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-rw-r--r--arch/x86/vdso/vclock_gettime.c159
-rw-r--r--arch/x86/vdso/vdso.S10
-rw-r--r--arch/x86/vdso/vdso32-setup.c443
-rw-r--r--arch/x86/vdso/vdso32.S22
-rw-r--r--arch/x86/vdso/vdso32/.gitignore1
-rw-r--r--arch/x86/vdso/vdso32/int80.S56
-rw-r--r--arch/x86/vdso/vdso32/note.S44
-rw-r--r--arch/x86/vdso/vdso32/syscall.S77
-rw-r--r--arch/x86/vdso/vdso32/sysenter.S116
-rw-r--r--arch/x86/vdso/vextern.h16
-rw-r--r--arch/x86/vdso/vgetcpu.c36
-rw-r--r--arch/x86/vdso/vma.c143
-rw-r--r--arch/x86/vdso/vvar.c12
-rw-r--r--arch/x86/video/Makefile1
-rw-r--r--arch/x86/video/fbdev.c29
-rw-r--r--arch/x86/virt/vmx/tdx/tdxcall.S96
-rw-r--r--arch/x86/xen/Kconfig104
-rw-r--r--arch/x86/xen/Makefile44
-rw-r--r--arch/x86/xen/apic.c208
-rw-r--r--arch/x86/xen/debugfs.c113
-rw-r--r--arch/x86/xen/debugfs.h5
-rw-r--r--arch/x86/xen/efi.c149
-rw-r--r--arch/x86/xen/enlighten.c1454
-rw-r--r--arch/x86/xen/enlighten_hvm.c336
-rw-r--r--arch/x86/xen/enlighten_pv.c1486
-rw-r--r--arch/x86/xen/enlighten_pvh.c74
-rw-r--r--arch/x86/xen/grant-table.c184
-rw-r--r--arch/x86/xen/irq.c108
-rw-r--r--arch/x86/xen/mmu.c2453
-rw-r--r--arch/x86/xen/mmu.h43
-rw-r--r--arch/x86/xen/mmu_hvm.c69
-rw-r--r--arch/x86/xen/mmu_pv.c2504
-rw-r--r--arch/x86/xen/multicalls.c215
-rw-r--r--arch/x86/xen/multicalls.h9
-rw-r--r--arch/x86/xen/p2m.c1099
-rw-r--r--arch/x86/xen/pci-swiotlb-xen.c67
-rw-r--r--arch/x86/xen/platform-pci-unplug.c121
-rw-r--r--arch/x86/xen/pmu.c586
-rw-r--r--arch/x86/xen/pmu.h22
-rw-r--r--arch/x86/xen/setup.c1025
-rw-r--r--arch/x86/xen/smp.c566
-rw-r--r--arch/x86/xen/smp.h45
-rw-r--r--arch/x86/xen/smp_hvm.c92
-rw-r--r--arch/x86/xen/smp_pv.c460
-rw-r--r--arch/x86/xen/spinlock.c451
-rw-r--r--arch/x86/xen/suspend.c98
-rw-r--r--arch/x86/xen/suspend_hvm.c27
-rw-r--r--arch/x86/xen/suspend_pv.c48
-rw-r--r--arch/x86/xen/time.c650
-rw-r--r--arch/x86/xen/trace.c21
-rw-r--r--arch/x86/xen/vdso.h4
-rw-r--r--arch/x86/xen/vga.c78
-rw-r--r--arch/x86/xen/xen-asm.S349
-rw-r--r--arch/x86/xen/xen-asm.h12
-rw-r--r--arch/x86/xen/xen-asm_32.S228
-rw-r--r--arch/x86/xen/xen-asm_64.S159
-rw-r--r--arch/x86/xen/xen-head.S90
-rw-r--r--arch/x86/xen/xen-ops.h111
1707 files changed, 369237 insertions, 149300 deletions
diff --git a/arch/x86/.gitignore b/arch/x86/.gitignore
index 028079065af6..f2e1d6c347fb 100644
--- a/arch/x86/.gitignore
+++ b/arch/x86/.gitignore
@@ -1,3 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
boot/compressed/vmlinux
tools/test_get_len
-
+tools/insn_sanity
+tools/insn_decoder_test
+purgatory/purgatory.ro
diff --git a/arch/x86/Kbuild b/arch/x86/Kbuild
index 0e103236b754..5a83da703e87 100644
--- a/arch/x86/Kbuild
+++ b/arch/x86/Kbuild
@@ -1,17 +1,32 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_ARCH_HAS_CC_PLATFORM) += coco/
+
+obj-y += entry/
+
+obj-$(CONFIG_PERF_EVENTS) += events/
obj-$(CONFIG_KVM) += kvm/
# Xen paravirtualization support
obj-$(CONFIG_XEN) += xen/
-# lguest paravirtualization support
-obj-$(CONFIG_LGUEST_GUEST) += lguest/
+obj-$(CONFIG_PVH) += platform/pvh/
+
+# Hyper-V paravirtualization support
+obj-$(subst m,y,$(CONFIG_HYPERV)) += hyperv/
+obj-y += realmode/
obj-y += kernel/
obj-y += mm/
obj-y += crypto/
-obj-y += vdso/
+
obj-$(CONFIG_IA32_EMULATION) += ia32/
obj-y += platform/
+obj-y += net/
+
+obj-$(CONFIG_KEXEC_FILE) += purgatory/
+
+# for cleaning
+subdir- += boot tools
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cc6c53a95bfd..53bab123a8ee 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1,133 +1,346 @@
+# SPDX-License-Identifier: GPL-2.0
# Select 32 or 64 bit
config 64BIT
- bool "64-bit kernel" if ARCH = "x86"
- default ARCH = "x86_64"
- ---help---
+ bool "64-bit kernel" if "$(ARCH)" = "x86"
+ default "$(ARCH)" != "i386"
+ help
Say yes to build a 64-bit kernel - formerly known as x86_64
Say no to build a 32-bit kernel - formerly known as i386
config X86_32
- def_bool !64BIT
+ def_bool y
+ depends on !64BIT
+ # Options that are inherently 32-bit kernel only:
+ select ARCH_WANT_IPC_PARSE_VERSION
+ select CLKSRC_I8253
+ select CLONE_BACKWARDS
+ select GENERIC_VDSO_32
+ select HAVE_DEBUG_STACKOVERFLOW
+ select KMAP_LOCAL
+ select MODULES_USE_ELF_REL
+ select OLD_SIGACTION
+ select ARCH_SPLIT_ARG64
config X86_64
- def_bool 64BIT
+ def_bool y
+ depends on 64BIT
+ # Options that are inherently 64-bit kernel only:
+ select ARCH_HAS_GIGANTIC_PAGE
+ select ARCH_SUPPORTS_INT128 if CC_HAS_INT128
+ select ARCH_SUPPORTS_PER_VMA_LOCK
+ select ARCH_USE_CMPXCHG_LOCKREF
+ select HAVE_ARCH_SOFT_DIRTY
+ select MODULES_USE_ELF_RELA
+ select NEED_DMA_MAP_STATE
+ select SWIOTLB
+ select ARCH_HAS_ELFCORE_COMPAT
+ select ZONE_DMA32
-### Arch settings
+config FORCE_DYNAMIC_FTRACE
+ def_bool y
+ depends on X86_32
+ depends on FUNCTION_TRACER
+ select DYNAMIC_FTRACE
+ help
+ We keep the static function tracing (!DYNAMIC_FTRACE) around
+ in order to test the non static function tracing in the
+ generic code, as other architectures still use it. But we
+ only need to keep it around for x86_64. No need to keep it
+ for x86_32. For x86_32, force DYNAMIC_FTRACE.
+#
+# Arch settings
+#
+# ( Note that options that are marked 'if X86_64' could in principle be
+# ported to 32-bit as well. )
+#
config X86
def_bool y
- select HAVE_AOUT if X86_32
- select HAVE_READQ
- select HAVE_WRITEQ
- select HAVE_UNSTABLE_SCHED_CLOCK
- select HAVE_IDE
- select HAVE_OPROFILE
- select HAVE_PERF_EVENTS
- select HAVE_IRQ_WORK
- select HAVE_IOREMAP_PROT
- select HAVE_KPROBES
- select HAVE_MEMBLOCK
- select ARCH_WANT_OPTIONAL_GPIOLIB
- select ARCH_WANT_FRAME_POINTERS
- select HAVE_DMA_ATTRS
- select HAVE_KRETPROBES
- select HAVE_OPTPROBES
- select HAVE_FTRACE_MCOUNT_RECORD
- select HAVE_C_RECORDMCOUNT
- select HAVE_DYNAMIC_FTRACE
- select HAVE_FUNCTION_TRACER
- select HAVE_FUNCTION_GRAPH_TRACER
- select HAVE_FUNCTION_GRAPH_FP_TEST
- select HAVE_FUNCTION_TRACE_MCOUNT_TEST
- select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
- select HAVE_SYSCALL_TRACEPOINTS
- select HAVE_KVM
+ #
+ # Note: keep this list sorted alphabetically
+ #
+ select ACPI_LEGACY_TABLES_LOOKUP if ACPI
+ select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI
+ select ARCH_32BIT_OFF_T if X86_32
+ select ARCH_CLOCKSOURCE_INIT
+ select ARCH_CORRECT_STACKTRACE_ON_KRETPROBE
+ select ARCH_ENABLE_HUGEPAGE_MIGRATION if X86_64 && HUGETLB_PAGE && MIGRATION
+ select ARCH_ENABLE_MEMORY_HOTPLUG if X86_64
+ select ARCH_ENABLE_MEMORY_HOTREMOVE if MEMORY_HOTPLUG
+ select ARCH_ENABLE_SPLIT_PMD_PTLOCK if (PGTABLE_LEVELS > 2) && (X86_64 || X86_PAE)
+ select ARCH_ENABLE_THP_MIGRATION if X86_64 && TRANSPARENT_HUGEPAGE
+ select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
+ select ARCH_HAS_CACHE_LINE_SIZE
+ select ARCH_HAS_CPU_CACHE_INVALIDATE_MEMREGION
+ select ARCH_HAS_CURRENT_STACK_POINTER
+ select ARCH_HAS_DEBUG_VIRTUAL
+ select ARCH_HAS_DEBUG_VM_PGTABLE if !X86_PAE
+ select ARCH_HAS_DEVMEM_IS_ALLOWED
+ select ARCH_HAS_EARLY_DEBUG if KGDB
+ select ARCH_HAS_ELF_RANDOMIZE
+ select ARCH_HAS_FAST_MULTIPLIER
+ select ARCH_HAS_FORTIFY_SOURCE
+ select ARCH_HAS_GCOV_PROFILE_ALL
+ select ARCH_HAS_KCOV if X86_64
+ select ARCH_HAS_MEM_ENCRYPT
+ select ARCH_HAS_MEMBARRIER_SYNC_CORE
+ select ARCH_HAS_NMI_SAFE_THIS_CPU_OPS
+ select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE
+ select ARCH_HAS_PMEM_API if X86_64
+ select ARCH_HAS_PTE_DEVMAP if X86_64
+ select ARCH_HAS_PTE_SPECIAL
+ select ARCH_HAS_NONLEAF_PMD_YOUNG if PGTABLE_LEVELS > 2
+ select ARCH_HAS_UACCESS_FLUSHCACHE if X86_64
+ select ARCH_HAS_COPY_MC if X86_64
+ select ARCH_HAS_SET_MEMORY
+ select ARCH_HAS_SET_DIRECT_MAP
+ select ARCH_HAS_STRICT_KERNEL_RWX
+ select ARCH_HAS_STRICT_MODULE_RWX
+ select ARCH_HAS_SYNC_CORE_BEFORE_USERMODE
+ select ARCH_HAS_SYSCALL_WRAPPER
+ select ARCH_HAS_UBSAN_SANITIZE_ALL
+ select ARCH_HAS_DEBUG_WX
+ select ARCH_HAS_ZONE_DMA_SET if EXPERT
+ select ARCH_HAVE_NMI_SAFE_CMPXCHG
+ select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI
+ select ARCH_MIGHT_HAVE_PC_PARPORT
+ select ARCH_MIGHT_HAVE_PC_SERIO
+ select ARCH_STACKWALK
+ select ARCH_SUPPORTS_ACPI
+ select ARCH_SUPPORTS_ATOMIC_RMW
+ select ARCH_SUPPORTS_DEBUG_PAGEALLOC
+ select ARCH_SUPPORTS_PAGE_TABLE_CHECK if X86_64
+ select ARCH_SUPPORTS_NUMA_BALANCING if X86_64
+ select ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP if NR_CPUS <= 4096
+ select ARCH_SUPPORTS_CFI_CLANG if X86_64
+ select ARCH_USES_CFI_TRAPS if X86_64 && CFI_CLANG
+ select ARCH_SUPPORTS_LTO_CLANG
+ select ARCH_SUPPORTS_LTO_CLANG_THIN
+ select ARCH_USE_BUILTIN_BSWAP
+ select ARCH_USE_MEMTEST
+ select ARCH_USE_QUEUED_RWLOCKS
+ select ARCH_USE_QUEUED_SPINLOCKS
+ select ARCH_USE_SYM_ANNOTATIONS
+ select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
+ select ARCH_WANT_DEFAULT_BPF_JIT if X86_64
+ select ARCH_WANTS_DYNAMIC_TASK_STRUCT
+ select ARCH_WANTS_NO_INSTR
+ select ARCH_WANT_GENERAL_HUGETLB
+ select ARCH_WANT_HUGE_PMD_SHARE
+ select ARCH_WANT_LD_ORPHAN_WARN
+ select ARCH_WANT_OPTIMIZE_VMEMMAP if X86_64
+ select ARCH_WANTS_THP_SWAP if X86_64
+ select ARCH_HAS_PARANOID_L1D_FLUSH
+ select BUILDTIME_TABLE_SORT
+ select CLKEVT_I8253
+ select CLOCKSOURCE_VALIDATE_LAST_CYCLE
+ select CLOCKSOURCE_WATCHDOG
+ # Word-size accesses may read uninitialized data past the trailing \0
+ # in strings and cause false KMSAN reports.
+ select DCACHE_WORD_ACCESS if !KMSAN
+ select DYNAMIC_SIGFRAME
+ select EDAC_ATOMIC_SCRUB
+ select EDAC_SUPPORT
+ select GENERIC_CLOCKEVENTS_BROADCAST if X86_64 || (X86_32 && X86_LOCAL_APIC)
+ select GENERIC_CLOCKEVENTS_MIN_ADJUST
+ select GENERIC_CMOS_UPDATE
+ select GENERIC_CPU_AUTOPROBE
+ select GENERIC_CPU_VULNERABILITIES
+ select GENERIC_EARLY_IOREMAP
+ select GENERIC_ENTRY
+ select GENERIC_IOMAP
+ select GENERIC_IRQ_EFFECTIVE_AFF_MASK if SMP
+ select GENERIC_IRQ_MATRIX_ALLOCATOR if X86_LOCAL_APIC
+ select GENERIC_IRQ_MIGRATION if SMP
+ select GENERIC_IRQ_PROBE
+ select GENERIC_IRQ_RESERVATION_MODE
+ select GENERIC_IRQ_SHOW
+ select GENERIC_PENDING_IRQ if SMP
+ select GENERIC_PTDUMP
+ select GENERIC_SMP_IDLE_THREAD
+ select GENERIC_TIME_VSYSCALL
+ select GENERIC_GETTIMEOFDAY
+ select GENERIC_VDSO_TIME_NS
+ select GUP_GET_PXX_LOW_HIGH if X86_PAE
+ select HARDIRQS_SW_RESEND
+ select HARDLOCKUP_CHECK_TIMESTAMP if X86_64
+ select HAS_IOPORT
+ select HAVE_ACPI_APEI if ACPI
+ select HAVE_ACPI_APEI_NMI if ACPI
+ select HAVE_ALIGNED_STRUCT_PAGE if SLUB
+ select HAVE_ARCH_AUDITSYSCALL
+ select HAVE_ARCH_HUGE_VMAP if X86_64 || X86_PAE
+ select HAVE_ARCH_HUGE_VMALLOC if X86_64
+ select HAVE_ARCH_JUMP_LABEL
+ select HAVE_ARCH_JUMP_LABEL_RELATIVE
+ select HAVE_ARCH_KASAN if X86_64
+ select HAVE_ARCH_KASAN_VMALLOC if X86_64
+ select HAVE_ARCH_KFENCE
+ select HAVE_ARCH_KMSAN if X86_64
select HAVE_ARCH_KGDB
+ select HAVE_ARCH_MMAP_RND_BITS if MMU
+ select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
+ select HAVE_ARCH_COMPAT_MMAP_BASES if MMU && COMPAT
+ select HAVE_ARCH_PREL32_RELOCATIONS
+ select HAVE_ARCH_SECCOMP_FILTER
+ select HAVE_ARCH_THREAD_STRUCT_WHITELIST
+ select HAVE_ARCH_STACKLEAK
select HAVE_ARCH_TRACEHOOK
- select HAVE_GENERIC_DMA_COHERENT if X86_32
+ select HAVE_ARCH_TRANSPARENT_HUGEPAGE
+ select HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD if X86_64
+ select HAVE_ARCH_USERFAULTFD_WP if X86_64 && USERFAULTFD
+ select HAVE_ARCH_USERFAULTFD_MINOR if X86_64 && USERFAULTFD
+ select HAVE_ARCH_VMAP_STACK if X86_64
+ select HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET
+ select HAVE_ARCH_WITHIN_STACK_FRAMES
+ select HAVE_ASM_MODVERSIONS
+ select HAVE_CMPXCHG_DOUBLE
+ select HAVE_CMPXCHG_LOCAL
+ select HAVE_CONTEXT_TRACKING_USER if X86_64
+ select HAVE_CONTEXT_TRACKING_USER_OFFSTACK if HAVE_CONTEXT_TRACKING_USER
+ select HAVE_C_RECORDMCOUNT
+ select HAVE_OBJTOOL_MCOUNT if HAVE_OBJTOOL
+ select HAVE_OBJTOOL_NOP_MCOUNT if HAVE_OBJTOOL_MCOUNT
+ select HAVE_BUILDTIME_MCOUNT_SORT
+ select HAVE_DEBUG_KMEMLEAK
+ select HAVE_DMA_CONTIGUOUS
+ select HAVE_DYNAMIC_FTRACE
+ select HAVE_DYNAMIC_FTRACE_WITH_REGS
+ select HAVE_DYNAMIC_FTRACE_WITH_ARGS if X86_64
+ select HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
+ select HAVE_SAMPLE_FTRACE_DIRECT if X86_64
+ select HAVE_SAMPLE_FTRACE_DIRECT_MULTI if X86_64
+ select HAVE_EBPF_JIT
select HAVE_EFFICIENT_UNALIGNED_ACCESS
- select USER_STACKTRACE_SUPPORT
- select HAVE_REGS_AND_STACK_ACCESS_API
- select HAVE_DMA_API_DEBUG
- select HAVE_KERNEL_GZIP
+ select HAVE_EISA
+ select HAVE_EXIT_THREAD
+ select HAVE_FAST_GUP
+ select HAVE_FENTRY if X86_64 || DYNAMIC_FTRACE
+ select HAVE_FTRACE_MCOUNT_RECORD
+ select HAVE_FUNCTION_GRAPH_TRACER if X86_32 || (X86_64 && DYNAMIC_FTRACE)
+ select HAVE_FUNCTION_TRACER
+ select HAVE_GCC_PLUGINS
+ select HAVE_HW_BREAKPOINT
+ select HAVE_IOREMAP_PROT
+ select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
+ select HAVE_IRQ_TIME_ACCOUNTING
+ select HAVE_JUMP_LABEL_HACK if HAVE_OBJTOOL
select HAVE_KERNEL_BZIP2
+ select HAVE_KERNEL_GZIP
+ select HAVE_KERNEL_LZ4
select HAVE_KERNEL_LZMA
- select HAVE_KERNEL_XZ
select HAVE_KERNEL_LZO
- select HAVE_HW_BREAKPOINT
+ select HAVE_KERNEL_XZ
+ select HAVE_KERNEL_ZSTD
+ select HAVE_KPROBES
+ select HAVE_KPROBES_ON_FTRACE
+ select HAVE_FUNCTION_ERROR_INJECTION
+ select HAVE_KRETPROBES
+ select HAVE_RETHOOK
+ select HAVE_KVM
+ select HAVE_LIVEPATCH if X86_64
select HAVE_MIXED_BREAKPOINTS_REGS
- select PERF_EVENTS
+ select HAVE_MOD_ARCH_SPECIFIC
+ select HAVE_MOVE_PMD
+ select HAVE_MOVE_PUD
+ select HAVE_NOINSTR_HACK if HAVE_OBJTOOL
+ select HAVE_NMI
+ select HAVE_NOINSTR_VALIDATION if HAVE_OBJTOOL
+ select HAVE_OBJTOOL if X86_64
+ select HAVE_OPTPROBES
+ select HAVE_PCSPKR_PLATFORM
+ select HAVE_PERF_EVENTS
select HAVE_PERF_EVENTS_NMI
- select ANON_INODES
- select HAVE_ARCH_KMEMCHECK
+ select HAVE_HARDLOCKUP_DETECTOR_PERF if PERF_EVENTS && HAVE_PERF_EVENTS_NMI
+ select HAVE_PCI
+ select HAVE_PERF_REGS
+ select HAVE_PERF_USER_STACK_DUMP
+ select MMU_GATHER_RCU_TABLE_FREE if PARAVIRT
+ select MMU_GATHER_MERGE_VMAS
+ select HAVE_POSIX_CPU_TIMERS_TASK_WORK
+ select HAVE_REGS_AND_STACK_ACCESS_API
+ select HAVE_RELIABLE_STACKTRACE if UNWINDER_ORC || STACK_VALIDATION
+ select HAVE_FUNCTION_ARG_ACCESS_API
+ select HAVE_SETUP_PER_CPU_AREA
+ select HAVE_SOFTIRQ_ON_OWN_STACK
+ select HAVE_STACKPROTECTOR if CC_HAS_SANE_STACKPROTECTOR
+ select HAVE_STACK_VALIDATION if HAVE_OBJTOOL
+ select HAVE_STATIC_CALL
+ select HAVE_STATIC_CALL_INLINE if HAVE_OBJTOOL
+ select HAVE_PREEMPT_DYNAMIC_CALL
+ select HAVE_RSEQ
+ select HAVE_RUST if X86_64
+ select HAVE_SYSCALL_TRACEPOINTS
+ select HAVE_UACCESS_VALIDATION if HAVE_OBJTOOL
+ select HAVE_UNSTABLE_SCHED_CLOCK
select HAVE_USER_RETURN_NOTIFIER
- select HAVE_ARCH_JUMP_LABEL
- select HAVE_TEXT_POKE_SMP
- select HAVE_GENERIC_HARDIRQS
- select HAVE_SPARSE_IRQ
- select GENERIC_FIND_FIRST_BIT
- select GENERIC_FIND_NEXT_BIT
- select GENERIC_IRQ_PROBE
- select GENERIC_PENDING_IRQ if SMP
- select GENERIC_IRQ_SHOW
+ select HAVE_GENERIC_VDSO
+ select HOTPLUG_SMT if SMP
select IRQ_FORCED_THREADING
- select USE_GENERIC_SMP_HELPERS if SMP
- select ARCH_NO_SYSDEV_OPS
+ select NEED_PER_CPU_EMBED_FIRST_CHUNK
+ select NEED_PER_CPU_PAGE_FIRST_CHUNK
+ select NEED_SG_DMA_LENGTH
+ select PCI_DOMAINS if PCI
+ select PCI_LOCKLESS_CONFIG if PCI
+ select PERF_EVENTS
+ select RTC_LIB
+ select RTC_MC146818_LIB
+ select SPARSE_IRQ
+ select SYSCTL_EXCEPTION_TRACE
+ select THREAD_INFO_IN_TASK
+ select TRACE_IRQFLAGS_SUPPORT
+ select TRACE_IRQFLAGS_NMI_SUPPORT
+ select USER_STACKTRACE_SUPPORT
+ select HAVE_ARCH_KCSAN if X86_64
+ select X86_FEATURE_NAMES if PROC_FS
+ select PROC_PID_ARCH_STATUS if PROC_FS
+ select HAVE_ARCH_NODE_DEV_GROUP if X86_SGX
+ select FUNCTION_ALIGNMENT_16B if X86_64 || X86_ALIGNMENT_16
+ select FUNCTION_ALIGNMENT_4B
+ imply IMA_SECURE_AND_OR_TRUSTED_BOOT if EFI
+ select HAVE_DYNAMIC_FTRACE_NO_PATCHABLE
config INSTRUCTION_DECODER
- def_bool (KPROBES || PERF_EVENTS)
+ def_bool y
+ depends on KPROBES || PERF_EVENTS || UPROBES
config OUTPUT_FORMAT
string
default "elf32-i386" if X86_32
default "elf64-x86-64" if X86_64
-config ARCH_DEFCONFIG
- string
- default "arch/x86/configs/i386_defconfig" if X86_32
- default "arch/x86/configs/x86_64_defconfig" if X86_64
-
-config GENERIC_CMOS_UPDATE
- def_bool y
-
-config CLOCKSOURCE_WATCHDOG
- def_bool y
-
-config GENERIC_CLOCKEVENTS
- def_bool y
-
-config GENERIC_CLOCKEVENTS_BROADCAST
- def_bool y
- depends on X86_64 || (X86_32 && X86_LOCAL_APIC)
-
config LOCKDEP_SUPPORT
def_bool y
config STACKTRACE_SUPPORT
def_bool y
-config HAVE_LATENCYTOP_SUPPORT
- def_bool y
-
config MMU
def_bool y
-config ZONE_DMA
- def_bool y
+config ARCH_MMAP_RND_BITS_MIN
+ default 28 if 64BIT
+ default 8
-config SBUS
- bool
+config ARCH_MMAP_RND_BITS_MAX
+ default 32 if 64BIT
+ default 16
-config NEED_DMA_MAP_STATE
- def_bool (X86_64 || DMAR || DMA_API_DEBUG)
+config ARCH_MMAP_RND_COMPAT_BITS_MIN
+ default 8
-config NEED_SG_DMA_LENGTH
- def_bool y
+config ARCH_MMAP_RND_COMPAT_BITS_MAX
+ default 16
-config GENERIC_ISA_DMA
- def_bool ISA_DMA_API
+config SBUS
+ bool
-config GENERIC_IOMAP
+config GENERIC_ISA_DMA
def_bool y
+ depends on ISA_DMA_API
+
+config GENERIC_CSUM
+ bool
+ default y if KMSAN || KASAN
config GENERIC_BUG
def_bool y
@@ -137,78 +350,33 @@ config GENERIC_BUG
config GENERIC_BUG_RELATIVE_POINTERS
bool
-config GENERIC_HWEIGHT
- def_bool y
-
-config GENERIC_GPIO
- bool
-
config ARCH_MAY_HAVE_PC_FDC
- def_bool ISA_DMA_API
-
-config RWSEM_GENERIC_SPINLOCK
- def_bool !X86_XADD
-
-config RWSEM_XCHGADD_ALGORITHM
- def_bool X86_XADD
-
-config ARCH_HAS_CPU_IDLE_WAIT
def_bool y
+ depends on ISA_DMA_API
config GENERIC_CALIBRATE_DELAY
def_bool y
-config GENERIC_TIME_VSYSCALL
- bool
- default X86_64
-
config ARCH_HAS_CPU_RELAX
def_bool y
-config ARCH_HAS_DEFAULT_IDLE
- def_bool y
-
-config ARCH_HAS_CACHE_LINE_SIZE
- def_bool y
-
-config HAVE_SETUP_PER_CPU_AREA
- def_bool y
-
-config NEED_PER_CPU_EMBED_FIRST_CHUNK
- def_bool y
-
-config NEED_PER_CPU_PAGE_FIRST_CHUNK
- def_bool y
-
-config HAVE_CPUMASK_OF_CPU_MAP
- def_bool X86_64_SMP
-
config ARCH_HIBERNATION_POSSIBLE
def_bool y
config ARCH_SUSPEND_POSSIBLE
def_bool y
-config ZONE_DMA32
- bool
- default X86_64
-
-config ARCH_POPULATES_NODE_MAP
- def_bool y
-
config AUDIT_ARCH
- bool
- default X86_64
-
-config ARCH_SUPPORTS_OPTIMIZED_INLINING
- def_bool y
+ def_bool y if X86_64
-config ARCH_SUPPORTS_DEBUG_PAGEALLOC
- def_bool y
+config KASAN_SHADOW_OFFSET
+ hex
+ depends on KASAN
+ default 0xdffffc0000000000
config HAVE_INTEL_TXT
def_bool y
- depends on EXPERIMENTAL && DMAR && ACPI
+ depends on INTEL_IOMMU && ACPI
config X86_32_SMP
def_bool y
@@ -218,44 +386,44 @@ config X86_64_SMP
def_bool y
depends on X86_64 && SMP
-config X86_HT
+config ARCH_SUPPORTS_UPROBES
def_bool y
- depends on SMP
-config X86_32_LAZY_GS
+config FIX_EARLYCON_MEM
def_bool y
- depends on X86_32 && !CC_STACKPROTECTOR
-
-config ARCH_HWEIGHT_CFLAGS
- string
- default "-fcall-saved-ecx -fcall-saved-edx" if X86_32
- default "-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11" if X86_64
-config KTIME_SCALAR
- def_bool X86_32
+config DYNAMIC_PHYSICAL_MASK
+ bool
-config ARCH_CPU_PROBE_RELEASE
- def_bool y
- depends on HOTPLUG_CPU
+config PGTABLE_LEVELS
+ int
+ default 5 if X86_5LEVEL
+ default 4 if X86_64
+ default 3 if X86_PAE
+ default 2
-source "init/Kconfig"
-source "kernel/Kconfig.freezer"
+config CC_HAS_SANE_STACKPROTECTOR
+ bool
+ default $(success,$(srctree)/scripts/gcc-x86_64-has-stack-protector.sh $(CC) $(CLANG_FLAGS)) if 64BIT
+ default $(success,$(srctree)/scripts/gcc-x86_32-has-stack-protector.sh $(CC) $(CLANG_FLAGS))
+ help
+ We have to make sure stack protector is unconditionally disabled if
+ the compiler produces broken code or if it does not let us control
+ the segment on 32-bit kernels.
menu "Processor type and features"
-source "kernel/time/Kconfig"
-
config SMP
bool "Symmetric multi-processing support"
- ---help---
+ help
This enables support for systems with more than one CPU. If you have
- a system with only one CPU, like most personal computers, say N. If
- you have a system with more than one CPU, say Y.
+ a system with only one CPU, say N. If you have a system with more
+ than one CPU, say Y.
- If you say N here, the kernel will run on single and multiprocessor
+ If you say N here, the kernel will run on uni- and multiprocessor
machines, but will use only one CPU of a multiprocessor machine. If
you say Y here, the kernel will run on many, but not all,
- singleprocessor machines. On a singleprocessor machine, the kernel
+ uniprocessor machines. On a uniprocessor machine, the kernel
will run faster if you say N here.
Note that if you say Y here and choose architecture "586" or
@@ -267,87 +435,141 @@ config SMP
Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
Management" code will be disabled if you say Y here.
- See also <file:Documentation/i386/IO-APIC.txt>,
- <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
+ See also <file:Documentation/arch/x86/i386/IO-APIC.rst>,
+ <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO available at
<http://www.tldp.org/docs.html#howto>.
If you don't know what to do here, say N.
+config X86_FEATURE_NAMES
+ bool "Processor feature human-readable names" if EMBEDDED
+ default y
+ help
+ This option compiles in a table of x86 feature bits and corresponding
+ names. This is required to support /proc/cpuinfo and a few kernel
+ messages. You can disable this to save space, at the expense of
+ making those few kernel messages show numeric feature bits instead.
+
+ If in doubt, say Y.
+
config X86_X2APIC
bool "Support x2apic"
- depends on X86_LOCAL_APIC && X86_64 && INTR_REMAP
- ---help---
+ depends on X86_LOCAL_APIC && X86_64 && (IRQ_REMAP || HYPERVISOR_GUEST)
+ help
This enables x2apic support on CPUs that have this feature.
This allows 32-bit apic IDs (so it can support very large systems),
and accesses the local apic via MSRs not via mmio.
+ Some Intel systems circa 2022 and later are locked into x2APIC mode
+ and can not fall back to the legacy APIC modes if SGX or TDX are
+ enabled in the BIOS. They will boot with very reduced functionality
+ without enabling this option.
+
If you don't know what to do here, say N.
config X86_MPPARSE
bool "Enable MPS table" if ACPI
default y
depends on X86_LOCAL_APIC
- ---help---
+ help
For old smp systems that do not have proper acpi support. Newer systems
(esp with 64bit cpus) with acpi support, MADT and DSDT will override it
+config GOLDFISH
+ def_bool y
+ depends on X86_GOLDFISH
+
+config X86_CPU_RESCTRL
+ bool "x86 CPU resource control support"
+ depends on X86 && (CPU_SUP_INTEL || CPU_SUP_AMD)
+ select KERNFS
+ select PROC_CPU_RESCTRL if PROC_FS
+ help
+ Enable x86 CPU resource control support.
+
+ Provide support for the allocation and monitoring of system resources
+ usage by the CPU.
+
+ Intel calls this Intel Resource Director Technology
+ (Intel(R) RDT). More information about RDT can be found in the
+ Intel x86 Architecture Software Developer Manual.
+
+ AMD calls this AMD Platform Quality of Service (AMD QoS).
+ More information about AMD QoS can be found in the AMD64 Technology
+ Platform Quality of Service Extensions manual.
+
+ Say N if unsure.
+
+if X86_32
config X86_BIGSMP
bool "Support for big SMP systems with more than 8 CPUs"
- depends on X86_32 && SMP
- ---help---
- This option is needed for the systems that have more than 8 CPUs
+ depends on SMP
+ help
+ This option is needed for the systems that have more than 8 CPUs.
-if X86_32
config X86_EXTENDED_PLATFORM
bool "Support for extended (non-PC) x86 platforms"
default y
- ---help---
+ help
If you disable this option then the kernel will only support
standard PC platforms. (which covers the vast majority of
systems out there.)
If you enable this option then you'll be able to select support
for the following (non-PC) 32 bit x86 platforms:
+ Goldfish (Android emulator)
AMD Elan
- NUMAQ (IBM/Sequent)
RDC R-321x SoC
SGI 320/540 (Visual Workstation)
- Summit/EXA (IBM x440)
- Unisys ES7000 IA32 series
+ STA2X11-based (e.g. Northville)
Moorestown MID devices
If you have one of these systems, or if you want to build a
generic distribution kernel, say Y here - otherwise say N.
-endif
+endif # X86_32
if X86_64
config X86_EXTENDED_PLATFORM
bool "Support for extended (non-PC) x86 platforms"
default y
- ---help---
+ help
If you disable this option then the kernel will only support
standard PC platforms. (which covers the vast majority of
systems out there.)
If you enable this option then you'll be able to select support
for the following (non-PC) 64 bit x86 platforms:
+ Numascale NumaChip
ScaleMP vSMP
SGI Ultraviolet
If you have one of these systems, or if you want to build a
generic distribution kernel, say Y here - otherwise say N.
-endif
+endif # X86_64
# This is an alphabetically sorted list of 64 bit extended platforms
# Please maintain the alphabetic order if and when there are additions
+config X86_NUMACHIP
+ bool "Numascale NumaChip"
+ depends on X86_64
+ depends on X86_EXTENDED_PLATFORM
+ depends on NUMA
+ depends on SMP
+ depends on X86_X2APIC
+ depends on PCI_MMCONFIG
+ help
+ Adds support for Numascale NumaChip large-SMP systems. Needed to
+ enable more than ~168 cores.
+ If you don't have one of these, you should say N here.
config X86_VSMP
bool "ScaleMP vSMP"
- select PARAVIRT_GUEST
+ select HYPERVISOR_GUEST
select PARAVIRT
depends on X86_64 && PCI
depends on X86_EXTENDED_PLATFORM
- ---help---
+ depends on SMP
+ help
Support for ScaleMP vSMP systems. Say 'Y' here if this kernel is
supposed to run on these EM64T-based machines. Only choose this option
if you have one of these machines.
@@ -357,58 +579,127 @@ config X86_UV
depends on X86_64
depends on X86_EXTENDED_PLATFORM
depends on NUMA
+ depends on EFI
+ depends on KEXEC_CORE
depends on X86_X2APIC
- ---help---
+ depends on PCI
+ help
This option is needed in order to support SGI Ultraviolet systems.
If you don't have one of these, you should say N here.
# Following is an alphabetically sorted list of 32 bit extended platforms
# Please maintain the alphabetic order if and when there are additions
-config X86_ELAN
- bool "AMD Elan"
- depends on X86_32
+config X86_GOLDFISH
+ bool "Goldfish (Virtual Platform)"
depends on X86_EXTENDED_PLATFORM
- ---help---
- Select this for an AMD Elan processor.
-
- Do not use this option for K6/Athlon/Opteron processors!
-
- If unsure, choose "PC-compatible" instead.
+ help
+ Enable support for the Goldfish virtual platform used primarily
+ for Android development. Unless you are building for the Android
+ Goldfish emulator say N here.
config X86_INTEL_CE
bool "CE4100 TV platform"
depends on PCI
depends on PCI_GODIRECT
+ depends on X86_IO_APIC
depends on X86_32
depends on X86_EXTENDED_PLATFORM
select X86_REBOOTFIXUPS
select OF
select OF_EARLY_FLATTREE
- ---help---
+ help
Select for the Intel CE media processor (CE4100) SOC.
This option compiles in support for the CE4100 SOC for settop
boxes and media devices.
-config X86_MRST
- bool "Moorestown MID platform"
+config X86_INTEL_MID
+ bool "Intel MID platform support"
+ depends on X86_EXTENDED_PLATFORM
+ depends on X86_PLATFORM_DEVICES
depends on PCI
- depends on PCI_GOANY
+ depends on X86_64 || (PCI_GOANY && X86_32)
+ depends on X86_IO_APIC
+ select I2C
+ select DW_APB_TIMER
+ select INTEL_SCU_PCI
+ help
+ Select to build a kernel capable of supporting Intel MID (Mobile
+ Internet Device) platform systems which do not have the PCI legacy
+ interfaces. If you are building for a PC class system say N here.
+
+ Intel MID platforms are based on an Intel processor and chipset which
+ consume less power than most of the x86 derivatives.
+
+config X86_INTEL_QUARK
+ bool "Intel Quark platform support"
depends on X86_32
depends on X86_EXTENDED_PLATFORM
+ depends on X86_PLATFORM_DEVICES
+ depends on X86_TSC
+ depends on PCI
+ depends on PCI_GOANY
depends on X86_IO_APIC
- select APB_TIMER
- select I2C
- select SPI
- select INTEL_SCU_IPC
- select X86_PLATFORM_DEVICES
- ---help---
- Moorestown is Intel's Low Power Intel Architecture (LPIA) based Moblin
- Internet Device(MID) platform. Moorestown consists of two chips:
- Lincroft (CPU core, graphics, and memory controller) and Langwell IOH.
- Unlike standard x86 PCs, Moorestown does not have many legacy devices
- nor standard legacy replacement devices/features. e.g. Moorestown does
- not contain i8259, i8254, HPET, legacy BIOS, most of the io ports.
+ select IOSF_MBI
+ select INTEL_IMR
+ select COMMON_CLK
+ help
+ Select to include support for Quark X1000 SoC.
+ Say Y here if you have a Quark based system such as the Arduino
+ compatible Intel Galileo.
+
+config X86_INTEL_LPSS
+ bool "Intel Low Power Subsystem Support"
+ depends on X86 && ACPI && PCI
+ select COMMON_CLK
+ select PINCTRL
+ select IOSF_MBI
+ help
+ Select to build support for Intel Low Power Subsystem such as
+ found on Intel Lynxpoint PCH. Selecting this option enables
+ things like clock tree (common clock framework) and pincontrol
+ which are needed by the LPSS peripheral drivers.
+
+config X86_AMD_PLATFORM_DEVICE
+ bool "AMD ACPI2Platform devices support"
+ depends on ACPI
+ select COMMON_CLK
+ select PINCTRL
+ help
+ Select to interpret AMD specific ACPI device to platform device
+ such as I2C, UART, GPIO found on AMD Carrizo and later chipsets.
+ I2C and UART depend on COMMON_CLK to set clock. GPIO driver is
+ implemented under PINCTRL subsystem.
+
+config IOSF_MBI
+ tristate "Intel SoC IOSF Sideband support for SoC platforms"
+ depends on PCI
+ help
+ This option enables sideband register access support for Intel SoC
+ platforms. On these platforms the IOSF sideband is used in lieu of
+ MSR's for some register accesses, mostly but not limited to thermal
+ and power. Drivers may query the availability of this device to
+ determine if they need the sideband in order to work on these
+ platforms. The sideband is available on the following SoC products.
+ This list is not meant to be exclusive.
+ - BayTrail
+ - Braswell
+ - Quark
+
+ You should say Y if you are running a kernel on one of these SoC's.
+
+config IOSF_MBI_DEBUG
+ bool "Enable IOSF sideband access through debugfs"
+ depends on IOSF_MBI && DEBUG_FS
+ help
+ Select this option to expose the IOSF sideband access registers (MCR,
+ MDR, MCRX) through debugfs to write and read register information from
+ different units on the SoC. This is most useful for obtaining device
+ state information for debug and analysis. As this is a general access
+ mechanism, users of this option would have specific knowledge of the
+ device they want to access.
+
+ If you don't require the option or are in doubt, say N.
config X86_RDC321X
bool "RDC R-321x SoC"
@@ -416,7 +707,7 @@ config X86_RDC321X
depends on X86_EXTENDED_PLATFORM
select M486
select X86_REBOOTFIXUPS
- ---help---
+ help
This option is needed for RDC R-321x system-on-chip, also known
as R-8610-(G).
If you don't have one of these chips, you should say N here.
@@ -425,68 +716,40 @@ config X86_32_NON_STANDARD
bool "Support non-standard 32-bit SMP architectures"
depends on X86_32 && SMP
depends on X86_EXTENDED_PLATFORM
- ---help---
- This option compiles in the NUMAQ, Summit, bigsmp, ES7000, default
- subarchitectures. It is intended for a generic binary kernel.
- if you select them all, kernel will probe it one by one. and will
- fallback to default.
+ help
+ This option compiles in the bigsmp and STA2X11 default
+ subarchitectures. It is intended for a generic binary
+ kernel. If you select them all, kernel will probe it one by
+ one and will fallback to default.
# Alphabetically sorted list of Non standard 32 bit platforms
-config X86_NUMAQ
- bool "NUMAQ (IBM/Sequent)"
- depends on X86_32_NON_STANDARD
- depends on PCI
- select NUMA
- select X86_MPPARSE
- ---help---
- This option is used for getting Linux to run on a NUMAQ (IBM/Sequent)
- NUMA multiquad box. This changes the way that processors are
- bootstrapped, and uses Clustered Logical APIC addressing mode instead
- of Flat Logical. You will need a new lynxer.elf file to flash your
- firmware with - send email to <Martin.Bligh@us.ibm.com>.
-
config X86_SUPPORTS_MEMORY_FAILURE
def_bool y
# MCE code calls memory_failure():
depends on X86_MCE
# On 32-bit this adds too big of NODES_SHIFT and we run out of page flags:
- depends on !X86_NUMAQ
# On 32-bit SPARSEMEM adds too big of SECTIONS_WIDTH:
depends on X86_64 || !SPARSEMEM
select ARCH_SUPPORTS_MEMORY_FAILURE
-config X86_VISWS
- bool "SGI 320/540 (Visual Workstation)"
- depends on X86_32 && PCI && X86_MPPARSE && PCI_GODIRECT
- depends on X86_32_NON_STANDARD
- ---help---
- The SGI Visual Workstation series is an IA32-based workstation
- based on SGI systems chips with some legacy PC hardware attached.
-
- Say Y here to create a kernel to run on the SGI 320 or 540.
-
- A kernel compiled for the Visual Workstation will run on general
- PCs as well. See <file:Documentation/sgi-visws.txt> for details.
-
-config X86_SUMMIT
- bool "Summit/EXA (IBM x440)"
- depends on X86_32_NON_STANDARD
- ---help---
- This option is needed for IBM systems that use the Summit/EXA chipset.
- In particular, it is needed for the x440.
-
-config X86_ES7000
- bool "Unisys ES7000 IA32 series"
- depends on X86_32_NON_STANDARD && X86_BIGSMP
- ---help---
- Support for Unisys ES7000 systems. Say 'Y' here if this kernel is
- supposed to run on an IA32-based Unisys ES7000 system.
+config STA2X11
+ bool "STA2X11 Companion Chip Support"
+ depends on X86_32_NON_STANDARD && PCI
+ select SWIOTLB
+ select MFD_STA2X11
+ select GPIOLIB
+ help
+ This adds support for boards based on the STA2X11 IO-Hub,
+ a.k.a. "ConneXt". The chip is used in place of the standard
+ PC chipset, so all "standard" peripherals are missing. If this
+ option is selected the kernel will still be able to boot on
+ standard PC machines.
config X86_32_IRIS
tristate "Eurobraille/Iris poweroff module"
depends on X86_32
- ---help---
+ help
The Iris machines from EuroBraille do not have APM or ACPI support
to shut themselves down properly. A special I/O sequence is
needed to do so, which is what this module does at
@@ -500,7 +763,7 @@ config SCHED_OMIT_FRAME_POINTER
def_bool y
prompt "Single-depth WCHAN output"
depends on X86
- ---help---
+ help
Calculate simpler /proc/<PID>/wchan values. If this option
is disabled then wchan values will recurse back to the
caller function. This provides more accurate wchan values,
@@ -508,107 +771,146 @@ config SCHED_OMIT_FRAME_POINTER
If in doubt, say "Y".
-menuconfig PARAVIRT_GUEST
- bool "Paravirtualized guest support"
- ---help---
- Say Y here to get to see options related to running Linux under
- various hypervisors. This option alone does not add any kernel code.
-
- If you say N, all options in this submenu will be skipped and disabled.
-
-if PARAVIRT_GUEST
-
-source "arch/x86/xen/Kconfig"
-
-config KVM_CLOCK
- bool "KVM paravirtualized clock"
- select PARAVIRT
- select PARAVIRT_CLOCK
- ---help---
- Turning on this option will allow you to run a paravirtualized clock
- when running over the KVM hypervisor. Instead of relying on a PIT
- (or probably other) emulation by the underlying device model, the host
- provides the guest with timing infrastructure such as time of day, and
- system time
+menuconfig HYPERVISOR_GUEST
+ bool "Linux guest support"
+ help
+ Say Y here to enable options for running Linux under various hyper-
+ visors. This option enables basic hypervisor detection and platform
+ setup.
-config KVM_GUEST
- bool "KVM Guest support"
- select PARAVIRT
- ---help---
- This option enables various optimizations for running under the KVM
- hypervisor.
+ If you say N, all options in this submenu will be skipped and
+ disabled, and Linux guest support won't be built in.
-source "arch/x86/lguest/Kconfig"
+if HYPERVISOR_GUEST
config PARAVIRT
bool "Enable paravirtualization code"
- ---help---
+ depends on HAVE_STATIC_CALL
+ help
This changes the kernel so it can modify itself when it is run
under a hypervisor, potentially improving performance significantly
over full virtualization. However, when run without a hypervisor
the kernel is theoretically slower and slightly larger.
+config PARAVIRT_XXL
+ bool
+
+config PARAVIRT_DEBUG
+ bool "paravirt-ops debugging"
+ depends on PARAVIRT && DEBUG_KERNEL
+ help
+ Enable to debug paravirt_ops internals. Specifically, BUG if
+ a paravirt_op is missing when it is called.
+
config PARAVIRT_SPINLOCKS
bool "Paravirtualization layer for spinlocks"
- depends on PARAVIRT && SMP && EXPERIMENTAL
- ---help---
+ depends on PARAVIRT && SMP
+ help
Paravirtualized spinlocks allow a pvops backend to replace the
spinlock implementation with something virtualization-friendly
(for example, block the virtual CPU rather than spinning).
- Unfortunately the downside is an up to 5% performance hit on
- native kernels, with various workloads.
+ It has a minimal impact on native kernels and gives a nice performance
+ benefit on paravirtualized KVM / Xen kernels.
- If you are unsure how to answer this question, answer N.
+ If you are unsure how to answer this question, answer Y.
-config PARAVIRT_CLOCK
- bool
+config X86_HV_CALLBACK_VECTOR
+ def_bool n
-endif
+source "arch/x86/xen/Kconfig"
-config PARAVIRT_DEBUG
- bool "paravirt-ops debugging"
- depends on PARAVIRT && DEBUG_KERNEL
- ---help---
- Enable to debug paravirt_ops internals. Specifically, BUG if
- a paravirt_op is missing when it is called.
+config KVM_GUEST
+ bool "KVM Guest support (including kvmclock)"
+ depends on PARAVIRT
+ select PARAVIRT_CLOCK
+ select ARCH_CPUIDLE_HALTPOLL
+ select X86_HV_CALLBACK_VECTOR
+ default y
+ help
+ This option enables various optimizations for running under the KVM
+ hypervisor. It includes a paravirtualized clock, so that instead
+ of relying on a PIT (or probably other) emulation by the
+ underlying device model, the host provides the guest with
+ timing infrastructure such as time of day, and system time
+
+config ARCH_CPUIDLE_HALTPOLL
+ def_bool n
+ prompt "Disable host haltpoll when loading haltpoll driver"
+ help
+ If virtualized under KVM, disable host haltpoll.
-config NO_BOOTMEM
- def_bool y
+config PVH
+ bool "Support for running PVH guests"
+ help
+ This option enables the PVH entry point for guest virtual machines
+ as specified in the x86/HVM direct boot ABI.
-config MEMTEST
- bool "Memtest"
- ---help---
- This option adds a kernel parameter 'memtest', which allows memtest
- to be set.
- memtest=0, mean disabled; -- default
- memtest=1, mean do 1 test pattern;
- ...
- memtest=4, mean do 4 test patterns.
- If you are unsure how to answer this question, answer N.
+config PARAVIRT_TIME_ACCOUNTING
+ bool "Paravirtual steal time accounting"
+ depends on PARAVIRT
+ help
+ Select this option to enable fine granularity task steal time
+ accounting. Time spent executing other tasks in parallel with
+ the current vCPU is discounted from the vCPU power. To account for
+ that, there can be a small performance impact.
-config X86_SUMMIT_NUMA
- def_bool y
- depends on X86_32 && NUMA && X86_32_NON_STANDARD
+ If in doubt, say N here.
-config X86_CYCLONE_TIMER
- def_bool y
- depends on X86_32_NON_STANDARD
+config PARAVIRT_CLOCK
+ bool
+
+config JAILHOUSE_GUEST
+ bool "Jailhouse non-root cell support"
+ depends on X86_64 && PCI
+ select X86_PM_TIMER
+ help
+ This option allows to run Linux as guest in a Jailhouse non-root
+ cell. You can leave this option disabled if you only want to start
+ Jailhouse and run Linux afterwards in the root cell.
+
+config ACRN_GUEST
+ bool "ACRN Guest support"
+ depends on X86_64
+ select X86_HV_CALLBACK_VECTOR
+ help
+ This option allows to run Linux as guest in the ACRN hypervisor. ACRN is
+ a flexible, lightweight reference open-source hypervisor, built with
+ real-time and safety-criticality in mind. It is built for embedded
+ IOT with small footprint and real-time features. More details can be
+ found in https://projectacrn.org/.
+
+config INTEL_TDX_GUEST
+ bool "Intel TDX (Trust Domain Extensions) - Guest Support"
+ depends on X86_64 && CPU_SUP_INTEL
+ depends on X86_X2APIC
+ select ARCH_HAS_CC_PLATFORM
+ select X86_MEM_ENCRYPT
+ select X86_MCE
+ help
+ Support running as a guest under Intel TDX. Without this support,
+ the guest kernel can not boot or run under TDX.
+ TDX includes memory encryption and integrity capabilities
+ which protect the confidentiality and integrity of guest
+ memory contents and CPU state. TDX guests are protected from
+ some attacks from the VMM.
+
+endif # HYPERVISOR_GUEST
source "arch/x86/Kconfig.cpu"
config HPET_TIMER
def_bool X86_64
prompt "HPET Timer Support" if X86_32
- ---help---
+ help
Use the IA-PC HPET (High Precision Event Timer) to manage
time in preference to the PIT and RTC, if a HPET is
present.
HPET is the next generation timer replacing legacy 8254s.
The HPET provides a stable time base on SMP
systems, unlike the TSC, but it is more expensive to access,
- as it is off-chip. You can find the HPET spec at
- <http://www.intel.com/hardwaredesign/hpetspec_1.pdf>.
+ as it is off-chip. The interface used is documented
+ in the HPET spec, revision 1.
You can safely choose Y here. However, HPET will only be
activated if the platform and the BIOS support this feature.
@@ -618,175 +920,171 @@ config HPET_TIMER
config HPET_EMULATE_RTC
def_bool y
- depends on HPET_TIMER && (RTC=y || RTC=m || RTC_DRV_CMOS=m || RTC_DRV_CMOS=y)
-
-config APB_TIMER
- def_bool y if MRST
- prompt "Langwell APB Timer Support" if X86_MRST
- help
- APB timer is the replacement for 8254, HPET on X86 MID platforms.
- The APBT provides a stable time base on SMP
- systems, unlike the TSC, but it is more expensive to access,
- as it is off-chip. APB timers are always running regardless of CPU
- C states, they are used as per CPU clockevent device when possible.
+ depends on HPET_TIMER && (RTC_DRV_CMOS=m || RTC_DRV_CMOS=y)
# Mark as expert because too many people got it wrong.
# The code disables itself when not needed.
config DMI
default y
+ select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
bool "Enable DMI scanning" if EXPERT
- ---help---
+ help
Enabled scanning of DMI to identify machine quirks. Say Y
here unless you have verified that your setup is not
affected by entries in the DMI blacklist. Required by PNP
BIOS code.
config GART_IOMMU
- bool "GART IOMMU support" if EXPERT
- default y
+ bool "Old AMD GART IOMMU support"
+ select DMA_OPS
+ select IOMMU_HELPER
select SWIOTLB
depends on X86_64 && PCI && AMD_NB
- ---help---
- Support for full DMA access of devices with 32bit memory access only
- on systems with more than 3GB. This is usually needed for USB,
- sound, many IDE/SATA chipsets and some other devices.
- Provides a driver for the AMD Athlon64/Opteron/Turion/Sempron GART
- based hardware IOMMU and a software bounce buffer based IOMMU used
- on Intel systems and as fallback.
- The code is only active when needed (enough memory and limited
- device) unless CONFIG_IOMMU_DEBUG or iommu=force is specified
- too.
-
-config CALGARY_IOMMU
- bool "IBM Calgary IOMMU support"
- select SWIOTLB
- depends on X86_64 && PCI && EXPERIMENTAL
- ---help---
- Support for hardware IOMMUs in IBM's xSeries x366 and x460
- systems. Needed to run systems with more than 3GB of memory
- properly with 32-bit PCI devices that do not support DAC
- (Double Address Cycle). Calgary also supports bus level
- isolation, where all DMAs pass through the IOMMU. This
- prevents them from going anywhere except their intended
- destination. This catches hard-to-find kernel bugs and
- mis-behaving drivers and devices that do not use the DMA-API
- properly to set up their DMA buffers. The IOMMU can be
- turned off at boot time with the iommu=off parameter.
- Normally the kernel will make the right choice by itself.
- If unsure, say Y.
+ help
+ Provides a driver for older AMD Athlon64/Opteron/Turion/Sempron
+ GART based hardware IOMMUs.
-config CALGARY_IOMMU_ENABLED_BY_DEFAULT
- def_bool y
- prompt "Should Calgary be enabled by default?"
- depends on CALGARY_IOMMU
- ---help---
- Should Calgary be enabled by default? if you choose 'y', Calgary
- will be used (if it exists). If you choose 'n', Calgary will not be
- used even if it exists. If you choose 'n' and would like to use
- Calgary anyway, pass 'iommu=calgary' on the kernel command line.
- If unsure, say Y.
+ The GART supports full DMA access for devices with 32-bit access
+ limitations, on systems with more than 3 GB. This is usually needed
+ for USB, sound, many IDE/SATA chipsets and some other devices.
-config AMD_IOMMU
- bool "AMD IOMMU support"
- select SWIOTLB
- select PCI_MSI
- depends on X86_64 && PCI && ACPI
- ---help---
- With this option you can enable support for AMD IOMMU hardware in
- your system. An IOMMU is a hardware component which provides
- remapping of DMA memory accesses from devices. With an AMD IOMMU you
- can isolate the the DMA memory of different devices and protect the
- system from misbehaving device drivers or hardware.
-
- You can find out if your system has an AMD IOMMU if you look into
- your BIOS for an option to enable it or if you have an IVRS ACPI
- table.
-
-config AMD_IOMMU_STATS
- bool "Export AMD IOMMU statistics to debugfs"
- depends on AMD_IOMMU
- select DEBUG_FS
- ---help---
- This option enables code in the AMD IOMMU driver to collect various
- statistics about whats happening in the driver and exports that
- information to userspace via debugfs.
- If unsure, say N.
+ Newer systems typically have a modern AMD IOMMU, supported via
+ the CONFIG_AMD_IOMMU=y config option.
-# need this always selected by IOMMU for the VIA workaround
-config SWIOTLB
- def_bool y if X86_64
- ---help---
- Support for software bounce buffers used on x86-64 systems
- which don't have a hardware IOMMU (e.g. the current generation
- of Intel's x86-64 CPUs). Using this PCI devices which can only
- access 32-bits of memory can be used on systems with more than
- 3 GB of memory. If unsure, say Y.
+ In normal configurations this driver is only active when needed:
+ there's more than 3 GB of memory and the system contains a
+ 32-bit limited device.
-config IOMMU_HELPER
- def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
+ If unsure, say Y.
-config IOMMU_API
- def_bool (AMD_IOMMU || DMAR)
+config BOOT_VESA_SUPPORT
+ bool
+ help
+ If true, at least one selected framebuffer driver can take advantage
+ of VESA video modes set at an early boot stage via the vga= parameter.
config MAXSMP
bool "Enable Maximum number of SMP Processors and NUMA Nodes"
- depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
+ depends on X86_64 && SMP && DEBUG_KERNEL
select CPUMASK_OFFSTACK
- ---help---
+ help
Enable maximum number of CPUS and NUMA Nodes for this architecture.
If unsure, say N.
+#
+# The maximum number of CPUs supported:
+#
+# The main config value is NR_CPUS, which defaults to NR_CPUS_DEFAULT,
+# and which can be configured interactively in the
+# [NR_CPUS_RANGE_BEGIN ... NR_CPUS_RANGE_END] range.
+#
+# The ranges are different on 32-bit and 64-bit kernels, depending on
+# hardware capabilities and scalability features of the kernel.
+#
+# ( If MAXSMP is enabled we just use the highest possible value and disable
+# interactive configuration. )
+#
+
+config NR_CPUS_RANGE_BEGIN
+ int
+ default NR_CPUS_RANGE_END if MAXSMP
+ default 1 if !SMP
+ default 2
+
+config NR_CPUS_RANGE_END
+ int
+ depends on X86_32
+ default 64 if SMP && X86_BIGSMP
+ default 8 if SMP && !X86_BIGSMP
+ default 1 if !SMP
+
+config NR_CPUS_RANGE_END
+ int
+ depends on X86_64
+ default 8192 if SMP && CPUMASK_OFFSTACK
+ default 512 if SMP && !CPUMASK_OFFSTACK
+ default 1 if !SMP
+
+config NR_CPUS_DEFAULT
+ int
+ depends on X86_32
+ default 32 if X86_BIGSMP
+ default 8 if SMP
+ default 1 if !SMP
+
+config NR_CPUS_DEFAULT
+ int
+ depends on X86_64
+ default 8192 if MAXSMP
+ default 64 if SMP
+ default 1 if !SMP
+
config NR_CPUS
int "Maximum number of CPUs" if SMP && !MAXSMP
- range 2 8 if SMP && X86_32 && !X86_BIGSMP
- range 2 512 if SMP && !MAXSMP
- default "1" if !SMP
- default "4096" if MAXSMP
- default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)
- default "8" if SMP
- ---help---
+ range NR_CPUS_RANGE_BEGIN NR_CPUS_RANGE_END
+ default NR_CPUS_DEFAULT
+ help
This allows you to specify the maximum number of CPUs which this
- kernel will support. The maximum supported value is 512 and the
+ kernel will support. If CPUMASK_OFFSTACK is enabled, the maximum
+ supported value is 8192, otherwise the maximum value is 512. The
minimum value which makes sense is 2.
- This is purely to save memory - each supported CPU adds
- approximately eight kilobytes to the kernel image.
+ This is purely to save memory: each supported CPU adds about 8KB
+ to the kernel image.
+
+config SCHED_CLUSTER
+ bool "Cluster scheduler support"
+ depends on SMP
+ default y
+ help
+ Cluster scheduler support improves the CPU scheduler's decision
+ making when dealing with machines that have clusters of CPUs.
+ Cluster usually means a couple of CPUs which are placed closely
+ by sharing mid-level caches, last-level cache tags or internal
+ busses.
config SCHED_SMT
- bool "SMT (Hyperthreading) scheduler support"
- depends on X86_HT
- ---help---
- SMT scheduler support improves the CPU scheduler's decision making
- when dealing with Intel Pentium 4 chips with HyperThreading at a
- cost of slightly increased overhead in some places. If unsure say
- N here.
+ def_bool y if SMP
config SCHED_MC
def_bool y
prompt "Multi-core scheduler support"
- depends on X86_HT
- ---help---
+ depends on SMP
+ help
Multi-core scheduler support improves the CPU scheduler's decision
making when dealing with multi-core CPU chips at a cost of slightly
increased overhead in some places. If unsure say N here.
-config IRQ_TIME_ACCOUNTING
- bool "Fine granularity task level IRQ time accounting"
- default n
- ---help---
- Select this option to enable fine granularity task irq time
- accounting. This is done by reading a timestamp on each
- transitions between softirq and hardirq state, so there can be a
- small performance impact.
+config SCHED_MC_PRIO
+ bool "CPU core priorities scheduler support"
+ depends on SCHED_MC && CPU_SUP_INTEL
+ select X86_INTEL_PSTATE
+ select CPU_FREQ
+ default y
+ help
+ Intel Turbo Boost Max Technology 3.0 enabled CPUs have a
+ core ordering determined at manufacturing time, which allows
+ certain cores to reach higher turbo frequencies (when running
+ single threaded workloads) than others.
- If in doubt, say N here.
+ Enabling this kernel feature teaches the scheduler about
+ the TBM3 (aka ITMT) priority order of the CPU cores and adjusts the
+ scheduler's CPU selection logic accordingly, so that higher
+ overall system performance can be achieved.
+
+ This feature will have no effect on CPUs without this feature.
-source "kernel/Kconfig.preempt"
+ If unsure say Y here.
+
+config UP_LATE_INIT
+ def_bool y
+ depends on !SMP && X86_LOCAL_APIC
config X86_UP_APIC
- bool "Local APIC support on uniprocessors"
+ bool "Local APIC support on uniprocessors" if !PCI_MSI
+ default PCI_MSI
depends on X86_32 && !SMP && !X86_32_NON_STANDARD
- ---help---
+ help
A local APIC (Advanced Programmable Interrupt Controller) is an
integrated interrupt controller in the CPU. If you have a single-CPU
system which has a processor with a local APIC, you can say Y here to
@@ -799,7 +1097,7 @@ config X86_UP_APIC
config X86_UP_IOAPIC
bool "IO-APIC support on uniprocessors"
depends on X86_UP_APIC
- ---help---
+ help
An IO-APIC (I/O Advanced Programmable Interrupt Controller) is an
SMP-capable replacement for PC-style interrupt controllers. Most
SMP systems and many recent uniprocessor systems have one.
@@ -810,20 +1108,17 @@ config X86_UP_IOAPIC
config X86_LOCAL_APIC
def_bool y
- depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC
+ depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_APIC || PCI_MSI
+ select IRQ_DOMAIN_HIERARCHY
config X86_IO_APIC
def_bool y
- depends on X86_64 || SMP || X86_32_NON_STANDARD || X86_UP_IOAPIC
-
-config X86_VISWS_APIC
- def_bool y
- depends on X86_32 && X86_VISWS
+ depends on X86_LOCAL_APIC || X86_UP_IOAPIC
config X86_REROUTE_FOR_BROKEN_BOOT_IRQS
bool "Reroute for broken boot IRQs"
depends on X86_IO_APIC
- ---help---
+ help
This option enables a workaround that fixes a source of
spurious interrupts. This is recommended when threaded
interrupt handling is used on systems where the generation of
@@ -845,34 +1140,44 @@ config X86_REROUTE_FOR_BROKEN_BOOT_IRQS
config X86_MCE
bool "Machine Check / overheating reporting"
- ---help---
+ select GENERIC_ALLOCATOR
+ default y
+ help
Machine Check support allows the processor to notify the
kernel if it detects a problem (e.g. overheating, data corruption).
The action the kernel takes depends on the severity of the problem,
ranging from warning messages to halting the machine.
+config X86_MCELOG_LEGACY
+ bool "Support for deprecated /dev/mcelog character device"
+ depends on X86_MCE
+ help
+ Enable support for /dev/mcelog which is needed by the old mcelog
+ userspace logging daemon. Consider switching to the new generation
+ rasdaemon solution.
+
config X86_MCE_INTEL
def_bool y
prompt "Intel MCE features"
depends on X86_MCE && X86_LOCAL_APIC
- ---help---
- Additional support for intel specific MCE features such as
- the thermal monitor.
+ help
+ Additional support for intel specific MCE features such as
+ the thermal monitor.
config X86_MCE_AMD
def_bool y
prompt "AMD MCE features"
- depends on X86_MCE && X86_LOCAL_APIC
- ---help---
- Additional support for AMD specific MCE features such as
- the DRAM Error Threshold.
+ depends on X86_MCE && X86_LOCAL_APIC && AMD_NB
+ help
+ Additional support for AMD specific MCE features such as
+ the DRAM Error Threshold.
config X86_ANCIENT_MCE
bool "Support for old Pentium 5 / WinChip machine checks"
depends on X86_32 && X86_MCE
- ---help---
+ help
Include support for machine check handling on old Pentium 5 or WinChip
- systems. These typically need to be enabled explicitely on the command
+ systems. These typically need to be enabled explicitly on the command
line.
config X86_MCE_THRESHOLD
@@ -880,31 +1185,104 @@ config X86_MCE_THRESHOLD
def_bool y
config X86_MCE_INJECT
- depends on X86_MCE
+ depends on X86_MCE && X86_LOCAL_APIC && DEBUG_FS
tristate "Machine check injector support"
- ---help---
+ help
Provide support for injecting machine checks for testing purposes.
If you don't know what a machine check is and you don't do kernel
QA it is safe to say n.
-config X86_THERMAL_VECTOR
- def_bool y
- depends on X86_MCE_INTEL
+source "arch/x86/events/Kconfig"
+
+config X86_LEGACY_VM86
+ bool "Legacy VM86 support"
+ depends on X86_32
+ help
+ This option allows user programs to put the CPU into V8086
+ mode, which is an 80286-era approximation of 16-bit real mode.
+
+ Some very old versions of X and/or vbetool require this option
+ for user mode setting. Similarly, DOSEMU will use it if
+ available to accelerate real mode DOS programs. However, any
+ recent version of DOSEMU, X, or vbetool should be fully
+ functional even without kernel VM86 support, as they will all
+ fall back to software emulation. Nevertheless, if you are using
+ a 16-bit DOS program where 16-bit performance matters, vm86
+ mode might be faster than emulation and you might want to
+ enable this option.
+
+ Note that any app that works on a 64-bit kernel is unlikely to
+ need this option, as 64-bit kernels don't, and can't, support
+ V8086 mode. This option is also unrelated to 16-bit protected
+ mode and is not needed to run most 16-bit programs under Wine.
+
+ Enabling this option increases the complexity of the kernel
+ and slows down exception handling a tiny bit.
+
+ If unsure, say N here.
config VM86
- bool "Enable VM86 support" if EXPERT
+ bool
+ default X86_LEGACY_VM86
+
+config X86_16BIT
+ bool "Enable support for 16-bit segments" if EXPERT
default y
- depends on X86_32
- ---help---
- This option is required by programs like DOSEMU to run 16-bit legacy
- code on X86 processors. It also may be needed by software like
- XFree86 to initialize some video cards via BIOS. Disabling this
- option saves about 6k.
+ depends on MODIFY_LDT_SYSCALL
+ help
+ This option is required by programs like Wine to run 16-bit
+ protected mode legacy code on x86 processors. Disabling
+ this option saves about 300 bytes on i386, or around 6K text
+ plus 16K runtime memory on x86-64,
+
+config X86_ESPFIX32
+ def_bool y
+ depends on X86_16BIT && X86_32
+
+config X86_ESPFIX64
+ def_bool y
+ depends on X86_16BIT && X86_64
+
+config X86_VSYSCALL_EMULATION
+ bool "Enable vsyscall emulation" if EXPERT
+ default y
+ depends on X86_64
+ help
+ This enables emulation of the legacy vsyscall page. Disabling
+ it is roughly equivalent to booting with vsyscall=none, except
+ that it will also disable the helpful warning if a program
+ tries to use a vsyscall. With this option set to N, offending
+ programs will just segfault, citing addresses of the form
+ 0xffffffffff600?00.
+
+ This option is required by many programs built before 2013, and
+ care should be used even with newer programs if set to N.
+
+ Disabling this option saves about 7K of kernel size and
+ possibly 4K of additional runtime pagetable memory.
+
+config X86_IOPL_IOPERM
+ bool "IOPERM and IOPL Emulation"
+ default y
+ help
+ This enables the ioperm() and iopl() syscalls which are necessary
+ for legacy applications.
+
+ Legacy IOPL support is an overbroad mechanism which allows user
+ space aside of accessing all 65536 I/O ports also to disable
+ interrupts. To gain this access the caller needs CAP_SYS_RAWIO
+ capabilities and permission from potentially active security
+ modules.
+
+ The emulation restricts the functionality of the syscall to
+ only allowing the full range I/O port access, but prevents the
+ ability to disable interrupts from user space which would be
+ granted if the hardware IOPL mechanism would be used.
config TOSHIBA
tristate "Toshiba Laptop support"
depends on X86_32
- ---help---
+ help
This adds a driver to safely access the System Management Mode of
the CPU on Toshiba portables with a genuine Toshiba BIOS. It does
not work on models with a Phoenix BIOS. The System Management Mode
@@ -917,30 +1295,10 @@ config TOSHIBA
Say Y if you intend to run this kernel on a Toshiba portable.
Say N otherwise.
-config I8K
- tristate "Dell laptop support"
- ---help---
- This adds a driver to safely access the System Management Mode
- of the CPU on the Dell Inspiron 8000. The System Management Mode
- is used to read cpu temperature and cooling fan status and to
- control the fans on the I8K portables.
-
- This driver has been tested only on the Inspiron 8000 but it may
- also work with other Dell laptops. You can force loading on other
- models by passing the parameter `force=1' to the module. Use at
- your own risk.
-
- For information on utilities to make use of this driver see the
- I8K Linux utilities web site at:
- <http://people.debian.org/~dz/i8k/>
-
- Say Y if you intend to run this kernel on a Dell Inspiron 8000.
- Say N otherwise.
-
config X86_REBOOTFIXUPS
bool "Enable X86 board specific fixups for reboot"
depends on X86_32
- ---help---
+ help
This enables chipset and/or board specific fixups to be done
in order to get reboot to work correctly. This is only needed on
some combinations of hardware and BIOS. The symptom, for which
@@ -955,51 +1313,59 @@ config X86_REBOOTFIXUPS
Say N otherwise.
config MICROCODE
- tristate "/dev/cpu/microcode - microcode support"
- select FW_LOADER
- ---help---
+ bool "CPU microcode loading support"
+ default y
+ depends on CPU_SUP_AMD || CPU_SUP_INTEL
+ help
If you say Y here, you will be able to update the microcode on
- certain Intel and AMD processors. The Intel support is for the
- IA32 family, e.g. Pentium Pro, Pentium II, Pentium III,
- Pentium 4, Xeon etc. The AMD support is for family 0x10 and
- 0x11 processors, e.g. Opteron, Phenom and Turion 64 Ultra.
- You will obviously need the actual microcode binary data itself
- which is not shipped with the Linux kernel.
+ Intel and AMD processors. The Intel support is for the IA32 family,
+ e.g. Pentium Pro, Pentium II, Pentium III, Pentium 4, Xeon etc. The
+ AMD support is for families 0x10 and later. You will obviously need
+ the actual microcode binary data itself which is not shipped with
+ the Linux kernel.
- This option selects the general module only, you need to select
- at least one vendor specific module as well.
+ The preferred method to load microcode from a detached initrd is described
+ in Documentation/arch/x86/microcode.rst. For that you need to enable
+ CONFIG_BLK_DEV_INITRD in order for the loader to be able to scan the
+ initrd for microcode blobs.
- To compile this driver as a module, choose M here: the
- module will be called microcode.
+ In addition, you can build the microcode into the kernel. For that you
+ need to add the vendor-supplied microcode to the CONFIG_EXTRA_FIRMWARE
+ config option.
config MICROCODE_INTEL
- bool "Intel microcode patch loading support"
- depends on MICROCODE
+ bool "Intel microcode loading support"
+ depends on CPU_SUP_INTEL && MICROCODE
default MICROCODE
- select FW_LOADER
- ---help---
+ help
This options enables microcode patch loading support for Intel
processors.
- For latest news and information on obtaining all the required
- Intel ingredients for this driver, check:
- <http://www.urbanmyth.org/microcode/>.
+ For the current Intel microcode data package go to
+ <https://downloadcenter.intel.com> and search for
+ 'Linux Processor Microcode Data File'.
config MICROCODE_AMD
- bool "AMD microcode patch loading support"
- depends on MICROCODE
- select FW_LOADER
- ---help---
+ bool "AMD microcode loading support"
+ depends on CPU_SUP_AMD && MICROCODE
+ help
If you select this option, microcode patch loading support for AMD
processors will be enabled.
-config MICROCODE_OLD_INTERFACE
- def_bool y
+config MICROCODE_LATE_LOADING
+ bool "Late microcode loading (DANGEROUS)"
+ default n
depends on MICROCODE
+ help
+ Loading microcode late, when the system is up and executing instructions
+ is a tricky business and should be avoided if possible. Just the sequence
+ of synchronizing all cores and SMT threads is one fragile dance which does
+ not guarantee that cores might not softlock after the loading. Therefore,
+ use this at your own risk. Late loading taints the kernel too.
config X86_MSR
tristate "/dev/cpu/*/msr - Model-specific register support"
- ---help---
+ help
This device gives privileged processes access to the x86
Model-Specific Registers (MSRs). It is a character device with
major 202 and minors 0 to 31 for /dev/cpu/0/msr to /dev/cpu/31/msr.
@@ -1008,7 +1374,7 @@ config X86_MSR
config X86_CPUID
tristate "/dev/cpu/*/cpuid - CPU information support"
- ---help---
+ help
This device gives processes access to the x86 CPUID instruction to
be executed on a specific processor. It is a character device
with major 203 and minors 0 to 31 for /dev/cpu/0/cpuid to
@@ -1016,14 +1382,12 @@ config X86_CPUID
choice
prompt "High Memory Support"
- default HIGHMEM64G if X86_NUMAQ
default HIGHMEM4G
depends on X86_32
config NOHIGHMEM
bool "off"
- depends on !X86_NUMAQ
- ---help---
+ help
Linux can use up to 64 Gigabytes of physical memory on x86 systems.
However, the address space of 32-bit x86 processors is only 4
Gigabytes large. That means that, if you have a large amount of
@@ -1059,27 +1423,25 @@ config NOHIGHMEM
config HIGHMEM4G
bool "4GB"
- depends on !X86_NUMAQ
- ---help---
+ help
Select this if you have a 32-bit processor and between 1 and 4
gigabytes of physical RAM.
config HIGHMEM64G
bool "64GB"
- depends on !M386 && !M486
+ depends on !M486SX && !M486 && !M586 && !M586TSC && !M586MMX && !MGEODE_LX && !MGEODEGX1 && !MCYRIXIII && !MELAN && !MWINCHIPC6 && !MWINCHIP3D && !MK6
select X86_PAE
- ---help---
+ help
Select this if you have a 32-bit processor and more than 4
gigabytes of physical RAM.
endchoice
choice
- depends on EXPERIMENTAL
prompt "Memory split" if EXPERT
default VMSPLIT_3G
depends on X86_32
- ---help---
+ help
Select the desired split between kernel and user memory.
If the address range available to the kernel is less than the
@@ -1125,35 +1487,92 @@ config HIGHMEM
config X86_PAE
bool "PAE (Physical Address Extension) Support"
depends on X86_32 && !HIGHMEM4G
- ---help---
+ select PHYS_ADDR_T_64BIT
+ select SWIOTLB
+ help
PAE is required for NX support, and furthermore enables
larger swapspace support for non-overcommit purposes. It
has the cost of more pagetable lookup overhead, and also
consumes more pagetable space per process.
-config ARCH_PHYS_ADDR_T_64BIT
- def_bool X86_64 || X86_PAE
+config X86_5LEVEL
+ bool "Enable 5-level page tables support"
+ default y
+ select DYNAMIC_MEMORY_LAYOUT
+ select SPARSEMEM_VMEMMAP
+ depends on X86_64
+ help
+ 5-level paging enables access to larger address space:
+ up to 128 PiB of virtual address space and 4 PiB of
+ physical address space.
+
+ It will be supported by future Intel CPUs.
-config ARCH_DMA_ADDR_T_64BIT
- def_bool X86_64 || HIGHMEM64G
+ A kernel with the option enabled can be booted on machines that
+ support 4- or 5-level paging.
-config DIRECT_GBPAGES
- bool "Enable 1GB pages for kernel pagetables" if EXPERT
- default y
+ See Documentation/arch/x86/x86_64/5level-paging.rst for more
+ information.
+
+ Say N if unsure.
+
+config X86_DIRECT_GBPAGES
+ def_bool y
depends on X86_64
- ---help---
- Allow the kernel linear mapping to use 1GB pages on CPUs that
- support it. This can improve the kernel's performance a tiny bit by
- reducing TLB pressure. If in doubt, say "Y".
+ help
+ Certain kernel features effectively disable kernel
+ linear 1 GB mappings (even if the CPU otherwise
+ supports them), so don't confuse the user by printing
+ that we have them enabled.
+
+config X86_CPA_STATISTICS
+ bool "Enable statistic for Change Page Attribute"
+ depends on DEBUG_FS
+ help
+ Expose statistics about the Change Page Attribute mechanism, which
+ helps to determine the effectiveness of preserving large and huge
+ page mappings when mapping protections are changed.
+
+config X86_MEM_ENCRYPT
+ select ARCH_HAS_FORCE_DMA_UNENCRYPTED
+ select DYNAMIC_PHYSICAL_MASK
+ def_bool n
+
+config AMD_MEM_ENCRYPT
+ bool "AMD Secure Memory Encryption (SME) support"
+ depends on X86_64 && CPU_SUP_AMD
+ select DMA_COHERENT_POOL
+ select ARCH_USE_MEMREMAP_PROT
+ select INSTRUCTION_DECODER
+ select ARCH_HAS_CC_PLATFORM
+ select X86_MEM_ENCRYPT
+ help
+ Say yes to enable support for the encryption of system memory.
+ This requires an AMD processor that supports Secure Memory
+ Encryption (SME).
+
+config AMD_MEM_ENCRYPT_ACTIVE_BY_DEFAULT
+ bool "Activate AMD Secure Memory Encryption (SME) by default"
+ depends on AMD_MEM_ENCRYPT
+ help
+ Say yes to have system memory encrypted by default if running on
+ an AMD processor that supports Secure Memory Encryption (SME).
+
+ If set to Y, then the encryption of system memory can be
+ deactivated with the mem_encrypt=off command line option.
+
+ If set to N, then the encryption of system memory can be
+ activated with the mem_encrypt=on command line option.
# Common NUMA Features
config NUMA
- bool "Numa Memory Allocation and Scheduler Support"
+ bool "NUMA Memory Allocation and Scheduler Support"
depends on SMP
- depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
- default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
- ---help---
- Enable NUMA (Non Uniform Memory Access) support.
+ depends on X86_64 || (X86_32 && HIGHMEM64G && X86_BIGSMP)
+ default y if X86_BIGSMP
+ select USE_PERCPU_NUMA_NODE_ID
+ help
+ Enable NUMA (Non-Uniform Memory Access) support.
The kernel will try to allocate memory used by a CPU on the
local memory controller of the CPU and add some more
@@ -1162,20 +1581,16 @@ config NUMA
For 64-bit this is recommended if the system is Intel Core i7
(or later), AMD Opteron, or EM64T NUMA.
- For 32-bit this is only needed on (rare) 32-bit-only platforms
- that support NUMA topologies, such as NUMAQ / Summit, or if you
- boot a 32-bit kernel on a 64-bit NUMA platform.
+ For 32-bit this is only needed if you boot a 32-bit
+ kernel on a 64-bit NUMA platform.
Otherwise, you should say N.
-comment "NUMA (Summit) requires SMP, 64GB highmem support, ACPI"
- depends on X86_32 && X86_SUMMIT && (!HIGHMEM64G || !ACPI)
-
config AMD_NUMA
def_bool y
prompt "Old style AMD Opteron NUMA detection"
depends on X86_64 && NUMA && PCI
- ---help---
+ help
Enable AMD NUMA node topology detection. You should say Y here if
you have a multi processor AMD system. This uses an old method to
read the NUMA configuration directly from the builtin Northbridge
@@ -1187,22 +1602,13 @@ config X86_64_ACPI_NUMA
prompt "ACPI NUMA detection"
depends on X86_64 && NUMA && ACPI && PCI
select ACPI_NUMA
- ---help---
+ help
Enable ACPI SRAT based node topology detection.
-# Some NUMA nodes have memory ranges that span
-# other nodes. Even though a pfn is valid and
-# between a node's start and end pfns, it may not
-# reside on that node. See memmap_init_zone()
-# for details.
-config NODES_SPAN_OTHER_NODES
- def_bool y
- depends on X86_64_ACPI_NUMA
-
config NUMA_EMU
bool "NUMA emulation"
- depends on X86_64 && NUMA
- ---help---
+ depends on NUMA
+ help
Enable NUMA emulation. A flat machine will be split
into virtual nodes when booted with "numa=fake=N", where N is the
number of nodes. This is only useful for debugging.
@@ -1212,74 +1618,68 @@ config NODES_SHIFT
range 1 10
default "10" if MAXSMP
default "6" if X86_64
- default "4" if X86_NUMAQ
default "3"
- depends on NEED_MULTIPLE_NODES
- ---help---
+ depends on NUMA
+ help
Specify the maximum number of NUMA Nodes available on the target
system. Increases memory reserved to accommodate various tables.
-config HAVE_ARCH_BOOTMEM
- def_bool y
- depends on X86_32 && NUMA
-
-config ARCH_HAVE_MEMORY_PRESENT
- def_bool y
- depends on X86_32 && DISCONTIGMEM
-
-config NEED_NODE_MEMMAP_SIZE
- def_bool y
- depends on X86_32 && (DISCONTIGMEM || SPARSEMEM)
-
-config HAVE_ARCH_ALLOC_REMAP
- def_bool y
- depends on X86_32 && NUMA
-
config ARCH_FLATMEM_ENABLE
def_bool y
- depends on X86_32 && ARCH_SELECT_MEMORY_MODEL && !NUMA
-
-config ARCH_DISCONTIGMEM_ENABLE
- def_bool y
- depends on NUMA && X86_32
-
-config ARCH_DISCONTIGMEM_DEFAULT
- def_bool y
- depends on NUMA && X86_32
-
-config ARCH_PROC_KCORE_TEXT
- def_bool y
- depends on X86_64 && PROC_KCORE
-
-config ARCH_SPARSEMEM_DEFAULT
- def_bool y
- depends on X86_64
+ depends on X86_32 && !NUMA
config ARCH_SPARSEMEM_ENABLE
def_bool y
- depends on X86_64 || NUMA || (EXPERIMENTAL && X86_32) || X86_32_NON_STANDARD
+ depends on X86_64 || NUMA || X86_32 || X86_32_NON_STANDARD
select SPARSEMEM_STATIC if X86_32
select SPARSEMEM_VMEMMAP_ENABLE if X86_64
+config ARCH_SPARSEMEM_DEFAULT
+ def_bool X86_64 || (NUMA && X86_32)
+
config ARCH_SELECT_MEMORY_MODEL
def_bool y
- depends on ARCH_SPARSEMEM_ENABLE
+ depends on ARCH_SPARSEMEM_ENABLE && ARCH_FLATMEM_ENABLE
config ARCH_MEMORY_PROBE
- def_bool X86_64
+ bool "Enable sysfs memory/probe interface"
depends on MEMORY_HOTPLUG
+ help
+ This option enables a sysfs memory/probe interface for testing.
+ See Documentation/admin-guide/mm/memory-hotplug.rst for more information.
+ If you are unsure how to answer this question, answer N.
+
+config ARCH_PROC_KCORE_TEXT
+ def_bool y
+ depends on X86_64 && PROC_KCORE
config ILLEGAL_POINTER_VALUE
- hex
- default 0 if X86_32
- default 0xdead000000000000 if X86_64
+ hex
+ default 0 if X86_32
+ default 0xdead000000000000 if X86_64
+
+config X86_PMEM_LEGACY_DEVICE
+ bool
+
+config X86_PMEM_LEGACY
+ tristate "Support non-standard NVDIMMs and ADR protected memory"
+ depends on PHYS_ADDR_T_64BIT
+ depends on BLK_DEV
+ select X86_PMEM_LEGACY_DEVICE
+ select NUMA_KEEP_MEMINFO if NUMA
+ select LIBNVDIMM
+ help
+ Treat memory marked using the non-standard e820 type of 12 as used
+ by the Intel Sandy Bridge-EP reference BIOS as protected memory.
+ The kernel will offer these regions to the 'pmem' driver so
+ they can be used for persistent storage.
-source "mm/Kconfig"
+ Say Y if unsure.
config HIGHPTE
bool "Allocate 3rd-level pagetables from highmem"
depends on HIGHMEM
- ---help---
+ help
The VM uses one page table entry for each page of physical memory.
For systems with a lot of RAM, this can be wasteful of precious
low memory. Setting this option will put user-space page table
@@ -1287,7 +1687,7 @@ config HIGHPTE
config X86_CHECK_BIOS_CORRUPTION
bool "Check for low memory corruption"
- ---help---
+ help
Periodically check for memory corruption in low memory, which
is suspected to be caused by BIOS. Even when enabled in the
configuration, it is disabled at runtime. Enable it by
@@ -1295,7 +1695,7 @@ config X86_CHECK_BIOS_CORRUPTION
line. By default it scans the low 64k of memory every 60
seconds; see the memory_corruption_check_size and
memory_corruption_check_period parameters in
- Documentation/kernel-parameters.txt to adjust this.
+ Documentation/admin-guide/kernel-parameters.rst to adjust this.
When enabled with the default parameters, this option has
almost no overhead, as it reserves a relatively small amount
@@ -1311,43 +1711,15 @@ config X86_BOOTPARAM_MEMORY_CORRUPTION_CHECK
bool "Set the default setting of memory_corruption_check"
depends on X86_CHECK_BIOS_CORRUPTION
default y
- ---help---
+ help
Set whether the default state of memory_corruption_check is
on or off.
-config X86_RESERVE_LOW
- int "Amount of low memory, in kilobytes, to reserve for the BIOS"
- default 64
- range 4 640
- ---help---
- Specify the amount of low memory to reserve for the BIOS.
-
- The first page contains BIOS data structures that the kernel
- must not use, so that page must always be reserved.
-
- By default we reserve the first 64K of physical RAM, as a
- number of BIOSes are known to corrupt that memory range
- during events such as suspend/resume or monitor cable
- insertion, so it must not be used by the kernel.
-
- You can set this to 4 if you are absolutely sure that you
- trust the BIOS to get all its memory reservations and usages
- right. If you know your BIOS have problems beyond the
- default 64K area, you can set this to 640 to avoid using the
- entire low memory range.
-
- If you have doubts about the BIOS (e.g. suspend/resume does
- not work or there's kernel crashes after certain hardware
- hotplug events) then you might want to enable
- X86_CHECK_BIOS_CORRUPTION=y to allow the kernel to check
- typical corruption patterns.
-
- Leave this to the default value of 64 if you are unsure.
-
config MATH_EMULATION
bool
- prompt "Math emulation" if X86_32
- ---help---
+ depends on MODIFY_LDT_SYSCALL
+ prompt "Math emulation" if X86_32 && (M486SX || MELAN)
+ help
Linux can emulate a math coprocessor (used for floating point
operations) if you don't have one. 486DX and Pentium processors have
a math coprocessor built in, 486SX and 386 do not, unless you added
@@ -1373,7 +1745,7 @@ config MATH_EMULATION
config MTRR
def_bool y
prompt "MTRR (Memory Type Range Register) support" if EXPERT
- ---help---
+ help
On Intel P6 family processors (Pentium Pro, Pentium II and later)
the Memory Type Range Registers (MTRRs) may be used to control
processor access to memory ranges. This is most useful if you have
@@ -1403,13 +1775,13 @@ config MTRR
You can safely say Y even if your machine doesn't have MTRRs, you'll
just add about 9 KB to your kernel.
- See <file:Documentation/x86/mtrr.txt> for more information.
+ See <file:Documentation/arch/x86/mtrr.rst> for more information.
config MTRR_SANITIZER
def_bool y
prompt "MTRR cleanup support"
depends on MTRR
- ---help---
+ help
Convert MTRR layout from continuous to discrete, so X drivers can
add writeback entries.
@@ -1424,7 +1796,7 @@ config MTRR_SANITIZER_ENABLE_DEFAULT
range 0 1
default "0"
depends on MTRR_SANITIZER
- ---help---
+ help
Enable mtrr cleanup default value
config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT
@@ -1432,7 +1804,7 @@ config MTRR_SANITIZER_SPARE_REG_NR_DEFAULT
range 0 7
default "1"
depends on MTRR_SANITIZER
- ---help---
+ help
mtrr cleanup spare entries default, it can be changed via
mtrr_spare_reg_nr=N on the kernel command line.
@@ -1440,7 +1812,7 @@ config X86_PAT
def_bool y
prompt "x86 PAT support" if EXPERT
depends on MTRR
- ---help---
+ help
Use PAT attributes to setup page level cache control.
PATs are the modern equivalents of MTRRs and are much more
@@ -1455,10 +1827,138 @@ config ARCH_USES_PG_UNCACHED
def_bool y
depends on X86_PAT
+config X86_UMIP
+ def_bool y
+ prompt "User Mode Instruction Prevention" if EXPERT
+ help
+ User Mode Instruction Prevention (UMIP) is a security feature in
+ some x86 processors. If enabled, a general protection fault is
+ issued if the SGDT, SLDT, SIDT, SMSW or STR instructions are
+ executed in user mode. These instructions unnecessarily expose
+ information about the hardware state.
+
+ The vast majority of applications do not use these instructions.
+ For the very few that do, software emulation is provided in
+ specific cases in protected and virtual-8086 modes. Emulated
+ results are dummy.
+
+config CC_HAS_IBT
+ # GCC >= 9 and binutils >= 2.29
+ # Retpoline check to work around https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93654
+ # Clang/LLVM >= 14
+ # https://github.com/llvm/llvm-project/commit/e0b89df2e0f0130881bf6c39bf31d7f6aac00e0f
+ # https://github.com/llvm/llvm-project/commit/dfcf69770bc522b9e411c66454934a37c1f35332
+ def_bool ((CC_IS_GCC && $(cc-option, -fcf-protection=branch -mindirect-branch-register)) || \
+ (CC_IS_CLANG && CLANG_VERSION >= 140000)) && \
+ $(as-instr,endbr64)
+
+config X86_KERNEL_IBT
+ prompt "Indirect Branch Tracking"
+ def_bool y
+ depends on X86_64 && CC_HAS_IBT && HAVE_OBJTOOL
+ # https://github.com/llvm/llvm-project/commit/9d7001eba9c4cb311e03cd8cdc231f9e579f2d0f
+ depends on !LD_IS_LLD || LLD_VERSION >= 140000
+ select OBJTOOL
+ help
+ Build the kernel with support for Indirect Branch Tracking, a
+ hardware support course-grain forward-edge Control Flow Integrity
+ protection. It enforces that all indirect calls must land on
+ an ENDBR instruction, as such, the compiler will instrument the
+ code with them to make this happen.
+
+ In addition to building the kernel with IBT, seal all functions that
+ are not indirect call targets, avoiding them ever becoming one.
+
+ This requires LTO like objtool runs and will slow down the build. It
+ does significantly reduce the number of ENDBR instructions in the
+ kernel image.
+
+config X86_INTEL_MEMORY_PROTECTION_KEYS
+ prompt "Memory Protection Keys"
+ def_bool y
+ # Note: only available in 64-bit mode
+ depends on X86_64 && (CPU_SUP_INTEL || CPU_SUP_AMD)
+ select ARCH_USES_HIGH_VMA_FLAGS
+ select ARCH_HAS_PKEYS
+ help
+ Memory Protection Keys provides a mechanism for enforcing
+ page-based protections, but without requiring modification of the
+ page tables when an application changes protection domains.
+
+ For details, see Documentation/core-api/protection-keys.rst
+
+ If unsure, say y.
+
+choice
+ prompt "TSX enable mode"
+ depends on CPU_SUP_INTEL
+ default X86_INTEL_TSX_MODE_OFF
+ help
+ Intel's TSX (Transactional Synchronization Extensions) feature
+ allows to optimize locking protocols through lock elision which
+ can lead to a noticeable performance boost.
+
+ On the other hand it has been shown that TSX can be exploited
+ to form side channel attacks (e.g. TAA) and chances are there
+ will be more of those attacks discovered in the future.
+
+ Therefore TSX is not enabled by default (aka tsx=off). An admin
+ might override this decision by tsx=on the command line parameter.
+ Even with TSX enabled, the kernel will attempt to enable the best
+ possible TAA mitigation setting depending on the microcode available
+ for the particular machine.
+
+ This option allows to set the default tsx mode between tsx=on, =off
+ and =auto. See Documentation/admin-guide/kernel-parameters.txt for more
+ details.
+
+ Say off if not sure, auto if TSX is in use but it should be used on safe
+ platforms or on if TSX is in use and the security aspect of tsx is not
+ relevant.
+
+config X86_INTEL_TSX_MODE_OFF
+ bool "off"
+ help
+ TSX is disabled if possible - equals to tsx=off command line parameter.
+
+config X86_INTEL_TSX_MODE_ON
+ bool "on"
+ help
+ TSX is always enabled on TSX capable HW - equals the tsx=on command
+ line parameter.
+
+config X86_INTEL_TSX_MODE_AUTO
+ bool "auto"
+ help
+ TSX is enabled on TSX capable HW that is believed to be safe against
+ side channel attacks- equals the tsx=auto command line parameter.
+endchoice
+
+config X86_SGX
+ bool "Software Guard eXtensions (SGX)"
+ depends on X86_64 && CPU_SUP_INTEL && X86_X2APIC
+ depends on CRYPTO=y
+ depends on CRYPTO_SHA256=y
+ select MMU_NOTIFIER
+ select NUMA_KEEP_MEMINFO if NUMA
+ select XARRAY_MULTI
+ help
+ Intel(R) Software Guard eXtensions (SGX) is a set of CPU instructions
+ that can be used by applications to set aside private regions of code
+ and data, referred to as enclaves. An enclave's private memory can
+ only be accessed by code running within the enclave. Accesses from
+ outside the enclave, including other enclaves, are disallowed by
+ hardware.
+
+ If unsure, say N.
+
config EFI
bool "EFI runtime service support"
depends on ACPI
- ---help---
+ select UCS2_STRING
+ select EFI_RUNTIME_WRAPPERS
+ select ARCH_USE_MEMREMAP_PROT
+ help
This enables the kernel to use EFI runtime services that are
available (such as the EFI variable services).
@@ -1469,43 +1969,84 @@ config EFI
resultant kernel should continue to boot on existing non-EFI
platforms.
-config SECCOMP
- def_bool y
- prompt "Enable seccomp to safely compute untrusted bytecode"
- ---help---
- This kernel feature is useful for number crunching applications
- that may need to compute untrusted bytecode during their
- execution. By using pipes or other transports made available to
- the process as file descriptors supporting the read/write
- syscalls, it's possible to isolate those applications in
- their own address space using seccomp. Once seccomp is
- enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
- and the task is only allowed to execute a few safe syscalls
- defined by each seccomp mode.
-
- If unsure, say Y. Only embedded should say N here.
-
-config CC_STACKPROTECTOR
- bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
- ---help---
- This option turns on the -fstack-protector GCC feature. This
- feature puts, at the beginning of functions, a canary value on
- the stack just before the return address, and validates
- the value just before actually returning. Stack based buffer
- overflows (that need to overwrite this return address) now also
- overwrite the canary, which gets detected and the attack is then
- neutralized via a kernel panic.
-
- This feature requires gcc version 4.2 or above, or a distribution
- gcc with the feature backported. Older versions are automatically
- detected and for those versions, this configuration option is
- ignored. (and a warning is printed during bootup)
-
-source kernel/Kconfig.hz
+config EFI_STUB
+ bool "EFI stub support"
+ depends on EFI
+ select RELOCATABLE
+ help
+ This kernel feature allows a bzImage to be loaded directly
+ by EFI firmware without the use of a bootloader.
+
+ See Documentation/admin-guide/efi-stub.rst for more information.
+
+config EFI_HANDOVER_PROTOCOL
+ bool "EFI handover protocol (DEPRECATED)"
+ depends on EFI_STUB
+ default y
+ help
+ Select this in order to include support for the deprecated EFI
+ handover protocol, which defines alternative entry points into the
+ EFI stub. This is a practice that has no basis in the UEFI
+ specification, and requires a priori knowledge on the part of the
+ bootloader about Linux/x86 specific ways of passing the command line
+ and initrd, and where in memory those assets may be loaded.
+
+ If in doubt, say Y. Even though the corresponding support is not
+ present in upstream GRUB or other bootloaders, most distros build
+ GRUB with numerous downstream patches applied, and may rely on the
+ handover protocol as as result.
+
+config EFI_MIXED
+ bool "EFI mixed-mode support"
+ depends on EFI_STUB && X86_64
+ help
+ Enabling this feature allows a 64-bit kernel to be booted
+ on a 32-bit firmware, provided that your CPU supports 64-bit
+ mode.
+
+ Note that it is not possible to boot a mixed-mode enabled
+ kernel via the EFI boot stub - a bootloader that supports
+ the EFI handover protocol must be used.
+
+ If unsure, say N.
+
+config EFI_FAKE_MEMMAP
+ bool "Enable EFI fake memory map"
+ depends on EFI
+ help
+ Saying Y here will enable "efi_fake_mem" boot option. By specifying
+ this parameter, you can add arbitrary attribute to specific memory
+ range by updating original (firmware provided) EFI memmap. This is
+ useful for debugging of EFI memmap related feature, e.g., Address
+ Range Mirroring feature.
+
+config EFI_MAX_FAKE_MEM
+ int "maximum allowable number of ranges in efi_fake_mem boot option"
+ depends on EFI_FAKE_MEMMAP
+ range 1 128
+ default 8
+ help
+ Maximum allowable number of ranges in efi_fake_mem boot option.
+ Ranges can be set up to this value using comma-separated list.
+ The default value is 8.
+
+config EFI_RUNTIME_MAP
+ bool "Export EFI runtime maps to sysfs" if EXPERT
+ depends on EFI
+ default KEXEC_CORE
+ help
+ Export EFI runtime memory regions to /sys/firmware/efi/runtime-map.
+ That memory map is required by the 2nd kernel to set up EFI virtual
+ mappings after kexec, but can also be used for debugging purposes.
+
+ See also Documentation/ABI/testing/sysfs-firmware-efi-runtime-map.
+
+source "kernel/Kconfig.hz"
config KEXEC
bool "kexec system call"
- ---help---
+ select KEXEC_CORE
+ help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. And like a reboot
@@ -1515,14 +2056,59 @@ config KEXEC
It is an ongoing process to be certain the hardware in a machine
is properly shutdown, so do not be surprised if this code does not
- initially work for you. It may help to enable device hotplugging
- support. As of this writing the exact hardware interface is
- strongly in flux, so no good recommendation can be made.
+ initially work for you. As of this writing the exact hardware
+ interface is strongly in flux, so no good recommendation can be
+ made.
+
+config KEXEC_FILE
+ bool "kexec file based system call"
+ select KEXEC_CORE
+ select HAVE_IMA_KEXEC if IMA
+ depends on X86_64
+ depends on CRYPTO=y
+ depends on CRYPTO_SHA256=y
+ help
+ This is new version of kexec system call. This system call is
+ file based and takes file descriptors as system call argument
+ for kernel and initramfs as opposed to list of segments as
+ accepted by previous system call.
+
+config ARCH_HAS_KEXEC_PURGATORY
+ def_bool KEXEC_FILE
+
+config KEXEC_SIG
+ bool "Verify kernel signature during kexec_file_load() syscall"
+ depends on KEXEC_FILE
+ help
+
+ This option makes the kexec_file_load() syscall check for a valid
+ signature of the kernel image. The image can still be loaded without
+ a valid signature unless you also enable KEXEC_SIG_FORCE, though if
+ there's a signature that we can check, then it must be valid.
+
+ In addition to this option, you need to enable signature
+ verification for the corresponding kernel image type being
+ loaded in order for this to work.
+
+config KEXEC_SIG_FORCE
+ bool "Require a valid signature in kexec_file_load() syscall"
+ depends on KEXEC_SIG
+ help
+ This option makes kernel signature verification mandatory for
+ the kexec_file_load() syscall.
+
+config KEXEC_BZIMAGE_VERIFY_SIG
+ bool "Enable bzImage signature verification support"
+ depends on KEXEC_SIG
+ depends on SIGNED_PE_FILE_VERIFICATION
+ select SYSTEM_TRUSTED_KEYRING
+ help
+ Enable bzImage signature verification support.
config CRASH_DUMP
bool "kernel crash dumps"
depends on X86_64 || (X86_32 && HIGHMEM)
- ---help---
+ help
Generate crash dump after being started by kexec.
This should be normally only set in special crash dump kernels
which are loaded in the main kernel with kexec-tools into
@@ -1531,20 +2117,19 @@ config CRASH_DUMP
to a memory address not used by the main kernel or BIOS using
PHYSICAL_START, or it must be built as a relocatable image
(CONFIG_RELOCATABLE=y).
- For more details see Documentation/kdump/kdump.txt
+ For more details see Documentation/admin-guide/kdump/kdump.rst
config KEXEC_JUMP
- bool "kexec jump (EXPERIMENTAL)"
- depends on EXPERIMENTAL
+ bool "kexec jump"
depends on KEXEC && HIBERNATION
- ---help---
+ help
Jump between original kernel and kexeced kernel and invoke
code in physical address mode via KEXEC
config PHYSICAL_START
hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
default "0x1000000"
- ---help---
+ help
This gives the physical address where the kernel is loaded.
If kernel is a not relocatable (CONFIG_RELOCATABLE=n) then
@@ -1569,7 +2154,7 @@ config PHYSICAL_START
the reserved region. In other words, it can be set based on
the "X" value as specified in the "crashkernel=YM@XM"
command line boot parameter passed to the panic-ed
- kernel. Please take a look at Documentation/kdump/kdump.txt
+ kernel. Please take a look at Documentation/admin-guide/kdump/kdump.rst
for more details about crash dumps.
Usage of bzImage for capturing the crash dump is recommended as
@@ -1585,7 +2170,7 @@ config PHYSICAL_START
config RELOCATABLE
bool "Build a relocatable kernel"
default y
- ---help---
+ help
This builds a kernel image that retains relocation information
so it can be loaded someplace besides the default 1MB.
The relocations tend to make the kernel binary about 10% larger,
@@ -1597,18 +2182,54 @@ config RELOCATABLE
Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address
it has been loaded at and the compile time physical address
- (CONFIG_PHYSICAL_START) is ignored.
+ (CONFIG_PHYSICAL_START) is used as the minimum location.
-# Relocation on x86-32 needs some additional build support
+config RANDOMIZE_BASE
+ bool "Randomize the address of the kernel image (KASLR)"
+ depends on RELOCATABLE
+ default y
+ help
+ In support of Kernel Address Space Layout Randomization (KASLR),
+ this randomizes the physical address at which the kernel image
+ is decompressed and the virtual address where the kernel
+ image is mapped, as a security feature that deters exploit
+ attempts relying on knowledge of the location of kernel
+ code internals.
+
+ On 64-bit, the kernel physical and virtual addresses are
+ randomized separately. The physical address will be anywhere
+ between 16MB and the top of physical memory (up to 64TB). The
+ virtual address will be randomized from 16MB up to 1GB (9 bits
+ of entropy). Note that this also reduces the memory space
+ available to kernel modules from 1.5GB to 1GB.
+
+ On 32-bit, the kernel physical and virtual addresses are
+ randomized together. They will be randomized from 16MB up to
+ 512MB (8 bits of entropy).
+
+ Entropy is generated using the RDRAND instruction if it is
+ supported. If RDTSC is supported, its value is mixed into
+ the entropy pool as well. If neither RDRAND nor RDTSC are
+ supported, then entropy is read from the i8254 timer. The
+ usable entropy is limited by the kernel being built using
+ 2GB addressing, and that PHYSICAL_ALIGN must be at a
+ minimum of 2MB. As a result, only 10 bits of entropy are
+ theoretically possible, but the implementations are further
+ limited due to memory layouts.
+
+ If unsure, say Y.
+
+# Relocation on x86 needs some additional build support
config X86_NEED_RELOCS
def_bool y
- depends on X86_32 && RELOCATABLE
+ depends on RANDOMIZE_BASE || (X86_32 && RELOCATABLE)
config PHYSICAL_ALIGN
- hex "Alignment value to which kernel should be aligned" if X86_32
- default "0x1000000"
- range 0x2000 0x1000000
- ---help---
+ hex "Alignment value to which kernel should be aligned"
+ default "0x200000"
+ range 0x2000 0x1000000 if X86_32
+ range 0x200000 0x1000000 if X86_64
+ help
This value puts the alignment restrictions on physical address
where kernel is loaded and run from. Kernel is compiled for an
address which meets above alignment restriction.
@@ -1625,34 +2246,179 @@ config PHYSICAL_ALIGN
end result is that kernel runs from a physical address meeting
above alignment restrictions.
+ On 32-bit this value must be a multiple of 0x2000. On 64-bit
+ this value must be a multiple of 0x200000.
+
Don't change this unless you know what you are doing.
+config DYNAMIC_MEMORY_LAYOUT
+ bool
+ help
+ This option makes base addresses of vmalloc and vmemmap as well as
+ __PAGE_OFFSET movable during boot.
+
+config RANDOMIZE_MEMORY
+ bool "Randomize the kernel memory sections"
+ depends on X86_64
+ depends on RANDOMIZE_BASE
+ select DYNAMIC_MEMORY_LAYOUT
+ default RANDOMIZE_BASE
+ help
+ Randomizes the base virtual address of kernel memory sections
+ (physical memory mapping, vmalloc & vmemmap). This security feature
+ makes exploits relying on predictable memory locations less reliable.
+
+ The order of allocations remains unchanged. Entropy is generated in
+ the same way as RANDOMIZE_BASE. Current implementation in the optimal
+ configuration have in average 30,000 different possible virtual
+ addresses for each memory section.
+
+ If unsure, say Y.
+
+config RANDOMIZE_MEMORY_PHYSICAL_PADDING
+ hex "Physical memory mapping padding" if EXPERT
+ depends on RANDOMIZE_MEMORY
+ default "0xa" if MEMORY_HOTPLUG
+ default "0x0"
+ range 0x1 0x40 if MEMORY_HOTPLUG
+ range 0x0 0x40
+ help
+ Define the padding in terabytes added to the existing physical
+ memory size during kernel memory randomization. It is useful
+ for memory hotplug support but reduces the entropy available for
+ address randomization.
+
+ If unsure, leave at the default value.
+
+config ADDRESS_MASKING
+ bool "Linear Address Masking support"
+ depends on X86_64
+ help
+ Linear Address Masking (LAM) modifies the checking that is applied
+ to 64-bit linear addresses, allowing software to use of the
+ untranslated address bits for metadata.
+
+ The capability can be used for efficient address sanitizers (ASAN)
+ implementation and for optimizations in JITs.
+
config HOTPLUG_CPU
- bool "Support for hot-pluggable CPUs"
- depends on SMP && HOTPLUG
- ---help---
- Say Y here to allow turning CPUs off and on. CPUs can be
- controlled through /sys/devices/system/cpu.
- ( Note: power management support will enable this option
- automatically on SMP systems. )
- Say N if you want to disable CPU hotplug.
+ def_bool y
+ depends on SMP
+
+config BOOTPARAM_HOTPLUG_CPU0
+ bool "Set default setting of cpu0_hotpluggable"
+ depends on HOTPLUG_CPU
+ help
+ Set whether default state of cpu0_hotpluggable is on or off.
+
+ Say Y here to enable CPU0 hotplug by default. If this switch
+ is turned on, there is no need to give cpu0_hotplug kernel
+ parameter and the CPU0 hotplug feature is enabled by default.
+
+ Please note: there are two known CPU0 dependencies if you want
+ to enable the CPU0 hotplug feature either by this switch or by
+ cpu0_hotplug kernel parameter.
+
+ First, resume from hibernate or suspend always starts from CPU0.
+ So hibernate and suspend are prevented if CPU0 is offline.
+
+ Second dependency is PIC interrupts always go to CPU0. CPU0 can not
+ offline if any interrupt can not migrate out of CPU0. There may
+ be other CPU0 dependencies.
+
+ Please make sure the dependencies are under your control before
+ you enable this feature.
+
+ Say N if you don't want to enable CPU0 hotplug feature by default.
+ You still can enable the CPU0 hotplug feature at boot by kernel
+ parameter cpu0_hotplug.
+
+config DEBUG_HOTPLUG_CPU0
+ def_bool n
+ prompt "Debug CPU0 hotplug"
+ depends on HOTPLUG_CPU
+ help
+ Enabling this option offlines CPU0 (if CPU0 can be offlined) as
+ soon as possible and boots up userspace with CPU0 offlined. User
+ can online CPU0 back after boot time.
+
+ To debug CPU0 hotplug, you need to enable CPU0 offline/online
+ feature by either turning on CONFIG_BOOTPARAM_HOTPLUG_CPU0 during
+ compilation or giving cpu0_hotplug kernel parameter at boot.
+
+ If unsure, say N.
config COMPAT_VDSO
- def_bool y
- prompt "Compat VDSO support"
- depends on X86_32 || IA32_EMULATION
- ---help---
- Map the 32-bit VDSO to the predictable old-style address too.
+ def_bool n
+ prompt "Disable the 32-bit vDSO (needed for glibc 2.3.3)"
+ depends on COMPAT_32
+ help
+ Certain buggy versions of glibc will crash if they are
+ presented with a 32-bit vDSO that is not mapped at the address
+ indicated in its segment table.
- Say N here if you are running a sufficiently recent glibc
- version (2.3.3 or later), to remove the high-mapped
- VDSO mapping and to exclusively use the randomized VDSO.
+ The bug was introduced by f866314b89d56845f55e6f365e18b31ec978ec3a
+ and fixed by 3b3ddb4f7db98ec9e912ccdf54d35df4aa30e04a and
+ 49ad572a70b8aeb91e57483a11dd1b77e31c4468. Glibc 2.3.3 is
+ the only released version with the bug, but OpenSUSE 9
+ contains a buggy "glibc 2.3.2".
- If unsure, say Y.
+ The symptom of the bug is that everything crashes on startup, saying:
+ dl_main: Assertion `(void *) ph->p_vaddr == _rtld_local._dl_sysinfo_dso' failed!
+
+ Saying Y here changes the default value of the vdso32 boot
+ option from 1 to 0, which turns off the 32-bit vDSO entirely.
+ This works around the glibc bug but hurts performance.
+
+ If unsure, say N: if you are compiling your own kernel, you
+ are unlikely to be using a buggy version of glibc.
+
+choice
+ prompt "vsyscall table for legacy applications"
+ depends on X86_64
+ default LEGACY_VSYSCALL_XONLY
+ help
+ Legacy user code that does not know how to find the vDSO expects
+ to be able to issue three syscalls by calling fixed addresses in
+ kernel space. Since this location is not randomized with ASLR,
+ it can be used to assist security vulnerability exploitation.
+
+ This setting can be changed at boot time via the kernel command
+ line parameter vsyscall=[emulate|xonly|none]. Emulate mode
+ is deprecated and can only be enabled using the kernel command
+ line.
+
+ On a system with recent enough glibc (2.14 or newer) and no
+ static binaries, you can say None without a performance penalty
+ to improve security.
+
+ If unsure, select "Emulate execution only".
+
+ config LEGACY_VSYSCALL_XONLY
+ bool "Emulate execution only"
+ help
+ The kernel traps and emulates calls into the fixed vsyscall
+ address mapping and does not allow reads. This
+ configuration is recommended when userspace might use the
+ legacy vsyscall area but support for legacy binary
+ instrumentation of legacy code is not needed. It mitigates
+ certain uses of the vsyscall area as an ASLR-bypassing
+ buffer.
+
+ config LEGACY_VSYSCALL_NONE
+ bool "None"
+ help
+ There will be no vsyscall mapping at all. This will
+ eliminate any risk of ASLR bypass due to the vsyscall
+ fixed address mapping. Attempts to use the vsyscalls
+ will be reported to dmesg, so that either old or
+ malicious userspace programs can be identified.
+
+endchoice
config CMDLINE_BOOL
bool "Built-in kernel command line"
- ---help---
+ help
Allow for specifying boot arguments to the kernel at
build time. On some systems (e.g. embedded ones), it is
necessary or convenient to provide some or all of the
@@ -1661,7 +2427,7 @@ config CMDLINE_BOOL
To compile command line arguments into the kernel,
set this option to 'Y', then fill in the
- the boot arguments in CONFIG_CMDLINE.
+ boot arguments in CONFIG_CMDLINE.
Systems with fully functional boot loaders (i.e. non-embedded)
should leave this option set to 'N'.
@@ -1670,7 +2436,7 @@ config CMDLINE
string "Built-in kernel command string"
depends on CMDLINE_BOOL
default ""
- ---help---
+ help
Enter arguments here that should be compiled into the kernel
image and used at boot time. If the boot loader provides a
command line at boot time, it is appended to this string to
@@ -1685,52 +2451,231 @@ config CMDLINE
config CMDLINE_OVERRIDE
bool "Built-in command line overrides boot loader arguments"
- depends on CMDLINE_BOOL
- ---help---
+ depends on CMDLINE_BOOL && CMDLINE != ""
+ help
Set this option to 'Y' to have the kernel ignore the boot loader
command line, and use ONLY the built-in command line.
This is used to work around broken boot loaders. This should
be set to 'N' under normal conditions.
+config MODIFY_LDT_SYSCALL
+ bool "Enable the LDT (local descriptor table)" if EXPERT
+ default y
+ help
+ Linux can allow user programs to install a per-process x86
+ Local Descriptor Table (LDT) using the modify_ldt(2) system
+ call. This is required to run 16-bit or segmented code such as
+ DOSEMU or some Wine programs. It is also used by some very old
+ threading libraries.
+
+ Enabling this feature adds a small amount of overhead to
+ context switches and increases the low-level kernel attack
+ surface. Disabling it removes the modify_ldt(2) system call.
+
+ Saying 'N' here may make sense for embedded or server kernels.
+
+config STRICT_SIGALTSTACK_SIZE
+ bool "Enforce strict size checking for sigaltstack"
+ depends on DYNAMIC_SIGFRAME
+ help
+ For historical reasons MINSIGSTKSZ is a constant which became
+ already too small with AVX512 support. Add a mechanism to
+ enforce strict checking of the sigaltstack size against the
+ real size of the FPU frame. This option enables the check
+ by default. It can also be controlled via the kernel command
+ line option 'strict_sas_size' independent of this config
+ switch. Enabling it might break existing applications which
+ allocate a too small sigaltstack but 'work' because they
+ never get a signal delivered.
+
+ Say 'N' unless you want to really enforce this check.
+
+source "kernel/livepatch/Kconfig"
+
endmenu
-config ARCH_ENABLE_MEMORY_HOTPLUG
+config CC_HAS_SLS
+ def_bool $(cc-option,-mharden-sls=all)
+
+config CC_HAS_RETURN_THUNK
+ def_bool $(cc-option,-mfunction-return=thunk-extern)
+
+config CC_HAS_ENTRY_PADDING
+ def_bool $(cc-option,-fpatchable-function-entry=16,16)
+
+config FUNCTION_PADDING_CFI
+ int
+ default 59 if FUNCTION_ALIGNMENT_64B
+ default 27 if FUNCTION_ALIGNMENT_32B
+ default 11 if FUNCTION_ALIGNMENT_16B
+ default 3 if FUNCTION_ALIGNMENT_8B
+ default 0
+
+# Basically: FUNCTION_ALIGNMENT - 5*CFI_CLANG
+# except Kconfig can't do arithmetic :/
+config FUNCTION_PADDING_BYTES
+ int
+ default FUNCTION_PADDING_CFI if CFI_CLANG
+ default FUNCTION_ALIGNMENT
+
+config CALL_PADDING
+ def_bool n
+ depends on CC_HAS_ENTRY_PADDING && OBJTOOL
+ select FUNCTION_ALIGNMENT_16B
+
+config FINEIBT
def_bool y
- depends on X86_64 || (X86_32 && HIGHMEM)
+ depends on X86_KERNEL_IBT && CFI_CLANG && RETPOLINE
+ select CALL_PADDING
-config ARCH_ENABLE_MEMORY_HOTREMOVE
+config HAVE_CALL_THUNKS
def_bool y
- depends on MEMORY_HOTPLUG
+ depends on CC_HAS_ENTRY_PADDING && RETHUNK && OBJTOOL
-config HAVE_ARCH_EARLY_PFN_TO_NID
- def_bool X86_64
- depends on NUMA
+config CALL_THUNKS
+ def_bool n
+ select CALL_PADDING
-config USE_PERCPU_NUMA_NODE_ID
+config PREFIX_SYMBOLS
+ def_bool y
+ depends on CALL_PADDING && !CFI_CLANG
+
+menuconfig SPECULATION_MITIGATIONS
+ bool "Mitigations for speculative execution vulnerabilities"
+ default y
+ help
+ Say Y here to enable options which enable mitigations for
+ speculative execution hardware vulnerabilities.
+
+ If you say N, all mitigations will be disabled. You really
+ should know what you are doing to say so.
+
+if SPECULATION_MITIGATIONS
+
+config PAGE_TABLE_ISOLATION
+ bool "Remove the kernel mapping in user mode"
+ default y
+ depends on (X86_64 || X86_PAE)
+ help
+ This feature reduces the number of hardware side channels by
+ ensuring that the majority of kernel addresses are not mapped
+ into userspace.
+
+ See Documentation/arch/x86/pti.rst for more details.
+
+config RETPOLINE
+ bool "Avoid speculative indirect branches in kernel"
+ select OBJTOOL if HAVE_OBJTOOL
+ default y
+ help
+ Compile kernel with the retpoline compiler options to guard against
+ kernel-to-user data leaks by avoiding speculative indirect
+ branches. Requires a compiler with -mindirect-branch=thunk-extern
+ support for full protection. The kernel may run slower.
+
+config RETHUNK
+ bool "Enable return-thunks"
+ depends on RETPOLINE && CC_HAS_RETURN_THUNK
+ select OBJTOOL if HAVE_OBJTOOL
+ default y if X86_64
+ help
+ Compile the kernel with the return-thunks compiler option to guard
+ against kernel-to-user data leaks by avoiding return speculation.
+ Requires a compiler with -mfunction-return=thunk-extern
+ support for full protection. The kernel may run slower.
+
+config CPU_UNRET_ENTRY
+ bool "Enable UNRET on kernel entry"
+ depends on CPU_SUP_AMD && RETHUNK && X86_64
+ default y
+ help
+ Compile the kernel with support for the retbleed=unret mitigation.
+
+config CALL_DEPTH_TRACKING
+ bool "Mitigate RSB underflow with call depth tracking"
+ depends on CPU_SUP_INTEL && HAVE_CALL_THUNKS
+ select HAVE_DYNAMIC_FTRACE_NO_PATCHABLE
+ select CALL_THUNKS
+ default y
+ help
+ Compile the kernel with call depth tracking to mitigate the Intel
+ SKL Return-Speculation-Buffer (RSB) underflow issue. The
+ mitigation is off by default and needs to be enabled on the
+ kernel command line via the retbleed=stuff option. For
+ non-affected systems the overhead of this option is marginal as
+ the call depth tracking is using run-time generated call thunks
+ in a compiler generated padding area and call patching. This
+ increases text size by ~5%. For non affected systems this space
+ is unused. On affected SKL systems this results in a significant
+ performance gain over the IBRS mitigation.
+
+config CALL_THUNKS_DEBUG
+ bool "Enable call thunks and call depth tracking debugging"
+ depends on CALL_DEPTH_TRACKING
+ select FUNCTION_ALIGNMENT_32B
+ default n
+ help
+ Enable call/ret counters for imbalance detection and build in
+ a noisy dmesg about callthunks generation and call patching for
+ trouble shooting. The debug prints need to be enabled on the
+ kernel command line with 'debug-callthunks'.
+ Only enable this when you are debugging call thunks as this
+ creates a noticeable runtime overhead. If unsure say N.
+
+config CPU_IBPB_ENTRY
+ bool "Enable IBPB on kernel entry"
+ depends on CPU_SUP_AMD && X86_64
+ default y
+ help
+ Compile the kernel with support for the retbleed=ibpb mitigation.
+
+config CPU_IBRS_ENTRY
+ bool "Enable IBRS on kernel entry"
+ depends on CPU_SUP_INTEL && X86_64
+ default y
+ help
+ Compile the kernel with support for the spectre_v2=ibrs mitigation.
+ This mitigates both spectre_v2 and retbleed at great cost to
+ performance.
+
+config SLS
+ bool "Mitigate Straight-Line-Speculation"
+ depends on CC_HAS_SLS && X86_64
+ select OBJTOOL if HAVE_OBJTOOL
+ default n
+ help
+ Compile the kernel with straight-line-speculation options to guard
+ against straight line speculation. The kernel image might be slightly
+ larger.
+
+endif
+
+config ARCH_HAS_ADD_PAGES
+ def_bool y
+ depends on ARCH_ENABLE_MEMORY_HOTPLUG
+
+config ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE
def_bool y
- depends on NUMA
menu "Power management and ACPI options"
config ARCH_HIBERNATION_HEADER
def_bool y
- depends on X86_64 && HIBERNATION
+ depends on HIBERNATION
source "kernel/power/Kconfig"
source "drivers/acpi/Kconfig"
-source "drivers/sfi/Kconfig"
-
config X86_APM_BOOT
def_bool y
- depends on APM || APM_MODULE
+ depends on APM
menuconfig APM
tristate "APM (Advanced Power Management) BIOS support"
depends on X86_32 && PM_SLEEP
- ---help---
+ help
APM is a BIOS specification for saving power using several different
techniques. This is mostly useful for battery powered laptops with
APM compliant BIOSes. If you say Y here, the system time will be
@@ -1745,8 +2690,8 @@ menuconfig APM
machines with more than one CPU.
In order to use APM, you will need supporting software. For location
- and more information, read <file:Documentation/power/pm.txt> and the
- Battery Powered Linux mini-HOWTO, available from
+ and more information, read <file:Documentation/power/apm-acpi.rst>
+ and the Battery Powered Linux mini-HOWTO, available from
<http://www.tldp.org/docs.html#howto>.
This driver does not spin down disk drives (see the hdparm(8)
@@ -1769,7 +2714,7 @@ menuconfig APM
1) make sure that you have enough swap space and that it is
enabled.
- 2) pass the "no-hlt" option to the kernel
+ 2) pass the "idle=poll" option to the kernel
3) switch on floating point emulation in the kernel and pass
the "no387" option to the kernel
4) pass the "floppy=nodma" option to the kernel
@@ -1790,14 +2735,14 @@ if APM
config APM_IGNORE_USER_SUSPEND
bool "Ignore USER SUSPEND"
- ---help---
+ help
This option will ignore USER SUSPEND requests. On machines with a
compliant APM BIOS, you want to say N. However, on the NEC Versa M
series notebooks, it is necessary to say Y because of a BIOS bug.
config APM_DO_ENABLE
bool "Enable PM at boot time"
- ---help---
+ help
Enable APM features at boot time. From page 36 of the APM BIOS
specification: "When disabled, the APM BIOS does not automatically
power manage devices, enter the Standby State, enter the Suspend
@@ -1813,8 +2758,9 @@ config APM_DO_ENABLE
this feature.
config APM_CPU_IDLE
+ depends on CPU_IDLE
bool "Make CPU Idle calls when idle"
- ---help---
+ help
Enable calls to APM CPU Idle/CPU Busy inside the kernel's idle loop.
On some machines, this can activate improved power savings, such as
a slowed CPU clock rate, when the machine is idle. These idle calls
@@ -1825,7 +2771,7 @@ config APM_CPU_IDLE
config APM_DISPLAY_BLANK
bool "Enable console blanking using APM"
- ---help---
+ help
Enable console blanking using the APM. Some laptops can use this to
turn off the LCD backlight when the screen blanker of the Linux
virtual console blanks the screen. Note that this is only used by
@@ -1838,7 +2784,7 @@ config APM_DISPLAY_BLANK
config APM_ALLOW_INTS
bool "Allow interrupts during APM BIOS calls"
- ---help---
+ help
Normally we disable external interrupts while we are making calls to
the APM BIOS as a measure to lessen the effects of a badly behaving
BIOS implementation. The BIOS should reenable interrupts if it
@@ -1848,7 +2794,7 @@ config APM_ALLOW_INTS
endif # APM
-source "arch/x86/kernel/cpu/cpufreq/Kconfig"
+source "drivers/cpufreq/Kconfig"
source "drivers/cpuidle/Kconfig"
@@ -1856,24 +2802,13 @@ source "drivers/idle/Kconfig"
endmenu
-
menu "Bus options (PCI etc.)"
-config PCI
- bool "PCI support"
- default y
- select ARCH_SUPPORTS_MSI if (X86_LOCAL_APIC && X86_IO_APIC)
- ---help---
- Find out whether you have a PCI motherboard. PCI is the name of a
- bus system, i.e. the way the CPU talks to the other stuff inside
- your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
- VESA. If you have PCI, say Y, otherwise N.
-
choice
prompt "PCI access mode"
depends on X86_32 && PCI
default PCI_GOANY
- ---help---
+ help
On PCI systems, the BIOS can be used to detect the PCI devices and
determine their configuration. However, some old PCI motherboards
have BIOS bugs and may crash if this is done. Also, some embedded
@@ -1913,11 +2848,13 @@ config PCI_BIOS
# x86-64 doesn't support PCI BIOS access from long mode so always go direct.
config PCI_DIRECT
def_bool y
- depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC))
+ depends on PCI && (X86_64 || (PCI_GODIRECT || PCI_GOANY || PCI_GOOLPC || PCI_GOMMCONFIG))
config PCI_MMCONFIG
- def_bool y
- depends on X86_32 && PCI && (ACPI || SFI) && (PCI_GOMMCONFIG || PCI_GOANY)
+ bool "Support mmconfig PCI config space access" if X86_64
+ default y
+ depends on PCI && (ACPI || JAILHOUSE_GUEST)
+ depends on X86_64 || (PCI_GOANY || PCI_GOMMCONFIG)
config PCI_OLPC
def_bool y
@@ -1926,20 +2863,14 @@ config PCI_OLPC
config PCI_XEN
def_bool y
depends on PCI && XEN
- select SWIOTLB_XEN
-config PCI_DOMAINS
+config MMCONF_FAM10H
def_bool y
- depends on PCI
-
-config PCI_MMCONFIG
- bool "Support mmconfig PCI config space access"
- depends on X86_64 && PCI && ACPI
+ depends on X86_64 && PCI_MMCONFIG && ACPI
config PCI_CNB20LE_QUIRK
bool "Read CNB20LE Host Bridge Windows" if EXPERT
- default n
- depends on PCI && EXPERIMENTAL
+ depends on PCI
help
Read the PCI windows out of the CNB20LE host bridge. This allows
PCI hotplug to work on systems with the CNB20LE chipset which do
@@ -1950,58 +2881,16 @@ config PCI_CNB20LE_QUIRK
You should say N unless you know you need this.
-config DMAR
- bool "Support for DMA Remapping Devices (EXPERIMENTAL)"
- depends on PCI_MSI && ACPI && EXPERIMENTAL
- help
- DMA remapping (DMAR) devices support enables independent address
- translations for Direct Memory Access (DMA) from devices.
- These DMA remapping devices are reported via ACPI tables
- and include PCI device scope covered by these DMA
- remapping devices.
-
-config DMAR_DEFAULT_ON
- def_bool y
- prompt "Enable DMA Remapping Devices by default"
- depends on DMAR
- help
- Selecting this option will enable a DMAR device at boot time if
- one is found. If this option is not selected, DMAR support can
- be enabled by passing intel_iommu=on to the kernel. It is
- recommended you say N here while the DMAR code remains
- experimental.
-
-config DMAR_BROKEN_GFX_WA
- bool "Workaround broken graphics drivers (going away soon)"
- depends on DMAR && BROKEN
- ---help---
- Current Graphics drivers tend to use physical address
- for DMA and avoid using DMA APIs. Setting this config
- option permits the IOMMU driver to set a unity map for
- all the OS-visible memory. Hence the driver can continue
- to use physical addresses for DMA, at least until this
- option is removed in the 2.6.32 kernel.
-
-config DMAR_FLOPPY_WA
- def_bool y
- depends on DMAR
- ---help---
- Floppy disk drivers are known to bypass DMA API calls
- thereby failing to work when IOMMU is enabled. This
- workaround will setup a 1:1 mapping for the first
- 16MiB to make floppy (an ISA device) work.
-
-config INTR_REMAP
- bool "Support for Interrupt Remapping (EXPERIMENTAL)"
- depends on X86_64 && X86_IO_APIC && PCI_MSI && ACPI && EXPERIMENTAL
- ---help---
- Supports Interrupt remapping for IO-APIC and MSI devices.
- To use x2apic mode in the CPU's which support x2APIC enhancements or
- to support platforms with CPU's having > 8 bit APIC ID, say Y.
-
-source "drivers/pci/pcie/Kconfig"
-
-source "drivers/pci/Kconfig"
+config ISA_BUS
+ bool "ISA bus support on modern systems" if EXPERT
+ help
+ Expose ISA bus device drivers and options available for selection and
+ configuration. Enable this option if your target machine has an ISA
+ bus. ISA is an older system, displaced by PCI and newer bus
+ architectures -- if your target machine is modern, it probably does
+ not have an ISA bus.
+
+ If unsure, say N.
# x86_64 have no ISA slots, but can have ISA-style DMA.
config ISA_DMA_API
@@ -2015,44 +2904,16 @@ if X86_32
config ISA
bool "ISA support"
- ---help---
+ help
Find out whether you have ISA slots on your motherboard. ISA is the
name of a bus system, i.e. the way the CPU talks to the other stuff
inside your box. Other bus systems are PCI, EISA, MicroChannel
(MCA) or VESA. ISA is an older system, now being displaced by PCI;
newer boards don't support it. If you have ISA, say Y, otherwise N.
-config EISA
- bool "EISA support"
- depends on ISA
- ---help---
- The Extended Industry Standard Architecture (EISA) bus was
- developed as an open alternative to the IBM MicroChannel bus.
-
- The EISA bus provided some of the features of the IBM MicroChannel
- bus while maintaining backward compatibility with cards made for
- the older ISA bus. The EISA bus saw limited use between 1988 and
- 1995 when it was made obsolete by the PCI bus.
-
- Say Y here if you are building a kernel for an EISA-based machine.
-
- Otherwise, say N.
-
-source "drivers/eisa/Kconfig"
-
-config MCA
- bool "MCA support"
- ---help---
- MicroChannel Architecture is found in some IBM PS/2 machines and
- laptops. It is a bus system similar to PCI or ISA. See
- <file:Documentation/mca.txt> (and especially the web page given
- there) before attempting to build an MCA bus kernel.
-
-source "drivers/mca/Kconfig"
-
config SCx200
tristate "NatSemi SCx200 support"
- ---help---
+ help
This provides basic support for National Semiconductor's
(now AMD's) Geode processors. The driver probes for the
PCI-IDs of several on-chip devices, so its a good dependency
@@ -2064,7 +2925,7 @@ config SCx200HR_TIMER
tristate "NatSemi SCx200 27MHz High-Resolution Timer Support"
depends on SCx200
default y
- ---help---
+ help
This driver provides a clocksource built upon the on-chip
27MHz high-resolution timer. Its also a workaround for
NSC Geode SC-1100's buggy TSC, which loses time when the
@@ -2076,101 +2937,141 @@ config OLPC
depends on !X86_PAE
select GPIOLIB
select OF
- select OF_PROMTREE if PROC_DEVICETREE
- ---help---
+ select OF_PROMTREE
+ select IRQ_DOMAIN
+ select OLPC_EC
+ help
Add support for detecting the unique features of the OLPC
XO hardware.
-config OLPC_XO1
- tristate "OLPC XO-1 support"
- depends on OLPC && MFD_CS5535
- ---help---
- Add support for non-essential features of the OLPC XO-1 laptop.
+config OLPC_XO1_PM
+ bool "OLPC XO-1 Power Management"
+ depends on OLPC && MFD_CS5535=y && PM_SLEEP
+ help
+ Add support for poweroff and suspend of the OLPC XO-1 laptop.
-endif # X86_32
+config OLPC_XO1_RTC
+ bool "OLPC XO-1 Real Time Clock"
+ depends on OLPC_XO1_PM && RTC_DRV_CMOS
+ help
+ Add support for the XO-1 real time clock, which can be used as a
+ programmable wakeup source.
+
+config OLPC_XO1_SCI
+ bool "OLPC XO-1 SCI extras"
+ depends on OLPC && OLPC_XO1_PM && GPIO_CS5535=y
+ depends on INPUT=y
+ select POWER_SUPPLY
+ help
+ Add support for SCI-based features of the OLPC XO-1 laptop:
+ - EC-driven system wakeups
+ - Power button
+ - Ebook switch
+ - Lid switch
+ - AC adapter status updates
+ - Battery status updates
+
+config OLPC_XO15_SCI
+ bool "OLPC XO-1.5 SCI extras"
+ depends on OLPC && ACPI
+ select POWER_SUPPLY
+ help
+ Add support for SCI-based features of the OLPC XO-1.5 laptop:
+ - EC-driven system wakeups
+ - AC adapter status updates
+ - Battery status updates
-config AMD_NB
- def_bool y
- depends on CPU_SUP_AMD && PCI
+config ALIX
+ bool "PCEngines ALIX System Support (LED setup)"
+ select GPIOLIB
+ help
+ This option enables system support for the PCEngines ALIX.
+ At present this just sets up LEDs for GPIO control on
+ ALIX2/3/6 boards. However, other system specific setup should
+ get added here.
-source "drivers/pcmcia/Kconfig"
+ Note: You must still enable the drivers for GPIO and LED support
+ (GPIO_CS5535 & LEDS_GPIO) to actually use the LEDs
-source "drivers/pci/hotplug/Kconfig"
+ Note: You have to set alix.force=1 for boards with Award BIOS.
-config RAPIDIO
- bool "RapidIO support"
- depends on PCI
- default n
+config NET5501
+ bool "Soekris Engineering net5501 System Support (LEDS, GPIO, etc)"
+ select GPIOLIB
help
- If you say Y here, the kernel will include drivers and
- infrastructure code to support RapidIO interconnect devices.
+ This option enables system support for the Soekris Engineering net5501.
-source "drivers/rapidio/Kconfig"
+config GEOS
+ bool "Traverse Technologies GEOS System Support (LEDS, GPIO, etc)"
+ select GPIOLIB
+ depends on DMI
+ help
+ This option enables system support for the Traverse Technologies GEOS.
+
+config TS5500
+ bool "Technologic Systems TS-5500 platform support"
+ depends on MELAN
+ select CHECK_SIGNATURE
+ select NEW_LEDS
+ select LEDS_CLASS
+ help
+ This option enables system support for the Technologic Systems TS-5500.
-endmenu
+endif # X86_32
+config AMD_NB
+ def_bool y
+ depends on CPU_SUP_AMD && PCI
-menu "Executable file formats / Emulations"
+endmenu
-source "fs/Kconfig.binfmt"
+menu "Binary Emulations"
config IA32_EMULATION
bool "IA32 Emulation"
depends on X86_64
- select COMPAT_BINFMT_ELF
- ---help---
- Include code to run 32-bit programs under a 64-bit kernel. You should
- likely turn this on, unless you're 100% sure that you don't have any
- 32-bit programs left.
-
-config IA32_AOUT
- tristate "IA32 a.out support"
- depends on IA32_EMULATION
- ---help---
- Support old a.out binaries in the 32bit emulation.
+ select ARCH_WANT_OLD_COMPAT_IPC
+ select BINFMT_ELF
+ select COMPAT_OLD_SIGACTION
+ help
+ Include code to run legacy 32-bit programs under a
+ 64-bit kernel. You should likely turn this on, unless you're
+ 100% sure that you don't have any 32-bit programs left.
+
+config X86_X32_ABI
+ bool "x32 ABI for 64-bit mode"
+ depends on X86_64
+ # llvm-objcopy does not convert x86_64 .note.gnu.property or
+ # compressed debug sections to x86_x32 properly:
+ # https://github.com/ClangBuiltLinux/linux/issues/514
+ # https://github.com/ClangBuiltLinux/linux/issues/1141
+ depends on $(success,$(OBJCOPY) --version | head -n1 | grep -qv llvm)
+ help
+ Include code to run binaries for the x32 native 32-bit ABI
+ for 64-bit processors. An x32 process gets access to the
+ full 64-bit register file and wide data path while leaving
+ pointers at 32 bits for smaller memory footprint.
+
+config COMPAT_32
+ def_bool y
+ depends on IA32_EMULATION || X86_32
+ select HAVE_UID16
+ select OLD_SIGSUSPEND3
config COMPAT
def_bool y
- depends on IA32_EMULATION
+ depends on IA32_EMULATION || X86_X32_ABI
config COMPAT_FOR_U64_ALIGNMENT
- def_bool COMPAT
- depends on X86_64
-
-config SYSVIPC_COMPAT
def_bool y
- depends on COMPAT && SYSVIPC
-
-config KEYS_COMPAT
- bool
- depends on COMPAT && KEYS
- default y
+ depends on COMPAT
endmenu
-
config HAVE_ATOMIC_IOMAP
def_bool y
depends on X86_32
-config HAVE_TEXT_POKE_SMP
- bool
- select STOP_MACHINE if SMP
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "drivers/firmware/Kconfig"
-
-source "fs/Kconfig"
-
-source "arch/x86/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
source "arch/x86/kvm/Kconfig"
-source "lib/Kconfig"
+source "arch/x86/Kconfig.assembler"
diff --git a/arch/x86/Kconfig.assembler b/arch/x86/Kconfig.assembler
new file mode 100644
index 000000000000..b88f784cb02e
--- /dev/null
+++ b/arch/x86/Kconfig.assembler
@@ -0,0 +1,26 @@
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (C) 2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+
+config AS_AVX512
+ def_bool $(as-instr,vpmovm2b %k1$(comma)%zmm5)
+ help
+ Supported by binutils >= 2.25 and LLVM integrated assembler
+
+config AS_SHA1_NI
+ def_bool $(as-instr,sha1msg1 %xmm0$(comma)%xmm1)
+ help
+ Supported by binutils >= 2.24 and LLVM integrated assembler
+
+config AS_SHA256_NI
+ def_bool $(as-instr,sha256msg1 %xmm0$(comma)%xmm1)
+ help
+ Supported by binutils >= 2.24 and LLVM integrated assembler
+config AS_TPAUSE
+ def_bool $(as-instr,tpause %ecx)
+ help
+ Supported by binutils >= 2.31.1 and LLVM integrated assembler >= V7
+
+config AS_GFNI
+ def_bool $(as-instr,vgf2p8mulb %xmm0$(comma)%xmm1$(comma)%xmm2)
+ help
+ Supported by binutils >= 2.30 and LLVM integrated assembler
diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index d161e939df62..542377cd419d 100644
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -1,32 +1,28 @@
+# SPDX-License-Identifier: GPL-2.0
# Put here option for CPU selection and depending optimization
-if !X86_ELAN
-
choice
prompt "Processor family"
default M686 if X86_32
default GENERIC_CPU if X86_64
+ help
+ This is the processor type of your CPU. This information is
+ used for optimizing purposes. In order to compile a kernel
+ that can run on all supported x86 CPU types (albeit not
+ optimally fast), you can specify "486" here.
-config M386
- bool "386"
- depends on X86_32 && !UML
- ---help---
- This is the processor type of your CPU. This information is used for
- optimizing purposes. In order to compile a kernel that can run on
- all x86 CPU types (albeit not optimally fast), you can specify
- "386" here.
+ Note that the 386 is no longer supported, this includes
+ AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI 486DLC/DLC2,
+ UMC 486SX-S and the NexGen Nx586.
The kernel will not necessarily run on earlier architectures than
the one you have chosen, e.g. a Pentium optimized kernel will run on
a PPro, but not necessarily on a i486.
Here are the settings recommended for greatest speed:
- - "386" for the AMD/Cyrix/Intel 386DX/DXL/SL/SLC/SX, Cyrix/TI
- 486DLC/DLC2, and UMC 486SX-S. Only "386" kernels will run on a 386
- class machine.
- "486" for the AMD/Cyrix/IBM/Intel 486DX/DX2/DX4 or
- SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
+ SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or U5S.
- "586" for generic Pentium CPUs lacking the TSC
- (time stamp counter) register.
+ (time stamp counter) register.
- "Pentium-Classic" for the Intel Pentium.
- "Pentium-MMX" for the Intel Pentium MMX.
- "Pentium-Pro" for the Intel Pentium Pro.
@@ -35,31 +31,43 @@ config M386
- "Pentium-4" for the Intel Pentium 4 or P4-based Celeron.
- "K6" for the AMD K6, K6-II and K6-III (aka K6-3D).
- "Athlon" for the AMD K7 family (Athlon/Duron/Thunderbird).
+ - "Opteron/Athlon64/Hammer/K8" for all K8 and newer AMD CPUs.
- "Crusoe" for the Transmeta Crusoe series.
- "Efficeon" for the Transmeta Efficeon series.
- "Winchip-C6" for original IDT Winchip.
- "Winchip-2" for IDT Winchips with 3dNow! capabilities.
+ - "AMD Elan" for the 32-bit AMD Elan embedded CPU.
- "GeodeGX1" for Geode GX1 (Cyrix MediaGX).
- "Geode GX/LX" For AMD Geode GX and LX processors.
- "CyrixIII/VIA C3" for VIA Cyrix III or VIA C3.
- "VIA C3-2" for VIA C3-2 "Nehemiah" (model 9 and above).
- "VIA C7" for VIA C7.
+ - "Intel P4" for the Pentium 4/Netburst microarchitecture.
+ - "Core 2/newer Xeon" for all core2 and newer Intel CPUs.
+ - "Intel Atom" for the Atom-microarchitecture CPUs.
+ - "Generic-x86-64" for a kernel which runs on any x86-64 CPU.
+
+ See each option's help text for additional details. If you don't know
+ what to do, choose "486".
- If you don't know what to do, choose "386".
+config M486SX
+ bool "486SX"
+ depends on X86_32
+ help
+ Select this for an 486-class CPU without an FPU such as
+ AMD/Cyrix/IBM/Intel SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5S.
config M486
- bool "486"
+ bool "486DX"
depends on X86_32
- ---help---
- Select this for a 486 series processor, either Intel or one of the
- compatible processors from AMD, Cyrix, IBM, or Intel. Includes DX,
- DX2, and DX4 variants; also SL/SLC/SLC2/SLC3/SX/SX2 and UMC U5D or
- U5S.
+ help
+ Select this for an 486-class CPU such as AMD/Cyrix/IBM/Intel
+ 486DX/DX2/DX4 and UMC U5D.
config M586
bool "586/K5/5x86/6x86/6x86MX"
depends on X86_32
- ---help---
+ help
Select this for an 586 or 686 series processor such as the AMD K5,
the Cyrix 5x86, 6x86 and 6x86MX. This choice does not
assume the RDTSC (Read Time Stamp Counter) instruction.
@@ -67,21 +75,21 @@ config M586
config M586TSC
bool "Pentium-Classic"
depends on X86_32
- ---help---
+ help
Select this for a Pentium Classic processor with the RDTSC (Read
Time Stamp Counter) instruction for benchmarking.
config M586MMX
bool "Pentium-MMX"
depends on X86_32
- ---help---
+ help
Select this for a Pentium with the MMX graphics/multimedia
extended instructions.
config M686
bool "Pentium-Pro"
depends on X86_32
- ---help---
+ help
Select this for Intel Pentium Pro chips. This enables the use of
Pentium Pro extended instructions, and disables the init-time guard
against the f00f bug found in earlier Pentiums.
@@ -89,7 +97,7 @@ config M686
config MPENTIUMII
bool "Pentium-II/Celeron(pre-Coppermine)"
depends on X86_32
- ---help---
+ help
Select this for Intel chips based on the Pentium-II and
pre-Coppermine Celeron core. This option enables an unaligned
copy optimization, compiles the kernel with optimization flags
@@ -99,7 +107,7 @@ config MPENTIUMII
config MPENTIUMIII
bool "Pentium-III/Celeron(Coppermine)/Pentium-III Xeon"
depends on X86_32
- ---help---
+ help
Select this for Intel chips based on the Pentium-III and
Celeron-Coppermine core. This option enables use of some
extended prefetch instructions in addition to the Pentium II
@@ -108,14 +116,14 @@ config MPENTIUMIII
config MPENTIUMM
bool "Pentium M"
depends on X86_32
- ---help---
+ help
Select this for Intel Pentium M (not Pentium-4 M)
notebook chips.
config MPENTIUM4
bool "Pentium-4/Celeron(P4-based)/Pentium-4 M/older Xeon"
depends on X86_32
- ---help---
+ help
Select this for Intel Pentium 4 chips. This includes the
Pentium 4, Pentium D, P4-based Celeron and Xeon, and
Pentium-4 M (not Pentium M) chips. This option enables compile
@@ -151,7 +159,7 @@ config MPENTIUM4
config MK6
bool "K6/K6-II/K6-III"
depends on X86_32
- ---help---
+ help
Select this for an AMD K6-family processor. Enables use of
some extended instructions, and passes appropriate optimization
flags to GCC.
@@ -159,14 +167,14 @@ config MK6
config MK7
bool "Athlon/Duron/K7"
depends on X86_32
- ---help---
+ help
Select this for an AMD Athlon K7-family processor. Enables use of
some extended instructions, and passes appropriate optimization
flags to GCC.
config MK8
bool "Opteron/Athlon64/Hammer/K8"
- ---help---
+ help
Select this for an AMD Opteron or Athlon64 Hammer-family processor.
Enables use of some extended instructions, and passes appropriate
optimization flags to GCC.
@@ -174,7 +182,7 @@ config MK8
config MCRUSOE
bool "Crusoe"
depends on X86_32
- ---help---
+ help
Select this for a Transmeta Crusoe processor. Treats the processor
like a 586 with TSC, and sets some GCC optimization flags (like a
Pentium Pro with no alignment requirements).
@@ -182,13 +190,13 @@ config MCRUSOE
config MEFFICEON
bool "Efficeon"
depends on X86_32
- ---help---
+ help
Select this for a Transmeta Efficeon processor.
config MWINCHIPC6
bool "Winchip-C6"
depends on X86_32
- ---help---
+ help
Select this for an IDT Winchip C6 chip. Linux and GCC
treat this chip as a 586TSC with some extended instructions
and alignment requirements.
@@ -196,29 +204,37 @@ config MWINCHIPC6
config MWINCHIP3D
bool "Winchip-2/Winchip-2A/Winchip-3"
depends on X86_32
- ---help---
+ help
Select this for an IDT Winchip-2, 2A or 3. Linux and GCC
treat this chip as a 586TSC with some extended instructions
and alignment requirements. Also enable out of order memory
stores for this CPU, which can increase performance of some
operations.
+config MELAN
+ bool "AMD Elan"
+ depends on X86_32
+ help
+ Select this for an AMD Elan processor.
+
+ Do not use this option for K6/Athlon/Opteron processors!
+
config MGEODEGX1
bool "GeodeGX1"
depends on X86_32
- ---help---
+ help
Select this for a Geode GX1 (Cyrix MediaGX) chip.
config MGEODE_LX
bool "Geode GX/LX"
depends on X86_32
- ---help---
+ help
Select this for AMD Geode GX and LX processors.
config MCYRIXIII
bool "CyrixIII/VIA-C3"
depends on X86_32
- ---help---
+ help
Select this for a Cyrix III or C3 chip. Presently Linux and GCC
treat this chip as a generic 586. Whilst the CPU is 686 class,
it lacks the cmov extension which gcc assumes is present when
@@ -230,7 +246,7 @@ config MCYRIXIII
config MVIAC3_2
bool "VIA C3-2 (Nehemiah)"
depends on X86_32
- ---help---
+ help
Select this for a VIA C3 "Nehemiah". Selecting this enables usage
of SSE and tells gcc to treat the CPU as a 686.
Note, this kernel will not boot on older (pre model 9) C3s.
@@ -238,14 +254,14 @@ config MVIAC3_2
config MVIAC7
bool "VIA C7"
depends on X86_32
- ---help---
+ help
Select this for a VIA C7. Selecting this uses the correct cache
shift and tells gcc to treat the CPU as a 686.
config MPSC
bool "Intel P4 / older Netburst based Xeon"
depends on X86_64
- ---help---
+ help
Optimize for Intel Pentium 4, Pentium D and older Nocona/Dempsey
Xeon CPUs with Intel 64bit which is compatible with x86-64.
Note that the latest Xeons (Xeon 51xx and 53xx) are not based on the
@@ -255,7 +271,7 @@ config MPSC
config MCORE2
bool "Core 2/newer Xeon"
- ---help---
+ help
Select this for Intel Core 2 and newer Core 2 Xeons (Xeon 51xx and
53xx) CPUs. You can distinguish newer from older Xeons by the CPU
@@ -264,7 +280,7 @@ config MCORE2
config MATOM
bool "Intel Atom"
- ---help---
+ help
Select this for the Intel Atom platform. Intel Atom CPUs have an
in-order pipelining architecture and thus can benefit from
@@ -274,7 +290,7 @@ config MATOM
config GENERIC_CPU
bool "Generic-x86-64"
depends on X86_64
- ---help---
+ help
Generic x86-64 CPU.
Run equally well on all x86-64 CPUs.
@@ -283,7 +299,7 @@ endchoice
config X86_GENERIC
bool "Generic x86 support"
depends on X86_32
- ---help---
+ help
Instead of just including optimizations for the selected
x86 variant (e.g. PII, Crusoe or Athlon), include some more
generic optimizations as well. This will make the kernel
@@ -292,73 +308,31 @@ config X86_GENERIC
This is really intended for distributors who need more
generic optimizations.
-endif
-
#
# Define implied options from the CPU selection here
config X86_INTERNODE_CACHE_SHIFT
int
default "12" if X86_VSMP
- default "7" if NUMA
default X86_L1_CACHE_SHIFT
-config X86_CMPXCHG
- def_bool X86_64 || (X86_32 && !M386)
-
-config CMPXCHG_LOCAL
- def_bool X86_64 || (X86_32 && !M386)
-
config X86_L1_CACHE_SHIFT
int
default "7" if MPENTIUM4 || MPSC
default "6" if MK7 || MK8 || MPENTIUMM || MCORE2 || MATOM || MVIAC7 || X86_GENERIC || GENERIC_CPU
- default "4" if X86_ELAN || M486 || M386 || MGEODEGX1
+ default "4" if MELAN || M486SX || M486 || MGEODEGX1
default "5" if MWINCHIP3D || MWINCHIPC6 || MCRUSOE || MEFFICEON || MCYRIXIII || MK6 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || MVIAC3_2 || MGEODE_LX
-config X86_XADD
- def_bool y
- depends on X86_64 || !M386
-
-config X86_PPRO_FENCE
- bool "PentiumPro memory ordering errata workaround"
- depends on M686 || M586MMX || M586TSC || M586 || M486 || M386 || MGEODEGX1
- ---help---
- Old PentiumPro multiprocessor systems had errata that could cause
- memory operations to violate the x86 ordering standard in rare cases.
- Enabling this option will attempt to work around some (but not all)
- occurrences of this problem, at the cost of much heavier spinlock and
- memory barrier operations.
-
- If unsure, say n here. Even distro kernels should think twice before
- enabling this: there are few systems, and an unlikely bug.
-
config X86_F00F_BUG
def_bool y
- depends on M586MMX || M586TSC || M586 || M486 || M386
+ depends on M586MMX || M586TSC || M586 || M486SX || M486
config X86_INVD_BUG
def_bool y
- depends on M486 || M386
-
-config X86_WP_WORKS_OK
- def_bool y
- depends on !M386
-
-config X86_INVLPG
- def_bool y
- depends on X86_32 && !M386
-
-config X86_BSWAP
- def_bool y
- depends on X86_32 && !M386
-
-config X86_POPAD_OK
- def_bool y
- depends on X86_32 && !M386
+ depends on M486SX || M486
config X86_ALIGNMENT_16
def_bool y
- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1
+ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486SX || M486 || MVIAC3_2 || MGEODEGX1
config X86_INTEL_USERCOPY
def_bool y
@@ -368,14 +342,6 @@ config X86_USE_PPRO_CHECKSUM
def_bool y
depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MK8 || MVIAC3_2 || MVIAC7 || MEFFICEON || MGEODE_LX || MCORE2 || MATOM
-config X86_USE_3DNOW
- def_bool y
- depends on (MCYRIXIII || MK7 || MGEODE_LX) && !UML
-
-config X86_OOSTORE
- def_bool y
- depends on (MWINCHIP3D || MWINCHIPC6) && MTRR
-
#
# P6_NOPs are a relatively minor optimization that require a family >=
# 6 processor, except that it is broken on certain VIA chips.
@@ -394,11 +360,11 @@ config X86_P6_NOP
config X86_TSC
def_bool y
- depends on ((MWINCHIP3D || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2 || MATOM) && !X86_NUMAQ) || X86_64
+ depends on (MWINCHIP3D || MCRUSOE || MEFFICEON || MCYRIXIII || MK7 || MK6 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || MK8 || MVIAC3_2 || MVIAC7 || MGEODEGX1 || MGEODE_LX || MCORE2 || MATOM) || X86_64
config X86_CMPXCHG64
def_bool y
- depends on X86_PAE || X86_64 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MATOM
+ depends on X86_PAE || X86_64 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || M586TSC || M586MMX || MATOM || MGEODE_LX || MGEODEGX1 || MK6 || MK7 || MK8
# this should be set for all -march=.. options where the compiler
# generates cmov.
@@ -409,25 +375,32 @@ config X86_CMOV
config X86_MINIMUM_CPU_FAMILY
int
default "64" if X86_64
- default "6" if X86_32 && X86_P6_NOP
+ default "6" if X86_32 && (MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MEFFICEON || MATOM || MCRUSOE || MCORE2 || MK7 || MK8)
default "5" if X86_32 && X86_CMPXCHG64
- default "4" if X86_32 && (X86_XADD || X86_CMPXCHG || X86_BSWAP || X86_WP_WORKS_OK)
- default "3"
+ default "4"
config X86_DEBUGCTLMSR
def_bool y
- depends on !(MK6 || MWINCHIPC6 || MWINCHIP3D || MCYRIXIII || M586MMX || M586TSC || M586 || M486 || M386) && !UML
+ depends on !(MK6 || MWINCHIPC6 || MWINCHIP3D || MCYRIXIII || M586MMX || M586TSC || M586 || M486SX || M486) && !UML
+
+config IA32_FEAT_CTL
+ def_bool y
+ depends on CPU_SUP_INTEL || CPU_SUP_CENTAUR || CPU_SUP_ZHAOXIN
+
+config X86_VMX_FEATURE_NAMES
+ def_bool y
+ depends on IA32_FEAT_CTL && X86_FEATURE_NAMES
menuconfig PROCESSOR_SELECT
bool "Supported processor vendors" if EXPERT
- ---help---
+ help
This lets you choose what x86 vendor support code your kernel
will include.
config CPU_SUP_INTEL
default y
bool "Support Intel processors" if PROCESSOR_SELECT
- ---help---
+ help
This enables detection, tunings and quirks for Intel processors
You need this enabled if you want your kernel to run on an
@@ -440,8 +413,8 @@ config CPU_SUP_INTEL
config CPU_SUP_CYRIX_32
default y
bool "Support Cyrix processors" if PROCESSOR_SELECT
- depends on !64BIT
- ---help---
+ depends on M486SX || M486 || M586 || M586TSC || M586MMX || (EXPERT && !64BIT)
+ help
This enables detection, tunings and quirks for Cyrix processors
You need this enabled if you want your kernel to run on a
@@ -454,7 +427,7 @@ config CPU_SUP_CYRIX_32
config CPU_SUP_AMD
default y
bool "Support AMD processors" if PROCESSOR_SELECT
- ---help---
+ help
This enables detection, tunings and quirks for AMD processors
You need this enabled if you want your kernel to run on an
@@ -464,10 +437,24 @@ config CPU_SUP_AMD
If unsure, say N.
+config CPU_SUP_HYGON
+ default y
+ bool "Support Hygon processors" if PROCESSOR_SELECT
+ select CPU_SUP_AMD
+ help
+ This enables detection, tunings and quirks for Hygon processors
+
+ You need this enabled if you want your kernel to run on an
+ Hygon CPU. Disabling this option on other types of CPUs
+ makes the kernel a tiny bit smaller. Disabling it on an Hygon
+ CPU might render the kernel unbootable.
+
+ If unsure, say N.
+
config CPU_SUP_CENTAUR
default y
bool "Support Centaur processors" if PROCESSOR_SELECT
- ---help---
+ help
This enables detection, tunings and quirks for Centaur processors
You need this enabled if you want your kernel to run on a
@@ -481,7 +468,7 @@ config CPU_SUP_TRANSMETA_32
default y
bool "Support Transmeta processors" if PROCESSOR_SELECT
depends on !64BIT
- ---help---
+ help
This enables detection, tunings and quirks for Transmeta processors
You need this enabled if you want your kernel to run on a
@@ -494,8 +481,8 @@ config CPU_SUP_TRANSMETA_32
config CPU_SUP_UMC_32
default y
bool "Support UMC processors" if PROCESSOR_SELECT
- depends on !64BIT
- ---help---
+ depends on M486SX || M486 || (EXPERT && !64BIT)
+ help
This enables detection, tunings and quirks for UMC processors
You need this enabled if you want your kernel to run on a
@@ -504,3 +491,29 @@ config CPU_SUP_UMC_32
CPU might render the kernel unbootable.
If unsure, say N.
+
+config CPU_SUP_ZHAOXIN
+ default y
+ bool "Support Zhaoxin processors" if PROCESSOR_SELECT
+ help
+ This enables detection, tunings and quirks for Zhaoxin processors
+
+ You need this enabled if you want your kernel to run on a
+ Zhaoxin CPU. Disabling this option on other types of CPUs
+ makes the kernel a tiny bit smaller. Disabling it on a Zhaoxin
+ CPU might render the kernel unbootable.
+
+ If unsure, say N.
+
+config CPU_SUP_VORTEX_32
+ default y
+ bool "Support Vortex processors" if PROCESSOR_SELECT
+ depends on X86_32
+ help
+ This enables detection, tunings and quirks for Vortex processors
+
+ You need this enabled if you want your kernel to run on a
+ Vortex CPU. Disabling this option on other types of CPUs
+ makes the kernel a tiny bit smaller.
+
+ If unsure, say N.
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 615e18810f48..c5d614d28a75 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -1,31 +1,12 @@
-menu "Kernel hacking"
+# SPDX-License-Identifier: GPL-2.0
-config TRACE_IRQFLAGS_SUPPORT
- def_bool y
-
-source "lib/Kconfig.debug"
-
-config STRICT_DEVMEM
- bool "Filter access to /dev/mem"
- ---help---
- If this option is disabled, you allow userspace (root) access to all
- of memory, including kernel and userspace memory. Accidental
- access to this is obviously disastrous, but specific access can
- be used by people debugging the kernel. Note that with PAT support
- enabled, even in this case there are restrictions on /dev/mem
- use due to the cache aliasing requirements.
-
- If this option is switched on, the /dev/mem file only allows
- userspace access to PCI space and the BIOS code and data regions.
- This is sufficient for dosemu and X and all common users of
- /dev/mem.
-
- If in doubt, say Y.
+config EARLY_PRINTK_USB
+ bool
config X86_VERBOSE_BOOTUP
bool "Enable verbose x86 bootup info messages"
default y
- ---help---
+ help
Enables the informational output from the decompression stage
(e.g. bzImage) of the boot. If you disable this you will still
see errors. Disable this if you want silent bootup.
@@ -33,124 +14,81 @@ config X86_VERBOSE_BOOTUP
config EARLY_PRINTK
bool "Early printk" if EXPERT
default y
- ---help---
+ help
Write kernel log output directly into the VGA buffer or to a serial
port.
This is useful for kernel debugging when your machine crashes very
early before the console code is initialized. For normal operation
it is not recommended because it looks ugly and doesn't cooperate
- with klogd/syslogd or the X server. You should normally N here,
+ with klogd/syslogd or the X server. You should normally say N here,
unless you want to debug such a crash.
-config EARLY_PRINTK_MRST
- bool "Early printk for MRST platform support"
- depends on EARLY_PRINTK && X86_MRST
-
config EARLY_PRINTK_DBGP
bool "Early printk via EHCI debug port"
depends on EARLY_PRINTK && PCI
- ---help---
+ select EARLY_PRINTK_USB
+ help
Write kernel log output directly into the EHCI debug port.
This is useful for kernel debugging when your machine crashes very
early before the console code is initialized. For normal operation
it is not recommended because it looks ugly and doesn't cooperate
- with klogd/syslogd or the X server. You should normally N here,
+ with klogd/syslogd or the X server. You should normally say N here,
unless you want to debug such a crash. You need usb debug device.
-config DEBUG_STACKOVERFLOW
- bool "Check for stack overflows"
- depends on DEBUG_KERNEL
- ---help---
- This option will cause messages to be printed if free stack space
- drops below a certain limit.
-
-config DEBUG_STACK_USAGE
- bool "Stack utilization instrumentation"
+config EARLY_PRINTK_USB_XDBC
+ bool "Early printk via the xHCI debug port"
+ depends on EARLY_PRINTK && PCI
+ select EARLY_PRINTK_USB
+ help
+ Write kernel log output directly into the xHCI debug port.
+
+ One use for this feature is kernel debugging, for example when your
+ machine crashes very early before the regular console code is
+ initialized. Other uses include simpler, lockless logging instead of
+ a full-blown printk console driver + klogd.
+
+ For normal production environments this is normally not recommended,
+ because it doesn't feed events into klogd/syslogd and doesn't try to
+ print anything on the screen.
+
+ You should normally say N here, unless you want to debug early
+ crashes or need a very simple printk logging facility.
+
+config EFI_PGT_DUMP
+ bool "Dump the EFI pagetable"
+ depends on EFI
+ select PTDUMP_CORE
+ help
+ Enable this if you want to dump the EFI page table before
+ enabling virtual mode. This can be used to debug miscellaneous
+ issues with the mapping of the EFI runtime regions into that
+ table.
+
+config DEBUG_TLBFLUSH
+ bool "Set upper limit of TLB entries to flush one-by-one"
depends on DEBUG_KERNEL
- ---help---
- Enables the display of the minimum amount of free stack which each
- task has ever had available in the sysrq-T and sysrq-P debug output.
+ help
+ X86-only for now.
- This option will slow down process creation somewhat.
-
-config DEBUG_PER_CPU_MAPS
- bool "Debug access to per_cpu maps"
- depends on DEBUG_KERNEL
- depends on SMP
- ---help---
- Say Y to verify that the per_cpu map being accessed has
- been setup. Adds a fair amount of code to kernel memory
- and decreases performance.
+ This option allows the user to tune the amount of TLB entries the
+ kernel flushes one-by-one instead of doing a full TLB flush. In
+ certain situations, the former is cheaper. This is controlled by the
+ tlb_flushall_shift knob under /sys/kernel/debug/x86. If you set it
+ to -1, the code flushes the whole TLB unconditionally. Otherwise,
+ for positive values of it, the kernel will use single TLB entry
+ invalidating instructions according to the following formula:
- Say N if unsure.
+ flush_entries <= active_tlb_entries / 2^tlb_flushall_shift
-config X86_PTDUMP
- bool "Export kernel pagetable layout to userspace via debugfs"
- depends on DEBUG_KERNEL
- select DEBUG_FS
- ---help---
- Say Y here if you want to show the kernel pagetable layout in a
- debugfs file. This information is only useful for kernel developers
- who are working in architecture specific areas of the kernel.
- It is probably not a good idea to enable this feature in a production
- kernel.
- If in doubt, say "N"
-
-config DEBUG_RODATA
- bool "Write protect kernel read-only data structures"
- default y
- depends on DEBUG_KERNEL
- ---help---
- Mark the kernel read-only data as write-protected in the pagetables,
- in order to catch accidental (and incorrect) writes to such const
- data. This is recommended so that we can catch kernel bugs sooner.
- If in doubt, say "Y".
-
-config DEBUG_RODATA_TEST
- bool "Testcase for the DEBUG_RODATA feature"
- depends on DEBUG_RODATA
- default y
- ---help---
- This option enables a testcase for the DEBUG_RODATA
- feature as well as for the change_page_attr() infrastructure.
- If in doubt, say "N"
-
-config DEBUG_SET_MODULE_RONX
- bool "Set loadable kernel module data as NX and text as RO"
- depends on MODULES
- ---help---
- This option helps catch unintended modifications to loadable
- kernel module's text and read-only data. It also prevents execution
- of module data. Such protection may interfere with run-time code
- patching and dynamic kernel tracing - and they might also protect
- against certain classes of kernel exploits.
If in doubt, say "N".
-config DEBUG_NX_TEST
- tristate "Testcase for the NX non-executable stack feature"
- depends on DEBUG_KERNEL && m
- ---help---
- This option enables a testcase for the CPU NX capability
- and the software setup of this feature.
- If in doubt, say "N"
-
-config DOUBLEFAULT
- default y
- bool "Enable doublefault exception handler" if EXPERT
- depends on X86_32
- ---help---
- This option allows trapping of rare doublefault exceptions that
- would otherwise cause a system to silently reboot. Disabling this
- option saves about 4k and might cause you much additional grey
- hair.
-
config IOMMU_DEBUG
bool "Enable IOMMU debugging"
depends on GART_IOMMU && DEBUG_KERNEL
depends on X86_64
- ---help---
+ help
Force the IOMMU to on even when you have less than 4GB of
memory and add debugging code. On overflow always panic. And
allow to enable IOMMU leak tracing. Can be disabled at boot
@@ -159,21 +97,13 @@ config IOMMU_DEBUG
code. When you use it make sure you have a big enough
IOMMU/AGP aperture. Most of the options enabled by this can
be set more finegrained using the iommu= command line
- options. See Documentation/x86_64/boot-options.txt for more
+ options. See Documentation/arch/x86/x86_64/boot-options.rst for more
details.
-config IOMMU_STRESS
- bool "Enable IOMMU stress-test mode"
- ---help---
- This option disables various optimizations in IOMMU related
- code to do real stress testing of the IOMMU code. This option
- will cause a performance drop and should only be enabled for
- testing.
-
config IOMMU_LEAK
bool "IOMMU leak tracing"
depends on IOMMU_DEBUG && DMA_API_DEBUG
- ---help---
+ help
Add a simple leak tracer to the IOMMU code. This is useful when you
are debugging a buggy device driver that leaks IOMMU mappings.
@@ -182,32 +112,13 @@ config HAVE_MMIOTRACE_SUPPORT
config X86_DECODER_SELFTEST
bool "x86 instruction decoder selftest"
- depends on DEBUG_KERNEL && KPROBES
- ---help---
- Perform x86 instruction decoder selftests at build time.
- This option is useful for checking the sanity of x86 instruction
- decoder code.
- If unsure, say "N".
-
-#
-# IO delay types:
-#
-
-config IO_DELAY_TYPE_0X80
- int
- default "0"
-
-config IO_DELAY_TYPE_0XED
- int
- default "1"
-
-config IO_DELAY_TYPE_UDELAY
- int
- default "2"
-
-config IO_DELAY_TYPE_NONE
- int
- default "3"
+ depends on DEBUG_KERNEL && INSTRUCTION_DECODER
+ depends on !COMPILE_TEST
+ help
+ Perform x86 instruction decoder selftests at build time.
+ This option is useful for checking the sanity of x86 instruction
+ decoder code.
+ If unsure, say "N".
choice
prompt "IO delay type"
@@ -215,93 +126,152 @@ choice
config IO_DELAY_0X80
bool "port 0x80 based port-IO delay [recommended]"
- ---help---
+ help
This is the traditional Linux IO delay used for in/out_p.
It is the most tested hence safest selection here.
config IO_DELAY_0XED
bool "port 0xed based port-IO delay"
- ---help---
+ help
Use port 0xed as the IO delay. This frees up port 0x80 which is
often used as a hardware-debug port.
config IO_DELAY_UDELAY
bool "udelay based port-IO delay"
- ---help---
+ help
Use udelay(2) as the IO delay method. This provides the delay
while not having any side-effect on the IO port space.
config IO_DELAY_NONE
bool "no port-IO delay"
- ---help---
+ help
No port-IO delay. Will break on old boxes that require port-IO
delay for certain operations. Should work on most new machines.
endchoice
-if IO_DELAY_0X80
-config DEFAULT_IO_DELAY_TYPE
- int
- default IO_DELAY_TYPE_0X80
-endif
-
-if IO_DELAY_0XED
-config DEFAULT_IO_DELAY_TYPE
- int
- default IO_DELAY_TYPE_0XED
-endif
-
-if IO_DELAY_UDELAY
-config DEFAULT_IO_DELAY_TYPE
- int
- default IO_DELAY_TYPE_UDELAY
-endif
-
-if IO_DELAY_NONE
-config DEFAULT_IO_DELAY_TYPE
- int
- default IO_DELAY_TYPE_NONE
-endif
-
config DEBUG_BOOT_PARAMS
bool "Debug boot parameters"
depends on DEBUG_KERNEL
depends on DEBUG_FS
- ---help---
+ help
This option will cause struct boot_params to be exported via debugfs.
config CPA_DEBUG
bool "CPA self-test code"
depends on DEBUG_KERNEL
- ---help---
+ help
Do change_page_attr() self-tests every 30 seconds.
-config OPTIMIZE_INLINING
- bool "Allow gcc to uninline functions marked 'inline'"
- ---help---
- This option determines if the kernel forces gcc to inline the functions
- developers have marked 'inline'. Doing so takes away freedom from gcc to
- do what it thinks is best, which is desirable for the gcc 3.x series of
- compilers. The gcc 4.x series have a rewritten inlining algorithm and
- enabling this option will generate a smaller kernel there. Hopefully
- this algorithm is so good that allowing gcc 4.x and above to make the
- decision will become the default in the future. Until then this option
- is there to test gcc for this.
+config DEBUG_ENTRY
+ bool "Debug low-level entry code"
+ depends on DEBUG_KERNEL
+ help
+ This option enables sanity checks in x86's low-level entry code.
+ Some of these sanity checks may slow down kernel entries and
+ exits or otherwise impact performance.
If unsure, say N.
-config DEBUG_STRICT_USER_COPY_CHECKS
- bool "Strict copy size checks"
- depends on DEBUG_KERNEL && !TRACE_BRANCH_PROFILING
- ---help---
- Enabling this option turns a certain set of sanity checks for user
- copy operations into compile time failures.
+config DEBUG_NMI_SELFTEST
+ bool "NMI Selftest"
+ depends on DEBUG_KERNEL && X86_LOCAL_APIC
+ help
+ Enabling this option turns on a quick NMI selftest to verify
+ that the NMI behaves correctly.
- The copy_from_user() etc checks are there to help test if there
- are sufficient security checks on the length argument of
- the copy operation, by having gcc prove that the argument is
- within bounds.
+ This might help diagnose strange hangs that rely on NMI to
+ function properly.
- If unsure, or if you run an older (pre 4.4) gcc, say N.
+ If unsure, say N.
+
+config DEBUG_IMR_SELFTEST
+ bool "Isolated Memory Region self test"
+ depends on INTEL_IMR
+ help
+ This option enables automated sanity testing of the IMR code.
+ Some simple tests are run to verify IMR bounds checking, alignment
+ and overlapping. This option is really only useful if you are
+ debugging an IMR memory map or are modifying the IMR code and want to
+ test your changes.
+
+ If unsure say N here.
+
+config X86_DEBUG_FPU
+ bool "Debug the x86 FPU code"
+ depends on DEBUG_KERNEL
+ default y
+ help
+ If this option is enabled then there will be extra sanity
+ checks and (boot time) debug printouts added to the kernel.
+ This debugging adds some small amount of runtime overhead
+ to the kernel.
+
+ If unsure, say N.
+
+config PUNIT_ATOM_DEBUG
+ tristate "ATOM Punit debug driver"
+ depends on PCI
+ select DEBUG_FS
+ select IOSF_MBI
+ help
+ This is a debug driver, which gets the power states
+ of all Punit North Complex devices. The power states of
+ each device is exposed as part of the debugfs interface.
+ The current power state can be read from
+ /sys/kernel/debug/punit_atom/dev_power_state
+
+choice
+ prompt "Choose kernel unwinder"
+ default UNWINDER_ORC if X86_64
+ default UNWINDER_FRAME_POINTER if X86_32
+ help
+ This determines which method will be used for unwinding kernel stack
+ traces for panics, oopses, bugs, warnings, perf, /proc/<pid>/stack,
+ livepatch, lockdep, and more.
+
+config UNWINDER_ORC
+ bool "ORC unwinder"
+ depends on X86_64
+ select OBJTOOL
+ help
+ This option enables the ORC (Oops Rewind Capability) unwinder for
+ unwinding kernel stack traces. It uses a custom data format which is
+ a simplified version of the DWARF Call Frame Information standard.
+
+ This unwinder is more accurate across interrupt entry frames than the
+ frame pointer unwinder. It also enables a 5-10% performance
+ improvement across the entire kernel compared to frame pointers.
+
+ Enabling this option will increase the kernel's runtime memory usage
+ by roughly 2-4MB, depending on your kernel config.
+
+config UNWINDER_FRAME_POINTER
+ bool "Frame pointer unwinder"
+ select FRAME_POINTER
+ help
+ This option enables the frame pointer unwinder for unwinding kernel
+ stack traces.
+
+ The unwinder itself is fast and it uses less RAM than the ORC
+ unwinder, but the kernel text size will grow by ~3% and the kernel's
+ overall performance will degrade by roughly 5-10%.
+
+config UNWINDER_GUESS
+ bool "Guess unwinder"
+ depends on EXPERT
+ depends on !STACKDEPOT
+ help
+ This option enables the "guess" unwinder for unwinding kernel stack
+ traces. It scans the stack and reports every kernel text address it
+ finds. Some of the addresses it reports may be incorrect.
+
+ While this option often produces false positives, it can still be
+ useful in many cases. Unlike the other unwinders, it has no runtime
+ overhead.
+
+endchoice
-endmenu
+config FRAME_POINTER
+ depends on !UNWINDER_ORC && !UNWINDER_GUESS
+ bool
diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index b02e509072a7..b39975977c03 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -1,39 +1,108 @@
+# SPDX-License-Identifier: GPL-2.0
# Unified Makefile for i386 and x86_64
# select defconfig based on actual architecture
ifeq ($(ARCH),x86)
+ ifeq ($(shell uname -m | sed -e 's/i.86/i386/'),i386)
KBUILD_DEFCONFIG := i386_defconfig
+ else
+ KBUILD_DEFCONFIG := x86_64_defconfig
+ endif
else
KBUILD_DEFCONFIG := $(ARCH)_defconfig
endif
+ifdef CONFIG_CC_IS_GCC
+RETPOLINE_CFLAGS := $(call cc-option,-mindirect-branch=thunk-extern -mindirect-branch-register)
+RETPOLINE_VDSO_CFLAGS := $(call cc-option,-mindirect-branch=thunk-inline -mindirect-branch-register)
+endif
+ifdef CONFIG_CC_IS_CLANG
+RETPOLINE_CFLAGS := -mretpoline-external-thunk
+RETPOLINE_VDSO_CFLAGS := -mretpoline
+endif
+RETPOLINE_CFLAGS += $(call cc-option,-mindirect-branch-cs-prefix)
+
+ifdef CONFIG_RETHUNK
+RETHUNK_CFLAGS := -mfunction-return=thunk-extern
+RETPOLINE_CFLAGS += $(RETHUNK_CFLAGS)
+endif
+
+export RETHUNK_CFLAGS
+export RETPOLINE_CFLAGS
+export RETPOLINE_VDSO_CFLAGS
+
+# For gcc stack alignment is specified with -mpreferred-stack-boundary,
+# clang has the option -mstack-alignment for that purpose.
+ifneq ($(call cc-option, -mpreferred-stack-boundary=4),)
+ cc_stack_align4 := -mpreferred-stack-boundary=2
+ cc_stack_align8 := -mpreferred-stack-boundary=3
+else ifneq ($(call cc-option, -mstack-alignment=16),)
+ cc_stack_align4 := -mstack-alignment=4
+ cc_stack_align8 := -mstack-alignment=8
+endif
+
+# How to compile the 16-bit code. Note we always compile for -march=i386;
+# that way we can complain to the user if the CPU is insufficient.
+REALMODE_CFLAGS := -m16 -g -Os -DDISABLE_BRANCH_PROFILING -D__DISABLE_EXPORTS \
+ -Wall -Wstrict-prototypes -march=i386 -mregparm=3 \
+ -fno-strict-aliasing -fomit-frame-pointer -fno-pic \
+ -mno-mmx -mno-sse $(call cc-option,-fcf-protection=none)
+
+REALMODE_CFLAGS += -ffreestanding
+REALMODE_CFLAGS += -fno-stack-protector
+REALMODE_CFLAGS += -Wno-address-of-packed-member
+REALMODE_CFLAGS += $(cc_stack_align4)
+REALMODE_CFLAGS += $(CLANG_FLAGS)
+export REALMODE_CFLAGS
+
# BITS is used as extension for files which are available in a 32 bit
# and a 64 bit version to simplify shared Makefiles.
# e.g.: obj-y += foo_$(BITS).o
export BITS
+#
+# Prevent GCC from generating any FP code by mistake.
+#
+# This must happen before we try the -mpreferred-stack-boundary, see:
+#
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53383
+#
+KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx
+KBUILD_RUSTFLAGS += -Ctarget-feature=-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2
+
+ifeq ($(CONFIG_X86_KERNEL_IBT),y)
+#
+# Kernel IBT has S_CET.NOTRACK_EN=0, as such the compilers must not generate
+# NOTRACK prefixes. Current generation compilers unconditionally employ NOTRACK
+# for jump-tables, as such, disable jump-tables for now.
+#
+# (jump-tables are implicitly disabled by RETPOLINE)
+#
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104816
+#
+KBUILD_CFLAGS += $(call cc-option,-fcf-protection=branch -fno-jump-tables)
+else
+KBUILD_CFLAGS += $(call cc-option,-fcf-protection=none)
+endif
+
ifeq ($(CONFIG_X86_32),y)
BITS := 32
UTS_MACHINE := i386
CHECKFLAGS += -D__i386__
- biarch := $(call cc-option,-m32)
- KBUILD_AFLAGS += $(biarch)
- KBUILD_CFLAGS += $(biarch)
-
- ifdef CONFIG_RELOCATABLE
- LDFLAGS_vmlinux := --emit-relocs
- endif
+ KBUILD_AFLAGS += -m32
+ KBUILD_CFLAGS += -m32
KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
- # prevent gcc from keeping the stack 16 byte aligned
- KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2)
+ # Never want PIC in a 32-bit kernel, prevent breakage with GCC built
+ # with nonstandard options
+ KBUILD_CFLAGS += -fno-pic
- # Disable unit-at-a-time mode on pre-gcc-4.0 compilers, it makes gcc use
- # a lot more stack due to the lack of sharing of stacklots:
- KBUILD_CFLAGS += $(call cc-ifversion, -lt, 0400, \
- $(call cc-option,-fno-unit-at-a-time))
+ # Align the stack to the register width instead of using the default
+ # alignment of 16 bytes. This reduces stack usage and the number of
+ # alignment instructions.
+ KBUILD_CFLAGS += $(cc_stack_align4)
# CPU-specific tuning. Anything which can be shared with UML should go here.
include $(srctree)/arch/x86/Makefile_32.cpu
@@ -41,102 +110,152 @@ ifeq ($(CONFIG_X86_32),y)
# temporary until string.h is fixed
KBUILD_CFLAGS += -ffreestanding
+
+ ifeq ($(CONFIG_STACKPROTECTOR),y)
+ ifeq ($(CONFIG_SMP),y)
+ KBUILD_CFLAGS += -mstack-protector-guard-reg=fs -mstack-protector-guard-symbol=__stack_chk_guard
+ else
+ KBUILD_CFLAGS += -mstack-protector-guard=global
+ endif
+ endif
else
BITS := 64
UTS_MACHINE := x86_64
- CHECKFLAGS += -D__x86_64__ -m64
+ CHECKFLAGS += -D__x86_64__
KBUILD_AFLAGS += -m64
KBUILD_CFLAGS += -m64
+ # Align jump targets to 1 byte, not the default 16 bytes:
+ KBUILD_CFLAGS += $(call cc-option,-falign-jumps=1)
+
+ # Pack loops tightly as well:
+ KBUILD_CFLAGS += $(call cc-option,-falign-loops=1)
+
+ # Don't autogenerate traditional x87 instructions
+ KBUILD_CFLAGS += -mno-80387
+ KBUILD_CFLAGS += $(call cc-option,-mno-fp-ret-in-387)
+
+ # By default gcc and clang use a stack alignment of 16 bytes for x86.
+ # However the standard kernel entry on x86-64 leaves the stack on an
+ # 8-byte boundary. If the compiler isn't informed about the actual
+ # alignment it will generate extra alignment instructions for the
+ # default alignment which keep the stack *mis*aligned.
+ # Furthermore an alignment to the register width reduces stack usage
+ # and the number of alignment instructions.
+ KBUILD_CFLAGS += $(cc_stack_align8)
+
+ # Use -mskip-rax-setup if supported.
+ KBUILD_CFLAGS += $(call cc-option,-mskip-rax-setup)
+
# FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
- cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
- cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona)
-
- cflags-$(CONFIG_MCORE2) += \
- $(call cc-option,-march=core2,$(call cc-option,-mtune=generic))
- cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom) \
- $(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
- cflags-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=generic)
+ cflags-$(CONFIG_MK8) += -march=k8
+ cflags-$(CONFIG_MPSC) += -march=nocona
+ cflags-$(CONFIG_MCORE2) += -march=core2
+ cflags-$(CONFIG_MATOM) += -march=atom
+ cflags-$(CONFIG_GENERIC_CPU) += -mtune=generic
KBUILD_CFLAGS += $(cflags-y)
+ rustflags-$(CONFIG_MK8) += -Ctarget-cpu=k8
+ rustflags-$(CONFIG_MPSC) += -Ctarget-cpu=nocona
+ rustflags-$(CONFIG_MCORE2) += -Ctarget-cpu=core2
+ rustflags-$(CONFIG_MATOM) += -Ctarget-cpu=atom
+ rustflags-$(CONFIG_GENERIC_CPU) += -Ztune-cpu=generic
+ KBUILD_RUSTFLAGS += $(rustflags-y)
+
KBUILD_CFLAGS += -mno-red-zone
KBUILD_CFLAGS += -mcmodel=kernel
+ KBUILD_RUSTFLAGS += -Cno-redzone=y
+ KBUILD_RUSTFLAGS += -Ccode-model=kernel
+endif
- # -funit-at-a-time shrinks the kernel .text considerably
- # unfortunately it makes reading oopses harder.
- KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
-
- # this works around some issues with generating unwind tables in older gccs
- # newer gccs do it by default
- KBUILD_CFLAGS += -maccumulate-outgoing-args
+#
+# If the function graph tracer is used with mcount instead of fentry,
+# '-maccumulate-outgoing-args' is needed to prevent a GCC bug
+# (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42109)
+#
+ifdef CONFIG_FUNCTION_GRAPH_TRACER
+ ifndef CONFIG_HAVE_FENTRY
+ ACCUMULATE_OUTGOING_ARGS := 1
+ endif
endif
-ifdef CONFIG_CC_STACKPROTECTOR
- cc_has_sp := $(srctree)/scripts/gcc-x86_$(BITS)-has-stack-protector.sh
- ifeq ($(shell $(CONFIG_SHELL) $(cc_has_sp) $(CC) $(KBUILD_CPPFLAGS) $(biarch)),y)
- stackp-y := -fstack-protector
- KBUILD_CFLAGS += $(stackp-y)
- else
- $(warning stack protector enabled but no compiler support)
- endif
+ifeq ($(ACCUMULATE_OUTGOING_ARGS), 1)
+ # This compiler flag is not supported by Clang:
+ KBUILD_CFLAGS += $(call cc-option,-maccumulate-outgoing-args,)
endif
-# Don't unroll struct assignments with kmemcheck enabled
-ifeq ($(CONFIG_KMEMCHECK),y)
- KBUILD_CFLAGS += $(call cc-option,-fno-builtin-memcpy)
+# Workaround for a gcc prelease that unfortunately was shipped in a suse release
+KBUILD_CFLAGS += -Wno-sign-compare
+#
+KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
+
+# Avoid indirect branches in kernel to deal with Spectre
+ifdef CONFIG_RETPOLINE
+ KBUILD_CFLAGS += $(RETPOLINE_CFLAGS)
+ # Additionally, avoid generating expensive indirect jumps which
+ # are subject to retpolines for small number of switch cases.
+ # clang turns off jump table generation by default when under
+ # retpoline builds, however, gcc does not for x86. This has
+ # only been fixed starting from gcc stable version 8.4.0 and
+ # onwards, but not for older ones. See gcc bug #86952.
+ ifndef CONFIG_CC_IS_CLANG
+ KBUILD_CFLAGS += -fno-jump-tables
+ endif
endif
-# Stackpointer is addressed different for 32 bit and 64 bit x86
-sp-$(CONFIG_X86_32) := esp
-sp-$(CONFIG_X86_64) := rsp
+ifdef CONFIG_SLS
+ KBUILD_CFLAGS += -mharden-sls=all
+endif
-# do binutils support CFI?
-cfi := $(call as-instr,.cfi_startproc\n.cfi_rel_offset $(sp-y)$(comma)0\n.cfi_endproc,-DCONFIG_AS_CFI=1)
-# is .cfi_signal_frame supported too?
-cfi-sigframe := $(call as-instr,.cfi_startproc\n.cfi_signal_frame\n.cfi_endproc,-DCONFIG_AS_CFI_SIGNAL_FRAME=1)
-cfi-sections := $(call as-instr,.cfi_sections .debug_frame,-DCONFIG_AS_CFI_SECTIONS=1)
+ifdef CONFIG_CALL_PADDING
+PADDING_CFLAGS := -fpatchable-function-entry=$(CONFIG_FUNCTION_PADDING_BYTES),$(CONFIG_FUNCTION_PADDING_BYTES)
+KBUILD_CFLAGS += $(PADDING_CFLAGS)
+export PADDING_CFLAGS
+endif
-# does binutils support specific instructions?
-asinstr := $(call as-instr,fxsaveq (%rax),-DCONFIG_AS_FXSAVEQ=1)
+KBUILD_LDFLAGS += -m elf_$(UTS_MACHINE)
-KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr)
-KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr)
+ifdef CONFIG_LTO_CLANG
+ifeq ($(call test-lt, $(CONFIG_LLD_VERSION), 130000),y)
+KBUILD_LDFLAGS += -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8)
+endif
+endif
-LDFLAGS := -m elf_$(UTS_MACHINE)
+ifdef CONFIG_X86_NEED_RELOCS
+LDFLAGS_vmlinux := --emit-relocs --discard-none
+else
+LDFLAGS_vmlinux :=
+endif
-# Speed up the build
-KBUILD_CFLAGS += -pipe
-# Workaround for a gcc prelease that unfortunately was shipped in a suse release
-KBUILD_CFLAGS += -Wno-sign-compare
#
-KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
-# prevent gcc from generating any FP code by mistake
-KBUILD_CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,)
+# The 64-bit kernel must be aligned to 2MB. Pass -z max-page-size=0x200000 to
+# the linker to force 2MB page size regardless of the default page size used
+# by the linker.
+#
+ifdef CONFIG_X86_64
+LDFLAGS_vmlinux += -z max-page-size=0x200000
+endif
-KBUILD_CFLAGS += $(mflags-y)
-KBUILD_AFLAGS += $(mflags-y)
+
+archscripts: scripts_basic
+ $(Q)$(MAKE) $(build)=arch/x86/tools relocs
###
-# Kernel objects
+# Syscall table generation
-head-y := arch/x86/kernel/head_$(BITS).o
-head-y += arch/x86/kernel/head$(BITS).o
-head-y += arch/x86/kernel/head.o
-head-y += arch/x86/kernel/init_task.o
+archheaders:
+ $(Q)$(MAKE) $(build)=arch/x86/entry/syscalls all
-libs-y += arch/x86/lib/
+###
+# Kernel objects
-# See arch/x86/Kbuild for content of core part of the kernel
-core-y += arch/x86/
+libs-y += arch/x86/lib/
# drivers-y are linked after core-y
drivers-$(CONFIG_MATH_EMULATION) += arch/x86/math-emu/
drivers-$(CONFIG_PCI) += arch/x86/pci/
-# must be linked after kernel/
-drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/
-
# suspend and hibernation support
drivers-$(CONFIG_PM) += arch/x86/power/
@@ -147,7 +266,7 @@ drivers-$(CONFIG_FB) += arch/x86/video/
boot := arch/x86/boot
-BOOT_TARGETS = bzlilo bzdisk fdimage fdimage144 fdimage288 isoimage
+BOOT_TARGETS = bzdisk fdimage fdimage144 fdimage288 hdimage isoimage
PHONY += bzImage $(BOOT_TARGETS)
@@ -170,28 +289,43 @@ $(BOOT_TARGETS): vmlinux
PHONY += install
install:
- $(Q)$(MAKE) $(build)=$(boot) $@
+ $(call cmd,install)
PHONY += vdso_install
vdso_install:
- $(Q)$(MAKE) $(build)=arch/x86/vdso $@
+ $(Q)$(MAKE) $(build)=arch/x86/entry/vdso $@
+
+archprepare: checkbin
+checkbin:
+ifdef CONFIG_RETPOLINE
+ifeq ($(RETPOLINE_CFLAGS),)
+ @echo "You are building kernel with non-retpoline compiler." >&2
+ @echo "Please update your compiler." >&2
+ @false
+endif
+endif
archclean:
$(Q)rm -rf $(objtree)/arch/i386
$(Q)rm -rf $(objtree)/arch/x86_64
- $(Q)$(MAKE) $(clean)=$(boot)
define archhelp
- echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)'
- echo ' install - Install kernel using'
- echo ' (your) ~/bin/$(INSTALLKERNEL) or'
- echo ' (distribution) /sbin/$(INSTALLKERNEL) or'
- echo ' install to $$(INSTALL_PATH) and run lilo'
- echo ' fdimage - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
- echo ' fdimage144 - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
- echo ' fdimage288 - Create 2.8MB boot floppy image (arch/x86/boot/fdimage)'
- echo ' isoimage - Create a boot CD-ROM image (arch/x86/boot/image.iso)'
- echo ' bzdisk/fdimage*/isoimage also accept:'
- echo ' FDARGS="..." arguments for the booted kernel'
- echo ' FDINITRD=file initrd for the booted kernel'
+ echo '* bzImage - Compressed kernel image (arch/x86/boot/bzImage)'
+ echo ' install - Install kernel using (your) ~/bin/$(INSTALLKERNEL) or'
+ echo ' (distribution) /sbin/$(INSTALLKERNEL) or install to '
+ echo ' $$(INSTALL_PATH) and run lilo'
+ echo ''
+ echo ' fdimage - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
+ echo ' fdimage144 - Create 1.4MB boot floppy image (arch/x86/boot/fdimage)'
+ echo ' fdimage288 - Create 2.8MB boot floppy image (arch/x86/boot/fdimage)'
+ echo ' hdimage - Create a BIOS/EFI hard disk image (arch/x86/boot/hdimage)'
+ echo ' isoimage - Create a boot CD-ROM image (arch/x86/boot/image.iso)'
+ echo ' bzdisk/fdimage*/hdimage/isoimage also accept:'
+ echo ' FDARGS="..." arguments for the booted kernel'
+ echo ' FDINITRD=file initrd for the booted kernel'
+ echo ''
+ echo ' kvm_guest.config - Enable Kconfig items for running this kernel as a KVM guest'
+ echo ' xen.config - Enable Kconfig items for running this kernel as a Xen guest'
+ echo ' x86_debug.config - Enable tip tree debugging options for testing'
+
endef
diff --git a/arch/x86/Makefile.um b/arch/x86/Makefile.um
new file mode 100644
index 000000000000..2106a2bd152b
--- /dev/null
+++ b/arch/x86/Makefile.um
@@ -0,0 +1,61 @@
+# SPDX-License-Identifier: GPL-2.0
+core-y += arch/x86/crypto/
+
+#
+# Disable SSE and other FP/SIMD instructions to match normal x86
+# This is required to work around issues in older LLVM versions, but breaks
+# GCC versions < 11. See:
+# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99652
+#
+ifeq ($(CONFIG_CC_IS_CLANG),y)
+KBUILD_CFLAGS += -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx
+KBUILD_RUSTFLAGS += -Ctarget-feature=-sse,-sse2,-sse3,-ssse3,-sse4.1,-sse4.2,-avx,-avx2
+endif
+
+ifeq ($(CONFIG_X86_32),y)
+START := 0x8048000
+
+KBUILD_LDFLAGS += -m elf_i386
+ELF_ARCH := i386
+ELF_FORMAT := elf32-i386
+CHECKFLAGS += -D__i386__
+
+KBUILD_CFLAGS += $(call cc-option,-m32)
+KBUILD_AFLAGS += $(call cc-option,-m32)
+LINK-y += $(call cc-option,-m32)
+
+LDS_EXTRA := -Ui386
+export LDS_EXTRA
+
+# First of all, tune CFLAGS for the specific CPU. This actually sets cflags-y.
+include $(srctree)/arch/x86/Makefile_32.cpu
+
+# prevent gcc from keeping the stack 16 byte aligned. Taken from i386.
+cflags-y += $(call cc-option,-mpreferred-stack-boundary=2)
+
+# Prevent sprintf in nfsd from being converted to strcpy and resulting in
+# an unresolved reference.
+cflags-y += -ffreestanding
+
+KBUILD_CFLAGS += $(cflags-y)
+
+else
+
+START := 0x60000000
+
+KBUILD_CFLAGS += -fno-builtin -m64
+
+CHECKFLAGS += -m64 -D__x86_64__
+KBUILD_AFLAGS += -m64
+KBUILD_LDFLAGS += -m elf_x86_64
+KBUILD_CPPFLAGS += -m64
+
+ELF_ARCH := i386:x86-64
+ELF_FORMAT := elf64-x86-64
+
+# Not on all 64-bit distros /lib is a symlink to /lib64. PLD is an example.
+
+LINK-$(CONFIG_LD_SCRIPT_DYN_RPATH) += -Wl,-rpath,/lib64
+LINK-y += -m64
+
+endif
diff --git a/arch/x86/Makefile_32.cpu b/arch/x86/Makefile_32.cpu
index f2ee1abb1df9..94834c4b5e5e 100644
--- a/arch/x86/Makefile_32.cpu
+++ b/arch/x86/Makefile_32.cpu
@@ -1,16 +1,16 @@
+# SPDX-License-Identifier: GPL-2.0
# CPU tuning section - shared with UML.
# Must change only cflags-y (or [yn]), not CFLAGS! That makes a difference for UML.
-#-mtune exists since gcc 3.4
-HAS_MTUNE := $(call cc-option-yn, -mtune=i386)
-ifeq ($(HAS_MTUNE),y)
tune = $(call cc-option,-mtune=$(1),$(2))
+
+ifdef CONFIG_CC_IS_CLANG
+align := -falign-functions=0 $(call cc-option,-falign-jumps=0) $(call cc-option,-falign-loops=0)
else
-tune = $(call cc-option,-mcpu=$(1),$(2))
+align := -falign-functions=0 -falign-jumps=0 -falign-loops=0
endif
-align := $(cc-option-align)
-cflags-$(CONFIG_M386) += -march=i386
+cflags-$(CONFIG_M486SX) += -march=i486
cflags-$(CONFIG_M486) += -march=i486
cflags-$(CONFIG_M586) += -march=i586
cflags-$(CONFIG_M586TSC) += -march=i586
@@ -25,11 +25,11 @@ cflags-$(CONFIG_MK6) += -march=k6
# They make zero difference whatsosever to performance at this time.
cflags-$(CONFIG_MK7) += -march=athlon
cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8,-march=athlon)
-cflags-$(CONFIG_MCRUSOE) += -march=i686 $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
-cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call tune,pentium3) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
+cflags-$(CONFIG_MCRUSOE) += -march=i686 $(align)
+cflags-$(CONFIG_MEFFICEON) += -march=i686 $(call tune,pentium3) $(align)
cflags-$(CONFIG_MWINCHIPC6) += $(call cc-option,-march=winchip-c6,-march=i586)
cflags-$(CONFIG_MWINCHIP3D) += $(call cc-option,-march=winchip2,-march=i586)
-cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) $(align)-functions=0 $(align)-jumps=0 $(align)-loops=0
+cflags-$(CONFIG_MCYRIXIII) += $(call cc-option,-march=c3,-march=i486) $(align)
cflags-$(CONFIG_MVIAC3_2) += $(call cc-option,-march=c3-2,-march=i686)
cflags-$(CONFIG_MVIAC7) += -march=i686
cflags-$(CONFIG_MCORE2) += -march=i686 $(call tune,core2)
@@ -37,7 +37,7 @@ cflags-$(CONFIG_MATOM) += $(call cc-option,-march=atom,$(call cc-option,-march=
$(call cc-option,-mtune=atom,$(call cc-option,-mtune=generic))
# AMD Elan support
-cflags-$(CONFIG_X86_ELAN) += -march=i486
+cflags-$(CONFIG_MELAN) += -march=i486
# Geode GX1 support
cflags-$(CONFIG_MGEODEGX1) += -march=pentium-mmx
@@ -46,24 +46,6 @@ cflags-$(CONFIG_MGEODE_LX) += $(call cc-option,-march=geode,-march=pentium-mmx)
# cpu entries
cflags-$(CONFIG_X86_GENERIC) += $(call tune,generic,$(call tune,i686))
-# Work around the pentium-mmx code generator madness of gcc4.4.x which
-# does stack alignment by generating horrible code _before_ the mcount
-# prologue (push %ebp, mov %esp, %ebp) which breaks the function graph
-# tracer assumptions. For i686, generic, core2 this is set by the
-# compiler anyway
-ifeq ($(CONFIG_FUNCTION_GRAPH_TRACER), y)
-ADD_ACCUMULATE_OUTGOING_ARGS := y
-endif
-
-# Work around to a bug with asm goto with first implementations of it
-# in gcc causing gcc to mess up the push and pop of the stack in some
-# uses of asm goto.
-ifeq ($(CONFIG_JUMP_LABEL), y)
-ADD_ACCUMULATE_OUTGOING_ARGS := y
-endif
-
-cflags-$(ADD_ACCUMULATE_OUTGOING_ARGS) += $(call cc-option,-maccumulate-outgoing-args)
-
# Bug fix for binutils: this option is required in order to keep
# binutils from generating NOPL instructions against our will.
ifneq ($(CONFIG_X86_P6_NOP),y)
diff --git a/arch/x86/boot/.gitignore b/arch/x86/boot/.gitignore
index 851fe936d242..1189be057ebd 100644
--- a/arch/x86/boot/.gitignore
+++ b/arch/x86/boot/.gitignore
@@ -1,10 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0-only
bootsect
bzImage
cpustr.h
mkcpustr
-offsets.h
voffset.h
zoffset.h
setup
setup.bin
setup.elf
+fdimage
+mtools.conf
+image.iso
+hdimage
diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index f7cb086b4add..9e38ffaadb5d 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -9,11 +9,18 @@
# Changed by many, many contributors over the years.
#
-# ROOT_DEV specifies the default root-device when making the image.
-# This can be either FLOPPY, CURRENT, /dev/xxxx or empty, in which case
-# the default of FLOPPY is used by 'build'.
-
-ROOT_DEV := CURRENT
+# Sanitizer runtimes are unavailable and cannot be linked for early boot code.
+KASAN_SANITIZE := n
+KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
+OBJECT_FILES_NON_STANDARD := y
+
+# Kernel does not boot with kcov instrumentation here.
+# One of the problems observed was insertion of __sanitizer_cov_trace_pc()
+# callback into middle of per-cpu data enabling code. Thus the callback observed
+# inconsistent state and crashed. We are interested mostly in syscall coverage,
+# so boot code is not interesting anyway.
+KCOV_INSTRUMENT := n
# If you want to preset the SVGA mode, uncomment the next line and
# set SVGA_MODE to whatever number you want.
@@ -23,11 +30,11 @@ ROOT_DEV := CURRENT
SVGA_MODE := -DSVGA_MODE=NORMAL_VGA
targets := vmlinux.bin setup.bin setup.elf bzImage
-targets += fdimage fdimage144 fdimage288 image.iso mtools.conf
+targets += fdimage fdimage144 fdimage288 image.iso hdimage
subdir- := compressed
-setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpucheck.o
-setup-y += early_serial_console.o edd.o header.o main.o mca.o memory.o
+setup-y += a20.o bioscall.o cmdline.o copy.o cpu.o cpuflags.o cpucheck.o
+setup-y += early_serial_console.o edd.o header.o main.o memory.o
setup-y += pm.o pmjump.o printf.o regs.o string.o tty.o video.o
setup-y += video-mode.o version.o
setup-$(CONFIG_X86_APM_BOOT) += apm.o
@@ -41,46 +48,42 @@ setup-y += video-vesa.o
setup-y += video-bios.o
targets += $(setup-y)
-hostprogs-y := mkcpustr tools/build
+hostprogs := tools/build
+hostprogs += mkcpustr
-HOST_EXTRACFLAGS += $(LINUXINCLUDE)
+HOST_EXTRACFLAGS += -I$(srctree)/tools/include \
+ -include include/generated/autoconf.h \
+ -D__EXPORTED_HEADERS__
+ifdef CONFIG_X86_FEATURE_NAMES
$(obj)/cpu.o: $(obj)/cpustr.h
quiet_cmd_cpustr = CPUSTR $@
cmd_cpustr = $(obj)/mkcpustr > $@
-targets += cpustr.h
$(obj)/cpustr.h: $(obj)/mkcpustr FORCE
$(call if_changed,cpustr)
+endif
+targets += cpustr.h
# ---------------------------------------------------------------------------
-# How to compile the 16-bit code. Note we always compile for -march=i386,
-# that way we can complain to the user if the CPU is insufficient.
-KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D__KERNEL__ \
- -DDISABLE_BRANCH_PROFILING \
- -Wall -Wstrict-prototypes \
- -march=i386 -mregparm=3 \
- -include $(srctree)/$(src)/code16gcc.h \
- -fno-strict-aliasing -fomit-frame-pointer \
- $(call cc-option, -ffreestanding) \
- $(call cc-option, -fno-toplevel-reorder,\
- $(call cc-option, -fno-unit-at-a-time)) \
- $(call cc-option, -fno-stack-protector) \
- $(call cc-option, -mpreferred-stack-boundary=2)
-KBUILD_CFLAGS += $(call cc-option, -m32)
+KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
+KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
+KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
GCOV_PROFILE := n
+UBSAN_SANITIZE := n
$(obj)/bzImage: asflags-y := $(SVGA_MODE)
quiet_cmd_image = BUILD $@
+silent_redirect_image = >/dev/null
cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
- $(ROOT_DEV) > $@
+ $(obj)/zoffset.h $@ $($(quiet)redirect_image)
$(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
$(call if_changed,image)
- @echo 'Kernel: $@ is ready' ' (#'`cat .version`')'
+ @$(kecho) 'Kernel: $@ is ready' ' (#'$(or $(KBUILD_BUILD_VERSION),`cat .version`)')'
OBJCOPYFLAGS_vmlinux.bin := -O binary -R .note -R .comment -S
$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
@@ -88,16 +91,7 @@ $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
SETUP_OBJS = $(addprefix $(obj)/,$(setup-y))
-sed-voffset := -e 's/^\([0-9a-fA-F]*\) . \(_text\|_end\)$$/\#define VO_\2 0x\1/p'
-
-quiet_cmd_voffset = VOFFSET $@
- cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
-
-targets += voffset.h
-$(obj)/voffset.h: vmlinux FORCE
- $(call if_changed,voffset)
-
-sed-zoffset := -e 's/^\([0-9a-fA-F]*\) . \(startup_32\|input_data\|_end\|z_.*\)$$/\#define ZO_\2 0x\1/p'
+sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|efi32_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p'
quiet_cmd_zoffset = ZOFFSET $@
cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@
@@ -107,10 +101,10 @@ $(obj)/zoffset.h: $(obj)/compressed/vmlinux FORCE
$(call if_changed,zoffset)
-AFLAGS_header.o += -I$(obj)
-$(obj)/header.o: $(obj)/voffset.h $(obj)/zoffset.h
+AFLAGS_header.o += -I$(objtree)/$(obj)
+$(obj)/header.o: $(obj)/zoffset.h
-LDFLAGS_setup.elf := -T
+LDFLAGS_setup.elf := -m elf_i386 -z noexecstack -T
$(obj)/setup.elf: $(src)/setup.ld $(SETUP_OBJS) FORCE
$(call if_changed,ld)
@@ -122,79 +116,44 @@ $(obj)/compressed/vmlinux: FORCE
$(Q)$(MAKE) $(build)=$(obj)/compressed $@
# Set this if you want to pass append arguments to the
-# bzdisk/fdimage/isoimage kernel
+# bzdisk/fdimage/hdimage/isoimage kernel
FDARGS =
-# Set this if you want an initrd included with the
-# bzdisk/fdimage/isoimage kernel
+# Set this if you want one or more initrds included in the image
FDINITRD =
-image_cmdline = default linux $(FDARGS) $(if $(FDINITRD),initrd=initrd.img,)
+imgdeps = $(obj)/bzImage $(obj)/mtools.conf $(src)/genimage.sh
$(obj)/mtools.conf: $(src)/mtools.conf.in
sed -e 's|@OBJ@|$(obj)|g' < $< > $@
+targets += mtools.conf
+
+# genimage.sh requires bash, but it also has a bunch of other
+# external dependencies.
+quiet_cmd_genimage = GENIMAGE $3
+cmd_genimage = $(BASH) $(srctree)/$(src)/genimage.sh $2 $3 $(obj)/bzImage \
+ $(obj)/mtools.conf '$(FDARGS)' $(FDINITRD)
+
+PHONY += bzdisk fdimage fdimage144 fdimage288 hdimage isoimage
+
# This requires write access to /dev/fd0
-bzdisk: $(obj)/bzImage $(obj)/mtools.conf
- MTOOLSRC=$(obj)/mtools.conf mformat a: ; sync
- syslinux /dev/fd0 ; sync
- echo '$(image_cmdline)' | \
- MTOOLSRC=$(src)/mtools.conf mcopy - a:syslinux.cfg
- if [ -f '$(FDINITRD)' ] ; then \
- MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' a:initrd.img ; \
- fi
- MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage a:linux ; sync
-
-# These require being root or having syslinux 2.02 or higher installed
-fdimage fdimage144: $(obj)/bzImage $(obj)/mtools.conf
- dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=1440
- MTOOLSRC=$(obj)/mtools.conf mformat v: ; sync
- syslinux $(obj)/fdimage ; sync
- echo '$(image_cmdline)' | \
- MTOOLSRC=$(obj)/mtools.conf mcopy - v:syslinux.cfg
- if [ -f '$(FDINITRD)' ] ; then \
- MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' v:initrd.img ; \
- fi
- MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage v:linux ; sync
-
-fdimage288: $(obj)/bzImage $(obj)/mtools.conf
- dd if=/dev/zero of=$(obj)/fdimage bs=1024 count=2880
- MTOOLSRC=$(obj)/mtools.conf mformat w: ; sync
- syslinux $(obj)/fdimage ; sync
- echo '$(image_cmdline)' | \
- MTOOLSRC=$(obj)/mtools.conf mcopy - w:syslinux.cfg
- if [ -f '$(FDINITRD)' ] ; then \
- MTOOLSRC=$(obj)/mtools.conf mcopy '$(FDINITRD)' w:initrd.img ; \
- fi
- MTOOLSRC=$(obj)/mtools.conf mcopy $(obj)/bzImage w:linux ; sync
-
-isoimage: $(obj)/bzImage
- -rm -rf $(obj)/isoimage
- mkdir $(obj)/isoimage
- for i in lib lib64 share end ; do \
- if [ -f /usr/$$i/syslinux/isolinux.bin ] ; then \
- cp /usr/$$i/syslinux/isolinux.bin $(obj)/isoimage ; \
- break ; \
- fi ; \
- if [ $$i = end ] ; then exit 1 ; fi ; \
- done
- cp $(obj)/bzImage $(obj)/isoimage/linux
- echo '$(image_cmdline)' > $(obj)/isoimage/isolinux.cfg
- if [ -f '$(FDINITRD)' ] ; then \
- cp '$(FDINITRD)' $(obj)/isoimage/initrd.img ; \
- fi
- mkisofs -J -r -o $(obj)/image.iso -b isolinux.bin -c boot.cat \
- -no-emul-boot -boot-load-size 4 -boot-info-table \
- $(obj)/isoimage
- isohybrid $(obj)/image.iso 2>/dev/null || true
- rm -rf $(obj)/isoimage
-
-bzlilo: $(obj)/bzImage
- if [ -f $(INSTALL_PATH)/vmlinuz ]; then mv $(INSTALL_PATH)/vmlinuz $(INSTALL_PATH)/vmlinuz.old; fi
- if [ -f $(INSTALL_PATH)/System.map ]; then mv $(INSTALL_PATH)/System.map $(INSTALL_PATH)/System.old; fi
- cat $(obj)/bzImage > $(INSTALL_PATH)/vmlinuz
- cp System.map $(INSTALL_PATH)/
- if [ -x /sbin/lilo ]; then /sbin/lilo; else /etc/lilo/install; fi
-
-install:
- sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
- System.map "$(INSTALL_PATH)"
+# All images require syslinux to be installed; hdimage also requires
+# EDK2/OVMF if the kernel is compiled with the EFI stub.
+bzdisk: $(imgdeps)
+ $(call cmd,genimage,bzdisk,/dev/fd0)
+
+fdimage fdimage144: $(imgdeps)
+ $(call cmd,genimage,fdimage144,$(obj)/fdimage)
+ @$(kecho) 'Kernel: $(obj)/fdimage is ready'
+
+fdimage288: $(imgdeps)
+ $(call cmd,genimage,fdimage288,$(obj)/fdimage)
+ @$(kecho) 'Kernel: $(obj)/fdimage is ready'
+
+hdimage: $(imgdeps)
+ $(call cmd,genimage,hdimage,$(obj)/hdimage)
+ @$(kecho) 'Kernel: $(obj)/hdimage is ready'
+
+isoimage: $(imgdeps)
+ $(call cmd,genimage,isoimage,$(obj)/image.iso)
+ @$(kecho) 'Kernel: $(obj)/image.iso is ready'
diff --git a/arch/x86/boot/a20.c b/arch/x86/boot/a20.c
index 64a31a6d751a..a2b6b428922a 100644
--- a/arch/x86/boot/a20.c
+++ b/arch/x86/boot/a20.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007-2008 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
diff --git a/arch/x86/boot/apm.c b/arch/x86/boot/apm.c
index ee274834ea8b..bda15f9673d5 100644
--- a/arch/x86/boot/apm.c
+++ b/arch/x86/boot/apm.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
@@ -7,9 +8,6 @@
* Original APM BIOS checking by Stephen Rothwell, May 1994
* (sfr@canb.auug.org.au)
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -62,7 +60,7 @@ int query_apm_bios(void)
intcall(0x15, &ireg, &oreg);
if ((oreg.eflags & X86_EFLAGS_CF) || oreg.bx != 0x504d) {
- /* Failure with 32-bit connect, try to disconect and ignore */
+ /* Failure with 32-bit connect, try to disconnect and ignore */
ireg.al = 0x04;
intcall(0x15, &ireg, NULL);
return -1;
diff --git a/arch/x86/boot/bioscall.S b/arch/x86/boot/bioscall.S
index 1dfbf64e52a2..aa9b96457584 100644
--- a/arch/x86/boot/bioscall.S
+++ b/arch/x86/boot/bioscall.S
@@ -1,10 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/* -----------------------------------------------------------------------
*
- * Copyright 2009 Intel Corporation; author H. Peter Anvin
- *
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2 or (at your
- * option) any later version; incorporated herein by reference.
+ * Copyright 2009-2014 Intel Corporation; author H. Peter Anvin
*
* ----------------------------------------------------------------------- */
@@ -13,8 +10,8 @@
* touching registers they shouldn't be.
*/
- .code16gcc
- .text
+ .code16
+ .section ".inittext","ax"
.globl intcall
.type intcall, @function
intcall:
@@ -35,7 +32,7 @@ intcall:
movw %dx, %si
movw %sp, %di
movw $11, %cx
- rep; movsd
+ rep; movsl
/* Pop full state from the stack */
popal
@@ -70,7 +67,7 @@ intcall:
jz 4f
movw %sp, %si
movw $11, %cx
- rep; movsd
+ rep; movsl
4: addw $44, %sp
/* Restore state and return */
diff --git a/arch/x86/boot/bitops.h b/arch/x86/boot/bitops.h
index 878e4b9940d9..8518ae214c9b 100644
--- a/arch/x86/boot/bitops.h
+++ b/arch/x86/boot/bitops.h
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -16,17 +14,20 @@
#define BOOT_BITOPS_H
#define _LINUX_BITOPS_H /* Inhibit inclusion of <linux/bitops.h> */
-static inline int constant_test_bit(int nr, const void *addr)
+#include <linux/types.h>
+#include <asm/asm.h>
+
+static inline bool constant_test_bit(int nr, const void *addr)
{
- const u32 *p = (const u32 *)addr;
+ const u32 *p = addr;
return ((1UL << (nr & 31)) & (p[nr >> 5])) != 0;
}
-static inline int variable_test_bit(int nr, const void *addr)
+static inline bool variable_test_bit(int nr, const void *addr)
{
- u8 v;
- const u32 *p = (const u32 *)addr;
+ bool v;
+ const u32 *p = addr;
- asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr));
+ asm("btl %2,%1" CC_SET(c) : CC_OUT(c) (v) : "m" (*p), "Ir" (nr));
return v;
}
diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
index c7093bd9f2d3..148ba5c5106e 100644
--- a/arch/x86/boot/boot.h
+++ b/arch/x86/boot/boot.h
@@ -1,12 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -16,23 +14,21 @@
#ifndef BOOT_BOOT_H
#define BOOT_BOOT_H
-#define STACK_SIZE 512 /* Minimum number of bytes for stack */
+#define STACK_SIZE 1024 /* Minimum number of bytes for stack */
#ifndef __ASSEMBLY__
-#include <stdarg.h>
+#include <linux/stdarg.h>
#include <linux/types.h>
#include <linux/edd.h>
-#include <asm/boot.h>
#include <asm/setup.h>
+#include <asm/asm.h>
#include "bitops.h"
-#include <asm/cpufeature.h>
-#include <asm/processor-flags.h>
#include "ctype.h"
+#include "cpuflags.h"
+#include "io.h"
/* Useful macros */
-#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
-
#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
extern struct setup_header hdr;
@@ -40,44 +36,10 @@ extern struct boot_params boot_params;
#define cpu_relax() asm volatile("rep; nop")
-/* Basic port I/O */
-static inline void outb(u8 v, u16 port)
-{
- asm volatile("outb %0,%1" : : "a" (v), "dN" (port));
-}
-static inline u8 inb(u16 port)
-{
- u8 v;
- asm volatile("inb %1,%0" : "=a" (v) : "dN" (port));
- return v;
-}
-
-static inline void outw(u16 v, u16 port)
-{
- asm volatile("outw %0,%1" : : "a" (v), "dN" (port));
-}
-static inline u16 inw(u16 port)
-{
- u16 v;
- asm volatile("inw %1,%0" : "=a" (v) : "dN" (port));
- return v;
-}
-
-static inline void outl(u32 v, u16 port)
-{
- asm volatile("outl %0,%1" : : "a" (v), "dN" (port));
-}
-static inline u32 inl(u32 port)
-{
- u32 v;
- asm volatile("inl %1,%0" : "=a" (v) : "dN" (port));
- return v;
-}
-
static inline void io_delay(void)
{
const u16 DELAY_PORT = 0x80;
- asm volatile("outb %%al,%0" : : "dN" (DELAY_PORT));
+ outb(0, DELAY_PORT);
}
/* These functions are used to reference data in other segments. */
@@ -115,89 +77,93 @@ typedef unsigned int addr_t;
static inline u8 rdfs8(addr_t addr)
{
+ u8 *ptr = (u8 *)absolute_pointer(addr);
u8 v;
- asm volatile("movb %%fs:%1,%0" : "=q" (v) : "m" (*(u8 *)addr));
+ asm volatile("movb %%fs:%1,%0" : "=q" (v) : "m" (*ptr));
return v;
}
static inline u16 rdfs16(addr_t addr)
{
+ u16 *ptr = (u16 *)absolute_pointer(addr);
u16 v;
- asm volatile("movw %%fs:%1,%0" : "=r" (v) : "m" (*(u16 *)addr));
+ asm volatile("movw %%fs:%1,%0" : "=r" (v) : "m" (*ptr));
return v;
}
static inline u32 rdfs32(addr_t addr)
{
+ u32 *ptr = (u32 *)absolute_pointer(addr);
u32 v;
- asm volatile("movl %%fs:%1,%0" : "=r" (v) : "m" (*(u32 *)addr));
+ asm volatile("movl %%fs:%1,%0" : "=r" (v) : "m" (*ptr));
return v;
}
static inline void wrfs8(u8 v, addr_t addr)
{
- asm volatile("movb %1,%%fs:%0" : "+m" (*(u8 *)addr) : "qi" (v));
+ u8 *ptr = (u8 *)absolute_pointer(addr);
+ asm volatile("movb %1,%%fs:%0" : "+m" (*ptr) : "qi" (v));
}
static inline void wrfs16(u16 v, addr_t addr)
{
- asm volatile("movw %1,%%fs:%0" : "+m" (*(u16 *)addr) : "ri" (v));
+ u16 *ptr = (u16 *)absolute_pointer(addr);
+ asm volatile("movw %1,%%fs:%0" : "+m" (*ptr) : "ri" (v));
}
static inline void wrfs32(u32 v, addr_t addr)
{
- asm volatile("movl %1,%%fs:%0" : "+m" (*(u32 *)addr) : "ri" (v));
+ u32 *ptr = (u32 *)absolute_pointer(addr);
+ asm volatile("movl %1,%%fs:%0" : "+m" (*ptr) : "ri" (v));
}
static inline u8 rdgs8(addr_t addr)
{
+ u8 *ptr = (u8 *)absolute_pointer(addr);
u8 v;
- asm volatile("movb %%gs:%1,%0" : "=q" (v) : "m" (*(u8 *)addr));
+ asm volatile("movb %%gs:%1,%0" : "=q" (v) : "m" (*ptr));
return v;
}
static inline u16 rdgs16(addr_t addr)
{
+ u16 *ptr = (u16 *)absolute_pointer(addr);
u16 v;
- asm volatile("movw %%gs:%1,%0" : "=r" (v) : "m" (*(u16 *)addr));
+ asm volatile("movw %%gs:%1,%0" : "=r" (v) : "m" (*ptr));
return v;
}
static inline u32 rdgs32(addr_t addr)
{
+ u32 *ptr = (u32 *)absolute_pointer(addr);
u32 v;
- asm volatile("movl %%gs:%1,%0" : "=r" (v) : "m" (*(u32 *)addr));
+ asm volatile("movl %%gs:%1,%0" : "=r" (v) : "m" (*ptr));
return v;
}
static inline void wrgs8(u8 v, addr_t addr)
{
- asm volatile("movb %1,%%gs:%0" : "+m" (*(u8 *)addr) : "qi" (v));
+ u8 *ptr = (u8 *)absolute_pointer(addr);
+ asm volatile("movb %1,%%gs:%0" : "+m" (*ptr) : "qi" (v));
}
static inline void wrgs16(u16 v, addr_t addr)
{
- asm volatile("movw %1,%%gs:%0" : "+m" (*(u16 *)addr) : "ri" (v));
+ u16 *ptr = (u16 *)absolute_pointer(addr);
+ asm volatile("movw %1,%%gs:%0" : "+m" (*ptr) : "ri" (v));
}
static inline void wrgs32(u32 v, addr_t addr)
{
- asm volatile("movl %1,%%gs:%0" : "+m" (*(u32 *)addr) : "ri" (v));
+ u32 *ptr = (u32 *)absolute_pointer(addr);
+ asm volatile("movl %1,%%gs:%0" : "+m" (*ptr) : "ri" (v));
}
/* Note: these only return true/false, not a signed return value! */
-static inline int memcmp(const void *s1, const void *s2, size_t len)
-{
- u8 diff;
- asm("repe; cmpsb; setnz %0"
- : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
- return diff;
-}
-
-static inline int memcmp_fs(const void *s1, addr_t s2, size_t len)
+static inline bool memcmp_fs(const void *s1, addr_t s2, size_t len)
{
- u8 diff;
- asm volatile("fs; repe; cmpsb; setnz %0"
- : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
+ bool diff;
+ asm volatile("fs; repe; cmpsb" CC_SET(nz)
+ : CC_OUT(nz) (diff), "+D" (s1), "+S" (s2), "+c" (len));
return diff;
}
-static inline int memcmp_gs(const void *s1, addr_t s2, size_t len)
+static inline bool memcmp_gs(const void *s1, addr_t s2, size_t len)
{
- u8 diff;
- asm volatile("gs; repe; cmpsb; setnz %0"
- : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len));
+ bool diff;
+ asm volatile("gs; repe; cmpsb" CC_SET(nz)
+ : CC_OUT(nz) (diff), "+D" (s1), "+S" (s2), "+c" (len));
return diff;
}
@@ -229,11 +195,6 @@ void copy_to_fs(addr_t dst, void *src, size_t len);
void *copy_from_fs(void *dst, addr_t src, size_t len);
void copy_to_gs(addr_t dst, void *src, size_t len);
void *copy_from_gs(void *dst, addr_t src, size_t len);
-void *memcpy(void *dst, void *src, size_t len);
-void *memset(void *dst, int c, size_t len);
-
-#define memcpy(d,s,l) __builtin_memcpy(d,s,l)
-#define memset(d,c,l) __builtin_memset(d,c,l)
/* a20.c */
int enable_a20(void);
@@ -285,27 +246,31 @@ struct biosregs {
void intcall(u8 int_no, const struct biosregs *ireg, struct biosregs *oreg);
/* cmdline.c */
-int __cmdline_find_option(u32 cmdline_ptr, const char *option, char *buffer, int bufsize);
-int __cmdline_find_option_bool(u32 cmdline_ptr, const char *option);
+int __cmdline_find_option(unsigned long cmdline_ptr, const char *option, char *buffer, int bufsize);
+int __cmdline_find_option_bool(unsigned long cmdline_ptr, const char *option);
static inline int cmdline_find_option(const char *option, char *buffer, int bufsize)
{
- return __cmdline_find_option(boot_params.hdr.cmd_line_ptr, option, buffer, bufsize);
+ unsigned long cmd_line_ptr = boot_params.hdr.cmd_line_ptr;
+
+ if (cmd_line_ptr >= 0x100000)
+ return -1; /* inaccessible */
+
+ return __cmdline_find_option(cmd_line_ptr, option, buffer, bufsize);
}
static inline int cmdline_find_option_bool(const char *option)
{
- return __cmdline_find_option_bool(boot_params.hdr.cmd_line_ptr, option);
-}
+ unsigned long cmd_line_ptr = boot_params.hdr.cmd_line_ptr;
+ if (cmd_line_ptr >= 0x100000)
+ return -1; /* inaccessible */
+
+ return __cmdline_find_option_bool(cmd_line_ptr, option);
+}
/* cpu.c, cpucheck.c */
-struct cpu_features {
- int level; /* Family, or 64 for x86-64 */
- int model;
- u32 flags[NCAPINTS];
-};
-extern struct cpu_features cpu;
int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr);
+int check_knl_erratum(void);
int validate_cpu(void);
/* early_serial_console.c */
@@ -318,11 +283,8 @@ void query_edd(void);
/* header.S */
void __attribute__((noreturn)) die(void);
-/* mca.c */
-int query_mca(void);
-
/* memory.c */
-int detect_memory(void);
+void detect_memory(void);
/* pm.c */
void __attribute__((noreturn)) go_to_protected_mode(void);
@@ -345,6 +307,8 @@ int strncmp(const char *cs, const char *ct, size_t count);
size_t strnlen(const char *s, size_t maxlen);
unsigned int atou(const char *s);
unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base);
+size_t strlen(const char *s);
+char *strchr(const char *s, int c);
/* tty.c */
void puts(const char *);
diff --git a/arch/x86/boot/cmdline.c b/arch/x86/boot/cmdline.c
index 6b3b6f708c04..21d56ae83cdf 100644
--- a/arch/x86/boot/cmdline.c
+++ b/arch/x86/boot/cmdline.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -27,7 +25,7 @@ static inline int myisspace(u8 c)
* Returns the length of the argument (regardless of if it was
* truncated to fit in the buffer), or -1 on not found.
*/
-int __cmdline_find_option(u32 cmdline_ptr, const char *option, char *buffer, int bufsize)
+int __cmdline_find_option(unsigned long cmdline_ptr, const char *option, char *buffer, int bufsize)
{
addr_t cptr;
char c;
@@ -41,8 +39,8 @@ int __cmdline_find_option(u32 cmdline_ptr, const char *option, char *buffer, int
st_bufcpy /* Copying this to buffer */
} state = st_wordstart;
- if (!cmdline_ptr || cmdline_ptr >= 0x100000)
- return -1; /* No command line, or inaccessible */
+ if (!cmdline_ptr)
+ return -1; /* No command line */
cptr = cmdline_ptr & 0xf;
set_fs(cmdline_ptr >> 4);
@@ -56,7 +54,7 @@ int __cmdline_find_option(u32 cmdline_ptr, const char *option, char *buffer, int
/* else */
state = st_wordcmp;
opptr = option;
- /* fall through */
+ fallthrough;
case st_wordcmp:
if (c == '=' && !*opptr) {
@@ -99,7 +97,7 @@ int __cmdline_find_option(u32 cmdline_ptr, const char *option, char *buffer, int
* Returns the position of that option (starts counting with 1)
* or 0 on not found
*/
-int __cmdline_find_option_bool(u32 cmdline_ptr, const char *option)
+int __cmdline_find_option_bool(unsigned long cmdline_ptr, const char *option)
{
addr_t cptr;
char c;
@@ -111,8 +109,8 @@ int __cmdline_find_option_bool(u32 cmdline_ptr, const char *option)
st_wordskip, /* Miscompare, skip */
} state = st_wordstart;
- if (!cmdline_ptr || cmdline_ptr >= 0x100000)
- return -1; /* No command line, or inaccessible */
+ if (!cmdline_ptr)
+ return -1; /* No command line */
cptr = cmdline_ptr & 0xf;
set_fs(cmdline_ptr >> 4);
@@ -131,7 +129,7 @@ int __cmdline_find_option_bool(u32 cmdline_ptr, const char *option)
state = st_wordcmp;
opptr = option;
wstart = pos;
- /* fall through */
+ fallthrough;
case st_wordcmp:
if (!*opptr)
diff --git a/arch/x86/boot/code16gcc.h b/arch/x86/boot/code16gcc.h
deleted file mode 100644
index d93e48010b61..000000000000
--- a/arch/x86/boot/code16gcc.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
- * code16gcc.h
- *
- * This file is -include'd when compiling 16-bit C code.
- * Note: this asm() needs to be emitted before gcc emits any code.
- * Depending on gcc version, this requires -fno-unit-at-a-time or
- * -fno-toplevel-reorder.
- *
- * Hopefully gcc will eventually have a real -m16 option so we can
- * drop this hack long term.
- */
-
-#ifndef __ASSEMBLY__
-asm(".code16gcc");
-#endif
diff --git a/arch/x86/boot/compressed/.gitignore b/arch/x86/boot/compressed/.gitignore
index 4a46fab7162e..25805199a506 100644
--- a/arch/x86/boot/compressed/.gitignore
+++ b/arch/x86/boot/compressed/.gitignore
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
relocs
vmlinux.bin.all
vmlinux.relocs
diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
index 09664efb9cee..6b6cfe607bdb 100644
--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
@@ -1,43 +1,130 @@
+# SPDX-License-Identifier: GPL-2.0
#
# linux/arch/x86/boot/compressed/Makefile
#
# create a compressed vmlinux image from the original vmlinux
#
+# vmlinuz is:
+# decompression code (*.o)
+# asm globals (piggy.S), including:
+# vmlinux.bin.(gz|bz2|lzma|...)
+#
+# vmlinux.bin is:
+# vmlinux stripped of debugging and comments
+# vmlinux.bin.all is:
+# vmlinux.bin + vmlinux.relocs
+# vmlinux.bin.(gz|bz2|lzma|...) is:
+# (see scripts/Makefile.lib size_append)
+# compressed vmlinux.bin.all + u32 size of vmlinux.bin.all
+
+# Sanitizer runtimes are unavailable and cannot be linked for early boot code.
+KASAN_SANITIZE := n
+KCSAN_SANITIZE := n
+KMSAN_SANITIZE := n
+OBJECT_FILES_NON_STANDARD := y
-targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo head_$(BITS).o misc.o string.o cmdline.o early_serial_console.o piggy.o
+# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
+KCOV_INSTRUMENT := n
-KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
-KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
+targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
+ vmlinux.bin.xz vmlinux.bin.lzo vmlinux.bin.lz4 vmlinux.bin.zst
+
+# CLANG_FLAGS must come before any cc-disable-warning or cc-option calls in
+# case of cross compiling, as it has the '--target=' flag, which is needed to
+# avoid errors with '-march=i386', and future flags may depend on the target to
+# be valid.
+KBUILD_CFLAGS := -m$(BITS) -O2 $(CLANG_FLAGS)
+KBUILD_CFLAGS += -fno-strict-aliasing -fPIE
+KBUILD_CFLAGS += -Wundef
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
cflags-$(CONFIG_X86_32) := -march=i386
-cflags-$(CONFIG_X86_64) := -mcmodel=small
+cflags-$(CONFIG_X86_64) := -mcmodel=small -mno-red-zone
KBUILD_CFLAGS += $(cflags-y)
-KBUILD_CFLAGS += $(call cc-option,-ffreestanding)
-KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector)
+KBUILD_CFLAGS += -mno-mmx -mno-sse
+KBUILD_CFLAGS += -ffreestanding -fshort-wchar
+KBUILD_CFLAGS += -fno-stack-protector
+KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member)
+KBUILD_CFLAGS += $(call cc-disable-warning, gnu)
+KBUILD_CFLAGS += -Wno-pointer-sign
+KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=)
+KBUILD_CFLAGS += -fno-asynchronous-unwind-tables
+KBUILD_CFLAGS += -D__DISABLE_EXPORTS
+# Disable relocation relaxation in case the link is not PIE.
+KBUILD_CFLAGS += $(call cc-option,-Wa$(comma)-mrelax-relocations=no)
+KBUILD_CFLAGS += -include $(srctree)/include/linux/hidden.h
+
+# sev.c indirectly inludes inat-table.h which is generated during
+# compilation and stored in $(objtree). Add the directory to the includes so
+# that the compiler finds it even with out-of-tree builds (make O=/some/path).
+CFLAGS_sev.o += -I$(objtree)/arch/x86/lib/
KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
GCOV_PROFILE := n
+UBSAN_SANITIZE :=n
+
+KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE)
+KBUILD_LDFLAGS += $(call ld-option,--no-ld-generated-unwind-info)
+# Compressed kernel should be built as PIE since it may be loaded at any
+# address by the bootloader.
+LDFLAGS_vmlinux := -pie $(call ld-option, --no-dynamic-linker)
+ifdef CONFIG_LD_ORPHAN_WARN
+LDFLAGS_vmlinux += --orphan-handling=$(CONFIG_LD_ORPHAN_WARN_LEVEL)
+endif
+LDFLAGS_vmlinux += -z noexecstack
+ifeq ($(CONFIG_LD_IS_BFD),y)
+LDFLAGS_vmlinux += $(call ld-option,--no-warn-rwx-segments)
+endif
+LDFLAGS_vmlinux += -T
+
+hostprogs := mkpiggy
+HOST_EXTRACFLAGS += -I$(srctree)/tools/include
+
+sed-voffset := -e 's/^\([0-9a-fA-F]*\) [ABCDGRSTVW] \(_text\|__bss_start\|_end\)$$/\#define VO_\2 _AC(0x\1,UL)/p'
-LDFLAGS := -m elf_$(UTS_MACHINE)
-LDFLAGS_vmlinux := -T
+quiet_cmd_voffset = VOFFSET $@
+ cmd_voffset = $(NM) $< | sed -n $(sed-voffset) > $@
-hostprogs-y := mkpiggy
+targets += ../voffset.h
-$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/string.o $(obj)/cmdline.o $(obj)/early_serial_console.o $(obj)/piggy.o FORCE
+$(obj)/../voffset.h: vmlinux FORCE
+ $(call if_changed,voffset)
+
+$(obj)/misc.o: $(obj)/../voffset.h
+
+vmlinux-objs-y := $(obj)/vmlinux.lds $(obj)/kernel_info.o $(obj)/head_$(BITS).o \
+ $(obj)/misc.o $(obj)/string.o $(obj)/cmdline.o $(obj)/error.o \
+ $(obj)/piggy.o $(obj)/cpuflags.o
+
+vmlinux-objs-$(CONFIG_EARLY_PRINTK) += $(obj)/early_serial_console.o
+vmlinux-objs-$(CONFIG_RANDOMIZE_BASE) += $(obj)/kaslr.o
+ifdef CONFIG_X86_64
+ vmlinux-objs-y += $(obj)/ident_map_64.o
+ vmlinux-objs-y += $(obj)/idt_64.o $(obj)/idt_handlers_64.o
+ vmlinux-objs-$(CONFIG_AMD_MEM_ENCRYPT) += $(obj)/mem_encrypt.o
+ vmlinux-objs-y += $(obj)/pgtable_64.o
+ vmlinux-objs-$(CONFIG_AMD_MEM_ENCRYPT) += $(obj)/sev.o
+endif
+
+vmlinux-objs-$(CONFIG_ACPI) += $(obj)/acpi.o
+vmlinux-objs-$(CONFIG_INTEL_TDX_GUEST) += $(obj)/tdx.o $(obj)/tdcall.o
+
+vmlinux-objs-$(CONFIG_EFI) += $(obj)/efi.o
+vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi_mixed.o
+vmlinux-objs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a
+
+$(obj)/vmlinux: $(vmlinux-objs-y) FORCE
$(call if_changed,ld)
- @:
OBJCOPYFLAGS_vmlinux.bin := -R .comment -S
$(obj)/vmlinux.bin: vmlinux FORCE
$(call if_changed,objcopy)
+targets += $(patsubst $(obj)/%,%,$(vmlinux-objs-y)) vmlinux.bin.all vmlinux.relocs
-targets += vmlinux.bin.all vmlinux.relocs relocs
-hostprogs-$(CONFIG_X86_NEED_RELOCS) += relocs
-
+CMD_RELOCS = arch/x86/tools/relocs
quiet_cmd_relocs = RELOCS $@
- cmd_relocs = $(obj)/relocs $< > $@;$(obj)/relocs --abs-relocs $<
-$(obj)/vmlinux.relocs: vmlinux $(obj)/relocs FORCE
+ cmd_relocs = $(CMD_RELOCS) $< > $@;$(CMD_RELOCS) --abs-relocs $<
+$(obj)/vmlinux.relocs: vmlinux FORCE
$(call if_changed,relocs)
vmlinux.bin.all-y := $(obj)/vmlinux.bin
@@ -46,22 +133,28 @@ vmlinux.bin.all-$(CONFIG_X86_NEED_RELOCS) += $(obj)/vmlinux.relocs
$(obj)/vmlinux.bin.gz: $(vmlinux.bin.all-y) FORCE
$(call if_changed,gzip)
$(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
- $(call if_changed,bzip2)
+ $(call if_changed,bzip2_with_size)
$(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
- $(call if_changed,lzma)
+ $(call if_changed,lzma_with_size)
$(obj)/vmlinux.bin.xz: $(vmlinux.bin.all-y) FORCE
- $(call if_changed,xzkern)
+ $(call if_changed,xzkern_with_size)
$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
- $(call if_changed,lzo)
+ $(call if_changed,lzo_with_size)
+$(obj)/vmlinux.bin.lz4: $(vmlinux.bin.all-y) FORCE
+ $(call if_changed,lz4_with_size)
+$(obj)/vmlinux.bin.zst: $(vmlinux.bin.all-y) FORCE
+ $(call if_changed,zstd22_with_size)
suffix-$(CONFIG_KERNEL_GZIP) := gz
suffix-$(CONFIG_KERNEL_BZIP2) := bz2
suffix-$(CONFIG_KERNEL_LZMA) := lzma
suffix-$(CONFIG_KERNEL_XZ) := xz
suffix-$(CONFIG_KERNEL_LZO) := lzo
+suffix-$(CONFIG_KERNEL_LZ4) := lz4
+suffix-$(CONFIG_KERNEL_ZSTD) := zst
quiet_cmd_mkpiggy = MKPIGGY $@
- cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false )
+ cmd_mkpiggy = $(obj)/mkpiggy $< > $@
targets += piggy.S
$(obj)/piggy.S: $(obj)/vmlinux.bin.$(suffix-y) $(obj)/mkpiggy FORCE
diff --git a/arch/x86/boot/compressed/acpi.c b/arch/x86/boot/compressed/acpi.c
new file mode 100644
index 000000000000..9caf89063e77
--- /dev/null
+++ b/arch/x86/boot/compressed/acpi.c
@@ -0,0 +1,315 @@
+// SPDX-License-Identifier: GPL-2.0
+#define BOOT_CTYPE_H
+#include "misc.h"
+#include "error.h"
+#include "../string.h"
+#include "efi.h"
+
+#include <linux/numa.h>
+
+/*
+ * Longest parameter of 'acpi=' is 'copy_dsdt', plus an extra '\0'
+ * for termination.
+ */
+#define MAX_ACPI_ARG_LENGTH 10
+
+/*
+ * Immovable memory regions representation. Max amount of memory regions is
+ * MAX_NUMNODES*2.
+ */
+struct mem_vector immovable_mem[MAX_NUMNODES*2];
+
+static acpi_physical_address
+__efi_get_rsdp_addr(unsigned long cfg_tbl_pa, unsigned int cfg_tbl_len)
+{
+#ifdef CONFIG_EFI
+ unsigned long rsdp_addr;
+ int ret;
+
+ /*
+ * Search EFI system tables for RSDP. Preferred is ACPI_20_TABLE_GUID to
+ * ACPI_TABLE_GUID because it has more features.
+ */
+ rsdp_addr = efi_find_vendor_table(boot_params, cfg_tbl_pa, cfg_tbl_len,
+ ACPI_20_TABLE_GUID);
+ if (rsdp_addr)
+ return (acpi_physical_address)rsdp_addr;
+
+ /* No ACPI_20_TABLE_GUID found, fallback to ACPI_TABLE_GUID. */
+ rsdp_addr = efi_find_vendor_table(boot_params, cfg_tbl_pa, cfg_tbl_len,
+ ACPI_TABLE_GUID);
+ if (rsdp_addr)
+ return (acpi_physical_address)rsdp_addr;
+
+ debug_putstr("Error getting RSDP address.\n");
+#endif
+ return 0;
+}
+
+static acpi_physical_address efi_get_rsdp_addr(void)
+{
+#ifdef CONFIG_EFI
+ unsigned long cfg_tbl_pa = 0;
+ unsigned int cfg_tbl_len;
+ unsigned long systab_pa;
+ unsigned int nr_tables;
+ enum efi_type et;
+ int ret;
+
+ et = efi_get_type(boot_params);
+ if (et == EFI_TYPE_NONE)
+ return 0;
+
+ systab_pa = efi_get_system_table(boot_params);
+ if (!systab_pa)
+ error("EFI support advertised, but unable to locate system table.");
+
+ ret = efi_get_conf_table(boot_params, &cfg_tbl_pa, &cfg_tbl_len);
+ if (ret || !cfg_tbl_pa)
+ error("EFI config table not found.");
+
+ return __efi_get_rsdp_addr(cfg_tbl_pa, cfg_tbl_len);
+#else
+ return 0;
+#endif
+}
+
+static u8 compute_checksum(u8 *buffer, u32 length)
+{
+ u8 *end = buffer + length;
+ u8 sum = 0;
+
+ while (buffer < end)
+ sum += *(buffer++);
+
+ return sum;
+}
+
+/* Search a block of memory for the RSDP signature. */
+static u8 *scan_mem_for_rsdp(u8 *start, u32 length)
+{
+ struct acpi_table_rsdp *rsdp;
+ u8 *address, *end;
+
+ end = start + length;
+
+ /* Search from given start address for the requested length */
+ for (address = start; address < end; address += ACPI_RSDP_SCAN_STEP) {
+ /*
+ * Both RSDP signature and checksum must be correct.
+ * Note: Sometimes there exists more than one RSDP in memory;
+ * the valid RSDP has a valid checksum, all others have an
+ * invalid checksum.
+ */
+ rsdp = (struct acpi_table_rsdp *)address;
+
+ /* BAD Signature */
+ if (!ACPI_VALIDATE_RSDP_SIG(rsdp->signature))
+ continue;
+
+ /* Check the standard checksum */
+ if (compute_checksum((u8 *)rsdp, ACPI_RSDP_CHECKSUM_LENGTH))
+ continue;
+
+ /* Check extended checksum if table version >= 2 */
+ if ((rsdp->revision >= 2) &&
+ (compute_checksum((u8 *)rsdp, ACPI_RSDP_XCHECKSUM_LENGTH)))
+ continue;
+
+ /* Signature and checksum valid, we have found a real RSDP */
+ return address;
+ }
+ return NULL;
+}
+
+/* Search RSDP address in EBDA. */
+static acpi_physical_address bios_get_rsdp_addr(void)
+{
+ unsigned long address;
+ u8 *rsdp;
+
+ /* Get the location of the Extended BIOS Data Area (EBDA) */
+ address = *(u16 *)ACPI_EBDA_PTR_LOCATION;
+ address <<= 4;
+
+ /*
+ * Search EBDA paragraphs (EBDA is required to be a minimum of
+ * 1K length)
+ */
+ if (address > 0x400) {
+ rsdp = scan_mem_for_rsdp((u8 *)address, ACPI_EBDA_WINDOW_SIZE);
+ if (rsdp)
+ return (acpi_physical_address)(unsigned long)rsdp;
+ }
+
+ /* Search upper memory: 16-byte boundaries in E0000h-FFFFFh */
+ rsdp = scan_mem_for_rsdp((u8 *) ACPI_HI_RSDP_WINDOW_BASE,
+ ACPI_HI_RSDP_WINDOW_SIZE);
+ if (rsdp)
+ return (acpi_physical_address)(unsigned long)rsdp;
+
+ return 0;
+}
+
+/* Return RSDP address on success, otherwise 0. */
+acpi_physical_address get_rsdp_addr(void)
+{
+ acpi_physical_address pa;
+
+ pa = boot_params->acpi_rsdp_addr;
+
+ if (!pa)
+ pa = efi_get_rsdp_addr();
+
+ if (!pa)
+ pa = bios_get_rsdp_addr();
+
+ return pa;
+}
+
+#if defined(CONFIG_RANDOMIZE_BASE) && defined(CONFIG_MEMORY_HOTREMOVE)
+/*
+ * Max length of 64-bit hex address string is 19, prefix "0x" + 16 hex
+ * digits, and '\0' for termination.
+ */
+#define MAX_ADDR_LEN 19
+
+static unsigned long get_cmdline_acpi_rsdp(void)
+{
+ unsigned long addr = 0;
+
+#ifdef CONFIG_KEXEC
+ char val[MAX_ADDR_LEN] = { };
+ int ret;
+
+ ret = cmdline_find_option("acpi_rsdp", val, MAX_ADDR_LEN);
+ if (ret < 0)
+ return 0;
+
+ if (boot_kstrtoul(val, 16, &addr))
+ return 0;
+#endif
+ return addr;
+}
+
+/* Compute SRAT address from RSDP. */
+static unsigned long get_acpi_srat_table(void)
+{
+ unsigned long root_table, acpi_table;
+ struct acpi_table_header *header;
+ struct acpi_table_rsdp *rsdp;
+ u32 num_entries, size, len;
+ char arg[10];
+ u8 *entry;
+
+ /*
+ * Check whether we were given an RSDP on the command line. We don't
+ * stash this in boot params because the kernel itself may have
+ * different ideas about whether to trust a command-line parameter.
+ */
+ rsdp = (struct acpi_table_rsdp *)get_cmdline_acpi_rsdp();
+ if (!rsdp)
+ rsdp = (struct acpi_table_rsdp *)(long)
+ boot_params->acpi_rsdp_addr;
+
+ if (!rsdp)
+ return 0;
+
+ /* Get ACPI root table from RSDP.*/
+ if (!(cmdline_find_option("acpi", arg, sizeof(arg)) == 4 &&
+ !strncmp(arg, "rsdt", 4)) &&
+ rsdp->xsdt_physical_address &&
+ rsdp->revision > 1) {
+ root_table = rsdp->xsdt_physical_address;
+ size = ACPI_XSDT_ENTRY_SIZE;
+ } else {
+ root_table = rsdp->rsdt_physical_address;
+ size = ACPI_RSDT_ENTRY_SIZE;
+ }
+
+ if (!root_table)
+ return 0;
+
+ header = (struct acpi_table_header *)root_table;
+ len = header->length;
+ if (len < sizeof(struct acpi_table_header) + size)
+ return 0;
+
+ num_entries = (len - sizeof(struct acpi_table_header)) / size;
+ entry = (u8 *)(root_table + sizeof(struct acpi_table_header));
+
+ while (num_entries--) {
+ if (size == ACPI_RSDT_ENTRY_SIZE)
+ acpi_table = *(u32 *)entry;
+ else
+ acpi_table = *(u64 *)entry;
+
+ if (acpi_table) {
+ header = (struct acpi_table_header *)acpi_table;
+
+ if (ACPI_COMPARE_NAMESEG(header->signature, ACPI_SIG_SRAT))
+ return acpi_table;
+ }
+ entry += size;
+ }
+ return 0;
+}
+
+/**
+ * count_immovable_mem_regions - Parse SRAT and cache the immovable
+ * memory regions into the immovable_mem array.
+ *
+ * Return the number of immovable memory regions on success, 0 on failure:
+ *
+ * - Too many immovable memory regions
+ * - ACPI off or no SRAT found
+ * - No immovable memory region found.
+ */
+int count_immovable_mem_regions(void)
+{
+ unsigned long table_addr, table_end, table;
+ struct acpi_subtable_header *sub_table;
+ struct acpi_table_header *table_header;
+ char arg[MAX_ACPI_ARG_LENGTH];
+ int num = 0;
+
+ if (cmdline_find_option("acpi", arg, sizeof(arg)) == 3 &&
+ !strncmp(arg, "off", 3))
+ return 0;
+
+ table_addr = get_acpi_srat_table();
+ if (!table_addr)
+ return 0;
+
+ table_header = (struct acpi_table_header *)table_addr;
+ table_end = table_addr + table_header->length;
+ table = table_addr + sizeof(struct acpi_table_srat);
+
+ while (table + sizeof(struct acpi_subtable_header) < table_end) {
+
+ sub_table = (struct acpi_subtable_header *)table;
+ if (!sub_table->length) {
+ debug_putstr("Invalid zero length SRAT subtable.\n");
+ return 0;
+ }
+
+ if (sub_table->type == ACPI_SRAT_TYPE_MEMORY_AFFINITY) {
+ struct acpi_srat_mem_affinity *ma;
+
+ ma = (struct acpi_srat_mem_affinity *)sub_table;
+ if (!(ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) && ma->length) {
+ immovable_mem[num].start = ma->base_address;
+ immovable_mem[num].size = ma->length;
+ num++;
+ }
+
+ if (num >= MAX_NUMNODES*2) {
+ debug_putstr("Too many immovable memory regions, aborting.\n");
+ return 0;
+ }
+ }
+ table += sub_table->length;
+ }
+ return num;
+}
+#endif /* CONFIG_RANDOMIZE_BASE && CONFIG_MEMORY_HOTREMOVE */
diff --git a/arch/x86/boot/compressed/cmdline.c b/arch/x86/boot/compressed/cmdline.c
index cb62f786990d..f1add5d85da9 100644
--- a/arch/x86/boot/compressed/cmdline.c
+++ b/arch/x86/boot/compressed/cmdline.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
#include "misc.h"
static unsigned long fs;
@@ -11,11 +12,19 @@ static inline char rdfs8(addr_t addr)
return *((char *)(fs + addr));
}
#include "../cmdline.c"
+unsigned long get_cmd_line_ptr(void)
+{
+ unsigned long cmd_line_ptr = boot_params->hdr.cmd_line_ptr;
+
+ cmd_line_ptr |= (u64)boot_params->ext_cmd_line_ptr << 32;
+
+ return cmd_line_ptr;
+}
int cmdline_find_option(const char *option, char *buffer, int bufsize)
{
- return __cmdline_find_option(real_mode->hdr.cmd_line_ptr, option, buffer, bufsize);
+ return __cmdline_find_option(get_cmd_line_ptr(), option, buffer, bufsize);
}
int cmdline_find_option_bool(const char *option)
{
- return __cmdline_find_option_bool(real_mode->hdr.cmd_line_ptr, option);
+ return __cmdline_find_option_bool(get_cmd_line_ptr(), option);
}
diff --git a/arch/x86/boot/compressed/cpuflags.c b/arch/x86/boot/compressed/cpuflags.c
new file mode 100644
index 000000000000..0cc1323896d1
--- /dev/null
+++ b/arch/x86/boot/compressed/cpuflags.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "../cpuflags.c"
+
+bool has_cpuflag(int flag)
+{
+ get_cpuflags();
+
+ return test_bit(flag, cpu.flags);
+}
diff --git a/arch/x86/boot/compressed/early_serial_console.c b/arch/x86/boot/compressed/early_serial_console.c
index 261e81fb9582..70a8d1706d0f 100644
--- a/arch/x86/boot/compressed/early_serial_console.c
+++ b/arch/x86/boot/compressed/early_serial_console.c
@@ -1,5 +1,6 @@
#include "misc.h"
-int early_serial_base;
+/* This might be accessed before .bss is cleared, so use .data instead. */
+int early_serial_base __section(".data");
#include "../early_serial_console.c"
diff --git a/arch/x86/boot/compressed/efi.c b/arch/x86/boot/compressed/efi.c
new file mode 100644
index 000000000000..6edd034b0b30
--- /dev/null
+++ b/arch/x86/boot/compressed/efi.c
@@ -0,0 +1,234 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Helpers for early access to EFI configuration table.
+ *
+ * Originally derived from arch/x86/boot/compressed/acpi.c
+ */
+
+#include "misc.h"
+
+/**
+ * efi_get_type - Given a pointer to boot_params, determine the type of EFI environment.
+ *
+ * @bp: pointer to boot_params
+ *
+ * Return: EFI_TYPE_{32,64} for valid EFI environments, EFI_TYPE_NONE otherwise.
+ */
+enum efi_type efi_get_type(struct boot_params *bp)
+{
+ struct efi_info *ei;
+ enum efi_type et;
+ const char *sig;
+
+ ei = &bp->efi_info;
+ sig = (char *)&ei->efi_loader_signature;
+
+ if (!strncmp(sig, EFI64_LOADER_SIGNATURE, 4)) {
+ et = EFI_TYPE_64;
+ } else if (!strncmp(sig, EFI32_LOADER_SIGNATURE, 4)) {
+ et = EFI_TYPE_32;
+ } else {
+ debug_putstr("No EFI environment detected.\n");
+ et = EFI_TYPE_NONE;
+ }
+
+#ifndef CONFIG_X86_64
+ /*
+ * Existing callers like acpi.c treat this case as an indicator to
+ * fall-through to non-EFI, rather than an error, so maintain that
+ * functionality here as well.
+ */
+ if (ei->efi_systab_hi || ei->efi_memmap_hi) {
+ debug_putstr("EFI system table is located above 4GB and cannot be accessed.\n");
+ et = EFI_TYPE_NONE;
+ }
+#endif
+
+ return et;
+}
+
+/**
+ * efi_get_system_table - Given a pointer to boot_params, retrieve the physical address
+ * of the EFI system table.
+ *
+ * @bp: pointer to boot_params
+ *
+ * Return: EFI system table address on success. On error, return 0.
+ */
+unsigned long efi_get_system_table(struct boot_params *bp)
+{
+ unsigned long sys_tbl_pa;
+ struct efi_info *ei;
+ enum efi_type et;
+
+ /* Get systab from boot params. */
+ ei = &bp->efi_info;
+#ifdef CONFIG_X86_64
+ sys_tbl_pa = ei->efi_systab | ((__u64)ei->efi_systab_hi << 32);
+#else
+ sys_tbl_pa = ei->efi_systab;
+#endif
+ if (!sys_tbl_pa) {
+ debug_putstr("EFI system table not found.");
+ return 0;
+ }
+
+ return sys_tbl_pa;
+}
+
+/*
+ * EFI config table address changes to virtual address after boot, which may
+ * not be accessible for the kexec'd kernel. To address this, kexec provides
+ * the initial physical address via a struct setup_data entry, which is
+ * checked for here, along with some sanity checks.
+ */
+static struct efi_setup_data *get_kexec_setup_data(struct boot_params *bp,
+ enum efi_type et)
+{
+#ifdef CONFIG_X86_64
+ struct efi_setup_data *esd = NULL;
+ struct setup_data *data;
+ u64 pa_data;
+
+ pa_data = bp->hdr.setup_data;
+ while (pa_data) {
+ data = (struct setup_data *)pa_data;
+ if (data->type == SETUP_EFI) {
+ esd = (struct efi_setup_data *)(pa_data + sizeof(struct setup_data));
+ break;
+ }
+
+ pa_data = data->next;
+ }
+
+ /*
+ * Original ACPI code falls back to attempting normal EFI boot in these
+ * cases, so maintain existing behavior by indicating non-kexec
+ * environment to the caller, but print them for debugging.
+ */
+ if (esd && !esd->tables) {
+ debug_putstr("kexec EFI environment missing valid configuration table.\n");
+ return NULL;
+ }
+
+ return esd;
+#endif
+ return NULL;
+}
+
+/**
+ * efi_get_conf_table - Given a pointer to boot_params, locate and return the physical
+ * address of EFI configuration table.
+ *
+ * @bp: pointer to boot_params
+ * @cfg_tbl_pa: location to store physical address of config table
+ * @cfg_tbl_len: location to store number of config table entries
+ *
+ * Return: 0 on success. On error, return params are left unchanged.
+ */
+int efi_get_conf_table(struct boot_params *bp, unsigned long *cfg_tbl_pa,
+ unsigned int *cfg_tbl_len)
+{
+ unsigned long sys_tbl_pa;
+ enum efi_type et;
+ int ret;
+
+ if (!cfg_tbl_pa || !cfg_tbl_len)
+ return -EINVAL;
+
+ sys_tbl_pa = efi_get_system_table(bp);
+ if (!sys_tbl_pa)
+ return -EINVAL;
+
+ /* Handle EFI bitness properly */
+ et = efi_get_type(bp);
+ if (et == EFI_TYPE_64) {
+ efi_system_table_64_t *stbl = (efi_system_table_64_t *)sys_tbl_pa;
+ struct efi_setup_data *esd;
+
+ /* kexec provides an alternative EFI conf table, check for it. */
+ esd = get_kexec_setup_data(bp, et);
+
+ *cfg_tbl_pa = esd ? esd->tables : stbl->tables;
+ *cfg_tbl_len = stbl->nr_tables;
+ } else if (et == EFI_TYPE_32) {
+ efi_system_table_32_t *stbl = (efi_system_table_32_t *)sys_tbl_pa;
+
+ *cfg_tbl_pa = stbl->tables;
+ *cfg_tbl_len = stbl->nr_tables;
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* Get vendor table address/guid from EFI config table at the given index */
+static int get_vendor_table(void *cfg_tbl, unsigned int idx,
+ unsigned long *vendor_tbl_pa,
+ efi_guid_t *vendor_tbl_guid,
+ enum efi_type et)
+{
+ if (et == EFI_TYPE_64) {
+ efi_config_table_64_t *tbl_entry = (efi_config_table_64_t *)cfg_tbl + idx;
+
+ if (!IS_ENABLED(CONFIG_X86_64) && tbl_entry->table >> 32) {
+ debug_putstr("Error: EFI config table entry located above 4GB.\n");
+ return -EINVAL;
+ }
+
+ *vendor_tbl_pa = tbl_entry->table;
+ *vendor_tbl_guid = tbl_entry->guid;
+
+ } else if (et == EFI_TYPE_32) {
+ efi_config_table_32_t *tbl_entry = (efi_config_table_32_t *)cfg_tbl + idx;
+
+ *vendor_tbl_pa = tbl_entry->table;
+ *vendor_tbl_guid = tbl_entry->guid;
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * efi_find_vendor_table - Given EFI config table, search it for the physical
+ * address of the vendor table associated with GUID.
+ *
+ * @bp: pointer to boot_params
+ * @cfg_tbl_pa: pointer to EFI configuration table
+ * @cfg_tbl_len: number of entries in EFI configuration table
+ * @guid: GUID of vendor table
+ *
+ * Return: vendor table address on success. On error, return 0.
+ */
+unsigned long efi_find_vendor_table(struct boot_params *bp,
+ unsigned long cfg_tbl_pa,
+ unsigned int cfg_tbl_len,
+ efi_guid_t guid)
+{
+ enum efi_type et;
+ unsigned int i;
+
+ et = efi_get_type(bp);
+ if (et == EFI_TYPE_NONE)
+ return 0;
+
+ for (i = 0; i < cfg_tbl_len; i++) {
+ unsigned long vendor_tbl_pa;
+ efi_guid_t vendor_tbl_guid;
+ int ret;
+
+ ret = get_vendor_table((void *)cfg_tbl_pa, i,
+ &vendor_tbl_pa,
+ &vendor_tbl_guid, et);
+ if (ret)
+ return 0;
+
+ if (!efi_guidcmp(guid, vendor_tbl_guid))
+ return vendor_tbl_pa;
+ }
+
+ return 0;
+}
diff --git a/arch/x86/boot/compressed/efi.h b/arch/x86/boot/compressed/efi.h
new file mode 100644
index 000000000000..7db2f41b54cd
--- /dev/null
+++ b/arch/x86/boot/compressed/efi.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BOOT_COMPRESSED_EFI_H
+#define BOOT_COMPRESSED_EFI_H
+
+#if defined(_LINUX_EFI_H) || defined(_ASM_X86_EFI_H)
+#error Please do not include kernel proper namespace headers
+#endif
+
+typedef guid_t efi_guid_t __aligned(__alignof__(u32));
+
+#define EFI_GUID(a, b, c, d...) (efi_guid_t){ { \
+ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
+ (b) & 0xff, ((b) >> 8) & 0xff, \
+ (c) & 0xff, ((c) >> 8) & 0xff, d } }
+
+#define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
+#define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81)
+#define EFI_CC_BLOB_GUID EFI_GUID(0x067b1f5f, 0xcf26, 0x44c5, 0x85, 0x54, 0x93, 0xd7, 0x77, 0x91, 0x2d, 0x42)
+
+#define EFI32_LOADER_SIGNATURE "EL32"
+#define EFI64_LOADER_SIGNATURE "EL64"
+
+/*
+ * Generic EFI table header
+ */
+typedef struct {
+ u64 signature;
+ u32 revision;
+ u32 headersize;
+ u32 crc32;
+ u32 reserved;
+} efi_table_hdr_t;
+
+#define EFI_CONVENTIONAL_MEMORY 7
+
+#define EFI_MEMORY_MORE_RELIABLE \
+ ((u64)0x0000000000010000ULL) /* higher reliability */
+#define EFI_MEMORY_SP ((u64)0x0000000000040000ULL) /* soft reserved */
+
+#define EFI_PAGE_SHIFT 12
+
+typedef struct {
+ u32 type;
+ u32 pad;
+ u64 phys_addr;
+ u64 virt_addr;
+ u64 num_pages;
+ u64 attribute;
+} efi_memory_desc_t;
+
+#define efi_early_memdesc_ptr(map, desc_size, n) \
+ (efi_memory_desc_t *)((void *)(map) + ((n) * (desc_size)))
+
+typedef struct {
+ efi_guid_t guid;
+ u64 table;
+} efi_config_table_64_t;
+
+typedef struct {
+ efi_guid_t guid;
+ u32 table;
+} efi_config_table_32_t;
+
+typedef struct {
+ efi_table_hdr_t hdr;
+ u64 fw_vendor; /* physical addr of CHAR16 vendor string */
+ u32 fw_revision;
+ u32 __pad1;
+ u64 con_in_handle;
+ u64 con_in;
+ u64 con_out_handle;
+ u64 con_out;
+ u64 stderr_handle;
+ u64 stderr;
+ u64 runtime;
+ u64 boottime;
+ u32 nr_tables;
+ u32 __pad2;
+ u64 tables;
+} efi_system_table_64_t;
+
+typedef struct {
+ efi_table_hdr_t hdr;
+ u32 fw_vendor; /* physical addr of CHAR16 vendor string */
+ u32 fw_revision;
+ u32 con_in_handle;
+ u32 con_in;
+ u32 con_out_handle;
+ u32 con_out;
+ u32 stderr_handle;
+ u32 stderr;
+ u32 runtime;
+ u32 boottime;
+ u32 nr_tables;
+ u32 tables;
+} efi_system_table_32_t;
+
+/* kexec external ABI */
+struct efi_setup_data {
+ u64 fw_vendor;
+ u64 __unused;
+ u64 tables;
+ u64 smbios;
+ u64 reserved[8];
+};
+
+static inline int efi_guidcmp (efi_guid_t left, efi_guid_t right)
+{
+ return memcmp(&left, &right, sizeof (efi_guid_t));
+}
+
+#ifdef CONFIG_EFI
+bool __pure __efi_soft_reserve_enabled(void);
+
+static inline bool __pure efi_soft_reserve_enabled(void)
+{
+ return IS_ENABLED(CONFIG_EFI_SOFT_RESERVE)
+ && __efi_soft_reserve_enabled();
+}
+#else
+static inline bool efi_soft_reserve_enabled(void)
+{
+ return false;
+}
+#endif /* CONFIG_EFI */
+#endif /* BOOT_COMPRESSED_EFI_H */
diff --git a/arch/x86/boot/compressed/efi_mixed.S b/arch/x86/boot/compressed/efi_mixed.S
new file mode 100644
index 000000000000..4ca70bf93dc0
--- /dev/null
+++ b/arch/x86/boot/compressed/efi_mixed.S
@@ -0,0 +1,345 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 2014, 2015 Intel Corporation; author Matt Fleming
+ *
+ * Early support for invoking 32-bit EFI services from a 64-bit kernel.
+ *
+ * Because this thunking occurs before ExitBootServices() we have to
+ * restore the firmware's 32-bit GDT and IDT before we make EFI service
+ * calls.
+ *
+ * On the plus side, we don't have to worry about mangling 64-bit
+ * addresses into 32-bits because we're executing with an identity
+ * mapped pagetable and haven't transitioned to 64-bit virtual addresses
+ * yet.
+ */
+
+#include <linux/linkage.h>
+#include <asm/msr.h>
+#include <asm/page_types.h>
+#include <asm/processor-flags.h>
+#include <asm/segment.h>
+
+ .code64
+ .text
+/*
+ * When booting in 64-bit mode on 32-bit EFI firmware, startup_64_mixed_mode()
+ * is the first thing that runs after switching to long mode. Depending on
+ * whether the EFI handover protocol or the compat entry point was used to
+ * enter the kernel, it will either branch to the 64-bit EFI handover
+ * entrypoint at offset 0x390 in the image, or to the 64-bit EFI PE/COFF
+ * entrypoint efi_pe_entry(). In the former case, the bootloader must provide a
+ * struct bootparams pointer as the third argument, so the presence of such a
+ * pointer is used to disambiguate.
+ *
+ * +--------------+
+ * +------------------+ +------------+ +------>| efi_pe_entry |
+ * | efi32_pe_entry |---->| | | +-----------+--+
+ * +------------------+ | | +------+----------------+ |
+ * | startup_32 |---->| startup_64_mixed_mode | |
+ * +------------------+ | | +------+----------------+ V
+ * | efi32_stub_entry |---->| | | +------------------+
+ * +------------------+ +------------+ +---->| efi64_stub_entry |
+ * +-------------+----+
+ * +------------+ +----------+ |
+ * | startup_64 |<----| efi_main |<--------------+
+ * +------------+ +----------+
+ */
+SYM_FUNC_START(startup_64_mixed_mode)
+ lea efi32_boot_args(%rip), %rdx
+ mov 0(%rdx), %edi
+ mov 4(%rdx), %esi
+ mov 8(%rdx), %edx // saved bootparams pointer
+ test %edx, %edx
+ jnz efi64_stub_entry
+ /*
+ * efi_pe_entry uses MS calling convention, which requires 32 bytes of
+ * shadow space on the stack even if all arguments are passed in
+ * registers. We also need an additional 8 bytes for the space that
+ * would be occupied by the return address, and this also results in
+ * the correct stack alignment for entry.
+ */
+ sub $40, %rsp
+ mov %rdi, %rcx // MS calling convention
+ mov %rsi, %rdx
+ jmp efi_pe_entry
+SYM_FUNC_END(startup_64_mixed_mode)
+
+SYM_FUNC_START(__efi64_thunk)
+ push %rbp
+ push %rbx
+
+ movl %ds, %eax
+ push %rax
+ movl %es, %eax
+ push %rax
+ movl %ss, %eax
+ push %rax
+
+ /* Copy args passed on stack */
+ movq 0x30(%rsp), %rbp
+ movq 0x38(%rsp), %rbx
+ movq 0x40(%rsp), %rax
+
+ /*
+ * Convert x86-64 ABI params to i386 ABI
+ */
+ subq $64, %rsp
+ movl %esi, 0x0(%rsp)
+ movl %edx, 0x4(%rsp)
+ movl %ecx, 0x8(%rsp)
+ movl %r8d, 0xc(%rsp)
+ movl %r9d, 0x10(%rsp)
+ movl %ebp, 0x14(%rsp)
+ movl %ebx, 0x18(%rsp)
+ movl %eax, 0x1c(%rsp)
+
+ leaq 0x20(%rsp), %rbx
+ sgdt (%rbx)
+ sidt 16(%rbx)
+
+ leaq 1f(%rip), %rbp
+
+ /*
+ * Switch to IDT and GDT with 32-bit segments. These are the firmware
+ * GDT and IDT that were installed when the kernel started executing.
+ * The pointers were saved by the efi32_entry() routine below.
+ *
+ * Pass the saved DS selector to the 32-bit code, and use far return to
+ * restore the saved CS selector.
+ */
+ lidt efi32_boot_idt(%rip)
+ lgdt efi32_boot_gdt(%rip)
+
+ movzwl efi32_boot_ds(%rip), %edx
+ movzwq efi32_boot_cs(%rip), %rax
+ pushq %rax
+ leaq efi_enter32(%rip), %rax
+ pushq %rax
+ lretq
+
+1: addq $64, %rsp
+ movq %rdi, %rax
+
+ pop %rbx
+ movl %ebx, %ss
+ pop %rbx
+ movl %ebx, %es
+ pop %rbx
+ movl %ebx, %ds
+ /* Clear out 32-bit selector from FS and GS */
+ xorl %ebx, %ebx
+ movl %ebx, %fs
+ movl %ebx, %gs
+
+ pop %rbx
+ pop %rbp
+ RET
+SYM_FUNC_END(__efi64_thunk)
+
+ .code32
+/*
+ * EFI service pointer must be in %edi.
+ *
+ * The stack should represent the 32-bit calling convention.
+ */
+SYM_FUNC_START_LOCAL(efi_enter32)
+ /* Load firmware selector into data and stack segment registers */
+ movl %edx, %ds
+ movl %edx, %es
+ movl %edx, %fs
+ movl %edx, %gs
+ movl %edx, %ss
+
+ /* Reload pgtables */
+ movl %cr3, %eax
+ movl %eax, %cr3
+
+ /* Disable paging */
+ movl %cr0, %eax
+ btrl $X86_CR0_PG_BIT, %eax
+ movl %eax, %cr0
+
+ /* Disable long mode via EFER */
+ movl $MSR_EFER, %ecx
+ rdmsr
+ btrl $_EFER_LME, %eax
+ wrmsr
+
+ call *%edi
+
+ /* We must preserve return value */
+ movl %eax, %edi
+
+ /*
+ * Some firmware will return with interrupts enabled. Be sure to
+ * disable them before we switch GDTs and IDTs.
+ */
+ cli
+
+ lidtl 16(%ebx)
+ lgdtl (%ebx)
+
+ movl %cr4, %eax
+ btsl $(X86_CR4_PAE_BIT), %eax
+ movl %eax, %cr4
+
+ movl %cr3, %eax
+ movl %eax, %cr3
+
+ movl $MSR_EFER, %ecx
+ rdmsr
+ btsl $_EFER_LME, %eax
+ wrmsr
+
+ xorl %eax, %eax
+ lldt %ax
+
+ pushl $__KERNEL_CS
+ pushl %ebp
+
+ /* Enable paging */
+ movl %cr0, %eax
+ btsl $X86_CR0_PG_BIT, %eax
+ movl %eax, %cr0
+ lret
+SYM_FUNC_END(efi_enter32)
+
+/*
+ * This is the common EFI stub entry point for mixed mode.
+ *
+ * Arguments: %ecx image handle
+ * %edx EFI system table pointer
+ * %esi struct bootparams pointer (or NULL when not using
+ * the EFI handover protocol)
+ *
+ * Since this is the point of no return for ordinary execution, no registers
+ * are considered live except for the function parameters. [Note that the EFI
+ * stub may still exit and return to the firmware using the Exit() EFI boot
+ * service.]
+ */
+SYM_FUNC_START(efi32_entry)
+ call 1f
+1: pop %ebx
+
+ /* Save firmware GDTR and code/data selectors */
+ sgdtl (efi32_boot_gdt - 1b)(%ebx)
+ movw %cs, (efi32_boot_cs - 1b)(%ebx)
+ movw %ds, (efi32_boot_ds - 1b)(%ebx)
+
+ /* Store firmware IDT descriptor */
+ sidtl (efi32_boot_idt - 1b)(%ebx)
+
+ /* Store boot arguments */
+ leal (efi32_boot_args - 1b)(%ebx), %ebx
+ movl %ecx, 0(%ebx)
+ movl %edx, 4(%ebx)
+ movl %esi, 8(%ebx)
+ movb $0x0, 12(%ebx) // efi_is64
+
+ /* Disable paging */
+ movl %cr0, %eax
+ btrl $X86_CR0_PG_BIT, %eax
+ movl %eax, %cr0
+
+ jmp startup_32
+SYM_FUNC_END(efi32_entry)
+
+#define ST32_boottime 60 // offsetof(efi_system_table_32_t, boottime)
+#define BS32_handle_protocol 88 // offsetof(efi_boot_services_32_t, handle_protocol)
+#define LI32_image_base 32 // offsetof(efi_loaded_image_32_t, image_base)
+
+/*
+ * efi_status_t efi32_pe_entry(efi_handle_t image_handle,
+ * efi_system_table_32_t *sys_table)
+ */
+SYM_FUNC_START(efi32_pe_entry)
+ pushl %ebp
+ movl %esp, %ebp
+ pushl %eax // dummy push to allocate loaded_image
+
+ pushl %ebx // save callee-save registers
+ pushl %edi
+
+ call verify_cpu // check for long mode support
+ testl %eax, %eax
+ movl $0x80000003, %eax // EFI_UNSUPPORTED
+ jnz 2f
+
+ call 1f
+1: pop %ebx
+
+ /* Get the loaded image protocol pointer from the image handle */
+ leal -4(%ebp), %eax
+ pushl %eax // &loaded_image
+ leal (loaded_image_proto - 1b)(%ebx), %eax
+ pushl %eax // pass the GUID address
+ pushl 8(%ebp) // pass the image handle
+
+ /*
+ * Note the alignment of the stack frame.
+ * sys_table
+ * handle <-- 16-byte aligned on entry by ABI
+ * return address
+ * frame pointer
+ * loaded_image <-- local variable
+ * saved %ebx <-- 16-byte aligned here
+ * saved %edi
+ * &loaded_image
+ * &loaded_image_proto
+ * handle <-- 16-byte aligned for call to handle_protocol
+ */
+
+ movl 12(%ebp), %eax // sys_table
+ movl ST32_boottime(%eax), %eax // sys_table->boottime
+ call *BS32_handle_protocol(%eax) // sys_table->boottime->handle_protocol
+ addl $12, %esp // restore argument space
+ testl %eax, %eax
+ jnz 2f
+
+ movl 8(%ebp), %ecx // image_handle
+ movl 12(%ebp), %edx // sys_table
+ movl -4(%ebp), %esi // loaded_image
+ movl LI32_image_base(%esi), %esi // loaded_image->image_base
+ leal (startup_32 - 1b)(%ebx), %ebp // runtime address of startup_32
+ /*
+ * We need to set the image_offset variable here since startup_32() will
+ * use it before we get to the 64-bit efi_pe_entry() in C code.
+ */
+ subl %esi, %ebp // calculate image_offset
+ movl %ebp, (image_offset - 1b)(%ebx) // save image_offset
+ xorl %esi, %esi
+ jmp efi32_entry // pass %ecx, %edx, %esi
+ // no other registers remain live
+
+2: popl %edi // restore callee-save registers
+ popl %ebx
+ leave
+ RET
+SYM_FUNC_END(efi32_pe_entry)
+
+ .section ".rodata"
+ /* EFI loaded image protocol GUID */
+ .balign 4
+SYM_DATA_START_LOCAL(loaded_image_proto)
+ .long 0x5b1b31a1
+ .word 0x9562, 0x11d2
+ .byte 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b
+SYM_DATA_END(loaded_image_proto)
+
+ .data
+ .balign 8
+SYM_DATA_START_LOCAL(efi32_boot_gdt)
+ .word 0
+ .quad 0
+SYM_DATA_END(efi32_boot_gdt)
+
+SYM_DATA_START_LOCAL(efi32_boot_idt)
+ .word 0
+ .quad 0
+SYM_DATA_END(efi32_boot_idt)
+
+SYM_DATA_LOCAL(efi32_boot_cs, .word 0)
+SYM_DATA_LOCAL(efi32_boot_ds, .word 0)
+SYM_DATA_LOCAL(efi32_boot_args, .long 0, 0, 0)
+SYM_DATA(efi_is64, .byte 1)
diff --git a/arch/x86/boot/compressed/error.c b/arch/x86/boot/compressed/error.c
new file mode 100644
index 000000000000..c881878e56d3
--- /dev/null
+++ b/arch/x86/boot/compressed/error.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Callers outside of misc.c need access to the error reporting routines,
+ * but the *_putstr() functions need to stay in misc.c because of how
+ * memcpy() and memmove() are defined for the compressed boot environment.
+ */
+#include "misc.h"
+#include "error.h"
+
+void warn(char *m)
+{
+ error_putstr("\n\n");
+ error_putstr(m);
+ error_putstr("\n\n");
+}
+
+void error(char *m)
+{
+ warn(m);
+ error_putstr(" -- System halted");
+
+ while (1)
+ asm("hlt");
+}
diff --git a/arch/x86/boot/compressed/error.h b/arch/x86/boot/compressed/error.h
new file mode 100644
index 000000000000..1de5821184f1
--- /dev/null
+++ b/arch/x86/boot/compressed/error.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BOOT_COMPRESSED_ERROR_H
+#define BOOT_COMPRESSED_ERROR_H
+
+#include <linux/compiler.h>
+
+void warn(char *m);
+void error(char *m) __noreturn;
+
+#endif /* BOOT_COMPRESSED_ERROR_H */
diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S
index 67a655a39ce4..987ae727cf9f 100644
--- a/arch/x86/boot/compressed/head_32.S
+++ b/arch/x86/boot/compressed/head_32.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* linux/boot/head.S
*
@@ -29,25 +30,22 @@
#include <asm/page_types.h>
#include <asm/boot.h>
#include <asm/asm-offsets.h>
+#include <asm/bootparam.h>
+
+/*
+ * These symbols needed to be marked as .hidden to prevent the BFD linker from
+ * generating R_386_32 (rather than R_386_RELATIVE) relocations for them when
+ * the 32-bit compressed kernel is linked as PIE. This is no longer necessary,
+ * but it doesn't hurt to keep them .hidden.
+ */
+ .hidden _bss
+ .hidden _ebss
+ .hidden _end
__HEAD
-ENTRY(startup_32)
+SYM_FUNC_START(startup_32)
cld
- /*
- * Test KEEP_SEGMENTS flag to see if the bootloader is asking
- * us to not reload segments
- */
- testb $(1<<6), BP_loadflags(%esi)
- jnz 1f
-
cli
- movl $__BOOT_DS, %eax
- movl %eax, %ds
- movl %eax, %es
- movl %eax, %fs
- movl %eax, %gs
- movl %eax, %ss
-1:
/*
* Calculate the delta between where we were compiled to run
@@ -59,31 +57,64 @@ ENTRY(startup_32)
*/
leal (BP_scratch+4)(%esi), %esp
call 1f
-1: popl %ebp
- subl $1b, %ebp
+1: popl %edx
+ addl $_GLOBAL_OFFSET_TABLE_+(.-1b), %edx
+
+ /* Load new GDT */
+ leal gdt@GOTOFF(%edx), %eax
+ movl %eax, 2(%eax)
+ lgdt (%eax)
+
+ /* Load segment registers with our descriptors */
+ movl $__BOOT_DS, %eax
+ movl %eax, %ds
+ movl %eax, %es
+ movl %eax, %fs
+ movl %eax, %gs
+ movl %eax, %ss
/*
- * %ebp contains the address we are loaded at by the boot loader and %ebx
- * contains the address where we should move the kernel image temporarily
- * for safe in-place decompression.
+ * %edx contains the address we are loaded at by the boot loader (plus the
+ * offset to the GOT). The below code calculates %ebx to be the address where
+ * we should move the kernel image temporarily for safe in-place decompression
+ * (again, plus the offset to the GOT).
+ *
+ * %ebp is calculated to be the address that the kernel will be decompressed to.
*/
#ifdef CONFIG_RELOCATABLE
- movl %ebp, %ebx
+ leal startup_32@GOTOFF(%edx), %ebx
+
+#ifdef CONFIG_EFI_STUB
+/*
+ * If we were loaded via the EFI LoadImage service, startup_32() will be at an
+ * offset to the start of the space allocated for the image. efi_pe_entry() will
+ * set up image_offset to tell us where the image actually starts, so that we
+ * can use the full available buffer.
+ * image_offset = startup_32 - image_base
+ * Otherwise image_offset will be zero and has no effect on the calculations.
+ */
+ subl image_offset@GOTOFF(%edx), %ebx
+#endif
+
movl BP_kernel_alignment(%esi), %eax
decl %eax
addl %eax, %ebx
notl %eax
andl %eax, %ebx
-#else
- movl $LOAD_PHYSICAL_ADDR, %ebx
+ cmpl $LOAD_PHYSICAL_ADDR, %ebx
+ jae 1f
#endif
+ movl $LOAD_PHYSICAL_ADDR, %ebx
+1:
+ movl %ebx, %ebp // Save the output address for later
/* Target address to relocate to for decompression */
- addl $z_extract_offset, %ebx
+ addl BP_init_size(%esi), %ebx
+ subl $_end@GOTOFF, %ebx
/* Set up the stack */
- leal boot_stack_end(%ebx), %esp
+ leal boot_stack_end@GOTOFF(%ebx), %esp
/* Zero EFLAGS */
pushl $0
@@ -94,8 +125,8 @@ ENTRY(startup_32)
* where decompression in place becomes safe.
*/
pushl %esi
- leal (_bss-4)(%ebp), %esi
- leal (_bss-4)(%ebx), %edi
+ leal (_bss@GOTOFF-4)(%edx), %esi
+ leal (_bss@GOTOFF-4)(%ebx), %edi
movl $(_bss - startup_32), %ecx
shrl $2, %ecx
std
@@ -103,85 +134,79 @@ ENTRY(startup_32)
cld
popl %esi
+ /*
+ * The GDT may get overwritten either during the copy we just did or
+ * during extract_kernel below. To avoid any issues, repoint the GDTR
+ * to the new copy of the GDT.
+ */
+ leal gdt@GOTOFF(%ebx), %eax
+ movl %eax, 2(%eax)
+ lgdt (%eax)
+
/*
* Jump to the relocated address.
*/
- leal relocated(%ebx), %eax
+ leal .Lrelocated@GOTOFF(%ebx), %eax
+ jmp *%eax
+SYM_FUNC_END(startup_32)
+
+#ifdef CONFIG_EFI_STUB
+SYM_FUNC_START(efi32_stub_entry)
+ add $0x4, %esp
+ movl 8(%esp), %esi /* save boot_params pointer */
+ call efi_main
+ /* efi_main returns the possibly relocated address of startup_32 */
jmp *%eax
-ENDPROC(startup_32)
+SYM_FUNC_END(efi32_stub_entry)
+SYM_FUNC_ALIAS(efi_stub_entry, efi32_stub_entry)
+#endif
.text
-relocated:
+SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated)
/*
* Clear BSS (stack is currently empty)
*/
xorl %eax, %eax
- leal _bss(%ebx), %edi
- leal _ebss(%ebx), %ecx
+ leal _bss@GOTOFF(%ebx), %edi
+ leal _ebss@GOTOFF(%ebx), %ecx
subl %edi, %ecx
shrl $2, %ecx
rep stosl
/*
- * Adjust our own GOT
- */
- leal _got(%ebx), %edx
- leal _egot(%ebx), %ecx
-1:
- cmpl %ecx, %edx
- jae 2f
- addl %ebx, (%edx)
- addl $4, %edx
- jmp 1b
-2:
-
-/*
- * Do the decompression, and jump to the new kernel..
- */
- leal z_extract_offset_negative(%ebx), %ebp
- /* push arguments for decompress_kernel: */
- pushl %ebp /* output address */
- pushl $z_input_len /* input_len */
- leal input_data(%ebx), %eax
- pushl %eax /* input_data */
- leal boot_heap(%ebx), %eax
- pushl %eax /* heap area */
- pushl %esi /* real mode pointer */
- call decompress_kernel
- addl $20, %esp
-
-#if CONFIG_RELOCATABLE
-/*
- * Find the address of the relocations.
- */
- leal z_output_len(%ebp), %edi
-
-/*
- * Calculate the delta between where vmlinux was compiled to run
- * and where it was actually loaded.
- */
- movl %ebp, %ebx
- subl $LOAD_PHYSICAL_ADDR, %ebx
- jz 2f /* Nothing to be done if loaded at compiled addr. */
-/*
- * Process relocations.
+ * Do the extraction, and jump to the new kernel..
*/
-
-1: subl $4, %edi
- movl (%edi), %ecx
- testl %ecx, %ecx
- jz 2f
- addl %ebx, -__PAGE_OFFSET(%ebx, %ecx)
- jmp 1b
-2:
-#endif
+ /* push arguments for extract_kernel: */
+
+ pushl output_len@GOTOFF(%ebx) /* decompressed length, end of relocs */
+ pushl %ebp /* output address */
+ pushl input_len@GOTOFF(%ebx) /* input_len */
+ leal input_data@GOTOFF(%ebx), %eax
+ pushl %eax /* input_data */
+ leal boot_heap@GOTOFF(%ebx), %eax
+ pushl %eax /* heap area */
+ pushl %esi /* real mode pointer */
+ call extract_kernel /* returns kernel entry point in %eax */
+ addl $24, %esp
/*
- * Jump to the decompressed kernel.
+ * Jump to the extracted kernel.
*/
xorl %ebx, %ebx
- jmp *%ebp
+ jmp *%eax
+SYM_FUNC_END(.Lrelocated)
+
+ .data
+ .balign 8
+SYM_DATA_START_LOCAL(gdt)
+ .word gdt_end - gdt - 1
+ .long 0
+ .word 0
+ .quad 0x0000000000000000 /* Reserved */
+ .quad 0x00cf9a000000ffff /* __KERNEL_CS */
+ .quad 0x00cf92000000ffff /* __KERNEL_DS */
+SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)
/*
* Stack and heap for uncompression
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index 35af09d13dc1..03c4328a88cb 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* linux/boot/head.S
*
@@ -27,30 +28,67 @@
#include <linux/init.h>
#include <linux/linkage.h>
#include <asm/segment.h>
-#include <asm/pgtable_types.h>
-#include <asm/page_types.h>
#include <asm/boot.h>
#include <asm/msr.h>
#include <asm/processor-flags.h>
#include <asm/asm-offsets.h>
+#include <asm/bootparam.h>
+#include <asm/desc_defs.h>
+#include <asm/trapnr.h>
+#include "pgtable.h"
+
+/*
+ * Fix alignment at 16 bytes. Following CONFIG_FUNCTION_ALIGNMENT will result
+ * in assembly errors due to trying to move .org backward due to the excessive
+ * alignment.
+ */
+#undef __ALIGN
+#define __ALIGN .balign 16, 0x90
+
+/*
+ * Locally defined symbols should be marked hidden:
+ */
+ .hidden _bss
+ .hidden _ebss
+ .hidden _end
__HEAD
+
+/*
+ * This macro gives the relative virtual address of X, i.e. the offset of X
+ * from startup_32. This is the same as the link-time virtual address of X,
+ * since startup_32 is at 0, but defining it this way tells the
+ * assembler/linker that we do not want the actual run-time address of X. This
+ * prevents the linker from trying to create unwanted run-time relocation
+ * entries for the reference when the compressed kernel is linked as PIE.
+ *
+ * A reference X(%reg) will result in the link-time VA of X being stored with
+ * the instruction, and a run-time R_X86_64_RELATIVE relocation entry that
+ * adds the 64-bit base address where the kernel is loaded.
+ *
+ * Replacing it with (X-startup_32)(%reg) results in the offset being stored,
+ * and no run-time relocation.
+ *
+ * The macro should be used as a displacement with a base register containing
+ * the run-time address of startup_32 [i.e. rva(X)(%reg)], or as an immediate
+ * [$ rva(X)].
+ *
+ * This macro can only be used from within the .head.text section, since the
+ * expression requires startup_32 to be in the same section as the code being
+ * assembled.
+ */
+#define rva(X) ((X) - startup_32)
+
.code32
-ENTRY(startup_32)
- cld
+SYM_FUNC_START(startup_32)
/*
- * Test KEEP_SEGMENTS flag to see if the bootloader is asking
- * us to not reload segments
+ * 32bit entry is 0 and it is ABI so immutable!
+ * If we come here directly from a bootloader,
+ * kernel(text+data+bss+brk) ramdisk, zero_page, command line
+ * all need to be under the 4G limit.
*/
- testb $(1<<6), BP_loadflags(%esi)
- jnz 1f
-
+ cld
cli
- movl $(__KERNEL_DS), %eax
- movl %eax, %ds
- movl %eax, %es
- movl %eax, %ss
-1:
/*
* Calculate the delta between where we were compiled to run
@@ -63,16 +101,39 @@ ENTRY(startup_32)
leal (BP_scratch+4)(%esi), %esp
call 1f
1: popl %ebp
- subl $1b, %ebp
+ subl $ rva(1b), %ebp
-/* setup a stack and make sure cpu supports long mode. */
- movl $boot_stack_end, %eax
- addl %ebp, %eax
- movl %eax, %esp
+ /* Load new GDT with the 64bit segments using 32bit descriptor */
+ leal rva(gdt)(%ebp), %eax
+ movl %eax, 2(%eax)
+ lgdt (%eax)
+ /* Load segment registers with our descriptors */
+ movl $__BOOT_DS, %eax
+ movl %eax, %ds
+ movl %eax, %es
+ movl %eax, %fs
+ movl %eax, %gs
+ movl %eax, %ss
+
+ /* Setup a stack and load CS from current GDT */
+ leal rva(boot_stack_end)(%ebp), %esp
+
+ pushl $__KERNEL32_CS
+ leal rva(1f)(%ebp), %eax
+ pushl %eax
+ lretl
+1:
+
+ /* Setup Exception handling for SEV-ES */
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+ call startup32_load_idt
+#endif
+
+ /* Make sure cpu supports long mode. */
call verify_cpu
testl %eax, %eax
- jnz no_longmode
+ jnz .Lno_longmode
/*
* Compute the delta between where we were compiled to run at
@@ -85,67 +146,106 @@ ENTRY(startup_32)
#ifdef CONFIG_RELOCATABLE
movl %ebp, %ebx
+
+#ifdef CONFIG_EFI_STUB
+/*
+ * If we were loaded via the EFI LoadImage service, startup_32 will be at an
+ * offset to the start of the space allocated for the image. efi_pe_entry will
+ * set up image_offset to tell us where the image actually starts, so that we
+ * can use the full available buffer.
+ * image_offset = startup_32 - image_base
+ * Otherwise image_offset will be zero and has no effect on the calculations.
+ */
+ subl rva(image_offset)(%ebp), %ebx
+#endif
+
movl BP_kernel_alignment(%esi), %eax
decl %eax
addl %eax, %ebx
notl %eax
andl %eax, %ebx
-#else
- movl $LOAD_PHYSICAL_ADDR, %ebx
+ cmpl $LOAD_PHYSICAL_ADDR, %ebx
+ jae 1f
#endif
+ movl $LOAD_PHYSICAL_ADDR, %ebx
+1:
/* Target address to relocate to for decompression */
- addl $z_extract_offset, %ebx
+ addl BP_init_size(%esi), %ebx
+ subl $ rva(_end), %ebx
/*
* Prepare for entering 64 bit mode
*/
- /* Load new GDT with the 64bit segments using 32bit descriptor */
- leal gdt(%ebp), %eax
- movl %eax, gdt+2(%ebp)
- lgdt gdt(%ebp)
-
/* Enable PAE mode */
- movl $(X86_CR4_PAE), %eax
+ movl %cr4, %eax
+ orl $X86_CR4_PAE, %eax
movl %eax, %cr4
/*
* Build early 4G boot pagetable
*/
+ /*
+ * If SEV is active then set the encryption mask in the page tables.
+ * This will ensure that when the kernel is copied and decompressed
+ * it will be done so encrypted.
+ */
+ xorl %edx, %edx
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+ call get_sev_encryption_bit
+ xorl %edx, %edx
+ testl %eax, %eax
+ jz 1f
+ subl $32, %eax /* Encryption bit is always above bit 31 */
+ bts %eax, %edx /* Set encryption mask for page tables */
+ /*
+ * Set MSR_AMD64_SEV_ENABLED_BIT in sev_status so that
+ * startup32_check_sev_cbit() will do a check. sev_enable() will
+ * initialize sev_status with all the bits reported by
+ * MSR_AMD_SEV_STATUS later, but only MSR_AMD64_SEV_ENABLED_BIT
+ * needs to be set for now.
+ */
+ movl $1, rva(sev_status)(%ebp)
+1:
+#endif
+
/* Initialize Page tables to 0 */
- leal pgtable(%ebx), %edi
+ leal rva(pgtable)(%ebx), %edi
xorl %eax, %eax
- movl $((4096*6)/4), %ecx
+ movl $(BOOT_INIT_PGT_SIZE/4), %ecx
rep stosl
/* Build Level 4 */
- leal pgtable + 0(%ebx), %edi
+ leal rva(pgtable + 0)(%ebx), %edi
leal 0x1007 (%edi), %eax
movl %eax, 0(%edi)
+ addl %edx, 4(%edi)
/* Build Level 3 */
- leal pgtable + 0x1000(%ebx), %edi
+ leal rva(pgtable + 0x1000)(%ebx), %edi
leal 0x1007(%edi), %eax
movl $4, %ecx
1: movl %eax, 0x00(%edi)
+ addl %edx, 0x04(%edi)
addl $0x00001000, %eax
addl $8, %edi
decl %ecx
jnz 1b
/* Build Level 2 */
- leal pgtable + 0x2000(%ebx), %edi
+ leal rva(pgtable + 0x2000)(%ebx), %edi
movl $0x00000183, %eax
movl $2048, %ecx
1: movl %eax, 0(%edi)
+ addl %edx, 4(%edi)
addl $0x00200000, %eax
addl $8, %edi
decl %ecx
jnz 1b
/* Enable the boot page tables */
- leal pgtable(%ebx), %eax
+ leal rva(pgtable)(%ebx), %eax
movl %eax, %cr3
/* Enable Long mode in EFER (Extended Feature Enable Register) */
@@ -154,52 +254,74 @@ ENTRY(startup_32)
btsl $_EFER_LME, %eax
wrmsr
+ /* After gdt is loaded */
+ xorl %eax, %eax
+ lldt %ax
+ movl $__BOOT_TSS, %eax
+ ltr %ax
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+ /* Check if the C-bit position is correct when SEV is active */
+ call startup32_check_sev_cbit
+#endif
+
/*
* Setup for the jump to 64bit mode
*
- * When the jump is performend we will be in long mode but
+ * When the jump is performed we will be in long mode but
* in 32bit compatibility mode with EFER.LME = 1, CS.L = 0, CS.D = 1
* (and in turn EFER.LMA = 1). To jump into 64bit mode we use
* the new gdt/idt that has __KERNEL_CS with CS.L = 1.
* We place all of the values on our mini stack so lret can
* used to perform that far jump.
*/
+ leal rva(startup_64)(%ebp), %eax
+#ifdef CONFIG_EFI_MIXED
+ cmpb $1, rva(efi_is64)(%ebp)
+ je 1f
+ leal rva(startup_64_mixed_mode)(%ebp), %eax
+1:
+#endif
+
pushl $__KERNEL_CS
- leal startup_64(%ebp), %eax
pushl %eax
/* Enter paged protected Mode, activating Long Mode */
- movl $(X86_CR0_PG | X86_CR0_PE), %eax /* Enable Paging and Protected mode */
+ movl $CR0_STATE, %eax
movl %eax, %cr0
/* Jump from 32bit compatibility mode into 64bit mode. */
lret
-ENDPROC(startup_32)
-
-no_longmode:
- /* This isn't an x86-64 CPU so hang */
-1:
- hlt
- jmp 1b
-
-#include "../../kernel/verify_cpu.S"
+SYM_FUNC_END(startup_32)
+
+#if IS_ENABLED(CONFIG_EFI_MIXED) && IS_ENABLED(CONFIG_EFI_HANDOVER_PROTOCOL)
+ .org 0x190
+SYM_FUNC_START(efi32_stub_entry)
+ add $0x4, %esp /* Discard return address */
+ popl %ecx
+ popl %edx
+ popl %esi
+ jmp efi32_entry
+SYM_FUNC_END(efi32_stub_entry)
+#endif
- /*
- * Be careful here startup_64 needs to be at a predictable
- * address so I can export it in an ELF header. Bootloaders
- * should look at the ELF header to find this address, as
- * it may change in the future.
- */
.code64
.org 0x200
-ENTRY(startup_64)
+SYM_CODE_START(startup_64)
/*
+ * 64bit entry is 0x200 and it is ABI so immutable!
* We come here either from startup_32 or directly from a
- * 64bit bootloader. If we come here from a bootloader we depend on
- * an identity mapped page table being provied that maps our
- * entire text+data+bss and hopefully all of memory.
+ * 64bit bootloader.
+ * If we come here from a bootloader, kernel(text+data+bss+brk),
+ * ramdisk, zero_page, command line could be above 4G.
+ * We depend on an identity mapped page table being provided
+ * that maps our entire kernel(text+data+bss+brk), zero page
+ * and command line.
*/
+ cld
+ cli
+
/* Setup data segments. */
xorl %eax, %eax
movl %eax, %ds
@@ -207,9 +329,6 @@ ENTRY(startup_64)
movl %eax, %ss
movl %eax, %fs
movl %eax, %gs
- lldt %ax
- movl $0x20, %eax
- ltr %ax
/*
* Compute the decompressed kernel start address. It is where
@@ -227,20 +346,147 @@ ENTRY(startup_64)
/* Start with the delta to where the kernel will run at. */
#ifdef CONFIG_RELOCATABLE
leaq startup_32(%rip) /* - $startup_32 */, %rbp
+
+#ifdef CONFIG_EFI_STUB
+/*
+ * If we were loaded via the EFI LoadImage service, startup_32 will be at an
+ * offset to the start of the space allocated for the image. efi_pe_entry will
+ * set up image_offset to tell us where the image actually starts, so that we
+ * can use the full available buffer.
+ * image_offset = startup_32 - image_base
+ * Otherwise image_offset will be zero and has no effect on the calculations.
+ */
+ movl image_offset(%rip), %eax
+ subq %rax, %rbp
+#endif
+
movl BP_kernel_alignment(%rsi), %eax
decl %eax
addq %rax, %rbp
notq %rax
andq %rax, %rbp
-#else
- movq $LOAD_PHYSICAL_ADDR, %rbp
+ cmpq $LOAD_PHYSICAL_ADDR, %rbp
+ jae 1f
#endif
+ movq $LOAD_PHYSICAL_ADDR, %rbp
+1:
/* Target address to relocate to for decompression */
- leaq z_extract_offset(%rbp), %rbx
+ movl BP_init_size(%rsi), %ebx
+ subl $ rva(_end), %ebx
+ addq %rbp, %rbx
/* Set up the stack */
- leaq boot_stack_end(%rbx), %rsp
+ leaq rva(boot_stack_end)(%rbx), %rsp
+
+ /*
+ * At this point we are in long mode with 4-level paging enabled,
+ * but we might want to enable 5-level paging or vice versa.
+ *
+ * The problem is that we cannot do it directly. Setting or clearing
+ * CR4.LA57 in long mode would trigger #GP. So we need to switch off
+ * long mode and paging first.
+ *
+ * We also need a trampoline in lower memory to switch over from
+ * 4- to 5-level paging for cases when the bootloader puts the kernel
+ * above 4G, but didn't enable 5-level paging for us.
+ *
+ * The same trampoline can be used to switch from 5- to 4-level paging
+ * mode, like when starting 4-level paging kernel via kexec() when
+ * original kernel worked in 5-level paging mode.
+ *
+ * For the trampoline, we need the top page table to reside in lower
+ * memory as we don't have a way to load 64-bit values into CR3 in
+ * 32-bit mode.
+ *
+ * We go though the trampoline even if we don't have to: if we're
+ * already in a desired paging mode. This way the trampoline code gets
+ * tested on every boot.
+ */
+
+ /* Make sure we have GDT with 32-bit code segment */
+ leaq gdt64(%rip), %rax
+ addq %rax, 2(%rax)
+ lgdt (%rax)
+
+ /* Reload CS so IRET returns to a CS actually in the GDT */
+ pushq $__KERNEL_CS
+ leaq .Lon_kernel_cs(%rip), %rax
+ pushq %rax
+ lretq
+
+.Lon_kernel_cs:
+
+ pushq %rsi
+ call load_stage1_idt
+ popq %rsi
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+ /*
+ * Now that the stage1 interrupt handlers are set up, #VC exceptions from
+ * CPUID instructions can be properly handled for SEV-ES guests.
+ *
+ * For SEV-SNP, the CPUID table also needs to be set up in advance of any
+ * CPUID instructions being issued, so go ahead and do that now via
+ * sev_enable(), which will also handle the rest of the SEV-related
+ * detection/setup to ensure that has been done in advance of any dependent
+ * code.
+ */
+ pushq %rsi
+ movq %rsi, %rdi /* real mode address */
+ call sev_enable
+ popq %rsi
+#endif
+
+ /*
+ * paging_prepare() sets up the trampoline and checks if we need to
+ * enable 5-level paging.
+ *
+ * paging_prepare() returns a two-quadword structure which lands
+ * into RDX:RAX:
+ * - Address of the trampoline is returned in RAX.
+ * - Non zero RDX means trampoline needs to enable 5-level
+ * paging.
+ *
+ * RSI holds real mode data and needs to be preserved across
+ * this function call.
+ */
+ pushq %rsi
+ movq %rsi, %rdi /* real mode address */
+ call paging_prepare
+ popq %rsi
+
+ /* Save the trampoline address in RCX */
+ movq %rax, %rcx
+
+ /*
+ * Load the address of trampoline_return() into RDI.
+ * It will be used by the trampoline to return to the main code.
+ */
+ leaq trampoline_return(%rip), %rdi
+
+ /* Switch to compatibility mode (CS.L = 0 CS.D = 1) via far return */
+ pushq $__KERNEL32_CS
+ leaq TRAMPOLINE_32BIT_CODE_OFFSET(%rax), %rax
+ pushq %rax
+ lretq
+trampoline_return:
+ /* Restore the stack, the 32-bit trampoline uses its own stack */
+ leaq rva(boot_stack_end)(%rbx), %rsp
+
+ /*
+ * cleanup_trampoline() would restore trampoline memory.
+ *
+ * RDI is address of the page table to use instead of page table
+ * in trampoline memory (if required).
+ *
+ * RSI holds real mode data and needs to be preserved across
+ * this function call.
+ */
+ pushq %rsi
+ leaq rva(top_pgtable)(%rbx), %rdi
+ call cleanup_trampoline
+ popq %rsi
/* Zero EFLAGS */
pushq $0
@@ -252,22 +498,48 @@ ENTRY(startup_64)
*/
pushq %rsi
leaq (_bss-8)(%rip), %rsi
- leaq (_bss-8)(%rbx), %rdi
- movq $_bss /* - $startup_32 */, %rcx
- shrq $3, %rcx
+ leaq rva(_bss-8)(%rbx), %rdi
+ movl $(_bss - startup_32), %ecx
+ shrl $3, %ecx
std
rep movsq
cld
popq %rsi
+ /*
+ * The GDT may get overwritten either during the copy we just did or
+ * during extract_kernel below. To avoid any issues, repoint the GDTR
+ * to the new copy of the GDT.
+ */
+ leaq rva(gdt64)(%rbx), %rax
+ leaq rva(gdt)(%rbx), %rdx
+ movq %rdx, 2(%rax)
+ lgdt (%rax)
+
/*
* Jump to the relocated address.
*/
- leaq relocated(%rbx), %rax
+ leaq rva(.Lrelocated)(%rbx), %rax
+ jmp *%rax
+SYM_CODE_END(startup_64)
+
+#ifdef CONFIG_EFI_STUB
+#ifdef CONFIG_EFI_HANDOVER_PROTOCOL
+ .org 0x390
+#endif
+SYM_FUNC_START(efi64_stub_entry)
+ and $~0xf, %rsp /* realign the stack */
+ movq %rdx, %rbx /* save boot_params pointer */
+ call efi_main
+ movq %rbx,%rsi
+ leaq rva(startup_64)(%rax), %rax
jmp *%rax
+SYM_FUNC_END(efi64_stub_entry)
+SYM_FUNC_ALIAS(efi_stub_entry, efi64_stub_entry)
+#endif
.text
-relocated:
+SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated)
/*
* Clear BSS (stack is currently empty)
@@ -279,63 +551,197 @@ relocated:
shrq $3, %rcx
rep stosq
+ pushq %rsi
+ call load_stage2_idt
+
+ /* Pass boot_params to initialize_identity_maps() */
+ movq (%rsp), %rdi
+ call initialize_identity_maps
+ popq %rsi
+
/*
- * Adjust our own GOT
- */
- leaq _got(%rip), %rdx
- leaq _egot(%rip), %rcx
-1:
- cmpq %rcx, %rdx
- jae 2f
- addq %rbx, (%rdx)
- addq $8, %rdx
- jmp 1b
-2:
-
-/*
- * Do the decompression, and jump to the new kernel..
+ * Do the extraction, and jump to the new kernel..
*/
pushq %rsi /* Save the real mode argument */
movq %rsi, %rdi /* real mode address */
leaq boot_heap(%rip), %rsi /* malloc area for uncompression */
leaq input_data(%rip), %rdx /* input_data */
- movl $z_input_len, %ecx /* input_len */
+ movl input_len(%rip), %ecx /* input_len */
movq %rbp, %r8 /* output target address */
- call decompress_kernel
+ movl output_len(%rip), %r9d /* decompressed length, end of relocs */
+ call extract_kernel /* returns kernel entry point in %rax */
popq %rsi
/*
* Jump to the decompressed kernel.
*/
- jmp *%rbp
+ jmp *%rax
+SYM_FUNC_END(.Lrelocated)
+
+ .code32
+/*
+ * This is the 32-bit trampoline that will be copied over to low memory.
+ *
+ * RDI contains the return address (might be above 4G).
+ * ECX contains the base address of the trampoline memory.
+ * Non zero RDX means trampoline needs to enable 5-level paging.
+ */
+SYM_CODE_START(trampoline_32bit_src)
+ /* Set up data and stack segments */
+ movl $__KERNEL_DS, %eax
+ movl %eax, %ds
+ movl %eax, %ss
+
+ /* Set up new stack */
+ leal TRAMPOLINE_32BIT_STACK_END(%ecx), %esp
+
+ /* Disable paging */
+ movl %cr0, %eax
+ btrl $X86_CR0_PG_BIT, %eax
+ movl %eax, %cr0
+
+ /* Check what paging mode we want to be in after the trampoline */
+ testl %edx, %edx
+ jz 1f
+
+ /* We want 5-level paging: don't touch CR3 if it already points to 5-level page tables */
+ movl %cr4, %eax
+ testl $X86_CR4_LA57, %eax
+ jnz 3f
+ jmp 2f
+1:
+ /* We want 4-level paging: don't touch CR3 if it already points to 4-level page tables */
+ movl %cr4, %eax
+ testl $X86_CR4_LA57, %eax
+ jz 3f
+2:
+ /* Point CR3 to the trampoline's new top level page table */
+ leal TRAMPOLINE_32BIT_PGTABLE_OFFSET(%ecx), %eax
+ movl %eax, %cr3
+3:
+ /* Set EFER.LME=1 as a precaution in case hypervsior pulls the rug */
+ pushl %ecx
+ pushl %edx
+ movl $MSR_EFER, %ecx
+ rdmsr
+ btsl $_EFER_LME, %eax
+ /* Avoid writing EFER if no change was made (for TDX guest) */
+ jc 1f
+ wrmsr
+1: popl %edx
+ popl %ecx
+
+#ifdef CONFIG_X86_MCE
+ /*
+ * Preserve CR4.MCE if the kernel will enable #MC support.
+ * Clearing MCE may fault in some environments (that also force #MC
+ * support). Any machine check that occurs before #MC support is fully
+ * configured will crash the system regardless of the CR4.MCE value set
+ * here.
+ */
+ movl %cr4, %eax
+ andl $X86_CR4_MCE, %eax
+#else
+ movl $0, %eax
+#endif
+
+ /* Enable PAE and LA57 (if required) paging modes */
+ orl $X86_CR4_PAE, %eax
+ testl %edx, %edx
+ jz 1f
+ orl $X86_CR4_LA57, %eax
+1:
+ movl %eax, %cr4
+
+ /* Calculate address of paging_enabled() once we are executing in the trampoline */
+ leal .Lpaging_enabled - trampoline_32bit_src + TRAMPOLINE_32BIT_CODE_OFFSET(%ecx), %eax
+
+ /* Prepare the stack for far return to Long Mode */
+ pushl $__KERNEL_CS
+ pushl %eax
+
+ /* Enable paging again. */
+ movl %cr0, %eax
+ btsl $X86_CR0_PG_BIT, %eax
+ movl %eax, %cr0
+
+ lret
+SYM_CODE_END(trampoline_32bit_src)
+
+ .code64
+SYM_FUNC_START_LOCAL_NOALIGN(.Lpaging_enabled)
+ /* Return from the trampoline */
+ jmp *%rdi
+SYM_FUNC_END(.Lpaging_enabled)
+
+ /*
+ * The trampoline code has a size limit.
+ * Make sure we fail to compile if the trampoline code grows
+ * beyond TRAMPOLINE_32BIT_CODE_SIZE bytes.
+ */
+ .org trampoline_32bit_src + TRAMPOLINE_32BIT_CODE_SIZE
+
+ .code32
+SYM_FUNC_START_LOCAL_NOALIGN(.Lno_longmode)
+ /* This isn't an x86-64 CPU, so hang intentionally, we cannot continue */
+1:
+ hlt
+ jmp 1b
+SYM_FUNC_END(.Lno_longmode)
+
+ .globl verify_cpu
+#include "../../kernel/verify_cpu.S"
.data
-gdt:
- .word gdt_end - gdt
- .long gdt
+SYM_DATA_START_LOCAL(gdt64)
+ .word gdt_end - gdt - 1
+ .quad gdt - gdt64
+SYM_DATA_END(gdt64)
+ .balign 8
+SYM_DATA_START_LOCAL(gdt)
+ .word gdt_end - gdt - 1
+ .long 0
.word 0
- .quad 0x0000000000000000 /* NULL descriptor */
+ .quad 0x00cf9a000000ffff /* __KERNEL32_CS */
.quad 0x00af9a000000ffff /* __KERNEL_CS */
.quad 0x00cf92000000ffff /* __KERNEL_DS */
.quad 0x0080890000000000 /* TS descriptor */
.quad 0x0000000000000000 /* TS continued */
-gdt_end:
+SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end)
+
+SYM_DATA_START(boot_idt_desc)
+ .word boot_idt_end - boot_idt - 1
+ .quad 0
+SYM_DATA_END(boot_idt_desc)
+ .balign 8
+SYM_DATA_START(boot_idt)
+ .rept BOOT_IDT_ENTRIES
+ .quad 0
+ .quad 0
+ .endr
+SYM_DATA_END_LABEL(boot_idt, SYM_L_GLOBAL, boot_idt_end)
/*
* Stack and heap for uncompression
*/
.bss
.balign 4
-boot_heap:
- .fill BOOT_HEAP_SIZE, 1, 0
-boot_stack:
+SYM_DATA_LOCAL(boot_heap, .fill BOOT_HEAP_SIZE, 1, 0)
+
+SYM_DATA_START_LOCAL(boot_stack)
.fill BOOT_STACK_SIZE, 1, 0
-boot_stack_end:
+ .balign 16
+SYM_DATA_END_LABEL(boot_stack, SYM_L_LOCAL, boot_stack_end)
/*
* Space for page tables (not in .bss so not zeroed)
*/
- .section ".pgtable","a",@nobits
+ .section ".pgtable","aw",@nobits
.balign 4096
-pgtable:
- .fill 6*4096, 1, 0
+SYM_DATA_LOCAL(pgtable, .fill BOOT_PGT_SIZE, 1, 0)
+
+/*
+ * The page table is going to be used instead of page table in the trampoline
+ * memory.
+ */
+SYM_DATA_LOCAL(top_pgtable, .fill PAGE_SIZE, 1, 0)
diff --git a/arch/x86/boot/compressed/ident_map_64.c b/arch/x86/boot/compressed/ident_map_64.c
new file mode 100644
index 000000000000..bcc956c17872
--- /dev/null
+++ b/arch/x86/boot/compressed/ident_map_64.c
@@ -0,0 +1,379 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This code is used on x86_64 to create page table identity mappings on
+ * demand by building up a new set of page tables (or appending to the
+ * existing ones), and then switching over to them when ready.
+ *
+ * Copyright (C) 2015-2016 Yinghai Lu
+ * Copyright (C) 2016 Kees Cook
+ */
+
+/* No PAGE_TABLE_ISOLATION support needed either: */
+#undef CONFIG_PAGE_TABLE_ISOLATION
+
+#include "error.h"
+#include "misc.h"
+
+/* These actually do the work of building the kernel identity maps. */
+#include <linux/pgtable.h>
+#include <asm/cmpxchg.h>
+#include <asm/trap_pf.h>
+#include <asm/trapnr.h>
+#include <asm/init.h>
+/* Use the static base for this part of the boot process */
+#undef __PAGE_OFFSET
+#define __PAGE_OFFSET __PAGE_OFFSET_BASE
+#include "../../mm/ident_map.c"
+
+#define _SETUP
+#include <asm/setup.h> /* For COMMAND_LINE_SIZE */
+#undef _SETUP
+
+extern unsigned long get_cmd_line_ptr(void);
+
+/* Used by PAGE_KERN* macros: */
+pteval_t __default_kernel_pte_mask __read_mostly = ~0;
+
+/* Used to track our page table allocation area. */
+struct alloc_pgt_data {
+ unsigned char *pgt_buf;
+ unsigned long pgt_buf_size;
+ unsigned long pgt_buf_offset;
+};
+
+/*
+ * Allocates space for a page table entry, using struct alloc_pgt_data
+ * above. Besides the local callers, this is used as the allocation
+ * callback in mapping_info below.
+ */
+static void *alloc_pgt_page(void *context)
+{
+ struct alloc_pgt_data *pages = (struct alloc_pgt_data *)context;
+ unsigned char *entry;
+
+ /* Validate there is space available for a new page. */
+ if (pages->pgt_buf_offset >= pages->pgt_buf_size) {
+ debug_putstr("out of pgt_buf in " __FILE__ "!?\n");
+ debug_putaddr(pages->pgt_buf_offset);
+ debug_putaddr(pages->pgt_buf_size);
+ return NULL;
+ }
+
+ entry = pages->pgt_buf + pages->pgt_buf_offset;
+ pages->pgt_buf_offset += PAGE_SIZE;
+
+ return entry;
+}
+
+/* Used to track our allocated page tables. */
+static struct alloc_pgt_data pgt_data;
+
+/* The top level page table entry pointer. */
+static unsigned long top_level_pgt;
+
+phys_addr_t physical_mask = (1ULL << __PHYSICAL_MASK_SHIFT) - 1;
+
+/*
+ * Mapping information structure passed to kernel_ident_mapping_init().
+ * Due to relocation, pointers must be assigned at run time not build time.
+ */
+static struct x86_mapping_info mapping_info;
+
+/*
+ * Adds the specified range to the identity mappings.
+ */
+void kernel_add_identity_map(unsigned long start, unsigned long end)
+{
+ int ret;
+
+ /* Align boundary to 2M. */
+ start = round_down(start, PMD_SIZE);
+ end = round_up(end, PMD_SIZE);
+ if (start >= end)
+ return;
+
+ /* Build the mapping. */
+ ret = kernel_ident_mapping_init(&mapping_info, (pgd_t *)top_level_pgt, start, end);
+ if (ret)
+ error("Error: kernel_ident_mapping_init() failed\n");
+}
+
+/* Locates and clears a region for a new top level page table. */
+void initialize_identity_maps(void *rmode)
+{
+ unsigned long cmdline;
+ struct setup_data *sd;
+
+ /* Exclude the encryption mask from __PHYSICAL_MASK */
+ physical_mask &= ~sme_me_mask;
+
+ /* Init mapping_info with run-time function/buffer pointers. */
+ mapping_info.alloc_pgt_page = alloc_pgt_page;
+ mapping_info.context = &pgt_data;
+ mapping_info.page_flag = __PAGE_KERNEL_LARGE_EXEC | sme_me_mask;
+ mapping_info.kernpg_flag = _KERNPG_TABLE;
+
+ /*
+ * It should be impossible for this not to already be true,
+ * but since calling this a second time would rewind the other
+ * counters, let's just make sure this is reset too.
+ */
+ pgt_data.pgt_buf_offset = 0;
+
+ /*
+ * If we came here via startup_32(), cr3 will be _pgtable already
+ * and we must append to the existing area instead of entirely
+ * overwriting it.
+ *
+ * With 5-level paging, we use '_pgtable' to allocate the p4d page table,
+ * the top-level page table is allocated separately.
+ *
+ * p4d_offset(top_level_pgt, 0) would cover both the 4- and 5-level
+ * cases. On 4-level paging it's equal to 'top_level_pgt'.
+ */
+ top_level_pgt = read_cr3_pa();
+ if (p4d_offset((pgd_t *)top_level_pgt, 0) == (p4d_t *)_pgtable) {
+ pgt_data.pgt_buf = _pgtable + BOOT_INIT_PGT_SIZE;
+ pgt_data.pgt_buf_size = BOOT_PGT_SIZE - BOOT_INIT_PGT_SIZE;
+ memset(pgt_data.pgt_buf, 0, pgt_data.pgt_buf_size);
+ } else {
+ pgt_data.pgt_buf = _pgtable;
+ pgt_data.pgt_buf_size = BOOT_PGT_SIZE;
+ memset(pgt_data.pgt_buf, 0, pgt_data.pgt_buf_size);
+ top_level_pgt = (unsigned long)alloc_pgt_page(&pgt_data);
+ }
+
+ /*
+ * New page-table is set up - map the kernel image, boot_params and the
+ * command line. The uncompressed kernel requires boot_params and the
+ * command line to be mapped in the identity mapping. Map them
+ * explicitly here in case the compressed kernel does not touch them,
+ * or does not touch all the pages covering them.
+ */
+ kernel_add_identity_map((unsigned long)_head, (unsigned long)_end);
+ boot_params = rmode;
+ kernel_add_identity_map((unsigned long)boot_params, (unsigned long)(boot_params + 1));
+ cmdline = get_cmd_line_ptr();
+ kernel_add_identity_map(cmdline, cmdline + COMMAND_LINE_SIZE);
+
+ /*
+ * Also map the setup_data entries passed via boot_params in case they
+ * need to be accessed by uncompressed kernel via the identity mapping.
+ */
+ sd = (struct setup_data *)boot_params->hdr.setup_data;
+ while (sd) {
+ unsigned long sd_addr = (unsigned long)sd;
+
+ kernel_add_identity_map(sd_addr, sd_addr + sizeof(*sd) + sd->len);
+ sd = (struct setup_data *)sd->next;
+ }
+
+ sev_prep_identity_maps(top_level_pgt);
+
+ /* Load the new page-table. */
+ write_cr3(top_level_pgt);
+
+ /*
+ * Now that the required page table mappings are established and a
+ * GHCB can be used, check for SNP guest/HV feature compatibility.
+ */
+ snp_check_features();
+}
+
+static pte_t *split_large_pmd(struct x86_mapping_info *info,
+ pmd_t *pmdp, unsigned long __address)
+{
+ unsigned long page_flags;
+ unsigned long address;
+ pte_t *pte;
+ pmd_t pmd;
+ int i;
+
+ pte = (pte_t *)info->alloc_pgt_page(info->context);
+ if (!pte)
+ return NULL;
+
+ address = __address & PMD_MASK;
+ /* No large page - clear PSE flag */
+ page_flags = info->page_flag & ~_PAGE_PSE;
+
+ /* Populate the PTEs */
+ for (i = 0; i < PTRS_PER_PMD; i++) {
+ set_pte(&pte[i], __pte(address | page_flags));
+ address += PAGE_SIZE;
+ }
+
+ /*
+ * Ideally we need to clear the large PMD first and do a TLB
+ * flush before we write the new PMD. But the 2M range of the
+ * PMD might contain the code we execute and/or the stack
+ * we are on, so we can't do that. But that should be safe here
+ * because we are going from large to small mappings and we are
+ * also the only user of the page-table, so there is no chance
+ * of a TLB multihit.
+ */
+ pmd = __pmd((unsigned long)pte | info->kernpg_flag);
+ set_pmd(pmdp, pmd);
+ /* Flush TLB to establish the new PMD */
+ write_cr3(top_level_pgt);
+
+ return pte + pte_index(__address);
+}
+
+static void clflush_page(unsigned long address)
+{
+ unsigned int flush_size;
+ char *cl, *start, *end;
+
+ /*
+ * Hardcode cl-size to 64 - CPUID can't be used here because that might
+ * cause another #VC exception and the GHCB is not ready to use yet.
+ */
+ flush_size = 64;
+ start = (char *)(address & PAGE_MASK);
+ end = start + PAGE_SIZE;
+
+ /*
+ * First make sure there are no pending writes on the cache-lines to
+ * flush.
+ */
+ asm volatile("mfence" : : : "memory");
+
+ for (cl = start; cl != end; cl += flush_size)
+ clflush(cl);
+}
+
+static int set_clr_page_flags(struct x86_mapping_info *info,
+ unsigned long address,
+ pteval_t set, pteval_t clr)
+{
+ pgd_t *pgdp = (pgd_t *)top_level_pgt;
+ p4d_t *p4dp;
+ pud_t *pudp;
+ pmd_t *pmdp;
+ pte_t *ptep, pte;
+
+ /*
+ * First make sure there is a PMD mapping for 'address'.
+ * It should already exist, but keep things generic.
+ *
+ * To map the page just read from it and fault it in if there is no
+ * mapping yet. kernel_add_identity_map() can't be called here because
+ * that would unconditionally map the address on PMD level, destroying
+ * any PTE-level mappings that might already exist. Use assembly here
+ * so the access won't be optimized away.
+ */
+ asm volatile("mov %[address], %%r9"
+ :: [address] "g" (*(unsigned long *)address)
+ : "r9", "memory");
+
+ /*
+ * The page is mapped at least with PMD size - so skip checks and walk
+ * directly to the PMD.
+ */
+ p4dp = p4d_offset(pgdp, address);
+ pudp = pud_offset(p4dp, address);
+ pmdp = pmd_offset(pudp, address);
+
+ if (pmd_large(*pmdp))
+ ptep = split_large_pmd(info, pmdp, address);
+ else
+ ptep = pte_offset_kernel(pmdp, address);
+
+ if (!ptep)
+ return -ENOMEM;
+
+ /*
+ * Changing encryption attributes of a page requires to flush it from
+ * the caches.
+ */
+ if ((set | clr) & _PAGE_ENC) {
+ clflush_page(address);
+
+ /*
+ * If the encryption attribute is being cleared, change the page state
+ * to shared in the RMP table.
+ */
+ if (clr)
+ snp_set_page_shared(__pa(address & PAGE_MASK));
+ }
+
+ /* Update PTE */
+ pte = *ptep;
+ pte = pte_set_flags(pte, set);
+ pte = pte_clear_flags(pte, clr);
+ set_pte(ptep, pte);
+
+ /*
+ * If the encryption attribute is being set, then change the page state to
+ * private in the RMP entry. The page state change must be done after the PTE
+ * is updated.
+ */
+ if (set & _PAGE_ENC)
+ snp_set_page_private(__pa(address & PAGE_MASK));
+
+ /* Flush TLB after changing encryption attribute */
+ write_cr3(top_level_pgt);
+
+ return 0;
+}
+
+int set_page_decrypted(unsigned long address)
+{
+ return set_clr_page_flags(&mapping_info, address, 0, _PAGE_ENC);
+}
+
+int set_page_encrypted(unsigned long address)
+{
+ return set_clr_page_flags(&mapping_info, address, _PAGE_ENC, 0);
+}
+
+int set_page_non_present(unsigned long address)
+{
+ return set_clr_page_flags(&mapping_info, address, 0, _PAGE_PRESENT);
+}
+
+static void do_pf_error(const char *msg, unsigned long error_code,
+ unsigned long address, unsigned long ip)
+{
+ error_putstr(msg);
+
+ error_putstr("\nError Code: ");
+ error_puthex(error_code);
+ error_putstr("\nCR2: 0x");
+ error_puthex(address);
+ error_putstr("\nRIP relative to _head: 0x");
+ error_puthex(ip - (unsigned long)_head);
+ error_putstr("\n");
+
+ error("Stopping.\n");
+}
+
+void do_boot_page_fault(struct pt_regs *regs, unsigned long error_code)
+{
+ unsigned long address = native_read_cr2();
+ unsigned long end;
+ bool ghcb_fault;
+
+ ghcb_fault = sev_es_check_ghcb_fault(address);
+
+ address &= PMD_MASK;
+ end = address + PMD_SIZE;
+
+ /*
+ * Check for unexpected error codes. Unexpected are:
+ * - Faults on present pages
+ * - User faults
+ * - Reserved bits set
+ */
+ if (error_code & (X86_PF_PROT | X86_PF_USER | X86_PF_RSVD))
+ do_pf_error("Unexpected page-fault:", error_code, address, regs->ip);
+ else if (ghcb_fault)
+ do_pf_error("Page-fault on GHCB page:", error_code, address, regs->ip);
+
+ /*
+ * Error code is sane - now identity map the 2M region around
+ * the faulting address.
+ */
+ kernel_add_identity_map(address, end);
+}
diff --git a/arch/x86/boot/compressed/idt_64.c b/arch/x86/boot/compressed/idt_64.c
new file mode 100644
index 000000000000..6debb816e83d
--- /dev/null
+++ b/arch/x86/boot/compressed/idt_64.c
@@ -0,0 +1,84 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <asm/trap_pf.h>
+#include <asm/segment.h>
+#include <asm/trapnr.h>
+#include "misc.h"
+
+static void set_idt_entry(int vector, void (*handler)(void))
+{
+ unsigned long address = (unsigned long)handler;
+ gate_desc entry;
+
+ memset(&entry, 0, sizeof(entry));
+
+ entry.offset_low = (u16)(address & 0xffff);
+ entry.segment = __KERNEL_CS;
+ entry.bits.type = GATE_TRAP;
+ entry.bits.p = 1;
+ entry.offset_middle = (u16)((address >> 16) & 0xffff);
+ entry.offset_high = (u32)(address >> 32);
+
+ memcpy(&boot_idt[vector], &entry, sizeof(entry));
+}
+
+/* Have this here so we don't need to include <asm/desc.h> */
+static void load_boot_idt(const struct desc_ptr *dtr)
+{
+ asm volatile("lidt %0"::"m" (*dtr));
+}
+
+/* Setup IDT before kernel jumping to .Lrelocated */
+void load_stage1_idt(void)
+{
+ boot_idt_desc.address = (unsigned long)boot_idt;
+
+
+ if (IS_ENABLED(CONFIG_AMD_MEM_ENCRYPT))
+ set_idt_entry(X86_TRAP_VC, boot_stage1_vc);
+
+ load_boot_idt(&boot_idt_desc);
+}
+
+/*
+ * Setup IDT after kernel jumping to .Lrelocated.
+ *
+ * initialize_identity_maps() needs a #PF handler to be setup
+ * in order to be able to fault-in identity mapping ranges; see
+ * do_boot_page_fault().
+ *
+ * This #PF handler setup needs to happen in load_stage2_idt() where the
+ * IDT is loaded and there the #VC IDT entry gets setup too.
+ *
+ * In order to be able to handle #VCs, one needs a GHCB which
+ * gets setup with an already set up pagetable, which is done in
+ * initialize_identity_maps(). And there's the catch 22: the boot #VC
+ * handler do_boot_stage2_vc() needs to call early_setup_ghcb() itself
+ * (and, especially set_page_decrypted()) because the SEV-ES setup code
+ * cannot initialize a GHCB as there's no #PF handler yet...
+ */
+void load_stage2_idt(void)
+{
+ boot_idt_desc.address = (unsigned long)boot_idt;
+
+ set_idt_entry(X86_TRAP_PF, boot_page_fault);
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+ set_idt_entry(X86_TRAP_VC, boot_stage2_vc);
+#endif
+
+ load_boot_idt(&boot_idt_desc);
+}
+
+void cleanup_exception_handling(void)
+{
+ /*
+ * Flush GHCB from cache and map it encrypted again when running as
+ * SEV-ES guest.
+ */
+ sev_es_shutdown_ghcb();
+
+ /* Set a null-idt, disabling #PF and #VC handling */
+ boot_idt_desc.size = 0;
+ boot_idt_desc.address = 0;
+ load_boot_idt(&boot_idt_desc);
+}
diff --git a/arch/x86/boot/compressed/idt_handlers_64.S b/arch/x86/boot/compressed/idt_handlers_64.S
new file mode 100644
index 000000000000..22890e199f5b
--- /dev/null
+++ b/arch/x86/boot/compressed/idt_handlers_64.S
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Early IDT handler entry points
+ *
+ * Copyright (C) 2019 SUSE
+ *
+ * Author: Joerg Roedel <jroedel@suse.de>
+ */
+
+#include <asm/segment.h>
+
+/* For ORIG_RAX */
+#include "../../entry/calling.h"
+
+.macro EXCEPTION_HANDLER name function error_code=0
+SYM_FUNC_START(\name)
+
+ /* Build pt_regs */
+ .if \error_code == 0
+ pushq $0
+ .endif
+
+ pushq %rdi
+ pushq %rsi
+ pushq %rdx
+ pushq %rcx
+ pushq %rax
+ pushq %r8
+ pushq %r9
+ pushq %r10
+ pushq %r11
+ pushq %rbx
+ pushq %rbp
+ pushq %r12
+ pushq %r13
+ pushq %r14
+ pushq %r15
+
+ /* Call handler with pt_regs */
+ movq %rsp, %rdi
+ /* Error code is second parameter */
+ movq ORIG_RAX(%rsp), %rsi
+ call \function
+
+ /* Restore regs */
+ popq %r15
+ popq %r14
+ popq %r13
+ popq %r12
+ popq %rbp
+ popq %rbx
+ popq %r11
+ popq %r10
+ popq %r9
+ popq %r8
+ popq %rax
+ popq %rcx
+ popq %rdx
+ popq %rsi
+ popq %rdi
+
+ /* Remove error code and return */
+ addq $8, %rsp
+
+ iretq
+SYM_FUNC_END(\name)
+ .endm
+
+ .text
+ .code64
+
+EXCEPTION_HANDLER boot_page_fault do_boot_page_fault error_code=1
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+EXCEPTION_HANDLER boot_stage1_vc do_vc_no_ghcb error_code=1
+EXCEPTION_HANDLER boot_stage2_vc do_boot_stage2_vc error_code=1
+#endif
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
new file mode 100644
index 000000000000..454757fbdfe5
--- /dev/null
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -0,0 +1,873 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * kaslr.c
+ *
+ * This contains the routines needed to generate a reasonable level of
+ * entropy to choose a randomized kernel base address offset in support
+ * of Kernel Address Space Layout Randomization (KASLR). Additionally
+ * handles walking the physical memory maps (and tracking memory regions
+ * to avoid) in order to select a physical memory location that can
+ * contain the entire properly aligned running kernel image.
+ *
+ */
+
+/*
+ * isspace() in linux/ctype.h is expected by next_args() to filter
+ * out "space/lf/tab". While boot/ctype.h conflicts with linux/ctype.h,
+ * since isdigit() is implemented in both of them. Hence disable it
+ * here.
+ */
+#define BOOT_CTYPE_H
+
+#include "misc.h"
+#include "error.h"
+#include "../string.h"
+#include "efi.h"
+
+#include <generated/compile.h>
+#include <linux/module.h>
+#include <linux/uts.h>
+#include <linux/utsname.h>
+#include <linux/ctype.h>
+#include <generated/utsversion.h>
+#include <generated/utsrelease.h>
+
+#define _SETUP
+#include <asm/setup.h> /* For COMMAND_LINE_SIZE */
+#undef _SETUP
+
+extern unsigned long get_cmd_line_ptr(void);
+
+/* Simplified build-specific string for starting entropy. */
+static const char build_str[] = UTS_RELEASE " (" LINUX_COMPILE_BY "@"
+ LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION;
+
+static unsigned long rotate_xor(unsigned long hash, const void *area,
+ size_t size)
+{
+ size_t i;
+ unsigned long *ptr = (unsigned long *)area;
+
+ for (i = 0; i < size / sizeof(hash); i++) {
+ /* Rotate by odd number of bits and XOR. */
+ hash = (hash << ((sizeof(hash) * 8) - 7)) | (hash >> 7);
+ hash ^= ptr[i];
+ }
+
+ return hash;
+}
+
+/* Attempt to create a simple but unpredictable starting entropy. */
+static unsigned long get_boot_seed(void)
+{
+ unsigned long hash = 0;
+
+ hash = rotate_xor(hash, build_str, sizeof(build_str));
+ hash = rotate_xor(hash, boot_params, sizeof(*boot_params));
+
+ return hash;
+}
+
+#define KASLR_COMPRESSED_BOOT
+#include "../../lib/kaslr.c"
+
+
+/* Only supporting at most 4 unusable memmap regions with kaslr */
+#define MAX_MEMMAP_REGIONS 4
+
+static bool memmap_too_large;
+
+
+/*
+ * Store memory limit: MAXMEM on 64-bit and KERNEL_IMAGE_SIZE on 32-bit.
+ * It may be reduced by "mem=nn[KMG]" or "memmap=nn[KMG]" command line options.
+ */
+static u64 mem_limit;
+
+/* Number of immovable memory regions */
+static int num_immovable_mem;
+
+enum mem_avoid_index {
+ MEM_AVOID_ZO_RANGE = 0,
+ MEM_AVOID_INITRD,
+ MEM_AVOID_CMDLINE,
+ MEM_AVOID_BOOTPARAMS,
+ MEM_AVOID_MEMMAP_BEGIN,
+ MEM_AVOID_MEMMAP_END = MEM_AVOID_MEMMAP_BEGIN + MAX_MEMMAP_REGIONS - 1,
+ MEM_AVOID_MAX,
+};
+
+static struct mem_vector mem_avoid[MEM_AVOID_MAX];
+
+static bool mem_overlaps(struct mem_vector *one, struct mem_vector *two)
+{
+ /* Item one is entirely before item two. */
+ if (one->start + one->size <= two->start)
+ return false;
+ /* Item one is entirely after item two. */
+ if (one->start >= two->start + two->size)
+ return false;
+ return true;
+}
+
+char *skip_spaces(const char *str)
+{
+ while (isspace(*str))
+ ++str;
+ return (char *)str;
+}
+#include "../../../../lib/ctype.c"
+#include "../../../../lib/cmdline.c"
+
+enum parse_mode {
+ PARSE_MEMMAP,
+ PARSE_EFI,
+};
+
+static int
+parse_memmap(char *p, u64 *start, u64 *size, enum parse_mode mode)
+{
+ char *oldp;
+
+ if (!p)
+ return -EINVAL;
+
+ /* We don't care about this option here */
+ if (!strncmp(p, "exactmap", 8))
+ return -EINVAL;
+
+ oldp = p;
+ *size = memparse(p, &p);
+ if (p == oldp)
+ return -EINVAL;
+
+ switch (*p) {
+ case '#':
+ case '$':
+ case '!':
+ *start = memparse(p + 1, &p);
+ return 0;
+ case '@':
+ if (mode == PARSE_MEMMAP) {
+ /*
+ * memmap=nn@ss specifies usable region, should
+ * be skipped
+ */
+ *size = 0;
+ } else {
+ u64 flags;
+
+ /*
+ * efi_fake_mem=nn@ss:attr the attr specifies
+ * flags that might imply a soft-reservation.
+ */
+ *start = memparse(p + 1, &p);
+ if (p && *p == ':') {
+ p++;
+ if (kstrtoull(p, 0, &flags) < 0)
+ *size = 0;
+ else if (flags & EFI_MEMORY_SP)
+ return 0;
+ }
+ *size = 0;
+ }
+ fallthrough;
+ default:
+ /*
+ * If w/o offset, only size specified, memmap=nn[KMG] has the
+ * same behaviour as mem=nn[KMG]. It limits the max address
+ * system can use. Region above the limit should be avoided.
+ */
+ *start = 0;
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
+static void mem_avoid_memmap(enum parse_mode mode, char *str)
+{
+ static int i;
+
+ if (i >= MAX_MEMMAP_REGIONS)
+ return;
+
+ while (str && (i < MAX_MEMMAP_REGIONS)) {
+ int rc;
+ u64 start, size;
+ char *k = strchr(str, ',');
+
+ if (k)
+ *k++ = 0;
+
+ rc = parse_memmap(str, &start, &size, mode);
+ if (rc < 0)
+ break;
+ str = k;
+
+ if (start == 0) {
+ /* Store the specified memory limit if size > 0 */
+ if (size > 0 && size < mem_limit)
+ mem_limit = size;
+
+ continue;
+ }
+
+ mem_avoid[MEM_AVOID_MEMMAP_BEGIN + i].start = start;
+ mem_avoid[MEM_AVOID_MEMMAP_BEGIN + i].size = size;
+ i++;
+ }
+
+ /* More than 4 memmaps, fail kaslr */
+ if ((i >= MAX_MEMMAP_REGIONS) && str)
+ memmap_too_large = true;
+}
+
+/* Store the number of 1GB huge pages which users specified: */
+static unsigned long max_gb_huge_pages;
+
+static void parse_gb_huge_pages(char *param, char *val)
+{
+ static bool gbpage_sz;
+ char *p;
+
+ if (!strcmp(param, "hugepagesz")) {
+ p = val;
+ if (memparse(p, &p) != PUD_SIZE) {
+ gbpage_sz = false;
+ return;
+ }
+
+ if (gbpage_sz)
+ warn("Repeatedly set hugeTLB page size of 1G!\n");
+ gbpage_sz = true;
+ return;
+ }
+
+ if (!strcmp(param, "hugepages") && gbpage_sz) {
+ p = val;
+ max_gb_huge_pages = simple_strtoull(p, &p, 0);
+ return;
+ }
+}
+
+static void handle_mem_options(void)
+{
+ char *args = (char *)get_cmd_line_ptr();
+ size_t len;
+ char *tmp_cmdline;
+ char *param, *val;
+ u64 mem_size;
+
+ if (!args)
+ return;
+
+ len = strnlen(args, COMMAND_LINE_SIZE-1);
+ tmp_cmdline = malloc(len + 1);
+ if (!tmp_cmdline)
+ error("Failed to allocate space for tmp_cmdline");
+
+ memcpy(tmp_cmdline, args, len);
+ tmp_cmdline[len] = 0;
+ args = tmp_cmdline;
+
+ /* Chew leading spaces */
+ args = skip_spaces(args);
+
+ while (*args) {
+ args = next_arg(args, &param, &val);
+ /* Stop at -- */
+ if (!val && strcmp(param, "--") == 0)
+ break;
+
+ if (!strcmp(param, "memmap")) {
+ mem_avoid_memmap(PARSE_MEMMAP, val);
+ } else if (IS_ENABLED(CONFIG_X86_64) && strstr(param, "hugepages")) {
+ parse_gb_huge_pages(param, val);
+ } else if (!strcmp(param, "mem")) {
+ char *p = val;
+
+ if (!strcmp(p, "nopentium"))
+ continue;
+ mem_size = memparse(p, &p);
+ if (mem_size == 0)
+ break;
+
+ if (mem_size < mem_limit)
+ mem_limit = mem_size;
+ } else if (!strcmp(param, "efi_fake_mem")) {
+ mem_avoid_memmap(PARSE_EFI, val);
+ }
+ }
+
+ free(tmp_cmdline);
+ return;
+}
+
+/*
+ * In theory, KASLR can put the kernel anywhere in the range of [16M, MAXMEM)
+ * on 64-bit, and [16M, KERNEL_IMAGE_SIZE) on 32-bit.
+ *
+ * The mem_avoid array is used to store the ranges that need to be avoided
+ * when KASLR searches for an appropriate random address. We must avoid any
+ * regions that are unsafe to overlap with during decompression, and other
+ * things like the initrd, cmdline and boot_params. This comment seeks to
+ * explain mem_avoid as clearly as possible since incorrect mem_avoid
+ * memory ranges lead to really hard to debug boot failures.
+ *
+ * The initrd, cmdline, and boot_params are trivial to identify for
+ * avoiding. They are MEM_AVOID_INITRD, MEM_AVOID_CMDLINE, and
+ * MEM_AVOID_BOOTPARAMS respectively below.
+ *
+ * What is not obvious how to avoid is the range of memory that is used
+ * during decompression (MEM_AVOID_ZO_RANGE below). This range must cover
+ * the compressed kernel (ZO) and its run space, which is used to extract
+ * the uncompressed kernel (VO) and relocs.
+ *
+ * ZO's full run size sits against the end of the decompression buffer, so
+ * we can calculate where text, data, bss, etc of ZO are positioned more
+ * easily.
+ *
+ * For additional background, the decompression calculations can be found
+ * in header.S, and the memory diagram is based on the one found in misc.c.
+ *
+ * The following conditions are already enforced by the image layouts and
+ * associated code:
+ * - input + input_size >= output + output_size
+ * - kernel_total_size <= init_size
+ * - kernel_total_size <= output_size (see Note below)
+ * - output + init_size >= output + output_size
+ *
+ * (Note that kernel_total_size and output_size have no fundamental
+ * relationship, but output_size is passed to choose_random_location
+ * as a maximum of the two. The diagram is showing a case where
+ * kernel_total_size is larger than output_size, but this case is
+ * handled by bumping output_size.)
+ *
+ * The above conditions can be illustrated by a diagram:
+ *
+ * 0 output input input+input_size output+init_size
+ * | | | | |
+ * | | | | |
+ * |-----|--------|--------|--------------|-----------|--|-------------|
+ * | | |
+ * | | |
+ * output+init_size-ZO_INIT_SIZE output+output_size output+kernel_total_size
+ *
+ * [output, output+init_size) is the entire memory range used for
+ * extracting the compressed image.
+ *
+ * [output, output+kernel_total_size) is the range needed for the
+ * uncompressed kernel (VO) and its run size (bss, brk, etc).
+ *
+ * [output, output+output_size) is VO plus relocs (i.e. the entire
+ * uncompressed payload contained by ZO). This is the area of the buffer
+ * written to during decompression.
+ *
+ * [output+init_size-ZO_INIT_SIZE, output+init_size) is the worst-case
+ * range of the copied ZO and decompression code. (i.e. the range
+ * covered backwards of size ZO_INIT_SIZE, starting from output+init_size.)
+ *
+ * [input, input+input_size) is the original copied compressed image (ZO)
+ * (i.e. it does not include its run size). This range must be avoided
+ * because it contains the data used for decompression.
+ *
+ * [input+input_size, output+init_size) is [_text, _end) for ZO. This
+ * range includes ZO's heap and stack, and must be avoided since it
+ * performs the decompression.
+ *
+ * Since the above two ranges need to be avoided and they are adjacent,
+ * they can be merged, resulting in: [input, output+init_size) which
+ * becomes the MEM_AVOID_ZO_RANGE below.
+ */
+static void mem_avoid_init(unsigned long input, unsigned long input_size,
+ unsigned long output)
+{
+ unsigned long init_size = boot_params->hdr.init_size;
+ u64 initrd_start, initrd_size;
+ unsigned long cmd_line, cmd_line_size;
+
+ /*
+ * Avoid the region that is unsafe to overlap during
+ * decompression.
+ */
+ mem_avoid[MEM_AVOID_ZO_RANGE].start = input;
+ mem_avoid[MEM_AVOID_ZO_RANGE].size = (output + init_size) - input;
+
+ /* Avoid initrd. */
+ initrd_start = (u64)boot_params->ext_ramdisk_image << 32;
+ initrd_start |= boot_params->hdr.ramdisk_image;
+ initrd_size = (u64)boot_params->ext_ramdisk_size << 32;
+ initrd_size |= boot_params->hdr.ramdisk_size;
+ mem_avoid[MEM_AVOID_INITRD].start = initrd_start;
+ mem_avoid[MEM_AVOID_INITRD].size = initrd_size;
+ /* No need to set mapping for initrd, it will be handled in VO. */
+
+ /* Avoid kernel command line. */
+ cmd_line = get_cmd_line_ptr();
+ /* Calculate size of cmd_line. */
+ if (cmd_line) {
+ cmd_line_size = strnlen((char *)cmd_line, COMMAND_LINE_SIZE-1) + 1;
+ mem_avoid[MEM_AVOID_CMDLINE].start = cmd_line;
+ mem_avoid[MEM_AVOID_CMDLINE].size = cmd_line_size;
+ }
+
+ /* Avoid boot parameters. */
+ mem_avoid[MEM_AVOID_BOOTPARAMS].start = (unsigned long)boot_params;
+ mem_avoid[MEM_AVOID_BOOTPARAMS].size = sizeof(*boot_params);
+
+ /* We don't need to set a mapping for setup_data. */
+
+ /* Mark the memmap regions we need to avoid */
+ handle_mem_options();
+
+ /* Enumerate the immovable memory regions */
+ num_immovable_mem = count_immovable_mem_regions();
+}
+
+/*
+ * Does this memory vector overlap a known avoided area? If so, record the
+ * overlap region with the lowest address.
+ */
+static bool mem_avoid_overlap(struct mem_vector *img,
+ struct mem_vector *overlap)
+{
+ int i;
+ struct setup_data *ptr;
+ u64 earliest = img->start + img->size;
+ bool is_overlapping = false;
+
+ for (i = 0; i < MEM_AVOID_MAX; i++) {
+ if (mem_overlaps(img, &mem_avoid[i]) &&
+ mem_avoid[i].start < earliest) {
+ *overlap = mem_avoid[i];
+ earliest = overlap->start;
+ is_overlapping = true;
+ }
+ }
+
+ /* Avoid all entries in the setup_data linked list. */
+ ptr = (struct setup_data *)(unsigned long)boot_params->hdr.setup_data;
+ while (ptr) {
+ struct mem_vector avoid;
+
+ avoid.start = (unsigned long)ptr;
+ avoid.size = sizeof(*ptr) + ptr->len;
+
+ if (mem_overlaps(img, &avoid) && (avoid.start < earliest)) {
+ *overlap = avoid;
+ earliest = overlap->start;
+ is_overlapping = true;
+ }
+
+ if (ptr->type == SETUP_INDIRECT &&
+ ((struct setup_indirect *)ptr->data)->type != SETUP_INDIRECT) {
+ avoid.start = ((struct setup_indirect *)ptr->data)->addr;
+ avoid.size = ((struct setup_indirect *)ptr->data)->len;
+
+ if (mem_overlaps(img, &avoid) && (avoid.start < earliest)) {
+ *overlap = avoid;
+ earliest = overlap->start;
+ is_overlapping = true;
+ }
+ }
+
+ ptr = (struct setup_data *)(unsigned long)ptr->next;
+ }
+
+ return is_overlapping;
+}
+
+struct slot_area {
+ u64 addr;
+ unsigned long num;
+};
+
+#define MAX_SLOT_AREA 100
+
+static struct slot_area slot_areas[MAX_SLOT_AREA];
+static unsigned int slot_area_index;
+static unsigned long slot_max;
+
+static void store_slot_info(struct mem_vector *region, unsigned long image_size)
+{
+ struct slot_area slot_area;
+
+ if (slot_area_index == MAX_SLOT_AREA)
+ return;
+
+ slot_area.addr = region->start;
+ slot_area.num = 1 + (region->size - image_size) / CONFIG_PHYSICAL_ALIGN;
+
+ slot_areas[slot_area_index++] = slot_area;
+ slot_max += slot_area.num;
+}
+
+/*
+ * Skip as many 1GB huge pages as possible in the passed region
+ * according to the number which users specified:
+ */
+static void
+process_gb_huge_pages(struct mem_vector *region, unsigned long image_size)
+{
+ u64 pud_start, pud_end;
+ unsigned long gb_huge_pages;
+ struct mem_vector tmp;
+
+ if (!IS_ENABLED(CONFIG_X86_64) || !max_gb_huge_pages) {
+ store_slot_info(region, image_size);
+ return;
+ }
+
+ /* Are there any 1GB pages in the region? */
+ pud_start = ALIGN(region->start, PUD_SIZE);
+ pud_end = ALIGN_DOWN(region->start + region->size, PUD_SIZE);
+
+ /* No good 1GB huge pages found: */
+ if (pud_start >= pud_end) {
+ store_slot_info(region, image_size);
+ return;
+ }
+
+ /* Check if the head part of the region is usable. */
+ if (pud_start >= region->start + image_size) {
+ tmp.start = region->start;
+ tmp.size = pud_start - region->start;
+ store_slot_info(&tmp, image_size);
+ }
+
+ /* Skip the good 1GB pages. */
+ gb_huge_pages = (pud_end - pud_start) >> PUD_SHIFT;
+ if (gb_huge_pages > max_gb_huge_pages) {
+ pud_end = pud_start + (max_gb_huge_pages << PUD_SHIFT);
+ max_gb_huge_pages = 0;
+ } else {
+ max_gb_huge_pages -= gb_huge_pages;
+ }
+
+ /* Check if the tail part of the region is usable. */
+ if (region->start + region->size >= pud_end + image_size) {
+ tmp.start = pud_end;
+ tmp.size = region->start + region->size - pud_end;
+ store_slot_info(&tmp, image_size);
+ }
+}
+
+static u64 slots_fetch_random(void)
+{
+ unsigned long slot;
+ unsigned int i;
+
+ /* Handle case of no slots stored. */
+ if (slot_max == 0)
+ return 0;
+
+ slot = kaslr_get_random_long("Physical") % slot_max;
+
+ for (i = 0; i < slot_area_index; i++) {
+ if (slot >= slot_areas[i].num) {
+ slot -= slot_areas[i].num;
+ continue;
+ }
+ return slot_areas[i].addr + ((u64)slot * CONFIG_PHYSICAL_ALIGN);
+ }
+
+ if (i == slot_area_index)
+ debug_putstr("slots_fetch_random() failed!?\n");
+ return 0;
+}
+
+static void __process_mem_region(struct mem_vector *entry,
+ unsigned long minimum,
+ unsigned long image_size)
+{
+ struct mem_vector region, overlap;
+ u64 region_end;
+
+ /* Enforce minimum and memory limit. */
+ region.start = max_t(u64, entry->start, minimum);
+ region_end = min(entry->start + entry->size, mem_limit);
+
+ /* Give up if slot area array is full. */
+ while (slot_area_index < MAX_SLOT_AREA) {
+ /* Potentially raise address to meet alignment needs. */
+ region.start = ALIGN(region.start, CONFIG_PHYSICAL_ALIGN);
+
+ /* Did we raise the address above the passed in memory entry? */
+ if (region.start > region_end)
+ return;
+
+ /* Reduce size by any delta from the original address. */
+ region.size = region_end - region.start;
+
+ /* Return if region can't contain decompressed kernel */
+ if (region.size < image_size)
+ return;
+
+ /* If nothing overlaps, store the region and return. */
+ if (!mem_avoid_overlap(&region, &overlap)) {
+ process_gb_huge_pages(&region, image_size);
+ return;
+ }
+
+ /* Store beginning of region if holds at least image_size. */
+ if (overlap.start >= region.start + image_size) {
+ region.size = overlap.start - region.start;
+ process_gb_huge_pages(&region, image_size);
+ }
+
+ /* Clip off the overlapping region and start over. */
+ region.start = overlap.start + overlap.size;
+ }
+}
+
+static bool process_mem_region(struct mem_vector *region,
+ unsigned long minimum,
+ unsigned long image_size)
+{
+ int i;
+ /*
+ * If no immovable memory found, or MEMORY_HOTREMOVE disabled,
+ * use @region directly.
+ */
+ if (!num_immovable_mem) {
+ __process_mem_region(region, minimum, image_size);
+
+ if (slot_area_index == MAX_SLOT_AREA) {
+ debug_putstr("Aborted e820/efi memmap scan (slot_areas full)!\n");
+ return true;
+ }
+ return false;
+ }
+
+#if defined(CONFIG_MEMORY_HOTREMOVE) && defined(CONFIG_ACPI)
+ /*
+ * If immovable memory found, filter the intersection between
+ * immovable memory and @region.
+ */
+ for (i = 0; i < num_immovable_mem; i++) {
+ u64 start, end, entry_end, region_end;
+ struct mem_vector entry;
+
+ if (!mem_overlaps(region, &immovable_mem[i]))
+ continue;
+
+ start = immovable_mem[i].start;
+ end = start + immovable_mem[i].size;
+ region_end = region->start + region->size;
+
+ entry.start = clamp(region->start, start, end);
+ entry_end = clamp(region_end, start, end);
+ entry.size = entry_end - entry.start;
+
+ __process_mem_region(&entry, minimum, image_size);
+
+ if (slot_area_index == MAX_SLOT_AREA) {
+ debug_putstr("Aborted e820/efi memmap scan when walking immovable regions(slot_areas full)!\n");
+ return true;
+ }
+ }
+#endif
+ return false;
+}
+
+#ifdef CONFIG_EFI
+/*
+ * Returns true if we processed the EFI memmap, which we prefer over the E820
+ * table if it is available.
+ */
+static bool
+process_efi_entries(unsigned long minimum, unsigned long image_size)
+{
+ struct efi_info *e = &boot_params->efi_info;
+ bool efi_mirror_found = false;
+ struct mem_vector region;
+ efi_memory_desc_t *md;
+ unsigned long pmap;
+ char *signature;
+ u32 nr_desc;
+ int i;
+
+ signature = (char *)&e->efi_loader_signature;
+ if (strncmp(signature, EFI32_LOADER_SIGNATURE, 4) &&
+ strncmp(signature, EFI64_LOADER_SIGNATURE, 4))
+ return false;
+
+#ifdef CONFIG_X86_32
+ /* Can't handle data above 4GB at this time */
+ if (e->efi_memmap_hi) {
+ warn("EFI memmap is above 4GB, can't be handled now on x86_32. EFI should be disabled.\n");
+ return false;
+ }
+ pmap = e->efi_memmap;
+#else
+ pmap = (e->efi_memmap | ((__u64)e->efi_memmap_hi << 32));
+#endif
+
+ nr_desc = e->efi_memmap_size / e->efi_memdesc_size;
+ for (i = 0; i < nr_desc; i++) {
+ md = efi_early_memdesc_ptr(pmap, e->efi_memdesc_size, i);
+ if (md->attribute & EFI_MEMORY_MORE_RELIABLE) {
+ efi_mirror_found = true;
+ break;
+ }
+ }
+
+ for (i = 0; i < nr_desc; i++) {
+ md = efi_early_memdesc_ptr(pmap, e->efi_memdesc_size, i);
+
+ /*
+ * Here we are more conservative in picking free memory than
+ * the EFI spec allows:
+ *
+ * According to the spec, EFI_BOOT_SERVICES_{CODE|DATA} are also
+ * free memory and thus available to place the kernel image into,
+ * but in practice there's firmware where using that memory leads
+ * to crashes.
+ *
+ * Only EFI_CONVENTIONAL_MEMORY is guaranteed to be free.
+ */
+ if (md->type != EFI_CONVENTIONAL_MEMORY)
+ continue;
+
+ if (efi_soft_reserve_enabled() &&
+ (md->attribute & EFI_MEMORY_SP))
+ continue;
+
+ if (efi_mirror_found &&
+ !(md->attribute & EFI_MEMORY_MORE_RELIABLE))
+ continue;
+
+ region.start = md->phys_addr;
+ region.size = md->num_pages << EFI_PAGE_SHIFT;
+ if (process_mem_region(&region, minimum, image_size))
+ break;
+ }
+ return true;
+}
+#else
+static inline bool
+process_efi_entries(unsigned long minimum, unsigned long image_size)
+{
+ return false;
+}
+#endif
+
+static void process_e820_entries(unsigned long minimum,
+ unsigned long image_size)
+{
+ int i;
+ struct mem_vector region;
+ struct boot_e820_entry *entry;
+
+ /* Verify potential e820 positions, appending to slots list. */
+ for (i = 0; i < boot_params->e820_entries; i++) {
+ entry = &boot_params->e820_table[i];
+ /* Skip non-RAM entries. */
+ if (entry->type != E820_TYPE_RAM)
+ continue;
+ region.start = entry->addr;
+ region.size = entry->size;
+ if (process_mem_region(&region, minimum, image_size))
+ break;
+ }
+}
+
+static unsigned long find_random_phys_addr(unsigned long minimum,
+ unsigned long image_size)
+{
+ u64 phys_addr;
+
+ /* Bail out early if it's impossible to succeed. */
+ if (minimum + image_size > mem_limit)
+ return 0;
+
+ /* Check if we had too many memmaps. */
+ if (memmap_too_large) {
+ debug_putstr("Aborted memory entries scan (more than 4 memmap= args)!\n");
+ return 0;
+ }
+
+ if (!process_efi_entries(minimum, image_size))
+ process_e820_entries(minimum, image_size);
+
+ phys_addr = slots_fetch_random();
+
+ /* Perform a final check to make sure the address is in range. */
+ if (phys_addr < minimum || phys_addr + image_size > mem_limit) {
+ warn("Invalid physical address chosen!\n");
+ return 0;
+ }
+
+ return (unsigned long)phys_addr;
+}
+
+static unsigned long find_random_virt_addr(unsigned long minimum,
+ unsigned long image_size)
+{
+ unsigned long slots, random_addr;
+
+ /*
+ * There are how many CONFIG_PHYSICAL_ALIGN-sized slots
+ * that can hold image_size within the range of minimum to
+ * KERNEL_IMAGE_SIZE?
+ */
+ slots = 1 + (KERNEL_IMAGE_SIZE - minimum - image_size) / CONFIG_PHYSICAL_ALIGN;
+
+ random_addr = kaslr_get_random_long("Virtual") % slots;
+
+ return random_addr * CONFIG_PHYSICAL_ALIGN + minimum;
+}
+
+/*
+ * Since this function examines addresses much more numerically,
+ * it takes the input and output pointers as 'unsigned long'.
+ */
+void choose_random_location(unsigned long input,
+ unsigned long input_size,
+ unsigned long *output,
+ unsigned long output_size,
+ unsigned long *virt_addr)
+{
+ unsigned long random_addr, min_addr;
+
+ if (cmdline_find_option_bool("nokaslr")) {
+ warn("KASLR disabled: 'nokaslr' on cmdline.");
+ return;
+ }
+
+ boot_params->hdr.loadflags |= KASLR_FLAG;
+
+ if (IS_ENABLED(CONFIG_X86_32))
+ mem_limit = KERNEL_IMAGE_SIZE;
+ else
+ mem_limit = MAXMEM;
+
+ /* Record the various known unsafe memory ranges. */
+ mem_avoid_init(input, input_size, *output);
+
+ /*
+ * Low end of the randomization range should be the
+ * smaller of 512M or the initial kernel image
+ * location:
+ */
+ min_addr = min(*output, 512UL << 20);
+ /* Make sure minimum is aligned. */
+ min_addr = ALIGN(min_addr, CONFIG_PHYSICAL_ALIGN);
+
+ /* Walk available memory entries to find a random address. */
+ random_addr = find_random_phys_addr(min_addr, output_size);
+ if (!random_addr) {
+ warn("Physical KASLR disabled: no suitable memory region!");
+ } else {
+ /* Update the new physical address location. */
+ if (*output != random_addr)
+ *output = random_addr;
+ }
+
+
+ /* Pick random virtual address starting from LOAD_PHYSICAL_ADDR. */
+ if (IS_ENABLED(CONFIG_X86_64))
+ random_addr = find_random_virt_addr(LOAD_PHYSICAL_ADDR, output_size);
+ *virt_addr = random_addr;
+}
diff --git a/arch/x86/boot/compressed/kernel_info.S b/arch/x86/boot/compressed/kernel_info.S
new file mode 100644
index 000000000000..f818ee8fba38
--- /dev/null
+++ b/arch/x86/boot/compressed/kernel_info.S
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include <asm/bootparam.h>
+
+ .section ".rodata.kernel_info", "a"
+
+ .global kernel_info
+
+kernel_info:
+ /* Header, Linux top (structure). */
+ .ascii "LToP"
+ /* Size. */
+ .long kernel_info_var_len_data - kernel_info
+ /* Size total. */
+ .long kernel_info_end - kernel_info
+
+ /* Maximal allowed type for setup_data and setup_indirect structs. */
+ .long SETUP_TYPE_MAX
+
+kernel_info_var_len_data:
+ /* Empty for time being... */
+kernel_info_end:
diff --git a/arch/x86/boot/compressed/mem_encrypt.S b/arch/x86/boot/compressed/mem_encrypt.S
new file mode 100644
index 000000000000..32f7cc8a8625
--- /dev/null
+++ b/arch/x86/boot/compressed/mem_encrypt.S
@@ -0,0 +1,324 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AMD Memory Encryption Support
+ *
+ * Copyright (C) 2017 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ */
+
+#include <linux/linkage.h>
+
+#include <asm/processor-flags.h>
+#include <asm/msr.h>
+#include <asm/asm-offsets.h>
+#include <asm/segment.h>
+#include <asm/trapnr.h>
+
+ .text
+ .code32
+SYM_FUNC_START(get_sev_encryption_bit)
+ push %ebx
+
+ movl $0x80000000, %eax /* CPUID to check the highest leaf */
+ cpuid
+ cmpl $0x8000001f, %eax /* See if 0x8000001f is available */
+ jb .Lno_sev
+
+ /*
+ * Check for the SEV feature:
+ * CPUID Fn8000_001F[EAX] - Bit 1
+ * CPUID Fn8000_001F[EBX] - Bits 5:0
+ * Pagetable bit position used to indicate encryption
+ */
+ movl $0x8000001f, %eax
+ cpuid
+ bt $1, %eax /* Check if SEV is available */
+ jnc .Lno_sev
+
+ movl $MSR_AMD64_SEV, %ecx /* Read the SEV MSR */
+ rdmsr
+ bt $MSR_AMD64_SEV_ENABLED_BIT, %eax /* Check if SEV is active */
+ jnc .Lno_sev
+
+ movl %ebx, %eax
+ andl $0x3f, %eax /* Return the encryption bit location */
+ jmp .Lsev_exit
+
+.Lno_sev:
+ xor %eax, %eax
+
+.Lsev_exit:
+ pop %ebx
+ RET
+SYM_FUNC_END(get_sev_encryption_bit)
+
+/**
+ * sev_es_req_cpuid - Request a CPUID value from the Hypervisor using
+ * the GHCB MSR protocol
+ *
+ * @%eax: Register to request (0=EAX, 1=EBX, 2=ECX, 3=EDX)
+ * @%edx: CPUID Function
+ *
+ * Returns 0 in %eax on success, non-zero on failure
+ * %edx returns CPUID value on success
+ */
+SYM_CODE_START_LOCAL(sev_es_req_cpuid)
+ shll $30, %eax
+ orl $0x00000004, %eax
+ movl $MSR_AMD64_SEV_ES_GHCB, %ecx
+ wrmsr
+ rep; vmmcall # VMGEXIT
+ rdmsr
+
+ /* Check response */
+ movl %eax, %ecx
+ andl $0x3ffff000, %ecx # Bits [12-29] MBZ
+ jnz 2f
+
+ /* Check return code */
+ andl $0xfff, %eax
+ cmpl $5, %eax
+ jne 2f
+
+ /* All good - return success */
+ xorl %eax, %eax
+1:
+ RET
+2:
+ movl $-1, %eax
+ jmp 1b
+SYM_CODE_END(sev_es_req_cpuid)
+
+SYM_CODE_START_LOCAL(startup32_vc_handler)
+ pushl %eax
+ pushl %ebx
+ pushl %ecx
+ pushl %edx
+
+ /* Keep CPUID function in %ebx */
+ movl %eax, %ebx
+
+ /* Check if error-code == SVM_EXIT_CPUID */
+ cmpl $0x72, 16(%esp)
+ jne .Lfail
+
+ movl $0, %eax # Request CPUID[fn].EAX
+ movl %ebx, %edx # CPUID fn
+ call sev_es_req_cpuid # Call helper
+ testl %eax, %eax # Check return code
+ jnz .Lfail
+ movl %edx, 12(%esp) # Store result
+
+ movl $1, %eax # Request CPUID[fn].EBX
+ movl %ebx, %edx # CPUID fn
+ call sev_es_req_cpuid # Call helper
+ testl %eax, %eax # Check return code
+ jnz .Lfail
+ movl %edx, 8(%esp) # Store result
+
+ movl $2, %eax # Request CPUID[fn].ECX
+ movl %ebx, %edx # CPUID fn
+ call sev_es_req_cpuid # Call helper
+ testl %eax, %eax # Check return code
+ jnz .Lfail
+ movl %edx, 4(%esp) # Store result
+
+ movl $3, %eax # Request CPUID[fn].EDX
+ movl %ebx, %edx # CPUID fn
+ call sev_es_req_cpuid # Call helper
+ testl %eax, %eax # Check return code
+ jnz .Lfail
+ movl %edx, 0(%esp) # Store result
+
+ /*
+ * Sanity check CPUID results from the Hypervisor. See comment in
+ * do_vc_no_ghcb() for more details on why this is necessary.
+ */
+
+ /* Fail if SEV leaf not available in CPUID[0x80000000].EAX */
+ cmpl $0x80000000, %ebx
+ jne .Lcheck_sev
+ cmpl $0x8000001f, 12(%esp)
+ jb .Lfail
+ jmp .Ldone
+
+.Lcheck_sev:
+ /* Fail if SEV bit not set in CPUID[0x8000001f].EAX[1] */
+ cmpl $0x8000001f, %ebx
+ jne .Ldone
+ btl $1, 12(%esp)
+ jnc .Lfail
+
+.Ldone:
+ popl %edx
+ popl %ecx
+ popl %ebx
+ popl %eax
+
+ /* Remove error code */
+ addl $4, %esp
+
+ /* Jump over CPUID instruction */
+ addl $2, (%esp)
+
+ iret
+.Lfail:
+ /* Send terminate request to Hypervisor */
+ movl $0x100, %eax
+ xorl %edx, %edx
+ movl $MSR_AMD64_SEV_ES_GHCB, %ecx
+ wrmsr
+ rep; vmmcall
+
+ /* If request fails, go to hlt loop */
+ hlt
+ jmp .Lfail
+SYM_CODE_END(startup32_vc_handler)
+
+/*
+ * Write an IDT entry into boot32_idt
+ *
+ * Parameters:
+ *
+ * %eax: Handler address
+ * %edx: Vector number
+ * %ecx: IDT address
+ */
+SYM_FUNC_START_LOCAL(startup32_set_idt_entry)
+ /* IDT entry address to %ecx */
+ leal (%ecx, %edx, 8), %ecx
+
+ /* Build IDT entry, lower 4 bytes */
+ movl %eax, %edx
+ andl $0x0000ffff, %edx # Target code segment offset [15:0]
+ orl $(__KERNEL32_CS << 16), %edx # Target code segment selector
+
+ /* Store lower 4 bytes to IDT */
+ movl %edx, (%ecx)
+
+ /* Build IDT entry, upper 4 bytes */
+ movl %eax, %edx
+ andl $0xffff0000, %edx # Target code segment offset [31:16]
+ orl $0x00008e00, %edx # Present, Type 32-bit Interrupt Gate
+
+ /* Store upper 4 bytes to IDT */
+ movl %edx, 4(%ecx)
+
+ RET
+SYM_FUNC_END(startup32_set_idt_entry)
+
+SYM_FUNC_START(startup32_load_idt)
+ push %ebp
+ push %ebx
+
+ call 1f
+1: pop %ebp
+
+ leal (boot32_idt - 1b)(%ebp), %ebx
+
+ /* #VC handler */
+ leal (startup32_vc_handler - 1b)(%ebp), %eax
+ movl $X86_TRAP_VC, %edx
+ movl %ebx, %ecx
+ call startup32_set_idt_entry
+
+ /* Load IDT */
+ leal (boot32_idt_desc - 1b)(%ebp), %ecx
+ movl %ebx, 2(%ecx)
+ lidt (%ecx)
+
+ pop %ebx
+ pop %ebp
+ RET
+SYM_FUNC_END(startup32_load_idt)
+
+/*
+ * Check for the correct C-bit position when the startup_32 boot-path is used.
+ *
+ * The check makes use of the fact that all memory is encrypted when paging is
+ * disabled. The function creates 64 bits of random data using the RDRAND
+ * instruction. RDRAND is mandatory for SEV guests, so always available. If the
+ * hypervisor violates that the kernel will crash right here.
+ *
+ * The 64 bits of random data are stored to a memory location and at the same
+ * time kept in the %eax and %ebx registers. Since encryption is always active
+ * when paging is off the random data will be stored encrypted in main memory.
+ *
+ * Then paging is enabled. When the C-bit position is correct all memory is
+ * still mapped encrypted and comparing the register values with memory will
+ * succeed. An incorrect C-bit position will map all memory unencrypted, so that
+ * the compare will use the encrypted random data and fail.
+ */
+SYM_FUNC_START(startup32_check_sev_cbit)
+ pushl %ebx
+ pushl %ebp
+
+ call 0f
+0: popl %ebp
+
+ /* Check for non-zero sev_status */
+ movl (sev_status - 0b)(%ebp), %eax
+ testl %eax, %eax
+ jz 4f
+
+ /*
+ * Get two 32-bit random values - Don't bail out if RDRAND fails
+ * because it is better to prevent forward progress if no random value
+ * can be gathered.
+ */
+1: rdrand %eax
+ jnc 1b
+2: rdrand %ebx
+ jnc 2b
+
+ /* Store to memory and keep it in the registers */
+ leal (sev_check_data - 0b)(%ebp), %ebp
+ movl %eax, 0(%ebp)
+ movl %ebx, 4(%ebp)
+
+ /* Enable paging to see if encryption is active */
+ movl %cr0, %edx /* Backup %cr0 in %edx */
+ movl $(X86_CR0_PG | X86_CR0_PE), %ecx /* Enable Paging and Protected mode */
+ movl %ecx, %cr0
+
+ cmpl %eax, 0(%ebp)
+ jne 3f
+ cmpl %ebx, 4(%ebp)
+ jne 3f
+
+ movl %edx, %cr0 /* Restore previous %cr0 */
+
+ jmp 4f
+
+3: /* Check failed - hlt the machine */
+ hlt
+ jmp 3b
+
+4:
+ popl %ebp
+ popl %ebx
+ RET
+SYM_FUNC_END(startup32_check_sev_cbit)
+
+ .code64
+
+#include "../../kernel/sev_verify_cbit.S"
+
+ .data
+
+ .balign 8
+SYM_DATA(sme_me_mask, .quad 0)
+SYM_DATA(sev_status, .quad 0)
+SYM_DATA(sev_check_data, .quad 0)
+
+SYM_DATA_START_LOCAL(boot32_idt)
+ .rept 32
+ .quad 0
+ .endr
+SYM_DATA_END(boot32_idt)
+
+SYM_DATA_START_LOCAL(boot32_idt_desc)
+ .word . - boot32_idt - 1
+ .long 0
+SYM_DATA_END(boot32_idt_desc)
diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
index 3a19d04cebeb..014ff222bf4b 100644
--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
@@ -1,8 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* misc.c
*
- * This is a collection of several routines from gzip-1.0.3
- * adapted for Linux.
+ * This is a collection of several routines used to extract the kernel
+ * which includes KASLR relocation, decompression, ELF parsing, and
+ * relocation processing. Additionally included are the screen and serial
+ * output functions and related debugging support functions.
*
* malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
* puts by Nick Holloway 1993, better puts by Martin Mares 1995
@@ -10,122 +13,52 @@
*/
#include "misc.h"
-
-/* WARNING!!
- * This code is compiled with -fPIC and it is relocated dynamically
- * at run time, but no relocation processing is performed.
- * This means that it is not safe to place pointers in static structures.
- */
+#include "error.h"
+#include "pgtable.h"
+#include "../string.h"
+#include "../voffset.h"
+#include <asm/bootparam_utils.h>
/*
- * Getting to provable safe in place decompression is hard.
- * Worst case behaviours need to be analyzed.
- * Background information:
- *
- * The file layout is:
- * magic[2]
- * method[1]
- * flags[1]
- * timestamp[4]
- * extraflags[1]
- * os[1]
- * compressed data blocks[N]
- * crc[4] orig_len[4]
- *
- * resulting in 18 bytes of non compressed data overhead.
- *
- * Files divided into blocks
- * 1 bit (last block flag)
- * 2 bits (block type)
- *
- * 1 block occurs every 32K -1 bytes or when there 50% compression
- * has been achieved. The smallest block type encoding is always used.
- *
- * stored:
- * 32 bits length in bytes.
- *
- * fixed:
- * magic fixed tree.
- * symbols.
- *
- * dynamic:
- * dynamic tree encoding.
- * symbols.
- *
- *
- * The buffer for decompression in place is the length of the
- * uncompressed data, plus a small amount extra to keep the algorithm safe.
- * The compressed data is placed at the end of the buffer. The output
- * pointer is placed at the start of the buffer and the input pointer
- * is placed where the compressed data starts. Problems will occur
- * when the output pointer overruns the input pointer.
- *
- * The output pointer can only overrun the input pointer if the input
- * pointer is moving faster than the output pointer. A condition only
- * triggered by data whose compressed form is larger than the uncompressed
- * form.
- *
- * The worst case at the block level is a growth of the compressed data
- * of 5 bytes per 32767 bytes.
- *
- * The worst case internal to a compressed block is very hard to figure.
- * The worst case can at least be boundined by having one bit that represents
- * 32764 bytes and then all of the rest of the bytes representing the very
- * very last byte.
- *
- * All of which is enough to compute an amount of extra data that is required
- * to be safe. To avoid problems at the block level allocating 5 extra bytes
- * per 32767 bytes of data is sufficient. To avoind problems internal to a
- * block adding an extra 32767 bytes (the worst case uncompressed block size)
- * is sufficient, to ensure that in the worst case the decompressed data for
- * block will stop the byte before the compressed data for a block begins.
- * To avoid problems with the compressed data's meta information an extra 18
- * bytes are needed. Leading to the formula:
- *
- * extra_bytes = (uncompressed_size >> 12) + 32768 + 18 + decompressor_size.
- *
- * Adding 8 bytes per 32K is a bit excessive but much easier to calculate.
- * Adding 32768 instead of 32767 just makes for round numbers.
- * Adding the decompressor_size is necessary as it musht live after all
- * of the data as well. Last I measured the decompressor is about 14K.
- * 10K of actual data and 4K of bss.
- *
+ * WARNING!!
+ * This code is compiled with -fPIC and it is relocated dynamically at
+ * run time, but no relocation processing is performed. This means that
+ * it is not safe to place pointers in static structures.
*/
-/*
- * gzip declarations
- */
+/* Macros used by the included decompressor code below. */
#define STATIC static
+/* Define an externally visible malloc()/free(). */
+#define MALLOC_VISIBLE
+#include <linux/decompress/mm.h>
-#undef memset
-#undef memcpy
+/*
+ * Provide definitions of memzero and memmove as some of the decompressors will
+ * try to define their own functions if these are not defined as macros.
+ */
#define memzero(s, n) memset((s), 0, (n))
-
-
-static void error(char *m);
+#ifndef memmove
+#define memmove memmove
+/* Functions used by the included decompressor code below. */
+void *memmove(void *dest, const void *src, size_t n);
+#endif
/*
* This is set up by the setup-routine at boot-time
*/
-struct boot_params *real_mode; /* Pointer to real-mode data */
-static int quiet;
-static int debug;
-
-void *memset(void *s, int c, size_t n);
-void *memcpy(void *dest, const void *src, size_t n);
+struct boot_params *boot_params;
-#ifdef CONFIG_X86_64
-#define memptr long
-#else
-#define memptr unsigned
-#endif
+struct port_io_ops pio_ops;
-static memptr free_mem_ptr;
-static memptr free_mem_end_ptr;
+memptr free_mem_ptr;
+memptr free_mem_end_ptr;
static char *vidmem;
static int vidport;
-static int lines, cols;
+
+/* These might be accessed before .bss is cleared, so use .data instead. */
+static int lines __section(".data");
+static int cols __section(".data");
#ifdef CONFIG_KERNEL_GZIP
#include "../../../../lib/decompress_inflate.c"
@@ -147,11 +80,23 @@ static int lines, cols;
#include "../../../../lib/decompress_unlzo.c"
#endif
+#ifdef CONFIG_KERNEL_LZ4
+#include "../../../../lib/decompress_unlz4.c"
+#endif
+
+#ifdef CONFIG_KERNEL_ZSTD
+#include "../../../../lib/decompress_unzstd.c"
+#endif
+/*
+ * NOTE: When adding a new decompressor, please update the analysis in
+ * ../header.S.
+ */
+
static void scroll(void)
{
int i;
- memcpy(vidmem, vidmem + cols * 2, (lines - 1) * cols * 2);
+ memmove(vidmem, vidmem + cols * 2, (lines - 1) * cols * 2);
for (i = (lines - 1) * cols * 2; i < lines * cols * 2; i += 2)
vidmem[i] = ' ';
}
@@ -170,15 +115,11 @@ static void serial_putchar(int ch)
outb(ch, early_serial_base + TXR);
}
-void __putstr(int error, const char *s)
+void __putstr(const char *s)
{
int x, y, pos;
char c;
-#ifndef CONFIG_X86_VERBOSE_BOOTUP
- if (!error)
- return;
-#endif
if (early_serial_base) {
const char *str = s;
while (*str) {
@@ -188,12 +129,11 @@ void __putstr(int error, const char *s)
}
}
- if (real_mode->screen_info.orig_video_mode == 0 &&
- lines == 0 && cols == 0)
+ if (lines == 0 || cols == 0)
return;
- x = real_mode->screen_info.orig_x;
- y = real_mode->screen_info.orig_y;
+ x = boot_params->screen_info.orig_x;
+ y = boot_params->screen_info.orig_y;
while ((c = *s++) != '\0') {
if (c == '\n') {
@@ -214,8 +154,8 @@ void __putstr(int error, const char *s)
}
}
- real_mode->screen_info.orig_x = x;
- real_mode->screen_info.orig_y = y;
+ boot_params->screen_info.orig_x = x;
+ boot_params->screen_info.orig_y = y;
pos = (x + cols * y) * 2; /* Update cursor position */
outb(14, vidport);
@@ -224,56 +164,120 @@ void __putstr(int error, const char *s)
outb(0xff & (pos >> 1), vidport+1);
}
-void *memset(void *s, int c, size_t n)
+void __puthex(unsigned long value)
{
- int i;
- char *ss = s;
+ char alpha[2] = "0";
+ int bits;
- for (i = 0; i < n; i++)
- ss[i] = c;
- return s;
-}
-#ifdef CONFIG_X86_32
-void *memcpy(void *dest, const void *src, size_t n)
-{
- int d0, d1, d2;
- asm volatile(
- "rep ; movsl\n\t"
- "movl %4,%%ecx\n\t"
- "rep ; movsb\n\t"
- : "=&c" (d0), "=&D" (d1), "=&S" (d2)
- : "0" (n >> 2), "g" (n & 3), "1" (dest), "2" (src)
- : "memory");
-
- return dest;
-}
-#else
-void *memcpy(void *dest, const void *src, size_t n)
-{
- long d0, d1, d2;
- asm volatile(
- "rep ; movsq\n\t"
- "movq %4,%%rcx\n\t"
- "rep ; movsb\n\t"
- : "=&c" (d0), "=&D" (d1), "=&S" (d2)
- : "0" (n >> 3), "g" (n & 7), "1" (dest), "2" (src)
- : "memory");
-
- return dest;
+ for (bits = sizeof(value) * 8 - 4; bits >= 0; bits -= 4) {
+ unsigned long digit = (value >> bits) & 0xf;
+
+ if (digit < 0xA)
+ alpha[0] = '0' + digit;
+ else
+ alpha[0] = 'a' + (digit - 0xA);
+
+ __putstr(alpha);
+ }
}
-#endif
-static void error(char *x)
+#ifdef CONFIG_X86_NEED_RELOCS
+static void handle_relocations(void *output, unsigned long output_len,
+ unsigned long virt_addr)
{
- __putstr(1, "\n\n");
- __putstr(1, x);
- __putstr(1, "\n\n -- System halted");
+ int *reloc;
+ unsigned long delta, map, ptr;
+ unsigned long min_addr = (unsigned long)output;
+ unsigned long max_addr = min_addr + (VO___bss_start - VO__text);
+
+ /*
+ * Calculate the delta between where vmlinux was linked to load
+ * and where it was actually loaded.
+ */
+ delta = min_addr - LOAD_PHYSICAL_ADDR;
+
+ /*
+ * The kernel contains a table of relocation addresses. Those
+ * addresses have the final load address of the kernel in virtual
+ * memory. We are currently working in the self map. So we need to
+ * create an adjustment for kernel memory addresses to the self map.
+ * This will involve subtracting out the base address of the kernel.
+ */
+ map = delta - __START_KERNEL_map;
+
+ /*
+ * 32-bit always performs relocations. 64-bit relocations are only
+ * needed if KASLR has chosen a different starting address offset
+ * from __START_KERNEL_map.
+ */
+ if (IS_ENABLED(CONFIG_X86_64))
+ delta = virt_addr - LOAD_PHYSICAL_ADDR;
+
+ if (!delta) {
+ debug_putstr("No relocation needed... ");
+ return;
+ }
+ debug_putstr("Performing relocations... ");
+
+ /*
+ * Process relocations: 32 bit relocations first then 64 bit after.
+ * Three sets of binary relocations are added to the end of the kernel
+ * before compression. Each relocation table entry is the kernel
+ * address of the location which needs to be updated stored as a
+ * 32-bit value which is sign extended to 64 bits.
+ *
+ * Format is:
+ *
+ * kernel bits...
+ * 0 - zero terminator for 64 bit relocations
+ * 64 bit relocation repeated
+ * 0 - zero terminator for inverse 32 bit relocations
+ * 32 bit inverse relocation repeated
+ * 0 - zero terminator for 32 bit relocations
+ * 32 bit relocation repeated
+ *
+ * So we work backwards from the end of the decompressed image.
+ */
+ for (reloc = output + output_len - sizeof(*reloc); *reloc; reloc--) {
+ long extended = *reloc;
+ extended += map;
+
+ ptr = (unsigned long)extended;
+ if (ptr < min_addr || ptr > max_addr)
+ error("32-bit relocation outside of kernel!\n");
+
+ *(uint32_t *)ptr += delta;
+ }
+#ifdef CONFIG_X86_64
+ while (*--reloc) {
+ long extended = *reloc;
+ extended += map;
+
+ ptr = (unsigned long)extended;
+ if (ptr < min_addr || ptr > max_addr)
+ error("inverse 32-bit relocation outside of kernel!\n");
+
+ *(int32_t *)ptr -= delta;
+ }
+ for (reloc--; *reloc; reloc--) {
+ long extended = *reloc;
+ extended += map;
+
+ ptr = (unsigned long)extended;
+ if (ptr < min_addr || ptr > max_addr)
+ error("64-bit relocation outside of kernel!\n");
- while (1)
- asm("hlt");
+ *(uint64_t *)ptr += delta;
+ }
+#endif
}
+#else
+static inline void handle_relocations(void *output, unsigned long output_len,
+ unsigned long virt_addr)
+{ }
+#endif
-static void parse_elf(void *output)
+static size_t parse_elf(void *output)
{
#ifdef CONFIG_X86_64
Elf64_Ehdr ehdr;
@@ -289,13 +293,10 @@ static void parse_elf(void *output)
if (ehdr.e_ident[EI_MAG0] != ELFMAG0 ||
ehdr.e_ident[EI_MAG1] != ELFMAG1 ||
ehdr.e_ident[EI_MAG2] != ELFMAG2 ||
- ehdr.e_ident[EI_MAG3] != ELFMAG3) {
+ ehdr.e_ident[EI_MAG3] != ELFMAG3)
error("Kernel is not a valid ELF file");
- return;
- }
- if (!quiet)
- putstr("Parsing ELF... ");
+ debug_putstr("Parsing ELF... ");
phdrs = malloc(sizeof(*phdrs) * ehdr.e_phnum);
if (!phdrs)
@@ -308,34 +309,64 @@ static void parse_elf(void *output)
switch (phdr->p_type) {
case PT_LOAD:
+#ifdef CONFIG_X86_64
+ if ((phdr->p_align % 0x200000) != 0)
+ error("Alignment of LOAD segment isn't multiple of 2MB");
+#endif
#ifdef CONFIG_RELOCATABLE
dest = output;
dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR);
#else
dest = (void *)(phdr->p_paddr);
#endif
- memcpy(dest,
- output + phdr->p_offset,
- phdr->p_filesz);
+ memmove(dest, output + phdr->p_offset, phdr->p_filesz);
break;
default: /* Ignore other PT_* */ break;
}
}
+
+ free(phdrs);
+
+ return ehdr.e_entry - LOAD_PHYSICAL_ADDR;
}
-asmlinkage void decompress_kernel(void *rmode, memptr heap,
+/*
+ * The compressed kernel image (ZO), has been moved so that its position
+ * is against the end of the buffer used to hold the uncompressed kernel
+ * image (VO) and the execution environment (.bss, .brk), which makes sure
+ * there is room to do the in-place decompression. (See header.S for the
+ * calculations.)
+ *
+ * |-----compressed kernel image------|
+ * V V
+ * 0 extract_offset +INIT_SIZE
+ * |-----------|---------------|-------------------------|--------|
+ * | | | |
+ * VO__text startup_32 of ZO VO__end ZO__end
+ * ^ ^
+ * |-------uncompressed kernel image---------|
+ *
+ */
+asmlinkage __visible void *extract_kernel(void *rmode, memptr heap,
unsigned char *input_data,
unsigned long input_len,
- unsigned char *output)
+ unsigned char *output,
+ unsigned long output_len)
{
- real_mode = rmode;
+ const unsigned long kernel_total_size = VO__end - VO__text;
+ unsigned long virt_addr = LOAD_PHYSICAL_ADDR;
+ unsigned long needed_size;
+ size_t entry_offset;
+
+ /* Retain x86 boot parameters pointer passed from startup_32/64. */
+ boot_params = rmode;
- if (cmdline_find_option_bool("quiet"))
- quiet = 1;
- if (cmdline_find_option_bool("debug"))
- debug = 1;
+ /* Clear flags intended for solely in-kernel use. */
+ boot_params->hdr.loadflags &= ~KASLR_FLAG;
- if (real_mode->screen_info.orig_video_mode == 7) {
+ sanitize_boot_params(boot_params);
+
+ if (boot_params->screen_info.orig_video_mode == 7) {
vidmem = (char *) 0xb0000;
vidport = 0x3b4;
} else {
@@ -343,35 +374,103 @@ asmlinkage void decompress_kernel(void *rmode, memptr heap,
vidport = 0x3d4;
}
- lines = real_mode->screen_info.orig_video_lines;
- cols = real_mode->screen_info.orig_video_cols;
+ lines = boot_params->screen_info.orig_video_lines;
+ cols = boot_params->screen_info.orig_video_cols;
+
+ init_default_io_ops();
+
+ /*
+ * Detect TDX guest environment.
+ *
+ * It has to be done before console_init() in order to use
+ * paravirtualized port I/O operations if needed.
+ */
+ early_tdx_detect();
console_init();
- if (debug)
- putstr("early console in decompress_kernel\n");
+
+ /*
+ * Save RSDP address for later use. Have this after console_init()
+ * so that early debugging output from the RSDP parsing code can be
+ * collected.
+ */
+ boot_params->acpi_rsdp_addr = get_rsdp_addr();
+
+ debug_putstr("early console in extract_kernel\n");
free_mem_ptr = heap; /* Heap */
free_mem_end_ptr = heap + BOOT_HEAP_SIZE;
+ /*
+ * The memory hole needed for the kernel is the larger of either
+ * the entire decompressed kernel plus relocation table, or the
+ * entire decompressed kernel plus .bss and .brk sections.
+ *
+ * On X86_64, the memory is mapped with PMD pages. Round the
+ * size up so that the full extent of PMD pages mapped is
+ * included in the check against the valid memory table
+ * entries. This ensures the full mapped area is usable RAM
+ * and doesn't include any reserved areas.
+ */
+ needed_size = max(output_len, kernel_total_size);
+#ifdef CONFIG_X86_64
+ needed_size = ALIGN(needed_size, MIN_KERNEL_ALIGN);
+#endif
+
+ /* Report initial kernel position details. */
+ debug_putaddr(input_data);
+ debug_putaddr(input_len);
+ debug_putaddr(output);
+ debug_putaddr(output_len);
+ debug_putaddr(kernel_total_size);
+ debug_putaddr(needed_size);
+
+#ifdef CONFIG_X86_64
+ /* Report address of 32-bit trampoline */
+ debug_putaddr(trampoline_32bit);
+#endif
+
+ choose_random_location((unsigned long)input_data, input_len,
+ (unsigned long *)&output,
+ needed_size,
+ &virt_addr);
+
+ /* Validate memory location choices. */
if ((unsigned long)output & (MIN_KERNEL_ALIGN - 1))
- error("Destination address inappropriately aligned");
+ error("Destination physical address inappropriately aligned");
+ if (virt_addr & (MIN_KERNEL_ALIGN - 1))
+ error("Destination virtual address inappropriately aligned");
#ifdef CONFIG_X86_64
if (heap > 0x3fffffffffffUL)
error("Destination address too large");
+ if (virt_addr + max(output_len, kernel_total_size) > KERNEL_IMAGE_SIZE)
+ error("Destination virtual address is beyond the kernel mapping area");
#else
if (heap > ((-__PAGE_OFFSET-(128<<20)-1) & 0x7fffffff))
error("Destination address too large");
#endif
#ifndef CONFIG_RELOCATABLE
- if ((unsigned long)output != LOAD_PHYSICAL_ADDR)
- error("Wrong destination address");
+ if (virt_addr != LOAD_PHYSICAL_ADDR)
+ error("Destination virtual address changed when not relocatable");
#endif
- if (!quiet)
- putstr("\nDecompressing Linux... ");
- decompress(input_data, input_len, NULL, NULL, output, NULL, error);
- parse_elf(output);
- if (!quiet)
- putstr("done.\nBooting the kernel.\n");
- return;
+ debug_putstr("\nDecompressing Linux... ");
+ __decompress(input_data, input_len, NULL, NULL, output, output_len,
+ NULL, error);
+ entry_offset = parse_elf(output);
+ handle_relocations(output, output_len, virt_addr);
+
+ debug_putstr("done.\nBooting the kernel (entry_offset: 0x");
+ debug_puthex(entry_offset);
+ debug_putstr(").\n");
+
+ /* Disable exception handling before booting the kernel */
+ cleanup_exception_handling();
+
+ return output + entry_offset;
+}
+
+void fortify_panic(const char *name)
+{
+ error("detected buffer overflow");
}
diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h
index 3f19c81a6203..2f155a0e3041 100644
--- a/arch/x86/boot/compressed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -1,39 +1,250 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef BOOT_COMPRESSED_MISC_H
#define BOOT_COMPRESSED_MISC_H
/*
- * we have to be careful, because no indirections are allowed here, and
- * paravirt_ops is a kind of one. As it will only run in baremetal anyway,
- * we just keep it from happening
+ * Special hack: we have to be careful, because no indirections are allowed here,
+ * and paravirt_ops is a kind of one. As it will only run in baremetal anyway,
+ * we just keep it from happening. (This list needs to be extended when new
+ * paravirt and debugging variants are added.)
*/
#undef CONFIG_PARAVIRT
-#ifdef CONFIG_X86_32
-#define _ASM_X86_DESC_H 1
-#endif
+#undef CONFIG_PARAVIRT_XXL
+#undef CONFIG_PARAVIRT_SPINLOCKS
+#undef CONFIG_KASAN
+#undef CONFIG_KASAN_GENERIC
+
+#define __NO_FORTIFY
+
+/* cpu_feature_enabled() cannot be used this early */
+#define USE_EARLY_PGTABLE_L5
+
+/*
+ * Boot stub deals with identity mappings, physical and virtual addresses are
+ * the same, so override these defines.
+ *
+ * <asm/page.h> will not define them if they are already defined.
+ */
+#define __pa(x) ((unsigned long)(x))
+#define __va(x) ((void *)((unsigned long)(x)))
#include <linux/linkage.h>
#include <linux/screen_info.h>
#include <linux/elf.h>
-#include <linux/io.h>
#include <asm/page.h>
#include <asm/boot.h>
#include <asm/bootparam.h>
+#include <asm/desc_defs.h>
+
+#include "tdx.h"
+
+#define BOOT_CTYPE_H
+#include <linux/acpi.h>
#define BOOT_BOOT_H
#include "../ctype.h"
+#include "../io.h"
+
+#include "efi.h"
+
+#ifdef CONFIG_X86_64
+#define memptr long
+#else
+#define memptr unsigned
+#endif
+
+/* boot/compressed/vmlinux start and end markers */
+extern char _head[], _end[];
/* misc.c */
-extern struct boot_params *real_mode; /* Pointer to real-mode data */
-void __putstr(int error, const char *s);
-#define putstr(__x) __putstr(0, __x)
-#define puts(__x) __putstr(0, __x)
+extern memptr free_mem_ptr;
+extern memptr free_mem_end_ptr;
+void *malloc(int size);
+void free(void *where);
+extern struct boot_params *boot_params;
+void __putstr(const char *s);
+void __puthex(unsigned long value);
+#define error_putstr(__x) __putstr(__x)
+#define error_puthex(__x) __puthex(__x)
+
+#ifdef CONFIG_X86_VERBOSE_BOOTUP
+
+#define debug_putstr(__x) __putstr(__x)
+#define debug_puthex(__x) __puthex(__x)
+#define debug_putaddr(__x) { \
+ debug_putstr(#__x ": 0x"); \
+ debug_puthex((unsigned long)(__x)); \
+ debug_putstr("\n"); \
+ }
+
+#else
+
+static inline void debug_putstr(const char *s)
+{ }
+static inline void debug_puthex(unsigned long value)
+{ }
+#define debug_putaddr(x) /* */
+
+#endif
/* cmdline.c */
int cmdline_find_option(const char *option, char *buffer, int bufsize);
int cmdline_find_option_bool(const char *option);
+struct mem_vector {
+ u64 start;
+ u64 size;
+};
+
+#ifdef CONFIG_RANDOMIZE_BASE
+/* kaslr.c */
+void choose_random_location(unsigned long input,
+ unsigned long input_size,
+ unsigned long *output,
+ unsigned long output_size,
+ unsigned long *virt_addr);
+#else
+static inline void choose_random_location(unsigned long input,
+ unsigned long input_size,
+ unsigned long *output,
+ unsigned long output_size,
+ unsigned long *virt_addr)
+{
+}
+#endif
+
+/* cpuflags.c */
+bool has_cpuflag(int flag);
+
+#ifdef CONFIG_X86_64
+extern int set_page_decrypted(unsigned long address);
+extern int set_page_encrypted(unsigned long address);
+extern int set_page_non_present(unsigned long address);
+extern unsigned char _pgtable[];
+#endif
+
+#ifdef CONFIG_EARLY_PRINTK
/* early_serial_console.c */
extern int early_serial_base;
void console_init(void);
+#else
+static const int early_serial_base;
+static inline void console_init(void)
+{ }
+#endif
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+void sev_enable(struct boot_params *bp);
+void snp_check_features(void);
+void sev_es_shutdown_ghcb(void);
+extern bool sev_es_check_ghcb_fault(unsigned long address);
+void snp_set_page_private(unsigned long paddr);
+void snp_set_page_shared(unsigned long paddr);
+void sev_prep_identity_maps(unsigned long top_level_pgt);
+#else
+static inline void sev_enable(struct boot_params *bp)
+{
+ /*
+ * bp->cc_blob_address should only be set by boot/compressed kernel.
+ * Initialize it to 0 unconditionally (thus here in this stub too) to
+ * ensure that uninitialized values from buggy bootloaders aren't
+ * propagated.
+ */
+ if (bp)
+ bp->cc_blob_address = 0;
+}
+static inline void snp_check_features(void) { }
+static inline void sev_es_shutdown_ghcb(void) { }
+static inline bool sev_es_check_ghcb_fault(unsigned long address)
+{
+ return false;
+}
+static inline void snp_set_page_private(unsigned long paddr) { }
+static inline void snp_set_page_shared(unsigned long paddr) { }
+static inline void sev_prep_identity_maps(unsigned long top_level_pgt) { }
#endif
+
+/* acpi.c */
+#ifdef CONFIG_ACPI
+acpi_physical_address get_rsdp_addr(void);
+#else
+static inline acpi_physical_address get_rsdp_addr(void) { return 0; }
+#endif
+
+#if defined(CONFIG_RANDOMIZE_BASE) && defined(CONFIG_MEMORY_HOTREMOVE) && defined(CONFIG_ACPI)
+extern struct mem_vector immovable_mem[MAX_NUMNODES*2];
+int count_immovable_mem_regions(void);
+#else
+static inline int count_immovable_mem_regions(void) { return 0; }
+#endif
+
+/* ident_map_64.c */
+#ifdef CONFIG_X86_5LEVEL
+extern unsigned int __pgtable_l5_enabled, pgdir_shift, ptrs_per_p4d;
+#endif
+extern void kernel_add_identity_map(unsigned long start, unsigned long end);
+
+/* Used by PAGE_KERN* macros: */
+extern pteval_t __default_kernel_pte_mask;
+
+/* idt_64.c */
+extern gate_desc boot_idt[BOOT_IDT_ENTRIES];
+extern struct desc_ptr boot_idt_desc;
+
+#ifdef CONFIG_X86_64
+void cleanup_exception_handling(void);
+#else
+static inline void cleanup_exception_handling(void) { }
+#endif
+
+/* IDT Entry Points */
+void boot_page_fault(void);
+void boot_stage1_vc(void);
+void boot_stage2_vc(void);
+
+unsigned long sev_verify_cbit(unsigned long cr3);
+
+enum efi_type {
+ EFI_TYPE_64,
+ EFI_TYPE_32,
+ EFI_TYPE_NONE,
+};
+
+#ifdef CONFIG_EFI
+/* helpers for early EFI config table access */
+enum efi_type efi_get_type(struct boot_params *bp);
+unsigned long efi_get_system_table(struct boot_params *bp);
+int efi_get_conf_table(struct boot_params *bp, unsigned long *cfg_tbl_pa,
+ unsigned int *cfg_tbl_len);
+unsigned long efi_find_vendor_table(struct boot_params *bp,
+ unsigned long cfg_tbl_pa,
+ unsigned int cfg_tbl_len,
+ efi_guid_t guid);
+#else
+static inline enum efi_type efi_get_type(struct boot_params *bp)
+{
+ return EFI_TYPE_NONE;
+}
+
+static inline unsigned long efi_get_system_table(struct boot_params *bp)
+{
+ return 0;
+}
+
+static inline int efi_get_conf_table(struct boot_params *bp,
+ unsigned long *cfg_tbl_pa,
+ unsigned int *cfg_tbl_len)
+{
+ return -ENOENT;
+}
+
+static inline unsigned long efi_find_vendor_table(struct boot_params *bp,
+ unsigned long cfg_tbl_pa,
+ unsigned int cfg_tbl_len,
+ efi_guid_t guid)
+{
+ return 0;
+}
+#endif /* CONFIG_EFI */
+
+#endif /* BOOT_COMPRESSED_MISC_H */
diff --git a/arch/x86/boot/compressed/mkpiggy.c b/arch/x86/boot/compressed/mkpiggy.c
index 46a823882437..52aa56cdbacc 100644
--- a/arch/x86/boot/compressed/mkpiggy.c
+++ b/arch/x86/boot/compressed/mkpiggy.c
@@ -1,53 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* ----------------------------------------------------------------------- *
*
* Copyright (C) 2009 Intel Corporation. All rights reserved.
*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
* H. Peter Anvin <hpa@linux.intel.com>
*
- * ----------------------------------------------------------------------- */
-
-/*
- * Compute the desired load offset from a compressed program; outputs
- * a small assembly wrapper with the appropriate symbols defined.
+ * -----------------------------------------------------------------------
+ *
+ * Outputs a small assembly wrapper with the appropriate symbols defined.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
-
-static uint32_t getle32(const void *p)
-{
- const uint8_t *cp = p;
-
- return (uint32_t)cp[0] + ((uint32_t)cp[1] << 8) +
- ((uint32_t)cp[2] << 16) + ((uint32_t)cp[3] << 24);
-}
+#include <tools/le_byteshift.h>
int main(int argc, char *argv[])
{
uint32_t olen;
long ilen;
- unsigned long offs;
- FILE *f;
+ FILE *f = NULL;
+ int retval = 1;
if (argc < 2) {
fprintf(stderr, "Usage: %s compressed_file\n", argv[0]);
- return 1;
+ goto bail;
}
/* Get the information for the compressed kernel image first */
@@ -55,7 +33,7 @@ int main(int argc, char *argv[])
f = fopen(argv[1], "r");
if (!f) {
perror(argv[1]);
- return 1;
+ goto bail;
}
@@ -65,38 +43,32 @@ int main(int argc, char *argv[])
if (fread(&olen, sizeof(olen), 1, f) != 1) {
perror(argv[1]);
- return 1;
+ goto bail;
}
ilen = ftell(f);
- olen = getle32(&olen);
- fclose(f);
-
- /*
- * Now we have the input (compressed) and output (uncompressed)
- * sizes, compute the necessary decompression offset...
- */
-
- offs = (olen > ilen) ? olen - ilen : 0;
- offs += olen >> 12; /* Add 8 bytes for each 32K block */
- offs += 64*1024 + 128; /* Add 64K + 128 bytes slack */
- offs = (offs+4095) & ~4095; /* Round to a 4K boundary */
+ olen = get_unaligned_le32(&olen);
printf(".section \".rodata..compressed\",\"a\",@progbits\n");
printf(".globl z_input_len\n");
printf("z_input_len = %lu\n", ilen);
printf(".globl z_output_len\n");
printf("z_output_len = %lu\n", (unsigned long)olen);
- printf(".globl z_extract_offset\n");
- printf("z_extract_offset = 0x%lx\n", offs);
- /* z_extract_offset_negative allows simplification of head_32.S */
- printf(".globl z_extract_offset_negative\n");
- printf("z_extract_offset_negative = -0x%lx\n", offs);
printf(".globl input_data, input_data_end\n");
printf("input_data:\n");
printf(".incbin \"%s\"\n", argv[1]);
printf("input_data_end:\n");
- return 0;
+ printf(".section \".rodata\",\"a\",@progbits\n");
+ printf(".globl input_len\n");
+ printf("input_len:\n\t.long %lu\n", ilen);
+ printf(".globl output_len\n");
+ printf("output_len:\n\t.long %lu\n", (unsigned long)olen);
+
+ retval = 0;
+bail:
+ if (f)
+ fclose(f);
+ return retval;
}
diff --git a/arch/x86/boot/compressed/pgtable.h b/arch/x86/boot/compressed/pgtable.h
new file mode 100644
index 000000000000..cc9b2529a086
--- /dev/null
+++ b/arch/x86/boot/compressed/pgtable.h
@@ -0,0 +1,20 @@
+#ifndef BOOT_COMPRESSED_PAGETABLE_H
+#define BOOT_COMPRESSED_PAGETABLE_H
+
+#define TRAMPOLINE_32BIT_SIZE (2 * PAGE_SIZE)
+
+#define TRAMPOLINE_32BIT_PGTABLE_OFFSET 0
+
+#define TRAMPOLINE_32BIT_CODE_OFFSET PAGE_SIZE
+#define TRAMPOLINE_32BIT_CODE_SIZE 0x80
+
+#define TRAMPOLINE_32BIT_STACK_END TRAMPOLINE_32BIT_SIZE
+
+#ifndef __ASSEMBLER__
+
+extern unsigned long *trampoline_32bit;
+
+extern void trampoline_32bit_src(void *return_ptr);
+
+#endif /* __ASSEMBLER__ */
+#endif /* BOOT_COMPRESSED_PAGETABLE_H */
diff --git a/arch/x86/boot/compressed/pgtable_64.c b/arch/x86/boot/compressed/pgtable_64.c
new file mode 100644
index 000000000000..2ac12ff4111b
--- /dev/null
+++ b/arch/x86/boot/compressed/pgtable_64.c
@@ -0,0 +1,218 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "misc.h"
+#include <asm/e820/types.h>
+#include <asm/processor.h>
+#include "pgtable.h"
+#include "../string.h"
+#include "efi.h"
+
+#define BIOS_START_MIN 0x20000U /* 128K, less than this is insane */
+#define BIOS_START_MAX 0x9f000U /* 640K, absolute maximum */
+
+#ifdef CONFIG_X86_5LEVEL
+/* __pgtable_l5_enabled needs to be in .data to avoid being cleared along with .bss */
+unsigned int __section(".data") __pgtable_l5_enabled;
+unsigned int __section(".data") pgdir_shift = 39;
+unsigned int __section(".data") ptrs_per_p4d = 1;
+#endif
+
+struct paging_config {
+ unsigned long trampoline_start;
+ unsigned long l5_required;
+};
+
+/* Buffer to preserve trampoline memory */
+static char trampoline_save[TRAMPOLINE_32BIT_SIZE];
+
+/*
+ * Trampoline address will be printed by extract_kernel() for debugging
+ * purposes.
+ *
+ * Avoid putting the pointer into .bss as it will be cleared between
+ * paging_prepare() and extract_kernel().
+ */
+unsigned long *trampoline_32bit __section(".data");
+
+extern struct boot_params *boot_params;
+int cmdline_find_option_bool(const char *option);
+
+static unsigned long find_trampoline_placement(void)
+{
+ unsigned long bios_start = 0, ebda_start = 0;
+ struct boot_e820_entry *entry;
+ char *signature;
+ int i;
+
+ /*
+ * Find a suitable spot for the trampoline.
+ * This code is based on reserve_bios_regions().
+ */
+
+ /*
+ * EFI systems may not provide legacy ROM. The memory may not be mapped
+ * at all.
+ *
+ * Only look for values in the legacy ROM for non-EFI system.
+ */
+ signature = (char *)&boot_params->efi_info.efi_loader_signature;
+ if (strncmp(signature, EFI32_LOADER_SIGNATURE, 4) &&
+ strncmp(signature, EFI64_LOADER_SIGNATURE, 4)) {
+ ebda_start = *(unsigned short *)0x40e << 4;
+ bios_start = *(unsigned short *)0x413 << 10;
+ }
+
+ if (bios_start < BIOS_START_MIN || bios_start > BIOS_START_MAX)
+ bios_start = BIOS_START_MAX;
+
+ if (ebda_start > BIOS_START_MIN && ebda_start < bios_start)
+ bios_start = ebda_start;
+
+ bios_start = round_down(bios_start, PAGE_SIZE);
+
+ /* Find the first usable memory region under bios_start. */
+ for (i = boot_params->e820_entries - 1; i >= 0; i--) {
+ unsigned long new = bios_start;
+
+ entry = &boot_params->e820_table[i];
+
+ /* Skip all entries above bios_start. */
+ if (bios_start <= entry->addr)
+ continue;
+
+ /* Skip non-RAM entries. */
+ if (entry->type != E820_TYPE_RAM)
+ continue;
+
+ /* Adjust bios_start to the end of the entry if needed. */
+ if (bios_start > entry->addr + entry->size)
+ new = entry->addr + entry->size;
+
+ /* Keep bios_start page-aligned. */
+ new = round_down(new, PAGE_SIZE);
+
+ /* Skip the entry if it's too small. */
+ if (new - TRAMPOLINE_32BIT_SIZE < entry->addr)
+ continue;
+
+ /* Protect against underflow. */
+ if (new - TRAMPOLINE_32BIT_SIZE > bios_start)
+ break;
+
+ bios_start = new;
+ break;
+ }
+
+ /* Place the trampoline just below the end of low memory */
+ return bios_start - TRAMPOLINE_32BIT_SIZE;
+}
+
+struct paging_config paging_prepare(void *rmode)
+{
+ struct paging_config paging_config = {};
+
+ /* Initialize boot_params. Required for cmdline_find_option_bool(). */
+ boot_params = rmode;
+
+ /*
+ * Check if LA57 is desired and supported.
+ *
+ * There are several parts to the check:
+ * - if the kernel supports 5-level paging: CONFIG_X86_5LEVEL=y
+ * - if user asked to disable 5-level paging: no5lvl in cmdline
+ * - if the machine supports 5-level paging:
+ * + CPUID leaf 7 is supported
+ * + the leaf has the feature bit set
+ *
+ * That's substitute for boot_cpu_has() in early boot code.
+ */
+ if (IS_ENABLED(CONFIG_X86_5LEVEL) &&
+ !cmdline_find_option_bool("no5lvl") &&
+ native_cpuid_eax(0) >= 7 &&
+ (native_cpuid_ecx(7) & (1 << (X86_FEATURE_LA57 & 31)))) {
+ paging_config.l5_required = 1;
+ }
+
+ paging_config.trampoline_start = find_trampoline_placement();
+
+ trampoline_32bit = (unsigned long *)paging_config.trampoline_start;
+
+ /* Preserve trampoline memory */
+ memcpy(trampoline_save, trampoline_32bit, TRAMPOLINE_32BIT_SIZE);
+
+ /* Clear trampoline memory first */
+ memset(trampoline_32bit, 0, TRAMPOLINE_32BIT_SIZE);
+
+ /* Copy trampoline code in place */
+ memcpy(trampoline_32bit + TRAMPOLINE_32BIT_CODE_OFFSET / sizeof(unsigned long),
+ &trampoline_32bit_src, TRAMPOLINE_32BIT_CODE_SIZE);
+
+ /*
+ * The code below prepares page table in trampoline memory.
+ *
+ * The new page table will be used by trampoline code for switching
+ * from 4- to 5-level paging or vice versa.
+ *
+ * If switching is not required, the page table is unused: trampoline
+ * code wouldn't touch CR3.
+ */
+
+ /*
+ * We are not going to use the page table in trampoline memory if we
+ * are already in the desired paging mode.
+ */
+ if (paging_config.l5_required == !!(native_read_cr4() & X86_CR4_LA57))
+ goto out;
+
+ if (paging_config.l5_required) {
+ /*
+ * For 4- to 5-level paging transition, set up current CR3 as
+ * the first and the only entry in a new top-level page table.
+ */
+ trampoline_32bit[TRAMPOLINE_32BIT_PGTABLE_OFFSET] = __native_read_cr3() | _PAGE_TABLE_NOENC;
+ } else {
+ unsigned long src;
+
+ /*
+ * For 5- to 4-level paging transition, copy page table pointed
+ * by first entry in the current top-level page table as our
+ * new top-level page table.
+ *
+ * We cannot just point to the page table from trampoline as it
+ * may be above 4G.
+ */
+ src = *(unsigned long *)__native_read_cr3() & PAGE_MASK;
+ memcpy(trampoline_32bit + TRAMPOLINE_32BIT_PGTABLE_OFFSET / sizeof(unsigned long),
+ (void *)src, PAGE_SIZE);
+ }
+
+out:
+ return paging_config;
+}
+
+void cleanup_trampoline(void *pgtable)
+{
+ void *trampoline_pgtable;
+
+ trampoline_pgtable = trampoline_32bit + TRAMPOLINE_32BIT_PGTABLE_OFFSET / sizeof(unsigned long);
+
+ /*
+ * Move the top level page table out of trampoline memory,
+ * if it's there.
+ */
+ if ((void *)__native_read_cr3() == trampoline_pgtable) {
+ memcpy(pgtable, trampoline_pgtable, PAGE_SIZE);
+ native_write_cr3((unsigned long)pgtable);
+ }
+
+ /* Restore trampoline memory */
+ memcpy(trampoline_32bit, trampoline_save, TRAMPOLINE_32BIT_SIZE);
+
+ /* Initialize variables for 5-level paging */
+#ifdef CONFIG_X86_5LEVEL
+ if (__read_cr4() & X86_CR4_LA57) {
+ __pgtable_l5_enabled = 1;
+ pgdir_shift = 48;
+ ptrs_per_p4d = 512;
+ }
+#endif
+}
diff --git a/arch/x86/boot/compressed/relocs.c b/arch/x86/boot/compressed/relocs.c
deleted file mode 100644
index 89bbf4e4d05d..000000000000
--- a/arch/x86/boot/compressed/relocs.c
+++ /dev/null
@@ -1,682 +0,0 @@
-#include <stdio.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <errno.h>
-#include <unistd.h>
-#include <elf.h>
-#include <byteswap.h>
-#define USE_BSD
-#include <endian.h>
-#include <regex.h>
-
-static void die(char *fmt, ...);
-
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
-static Elf32_Ehdr ehdr;
-static unsigned long reloc_count, reloc_idx;
-static unsigned long *relocs;
-
-struct section {
- Elf32_Shdr shdr;
- struct section *link;
- Elf32_Sym *symtab;
- Elf32_Rel *reltab;
- char *strtab;
-};
-static struct section *secs;
-
-/*
- * Following symbols have been audited. There values are constant and do
- * not change if bzImage is loaded at a different physical address than
- * the address for which it has been compiled. Don't warn user about
- * absolute relocations present w.r.t these symbols.
- */
-static const char abs_sym_regex[] =
- "^(xen_irq_disable_direct_reloc$|"
- "xen_save_fl_direct_reloc$|"
- "VDSO|"
- "__crc_)";
-static regex_t abs_sym_regex_c;
-static int is_abs_reloc(const char *sym_name)
-{
- return !regexec(&abs_sym_regex_c, sym_name, 0, NULL, 0);
-}
-
-/*
- * These symbols are known to be relative, even if the linker marks them
- * as absolute (typically defined outside any section in the linker script.)
- */
-static const char rel_sym_regex[] =
- "^_end$";
-static regex_t rel_sym_regex_c;
-static int is_rel_reloc(const char *sym_name)
-{
- return !regexec(&rel_sym_regex_c, sym_name, 0, NULL, 0);
-}
-
-static void regex_init(void)
-{
- char errbuf[128];
- int err;
-
- err = regcomp(&abs_sym_regex_c, abs_sym_regex,
- REG_EXTENDED|REG_NOSUB);
- if (err) {
- regerror(err, &abs_sym_regex_c, errbuf, sizeof errbuf);
- die("%s", errbuf);
- }
-
- err = regcomp(&rel_sym_regex_c, rel_sym_regex,
- REG_EXTENDED|REG_NOSUB);
- if (err) {
- regerror(err, &rel_sym_regex_c, errbuf, sizeof errbuf);
- die("%s", errbuf);
- }
-}
-
-static void die(char *fmt, ...)
-{
- va_list ap;
- va_start(ap, fmt);
- vfprintf(stderr, fmt, ap);
- va_end(ap);
- exit(1);
-}
-
-static const char *sym_type(unsigned type)
-{
- static const char *type_name[] = {
-#define SYM_TYPE(X) [X] = #X
- SYM_TYPE(STT_NOTYPE),
- SYM_TYPE(STT_OBJECT),
- SYM_TYPE(STT_FUNC),
- SYM_TYPE(STT_SECTION),
- SYM_TYPE(STT_FILE),
- SYM_TYPE(STT_COMMON),
- SYM_TYPE(STT_TLS),
-#undef SYM_TYPE
- };
- const char *name = "unknown sym type name";
- if (type < ARRAY_SIZE(type_name)) {
- name = type_name[type];
- }
- return name;
-}
-
-static const char *sym_bind(unsigned bind)
-{
- static const char *bind_name[] = {
-#define SYM_BIND(X) [X] = #X
- SYM_BIND(STB_LOCAL),
- SYM_BIND(STB_GLOBAL),
- SYM_BIND(STB_WEAK),
-#undef SYM_BIND
- };
- const char *name = "unknown sym bind name";
- if (bind < ARRAY_SIZE(bind_name)) {
- name = bind_name[bind];
- }
- return name;
-}
-
-static const char *sym_visibility(unsigned visibility)
-{
- static const char *visibility_name[] = {
-#define SYM_VISIBILITY(X) [X] = #X
- SYM_VISIBILITY(STV_DEFAULT),
- SYM_VISIBILITY(STV_INTERNAL),
- SYM_VISIBILITY(STV_HIDDEN),
- SYM_VISIBILITY(STV_PROTECTED),
-#undef SYM_VISIBILITY
- };
- const char *name = "unknown sym visibility name";
- if (visibility < ARRAY_SIZE(visibility_name)) {
- name = visibility_name[visibility];
- }
- return name;
-}
-
-static const char *rel_type(unsigned type)
-{
- static const char *type_name[] = {
-#define REL_TYPE(X) [X] = #X
- REL_TYPE(R_386_NONE),
- REL_TYPE(R_386_32),
- REL_TYPE(R_386_PC32),
- REL_TYPE(R_386_GOT32),
- REL_TYPE(R_386_PLT32),
- REL_TYPE(R_386_COPY),
- REL_TYPE(R_386_GLOB_DAT),
- REL_TYPE(R_386_JMP_SLOT),
- REL_TYPE(R_386_RELATIVE),
- REL_TYPE(R_386_GOTOFF),
- REL_TYPE(R_386_GOTPC),
-#undef REL_TYPE
- };
- const char *name = "unknown type rel type name";
- if (type < ARRAY_SIZE(type_name) && type_name[type]) {
- name = type_name[type];
- }
- return name;
-}
-
-static const char *sec_name(unsigned shndx)
-{
- const char *sec_strtab;
- const char *name;
- sec_strtab = secs[ehdr.e_shstrndx].strtab;
- name = "<noname>";
- if (shndx < ehdr.e_shnum) {
- name = sec_strtab + secs[shndx].shdr.sh_name;
- }
- else if (shndx == SHN_ABS) {
- name = "ABSOLUTE";
- }
- else if (shndx == SHN_COMMON) {
- name = "COMMON";
- }
- return name;
-}
-
-static const char *sym_name(const char *sym_strtab, Elf32_Sym *sym)
-{
- const char *name;
- name = "<noname>";
- if (sym->st_name) {
- name = sym_strtab + sym->st_name;
- }
- else {
- name = sec_name(secs[sym->st_shndx].shdr.sh_name);
- }
- return name;
-}
-
-
-
-#if BYTE_ORDER == LITTLE_ENDIAN
-#define le16_to_cpu(val) (val)
-#define le32_to_cpu(val) (val)
-#endif
-#if BYTE_ORDER == BIG_ENDIAN
-#define le16_to_cpu(val) bswap_16(val)
-#define le32_to_cpu(val) bswap_32(val)
-#endif
-
-static uint16_t elf16_to_cpu(uint16_t val)
-{
- return le16_to_cpu(val);
-}
-
-static uint32_t elf32_to_cpu(uint32_t val)
-{
- return le32_to_cpu(val);
-}
-
-static void read_ehdr(FILE *fp)
-{
- if (fread(&ehdr, sizeof(ehdr), 1, fp) != 1) {
- die("Cannot read ELF header: %s\n",
- strerror(errno));
- }
- if (memcmp(ehdr.e_ident, ELFMAG, SELFMAG) != 0) {
- die("No ELF magic\n");
- }
- if (ehdr.e_ident[EI_CLASS] != ELFCLASS32) {
- die("Not a 32 bit executable\n");
- }
- if (ehdr.e_ident[EI_DATA] != ELFDATA2LSB) {
- die("Not a LSB ELF executable\n");
- }
- if (ehdr.e_ident[EI_VERSION] != EV_CURRENT) {
- die("Unknown ELF version\n");
- }
- /* Convert the fields to native endian */
- ehdr.e_type = elf16_to_cpu(ehdr.e_type);
- ehdr.e_machine = elf16_to_cpu(ehdr.e_machine);
- ehdr.e_version = elf32_to_cpu(ehdr.e_version);
- ehdr.e_entry = elf32_to_cpu(ehdr.e_entry);
- ehdr.e_phoff = elf32_to_cpu(ehdr.e_phoff);
- ehdr.e_shoff = elf32_to_cpu(ehdr.e_shoff);
- ehdr.e_flags = elf32_to_cpu(ehdr.e_flags);
- ehdr.e_ehsize = elf16_to_cpu(ehdr.e_ehsize);
- ehdr.e_phentsize = elf16_to_cpu(ehdr.e_phentsize);
- ehdr.e_phnum = elf16_to_cpu(ehdr.e_phnum);
- ehdr.e_shentsize = elf16_to_cpu(ehdr.e_shentsize);
- ehdr.e_shnum = elf16_to_cpu(ehdr.e_shnum);
- ehdr.e_shstrndx = elf16_to_cpu(ehdr.e_shstrndx);
-
- if ((ehdr.e_type != ET_EXEC) && (ehdr.e_type != ET_DYN)) {
- die("Unsupported ELF header type\n");
- }
- if (ehdr.e_machine != EM_386) {
- die("Not for x86\n");
- }
- if (ehdr.e_version != EV_CURRENT) {
- die("Unknown ELF version\n");
- }
- if (ehdr.e_ehsize != sizeof(Elf32_Ehdr)) {
- die("Bad Elf header size\n");
- }
- if (ehdr.e_phentsize != sizeof(Elf32_Phdr)) {
- die("Bad program header entry\n");
- }
- if (ehdr.e_shentsize != sizeof(Elf32_Shdr)) {
- die("Bad section header entry\n");
- }
- if (ehdr.e_shstrndx >= ehdr.e_shnum) {
- die("String table index out of bounds\n");
- }
-}
-
-static void read_shdrs(FILE *fp)
-{
- int i;
- Elf32_Shdr shdr;
-
- secs = calloc(ehdr.e_shnum, sizeof(struct section));
- if (!secs) {
- die("Unable to allocate %d section headers\n",
- ehdr.e_shnum);
- }
- if (fseek(fp, ehdr.e_shoff, SEEK_SET) < 0) {
- die("Seek to %d failed: %s\n",
- ehdr.e_shoff, strerror(errno));
- }
- for (i = 0; i < ehdr.e_shnum; i++) {
- struct section *sec = &secs[i];
- if (fread(&shdr, sizeof shdr, 1, fp) != 1)
- die("Cannot read ELF section headers %d/%d: %s\n",
- i, ehdr.e_shnum, strerror(errno));
- sec->shdr.sh_name = elf32_to_cpu(shdr.sh_name);
- sec->shdr.sh_type = elf32_to_cpu(shdr.sh_type);
- sec->shdr.sh_flags = elf32_to_cpu(shdr.sh_flags);
- sec->shdr.sh_addr = elf32_to_cpu(shdr.sh_addr);
- sec->shdr.sh_offset = elf32_to_cpu(shdr.sh_offset);
- sec->shdr.sh_size = elf32_to_cpu(shdr.sh_size);
- sec->shdr.sh_link = elf32_to_cpu(shdr.sh_link);
- sec->shdr.sh_info = elf32_to_cpu(shdr.sh_info);
- sec->shdr.sh_addralign = elf32_to_cpu(shdr.sh_addralign);
- sec->shdr.sh_entsize = elf32_to_cpu(shdr.sh_entsize);
- if (sec->shdr.sh_link < ehdr.e_shnum)
- sec->link = &secs[sec->shdr.sh_link];
- }
-
-}
-
-static void read_strtabs(FILE *fp)
-{
- int i;
- for (i = 0; i < ehdr.e_shnum; i++) {
- struct section *sec = &secs[i];
- if (sec->shdr.sh_type != SHT_STRTAB) {
- continue;
- }
- sec->strtab = malloc(sec->shdr.sh_size);
- if (!sec->strtab) {
- die("malloc of %d bytes for strtab failed\n",
- sec->shdr.sh_size);
- }
- if (fseek(fp, sec->shdr.sh_offset, SEEK_SET) < 0) {
- die("Seek to %d failed: %s\n",
- sec->shdr.sh_offset, strerror(errno));
- }
- if (fread(sec->strtab, 1, sec->shdr.sh_size, fp)
- != sec->shdr.sh_size) {
- die("Cannot read symbol table: %s\n",
- strerror(errno));
- }
- }
-}
-
-static void read_symtabs(FILE *fp)
-{
- int i,j;
- for (i = 0; i < ehdr.e_shnum; i++) {
- struct section *sec = &secs[i];
- if (sec->shdr.sh_type != SHT_SYMTAB) {
- continue;
- }
- sec->symtab = malloc(sec->shdr.sh_size);
- if (!sec->symtab) {
- die("malloc of %d bytes for symtab failed\n",
- sec->shdr.sh_size);
- }
- if (fseek(fp, sec->shdr.sh_offset, SEEK_SET) < 0) {
- die("Seek to %d failed: %s\n",
- sec->shdr.sh_offset, strerror(errno));
- }
- if (fread(sec->symtab, 1, sec->shdr.sh_size, fp)
- != sec->shdr.sh_size) {
- die("Cannot read symbol table: %s\n",
- strerror(errno));
- }
- for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Sym); j++) {
- Elf32_Sym *sym = &sec->symtab[j];
- sym->st_name = elf32_to_cpu(sym->st_name);
- sym->st_value = elf32_to_cpu(sym->st_value);
- sym->st_size = elf32_to_cpu(sym->st_size);
- sym->st_shndx = elf16_to_cpu(sym->st_shndx);
- }
- }
-}
-
-
-static void read_relocs(FILE *fp)
-{
- int i,j;
- for (i = 0; i < ehdr.e_shnum; i++) {
- struct section *sec = &secs[i];
- if (sec->shdr.sh_type != SHT_REL) {
- continue;
- }
- sec->reltab = malloc(sec->shdr.sh_size);
- if (!sec->reltab) {
- die("malloc of %d bytes for relocs failed\n",
- sec->shdr.sh_size);
- }
- if (fseek(fp, sec->shdr.sh_offset, SEEK_SET) < 0) {
- die("Seek to %d failed: %s\n",
- sec->shdr.sh_offset, strerror(errno));
- }
- if (fread(sec->reltab, 1, sec->shdr.sh_size, fp)
- != sec->shdr.sh_size) {
- die("Cannot read symbol table: %s\n",
- strerror(errno));
- }
- for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
- Elf32_Rel *rel = &sec->reltab[j];
- rel->r_offset = elf32_to_cpu(rel->r_offset);
- rel->r_info = elf32_to_cpu(rel->r_info);
- }
- }
-}
-
-
-static void print_absolute_symbols(void)
-{
- int i;
- printf("Absolute symbols\n");
- printf(" Num: Value Size Type Bind Visibility Name\n");
- for (i = 0; i < ehdr.e_shnum; i++) {
- struct section *sec = &secs[i];
- char *sym_strtab;
- Elf32_Sym *sh_symtab;
- int j;
-
- if (sec->shdr.sh_type != SHT_SYMTAB) {
- continue;
- }
- sh_symtab = sec->symtab;
- sym_strtab = sec->link->strtab;
- for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Sym); j++) {
- Elf32_Sym *sym;
- const char *name;
- sym = &sec->symtab[j];
- name = sym_name(sym_strtab, sym);
- if (sym->st_shndx != SHN_ABS) {
- continue;
- }
- printf("%5d %08x %5d %10s %10s %12s %s\n",
- j, sym->st_value, sym->st_size,
- sym_type(ELF32_ST_TYPE(sym->st_info)),
- sym_bind(ELF32_ST_BIND(sym->st_info)),
- sym_visibility(ELF32_ST_VISIBILITY(sym->st_other)),
- name);
- }
- }
- printf("\n");
-}
-
-static void print_absolute_relocs(void)
-{
- int i, printed = 0;
-
- for (i = 0; i < ehdr.e_shnum; i++) {
- struct section *sec = &secs[i];
- struct section *sec_applies, *sec_symtab;
- char *sym_strtab;
- Elf32_Sym *sh_symtab;
- int j;
- if (sec->shdr.sh_type != SHT_REL) {
- continue;
- }
- sec_symtab = sec->link;
- sec_applies = &secs[sec->shdr.sh_info];
- if (!(sec_applies->shdr.sh_flags & SHF_ALLOC)) {
- continue;
- }
- sh_symtab = sec_symtab->symtab;
- sym_strtab = sec_symtab->link->strtab;
- for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
- Elf32_Rel *rel;
- Elf32_Sym *sym;
- const char *name;
- rel = &sec->reltab[j];
- sym = &sh_symtab[ELF32_R_SYM(rel->r_info)];
- name = sym_name(sym_strtab, sym);
- if (sym->st_shndx != SHN_ABS) {
- continue;
- }
-
- /* Absolute symbols are not relocated if bzImage is
- * loaded at a non-compiled address. Display a warning
- * to user at compile time about the absolute
- * relocations present.
- *
- * User need to audit the code to make sure
- * some symbols which should have been section
- * relative have not become absolute because of some
- * linker optimization or wrong programming usage.
- *
- * Before warning check if this absolute symbol
- * relocation is harmless.
- */
- if (is_abs_reloc(name) || is_rel_reloc(name))
- continue;
-
- if (!printed) {
- printf("WARNING: Absolute relocations"
- " present\n");
- printf("Offset Info Type Sym.Value "
- "Sym.Name\n");
- printed = 1;
- }
-
- printf("%08x %08x %10s %08x %s\n",
- rel->r_offset,
- rel->r_info,
- rel_type(ELF32_R_TYPE(rel->r_info)),
- sym->st_value,
- name);
- }
- }
-
- if (printed)
- printf("\n");
-}
-
-static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym))
-{
- int i;
- /* Walk through the relocations */
- for (i = 0; i < ehdr.e_shnum; i++) {
- char *sym_strtab;
- Elf32_Sym *sh_symtab;
- struct section *sec_applies, *sec_symtab;
- int j;
- struct section *sec = &secs[i];
-
- if (sec->shdr.sh_type != SHT_REL) {
- continue;
- }
- sec_symtab = sec->link;
- sec_applies = &secs[sec->shdr.sh_info];
- if (!(sec_applies->shdr.sh_flags & SHF_ALLOC)) {
- continue;
- }
- sh_symtab = sec_symtab->symtab;
- sym_strtab = sec_symtab->link->strtab;
- for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) {
- Elf32_Rel *rel;
- Elf32_Sym *sym;
- unsigned r_type;
- rel = &sec->reltab[j];
- sym = &sh_symtab[ELF32_R_SYM(rel->r_info)];
- r_type = ELF32_R_TYPE(rel->r_info);
- /* Don't visit relocations to absolute symbols */
- if (sym->st_shndx == SHN_ABS &&
- !is_rel_reloc(sym_name(sym_strtab, sym))) {
- continue;
- }
- switch (r_type) {
- case R_386_NONE:
- case R_386_PC32:
- /*
- * NONE can be ignored and and PC relative
- * relocations don't need to be adjusted.
- */
- break;
- case R_386_32:
- /* Visit relocations that need to be adjusted */
- visit(rel, sym);
- break;
- default:
- die("Unsupported relocation type: %s (%d)\n",
- rel_type(r_type), r_type);
- break;
- }
- }
- }
-}
-
-static void count_reloc(Elf32_Rel *rel, Elf32_Sym *sym)
-{
- reloc_count += 1;
-}
-
-static void collect_reloc(Elf32_Rel *rel, Elf32_Sym *sym)
-{
- /* Remember the address that needs to be adjusted. */
- relocs[reloc_idx++] = rel->r_offset;
-}
-
-static int cmp_relocs(const void *va, const void *vb)
-{
- const unsigned long *a, *b;
- a = va; b = vb;
- return (*a == *b)? 0 : (*a > *b)? 1 : -1;
-}
-
-static void emit_relocs(int as_text)
-{
- int i;
- /* Count how many relocations I have and allocate space for them. */
- reloc_count = 0;
- walk_relocs(count_reloc);
- relocs = malloc(reloc_count * sizeof(relocs[0]));
- if (!relocs) {
- die("malloc of %d entries for relocs failed\n",
- reloc_count);
- }
- /* Collect up the relocations */
- reloc_idx = 0;
- walk_relocs(collect_reloc);
-
- /* Order the relocations for more efficient processing */
- qsort(relocs, reloc_count, sizeof(relocs[0]), cmp_relocs);
-
- /* Print the relocations */
- if (as_text) {
- /* Print the relocations in a form suitable that
- * gas will like.
- */
- printf(".section \".data.reloc\",\"a\"\n");
- printf(".balign 4\n");
- for (i = 0; i < reloc_count; i++) {
- printf("\t .long 0x%08lx\n", relocs[i]);
- }
- printf("\n");
- }
- else {
- unsigned char buf[4];
- /* Print a stop */
- fwrite("\0\0\0\0", 4, 1, stdout);
- /* Now print each relocation */
- for (i = 0; i < reloc_count; i++) {
- buf[0] = (relocs[i] >> 0) & 0xff;
- buf[1] = (relocs[i] >> 8) & 0xff;
- buf[2] = (relocs[i] >> 16) & 0xff;
- buf[3] = (relocs[i] >> 24) & 0xff;
- fwrite(buf, 4, 1, stdout);
- }
- }
-}
-
-static void usage(void)
-{
- die("relocs [--abs-syms |--abs-relocs | --text] vmlinux\n");
-}
-
-int main(int argc, char **argv)
-{
- int show_absolute_syms, show_absolute_relocs;
- int as_text;
- const char *fname;
- FILE *fp;
- int i;
-
- regex_init();
-
- show_absolute_syms = 0;
- show_absolute_relocs = 0;
- as_text = 0;
- fname = NULL;
- for (i = 1; i < argc; i++) {
- char *arg = argv[i];
- if (*arg == '-') {
- if (strcmp(argv[1], "--abs-syms") == 0) {
- show_absolute_syms = 1;
- continue;
- }
-
- if (strcmp(argv[1], "--abs-relocs") == 0) {
- show_absolute_relocs = 1;
- continue;
- }
- else if (strcmp(argv[1], "--text") == 0) {
- as_text = 1;
- continue;
- }
- }
- else if (!fname) {
- fname = arg;
- continue;
- }
- usage();
- }
- if (!fname) {
- usage();
- }
- fp = fopen(fname, "r");
- if (!fp) {
- die("Cannot open %s: %s\n",
- fname, strerror(errno));
- }
- read_ehdr(fp);
- read_shdrs(fp);
- read_strtabs(fp);
- read_symtabs(fp);
- read_relocs(fp);
- if (show_absolute_syms) {
- print_absolute_symbols();
- return 0;
- }
- if (show_absolute_relocs) {
- print_absolute_relocs();
- return 0;
- }
- emit_relocs(as_text);
- return 0;
-}
diff --git a/arch/x86/boot/compressed/sev.c b/arch/x86/boot/compressed/sev.c
new file mode 100644
index 000000000000..014b89c89088
--- /dev/null
+++ b/arch/x86/boot/compressed/sev.c
@@ -0,0 +1,513 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * AMD Encrypted Register State Support
+ *
+ * Author: Joerg Roedel <jroedel@suse.de>
+ */
+
+/*
+ * misc.h needs to be first because it knows how to include the other kernel
+ * headers in the pre-decompression code in a way that does not break
+ * compilation.
+ */
+#include "misc.h"
+
+#include <asm/pgtable_types.h>
+#include <asm/sev.h>
+#include <asm/trapnr.h>
+#include <asm/trap_pf.h>
+#include <asm/msr-index.h>
+#include <asm/fpu/xcr.h>
+#include <asm/ptrace.h>
+#include <asm/svm.h>
+#include <asm/cpuid.h>
+
+#include "error.h"
+#include "../msr.h"
+
+struct ghcb boot_ghcb_page __aligned(PAGE_SIZE);
+struct ghcb *boot_ghcb;
+
+/*
+ * Copy a version of this function here - insn-eval.c can't be used in
+ * pre-decompression code.
+ */
+static bool insn_has_rep_prefix(struct insn *insn)
+{
+ insn_byte_t p;
+ int i;
+
+ insn_get_prefixes(insn);
+
+ for_each_insn_prefix(insn, i, p) {
+ if (p == 0xf2 || p == 0xf3)
+ return true;
+ }
+
+ return false;
+}
+
+/*
+ * Only a dummy for insn_get_seg_base() - Early boot-code is 64bit only and
+ * doesn't use segments.
+ */
+static unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx)
+{
+ return 0UL;
+}
+
+static inline u64 sev_es_rd_ghcb_msr(void)
+{
+ struct msr m;
+
+ boot_rdmsr(MSR_AMD64_SEV_ES_GHCB, &m);
+
+ return m.q;
+}
+
+static inline void sev_es_wr_ghcb_msr(u64 val)
+{
+ struct msr m;
+
+ m.q = val;
+ boot_wrmsr(MSR_AMD64_SEV_ES_GHCB, &m);
+}
+
+static enum es_result vc_decode_insn(struct es_em_ctxt *ctxt)
+{
+ char buffer[MAX_INSN_SIZE];
+ int ret;
+
+ memcpy(buffer, (unsigned char *)ctxt->regs->ip, MAX_INSN_SIZE);
+
+ ret = insn_decode(&ctxt->insn, buffer, MAX_INSN_SIZE, INSN_MODE_64);
+ if (ret < 0)
+ return ES_DECODE_FAILED;
+
+ return ES_OK;
+}
+
+static enum es_result vc_write_mem(struct es_em_ctxt *ctxt,
+ void *dst, char *buf, size_t size)
+{
+ memcpy(dst, buf, size);
+
+ return ES_OK;
+}
+
+static enum es_result vc_read_mem(struct es_em_ctxt *ctxt,
+ void *src, char *buf, size_t size)
+{
+ memcpy(buf, src, size);
+
+ return ES_OK;
+}
+
+#undef __init
+#define __init
+
+#define __BOOT_COMPRESSED
+
+/* Basic instruction decoding support needed */
+#include "../../lib/inat.c"
+#include "../../lib/insn.c"
+
+/* Include code for early handlers */
+#include "../../kernel/sev-shared.c"
+
+static inline bool sev_snp_enabled(void)
+{
+ return sev_status & MSR_AMD64_SEV_SNP_ENABLED;
+}
+
+static void __page_state_change(unsigned long paddr, enum psc_op op)
+{
+ u64 val;
+
+ if (!sev_snp_enabled())
+ return;
+
+ /*
+ * If private -> shared then invalidate the page before requesting the
+ * state change in the RMP table.
+ */
+ if (op == SNP_PAGE_STATE_SHARED && pvalidate(paddr, RMP_PG_SIZE_4K, 0))
+ sev_es_terminate(SEV_TERM_SET_LINUX, GHCB_TERM_PVALIDATE);
+
+ /* Issue VMGEXIT to change the page state in RMP table. */
+ sev_es_wr_ghcb_msr(GHCB_MSR_PSC_REQ_GFN(paddr >> PAGE_SHIFT, op));
+ VMGEXIT();
+
+ /* Read the response of the VMGEXIT. */
+ val = sev_es_rd_ghcb_msr();
+ if ((GHCB_RESP_CODE(val) != GHCB_MSR_PSC_RESP) || GHCB_MSR_PSC_RESP_VAL(val))
+ sev_es_terminate(SEV_TERM_SET_LINUX, GHCB_TERM_PSC);
+
+ /*
+ * Now that page state is changed in the RMP table, validate it so that it is
+ * consistent with the RMP entry.
+ */
+ if (op == SNP_PAGE_STATE_PRIVATE && pvalidate(paddr, RMP_PG_SIZE_4K, 1))
+ sev_es_terminate(SEV_TERM_SET_LINUX, GHCB_TERM_PVALIDATE);
+}
+
+void snp_set_page_private(unsigned long paddr)
+{
+ __page_state_change(paddr, SNP_PAGE_STATE_PRIVATE);
+}
+
+void snp_set_page_shared(unsigned long paddr)
+{
+ __page_state_change(paddr, SNP_PAGE_STATE_SHARED);
+}
+
+static bool early_setup_ghcb(void)
+{
+ if (set_page_decrypted((unsigned long)&boot_ghcb_page))
+ return false;
+
+ /* Page is now mapped decrypted, clear it */
+ memset(&boot_ghcb_page, 0, sizeof(boot_ghcb_page));
+
+ boot_ghcb = &boot_ghcb_page;
+
+ /* Initialize lookup tables for the instruction decoder */
+ inat_init_tables();
+
+ /* SNP guest requires the GHCB GPA must be registered */
+ if (sev_snp_enabled())
+ snp_register_ghcb_early(__pa(&boot_ghcb_page));
+
+ return true;
+}
+
+void sev_es_shutdown_ghcb(void)
+{
+ if (!boot_ghcb)
+ return;
+
+ if (!sev_es_check_cpu_features())
+ error("SEV-ES CPU Features missing.");
+
+ /*
+ * GHCB Page must be flushed from the cache and mapped encrypted again.
+ * Otherwise the running kernel will see strange cache effects when
+ * trying to use that page.
+ */
+ if (set_page_encrypted((unsigned long)&boot_ghcb_page))
+ error("Can't map GHCB page encrypted");
+
+ /*
+ * GHCB page is mapped encrypted again and flushed from the cache.
+ * Mark it non-present now to catch bugs when #VC exceptions trigger
+ * after this point.
+ */
+ if (set_page_non_present((unsigned long)&boot_ghcb_page))
+ error("Can't unmap GHCB page");
+}
+
+static void __noreturn sev_es_ghcb_terminate(struct ghcb *ghcb, unsigned int set,
+ unsigned int reason, u64 exit_info_2)
+{
+ u64 exit_info_1 = SVM_VMGEXIT_TERM_REASON(set, reason);
+
+ vc_ghcb_invalidate(ghcb);
+ ghcb_set_sw_exit_code(ghcb, SVM_VMGEXIT_TERM_REQUEST);
+ ghcb_set_sw_exit_info_1(ghcb, exit_info_1);
+ ghcb_set_sw_exit_info_2(ghcb, exit_info_2);
+
+ sev_es_wr_ghcb_msr(__pa(ghcb));
+ VMGEXIT();
+
+ while (true)
+ asm volatile("hlt\n" : : : "memory");
+}
+
+bool sev_es_check_ghcb_fault(unsigned long address)
+{
+ /* Check whether the fault was on the GHCB page */
+ return ((address & PAGE_MASK) == (unsigned long)&boot_ghcb_page);
+}
+
+void do_boot_stage2_vc(struct pt_regs *regs, unsigned long exit_code)
+{
+ struct es_em_ctxt ctxt;
+ enum es_result result;
+
+ if (!boot_ghcb && !early_setup_ghcb())
+ sev_es_terminate(SEV_TERM_SET_GEN, GHCB_SEV_ES_GEN_REQ);
+
+ vc_ghcb_invalidate(boot_ghcb);
+ result = vc_init_em_ctxt(&ctxt, regs, exit_code);
+ if (result != ES_OK)
+ goto finish;
+
+ switch (exit_code) {
+ case SVM_EXIT_RDTSC:
+ case SVM_EXIT_RDTSCP:
+ result = vc_handle_rdtsc(boot_ghcb, &ctxt, exit_code);
+ break;
+ case SVM_EXIT_IOIO:
+ result = vc_handle_ioio(boot_ghcb, &ctxt);
+ break;
+ case SVM_EXIT_CPUID:
+ result = vc_handle_cpuid(boot_ghcb, &ctxt);
+ break;
+ default:
+ result = ES_UNSUPPORTED;
+ break;
+ }
+
+finish:
+ if (result == ES_OK)
+ vc_finish_insn(&ctxt);
+ else if (result != ES_RETRY)
+ sev_es_terminate(SEV_TERM_SET_GEN, GHCB_SEV_ES_GEN_REQ);
+}
+
+static void enforce_vmpl0(void)
+{
+ u64 attrs;
+ int err;
+
+ /*
+ * RMPADJUST modifies RMP permissions of a lesser-privileged (numerically
+ * higher) privilege level. Here, clear the VMPL1 permission mask of the
+ * GHCB page. If the guest is not running at VMPL0, this will fail.
+ *
+ * If the guest is running at VMPL0, it will succeed. Even if that operation
+ * modifies permission bits, it is still ok to do so currently because Linux
+ * SNP guests are supported only on VMPL0 so VMPL1 or higher permission masks
+ * changing is a don't-care.
+ */
+ attrs = 1;
+ if (rmpadjust((unsigned long)&boot_ghcb_page, RMP_PG_SIZE_4K, attrs))
+ sev_es_terminate(SEV_TERM_SET_LINUX, GHCB_TERM_NOT_VMPL0);
+}
+
+/*
+ * SNP_FEATURES_IMPL_REQ is the mask of SNP features that will need
+ * guest side implementation for proper functioning of the guest. If any
+ * of these features are enabled in the hypervisor but are lacking guest
+ * side implementation, the behavior of the guest will be undefined. The
+ * guest could fail in non-obvious way making it difficult to debug.
+ *
+ * As the behavior of reserved feature bits is unknown to be on the
+ * safe side add them to the required features mask.
+ */
+#define SNP_FEATURES_IMPL_REQ (MSR_AMD64_SNP_VTOM | \
+ MSR_AMD64_SNP_REFLECT_VC | \
+ MSR_AMD64_SNP_RESTRICTED_INJ | \
+ MSR_AMD64_SNP_ALT_INJ | \
+ MSR_AMD64_SNP_DEBUG_SWAP | \
+ MSR_AMD64_SNP_VMPL_SSS | \
+ MSR_AMD64_SNP_SECURE_TSC | \
+ MSR_AMD64_SNP_VMGEXIT_PARAM | \
+ MSR_AMD64_SNP_VMSA_REG_PROTECTION | \
+ MSR_AMD64_SNP_RESERVED_BIT13 | \
+ MSR_AMD64_SNP_RESERVED_BIT15 | \
+ MSR_AMD64_SNP_RESERVED_MASK)
+
+/*
+ * SNP_FEATURES_PRESENT is the mask of SNP features that are implemented
+ * by the guest kernel. As and when a new feature is implemented in the
+ * guest kernel, a corresponding bit should be added to the mask.
+ */
+#define SNP_FEATURES_PRESENT (0)
+
+void snp_check_features(void)
+{
+ u64 unsupported;
+
+ if (!(sev_status & MSR_AMD64_SEV_SNP_ENABLED))
+ return;
+
+ /*
+ * Terminate the boot if hypervisor has enabled any feature lacking
+ * guest side implementation. Pass on the unsupported features mask through
+ * EXIT_INFO_2 of the GHCB protocol so that those features can be reported
+ * as part of the guest boot failure.
+ */
+ unsupported = sev_status & SNP_FEATURES_IMPL_REQ & ~SNP_FEATURES_PRESENT;
+ if (unsupported) {
+ if (ghcb_version < 2 || (!boot_ghcb && !early_setup_ghcb()))
+ sev_es_terminate(SEV_TERM_SET_GEN, GHCB_SNP_UNSUPPORTED);
+
+ sev_es_ghcb_terminate(boot_ghcb, SEV_TERM_SET_GEN,
+ GHCB_SNP_UNSUPPORTED, unsupported);
+ }
+}
+
+void sev_enable(struct boot_params *bp)
+{
+ unsigned int eax, ebx, ecx, edx;
+ struct msr m;
+ bool snp;
+
+ /*
+ * bp->cc_blob_address should only be set by boot/compressed kernel.
+ * Initialize it to 0 to ensure that uninitialized values from
+ * buggy bootloaders aren't propagated.
+ */
+ if (bp)
+ bp->cc_blob_address = 0;
+
+ /*
+ * Setup/preliminary detection of SNP. This will be sanity-checked
+ * against CPUID/MSR values later.
+ */
+ snp = snp_init(bp);
+
+ /* Check for the SME/SEV support leaf */
+ eax = 0x80000000;
+ ecx = 0;
+ native_cpuid(&eax, &ebx, &ecx, &edx);
+ if (eax < 0x8000001f)
+ return;
+
+ /*
+ * Check for the SME/SEV feature:
+ * CPUID Fn8000_001F[EAX]
+ * - Bit 0 - Secure Memory Encryption support
+ * - Bit 1 - Secure Encrypted Virtualization support
+ * CPUID Fn8000_001F[EBX]
+ * - Bits 5:0 - Pagetable bit position used to indicate encryption
+ */
+ eax = 0x8000001f;
+ ecx = 0;
+ native_cpuid(&eax, &ebx, &ecx, &edx);
+ /* Check whether SEV is supported */
+ if (!(eax & BIT(1))) {
+ if (snp)
+ error("SEV-SNP support indicated by CC blob, but not CPUID.");
+ return;
+ }
+
+ /* Set the SME mask if this is an SEV guest. */
+ boot_rdmsr(MSR_AMD64_SEV, &m);
+ sev_status = m.q;
+ if (!(sev_status & MSR_AMD64_SEV_ENABLED))
+ return;
+
+ /* Negotiate the GHCB protocol version. */
+ if (sev_status & MSR_AMD64_SEV_ES_ENABLED) {
+ if (!sev_es_negotiate_protocol())
+ sev_es_terminate(SEV_TERM_SET_GEN, GHCB_SEV_ES_PROT_UNSUPPORTED);
+ }
+
+ /*
+ * SNP is supported in v2 of the GHCB spec which mandates support for HV
+ * features.
+ */
+ if (sev_status & MSR_AMD64_SEV_SNP_ENABLED) {
+ if (!(get_hv_features() & GHCB_HV_FT_SNP))
+ sev_es_terminate(SEV_TERM_SET_GEN, GHCB_SNP_UNSUPPORTED);
+
+ enforce_vmpl0();
+ }
+
+ if (snp && !(sev_status & MSR_AMD64_SEV_SNP_ENABLED))
+ error("SEV-SNP supported indicated by CC blob, but not SEV status MSR.");
+
+ sme_me_mask = BIT_ULL(ebx & 0x3f);
+}
+
+/* Search for Confidential Computing blob in the EFI config table. */
+static struct cc_blob_sev_info *find_cc_blob_efi(struct boot_params *bp)
+{
+ unsigned long cfg_table_pa;
+ unsigned int cfg_table_len;
+ int ret;
+
+ ret = efi_get_conf_table(bp, &cfg_table_pa, &cfg_table_len);
+ if (ret)
+ return NULL;
+
+ return (struct cc_blob_sev_info *)efi_find_vendor_table(bp, cfg_table_pa,
+ cfg_table_len,
+ EFI_CC_BLOB_GUID);
+}
+
+/*
+ * Initial set up of SNP relies on information provided by the
+ * Confidential Computing blob, which can be passed to the boot kernel
+ * by firmware/bootloader in the following ways:
+ *
+ * - via an entry in the EFI config table
+ * - via a setup_data structure, as defined by the Linux Boot Protocol
+ *
+ * Scan for the blob in that order.
+ */
+static struct cc_blob_sev_info *find_cc_blob(struct boot_params *bp)
+{
+ struct cc_blob_sev_info *cc_info;
+
+ cc_info = find_cc_blob_efi(bp);
+ if (cc_info)
+ goto found_cc_info;
+
+ cc_info = find_cc_blob_setup_data(bp);
+ if (!cc_info)
+ return NULL;
+
+found_cc_info:
+ if (cc_info->magic != CC_BLOB_SEV_HDR_MAGIC)
+ sev_es_terminate(SEV_TERM_SET_GEN, GHCB_SNP_UNSUPPORTED);
+
+ return cc_info;
+}
+
+/*
+ * Indicate SNP based on presence of SNP-specific CC blob. Subsequent checks
+ * will verify the SNP CPUID/MSR bits.
+ */
+bool snp_init(struct boot_params *bp)
+{
+ struct cc_blob_sev_info *cc_info;
+
+ if (!bp)
+ return false;
+
+ cc_info = find_cc_blob(bp);
+ if (!cc_info)
+ return false;
+
+ /*
+ * If a SNP-specific Confidential Computing blob is present, then
+ * firmware/bootloader have indicated SNP support. Verifying this
+ * involves CPUID checks which will be more reliable if the SNP
+ * CPUID table is used. See comments over snp_setup_cpuid_table() for
+ * more details.
+ */
+ setup_cpuid_table(cc_info);
+
+ /*
+ * Pass run-time kernel a pointer to CC info via boot_params so EFI
+ * config table doesn't need to be searched again during early startup
+ * phase.
+ */
+ bp->cc_blob_address = (u32)(unsigned long)cc_info;
+
+ return true;
+}
+
+void sev_prep_identity_maps(unsigned long top_level_pgt)
+{
+ /*
+ * The Confidential Computing blob is used very early in uncompressed
+ * kernel to find the in-memory CPUID table to handle CPUID
+ * instructions. Make sure an identity-mapping exists so it can be
+ * accessed after switchover.
+ */
+ if (sev_snp_enabled()) {
+ unsigned long cc_info_pa = boot_params->cc_blob_address;
+ struct cc_blob_sev_info *cc_info;
+
+ kernel_add_identity_map(cc_info_pa, cc_info_pa + sizeof(*cc_info));
+
+ cc_info = (struct cc_blob_sev_info *)cc_info_pa;
+ kernel_add_identity_map(cc_info->cpuid_phys, cc_info->cpuid_phys + cc_info->cpuid_len);
+ }
+
+ sev_verify_cbit(top_level_pgt);
+}
diff --git a/arch/x86/boot/compressed/string.c b/arch/x86/boot/compressed/string.c
index 19b3e693cd72..81fc1eaa3229 100644
--- a/arch/x86/boot/compressed/string.c
+++ b/arch/x86/boot/compressed/string.c
@@ -1,2 +1,81 @@
-#include "misc.h"
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * This provides an optimized implementation of memcpy, and a simplified
+ * implementation of memset and memmove. These are used here because the
+ * standard kernel runtime versions are not yet available and we don't
+ * trust the gcc built-in implementations as they may do unexpected things
+ * (e.g. FPU ops) in the minimal decompression stub execution environment.
+ */
+#include "error.h"
+
#include "../string.c"
+
+#ifdef CONFIG_X86_32
+static void *____memcpy(void *dest, const void *src, size_t n)
+{
+ int d0, d1, d2;
+ asm volatile(
+ "rep ; movsl\n\t"
+ "movl %4,%%ecx\n\t"
+ "rep ; movsb\n\t"
+ : "=&c" (d0), "=&D" (d1), "=&S" (d2)
+ : "0" (n >> 2), "g" (n & 3), "1" (dest), "2" (src)
+ : "memory");
+
+ return dest;
+}
+#else
+static void *____memcpy(void *dest, const void *src, size_t n)
+{
+ long d0, d1, d2;
+ asm volatile(
+ "rep ; movsq\n\t"
+ "movq %4,%%rcx\n\t"
+ "rep ; movsb\n\t"
+ : "=&c" (d0), "=&D" (d1), "=&S" (d2)
+ : "0" (n >> 3), "g" (n & 7), "1" (dest), "2" (src)
+ : "memory");
+
+ return dest;
+}
+#endif
+
+void *memset(void *s, int c, size_t n)
+{
+ int i;
+ char *ss = s;
+
+ for (i = 0; i < n; i++)
+ ss[i] = c;
+ return s;
+}
+
+void *memmove(void *dest, const void *src, size_t n)
+{
+ unsigned char *d = dest;
+ const unsigned char *s = src;
+
+ if (d <= s || d - s >= n)
+ return ____memcpy(dest, src, n);
+
+ while (n-- > 0)
+ d[n] = s[n];
+
+ return dest;
+}
+
+/* Detect and warn about potential overlaps, but handle them with memmove. */
+void *memcpy(void *dest, const void *src, size_t n)
+{
+ if (dest > src && dest - src < n) {
+ warn("Avoiding potentially unsafe overlapping memcpy()!");
+ return memmove(dest, src, n);
+ }
+ return ____memcpy(dest, src, n);
+}
+
+#ifdef CONFIG_KASAN
+extern void *__memset(void *s, int c, size_t n) __alias(memset);
+extern void *__memmove(void *dest, const void *src, size_t n) __alias(memmove);
+extern void *__memcpy(void *dest, const void *src, size_t n) __alias(memcpy);
+#endif
diff --git a/arch/x86/boot/compressed/tdcall.S b/arch/x86/boot/compressed/tdcall.S
new file mode 100644
index 000000000000..46d0495e0d3a
--- /dev/null
+++ b/arch/x86/boot/compressed/tdcall.S
@@ -0,0 +1,3 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include "../../coco/tdx/tdcall.S"
diff --git a/arch/x86/boot/compressed/tdx.c b/arch/x86/boot/compressed/tdx.c
new file mode 100644
index 000000000000..2d81d3cc72a1
--- /dev/null
+++ b/arch/x86/boot/compressed/tdx.c
@@ -0,0 +1,77 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include "../cpuflags.h"
+#include "../string.h"
+#include "../io.h"
+#include "error.h"
+
+#include <vdso/limits.h>
+#include <uapi/asm/vmx.h>
+
+#include <asm/shared/tdx.h>
+
+/* Called from __tdx_hypercall() for unrecoverable failure */
+void __tdx_hypercall_failed(void)
+{
+ error("TDVMCALL failed. TDX module bug?");
+}
+
+static inline unsigned int tdx_io_in(int size, u16 port)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = TDX_HYPERCALL_STANDARD,
+ .r11 = EXIT_REASON_IO_INSTRUCTION,
+ .r12 = size,
+ .r13 = 0,
+ .r14 = port,
+ };
+
+ if (__tdx_hypercall_ret(&args))
+ return UINT_MAX;
+
+ return args.r11;
+}
+
+static inline void tdx_io_out(int size, u16 port, u32 value)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = TDX_HYPERCALL_STANDARD,
+ .r11 = EXIT_REASON_IO_INSTRUCTION,
+ .r12 = size,
+ .r13 = 1,
+ .r14 = port,
+ .r15 = value,
+ };
+
+ __tdx_hypercall(&args);
+}
+
+static inline u8 tdx_inb(u16 port)
+{
+ return tdx_io_in(1, port);
+}
+
+static inline void tdx_outb(u8 value, u16 port)
+{
+ tdx_io_out(1, port, value);
+}
+
+static inline void tdx_outw(u16 value, u16 port)
+{
+ tdx_io_out(2, port, value);
+}
+
+void early_tdx_detect(void)
+{
+ u32 eax, sig[3];
+
+ cpuid_count(TDX_CPUID_LEAF_ID, 0, &eax, &sig[0], &sig[2], &sig[1]);
+
+ if (memcmp(TDX_IDENT, sig, sizeof(sig)))
+ return;
+
+ /* Use hypercalls instead of I/O instructions */
+ pio_ops.f_inb = tdx_inb;
+ pio_ops.f_outb = tdx_outb;
+ pio_ops.f_outw = tdx_outw;
+}
diff --git a/arch/x86/boot/compressed/tdx.h b/arch/x86/boot/compressed/tdx.h
new file mode 100644
index 000000000000..9055482cd35c
--- /dev/null
+++ b/arch/x86/boot/compressed/tdx.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BOOT_COMPRESSED_TDX_H
+#define BOOT_COMPRESSED_TDX_H
+
+#include <linux/types.h>
+
+#ifdef CONFIG_INTEL_TDX_GUEST
+void early_tdx_detect(void);
+#else
+static inline void early_tdx_detect(void) { };
+#endif
+
+#endif /* BOOT_COMPRESSED_TDX_H */
diff --git a/arch/x86/boot/compressed/vmlinux.lds.S b/arch/x86/boot/compressed/vmlinux.lds.S
index 34d047c98284..b22f34b8684a 100644
--- a/arch/x86/boot/compressed/vmlinux.lds.S
+++ b/arch/x86/boot/compressed/vmlinux.lds.S
@@ -1,6 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#include <asm-generic/vmlinux.lds.h>
-OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT, CONFIG_OUTPUT_FORMAT)
+OUTPUT_FORMAT(CONFIG_OUTPUT_FORMAT)
#undef i386
@@ -33,6 +34,7 @@ SECTIONS
_text = .; /* Text */
*(.text)
*(.text.*)
+ *(.noinstr.text)
_etext = . ;
}
.rodata : {
@@ -41,16 +43,11 @@ SECTIONS
*(.rodata.*)
_erodata = . ;
}
- .got : {
- _got = .;
- KEEP(*(.got.plt))
- KEEP(*(.got))
- _egot = .;
- }
.data : {
_data = . ;
*(.data)
*(.data.*)
+ *(.bss.efistub)
_edata = . ;
}
. = ALIGN(L1_CACHE_BYTES);
@@ -70,5 +67,52 @@ SECTIONS
_epgtable = . ;
}
#endif
+ . = ALIGN(PAGE_SIZE); /* keep ZO size page aligned */
_end = .;
+
+ STABS_DEBUG
+ DWARF_DEBUG
+ ELF_DETAILS
+
+ DISCARDS
+ /DISCARD/ : {
+ *(.dynamic) *(.dynsym) *(.dynstr) *(.dynbss)
+ *(.hash) *(.gnu.hash)
+ *(.note.*)
+ }
+
+ .got.plt (INFO) : {
+ *(.got.plt)
+ }
+ ASSERT(SIZEOF(.got.plt) == 0 ||
+#ifdef CONFIG_X86_64
+ SIZEOF(.got.plt) == 0x18,
+#else
+ SIZEOF(.got.plt) == 0xc,
+#endif
+ "Unexpected GOT/PLT entries detected!")
+
+ /*
+ * Sections that should stay zero sized, which is safer to
+ * explicitly check instead of blindly discarding.
+ */
+ .got : {
+ *(.got)
+ }
+ ASSERT(SIZEOF(.got) == 0, "Unexpected GOT entries detected!")
+
+ .plt : {
+ *(.plt) *(.plt.*)
+ }
+ ASSERT(SIZEOF(.plt) == 0, "Unexpected run-time procedure linkages detected!")
+
+ .rel.dyn : {
+ *(.rel.*) *(.rel_*)
+ }
+ ASSERT(SIZEOF(.rel.dyn) == 0, "Unexpected run-time relocations (.rel) detected!")
+
+ .rela.dyn : {
+ *(.rela.*) *(.rela_*)
+ }
+ ASSERT(SIZEOF(.rela.dyn) == 0, "Unexpected run-time relocations (.rela) detected!")
}
diff --git a/arch/x86/boot/copy.S b/arch/x86/boot/copy.S
index 11f272c6f5e9..6afd05e819d2 100644
--- a/arch/x86/boot/copy.S
+++ b/arch/x86/boot/copy.S
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/* ----------------------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
#include <linux/linkage.h>
@@ -14,10 +12,10 @@
* Memory copy routines
*/
- .code16gcc
+ .code16
.text
-GLOBAL(memcpy)
+SYM_FUNC_START_NOALIGN(memcpy)
pushw %si
pushw %di
movw %ax, %di
@@ -30,10 +28,10 @@ GLOBAL(memcpy)
rep; movsb
popw %di
popw %si
- ret
-ENDPROC(memcpy)
+ retl
+SYM_FUNC_END(memcpy)
-GLOBAL(memset)
+SYM_FUNC_START_NOALIGN(memset)
pushw %di
movw %ax, %di
movzbl %dl, %eax
@@ -45,43 +43,23 @@ GLOBAL(memset)
andw $3, %cx
rep; stosb
popw %di
- ret
-ENDPROC(memset)
+ retl
+SYM_FUNC_END(memset)
-GLOBAL(copy_from_fs)
+SYM_FUNC_START_NOALIGN(copy_from_fs)
pushw %ds
pushw %fs
popw %ds
- call memcpy
+ calll memcpy
popw %ds
- ret
-ENDPROC(copy_from_fs)
+ retl
+SYM_FUNC_END(copy_from_fs)
-GLOBAL(copy_to_fs)
+SYM_FUNC_START_NOALIGN(copy_to_fs)
pushw %es
pushw %fs
popw %es
- call memcpy
- popw %es
- ret
-ENDPROC(copy_to_fs)
-
-#if 0 /* Not currently used, but can be enabled as needed */
-GLOBAL(copy_from_gs)
- pushw %ds
- pushw %gs
- popw %ds
- call memcpy
- popw %ds
- ret
-ENDPROC(copy_from_gs)
-
-GLOBAL(copy_to_gs)
- pushw %es
- pushw %gs
- popw %es
- call memcpy
+ calll memcpy
popw %es
- ret
-ENDPROC(copy_to_gs)
-#endif
+ retl
+SYM_FUNC_END(copy_to_fs)
diff --git a/arch/x86/boot/cpu.c b/arch/x86/boot/cpu.c
index 6ec6bb6e9957..0bbf4f3707d2 100644
--- a/arch/x86/boot/cpu.c
+++ b/arch/x86/boot/cpu.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007-2008 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -16,7 +14,9 @@
*/
#include "boot.h"
+#ifdef CONFIG_X86_FEATURE_NAMES
#include "cpustr.h"
+#endif
static char *cpu_name(int level)
{
@@ -32,11 +32,48 @@ static char *cpu_name(int level)
}
}
+static void show_cap_strs(u32 *err_flags)
+{
+ int i, j;
+#ifdef CONFIG_X86_FEATURE_NAMES
+ const unsigned char *msg_strs = (const unsigned char *)x86_cap_strs;
+ for (i = 0; i < NCAPINTS; i++) {
+ u32 e = err_flags[i];
+ for (j = 0; j < 32; j++) {
+ if (msg_strs[0] < i ||
+ (msg_strs[0] == i && msg_strs[1] < j)) {
+ /* Skip to the next string */
+ msg_strs += 2;
+ while (*msg_strs++)
+ ;
+ }
+ if (e & 1) {
+ if (msg_strs[0] == i &&
+ msg_strs[1] == j &&
+ msg_strs[2])
+ printf("%s ", msg_strs+2);
+ else
+ printf("%d:%d ", i, j);
+ }
+ e >>= 1;
+ }
+ }
+#else
+ for (i = 0; i < NCAPINTS; i++) {
+ u32 e = err_flags[i];
+ for (j = 0; j < 32; j++) {
+ if (e & 1)
+ printf("%d:%d ", i, j);
+ e >>= 1;
+ }
+ }
+#endif
+}
+
int validate_cpu(void)
{
u32 *err_flags;
int cpu_level, req_level;
- const unsigned char *msg_strs;
check_cpu(&cpu_level, &req_level, &err_flags);
@@ -49,36 +86,13 @@ int validate_cpu(void)
}
if (err_flags) {
- int i, j;
puts("This kernel requires the following features "
"not present on the CPU:\n");
-
- msg_strs = (const unsigned char *)x86_cap_strs;
-
- for (i = 0; i < NCAPINTS; i++) {
- u32 e = err_flags[i];
-
- for (j = 0; j < 32; j++) {
- if (msg_strs[0] < i ||
- (msg_strs[0] == i && msg_strs[1] < j)) {
- /* Skip to the next string */
- msg_strs += 2;
- while (*msg_strs++)
- ;
- }
- if (e & 1) {
- if (msg_strs[0] == i &&
- msg_strs[1] == j &&
- msg_strs[2])
- printf("%s ", msg_strs+2);
- else
- printf("%d:%d ", i, j);
- }
- e >>= 1;
- }
- }
+ show_cap_strs(err_flags);
putchar('\n');
return -1;
+ } else if (check_knl_erratum()) {
+ return -1;
} else {
return 0;
}
diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c
index 4d3ff037201f..fed8d13ce252 100644
--- a/arch/x86/boot/cpucheck.c
+++ b/arch/x86/boot/cpucheck.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -24,12 +22,13 @@
# include "boot.h"
#endif
#include <linux/types.h>
+#include <asm/intel-family.h>
#include <asm/processor-flags.h>
#include <asm/required-features.h>
#include <asm/msr-index.h>
+#include "string.h"
+#include "msr.h"
-struct cpu_features cpu;
-static u32 cpu_vendor[3];
static u32 err_flags[NCAPINTS];
static const int req_level = CONFIG_X86_MINIMUM_CPU_FAMILY;
@@ -44,6 +43,15 @@ static const u32 req_flags[NCAPINTS] =
0, /* REQUIRED_MASK5 not implemented in this file */
REQUIRED_MASK6,
0, /* REQUIRED_MASK7 not implemented in this file */
+ 0, /* REQUIRED_MASK8 not implemented in this file */
+ 0, /* REQUIRED_MASK9 not implemented in this file */
+ 0, /* REQUIRED_MASK10 not implemented in this file */
+ 0, /* REQUIRED_MASK11 not implemented in this file */
+ 0, /* REQUIRED_MASK12 not implemented in this file */
+ 0, /* REQUIRED_MASK13 not implemented in this file */
+ 0, /* REQUIRED_MASK14 not implemented in this file */
+ 0, /* REQUIRED_MASK15 not implemented in this file */
+ REQUIRED_MASK16,
};
#define A32(a, b, c, d) (((d) << 24)+((c) << 16)+((b) << 8)+(a))
@@ -69,92 +77,15 @@ static int is_transmeta(void)
cpu_vendor[2] == A32('M', 'x', '8', '6');
}
-static int has_fpu(void)
-{
- u16 fcw = -1, fsw = -1;
- u32 cr0;
-
- asm("movl %%cr0,%0" : "=r" (cr0));
- if (cr0 & (X86_CR0_EM|X86_CR0_TS)) {
- cr0 &= ~(X86_CR0_EM|X86_CR0_TS);
- asm volatile("movl %0,%%cr0" : : "r" (cr0));
- }
-
- asm volatile("fninit ; fnstsw %0 ; fnstcw %1"
- : "+m" (fsw), "+m" (fcw));
-
- return fsw == 0 && (fcw & 0x103f) == 0x003f;
-}
-
-static int has_eflag(u32 mask)
-{
- u32 f0, f1;
-
- asm("pushfl ; "
- "pushfl ; "
- "popl %0 ; "
- "movl %0,%1 ; "
- "xorl %2,%1 ; "
- "pushl %1 ; "
- "popfl ; "
- "pushfl ; "
- "popl %1 ; "
- "popfl"
- : "=&r" (f0), "=&r" (f1)
- : "ri" (mask));
-
- return !!((f0^f1) & mask);
-}
-
-static void get_flags(void)
+static int is_intel(void)
{
- u32 max_intel_level, max_amd_level;
- u32 tfms;
-
- if (has_fpu())
- set_bit(X86_FEATURE_FPU, cpu.flags);
-
- if (has_eflag(X86_EFLAGS_ID)) {
- asm("cpuid"
- : "=a" (max_intel_level),
- "=b" (cpu_vendor[0]),
- "=d" (cpu_vendor[1]),
- "=c" (cpu_vendor[2])
- : "a" (0));
-
- if (max_intel_level >= 0x00000001 &&
- max_intel_level <= 0x0000ffff) {
- asm("cpuid"
- : "=a" (tfms),
- "=c" (cpu.flags[4]),
- "=d" (cpu.flags[0])
- : "a" (0x00000001)
- : "ebx");
- cpu.level = (tfms >> 8) & 15;
- cpu.model = (tfms >> 4) & 15;
- if (cpu.level >= 6)
- cpu.model += ((tfms >> 16) & 0xf) << 4;
- }
-
- asm("cpuid"
- : "=a" (max_amd_level)
- : "a" (0x80000000)
- : "ebx", "ecx", "edx");
-
- if (max_amd_level >= 0x80000001 &&
- max_amd_level <= 0x8000ffff) {
- u32 eax = 0x80000001;
- asm("cpuid"
- : "+a" (eax),
- "=c" (cpu.flags[6]),
- "=d" (cpu.flags[1])
- : : "ebx");
- }
- }
+ return cpu_vendor[0] == A32('G', 'e', 'n', 'u') &&
+ cpu_vendor[1] == A32('i', 'n', 'e', 'I') &&
+ cpu_vendor[2] == A32('n', 't', 'e', 'l');
}
/* Returns a bitmask of which words we have error bits in */
-static int check_flags(void)
+static int check_cpuflags(void)
{
u32 err;
int i;
@@ -181,14 +112,14 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
{
int err;
- memset(&cpu.flags, 0, sizeof cpu.flags);
+ memset(&cpu.flags, 0, sizeof(cpu.flags));
cpu.level = 3;
if (has_eflag(X86_EFLAGS_AC))
cpu.level = 4;
- get_flags();
- err = check_flags();
+ get_cpuflags();
+ err = check_cpuflags();
if (test_bit(X86_FEATURE_LM, cpu.flags))
cpu.level = 64;
@@ -200,46 +131,60 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
/* If this is an AMD and we're only missing SSE+SSE2, try to
turn them on */
- u32 ecx = MSR_K7_HWCR;
- u32 eax, edx;
+ struct msr m;
- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
- eax &= ~(1 << 15);
- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+ boot_rdmsr(MSR_K7_HWCR, &m);
+ m.l &= ~(1 << 15);
+ boot_wrmsr(MSR_K7_HWCR, &m);
- get_flags(); /* Make sure it really did something */
- err = check_flags();
+ get_cpuflags(); /* Make sure it really did something */
+ err = check_cpuflags();
} else if (err == 0x01 &&
!(err_flags[0] & ~(1 << X86_FEATURE_CX8)) &&
is_centaur() && cpu.model >= 6) {
/* If this is a VIA C3, we might have to enable CX8
explicitly */
- u32 ecx = MSR_VIA_FCR;
- u32 eax, edx;
+ struct msr m;
- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
- eax |= (1<<1)|(1<<7);
- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+ boot_rdmsr(MSR_VIA_FCR, &m);
+ m.l |= (1 << 1) | (1 << 7);
+ boot_wrmsr(MSR_VIA_FCR, &m);
set_bit(X86_FEATURE_CX8, cpu.flags);
- err = check_flags();
+ err = check_cpuflags();
} else if (err == 0x01 && is_transmeta()) {
/* Transmeta might have masked feature bits in word 0 */
- u32 ecx = 0x80860004;
- u32 eax, edx;
+ struct msr m, m_tmp;
u32 level = 1;
- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx));
- asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx));
+ boot_rdmsr(0x80860004, &m);
+ m_tmp = m;
+ m_tmp.l = ~0;
+ boot_wrmsr(0x80860004, &m_tmp);
asm("cpuid"
: "+a" (level), "=d" (cpu.flags[0])
: : "ecx", "ebx");
- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx));
+ boot_wrmsr(0x80860004, &m);
- err = check_flags();
+ err = check_cpuflags();
+ } else if (err == 0x01 &&
+ !(err_flags[0] & ~(1 << X86_FEATURE_PAE)) &&
+ is_intel() && cpu.level == 6 &&
+ (cpu.model == 9 || cpu.model == 13)) {
+ /* PAE is disabled on this Pentium M but can be forced */
+ if (cmdline_find_option_bool("forcepae")) {
+ puts("WARNING: Forcing PAE in CPU flags\n");
+ set_bit(X86_FEATURE_PAE, cpu.flags);
+ err = check_cpuflags();
+ }
+ else {
+ puts("WARNING: PAE disabled. Use parameter 'forcepae' to enable at your own risk!\n");
+ }
}
+ if (!err)
+ err = check_knl_erratum();
if (err_flags_ptr)
*err_flags_ptr = err ? err_flags : NULL;
@@ -250,3 +195,33 @@ int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr)
return (cpu.level < req_level || err) ? -1 : 0;
}
+
+int check_knl_erratum(void)
+{
+ /*
+ * First check for the affected model/family:
+ */
+ if (!is_intel() ||
+ cpu.family != 6 ||
+ cpu.model != INTEL_FAM6_XEON_PHI_KNL)
+ return 0;
+
+ /*
+ * This erratum affects the Accessed/Dirty bits, and can
+ * cause stray bits to be set in !Present PTEs. We have
+ * enough bits in our 64-bit PTEs (which we have on real
+ * 64-bit mode or PAE) to avoid using these troublesome
+ * bits. But, we do not have enough space in our 32-bit
+ * PTEs. So, refuse to run on 32-bit non-PAE kernels.
+ */
+ if (IS_ENABLED(CONFIG_X86_64) || IS_ENABLED(CONFIG_X86_PAE))
+ return 0;
+
+ puts("This 32-bit kernel can not run on this Xeon Phi x200\n"
+ "processor due to a processor erratum. Use a 64-bit\n"
+ "kernel, or enable PAE in this 32-bit kernel.\n\n");
+
+ return -1;
+}
+
+
diff --git a/arch/x86/boot/cpuflags.c b/arch/x86/boot/cpuflags.c
new file mode 100644
index 000000000000..d75237ba7ce9
--- /dev/null
+++ b/arch/x86/boot/cpuflags.c
@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/types.h>
+#include "bitops.h"
+
+#include <asm/processor-flags.h>
+#include <asm/required-features.h>
+#include <asm/msr-index.h>
+#include "cpuflags.h"
+
+struct cpu_features cpu;
+u32 cpu_vendor[3];
+
+static bool loaded_flags;
+
+static int has_fpu(void)
+{
+ u16 fcw = -1, fsw = -1;
+ unsigned long cr0;
+
+ asm volatile("mov %%cr0,%0" : "=r" (cr0));
+ if (cr0 & (X86_CR0_EM|X86_CR0_TS)) {
+ cr0 &= ~(X86_CR0_EM|X86_CR0_TS);
+ asm volatile("mov %0,%%cr0" : : "r" (cr0));
+ }
+
+ asm volatile("fninit ; fnstsw %0 ; fnstcw %1"
+ : "+m" (fsw), "+m" (fcw));
+
+ return fsw == 0 && (fcw & 0x103f) == 0x003f;
+}
+
+/*
+ * For building the 16-bit code we want to explicitly specify 32-bit
+ * push/pop operations, rather than just saying 'pushf' or 'popf' and
+ * letting the compiler choose. But this is also included from the
+ * compressed/ directory where it may be 64-bit code, and thus needs
+ * to be 'pushfq' or 'popfq' in that case.
+ */
+#ifdef __x86_64__
+#define PUSHF "pushfq"
+#define POPF "popfq"
+#else
+#define PUSHF "pushfl"
+#define POPF "popfl"
+#endif
+
+int has_eflag(unsigned long mask)
+{
+ unsigned long f0, f1;
+
+ asm volatile(PUSHF " \n\t"
+ PUSHF " \n\t"
+ "pop %0 \n\t"
+ "mov %0,%1 \n\t"
+ "xor %2,%1 \n\t"
+ "push %1 \n\t"
+ POPF " \n\t"
+ PUSHF " \n\t"
+ "pop %1 \n\t"
+ POPF
+ : "=&r" (f0), "=&r" (f1)
+ : "ri" (mask));
+
+ return !!((f0^f1) & mask);
+}
+
+void cpuid_count(u32 id, u32 count, u32 *a, u32 *b, u32 *c, u32 *d)
+{
+ asm volatile("cpuid"
+ : "=a" (*a), "=b" (*b), "=c" (*c), "=d" (*d)
+ : "0" (id), "2" (count)
+ );
+}
+
+#define cpuid(id, a, b, c, d) cpuid_count(id, 0, a, b, c, d)
+
+void get_cpuflags(void)
+{
+ u32 max_intel_level, max_amd_level;
+ u32 tfms;
+ u32 ignored;
+
+ if (loaded_flags)
+ return;
+ loaded_flags = true;
+
+ if (has_fpu())
+ set_bit(X86_FEATURE_FPU, cpu.flags);
+
+ if (has_eflag(X86_EFLAGS_ID)) {
+ cpuid(0x0, &max_intel_level, &cpu_vendor[0], &cpu_vendor[2],
+ &cpu_vendor[1]);
+
+ if (max_intel_level >= 0x00000001 &&
+ max_intel_level <= 0x0000ffff) {
+ cpuid(0x1, &tfms, &ignored, &cpu.flags[4],
+ &cpu.flags[0]);
+ cpu.level = (tfms >> 8) & 15;
+ cpu.family = cpu.level;
+ cpu.model = (tfms >> 4) & 15;
+ if (cpu.level >= 6)
+ cpu.model += ((tfms >> 16) & 0xf) << 4;
+ }
+
+ if (max_intel_level >= 0x00000007) {
+ cpuid_count(0x00000007, 0, &ignored, &ignored,
+ &cpu.flags[16], &ignored);
+ }
+
+ cpuid(0x80000000, &max_amd_level, &ignored, &ignored,
+ &ignored);
+
+ if (max_amd_level >= 0x80000001 &&
+ max_amd_level <= 0x8000ffff) {
+ cpuid(0x80000001, &ignored, &ignored, &cpu.flags[6],
+ &cpu.flags[1]);
+ }
+ }
+}
diff --git a/arch/x86/boot/cpuflags.h b/arch/x86/boot/cpuflags.h
new file mode 100644
index 000000000000..475b8fde90f7
--- /dev/null
+++ b/arch/x86/boot/cpuflags.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BOOT_CPUFLAGS_H
+#define BOOT_CPUFLAGS_H
+
+#include <asm/cpufeatures.h>
+#include <asm/processor-flags.h>
+
+struct cpu_features {
+ int level; /* Family, or 64 for x86-64 */
+ int family; /* Family, always */
+ int model;
+ u32 flags[NCAPINTS];
+};
+
+extern struct cpu_features cpu;
+extern u32 cpu_vendor[3];
+
+int has_eflag(unsigned long mask);
+void get_cpuflags(void);
+void cpuid_count(u32 id, u32 count, u32 *a, u32 *b, u32 *c, u32 *d);
+
+#endif
diff --git a/arch/x86/boot/ctype.h b/arch/x86/boot/ctype.h
index 25e13403193c..8f5ef2994b5e 100644
--- a/arch/x86/boot/ctype.h
+++ b/arch/x86/boot/ctype.h
@@ -1,6 +1,6 @@
-#ifndef BOOT_ISDIGIT_H
-
-#define BOOT_ISDIGIT_H
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BOOT_CTYPE_H
+#define BOOT_CTYPE_H
static inline int isdigit(int ch)
{
diff --git a/arch/x86/boot/early_serial_console.c b/arch/x86/boot/early_serial_console.c
index 5df2869c874b..023bf1c3de8b 100644
--- a/arch/x86/boot/early_serial_console.c
+++ b/arch/x86/boot/early_serial_console.c
@@ -1,9 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Serial port routines for use during early boot reporting. This code is
+ * included from both the compressed kernel and the regular kernel.
+ */
#include "boot.h"
#define DEFAULT_SERIAL_PORT 0x3f8 /* ttyS0 */
-#define XMTRDY 0x20
-
#define DLAB 0x80
#define TXR 0 /* Transmit register (WRITE) */
@@ -47,7 +50,7 @@ static void parse_earlyprintk(void)
int pos = 0;
int port = 0;
- if (cmdline_find_option("earlyprintk", arg, sizeof arg) > 0) {
+ if (cmdline_find_option("earlyprintk", arg, sizeof(arg)) > 0) {
char *e;
if (!strncmp(arg, "serial", 6)) {
@@ -74,8 +77,8 @@ static void parse_earlyprintk(void)
static const int bases[] = { 0x3f8, 0x2f8 };
int idx = 0;
- if (!strncmp(arg + pos, "ttyS", 4))
- pos += 4;
+ /* += strlen("ttyS"); */
+ pos += 4;
if (arg[pos++] == '1')
idx = 1;
@@ -121,7 +124,7 @@ static void parse_console_uart8250(void)
* console=uart8250,io,0x3f8,115200n8
* need to make sure it is last one console !
*/
- if (cmdline_find_option("console", optstr, sizeof optstr) <= 0)
+ if (cmdline_find_option("console", optstr, sizeof(optstr)) <= 0)
return;
options = optstr;
diff --git a/arch/x86/boot/edd.c b/arch/x86/boot/edd.c
index c501a5b466f8..1fb4bc70cee9 100644
--- a/arch/x86/boot/edd.c
+++ b/arch/x86/boot/edd.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -15,6 +13,7 @@
#include "boot.h"
#include <linux/edd.h>
+#include "string.h"
#if defined(CONFIG_EDD) || defined(CONFIG_EDD_MODULE)
@@ -75,7 +74,7 @@ static int get_edd_info(u8 devno, struct edd_info *ei)
{
struct biosregs ireg, oreg;
- memset(ei, 0, sizeof *ei);
+ memset(ei, 0, sizeof(*ei));
/* Check Extensions Present */
@@ -132,7 +131,7 @@ void query_edd(void)
struct edd_info ei, *edp;
u32 *mbrptr;
- if (cmdline_find_option("edd", eddarg, sizeof eddarg) > 0) {
+ if (cmdline_find_option("edd", eddarg, sizeof(eddarg)) > 0) {
if (!strcmp(eddarg, "skipmbr") || !strcmp(eddarg, "skip")) {
do_edd = 1;
do_mbr = 0;
@@ -165,7 +164,7 @@ void query_edd(void)
*/
if (!get_edd_info(devno, &ei)
&& boot_params.eddbuf_entries < EDDMAXNR) {
- memcpy(edp, &ei, sizeof ei);
+ memcpy(edp, &ei, sizeof(ei));
edp++;
boot_params.eddbuf_entries++;
}
diff --git a/arch/x86/boot/genimage.sh b/arch/x86/boot/genimage.sh
new file mode 100644
index 000000000000..c9299aeb7333
--- /dev/null
+++ b/arch/x86/boot/genimage.sh
@@ -0,0 +1,272 @@
+#!/bin/bash
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License. See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 2017 by Changbin Du <changbin.du@intel.com>
+#
+# Adapted from code in arch/x86/boot/Makefile by H. Peter Anvin and others
+#
+# "make fdimage/fdimage144/fdimage288/hdimage/isoimage"
+# script for x86 architecture
+#
+# Arguments:
+# $1 - fdimage format
+# $2 - target image file
+# $3 - kernel bzImage file
+# $4 - mtools configuration file
+# $5 - kernel cmdline
+# $6+ - initrd image file(s)
+#
+# This script requires:
+# bash
+# syslinux
+# mtools (for fdimage* and hdimage)
+# edk2/OVMF (for hdimage)
+#
+# Otherwise try to stick to POSIX shell commands...
+#
+
+# Use "make V=1" to debug this script
+case "${KBUILD_VERBOSE}" in
+*1*)
+ set -x
+ ;;
+esac
+
+# Exit the top-level shell with an error
+topshell=$$
+trap 'exit 1' USR1
+die() {
+ echo "" 1>&2
+ echo " *** $*" 1>&2
+ echo "" 1>&2
+ kill -USR1 $topshell
+}
+
+# Verify the existence and readability of a file
+verify() {
+ if [ ! -f "$1" -o ! -r "$1" ]; then
+ die "Missing file: $1"
+ fi
+}
+
+diskfmt="$1"
+FIMAGE="$2"
+FBZIMAGE="$3"
+MTOOLSRC="$4"
+KCMDLINE="$5"
+shift 5 # Remaining arguments = initrd files
+
+export MTOOLSRC
+
+# common options for dd
+dd='dd iflag=fullblock'
+
+# Make sure the files actually exist
+verify "$FBZIMAGE"
+
+declare -a FDINITRDS
+irdpfx=' initrd='
+initrdopts_syslinux=''
+initrdopts_efi=''
+for f in "$@"; do
+ if [ -f "$f" -a -r "$f" ]; then
+ FDINITRDS=("${FDINITRDS[@]}" "$f")
+ fname="$(basename "$f")"
+ initrdopts_syslinux="${initrdopts_syslinux}${irdpfx}${fname}"
+ irdpfx=,
+ initrdopts_efi="${initrdopts_efi} initrd=${fname}"
+ fi
+done
+
+# Read a $3-byte littleendian unsigned value at offset $2 from file $1
+le() {
+ local n=0
+ local m=1
+ for b in $(od -A n -v -j $2 -N $3 -t u1 "$1"); do
+ n=$((n + b*m))
+ m=$((m * 256))
+ done
+ echo $n
+}
+
+# Get the EFI architecture name such that boot{name}.efi is the default
+# boot file name. Returns false with no output if the file is not an
+# EFI image or otherwise unknown.
+efiarch() {
+ [ -f "$1" ] || return
+ [ $(le "$1" 0 2) -eq 23117 ] || return # MZ magic
+ peoffs=$(le "$1" 60 4) # PE header offset
+ [ $peoffs -ge 64 ] || return
+ [ $(le "$1" $peoffs 4) -eq 17744 ] || return # PE magic
+ case $(le "$1" $((peoffs+4+20)) 2) in # PE type
+ 267) ;; # PE32
+ 523) ;; # PE32+
+ *) return 1 ;; # Invalid
+ esac
+ [ $(le "$1" $((peoffs+4+20+68)) 2) -eq 10 ] || return # EFI app
+ case $(le "$1" $((peoffs+4)) 2) in # Machine type
+ 332) echo i386 ;;
+ 450) echo arm ;;
+ 512) echo ia64 ;;
+ 20530) echo riscv32 ;;
+ 20580) echo riscv64 ;;
+ 20776) echo riscv128 ;;
+ 34404) echo x64 ;;
+ 43620) echo aa64 ;;
+ esac
+}
+
+# Get the combined sizes in bytes of the files given, counting sparse
+# files as full length, and padding each file to cluster size
+cluster=16384
+filesizes() {
+ local t=0
+ local s
+ for s in $(ls -lnL "$@" 2>/dev/null | awk '/^-/{ print $5; }'); do
+ t=$((t + ((s+cluster-1)/cluster)*cluster))
+ done
+ echo $t
+}
+
+# Expand directory names which should be in /usr/share into a list
+# of possible alternatives
+sharedirs() {
+ local dir file
+ for dir in /usr/share /usr/lib64 /usr/lib; do
+ for file; do
+ echo "$dir/$file"
+ echo "$dir/${file^^}"
+ done
+ done
+}
+efidirs() {
+ local dir file
+ for dir in /usr/share /boot /usr/lib64 /usr/lib; do
+ for file; do
+ echo "$dir/$file"
+ echo "$dir/${file^^}"
+ done
+ done
+}
+
+findsyslinux() {
+ local f="$(find -L $(sharedirs syslinux isolinux) \
+ -name "$1" -readable -type f -print -quit 2>/dev/null)"
+ if [ ! -f "$f" ]; then
+ die "Need a $1 file, please install syslinux/isolinux."
+ fi
+ echo "$f"
+ return 0
+}
+
+findovmf() {
+ local arch="$1"
+ shift
+ local -a names=(-false)
+ local name f
+ for name; do
+ names=("${names[@]}" -or -iname "$name")
+ done
+ for f in $(find -L $(efidirs edk2 ovmf) \
+ \( "${names[@]}" \) -readable -type f \
+ -print 2>/dev/null); do
+ if [ "$(efiarch "$f")" = "$arch" ]; then
+ echo "$f"
+ return 0
+ fi
+ done
+ die "Need a $1 file for $arch, please install EDK2/OVMF."
+}
+
+do_mcopy() {
+ if [ ${#FDINITRDS[@]} -gt 0 ]; then
+ mcopy "${FDINITRDS[@]}" "$1"
+ fi
+ if [ -n "$efishell" ]; then
+ mmd "$1"EFI "$1"EFI/Boot
+ mcopy "$efishell" "$1"EFI/Boot/boot${kefiarch}.efi
+ fi
+ if [ -n "$kefiarch" ]; then
+ echo linux "$KCMDLINE$initrdopts_efi" | \
+ mcopy - "$1"startup.nsh
+ fi
+ echo default linux "$KCMDLINE$initrdopts_syslinux" | \
+ mcopy - "$1"syslinux.cfg
+ mcopy "$FBZIMAGE" "$1"linux
+}
+
+genbzdisk() {
+ verify "$MTOOLSRC"
+ mformat -v 'LINUX_BOOT' a:
+ syslinux "$FIMAGE"
+ do_mcopy a:
+}
+
+genfdimage144() {
+ verify "$MTOOLSRC"
+ $dd if=/dev/zero of="$FIMAGE" bs=1024 count=1440 2>/dev/null
+ mformat -v 'LINUX_BOOT' v:
+ syslinux "$FIMAGE"
+ do_mcopy v:
+}
+
+genfdimage288() {
+ verify "$MTOOLSRC"
+ $dd if=/dev/zero of="$FIMAGE" bs=1024 count=2880 2>/dev/null
+ mformat -v 'LINUX_BOOT' w:
+ syslinux "$FIMAGE"
+ do_mcopy w:
+}
+
+genhdimage() {
+ verify "$MTOOLSRC"
+ mbr="$(findsyslinux mbr.bin)"
+ kefiarch="$(efiarch "$FBZIMAGE")"
+ if [ -n "$kefiarch" ]; then
+ # The efishell provides command line handling
+ efishell="$(findovmf $kefiarch shell.efi shell${kefiarch}.efi)"
+ ptype='-T 0xef' # EFI system partition, no GPT
+ fi
+ sizes=$(filesizes "$FBZIMAGE" "${FDINITRDS[@]}" "$efishell")
+ # Allow 1% + 2 MiB for filesystem and partition table overhead,
+ # syslinux, and config files; this is probably excessive...
+ megs=$(((sizes + sizes/100 + 2*1024*1024 - 1)/(1024*1024)))
+ $dd if=/dev/zero of="$FIMAGE" bs=$((1024*1024)) count=$megs 2>/dev/null
+ mpartition -I -c -s 32 -h 64 $ptype -b 64 -a p:
+ $dd if="$mbr" of="$FIMAGE" bs=440 count=1 conv=notrunc 2>/dev/null
+ mformat -v 'LINUX_BOOT' -s 32 -h 64 -c $((cluster/512)) -t $megs h:
+ syslinux --offset $((64*512)) "$FIMAGE"
+ do_mcopy h:
+}
+
+geniso() {
+ tmp_dir="$(dirname "$FIMAGE")/isoimage"
+ rm -rf "$tmp_dir"
+ mkdir "$tmp_dir"
+ isolinux=$(findsyslinux isolinux.bin)
+ ldlinux=$(findsyslinux ldlinux.c32)
+ cp "$isolinux" "$ldlinux" "$tmp_dir"
+ cp "$FBZIMAGE" "$tmp_dir"/linux
+ echo default linux "$KCMDLINE" > "$tmp_dir"/isolinux.cfg
+ cp "${FDINITRDS[@]}" "$tmp_dir"/
+ genisoimage -J -r -appid 'LINUX_BOOT' -input-charset=utf-8 \
+ -quiet -o "$FIMAGE" -b isolinux.bin \
+ -c boot.cat -no-emul-boot -boot-load-size 4 \
+ -boot-info-table "$tmp_dir"
+ isohybrid "$FIMAGE" 2>/dev/null || true
+ rm -rf "$tmp_dir"
+}
+
+rm -f "$FIMAGE"
+
+case "$diskfmt" in
+ bzdisk) genbzdisk;;
+ fdimage144) genfdimage144;;
+ fdimage288) genfdimage288;;
+ hdimage) genhdimage;;
+ isoimage) geniso;;
+ *) die "Unknown image format: $diskfmt";;
+esac
diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S
index 93e689f4bd86..b04ca8e2b213 100644
--- a/arch/x86/boot/header.S
+++ b/arch/x86/boot/header.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* header.S
*
@@ -14,13 +15,12 @@
* hex while segment addresses are written as segment:offset.
*
*/
-
+#include <linux/pe.h>
#include <asm/segment.h>
-#include <generated/utsrelease.h>
#include <asm/boot.h>
-#include <asm/e820.h>
#include <asm/page_types.h>
#include <asm/setup.h>
+#include <asm/bootparam.h>
#include "boot.h"
#include "voffset.h"
#include "zoffset.h"
@@ -32,10 +32,6 @@ SYSSEG = 0x1000 /* historical load address >> 4 */
#define SVGA_MODE ASK_VGA
#endif
-#ifndef RAMDISK
-#define RAMDISK 0
-#endif
-
#ifndef ROOT_RDONLY
#define ROOT_RDONLY 1
#endif
@@ -45,6 +41,10 @@ SYSSEG = 0x1000 /* historical load address >> 4 */
.global bootsect_start
bootsect_start:
+#ifdef CONFIG_EFI_STUB
+ # "MZ", MS-DOS header
+ .word MZ_MAGIC
+#endif
# Normalize the start address
ljmp $BOOTSEG, $start2
@@ -79,19 +79,211 @@ bs_die:
# invoke the BIOS reset code...
ljmp $0xf000,$0xfff0
+#ifdef CONFIG_EFI_STUB
+ .org 0x38
+ #
+ # Offset to the PE header.
+ #
+ .long LINUX_PE_MAGIC
+ .long pe_header
+#endif /* CONFIG_EFI_STUB */
+
.section ".bsdata", "a"
bugger_off_msg:
- .ascii "Direct booting from floppy is no longer supported.\r\n"
- .ascii "Please use a boot loader program instead.\r\n"
+ .ascii "Use a boot loader.\r\n"
.ascii "\n"
- .ascii "Remove disk and press any key to reboot . . .\r\n"
+ .ascii "Remove disk and press any key to reboot...\r\n"
+ .byte 0
+
+#ifdef CONFIG_EFI_STUB
+pe_header:
+ .long PE_MAGIC
+
+coff_header:
+#ifdef CONFIG_X86_32
+ .set image_file_add_flags, IMAGE_FILE_32BIT_MACHINE
+ .set pe_opt_magic, PE_OPT_MAGIC_PE32
+ .word IMAGE_FILE_MACHINE_I386
+#else
+ .set image_file_add_flags, 0
+ .set pe_opt_magic, PE_OPT_MAGIC_PE32PLUS
+ .word IMAGE_FILE_MACHINE_AMD64
+#endif
+ .word section_count # nr_sections
+ .long 0 # TimeDateStamp
+ .long 0 # PointerToSymbolTable
+ .long 1 # NumberOfSymbols
+ .word section_table - optional_header # SizeOfOptionalHeader
+ .word IMAGE_FILE_EXECUTABLE_IMAGE | \
+ image_file_add_flags | \
+ IMAGE_FILE_DEBUG_STRIPPED | \
+ IMAGE_FILE_LINE_NUMS_STRIPPED # Characteristics
+
+optional_header:
+ .word pe_opt_magic
+ .byte 0x02 # MajorLinkerVersion
+ .byte 0x14 # MinorLinkerVersion
+
+ # Filled in by build.c
+ .long 0 # SizeOfCode
+
+ .long 0 # SizeOfInitializedData
+ .long 0 # SizeOfUninitializedData
+
+ # Filled in by build.c
+ .long 0x0000 # AddressOfEntryPoint
+
+ .long 0x0200 # BaseOfCode
+#ifdef CONFIG_X86_32
+ .long 0 # data
+#endif
+
+extra_header_fields:
+ # PE specification requires ImageBase to be 64k aligned
+ .set image_base, (LOAD_PHYSICAL_ADDR + 0xffff) & ~0xffff
+#ifdef CONFIG_X86_32
+ .long image_base # ImageBase
+#else
+ .quad image_base # ImageBase
+#endif
+ .long 0x20 # SectionAlignment
+ .long 0x20 # FileAlignment
+ .word 0 # MajorOperatingSystemVersion
+ .word 0 # MinorOperatingSystemVersion
+ .word LINUX_EFISTUB_MAJOR_VERSION # MajorImageVersion
+ .word LINUX_EFISTUB_MINOR_VERSION # MinorImageVersion
+ .word 0 # MajorSubsystemVersion
+ .word 0 # MinorSubsystemVersion
+ .long 0 # Win32VersionValue
+
+ #
+ # The size of the bzImage is written in tools/build.c
+ #
+ .long 0 # SizeOfImage
+
+ .long 0x200 # SizeOfHeaders
+ .long 0 # CheckSum
+ .word IMAGE_SUBSYSTEM_EFI_APPLICATION # Subsystem (EFI application)
+#ifdef CONFIG_EFI_DXE_MEM_ATTRIBUTES
+ .word IMAGE_DLL_CHARACTERISTICS_NX_COMPAT # DllCharacteristics
+#else
+ .word 0 # DllCharacteristics
+#endif
+#ifdef CONFIG_X86_32
+ .long 0 # SizeOfStackReserve
+ .long 0 # SizeOfStackCommit
+ .long 0 # SizeOfHeapReserve
+ .long 0 # SizeOfHeapCommit
+#else
+ .quad 0 # SizeOfStackReserve
+ .quad 0 # SizeOfStackCommit
+ .quad 0 # SizeOfHeapReserve
+ .quad 0 # SizeOfHeapCommit
+#endif
+ .long 0 # LoaderFlags
+ .long (section_table - .) / 8 # NumberOfRvaAndSizes
+
+ .quad 0 # ExportTable
+ .quad 0 # ImportTable
+ .quad 0 # ResourceTable
+ .quad 0 # ExceptionTable
+ .quad 0 # CertificationTable
+ .quad 0 # BaseRelocationTable
+
+ # Section table
+section_table:
+ #
+ # The offset & size fields are filled in by build.c.
+ #
+ .ascii ".setup"
+ .byte 0
+ .byte 0
+ .long 0
+ .long 0x0 # startup_{32,64}
+ .long 0 # Size of initialized data
+ # on disk
+ .long 0x0 # startup_{32,64}
+ .long 0 # PointerToRelocations
+ .long 0 # PointerToLineNumbers
+ .word 0 # NumberOfRelocations
+ .word 0 # NumberOfLineNumbers
+ .long IMAGE_SCN_CNT_CODE | \
+ IMAGE_SCN_MEM_READ | \
+ IMAGE_SCN_MEM_EXECUTE | \
+ IMAGE_SCN_ALIGN_16BYTES # Characteristics
+
+ #
+ # The EFI application loader requires a relocation section
+ # because EFI applications must be relocatable. The .reloc
+ # offset & size fields are filled in by build.c.
+ #
+ .ascii ".reloc"
+ .byte 0
.byte 0
+ .long 0
+ .long 0
+ .long 0 # SizeOfRawData
+ .long 0 # PointerToRawData
+ .long 0 # PointerToRelocations
+ .long 0 # PointerToLineNumbers
+ .word 0 # NumberOfRelocations
+ .word 0 # NumberOfLineNumbers
+ .long IMAGE_SCN_CNT_INITIALIZED_DATA | \
+ IMAGE_SCN_MEM_READ | \
+ IMAGE_SCN_MEM_DISCARDABLE | \
+ IMAGE_SCN_ALIGN_1BYTES # Characteristics
+
+#ifdef CONFIG_EFI_MIXED
+ #
+ # The offset & size fields are filled in by build.c.
+ #
+ .asciz ".compat"
+ .long 0
+ .long 0x0
+ .long 0 # Size of initialized data
+ # on disk
+ .long 0x0
+ .long 0 # PointerToRelocations
+ .long 0 # PointerToLineNumbers
+ .word 0 # NumberOfRelocations
+ .word 0 # NumberOfLineNumbers
+ .long IMAGE_SCN_CNT_INITIALIZED_DATA | \
+ IMAGE_SCN_MEM_READ | \
+ IMAGE_SCN_MEM_DISCARDABLE | \
+ IMAGE_SCN_ALIGN_1BYTES # Characteristics
+#endif
+ #
+ # The offset & size fields are filled in by build.c.
+ #
+ .ascii ".text"
+ .byte 0
+ .byte 0
+ .byte 0
+ .long 0
+ .long 0x0 # startup_{32,64}
+ .long 0 # Size of initialized data
+ # on disk
+ .long 0x0 # startup_{32,64}
+ .long 0 # PointerToRelocations
+ .long 0 # PointerToLineNumbers
+ .word 0 # NumberOfRelocations
+ .word 0 # NumberOfLineNumbers
+ .long IMAGE_SCN_CNT_CODE | \
+ IMAGE_SCN_MEM_READ | \
+ IMAGE_SCN_MEM_EXECUTE | \
+ IMAGE_SCN_ALIGN_16BYTES # Characteristics
+
+ .set section_count, (. - section_table) / 40
+#endif /* CONFIG_EFI_STUB */
# Kernel attributes; used by setup. This is part 1 of the
# header, from the old boot sector.
.section ".header", "a"
+ .globl sentinel
+sentinel: .byte 0xff, 0xff /* Used to detect broken loaders */
+
.globl hdr
hdr:
setup_sects: .byte 0 /* Filled in by build.c */
@@ -116,7 +308,7 @@ _start:
# Part 2 of the header, from the old setup.S
.ascii "HdrS" # header signature
- .word 0x020a # header version number (>= 0x0105)
+ .word 0x020f # header version number (>= 0x0105)
# or else old loadlin-1.5 will fail)
.globl realmode_swtch
realmode_swtch: .word 0, 0 # default_switch, SETUPSEG
@@ -129,18 +321,12 @@ start_sys_seg: .word SYSSEG # obsolete and meaningless, but just
type_of_loader: .byte 0 # 0 means ancient bootloader, newer
# bootloaders know to change this.
- # See Documentation/i386/boot.txt for
+ # See Documentation/arch/x86/boot.rst for
# assigned ids
# flags, unused bits must be zero (RFU) bit within loadflags
loadflags:
-LOADED_HIGH = 1 # If set, the kernel is loaded high
-CAN_USE_HEAP = 0x80 # If set, the loader also has set
- # heap_end_ptr to tell how much
- # space behind setup.S can be used for
- # heap purposes.
- # Only the loader knows what is free
- .byte LOADED_HIGH
+ .byte LOADED_HIGH # The kernel is to be loaded high
setup_move_size: .word 0x8000 # size to move, when setup is not
# loaded at 0x90000. We will move setup
@@ -189,7 +375,7 @@ cmd_line_ptr: .long 0 # (Header version 0x0202 or later)
# can be located anywhere in
# low memory 0x10000 or higher.
-ramdisk_max: .long 0x7fffffff
+initrd_addr_max: .long 0x7fffffff
# (Header version 0x0203 or later)
# The highest safe address for
# the contents of an initrd
@@ -206,7 +392,52 @@ relocatable_kernel: .byte 1
relocatable_kernel: .byte 0
#endif
min_alignment: .byte MIN_KERNEL_ALIGN_LG2 # minimum alignment
-pad3: .word 0
+
+xloadflags:
+#ifdef CONFIG_X86_64
+# define XLF0 XLF_KERNEL_64 /* 64-bit kernel */
+#else
+# define XLF0 0
+#endif
+
+#if defined(CONFIG_RELOCATABLE) && defined(CONFIG_X86_64)
+ /* kernel/boot_param/ramdisk could be loaded above 4g */
+# define XLF1 XLF_CAN_BE_LOADED_ABOVE_4G
+#else
+# define XLF1 0
+#endif
+
+#ifdef CONFIG_EFI_HANDOVER_PROTOCOL
+# ifdef CONFIG_EFI_MIXED
+# define XLF23 (XLF_EFI_HANDOVER_32|XLF_EFI_HANDOVER_64)
+# else
+# ifdef CONFIG_X86_64
+# define XLF23 XLF_EFI_HANDOVER_64 /* 64-bit EFI handover ok */
+# else
+# define XLF23 XLF_EFI_HANDOVER_32 /* 32-bit EFI handover ok */
+# endif
+# endif
+#else
+# define XLF23 0
+#endif
+
+#if defined(CONFIG_X86_64) && defined(CONFIG_EFI) && defined(CONFIG_KEXEC_CORE)
+# define XLF4 XLF_EFI_KEXEC
+#else
+# define XLF4 0
+#endif
+
+#ifdef CONFIG_X86_64
+#ifdef CONFIG_X86_5LEVEL
+#define XLF56 (XLF_5LEVEL|XLF_5LEVEL_ENABLED)
+#else
+#define XLF56 XLF_5LEVEL
+#endif
+#else
+#define XLF56 0
+#endif
+
+ .word XLF0 | XLF1 | XLF23 | XLF4 | XLF56
cmdline_size: .long COMMAND_LINE_SIZE-1 #length of the command line,
#added with boot protocol
@@ -226,26 +457,136 @@ setup_data: .quad 0 # 64-bit physical pointer to
pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr
-#define ZO_INIT_SIZE (ZO__end - ZO_startup_32 + ZO_z_extract_offset)
+#
+# Getting to provably safe in-place decompression is hard. Worst case
+# behaviours need to be analyzed. Here let's take the decompression of
+# a gzip-compressed kernel as example, to illustrate it:
+#
+# The file layout of gzip compressed kernel is:
+#
+# magic[2]
+# method[1]
+# flags[1]
+# timestamp[4]
+# extraflags[1]
+# os[1]
+# compressed data blocks[N]
+# crc[4] orig_len[4]
+#
+# ... resulting in +18 bytes overhead of uncompressed data.
+#
+# (For more information, please refer to RFC 1951 and RFC 1952.)
+#
+# Files divided into blocks
+# 1 bit (last block flag)
+# 2 bits (block type)
+#
+# 1 block occurs every 32K -1 bytes or when there 50% compression
+# has been achieved. The smallest block type encoding is always used.
+#
+# stored:
+# 32 bits length in bytes.
+#
+# fixed:
+# magic fixed tree.
+# symbols.
+#
+# dynamic:
+# dynamic tree encoding.
+# symbols.
+#
+#
+# The buffer for decompression in place is the length of the uncompressed
+# data, plus a small amount extra to keep the algorithm safe. The
+# compressed data is placed at the end of the buffer. The output pointer
+# is placed at the start of the buffer and the input pointer is placed
+# where the compressed data starts. Problems will occur when the output
+# pointer overruns the input pointer.
+#
+# The output pointer can only overrun the input pointer if the input
+# pointer is moving faster than the output pointer. A condition only
+# triggered by data whose compressed form is larger than the uncompressed
+# form.
+#
+# The worst case at the block level is a growth of the compressed data
+# of 5 bytes per 32767 bytes.
+#
+# The worst case internal to a compressed block is very hard to figure.
+# The worst case can at least be bounded by having one bit that represents
+# 32764 bytes and then all of the rest of the bytes representing the very
+# very last byte.
+#
+# All of which is enough to compute an amount of extra data that is required
+# to be safe. To avoid problems at the block level allocating 5 extra bytes
+# per 32767 bytes of data is sufficient. To avoid problems internal to a
+# block adding an extra 32767 bytes (the worst case uncompressed block size)
+# is sufficient, to ensure that in the worst case the decompressed data for
+# block will stop the byte before the compressed data for a block begins.
+# To avoid problems with the compressed data's meta information an extra 18
+# bytes are needed. Leading to the formula:
+#
+# extra_bytes = (uncompressed_size >> 12) + 32768 + 18
+#
+# Adding 8 bytes per 32K is a bit excessive but much easier to calculate.
+# Adding 32768 instead of 32767 just makes for round numbers.
+#
+# Above analysis is for decompressing gzip compressed kernel only. Up to
+# now 6 different decompressor are supported all together. And among them
+# xz stores data in chunks and has maximum chunk of 64K. Hence safety
+# margin should be updated to cover all decompressors so that we don't
+# need to deal with each of them separately. Please check
+# the description in lib/decompressor_xxx.c for specific information.
+#
+# extra_bytes = (uncompressed_size >> 12) + 65536 + 128
+#
+# LZ4 is even worse: data that cannot be further compressed grows by 0.4%,
+# or one byte per 256 bytes. OTOH, we can safely get rid of the +128 as
+# the size-dependent part now grows so fast.
+#
+# extra_bytes = (uncompressed_size >> 8) + 65536
+#
+# ZSTD compressed data grows by at most 3 bytes per 128K, and only has a 22
+# byte fixed overhead but has a maximum block size of 128K, so it needs a
+# larger margin.
+#
+# extra_bytes = (uncompressed_size >> 8) + 131072
+
+#define ZO_z_extra_bytes ((ZO_z_output_len >> 8) + 131072)
+#if ZO_z_output_len > ZO_z_input_len
+# define ZO_z_extract_offset (ZO_z_output_len + ZO_z_extra_bytes - \
+ ZO_z_input_len)
+#else
+# define ZO_z_extract_offset ZO_z_extra_bytes
+#endif
+
+/*
+ * The extract_offset has to be bigger than ZO head section. Otherwise when
+ * the head code is running to move ZO to the end of the buffer, it will
+ * overwrite the head code itself.
+ */
+#if (ZO__ehead - ZO_startup_32) > ZO_z_extract_offset
+# define ZO_z_min_extract_offset ((ZO__ehead - ZO_startup_32 + 4095) & ~4095)
+#else
+# define ZO_z_min_extract_offset ((ZO_z_extract_offset + 4095) & ~4095)
+#endif
+
+#define ZO_INIT_SIZE (ZO__end - ZO_startup_32 + ZO_z_min_extract_offset)
+
#define VO_INIT_SIZE (VO__end - VO__text)
#if ZO_INIT_SIZE > VO_INIT_SIZE
-#define INIT_SIZE ZO_INIT_SIZE
+# define INIT_SIZE ZO_INIT_SIZE
#else
-#define INIT_SIZE VO_INIT_SIZE
+# define INIT_SIZE VO_INIT_SIZE
#endif
+
init_size: .long INIT_SIZE # kernel initialization size
+handover_offset: .long 0 # Filled in by build.c
+kernel_info_offset: .long 0 # Filled in by build.c
# End of setup header #####################################################
.section ".entrytext", "ax"
start_of_setup:
-#ifdef SAFE_RESET_DISK_CONTROLLER
-# Reset the disk controller.
- movw $0x0000, %ax # Reset disk controller
- movb $0x80, %dl # All disks
- int $0x13
-#endif
-
# Force %es = %ds
movw %ds, %ax
movw %ax, %es
diff --git a/arch/x86/boot/install.sh b/arch/x86/boot/install.sh
index d13ec1c38640..0849f4b42745 100644..100755
--- a/arch/x86/boot/install.sh
+++ b/arch/x86/boot/install.sh
@@ -15,28 +15,6 @@
# $2 - kernel image file
# $3 - kernel map file
# $4 - default install path (blank if root directory)
-#
-
-verify () {
- if [ ! -f "$1" ]; then
- echo "" 1>&2
- echo " *** Missing file: $1" 1>&2
- echo ' *** You need to run "make" before "make install".' 1>&2
- echo "" 1>&2
- exit 1
- fi
-}
-
-# Make sure the files actually exist
-verify "$2"
-verify "$3"
-
-# User may have a custom install script
-
-if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
-if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
-
-# Default install - same as make zlilo
if [ -f $4/vmlinuz ]; then
mv $4/vmlinuz $4/vmlinuz.old
diff --git a/arch/x86/boot/io.h b/arch/x86/boot/io.h
new file mode 100644
index 000000000000..110880907f87
--- /dev/null
+++ b/arch/x86/boot/io.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BOOT_IO_H
+#define BOOT_IO_H
+
+#include <asm/shared/io.h>
+
+#undef inb
+#undef inw
+#undef inl
+#undef outb
+#undef outw
+#undef outl
+
+struct port_io_ops {
+ u8 (*f_inb)(u16 port);
+ void (*f_outb)(u8 v, u16 port);
+ void (*f_outw)(u16 v, u16 port);
+};
+
+extern struct port_io_ops pio_ops;
+
+/*
+ * Use the normal I/O instructions by default.
+ * TDX guests override these to use hypercalls.
+ */
+static inline void init_default_io_ops(void)
+{
+ pio_ops.f_inb = __inb;
+ pio_ops.f_outb = __outb;
+ pio_ops.f_outw = __outw;
+}
+
+/*
+ * Redirect port I/O operations via pio_ops callbacks.
+ * TDX guests override these callbacks with TDX-specific helpers.
+ */
+#define inb pio_ops.f_inb
+#define outb pio_ops.f_outb
+#define outw pio_ops.f_outw
+
+#endif
diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c
index 40358c8905be..c4ea5258ab55 100644
--- a/arch/x86/boot/main.c
+++ b/arch/x86/boot/main.c
@@ -1,22 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
* Main module for the real-mode kernel code
*/
+#include <linux/build_bug.h>
#include "boot.h"
+#include "string.h"
struct boot_params boot_params __attribute__((aligned(16)));
+struct port_io_ops pio_ops;
+
char *HEAP = _end;
char *heap_end = _end; /* Default end of heap = no heap */
@@ -33,10 +35,10 @@ static void copy_boot_params(void)
u16 cl_offset;
};
const struct old_cmdline * const oldcmd =
- (const struct old_cmdline *)OLD_CL_ADDRESS;
+ absolute_pointer(OLD_CL_ADDRESS);
- BUILD_BUG_ON(sizeof boot_params != 4096);
- memcpy(&boot_params.hdr, &hdr, sizeof hdr);
+ BUILD_BUG_ON(sizeof(boot_params) != 4096);
+ memcpy(&boot_params.hdr, &hdr, sizeof(hdr));
if (!boot_params.hdr.cmd_line_ptr &&
oldcmd->cl_magic == OLD_CL_MAGIC) {
@@ -57,14 +59,20 @@ static void copy_boot_params(void)
}
/*
- * Set the keyboard repeat rate to maximum. Unclear why this
+ * Query the keyboard lock status as given by the BIOS, and
+ * set the keyboard repeat rate to maximum. Unclear why the latter
* is done here; this might be possible to kill off as stale code.
*/
-static void keyboard_set_repeat(void)
+static void keyboard_init(void)
{
- struct biosregs ireg;
+ struct biosregs ireg, oreg;
initregs(&ireg);
- ireg.ax = 0x0305;
+
+ ireg.ah = 0x02; /* Get keyboard status */
+ intcall(0x16, &ireg, &oreg);
+ boot_params.kbd_status = oreg.al;
+
+ ireg.ax = 0x0305; /* Set keyboard repeat rate */
intcall(0x16, &ireg, NULL);
}
@@ -127,6 +135,8 @@ static void init_heap(void)
void main(void)
{
+ init_default_io_ops();
+
/* First, copy the boot header into the "zeropage" */
copy_boot_params();
@@ -151,11 +161,8 @@ void main(void)
/* Detect memory layout */
detect_memory();
- /* Set keyboard repeat rate (why?) */
- keyboard_set_repeat();
-
- /* Query MCA information */
- query_mca();
+ /* Set keyboard repeat rate (why?) and query the lock flags */
+ keyboard_init();
/* Query Intel SpeedStep (IST) information */
query_ist();
diff --git a/arch/x86/boot/mca.c b/arch/x86/boot/mca.c
deleted file mode 100644
index a95a531148ef..000000000000
--- a/arch/x86/boot/mca.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/* -*- linux-c -*- ------------------------------------------------------- *
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- * Copyright 2007 rPath, Inc. - All Rights Reserved
- * Copyright 2009 Intel Corporation; author H. Peter Anvin
- *
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
- * ----------------------------------------------------------------------- */
-
-/*
- * Get the MCA system description table
- */
-
-#include "boot.h"
-
-int query_mca(void)
-{
- struct biosregs ireg, oreg;
- u16 len;
-
- initregs(&ireg);
- ireg.ah = 0xc0;
- intcall(0x15, &ireg, &oreg);
-
- if (oreg.eflags & X86_EFLAGS_CF)
- return -1; /* No MCA present */
-
- set_fs(oreg.es);
- len = rdfs16(oreg.bx);
-
- if (len > sizeof(boot_params.sys_desc_table))
- len = sizeof(boot_params.sys_desc_table);
-
- copy_from_fs(&boot_params.sys_desc_table, oreg.bx, len);
- return 0;
-}
diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c
index cae3feb1035e..b0422b79debc 100644
--- a/arch/x86/boot/memory.c
+++ b/arch/x86/boot/memory.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -17,16 +15,16 @@
#define SMAP 0x534d4150 /* ASCII "SMAP" */
-static int detect_memory_e820(void)
+static void detect_memory_e820(void)
{
int count = 0;
struct biosregs ireg, oreg;
- struct e820entry *desc = boot_params.e820_map;
- static struct e820entry buf; /* static so it is zeroed */
+ struct boot_e820_entry *desc = boot_params.e820_table;
+ static struct boot_e820_entry buf; /* static so it is zeroed */
initregs(&ireg);
ireg.ax = 0xe820;
- ireg.cx = sizeof buf;
+ ireg.cx = sizeof(buf);
ireg.edx = SMAP;
ireg.di = (size_t)&buf;
@@ -66,12 +64,12 @@ static int detect_memory_e820(void)
*desc++ = buf;
count++;
- } while (ireg.ebx && count < ARRAY_SIZE(boot_params.e820_map));
+ } while (ireg.ebx && count < ARRAY_SIZE(boot_params.e820_table));
- return boot_params.e820_entries = count;
+ boot_params.e820_entries = count;
}
-static int detect_memory_e801(void)
+static void detect_memory_e801(void)
{
struct biosregs ireg, oreg;
@@ -80,7 +78,7 @@ static int detect_memory_e801(void)
intcall(0x15, &ireg, &oreg);
if (oreg.eflags & X86_EFLAGS_CF)
- return -1;
+ return;
/* Do we really need to do this? */
if (oreg.cx || oreg.dx) {
@@ -89,9 +87,9 @@ static int detect_memory_e801(void)
}
if (oreg.ax > 15*1024) {
- return -1; /* Bogus! */
+ return; /* Bogus! */
} else if (oreg.ax == 15*1024) {
- boot_params.alt_mem_k = (oreg.dx << 6) + oreg.ax;
+ boot_params.alt_mem_k = (oreg.bx << 6) + oreg.ax;
} else {
/*
* This ignores memory above 16MB if we have a memory
@@ -102,11 +100,9 @@ static int detect_memory_e801(void)
*/
boot_params.alt_mem_k = oreg.ax;
}
-
- return 0;
}
-static int detect_memory_88(void)
+static void detect_memory_88(void)
{
struct biosregs ireg, oreg;
@@ -115,22 +111,13 @@ static int detect_memory_88(void)
intcall(0x15, &ireg, &oreg);
boot_params.screen_info.ext_mem_k = oreg.ax;
-
- return -(oreg.eflags & X86_EFLAGS_CF); /* 0 or -1 */
}
-int detect_memory(void)
+void detect_memory(void)
{
- int err = -1;
-
- if (detect_memory_e820() > 0)
- err = 0;
-
- if (!detect_memory_e801())
- err = 0;
+ detect_memory_e820();
- if (!detect_memory_88())
- err = 0;
+ detect_memory_e801();
- return err;
+ detect_memory_88();
}
diff --git a/arch/x86/boot/mkcpustr.c b/arch/x86/boot/mkcpustr.c
index 919257f526f2..da0ccc5de538 100644
--- a/arch/x86/boot/mkcpustr.c
+++ b/arch/x86/boot/mkcpustr.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* ----------------------------------------------------------------------- *
*
* Copyright 2008 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2 or (at your
- * option) any later version; incorporated herein by reference.
- *
* ----------------------------------------------------------------------- */
/*
@@ -15,6 +12,10 @@
#include <stdio.h>
+#include "../include/asm/required-features.h"
+#include "../include/asm/disabled-features.h"
+#include "../include/asm/cpufeatures.h"
+#include "../include/asm/vmxfeatures.h"
#include "../kernel/cpu/capflags.c"
int main(void)
diff --git a/arch/x86/boot/msr.h b/arch/x86/boot/msr.h
new file mode 100644
index 000000000000..aed66f7ae199
--- /dev/null
+++ b/arch/x86/boot/msr.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Helpers/definitions related to MSR access.
+ */
+
+#ifndef BOOT_MSR_H
+#define BOOT_MSR_H
+
+#include <asm/shared/msr.h>
+
+/*
+ * The kernel proper already defines rdmsr()/wrmsr(), but they are not for the
+ * boot kernel since they rely on tracepoint/exception handling infrastructure
+ * that's not available here.
+ */
+static inline void boot_rdmsr(unsigned int reg, struct msr *m)
+{
+ asm volatile("rdmsr" : "=a" (m->l), "=d" (m->h) : "c" (reg));
+}
+
+static inline void boot_wrmsr(unsigned int reg, const struct msr *m)
+{
+ asm volatile("wrmsr" : : "c" (reg), "a"(m->l), "d" (m->h) : "memory");
+}
+
+#endif /* BOOT_MSR_H */
diff --git a/arch/x86/boot/mtools.conf.in b/arch/x86/boot/mtools.conf.in
index efd6d2490c1d..174c60508766 100644
--- a/arch/x86/boot/mtools.conf.in
+++ b/arch/x86/boot/mtools.conf.in
@@ -14,4 +14,8 @@ drive v:
drive w:
file="@OBJ@/fdimage" cylinders=80 heads=2 sectors=36 filter
-
+# Hard disk (h: for the filesystem, p: for format - old mtools bug?)
+drive h:
+ file="@OBJ@/hdimage" offset=32768 mformat_only
+drive p:
+ file="@OBJ@/hdimage" partition=1 mformat_only
diff --git a/arch/x86/boot/pm.c b/arch/x86/boot/pm.c
index 8062f8915250..40031a614712 100644
--- a/arch/x86/boot/pm.c
+++ b/arch/x86/boot/pm.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
diff --git a/arch/x86/boot/pmjump.S b/arch/x86/boot/pmjump.S
index 3e0edc6d2a20..cbec8bd0841f 100644
--- a/arch/x86/boot/pmjump.S
+++ b/arch/x86/boot/pmjump.S
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/* ----------------------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -23,7 +21,7 @@
/*
* void protected_mode_jump(u32 entrypoint, u32 bootparams);
*/
-GLOBAL(protected_mode_jump)
+SYM_FUNC_START_NOALIGN(protected_mode_jump)
movl %edx, %esi # Pointer to boot_params table
xorl %ebx, %ebx
@@ -42,13 +40,13 @@ GLOBAL(protected_mode_jump)
# Transition to 32-bit mode
.byte 0x66, 0xea # ljmpl opcode
-2: .long in_pm32 # offset
+2: .long .Lin_pm32 # offset
.word __BOOT_CS # segment
-ENDPROC(protected_mode_jump)
+SYM_FUNC_END(protected_mode_jump)
.code32
.section ".text32","ax"
-GLOBAL(in_pm32)
+SYM_FUNC_START_LOCAL_NOALIGN(.Lin_pm32)
# Set up data segments for flat 32-bit mode
movl %ecx, %ds
movl %ecx, %es
@@ -74,4 +72,4 @@ GLOBAL(in_pm32)
lldt %cx
jmpl *%eax # Jump to the 32-bit entrypoint
-ENDPROC(in_pm32)
+SYM_FUNC_END(.Lin_pm32)
diff --git a/arch/x86/boot/printf.c b/arch/x86/boot/printf.c
index cdac91ca55d3..1237beeb9540 100644
--- a/arch/x86/boot/printf.c
+++ b/arch/x86/boot/printf.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -55,7 +53,7 @@ static char *number(char *str, long num, int base, int size, int precision,
locase = (type & SMALL);
if (type & LEFT)
type &= ~ZEROPAD;
- if (base < 2 || base > 36)
+ if (base < 2 || base > 16)
return NULL;
c = (type & ZEROPAD) ? '0' : ' ';
sign = 0;
diff --git a/arch/x86/boot/regs.c b/arch/x86/boot/regs.c
index 958019b1cfa5..55de6b3092b8 100644
--- a/arch/x86/boot/regs.c
+++ b/arch/x86/boot/regs.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/* -----------------------------------------------------------------------
*
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2 or (at your
- * option) any later version; incorporated herein by reference.
- *
* ----------------------------------------------------------------------- */
/*
@@ -17,10 +14,11 @@
*/
#include "boot.h"
+#include "string.h"
void initregs(struct biosregs *reg)
{
- memset(reg, 0, sizeof *reg);
+ memset(reg, 0, sizeof(*reg));
reg->eflags |= X86_EFLAGS_CF;
reg->ds = ds();
reg->es = ds();
diff --git a/arch/x86/boot/setup.ld b/arch/x86/boot/setup.ld
index 03c0683636b6..49546c247ae2 100644
--- a/arch/x86/boot/setup.ld
+++ b/arch/x86/boot/setup.ld
@@ -3,7 +3,7 @@
*
* Linker script for the i386 setup code
*/
-OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
+OUTPUT_FORMAT("elf32-i386")
OUTPUT_ARCH(i386)
ENTRY(_start)
@@ -13,14 +13,14 @@ SECTIONS
.bstext : { *(.bstext) }
.bsdata : { *(.bsdata) }
- . = 497;
+ . = 495;
.header : { *(.header) }
.entrytext : { *(.entrytext) }
.inittext : { *(.inittext) }
.initdata : { *(.initdata) }
__end_init = .;
- .text : { *(.text) }
+ .text : { *(.text .text.*) }
.text32 : { *(.text32) }
. = ALIGN(16);
@@ -51,7 +51,9 @@ SECTIONS
. = ALIGN(16);
_end = .;
- /DISCARD/ : { *(.note*) }
+ /DISCARD/ : {
+ *(.note*)
+ }
/*
* The ASSERT() sink to . is intentional, for binutils 2.14 compatibility:
diff --git a/arch/x86/boot/string.c b/arch/x86/boot/string.c
index 3cbc4058dd26..1c8541ae3b3a 100644
--- a/arch/x86/boot/string.c
+++ b/arch/x86/boot/string.c
@@ -1,18 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
* Very basic string functions
*/
-#include "boot.h"
+#include <linux/types.h>
+#include <linux/compiler.h>
+#include <linux/errno.h>
+#include <linux/limits.h>
+#include <asm/asm.h>
+#include "ctype.h"
+#include "string.h"
+
+#define KSTRTOX_OVERFLOW (1U << 31)
+
+/*
+ * Undef these macros so that the functions that we provide
+ * here will have the correct names regardless of how string.h
+ * may have chosen to #define them.
+ */
+#undef memcpy
+#undef memset
+#undef memcmp
+
+int memcmp(const void *s1, const void *s2, size_t len)
+{
+ bool diff;
+ asm("repe; cmpsb" CC_SET(nz)
+ : CC_OUT(nz) (diff), "+D" (s1), "+S" (s2), "+c" (len));
+ return diff;
+}
+
+/*
+ * Clang may lower `memcmp == 0` to `bcmp == 0`.
+ */
+int bcmp(const void *s1, const void *s2, size_t len)
+{
+ return memcmp(s1, s2, len);
+}
int strcmp(const char *str1, const char *str2)
{
@@ -21,7 +52,7 @@ int strcmp(const char *str1, const char *str2)
int delta = 0;
while (*s1 || *s2) {
- delta = *s2 - *s1;
+ delta = *s1 - *s2;
if (delta)
return delta;
s1++;
@@ -86,7 +117,6 @@ static unsigned int simple_guess_base(const char *cp)
* @endp: A pointer to the end of the parsed string will be placed here
* @base: The number base to use
*/
-
unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int base)
{
unsigned long long result = 0;
@@ -111,3 +141,238 @@ unsigned long long simple_strtoull(const char *cp, char **endp, unsigned int bas
return result;
}
+
+long simple_strtol(const char *cp, char **endp, unsigned int base)
+{
+ if (*cp == '-')
+ return -simple_strtoull(cp + 1, endp, base);
+
+ return simple_strtoull(cp, endp, base);
+}
+
+/**
+ * strlen - Find the length of a string
+ * @s: The string to be sized
+ */
+size_t strlen(const char *s)
+{
+ const char *sc;
+
+ for (sc = s; *sc != '\0'; ++sc)
+ /* nothing */;
+ return sc - s;
+}
+
+/**
+ * strstr - Find the first substring in a %NUL terminated string
+ * @s1: The string to be searched
+ * @s2: The string to search for
+ */
+char *strstr(const char *s1, const char *s2)
+{
+ size_t l1, l2;
+
+ l2 = strlen(s2);
+ if (!l2)
+ return (char *)s1;
+ l1 = strlen(s1);
+ while (l1 >= l2) {
+ l1--;
+ if (!memcmp(s1, s2, l2))
+ return (char *)s1;
+ s1++;
+ }
+ return NULL;
+}
+
+/**
+ * strchr - Find the first occurrence of the character c in the string s.
+ * @s: the string to be searched
+ * @c: the character to search for
+ */
+char *strchr(const char *s, int c)
+{
+ while (*s != (char)c)
+ if (*s++ == '\0')
+ return NULL;
+ return (char *)s;
+}
+
+static inline u64 __div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
+{
+ union {
+ u64 v64;
+ u32 v32[2];
+ } d = { dividend };
+ u32 upper;
+
+ upper = d.v32[1];
+ d.v32[1] = 0;
+ if (upper >= divisor) {
+ d.v32[1] = upper / divisor;
+ upper %= divisor;
+ }
+ asm ("divl %2" : "=a" (d.v32[0]), "=d" (*remainder) :
+ "rm" (divisor), "0" (d.v32[0]), "1" (upper));
+ return d.v64;
+}
+
+static inline u64 __div_u64(u64 dividend, u32 divisor)
+{
+ u32 remainder;
+
+ return __div_u64_rem(dividend, divisor, &remainder);
+}
+
+static inline char _tolower(const char c)
+{
+ return c | 0x20;
+}
+
+static const char *_parse_integer_fixup_radix(const char *s, unsigned int *base)
+{
+ if (*base == 0) {
+ if (s[0] == '0') {
+ if (_tolower(s[1]) == 'x' && isxdigit(s[2]))
+ *base = 16;
+ else
+ *base = 8;
+ } else
+ *base = 10;
+ }
+ if (*base == 16 && s[0] == '0' && _tolower(s[1]) == 'x')
+ s += 2;
+ return s;
+}
+
+/*
+ * Convert non-negative integer string representation in explicitly given radix
+ * to an integer.
+ * Return number of characters consumed maybe or-ed with overflow bit.
+ * If overflow occurs, result integer (incorrect) is still returned.
+ *
+ * Don't you dare use this function.
+ */
+static unsigned int _parse_integer(const char *s,
+ unsigned int base,
+ unsigned long long *p)
+{
+ unsigned long long res;
+ unsigned int rv;
+
+ res = 0;
+ rv = 0;
+ while (1) {
+ unsigned int c = *s;
+ unsigned int lc = c | 0x20; /* don't tolower() this line */
+ unsigned int val;
+
+ if ('0' <= c && c <= '9')
+ val = c - '0';
+ else if ('a' <= lc && lc <= 'f')
+ val = lc - 'a' + 10;
+ else
+ break;
+
+ if (val >= base)
+ break;
+ /*
+ * Check for overflow only if we are within range of
+ * it in the max base we support (16)
+ */
+ if (unlikely(res & (~0ull << 60))) {
+ if (res > __div_u64(ULLONG_MAX - val, base))
+ rv |= KSTRTOX_OVERFLOW;
+ }
+ res = res * base + val;
+ rv++;
+ s++;
+ }
+ *p = res;
+ return rv;
+}
+
+static int _kstrtoull(const char *s, unsigned int base, unsigned long long *res)
+{
+ unsigned long long _res;
+ unsigned int rv;
+
+ s = _parse_integer_fixup_radix(s, &base);
+ rv = _parse_integer(s, base, &_res);
+ if (rv & KSTRTOX_OVERFLOW)
+ return -ERANGE;
+ if (rv == 0)
+ return -EINVAL;
+ s += rv;
+ if (*s == '\n')
+ s++;
+ if (*s)
+ return -EINVAL;
+ *res = _res;
+ return 0;
+}
+
+/**
+ * kstrtoull - convert a string to an unsigned long long
+ * @s: The start of the string. The string must be null-terminated, and may also
+ * include a single newline before its terminating null. The first character
+ * may also be a plus sign, but not a minus sign.
+ * @base: The number base to use. The maximum supported base is 16. If base is
+ * given as 0, then the base of the string is automatically detected with the
+ * conventional semantics - If it begins with 0x the number will be parsed as a
+ * hexadecimal (case insensitive), if it otherwise begins with 0, it will be
+ * parsed as an octal number. Otherwise it will be parsed as a decimal.
+ * @res: Where to write the result of the conversion on success.
+ *
+ * Returns 0 on success, -ERANGE on overflow and -EINVAL on parsing error.
+ * Used as a replacement for the obsolete simple_strtoull. Return code must
+ * be checked.
+ */
+int kstrtoull(const char *s, unsigned int base, unsigned long long *res)
+{
+ if (s[0] == '+')
+ s++;
+ return _kstrtoull(s, base, res);
+}
+
+static int _kstrtoul(const char *s, unsigned int base, unsigned long *res)
+{
+ unsigned long long tmp;
+ int rv;
+
+ rv = kstrtoull(s, base, &tmp);
+ if (rv < 0)
+ return rv;
+ if (tmp != (unsigned long)tmp)
+ return -ERANGE;
+ *res = tmp;
+ return 0;
+}
+
+/**
+ * boot_kstrtoul - convert a string to an unsigned long
+ * @s: The start of the string. The string must be null-terminated, and may also
+ * include a single newline before its terminating null. The first character
+ * may also be a plus sign, but not a minus sign.
+ * @base: The number base to use. The maximum supported base is 16. If base is
+ * given as 0, then the base of the string is automatically detected with the
+ * conventional semantics - If it begins with 0x the number will be parsed as a
+ * hexadecimal (case insensitive), if it otherwise begins with 0, it will be
+ * parsed as an octal number. Otherwise it will be parsed as a decimal.
+ * @res: Where to write the result of the conversion on success.
+ *
+ * Returns 0 on success, -ERANGE on overflow and -EINVAL on parsing error.
+ * Used as a replacement for the simple_strtoull.
+ */
+int boot_kstrtoul(const char *s, unsigned int base, unsigned long *res)
+{
+ /*
+ * We want to shortcut function call, but
+ * __builtin_types_compatible_p(unsigned long, unsigned long long) = 0.
+ */
+ if (sizeof(unsigned long) == sizeof(unsigned long long) &&
+ __alignof__(unsigned long) == __alignof__(unsigned long long))
+ return kstrtoull(s, base, (unsigned long long *)res);
+ else
+ return _kstrtoul(s, base, res);
+}
diff --git a/arch/x86/boot/string.h b/arch/x86/boot/string.h
new file mode 100644
index 000000000000..e5d2c6b8c2f1
--- /dev/null
+++ b/arch/x86/boot/string.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef BOOT_STRING_H
+#define BOOT_STRING_H
+
+/* Undef any of these macros coming from string_32.h. */
+#undef memcpy
+#undef memset
+#undef memcmp
+
+void *memcpy(void *dst, const void *src, size_t len);
+void *memmove(void *dst, const void *src, size_t len);
+void *memset(void *dst, int c, size_t len);
+int memcmp(const void *s1, const void *s2, size_t len);
+int bcmp(const void *s1, const void *s2, size_t len);
+
+/* Access builtin version by default. */
+#define memcpy(d,s,l) __builtin_memcpy(d,s,l)
+#define memset(d,c,l) __builtin_memset(d,c,l)
+#define memcmp __builtin_memcmp
+
+extern int strcmp(const char *str1, const char *str2);
+extern int strncmp(const char *cs, const char *ct, size_t count);
+extern size_t strlen(const char *s);
+extern char *strstr(const char *s1, const char *s2);
+extern char *strchr(const char *s, int c);
+extern size_t strnlen(const char *s, size_t maxlen);
+extern unsigned int atou(const char *s);
+extern unsigned long long simple_strtoull(const char *cp, char **endp,
+ unsigned int base);
+long simple_strtol(const char *cp, char **endp, unsigned int base);
+
+int kstrtoull(const char *s, unsigned int base, unsigned long long *res);
+int boot_kstrtoul(const char *s, unsigned int base, unsigned long *res);
+#endif /* BOOT_STRING_H */
diff --git a/arch/x86/boot/tools/.gitignore b/arch/x86/boot/tools/.gitignore
index 378eac25d311..ae91f4d0d78b 100644
--- a/arch/x86/boot/tools/.gitignore
+++ b/arch/x86/boot/tools/.gitignore
@@ -1 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
build
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c
index ee3a4ea923ac..bd247692b701 100644
--- a/arch/x86/boot/tools/build.c
+++ b/arch/x86/boot/tools/build.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright (C) 1997 Martin Mares
@@ -5,14 +6,15 @@
*/
/*
- * This file builds a disk-image from two different files:
+ * This file builds a disk-image from three different files:
*
* - setup: 8086 machine code, sets up system parm
* - system: 80386 code for actual system
+ * - zoffset.h: header with ZO_* defines
*
- * It does some checking that all files are of the correct type, and
- * just writes the result to stdout, removing headers and padding to
- * the right amount. It also writes some system data to stderr.
+ * It does some checking that all files are of the correct type, and writes
+ * the result to the specified destination, removing headers and padding to
+ * the right amount. It also writes some system data to stdout.
*/
/*
@@ -29,18 +31,18 @@
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
-#include <sys/sysmacros.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
-#include <asm/boot.h>
+#include <tools/le_byteshift.h>
typedef unsigned char u8;
typedef unsigned short u16;
-typedef unsigned long u32;
+typedef unsigned int u32;
#define DEFAULT_MAJOR_ROOT 0
#define DEFAULT_MINOR_ROOT 0
+#define DEFAULT_ROOT_DEV (DEFAULT_MAJOR_ROOT << 8 | DEFAULT_MINOR_ROOT)
/* Minimal number of setup sectors */
#define SETUP_SECT_MIN 5
@@ -48,7 +50,23 @@ typedef unsigned long u32;
/* This must be large enough to hold the entire setup */
u8 buf[SETUP_SECT_MAX*512];
-int is_big_kernel;
+
+#define PECOFF_RELOC_RESERVE 0x20
+
+#ifdef CONFIG_EFI_MIXED
+#define PECOFF_COMPAT_RESERVE 0x20
+#else
+#define PECOFF_COMPAT_RESERVE 0x0
+#endif
+
+static unsigned long efi32_stub_entry;
+static unsigned long efi64_stub_entry;
+static unsigned long efi_pe_entry;
+static unsigned long efi32_pe_entry;
+static unsigned long kernel_info;
+static unsigned long startup_64;
+static unsigned long _ehead;
+static unsigned long _end;
/*----------------------------------------------------------------------*/
@@ -124,53 +142,253 @@ static void die(const char * str, ...)
va_list args;
va_start(args, str);
vfprintf(stderr, str, args);
+ va_end(args);
fputc('\n', stderr);
exit(1);
}
static void usage(void)
{
- die("Usage: build setup system [rootdev] [> image]");
+ die("Usage: build setup system zoffset.h image");
+}
+
+#ifdef CONFIG_EFI_STUB
+
+static void update_pecoff_section_header_fields(char *section_name, u32 vma, u32 size, u32 datasz, u32 offset)
+{
+ unsigned int pe_header;
+ unsigned short num_sections;
+ u8 *section;
+
+ pe_header = get_unaligned_le32(&buf[0x3c]);
+ num_sections = get_unaligned_le16(&buf[pe_header + 6]);
+
+#ifdef CONFIG_X86_32
+ section = &buf[pe_header + 0xa8];
+#else
+ section = &buf[pe_header + 0xb8];
+#endif
+
+ while (num_sections > 0) {
+ if (strncmp((char*)section, section_name, 8) == 0) {
+ /* section header size field */
+ put_unaligned_le32(size, section + 0x8);
+
+ /* section header vma field */
+ put_unaligned_le32(vma, section + 0xc);
+
+ /* section header 'size of initialised data' field */
+ put_unaligned_le32(datasz, section + 0x10);
+
+ /* section header 'file offset' field */
+ put_unaligned_le32(offset, section + 0x14);
+
+ break;
+ }
+ section += 0x28;
+ num_sections--;
+ }
+}
+
+static void update_pecoff_section_header(char *section_name, u32 offset, u32 size)
+{
+ update_pecoff_section_header_fields(section_name, offset, size, size, offset);
+}
+
+static void update_pecoff_setup_and_reloc(unsigned int size)
+{
+ u32 setup_offset = 0x200;
+ u32 reloc_offset = size - PECOFF_RELOC_RESERVE - PECOFF_COMPAT_RESERVE;
+#ifdef CONFIG_EFI_MIXED
+ u32 compat_offset = reloc_offset + PECOFF_RELOC_RESERVE;
+#endif
+ u32 setup_size = reloc_offset - setup_offset;
+
+ update_pecoff_section_header(".setup", setup_offset, setup_size);
+ update_pecoff_section_header(".reloc", reloc_offset, PECOFF_RELOC_RESERVE);
+
+ /*
+ * Modify .reloc section contents with a single entry. The
+ * relocation is applied to offset 10 of the relocation section.
+ */
+ put_unaligned_le32(reloc_offset + 10, &buf[reloc_offset]);
+ put_unaligned_le32(10, &buf[reloc_offset + 4]);
+
+#ifdef CONFIG_EFI_MIXED
+ update_pecoff_section_header(".compat", compat_offset, PECOFF_COMPAT_RESERVE);
+
+ /*
+ * Put the IA-32 machine type (0x14c) and the associated entry point
+ * address in the .compat section, so loaders can figure out which other
+ * execution modes this image supports.
+ */
+ buf[compat_offset] = 0x1;
+ buf[compat_offset + 1] = 0x8;
+ put_unaligned_le16(0x14c, &buf[compat_offset + 2]);
+ put_unaligned_le32(efi32_pe_entry + size, &buf[compat_offset + 4]);
+#endif
+}
+
+static void update_pecoff_text(unsigned int text_start, unsigned int file_sz,
+ unsigned int init_sz)
+{
+ unsigned int pe_header;
+ unsigned int text_sz = file_sz - text_start;
+ unsigned int bss_sz = init_sz - file_sz;
+
+ pe_header = get_unaligned_le32(&buf[0x3c]);
+
+ /*
+ * The PE/COFF loader may load the image at an address which is
+ * misaligned with respect to the kernel_alignment field in the setup
+ * header.
+ *
+ * In order to avoid relocating the kernel to correct the misalignment,
+ * add slack to allow the buffer to be aligned within the declared size
+ * of the image.
+ */
+ bss_sz += CONFIG_PHYSICAL_ALIGN;
+ init_sz += CONFIG_PHYSICAL_ALIGN;
+
+ /*
+ * Size of code: Subtract the size of the first sector (512 bytes)
+ * which includes the header.
+ */
+ put_unaligned_le32(file_sz - 512 + bss_sz, &buf[pe_header + 0x1c]);
+
+ /* Size of image */
+ put_unaligned_le32(init_sz, &buf[pe_header + 0x50]);
+
+ /*
+ * Address of entry point for PE/COFF executable
+ */
+ put_unaligned_le32(text_start + efi_pe_entry, &buf[pe_header + 0x28]);
+
+ update_pecoff_section_header_fields(".text", text_start, text_sz + bss_sz,
+ text_sz, text_start);
+}
+
+static int reserve_pecoff_reloc_section(int c)
+{
+ /* Reserve 0x20 bytes for .reloc section */
+ memset(buf+c, 0, PECOFF_RELOC_RESERVE);
+ return PECOFF_RELOC_RESERVE;
+}
+
+static void efi_stub_defaults(void)
+{
+ /* Defaults for old kernel */
+#ifdef CONFIG_X86_32
+ efi_pe_entry = 0x10;
+#else
+ efi_pe_entry = 0x210;
+ startup_64 = 0x200;
+#endif
+}
+
+static void efi_stub_entry_update(void)
+{
+ unsigned long addr = efi32_stub_entry;
+
+#ifdef CONFIG_EFI_HANDOVER_PROTOCOL
+#ifdef CONFIG_X86_64
+ /* Yes, this is really how we defined it :( */
+ addr = efi64_stub_entry - 0x200;
+#endif
+
+#ifdef CONFIG_EFI_MIXED
+ if (efi32_stub_entry != addr)
+ die("32-bit and 64-bit EFI entry points do not match\n");
+#endif
+#endif
+ put_unaligned_le32(addr, &buf[0x264]);
+}
+
+#else
+
+static inline void update_pecoff_setup_and_reloc(unsigned int size) {}
+static inline void update_pecoff_text(unsigned int text_start,
+ unsigned int file_sz,
+ unsigned int init_sz) {}
+static inline void efi_stub_defaults(void) {}
+static inline void efi_stub_entry_update(void) {}
+
+static inline int reserve_pecoff_reloc_section(int c)
+{
+ return 0;
+}
+#endif /* CONFIG_EFI_STUB */
+
+static int reserve_pecoff_compat_section(int c)
+{
+ /* Reserve 0x20 bytes for .compat section */
+ memset(buf+c, 0, PECOFF_COMPAT_RESERVE);
+ return PECOFF_COMPAT_RESERVE;
+}
+
+/*
+ * Parse zoffset.h and find the entry points. We could just #include zoffset.h
+ * but that would mean tools/build would have to be rebuilt every time. It's
+ * not as if parsing it is hard...
+ */
+#define PARSE_ZOFS(p, sym) do { \
+ if (!strncmp(p, "#define ZO_" #sym " ", 11+sizeof(#sym))) \
+ sym = strtoul(p + 11 + sizeof(#sym), NULL, 16); \
+} while (0)
+
+static void parse_zoffset(char *fname)
+{
+ FILE *file;
+ char *p;
+ int c;
+
+ file = fopen(fname, "r");
+ if (!file)
+ die("Unable to open `%s': %m", fname);
+ c = fread(buf, 1, sizeof(buf) - 1, file);
+ if (ferror(file))
+ die("read-error on `zoffset.h'");
+ fclose(file);
+ buf[c] = 0;
+
+ p = (char *)buf;
+
+ while (p && *p) {
+ PARSE_ZOFS(p, efi32_stub_entry);
+ PARSE_ZOFS(p, efi64_stub_entry);
+ PARSE_ZOFS(p, efi_pe_entry);
+ PARSE_ZOFS(p, efi32_pe_entry);
+ PARSE_ZOFS(p, kernel_info);
+ PARSE_ZOFS(p, startup_64);
+ PARSE_ZOFS(p, _ehead);
+ PARSE_ZOFS(p, _end);
+
+ p = strchr(p, '\n');
+ while (p && (*p == '\r' || *p == '\n'))
+ p++;
+ }
}
int main(int argc, char ** argv)
{
- unsigned int i, sz, setup_sectors;
+ unsigned int i, sz, setup_sectors, init_sz;
int c;
u32 sys_size;
- u8 major_root, minor_root;
struct stat sb;
- FILE *file;
+ FILE *file, *dest;
int fd;
void *kernel;
u32 crc = 0xffffffffUL;
- if ((argc < 3) || (argc > 4))
+ efi_stub_defaults();
+
+ if (argc != 5)
usage();
- if (argc > 3) {
- if (!strcmp(argv[3], "CURRENT")) {
- if (stat("/", &sb)) {
- perror("/");
- die("Couldn't stat /");
- }
- major_root = major(sb.st_dev);
- minor_root = minor(sb.st_dev);
- } else if (strcmp(argv[3], "FLOPPY")) {
- if (stat(argv[3], &sb)) {
- perror(argv[3]);
- die("Couldn't stat root device.");
- }
- major_root = major(sb.st_rdev);
- minor_root = minor(sb.st_rdev);
- } else {
- major_root = 0;
- minor_root = 0;
- }
- } else {
- major_root = DEFAULT_MAJOR_ROOT;
- minor_root = DEFAULT_MINOR_ROOT;
- }
- fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root);
+ parse_zoffset(argv[3]);
+
+ dest = fopen(argv[4], "w");
+ if (!dest)
+ die("Unable to write `%s': %m", argv[4]);
/* Copy the setup code */
file = fopen(argv[1], "r");
@@ -181,10 +399,13 @@ int main(int argc, char ** argv)
die("read-error on `setup'");
if (c < 1024)
die("The setup must be at least 1024 bytes");
- if (buf[510] != 0x55 || buf[511] != 0xaa)
+ if (get_unaligned_le16(&buf[510]) != 0xAA55)
die("Boot block hasn't got boot flag (0xAA55)");
fclose(file);
+ c += reserve_pecoff_compat_section(c);
+ c += reserve_pecoff_reloc_section(c);
+
/* Pad unused space with zeros */
setup_sectors = (c + 511) / 512;
if (setup_sectors < SETUP_SECT_MIN)
@@ -192,11 +413,10 @@ int main(int argc, char ** argv)
i = setup_sectors*512;
memset(buf+c, 0, i-c);
- /* Set the default root device */
- buf[508] = minor_root;
- buf[509] = major_root;
+ update_pecoff_setup_and_reloc(i);
- fprintf(stderr, "Setup is %d bytes (padded to %d bytes).\n", c, i);
+ /* Set the default root device */
+ put_unaligned_le16(DEFAULT_ROOT_DEV, &buf[508]);
/* Open and stat the kernel file */
fd = open(argv[2], O_RDONLY);
@@ -205,41 +425,76 @@ int main(int argc, char ** argv)
if (fstat(fd, &sb))
die("Unable to stat `%s': %m", argv[2]);
sz = sb.st_size;
- fprintf (stderr, "System is %d kB\n", (sz+1023)/1024);
kernel = mmap(NULL, sz, PROT_READ, MAP_SHARED, fd, 0);
if (kernel == MAP_FAILED)
die("Unable to mmap '%s': %m", argv[2]);
/* Number of 16-byte paragraphs, including space for a 4-byte CRC */
sys_size = (sz + 15 + 4) / 16;
+#ifdef CONFIG_EFI_STUB
+ /*
+ * COFF requires minimum 32-byte alignment of sections, and
+ * adding a signature is problematic without that alignment.
+ */
+ sys_size = (sys_size + 1) & ~1;
+#endif
/* Patch the setup code with the appropriate size parameters */
buf[0x1f1] = setup_sectors-1;
- buf[0x1f4] = sys_size;
- buf[0x1f5] = sys_size >> 8;
- buf[0x1f6] = sys_size >> 16;
- buf[0x1f7] = sys_size >> 24;
+ put_unaligned_le32(sys_size, &buf[0x1f4]);
+
+ init_sz = get_unaligned_le32(&buf[0x260]);
+#ifdef CONFIG_EFI_STUB
+ /*
+ * The decompression buffer will start at ImageBase. When relocating
+ * the compressed kernel to its end, we must ensure that the head
+ * section does not get overwritten. The head section occupies
+ * [i, i + _ehead), and the destination is [init_sz - _end, init_sz).
+ *
+ * At present these should never overlap, because 'i' is at most 32k
+ * because of SETUP_SECT_MAX, '_ehead' is less than 1k, and the
+ * calculation of INIT_SIZE in boot/header.S ensures that
+ * 'init_sz - _end' is at least 64k.
+ *
+ * For future-proofing, increase init_sz if necessary.
+ */
+
+ if (init_sz - _end < i + _ehead) {
+ init_sz = (i + _ehead + _end + 4095) & ~4095;
+ put_unaligned_le32(init_sz, &buf[0x260]);
+ }
+#endif
+ update_pecoff_text(setup_sectors * 512, i + (sys_size * 16), init_sz);
+
+ efi_stub_entry_update();
+
+ /* Update kernel_info offset. */
+ put_unaligned_le32(kernel_info, &buf[0x268]);
crc = partial_crc32(buf, i, crc);
- if (fwrite(buf, 1, i, stdout) != i)
+ if (fwrite(buf, 1, i, dest) != i)
die("Writing setup failed");
/* Copy the kernel code */
crc = partial_crc32(kernel, sz, crc);
- if (fwrite(kernel, 1, sz, stdout) != sz)
+ if (fwrite(kernel, 1, sz, dest) != sz)
die("Writing kernel failed");
/* Add padding leaving 4 bytes for the checksum */
while (sz++ < (sys_size*16) - 4) {
crc = partial_crc32_one('\0', crc);
- if (fwrite("\0", 1, 1, stdout) != 1)
+ if (fwrite("\0", 1, 1, dest) != 1)
die("Writing padding failed");
}
/* Write the CRC */
- fprintf(stderr, "CRC %lx\n", crc);
- if (fwrite(&crc, 1, 4, stdout) != 4)
+ put_unaligned_le32(crc, buf);
+ if (fwrite(buf, 1, 4, dest) != 4)
die("Writing CRC failed");
+ /* Catch any delayed write failures */
+ if (fclose(dest))
+ die("Writing image failed");
+
close(fd);
/* Everything is OK */
diff --git a/arch/x86/boot/tty.c b/arch/x86/boot/tty.c
index def2451f46ae..f7eb976b0a4b 100644
--- a/arch/x86/boot/tty.c
+++ b/arch/x86/boot/tty.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -27,7 +25,7 @@ int early_serial_base;
* error during initialization.
*/
-static void __attribute__((section(".inittext"))) serial_putchar(int ch)
+static void __section(".inittext") serial_putchar(int ch)
{
unsigned timeout = 0xffff;
@@ -37,7 +35,7 @@ static void __attribute__((section(".inittext"))) serial_putchar(int ch)
outb(ch, early_serial_base + TXR);
}
-static void __attribute__((section(".inittext"))) bios_putchar(int ch)
+static void __section(".inittext") bios_putchar(int ch)
{
struct biosregs ireg;
@@ -49,7 +47,7 @@ static void __attribute__((section(".inittext"))) bios_putchar(int ch)
intcall(0x10, &ireg, NULL);
}
-void __attribute__((section(".inittext"))) putchar(int ch)
+void __section(".inittext") putchar(int ch)
{
if (ch == '\n')
putchar('\r'); /* \n -> \r\n */
@@ -60,7 +58,7 @@ void __attribute__((section(".inittext"))) putchar(int ch)
serial_putchar(ch);
}
-void __attribute__((section(".inittext"))) puts(const char *str)
+void __section(".inittext") puts(const char *str)
{
while (*str)
putchar(*str++);
diff --git a/arch/x86/boot/version.c b/arch/x86/boot/version.c
index 2b15aa488ffb..945383f0f606 100644
--- a/arch/x86/boot/version.c
+++ b/arch/x86/boot/version.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -13,6 +11,7 @@
*/
#include "boot.h"
+#include <generated/utsversion.h>
#include <generated/utsrelease.h>
#include <generated/compile.h>
diff --git a/arch/x86/boot/vesa.h b/arch/x86/boot/vesa.h
index 468e444622c5..9e23fdffbb88 100644
--- a/arch/x86/boot/vesa.h
+++ b/arch/x86/boot/vesa.h
@@ -1,13 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/* ----------------------------------------------------------------------- *
*
* Copyright 1999-2007 H. Peter Anvin - All Rights Reserved
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, Inc., 53 Temple Place Ste 330,
- * Boston MA 02111-1307, USA; either version 2 of the License, or
- * (at your option) any later version; incorporated herein by reference.
- *
* ----------------------------------------------------------------------- */
#ifndef BOOT_VESA_H
diff --git a/arch/x86/boot/video-bios.c b/arch/x86/boot/video-bios.c
index 49e0c18833e0..6eb8c06bc287 100644
--- a/arch/x86/boot/video-bios.c
+++ b/arch/x86/boot/video-bios.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
diff --git a/arch/x86/boot/video-mode.c b/arch/x86/boot/video-mode.c
index 748e8d06290a..9ada55dc1ab7 100644
--- a/arch/x86/boot/video-mode.c
+++ b/arch/x86/boot/video-mode.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007-2008 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -19,13 +17,13 @@
#include "video.h"
#include "vesa.h"
+#include <uapi/asm/boot.h>
+
/*
* Common variables
*/
-int adapter; /* 0=CGA/MDA/HGC, 1=EGA, 2=VGA+ */
-u16 video_segment;
+int adapter; /* 0=CGA/MDA/HGC, 1=EGA, 2=VGA+ */
int force_x, force_y; /* Don't query the BIOS for cols/rows */
-
int do_restore; /* Screen contents changed during mode flip */
int graphic_mode; /* Graphic mode with linear frame buffer */
diff --git a/arch/x86/boot/video-vesa.c b/arch/x86/boot/video-vesa.c
index 11e8c6eb80a1..c2c6d35e3a43 100644
--- a/arch/x86/boot/video-vesa.c
+++ b/arch/x86/boot/video-vesa.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -16,6 +14,7 @@
#include "boot.h"
#include "video.h"
#include "vesa.h"
+#include "string.h"
/* VESA information */
static struct vesa_general_info vginfo;
@@ -61,7 +60,7 @@ static int vesa_probe(void)
if (mode & ~0x1ff)
continue;
- memset(&vminfo, 0, sizeof vminfo); /* Just in case... */
+ memset(&vminfo, 0, sizeof(vminfo)); /* Just in case... */
ireg.ax = 0x4f01;
ireg.cx = mode;
@@ -84,7 +83,7 @@ static int vesa_probe(void)
(vminfo.memory_layout == 4 ||
vminfo.memory_layout == 6) &&
vminfo.memory_planes == 1) {
-#ifdef CONFIG_FB_BOOT_VESA_SUPPORT
+#ifdef CONFIG_BOOT_VESA_SUPPORT
/* Graphics mode, color, linear frame buffer
supported. Only register the mode if
if framebuffer is configured, however,
@@ -108,7 +107,7 @@ static int vesa_set_mode(struct mode_info *mode)
int is_graphic;
u16 vesa_mode = mode->mode - VIDEO_FIRST_VESA;
- memset(&vminfo, 0, sizeof vminfo); /* Just in case... */
+ memset(&vminfo, 0, sizeof(vminfo)); /* Just in case... */
initregs(&ireg);
ireg.ax = 0x4f01;
@@ -122,7 +121,7 @@ static int vesa_set_mode(struct mode_info *mode)
if ((vminfo.mode_attr & 0x15) == 0x05) {
/* It's a supported text mode */
is_graphic = 0;
-#ifdef CONFIG_FB_BOOT_VESA_SUPPORT
+#ifdef CONFIG_BOOT_VESA_SUPPORT
} else if ((vminfo.mode_attr & 0x99) == 0x99) {
/* It's a graphics mode with linear frame buffer */
is_graphic = 1;
@@ -240,7 +239,7 @@ void vesa_store_edid(void)
struct biosregs ireg, oreg;
/* Apparently used as a nonsense token... */
- memset(&boot_params.edid_info, 0x13, sizeof boot_params.edid_info);
+ memset(&boot_params.edid_info, 0x13, sizeof(boot_params.edid_info));
if (vginfo.version < 0x0200)
return; /* EDID requires VBE 2.0+ */
diff --git a/arch/x86/boot/video-vga.c b/arch/x86/boot/video-vga.c
index 45bc9402aa49..4816cb9cf996 100644
--- a/arch/x86/boot/video-vga.c
+++ b/arch/x86/boot/video-vga.c
@@ -1,12 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -241,9 +239,9 @@ static int vga_probe(void)
vga_modes,
};
static int mode_count[] = {
- sizeof(cga_modes)/sizeof(struct mode_info),
- sizeof(ega_modes)/sizeof(struct mode_info),
- sizeof(vga_modes)/sizeof(struct mode_info),
+ ARRAY_SIZE(cga_modes),
+ ARRAY_SIZE(ega_modes),
+ ARRAY_SIZE(vga_modes),
};
struct biosregs ireg, oreg;
diff --git a/arch/x86/boot/video.c b/arch/x86/boot/video.c
index 43eda284d27f..f2e96905b3fe 100644
--- a/arch/x86/boot/video.c
+++ b/arch/x86/boot/video.c
@@ -1,22 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0-only
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
* Copyright 2009 Intel Corporation; author H. Peter Anvin
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
* Select video mode
*/
+#include <uapi/asm/boot.h>
+
#include "boot.h"
#include "video.h"
#include "vesa.h"
+static u16 video_segment;
+
static void store_cursor_position(void)
{
struct biosregs ireg, oreg;
@@ -111,7 +113,7 @@ static unsigned int get_entry(void)
} else if ((key >= '0' && key <= '9') ||
(key >= 'A' && key <= 'Z') ||
(key >= 'a' && key <= 'z')) {
- if (len < sizeof entry_buf) {
+ if (len < sizeof(entry_buf)) {
entry_buf[len++] = key;
putchar(key);
}
diff --git a/arch/x86/boot/video.h b/arch/x86/boot/video.h
index ff339c5db311..04bde0bb2003 100644
--- a/arch/x86/boot/video.h
+++ b/arch/x86/boot/video.h
@@ -1,11 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/* -*- linux-c -*- ------------------------------------------------------- *
*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright 2007 rPath, Inc. - All Rights Reserved
*
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2.
- *
* ----------------------------------------------------------------------- */
/*
@@ -80,7 +78,7 @@ struct card_info {
u16 xmode_n; /* Size of unprobed mode range */
};
-#define __videocard struct card_info __attribute__((section(".videocards")))
+#define __videocard struct card_info __section(".videocards") __attribute__((used))
extern struct card_info video_cards[], video_cards_end[];
int mode_defined(u16 mode); /* video.c */
@@ -91,7 +89,6 @@ int mode_defined(u16 mode); /* video.c */
#define ADAPTER_VGA 2
extern int adapter;
-extern u16 video_segment;
extern int force_x, force_y; /* Don't query the BIOS for cols/rows */
extern int do_restore; /* Restore screen contents */
extern int graphic_mode; /* Graphics mode with linear frame buffer */
diff --git a/arch/x86/coco/Makefile b/arch/x86/coco/Makefile
new file mode 100644
index 000000000000..c816acf78b6a
--- /dev/null
+++ b/arch/x86/coco/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+CFLAGS_REMOVE_core.o = -pg
+KASAN_SANITIZE_core.o := n
+CFLAGS_core.o += -fno-stack-protector
+
+obj-y += core.o
+
+obj-$(CONFIG_INTEL_TDX_GUEST) += tdx/
diff --git a/arch/x86/coco/core.c b/arch/x86/coco/core.c
new file mode 100644
index 000000000000..73f83233d25d
--- /dev/null
+++ b/arch/x86/coco/core.c
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Confidential Computing Platform Capability checks
+ *
+ * Copyright (C) 2021 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ */
+
+#include <linux/export.h>
+#include <linux/cc_platform.h>
+
+#include <asm/coco.h>
+#include <asm/processor.h>
+
+enum cc_vendor cc_vendor __ro_after_init;
+static u64 cc_mask __ro_after_init;
+
+static bool intel_cc_platform_has(enum cc_attr attr)
+{
+ switch (attr) {
+ case CC_ATTR_GUEST_UNROLL_STRING_IO:
+ case CC_ATTR_HOTPLUG_DISABLED:
+ case CC_ATTR_GUEST_MEM_ENCRYPT:
+ case CC_ATTR_MEM_ENCRYPT:
+ return true;
+ default:
+ return false;
+ }
+}
+
+/*
+ * Handle the SEV-SNP vTOM case where sme_me_mask is zero, and
+ * the other levels of SME/SEV functionality, including C-bit
+ * based SEV-SNP, are not enabled.
+ */
+static __maybe_unused bool amd_cc_platform_vtom(enum cc_attr attr)
+{
+ switch (attr) {
+ case CC_ATTR_GUEST_MEM_ENCRYPT:
+ case CC_ATTR_MEM_ENCRYPT:
+ return true;
+ default:
+ return false;
+ }
+}
+
+/*
+ * SME and SEV are very similar but they are not the same, so there are
+ * times that the kernel will need to distinguish between SME and SEV. The
+ * cc_platform_has() function is used for this. When a distinction isn't
+ * needed, the CC_ATTR_MEM_ENCRYPT attribute can be used.
+ *
+ * The trampoline code is a good example for this requirement. Before
+ * paging is activated, SME will access all memory as decrypted, but SEV
+ * will access all memory as encrypted. So, when APs are being brought
+ * up under SME the trampoline area cannot be encrypted, whereas under SEV
+ * the trampoline area must be encrypted.
+ */
+
+static bool amd_cc_platform_has(enum cc_attr attr)
+{
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+
+ if (sev_status & MSR_AMD64_SNP_VTOM)
+ return amd_cc_platform_vtom(attr);
+
+ switch (attr) {
+ case CC_ATTR_MEM_ENCRYPT:
+ return sme_me_mask;
+
+ case CC_ATTR_HOST_MEM_ENCRYPT:
+ return sme_me_mask && !(sev_status & MSR_AMD64_SEV_ENABLED);
+
+ case CC_ATTR_GUEST_MEM_ENCRYPT:
+ return sev_status & MSR_AMD64_SEV_ENABLED;
+
+ case CC_ATTR_GUEST_STATE_ENCRYPT:
+ return sev_status & MSR_AMD64_SEV_ES_ENABLED;
+
+ /*
+ * With SEV, the rep string I/O instructions need to be unrolled
+ * but SEV-ES supports them through the #VC handler.
+ */
+ case CC_ATTR_GUEST_UNROLL_STRING_IO:
+ return (sev_status & MSR_AMD64_SEV_ENABLED) &&
+ !(sev_status & MSR_AMD64_SEV_ES_ENABLED);
+
+ case CC_ATTR_GUEST_SEV_SNP:
+ return sev_status & MSR_AMD64_SEV_SNP_ENABLED;
+
+ default:
+ return false;
+ }
+#else
+ return false;
+#endif
+}
+
+bool cc_platform_has(enum cc_attr attr)
+{
+ switch (cc_vendor) {
+ case CC_VENDOR_AMD:
+ return amd_cc_platform_has(attr);
+ case CC_VENDOR_INTEL:
+ return intel_cc_platform_has(attr);
+ default:
+ return false;
+ }
+}
+EXPORT_SYMBOL_GPL(cc_platform_has);
+
+u64 cc_mkenc(u64 val)
+{
+ /*
+ * Both AMD and Intel use a bit in the page table to indicate
+ * encryption status of the page.
+ *
+ * - for AMD, bit *set* means the page is encrypted
+ * - for AMD with vTOM and for Intel, *clear* means encrypted
+ */
+ switch (cc_vendor) {
+ case CC_VENDOR_AMD:
+ if (sev_status & MSR_AMD64_SNP_VTOM)
+ return val & ~cc_mask;
+ else
+ return val | cc_mask;
+ case CC_VENDOR_INTEL:
+ return val & ~cc_mask;
+ default:
+ return val;
+ }
+}
+
+u64 cc_mkdec(u64 val)
+{
+ /* See comment in cc_mkenc() */
+ switch (cc_vendor) {
+ case CC_VENDOR_AMD:
+ if (sev_status & MSR_AMD64_SNP_VTOM)
+ return val | cc_mask;
+ else
+ return val & ~cc_mask;
+ case CC_VENDOR_INTEL:
+ return val | cc_mask;
+ default:
+ return val;
+ }
+}
+EXPORT_SYMBOL_GPL(cc_mkdec);
+
+__init void cc_set_mask(u64 mask)
+{
+ cc_mask = mask;
+}
diff --git a/arch/x86/coco/tdx/Makefile b/arch/x86/coco/tdx/Makefile
new file mode 100644
index 000000000000..46c55998557d
--- /dev/null
+++ b/arch/x86/coco/tdx/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0
+
+obj-y += tdx.o tdcall.o
diff --git a/arch/x86/coco/tdx/tdcall.S b/arch/x86/coco/tdx/tdcall.S
new file mode 100644
index 000000000000..b193c0a1d8db
--- /dev/null
+++ b/arch/x86/coco/tdx/tdcall.S
@@ -0,0 +1,239 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <asm/asm-offsets.h>
+#include <asm/asm.h>
+#include <asm/frame.h>
+#include <asm/unwind_hints.h>
+
+#include <linux/linkage.h>
+#include <linux/bits.h>
+#include <linux/errno.h>
+
+#include "../../virt/vmx/tdx/tdxcall.S"
+
+/*
+ * Bitmasks of exposed registers (with VMM).
+ */
+#define TDX_RDX BIT(2)
+#define TDX_RBX BIT(3)
+#define TDX_RSI BIT(6)
+#define TDX_RDI BIT(7)
+#define TDX_R8 BIT(8)
+#define TDX_R9 BIT(9)
+#define TDX_R10 BIT(10)
+#define TDX_R11 BIT(11)
+#define TDX_R12 BIT(12)
+#define TDX_R13 BIT(13)
+#define TDX_R14 BIT(14)
+#define TDX_R15 BIT(15)
+
+/*
+ * These registers are clobbered to hold arguments for each
+ * TDVMCALL. They are safe to expose to the VMM.
+ * Each bit in this mask represents a register ID. Bit field
+ * details can be found in TDX GHCI specification, section
+ * titled "TDCALL [TDG.VP.VMCALL] leaf".
+ */
+#define TDVMCALL_EXPOSE_REGS_MASK \
+ ( TDX_RDX | TDX_RBX | TDX_RSI | TDX_RDI | TDX_R8 | TDX_R9 | \
+ TDX_R10 | TDX_R11 | TDX_R12 | TDX_R13 | TDX_R14 | TDX_R15 )
+
+.section .noinstr.text, "ax"
+
+/*
+ * __tdx_module_call() - Used by TDX guests to request services from
+ * the TDX module (does not include VMM services) using TDCALL instruction.
+ *
+ * Transforms function call register arguments into the TDCALL register ABI.
+ * After TDCALL operation, TDX module output is saved in @out (if it is
+ * provided by the user).
+ *
+ *-------------------------------------------------------------------------
+ * TDCALL ABI:
+ *-------------------------------------------------------------------------
+ * Input Registers:
+ *
+ * RAX - TDCALL Leaf number.
+ * RCX,RDX,R8-R9 - TDCALL Leaf specific input registers.
+ *
+ * Output Registers:
+ *
+ * RAX - TDCALL instruction error code.
+ * RCX,RDX,R8-R11 - TDCALL Leaf specific output registers.
+ *
+ *-------------------------------------------------------------------------
+ *
+ * __tdx_module_call() function ABI:
+ *
+ * @fn (RDI) - TDCALL Leaf ID, moved to RAX
+ * @rcx (RSI) - Input parameter 1, moved to RCX
+ * @rdx (RDX) - Input parameter 2, moved to RDX
+ * @r8 (RCX) - Input parameter 3, moved to R8
+ * @r9 (R8) - Input parameter 4, moved to R9
+ *
+ * @out (R9) - struct tdx_module_output pointer
+ * stored temporarily in R12 (not
+ * shared with the TDX module). It
+ * can be NULL.
+ *
+ * Return status of TDCALL via RAX.
+ */
+SYM_FUNC_START(__tdx_module_call)
+ FRAME_BEGIN
+ TDX_MODULE_CALL host=0
+ FRAME_END
+ RET
+SYM_FUNC_END(__tdx_module_call)
+
+/*
+ * TDX_HYPERCALL - Make hypercalls to a TDX VMM using TDVMCALL leaf of TDCALL
+ * instruction
+ *
+ * Transforms values in function call argument struct tdx_hypercall_args @args
+ * into the TDCALL register ABI. After TDCALL operation, VMM output is saved
+ * back in @args, if \ret is 1.
+ *
+ *-------------------------------------------------------------------------
+ * TD VMCALL ABI:
+ *-------------------------------------------------------------------------
+ *
+ * Input Registers:
+ *
+ * RAX - TDCALL instruction leaf number (0 - TDG.VP.VMCALL)
+ * RCX - BITMAP which controls which part of TD Guest GPR
+ * is passed as-is to the VMM and back.
+ * R10 - Set 0 to indicate TDCALL follows standard TDX ABI
+ * specification. Non zero value indicates vendor
+ * specific ABI.
+ * R11 - VMCALL sub function number
+ * RBX, RDX, RDI, RSI - Used to pass VMCALL sub function specific arguments.
+ * R8-R9, R12-R15 - Same as above.
+ *
+ * Output Registers:
+ *
+ * RAX - TDCALL instruction status (Not related to hypercall
+ * output).
+ * RBX, RDX, RDI, RSI - Hypercall sub function specific output values.
+ * R8-R15 - Same as above.
+ *
+ */
+.macro TDX_HYPERCALL ret:req
+ FRAME_BEGIN
+
+ /* Save callee-saved GPRs as mandated by the x86_64 ABI */
+ push %r15
+ push %r14
+ push %r13
+ push %r12
+ push %rbx
+
+ /* Free RDI to be used as TDVMCALL arguments */
+ movq %rdi, %rax
+
+ /* Copy hypercall registers from arg struct: */
+ movq TDX_HYPERCALL_r8(%rax), %r8
+ movq TDX_HYPERCALL_r9(%rax), %r9
+ movq TDX_HYPERCALL_r10(%rax), %r10
+ movq TDX_HYPERCALL_r11(%rax), %r11
+ movq TDX_HYPERCALL_r12(%rax), %r12
+ movq TDX_HYPERCALL_r13(%rax), %r13
+ movq TDX_HYPERCALL_r14(%rax), %r14
+ movq TDX_HYPERCALL_r15(%rax), %r15
+ movq TDX_HYPERCALL_rdi(%rax), %rdi
+ movq TDX_HYPERCALL_rsi(%rax), %rsi
+ movq TDX_HYPERCALL_rbx(%rax), %rbx
+ movq TDX_HYPERCALL_rdx(%rax), %rdx
+
+ push %rax
+
+ /* Mangle function call ABI into TDCALL ABI: */
+ /* Set TDCALL leaf ID (TDVMCALL (0)) in RAX */
+ xor %eax, %eax
+
+ movl $TDVMCALL_EXPOSE_REGS_MASK, %ecx
+
+ tdcall
+
+ /*
+ * RAX!=0 indicates a failure of the TDVMCALL mechanism itself and that
+ * something has gone horribly wrong with the TDX module.
+ *
+ * The return status of the hypercall operation is in a separate
+ * register (in R10). Hypercall errors are a part of normal operation
+ * and are handled by callers.
+ */
+ testq %rax, %rax
+ jne .Lpanic\@
+
+ pop %rax
+
+ .if \ret
+ movq %r8, TDX_HYPERCALL_r8(%rax)
+ movq %r9, TDX_HYPERCALL_r9(%rax)
+ movq %r10, TDX_HYPERCALL_r10(%rax)
+ movq %r11, TDX_HYPERCALL_r11(%rax)
+ movq %r12, TDX_HYPERCALL_r12(%rax)
+ movq %r13, TDX_HYPERCALL_r13(%rax)
+ movq %r14, TDX_HYPERCALL_r14(%rax)
+ movq %r15, TDX_HYPERCALL_r15(%rax)
+ movq %rdi, TDX_HYPERCALL_rdi(%rax)
+ movq %rsi, TDX_HYPERCALL_rsi(%rax)
+ movq %rbx, TDX_HYPERCALL_rbx(%rax)
+ movq %rdx, TDX_HYPERCALL_rdx(%rax)
+ .endif
+
+ /* TDVMCALL leaf return code is in R10 */
+ movq %r10, %rax
+
+ /*
+ * Zero out registers exposed to the VMM to avoid speculative execution
+ * with VMM-controlled values. This needs to include all registers
+ * present in TDVMCALL_EXPOSE_REGS_MASK, except RBX, and R12-R15 which
+ * will be restored.
+ */
+ xor %r8d, %r8d
+ xor %r9d, %r9d
+ xor %r10d, %r10d
+ xor %r11d, %r11d
+ xor %rdi, %rdi
+ xor %rdx, %rdx
+
+ /* Restore callee-saved GPRs as mandated by the x86_64 ABI */
+ pop %rbx
+ pop %r12
+ pop %r13
+ pop %r14
+ pop %r15
+
+ FRAME_END
+
+ RET
+.Lpanic\@:
+ call __tdx_hypercall_failed
+ /* __tdx_hypercall_failed never returns */
+ REACHABLE
+ jmp .Lpanic\@
+.endm
+
+/*
+ *
+ * __tdx_hypercall() function ABI:
+ *
+ * @args (RDI) - struct tdx_hypercall_args for input
+ *
+ * On successful completion, return the hypercall error code.
+ */
+SYM_FUNC_START(__tdx_hypercall)
+ TDX_HYPERCALL ret=0
+SYM_FUNC_END(__tdx_hypercall)
+
+/*
+ *
+ * __tdx_hypercall_ret() function ABI:
+ *
+ * @args (RDI) - struct tdx_hypercall_args for input and output
+ *
+ * On successful completion, return the hypercall error code.
+ */
+SYM_FUNC_START(__tdx_hypercall_ret)
+ TDX_HYPERCALL ret=1
+SYM_FUNC_END(__tdx_hypercall_ret)
diff --git a/arch/x86/coco/tdx/tdx.c b/arch/x86/coco/tdx/tdx.c
new file mode 100644
index 000000000000..e146b599260f
--- /dev/null
+++ b/arch/x86/coco/tdx/tdx.c
@@ -0,0 +1,875 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2021-2022 Intel Corporation */
+
+#undef pr_fmt
+#define pr_fmt(fmt) "tdx: " fmt
+
+#include <linux/cpufeature.h>
+#include <linux/export.h>
+#include <linux/io.h>
+#include <asm/coco.h>
+#include <asm/tdx.h>
+#include <asm/vmx.h>
+#include <asm/insn.h>
+#include <asm/insn-eval.h>
+#include <asm/pgtable.h>
+
+/* TDX module Call Leaf IDs */
+#define TDX_GET_INFO 1
+#define TDX_GET_VEINFO 3
+#define TDX_GET_REPORT 4
+#define TDX_ACCEPT_PAGE 6
+#define TDX_WR 8
+
+/* TDCS fields. To be used by TDG.VM.WR and TDG.VM.RD module calls */
+#define TDCS_NOTIFY_ENABLES 0x9100000000000010
+
+/* TDX hypercall Leaf IDs */
+#define TDVMCALL_MAP_GPA 0x10001
+#define TDVMCALL_REPORT_FATAL_ERROR 0x10003
+
+/* MMIO direction */
+#define EPT_READ 0
+#define EPT_WRITE 1
+
+/* Port I/O direction */
+#define PORT_READ 0
+#define PORT_WRITE 1
+
+/* See Exit Qualification for I/O Instructions in VMX documentation */
+#define VE_IS_IO_IN(e) ((e) & BIT(3))
+#define VE_GET_IO_SIZE(e) (((e) & GENMASK(2, 0)) + 1)
+#define VE_GET_PORT_NUM(e) ((e) >> 16)
+#define VE_IS_IO_STRING(e) ((e) & BIT(4))
+
+#define ATTR_DEBUG BIT(0)
+#define ATTR_SEPT_VE_DISABLE BIT(28)
+
+/* TDX Module call error codes */
+#define TDCALL_RETURN_CODE(a) ((a) >> 32)
+#define TDCALL_INVALID_OPERAND 0xc0000100
+
+#define TDREPORT_SUBTYPE_0 0
+
+/*
+ * Wrapper for standard use of __tdx_hypercall with no output aside from
+ * return code.
+ */
+static inline u64 _tdx_hypercall(u64 fn, u64 r12, u64 r13, u64 r14, u64 r15)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = TDX_HYPERCALL_STANDARD,
+ .r11 = fn,
+ .r12 = r12,
+ .r13 = r13,
+ .r14 = r14,
+ .r15 = r15,
+ };
+
+ return __tdx_hypercall(&args);
+}
+
+/* Called from __tdx_hypercall() for unrecoverable failure */
+noinstr void __tdx_hypercall_failed(void)
+{
+ instrumentation_begin();
+ panic("TDVMCALL failed. TDX module bug?");
+}
+
+/*
+ * The TDG.VP.VMCALL-Instruction-execution sub-functions are defined
+ * independently from but are currently matched 1:1 with VMX EXIT_REASONs.
+ * Reusing the KVM EXIT_REASON macros makes it easier to connect the host and
+ * guest sides of these calls.
+ */
+static __always_inline u64 hcall_func(u64 exit_reason)
+{
+ return exit_reason;
+}
+
+#ifdef CONFIG_KVM_GUEST
+long tdx_kvm_hypercall(unsigned int nr, unsigned long p1, unsigned long p2,
+ unsigned long p3, unsigned long p4)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = nr,
+ .r11 = p1,
+ .r12 = p2,
+ .r13 = p3,
+ .r14 = p4,
+ };
+
+ return __tdx_hypercall(&args);
+}
+EXPORT_SYMBOL_GPL(tdx_kvm_hypercall);
+#endif
+
+/*
+ * Used for TDX guests to make calls directly to the TD module. This
+ * should only be used for calls that have no legitimate reason to fail
+ * or where the kernel can not survive the call failing.
+ */
+static inline void tdx_module_call(u64 fn, u64 rcx, u64 rdx, u64 r8, u64 r9,
+ struct tdx_module_output *out)
+{
+ if (__tdx_module_call(fn, rcx, rdx, r8, r9, out))
+ panic("TDCALL %lld failed (Buggy TDX module!)\n", fn);
+}
+
+/**
+ * tdx_mcall_get_report0() - Wrapper to get TDREPORT0 (a.k.a. TDREPORT
+ * subtype 0) using TDG.MR.REPORT TDCALL.
+ * @reportdata: Address of the input buffer which contains user-defined
+ * REPORTDATA to be included into TDREPORT.
+ * @tdreport: Address of the output buffer to store TDREPORT.
+ *
+ * Refer to section titled "TDG.MR.REPORT leaf" in the TDX Module
+ * v1.0 specification for more information on TDG.MR.REPORT TDCALL.
+ * It is used in the TDX guest driver module to get the TDREPORT0.
+ *
+ * Return 0 on success, -EINVAL for invalid operands, or -EIO on
+ * other TDCALL failures.
+ */
+int tdx_mcall_get_report0(u8 *reportdata, u8 *tdreport)
+{
+ u64 ret;
+
+ ret = __tdx_module_call(TDX_GET_REPORT, virt_to_phys(tdreport),
+ virt_to_phys(reportdata), TDREPORT_SUBTYPE_0,
+ 0, NULL);
+ if (ret) {
+ if (TDCALL_RETURN_CODE(ret) == TDCALL_INVALID_OPERAND)
+ return -EINVAL;
+ return -EIO;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(tdx_mcall_get_report0);
+
+static void __noreturn tdx_panic(const char *msg)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = TDX_HYPERCALL_STANDARD,
+ .r11 = TDVMCALL_REPORT_FATAL_ERROR,
+ .r12 = 0, /* Error code: 0 is Panic */
+ };
+ union {
+ /* Define register order according to the GHCI */
+ struct { u64 r14, r15, rbx, rdi, rsi, r8, r9, rdx; };
+
+ char str[64];
+ } message;
+
+ /* VMM assumes '\0' in byte 65, if the message took all 64 bytes */
+ strncpy(message.str, msg, 64);
+
+ args.r8 = message.r8;
+ args.r9 = message.r9;
+ args.r14 = message.r14;
+ args.r15 = message.r15;
+ args.rdi = message.rdi;
+ args.rsi = message.rsi;
+ args.rbx = message.rbx;
+ args.rdx = message.rdx;
+
+ /*
+ * This hypercall should never return and it is not safe
+ * to keep the guest running. Call it forever if it
+ * happens to return.
+ */
+ while (1)
+ __tdx_hypercall(&args);
+}
+
+static void tdx_parse_tdinfo(u64 *cc_mask)
+{
+ struct tdx_module_output out;
+ unsigned int gpa_width;
+ u64 td_attr;
+
+ /*
+ * TDINFO TDX module call is used to get the TD execution environment
+ * information like GPA width, number of available vcpus, debug mode
+ * information, etc. More details about the ABI can be found in TDX
+ * Guest-Host-Communication Interface (GHCI), section 2.4.2 TDCALL
+ * [TDG.VP.INFO].
+ */
+ tdx_module_call(TDX_GET_INFO, 0, 0, 0, 0, &out);
+
+ /*
+ * The highest bit of a guest physical address is the "sharing" bit.
+ * Set it for shared pages and clear it for private pages.
+ *
+ * The GPA width that comes out of this call is critical. TDX guests
+ * can not meaningfully run without it.
+ */
+ gpa_width = out.rcx & GENMASK(5, 0);
+ *cc_mask = BIT_ULL(gpa_width - 1);
+
+ /*
+ * The kernel can not handle #VE's when accessing normal kernel
+ * memory. Ensure that no #VE will be delivered for accesses to
+ * TD-private memory. Only VMM-shared memory (MMIO) will #VE.
+ */
+ td_attr = out.rdx;
+ if (!(td_attr & ATTR_SEPT_VE_DISABLE)) {
+ const char *msg = "TD misconfiguration: SEPT_VE_DISABLE attribute must be set.";
+
+ /* Relax SEPT_VE_DISABLE check for debug TD. */
+ if (td_attr & ATTR_DEBUG)
+ pr_warn("%s\n", msg);
+ else
+ tdx_panic(msg);
+ }
+}
+
+/*
+ * The TDX module spec states that #VE may be injected for a limited set of
+ * reasons:
+ *
+ * - Emulation of the architectural #VE injection on EPT violation;
+ *
+ * - As a result of guest TD execution of a disallowed instruction,
+ * a disallowed MSR access, or CPUID virtualization;
+ *
+ * - A notification to the guest TD about anomalous behavior;
+ *
+ * The last one is opt-in and is not used by the kernel.
+ *
+ * The Intel Software Developer's Manual describes cases when instruction
+ * length field can be used in section "Information for VM Exits Due to
+ * Instruction Execution".
+ *
+ * For TDX, it ultimately means GET_VEINFO provides reliable instruction length
+ * information if #VE occurred due to instruction execution, but not for EPT
+ * violations.
+ */
+static int ve_instr_len(struct ve_info *ve)
+{
+ switch (ve->exit_reason) {
+ case EXIT_REASON_HLT:
+ case EXIT_REASON_MSR_READ:
+ case EXIT_REASON_MSR_WRITE:
+ case EXIT_REASON_CPUID:
+ case EXIT_REASON_IO_INSTRUCTION:
+ /* It is safe to use ve->instr_len for #VE due instructions */
+ return ve->instr_len;
+ case EXIT_REASON_EPT_VIOLATION:
+ /*
+ * For EPT violations, ve->insn_len is not defined. For those,
+ * the kernel must decode instructions manually and should not
+ * be using this function.
+ */
+ WARN_ONCE(1, "ve->instr_len is not defined for EPT violations");
+ return 0;
+ default:
+ WARN_ONCE(1, "Unexpected #VE-type: %lld\n", ve->exit_reason);
+ return ve->instr_len;
+ }
+}
+
+static u64 __cpuidle __halt(const bool irq_disabled)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = TDX_HYPERCALL_STANDARD,
+ .r11 = hcall_func(EXIT_REASON_HLT),
+ .r12 = irq_disabled,
+ };
+
+ /*
+ * Emulate HLT operation via hypercall. More info about ABI
+ * can be found in TDX Guest-Host-Communication Interface
+ * (GHCI), section 3.8 TDG.VP.VMCALL<Instruction.HLT>.
+ *
+ * The VMM uses the "IRQ disabled" param to understand IRQ
+ * enabled status (RFLAGS.IF) of the TD guest and to determine
+ * whether or not it should schedule the halted vCPU if an
+ * IRQ becomes pending. E.g. if IRQs are disabled, the VMM
+ * can keep the vCPU in virtual HLT, even if an IRQ is
+ * pending, without hanging/breaking the guest.
+ */
+ return __tdx_hypercall(&args);
+}
+
+static int handle_halt(struct ve_info *ve)
+{
+ const bool irq_disabled = irqs_disabled();
+
+ if (__halt(irq_disabled))
+ return -EIO;
+
+ return ve_instr_len(ve);
+}
+
+void __cpuidle tdx_safe_halt(void)
+{
+ const bool irq_disabled = false;
+
+ /*
+ * Use WARN_ONCE() to report the failure.
+ */
+ if (__halt(irq_disabled))
+ WARN_ONCE(1, "HLT instruction emulation failed\n");
+}
+
+static int read_msr(struct pt_regs *regs, struct ve_info *ve)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = TDX_HYPERCALL_STANDARD,
+ .r11 = hcall_func(EXIT_REASON_MSR_READ),
+ .r12 = regs->cx,
+ };
+
+ /*
+ * Emulate the MSR read via hypercall. More info about ABI
+ * can be found in TDX Guest-Host-Communication Interface
+ * (GHCI), section titled "TDG.VP.VMCALL<Instruction.RDMSR>".
+ */
+ if (__tdx_hypercall_ret(&args))
+ return -EIO;
+
+ regs->ax = lower_32_bits(args.r11);
+ regs->dx = upper_32_bits(args.r11);
+ return ve_instr_len(ve);
+}
+
+static int write_msr(struct pt_regs *regs, struct ve_info *ve)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = TDX_HYPERCALL_STANDARD,
+ .r11 = hcall_func(EXIT_REASON_MSR_WRITE),
+ .r12 = regs->cx,
+ .r13 = (u64)regs->dx << 32 | regs->ax,
+ };
+
+ /*
+ * Emulate the MSR write via hypercall. More info about ABI
+ * can be found in TDX Guest-Host-Communication Interface
+ * (GHCI) section titled "TDG.VP.VMCALL<Instruction.WRMSR>".
+ */
+ if (__tdx_hypercall(&args))
+ return -EIO;
+
+ return ve_instr_len(ve);
+}
+
+static int handle_cpuid(struct pt_regs *regs, struct ve_info *ve)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = TDX_HYPERCALL_STANDARD,
+ .r11 = hcall_func(EXIT_REASON_CPUID),
+ .r12 = regs->ax,
+ .r13 = regs->cx,
+ };
+
+ /*
+ * Only allow VMM to control range reserved for hypervisor
+ * communication.
+ *
+ * Return all-zeros for any CPUID outside the range. It matches CPU
+ * behaviour for non-supported leaf.
+ */
+ if (regs->ax < 0x40000000 || regs->ax > 0x4FFFFFFF) {
+ regs->ax = regs->bx = regs->cx = regs->dx = 0;
+ return ve_instr_len(ve);
+ }
+
+ /*
+ * Emulate the CPUID instruction via a hypercall. More info about
+ * ABI can be found in TDX Guest-Host-Communication Interface
+ * (GHCI), section titled "VP.VMCALL<Instruction.CPUID>".
+ */
+ if (__tdx_hypercall_ret(&args))
+ return -EIO;
+
+ /*
+ * As per TDX GHCI CPUID ABI, r12-r15 registers contain contents of
+ * EAX, EBX, ECX, EDX registers after the CPUID instruction execution.
+ * So copy the register contents back to pt_regs.
+ */
+ regs->ax = args.r12;
+ regs->bx = args.r13;
+ regs->cx = args.r14;
+ regs->dx = args.r15;
+
+ return ve_instr_len(ve);
+}
+
+static bool mmio_read(int size, unsigned long addr, unsigned long *val)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = TDX_HYPERCALL_STANDARD,
+ .r11 = hcall_func(EXIT_REASON_EPT_VIOLATION),
+ .r12 = size,
+ .r13 = EPT_READ,
+ .r14 = addr,
+ .r15 = *val,
+ };
+
+ if (__tdx_hypercall_ret(&args))
+ return false;
+ *val = args.r11;
+ return true;
+}
+
+static bool mmio_write(int size, unsigned long addr, unsigned long val)
+{
+ return !_tdx_hypercall(hcall_func(EXIT_REASON_EPT_VIOLATION), size,
+ EPT_WRITE, addr, val);
+}
+
+static int handle_mmio(struct pt_regs *regs, struct ve_info *ve)
+{
+ unsigned long *reg, val, vaddr;
+ char buffer[MAX_INSN_SIZE];
+ enum insn_mmio_type mmio;
+ struct insn insn = {};
+ int size, extend_size;
+ u8 extend_val = 0;
+
+ /* Only in-kernel MMIO is supported */
+ if (WARN_ON_ONCE(user_mode(regs)))
+ return -EFAULT;
+
+ if (copy_from_kernel_nofault(buffer, (void *)regs->ip, MAX_INSN_SIZE))
+ return -EFAULT;
+
+ if (insn_decode(&insn, buffer, MAX_INSN_SIZE, INSN_MODE_64))
+ return -EINVAL;
+
+ mmio = insn_decode_mmio(&insn, &size);
+ if (WARN_ON_ONCE(mmio == INSN_MMIO_DECODE_FAILED))
+ return -EINVAL;
+
+ if (mmio != INSN_MMIO_WRITE_IMM && mmio != INSN_MMIO_MOVS) {
+ reg = insn_get_modrm_reg_ptr(&insn, regs);
+ if (!reg)
+ return -EINVAL;
+ }
+
+ /*
+ * Reject EPT violation #VEs that split pages.
+ *
+ * MMIO accesses are supposed to be naturally aligned and therefore
+ * never cross page boundaries. Seeing split page accesses indicates
+ * a bug or a load_unaligned_zeropad() that stepped into an MMIO page.
+ *
+ * load_unaligned_zeropad() will recover using exception fixups.
+ */
+ vaddr = (unsigned long)insn_get_addr_ref(&insn, regs);
+ if (vaddr / PAGE_SIZE != (vaddr + size - 1) / PAGE_SIZE)
+ return -EFAULT;
+
+ /* Handle writes first */
+ switch (mmio) {
+ case INSN_MMIO_WRITE:
+ memcpy(&val, reg, size);
+ if (!mmio_write(size, ve->gpa, val))
+ return -EIO;
+ return insn.length;
+ case INSN_MMIO_WRITE_IMM:
+ val = insn.immediate.value;
+ if (!mmio_write(size, ve->gpa, val))
+ return -EIO;
+ return insn.length;
+ case INSN_MMIO_READ:
+ case INSN_MMIO_READ_ZERO_EXTEND:
+ case INSN_MMIO_READ_SIGN_EXTEND:
+ /* Reads are handled below */
+ break;
+ case INSN_MMIO_MOVS:
+ case INSN_MMIO_DECODE_FAILED:
+ /*
+ * MMIO was accessed with an instruction that could not be
+ * decoded or handled properly. It was likely not using io.h
+ * helpers or accessed MMIO accidentally.
+ */
+ return -EINVAL;
+ default:
+ WARN_ONCE(1, "Unknown insn_decode_mmio() decode value?");
+ return -EINVAL;
+ }
+
+ /* Handle reads */
+ if (!mmio_read(size, ve->gpa, &val))
+ return -EIO;
+
+ switch (mmio) {
+ case INSN_MMIO_READ:
+ /* Zero-extend for 32-bit operation */
+ extend_size = size == 4 ? sizeof(*reg) : 0;
+ break;
+ case INSN_MMIO_READ_ZERO_EXTEND:
+ /* Zero extend based on operand size */
+ extend_size = insn.opnd_bytes;
+ break;
+ case INSN_MMIO_READ_SIGN_EXTEND:
+ /* Sign extend based on operand size */
+ extend_size = insn.opnd_bytes;
+ if (size == 1 && val & BIT(7))
+ extend_val = 0xFF;
+ else if (size > 1 && val & BIT(15))
+ extend_val = 0xFF;
+ break;
+ default:
+ /* All other cases has to be covered with the first switch() */
+ WARN_ON_ONCE(1);
+ return -EINVAL;
+ }
+
+ if (extend_size)
+ memset(reg, extend_val, extend_size);
+ memcpy(reg, &val, size);
+ return insn.length;
+}
+
+static bool handle_in(struct pt_regs *regs, int size, int port)
+{
+ struct tdx_hypercall_args args = {
+ .r10 = TDX_HYPERCALL_STANDARD,
+ .r11 = hcall_func(EXIT_REASON_IO_INSTRUCTION),
+ .r12 = size,
+ .r13 = PORT_READ,
+ .r14 = port,
+ };
+ u64 mask = GENMASK(BITS_PER_BYTE * size, 0);
+ bool success;
+
+ /*
+ * Emulate the I/O read via hypercall. More info about ABI can be found
+ * in TDX Guest-Host-Communication Interface (GHCI) section titled
+ * "TDG.VP.VMCALL<Instruction.IO>".
+ */
+ success = !__tdx_hypercall_ret(&args);
+
+ /* Update part of the register affected by the emulated instruction */
+ regs->ax &= ~mask;
+ if (success)
+ regs->ax |= args.r11 & mask;
+
+ return success;
+}
+
+static bool handle_out(struct pt_regs *regs, int size, int port)
+{
+ u64 mask = GENMASK(BITS_PER_BYTE * size, 0);
+
+ /*
+ * Emulate the I/O write via hypercall. More info about ABI can be found
+ * in TDX Guest-Host-Communication Interface (GHCI) section titled
+ * "TDG.VP.VMCALL<Instruction.IO>".
+ */
+ return !_tdx_hypercall(hcall_func(EXIT_REASON_IO_INSTRUCTION), size,
+ PORT_WRITE, port, regs->ax & mask);
+}
+
+/*
+ * Emulate I/O using hypercall.
+ *
+ * Assumes the IO instruction was using ax, which is enforced
+ * by the standard io.h macros.
+ *
+ * Return True on success or False on failure.
+ */
+static int handle_io(struct pt_regs *regs, struct ve_info *ve)
+{
+ u32 exit_qual = ve->exit_qual;
+ int size, port;
+ bool in, ret;
+
+ if (VE_IS_IO_STRING(exit_qual))
+ return -EIO;
+
+ in = VE_IS_IO_IN(exit_qual);
+ size = VE_GET_IO_SIZE(exit_qual);
+ port = VE_GET_PORT_NUM(exit_qual);
+
+
+ if (in)
+ ret = handle_in(regs, size, port);
+ else
+ ret = handle_out(regs, size, port);
+ if (!ret)
+ return -EIO;
+
+ return ve_instr_len(ve);
+}
+
+/*
+ * Early #VE exception handler. Only handles a subset of port I/O.
+ * Intended only for earlyprintk. If failed, return false.
+ */
+__init bool tdx_early_handle_ve(struct pt_regs *regs)
+{
+ struct ve_info ve;
+ int insn_len;
+
+ tdx_get_ve_info(&ve);
+
+ if (ve.exit_reason != EXIT_REASON_IO_INSTRUCTION)
+ return false;
+
+ insn_len = handle_io(regs, &ve);
+ if (insn_len < 0)
+ return false;
+
+ regs->ip += insn_len;
+ return true;
+}
+
+void tdx_get_ve_info(struct ve_info *ve)
+{
+ struct tdx_module_output out;
+
+ /*
+ * Called during #VE handling to retrieve the #VE info from the
+ * TDX module.
+ *
+ * This has to be called early in #VE handling. A "nested" #VE which
+ * occurs before this will raise a #DF and is not recoverable.
+ *
+ * The call retrieves the #VE info from the TDX module, which also
+ * clears the "#VE valid" flag. This must be done before anything else
+ * because any #VE that occurs while the valid flag is set will lead to
+ * #DF.
+ *
+ * Note, the TDX module treats virtual NMIs as inhibited if the #VE
+ * valid flag is set. It means that NMI=>#VE will not result in a #DF.
+ */
+ tdx_module_call(TDX_GET_VEINFO, 0, 0, 0, 0, &out);
+
+ /* Transfer the output parameters */
+ ve->exit_reason = out.rcx;
+ ve->exit_qual = out.rdx;
+ ve->gla = out.r8;
+ ve->gpa = out.r9;
+ ve->instr_len = lower_32_bits(out.r10);
+ ve->instr_info = upper_32_bits(out.r10);
+}
+
+/*
+ * Handle the user initiated #VE.
+ *
+ * On success, returns the number of bytes RIP should be incremented (>=0)
+ * or -errno on error.
+ */
+static int virt_exception_user(struct pt_regs *regs, struct ve_info *ve)
+{
+ switch (ve->exit_reason) {
+ case EXIT_REASON_CPUID:
+ return handle_cpuid(regs, ve);
+ default:
+ pr_warn("Unexpected #VE: %lld\n", ve->exit_reason);
+ return -EIO;
+ }
+}
+
+static inline bool is_private_gpa(u64 gpa)
+{
+ return gpa == cc_mkenc(gpa);
+}
+
+/*
+ * Handle the kernel #VE.
+ *
+ * On success, returns the number of bytes RIP should be incremented (>=0)
+ * or -errno on error.
+ */
+static int virt_exception_kernel(struct pt_regs *regs, struct ve_info *ve)
+{
+ switch (ve->exit_reason) {
+ case EXIT_REASON_HLT:
+ return handle_halt(ve);
+ case EXIT_REASON_MSR_READ:
+ return read_msr(regs, ve);
+ case EXIT_REASON_MSR_WRITE:
+ return write_msr(regs, ve);
+ case EXIT_REASON_CPUID:
+ return handle_cpuid(regs, ve);
+ case EXIT_REASON_EPT_VIOLATION:
+ if (is_private_gpa(ve->gpa))
+ panic("Unexpected EPT-violation on private memory.");
+ return handle_mmio(regs, ve);
+ case EXIT_REASON_IO_INSTRUCTION:
+ return handle_io(regs, ve);
+ default:
+ pr_warn("Unexpected #VE: %lld\n", ve->exit_reason);
+ return -EIO;
+ }
+}
+
+bool tdx_handle_virt_exception(struct pt_regs *regs, struct ve_info *ve)
+{
+ int insn_len;
+
+ if (user_mode(regs))
+ insn_len = virt_exception_user(regs, ve);
+ else
+ insn_len = virt_exception_kernel(regs, ve);
+ if (insn_len < 0)
+ return false;
+
+ /* After successful #VE handling, move the IP */
+ regs->ip += insn_len;
+
+ return true;
+}
+
+static bool tdx_tlb_flush_required(bool private)
+{
+ /*
+ * TDX guest is responsible for flushing TLB on private->shared
+ * transition. VMM is responsible for flushing on shared->private.
+ *
+ * The VMM _can't_ flush private addresses as it can't generate PAs
+ * with the guest's HKID. Shared memory isn't subject to integrity
+ * checking, i.e. the VMM doesn't need to flush for its own protection.
+ *
+ * There's no need to flush when converting from shared to private,
+ * as flushing is the VMM's responsibility in this case, e.g. it must
+ * flush to avoid integrity failures in the face of a buggy or
+ * malicious guest.
+ */
+ return !private;
+}
+
+static bool tdx_cache_flush_required(void)
+{
+ /*
+ * AMD SME/SEV can avoid cache flushing if HW enforces cache coherence.
+ * TDX doesn't have such capability.
+ *
+ * Flush cache unconditionally.
+ */
+ return true;
+}
+
+static bool try_accept_one(phys_addr_t *start, unsigned long len,
+ enum pg_level pg_level)
+{
+ unsigned long accept_size = page_level_size(pg_level);
+ u64 tdcall_rcx;
+ u8 page_size;
+
+ if (!IS_ALIGNED(*start, accept_size))
+ return false;
+
+ if (len < accept_size)
+ return false;
+
+ /*
+ * Pass the page physical address to the TDX module to accept the
+ * pending, private page.
+ *
+ * Bits 2:0 of RCX encode page size: 0 - 4K, 1 - 2M, 2 - 1G.
+ */
+ switch (pg_level) {
+ case PG_LEVEL_4K:
+ page_size = 0;
+ break;
+ case PG_LEVEL_2M:
+ page_size = 1;
+ break;
+ case PG_LEVEL_1G:
+ page_size = 2;
+ break;
+ default:
+ return false;
+ }
+
+ tdcall_rcx = *start | page_size;
+ if (__tdx_module_call(TDX_ACCEPT_PAGE, tdcall_rcx, 0, 0, 0, NULL))
+ return false;
+
+ *start += accept_size;
+ return true;
+}
+
+/*
+ * Inform the VMM of the guest's intent for this physical page: shared with
+ * the VMM or private to the guest. The VMM is expected to change its mapping
+ * of the page in response.
+ */
+static bool tdx_enc_status_changed(unsigned long vaddr, int numpages, bool enc)
+{
+ phys_addr_t start = __pa(vaddr);
+ phys_addr_t end = __pa(vaddr + numpages * PAGE_SIZE);
+
+ if (!enc) {
+ /* Set the shared (decrypted) bits: */
+ start |= cc_mkdec(0);
+ end |= cc_mkdec(0);
+ }
+
+ /*
+ * Notify the VMM about page mapping conversion. More info about ABI
+ * can be found in TDX Guest-Host-Communication Interface (GHCI),
+ * section "TDG.VP.VMCALL<MapGPA>"
+ */
+ if (_tdx_hypercall(TDVMCALL_MAP_GPA, start, end - start, 0, 0))
+ return false;
+
+ /* private->shared conversion requires only MapGPA call */
+ if (!enc)
+ return true;
+
+ /*
+ * For shared->private conversion, accept the page using
+ * TDX_ACCEPT_PAGE TDX module call.
+ */
+ while (start < end) {
+ unsigned long len = end - start;
+
+ /*
+ * Try larger accepts first. It gives chance to VMM to keep
+ * 1G/2M SEPT entries where possible and speeds up process by
+ * cutting number of hypercalls (if successful).
+ */
+
+ if (try_accept_one(&start, len, PG_LEVEL_1G))
+ continue;
+
+ if (try_accept_one(&start, len, PG_LEVEL_2M))
+ continue;
+
+ if (!try_accept_one(&start, len, PG_LEVEL_4K))
+ return false;
+ }
+
+ return true;
+}
+
+void __init tdx_early_init(void)
+{
+ u64 cc_mask;
+ u32 eax, sig[3];
+
+ cpuid_count(TDX_CPUID_LEAF_ID, 0, &eax, &sig[0], &sig[2], &sig[1]);
+
+ if (memcmp(TDX_IDENT, sig, sizeof(sig)))
+ return;
+
+ setup_force_cpu_cap(X86_FEATURE_TDX_GUEST);
+
+ cc_set_vendor(CC_VENDOR_INTEL);
+ tdx_parse_tdinfo(&cc_mask);
+ cc_set_mask(cc_mask);
+
+ /* Kernel does not use NOTIFY_ENABLES and does not need random #VEs */
+ tdx_module_call(TDX_WR, 0, TDCS_NOTIFY_ENABLES, 0, -1ULL, NULL);
+
+ /*
+ * All bits above GPA width are reserved and kernel treats shared bit
+ * as flag, not as part of physical address.
+ *
+ * Adjust physical mask to only cover valid GPA bits.
+ */
+ physical_mask &= cc_mask - 1;
+
+ x86_platform.guest.enc_cache_flush_required = tdx_cache_flush_required;
+ x86_platform.guest.enc_tlb_flush_required = tdx_tlb_flush_required;
+ x86_platform.guest.enc_status_change_finish = tdx_enc_status_changed;
+
+ pr_info("Guest detected\n");
+}
diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index 6f9872658dd2..3cf34912abfe 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -1,77 +1,68 @@
-CONFIG_EXPERIMENTAL=y
-# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_WERROR=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
+CONFIG_USELIB=y
+CONFIG_AUDIT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
-CONFIG_AUDIT=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_CGROUPS=y
-CONFIG_CGROUP_NS=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
+CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
-CONFIG_RESOURCE_COUNTERS=y
-CONFIG_CGROUP_SCHED=y
-CONFIG_UTS_NS=y
-CONFIG_IPC_NS=y
-CONFIG_USER_NS=y
-CONFIG_PID_NS=y
-CONFIG_NET_NS=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_MISC=y
+CONFIG_CGROUP_DEBUG=y
CONFIG_BLK_DEV_INITRD=y
-CONFIG_KALLSYMS_EXTRA_PASS=y
-# CONFIG_COMPAT_BRK is not set
+CONFIG_KALLSYMS_ALL=y
CONFIG_PROFILING=y
-CONFIG_KPROBES=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_MODULE_FORCE_UNLOAD=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
CONFIG_SMP=y
-CONFIG_SPARSE_IRQ=y
-CONFIG_X86_GENERIC=y
-CONFIG_HPET_TIMER=y
-CONFIG_SCHED_SMT=y
-CONFIG_PREEMPT_VOLUNTARY=y
+CONFIG_HYPERVISOR_GUEST=y
+CONFIG_PARAVIRT=y
+CONFIG_NR_CPUS=8
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
-CONFIG_X86_MCE=y
-CONFIG_X86_REBOOTFIXUPS=y
-CONFIG_MICROCODE=y
CONFIG_MICROCODE_AMD=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
-CONFIG_HIGHPTE=y
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_EFI=y
+CONFIG_EFI_STUB=y
CONFIG_HZ_1000=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
-# CONFIG_COMPAT_VDSO is not set
-CONFIG_PM=y
+# CONFIG_RETHUNK is not set
+CONFIG_HIBERNATION=y
CONFIG_PM_DEBUG=y
CONFIG_PM_TRACE_RTC=y
-CONFIG_HIBERNATION=y
-CONFIG_ACPI_PROCFS=y
CONFIG_ACPI_DOCK=y
-CONFIG_CPU_FREQ=y
-CONFIG_CPU_FREQ_DEBUG=y
-# CONFIG_CPU_FREQ_STAT is not set
+CONFIG_ACPI_BGRT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_X86_ACPI_CPUFREQ=y
-CONFIG_PCIEPORTBUS=y
-CONFIG_PCI_MSI=y
-CONFIG_PCCARD=y
-CONFIG_YENTA=y
-CONFIG_HOTPLUG_PCI=y
-CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
+CONFIG_KPROBES=y
+CONFIG_JUMP_LABEL=y
+CONFIG_COMPAT_32BIT_TIME=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_BLK_CGROUP_IOLATENCY=y
+CONFIG_BLK_CGROUP_IOCOST=y
+CONFIG_BLK_CGROUP_IOPRIO=y
CONFIG_BINFMT_MISC=y
+# CONFIG_COMPAT_BRK is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@@ -90,16 +81,12 @@ CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
# CONFIG_TCP_CONG_WESTWOOD is not set
# CONFIG_TCP_CONG_HTCP is not set
CONFIG_TCP_MD5SIG=y
-CONFIG_IPV6=y
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
CONFIG_NETLABEL=y
@@ -110,6 +97,7 @@ CONFIG_NF_CONNTRACK_FTP=y
CONFIG_NF_CONNTRACK_IRC=y
CONFIG_NF_CONNTRACK_SIP=y
CONFIG_NF_CT_NETLINK=y
+CONFIG_NF_NAT=y
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
CONFIG_NETFILTER_XT_TARGET_NFLOG=y
CONFIG_NETFILTER_XT_TARGET_SECMARK=y
@@ -117,43 +105,46 @@ CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
CONFIG_NETFILTER_XT_MATCH_POLICY=y
CONFIG_NETFILTER_XT_MATCH_STATE=y
-CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_LOG=y
-CONFIG_IP_NF_TARGET_ULOG=y
-CONFIG_NF_NAT=y
-CONFIG_IP_NF_TARGET_MASQUERADE=y
+CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_MANGLE=y
-CONFIG_NF_CONNTRACK_IPV6=y
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP6_NF_MATCH_IPV6HEADER=y
-CONFIG_IP6_NF_TARGET_LOG=y
CONFIG_IP6_NF_FILTER=y
CONFIG_IP6_NF_TARGET_REJECT=y
CONFIG_IP6_NF_MANGLE=y
CONFIG_NET_SCHED=y
+CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_EMATCH=y
CONFIG_NET_CLS_ACT=y
-CONFIG_HAMRADIO=y
+CONFIG_CGROUP_NET_PRIO=y
CONFIG_CFG80211=y
CONFIG_MAC80211=y
CONFIG_MAC80211_LEDS=y
CONFIG_RFKILL=y
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_NET_9P=y
+CONFIG_NET_9P_VIRTIO=y
+CONFIG_PCI=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCI_MSI=y
+CONFIG_HOTPLUG_PCI=y
+CONFIG_PCCARD=y
+CONFIG_YENTA=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
CONFIG_DEBUG_DEVRES=y
CONFIG_CONNECTOR=y
+CONFIG_EFI_CAPSULE_LOADER=y
CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=16384
+CONFIG_VIRTIO_BLK=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
-CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_SPI_ATTRS=y
-# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_SCSI_VIRTIO=y
CONFIG_ATA=y
CONFIG_SATA_AHCI=y
CONFIG_ATA_PIIX=y
@@ -170,34 +161,26 @@ CONFIG_DM_ZERO=y
CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-CONFIG_NET_VENDOR_3COM=y
+CONFIG_NETCONSOLE=y
+CONFIG_VIRTIO_NET=y
+CONFIG_BNX2=y
+CONFIG_TIGON3=y
CONFIG_NET_TULIP=y
-CONFIG_NET_PCI=y
-CONFIG_FORCEDETH=y
CONFIG_E100=y
+CONFIG_E1000=y
+CONFIG_E1000E=y
+CONFIG_SKY2=y
CONFIG_NE2K_PCI=y
+CONFIG_FORCEDETH=y
CONFIG_8139TOO=y
# CONFIG_8139TOO_PIO is not set
-CONFIG_E1000=y
-CONFIG_E1000E=y
CONFIG_R8169=y
-CONFIG_SKY2=y
-CONFIG_TIGON3=y
-CONFIG_BNX2=y
-CONFIG_TR=y
-CONFIG_NET_PCMCIA=y
-CONFIG_FDDI=y
-CONFIG_NETCONSOLE=y
-CONFIG_INPUT_POLLDEV=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_JOYSTICK=y
CONFIG_INPUT_TABLET=y
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_INPUT_MISC=y
-CONFIG_VT_HW_CONSOLE_BINDING=y
-CONFIG_SERIAL_NONSTANDARD=y
+# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=32
@@ -206,7 +189,8 @@ CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
-# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_NONSTANDARD=y
+CONFIG_VIRTIO_CONSOLE=y
CONFIG_HW_RANDOM=y
CONFIG_NVRAM=y
CONFIG_HPET=y
@@ -218,28 +202,15 @@ CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
CONFIG_DRM=y
CONFIG_DRM_I915=y
-CONFIG_FB_MODE_HELPERS=y
-CONFIG_FB_TILEBLITTING=y
-CONFIG_FB_EFI=y
-CONFIG_BACKLIGHT_LCD_SUPPORT=y
-# CONFIG_LCD_CLASS_DEVICE is not set
-CONFIG_VGACON_SOFT_SCROLLBACK=y
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_DRM_VIRTIO_GPU=y
CONFIG_SOUND=y
CONFIG_SND=y
+CONFIG_SND_HRTIMER=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_SEQ_DUMMY=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
-CONFIG_SND_HRTIMER=y
CONFIG_SND_HDA_INTEL=y
CONFIG_SND_HDA_HWDEP=y
CONFIG_HIDRAW=y
-CONFIG_HID_PID=y
-CONFIG_USB_HIDDEV=y
CONFIG_HID_GYRATION=y
CONFIG_LOGITECH_FF=y
CONFIG_HID_NTRIG=y
@@ -250,29 +221,26 @@ CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_HID_TOPSEED=y
+CONFIG_HID_PID=y
+CONFIG_USB_HIDDEV=y
CONFIG_USB=y
-CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-CONFIG_USB_DEVICEFS=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=y
+CONFIG_USB_XHCI_HCD=y
CONFIG_USB_EHCI_HCD=y
-# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_PRINTER=y
CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
-CONFIG_EDAC=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
CONFIG_DMADEVICES=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_INPUT=y
CONFIG_EEEPC_LAPTOP=y
-CONFIG_EFI_VARS=y
-CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_EXT3_FS_POSIX_ACL=y
-CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
@@ -284,57 +252,34 @@ CONFIG_ZISOFS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
-CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_HUGETLBFS=y
CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
-CONFIG_PARTITION_ADVANCED=y
-CONFIG_OSF_PARTITION=y
-CONFIG_AMIGA_PARTITION=y
-CONFIG_MAC_PARTITION=y
-CONFIG_BSD_DISKLABEL=y
-CONFIG_MINIX_SUBPARTITION=y
-CONFIG_SOLARIS_X86_PARTITION=y
-CONFIG_UNIXWARE_DISKLABEL=y
-CONFIG_SGI_PARTITION=y
-CONFIG_SUN_PARTITION=y
-CONFIG_KARMA_PARTITION=y
-CONFIG_EFI_PARTITION=y
+CONFIG_9P_FS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_UTF8=y
+CONFIG_SECURITY=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SECURITY_SELINUX=y
+CONFIG_SECURITY_SELINUX_BOOTPARAM=y
+CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_PRINTK_TIME=y
-# CONFIG_ENABLE_WARN_DEPRECATED is not set
-CONFIG_FRAME_WARN=2048
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_KERNEL=y
+CONFIG_FRAME_WARN=1024
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_WX=y
+CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_SCHEDSTATS=y
-CONFIG_TIMER_STATS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
CONFIG_EARLY_PRINTK_DBGP=y
-CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_DEBUG_STACK_USAGE=y
-# CONFIG_DEBUG_RODATA_TEST is not set
-CONFIG_DEBUG_NX_TEST=m
CONFIG_DEBUG_BOOT_PARAMS=y
-CONFIG_OPTIMIZE_INLINING=y
-CONFIG_KEYS_DEBUG_PROC_KEYS=y
-CONFIG_SECURITY=y
-CONFIG_SECURITY_NETWORK=y
-CONFIG_SECURITY_SELINUX=y
-CONFIG_SECURITY_SELINUX_BOOTPARAM=y
-CONFIG_SECURITY_SELINUX_DISABLE=y
-CONFIG_CRYPTO_AES_586=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
-CONFIG_CRC_T10DIF=y
+CONFIG_UNWINDER_FRAME_POINTER=y
+# CONFIG_64BIT is not set
diff --git a/arch/x86/configs/tiny.config b/arch/x86/configs/tiny.config
new file mode 100644
index 000000000000..66c9e2aab16c
--- /dev/null
+++ b/arch/x86/configs/tiny.config
@@ -0,0 +1,5 @@
+CONFIG_NOHIGHMEM=y
+# CONFIG_HIGHMEM4G is not set
+# CONFIG_HIGHMEM64G is not set
+CONFIG_UNWINDER_GUESS=y
+# CONFIG_UNWINDER_FRAME_POINTER is not set
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index ee01a9d5d4f0..27759236fd60 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -1,48 +1,36 @@
-CONFIG_64BIT=y
-CONFIG_EXPERIMENTAL=y
-# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_WERROR=y
CONFIG_SYSVIPC=y
CONFIG_POSIX_MQUEUE=y
+CONFIG_AUDIT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_BSD_PROCESS_ACCT=y
CONFIG_TASKSTATS=y
CONFIG_TASK_DELAY_ACCT=y
CONFIG_TASK_XACCT=y
CONFIG_TASK_IO_ACCOUNTING=y
-CONFIG_AUDIT=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_CGROUPS=y
-CONFIG_CGROUP_NS=y
+CONFIG_BLK_CGROUP=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_CGROUP_PIDS=y
+CONFIG_CGROUP_RDMA=y
CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_HUGETLB=y
CONFIG_CPUSETS=y
+CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
-CONFIG_RESOURCE_COUNTERS=y
-CONFIG_CGROUP_SCHED=y
-CONFIG_UTS_NS=y
-CONFIG_IPC_NS=y
-CONFIG_USER_NS=y
-CONFIG_PID_NS=y
-CONFIG_NET_NS=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CGROUP_MISC=y
+CONFIG_CGROUP_DEBUG=y
CONFIG_BLK_DEV_INITRD=y
-CONFIG_KALLSYMS_EXTRA_PASS=y
-# CONFIG_COMPAT_BRK is not set
+CONFIG_KALLSYMS_ALL=y
CONFIG_PROFILING=y
-CONFIG_KPROBES=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_MODULE_FORCE_UNLOAD=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
CONFIG_SMP=y
-CONFIG_SPARSE_IRQ=y
-CONFIG_CALGARY_IOMMU=y
-CONFIG_AMD_IOMMU=y
-CONFIG_AMD_IOMMU_STATS=y
-CONFIG_NR_CPUS=64
-CONFIG_SCHED_SMT=y
-CONFIG_PREEMPT_VOLUNTARY=y
+CONFIG_HYPERVISOR_GUEST=y
+CONFIG_PARAVIRT=y
CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS=y
-CONFIG_X86_MCE=y
-CONFIG_MICROCODE=y
CONFIG_MICROCODE_AMD=y
CONFIG_X86_MSR=y
CONFIG_X86_CPUID=y
@@ -50,33 +38,30 @@ CONFIG_NUMA=y
CONFIG_X86_CHECK_BIOS_CORRUPTION=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_EFI=y
+CONFIG_EFI_STUB=y
+CONFIG_EFI_MIXED=y
CONFIG_HZ_1000=y
CONFIG_KEXEC=y
CONFIG_CRASH_DUMP=y
-# CONFIG_COMPAT_VDSO is not set
-CONFIG_PM=y
+CONFIG_HIBERNATION=y
CONFIG_PM_DEBUG=y
CONFIG_PM_TRACE_RTC=y
-CONFIG_HIBERNATION=y
-CONFIG_ACPI_PROCFS=y
CONFIG_ACPI_DOCK=y
-CONFIG_CPU_FREQ=y
-CONFIG_CPU_FREQ_DEBUG=y
-# CONFIG_CPU_FREQ_STAT is not set
+CONFIG_ACPI_BGRT=y
CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE=y
-CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
CONFIG_CPU_FREQ_GOV_ONDEMAND=y
CONFIG_X86_ACPI_CPUFREQ=y
-CONFIG_PCI_MMCONFIG=y
-CONFIG_DMAR=y
-# CONFIG_DMAR_DEFAULT_ON is not set
-CONFIG_PCIEPORTBUS=y
-CONFIG_PCCARD=y
-CONFIG_YENTA=y
-CONFIG_HOTPLUG_PCI=y
-CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
-CONFIG_BINFMT_MISC=y
CONFIG_IA32_EMULATION=y
+CONFIG_KPROBES=y
+CONFIG_JUMP_LABEL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_BLK_CGROUP_IOLATENCY=y
+CONFIG_BLK_CGROUP_IOCOST=y
+CONFIG_BLK_CGROUP_IOPRIO=y
+CONFIG_BINFMT_MISC=y
+# CONFIG_COMPAT_BRK is not set
CONFIG_NET=y
CONFIG_PACKET=y
CONFIG_UNIX=y
@@ -95,16 +80,12 @@ CONFIG_IP_MROUTE=y
CONFIG_IP_PIMSM_V1=y
CONFIG_IP_PIMSM_V2=y
CONFIG_SYN_COOKIES=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
# CONFIG_INET_DIAG is not set
CONFIG_TCP_CONG_ADVANCED=y
# CONFIG_TCP_CONG_BIC is not set
# CONFIG_TCP_CONG_WESTWOOD is not set
# CONFIG_TCP_CONG_HTCP is not set
CONFIG_TCP_MD5SIG=y
-CONFIG_IPV6=y
CONFIG_INET6_AH=y
CONFIG_INET6_ESP=y
CONFIG_NETLABEL=y
@@ -115,6 +96,7 @@ CONFIG_NF_CONNTRACK_FTP=y
CONFIG_NF_CONNTRACK_IRC=y
CONFIG_NF_CONNTRACK_SIP=y
CONFIG_NF_CT_NETLINK=y
+CONFIG_NF_NAT=y
CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=y
CONFIG_NETFILTER_XT_TARGET_NFLOG=y
CONFIG_NETFILTER_XT_TARGET_SECMARK=y
@@ -122,43 +104,44 @@ CONFIG_NETFILTER_XT_TARGET_TCPMSS=y
CONFIG_NETFILTER_XT_MATCH_CONNTRACK=y
CONFIG_NETFILTER_XT_MATCH_POLICY=y
CONFIG_NETFILTER_XT_MATCH_STATE=y
-CONFIG_NF_CONNTRACK_IPV4=y
CONFIG_IP_NF_IPTABLES=y
CONFIG_IP_NF_FILTER=y
CONFIG_IP_NF_TARGET_REJECT=y
-CONFIG_IP_NF_TARGET_LOG=y
-CONFIG_IP_NF_TARGET_ULOG=y
-CONFIG_NF_NAT=y
-CONFIG_IP_NF_TARGET_MASQUERADE=y
+CONFIG_IP_NF_TARGET_MASQUERADE=m
CONFIG_IP_NF_MANGLE=y
-CONFIG_NF_CONNTRACK_IPV6=y
CONFIG_IP6_NF_IPTABLES=y
CONFIG_IP6_NF_MATCH_IPV6HEADER=y
-CONFIG_IP6_NF_TARGET_LOG=y
CONFIG_IP6_NF_FILTER=y
CONFIG_IP6_NF_TARGET_REJECT=y
CONFIG_IP6_NF_MANGLE=y
CONFIG_NET_SCHED=y
+CONFIG_NET_CLS_CGROUP=y
CONFIG_NET_EMATCH=y
CONFIG_NET_CLS_ACT=y
-CONFIG_HAMRADIO=y
+CONFIG_CGROUP_NET_PRIO=y
CONFIG_CFG80211=y
CONFIG_MAC80211=y
CONFIG_MAC80211_LEDS=y
CONFIG_RFKILL=y
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_NET_9P=y
+CONFIG_NET_9P_VIRTIO=y
+CONFIG_PCI=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_HOTPLUG_PCI=y
+CONFIG_PCCARD=y
+CONFIG_YENTA=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
CONFIG_DEBUG_DEVRES=y
CONFIG_CONNECTOR=y
CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=16384
+CONFIG_VIRTIO_BLK=y
CONFIG_BLK_DEV_SD=y
CONFIG_BLK_DEV_SR=y
-CONFIG_BLK_DEV_SR_VENDOR=y
CONFIG_CHR_DEV_SG=y
CONFIG_SCSI_CONSTANTS=y
CONFIG_SCSI_SPI_ATTRS=y
-# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_SCSI_VIRTIO=y
CONFIG_ATA=y
CONFIG_SATA_AHCI=y
CONFIG_ATA_PIIX=y
@@ -173,29 +156,23 @@ CONFIG_DM_ZERO=y
CONFIG_MACINTOSH_DRIVERS=y
CONFIG_MAC_EMUMOUSEBTN=y
CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-CONFIG_NET_VENDOR_3COM=y
+CONFIG_NETCONSOLE=y
+CONFIG_VIRTIO_NET=y
+CONFIG_TIGON3=y
CONFIG_NET_TULIP=y
-CONFIG_NET_PCI=y
-CONFIG_FORCEDETH=y
CONFIG_E100=y
-CONFIG_8139TOO=y
CONFIG_E1000=y
+CONFIG_E1000E=y
CONFIG_SKY2=y
-CONFIG_TIGON3=y
-CONFIG_TR=y
-CONFIG_NET_PCMCIA=y
-CONFIG_FDDI=y
-CONFIG_NETCONSOLE=y
-CONFIG_INPUT_POLLDEV=y
-# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_FORCEDETH=y
+CONFIG_8139TOO=y
+CONFIG_R8169=y
CONFIG_INPUT_EVDEV=y
CONFIG_INPUT_JOYSTICK=y
CONFIG_INPUT_TABLET=y
CONFIG_INPUT_TOUCHSCREEN=y
CONFIG_INPUT_MISC=y
-CONFIG_VT_HW_CONSOLE_BINDING=y
-CONFIG_SERIAL_NONSTANDARD=y
+# CONFIG_LEGACY_PTYS is not set
CONFIG_SERIAL_8250=y
CONFIG_SERIAL_8250_CONSOLE=y
CONFIG_SERIAL_8250_NR_UARTS=32
@@ -204,7 +181,8 @@ CONFIG_SERIAL_8250_MANY_PORTS=y
CONFIG_SERIAL_8250_SHARE_IRQ=y
CONFIG_SERIAL_8250_DETECT_IRQ=y
CONFIG_SERIAL_8250_RSA=y
-# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_NONSTANDARD=y
+CONFIG_VIRTIO_CONSOLE=y
CONFIG_HW_RANDOM=y
# CONFIG_HW_RANDOM_INTEL is not set
# CONFIG_HW_RANDOM_AMD is not set
@@ -218,29 +196,15 @@ CONFIG_AGP_AMD64=y
CONFIG_AGP_INTEL=y
CONFIG_DRM=y
CONFIG_DRM_I915=y
-CONFIG_DRM_I915_KMS=y
-CONFIG_FB_MODE_HELPERS=y
-CONFIG_FB_TILEBLITTING=y
-CONFIG_FB_EFI=y
-CONFIG_BACKLIGHT_LCD_SUPPORT=y
-# CONFIG_LCD_CLASS_DEVICE is not set
-CONFIG_VGACON_SOFT_SCROLLBACK=y
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_DRM_VIRTIO_GPU=y
CONFIG_SOUND=y
CONFIG_SND=y
+CONFIG_SND_HRTIMER=y
CONFIG_SND_SEQUENCER=y
CONFIG_SND_SEQ_DUMMY=y
-CONFIG_SND_MIXER_OSS=y
-CONFIG_SND_PCM_OSS=y
-CONFIG_SND_SEQUENCER_OSS=y
-CONFIG_SND_HRTIMER=y
CONFIG_SND_HDA_INTEL=y
CONFIG_SND_HDA_HWDEP=y
CONFIG_HIDRAW=y
-CONFIG_HID_PID=y
-CONFIG_USB_HIDDEV=y
CONFIG_HID_GYRATION=y
CONFIG_LOGITECH_FF=y
CONFIG_HID_NTRIG=y
@@ -251,29 +215,29 @@ CONFIG_HID_SAMSUNG=y
CONFIG_HID_SONY=y
CONFIG_HID_SUNPLUS=y
CONFIG_HID_TOPSEED=y
+CONFIG_HID_PID=y
+CONFIG_USB_HIDDEV=y
CONFIG_USB=y
-CONFIG_USB_DEBUG=y
CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-CONFIG_USB_DEVICEFS=y
-# CONFIG_USB_DEVICE_CLASS is not set
CONFIG_USB_MON=y
+CONFIG_USB_XHCI_HCD=y
CONFIG_USB_EHCI_HCD=y
-# CONFIG_USB_EHCI_TT_NEWSCHED is not set
CONFIG_USB_OHCI_HCD=y
CONFIG_USB_UHCI_HCD=y
CONFIG_USB_PRINTER=y
CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
-CONFIG_EDAC=y
CONFIG_RTC_CLASS=y
# CONFIG_RTC_HCTOSYS is not set
CONFIG_DMADEVICES=y
+CONFIG_VIRTIO_PCI=y
+CONFIG_VIRTIO_INPUT=y
CONFIG_EEEPC_LAPTOP=y
-CONFIG_EFI_VARS=y
-CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_EXT3_FS_POSIX_ACL=y
-CONFIG_EXT3_FS_SECURITY=y
+CONFIG_AMD_IOMMU=y
+CONFIG_INTEL_IOMMU=y
+# CONFIG_INTEL_IOMMU_DEFAULT_ON is not set
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
CONFIG_QUOTA=y
CONFIG_QUOTA_NETLINK_INTERFACE=y
# CONFIG_PRINT_QUOTA_WARNING is not set
@@ -285,55 +249,31 @@ CONFIG_ZISOFS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_PROC_KCORE=y
-CONFIG_TMPFS=y
CONFIG_TMPFS_POSIX_ACL=y
CONFIG_HUGETLBFS=y
CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
CONFIG_NFS_V3_ACL=y
CONFIG_NFS_V4=y
CONFIG_ROOT_NFS=y
-CONFIG_PARTITION_ADVANCED=y
-CONFIG_OSF_PARTITION=y
-CONFIG_AMIGA_PARTITION=y
-CONFIG_MAC_PARTITION=y
-CONFIG_BSD_DISKLABEL=y
-CONFIG_MINIX_SUBPARTITION=y
-CONFIG_SOLARIS_X86_PARTITION=y
-CONFIG_UNIXWARE_DISKLABEL=y
-CONFIG_SGI_PARTITION=y
-CONFIG_SUN_PARTITION=y
-CONFIG_KARMA_PARTITION=y
-CONFIG_EFI_PARTITION=y
+CONFIG_9P_FS=y
CONFIG_NLS_DEFAULT="utf8"
CONFIG_NLS_CODEPAGE_437=y
CONFIG_NLS_ASCII=y
CONFIG_NLS_ISO8859_1=y
CONFIG_NLS_UTF8=y
+CONFIG_SECURITY=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SECURITY_SELINUX=y
+CONFIG_SECURITY_SELINUX_BOOTPARAM=y
+CONFIG_SECURITY_SELINUX_DISABLE=y
CONFIG_PRINTK_TIME=y
-# CONFIG_ENABLE_WARN_DEPRECATED is not set
-CONFIG_MAGIC_SYSRQ=y
-# CONFIG_UNUSED_SYMBOLS is not set
CONFIG_DEBUG_KERNEL=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_WX=y
+CONFIG_DEBUG_STACK_USAGE=y
# CONFIG_SCHED_DEBUG is not set
CONFIG_SCHEDSTATS=y
-CONFIG_TIMER_STATS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_SYSCTL_SYSCALL_CHECK=y
CONFIG_BLK_DEV_IO_TRACE=y
CONFIG_PROVIDE_OHCI1394_DMA_INIT=y
CONFIG_EARLY_PRINTK_DBGP=y
-CONFIG_DEBUG_STACKOVERFLOW=y
-CONFIG_DEBUG_STACK_USAGE=y
-# CONFIG_DEBUG_RODATA_TEST is not set
-CONFIG_DEBUG_NX_TEST=m
CONFIG_DEBUG_BOOT_PARAMS=y
-CONFIG_OPTIMIZE_INLINING=y
-CONFIG_KEYS_DEBUG_PROC_KEYS=y
-CONFIG_SECURITY=y
-CONFIG_SECURITY_NETWORK=y
-CONFIG_SECURITY_SELINUX=y
-CONFIG_SECURITY_SELINUX_BOOTPARAM=y
-CONFIG_SECURITY_SELINUX_DISABLE=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
-CONFIG_CRC_T10DIF=y
diff --git a/arch/x86/configs/xen.config b/arch/x86/configs/xen.config
new file mode 100644
index 000000000000..581296255b39
--- /dev/null
+++ b/arch/x86/configs/xen.config
@@ -0,0 +1,27 @@
+# global x86 required specific stuff
+# On 32-bit HIGHMEM4G is not allowed
+CONFIG_HIGHMEM64G=y
+CONFIG_64BIT=y
+
+# These enable us to allow some of the
+# not so generic stuff below
+CONFIG_HYPERVISOR_GUEST=y
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_X86_MCE=y
+CONFIG_ACPI_PROCESSOR=y
+CONFIG_CPU_FREQ=y
+
+# x86 xen specific config options
+CONFIG_XEN_PVH=y
+CONFIG_XEN_SAVE_RESTORE=y
+# CONFIG_XEN_DEBUG_FS is not set
+CONFIG_XEN_MCE_LOG=y
+CONFIG_XEN_ACPI_PROCESSOR=m
+# x86 specific backend drivers
+CONFIG_XEN_PCIDEV_BACKEND=m
+# x86 specific frontend drivers
+CONFIG_XEN_PCIDEV_FRONTEND=m
+# depends on MEMORY_HOTPLUG, arm64 doesn't enable this yet,
+# move to generic config if it ever does.
+CONFIG_XEN_BALLOON_MEMORY_HOTPLUG=y
diff --git a/arch/x86/crypto/.gitignore b/arch/x86/crypto/.gitignore
new file mode 100644
index 000000000000..580c839bb177
--- /dev/null
+++ b/arch/x86/crypto/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+poly1305-x86_64-cryptogams.S
diff --git a/arch/x86/crypto/Kconfig b/arch/x86/crypto/Kconfig
new file mode 100644
index 000000000000..9bbfd01cfa2f
--- /dev/null
+++ b/arch/x86/crypto/Kconfig
@@ -0,0 +1,522 @@
+# SPDX-License-Identifier: GPL-2.0
+
+menu "Accelerated Cryptographic Algorithms for CPU (x86)"
+
+config CRYPTO_CURVE25519_X86
+ tristate "Public key crypto: Curve25519 (ADX)"
+ depends on X86 && 64BIT
+ select CRYPTO_LIB_CURVE25519_GENERIC
+ select CRYPTO_ARCH_HAVE_LIB_CURVE25519
+ help
+ Curve25519 algorithm
+
+ Architecture: x86_64 using:
+ - ADX (large integer arithmetic)
+
+config CRYPTO_AES_NI_INTEL
+ tristate "Ciphers: AES, modes: ECB, CBC, CTS, CTR, XTR, XTS, GCM (AES-NI)"
+ depends on X86
+ select CRYPTO_AEAD
+ select CRYPTO_LIB_AES
+ select CRYPTO_ALGAPI
+ select CRYPTO_SKCIPHER
+ select CRYPTO_SIMD
+ help
+ Block cipher: AES cipher algorithms
+ AEAD cipher: AES with GCM
+ Length-preserving ciphers: AES with ECB, CBC, CTS, CTR, XTR, XTS
+
+ Architecture: x86 (32-bit and 64-bit) using:
+ - AES-NI (AES new instructions)
+
+config CRYPTO_BLOWFISH_X86_64
+ tristate "Ciphers: Blowfish, modes: ECB, CBC"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_BLOWFISH_COMMON
+ imply CRYPTO_CTR
+ help
+ Block cipher: Blowfish cipher algorithm
+ Length-preserving ciphers: Blowfish with ECB and CBC modes
+
+ Architecture: x86_64
+
+config CRYPTO_CAMELLIA_X86_64
+ tristate "Ciphers: Camellia with modes: ECB, CBC"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ imply CRYPTO_CTR
+ help
+ Block cipher: Camellia cipher algorithms
+ Length-preserving ciphers: Camellia with ECB and CBC modes
+
+ Architecture: x86_64
+
+config CRYPTO_CAMELLIA_AESNI_AVX_X86_64
+ tristate "Ciphers: Camellia with modes: ECB, CBC (AES-NI/AVX)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_CAMELLIA_X86_64
+ select CRYPTO_SIMD
+ imply CRYPTO_XTS
+ help
+ Length-preserving ciphers: Camellia with ECB and CBC modes
+
+ Architecture: x86_64 using:
+ - AES-NI (AES New Instructions)
+ - AVX (Advanced Vector Extensions)
+
+config CRYPTO_CAMELLIA_AESNI_AVX2_X86_64
+ tristate "Ciphers: Camellia with modes: ECB, CBC (AES-NI/AVX2)"
+ depends on X86 && 64BIT
+ select CRYPTO_CAMELLIA_AESNI_AVX_X86_64
+ help
+ Length-preserving ciphers: Camellia with ECB and CBC modes
+
+ Architecture: x86_64 using:
+ - AES-NI (AES New Instructions)
+ - AVX2 (Advanced Vector Extensions 2)
+
+config CRYPTO_CAST5_AVX_X86_64
+ tristate "Ciphers: CAST5 with modes: ECB, CBC (AVX)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_CAST5
+ select CRYPTO_CAST_COMMON
+ select CRYPTO_SIMD
+ imply CRYPTO_CTR
+ help
+ Length-preserving ciphers: CAST5 (CAST-128) cipher algorithm
+ (RFC2144) with ECB and CBC modes
+
+ Architecture: x86_64 using:
+ - AVX (Advanced Vector Extensions)
+
+ Processes 16 blocks in parallel.
+
+config CRYPTO_CAST6_AVX_X86_64
+ tristate "Ciphers: CAST6 with modes: ECB, CBC (AVX)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_CAST6
+ select CRYPTO_CAST_COMMON
+ select CRYPTO_SIMD
+ imply CRYPTO_XTS
+ imply CRYPTO_CTR
+ help
+ Length-preserving ciphers: CAST6 (CAST-256) cipher algorithm
+ (RFC2612) with ECB and CBC modes
+
+ Architecture: x86_64 using:
+ - AVX (Advanced Vector Extensions)
+
+ Processes eight blocks in parallel.
+
+config CRYPTO_DES3_EDE_X86_64
+ tristate "Ciphers: Triple DES EDE with modes: ECB, CBC"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_LIB_DES
+ imply CRYPTO_CTR
+ help
+ Block cipher: Triple DES EDE (FIPS 46-3) cipher algorithm
+ Length-preserving ciphers: Triple DES EDE with ECB and CBC modes
+
+ Architecture: x86_64
+
+ Processes one or three blocks in parallel.
+
+config CRYPTO_SERPENT_SSE2_X86_64
+ tristate "Ciphers: Serpent with modes: ECB, CBC (SSE2)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_SERPENT
+ select CRYPTO_SIMD
+ imply CRYPTO_CTR
+ help
+ Length-preserving ciphers: Serpent cipher algorithm
+ with ECB and CBC modes
+
+ Architecture: x86_64 using:
+ - SSE2 (Streaming SIMD Extensions 2)
+
+ Processes eight blocks in parallel.
+
+config CRYPTO_SERPENT_SSE2_586
+ tristate "Ciphers: Serpent with modes: ECB, CBC (32-bit with SSE2)"
+ depends on X86 && !64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_SERPENT
+ select CRYPTO_SIMD
+ imply CRYPTO_CTR
+ help
+ Length-preserving ciphers: Serpent cipher algorithm
+ with ECB and CBC modes
+
+ Architecture: x86 (32-bit) using:
+ - SSE2 (Streaming SIMD Extensions 2)
+
+ Processes four blocks in parallel.
+
+config CRYPTO_SERPENT_AVX_X86_64
+ tristate "Ciphers: Serpent with modes: ECB, CBC (AVX)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_SERPENT
+ select CRYPTO_SIMD
+ imply CRYPTO_XTS
+ imply CRYPTO_CTR
+ help
+ Length-preserving ciphers: Serpent cipher algorithm
+ with ECB and CBC modes
+
+ Architecture: x86_64 using:
+ - AVX (Advanced Vector Extensions)
+
+ Processes eight blocks in parallel.
+
+config CRYPTO_SERPENT_AVX2_X86_64
+ tristate "Ciphers: Serpent with modes: ECB, CBC (AVX2)"
+ depends on X86 && 64BIT
+ select CRYPTO_SERPENT_AVX_X86_64
+ help
+ Length-preserving ciphers: Serpent cipher algorithm
+ with ECB and CBC modes
+
+ Architecture: x86_64 using:
+ - AVX2 (Advanced Vector Extensions 2)
+
+ Processes 16 blocks in parallel.
+
+config CRYPTO_SM4_AESNI_AVX_X86_64
+ tristate "Ciphers: SM4 with modes: ECB, CBC, CFB, CTR (AES-NI/AVX)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_SIMD
+ select CRYPTO_ALGAPI
+ select CRYPTO_SM4
+ help
+ Length-preserving ciphers: SM4 cipher algorithms
+ (OSCCA GB/T 32907-2016) with ECB, CBC, CFB, and CTR modes
+
+ Architecture: x86_64 using:
+ - AES-NI (AES New Instructions)
+ - AVX (Advanced Vector Extensions)
+
+ Through two affine transforms,
+ we can use the AES S-Box to simulate the SM4 S-Box to achieve the
+ effect of instruction acceleration.
+
+ If unsure, say N.
+
+config CRYPTO_SM4_AESNI_AVX2_X86_64
+ tristate "Ciphers: SM4 with modes: ECB, CBC, CFB, CTR (AES-NI/AVX2)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_SIMD
+ select CRYPTO_ALGAPI
+ select CRYPTO_SM4
+ select CRYPTO_SM4_AESNI_AVX_X86_64
+ help
+ Length-preserving ciphers: SM4 cipher algorithms
+ (OSCCA GB/T 32907-2016) with ECB, CBC, CFB, and CTR modes
+
+ Architecture: x86_64 using:
+ - AES-NI (AES New Instructions)
+ - AVX2 (Advanced Vector Extensions 2)
+
+ Through two affine transforms,
+ we can use the AES S-Box to simulate the SM4 S-Box to achieve the
+ effect of instruction acceleration.
+
+ If unsure, say N.
+
+config CRYPTO_TWOFISH_586
+ tristate "Ciphers: Twofish (32-bit)"
+ depends on (X86 || UML_X86) && !64BIT
+ select CRYPTO_ALGAPI
+ select CRYPTO_TWOFISH_COMMON
+ imply CRYPTO_CTR
+ help
+ Block cipher: Twofish cipher algorithm
+
+ Architecture: x86 (32-bit)
+
+config CRYPTO_TWOFISH_X86_64
+ tristate "Ciphers: Twofish"
+ depends on (X86 || UML_X86) && 64BIT
+ select CRYPTO_ALGAPI
+ select CRYPTO_TWOFISH_COMMON
+ imply CRYPTO_CTR
+ help
+ Block cipher: Twofish cipher algorithm
+
+ Architecture: x86_64
+
+config CRYPTO_TWOFISH_X86_64_3WAY
+ tristate "Ciphers: Twofish with modes: ECB, CBC (3-way parallel)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_TWOFISH_COMMON
+ select CRYPTO_TWOFISH_X86_64
+ help
+ Length-preserving cipher: Twofish cipher algorithm
+ with ECB and CBC modes
+
+ Architecture: x86_64
+
+ Processes three blocks in parallel, better utilizing resources of
+ out-of-order CPUs.
+
+config CRYPTO_TWOFISH_AVX_X86_64
+ tristate "Ciphers: Twofish with modes: ECB, CBC (AVX)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_SIMD
+ select CRYPTO_TWOFISH_COMMON
+ select CRYPTO_TWOFISH_X86_64
+ select CRYPTO_TWOFISH_X86_64_3WAY
+ imply CRYPTO_XTS
+ help
+ Length-preserving cipher: Twofish cipher algorithm
+ with ECB and CBC modes
+
+ Architecture: x86_64 using:
+ - AVX (Advanced Vector Extensions)
+
+ Processes eight blocks in parallel.
+
+config CRYPTO_ARIA_AESNI_AVX_X86_64
+ tristate "Ciphers: ARIA with modes: ECB, CTR (AES-NI/AVX/GFNI)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_SIMD
+ select CRYPTO_ALGAPI
+ select CRYPTO_ARIA
+ help
+ Length-preserving cipher: ARIA cipher algorithms
+ (RFC 5794) with ECB and CTR modes
+
+ Architecture: x86_64 using:
+ - AES-NI (AES New Instructions)
+ - AVX (Advanced Vector Extensions)
+ - GFNI (Galois Field New Instructions)
+
+ Processes 16 blocks in parallel.
+
+config CRYPTO_ARIA_AESNI_AVX2_X86_64
+ tristate "Ciphers: ARIA with modes: ECB, CTR (AES-NI/AVX2/GFNI)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_SIMD
+ select CRYPTO_ALGAPI
+ select CRYPTO_ARIA
+ select CRYPTO_ARIA_AESNI_AVX_X86_64
+ help
+ Length-preserving cipher: ARIA cipher algorithms
+ (RFC 5794) with ECB and CTR modes
+
+ Architecture: x86_64 using:
+ - AES-NI (AES New Instructions)
+ - AVX2 (Advanced Vector Extensions)
+ - GFNI (Galois Field New Instructions)
+
+ Processes 32 blocks in parallel.
+
+config CRYPTO_ARIA_GFNI_AVX512_X86_64
+ tristate "Ciphers: ARIA with modes: ECB, CTR (AVX512/GFNI)"
+ depends on X86 && 64BIT && AS_AVX512 && AS_GFNI
+ select CRYPTO_SKCIPHER
+ select CRYPTO_SIMD
+ select CRYPTO_ALGAPI
+ select CRYPTO_ARIA
+ select CRYPTO_ARIA_AESNI_AVX_X86_64
+ select CRYPTO_ARIA_AESNI_AVX2_X86_64
+ help
+ Length-preserving cipher: ARIA cipher algorithms
+ (RFC 5794) with ECB and CTR modes
+
+ Architecture: x86_64 using:
+ - AVX512 (Advanced Vector Extensions)
+ - GFNI (Galois Field New Instructions)
+
+ Processes 64 blocks in parallel.
+
+config CRYPTO_CHACHA20_X86_64
+ tristate "Ciphers: ChaCha20, XChaCha20, XChaCha12 (SSSE3/AVX2/AVX-512VL)"
+ depends on X86 && 64BIT
+ select CRYPTO_SKCIPHER
+ select CRYPTO_LIB_CHACHA_GENERIC
+ select CRYPTO_ARCH_HAVE_LIB_CHACHA
+ help
+ Length-preserving ciphers: ChaCha20, XChaCha20, and XChaCha12
+ stream cipher algorithms
+
+ Architecture: x86_64 using:
+ - SSSE3 (Supplemental SSE3)
+ - AVX2 (Advanced Vector Extensions 2)
+ - AVX-512VL (Advanced Vector Extensions-512VL)
+
+config CRYPTO_AEGIS128_AESNI_SSE2
+ tristate "AEAD ciphers: AEGIS-128 (AES-NI/SSE2)"
+ depends on X86 && 64BIT
+ select CRYPTO_AEAD
+ select CRYPTO_SIMD
+ help
+ AEGIS-128 AEAD algorithm
+
+ Architecture: x86_64 using:
+ - AES-NI (AES New Instructions)
+ - SSE2 (Streaming SIMD Extensions 2)
+
+config CRYPTO_NHPOLY1305_SSE2
+ tristate "Hash functions: NHPoly1305 (SSE2)"
+ depends on X86 && 64BIT
+ select CRYPTO_NHPOLY1305
+ help
+ NHPoly1305 hash function for Adiantum
+
+ Architecture: x86_64 using:
+ - SSE2 (Streaming SIMD Extensions 2)
+
+config CRYPTO_NHPOLY1305_AVX2
+ tristate "Hash functions: NHPoly1305 (AVX2)"
+ depends on X86 && 64BIT
+ select CRYPTO_NHPOLY1305
+ help
+ NHPoly1305 hash function for Adiantum
+
+ Architecture: x86_64 using:
+ - AVX2 (Advanced Vector Extensions 2)
+
+config CRYPTO_BLAKE2S_X86
+ bool "Hash functions: BLAKE2s (SSSE3/AVX-512)"
+ depends on X86 && 64BIT
+ select CRYPTO_LIB_BLAKE2S_GENERIC
+ select CRYPTO_ARCH_HAVE_LIB_BLAKE2S
+ help
+ BLAKE2s cryptographic hash function (RFC 7693)
+
+ Architecture: x86_64 using:
+ - SSSE3 (Supplemental SSE3)
+ - AVX-512 (Advanced Vector Extensions-512)
+
+config CRYPTO_POLYVAL_CLMUL_NI
+ tristate "Hash functions: POLYVAL (CLMUL-NI)"
+ depends on X86 && 64BIT
+ select CRYPTO_POLYVAL
+ help
+ POLYVAL hash function for HCTR2
+
+ Architecture: x86_64 using:
+ - CLMUL-NI (carry-less multiplication new instructions)
+
+config CRYPTO_POLY1305_X86_64
+ tristate "Hash functions: Poly1305 (SSE2/AVX2)"
+ depends on X86 && 64BIT
+ select CRYPTO_LIB_POLY1305_GENERIC
+ select CRYPTO_ARCH_HAVE_LIB_POLY1305
+ help
+ Poly1305 authenticator algorithm (RFC7539)
+
+ Architecture: x86_64 using:
+ - SSE2 (Streaming SIMD Extensions 2)
+ - AVX2 (Advanced Vector Extensions 2)
+
+config CRYPTO_SHA1_SSSE3
+ tristate "Hash functions: SHA-1 (SSSE3/AVX/AVX2/SHA-NI)"
+ depends on X86 && 64BIT
+ select CRYPTO_SHA1
+ select CRYPTO_HASH
+ help
+ SHA-1 secure hash algorithm (FIPS 180)
+
+ Architecture: x86_64 using:
+ - SSSE3 (Supplemental SSE3)
+ - AVX (Advanced Vector Extensions)
+ - AVX2 (Advanced Vector Extensions 2)
+ - SHA-NI (SHA Extensions New Instructions)
+
+config CRYPTO_SHA256_SSSE3
+ tristate "Hash functions: SHA-224 and SHA-256 (SSSE3/AVX/AVX2/SHA-NI)"
+ depends on X86 && 64BIT
+ select CRYPTO_SHA256
+ select CRYPTO_HASH
+ help
+ SHA-224 and SHA-256 secure hash algorithms (FIPS 180)
+
+ Architecture: x86_64 using:
+ - SSSE3 (Supplemental SSE3)
+ - AVX (Advanced Vector Extensions)
+ - AVX2 (Advanced Vector Extensions 2)
+ - SHA-NI (SHA Extensions New Instructions)
+
+config CRYPTO_SHA512_SSSE3
+ tristate "Hash functions: SHA-384 and SHA-512 (SSSE3/AVX/AVX2)"
+ depends on X86 && 64BIT
+ select CRYPTO_SHA512
+ select CRYPTO_HASH
+ help
+ SHA-384 and SHA-512 secure hash algorithms (FIPS 180)
+
+ Architecture: x86_64 using:
+ - SSSE3 (Supplemental SSE3)
+ - AVX (Advanced Vector Extensions)
+ - AVX2 (Advanced Vector Extensions 2)
+
+config CRYPTO_SM3_AVX_X86_64
+ tristate "Hash functions: SM3 (AVX)"
+ depends on X86 && 64BIT
+ select CRYPTO_HASH
+ select CRYPTO_SM3
+ help
+ SM3 secure hash function as defined by OSCCA GM/T 0004-2012 SM3
+
+ Architecture: x86_64 using:
+ - AVX (Advanced Vector Extensions)
+
+ If unsure, say N.
+
+config CRYPTO_GHASH_CLMUL_NI_INTEL
+ tristate "Hash functions: GHASH (CLMUL-NI)"
+ depends on X86 && 64BIT
+ select CRYPTO_CRYPTD
+ help
+ GCM GHASH hash function (NIST SP800-38D)
+
+ Architecture: x86_64 using:
+ - CLMUL-NI (carry-less multiplication new instructions)
+
+config CRYPTO_CRC32C_INTEL
+ tristate "CRC32c (SSE4.2/PCLMULQDQ)"
+ depends on X86
+ select CRYPTO_HASH
+ help
+ CRC32c CRC algorithm with the iSCSI polynomial (RFC 3385 and RFC 3720)
+
+ Architecture: x86 (32-bit and 64-bit) using:
+ - SSE4.2 (Streaming SIMD Extensions 4.2) CRC32 instruction
+ - PCLMULQDQ (carry-less multiplication)
+
+config CRYPTO_CRC32_PCLMUL
+ tristate "CRC32 (PCLMULQDQ)"
+ depends on X86
+ select CRYPTO_HASH
+ select CRC32
+ help
+ CRC32 CRC algorithm (IEEE 802.3)
+
+ Architecture: x86 (32-bit and 64-bit) using:
+ - PCLMULQDQ (carry-less multiplication)
+
+config CRYPTO_CRCT10DIF_PCLMUL
+ tristate "CRCT10DIF (PCLMULQDQ)"
+ depends on X86 && 64BIT && CRC_T10DIF
+ select CRYPTO_HASH
+ help
+ CRC16 CRC algorithm used for the T10 (SCSI) Data Integrity Field (DIF)
+
+ Architecture: x86_64 using:
+ - PCLMULQDQ (carry-less multiplication)
+
+endmenu
diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 1a58ad89fdf7..9aa46093c91b 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -1,29 +1,118 @@
+# SPDX-License-Identifier: GPL-2.0
#
-# Arch-specific CryptoAPI modules.
-#
-
-obj-$(CONFIG_CRYPTO_FPU) += fpu.o
+# x86 crypto algorithms
-obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
obj-$(CONFIG_CRYPTO_TWOFISH_586) += twofish-i586.o
-obj-$(CONFIG_CRYPTO_SALSA20_586) += salsa20-i586.o
-
-obj-$(CONFIG_CRYPTO_AES_X86_64) += aes-x86_64.o
+twofish-i586-y := twofish-i586-asm_32.o twofish_glue.o
obj-$(CONFIG_CRYPTO_TWOFISH_X86_64) += twofish-x86_64.o
-obj-$(CONFIG_CRYPTO_SALSA20_X86_64) += salsa20-x86_64.o
+twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o
+obj-$(CONFIG_CRYPTO_TWOFISH_X86_64_3WAY) += twofish-x86_64-3way.o
+twofish-x86_64-3way-y := twofish-x86_64-asm_64-3way.o twofish_glue_3way.o
+obj-$(CONFIG_CRYPTO_TWOFISH_AVX_X86_64) += twofish-avx-x86_64.o
+twofish-avx-x86_64-y := twofish-avx-x86_64-asm_64.o twofish_avx_glue.o
+
+obj-$(CONFIG_CRYPTO_SERPENT_SSE2_586) += serpent-sse2-i586.o
+serpent-sse2-i586-y := serpent-sse2-i586-asm_32.o serpent_sse2_glue.o
+obj-$(CONFIG_CRYPTO_SERPENT_SSE2_X86_64) += serpent-sse2-x86_64.o
+serpent-sse2-x86_64-y := serpent-sse2-x86_64-asm_64.o serpent_sse2_glue.o
+obj-$(CONFIG_CRYPTO_SERPENT_AVX_X86_64) += serpent-avx-x86_64.o
+serpent-avx-x86_64-y := serpent-avx-x86_64-asm_64.o serpent_avx_glue.o
+obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o
+serpent-avx2-y := serpent-avx2-asm_64.o serpent_avx2_glue.o
+
+obj-$(CONFIG_CRYPTO_DES3_EDE_X86_64) += des3_ede-x86_64.o
+des3_ede-x86_64-y := des3_ede-asm_64.o des3_ede_glue.o
+
+obj-$(CONFIG_CRYPTO_CAMELLIA_X86_64) += camellia-x86_64.o
+camellia-x86_64-y := camellia-x86_64-asm_64.o camellia_glue.o
+obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX_X86_64) += camellia-aesni-avx-x86_64.o
+camellia-aesni-avx-x86_64-y := camellia-aesni-avx-asm_64.o camellia_aesni_avx_glue.o
+obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o
+camellia-aesni-avx2-y := camellia-aesni-avx2-asm_64.o camellia_aesni_avx2_glue.o
+
+obj-$(CONFIG_CRYPTO_BLOWFISH_X86_64) += blowfish-x86_64.o
+blowfish-x86_64-y := blowfish-x86_64-asm_64.o blowfish_glue.o
+
+obj-$(CONFIG_CRYPTO_CAST5_AVX_X86_64) += cast5-avx-x86_64.o
+cast5-avx-x86_64-y := cast5-avx-x86_64-asm_64.o cast5_avx_glue.o
+
+obj-$(CONFIG_CRYPTO_CAST6_AVX_X86_64) += cast6-avx-x86_64.o
+cast6-avx-x86_64-y := cast6-avx-x86_64-asm_64.o cast6_avx_glue.o
+
+obj-$(CONFIG_CRYPTO_AEGIS128_AESNI_SSE2) += aegis128-aesni.o
+aegis128-aesni-y := aegis128-aesni-asm.o aegis128-aesni-glue.o
+
+obj-$(CONFIG_CRYPTO_CHACHA20_X86_64) += chacha-x86_64.o
+chacha-x86_64-y := chacha-avx2-x86_64.o chacha-ssse3-x86_64.o chacha_glue.o
+chacha-x86_64-$(CONFIG_AS_AVX512) += chacha-avx512vl-x86_64.o
+
obj-$(CONFIG_CRYPTO_AES_NI_INTEL) += aesni-intel.o
+aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o
+aesni-intel-$(CONFIG_64BIT) += aesni-intel_avx-x86_64.o aes_ctrby8_avx-x86_64.o
+
+obj-$(CONFIG_CRYPTO_SHA1_SSSE3) += sha1-ssse3.o
+sha1-ssse3-y := sha1_avx2_x86_64_asm.o sha1_ssse3_asm.o sha1_ssse3_glue.o
+sha1-ssse3-$(CONFIG_AS_SHA1_NI) += sha1_ni_asm.o
+
+obj-$(CONFIG_CRYPTO_SHA256_SSSE3) += sha256-ssse3.o
+sha256-ssse3-y := sha256-ssse3-asm.o sha256-avx-asm.o sha256-avx2-asm.o sha256_ssse3_glue.o
+sha256-ssse3-$(CONFIG_AS_SHA256_NI) += sha256_ni_asm.o
+
+obj-$(CONFIG_CRYPTO_SHA512_SSSE3) += sha512-ssse3.o
+sha512-ssse3-y := sha512-ssse3-asm.o sha512-avx-asm.o sha512-avx2-asm.o sha512_ssse3_glue.o
+
+obj-$(CONFIG_CRYPTO_BLAKE2S_X86) += libblake2s-x86_64.o
+libblake2s-x86_64-y := blake2s-core.o blake2s-glue.o
+
obj-$(CONFIG_CRYPTO_GHASH_CLMUL_NI_INTEL) += ghash-clmulni-intel.o
+ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o
+
+obj-$(CONFIG_CRYPTO_POLYVAL_CLMUL_NI) += polyval-clmulni.o
+polyval-clmulni-y := polyval-clmulni_asm.o polyval-clmulni_glue.o
obj-$(CONFIG_CRYPTO_CRC32C_INTEL) += crc32c-intel.o
+crc32c-intel-y := crc32c-intel_glue.o
+crc32c-intel-$(CONFIG_64BIT) += crc32c-pcl-intel-asm_64.o
-aes-i586-y := aes-i586-asm_32.o aes_glue.o
-twofish-i586-y := twofish-i586-asm_32.o twofish_glue.o
-salsa20-i586-y := salsa20-i586-asm_32.o salsa20_glue.o
+obj-$(CONFIG_CRYPTO_CRC32_PCLMUL) += crc32-pclmul.o
+crc32-pclmul-y := crc32-pclmul_asm.o crc32-pclmul_glue.o
-aes-x86_64-y := aes-x86_64-asm_64.o aes_glue.o
-twofish-x86_64-y := twofish-x86_64-asm_64.o twofish_glue.o
-salsa20-x86_64-y := salsa20-x86_64-asm_64.o salsa20_glue.o
+obj-$(CONFIG_CRYPTO_CRCT10DIF_PCLMUL) += crct10dif-pclmul.o
+crct10dif-pclmul-y := crct10dif-pcl-asm_64.o crct10dif-pclmul_glue.o
-aesni-intel-y := aesni-intel_asm.o aesni-intel_glue.o
+obj-$(CONFIG_CRYPTO_POLY1305_X86_64) += poly1305-x86_64.o
+poly1305-x86_64-y := poly1305-x86_64-cryptogams.o poly1305_glue.o
+targets += poly1305-x86_64-cryptogams.S
-ghash-clmulni-intel-y := ghash-clmulni-intel_asm.o ghash-clmulni-intel_glue.o
+obj-$(CONFIG_CRYPTO_NHPOLY1305_SSE2) += nhpoly1305-sse2.o
+nhpoly1305-sse2-y := nh-sse2-x86_64.o nhpoly1305-sse2-glue.o
+obj-$(CONFIG_CRYPTO_NHPOLY1305_AVX2) += nhpoly1305-avx2.o
+nhpoly1305-avx2-y := nh-avx2-x86_64.o nhpoly1305-avx2-glue.o
+
+obj-$(CONFIG_CRYPTO_CURVE25519_X86) += curve25519-x86_64.o
+
+obj-$(CONFIG_CRYPTO_SM3_AVX_X86_64) += sm3-avx-x86_64.o
+sm3-avx-x86_64-y := sm3-avx-asm_64.o sm3_avx_glue.o
+
+obj-$(CONFIG_CRYPTO_SM4_AESNI_AVX_X86_64) += sm4-aesni-avx-x86_64.o
+sm4-aesni-avx-x86_64-y := sm4-aesni-avx-asm_64.o sm4_aesni_avx_glue.o
+
+obj-$(CONFIG_CRYPTO_SM4_AESNI_AVX2_X86_64) += sm4-aesni-avx2-x86_64.o
+sm4-aesni-avx2-x86_64-y := sm4-aesni-avx2-asm_64.o sm4_aesni_avx2_glue.o
+
+obj-$(CONFIG_CRYPTO_ARIA_AESNI_AVX_X86_64) += aria-aesni-avx-x86_64.o
+aria-aesni-avx-x86_64-y := aria-aesni-avx-asm_64.o aria_aesni_avx_glue.o
+
+obj-$(CONFIG_CRYPTO_ARIA_AESNI_AVX2_X86_64) += aria-aesni-avx2-x86_64.o
+aria-aesni-avx2-x86_64-y := aria-aesni-avx2-asm_64.o aria_aesni_avx2_glue.o
+
+obj-$(CONFIG_CRYPTO_ARIA_GFNI_AVX512_X86_64) += aria-gfni-avx512-x86_64.o
+aria-gfni-avx512-x86_64-y := aria-gfni-avx512-asm_64.o aria_gfni_avx512_glue.o
+
+quiet_cmd_perlasm = PERLASM $@
+ cmd_perlasm = $(PERL) $< > $@
+$(obj)/%.S: $(src)/%.pl FORCE
+ $(call if_changed,perlasm)
+
+# Disable GCOV in odd or sensitive code
+GCOV_PROFILE_curve25519-x86_64.o := n
diff --git a/arch/x86/crypto/aegis128-aesni-asm.S b/arch/x86/crypto/aegis128-aesni-asm.S
new file mode 100644
index 000000000000..ad7f4c891625
--- /dev/null
+++ b/arch/x86/crypto/aegis128-aesni-asm.S
@@ -0,0 +1,748 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AES-NI + SSE2 implementation of AEGIS-128
+ *
+ * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com>
+ * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+#include <asm/frame.h>
+
+#define STATE0 %xmm0
+#define STATE1 %xmm1
+#define STATE2 %xmm2
+#define STATE3 %xmm3
+#define STATE4 %xmm4
+#define KEY %xmm5
+#define MSG %xmm5
+#define T0 %xmm6
+#define T1 %xmm7
+
+#define STATEP %rdi
+#define LEN %rsi
+#define SRC %rdx
+#define DST %rcx
+
+.section .rodata.cst16.aegis128_const, "aM", @progbits, 32
+.align 16
+.Laegis128_const_0:
+ .byte 0x00, 0x01, 0x01, 0x02, 0x03, 0x05, 0x08, 0x0d
+ .byte 0x15, 0x22, 0x37, 0x59, 0x90, 0xe9, 0x79, 0x62
+.Laegis128_const_1:
+ .byte 0xdb, 0x3d, 0x18, 0x55, 0x6d, 0xc2, 0x2f, 0xf1
+ .byte 0x20, 0x11, 0x31, 0x42, 0x73, 0xb5, 0x28, 0xdd
+
+.section .rodata.cst16.aegis128_counter, "aM", @progbits, 16
+.align 16
+.Laegis128_counter:
+ .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
+ .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
+
+.text
+
+/*
+ * aegis128_update
+ * input:
+ * STATE[0-4] - input state
+ * output:
+ * STATE[0-4] - output state (shifted positions)
+ * changed:
+ * T0
+ */
+.macro aegis128_update
+ movdqa STATE4, T0
+ aesenc STATE0, STATE4
+ aesenc STATE1, STATE0
+ aesenc STATE2, STATE1
+ aesenc STATE3, STATE2
+ aesenc T0, STATE3
+.endm
+
+/*
+ * __load_partial: internal ABI
+ * input:
+ * LEN - bytes
+ * SRC - src
+ * output:
+ * MSG - message block
+ * changed:
+ * T0
+ * %r8
+ * %r9
+ */
+SYM_FUNC_START_LOCAL(__load_partial)
+ xor %r9d, %r9d
+ pxor MSG, MSG
+
+ mov LEN, %r8
+ and $0x1, %r8
+ jz .Lld_partial_1
+
+ mov LEN, %r8
+ and $0x1E, %r8
+ add SRC, %r8
+ mov (%r8), %r9b
+
+.Lld_partial_1:
+ mov LEN, %r8
+ and $0x2, %r8
+ jz .Lld_partial_2
+
+ mov LEN, %r8
+ and $0x1C, %r8
+ add SRC, %r8
+ shl $0x10, %r9
+ mov (%r8), %r9w
+
+.Lld_partial_2:
+ mov LEN, %r8
+ and $0x4, %r8
+ jz .Lld_partial_4
+
+ mov LEN, %r8
+ and $0x18, %r8
+ add SRC, %r8
+ shl $32, %r9
+ mov (%r8), %r8d
+ xor %r8, %r9
+
+.Lld_partial_4:
+ movq %r9, MSG
+
+ mov LEN, %r8
+ and $0x8, %r8
+ jz .Lld_partial_8
+
+ mov LEN, %r8
+ and $0x10, %r8
+ add SRC, %r8
+ pslldq $8, MSG
+ movq (%r8), T0
+ pxor T0, MSG
+
+.Lld_partial_8:
+ RET
+SYM_FUNC_END(__load_partial)
+
+/*
+ * __store_partial: internal ABI
+ * input:
+ * LEN - bytes
+ * DST - dst
+ * output:
+ * T0 - message block
+ * changed:
+ * %r8
+ * %r9
+ * %r10
+ */
+SYM_FUNC_START_LOCAL(__store_partial)
+ mov LEN, %r8
+ mov DST, %r9
+
+ movq T0, %r10
+
+ cmp $8, %r8
+ jl .Lst_partial_8
+
+ mov %r10, (%r9)
+ psrldq $8, T0
+ movq T0, %r10
+
+ sub $8, %r8
+ add $8, %r9
+
+.Lst_partial_8:
+ cmp $4, %r8
+ jl .Lst_partial_4
+
+ mov %r10d, (%r9)
+ shr $32, %r10
+
+ sub $4, %r8
+ add $4, %r9
+
+.Lst_partial_4:
+ cmp $2, %r8
+ jl .Lst_partial_2
+
+ mov %r10w, (%r9)
+ shr $0x10, %r10
+
+ sub $2, %r8
+ add $2, %r9
+
+.Lst_partial_2:
+ cmp $1, %r8
+ jl .Lst_partial_1
+
+ mov %r10b, (%r9)
+
+.Lst_partial_1:
+ RET
+SYM_FUNC_END(__store_partial)
+
+/*
+ * void crypto_aegis128_aesni_init(void *state, const void *key, const void *iv);
+ */
+SYM_FUNC_START(crypto_aegis128_aesni_init)
+ FRAME_BEGIN
+
+ /* load IV: */
+ movdqu (%rdx), T1
+
+ /* load key: */
+ movdqa (%rsi), KEY
+ pxor KEY, T1
+ movdqa T1, STATE0
+ movdqa KEY, STATE3
+ movdqa KEY, STATE4
+
+ /* load the constants: */
+ movdqa .Laegis128_const_0(%rip), STATE2
+ movdqa .Laegis128_const_1(%rip), STATE1
+ pxor STATE2, STATE3
+ pxor STATE1, STATE4
+
+ /* update 10 times with KEY / KEY xor IV: */
+ aegis128_update; pxor KEY, STATE4
+ aegis128_update; pxor T1, STATE3
+ aegis128_update; pxor KEY, STATE2
+ aegis128_update; pxor T1, STATE1
+ aegis128_update; pxor KEY, STATE0
+ aegis128_update; pxor T1, STATE4
+ aegis128_update; pxor KEY, STATE3
+ aegis128_update; pxor T1, STATE2
+ aegis128_update; pxor KEY, STATE1
+ aegis128_update; pxor T1, STATE0
+
+ /* store the state: */
+ movdqu STATE0, 0x00(STATEP)
+ movdqu STATE1, 0x10(STATEP)
+ movdqu STATE2, 0x20(STATEP)
+ movdqu STATE3, 0x30(STATEP)
+ movdqu STATE4, 0x40(STATEP)
+
+ FRAME_END
+ RET
+SYM_FUNC_END(crypto_aegis128_aesni_init)
+
+/*
+ * void crypto_aegis128_aesni_ad(void *state, unsigned int length,
+ * const void *data);
+ */
+SYM_FUNC_START(crypto_aegis128_aesni_ad)
+ FRAME_BEGIN
+
+ cmp $0x10, LEN
+ jb .Lad_out
+
+ /* load the state: */
+ movdqu 0x00(STATEP), STATE0
+ movdqu 0x10(STATEP), STATE1
+ movdqu 0x20(STATEP), STATE2
+ movdqu 0x30(STATEP), STATE3
+ movdqu 0x40(STATEP), STATE4
+
+ mov SRC, %r8
+ and $0xF, %r8
+ jnz .Lad_u_loop
+
+.align 8
+.Lad_a_loop:
+ movdqa 0x00(SRC), MSG
+ aegis128_update
+ pxor MSG, STATE4
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lad_out_1
+
+ movdqa 0x10(SRC), MSG
+ aegis128_update
+ pxor MSG, STATE3
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lad_out_2
+
+ movdqa 0x20(SRC), MSG
+ aegis128_update
+ pxor MSG, STATE2
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lad_out_3
+
+ movdqa 0x30(SRC), MSG
+ aegis128_update
+ pxor MSG, STATE1
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lad_out_4
+
+ movdqa 0x40(SRC), MSG
+ aegis128_update
+ pxor MSG, STATE0
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lad_out_0
+
+ add $0x50, SRC
+ jmp .Lad_a_loop
+
+.align 8
+.Lad_u_loop:
+ movdqu 0x00(SRC), MSG
+ aegis128_update
+ pxor MSG, STATE4
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lad_out_1
+
+ movdqu 0x10(SRC), MSG
+ aegis128_update
+ pxor MSG, STATE3
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lad_out_2
+
+ movdqu 0x20(SRC), MSG
+ aegis128_update
+ pxor MSG, STATE2
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lad_out_3
+
+ movdqu 0x30(SRC), MSG
+ aegis128_update
+ pxor MSG, STATE1
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lad_out_4
+
+ movdqu 0x40(SRC), MSG
+ aegis128_update
+ pxor MSG, STATE0
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lad_out_0
+
+ add $0x50, SRC
+ jmp .Lad_u_loop
+
+ /* store the state: */
+.Lad_out_0:
+ movdqu STATE0, 0x00(STATEP)
+ movdqu STATE1, 0x10(STATEP)
+ movdqu STATE2, 0x20(STATEP)
+ movdqu STATE3, 0x30(STATEP)
+ movdqu STATE4, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Lad_out_1:
+ movdqu STATE4, 0x00(STATEP)
+ movdqu STATE0, 0x10(STATEP)
+ movdqu STATE1, 0x20(STATEP)
+ movdqu STATE2, 0x30(STATEP)
+ movdqu STATE3, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Lad_out_2:
+ movdqu STATE3, 0x00(STATEP)
+ movdqu STATE4, 0x10(STATEP)
+ movdqu STATE0, 0x20(STATEP)
+ movdqu STATE1, 0x30(STATEP)
+ movdqu STATE2, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Lad_out_3:
+ movdqu STATE2, 0x00(STATEP)
+ movdqu STATE3, 0x10(STATEP)
+ movdqu STATE4, 0x20(STATEP)
+ movdqu STATE0, 0x30(STATEP)
+ movdqu STATE1, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Lad_out_4:
+ movdqu STATE1, 0x00(STATEP)
+ movdqu STATE2, 0x10(STATEP)
+ movdqu STATE3, 0x20(STATEP)
+ movdqu STATE4, 0x30(STATEP)
+ movdqu STATE0, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Lad_out:
+ FRAME_END
+ RET
+SYM_FUNC_END(crypto_aegis128_aesni_ad)
+
+.macro encrypt_block a s0 s1 s2 s3 s4 i
+ movdq\a (\i * 0x10)(SRC), MSG
+ movdqa MSG, T0
+ pxor \s1, T0
+ pxor \s4, T0
+ movdqa \s2, T1
+ pand \s3, T1
+ pxor T1, T0
+ movdq\a T0, (\i * 0x10)(DST)
+
+ aegis128_update
+ pxor MSG, \s4
+
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Lenc_out_\i
+.endm
+
+/*
+ * void crypto_aegis128_aesni_enc(void *state, unsigned int length,
+ * const void *src, void *dst);
+ */
+SYM_TYPED_FUNC_START(crypto_aegis128_aesni_enc)
+ FRAME_BEGIN
+
+ cmp $0x10, LEN
+ jb .Lenc_out
+
+ /* load the state: */
+ movdqu 0x00(STATEP), STATE0
+ movdqu 0x10(STATEP), STATE1
+ movdqu 0x20(STATEP), STATE2
+ movdqu 0x30(STATEP), STATE3
+ movdqu 0x40(STATEP), STATE4
+
+ mov SRC, %r8
+ or DST, %r8
+ and $0xF, %r8
+ jnz .Lenc_u_loop
+
+.align 8
+.Lenc_a_loop:
+ encrypt_block a STATE0 STATE1 STATE2 STATE3 STATE4 0
+ encrypt_block a STATE4 STATE0 STATE1 STATE2 STATE3 1
+ encrypt_block a STATE3 STATE4 STATE0 STATE1 STATE2 2
+ encrypt_block a STATE2 STATE3 STATE4 STATE0 STATE1 3
+ encrypt_block a STATE1 STATE2 STATE3 STATE4 STATE0 4
+
+ add $0x50, SRC
+ add $0x50, DST
+ jmp .Lenc_a_loop
+
+.align 8
+.Lenc_u_loop:
+ encrypt_block u STATE0 STATE1 STATE2 STATE3 STATE4 0
+ encrypt_block u STATE4 STATE0 STATE1 STATE2 STATE3 1
+ encrypt_block u STATE3 STATE4 STATE0 STATE1 STATE2 2
+ encrypt_block u STATE2 STATE3 STATE4 STATE0 STATE1 3
+ encrypt_block u STATE1 STATE2 STATE3 STATE4 STATE0 4
+
+ add $0x50, SRC
+ add $0x50, DST
+ jmp .Lenc_u_loop
+
+ /* store the state: */
+.Lenc_out_0:
+ movdqu STATE4, 0x00(STATEP)
+ movdqu STATE0, 0x10(STATEP)
+ movdqu STATE1, 0x20(STATEP)
+ movdqu STATE2, 0x30(STATEP)
+ movdqu STATE3, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Lenc_out_1:
+ movdqu STATE3, 0x00(STATEP)
+ movdqu STATE4, 0x10(STATEP)
+ movdqu STATE0, 0x20(STATEP)
+ movdqu STATE1, 0x30(STATEP)
+ movdqu STATE2, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Lenc_out_2:
+ movdqu STATE2, 0x00(STATEP)
+ movdqu STATE3, 0x10(STATEP)
+ movdqu STATE4, 0x20(STATEP)
+ movdqu STATE0, 0x30(STATEP)
+ movdqu STATE1, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Lenc_out_3:
+ movdqu STATE1, 0x00(STATEP)
+ movdqu STATE2, 0x10(STATEP)
+ movdqu STATE3, 0x20(STATEP)
+ movdqu STATE4, 0x30(STATEP)
+ movdqu STATE0, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Lenc_out_4:
+ movdqu STATE0, 0x00(STATEP)
+ movdqu STATE1, 0x10(STATEP)
+ movdqu STATE2, 0x20(STATEP)
+ movdqu STATE3, 0x30(STATEP)
+ movdqu STATE4, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Lenc_out:
+ FRAME_END
+ RET
+SYM_FUNC_END(crypto_aegis128_aesni_enc)
+
+/*
+ * void crypto_aegis128_aesni_enc_tail(void *state, unsigned int length,
+ * const void *src, void *dst);
+ */
+SYM_TYPED_FUNC_START(crypto_aegis128_aesni_enc_tail)
+ FRAME_BEGIN
+
+ /* load the state: */
+ movdqu 0x00(STATEP), STATE0
+ movdqu 0x10(STATEP), STATE1
+ movdqu 0x20(STATEP), STATE2
+ movdqu 0x30(STATEP), STATE3
+ movdqu 0x40(STATEP), STATE4
+
+ /* encrypt message: */
+ call __load_partial
+
+ movdqa MSG, T0
+ pxor STATE1, T0
+ pxor STATE4, T0
+ movdqa STATE2, T1
+ pand STATE3, T1
+ pxor T1, T0
+
+ call __store_partial
+
+ aegis128_update
+ pxor MSG, STATE4
+
+ /* store the state: */
+ movdqu STATE4, 0x00(STATEP)
+ movdqu STATE0, 0x10(STATEP)
+ movdqu STATE1, 0x20(STATEP)
+ movdqu STATE2, 0x30(STATEP)
+ movdqu STATE3, 0x40(STATEP)
+
+ FRAME_END
+ RET
+SYM_FUNC_END(crypto_aegis128_aesni_enc_tail)
+
+.macro decrypt_block a s0 s1 s2 s3 s4 i
+ movdq\a (\i * 0x10)(SRC), MSG
+ pxor \s1, MSG
+ pxor \s4, MSG
+ movdqa \s2, T1
+ pand \s3, T1
+ pxor T1, MSG
+ movdq\a MSG, (\i * 0x10)(DST)
+
+ aegis128_update
+ pxor MSG, \s4
+
+ sub $0x10, LEN
+ cmp $0x10, LEN
+ jl .Ldec_out_\i
+.endm
+
+/*
+ * void crypto_aegis128_aesni_dec(void *state, unsigned int length,
+ * const void *src, void *dst);
+ */
+SYM_TYPED_FUNC_START(crypto_aegis128_aesni_dec)
+ FRAME_BEGIN
+
+ cmp $0x10, LEN
+ jb .Ldec_out
+
+ /* load the state: */
+ movdqu 0x00(STATEP), STATE0
+ movdqu 0x10(STATEP), STATE1
+ movdqu 0x20(STATEP), STATE2
+ movdqu 0x30(STATEP), STATE3
+ movdqu 0x40(STATEP), STATE4
+
+ mov SRC, %r8
+ or DST, %r8
+ and $0xF, %r8
+ jnz .Ldec_u_loop
+
+.align 8
+.Ldec_a_loop:
+ decrypt_block a STATE0 STATE1 STATE2 STATE3 STATE4 0
+ decrypt_block a STATE4 STATE0 STATE1 STATE2 STATE3 1
+ decrypt_block a STATE3 STATE4 STATE0 STATE1 STATE2 2
+ decrypt_block a STATE2 STATE3 STATE4 STATE0 STATE1 3
+ decrypt_block a STATE1 STATE2 STATE3 STATE4 STATE0 4
+
+ add $0x50, SRC
+ add $0x50, DST
+ jmp .Ldec_a_loop
+
+.align 8
+.Ldec_u_loop:
+ decrypt_block u STATE0 STATE1 STATE2 STATE3 STATE4 0
+ decrypt_block u STATE4 STATE0 STATE1 STATE2 STATE3 1
+ decrypt_block u STATE3 STATE4 STATE0 STATE1 STATE2 2
+ decrypt_block u STATE2 STATE3 STATE4 STATE0 STATE1 3
+ decrypt_block u STATE1 STATE2 STATE3 STATE4 STATE0 4
+
+ add $0x50, SRC
+ add $0x50, DST
+ jmp .Ldec_u_loop
+
+ /* store the state: */
+.Ldec_out_0:
+ movdqu STATE4, 0x00(STATEP)
+ movdqu STATE0, 0x10(STATEP)
+ movdqu STATE1, 0x20(STATEP)
+ movdqu STATE2, 0x30(STATEP)
+ movdqu STATE3, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Ldec_out_1:
+ movdqu STATE3, 0x00(STATEP)
+ movdqu STATE4, 0x10(STATEP)
+ movdqu STATE0, 0x20(STATEP)
+ movdqu STATE1, 0x30(STATEP)
+ movdqu STATE2, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Ldec_out_2:
+ movdqu STATE2, 0x00(STATEP)
+ movdqu STATE3, 0x10(STATEP)
+ movdqu STATE4, 0x20(STATEP)
+ movdqu STATE0, 0x30(STATEP)
+ movdqu STATE1, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Ldec_out_3:
+ movdqu STATE1, 0x00(STATEP)
+ movdqu STATE2, 0x10(STATEP)
+ movdqu STATE3, 0x20(STATEP)
+ movdqu STATE4, 0x30(STATEP)
+ movdqu STATE0, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Ldec_out_4:
+ movdqu STATE0, 0x00(STATEP)
+ movdqu STATE1, 0x10(STATEP)
+ movdqu STATE2, 0x20(STATEP)
+ movdqu STATE3, 0x30(STATEP)
+ movdqu STATE4, 0x40(STATEP)
+ FRAME_END
+ RET
+
+.Ldec_out:
+ FRAME_END
+ RET
+SYM_FUNC_END(crypto_aegis128_aesni_dec)
+
+/*
+ * void crypto_aegis128_aesni_dec_tail(void *state, unsigned int length,
+ * const void *src, void *dst);
+ */
+SYM_TYPED_FUNC_START(crypto_aegis128_aesni_dec_tail)
+ FRAME_BEGIN
+
+ /* load the state: */
+ movdqu 0x00(STATEP), STATE0
+ movdqu 0x10(STATEP), STATE1
+ movdqu 0x20(STATEP), STATE2
+ movdqu 0x30(STATEP), STATE3
+ movdqu 0x40(STATEP), STATE4
+
+ /* decrypt message: */
+ call __load_partial
+
+ pxor STATE1, MSG
+ pxor STATE4, MSG
+ movdqa STATE2, T1
+ pand STATE3, T1
+ pxor T1, MSG
+
+ movdqa MSG, T0
+ call __store_partial
+
+ /* mask with byte count: */
+ movq LEN, T0
+ punpcklbw T0, T0
+ punpcklbw T0, T0
+ punpcklbw T0, T0
+ punpcklbw T0, T0
+ movdqa .Laegis128_counter(%rip), T1
+ pcmpgtb T1, T0
+ pand T0, MSG
+
+ aegis128_update
+ pxor MSG, STATE4
+
+ /* store the state: */
+ movdqu STATE4, 0x00(STATEP)
+ movdqu STATE0, 0x10(STATEP)
+ movdqu STATE1, 0x20(STATEP)
+ movdqu STATE2, 0x30(STATEP)
+ movdqu STATE3, 0x40(STATEP)
+
+ FRAME_END
+ RET
+SYM_FUNC_END(crypto_aegis128_aesni_dec_tail)
+
+/*
+ * void crypto_aegis128_aesni_final(void *state, void *tag_xor,
+ * u64 assoclen, u64 cryptlen);
+ */
+SYM_FUNC_START(crypto_aegis128_aesni_final)
+ FRAME_BEGIN
+
+ /* load the state: */
+ movdqu 0x00(STATEP), STATE0
+ movdqu 0x10(STATEP), STATE1
+ movdqu 0x20(STATEP), STATE2
+ movdqu 0x30(STATEP), STATE3
+ movdqu 0x40(STATEP), STATE4
+
+ /* prepare length block: */
+ movq %rdx, MSG
+ movq %rcx, T0
+ pslldq $8, T0
+ pxor T0, MSG
+ psllq $3, MSG /* multiply by 8 (to get bit count) */
+
+ pxor STATE3, MSG
+
+ /* update state: */
+ aegis128_update; pxor MSG, STATE4
+ aegis128_update; pxor MSG, STATE3
+ aegis128_update; pxor MSG, STATE2
+ aegis128_update; pxor MSG, STATE1
+ aegis128_update; pxor MSG, STATE0
+ aegis128_update; pxor MSG, STATE4
+ aegis128_update; pxor MSG, STATE3
+
+ /* xor tag: */
+ movdqu (%rsi), MSG
+
+ pxor STATE0, MSG
+ pxor STATE1, MSG
+ pxor STATE2, MSG
+ pxor STATE3, MSG
+ pxor STATE4, MSG
+
+ movdqu MSG, (%rsi)
+
+ FRAME_END
+ RET
+SYM_FUNC_END(crypto_aegis128_aesni_final)
diff --git a/arch/x86/crypto/aegis128-aesni-glue.c b/arch/x86/crypto/aegis128-aesni-glue.c
new file mode 100644
index 000000000000..4623189000d8
--- /dev/null
+++ b/arch/x86/crypto/aegis128-aesni-glue.c
@@ -0,0 +1,291 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * The AEGIS-128 Authenticated-Encryption Algorithm
+ * Glue for AES-NI + SSE2 implementation
+ *
+ * Copyright (c) 2017-2018 Ondrej Mosnacek <omosnacek@gmail.com>
+ * Copyright (C) 2017-2018 Red Hat, Inc. All rights reserved.
+ */
+
+#include <crypto/internal/aead.h>
+#include <crypto/internal/simd.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/scatterwalk.h>
+#include <linux/module.h>
+#include <asm/fpu/api.h>
+#include <asm/cpu_device_id.h>
+
+#define AEGIS128_BLOCK_ALIGN 16
+#define AEGIS128_BLOCK_SIZE 16
+#define AEGIS128_NONCE_SIZE 16
+#define AEGIS128_STATE_BLOCKS 5
+#define AEGIS128_KEY_SIZE 16
+#define AEGIS128_MIN_AUTH_SIZE 8
+#define AEGIS128_MAX_AUTH_SIZE 16
+
+asmlinkage void crypto_aegis128_aesni_init(void *state, void *key, void *iv);
+
+asmlinkage void crypto_aegis128_aesni_ad(
+ void *state, unsigned int length, const void *data);
+
+asmlinkage void crypto_aegis128_aesni_enc(
+ void *state, unsigned int length, const void *src, void *dst);
+
+asmlinkage void crypto_aegis128_aesni_dec(
+ void *state, unsigned int length, const void *src, void *dst);
+
+asmlinkage void crypto_aegis128_aesni_enc_tail(
+ void *state, unsigned int length, const void *src, void *dst);
+
+asmlinkage void crypto_aegis128_aesni_dec_tail(
+ void *state, unsigned int length, const void *src, void *dst);
+
+asmlinkage void crypto_aegis128_aesni_final(
+ void *state, void *tag_xor, unsigned int cryptlen,
+ unsigned int assoclen);
+
+struct aegis_block {
+ u8 bytes[AEGIS128_BLOCK_SIZE] __aligned(AEGIS128_BLOCK_ALIGN);
+};
+
+struct aegis_state {
+ struct aegis_block blocks[AEGIS128_STATE_BLOCKS];
+};
+
+struct aegis_ctx {
+ struct aegis_block key;
+};
+
+struct aegis_crypt_ops {
+ int (*skcipher_walk_init)(struct skcipher_walk *walk,
+ struct aead_request *req, bool atomic);
+
+ void (*crypt_blocks)(void *state, unsigned int length, const void *src,
+ void *dst);
+ void (*crypt_tail)(void *state, unsigned int length, const void *src,
+ void *dst);
+};
+
+static void crypto_aegis128_aesni_process_ad(
+ struct aegis_state *state, struct scatterlist *sg_src,
+ unsigned int assoclen)
+{
+ struct scatter_walk walk;
+ struct aegis_block buf;
+ unsigned int pos = 0;
+
+ scatterwalk_start(&walk, sg_src);
+ while (assoclen != 0) {
+ unsigned int size = scatterwalk_clamp(&walk, assoclen);
+ unsigned int left = size;
+ void *mapped = scatterwalk_map(&walk);
+ const u8 *src = (const u8 *)mapped;
+
+ if (pos + size >= AEGIS128_BLOCK_SIZE) {
+ if (pos > 0) {
+ unsigned int fill = AEGIS128_BLOCK_SIZE - pos;
+ memcpy(buf.bytes + pos, src, fill);
+ crypto_aegis128_aesni_ad(state,
+ AEGIS128_BLOCK_SIZE,
+ buf.bytes);
+ pos = 0;
+ left -= fill;
+ src += fill;
+ }
+
+ crypto_aegis128_aesni_ad(state, left, src);
+
+ src += left & ~(AEGIS128_BLOCK_SIZE - 1);
+ left &= AEGIS128_BLOCK_SIZE - 1;
+ }
+
+ memcpy(buf.bytes + pos, src, left);
+ pos += left;
+ assoclen -= size;
+
+ scatterwalk_unmap(mapped);
+ scatterwalk_advance(&walk, size);
+ scatterwalk_done(&walk, 0, assoclen);
+ }
+
+ if (pos > 0) {
+ memset(buf.bytes + pos, 0, AEGIS128_BLOCK_SIZE - pos);
+ crypto_aegis128_aesni_ad(state, AEGIS128_BLOCK_SIZE, buf.bytes);
+ }
+}
+
+static void crypto_aegis128_aesni_process_crypt(
+ struct aegis_state *state, struct skcipher_walk *walk,
+ const struct aegis_crypt_ops *ops)
+{
+ while (walk->nbytes >= AEGIS128_BLOCK_SIZE) {
+ ops->crypt_blocks(state,
+ round_down(walk->nbytes, AEGIS128_BLOCK_SIZE),
+ walk->src.virt.addr, walk->dst.virt.addr);
+ skcipher_walk_done(walk, walk->nbytes % AEGIS128_BLOCK_SIZE);
+ }
+
+ if (walk->nbytes) {
+ ops->crypt_tail(state, walk->nbytes, walk->src.virt.addr,
+ walk->dst.virt.addr);
+ skcipher_walk_done(walk, 0);
+ }
+}
+
+static struct aegis_ctx *crypto_aegis128_aesni_ctx(struct crypto_aead *aead)
+{
+ u8 *ctx = crypto_aead_ctx(aead);
+ ctx = PTR_ALIGN(ctx, __alignof__(struct aegis_ctx));
+ return (void *)ctx;
+}
+
+static int crypto_aegis128_aesni_setkey(struct crypto_aead *aead, const u8 *key,
+ unsigned int keylen)
+{
+ struct aegis_ctx *ctx = crypto_aegis128_aesni_ctx(aead);
+
+ if (keylen != AEGIS128_KEY_SIZE)
+ return -EINVAL;
+
+ memcpy(ctx->key.bytes, key, AEGIS128_KEY_SIZE);
+
+ return 0;
+}
+
+static int crypto_aegis128_aesni_setauthsize(struct crypto_aead *tfm,
+ unsigned int authsize)
+{
+ if (authsize > AEGIS128_MAX_AUTH_SIZE)
+ return -EINVAL;
+ if (authsize < AEGIS128_MIN_AUTH_SIZE)
+ return -EINVAL;
+ return 0;
+}
+
+static void crypto_aegis128_aesni_crypt(struct aead_request *req,
+ struct aegis_block *tag_xor,
+ unsigned int cryptlen,
+ const struct aegis_crypt_ops *ops)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ struct aegis_ctx *ctx = crypto_aegis128_aesni_ctx(tfm);
+ struct skcipher_walk walk;
+ struct aegis_state state;
+
+ ops->skcipher_walk_init(&walk, req, true);
+
+ kernel_fpu_begin();
+
+ crypto_aegis128_aesni_init(&state, ctx->key.bytes, req->iv);
+ crypto_aegis128_aesni_process_ad(&state, req->src, req->assoclen);
+ crypto_aegis128_aesni_process_crypt(&state, &walk, ops);
+ crypto_aegis128_aesni_final(&state, tag_xor, req->assoclen, cryptlen);
+
+ kernel_fpu_end();
+}
+
+static int crypto_aegis128_aesni_encrypt(struct aead_request *req)
+{
+ static const struct aegis_crypt_ops OPS = {
+ .skcipher_walk_init = skcipher_walk_aead_encrypt,
+ .crypt_blocks = crypto_aegis128_aesni_enc,
+ .crypt_tail = crypto_aegis128_aesni_enc_tail,
+ };
+
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ struct aegis_block tag = {};
+ unsigned int authsize = crypto_aead_authsize(tfm);
+ unsigned int cryptlen = req->cryptlen;
+
+ crypto_aegis128_aesni_crypt(req, &tag, cryptlen, &OPS);
+
+ scatterwalk_map_and_copy(tag.bytes, req->dst,
+ req->assoclen + cryptlen, authsize, 1);
+ return 0;
+}
+
+static int crypto_aegis128_aesni_decrypt(struct aead_request *req)
+{
+ static const struct aegis_block zeros = {};
+
+ static const struct aegis_crypt_ops OPS = {
+ .skcipher_walk_init = skcipher_walk_aead_decrypt,
+ .crypt_blocks = crypto_aegis128_aesni_dec,
+ .crypt_tail = crypto_aegis128_aesni_dec_tail,
+ };
+
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ struct aegis_block tag;
+ unsigned int authsize = crypto_aead_authsize(tfm);
+ unsigned int cryptlen = req->cryptlen - authsize;
+
+ scatterwalk_map_and_copy(tag.bytes, req->src,
+ req->assoclen + cryptlen, authsize, 0);
+
+ crypto_aegis128_aesni_crypt(req, &tag, cryptlen, &OPS);
+
+ return crypto_memneq(tag.bytes, zeros.bytes, authsize) ? -EBADMSG : 0;
+}
+
+static int crypto_aegis128_aesni_init_tfm(struct crypto_aead *aead)
+{
+ return 0;
+}
+
+static void crypto_aegis128_aesni_exit_tfm(struct crypto_aead *aead)
+{
+}
+
+static struct aead_alg crypto_aegis128_aesni_alg = {
+ .setkey = crypto_aegis128_aesni_setkey,
+ .setauthsize = crypto_aegis128_aesni_setauthsize,
+ .encrypt = crypto_aegis128_aesni_encrypt,
+ .decrypt = crypto_aegis128_aesni_decrypt,
+ .init = crypto_aegis128_aesni_init_tfm,
+ .exit = crypto_aegis128_aesni_exit_tfm,
+
+ .ivsize = AEGIS128_NONCE_SIZE,
+ .maxauthsize = AEGIS128_MAX_AUTH_SIZE,
+ .chunksize = AEGIS128_BLOCK_SIZE,
+
+ .base = {
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct aegis_ctx) +
+ __alignof__(struct aegis_ctx),
+ .cra_alignmask = 0,
+ .cra_priority = 400,
+
+ .cra_name = "__aegis128",
+ .cra_driver_name = "__aegis128-aesni",
+
+ .cra_module = THIS_MODULE,
+ }
+};
+
+static struct simd_aead_alg *simd_alg;
+
+static int __init crypto_aegis128_aesni_module_init(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_XMM2) ||
+ !boot_cpu_has(X86_FEATURE_AES) ||
+ !cpu_has_xfeatures(XFEATURE_MASK_SSE, NULL))
+ return -ENODEV;
+
+ return simd_register_aeads_compat(&crypto_aegis128_aesni_alg, 1,
+ &simd_alg);
+}
+
+static void __exit crypto_aegis128_aesni_module_exit(void)
+{
+ simd_unregister_aeads(&crypto_aegis128_aesni_alg, 1, &simd_alg);
+}
+
+module_init(crypto_aegis128_aesni_module_init);
+module_exit(crypto_aegis128_aesni_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Ondrej Mosnacek <omosnacek@gmail.com>");
+MODULE_DESCRIPTION("AEGIS-128 AEAD algorithm -- AESNI+SSE2 implementation");
+MODULE_ALIAS_CRYPTO("aegis128");
+MODULE_ALIAS_CRYPTO("aegis128-aesni");
diff --git a/arch/x86/crypto/aes-i586-asm_32.S b/arch/x86/crypto/aes-i586-asm_32.S
deleted file mode 100644
index b949ec2f9af4..000000000000
--- a/arch/x86/crypto/aes-i586-asm_32.S
+++ /dev/null
@@ -1,367 +0,0 @@
-// -------------------------------------------------------------------------
-// Copyright (c) 2001, Dr Brian Gladman < >, Worcester, UK.
-// All rights reserved.
-//
-// LICENSE TERMS
-//
-// The free distribution and use of this software in both source and binary
-// form is allowed (with or without changes) provided that:
-//
-// 1. distributions of this source code include the above copyright
-// notice, this list of conditions and the following disclaimer//
-//
-// 2. distributions in binary form include the above copyright
-// notice, this list of conditions and the following disclaimer
-// in the documentation and/or other associated materials//
-//
-// 3. the copyright holder's name is not used to endorse products
-// built using this software without specific written permission.
-//
-//
-// ALTERNATIVELY, provided that this notice is retained in full, this product
-// may be distributed under the terms of the GNU General Public License (GPL),
-// in which case the provisions of the GPL apply INSTEAD OF those given above.
-//
-// Copyright (c) 2004 Linus Torvalds <torvalds@osdl.org>
-// Copyright (c) 2004 Red Hat, Inc., James Morris <jmorris@redhat.com>
-
-// DISCLAIMER
-//
-// This software is provided 'as is' with no explicit or implied warranties
-// in respect of its properties including, but not limited to, correctness
-// and fitness for purpose.
-// -------------------------------------------------------------------------
-// Issue Date: 29/07/2002
-
-.file "aes-i586-asm.S"
-.text
-
-#include <asm/asm-offsets.h>
-
-#define tlen 1024 // length of each of 4 'xor' arrays (256 32-bit words)
-
-/* offsets to parameters with one register pushed onto stack */
-#define ctx 8
-#define out_blk 12
-#define in_blk 16
-
-/* offsets in crypto_aes_ctx structure */
-#define klen (480)
-#define ekey (0)
-#define dkey (240)
-
-// register mapping for encrypt and decrypt subroutines
-
-#define r0 eax
-#define r1 ebx
-#define r2 ecx
-#define r3 edx
-#define r4 esi
-#define r5 edi
-
-#define eaxl al
-#define eaxh ah
-#define ebxl bl
-#define ebxh bh
-#define ecxl cl
-#define ecxh ch
-#define edxl dl
-#define edxh dh
-
-#define _h(reg) reg##h
-#define h(reg) _h(reg)
-
-#define _l(reg) reg##l
-#define l(reg) _l(reg)
-
-// This macro takes a 32-bit word representing a column and uses
-// each of its four bytes to index into four tables of 256 32-bit
-// words to obtain values that are then xored into the appropriate
-// output registers r0, r1, r4 or r5.
-
-// Parameters:
-// table table base address
-// %1 out_state[0]
-// %2 out_state[1]
-// %3 out_state[2]
-// %4 out_state[3]
-// idx input register for the round (destroyed)
-// tmp scratch register for the round
-// sched key schedule
-
-#define do_col(table, a1,a2,a3,a4, idx, tmp) \
- movzx %l(idx),%tmp; \
- xor table(,%tmp,4),%a1; \
- movzx %h(idx),%tmp; \
- shr $16,%idx; \
- xor table+tlen(,%tmp,4),%a2; \
- movzx %l(idx),%tmp; \
- movzx %h(idx),%idx; \
- xor table+2*tlen(,%tmp,4),%a3; \
- xor table+3*tlen(,%idx,4),%a4;
-
-// initialise output registers from the key schedule
-// NB1: original value of a3 is in idx on exit
-// NB2: original values of a1,a2,a4 aren't used
-#define do_fcol(table, a1,a2,a3,a4, idx, tmp, sched) \
- mov 0 sched,%a1; \
- movzx %l(idx),%tmp; \
- mov 12 sched,%a2; \
- xor table(,%tmp,4),%a1; \
- mov 4 sched,%a4; \
- movzx %h(idx),%tmp; \
- shr $16,%idx; \
- xor table+tlen(,%tmp,4),%a2; \
- movzx %l(idx),%tmp; \
- movzx %h(idx),%idx; \
- xor table+3*tlen(,%idx,4),%a4; \
- mov %a3,%idx; \
- mov 8 sched,%a3; \
- xor table+2*tlen(,%tmp,4),%a3;
-
-// initialise output registers from the key schedule
-// NB1: original value of a3 is in idx on exit
-// NB2: original values of a1,a2,a4 aren't used
-#define do_icol(table, a1,a2,a3,a4, idx, tmp, sched) \
- mov 0 sched,%a1; \
- movzx %l(idx),%tmp; \
- mov 4 sched,%a2; \
- xor table(,%tmp,4),%a1; \
- mov 12 sched,%a4; \
- movzx %h(idx),%tmp; \
- shr $16,%idx; \
- xor table+tlen(,%tmp,4),%a2; \
- movzx %l(idx),%tmp; \
- movzx %h(idx),%idx; \
- xor table+3*tlen(,%idx,4),%a4; \
- mov %a3,%idx; \
- mov 8 sched,%a3; \
- xor table+2*tlen(,%tmp,4),%a3;
-
-
-// original Gladman had conditional saves to MMX regs.
-#define save(a1, a2) \
- mov %a2,4*a1(%esp)
-
-#define restore(a1, a2) \
- mov 4*a2(%esp),%a1
-
-// These macros perform a forward encryption cycle. They are entered with
-// the first previous round column values in r0,r1,r4,r5 and
-// exit with the final values in the same registers, using stack
-// for temporary storage.
-
-// round column values
-// on entry: r0,r1,r4,r5
-// on exit: r2,r1,r4,r5
-#define fwd_rnd1(arg, table) \
- save (0,r1); \
- save (1,r5); \
- \
- /* compute new column values */ \
- do_fcol(table, r2,r5,r4,r1, r0,r3, arg); /* idx=r0 */ \
- do_col (table, r4,r1,r2,r5, r0,r3); /* idx=r4 */ \
- restore(r0,0); \
- do_col (table, r1,r2,r5,r4, r0,r3); /* idx=r1 */ \
- restore(r0,1); \
- do_col (table, r5,r4,r1,r2, r0,r3); /* idx=r5 */
-
-// round column values
-// on entry: r2,r1,r4,r5
-// on exit: r0,r1,r4,r5
-#define fwd_rnd2(arg, table) \
- save (0,r1); \
- save (1,r5); \
- \
- /* compute new column values */ \
- do_fcol(table, r0,r5,r4,r1, r2,r3, arg); /* idx=r2 */ \
- do_col (table, r4,r1,r0,r5, r2,r3); /* idx=r4 */ \
- restore(r2,0); \
- do_col (table, r1,r0,r5,r4, r2,r3); /* idx=r1 */ \
- restore(r2,1); \
- do_col (table, r5,r4,r1,r0, r2,r3); /* idx=r5 */
-
-// These macros performs an inverse encryption cycle. They are entered with
-// the first previous round column values in r0,r1,r4,r5 and
-// exit with the final values in the same registers, using stack
-// for temporary storage
-
-// round column values
-// on entry: r0,r1,r4,r5
-// on exit: r2,r1,r4,r5
-#define inv_rnd1(arg, table) \
- save (0,r1); \
- save (1,r5); \
- \
- /* compute new column values */ \
- do_icol(table, r2,r1,r4,r5, r0,r3, arg); /* idx=r0 */ \
- do_col (table, r4,r5,r2,r1, r0,r3); /* idx=r4 */ \
- restore(r0,0); \
- do_col (table, r1,r4,r5,r2, r0,r3); /* idx=r1 */ \
- restore(r0,1); \
- do_col (table, r5,r2,r1,r4, r0,r3); /* idx=r5 */
-
-// round column values
-// on entry: r2,r1,r4,r5
-// on exit: r0,r1,r4,r5
-#define inv_rnd2(arg, table) \
- save (0,r1); \
- save (1,r5); \
- \
- /* compute new column values */ \
- do_icol(table, r0,r1,r4,r5, r2,r3, arg); /* idx=r2 */ \
- do_col (table, r4,r5,r0,r1, r2,r3); /* idx=r4 */ \
- restore(r2,0); \
- do_col (table, r1,r4,r5,r0, r2,r3); /* idx=r1 */ \
- restore(r2,1); \
- do_col (table, r5,r0,r1,r4, r2,r3); /* idx=r5 */
-
-// AES (Rijndael) Encryption Subroutine
-/* void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out_blk, const u8 *in_blk) */
-
-.global aes_enc_blk
-
-.extern crypto_ft_tab
-.extern crypto_fl_tab
-
-.align 4
-
-aes_enc_blk:
- push %ebp
- mov ctx(%esp),%ebp
-
-// CAUTION: the order and the values used in these assigns
-// rely on the register mappings
-
-1: push %ebx
- mov in_blk+4(%esp),%r2
- push %esi
- mov klen(%ebp),%r3 // key size
- push %edi
-#if ekey != 0
- lea ekey(%ebp),%ebp // key pointer
-#endif
-
-// input four columns and xor in first round key
-
- mov (%r2),%r0
- mov 4(%r2),%r1
- mov 8(%r2),%r4
- mov 12(%r2),%r5
- xor (%ebp),%r0
- xor 4(%ebp),%r1
- xor 8(%ebp),%r4
- xor 12(%ebp),%r5
-
- sub $8,%esp // space for register saves on stack
- add $16,%ebp // increment to next round key
- cmp $24,%r3
- jb 4f // 10 rounds for 128-bit key
- lea 32(%ebp),%ebp
- je 3f // 12 rounds for 192-bit key
- lea 32(%ebp),%ebp
-
-2: fwd_rnd1( -64(%ebp), crypto_ft_tab) // 14 rounds for 256-bit key
- fwd_rnd2( -48(%ebp), crypto_ft_tab)
-3: fwd_rnd1( -32(%ebp), crypto_ft_tab) // 12 rounds for 192-bit key
- fwd_rnd2( -16(%ebp), crypto_ft_tab)
-4: fwd_rnd1( (%ebp), crypto_ft_tab) // 10 rounds for 128-bit key
- fwd_rnd2( +16(%ebp), crypto_ft_tab)
- fwd_rnd1( +32(%ebp), crypto_ft_tab)
- fwd_rnd2( +48(%ebp), crypto_ft_tab)
- fwd_rnd1( +64(%ebp), crypto_ft_tab)
- fwd_rnd2( +80(%ebp), crypto_ft_tab)
- fwd_rnd1( +96(%ebp), crypto_ft_tab)
- fwd_rnd2(+112(%ebp), crypto_ft_tab)
- fwd_rnd1(+128(%ebp), crypto_ft_tab)
- fwd_rnd2(+144(%ebp), crypto_fl_tab) // last round uses a different table
-
-// move final values to the output array. CAUTION: the
-// order of these assigns rely on the register mappings
-
- add $8,%esp
- mov out_blk+12(%esp),%ebp
- mov %r5,12(%ebp)
- pop %edi
- mov %r4,8(%ebp)
- pop %esi
- mov %r1,4(%ebp)
- pop %ebx
- mov %r0,(%ebp)
- pop %ebp
- ret
-
-// AES (Rijndael) Decryption Subroutine
-/* void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out_blk, const u8 *in_blk) */
-
-.global aes_dec_blk
-
-.extern crypto_it_tab
-.extern crypto_il_tab
-
-.align 4
-
-aes_dec_blk:
- push %ebp
- mov ctx(%esp),%ebp
-
-// CAUTION: the order and the values used in these assigns
-// rely on the register mappings
-
-1: push %ebx
- mov in_blk+4(%esp),%r2
- push %esi
- mov klen(%ebp),%r3 // key size
- push %edi
-#if dkey != 0
- lea dkey(%ebp),%ebp // key pointer
-#endif
-
-// input four columns and xor in first round key
-
- mov (%r2),%r0
- mov 4(%r2),%r1
- mov 8(%r2),%r4
- mov 12(%r2),%r5
- xor (%ebp),%r0
- xor 4(%ebp),%r1
- xor 8(%ebp),%r4
- xor 12(%ebp),%r5
-
- sub $8,%esp // space for register saves on stack
- add $16,%ebp // increment to next round key
- cmp $24,%r3
- jb 4f // 10 rounds for 128-bit key
- lea 32(%ebp),%ebp
- je 3f // 12 rounds for 192-bit key
- lea 32(%ebp),%ebp
-
-2: inv_rnd1( -64(%ebp), crypto_it_tab) // 14 rounds for 256-bit key
- inv_rnd2( -48(%ebp), crypto_it_tab)
-3: inv_rnd1( -32(%ebp), crypto_it_tab) // 12 rounds for 192-bit key
- inv_rnd2( -16(%ebp), crypto_it_tab)
-4: inv_rnd1( (%ebp), crypto_it_tab) // 10 rounds for 128-bit key
- inv_rnd2( +16(%ebp), crypto_it_tab)
- inv_rnd1( +32(%ebp), crypto_it_tab)
- inv_rnd2( +48(%ebp), crypto_it_tab)
- inv_rnd1( +64(%ebp), crypto_it_tab)
- inv_rnd2( +80(%ebp), crypto_it_tab)
- inv_rnd1( +96(%ebp), crypto_it_tab)
- inv_rnd2(+112(%ebp), crypto_it_tab)
- inv_rnd1(+128(%ebp), crypto_it_tab)
- inv_rnd2(+144(%ebp), crypto_il_tab) // last round uses a different table
-
-// move final values to the output array. CAUTION: the
-// order of these assigns rely on the register mappings
-
- add $8,%esp
- mov out_blk+12(%esp),%ebp
- mov %r5,12(%ebp)
- pop %edi
- mov %r4,8(%ebp)
- pop %esi
- mov %r1,4(%ebp)
- pop %ebx
- mov %r0,(%ebp)
- pop %ebp
- ret
diff --git a/arch/x86/crypto/aes-x86_64-asm_64.S b/arch/x86/crypto/aes-x86_64-asm_64.S
deleted file mode 100644
index 5b577d5a059b..000000000000
--- a/arch/x86/crypto/aes-x86_64-asm_64.S
+++ /dev/null
@@ -1,188 +0,0 @@
-/* AES (Rijndael) implementation (FIPS PUB 197) for x86_64
- *
- * Copyright (C) 2005 Andreas Steinmetz, <ast@domdv.de>
- *
- * License:
- * This code can be distributed under the terms of the GNU General Public
- * License (GPL) Version 2 provided that the above header down to and
- * including this sentence is retained in full.
- */
-
-.extern crypto_ft_tab
-.extern crypto_it_tab
-.extern crypto_fl_tab
-.extern crypto_il_tab
-
-.text
-
-#include <asm/asm-offsets.h>
-
-#define R1 %rax
-#define R1E %eax
-#define R1X %ax
-#define R1H %ah
-#define R1L %al
-#define R2 %rbx
-#define R2E %ebx
-#define R2X %bx
-#define R2H %bh
-#define R2L %bl
-#define R3 %rcx
-#define R3E %ecx
-#define R3X %cx
-#define R3H %ch
-#define R3L %cl
-#define R4 %rdx
-#define R4E %edx
-#define R4X %dx
-#define R4H %dh
-#define R4L %dl
-#define R5 %rsi
-#define R5E %esi
-#define R6 %rdi
-#define R6E %edi
-#define R7 %rbp
-#define R7E %ebp
-#define R8 %r8
-#define R9 %r9
-#define R10 %r10
-#define R11 %r11
-
-#define prologue(FUNC,KEY,B128,B192,r1,r2,r3,r4,r5,r6,r7,r8,r9,r10,r11) \
- .global FUNC; \
- .type FUNC,@function; \
- .align 8; \
-FUNC: movq r1,r2; \
- movq r3,r4; \
- leaq KEY+48(r8),r9; \
- movq r10,r11; \
- movl (r7),r5 ## E; \
- movl 4(r7),r1 ## E; \
- movl 8(r7),r6 ## E; \
- movl 12(r7),r7 ## E; \
- movl 480(r8),r10 ## E; \
- xorl -48(r9),r5 ## E; \
- xorl -44(r9),r1 ## E; \
- xorl -40(r9),r6 ## E; \
- xorl -36(r9),r7 ## E; \
- cmpl $24,r10 ## E; \
- jb B128; \
- leaq 32(r9),r9; \
- je B192; \
- leaq 32(r9),r9;
-
-#define epilogue(r1,r2,r3,r4,r5,r6,r7,r8,r9) \
- movq r1,r2; \
- movq r3,r4; \
- movl r5 ## E,(r9); \
- movl r6 ## E,4(r9); \
- movl r7 ## E,8(r9); \
- movl r8 ## E,12(r9); \
- ret;
-
-#define round(TAB,OFFSET,r1,r2,r3,r4,r5,r6,r7,r8,ra,rb,rc,rd) \
- movzbl r2 ## H,r5 ## E; \
- movzbl r2 ## L,r6 ## E; \
- movl TAB+1024(,r5,4),r5 ## E;\
- movw r4 ## X,r2 ## X; \
- movl TAB(,r6,4),r6 ## E; \
- roll $16,r2 ## E; \
- shrl $16,r4 ## E; \
- movzbl r4 ## H,r7 ## E; \
- movzbl r4 ## L,r4 ## E; \
- xorl OFFSET(r8),ra ## E; \
- xorl OFFSET+4(r8),rb ## E; \
- xorl TAB+3072(,r7,4),r5 ## E;\
- xorl TAB+2048(,r4,4),r6 ## E;\
- movzbl r1 ## L,r7 ## E; \
- movzbl r1 ## H,r4 ## E; \
- movl TAB+1024(,r4,4),r4 ## E;\
- movw r3 ## X,r1 ## X; \
- roll $16,r1 ## E; \
- shrl $16,r3 ## E; \
- xorl TAB(,r7,4),r5 ## E; \
- movzbl r3 ## H,r7 ## E; \
- movzbl r3 ## L,r3 ## E; \
- xorl TAB+3072(,r7,4),r4 ## E;\
- xorl TAB+2048(,r3,4),r5 ## E;\
- movzbl r1 ## H,r7 ## E; \
- movzbl r1 ## L,r3 ## E; \
- shrl $16,r1 ## E; \
- xorl TAB+3072(,r7,4),r6 ## E;\
- movl TAB+2048(,r3,4),r3 ## E;\
- movzbl r1 ## H,r7 ## E; \
- movzbl r1 ## L,r1 ## E; \
- xorl TAB+1024(,r7,4),r6 ## E;\
- xorl TAB(,r1,4),r3 ## E; \
- movzbl r2 ## H,r1 ## E; \
- movzbl r2 ## L,r7 ## E; \
- shrl $16,r2 ## E; \
- xorl TAB+3072(,r1,4),r3 ## E;\
- xorl TAB+2048(,r7,4),r4 ## E;\
- movzbl r2 ## H,r1 ## E; \
- movzbl r2 ## L,r2 ## E; \
- xorl OFFSET+8(r8),rc ## E; \
- xorl OFFSET+12(r8),rd ## E; \
- xorl TAB+1024(,r1,4),r3 ## E;\
- xorl TAB(,r2,4),r4 ## E;
-
-#define move_regs(r1,r2,r3,r4) \
- movl r3 ## E,r1 ## E; \
- movl r4 ## E,r2 ## E;
-
-#define entry(FUNC,KEY,B128,B192) \
- prologue(FUNC,KEY,B128,B192,R2,R8,R7,R9,R1,R3,R4,R6,R10,R5,R11)
-
-#define return epilogue(R8,R2,R9,R7,R5,R6,R3,R4,R11)
-
-#define encrypt_round(TAB,OFFSET) \
- round(TAB,OFFSET,R1,R2,R3,R4,R5,R6,R7,R10,R5,R6,R3,R4) \
- move_regs(R1,R2,R5,R6)
-
-#define encrypt_final(TAB,OFFSET) \
- round(TAB,OFFSET,R1,R2,R3,R4,R5,R6,R7,R10,R5,R6,R3,R4)
-
-#define decrypt_round(TAB,OFFSET) \
- round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4) \
- move_regs(R1,R2,R5,R6)
-
-#define decrypt_final(TAB,OFFSET) \
- round(TAB,OFFSET,R2,R1,R4,R3,R6,R5,R7,R10,R5,R6,R3,R4)
-
-/* void aes_enc_blk(stuct crypto_tfm *tfm, u8 *out, const u8 *in) */
-
- entry(aes_enc_blk,0,enc128,enc192)
- encrypt_round(crypto_ft_tab,-96)
- encrypt_round(crypto_ft_tab,-80)
-enc192: encrypt_round(crypto_ft_tab,-64)
- encrypt_round(crypto_ft_tab,-48)
-enc128: encrypt_round(crypto_ft_tab,-32)
- encrypt_round(crypto_ft_tab,-16)
- encrypt_round(crypto_ft_tab, 0)
- encrypt_round(crypto_ft_tab, 16)
- encrypt_round(crypto_ft_tab, 32)
- encrypt_round(crypto_ft_tab, 48)
- encrypt_round(crypto_ft_tab, 64)
- encrypt_round(crypto_ft_tab, 80)
- encrypt_round(crypto_ft_tab, 96)
- encrypt_final(crypto_fl_tab,112)
- return
-
-/* void aes_dec_blk(struct crypto_tfm *tfm, u8 *out, const u8 *in) */
-
- entry(aes_dec_blk,240,dec128,dec192)
- decrypt_round(crypto_it_tab,-96)
- decrypt_round(crypto_it_tab,-80)
-dec192: decrypt_round(crypto_it_tab,-64)
- decrypt_round(crypto_it_tab,-48)
-dec128: decrypt_round(crypto_it_tab,-32)
- decrypt_round(crypto_it_tab,-16)
- decrypt_round(crypto_it_tab, 0)
- decrypt_round(crypto_it_tab, 16)
- decrypt_round(crypto_it_tab, 32)
- decrypt_round(crypto_it_tab, 48)
- decrypt_round(crypto_it_tab, 64)
- decrypt_round(crypto_it_tab, 80)
- decrypt_round(crypto_it_tab, 96)
- decrypt_final(crypto_il_tab,112)
- return
diff --git a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
new file mode 100644
index 000000000000..2402b9418cd7
--- /dev/null
+++ b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S
@@ -0,0 +1,597 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR BSD-3-Clause */
+/*
+ * AES CTR mode by8 optimization with AVX instructions. (x86_64)
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * Contact Information:
+ * James Guilford <james.guilford@intel.com>
+ * Sean Gulley <sean.m.gulley@intel.com>
+ * Chandramouli Narayanan <mouli@linux.intel.com>
+ */
+/*
+ * This is AES128/192/256 CTR mode optimization implementation. It requires
+ * the support of Intel(R) AESNI and AVX instructions.
+ *
+ * This work was inspired by the AES CTR mode optimization published
+ * in Intel Optimized IPSEC Cryptographic library.
+ * Additional information on it can be found at:
+ * https://github.com/intel/intel-ipsec-mb
+ */
+
+#include <linux/linkage.h>
+
+#define VMOVDQ vmovdqu
+
+/*
+ * Note: the "x" prefix in these aliases means "this is an xmm register". The
+ * alias prefixes have no relation to XCTR where the "X" prefix means "XOR
+ * counter".
+ */
+#define xdata0 %xmm0
+#define xdata1 %xmm1
+#define xdata2 %xmm2
+#define xdata3 %xmm3
+#define xdata4 %xmm4
+#define xdata5 %xmm5
+#define xdata6 %xmm6
+#define xdata7 %xmm7
+#define xcounter %xmm8 // CTR mode only
+#define xiv %xmm8 // XCTR mode only
+#define xbyteswap %xmm9 // CTR mode only
+#define xtmp %xmm9 // XCTR mode only
+#define xkey0 %xmm10
+#define xkey4 %xmm11
+#define xkey8 %xmm12
+#define xkey12 %xmm13
+#define xkeyA %xmm14
+#define xkeyB %xmm15
+
+#define p_in %rdi
+#define p_iv %rsi
+#define p_keys %rdx
+#define p_out %rcx
+#define num_bytes %r8
+#define counter %r9 // XCTR mode only
+#define tmp %r10
+#define DDQ_DATA 0
+#define XDATA 1
+#define KEY_128 1
+#define KEY_192 2
+#define KEY_256 3
+
+.section .rodata
+.align 16
+
+byteswap_const:
+ .octa 0x000102030405060708090A0B0C0D0E0F
+ddq_low_msk:
+ .octa 0x0000000000000000FFFFFFFFFFFFFFFF
+ddq_high_add_1:
+ .octa 0x00000000000000010000000000000000
+ddq_add_1:
+ .octa 0x00000000000000000000000000000001
+ddq_add_2:
+ .octa 0x00000000000000000000000000000002
+ddq_add_3:
+ .octa 0x00000000000000000000000000000003
+ddq_add_4:
+ .octa 0x00000000000000000000000000000004
+ddq_add_5:
+ .octa 0x00000000000000000000000000000005
+ddq_add_6:
+ .octa 0x00000000000000000000000000000006
+ddq_add_7:
+ .octa 0x00000000000000000000000000000007
+ddq_add_8:
+ .octa 0x00000000000000000000000000000008
+
+.text
+
+/* generate a unique variable for ddq_add_x */
+
+/* generate a unique variable for xmm register */
+.macro setxdata n
+ var_xdata = %xmm\n
+.endm
+
+/* club the numeric 'id' to the symbol 'name' */
+
+.macro club name, id
+.altmacro
+ .if \name == XDATA
+ setxdata %\id
+ .endif
+.noaltmacro
+.endm
+
+/*
+ * do_aes num_in_par load_keys key_len
+ * This increments p_in, but not p_out
+ */
+.macro do_aes b, k, key_len, xctr
+ .set by, \b
+ .set load_keys, \k
+ .set klen, \key_len
+
+ .if (load_keys)
+ vmovdqa 0*16(p_keys), xkey0
+ .endif
+
+ .if \xctr
+ movq counter, xtmp
+ .set i, 0
+ .rept (by)
+ club XDATA, i
+ vpaddq (ddq_add_1 + 16 * i)(%rip), xtmp, var_xdata
+ .set i, (i +1)
+ .endr
+ .set i, 0
+ .rept (by)
+ club XDATA, i
+ vpxor xiv, var_xdata, var_xdata
+ .set i, (i +1)
+ .endr
+ .else
+ vpshufb xbyteswap, xcounter, xdata0
+ .set i, 1
+ .rept (by - 1)
+ club XDATA, i
+ vpaddq (ddq_add_1 + 16 * (i - 1))(%rip), xcounter, var_xdata
+ vptest ddq_low_msk(%rip), var_xdata
+ jnz 1f
+ vpaddq ddq_high_add_1(%rip), var_xdata, var_xdata
+ vpaddq ddq_high_add_1(%rip), xcounter, xcounter
+ 1:
+ vpshufb xbyteswap, var_xdata, var_xdata
+ .set i, (i +1)
+ .endr
+ .endif
+
+ vmovdqa 1*16(p_keys), xkeyA
+
+ vpxor xkey0, xdata0, xdata0
+ .if \xctr
+ add $by, counter
+ .else
+ vpaddq (ddq_add_1 + 16 * (by - 1))(%rip), xcounter, xcounter
+ vptest ddq_low_msk(%rip), xcounter
+ jnz 1f
+ vpaddq ddq_high_add_1(%rip), xcounter, xcounter
+ 1:
+ .endif
+
+ .set i, 1
+ .rept (by - 1)
+ club XDATA, i
+ vpxor xkey0, var_xdata, var_xdata
+ .set i, (i +1)
+ .endr
+
+ vmovdqa 2*16(p_keys), xkeyB
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ vaesenc xkeyA, var_xdata, var_xdata /* key 1 */
+ .set i, (i +1)
+ .endr
+
+ .if (klen == KEY_128)
+ .if (load_keys)
+ vmovdqa 3*16(p_keys), xkey4
+ .endif
+ .else
+ vmovdqa 3*16(p_keys), xkeyA
+ .endif
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ vaesenc xkeyB, var_xdata, var_xdata /* key 2 */
+ .set i, (i +1)
+ .endr
+
+ add $(16*by), p_in
+
+ .if (klen == KEY_128)
+ vmovdqa 4*16(p_keys), xkeyB
+ .else
+ .if (load_keys)
+ vmovdqa 4*16(p_keys), xkey4
+ .endif
+ .endif
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ /* key 3 */
+ .if (klen == KEY_128)
+ vaesenc xkey4, var_xdata, var_xdata
+ .else
+ vaesenc xkeyA, var_xdata, var_xdata
+ .endif
+ .set i, (i +1)
+ .endr
+
+ vmovdqa 5*16(p_keys), xkeyA
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ /* key 4 */
+ .if (klen == KEY_128)
+ vaesenc xkeyB, var_xdata, var_xdata
+ .else
+ vaesenc xkey4, var_xdata, var_xdata
+ .endif
+ .set i, (i +1)
+ .endr
+
+ .if (klen == KEY_128)
+ .if (load_keys)
+ vmovdqa 6*16(p_keys), xkey8
+ .endif
+ .else
+ vmovdqa 6*16(p_keys), xkeyB
+ .endif
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ vaesenc xkeyA, var_xdata, var_xdata /* key 5 */
+ .set i, (i +1)
+ .endr
+
+ vmovdqa 7*16(p_keys), xkeyA
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ /* key 6 */
+ .if (klen == KEY_128)
+ vaesenc xkey8, var_xdata, var_xdata
+ .else
+ vaesenc xkeyB, var_xdata, var_xdata
+ .endif
+ .set i, (i +1)
+ .endr
+
+ .if (klen == KEY_128)
+ vmovdqa 8*16(p_keys), xkeyB
+ .else
+ .if (load_keys)
+ vmovdqa 8*16(p_keys), xkey8
+ .endif
+ .endif
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ vaesenc xkeyA, var_xdata, var_xdata /* key 7 */
+ .set i, (i +1)
+ .endr
+
+ .if (klen == KEY_128)
+ .if (load_keys)
+ vmovdqa 9*16(p_keys), xkey12
+ .endif
+ .else
+ vmovdqa 9*16(p_keys), xkeyA
+ .endif
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ /* key 8 */
+ .if (klen == KEY_128)
+ vaesenc xkeyB, var_xdata, var_xdata
+ .else
+ vaesenc xkey8, var_xdata, var_xdata
+ .endif
+ .set i, (i +1)
+ .endr
+
+ vmovdqa 10*16(p_keys), xkeyB
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ /* key 9 */
+ .if (klen == KEY_128)
+ vaesenc xkey12, var_xdata, var_xdata
+ .else
+ vaesenc xkeyA, var_xdata, var_xdata
+ .endif
+ .set i, (i +1)
+ .endr
+
+ .if (klen != KEY_128)
+ vmovdqa 11*16(p_keys), xkeyA
+ .endif
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ /* key 10 */
+ .if (klen == KEY_128)
+ vaesenclast xkeyB, var_xdata, var_xdata
+ .else
+ vaesenc xkeyB, var_xdata, var_xdata
+ .endif
+ .set i, (i +1)
+ .endr
+
+ .if (klen != KEY_128)
+ .if (load_keys)
+ vmovdqa 12*16(p_keys), xkey12
+ .endif
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ vaesenc xkeyA, var_xdata, var_xdata /* key 11 */
+ .set i, (i +1)
+ .endr
+
+ .if (klen == KEY_256)
+ vmovdqa 13*16(p_keys), xkeyA
+ .endif
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ .if (klen == KEY_256)
+ /* key 12 */
+ vaesenc xkey12, var_xdata, var_xdata
+ .else
+ vaesenclast xkey12, var_xdata, var_xdata
+ .endif
+ .set i, (i +1)
+ .endr
+
+ .if (klen == KEY_256)
+ vmovdqa 14*16(p_keys), xkeyB
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ /* key 13 */
+ vaesenc xkeyA, var_xdata, var_xdata
+ .set i, (i +1)
+ .endr
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ /* key 14 */
+ vaesenclast xkeyB, var_xdata, var_xdata
+ .set i, (i +1)
+ .endr
+ .endif
+ .endif
+
+ .set i, 0
+ .rept (by / 2)
+ .set j, (i+1)
+ VMOVDQ (i*16 - 16*by)(p_in), xkeyA
+ VMOVDQ (j*16 - 16*by)(p_in), xkeyB
+ club XDATA, i
+ vpxor xkeyA, var_xdata, var_xdata
+ club XDATA, j
+ vpxor xkeyB, var_xdata, var_xdata
+ .set i, (i+2)
+ .endr
+
+ .if (i < by)
+ VMOVDQ (i*16 - 16*by)(p_in), xkeyA
+ club XDATA, i
+ vpxor xkeyA, var_xdata, var_xdata
+ .endif
+
+ .set i, 0
+ .rept by
+ club XDATA, i
+ VMOVDQ var_xdata, i*16(p_out)
+ .set i, (i+1)
+ .endr
+.endm
+
+.macro do_aes_load val, key_len, xctr
+ do_aes \val, 1, \key_len, \xctr
+.endm
+
+.macro do_aes_noload val, key_len, xctr
+ do_aes \val, 0, \key_len, \xctr
+.endm
+
+/* main body of aes ctr load */
+
+.macro do_aes_ctrmain key_len, xctr
+ cmp $16, num_bytes
+ jb .Ldo_return2\xctr\key_len
+
+ .if \xctr
+ shr $4, counter
+ vmovdqu (p_iv), xiv
+ .else
+ vmovdqa byteswap_const(%rip), xbyteswap
+ vmovdqu (p_iv), xcounter
+ vpshufb xbyteswap, xcounter, xcounter
+ .endif
+
+ mov num_bytes, tmp
+ and $(7*16), tmp
+ jz .Lmult_of_8_blks\xctr\key_len
+
+ /* 1 <= tmp <= 7 */
+ cmp $(4*16), tmp
+ jg .Lgt4\xctr\key_len
+ je .Leq4\xctr\key_len
+
+.Llt4\xctr\key_len:
+ cmp $(2*16), tmp
+ jg .Leq3\xctr\key_len
+ je .Leq2\xctr\key_len
+
+.Leq1\xctr\key_len:
+ do_aes_load 1, \key_len, \xctr
+ add $(1*16), p_out
+ and $(~7*16), num_bytes
+ jz .Ldo_return2\xctr\key_len
+ jmp .Lmain_loop2\xctr\key_len
+
+.Leq2\xctr\key_len:
+ do_aes_load 2, \key_len, \xctr
+ add $(2*16), p_out
+ and $(~7*16), num_bytes
+ jz .Ldo_return2\xctr\key_len
+ jmp .Lmain_loop2\xctr\key_len
+
+
+.Leq3\xctr\key_len:
+ do_aes_load 3, \key_len, \xctr
+ add $(3*16), p_out
+ and $(~7*16), num_bytes
+ jz .Ldo_return2\xctr\key_len
+ jmp .Lmain_loop2\xctr\key_len
+
+.Leq4\xctr\key_len:
+ do_aes_load 4, \key_len, \xctr
+ add $(4*16), p_out
+ and $(~7*16), num_bytes
+ jz .Ldo_return2\xctr\key_len
+ jmp .Lmain_loop2\xctr\key_len
+
+.Lgt4\xctr\key_len:
+ cmp $(6*16), tmp
+ jg .Leq7\xctr\key_len
+ je .Leq6\xctr\key_len
+
+.Leq5\xctr\key_len:
+ do_aes_load 5, \key_len, \xctr
+ add $(5*16), p_out
+ and $(~7*16), num_bytes
+ jz .Ldo_return2\xctr\key_len
+ jmp .Lmain_loop2\xctr\key_len
+
+.Leq6\xctr\key_len:
+ do_aes_load 6, \key_len, \xctr
+ add $(6*16), p_out
+ and $(~7*16), num_bytes
+ jz .Ldo_return2\xctr\key_len
+ jmp .Lmain_loop2\xctr\key_len
+
+.Leq7\xctr\key_len:
+ do_aes_load 7, \key_len, \xctr
+ add $(7*16), p_out
+ and $(~7*16), num_bytes
+ jz .Ldo_return2\xctr\key_len
+ jmp .Lmain_loop2\xctr\key_len
+
+.Lmult_of_8_blks\xctr\key_len:
+ .if (\key_len != KEY_128)
+ vmovdqa 0*16(p_keys), xkey0
+ vmovdqa 4*16(p_keys), xkey4
+ vmovdqa 8*16(p_keys), xkey8
+ vmovdqa 12*16(p_keys), xkey12
+ .else
+ vmovdqa 0*16(p_keys), xkey0
+ vmovdqa 3*16(p_keys), xkey4
+ vmovdqa 6*16(p_keys), xkey8
+ vmovdqa 9*16(p_keys), xkey12
+ .endif
+.align 16
+.Lmain_loop2\xctr\key_len:
+ /* num_bytes is a multiple of 8 and >0 */
+ do_aes_noload 8, \key_len, \xctr
+ add $(8*16), p_out
+ sub $(8*16), num_bytes
+ jne .Lmain_loop2\xctr\key_len
+
+.Ldo_return2\xctr\key_len:
+ .if !\xctr
+ /* return updated IV */
+ vpshufb xbyteswap, xcounter, xcounter
+ vmovdqu xcounter, (p_iv)
+ .endif
+ RET
+.endm
+
+/*
+ * routine to do AES128 CTR enc/decrypt "by8"
+ * XMM registers are clobbered.
+ * Saving/restoring must be done at a higher level
+ * aes_ctr_enc_128_avx_by8(void *in, void *iv, void *keys, void *out,
+ * unsigned int num_bytes)
+ */
+SYM_FUNC_START(aes_ctr_enc_128_avx_by8)
+ /* call the aes main loop */
+ do_aes_ctrmain KEY_128 0
+
+SYM_FUNC_END(aes_ctr_enc_128_avx_by8)
+
+/*
+ * routine to do AES192 CTR enc/decrypt "by8"
+ * XMM registers are clobbered.
+ * Saving/restoring must be done at a higher level
+ * aes_ctr_enc_192_avx_by8(void *in, void *iv, void *keys, void *out,
+ * unsigned int num_bytes)
+ */
+SYM_FUNC_START(aes_ctr_enc_192_avx_by8)
+ /* call the aes main loop */
+ do_aes_ctrmain KEY_192 0
+
+SYM_FUNC_END(aes_ctr_enc_192_avx_by8)
+
+/*
+ * routine to do AES256 CTR enc/decrypt "by8"
+ * XMM registers are clobbered.
+ * Saving/restoring must be done at a higher level
+ * aes_ctr_enc_256_avx_by8(void *in, void *iv, void *keys, void *out,
+ * unsigned int num_bytes)
+ */
+SYM_FUNC_START(aes_ctr_enc_256_avx_by8)
+ /* call the aes main loop */
+ do_aes_ctrmain KEY_256 0
+
+SYM_FUNC_END(aes_ctr_enc_256_avx_by8)
+
+/*
+ * routine to do AES128 XCTR enc/decrypt "by8"
+ * XMM registers are clobbered.
+ * Saving/restoring must be done at a higher level
+ * aes_xctr_enc_128_avx_by8(const u8 *in, const u8 *iv, const void *keys,
+ * u8* out, unsigned int num_bytes, unsigned int byte_ctr)
+ */
+SYM_FUNC_START(aes_xctr_enc_128_avx_by8)
+ /* call the aes main loop */
+ do_aes_ctrmain KEY_128 1
+
+SYM_FUNC_END(aes_xctr_enc_128_avx_by8)
+
+/*
+ * routine to do AES192 XCTR enc/decrypt "by8"
+ * XMM registers are clobbered.
+ * Saving/restoring must be done at a higher level
+ * aes_xctr_enc_192_avx_by8(const u8 *in, const u8 *iv, const void *keys,
+ * u8* out, unsigned int num_bytes, unsigned int byte_ctr)
+ */
+SYM_FUNC_START(aes_xctr_enc_192_avx_by8)
+ /* call the aes main loop */
+ do_aes_ctrmain KEY_192 1
+
+SYM_FUNC_END(aes_xctr_enc_192_avx_by8)
+
+/*
+ * routine to do AES256 XCTR enc/decrypt "by8"
+ * XMM registers are clobbered.
+ * Saving/restoring must be done at a higher level
+ * aes_xctr_enc_256_avx_by8(const u8 *in, const u8 *iv, const void *keys,
+ * u8* out, unsigned int num_bytes, unsigned int byte_ctr)
+ */
+SYM_FUNC_START(aes_xctr_enc_256_avx_by8)
+ /* call the aes main loop */
+ do_aes_ctrmain KEY_256 1
+
+SYM_FUNC_END(aes_xctr_enc_256_avx_by8)
diff --git a/arch/x86/crypto/aes_glue.c b/arch/x86/crypto/aes_glue.c
deleted file mode 100644
index 49ae9fe32b22..000000000000
--- a/arch/x86/crypto/aes_glue.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Glue Code for the asm optimized version of the AES Cipher Algorithm
- *
- */
-
-#include <crypto/aes.h>
-
-asmlinkage void aes_enc_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
-asmlinkage void aes_dec_blk(struct crypto_aes_ctx *ctx, u8 *out, const u8 *in);
-
-void crypto_aes_encrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
-{
- aes_enc_blk(ctx, dst, src);
-}
-EXPORT_SYMBOL_GPL(crypto_aes_encrypt_x86);
-
-void crypto_aes_decrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
-{
- aes_dec_blk(ctx, dst, src);
-}
-EXPORT_SYMBOL_GPL(crypto_aes_decrypt_x86);
-
-static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
- aes_enc_blk(crypto_tfm_ctx(tfm), dst, src);
-}
-
-static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
-{
- aes_dec_blk(crypto_tfm_ctx(tfm), dst, src);
-}
-
-static struct crypto_alg aes_alg = {
- .cra_name = "aes",
- .cra_driver_name = "aes-asm",
- .cra_priority = 200,
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypto_aes_ctx),
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(aes_alg.cra_list),
- .cra_u = {
- .cipher = {
- .cia_min_keysize = AES_MIN_KEY_SIZE,
- .cia_max_keysize = AES_MAX_KEY_SIZE,
- .cia_setkey = crypto_aes_set_key,
- .cia_encrypt = aes_encrypt,
- .cia_decrypt = aes_decrypt
- }
- }
-};
-
-static int __init aes_init(void)
-{
- return crypto_register_alg(&aes_alg);
-}
-
-static void __exit aes_fini(void)
-{
- crypto_unregister_alg(&aes_alg);
-}
-
-module_init(aes_init);
-module_exit(aes_fini);
-
-MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, asm optimized");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("aes");
-MODULE_ALIAS("aes-asm");
diff --git a/arch/x86/crypto/aesni-intel_asm.S b/arch/x86/crypto/aesni-intel_asm.S
index be6d9e365a80..3ac7487ecad2 100644
--- a/arch/x86/crypto/aesni-intel_asm.S
+++ b/arch/x86/crypto/aesni-intel_asm.S
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Implement AES algorithm in Intel AES-NI instructions.
*
@@ -22,58 +23,92 @@
*
* Ported x86_64 version to x86:
* Author: Mathias Krause <minipli@googlemail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
*/
#include <linux/linkage.h>
-#include <asm/inst.h>
+#include <asm/frame.h>
+#include <asm/nospec-branch.h>
+
+/*
+ * The following macros are used to move an (un)aligned 16 byte value to/from
+ * an XMM register. This can done for either FP or integer values, for FP use
+ * movaps (move aligned packed single) or integer use movdqa (move double quad
+ * aligned). It doesn't make a performance difference which instruction is used
+ * since Nehalem (original Core i7) was released. However, the movaps is a byte
+ * shorter, so that is the one we'll use for now. (same for unaligned).
+ */
+#define MOVADQ movaps
+#define MOVUDQ movups
#ifdef __x86_64__
-.data
+
+# constants in mergeable sections, linker can reorder and merge
+.section .rodata.cst16.POLY, "aM", @progbits, 16
+.align 16
POLY: .octa 0xC2000000000000000000000000000001
+.section .rodata.cst16.TWOONE, "aM", @progbits, 16
+.align 16
TWOONE: .octa 0x00000001000000000000000000000001
-# order of these constants should not change.
-# more specifically, ALL_F should follow SHIFT_MASK,
-# and ZERO should follow ALL_F
-
+.section .rodata.cst16.SHUF_MASK, "aM", @progbits, 16
+.align 16
SHUF_MASK: .octa 0x000102030405060708090A0B0C0D0E0F
+.section .rodata.cst16.MASK1, "aM", @progbits, 16
+.align 16
MASK1: .octa 0x0000000000000000ffffffffffffffff
+.section .rodata.cst16.MASK2, "aM", @progbits, 16
+.align 16
MASK2: .octa 0xffffffffffffffff0000000000000000
-SHIFT_MASK: .octa 0x0f0e0d0c0b0a09080706050403020100
-ALL_F: .octa 0xffffffffffffffffffffffffffffffff
-ZERO: .octa 0x00000000000000000000000000000000
+.section .rodata.cst16.ONE, "aM", @progbits, 16
+.align 16
ONE: .octa 0x00000000000000000000000000000001
+.section .rodata.cst16.F_MIN_MASK, "aM", @progbits, 16
+.align 16
F_MIN_MASK: .octa 0xf1f2f3f4f5f6f7f8f9fafbfcfdfeff0
+.section .rodata.cst16.dec, "aM", @progbits, 16
+.align 16
dec: .octa 0x1
+.section .rodata.cst16.enc, "aM", @progbits, 16
+.align 16
enc: .octa 0x2
+# order of these constants should not change.
+# more specifically, ALL_F should follow SHIFT_MASK,
+# and zero should follow ALL_F
+.section .rodata, "a", @progbits
+.align 16
+SHIFT_MASK: .octa 0x0f0e0d0c0b0a09080706050403020100
+ALL_F: .octa 0xffffffffffffffffffffffffffffffff
+ .octa 0x00000000000000000000000000000000
.text
#define STACK_OFFSET 8*3
-#define HashKey 16*0 // store HashKey <<1 mod poly here
-#define HashKey_2 16*1 // store HashKey^2 <<1 mod poly here
-#define HashKey_3 16*2 // store HashKey^3 <<1 mod poly here
-#define HashKey_4 16*3 // store HashKey^4 <<1 mod poly here
-#define HashKey_k 16*4 // store XOR of High 64 bits and Low 64
+
+#define AadHash 16*0
+#define AadLen 16*1
+#define InLen (16*1)+8
+#define PBlockEncKey 16*2
+#define OrigIV 16*3
+#define CurCount 16*4
+#define PBlockLen 16*5
+#define HashKey 16*6 // store HashKey <<1 mod poly here
+#define HashKey_2 16*7 // store HashKey^2 <<1 mod poly here
+#define HashKey_3 16*8 // store HashKey^3 <<1 mod poly here
+#define HashKey_4 16*9 // store HashKey^4 <<1 mod poly here
+#define HashKey_k 16*10 // store XOR of High 64 bits and Low 64
// bits of HashKey <<1 mod poly here
//(for Karatsuba purposes)
-#define HashKey_2_k 16*5 // store XOR of High 64 bits and Low 64
+#define HashKey_2_k 16*11 // store XOR of High 64 bits and Low 64
// bits of HashKey^2 <<1 mod poly here
// (for Karatsuba purposes)
-#define HashKey_3_k 16*6 // store XOR of High 64 bits and Low 64
+#define HashKey_3_k 16*12 // store XOR of High 64 bits and Low 64
// bits of HashKey^3 <<1 mod poly here
// (for Karatsuba purposes)
-#define HashKey_4_k 16*7 // store XOR of High 64 bits and Low 64
+#define HashKey_4_k 16*13 // store XOR of High 64 bits and Low 64
// bits of HashKey^4 <<1 mod poly here
// (for Karatsuba purposes)
-#define VARIABLE_OFFSET 16*8
#define arg1 rdi
#define arg2 rsi
@@ -81,10 +116,12 @@ enc: .octa 0x2
#define arg4 rcx
#define arg5 r8
#define arg6 r9
-#define arg7 STACK_OFFSET+8(%r14)
-#define arg8 STACK_OFFSET+16(%r14)
-#define arg9 STACK_OFFSET+24(%r14)
-#define arg10 STACK_OFFSET+32(%r14)
+#define arg7 STACK_OFFSET+8(%rsp)
+#define arg8 STACK_OFFSET+16(%rsp)
+#define arg9 STACK_OFFSET+24(%rsp)
+#define arg10 STACK_OFFSET+32(%rsp)
+#define arg11 STACK_OFFSET+40(%rsp)
+#define keysize 2*15*16(%arg1)
#endif
@@ -105,6 +142,8 @@ enc: .octa 0x2
#define CTR %xmm11
#define INC %xmm12
+#define GF128MUL_MASK %xmm7
+
#ifdef __x86_64__
#define AREG %rax
#define KEYP %rdi
@@ -131,6 +170,332 @@ enc: .octa 0x2
#define TKEYP T1
#endif
+.macro FUNC_SAVE
+ push %r12
+ push %r13
+ push %r14
+#
+# states of %xmm registers %xmm6:%xmm15 not saved
+# all %xmm registers are clobbered
+#
+.endm
+
+
+.macro FUNC_RESTORE
+ pop %r14
+ pop %r13
+ pop %r12
+.endm
+
+# Precompute hashkeys.
+# Input: Hash subkey.
+# Output: HashKeys stored in gcm_context_data. Only needs to be called
+# once per key.
+# clobbers r12, and tmp xmm registers.
+.macro PRECOMPUTE SUBKEY TMP1 TMP2 TMP3 TMP4 TMP5 TMP6 TMP7
+ mov \SUBKEY, %r12
+ movdqu (%r12), \TMP3
+ movdqa SHUF_MASK(%rip), \TMP2
+ pshufb \TMP2, \TMP3
+
+ # precompute HashKey<<1 mod poly from the HashKey (required for GHASH)
+
+ movdqa \TMP3, \TMP2
+ psllq $1, \TMP3
+ psrlq $63, \TMP2
+ movdqa \TMP2, \TMP1
+ pslldq $8, \TMP2
+ psrldq $8, \TMP1
+ por \TMP2, \TMP3
+
+ # reduce HashKey<<1
+
+ pshufd $0x24, \TMP1, \TMP2
+ pcmpeqd TWOONE(%rip), \TMP2
+ pand POLY(%rip), \TMP2
+ pxor \TMP2, \TMP3
+ movdqu \TMP3, HashKey(%arg2)
+
+ movdqa \TMP3, \TMP5
+ pshufd $78, \TMP3, \TMP1
+ pxor \TMP3, \TMP1
+ movdqu \TMP1, HashKey_k(%arg2)
+
+ GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
+# TMP5 = HashKey^2<<1 (mod poly)
+ movdqu \TMP5, HashKey_2(%arg2)
+# HashKey_2 = HashKey^2<<1 (mod poly)
+ pshufd $78, \TMP5, \TMP1
+ pxor \TMP5, \TMP1
+ movdqu \TMP1, HashKey_2_k(%arg2)
+
+ GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
+# TMP5 = HashKey^3<<1 (mod poly)
+ movdqu \TMP5, HashKey_3(%arg2)
+ pshufd $78, \TMP5, \TMP1
+ pxor \TMP5, \TMP1
+ movdqu \TMP1, HashKey_3_k(%arg2)
+
+ GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
+# TMP5 = HashKey^3<<1 (mod poly)
+ movdqu \TMP5, HashKey_4(%arg2)
+ pshufd $78, \TMP5, \TMP1
+ pxor \TMP5, \TMP1
+ movdqu \TMP1, HashKey_4_k(%arg2)
+.endm
+
+# GCM_INIT initializes a gcm_context struct to prepare for encoding/decoding.
+# Clobbers rax, r10-r13 and xmm0-xmm6, %xmm13
+.macro GCM_INIT Iv SUBKEY AAD AADLEN
+ mov \AADLEN, %r11
+ mov %r11, AadLen(%arg2) # ctx_data.aad_length = aad_length
+ xor %r11d, %r11d
+ mov %r11, InLen(%arg2) # ctx_data.in_length = 0
+ mov %r11, PBlockLen(%arg2) # ctx_data.partial_block_length = 0
+ mov %r11, PBlockEncKey(%arg2) # ctx_data.partial_block_enc_key = 0
+ mov \Iv, %rax
+ movdqu (%rax), %xmm0
+ movdqu %xmm0, OrigIV(%arg2) # ctx_data.orig_IV = iv
+
+ movdqa SHUF_MASK(%rip), %xmm2
+ pshufb %xmm2, %xmm0
+ movdqu %xmm0, CurCount(%arg2) # ctx_data.current_counter = iv
+
+ PRECOMPUTE \SUBKEY, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7
+ movdqu HashKey(%arg2), %xmm13
+
+ CALC_AAD_HASH %xmm13, \AAD, \AADLEN, %xmm0, %xmm1, %xmm2, %xmm3, \
+ %xmm4, %xmm5, %xmm6
+.endm
+
+# GCM_ENC_DEC Encodes/Decodes given data. Assumes that the passed gcm_context
+# struct has been initialized by GCM_INIT.
+# Requires the input data be at least 1 byte long because of READ_PARTIAL_BLOCK
+# Clobbers rax, r10-r13, and xmm0-xmm15
+.macro GCM_ENC_DEC operation
+ movdqu AadHash(%arg2), %xmm8
+ movdqu HashKey(%arg2), %xmm13
+ add %arg5, InLen(%arg2)
+
+ xor %r11d, %r11d # initialise the data pointer offset as zero
+ PARTIAL_BLOCK %arg3 %arg4 %arg5 %r11 %xmm8 \operation
+
+ sub %r11, %arg5 # sub partial block data used
+ mov %arg5, %r13 # save the number of bytes
+
+ and $-16, %r13 # %r13 = %r13 - (%r13 mod 16)
+ mov %r13, %r12
+ # Encrypt/Decrypt first few blocks
+
+ and $(3<<4), %r12
+ jz .L_initial_num_blocks_is_0_\@
+ cmp $(2<<4), %r12
+ jb .L_initial_num_blocks_is_1_\@
+ je .L_initial_num_blocks_is_2_\@
+.L_initial_num_blocks_is_3_\@:
+ INITIAL_BLOCKS_ENC_DEC %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
+%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 5, 678, \operation
+ sub $48, %r13
+ jmp .L_initial_blocks_\@
+.L_initial_num_blocks_is_2_\@:
+ INITIAL_BLOCKS_ENC_DEC %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
+%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 6, 78, \operation
+ sub $32, %r13
+ jmp .L_initial_blocks_\@
+.L_initial_num_blocks_is_1_\@:
+ INITIAL_BLOCKS_ENC_DEC %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
+%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 7, 8, \operation
+ sub $16, %r13
+ jmp .L_initial_blocks_\@
+.L_initial_num_blocks_is_0_\@:
+ INITIAL_BLOCKS_ENC_DEC %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
+%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 8, 0, \operation
+.L_initial_blocks_\@:
+
+ # Main loop - Encrypt/Decrypt remaining blocks
+
+ test %r13, %r13
+ je .L_zero_cipher_left_\@
+ sub $64, %r13
+ je .L_four_cipher_left_\@
+.L_crypt_by_4_\@:
+ GHASH_4_ENCRYPT_4_PARALLEL_\operation %xmm9, %xmm10, %xmm11, %xmm12, \
+ %xmm13, %xmm14, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, \
+ %xmm7, %xmm8, enc
+ add $64, %r11
+ sub $64, %r13
+ jne .L_crypt_by_4_\@
+.L_four_cipher_left_\@:
+ GHASH_LAST_4 %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, \
+%xmm15, %xmm1, %xmm2, %xmm3, %xmm4, %xmm8
+.L_zero_cipher_left_\@:
+ movdqu %xmm8, AadHash(%arg2)
+ movdqu %xmm0, CurCount(%arg2)
+
+ mov %arg5, %r13
+ and $15, %r13 # %r13 = arg5 (mod 16)
+ je .L_multiple_of_16_bytes_\@
+
+ mov %r13, PBlockLen(%arg2)
+
+ # Handle the last <16 Byte block separately
+ paddd ONE(%rip), %xmm0 # INCR CNT to get Yn
+ movdqu %xmm0, CurCount(%arg2)
+ movdqa SHUF_MASK(%rip), %xmm10
+ pshufb %xmm10, %xmm0
+
+ ENCRYPT_SINGLE_BLOCK %xmm0, %xmm1 # Encrypt(K, Yn)
+ movdqu %xmm0, PBlockEncKey(%arg2)
+
+ cmp $16, %arg5
+ jge .L_large_enough_update_\@
+
+ lea (%arg4,%r11,1), %r10
+ mov %r13, %r12
+ READ_PARTIAL_BLOCK %r10 %r12 %xmm2 %xmm1
+ jmp .L_data_read_\@
+
+.L_large_enough_update_\@:
+ sub $16, %r11
+ add %r13, %r11
+
+ # receive the last <16 Byte block
+ movdqu (%arg4, %r11, 1), %xmm1
+
+ sub %r13, %r11
+ add $16, %r11
+
+ lea SHIFT_MASK+16(%rip), %r12
+ # adjust the shuffle mask pointer to be able to shift 16-r13 bytes
+ # (r13 is the number of bytes in plaintext mod 16)
+ sub %r13, %r12
+ # get the appropriate shuffle mask
+ movdqu (%r12), %xmm2
+ # shift right 16-r13 bytes
+ pshufb %xmm2, %xmm1
+
+.L_data_read_\@:
+ lea ALL_F+16(%rip), %r12
+ sub %r13, %r12
+
+.ifc \operation, dec
+ movdqa %xmm1, %xmm2
+.endif
+ pxor %xmm1, %xmm0 # XOR Encrypt(K, Yn)
+ movdqu (%r12), %xmm1
+ # get the appropriate mask to mask out top 16-r13 bytes of xmm0
+ pand %xmm1, %xmm0 # mask out top 16-r13 bytes of xmm0
+.ifc \operation, dec
+ pand %xmm1, %xmm2
+ movdqa SHUF_MASK(%rip), %xmm10
+ pshufb %xmm10 ,%xmm2
+
+ pxor %xmm2, %xmm8
+.else
+ movdqa SHUF_MASK(%rip), %xmm10
+ pshufb %xmm10,%xmm0
+
+ pxor %xmm0, %xmm8
+.endif
+
+ movdqu %xmm8, AadHash(%arg2)
+.ifc \operation, enc
+ # GHASH computation for the last <16 byte block
+ movdqa SHUF_MASK(%rip), %xmm10
+ # shuffle xmm0 back to output as ciphertext
+ pshufb %xmm10, %xmm0
+.endif
+
+ # Output %r13 bytes
+ movq %xmm0, %rax
+ cmp $8, %r13
+ jle .L_less_than_8_bytes_left_\@
+ mov %rax, (%arg3 , %r11, 1)
+ add $8, %r11
+ psrldq $8, %xmm0
+ movq %xmm0, %rax
+ sub $8, %r13
+.L_less_than_8_bytes_left_\@:
+ mov %al, (%arg3, %r11, 1)
+ add $1, %r11
+ shr $8, %rax
+ sub $1, %r13
+ jne .L_less_than_8_bytes_left_\@
+.L_multiple_of_16_bytes_\@:
+.endm
+
+# GCM_COMPLETE Finishes update of tag of last partial block
+# Output: Authorization Tag (AUTH_TAG)
+# Clobbers rax, r10-r12, and xmm0, xmm1, xmm5-xmm15
+.macro GCM_COMPLETE AUTHTAG AUTHTAGLEN
+ movdqu AadHash(%arg2), %xmm8
+ movdqu HashKey(%arg2), %xmm13
+
+ mov PBlockLen(%arg2), %r12
+
+ test %r12, %r12
+ je .L_partial_done\@
+
+ GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6
+
+.L_partial_done\@:
+ mov AadLen(%arg2), %r12 # %r13 = aadLen (number of bytes)
+ shl $3, %r12 # convert into number of bits
+ movd %r12d, %xmm15 # len(A) in %xmm15
+ mov InLen(%arg2), %r12
+ shl $3, %r12 # len(C) in bits (*128)
+ movq %r12, %xmm1
+
+ pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
+ pxor %xmm1, %xmm15 # %xmm15 = len(A)||len(C)
+ pxor %xmm15, %xmm8
+ GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6
+ # final GHASH computation
+ movdqa SHUF_MASK(%rip), %xmm10
+ pshufb %xmm10, %xmm8
+
+ movdqu OrigIV(%arg2), %xmm0 # %xmm0 = Y0
+ ENCRYPT_SINGLE_BLOCK %xmm0, %xmm1 # E(K, Y0)
+ pxor %xmm8, %xmm0
+.L_return_T_\@:
+ mov \AUTHTAG, %r10 # %r10 = authTag
+ mov \AUTHTAGLEN, %r11 # %r11 = auth_tag_len
+ cmp $16, %r11
+ je .L_T_16_\@
+ cmp $8, %r11
+ jl .L_T_4_\@
+.L_T_8_\@:
+ movq %xmm0, %rax
+ mov %rax, (%r10)
+ add $8, %r10
+ sub $8, %r11
+ psrldq $8, %xmm0
+ test %r11, %r11
+ je .L_return_T_done_\@
+.L_T_4_\@:
+ movd %xmm0, %eax
+ mov %eax, (%r10)
+ add $4, %r10
+ sub $4, %r11
+ psrldq $4, %xmm0
+ test %r11, %r11
+ je .L_return_T_done_\@
+.L_T_123_\@:
+ movd %xmm0, %eax
+ cmp $2, %r11
+ jl .L_T_1_\@
+ mov %ax, (%r10)
+ cmp $2, %r11
+ je .L_return_T_done_\@
+ add $2, %r10
+ sar $16, %eax
+.L_T_1_\@:
+ mov %al, (%r10)
+ jmp .L_return_T_done_\@
+.L_T_16_\@:
+ movdqu %xmm0, (%r10)
+.L_return_T_done_\@:
+.endm
#ifdef __x86_64__
/* GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0)
@@ -148,9 +513,9 @@ enc: .octa 0x2
pshufd $78, \HK, \TMP3
pxor \GH, \TMP2 # TMP2 = a1+a0
pxor \HK, \TMP3 # TMP3 = b1+b0
- PCLMULQDQ 0x11, \HK, \TMP1 # TMP1 = a1*b1
- PCLMULQDQ 0x00, \HK, \GH # GH = a0*b0
- PCLMULQDQ 0x00, \TMP3, \TMP2 # TMP2 = (a0+a1)*(b1+b0)
+ pclmulqdq $0x11, \HK, \TMP1 # TMP1 = a1*b1
+ pclmulqdq $0x00, \HK, \GH # GH = a0*b0
+ pclmulqdq $0x00, \TMP3, \TMP2 # TMP2 = (a0+a1)*(b1+b0)
pxor \GH, \TMP2
pxor \TMP1, \TMP2 # TMP2 = (a0*b0)+(a1*b0)
movdqa \TMP2, \TMP3
@@ -193,243 +558,219 @@ enc: .octa 0x2
pxor \TMP1, \GH # result is in TMP1
.endm
-/*
-* if a = number of total plaintext bytes
-* b = floor(a/16)
-* num_initial_blocks = b mod 4
-* encrypt the initial num_initial_blocks blocks and apply ghash on
-* the ciphertext
-* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
-* are clobbered
-* arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
-*/
+# Reads DLEN bytes starting at DPTR and stores in XMMDst
+# where 0 < DLEN < 16
+# Clobbers %rax, DLEN and XMM1
+.macro READ_PARTIAL_BLOCK DPTR DLEN XMM1 XMMDst
+ cmp $8, \DLEN
+ jl .L_read_lt8_\@
+ mov (\DPTR), %rax
+ movq %rax, \XMMDst
+ sub $8, \DLEN
+ jz .L_done_read_partial_block_\@
+ xor %eax, %eax
+.L_read_next_byte_\@:
+ shl $8, %rax
+ mov 7(\DPTR, \DLEN, 1), %al
+ dec \DLEN
+ jnz .L_read_next_byte_\@
+ movq %rax, \XMM1
+ pslldq $8, \XMM1
+ por \XMM1, \XMMDst
+ jmp .L_done_read_partial_block_\@
+.L_read_lt8_\@:
+ xor %eax, %eax
+.L_read_next_byte_lt8_\@:
+ shl $8, %rax
+ mov -1(\DPTR, \DLEN, 1), %al
+ dec \DLEN
+ jnz .L_read_next_byte_lt8_\@
+ movq %rax, \XMMDst
+.L_done_read_partial_block_\@:
+.endm
+# CALC_AAD_HASH: Calculates the hash of the data which will not be encrypted.
+# clobbers r10-11, xmm14
+.macro CALC_AAD_HASH HASHKEY AAD AADLEN TMP1 TMP2 TMP3 TMP4 TMP5 \
+ TMP6 TMP7
+ MOVADQ SHUF_MASK(%rip), %xmm14
+ mov \AAD, %r10 # %r10 = AAD
+ mov \AADLEN, %r11 # %r11 = aadLen
+ pxor \TMP7, \TMP7
+ pxor \TMP6, \TMP6
-.macro INITIAL_BLOCKS_DEC num_initial_blocks TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \
-XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
- mov arg7, %r10 # %r10 = AAD
- mov arg8, %r12 # %r12 = aadLen
- mov %r12, %r11
- pxor %xmm\i, %xmm\i
-_get_AAD_loop\num_initial_blocks\operation:
- movd (%r10), \TMP1
- pslldq $12, \TMP1
- psrldq $4, %xmm\i
- pxor \TMP1, %xmm\i
- add $4, %r10
- sub $4, %r12
- jne _get_AAD_loop\num_initial_blocks\operation
cmp $16, %r11
- je _get_AAD_loop2_done\num_initial_blocks\operation
- mov $16, %r12
-_get_AAD_loop2\num_initial_blocks\operation:
- psrldq $4, %xmm\i
- sub $4, %r12
- cmp %r11, %r12
- jne _get_AAD_loop2\num_initial_blocks\operation
-_get_AAD_loop2_done\num_initial_blocks\operation:
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, %xmm\i # byte-reflect the AAD data
-
- xor %r11, %r11 # initialise the data pointer offset as zero
-
- # start AES for num_initial_blocks blocks
-
- mov %arg5, %rax # %rax = *Y0
- movdqu (%rax), \XMM0 # XMM0 = Y0
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM0
+ jl .L_get_AAD_rest\@
+.L_get_AAD_blocks\@:
+ movdqu (%r10), \TMP7
+ pshufb %xmm14, \TMP7 # byte-reflect the AAD data
+ pxor \TMP7, \TMP6
+ GHASH_MUL \TMP6, \HASHKEY, \TMP1, \TMP2, \TMP3, \TMP4, \TMP5
+ add $16, %r10
+ sub $16, %r11
+ cmp $16, %r11
+ jge .L_get_AAD_blocks\@
-.if (\i == 5) || (\i == 6) || (\i == 7)
-.irpc index, \i_seq
- paddd ONE(%rip), \XMM0 # INCR Y0
- movdqa \XMM0, %xmm\index
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, %xmm\index # perform a 16 byte swap
+ movdqu \TMP6, \TMP7
-.endr
-.irpc index, \i_seq
- pxor 16*0(%arg1), %xmm\index
-.endr
-.irpc index, \i_seq
- movaps 0x10(%rdi), \TMP1
- AESENC \TMP1, %xmm\index # Round 1
-.endr
-.irpc index, \i_seq
- movaps 0x20(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x30(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x40(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x50(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x60(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x70(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x80(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x90(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0xa0(%arg1), \TMP1
- AESENCLAST \TMP1, %xmm\index # Round 10
-.endr
-.irpc index, \i_seq
- movdqu (%arg3 , %r11, 1), \TMP1
- pxor \TMP1, %xmm\index
- movdqu %xmm\index, (%arg2 , %r11, 1)
- # write back plaintext/ciphertext for num_initial_blocks
- add $16, %r11
+ /* read the last <16B of AAD */
+.L_get_AAD_rest\@:
+ test %r11, %r11
+ je .L_get_AAD_done\@
- movdqa \TMP1, %xmm\index
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, %xmm\index
+ READ_PARTIAL_BLOCK %r10, %r11, \TMP1, \TMP7
+ pshufb %xmm14, \TMP7 # byte-reflect the AAD data
+ pxor \TMP6, \TMP7
+ GHASH_MUL \TMP7, \HASHKEY, \TMP1, \TMP2, \TMP3, \TMP4, \TMP5
+ movdqu \TMP7, \TMP6
- # prepare plaintext/ciphertext for GHASH computation
-.endr
-.endif
- GHASH_MUL %xmm\i, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
- # apply GHASH on num_initial_blocks blocks
+.L_get_AAD_done\@:
+ movdqu \TMP6, AadHash(%arg2)
+.endm
-.if \i == 5
- pxor %xmm5, %xmm6
- GHASH_MUL %xmm6, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
- pxor %xmm6, %xmm7
- GHASH_MUL %xmm7, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
- pxor %xmm7, %xmm8
- GHASH_MUL %xmm8, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
-.elseif \i == 6
- pxor %xmm6, %xmm7
- GHASH_MUL %xmm7, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
- pxor %xmm7, %xmm8
- GHASH_MUL %xmm8, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
-.elseif \i == 7
- pxor %xmm7, %xmm8
- GHASH_MUL %xmm8, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
-.endif
- cmp $64, %r13
- jl _initial_blocks_done\num_initial_blocks\operation
- # no need for precomputed values
-/*
-*
-* Precomputations for HashKey parallel with encryption of first 4 blocks.
-* Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
-*/
- paddd ONE(%rip), \XMM0 # INCR Y0
- movdqa \XMM0, \XMM1
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM1 # perform a 16 byte swap
-
- paddd ONE(%rip), \XMM0 # INCR Y0
- movdqa \XMM0, \XMM2
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM2 # perform a 16 byte swap
-
- paddd ONE(%rip), \XMM0 # INCR Y0
- movdqa \XMM0, \XMM3
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM3 # perform a 16 byte swap
-
- paddd ONE(%rip), \XMM0 # INCR Y0
- movdqa \XMM0, \XMM4
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM4 # perform a 16 byte swap
-
- pxor 16*0(%arg1), \XMM1
- pxor 16*0(%arg1), \XMM2
- pxor 16*0(%arg1), \XMM3
- pxor 16*0(%arg1), \XMM4
- movdqa \TMP3, \TMP5
- pshufd $78, \TMP3, \TMP1
- pxor \TMP3, \TMP1
- movdqa \TMP1, HashKey_k(%rsp)
- GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
-# TMP5 = HashKey^2<<1 (mod poly)
- movdqa \TMP5, HashKey_2(%rsp)
-# HashKey_2 = HashKey^2<<1 (mod poly)
- pshufd $78, \TMP5, \TMP1
- pxor \TMP5, \TMP1
- movdqa \TMP1, HashKey_2_k(%rsp)
-.irpc index, 1234 # do 4 rounds
- movaps 0x10*\index(%arg1), \TMP1
- AESENC \TMP1, \XMM1
- AESENC \TMP1, \XMM2
- AESENC \TMP1, \XMM3
- AESENC \TMP1, \XMM4
-.endr
- GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
-# TMP5 = HashKey^3<<1 (mod poly)
- movdqa \TMP5, HashKey_3(%rsp)
- pshufd $78, \TMP5, \TMP1
- pxor \TMP5, \TMP1
- movdqa \TMP1, HashKey_3_k(%rsp)
-.irpc index, 56789 # do next 5 rounds
- movaps 0x10*\index(%arg1), \TMP1
- AESENC \TMP1, \XMM1
- AESENC \TMP1, \XMM2
- AESENC \TMP1, \XMM3
- AESENC \TMP1, \XMM4
-.endr
- GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
-# TMP5 = HashKey^3<<1 (mod poly)
- movdqa \TMP5, HashKey_4(%rsp)
- pshufd $78, \TMP5, \TMP1
- pxor \TMP5, \TMP1
- movdqa \TMP1, HashKey_4_k(%rsp)
- movaps 0xa0(%arg1), \TMP2
- AESENCLAST \TMP2, \XMM1
- AESENCLAST \TMP2, \XMM2
- AESENCLAST \TMP2, \XMM3
- AESENCLAST \TMP2, \XMM4
- movdqu 16*0(%arg3 , %r11 , 1), \TMP1
- pxor \TMP1, \XMM1
- movdqu \XMM1, 16*0(%arg2 , %r11 , 1)
- movdqa \TMP1, \XMM1
- movdqu 16*1(%arg3 , %r11 , 1), \TMP1
- pxor \TMP1, \XMM2
- movdqu \XMM2, 16*1(%arg2 , %r11 , 1)
- movdqa \TMP1, \XMM2
- movdqu 16*2(%arg3 , %r11 , 1), \TMP1
- pxor \TMP1, \XMM3
- movdqu \XMM3, 16*2(%arg2 , %r11 , 1)
- movdqa \TMP1, \XMM3
- movdqu 16*3(%arg3 , %r11 , 1), \TMP1
- pxor \TMP1, \XMM4
- movdqu \XMM4, 16*3(%arg2 , %r11 , 1)
- movdqa \TMP1, \XMM4
- add $64, %r11
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM1 # perform a 16 byte swap
- pxor \XMMDst, \XMM1
-# combine GHASHed value with the corresponding ciphertext
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM2 # perform a 16 byte swap
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM3 # perform a 16 byte swap
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM4 # perform a 16 byte swap
+# PARTIAL_BLOCK: Handles encryption/decryption and the tag partial blocks
+# between update calls.
+# Requires the input data be at least 1 byte long due to READ_PARTIAL_BLOCK
+# Outputs encrypted bytes, and updates hash and partial info in gcm_data_context
+# Clobbers rax, r10, r12, r13, xmm0-6, xmm9-13
+.macro PARTIAL_BLOCK CYPH_PLAIN_OUT PLAIN_CYPH_IN PLAIN_CYPH_LEN DATA_OFFSET \
+ AAD_HASH operation
+ mov PBlockLen(%arg2), %r13
+ test %r13, %r13
+ je .L_partial_block_done_\@ # Leave Macro if no partial blocks
+ # Read in input data without over reading
+ cmp $16, \PLAIN_CYPH_LEN
+ jl .L_fewer_than_16_bytes_\@
+ movups (\PLAIN_CYPH_IN), %xmm1 # If more than 16 bytes, just fill xmm
+ jmp .L_data_read_\@
+
+.L_fewer_than_16_bytes_\@:
+ lea (\PLAIN_CYPH_IN, \DATA_OFFSET, 1), %r10
+ mov \PLAIN_CYPH_LEN, %r12
+ READ_PARTIAL_BLOCK %r10 %r12 %xmm0 %xmm1
+
+ mov PBlockLen(%arg2), %r13
+
+.L_data_read_\@: # Finished reading in data
+
+ movdqu PBlockEncKey(%arg2), %xmm9
+ movdqu HashKey(%arg2), %xmm13
+
+ lea SHIFT_MASK(%rip), %r12
+
+ # adjust the shuffle mask pointer to be able to shift r13 bytes
+ # r16-r13 is the number of bytes in plaintext mod 16)
+ add %r13, %r12
+ movdqu (%r12), %xmm2 # get the appropriate shuffle mask
+ pshufb %xmm2, %xmm9 # shift right r13 bytes
+
+.ifc \operation, dec
+ movdqa %xmm1, %xmm3
+ pxor %xmm1, %xmm9 # Cyphertext XOR E(K, Yn)
+
+ mov \PLAIN_CYPH_LEN, %r10
+ add %r13, %r10
+ # Set r10 to be the amount of data left in CYPH_PLAIN_IN after filling
+ sub $16, %r10
+ # Determine if if partial block is not being filled and
+ # shift mask accordingly
+ jge .L_no_extra_mask_1_\@
+ sub %r10, %r12
+.L_no_extra_mask_1_\@:
-_initial_blocks_done\num_initial_blocks\operation:
+ movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
+ # get the appropriate mask to mask out bottom r13 bytes of xmm9
+ pand %xmm1, %xmm9 # mask out bottom r13 bytes of xmm9
+
+ pand %xmm1, %xmm3
+ movdqa SHUF_MASK(%rip), %xmm10
+ pshufb %xmm10, %xmm3
+ pshufb %xmm2, %xmm3
+ pxor %xmm3, \AAD_HASH
+
+ test %r10, %r10
+ jl .L_partial_incomplete_1_\@
+
+ # GHASH computation for the last <16 Byte block
+ GHASH_MUL \AAD_HASH, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6
+ xor %eax, %eax
+
+ mov %rax, PBlockLen(%arg2)
+ jmp .L_dec_done_\@
+.L_partial_incomplete_1_\@:
+ add \PLAIN_CYPH_LEN, PBlockLen(%arg2)
+.L_dec_done_\@:
+ movdqu \AAD_HASH, AadHash(%arg2)
+.else
+ pxor %xmm1, %xmm9 # Plaintext XOR E(K, Yn)
+
+ mov \PLAIN_CYPH_LEN, %r10
+ add %r13, %r10
+ # Set r10 to be the amount of data left in CYPH_PLAIN_IN after filling
+ sub $16, %r10
+ # Determine if if partial block is not being filled and
+ # shift mask accordingly
+ jge .L_no_extra_mask_2_\@
+ sub %r10, %r12
+.L_no_extra_mask_2_\@:
-.endm
+ movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
+ # get the appropriate mask to mask out bottom r13 bytes of xmm9
+ pand %xmm1, %xmm9
+
+ movdqa SHUF_MASK(%rip), %xmm1
+ pshufb %xmm1, %xmm9
+ pshufb %xmm2, %xmm9
+ pxor %xmm9, \AAD_HASH
+
+ test %r10, %r10
+ jl .L_partial_incomplete_2_\@
+
+ # GHASH computation for the last <16 Byte block
+ GHASH_MUL \AAD_HASH, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6
+ xor %eax, %eax
+
+ mov %rax, PBlockLen(%arg2)
+ jmp .L_encode_done_\@
+.L_partial_incomplete_2_\@:
+ add \PLAIN_CYPH_LEN, PBlockLen(%arg2)
+.L_encode_done_\@:
+ movdqu \AAD_HASH, AadHash(%arg2)
+
+ movdqa SHUF_MASK(%rip), %xmm10
+ # shuffle xmm9 back to output as ciphertext
+ pshufb %xmm10, %xmm9
+ pshufb %xmm2, %xmm9
+.endif
+ # output encrypted Bytes
+ test %r10, %r10
+ jl .L_partial_fill_\@
+ mov %r13, %r12
+ mov $16, %r13
+ # Set r13 to be the number of bytes to write out
+ sub %r12, %r13
+ jmp .L_count_set_\@
+.L_partial_fill_\@:
+ mov \PLAIN_CYPH_LEN, %r13
+.L_count_set_\@:
+ movdqa %xmm9, %xmm0
+ movq %xmm0, %rax
+ cmp $8, %r13
+ jle .L_less_than_8_bytes_left_\@
+ mov %rax, (\CYPH_PLAIN_OUT, \DATA_OFFSET, 1)
+ add $8, \DATA_OFFSET
+ psrldq $8, %xmm0
+ movq %xmm0, %rax
+ sub $8, %r13
+.L_less_than_8_bytes_left_\@:
+ movb %al, (\CYPH_PLAIN_OUT, \DATA_OFFSET, 1)
+ add $1, \DATA_OFFSET
+ shr $8, %rax
+ sub $1, %r13
+ jne .L_less_than_8_bytes_left_\@
+.L_partial_block_done_\@:
+.endm # PARTIAL_BLOCK
/*
* if a = number of total plaintext bytes
@@ -439,110 +780,68 @@ _initial_blocks_done\num_initial_blocks\operation:
* the ciphertext
* %r10, %r11, %r12, %rax, %xmm5, %xmm6, %xmm7, %xmm8, %xmm9 registers
* are clobbered
-* arg1, %arg2, %arg3, %r14 are used as a pointer only, not modified
+* arg1, %arg2, %arg3 are used as a pointer only, not modified
*/
-.macro INITIAL_BLOCKS_ENC num_initial_blocks TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \
-XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
- mov arg7, %r10 # %r10 = AAD
- mov arg8, %r12 # %r12 = aadLen
- mov %r12, %r11
- pxor %xmm\i, %xmm\i
-_get_AAD_loop\num_initial_blocks\operation:
- movd (%r10), \TMP1
- pslldq $12, \TMP1
- psrldq $4, %xmm\i
- pxor \TMP1, %xmm\i
- add $4, %r10
- sub $4, %r12
- jne _get_AAD_loop\num_initial_blocks\operation
- cmp $16, %r11
- je _get_AAD_loop2_done\num_initial_blocks\operation
- mov $16, %r12
-_get_AAD_loop2\num_initial_blocks\operation:
- psrldq $4, %xmm\i
- sub $4, %r12
- cmp %r11, %r12
- jne _get_AAD_loop2\num_initial_blocks\operation
-_get_AAD_loop2_done\num_initial_blocks\operation:
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, %xmm\i # byte-reflect the AAD data
-
- xor %r11, %r11 # initialise the data pointer offset as zero
-
- # start AES for num_initial_blocks blocks
-
- mov %arg5, %rax # %rax = *Y0
- movdqu (%rax), \XMM0 # XMM0 = Y0
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM0
+.macro INITIAL_BLOCKS_ENC_DEC TMP1 TMP2 TMP3 TMP4 TMP5 XMM0 XMM1 \
+ XMM2 XMM3 XMM4 XMMDst TMP6 TMP7 i i_seq operation
+ MOVADQ SHUF_MASK(%rip), %xmm14
+
+ movdqu AadHash(%arg2), %xmm\i # XMM0 = Y0
+
+ # start AES for num_initial_blocks blocks
+
+ movdqu CurCount(%arg2), \XMM0 # XMM0 = Y0
.if (\i == 5) || (\i == 6) || (\i == 7)
-.irpc index, \i_seq
- paddd ONE(%rip), \XMM0 # INCR Y0
- movdqa \XMM0, %xmm\index
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, %xmm\index # perform a 16 byte swap
-.endr
+ MOVADQ ONE(%RIP),\TMP1
+ MOVADQ 0(%arg1),\TMP2
.irpc index, \i_seq
- pxor 16*0(%arg1), %xmm\index
-.endr
-.irpc index, \i_seq
- movaps 0x10(%rdi), \TMP1
- AESENC \TMP1, %xmm\index # Round 1
-.endr
-.irpc index, \i_seq
- movaps 0x20(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x30(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x40(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x50(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x60(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x70(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
-.endr
-.irpc index, \i_seq
- movaps 0x80(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
+ paddd \TMP1, \XMM0 # INCR Y0
+.ifc \operation, dec
+ movdqa \XMM0, %xmm\index
+.else
+ MOVADQ \XMM0, %xmm\index
+.endif
+ pshufb %xmm14, %xmm\index # perform a 16 byte swap
+ pxor \TMP2, %xmm\index
.endr
-.irpc index, \i_seq
- movaps 0x90(%arg1), \TMP1
- AESENC \TMP1, %xmm\index # Round 2
+ lea 0x10(%arg1),%r10
+ mov keysize,%eax
+ shr $2,%eax # 128->4, 192->6, 256->8
+ add $5,%eax # 128->9, 192->11, 256->13
+
+.Laes_loop_initial_\@:
+ MOVADQ (%r10),\TMP1
+.irpc index, \i_seq
+ aesenc \TMP1, %xmm\index
.endr
+ add $16,%r10
+ sub $1,%eax
+ jnz .Laes_loop_initial_\@
+
+ MOVADQ (%r10), \TMP1
.irpc index, \i_seq
- movaps 0xa0(%arg1), \TMP1
- AESENCLAST \TMP1, %xmm\index # Round 10
+ aesenclast \TMP1, %xmm\index # Last Round
.endr
.irpc index, \i_seq
- movdqu (%arg3 , %r11, 1), \TMP1
+ movdqu (%arg4 , %r11, 1), \TMP1
pxor \TMP1, %xmm\index
- movdqu %xmm\index, (%arg2 , %r11, 1)
+ movdqu %xmm\index, (%arg3 , %r11, 1)
# write back plaintext/ciphertext for num_initial_blocks
add $16, %r11
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, %xmm\index
+.ifc \operation, dec
+ movdqa \TMP1, %xmm\index
+.endif
+ pshufb %xmm14, %xmm\index
# prepare plaintext/ciphertext for GHASH computation
.endr
.endif
- GHASH_MUL %xmm\i, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
+
# apply GHASH on num_initial_blocks blocks
.if \i == 5
@@ -562,115 +861,119 @@ _get_AAD_loop2_done\num_initial_blocks\operation:
GHASH_MUL %xmm8, \TMP3, \TMP1, \TMP2, \TMP4, \TMP5, \XMM1
.endif
cmp $64, %r13
- jl _initial_blocks_done\num_initial_blocks\operation
+ jl .L_initial_blocks_done\@
# no need for precomputed values
/*
*
* Precomputations for HashKey parallel with encryption of first 4 blocks.
* Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
*/
- paddd ONE(%rip), \XMM0 # INCR Y0
- movdqa \XMM0, \XMM1
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM1 # perform a 16 byte swap
-
- paddd ONE(%rip), \XMM0 # INCR Y0
- movdqa \XMM0, \XMM2
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM2 # perform a 16 byte swap
-
- paddd ONE(%rip), \XMM0 # INCR Y0
- movdqa \XMM0, \XMM3
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM3 # perform a 16 byte swap
-
- paddd ONE(%rip), \XMM0 # INCR Y0
- movdqa \XMM0, \XMM4
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM4 # perform a 16 byte swap
-
- pxor 16*0(%arg1), \XMM1
- pxor 16*0(%arg1), \XMM2
- pxor 16*0(%arg1), \XMM3
- pxor 16*0(%arg1), \XMM4
- movdqa \TMP3, \TMP5
- pshufd $78, \TMP3, \TMP1
- pxor \TMP3, \TMP1
- movdqa \TMP1, HashKey_k(%rsp)
- GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
-# TMP5 = HashKey^2<<1 (mod poly)
- movdqa \TMP5, HashKey_2(%rsp)
-# HashKey_2 = HashKey^2<<1 (mod poly)
- pshufd $78, \TMP5, \TMP1
- pxor \TMP5, \TMP1
- movdqa \TMP1, HashKey_2_k(%rsp)
+ MOVADQ ONE(%RIP),\TMP1
+ paddd \TMP1, \XMM0 # INCR Y0
+ MOVADQ \XMM0, \XMM1
+ pshufb %xmm14, \XMM1 # perform a 16 byte swap
+
+ paddd \TMP1, \XMM0 # INCR Y0
+ MOVADQ \XMM0, \XMM2
+ pshufb %xmm14, \XMM2 # perform a 16 byte swap
+
+ paddd \TMP1, \XMM0 # INCR Y0
+ MOVADQ \XMM0, \XMM3
+ pshufb %xmm14, \XMM3 # perform a 16 byte swap
+
+ paddd \TMP1, \XMM0 # INCR Y0
+ MOVADQ \XMM0, \XMM4
+ pshufb %xmm14, \XMM4 # perform a 16 byte swap
+
+ MOVADQ 0(%arg1),\TMP1
+ pxor \TMP1, \XMM1
+ pxor \TMP1, \XMM2
+ pxor \TMP1, \XMM3
+ pxor \TMP1, \XMM4
.irpc index, 1234 # do 4 rounds
movaps 0x10*\index(%arg1), \TMP1
- AESENC \TMP1, \XMM1
- AESENC \TMP1, \XMM2
- AESENC \TMP1, \XMM3
- AESENC \TMP1, \XMM4
+ aesenc \TMP1, \XMM1
+ aesenc \TMP1, \XMM2
+ aesenc \TMP1, \XMM3
+ aesenc \TMP1, \XMM4
.endr
- GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
-# TMP5 = HashKey^3<<1 (mod poly)
- movdqa \TMP5, HashKey_3(%rsp)
- pshufd $78, \TMP5, \TMP1
- pxor \TMP5, \TMP1
- movdqa \TMP1, HashKey_3_k(%rsp)
.irpc index, 56789 # do next 5 rounds
movaps 0x10*\index(%arg1), \TMP1
- AESENC \TMP1, \XMM1
- AESENC \TMP1, \XMM2
- AESENC \TMP1, \XMM3
- AESENC \TMP1, \XMM4
+ aesenc \TMP1, \XMM1
+ aesenc \TMP1, \XMM2
+ aesenc \TMP1, \XMM3
+ aesenc \TMP1, \XMM4
.endr
- GHASH_MUL \TMP5, \TMP3, \TMP1, \TMP2, \TMP4, \TMP6, \TMP7
-# TMP5 = HashKey^3<<1 (mod poly)
- movdqa \TMP5, HashKey_4(%rsp)
- pshufd $78, \TMP5, \TMP1
- pxor \TMP5, \TMP1
- movdqa \TMP1, HashKey_4_k(%rsp)
- movaps 0xa0(%arg1), \TMP2
- AESENCLAST \TMP2, \XMM1
- AESENCLAST \TMP2, \XMM2
- AESENCLAST \TMP2, \XMM3
- AESENCLAST \TMP2, \XMM4
- movdqu 16*0(%arg3 , %r11 , 1), \TMP1
+ lea 0xa0(%arg1),%r10
+ mov keysize,%eax
+ shr $2,%eax # 128->4, 192->6, 256->8
+ sub $4,%eax # 128->0, 192->2, 256->4
+ jz .Laes_loop_pre_done\@
+
+.Laes_loop_pre_\@:
+ MOVADQ (%r10),\TMP2
+.irpc index, 1234
+ aesenc \TMP2, %xmm\index
+.endr
+ add $16,%r10
+ sub $1,%eax
+ jnz .Laes_loop_pre_\@
+
+.Laes_loop_pre_done\@:
+ MOVADQ (%r10), \TMP2
+ aesenclast \TMP2, \XMM1
+ aesenclast \TMP2, \XMM2
+ aesenclast \TMP2, \XMM3
+ aesenclast \TMP2, \XMM4
+ movdqu 16*0(%arg4 , %r11 , 1), \TMP1
pxor \TMP1, \XMM1
- movdqu 16*1(%arg3 , %r11 , 1), \TMP1
+.ifc \operation, dec
+ movdqu \XMM1, 16*0(%arg3 , %r11 , 1)
+ movdqa \TMP1, \XMM1
+.endif
+ movdqu 16*1(%arg4 , %r11 , 1), \TMP1
pxor \TMP1, \XMM2
- movdqu 16*2(%arg3 , %r11 , 1), \TMP1
+.ifc \operation, dec
+ movdqu \XMM2, 16*1(%arg3 , %r11 , 1)
+ movdqa \TMP1, \XMM2
+.endif
+ movdqu 16*2(%arg4 , %r11 , 1), \TMP1
pxor \TMP1, \XMM3
- movdqu 16*3(%arg3 , %r11 , 1), \TMP1
+.ifc \operation, dec
+ movdqu \XMM3, 16*2(%arg3 , %r11 , 1)
+ movdqa \TMP1, \XMM3
+.endif
+ movdqu 16*3(%arg4 , %r11 , 1), \TMP1
pxor \TMP1, \XMM4
- movdqu \XMM1, 16*0(%arg2 , %r11 , 1)
- movdqu \XMM2, 16*1(%arg2 , %r11 , 1)
- movdqu \XMM3, 16*2(%arg2 , %r11 , 1)
- movdqu \XMM4, 16*3(%arg2 , %r11 , 1)
+.ifc \operation, dec
+ movdqu \XMM4, 16*3(%arg3 , %r11 , 1)
+ movdqa \TMP1, \XMM4
+.else
+ movdqu \XMM1, 16*0(%arg3 , %r11 , 1)
+ movdqu \XMM2, 16*1(%arg3 , %r11 , 1)
+ movdqu \XMM3, 16*2(%arg3 , %r11 , 1)
+ movdqu \XMM4, 16*3(%arg3 , %r11 , 1)
+.endif
add $64, %r11
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM1 # perform a 16 byte swap
+ pshufb %xmm14, \XMM1 # perform a 16 byte swap
pxor \XMMDst, \XMM1
# combine GHASHed value with the corresponding ciphertext
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM2 # perform a 16 byte swap
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM3 # perform a 16 byte swap
- movdqa SHUF_MASK(%rip), %xmm14
- PSHUFB_XMM %xmm14, \XMM4 # perform a 16 byte swap
+ pshufb %xmm14, \XMM2 # perform a 16 byte swap
+ pshufb %xmm14, \XMM3 # perform a 16 byte swap
+ pshufb %xmm14, \XMM4 # perform a 16 byte swap
-_initial_blocks_done\num_initial_blocks\operation:
+.L_initial_blocks_done\@:
.endm
/*
* encrypt 4 blocks at a time
* ghash the 4 previously encrypted ciphertext blocks
-* arg1, %arg2, %arg3 are used as pointers only, not modified
+* arg1, %arg3, %arg4 are used as pointers only, not modified
* %r11 is the data offset value
*/
-.macro GHASH_4_ENCRYPT_4_PARALLEL_ENC TMP1 TMP2 TMP3 TMP4 TMP5 \
+.macro GHASH_4_ENCRYPT_4_PARALLEL_enc TMP1 TMP2 TMP3 TMP4 TMP5 \
TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM1, \XMM5
@@ -685,8 +988,8 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
pshufd $78, \XMM5, \TMP6
pxor \XMM5, \TMP6
paddd ONE(%rip), \XMM0 # INCR CNT
- movdqa HashKey_4(%rsp), \TMP5
- PCLMULQDQ 0x11, \TMP5, \TMP4 # TMP4 = a1*b1
+ movdqu HashKey_4(%arg2), \TMP5
+ pclmulqdq $0x11, \TMP5, \TMP4 # TMP4 = a1*b1
movdqa \XMM0, \XMM1
paddd ONE(%rip), \XMM0 # INCR CNT
movdqa \XMM0, \XMM2
@@ -694,51 +997,51 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM0, \XMM3
paddd ONE(%rip), \XMM0 # INCR CNT
movdqa \XMM0, \XMM4
- PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap
- PCLMULQDQ 0x00, \TMP5, \XMM5 # XMM5 = a0*b0
- PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap
- PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap
- PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap
+ pshufb %xmm15, \XMM1 # perform a 16 byte swap
+ pclmulqdq $0x00, \TMP5, \XMM5 # XMM5 = a0*b0
+ pshufb %xmm15, \XMM2 # perform a 16 byte swap
+ pshufb %xmm15, \XMM3 # perform a 16 byte swap
+ pshufb %xmm15, \XMM4 # perform a 16 byte swap
pxor (%arg1), \XMM1
pxor (%arg1), \XMM2
pxor (%arg1), \XMM3
pxor (%arg1), \XMM4
- movdqa HashKey_4_k(%rsp), \TMP5
- PCLMULQDQ 0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0)
+ movdqu HashKey_4_k(%arg2), \TMP5
+ pclmulqdq $0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0)
movaps 0x10(%arg1), \TMP1
- AESENC \TMP1, \XMM1 # Round 1
- AESENC \TMP1, \XMM2
- AESENC \TMP1, \XMM3
- AESENC \TMP1, \XMM4
+ aesenc \TMP1, \XMM1 # Round 1
+ aesenc \TMP1, \XMM2
+ aesenc \TMP1, \XMM3
+ aesenc \TMP1, \XMM4
movaps 0x20(%arg1), \TMP1
- AESENC \TMP1, \XMM1 # Round 2
- AESENC \TMP1, \XMM2
- AESENC \TMP1, \XMM3
- AESENC \TMP1, \XMM4
+ aesenc \TMP1, \XMM1 # Round 2
+ aesenc \TMP1, \XMM2
+ aesenc \TMP1, \XMM3
+ aesenc \TMP1, \XMM4
movdqa \XMM6, \TMP1
pshufd $78, \XMM6, \TMP2
pxor \XMM6, \TMP2
- movdqa HashKey_3(%rsp), \TMP5
- PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1 * b1
+ movdqu HashKey_3(%arg2), \TMP5
+ pclmulqdq $0x11, \TMP5, \TMP1 # TMP1 = a1 * b1
movaps 0x30(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 3
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
- PCLMULQDQ 0x00, \TMP5, \XMM6 # XMM6 = a0*b0
+ aesenc \TMP3, \XMM1 # Round 3
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
+ pclmulqdq $0x00, \TMP5, \XMM6 # XMM6 = a0*b0
movaps 0x40(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 4
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
- movdqa HashKey_3_k(%rsp), \TMP5
- PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
+ aesenc \TMP3, \XMM1 # Round 4
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
+ movdqu HashKey_3_k(%arg2), \TMP5
+ pclmulqdq $0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
movaps 0x50(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 5
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
+ aesenc \TMP3, \XMM1 # Round 5
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
pxor \TMP1, \TMP4
# accumulate the results in TMP4:XMM5, TMP6 holds the middle part
pxor \XMM6, \XMM5
@@ -746,29 +1049,29 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM7, \TMP1
pshufd $78, \XMM7, \TMP2
pxor \XMM7, \TMP2
- movdqa HashKey_2(%rsp ), \TMP5
+ movdqu HashKey_2(%arg2), \TMP5
# Multiply TMP5 * HashKey using karatsuba
- PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1
+ pclmulqdq $0x11, \TMP5, \TMP1 # TMP1 = a1*b1
movaps 0x60(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 6
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
- PCLMULQDQ 0x00, \TMP5, \XMM7 # XMM7 = a0*b0
+ aesenc \TMP3, \XMM1 # Round 6
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
+ pclmulqdq $0x00, \TMP5, \XMM7 # XMM7 = a0*b0
movaps 0x70(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 7
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
- movdqa HashKey_2_k(%rsp), \TMP5
- PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
+ aesenc \TMP3, \XMM1 # Round 7
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
+ movdqu HashKey_2_k(%arg2), \TMP5
+ pclmulqdq $0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
movaps 0x80(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 8
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
+ aesenc \TMP3, \XMM1 # Round 8
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
pxor \TMP1, \TMP4
# accumulate the results in TMP4:XMM5, TMP6 holds the middle part
pxor \XMM7, \XMM5
@@ -780,37 +1083,53 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM8, \TMP1
pshufd $78, \XMM8, \TMP2
pxor \XMM8, \TMP2
- movdqa HashKey(%rsp), \TMP5
- PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1
+ movdqu HashKey(%arg2), \TMP5
+ pclmulqdq $0x11, \TMP5, \TMP1 # TMP1 = a1*b1
movaps 0x90(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 9
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
- PCLMULQDQ 0x00, \TMP5, \XMM8 # XMM8 = a0*b0
- movaps 0xa0(%arg1), \TMP3
- AESENCLAST \TMP3, \XMM1 # Round 10
- AESENCLAST \TMP3, \XMM2
- AESENCLAST \TMP3, \XMM3
- AESENCLAST \TMP3, \XMM4
- movdqa HashKey_k(%rsp), \TMP5
- PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
- movdqu (%arg3,%r11,1), \TMP3
+ aesenc \TMP3, \XMM1 # Round 9
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
+ pclmulqdq $0x00, \TMP5, \XMM8 # XMM8 = a0*b0
+ lea 0xa0(%arg1),%r10
+ mov keysize,%eax
+ shr $2,%eax # 128->4, 192->6, 256->8
+ sub $4,%eax # 128->0, 192->2, 256->4
+ jz .Laes_loop_par_enc_done\@
+
+.Laes_loop_par_enc\@:
+ MOVADQ (%r10),\TMP3
+.irpc index, 1234
+ aesenc \TMP3, %xmm\index
+.endr
+ add $16,%r10
+ sub $1,%eax
+ jnz .Laes_loop_par_enc\@
+
+.Laes_loop_par_enc_done\@:
+ MOVADQ (%r10), \TMP3
+ aesenclast \TMP3, \XMM1 # Round 10
+ aesenclast \TMP3, \XMM2
+ aesenclast \TMP3, \XMM3
+ aesenclast \TMP3, \XMM4
+ movdqu HashKey_k(%arg2), \TMP5
+ pclmulqdq $0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
+ movdqu (%arg4,%r11,1), \TMP3
pxor \TMP3, \XMM1 # Ciphertext/Plaintext XOR EK
- movdqu 16(%arg3,%r11,1), \TMP3
+ movdqu 16(%arg4,%r11,1), \TMP3
pxor \TMP3, \XMM2 # Ciphertext/Plaintext XOR EK
- movdqu 32(%arg3,%r11,1), \TMP3
+ movdqu 32(%arg4,%r11,1), \TMP3
pxor \TMP3, \XMM3 # Ciphertext/Plaintext XOR EK
- movdqu 48(%arg3,%r11,1), \TMP3
+ movdqu 48(%arg4,%r11,1), \TMP3
pxor \TMP3, \XMM4 # Ciphertext/Plaintext XOR EK
- movdqu \XMM1, (%arg2,%r11,1) # Write to the ciphertext buffer
- movdqu \XMM2, 16(%arg2,%r11,1) # Write to the ciphertext buffer
- movdqu \XMM3, 32(%arg2,%r11,1) # Write to the ciphertext buffer
- movdqu \XMM4, 48(%arg2,%r11,1) # Write to the ciphertext buffer
- PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap
- PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap
- PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap
- PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap
+ movdqu \XMM1, (%arg3,%r11,1) # Write to the ciphertext buffer
+ movdqu \XMM2, 16(%arg3,%r11,1) # Write to the ciphertext buffer
+ movdqu \XMM3, 32(%arg3,%r11,1) # Write to the ciphertext buffer
+ movdqu \XMM4, 48(%arg3,%r11,1) # Write to the ciphertext buffer
+ pshufb %xmm15, \XMM1 # perform a 16 byte swap
+ pshufb %xmm15, \XMM2 # perform a 16 byte swap
+ pshufb %xmm15, \XMM3 # perform a 16 byte swap
+ pshufb %xmm15, \XMM4 # perform a 16 byte swap
pxor \TMP4, \TMP1
pxor \XMM8, \XMM5
@@ -859,10 +1178,10 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
/*
* decrypt 4 blocks at a time
* ghash the 4 previously decrypted ciphertext blocks
-* arg1, %arg2, %arg3 are used as pointers only, not modified
+* arg1, %arg3, %arg4 are used as pointers only, not modified
* %r11 is the data offset value
*/
-.macro GHASH_4_ENCRYPT_4_PARALLEL_DEC TMP1 TMP2 TMP3 TMP4 TMP5 \
+.macro GHASH_4_ENCRYPT_4_PARALLEL_dec TMP1 TMP2 TMP3 TMP4 TMP5 \
TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM1, \XMM5
@@ -877,8 +1196,8 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
pshufd $78, \XMM5, \TMP6
pxor \XMM5, \TMP6
paddd ONE(%rip), \XMM0 # INCR CNT
- movdqa HashKey_4(%rsp), \TMP5
- PCLMULQDQ 0x11, \TMP5, \TMP4 # TMP4 = a1*b1
+ movdqu HashKey_4(%arg2), \TMP5
+ pclmulqdq $0x11, \TMP5, \TMP4 # TMP4 = a1*b1
movdqa \XMM0, \XMM1
paddd ONE(%rip), \XMM0 # INCR CNT
movdqa \XMM0, \XMM2
@@ -886,51 +1205,51 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM0, \XMM3
paddd ONE(%rip), \XMM0 # INCR CNT
movdqa \XMM0, \XMM4
- PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap
- PCLMULQDQ 0x00, \TMP5, \XMM5 # XMM5 = a0*b0
- PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap
- PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap
- PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap
+ pshufb %xmm15, \XMM1 # perform a 16 byte swap
+ pclmulqdq $0x00, \TMP5, \XMM5 # XMM5 = a0*b0
+ pshufb %xmm15, \XMM2 # perform a 16 byte swap
+ pshufb %xmm15, \XMM3 # perform a 16 byte swap
+ pshufb %xmm15, \XMM4 # perform a 16 byte swap
pxor (%arg1), \XMM1
pxor (%arg1), \XMM2
pxor (%arg1), \XMM3
pxor (%arg1), \XMM4
- movdqa HashKey_4_k(%rsp), \TMP5
- PCLMULQDQ 0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0)
+ movdqu HashKey_4_k(%arg2), \TMP5
+ pclmulqdq $0x00, \TMP5, \TMP6 # TMP6 = (a1+a0)*(b1+b0)
movaps 0x10(%arg1), \TMP1
- AESENC \TMP1, \XMM1 # Round 1
- AESENC \TMP1, \XMM2
- AESENC \TMP1, \XMM3
- AESENC \TMP1, \XMM4
+ aesenc \TMP1, \XMM1 # Round 1
+ aesenc \TMP1, \XMM2
+ aesenc \TMP1, \XMM3
+ aesenc \TMP1, \XMM4
movaps 0x20(%arg1), \TMP1
- AESENC \TMP1, \XMM1 # Round 2
- AESENC \TMP1, \XMM2
- AESENC \TMP1, \XMM3
- AESENC \TMP1, \XMM4
+ aesenc \TMP1, \XMM1 # Round 2
+ aesenc \TMP1, \XMM2
+ aesenc \TMP1, \XMM3
+ aesenc \TMP1, \XMM4
movdqa \XMM6, \TMP1
pshufd $78, \XMM6, \TMP2
pxor \XMM6, \TMP2
- movdqa HashKey_3(%rsp), \TMP5
- PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1 * b1
+ movdqu HashKey_3(%arg2), \TMP5
+ pclmulqdq $0x11, \TMP5, \TMP1 # TMP1 = a1 * b1
movaps 0x30(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 3
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
- PCLMULQDQ 0x00, \TMP5, \XMM6 # XMM6 = a0*b0
+ aesenc \TMP3, \XMM1 # Round 3
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
+ pclmulqdq $0x00, \TMP5, \XMM6 # XMM6 = a0*b0
movaps 0x40(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 4
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
- movdqa HashKey_3_k(%rsp), \TMP5
- PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
+ aesenc \TMP3, \XMM1 # Round 4
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
+ movdqu HashKey_3_k(%arg2), \TMP5
+ pclmulqdq $0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
movaps 0x50(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 5
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
+ aesenc \TMP3, \XMM1 # Round 5
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
pxor \TMP1, \TMP4
# accumulate the results in TMP4:XMM5, TMP6 holds the middle part
pxor \XMM6, \XMM5
@@ -938,29 +1257,29 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM7, \TMP1
pshufd $78, \XMM7, \TMP2
pxor \XMM7, \TMP2
- movdqa HashKey_2(%rsp ), \TMP5
+ movdqu HashKey_2(%arg2), \TMP5
# Multiply TMP5 * HashKey using karatsuba
- PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1
+ pclmulqdq $0x11, \TMP5, \TMP1 # TMP1 = a1*b1
movaps 0x60(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 6
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
- PCLMULQDQ 0x00, \TMP5, \XMM7 # XMM7 = a0*b0
+ aesenc \TMP3, \XMM1 # Round 6
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
+ pclmulqdq $0x00, \TMP5, \XMM7 # XMM7 = a0*b0
movaps 0x70(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 7
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
- movdqa HashKey_2_k(%rsp), \TMP5
- PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
+ aesenc \TMP3, \XMM1 # Round 7
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
+ movdqu HashKey_2_k(%arg2), \TMP5
+ pclmulqdq $0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
movaps 0x80(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 8
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
+ aesenc \TMP3, \XMM1 # Round 8
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
pxor \TMP1, \TMP4
# accumulate the results in TMP4:XMM5, TMP6 holds the middle part
pxor \XMM7, \XMM5
@@ -972,41 +1291,57 @@ TMP6 XMM0 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 operation
movdqa \XMM8, \TMP1
pshufd $78, \XMM8, \TMP2
pxor \XMM8, \TMP2
- movdqa HashKey(%rsp), \TMP5
- PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1
+ movdqu HashKey(%arg2), \TMP5
+ pclmulqdq $0x11, \TMP5, \TMP1 # TMP1 = a1*b1
movaps 0x90(%arg1), \TMP3
- AESENC \TMP3, \XMM1 # Round 9
- AESENC \TMP3, \XMM2
- AESENC \TMP3, \XMM3
- AESENC \TMP3, \XMM4
- PCLMULQDQ 0x00, \TMP5, \XMM8 # XMM8 = a0*b0
- movaps 0xa0(%arg1), \TMP3
- AESENCLAST \TMP3, \XMM1 # Round 10
- AESENCLAST \TMP3, \XMM2
- AESENCLAST \TMP3, \XMM3
- AESENCLAST \TMP3, \XMM4
- movdqa HashKey_k(%rsp), \TMP5
- PCLMULQDQ 0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
- movdqu (%arg3,%r11,1), \TMP3
+ aesenc \TMP3, \XMM1 # Round 9
+ aesenc \TMP3, \XMM2
+ aesenc \TMP3, \XMM3
+ aesenc \TMP3, \XMM4
+ pclmulqdq $0x00, \TMP5, \XMM8 # XMM8 = a0*b0
+ lea 0xa0(%arg1),%r10
+ mov keysize,%eax
+ shr $2,%eax # 128->4, 192->6, 256->8
+ sub $4,%eax # 128->0, 192->2, 256->4
+ jz .Laes_loop_par_dec_done\@
+
+.Laes_loop_par_dec\@:
+ MOVADQ (%r10),\TMP3
+.irpc index, 1234
+ aesenc \TMP3, %xmm\index
+.endr
+ add $16,%r10
+ sub $1,%eax
+ jnz .Laes_loop_par_dec\@
+
+.Laes_loop_par_dec_done\@:
+ MOVADQ (%r10), \TMP3
+ aesenclast \TMP3, \XMM1 # last round
+ aesenclast \TMP3, \XMM2
+ aesenclast \TMP3, \XMM3
+ aesenclast \TMP3, \XMM4
+ movdqu HashKey_k(%arg2), \TMP5
+ pclmulqdq $0x00, \TMP5, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
+ movdqu (%arg4,%r11,1), \TMP3
pxor \TMP3, \XMM1 # Ciphertext/Plaintext XOR EK
- movdqu \XMM1, (%arg2,%r11,1) # Write to plaintext buffer
+ movdqu \XMM1, (%arg3,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM1
- movdqu 16(%arg3,%r11,1), \TMP3
+ movdqu 16(%arg4,%r11,1), \TMP3
pxor \TMP3, \XMM2 # Ciphertext/Plaintext XOR EK
- movdqu \XMM2, 16(%arg2,%r11,1) # Write to plaintext buffer
+ movdqu \XMM2, 16(%arg3,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM2
- movdqu 32(%arg3,%r11,1), \TMP3
+ movdqu 32(%arg4,%r11,1), \TMP3
pxor \TMP3, \XMM3 # Ciphertext/Plaintext XOR EK
- movdqu \XMM3, 32(%arg2,%r11,1) # Write to plaintext buffer
+ movdqu \XMM3, 32(%arg3,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM3
- movdqu 48(%arg3,%r11,1), \TMP3
+ movdqu 48(%arg4,%r11,1), \TMP3
pxor \TMP3, \XMM4 # Ciphertext/Plaintext XOR EK
- movdqu \XMM4, 48(%arg2,%r11,1) # Write to plaintext buffer
+ movdqu \XMM4, 48(%arg3,%r11,1) # Write to plaintext buffer
movdqa \TMP3, \XMM4
- PSHUFB_XMM %xmm15, \XMM1 # perform a 16 byte swap
- PSHUFB_XMM %xmm15, \XMM2 # perform a 16 byte swap
- PSHUFB_XMM %xmm15, \XMM3 # perform a 16 byte swap
- PSHUFB_XMM %xmm15, \XMM4 # perform a 16 byte swap
+ pshufb %xmm15, \XMM1 # perform a 16 byte swap
+ pshufb %xmm15, \XMM2 # perform a 16 byte swap
+ pshufb %xmm15, \XMM3 # perform a 16 byte swap
+ pshufb %xmm15, \XMM4 # perform a 16 byte swap
pxor \TMP4, \TMP1
pxor \XMM8, \XMM5
@@ -1061,11 +1396,11 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
movdqa \XMM1, \TMP6
pshufd $78, \XMM1, \TMP2
pxor \XMM1, \TMP2
- movdqa HashKey_4(%rsp), \TMP5
- PCLMULQDQ 0x11, \TMP5, \TMP6 # TMP6 = a1*b1
- PCLMULQDQ 0x00, \TMP5, \XMM1 # XMM1 = a0*b0
- movdqa HashKey_4_k(%rsp), \TMP4
- PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
+ movdqu HashKey_4(%arg2), \TMP5
+ pclmulqdq $0x11, \TMP5, \TMP6 # TMP6 = a1*b1
+ pclmulqdq $0x00, \TMP5, \XMM1 # XMM1 = a0*b0
+ movdqu HashKey_4_k(%arg2), \TMP4
+ pclmulqdq $0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
movdqa \XMM1, \XMMDst
movdqa \TMP2, \XMM1 # result in TMP6, XMMDst, XMM1
@@ -1074,11 +1409,11 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
movdqa \XMM2, \TMP1
pshufd $78, \XMM2, \TMP2
pxor \XMM2, \TMP2
- movdqa HashKey_3(%rsp), \TMP5
- PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1
- PCLMULQDQ 0x00, \TMP5, \XMM2 # XMM2 = a0*b0
- movdqa HashKey_3_k(%rsp), \TMP4
- PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
+ movdqu HashKey_3(%arg2), \TMP5
+ pclmulqdq $0x11, \TMP5, \TMP1 # TMP1 = a1*b1
+ pclmulqdq $0x00, \TMP5, \XMM2 # XMM2 = a0*b0
+ movdqu HashKey_3_k(%arg2), \TMP4
+ pclmulqdq $0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
pxor \TMP1, \TMP6
pxor \XMM2, \XMMDst
pxor \TMP2, \XMM1
@@ -1089,11 +1424,11 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
movdqa \XMM3, \TMP1
pshufd $78, \XMM3, \TMP2
pxor \XMM3, \TMP2
- movdqa HashKey_2(%rsp), \TMP5
- PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1
- PCLMULQDQ 0x00, \TMP5, \XMM3 # XMM3 = a0*b0
- movdqa HashKey_2_k(%rsp), \TMP4
- PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
+ movdqu HashKey_2(%arg2), \TMP5
+ pclmulqdq $0x11, \TMP5, \TMP1 # TMP1 = a1*b1
+ pclmulqdq $0x00, \TMP5, \XMM3 # XMM3 = a0*b0
+ movdqu HashKey_2_k(%arg2), \TMP4
+ pclmulqdq $0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
pxor \TMP1, \TMP6
pxor \XMM3, \XMMDst
pxor \TMP2, \XMM1 # results accumulated in TMP6, XMMDst, XMM1
@@ -1102,11 +1437,11 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
movdqa \XMM4, \TMP1
pshufd $78, \XMM4, \TMP2
pxor \XMM4, \TMP2
- movdqa HashKey(%rsp), \TMP5
- PCLMULQDQ 0x11, \TMP5, \TMP1 # TMP1 = a1*b1
- PCLMULQDQ 0x00, \TMP5, \XMM4 # XMM4 = a0*b0
- movdqa HashKey_k(%rsp), \TMP4
- PCLMULQDQ 0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
+ movdqu HashKey(%arg2), \TMP5
+ pclmulqdq $0x11, \TMP5, \TMP1 # TMP1 = a1*b1
+ pclmulqdq $0x00, \TMP5, \XMM4 # XMM4 = a0*b0
+ movdqu HashKey_k(%arg2), \TMP4
+ pclmulqdq $0x00, \TMP4, \TMP2 # TMP2 = (a1+a0)*(b1+b0)
pxor \TMP1, \TMP6
pxor \XMM4, \XMMDst
pxor \XMM1, \TMP2
@@ -1149,35 +1484,33 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
pxor \TMP6, \XMMDst # reduced result is in XMMDst
.endm
-/* Encryption of a single block done*/
-.macro ENCRYPT_SINGLE_BLOCK XMM0 TMP1
- pxor (%arg1), \XMM0
- movaps 16(%arg1), \TMP1
- AESENC \TMP1, \XMM0
- movaps 32(%arg1), \TMP1
- AESENC \TMP1, \XMM0
- movaps 48(%arg1), \TMP1
- AESENC \TMP1, \XMM0
- movaps 64(%arg1), \TMP1
- AESENC \TMP1, \XMM0
- movaps 80(%arg1), \TMP1
- AESENC \TMP1, \XMM0
- movaps 96(%arg1), \TMP1
- AESENC \TMP1, \XMM0
- movaps 112(%arg1), \TMP1
- AESENC \TMP1, \XMM0
- movaps 128(%arg1), \TMP1
- AESENC \TMP1, \XMM0
- movaps 144(%arg1), \TMP1
- AESENC \TMP1, \XMM0
- movaps 160(%arg1), \TMP1
- AESENCLAST \TMP1, \XMM0
-.endm
+/* Encryption of a single block
+* uses eax & r10
+*/
+.macro ENCRYPT_SINGLE_BLOCK XMM0 TMP1
+ pxor (%arg1), \XMM0
+ mov keysize,%eax
+ shr $2,%eax # 128->4, 192->6, 256->8
+ add $5,%eax # 128->9, 192->11, 256->13
+ lea 16(%arg1), %r10 # get first expanded key address
+
+_esb_loop_\@:
+ MOVADQ (%r10),\TMP1
+ aesenc \TMP1,\XMM0
+ add $16,%r10
+ sub $1,%eax
+ jnz _esb_loop_\@
+
+ MOVADQ (%r10),\TMP1
+ aesenclast \TMP1,\XMM0
+.endm
/*****************************************************************************
* void aesni_gcm_dec(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary.
+* struct gcm_context_data *data
+* // Context data
* u8 *out, // Plaintext output. Encrypt in-place is allowed.
* const u8 *in, // Ciphertext input
* u64 plaintext_len, // Length of data in bytes for decryption.
@@ -1251,196 +1584,24 @@ TMP7 XMM1 XMM2 XMM3 XMM4 XMMDst
*
* AAD Format with 64-bit Extended Sequence Number
*
-* aadLen:
-* from the definition of the spec, aadLen can only be 8 or 12 bytes.
-* The code supports 16 too but for other sizes, the code will fail.
-*
-* TLen:
-* from the definition of the spec, TLen can only be 8, 12 or 16 bytes.
-* For other sizes, the code will fail.
-*
* poly = x^128 + x^127 + x^126 + x^121 + 1
*
*****************************************************************************/
+SYM_FUNC_START(aesni_gcm_dec)
+ FUNC_SAVE
-ENTRY(aesni_gcm_dec)
- push %r12
- push %r13
- push %r14
- mov %rsp, %r14
-/*
-* states of %xmm registers %xmm6:%xmm15 not saved
-* all %xmm registers are clobbered
-*/
- sub $VARIABLE_OFFSET, %rsp
- and $~63, %rsp # align rsp to 64 bytes
- mov %arg6, %r12
- movdqu (%r12), %xmm13 # %xmm13 = HashKey
- movdqa SHUF_MASK(%rip), %xmm2
- PSHUFB_XMM %xmm2, %xmm13
-
-
-# Precompute HashKey<<1 (mod poly) from the hash key (required for GHASH)
-
- movdqa %xmm13, %xmm2
- psllq $1, %xmm13
- psrlq $63, %xmm2
- movdqa %xmm2, %xmm1
- pslldq $8, %xmm2
- psrldq $8, %xmm1
- por %xmm2, %xmm13
-
- # Reduction
-
- pshufd $0x24, %xmm1, %xmm2
- pcmpeqd TWOONE(%rip), %xmm2
- pand POLY(%rip), %xmm2
- pxor %xmm2, %xmm13 # %xmm13 holds the HashKey<<1 (mod poly)
-
-
- # Decrypt first few blocks
-
- movdqa %xmm13, HashKey(%rsp) # store HashKey<<1 (mod poly)
- mov %arg4, %r13 # save the number of bytes of plaintext/ciphertext
- and $-16, %r13 # %r13 = %r13 - (%r13 mod 16)
- mov %r13, %r12
- and $(3<<4), %r12
- jz _initial_num_blocks_is_0_decrypt
- cmp $(2<<4), %r12
- jb _initial_num_blocks_is_1_decrypt
- je _initial_num_blocks_is_2_decrypt
-_initial_num_blocks_is_3_decrypt:
- INITIAL_BLOCKS_DEC 3, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
-%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 5, 678, dec
- sub $48, %r13
- jmp _initial_blocks_decrypted
-_initial_num_blocks_is_2_decrypt:
- INITIAL_BLOCKS_DEC 2, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
-%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 6, 78, dec
- sub $32, %r13
- jmp _initial_blocks_decrypted
-_initial_num_blocks_is_1_decrypt:
- INITIAL_BLOCKS_DEC 1, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
-%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 7, 8, dec
- sub $16, %r13
- jmp _initial_blocks_decrypted
-_initial_num_blocks_is_0_decrypt:
- INITIAL_BLOCKS_DEC 0, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
-%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 8, 0, dec
-_initial_blocks_decrypted:
- cmp $0, %r13
- je _zero_cipher_left_decrypt
- sub $64, %r13
- je _four_cipher_left_decrypt
-_decrypt_by_4:
- GHASH_4_ENCRYPT_4_PARALLEL_DEC %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, \
-%xmm14, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, dec
- add $64, %r11
- sub $64, %r13
- jne _decrypt_by_4
-_four_cipher_left_decrypt:
- GHASH_LAST_4 %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, \
-%xmm15, %xmm1, %xmm2, %xmm3, %xmm4, %xmm8
-_zero_cipher_left_decrypt:
- mov %arg4, %r13
- and $15, %r13 # %r13 = arg4 (mod 16)
- je _multiple_of_16_bytes_decrypt
-
- # Handle the last <16 byte block separately
-
- paddd ONE(%rip), %xmm0 # increment CNT to get Yn
- movdqa SHUF_MASK(%rip), %xmm10
- PSHUFB_XMM %xmm10, %xmm0
-
- ENCRYPT_SINGLE_BLOCK %xmm0, %xmm1 # E(K, Yn)
- sub $16, %r11
- add %r13, %r11
- movdqu (%arg3,%r11,1), %xmm1 # receive the last <16 byte block
- lea SHIFT_MASK+16(%rip), %r12
- sub %r13, %r12
-# adjust the shuffle mask pointer to be able to shift 16-%r13 bytes
-# (%r13 is the number of bytes in plaintext mod 16)
- movdqu (%r12), %xmm2 # get the appropriate shuffle mask
- PSHUFB_XMM %xmm2, %xmm1 # right shift 16-%r13 butes
-
- movdqa %xmm1, %xmm2
- pxor %xmm1, %xmm0 # Ciphertext XOR E(K, Yn)
- movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
- # get the appropriate mask to mask out top 16-%r13 bytes of %xmm0
- pand %xmm1, %xmm0 # mask out top 16-%r13 bytes of %xmm0
- pand %xmm1, %xmm2
- movdqa SHUF_MASK(%rip), %xmm10
- PSHUFB_XMM %xmm10 ,%xmm2
-
- pxor %xmm2, %xmm8
- GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6
- # GHASH computation for the last <16 byte block
- sub %r13, %r11
- add $16, %r11
-
- # output %r13 bytes
- MOVQ_R64_XMM %xmm0, %rax
- cmp $8, %r13
- jle _less_than_8_bytes_left_decrypt
- mov %rax, (%arg2 , %r11, 1)
- add $8, %r11
- psrldq $8, %xmm0
- MOVQ_R64_XMM %xmm0, %rax
- sub $8, %r13
-_less_than_8_bytes_left_decrypt:
- mov %al, (%arg2, %r11, 1)
- add $1, %r11
- shr $8, %rax
- sub $1, %r13
- jne _less_than_8_bytes_left_decrypt
-_multiple_of_16_bytes_decrypt:
- mov arg8, %r12 # %r13 = aadLen (number of bytes)
- shl $3, %r12 # convert into number of bits
- movd %r12d, %xmm15 # len(A) in %xmm15
- shl $3, %arg4 # len(C) in bits (*128)
- MOVQ_R64_XMM %arg4, %xmm1
- pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
- pxor %xmm1, %xmm15 # %xmm15 = len(A)||len(C)
- pxor %xmm15, %xmm8
- GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6
- # final GHASH computation
- movdqa SHUF_MASK(%rip), %xmm10
- PSHUFB_XMM %xmm10, %xmm8
-
- mov %arg5, %rax # %rax = *Y0
- movdqu (%rax), %xmm0 # %xmm0 = Y0
- ENCRYPT_SINGLE_BLOCK %xmm0, %xmm1 # E(K, Y0)
- pxor %xmm8, %xmm0
-_return_T_decrypt:
- mov arg9, %r10 # %r10 = authTag
- mov arg10, %r11 # %r11 = auth_tag_len
- cmp $16, %r11
- je _T_16_decrypt
- cmp $12, %r11
- je _T_12_decrypt
-_T_8_decrypt:
- MOVQ_R64_XMM %xmm0, %rax
- mov %rax, (%r10)
- jmp _return_T_done_decrypt
-_T_12_decrypt:
- MOVQ_R64_XMM %xmm0, %rax
- mov %rax, (%r10)
- psrldq $8, %xmm0
- movd %xmm0, %eax
- mov %eax, 8(%r10)
- jmp _return_T_done_decrypt
-_T_16_decrypt:
- movdqu %xmm0, (%r10)
-_return_T_done_decrypt:
- mov %r14, %rsp
- pop %r14
- pop %r13
- pop %r12
- ret
+ GCM_INIT %arg6, arg7, arg8, arg9
+ GCM_ENC_DEC dec
+ GCM_COMPLETE arg10, arg11
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_dec)
/*****************************************************************************
* void aesni_gcm_enc(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary.
+* struct gcm_context_data *data
+* // Context data
* u8 *out, // Ciphertext output. Encrypt in-place is allowed.
* const u8 *in, // Plaintext input
* u64 plaintext_len, // Length of data in bytes for encryption.
@@ -1512,200 +1673,85 @@ _return_T_done_decrypt:
*
* AAD Format with 64-bit Extended Sequence Number
*
-* aadLen:
-* from the definition of the spec, aadLen can only be 8 or 12 bytes.
-* The code supports 16 too but for other sizes, the code will fail.
-*
-* TLen:
-* from the definition of the spec, TLen can only be 8, 12 or 16 bytes.
-* For other sizes, the code will fail.
-*
* poly = x^128 + x^127 + x^126 + x^121 + 1
***************************************************************************/
-ENTRY(aesni_gcm_enc)
- push %r12
- push %r13
- push %r14
- mov %rsp, %r14
-#
-# states of %xmm registers %xmm6:%xmm15 not saved
-# all %xmm registers are clobbered
-#
- sub $VARIABLE_OFFSET, %rsp
- and $~63, %rsp
- mov %arg6, %r12
- movdqu (%r12), %xmm13
- movdqa SHUF_MASK(%rip), %xmm2
- PSHUFB_XMM %xmm2, %xmm13
-
-
-# precompute HashKey<<1 mod poly from the HashKey (required for GHASH)
-
- movdqa %xmm13, %xmm2
- psllq $1, %xmm13
- psrlq $63, %xmm2
- movdqa %xmm2, %xmm1
- pslldq $8, %xmm2
- psrldq $8, %xmm1
- por %xmm2, %xmm13
-
- # reduce HashKey<<1
-
- pshufd $0x24, %xmm1, %xmm2
- pcmpeqd TWOONE(%rip), %xmm2
- pand POLY(%rip), %xmm2
- pxor %xmm2, %xmm13
- movdqa %xmm13, HashKey(%rsp)
- mov %arg4, %r13 # %xmm13 holds HashKey<<1 (mod poly)
- and $-16, %r13
- mov %r13, %r12
+SYM_FUNC_START(aesni_gcm_enc)
+ FUNC_SAVE
- # Encrypt first few blocks
+ GCM_INIT %arg6, arg7, arg8, arg9
+ GCM_ENC_DEC enc
- and $(3<<4), %r12
- jz _initial_num_blocks_is_0_encrypt
- cmp $(2<<4), %r12
- jb _initial_num_blocks_is_1_encrypt
- je _initial_num_blocks_is_2_encrypt
-_initial_num_blocks_is_3_encrypt:
- INITIAL_BLOCKS_ENC 3, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
-%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 5, 678, enc
- sub $48, %r13
- jmp _initial_blocks_encrypted
-_initial_num_blocks_is_2_encrypt:
- INITIAL_BLOCKS_ENC 2, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
-%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 6, 78, enc
- sub $32, %r13
- jmp _initial_blocks_encrypted
-_initial_num_blocks_is_1_encrypt:
- INITIAL_BLOCKS_ENC 1, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
-%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 7, 8, enc
- sub $16, %r13
- jmp _initial_blocks_encrypted
-_initial_num_blocks_is_0_encrypt:
- INITIAL_BLOCKS_ENC 0, %xmm9, %xmm10, %xmm13, %xmm11, %xmm12, %xmm0, \
-%xmm1, %xmm2, %xmm3, %xmm4, %xmm8, %xmm5, %xmm6, 8, 0, enc
-_initial_blocks_encrypted:
-
- # Main loop - Encrypt remaining blocks
+ GCM_COMPLETE arg10, arg11
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_enc)
- cmp $0, %r13
- je _zero_cipher_left_encrypt
- sub $64, %r13
- je _four_cipher_left_encrypt
-_encrypt_by_4_encrypt:
- GHASH_4_ENCRYPT_4_PARALLEL_ENC %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, \
-%xmm14, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, enc
- add $64, %r11
- sub $64, %r13
- jne _encrypt_by_4_encrypt
-_four_cipher_left_encrypt:
- GHASH_LAST_4 %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, \
-%xmm15, %xmm1, %xmm2, %xmm3, %xmm4, %xmm8
-_zero_cipher_left_encrypt:
- mov %arg4, %r13
- and $15, %r13 # %r13 = arg4 (mod 16)
- je _multiple_of_16_bytes_encrypt
-
- # Handle the last <16 Byte block separately
- paddd ONE(%rip), %xmm0 # INCR CNT to get Yn
- movdqa SHUF_MASK(%rip), %xmm10
- PSHUFB_XMM %xmm10, %xmm0
-
-
- ENCRYPT_SINGLE_BLOCK %xmm0, %xmm1 # Encrypt(K, Yn)
- sub $16, %r11
- add %r13, %r11
- movdqu (%arg3,%r11,1), %xmm1 # receive the last <16 byte blocks
- lea SHIFT_MASK+16(%rip), %r12
- sub %r13, %r12
- # adjust the shuffle mask pointer to be able to shift 16-r13 bytes
- # (%r13 is the number of bytes in plaintext mod 16)
- movdqu (%r12), %xmm2 # get the appropriate shuffle mask
- PSHUFB_XMM %xmm2, %xmm1 # shift right 16-r13 byte
- pxor %xmm1, %xmm0 # Plaintext XOR Encrypt(K, Yn)
- movdqu ALL_F-SHIFT_MASK(%r12), %xmm1
- # get the appropriate mask to mask out top 16-r13 bytes of xmm0
- pand %xmm1, %xmm0 # mask out top 16-r13 bytes of xmm0
- movdqa SHUF_MASK(%rip), %xmm10
- PSHUFB_XMM %xmm10,%xmm0
-
- pxor %xmm0, %xmm8
- GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6
- # GHASH computation for the last <16 byte block
- sub %r13, %r11
- add $16, %r11
-
- movdqa SHUF_MASK(%rip), %xmm10
- PSHUFB_XMM %xmm10, %xmm0
+/*****************************************************************************
+* void aesni_gcm_init(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary.
+* struct gcm_context_data *data,
+* // context data
+* u8 *iv, // Pre-counter block j0: 4 byte salt (from Security Association)
+* // concatenated with 8 byte Initialisation Vector (from IPSec ESP Payload)
+* // concatenated with 0x00000001. 16-byte aligned pointer.
+* u8 *hash_subkey, // H, the Hash sub key input. Data starts on a 16-byte boundary.
+* const u8 *aad, // Additional Authentication Data (AAD)
+* u64 aad_len) // Length of AAD in bytes.
+*/
+SYM_FUNC_START(aesni_gcm_init)
+ FUNC_SAVE
+ GCM_INIT %arg3, %arg4,%arg5, %arg6
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_init)
- # shuffle xmm0 back to output as ciphertext
+/*****************************************************************************
+* void aesni_gcm_enc_update(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary.
+* struct gcm_context_data *data,
+* // context data
+* u8 *out, // Ciphertext output. Encrypt in-place is allowed.
+* const u8 *in, // Plaintext input
+* u64 plaintext_len, // Length of data in bytes for encryption.
+*/
+SYM_FUNC_START(aesni_gcm_enc_update)
+ FUNC_SAVE
+ GCM_ENC_DEC enc
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_enc_update)
- # Output %r13 bytes
- MOVQ_R64_XMM %xmm0, %rax
- cmp $8, %r13
- jle _less_than_8_bytes_left_encrypt
- mov %rax, (%arg2 , %r11, 1)
- add $8, %r11
- psrldq $8, %xmm0
- MOVQ_R64_XMM %xmm0, %rax
- sub $8, %r13
-_less_than_8_bytes_left_encrypt:
- mov %al, (%arg2, %r11, 1)
- add $1, %r11
- shr $8, %rax
- sub $1, %r13
- jne _less_than_8_bytes_left_encrypt
-_multiple_of_16_bytes_encrypt:
- mov arg8, %r12 # %r12 = addLen (number of bytes)
- shl $3, %r12
- movd %r12d, %xmm15 # len(A) in %xmm15
- shl $3, %arg4 # len(C) in bits (*128)
- MOVQ_R64_XMM %arg4, %xmm1
- pslldq $8, %xmm15 # %xmm15 = len(A)||0x0000000000000000
- pxor %xmm1, %xmm15 # %xmm15 = len(A)||len(C)
- pxor %xmm15, %xmm8
- GHASH_MUL %xmm8, %xmm13, %xmm9, %xmm10, %xmm11, %xmm5, %xmm6
- # final GHASH computation
- movdqa SHUF_MASK(%rip), %xmm10
- PSHUFB_XMM %xmm10, %xmm8 # perform a 16 byte swap
+/*****************************************************************************
+* void aesni_gcm_dec_update(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary.
+* struct gcm_context_data *data,
+* // context data
+* u8 *out, // Ciphertext output. Encrypt in-place is allowed.
+* const u8 *in, // Plaintext input
+* u64 plaintext_len, // Length of data in bytes for encryption.
+*/
+SYM_FUNC_START(aesni_gcm_dec_update)
+ FUNC_SAVE
+ GCM_ENC_DEC dec
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_dec_update)
- mov %arg5, %rax # %rax = *Y0
- movdqu (%rax), %xmm0 # %xmm0 = Y0
- ENCRYPT_SINGLE_BLOCK %xmm0, %xmm15 # Encrypt(K, Y0)
- pxor %xmm8, %xmm0
-_return_T_encrypt:
- mov arg9, %r10 # %r10 = authTag
- mov arg10, %r11 # %r11 = auth_tag_len
- cmp $16, %r11
- je _T_16_encrypt
- cmp $12, %r11
- je _T_12_encrypt
-_T_8_encrypt:
- MOVQ_R64_XMM %xmm0, %rax
- mov %rax, (%r10)
- jmp _return_T_done_encrypt
-_T_12_encrypt:
- MOVQ_R64_XMM %xmm0, %rax
- mov %rax, (%r10)
- psrldq $8, %xmm0
- movd %xmm0, %eax
- mov %eax, 8(%r10)
- jmp _return_T_done_encrypt
-_T_16_encrypt:
- movdqu %xmm0, (%r10)
-_return_T_done_encrypt:
- mov %r14, %rsp
- pop %r14
- pop %r13
- pop %r12
- ret
+/*****************************************************************************
+* void aesni_gcm_finalize(void *aes_ctx, // AES Key schedule. Starts on a 16 byte boundary.
+* struct gcm_context_data *data,
+* // context data
+* u8 *auth_tag, // Authenticated Tag output.
+* u64 auth_tag_len); // Authenticated Tag Length in bytes. Valid values are 16 (most likely),
+* // 12 or 8.
+*/
+SYM_FUNC_START(aesni_gcm_finalize)
+ FUNC_SAVE
+ GCM_COMPLETE %arg3 %arg4
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_finalize)
#endif
-
-_key_expansion_128:
-_key_expansion_256a:
+SYM_FUNC_START_LOCAL(_key_expansion_256a)
pshufd $0b11111111, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
@@ -1714,10 +1760,11 @@ _key_expansion_256a:
pxor %xmm1, %xmm0
movaps %xmm0, (TKEYP)
add $0x10, TKEYP
- ret
+ RET
+SYM_FUNC_END(_key_expansion_256a)
+SYM_FUNC_ALIAS_LOCAL(_key_expansion_128, _key_expansion_256a)
-.align 4
-_key_expansion_192a:
+SYM_FUNC_START_LOCAL(_key_expansion_192a)
pshufd $0b01010101, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
@@ -1738,10 +1785,10 @@ _key_expansion_192a:
shufps $0b01001110, %xmm2, %xmm1
movaps %xmm1, 0x10(TKEYP)
add $0x20, TKEYP
- ret
+ RET
+SYM_FUNC_END(_key_expansion_192a)
-.align 4
-_key_expansion_192b:
+SYM_FUNC_START_LOCAL(_key_expansion_192b)
pshufd $0b01010101, %xmm1, %xmm1
shufps $0b00010000, %xmm0, %xmm4
pxor %xmm4, %xmm0
@@ -1757,10 +1804,10 @@ _key_expansion_192b:
movaps %xmm0, (TKEYP)
add $0x10, TKEYP
- ret
+ RET
+SYM_FUNC_END(_key_expansion_192b)
-.align 4
-_key_expansion_256b:
+SYM_FUNC_START_LOCAL(_key_expansion_256b)
pshufd $0b10101010, %xmm1, %xmm1
shufps $0b00010000, %xmm2, %xmm4
pxor %xmm4, %xmm2
@@ -1769,18 +1816,20 @@ _key_expansion_256b:
pxor %xmm1, %xmm2
movaps %xmm2, (TKEYP)
add $0x10, TKEYP
- ret
+ RET
+SYM_FUNC_END(_key_expansion_256b)
/*
* int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
* unsigned int key_len)
*/
-ENTRY(aesni_set_key)
+SYM_FUNC_START(aesni_set_key)
+ FRAME_BEGIN
#ifndef __x86_64__
pushl KEYP
- movl 8(%esp), KEYP # ctx
- movl 12(%esp), UKEYP # in_key
- movl 16(%esp), %edx # key_len
+ movl (FRAME_OFFSET+8)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+12)(%esp), UKEYP # in_key
+ movl (FRAME_OFFSET+16)(%esp), %edx # key_len
#endif
movups (UKEYP), %xmm0 # user key (first 16 bytes)
movaps %xmm0, (KEYP)
@@ -1793,72 +1842,72 @@ ENTRY(aesni_set_key)
movups 0x10(UKEYP), %xmm2 # other user key
movaps %xmm2, (TKEYP)
add $0x10, TKEYP
- AESKEYGENASSIST 0x1 %xmm2 %xmm1 # round 1
+ aeskeygenassist $0x1, %xmm2, %xmm1 # round 1
call _key_expansion_256a
- AESKEYGENASSIST 0x1 %xmm0 %xmm1
+ aeskeygenassist $0x1, %xmm0, %xmm1
call _key_expansion_256b
- AESKEYGENASSIST 0x2 %xmm2 %xmm1 # round 2
+ aeskeygenassist $0x2, %xmm2, %xmm1 # round 2
call _key_expansion_256a
- AESKEYGENASSIST 0x2 %xmm0 %xmm1
+ aeskeygenassist $0x2, %xmm0, %xmm1
call _key_expansion_256b
- AESKEYGENASSIST 0x4 %xmm2 %xmm1 # round 3
+ aeskeygenassist $0x4, %xmm2, %xmm1 # round 3
call _key_expansion_256a
- AESKEYGENASSIST 0x4 %xmm0 %xmm1
+ aeskeygenassist $0x4, %xmm0, %xmm1
call _key_expansion_256b
- AESKEYGENASSIST 0x8 %xmm2 %xmm1 # round 4
+ aeskeygenassist $0x8, %xmm2, %xmm1 # round 4
call _key_expansion_256a
- AESKEYGENASSIST 0x8 %xmm0 %xmm1
+ aeskeygenassist $0x8, %xmm0, %xmm1
call _key_expansion_256b
- AESKEYGENASSIST 0x10 %xmm2 %xmm1 # round 5
+ aeskeygenassist $0x10, %xmm2, %xmm1 # round 5
call _key_expansion_256a
- AESKEYGENASSIST 0x10 %xmm0 %xmm1
+ aeskeygenassist $0x10, %xmm0, %xmm1
call _key_expansion_256b
- AESKEYGENASSIST 0x20 %xmm2 %xmm1 # round 6
+ aeskeygenassist $0x20, %xmm2, %xmm1 # round 6
call _key_expansion_256a
- AESKEYGENASSIST 0x20 %xmm0 %xmm1
+ aeskeygenassist $0x20, %xmm0, %xmm1
call _key_expansion_256b
- AESKEYGENASSIST 0x40 %xmm2 %xmm1 # round 7
+ aeskeygenassist $0x40, %xmm2, %xmm1 # round 7
call _key_expansion_256a
jmp .Ldec_key
.Lenc_key192:
movq 0x10(UKEYP), %xmm2 # other user key
- AESKEYGENASSIST 0x1 %xmm2 %xmm1 # round 1
+ aeskeygenassist $0x1, %xmm2, %xmm1 # round 1
call _key_expansion_192a
- AESKEYGENASSIST 0x2 %xmm2 %xmm1 # round 2
+ aeskeygenassist $0x2, %xmm2, %xmm1 # round 2
call _key_expansion_192b
- AESKEYGENASSIST 0x4 %xmm2 %xmm1 # round 3
+ aeskeygenassist $0x4, %xmm2, %xmm1 # round 3
call _key_expansion_192a
- AESKEYGENASSIST 0x8 %xmm2 %xmm1 # round 4
+ aeskeygenassist $0x8, %xmm2, %xmm1 # round 4
call _key_expansion_192b
- AESKEYGENASSIST 0x10 %xmm2 %xmm1 # round 5
+ aeskeygenassist $0x10, %xmm2, %xmm1 # round 5
call _key_expansion_192a
- AESKEYGENASSIST 0x20 %xmm2 %xmm1 # round 6
+ aeskeygenassist $0x20, %xmm2, %xmm1 # round 6
call _key_expansion_192b
- AESKEYGENASSIST 0x40 %xmm2 %xmm1 # round 7
+ aeskeygenassist $0x40, %xmm2, %xmm1 # round 7
call _key_expansion_192a
- AESKEYGENASSIST 0x80 %xmm2 %xmm1 # round 8
+ aeskeygenassist $0x80, %xmm2, %xmm1 # round 8
call _key_expansion_192b
jmp .Ldec_key
.Lenc_key128:
- AESKEYGENASSIST 0x1 %xmm0 %xmm1 # round 1
+ aeskeygenassist $0x1, %xmm0, %xmm1 # round 1
call _key_expansion_128
- AESKEYGENASSIST 0x2 %xmm0 %xmm1 # round 2
+ aeskeygenassist $0x2, %xmm0, %xmm1 # round 2
call _key_expansion_128
- AESKEYGENASSIST 0x4 %xmm0 %xmm1 # round 3
+ aeskeygenassist $0x4, %xmm0, %xmm1 # round 3
call _key_expansion_128
- AESKEYGENASSIST 0x8 %xmm0 %xmm1 # round 4
+ aeskeygenassist $0x8, %xmm0, %xmm1 # round 4
call _key_expansion_128
- AESKEYGENASSIST 0x10 %xmm0 %xmm1 # round 5
+ aeskeygenassist $0x10, %xmm0, %xmm1 # round 5
call _key_expansion_128
- AESKEYGENASSIST 0x20 %xmm0 %xmm1 # round 6
+ aeskeygenassist $0x20, %xmm0, %xmm1 # round 6
call _key_expansion_128
- AESKEYGENASSIST 0x40 %xmm0 %xmm1 # round 7
+ aeskeygenassist $0x40, %xmm0, %xmm1 # round 7
call _key_expansion_128
- AESKEYGENASSIST 0x80 %xmm0 %xmm1 # round 8
+ aeskeygenassist $0x80, %xmm0, %xmm1 # round 8
call _key_expansion_128
- AESKEYGENASSIST 0x1b %xmm0 %xmm1 # round 9
+ aeskeygenassist $0x1b, %xmm0, %xmm1 # round 9
call _key_expansion_128
- AESKEYGENASSIST 0x36 %xmm0 %xmm1 # round 10
+ aeskeygenassist $0x36, %xmm0, %xmm1 # round 10
call _key_expansion_128
.Ldec_key:
sub $0x10, TKEYP
@@ -1871,7 +1920,7 @@ ENTRY(aesni_set_key)
.align 4
.Ldec_key_loop:
movaps (KEYP), %xmm0
- AESIMC %xmm0 %xmm1
+ aesimc %xmm0, %xmm1
movaps %xmm1, (UKEYP)
add $0x10, KEYP
sub $0x10, UKEYP
@@ -1881,18 +1930,21 @@ ENTRY(aesni_set_key)
#ifndef __x86_64__
popl KEYP
#endif
- ret
+ FRAME_END
+ RET
+SYM_FUNC_END(aesni_set_key)
/*
- * void aesni_enc(struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
+ * void aesni_enc(const void *ctx, u8 *dst, const u8 *src)
*/
-ENTRY(aesni_enc)
+SYM_FUNC_START(aesni_enc)
+ FRAME_BEGIN
#ifndef __x86_64__
pushl KEYP
pushl KLEN
- movl 12(%esp), KEYP
- movl 16(%esp), OUTP
- movl 20(%esp), INP
+ movl (FRAME_OFFSET+12)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+16)(%esp), OUTP # dst
+ movl (FRAME_OFFSET+20)(%esp), INP # src
#endif
movl 480(KEYP), KLEN # key length
movups (INP), STATE # input
@@ -1902,7 +1954,9 @@ ENTRY(aesni_enc)
popl KLEN
popl KEYP
#endif
- ret
+ FRAME_END
+ RET
+SYM_FUNC_END(aesni_enc)
/*
* _aesni_enc1: internal ABI
@@ -1916,8 +1970,7 @@ ENTRY(aesni_enc)
* KEY
* TKEYP (T1)
*/
-.align 4
-_aesni_enc1:
+SYM_FUNC_START_LOCAL(_aesni_enc1)
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE # round 0
@@ -1928,38 +1981,39 @@ _aesni_enc1:
je .Lenc192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps -0x50(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
.align 4
.Lenc192:
movaps -0x40(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps -0x30(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
.align 4
.Lenc128:
movaps -0x20(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps -0x10(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps (TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps 0x10(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps 0x20(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps 0x30(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps 0x40(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps 0x50(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps 0x60(TKEYP), KEY
- AESENC KEY STATE
+ aesenc KEY, STATE
movaps 0x70(TKEYP), KEY
- AESENCLAST KEY STATE
- ret
+ aesenclast KEY, STATE
+ RET
+SYM_FUNC_END(_aesni_enc1)
/*
* _aesni_enc4: internal ABI
@@ -1979,8 +2033,7 @@ _aesni_enc1:
* KEY
* TKEYP (T1)
*/
-.align 4
-_aesni_enc4:
+SYM_FUNC_START_LOCAL(_aesni_enc4)
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE1 # round 0
@@ -1994,91 +2047,93 @@ _aesni_enc4:
je .L4enc192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps -0x50(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
#.align 4
.L4enc192:
movaps -0x40(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps -0x30(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
#.align 4
.L4enc128:
movaps -0x20(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps -0x10(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps (TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps 0x10(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps 0x20(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps 0x30(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps 0x40(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps 0x50(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps 0x60(TKEYP), KEY
- AESENC KEY STATE1
- AESENC KEY STATE2
- AESENC KEY STATE3
- AESENC KEY STATE4
+ aesenc KEY, STATE1
+ aesenc KEY, STATE2
+ aesenc KEY, STATE3
+ aesenc KEY, STATE4
movaps 0x70(TKEYP), KEY
- AESENCLAST KEY STATE1 # last round
- AESENCLAST KEY STATE2
- AESENCLAST KEY STATE3
- AESENCLAST KEY STATE4
- ret
+ aesenclast KEY, STATE1 # last round
+ aesenclast KEY, STATE2
+ aesenclast KEY, STATE3
+ aesenclast KEY, STATE4
+ RET
+SYM_FUNC_END(_aesni_enc4)
/*
- * void aesni_dec (struct crypto_aes_ctx *ctx, u8 *dst, const u8 *src)
+ * void aesni_dec (const void *ctx, u8 *dst, const u8 *src)
*/
-ENTRY(aesni_dec)
+SYM_FUNC_START(aesni_dec)
+ FRAME_BEGIN
#ifndef __x86_64__
pushl KEYP
pushl KLEN
- movl 12(%esp), KEYP
- movl 16(%esp), OUTP
- movl 20(%esp), INP
+ movl (FRAME_OFFSET+12)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+16)(%esp), OUTP # dst
+ movl (FRAME_OFFSET+20)(%esp), INP # src
#endif
mov 480(KEYP), KLEN # key length
add $240, KEYP
@@ -2089,7 +2144,9 @@ ENTRY(aesni_dec)
popl KLEN
popl KEYP
#endif
- ret
+ FRAME_END
+ RET
+SYM_FUNC_END(aesni_dec)
/*
* _aesni_dec1: internal ABI
@@ -2103,8 +2160,7 @@ ENTRY(aesni_dec)
* KEY
* TKEYP (T1)
*/
-.align 4
-_aesni_dec1:
+SYM_FUNC_START_LOCAL(_aesni_dec1)
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE # round 0
@@ -2115,38 +2171,39 @@ _aesni_dec1:
je .Ldec192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps -0x50(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
.align 4
.Ldec192:
movaps -0x40(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps -0x30(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
.align 4
.Ldec128:
movaps -0x20(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps -0x10(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps (TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps 0x10(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps 0x20(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps 0x30(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps 0x40(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps 0x50(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps 0x60(TKEYP), KEY
- AESDEC KEY STATE
+ aesdec KEY, STATE
movaps 0x70(TKEYP), KEY
- AESDECLAST KEY STATE
- ret
+ aesdeclast KEY, STATE
+ RET
+SYM_FUNC_END(_aesni_dec1)
/*
* _aesni_dec4: internal ABI
@@ -2166,8 +2223,7 @@ _aesni_dec1:
* KEY
* TKEYP (T1)
*/
-.align 4
-_aesni_dec4:
+SYM_FUNC_START_LOCAL(_aesni_dec4)
movaps (KEYP), KEY # key
mov KEYP, TKEYP
pxor KEY, STATE1 # round 0
@@ -2181,94 +2237,96 @@ _aesni_dec4:
je .L4dec192
add $0x20, TKEYP
movaps -0x60(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps -0x50(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
.align 4
.L4dec192:
movaps -0x40(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps -0x30(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
.align 4
.L4dec128:
movaps -0x20(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps -0x10(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps (TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps 0x10(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps 0x20(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps 0x30(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps 0x40(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps 0x50(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps 0x60(TKEYP), KEY
- AESDEC KEY STATE1
- AESDEC KEY STATE2
- AESDEC KEY STATE3
- AESDEC KEY STATE4
+ aesdec KEY, STATE1
+ aesdec KEY, STATE2
+ aesdec KEY, STATE3
+ aesdec KEY, STATE4
movaps 0x70(TKEYP), KEY
- AESDECLAST KEY STATE1 # last round
- AESDECLAST KEY STATE2
- AESDECLAST KEY STATE3
- AESDECLAST KEY STATE4
- ret
+ aesdeclast KEY, STATE1 # last round
+ aesdeclast KEY, STATE2
+ aesdeclast KEY, STATE3
+ aesdeclast KEY, STATE4
+ RET
+SYM_FUNC_END(_aesni_dec4)
/*
* void aesni_ecb_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len)
*/
-ENTRY(aesni_ecb_enc)
+SYM_FUNC_START(aesni_ecb_enc)
+ FRAME_BEGIN
#ifndef __x86_64__
pushl LEN
pushl KEYP
pushl KLEN
- movl 16(%esp), KEYP
- movl 20(%esp), OUTP
- movl 24(%esp), INP
- movl 28(%esp), LEN
+ movl (FRAME_OFFSET+16)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+20)(%esp), OUTP # dst
+ movl (FRAME_OFFSET+24)(%esp), INP # src
+ movl (FRAME_OFFSET+28)(%esp), LEN # len
#endif
test LEN, LEN # check length
jz .Lecb_enc_ret
@@ -2311,21 +2369,24 @@ ENTRY(aesni_ecb_enc)
popl KEYP
popl LEN
#endif
- ret
+ FRAME_END
+ RET
+SYM_FUNC_END(aesni_ecb_enc)
/*
* void aesni_ecb_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len);
*/
-ENTRY(aesni_ecb_dec)
+SYM_FUNC_START(aesni_ecb_dec)
+ FRAME_BEGIN
#ifndef __x86_64__
pushl LEN
pushl KEYP
pushl KLEN
- movl 16(%esp), KEYP
- movl 20(%esp), OUTP
- movl 24(%esp), INP
- movl 28(%esp), LEN
+ movl (FRAME_OFFSET+16)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+20)(%esp), OUTP # dst
+ movl (FRAME_OFFSET+24)(%esp), INP # src
+ movl (FRAME_OFFSET+28)(%esp), LEN # len
#endif
test LEN, LEN
jz .Lecb_dec_ret
@@ -2369,23 +2430,26 @@ ENTRY(aesni_ecb_dec)
popl KEYP
popl LEN
#endif
- ret
+ FRAME_END
+ RET
+SYM_FUNC_END(aesni_ecb_dec)
/*
* void aesni_cbc_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len, u8 *iv)
*/
-ENTRY(aesni_cbc_enc)
+SYM_FUNC_START(aesni_cbc_enc)
+ FRAME_BEGIN
#ifndef __x86_64__
pushl IVP
pushl LEN
pushl KEYP
pushl KLEN
- movl 20(%esp), KEYP
- movl 24(%esp), OUTP
- movl 28(%esp), INP
- movl 32(%esp), LEN
- movl 36(%esp), IVP
+ movl (FRAME_OFFSET+20)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+24)(%esp), OUTP # dst
+ movl (FRAME_OFFSET+28)(%esp), INP # src
+ movl (FRAME_OFFSET+32)(%esp), LEN # len
+ movl (FRAME_OFFSET+36)(%esp), IVP # iv
#endif
cmp $16, LEN
jb .Lcbc_enc_ret
@@ -2410,23 +2474,26 @@ ENTRY(aesni_cbc_enc)
popl LEN
popl IVP
#endif
- ret
+ FRAME_END
+ RET
+SYM_FUNC_END(aesni_cbc_enc)
/*
* void aesni_cbc_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len, u8 *iv)
*/
-ENTRY(aesni_cbc_dec)
+SYM_FUNC_START(aesni_cbc_dec)
+ FRAME_BEGIN
#ifndef __x86_64__
pushl IVP
pushl LEN
pushl KEYP
pushl KLEN
- movl 20(%esp), KEYP
- movl 24(%esp), OUTP
- movl 28(%esp), INP
- movl 32(%esp), LEN
- movl 36(%esp), IVP
+ movl (FRAME_OFFSET+20)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+24)(%esp), OUTP # dst
+ movl (FRAME_OFFSET+28)(%esp), INP # src
+ movl (FRAME_OFFSET+32)(%esp), LEN # len
+ movl (FRAME_OFFSET+36)(%esp), IVP # iv
#endif
cmp $16, LEN
jb .Lcbc_dec_just_ret
@@ -2460,10 +2527,12 @@ ENTRY(aesni_cbc_dec)
pxor IN3, STATE4
movaps IN4, IV
#else
- pxor (INP), STATE2
- pxor 0x10(INP), STATE3
pxor IN1, STATE4
movaps IN2, IV
+ movups (INP), IN1
+ pxor IN1, STATE2
+ movups 0x10(INP), IN2
+ pxor IN2, STATE3
#endif
movups STATE1, (OUTP)
movups STATE2, 0x10(OUTP)
@@ -2498,13 +2567,144 @@ ENTRY(aesni_cbc_dec)
popl LEN
popl IVP
#endif
- ret
+ FRAME_END
+ RET
+SYM_FUNC_END(aesni_cbc_dec)
-#ifdef __x86_64__
+/*
+ * void aesni_cts_cbc_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
+ * size_t len, u8 *iv)
+ */
+SYM_FUNC_START(aesni_cts_cbc_enc)
+ FRAME_BEGIN
+#ifndef __x86_64__
+ pushl IVP
+ pushl LEN
+ pushl KEYP
+ pushl KLEN
+ movl (FRAME_OFFSET+20)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+24)(%esp), OUTP # dst
+ movl (FRAME_OFFSET+28)(%esp), INP # src
+ movl (FRAME_OFFSET+32)(%esp), LEN # len
+ movl (FRAME_OFFSET+36)(%esp), IVP # iv
+ lea .Lcts_permute_table, T1
+#else
+ lea .Lcts_permute_table(%rip), T1
+#endif
+ mov 480(KEYP), KLEN
+ movups (IVP), STATE
+ sub $16, LEN
+ mov T1, IVP
+ add $32, IVP
+ add LEN, T1
+ sub LEN, IVP
+ movups (T1), %xmm4
+ movups (IVP), %xmm5
+
+ movups (INP), IN1
+ add LEN, INP
+ movups (INP), IN2
+
+ pxor IN1, STATE
+ call _aesni_enc1
+
+ pshufb %xmm5, IN2
+ pxor STATE, IN2
+ pshufb %xmm4, STATE
+ add OUTP, LEN
+ movups STATE, (LEN)
+
+ movaps IN2, STATE
+ call _aesni_enc1
+ movups STATE, (OUTP)
+
+#ifndef __x86_64__
+ popl KLEN
+ popl KEYP
+ popl LEN
+ popl IVP
+#endif
+ FRAME_END
+ RET
+SYM_FUNC_END(aesni_cts_cbc_enc)
+
+/*
+ * void aesni_cts_cbc_dec(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
+ * size_t len, u8 *iv)
+ */
+SYM_FUNC_START(aesni_cts_cbc_dec)
+ FRAME_BEGIN
+#ifndef __x86_64__
+ pushl IVP
+ pushl LEN
+ pushl KEYP
+ pushl KLEN
+ movl (FRAME_OFFSET+20)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+24)(%esp), OUTP # dst
+ movl (FRAME_OFFSET+28)(%esp), INP # src
+ movl (FRAME_OFFSET+32)(%esp), LEN # len
+ movl (FRAME_OFFSET+36)(%esp), IVP # iv
+ lea .Lcts_permute_table, T1
+#else
+ lea .Lcts_permute_table(%rip), T1
+#endif
+ mov 480(KEYP), KLEN
+ add $240, KEYP
+ movups (IVP), IV
+ sub $16, LEN
+ mov T1, IVP
+ add $32, IVP
+ add LEN, T1
+ sub LEN, IVP
+ movups (T1), %xmm4
+
+ movups (INP), STATE
+ add LEN, INP
+ movups (INP), IN1
+
+ call _aesni_dec1
+ movaps STATE, IN2
+ pshufb %xmm4, STATE
+ pxor IN1, STATE
+
+ add OUTP, LEN
+ movups STATE, (LEN)
+
+ movups (IVP), %xmm0
+ pshufb %xmm0, IN1
+ pblendvb IN2, IN1
+ movaps IN1, STATE
+ call _aesni_dec1
+
+ pxor IV, STATE
+ movups STATE, (OUTP)
+
+#ifndef __x86_64__
+ popl KLEN
+ popl KEYP
+ popl LEN
+ popl IVP
+#endif
+ FRAME_END
+ RET
+SYM_FUNC_END(aesni_cts_cbc_dec)
+
+.pushsection .rodata
.align 16
+.Lcts_permute_table:
+ .byte 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80
+ .byte 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80
+ .byte 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07
+ .byte 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f
+ .byte 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80
+ .byte 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80, 0x80
+#ifdef __x86_64__
.Lbswap_mask:
.byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+#endif
+.popsection
+#ifdef __x86_64__
/*
* _aesni_inc_init: internal ABI
* setup registers used by _aesni_inc
@@ -2516,15 +2716,15 @@ ENTRY(aesni_cbc_dec)
* INC: == 1, in little endian
* BSWAP_MASK == endian swapping mask
*/
-.align 4
-_aesni_inc_init:
- movaps .Lbswap_mask, BSWAP_MASK
+SYM_FUNC_START_LOCAL(_aesni_inc_init)
+ movaps .Lbswap_mask(%rip), BSWAP_MASK
movaps IV, CTR
- PSHUFB_XMM BSWAP_MASK CTR
+ pshufb BSWAP_MASK, CTR
mov $1, TCTR_LOW
- MOVQ_R64_XMM TCTR_LOW INC
- MOVQ_R64_XMM CTR TCTR_LOW
- ret
+ movq TCTR_LOW, INC
+ movq CTR, TCTR_LOW
+ RET
+SYM_FUNC_END(_aesni_inc_init)
/*
* _aesni_inc: internal ABI
@@ -2541,8 +2741,7 @@ _aesni_inc_init:
* CTR: == output IV, in little endian
* TCTR_LOW: == lower qword of CTR
*/
-.align 4
-_aesni_inc:
+SYM_FUNC_START_LOCAL(_aesni_inc)
paddq INC, CTR
add $1, TCTR_LOW
jnc .Linc_low
@@ -2551,14 +2750,16 @@ _aesni_inc:
psrldq $8, INC
.Linc_low:
movaps CTR, IV
- PSHUFB_XMM BSWAP_MASK IV
- ret
+ pshufb BSWAP_MASK, IV
+ RET
+SYM_FUNC_END(_aesni_inc)
/*
* void aesni_ctr_enc(struct crypto_aes_ctx *ctx, const u8 *dst, u8 *src,
* size_t len, u8 *iv)
*/
-ENTRY(aesni_ctr_enc)
+SYM_FUNC_START(aesni_ctr_enc)
+ FRAME_BEGIN
cmp $16, LEN
jb .Lctr_enc_just_ret
mov 480(KEYP), KLEN
@@ -2612,5 +2813,349 @@ ENTRY(aesni_ctr_enc)
.Lctr_enc_ret:
movups IV, (IVP)
.Lctr_enc_just_ret:
- ret
+ FRAME_END
+ RET
+SYM_FUNC_END(aesni_ctr_enc)
+
+#endif
+
+.section .rodata.cst16.gf128mul_x_ble_mask, "aM", @progbits, 16
+.align 16
+.Lgf128mul_x_ble_mask:
+ .octa 0x00000000000000010000000000000087
+.previous
+
+/*
+ * _aesni_gf128mul_x_ble: internal ABI
+ * Multiply in GF(2^128) for XTS IVs
+ * input:
+ * IV: current IV
+ * GF128MUL_MASK == mask with 0x87 and 0x01
+ * output:
+ * IV: next IV
+ * changed:
+ * CTR: == temporary value
+ */
+#define _aesni_gf128mul_x_ble() \
+ pshufd $0x13, IV, KEY; \
+ paddq IV, IV; \
+ psrad $31, KEY; \
+ pand GF128MUL_MASK, KEY; \
+ pxor KEY, IV;
+
+/*
+ * void aesni_xts_encrypt(const struct crypto_aes_ctx *ctx, u8 *dst,
+ * const u8 *src, unsigned int len, le128 *iv)
+ */
+SYM_FUNC_START(aesni_xts_encrypt)
+ FRAME_BEGIN
+#ifndef __x86_64__
+ pushl IVP
+ pushl LEN
+ pushl KEYP
+ pushl KLEN
+ movl (FRAME_OFFSET+20)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+24)(%esp), OUTP # dst
+ movl (FRAME_OFFSET+28)(%esp), INP # src
+ movl (FRAME_OFFSET+32)(%esp), LEN # len
+ movl (FRAME_OFFSET+36)(%esp), IVP # iv
+ movdqa .Lgf128mul_x_ble_mask, GF128MUL_MASK
+#else
+ movdqa .Lgf128mul_x_ble_mask(%rip), GF128MUL_MASK
+#endif
+ movups (IVP), IV
+
+ mov 480(KEYP), KLEN
+
+.Lxts_enc_loop4:
+ sub $64, LEN
+ jl .Lxts_enc_1x
+
+ movdqa IV, STATE1
+ movdqu 0x00(INP), IN
+ pxor IN, STATE1
+ movdqu IV, 0x00(OUTP)
+
+ _aesni_gf128mul_x_ble()
+ movdqa IV, STATE2
+ movdqu 0x10(INP), IN
+ pxor IN, STATE2
+ movdqu IV, 0x10(OUTP)
+
+ _aesni_gf128mul_x_ble()
+ movdqa IV, STATE3
+ movdqu 0x20(INP), IN
+ pxor IN, STATE3
+ movdqu IV, 0x20(OUTP)
+
+ _aesni_gf128mul_x_ble()
+ movdqa IV, STATE4
+ movdqu 0x30(INP), IN
+ pxor IN, STATE4
+ movdqu IV, 0x30(OUTP)
+
+ call _aesni_enc4
+
+ movdqu 0x00(OUTP), IN
+ pxor IN, STATE1
+ movdqu STATE1, 0x00(OUTP)
+
+ movdqu 0x10(OUTP), IN
+ pxor IN, STATE2
+ movdqu STATE2, 0x10(OUTP)
+
+ movdqu 0x20(OUTP), IN
+ pxor IN, STATE3
+ movdqu STATE3, 0x20(OUTP)
+
+ movdqu 0x30(OUTP), IN
+ pxor IN, STATE4
+ movdqu STATE4, 0x30(OUTP)
+
+ _aesni_gf128mul_x_ble()
+
+ add $64, INP
+ add $64, OUTP
+ test LEN, LEN
+ jnz .Lxts_enc_loop4
+
+.Lxts_enc_ret_iv:
+ movups IV, (IVP)
+
+.Lxts_enc_ret:
+#ifndef __x86_64__
+ popl KLEN
+ popl KEYP
+ popl LEN
+ popl IVP
+#endif
+ FRAME_END
+ RET
+
+.Lxts_enc_1x:
+ add $64, LEN
+ jz .Lxts_enc_ret_iv
+ sub $16, LEN
+ jl .Lxts_enc_cts4
+
+.Lxts_enc_loop1:
+ movdqu (INP), STATE
+ pxor IV, STATE
+ call _aesni_enc1
+ pxor IV, STATE
+ _aesni_gf128mul_x_ble()
+
+ test LEN, LEN
+ jz .Lxts_enc_out
+
+ add $16, INP
+ sub $16, LEN
+ jl .Lxts_enc_cts1
+
+ movdqu STATE, (OUTP)
+ add $16, OUTP
+ jmp .Lxts_enc_loop1
+
+.Lxts_enc_out:
+ movdqu STATE, (OUTP)
+ jmp .Lxts_enc_ret_iv
+
+.Lxts_enc_cts4:
+ movdqa STATE4, STATE
+ sub $16, OUTP
+
+.Lxts_enc_cts1:
+#ifndef __x86_64__
+ lea .Lcts_permute_table, T1
+#else
+ lea .Lcts_permute_table(%rip), T1
#endif
+ add LEN, INP /* rewind input pointer */
+ add $16, LEN /* # bytes in final block */
+ movups (INP), IN1
+
+ mov T1, IVP
+ add $32, IVP
+ add LEN, T1
+ sub LEN, IVP
+ add OUTP, LEN
+
+ movups (T1), %xmm4
+ movaps STATE, IN2
+ pshufb %xmm4, STATE
+ movups STATE, (LEN)
+
+ movups (IVP), %xmm0
+ pshufb %xmm0, IN1
+ pblendvb IN2, IN1
+ movaps IN1, STATE
+
+ pxor IV, STATE
+ call _aesni_enc1
+ pxor IV, STATE
+
+ movups STATE, (OUTP)
+ jmp .Lxts_enc_ret
+SYM_FUNC_END(aesni_xts_encrypt)
+
+/*
+ * void aesni_xts_decrypt(const struct crypto_aes_ctx *ctx, u8 *dst,
+ * const u8 *src, unsigned int len, le128 *iv)
+ */
+SYM_FUNC_START(aesni_xts_decrypt)
+ FRAME_BEGIN
+#ifndef __x86_64__
+ pushl IVP
+ pushl LEN
+ pushl KEYP
+ pushl KLEN
+ movl (FRAME_OFFSET+20)(%esp), KEYP # ctx
+ movl (FRAME_OFFSET+24)(%esp), OUTP # dst
+ movl (FRAME_OFFSET+28)(%esp), INP # src
+ movl (FRAME_OFFSET+32)(%esp), LEN # len
+ movl (FRAME_OFFSET+36)(%esp), IVP # iv
+ movdqa .Lgf128mul_x_ble_mask, GF128MUL_MASK
+#else
+ movdqa .Lgf128mul_x_ble_mask(%rip), GF128MUL_MASK
+#endif
+ movups (IVP), IV
+
+ mov 480(KEYP), KLEN
+ add $240, KEYP
+
+ test $15, LEN
+ jz .Lxts_dec_loop4
+ sub $16, LEN
+
+.Lxts_dec_loop4:
+ sub $64, LEN
+ jl .Lxts_dec_1x
+
+ movdqa IV, STATE1
+ movdqu 0x00(INP), IN
+ pxor IN, STATE1
+ movdqu IV, 0x00(OUTP)
+
+ _aesni_gf128mul_x_ble()
+ movdqa IV, STATE2
+ movdqu 0x10(INP), IN
+ pxor IN, STATE2
+ movdqu IV, 0x10(OUTP)
+
+ _aesni_gf128mul_x_ble()
+ movdqa IV, STATE3
+ movdqu 0x20(INP), IN
+ pxor IN, STATE3
+ movdqu IV, 0x20(OUTP)
+
+ _aesni_gf128mul_x_ble()
+ movdqa IV, STATE4
+ movdqu 0x30(INP), IN
+ pxor IN, STATE4
+ movdqu IV, 0x30(OUTP)
+
+ call _aesni_dec4
+
+ movdqu 0x00(OUTP), IN
+ pxor IN, STATE1
+ movdqu STATE1, 0x00(OUTP)
+
+ movdqu 0x10(OUTP), IN
+ pxor IN, STATE2
+ movdqu STATE2, 0x10(OUTP)
+
+ movdqu 0x20(OUTP), IN
+ pxor IN, STATE3
+ movdqu STATE3, 0x20(OUTP)
+
+ movdqu 0x30(OUTP), IN
+ pxor IN, STATE4
+ movdqu STATE4, 0x30(OUTP)
+
+ _aesni_gf128mul_x_ble()
+
+ add $64, INP
+ add $64, OUTP
+ test LEN, LEN
+ jnz .Lxts_dec_loop4
+
+.Lxts_dec_ret_iv:
+ movups IV, (IVP)
+
+.Lxts_dec_ret:
+#ifndef __x86_64__
+ popl KLEN
+ popl KEYP
+ popl LEN
+ popl IVP
+#endif
+ FRAME_END
+ RET
+
+.Lxts_dec_1x:
+ add $64, LEN
+ jz .Lxts_dec_ret_iv
+
+.Lxts_dec_loop1:
+ movdqu (INP), STATE
+
+ add $16, INP
+ sub $16, LEN
+ jl .Lxts_dec_cts1
+
+ pxor IV, STATE
+ call _aesni_dec1
+ pxor IV, STATE
+ _aesni_gf128mul_x_ble()
+
+ test LEN, LEN
+ jz .Lxts_dec_out
+
+ movdqu STATE, (OUTP)
+ add $16, OUTP
+ jmp .Lxts_dec_loop1
+
+.Lxts_dec_out:
+ movdqu STATE, (OUTP)
+ jmp .Lxts_dec_ret_iv
+
+.Lxts_dec_cts1:
+ movdqa IV, STATE4
+ _aesni_gf128mul_x_ble()
+
+ pxor IV, STATE
+ call _aesni_dec1
+ pxor IV, STATE
+
+#ifndef __x86_64__
+ lea .Lcts_permute_table, T1
+#else
+ lea .Lcts_permute_table(%rip), T1
+#endif
+ add LEN, INP /* rewind input pointer */
+ add $16, LEN /* # bytes in final block */
+ movups (INP), IN1
+
+ mov T1, IVP
+ add $32, IVP
+ add LEN, T1
+ sub LEN, IVP
+ add OUTP, LEN
+
+ movups (T1), %xmm4
+ movaps STATE, IN2
+ pshufb %xmm4, STATE
+ movups STATE, (LEN)
+
+ movups (IVP), %xmm0
+ pshufb %xmm0, IN1
+ pblendvb IN2, IN1
+ movaps IN1, STATE
+
+ pxor STATE4, STATE
+ call _aesni_dec1
+ pxor STATE4, STATE
+
+ movups STATE, (OUTP)
+ jmp .Lxts_dec_ret
+SYM_FUNC_END(aesni_xts_decrypt)
diff --git a/arch/x86/crypto/aesni-intel_avx-x86_64.S b/arch/x86/crypto/aesni-intel_avx-x86_64.S
new file mode 100644
index 000000000000..46cddd78857b
--- /dev/null
+++ b/arch/x86/crypto/aesni-intel_avx-x86_64.S
@@ -0,0 +1,2804 @@
+########################################################################
+# Copyright (c) 2013, Intel Corporation
+#
+# This software is available to you under a choice of one of two
+# licenses. You may choose to be licensed under the terms of the GNU
+# General Public License (GPL) Version 2, available from the file
+# COPYING in the main directory of this source tree, or the
+# OpenIB.org BSD license below:
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the
+# distribution.
+#
+# * Neither the name of the Intel Corporation nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+#
+# THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES# LOSS OF USE, DATA, OR
+# PROFITS# OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+########################################################################
+##
+## Authors:
+## Erdinc Ozturk <erdinc.ozturk@intel.com>
+## Vinodh Gopal <vinodh.gopal@intel.com>
+## James Guilford <james.guilford@intel.com>
+## Tim Chen <tim.c.chen@linux.intel.com>
+##
+## References:
+## This code was derived and highly optimized from the code described in paper:
+## Vinodh Gopal et. al. Optimized Galois-Counter-Mode Implementation
+## on Intel Architecture Processors. August, 2010
+## The details of the implementation is explained in:
+## Erdinc Ozturk et. al. Enabling High-Performance Galois-Counter-Mode
+## on Intel Architecture Processors. October, 2012.
+##
+## Assumptions:
+##
+##
+##
+## iv:
+## 0 1 2 3
+## 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+## | Salt (From the SA) |
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+## | Initialization Vector |
+## | (This is the sequence number from IPSec header) |
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+## | 0x1 |
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##
+##
+##
+## AAD:
+## AAD padded to 128 bits with 0
+## for example, assume AAD is a u32 vector
+##
+## if AAD is 8 bytes:
+## AAD[3] = {A0, A1}#
+## padded AAD in xmm register = {A1 A0 0 0}
+##
+## 0 1 2 3
+## 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+## | SPI (A1) |
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+## | 32-bit Sequence Number (A0) |
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+## | 0x0 |
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##
+## AAD Format with 32-bit Sequence Number
+##
+## if AAD is 12 bytes:
+## AAD[3] = {A0, A1, A2}#
+## padded AAD in xmm register = {A2 A1 A0 0}
+##
+## 0 1 2 3
+## 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+## | SPI (A2) |
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+## | 64-bit Extended Sequence Number {A1,A0} |
+## | |
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+## | 0x0 |
+## +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+##
+## AAD Format with 64-bit Extended Sequence Number
+##
+##
+## aadLen:
+## from the definition of the spec, aadLen can only be 8 or 12 bytes.
+## The code additionally supports aadLen of length 16 bytes.
+##
+## TLen:
+## from the definition of the spec, TLen can only be 8, 12 or 16 bytes.
+##
+## poly = x^128 + x^127 + x^126 + x^121 + 1
+## throughout the code, one tab and two tab indentations are used. one tab is
+## for GHASH part, two tabs is for AES part.
+##
+
+#include <linux/linkage.h>
+
+# constants in mergeable sections, linker can reorder and merge
+.section .rodata.cst16.POLY, "aM", @progbits, 16
+.align 16
+POLY: .octa 0xC2000000000000000000000000000001
+
+.section .rodata.cst16.POLY2, "aM", @progbits, 16
+.align 16
+POLY2: .octa 0xC20000000000000000000001C2000000
+
+.section .rodata.cst16.TWOONE, "aM", @progbits, 16
+.align 16
+TWOONE: .octa 0x00000001000000000000000000000001
+
+.section .rodata.cst16.SHUF_MASK, "aM", @progbits, 16
+.align 16
+SHUF_MASK: .octa 0x000102030405060708090A0B0C0D0E0F
+
+.section .rodata.cst16.ONE, "aM", @progbits, 16
+.align 16
+ONE: .octa 0x00000000000000000000000000000001
+
+.section .rodata.cst16.ONEf, "aM", @progbits, 16
+.align 16
+ONEf: .octa 0x01000000000000000000000000000000
+
+# order of these constants should not change.
+# more specifically, ALL_F should follow SHIFT_MASK, and zero should follow ALL_F
+.section .rodata, "a", @progbits
+.align 16
+SHIFT_MASK: .octa 0x0f0e0d0c0b0a09080706050403020100
+ALL_F: .octa 0xffffffffffffffffffffffffffffffff
+ .octa 0x00000000000000000000000000000000
+
+.text
+
+
+#define AadHash 16*0
+#define AadLen 16*1
+#define InLen (16*1)+8
+#define PBlockEncKey 16*2
+#define OrigIV 16*3
+#define CurCount 16*4
+#define PBlockLen 16*5
+
+HashKey = 16*6 # store HashKey <<1 mod poly here
+HashKey_2 = 16*7 # store HashKey^2 <<1 mod poly here
+HashKey_3 = 16*8 # store HashKey^3 <<1 mod poly here
+HashKey_4 = 16*9 # store HashKey^4 <<1 mod poly here
+HashKey_5 = 16*10 # store HashKey^5 <<1 mod poly here
+HashKey_6 = 16*11 # store HashKey^6 <<1 mod poly here
+HashKey_7 = 16*12 # store HashKey^7 <<1 mod poly here
+HashKey_8 = 16*13 # store HashKey^8 <<1 mod poly here
+HashKey_k = 16*14 # store XOR of HashKey <<1 mod poly here (for Karatsuba purposes)
+HashKey_2_k = 16*15 # store XOR of HashKey^2 <<1 mod poly here (for Karatsuba purposes)
+HashKey_3_k = 16*16 # store XOR of HashKey^3 <<1 mod poly here (for Karatsuba purposes)
+HashKey_4_k = 16*17 # store XOR of HashKey^4 <<1 mod poly here (for Karatsuba purposes)
+HashKey_5_k = 16*18 # store XOR of HashKey^5 <<1 mod poly here (for Karatsuba purposes)
+HashKey_6_k = 16*19 # store XOR of HashKey^6 <<1 mod poly here (for Karatsuba purposes)
+HashKey_7_k = 16*20 # store XOR of HashKey^7 <<1 mod poly here (for Karatsuba purposes)
+HashKey_8_k = 16*21 # store XOR of HashKey^8 <<1 mod poly here (for Karatsuba purposes)
+
+#define arg1 %rdi
+#define arg2 %rsi
+#define arg3 %rdx
+#define arg4 %rcx
+#define arg5 %r8
+#define arg6 %r9
+#define keysize 2*15*16(arg1)
+
+i = 0
+j = 0
+
+out_order = 0
+in_order = 1
+DEC = 0
+ENC = 1
+
+.macro define_reg r n
+reg_\r = %xmm\n
+.endm
+
+.macro setreg
+.altmacro
+define_reg i %i
+define_reg j %j
+.noaltmacro
+.endm
+
+TMP1 = 16*0 # Temporary storage for AAD
+TMP2 = 16*1 # Temporary storage for AES State 2 (State 1 is stored in an XMM register)
+TMP3 = 16*2 # Temporary storage for AES State 3
+TMP4 = 16*3 # Temporary storage for AES State 4
+TMP5 = 16*4 # Temporary storage for AES State 5
+TMP6 = 16*5 # Temporary storage for AES State 6
+TMP7 = 16*6 # Temporary storage for AES State 7
+TMP8 = 16*7 # Temporary storage for AES State 8
+
+VARIABLE_OFFSET = 16*8
+
+################################
+# Utility Macros
+################################
+
+.macro FUNC_SAVE
+ push %r12
+ push %r13
+ push %r15
+
+ push %rbp
+ mov %rsp, %rbp
+
+ sub $VARIABLE_OFFSET, %rsp
+ and $~63, %rsp # align rsp to 64 bytes
+.endm
+
+.macro FUNC_RESTORE
+ mov %rbp, %rsp
+ pop %rbp
+
+ pop %r15
+ pop %r13
+ pop %r12
+.endm
+
+# Encryption of a single block
+.macro ENCRYPT_SINGLE_BLOCK REP XMM0
+ vpxor (arg1), \XMM0, \XMM0
+ i = 1
+ setreg
+.rep \REP
+ vaesenc 16*i(arg1), \XMM0, \XMM0
+ i = (i+1)
+ setreg
+.endr
+ vaesenclast 16*i(arg1), \XMM0, \XMM0
+.endm
+
+# combined for GCM encrypt and decrypt functions
+# clobbering all xmm registers
+# clobbering r10, r11, r12, r13, r15, rax
+.macro GCM_ENC_DEC INITIAL_BLOCKS GHASH_8_ENCRYPT_8_PARALLEL GHASH_LAST_8 GHASH_MUL ENC_DEC REP
+ vmovdqu AadHash(arg2), %xmm8
+ vmovdqu HashKey(arg2), %xmm13 # xmm13 = HashKey
+ add arg5, InLen(arg2)
+
+ # initialize the data pointer offset as zero
+ xor %r11d, %r11d
+
+ PARTIAL_BLOCK \GHASH_MUL, arg3, arg4, arg5, %r11, %xmm8, \ENC_DEC
+ sub %r11, arg5
+
+ mov arg5, %r13 # save the number of bytes of plaintext/ciphertext
+ and $-16, %r13 # r13 = r13 - (r13 mod 16)
+
+ mov %r13, %r12
+ shr $4, %r12
+ and $7, %r12
+ jz .L_initial_num_blocks_is_0\@
+
+ cmp $7, %r12
+ je .L_initial_num_blocks_is_7\@
+ cmp $6, %r12
+ je .L_initial_num_blocks_is_6\@
+ cmp $5, %r12
+ je .L_initial_num_blocks_is_5\@
+ cmp $4, %r12
+ je .L_initial_num_blocks_is_4\@
+ cmp $3, %r12
+ je .L_initial_num_blocks_is_3\@
+ cmp $2, %r12
+ je .L_initial_num_blocks_is_2\@
+
+ jmp .L_initial_num_blocks_is_1\@
+
+.L_initial_num_blocks_is_7\@:
+ \INITIAL_BLOCKS \REP, 7, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+ sub $16*7, %r13
+ jmp .L_initial_blocks_encrypted\@
+
+.L_initial_num_blocks_is_6\@:
+ \INITIAL_BLOCKS \REP, 6, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+ sub $16*6, %r13
+ jmp .L_initial_blocks_encrypted\@
+
+.L_initial_num_blocks_is_5\@:
+ \INITIAL_BLOCKS \REP, 5, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+ sub $16*5, %r13
+ jmp .L_initial_blocks_encrypted\@
+
+.L_initial_num_blocks_is_4\@:
+ \INITIAL_BLOCKS \REP, 4, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+ sub $16*4, %r13
+ jmp .L_initial_blocks_encrypted\@
+
+.L_initial_num_blocks_is_3\@:
+ \INITIAL_BLOCKS \REP, 3, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+ sub $16*3, %r13
+ jmp .L_initial_blocks_encrypted\@
+
+.L_initial_num_blocks_is_2\@:
+ \INITIAL_BLOCKS \REP, 2, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+ sub $16*2, %r13
+ jmp .L_initial_blocks_encrypted\@
+
+.L_initial_num_blocks_is_1\@:
+ \INITIAL_BLOCKS \REP, 1, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+ sub $16*1, %r13
+ jmp .L_initial_blocks_encrypted\@
+
+.L_initial_num_blocks_is_0\@:
+ \INITIAL_BLOCKS \REP, 0, %xmm12, %xmm13, %xmm14, %xmm15, %xmm11, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm10, %xmm0, \ENC_DEC
+
+
+.L_initial_blocks_encrypted\@:
+ test %r13, %r13
+ je .L_zero_cipher_left\@
+
+ sub $128, %r13
+ je .L_eight_cipher_left\@
+
+
+
+
+ vmovd %xmm9, %r15d
+ and $255, %r15d
+ vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+
+
+.L_encrypt_by_8_new\@:
+ cmp $(255-8), %r15d
+ jg .L_encrypt_by_8\@
+
+
+
+ add $8, %r15b
+ \GHASH_8_ENCRYPT_8_PARALLEL \REP, %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm15, out_order, \ENC_DEC
+ add $128, %r11
+ sub $128, %r13
+ jne .L_encrypt_by_8_new\@
+
+ vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+ jmp .L_eight_cipher_left\@
+
+.L_encrypt_by_8\@:
+ vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+ add $8, %r15b
+ \GHASH_8_ENCRYPT_8_PARALLEL \REP, %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm9, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8, %xmm15, in_order, \ENC_DEC
+ vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+ add $128, %r11
+ sub $128, %r13
+ jne .L_encrypt_by_8_new\@
+
+ vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+
+
+
+
+.L_eight_cipher_left\@:
+ \GHASH_LAST_8 %xmm0, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7, %xmm8
+
+
+.L_zero_cipher_left\@:
+ vmovdqu %xmm14, AadHash(arg2)
+ vmovdqu %xmm9, CurCount(arg2)
+
+ # check for 0 length
+ mov arg5, %r13
+ and $15, %r13 # r13 = (arg5 mod 16)
+
+ je .L_multiple_of_16_bytes\@
+
+ # handle the last <16 Byte block separately
+
+ mov %r13, PBlockLen(arg2)
+
+ vpaddd ONE(%rip), %xmm9, %xmm9 # INCR CNT to get Yn
+ vmovdqu %xmm9, CurCount(arg2)
+ vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+
+ ENCRYPT_SINGLE_BLOCK \REP, %xmm9 # E(K, Yn)
+ vmovdqu %xmm9, PBlockEncKey(arg2)
+
+ cmp $16, arg5
+ jge .L_large_enough_update\@
+
+ lea (arg4,%r11,1), %r10
+ mov %r13, %r12
+
+ READ_PARTIAL_BLOCK %r10 %r12 %xmm1
+
+ lea SHIFT_MASK+16(%rip), %r12
+ sub %r13, %r12 # adjust the shuffle mask pointer to be
+ # able to shift 16-r13 bytes (r13 is the
+ # number of bytes in plaintext mod 16)
+
+ jmp .L_final_ghash_mul\@
+
+.L_large_enough_update\@:
+ sub $16, %r11
+ add %r13, %r11
+
+ # receive the last <16 Byte block
+ vmovdqu (arg4, %r11, 1), %xmm1
+
+ sub %r13, %r11
+ add $16, %r11
+
+ lea SHIFT_MASK+16(%rip), %r12
+ # adjust the shuffle mask pointer to be able to shift 16-r13 bytes
+ # (r13 is the number of bytes in plaintext mod 16)
+ sub %r13, %r12
+ # get the appropriate shuffle mask
+ vmovdqu (%r12), %xmm2
+ # shift right 16-r13 bytes
+ vpshufb %xmm2, %xmm1, %xmm1
+
+.L_final_ghash_mul\@:
+ .if \ENC_DEC == DEC
+ vmovdqa %xmm1, %xmm2
+ vpxor %xmm1, %xmm9, %xmm9 # Plaintext XOR E(K, Yn)
+ vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1 # get the appropriate mask to
+ # mask out top 16-r13 bytes of xmm9
+ vpand %xmm1, %xmm9, %xmm9 # mask out top 16-r13 bytes of xmm9
+ vpand %xmm1, %xmm2, %xmm2
+ vpshufb SHUF_MASK(%rip), %xmm2, %xmm2
+ vpxor %xmm2, %xmm14, %xmm14
+
+ vmovdqu %xmm14, AadHash(arg2)
+ .else
+ vpxor %xmm1, %xmm9, %xmm9 # Plaintext XOR E(K, Yn)
+ vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1 # get the appropriate mask to
+ # mask out top 16-r13 bytes of xmm9
+ vpand %xmm1, %xmm9, %xmm9 # mask out top 16-r13 bytes of xmm9
+ vpshufb SHUF_MASK(%rip), %xmm9, %xmm9
+ vpxor %xmm9, %xmm14, %xmm14
+
+ vmovdqu %xmm14, AadHash(arg2)
+ vpshufb SHUF_MASK(%rip), %xmm9, %xmm9 # shuffle xmm9 back to output as ciphertext
+ .endif
+
+
+ #############################
+ # output r13 Bytes
+ vmovq %xmm9, %rax
+ cmp $8, %r13
+ jle .L_less_than_8_bytes_left\@
+
+ mov %rax, (arg3 , %r11)
+ add $8, %r11
+ vpsrldq $8, %xmm9, %xmm9
+ vmovq %xmm9, %rax
+ sub $8, %r13
+
+.L_less_than_8_bytes_left\@:
+ movb %al, (arg3 , %r11)
+ add $1, %r11
+ shr $8, %rax
+ sub $1, %r13
+ jne .L_less_than_8_bytes_left\@
+ #############################
+
+.L_multiple_of_16_bytes\@:
+.endm
+
+
+# GCM_COMPLETE Finishes update of tag of last partial block
+# Output: Authorization Tag (AUTH_TAG)
+# Clobbers rax, r10-r12, and xmm0, xmm1, xmm5-xmm15
+.macro GCM_COMPLETE GHASH_MUL REP AUTH_TAG AUTH_TAG_LEN
+ vmovdqu AadHash(arg2), %xmm14
+ vmovdqu HashKey(arg2), %xmm13
+
+ mov PBlockLen(arg2), %r12
+ test %r12, %r12
+ je .L_partial_done\@
+
+ #GHASH computation for the last <16 Byte block
+ \GHASH_MUL %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6
+
+.L_partial_done\@:
+ mov AadLen(arg2), %r12 # r12 = aadLen (number of bytes)
+ shl $3, %r12 # convert into number of bits
+ vmovd %r12d, %xmm15 # len(A) in xmm15
+
+ mov InLen(arg2), %r12
+ shl $3, %r12 # len(C) in bits (*128)
+ vmovq %r12, %xmm1
+ vpslldq $8, %xmm15, %xmm15 # xmm15 = len(A)|| 0x0000000000000000
+ vpxor %xmm1, %xmm15, %xmm15 # xmm15 = len(A)||len(C)
+
+ vpxor %xmm15, %xmm14, %xmm14
+ \GHASH_MUL %xmm14, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6 # final GHASH computation
+ vpshufb SHUF_MASK(%rip), %xmm14, %xmm14 # perform a 16Byte swap
+
+ vmovdqu OrigIV(arg2), %xmm9
+
+ ENCRYPT_SINGLE_BLOCK \REP, %xmm9 # E(K, Y0)
+
+ vpxor %xmm14, %xmm9, %xmm9
+
+
+
+.L_return_T\@:
+ mov \AUTH_TAG, %r10 # r10 = authTag
+ mov \AUTH_TAG_LEN, %r11 # r11 = auth_tag_len
+
+ cmp $16, %r11
+ je .L_T_16\@
+
+ cmp $8, %r11
+ jl .L_T_4\@
+
+.L_T_8\@:
+ vmovq %xmm9, %rax
+ mov %rax, (%r10)
+ add $8, %r10
+ sub $8, %r11
+ vpsrldq $8, %xmm9, %xmm9
+ test %r11, %r11
+ je .L_return_T_done\@
+.L_T_4\@:
+ vmovd %xmm9, %eax
+ mov %eax, (%r10)
+ add $4, %r10
+ sub $4, %r11
+ vpsrldq $4, %xmm9, %xmm9
+ test %r11, %r11
+ je .L_return_T_done\@
+.L_T_123\@:
+ vmovd %xmm9, %eax
+ cmp $2, %r11
+ jl .L_T_1\@
+ mov %ax, (%r10)
+ cmp $2, %r11
+ je .L_return_T_done\@
+ add $2, %r10
+ sar $16, %eax
+.L_T_1\@:
+ mov %al, (%r10)
+ jmp .L_return_T_done\@
+
+.L_T_16\@:
+ vmovdqu %xmm9, (%r10)
+
+.L_return_T_done\@:
+.endm
+
+.macro CALC_AAD_HASH GHASH_MUL AAD AADLEN T1 T2 T3 T4 T5 T6 T7 T8
+
+ mov \AAD, %r10 # r10 = AAD
+ mov \AADLEN, %r12 # r12 = aadLen
+
+
+ mov %r12, %r11
+
+ vpxor \T8, \T8, \T8
+ vpxor \T7, \T7, \T7
+ cmp $16, %r11
+ jl .L_get_AAD_rest8\@
+.L_get_AAD_blocks\@:
+ vmovdqu (%r10), \T7
+ vpshufb SHUF_MASK(%rip), \T7, \T7
+ vpxor \T7, \T8, \T8
+ \GHASH_MUL \T8, \T2, \T1, \T3, \T4, \T5, \T6
+ add $16, %r10
+ sub $16, %r12
+ sub $16, %r11
+ cmp $16, %r11
+ jge .L_get_AAD_blocks\@
+ vmovdqu \T8, \T7
+ test %r11, %r11
+ je .L_get_AAD_done\@
+
+ vpxor \T7, \T7, \T7
+
+ /* read the last <16B of AAD. since we have at least 4B of
+ data right after the AAD (the ICV, and maybe some CT), we can
+ read 4B/8B blocks safely, and then get rid of the extra stuff */
+.L_get_AAD_rest8\@:
+ cmp $4, %r11
+ jle .L_get_AAD_rest4\@
+ movq (%r10), \T1
+ add $8, %r10
+ sub $8, %r11
+ vpslldq $8, \T1, \T1
+ vpsrldq $8, \T7, \T7
+ vpxor \T1, \T7, \T7
+ jmp .L_get_AAD_rest8\@
+.L_get_AAD_rest4\@:
+ test %r11, %r11
+ jle .L_get_AAD_rest0\@
+ mov (%r10), %eax
+ movq %rax, \T1
+ add $4, %r10
+ sub $4, %r11
+ vpslldq $12, \T1, \T1
+ vpsrldq $4, \T7, \T7
+ vpxor \T1, \T7, \T7
+.L_get_AAD_rest0\@:
+ /* finalize: shift out the extra bytes we read, and align
+ left. since pslldq can only shift by an immediate, we use
+ vpshufb and a pair of shuffle masks */
+ leaq ALL_F(%rip), %r11
+ subq %r12, %r11
+ vmovdqu 16(%r11), \T1
+ andq $~3, %r11
+ vpshufb (%r11), \T7, \T7
+ vpand \T1, \T7, \T7
+.L_get_AAD_rest_final\@:
+ vpshufb SHUF_MASK(%rip), \T7, \T7
+ vpxor \T8, \T7, \T7
+ \GHASH_MUL \T7, \T2, \T1, \T3, \T4, \T5, \T6
+
+.L_get_AAD_done\@:
+ vmovdqu \T7, AadHash(arg2)
+.endm
+
+.macro INIT GHASH_MUL PRECOMPUTE
+ mov arg6, %r11
+ mov %r11, AadLen(arg2) # ctx_data.aad_length = aad_length
+ xor %r11d, %r11d
+ mov %r11, InLen(arg2) # ctx_data.in_length = 0
+
+ mov %r11, PBlockLen(arg2) # ctx_data.partial_block_length = 0
+ mov %r11, PBlockEncKey(arg2) # ctx_data.partial_block_enc_key = 0
+ mov arg3, %rax
+ movdqu (%rax), %xmm0
+ movdqu %xmm0, OrigIV(arg2) # ctx_data.orig_IV = iv
+
+ vpshufb SHUF_MASK(%rip), %xmm0, %xmm0
+ movdqu %xmm0, CurCount(arg2) # ctx_data.current_counter = iv
+
+ vmovdqu (arg4), %xmm6 # xmm6 = HashKey
+
+ vpshufb SHUF_MASK(%rip), %xmm6, %xmm6
+ ############### PRECOMPUTATION of HashKey<<1 mod poly from the HashKey
+ vmovdqa %xmm6, %xmm2
+ vpsllq $1, %xmm6, %xmm6
+ vpsrlq $63, %xmm2, %xmm2
+ vmovdqa %xmm2, %xmm1
+ vpslldq $8, %xmm2, %xmm2
+ vpsrldq $8, %xmm1, %xmm1
+ vpor %xmm2, %xmm6, %xmm6
+ #reduction
+ vpshufd $0b00100100, %xmm1, %xmm2
+ vpcmpeqd TWOONE(%rip), %xmm2, %xmm2
+ vpand POLY(%rip), %xmm2, %xmm2
+ vpxor %xmm2, %xmm6, %xmm6 # xmm6 holds the HashKey<<1 mod poly
+ #######################################################################
+ vmovdqu %xmm6, HashKey(arg2) # store HashKey<<1 mod poly
+
+ CALC_AAD_HASH \GHASH_MUL, arg5, arg6, %xmm2, %xmm6, %xmm3, %xmm4, %xmm5, %xmm7, %xmm1, %xmm0
+
+ \PRECOMPUTE %xmm6, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5
+.endm
+
+
+# Reads DLEN bytes starting at DPTR and stores in XMMDst
+# where 0 < DLEN < 16
+# Clobbers %rax, DLEN
+.macro READ_PARTIAL_BLOCK DPTR DLEN XMMDst
+ vpxor \XMMDst, \XMMDst, \XMMDst
+
+ cmp $8, \DLEN
+ jl .L_read_lt8_\@
+ mov (\DPTR), %rax
+ vpinsrq $0, %rax, \XMMDst, \XMMDst
+ sub $8, \DLEN
+ jz .L_done_read_partial_block_\@
+ xor %eax, %eax
+.L_read_next_byte_\@:
+ shl $8, %rax
+ mov 7(\DPTR, \DLEN, 1), %al
+ dec \DLEN
+ jnz .L_read_next_byte_\@
+ vpinsrq $1, %rax, \XMMDst, \XMMDst
+ jmp .L_done_read_partial_block_\@
+.L_read_lt8_\@:
+ xor %eax, %eax
+.L_read_next_byte_lt8_\@:
+ shl $8, %rax
+ mov -1(\DPTR, \DLEN, 1), %al
+ dec \DLEN
+ jnz .L_read_next_byte_lt8_\@
+ vpinsrq $0, %rax, \XMMDst, \XMMDst
+.L_done_read_partial_block_\@:
+.endm
+
+# PARTIAL_BLOCK: Handles encryption/decryption and the tag partial blocks
+# between update calls.
+# Requires the input data be at least 1 byte long due to READ_PARTIAL_BLOCK
+# Outputs encrypted bytes, and updates hash and partial info in gcm_data_context
+# Clobbers rax, r10, r12, r13, xmm0-6, xmm9-13
+.macro PARTIAL_BLOCK GHASH_MUL CYPH_PLAIN_OUT PLAIN_CYPH_IN PLAIN_CYPH_LEN DATA_OFFSET \
+ AAD_HASH ENC_DEC
+ mov PBlockLen(arg2), %r13
+ test %r13, %r13
+ je .L_partial_block_done_\@ # Leave Macro if no partial blocks
+ # Read in input data without over reading
+ cmp $16, \PLAIN_CYPH_LEN
+ jl .L_fewer_than_16_bytes_\@
+ vmovdqu (\PLAIN_CYPH_IN), %xmm1 # If more than 16 bytes, just fill xmm
+ jmp .L_data_read_\@
+
+.L_fewer_than_16_bytes_\@:
+ lea (\PLAIN_CYPH_IN, \DATA_OFFSET, 1), %r10
+ mov \PLAIN_CYPH_LEN, %r12
+ READ_PARTIAL_BLOCK %r10 %r12 %xmm1
+
+ mov PBlockLen(arg2), %r13
+
+.L_data_read_\@: # Finished reading in data
+
+ vmovdqu PBlockEncKey(arg2), %xmm9
+ vmovdqu HashKey(arg2), %xmm13
+
+ lea SHIFT_MASK(%rip), %r12
+
+ # adjust the shuffle mask pointer to be able to shift r13 bytes
+ # r16-r13 is the number of bytes in plaintext mod 16)
+ add %r13, %r12
+ vmovdqu (%r12), %xmm2 # get the appropriate shuffle mask
+ vpshufb %xmm2, %xmm9, %xmm9 # shift right r13 bytes
+
+.if \ENC_DEC == DEC
+ vmovdqa %xmm1, %xmm3
+ pxor %xmm1, %xmm9 # Cyphertext XOR E(K, Yn)
+
+ mov \PLAIN_CYPH_LEN, %r10
+ add %r13, %r10
+ # Set r10 to be the amount of data left in CYPH_PLAIN_IN after filling
+ sub $16, %r10
+ # Determine if if partial block is not being filled and
+ # shift mask accordingly
+ jge .L_no_extra_mask_1_\@
+ sub %r10, %r12
+.L_no_extra_mask_1_\@:
+
+ vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1
+ # get the appropriate mask to mask out bottom r13 bytes of xmm9
+ vpand %xmm1, %xmm9, %xmm9 # mask out bottom r13 bytes of xmm9
+
+ vpand %xmm1, %xmm3, %xmm3
+ vmovdqa SHUF_MASK(%rip), %xmm10
+ vpshufb %xmm10, %xmm3, %xmm3
+ vpshufb %xmm2, %xmm3, %xmm3
+ vpxor %xmm3, \AAD_HASH, \AAD_HASH
+
+ test %r10, %r10
+ jl .L_partial_incomplete_1_\@
+
+ # GHASH computation for the last <16 Byte block
+ \GHASH_MUL \AAD_HASH, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6
+ xor %eax,%eax
+
+ mov %rax, PBlockLen(arg2)
+ jmp .L_dec_done_\@
+.L_partial_incomplete_1_\@:
+ add \PLAIN_CYPH_LEN, PBlockLen(arg2)
+.L_dec_done_\@:
+ vmovdqu \AAD_HASH, AadHash(arg2)
+.else
+ vpxor %xmm1, %xmm9, %xmm9 # Plaintext XOR E(K, Yn)
+
+ mov \PLAIN_CYPH_LEN, %r10
+ add %r13, %r10
+ # Set r10 to be the amount of data left in CYPH_PLAIN_IN after filling
+ sub $16, %r10
+ # Determine if if partial block is not being filled and
+ # shift mask accordingly
+ jge .L_no_extra_mask_2_\@
+ sub %r10, %r12
+.L_no_extra_mask_2_\@:
+
+ vmovdqu ALL_F-SHIFT_MASK(%r12), %xmm1
+ # get the appropriate mask to mask out bottom r13 bytes of xmm9
+ vpand %xmm1, %xmm9, %xmm9
+
+ vmovdqa SHUF_MASK(%rip), %xmm1
+ vpshufb %xmm1, %xmm9, %xmm9
+ vpshufb %xmm2, %xmm9, %xmm9
+ vpxor %xmm9, \AAD_HASH, \AAD_HASH
+
+ test %r10, %r10
+ jl .L_partial_incomplete_2_\@
+
+ # GHASH computation for the last <16 Byte block
+ \GHASH_MUL \AAD_HASH, %xmm13, %xmm0, %xmm10, %xmm11, %xmm5, %xmm6
+ xor %eax,%eax
+
+ mov %rax, PBlockLen(arg2)
+ jmp .L_encode_done_\@
+.L_partial_incomplete_2_\@:
+ add \PLAIN_CYPH_LEN, PBlockLen(arg2)
+.L_encode_done_\@:
+ vmovdqu \AAD_HASH, AadHash(arg2)
+
+ vmovdqa SHUF_MASK(%rip), %xmm10
+ # shuffle xmm9 back to output as ciphertext
+ vpshufb %xmm10, %xmm9, %xmm9
+ vpshufb %xmm2, %xmm9, %xmm9
+.endif
+ # output encrypted Bytes
+ test %r10, %r10
+ jl .L_partial_fill_\@
+ mov %r13, %r12
+ mov $16, %r13
+ # Set r13 to be the number of bytes to write out
+ sub %r12, %r13
+ jmp .L_count_set_\@
+.L_partial_fill_\@:
+ mov \PLAIN_CYPH_LEN, %r13
+.L_count_set_\@:
+ vmovdqa %xmm9, %xmm0
+ vmovq %xmm0, %rax
+ cmp $8, %r13
+ jle .L_less_than_8_bytes_left_\@
+
+ mov %rax, (\CYPH_PLAIN_OUT, \DATA_OFFSET, 1)
+ add $8, \DATA_OFFSET
+ psrldq $8, %xmm0
+ vmovq %xmm0, %rax
+ sub $8, %r13
+.L_less_than_8_bytes_left_\@:
+ movb %al, (\CYPH_PLAIN_OUT, \DATA_OFFSET, 1)
+ add $1, \DATA_OFFSET
+ shr $8, %rax
+ sub $1, %r13
+ jne .L_less_than_8_bytes_left_\@
+.L_partial_block_done_\@:
+.endm # PARTIAL_BLOCK
+
+###############################################################################
+# GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0)
+# Input: A and B (128-bits each, bit-reflected)
+# Output: C = A*B*x mod poly, (i.e. >>1 )
+# To compute GH = GH*HashKey mod poly, give HK = HashKey<<1 mod poly as input
+# GH = GH * HK * x mod poly which is equivalent to GH*HashKey mod poly.
+###############################################################################
+.macro GHASH_MUL_AVX GH HK T1 T2 T3 T4 T5
+
+ vpshufd $0b01001110, \GH, \T2
+ vpshufd $0b01001110, \HK, \T3
+ vpxor \GH , \T2, \T2 # T2 = (a1+a0)
+ vpxor \HK , \T3, \T3 # T3 = (b1+b0)
+
+ vpclmulqdq $0x11, \HK, \GH, \T1 # T1 = a1*b1
+ vpclmulqdq $0x00, \HK, \GH, \GH # GH = a0*b0
+ vpclmulqdq $0x00, \T3, \T2, \T2 # T2 = (a1+a0)*(b1+b0)
+ vpxor \GH, \T2,\T2
+ vpxor \T1, \T2,\T2 # T2 = a0*b1+a1*b0
+
+ vpslldq $8, \T2,\T3 # shift-L T3 2 DWs
+ vpsrldq $8, \T2,\T2 # shift-R T2 2 DWs
+ vpxor \T3, \GH, \GH
+ vpxor \T2, \T1, \T1 # <T1:GH> = GH x HK
+
+ #first phase of the reduction
+ vpslld $31, \GH, \T2 # packed right shifting << 31
+ vpslld $30, \GH, \T3 # packed right shifting shift << 30
+ vpslld $25, \GH, \T4 # packed right shifting shift << 25
+
+ vpxor \T3, \T2, \T2 # xor the shifted versions
+ vpxor \T4, \T2, \T2
+
+ vpsrldq $4, \T2, \T5 # shift-R T5 1 DW
+
+ vpslldq $12, \T2, \T2 # shift-L T2 3 DWs
+ vpxor \T2, \GH, \GH # first phase of the reduction complete
+
+ #second phase of the reduction
+
+ vpsrld $1,\GH, \T2 # packed left shifting >> 1
+ vpsrld $2,\GH, \T3 # packed left shifting >> 2
+ vpsrld $7,\GH, \T4 # packed left shifting >> 7
+ vpxor \T3, \T2, \T2 # xor the shifted versions
+ vpxor \T4, \T2, \T2
+
+ vpxor \T5, \T2, \T2
+ vpxor \T2, \GH, \GH
+ vpxor \T1, \GH, \GH # the result is in GH
+
+
+.endm
+
+.macro PRECOMPUTE_AVX HK T1 T2 T3 T4 T5 T6
+
+ # Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
+ vmovdqa \HK, \T5
+
+ vpshufd $0b01001110, \T5, \T1
+ vpxor \T5, \T1, \T1
+ vmovdqu \T1, HashKey_k(arg2)
+
+ GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^2<<1 mod poly
+ vmovdqu \T5, HashKey_2(arg2) # [HashKey_2] = HashKey^2<<1 mod poly
+ vpshufd $0b01001110, \T5, \T1
+ vpxor \T5, \T1, \T1
+ vmovdqu \T1, HashKey_2_k(arg2)
+
+ GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^3<<1 mod poly
+ vmovdqu \T5, HashKey_3(arg2)
+ vpshufd $0b01001110, \T5, \T1
+ vpxor \T5, \T1, \T1
+ vmovdqu \T1, HashKey_3_k(arg2)
+
+ GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^4<<1 mod poly
+ vmovdqu \T5, HashKey_4(arg2)
+ vpshufd $0b01001110, \T5, \T1
+ vpxor \T5, \T1, \T1
+ vmovdqu \T1, HashKey_4_k(arg2)
+
+ GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^5<<1 mod poly
+ vmovdqu \T5, HashKey_5(arg2)
+ vpshufd $0b01001110, \T5, \T1
+ vpxor \T5, \T1, \T1
+ vmovdqu \T1, HashKey_5_k(arg2)
+
+ GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^6<<1 mod poly
+ vmovdqu \T5, HashKey_6(arg2)
+ vpshufd $0b01001110, \T5, \T1
+ vpxor \T5, \T1, \T1
+ vmovdqu \T1, HashKey_6_k(arg2)
+
+ GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^7<<1 mod poly
+ vmovdqu \T5, HashKey_7(arg2)
+ vpshufd $0b01001110, \T5, \T1
+ vpxor \T5, \T1, \T1
+ vmovdqu \T1, HashKey_7_k(arg2)
+
+ GHASH_MUL_AVX \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^8<<1 mod poly
+ vmovdqu \T5, HashKey_8(arg2)
+ vpshufd $0b01001110, \T5, \T1
+ vpxor \T5, \T1, \T1
+ vmovdqu \T1, HashKey_8_k(arg2)
+
+.endm
+
+## if a = number of total plaintext bytes
+## b = floor(a/16)
+## num_initial_blocks = b mod 4#
+## encrypt the initial num_initial_blocks blocks and apply ghash on the ciphertext
+## r10, r11, r12, rax are clobbered
+## arg1, arg2, arg3, arg4 are used as pointers only, not modified
+
+.macro INITIAL_BLOCKS_AVX REP num_initial_blocks T1 T2 T3 T4 T5 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T6 T_key ENC_DEC
+ i = (8-\num_initial_blocks)
+ setreg
+ vmovdqu AadHash(arg2), reg_i
+
+ # start AES for num_initial_blocks blocks
+ vmovdqu CurCount(arg2), \CTR
+
+ i = (9-\num_initial_blocks)
+ setreg
+.rep \num_initial_blocks
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, reg_i
+ vpshufb SHUF_MASK(%rip), reg_i, reg_i # perform a 16Byte swap
+ i = (i+1)
+ setreg
+.endr
+
+ vmovdqa (arg1), \T_key
+ i = (9-\num_initial_blocks)
+ setreg
+.rep \num_initial_blocks
+ vpxor \T_key, reg_i, reg_i
+ i = (i+1)
+ setreg
+.endr
+
+ j = 1
+ setreg
+.rep \REP
+ vmovdqa 16*j(arg1), \T_key
+ i = (9-\num_initial_blocks)
+ setreg
+.rep \num_initial_blocks
+ vaesenc \T_key, reg_i, reg_i
+ i = (i+1)
+ setreg
+.endr
+
+ j = (j+1)
+ setreg
+.endr
+
+ vmovdqa 16*j(arg1), \T_key
+ i = (9-\num_initial_blocks)
+ setreg
+.rep \num_initial_blocks
+ vaesenclast \T_key, reg_i, reg_i
+ i = (i+1)
+ setreg
+.endr
+
+ i = (9-\num_initial_blocks)
+ setreg
+.rep \num_initial_blocks
+ vmovdqu (arg4, %r11), \T1
+ vpxor \T1, reg_i, reg_i
+ vmovdqu reg_i, (arg3 , %r11) # write back ciphertext for num_initial_blocks blocks
+ add $16, %r11
+.if \ENC_DEC == DEC
+ vmovdqa \T1, reg_i
+.endif
+ vpshufb SHUF_MASK(%rip), reg_i, reg_i # prepare ciphertext for GHASH computations
+ i = (i+1)
+ setreg
+.endr
+
+
+ i = (8-\num_initial_blocks)
+ j = (9-\num_initial_blocks)
+ setreg
+
+.rep \num_initial_blocks
+ vpxor reg_i, reg_j, reg_j
+ GHASH_MUL_AVX reg_j, \T2, \T1, \T3, \T4, \T5, \T6 # apply GHASH on num_initial_blocks blocks
+ i = (i+1)
+ j = (j+1)
+ setreg
+.endr
+ # XMM8 has the combined result here
+
+ vmovdqa \XMM8, TMP1(%rsp)
+ vmovdqa \XMM8, \T3
+
+ cmp $128, %r13
+ jl .L_initial_blocks_done\@ # no need for precomputed constants
+
+###############################################################################
+# Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM1
+ vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM2
+ vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM3
+ vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM4
+ vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM5
+ vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM6
+ vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM7
+ vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM8
+ vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap
+
+ vmovdqa (arg1), \T_key
+ vpxor \T_key, \XMM1, \XMM1
+ vpxor \T_key, \XMM2, \XMM2
+ vpxor \T_key, \XMM3, \XMM3
+ vpxor \T_key, \XMM4, \XMM4
+ vpxor \T_key, \XMM5, \XMM5
+ vpxor \T_key, \XMM6, \XMM6
+ vpxor \T_key, \XMM7, \XMM7
+ vpxor \T_key, \XMM8, \XMM8
+
+ i = 1
+ setreg
+.rep \REP # do REP rounds
+ vmovdqa 16*i(arg1), \T_key
+ vaesenc \T_key, \XMM1, \XMM1
+ vaesenc \T_key, \XMM2, \XMM2
+ vaesenc \T_key, \XMM3, \XMM3
+ vaesenc \T_key, \XMM4, \XMM4
+ vaesenc \T_key, \XMM5, \XMM5
+ vaesenc \T_key, \XMM6, \XMM6
+ vaesenc \T_key, \XMM7, \XMM7
+ vaesenc \T_key, \XMM8, \XMM8
+ i = (i+1)
+ setreg
+.endr
+
+ vmovdqa 16*i(arg1), \T_key
+ vaesenclast \T_key, \XMM1, \XMM1
+ vaesenclast \T_key, \XMM2, \XMM2
+ vaesenclast \T_key, \XMM3, \XMM3
+ vaesenclast \T_key, \XMM4, \XMM4
+ vaesenclast \T_key, \XMM5, \XMM5
+ vaesenclast \T_key, \XMM6, \XMM6
+ vaesenclast \T_key, \XMM7, \XMM7
+ vaesenclast \T_key, \XMM8, \XMM8
+
+ vmovdqu (arg4, %r11), \T1
+ vpxor \T1, \XMM1, \XMM1
+ vmovdqu \XMM1, (arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM1
+ .endif
+
+ vmovdqu 16*1(arg4, %r11), \T1
+ vpxor \T1, \XMM2, \XMM2
+ vmovdqu \XMM2, 16*1(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM2
+ .endif
+
+ vmovdqu 16*2(arg4, %r11), \T1
+ vpxor \T1, \XMM3, \XMM3
+ vmovdqu \XMM3, 16*2(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM3
+ .endif
+
+ vmovdqu 16*3(arg4, %r11), \T1
+ vpxor \T1, \XMM4, \XMM4
+ vmovdqu \XMM4, 16*3(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM4
+ .endif
+
+ vmovdqu 16*4(arg4, %r11), \T1
+ vpxor \T1, \XMM5, \XMM5
+ vmovdqu \XMM5, 16*4(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM5
+ .endif
+
+ vmovdqu 16*5(arg4, %r11), \T1
+ vpxor \T1, \XMM6, \XMM6
+ vmovdqu \XMM6, 16*5(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM6
+ .endif
+
+ vmovdqu 16*6(arg4, %r11), \T1
+ vpxor \T1, \XMM7, \XMM7
+ vmovdqu \XMM7, 16*6(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM7
+ .endif
+
+ vmovdqu 16*7(arg4, %r11), \T1
+ vpxor \T1, \XMM8, \XMM8
+ vmovdqu \XMM8, 16*7(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM8
+ .endif
+
+ add $128, %r11
+
+ vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap
+ vpxor TMP1(%rsp), \XMM1, \XMM1 # combine GHASHed value with the corresponding ciphertext
+ vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap
+
+###############################################################################
+
+.L_initial_blocks_done\@:
+
+.endm
+
+# encrypt 8 blocks at a time
+# ghash the 8 previously encrypted ciphertext blocks
+# arg1, arg2, arg3, arg4 are used as pointers only, not modified
+# r11 is the data offset value
+.macro GHASH_8_ENCRYPT_8_PARALLEL_AVX REP T1 T2 T3 T4 T5 T6 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T7 loop_idx ENC_DEC
+
+ vmovdqa \XMM1, \T2
+ vmovdqa \XMM2, TMP2(%rsp)
+ vmovdqa \XMM3, TMP3(%rsp)
+ vmovdqa \XMM4, TMP4(%rsp)
+ vmovdqa \XMM5, TMP5(%rsp)
+ vmovdqa \XMM6, TMP6(%rsp)
+ vmovdqa \XMM7, TMP7(%rsp)
+ vmovdqa \XMM8, TMP8(%rsp)
+
+.if \loop_idx == in_order
+ vpaddd ONE(%rip), \CTR, \XMM1 # INCR CNT
+ vpaddd ONE(%rip), \XMM1, \XMM2
+ vpaddd ONE(%rip), \XMM2, \XMM3
+ vpaddd ONE(%rip), \XMM3, \XMM4
+ vpaddd ONE(%rip), \XMM4, \XMM5
+ vpaddd ONE(%rip), \XMM5, \XMM6
+ vpaddd ONE(%rip), \XMM6, \XMM7
+ vpaddd ONE(%rip), \XMM7, \XMM8
+ vmovdqa \XMM8, \CTR
+
+ vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap
+.else
+ vpaddd ONEf(%rip), \CTR, \XMM1 # INCR CNT
+ vpaddd ONEf(%rip), \XMM1, \XMM2
+ vpaddd ONEf(%rip), \XMM2, \XMM3
+ vpaddd ONEf(%rip), \XMM3, \XMM4
+ vpaddd ONEf(%rip), \XMM4, \XMM5
+ vpaddd ONEf(%rip), \XMM5, \XMM6
+ vpaddd ONEf(%rip), \XMM6, \XMM7
+ vpaddd ONEf(%rip), \XMM7, \XMM8
+ vmovdqa \XMM8, \CTR
+.endif
+
+
+ #######################################################################
+
+ vmovdqu (arg1), \T1
+ vpxor \T1, \XMM1, \XMM1
+ vpxor \T1, \XMM2, \XMM2
+ vpxor \T1, \XMM3, \XMM3
+ vpxor \T1, \XMM4, \XMM4
+ vpxor \T1, \XMM5, \XMM5
+ vpxor \T1, \XMM6, \XMM6
+ vpxor \T1, \XMM7, \XMM7
+ vpxor \T1, \XMM8, \XMM8
+
+ #######################################################################
+
+
+
+
+
+ vmovdqu 16*1(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ vmovdqu 16*2(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+
+ #######################################################################
+
+ vmovdqu HashKey_8(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T2, \T4 # T4 = a1*b1
+ vpclmulqdq $0x00, \T5, \T2, \T7 # T7 = a0*b0
+
+ vpshufd $0b01001110, \T2, \T6
+ vpxor \T2, \T6, \T6
+
+ vmovdqu HashKey_8_k(arg2), \T5
+ vpclmulqdq $0x00, \T5, \T6, \T6
+
+ vmovdqu 16*3(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ vmovdqa TMP2(%rsp), \T1
+ vmovdqu HashKey_7(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpshufd $0b01001110, \T1, \T3
+ vpxor \T1, \T3, \T3
+ vmovdqu HashKey_7_k(arg2), \T5
+ vpclmulqdq $0x10, \T5, \T3, \T3
+ vpxor \T3, \T6, \T6
+
+ vmovdqu 16*4(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ #######################################################################
+
+ vmovdqa TMP3(%rsp), \T1
+ vmovdqu HashKey_6(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpshufd $0b01001110, \T1, \T3
+ vpxor \T1, \T3, \T3
+ vmovdqu HashKey_6_k(arg2), \T5
+ vpclmulqdq $0x10, \T5, \T3, \T3
+ vpxor \T3, \T6, \T6
+
+ vmovdqu 16*5(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ vmovdqa TMP4(%rsp), \T1
+ vmovdqu HashKey_5(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpshufd $0b01001110, \T1, \T3
+ vpxor \T1, \T3, \T3
+ vmovdqu HashKey_5_k(arg2), \T5
+ vpclmulqdq $0x10, \T5, \T3, \T3
+ vpxor \T3, \T6, \T6
+
+ vmovdqu 16*6(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+
+ vmovdqa TMP5(%rsp), \T1
+ vmovdqu HashKey_4(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpshufd $0b01001110, \T1, \T3
+ vpxor \T1, \T3, \T3
+ vmovdqu HashKey_4_k(arg2), \T5
+ vpclmulqdq $0x10, \T5, \T3, \T3
+ vpxor \T3, \T6, \T6
+
+ vmovdqu 16*7(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ vmovdqa TMP6(%rsp), \T1
+ vmovdqu HashKey_3(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpshufd $0b01001110, \T1, \T3
+ vpxor \T1, \T3, \T3
+ vmovdqu HashKey_3_k(arg2), \T5
+ vpclmulqdq $0x10, \T5, \T3, \T3
+ vpxor \T3, \T6, \T6
+
+
+ vmovdqu 16*8(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ vmovdqa TMP7(%rsp), \T1
+ vmovdqu HashKey_2(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpshufd $0b01001110, \T1, \T3
+ vpxor \T1, \T3, \T3
+ vmovdqu HashKey_2_k(arg2), \T5
+ vpclmulqdq $0x10, \T5, \T3, \T3
+ vpxor \T3, \T6, \T6
+
+ #######################################################################
+
+ vmovdqu 16*9(arg1), \T5
+ vaesenc \T5, \XMM1, \XMM1
+ vaesenc \T5, \XMM2, \XMM2
+ vaesenc \T5, \XMM3, \XMM3
+ vaesenc \T5, \XMM4, \XMM4
+ vaesenc \T5, \XMM5, \XMM5
+ vaesenc \T5, \XMM6, \XMM6
+ vaesenc \T5, \XMM7, \XMM7
+ vaesenc \T5, \XMM8, \XMM8
+
+ vmovdqa TMP8(%rsp), \T1
+ vmovdqu HashKey(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpshufd $0b01001110, \T1, \T3
+ vpxor \T1, \T3, \T3
+ vmovdqu HashKey_k(arg2), \T5
+ vpclmulqdq $0x10, \T5, \T3, \T3
+ vpxor \T3, \T6, \T6
+
+ vpxor \T4, \T6, \T6
+ vpxor \T7, \T6, \T6
+
+ vmovdqu 16*10(arg1), \T5
+
+ i = 11
+ setreg
+.rep (\REP-9)
+
+ vaesenc \T5, \XMM1, \XMM1
+ vaesenc \T5, \XMM2, \XMM2
+ vaesenc \T5, \XMM3, \XMM3
+ vaesenc \T5, \XMM4, \XMM4
+ vaesenc \T5, \XMM5, \XMM5
+ vaesenc \T5, \XMM6, \XMM6
+ vaesenc \T5, \XMM7, \XMM7
+ vaesenc \T5, \XMM8, \XMM8
+
+ vmovdqu 16*i(arg1), \T5
+ i = i + 1
+ setreg
+.endr
+
+ i = 0
+ j = 1
+ setreg
+.rep 8
+ vpxor 16*i(arg4, %r11), \T5, \T2
+ .if \ENC_DEC == ENC
+ vaesenclast \T2, reg_j, reg_j
+ .else
+ vaesenclast \T2, reg_j, \T3
+ vmovdqu 16*i(arg4, %r11), reg_j
+ vmovdqu \T3, 16*i(arg3, %r11)
+ .endif
+ i = (i+1)
+ j = (j+1)
+ setreg
+.endr
+ #######################################################################
+
+
+ vpslldq $8, \T6, \T3 # shift-L T3 2 DWs
+ vpsrldq $8, \T6, \T6 # shift-R T2 2 DWs
+ vpxor \T3, \T7, \T7
+ vpxor \T4, \T6, \T6 # accumulate the results in T6:T7
+
+
+
+ #######################################################################
+ #first phase of the reduction
+ #######################################################################
+ vpslld $31, \T7, \T2 # packed right shifting << 31
+ vpslld $30, \T7, \T3 # packed right shifting shift << 30
+ vpslld $25, \T7, \T4 # packed right shifting shift << 25
+
+ vpxor \T3, \T2, \T2 # xor the shifted versions
+ vpxor \T4, \T2, \T2
+
+ vpsrldq $4, \T2, \T1 # shift-R T1 1 DW
+
+ vpslldq $12, \T2, \T2 # shift-L T2 3 DWs
+ vpxor \T2, \T7, \T7 # first phase of the reduction complete
+ #######################################################################
+ .if \ENC_DEC == ENC
+ vmovdqu \XMM1, 16*0(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM2, 16*1(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM3, 16*2(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM4, 16*3(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM5, 16*4(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM6, 16*5(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM7, 16*6(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM8, 16*7(arg3,%r11) # Write to the Ciphertext buffer
+ .endif
+
+ #######################################################################
+ #second phase of the reduction
+ vpsrld $1, \T7, \T2 # packed left shifting >> 1
+ vpsrld $2, \T7, \T3 # packed left shifting >> 2
+ vpsrld $7, \T7, \T4 # packed left shifting >> 7
+ vpxor \T3, \T2, \T2 # xor the shifted versions
+ vpxor \T4, \T2, \T2
+
+ vpxor \T1, \T2, \T2
+ vpxor \T2, \T7, \T7
+ vpxor \T7, \T6, \T6 # the result is in T6
+ #######################################################################
+
+ vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap
+
+
+ vpxor \T6, \XMM1, \XMM1
+
+
+
+.endm
+
+
+# GHASH the last 4 ciphertext blocks.
+.macro GHASH_LAST_8_AVX T1 T2 T3 T4 T5 T6 T7 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8
+
+ ## Karatsuba Method
+
+
+ vpshufd $0b01001110, \XMM1, \T2
+ vpxor \XMM1, \T2, \T2
+ vmovdqu HashKey_8(arg2), \T5
+ vpclmulqdq $0x11, \T5, \XMM1, \T6
+ vpclmulqdq $0x00, \T5, \XMM1, \T7
+
+ vmovdqu HashKey_8_k(arg2), \T3
+ vpclmulqdq $0x00, \T3, \T2, \XMM1
+
+ ######################
+
+ vpshufd $0b01001110, \XMM2, \T2
+ vpxor \XMM2, \T2, \T2
+ vmovdqu HashKey_7(arg2), \T5
+ vpclmulqdq $0x11, \T5, \XMM2, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM2, \T4
+ vpxor \T4, \T7, \T7
+
+ vmovdqu HashKey_7_k(arg2), \T3
+ vpclmulqdq $0x00, \T3, \T2, \T2
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vpshufd $0b01001110, \XMM3, \T2
+ vpxor \XMM3, \T2, \T2
+ vmovdqu HashKey_6(arg2), \T5
+ vpclmulqdq $0x11, \T5, \XMM3, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM3, \T4
+ vpxor \T4, \T7, \T7
+
+ vmovdqu HashKey_6_k(arg2), \T3
+ vpclmulqdq $0x00, \T3, \T2, \T2
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vpshufd $0b01001110, \XMM4, \T2
+ vpxor \XMM4, \T2, \T2
+ vmovdqu HashKey_5(arg2), \T5
+ vpclmulqdq $0x11, \T5, \XMM4, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM4, \T4
+ vpxor \T4, \T7, \T7
+
+ vmovdqu HashKey_5_k(arg2), \T3
+ vpclmulqdq $0x00, \T3, \T2, \T2
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vpshufd $0b01001110, \XMM5, \T2
+ vpxor \XMM5, \T2, \T2
+ vmovdqu HashKey_4(arg2), \T5
+ vpclmulqdq $0x11, \T5, \XMM5, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM5, \T4
+ vpxor \T4, \T7, \T7
+
+ vmovdqu HashKey_4_k(arg2), \T3
+ vpclmulqdq $0x00, \T3, \T2, \T2
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vpshufd $0b01001110, \XMM6, \T2
+ vpxor \XMM6, \T2, \T2
+ vmovdqu HashKey_3(arg2), \T5
+ vpclmulqdq $0x11, \T5, \XMM6, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM6, \T4
+ vpxor \T4, \T7, \T7
+
+ vmovdqu HashKey_3_k(arg2), \T3
+ vpclmulqdq $0x00, \T3, \T2, \T2
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vpshufd $0b01001110, \XMM7, \T2
+ vpxor \XMM7, \T2, \T2
+ vmovdqu HashKey_2(arg2), \T5
+ vpclmulqdq $0x11, \T5, \XMM7, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM7, \T4
+ vpxor \T4, \T7, \T7
+
+ vmovdqu HashKey_2_k(arg2), \T3
+ vpclmulqdq $0x00, \T3, \T2, \T2
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vpshufd $0b01001110, \XMM8, \T2
+ vpxor \XMM8, \T2, \T2
+ vmovdqu HashKey(arg2), \T5
+ vpclmulqdq $0x11, \T5, \XMM8, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM8, \T4
+ vpxor \T4, \T7, \T7
+
+ vmovdqu HashKey_k(arg2), \T3
+ vpclmulqdq $0x00, \T3, \T2, \T2
+
+ vpxor \T2, \XMM1, \XMM1
+ vpxor \T6, \XMM1, \XMM1
+ vpxor \T7, \XMM1, \T2
+
+
+
+
+ vpslldq $8, \T2, \T4
+ vpsrldq $8, \T2, \T2
+
+ vpxor \T4, \T7, \T7
+ vpxor \T2, \T6, \T6 # <T6:T7> holds the result of
+ # the accumulated carry-less multiplications
+
+ #######################################################################
+ #first phase of the reduction
+ vpslld $31, \T7, \T2 # packed right shifting << 31
+ vpslld $30, \T7, \T3 # packed right shifting shift << 30
+ vpslld $25, \T7, \T4 # packed right shifting shift << 25
+
+ vpxor \T3, \T2, \T2 # xor the shifted versions
+ vpxor \T4, \T2, \T2
+
+ vpsrldq $4, \T2, \T1 # shift-R T1 1 DW
+
+ vpslldq $12, \T2, \T2 # shift-L T2 3 DWs
+ vpxor \T2, \T7, \T7 # first phase of the reduction complete
+ #######################################################################
+
+
+ #second phase of the reduction
+ vpsrld $1, \T7, \T2 # packed left shifting >> 1
+ vpsrld $2, \T7, \T3 # packed left shifting >> 2
+ vpsrld $7, \T7, \T4 # packed left shifting >> 7
+ vpxor \T3, \T2, \T2 # xor the shifted versions
+ vpxor \T4, \T2, \T2
+
+ vpxor \T1, \T2, \T2
+ vpxor \T2, \T7, \T7
+ vpxor \T7, \T6, \T6 # the result is in T6
+
+.endm
+
+#############################################################
+#void aesni_gcm_precomp_avx_gen2
+# (gcm_data *my_ctx_data,
+# gcm_context_data *data,
+# u8 *hash_subkey# /* H, the Hash sub key input. Data starts on a 16-byte boundary. */
+# u8 *iv, /* Pre-counter block j0: 4 byte salt
+# (from Security Association) concatenated with 8 byte
+# Initialisation Vector (from IPSec ESP Payload)
+# concatenated with 0x00000001. 16-byte aligned pointer. */
+# const u8 *aad, /* Additional Authentication Data (AAD)*/
+# u64 aad_len) /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
+#############################################################
+SYM_FUNC_START(aesni_gcm_init_avx_gen2)
+ FUNC_SAVE
+ INIT GHASH_MUL_AVX, PRECOMPUTE_AVX
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_init_avx_gen2)
+
+###############################################################################
+#void aesni_gcm_enc_update_avx_gen2(
+# gcm_data *my_ctx_data, /* aligned to 16 Bytes */
+# gcm_context_data *data,
+# u8 *out, /* Ciphertext output. Encrypt in-place is allowed. */
+# const u8 *in, /* Plaintext input */
+# u64 plaintext_len) /* Length of data in Bytes for encryption. */
+###############################################################################
+SYM_FUNC_START(aesni_gcm_enc_update_avx_gen2)
+ FUNC_SAVE
+ mov keysize, %eax
+ cmp $32, %eax
+ je key_256_enc_update
+ cmp $16, %eax
+ je key_128_enc_update
+ # must be 192
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, ENC, 11
+ FUNC_RESTORE
+ RET
+key_128_enc_update:
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, ENC, 9
+ FUNC_RESTORE
+ RET
+key_256_enc_update:
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, ENC, 13
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_enc_update_avx_gen2)
+
+###############################################################################
+#void aesni_gcm_dec_update_avx_gen2(
+# gcm_data *my_ctx_data, /* aligned to 16 Bytes */
+# gcm_context_data *data,
+# u8 *out, /* Plaintext output. Decrypt in-place is allowed. */
+# const u8 *in, /* Ciphertext input */
+# u64 plaintext_len) /* Length of data in Bytes for encryption. */
+###############################################################################
+SYM_FUNC_START(aesni_gcm_dec_update_avx_gen2)
+ FUNC_SAVE
+ mov keysize,%eax
+ cmp $32, %eax
+ je key_256_dec_update
+ cmp $16, %eax
+ je key_128_dec_update
+ # must be 192
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, DEC, 11
+ FUNC_RESTORE
+ RET
+key_128_dec_update:
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, DEC, 9
+ FUNC_RESTORE
+ RET
+key_256_dec_update:
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX, GHASH_8_ENCRYPT_8_PARALLEL_AVX, GHASH_LAST_8_AVX, GHASH_MUL_AVX, DEC, 13
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_dec_update_avx_gen2)
+
+###############################################################################
+#void aesni_gcm_finalize_avx_gen2(
+# gcm_data *my_ctx_data, /* aligned to 16 Bytes */
+# gcm_context_data *data,
+# u8 *auth_tag, /* Authenticated Tag output. */
+# u64 auth_tag_len)# /* Authenticated Tag Length in bytes.
+# Valid values are 16 (most likely), 12 or 8. */
+###############################################################################
+SYM_FUNC_START(aesni_gcm_finalize_avx_gen2)
+ FUNC_SAVE
+ mov keysize,%eax
+ cmp $32, %eax
+ je key_256_finalize
+ cmp $16, %eax
+ je key_128_finalize
+ # must be 192
+ GCM_COMPLETE GHASH_MUL_AVX, 11, arg3, arg4
+ FUNC_RESTORE
+ RET
+key_128_finalize:
+ GCM_COMPLETE GHASH_MUL_AVX, 9, arg3, arg4
+ FUNC_RESTORE
+ RET
+key_256_finalize:
+ GCM_COMPLETE GHASH_MUL_AVX, 13, arg3, arg4
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_finalize_avx_gen2)
+
+###############################################################################
+# GHASH_MUL MACRO to implement: Data*HashKey mod (128,127,126,121,0)
+# Input: A and B (128-bits each, bit-reflected)
+# Output: C = A*B*x mod poly, (i.e. >>1 )
+# To compute GH = GH*HashKey mod poly, give HK = HashKey<<1 mod poly as input
+# GH = GH * HK * x mod poly which is equivalent to GH*HashKey mod poly.
+###############################################################################
+.macro GHASH_MUL_AVX2 GH HK T1 T2 T3 T4 T5
+
+ vpclmulqdq $0x11,\HK,\GH,\T1 # T1 = a1*b1
+ vpclmulqdq $0x00,\HK,\GH,\T2 # T2 = a0*b0
+ vpclmulqdq $0x01,\HK,\GH,\T3 # T3 = a1*b0
+ vpclmulqdq $0x10,\HK,\GH,\GH # GH = a0*b1
+ vpxor \T3, \GH, \GH
+
+
+ vpsrldq $8 , \GH, \T3 # shift-R GH 2 DWs
+ vpslldq $8 , \GH, \GH # shift-L GH 2 DWs
+
+ vpxor \T3, \T1, \T1
+ vpxor \T2, \GH, \GH
+
+ #######################################################################
+ #first phase of the reduction
+ vmovdqa POLY2(%rip), \T3
+
+ vpclmulqdq $0x01, \GH, \T3, \T2
+ vpslldq $8, \T2, \T2 # shift-L T2 2 DWs
+
+ vpxor \T2, \GH, \GH # first phase of the reduction complete
+ #######################################################################
+ #second phase of the reduction
+ vpclmulqdq $0x00, \GH, \T3, \T2
+ vpsrldq $4, \T2, \T2 # shift-R T2 1 DW (Shift-R only 1-DW to obtain 2-DWs shift-R)
+
+ vpclmulqdq $0x10, \GH, \T3, \GH
+ vpslldq $4, \GH, \GH # shift-L GH 1 DW (Shift-L 1-DW to obtain result with no shifts)
+
+ vpxor \T2, \GH, \GH # second phase of the reduction complete
+ #######################################################################
+ vpxor \T1, \GH, \GH # the result is in GH
+
+
+.endm
+
+.macro PRECOMPUTE_AVX2 HK T1 T2 T3 T4 T5 T6
+
+ # Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
+ vmovdqa \HK, \T5
+ GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^2<<1 mod poly
+ vmovdqu \T5, HashKey_2(arg2) # [HashKey_2] = HashKey^2<<1 mod poly
+
+ GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^3<<1 mod poly
+ vmovdqu \T5, HashKey_3(arg2)
+
+ GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^4<<1 mod poly
+ vmovdqu \T5, HashKey_4(arg2)
+
+ GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^5<<1 mod poly
+ vmovdqu \T5, HashKey_5(arg2)
+
+ GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^6<<1 mod poly
+ vmovdqu \T5, HashKey_6(arg2)
+
+ GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^7<<1 mod poly
+ vmovdqu \T5, HashKey_7(arg2)
+
+ GHASH_MUL_AVX2 \T5, \HK, \T1, \T3, \T4, \T6, \T2 # T5 = HashKey^8<<1 mod poly
+ vmovdqu \T5, HashKey_8(arg2)
+
+.endm
+
+## if a = number of total plaintext bytes
+## b = floor(a/16)
+## num_initial_blocks = b mod 4#
+## encrypt the initial num_initial_blocks blocks and apply ghash on the ciphertext
+## r10, r11, r12, rax are clobbered
+## arg1, arg2, arg3, arg4 are used as pointers only, not modified
+
+.macro INITIAL_BLOCKS_AVX2 REP num_initial_blocks T1 T2 T3 T4 T5 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T6 T_key ENC_DEC VER
+ i = (8-\num_initial_blocks)
+ setreg
+ vmovdqu AadHash(arg2), reg_i
+
+ # start AES for num_initial_blocks blocks
+ vmovdqu CurCount(arg2), \CTR
+
+ i = (9-\num_initial_blocks)
+ setreg
+.rep \num_initial_blocks
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, reg_i
+ vpshufb SHUF_MASK(%rip), reg_i, reg_i # perform a 16Byte swap
+ i = (i+1)
+ setreg
+.endr
+
+ vmovdqa (arg1), \T_key
+ i = (9-\num_initial_blocks)
+ setreg
+.rep \num_initial_blocks
+ vpxor \T_key, reg_i, reg_i
+ i = (i+1)
+ setreg
+.endr
+
+ j = 1
+ setreg
+.rep \REP
+ vmovdqa 16*j(arg1), \T_key
+ i = (9-\num_initial_blocks)
+ setreg
+.rep \num_initial_blocks
+ vaesenc \T_key, reg_i, reg_i
+ i = (i+1)
+ setreg
+.endr
+
+ j = (j+1)
+ setreg
+.endr
+
+
+ vmovdqa 16*j(arg1), \T_key
+ i = (9-\num_initial_blocks)
+ setreg
+.rep \num_initial_blocks
+ vaesenclast \T_key, reg_i, reg_i
+ i = (i+1)
+ setreg
+.endr
+
+ i = (9-\num_initial_blocks)
+ setreg
+.rep \num_initial_blocks
+ vmovdqu (arg4, %r11), \T1
+ vpxor \T1, reg_i, reg_i
+ vmovdqu reg_i, (arg3 , %r11) # write back ciphertext for
+ # num_initial_blocks blocks
+ add $16, %r11
+.if \ENC_DEC == DEC
+ vmovdqa \T1, reg_i
+.endif
+ vpshufb SHUF_MASK(%rip), reg_i, reg_i # prepare ciphertext for GHASH computations
+ i = (i+1)
+ setreg
+.endr
+
+
+ i = (8-\num_initial_blocks)
+ j = (9-\num_initial_blocks)
+ setreg
+
+.rep \num_initial_blocks
+ vpxor reg_i, reg_j, reg_j
+ GHASH_MUL_AVX2 reg_j, \T2, \T1, \T3, \T4, \T5, \T6 # apply GHASH on num_initial_blocks blocks
+ i = (i+1)
+ j = (j+1)
+ setreg
+.endr
+ # XMM8 has the combined result here
+
+ vmovdqa \XMM8, TMP1(%rsp)
+ vmovdqa \XMM8, \T3
+
+ cmp $128, %r13
+ jl .L_initial_blocks_done\@ # no need for precomputed constants
+
+###############################################################################
+# Haskey_i_k holds XORed values of the low and high parts of the Haskey_i
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM1
+ vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM2
+ vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM3
+ vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM4
+ vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM5
+ vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM6
+ vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM7
+ vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap
+
+ vpaddd ONE(%rip), \CTR, \CTR # INCR Y0
+ vmovdqa \CTR, \XMM8
+ vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap
+
+ vmovdqa (arg1), \T_key
+ vpxor \T_key, \XMM1, \XMM1
+ vpxor \T_key, \XMM2, \XMM2
+ vpxor \T_key, \XMM3, \XMM3
+ vpxor \T_key, \XMM4, \XMM4
+ vpxor \T_key, \XMM5, \XMM5
+ vpxor \T_key, \XMM6, \XMM6
+ vpxor \T_key, \XMM7, \XMM7
+ vpxor \T_key, \XMM8, \XMM8
+
+ i = 1
+ setreg
+.rep \REP # do REP rounds
+ vmovdqa 16*i(arg1), \T_key
+ vaesenc \T_key, \XMM1, \XMM1
+ vaesenc \T_key, \XMM2, \XMM2
+ vaesenc \T_key, \XMM3, \XMM3
+ vaesenc \T_key, \XMM4, \XMM4
+ vaesenc \T_key, \XMM5, \XMM5
+ vaesenc \T_key, \XMM6, \XMM6
+ vaesenc \T_key, \XMM7, \XMM7
+ vaesenc \T_key, \XMM8, \XMM8
+ i = (i+1)
+ setreg
+.endr
+
+
+ vmovdqa 16*i(arg1), \T_key
+ vaesenclast \T_key, \XMM1, \XMM1
+ vaesenclast \T_key, \XMM2, \XMM2
+ vaesenclast \T_key, \XMM3, \XMM3
+ vaesenclast \T_key, \XMM4, \XMM4
+ vaesenclast \T_key, \XMM5, \XMM5
+ vaesenclast \T_key, \XMM6, \XMM6
+ vaesenclast \T_key, \XMM7, \XMM7
+ vaesenclast \T_key, \XMM8, \XMM8
+
+ vmovdqu (arg4, %r11), \T1
+ vpxor \T1, \XMM1, \XMM1
+ vmovdqu \XMM1, (arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM1
+ .endif
+
+ vmovdqu 16*1(arg4, %r11), \T1
+ vpxor \T1, \XMM2, \XMM2
+ vmovdqu \XMM2, 16*1(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM2
+ .endif
+
+ vmovdqu 16*2(arg4, %r11), \T1
+ vpxor \T1, \XMM3, \XMM3
+ vmovdqu \XMM3, 16*2(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM3
+ .endif
+
+ vmovdqu 16*3(arg4, %r11), \T1
+ vpxor \T1, \XMM4, \XMM4
+ vmovdqu \XMM4, 16*3(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM4
+ .endif
+
+ vmovdqu 16*4(arg4, %r11), \T1
+ vpxor \T1, \XMM5, \XMM5
+ vmovdqu \XMM5, 16*4(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM5
+ .endif
+
+ vmovdqu 16*5(arg4, %r11), \T1
+ vpxor \T1, \XMM6, \XMM6
+ vmovdqu \XMM6, 16*5(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM6
+ .endif
+
+ vmovdqu 16*6(arg4, %r11), \T1
+ vpxor \T1, \XMM7, \XMM7
+ vmovdqu \XMM7, 16*6(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM7
+ .endif
+
+ vmovdqu 16*7(arg4, %r11), \T1
+ vpxor \T1, \XMM8, \XMM8
+ vmovdqu \XMM8, 16*7(arg3 , %r11)
+ .if \ENC_DEC == DEC
+ vmovdqa \T1, \XMM8
+ .endif
+
+ add $128, %r11
+
+ vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap
+ vpxor TMP1(%rsp), \XMM1, \XMM1 # combine GHASHed value with
+ # the corresponding ciphertext
+ vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap
+
+###############################################################################
+
+.L_initial_blocks_done\@:
+
+
+.endm
+
+
+
+# encrypt 8 blocks at a time
+# ghash the 8 previously encrypted ciphertext blocks
+# arg1, arg2, arg3, arg4 are used as pointers only, not modified
+# r11 is the data offset value
+.macro GHASH_8_ENCRYPT_8_PARALLEL_AVX2 REP T1 T2 T3 T4 T5 T6 CTR XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8 T7 loop_idx ENC_DEC
+
+ vmovdqa \XMM1, \T2
+ vmovdqa \XMM2, TMP2(%rsp)
+ vmovdqa \XMM3, TMP3(%rsp)
+ vmovdqa \XMM4, TMP4(%rsp)
+ vmovdqa \XMM5, TMP5(%rsp)
+ vmovdqa \XMM6, TMP6(%rsp)
+ vmovdqa \XMM7, TMP7(%rsp)
+ vmovdqa \XMM8, TMP8(%rsp)
+
+.if \loop_idx == in_order
+ vpaddd ONE(%rip), \CTR, \XMM1 # INCR CNT
+ vpaddd ONE(%rip), \XMM1, \XMM2
+ vpaddd ONE(%rip), \XMM2, \XMM3
+ vpaddd ONE(%rip), \XMM3, \XMM4
+ vpaddd ONE(%rip), \XMM4, \XMM5
+ vpaddd ONE(%rip), \XMM5, \XMM6
+ vpaddd ONE(%rip), \XMM6, \XMM7
+ vpaddd ONE(%rip), \XMM7, \XMM8
+ vmovdqa \XMM8, \CTR
+
+ vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap
+.else
+ vpaddd ONEf(%rip), \CTR, \XMM1 # INCR CNT
+ vpaddd ONEf(%rip), \XMM1, \XMM2
+ vpaddd ONEf(%rip), \XMM2, \XMM3
+ vpaddd ONEf(%rip), \XMM3, \XMM4
+ vpaddd ONEf(%rip), \XMM4, \XMM5
+ vpaddd ONEf(%rip), \XMM5, \XMM6
+ vpaddd ONEf(%rip), \XMM6, \XMM7
+ vpaddd ONEf(%rip), \XMM7, \XMM8
+ vmovdqa \XMM8, \CTR
+.endif
+
+
+ #######################################################################
+
+ vmovdqu (arg1), \T1
+ vpxor \T1, \XMM1, \XMM1
+ vpxor \T1, \XMM2, \XMM2
+ vpxor \T1, \XMM3, \XMM3
+ vpxor \T1, \XMM4, \XMM4
+ vpxor \T1, \XMM5, \XMM5
+ vpxor \T1, \XMM6, \XMM6
+ vpxor \T1, \XMM7, \XMM7
+ vpxor \T1, \XMM8, \XMM8
+
+ #######################################################################
+
+
+
+
+
+ vmovdqu 16*1(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ vmovdqu 16*2(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+
+ #######################################################################
+
+ vmovdqu HashKey_8(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T2, \T4 # T4 = a1*b1
+ vpclmulqdq $0x00, \T5, \T2, \T7 # T7 = a0*b0
+ vpclmulqdq $0x01, \T5, \T2, \T6 # T6 = a1*b0
+ vpclmulqdq $0x10, \T5, \T2, \T5 # T5 = a0*b1
+ vpxor \T5, \T6, \T6
+
+ vmovdqu 16*3(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ vmovdqa TMP2(%rsp), \T1
+ vmovdqu HashKey_7(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpclmulqdq $0x01, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vpclmulqdq $0x10, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vmovdqu 16*4(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ #######################################################################
+
+ vmovdqa TMP3(%rsp), \T1
+ vmovdqu HashKey_6(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpclmulqdq $0x01, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vpclmulqdq $0x10, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vmovdqu 16*5(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ vmovdqa TMP4(%rsp), \T1
+ vmovdqu HashKey_5(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpclmulqdq $0x01, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vpclmulqdq $0x10, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vmovdqu 16*6(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+
+ vmovdqa TMP5(%rsp), \T1
+ vmovdqu HashKey_4(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpclmulqdq $0x01, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vpclmulqdq $0x10, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vmovdqu 16*7(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ vmovdqa TMP6(%rsp), \T1
+ vmovdqu HashKey_3(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpclmulqdq $0x01, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vpclmulqdq $0x10, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vmovdqu 16*8(arg1), \T1
+ vaesenc \T1, \XMM1, \XMM1
+ vaesenc \T1, \XMM2, \XMM2
+ vaesenc \T1, \XMM3, \XMM3
+ vaesenc \T1, \XMM4, \XMM4
+ vaesenc \T1, \XMM5, \XMM5
+ vaesenc \T1, \XMM6, \XMM6
+ vaesenc \T1, \XMM7, \XMM7
+ vaesenc \T1, \XMM8, \XMM8
+
+ vmovdqa TMP7(%rsp), \T1
+ vmovdqu HashKey_2(arg2), \T5
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T4
+
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpclmulqdq $0x01, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vpclmulqdq $0x10, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+
+ #######################################################################
+
+ vmovdqu 16*9(arg1), \T5
+ vaesenc \T5, \XMM1, \XMM1
+ vaesenc \T5, \XMM2, \XMM2
+ vaesenc \T5, \XMM3, \XMM3
+ vaesenc \T5, \XMM4, \XMM4
+ vaesenc \T5, \XMM5, \XMM5
+ vaesenc \T5, \XMM6, \XMM6
+ vaesenc \T5, \XMM7, \XMM7
+ vaesenc \T5, \XMM8, \XMM8
+
+ vmovdqa TMP8(%rsp), \T1
+ vmovdqu HashKey(arg2), \T5
+
+ vpclmulqdq $0x00, \T5, \T1, \T3
+ vpxor \T3, \T7, \T7
+
+ vpclmulqdq $0x01, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vpclmulqdq $0x10, \T5, \T1, \T3
+ vpxor \T3, \T6, \T6
+
+ vpclmulqdq $0x11, \T5, \T1, \T3
+ vpxor \T3, \T4, \T1
+
+
+ vmovdqu 16*10(arg1), \T5
+
+ i = 11
+ setreg
+.rep (\REP-9)
+ vaesenc \T5, \XMM1, \XMM1
+ vaesenc \T5, \XMM2, \XMM2
+ vaesenc \T5, \XMM3, \XMM3
+ vaesenc \T5, \XMM4, \XMM4
+ vaesenc \T5, \XMM5, \XMM5
+ vaesenc \T5, \XMM6, \XMM6
+ vaesenc \T5, \XMM7, \XMM7
+ vaesenc \T5, \XMM8, \XMM8
+
+ vmovdqu 16*i(arg1), \T5
+ i = i + 1
+ setreg
+.endr
+
+ i = 0
+ j = 1
+ setreg
+.rep 8
+ vpxor 16*i(arg4, %r11), \T5, \T2
+ .if \ENC_DEC == ENC
+ vaesenclast \T2, reg_j, reg_j
+ .else
+ vaesenclast \T2, reg_j, \T3
+ vmovdqu 16*i(arg4, %r11), reg_j
+ vmovdqu \T3, 16*i(arg3, %r11)
+ .endif
+ i = (i+1)
+ j = (j+1)
+ setreg
+.endr
+ #######################################################################
+
+
+ vpslldq $8, \T6, \T3 # shift-L T3 2 DWs
+ vpsrldq $8, \T6, \T6 # shift-R T2 2 DWs
+ vpxor \T3, \T7, \T7
+ vpxor \T6, \T1, \T1 # accumulate the results in T1:T7
+
+
+
+ #######################################################################
+ #first phase of the reduction
+ vmovdqa POLY2(%rip), \T3
+
+ vpclmulqdq $0x01, \T7, \T3, \T2
+ vpslldq $8, \T2, \T2 # shift-L xmm2 2 DWs
+
+ vpxor \T2, \T7, \T7 # first phase of the reduction complete
+ #######################################################################
+ .if \ENC_DEC == ENC
+ vmovdqu \XMM1, 16*0(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM2, 16*1(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM3, 16*2(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM4, 16*3(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM5, 16*4(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM6, 16*5(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM7, 16*6(arg3,%r11) # Write to the Ciphertext buffer
+ vmovdqu \XMM8, 16*7(arg3,%r11) # Write to the Ciphertext buffer
+ .endif
+
+ #######################################################################
+ #second phase of the reduction
+ vpclmulqdq $0x00, \T7, \T3, \T2
+ vpsrldq $4, \T2, \T2 # shift-R xmm2 1 DW (Shift-R only 1-DW to obtain 2-DWs shift-R)
+
+ vpclmulqdq $0x10, \T7, \T3, \T4
+ vpslldq $4, \T4, \T4 # shift-L xmm0 1 DW (Shift-L 1-DW to obtain result with no shifts)
+
+ vpxor \T2, \T4, \T4 # second phase of the reduction complete
+ #######################################################################
+ vpxor \T4, \T1, \T1 # the result is in T1
+
+ vpshufb SHUF_MASK(%rip), \XMM1, \XMM1 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM2, \XMM2 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM3, \XMM3 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM4, \XMM4 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM5, \XMM5 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM6, \XMM6 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM7, \XMM7 # perform a 16Byte swap
+ vpshufb SHUF_MASK(%rip), \XMM8, \XMM8 # perform a 16Byte swap
+
+
+ vpxor \T1, \XMM1, \XMM1
+
+
+
+.endm
+
+
+# GHASH the last 4 ciphertext blocks.
+.macro GHASH_LAST_8_AVX2 T1 T2 T3 T4 T5 T6 T7 XMM1 XMM2 XMM3 XMM4 XMM5 XMM6 XMM7 XMM8
+
+ ## Karatsuba Method
+
+ vmovdqu HashKey_8(arg2), \T5
+
+ vpshufd $0b01001110, \XMM1, \T2
+ vpshufd $0b01001110, \T5, \T3
+ vpxor \XMM1, \T2, \T2
+ vpxor \T5, \T3, \T3
+
+ vpclmulqdq $0x11, \T5, \XMM1, \T6
+ vpclmulqdq $0x00, \T5, \XMM1, \T7
+
+ vpclmulqdq $0x00, \T3, \T2, \XMM1
+
+ ######################
+
+ vmovdqu HashKey_7(arg2), \T5
+ vpshufd $0b01001110, \XMM2, \T2
+ vpshufd $0b01001110, \T5, \T3
+ vpxor \XMM2, \T2, \T2
+ vpxor \T5, \T3, \T3
+
+ vpclmulqdq $0x11, \T5, \XMM2, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM2, \T4
+ vpxor \T4, \T7, \T7
+
+ vpclmulqdq $0x00, \T3, \T2, \T2
+
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vmovdqu HashKey_6(arg2), \T5
+ vpshufd $0b01001110, \XMM3, \T2
+ vpshufd $0b01001110, \T5, \T3
+ vpxor \XMM3, \T2, \T2
+ vpxor \T5, \T3, \T3
+
+ vpclmulqdq $0x11, \T5, \XMM3, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM3, \T4
+ vpxor \T4, \T7, \T7
+
+ vpclmulqdq $0x00, \T3, \T2, \T2
+
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vmovdqu HashKey_5(arg2), \T5
+ vpshufd $0b01001110, \XMM4, \T2
+ vpshufd $0b01001110, \T5, \T3
+ vpxor \XMM4, \T2, \T2
+ vpxor \T5, \T3, \T3
+
+ vpclmulqdq $0x11, \T5, \XMM4, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM4, \T4
+ vpxor \T4, \T7, \T7
+
+ vpclmulqdq $0x00, \T3, \T2, \T2
+
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vmovdqu HashKey_4(arg2), \T5
+ vpshufd $0b01001110, \XMM5, \T2
+ vpshufd $0b01001110, \T5, \T3
+ vpxor \XMM5, \T2, \T2
+ vpxor \T5, \T3, \T3
+
+ vpclmulqdq $0x11, \T5, \XMM5, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM5, \T4
+ vpxor \T4, \T7, \T7
+
+ vpclmulqdq $0x00, \T3, \T2, \T2
+
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vmovdqu HashKey_3(arg2), \T5
+ vpshufd $0b01001110, \XMM6, \T2
+ vpshufd $0b01001110, \T5, \T3
+ vpxor \XMM6, \T2, \T2
+ vpxor \T5, \T3, \T3
+
+ vpclmulqdq $0x11, \T5, \XMM6, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM6, \T4
+ vpxor \T4, \T7, \T7
+
+ vpclmulqdq $0x00, \T3, \T2, \T2
+
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vmovdqu HashKey_2(arg2), \T5
+ vpshufd $0b01001110, \XMM7, \T2
+ vpshufd $0b01001110, \T5, \T3
+ vpxor \XMM7, \T2, \T2
+ vpxor \T5, \T3, \T3
+
+ vpclmulqdq $0x11, \T5, \XMM7, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM7, \T4
+ vpxor \T4, \T7, \T7
+
+ vpclmulqdq $0x00, \T3, \T2, \T2
+
+ vpxor \T2, \XMM1, \XMM1
+
+ ######################
+
+ vmovdqu HashKey(arg2), \T5
+ vpshufd $0b01001110, \XMM8, \T2
+ vpshufd $0b01001110, \T5, \T3
+ vpxor \XMM8, \T2, \T2
+ vpxor \T5, \T3, \T3
+
+ vpclmulqdq $0x11, \T5, \XMM8, \T4
+ vpxor \T4, \T6, \T6
+
+ vpclmulqdq $0x00, \T5, \XMM8, \T4
+ vpxor \T4, \T7, \T7
+
+ vpclmulqdq $0x00, \T3, \T2, \T2
+
+ vpxor \T2, \XMM1, \XMM1
+ vpxor \T6, \XMM1, \XMM1
+ vpxor \T7, \XMM1, \T2
+
+
+
+
+ vpslldq $8, \T2, \T4
+ vpsrldq $8, \T2, \T2
+
+ vpxor \T4, \T7, \T7
+ vpxor \T2, \T6, \T6 # <T6:T7> holds the result of the
+ # accumulated carry-less multiplications
+
+ #######################################################################
+ #first phase of the reduction
+ vmovdqa POLY2(%rip), \T3
+
+ vpclmulqdq $0x01, \T7, \T3, \T2
+ vpslldq $8, \T2, \T2 # shift-L xmm2 2 DWs
+
+ vpxor \T2, \T7, \T7 # first phase of the reduction complete
+ #######################################################################
+
+
+ #second phase of the reduction
+ vpclmulqdq $0x00, \T7, \T3, \T2
+ vpsrldq $4, \T2, \T2 # shift-R T2 1 DW (Shift-R only 1-DW to obtain 2-DWs shift-R)
+
+ vpclmulqdq $0x10, \T7, \T3, \T4
+ vpslldq $4, \T4, \T4 # shift-L T4 1 DW (Shift-L 1-DW to obtain result with no shifts)
+
+ vpxor \T2, \T4, \T4 # second phase of the reduction complete
+ #######################################################################
+ vpxor \T4, \T6, \T6 # the result is in T6
+.endm
+
+
+
+#############################################################
+#void aesni_gcm_init_avx_gen4
+# (gcm_data *my_ctx_data,
+# gcm_context_data *data,
+# u8 *iv, /* Pre-counter block j0: 4 byte salt
+# (from Security Association) concatenated with 8 byte
+# Initialisation Vector (from IPSec ESP Payload)
+# concatenated with 0x00000001. 16-byte aligned pointer. */
+# u8 *hash_subkey# /* H, the Hash sub key input. Data starts on a 16-byte boundary. */
+# const u8 *aad, /* Additional Authentication Data (AAD)*/
+# u64 aad_len) /* Length of AAD in bytes. With RFC4106 this is going to be 8 or 12 Bytes */
+#############################################################
+SYM_FUNC_START(aesni_gcm_init_avx_gen4)
+ FUNC_SAVE
+ INIT GHASH_MUL_AVX2, PRECOMPUTE_AVX2
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_init_avx_gen4)
+
+###############################################################################
+#void aesni_gcm_enc_avx_gen4(
+# gcm_data *my_ctx_data, /* aligned to 16 Bytes */
+# gcm_context_data *data,
+# u8 *out, /* Ciphertext output. Encrypt in-place is allowed. */
+# const u8 *in, /* Plaintext input */
+# u64 plaintext_len) /* Length of data in Bytes for encryption. */
+###############################################################################
+SYM_FUNC_START(aesni_gcm_enc_update_avx_gen4)
+ FUNC_SAVE
+ mov keysize,%eax
+ cmp $32, %eax
+ je key_256_enc_update4
+ cmp $16, %eax
+ je key_128_enc_update4
+ # must be 192
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, ENC, 11
+ FUNC_RESTORE
+ RET
+key_128_enc_update4:
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, ENC, 9
+ FUNC_RESTORE
+ RET
+key_256_enc_update4:
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, ENC, 13
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_enc_update_avx_gen4)
+
+###############################################################################
+#void aesni_gcm_dec_update_avx_gen4(
+# gcm_data *my_ctx_data, /* aligned to 16 Bytes */
+# gcm_context_data *data,
+# u8 *out, /* Plaintext output. Decrypt in-place is allowed. */
+# const u8 *in, /* Ciphertext input */
+# u64 plaintext_len) /* Length of data in Bytes for encryption. */
+###############################################################################
+SYM_FUNC_START(aesni_gcm_dec_update_avx_gen4)
+ FUNC_SAVE
+ mov keysize,%eax
+ cmp $32, %eax
+ je key_256_dec_update4
+ cmp $16, %eax
+ je key_128_dec_update4
+ # must be 192
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, DEC, 11
+ FUNC_RESTORE
+ RET
+key_128_dec_update4:
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, DEC, 9
+ FUNC_RESTORE
+ RET
+key_256_dec_update4:
+ GCM_ENC_DEC INITIAL_BLOCKS_AVX2, GHASH_8_ENCRYPT_8_PARALLEL_AVX2, GHASH_LAST_8_AVX2, GHASH_MUL_AVX2, DEC, 13
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_dec_update_avx_gen4)
+
+###############################################################################
+#void aesni_gcm_finalize_avx_gen4(
+# gcm_data *my_ctx_data, /* aligned to 16 Bytes */
+# gcm_context_data *data,
+# u8 *auth_tag, /* Authenticated Tag output. */
+# u64 auth_tag_len)# /* Authenticated Tag Length in bytes.
+# Valid values are 16 (most likely), 12 or 8. */
+###############################################################################
+SYM_FUNC_START(aesni_gcm_finalize_avx_gen4)
+ FUNC_SAVE
+ mov keysize,%eax
+ cmp $32, %eax
+ je key_256_finalize4
+ cmp $16, %eax
+ je key_128_finalize4
+ # must be 192
+ GCM_COMPLETE GHASH_MUL_AVX2, 11, arg3, arg4
+ FUNC_RESTORE
+ RET
+key_128_finalize4:
+ GCM_COMPLETE GHASH_MUL_AVX2, 9, arg3, arg4
+ FUNC_RESTORE
+ RET
+key_256_finalize4:
+ GCM_COMPLETE GHASH_MUL_AVX2, 13, arg3, arg4
+ FUNC_RESTORE
+ RET
+SYM_FUNC_END(aesni_gcm_finalize_avx_gen4)
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index 2577613fb32b..a5b0cb3efeba 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Support for Intel AES-NI instructions. This file contains glue
* code, the real AES implementation is in intel-aes_asm.S.
@@ -12,80 +13,77 @@
* Tadeusz Struk (tadeusz.struk@intel.com)
* Aidan O'Mahony (aidan.o.mahony@intel.com)
* Copyright (c) 2010, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
*/
#include <linux/hardirq.h>
#include <linux/types.h>
-#include <linux/crypto.h>
+#include <linux/module.h>
#include <linux/err.h>
#include <crypto/algapi.h>
#include <crypto/aes.h>
-#include <crypto/cryptd.h>
#include <crypto/ctr.h>
-#include <asm/i387.h>
-#include <asm/aes.h>
+#include <crypto/b128ops.h>
+#include <crypto/gcm.h>
+#include <crypto/xts.h>
+#include <asm/cpu_device_id.h>
+#include <asm/simd.h>
#include <crypto/scatterwalk.h>
#include <crypto/internal/aead.h>
+#include <crypto/internal/simd.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/jump_label.h>
#include <linux/workqueue.h>
#include <linux/spinlock.h>
+#include <linux/static_call.h>
-#if defined(CONFIG_CRYPTO_CTR) || defined(CONFIG_CRYPTO_CTR_MODULE)
-#define HAS_CTR
-#endif
-
-#if defined(CONFIG_CRYPTO_LRW) || defined(CONFIG_CRYPTO_LRW_MODULE)
-#define HAS_LRW
-#endif
-
-#if defined(CONFIG_CRYPTO_PCBC) || defined(CONFIG_CRYPTO_PCBC_MODULE)
-#define HAS_PCBC
-#endif
-
-#if defined(CONFIG_CRYPTO_XTS) || defined(CONFIG_CRYPTO_XTS_MODULE)
-#define HAS_XTS
-#endif
-struct async_aes_ctx {
- struct cryptd_ablkcipher *cryptd_tfm;
-};
+#define AESNI_ALIGN 16
+#define AESNI_ALIGN_ATTR __attribute__ ((__aligned__(AESNI_ALIGN)))
+#define AES_BLOCK_MASK (~(AES_BLOCK_SIZE - 1))
+#define RFC4106_HASH_SUBKEY_SIZE 16
+#define AESNI_ALIGN_EXTRA ((AESNI_ALIGN - 1) & ~(CRYPTO_MINALIGN - 1))
+#define CRYPTO_AES_CTX_SIZE (sizeof(struct crypto_aes_ctx) + AESNI_ALIGN_EXTRA)
+#define XTS_AES_CTX_SIZE (sizeof(struct aesni_xts_ctx) + AESNI_ALIGN_EXTRA)
/* This data is stored at the end of the crypto_tfm struct.
* It's a type of per "session" data storage location.
* This needs to be 16 byte aligned.
*/
struct aesni_rfc4106_gcm_ctx {
- u8 hash_subkey[16];
- struct crypto_aes_ctx aes_key_expanded;
+ u8 hash_subkey[16] AESNI_ALIGN_ATTR;
+ struct crypto_aes_ctx aes_key_expanded AESNI_ALIGN_ATTR;
u8 nonce[4];
- struct cryptd_aead *cryptd_tfm;
};
-struct aesni_gcm_set_hash_subkey_result {
- int err;
- struct completion completion;
+struct generic_gcmaes_ctx {
+ u8 hash_subkey[16] AESNI_ALIGN_ATTR;
+ struct crypto_aes_ctx aes_key_expanded AESNI_ALIGN_ATTR;
};
-struct aesni_hash_subkey_req_data {
- u8 iv[16];
- struct aesni_gcm_set_hash_subkey_result result;
- struct scatterlist sg;
+struct aesni_xts_ctx {
+ u8 raw_tweak_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR;
+ u8 raw_crypt_ctx[sizeof(struct crypto_aes_ctx)] AESNI_ALIGN_ATTR;
};
-#define AESNI_ALIGN (16)
-#define AES_BLOCK_MASK (~(AES_BLOCK_SIZE-1))
-#define RFC4106_HASH_SUBKEY_SIZE 16
+#define GCM_BLOCK_LEN 16
+
+struct gcm_context_data {
+ /* init, update and finalize context data */
+ u8 aad_hash[GCM_BLOCK_LEN];
+ u64 aad_length;
+ u64 in_length;
+ u8 partial_block_enc_key[GCM_BLOCK_LEN];
+ u8 orig_IV[GCM_BLOCK_LEN];
+ u8 current_counter[GCM_BLOCK_LEN];
+ u64 partial_block_len;
+ u64 unused;
+ u8 hash_keys[GCM_BLOCK_LEN * 16];
+};
asmlinkage int aesni_set_key(struct crypto_aes_ctx *ctx, const u8 *in_key,
unsigned int key_len);
-asmlinkage void aesni_enc(struct crypto_aes_ctx *ctx, u8 *out,
- const u8 *in);
-asmlinkage void aesni_dec(struct crypto_aes_ctx *ctx, u8 *out,
- const u8 *in);
+asmlinkage void aesni_enc(const void *ctx, u8 *out, const u8 *in);
+asmlinkage void aesni_dec(const void *ctx, u8 *out, const u8 *in);
asmlinkage void aesni_ecb_enc(struct crypto_aes_ctx *ctx, u8 *out,
const u8 *in, unsigned int len);
asmlinkage void aesni_ecb_dec(struct crypto_aes_ctx *ctx, u8 *out,
@@ -94,59 +92,130 @@ asmlinkage void aesni_cbc_enc(struct crypto_aes_ctx *ctx, u8 *out,
const u8 *in, unsigned int len, u8 *iv);
asmlinkage void aesni_cbc_dec(struct crypto_aes_ctx *ctx, u8 *out,
const u8 *in, unsigned int len, u8 *iv);
+asmlinkage void aesni_cts_cbc_enc(struct crypto_aes_ctx *ctx, u8 *out,
+ const u8 *in, unsigned int len, u8 *iv);
+asmlinkage void aesni_cts_cbc_dec(struct crypto_aes_ctx *ctx, u8 *out,
+ const u8 *in, unsigned int len, u8 *iv);
+
+#define AVX_GEN2_OPTSIZE 640
+#define AVX_GEN4_OPTSIZE 4096
+
+asmlinkage void aesni_xts_encrypt(const struct crypto_aes_ctx *ctx, u8 *out,
+ const u8 *in, unsigned int len, u8 *iv);
+
+asmlinkage void aesni_xts_decrypt(const struct crypto_aes_ctx *ctx, u8 *out,
+ const u8 *in, unsigned int len, u8 *iv);
+
#ifdef CONFIG_X86_64
+
asmlinkage void aesni_ctr_enc(struct crypto_aes_ctx *ctx, u8 *out,
const u8 *in, unsigned int len, u8 *iv);
+DEFINE_STATIC_CALL(aesni_ctr_enc_tfm, aesni_ctr_enc);
+
+/* Scatter / Gather routines, with args similar to above */
+asmlinkage void aesni_gcm_init(void *ctx,
+ struct gcm_context_data *gdata,
+ u8 *iv,
+ u8 *hash_subkey, const u8 *aad,
+ unsigned long aad_len);
+asmlinkage void aesni_gcm_enc_update(void *ctx,
+ struct gcm_context_data *gdata, u8 *out,
+ const u8 *in, unsigned long plaintext_len);
+asmlinkage void aesni_gcm_dec_update(void *ctx,
+ struct gcm_context_data *gdata, u8 *out,
+ const u8 *in,
+ unsigned long ciphertext_len);
+asmlinkage void aesni_gcm_finalize(void *ctx,
+ struct gcm_context_data *gdata,
+ u8 *auth_tag, unsigned long auth_tag_len);
+
+asmlinkage void aes_ctr_enc_128_avx_by8(const u8 *in, u8 *iv,
+ void *keys, u8 *out, unsigned int num_bytes);
+asmlinkage void aes_ctr_enc_192_avx_by8(const u8 *in, u8 *iv,
+ void *keys, u8 *out, unsigned int num_bytes);
+asmlinkage void aes_ctr_enc_256_avx_by8(const u8 *in, u8 *iv,
+ void *keys, u8 *out, unsigned int num_bytes);
+
+
+asmlinkage void aes_xctr_enc_128_avx_by8(const u8 *in, const u8 *iv,
+ const void *keys, u8 *out, unsigned int num_bytes,
+ unsigned int byte_ctr);
+
+asmlinkage void aes_xctr_enc_192_avx_by8(const u8 *in, const u8 *iv,
+ const void *keys, u8 *out, unsigned int num_bytes,
+ unsigned int byte_ctr);
+
+asmlinkage void aes_xctr_enc_256_avx_by8(const u8 *in, const u8 *iv,
+ const void *keys, u8 *out, unsigned int num_bytes,
+ unsigned int byte_ctr);
-/* asmlinkage void aesni_gcm_enc()
- * void *ctx, AES Key schedule. Starts on a 16 byte boundary.
- * u8 *out, Ciphertext output. Encrypt in-place is allowed.
- * const u8 *in, Plaintext input
- * unsigned long plaintext_len, Length of data in bytes for encryption.
- * u8 *iv, Pre-counter block j0: 4 byte salt (from Security Association)
- * concatenated with 8 byte Initialisation Vector (from IPSec ESP
- * Payload) concatenated with 0x00000001. 16-byte aligned pointer.
- * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary.
- * const u8 *aad, Additional Authentication Data (AAD)
- * unsigned long aad_len, Length of AAD in bytes. With RFC4106 this
- * is going to be 8 or 12 bytes
- * u8 *auth_tag, Authenticated Tag output.
- * unsigned long auth_tag_len), Authenticated Tag Length in bytes.
- * Valid values are 16 (most likely), 12 or 8.
+/*
+ * asmlinkage void aesni_gcm_init_avx_gen2()
+ * gcm_data *my_ctx_data, context data
+ * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary.
*/
-asmlinkage void aesni_gcm_enc(void *ctx, u8 *out,
- const u8 *in, unsigned long plaintext_len, u8 *iv,
- u8 *hash_subkey, const u8 *aad, unsigned long aad_len,
- u8 *auth_tag, unsigned long auth_tag_len);
-
-/* asmlinkage void aesni_gcm_dec()
- * void *ctx, AES Key schedule. Starts on a 16 byte boundary.
- * u8 *out, Plaintext output. Decrypt in-place is allowed.
- * const u8 *in, Ciphertext input
- * unsigned long ciphertext_len, Length of data in bytes for decryption.
- * u8 *iv, Pre-counter block j0: 4 byte salt (from Security Association)
- * concatenated with 8 byte Initialisation Vector (from IPSec ESP
- * Payload) concatenated with 0x00000001. 16-byte aligned pointer.
- * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary.
- * const u8 *aad, Additional Authentication Data (AAD)
- * unsigned long aad_len, Length of AAD in bytes. With RFC4106 this is going
- * to be 8 or 12 bytes
- * u8 *auth_tag, Authenticated Tag output.
- * unsigned long auth_tag_len) Authenticated Tag Length in bytes.
- * Valid values are 16 (most likely), 12 or 8.
+asmlinkage void aesni_gcm_init_avx_gen2(void *my_ctx_data,
+ struct gcm_context_data *gdata,
+ u8 *iv,
+ u8 *hash_subkey,
+ const u8 *aad,
+ unsigned long aad_len);
+
+asmlinkage void aesni_gcm_enc_update_avx_gen2(void *ctx,
+ struct gcm_context_data *gdata, u8 *out,
+ const u8 *in, unsigned long plaintext_len);
+asmlinkage void aesni_gcm_dec_update_avx_gen2(void *ctx,
+ struct gcm_context_data *gdata, u8 *out,
+ const u8 *in,
+ unsigned long ciphertext_len);
+asmlinkage void aesni_gcm_finalize_avx_gen2(void *ctx,
+ struct gcm_context_data *gdata,
+ u8 *auth_tag, unsigned long auth_tag_len);
+
+/*
+ * asmlinkage void aesni_gcm_init_avx_gen4()
+ * gcm_data *my_ctx_data, context data
+ * u8 *hash_subkey, the Hash sub key input. Data starts on a 16-byte boundary.
*/
-asmlinkage void aesni_gcm_dec(void *ctx, u8 *out,
- const u8 *in, unsigned long ciphertext_len, u8 *iv,
- u8 *hash_subkey, const u8 *aad, unsigned long aad_len,
- u8 *auth_tag, unsigned long auth_tag_len);
+asmlinkage void aesni_gcm_init_avx_gen4(void *my_ctx_data,
+ struct gcm_context_data *gdata,
+ u8 *iv,
+ u8 *hash_subkey,
+ const u8 *aad,
+ unsigned long aad_len);
+
+asmlinkage void aesni_gcm_enc_update_avx_gen4(void *ctx,
+ struct gcm_context_data *gdata, u8 *out,
+ const u8 *in, unsigned long plaintext_len);
+asmlinkage void aesni_gcm_dec_update_avx_gen4(void *ctx,
+ struct gcm_context_data *gdata, u8 *out,
+ const u8 *in,
+ unsigned long ciphertext_len);
+asmlinkage void aesni_gcm_finalize_avx_gen4(void *ctx,
+ struct gcm_context_data *gdata,
+ u8 *auth_tag, unsigned long auth_tag_len);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(gcm_use_avx);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(gcm_use_avx2);
static inline struct
aesni_rfc4106_gcm_ctx *aesni_rfc4106_gcm_ctx_get(struct crypto_aead *tfm)
{
- return
- (struct aesni_rfc4106_gcm_ctx *)
- PTR_ALIGN((u8 *)
- crypto_tfm_ctx(crypto_aead_tfm(tfm)), AESNI_ALIGN);
+ unsigned long align = AESNI_ALIGN;
+
+ if (align <= crypto_tfm_ctx_alignment())
+ align = 1;
+ return PTR_ALIGN(crypto_aead_ctx(tfm), align);
+}
+
+static inline struct
+generic_gcmaes_ctx *generic_gcmaes_ctx_get(struct crypto_aead *tfm)
+{
+ unsigned long align = AESNI_ALIGN;
+
+ if (align <= crypto_tfm_ctx_alignment())
+ align = 1;
+ return PTR_ALIGN(crypto_aead_ctx(tfm), align);
}
#endif
@@ -164,17 +233,14 @@ static int aes_set_key_common(struct crypto_tfm *tfm, void *raw_ctx,
const u8 *in_key, unsigned int key_len)
{
struct crypto_aes_ctx *ctx = aes_ctx(raw_ctx);
- u32 *flags = &tfm->crt_flags;
int err;
if (key_len != AES_KEYSIZE_128 && key_len != AES_KEYSIZE_192 &&
- key_len != AES_KEYSIZE_256) {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+ key_len != AES_KEYSIZE_256)
return -EINVAL;
- }
- if (!irq_fpu_usable())
- err = crypto_aes_expand_key(ctx, in_key, key_len);
+ if (!crypto_simd_usable())
+ err = aes_expandkey(ctx, in_key, key_len);
else {
kernel_fpu_begin();
err = aesni_set_key(ctx, in_key, key_len);
@@ -190,907 +256,590 @@ static int aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
return aes_set_key_common(tfm, crypto_tfm_ctx(tfm), in_key, key_len);
}
-static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void aesni_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm));
- if (!irq_fpu_usable())
- crypto_aes_encrypt_x86(ctx, dst, src);
- else {
+ if (!crypto_simd_usable()) {
+ aes_encrypt(ctx, dst, src);
+ } else {
kernel_fpu_begin();
aesni_enc(ctx, dst, src);
kernel_fpu_end();
}
}
-static void aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static void aesni_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm));
- if (!irq_fpu_usable())
- crypto_aes_decrypt_x86(ctx, dst, src);
- else {
+ if (!crypto_simd_usable()) {
+ aes_decrypt(ctx, dst, src);
+ } else {
kernel_fpu_begin();
aesni_dec(ctx, dst, src);
kernel_fpu_end();
}
}
-static struct crypto_alg aesni_alg = {
- .cra_name = "aes",
- .cra_driver_name = "aes-aesni",
- .cra_priority = 300,
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1,
- .cra_alignmask = 0,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(aesni_alg.cra_list),
- .cra_u = {
- .cipher = {
- .cia_min_keysize = AES_MIN_KEY_SIZE,
- .cia_max_keysize = AES_MAX_KEY_SIZE,
- .cia_setkey = aes_set_key,
- .cia_encrypt = aes_encrypt,
- .cia_decrypt = aes_decrypt
- }
- }
-};
-
-static void __aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static int aesni_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int len)
{
- struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm));
-
- aesni_enc(ctx, dst, src);
+ return aes_set_key_common(crypto_skcipher_tfm(tfm),
+ crypto_skcipher_ctx(tfm), key, len);
}
-static void __aes_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+static int ecb_encrypt(struct skcipher_request *req)
{
- struct crypto_aes_ctx *ctx = aes_ctx(crypto_tfm_ctx(tfm));
-
- aesni_dec(ctx, dst, src);
-}
-
-static struct crypto_alg __aesni_alg = {
- .cra_name = "__aes-aesni",
- .cra_driver_name = "__driver-aes-aesni",
- .cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1,
- .cra_alignmask = 0,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(__aesni_alg.cra_list),
- .cra_u = {
- .cipher = {
- .cia_min_keysize = AES_MIN_KEY_SIZE,
- .cia_max_keysize = AES_MAX_KEY_SIZE,
- .cia_setkey = aes_set_key,
- .cia_encrypt = __aes_encrypt,
- .cia_decrypt = __aes_decrypt
- }
- }
-};
-
-static int ecb_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
-{
- struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
- struct blkcipher_walk walk;
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
+ struct skcipher_walk walk;
+ unsigned int nbytes;
int err;
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt(desc, &walk);
- desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+ err = skcipher_walk_virt(&walk, req, false);
- kernel_fpu_begin();
while ((nbytes = walk.nbytes)) {
+ kernel_fpu_begin();
aesni_ecb_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr,
nbytes & AES_BLOCK_MASK);
+ kernel_fpu_end();
nbytes &= AES_BLOCK_SIZE - 1;
- err = blkcipher_walk_done(desc, &walk, nbytes);
+ err = skcipher_walk_done(&walk, nbytes);
}
- kernel_fpu_end();
return err;
}
-static int ecb_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
+static int ecb_decrypt(struct skcipher_request *req)
{
- struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
- struct blkcipher_walk walk;
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
+ struct skcipher_walk walk;
+ unsigned int nbytes;
int err;
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt(desc, &walk);
- desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+ err = skcipher_walk_virt(&walk, req, false);
- kernel_fpu_begin();
while ((nbytes = walk.nbytes)) {
+ kernel_fpu_begin();
aesni_ecb_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr,
nbytes & AES_BLOCK_MASK);
+ kernel_fpu_end();
nbytes &= AES_BLOCK_SIZE - 1;
- err = blkcipher_walk_done(desc, &walk, nbytes);
+ err = skcipher_walk_done(&walk, nbytes);
}
- kernel_fpu_end();
return err;
}
-static struct crypto_alg blk_ecb_alg = {
- .cra_name = "__ecb-aes-aesni",
- .cra_driver_name = "__driver-ecb-aes-aesni",
- .cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1,
- .cra_alignmask = 0,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(blk_ecb_alg.cra_list),
- .cra_u = {
- .blkcipher = {
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .setkey = aes_set_key,
- .encrypt = ecb_encrypt,
- .decrypt = ecb_decrypt,
- },
- },
-};
-
-static int cbc_encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
+static int cbc_encrypt(struct skcipher_request *req)
{
- struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
- struct blkcipher_walk walk;
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
+ struct skcipher_walk walk;
+ unsigned int nbytes;
int err;
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt(desc, &walk);
- desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+ err = skcipher_walk_virt(&walk, req, false);
- kernel_fpu_begin();
while ((nbytes = walk.nbytes)) {
+ kernel_fpu_begin();
aesni_cbc_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr,
nbytes & AES_BLOCK_MASK, walk.iv);
+ kernel_fpu_end();
nbytes &= AES_BLOCK_SIZE - 1;
- err = blkcipher_walk_done(desc, &walk, nbytes);
+ err = skcipher_walk_done(&walk, nbytes);
}
- kernel_fpu_end();
return err;
}
-static int cbc_decrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
+static int cbc_decrypt(struct skcipher_request *req)
{
- struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
- struct blkcipher_walk walk;
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
+ struct skcipher_walk walk;
+ unsigned int nbytes;
int err;
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt(desc, &walk);
- desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+ err = skcipher_walk_virt(&walk, req, false);
- kernel_fpu_begin();
while ((nbytes = walk.nbytes)) {
+ kernel_fpu_begin();
aesni_cbc_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr,
nbytes & AES_BLOCK_MASK, walk.iv);
+ kernel_fpu_end();
nbytes &= AES_BLOCK_SIZE - 1;
- err = blkcipher_walk_done(desc, &walk, nbytes);
+ err = skcipher_walk_done(&walk, nbytes);
}
- kernel_fpu_end();
return err;
}
-static struct crypto_alg blk_cbc_alg = {
- .cra_name = "__cbc-aes-aesni",
- .cra_driver_name = "__driver-cbc-aes-aesni",
- .cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1,
- .cra_alignmask = 0,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(blk_cbc_alg.cra_list),
- .cra_u = {
- .blkcipher = {
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .setkey = aes_set_key,
- .encrypt = cbc_encrypt,
- .decrypt = cbc_decrypt,
- },
- },
-};
-
-#ifdef CONFIG_X86_64
-static void ctr_crypt_final(struct crypto_aes_ctx *ctx,
- struct blkcipher_walk *walk)
-{
- u8 *ctrblk = walk->iv;
- u8 keystream[AES_BLOCK_SIZE];
- u8 *src = walk->src.virt.addr;
- u8 *dst = walk->dst.virt.addr;
- unsigned int nbytes = walk->nbytes;
-
- aesni_enc(ctx, keystream, ctrblk);
- crypto_xor(keystream, src, nbytes);
- memcpy(dst, keystream, nbytes);
- crypto_inc(ctrblk, AES_BLOCK_SIZE);
-}
-
-static int ctr_crypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
+static int cts_cbc_encrypt(struct skcipher_request *req)
{
- struct crypto_aes_ctx *ctx = aes_ctx(crypto_blkcipher_ctx(desc->tfm));
- struct blkcipher_walk walk;
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
+ int cbc_blocks = DIV_ROUND_UP(req->cryptlen, AES_BLOCK_SIZE) - 2;
+ struct scatterlist *src = req->src, *dst = req->dst;
+ struct scatterlist sg_src[2], sg_dst[2];
+ struct skcipher_request subreq;
+ struct skcipher_walk walk;
int err;
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt_block(desc, &walk, AES_BLOCK_SIZE);
- desc->flags &= ~CRYPTO_TFM_REQ_MAY_SLEEP;
+ skcipher_request_set_tfm(&subreq, tfm);
+ skcipher_request_set_callback(&subreq, skcipher_request_flags(req),
+ NULL, NULL);
- kernel_fpu_begin();
- while ((nbytes = walk.nbytes) >= AES_BLOCK_SIZE) {
- aesni_ctr_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr,
- nbytes & AES_BLOCK_MASK, walk.iv);
- nbytes &= AES_BLOCK_SIZE - 1;
- err = blkcipher_walk_done(desc, &walk, nbytes);
+ if (req->cryptlen <= AES_BLOCK_SIZE) {
+ if (req->cryptlen < AES_BLOCK_SIZE)
+ return -EINVAL;
+ cbc_blocks = 1;
}
- if (walk.nbytes) {
- ctr_crypt_final(ctx, &walk);
- err = blkcipher_walk_done(desc, &walk, 0);
- }
- kernel_fpu_end();
-
- return err;
-}
-static struct crypto_alg blk_ctr_alg = {
- .cra_name = "__ctr-aes-aesni",
- .cra_driver_name = "__driver-ctr-aes-aesni",
- .cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct crypto_aes_ctx)+AESNI_ALIGN-1,
- .cra_alignmask = 0,
- .cra_type = &crypto_blkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(blk_ctr_alg.cra_list),
- .cra_u = {
- .blkcipher = {
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .ivsize = AES_BLOCK_SIZE,
- .setkey = aes_set_key,
- .encrypt = ctr_crypt,
- .decrypt = ctr_crypt,
- },
- },
-};
-#endif
+ if (cbc_blocks > 0) {
+ skcipher_request_set_crypt(&subreq, req->src, req->dst,
+ cbc_blocks * AES_BLOCK_SIZE,
+ req->iv);
-static int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key,
- unsigned int key_len)
-{
- struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm);
- struct crypto_ablkcipher *child = &ctx->cryptd_tfm->base;
- int err;
+ err = cbc_encrypt(&subreq);
+ if (err)
+ return err;
- crypto_ablkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
- crypto_ablkcipher_set_flags(child, crypto_ablkcipher_get_flags(tfm)
- & CRYPTO_TFM_REQ_MASK);
- err = crypto_ablkcipher_setkey(child, key, key_len);
- crypto_ablkcipher_set_flags(tfm, crypto_ablkcipher_get_flags(child)
- & CRYPTO_TFM_RES_MASK);
- return err;
-}
+ if (req->cryptlen == AES_BLOCK_SIZE)
+ return 0;
-static int ablk_encrypt(struct ablkcipher_request *req)
-{
- struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
- struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm);
-
- if (!irq_fpu_usable()) {
- struct ablkcipher_request *cryptd_req =
- ablkcipher_request_ctx(req);
- memcpy(cryptd_req, req, sizeof(*req));
- ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
- return crypto_ablkcipher_encrypt(cryptd_req);
- } else {
- struct blkcipher_desc desc;
- desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
- desc.info = req->info;
- desc.flags = 0;
- return crypto_blkcipher_crt(desc.tfm)->encrypt(
- &desc, req->dst, req->src, req->nbytes);
+ dst = src = scatterwalk_ffwd(sg_src, req->src, subreq.cryptlen);
+ if (req->dst != req->src)
+ dst = scatterwalk_ffwd(sg_dst, req->dst,
+ subreq.cryptlen);
}
-}
-static int ablk_decrypt(struct ablkcipher_request *req)
-{
- struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
- struct async_aes_ctx *ctx = crypto_ablkcipher_ctx(tfm);
-
- if (!irq_fpu_usable()) {
- struct ablkcipher_request *cryptd_req =
- ablkcipher_request_ctx(req);
- memcpy(cryptd_req, req, sizeof(*req));
- ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
- return crypto_ablkcipher_decrypt(cryptd_req);
- } else {
- struct blkcipher_desc desc;
- desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
- desc.info = req->info;
- desc.flags = 0;
- return crypto_blkcipher_crt(desc.tfm)->decrypt(
- &desc, req->dst, req->src, req->nbytes);
- }
-}
-
-static void ablk_exit(struct crypto_tfm *tfm)
-{
- struct async_aes_ctx *ctx = crypto_tfm_ctx(tfm);
+ /* handle ciphertext stealing */
+ skcipher_request_set_crypt(&subreq, src, dst,
+ req->cryptlen - cbc_blocks * AES_BLOCK_SIZE,
+ req->iv);
- cryptd_free_ablkcipher(ctx->cryptd_tfm);
-}
+ err = skcipher_walk_virt(&walk, &subreq, false);
+ if (err)
+ return err;
-static void ablk_init_common(struct crypto_tfm *tfm,
- struct cryptd_ablkcipher *cryptd_tfm)
-{
- struct async_aes_ctx *ctx = crypto_tfm_ctx(tfm);
+ kernel_fpu_begin();
+ aesni_cts_cbc_enc(ctx, walk.dst.virt.addr, walk.src.virt.addr,
+ walk.nbytes, walk.iv);
+ kernel_fpu_end();
- ctx->cryptd_tfm = cryptd_tfm;
- tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request) +
- crypto_ablkcipher_reqsize(&cryptd_tfm->base);
+ return skcipher_walk_done(&walk, 0);
}
-static int ablk_ecb_init(struct crypto_tfm *tfm)
+static int cts_cbc_decrypt(struct skcipher_request *req)
{
- struct cryptd_ablkcipher *cryptd_tfm;
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
+ int cbc_blocks = DIV_ROUND_UP(req->cryptlen, AES_BLOCK_SIZE) - 2;
+ struct scatterlist *src = req->src, *dst = req->dst;
+ struct scatterlist sg_src[2], sg_dst[2];
+ struct skcipher_request subreq;
+ struct skcipher_walk walk;
+ int err;
- cryptd_tfm = cryptd_alloc_ablkcipher("__driver-ecb-aes-aesni", 0, 0);
- if (IS_ERR(cryptd_tfm))
- return PTR_ERR(cryptd_tfm);
- ablk_init_common(tfm, cryptd_tfm);
- return 0;
-}
+ skcipher_request_set_tfm(&subreq, tfm);
+ skcipher_request_set_callback(&subreq, skcipher_request_flags(req),
+ NULL, NULL);
-static struct crypto_alg ablk_ecb_alg = {
- .cra_name = "ecb(aes)",
- .cra_driver_name = "ecb-aes-aesni",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_ablkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ablk_ecb_alg.cra_list),
- .cra_init = ablk_ecb_init,
- .cra_exit = ablk_exit,
- .cra_u = {
- .ablkcipher = {
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .setkey = ablk_set_key,
- .encrypt = ablk_encrypt,
- .decrypt = ablk_decrypt,
- },
- },
-};
+ if (req->cryptlen <= AES_BLOCK_SIZE) {
+ if (req->cryptlen < AES_BLOCK_SIZE)
+ return -EINVAL;
+ cbc_blocks = 1;
+ }
-static int ablk_cbc_init(struct crypto_tfm *tfm)
-{
- struct cryptd_ablkcipher *cryptd_tfm;
+ if (cbc_blocks > 0) {
+ skcipher_request_set_crypt(&subreq, req->src, req->dst,
+ cbc_blocks * AES_BLOCK_SIZE,
+ req->iv);
- cryptd_tfm = cryptd_alloc_ablkcipher("__driver-cbc-aes-aesni", 0, 0);
- if (IS_ERR(cryptd_tfm))
- return PTR_ERR(cryptd_tfm);
- ablk_init_common(tfm, cryptd_tfm);
- return 0;
-}
+ err = cbc_decrypt(&subreq);
+ if (err)
+ return err;
-static struct crypto_alg ablk_cbc_alg = {
- .cra_name = "cbc(aes)",
- .cra_driver_name = "cbc-aes-aesni",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_ablkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ablk_cbc_alg.cra_list),
- .cra_init = ablk_cbc_init,
- .cra_exit = ablk_exit,
- .cra_u = {
- .ablkcipher = {
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .ivsize = AES_BLOCK_SIZE,
- .setkey = ablk_set_key,
- .encrypt = ablk_encrypt,
- .decrypt = ablk_decrypt,
- },
- },
-};
+ if (req->cryptlen == AES_BLOCK_SIZE)
+ return 0;
-#ifdef CONFIG_X86_64
-static int ablk_ctr_init(struct crypto_tfm *tfm)
-{
- struct cryptd_ablkcipher *cryptd_tfm;
+ dst = src = scatterwalk_ffwd(sg_src, req->src, subreq.cryptlen);
+ if (req->dst != req->src)
+ dst = scatterwalk_ffwd(sg_dst, req->dst,
+ subreq.cryptlen);
+ }
- cryptd_tfm = cryptd_alloc_ablkcipher("__driver-ctr-aes-aesni", 0, 0);
- if (IS_ERR(cryptd_tfm))
- return PTR_ERR(cryptd_tfm);
- ablk_init_common(tfm, cryptd_tfm);
- return 0;
-}
+ /* handle ciphertext stealing */
+ skcipher_request_set_crypt(&subreq, src, dst,
+ req->cryptlen - cbc_blocks * AES_BLOCK_SIZE,
+ req->iv);
-static struct crypto_alg ablk_ctr_alg = {
- .cra_name = "ctr(aes)",
- .cra_driver_name = "ctr-aes-aesni",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_ablkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ablk_ctr_alg.cra_list),
- .cra_init = ablk_ctr_init,
- .cra_exit = ablk_exit,
- .cra_u = {
- .ablkcipher = {
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .ivsize = AES_BLOCK_SIZE,
- .setkey = ablk_set_key,
- .encrypt = ablk_encrypt,
- .decrypt = ablk_encrypt,
- .geniv = "chainiv",
- },
- },
-};
+ err = skcipher_walk_virt(&walk, &subreq, false);
+ if (err)
+ return err;
-#ifdef HAS_CTR
-static int ablk_rfc3686_ctr_init(struct crypto_tfm *tfm)
-{
- struct cryptd_ablkcipher *cryptd_tfm;
+ kernel_fpu_begin();
+ aesni_cts_cbc_dec(ctx, walk.dst.virt.addr, walk.src.virt.addr,
+ walk.nbytes, walk.iv);
+ kernel_fpu_end();
- cryptd_tfm = cryptd_alloc_ablkcipher(
- "rfc3686(__driver-ctr-aes-aesni)", 0, 0);
- if (IS_ERR(cryptd_tfm))
- return PTR_ERR(cryptd_tfm);
- ablk_init_common(tfm, cryptd_tfm);
- return 0;
+ return skcipher_walk_done(&walk, 0);
}
-static struct crypto_alg ablk_rfc3686_ctr_alg = {
- .cra_name = "rfc3686(ctr(aes))",
- .cra_driver_name = "rfc3686-ctr-aes-aesni",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_ablkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ablk_rfc3686_ctr_alg.cra_list),
- .cra_init = ablk_rfc3686_ctr_init,
- .cra_exit = ablk_exit,
- .cra_u = {
- .ablkcipher = {
- .min_keysize = AES_MIN_KEY_SIZE+CTR_RFC3686_NONCE_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE+CTR_RFC3686_NONCE_SIZE,
- .ivsize = CTR_RFC3686_IV_SIZE,
- .setkey = ablk_set_key,
- .encrypt = ablk_encrypt,
- .decrypt = ablk_decrypt,
- .geniv = "seqiv",
- },
- },
-};
-#endif
-#endif
-
-#ifdef HAS_LRW
-static int ablk_lrw_init(struct crypto_tfm *tfm)
+#ifdef CONFIG_X86_64
+static void aesni_ctr_enc_avx_tfm(struct crypto_aes_ctx *ctx, u8 *out,
+ const u8 *in, unsigned int len, u8 *iv)
{
- struct cryptd_ablkcipher *cryptd_tfm;
-
- cryptd_tfm = cryptd_alloc_ablkcipher("fpu(lrw(__driver-aes-aesni))",
- 0, 0);
- if (IS_ERR(cryptd_tfm))
- return PTR_ERR(cryptd_tfm);
- ablk_init_common(tfm, cryptd_tfm);
- return 0;
+ /*
+ * based on key length, override with the by8 version
+ * of ctr mode encryption/decryption for improved performance
+ * aes_set_key_common() ensures that key length is one of
+ * {128,192,256}
+ */
+ if (ctx->key_length == AES_KEYSIZE_128)
+ aes_ctr_enc_128_avx_by8(in, iv, (void *)ctx, out, len);
+ else if (ctx->key_length == AES_KEYSIZE_192)
+ aes_ctr_enc_192_avx_by8(in, iv, (void *)ctx, out, len);
+ else
+ aes_ctr_enc_256_avx_by8(in, iv, (void *)ctx, out, len);
}
-static struct crypto_alg ablk_lrw_alg = {
- .cra_name = "lrw(aes)",
- .cra_driver_name = "lrw-aes-aesni",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_ablkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ablk_lrw_alg.cra_list),
- .cra_init = ablk_lrw_init,
- .cra_exit = ablk_exit,
- .cra_u = {
- .ablkcipher = {
- .min_keysize = AES_MIN_KEY_SIZE + AES_BLOCK_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE + AES_BLOCK_SIZE,
- .ivsize = AES_BLOCK_SIZE,
- .setkey = ablk_set_key,
- .encrypt = ablk_encrypt,
- .decrypt = ablk_decrypt,
- },
- },
-};
-#endif
-
-#ifdef HAS_PCBC
-static int ablk_pcbc_init(struct crypto_tfm *tfm)
+static int ctr_crypt(struct skcipher_request *req)
{
- struct cryptd_ablkcipher *cryptd_tfm;
-
- cryptd_tfm = cryptd_alloc_ablkcipher("fpu(pcbc(__driver-aes-aesni))",
- 0, 0);
- if (IS_ERR(cryptd_tfm))
- return PTR_ERR(cryptd_tfm);
- ablk_init_common(tfm, cryptd_tfm);
- return 0;
-}
-
-static struct crypto_alg ablk_pcbc_alg = {
- .cra_name = "pcbc(aes)",
- .cra_driver_name = "pcbc-aes-aesni",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_ablkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ablk_pcbc_alg.cra_list),
- .cra_init = ablk_pcbc_init,
- .cra_exit = ablk_exit,
- .cra_u = {
- .ablkcipher = {
- .min_keysize = AES_MIN_KEY_SIZE,
- .max_keysize = AES_MAX_KEY_SIZE,
- .ivsize = AES_BLOCK_SIZE,
- .setkey = ablk_set_key,
- .encrypt = ablk_encrypt,
- .decrypt = ablk_decrypt,
- },
- },
-};
-#endif
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
+ u8 keystream[AES_BLOCK_SIZE];
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
-#ifdef HAS_XTS
-static int ablk_xts_init(struct crypto_tfm *tfm)
-{
- struct cryptd_ablkcipher *cryptd_tfm;
+ err = skcipher_walk_virt(&walk, req, false);
- cryptd_tfm = cryptd_alloc_ablkcipher("fpu(xts(__driver-aes-aesni))",
- 0, 0);
- if (IS_ERR(cryptd_tfm))
- return PTR_ERR(cryptd_tfm);
- ablk_init_common(tfm, cryptd_tfm);
- return 0;
+ while ((nbytes = walk.nbytes) > 0) {
+ kernel_fpu_begin();
+ if (nbytes & AES_BLOCK_MASK)
+ static_call(aesni_ctr_enc_tfm)(ctx, walk.dst.virt.addr,
+ walk.src.virt.addr,
+ nbytes & AES_BLOCK_MASK,
+ walk.iv);
+ nbytes &= ~AES_BLOCK_MASK;
+
+ if (walk.nbytes == walk.total && nbytes > 0) {
+ aesni_enc(ctx, keystream, walk.iv);
+ crypto_xor_cpy(walk.dst.virt.addr + walk.nbytes - nbytes,
+ walk.src.virt.addr + walk.nbytes - nbytes,
+ keystream, nbytes);
+ crypto_inc(walk.iv, AES_BLOCK_SIZE);
+ nbytes = 0;
+ }
+ kernel_fpu_end();
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+ return err;
}
-static struct crypto_alg ablk_xts_alg = {
- .cra_name = "xts(aes)",
- .cra_driver_name = "xts-aes-aesni",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
- .cra_blocksize = AES_BLOCK_SIZE,
- .cra_ctxsize = sizeof(struct async_aes_ctx),
- .cra_alignmask = 0,
- .cra_type = &crypto_ablkcipher_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ablk_xts_alg.cra_list),
- .cra_init = ablk_xts_init,
- .cra_exit = ablk_exit,
- .cra_u = {
- .ablkcipher = {
- .min_keysize = 2 * AES_MIN_KEY_SIZE,
- .max_keysize = 2 * AES_MAX_KEY_SIZE,
- .ivsize = AES_BLOCK_SIZE,
- .setkey = ablk_set_key,
- .encrypt = ablk_encrypt,
- .decrypt = ablk_decrypt,
- },
- },
-};
-#endif
-
-#ifdef CONFIG_X86_64
-static int rfc4106_init(struct crypto_tfm *tfm)
+static void aesni_xctr_enc_avx_tfm(struct crypto_aes_ctx *ctx, u8 *out,
+ const u8 *in, unsigned int len, u8 *iv,
+ unsigned int byte_ctr)
{
- struct cryptd_aead *cryptd_tfm;
- struct aesni_rfc4106_gcm_ctx *ctx = (struct aesni_rfc4106_gcm_ctx *)
- PTR_ALIGN((u8 *)crypto_tfm_ctx(tfm), AESNI_ALIGN);
- struct crypto_aead *cryptd_child;
- struct aesni_rfc4106_gcm_ctx *child_ctx;
- cryptd_tfm = cryptd_alloc_aead("__driver-gcm-aes-aesni", 0, 0);
- if (IS_ERR(cryptd_tfm))
- return PTR_ERR(cryptd_tfm);
-
- cryptd_child = cryptd_aead_child(cryptd_tfm);
- child_ctx = aesni_rfc4106_gcm_ctx_get(cryptd_child);
- memcpy(child_ctx, ctx, sizeof(*ctx));
- ctx->cryptd_tfm = cryptd_tfm;
- tfm->crt_aead.reqsize = sizeof(struct aead_request)
- + crypto_aead_reqsize(&cryptd_tfm->base);
- return 0;
+ if (ctx->key_length == AES_KEYSIZE_128)
+ aes_xctr_enc_128_avx_by8(in, iv, (void *)ctx, out, len,
+ byte_ctr);
+ else if (ctx->key_length == AES_KEYSIZE_192)
+ aes_xctr_enc_192_avx_by8(in, iv, (void *)ctx, out, len,
+ byte_ctr);
+ else
+ aes_xctr_enc_256_avx_by8(in, iv, (void *)ctx, out, len,
+ byte_ctr);
}
-static void rfc4106_exit(struct crypto_tfm *tfm)
+static int xctr_crypt(struct skcipher_request *req)
{
- struct aesni_rfc4106_gcm_ctx *ctx =
- (struct aesni_rfc4106_gcm_ctx *)
- PTR_ALIGN((u8 *)crypto_tfm_ctx(tfm), AESNI_ALIGN);
- if (!IS_ERR(ctx->cryptd_tfm))
- cryptd_free_aead(ctx->cryptd_tfm);
- return;
-}
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct crypto_aes_ctx *ctx = aes_ctx(crypto_skcipher_ctx(tfm));
+ u8 keystream[AES_BLOCK_SIZE];
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ unsigned int byte_ctr = 0;
+ int err;
+ __le32 block[AES_BLOCK_SIZE / sizeof(__le32)];
-static void
-rfc4106_set_hash_subkey_done(struct crypto_async_request *req, int err)
-{
- struct aesni_gcm_set_hash_subkey_result *result = req->data;
+ err = skcipher_walk_virt(&walk, req, false);
- if (err == -EINPROGRESS)
- return;
- result->err = err;
- complete(&result->completion);
+ while ((nbytes = walk.nbytes) > 0) {
+ kernel_fpu_begin();
+ if (nbytes & AES_BLOCK_MASK)
+ aesni_xctr_enc_avx_tfm(ctx, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes & AES_BLOCK_MASK,
+ walk.iv, byte_ctr);
+ nbytes &= ~AES_BLOCK_MASK;
+ byte_ctr += walk.nbytes - nbytes;
+
+ if (walk.nbytes == walk.total && nbytes > 0) {
+ memcpy(block, walk.iv, AES_BLOCK_SIZE);
+ block[0] ^= cpu_to_le32(1 + byte_ctr / AES_BLOCK_SIZE);
+ aesni_enc(ctx, keystream, (u8 *)block);
+ crypto_xor_cpy(walk.dst.virt.addr + walk.nbytes -
+ nbytes, walk.src.virt.addr + walk.nbytes
+ - nbytes, keystream, nbytes);
+ byte_ctr += nbytes;
+ nbytes = 0;
+ }
+ kernel_fpu_end();
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+ return err;
}
static int
rfc4106_set_hash_subkey(u8 *hash_subkey, const u8 *key, unsigned int key_len)
{
- struct crypto_ablkcipher *ctr_tfm;
- struct ablkcipher_request *req;
- int ret = -EINVAL;
- struct aesni_hash_subkey_req_data *req_data;
-
- ctr_tfm = crypto_alloc_ablkcipher("ctr(aes)", 0, 0);
- if (IS_ERR(ctr_tfm))
- return PTR_ERR(ctr_tfm);
-
- crypto_ablkcipher_clear_flags(ctr_tfm, ~0);
+ struct crypto_aes_ctx ctx;
+ int ret;
- ret = crypto_ablkcipher_setkey(ctr_tfm, key, key_len);
+ ret = aes_expandkey(&ctx, key, key_len);
if (ret)
- goto out_free_ablkcipher;
-
- ret = -ENOMEM;
- req = ablkcipher_request_alloc(ctr_tfm, GFP_KERNEL);
- if (!req)
- goto out_free_ablkcipher;
-
- req_data = kmalloc(sizeof(*req_data), GFP_KERNEL);
- if (!req_data)
- goto out_free_request;
-
- memset(req_data->iv, 0, sizeof(req_data->iv));
+ return ret;
/* Clear the data in the hash sub key container to zero.*/
/* We want to cipher all zeros to create the hash sub key. */
memset(hash_subkey, 0, RFC4106_HASH_SUBKEY_SIZE);
- init_completion(&req_data->result.completion);
- sg_init_one(&req_data->sg, hash_subkey, RFC4106_HASH_SUBKEY_SIZE);
- ablkcipher_request_set_tfm(req, ctr_tfm);
- ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_SLEEP |
- CRYPTO_TFM_REQ_MAY_BACKLOG,
- rfc4106_set_hash_subkey_done,
- &req_data->result);
-
- ablkcipher_request_set_crypt(req, &req_data->sg,
- &req_data->sg, RFC4106_HASH_SUBKEY_SIZE, req_data->iv);
-
- ret = crypto_ablkcipher_encrypt(req);
- if (ret == -EINPROGRESS || ret == -EBUSY) {
- ret = wait_for_completion_interruptible
- (&req_data->result.completion);
- if (!ret)
- ret = req_data->result.err;
- }
- kfree(req_data);
-out_free_request:
- ablkcipher_request_free(req);
-out_free_ablkcipher:
- crypto_free_ablkcipher(ctr_tfm);
- return ret;
+ aes_encrypt(&ctx, hash_subkey, hash_subkey);
+
+ memzero_explicit(&ctx, sizeof(ctx));
+ return 0;
}
-static int rfc4106_set_key(struct crypto_aead *parent, const u8 *key,
- unsigned int key_len)
+static int common_rfc4106_set_key(struct crypto_aead *aead, const u8 *key,
+ unsigned int key_len)
{
- int ret = 0;
- struct crypto_tfm *tfm = crypto_aead_tfm(parent);
- struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(parent);
- struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm);
- struct aesni_rfc4106_gcm_ctx *child_ctx =
- aesni_rfc4106_gcm_ctx_get(cryptd_child);
- u8 *new_key_mem = NULL;
-
- if (key_len < 4) {
- crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(aead);
+
+ if (key_len < 4)
return -EINVAL;
- }
+
/*Account for 4 byte nonce at the end.*/
key_len -= 4;
- if (key_len != AES_KEYSIZE_128) {
- crypto_tfm_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
- return -EINVAL;
- }
memcpy(ctx->nonce, key + key_len, sizeof(ctx->nonce));
- /*This must be on a 16 byte boundary!*/
- if ((unsigned long)(&(ctx->aes_key_expanded.key_enc[0])) % AESNI_ALIGN)
- return -EINVAL;
- if ((unsigned long)key % AESNI_ALIGN) {
- /*key is not aligned: use an auxuliar aligned pointer*/
- new_key_mem = kmalloc(key_len+AESNI_ALIGN, GFP_KERNEL);
- if (!new_key_mem)
- return -ENOMEM;
+ return aes_set_key_common(crypto_aead_tfm(aead),
+ &ctx->aes_key_expanded, key, key_len) ?:
+ rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len);
+}
- new_key_mem = PTR_ALIGN(new_key_mem, AESNI_ALIGN);
- memcpy(new_key_mem, key, key_len);
- key = new_key_mem;
+/* This is the Integrity Check Value (aka the authentication tag) length and can
+ * be 8, 12 or 16 bytes long. */
+static int common_rfc4106_set_authsize(struct crypto_aead *aead,
+ unsigned int authsize)
+{
+ switch (authsize) {
+ case 8:
+ case 12:
+ case 16:
+ break;
+ default:
+ return -EINVAL;
}
- if (!irq_fpu_usable())
- ret = crypto_aes_expand_key(&(ctx->aes_key_expanded),
- key, key_len);
- else {
- kernel_fpu_begin();
- ret = aesni_set_key(&(ctx->aes_key_expanded), key, key_len);
- kernel_fpu_end();
- }
- /*This must be on a 16 byte boundary!*/
- if ((unsigned long)(&(ctx->hash_subkey[0])) % AESNI_ALIGN) {
- ret = -EINVAL;
- goto exit;
- }
- ret = rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len);
- memcpy(child_ctx, ctx, sizeof(*ctx));
-exit:
- kfree(new_key_mem);
- return ret;
+ return 0;
}
-/* This is the Integrity Check Value (aka the authentication tag length and can
- * be 8, 12 or 16 bytes long. */
-static int rfc4106_set_authsize(struct crypto_aead *parent,
- unsigned int authsize)
+static int generic_gcmaes_set_authsize(struct crypto_aead *tfm,
+ unsigned int authsize)
{
- struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(parent);
- struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm);
-
switch (authsize) {
+ case 4:
case 8:
case 12:
+ case 13:
+ case 14:
+ case 15:
case 16:
break;
default:
return -EINVAL;
}
- crypto_aead_crt(parent)->authsize = authsize;
- crypto_aead_crt(cryptd_child)->authsize = authsize;
+
return 0;
}
-static int rfc4106_encrypt(struct aead_request *req)
+static int gcmaes_crypt_by_sg(bool enc, struct aead_request *req,
+ unsigned int assoclen, u8 *hash_subkey,
+ u8 *iv, void *aes_ctx, u8 *auth_tag,
+ unsigned long auth_tag_len)
{
- int ret;
- struct crypto_aead *tfm = crypto_aead_reqtfm(req);
- struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
+ u8 databuf[sizeof(struct gcm_context_data) + (AESNI_ALIGN - 8)] __aligned(8);
+ struct gcm_context_data *data = PTR_ALIGN((void *)databuf, AESNI_ALIGN);
+ unsigned long left = req->cryptlen;
+ struct scatter_walk assoc_sg_walk;
+ struct skcipher_walk walk;
+ bool do_avx, do_avx2;
+ u8 *assocmem = NULL;
+ u8 *assoc;
+ int err;
+
+ if (!enc)
+ left -= auth_tag_len;
+
+ do_avx = (left >= AVX_GEN2_OPTSIZE);
+ do_avx2 = (left >= AVX_GEN4_OPTSIZE);
- if (!irq_fpu_usable()) {
- struct aead_request *cryptd_req =
- (struct aead_request *) aead_request_ctx(req);
- memcpy(cryptd_req, req, sizeof(*req));
- aead_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
- return crypto_aead_encrypt(cryptd_req);
+ /* Linearize assoc, if not already linear */
+ if (req->src->length >= assoclen && req->src->length) {
+ scatterwalk_start(&assoc_sg_walk, req->src);
+ assoc = scatterwalk_map(&assoc_sg_walk);
} else {
- struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm);
+ gfp_t flags = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
+ GFP_KERNEL : GFP_ATOMIC;
+
+ /* assoc can be any length, so must be on heap */
+ assocmem = kmalloc(assoclen, flags);
+ if (unlikely(!assocmem))
+ return -ENOMEM;
+ assoc = assocmem;
+
+ scatterwalk_map_and_copy(assoc, req->src, 0, assoclen, 0);
+ }
+
+ kernel_fpu_begin();
+ if (static_branch_likely(&gcm_use_avx2) && do_avx2)
+ aesni_gcm_init_avx_gen4(aes_ctx, data, iv, hash_subkey, assoc,
+ assoclen);
+ else if (static_branch_likely(&gcm_use_avx) && do_avx)
+ aesni_gcm_init_avx_gen2(aes_ctx, data, iv, hash_subkey, assoc,
+ assoclen);
+ else
+ aesni_gcm_init(aes_ctx, data, iv, hash_subkey, assoc, assoclen);
+ kernel_fpu_end();
+
+ if (!assocmem)
+ scatterwalk_unmap(assoc);
+ else
+ kfree(assocmem);
+
+ err = enc ? skcipher_walk_aead_encrypt(&walk, req, false)
+ : skcipher_walk_aead_decrypt(&walk, req, false);
+
+ while (walk.nbytes > 0) {
kernel_fpu_begin();
- ret = cryptd_child->base.crt_aead.encrypt(req);
+ if (static_branch_likely(&gcm_use_avx2) && do_avx2) {
+ if (enc)
+ aesni_gcm_enc_update_avx_gen4(aes_ctx, data,
+ walk.dst.virt.addr,
+ walk.src.virt.addr,
+ walk.nbytes);
+ else
+ aesni_gcm_dec_update_avx_gen4(aes_ctx, data,
+ walk.dst.virt.addr,
+ walk.src.virt.addr,
+ walk.nbytes);
+ } else if (static_branch_likely(&gcm_use_avx) && do_avx) {
+ if (enc)
+ aesni_gcm_enc_update_avx_gen2(aes_ctx, data,
+ walk.dst.virt.addr,
+ walk.src.virt.addr,
+ walk.nbytes);
+ else
+ aesni_gcm_dec_update_avx_gen2(aes_ctx, data,
+ walk.dst.virt.addr,
+ walk.src.virt.addr,
+ walk.nbytes);
+ } else if (enc) {
+ aesni_gcm_enc_update(aes_ctx, data, walk.dst.virt.addr,
+ walk.src.virt.addr, walk.nbytes);
+ } else {
+ aesni_gcm_dec_update(aes_ctx, data, walk.dst.virt.addr,
+ walk.src.virt.addr, walk.nbytes);
+ }
kernel_fpu_end();
- return ret;
+
+ err = skcipher_walk_done(&walk, 0);
}
+
+ if (err)
+ return err;
+
+ kernel_fpu_begin();
+ if (static_branch_likely(&gcm_use_avx2) && do_avx2)
+ aesni_gcm_finalize_avx_gen4(aes_ctx, data, auth_tag,
+ auth_tag_len);
+ else if (static_branch_likely(&gcm_use_avx) && do_avx)
+ aesni_gcm_finalize_avx_gen2(aes_ctx, data, auth_tag,
+ auth_tag_len);
+ else
+ aesni_gcm_finalize(aes_ctx, data, auth_tag, auth_tag_len);
+ kernel_fpu_end();
+
+ return 0;
}
-static int rfc4106_decrypt(struct aead_request *req)
+static int gcmaes_encrypt(struct aead_request *req, unsigned int assoclen,
+ u8 *hash_subkey, u8 *iv, void *aes_ctx)
{
- int ret;
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
- struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
+ unsigned long auth_tag_len = crypto_aead_authsize(tfm);
+ u8 auth_tag[16];
+ int err;
- if (!irq_fpu_usable()) {
- struct aead_request *cryptd_req =
- (struct aead_request *) aead_request_ctx(req);
- memcpy(cryptd_req, req, sizeof(*req));
- aead_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
- return crypto_aead_decrypt(cryptd_req);
- } else {
- struct crypto_aead *cryptd_child = cryptd_aead_child(ctx->cryptd_tfm);
- kernel_fpu_begin();
- ret = cryptd_child->base.crt_aead.decrypt(req);
- kernel_fpu_end();
- return ret;
- }
+ err = gcmaes_crypt_by_sg(true, req, assoclen, hash_subkey, iv, aes_ctx,
+ auth_tag, auth_tag_len);
+ if (err)
+ return err;
+
+ scatterwalk_map_and_copy(auth_tag, req->dst,
+ req->assoclen + req->cryptlen,
+ auth_tag_len, 1);
+ return 0;
}
-static struct crypto_alg rfc4106_alg = {
- .cra_name = "rfc4106(gcm(aes))",
- .cra_driver_name = "rfc4106-gcm-aesni",
- .cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD | CRYPTO_ALG_ASYNC,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct aesni_rfc4106_gcm_ctx) + AESNI_ALIGN,
- .cra_alignmask = 0,
- .cra_type = &crypto_nivaead_type,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(rfc4106_alg.cra_list),
- .cra_init = rfc4106_init,
- .cra_exit = rfc4106_exit,
- .cra_u = {
- .aead = {
- .setkey = rfc4106_set_key,
- .setauthsize = rfc4106_set_authsize,
- .encrypt = rfc4106_encrypt,
- .decrypt = rfc4106_decrypt,
- .geniv = "seqiv",
- .ivsize = 8,
- .maxauthsize = 16,
- },
- },
-};
+static int gcmaes_decrypt(struct aead_request *req, unsigned int assoclen,
+ u8 *hash_subkey, u8 *iv, void *aes_ctx)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ unsigned long auth_tag_len = crypto_aead_authsize(tfm);
+ u8 auth_tag_msg[16];
+ u8 auth_tag[16];
+ int err;
+
+ err = gcmaes_crypt_by_sg(false, req, assoclen, hash_subkey, iv, aes_ctx,
+ auth_tag, auth_tag_len);
+ if (err)
+ return err;
+
+ /* Copy out original auth_tag */
+ scatterwalk_map_and_copy(auth_tag_msg, req->src,
+ req->assoclen + req->cryptlen - auth_tag_len,
+ auth_tag_len, 0);
+
+ /* Compare generated tag with passed in tag. */
+ if (crypto_memneq(auth_tag_msg, auth_tag, auth_tag_len)) {
+ memzero_explicit(auth_tag, sizeof(auth_tag));
+ return -EBADMSG;
+ }
+ return 0;
+}
-static int __driver_rfc4106_encrypt(struct aead_request *req)
+static int helper_rfc4106_encrypt(struct aead_request *req)
{
- u8 one_entry_in_sg = 0;
- u8 *src, *dst, *assoc;
- __be32 counter = cpu_to_be32(1);
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
void *aes_ctx = &(ctx->aes_key_expanded);
- unsigned long auth_tag_len = crypto_aead_authsize(tfm);
- u8 iv_tab[16+AESNI_ALIGN];
- u8* iv = (u8 *) PTR_ALIGN((u8 *)iv_tab, AESNI_ALIGN);
- struct scatter_walk src_sg_walk;
- struct scatter_walk assoc_sg_walk;
- struct scatter_walk dst_sg_walk;
+ u8 ivbuf[16 + (AESNI_ALIGN - 8)] __aligned(8);
+ u8 *iv = PTR_ALIGN(&ivbuf[0], AESNI_ALIGN);
unsigned int i;
+ __be32 counter = cpu_to_be32(1);
/* Assuming we are supporting rfc4106 64-bit extended */
/* sequence numbers We need to have the AAD length equal */
- /* to 8 or 12 bytes */
- if (unlikely(req->assoclen != 8 && req->assoclen != 12))
+ /* to 16 or 20 bytes */
+ if (unlikely(req->assoclen != 16 && req->assoclen != 20))
return -EINVAL;
+
/* IV below built */
for (i = 0; i < 4; i++)
*(iv+i) = ctx->nonce[i];
@@ -1098,81 +847,27 @@ static int __driver_rfc4106_encrypt(struct aead_request *req)
*(iv+4+i) = req->iv[i];
*((__be32 *)(iv+12)) = counter;
- if ((sg_is_last(req->src)) && (sg_is_last(req->assoc))) {
- one_entry_in_sg = 1;
- scatterwalk_start(&src_sg_walk, req->src);
- scatterwalk_start(&assoc_sg_walk, req->assoc);
- src = scatterwalk_map(&src_sg_walk, 0);
- assoc = scatterwalk_map(&assoc_sg_walk, 0);
- dst = src;
- if (unlikely(req->src != req->dst)) {
- scatterwalk_start(&dst_sg_walk, req->dst);
- dst = scatterwalk_map(&dst_sg_walk, 0);
- }
-
- } else {
- /* Allocate memory for src, dst, assoc */
- src = kmalloc(req->cryptlen + auth_tag_len + req->assoclen,
- GFP_ATOMIC);
- if (unlikely(!src))
- return -ENOMEM;
- assoc = (src + req->cryptlen + auth_tag_len);
- scatterwalk_map_and_copy(src, req->src, 0, req->cryptlen, 0);
- scatterwalk_map_and_copy(assoc, req->assoc, 0,
- req->assoclen, 0);
- dst = src;
- }
-
- aesni_gcm_enc(aes_ctx, dst, src, (unsigned long)req->cryptlen, iv,
- ctx->hash_subkey, assoc, (unsigned long)req->assoclen, dst
- + ((unsigned long)req->cryptlen), auth_tag_len);
-
- /* The authTag (aka the Integrity Check Value) needs to be written
- * back to the packet. */
- if (one_entry_in_sg) {
- if (unlikely(req->src != req->dst)) {
- scatterwalk_unmap(dst, 0);
- scatterwalk_done(&dst_sg_walk, 0, 0);
- }
- scatterwalk_unmap(src, 0);
- scatterwalk_unmap(assoc, 0);
- scatterwalk_done(&src_sg_walk, 0, 0);
- scatterwalk_done(&assoc_sg_walk, 0, 0);
- } else {
- scatterwalk_map_and_copy(dst, req->dst, 0,
- req->cryptlen + auth_tag_len, 1);
- kfree(src);
- }
- return 0;
+ return gcmaes_encrypt(req, req->assoclen - 8, ctx->hash_subkey, iv,
+ aes_ctx);
}
-static int __driver_rfc4106_decrypt(struct aead_request *req)
+static int helper_rfc4106_decrypt(struct aead_request *req)
{
- u8 one_entry_in_sg = 0;
- u8 *src, *dst, *assoc;
- unsigned long tempCipherLen = 0;
__be32 counter = cpu_to_be32(1);
- int retval = 0;
struct crypto_aead *tfm = crypto_aead_reqtfm(req);
struct aesni_rfc4106_gcm_ctx *ctx = aesni_rfc4106_gcm_ctx_get(tfm);
void *aes_ctx = &(ctx->aes_key_expanded);
- unsigned long auth_tag_len = crypto_aead_authsize(tfm);
- u8 iv_and_authTag[32+AESNI_ALIGN];
- u8 *iv = (u8 *) PTR_ALIGN((u8 *)iv_and_authTag, AESNI_ALIGN);
- u8 *authTag = iv + 16;
- struct scatter_walk src_sg_walk;
- struct scatter_walk assoc_sg_walk;
- struct scatter_walk dst_sg_walk;
+ u8 ivbuf[16 + (AESNI_ALIGN - 8)] __aligned(8);
+ u8 *iv = PTR_ALIGN(&ivbuf[0], AESNI_ALIGN);
unsigned int i;
- if (unlikely((req->cryptlen < auth_tag_len) ||
- (req->assoclen != 8 && req->assoclen != 12)))
+ if (unlikely(req->assoclen != 16 && req->assoclen != 20))
return -EINVAL;
+
/* Assuming we are supporting rfc4106 64-bit extended */
/* sequence numbers We need to have the AAD length */
- /* equal to 8 or 12 bytes */
+ /* equal to 16 or 20 bytes */
- tempCipherLen = (unsigned long)(req->cryptlen - auth_tag_len);
/* IV below built */
for (i = 0; i < 4; i++)
*(iv+i) = ctx->nonce[i];
@@ -1180,194 +875,445 @@ static int __driver_rfc4106_decrypt(struct aead_request *req)
*(iv+4+i) = req->iv[i];
*((__be32 *)(iv+12)) = counter;
- if ((sg_is_last(req->src)) && (sg_is_last(req->assoc))) {
- one_entry_in_sg = 1;
- scatterwalk_start(&src_sg_walk, req->src);
- scatterwalk_start(&assoc_sg_walk, req->assoc);
- src = scatterwalk_map(&src_sg_walk, 0);
- assoc = scatterwalk_map(&assoc_sg_walk, 0);
- dst = src;
- if (unlikely(req->src != req->dst)) {
- scatterwalk_start(&dst_sg_walk, req->dst);
- dst = scatterwalk_map(&dst_sg_walk, 0);
- }
+ return gcmaes_decrypt(req, req->assoclen - 8, ctx->hash_subkey, iv,
+ aes_ctx);
+}
+#endif
+
+static int xts_aesni_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int err;
+
+ err = xts_verify_key(tfm, key, keylen);
+ if (err)
+ return err;
+
+ keylen /= 2;
+
+ /* first half of xts-key is for crypt */
+ err = aes_set_key_common(crypto_skcipher_tfm(tfm), ctx->raw_crypt_ctx,
+ key, keylen);
+ if (err)
+ return err;
+
+ /* second half of xts-key is for tweak */
+ return aes_set_key_common(crypto_skcipher_tfm(tfm), ctx->raw_tweak_ctx,
+ key + keylen, keylen);
+}
+
+static int xts_crypt(struct skcipher_request *req, bool encrypt)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aesni_xts_ctx *ctx = crypto_skcipher_ctx(tfm);
+ int tail = req->cryptlen % AES_BLOCK_SIZE;
+ struct skcipher_request subreq;
+ struct skcipher_walk walk;
+ int err;
+ if (req->cryptlen < AES_BLOCK_SIZE)
+ return -EINVAL;
+
+ err = skcipher_walk_virt(&walk, req, false);
+ if (!walk.nbytes)
+ return err;
+
+ if (unlikely(tail > 0 && walk.nbytes < walk.total)) {
+ int blocks = DIV_ROUND_UP(req->cryptlen, AES_BLOCK_SIZE) - 2;
+
+ skcipher_walk_abort(&walk);
+
+ skcipher_request_set_tfm(&subreq, tfm);
+ skcipher_request_set_callback(&subreq,
+ skcipher_request_flags(req),
+ NULL, NULL);
+ skcipher_request_set_crypt(&subreq, req->src, req->dst,
+ blocks * AES_BLOCK_SIZE, req->iv);
+ req = &subreq;
+
+ err = skcipher_walk_virt(&walk, req, false);
+ if (!walk.nbytes)
+ return err;
} else {
- /* Allocate memory for src, dst, assoc */
- src = kmalloc(req->cryptlen + req->assoclen, GFP_ATOMIC);
- if (!src)
- return -ENOMEM;
- assoc = (src + req->cryptlen + auth_tag_len);
- scatterwalk_map_and_copy(src, req->src, 0, req->cryptlen, 0);
- scatterwalk_map_and_copy(assoc, req->assoc, 0,
- req->assoclen, 0);
- dst = src;
+ tail = 0;
}
- aesni_gcm_dec(aes_ctx, dst, src, tempCipherLen, iv,
- ctx->hash_subkey, assoc, (unsigned long)req->assoclen,
- authTag, auth_tag_len);
+ kernel_fpu_begin();
- /* Compare generated tag with passed in tag. */
- retval = memcmp(src + tempCipherLen, authTag, auth_tag_len) ?
- -EBADMSG : 0;
+ /* calculate first value of T */
+ aesni_enc(aes_ctx(ctx->raw_tweak_ctx), walk.iv, walk.iv);
- if (one_entry_in_sg) {
- if (unlikely(req->src != req->dst)) {
- scatterwalk_unmap(dst, 0);
- scatterwalk_done(&dst_sg_walk, 0, 0);
- }
- scatterwalk_unmap(src, 0);
- scatterwalk_unmap(assoc, 0);
- scatterwalk_done(&src_sg_walk, 0, 0);
- scatterwalk_done(&assoc_sg_walk, 0, 0);
- } else {
- scatterwalk_map_and_copy(dst, req->dst, 0, req->cryptlen, 1);
- kfree(src);
+ while (walk.nbytes > 0) {
+ int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes &= ~(AES_BLOCK_SIZE - 1);
+
+ if (encrypt)
+ aesni_xts_encrypt(aes_ctx(ctx->raw_crypt_ctx),
+ walk.dst.virt.addr, walk.src.virt.addr,
+ nbytes, walk.iv);
+ else
+ aesni_xts_decrypt(aes_ctx(ctx->raw_crypt_ctx),
+ walk.dst.virt.addr, walk.src.virt.addr,
+ nbytes, walk.iv);
+ kernel_fpu_end();
+
+ err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
+
+ if (walk.nbytes > 0)
+ kernel_fpu_begin();
+ }
+
+ if (unlikely(tail > 0 && !err)) {
+ struct scatterlist sg_src[2], sg_dst[2];
+ struct scatterlist *src, *dst;
+
+ dst = src = scatterwalk_ffwd(sg_src, req->src, req->cryptlen);
+ if (req->dst != req->src)
+ dst = scatterwalk_ffwd(sg_dst, req->dst, req->cryptlen);
+
+ skcipher_request_set_crypt(req, src, dst, AES_BLOCK_SIZE + tail,
+ req->iv);
+
+ err = skcipher_walk_virt(&walk, &subreq, false);
+ if (err)
+ return err;
+
+ kernel_fpu_begin();
+ if (encrypt)
+ aesni_xts_encrypt(aes_ctx(ctx->raw_crypt_ctx),
+ walk.dst.virt.addr, walk.src.virt.addr,
+ walk.nbytes, walk.iv);
+ else
+ aesni_xts_decrypt(aes_ctx(ctx->raw_crypt_ctx),
+ walk.dst.virt.addr, walk.src.virt.addr,
+ walk.nbytes, walk.iv);
+ kernel_fpu_end();
+
+ err = skcipher_walk_done(&walk, 0);
}
- return retval;
+ return err;
+}
+
+static int xts_encrypt(struct skcipher_request *req)
+{
+ return xts_crypt(req, true);
}
-static struct crypto_alg __rfc4106_alg = {
- .cra_name = "__gcm-aes-aesni",
- .cra_driver_name = "__driver-gcm-aes-aesni",
- .cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_AEAD,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct aesni_rfc4106_gcm_ctx) + AESNI_ALIGN,
- .cra_alignmask = 0,
- .cra_type = &crypto_aead_type,
+static int xts_decrypt(struct skcipher_request *req)
+{
+ return xts_crypt(req, false);
+}
+
+static struct crypto_alg aesni_cipher_alg = {
+ .cra_name = "aes",
+ .cra_driver_name = "aes-aesni",
+ .cra_priority = 300,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = CRYPTO_AES_CTX_SIZE,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(__rfc4106_alg.cra_list),
- .cra_u = {
- .aead = {
- .encrypt = __driver_rfc4106_encrypt,
- .decrypt = __driver_rfc4106_decrypt,
+ .cra_u = {
+ .cipher = {
+ .cia_min_keysize = AES_MIN_KEY_SIZE,
+ .cia_max_keysize = AES_MAX_KEY_SIZE,
+ .cia_setkey = aes_set_key,
+ .cia_encrypt = aesni_encrypt,
+ .cia_decrypt = aesni_decrypt
+ }
+ }
+};
+
+static struct skcipher_alg aesni_skciphers[] = {
+ {
+ .base = {
+ .cra_name = "__ecb(aes)",
+ .cra_driver_name = "__ecb-aes-aesni",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = CRYPTO_AES_CTX_SIZE,
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .setkey = aesni_skcipher_setkey,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base = {
+ .cra_name = "__cbc(aes)",
+ .cra_driver_name = "__cbc-aes-aesni",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = CRYPTO_AES_CTX_SIZE,
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .setkey = aesni_skcipher_setkey,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ }, {
+ .base = {
+ .cra_name = "__cts(cbc(aes))",
+ .cra_driver_name = "__cts-cbc-aes-aesni",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = CRYPTO_AES_CTX_SIZE,
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .walksize = 2 * AES_BLOCK_SIZE,
+ .setkey = aesni_skcipher_setkey,
+ .encrypt = cts_cbc_encrypt,
+ .decrypt = cts_cbc_decrypt,
+#ifdef CONFIG_X86_64
+ }, {
+ .base = {
+ .cra_name = "__ctr(aes)",
+ .cra_driver_name = "__ctr-aes-aesni",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = 1,
+ .cra_ctxsize = CRYPTO_AES_CTX_SIZE,
+ .cra_module = THIS_MODULE,
},
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .chunksize = AES_BLOCK_SIZE,
+ .setkey = aesni_skcipher_setkey,
+ .encrypt = ctr_crypt,
+ .decrypt = ctr_crypt,
+#endif
+ }, {
+ .base = {
+ .cra_name = "__xts(aes)",
+ .cra_driver_name = "__xts-aes-aesni",
+ .cra_priority = 401,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = AES_BLOCK_SIZE,
+ .cra_ctxsize = XTS_AES_CTX_SIZE,
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = 2 * AES_MIN_KEY_SIZE,
+ .max_keysize = 2 * AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .walksize = 2 * AES_BLOCK_SIZE,
+ .setkey = xts_aesni_setkey,
+ .encrypt = xts_encrypt,
+ .decrypt = xts_decrypt,
+ }
+};
+
+static
+struct simd_skcipher_alg *aesni_simd_skciphers[ARRAY_SIZE(aesni_skciphers)];
+
+#ifdef CONFIG_X86_64
+/*
+ * XCTR does not have a non-AVX implementation, so it must be enabled
+ * conditionally.
+ */
+static struct skcipher_alg aesni_xctr = {
+ .base = {
+ .cra_name = "__xctr(aes)",
+ .cra_driver_name = "__xctr-aes-aesni",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = 1,
+ .cra_ctxsize = CRYPTO_AES_CTX_SIZE,
+ .cra_module = THIS_MODULE,
},
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .chunksize = AES_BLOCK_SIZE,
+ .setkey = aesni_skcipher_setkey,
+ .encrypt = xctr_crypt,
+ .decrypt = xctr_crypt,
};
+
+static struct simd_skcipher_alg *aesni_simd_xctr;
+#endif /* CONFIG_X86_64 */
+
+#ifdef CONFIG_X86_64
+static int generic_gcmaes_set_key(struct crypto_aead *aead, const u8 *key,
+ unsigned int key_len)
+{
+ struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(aead);
+
+ return aes_set_key_common(crypto_aead_tfm(aead),
+ &ctx->aes_key_expanded, key, key_len) ?:
+ rfc4106_set_hash_subkey(ctx->hash_subkey, key, key_len);
+}
+
+static int generic_gcmaes_encrypt(struct aead_request *req)
+{
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(tfm);
+ void *aes_ctx = &(ctx->aes_key_expanded);
+ u8 ivbuf[16 + (AESNI_ALIGN - 8)] __aligned(8);
+ u8 *iv = PTR_ALIGN(&ivbuf[0], AESNI_ALIGN);
+ __be32 counter = cpu_to_be32(1);
+
+ memcpy(iv, req->iv, 12);
+ *((__be32 *)(iv+12)) = counter;
+
+ return gcmaes_encrypt(req, req->assoclen, ctx->hash_subkey, iv,
+ aes_ctx);
+}
+
+static int generic_gcmaes_decrypt(struct aead_request *req)
+{
+ __be32 counter = cpu_to_be32(1);
+ struct crypto_aead *tfm = crypto_aead_reqtfm(req);
+ struct generic_gcmaes_ctx *ctx = generic_gcmaes_ctx_get(tfm);
+ void *aes_ctx = &(ctx->aes_key_expanded);
+ u8 ivbuf[16 + (AESNI_ALIGN - 8)] __aligned(8);
+ u8 *iv = PTR_ALIGN(&ivbuf[0], AESNI_ALIGN);
+
+ memcpy(iv, req->iv, 12);
+ *((__be32 *)(iv+12)) = counter;
+
+ return gcmaes_decrypt(req, req->assoclen, ctx->hash_subkey, iv,
+ aes_ctx);
+}
+
+static struct aead_alg aesni_aeads[] = { {
+ .setkey = common_rfc4106_set_key,
+ .setauthsize = common_rfc4106_set_authsize,
+ .encrypt = helper_rfc4106_encrypt,
+ .decrypt = helper_rfc4106_decrypt,
+ .ivsize = GCM_RFC4106_IV_SIZE,
+ .maxauthsize = 16,
+ .base = {
+ .cra_name = "__rfc4106(gcm(aes))",
+ .cra_driver_name = "__rfc4106-gcm-aesni",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct aesni_rfc4106_gcm_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ },
+}, {
+ .setkey = generic_gcmaes_set_key,
+ .setauthsize = generic_gcmaes_set_authsize,
+ .encrypt = generic_gcmaes_encrypt,
+ .decrypt = generic_gcmaes_decrypt,
+ .ivsize = GCM_AES_IV_SIZE,
+ .maxauthsize = 16,
+ .base = {
+ .cra_name = "__gcm(aes)",
+ .cra_driver_name = "__generic-gcm-aesni",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct generic_gcmaes_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ },
+} };
+#else
+static struct aead_alg aesni_aeads[0];
#endif
+static struct simd_aead_alg *aesni_simd_aeads[ARRAY_SIZE(aesni_aeads)];
+
+static const struct x86_cpu_id aesni_cpu_id[] = {
+ X86_MATCH_FEATURE(X86_FEATURE_AES, NULL),
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, aesni_cpu_id);
+
static int __init aesni_init(void)
{
int err;
- if (!cpu_has_aes) {
- printk(KERN_INFO "Intel AES-NI instructions are not detected.\n");
+ if (!x86_match_cpu(aesni_cpu_id))
return -ENODEV;
+#ifdef CONFIG_X86_64
+ if (boot_cpu_has(X86_FEATURE_AVX2)) {
+ pr_info("AVX2 version of gcm_enc/dec engaged.\n");
+ static_branch_enable(&gcm_use_avx);
+ static_branch_enable(&gcm_use_avx2);
+ } else
+ if (boot_cpu_has(X86_FEATURE_AVX)) {
+ pr_info("AVX version of gcm_enc/dec engaged.\n");
+ static_branch_enable(&gcm_use_avx);
+ } else {
+ pr_info("SSE version of gcm_enc/dec engaged.\n");
+ }
+ if (boot_cpu_has(X86_FEATURE_AVX)) {
+ /* optimize performance of ctr mode encryption transform */
+ static_call_update(aesni_ctr_enc_tfm, aesni_ctr_enc_avx_tfm);
+ pr_info("AES CTR mode by8 optimization enabled\n");
}
+#endif /* CONFIG_X86_64 */
+
+ err = crypto_register_alg(&aesni_cipher_alg);
+ if (err)
+ return err;
+
+ err = simd_register_skciphers_compat(aesni_skciphers,
+ ARRAY_SIZE(aesni_skciphers),
+ aesni_simd_skciphers);
+ if (err)
+ goto unregister_cipher;
+
+ err = simd_register_aeads_compat(aesni_aeads, ARRAY_SIZE(aesni_aeads),
+ aesni_simd_aeads);
+ if (err)
+ goto unregister_skciphers;
- if ((err = crypto_register_alg(&aesni_alg)))
- goto aes_err;
- if ((err = crypto_register_alg(&__aesni_alg)))
- goto __aes_err;
- if ((err = crypto_register_alg(&blk_ecb_alg)))
- goto blk_ecb_err;
- if ((err = crypto_register_alg(&blk_cbc_alg)))
- goto blk_cbc_err;
- if ((err = crypto_register_alg(&ablk_ecb_alg)))
- goto ablk_ecb_err;
- if ((err = crypto_register_alg(&ablk_cbc_alg)))
- goto ablk_cbc_err;
#ifdef CONFIG_X86_64
- if ((err = crypto_register_alg(&blk_ctr_alg)))
- goto blk_ctr_err;
- if ((err = crypto_register_alg(&ablk_ctr_alg)))
- goto ablk_ctr_err;
- if ((err = crypto_register_alg(&__rfc4106_alg)))
- goto __aead_gcm_err;
- if ((err = crypto_register_alg(&rfc4106_alg)))
- goto aead_gcm_err;
-#ifdef HAS_CTR
- if ((err = crypto_register_alg(&ablk_rfc3686_ctr_alg)))
- goto ablk_rfc3686_ctr_err;
-#endif
-#endif
-#ifdef HAS_LRW
- if ((err = crypto_register_alg(&ablk_lrw_alg)))
- goto ablk_lrw_err;
-#endif
-#ifdef HAS_PCBC
- if ((err = crypto_register_alg(&ablk_pcbc_alg)))
- goto ablk_pcbc_err;
-#endif
-#ifdef HAS_XTS
- if ((err = crypto_register_alg(&ablk_xts_alg)))
- goto ablk_xts_err;
-#endif
- return err;
+ if (boot_cpu_has(X86_FEATURE_AVX))
+ err = simd_register_skciphers_compat(&aesni_xctr, 1,
+ &aesni_simd_xctr);
+ if (err)
+ goto unregister_aeads;
+#endif /* CONFIG_X86_64 */
+
+ return 0;
-#ifdef HAS_XTS
-ablk_xts_err:
-#endif
-#ifdef HAS_PCBC
- crypto_unregister_alg(&ablk_pcbc_alg);
-ablk_pcbc_err:
-#endif
-#ifdef HAS_LRW
- crypto_unregister_alg(&ablk_lrw_alg);
-ablk_lrw_err:
-#endif
#ifdef CONFIG_X86_64
-#ifdef HAS_CTR
- crypto_unregister_alg(&ablk_rfc3686_ctr_alg);
-ablk_rfc3686_ctr_err:
-#endif
- crypto_unregister_alg(&rfc4106_alg);
-aead_gcm_err:
- crypto_unregister_alg(&__rfc4106_alg);
-__aead_gcm_err:
- crypto_unregister_alg(&ablk_ctr_alg);
-ablk_ctr_err:
- crypto_unregister_alg(&blk_ctr_alg);
-blk_ctr_err:
-#endif
- crypto_unregister_alg(&ablk_cbc_alg);
-ablk_cbc_err:
- crypto_unregister_alg(&ablk_ecb_alg);
-ablk_ecb_err:
- crypto_unregister_alg(&blk_cbc_alg);
-blk_cbc_err:
- crypto_unregister_alg(&blk_ecb_alg);
-blk_ecb_err:
- crypto_unregister_alg(&__aesni_alg);
-__aes_err:
- crypto_unregister_alg(&aesni_alg);
-aes_err:
+unregister_aeads:
+ simd_unregister_aeads(aesni_aeads, ARRAY_SIZE(aesni_aeads),
+ aesni_simd_aeads);
+#endif /* CONFIG_X86_64 */
+
+unregister_skciphers:
+ simd_unregister_skciphers(aesni_skciphers, ARRAY_SIZE(aesni_skciphers),
+ aesni_simd_skciphers);
+unregister_cipher:
+ crypto_unregister_alg(&aesni_cipher_alg);
return err;
}
static void __exit aesni_exit(void)
{
-#ifdef HAS_XTS
- crypto_unregister_alg(&ablk_xts_alg);
-#endif
-#ifdef HAS_PCBC
- crypto_unregister_alg(&ablk_pcbc_alg);
-#endif
-#ifdef HAS_LRW
- crypto_unregister_alg(&ablk_lrw_alg);
-#endif
+ simd_unregister_aeads(aesni_aeads, ARRAY_SIZE(aesni_aeads),
+ aesni_simd_aeads);
+ simd_unregister_skciphers(aesni_skciphers, ARRAY_SIZE(aesni_skciphers),
+ aesni_simd_skciphers);
+ crypto_unregister_alg(&aesni_cipher_alg);
#ifdef CONFIG_X86_64
-#ifdef HAS_CTR
- crypto_unregister_alg(&ablk_rfc3686_ctr_alg);
-#endif
- crypto_unregister_alg(&rfc4106_alg);
- crypto_unregister_alg(&__rfc4106_alg);
- crypto_unregister_alg(&ablk_ctr_alg);
- crypto_unregister_alg(&blk_ctr_alg);
-#endif
- crypto_unregister_alg(&ablk_cbc_alg);
- crypto_unregister_alg(&ablk_ecb_alg);
- crypto_unregister_alg(&blk_cbc_alg);
- crypto_unregister_alg(&blk_ecb_alg);
- crypto_unregister_alg(&__aesni_alg);
- crypto_unregister_alg(&aesni_alg);
+ if (boot_cpu_has(X86_FEATURE_AVX))
+ simd_unregister_skciphers(&aesni_xctr, 1, &aesni_simd_xctr);
+#endif /* CONFIG_X86_64 */
}
-module_init(aesni_init);
+late_initcall(aesni_init);
module_exit(aesni_exit);
MODULE_DESCRIPTION("Rijndael (AES) Cipher Algorithm, Intel AES-NI instructions optimized");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("aes");
+MODULE_ALIAS_CRYPTO("aes");
diff --git a/arch/x86/crypto/aria-aesni-avx-asm_64.S b/arch/x86/crypto/aria-aesni-avx-asm_64.S
new file mode 100644
index 000000000000..7c1abc513f34
--- /dev/null
+++ b/arch/x86/crypto/aria-aesni-avx-asm_64.S
@@ -0,0 +1,1364 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * ARIA Cipher 16-way parallel algorithm (AVX)
+ *
+ * Copyright (c) 2022 Taehee Yoo <ap420073@gmail.com>
+ *
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+#include <asm/asm-offsets.h>
+#include <asm/frame.h>
+
+/* register macros */
+#define CTX %rdi
+
+
+#define BV8(a0, a1, a2, a3, a4, a5, a6, a7) \
+ ( (((a0) & 1) << 0) | \
+ (((a1) & 1) << 1) | \
+ (((a2) & 1) << 2) | \
+ (((a3) & 1) << 3) | \
+ (((a4) & 1) << 4) | \
+ (((a5) & 1) << 5) | \
+ (((a6) & 1) << 6) | \
+ (((a7) & 1) << 7) )
+
+#define BM8X8(l0, l1, l2, l3, l4, l5, l6, l7) \
+ ( ((l7) << (0 * 8)) | \
+ ((l6) << (1 * 8)) | \
+ ((l5) << (2 * 8)) | \
+ ((l4) << (3 * 8)) | \
+ ((l3) << (4 * 8)) | \
+ ((l2) << (5 * 8)) | \
+ ((l1) << (6 * 8)) | \
+ ((l0) << (7 * 8)) )
+
+#define inc_le128(x, minus_one, tmp) \
+ vpcmpeqq minus_one, x, tmp; \
+ vpsubq minus_one, x, x; \
+ vpslldq $8, tmp, tmp; \
+ vpsubq tmp, x, x;
+
+#define filter_8bit(x, lo_t, hi_t, mask4bit, tmp0) \
+ vpand x, mask4bit, tmp0; \
+ vpandn x, mask4bit, x; \
+ vpsrld $4, x, x; \
+ \
+ vpshufb tmp0, lo_t, tmp0; \
+ vpshufb x, hi_t, x; \
+ vpxor tmp0, x, x;
+
+#define transpose_4x4(x0, x1, x2, x3, t1, t2) \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x1, x0, x0; \
+ \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x2; \
+ \
+ vpunpckhqdq t1, x0, x1; \
+ vpunpcklqdq t1, x0, x0; \
+ \
+ vpunpckhqdq x2, t2, x3; \
+ vpunpcklqdq x2, t2, x2;
+
+#define byteslice_16x16b(a0, b0, c0, d0, \
+ a1, b1, c1, d1, \
+ a2, b2, c2, d2, \
+ a3, b3, c3, d3, \
+ st0, st1) \
+ vmovdqu d2, st0; \
+ vmovdqu d3, st1; \
+ transpose_4x4(a0, a1, a2, a3, d2, d3); \
+ transpose_4x4(b0, b1, b2, b3, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu a0, st0; \
+ vmovdqu a1, st1; \
+ transpose_4x4(c0, c1, c2, c3, a0, a1); \
+ transpose_4x4(d0, d1, d2, d3, a0, a1); \
+ \
+ vmovdqu .Lshufb_16x16b(%rip), a0; \
+ vmovdqu st1, a1; \
+ vpshufb a0, a2, a2; \
+ vpshufb a0, a3, a3; \
+ vpshufb a0, b0, b0; \
+ vpshufb a0, b1, b1; \
+ vpshufb a0, b2, b2; \
+ vpshufb a0, b3, b3; \
+ vpshufb a0, a1, a1; \
+ vpshufb a0, c0, c0; \
+ vpshufb a0, c1, c1; \
+ vpshufb a0, c2, c2; \
+ vpshufb a0, c3, c3; \
+ vpshufb a0, d0, d0; \
+ vpshufb a0, d1, d1; \
+ vpshufb a0, d2, d2; \
+ vpshufb a0, d3, d3; \
+ vmovdqu d3, st1; \
+ vmovdqu st0, d3; \
+ vpshufb a0, d3, a0; \
+ vmovdqu d2, st0; \
+ \
+ transpose_4x4(a0, b0, c0, d0, d2, d3); \
+ transpose_4x4(a1, b1, c1, d1, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu b0, st0; \
+ vmovdqu b1, st1; \
+ transpose_4x4(a2, b2, c2, d2, b0, b1); \
+ transpose_4x4(a3, b3, c3, d3, b0, b1); \
+ vmovdqu st0, b0; \
+ vmovdqu st1, b1; \
+ /* does not adjust output bytes inside vectors */
+
+#define debyteslice_16x16b(a0, b0, c0, d0, \
+ a1, b1, c1, d1, \
+ a2, b2, c2, d2, \
+ a3, b3, c3, d3, \
+ st0, st1) \
+ vmovdqu d2, st0; \
+ vmovdqu d3, st1; \
+ transpose_4x4(a0, a1, a2, a3, d2, d3); \
+ transpose_4x4(b0, b1, b2, b3, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu a0, st0; \
+ vmovdqu a1, st1; \
+ transpose_4x4(c0, c1, c2, c3, a0, a1); \
+ transpose_4x4(d0, d1, d2, d3, a0, a1); \
+ \
+ vmovdqu .Lshufb_16x16b(%rip), a0; \
+ vmovdqu st1, a1; \
+ vpshufb a0, a2, a2; \
+ vpshufb a0, a3, a3; \
+ vpshufb a0, b0, b0; \
+ vpshufb a0, b1, b1; \
+ vpshufb a0, b2, b2; \
+ vpshufb a0, b3, b3; \
+ vpshufb a0, a1, a1; \
+ vpshufb a0, c0, c0; \
+ vpshufb a0, c1, c1; \
+ vpshufb a0, c2, c2; \
+ vpshufb a0, c3, c3; \
+ vpshufb a0, d0, d0; \
+ vpshufb a0, d1, d1; \
+ vpshufb a0, d2, d2; \
+ vpshufb a0, d3, d3; \
+ vmovdqu d3, st1; \
+ vmovdqu st0, d3; \
+ vpshufb a0, d3, a0; \
+ vmovdqu d2, st0; \
+ \
+ transpose_4x4(c0, d0, a0, b0, d2, d3); \
+ transpose_4x4(c1, d1, a1, b1, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu b0, st0; \
+ vmovdqu b1, st1; \
+ transpose_4x4(c2, d2, a2, b2, b0, b1); \
+ transpose_4x4(c3, d3, a3, b3, b0, b1); \
+ vmovdqu st0, b0; \
+ vmovdqu st1, b1; \
+ /* does not adjust output bytes inside vectors */
+
+/* load blocks to registers and apply pre-whitening */
+#define inpack16_pre(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ rio) \
+ vmovdqu (0 * 16)(rio), x0; \
+ vmovdqu (1 * 16)(rio), x1; \
+ vmovdqu (2 * 16)(rio), x2; \
+ vmovdqu (3 * 16)(rio), x3; \
+ vmovdqu (4 * 16)(rio), x4; \
+ vmovdqu (5 * 16)(rio), x5; \
+ vmovdqu (6 * 16)(rio), x6; \
+ vmovdqu (7 * 16)(rio), x7; \
+ vmovdqu (8 * 16)(rio), y0; \
+ vmovdqu (9 * 16)(rio), y1; \
+ vmovdqu (10 * 16)(rio), y2; \
+ vmovdqu (11 * 16)(rio), y3; \
+ vmovdqu (12 * 16)(rio), y4; \
+ vmovdqu (13 * 16)(rio), y5; \
+ vmovdqu (14 * 16)(rio), y6; \
+ vmovdqu (15 * 16)(rio), y7;
+
+/* byteslice pre-whitened blocks and store to temporary memory */
+#define inpack16_post(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_ab, mem_cd) \
+ byteslice_16x16b(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ (mem_ab), (mem_cd)); \
+ \
+ vmovdqu x0, 0 * 16(mem_ab); \
+ vmovdqu x1, 1 * 16(mem_ab); \
+ vmovdqu x2, 2 * 16(mem_ab); \
+ vmovdqu x3, 3 * 16(mem_ab); \
+ vmovdqu x4, 4 * 16(mem_ab); \
+ vmovdqu x5, 5 * 16(mem_ab); \
+ vmovdqu x6, 6 * 16(mem_ab); \
+ vmovdqu x7, 7 * 16(mem_ab); \
+ vmovdqu y0, 0 * 16(mem_cd); \
+ vmovdqu y1, 1 * 16(mem_cd); \
+ vmovdqu y2, 2 * 16(mem_cd); \
+ vmovdqu y3, 3 * 16(mem_cd); \
+ vmovdqu y4, 4 * 16(mem_cd); \
+ vmovdqu y5, 5 * 16(mem_cd); \
+ vmovdqu y6, 6 * 16(mem_cd); \
+ vmovdqu y7, 7 * 16(mem_cd);
+
+#define write_output(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem) \
+ vmovdqu x0, 0 * 16(mem); \
+ vmovdqu x1, 1 * 16(mem); \
+ vmovdqu x2, 2 * 16(mem); \
+ vmovdqu x3, 3 * 16(mem); \
+ vmovdqu x4, 4 * 16(mem); \
+ vmovdqu x5, 5 * 16(mem); \
+ vmovdqu x6, 6 * 16(mem); \
+ vmovdqu x7, 7 * 16(mem); \
+ vmovdqu y0, 8 * 16(mem); \
+ vmovdqu y1, 9 * 16(mem); \
+ vmovdqu y2, 10 * 16(mem); \
+ vmovdqu y3, 11 * 16(mem); \
+ vmovdqu y4, 12 * 16(mem); \
+ vmovdqu y5, 13 * 16(mem); \
+ vmovdqu y6, 14 * 16(mem); \
+ vmovdqu y7, 15 * 16(mem); \
+
+#define aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, idx) \
+ vmovdqu x0, ((idx + 0) * 16)(mem_tmp); \
+ vmovdqu x1, ((idx + 1) * 16)(mem_tmp); \
+ vmovdqu x2, ((idx + 2) * 16)(mem_tmp); \
+ vmovdqu x3, ((idx + 3) * 16)(mem_tmp); \
+ vmovdqu x4, ((idx + 4) * 16)(mem_tmp); \
+ vmovdqu x5, ((idx + 5) * 16)(mem_tmp); \
+ vmovdqu x6, ((idx + 6) * 16)(mem_tmp); \
+ vmovdqu x7, ((idx + 7) * 16)(mem_tmp);
+
+#define aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, idx) \
+ vmovdqu ((idx + 0) * 16)(mem_tmp), x0; \
+ vmovdqu ((idx + 1) * 16)(mem_tmp), x1; \
+ vmovdqu ((idx + 2) * 16)(mem_tmp), x2; \
+ vmovdqu ((idx + 3) * 16)(mem_tmp), x3; \
+ vmovdqu ((idx + 4) * 16)(mem_tmp), x4; \
+ vmovdqu ((idx + 5) * 16)(mem_tmp), x5; \
+ vmovdqu ((idx + 6) * 16)(mem_tmp), x6; \
+ vmovdqu ((idx + 7) * 16)(mem_tmp), x7;
+
+#define aria_ark_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ t0, t1, t2, rk, \
+ idx, round) \
+ /* AddRoundKey */ \
+ vbroadcastss ((round * 16) + idx + 0)(rk), t0; \
+ vpsrld $24, t0, t2; \
+ vpshufb t1, t2, t2; \
+ vpxor t2, x0, x0; \
+ vpsrld $16, t0, t2; \
+ vpshufb t1, t2, t2; \
+ vpxor t2, x1, x1; \
+ vpsrld $8, t0, t2; \
+ vpshufb t1, t2, t2; \
+ vpxor t2, x2, x2; \
+ vpshufb t1, t0, t2; \
+ vpxor t2, x3, x3; \
+ vbroadcastss ((round * 16) + idx + 4)(rk), t0; \
+ vpsrld $24, t0, t2; \
+ vpshufb t1, t2, t2; \
+ vpxor t2, x4, x4; \
+ vpsrld $16, t0, t2; \
+ vpshufb t1, t2, t2; \
+ vpxor t2, x5, x5; \
+ vpsrld $8, t0, t2; \
+ vpshufb t1, t2, t2; \
+ vpxor t2, x6, x6; \
+ vpshufb t1, t0, t2; \
+ vpxor t2, x7, x7;
+
+#ifdef CONFIG_AS_GFNI
+#define aria_sbox_8way_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ t0, t1, t2, t3, \
+ t4, t5, t6, t7) \
+ vmovdqa .Ltf_s2_bitmatrix(%rip), t0; \
+ vmovdqa .Ltf_inv_bitmatrix(%rip), t1; \
+ vmovdqa .Ltf_id_bitmatrix(%rip), t2; \
+ vmovdqa .Ltf_aff_bitmatrix(%rip), t3; \
+ vmovdqa .Ltf_x2_bitmatrix(%rip), t4; \
+ vgf2p8affineinvqb $(tf_s2_const), t0, x1, x1; \
+ vgf2p8affineinvqb $(tf_s2_const), t0, x5, x5; \
+ vgf2p8affineqb $(tf_inv_const), t1, x2, x2; \
+ vgf2p8affineqb $(tf_inv_const), t1, x6, x6; \
+ vgf2p8affineinvqb $0, t2, x2, x2; \
+ vgf2p8affineinvqb $0, t2, x6, x6; \
+ vgf2p8affineinvqb $(tf_aff_const), t3, x0, x0; \
+ vgf2p8affineinvqb $(tf_aff_const), t3, x4, x4; \
+ vgf2p8affineqb $(tf_x2_const), t4, x3, x3; \
+ vgf2p8affineqb $(tf_x2_const), t4, x7, x7; \
+ vgf2p8affineinvqb $0, t2, x3, x3; \
+ vgf2p8affineinvqb $0, t2, x7, x7
+
+#endif /* CONFIG_AS_GFNI */
+
+#define aria_sbox_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ t0, t1, t2, t3, \
+ t4, t5, t6, t7) \
+ vmovdqa .Linv_shift_row(%rip), t0; \
+ vmovdqa .Lshift_row(%rip), t1; \
+ vbroadcastss .L0f0f0f0f(%rip), t6; \
+ vmovdqa .Ltf_lo__inv_aff__and__s2(%rip), t2; \
+ vmovdqa .Ltf_hi__inv_aff__and__s2(%rip), t3; \
+ vmovdqa .Ltf_lo__x2__and__fwd_aff(%rip), t4; \
+ vmovdqa .Ltf_hi__x2__and__fwd_aff(%rip), t5; \
+ \
+ vaesenclast t7, x0, x0; \
+ vaesenclast t7, x4, x4; \
+ vaesenclast t7, x1, x1; \
+ vaesenclast t7, x5, x5; \
+ vaesdeclast t7, x2, x2; \
+ vaesdeclast t7, x6, x6; \
+ \
+ /* AES inverse shift rows */ \
+ vpshufb t0, x0, x0; \
+ vpshufb t0, x4, x4; \
+ vpshufb t0, x1, x1; \
+ vpshufb t0, x5, x5; \
+ vpshufb t1, x3, x3; \
+ vpshufb t1, x7, x7; \
+ vpshufb t1, x2, x2; \
+ vpshufb t1, x6, x6; \
+ \
+ /* affine transformation for S2 */ \
+ filter_8bit(x1, t2, t3, t6, t0); \
+ /* affine transformation for S2 */ \
+ filter_8bit(x5, t2, t3, t6, t0); \
+ \
+ /* affine transformation for X2 */ \
+ filter_8bit(x3, t4, t5, t6, t0); \
+ /* affine transformation for X2 */ \
+ filter_8bit(x7, t4, t5, t6, t0); \
+ vaesdeclast t7, x3, x3; \
+ vaesdeclast t7, x7, x7;
+
+#define aria_diff_m(x0, x1, x2, x3, \
+ t0, t1, t2, t3) \
+ /* T = rotr32(X, 8); */ \
+ /* X ^= T */ \
+ vpxor x0, x3, t0; \
+ vpxor x1, x0, t1; \
+ vpxor x2, x1, t2; \
+ vpxor x3, x2, t3; \
+ /* X = T ^ rotr(X, 16); */ \
+ vpxor t2, x0, x0; \
+ vpxor x1, t3, t3; \
+ vpxor t0, x2, x2; \
+ vpxor t1, x3, x1; \
+ vmovdqu t3, x3;
+
+#define aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7) \
+ /* t1 ^= t2; */ \
+ vpxor y0, x4, x4; \
+ vpxor y1, x5, x5; \
+ vpxor y2, x6, x6; \
+ vpxor y3, x7, x7; \
+ \
+ /* t2 ^= t3; */ \
+ vpxor y4, y0, y0; \
+ vpxor y5, y1, y1; \
+ vpxor y6, y2, y2; \
+ vpxor y7, y3, y3; \
+ \
+ /* t0 ^= t1; */ \
+ vpxor x4, x0, x0; \
+ vpxor x5, x1, x1; \
+ vpxor x6, x2, x2; \
+ vpxor x7, x3, x3; \
+ \
+ /* t3 ^= t1; */ \
+ vpxor x4, y4, y4; \
+ vpxor x5, y5, y5; \
+ vpxor x6, y6, y6; \
+ vpxor x7, y7, y7; \
+ \
+ /* t2 ^= t0; */ \
+ vpxor x0, y0, y0; \
+ vpxor x1, y1, y1; \
+ vpxor x2, y2, y2; \
+ vpxor x3, y3, y3; \
+ \
+ /* t1 ^= t2; */ \
+ vpxor y0, x4, x4; \
+ vpxor y1, x5, x5; \
+ vpxor y2, x6, x6; \
+ vpxor y3, x7, x7;
+
+#define aria_fe(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round) \
+ vpxor y7, y7, y7; \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 8, round); \
+ \
+ aria_sbox_8way(x2, x3, x0, x1, x6, x7, x4, x5, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 0, round); \
+ \
+ aria_sbox_8way(x2, x3, x0, x1, x6, x7, x4, x5, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8); \
+ aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ /* aria_diff_byte() \
+ * T3 = ABCD -> BADC \
+ * T3 = y4, y5, y6, y7 -> y5, y4, y7, y6 \
+ * T0 = ABCD -> CDAB \
+ * T0 = x0, x1, x2, x3 -> x2, x3, x0, x1 \
+ * T1 = ABCD -> DCBA \
+ * T1 = x4, x5, x6, x7 -> x7, x6, x5, x4 \
+ */ \
+ aria_diff_word(x2, x3, x0, x1, \
+ x7, x6, x5, x4, \
+ y0, y1, y2, y3, \
+ y5, y4, y7, y6); \
+ aria_store_state_8way(x3, x2, x1, x0, \
+ x6, x7, x4, x5, \
+ mem_tmp, 0);
+
+#define aria_fo(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round) \
+ vpxor y7, y7, y7; \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 8, round); \
+ \
+ aria_sbox_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 0, round); \
+ \
+ aria_sbox_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8); \
+ aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ /* aria_diff_byte() \
+ * T1 = ABCD -> BADC \
+ * T1 = x4, x5, x6, x7 -> x5, x4, x7, x6 \
+ * T2 = ABCD -> CDAB \
+ * T2 = y0, y1, y2, y3, -> y2, y3, y0, y1 \
+ * T3 = ABCD -> DCBA \
+ * T3 = y4, y5, y6, y7 -> y7, y6, y5, y4 \
+ */ \
+ aria_diff_word(x0, x1, x2, x3, \
+ x5, x4, x7, x6, \
+ y2, y3, y0, y1, \
+ y7, y6, y5, y4); \
+ aria_store_state_8way(x3, x2, x1, x0, \
+ x6, x7, x4, x5, \
+ mem_tmp, 0);
+
+#define aria_ff(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round, last_round) \
+ vpxor y7, y7, y7; \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 8, round); \
+ \
+ aria_sbox_8way(x2, x3, x0, x1, x6, x7, x4, x5, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 8, last_round); \
+ \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 0, round); \
+ \
+ aria_sbox_8way(x2, x3, x0, x1, x6, x7, x4, x5, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 0, last_round); \
+ \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8);
+
+#ifdef CONFIG_AS_GFNI
+#define aria_fe_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round) \
+ vpxor y7, y7, y7; \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 8, round); \
+ \
+ aria_sbox_8way_gfni(x2, x3, x0, x1, \
+ x6, x7, x4, x5, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 0, round); \
+ \
+ aria_sbox_8way_gfni(x2, x3, x0, x1, \
+ x6, x7, x4, x5, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8); \
+ aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ /* aria_diff_byte() \
+ * T3 = ABCD -> BADC \
+ * T3 = y4, y5, y6, y7 -> y5, y4, y7, y6 \
+ * T0 = ABCD -> CDAB \
+ * T0 = x0, x1, x2, x3 -> x2, x3, x0, x1 \
+ * T1 = ABCD -> DCBA \
+ * T1 = x4, x5, x6, x7 -> x7, x6, x5, x4 \
+ */ \
+ aria_diff_word(x2, x3, x0, x1, \
+ x7, x6, x5, x4, \
+ y0, y1, y2, y3, \
+ y5, y4, y7, y6); \
+ aria_store_state_8way(x3, x2, x1, x0, \
+ x6, x7, x4, x5, \
+ mem_tmp, 0);
+
+#define aria_fo_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round) \
+ vpxor y7, y7, y7; \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 8, round); \
+ \
+ aria_sbox_8way_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 0, round); \
+ \
+ aria_sbox_8way_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8); \
+ aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ /* aria_diff_byte() \
+ * T1 = ABCD -> BADC \
+ * T1 = x4, x5, x6, x7 -> x5, x4, x7, x6 \
+ * T2 = ABCD -> CDAB \
+ * T2 = y0, y1, y2, y3, -> y2, y3, y0, y1 \
+ * T3 = ABCD -> DCBA \
+ * T3 = y4, y5, y6, y7 -> y7, y6, y5, y4 \
+ */ \
+ aria_diff_word(x0, x1, x2, x3, \
+ x5, x4, x7, x6, \
+ y2, y3, y0, y1, \
+ y7, y6, y5, y4); \
+ aria_store_state_8way(x3, x2, x1, x0, \
+ x6, x7, x4, x5, \
+ mem_tmp, 0);
+
+#define aria_ff_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round, last_round) \
+ vpxor y7, y7, y7; \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 8, round); \
+ \
+ aria_sbox_8way_gfni(x2, x3, x0, x1, \
+ x6, x7, x4, x5, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 8, last_round); \
+ \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 0, round); \
+ \
+ aria_sbox_8way_gfni(x2, x3, x0, x1, \
+ x6, x7, x4, x5, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y7, y2, rk, 0, last_round); \
+ \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8);
+
+#endif /* CONFIG_AS_GFNI */
+
+/* NB: section is mergeable, all elements must be aligned 16-byte blocks */
+.section .rodata.cst16, "aM", @progbits, 16
+.align 16
+
+#define SHUFB_BYTES(idx) \
+ 0 + (idx), 4 + (idx), 8 + (idx), 12 + (idx)
+
+.Lshufb_16x16b:
+ .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3);
+/* For isolating SubBytes from AESENCLAST, inverse shift row */
+.Linv_shift_row:
+ .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b
+ .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03
+.Lshift_row:
+ .byte 0x00, 0x05, 0x0a, 0x0f, 0x04, 0x09, 0x0e, 0x03
+ .byte 0x08, 0x0d, 0x02, 0x07, 0x0c, 0x01, 0x06, 0x0b
+/* For CTR-mode IV byteswap */
+.Lbswap128_mask:
+ .byte 0x0f, 0x0e, 0x0d, 0x0c, 0x0b, 0x0a, 0x09, 0x08
+ .byte 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00
+
+/* AES inverse affine and S2 combined:
+ * 1 1 0 0 0 0 0 1 x0 0
+ * 0 1 0 0 1 0 0 0 x1 0
+ * 1 1 0 0 1 1 1 1 x2 0
+ * 0 1 1 0 1 0 0 1 x3 1
+ * 0 1 0 0 1 1 0 0 * x4 + 0
+ * 0 1 0 1 1 0 0 0 x5 0
+ * 0 0 0 0 0 1 0 1 x6 0
+ * 1 1 1 0 0 1 1 1 x7 1
+ */
+.Ltf_lo__inv_aff__and__s2:
+ .octa 0x92172DA81A9FA520B2370D883ABF8500
+.Ltf_hi__inv_aff__and__s2:
+ .octa 0x2B15FFC1AF917B45E6D8320C625CB688
+
+/* X2 and AES forward affine combined:
+ * 1 0 1 1 0 0 0 1 x0 0
+ * 0 1 1 1 1 0 1 1 x1 0
+ * 0 0 0 1 1 0 1 0 x2 1
+ * 0 1 0 0 0 1 0 0 x3 0
+ * 0 0 1 1 1 0 1 1 * x4 + 0
+ * 0 1 0 0 1 0 0 0 x5 0
+ * 1 1 0 1 0 0 1 1 x6 0
+ * 0 1 0 0 1 0 1 0 x7 0
+ */
+.Ltf_lo__x2__and__fwd_aff:
+ .octa 0xEFAE0544FCBD1657B8F95213ABEA4100
+.Ltf_hi__x2__and__fwd_aff:
+ .octa 0x3F893781E95FE1576CDA64D2BA0CB204
+
+#ifdef CONFIG_AS_GFNI
+.section .rodata.cst8, "aM", @progbits, 8
+.align 8
+/* AES affine: */
+#define tf_aff_const BV8(1, 1, 0, 0, 0, 1, 1, 0)
+.Ltf_aff_bitmatrix:
+ .quad BM8X8(BV8(1, 0, 0, 0, 1, 1, 1, 1),
+ BV8(1, 1, 0, 0, 0, 1, 1, 1),
+ BV8(1, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 1, 0, 0, 0, 1),
+ BV8(1, 1, 1, 1, 1, 0, 0, 0),
+ BV8(0, 1, 1, 1, 1, 1, 0, 0),
+ BV8(0, 0, 1, 1, 1, 1, 1, 0),
+ BV8(0, 0, 0, 1, 1, 1, 1, 1))
+ .quad BM8X8(BV8(1, 0, 0, 0, 1, 1, 1, 1),
+ BV8(1, 1, 0, 0, 0, 1, 1, 1),
+ BV8(1, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 1, 0, 0, 0, 1),
+ BV8(1, 1, 1, 1, 1, 0, 0, 0),
+ BV8(0, 1, 1, 1, 1, 1, 0, 0),
+ BV8(0, 0, 1, 1, 1, 1, 1, 0),
+ BV8(0, 0, 0, 1, 1, 1, 1, 1))
+
+/* AES inverse affine: */
+#define tf_inv_const BV8(1, 0, 1, 0, 0, 0, 0, 0)
+.Ltf_inv_bitmatrix:
+ .quad BM8X8(BV8(0, 0, 1, 0, 0, 1, 0, 1),
+ BV8(1, 0, 0, 1, 0, 0, 1, 0),
+ BV8(0, 1, 0, 0, 1, 0, 0, 1),
+ BV8(1, 0, 1, 0, 0, 1, 0, 0),
+ BV8(0, 1, 0, 1, 0, 0, 1, 0),
+ BV8(0, 0, 1, 0, 1, 0, 0, 1),
+ BV8(1, 0, 0, 1, 0, 1, 0, 0),
+ BV8(0, 1, 0, 0, 1, 0, 1, 0))
+ .quad BM8X8(BV8(0, 0, 1, 0, 0, 1, 0, 1),
+ BV8(1, 0, 0, 1, 0, 0, 1, 0),
+ BV8(0, 1, 0, 0, 1, 0, 0, 1),
+ BV8(1, 0, 1, 0, 0, 1, 0, 0),
+ BV8(0, 1, 0, 1, 0, 0, 1, 0),
+ BV8(0, 0, 1, 0, 1, 0, 0, 1),
+ BV8(1, 0, 0, 1, 0, 1, 0, 0),
+ BV8(0, 1, 0, 0, 1, 0, 1, 0))
+
+/* S2: */
+#define tf_s2_const BV8(0, 1, 0, 0, 0, 1, 1, 1)
+.Ltf_s2_bitmatrix:
+ .quad BM8X8(BV8(0, 1, 0, 1, 0, 1, 1, 1),
+ BV8(0, 0, 1, 1, 1, 1, 1, 1),
+ BV8(1, 1, 1, 0, 1, 1, 0, 1),
+ BV8(1, 1, 0, 0, 0, 0, 1, 1),
+ BV8(0, 1, 0, 0, 0, 0, 1, 1),
+ BV8(1, 1, 0, 0, 1, 1, 1, 0),
+ BV8(0, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 1, 0, 1, 1, 0))
+ .quad BM8X8(BV8(0, 1, 0, 1, 0, 1, 1, 1),
+ BV8(0, 0, 1, 1, 1, 1, 1, 1),
+ BV8(1, 1, 1, 0, 1, 1, 0, 1),
+ BV8(1, 1, 0, 0, 0, 0, 1, 1),
+ BV8(0, 1, 0, 0, 0, 0, 1, 1),
+ BV8(1, 1, 0, 0, 1, 1, 1, 0),
+ BV8(0, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 1, 0, 1, 1, 0))
+
+/* X2: */
+#define tf_x2_const BV8(0, 0, 1, 1, 0, 1, 0, 0)
+.Ltf_x2_bitmatrix:
+ .quad BM8X8(BV8(0, 0, 0, 1, 1, 0, 0, 0),
+ BV8(0, 0, 1, 0, 0, 1, 1, 0),
+ BV8(0, 0, 0, 0, 1, 0, 1, 0),
+ BV8(1, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 0, 1, 1, 0, 0),
+ BV8(0, 1, 1, 0, 1, 0, 1, 1),
+ BV8(1, 0, 1, 1, 1, 1, 0, 1),
+ BV8(1, 0, 0, 1, 0, 0, 1, 1))
+ .quad BM8X8(BV8(0, 0, 0, 1, 1, 0, 0, 0),
+ BV8(0, 0, 1, 0, 0, 1, 1, 0),
+ BV8(0, 0, 0, 0, 1, 0, 1, 0),
+ BV8(1, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 0, 1, 1, 0, 0),
+ BV8(0, 1, 1, 0, 1, 0, 1, 1),
+ BV8(1, 0, 1, 1, 1, 1, 0, 1),
+ BV8(1, 0, 0, 1, 0, 0, 1, 1))
+
+/* Identity matrix: */
+.Ltf_id_bitmatrix:
+ .quad BM8X8(BV8(1, 0, 0, 0, 0, 0, 0, 0),
+ BV8(0, 1, 0, 0, 0, 0, 0, 0),
+ BV8(0, 0, 1, 0, 0, 0, 0, 0),
+ BV8(0, 0, 0, 1, 0, 0, 0, 0),
+ BV8(0, 0, 0, 0, 1, 0, 0, 0),
+ BV8(0, 0, 0, 0, 0, 1, 0, 0),
+ BV8(0, 0, 0, 0, 0, 0, 1, 0),
+ BV8(0, 0, 0, 0, 0, 0, 0, 1))
+ .quad BM8X8(BV8(1, 0, 0, 0, 0, 0, 0, 0),
+ BV8(0, 1, 0, 0, 0, 0, 0, 0),
+ BV8(0, 0, 1, 0, 0, 0, 0, 0),
+ BV8(0, 0, 0, 1, 0, 0, 0, 0),
+ BV8(0, 0, 0, 0, 1, 0, 0, 0),
+ BV8(0, 0, 0, 0, 0, 1, 0, 0),
+ BV8(0, 0, 0, 0, 0, 0, 1, 0),
+ BV8(0, 0, 0, 0, 0, 0, 0, 1))
+#endif /* CONFIG_AS_GFNI */
+
+/* 4-bit mask */
+.section .rodata.cst4.L0f0f0f0f, "aM", @progbits, 4
+.align 4
+.L0f0f0f0f:
+ .long 0x0f0f0f0f
+
+.text
+
+SYM_FUNC_START_LOCAL(__aria_aesni_avx_crypt_16way)
+ /* input:
+ * %r9: rk
+ * %rsi: dst
+ * %rdx: src
+ * %xmm0..%xmm15: 16 byte-sliced blocks
+ */
+
+ FRAME_BEGIN
+
+ movq %rsi, %rax;
+ leaq 8 * 16(%rax), %r8;
+
+ inpack16_post(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r8);
+ aria_fo(%xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 0);
+ aria_fe(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 1);
+ aria_fo(%xmm9, %xmm8, %xmm11, %xmm10, %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 2);
+ aria_fe(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 3);
+ aria_fo(%xmm9, %xmm8, %xmm11, %xmm10, %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 4);
+ aria_fe(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 5);
+ aria_fo(%xmm9, %xmm8, %xmm11, %xmm10, %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 6);
+ aria_fe(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 7);
+ aria_fo(%xmm9, %xmm8, %xmm11, %xmm10, %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 8);
+ aria_fe(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 9);
+ aria_fo(%xmm9, %xmm8, %xmm11, %xmm10, %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 10);
+ cmpl $12, ARIA_CTX_rounds(CTX);
+ jne .Laria_192;
+ aria_ff(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 11, 12);
+ jmp .Laria_end;
+.Laria_192:
+ aria_fe(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 11);
+ aria_fo(%xmm9, %xmm8, %xmm11, %xmm10, %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 12);
+ cmpl $14, ARIA_CTX_rounds(CTX);
+ jne .Laria_256;
+ aria_ff(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 13, 14);
+ jmp .Laria_end;
+.Laria_256:
+ aria_fe(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 13);
+ aria_fo(%xmm9, %xmm8, %xmm11, %xmm10, %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 14);
+ aria_ff(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 15, 16);
+.Laria_end:
+ debyteslice_16x16b(%xmm8, %xmm12, %xmm1, %xmm4,
+ %xmm9, %xmm13, %xmm0, %xmm5,
+ %xmm10, %xmm14, %xmm3, %xmm6,
+ %xmm11, %xmm15, %xmm2, %xmm7,
+ (%rax), (%r8));
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(__aria_aesni_avx_crypt_16way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx_encrypt_16way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+
+ leaq ARIA_CTX_enc_key(CTX), %r9;
+
+ inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rdx);
+
+ call __aria_aesni_avx_crypt_16way;
+
+ write_output(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx_encrypt_16way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx_decrypt_16way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+
+ leaq ARIA_CTX_dec_key(CTX), %r9;
+
+ inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rdx);
+
+ call __aria_aesni_avx_crypt_16way;
+
+ write_output(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx_decrypt_16way)
+
+SYM_FUNC_START_LOCAL(__aria_aesni_avx_ctr_gen_keystream_16way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: keystream
+ * %r8: iv (big endian, 128bit)
+ */
+
+ FRAME_BEGIN
+ /* load IV and byteswap */
+ vmovdqu (%r8), %xmm8;
+
+ vmovdqa .Lbswap128_mask (%rip), %xmm1;
+ vpshufb %xmm1, %xmm8, %xmm3; /* be => le */
+
+ vpcmpeqd %xmm0, %xmm0, %xmm0;
+ vpsrldq $8, %xmm0, %xmm0; /* low: -1, high: 0 */
+
+ /* construct IVs */
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm9;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm10;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm11;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm12;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm13;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm14;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm15;
+ vmovdqu %xmm8, (0 * 16)(%rcx);
+ vmovdqu %xmm9, (1 * 16)(%rcx);
+ vmovdqu %xmm10, (2 * 16)(%rcx);
+ vmovdqu %xmm11, (3 * 16)(%rcx);
+ vmovdqu %xmm12, (4 * 16)(%rcx);
+ vmovdqu %xmm13, (5 * 16)(%rcx);
+ vmovdqu %xmm14, (6 * 16)(%rcx);
+ vmovdqu %xmm15, (7 * 16)(%rcx);
+
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm8;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm9;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm10;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm11;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm12;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm13;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm14;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm15;
+ inc_le128(%xmm3, %xmm0, %xmm5); /* +1 */
+ vpshufb %xmm1, %xmm3, %xmm4;
+ vmovdqu %xmm4, (%r8);
+
+ vmovdqu (0 * 16)(%rcx), %xmm0;
+ vmovdqu (1 * 16)(%rcx), %xmm1;
+ vmovdqu (2 * 16)(%rcx), %xmm2;
+ vmovdqu (3 * 16)(%rcx), %xmm3;
+ vmovdqu (4 * 16)(%rcx), %xmm4;
+ vmovdqu (5 * 16)(%rcx), %xmm5;
+ vmovdqu (6 * 16)(%rcx), %xmm6;
+ vmovdqu (7 * 16)(%rcx), %xmm7;
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(__aria_aesni_avx_ctr_gen_keystream_16way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx_ctr_crypt_16way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: keystream
+ * %r8: iv (big endian, 128bit)
+ */
+ FRAME_BEGIN
+
+ call __aria_aesni_avx_ctr_gen_keystream_16way;
+
+ leaq (%rsi), %r10;
+ leaq (%rdx), %r11;
+ leaq (%rcx), %rsi;
+ leaq (%rcx), %rdx;
+ leaq ARIA_CTX_enc_key(CTX), %r9;
+
+ call __aria_aesni_avx_crypt_16way;
+
+ vpxor (0 * 16)(%r11), %xmm1, %xmm1;
+ vpxor (1 * 16)(%r11), %xmm0, %xmm0;
+ vpxor (2 * 16)(%r11), %xmm3, %xmm3;
+ vpxor (3 * 16)(%r11), %xmm2, %xmm2;
+ vpxor (4 * 16)(%r11), %xmm4, %xmm4;
+ vpxor (5 * 16)(%r11), %xmm5, %xmm5;
+ vpxor (6 * 16)(%r11), %xmm6, %xmm6;
+ vpxor (7 * 16)(%r11), %xmm7, %xmm7;
+ vpxor (8 * 16)(%r11), %xmm8, %xmm8;
+ vpxor (9 * 16)(%r11), %xmm9, %xmm9;
+ vpxor (10 * 16)(%r11), %xmm10, %xmm10;
+ vpxor (11 * 16)(%r11), %xmm11, %xmm11;
+ vpxor (12 * 16)(%r11), %xmm12, %xmm12;
+ vpxor (13 * 16)(%r11), %xmm13, %xmm13;
+ vpxor (14 * 16)(%r11), %xmm14, %xmm14;
+ vpxor (15 * 16)(%r11), %xmm15, %xmm15;
+ write_output(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %r10);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx_ctr_crypt_16way)
+
+#ifdef CONFIG_AS_GFNI
+SYM_FUNC_START_LOCAL(__aria_aesni_avx_gfni_crypt_16way)
+ /* input:
+ * %r9: rk
+ * %rsi: dst
+ * %rdx: src
+ * %xmm0..%xmm15: 16 byte-sliced blocks
+ */
+
+ FRAME_BEGIN
+
+ movq %rsi, %rax;
+ leaq 8 * 16(%rax), %r8;
+
+ inpack16_post(%xmm0, %xmm1, %xmm2, %xmm3,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r8);
+ aria_fo_gfni(%xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 0);
+ aria_fe_gfni(%xmm1, %xmm0, %xmm3, %xmm2,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 1);
+ aria_fo_gfni(%xmm9, %xmm8, %xmm11, %xmm10,
+ %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 2);
+ aria_fe_gfni(%xmm1, %xmm0, %xmm3, %xmm2,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 3);
+ aria_fo_gfni(%xmm9, %xmm8, %xmm11, %xmm10,
+ %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 4);
+ aria_fe_gfni(%xmm1, %xmm0, %xmm3, %xmm2,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 5);
+ aria_fo_gfni(%xmm9, %xmm8, %xmm11, %xmm10,
+ %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 6);
+ aria_fe_gfni(%xmm1, %xmm0, %xmm3, %xmm2,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 7);
+ aria_fo_gfni(%xmm9, %xmm8, %xmm11, %xmm10,
+ %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 8);
+ aria_fe_gfni(%xmm1, %xmm0, %xmm3, %xmm2,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 9);
+ aria_fo_gfni(%xmm9, %xmm8, %xmm11, %xmm10,
+ %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 10);
+ cmpl $12, ARIA_CTX_rounds(CTX);
+ jne .Laria_gfni_192;
+ aria_ff_gfni(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 11, 12);
+ jmp .Laria_gfni_end;
+.Laria_gfni_192:
+ aria_fe_gfni(%xmm1, %xmm0, %xmm3, %xmm2,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 11);
+ aria_fo_gfni(%xmm9, %xmm8, %xmm11, %xmm10,
+ %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 12);
+ cmpl $14, ARIA_CTX_rounds(CTX);
+ jne .Laria_gfni_256;
+ aria_ff_gfni(%xmm1, %xmm0, %xmm3, %xmm2,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 13, 14);
+ jmp .Laria_gfni_end;
+.Laria_gfni_256:
+ aria_fe_gfni(%xmm1, %xmm0, %xmm3, %xmm2,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 13);
+ aria_fo_gfni(%xmm9, %xmm8, %xmm11, %xmm10,
+ %xmm12, %xmm13, %xmm14, %xmm15,
+ %xmm0, %xmm1, %xmm2, %xmm3,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %rax, %r9, 14);
+ aria_ff_gfni(%xmm1, %xmm0, %xmm3, %xmm2,
+ %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11,
+ %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %r9, 15, 16);
+.Laria_gfni_end:
+ debyteslice_16x16b(%xmm8, %xmm12, %xmm1, %xmm4,
+ %xmm9, %xmm13, %xmm0, %xmm5,
+ %xmm10, %xmm14, %xmm3, %xmm6,
+ %xmm11, %xmm15, %xmm2, %xmm7,
+ (%rax), (%r8));
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(__aria_aesni_avx_gfni_crypt_16way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx_gfni_encrypt_16way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+
+ leaq ARIA_CTX_enc_key(CTX), %r9;
+
+ inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rdx);
+
+ call __aria_aesni_avx_gfni_crypt_16way;
+
+ write_output(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx_gfni_encrypt_16way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx_gfni_decrypt_16way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+
+ leaq ARIA_CTX_dec_key(CTX), %r9;
+
+ inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rdx);
+
+ call __aria_aesni_avx_gfni_crypt_16way;
+
+ write_output(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx_gfni_decrypt_16way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx_gfni_ctr_crypt_16way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: keystream
+ * %r8: iv (big endian, 128bit)
+ */
+ FRAME_BEGIN
+
+ call __aria_aesni_avx_ctr_gen_keystream_16way
+
+ leaq (%rsi), %r10;
+ leaq (%rdx), %r11;
+ leaq (%rcx), %rsi;
+ leaq (%rcx), %rdx;
+ leaq ARIA_CTX_enc_key(CTX), %r9;
+
+ call __aria_aesni_avx_gfni_crypt_16way;
+
+ vpxor (0 * 16)(%r11), %xmm1, %xmm1;
+ vpxor (1 * 16)(%r11), %xmm0, %xmm0;
+ vpxor (2 * 16)(%r11), %xmm3, %xmm3;
+ vpxor (3 * 16)(%r11), %xmm2, %xmm2;
+ vpxor (4 * 16)(%r11), %xmm4, %xmm4;
+ vpxor (5 * 16)(%r11), %xmm5, %xmm5;
+ vpxor (6 * 16)(%r11), %xmm6, %xmm6;
+ vpxor (7 * 16)(%r11), %xmm7, %xmm7;
+ vpxor (8 * 16)(%r11), %xmm8, %xmm8;
+ vpxor (9 * 16)(%r11), %xmm9, %xmm9;
+ vpxor (10 * 16)(%r11), %xmm10, %xmm10;
+ vpxor (11 * 16)(%r11), %xmm11, %xmm11;
+ vpxor (12 * 16)(%r11), %xmm12, %xmm12;
+ vpxor (13 * 16)(%r11), %xmm13, %xmm13;
+ vpxor (14 * 16)(%r11), %xmm14, %xmm14;
+ vpxor (15 * 16)(%r11), %xmm15, %xmm15;
+ write_output(%xmm1, %xmm0, %xmm3, %xmm2, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %r10);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx_gfni_ctr_crypt_16way)
+#endif /* CONFIG_AS_GFNI */
diff --git a/arch/x86/crypto/aria-aesni-avx2-asm_64.S b/arch/x86/crypto/aria-aesni-avx2-asm_64.S
new file mode 100644
index 000000000000..c60fa2980630
--- /dev/null
+++ b/arch/x86/crypto/aria-aesni-avx2-asm_64.S
@@ -0,0 +1,1441 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * ARIA Cipher 32-way parallel algorithm (AVX2)
+ *
+ * Copyright (c) 2022 Taehee Yoo <ap420073@gmail.com>
+ *
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+#include <asm/asm-offsets.h>
+#include <linux/cfi_types.h>
+
+/* register macros */
+#define CTX %rdi
+
+#define ymm0_x xmm0
+#define ymm1_x xmm1
+#define ymm2_x xmm2
+#define ymm3_x xmm3
+#define ymm4_x xmm4
+#define ymm5_x xmm5
+#define ymm6_x xmm6
+#define ymm7_x xmm7
+#define ymm8_x xmm8
+#define ymm9_x xmm9
+#define ymm10_x xmm10
+#define ymm11_x xmm11
+#define ymm12_x xmm12
+#define ymm13_x xmm13
+#define ymm14_x xmm14
+#define ymm15_x xmm15
+
+#define BV8(a0, a1, a2, a3, a4, a5, a6, a7) \
+ ( (((a0) & 1) << 0) | \
+ (((a1) & 1) << 1) | \
+ (((a2) & 1) << 2) | \
+ (((a3) & 1) << 3) | \
+ (((a4) & 1) << 4) | \
+ (((a5) & 1) << 5) | \
+ (((a6) & 1) << 6) | \
+ (((a7) & 1) << 7) )
+
+#define BM8X8(l0, l1, l2, l3, l4, l5, l6, l7) \
+ ( ((l7) << (0 * 8)) | \
+ ((l6) << (1 * 8)) | \
+ ((l5) << (2 * 8)) | \
+ ((l4) << (3 * 8)) | \
+ ((l3) << (4 * 8)) | \
+ ((l2) << (5 * 8)) | \
+ ((l1) << (6 * 8)) | \
+ ((l0) << (7 * 8)) )
+
+#define inc_le128(x, minus_one, tmp) \
+ vpcmpeqq minus_one, x, tmp; \
+ vpsubq minus_one, x, x; \
+ vpslldq $8, tmp, tmp; \
+ vpsubq tmp, x, x;
+
+#define filter_8bit(x, lo_t, hi_t, mask4bit, tmp0) \
+ vpand x, mask4bit, tmp0; \
+ vpandn x, mask4bit, x; \
+ vpsrld $4, x, x; \
+ \
+ vpshufb tmp0, lo_t, tmp0; \
+ vpshufb x, hi_t, x; \
+ vpxor tmp0, x, x;
+
+#define transpose_4x4(x0, x1, x2, x3, t1, t2) \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x1, x0, x0; \
+ \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x2; \
+ \
+ vpunpckhqdq t1, x0, x1; \
+ vpunpcklqdq t1, x0, x0; \
+ \
+ vpunpckhqdq x2, t2, x3; \
+ vpunpcklqdq x2, t2, x2;
+
+#define byteslice_16x16b(a0, b0, c0, d0, \
+ a1, b1, c1, d1, \
+ a2, b2, c2, d2, \
+ a3, b3, c3, d3, \
+ st0, st1) \
+ vmovdqu d2, st0; \
+ vmovdqu d3, st1; \
+ transpose_4x4(a0, a1, a2, a3, d2, d3); \
+ transpose_4x4(b0, b1, b2, b3, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu a0, st0; \
+ vmovdqu a1, st1; \
+ transpose_4x4(c0, c1, c2, c3, a0, a1); \
+ transpose_4x4(d0, d1, d2, d3, a0, a1); \
+ \
+ vbroadcasti128 .Lshufb_16x16b(%rip), a0; \
+ vmovdqu st1, a1; \
+ vpshufb a0, a2, a2; \
+ vpshufb a0, a3, a3; \
+ vpshufb a0, b0, b0; \
+ vpshufb a0, b1, b1; \
+ vpshufb a0, b2, b2; \
+ vpshufb a0, b3, b3; \
+ vpshufb a0, a1, a1; \
+ vpshufb a0, c0, c0; \
+ vpshufb a0, c1, c1; \
+ vpshufb a0, c2, c2; \
+ vpshufb a0, c3, c3; \
+ vpshufb a0, d0, d0; \
+ vpshufb a0, d1, d1; \
+ vpshufb a0, d2, d2; \
+ vpshufb a0, d3, d3; \
+ vmovdqu d3, st1; \
+ vmovdqu st0, d3; \
+ vpshufb a0, d3, a0; \
+ vmovdqu d2, st0; \
+ \
+ transpose_4x4(a0, b0, c0, d0, d2, d3); \
+ transpose_4x4(a1, b1, c1, d1, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu b0, st0; \
+ vmovdqu b1, st1; \
+ transpose_4x4(a2, b2, c2, d2, b0, b1); \
+ transpose_4x4(a3, b3, c3, d3, b0, b1); \
+ vmovdqu st0, b0; \
+ vmovdqu st1, b1; \
+ /* does not adjust output bytes inside vectors */
+
+#define debyteslice_16x16b(a0, b0, c0, d0, \
+ a1, b1, c1, d1, \
+ a2, b2, c2, d2, \
+ a3, b3, c3, d3, \
+ st0, st1) \
+ vmovdqu d2, st0; \
+ vmovdqu d3, st1; \
+ transpose_4x4(a0, a1, a2, a3, d2, d3); \
+ transpose_4x4(b0, b1, b2, b3, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu a0, st0; \
+ vmovdqu a1, st1; \
+ transpose_4x4(c0, c1, c2, c3, a0, a1); \
+ transpose_4x4(d0, d1, d2, d3, a0, a1); \
+ \
+ vbroadcasti128 .Lshufb_16x16b(%rip), a0; \
+ vmovdqu st1, a1; \
+ vpshufb a0, a2, a2; \
+ vpshufb a0, a3, a3; \
+ vpshufb a0, b0, b0; \
+ vpshufb a0, b1, b1; \
+ vpshufb a0, b2, b2; \
+ vpshufb a0, b3, b3; \
+ vpshufb a0, a1, a1; \
+ vpshufb a0, c0, c0; \
+ vpshufb a0, c1, c1; \
+ vpshufb a0, c2, c2; \
+ vpshufb a0, c3, c3; \
+ vpshufb a0, d0, d0; \
+ vpshufb a0, d1, d1; \
+ vpshufb a0, d2, d2; \
+ vpshufb a0, d3, d3; \
+ vmovdqu d3, st1; \
+ vmovdqu st0, d3; \
+ vpshufb a0, d3, a0; \
+ vmovdqu d2, st0; \
+ \
+ transpose_4x4(c0, d0, a0, b0, d2, d3); \
+ transpose_4x4(c1, d1, a1, b1, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu b0, st0; \
+ vmovdqu b1, st1; \
+ transpose_4x4(c2, d2, a2, b2, b0, b1); \
+ transpose_4x4(c3, d3, a3, b3, b0, b1); \
+ vmovdqu st0, b0; \
+ vmovdqu st1, b1; \
+ /* does not adjust output bytes inside vectors */
+
+/* load blocks to registers and apply pre-whitening */
+#define inpack16_pre(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ rio) \
+ vmovdqu (0 * 32)(rio), x0; \
+ vmovdqu (1 * 32)(rio), x1; \
+ vmovdqu (2 * 32)(rio), x2; \
+ vmovdqu (3 * 32)(rio), x3; \
+ vmovdqu (4 * 32)(rio), x4; \
+ vmovdqu (5 * 32)(rio), x5; \
+ vmovdqu (6 * 32)(rio), x6; \
+ vmovdqu (7 * 32)(rio), x7; \
+ vmovdqu (8 * 32)(rio), y0; \
+ vmovdqu (9 * 32)(rio), y1; \
+ vmovdqu (10 * 32)(rio), y2; \
+ vmovdqu (11 * 32)(rio), y3; \
+ vmovdqu (12 * 32)(rio), y4; \
+ vmovdqu (13 * 32)(rio), y5; \
+ vmovdqu (14 * 32)(rio), y6; \
+ vmovdqu (15 * 32)(rio), y7;
+
+/* byteslice pre-whitened blocks and store to temporary memory */
+#define inpack16_post(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_ab, mem_cd) \
+ byteslice_16x16b(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ (mem_ab), (mem_cd)); \
+ \
+ vmovdqu x0, 0 * 32(mem_ab); \
+ vmovdqu x1, 1 * 32(mem_ab); \
+ vmovdqu x2, 2 * 32(mem_ab); \
+ vmovdqu x3, 3 * 32(mem_ab); \
+ vmovdqu x4, 4 * 32(mem_ab); \
+ vmovdqu x5, 5 * 32(mem_ab); \
+ vmovdqu x6, 6 * 32(mem_ab); \
+ vmovdqu x7, 7 * 32(mem_ab); \
+ vmovdqu y0, 0 * 32(mem_cd); \
+ vmovdqu y1, 1 * 32(mem_cd); \
+ vmovdqu y2, 2 * 32(mem_cd); \
+ vmovdqu y3, 3 * 32(mem_cd); \
+ vmovdqu y4, 4 * 32(mem_cd); \
+ vmovdqu y5, 5 * 32(mem_cd); \
+ vmovdqu y6, 6 * 32(mem_cd); \
+ vmovdqu y7, 7 * 32(mem_cd);
+
+#define write_output(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem) \
+ vmovdqu x0, 0 * 32(mem); \
+ vmovdqu x1, 1 * 32(mem); \
+ vmovdqu x2, 2 * 32(mem); \
+ vmovdqu x3, 3 * 32(mem); \
+ vmovdqu x4, 4 * 32(mem); \
+ vmovdqu x5, 5 * 32(mem); \
+ vmovdqu x6, 6 * 32(mem); \
+ vmovdqu x7, 7 * 32(mem); \
+ vmovdqu y0, 8 * 32(mem); \
+ vmovdqu y1, 9 * 32(mem); \
+ vmovdqu y2, 10 * 32(mem); \
+ vmovdqu y3, 11 * 32(mem); \
+ vmovdqu y4, 12 * 32(mem); \
+ vmovdqu y5, 13 * 32(mem); \
+ vmovdqu y6, 14 * 32(mem); \
+ vmovdqu y7, 15 * 32(mem); \
+
+#define aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, idx) \
+ vmovdqu x0, ((idx + 0) * 32)(mem_tmp); \
+ vmovdqu x1, ((idx + 1) * 32)(mem_tmp); \
+ vmovdqu x2, ((idx + 2) * 32)(mem_tmp); \
+ vmovdqu x3, ((idx + 3) * 32)(mem_tmp); \
+ vmovdqu x4, ((idx + 4) * 32)(mem_tmp); \
+ vmovdqu x5, ((idx + 5) * 32)(mem_tmp); \
+ vmovdqu x6, ((idx + 6) * 32)(mem_tmp); \
+ vmovdqu x7, ((idx + 7) * 32)(mem_tmp);
+
+#define aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, idx) \
+ vmovdqu ((idx + 0) * 32)(mem_tmp), x0; \
+ vmovdqu ((idx + 1) * 32)(mem_tmp), x1; \
+ vmovdqu ((idx + 2) * 32)(mem_tmp), x2; \
+ vmovdqu ((idx + 3) * 32)(mem_tmp), x3; \
+ vmovdqu ((idx + 4) * 32)(mem_tmp), x4; \
+ vmovdqu ((idx + 5) * 32)(mem_tmp), x5; \
+ vmovdqu ((idx + 6) * 32)(mem_tmp), x6; \
+ vmovdqu ((idx + 7) * 32)(mem_tmp), x7;
+
+#define aria_ark_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ t0, rk, idx, round) \
+ /* AddRoundKey */ \
+ vpbroadcastb ((round * 16) + idx + 3)(rk), t0; \
+ vpxor t0, x0, x0; \
+ vpbroadcastb ((round * 16) + idx + 2)(rk), t0; \
+ vpxor t0, x1, x1; \
+ vpbroadcastb ((round * 16) + idx + 1)(rk), t0; \
+ vpxor t0, x2, x2; \
+ vpbroadcastb ((round * 16) + idx + 0)(rk), t0; \
+ vpxor t0, x3, x3; \
+ vpbroadcastb ((round * 16) + idx + 7)(rk), t0; \
+ vpxor t0, x4, x4; \
+ vpbroadcastb ((round * 16) + idx + 6)(rk), t0; \
+ vpxor t0, x5, x5; \
+ vpbroadcastb ((round * 16) + idx + 5)(rk), t0; \
+ vpxor t0, x6, x6; \
+ vpbroadcastb ((round * 16) + idx + 4)(rk), t0; \
+ vpxor t0, x7, x7;
+
+#ifdef CONFIG_AS_GFNI
+#define aria_sbox_8way_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ t0, t1, t2, t3, \
+ t4, t5, t6, t7) \
+ vpbroadcastq .Ltf_s2_bitmatrix(%rip), t0; \
+ vpbroadcastq .Ltf_inv_bitmatrix(%rip), t1; \
+ vpbroadcastq .Ltf_id_bitmatrix(%rip), t2; \
+ vpbroadcastq .Ltf_aff_bitmatrix(%rip), t3; \
+ vpbroadcastq .Ltf_x2_bitmatrix(%rip), t4; \
+ vgf2p8affineinvqb $(tf_s2_const), t0, x1, x1; \
+ vgf2p8affineinvqb $(tf_s2_const), t0, x5, x5; \
+ vgf2p8affineqb $(tf_inv_const), t1, x2, x2; \
+ vgf2p8affineqb $(tf_inv_const), t1, x6, x6; \
+ vgf2p8affineinvqb $0, t2, x2, x2; \
+ vgf2p8affineinvqb $0, t2, x6, x6; \
+ vgf2p8affineinvqb $(tf_aff_const), t3, x0, x0; \
+ vgf2p8affineinvqb $(tf_aff_const), t3, x4, x4; \
+ vgf2p8affineqb $(tf_x2_const), t4, x3, x3; \
+ vgf2p8affineqb $(tf_x2_const), t4, x7, x7; \
+ vgf2p8affineinvqb $0, t2, x3, x3; \
+ vgf2p8affineinvqb $0, t2, x7, x7
+
+#endif /* CONFIG_AS_GFNI */
+#define aria_sbox_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ t0, t1, t2, t3, \
+ t4, t5, t6, t7) \
+ vpxor t7, t7, t7; \
+ vpxor t6, t6, t6; \
+ vbroadcasti128 .Linv_shift_row(%rip), t0; \
+ vbroadcasti128 .Lshift_row(%rip), t1; \
+ vbroadcasti128 .Ltf_lo__inv_aff__and__s2(%rip), t2; \
+ vbroadcasti128 .Ltf_hi__inv_aff__and__s2(%rip), t3; \
+ vbroadcasti128 .Ltf_lo__x2__and__fwd_aff(%rip), t4; \
+ vbroadcasti128 .Ltf_hi__x2__and__fwd_aff(%rip), t5; \
+ \
+ vextracti128 $1, x0, t6##_x; \
+ vaesenclast t7##_x, x0##_x, x0##_x; \
+ vaesenclast t7##_x, t6##_x, t6##_x; \
+ vinserti128 $1, t6##_x, x0, x0; \
+ \
+ vextracti128 $1, x4, t6##_x; \
+ vaesenclast t7##_x, x4##_x, x4##_x; \
+ vaesenclast t7##_x, t6##_x, t6##_x; \
+ vinserti128 $1, t6##_x, x4, x4; \
+ \
+ vextracti128 $1, x1, t6##_x; \
+ vaesenclast t7##_x, x1##_x, x1##_x; \
+ vaesenclast t7##_x, t6##_x, t6##_x; \
+ vinserti128 $1, t6##_x, x1, x1; \
+ \
+ vextracti128 $1, x5, t6##_x; \
+ vaesenclast t7##_x, x5##_x, x5##_x; \
+ vaesenclast t7##_x, t6##_x, t6##_x; \
+ vinserti128 $1, t6##_x, x5, x5; \
+ \
+ vextracti128 $1, x2, t6##_x; \
+ vaesdeclast t7##_x, x2##_x, x2##_x; \
+ vaesdeclast t7##_x, t6##_x, t6##_x; \
+ vinserti128 $1, t6##_x, x2, x2; \
+ \
+ vextracti128 $1, x6, t6##_x; \
+ vaesdeclast t7##_x, x6##_x, x6##_x; \
+ vaesdeclast t7##_x, t6##_x, t6##_x; \
+ vinserti128 $1, t6##_x, x6, x6; \
+ \
+ vpbroadcastd .L0f0f0f0f(%rip), t6; \
+ \
+ /* AES inverse shift rows */ \
+ vpshufb t0, x0, x0; \
+ vpshufb t0, x4, x4; \
+ vpshufb t0, x1, x1; \
+ vpshufb t0, x5, x5; \
+ vpshufb t1, x3, x3; \
+ vpshufb t1, x7, x7; \
+ vpshufb t1, x2, x2; \
+ vpshufb t1, x6, x6; \
+ \
+ /* affine transformation for S2 */ \
+ filter_8bit(x1, t2, t3, t6, t0); \
+ /* affine transformation for S2 */ \
+ filter_8bit(x5, t2, t3, t6, t0); \
+ \
+ /* affine transformation for X2 */ \
+ filter_8bit(x3, t4, t5, t6, t0); \
+ /* affine transformation for X2 */ \
+ filter_8bit(x7, t4, t5, t6, t0); \
+ \
+ vpxor t6, t6, t6; \
+ vextracti128 $1, x3, t6##_x; \
+ vaesdeclast t7##_x, x3##_x, x3##_x; \
+ vaesdeclast t7##_x, t6##_x, t6##_x; \
+ vinserti128 $1, t6##_x, x3, x3; \
+ \
+ vextracti128 $1, x7, t6##_x; \
+ vaesdeclast t7##_x, x7##_x, x7##_x; \
+ vaesdeclast t7##_x, t6##_x, t6##_x; \
+ vinserti128 $1, t6##_x, x7, x7; \
+
+#define aria_diff_m(x0, x1, x2, x3, \
+ t0, t1, t2, t3) \
+ /* T = rotr32(X, 8); */ \
+ /* X ^= T */ \
+ vpxor x0, x3, t0; \
+ vpxor x1, x0, t1; \
+ vpxor x2, x1, t2; \
+ vpxor x3, x2, t3; \
+ /* X = T ^ rotr(X, 16); */ \
+ vpxor t2, x0, x0; \
+ vpxor x1, t3, t3; \
+ vpxor t0, x2, x2; \
+ vpxor t1, x3, x1; \
+ vmovdqu t3, x3;
+
+#define aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7) \
+ /* t1 ^= t2; */ \
+ vpxor y0, x4, x4; \
+ vpxor y1, x5, x5; \
+ vpxor y2, x6, x6; \
+ vpxor y3, x7, x7; \
+ \
+ /* t2 ^= t3; */ \
+ vpxor y4, y0, y0; \
+ vpxor y5, y1, y1; \
+ vpxor y6, y2, y2; \
+ vpxor y7, y3, y3; \
+ \
+ /* t0 ^= t1; */ \
+ vpxor x4, x0, x0; \
+ vpxor x5, x1, x1; \
+ vpxor x6, x2, x2; \
+ vpxor x7, x3, x3; \
+ \
+ /* t3 ^= t1; */ \
+ vpxor x4, y4, y4; \
+ vpxor x5, y5, y5; \
+ vpxor x6, y6, y6; \
+ vpxor x7, y7, y7; \
+ \
+ /* t2 ^= t0; */ \
+ vpxor x0, y0, y0; \
+ vpxor x1, y1, y1; \
+ vpxor x2, y2, y2; \
+ vpxor x3, y3, y3; \
+ \
+ /* t1 ^= t2; */ \
+ vpxor y0, x4, x4; \
+ vpxor y1, x5, x5; \
+ vpxor y2, x6, x6; \
+ vpxor y3, x7, x7;
+
+#define aria_fe(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round) \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 8, round); \
+ \
+ aria_sbox_8way(x2, x3, x0, x1, x6, x7, x4, x5, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 0, round); \
+ \
+ aria_sbox_8way(x2, x3, x0, x1, x6, x7, x4, x5, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8); \
+ aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ /* aria_diff_byte() \
+ * T3 = ABCD -> BADC \
+ * T3 = y4, y5, y6, y7 -> y5, y4, y7, y6 \
+ * T0 = ABCD -> CDAB \
+ * T0 = x0, x1, x2, x3 -> x2, x3, x0, x1 \
+ * T1 = ABCD -> DCBA \
+ * T1 = x4, x5, x6, x7 -> x7, x6, x5, x4 \
+ */ \
+ aria_diff_word(x2, x3, x0, x1, \
+ x7, x6, x5, x4, \
+ y0, y1, y2, y3, \
+ y5, y4, y7, y6); \
+ aria_store_state_8way(x3, x2, x1, x0, \
+ x6, x7, x4, x5, \
+ mem_tmp, 0);
+
+#define aria_fo(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round) \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 8, round); \
+ \
+ aria_sbox_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 0, round); \
+ \
+ aria_sbox_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8); \
+ aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ /* aria_diff_byte() \
+ * T1 = ABCD -> BADC \
+ * T1 = x4, x5, x6, x7 -> x5, x4, x7, x6 \
+ * T2 = ABCD -> CDAB \
+ * T2 = y0, y1, y2, y3, -> y2, y3, y0, y1 \
+ * T3 = ABCD -> DCBA \
+ * T3 = y4, y5, y6, y7 -> y7, y6, y5, y4 \
+ */ \
+ aria_diff_word(x0, x1, x2, x3, \
+ x5, x4, x7, x6, \
+ y2, y3, y0, y1, \
+ y7, y6, y5, y4); \
+ aria_store_state_8way(x3, x2, x1, x0, \
+ x6, x7, x4, x5, \
+ mem_tmp, 0);
+
+#define aria_ff(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round, last_round) \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 8, round); \
+ \
+ aria_sbox_8way(x2, x3, x0, x1, x6, x7, x4, x5, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 8, last_round); \
+ \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 0, round); \
+ \
+ aria_sbox_8way(x2, x3, x0, x1, x6, x7, x4, x5, \
+ y0, y1, y2, y3, y4, y5, y6, y7); \
+ \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 0, last_round); \
+ \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8);
+#ifdef CONFIG_AS_GFNI
+#define aria_fe_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round) \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 8, round); \
+ \
+ aria_sbox_8way_gfni(x2, x3, x0, x1, \
+ x6, x7, x4, x5, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 0, round); \
+ \
+ aria_sbox_8way_gfni(x2, x3, x0, x1, \
+ x6, x7, x4, x5, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8); \
+ aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ /* aria_diff_byte() \
+ * T3 = ABCD -> BADC \
+ * T3 = y4, y5, y6, y7 -> y5, y4, y7, y6 \
+ * T0 = ABCD -> CDAB \
+ * T0 = x0, x1, x2, x3 -> x2, x3, x0, x1 \
+ * T1 = ABCD -> DCBA \
+ * T1 = x4, x5, x6, x7 -> x7, x6, x5, x4 \
+ */ \
+ aria_diff_word(x2, x3, x0, x1, \
+ x7, x6, x5, x4, \
+ y0, y1, y2, y3, \
+ y5, y4, y7, y6); \
+ aria_store_state_8way(x3, x2, x1, x0, \
+ x6, x7, x4, x5, \
+ mem_tmp, 0);
+
+#define aria_fo_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round) \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 8, round); \
+ \
+ aria_sbox_8way_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 0, round); \
+ \
+ aria_sbox_8way_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, y0, y1, y2, y3); \
+ aria_diff_m(x4, x5, x6, x7, y0, y1, y2, y3); \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8); \
+ aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ /* aria_diff_byte() \
+ * T1 = ABCD -> BADC \
+ * T1 = x4, x5, x6, x7 -> x5, x4, x7, x6 \
+ * T2 = ABCD -> CDAB \
+ * T2 = y0, y1, y2, y3, -> y2, y3, y0, y1 \
+ * T3 = ABCD -> DCBA \
+ * T3 = y4, y5, y6, y7 -> y7, y6, y5, y4 \
+ */ \
+ aria_diff_word(x0, x1, x2, x3, \
+ x5, x4, x7, x6, \
+ y2, y3, y0, y1, \
+ y7, y6, y5, y4); \
+ aria_store_state_8way(x3, x2, x1, x0, \
+ x6, x7, x4, x5, \
+ mem_tmp, 0);
+
+#define aria_ff_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, rk, round, last_round) \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 8, round); \
+ \
+ aria_sbox_8way_gfni(x2, x3, x0, x1, \
+ x6, x7, x4, x5, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 8, last_round); \
+ \
+ aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 8); \
+ \
+ aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, 0); \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 0, round); \
+ \
+ aria_sbox_8way_gfni(x2, x3, x0, x1, \
+ x6, x7, x4, x5, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ \
+ aria_ark_8way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, rk, 0, last_round); \
+ \
+ aria_load_state_8way(y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_tmp, 8);
+#endif /* CONFIG_AS_GFNI */
+
+.section .rodata.cst32.shufb_16x16b, "aM", @progbits, 32
+.align 32
+#define SHUFB_BYTES(idx) \
+ 0 + (idx), 4 + (idx), 8 + (idx), 12 + (idx)
+.Lshufb_16x16b:
+ .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3)
+ .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3)
+
+.section .rodata.cst16, "aM", @progbits, 16
+.align 16
+/* For isolating SubBytes from AESENCLAST, inverse shift row */
+.Linv_shift_row:
+ .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b
+ .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03
+.Lshift_row:
+ .byte 0x00, 0x05, 0x0a, 0x0f, 0x04, 0x09, 0x0e, 0x03
+ .byte 0x08, 0x0d, 0x02, 0x07, 0x0c, 0x01, 0x06, 0x0b
+/* For CTR-mode IV byteswap */
+.Lbswap128_mask:
+ .byte 0x0f, 0x0e, 0x0d, 0x0c, 0x0b, 0x0a, 0x09, 0x08
+ .byte 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00
+
+/* AES inverse affine and S2 combined:
+ * 1 1 0 0 0 0 0 1 x0 0
+ * 0 1 0 0 1 0 0 0 x1 0
+ * 1 1 0 0 1 1 1 1 x2 0
+ * 0 1 1 0 1 0 0 1 x3 1
+ * 0 1 0 0 1 1 0 0 * x4 + 0
+ * 0 1 0 1 1 0 0 0 x5 0
+ * 0 0 0 0 0 1 0 1 x6 0
+ * 1 1 1 0 0 1 1 1 x7 1
+ */
+.Ltf_lo__inv_aff__and__s2:
+ .octa 0x92172DA81A9FA520B2370D883ABF8500
+.Ltf_hi__inv_aff__and__s2:
+ .octa 0x2B15FFC1AF917B45E6D8320C625CB688
+
+/* X2 and AES forward affine combined:
+ * 1 0 1 1 0 0 0 1 x0 0
+ * 0 1 1 1 1 0 1 1 x1 0
+ * 0 0 0 1 1 0 1 0 x2 1
+ * 0 1 0 0 0 1 0 0 x3 0
+ * 0 0 1 1 1 0 1 1 * x4 + 0
+ * 0 1 0 0 1 0 0 0 x5 0
+ * 1 1 0 1 0 0 1 1 x6 0
+ * 0 1 0 0 1 0 1 0 x7 0
+ */
+.Ltf_lo__x2__and__fwd_aff:
+ .octa 0xEFAE0544FCBD1657B8F95213ABEA4100
+.Ltf_hi__x2__and__fwd_aff:
+ .octa 0x3F893781E95FE1576CDA64D2BA0CB204
+
+#ifdef CONFIG_AS_GFNI
+.section .rodata.cst8, "aM", @progbits, 8
+.align 8
+/* AES affine: */
+#define tf_aff_const BV8(1, 1, 0, 0, 0, 1, 1, 0)
+.Ltf_aff_bitmatrix:
+ .quad BM8X8(BV8(1, 0, 0, 0, 1, 1, 1, 1),
+ BV8(1, 1, 0, 0, 0, 1, 1, 1),
+ BV8(1, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 1, 0, 0, 0, 1),
+ BV8(1, 1, 1, 1, 1, 0, 0, 0),
+ BV8(0, 1, 1, 1, 1, 1, 0, 0),
+ BV8(0, 0, 1, 1, 1, 1, 1, 0),
+ BV8(0, 0, 0, 1, 1, 1, 1, 1))
+
+/* AES inverse affine: */
+#define tf_inv_const BV8(1, 0, 1, 0, 0, 0, 0, 0)
+.Ltf_inv_bitmatrix:
+ .quad BM8X8(BV8(0, 0, 1, 0, 0, 1, 0, 1),
+ BV8(1, 0, 0, 1, 0, 0, 1, 0),
+ BV8(0, 1, 0, 0, 1, 0, 0, 1),
+ BV8(1, 0, 1, 0, 0, 1, 0, 0),
+ BV8(0, 1, 0, 1, 0, 0, 1, 0),
+ BV8(0, 0, 1, 0, 1, 0, 0, 1),
+ BV8(1, 0, 0, 1, 0, 1, 0, 0),
+ BV8(0, 1, 0, 0, 1, 0, 1, 0))
+
+/* S2: */
+#define tf_s2_const BV8(0, 1, 0, 0, 0, 1, 1, 1)
+.Ltf_s2_bitmatrix:
+ .quad BM8X8(BV8(0, 1, 0, 1, 0, 1, 1, 1),
+ BV8(0, 0, 1, 1, 1, 1, 1, 1),
+ BV8(1, 1, 1, 0, 1, 1, 0, 1),
+ BV8(1, 1, 0, 0, 0, 0, 1, 1),
+ BV8(0, 1, 0, 0, 0, 0, 1, 1),
+ BV8(1, 1, 0, 0, 1, 1, 1, 0),
+ BV8(0, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 1, 0, 1, 1, 0))
+
+/* X2: */
+#define tf_x2_const BV8(0, 0, 1, 1, 0, 1, 0, 0)
+.Ltf_x2_bitmatrix:
+ .quad BM8X8(BV8(0, 0, 0, 1, 1, 0, 0, 0),
+ BV8(0, 0, 1, 0, 0, 1, 1, 0),
+ BV8(0, 0, 0, 0, 1, 0, 1, 0),
+ BV8(1, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 0, 1, 1, 0, 0),
+ BV8(0, 1, 1, 0, 1, 0, 1, 1),
+ BV8(1, 0, 1, 1, 1, 1, 0, 1),
+ BV8(1, 0, 0, 1, 0, 0, 1, 1))
+
+/* Identity matrix: */
+.Ltf_id_bitmatrix:
+ .quad BM8X8(BV8(1, 0, 0, 0, 0, 0, 0, 0),
+ BV8(0, 1, 0, 0, 0, 0, 0, 0),
+ BV8(0, 0, 1, 0, 0, 0, 0, 0),
+ BV8(0, 0, 0, 1, 0, 0, 0, 0),
+ BV8(0, 0, 0, 0, 1, 0, 0, 0),
+ BV8(0, 0, 0, 0, 0, 1, 0, 0),
+ BV8(0, 0, 0, 0, 0, 0, 1, 0),
+ BV8(0, 0, 0, 0, 0, 0, 0, 1))
+
+#endif /* CONFIG_AS_GFNI */
+
+/* 4-bit mask */
+.section .rodata.cst4.L0f0f0f0f, "aM", @progbits, 4
+.align 4
+.L0f0f0f0f:
+ .long 0x0f0f0f0f
+
+.text
+
+SYM_FUNC_START_LOCAL(__aria_aesni_avx2_crypt_32way)
+ /* input:
+ * %r9: rk
+ * %rsi: dst
+ * %rdx: src
+ * %ymm0..%ymm15: byte-sliced blocks
+ */
+
+ FRAME_BEGIN
+
+ movq %rsi, %rax;
+ leaq 8 * 32(%rax), %r8;
+
+ inpack16_post(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r8);
+ aria_fo(%ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 0);
+ aria_fe(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 1);
+ aria_fo(%ymm9, %ymm8, %ymm11, %ymm10, %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 2);
+ aria_fe(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 3);
+ aria_fo(%ymm9, %ymm8, %ymm11, %ymm10, %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 4);
+ aria_fe(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 5);
+ aria_fo(%ymm9, %ymm8, %ymm11, %ymm10, %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 6);
+ aria_fe(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 7);
+ aria_fo(%ymm9, %ymm8, %ymm11, %ymm10, %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 8);
+ aria_fe(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 9);
+ aria_fo(%ymm9, %ymm8, %ymm11, %ymm10, %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 10);
+ cmpl $12, ARIA_CTX_rounds(CTX);
+ jne .Laria_192;
+ aria_ff(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 11, 12);
+ jmp .Laria_end;
+.Laria_192:
+ aria_fe(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 11);
+ aria_fo(%ymm9, %ymm8, %ymm11, %ymm10, %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 12);
+ cmpl $14, ARIA_CTX_rounds(CTX);
+ jne .Laria_256;
+ aria_ff(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 13, 14);
+ jmp .Laria_end;
+.Laria_256:
+ aria_fe(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 13);
+ aria_fo(%ymm9, %ymm8, %ymm11, %ymm10, %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 14);
+ aria_ff(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 15, 16);
+.Laria_end:
+ debyteslice_16x16b(%ymm8, %ymm12, %ymm1, %ymm4,
+ %ymm9, %ymm13, %ymm0, %ymm5,
+ %ymm10, %ymm14, %ymm3, %ymm6,
+ %ymm11, %ymm15, %ymm2, %ymm7,
+ (%rax), (%r8));
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(__aria_aesni_avx2_crypt_32way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx2_encrypt_32way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+
+ leaq ARIA_CTX_enc_key(CTX), %r9;
+
+ inpack16_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rdx);
+
+ call __aria_aesni_avx2_crypt_32way;
+
+ write_output(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx2_encrypt_32way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx2_decrypt_32way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+
+ leaq ARIA_CTX_dec_key(CTX), %r9;
+
+ inpack16_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rdx);
+
+ call __aria_aesni_avx2_crypt_32way;
+
+ write_output(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx2_decrypt_32way)
+
+SYM_FUNC_START_LOCAL(__aria_aesni_avx2_ctr_gen_keystream_32way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: keystream
+ * %r8: iv (big endian, 128bit)
+ */
+
+ FRAME_BEGIN
+ movq 8(%r8), %r11;
+ bswapq %r11;
+
+ vbroadcasti128 .Lbswap128_mask (%rip), %ymm6;
+ vpcmpeqd %ymm0, %ymm0, %ymm0;
+ vpsrldq $8, %ymm0, %ymm0; /* ab: -1:0 ; cd: -1:0 */
+ vpaddq %ymm0, %ymm0, %ymm5; /* ab: -2:0 ; cd: -2:0 */
+
+ /* load IV and byteswap */
+ vmovdqu (%r8), %xmm7;
+ vpshufb %xmm6, %xmm7, %xmm7;
+ vmovdqa %xmm7, %xmm3;
+ inc_le128(%xmm7, %xmm0, %xmm4);
+ vinserti128 $1, %xmm7, %ymm3, %ymm3;
+ vpshufb %ymm6, %ymm3, %ymm8; /* +1 ; +0 */
+
+ /* check need for handling 64-bit overflow and carry */
+ cmpq $(0xffffffffffffffff - 32), %r11;
+ ja .Lhandle_ctr_carry;
+
+ /* construct IVs */
+ vpsubq %ymm5, %ymm3, %ymm3; /* +3 ; +2 */
+ vpshufb %ymm6, %ymm3, %ymm9;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +5 ; +4 */
+ vpshufb %ymm6, %ymm3, %ymm10;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +7 ; +6 */
+ vpshufb %ymm6, %ymm3, %ymm11;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +9 ; +8 */
+ vpshufb %ymm6, %ymm3, %ymm12;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +11 ; +10 */
+ vpshufb %ymm6, %ymm3, %ymm13;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +13 ; +12 */
+ vpshufb %ymm6, %ymm3, %ymm14;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +15 ; +14 */
+ vpshufb %ymm6, %ymm3, %ymm15;
+ vmovdqu %ymm8, (0 * 32)(%rcx);
+ vmovdqu %ymm9, (1 * 32)(%rcx);
+ vmovdqu %ymm10, (2 * 32)(%rcx);
+ vmovdqu %ymm11, (3 * 32)(%rcx);
+ vmovdqu %ymm12, (4 * 32)(%rcx);
+ vmovdqu %ymm13, (5 * 32)(%rcx);
+ vmovdqu %ymm14, (6 * 32)(%rcx);
+ vmovdqu %ymm15, (7 * 32)(%rcx);
+
+ vpsubq %ymm5, %ymm3, %ymm3; /* +17 ; +16 */
+ vpshufb %ymm6, %ymm3, %ymm8;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +19 ; +18 */
+ vpshufb %ymm6, %ymm3, %ymm9;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +21 ; +20 */
+ vpshufb %ymm6, %ymm3, %ymm10;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +23 ; +22 */
+ vpshufb %ymm6, %ymm3, %ymm11;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +25 ; +24 */
+ vpshufb %ymm6, %ymm3, %ymm12;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +27 ; +26 */
+ vpshufb %ymm6, %ymm3, %ymm13;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +29 ; +28 */
+ vpshufb %ymm6, %ymm3, %ymm14;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +31 ; +30 */
+ vpshufb %ymm6, %ymm3, %ymm15;
+ vpsubq %ymm5, %ymm3, %ymm3; /* +32 */
+ vpshufb %xmm6, %xmm3, %xmm3;
+ vmovdqu %xmm3, (%r8);
+ vmovdqu (0 * 32)(%rcx), %ymm0;
+ vmovdqu (1 * 32)(%rcx), %ymm1;
+ vmovdqu (2 * 32)(%rcx), %ymm2;
+ vmovdqu (3 * 32)(%rcx), %ymm3;
+ vmovdqu (4 * 32)(%rcx), %ymm4;
+ vmovdqu (5 * 32)(%rcx), %ymm5;
+ vmovdqu (6 * 32)(%rcx), %ymm6;
+ vmovdqu (7 * 32)(%rcx), %ymm7;
+ jmp .Lctr_carry_done;
+
+ .Lhandle_ctr_carry:
+ /* construct IVs */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm9; /* +3 ; +2 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm10; /* +5 ; +4 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm11; /* +7 ; +6 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm12; /* +9 ; +8 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm13; /* +11 ; +10 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm14; /* +13 ; +12 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm15; /* +15 ; +14 */
+ vmovdqu %ymm8, (0 * 32)(%rcx);
+ vmovdqu %ymm9, (1 * 32)(%rcx);
+ vmovdqu %ymm10, (2 * 32)(%rcx);
+ vmovdqu %ymm11, (3 * 32)(%rcx);
+ vmovdqu %ymm12, (4 * 32)(%rcx);
+ vmovdqu %ymm13, (5 * 32)(%rcx);
+ vmovdqu %ymm14, (6 * 32)(%rcx);
+ vmovdqu %ymm15, (7 * 32)(%rcx);
+
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm8; /* +17 ; +16 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm9; /* +19 ; +18 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm10; /* +21 ; +20 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm11; /* +23 ; +22 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm12; /* +25 ; +24 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm13; /* +27 ; +26 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm14; /* +29 ; +28 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vpshufb %ymm6, %ymm3, %ymm15; /* +31 ; +30 */
+ inc_le128(%ymm3, %ymm0, %ymm4);
+ vextracti128 $1, %ymm3, %xmm3;
+ vpshufb %xmm6, %xmm3, %xmm3; /* +32 */
+ vmovdqu %xmm3, (%r8);
+ vmovdqu (0 * 32)(%rcx), %ymm0;
+ vmovdqu (1 * 32)(%rcx), %ymm1;
+ vmovdqu (2 * 32)(%rcx), %ymm2;
+ vmovdqu (3 * 32)(%rcx), %ymm3;
+ vmovdqu (4 * 32)(%rcx), %ymm4;
+ vmovdqu (5 * 32)(%rcx), %ymm5;
+ vmovdqu (6 * 32)(%rcx), %ymm6;
+ vmovdqu (7 * 32)(%rcx), %ymm7;
+
+ .Lctr_carry_done:
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(__aria_aesni_avx2_ctr_gen_keystream_32way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx2_ctr_crypt_32way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: keystream
+ * %r8: iv (big endian, 128bit)
+ */
+ FRAME_BEGIN
+
+ call __aria_aesni_avx2_ctr_gen_keystream_32way;
+
+ leaq (%rsi), %r10;
+ leaq (%rdx), %r11;
+ leaq (%rcx), %rsi;
+ leaq (%rcx), %rdx;
+ leaq ARIA_CTX_enc_key(CTX), %r9;
+
+ call __aria_aesni_avx2_crypt_32way;
+
+ vpxor (0 * 32)(%r11), %ymm1, %ymm1;
+ vpxor (1 * 32)(%r11), %ymm0, %ymm0;
+ vpxor (2 * 32)(%r11), %ymm3, %ymm3;
+ vpxor (3 * 32)(%r11), %ymm2, %ymm2;
+ vpxor (4 * 32)(%r11), %ymm4, %ymm4;
+ vpxor (5 * 32)(%r11), %ymm5, %ymm5;
+ vpxor (6 * 32)(%r11), %ymm6, %ymm6;
+ vpxor (7 * 32)(%r11), %ymm7, %ymm7;
+ vpxor (8 * 32)(%r11), %ymm8, %ymm8;
+ vpxor (9 * 32)(%r11), %ymm9, %ymm9;
+ vpxor (10 * 32)(%r11), %ymm10, %ymm10;
+ vpxor (11 * 32)(%r11), %ymm11, %ymm11;
+ vpxor (12 * 32)(%r11), %ymm12, %ymm12;
+ vpxor (13 * 32)(%r11), %ymm13, %ymm13;
+ vpxor (14 * 32)(%r11), %ymm14, %ymm14;
+ vpxor (15 * 32)(%r11), %ymm15, %ymm15;
+ write_output(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %r10);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx2_ctr_crypt_32way)
+
+#ifdef CONFIG_AS_GFNI
+SYM_FUNC_START_LOCAL(__aria_aesni_avx2_gfni_crypt_32way)
+ /* input:
+ * %r9: rk
+ * %rsi: dst
+ * %rdx: src
+ * %ymm0..%ymm15: 16 byte-sliced blocks
+ */
+
+ FRAME_BEGIN
+
+ movq %rsi, %rax;
+ leaq 8 * 32(%rax), %r8;
+
+ inpack16_post(%ymm0, %ymm1, %ymm2, %ymm3,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r8);
+ aria_fo_gfni(%ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 0);
+ aria_fe_gfni(%ymm1, %ymm0, %ymm3, %ymm2,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 1);
+ aria_fo_gfni(%ymm9, %ymm8, %ymm11, %ymm10,
+ %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 2);
+ aria_fe_gfni(%ymm1, %ymm0, %ymm3, %ymm2,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 3);
+ aria_fo_gfni(%ymm9, %ymm8, %ymm11, %ymm10,
+ %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 4);
+ aria_fe_gfni(%ymm1, %ymm0, %ymm3, %ymm2,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 5);
+ aria_fo_gfni(%ymm9, %ymm8, %ymm11, %ymm10,
+ %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 6);
+ aria_fe_gfni(%ymm1, %ymm0, %ymm3, %ymm2,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 7);
+ aria_fo_gfni(%ymm9, %ymm8, %ymm11, %ymm10,
+ %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 8);
+ aria_fe_gfni(%ymm1, %ymm0, %ymm3, %ymm2,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 9);
+ aria_fo_gfni(%ymm9, %ymm8, %ymm11, %ymm10,
+ %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 10);
+ cmpl $12, ARIA_CTX_rounds(CTX);
+ jne .Laria_gfni_192;
+ aria_ff_gfni(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 11, 12);
+ jmp .Laria_gfni_end;
+.Laria_gfni_192:
+ aria_fe_gfni(%ymm1, %ymm0, %ymm3, %ymm2,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 11);
+ aria_fo_gfni(%ymm9, %ymm8, %ymm11, %ymm10,
+ %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 12);
+ cmpl $14, ARIA_CTX_rounds(CTX);
+ jne .Laria_gfni_256;
+ aria_ff_gfni(%ymm1, %ymm0, %ymm3, %ymm2,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 13, 14);
+ jmp .Laria_gfni_end;
+.Laria_gfni_256:
+ aria_fe_gfni(%ymm1, %ymm0, %ymm3, %ymm2,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 13);
+ aria_fo_gfni(%ymm9, %ymm8, %ymm11, %ymm10,
+ %ymm12, %ymm13, %ymm14, %ymm15,
+ %ymm0, %ymm1, %ymm2, %ymm3,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %rax, %r9, 14);
+ aria_ff_gfni(%ymm1, %ymm0, %ymm3, %ymm2,
+ %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11,
+ %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %r9, 15, 16);
+.Laria_gfni_end:
+ debyteslice_16x16b(%ymm8, %ymm12, %ymm1, %ymm4,
+ %ymm9, %ymm13, %ymm0, %ymm5,
+ %ymm10, %ymm14, %ymm3, %ymm6,
+ %ymm11, %ymm15, %ymm2, %ymm7,
+ (%rax), (%r8));
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(__aria_aesni_avx2_gfni_crypt_32way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx2_gfni_encrypt_32way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+
+ leaq ARIA_CTX_enc_key(CTX), %r9;
+
+ inpack16_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rdx);
+
+ call __aria_aesni_avx2_gfni_crypt_32way;
+
+ write_output(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx2_gfni_encrypt_32way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx2_gfni_decrypt_32way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+
+ leaq ARIA_CTX_dec_key(CTX), %r9;
+
+ inpack16_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rdx);
+
+ call __aria_aesni_avx2_gfni_crypt_32way;
+
+ write_output(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx2_gfni_decrypt_32way)
+
+SYM_TYPED_FUNC_START(aria_aesni_avx2_gfni_ctr_crypt_32way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: keystream
+ * %r8: iv (big endian, 128bit)
+ */
+ FRAME_BEGIN
+
+ call __aria_aesni_avx2_ctr_gen_keystream_32way
+
+ leaq (%rsi), %r10;
+ leaq (%rdx), %r11;
+ leaq (%rcx), %rsi;
+ leaq (%rcx), %rdx;
+ leaq ARIA_CTX_enc_key(CTX), %r9;
+
+ call __aria_aesni_avx2_gfni_crypt_32way;
+
+ vpxor (0 * 32)(%r11), %ymm1, %ymm1;
+ vpxor (1 * 32)(%r11), %ymm0, %ymm0;
+ vpxor (2 * 32)(%r11), %ymm3, %ymm3;
+ vpxor (3 * 32)(%r11), %ymm2, %ymm2;
+ vpxor (4 * 32)(%r11), %ymm4, %ymm4;
+ vpxor (5 * 32)(%r11), %ymm5, %ymm5;
+ vpxor (6 * 32)(%r11), %ymm6, %ymm6;
+ vpxor (7 * 32)(%r11), %ymm7, %ymm7;
+ vpxor (8 * 32)(%r11), %ymm8, %ymm8;
+ vpxor (9 * 32)(%r11), %ymm9, %ymm9;
+ vpxor (10 * 32)(%r11), %ymm10, %ymm10;
+ vpxor (11 * 32)(%r11), %ymm11, %ymm11;
+ vpxor (12 * 32)(%r11), %ymm12, %ymm12;
+ vpxor (13 * 32)(%r11), %ymm13, %ymm13;
+ vpxor (14 * 32)(%r11), %ymm14, %ymm14;
+ vpxor (15 * 32)(%r11), %ymm15, %ymm15;
+ write_output(%ymm1, %ymm0, %ymm3, %ymm2, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %r10);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_aesni_avx2_gfni_ctr_crypt_32way)
+#endif /* CONFIG_AS_GFNI */
diff --git a/arch/x86/crypto/aria-avx.h b/arch/x86/crypto/aria-avx.h
new file mode 100644
index 000000000000..6e1b2d8a31ed
--- /dev/null
+++ b/arch/x86/crypto/aria-avx.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef ASM_X86_ARIA_AVX_H
+#define ASM_X86_ARIA_AVX_H
+
+#include <linux/types.h>
+
+#define ARIA_AESNI_PARALLEL_BLOCKS 16
+#define ARIA_AESNI_PARALLEL_BLOCK_SIZE (ARIA_BLOCK_SIZE * ARIA_AESNI_PARALLEL_BLOCKS)
+
+#define ARIA_AESNI_AVX2_PARALLEL_BLOCKS 32
+#define ARIA_AESNI_AVX2_PARALLEL_BLOCK_SIZE (ARIA_BLOCK_SIZE * ARIA_AESNI_AVX2_PARALLEL_BLOCKS)
+
+#define ARIA_GFNI_AVX512_PARALLEL_BLOCKS 64
+#define ARIA_GFNI_AVX512_PARALLEL_BLOCK_SIZE (ARIA_BLOCK_SIZE * ARIA_GFNI_AVX512_PARALLEL_BLOCKS)
+
+asmlinkage void aria_aesni_avx_encrypt_16way(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void aria_aesni_avx_decrypt_16way(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void aria_aesni_avx_ctr_crypt_16way(const void *ctx, u8 *dst,
+ const u8 *src,
+ u8 *keystream, u8 *iv);
+asmlinkage void aria_aesni_avx_gfni_encrypt_16way(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void aria_aesni_avx_gfni_decrypt_16way(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void aria_aesni_avx_gfni_ctr_crypt_16way(const void *ctx, u8 *dst,
+ const u8 *src,
+ u8 *keystream, u8 *iv);
+
+asmlinkage void aria_aesni_avx2_encrypt_32way(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void aria_aesni_avx2_decrypt_32way(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void aria_aesni_avx2_ctr_crypt_32way(const void *ctx, u8 *dst,
+ const u8 *src,
+ u8 *keystream, u8 *iv);
+asmlinkage void aria_aesni_avx2_gfni_encrypt_32way(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void aria_aesni_avx2_gfni_decrypt_32way(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void aria_aesni_avx2_gfni_ctr_crypt_32way(const void *ctx, u8 *dst,
+ const u8 *src,
+ u8 *keystream, u8 *iv);
+
+struct aria_avx_ops {
+ void (*aria_encrypt_16way)(const void *ctx, u8 *dst, const u8 *src);
+ void (*aria_decrypt_16way)(const void *ctx, u8 *dst, const u8 *src);
+ void (*aria_ctr_crypt_16way)(const void *ctx, u8 *dst, const u8 *src,
+ u8 *keystream, u8 *iv);
+ void (*aria_encrypt_32way)(const void *ctx, u8 *dst, const u8 *src);
+ void (*aria_decrypt_32way)(const void *ctx, u8 *dst, const u8 *src);
+ void (*aria_ctr_crypt_32way)(const void *ctx, u8 *dst, const u8 *src,
+ u8 *keystream, u8 *iv);
+ void (*aria_encrypt_64way)(const void *ctx, u8 *dst, const u8 *src);
+ void (*aria_decrypt_64way)(const void *ctx, u8 *dst, const u8 *src);
+ void (*aria_ctr_crypt_64way)(const void *ctx, u8 *dst, const u8 *src,
+ u8 *keystream, u8 *iv);
+
+
+};
+#endif
diff --git a/arch/x86/crypto/aria-gfni-avx512-asm_64.S b/arch/x86/crypto/aria-gfni-avx512-asm_64.S
new file mode 100644
index 000000000000..860887e5d02e
--- /dev/null
+++ b/arch/x86/crypto/aria-gfni-avx512-asm_64.S
@@ -0,0 +1,971 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * ARIA Cipher 64-way parallel algorithm (AVX512)
+ *
+ * Copyright (c) 2022 Taehee Yoo <ap420073@gmail.com>
+ *
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+#include <asm/asm-offsets.h>
+#include <linux/cfi_types.h>
+
+/* register macros */
+#define CTX %rdi
+
+
+#define BV8(a0, a1, a2, a3, a4, a5, a6, a7) \
+ ( (((a0) & 1) << 0) | \
+ (((a1) & 1) << 1) | \
+ (((a2) & 1) << 2) | \
+ (((a3) & 1) << 3) | \
+ (((a4) & 1) << 4) | \
+ (((a5) & 1) << 5) | \
+ (((a6) & 1) << 6) | \
+ (((a7) & 1) << 7) )
+
+#define BM8X8(l0, l1, l2, l3, l4, l5, l6, l7) \
+ ( ((l7) << (0 * 8)) | \
+ ((l6) << (1 * 8)) | \
+ ((l5) << (2 * 8)) | \
+ ((l4) << (3 * 8)) | \
+ ((l3) << (4 * 8)) | \
+ ((l2) << (5 * 8)) | \
+ ((l1) << (6 * 8)) | \
+ ((l0) << (7 * 8)) )
+
+#define add_le128(out, in, lo_counter, hi_counter1) \
+ vpaddq lo_counter, in, out; \
+ vpcmpuq $1, lo_counter, out, %k1; \
+ kaddb %k1, %k1, %k1; \
+ vpaddq hi_counter1, out, out{%k1};
+
+#define filter_8bit(x, lo_t, hi_t, mask4bit, tmp0) \
+ vpandq x, mask4bit, tmp0; \
+ vpandqn x, mask4bit, x; \
+ vpsrld $4, x, x; \
+ \
+ vpshufb tmp0, lo_t, tmp0; \
+ vpshufb x, hi_t, x; \
+ vpxorq tmp0, x, x;
+
+#define transpose_4x4(x0, x1, x2, x3, t1, t2) \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x1, x0, x0; \
+ \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x2; \
+ \
+ vpunpckhqdq t1, x0, x1; \
+ vpunpcklqdq t1, x0, x0; \
+ \
+ vpunpckhqdq x2, t2, x3; \
+ vpunpcklqdq x2, t2, x2;
+
+#define byteslice_16x16b(a0, b0, c0, d0, \
+ a1, b1, c1, d1, \
+ a2, b2, c2, d2, \
+ a3, b3, c3, d3, \
+ st0, st1) \
+ vmovdqu64 d2, st0; \
+ vmovdqu64 d3, st1; \
+ transpose_4x4(a0, a1, a2, a3, d2, d3); \
+ transpose_4x4(b0, b1, b2, b3, d2, d3); \
+ vmovdqu64 st0, d2; \
+ vmovdqu64 st1, d3; \
+ \
+ vmovdqu64 a0, st0; \
+ vmovdqu64 a1, st1; \
+ transpose_4x4(c0, c1, c2, c3, a0, a1); \
+ transpose_4x4(d0, d1, d2, d3, a0, a1); \
+ \
+ vbroadcasti64x2 .Lshufb_16x16b(%rip), a0; \
+ vmovdqu64 st1, a1; \
+ vpshufb a0, a2, a2; \
+ vpshufb a0, a3, a3; \
+ vpshufb a0, b0, b0; \
+ vpshufb a0, b1, b1; \
+ vpshufb a0, b2, b2; \
+ vpshufb a0, b3, b3; \
+ vpshufb a0, a1, a1; \
+ vpshufb a0, c0, c0; \
+ vpshufb a0, c1, c1; \
+ vpshufb a0, c2, c2; \
+ vpshufb a0, c3, c3; \
+ vpshufb a0, d0, d0; \
+ vpshufb a0, d1, d1; \
+ vpshufb a0, d2, d2; \
+ vpshufb a0, d3, d3; \
+ vmovdqu64 d3, st1; \
+ vmovdqu64 st0, d3; \
+ vpshufb a0, d3, a0; \
+ vmovdqu64 d2, st0; \
+ \
+ transpose_4x4(a0, b0, c0, d0, d2, d3); \
+ transpose_4x4(a1, b1, c1, d1, d2, d3); \
+ vmovdqu64 st0, d2; \
+ vmovdqu64 st1, d3; \
+ \
+ vmovdqu64 b0, st0; \
+ vmovdqu64 b1, st1; \
+ transpose_4x4(a2, b2, c2, d2, b0, b1); \
+ transpose_4x4(a3, b3, c3, d3, b0, b1); \
+ vmovdqu64 st0, b0; \
+ vmovdqu64 st1, b1; \
+ /* does not adjust output bytes inside vectors */
+
+#define debyteslice_16x16b(a0, b0, c0, d0, \
+ a1, b1, c1, d1, \
+ a2, b2, c2, d2, \
+ a3, b3, c3, d3, \
+ st0, st1) \
+ vmovdqu64 d2, st0; \
+ vmovdqu64 d3, st1; \
+ transpose_4x4(a0, a1, a2, a3, d2, d3); \
+ transpose_4x4(b0, b1, b2, b3, d2, d3); \
+ vmovdqu64 st0, d2; \
+ vmovdqu64 st1, d3; \
+ \
+ vmovdqu64 a0, st0; \
+ vmovdqu64 a1, st1; \
+ transpose_4x4(c0, c1, c2, c3, a0, a1); \
+ transpose_4x4(d0, d1, d2, d3, a0, a1); \
+ \
+ vbroadcasti64x2 .Lshufb_16x16b(%rip), a0; \
+ vmovdqu64 st1, a1; \
+ vpshufb a0, a2, a2; \
+ vpshufb a0, a3, a3; \
+ vpshufb a0, b0, b0; \
+ vpshufb a0, b1, b1; \
+ vpshufb a0, b2, b2; \
+ vpshufb a0, b3, b3; \
+ vpshufb a0, a1, a1; \
+ vpshufb a0, c0, c0; \
+ vpshufb a0, c1, c1; \
+ vpshufb a0, c2, c2; \
+ vpshufb a0, c3, c3; \
+ vpshufb a0, d0, d0; \
+ vpshufb a0, d1, d1; \
+ vpshufb a0, d2, d2; \
+ vpshufb a0, d3, d3; \
+ vmovdqu64 d3, st1; \
+ vmovdqu64 st0, d3; \
+ vpshufb a0, d3, a0; \
+ vmovdqu64 d2, st0; \
+ \
+ transpose_4x4(c0, d0, a0, b0, d2, d3); \
+ transpose_4x4(c1, d1, a1, b1, d2, d3); \
+ vmovdqu64 st0, d2; \
+ vmovdqu64 st1, d3; \
+ \
+ vmovdqu64 b0, st0; \
+ vmovdqu64 b1, st1; \
+ transpose_4x4(c2, d2, a2, b2, b0, b1); \
+ transpose_4x4(c3, d3, a3, b3, b0, b1); \
+ vmovdqu64 st0, b0; \
+ vmovdqu64 st1, b1; \
+ /* does not adjust output bytes inside vectors */
+
+/* load blocks to registers and apply pre-whitening */
+#define inpack16_pre(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ rio) \
+ vmovdqu64 (0 * 64)(rio), x0; \
+ vmovdqu64 (1 * 64)(rio), x1; \
+ vmovdqu64 (2 * 64)(rio), x2; \
+ vmovdqu64 (3 * 64)(rio), x3; \
+ vmovdqu64 (4 * 64)(rio), x4; \
+ vmovdqu64 (5 * 64)(rio), x5; \
+ vmovdqu64 (6 * 64)(rio), x6; \
+ vmovdqu64 (7 * 64)(rio), x7; \
+ vmovdqu64 (8 * 64)(rio), y0; \
+ vmovdqu64 (9 * 64)(rio), y1; \
+ vmovdqu64 (10 * 64)(rio), y2; \
+ vmovdqu64 (11 * 64)(rio), y3; \
+ vmovdqu64 (12 * 64)(rio), y4; \
+ vmovdqu64 (13 * 64)(rio), y5; \
+ vmovdqu64 (14 * 64)(rio), y6; \
+ vmovdqu64 (15 * 64)(rio), y7;
+
+/* byteslice pre-whitened blocks and store to temporary memory */
+#define inpack16_post(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem_ab, mem_cd) \
+ byteslice_16x16b(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ (mem_ab), (mem_cd)); \
+ \
+ vmovdqu64 x0, 0 * 64(mem_ab); \
+ vmovdqu64 x1, 1 * 64(mem_ab); \
+ vmovdqu64 x2, 2 * 64(mem_ab); \
+ vmovdqu64 x3, 3 * 64(mem_ab); \
+ vmovdqu64 x4, 4 * 64(mem_ab); \
+ vmovdqu64 x5, 5 * 64(mem_ab); \
+ vmovdqu64 x6, 6 * 64(mem_ab); \
+ vmovdqu64 x7, 7 * 64(mem_ab); \
+ vmovdqu64 y0, 0 * 64(mem_cd); \
+ vmovdqu64 y1, 1 * 64(mem_cd); \
+ vmovdqu64 y2, 2 * 64(mem_cd); \
+ vmovdqu64 y3, 3 * 64(mem_cd); \
+ vmovdqu64 y4, 4 * 64(mem_cd); \
+ vmovdqu64 y5, 5 * 64(mem_cd); \
+ vmovdqu64 y6, 6 * 64(mem_cd); \
+ vmovdqu64 y7, 7 * 64(mem_cd);
+
+#define write_output(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ mem) \
+ vmovdqu64 x0, 0 * 64(mem); \
+ vmovdqu64 x1, 1 * 64(mem); \
+ vmovdqu64 x2, 2 * 64(mem); \
+ vmovdqu64 x3, 3 * 64(mem); \
+ vmovdqu64 x4, 4 * 64(mem); \
+ vmovdqu64 x5, 5 * 64(mem); \
+ vmovdqu64 x6, 6 * 64(mem); \
+ vmovdqu64 x7, 7 * 64(mem); \
+ vmovdqu64 y0, 8 * 64(mem); \
+ vmovdqu64 y1, 9 * 64(mem); \
+ vmovdqu64 y2, 10 * 64(mem); \
+ vmovdqu64 y3, 11 * 64(mem); \
+ vmovdqu64 y4, 12 * 64(mem); \
+ vmovdqu64 y5, 13 * 64(mem); \
+ vmovdqu64 y6, 14 * 64(mem); \
+ vmovdqu64 y7, 15 * 64(mem); \
+
+#define aria_store_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, idx) \
+ vmovdqu64 x0, ((idx + 0) * 64)(mem_tmp); \
+ vmovdqu64 x1, ((idx + 1) * 64)(mem_tmp); \
+ vmovdqu64 x2, ((idx + 2) * 64)(mem_tmp); \
+ vmovdqu64 x3, ((idx + 3) * 64)(mem_tmp); \
+ vmovdqu64 x4, ((idx + 4) * 64)(mem_tmp); \
+ vmovdqu64 x5, ((idx + 5) * 64)(mem_tmp); \
+ vmovdqu64 x6, ((idx + 6) * 64)(mem_tmp); \
+ vmovdqu64 x7, ((idx + 7) * 64)(mem_tmp);
+
+#define aria_load_state_8way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ mem_tmp, idx) \
+ vmovdqu64 ((idx + 0) * 64)(mem_tmp), x0; \
+ vmovdqu64 ((idx + 1) * 64)(mem_tmp), x1; \
+ vmovdqu64 ((idx + 2) * 64)(mem_tmp), x2; \
+ vmovdqu64 ((idx + 3) * 64)(mem_tmp), x3; \
+ vmovdqu64 ((idx + 4) * 64)(mem_tmp), x4; \
+ vmovdqu64 ((idx + 5) * 64)(mem_tmp), x5; \
+ vmovdqu64 ((idx + 6) * 64)(mem_tmp), x6; \
+ vmovdqu64 ((idx + 7) * 64)(mem_tmp), x7;
+
+#define aria_ark_16way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ t0, rk, round) \
+ /* AddRoundKey */ \
+ vpbroadcastb ((round * 16) + 3)(rk), t0; \
+ vpxorq t0, x0, x0; \
+ vpbroadcastb ((round * 16) + 2)(rk), t0; \
+ vpxorq t0, x1, x1; \
+ vpbroadcastb ((round * 16) + 1)(rk), t0; \
+ vpxorq t0, x2, x2; \
+ vpbroadcastb ((round * 16) + 0)(rk), t0; \
+ vpxorq t0, x3, x3; \
+ vpbroadcastb ((round * 16) + 7)(rk), t0; \
+ vpxorq t0, x4, x4; \
+ vpbroadcastb ((round * 16) + 6)(rk), t0; \
+ vpxorq t0, x5, x5; \
+ vpbroadcastb ((round * 16) + 5)(rk), t0; \
+ vpxorq t0, x6, x6; \
+ vpbroadcastb ((round * 16) + 4)(rk), t0; \
+ vpxorq t0, x7, x7; \
+ vpbroadcastb ((round * 16) + 11)(rk), t0; \
+ vpxorq t0, y0, y0; \
+ vpbroadcastb ((round * 16) + 10)(rk), t0; \
+ vpxorq t0, y1, y1; \
+ vpbroadcastb ((round * 16) + 9)(rk), t0; \
+ vpxorq t0, y2, y2; \
+ vpbroadcastb ((round * 16) + 8)(rk), t0; \
+ vpxorq t0, y3, y3; \
+ vpbroadcastb ((round * 16) + 15)(rk), t0; \
+ vpxorq t0, y4, y4; \
+ vpbroadcastb ((round * 16) + 14)(rk), t0; \
+ vpxorq t0, y5, y5; \
+ vpbroadcastb ((round * 16) + 13)(rk), t0; \
+ vpxorq t0, y6, y6; \
+ vpbroadcastb ((round * 16) + 12)(rk), t0; \
+ vpxorq t0, y7, y7;
+
+#define aria_sbox_8way_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ t0, t1, t2, t3, \
+ t4, t5, t6, t7) \
+ vpbroadcastq .Ltf_s2_bitmatrix(%rip), t0; \
+ vpbroadcastq .Ltf_inv_bitmatrix(%rip), t1; \
+ vpbroadcastq .Ltf_id_bitmatrix(%rip), t2; \
+ vpbroadcastq .Ltf_aff_bitmatrix(%rip), t3; \
+ vpbroadcastq .Ltf_x2_bitmatrix(%rip), t4; \
+ vgf2p8affineinvqb $(tf_s2_const), t0, x1, x1; \
+ vgf2p8affineinvqb $(tf_s2_const), t0, x5, x5; \
+ vgf2p8affineqb $(tf_inv_const), t1, x2, x2; \
+ vgf2p8affineqb $(tf_inv_const), t1, x6, x6; \
+ vgf2p8affineinvqb $0, t2, x2, x2; \
+ vgf2p8affineinvqb $0, t2, x6, x6; \
+ vgf2p8affineinvqb $(tf_aff_const), t3, x0, x0; \
+ vgf2p8affineinvqb $(tf_aff_const), t3, x4, x4; \
+ vgf2p8affineqb $(tf_x2_const), t4, x3, x3; \
+ vgf2p8affineqb $(tf_x2_const), t4, x7, x7; \
+ vgf2p8affineinvqb $0, t2, x3, x3; \
+ vgf2p8affineinvqb $0, t2, x7, x7;
+
+#define aria_sbox_16way_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ t0, t1, t2, t3, \
+ t4, t5, t6, t7) \
+ vpbroadcastq .Ltf_s2_bitmatrix(%rip), t0; \
+ vpbroadcastq .Ltf_inv_bitmatrix(%rip), t1; \
+ vpbroadcastq .Ltf_id_bitmatrix(%rip), t2; \
+ vpbroadcastq .Ltf_aff_bitmatrix(%rip), t3; \
+ vpbroadcastq .Ltf_x2_bitmatrix(%rip), t4; \
+ vgf2p8affineinvqb $(tf_s2_const), t0, x1, x1; \
+ vgf2p8affineinvqb $(tf_s2_const), t0, x5, x5; \
+ vgf2p8affineqb $(tf_inv_const), t1, x2, x2; \
+ vgf2p8affineqb $(tf_inv_const), t1, x6, x6; \
+ vgf2p8affineinvqb $0, t2, x2, x2; \
+ vgf2p8affineinvqb $0, t2, x6, x6; \
+ vgf2p8affineinvqb $(tf_aff_const), t3, x0, x0; \
+ vgf2p8affineinvqb $(tf_aff_const), t3, x4, x4; \
+ vgf2p8affineqb $(tf_x2_const), t4, x3, x3; \
+ vgf2p8affineqb $(tf_x2_const), t4, x7, x7; \
+ vgf2p8affineinvqb $0, t2, x3, x3; \
+ vgf2p8affineinvqb $0, t2, x7, x7; \
+ vgf2p8affineinvqb $(tf_s2_const), t0, y1, y1; \
+ vgf2p8affineinvqb $(tf_s2_const), t0, y5, y5; \
+ vgf2p8affineqb $(tf_inv_const), t1, y2, y2; \
+ vgf2p8affineqb $(tf_inv_const), t1, y6, y6; \
+ vgf2p8affineinvqb $0, t2, y2, y2; \
+ vgf2p8affineinvqb $0, t2, y6, y6; \
+ vgf2p8affineinvqb $(tf_aff_const), t3, y0, y0; \
+ vgf2p8affineinvqb $(tf_aff_const), t3, y4, y4; \
+ vgf2p8affineqb $(tf_x2_const), t4, y3, y3; \
+ vgf2p8affineqb $(tf_x2_const), t4, y7, y7; \
+ vgf2p8affineinvqb $0, t2, y3, y3; \
+ vgf2p8affineinvqb $0, t2, y7, y7;
+
+
+#define aria_diff_m(x0, x1, x2, x3, \
+ t0, t1, t2, t3) \
+ /* T = rotr32(X, 8); */ \
+ /* X ^= T */ \
+ vpxorq x0, x3, t0; \
+ vpxorq x1, x0, t1; \
+ vpxorq x2, x1, t2; \
+ vpxorq x3, x2, t3; \
+ /* X = T ^ rotr(X, 16); */ \
+ vpxorq t2, x0, x0; \
+ vpxorq x1, t3, t3; \
+ vpxorq t0, x2, x2; \
+ vpxorq t1, x3, x1; \
+ vmovdqu64 t3, x3;
+
+#define aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7) \
+ /* t1 ^= t2; */ \
+ vpxorq y0, x4, x4; \
+ vpxorq y1, x5, x5; \
+ vpxorq y2, x6, x6; \
+ vpxorq y3, x7, x7; \
+ \
+ /* t2 ^= t3; */ \
+ vpxorq y4, y0, y0; \
+ vpxorq y5, y1, y1; \
+ vpxorq y6, y2, y2; \
+ vpxorq y7, y3, y3; \
+ \
+ /* t0 ^= t1; */ \
+ vpxorq x4, x0, x0; \
+ vpxorq x5, x1, x1; \
+ vpxorq x6, x2, x2; \
+ vpxorq x7, x3, x3; \
+ \
+ /* t3 ^= t1; */ \
+ vpxorq x4, y4, y4; \
+ vpxorq x5, y5, y5; \
+ vpxorq x6, y6, y6; \
+ vpxorq x7, y7, y7; \
+ \
+ /* t2 ^= t0; */ \
+ vpxorq x0, y0, y0; \
+ vpxorq x1, y1, y1; \
+ vpxorq x2, y2, y2; \
+ vpxorq x3, y3, y3; \
+ \
+ /* t1 ^= t2; */ \
+ vpxorq y0, x4, x4; \
+ vpxorq y1, x5, x5; \
+ vpxorq y2, x6, x6; \
+ vpxorq y3, x7, x7;
+
+#define aria_fe_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ z0, z1, z2, z3, \
+ z4, z5, z6, z7, \
+ mem_tmp, rk, round) \
+ aria_ark_16way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y1, y2, y3, y4, y5, y6, y7, \
+ z0, rk, round); \
+ \
+ aria_sbox_16way_gfni(x2, x3, x0, x1, \
+ x6, x7, x4, x5, \
+ y2, y3, y0, y1, \
+ y6, y7, y4, y5, \
+ z0, z1, z2, z3, \
+ z4, z5, z6, z7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, z0, z1, z2, z3); \
+ aria_diff_m(x4, x5, x6, x7, z0, z1, z2, z3); \
+ aria_diff_m(y0, y1, y2, y3, z0, z1, z2, z3); \
+ aria_diff_m(y4, y5, y6, y7, z0, z1, z2, z3); \
+ aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ /* aria_diff_byte() \
+ * T3 = ABCD -> BADC \
+ * T3 = y4, y5, y6, y7 -> y5, y4, y7, y6 \
+ * T0 = ABCD -> CDAB \
+ * T0 = x0, x1, x2, x3 -> x2, x3, x0, x1 \
+ * T1 = ABCD -> DCBA \
+ * T1 = x4, x5, x6, x7 -> x7, x6, x5, x4 \
+ */ \
+ aria_diff_word(x2, x3, x0, x1, \
+ x7, x6, x5, x4, \
+ y0, y1, y2, y3, \
+ y5, y4, y7, y6); \
+
+
+#define aria_fo_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ z0, z1, z2, z3, \
+ z4, z5, z6, z7, \
+ mem_tmp, rk, round) \
+ aria_ark_16way(x0, x1, x2, x3, x4, x5, x6, x7, \
+ y0, y1, y2, y3, y4, y5, y6, y7, \
+ z0, rk, round); \
+ \
+ aria_sbox_16way_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ z0, z1, z2, z3, \
+ z4, z5, z6, z7); \
+ \
+ aria_diff_m(x0, x1, x2, x3, z0, z1, z2, z3); \
+ aria_diff_m(x4, x5, x6, x7, z0, z1, z2, z3); \
+ aria_diff_m(y0, y1, y2, y3, z0, z1, z2, z3); \
+ aria_diff_m(y4, y5, y6, y7, z0, z1, z2, z3); \
+ aria_diff_word(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7); \
+ /* aria_diff_byte() \
+ * T1 = ABCD -> BADC \
+ * T1 = x4, x5, x6, x7 -> x5, x4, x7, x6 \
+ * T2 = ABCD -> CDAB \
+ * T2 = y0, y1, y2, y3, -> y2, y3, y0, y1 \
+ * T3 = ABCD -> DCBA \
+ * T3 = y4, y5, y6, y7 -> y7, y6, y5, y4 \
+ */ \
+ aria_diff_word(x0, x1, x2, x3, \
+ x5, x4, x7, x6, \
+ y2, y3, y0, y1, \
+ y7, y6, y5, y4);
+
+#define aria_ff_gfni(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ z0, z1, z2, z3, \
+ z4, z5, z6, z7, \
+ mem_tmp, rk, round, last_round) \
+ aria_ark_16way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ z0, rk, round); \
+ aria_sbox_16way_gfni(x2, x3, x0, x1, \
+ x6, x7, x4, x5, \
+ y2, y3, y0, y1, \
+ y6, y7, y4, y5, \
+ z0, z1, z2, z3, \
+ z4, z5, z6, z7); \
+ aria_ark_16way(x0, x1, x2, x3, \
+ x4, x5, x6, x7, \
+ y0, y1, y2, y3, \
+ y4, y5, y6, y7, \
+ z0, rk, last_round);
+
+
+.section .rodata.cst64, "aM", @progbits, 64
+.align 64
+.Lcounter0123_lo:
+ .quad 0, 0
+ .quad 1, 0
+ .quad 2, 0
+ .quad 3, 0
+
+.section .rodata.cst32.shufb_16x16b, "aM", @progbits, 32
+.align 32
+#define SHUFB_BYTES(idx) \
+ 0 + (idx), 4 + (idx), 8 + (idx), 12 + (idx)
+.Lshufb_16x16b:
+ .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3)
+ .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3)
+
+.section .rodata.cst16, "aM", @progbits, 16
+.align 16
+
+.Lcounter4444_lo:
+ .quad 4, 0
+.Lcounter8888_lo:
+ .quad 8, 0
+.Lcounter16161616_lo:
+ .quad 16, 0
+.Lcounter1111_hi:
+ .quad 0, 1
+
+/* For CTR-mode IV byteswap */
+.Lbswap128_mask:
+ .byte 0x0f, 0x0e, 0x0d, 0x0c, 0x0b, 0x0a, 0x09, 0x08
+ .byte 0x07, 0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00
+
+.section .rodata.cst8, "aM", @progbits, 8
+.align 8
+/* AES affine: */
+#define tf_aff_const BV8(1, 1, 0, 0, 0, 1, 1, 0)
+.Ltf_aff_bitmatrix:
+ .quad BM8X8(BV8(1, 0, 0, 0, 1, 1, 1, 1),
+ BV8(1, 1, 0, 0, 0, 1, 1, 1),
+ BV8(1, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 1, 0, 0, 0, 1),
+ BV8(1, 1, 1, 1, 1, 0, 0, 0),
+ BV8(0, 1, 1, 1, 1, 1, 0, 0),
+ BV8(0, 0, 1, 1, 1, 1, 1, 0),
+ BV8(0, 0, 0, 1, 1, 1, 1, 1))
+
+/* AES inverse affine: */
+#define tf_inv_const BV8(1, 0, 1, 0, 0, 0, 0, 0)
+.Ltf_inv_bitmatrix:
+ .quad BM8X8(BV8(0, 0, 1, 0, 0, 1, 0, 1),
+ BV8(1, 0, 0, 1, 0, 0, 1, 0),
+ BV8(0, 1, 0, 0, 1, 0, 0, 1),
+ BV8(1, 0, 1, 0, 0, 1, 0, 0),
+ BV8(0, 1, 0, 1, 0, 0, 1, 0),
+ BV8(0, 0, 1, 0, 1, 0, 0, 1),
+ BV8(1, 0, 0, 1, 0, 1, 0, 0),
+ BV8(0, 1, 0, 0, 1, 0, 1, 0))
+
+/* S2: */
+#define tf_s2_const BV8(0, 1, 0, 0, 0, 1, 1, 1)
+.Ltf_s2_bitmatrix:
+ .quad BM8X8(BV8(0, 1, 0, 1, 0, 1, 1, 1),
+ BV8(0, 0, 1, 1, 1, 1, 1, 1),
+ BV8(1, 1, 1, 0, 1, 1, 0, 1),
+ BV8(1, 1, 0, 0, 0, 0, 1, 1),
+ BV8(0, 1, 0, 0, 0, 0, 1, 1),
+ BV8(1, 1, 0, 0, 1, 1, 1, 0),
+ BV8(0, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 1, 0, 1, 1, 0))
+
+/* X2: */
+#define tf_x2_const BV8(0, 0, 1, 1, 0, 1, 0, 0)
+.Ltf_x2_bitmatrix:
+ .quad BM8X8(BV8(0, 0, 0, 1, 1, 0, 0, 0),
+ BV8(0, 0, 1, 0, 0, 1, 1, 0),
+ BV8(0, 0, 0, 0, 1, 0, 1, 0),
+ BV8(1, 1, 1, 0, 0, 0, 1, 1),
+ BV8(1, 1, 1, 0, 1, 1, 0, 0),
+ BV8(0, 1, 1, 0, 1, 0, 1, 1),
+ BV8(1, 0, 1, 1, 1, 1, 0, 1),
+ BV8(1, 0, 0, 1, 0, 0, 1, 1))
+
+/* Identity matrix: */
+.Ltf_id_bitmatrix:
+ .quad BM8X8(BV8(1, 0, 0, 0, 0, 0, 0, 0),
+ BV8(0, 1, 0, 0, 0, 0, 0, 0),
+ BV8(0, 0, 1, 0, 0, 0, 0, 0),
+ BV8(0, 0, 0, 1, 0, 0, 0, 0),
+ BV8(0, 0, 0, 0, 1, 0, 0, 0),
+ BV8(0, 0, 0, 0, 0, 1, 0, 0),
+ BV8(0, 0, 0, 0, 0, 0, 1, 0),
+ BV8(0, 0, 0, 0, 0, 0, 0, 1))
+
+.text
+SYM_FUNC_START_LOCAL(__aria_gfni_avx512_crypt_64way)
+ /* input:
+ * %r9: rk
+ * %rsi: dst
+ * %rdx: src
+ * %zmm0..%zmm15: byte-sliced blocks
+ */
+
+ FRAME_BEGIN
+
+ movq %rsi, %rax;
+ leaq 8 * 64(%rax), %r8;
+
+ inpack16_post(%zmm0, %zmm1, %zmm2, %zmm3,
+ %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11,
+ %zmm12, %zmm13, %zmm14,
+ %zmm15, %rax, %r8);
+ aria_fo_gfni(%zmm0, %zmm1, %zmm2, %zmm3,
+ %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 0);
+ aria_fe_gfni(%zmm3, %zmm2, %zmm1, %zmm0,
+ %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 1);
+ aria_fo_gfni(%zmm0, %zmm1, %zmm2, %zmm3,
+ %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 2);
+ aria_fe_gfni(%zmm3, %zmm2, %zmm1, %zmm0,
+ %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 3);
+ aria_fo_gfni(%zmm0, %zmm1, %zmm2, %zmm3,
+ %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 4);
+ aria_fe_gfni(%zmm3, %zmm2, %zmm1, %zmm0,
+ %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 5);
+ aria_fo_gfni(%zmm0, %zmm1, %zmm2, %zmm3,
+ %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 6);
+ aria_fe_gfni(%zmm3, %zmm2, %zmm1, %zmm0,
+ %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 7);
+ aria_fo_gfni(%zmm0, %zmm1, %zmm2, %zmm3,
+ %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 8);
+ aria_fe_gfni(%zmm3, %zmm2, %zmm1, %zmm0,
+ %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 9);
+ aria_fo_gfni(%zmm0, %zmm1, %zmm2, %zmm3,
+ %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 10);
+ cmpl $12, ARIA_CTX_rounds(CTX);
+ jne .Laria_gfni_192;
+ aria_ff_gfni(%zmm3, %zmm2, %zmm1, %zmm0,
+ %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 11, 12);
+ jmp .Laria_gfni_end;
+.Laria_gfni_192:
+ aria_fe_gfni(%zmm3, %zmm2, %zmm1, %zmm0,
+ %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 11);
+ aria_fo_gfni(%zmm0, %zmm1, %zmm2, %zmm3,
+ %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 12);
+ cmpl $14, ARIA_CTX_rounds(CTX);
+ jne .Laria_gfni_256;
+ aria_ff_gfni(%zmm3, %zmm2, %zmm1, %zmm0,
+ %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 13, 14);
+ jmp .Laria_gfni_end;
+.Laria_gfni_256:
+ aria_fe_gfni(%zmm3, %zmm2, %zmm1, %zmm0,
+ %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 13);
+ aria_fo_gfni(%zmm0, %zmm1, %zmm2, %zmm3,
+ %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 14);
+ aria_ff_gfni(%zmm3, %zmm2, %zmm1, %zmm0,
+ %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10,
+ %zmm12, %zmm13, %zmm14, %zmm15,
+ %zmm24, %zmm25, %zmm26, %zmm27,
+ %zmm28, %zmm29, %zmm30, %zmm31,
+ %rax, %r9, 15, 16);
+.Laria_gfni_end:
+ debyteslice_16x16b(%zmm9, %zmm12, %zmm3, %zmm6,
+ %zmm8, %zmm13, %zmm2, %zmm7,
+ %zmm11, %zmm14, %zmm1, %zmm4,
+ %zmm10, %zmm15, %zmm0, %zmm5,
+ (%rax), (%r8));
+ FRAME_END
+ RET;
+SYM_FUNC_END(__aria_gfni_avx512_crypt_64way)
+
+SYM_TYPED_FUNC_START(aria_gfni_avx512_encrypt_64way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+
+ leaq ARIA_CTX_enc_key(CTX), %r9;
+
+ inpack16_pre(%zmm0, %zmm1, %zmm2, %zmm3, %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11, %zmm12, %zmm13, %zmm14,
+ %zmm15, %rdx);
+
+ call __aria_gfni_avx512_crypt_64way;
+
+ write_output(%zmm3, %zmm2, %zmm1, %zmm0, %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10, %zmm12, %zmm13, %zmm14,
+ %zmm15, %rax);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_gfni_avx512_encrypt_64way)
+
+SYM_TYPED_FUNC_START(aria_gfni_avx512_decrypt_64way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+
+ leaq ARIA_CTX_dec_key(CTX), %r9;
+
+ inpack16_pre(%zmm0, %zmm1, %zmm2, %zmm3, %zmm4, %zmm5, %zmm6, %zmm7,
+ %zmm8, %zmm9, %zmm10, %zmm11, %zmm12, %zmm13, %zmm14,
+ %zmm15, %rdx);
+
+ call __aria_gfni_avx512_crypt_64way;
+
+ write_output(%zmm3, %zmm2, %zmm1, %zmm0, %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10, %zmm12, %zmm13, %zmm14,
+ %zmm15, %rax);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_gfni_avx512_decrypt_64way)
+
+SYM_FUNC_START_LOCAL(__aria_gfni_avx512_ctr_gen_keystream_64way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: keystream
+ * %r8: iv (big endian, 128bit)
+ */
+
+ FRAME_BEGIN
+
+ vbroadcasti64x2 .Lbswap128_mask (%rip), %zmm19;
+ vmovdqa64 .Lcounter0123_lo (%rip), %zmm21;
+ vbroadcasti64x2 .Lcounter4444_lo (%rip), %zmm22;
+ vbroadcasti64x2 .Lcounter8888_lo (%rip), %zmm23;
+ vbroadcasti64x2 .Lcounter16161616_lo (%rip), %zmm24;
+ vbroadcasti64x2 .Lcounter1111_hi (%rip), %zmm25;
+
+ /* load IV and byteswap */
+ movq 8(%r8), %r11;
+ movq (%r8), %r10;
+ bswapq %r11;
+ bswapq %r10;
+ vbroadcasti64x2 (%r8), %zmm20;
+ vpshufb %zmm19, %zmm20, %zmm20;
+
+ /* check need for handling 64-bit overflow and carry */
+ cmpq $(0xffffffffffffffff - 64), %r11;
+ ja .Lload_ctr_carry;
+
+ /* construct IVs */
+ vpaddq %zmm21, %zmm20, %zmm0; /* +0:+1:+2:+3 */
+ vpaddq %zmm22, %zmm0, %zmm1; /* +4:+5:+6:+7 */
+ vpaddq %zmm23, %zmm0, %zmm2; /* +8:+9:+10:+11 */
+ vpaddq %zmm23, %zmm1, %zmm3; /* +12:+13:+14:+15 */
+ vpaddq %zmm24, %zmm0, %zmm4; /* +16... */
+ vpaddq %zmm24, %zmm1, %zmm5; /* +20... */
+ vpaddq %zmm24, %zmm2, %zmm6; /* +24... */
+ vpaddq %zmm24, %zmm3, %zmm7; /* +28... */
+ vpaddq %zmm24, %zmm4, %zmm8; /* +32... */
+ vpaddq %zmm24, %zmm5, %zmm9; /* +36... */
+ vpaddq %zmm24, %zmm6, %zmm10; /* +40... */
+ vpaddq %zmm24, %zmm7, %zmm11; /* +44... */
+ vpaddq %zmm24, %zmm8, %zmm12; /* +48... */
+ vpaddq %zmm24, %zmm9, %zmm13; /* +52... */
+ vpaddq %zmm24, %zmm10, %zmm14; /* +56... */
+ vpaddq %zmm24, %zmm11, %zmm15; /* +60... */
+ jmp .Lload_ctr_done;
+
+.Lload_ctr_carry:
+ /* construct IVs */
+ add_le128(%zmm0, %zmm20, %zmm21, %zmm25); /* +0:+1:+2:+3 */
+ add_le128(%zmm1, %zmm0, %zmm22, %zmm25); /* +4:+5:+6:+7 */
+ add_le128(%zmm2, %zmm0, %zmm23, %zmm25); /* +8:+9:+10:+11 */
+ add_le128(%zmm3, %zmm1, %zmm23, %zmm25); /* +12:+13:+14:+15 */
+ add_le128(%zmm4, %zmm0, %zmm24, %zmm25); /* +16... */
+ add_le128(%zmm5, %zmm1, %zmm24, %zmm25); /* +20... */
+ add_le128(%zmm6, %zmm2, %zmm24, %zmm25); /* +24... */
+ add_le128(%zmm7, %zmm3, %zmm24, %zmm25); /* +28... */
+ add_le128(%zmm8, %zmm4, %zmm24, %zmm25); /* +32... */
+ add_le128(%zmm9, %zmm5, %zmm24, %zmm25); /* +36... */
+ add_le128(%zmm10, %zmm6, %zmm24, %zmm25); /* +40... */
+ add_le128(%zmm11, %zmm7, %zmm24, %zmm25); /* +44... */
+ add_le128(%zmm12, %zmm8, %zmm24, %zmm25); /* +48... */
+ add_le128(%zmm13, %zmm9, %zmm24, %zmm25); /* +52... */
+ add_le128(%zmm14, %zmm10, %zmm24, %zmm25); /* +56... */
+ add_le128(%zmm15, %zmm11, %zmm24, %zmm25); /* +60... */
+
+.Lload_ctr_done:
+ /* Byte-swap IVs and update counter. */
+ addq $64, %r11;
+ adcq $0, %r10;
+ vpshufb %zmm19, %zmm15, %zmm15;
+ vpshufb %zmm19, %zmm14, %zmm14;
+ vpshufb %zmm19, %zmm13, %zmm13;
+ vpshufb %zmm19, %zmm12, %zmm12;
+ vpshufb %zmm19, %zmm11, %zmm11;
+ vpshufb %zmm19, %zmm10, %zmm10;
+ vpshufb %zmm19, %zmm9, %zmm9;
+ vpshufb %zmm19, %zmm8, %zmm8;
+ bswapq %r11;
+ bswapq %r10;
+ vpshufb %zmm19, %zmm7, %zmm7;
+ vpshufb %zmm19, %zmm6, %zmm6;
+ vpshufb %zmm19, %zmm5, %zmm5;
+ vpshufb %zmm19, %zmm4, %zmm4;
+ vpshufb %zmm19, %zmm3, %zmm3;
+ vpshufb %zmm19, %zmm2, %zmm2;
+ vpshufb %zmm19, %zmm1, %zmm1;
+ vpshufb %zmm19, %zmm0, %zmm0;
+ movq %r11, 8(%r8);
+ movq %r10, (%r8);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(__aria_gfni_avx512_ctr_gen_keystream_64way)
+
+SYM_TYPED_FUNC_START(aria_gfni_avx512_ctr_crypt_64way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: keystream
+ * %r8: iv (big endian, 128bit)
+ */
+ FRAME_BEGIN
+
+ call __aria_gfni_avx512_ctr_gen_keystream_64way
+
+ leaq (%rsi), %r10;
+ leaq (%rdx), %r11;
+ leaq (%rcx), %rsi;
+ leaq (%rcx), %rdx;
+ leaq ARIA_CTX_enc_key(CTX), %r9;
+
+ call __aria_gfni_avx512_crypt_64way;
+
+ vpxorq (0 * 64)(%r11), %zmm3, %zmm3;
+ vpxorq (1 * 64)(%r11), %zmm2, %zmm2;
+ vpxorq (2 * 64)(%r11), %zmm1, %zmm1;
+ vpxorq (3 * 64)(%r11), %zmm0, %zmm0;
+ vpxorq (4 * 64)(%r11), %zmm6, %zmm6;
+ vpxorq (5 * 64)(%r11), %zmm7, %zmm7;
+ vpxorq (6 * 64)(%r11), %zmm4, %zmm4;
+ vpxorq (7 * 64)(%r11), %zmm5, %zmm5;
+ vpxorq (8 * 64)(%r11), %zmm9, %zmm9;
+ vpxorq (9 * 64)(%r11), %zmm8, %zmm8;
+ vpxorq (10 * 64)(%r11), %zmm11, %zmm11;
+ vpxorq (11 * 64)(%r11), %zmm10, %zmm10;
+ vpxorq (12 * 64)(%r11), %zmm12, %zmm12;
+ vpxorq (13 * 64)(%r11), %zmm13, %zmm13;
+ vpxorq (14 * 64)(%r11), %zmm14, %zmm14;
+ vpxorq (15 * 64)(%r11), %zmm15, %zmm15;
+ write_output(%zmm3, %zmm2, %zmm1, %zmm0, %zmm6, %zmm7, %zmm4, %zmm5,
+ %zmm9, %zmm8, %zmm11, %zmm10, %zmm12, %zmm13, %zmm14,
+ %zmm15, %r10);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(aria_gfni_avx512_ctr_crypt_64way)
diff --git a/arch/x86/crypto/aria_aesni_avx2_glue.c b/arch/x86/crypto/aria_aesni_avx2_glue.c
new file mode 100644
index 000000000000..87a11804fc77
--- /dev/null
+++ b/arch/x86/crypto/aria_aesni_avx2_glue.c
@@ -0,0 +1,254 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Glue Code for the AVX2/AES-NI/GFNI assembler implementation of the ARIA Cipher
+ *
+ * Copyright (c) 2022 Taehee Yoo <ap420073@gmail.com>
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/simd.h>
+#include <crypto/aria.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include "ecb_cbc_helpers.h"
+#include "aria-avx.h"
+
+asmlinkage void aria_aesni_avx2_encrypt_32way(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(aria_aesni_avx2_encrypt_32way);
+asmlinkage void aria_aesni_avx2_decrypt_32way(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(aria_aesni_avx2_decrypt_32way);
+asmlinkage void aria_aesni_avx2_ctr_crypt_32way(const void *ctx, u8 *dst,
+ const u8 *src,
+ u8 *keystream, u8 *iv);
+EXPORT_SYMBOL_GPL(aria_aesni_avx2_ctr_crypt_32way);
+#ifdef CONFIG_AS_GFNI
+asmlinkage void aria_aesni_avx2_gfni_encrypt_32way(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(aria_aesni_avx2_gfni_encrypt_32way);
+asmlinkage void aria_aesni_avx2_gfni_decrypt_32way(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(aria_aesni_avx2_gfni_decrypt_32way);
+asmlinkage void aria_aesni_avx2_gfni_ctr_crypt_32way(const void *ctx, u8 *dst,
+ const u8 *src,
+ u8 *keystream, u8 *iv);
+EXPORT_SYMBOL_GPL(aria_aesni_avx2_gfni_ctr_crypt_32way);
+#endif /* CONFIG_AS_GFNI */
+
+static struct aria_avx_ops aria_ops;
+
+struct aria_avx2_request_ctx {
+ u8 keystream[ARIA_AESNI_AVX2_PARALLEL_BLOCK_SIZE];
+};
+
+static int ecb_do_encrypt(struct skcipher_request *req, const u32 *rkey)
+{
+ ECB_WALK_START(req, ARIA_BLOCK_SIZE, ARIA_AESNI_PARALLEL_BLOCKS);
+ ECB_BLOCK(ARIA_AESNI_AVX2_PARALLEL_BLOCKS, aria_ops.aria_encrypt_32way);
+ ECB_BLOCK(ARIA_AESNI_PARALLEL_BLOCKS, aria_ops.aria_encrypt_16way);
+ ECB_BLOCK(1, aria_encrypt);
+ ECB_WALK_END();
+}
+
+static int ecb_do_decrypt(struct skcipher_request *req, const u32 *rkey)
+{
+ ECB_WALK_START(req, ARIA_BLOCK_SIZE, ARIA_AESNI_PARALLEL_BLOCKS);
+ ECB_BLOCK(ARIA_AESNI_AVX2_PARALLEL_BLOCKS, aria_ops.aria_decrypt_32way);
+ ECB_BLOCK(ARIA_AESNI_PARALLEL_BLOCKS, aria_ops.aria_decrypt_16way);
+ ECB_BLOCK(1, aria_decrypt);
+ ECB_WALK_END();
+}
+
+static int aria_avx2_ecb_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aria_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return ecb_do_encrypt(req, ctx->enc_key[0]);
+}
+
+static int aria_avx2_ecb_decrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aria_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return ecb_do_decrypt(req, ctx->dec_key[0]);
+}
+
+static int aria_avx2_set_key(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ return aria_set_key(&tfm->base, key, keylen);
+}
+
+static int aria_avx2_ctr_encrypt(struct skcipher_request *req)
+{
+ struct aria_avx2_request_ctx *req_ctx = skcipher_request_ctx(req);
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aria_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((nbytes = walk.nbytes) > 0) {
+ const u8 *src = walk.src.virt.addr;
+ u8 *dst = walk.dst.virt.addr;
+
+ while (nbytes >= ARIA_AESNI_AVX2_PARALLEL_BLOCK_SIZE) {
+ kernel_fpu_begin();
+ aria_ops.aria_ctr_crypt_32way(ctx, dst, src,
+ &req_ctx->keystream[0],
+ walk.iv);
+ kernel_fpu_end();
+ dst += ARIA_AESNI_AVX2_PARALLEL_BLOCK_SIZE;
+ src += ARIA_AESNI_AVX2_PARALLEL_BLOCK_SIZE;
+ nbytes -= ARIA_AESNI_AVX2_PARALLEL_BLOCK_SIZE;
+ }
+
+ while (nbytes >= ARIA_AESNI_PARALLEL_BLOCK_SIZE) {
+ kernel_fpu_begin();
+ aria_ops.aria_ctr_crypt_16way(ctx, dst, src,
+ &req_ctx->keystream[0],
+ walk.iv);
+ kernel_fpu_end();
+ dst += ARIA_AESNI_PARALLEL_BLOCK_SIZE;
+ src += ARIA_AESNI_PARALLEL_BLOCK_SIZE;
+ nbytes -= ARIA_AESNI_PARALLEL_BLOCK_SIZE;
+ }
+
+ while (nbytes >= ARIA_BLOCK_SIZE) {
+ memcpy(&req_ctx->keystream[0], walk.iv, ARIA_BLOCK_SIZE);
+ crypto_inc(walk.iv, ARIA_BLOCK_SIZE);
+
+ aria_encrypt(ctx, &req_ctx->keystream[0],
+ &req_ctx->keystream[0]);
+
+ crypto_xor_cpy(dst, src, &req_ctx->keystream[0],
+ ARIA_BLOCK_SIZE);
+ dst += ARIA_BLOCK_SIZE;
+ src += ARIA_BLOCK_SIZE;
+ nbytes -= ARIA_BLOCK_SIZE;
+ }
+
+ if (walk.nbytes == walk.total && nbytes > 0) {
+ memcpy(&req_ctx->keystream[0], walk.iv,
+ ARIA_BLOCK_SIZE);
+ crypto_inc(walk.iv, ARIA_BLOCK_SIZE);
+
+ aria_encrypt(ctx, &req_ctx->keystream[0],
+ &req_ctx->keystream[0]);
+
+ crypto_xor_cpy(dst, src, &req_ctx->keystream[0],
+ nbytes);
+ dst += nbytes;
+ src += nbytes;
+ nbytes = 0;
+ }
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+
+static int aria_avx2_init_tfm(struct crypto_skcipher *tfm)
+{
+ crypto_skcipher_set_reqsize(tfm, sizeof(struct aria_avx2_request_ctx));
+
+ return 0;
+}
+
+static struct skcipher_alg aria_algs[] = {
+ {
+ .base.cra_name = "__ecb(aria)",
+ .base.cra_driver_name = "__ecb-aria-avx2",
+ .base.cra_priority = 500,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = ARIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct aria_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = ARIA_MIN_KEY_SIZE,
+ .max_keysize = ARIA_MAX_KEY_SIZE,
+ .setkey = aria_avx2_set_key,
+ .encrypt = aria_avx2_ecb_encrypt,
+ .decrypt = aria_avx2_ecb_decrypt,
+ }, {
+ .base.cra_name = "__ctr(aria)",
+ .base.cra_driver_name = "__ctr-aria-avx2",
+ .base.cra_priority = 500,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL |
+ CRYPTO_ALG_SKCIPHER_REQSIZE_LARGE,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct aria_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = ARIA_MIN_KEY_SIZE,
+ .max_keysize = ARIA_MAX_KEY_SIZE,
+ .ivsize = ARIA_BLOCK_SIZE,
+ .chunksize = ARIA_BLOCK_SIZE,
+ .setkey = aria_avx2_set_key,
+ .encrypt = aria_avx2_ctr_encrypt,
+ .decrypt = aria_avx2_ctr_encrypt,
+ .init = aria_avx2_init_tfm,
+ }
+};
+
+static struct simd_skcipher_alg *aria_simd_algs[ARRAY_SIZE(aria_algs)];
+
+static int __init aria_avx2_init(void)
+{
+ const char *feature_name;
+
+ if (!boot_cpu_has(X86_FEATURE_AVX) ||
+ !boot_cpu_has(X86_FEATURE_AVX2) ||
+ !boot_cpu_has(X86_FEATURE_AES) ||
+ !boot_cpu_has(X86_FEATURE_OSXSAVE)) {
+ pr_info("AVX2 or AES-NI instructions are not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ if (boot_cpu_has(X86_FEATURE_GFNI) && IS_ENABLED(CONFIG_AS_GFNI)) {
+ aria_ops.aria_encrypt_16way = aria_aesni_avx_gfni_encrypt_16way;
+ aria_ops.aria_decrypt_16way = aria_aesni_avx_gfni_decrypt_16way;
+ aria_ops.aria_ctr_crypt_16way = aria_aesni_avx_gfni_ctr_crypt_16way;
+ aria_ops.aria_encrypt_32way = aria_aesni_avx2_gfni_encrypt_32way;
+ aria_ops.aria_decrypt_32way = aria_aesni_avx2_gfni_decrypt_32way;
+ aria_ops.aria_ctr_crypt_32way = aria_aesni_avx2_gfni_ctr_crypt_32way;
+ } else {
+ aria_ops.aria_encrypt_16way = aria_aesni_avx_encrypt_16way;
+ aria_ops.aria_decrypt_16way = aria_aesni_avx_decrypt_16way;
+ aria_ops.aria_ctr_crypt_16way = aria_aesni_avx_ctr_crypt_16way;
+ aria_ops.aria_encrypt_32way = aria_aesni_avx2_encrypt_32way;
+ aria_ops.aria_decrypt_32way = aria_aesni_avx2_decrypt_32way;
+ aria_ops.aria_ctr_crypt_32way = aria_aesni_avx2_ctr_crypt_32way;
+ }
+
+ return simd_register_skciphers_compat(aria_algs,
+ ARRAY_SIZE(aria_algs),
+ aria_simd_algs);
+}
+
+static void __exit aria_avx2_exit(void)
+{
+ simd_unregister_skciphers(aria_algs, ARRAY_SIZE(aria_algs),
+ aria_simd_algs);
+}
+
+module_init(aria_avx2_init);
+module_exit(aria_avx2_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Taehee Yoo <ap420073@gmail.com>");
+MODULE_DESCRIPTION("ARIA Cipher Algorithm, AVX2/AES-NI/GFNI optimized");
+MODULE_ALIAS_CRYPTO("aria");
+MODULE_ALIAS_CRYPTO("aria-aesni-avx2");
diff --git a/arch/x86/crypto/aria_aesni_avx_glue.c b/arch/x86/crypto/aria_aesni_avx_glue.c
new file mode 100644
index 000000000000..4e1516b76669
--- /dev/null
+++ b/arch/x86/crypto/aria_aesni_avx_glue.c
@@ -0,0 +1,234 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Glue Code for the AVX/AES-NI/GFNI assembler implementation of the ARIA Cipher
+ *
+ * Copyright (c) 2022 Taehee Yoo <ap420073@gmail.com>
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/simd.h>
+#include <crypto/aria.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include "ecb_cbc_helpers.h"
+#include "aria-avx.h"
+
+asmlinkage void aria_aesni_avx_encrypt_16way(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(aria_aesni_avx_encrypt_16way);
+asmlinkage void aria_aesni_avx_decrypt_16way(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(aria_aesni_avx_decrypt_16way);
+asmlinkage void aria_aesni_avx_ctr_crypt_16way(const void *ctx, u8 *dst,
+ const u8 *src,
+ u8 *keystream, u8 *iv);
+EXPORT_SYMBOL_GPL(aria_aesni_avx_ctr_crypt_16way);
+#ifdef CONFIG_AS_GFNI
+asmlinkage void aria_aesni_avx_gfni_encrypt_16way(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(aria_aesni_avx_gfni_encrypt_16way);
+asmlinkage void aria_aesni_avx_gfni_decrypt_16way(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(aria_aesni_avx_gfni_decrypt_16way);
+asmlinkage void aria_aesni_avx_gfni_ctr_crypt_16way(const void *ctx, u8 *dst,
+ const u8 *src,
+ u8 *keystream, u8 *iv);
+EXPORT_SYMBOL_GPL(aria_aesni_avx_gfni_ctr_crypt_16way);
+#endif /* CONFIG_AS_GFNI */
+
+static struct aria_avx_ops aria_ops;
+
+struct aria_avx_request_ctx {
+ u8 keystream[ARIA_AESNI_PARALLEL_BLOCK_SIZE];
+};
+
+static int ecb_do_encrypt(struct skcipher_request *req, const u32 *rkey)
+{
+ ECB_WALK_START(req, ARIA_BLOCK_SIZE, ARIA_AESNI_PARALLEL_BLOCKS);
+ ECB_BLOCK(ARIA_AESNI_PARALLEL_BLOCKS, aria_ops.aria_encrypt_16way);
+ ECB_BLOCK(1, aria_encrypt);
+ ECB_WALK_END();
+}
+
+static int ecb_do_decrypt(struct skcipher_request *req, const u32 *rkey)
+{
+ ECB_WALK_START(req, ARIA_BLOCK_SIZE, ARIA_AESNI_PARALLEL_BLOCKS);
+ ECB_BLOCK(ARIA_AESNI_PARALLEL_BLOCKS, aria_ops.aria_decrypt_16way);
+ ECB_BLOCK(1, aria_decrypt);
+ ECB_WALK_END();
+}
+
+static int aria_avx_ecb_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aria_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return ecb_do_encrypt(req, ctx->enc_key[0]);
+}
+
+static int aria_avx_ecb_decrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aria_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return ecb_do_decrypt(req, ctx->dec_key[0]);
+}
+
+static int aria_avx_set_key(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ return aria_set_key(&tfm->base, key, keylen);
+}
+
+static int aria_avx_ctr_encrypt(struct skcipher_request *req)
+{
+ struct aria_avx_request_ctx *req_ctx = skcipher_request_ctx(req);
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aria_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((nbytes = walk.nbytes) > 0) {
+ const u8 *src = walk.src.virt.addr;
+ u8 *dst = walk.dst.virt.addr;
+
+ while (nbytes >= ARIA_AESNI_PARALLEL_BLOCK_SIZE) {
+ kernel_fpu_begin();
+ aria_ops.aria_ctr_crypt_16way(ctx, dst, src,
+ &req_ctx->keystream[0],
+ walk.iv);
+ kernel_fpu_end();
+ dst += ARIA_AESNI_PARALLEL_BLOCK_SIZE;
+ src += ARIA_AESNI_PARALLEL_BLOCK_SIZE;
+ nbytes -= ARIA_AESNI_PARALLEL_BLOCK_SIZE;
+ }
+
+ while (nbytes >= ARIA_BLOCK_SIZE) {
+ memcpy(&req_ctx->keystream[0], walk.iv, ARIA_BLOCK_SIZE);
+ crypto_inc(walk.iv, ARIA_BLOCK_SIZE);
+
+ aria_encrypt(ctx, &req_ctx->keystream[0],
+ &req_ctx->keystream[0]);
+
+ crypto_xor_cpy(dst, src, &req_ctx->keystream[0],
+ ARIA_BLOCK_SIZE);
+ dst += ARIA_BLOCK_SIZE;
+ src += ARIA_BLOCK_SIZE;
+ nbytes -= ARIA_BLOCK_SIZE;
+ }
+
+ if (walk.nbytes == walk.total && nbytes > 0) {
+ memcpy(&req_ctx->keystream[0], walk.iv,
+ ARIA_BLOCK_SIZE);
+ crypto_inc(walk.iv, ARIA_BLOCK_SIZE);
+
+ aria_encrypt(ctx, &req_ctx->keystream[0],
+ &req_ctx->keystream[0]);
+
+ crypto_xor_cpy(dst, src, &req_ctx->keystream[0],
+ nbytes);
+ dst += nbytes;
+ src += nbytes;
+ nbytes = 0;
+ }
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+
+static int aria_avx_init_tfm(struct crypto_skcipher *tfm)
+{
+ crypto_skcipher_set_reqsize(tfm, sizeof(struct aria_avx_request_ctx));
+
+ return 0;
+}
+
+static struct skcipher_alg aria_algs[] = {
+ {
+ .base.cra_name = "__ecb(aria)",
+ .base.cra_driver_name = "__ecb-aria-avx",
+ .base.cra_priority = 400,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = ARIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct aria_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = ARIA_MIN_KEY_SIZE,
+ .max_keysize = ARIA_MAX_KEY_SIZE,
+ .setkey = aria_avx_set_key,
+ .encrypt = aria_avx_ecb_encrypt,
+ .decrypt = aria_avx_ecb_decrypt,
+ }, {
+ .base.cra_name = "__ctr(aria)",
+ .base.cra_driver_name = "__ctr-aria-avx",
+ .base.cra_priority = 400,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct aria_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = ARIA_MIN_KEY_SIZE,
+ .max_keysize = ARIA_MAX_KEY_SIZE,
+ .ivsize = ARIA_BLOCK_SIZE,
+ .chunksize = ARIA_BLOCK_SIZE,
+ .walksize = 16 * ARIA_BLOCK_SIZE,
+ .setkey = aria_avx_set_key,
+ .encrypt = aria_avx_ctr_encrypt,
+ .decrypt = aria_avx_ctr_encrypt,
+ .init = aria_avx_init_tfm,
+ }
+};
+
+static struct simd_skcipher_alg *aria_simd_algs[ARRAY_SIZE(aria_algs)];
+
+static int __init aria_avx_init(void)
+{
+ const char *feature_name;
+
+ if (!boot_cpu_has(X86_FEATURE_AVX) ||
+ !boot_cpu_has(X86_FEATURE_AES) ||
+ !boot_cpu_has(X86_FEATURE_OSXSAVE)) {
+ pr_info("AVX or AES-NI instructions are not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ if (boot_cpu_has(X86_FEATURE_GFNI) && IS_ENABLED(CONFIG_AS_GFNI)) {
+ aria_ops.aria_encrypt_16way = aria_aesni_avx_gfni_encrypt_16way;
+ aria_ops.aria_decrypt_16way = aria_aesni_avx_gfni_decrypt_16way;
+ aria_ops.aria_ctr_crypt_16way = aria_aesni_avx_gfni_ctr_crypt_16way;
+ } else {
+ aria_ops.aria_encrypt_16way = aria_aesni_avx_encrypt_16way;
+ aria_ops.aria_decrypt_16way = aria_aesni_avx_decrypt_16way;
+ aria_ops.aria_ctr_crypt_16way = aria_aesni_avx_ctr_crypt_16way;
+ }
+
+ return simd_register_skciphers_compat(aria_algs,
+ ARRAY_SIZE(aria_algs),
+ aria_simd_algs);
+}
+
+static void __exit aria_avx_exit(void)
+{
+ simd_unregister_skciphers(aria_algs, ARRAY_SIZE(aria_algs),
+ aria_simd_algs);
+}
+
+module_init(aria_avx_init);
+module_exit(aria_avx_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Taehee Yoo <ap420073@gmail.com>");
+MODULE_DESCRIPTION("ARIA Cipher Algorithm, AVX/AES-NI/GFNI optimized");
+MODULE_ALIAS_CRYPTO("aria");
+MODULE_ALIAS_CRYPTO("aria-aesni-avx");
diff --git a/arch/x86/crypto/aria_gfni_avx512_glue.c b/arch/x86/crypto/aria_gfni_avx512_glue.c
new file mode 100644
index 000000000000..f4a2208d2638
--- /dev/null
+++ b/arch/x86/crypto/aria_gfni_avx512_glue.c
@@ -0,0 +1,250 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Glue Code for the AVX512/GFNI assembler implementation of the ARIA Cipher
+ *
+ * Copyright (c) 2022 Taehee Yoo <ap420073@gmail.com>
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/simd.h>
+#include <crypto/aria.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include "ecb_cbc_helpers.h"
+#include "aria-avx.h"
+
+asmlinkage void aria_gfni_avx512_encrypt_64way(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void aria_gfni_avx512_decrypt_64way(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void aria_gfni_avx512_ctr_crypt_64way(const void *ctx, u8 *dst,
+ const u8 *src,
+ u8 *keystream, u8 *iv);
+
+static struct aria_avx_ops aria_ops;
+
+struct aria_avx512_request_ctx {
+ u8 keystream[ARIA_GFNI_AVX512_PARALLEL_BLOCK_SIZE];
+};
+
+static int ecb_do_encrypt(struct skcipher_request *req, const u32 *rkey)
+{
+ ECB_WALK_START(req, ARIA_BLOCK_SIZE, ARIA_AESNI_PARALLEL_BLOCKS);
+ ECB_BLOCK(ARIA_GFNI_AVX512_PARALLEL_BLOCKS, aria_ops.aria_encrypt_64way);
+ ECB_BLOCK(ARIA_AESNI_AVX2_PARALLEL_BLOCKS, aria_ops.aria_encrypt_32way);
+ ECB_BLOCK(ARIA_AESNI_PARALLEL_BLOCKS, aria_ops.aria_encrypt_16way);
+ ECB_BLOCK(1, aria_encrypt);
+ ECB_WALK_END();
+}
+
+static int ecb_do_decrypt(struct skcipher_request *req, const u32 *rkey)
+{
+ ECB_WALK_START(req, ARIA_BLOCK_SIZE, ARIA_AESNI_PARALLEL_BLOCKS);
+ ECB_BLOCK(ARIA_GFNI_AVX512_PARALLEL_BLOCKS, aria_ops.aria_decrypt_64way);
+ ECB_BLOCK(ARIA_AESNI_AVX2_PARALLEL_BLOCKS, aria_ops.aria_decrypt_32way);
+ ECB_BLOCK(ARIA_AESNI_PARALLEL_BLOCKS, aria_ops.aria_decrypt_16way);
+ ECB_BLOCK(1, aria_decrypt);
+ ECB_WALK_END();
+}
+
+static int aria_avx512_ecb_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aria_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return ecb_do_encrypt(req, ctx->enc_key[0]);
+}
+
+static int aria_avx512_ecb_decrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aria_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return ecb_do_decrypt(req, ctx->dec_key[0]);
+}
+
+static int aria_avx512_set_key(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ return aria_set_key(&tfm->base, key, keylen);
+}
+
+static int aria_avx512_ctr_encrypt(struct skcipher_request *req)
+{
+ struct aria_avx512_request_ctx *req_ctx = skcipher_request_ctx(req);
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct aria_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((nbytes = walk.nbytes) > 0) {
+ const u8 *src = walk.src.virt.addr;
+ u8 *dst = walk.dst.virt.addr;
+
+ while (nbytes >= ARIA_GFNI_AVX512_PARALLEL_BLOCK_SIZE) {
+ kernel_fpu_begin();
+ aria_ops.aria_ctr_crypt_64way(ctx, dst, src,
+ &req_ctx->keystream[0],
+ walk.iv);
+ kernel_fpu_end();
+ dst += ARIA_GFNI_AVX512_PARALLEL_BLOCK_SIZE;
+ src += ARIA_GFNI_AVX512_PARALLEL_BLOCK_SIZE;
+ nbytes -= ARIA_GFNI_AVX512_PARALLEL_BLOCK_SIZE;
+ }
+
+ while (nbytes >= ARIA_AESNI_AVX2_PARALLEL_BLOCK_SIZE) {
+ kernel_fpu_begin();
+ aria_ops.aria_ctr_crypt_32way(ctx, dst, src,
+ &req_ctx->keystream[0],
+ walk.iv);
+ kernel_fpu_end();
+ dst += ARIA_AESNI_AVX2_PARALLEL_BLOCK_SIZE;
+ src += ARIA_AESNI_AVX2_PARALLEL_BLOCK_SIZE;
+ nbytes -= ARIA_AESNI_AVX2_PARALLEL_BLOCK_SIZE;
+ }
+
+ while (nbytes >= ARIA_AESNI_PARALLEL_BLOCK_SIZE) {
+ kernel_fpu_begin();
+ aria_ops.aria_ctr_crypt_16way(ctx, dst, src,
+ &req_ctx->keystream[0],
+ walk.iv);
+ kernel_fpu_end();
+ dst += ARIA_AESNI_PARALLEL_BLOCK_SIZE;
+ src += ARIA_AESNI_PARALLEL_BLOCK_SIZE;
+ nbytes -= ARIA_AESNI_PARALLEL_BLOCK_SIZE;
+ }
+
+ while (nbytes >= ARIA_BLOCK_SIZE) {
+ memcpy(&req_ctx->keystream[0], walk.iv,
+ ARIA_BLOCK_SIZE);
+ crypto_inc(walk.iv, ARIA_BLOCK_SIZE);
+
+ aria_encrypt(ctx, &req_ctx->keystream[0],
+ &req_ctx->keystream[0]);
+
+ crypto_xor_cpy(dst, src, &req_ctx->keystream[0],
+ ARIA_BLOCK_SIZE);
+ dst += ARIA_BLOCK_SIZE;
+ src += ARIA_BLOCK_SIZE;
+ nbytes -= ARIA_BLOCK_SIZE;
+ }
+
+ if (walk.nbytes == walk.total && nbytes > 0) {
+ memcpy(&req_ctx->keystream[0], walk.iv,
+ ARIA_BLOCK_SIZE);
+ crypto_inc(walk.iv, ARIA_BLOCK_SIZE);
+
+ aria_encrypt(ctx, &req_ctx->keystream[0],
+ &req_ctx->keystream[0]);
+
+ crypto_xor_cpy(dst, src, &req_ctx->keystream[0],
+ nbytes);
+ dst += nbytes;
+ src += nbytes;
+ nbytes = 0;
+ }
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+
+static int aria_avx512_init_tfm(struct crypto_skcipher *tfm)
+{
+ crypto_skcipher_set_reqsize(tfm,
+ sizeof(struct aria_avx512_request_ctx));
+
+ return 0;
+}
+
+static struct skcipher_alg aria_algs[] = {
+ {
+ .base.cra_name = "__ecb(aria)",
+ .base.cra_driver_name = "__ecb-aria-avx512",
+ .base.cra_priority = 600,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = ARIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct aria_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = ARIA_MIN_KEY_SIZE,
+ .max_keysize = ARIA_MAX_KEY_SIZE,
+ .setkey = aria_avx512_set_key,
+ .encrypt = aria_avx512_ecb_encrypt,
+ .decrypt = aria_avx512_ecb_decrypt,
+ }, {
+ .base.cra_name = "__ctr(aria)",
+ .base.cra_driver_name = "__ctr-aria-avx512",
+ .base.cra_priority = 600,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL |
+ CRYPTO_ALG_SKCIPHER_REQSIZE_LARGE,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct aria_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = ARIA_MIN_KEY_SIZE,
+ .max_keysize = ARIA_MAX_KEY_SIZE,
+ .ivsize = ARIA_BLOCK_SIZE,
+ .chunksize = ARIA_BLOCK_SIZE,
+ .setkey = aria_avx512_set_key,
+ .encrypt = aria_avx512_ctr_encrypt,
+ .decrypt = aria_avx512_ctr_encrypt,
+ .init = aria_avx512_init_tfm,
+ }
+};
+
+static struct simd_skcipher_alg *aria_simd_algs[ARRAY_SIZE(aria_algs)];
+
+static int __init aria_avx512_init(void)
+{
+ const char *feature_name;
+
+ if (!boot_cpu_has(X86_FEATURE_AVX) ||
+ !boot_cpu_has(X86_FEATURE_AVX2) ||
+ !boot_cpu_has(X86_FEATURE_AVX512F) ||
+ !boot_cpu_has(X86_FEATURE_AVX512VL) ||
+ !boot_cpu_has(X86_FEATURE_GFNI) ||
+ !boot_cpu_has(X86_FEATURE_OSXSAVE)) {
+ pr_info("AVX512/GFNI instructions are not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM |
+ XFEATURE_MASK_AVX512, &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ aria_ops.aria_encrypt_16way = aria_aesni_avx_gfni_encrypt_16way;
+ aria_ops.aria_decrypt_16way = aria_aesni_avx_gfni_decrypt_16way;
+ aria_ops.aria_ctr_crypt_16way = aria_aesni_avx_gfni_ctr_crypt_16way;
+ aria_ops.aria_encrypt_32way = aria_aesni_avx2_gfni_encrypt_32way;
+ aria_ops.aria_decrypt_32way = aria_aesni_avx2_gfni_decrypt_32way;
+ aria_ops.aria_ctr_crypt_32way = aria_aesni_avx2_gfni_ctr_crypt_32way;
+ aria_ops.aria_encrypt_64way = aria_gfni_avx512_encrypt_64way;
+ aria_ops.aria_decrypt_64way = aria_gfni_avx512_decrypt_64way;
+ aria_ops.aria_ctr_crypt_64way = aria_gfni_avx512_ctr_crypt_64way;
+
+ return simd_register_skciphers_compat(aria_algs,
+ ARRAY_SIZE(aria_algs),
+ aria_simd_algs);
+}
+
+static void __exit aria_avx512_exit(void)
+{
+ simd_unregister_skciphers(aria_algs, ARRAY_SIZE(aria_algs),
+ aria_simd_algs);
+}
+
+module_init(aria_avx512_init);
+module_exit(aria_avx512_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Taehee Yoo <ap420073@gmail.com>");
+MODULE_DESCRIPTION("ARIA Cipher Algorithm, AVX512/GFNI optimized");
+MODULE_ALIAS_CRYPTO("aria");
+MODULE_ALIAS_CRYPTO("aria-gfni-avx512");
diff --git a/arch/x86/crypto/blake2s-core.S b/arch/x86/crypto/blake2s-core.S
new file mode 100644
index 000000000000..b50b35ff1fdb
--- /dev/null
+++ b/arch/x86/crypto/blake2s-core.S
@@ -0,0 +1,256 @@
+/* SPDX-License-Identifier: GPL-2.0 OR MIT */
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (C) 2017-2019 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
+ */
+
+#include <linux/linkage.h>
+
+.section .rodata.cst32.BLAKE2S_IV, "aM", @progbits, 32
+.align 32
+IV: .octa 0xA54FF53A3C6EF372BB67AE856A09E667
+ .octa 0x5BE0CD191F83D9AB9B05688C510E527F
+.section .rodata.cst16.ROT16, "aM", @progbits, 16
+.align 16
+ROT16: .octa 0x0D0C0F0E09080B0A0504070601000302
+.section .rodata.cst16.ROR328, "aM", @progbits, 16
+.align 16
+ROR328: .octa 0x0C0F0E0D080B0A090407060500030201
+.section .rodata.cst64.BLAKE2S_SIGMA, "aM", @progbits, 160
+.align 64
+SIGMA:
+.byte 0, 2, 4, 6, 1, 3, 5, 7, 14, 8, 10, 12, 15, 9, 11, 13
+.byte 14, 4, 9, 13, 10, 8, 15, 6, 5, 1, 0, 11, 3, 12, 2, 7
+.byte 11, 12, 5, 15, 8, 0, 2, 13, 9, 10, 3, 7, 4, 14, 6, 1
+.byte 7, 3, 13, 11, 9, 1, 12, 14, 15, 2, 5, 4, 8, 6, 10, 0
+.byte 9, 5, 2, 10, 0, 7, 4, 15, 3, 14, 11, 6, 13, 1, 12, 8
+.byte 2, 6, 0, 8, 12, 10, 11, 3, 1, 4, 7, 15, 9, 13, 5, 14
+.byte 12, 1, 14, 4, 5, 15, 13, 10, 8, 0, 6, 9, 11, 7, 3, 2
+.byte 13, 7, 12, 3, 11, 14, 1, 9, 2, 5, 15, 8, 10, 0, 4, 6
+.byte 6, 14, 11, 0, 15, 9, 3, 8, 10, 12, 13, 1, 5, 2, 7, 4
+.byte 10, 8, 7, 1, 2, 4, 6, 5, 13, 15, 9, 3, 0, 11, 14, 12
+#ifdef CONFIG_AS_AVX512
+.section .rodata.cst64.BLAKE2S_SIGMA2, "aM", @progbits, 640
+.align 64
+SIGMA2:
+.long 0, 2, 4, 6, 1, 3, 5, 7, 14, 8, 10, 12, 15, 9, 11, 13
+.long 8, 2, 13, 15, 10, 9, 12, 3, 6, 4, 0, 14, 5, 11, 1, 7
+.long 11, 13, 8, 6, 5, 10, 14, 3, 2, 4, 12, 15, 1, 0, 7, 9
+.long 11, 10, 7, 0, 8, 15, 1, 13, 3, 6, 2, 12, 4, 14, 9, 5
+.long 4, 10, 9, 14, 15, 0, 11, 8, 1, 7, 3, 13, 2, 5, 6, 12
+.long 2, 11, 4, 15, 14, 3, 10, 8, 13, 6, 5, 7, 0, 12, 1, 9
+.long 4, 8, 15, 9, 14, 11, 13, 5, 3, 2, 1, 12, 6, 10, 7, 0
+.long 6, 13, 0, 14, 12, 2, 1, 11, 15, 4, 5, 8, 7, 9, 3, 10
+.long 15, 5, 4, 13, 10, 7, 3, 11, 12, 2, 0, 6, 9, 8, 1, 14
+.long 8, 7, 14, 11, 13, 15, 0, 12, 10, 4, 5, 6, 3, 2, 1, 9
+#endif /* CONFIG_AS_AVX512 */
+
+.text
+SYM_FUNC_START(blake2s_compress_ssse3)
+ testq %rdx,%rdx
+ je .Lendofloop
+ movdqu (%rdi),%xmm0
+ movdqu 0x10(%rdi),%xmm1
+ movdqa ROT16(%rip),%xmm12
+ movdqa ROR328(%rip),%xmm13
+ movdqu 0x20(%rdi),%xmm14
+ movq %rcx,%xmm15
+ leaq SIGMA+0xa0(%rip),%r8
+ jmp .Lbeginofloop
+ .align 32
+.Lbeginofloop:
+ movdqa %xmm0,%xmm10
+ movdqa %xmm1,%xmm11
+ paddq %xmm15,%xmm14
+ movdqa IV(%rip),%xmm2
+ movdqa %xmm14,%xmm3
+ pxor IV+0x10(%rip),%xmm3
+ leaq SIGMA(%rip),%rcx
+.Lroundloop:
+ movzbl (%rcx),%eax
+ movd (%rsi,%rax,4),%xmm4
+ movzbl 0x1(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm5
+ movzbl 0x2(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm6
+ movzbl 0x3(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm7
+ punpckldq %xmm5,%xmm4
+ punpckldq %xmm7,%xmm6
+ punpcklqdq %xmm6,%xmm4
+ paddd %xmm4,%xmm0
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm12,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm8
+ psrld $0xc,%xmm1
+ pslld $0x14,%xmm8
+ por %xmm8,%xmm1
+ movzbl 0x4(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm5
+ movzbl 0x5(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm6
+ movzbl 0x6(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm7
+ movzbl 0x7(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm4
+ punpckldq %xmm6,%xmm5
+ punpckldq %xmm4,%xmm7
+ punpcklqdq %xmm7,%xmm5
+ paddd %xmm5,%xmm0
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm13,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm8
+ psrld $0x7,%xmm1
+ pslld $0x19,%xmm8
+ por %xmm8,%xmm1
+ pshufd $0x93,%xmm0,%xmm0
+ pshufd $0x4e,%xmm3,%xmm3
+ pshufd $0x39,%xmm2,%xmm2
+ movzbl 0x8(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm6
+ movzbl 0x9(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm7
+ movzbl 0xa(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm4
+ movzbl 0xb(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm5
+ punpckldq %xmm7,%xmm6
+ punpckldq %xmm5,%xmm4
+ punpcklqdq %xmm4,%xmm6
+ paddd %xmm6,%xmm0
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm12,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm8
+ psrld $0xc,%xmm1
+ pslld $0x14,%xmm8
+ por %xmm8,%xmm1
+ movzbl 0xc(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm7
+ movzbl 0xd(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm4
+ movzbl 0xe(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm5
+ movzbl 0xf(%rcx),%eax
+ movd (%rsi,%rax,4),%xmm6
+ punpckldq %xmm4,%xmm7
+ punpckldq %xmm6,%xmm5
+ punpcklqdq %xmm5,%xmm7
+ paddd %xmm7,%xmm0
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm13,%xmm3
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm8
+ psrld $0x7,%xmm1
+ pslld $0x19,%xmm8
+ por %xmm8,%xmm1
+ pshufd $0x39,%xmm0,%xmm0
+ pshufd $0x4e,%xmm3,%xmm3
+ pshufd $0x93,%xmm2,%xmm2
+ addq $0x10,%rcx
+ cmpq %r8,%rcx
+ jnz .Lroundloop
+ pxor %xmm2,%xmm0
+ pxor %xmm3,%xmm1
+ pxor %xmm10,%xmm0
+ pxor %xmm11,%xmm1
+ addq $0x40,%rsi
+ decq %rdx
+ jnz .Lbeginofloop
+ movdqu %xmm0,(%rdi)
+ movdqu %xmm1,0x10(%rdi)
+ movdqu %xmm14,0x20(%rdi)
+.Lendofloop:
+ RET
+SYM_FUNC_END(blake2s_compress_ssse3)
+
+#ifdef CONFIG_AS_AVX512
+SYM_FUNC_START(blake2s_compress_avx512)
+ vmovdqu (%rdi),%xmm0
+ vmovdqu 0x10(%rdi),%xmm1
+ vmovdqu 0x20(%rdi),%xmm4
+ vmovq %rcx,%xmm5
+ vmovdqa IV(%rip),%xmm14
+ vmovdqa IV+16(%rip),%xmm15
+ jmp .Lblake2s_compress_avx512_mainloop
+.align 32
+.Lblake2s_compress_avx512_mainloop:
+ vmovdqa %xmm0,%xmm10
+ vmovdqa %xmm1,%xmm11
+ vpaddq %xmm5,%xmm4,%xmm4
+ vmovdqa %xmm14,%xmm2
+ vpxor %xmm15,%xmm4,%xmm3
+ vmovdqu (%rsi),%ymm6
+ vmovdqu 0x20(%rsi),%ymm7
+ addq $0x40,%rsi
+ leaq SIGMA2(%rip),%rax
+ movb $0xa,%cl
+.Lblake2s_compress_avx512_roundloop:
+ addq $0x40,%rax
+ vmovdqa -0x40(%rax),%ymm8
+ vmovdqa -0x20(%rax),%ymm9
+ vpermi2d %ymm7,%ymm6,%ymm8
+ vpermi2d %ymm7,%ymm6,%ymm9
+ vmovdqa %ymm8,%ymm6
+ vmovdqa %ymm9,%ymm7
+ vpaddd %xmm8,%xmm0,%xmm0
+ vpaddd %xmm1,%xmm0,%xmm0
+ vpxor %xmm0,%xmm3,%xmm3
+ vprord $0x10,%xmm3,%xmm3
+ vpaddd %xmm3,%xmm2,%xmm2
+ vpxor %xmm2,%xmm1,%xmm1
+ vprord $0xc,%xmm1,%xmm1
+ vextracti128 $0x1,%ymm8,%xmm8
+ vpaddd %xmm8,%xmm0,%xmm0
+ vpaddd %xmm1,%xmm0,%xmm0
+ vpxor %xmm0,%xmm3,%xmm3
+ vprord $0x8,%xmm3,%xmm3
+ vpaddd %xmm3,%xmm2,%xmm2
+ vpxor %xmm2,%xmm1,%xmm1
+ vprord $0x7,%xmm1,%xmm1
+ vpshufd $0x93,%xmm0,%xmm0
+ vpshufd $0x4e,%xmm3,%xmm3
+ vpshufd $0x39,%xmm2,%xmm2
+ vpaddd %xmm9,%xmm0,%xmm0
+ vpaddd %xmm1,%xmm0,%xmm0
+ vpxor %xmm0,%xmm3,%xmm3
+ vprord $0x10,%xmm3,%xmm3
+ vpaddd %xmm3,%xmm2,%xmm2
+ vpxor %xmm2,%xmm1,%xmm1
+ vprord $0xc,%xmm1,%xmm1
+ vextracti128 $0x1,%ymm9,%xmm9
+ vpaddd %xmm9,%xmm0,%xmm0
+ vpaddd %xmm1,%xmm0,%xmm0
+ vpxor %xmm0,%xmm3,%xmm3
+ vprord $0x8,%xmm3,%xmm3
+ vpaddd %xmm3,%xmm2,%xmm2
+ vpxor %xmm2,%xmm1,%xmm1
+ vprord $0x7,%xmm1,%xmm1
+ vpshufd $0x39,%xmm0,%xmm0
+ vpshufd $0x4e,%xmm3,%xmm3
+ vpshufd $0x93,%xmm2,%xmm2
+ decb %cl
+ jne .Lblake2s_compress_avx512_roundloop
+ vpxor %xmm10,%xmm0,%xmm0
+ vpxor %xmm11,%xmm1,%xmm1
+ vpxor %xmm2,%xmm0,%xmm0
+ vpxor %xmm3,%xmm1,%xmm1
+ decq %rdx
+ jne .Lblake2s_compress_avx512_mainloop
+ vmovdqu %xmm0,(%rdi)
+ vmovdqu %xmm1,0x10(%rdi)
+ vmovdqu %xmm4,0x20(%rdi)
+ vzeroupper
+ RET
+SYM_FUNC_END(blake2s_compress_avx512)
+#endif /* CONFIG_AS_AVX512 */
diff --git a/arch/x86/crypto/blake2s-glue.c b/arch/x86/crypto/blake2s-glue.c
new file mode 100644
index 000000000000..0313f9673f56
--- /dev/null
+++ b/arch/x86/crypto/blake2s-glue.c
@@ -0,0 +1,74 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include <crypto/internal/blake2s.h>
+
+#include <linux/types.h>
+#include <linux/jump_label.h>
+#include <linux/kernel.h>
+#include <linux/sizes.h>
+
+#include <asm/cpufeature.h>
+#include <asm/fpu/api.h>
+#include <asm/processor.h>
+#include <asm/simd.h>
+
+asmlinkage void blake2s_compress_ssse3(struct blake2s_state *state,
+ const u8 *block, const size_t nblocks,
+ const u32 inc);
+asmlinkage void blake2s_compress_avx512(struct blake2s_state *state,
+ const u8 *block, const size_t nblocks,
+ const u32 inc);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(blake2s_use_ssse3);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(blake2s_use_avx512);
+
+void blake2s_compress(struct blake2s_state *state, const u8 *block,
+ size_t nblocks, const u32 inc)
+{
+ /* SIMD disables preemption, so relax after processing each page. */
+ BUILD_BUG_ON(SZ_4K / BLAKE2S_BLOCK_SIZE < 8);
+
+ if (!static_branch_likely(&blake2s_use_ssse3) || !may_use_simd()) {
+ blake2s_compress_generic(state, block, nblocks, inc);
+ return;
+ }
+
+ do {
+ const size_t blocks = min_t(size_t, nblocks,
+ SZ_4K / BLAKE2S_BLOCK_SIZE);
+
+ kernel_fpu_begin();
+ if (IS_ENABLED(CONFIG_AS_AVX512) &&
+ static_branch_likely(&blake2s_use_avx512))
+ blake2s_compress_avx512(state, block, blocks, inc);
+ else
+ blake2s_compress_ssse3(state, block, blocks, inc);
+ kernel_fpu_end();
+
+ nblocks -= blocks;
+ block += blocks * BLAKE2S_BLOCK_SIZE;
+ } while (nblocks);
+}
+EXPORT_SYMBOL(blake2s_compress);
+
+static int __init blake2s_mod_init(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SSSE3))
+ static_branch_enable(&blake2s_use_ssse3);
+
+ if (IS_ENABLED(CONFIG_AS_AVX512) &&
+ boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) &&
+ boot_cpu_has(X86_FEATURE_AVX512F) &&
+ boot_cpu_has(X86_FEATURE_AVX512VL) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM |
+ XFEATURE_MASK_AVX512, NULL))
+ static_branch_enable(&blake2s_use_avx512);
+
+ return 0;
+}
+
+subsys_initcall(blake2s_mod_init);
diff --git a/arch/x86/crypto/blowfish-x86_64-asm_64.S b/arch/x86/crypto/blowfish-x86_64-asm_64.S
new file mode 100644
index 000000000000..e88c8e4f013c
--- /dev/null
+++ b/arch/x86/crypto/blowfish-x86_64-asm_64.S
@@ -0,0 +1,354 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Blowfish Cipher Algorithm (x86_64)
+ *
+ * Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ */
+
+#include <linux/linkage.h>
+
+.file "blowfish-x86_64-asm.S"
+.text
+
+/* structure of crypto context */
+#define p 0
+#define s0 ((16 + 2) * 4)
+#define s1 ((16 + 2 + (1 * 256)) * 4)
+#define s2 ((16 + 2 + (2 * 256)) * 4)
+#define s3 ((16 + 2 + (3 * 256)) * 4)
+
+/* register macros */
+#define CTX %r12
+#define RIO %rsi
+
+#define RX0 %rax
+#define RX1 %rbx
+#define RX2 %rcx
+#define RX3 %rdx
+
+#define RX0d %eax
+#define RX1d %ebx
+#define RX2d %ecx
+#define RX3d %edx
+
+#define RX0bl %al
+#define RX1bl %bl
+#define RX2bl %cl
+#define RX3bl %dl
+
+#define RX0bh %ah
+#define RX1bh %bh
+#define RX2bh %ch
+#define RX3bh %dh
+
+#define RT0 %rdi
+#define RT1 %rsi
+#define RT2 %r8
+#define RT3 %r9
+
+#define RT0d %edi
+#define RT1d %esi
+#define RT2d %r8d
+#define RT3d %r9d
+
+#define RKEY %r10
+
+/***********************************************************************
+ * 1-way blowfish
+ ***********************************************************************/
+#define F() \
+ rorq $16, RX0; \
+ movzbl RX0bh, RT0d; \
+ movzbl RX0bl, RT1d; \
+ rolq $16, RX0; \
+ movl s0(CTX,RT0,4), RT0d; \
+ addl s1(CTX,RT1,4), RT0d; \
+ movzbl RX0bh, RT1d; \
+ movzbl RX0bl, RT2d; \
+ rolq $32, RX0; \
+ xorl s2(CTX,RT1,4), RT0d; \
+ addl s3(CTX,RT2,4), RT0d; \
+ xorq RT0, RX0;
+
+#define add_roundkey_enc(n) \
+ xorq p+4*(n)(CTX), RX0;
+
+#define round_enc(n) \
+ add_roundkey_enc(n); \
+ \
+ F(); \
+ F();
+
+#define add_roundkey_dec(n) \
+ movq p+4*(n-1)(CTX), RT0; \
+ rorq $32, RT0; \
+ xorq RT0, RX0;
+
+#define round_dec(n) \
+ add_roundkey_dec(n); \
+ \
+ F(); \
+ F(); \
+
+#define read_block() \
+ movq (RIO), RX0; \
+ rorq $32, RX0; \
+ bswapq RX0;
+
+#define write_block() \
+ bswapq RX0; \
+ movq RX0, (RIO);
+
+SYM_FUNC_START(blowfish_enc_blk)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ */
+ movq %r12, %r11;
+
+ movq %rdi, CTX;
+ movq %rsi, %r10;
+ movq %rdx, RIO;
+
+ read_block();
+
+ round_enc(0);
+ round_enc(2);
+ round_enc(4);
+ round_enc(6);
+ round_enc(8);
+ round_enc(10);
+ round_enc(12);
+ round_enc(14);
+ add_roundkey_enc(16);
+
+ movq %r11, %r12;
+ movq %r10, RIO;
+
+ write_block();
+ RET;
+SYM_FUNC_END(blowfish_enc_blk)
+
+SYM_FUNC_START(blowfish_dec_blk)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ */
+ movq %r12, %r11;
+
+ movq %rdi, CTX;
+ movq %rsi, %r10;
+ movq %rdx, RIO;
+
+ read_block();
+
+ round_dec(17);
+ round_dec(15);
+ round_dec(13);
+ round_dec(11);
+ round_dec(9);
+ round_dec(7);
+ round_dec(5);
+ round_dec(3);
+ add_roundkey_dec(1);
+
+ movq %r10, RIO;
+ write_block();
+
+ movq %r11, %r12;
+
+ RET;
+SYM_FUNC_END(blowfish_dec_blk)
+
+/**********************************************************************
+ 4-way blowfish, four blocks parallel
+ **********************************************************************/
+
+/* F() for 4-way. Slower when used alone/1-way, but faster when used
+ * parallel/4-way (tested on AMD Phenom II & Intel Xeon E7330).
+ */
+#define F4(x) \
+ movzbl x ## bh, RT1d; \
+ movzbl x ## bl, RT3d; \
+ rorq $16, x; \
+ movzbl x ## bh, RT0d; \
+ movzbl x ## bl, RT2d; \
+ rorq $16, x; \
+ movl s0(CTX,RT0,4), RT0d; \
+ addl s1(CTX,RT2,4), RT0d; \
+ xorl s2(CTX,RT1,4), RT0d; \
+ addl s3(CTX,RT3,4), RT0d; \
+ xorq RT0, x;
+
+#define add_preloaded_roundkey4() \
+ xorq RKEY, RX0; \
+ xorq RKEY, RX1; \
+ xorq RKEY, RX2; \
+ xorq RKEY, RX3;
+
+#define preload_roundkey_enc(n) \
+ movq p+4*(n)(CTX), RKEY;
+
+#define add_roundkey_enc4(n) \
+ add_preloaded_roundkey4(); \
+ preload_roundkey_enc(n + 2);
+
+#define round_enc4(n) \
+ add_roundkey_enc4(n); \
+ \
+ F4(RX0); \
+ F4(RX1); \
+ F4(RX2); \
+ F4(RX3); \
+ \
+ F4(RX0); \
+ F4(RX1); \
+ F4(RX2); \
+ F4(RX3);
+
+#define preload_roundkey_dec(n) \
+ movq p+4*((n)-1)(CTX), RKEY; \
+ rorq $32, RKEY;
+
+#define add_roundkey_dec4(n) \
+ add_preloaded_roundkey4(); \
+ preload_roundkey_dec(n - 2);
+
+#define round_dec4(n) \
+ add_roundkey_dec4(n); \
+ \
+ F4(RX0); \
+ F4(RX1); \
+ F4(RX2); \
+ F4(RX3); \
+ \
+ F4(RX0); \
+ F4(RX1); \
+ F4(RX2); \
+ F4(RX3);
+
+#define read_block4() \
+ movq (RIO), RX0; \
+ rorq $32, RX0; \
+ bswapq RX0; \
+ \
+ movq 8(RIO), RX1; \
+ rorq $32, RX1; \
+ bswapq RX1; \
+ \
+ movq 16(RIO), RX2; \
+ rorq $32, RX2; \
+ bswapq RX2; \
+ \
+ movq 24(RIO), RX3; \
+ rorq $32, RX3; \
+ bswapq RX3;
+
+#define write_block4() \
+ bswapq RX0; \
+ movq RX0, (RIO); \
+ \
+ bswapq RX1; \
+ movq RX1, 8(RIO); \
+ \
+ bswapq RX2; \
+ movq RX2, 16(RIO); \
+ \
+ bswapq RX3; \
+ movq RX3, 24(RIO);
+
+#define xor_block4() \
+ movq (RIO), RT0; \
+ bswapq RT0; \
+ xorq RT0, RX1; \
+ \
+ movq 8(RIO), RT2; \
+ bswapq RT2; \
+ xorq RT2, RX2; \
+ \
+ movq 16(RIO), RT3; \
+ bswapq RT3; \
+ xorq RT3, RX3;
+
+SYM_FUNC_START(blowfish_enc_blk_4way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ */
+ pushq %r12;
+ pushq %rbx;
+
+ movq %rdi, CTX
+ movq %rsi, %r11;
+ movq %rdx, RIO;
+
+ preload_roundkey_enc(0);
+
+ read_block4();
+
+ round_enc4(0);
+ round_enc4(2);
+ round_enc4(4);
+ round_enc4(6);
+ round_enc4(8);
+ round_enc4(10);
+ round_enc4(12);
+ round_enc4(14);
+ add_preloaded_roundkey4();
+
+ movq %r11, RIO;
+ write_block4();
+
+ popq %rbx;
+ popq %r12;
+ RET;
+SYM_FUNC_END(blowfish_enc_blk_4way)
+
+SYM_FUNC_START(__blowfish_dec_blk_4way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: cbc (bool)
+ */
+ pushq %r12;
+ pushq %rbx;
+ pushq %rcx;
+ pushq %rdx;
+
+ movq %rdi, CTX;
+ movq %rsi, %r11;
+ movq %rdx, RIO;
+
+ preload_roundkey_dec(17);
+ read_block4();
+
+ round_dec4(17);
+ round_dec4(15);
+ round_dec4(13);
+ round_dec4(11);
+ round_dec4(9);
+ round_dec4(7);
+ round_dec4(5);
+ round_dec4(3);
+ add_preloaded_roundkey4();
+
+ popq RIO;
+ popq %r12;
+ testq %r12, %r12;
+ jz .L_no_cbc_xor;
+
+ xor_block4();
+
+.L_no_cbc_xor:
+ movq %r11, RIO;
+ write_block4();
+
+ popq %rbx;
+ popq %r12;
+
+ RET;
+SYM_FUNC_END(__blowfish_dec_blk_4way)
diff --git a/arch/x86/crypto/blowfish_glue.c b/arch/x86/crypto/blowfish_glue.c
new file mode 100644
index 000000000000..552f2df0643f
--- /dev/null
+++ b/arch/x86/crypto/blowfish_glue.c
@@ -0,0 +1,197 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for assembler optimized version of Blowfish
+ *
+ * Copyright (c) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by:
+ * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/blowfish.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/crypto.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include "ecb_cbc_helpers.h"
+
+/* regular block cipher functions */
+asmlinkage void blowfish_enc_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src);
+asmlinkage void blowfish_dec_blk(struct bf_ctx *ctx, u8 *dst, const u8 *src);
+
+/* 4-way parallel cipher functions */
+asmlinkage void blowfish_enc_blk_4way(struct bf_ctx *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void __blowfish_dec_blk_4way(struct bf_ctx *ctx, u8 *dst,
+ const u8 *src, bool cbc);
+
+static inline void blowfish_dec_ecb_4way(struct bf_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ return __blowfish_dec_blk_4way(ctx, dst, src, false);
+}
+
+static inline void blowfish_dec_cbc_4way(struct bf_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ return __blowfish_dec_blk_4way(ctx, dst, src, true);
+}
+
+static void blowfish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ blowfish_enc_blk(crypto_tfm_ctx(tfm), dst, src);
+}
+
+static void blowfish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ blowfish_dec_blk(crypto_tfm_ctx(tfm), dst, src);
+}
+
+static int blowfish_setkey_skcipher(struct crypto_skcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return blowfish_setkey(&tfm->base, key, keylen);
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, BF_BLOCK_SIZE, -1);
+ ECB_BLOCK(4, blowfish_enc_blk_4way);
+ ECB_BLOCK(1, blowfish_enc_blk);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, BF_BLOCK_SIZE, -1);
+ ECB_BLOCK(4, blowfish_dec_ecb_4way);
+ ECB_BLOCK(1, blowfish_dec_blk);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, BF_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(blowfish_enc_blk);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, BF_BLOCK_SIZE, -1);
+ CBC_DEC_BLOCK(4, blowfish_dec_cbc_4way);
+ CBC_DEC_BLOCK(1, blowfish_dec_blk);
+ CBC_WALK_END();
+}
+
+static struct crypto_alg bf_cipher_alg = {
+ .cra_name = "blowfish",
+ .cra_driver_name = "blowfish-asm",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = BF_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct bf_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_u = {
+ .cipher = {
+ .cia_min_keysize = BF_MIN_KEY_SIZE,
+ .cia_max_keysize = BF_MAX_KEY_SIZE,
+ .cia_setkey = blowfish_setkey,
+ .cia_encrypt = blowfish_encrypt,
+ .cia_decrypt = blowfish_decrypt,
+ }
+ }
+};
+
+static struct skcipher_alg bf_skcipher_algs[] = {
+ {
+ .base.cra_name = "ecb(blowfish)",
+ .base.cra_driver_name = "ecb-blowfish-asm",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = BF_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct bf_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = BF_MIN_KEY_SIZE,
+ .max_keysize = BF_MAX_KEY_SIZE,
+ .setkey = blowfish_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "cbc(blowfish)",
+ .base.cra_driver_name = "cbc-blowfish-asm",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = BF_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct bf_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = BF_MIN_KEY_SIZE,
+ .max_keysize = BF_MAX_KEY_SIZE,
+ .ivsize = BF_BLOCK_SIZE,
+ .setkey = blowfish_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ },
+};
+
+static bool is_blacklisted_cpu(void)
+{
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
+ return false;
+
+ if (boot_cpu_data.x86 == 0x0f) {
+ /*
+ * On Pentium 4, blowfish-x86_64 is slower than generic C
+ * implementation because use of 64bit rotates (which are really
+ * slow on P4). Therefore blacklist P4s.
+ */
+ return true;
+ }
+
+ return false;
+}
+
+static int force;
+module_param(force, int, 0);
+MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist");
+
+static int __init blowfish_init(void)
+{
+ int err;
+
+ if (!force && is_blacklisted_cpu()) {
+ printk(KERN_INFO
+ "blowfish-x86_64: performance on this CPU "
+ "would be suboptimal: disabling "
+ "blowfish-x86_64.\n");
+ return -ENODEV;
+ }
+
+ err = crypto_register_alg(&bf_cipher_alg);
+ if (err)
+ return err;
+
+ err = crypto_register_skciphers(bf_skcipher_algs,
+ ARRAY_SIZE(bf_skcipher_algs));
+ if (err)
+ crypto_unregister_alg(&bf_cipher_alg);
+
+ return err;
+}
+
+static void __exit blowfish_fini(void)
+{
+ crypto_unregister_alg(&bf_cipher_alg);
+ crypto_unregister_skciphers(bf_skcipher_algs,
+ ARRAY_SIZE(bf_skcipher_algs));
+}
+
+module_init(blowfish_init);
+module_exit(blowfish_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Blowfish Cipher Algorithm, asm optimized");
+MODULE_ALIAS_CRYPTO("blowfish");
+MODULE_ALIAS_CRYPTO("blowfish-asm");
diff --git a/arch/x86/crypto/camellia-aesni-avx-asm_64.S b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
new file mode 100644
index 000000000000..646477a13e11
--- /dev/null
+++ b/arch/x86/crypto/camellia-aesni-avx-asm_64.S
@@ -0,0 +1,989 @@
+/*
+ * x86_64/AVX/AES-NI assembler implementation of Camellia
+ *
+ * Copyright Ā© 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ */
+
+/*
+ * Version licensed under 2-clause BSD License is available at:
+ * http://koti.mbnet.fi/axh/crypto/camellia-BSD-1.2.0-aesni1.tar.xz
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+
+#define CAMELLIA_TABLE_BYTE_LEN 272
+
+/* struct camellia_ctx: */
+#define key_table 0
+#define key_length CAMELLIA_TABLE_BYTE_LEN
+
+/* register macros */
+#define CTX %rdi
+
+/**********************************************************************
+ 16-way camellia
+ **********************************************************************/
+#define filter_8bit(x, lo_t, hi_t, mask4bit, tmp0) \
+ vpand x, mask4bit, tmp0; \
+ vpandn x, mask4bit, x; \
+ vpsrld $4, x, x; \
+ \
+ vpshufb tmp0, lo_t, tmp0; \
+ vpshufb x, hi_t, x; \
+ vpxor tmp0, x, x;
+
+/*
+ * IN:
+ * x0..x7: byte-sliced AB state
+ * mem_cd: register pointer storing CD state
+ * key: index for key material
+ * OUT:
+ * x0..x7: new byte-sliced CD state
+ */
+#define roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, t0, t1, t2, t3, t4, t5, t6, \
+ t7, mem_cd, key) \
+ /* \
+ * S-function with AES subbytes \
+ */ \
+ vmovdqa .Linv_shift_row(%rip), t4; \
+ vbroadcastss .L0f0f0f0f(%rip), t7; \
+ vmovdqa .Lpre_tf_lo_s1(%rip), t0; \
+ vmovdqa .Lpre_tf_hi_s1(%rip), t1; \
+ \
+ /* AES inverse shift rows */ \
+ vpshufb t4, x0, x0; \
+ vpshufb t4, x7, x7; \
+ vpshufb t4, x1, x1; \
+ vpshufb t4, x4, x4; \
+ vpshufb t4, x2, x2; \
+ vpshufb t4, x5, x5; \
+ vpshufb t4, x3, x3; \
+ vpshufb t4, x6, x6; \
+ \
+ /* prefilter sboxes 1, 2 and 3 */ \
+ vmovdqa .Lpre_tf_lo_s4(%rip), t2; \
+ vmovdqa .Lpre_tf_hi_s4(%rip), t3; \
+ filter_8bit(x0, t0, t1, t7, t6); \
+ filter_8bit(x7, t0, t1, t7, t6); \
+ filter_8bit(x1, t0, t1, t7, t6); \
+ filter_8bit(x4, t0, t1, t7, t6); \
+ filter_8bit(x2, t0, t1, t7, t6); \
+ filter_8bit(x5, t0, t1, t7, t6); \
+ \
+ /* prefilter sbox 4 */ \
+ vpxor t4, t4, t4; \
+ filter_8bit(x3, t2, t3, t7, t6); \
+ filter_8bit(x6, t2, t3, t7, t6); \
+ \
+ /* AES subbytes + AES shift rows */ \
+ vmovdqa .Lpost_tf_lo_s1(%rip), t0; \
+ vmovdqa .Lpost_tf_hi_s1(%rip), t1; \
+ vaesenclast t4, x0, x0; \
+ vaesenclast t4, x7, x7; \
+ vaesenclast t4, x1, x1; \
+ vaesenclast t4, x4, x4; \
+ vaesenclast t4, x2, x2; \
+ vaesenclast t4, x5, x5; \
+ vaesenclast t4, x3, x3; \
+ vaesenclast t4, x6, x6; \
+ \
+ /* postfilter sboxes 1 and 4 */ \
+ vmovdqa .Lpost_tf_lo_s3(%rip), t2; \
+ vmovdqa .Lpost_tf_hi_s3(%rip), t3; \
+ filter_8bit(x0, t0, t1, t7, t6); \
+ filter_8bit(x7, t0, t1, t7, t6); \
+ filter_8bit(x3, t0, t1, t7, t6); \
+ filter_8bit(x6, t0, t1, t7, t6); \
+ \
+ /* postfilter sbox 3 */ \
+ vmovdqa .Lpost_tf_lo_s2(%rip), t4; \
+ vmovdqa .Lpost_tf_hi_s2(%rip), t5; \
+ filter_8bit(x2, t2, t3, t7, t6); \
+ filter_8bit(x5, t2, t3, t7, t6); \
+ \
+ vpxor t6, t6, t6; \
+ vmovq key, t0; \
+ \
+ /* postfilter sbox 2 */ \
+ filter_8bit(x1, t4, t5, t7, t2); \
+ filter_8bit(x4, t4, t5, t7, t2); \
+ \
+ vpsrldq $5, t0, t5; \
+ vpsrldq $1, t0, t1; \
+ vpsrldq $2, t0, t2; \
+ vpsrldq $3, t0, t3; \
+ vpsrldq $4, t0, t4; \
+ vpshufb t6, t0, t0; \
+ vpshufb t6, t1, t1; \
+ vpshufb t6, t2, t2; \
+ vpshufb t6, t3, t3; \
+ vpshufb t6, t4, t4; \
+ vpsrldq $2, t5, t7; \
+ vpshufb t6, t7, t7; \
+ \
+ /* \
+ * P-function \
+ */ \
+ vpxor x5, x0, x0; \
+ vpxor x6, x1, x1; \
+ vpxor x7, x2, x2; \
+ vpxor x4, x3, x3; \
+ \
+ vpxor x2, x4, x4; \
+ vpxor x3, x5, x5; \
+ vpxor x0, x6, x6; \
+ vpxor x1, x7, x7; \
+ \
+ vpxor x7, x0, x0; \
+ vpxor x4, x1, x1; \
+ vpxor x5, x2, x2; \
+ vpxor x6, x3, x3; \
+ \
+ vpxor x3, x4, x4; \
+ vpxor x0, x5, x5; \
+ vpxor x1, x6, x6; \
+ vpxor x2, x7, x7; /* note: high and low parts swapped */ \
+ \
+ /* \
+ * Add key material and result to CD (x becomes new CD) \
+ */ \
+ \
+ vpxor t3, x4, x4; \
+ vpxor 0 * 16(mem_cd), x4, x4; \
+ \
+ vpxor t2, x5, x5; \
+ vpxor 1 * 16(mem_cd), x5, x5; \
+ \
+ vpsrldq $1, t5, t3; \
+ vpshufb t6, t5, t5; \
+ vpshufb t6, t3, t6; \
+ \
+ vpxor t1, x6, x6; \
+ vpxor 2 * 16(mem_cd), x6, x6; \
+ \
+ vpxor t0, x7, x7; \
+ vpxor 3 * 16(mem_cd), x7, x7; \
+ \
+ vpxor t7, x0, x0; \
+ vpxor 4 * 16(mem_cd), x0, x0; \
+ \
+ vpxor t6, x1, x1; \
+ vpxor 5 * 16(mem_cd), x1, x1; \
+ \
+ vpxor t5, x2, x2; \
+ vpxor 6 * 16(mem_cd), x2, x2; \
+ \
+ vpxor t4, x3, x3; \
+ vpxor 7 * 16(mem_cd), x3, x3;
+
+/*
+ * Size optimization... with inlined roundsm16, binary would be over 5 times
+ * larger and would only be 0.5% faster (on sandy-bridge).
+ */
+.align 8
+SYM_FUNC_START_LOCAL(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
+ roundsm16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14, %xmm15,
+ %rcx, (%r9));
+ RET;
+SYM_FUNC_END(roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
+
+.align 8
+SYM_FUNC_START_LOCAL(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
+ roundsm16(%xmm4, %xmm5, %xmm6, %xmm7, %xmm0, %xmm1, %xmm2, %xmm3,
+ %xmm12, %xmm13, %xmm14, %xmm15, %xmm8, %xmm9, %xmm10, %xmm11,
+ %rax, (%r9));
+ RET;
+SYM_FUNC_END(roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
+
+/*
+ * IN/OUT:
+ * x0..x7: byte-sliced AB state preloaded
+ * mem_ab: byte-sliced AB state in memory
+ * mem_cb: byte-sliced CD state in memory
+ */
+#define two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, i, dir, store_ab) \
+ leaq (key_table + (i) * 8)(CTX), %r9; \
+ call roundsm16_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd; \
+ \
+ vmovdqu x4, 0 * 16(mem_cd); \
+ vmovdqu x5, 1 * 16(mem_cd); \
+ vmovdqu x6, 2 * 16(mem_cd); \
+ vmovdqu x7, 3 * 16(mem_cd); \
+ vmovdqu x0, 4 * 16(mem_cd); \
+ vmovdqu x1, 5 * 16(mem_cd); \
+ vmovdqu x2, 6 * 16(mem_cd); \
+ vmovdqu x3, 7 * 16(mem_cd); \
+ \
+ leaq (key_table + ((i) + (dir)) * 8)(CTX), %r9; \
+ call roundsm16_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab; \
+ \
+ store_ab(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab);
+
+#define dummy_store(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) /* do nothing */
+
+#define store_ab_state(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) \
+ /* Store new AB state */ \
+ vmovdqu x0, 0 * 16(mem_ab); \
+ vmovdqu x1, 1 * 16(mem_ab); \
+ vmovdqu x2, 2 * 16(mem_ab); \
+ vmovdqu x3, 3 * 16(mem_ab); \
+ vmovdqu x4, 4 * 16(mem_ab); \
+ vmovdqu x5, 5 * 16(mem_ab); \
+ vmovdqu x6, 6 * 16(mem_ab); \
+ vmovdqu x7, 7 * 16(mem_ab);
+
+#define enc_rounds16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, i) \
+ two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 2, 1, store_ab_state); \
+ two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 4, 1, store_ab_state); \
+ two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 6, 1, dummy_store);
+
+#define dec_rounds16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, i) \
+ two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 7, -1, store_ab_state); \
+ two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 5, -1, store_ab_state); \
+ two_roundsm16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 3, -1, dummy_store);
+
+/*
+ * IN:
+ * v0..3: byte-sliced 32-bit integers
+ * OUT:
+ * v0..3: (IN <<< 1)
+ */
+#define rol32_1_16(v0, v1, v2, v3, t0, t1, t2, zero) \
+ vpcmpgtb v0, zero, t0; \
+ vpaddb v0, v0, v0; \
+ vpabsb t0, t0; \
+ \
+ vpcmpgtb v1, zero, t1; \
+ vpaddb v1, v1, v1; \
+ vpabsb t1, t1; \
+ \
+ vpcmpgtb v2, zero, t2; \
+ vpaddb v2, v2, v2; \
+ vpabsb t2, t2; \
+ \
+ vpor t0, v1, v1; \
+ \
+ vpcmpgtb v3, zero, t0; \
+ vpaddb v3, v3, v3; \
+ vpabsb t0, t0; \
+ \
+ vpor t1, v2, v2; \
+ vpor t2, v3, v3; \
+ vpor t0, v0, v0;
+
+/*
+ * IN:
+ * r: byte-sliced AB state in memory
+ * l: byte-sliced CD state in memory
+ * OUT:
+ * x0..x7: new byte-sliced CD state
+ */
+#define fls16(l, l0, l1, l2, l3, l4, l5, l6, l7, r, t0, t1, t2, t3, tt0, \
+ tt1, tt2, tt3, kll, klr, krl, krr) \
+ /* \
+ * t0 = kll; \
+ * t0 &= ll; \
+ * lr ^= rol32(t0, 1); \
+ */ \
+ vpxor tt0, tt0, tt0; \
+ vmovd kll, t0; \
+ vpshufb tt0, t0, t3; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t2; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t1; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t0; \
+ \
+ vpand l0, t0, t0; \
+ vpand l1, t1, t1; \
+ vpand l2, t2, t2; \
+ vpand l3, t3, t3; \
+ \
+ rol32_1_16(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \
+ \
+ vpxor l4, t0, l4; \
+ vmovdqu l4, 4 * 16(l); \
+ vpxor l5, t1, l5; \
+ vmovdqu l5, 5 * 16(l); \
+ vpxor l6, t2, l6; \
+ vmovdqu l6, 6 * 16(l); \
+ vpxor l7, t3, l7; \
+ vmovdqu l7, 7 * 16(l); \
+ \
+ /* \
+ * t2 = krr; \
+ * t2 |= rr; \
+ * rl ^= t2; \
+ */ \
+ \
+ vmovd krr, t0; \
+ vpshufb tt0, t0, t3; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t2; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t1; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t0; \
+ \
+ vpor 4 * 16(r), t0, t0; \
+ vpor 5 * 16(r), t1, t1; \
+ vpor 6 * 16(r), t2, t2; \
+ vpor 7 * 16(r), t3, t3; \
+ \
+ vpxor 0 * 16(r), t0, t0; \
+ vpxor 1 * 16(r), t1, t1; \
+ vpxor 2 * 16(r), t2, t2; \
+ vpxor 3 * 16(r), t3, t3; \
+ vmovdqu t0, 0 * 16(r); \
+ vmovdqu t1, 1 * 16(r); \
+ vmovdqu t2, 2 * 16(r); \
+ vmovdqu t3, 3 * 16(r); \
+ \
+ /* \
+ * t2 = krl; \
+ * t2 &= rl; \
+ * rr ^= rol32(t2, 1); \
+ */ \
+ vmovd krl, t0; \
+ vpshufb tt0, t0, t3; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t2; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t1; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t0; \
+ \
+ vpand 0 * 16(r), t0, t0; \
+ vpand 1 * 16(r), t1, t1; \
+ vpand 2 * 16(r), t2, t2; \
+ vpand 3 * 16(r), t3, t3; \
+ \
+ rol32_1_16(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \
+ \
+ vpxor 4 * 16(r), t0, t0; \
+ vpxor 5 * 16(r), t1, t1; \
+ vpxor 6 * 16(r), t2, t2; \
+ vpxor 7 * 16(r), t3, t3; \
+ vmovdqu t0, 4 * 16(r); \
+ vmovdqu t1, 5 * 16(r); \
+ vmovdqu t2, 6 * 16(r); \
+ vmovdqu t3, 7 * 16(r); \
+ \
+ /* \
+ * t0 = klr; \
+ * t0 |= lr; \
+ * ll ^= t0; \
+ */ \
+ \
+ vmovd klr, t0; \
+ vpshufb tt0, t0, t3; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t2; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t1; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t0; \
+ \
+ vpor l4, t0, t0; \
+ vpor l5, t1, t1; \
+ vpor l6, t2, t2; \
+ vpor l7, t3, t3; \
+ \
+ vpxor l0, t0, l0; \
+ vmovdqu l0, 0 * 16(l); \
+ vpxor l1, t1, l1; \
+ vmovdqu l1, 1 * 16(l); \
+ vpxor l2, t2, l2; \
+ vmovdqu l2, 2 * 16(l); \
+ vpxor l3, t3, l3; \
+ vmovdqu l3, 3 * 16(l);
+
+#define transpose_4x4(x0, x1, x2, x3, t1, t2) \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x1, x0, x0; \
+ \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x2; \
+ \
+ vpunpckhqdq t1, x0, x1; \
+ vpunpcklqdq t1, x0, x0; \
+ \
+ vpunpckhqdq x2, t2, x3; \
+ vpunpcklqdq x2, t2, x2;
+
+#define byteslice_16x16b(a0, b0, c0, d0, a1, b1, c1, d1, a2, b2, c2, d2, a3, \
+ b3, c3, d3, st0, st1) \
+ vmovdqu d2, st0; \
+ vmovdqu d3, st1; \
+ transpose_4x4(a0, a1, a2, a3, d2, d3); \
+ transpose_4x4(b0, b1, b2, b3, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu a0, st0; \
+ vmovdqu a1, st1; \
+ transpose_4x4(c0, c1, c2, c3, a0, a1); \
+ transpose_4x4(d0, d1, d2, d3, a0, a1); \
+ \
+ vmovdqu .Lshufb_16x16b(%rip), a0; \
+ vmovdqu st1, a1; \
+ vpshufb a0, a2, a2; \
+ vpshufb a0, a3, a3; \
+ vpshufb a0, b0, b0; \
+ vpshufb a0, b1, b1; \
+ vpshufb a0, b2, b2; \
+ vpshufb a0, b3, b3; \
+ vpshufb a0, a1, a1; \
+ vpshufb a0, c0, c0; \
+ vpshufb a0, c1, c1; \
+ vpshufb a0, c2, c2; \
+ vpshufb a0, c3, c3; \
+ vpshufb a0, d0, d0; \
+ vpshufb a0, d1, d1; \
+ vpshufb a0, d2, d2; \
+ vpshufb a0, d3, d3; \
+ vmovdqu d3, st1; \
+ vmovdqu st0, d3; \
+ vpshufb a0, d3, a0; \
+ vmovdqu d2, st0; \
+ \
+ transpose_4x4(a0, b0, c0, d0, d2, d3); \
+ transpose_4x4(a1, b1, c1, d1, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu b0, st0; \
+ vmovdqu b1, st1; \
+ transpose_4x4(a2, b2, c2, d2, b0, b1); \
+ transpose_4x4(a3, b3, c3, d3, b0, b1); \
+ vmovdqu st0, b0; \
+ vmovdqu st1, b1; \
+ /* does not adjust output bytes inside vectors */
+
+/* load blocks to registers and apply pre-whitening */
+#define inpack16_pre(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, rio, key) \
+ vmovq key, x0; \
+ vpshufb .Lpack_bswap(%rip), x0, x0; \
+ \
+ vpxor 0 * 16(rio), x0, y7; \
+ vpxor 1 * 16(rio), x0, y6; \
+ vpxor 2 * 16(rio), x0, y5; \
+ vpxor 3 * 16(rio), x0, y4; \
+ vpxor 4 * 16(rio), x0, y3; \
+ vpxor 5 * 16(rio), x0, y2; \
+ vpxor 6 * 16(rio), x0, y1; \
+ vpxor 7 * 16(rio), x0, y0; \
+ vpxor 8 * 16(rio), x0, x7; \
+ vpxor 9 * 16(rio), x0, x6; \
+ vpxor 10 * 16(rio), x0, x5; \
+ vpxor 11 * 16(rio), x0, x4; \
+ vpxor 12 * 16(rio), x0, x3; \
+ vpxor 13 * 16(rio), x0, x2; \
+ vpxor 14 * 16(rio), x0, x1; \
+ vpxor 15 * 16(rio), x0, x0;
+
+/* byteslice pre-whitened blocks and store to temporary memory */
+#define inpack16_post(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd) \
+ byteslice_16x16b(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, \
+ y5, y6, y7, (mem_ab), (mem_cd)); \
+ \
+ vmovdqu x0, 0 * 16(mem_ab); \
+ vmovdqu x1, 1 * 16(mem_ab); \
+ vmovdqu x2, 2 * 16(mem_ab); \
+ vmovdqu x3, 3 * 16(mem_ab); \
+ vmovdqu x4, 4 * 16(mem_ab); \
+ vmovdqu x5, 5 * 16(mem_ab); \
+ vmovdqu x6, 6 * 16(mem_ab); \
+ vmovdqu x7, 7 * 16(mem_ab); \
+ vmovdqu y0, 0 * 16(mem_cd); \
+ vmovdqu y1, 1 * 16(mem_cd); \
+ vmovdqu y2, 2 * 16(mem_cd); \
+ vmovdqu y3, 3 * 16(mem_cd); \
+ vmovdqu y4, 4 * 16(mem_cd); \
+ vmovdqu y5, 5 * 16(mem_cd); \
+ vmovdqu y6, 6 * 16(mem_cd); \
+ vmovdqu y7, 7 * 16(mem_cd);
+
+/* de-byteslice, apply post-whitening and store blocks */
+#define outunpack16(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, \
+ y5, y6, y7, key, stack_tmp0, stack_tmp1) \
+ byteslice_16x16b(y0, y4, x0, x4, y1, y5, x1, x5, y2, y6, x2, x6, y3, \
+ y7, x3, x7, stack_tmp0, stack_tmp1); \
+ \
+ vmovdqu x0, stack_tmp0; \
+ \
+ vmovq key, x0; \
+ vpshufb .Lpack_bswap(%rip), x0, x0; \
+ \
+ vpxor x0, y7, y7; \
+ vpxor x0, y6, y6; \
+ vpxor x0, y5, y5; \
+ vpxor x0, y4, y4; \
+ vpxor x0, y3, y3; \
+ vpxor x0, y2, y2; \
+ vpxor x0, y1, y1; \
+ vpxor x0, y0, y0; \
+ vpxor x0, x7, x7; \
+ vpxor x0, x6, x6; \
+ vpxor x0, x5, x5; \
+ vpxor x0, x4, x4; \
+ vpxor x0, x3, x3; \
+ vpxor x0, x2, x2; \
+ vpxor x0, x1, x1; \
+ vpxor stack_tmp0, x0, x0;
+
+#define write_output(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, rio) \
+ vmovdqu x0, 0 * 16(rio); \
+ vmovdqu x1, 1 * 16(rio); \
+ vmovdqu x2, 2 * 16(rio); \
+ vmovdqu x3, 3 * 16(rio); \
+ vmovdqu x4, 4 * 16(rio); \
+ vmovdqu x5, 5 * 16(rio); \
+ vmovdqu x6, 6 * 16(rio); \
+ vmovdqu x7, 7 * 16(rio); \
+ vmovdqu y0, 8 * 16(rio); \
+ vmovdqu y1, 9 * 16(rio); \
+ vmovdqu y2, 10 * 16(rio); \
+ vmovdqu y3, 11 * 16(rio); \
+ vmovdqu y4, 12 * 16(rio); \
+ vmovdqu y5, 13 * 16(rio); \
+ vmovdqu y6, 14 * 16(rio); \
+ vmovdqu y7, 15 * 16(rio);
+
+
+/* NB: section is mergeable, all elements must be aligned 16-byte blocks */
+.section .rodata.cst16, "aM", @progbits, 16
+.align 16
+
+#define SHUFB_BYTES(idx) \
+ 0 + (idx), 4 + (idx), 8 + (idx), 12 + (idx)
+
+.Lshufb_16x16b:
+ .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3);
+
+.Lpack_bswap:
+ .long 0x00010203
+ .long 0x04050607
+ .long 0x80808080
+ .long 0x80808080
+
+/*
+ * pre-SubByte transform
+ *
+ * pre-lookup for sbox1, sbox2, sbox3:
+ * swap_bitendianness(
+ * isom_map_camellia_to_aes(
+ * camellia_f(
+ * swap_bitendianess(in)
+ * )
+ * )
+ * )
+ *
+ * (note: 'āŠ• 0xc5' inside camellia_f())
+ */
+.Lpre_tf_lo_s1:
+ .byte 0x45, 0xe8, 0x40, 0xed, 0x2e, 0x83, 0x2b, 0x86
+ .byte 0x4b, 0xe6, 0x4e, 0xe3, 0x20, 0x8d, 0x25, 0x88
+.Lpre_tf_hi_s1:
+ .byte 0x00, 0x51, 0xf1, 0xa0, 0x8a, 0xdb, 0x7b, 0x2a
+ .byte 0x09, 0x58, 0xf8, 0xa9, 0x83, 0xd2, 0x72, 0x23
+
+/*
+ * pre-SubByte transform
+ *
+ * pre-lookup for sbox4:
+ * swap_bitendianness(
+ * isom_map_camellia_to_aes(
+ * camellia_f(
+ * swap_bitendianess(in <<< 1)
+ * )
+ * )
+ * )
+ *
+ * (note: 'āŠ• 0xc5' inside camellia_f())
+ */
+.Lpre_tf_lo_s4:
+ .byte 0x45, 0x40, 0x2e, 0x2b, 0x4b, 0x4e, 0x20, 0x25
+ .byte 0x14, 0x11, 0x7f, 0x7a, 0x1a, 0x1f, 0x71, 0x74
+.Lpre_tf_hi_s4:
+ .byte 0x00, 0xf1, 0x8a, 0x7b, 0x09, 0xf8, 0x83, 0x72
+ .byte 0xad, 0x5c, 0x27, 0xd6, 0xa4, 0x55, 0x2e, 0xdf
+
+/*
+ * post-SubByte transform
+ *
+ * post-lookup for sbox1, sbox4:
+ * swap_bitendianness(
+ * camellia_h(
+ * isom_map_aes_to_camellia(
+ * swap_bitendianness(
+ * aes_inverse_affine_transform(in)
+ * )
+ * )
+ * )
+ * )
+ *
+ * (note: 'āŠ• 0x6e' inside camellia_h())
+ */
+.Lpost_tf_lo_s1:
+ .byte 0x3c, 0xcc, 0xcf, 0x3f, 0x32, 0xc2, 0xc1, 0x31
+ .byte 0xdc, 0x2c, 0x2f, 0xdf, 0xd2, 0x22, 0x21, 0xd1
+.Lpost_tf_hi_s1:
+ .byte 0x00, 0xf9, 0x86, 0x7f, 0xd7, 0x2e, 0x51, 0xa8
+ .byte 0xa4, 0x5d, 0x22, 0xdb, 0x73, 0x8a, 0xf5, 0x0c
+
+/*
+ * post-SubByte transform
+ *
+ * post-lookup for sbox2:
+ * swap_bitendianness(
+ * camellia_h(
+ * isom_map_aes_to_camellia(
+ * swap_bitendianness(
+ * aes_inverse_affine_transform(in)
+ * )
+ * )
+ * )
+ * ) <<< 1
+ *
+ * (note: 'āŠ• 0x6e' inside camellia_h())
+ */
+.Lpost_tf_lo_s2:
+ .byte 0x78, 0x99, 0x9f, 0x7e, 0x64, 0x85, 0x83, 0x62
+ .byte 0xb9, 0x58, 0x5e, 0xbf, 0xa5, 0x44, 0x42, 0xa3
+.Lpost_tf_hi_s2:
+ .byte 0x00, 0xf3, 0x0d, 0xfe, 0xaf, 0x5c, 0xa2, 0x51
+ .byte 0x49, 0xba, 0x44, 0xb7, 0xe6, 0x15, 0xeb, 0x18
+
+/*
+ * post-SubByte transform
+ *
+ * post-lookup for sbox3:
+ * swap_bitendianness(
+ * camellia_h(
+ * isom_map_aes_to_camellia(
+ * swap_bitendianness(
+ * aes_inverse_affine_transform(in)
+ * )
+ * )
+ * )
+ * ) >>> 1
+ *
+ * (note: 'āŠ• 0x6e' inside camellia_h())
+ */
+.Lpost_tf_lo_s3:
+ .byte 0x1e, 0x66, 0xe7, 0x9f, 0x19, 0x61, 0xe0, 0x98
+ .byte 0x6e, 0x16, 0x97, 0xef, 0x69, 0x11, 0x90, 0xe8
+.Lpost_tf_hi_s3:
+ .byte 0x00, 0xfc, 0x43, 0xbf, 0xeb, 0x17, 0xa8, 0x54
+ .byte 0x52, 0xae, 0x11, 0xed, 0xb9, 0x45, 0xfa, 0x06
+
+/* For isolating SubBytes from AESENCLAST, inverse shift row */
+.Linv_shift_row:
+ .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b
+ .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03
+
+/* 4-bit mask */
+.section .rodata.cst4.L0f0f0f0f, "aM", @progbits, 4
+.align 4
+.L0f0f0f0f:
+ .long 0x0f0f0f0f
+
+.text
+
+SYM_FUNC_START_LOCAL(__camellia_enc_blk16)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rax: temporary storage, 256 bytes
+ * %xmm0..%xmm15: 16 plaintext blocks
+ * output:
+ * %xmm0..%xmm15: 16 encrypted blocks, order swapped:
+ * 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8
+ */
+ FRAME_BEGIN
+
+ leaq 8 * 16(%rax), %rcx;
+
+ inpack16_post(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %rcx);
+
+ enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %rcx, 0);
+
+ fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15,
+ ((key_table + (8) * 8) + 0)(CTX),
+ ((key_table + (8) * 8) + 4)(CTX),
+ ((key_table + (8) * 8) + 8)(CTX),
+ ((key_table + (8) * 8) + 12)(CTX));
+
+ enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %rcx, 8);
+
+ fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15,
+ ((key_table + (16) * 8) + 0)(CTX),
+ ((key_table + (16) * 8) + 4)(CTX),
+ ((key_table + (16) * 8) + 8)(CTX),
+ ((key_table + (16) * 8) + 12)(CTX));
+
+ enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %rcx, 16);
+
+ movl $24, %r8d;
+ cmpl $16, key_length(CTX);
+ jne .Lenc_max32;
+
+.Lenc_done:
+ /* load CD for output */
+ vmovdqu 0 * 16(%rcx), %xmm8;
+ vmovdqu 1 * 16(%rcx), %xmm9;
+ vmovdqu 2 * 16(%rcx), %xmm10;
+ vmovdqu 3 * 16(%rcx), %xmm11;
+ vmovdqu 4 * 16(%rcx), %xmm12;
+ vmovdqu 5 * 16(%rcx), %xmm13;
+ vmovdqu 6 * 16(%rcx), %xmm14;
+ vmovdqu 7 * 16(%rcx), %xmm15;
+
+ outunpack16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 16(%rax));
+
+ FRAME_END
+ RET;
+
+.align 8
+.Lenc_max32:
+ movl $32, %r8d;
+
+ fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15,
+ ((key_table + (24) * 8) + 0)(CTX),
+ ((key_table + (24) * 8) + 4)(CTX),
+ ((key_table + (24) * 8) + 8)(CTX),
+ ((key_table + (24) * 8) + 12)(CTX));
+
+ enc_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %rcx, 24);
+
+ jmp .Lenc_done;
+SYM_FUNC_END(__camellia_enc_blk16)
+
+SYM_FUNC_START_LOCAL(__camellia_dec_blk16)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rax: temporary storage, 256 bytes
+ * %r8d: 24 for 16 byte key, 32 for larger
+ * %xmm0..%xmm15: 16 encrypted blocks
+ * output:
+ * %xmm0..%xmm15: 16 plaintext blocks, order swapped:
+ * 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8
+ */
+ FRAME_BEGIN
+
+ leaq 8 * 16(%rax), %rcx;
+
+ inpack16_post(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %rcx);
+
+ cmpl $32, %r8d;
+ je .Ldec_max32;
+
+.Ldec_max24:
+ dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %rcx, 16);
+
+ fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15,
+ ((key_table + (16) * 8) + 8)(CTX),
+ ((key_table + (16) * 8) + 12)(CTX),
+ ((key_table + (16) * 8) + 0)(CTX),
+ ((key_table + (16) * 8) + 4)(CTX));
+
+ dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %rcx, 8);
+
+ fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15,
+ ((key_table + (8) * 8) + 8)(CTX),
+ ((key_table + (8) * 8) + 12)(CTX),
+ ((key_table + (8) * 8) + 0)(CTX),
+ ((key_table + (8) * 8) + 4)(CTX));
+
+ dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %rcx, 0);
+
+ /* load CD for output */
+ vmovdqu 0 * 16(%rcx), %xmm8;
+ vmovdqu 1 * 16(%rcx), %xmm9;
+ vmovdqu 2 * 16(%rcx), %xmm10;
+ vmovdqu 3 * 16(%rcx), %xmm11;
+ vmovdqu 4 * 16(%rcx), %xmm12;
+ vmovdqu 5 * 16(%rcx), %xmm13;
+ vmovdqu 6 * 16(%rcx), %xmm14;
+ vmovdqu 7 * 16(%rcx), %xmm15;
+
+ outunpack16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, (key_table)(CTX), (%rax), 1 * 16(%rax));
+
+ FRAME_END
+ RET;
+
+.align 8
+.Ldec_max32:
+ dec_rounds16(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rax, %rcx, 24);
+
+ fls16(%rax, %xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %rcx, %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15,
+ ((key_table + (24) * 8) + 8)(CTX),
+ ((key_table + (24) * 8) + 12)(CTX),
+ ((key_table + (24) * 8) + 0)(CTX),
+ ((key_table + (24) * 8) + 4)(CTX));
+
+ jmp .Ldec_max24;
+SYM_FUNC_END(__camellia_dec_blk16)
+
+SYM_FUNC_START(camellia_ecb_enc_16way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst (16 blocks)
+ * %rdx: src (16 blocks)
+ */
+ FRAME_BEGIN
+
+ inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rdx, (key_table)(CTX));
+
+ /* now dst can be used as temporary buffer (even in src == dst case) */
+ movq %rsi, %rax;
+
+ call __camellia_enc_blk16;
+
+ write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0,
+ %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
+ %xmm8, %rsi);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(camellia_ecb_enc_16way)
+
+SYM_FUNC_START(camellia_ecb_dec_16way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst (16 blocks)
+ * %rdx: src (16 blocks)
+ */
+ FRAME_BEGIN
+
+ cmpl $16, key_length(CTX);
+ movl $32, %r8d;
+ movl $24, %eax;
+ cmovel %eax, %r8d; /* max */
+
+ inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rdx, (key_table)(CTX, %r8, 8));
+
+ /* now dst can be used as temporary buffer (even in src == dst case) */
+ movq %rsi, %rax;
+
+ call __camellia_dec_blk16;
+
+ write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0,
+ %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
+ %xmm8, %rsi);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(camellia_ecb_dec_16way)
+
+SYM_FUNC_START(camellia_cbc_dec_16way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst (16 blocks)
+ * %rdx: src (16 blocks)
+ */
+ FRAME_BEGIN
+
+ cmpl $16, key_length(CTX);
+ movl $32, %r8d;
+ movl $24, %eax;
+ cmovel %eax, %r8d; /* max */
+
+ inpack16_pre(%xmm0, %xmm1, %xmm2, %xmm3, %xmm4, %xmm5, %xmm6, %xmm7,
+ %xmm8, %xmm9, %xmm10, %xmm11, %xmm12, %xmm13, %xmm14,
+ %xmm15, %rdx, (key_table)(CTX, %r8, 8));
+
+ /*
+ * dst might still be in-use (in case dst == src), so use stack for
+ * temporary storage.
+ */
+ subq $(16 * 16), %rsp;
+ movq %rsp, %rax;
+
+ call __camellia_dec_blk16;
+
+ addq $(16 * 16), %rsp;
+
+ vpxor (0 * 16)(%rdx), %xmm6, %xmm6;
+ vpxor (1 * 16)(%rdx), %xmm5, %xmm5;
+ vpxor (2 * 16)(%rdx), %xmm4, %xmm4;
+ vpxor (3 * 16)(%rdx), %xmm3, %xmm3;
+ vpxor (4 * 16)(%rdx), %xmm2, %xmm2;
+ vpxor (5 * 16)(%rdx), %xmm1, %xmm1;
+ vpxor (6 * 16)(%rdx), %xmm0, %xmm0;
+ vpxor (7 * 16)(%rdx), %xmm15, %xmm15;
+ vpxor (8 * 16)(%rdx), %xmm14, %xmm14;
+ vpxor (9 * 16)(%rdx), %xmm13, %xmm13;
+ vpxor (10 * 16)(%rdx), %xmm12, %xmm12;
+ vpxor (11 * 16)(%rdx), %xmm11, %xmm11;
+ vpxor (12 * 16)(%rdx), %xmm10, %xmm10;
+ vpxor (13 * 16)(%rdx), %xmm9, %xmm9;
+ vpxor (14 * 16)(%rdx), %xmm8, %xmm8;
+ write_output(%xmm7, %xmm6, %xmm5, %xmm4, %xmm3, %xmm2, %xmm1, %xmm0,
+ %xmm15, %xmm14, %xmm13, %xmm12, %xmm11, %xmm10, %xmm9,
+ %xmm8, %rsi);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(camellia_cbc_dec_16way)
diff --git a/arch/x86/crypto/camellia-aesni-avx2-asm_64.S b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
new file mode 100644
index 000000000000..a0eb94e53b1b
--- /dev/null
+++ b/arch/x86/crypto/camellia-aesni-avx2-asm_64.S
@@ -0,0 +1,1047 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * x86_64/AVX2/AES-NI assembler implementation of Camellia
+ *
+ * Copyright Ā© 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+
+#define CAMELLIA_TABLE_BYTE_LEN 272
+
+/* struct camellia_ctx: */
+#define key_table 0
+#define key_length CAMELLIA_TABLE_BYTE_LEN
+
+/* register macros */
+#define CTX %rdi
+#define RIO %r8
+
+/**********************************************************************
+ helper macros
+ **********************************************************************/
+#define filter_8bit(x, lo_t, hi_t, mask4bit, tmp0) \
+ vpand x, mask4bit, tmp0; \
+ vpandn x, mask4bit, x; \
+ vpsrld $4, x, x; \
+ \
+ vpshufb tmp0, lo_t, tmp0; \
+ vpshufb x, hi_t, x; \
+ vpxor tmp0, x, x;
+
+#define ymm0_x xmm0
+#define ymm1_x xmm1
+#define ymm2_x xmm2
+#define ymm3_x xmm3
+#define ymm4_x xmm4
+#define ymm5_x xmm5
+#define ymm6_x xmm6
+#define ymm7_x xmm7
+#define ymm8_x xmm8
+#define ymm9_x xmm9
+#define ymm10_x xmm10
+#define ymm11_x xmm11
+#define ymm12_x xmm12
+#define ymm13_x xmm13
+#define ymm14_x xmm14
+#define ymm15_x xmm15
+
+/**********************************************************************
+ 32-way camellia
+ **********************************************************************/
+
+/*
+ * IN:
+ * x0..x7: byte-sliced AB state
+ * mem_cd: register pointer storing CD state
+ * key: index for key material
+ * OUT:
+ * x0..x7: new byte-sliced CD state
+ */
+#define roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, t0, t1, t2, t3, t4, t5, t6, \
+ t7, mem_cd, key) \
+ /* \
+ * S-function with AES subbytes \
+ */ \
+ vbroadcasti128 .Linv_shift_row(%rip), t4; \
+ vpbroadcastd .L0f0f0f0f(%rip), t7; \
+ vbroadcasti128 .Lpre_tf_lo_s1(%rip), t5; \
+ vbroadcasti128 .Lpre_tf_hi_s1(%rip), t6; \
+ vbroadcasti128 .Lpre_tf_lo_s4(%rip), t2; \
+ vbroadcasti128 .Lpre_tf_hi_s4(%rip), t3; \
+ \
+ /* AES inverse shift rows */ \
+ vpshufb t4, x0, x0; \
+ vpshufb t4, x7, x7; \
+ vpshufb t4, x3, x3; \
+ vpshufb t4, x6, x6; \
+ vpshufb t4, x2, x2; \
+ vpshufb t4, x5, x5; \
+ vpshufb t4, x1, x1; \
+ vpshufb t4, x4, x4; \
+ \
+ /* prefilter sboxes 1, 2 and 3 */ \
+ /* prefilter sbox 4 */ \
+ filter_8bit(x0, t5, t6, t7, t4); \
+ filter_8bit(x7, t5, t6, t7, t4); \
+ vextracti128 $1, x0, t0##_x; \
+ vextracti128 $1, x7, t1##_x; \
+ filter_8bit(x3, t2, t3, t7, t4); \
+ filter_8bit(x6, t2, t3, t7, t4); \
+ vextracti128 $1, x3, t3##_x; \
+ vextracti128 $1, x6, t2##_x; \
+ filter_8bit(x2, t5, t6, t7, t4); \
+ filter_8bit(x5, t5, t6, t7, t4); \
+ filter_8bit(x1, t5, t6, t7, t4); \
+ filter_8bit(x4, t5, t6, t7, t4); \
+ \
+ vpxor t4##_x, t4##_x, t4##_x; \
+ \
+ /* AES subbytes + AES shift rows */ \
+ vextracti128 $1, x2, t6##_x; \
+ vextracti128 $1, x5, t5##_x; \
+ vaesenclast t4##_x, x0##_x, x0##_x; \
+ vaesenclast t4##_x, t0##_x, t0##_x; \
+ vinserti128 $1, t0##_x, x0, x0; \
+ vaesenclast t4##_x, x7##_x, x7##_x; \
+ vaesenclast t4##_x, t1##_x, t1##_x; \
+ vinserti128 $1, t1##_x, x7, x7; \
+ vaesenclast t4##_x, x3##_x, x3##_x; \
+ vaesenclast t4##_x, t3##_x, t3##_x; \
+ vinserti128 $1, t3##_x, x3, x3; \
+ vaesenclast t4##_x, x6##_x, x6##_x; \
+ vaesenclast t4##_x, t2##_x, t2##_x; \
+ vinserti128 $1, t2##_x, x6, x6; \
+ vextracti128 $1, x1, t3##_x; \
+ vextracti128 $1, x4, t2##_x; \
+ vbroadcasti128 .Lpost_tf_lo_s1(%rip), t0; \
+ vbroadcasti128 .Lpost_tf_hi_s1(%rip), t1; \
+ vaesenclast t4##_x, x2##_x, x2##_x; \
+ vaesenclast t4##_x, t6##_x, t6##_x; \
+ vinserti128 $1, t6##_x, x2, x2; \
+ vaesenclast t4##_x, x5##_x, x5##_x; \
+ vaesenclast t4##_x, t5##_x, t5##_x; \
+ vinserti128 $1, t5##_x, x5, x5; \
+ vaesenclast t4##_x, x1##_x, x1##_x; \
+ vaesenclast t4##_x, t3##_x, t3##_x; \
+ vinserti128 $1, t3##_x, x1, x1; \
+ vaesenclast t4##_x, x4##_x, x4##_x; \
+ vaesenclast t4##_x, t2##_x, t2##_x; \
+ vinserti128 $1, t2##_x, x4, x4; \
+ \
+ /* postfilter sboxes 1 and 4 */ \
+ vbroadcasti128 .Lpost_tf_lo_s3(%rip), t2; \
+ vbroadcasti128 .Lpost_tf_hi_s3(%rip), t3; \
+ filter_8bit(x0, t0, t1, t7, t6); \
+ filter_8bit(x7, t0, t1, t7, t6); \
+ filter_8bit(x3, t0, t1, t7, t6); \
+ filter_8bit(x6, t0, t1, t7, t6); \
+ \
+ /* postfilter sbox 3 */ \
+ vbroadcasti128 .Lpost_tf_lo_s2(%rip), t4; \
+ vbroadcasti128 .Lpost_tf_hi_s2(%rip), t5; \
+ filter_8bit(x2, t2, t3, t7, t6); \
+ filter_8bit(x5, t2, t3, t7, t6); \
+ \
+ vpbroadcastq key, t0; /* higher 64-bit duplicate ignored */ \
+ \
+ /* postfilter sbox 2 */ \
+ filter_8bit(x1, t4, t5, t7, t2); \
+ filter_8bit(x4, t4, t5, t7, t2); \
+ vpxor t7, t7, t7; \
+ \
+ vpsrldq $1, t0, t1; \
+ vpsrldq $2, t0, t2; \
+ vpshufb t7, t1, t1; \
+ vpsrldq $3, t0, t3; \
+ \
+ /* P-function */ \
+ vpxor x5, x0, x0; \
+ vpxor x6, x1, x1; \
+ vpxor x7, x2, x2; \
+ vpxor x4, x3, x3; \
+ \
+ vpshufb t7, t2, t2; \
+ vpsrldq $4, t0, t4; \
+ vpshufb t7, t3, t3; \
+ vpsrldq $5, t0, t5; \
+ vpshufb t7, t4, t4; \
+ \
+ vpxor x2, x4, x4; \
+ vpxor x3, x5, x5; \
+ vpxor x0, x6, x6; \
+ vpxor x1, x7, x7; \
+ \
+ vpsrldq $6, t0, t6; \
+ vpshufb t7, t5, t5; \
+ vpshufb t7, t6, t6; \
+ \
+ vpxor x7, x0, x0; \
+ vpxor x4, x1, x1; \
+ vpxor x5, x2, x2; \
+ vpxor x6, x3, x3; \
+ \
+ vpxor x3, x4, x4; \
+ vpxor x0, x5, x5; \
+ vpxor x1, x6, x6; \
+ vpxor x2, x7, x7; /* note: high and low parts swapped */ \
+ \
+ /* Add key material and result to CD (x becomes new CD) */ \
+ \
+ vpxor t6, x1, x1; \
+ vpxor 5 * 32(mem_cd), x1, x1; \
+ \
+ vpsrldq $7, t0, t6; \
+ vpshufb t7, t0, t0; \
+ vpshufb t7, t6, t7; \
+ \
+ vpxor t7, x0, x0; \
+ vpxor 4 * 32(mem_cd), x0, x0; \
+ \
+ vpxor t5, x2, x2; \
+ vpxor 6 * 32(mem_cd), x2, x2; \
+ \
+ vpxor t4, x3, x3; \
+ vpxor 7 * 32(mem_cd), x3, x3; \
+ \
+ vpxor t3, x4, x4; \
+ vpxor 0 * 32(mem_cd), x4, x4; \
+ \
+ vpxor t2, x5, x5; \
+ vpxor 1 * 32(mem_cd), x5, x5; \
+ \
+ vpxor t1, x6, x6; \
+ vpxor 2 * 32(mem_cd), x6, x6; \
+ \
+ vpxor t0, x7, x7; \
+ vpxor 3 * 32(mem_cd), x7, x7;
+
+/*
+ * Size optimization... with inlined roundsm32 binary would be over 5 times
+ * larger and would only marginally faster.
+ */
+SYM_FUNC_START_LOCAL(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
+ roundsm32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14, %ymm15,
+ %rcx, (%r9));
+ RET;
+SYM_FUNC_END(roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd)
+
+SYM_FUNC_START_LOCAL(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
+ roundsm32(%ymm4, %ymm5, %ymm6, %ymm7, %ymm0, %ymm1, %ymm2, %ymm3,
+ %ymm12, %ymm13, %ymm14, %ymm15, %ymm8, %ymm9, %ymm10, %ymm11,
+ %rax, (%r9));
+ RET;
+SYM_FUNC_END(roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab)
+
+/*
+ * IN/OUT:
+ * x0..x7: byte-sliced AB state preloaded
+ * mem_ab: byte-sliced AB state in memory
+ * mem_cb: byte-sliced CD state in memory
+ */
+#define two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, i, dir, store_ab) \
+ leaq (key_table + (i) * 8)(CTX), %r9; \
+ call roundsm32_x0_x1_x2_x3_x4_x5_x6_x7_y0_y1_y2_y3_y4_y5_y6_y7_cd; \
+ \
+ vmovdqu x0, 4 * 32(mem_cd); \
+ vmovdqu x1, 5 * 32(mem_cd); \
+ vmovdqu x2, 6 * 32(mem_cd); \
+ vmovdqu x3, 7 * 32(mem_cd); \
+ vmovdqu x4, 0 * 32(mem_cd); \
+ vmovdqu x5, 1 * 32(mem_cd); \
+ vmovdqu x6, 2 * 32(mem_cd); \
+ vmovdqu x7, 3 * 32(mem_cd); \
+ \
+ leaq (key_table + ((i) + (dir)) * 8)(CTX), %r9; \
+ call roundsm32_x4_x5_x6_x7_x0_x1_x2_x3_y4_y5_y6_y7_y0_y1_y2_y3_ab; \
+ \
+ store_ab(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab);
+
+#define dummy_store(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) /* do nothing */
+
+#define store_ab_state(x0, x1, x2, x3, x4, x5, x6, x7, mem_ab) \
+ /* Store new AB state */ \
+ vmovdqu x4, 4 * 32(mem_ab); \
+ vmovdqu x5, 5 * 32(mem_ab); \
+ vmovdqu x6, 6 * 32(mem_ab); \
+ vmovdqu x7, 7 * 32(mem_ab); \
+ vmovdqu x0, 0 * 32(mem_ab); \
+ vmovdqu x1, 1 * 32(mem_ab); \
+ vmovdqu x2, 2 * 32(mem_ab); \
+ vmovdqu x3, 3 * 32(mem_ab);
+
+#define enc_rounds32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, i) \
+ two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 2, 1, store_ab_state); \
+ two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 4, 1, store_ab_state); \
+ two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 6, 1, dummy_store);
+
+#define dec_rounds32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, i) \
+ two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 7, -1, store_ab_state); \
+ two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 5, -1, store_ab_state); \
+ two_roundsm32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd, (i) + 3, -1, dummy_store);
+
+/*
+ * IN:
+ * v0..3: byte-sliced 32-bit integers
+ * OUT:
+ * v0..3: (IN <<< 1)
+ */
+#define rol32_1_32(v0, v1, v2, v3, t0, t1, t2, zero) \
+ vpcmpgtb v0, zero, t0; \
+ vpaddb v0, v0, v0; \
+ vpabsb t0, t0; \
+ \
+ vpcmpgtb v1, zero, t1; \
+ vpaddb v1, v1, v1; \
+ vpabsb t1, t1; \
+ \
+ vpcmpgtb v2, zero, t2; \
+ vpaddb v2, v2, v2; \
+ vpabsb t2, t2; \
+ \
+ vpor t0, v1, v1; \
+ \
+ vpcmpgtb v3, zero, t0; \
+ vpaddb v3, v3, v3; \
+ vpabsb t0, t0; \
+ \
+ vpor t1, v2, v2; \
+ vpor t2, v3, v3; \
+ vpor t0, v0, v0;
+
+/*
+ * IN:
+ * r: byte-sliced AB state in memory
+ * l: byte-sliced CD state in memory
+ * OUT:
+ * x0..x7: new byte-sliced CD state
+ */
+#define fls32(l, l0, l1, l2, l3, l4, l5, l6, l7, r, t0, t1, t2, t3, tt0, \
+ tt1, tt2, tt3, kll, klr, krl, krr) \
+ /* \
+ * t0 = kll; \
+ * t0 &= ll; \
+ * lr ^= rol32(t0, 1); \
+ */ \
+ vpbroadcastd kll, t0; /* only lowest 32-bit used */ \
+ vpxor tt0, tt0, tt0; \
+ vpshufb tt0, t0, t3; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t2; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t1; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t0; \
+ \
+ vpand l0, t0, t0; \
+ vpand l1, t1, t1; \
+ vpand l2, t2, t2; \
+ vpand l3, t3, t3; \
+ \
+ rol32_1_32(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \
+ \
+ vpxor l4, t0, l4; \
+ vpbroadcastd krr, t0; /* only lowest 32-bit used */ \
+ vmovdqu l4, 4 * 32(l); \
+ vpxor l5, t1, l5; \
+ vmovdqu l5, 5 * 32(l); \
+ vpxor l6, t2, l6; \
+ vmovdqu l6, 6 * 32(l); \
+ vpxor l7, t3, l7; \
+ vmovdqu l7, 7 * 32(l); \
+ \
+ /* \
+ * t2 = krr; \
+ * t2 |= rr; \
+ * rl ^= t2; \
+ */ \
+ \
+ vpshufb tt0, t0, t3; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t2; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t1; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t0; \
+ \
+ vpor 4 * 32(r), t0, t0; \
+ vpor 5 * 32(r), t1, t1; \
+ vpor 6 * 32(r), t2, t2; \
+ vpor 7 * 32(r), t3, t3; \
+ \
+ vpxor 0 * 32(r), t0, t0; \
+ vpxor 1 * 32(r), t1, t1; \
+ vpxor 2 * 32(r), t2, t2; \
+ vpxor 3 * 32(r), t3, t3; \
+ vmovdqu t0, 0 * 32(r); \
+ vpbroadcastd krl, t0; /* only lowest 32-bit used */ \
+ vmovdqu t1, 1 * 32(r); \
+ vmovdqu t2, 2 * 32(r); \
+ vmovdqu t3, 3 * 32(r); \
+ \
+ /* \
+ * t2 = krl; \
+ * t2 &= rl; \
+ * rr ^= rol32(t2, 1); \
+ */ \
+ vpshufb tt0, t0, t3; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t2; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t1; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t0; \
+ \
+ vpand 0 * 32(r), t0, t0; \
+ vpand 1 * 32(r), t1, t1; \
+ vpand 2 * 32(r), t2, t2; \
+ vpand 3 * 32(r), t3, t3; \
+ \
+ rol32_1_32(t3, t2, t1, t0, tt1, tt2, tt3, tt0); \
+ \
+ vpxor 4 * 32(r), t0, t0; \
+ vpxor 5 * 32(r), t1, t1; \
+ vpxor 6 * 32(r), t2, t2; \
+ vpxor 7 * 32(r), t3, t3; \
+ vmovdqu t0, 4 * 32(r); \
+ vpbroadcastd klr, t0; /* only lowest 32-bit used */ \
+ vmovdqu t1, 5 * 32(r); \
+ vmovdqu t2, 6 * 32(r); \
+ vmovdqu t3, 7 * 32(r); \
+ \
+ /* \
+ * t0 = klr; \
+ * t0 |= lr; \
+ * ll ^= t0; \
+ */ \
+ \
+ vpshufb tt0, t0, t3; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t2; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t1; \
+ vpsrldq $1, t0, t0; \
+ vpshufb tt0, t0, t0; \
+ \
+ vpor l4, t0, t0; \
+ vpor l5, t1, t1; \
+ vpor l6, t2, t2; \
+ vpor l7, t3, t3; \
+ \
+ vpxor l0, t0, l0; \
+ vmovdqu l0, 0 * 32(l); \
+ vpxor l1, t1, l1; \
+ vmovdqu l1, 1 * 32(l); \
+ vpxor l2, t2, l2; \
+ vmovdqu l2, 2 * 32(l); \
+ vpxor l3, t3, l3; \
+ vmovdqu l3, 3 * 32(l);
+
+#define transpose_4x4(x0, x1, x2, x3, t1, t2) \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x1, x0, x0; \
+ \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x2; \
+ \
+ vpunpckhqdq t1, x0, x1; \
+ vpunpcklqdq t1, x0, x0; \
+ \
+ vpunpckhqdq x2, t2, x3; \
+ vpunpcklqdq x2, t2, x2;
+
+#define byteslice_16x16b_fast(a0, b0, c0, d0, a1, b1, c1, d1, a2, b2, c2, d2, \
+ a3, b3, c3, d3, st0, st1) \
+ vmovdqu d2, st0; \
+ vmovdqu d3, st1; \
+ transpose_4x4(a0, a1, a2, a3, d2, d3); \
+ transpose_4x4(b0, b1, b2, b3, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu a0, st0; \
+ vmovdqu a1, st1; \
+ transpose_4x4(c0, c1, c2, c3, a0, a1); \
+ transpose_4x4(d0, d1, d2, d3, a0, a1); \
+ \
+ vbroadcasti128 .Lshufb_16x16b(%rip), a0; \
+ vmovdqu st1, a1; \
+ vpshufb a0, a2, a2; \
+ vpshufb a0, a3, a3; \
+ vpshufb a0, b0, b0; \
+ vpshufb a0, b1, b1; \
+ vpshufb a0, b2, b2; \
+ vpshufb a0, b3, b3; \
+ vpshufb a0, a1, a1; \
+ vpshufb a0, c0, c0; \
+ vpshufb a0, c1, c1; \
+ vpshufb a0, c2, c2; \
+ vpshufb a0, c3, c3; \
+ vpshufb a0, d0, d0; \
+ vpshufb a0, d1, d1; \
+ vpshufb a0, d2, d2; \
+ vpshufb a0, d3, d3; \
+ vmovdqu d3, st1; \
+ vmovdqu st0, d3; \
+ vpshufb a0, d3, a0; \
+ vmovdqu d2, st0; \
+ \
+ transpose_4x4(a0, b0, c0, d0, d2, d3); \
+ transpose_4x4(a1, b1, c1, d1, d2, d3); \
+ vmovdqu st0, d2; \
+ vmovdqu st1, d3; \
+ \
+ vmovdqu b0, st0; \
+ vmovdqu b1, st1; \
+ transpose_4x4(a2, b2, c2, d2, b0, b1); \
+ transpose_4x4(a3, b3, c3, d3, b0, b1); \
+ vmovdqu st0, b0; \
+ vmovdqu st1, b1; \
+ /* does not adjust output bytes inside vectors */
+
+/* load blocks to registers and apply pre-whitening */
+#define inpack32_pre(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, rio, key) \
+ vpbroadcastq key, x0; \
+ vpshufb .Lpack_bswap(%rip), x0, x0; \
+ \
+ vpxor 0 * 32(rio), x0, y7; \
+ vpxor 1 * 32(rio), x0, y6; \
+ vpxor 2 * 32(rio), x0, y5; \
+ vpxor 3 * 32(rio), x0, y4; \
+ vpxor 4 * 32(rio), x0, y3; \
+ vpxor 5 * 32(rio), x0, y2; \
+ vpxor 6 * 32(rio), x0, y1; \
+ vpxor 7 * 32(rio), x0, y0; \
+ vpxor 8 * 32(rio), x0, x7; \
+ vpxor 9 * 32(rio), x0, x6; \
+ vpxor 10 * 32(rio), x0, x5; \
+ vpxor 11 * 32(rio), x0, x4; \
+ vpxor 12 * 32(rio), x0, x3; \
+ vpxor 13 * 32(rio), x0, x2; \
+ vpxor 14 * 32(rio), x0, x1; \
+ vpxor 15 * 32(rio), x0, x0;
+
+/* byteslice pre-whitened blocks and store to temporary memory */
+#define inpack32_post(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, mem_ab, mem_cd) \
+ byteslice_16x16b_fast(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, \
+ y4, y5, y6, y7, (mem_ab), (mem_cd)); \
+ \
+ vmovdqu x0, 0 * 32(mem_ab); \
+ vmovdqu x1, 1 * 32(mem_ab); \
+ vmovdqu x2, 2 * 32(mem_ab); \
+ vmovdqu x3, 3 * 32(mem_ab); \
+ vmovdqu x4, 4 * 32(mem_ab); \
+ vmovdqu x5, 5 * 32(mem_ab); \
+ vmovdqu x6, 6 * 32(mem_ab); \
+ vmovdqu x7, 7 * 32(mem_ab); \
+ vmovdqu y0, 0 * 32(mem_cd); \
+ vmovdqu y1, 1 * 32(mem_cd); \
+ vmovdqu y2, 2 * 32(mem_cd); \
+ vmovdqu y3, 3 * 32(mem_cd); \
+ vmovdqu y4, 4 * 32(mem_cd); \
+ vmovdqu y5, 5 * 32(mem_cd); \
+ vmovdqu y6, 6 * 32(mem_cd); \
+ vmovdqu y7, 7 * 32(mem_cd);
+
+/* de-byteslice, apply post-whitening and store blocks */
+#define outunpack32(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, \
+ y5, y6, y7, key, stack_tmp0, stack_tmp1) \
+ byteslice_16x16b_fast(y0, y4, x0, x4, y1, y5, x1, x5, y2, y6, x2, x6, \
+ y3, y7, x3, x7, stack_tmp0, stack_tmp1); \
+ \
+ vmovdqu x0, stack_tmp0; \
+ \
+ vpbroadcastq key, x0; \
+ vpshufb .Lpack_bswap(%rip), x0, x0; \
+ \
+ vpxor x0, y7, y7; \
+ vpxor x0, y6, y6; \
+ vpxor x0, y5, y5; \
+ vpxor x0, y4, y4; \
+ vpxor x0, y3, y3; \
+ vpxor x0, y2, y2; \
+ vpxor x0, y1, y1; \
+ vpxor x0, y0, y0; \
+ vpxor x0, x7, x7; \
+ vpxor x0, x6, x6; \
+ vpxor x0, x5, x5; \
+ vpxor x0, x4, x4; \
+ vpxor x0, x3, x3; \
+ vpxor x0, x2, x2; \
+ vpxor x0, x1, x1; \
+ vpxor stack_tmp0, x0, x0;
+
+#define write_output(x0, x1, x2, x3, x4, x5, x6, x7, y0, y1, y2, y3, y4, y5, \
+ y6, y7, rio) \
+ vmovdqu x0, 0 * 32(rio); \
+ vmovdqu x1, 1 * 32(rio); \
+ vmovdqu x2, 2 * 32(rio); \
+ vmovdqu x3, 3 * 32(rio); \
+ vmovdqu x4, 4 * 32(rio); \
+ vmovdqu x5, 5 * 32(rio); \
+ vmovdqu x6, 6 * 32(rio); \
+ vmovdqu x7, 7 * 32(rio); \
+ vmovdqu y0, 8 * 32(rio); \
+ vmovdqu y1, 9 * 32(rio); \
+ vmovdqu y2, 10 * 32(rio); \
+ vmovdqu y3, 11 * 32(rio); \
+ vmovdqu y4, 12 * 32(rio); \
+ vmovdqu y5, 13 * 32(rio); \
+ vmovdqu y6, 14 * 32(rio); \
+ vmovdqu y7, 15 * 32(rio);
+
+
+.section .rodata.cst32.shufb_16x16b, "aM", @progbits, 32
+.align 32
+#define SHUFB_BYTES(idx) \
+ 0 + (idx), 4 + (idx), 8 + (idx), 12 + (idx)
+.Lshufb_16x16b:
+ .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3)
+ .byte SHUFB_BYTES(0), SHUFB_BYTES(1), SHUFB_BYTES(2), SHUFB_BYTES(3)
+
+.section .rodata.cst32.pack_bswap, "aM", @progbits, 32
+.align 32
+.Lpack_bswap:
+ .long 0x00010203, 0x04050607, 0x80808080, 0x80808080
+ .long 0x00010203, 0x04050607, 0x80808080, 0x80808080
+
+/* NB: section is mergeable, all elements must be aligned 16-byte blocks */
+.section .rodata.cst16, "aM", @progbits, 16
+.align 16
+
+/*
+ * pre-SubByte transform
+ *
+ * pre-lookup for sbox1, sbox2, sbox3:
+ * swap_bitendianness(
+ * isom_map_camellia_to_aes(
+ * camellia_f(
+ * swap_bitendianess(in)
+ * )
+ * )
+ * )
+ *
+ * (note: 'āŠ• 0xc5' inside camellia_f())
+ */
+.Lpre_tf_lo_s1:
+ .byte 0x45, 0xe8, 0x40, 0xed, 0x2e, 0x83, 0x2b, 0x86
+ .byte 0x4b, 0xe6, 0x4e, 0xe3, 0x20, 0x8d, 0x25, 0x88
+.Lpre_tf_hi_s1:
+ .byte 0x00, 0x51, 0xf1, 0xa0, 0x8a, 0xdb, 0x7b, 0x2a
+ .byte 0x09, 0x58, 0xf8, 0xa9, 0x83, 0xd2, 0x72, 0x23
+
+/*
+ * pre-SubByte transform
+ *
+ * pre-lookup for sbox4:
+ * swap_bitendianness(
+ * isom_map_camellia_to_aes(
+ * camellia_f(
+ * swap_bitendianess(in <<< 1)
+ * )
+ * )
+ * )
+ *
+ * (note: 'āŠ• 0xc5' inside camellia_f())
+ */
+.Lpre_tf_lo_s4:
+ .byte 0x45, 0x40, 0x2e, 0x2b, 0x4b, 0x4e, 0x20, 0x25
+ .byte 0x14, 0x11, 0x7f, 0x7a, 0x1a, 0x1f, 0x71, 0x74
+.Lpre_tf_hi_s4:
+ .byte 0x00, 0xf1, 0x8a, 0x7b, 0x09, 0xf8, 0x83, 0x72
+ .byte 0xad, 0x5c, 0x27, 0xd6, 0xa4, 0x55, 0x2e, 0xdf
+
+/*
+ * post-SubByte transform
+ *
+ * post-lookup for sbox1, sbox4:
+ * swap_bitendianness(
+ * camellia_h(
+ * isom_map_aes_to_camellia(
+ * swap_bitendianness(
+ * aes_inverse_affine_transform(in)
+ * )
+ * )
+ * )
+ * )
+ *
+ * (note: 'āŠ• 0x6e' inside camellia_h())
+ */
+.Lpost_tf_lo_s1:
+ .byte 0x3c, 0xcc, 0xcf, 0x3f, 0x32, 0xc2, 0xc1, 0x31
+ .byte 0xdc, 0x2c, 0x2f, 0xdf, 0xd2, 0x22, 0x21, 0xd1
+.Lpost_tf_hi_s1:
+ .byte 0x00, 0xf9, 0x86, 0x7f, 0xd7, 0x2e, 0x51, 0xa8
+ .byte 0xa4, 0x5d, 0x22, 0xdb, 0x73, 0x8a, 0xf5, 0x0c
+
+/*
+ * post-SubByte transform
+ *
+ * post-lookup for sbox2:
+ * swap_bitendianness(
+ * camellia_h(
+ * isom_map_aes_to_camellia(
+ * swap_bitendianness(
+ * aes_inverse_affine_transform(in)
+ * )
+ * )
+ * )
+ * ) <<< 1
+ *
+ * (note: 'āŠ• 0x6e' inside camellia_h())
+ */
+.Lpost_tf_lo_s2:
+ .byte 0x78, 0x99, 0x9f, 0x7e, 0x64, 0x85, 0x83, 0x62
+ .byte 0xb9, 0x58, 0x5e, 0xbf, 0xa5, 0x44, 0x42, 0xa3
+.Lpost_tf_hi_s2:
+ .byte 0x00, 0xf3, 0x0d, 0xfe, 0xaf, 0x5c, 0xa2, 0x51
+ .byte 0x49, 0xba, 0x44, 0xb7, 0xe6, 0x15, 0xeb, 0x18
+
+/*
+ * post-SubByte transform
+ *
+ * post-lookup for sbox3:
+ * swap_bitendianness(
+ * camellia_h(
+ * isom_map_aes_to_camellia(
+ * swap_bitendianness(
+ * aes_inverse_affine_transform(in)
+ * )
+ * )
+ * )
+ * ) >>> 1
+ *
+ * (note: 'āŠ• 0x6e' inside camellia_h())
+ */
+.Lpost_tf_lo_s3:
+ .byte 0x1e, 0x66, 0xe7, 0x9f, 0x19, 0x61, 0xe0, 0x98
+ .byte 0x6e, 0x16, 0x97, 0xef, 0x69, 0x11, 0x90, 0xe8
+.Lpost_tf_hi_s3:
+ .byte 0x00, 0xfc, 0x43, 0xbf, 0xeb, 0x17, 0xa8, 0x54
+ .byte 0x52, 0xae, 0x11, 0xed, 0xb9, 0x45, 0xfa, 0x06
+
+/* For isolating SubBytes from AESENCLAST, inverse shift row */
+.Linv_shift_row:
+ .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b
+ .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03
+
+.section .rodata.cst4.L0f0f0f0f, "aM", @progbits, 4
+.align 4
+/* 4-bit mask */
+.L0f0f0f0f:
+ .long 0x0f0f0f0f
+
+.text
+
+SYM_FUNC_START_LOCAL(__camellia_enc_blk32)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rax: temporary storage, 512 bytes
+ * %ymm0..%ymm15: 32 plaintext blocks
+ * output:
+ * %ymm0..%ymm15: 32 encrypted blocks, order swapped:
+ * 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8
+ */
+ FRAME_BEGIN
+
+ leaq 8 * 32(%rax), %rcx;
+
+ inpack32_post(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %rcx);
+
+ enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %rcx, 0);
+
+ fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15,
+ ((key_table + (8) * 8) + 0)(CTX),
+ ((key_table + (8) * 8) + 4)(CTX),
+ ((key_table + (8) * 8) + 8)(CTX),
+ ((key_table + (8) * 8) + 12)(CTX));
+
+ enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %rcx, 8);
+
+ fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15,
+ ((key_table + (16) * 8) + 0)(CTX),
+ ((key_table + (16) * 8) + 4)(CTX),
+ ((key_table + (16) * 8) + 8)(CTX),
+ ((key_table + (16) * 8) + 12)(CTX));
+
+ enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %rcx, 16);
+
+ movl $24, %r8d;
+ cmpl $16, key_length(CTX);
+ jne .Lenc_max32;
+
+.Lenc_done:
+ /* load CD for output */
+ vmovdqu 0 * 32(%rcx), %ymm8;
+ vmovdqu 1 * 32(%rcx), %ymm9;
+ vmovdqu 2 * 32(%rcx), %ymm10;
+ vmovdqu 3 * 32(%rcx), %ymm11;
+ vmovdqu 4 * 32(%rcx), %ymm12;
+ vmovdqu 5 * 32(%rcx), %ymm13;
+ vmovdqu 6 * 32(%rcx), %ymm14;
+ vmovdqu 7 * 32(%rcx), %ymm15;
+
+ outunpack32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, (key_table)(CTX, %r8, 8), (%rax), 1 * 32(%rax));
+
+ FRAME_END
+ RET;
+
+.align 8
+.Lenc_max32:
+ movl $32, %r8d;
+
+ fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15,
+ ((key_table + (24) * 8) + 0)(CTX),
+ ((key_table + (24) * 8) + 4)(CTX),
+ ((key_table + (24) * 8) + 8)(CTX),
+ ((key_table + (24) * 8) + 12)(CTX));
+
+ enc_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %rcx, 24);
+
+ jmp .Lenc_done;
+SYM_FUNC_END(__camellia_enc_blk32)
+
+SYM_FUNC_START_LOCAL(__camellia_dec_blk32)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rax: temporary storage, 512 bytes
+ * %r8d: 24 for 16 byte key, 32 for larger
+ * %ymm0..%ymm15: 16 encrypted blocks
+ * output:
+ * %ymm0..%ymm15: 16 plaintext blocks, order swapped:
+ * 7, 8, 6, 5, 4, 3, 2, 1, 0, 15, 14, 13, 12, 11, 10, 9, 8
+ */
+ FRAME_BEGIN
+
+ leaq 8 * 32(%rax), %rcx;
+
+ inpack32_post(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %rcx);
+
+ cmpl $32, %r8d;
+ je .Ldec_max32;
+
+.Ldec_max24:
+ dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %rcx, 16);
+
+ fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15,
+ ((key_table + (16) * 8) + 8)(CTX),
+ ((key_table + (16) * 8) + 12)(CTX),
+ ((key_table + (16) * 8) + 0)(CTX),
+ ((key_table + (16) * 8) + 4)(CTX));
+
+ dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %rcx, 8);
+
+ fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15,
+ ((key_table + (8) * 8) + 8)(CTX),
+ ((key_table + (8) * 8) + 12)(CTX),
+ ((key_table + (8) * 8) + 0)(CTX),
+ ((key_table + (8) * 8) + 4)(CTX));
+
+ dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %rcx, 0);
+
+ /* load CD for output */
+ vmovdqu 0 * 32(%rcx), %ymm8;
+ vmovdqu 1 * 32(%rcx), %ymm9;
+ vmovdqu 2 * 32(%rcx), %ymm10;
+ vmovdqu 3 * 32(%rcx), %ymm11;
+ vmovdqu 4 * 32(%rcx), %ymm12;
+ vmovdqu 5 * 32(%rcx), %ymm13;
+ vmovdqu 6 * 32(%rcx), %ymm14;
+ vmovdqu 7 * 32(%rcx), %ymm15;
+
+ outunpack32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, (key_table)(CTX), (%rax), 1 * 32(%rax));
+
+ FRAME_END
+ RET;
+
+.align 8
+.Ldec_max32:
+ dec_rounds32(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rax, %rcx, 24);
+
+ fls32(%rax, %ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %rcx, %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15,
+ ((key_table + (24) * 8) + 8)(CTX),
+ ((key_table + (24) * 8) + 12)(CTX),
+ ((key_table + (24) * 8) + 0)(CTX),
+ ((key_table + (24) * 8) + 4)(CTX));
+
+ jmp .Ldec_max24;
+SYM_FUNC_END(__camellia_dec_blk32)
+
+SYM_FUNC_START(camellia_ecb_enc_32way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst (32 blocks)
+ * %rdx: src (32 blocks)
+ */
+ FRAME_BEGIN
+
+ vzeroupper;
+
+ inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rdx, (key_table)(CTX));
+
+ /* now dst can be used as temporary buffer (even in src == dst case) */
+ movq %rsi, %rax;
+
+ call __camellia_enc_blk32;
+
+ write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
+ %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
+ %ymm8, %rsi);
+
+ vzeroupper;
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(camellia_ecb_enc_32way)
+
+SYM_FUNC_START(camellia_ecb_dec_32way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst (32 blocks)
+ * %rdx: src (32 blocks)
+ */
+ FRAME_BEGIN
+
+ vzeroupper;
+
+ cmpl $16, key_length(CTX);
+ movl $32, %r8d;
+ movl $24, %eax;
+ cmovel %eax, %r8d; /* max */
+
+ inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rdx, (key_table)(CTX, %r8, 8));
+
+ /* now dst can be used as temporary buffer (even in src == dst case) */
+ movq %rsi, %rax;
+
+ call __camellia_dec_blk32;
+
+ write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
+ %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
+ %ymm8, %rsi);
+
+ vzeroupper;
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(camellia_ecb_dec_32way)
+
+SYM_FUNC_START(camellia_cbc_dec_32way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst (32 blocks)
+ * %rdx: src (32 blocks)
+ */
+ FRAME_BEGIN
+ subq $(16 * 32), %rsp;
+
+ vzeroupper;
+
+ cmpl $16, key_length(CTX);
+ movl $32, %r8d;
+ movl $24, %eax;
+ cmovel %eax, %r8d; /* max */
+
+ inpack32_pre(%ymm0, %ymm1, %ymm2, %ymm3, %ymm4, %ymm5, %ymm6, %ymm7,
+ %ymm8, %ymm9, %ymm10, %ymm11, %ymm12, %ymm13, %ymm14,
+ %ymm15, %rdx, (key_table)(CTX, %r8, 8));
+
+ cmpq %rsi, %rdx;
+ je .Lcbc_dec_use_stack;
+
+ /* dst can be used as temporary storage, src is not overwritten. */
+ movq %rsi, %rax;
+ jmp .Lcbc_dec_continue;
+
+.Lcbc_dec_use_stack:
+ /*
+ * dst still in-use (because dst == src), so use stack for temporary
+ * storage.
+ */
+ movq %rsp, %rax;
+
+.Lcbc_dec_continue:
+ call __camellia_dec_blk32;
+
+ vmovdqu %ymm7, (%rax);
+ vpxor %ymm7, %ymm7, %ymm7;
+ vinserti128 $1, (%rdx), %ymm7, %ymm7;
+ vpxor (%rax), %ymm7, %ymm7;
+ vpxor (0 * 32 + 16)(%rdx), %ymm6, %ymm6;
+ vpxor (1 * 32 + 16)(%rdx), %ymm5, %ymm5;
+ vpxor (2 * 32 + 16)(%rdx), %ymm4, %ymm4;
+ vpxor (3 * 32 + 16)(%rdx), %ymm3, %ymm3;
+ vpxor (4 * 32 + 16)(%rdx), %ymm2, %ymm2;
+ vpxor (5 * 32 + 16)(%rdx), %ymm1, %ymm1;
+ vpxor (6 * 32 + 16)(%rdx), %ymm0, %ymm0;
+ vpxor (7 * 32 + 16)(%rdx), %ymm15, %ymm15;
+ vpxor (8 * 32 + 16)(%rdx), %ymm14, %ymm14;
+ vpxor (9 * 32 + 16)(%rdx), %ymm13, %ymm13;
+ vpxor (10 * 32 + 16)(%rdx), %ymm12, %ymm12;
+ vpxor (11 * 32 + 16)(%rdx), %ymm11, %ymm11;
+ vpxor (12 * 32 + 16)(%rdx), %ymm10, %ymm10;
+ vpxor (13 * 32 + 16)(%rdx), %ymm9, %ymm9;
+ vpxor (14 * 32 + 16)(%rdx), %ymm8, %ymm8;
+ write_output(%ymm7, %ymm6, %ymm5, %ymm4, %ymm3, %ymm2, %ymm1, %ymm0,
+ %ymm15, %ymm14, %ymm13, %ymm12, %ymm11, %ymm10, %ymm9,
+ %ymm8, %rsi);
+
+ vzeroupper;
+
+ addq $(16 * 32), %rsp;
+ FRAME_END
+ RET;
+SYM_FUNC_END(camellia_cbc_dec_32way)
diff --git a/arch/x86/crypto/camellia-x86_64-asm_64.S b/arch/x86/crypto/camellia-x86_64-asm_64.S
new file mode 100644
index 000000000000..816b6bb8bded
--- /dev/null
+++ b/arch/x86/crypto/camellia-x86_64-asm_64.S
@@ -0,0 +1,501 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Camellia Cipher Algorithm (x86_64)
+ *
+ * Copyright (C) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ */
+
+#include <linux/linkage.h>
+
+.file "camellia-x86_64-asm_64.S"
+.text
+
+.extern camellia_sp10011110;
+.extern camellia_sp22000222;
+.extern camellia_sp03303033;
+.extern camellia_sp00444404;
+.extern camellia_sp02220222;
+.extern camellia_sp30333033;
+.extern camellia_sp44044404;
+.extern camellia_sp11101110;
+
+#define sp10011110 camellia_sp10011110
+#define sp22000222 camellia_sp22000222
+#define sp03303033 camellia_sp03303033
+#define sp00444404 camellia_sp00444404
+#define sp02220222 camellia_sp02220222
+#define sp30333033 camellia_sp30333033
+#define sp44044404 camellia_sp44044404
+#define sp11101110 camellia_sp11101110
+
+#define CAMELLIA_TABLE_BYTE_LEN 272
+
+/* struct camellia_ctx: */
+#define key_table 0
+#define key_length CAMELLIA_TABLE_BYTE_LEN
+
+/* register macros */
+#define CTX %rdi
+#define RIO %rsi
+#define RIOd %esi
+
+#define RAB0 %rax
+#define RCD0 %rcx
+#define RAB1 %rbx
+#define RCD1 %rdx
+
+#define RAB0d %eax
+#define RCD0d %ecx
+#define RAB1d %ebx
+#define RCD1d %edx
+
+#define RAB0bl %al
+#define RCD0bl %cl
+#define RAB1bl %bl
+#define RCD1bl %dl
+
+#define RAB0bh %ah
+#define RCD0bh %ch
+#define RAB1bh %bh
+#define RCD1bh %dh
+
+#define RT0 %rsi
+#define RT1 %r12
+#define RT2 %r8
+
+#define RT0d %esi
+#define RT1d %r12d
+#define RT2d %r8d
+
+#define RT2bl %r8b
+
+#define RXOR %r9
+#define RR12 %r10
+#define RDST %r11
+
+#define RXORd %r9d
+#define RXORbl %r9b
+
+#define xor2ror16(T0, T1, tmp1, tmp2, ab, dst) \
+ leaq T0(%rip), tmp1; \
+ movzbl ab ## bl, tmp2 ## d; \
+ xorq (tmp1, tmp2, 8), dst; \
+ leaq T1(%rip), tmp2; \
+ movzbl ab ## bh, tmp1 ## d; \
+ rorq $16, ab; \
+ xorq (tmp2, tmp1, 8), dst;
+
+/**********************************************************************
+ 1-way camellia
+ **********************************************************************/
+#define roundsm(ab, subkey, cd) \
+ movq (key_table + ((subkey) * 2) * 4)(CTX), RT2; \
+ \
+ xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 0, cd ## 0); \
+ xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 0, RT2); \
+ xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 0, cd ## 0); \
+ xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 0, RT2); \
+ \
+ xorq RT2, cd ## 0;
+
+#define fls(l, r, kl, kr) \
+ movl (key_table + ((kl) * 2) * 4)(CTX), RT0d; \
+ andl l ## 0d, RT0d; \
+ roll $1, RT0d; \
+ shlq $32, RT0; \
+ xorq RT0, l ## 0; \
+ movq (key_table + ((kr) * 2) * 4)(CTX), RT1; \
+ orq r ## 0, RT1; \
+ shrq $32, RT1; \
+ xorq RT1, r ## 0; \
+ \
+ movq (key_table + ((kl) * 2) * 4)(CTX), RT2; \
+ orq l ## 0, RT2; \
+ shrq $32, RT2; \
+ xorq RT2, l ## 0; \
+ movl (key_table + ((kr) * 2) * 4)(CTX), RT0d; \
+ andl r ## 0d, RT0d; \
+ roll $1, RT0d; \
+ shlq $32, RT0; \
+ xorq RT0, r ## 0;
+
+#define enc_rounds(i) \
+ roundsm(RAB, i + 2, RCD); \
+ roundsm(RCD, i + 3, RAB); \
+ roundsm(RAB, i + 4, RCD); \
+ roundsm(RCD, i + 5, RAB); \
+ roundsm(RAB, i + 6, RCD); \
+ roundsm(RCD, i + 7, RAB);
+
+#define enc_fls(i) \
+ fls(RAB, RCD, i + 0, i + 1);
+
+#define enc_inpack() \
+ movq (RIO), RAB0; \
+ bswapq RAB0; \
+ rolq $32, RAB0; \
+ movq 4*2(RIO), RCD0; \
+ bswapq RCD0; \
+ rorq $32, RCD0; \
+ xorq key_table(CTX), RAB0;
+
+#define enc_outunpack(op, max) \
+ xorq key_table(CTX, max, 8), RCD0; \
+ rorq $32, RCD0; \
+ bswapq RCD0; \
+ op ## q RCD0, (RIO); \
+ rolq $32, RAB0; \
+ bswapq RAB0; \
+ op ## q RAB0, 4*2(RIO);
+
+#define dec_rounds(i) \
+ roundsm(RAB, i + 7, RCD); \
+ roundsm(RCD, i + 6, RAB); \
+ roundsm(RAB, i + 5, RCD); \
+ roundsm(RCD, i + 4, RAB); \
+ roundsm(RAB, i + 3, RCD); \
+ roundsm(RCD, i + 2, RAB);
+
+#define dec_fls(i) \
+ fls(RAB, RCD, i + 1, i + 0);
+
+#define dec_inpack(max) \
+ movq (RIO), RAB0; \
+ bswapq RAB0; \
+ rolq $32, RAB0; \
+ movq 4*2(RIO), RCD0; \
+ bswapq RCD0; \
+ rorq $32, RCD0; \
+ xorq key_table(CTX, max, 8), RAB0;
+
+#define dec_outunpack() \
+ xorq key_table(CTX), RCD0; \
+ rorq $32, RCD0; \
+ bswapq RCD0; \
+ movq RCD0, (RIO); \
+ rolq $32, RAB0; \
+ bswapq RAB0; \
+ movq RAB0, 4*2(RIO);
+
+SYM_FUNC_START(__camellia_enc_blk)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: bool xor
+ */
+ movq %r12, RR12;
+
+ movq %rcx, RXOR;
+ movq %rsi, RDST;
+ movq %rdx, RIO;
+
+ enc_inpack();
+
+ enc_rounds(0);
+ enc_fls(8);
+ enc_rounds(8);
+ enc_fls(16);
+ enc_rounds(16);
+ movl $24, RT1d; /* max */
+
+ cmpb $16, key_length(CTX);
+ je .L__enc_done;
+
+ enc_fls(24);
+ enc_rounds(24);
+ movl $32, RT1d; /* max */
+
+.L__enc_done:
+ testb RXORbl, RXORbl;
+ movq RDST, RIO;
+
+ jnz .L__enc_xor;
+
+ enc_outunpack(mov, RT1);
+
+ movq RR12, %r12;
+ RET;
+
+.L__enc_xor:
+ enc_outunpack(xor, RT1);
+
+ movq RR12, %r12;
+ RET;
+SYM_FUNC_END(__camellia_enc_blk)
+
+SYM_FUNC_START(camellia_dec_blk)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ cmpl $16, key_length(CTX);
+ movl $32, RT2d;
+ movl $24, RXORd;
+ cmovel RXORd, RT2d; /* max */
+
+ movq %r12, RR12;
+ movq %rsi, RDST;
+ movq %rdx, RIO;
+
+ dec_inpack(RT2);
+
+ cmpb $24, RT2bl;
+ je .L__dec_rounds16;
+
+ dec_rounds(24);
+ dec_fls(24);
+
+.L__dec_rounds16:
+ dec_rounds(16);
+ dec_fls(16);
+ dec_rounds(8);
+ dec_fls(8);
+ dec_rounds(0);
+
+ movq RDST, RIO;
+
+ dec_outunpack();
+
+ movq RR12, %r12;
+ RET;
+SYM_FUNC_END(camellia_dec_blk)
+
+/**********************************************************************
+ 2-way camellia
+ **********************************************************************/
+#define roundsm2(ab, subkey, cd) \
+ movq (key_table + ((subkey) * 2) * 4)(CTX), RT2; \
+ xorq RT2, cd ## 1; \
+ \
+ xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 0, cd ## 0); \
+ xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 0, RT2); \
+ xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 0, cd ## 0); \
+ xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 0, RT2); \
+ \
+ xor2ror16(sp00444404, sp03303033, RT0, RT1, ab ## 1, cd ## 1); \
+ xorq RT2, cd ## 0; \
+ xor2ror16(sp22000222, sp10011110, RT0, RT1, ab ## 1, cd ## 1); \
+ xor2ror16(sp11101110, sp44044404, RT0, RT1, ab ## 1, cd ## 1); \
+ xor2ror16(sp30333033, sp02220222, RT0, RT1, ab ## 1, cd ## 1);
+
+#define fls2(l, r, kl, kr) \
+ movl (key_table + ((kl) * 2) * 4)(CTX), RT0d; \
+ andl l ## 0d, RT0d; \
+ roll $1, RT0d; \
+ shlq $32, RT0; \
+ xorq RT0, l ## 0; \
+ movq (key_table + ((kr) * 2) * 4)(CTX), RT1; \
+ orq r ## 0, RT1; \
+ shrq $32, RT1; \
+ xorq RT1, r ## 0; \
+ \
+ movl (key_table + ((kl) * 2) * 4)(CTX), RT2d; \
+ andl l ## 1d, RT2d; \
+ roll $1, RT2d; \
+ shlq $32, RT2; \
+ xorq RT2, l ## 1; \
+ movq (key_table + ((kr) * 2) * 4)(CTX), RT0; \
+ orq r ## 1, RT0; \
+ shrq $32, RT0; \
+ xorq RT0, r ## 1; \
+ \
+ movq (key_table + ((kl) * 2) * 4)(CTX), RT1; \
+ orq l ## 0, RT1; \
+ shrq $32, RT1; \
+ xorq RT1, l ## 0; \
+ movl (key_table + ((kr) * 2) * 4)(CTX), RT2d; \
+ andl r ## 0d, RT2d; \
+ roll $1, RT2d; \
+ shlq $32, RT2; \
+ xorq RT2, r ## 0; \
+ \
+ movq (key_table + ((kl) * 2) * 4)(CTX), RT0; \
+ orq l ## 1, RT0; \
+ shrq $32, RT0; \
+ xorq RT0, l ## 1; \
+ movl (key_table + ((kr) * 2) * 4)(CTX), RT1d; \
+ andl r ## 1d, RT1d; \
+ roll $1, RT1d; \
+ shlq $32, RT1; \
+ xorq RT1, r ## 1;
+
+#define enc_rounds2(i) \
+ roundsm2(RAB, i + 2, RCD); \
+ roundsm2(RCD, i + 3, RAB); \
+ roundsm2(RAB, i + 4, RCD); \
+ roundsm2(RCD, i + 5, RAB); \
+ roundsm2(RAB, i + 6, RCD); \
+ roundsm2(RCD, i + 7, RAB);
+
+#define enc_fls2(i) \
+ fls2(RAB, RCD, i + 0, i + 1);
+
+#define enc_inpack2() \
+ movq (RIO), RAB0; \
+ bswapq RAB0; \
+ rorq $32, RAB0; \
+ movq 4*2(RIO), RCD0; \
+ bswapq RCD0; \
+ rolq $32, RCD0; \
+ xorq key_table(CTX), RAB0; \
+ \
+ movq 8*2(RIO), RAB1; \
+ bswapq RAB1; \
+ rorq $32, RAB1; \
+ movq 12*2(RIO), RCD1; \
+ bswapq RCD1; \
+ rolq $32, RCD1; \
+ xorq key_table(CTX), RAB1;
+
+#define enc_outunpack2(op, max) \
+ xorq key_table(CTX, max, 8), RCD0; \
+ rolq $32, RCD0; \
+ bswapq RCD0; \
+ op ## q RCD0, (RIO); \
+ rorq $32, RAB0; \
+ bswapq RAB0; \
+ op ## q RAB0, 4*2(RIO); \
+ \
+ xorq key_table(CTX, max, 8), RCD1; \
+ rolq $32, RCD1; \
+ bswapq RCD1; \
+ op ## q RCD1, 8*2(RIO); \
+ rorq $32, RAB1; \
+ bswapq RAB1; \
+ op ## q RAB1, 12*2(RIO);
+
+#define dec_rounds2(i) \
+ roundsm2(RAB, i + 7, RCD); \
+ roundsm2(RCD, i + 6, RAB); \
+ roundsm2(RAB, i + 5, RCD); \
+ roundsm2(RCD, i + 4, RAB); \
+ roundsm2(RAB, i + 3, RCD); \
+ roundsm2(RCD, i + 2, RAB);
+
+#define dec_fls2(i) \
+ fls2(RAB, RCD, i + 1, i + 0);
+
+#define dec_inpack2(max) \
+ movq (RIO), RAB0; \
+ bswapq RAB0; \
+ rorq $32, RAB0; \
+ movq 4*2(RIO), RCD0; \
+ bswapq RCD0; \
+ rolq $32, RCD0; \
+ xorq key_table(CTX, max, 8), RAB0; \
+ \
+ movq 8*2(RIO), RAB1; \
+ bswapq RAB1; \
+ rorq $32, RAB1; \
+ movq 12*2(RIO), RCD1; \
+ bswapq RCD1; \
+ rolq $32, RCD1; \
+ xorq key_table(CTX, max, 8), RAB1;
+
+#define dec_outunpack2() \
+ xorq key_table(CTX), RCD0; \
+ rolq $32, RCD0; \
+ bswapq RCD0; \
+ movq RCD0, (RIO); \
+ rorq $32, RAB0; \
+ bswapq RAB0; \
+ movq RAB0, 4*2(RIO); \
+ \
+ xorq key_table(CTX), RCD1; \
+ rolq $32, RCD1; \
+ bswapq RCD1; \
+ movq RCD1, 8*2(RIO); \
+ rorq $32, RAB1; \
+ bswapq RAB1; \
+ movq RAB1, 12*2(RIO);
+
+SYM_FUNC_START(__camellia_enc_blk_2way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: bool xor
+ */
+ pushq %rbx;
+
+ movq %r12, RR12;
+ movq %rcx, RXOR;
+ movq %rsi, RDST;
+ movq %rdx, RIO;
+
+ enc_inpack2();
+
+ enc_rounds2(0);
+ enc_fls2(8);
+ enc_rounds2(8);
+ enc_fls2(16);
+ enc_rounds2(16);
+ movl $24, RT2d; /* max */
+
+ cmpb $16, key_length(CTX);
+ je .L__enc2_done;
+
+ enc_fls2(24);
+ enc_rounds2(24);
+ movl $32, RT2d; /* max */
+
+.L__enc2_done:
+ test RXORbl, RXORbl;
+ movq RDST, RIO;
+ jnz .L__enc2_xor;
+
+ enc_outunpack2(mov, RT2);
+
+ movq RR12, %r12;
+ popq %rbx;
+ RET;
+
+.L__enc2_xor:
+ enc_outunpack2(xor, RT2);
+
+ movq RR12, %r12;
+ popq %rbx;
+ RET;
+SYM_FUNC_END(__camellia_enc_blk_2way)
+
+SYM_FUNC_START(camellia_dec_blk_2way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ cmpl $16, key_length(CTX);
+ movl $32, RT2d;
+ movl $24, RXORd;
+ cmovel RXORd, RT2d; /* max */
+
+ movq %rbx, RXOR;
+ movq %r12, RR12;
+ movq %rsi, RDST;
+ movq %rdx, RIO;
+
+ dec_inpack2(RT2);
+
+ cmpb $24, RT2bl;
+ je .L__dec2_rounds16;
+
+ dec_rounds2(24);
+ dec_fls2(24);
+
+.L__dec2_rounds16:
+ dec_rounds2(16);
+ dec_fls2(16);
+ dec_rounds2(8);
+ dec_fls2(8);
+ dec_rounds2(0);
+
+ movq RDST, RIO;
+
+ dec_outunpack2();
+
+ movq RR12, %r12;
+ movq RXOR, %rbx;
+ RET;
+SYM_FUNC_END(camellia_dec_blk_2way)
diff --git a/arch/x86/crypto/camellia.h b/arch/x86/crypto/camellia.h
new file mode 100644
index 000000000000..1dcea79e8f8e
--- /dev/null
+++ b/arch/x86/crypto/camellia.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_X86_CAMELLIA_H
+#define ASM_X86_CAMELLIA_H
+
+#include <crypto/b128ops.h>
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+
+#define CAMELLIA_MIN_KEY_SIZE 16
+#define CAMELLIA_MAX_KEY_SIZE 32
+#define CAMELLIA_BLOCK_SIZE 16
+#define CAMELLIA_TABLE_BYTE_LEN 272
+#define CAMELLIA_PARALLEL_BLOCKS 2
+
+struct crypto_skcipher;
+
+struct camellia_ctx {
+ u64 key_table[CAMELLIA_TABLE_BYTE_LEN / sizeof(u64)];
+ u32 key_length;
+};
+
+extern int __camellia_setkey(struct camellia_ctx *cctx,
+ const unsigned char *key,
+ unsigned int key_len);
+
+/* regular block cipher functions */
+asmlinkage void __camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src,
+ bool xor);
+asmlinkage void camellia_dec_blk(const void *ctx, u8 *dst, const u8 *src);
+
+/* 2-way parallel cipher functions */
+asmlinkage void __camellia_enc_blk_2way(const void *ctx, u8 *dst, const u8 *src,
+ bool xor);
+asmlinkage void camellia_dec_blk_2way(const void *ctx, u8 *dst, const u8 *src);
+
+/* 16-way parallel cipher functions (avx/aes-ni) */
+asmlinkage void camellia_ecb_enc_16way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void camellia_ecb_dec_16way(const void *ctx, u8 *dst, const u8 *src);
+
+asmlinkage void camellia_cbc_dec_16way(const void *ctx, u8 *dst, const u8 *src);
+
+static inline void camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src)
+{
+ __camellia_enc_blk(ctx, dst, src, false);
+}
+
+static inline void camellia_enc_blk_xor(const void *ctx, u8 *dst, const u8 *src)
+{
+ __camellia_enc_blk(ctx, dst, src, true);
+}
+
+static inline void camellia_enc_blk_2way(const void *ctx, u8 *dst,
+ const u8 *src)
+{
+ __camellia_enc_blk_2way(ctx, dst, src, false);
+}
+
+static inline void camellia_enc_blk_xor_2way(const void *ctx, u8 *dst,
+ const u8 *src)
+{
+ __camellia_enc_blk_2way(ctx, dst, src, true);
+}
+
+/* glue helpers */
+extern void camellia_decrypt_cbc_2way(const void *ctx, u8 *dst, const u8 *src);
+
+#endif /* ASM_X86_CAMELLIA_H */
diff --git a/arch/x86/crypto/camellia_aesni_avx2_glue.c b/arch/x86/crypto/camellia_aesni_avx2_glue.c
new file mode 100644
index 000000000000..e7e4d64e9577
--- /dev/null
+++ b/arch/x86/crypto/camellia_aesni_avx2_glue.c
@@ -0,0 +1,138 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for x86_64/AVX2/AES-NI assembler optimized version of Camellia
+ *
+ * Copyright Ā© 2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/simd.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include "camellia.h"
+#include "ecb_cbc_helpers.h"
+
+#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
+#define CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS 32
+
+/* 32-way AVX2/AES-NI parallel cipher functions */
+asmlinkage void camellia_ecb_enc_32way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void camellia_ecb_dec_32way(const void *ctx, u8 *dst, const u8 *src);
+
+asmlinkage void camellia_cbc_dec_32way(const void *ctx, u8 *dst, const u8 *src);
+
+static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ return __camellia_setkey(crypto_skcipher_ctx(tfm), key, keylen);
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
+ ECB_BLOCK(CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, camellia_ecb_enc_32way);
+ ECB_BLOCK(CAMELLIA_AESNI_PARALLEL_BLOCKS, camellia_ecb_enc_16way);
+ ECB_BLOCK(2, camellia_enc_blk_2way);
+ ECB_BLOCK(1, camellia_enc_blk);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
+ ECB_BLOCK(CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, camellia_ecb_dec_32way);
+ ECB_BLOCK(CAMELLIA_AESNI_PARALLEL_BLOCKS, camellia_ecb_dec_16way);
+ ECB_BLOCK(2, camellia_dec_blk_2way);
+ ECB_BLOCK(1, camellia_dec_blk);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, CAMELLIA_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(camellia_enc_blk);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
+ CBC_DEC_BLOCK(CAMELLIA_AESNI_AVX2_PARALLEL_BLOCKS, camellia_cbc_dec_32way);
+ CBC_DEC_BLOCK(CAMELLIA_AESNI_PARALLEL_BLOCKS, camellia_cbc_dec_16way);
+ CBC_DEC_BLOCK(2, camellia_decrypt_cbc_2way);
+ CBC_DEC_BLOCK(1, camellia_dec_blk);
+ CBC_WALK_END();
+}
+
+static struct skcipher_alg camellia_algs[] = {
+ {
+ .base.cra_name = "__ecb(camellia)",
+ .base.cra_driver_name = "__ecb-camellia-aesni-avx2",
+ .base.cra_priority = 500,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct camellia_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .setkey = camellia_setkey,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "__cbc(camellia)",
+ .base.cra_driver_name = "__cbc-camellia-aesni-avx2",
+ .base.cra_priority = 500,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct camellia_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .ivsize = CAMELLIA_BLOCK_SIZE,
+ .setkey = camellia_setkey,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ },
+};
+
+static struct simd_skcipher_alg *camellia_simd_algs[ARRAY_SIZE(camellia_algs)];
+
+static int __init camellia_aesni_init(void)
+{
+ const char *feature_name;
+
+ if (!boot_cpu_has(X86_FEATURE_AVX) ||
+ !boot_cpu_has(X86_FEATURE_AVX2) ||
+ !boot_cpu_has(X86_FEATURE_AES) ||
+ !boot_cpu_has(X86_FEATURE_OSXSAVE)) {
+ pr_info("AVX2 or AES-NI instructions are not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ return simd_register_skciphers_compat(camellia_algs,
+ ARRAY_SIZE(camellia_algs),
+ camellia_simd_algs);
+}
+
+static void __exit camellia_aesni_fini(void)
+{
+ simd_unregister_skciphers(camellia_algs, ARRAY_SIZE(camellia_algs),
+ camellia_simd_algs);
+}
+
+module_init(camellia_aesni_init);
+module_exit(camellia_aesni_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX2 optimized");
+MODULE_ALIAS_CRYPTO("camellia");
+MODULE_ALIAS_CRYPTO("camellia-asm");
diff --git a/arch/x86/crypto/camellia_aesni_avx_glue.c b/arch/x86/crypto/camellia_aesni_avx_glue.c
new file mode 100644
index 000000000000..c7ccf63e741e
--- /dev/null
+++ b/arch/x86/crypto/camellia_aesni_avx_glue.c
@@ -0,0 +1,137 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for x86_64/AVX/AES-NI assembler optimized version of Camellia
+ *
+ * Copyright Ā© 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/simd.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include "camellia.h"
+#include "ecb_cbc_helpers.h"
+
+#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
+
+/* 16-way parallel cipher functions (avx/aes-ni) */
+asmlinkage void camellia_ecb_enc_16way(const void *ctx, u8 *dst, const u8 *src);
+EXPORT_SYMBOL_GPL(camellia_ecb_enc_16way);
+
+asmlinkage void camellia_ecb_dec_16way(const void *ctx, u8 *dst, const u8 *src);
+EXPORT_SYMBOL_GPL(camellia_ecb_dec_16way);
+
+asmlinkage void camellia_cbc_dec_16way(const void *ctx, u8 *dst, const u8 *src);
+EXPORT_SYMBOL_GPL(camellia_cbc_dec_16way);
+
+static int camellia_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ return __camellia_setkey(crypto_skcipher_ctx(tfm), key, keylen);
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
+ ECB_BLOCK(CAMELLIA_AESNI_PARALLEL_BLOCKS, camellia_ecb_enc_16way);
+ ECB_BLOCK(2, camellia_enc_blk_2way);
+ ECB_BLOCK(1, camellia_enc_blk);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
+ ECB_BLOCK(CAMELLIA_AESNI_PARALLEL_BLOCKS, camellia_ecb_dec_16way);
+ ECB_BLOCK(2, camellia_dec_blk_2way);
+ ECB_BLOCK(1, camellia_dec_blk);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, CAMELLIA_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(camellia_enc_blk);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, CAMELLIA_BLOCK_SIZE, CAMELLIA_AESNI_PARALLEL_BLOCKS);
+ CBC_DEC_BLOCK(CAMELLIA_AESNI_PARALLEL_BLOCKS, camellia_cbc_dec_16way);
+ CBC_DEC_BLOCK(2, camellia_decrypt_cbc_2way);
+ CBC_DEC_BLOCK(1, camellia_dec_blk);
+ CBC_WALK_END();
+}
+
+static struct skcipher_alg camellia_algs[] = {
+ {
+ .base.cra_name = "__ecb(camellia)",
+ .base.cra_driver_name = "__ecb-camellia-aesni",
+ .base.cra_priority = 400,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct camellia_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .setkey = camellia_setkey,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "__cbc(camellia)",
+ .base.cra_driver_name = "__cbc-camellia-aesni",
+ .base.cra_priority = 400,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct camellia_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .ivsize = CAMELLIA_BLOCK_SIZE,
+ .setkey = camellia_setkey,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ }
+};
+
+static struct simd_skcipher_alg *camellia_simd_algs[ARRAY_SIZE(camellia_algs)];
+
+static int __init camellia_aesni_init(void)
+{
+ const char *feature_name;
+
+ if (!boot_cpu_has(X86_FEATURE_AVX) ||
+ !boot_cpu_has(X86_FEATURE_AES) ||
+ !boot_cpu_has(X86_FEATURE_OSXSAVE)) {
+ pr_info("AVX or AES-NI instructions are not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ return simd_register_skciphers_compat(camellia_algs,
+ ARRAY_SIZE(camellia_algs),
+ camellia_simd_algs);
+}
+
+static void __exit camellia_aesni_fini(void)
+{
+ simd_unregister_skciphers(camellia_algs, ARRAY_SIZE(camellia_algs),
+ camellia_simd_algs);
+}
+
+module_init(camellia_aesni_init);
+module_exit(camellia_aesni_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Camellia Cipher Algorithm, AES-NI/AVX optimized");
+MODULE_ALIAS_CRYPTO("camellia");
+MODULE_ALIAS_CRYPTO("camellia-asm");
diff --git a/arch/x86/crypto/camellia_glue.c b/arch/x86/crypto/camellia_glue.c
new file mode 100644
index 000000000000..d45e9c0c42ac
--- /dev/null
+++ b/arch/x86/crypto/camellia_glue.c
@@ -0,0 +1,1417 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for assembler optimized version of Camellia
+ *
+ * Copyright (c) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * Camellia parts based on code by:
+ * Copyright (C) 2006 NTT (Nippon Telegraph and Telephone Corporation)
+ */
+
+#include <asm/unaligned.h>
+#include <linux/crypto.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <crypto/algapi.h>
+
+#include "camellia.h"
+#include "ecb_cbc_helpers.h"
+
+/* regular block cipher functions */
+asmlinkage void __camellia_enc_blk(const void *ctx, u8 *dst, const u8 *src,
+ bool xor);
+EXPORT_SYMBOL_GPL(__camellia_enc_blk);
+asmlinkage void camellia_dec_blk(const void *ctx, u8 *dst, const u8 *src);
+EXPORT_SYMBOL_GPL(camellia_dec_blk);
+
+/* 2-way parallel cipher functions */
+asmlinkage void __camellia_enc_blk_2way(const void *ctx, u8 *dst, const u8 *src,
+ bool xor);
+EXPORT_SYMBOL_GPL(__camellia_enc_blk_2way);
+asmlinkage void camellia_dec_blk_2way(const void *ctx, u8 *dst, const u8 *src);
+EXPORT_SYMBOL_GPL(camellia_dec_blk_2way);
+
+static void camellia_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ camellia_enc_blk(crypto_tfm_ctx(tfm), dst, src);
+}
+
+static void camellia_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ camellia_dec_blk(crypto_tfm_ctx(tfm), dst, src);
+}
+
+/* camellia sboxes */
+__visible const u64 camellia_sp10011110[256] = {
+ 0x7000007070707000ULL, 0x8200008282828200ULL, 0x2c00002c2c2c2c00ULL,
+ 0xec0000ecececec00ULL, 0xb30000b3b3b3b300ULL, 0x2700002727272700ULL,
+ 0xc00000c0c0c0c000ULL, 0xe50000e5e5e5e500ULL, 0xe40000e4e4e4e400ULL,
+ 0x8500008585858500ULL, 0x5700005757575700ULL, 0x3500003535353500ULL,
+ 0xea0000eaeaeaea00ULL, 0x0c00000c0c0c0c00ULL, 0xae0000aeaeaeae00ULL,
+ 0x4100004141414100ULL, 0x2300002323232300ULL, 0xef0000efefefef00ULL,
+ 0x6b00006b6b6b6b00ULL, 0x9300009393939300ULL, 0x4500004545454500ULL,
+ 0x1900001919191900ULL, 0xa50000a5a5a5a500ULL, 0x2100002121212100ULL,
+ 0xed0000edededed00ULL, 0x0e00000e0e0e0e00ULL, 0x4f00004f4f4f4f00ULL,
+ 0x4e00004e4e4e4e00ULL, 0x1d00001d1d1d1d00ULL, 0x6500006565656500ULL,
+ 0x9200009292929200ULL, 0xbd0000bdbdbdbd00ULL, 0x8600008686868600ULL,
+ 0xb80000b8b8b8b800ULL, 0xaf0000afafafaf00ULL, 0x8f00008f8f8f8f00ULL,
+ 0x7c00007c7c7c7c00ULL, 0xeb0000ebebebeb00ULL, 0x1f00001f1f1f1f00ULL,
+ 0xce0000cececece00ULL, 0x3e00003e3e3e3e00ULL, 0x3000003030303000ULL,
+ 0xdc0000dcdcdcdc00ULL, 0x5f00005f5f5f5f00ULL, 0x5e00005e5e5e5e00ULL,
+ 0xc50000c5c5c5c500ULL, 0x0b00000b0b0b0b00ULL, 0x1a00001a1a1a1a00ULL,
+ 0xa60000a6a6a6a600ULL, 0xe10000e1e1e1e100ULL, 0x3900003939393900ULL,
+ 0xca0000cacacaca00ULL, 0xd50000d5d5d5d500ULL, 0x4700004747474700ULL,
+ 0x5d00005d5d5d5d00ULL, 0x3d00003d3d3d3d00ULL, 0xd90000d9d9d9d900ULL,
+ 0x0100000101010100ULL, 0x5a00005a5a5a5a00ULL, 0xd60000d6d6d6d600ULL,
+ 0x5100005151515100ULL, 0x5600005656565600ULL, 0x6c00006c6c6c6c00ULL,
+ 0x4d00004d4d4d4d00ULL, 0x8b00008b8b8b8b00ULL, 0x0d00000d0d0d0d00ULL,
+ 0x9a00009a9a9a9a00ULL, 0x6600006666666600ULL, 0xfb0000fbfbfbfb00ULL,
+ 0xcc0000cccccccc00ULL, 0xb00000b0b0b0b000ULL, 0x2d00002d2d2d2d00ULL,
+ 0x7400007474747400ULL, 0x1200001212121200ULL, 0x2b00002b2b2b2b00ULL,
+ 0x2000002020202000ULL, 0xf00000f0f0f0f000ULL, 0xb10000b1b1b1b100ULL,
+ 0x8400008484848400ULL, 0x9900009999999900ULL, 0xdf0000dfdfdfdf00ULL,
+ 0x4c00004c4c4c4c00ULL, 0xcb0000cbcbcbcb00ULL, 0xc20000c2c2c2c200ULL,
+ 0x3400003434343400ULL, 0x7e00007e7e7e7e00ULL, 0x7600007676767600ULL,
+ 0x0500000505050500ULL, 0x6d00006d6d6d6d00ULL, 0xb70000b7b7b7b700ULL,
+ 0xa90000a9a9a9a900ULL, 0x3100003131313100ULL, 0xd10000d1d1d1d100ULL,
+ 0x1700001717171700ULL, 0x0400000404040400ULL, 0xd70000d7d7d7d700ULL,
+ 0x1400001414141400ULL, 0x5800005858585800ULL, 0x3a00003a3a3a3a00ULL,
+ 0x6100006161616100ULL, 0xde0000dededede00ULL, 0x1b00001b1b1b1b00ULL,
+ 0x1100001111111100ULL, 0x1c00001c1c1c1c00ULL, 0x3200003232323200ULL,
+ 0x0f00000f0f0f0f00ULL, 0x9c00009c9c9c9c00ULL, 0x1600001616161600ULL,
+ 0x5300005353535300ULL, 0x1800001818181800ULL, 0xf20000f2f2f2f200ULL,
+ 0x2200002222222200ULL, 0xfe0000fefefefe00ULL, 0x4400004444444400ULL,
+ 0xcf0000cfcfcfcf00ULL, 0xb20000b2b2b2b200ULL, 0xc30000c3c3c3c300ULL,
+ 0xb50000b5b5b5b500ULL, 0x7a00007a7a7a7a00ULL, 0x9100009191919100ULL,
+ 0x2400002424242400ULL, 0x0800000808080800ULL, 0xe80000e8e8e8e800ULL,
+ 0xa80000a8a8a8a800ULL, 0x6000006060606000ULL, 0xfc0000fcfcfcfc00ULL,
+ 0x6900006969696900ULL, 0x5000005050505000ULL, 0xaa0000aaaaaaaa00ULL,
+ 0xd00000d0d0d0d000ULL, 0xa00000a0a0a0a000ULL, 0x7d00007d7d7d7d00ULL,
+ 0xa10000a1a1a1a100ULL, 0x8900008989898900ULL, 0x6200006262626200ULL,
+ 0x9700009797979700ULL, 0x5400005454545400ULL, 0x5b00005b5b5b5b00ULL,
+ 0x1e00001e1e1e1e00ULL, 0x9500009595959500ULL, 0xe00000e0e0e0e000ULL,
+ 0xff0000ffffffff00ULL, 0x6400006464646400ULL, 0xd20000d2d2d2d200ULL,
+ 0x1000001010101000ULL, 0xc40000c4c4c4c400ULL, 0x0000000000000000ULL,
+ 0x4800004848484800ULL, 0xa30000a3a3a3a300ULL, 0xf70000f7f7f7f700ULL,
+ 0x7500007575757500ULL, 0xdb0000dbdbdbdb00ULL, 0x8a00008a8a8a8a00ULL,
+ 0x0300000303030300ULL, 0xe60000e6e6e6e600ULL, 0xda0000dadadada00ULL,
+ 0x0900000909090900ULL, 0x3f00003f3f3f3f00ULL, 0xdd0000dddddddd00ULL,
+ 0x9400009494949400ULL, 0x8700008787878700ULL, 0x5c00005c5c5c5c00ULL,
+ 0x8300008383838300ULL, 0x0200000202020200ULL, 0xcd0000cdcdcdcd00ULL,
+ 0x4a00004a4a4a4a00ULL, 0x9000009090909000ULL, 0x3300003333333300ULL,
+ 0x7300007373737300ULL, 0x6700006767676700ULL, 0xf60000f6f6f6f600ULL,
+ 0xf30000f3f3f3f300ULL, 0x9d00009d9d9d9d00ULL, 0x7f00007f7f7f7f00ULL,
+ 0xbf0000bfbfbfbf00ULL, 0xe20000e2e2e2e200ULL, 0x5200005252525200ULL,
+ 0x9b00009b9b9b9b00ULL, 0xd80000d8d8d8d800ULL, 0x2600002626262600ULL,
+ 0xc80000c8c8c8c800ULL, 0x3700003737373700ULL, 0xc60000c6c6c6c600ULL,
+ 0x3b00003b3b3b3b00ULL, 0x8100008181818100ULL, 0x9600009696969600ULL,
+ 0x6f00006f6f6f6f00ULL, 0x4b00004b4b4b4b00ULL, 0x1300001313131300ULL,
+ 0xbe0000bebebebe00ULL, 0x6300006363636300ULL, 0x2e00002e2e2e2e00ULL,
+ 0xe90000e9e9e9e900ULL, 0x7900007979797900ULL, 0xa70000a7a7a7a700ULL,
+ 0x8c00008c8c8c8c00ULL, 0x9f00009f9f9f9f00ULL, 0x6e00006e6e6e6e00ULL,
+ 0xbc0000bcbcbcbc00ULL, 0x8e00008e8e8e8e00ULL, 0x2900002929292900ULL,
+ 0xf50000f5f5f5f500ULL, 0xf90000f9f9f9f900ULL, 0xb60000b6b6b6b600ULL,
+ 0x2f00002f2f2f2f00ULL, 0xfd0000fdfdfdfd00ULL, 0xb40000b4b4b4b400ULL,
+ 0x5900005959595900ULL, 0x7800007878787800ULL, 0x9800009898989800ULL,
+ 0x0600000606060600ULL, 0x6a00006a6a6a6a00ULL, 0xe70000e7e7e7e700ULL,
+ 0x4600004646464600ULL, 0x7100007171717100ULL, 0xba0000babababa00ULL,
+ 0xd40000d4d4d4d400ULL, 0x2500002525252500ULL, 0xab0000abababab00ULL,
+ 0x4200004242424200ULL, 0x8800008888888800ULL, 0xa20000a2a2a2a200ULL,
+ 0x8d00008d8d8d8d00ULL, 0xfa0000fafafafa00ULL, 0x7200007272727200ULL,
+ 0x0700000707070700ULL, 0xb90000b9b9b9b900ULL, 0x5500005555555500ULL,
+ 0xf80000f8f8f8f800ULL, 0xee0000eeeeeeee00ULL, 0xac0000acacacac00ULL,
+ 0x0a00000a0a0a0a00ULL, 0x3600003636363600ULL, 0x4900004949494900ULL,
+ 0x2a00002a2a2a2a00ULL, 0x6800006868686800ULL, 0x3c00003c3c3c3c00ULL,
+ 0x3800003838383800ULL, 0xf10000f1f1f1f100ULL, 0xa40000a4a4a4a400ULL,
+ 0x4000004040404000ULL, 0x2800002828282800ULL, 0xd30000d3d3d3d300ULL,
+ 0x7b00007b7b7b7b00ULL, 0xbb0000bbbbbbbb00ULL, 0xc90000c9c9c9c900ULL,
+ 0x4300004343434300ULL, 0xc10000c1c1c1c100ULL, 0x1500001515151500ULL,
+ 0xe30000e3e3e3e300ULL, 0xad0000adadadad00ULL, 0xf40000f4f4f4f400ULL,
+ 0x7700007777777700ULL, 0xc70000c7c7c7c700ULL, 0x8000008080808000ULL,
+ 0x9e00009e9e9e9e00ULL,
+};
+
+__visible const u64 camellia_sp22000222[256] = {
+ 0xe0e0000000e0e0e0ULL, 0x0505000000050505ULL, 0x5858000000585858ULL,
+ 0xd9d9000000d9d9d9ULL, 0x6767000000676767ULL, 0x4e4e0000004e4e4eULL,
+ 0x8181000000818181ULL, 0xcbcb000000cbcbcbULL, 0xc9c9000000c9c9c9ULL,
+ 0x0b0b0000000b0b0bULL, 0xaeae000000aeaeaeULL, 0x6a6a0000006a6a6aULL,
+ 0xd5d5000000d5d5d5ULL, 0x1818000000181818ULL, 0x5d5d0000005d5d5dULL,
+ 0x8282000000828282ULL, 0x4646000000464646ULL, 0xdfdf000000dfdfdfULL,
+ 0xd6d6000000d6d6d6ULL, 0x2727000000272727ULL, 0x8a8a0000008a8a8aULL,
+ 0x3232000000323232ULL, 0x4b4b0000004b4b4bULL, 0x4242000000424242ULL,
+ 0xdbdb000000dbdbdbULL, 0x1c1c0000001c1c1cULL, 0x9e9e0000009e9e9eULL,
+ 0x9c9c0000009c9c9cULL, 0x3a3a0000003a3a3aULL, 0xcaca000000cacacaULL,
+ 0x2525000000252525ULL, 0x7b7b0000007b7b7bULL, 0x0d0d0000000d0d0dULL,
+ 0x7171000000717171ULL, 0x5f5f0000005f5f5fULL, 0x1f1f0000001f1f1fULL,
+ 0xf8f8000000f8f8f8ULL, 0xd7d7000000d7d7d7ULL, 0x3e3e0000003e3e3eULL,
+ 0x9d9d0000009d9d9dULL, 0x7c7c0000007c7c7cULL, 0x6060000000606060ULL,
+ 0xb9b9000000b9b9b9ULL, 0xbebe000000bebebeULL, 0xbcbc000000bcbcbcULL,
+ 0x8b8b0000008b8b8bULL, 0x1616000000161616ULL, 0x3434000000343434ULL,
+ 0x4d4d0000004d4d4dULL, 0xc3c3000000c3c3c3ULL, 0x7272000000727272ULL,
+ 0x9595000000959595ULL, 0xabab000000abababULL, 0x8e8e0000008e8e8eULL,
+ 0xbaba000000bababaULL, 0x7a7a0000007a7a7aULL, 0xb3b3000000b3b3b3ULL,
+ 0x0202000000020202ULL, 0xb4b4000000b4b4b4ULL, 0xadad000000adadadULL,
+ 0xa2a2000000a2a2a2ULL, 0xacac000000acacacULL, 0xd8d8000000d8d8d8ULL,
+ 0x9a9a0000009a9a9aULL, 0x1717000000171717ULL, 0x1a1a0000001a1a1aULL,
+ 0x3535000000353535ULL, 0xcccc000000ccccccULL, 0xf7f7000000f7f7f7ULL,
+ 0x9999000000999999ULL, 0x6161000000616161ULL, 0x5a5a0000005a5a5aULL,
+ 0xe8e8000000e8e8e8ULL, 0x2424000000242424ULL, 0x5656000000565656ULL,
+ 0x4040000000404040ULL, 0xe1e1000000e1e1e1ULL, 0x6363000000636363ULL,
+ 0x0909000000090909ULL, 0x3333000000333333ULL, 0xbfbf000000bfbfbfULL,
+ 0x9898000000989898ULL, 0x9797000000979797ULL, 0x8585000000858585ULL,
+ 0x6868000000686868ULL, 0xfcfc000000fcfcfcULL, 0xecec000000ecececULL,
+ 0x0a0a0000000a0a0aULL, 0xdada000000dadadaULL, 0x6f6f0000006f6f6fULL,
+ 0x5353000000535353ULL, 0x6262000000626262ULL, 0xa3a3000000a3a3a3ULL,
+ 0x2e2e0000002e2e2eULL, 0x0808000000080808ULL, 0xafaf000000afafafULL,
+ 0x2828000000282828ULL, 0xb0b0000000b0b0b0ULL, 0x7474000000747474ULL,
+ 0xc2c2000000c2c2c2ULL, 0xbdbd000000bdbdbdULL, 0x3636000000363636ULL,
+ 0x2222000000222222ULL, 0x3838000000383838ULL, 0x6464000000646464ULL,
+ 0x1e1e0000001e1e1eULL, 0x3939000000393939ULL, 0x2c2c0000002c2c2cULL,
+ 0xa6a6000000a6a6a6ULL, 0x3030000000303030ULL, 0xe5e5000000e5e5e5ULL,
+ 0x4444000000444444ULL, 0xfdfd000000fdfdfdULL, 0x8888000000888888ULL,
+ 0x9f9f0000009f9f9fULL, 0x6565000000656565ULL, 0x8787000000878787ULL,
+ 0x6b6b0000006b6b6bULL, 0xf4f4000000f4f4f4ULL, 0x2323000000232323ULL,
+ 0x4848000000484848ULL, 0x1010000000101010ULL, 0xd1d1000000d1d1d1ULL,
+ 0x5151000000515151ULL, 0xc0c0000000c0c0c0ULL, 0xf9f9000000f9f9f9ULL,
+ 0xd2d2000000d2d2d2ULL, 0xa0a0000000a0a0a0ULL, 0x5555000000555555ULL,
+ 0xa1a1000000a1a1a1ULL, 0x4141000000414141ULL, 0xfafa000000fafafaULL,
+ 0x4343000000434343ULL, 0x1313000000131313ULL, 0xc4c4000000c4c4c4ULL,
+ 0x2f2f0000002f2f2fULL, 0xa8a8000000a8a8a8ULL, 0xb6b6000000b6b6b6ULL,
+ 0x3c3c0000003c3c3cULL, 0x2b2b0000002b2b2bULL, 0xc1c1000000c1c1c1ULL,
+ 0xffff000000ffffffULL, 0xc8c8000000c8c8c8ULL, 0xa5a5000000a5a5a5ULL,
+ 0x2020000000202020ULL, 0x8989000000898989ULL, 0x0000000000000000ULL,
+ 0x9090000000909090ULL, 0x4747000000474747ULL, 0xefef000000efefefULL,
+ 0xeaea000000eaeaeaULL, 0xb7b7000000b7b7b7ULL, 0x1515000000151515ULL,
+ 0x0606000000060606ULL, 0xcdcd000000cdcdcdULL, 0xb5b5000000b5b5b5ULL,
+ 0x1212000000121212ULL, 0x7e7e0000007e7e7eULL, 0xbbbb000000bbbbbbULL,
+ 0x2929000000292929ULL, 0x0f0f0000000f0f0fULL, 0xb8b8000000b8b8b8ULL,
+ 0x0707000000070707ULL, 0x0404000000040404ULL, 0x9b9b0000009b9b9bULL,
+ 0x9494000000949494ULL, 0x2121000000212121ULL, 0x6666000000666666ULL,
+ 0xe6e6000000e6e6e6ULL, 0xcece000000cececeULL, 0xeded000000edededULL,
+ 0xe7e7000000e7e7e7ULL, 0x3b3b0000003b3b3bULL, 0xfefe000000fefefeULL,
+ 0x7f7f0000007f7f7fULL, 0xc5c5000000c5c5c5ULL, 0xa4a4000000a4a4a4ULL,
+ 0x3737000000373737ULL, 0xb1b1000000b1b1b1ULL, 0x4c4c0000004c4c4cULL,
+ 0x9191000000919191ULL, 0x6e6e0000006e6e6eULL, 0x8d8d0000008d8d8dULL,
+ 0x7676000000767676ULL, 0x0303000000030303ULL, 0x2d2d0000002d2d2dULL,
+ 0xdede000000dededeULL, 0x9696000000969696ULL, 0x2626000000262626ULL,
+ 0x7d7d0000007d7d7dULL, 0xc6c6000000c6c6c6ULL, 0x5c5c0000005c5c5cULL,
+ 0xd3d3000000d3d3d3ULL, 0xf2f2000000f2f2f2ULL, 0x4f4f0000004f4f4fULL,
+ 0x1919000000191919ULL, 0x3f3f0000003f3f3fULL, 0xdcdc000000dcdcdcULL,
+ 0x7979000000797979ULL, 0x1d1d0000001d1d1dULL, 0x5252000000525252ULL,
+ 0xebeb000000ebebebULL, 0xf3f3000000f3f3f3ULL, 0x6d6d0000006d6d6dULL,
+ 0x5e5e0000005e5e5eULL, 0xfbfb000000fbfbfbULL, 0x6969000000696969ULL,
+ 0xb2b2000000b2b2b2ULL, 0xf0f0000000f0f0f0ULL, 0x3131000000313131ULL,
+ 0x0c0c0000000c0c0cULL, 0xd4d4000000d4d4d4ULL, 0xcfcf000000cfcfcfULL,
+ 0x8c8c0000008c8c8cULL, 0xe2e2000000e2e2e2ULL, 0x7575000000757575ULL,
+ 0xa9a9000000a9a9a9ULL, 0x4a4a0000004a4a4aULL, 0x5757000000575757ULL,
+ 0x8484000000848484ULL, 0x1111000000111111ULL, 0x4545000000454545ULL,
+ 0x1b1b0000001b1b1bULL, 0xf5f5000000f5f5f5ULL, 0xe4e4000000e4e4e4ULL,
+ 0x0e0e0000000e0e0eULL, 0x7373000000737373ULL, 0xaaaa000000aaaaaaULL,
+ 0xf1f1000000f1f1f1ULL, 0xdddd000000ddddddULL, 0x5959000000595959ULL,
+ 0x1414000000141414ULL, 0x6c6c0000006c6c6cULL, 0x9292000000929292ULL,
+ 0x5454000000545454ULL, 0xd0d0000000d0d0d0ULL, 0x7878000000787878ULL,
+ 0x7070000000707070ULL, 0xe3e3000000e3e3e3ULL, 0x4949000000494949ULL,
+ 0x8080000000808080ULL, 0x5050000000505050ULL, 0xa7a7000000a7a7a7ULL,
+ 0xf6f6000000f6f6f6ULL, 0x7777000000777777ULL, 0x9393000000939393ULL,
+ 0x8686000000868686ULL, 0x8383000000838383ULL, 0x2a2a0000002a2a2aULL,
+ 0xc7c7000000c7c7c7ULL, 0x5b5b0000005b5b5bULL, 0xe9e9000000e9e9e9ULL,
+ 0xeeee000000eeeeeeULL, 0x8f8f0000008f8f8fULL, 0x0101000000010101ULL,
+ 0x3d3d0000003d3d3dULL,
+};
+
+__visible const u64 camellia_sp03303033[256] = {
+ 0x0038380038003838ULL, 0x0041410041004141ULL, 0x0016160016001616ULL,
+ 0x0076760076007676ULL, 0x00d9d900d900d9d9ULL, 0x0093930093009393ULL,
+ 0x0060600060006060ULL, 0x00f2f200f200f2f2ULL, 0x0072720072007272ULL,
+ 0x00c2c200c200c2c2ULL, 0x00abab00ab00ababULL, 0x009a9a009a009a9aULL,
+ 0x0075750075007575ULL, 0x0006060006000606ULL, 0x0057570057005757ULL,
+ 0x00a0a000a000a0a0ULL, 0x0091910091009191ULL, 0x00f7f700f700f7f7ULL,
+ 0x00b5b500b500b5b5ULL, 0x00c9c900c900c9c9ULL, 0x00a2a200a200a2a2ULL,
+ 0x008c8c008c008c8cULL, 0x00d2d200d200d2d2ULL, 0x0090900090009090ULL,
+ 0x00f6f600f600f6f6ULL, 0x0007070007000707ULL, 0x00a7a700a700a7a7ULL,
+ 0x0027270027002727ULL, 0x008e8e008e008e8eULL, 0x00b2b200b200b2b2ULL,
+ 0x0049490049004949ULL, 0x00dede00de00dedeULL, 0x0043430043004343ULL,
+ 0x005c5c005c005c5cULL, 0x00d7d700d700d7d7ULL, 0x00c7c700c700c7c7ULL,
+ 0x003e3e003e003e3eULL, 0x00f5f500f500f5f5ULL, 0x008f8f008f008f8fULL,
+ 0x0067670067006767ULL, 0x001f1f001f001f1fULL, 0x0018180018001818ULL,
+ 0x006e6e006e006e6eULL, 0x00afaf00af00afafULL, 0x002f2f002f002f2fULL,
+ 0x00e2e200e200e2e2ULL, 0x0085850085008585ULL, 0x000d0d000d000d0dULL,
+ 0x0053530053005353ULL, 0x00f0f000f000f0f0ULL, 0x009c9c009c009c9cULL,
+ 0x0065650065006565ULL, 0x00eaea00ea00eaeaULL, 0x00a3a300a300a3a3ULL,
+ 0x00aeae00ae00aeaeULL, 0x009e9e009e009e9eULL, 0x00ecec00ec00ececULL,
+ 0x0080800080008080ULL, 0x002d2d002d002d2dULL, 0x006b6b006b006b6bULL,
+ 0x00a8a800a800a8a8ULL, 0x002b2b002b002b2bULL, 0x0036360036003636ULL,
+ 0x00a6a600a600a6a6ULL, 0x00c5c500c500c5c5ULL, 0x0086860086008686ULL,
+ 0x004d4d004d004d4dULL, 0x0033330033003333ULL, 0x00fdfd00fd00fdfdULL,
+ 0x0066660066006666ULL, 0x0058580058005858ULL, 0x0096960096009696ULL,
+ 0x003a3a003a003a3aULL, 0x0009090009000909ULL, 0x0095950095009595ULL,
+ 0x0010100010001010ULL, 0x0078780078007878ULL, 0x00d8d800d800d8d8ULL,
+ 0x0042420042004242ULL, 0x00cccc00cc00ccccULL, 0x00efef00ef00efefULL,
+ 0x0026260026002626ULL, 0x00e5e500e500e5e5ULL, 0x0061610061006161ULL,
+ 0x001a1a001a001a1aULL, 0x003f3f003f003f3fULL, 0x003b3b003b003b3bULL,
+ 0x0082820082008282ULL, 0x00b6b600b600b6b6ULL, 0x00dbdb00db00dbdbULL,
+ 0x00d4d400d400d4d4ULL, 0x0098980098009898ULL, 0x00e8e800e800e8e8ULL,
+ 0x008b8b008b008b8bULL, 0x0002020002000202ULL, 0x00ebeb00eb00ebebULL,
+ 0x000a0a000a000a0aULL, 0x002c2c002c002c2cULL, 0x001d1d001d001d1dULL,
+ 0x00b0b000b000b0b0ULL, 0x006f6f006f006f6fULL, 0x008d8d008d008d8dULL,
+ 0x0088880088008888ULL, 0x000e0e000e000e0eULL, 0x0019190019001919ULL,
+ 0x0087870087008787ULL, 0x004e4e004e004e4eULL, 0x000b0b000b000b0bULL,
+ 0x00a9a900a900a9a9ULL, 0x000c0c000c000c0cULL, 0x0079790079007979ULL,
+ 0x0011110011001111ULL, 0x007f7f007f007f7fULL, 0x0022220022002222ULL,
+ 0x00e7e700e700e7e7ULL, 0x0059590059005959ULL, 0x00e1e100e100e1e1ULL,
+ 0x00dada00da00dadaULL, 0x003d3d003d003d3dULL, 0x00c8c800c800c8c8ULL,
+ 0x0012120012001212ULL, 0x0004040004000404ULL, 0x0074740074007474ULL,
+ 0x0054540054005454ULL, 0x0030300030003030ULL, 0x007e7e007e007e7eULL,
+ 0x00b4b400b400b4b4ULL, 0x0028280028002828ULL, 0x0055550055005555ULL,
+ 0x0068680068006868ULL, 0x0050500050005050ULL, 0x00bebe00be00bebeULL,
+ 0x00d0d000d000d0d0ULL, 0x00c4c400c400c4c4ULL, 0x0031310031003131ULL,
+ 0x00cbcb00cb00cbcbULL, 0x002a2a002a002a2aULL, 0x00adad00ad00adadULL,
+ 0x000f0f000f000f0fULL, 0x00caca00ca00cacaULL, 0x0070700070007070ULL,
+ 0x00ffff00ff00ffffULL, 0x0032320032003232ULL, 0x0069690069006969ULL,
+ 0x0008080008000808ULL, 0x0062620062006262ULL, 0x0000000000000000ULL,
+ 0x0024240024002424ULL, 0x00d1d100d100d1d1ULL, 0x00fbfb00fb00fbfbULL,
+ 0x00baba00ba00babaULL, 0x00eded00ed00ededULL, 0x0045450045004545ULL,
+ 0x0081810081008181ULL, 0x0073730073007373ULL, 0x006d6d006d006d6dULL,
+ 0x0084840084008484ULL, 0x009f9f009f009f9fULL, 0x00eeee00ee00eeeeULL,
+ 0x004a4a004a004a4aULL, 0x00c3c300c300c3c3ULL, 0x002e2e002e002e2eULL,
+ 0x00c1c100c100c1c1ULL, 0x0001010001000101ULL, 0x00e6e600e600e6e6ULL,
+ 0x0025250025002525ULL, 0x0048480048004848ULL, 0x0099990099009999ULL,
+ 0x00b9b900b900b9b9ULL, 0x00b3b300b300b3b3ULL, 0x007b7b007b007b7bULL,
+ 0x00f9f900f900f9f9ULL, 0x00cece00ce00ceceULL, 0x00bfbf00bf00bfbfULL,
+ 0x00dfdf00df00dfdfULL, 0x0071710071007171ULL, 0x0029290029002929ULL,
+ 0x00cdcd00cd00cdcdULL, 0x006c6c006c006c6cULL, 0x0013130013001313ULL,
+ 0x0064640064006464ULL, 0x009b9b009b009b9bULL, 0x0063630063006363ULL,
+ 0x009d9d009d009d9dULL, 0x00c0c000c000c0c0ULL, 0x004b4b004b004b4bULL,
+ 0x00b7b700b700b7b7ULL, 0x00a5a500a500a5a5ULL, 0x0089890089008989ULL,
+ 0x005f5f005f005f5fULL, 0x00b1b100b100b1b1ULL, 0x0017170017001717ULL,
+ 0x00f4f400f400f4f4ULL, 0x00bcbc00bc00bcbcULL, 0x00d3d300d300d3d3ULL,
+ 0x0046460046004646ULL, 0x00cfcf00cf00cfcfULL, 0x0037370037003737ULL,
+ 0x005e5e005e005e5eULL, 0x0047470047004747ULL, 0x0094940094009494ULL,
+ 0x00fafa00fa00fafaULL, 0x00fcfc00fc00fcfcULL, 0x005b5b005b005b5bULL,
+ 0x0097970097009797ULL, 0x00fefe00fe00fefeULL, 0x005a5a005a005a5aULL,
+ 0x00acac00ac00acacULL, 0x003c3c003c003c3cULL, 0x004c4c004c004c4cULL,
+ 0x0003030003000303ULL, 0x0035350035003535ULL, 0x00f3f300f300f3f3ULL,
+ 0x0023230023002323ULL, 0x00b8b800b800b8b8ULL, 0x005d5d005d005d5dULL,
+ 0x006a6a006a006a6aULL, 0x0092920092009292ULL, 0x00d5d500d500d5d5ULL,
+ 0x0021210021002121ULL, 0x0044440044004444ULL, 0x0051510051005151ULL,
+ 0x00c6c600c600c6c6ULL, 0x007d7d007d007d7dULL, 0x0039390039003939ULL,
+ 0x0083830083008383ULL, 0x00dcdc00dc00dcdcULL, 0x00aaaa00aa00aaaaULL,
+ 0x007c7c007c007c7cULL, 0x0077770077007777ULL, 0x0056560056005656ULL,
+ 0x0005050005000505ULL, 0x001b1b001b001b1bULL, 0x00a4a400a400a4a4ULL,
+ 0x0015150015001515ULL, 0x0034340034003434ULL, 0x001e1e001e001e1eULL,
+ 0x001c1c001c001c1cULL, 0x00f8f800f800f8f8ULL, 0x0052520052005252ULL,
+ 0x0020200020002020ULL, 0x0014140014001414ULL, 0x00e9e900e900e9e9ULL,
+ 0x00bdbd00bd00bdbdULL, 0x00dddd00dd00ddddULL, 0x00e4e400e400e4e4ULL,
+ 0x00a1a100a100a1a1ULL, 0x00e0e000e000e0e0ULL, 0x008a8a008a008a8aULL,
+ 0x00f1f100f100f1f1ULL, 0x00d6d600d600d6d6ULL, 0x007a7a007a007a7aULL,
+ 0x00bbbb00bb00bbbbULL, 0x00e3e300e300e3e3ULL, 0x0040400040004040ULL,
+ 0x004f4f004f004f4fULL,
+};
+
+__visible const u64 camellia_sp00444404[256] = {
+ 0x0000707070700070ULL, 0x00002c2c2c2c002cULL, 0x0000b3b3b3b300b3ULL,
+ 0x0000c0c0c0c000c0ULL, 0x0000e4e4e4e400e4ULL, 0x0000575757570057ULL,
+ 0x0000eaeaeaea00eaULL, 0x0000aeaeaeae00aeULL, 0x0000232323230023ULL,
+ 0x00006b6b6b6b006bULL, 0x0000454545450045ULL, 0x0000a5a5a5a500a5ULL,
+ 0x0000edededed00edULL, 0x00004f4f4f4f004fULL, 0x00001d1d1d1d001dULL,
+ 0x0000929292920092ULL, 0x0000868686860086ULL, 0x0000afafafaf00afULL,
+ 0x00007c7c7c7c007cULL, 0x00001f1f1f1f001fULL, 0x00003e3e3e3e003eULL,
+ 0x0000dcdcdcdc00dcULL, 0x00005e5e5e5e005eULL, 0x00000b0b0b0b000bULL,
+ 0x0000a6a6a6a600a6ULL, 0x0000393939390039ULL, 0x0000d5d5d5d500d5ULL,
+ 0x00005d5d5d5d005dULL, 0x0000d9d9d9d900d9ULL, 0x00005a5a5a5a005aULL,
+ 0x0000515151510051ULL, 0x00006c6c6c6c006cULL, 0x00008b8b8b8b008bULL,
+ 0x00009a9a9a9a009aULL, 0x0000fbfbfbfb00fbULL, 0x0000b0b0b0b000b0ULL,
+ 0x0000747474740074ULL, 0x00002b2b2b2b002bULL, 0x0000f0f0f0f000f0ULL,
+ 0x0000848484840084ULL, 0x0000dfdfdfdf00dfULL, 0x0000cbcbcbcb00cbULL,
+ 0x0000343434340034ULL, 0x0000767676760076ULL, 0x00006d6d6d6d006dULL,
+ 0x0000a9a9a9a900a9ULL, 0x0000d1d1d1d100d1ULL, 0x0000040404040004ULL,
+ 0x0000141414140014ULL, 0x00003a3a3a3a003aULL, 0x0000dededede00deULL,
+ 0x0000111111110011ULL, 0x0000323232320032ULL, 0x00009c9c9c9c009cULL,
+ 0x0000535353530053ULL, 0x0000f2f2f2f200f2ULL, 0x0000fefefefe00feULL,
+ 0x0000cfcfcfcf00cfULL, 0x0000c3c3c3c300c3ULL, 0x00007a7a7a7a007aULL,
+ 0x0000242424240024ULL, 0x0000e8e8e8e800e8ULL, 0x0000606060600060ULL,
+ 0x0000696969690069ULL, 0x0000aaaaaaaa00aaULL, 0x0000a0a0a0a000a0ULL,
+ 0x0000a1a1a1a100a1ULL, 0x0000626262620062ULL, 0x0000545454540054ULL,
+ 0x00001e1e1e1e001eULL, 0x0000e0e0e0e000e0ULL, 0x0000646464640064ULL,
+ 0x0000101010100010ULL, 0x0000000000000000ULL, 0x0000a3a3a3a300a3ULL,
+ 0x0000757575750075ULL, 0x00008a8a8a8a008aULL, 0x0000e6e6e6e600e6ULL,
+ 0x0000090909090009ULL, 0x0000dddddddd00ddULL, 0x0000878787870087ULL,
+ 0x0000838383830083ULL, 0x0000cdcdcdcd00cdULL, 0x0000909090900090ULL,
+ 0x0000737373730073ULL, 0x0000f6f6f6f600f6ULL, 0x00009d9d9d9d009dULL,
+ 0x0000bfbfbfbf00bfULL, 0x0000525252520052ULL, 0x0000d8d8d8d800d8ULL,
+ 0x0000c8c8c8c800c8ULL, 0x0000c6c6c6c600c6ULL, 0x0000818181810081ULL,
+ 0x00006f6f6f6f006fULL, 0x0000131313130013ULL, 0x0000636363630063ULL,
+ 0x0000e9e9e9e900e9ULL, 0x0000a7a7a7a700a7ULL, 0x00009f9f9f9f009fULL,
+ 0x0000bcbcbcbc00bcULL, 0x0000292929290029ULL, 0x0000f9f9f9f900f9ULL,
+ 0x00002f2f2f2f002fULL, 0x0000b4b4b4b400b4ULL, 0x0000787878780078ULL,
+ 0x0000060606060006ULL, 0x0000e7e7e7e700e7ULL, 0x0000717171710071ULL,
+ 0x0000d4d4d4d400d4ULL, 0x0000abababab00abULL, 0x0000888888880088ULL,
+ 0x00008d8d8d8d008dULL, 0x0000727272720072ULL, 0x0000b9b9b9b900b9ULL,
+ 0x0000f8f8f8f800f8ULL, 0x0000acacacac00acULL, 0x0000363636360036ULL,
+ 0x00002a2a2a2a002aULL, 0x00003c3c3c3c003cULL, 0x0000f1f1f1f100f1ULL,
+ 0x0000404040400040ULL, 0x0000d3d3d3d300d3ULL, 0x0000bbbbbbbb00bbULL,
+ 0x0000434343430043ULL, 0x0000151515150015ULL, 0x0000adadadad00adULL,
+ 0x0000777777770077ULL, 0x0000808080800080ULL, 0x0000828282820082ULL,
+ 0x0000ecececec00ecULL, 0x0000272727270027ULL, 0x0000e5e5e5e500e5ULL,
+ 0x0000858585850085ULL, 0x0000353535350035ULL, 0x00000c0c0c0c000cULL,
+ 0x0000414141410041ULL, 0x0000efefefef00efULL, 0x0000939393930093ULL,
+ 0x0000191919190019ULL, 0x0000212121210021ULL, 0x00000e0e0e0e000eULL,
+ 0x00004e4e4e4e004eULL, 0x0000656565650065ULL, 0x0000bdbdbdbd00bdULL,
+ 0x0000b8b8b8b800b8ULL, 0x00008f8f8f8f008fULL, 0x0000ebebebeb00ebULL,
+ 0x0000cececece00ceULL, 0x0000303030300030ULL, 0x00005f5f5f5f005fULL,
+ 0x0000c5c5c5c500c5ULL, 0x00001a1a1a1a001aULL, 0x0000e1e1e1e100e1ULL,
+ 0x0000cacacaca00caULL, 0x0000474747470047ULL, 0x00003d3d3d3d003dULL,
+ 0x0000010101010001ULL, 0x0000d6d6d6d600d6ULL, 0x0000565656560056ULL,
+ 0x00004d4d4d4d004dULL, 0x00000d0d0d0d000dULL, 0x0000666666660066ULL,
+ 0x0000cccccccc00ccULL, 0x00002d2d2d2d002dULL, 0x0000121212120012ULL,
+ 0x0000202020200020ULL, 0x0000b1b1b1b100b1ULL, 0x0000999999990099ULL,
+ 0x00004c4c4c4c004cULL, 0x0000c2c2c2c200c2ULL, 0x00007e7e7e7e007eULL,
+ 0x0000050505050005ULL, 0x0000b7b7b7b700b7ULL, 0x0000313131310031ULL,
+ 0x0000171717170017ULL, 0x0000d7d7d7d700d7ULL, 0x0000585858580058ULL,
+ 0x0000616161610061ULL, 0x00001b1b1b1b001bULL, 0x00001c1c1c1c001cULL,
+ 0x00000f0f0f0f000fULL, 0x0000161616160016ULL, 0x0000181818180018ULL,
+ 0x0000222222220022ULL, 0x0000444444440044ULL, 0x0000b2b2b2b200b2ULL,
+ 0x0000b5b5b5b500b5ULL, 0x0000919191910091ULL, 0x0000080808080008ULL,
+ 0x0000a8a8a8a800a8ULL, 0x0000fcfcfcfc00fcULL, 0x0000505050500050ULL,
+ 0x0000d0d0d0d000d0ULL, 0x00007d7d7d7d007dULL, 0x0000898989890089ULL,
+ 0x0000979797970097ULL, 0x00005b5b5b5b005bULL, 0x0000959595950095ULL,
+ 0x0000ffffffff00ffULL, 0x0000d2d2d2d200d2ULL, 0x0000c4c4c4c400c4ULL,
+ 0x0000484848480048ULL, 0x0000f7f7f7f700f7ULL, 0x0000dbdbdbdb00dbULL,
+ 0x0000030303030003ULL, 0x0000dadadada00daULL, 0x00003f3f3f3f003fULL,
+ 0x0000949494940094ULL, 0x00005c5c5c5c005cULL, 0x0000020202020002ULL,
+ 0x00004a4a4a4a004aULL, 0x0000333333330033ULL, 0x0000676767670067ULL,
+ 0x0000f3f3f3f300f3ULL, 0x00007f7f7f7f007fULL, 0x0000e2e2e2e200e2ULL,
+ 0x00009b9b9b9b009bULL, 0x0000262626260026ULL, 0x0000373737370037ULL,
+ 0x00003b3b3b3b003bULL, 0x0000969696960096ULL, 0x00004b4b4b4b004bULL,
+ 0x0000bebebebe00beULL, 0x00002e2e2e2e002eULL, 0x0000797979790079ULL,
+ 0x00008c8c8c8c008cULL, 0x00006e6e6e6e006eULL, 0x00008e8e8e8e008eULL,
+ 0x0000f5f5f5f500f5ULL, 0x0000b6b6b6b600b6ULL, 0x0000fdfdfdfd00fdULL,
+ 0x0000595959590059ULL, 0x0000989898980098ULL, 0x00006a6a6a6a006aULL,
+ 0x0000464646460046ULL, 0x0000babababa00baULL, 0x0000252525250025ULL,
+ 0x0000424242420042ULL, 0x0000a2a2a2a200a2ULL, 0x0000fafafafa00faULL,
+ 0x0000070707070007ULL, 0x0000555555550055ULL, 0x0000eeeeeeee00eeULL,
+ 0x00000a0a0a0a000aULL, 0x0000494949490049ULL, 0x0000686868680068ULL,
+ 0x0000383838380038ULL, 0x0000a4a4a4a400a4ULL, 0x0000282828280028ULL,
+ 0x00007b7b7b7b007bULL, 0x0000c9c9c9c900c9ULL, 0x0000c1c1c1c100c1ULL,
+ 0x0000e3e3e3e300e3ULL, 0x0000f4f4f4f400f4ULL, 0x0000c7c7c7c700c7ULL,
+ 0x00009e9e9e9e009eULL,
+};
+
+__visible const u64 camellia_sp02220222[256] = {
+ 0x00e0e0e000e0e0e0ULL, 0x0005050500050505ULL, 0x0058585800585858ULL,
+ 0x00d9d9d900d9d9d9ULL, 0x0067676700676767ULL, 0x004e4e4e004e4e4eULL,
+ 0x0081818100818181ULL, 0x00cbcbcb00cbcbcbULL, 0x00c9c9c900c9c9c9ULL,
+ 0x000b0b0b000b0b0bULL, 0x00aeaeae00aeaeaeULL, 0x006a6a6a006a6a6aULL,
+ 0x00d5d5d500d5d5d5ULL, 0x0018181800181818ULL, 0x005d5d5d005d5d5dULL,
+ 0x0082828200828282ULL, 0x0046464600464646ULL, 0x00dfdfdf00dfdfdfULL,
+ 0x00d6d6d600d6d6d6ULL, 0x0027272700272727ULL, 0x008a8a8a008a8a8aULL,
+ 0x0032323200323232ULL, 0x004b4b4b004b4b4bULL, 0x0042424200424242ULL,
+ 0x00dbdbdb00dbdbdbULL, 0x001c1c1c001c1c1cULL, 0x009e9e9e009e9e9eULL,
+ 0x009c9c9c009c9c9cULL, 0x003a3a3a003a3a3aULL, 0x00cacaca00cacacaULL,
+ 0x0025252500252525ULL, 0x007b7b7b007b7b7bULL, 0x000d0d0d000d0d0dULL,
+ 0x0071717100717171ULL, 0x005f5f5f005f5f5fULL, 0x001f1f1f001f1f1fULL,
+ 0x00f8f8f800f8f8f8ULL, 0x00d7d7d700d7d7d7ULL, 0x003e3e3e003e3e3eULL,
+ 0x009d9d9d009d9d9dULL, 0x007c7c7c007c7c7cULL, 0x0060606000606060ULL,
+ 0x00b9b9b900b9b9b9ULL, 0x00bebebe00bebebeULL, 0x00bcbcbc00bcbcbcULL,
+ 0x008b8b8b008b8b8bULL, 0x0016161600161616ULL, 0x0034343400343434ULL,
+ 0x004d4d4d004d4d4dULL, 0x00c3c3c300c3c3c3ULL, 0x0072727200727272ULL,
+ 0x0095959500959595ULL, 0x00ababab00abababULL, 0x008e8e8e008e8e8eULL,
+ 0x00bababa00bababaULL, 0x007a7a7a007a7a7aULL, 0x00b3b3b300b3b3b3ULL,
+ 0x0002020200020202ULL, 0x00b4b4b400b4b4b4ULL, 0x00adadad00adadadULL,
+ 0x00a2a2a200a2a2a2ULL, 0x00acacac00acacacULL, 0x00d8d8d800d8d8d8ULL,
+ 0x009a9a9a009a9a9aULL, 0x0017171700171717ULL, 0x001a1a1a001a1a1aULL,
+ 0x0035353500353535ULL, 0x00cccccc00ccccccULL, 0x00f7f7f700f7f7f7ULL,
+ 0x0099999900999999ULL, 0x0061616100616161ULL, 0x005a5a5a005a5a5aULL,
+ 0x00e8e8e800e8e8e8ULL, 0x0024242400242424ULL, 0x0056565600565656ULL,
+ 0x0040404000404040ULL, 0x00e1e1e100e1e1e1ULL, 0x0063636300636363ULL,
+ 0x0009090900090909ULL, 0x0033333300333333ULL, 0x00bfbfbf00bfbfbfULL,
+ 0x0098989800989898ULL, 0x0097979700979797ULL, 0x0085858500858585ULL,
+ 0x0068686800686868ULL, 0x00fcfcfc00fcfcfcULL, 0x00ececec00ecececULL,
+ 0x000a0a0a000a0a0aULL, 0x00dadada00dadadaULL, 0x006f6f6f006f6f6fULL,
+ 0x0053535300535353ULL, 0x0062626200626262ULL, 0x00a3a3a300a3a3a3ULL,
+ 0x002e2e2e002e2e2eULL, 0x0008080800080808ULL, 0x00afafaf00afafafULL,
+ 0x0028282800282828ULL, 0x00b0b0b000b0b0b0ULL, 0x0074747400747474ULL,
+ 0x00c2c2c200c2c2c2ULL, 0x00bdbdbd00bdbdbdULL, 0x0036363600363636ULL,
+ 0x0022222200222222ULL, 0x0038383800383838ULL, 0x0064646400646464ULL,
+ 0x001e1e1e001e1e1eULL, 0x0039393900393939ULL, 0x002c2c2c002c2c2cULL,
+ 0x00a6a6a600a6a6a6ULL, 0x0030303000303030ULL, 0x00e5e5e500e5e5e5ULL,
+ 0x0044444400444444ULL, 0x00fdfdfd00fdfdfdULL, 0x0088888800888888ULL,
+ 0x009f9f9f009f9f9fULL, 0x0065656500656565ULL, 0x0087878700878787ULL,
+ 0x006b6b6b006b6b6bULL, 0x00f4f4f400f4f4f4ULL, 0x0023232300232323ULL,
+ 0x0048484800484848ULL, 0x0010101000101010ULL, 0x00d1d1d100d1d1d1ULL,
+ 0x0051515100515151ULL, 0x00c0c0c000c0c0c0ULL, 0x00f9f9f900f9f9f9ULL,
+ 0x00d2d2d200d2d2d2ULL, 0x00a0a0a000a0a0a0ULL, 0x0055555500555555ULL,
+ 0x00a1a1a100a1a1a1ULL, 0x0041414100414141ULL, 0x00fafafa00fafafaULL,
+ 0x0043434300434343ULL, 0x0013131300131313ULL, 0x00c4c4c400c4c4c4ULL,
+ 0x002f2f2f002f2f2fULL, 0x00a8a8a800a8a8a8ULL, 0x00b6b6b600b6b6b6ULL,
+ 0x003c3c3c003c3c3cULL, 0x002b2b2b002b2b2bULL, 0x00c1c1c100c1c1c1ULL,
+ 0x00ffffff00ffffffULL, 0x00c8c8c800c8c8c8ULL, 0x00a5a5a500a5a5a5ULL,
+ 0x0020202000202020ULL, 0x0089898900898989ULL, 0x0000000000000000ULL,
+ 0x0090909000909090ULL, 0x0047474700474747ULL, 0x00efefef00efefefULL,
+ 0x00eaeaea00eaeaeaULL, 0x00b7b7b700b7b7b7ULL, 0x0015151500151515ULL,
+ 0x0006060600060606ULL, 0x00cdcdcd00cdcdcdULL, 0x00b5b5b500b5b5b5ULL,
+ 0x0012121200121212ULL, 0x007e7e7e007e7e7eULL, 0x00bbbbbb00bbbbbbULL,
+ 0x0029292900292929ULL, 0x000f0f0f000f0f0fULL, 0x00b8b8b800b8b8b8ULL,
+ 0x0007070700070707ULL, 0x0004040400040404ULL, 0x009b9b9b009b9b9bULL,
+ 0x0094949400949494ULL, 0x0021212100212121ULL, 0x0066666600666666ULL,
+ 0x00e6e6e600e6e6e6ULL, 0x00cecece00cececeULL, 0x00ededed00edededULL,
+ 0x00e7e7e700e7e7e7ULL, 0x003b3b3b003b3b3bULL, 0x00fefefe00fefefeULL,
+ 0x007f7f7f007f7f7fULL, 0x00c5c5c500c5c5c5ULL, 0x00a4a4a400a4a4a4ULL,
+ 0x0037373700373737ULL, 0x00b1b1b100b1b1b1ULL, 0x004c4c4c004c4c4cULL,
+ 0x0091919100919191ULL, 0x006e6e6e006e6e6eULL, 0x008d8d8d008d8d8dULL,
+ 0x0076767600767676ULL, 0x0003030300030303ULL, 0x002d2d2d002d2d2dULL,
+ 0x00dedede00dededeULL, 0x0096969600969696ULL, 0x0026262600262626ULL,
+ 0x007d7d7d007d7d7dULL, 0x00c6c6c600c6c6c6ULL, 0x005c5c5c005c5c5cULL,
+ 0x00d3d3d300d3d3d3ULL, 0x00f2f2f200f2f2f2ULL, 0x004f4f4f004f4f4fULL,
+ 0x0019191900191919ULL, 0x003f3f3f003f3f3fULL, 0x00dcdcdc00dcdcdcULL,
+ 0x0079797900797979ULL, 0x001d1d1d001d1d1dULL, 0x0052525200525252ULL,
+ 0x00ebebeb00ebebebULL, 0x00f3f3f300f3f3f3ULL, 0x006d6d6d006d6d6dULL,
+ 0x005e5e5e005e5e5eULL, 0x00fbfbfb00fbfbfbULL, 0x0069696900696969ULL,
+ 0x00b2b2b200b2b2b2ULL, 0x00f0f0f000f0f0f0ULL, 0x0031313100313131ULL,
+ 0x000c0c0c000c0c0cULL, 0x00d4d4d400d4d4d4ULL, 0x00cfcfcf00cfcfcfULL,
+ 0x008c8c8c008c8c8cULL, 0x00e2e2e200e2e2e2ULL, 0x0075757500757575ULL,
+ 0x00a9a9a900a9a9a9ULL, 0x004a4a4a004a4a4aULL, 0x0057575700575757ULL,
+ 0x0084848400848484ULL, 0x0011111100111111ULL, 0x0045454500454545ULL,
+ 0x001b1b1b001b1b1bULL, 0x00f5f5f500f5f5f5ULL, 0x00e4e4e400e4e4e4ULL,
+ 0x000e0e0e000e0e0eULL, 0x0073737300737373ULL, 0x00aaaaaa00aaaaaaULL,
+ 0x00f1f1f100f1f1f1ULL, 0x00dddddd00ddddddULL, 0x0059595900595959ULL,
+ 0x0014141400141414ULL, 0x006c6c6c006c6c6cULL, 0x0092929200929292ULL,
+ 0x0054545400545454ULL, 0x00d0d0d000d0d0d0ULL, 0x0078787800787878ULL,
+ 0x0070707000707070ULL, 0x00e3e3e300e3e3e3ULL, 0x0049494900494949ULL,
+ 0x0080808000808080ULL, 0x0050505000505050ULL, 0x00a7a7a700a7a7a7ULL,
+ 0x00f6f6f600f6f6f6ULL, 0x0077777700777777ULL, 0x0093939300939393ULL,
+ 0x0086868600868686ULL, 0x0083838300838383ULL, 0x002a2a2a002a2a2aULL,
+ 0x00c7c7c700c7c7c7ULL, 0x005b5b5b005b5b5bULL, 0x00e9e9e900e9e9e9ULL,
+ 0x00eeeeee00eeeeeeULL, 0x008f8f8f008f8f8fULL, 0x0001010100010101ULL,
+ 0x003d3d3d003d3d3dULL,
+};
+
+__visible const u64 camellia_sp30333033[256] = {
+ 0x3800383838003838ULL, 0x4100414141004141ULL, 0x1600161616001616ULL,
+ 0x7600767676007676ULL, 0xd900d9d9d900d9d9ULL, 0x9300939393009393ULL,
+ 0x6000606060006060ULL, 0xf200f2f2f200f2f2ULL, 0x7200727272007272ULL,
+ 0xc200c2c2c200c2c2ULL, 0xab00ababab00ababULL, 0x9a009a9a9a009a9aULL,
+ 0x7500757575007575ULL, 0x0600060606000606ULL, 0x5700575757005757ULL,
+ 0xa000a0a0a000a0a0ULL, 0x9100919191009191ULL, 0xf700f7f7f700f7f7ULL,
+ 0xb500b5b5b500b5b5ULL, 0xc900c9c9c900c9c9ULL, 0xa200a2a2a200a2a2ULL,
+ 0x8c008c8c8c008c8cULL, 0xd200d2d2d200d2d2ULL, 0x9000909090009090ULL,
+ 0xf600f6f6f600f6f6ULL, 0x0700070707000707ULL, 0xa700a7a7a700a7a7ULL,
+ 0x2700272727002727ULL, 0x8e008e8e8e008e8eULL, 0xb200b2b2b200b2b2ULL,
+ 0x4900494949004949ULL, 0xde00dedede00dedeULL, 0x4300434343004343ULL,
+ 0x5c005c5c5c005c5cULL, 0xd700d7d7d700d7d7ULL, 0xc700c7c7c700c7c7ULL,
+ 0x3e003e3e3e003e3eULL, 0xf500f5f5f500f5f5ULL, 0x8f008f8f8f008f8fULL,
+ 0x6700676767006767ULL, 0x1f001f1f1f001f1fULL, 0x1800181818001818ULL,
+ 0x6e006e6e6e006e6eULL, 0xaf00afafaf00afafULL, 0x2f002f2f2f002f2fULL,
+ 0xe200e2e2e200e2e2ULL, 0x8500858585008585ULL, 0x0d000d0d0d000d0dULL,
+ 0x5300535353005353ULL, 0xf000f0f0f000f0f0ULL, 0x9c009c9c9c009c9cULL,
+ 0x6500656565006565ULL, 0xea00eaeaea00eaeaULL, 0xa300a3a3a300a3a3ULL,
+ 0xae00aeaeae00aeaeULL, 0x9e009e9e9e009e9eULL, 0xec00ececec00ececULL,
+ 0x8000808080008080ULL, 0x2d002d2d2d002d2dULL, 0x6b006b6b6b006b6bULL,
+ 0xa800a8a8a800a8a8ULL, 0x2b002b2b2b002b2bULL, 0x3600363636003636ULL,
+ 0xa600a6a6a600a6a6ULL, 0xc500c5c5c500c5c5ULL, 0x8600868686008686ULL,
+ 0x4d004d4d4d004d4dULL, 0x3300333333003333ULL, 0xfd00fdfdfd00fdfdULL,
+ 0x6600666666006666ULL, 0x5800585858005858ULL, 0x9600969696009696ULL,
+ 0x3a003a3a3a003a3aULL, 0x0900090909000909ULL, 0x9500959595009595ULL,
+ 0x1000101010001010ULL, 0x7800787878007878ULL, 0xd800d8d8d800d8d8ULL,
+ 0x4200424242004242ULL, 0xcc00cccccc00ccccULL, 0xef00efefef00efefULL,
+ 0x2600262626002626ULL, 0xe500e5e5e500e5e5ULL, 0x6100616161006161ULL,
+ 0x1a001a1a1a001a1aULL, 0x3f003f3f3f003f3fULL, 0x3b003b3b3b003b3bULL,
+ 0x8200828282008282ULL, 0xb600b6b6b600b6b6ULL, 0xdb00dbdbdb00dbdbULL,
+ 0xd400d4d4d400d4d4ULL, 0x9800989898009898ULL, 0xe800e8e8e800e8e8ULL,
+ 0x8b008b8b8b008b8bULL, 0x0200020202000202ULL, 0xeb00ebebeb00ebebULL,
+ 0x0a000a0a0a000a0aULL, 0x2c002c2c2c002c2cULL, 0x1d001d1d1d001d1dULL,
+ 0xb000b0b0b000b0b0ULL, 0x6f006f6f6f006f6fULL, 0x8d008d8d8d008d8dULL,
+ 0x8800888888008888ULL, 0x0e000e0e0e000e0eULL, 0x1900191919001919ULL,
+ 0x8700878787008787ULL, 0x4e004e4e4e004e4eULL, 0x0b000b0b0b000b0bULL,
+ 0xa900a9a9a900a9a9ULL, 0x0c000c0c0c000c0cULL, 0x7900797979007979ULL,
+ 0x1100111111001111ULL, 0x7f007f7f7f007f7fULL, 0x2200222222002222ULL,
+ 0xe700e7e7e700e7e7ULL, 0x5900595959005959ULL, 0xe100e1e1e100e1e1ULL,
+ 0xda00dadada00dadaULL, 0x3d003d3d3d003d3dULL, 0xc800c8c8c800c8c8ULL,
+ 0x1200121212001212ULL, 0x0400040404000404ULL, 0x7400747474007474ULL,
+ 0x5400545454005454ULL, 0x3000303030003030ULL, 0x7e007e7e7e007e7eULL,
+ 0xb400b4b4b400b4b4ULL, 0x2800282828002828ULL, 0x5500555555005555ULL,
+ 0x6800686868006868ULL, 0x5000505050005050ULL, 0xbe00bebebe00bebeULL,
+ 0xd000d0d0d000d0d0ULL, 0xc400c4c4c400c4c4ULL, 0x3100313131003131ULL,
+ 0xcb00cbcbcb00cbcbULL, 0x2a002a2a2a002a2aULL, 0xad00adadad00adadULL,
+ 0x0f000f0f0f000f0fULL, 0xca00cacaca00cacaULL, 0x7000707070007070ULL,
+ 0xff00ffffff00ffffULL, 0x3200323232003232ULL, 0x6900696969006969ULL,
+ 0x0800080808000808ULL, 0x6200626262006262ULL, 0x0000000000000000ULL,
+ 0x2400242424002424ULL, 0xd100d1d1d100d1d1ULL, 0xfb00fbfbfb00fbfbULL,
+ 0xba00bababa00babaULL, 0xed00ededed00ededULL, 0x4500454545004545ULL,
+ 0x8100818181008181ULL, 0x7300737373007373ULL, 0x6d006d6d6d006d6dULL,
+ 0x8400848484008484ULL, 0x9f009f9f9f009f9fULL, 0xee00eeeeee00eeeeULL,
+ 0x4a004a4a4a004a4aULL, 0xc300c3c3c300c3c3ULL, 0x2e002e2e2e002e2eULL,
+ 0xc100c1c1c100c1c1ULL, 0x0100010101000101ULL, 0xe600e6e6e600e6e6ULL,
+ 0x2500252525002525ULL, 0x4800484848004848ULL, 0x9900999999009999ULL,
+ 0xb900b9b9b900b9b9ULL, 0xb300b3b3b300b3b3ULL, 0x7b007b7b7b007b7bULL,
+ 0xf900f9f9f900f9f9ULL, 0xce00cecece00ceceULL, 0xbf00bfbfbf00bfbfULL,
+ 0xdf00dfdfdf00dfdfULL, 0x7100717171007171ULL, 0x2900292929002929ULL,
+ 0xcd00cdcdcd00cdcdULL, 0x6c006c6c6c006c6cULL, 0x1300131313001313ULL,
+ 0x6400646464006464ULL, 0x9b009b9b9b009b9bULL, 0x6300636363006363ULL,
+ 0x9d009d9d9d009d9dULL, 0xc000c0c0c000c0c0ULL, 0x4b004b4b4b004b4bULL,
+ 0xb700b7b7b700b7b7ULL, 0xa500a5a5a500a5a5ULL, 0x8900898989008989ULL,
+ 0x5f005f5f5f005f5fULL, 0xb100b1b1b100b1b1ULL, 0x1700171717001717ULL,
+ 0xf400f4f4f400f4f4ULL, 0xbc00bcbcbc00bcbcULL, 0xd300d3d3d300d3d3ULL,
+ 0x4600464646004646ULL, 0xcf00cfcfcf00cfcfULL, 0x3700373737003737ULL,
+ 0x5e005e5e5e005e5eULL, 0x4700474747004747ULL, 0x9400949494009494ULL,
+ 0xfa00fafafa00fafaULL, 0xfc00fcfcfc00fcfcULL, 0x5b005b5b5b005b5bULL,
+ 0x9700979797009797ULL, 0xfe00fefefe00fefeULL, 0x5a005a5a5a005a5aULL,
+ 0xac00acacac00acacULL, 0x3c003c3c3c003c3cULL, 0x4c004c4c4c004c4cULL,
+ 0x0300030303000303ULL, 0x3500353535003535ULL, 0xf300f3f3f300f3f3ULL,
+ 0x2300232323002323ULL, 0xb800b8b8b800b8b8ULL, 0x5d005d5d5d005d5dULL,
+ 0x6a006a6a6a006a6aULL, 0x9200929292009292ULL, 0xd500d5d5d500d5d5ULL,
+ 0x2100212121002121ULL, 0x4400444444004444ULL, 0x5100515151005151ULL,
+ 0xc600c6c6c600c6c6ULL, 0x7d007d7d7d007d7dULL, 0x3900393939003939ULL,
+ 0x8300838383008383ULL, 0xdc00dcdcdc00dcdcULL, 0xaa00aaaaaa00aaaaULL,
+ 0x7c007c7c7c007c7cULL, 0x7700777777007777ULL, 0x5600565656005656ULL,
+ 0x0500050505000505ULL, 0x1b001b1b1b001b1bULL, 0xa400a4a4a400a4a4ULL,
+ 0x1500151515001515ULL, 0x3400343434003434ULL, 0x1e001e1e1e001e1eULL,
+ 0x1c001c1c1c001c1cULL, 0xf800f8f8f800f8f8ULL, 0x5200525252005252ULL,
+ 0x2000202020002020ULL, 0x1400141414001414ULL, 0xe900e9e9e900e9e9ULL,
+ 0xbd00bdbdbd00bdbdULL, 0xdd00dddddd00ddddULL, 0xe400e4e4e400e4e4ULL,
+ 0xa100a1a1a100a1a1ULL, 0xe000e0e0e000e0e0ULL, 0x8a008a8a8a008a8aULL,
+ 0xf100f1f1f100f1f1ULL, 0xd600d6d6d600d6d6ULL, 0x7a007a7a7a007a7aULL,
+ 0xbb00bbbbbb00bbbbULL, 0xe300e3e3e300e3e3ULL, 0x4000404040004040ULL,
+ 0x4f004f4f4f004f4fULL,
+};
+
+__visible const u64 camellia_sp44044404[256] = {
+ 0x7070007070700070ULL, 0x2c2c002c2c2c002cULL, 0xb3b300b3b3b300b3ULL,
+ 0xc0c000c0c0c000c0ULL, 0xe4e400e4e4e400e4ULL, 0x5757005757570057ULL,
+ 0xeaea00eaeaea00eaULL, 0xaeae00aeaeae00aeULL, 0x2323002323230023ULL,
+ 0x6b6b006b6b6b006bULL, 0x4545004545450045ULL, 0xa5a500a5a5a500a5ULL,
+ 0xeded00ededed00edULL, 0x4f4f004f4f4f004fULL, 0x1d1d001d1d1d001dULL,
+ 0x9292009292920092ULL, 0x8686008686860086ULL, 0xafaf00afafaf00afULL,
+ 0x7c7c007c7c7c007cULL, 0x1f1f001f1f1f001fULL, 0x3e3e003e3e3e003eULL,
+ 0xdcdc00dcdcdc00dcULL, 0x5e5e005e5e5e005eULL, 0x0b0b000b0b0b000bULL,
+ 0xa6a600a6a6a600a6ULL, 0x3939003939390039ULL, 0xd5d500d5d5d500d5ULL,
+ 0x5d5d005d5d5d005dULL, 0xd9d900d9d9d900d9ULL, 0x5a5a005a5a5a005aULL,
+ 0x5151005151510051ULL, 0x6c6c006c6c6c006cULL, 0x8b8b008b8b8b008bULL,
+ 0x9a9a009a9a9a009aULL, 0xfbfb00fbfbfb00fbULL, 0xb0b000b0b0b000b0ULL,
+ 0x7474007474740074ULL, 0x2b2b002b2b2b002bULL, 0xf0f000f0f0f000f0ULL,
+ 0x8484008484840084ULL, 0xdfdf00dfdfdf00dfULL, 0xcbcb00cbcbcb00cbULL,
+ 0x3434003434340034ULL, 0x7676007676760076ULL, 0x6d6d006d6d6d006dULL,
+ 0xa9a900a9a9a900a9ULL, 0xd1d100d1d1d100d1ULL, 0x0404000404040004ULL,
+ 0x1414001414140014ULL, 0x3a3a003a3a3a003aULL, 0xdede00dedede00deULL,
+ 0x1111001111110011ULL, 0x3232003232320032ULL, 0x9c9c009c9c9c009cULL,
+ 0x5353005353530053ULL, 0xf2f200f2f2f200f2ULL, 0xfefe00fefefe00feULL,
+ 0xcfcf00cfcfcf00cfULL, 0xc3c300c3c3c300c3ULL, 0x7a7a007a7a7a007aULL,
+ 0x2424002424240024ULL, 0xe8e800e8e8e800e8ULL, 0x6060006060600060ULL,
+ 0x6969006969690069ULL, 0xaaaa00aaaaaa00aaULL, 0xa0a000a0a0a000a0ULL,
+ 0xa1a100a1a1a100a1ULL, 0x6262006262620062ULL, 0x5454005454540054ULL,
+ 0x1e1e001e1e1e001eULL, 0xe0e000e0e0e000e0ULL, 0x6464006464640064ULL,
+ 0x1010001010100010ULL, 0x0000000000000000ULL, 0xa3a300a3a3a300a3ULL,
+ 0x7575007575750075ULL, 0x8a8a008a8a8a008aULL, 0xe6e600e6e6e600e6ULL,
+ 0x0909000909090009ULL, 0xdddd00dddddd00ddULL, 0x8787008787870087ULL,
+ 0x8383008383830083ULL, 0xcdcd00cdcdcd00cdULL, 0x9090009090900090ULL,
+ 0x7373007373730073ULL, 0xf6f600f6f6f600f6ULL, 0x9d9d009d9d9d009dULL,
+ 0xbfbf00bfbfbf00bfULL, 0x5252005252520052ULL, 0xd8d800d8d8d800d8ULL,
+ 0xc8c800c8c8c800c8ULL, 0xc6c600c6c6c600c6ULL, 0x8181008181810081ULL,
+ 0x6f6f006f6f6f006fULL, 0x1313001313130013ULL, 0x6363006363630063ULL,
+ 0xe9e900e9e9e900e9ULL, 0xa7a700a7a7a700a7ULL, 0x9f9f009f9f9f009fULL,
+ 0xbcbc00bcbcbc00bcULL, 0x2929002929290029ULL, 0xf9f900f9f9f900f9ULL,
+ 0x2f2f002f2f2f002fULL, 0xb4b400b4b4b400b4ULL, 0x7878007878780078ULL,
+ 0x0606000606060006ULL, 0xe7e700e7e7e700e7ULL, 0x7171007171710071ULL,
+ 0xd4d400d4d4d400d4ULL, 0xabab00ababab00abULL, 0x8888008888880088ULL,
+ 0x8d8d008d8d8d008dULL, 0x7272007272720072ULL, 0xb9b900b9b9b900b9ULL,
+ 0xf8f800f8f8f800f8ULL, 0xacac00acacac00acULL, 0x3636003636360036ULL,
+ 0x2a2a002a2a2a002aULL, 0x3c3c003c3c3c003cULL, 0xf1f100f1f1f100f1ULL,
+ 0x4040004040400040ULL, 0xd3d300d3d3d300d3ULL, 0xbbbb00bbbbbb00bbULL,
+ 0x4343004343430043ULL, 0x1515001515150015ULL, 0xadad00adadad00adULL,
+ 0x7777007777770077ULL, 0x8080008080800080ULL, 0x8282008282820082ULL,
+ 0xecec00ececec00ecULL, 0x2727002727270027ULL, 0xe5e500e5e5e500e5ULL,
+ 0x8585008585850085ULL, 0x3535003535350035ULL, 0x0c0c000c0c0c000cULL,
+ 0x4141004141410041ULL, 0xefef00efefef00efULL, 0x9393009393930093ULL,
+ 0x1919001919190019ULL, 0x2121002121210021ULL, 0x0e0e000e0e0e000eULL,
+ 0x4e4e004e4e4e004eULL, 0x6565006565650065ULL, 0xbdbd00bdbdbd00bdULL,
+ 0xb8b800b8b8b800b8ULL, 0x8f8f008f8f8f008fULL, 0xebeb00ebebeb00ebULL,
+ 0xcece00cecece00ceULL, 0x3030003030300030ULL, 0x5f5f005f5f5f005fULL,
+ 0xc5c500c5c5c500c5ULL, 0x1a1a001a1a1a001aULL, 0xe1e100e1e1e100e1ULL,
+ 0xcaca00cacaca00caULL, 0x4747004747470047ULL, 0x3d3d003d3d3d003dULL,
+ 0x0101000101010001ULL, 0xd6d600d6d6d600d6ULL, 0x5656005656560056ULL,
+ 0x4d4d004d4d4d004dULL, 0x0d0d000d0d0d000dULL, 0x6666006666660066ULL,
+ 0xcccc00cccccc00ccULL, 0x2d2d002d2d2d002dULL, 0x1212001212120012ULL,
+ 0x2020002020200020ULL, 0xb1b100b1b1b100b1ULL, 0x9999009999990099ULL,
+ 0x4c4c004c4c4c004cULL, 0xc2c200c2c2c200c2ULL, 0x7e7e007e7e7e007eULL,
+ 0x0505000505050005ULL, 0xb7b700b7b7b700b7ULL, 0x3131003131310031ULL,
+ 0x1717001717170017ULL, 0xd7d700d7d7d700d7ULL, 0x5858005858580058ULL,
+ 0x6161006161610061ULL, 0x1b1b001b1b1b001bULL, 0x1c1c001c1c1c001cULL,
+ 0x0f0f000f0f0f000fULL, 0x1616001616160016ULL, 0x1818001818180018ULL,
+ 0x2222002222220022ULL, 0x4444004444440044ULL, 0xb2b200b2b2b200b2ULL,
+ 0xb5b500b5b5b500b5ULL, 0x9191009191910091ULL, 0x0808000808080008ULL,
+ 0xa8a800a8a8a800a8ULL, 0xfcfc00fcfcfc00fcULL, 0x5050005050500050ULL,
+ 0xd0d000d0d0d000d0ULL, 0x7d7d007d7d7d007dULL, 0x8989008989890089ULL,
+ 0x9797009797970097ULL, 0x5b5b005b5b5b005bULL, 0x9595009595950095ULL,
+ 0xffff00ffffff00ffULL, 0xd2d200d2d2d200d2ULL, 0xc4c400c4c4c400c4ULL,
+ 0x4848004848480048ULL, 0xf7f700f7f7f700f7ULL, 0xdbdb00dbdbdb00dbULL,
+ 0x0303000303030003ULL, 0xdada00dadada00daULL, 0x3f3f003f3f3f003fULL,
+ 0x9494009494940094ULL, 0x5c5c005c5c5c005cULL, 0x0202000202020002ULL,
+ 0x4a4a004a4a4a004aULL, 0x3333003333330033ULL, 0x6767006767670067ULL,
+ 0xf3f300f3f3f300f3ULL, 0x7f7f007f7f7f007fULL, 0xe2e200e2e2e200e2ULL,
+ 0x9b9b009b9b9b009bULL, 0x2626002626260026ULL, 0x3737003737370037ULL,
+ 0x3b3b003b3b3b003bULL, 0x9696009696960096ULL, 0x4b4b004b4b4b004bULL,
+ 0xbebe00bebebe00beULL, 0x2e2e002e2e2e002eULL, 0x7979007979790079ULL,
+ 0x8c8c008c8c8c008cULL, 0x6e6e006e6e6e006eULL, 0x8e8e008e8e8e008eULL,
+ 0xf5f500f5f5f500f5ULL, 0xb6b600b6b6b600b6ULL, 0xfdfd00fdfdfd00fdULL,
+ 0x5959005959590059ULL, 0x9898009898980098ULL, 0x6a6a006a6a6a006aULL,
+ 0x4646004646460046ULL, 0xbaba00bababa00baULL, 0x2525002525250025ULL,
+ 0x4242004242420042ULL, 0xa2a200a2a2a200a2ULL, 0xfafa00fafafa00faULL,
+ 0x0707000707070007ULL, 0x5555005555550055ULL, 0xeeee00eeeeee00eeULL,
+ 0x0a0a000a0a0a000aULL, 0x4949004949490049ULL, 0x6868006868680068ULL,
+ 0x3838003838380038ULL, 0xa4a400a4a4a400a4ULL, 0x2828002828280028ULL,
+ 0x7b7b007b7b7b007bULL, 0xc9c900c9c9c900c9ULL, 0xc1c100c1c1c100c1ULL,
+ 0xe3e300e3e3e300e3ULL, 0xf4f400f4f4f400f4ULL, 0xc7c700c7c7c700c7ULL,
+ 0x9e9e009e9e9e009eULL,
+};
+
+__visible const u64 camellia_sp11101110[256] = {
+ 0x7070700070707000ULL, 0x8282820082828200ULL, 0x2c2c2c002c2c2c00ULL,
+ 0xececec00ececec00ULL, 0xb3b3b300b3b3b300ULL, 0x2727270027272700ULL,
+ 0xc0c0c000c0c0c000ULL, 0xe5e5e500e5e5e500ULL, 0xe4e4e400e4e4e400ULL,
+ 0x8585850085858500ULL, 0x5757570057575700ULL, 0x3535350035353500ULL,
+ 0xeaeaea00eaeaea00ULL, 0x0c0c0c000c0c0c00ULL, 0xaeaeae00aeaeae00ULL,
+ 0x4141410041414100ULL, 0x2323230023232300ULL, 0xefefef00efefef00ULL,
+ 0x6b6b6b006b6b6b00ULL, 0x9393930093939300ULL, 0x4545450045454500ULL,
+ 0x1919190019191900ULL, 0xa5a5a500a5a5a500ULL, 0x2121210021212100ULL,
+ 0xededed00ededed00ULL, 0x0e0e0e000e0e0e00ULL, 0x4f4f4f004f4f4f00ULL,
+ 0x4e4e4e004e4e4e00ULL, 0x1d1d1d001d1d1d00ULL, 0x6565650065656500ULL,
+ 0x9292920092929200ULL, 0xbdbdbd00bdbdbd00ULL, 0x8686860086868600ULL,
+ 0xb8b8b800b8b8b800ULL, 0xafafaf00afafaf00ULL, 0x8f8f8f008f8f8f00ULL,
+ 0x7c7c7c007c7c7c00ULL, 0xebebeb00ebebeb00ULL, 0x1f1f1f001f1f1f00ULL,
+ 0xcecece00cecece00ULL, 0x3e3e3e003e3e3e00ULL, 0x3030300030303000ULL,
+ 0xdcdcdc00dcdcdc00ULL, 0x5f5f5f005f5f5f00ULL, 0x5e5e5e005e5e5e00ULL,
+ 0xc5c5c500c5c5c500ULL, 0x0b0b0b000b0b0b00ULL, 0x1a1a1a001a1a1a00ULL,
+ 0xa6a6a600a6a6a600ULL, 0xe1e1e100e1e1e100ULL, 0x3939390039393900ULL,
+ 0xcacaca00cacaca00ULL, 0xd5d5d500d5d5d500ULL, 0x4747470047474700ULL,
+ 0x5d5d5d005d5d5d00ULL, 0x3d3d3d003d3d3d00ULL, 0xd9d9d900d9d9d900ULL,
+ 0x0101010001010100ULL, 0x5a5a5a005a5a5a00ULL, 0xd6d6d600d6d6d600ULL,
+ 0x5151510051515100ULL, 0x5656560056565600ULL, 0x6c6c6c006c6c6c00ULL,
+ 0x4d4d4d004d4d4d00ULL, 0x8b8b8b008b8b8b00ULL, 0x0d0d0d000d0d0d00ULL,
+ 0x9a9a9a009a9a9a00ULL, 0x6666660066666600ULL, 0xfbfbfb00fbfbfb00ULL,
+ 0xcccccc00cccccc00ULL, 0xb0b0b000b0b0b000ULL, 0x2d2d2d002d2d2d00ULL,
+ 0x7474740074747400ULL, 0x1212120012121200ULL, 0x2b2b2b002b2b2b00ULL,
+ 0x2020200020202000ULL, 0xf0f0f000f0f0f000ULL, 0xb1b1b100b1b1b100ULL,
+ 0x8484840084848400ULL, 0x9999990099999900ULL, 0xdfdfdf00dfdfdf00ULL,
+ 0x4c4c4c004c4c4c00ULL, 0xcbcbcb00cbcbcb00ULL, 0xc2c2c200c2c2c200ULL,
+ 0x3434340034343400ULL, 0x7e7e7e007e7e7e00ULL, 0x7676760076767600ULL,
+ 0x0505050005050500ULL, 0x6d6d6d006d6d6d00ULL, 0xb7b7b700b7b7b700ULL,
+ 0xa9a9a900a9a9a900ULL, 0x3131310031313100ULL, 0xd1d1d100d1d1d100ULL,
+ 0x1717170017171700ULL, 0x0404040004040400ULL, 0xd7d7d700d7d7d700ULL,
+ 0x1414140014141400ULL, 0x5858580058585800ULL, 0x3a3a3a003a3a3a00ULL,
+ 0x6161610061616100ULL, 0xdedede00dedede00ULL, 0x1b1b1b001b1b1b00ULL,
+ 0x1111110011111100ULL, 0x1c1c1c001c1c1c00ULL, 0x3232320032323200ULL,
+ 0x0f0f0f000f0f0f00ULL, 0x9c9c9c009c9c9c00ULL, 0x1616160016161600ULL,
+ 0x5353530053535300ULL, 0x1818180018181800ULL, 0xf2f2f200f2f2f200ULL,
+ 0x2222220022222200ULL, 0xfefefe00fefefe00ULL, 0x4444440044444400ULL,
+ 0xcfcfcf00cfcfcf00ULL, 0xb2b2b200b2b2b200ULL, 0xc3c3c300c3c3c300ULL,
+ 0xb5b5b500b5b5b500ULL, 0x7a7a7a007a7a7a00ULL, 0x9191910091919100ULL,
+ 0x2424240024242400ULL, 0x0808080008080800ULL, 0xe8e8e800e8e8e800ULL,
+ 0xa8a8a800a8a8a800ULL, 0x6060600060606000ULL, 0xfcfcfc00fcfcfc00ULL,
+ 0x6969690069696900ULL, 0x5050500050505000ULL, 0xaaaaaa00aaaaaa00ULL,
+ 0xd0d0d000d0d0d000ULL, 0xa0a0a000a0a0a000ULL, 0x7d7d7d007d7d7d00ULL,
+ 0xa1a1a100a1a1a100ULL, 0x8989890089898900ULL, 0x6262620062626200ULL,
+ 0x9797970097979700ULL, 0x5454540054545400ULL, 0x5b5b5b005b5b5b00ULL,
+ 0x1e1e1e001e1e1e00ULL, 0x9595950095959500ULL, 0xe0e0e000e0e0e000ULL,
+ 0xffffff00ffffff00ULL, 0x6464640064646400ULL, 0xd2d2d200d2d2d200ULL,
+ 0x1010100010101000ULL, 0xc4c4c400c4c4c400ULL, 0x0000000000000000ULL,
+ 0x4848480048484800ULL, 0xa3a3a300a3a3a300ULL, 0xf7f7f700f7f7f700ULL,
+ 0x7575750075757500ULL, 0xdbdbdb00dbdbdb00ULL, 0x8a8a8a008a8a8a00ULL,
+ 0x0303030003030300ULL, 0xe6e6e600e6e6e600ULL, 0xdadada00dadada00ULL,
+ 0x0909090009090900ULL, 0x3f3f3f003f3f3f00ULL, 0xdddddd00dddddd00ULL,
+ 0x9494940094949400ULL, 0x8787870087878700ULL, 0x5c5c5c005c5c5c00ULL,
+ 0x8383830083838300ULL, 0x0202020002020200ULL, 0xcdcdcd00cdcdcd00ULL,
+ 0x4a4a4a004a4a4a00ULL, 0x9090900090909000ULL, 0x3333330033333300ULL,
+ 0x7373730073737300ULL, 0x6767670067676700ULL, 0xf6f6f600f6f6f600ULL,
+ 0xf3f3f300f3f3f300ULL, 0x9d9d9d009d9d9d00ULL, 0x7f7f7f007f7f7f00ULL,
+ 0xbfbfbf00bfbfbf00ULL, 0xe2e2e200e2e2e200ULL, 0x5252520052525200ULL,
+ 0x9b9b9b009b9b9b00ULL, 0xd8d8d800d8d8d800ULL, 0x2626260026262600ULL,
+ 0xc8c8c800c8c8c800ULL, 0x3737370037373700ULL, 0xc6c6c600c6c6c600ULL,
+ 0x3b3b3b003b3b3b00ULL, 0x8181810081818100ULL, 0x9696960096969600ULL,
+ 0x6f6f6f006f6f6f00ULL, 0x4b4b4b004b4b4b00ULL, 0x1313130013131300ULL,
+ 0xbebebe00bebebe00ULL, 0x6363630063636300ULL, 0x2e2e2e002e2e2e00ULL,
+ 0xe9e9e900e9e9e900ULL, 0x7979790079797900ULL, 0xa7a7a700a7a7a700ULL,
+ 0x8c8c8c008c8c8c00ULL, 0x9f9f9f009f9f9f00ULL, 0x6e6e6e006e6e6e00ULL,
+ 0xbcbcbc00bcbcbc00ULL, 0x8e8e8e008e8e8e00ULL, 0x2929290029292900ULL,
+ 0xf5f5f500f5f5f500ULL, 0xf9f9f900f9f9f900ULL, 0xb6b6b600b6b6b600ULL,
+ 0x2f2f2f002f2f2f00ULL, 0xfdfdfd00fdfdfd00ULL, 0xb4b4b400b4b4b400ULL,
+ 0x5959590059595900ULL, 0x7878780078787800ULL, 0x9898980098989800ULL,
+ 0x0606060006060600ULL, 0x6a6a6a006a6a6a00ULL, 0xe7e7e700e7e7e700ULL,
+ 0x4646460046464600ULL, 0x7171710071717100ULL, 0xbababa00bababa00ULL,
+ 0xd4d4d400d4d4d400ULL, 0x2525250025252500ULL, 0xababab00ababab00ULL,
+ 0x4242420042424200ULL, 0x8888880088888800ULL, 0xa2a2a200a2a2a200ULL,
+ 0x8d8d8d008d8d8d00ULL, 0xfafafa00fafafa00ULL, 0x7272720072727200ULL,
+ 0x0707070007070700ULL, 0xb9b9b900b9b9b900ULL, 0x5555550055555500ULL,
+ 0xf8f8f800f8f8f800ULL, 0xeeeeee00eeeeee00ULL, 0xacacac00acacac00ULL,
+ 0x0a0a0a000a0a0a00ULL, 0x3636360036363600ULL, 0x4949490049494900ULL,
+ 0x2a2a2a002a2a2a00ULL, 0x6868680068686800ULL, 0x3c3c3c003c3c3c00ULL,
+ 0x3838380038383800ULL, 0xf1f1f100f1f1f100ULL, 0xa4a4a400a4a4a400ULL,
+ 0x4040400040404000ULL, 0x2828280028282800ULL, 0xd3d3d300d3d3d300ULL,
+ 0x7b7b7b007b7b7b00ULL, 0xbbbbbb00bbbbbb00ULL, 0xc9c9c900c9c9c900ULL,
+ 0x4343430043434300ULL, 0xc1c1c100c1c1c100ULL, 0x1515150015151500ULL,
+ 0xe3e3e300e3e3e300ULL, 0xadadad00adadad00ULL, 0xf4f4f400f4f4f400ULL,
+ 0x7777770077777700ULL, 0xc7c7c700c7c7c700ULL, 0x8080800080808000ULL,
+ 0x9e9e9e009e9e9e00ULL,
+};
+
+/* key constants */
+#define CAMELLIA_SIGMA1L (0xA09E667FL)
+#define CAMELLIA_SIGMA1R (0x3BCC908BL)
+#define CAMELLIA_SIGMA2L (0xB67AE858L)
+#define CAMELLIA_SIGMA2R (0x4CAA73B2L)
+#define CAMELLIA_SIGMA3L (0xC6EF372FL)
+#define CAMELLIA_SIGMA3R (0xE94F82BEL)
+#define CAMELLIA_SIGMA4L (0x54FF53A5L)
+#define CAMELLIA_SIGMA4R (0xF1D36F1CL)
+#define CAMELLIA_SIGMA5L (0x10E527FAL)
+#define CAMELLIA_SIGMA5R (0xDE682D1DL)
+#define CAMELLIA_SIGMA6L (0xB05688C2L)
+#define CAMELLIA_SIGMA6R (0xB3E6C1FDL)
+
+/* macros */
+#define ROLDQ(l, r, bits) ({ \
+ u64 t = l; \
+ l = (l << bits) | (r >> (64 - bits)); \
+ r = (r << bits) | (t >> (64 - bits)); \
+})
+
+#define CAMELLIA_F(x, kl, kr, y) ({ \
+ u64 ii = x ^ (((u64)kl << 32) | kr); \
+ y = camellia_sp11101110[(uint8_t)ii]; \
+ y ^= camellia_sp44044404[(uint8_t)(ii >> 8)]; \
+ ii >>= 16; \
+ y ^= camellia_sp30333033[(uint8_t)ii]; \
+ y ^= camellia_sp02220222[(uint8_t)(ii >> 8)]; \
+ ii >>= 16; \
+ y ^= camellia_sp00444404[(uint8_t)ii]; \
+ y ^= camellia_sp03303033[(uint8_t)(ii >> 8)]; \
+ ii >>= 16; \
+ y ^= camellia_sp22000222[(uint8_t)ii]; \
+ y ^= camellia_sp10011110[(uint8_t)(ii >> 8)]; \
+ y = ror64(y, 32); \
+})
+
+#define SET_SUBKEY_LR(INDEX, sRL) (subkey[(INDEX)] = ror64((sRL), 32))
+
+static void camellia_setup_tail(u64 *subkey, u64 *subRL, int max)
+{
+ u64 kw4, tt;
+ u32 dw, tl, tr;
+
+ /* absorb kw2 to other subkeys */
+ /* round 2 */
+ subRL[3] ^= subRL[1];
+ /* round 4 */
+ subRL[5] ^= subRL[1];
+ /* round 6 */
+ subRL[7] ^= subRL[1];
+
+ subRL[1] ^= (subRL[1] & ~subRL[9]) << 32;
+ /* modified for FLinv(kl2) */
+ dw = (subRL[1] & subRL[9]) >> 32;
+ subRL[1] ^= rol32(dw, 1);
+
+ /* round 8 */
+ subRL[11] ^= subRL[1];
+ /* round 10 */
+ subRL[13] ^= subRL[1];
+ /* round 12 */
+ subRL[15] ^= subRL[1];
+
+ subRL[1] ^= (subRL[1] & ~subRL[17]) << 32;
+ /* modified for FLinv(kl4) */
+ dw = (subRL[1] & subRL[17]) >> 32;
+ subRL[1] ^= rol32(dw, 1);
+
+ /* round 14 */
+ subRL[19] ^= subRL[1];
+ /* round 16 */
+ subRL[21] ^= subRL[1];
+ /* round 18 */
+ subRL[23] ^= subRL[1];
+
+ if (max == 24) {
+ /* kw3 */
+ subRL[24] ^= subRL[1];
+
+ /* absorb kw4 to other subkeys */
+ kw4 = subRL[25];
+ } else {
+ subRL[1] ^= (subRL[1] & ~subRL[25]) << 32;
+ /* modified for FLinv(kl6) */
+ dw = (subRL[1] & subRL[25]) >> 32;
+ subRL[1] ^= rol32(dw, 1);
+
+ /* round 20 */
+ subRL[27] ^= subRL[1];
+ /* round 22 */
+ subRL[29] ^= subRL[1];
+ /* round 24 */
+ subRL[31] ^= subRL[1];
+ /* kw3 */
+ subRL[32] ^= subRL[1];
+
+ /* absorb kw4 to other subkeys */
+ kw4 = subRL[33];
+ /* round 23 */
+ subRL[30] ^= kw4;
+ /* round 21 */
+ subRL[28] ^= kw4;
+ /* round 19 */
+ subRL[26] ^= kw4;
+
+ kw4 ^= (kw4 & ~subRL[24]) << 32;
+ /* modified for FL(kl5) */
+ dw = (kw4 & subRL[24]) >> 32;
+ kw4 ^= rol32(dw, 1);
+ }
+
+ /* round 17 */
+ subRL[22] ^= kw4;
+ /* round 15 */
+ subRL[20] ^= kw4;
+ /* round 13 */
+ subRL[18] ^= kw4;
+
+ kw4 ^= (kw4 & ~subRL[16]) << 32;
+ /* modified for FL(kl3) */
+ dw = (kw4 & subRL[16]) >> 32;
+ kw4 ^= rol32(dw, 1);
+
+ /* round 11 */
+ subRL[14] ^= kw4;
+ /* round 9 */
+ subRL[12] ^= kw4;
+ /* round 7 */
+ subRL[10] ^= kw4;
+
+ kw4 ^= (kw4 & ~subRL[8]) << 32;
+ /* modified for FL(kl1) */
+ dw = (kw4 & subRL[8]) >> 32;
+ kw4 ^= rol32(dw, 1);
+
+ /* round 5 */
+ subRL[6] ^= kw4;
+ /* round 3 */
+ subRL[4] ^= kw4;
+ /* round 1 */
+ subRL[2] ^= kw4;
+ /* kw1 */
+ subRL[0] ^= kw4;
+
+ /* key XOR is end of F-function */
+ SET_SUBKEY_LR(0, subRL[0] ^ subRL[2]); /* kw1 */
+ SET_SUBKEY_LR(2, subRL[3]); /* round 1 */
+ SET_SUBKEY_LR(3, subRL[2] ^ subRL[4]); /* round 2 */
+ SET_SUBKEY_LR(4, subRL[3] ^ subRL[5]); /* round 3 */
+ SET_SUBKEY_LR(5, subRL[4] ^ subRL[6]); /* round 4 */
+ SET_SUBKEY_LR(6, subRL[5] ^ subRL[7]); /* round 5 */
+
+ tl = (subRL[10] >> 32) ^ (subRL[10] & ~subRL[8]);
+ dw = tl & (subRL[8] >> 32); /* FL(kl1) */
+ tr = subRL[10] ^ rol32(dw, 1);
+ tt = (tr | ((u64)tl << 32));
+
+ SET_SUBKEY_LR(7, subRL[6] ^ tt); /* round 6 */
+ SET_SUBKEY_LR(8, subRL[8]); /* FL(kl1) */
+ SET_SUBKEY_LR(9, subRL[9]); /* FLinv(kl2) */
+
+ tl = (subRL[7] >> 32) ^ (subRL[7] & ~subRL[9]);
+ dw = tl & (subRL[9] >> 32); /* FLinv(kl2) */
+ tr = subRL[7] ^ rol32(dw, 1);
+ tt = (tr | ((u64)tl << 32));
+
+ SET_SUBKEY_LR(10, subRL[11] ^ tt); /* round 7 */
+ SET_SUBKEY_LR(11, subRL[10] ^ subRL[12]); /* round 8 */
+ SET_SUBKEY_LR(12, subRL[11] ^ subRL[13]); /* round 9 */
+ SET_SUBKEY_LR(13, subRL[12] ^ subRL[14]); /* round 10 */
+ SET_SUBKEY_LR(14, subRL[13] ^ subRL[15]); /* round 11 */
+
+ tl = (subRL[18] >> 32) ^ (subRL[18] & ~subRL[16]);
+ dw = tl & (subRL[16] >> 32); /* FL(kl3) */
+ tr = subRL[18] ^ rol32(dw, 1);
+ tt = (tr | ((u64)tl << 32));
+
+ SET_SUBKEY_LR(15, subRL[14] ^ tt); /* round 12 */
+ SET_SUBKEY_LR(16, subRL[16]); /* FL(kl3) */
+ SET_SUBKEY_LR(17, subRL[17]); /* FLinv(kl4) */
+
+ tl = (subRL[15] >> 32) ^ (subRL[15] & ~subRL[17]);
+ dw = tl & (subRL[17] >> 32); /* FLinv(kl4) */
+ tr = subRL[15] ^ rol32(dw, 1);
+ tt = (tr | ((u64)tl << 32));
+
+ SET_SUBKEY_LR(18, subRL[19] ^ tt); /* round 13 */
+ SET_SUBKEY_LR(19, subRL[18] ^ subRL[20]); /* round 14 */
+ SET_SUBKEY_LR(20, subRL[19] ^ subRL[21]); /* round 15 */
+ SET_SUBKEY_LR(21, subRL[20] ^ subRL[22]); /* round 16 */
+ SET_SUBKEY_LR(22, subRL[21] ^ subRL[23]); /* round 17 */
+
+ if (max == 24) {
+ SET_SUBKEY_LR(23, subRL[22]); /* round 18 */
+ SET_SUBKEY_LR(24, subRL[24] ^ subRL[23]); /* kw3 */
+ } else {
+ tl = (subRL[26] >> 32) ^ (subRL[26] & ~subRL[24]);
+ dw = tl & (subRL[24] >> 32); /* FL(kl5) */
+ tr = subRL[26] ^ rol32(dw, 1);
+ tt = (tr | ((u64)tl << 32));
+
+ SET_SUBKEY_LR(23, subRL[22] ^ tt); /* round 18 */
+ SET_SUBKEY_LR(24, subRL[24]); /* FL(kl5) */
+ SET_SUBKEY_LR(25, subRL[25]); /* FLinv(kl6) */
+
+ tl = (subRL[23] >> 32) ^ (subRL[23] & ~subRL[25]);
+ dw = tl & (subRL[25] >> 32); /* FLinv(kl6) */
+ tr = subRL[23] ^ rol32(dw, 1);
+ tt = (tr | ((u64)tl << 32));
+
+ SET_SUBKEY_LR(26, subRL[27] ^ tt); /* round 19 */
+ SET_SUBKEY_LR(27, subRL[26] ^ subRL[28]); /* round 20 */
+ SET_SUBKEY_LR(28, subRL[27] ^ subRL[29]); /* round 21 */
+ SET_SUBKEY_LR(29, subRL[28] ^ subRL[30]); /* round 22 */
+ SET_SUBKEY_LR(30, subRL[29] ^ subRL[31]); /* round 23 */
+ SET_SUBKEY_LR(31, subRL[30]); /* round 24 */
+ SET_SUBKEY_LR(32, subRL[32] ^ subRL[31]); /* kw3 */
+ }
+}
+
+static void camellia_setup128(const unsigned char *key, u64 *subkey)
+{
+ u64 kl, kr, ww;
+ u64 subRL[26];
+
+ /**
+ * k == kl || kr (|| is concatenation)
+ */
+ kl = get_unaligned_be64(key);
+ kr = get_unaligned_be64(key + 8);
+
+ /* generate KL dependent subkeys */
+ /* kw1 */
+ subRL[0] = kl;
+ /* kw2 */
+ subRL[1] = kr;
+
+ /* rotation left shift 15bit */
+ ROLDQ(kl, kr, 15);
+
+ /* k3 */
+ subRL[4] = kl;
+ /* k4 */
+ subRL[5] = kr;
+
+ /* rotation left shift 15+30bit */
+ ROLDQ(kl, kr, 30);
+
+ /* k7 */
+ subRL[10] = kl;
+ /* k8 */
+ subRL[11] = kr;
+
+ /* rotation left shift 15+30+15bit */
+ ROLDQ(kl, kr, 15);
+
+ /* k10 */
+ subRL[13] = kr;
+ /* rotation left shift 15+30+15+17 bit */
+ ROLDQ(kl, kr, 17);
+
+ /* kl3 */
+ subRL[16] = kl;
+ /* kl4 */
+ subRL[17] = kr;
+
+ /* rotation left shift 15+30+15+17+17 bit */
+ ROLDQ(kl, kr, 17);
+
+ /* k13 */
+ subRL[18] = kl;
+ /* k14 */
+ subRL[19] = kr;
+
+ /* rotation left shift 15+30+15+17+17+17 bit */
+ ROLDQ(kl, kr, 17);
+
+ /* k17 */
+ subRL[22] = kl;
+ /* k18 */
+ subRL[23] = kr;
+
+ /* generate KA */
+ kl = subRL[0];
+ kr = subRL[1];
+ CAMELLIA_F(kl, CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R, ww);
+ kr ^= ww;
+ CAMELLIA_F(kr, CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R, kl);
+
+ /* current status == (kll, klr, w0, w1) */
+ CAMELLIA_F(kl, CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R, kr);
+ kr ^= ww;
+ CAMELLIA_F(kr, CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R, ww);
+ kl ^= ww;
+
+ /* generate KA dependent subkeys */
+ /* k1, k2 */
+ subRL[2] = kl;
+ subRL[3] = kr;
+ ROLDQ(kl, kr, 15);
+ /* k5,k6 */
+ subRL[6] = kl;
+ subRL[7] = kr;
+ ROLDQ(kl, kr, 15);
+ /* kl1, kl2 */
+ subRL[8] = kl;
+ subRL[9] = kr;
+ ROLDQ(kl, kr, 15);
+ /* k9 */
+ subRL[12] = kl;
+ ROLDQ(kl, kr, 15);
+ /* k11, k12 */
+ subRL[14] = kl;
+ subRL[15] = kr;
+ ROLDQ(kl, kr, 34);
+ /* k15, k16 */
+ subRL[20] = kl;
+ subRL[21] = kr;
+ ROLDQ(kl, kr, 17);
+ /* kw3, kw4 */
+ subRL[24] = kl;
+ subRL[25] = kr;
+
+ camellia_setup_tail(subkey, subRL, 24);
+}
+
+static void camellia_setup256(const unsigned char *key, u64 *subkey)
+{
+ u64 kl, kr; /* left half of key */
+ u64 krl, krr; /* right half of key */
+ u64 ww; /* temporary variables */
+ u64 subRL[34];
+
+ /**
+ * key = (kl || kr || krl || krr) (|| is concatenation)
+ */
+ kl = get_unaligned_be64(key);
+ kr = get_unaligned_be64(key + 8);
+ krl = get_unaligned_be64(key + 16);
+ krr = get_unaligned_be64(key + 24);
+
+ /* generate KL dependent subkeys */
+ /* kw1 */
+ subRL[0] = kl;
+ /* kw2 */
+ subRL[1] = kr;
+ ROLDQ(kl, kr, 45);
+ /* k9 */
+ subRL[12] = kl;
+ /* k10 */
+ subRL[13] = kr;
+ ROLDQ(kl, kr, 15);
+ /* kl3 */
+ subRL[16] = kl;
+ /* kl4 */
+ subRL[17] = kr;
+ ROLDQ(kl, kr, 17);
+ /* k17 */
+ subRL[22] = kl;
+ /* k18 */
+ subRL[23] = kr;
+ ROLDQ(kl, kr, 34);
+ /* k23 */
+ subRL[30] = kl;
+ /* k24 */
+ subRL[31] = kr;
+
+ /* generate KR dependent subkeys */
+ ROLDQ(krl, krr, 15);
+ /* k3 */
+ subRL[4] = krl;
+ /* k4 */
+ subRL[5] = krr;
+ ROLDQ(krl, krr, 15);
+ /* kl1 */
+ subRL[8] = krl;
+ /* kl2 */
+ subRL[9] = krr;
+ ROLDQ(krl, krr, 30);
+ /* k13 */
+ subRL[18] = krl;
+ /* k14 */
+ subRL[19] = krr;
+ ROLDQ(krl, krr, 34);
+ /* k19 */
+ subRL[26] = krl;
+ /* k20 */
+ subRL[27] = krr;
+ ROLDQ(krl, krr, 34);
+
+ /* generate KA */
+ kl = subRL[0] ^ krl;
+ kr = subRL[1] ^ krr;
+
+ CAMELLIA_F(kl, CAMELLIA_SIGMA1L, CAMELLIA_SIGMA1R, ww);
+ kr ^= ww;
+ CAMELLIA_F(kr, CAMELLIA_SIGMA2L, CAMELLIA_SIGMA2R, kl);
+ kl ^= krl;
+ CAMELLIA_F(kl, CAMELLIA_SIGMA3L, CAMELLIA_SIGMA3R, kr);
+ kr ^= ww ^ krr;
+ CAMELLIA_F(kr, CAMELLIA_SIGMA4L, CAMELLIA_SIGMA4R, ww);
+ kl ^= ww;
+
+ /* generate KB */
+ krl ^= kl;
+ krr ^= kr;
+ CAMELLIA_F(krl, CAMELLIA_SIGMA5L, CAMELLIA_SIGMA5R, ww);
+ krr ^= ww;
+ CAMELLIA_F(krr, CAMELLIA_SIGMA6L, CAMELLIA_SIGMA6R, ww);
+ krl ^= ww;
+
+ /* generate KA dependent subkeys */
+ ROLDQ(kl, kr, 15);
+ /* k5 */
+ subRL[6] = kl;
+ /* k6 */
+ subRL[7] = kr;
+ ROLDQ(kl, kr, 30);
+ /* k11 */
+ subRL[14] = kl;
+ /* k12 */
+ subRL[15] = kr;
+ /* rotation left shift 32bit */
+ ROLDQ(kl, kr, 32);
+ /* kl5 */
+ subRL[24] = kl;
+ /* kl6 */
+ subRL[25] = kr;
+ /* rotation left shift 17 from k11,k12 -> k21,k22 */
+ ROLDQ(kl, kr, 17);
+ /* k21 */
+ subRL[28] = kl;
+ /* k22 */
+ subRL[29] = kr;
+
+ /* generate KB dependent subkeys */
+ /* k1 */
+ subRL[2] = krl;
+ /* k2 */
+ subRL[3] = krr;
+ ROLDQ(krl, krr, 30);
+ /* k7 */
+ subRL[10] = krl;
+ /* k8 */
+ subRL[11] = krr;
+ ROLDQ(krl, krr, 30);
+ /* k15 */
+ subRL[20] = krl;
+ /* k16 */
+ subRL[21] = krr;
+ ROLDQ(krl, krr, 51);
+ /* kw3 */
+ subRL[32] = krl;
+ /* kw4 */
+ subRL[33] = krr;
+
+ camellia_setup_tail(subkey, subRL, 32);
+}
+
+static void camellia_setup192(const unsigned char *key, u64 *subkey)
+{
+ unsigned char kk[32];
+ u64 krl, krr;
+
+ memcpy(kk, key, 24);
+ memcpy((unsigned char *)&krl, key+16, 8);
+ krr = ~krl;
+ memcpy(kk+24, (unsigned char *)&krr, 8);
+ camellia_setup256(kk, subkey);
+}
+
+int __camellia_setkey(struct camellia_ctx *cctx, const unsigned char *key,
+ unsigned int key_len)
+{
+ if (key_len != 16 && key_len != 24 && key_len != 32)
+ return -EINVAL;
+
+ cctx->key_length = key_len;
+
+ switch (key_len) {
+ case 16:
+ camellia_setup128(key, cctx->key_table);
+ break;
+ case 24:
+ camellia_setup192(key, cctx->key_table);
+ break;
+ case 32:
+ camellia_setup256(key, cctx->key_table);
+ break;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(__camellia_setkey);
+
+static int camellia_setkey(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int key_len)
+{
+ return __camellia_setkey(crypto_tfm_ctx(tfm), key, key_len);
+}
+
+static int camellia_setkey_skcipher(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int key_len)
+{
+ return camellia_setkey(&tfm->base, key, key_len);
+}
+
+void camellia_decrypt_cbc_2way(const void *ctx, u8 *dst, const u8 *src)
+{
+ u8 buf[CAMELLIA_BLOCK_SIZE];
+ const u8 *iv = src;
+
+ if (dst == src)
+ iv = memcpy(buf, iv, sizeof(buf));
+ camellia_dec_blk_2way(ctx, dst, src);
+ crypto_xor(dst + CAMELLIA_BLOCK_SIZE, iv, CAMELLIA_BLOCK_SIZE);
+}
+EXPORT_SYMBOL_GPL(camellia_decrypt_cbc_2way);
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, -1);
+ ECB_BLOCK(2, camellia_enc_blk_2way);
+ ECB_BLOCK(1, camellia_enc_blk);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, CAMELLIA_BLOCK_SIZE, -1);
+ ECB_BLOCK(2, camellia_dec_blk_2way);
+ ECB_BLOCK(1, camellia_dec_blk);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, CAMELLIA_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(camellia_enc_blk);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, CAMELLIA_BLOCK_SIZE, -1);
+ CBC_DEC_BLOCK(2, camellia_decrypt_cbc_2way);
+ CBC_DEC_BLOCK(1, camellia_dec_blk);
+ CBC_WALK_END();
+}
+
+static struct crypto_alg camellia_cipher_alg = {
+ .cra_name = "camellia",
+ .cra_driver_name = "camellia-asm",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct camellia_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_u = {
+ .cipher = {
+ .cia_min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .cia_max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .cia_setkey = camellia_setkey,
+ .cia_encrypt = camellia_encrypt,
+ .cia_decrypt = camellia_decrypt
+ }
+ }
+};
+
+static struct skcipher_alg camellia_skcipher_algs[] = {
+ {
+ .base.cra_name = "ecb(camellia)",
+ .base.cra_driver_name = "ecb-camellia-asm",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct camellia_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .setkey = camellia_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "cbc(camellia)",
+ .base.cra_driver_name = "cbc-camellia-asm",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = CAMELLIA_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct camellia_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAMELLIA_MIN_KEY_SIZE,
+ .max_keysize = CAMELLIA_MAX_KEY_SIZE,
+ .ivsize = CAMELLIA_BLOCK_SIZE,
+ .setkey = camellia_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ }
+};
+
+static bool is_blacklisted_cpu(void)
+{
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
+ return false;
+
+ if (boot_cpu_data.x86 == 0x0f) {
+ /*
+ * On Pentium 4, camellia-asm is slower than original assembler
+ * implementation because excessive uses of 64bit rotate and
+ * left-shifts (which are really slow on P4) needed to store and
+ * handle 128bit block in two 64bit registers.
+ */
+ return true;
+ }
+
+ return false;
+}
+
+static int force;
+module_param(force, int, 0);
+MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist");
+
+static int __init camellia_init(void)
+{
+ int err;
+
+ if (!force && is_blacklisted_cpu()) {
+ printk(KERN_INFO
+ "camellia-x86_64: performance on this CPU "
+ "would be suboptimal: disabling "
+ "camellia-x86_64.\n");
+ return -ENODEV;
+ }
+
+ err = crypto_register_alg(&camellia_cipher_alg);
+ if (err)
+ return err;
+
+ err = crypto_register_skciphers(camellia_skcipher_algs,
+ ARRAY_SIZE(camellia_skcipher_algs));
+ if (err)
+ crypto_unregister_alg(&camellia_cipher_alg);
+
+ return err;
+}
+
+static void __exit camellia_fini(void)
+{
+ crypto_unregister_alg(&camellia_cipher_alg);
+ crypto_unregister_skciphers(camellia_skcipher_algs,
+ ARRAY_SIZE(camellia_skcipher_algs));
+}
+
+module_init(camellia_init);
+module_exit(camellia_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Camellia Cipher Algorithm, asm optimized");
+MODULE_ALIAS_CRYPTO("camellia");
+MODULE_ALIAS_CRYPTO("camellia-asm");
diff --git a/arch/x86/crypto/cast5-avx-x86_64-asm_64.S b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
new file mode 100644
index 000000000000..b4e460a87f18
--- /dev/null
+++ b/arch/x86/crypto/cast5-avx-x86_64-asm_64.S
@@ -0,0 +1,565 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Cast5 Cipher 16-way parallel algorithm (AVX/x86_64)
+ *
+ * Copyright (C) 2012 Johannes Goetzfried
+ * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
+ *
+ * Copyright Ā© 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+
+.file "cast5-avx-x86_64-asm_64.S"
+
+.extern cast_s1
+.extern cast_s2
+.extern cast_s3
+.extern cast_s4
+
+/* structure of crypto context */
+#define km 0
+#define kr (16*4)
+#define rr ((16*4)+16)
+
+/* s-boxes */
+#define s1 cast_s1
+#define s2 cast_s2
+#define s3 cast_s3
+#define s4 cast_s4
+
+/**********************************************************************
+ 16-way AVX cast5
+ **********************************************************************/
+#define CTX %r15
+
+#define RL1 %xmm0
+#define RR1 %xmm1
+#define RL2 %xmm2
+#define RR2 %xmm3
+#define RL3 %xmm4
+#define RR3 %xmm5
+#define RL4 %xmm6
+#define RR4 %xmm7
+
+#define RX %xmm8
+
+#define RKM %xmm9
+#define RKR %xmm10
+#define RKRF %xmm11
+#define RKRR %xmm12
+
+#define R32 %xmm13
+#define R1ST %xmm14
+
+#define RTMP %xmm15
+
+#define RID1 %rdi
+#define RID1d %edi
+#define RID2 %rsi
+#define RID2d %esi
+
+#define RGI1 %rdx
+#define RGI1bl %dl
+#define RGI1bh %dh
+#define RGI2 %rcx
+#define RGI2bl %cl
+#define RGI2bh %ch
+
+#define RGI3 %rax
+#define RGI3bl %al
+#define RGI3bh %ah
+#define RGI4 %rbx
+#define RGI4bl %bl
+#define RGI4bh %bh
+
+#define RFS1 %r8
+#define RFS1d %r8d
+#define RFS2 %r9
+#define RFS2d %r9d
+#define RFS3 %r10
+#define RFS3d %r10d
+
+
+#define lookup_32bit(src, dst, op1, op2, op3, interleave_op, il_reg) \
+ movzbl src ## bh, RID1d; \
+ leaq s1(%rip), RID2; \
+ movl (RID2,RID1,4), dst ## d; \
+ movzbl src ## bl, RID2d; \
+ leaq s2(%rip), RID1; \
+ op1 (RID1,RID2,4), dst ## d; \
+ shrq $16, src; \
+ movzbl src ## bh, RID1d; \
+ leaq s3(%rip), RID2; \
+ op2 (RID2,RID1,4), dst ## d; \
+ movzbl src ## bl, RID2d; \
+ interleave_op(il_reg); \
+ leaq s4(%rip), RID1; \
+ op3 (RID1,RID2,4), dst ## d;
+
+#define dummy(d) /* do nothing */
+
+#define shr_next(reg) \
+ shrq $16, reg;
+
+#define F_head(a, x, gi1, gi2, op0) \
+ op0 a, RKM, x; \
+ vpslld RKRF, x, RTMP; \
+ vpsrld RKRR, x, x; \
+ vpor RTMP, x, x; \
+ \
+ vmovq x, gi1; \
+ vpextrq $1, x, gi2;
+
+#define F_tail(a, x, gi1, gi2, op1, op2, op3) \
+ lookup_32bit(##gi1, RFS1, op1, op2, op3, shr_next, ##gi1); \
+ lookup_32bit(##gi2, RFS3, op1, op2, op3, shr_next, ##gi2); \
+ \
+ lookup_32bit(##gi1, RFS2, op1, op2, op3, dummy, none); \
+ shlq $32, RFS2; \
+ orq RFS1, RFS2; \
+ lookup_32bit(##gi2, RFS1, op1, op2, op3, dummy, none); \
+ shlq $32, RFS1; \
+ orq RFS1, RFS3; \
+ \
+ vmovq RFS2, x; \
+ vpinsrq $1, RFS3, x, x;
+
+#define F_2(a1, b1, a2, b2, op0, op1, op2, op3) \
+ F_head(b1, RX, RGI1, RGI2, op0); \
+ F_head(b2, RX, RGI3, RGI4, op0); \
+ \
+ F_tail(b1, RX, RGI1, RGI2, op1, op2, op3); \
+ F_tail(b2, RTMP, RGI3, RGI4, op1, op2, op3); \
+ \
+ vpxor a1, RX, a1; \
+ vpxor a2, RTMP, a2;
+
+#define F1_2(a1, b1, a2, b2) \
+ F_2(a1, b1, a2, b2, vpaddd, xorl, subl, addl)
+#define F2_2(a1, b1, a2, b2) \
+ F_2(a1, b1, a2, b2, vpxor, subl, addl, xorl)
+#define F3_2(a1, b1, a2, b2) \
+ F_2(a1, b1, a2, b2, vpsubd, addl, xorl, subl)
+
+#define subround(a1, b1, a2, b2, f) \
+ F ## f ## _2(a1, b1, a2, b2);
+
+#define round(l, r, n, f) \
+ vbroadcastss (km+(4*n))(CTX), RKM; \
+ vpand R1ST, RKR, RKRF; \
+ vpsubq RKRF, R32, RKRR; \
+ vpsrldq $1, RKR, RKR; \
+ subround(l ## 1, r ## 1, l ## 2, r ## 2, f); \
+ subround(l ## 3, r ## 3, l ## 4, r ## 4, f);
+
+#define enc_preload_rkr() \
+ vbroadcastss .L16_mask(%rip), RKR; \
+ /* add 16-bit rotation to key rotations (mod 32) */ \
+ vpxor kr(CTX), RKR, RKR;
+
+#define dec_preload_rkr() \
+ vbroadcastss .L16_mask(%rip), RKR; \
+ /* add 16-bit rotation to key rotations (mod 32) */ \
+ vpxor kr(CTX), RKR, RKR; \
+ vpshufb .Lbswap128_mask(%rip), RKR, RKR;
+
+#define transpose_2x4(x0, x1, t0, t1) \
+ vpunpckldq x1, x0, t0; \
+ vpunpckhdq x1, x0, t1; \
+ \
+ vpunpcklqdq t1, t0, x0; \
+ vpunpckhqdq t1, t0, x1;
+
+#define inpack_blocks(x0, x1, t0, t1, rmask) \
+ vpshufb rmask, x0, x0; \
+ vpshufb rmask, x1, x1; \
+ \
+ transpose_2x4(x0, x1, t0, t1)
+
+#define outunpack_blocks(x0, x1, t0, t1, rmask) \
+ transpose_2x4(x0, x1, t0, t1) \
+ \
+ vpshufb rmask, x0, x0; \
+ vpshufb rmask, x1, x1;
+
+.section .rodata.cst16.bswap_mask, "aM", @progbits, 16
+.align 16
+.Lbswap_mask:
+ .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
+.section .rodata.cst16.bswap128_mask, "aM", @progbits, 16
+.align 16
+.Lbswap128_mask:
+ .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+.section .rodata.cst16.bswap_iv_mask, "aM", @progbits, 16
+.align 16
+.Lbswap_iv_mask:
+ .byte 7, 6, 5, 4, 3, 2, 1, 0, 7, 6, 5, 4, 3, 2, 1, 0
+
+.section .rodata.cst4.16_mask, "aM", @progbits, 4
+.align 4
+.L16_mask:
+ .byte 16, 16, 16, 16
+.section .rodata.cst4.32_mask, "aM", @progbits, 4
+.align 4
+.L32_mask:
+ .byte 32, 0, 0, 0
+.section .rodata.cst4.first_mask, "aM", @progbits, 4
+.align 4
+.Lfirst_mask:
+ .byte 0x1f, 0, 0, 0
+
+.text
+
+SYM_FUNC_START_LOCAL(__cast5_enc_blk16)
+ /* input:
+ * %rdi: ctx
+ * RL1: blocks 1 and 2
+ * RR1: blocks 3 and 4
+ * RL2: blocks 5 and 6
+ * RR2: blocks 7 and 8
+ * RL3: blocks 9 and 10
+ * RR3: blocks 11 and 12
+ * RL4: blocks 13 and 14
+ * RR4: blocks 15 and 16
+ * output:
+ * RL1: encrypted blocks 1 and 2
+ * RR1: encrypted blocks 3 and 4
+ * RL2: encrypted blocks 5 and 6
+ * RR2: encrypted blocks 7 and 8
+ * RL3: encrypted blocks 9 and 10
+ * RR3: encrypted blocks 11 and 12
+ * RL4: encrypted blocks 13 and 14
+ * RR4: encrypted blocks 15 and 16
+ */
+
+ pushq %r15;
+ pushq %rbx;
+
+ movq %rdi, CTX;
+
+ vmovdqa .Lbswap_mask(%rip), RKM;
+ vmovd .Lfirst_mask(%rip), R1ST;
+ vmovd .L32_mask(%rip), R32;
+ enc_preload_rkr();
+
+ inpack_blocks(RL1, RR1, RTMP, RX, RKM);
+ inpack_blocks(RL2, RR2, RTMP, RX, RKM);
+ inpack_blocks(RL3, RR3, RTMP, RX, RKM);
+ inpack_blocks(RL4, RR4, RTMP, RX, RKM);
+
+ round(RL, RR, 0, 1);
+ round(RR, RL, 1, 2);
+ round(RL, RR, 2, 3);
+ round(RR, RL, 3, 1);
+ round(RL, RR, 4, 2);
+ round(RR, RL, 5, 3);
+ round(RL, RR, 6, 1);
+ round(RR, RL, 7, 2);
+ round(RL, RR, 8, 3);
+ round(RR, RL, 9, 1);
+ round(RL, RR, 10, 2);
+ round(RR, RL, 11, 3);
+
+ movzbl rr(CTX), %eax;
+ testl %eax, %eax;
+ jnz .L__skip_enc;
+
+ round(RL, RR, 12, 1);
+ round(RR, RL, 13, 2);
+ round(RL, RR, 14, 3);
+ round(RR, RL, 15, 1);
+
+.L__skip_enc:
+ popq %rbx;
+ popq %r15;
+
+ vmovdqa .Lbswap_mask(%rip), RKM;
+
+ outunpack_blocks(RR1, RL1, RTMP, RX, RKM);
+ outunpack_blocks(RR2, RL2, RTMP, RX, RKM);
+ outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
+ outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
+
+ RET;
+SYM_FUNC_END(__cast5_enc_blk16)
+
+SYM_FUNC_START_LOCAL(__cast5_dec_blk16)
+ /* input:
+ * %rdi: ctx
+ * RL1: encrypted blocks 1 and 2
+ * RR1: encrypted blocks 3 and 4
+ * RL2: encrypted blocks 5 and 6
+ * RR2: encrypted blocks 7 and 8
+ * RL3: encrypted blocks 9 and 10
+ * RR3: encrypted blocks 11 and 12
+ * RL4: encrypted blocks 13 and 14
+ * RR4: encrypted blocks 15 and 16
+ * output:
+ * RL1: decrypted blocks 1 and 2
+ * RR1: decrypted blocks 3 and 4
+ * RL2: decrypted blocks 5 and 6
+ * RR2: decrypted blocks 7 and 8
+ * RL3: decrypted blocks 9 and 10
+ * RR3: decrypted blocks 11 and 12
+ * RL4: decrypted blocks 13 and 14
+ * RR4: decrypted blocks 15 and 16
+ */
+
+ pushq %r15;
+ pushq %rbx;
+
+ movq %rdi, CTX;
+
+ vmovdqa .Lbswap_mask(%rip), RKM;
+ vmovd .Lfirst_mask(%rip), R1ST;
+ vmovd .L32_mask(%rip), R32;
+ dec_preload_rkr();
+
+ inpack_blocks(RL1, RR1, RTMP, RX, RKM);
+ inpack_blocks(RL2, RR2, RTMP, RX, RKM);
+ inpack_blocks(RL3, RR3, RTMP, RX, RKM);
+ inpack_blocks(RL4, RR4, RTMP, RX, RKM);
+
+ movzbl rr(CTX), %eax;
+ testl %eax, %eax;
+ jnz .L__skip_dec;
+
+ round(RL, RR, 15, 1);
+ round(RR, RL, 14, 3);
+ round(RL, RR, 13, 2);
+ round(RR, RL, 12, 1);
+
+.L__dec_tail:
+ round(RL, RR, 11, 3);
+ round(RR, RL, 10, 2);
+ round(RL, RR, 9, 1);
+ round(RR, RL, 8, 3);
+ round(RL, RR, 7, 2);
+ round(RR, RL, 6, 1);
+ round(RL, RR, 5, 3);
+ round(RR, RL, 4, 2);
+ round(RL, RR, 3, 1);
+ round(RR, RL, 2, 3);
+ round(RL, RR, 1, 2);
+ round(RR, RL, 0, 1);
+
+ vmovdqa .Lbswap_mask(%rip), RKM;
+ popq %rbx;
+ popq %r15;
+
+ outunpack_blocks(RR1, RL1, RTMP, RX, RKM);
+ outunpack_blocks(RR2, RL2, RTMP, RX, RKM);
+ outunpack_blocks(RR3, RL3, RTMP, RX, RKM);
+ outunpack_blocks(RR4, RL4, RTMP, RX, RKM);
+
+ RET;
+
+.L__skip_dec:
+ vpsrldq $4, RKR, RKR;
+ jmp .L__dec_tail;
+SYM_FUNC_END(__cast5_dec_blk16)
+
+SYM_FUNC_START(cast5_ecb_enc_16way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+ pushq %r15;
+
+ movq %rdi, CTX;
+ movq %rsi, %r11;
+
+ vmovdqu (0*4*4)(%rdx), RL1;
+ vmovdqu (1*4*4)(%rdx), RR1;
+ vmovdqu (2*4*4)(%rdx), RL2;
+ vmovdqu (3*4*4)(%rdx), RR2;
+ vmovdqu (4*4*4)(%rdx), RL3;
+ vmovdqu (5*4*4)(%rdx), RR3;
+ vmovdqu (6*4*4)(%rdx), RL4;
+ vmovdqu (7*4*4)(%rdx), RR4;
+
+ call __cast5_enc_blk16;
+
+ vmovdqu RR1, (0*4*4)(%r11);
+ vmovdqu RL1, (1*4*4)(%r11);
+ vmovdqu RR2, (2*4*4)(%r11);
+ vmovdqu RL2, (3*4*4)(%r11);
+ vmovdqu RR3, (4*4*4)(%r11);
+ vmovdqu RL3, (5*4*4)(%r11);
+ vmovdqu RR4, (6*4*4)(%r11);
+ vmovdqu RL4, (7*4*4)(%r11);
+
+ popq %r15;
+ FRAME_END
+ RET;
+SYM_FUNC_END(cast5_ecb_enc_16way)
+
+SYM_FUNC_START(cast5_ecb_dec_16way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ FRAME_BEGIN
+ pushq %r15;
+
+ movq %rdi, CTX;
+ movq %rsi, %r11;
+
+ vmovdqu (0*4*4)(%rdx), RL1;
+ vmovdqu (1*4*4)(%rdx), RR1;
+ vmovdqu (2*4*4)(%rdx), RL2;
+ vmovdqu (3*4*4)(%rdx), RR2;
+ vmovdqu (4*4*4)(%rdx), RL3;
+ vmovdqu (5*4*4)(%rdx), RR3;
+ vmovdqu (6*4*4)(%rdx), RL4;
+ vmovdqu (7*4*4)(%rdx), RR4;
+
+ call __cast5_dec_blk16;
+
+ vmovdqu RR1, (0*4*4)(%r11);
+ vmovdqu RL1, (1*4*4)(%r11);
+ vmovdqu RR2, (2*4*4)(%r11);
+ vmovdqu RL2, (3*4*4)(%r11);
+ vmovdqu RR3, (4*4*4)(%r11);
+ vmovdqu RL3, (5*4*4)(%r11);
+ vmovdqu RR4, (6*4*4)(%r11);
+ vmovdqu RL4, (7*4*4)(%r11);
+
+ popq %r15;
+ FRAME_END
+ RET;
+SYM_FUNC_END(cast5_ecb_dec_16way)
+
+SYM_FUNC_START(cast5_cbc_dec_16way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+ pushq %r12;
+ pushq %r15;
+
+ movq %rdi, CTX;
+ movq %rsi, %r11;
+ movq %rdx, %r12;
+
+ vmovdqu (0*16)(%rdx), RL1;
+ vmovdqu (1*16)(%rdx), RR1;
+ vmovdqu (2*16)(%rdx), RL2;
+ vmovdqu (3*16)(%rdx), RR2;
+ vmovdqu (4*16)(%rdx), RL3;
+ vmovdqu (5*16)(%rdx), RR3;
+ vmovdqu (6*16)(%rdx), RL4;
+ vmovdqu (7*16)(%rdx), RR4;
+
+ call __cast5_dec_blk16;
+
+ /* xor with src */
+ vmovq (%r12), RX;
+ vpshufd $0x4f, RX, RX;
+ vpxor RX, RR1, RR1;
+ vpxor 0*16+8(%r12), RL1, RL1;
+ vpxor 1*16+8(%r12), RR2, RR2;
+ vpxor 2*16+8(%r12), RL2, RL2;
+ vpxor 3*16+8(%r12), RR3, RR3;
+ vpxor 4*16+8(%r12), RL3, RL3;
+ vpxor 5*16+8(%r12), RR4, RR4;
+ vpxor 6*16+8(%r12), RL4, RL4;
+
+ vmovdqu RR1, (0*16)(%r11);
+ vmovdqu RL1, (1*16)(%r11);
+ vmovdqu RR2, (2*16)(%r11);
+ vmovdqu RL2, (3*16)(%r11);
+ vmovdqu RR3, (4*16)(%r11);
+ vmovdqu RL3, (5*16)(%r11);
+ vmovdqu RR4, (6*16)(%r11);
+ vmovdqu RL4, (7*16)(%r11);
+
+ popq %r15;
+ popq %r12;
+ FRAME_END
+ RET;
+SYM_FUNC_END(cast5_cbc_dec_16way)
+
+SYM_FUNC_START(cast5_ctr_16way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: iv (big endian, 64bit)
+ */
+ FRAME_BEGIN
+ pushq %r12;
+ pushq %r15;
+
+ movq %rdi, CTX;
+ movq %rsi, %r11;
+ movq %rdx, %r12;
+
+ vpcmpeqd RTMP, RTMP, RTMP;
+ vpsrldq $8, RTMP, RTMP; /* low: -1, high: 0 */
+
+ vpcmpeqd RKR, RKR, RKR;
+ vpaddq RKR, RKR, RKR; /* low: -2, high: -2 */
+ vmovdqa .Lbswap_iv_mask(%rip), R1ST;
+ vmovdqa .Lbswap128_mask(%rip), RKM;
+
+ /* load IV and byteswap */
+ vmovq (%rcx), RX;
+ vpshufb R1ST, RX, RX;
+
+ /* construct IVs */
+ vpsubq RTMP, RX, RX; /* le: IV1, IV0 */
+ vpshufb RKM, RX, RL1; /* be: IV0, IV1 */
+ vpsubq RKR, RX, RX;
+ vpshufb RKM, RX, RR1; /* be: IV2, IV3 */
+ vpsubq RKR, RX, RX;
+ vpshufb RKM, RX, RL2; /* be: IV4, IV5 */
+ vpsubq RKR, RX, RX;
+ vpshufb RKM, RX, RR2; /* be: IV6, IV7 */
+ vpsubq RKR, RX, RX;
+ vpshufb RKM, RX, RL3; /* be: IV8, IV9 */
+ vpsubq RKR, RX, RX;
+ vpshufb RKM, RX, RR3; /* be: IV10, IV11 */
+ vpsubq RKR, RX, RX;
+ vpshufb RKM, RX, RL4; /* be: IV12, IV13 */
+ vpsubq RKR, RX, RX;
+ vpshufb RKM, RX, RR4; /* be: IV14, IV15 */
+
+ /* store last IV */
+ vpsubq RTMP, RX, RX; /* le: IV16, IV14 */
+ vpshufb R1ST, RX, RX; /* be: IV16, IV16 */
+ vmovq RX, (%rcx);
+
+ call __cast5_enc_blk16;
+
+ /* dst = src ^ iv */
+ vpxor (0*16)(%r12), RR1, RR1;
+ vpxor (1*16)(%r12), RL1, RL1;
+ vpxor (2*16)(%r12), RR2, RR2;
+ vpxor (3*16)(%r12), RL2, RL2;
+ vpxor (4*16)(%r12), RR3, RR3;
+ vpxor (5*16)(%r12), RL3, RL3;
+ vpxor (6*16)(%r12), RR4, RR4;
+ vpxor (7*16)(%r12), RL4, RL4;
+ vmovdqu RR1, (0*16)(%r11);
+ vmovdqu RL1, (1*16)(%r11);
+ vmovdqu RR2, (2*16)(%r11);
+ vmovdqu RL2, (3*16)(%r11);
+ vmovdqu RR3, (4*16)(%r11);
+ vmovdqu RL3, (5*16)(%r11);
+ vmovdqu RR4, (6*16)(%r11);
+ vmovdqu RL4, (7*16)(%r11);
+
+ popq %r15;
+ popq %r12;
+ FRAME_END
+ RET;
+SYM_FUNC_END(cast5_ctr_16way)
diff --git a/arch/x86/crypto/cast5_avx_glue.c b/arch/x86/crypto/cast5_avx_glue.c
new file mode 100644
index 000000000000..3976a87f92ad
--- /dev/null
+++ b/arch/x86/crypto/cast5_avx_glue.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for the AVX assembler implementation of the Cast5 Cipher
+ *
+ * Copyright (C) 2012 Johannes Goetzfried
+ * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/cast5.h>
+#include <crypto/internal/simd.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include "ecb_cbc_helpers.h"
+
+#define CAST5_PARALLEL_BLOCKS 16
+
+asmlinkage void cast5_ecb_enc_16way(struct cast5_ctx *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void cast5_ecb_dec_16way(struct cast5_ctx *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void cast5_cbc_dec_16way(struct cast5_ctx *ctx, u8 *dst,
+ const u8 *src);
+
+static int cast5_setkey_skcipher(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ return cast5_setkey(&tfm->base, key, keylen);
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, CAST5_BLOCK_SIZE, CAST5_PARALLEL_BLOCKS);
+ ECB_BLOCK(CAST5_PARALLEL_BLOCKS, cast5_ecb_enc_16way);
+ ECB_BLOCK(1, __cast5_encrypt);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, CAST5_BLOCK_SIZE, CAST5_PARALLEL_BLOCKS);
+ ECB_BLOCK(CAST5_PARALLEL_BLOCKS, cast5_ecb_dec_16way);
+ ECB_BLOCK(1, __cast5_decrypt);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, CAST5_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(__cast5_encrypt);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, CAST5_BLOCK_SIZE, CAST5_PARALLEL_BLOCKS);
+ CBC_DEC_BLOCK(CAST5_PARALLEL_BLOCKS, cast5_cbc_dec_16way);
+ CBC_DEC_BLOCK(1, __cast5_decrypt);
+ CBC_WALK_END();
+}
+
+static struct skcipher_alg cast5_algs[] = {
+ {
+ .base.cra_name = "__ecb(cast5)",
+ .base.cra_driver_name = "__ecb-cast5-avx",
+ .base.cra_priority = 200,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = CAST5_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct cast5_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAST5_MIN_KEY_SIZE,
+ .max_keysize = CAST5_MAX_KEY_SIZE,
+ .setkey = cast5_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "__cbc(cast5)",
+ .base.cra_driver_name = "__cbc-cast5-avx",
+ .base.cra_priority = 200,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = CAST5_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct cast5_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAST5_MIN_KEY_SIZE,
+ .max_keysize = CAST5_MAX_KEY_SIZE,
+ .ivsize = CAST5_BLOCK_SIZE,
+ .setkey = cast5_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ }
+};
+
+static struct simd_skcipher_alg *cast5_simd_algs[ARRAY_SIZE(cast5_algs)];
+
+static int __init cast5_init(void)
+{
+ const char *feature_name;
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ return simd_register_skciphers_compat(cast5_algs,
+ ARRAY_SIZE(cast5_algs),
+ cast5_simd_algs);
+}
+
+static void __exit cast5_exit(void)
+{
+ simd_unregister_skciphers(cast5_algs, ARRAY_SIZE(cast5_algs),
+ cast5_simd_algs);
+}
+
+module_init(cast5_init);
+module_exit(cast5_exit);
+
+MODULE_DESCRIPTION("Cast5 Cipher Algorithm, AVX optimized");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_CRYPTO("cast5");
diff --git a/arch/x86/crypto/cast6-avx-x86_64-asm_64.S b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
new file mode 100644
index 000000000000..9e86d460b409
--- /dev/null
+++ b/arch/x86/crypto/cast6-avx-x86_64-asm_64.S
@@ -0,0 +1,416 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Cast6 Cipher 8-way parallel algorithm (AVX/x86_64)
+ *
+ * Copyright (C) 2012 Johannes Goetzfried
+ * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
+ *
+ * Copyright Ā© 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+#include "glue_helper-asm-avx.S"
+
+.file "cast6-avx-x86_64-asm_64.S"
+
+.extern cast_s1
+.extern cast_s2
+.extern cast_s3
+.extern cast_s4
+
+/* structure of crypto context */
+#define km 0
+#define kr (12*4*4)
+
+/* s-boxes */
+#define s1 cast_s1
+#define s2 cast_s2
+#define s3 cast_s3
+#define s4 cast_s4
+
+/**********************************************************************
+ 8-way AVX cast6
+ **********************************************************************/
+#define CTX %r15
+
+#define RA1 %xmm0
+#define RB1 %xmm1
+#define RC1 %xmm2
+#define RD1 %xmm3
+
+#define RA2 %xmm4
+#define RB2 %xmm5
+#define RC2 %xmm6
+#define RD2 %xmm7
+
+#define RX %xmm8
+
+#define RKM %xmm9
+#define RKR %xmm10
+#define RKRF %xmm11
+#define RKRR %xmm12
+#define R32 %xmm13
+#define R1ST %xmm14
+
+#define RTMP %xmm15
+
+#define RID1 %rdi
+#define RID1d %edi
+#define RID2 %rsi
+#define RID2d %esi
+
+#define RGI1 %rdx
+#define RGI1bl %dl
+#define RGI1bh %dh
+#define RGI2 %rcx
+#define RGI2bl %cl
+#define RGI2bh %ch
+
+#define RGI3 %rax
+#define RGI3bl %al
+#define RGI3bh %ah
+#define RGI4 %rbx
+#define RGI4bl %bl
+#define RGI4bh %bh
+
+#define RFS1 %r8
+#define RFS1d %r8d
+#define RFS2 %r9
+#define RFS2d %r9d
+#define RFS3 %r10
+#define RFS3d %r10d
+
+
+#define lookup_32bit(src, dst, op1, op2, op3, interleave_op, il_reg) \
+ movzbl src ## bh, RID1d; \
+ leaq s1(%rip), RID2; \
+ movl (RID2,RID1,4), dst ## d; \
+ movzbl src ## bl, RID2d; \
+ leaq s2(%rip), RID1; \
+ op1 (RID1,RID2,4), dst ## d; \
+ shrq $16, src; \
+ movzbl src ## bh, RID1d; \
+ leaq s3(%rip), RID2; \
+ op2 (RID2,RID1,4), dst ## d; \
+ movzbl src ## bl, RID2d; \
+ interleave_op(il_reg); \
+ leaq s4(%rip), RID1; \
+ op3 (RID1,RID2,4), dst ## d;
+
+#define dummy(d) /* do nothing */
+
+#define shr_next(reg) \
+ shrq $16, reg;
+
+#define F_head(a, x, gi1, gi2, op0) \
+ op0 a, RKM, x; \
+ vpslld RKRF, x, RTMP; \
+ vpsrld RKRR, x, x; \
+ vpor RTMP, x, x; \
+ \
+ vmovq x, gi1; \
+ vpextrq $1, x, gi2;
+
+#define F_tail(a, x, gi1, gi2, op1, op2, op3) \
+ lookup_32bit(##gi1, RFS1, op1, op2, op3, shr_next, ##gi1); \
+ lookup_32bit(##gi2, RFS3, op1, op2, op3, shr_next, ##gi2); \
+ \
+ lookup_32bit(##gi1, RFS2, op1, op2, op3, dummy, none); \
+ shlq $32, RFS2; \
+ orq RFS1, RFS2; \
+ lookup_32bit(##gi2, RFS1, op1, op2, op3, dummy, none); \
+ shlq $32, RFS1; \
+ orq RFS1, RFS3; \
+ \
+ vmovq RFS2, x; \
+ vpinsrq $1, RFS3, x, x;
+
+#define F_2(a1, b1, a2, b2, op0, op1, op2, op3) \
+ F_head(b1, RX, RGI1, RGI2, op0); \
+ F_head(b2, RX, RGI3, RGI4, op0); \
+ \
+ F_tail(b1, RX, RGI1, RGI2, op1, op2, op3); \
+ F_tail(b2, RTMP, RGI3, RGI4, op1, op2, op3); \
+ \
+ vpxor a1, RX, a1; \
+ vpxor a2, RTMP, a2;
+
+#define F1_2(a1, b1, a2, b2) \
+ F_2(a1, b1, a2, b2, vpaddd, xorl, subl, addl)
+#define F2_2(a1, b1, a2, b2) \
+ F_2(a1, b1, a2, b2, vpxor, subl, addl, xorl)
+#define F3_2(a1, b1, a2, b2) \
+ F_2(a1, b1, a2, b2, vpsubd, addl, xorl, subl)
+
+#define qop(in, out, f) \
+ F ## f ## _2(out ## 1, in ## 1, out ## 2, in ## 2);
+
+#define get_round_keys(nn) \
+ vbroadcastss (km+(4*(nn)))(CTX), RKM; \
+ vpand R1ST, RKR, RKRF; \
+ vpsubq RKRF, R32, RKRR; \
+ vpsrldq $1, RKR, RKR;
+
+#define Q(n) \
+ get_round_keys(4*n+0); \
+ qop(RD, RC, 1); \
+ \
+ get_round_keys(4*n+1); \
+ qop(RC, RB, 2); \
+ \
+ get_round_keys(4*n+2); \
+ qop(RB, RA, 3); \
+ \
+ get_round_keys(4*n+3); \
+ qop(RA, RD, 1);
+
+#define QBAR(n) \
+ get_round_keys(4*n+3); \
+ qop(RA, RD, 1); \
+ \
+ get_round_keys(4*n+2); \
+ qop(RB, RA, 3); \
+ \
+ get_round_keys(4*n+1); \
+ qop(RC, RB, 2); \
+ \
+ get_round_keys(4*n+0); \
+ qop(RD, RC, 1);
+
+#define shuffle(mask) \
+ vpshufb mask(%rip), RKR, RKR;
+
+#define preload_rkr(n, do_mask, mask) \
+ vbroadcastss .L16_mask(%rip), RKR; \
+ /* add 16-bit rotation to key rotations (mod 32) */ \
+ vpxor (kr+n*16)(CTX), RKR, RKR; \
+ do_mask(mask);
+
+#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ vpunpckldq x1, x0, t0; \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x3; \
+ \
+ vpunpcklqdq t1, t0, x0; \
+ vpunpckhqdq t1, t0, x1; \
+ vpunpcklqdq x3, t2, x2; \
+ vpunpckhqdq x3, t2, x3;
+
+#define inpack_blocks(x0, x1, x2, x3, t0, t1, t2, rmask) \
+ vpshufb rmask, x0, x0; \
+ vpshufb rmask, x1, x1; \
+ vpshufb rmask, x2, x2; \
+ vpshufb rmask, x3, x3; \
+ \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
+
+#define outunpack_blocks(x0, x1, x2, x3, t0, t1, t2, rmask) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ \
+ vpshufb rmask, x0, x0; \
+ vpshufb rmask, x1, x1; \
+ vpshufb rmask, x2, x2; \
+ vpshufb rmask, x3, x3;
+
+.section .rodata.cst16, "aM", @progbits, 16
+.align 16
+.Lbswap_mask:
+ .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
+.Lbswap128_mask:
+ .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+.Lrkr_enc_Q_Q_QBAR_QBAR:
+ .byte 0, 1, 2, 3, 4, 5, 6, 7, 11, 10, 9, 8, 15, 14, 13, 12
+.Lrkr_enc_QBAR_QBAR_QBAR_QBAR:
+ .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
+.Lrkr_dec_Q_Q_Q_Q:
+ .byte 12, 13, 14, 15, 8, 9, 10, 11, 4, 5, 6, 7, 0, 1, 2, 3
+.Lrkr_dec_Q_Q_QBAR_QBAR:
+ .byte 12, 13, 14, 15, 8, 9, 10, 11, 7, 6, 5, 4, 3, 2, 1, 0
+.Lrkr_dec_QBAR_QBAR_QBAR_QBAR:
+ .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+
+.section .rodata.cst4.L16_mask, "aM", @progbits, 4
+.align 4
+.L16_mask:
+ .byte 16, 16, 16, 16
+
+.section .rodata.cst4.L32_mask, "aM", @progbits, 4
+.align 4
+.L32_mask:
+ .byte 32, 0, 0, 0
+
+.section .rodata.cst4.first_mask, "aM", @progbits, 4
+.align 4
+.Lfirst_mask:
+ .byte 0x1f, 0, 0, 0
+
+.text
+
+.align 8
+SYM_FUNC_START_LOCAL(__cast6_enc_blk8)
+ /* input:
+ * %rdi: ctx
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
+ * output:
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
+ */
+
+ pushq %r15;
+ pushq %rbx;
+
+ movq %rdi, CTX;
+
+ vmovdqa .Lbswap_mask(%rip), RKM;
+ vmovd .Lfirst_mask(%rip), R1ST;
+ vmovd .L32_mask(%rip), R32;
+
+ inpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
+ inpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
+
+ preload_rkr(0, dummy, none);
+ Q(0);
+ Q(1);
+ Q(2);
+ Q(3);
+ preload_rkr(1, shuffle, .Lrkr_enc_Q_Q_QBAR_QBAR);
+ Q(4);
+ Q(5);
+ QBAR(6);
+ QBAR(7);
+ preload_rkr(2, shuffle, .Lrkr_enc_QBAR_QBAR_QBAR_QBAR);
+ QBAR(8);
+ QBAR(9);
+ QBAR(10);
+ QBAR(11);
+
+ popq %rbx;
+ popq %r15;
+
+ vmovdqa .Lbswap_mask(%rip), RKM;
+
+ outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
+ outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
+
+ RET;
+SYM_FUNC_END(__cast6_enc_blk8)
+
+.align 8
+SYM_FUNC_START_LOCAL(__cast6_dec_blk8)
+ /* input:
+ * %rdi: ctx
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
+ * output:
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: decrypted blocks
+ */
+
+ pushq %r15;
+ pushq %rbx;
+
+ movq %rdi, CTX;
+
+ vmovdqa .Lbswap_mask(%rip), RKM;
+ vmovd .Lfirst_mask(%rip), R1ST;
+ vmovd .L32_mask(%rip), R32;
+
+ inpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
+ inpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
+
+ preload_rkr(2, shuffle, .Lrkr_dec_Q_Q_Q_Q);
+ Q(11);
+ Q(10);
+ Q(9);
+ Q(8);
+ preload_rkr(1, shuffle, .Lrkr_dec_Q_Q_QBAR_QBAR);
+ Q(7);
+ Q(6);
+ QBAR(5);
+ QBAR(4);
+ preload_rkr(0, shuffle, .Lrkr_dec_QBAR_QBAR_QBAR_QBAR);
+ QBAR(3);
+ QBAR(2);
+ QBAR(1);
+ QBAR(0);
+
+ popq %rbx;
+ popq %r15;
+
+ vmovdqa .Lbswap_mask(%rip), RKM;
+ outunpack_blocks(RA1, RB1, RC1, RD1, RTMP, RX, RKRF, RKM);
+ outunpack_blocks(RA2, RB2, RC2, RD2, RTMP, RX, RKRF, RKM);
+
+ RET;
+SYM_FUNC_END(__cast6_dec_blk8)
+
+SYM_FUNC_START(cast6_ecb_enc_8way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+ pushq %r15;
+
+ movq %rdi, CTX;
+ movq %rsi, %r11;
+
+ load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __cast6_enc_blk8;
+
+ store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ popq %r15;
+ FRAME_END
+ RET;
+SYM_FUNC_END(cast6_ecb_enc_8way)
+
+SYM_FUNC_START(cast6_ecb_dec_8way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+ pushq %r15;
+
+ movq %rdi, CTX;
+ movq %rsi, %r11;
+
+ load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __cast6_dec_blk8;
+
+ store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ popq %r15;
+ FRAME_END
+ RET;
+SYM_FUNC_END(cast6_ecb_dec_8way)
+
+SYM_FUNC_START(cast6_cbc_dec_8way)
+ /* input:
+ * %rdi: ctx
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+ pushq %r12;
+ pushq %r15;
+
+ movq %rdi, CTX;
+ movq %rsi, %r11;
+ movq %rdx, %r12;
+
+ load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __cast6_dec_blk8;
+
+ store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ popq %r15;
+ popq %r12;
+ FRAME_END
+ RET;
+SYM_FUNC_END(cast6_cbc_dec_8way)
diff --git a/arch/x86/crypto/cast6_avx_glue.c b/arch/x86/crypto/cast6_avx_glue.c
new file mode 100644
index 000000000000..7e2aea372349
--- /dev/null
+++ b/arch/x86/crypto/cast6_avx_glue.c
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for the AVX assembler implementation of the Cast6 Cipher
+ *
+ * Copyright (C) 2012 Johannes Goetzfried
+ * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
+ *
+ * Copyright Ā© 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <crypto/algapi.h>
+#include <crypto/cast6.h>
+#include <crypto/internal/simd.h>
+
+#include "ecb_cbc_helpers.h"
+
+#define CAST6_PARALLEL_BLOCKS 8
+
+asmlinkage void cast6_ecb_enc_8way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void cast6_ecb_dec_8way(const void *ctx, u8 *dst, const u8 *src);
+
+asmlinkage void cast6_cbc_dec_8way(const void *ctx, u8 *dst, const u8 *src);
+
+static int cast6_setkey_skcipher(struct crypto_skcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return cast6_setkey(&tfm->base, key, keylen);
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, CAST6_BLOCK_SIZE, CAST6_PARALLEL_BLOCKS);
+ ECB_BLOCK(CAST6_PARALLEL_BLOCKS, cast6_ecb_enc_8way);
+ ECB_BLOCK(1, __cast6_encrypt);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, CAST6_BLOCK_SIZE, CAST6_PARALLEL_BLOCKS);
+ ECB_BLOCK(CAST6_PARALLEL_BLOCKS, cast6_ecb_dec_8way);
+ ECB_BLOCK(1, __cast6_decrypt);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, CAST6_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(__cast6_encrypt);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, CAST6_BLOCK_SIZE, CAST6_PARALLEL_BLOCKS);
+ CBC_DEC_BLOCK(CAST6_PARALLEL_BLOCKS, cast6_cbc_dec_8way);
+ CBC_DEC_BLOCK(1, __cast6_decrypt);
+ CBC_WALK_END();
+}
+
+static struct skcipher_alg cast6_algs[] = {
+ {
+ .base.cra_name = "__ecb(cast6)",
+ .base.cra_driver_name = "__ecb-cast6-avx",
+ .base.cra_priority = 200,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = CAST6_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct cast6_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAST6_MIN_KEY_SIZE,
+ .max_keysize = CAST6_MAX_KEY_SIZE,
+ .setkey = cast6_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "__cbc(cast6)",
+ .base.cra_driver_name = "__cbc-cast6-avx",
+ .base.cra_priority = 200,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = CAST6_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct cast6_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = CAST6_MIN_KEY_SIZE,
+ .max_keysize = CAST6_MAX_KEY_SIZE,
+ .ivsize = CAST6_BLOCK_SIZE,
+ .setkey = cast6_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ },
+};
+
+static struct simd_skcipher_alg *cast6_simd_algs[ARRAY_SIZE(cast6_algs)];
+
+static int __init cast6_init(void)
+{
+ const char *feature_name;
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ return simd_register_skciphers_compat(cast6_algs,
+ ARRAY_SIZE(cast6_algs),
+ cast6_simd_algs);
+}
+
+static void __exit cast6_exit(void)
+{
+ simd_unregister_skciphers(cast6_algs, ARRAY_SIZE(cast6_algs),
+ cast6_simd_algs);
+}
+
+module_init(cast6_init);
+module_exit(cast6_exit);
+
+MODULE_DESCRIPTION("Cast6 Cipher Algorithm, AVX optimized");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_CRYPTO("cast6");
diff --git a/arch/x86/crypto/chacha-avx2-x86_64.S b/arch/x86/crypto/chacha-avx2-x86_64.S
new file mode 100644
index 000000000000..f3d8fc018249
--- /dev/null
+++ b/arch/x86/crypto/chacha-avx2-x86_64.S
@@ -0,0 +1,1021 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * ChaCha 256-bit cipher algorithm, x64 AVX2 functions
+ *
+ * Copyright (C) 2015 Martin Willi
+ */
+
+#include <linux/linkage.h>
+
+.section .rodata.cst32.ROT8, "aM", @progbits, 32
+.align 32
+ROT8: .octa 0x0e0d0c0f0a09080b0605040702010003
+ .octa 0x0e0d0c0f0a09080b0605040702010003
+
+.section .rodata.cst32.ROT16, "aM", @progbits, 32
+.align 32
+ROT16: .octa 0x0d0c0f0e09080b0a0504070601000302
+ .octa 0x0d0c0f0e09080b0a0504070601000302
+
+.section .rodata.cst32.CTRINC, "aM", @progbits, 32
+.align 32
+CTRINC: .octa 0x00000003000000020000000100000000
+ .octa 0x00000007000000060000000500000004
+
+.section .rodata.cst32.CTR2BL, "aM", @progbits, 32
+.align 32
+CTR2BL: .octa 0x00000000000000000000000000000000
+ .octa 0x00000000000000000000000000000001
+
+.section .rodata.cst32.CTR4BL, "aM", @progbits, 32
+.align 32
+CTR4BL: .octa 0x00000000000000000000000000000002
+ .octa 0x00000000000000000000000000000003
+
+.text
+
+SYM_FUNC_START(chacha_2block_xor_avx2)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 2 data blocks output, o
+ # %rdx: up to 2 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts two ChaCha blocks by loading the state
+ # matrix twice across four AVX registers. It performs matrix operations
+ # on four words in each matrix in parallel, but requires shuffling to
+ # rearrange the words after each round.
+
+ vzeroupper
+
+ # x0..3[0-2] = s0..3
+ vbroadcasti128 0x00(%rdi),%ymm0
+ vbroadcasti128 0x10(%rdi),%ymm1
+ vbroadcasti128 0x20(%rdi),%ymm2
+ vbroadcasti128 0x30(%rdi),%ymm3
+
+ vpaddd CTR2BL(%rip),%ymm3,%ymm3
+
+ vmovdqa %ymm0,%ymm8
+ vmovdqa %ymm1,%ymm9
+ vmovdqa %ymm2,%ymm10
+ vmovdqa %ymm3,%ymm11
+
+ vmovdqa ROT8(%rip),%ymm4
+ vmovdqa ROT16(%rip),%ymm5
+
+ mov %rcx,%rax
+
+.Ldoubleround:
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm5,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm6
+ vpslld $12,%ymm6,%ymm6
+ vpsrld $20,%ymm1,%ymm1
+ vpor %ymm6,%ymm1,%ymm1
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm4,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm7
+ vpslld $7,%ymm7,%ymm7
+ vpsrld $25,%ymm1,%ymm1
+ vpor %ymm7,%ymm1,%ymm1
+
+ # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm1,%ymm1
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm3,%ymm3
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm5,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm6
+ vpslld $12,%ymm6,%ymm6
+ vpsrld $20,%ymm1,%ymm1
+ vpor %ymm6,%ymm1,%ymm1
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm4,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm7
+ vpslld $7,%ymm7,%ymm7
+ vpsrld $25,%ymm1,%ymm1
+ vpor %ymm7,%ymm1,%ymm1
+
+ # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm1,%ymm1
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm3,%ymm3
+
+ sub $2,%r8d
+ jnz .Ldoubleround
+
+ # o0 = i0 ^ (x0 + s0)
+ vpaddd %ymm8,%ymm0,%ymm7
+ cmp $0x10,%rax
+ jl .Lxorpart2
+ vpxor 0x00(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x00(%rsi)
+ vextracti128 $1,%ymm7,%xmm0
+ # o1 = i1 ^ (x1 + s1)
+ vpaddd %ymm9,%ymm1,%ymm7
+ cmp $0x20,%rax
+ jl .Lxorpart2
+ vpxor 0x10(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x10(%rsi)
+ vextracti128 $1,%ymm7,%xmm1
+ # o2 = i2 ^ (x2 + s2)
+ vpaddd %ymm10,%ymm2,%ymm7
+ cmp $0x30,%rax
+ jl .Lxorpart2
+ vpxor 0x20(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x20(%rsi)
+ vextracti128 $1,%ymm7,%xmm2
+ # o3 = i3 ^ (x3 + s3)
+ vpaddd %ymm11,%ymm3,%ymm7
+ cmp $0x40,%rax
+ jl .Lxorpart2
+ vpxor 0x30(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x30(%rsi)
+ vextracti128 $1,%ymm7,%xmm3
+
+ # xor and write second block
+ vmovdqa %xmm0,%xmm7
+ cmp $0x50,%rax
+ jl .Lxorpart2
+ vpxor 0x40(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x40(%rsi)
+
+ vmovdqa %xmm1,%xmm7
+ cmp $0x60,%rax
+ jl .Lxorpart2
+ vpxor 0x50(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x50(%rsi)
+
+ vmovdqa %xmm2,%xmm7
+ cmp $0x70,%rax
+ jl .Lxorpart2
+ vpxor 0x60(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x60(%rsi)
+
+ vmovdqa %xmm3,%xmm7
+ cmp $0x80,%rax
+ jl .Lxorpart2
+ vpxor 0x70(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x70(%rsi)
+
+.Ldone2:
+ vzeroupper
+ RET
+
+.Lxorpart2:
+ # xor remaining bytes from partial register into output
+ mov %rax,%r9
+ and $0x0f,%r9
+ jz .Ldone2
+ and $~0x0f,%rax
+
+ mov %rsi,%r11
+
+ lea 8(%rsp),%r10
+ sub $0x10,%rsp
+ and $~31,%rsp
+
+ lea (%rdx,%rax),%rsi
+ mov %rsp,%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ vpxor 0x00(%rsp),%xmm7,%xmm7
+ vmovdqa %xmm7,0x00(%rsp)
+
+ mov %rsp,%rsi
+ lea (%r11,%rax),%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ lea -8(%r10),%rsp
+ jmp .Ldone2
+
+SYM_FUNC_END(chacha_2block_xor_avx2)
+
+SYM_FUNC_START(chacha_4block_xor_avx2)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 4 data blocks output, o
+ # %rdx: up to 4 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts four ChaCha blocks by loading the state
+ # matrix four times across eight AVX registers. It performs matrix
+ # operations on four words in two matrices in parallel, sequentially
+ # to the operations on the four words of the other two matrices. The
+ # required word shuffling has a rather high latency, we can do the
+ # arithmetic on two matrix-pairs without much slowdown.
+
+ vzeroupper
+
+ # x0..3[0-4] = s0..3
+ vbroadcasti128 0x00(%rdi),%ymm0
+ vbroadcasti128 0x10(%rdi),%ymm1
+ vbroadcasti128 0x20(%rdi),%ymm2
+ vbroadcasti128 0x30(%rdi),%ymm3
+
+ vmovdqa %ymm0,%ymm4
+ vmovdqa %ymm1,%ymm5
+ vmovdqa %ymm2,%ymm6
+ vmovdqa %ymm3,%ymm7
+
+ vpaddd CTR2BL(%rip),%ymm3,%ymm3
+ vpaddd CTR4BL(%rip),%ymm7,%ymm7
+
+ vmovdqa %ymm0,%ymm11
+ vmovdqa %ymm1,%ymm12
+ vmovdqa %ymm2,%ymm13
+ vmovdqa %ymm3,%ymm14
+ vmovdqa %ymm7,%ymm15
+
+ vmovdqa ROT8(%rip),%ymm8
+ vmovdqa ROT16(%rip),%ymm9
+
+ mov %rcx,%rax
+
+.Ldoubleround4:
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm9,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxor %ymm4,%ymm7,%ymm7
+ vpshufb %ymm9,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm10
+ vpslld $12,%ymm10,%ymm10
+ vpsrld $20,%ymm1,%ymm1
+ vpor %ymm10,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxor %ymm6,%ymm5,%ymm5
+ vmovdqa %ymm5,%ymm10
+ vpslld $12,%ymm10,%ymm10
+ vpsrld $20,%ymm5,%ymm5
+ vpor %ymm10,%ymm5,%ymm5
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm8,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxor %ymm4,%ymm7,%ymm7
+ vpshufb %ymm8,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm10
+ vpslld $7,%ymm10,%ymm10
+ vpsrld $25,%ymm1,%ymm1
+ vpor %ymm10,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxor %ymm6,%ymm5,%ymm5
+ vmovdqa %ymm5,%ymm10
+ vpslld $7,%ymm10,%ymm10
+ vpsrld $25,%ymm5,%ymm5
+ vpor %ymm10,%ymm5,%ymm5
+
+ # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm1,%ymm1
+ vpshufd $0x39,%ymm5,%ymm5
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ vpshufd $0x4e,%ymm6,%ymm6
+ # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm3,%ymm3
+ vpshufd $0x93,%ymm7,%ymm7
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm9,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxor %ymm4,%ymm7,%ymm7
+ vpshufb %ymm9,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm10
+ vpslld $12,%ymm10,%ymm10
+ vpsrld $20,%ymm1,%ymm1
+ vpor %ymm10,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxor %ymm6,%ymm5,%ymm5
+ vmovdqa %ymm5,%ymm10
+ vpslld $12,%ymm10,%ymm10
+ vpsrld $20,%ymm5,%ymm5
+ vpor %ymm10,%ymm5,%ymm5
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxor %ymm0,%ymm3,%ymm3
+ vpshufb %ymm8,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxor %ymm4,%ymm7,%ymm7
+ vpshufb %ymm8,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxor %ymm2,%ymm1,%ymm1
+ vmovdqa %ymm1,%ymm10
+ vpslld $7,%ymm10,%ymm10
+ vpsrld $25,%ymm1,%ymm1
+ vpor %ymm10,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxor %ymm6,%ymm5,%ymm5
+ vmovdqa %ymm5,%ymm10
+ vpslld $7,%ymm10,%ymm10
+ vpsrld $25,%ymm5,%ymm5
+ vpor %ymm10,%ymm5,%ymm5
+
+ # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm1,%ymm1
+ vpshufd $0x93,%ymm5,%ymm5
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ vpshufd $0x4e,%ymm6,%ymm6
+ # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm3,%ymm3
+ vpshufd $0x39,%ymm7,%ymm7
+
+ sub $2,%r8d
+ jnz .Ldoubleround4
+
+ # o0 = i0 ^ (x0 + s0), first block
+ vpaddd %ymm11,%ymm0,%ymm10
+ cmp $0x10,%rax
+ jl .Lxorpart4
+ vpxor 0x00(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x00(%rsi)
+ vextracti128 $1,%ymm10,%xmm0
+ # o1 = i1 ^ (x1 + s1), first block
+ vpaddd %ymm12,%ymm1,%ymm10
+ cmp $0x20,%rax
+ jl .Lxorpart4
+ vpxor 0x10(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x10(%rsi)
+ vextracti128 $1,%ymm10,%xmm1
+ # o2 = i2 ^ (x2 + s2), first block
+ vpaddd %ymm13,%ymm2,%ymm10
+ cmp $0x30,%rax
+ jl .Lxorpart4
+ vpxor 0x20(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x20(%rsi)
+ vextracti128 $1,%ymm10,%xmm2
+ # o3 = i3 ^ (x3 + s3), first block
+ vpaddd %ymm14,%ymm3,%ymm10
+ cmp $0x40,%rax
+ jl .Lxorpart4
+ vpxor 0x30(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x30(%rsi)
+ vextracti128 $1,%ymm10,%xmm3
+
+ # xor and write second block
+ vmovdqa %xmm0,%xmm10
+ cmp $0x50,%rax
+ jl .Lxorpart4
+ vpxor 0x40(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x40(%rsi)
+
+ vmovdqa %xmm1,%xmm10
+ cmp $0x60,%rax
+ jl .Lxorpart4
+ vpxor 0x50(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x50(%rsi)
+
+ vmovdqa %xmm2,%xmm10
+ cmp $0x70,%rax
+ jl .Lxorpart4
+ vpxor 0x60(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x60(%rsi)
+
+ vmovdqa %xmm3,%xmm10
+ cmp $0x80,%rax
+ jl .Lxorpart4
+ vpxor 0x70(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x70(%rsi)
+
+ # o0 = i0 ^ (x0 + s0), third block
+ vpaddd %ymm11,%ymm4,%ymm10
+ cmp $0x90,%rax
+ jl .Lxorpart4
+ vpxor 0x80(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x80(%rsi)
+ vextracti128 $1,%ymm10,%xmm4
+ # o1 = i1 ^ (x1 + s1), third block
+ vpaddd %ymm12,%ymm5,%ymm10
+ cmp $0xa0,%rax
+ jl .Lxorpart4
+ vpxor 0x90(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x90(%rsi)
+ vextracti128 $1,%ymm10,%xmm5
+ # o2 = i2 ^ (x2 + s2), third block
+ vpaddd %ymm13,%ymm6,%ymm10
+ cmp $0xb0,%rax
+ jl .Lxorpart4
+ vpxor 0xa0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xa0(%rsi)
+ vextracti128 $1,%ymm10,%xmm6
+ # o3 = i3 ^ (x3 + s3), third block
+ vpaddd %ymm15,%ymm7,%ymm10
+ cmp $0xc0,%rax
+ jl .Lxorpart4
+ vpxor 0xb0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xb0(%rsi)
+ vextracti128 $1,%ymm10,%xmm7
+
+ # xor and write fourth block
+ vmovdqa %xmm4,%xmm10
+ cmp $0xd0,%rax
+ jl .Lxorpart4
+ vpxor 0xc0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xc0(%rsi)
+
+ vmovdqa %xmm5,%xmm10
+ cmp $0xe0,%rax
+ jl .Lxorpart4
+ vpxor 0xd0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xd0(%rsi)
+
+ vmovdqa %xmm6,%xmm10
+ cmp $0xf0,%rax
+ jl .Lxorpart4
+ vpxor 0xe0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xe0(%rsi)
+
+ vmovdqa %xmm7,%xmm10
+ cmp $0x100,%rax
+ jl .Lxorpart4
+ vpxor 0xf0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xf0(%rsi)
+
+.Ldone4:
+ vzeroupper
+ RET
+
+.Lxorpart4:
+ # xor remaining bytes from partial register into output
+ mov %rax,%r9
+ and $0x0f,%r9
+ jz .Ldone4
+ and $~0x0f,%rax
+
+ mov %rsi,%r11
+
+ lea 8(%rsp),%r10
+ sub $0x10,%rsp
+ and $~31,%rsp
+
+ lea (%rdx,%rax),%rsi
+ mov %rsp,%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ vpxor 0x00(%rsp),%xmm10,%xmm10
+ vmovdqa %xmm10,0x00(%rsp)
+
+ mov %rsp,%rsi
+ lea (%r11,%rax),%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ lea -8(%r10),%rsp
+ jmp .Ldone4
+
+SYM_FUNC_END(chacha_4block_xor_avx2)
+
+SYM_FUNC_START(chacha_8block_xor_avx2)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 8 data blocks output, o
+ # %rdx: up to 8 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts eight consecutive ChaCha blocks by loading
+ # the state matrix in AVX registers eight times. As we need some
+ # scratch registers, we save the first four registers on the stack. The
+ # algorithm performs each operation on the corresponding word of each
+ # state matrix, hence requires no word shuffling. For final XORing step
+ # we transpose the matrix by interleaving 32-, 64- and then 128-bit
+ # words, which allows us to do XOR in AVX registers. 8/16-bit word
+ # rotation is done with the slightly better performing byte shuffling,
+ # 7/12-bit word rotation uses traditional shift+OR.
+
+ vzeroupper
+ # 4 * 32 byte stack, 32-byte aligned
+ lea 8(%rsp),%r10
+ and $~31, %rsp
+ sub $0x80, %rsp
+ mov %rcx,%rax
+
+ # x0..15[0-7] = s[0..15]
+ vpbroadcastd 0x00(%rdi),%ymm0
+ vpbroadcastd 0x04(%rdi),%ymm1
+ vpbroadcastd 0x08(%rdi),%ymm2
+ vpbroadcastd 0x0c(%rdi),%ymm3
+ vpbroadcastd 0x10(%rdi),%ymm4
+ vpbroadcastd 0x14(%rdi),%ymm5
+ vpbroadcastd 0x18(%rdi),%ymm6
+ vpbroadcastd 0x1c(%rdi),%ymm7
+ vpbroadcastd 0x20(%rdi),%ymm8
+ vpbroadcastd 0x24(%rdi),%ymm9
+ vpbroadcastd 0x28(%rdi),%ymm10
+ vpbroadcastd 0x2c(%rdi),%ymm11
+ vpbroadcastd 0x30(%rdi),%ymm12
+ vpbroadcastd 0x34(%rdi),%ymm13
+ vpbroadcastd 0x38(%rdi),%ymm14
+ vpbroadcastd 0x3c(%rdi),%ymm15
+ # x0..3 on stack
+ vmovdqa %ymm0,0x00(%rsp)
+ vmovdqa %ymm1,0x20(%rsp)
+ vmovdqa %ymm2,0x40(%rsp)
+ vmovdqa %ymm3,0x60(%rsp)
+
+ vmovdqa CTRINC(%rip),%ymm1
+ vmovdqa ROT8(%rip),%ymm2
+ vmovdqa ROT16(%rip),%ymm3
+
+ # x12 += counter values 0-3
+ vpaddd %ymm1,%ymm12,%ymm12
+
+.Ldoubleround8:
+ # x0 += x4, x12 = rotl32(x12 ^ x0, 16)
+ vpaddd 0x00(%rsp),%ymm4,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+ vpxor %ymm0,%ymm12,%ymm12
+ vpshufb %ymm3,%ymm12,%ymm12
+ # x1 += x5, x13 = rotl32(x13 ^ x1, 16)
+ vpaddd 0x20(%rsp),%ymm5,%ymm0
+ vmovdqa %ymm0,0x20(%rsp)
+ vpxor %ymm0,%ymm13,%ymm13
+ vpshufb %ymm3,%ymm13,%ymm13
+ # x2 += x6, x14 = rotl32(x14 ^ x2, 16)
+ vpaddd 0x40(%rsp),%ymm6,%ymm0
+ vmovdqa %ymm0,0x40(%rsp)
+ vpxor %ymm0,%ymm14,%ymm14
+ vpshufb %ymm3,%ymm14,%ymm14
+ # x3 += x7, x15 = rotl32(x15 ^ x3, 16)
+ vpaddd 0x60(%rsp),%ymm7,%ymm0
+ vmovdqa %ymm0,0x60(%rsp)
+ vpxor %ymm0,%ymm15,%ymm15
+ vpshufb %ymm3,%ymm15,%ymm15
+
+ # x8 += x12, x4 = rotl32(x4 ^ x8, 12)
+ vpaddd %ymm12,%ymm8,%ymm8
+ vpxor %ymm8,%ymm4,%ymm4
+ vpslld $12,%ymm4,%ymm0
+ vpsrld $20,%ymm4,%ymm4
+ vpor %ymm0,%ymm4,%ymm4
+ # x9 += x13, x5 = rotl32(x5 ^ x9, 12)
+ vpaddd %ymm13,%ymm9,%ymm9
+ vpxor %ymm9,%ymm5,%ymm5
+ vpslld $12,%ymm5,%ymm0
+ vpsrld $20,%ymm5,%ymm5
+ vpor %ymm0,%ymm5,%ymm5
+ # x10 += x14, x6 = rotl32(x6 ^ x10, 12)
+ vpaddd %ymm14,%ymm10,%ymm10
+ vpxor %ymm10,%ymm6,%ymm6
+ vpslld $12,%ymm6,%ymm0
+ vpsrld $20,%ymm6,%ymm6
+ vpor %ymm0,%ymm6,%ymm6
+ # x11 += x15, x7 = rotl32(x7 ^ x11, 12)
+ vpaddd %ymm15,%ymm11,%ymm11
+ vpxor %ymm11,%ymm7,%ymm7
+ vpslld $12,%ymm7,%ymm0
+ vpsrld $20,%ymm7,%ymm7
+ vpor %ymm0,%ymm7,%ymm7
+
+ # x0 += x4, x12 = rotl32(x12 ^ x0, 8)
+ vpaddd 0x00(%rsp),%ymm4,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+ vpxor %ymm0,%ymm12,%ymm12
+ vpshufb %ymm2,%ymm12,%ymm12
+ # x1 += x5, x13 = rotl32(x13 ^ x1, 8)
+ vpaddd 0x20(%rsp),%ymm5,%ymm0
+ vmovdqa %ymm0,0x20(%rsp)
+ vpxor %ymm0,%ymm13,%ymm13
+ vpshufb %ymm2,%ymm13,%ymm13
+ # x2 += x6, x14 = rotl32(x14 ^ x2, 8)
+ vpaddd 0x40(%rsp),%ymm6,%ymm0
+ vmovdqa %ymm0,0x40(%rsp)
+ vpxor %ymm0,%ymm14,%ymm14
+ vpshufb %ymm2,%ymm14,%ymm14
+ # x3 += x7, x15 = rotl32(x15 ^ x3, 8)
+ vpaddd 0x60(%rsp),%ymm7,%ymm0
+ vmovdqa %ymm0,0x60(%rsp)
+ vpxor %ymm0,%ymm15,%ymm15
+ vpshufb %ymm2,%ymm15,%ymm15
+
+ # x8 += x12, x4 = rotl32(x4 ^ x8, 7)
+ vpaddd %ymm12,%ymm8,%ymm8
+ vpxor %ymm8,%ymm4,%ymm4
+ vpslld $7,%ymm4,%ymm0
+ vpsrld $25,%ymm4,%ymm4
+ vpor %ymm0,%ymm4,%ymm4
+ # x9 += x13, x5 = rotl32(x5 ^ x9, 7)
+ vpaddd %ymm13,%ymm9,%ymm9
+ vpxor %ymm9,%ymm5,%ymm5
+ vpslld $7,%ymm5,%ymm0
+ vpsrld $25,%ymm5,%ymm5
+ vpor %ymm0,%ymm5,%ymm5
+ # x10 += x14, x6 = rotl32(x6 ^ x10, 7)
+ vpaddd %ymm14,%ymm10,%ymm10
+ vpxor %ymm10,%ymm6,%ymm6
+ vpslld $7,%ymm6,%ymm0
+ vpsrld $25,%ymm6,%ymm6
+ vpor %ymm0,%ymm6,%ymm6
+ # x11 += x15, x7 = rotl32(x7 ^ x11, 7)
+ vpaddd %ymm15,%ymm11,%ymm11
+ vpxor %ymm11,%ymm7,%ymm7
+ vpslld $7,%ymm7,%ymm0
+ vpsrld $25,%ymm7,%ymm7
+ vpor %ymm0,%ymm7,%ymm7
+
+ # x0 += x5, x15 = rotl32(x15 ^ x0, 16)
+ vpaddd 0x00(%rsp),%ymm5,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+ vpxor %ymm0,%ymm15,%ymm15
+ vpshufb %ymm3,%ymm15,%ymm15
+ # x1 += x6, x12 = rotl32(x12 ^ x1, 16)%ymm0
+ vpaddd 0x20(%rsp),%ymm6,%ymm0
+ vmovdqa %ymm0,0x20(%rsp)
+ vpxor %ymm0,%ymm12,%ymm12
+ vpshufb %ymm3,%ymm12,%ymm12
+ # x2 += x7, x13 = rotl32(x13 ^ x2, 16)
+ vpaddd 0x40(%rsp),%ymm7,%ymm0
+ vmovdqa %ymm0,0x40(%rsp)
+ vpxor %ymm0,%ymm13,%ymm13
+ vpshufb %ymm3,%ymm13,%ymm13
+ # x3 += x4, x14 = rotl32(x14 ^ x3, 16)
+ vpaddd 0x60(%rsp),%ymm4,%ymm0
+ vmovdqa %ymm0,0x60(%rsp)
+ vpxor %ymm0,%ymm14,%ymm14
+ vpshufb %ymm3,%ymm14,%ymm14
+
+ # x10 += x15, x5 = rotl32(x5 ^ x10, 12)
+ vpaddd %ymm15,%ymm10,%ymm10
+ vpxor %ymm10,%ymm5,%ymm5
+ vpslld $12,%ymm5,%ymm0
+ vpsrld $20,%ymm5,%ymm5
+ vpor %ymm0,%ymm5,%ymm5
+ # x11 += x12, x6 = rotl32(x6 ^ x11, 12)
+ vpaddd %ymm12,%ymm11,%ymm11
+ vpxor %ymm11,%ymm6,%ymm6
+ vpslld $12,%ymm6,%ymm0
+ vpsrld $20,%ymm6,%ymm6
+ vpor %ymm0,%ymm6,%ymm6
+ # x8 += x13, x7 = rotl32(x7 ^ x8, 12)
+ vpaddd %ymm13,%ymm8,%ymm8
+ vpxor %ymm8,%ymm7,%ymm7
+ vpslld $12,%ymm7,%ymm0
+ vpsrld $20,%ymm7,%ymm7
+ vpor %ymm0,%ymm7,%ymm7
+ # x9 += x14, x4 = rotl32(x4 ^ x9, 12)
+ vpaddd %ymm14,%ymm9,%ymm9
+ vpxor %ymm9,%ymm4,%ymm4
+ vpslld $12,%ymm4,%ymm0
+ vpsrld $20,%ymm4,%ymm4
+ vpor %ymm0,%ymm4,%ymm4
+
+ # x0 += x5, x15 = rotl32(x15 ^ x0, 8)
+ vpaddd 0x00(%rsp),%ymm5,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+ vpxor %ymm0,%ymm15,%ymm15
+ vpshufb %ymm2,%ymm15,%ymm15
+ # x1 += x6, x12 = rotl32(x12 ^ x1, 8)
+ vpaddd 0x20(%rsp),%ymm6,%ymm0
+ vmovdqa %ymm0,0x20(%rsp)
+ vpxor %ymm0,%ymm12,%ymm12
+ vpshufb %ymm2,%ymm12,%ymm12
+ # x2 += x7, x13 = rotl32(x13 ^ x2, 8)
+ vpaddd 0x40(%rsp),%ymm7,%ymm0
+ vmovdqa %ymm0,0x40(%rsp)
+ vpxor %ymm0,%ymm13,%ymm13
+ vpshufb %ymm2,%ymm13,%ymm13
+ # x3 += x4, x14 = rotl32(x14 ^ x3, 8)
+ vpaddd 0x60(%rsp),%ymm4,%ymm0
+ vmovdqa %ymm0,0x60(%rsp)
+ vpxor %ymm0,%ymm14,%ymm14
+ vpshufb %ymm2,%ymm14,%ymm14
+
+ # x10 += x15, x5 = rotl32(x5 ^ x10, 7)
+ vpaddd %ymm15,%ymm10,%ymm10
+ vpxor %ymm10,%ymm5,%ymm5
+ vpslld $7,%ymm5,%ymm0
+ vpsrld $25,%ymm5,%ymm5
+ vpor %ymm0,%ymm5,%ymm5
+ # x11 += x12, x6 = rotl32(x6 ^ x11, 7)
+ vpaddd %ymm12,%ymm11,%ymm11
+ vpxor %ymm11,%ymm6,%ymm6
+ vpslld $7,%ymm6,%ymm0
+ vpsrld $25,%ymm6,%ymm6
+ vpor %ymm0,%ymm6,%ymm6
+ # x8 += x13, x7 = rotl32(x7 ^ x8, 7)
+ vpaddd %ymm13,%ymm8,%ymm8
+ vpxor %ymm8,%ymm7,%ymm7
+ vpslld $7,%ymm7,%ymm0
+ vpsrld $25,%ymm7,%ymm7
+ vpor %ymm0,%ymm7,%ymm7
+ # x9 += x14, x4 = rotl32(x4 ^ x9, 7)
+ vpaddd %ymm14,%ymm9,%ymm9
+ vpxor %ymm9,%ymm4,%ymm4
+ vpslld $7,%ymm4,%ymm0
+ vpsrld $25,%ymm4,%ymm4
+ vpor %ymm0,%ymm4,%ymm4
+
+ sub $2,%r8d
+ jnz .Ldoubleround8
+
+ # x0..15[0-3] += s[0..15]
+ vpbroadcastd 0x00(%rdi),%ymm0
+ vpaddd 0x00(%rsp),%ymm0,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+ vpbroadcastd 0x04(%rdi),%ymm0
+ vpaddd 0x20(%rsp),%ymm0,%ymm0
+ vmovdqa %ymm0,0x20(%rsp)
+ vpbroadcastd 0x08(%rdi),%ymm0
+ vpaddd 0x40(%rsp),%ymm0,%ymm0
+ vmovdqa %ymm0,0x40(%rsp)
+ vpbroadcastd 0x0c(%rdi),%ymm0
+ vpaddd 0x60(%rsp),%ymm0,%ymm0
+ vmovdqa %ymm0,0x60(%rsp)
+ vpbroadcastd 0x10(%rdi),%ymm0
+ vpaddd %ymm0,%ymm4,%ymm4
+ vpbroadcastd 0x14(%rdi),%ymm0
+ vpaddd %ymm0,%ymm5,%ymm5
+ vpbroadcastd 0x18(%rdi),%ymm0
+ vpaddd %ymm0,%ymm6,%ymm6
+ vpbroadcastd 0x1c(%rdi),%ymm0
+ vpaddd %ymm0,%ymm7,%ymm7
+ vpbroadcastd 0x20(%rdi),%ymm0
+ vpaddd %ymm0,%ymm8,%ymm8
+ vpbroadcastd 0x24(%rdi),%ymm0
+ vpaddd %ymm0,%ymm9,%ymm9
+ vpbroadcastd 0x28(%rdi),%ymm0
+ vpaddd %ymm0,%ymm10,%ymm10
+ vpbroadcastd 0x2c(%rdi),%ymm0
+ vpaddd %ymm0,%ymm11,%ymm11
+ vpbroadcastd 0x30(%rdi),%ymm0
+ vpaddd %ymm0,%ymm12,%ymm12
+ vpbroadcastd 0x34(%rdi),%ymm0
+ vpaddd %ymm0,%ymm13,%ymm13
+ vpbroadcastd 0x38(%rdi),%ymm0
+ vpaddd %ymm0,%ymm14,%ymm14
+ vpbroadcastd 0x3c(%rdi),%ymm0
+ vpaddd %ymm0,%ymm15,%ymm15
+
+ # x12 += counter values 0-3
+ vpaddd %ymm1,%ymm12,%ymm12
+
+ # interleave 32-bit words in state n, n+1
+ vmovdqa 0x00(%rsp),%ymm0
+ vmovdqa 0x20(%rsp),%ymm1
+ vpunpckldq %ymm1,%ymm0,%ymm2
+ vpunpckhdq %ymm1,%ymm0,%ymm1
+ vmovdqa %ymm2,0x00(%rsp)
+ vmovdqa %ymm1,0x20(%rsp)
+ vmovdqa 0x40(%rsp),%ymm0
+ vmovdqa 0x60(%rsp),%ymm1
+ vpunpckldq %ymm1,%ymm0,%ymm2
+ vpunpckhdq %ymm1,%ymm0,%ymm1
+ vmovdqa %ymm2,0x40(%rsp)
+ vmovdqa %ymm1,0x60(%rsp)
+ vmovdqa %ymm4,%ymm0
+ vpunpckldq %ymm5,%ymm0,%ymm4
+ vpunpckhdq %ymm5,%ymm0,%ymm5
+ vmovdqa %ymm6,%ymm0
+ vpunpckldq %ymm7,%ymm0,%ymm6
+ vpunpckhdq %ymm7,%ymm0,%ymm7
+ vmovdqa %ymm8,%ymm0
+ vpunpckldq %ymm9,%ymm0,%ymm8
+ vpunpckhdq %ymm9,%ymm0,%ymm9
+ vmovdqa %ymm10,%ymm0
+ vpunpckldq %ymm11,%ymm0,%ymm10
+ vpunpckhdq %ymm11,%ymm0,%ymm11
+ vmovdqa %ymm12,%ymm0
+ vpunpckldq %ymm13,%ymm0,%ymm12
+ vpunpckhdq %ymm13,%ymm0,%ymm13
+ vmovdqa %ymm14,%ymm0
+ vpunpckldq %ymm15,%ymm0,%ymm14
+ vpunpckhdq %ymm15,%ymm0,%ymm15
+
+ # interleave 64-bit words in state n, n+2
+ vmovdqa 0x00(%rsp),%ymm0
+ vmovdqa 0x40(%rsp),%ymm2
+ vpunpcklqdq %ymm2,%ymm0,%ymm1
+ vpunpckhqdq %ymm2,%ymm0,%ymm2
+ vmovdqa %ymm1,0x00(%rsp)
+ vmovdqa %ymm2,0x40(%rsp)
+ vmovdqa 0x20(%rsp),%ymm0
+ vmovdqa 0x60(%rsp),%ymm2
+ vpunpcklqdq %ymm2,%ymm0,%ymm1
+ vpunpckhqdq %ymm2,%ymm0,%ymm2
+ vmovdqa %ymm1,0x20(%rsp)
+ vmovdqa %ymm2,0x60(%rsp)
+ vmovdqa %ymm4,%ymm0
+ vpunpcklqdq %ymm6,%ymm0,%ymm4
+ vpunpckhqdq %ymm6,%ymm0,%ymm6
+ vmovdqa %ymm5,%ymm0
+ vpunpcklqdq %ymm7,%ymm0,%ymm5
+ vpunpckhqdq %ymm7,%ymm0,%ymm7
+ vmovdqa %ymm8,%ymm0
+ vpunpcklqdq %ymm10,%ymm0,%ymm8
+ vpunpckhqdq %ymm10,%ymm0,%ymm10
+ vmovdqa %ymm9,%ymm0
+ vpunpcklqdq %ymm11,%ymm0,%ymm9
+ vpunpckhqdq %ymm11,%ymm0,%ymm11
+ vmovdqa %ymm12,%ymm0
+ vpunpcklqdq %ymm14,%ymm0,%ymm12
+ vpunpckhqdq %ymm14,%ymm0,%ymm14
+ vmovdqa %ymm13,%ymm0
+ vpunpcklqdq %ymm15,%ymm0,%ymm13
+ vpunpckhqdq %ymm15,%ymm0,%ymm15
+
+ # interleave 128-bit words in state n, n+4
+ # xor/write first four blocks
+ vmovdqa 0x00(%rsp),%ymm1
+ vperm2i128 $0x20,%ymm4,%ymm1,%ymm0
+ cmp $0x0020,%rax
+ jl .Lxorpart8
+ vpxor 0x0000(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0000(%rsi)
+ vperm2i128 $0x31,%ymm4,%ymm1,%ymm4
+
+ vperm2i128 $0x20,%ymm12,%ymm8,%ymm0
+ cmp $0x0040,%rax
+ jl .Lxorpart8
+ vpxor 0x0020(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0020(%rsi)
+ vperm2i128 $0x31,%ymm12,%ymm8,%ymm12
+
+ vmovdqa 0x40(%rsp),%ymm1
+ vperm2i128 $0x20,%ymm6,%ymm1,%ymm0
+ cmp $0x0060,%rax
+ jl .Lxorpart8
+ vpxor 0x0040(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0040(%rsi)
+ vperm2i128 $0x31,%ymm6,%ymm1,%ymm6
+
+ vperm2i128 $0x20,%ymm14,%ymm10,%ymm0
+ cmp $0x0080,%rax
+ jl .Lxorpart8
+ vpxor 0x0060(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0060(%rsi)
+ vperm2i128 $0x31,%ymm14,%ymm10,%ymm14
+
+ vmovdqa 0x20(%rsp),%ymm1
+ vperm2i128 $0x20,%ymm5,%ymm1,%ymm0
+ cmp $0x00a0,%rax
+ jl .Lxorpart8
+ vpxor 0x0080(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0080(%rsi)
+ vperm2i128 $0x31,%ymm5,%ymm1,%ymm5
+
+ vperm2i128 $0x20,%ymm13,%ymm9,%ymm0
+ cmp $0x00c0,%rax
+ jl .Lxorpart8
+ vpxor 0x00a0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x00a0(%rsi)
+ vperm2i128 $0x31,%ymm13,%ymm9,%ymm13
+
+ vmovdqa 0x60(%rsp),%ymm1
+ vperm2i128 $0x20,%ymm7,%ymm1,%ymm0
+ cmp $0x00e0,%rax
+ jl .Lxorpart8
+ vpxor 0x00c0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x00c0(%rsi)
+ vperm2i128 $0x31,%ymm7,%ymm1,%ymm7
+
+ vperm2i128 $0x20,%ymm15,%ymm11,%ymm0
+ cmp $0x0100,%rax
+ jl .Lxorpart8
+ vpxor 0x00e0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x00e0(%rsi)
+ vperm2i128 $0x31,%ymm15,%ymm11,%ymm15
+
+ # xor remaining blocks, write to output
+ vmovdqa %ymm4,%ymm0
+ cmp $0x0120,%rax
+ jl .Lxorpart8
+ vpxor 0x0100(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0100(%rsi)
+
+ vmovdqa %ymm12,%ymm0
+ cmp $0x0140,%rax
+ jl .Lxorpart8
+ vpxor 0x0120(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0120(%rsi)
+
+ vmovdqa %ymm6,%ymm0
+ cmp $0x0160,%rax
+ jl .Lxorpart8
+ vpxor 0x0140(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0140(%rsi)
+
+ vmovdqa %ymm14,%ymm0
+ cmp $0x0180,%rax
+ jl .Lxorpart8
+ vpxor 0x0160(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0160(%rsi)
+
+ vmovdqa %ymm5,%ymm0
+ cmp $0x01a0,%rax
+ jl .Lxorpart8
+ vpxor 0x0180(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x0180(%rsi)
+
+ vmovdqa %ymm13,%ymm0
+ cmp $0x01c0,%rax
+ jl .Lxorpart8
+ vpxor 0x01a0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x01a0(%rsi)
+
+ vmovdqa %ymm7,%ymm0
+ cmp $0x01e0,%rax
+ jl .Lxorpart8
+ vpxor 0x01c0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x01c0(%rsi)
+
+ vmovdqa %ymm15,%ymm0
+ cmp $0x0200,%rax
+ jl .Lxorpart8
+ vpxor 0x01e0(%rdx),%ymm0,%ymm0
+ vmovdqu %ymm0,0x01e0(%rsi)
+
+.Ldone8:
+ vzeroupper
+ lea -8(%r10),%rsp
+ RET
+
+.Lxorpart8:
+ # xor remaining bytes from partial register into output
+ mov %rax,%r9
+ and $0x1f,%r9
+ jz .Ldone8
+ and $~0x1f,%rax
+
+ mov %rsi,%r11
+
+ lea (%rdx,%rax),%rsi
+ mov %rsp,%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ vpxor 0x00(%rsp),%ymm0,%ymm0
+ vmovdqa %ymm0,0x00(%rsp)
+
+ mov %rsp,%rsi
+ lea (%r11,%rax),%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ jmp .Ldone8
+
+SYM_FUNC_END(chacha_8block_xor_avx2)
diff --git a/arch/x86/crypto/chacha-avx512vl-x86_64.S b/arch/x86/crypto/chacha-avx512vl-x86_64.S
new file mode 100644
index 000000000000..259383e1ad44
--- /dev/null
+++ b/arch/x86/crypto/chacha-avx512vl-x86_64.S
@@ -0,0 +1,836 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * ChaCha 256-bit cipher algorithm, x64 AVX-512VL functions
+ *
+ * Copyright (C) 2018 Martin Willi
+ */
+
+#include <linux/linkage.h>
+
+.section .rodata.cst32.CTR2BL, "aM", @progbits, 32
+.align 32
+CTR2BL: .octa 0x00000000000000000000000000000000
+ .octa 0x00000000000000000000000000000001
+
+.section .rodata.cst32.CTR4BL, "aM", @progbits, 32
+.align 32
+CTR4BL: .octa 0x00000000000000000000000000000002
+ .octa 0x00000000000000000000000000000003
+
+.section .rodata.cst32.CTR8BL, "aM", @progbits, 32
+.align 32
+CTR8BL: .octa 0x00000003000000020000000100000000
+ .octa 0x00000007000000060000000500000004
+
+.text
+
+SYM_FUNC_START(chacha_2block_xor_avx512vl)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 2 data blocks output, o
+ # %rdx: up to 2 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts two ChaCha blocks by loading the state
+ # matrix twice across four AVX registers. It performs matrix operations
+ # on four words in each matrix in parallel, but requires shuffling to
+ # rearrange the words after each round.
+
+ vzeroupper
+
+ # x0..3[0-2] = s0..3
+ vbroadcasti128 0x00(%rdi),%ymm0
+ vbroadcasti128 0x10(%rdi),%ymm1
+ vbroadcasti128 0x20(%rdi),%ymm2
+ vbroadcasti128 0x30(%rdi),%ymm3
+
+ vpaddd CTR2BL(%rip),%ymm3,%ymm3
+
+ vmovdqa %ymm0,%ymm8
+ vmovdqa %ymm1,%ymm9
+ vmovdqa %ymm2,%ymm10
+ vmovdqa %ymm3,%ymm11
+
+.Ldoubleround:
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $16,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $12,%ymm1,%ymm1
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $8,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $7,%ymm1,%ymm1
+
+ # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm1,%ymm1
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm3,%ymm3
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $16,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $12,%ymm1,%ymm1
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $8,%ymm3,%ymm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $7,%ymm1,%ymm1
+
+ # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm1,%ymm1
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm3,%ymm3
+
+ sub $2,%r8d
+ jnz .Ldoubleround
+
+ # o0 = i0 ^ (x0 + s0)
+ vpaddd %ymm8,%ymm0,%ymm7
+ cmp $0x10,%rcx
+ jl .Lxorpart2
+ vpxord 0x00(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x00(%rsi)
+ vextracti128 $1,%ymm7,%xmm0
+ # o1 = i1 ^ (x1 + s1)
+ vpaddd %ymm9,%ymm1,%ymm7
+ cmp $0x20,%rcx
+ jl .Lxorpart2
+ vpxord 0x10(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x10(%rsi)
+ vextracti128 $1,%ymm7,%xmm1
+ # o2 = i2 ^ (x2 + s2)
+ vpaddd %ymm10,%ymm2,%ymm7
+ cmp $0x30,%rcx
+ jl .Lxorpart2
+ vpxord 0x20(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x20(%rsi)
+ vextracti128 $1,%ymm7,%xmm2
+ # o3 = i3 ^ (x3 + s3)
+ vpaddd %ymm11,%ymm3,%ymm7
+ cmp $0x40,%rcx
+ jl .Lxorpart2
+ vpxord 0x30(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x30(%rsi)
+ vextracti128 $1,%ymm7,%xmm3
+
+ # xor and write second block
+ vmovdqa %xmm0,%xmm7
+ cmp $0x50,%rcx
+ jl .Lxorpart2
+ vpxord 0x40(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x40(%rsi)
+
+ vmovdqa %xmm1,%xmm7
+ cmp $0x60,%rcx
+ jl .Lxorpart2
+ vpxord 0x50(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x50(%rsi)
+
+ vmovdqa %xmm2,%xmm7
+ cmp $0x70,%rcx
+ jl .Lxorpart2
+ vpxord 0x60(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x60(%rsi)
+
+ vmovdqa %xmm3,%xmm7
+ cmp $0x80,%rcx
+ jl .Lxorpart2
+ vpxord 0x70(%rdx),%xmm7,%xmm6
+ vmovdqu %xmm6,0x70(%rsi)
+
+.Ldone2:
+ vzeroupper
+ RET
+
+.Lxorpart2:
+ # xor remaining bytes from partial register into output
+ mov %rcx,%rax
+ and $0xf,%rcx
+ jz .Ldone2
+ mov %rax,%r9
+ and $~0xf,%r9
+
+ mov $1,%rax
+ shld %cl,%rax,%rax
+ sub $1,%rax
+ kmovq %rax,%k1
+
+ vmovdqu8 (%rdx,%r9),%xmm1{%k1}{z}
+ vpxord %xmm7,%xmm1,%xmm1
+ vmovdqu8 %xmm1,(%rsi,%r9){%k1}
+
+ jmp .Ldone2
+
+SYM_FUNC_END(chacha_2block_xor_avx512vl)
+
+SYM_FUNC_START(chacha_4block_xor_avx512vl)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 4 data blocks output, o
+ # %rdx: up to 4 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts four ChaCha blocks by loading the state
+ # matrix four times across eight AVX registers. It performs matrix
+ # operations on four words in two matrices in parallel, sequentially
+ # to the operations on the four words of the other two matrices. The
+ # required word shuffling has a rather high latency, we can do the
+ # arithmetic on two matrix-pairs without much slowdown.
+
+ vzeroupper
+
+ # x0..3[0-4] = s0..3
+ vbroadcasti128 0x00(%rdi),%ymm0
+ vbroadcasti128 0x10(%rdi),%ymm1
+ vbroadcasti128 0x20(%rdi),%ymm2
+ vbroadcasti128 0x30(%rdi),%ymm3
+
+ vmovdqa %ymm0,%ymm4
+ vmovdqa %ymm1,%ymm5
+ vmovdqa %ymm2,%ymm6
+ vmovdqa %ymm3,%ymm7
+
+ vpaddd CTR2BL(%rip),%ymm3,%ymm3
+ vpaddd CTR4BL(%rip),%ymm7,%ymm7
+
+ vmovdqa %ymm0,%ymm11
+ vmovdqa %ymm1,%ymm12
+ vmovdqa %ymm2,%ymm13
+ vmovdqa %ymm3,%ymm14
+ vmovdqa %ymm7,%ymm15
+
+.Ldoubleround4:
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $16,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxord %ymm4,%ymm7,%ymm7
+ vprold $16,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $12,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxord %ymm6,%ymm5,%ymm5
+ vprold $12,%ymm5,%ymm5
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $8,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxord %ymm4,%ymm7,%ymm7
+ vprold $8,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $7,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxord %ymm6,%ymm5,%ymm5
+ vprold $7,%ymm5,%ymm5
+
+ # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm1,%ymm1
+ vpshufd $0x39,%ymm5,%ymm5
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ vpshufd $0x4e,%ymm6,%ymm6
+ # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm3,%ymm3
+ vpshufd $0x93,%ymm7,%ymm7
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $16,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxord %ymm4,%ymm7,%ymm7
+ vprold $16,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $12,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxord %ymm6,%ymm5,%ymm5
+ vprold $12,%ymm5,%ymm5
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ vpaddd %ymm1,%ymm0,%ymm0
+ vpxord %ymm0,%ymm3,%ymm3
+ vprold $8,%ymm3,%ymm3
+
+ vpaddd %ymm5,%ymm4,%ymm4
+ vpxord %ymm4,%ymm7,%ymm7
+ vprold $8,%ymm7,%ymm7
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ vpaddd %ymm3,%ymm2,%ymm2
+ vpxord %ymm2,%ymm1,%ymm1
+ vprold $7,%ymm1,%ymm1
+
+ vpaddd %ymm7,%ymm6,%ymm6
+ vpxord %ymm6,%ymm5,%ymm5
+ vprold $7,%ymm5,%ymm5
+
+ # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ vpshufd $0x93,%ymm1,%ymm1
+ vpshufd $0x93,%ymm5,%ymm5
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ vpshufd $0x4e,%ymm2,%ymm2
+ vpshufd $0x4e,%ymm6,%ymm6
+ # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ vpshufd $0x39,%ymm3,%ymm3
+ vpshufd $0x39,%ymm7,%ymm7
+
+ sub $2,%r8d
+ jnz .Ldoubleround4
+
+ # o0 = i0 ^ (x0 + s0), first block
+ vpaddd %ymm11,%ymm0,%ymm10
+ cmp $0x10,%rcx
+ jl .Lxorpart4
+ vpxord 0x00(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x00(%rsi)
+ vextracti128 $1,%ymm10,%xmm0
+ # o1 = i1 ^ (x1 + s1), first block
+ vpaddd %ymm12,%ymm1,%ymm10
+ cmp $0x20,%rcx
+ jl .Lxorpart4
+ vpxord 0x10(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x10(%rsi)
+ vextracti128 $1,%ymm10,%xmm1
+ # o2 = i2 ^ (x2 + s2), first block
+ vpaddd %ymm13,%ymm2,%ymm10
+ cmp $0x30,%rcx
+ jl .Lxorpart4
+ vpxord 0x20(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x20(%rsi)
+ vextracti128 $1,%ymm10,%xmm2
+ # o3 = i3 ^ (x3 + s3), first block
+ vpaddd %ymm14,%ymm3,%ymm10
+ cmp $0x40,%rcx
+ jl .Lxorpart4
+ vpxord 0x30(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x30(%rsi)
+ vextracti128 $1,%ymm10,%xmm3
+
+ # xor and write second block
+ vmovdqa %xmm0,%xmm10
+ cmp $0x50,%rcx
+ jl .Lxorpart4
+ vpxord 0x40(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x40(%rsi)
+
+ vmovdqa %xmm1,%xmm10
+ cmp $0x60,%rcx
+ jl .Lxorpart4
+ vpxord 0x50(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x50(%rsi)
+
+ vmovdqa %xmm2,%xmm10
+ cmp $0x70,%rcx
+ jl .Lxorpart4
+ vpxord 0x60(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x60(%rsi)
+
+ vmovdqa %xmm3,%xmm10
+ cmp $0x80,%rcx
+ jl .Lxorpart4
+ vpxord 0x70(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x70(%rsi)
+
+ # o0 = i0 ^ (x0 + s0), third block
+ vpaddd %ymm11,%ymm4,%ymm10
+ cmp $0x90,%rcx
+ jl .Lxorpart4
+ vpxord 0x80(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x80(%rsi)
+ vextracti128 $1,%ymm10,%xmm4
+ # o1 = i1 ^ (x1 + s1), third block
+ vpaddd %ymm12,%ymm5,%ymm10
+ cmp $0xa0,%rcx
+ jl .Lxorpart4
+ vpxord 0x90(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0x90(%rsi)
+ vextracti128 $1,%ymm10,%xmm5
+ # o2 = i2 ^ (x2 + s2), third block
+ vpaddd %ymm13,%ymm6,%ymm10
+ cmp $0xb0,%rcx
+ jl .Lxorpart4
+ vpxord 0xa0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xa0(%rsi)
+ vextracti128 $1,%ymm10,%xmm6
+ # o3 = i3 ^ (x3 + s3), third block
+ vpaddd %ymm15,%ymm7,%ymm10
+ cmp $0xc0,%rcx
+ jl .Lxorpart4
+ vpxord 0xb0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xb0(%rsi)
+ vextracti128 $1,%ymm10,%xmm7
+
+ # xor and write fourth block
+ vmovdqa %xmm4,%xmm10
+ cmp $0xd0,%rcx
+ jl .Lxorpart4
+ vpxord 0xc0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xc0(%rsi)
+
+ vmovdqa %xmm5,%xmm10
+ cmp $0xe0,%rcx
+ jl .Lxorpart4
+ vpxord 0xd0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xd0(%rsi)
+
+ vmovdqa %xmm6,%xmm10
+ cmp $0xf0,%rcx
+ jl .Lxorpart4
+ vpxord 0xe0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xe0(%rsi)
+
+ vmovdqa %xmm7,%xmm10
+ cmp $0x100,%rcx
+ jl .Lxorpart4
+ vpxord 0xf0(%rdx),%xmm10,%xmm9
+ vmovdqu %xmm9,0xf0(%rsi)
+
+.Ldone4:
+ vzeroupper
+ RET
+
+.Lxorpart4:
+ # xor remaining bytes from partial register into output
+ mov %rcx,%rax
+ and $0xf,%rcx
+ jz .Ldone4
+ mov %rax,%r9
+ and $~0xf,%r9
+
+ mov $1,%rax
+ shld %cl,%rax,%rax
+ sub $1,%rax
+ kmovq %rax,%k1
+
+ vmovdqu8 (%rdx,%r9),%xmm1{%k1}{z}
+ vpxord %xmm10,%xmm1,%xmm1
+ vmovdqu8 %xmm1,(%rsi,%r9){%k1}
+
+ jmp .Ldone4
+
+SYM_FUNC_END(chacha_4block_xor_avx512vl)
+
+SYM_FUNC_START(chacha_8block_xor_avx512vl)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 8 data blocks output, o
+ # %rdx: up to 8 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts eight consecutive ChaCha blocks by loading
+ # the state matrix in AVX registers eight times. Compared to AVX2, this
+ # mostly benefits from the new rotate instructions in VL and the
+ # additional registers.
+
+ vzeroupper
+
+ # x0..15[0-7] = s[0..15]
+ vpbroadcastd 0x00(%rdi),%ymm0
+ vpbroadcastd 0x04(%rdi),%ymm1
+ vpbroadcastd 0x08(%rdi),%ymm2
+ vpbroadcastd 0x0c(%rdi),%ymm3
+ vpbroadcastd 0x10(%rdi),%ymm4
+ vpbroadcastd 0x14(%rdi),%ymm5
+ vpbroadcastd 0x18(%rdi),%ymm6
+ vpbroadcastd 0x1c(%rdi),%ymm7
+ vpbroadcastd 0x20(%rdi),%ymm8
+ vpbroadcastd 0x24(%rdi),%ymm9
+ vpbroadcastd 0x28(%rdi),%ymm10
+ vpbroadcastd 0x2c(%rdi),%ymm11
+ vpbroadcastd 0x30(%rdi),%ymm12
+ vpbroadcastd 0x34(%rdi),%ymm13
+ vpbroadcastd 0x38(%rdi),%ymm14
+ vpbroadcastd 0x3c(%rdi),%ymm15
+
+ # x12 += counter values 0-3
+ vpaddd CTR8BL(%rip),%ymm12,%ymm12
+
+ vmovdqa64 %ymm0,%ymm16
+ vmovdqa64 %ymm1,%ymm17
+ vmovdqa64 %ymm2,%ymm18
+ vmovdqa64 %ymm3,%ymm19
+ vmovdqa64 %ymm4,%ymm20
+ vmovdqa64 %ymm5,%ymm21
+ vmovdqa64 %ymm6,%ymm22
+ vmovdqa64 %ymm7,%ymm23
+ vmovdqa64 %ymm8,%ymm24
+ vmovdqa64 %ymm9,%ymm25
+ vmovdqa64 %ymm10,%ymm26
+ vmovdqa64 %ymm11,%ymm27
+ vmovdqa64 %ymm12,%ymm28
+ vmovdqa64 %ymm13,%ymm29
+ vmovdqa64 %ymm14,%ymm30
+ vmovdqa64 %ymm15,%ymm31
+
+.Ldoubleround8:
+ # x0 += x4, x12 = rotl32(x12 ^ x0, 16)
+ vpaddd %ymm0,%ymm4,%ymm0
+ vpxord %ymm0,%ymm12,%ymm12
+ vprold $16,%ymm12,%ymm12
+ # x1 += x5, x13 = rotl32(x13 ^ x1, 16)
+ vpaddd %ymm1,%ymm5,%ymm1
+ vpxord %ymm1,%ymm13,%ymm13
+ vprold $16,%ymm13,%ymm13
+ # x2 += x6, x14 = rotl32(x14 ^ x2, 16)
+ vpaddd %ymm2,%ymm6,%ymm2
+ vpxord %ymm2,%ymm14,%ymm14
+ vprold $16,%ymm14,%ymm14
+ # x3 += x7, x15 = rotl32(x15 ^ x3, 16)
+ vpaddd %ymm3,%ymm7,%ymm3
+ vpxord %ymm3,%ymm15,%ymm15
+ vprold $16,%ymm15,%ymm15
+
+ # x8 += x12, x4 = rotl32(x4 ^ x8, 12)
+ vpaddd %ymm12,%ymm8,%ymm8
+ vpxord %ymm8,%ymm4,%ymm4
+ vprold $12,%ymm4,%ymm4
+ # x9 += x13, x5 = rotl32(x5 ^ x9, 12)
+ vpaddd %ymm13,%ymm9,%ymm9
+ vpxord %ymm9,%ymm5,%ymm5
+ vprold $12,%ymm5,%ymm5
+ # x10 += x14, x6 = rotl32(x6 ^ x10, 12)
+ vpaddd %ymm14,%ymm10,%ymm10
+ vpxord %ymm10,%ymm6,%ymm6
+ vprold $12,%ymm6,%ymm6
+ # x11 += x15, x7 = rotl32(x7 ^ x11, 12)
+ vpaddd %ymm15,%ymm11,%ymm11
+ vpxord %ymm11,%ymm7,%ymm7
+ vprold $12,%ymm7,%ymm7
+
+ # x0 += x4, x12 = rotl32(x12 ^ x0, 8)
+ vpaddd %ymm0,%ymm4,%ymm0
+ vpxord %ymm0,%ymm12,%ymm12
+ vprold $8,%ymm12,%ymm12
+ # x1 += x5, x13 = rotl32(x13 ^ x1, 8)
+ vpaddd %ymm1,%ymm5,%ymm1
+ vpxord %ymm1,%ymm13,%ymm13
+ vprold $8,%ymm13,%ymm13
+ # x2 += x6, x14 = rotl32(x14 ^ x2, 8)
+ vpaddd %ymm2,%ymm6,%ymm2
+ vpxord %ymm2,%ymm14,%ymm14
+ vprold $8,%ymm14,%ymm14
+ # x3 += x7, x15 = rotl32(x15 ^ x3, 8)
+ vpaddd %ymm3,%ymm7,%ymm3
+ vpxord %ymm3,%ymm15,%ymm15
+ vprold $8,%ymm15,%ymm15
+
+ # x8 += x12, x4 = rotl32(x4 ^ x8, 7)
+ vpaddd %ymm12,%ymm8,%ymm8
+ vpxord %ymm8,%ymm4,%ymm4
+ vprold $7,%ymm4,%ymm4
+ # x9 += x13, x5 = rotl32(x5 ^ x9, 7)
+ vpaddd %ymm13,%ymm9,%ymm9
+ vpxord %ymm9,%ymm5,%ymm5
+ vprold $7,%ymm5,%ymm5
+ # x10 += x14, x6 = rotl32(x6 ^ x10, 7)
+ vpaddd %ymm14,%ymm10,%ymm10
+ vpxord %ymm10,%ymm6,%ymm6
+ vprold $7,%ymm6,%ymm6
+ # x11 += x15, x7 = rotl32(x7 ^ x11, 7)
+ vpaddd %ymm15,%ymm11,%ymm11
+ vpxord %ymm11,%ymm7,%ymm7
+ vprold $7,%ymm7,%ymm7
+
+ # x0 += x5, x15 = rotl32(x15 ^ x0, 16)
+ vpaddd %ymm0,%ymm5,%ymm0
+ vpxord %ymm0,%ymm15,%ymm15
+ vprold $16,%ymm15,%ymm15
+ # x1 += x6, x12 = rotl32(x12 ^ x1, 16)
+ vpaddd %ymm1,%ymm6,%ymm1
+ vpxord %ymm1,%ymm12,%ymm12
+ vprold $16,%ymm12,%ymm12
+ # x2 += x7, x13 = rotl32(x13 ^ x2, 16)
+ vpaddd %ymm2,%ymm7,%ymm2
+ vpxord %ymm2,%ymm13,%ymm13
+ vprold $16,%ymm13,%ymm13
+ # x3 += x4, x14 = rotl32(x14 ^ x3, 16)
+ vpaddd %ymm3,%ymm4,%ymm3
+ vpxord %ymm3,%ymm14,%ymm14
+ vprold $16,%ymm14,%ymm14
+
+ # x10 += x15, x5 = rotl32(x5 ^ x10, 12)
+ vpaddd %ymm15,%ymm10,%ymm10
+ vpxord %ymm10,%ymm5,%ymm5
+ vprold $12,%ymm5,%ymm5
+ # x11 += x12, x6 = rotl32(x6 ^ x11, 12)
+ vpaddd %ymm12,%ymm11,%ymm11
+ vpxord %ymm11,%ymm6,%ymm6
+ vprold $12,%ymm6,%ymm6
+ # x8 += x13, x7 = rotl32(x7 ^ x8, 12)
+ vpaddd %ymm13,%ymm8,%ymm8
+ vpxord %ymm8,%ymm7,%ymm7
+ vprold $12,%ymm7,%ymm7
+ # x9 += x14, x4 = rotl32(x4 ^ x9, 12)
+ vpaddd %ymm14,%ymm9,%ymm9
+ vpxord %ymm9,%ymm4,%ymm4
+ vprold $12,%ymm4,%ymm4
+
+ # x0 += x5, x15 = rotl32(x15 ^ x0, 8)
+ vpaddd %ymm0,%ymm5,%ymm0
+ vpxord %ymm0,%ymm15,%ymm15
+ vprold $8,%ymm15,%ymm15
+ # x1 += x6, x12 = rotl32(x12 ^ x1, 8)
+ vpaddd %ymm1,%ymm6,%ymm1
+ vpxord %ymm1,%ymm12,%ymm12
+ vprold $8,%ymm12,%ymm12
+ # x2 += x7, x13 = rotl32(x13 ^ x2, 8)
+ vpaddd %ymm2,%ymm7,%ymm2
+ vpxord %ymm2,%ymm13,%ymm13
+ vprold $8,%ymm13,%ymm13
+ # x3 += x4, x14 = rotl32(x14 ^ x3, 8)
+ vpaddd %ymm3,%ymm4,%ymm3
+ vpxord %ymm3,%ymm14,%ymm14
+ vprold $8,%ymm14,%ymm14
+
+ # x10 += x15, x5 = rotl32(x5 ^ x10, 7)
+ vpaddd %ymm15,%ymm10,%ymm10
+ vpxord %ymm10,%ymm5,%ymm5
+ vprold $7,%ymm5,%ymm5
+ # x11 += x12, x6 = rotl32(x6 ^ x11, 7)
+ vpaddd %ymm12,%ymm11,%ymm11
+ vpxord %ymm11,%ymm6,%ymm6
+ vprold $7,%ymm6,%ymm6
+ # x8 += x13, x7 = rotl32(x7 ^ x8, 7)
+ vpaddd %ymm13,%ymm8,%ymm8
+ vpxord %ymm8,%ymm7,%ymm7
+ vprold $7,%ymm7,%ymm7
+ # x9 += x14, x4 = rotl32(x4 ^ x9, 7)
+ vpaddd %ymm14,%ymm9,%ymm9
+ vpxord %ymm9,%ymm4,%ymm4
+ vprold $7,%ymm4,%ymm4
+
+ sub $2,%r8d
+ jnz .Ldoubleround8
+
+ # x0..15[0-3] += s[0..15]
+ vpaddd %ymm16,%ymm0,%ymm0
+ vpaddd %ymm17,%ymm1,%ymm1
+ vpaddd %ymm18,%ymm2,%ymm2
+ vpaddd %ymm19,%ymm3,%ymm3
+ vpaddd %ymm20,%ymm4,%ymm4
+ vpaddd %ymm21,%ymm5,%ymm5
+ vpaddd %ymm22,%ymm6,%ymm6
+ vpaddd %ymm23,%ymm7,%ymm7
+ vpaddd %ymm24,%ymm8,%ymm8
+ vpaddd %ymm25,%ymm9,%ymm9
+ vpaddd %ymm26,%ymm10,%ymm10
+ vpaddd %ymm27,%ymm11,%ymm11
+ vpaddd %ymm28,%ymm12,%ymm12
+ vpaddd %ymm29,%ymm13,%ymm13
+ vpaddd %ymm30,%ymm14,%ymm14
+ vpaddd %ymm31,%ymm15,%ymm15
+
+ # interleave 32-bit words in state n, n+1
+ vpunpckldq %ymm1,%ymm0,%ymm16
+ vpunpckhdq %ymm1,%ymm0,%ymm17
+ vpunpckldq %ymm3,%ymm2,%ymm18
+ vpunpckhdq %ymm3,%ymm2,%ymm19
+ vpunpckldq %ymm5,%ymm4,%ymm20
+ vpunpckhdq %ymm5,%ymm4,%ymm21
+ vpunpckldq %ymm7,%ymm6,%ymm22
+ vpunpckhdq %ymm7,%ymm6,%ymm23
+ vpunpckldq %ymm9,%ymm8,%ymm24
+ vpunpckhdq %ymm9,%ymm8,%ymm25
+ vpunpckldq %ymm11,%ymm10,%ymm26
+ vpunpckhdq %ymm11,%ymm10,%ymm27
+ vpunpckldq %ymm13,%ymm12,%ymm28
+ vpunpckhdq %ymm13,%ymm12,%ymm29
+ vpunpckldq %ymm15,%ymm14,%ymm30
+ vpunpckhdq %ymm15,%ymm14,%ymm31
+
+ # interleave 64-bit words in state n, n+2
+ vpunpcklqdq %ymm18,%ymm16,%ymm0
+ vpunpcklqdq %ymm19,%ymm17,%ymm1
+ vpunpckhqdq %ymm18,%ymm16,%ymm2
+ vpunpckhqdq %ymm19,%ymm17,%ymm3
+ vpunpcklqdq %ymm22,%ymm20,%ymm4
+ vpunpcklqdq %ymm23,%ymm21,%ymm5
+ vpunpckhqdq %ymm22,%ymm20,%ymm6
+ vpunpckhqdq %ymm23,%ymm21,%ymm7
+ vpunpcklqdq %ymm26,%ymm24,%ymm8
+ vpunpcklqdq %ymm27,%ymm25,%ymm9
+ vpunpckhqdq %ymm26,%ymm24,%ymm10
+ vpunpckhqdq %ymm27,%ymm25,%ymm11
+ vpunpcklqdq %ymm30,%ymm28,%ymm12
+ vpunpcklqdq %ymm31,%ymm29,%ymm13
+ vpunpckhqdq %ymm30,%ymm28,%ymm14
+ vpunpckhqdq %ymm31,%ymm29,%ymm15
+
+ # interleave 128-bit words in state n, n+4
+ # xor/write first four blocks
+ vmovdqa64 %ymm0,%ymm16
+ vperm2i128 $0x20,%ymm4,%ymm0,%ymm0
+ cmp $0x0020,%rcx
+ jl .Lxorpart8
+ vpxord 0x0000(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0000(%rsi)
+ vmovdqa64 %ymm16,%ymm0
+ vperm2i128 $0x31,%ymm4,%ymm0,%ymm4
+
+ vperm2i128 $0x20,%ymm12,%ymm8,%ymm0
+ cmp $0x0040,%rcx
+ jl .Lxorpart8
+ vpxord 0x0020(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0020(%rsi)
+ vperm2i128 $0x31,%ymm12,%ymm8,%ymm12
+
+ vperm2i128 $0x20,%ymm6,%ymm2,%ymm0
+ cmp $0x0060,%rcx
+ jl .Lxorpart8
+ vpxord 0x0040(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0040(%rsi)
+ vperm2i128 $0x31,%ymm6,%ymm2,%ymm6
+
+ vperm2i128 $0x20,%ymm14,%ymm10,%ymm0
+ cmp $0x0080,%rcx
+ jl .Lxorpart8
+ vpxord 0x0060(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0060(%rsi)
+ vperm2i128 $0x31,%ymm14,%ymm10,%ymm14
+
+ vperm2i128 $0x20,%ymm5,%ymm1,%ymm0
+ cmp $0x00a0,%rcx
+ jl .Lxorpart8
+ vpxord 0x0080(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0080(%rsi)
+ vperm2i128 $0x31,%ymm5,%ymm1,%ymm5
+
+ vperm2i128 $0x20,%ymm13,%ymm9,%ymm0
+ cmp $0x00c0,%rcx
+ jl .Lxorpart8
+ vpxord 0x00a0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x00a0(%rsi)
+ vperm2i128 $0x31,%ymm13,%ymm9,%ymm13
+
+ vperm2i128 $0x20,%ymm7,%ymm3,%ymm0
+ cmp $0x00e0,%rcx
+ jl .Lxorpart8
+ vpxord 0x00c0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x00c0(%rsi)
+ vperm2i128 $0x31,%ymm7,%ymm3,%ymm7
+
+ vperm2i128 $0x20,%ymm15,%ymm11,%ymm0
+ cmp $0x0100,%rcx
+ jl .Lxorpart8
+ vpxord 0x00e0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x00e0(%rsi)
+ vperm2i128 $0x31,%ymm15,%ymm11,%ymm15
+
+ # xor remaining blocks, write to output
+ vmovdqa64 %ymm4,%ymm0
+ cmp $0x0120,%rcx
+ jl .Lxorpart8
+ vpxord 0x0100(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0100(%rsi)
+
+ vmovdqa64 %ymm12,%ymm0
+ cmp $0x0140,%rcx
+ jl .Lxorpart8
+ vpxord 0x0120(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0120(%rsi)
+
+ vmovdqa64 %ymm6,%ymm0
+ cmp $0x0160,%rcx
+ jl .Lxorpart8
+ vpxord 0x0140(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0140(%rsi)
+
+ vmovdqa64 %ymm14,%ymm0
+ cmp $0x0180,%rcx
+ jl .Lxorpart8
+ vpxord 0x0160(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0160(%rsi)
+
+ vmovdqa64 %ymm5,%ymm0
+ cmp $0x01a0,%rcx
+ jl .Lxorpart8
+ vpxord 0x0180(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x0180(%rsi)
+
+ vmovdqa64 %ymm13,%ymm0
+ cmp $0x01c0,%rcx
+ jl .Lxorpart8
+ vpxord 0x01a0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x01a0(%rsi)
+
+ vmovdqa64 %ymm7,%ymm0
+ cmp $0x01e0,%rcx
+ jl .Lxorpart8
+ vpxord 0x01c0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x01c0(%rsi)
+
+ vmovdqa64 %ymm15,%ymm0
+ cmp $0x0200,%rcx
+ jl .Lxorpart8
+ vpxord 0x01e0(%rdx),%ymm0,%ymm0
+ vmovdqu64 %ymm0,0x01e0(%rsi)
+
+.Ldone8:
+ vzeroupper
+ RET
+
+.Lxorpart8:
+ # xor remaining bytes from partial register into output
+ mov %rcx,%rax
+ and $0x1f,%rcx
+ jz .Ldone8
+ mov %rax,%r9
+ and $~0x1f,%r9
+
+ mov $1,%rax
+ shld %cl,%rax,%rax
+ sub $1,%rax
+ kmovq %rax,%k1
+
+ vmovdqu8 (%rdx,%r9),%ymm1{%k1}{z}
+ vpxord %ymm0,%ymm1,%ymm1
+ vmovdqu8 %ymm1,(%rsi,%r9){%k1}
+
+ jmp .Ldone8
+
+SYM_FUNC_END(chacha_8block_xor_avx512vl)
diff --git a/arch/x86/crypto/chacha-ssse3-x86_64.S b/arch/x86/crypto/chacha-ssse3-x86_64.S
new file mode 100644
index 000000000000..7111949cd5b9
--- /dev/null
+++ b/arch/x86/crypto/chacha-ssse3-x86_64.S
@@ -0,0 +1,791 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * ChaCha 256-bit cipher algorithm, x64 SSSE3 functions
+ *
+ * Copyright (C) 2015 Martin Willi
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+
+.section .rodata.cst16.ROT8, "aM", @progbits, 16
+.align 16
+ROT8: .octa 0x0e0d0c0f0a09080b0605040702010003
+.section .rodata.cst16.ROT16, "aM", @progbits, 16
+.align 16
+ROT16: .octa 0x0d0c0f0e09080b0a0504070601000302
+.section .rodata.cst16.CTRINC, "aM", @progbits, 16
+.align 16
+CTRINC: .octa 0x00000003000000020000000100000000
+
+.text
+
+/*
+ * chacha_permute - permute one block
+ *
+ * Permute one 64-byte block where the state matrix is in %xmm0-%xmm3. This
+ * function performs matrix operations on four words in parallel, but requires
+ * shuffling to rearrange the words after each round. 8/16-bit word rotation is
+ * done with the slightly better performing SSSE3 byte shuffling, 7/12-bit word
+ * rotation uses traditional shift+OR.
+ *
+ * The round count is given in %r8d.
+ *
+ * Clobbers: %r8d, %xmm4-%xmm7
+ */
+SYM_FUNC_START_LOCAL(chacha_permute)
+
+ movdqa ROT8(%rip),%xmm4
+ movdqa ROT16(%rip),%xmm5
+
+.Ldoubleround:
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm5,%xmm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm6
+ pslld $12,%xmm6
+ psrld $20,%xmm1
+ por %xmm6,%xmm1
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm4,%xmm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm7
+ pslld $7,%xmm7
+ psrld $25,%xmm1
+ por %xmm7,%xmm1
+
+ # x1 = shuffle32(x1, MASK(0, 3, 2, 1))
+ pshufd $0x39,%xmm1,%xmm1
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ pshufd $0x4e,%xmm2,%xmm2
+ # x3 = shuffle32(x3, MASK(2, 1, 0, 3))
+ pshufd $0x93,%xmm3,%xmm3
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 16)
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm5,%xmm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 12)
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm6
+ pslld $12,%xmm6
+ psrld $20,%xmm1
+ por %xmm6,%xmm1
+
+ # x0 += x1, x3 = rotl32(x3 ^ x0, 8)
+ paddd %xmm1,%xmm0
+ pxor %xmm0,%xmm3
+ pshufb %xmm4,%xmm3
+
+ # x2 += x3, x1 = rotl32(x1 ^ x2, 7)
+ paddd %xmm3,%xmm2
+ pxor %xmm2,%xmm1
+ movdqa %xmm1,%xmm7
+ pslld $7,%xmm7
+ psrld $25,%xmm1
+ por %xmm7,%xmm1
+
+ # x1 = shuffle32(x1, MASK(2, 1, 0, 3))
+ pshufd $0x93,%xmm1,%xmm1
+ # x2 = shuffle32(x2, MASK(1, 0, 3, 2))
+ pshufd $0x4e,%xmm2,%xmm2
+ # x3 = shuffle32(x3, MASK(0, 3, 2, 1))
+ pshufd $0x39,%xmm3,%xmm3
+
+ sub $2,%r8d
+ jnz .Ldoubleround
+
+ RET
+SYM_FUNC_END(chacha_permute)
+
+SYM_FUNC_START(chacha_block_xor_ssse3)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 1 data block output, o
+ # %rdx: up to 1 data block input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+ FRAME_BEGIN
+
+ # x0..3 = s0..3
+ movdqu 0x00(%rdi),%xmm0
+ movdqu 0x10(%rdi),%xmm1
+ movdqu 0x20(%rdi),%xmm2
+ movdqu 0x30(%rdi),%xmm3
+ movdqa %xmm0,%xmm8
+ movdqa %xmm1,%xmm9
+ movdqa %xmm2,%xmm10
+ movdqa %xmm3,%xmm11
+
+ mov %rcx,%rax
+ call chacha_permute
+
+ # o0 = i0 ^ (x0 + s0)
+ paddd %xmm8,%xmm0
+ cmp $0x10,%rax
+ jl .Lxorpart
+ movdqu 0x00(%rdx),%xmm4
+ pxor %xmm4,%xmm0
+ movdqu %xmm0,0x00(%rsi)
+ # o1 = i1 ^ (x1 + s1)
+ paddd %xmm9,%xmm1
+ movdqa %xmm1,%xmm0
+ cmp $0x20,%rax
+ jl .Lxorpart
+ movdqu 0x10(%rdx),%xmm0
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x10(%rsi)
+ # o2 = i2 ^ (x2 + s2)
+ paddd %xmm10,%xmm2
+ movdqa %xmm2,%xmm0
+ cmp $0x30,%rax
+ jl .Lxorpart
+ movdqu 0x20(%rdx),%xmm0
+ pxor %xmm2,%xmm0
+ movdqu %xmm0,0x20(%rsi)
+ # o3 = i3 ^ (x3 + s3)
+ paddd %xmm11,%xmm3
+ movdqa %xmm3,%xmm0
+ cmp $0x40,%rax
+ jl .Lxorpart
+ movdqu 0x30(%rdx),%xmm0
+ pxor %xmm3,%xmm0
+ movdqu %xmm0,0x30(%rsi)
+
+.Ldone:
+ FRAME_END
+ RET
+
+.Lxorpart:
+ # xor remaining bytes from partial register into output
+ mov %rax,%r9
+ and $0x0f,%r9
+ jz .Ldone
+ and $~0x0f,%rax
+
+ mov %rsi,%r11
+
+ lea 8(%rsp),%r10
+ sub $0x10,%rsp
+ and $~31,%rsp
+
+ lea (%rdx,%rax),%rsi
+ mov %rsp,%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ pxor 0x00(%rsp),%xmm0
+ movdqa %xmm0,0x00(%rsp)
+
+ mov %rsp,%rsi
+ lea (%r11,%rax),%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ lea -8(%r10),%rsp
+ jmp .Ldone
+
+SYM_FUNC_END(chacha_block_xor_ssse3)
+
+SYM_FUNC_START(hchacha_block_ssse3)
+ # %rdi: Input state matrix, s
+ # %rsi: output (8 32-bit words)
+ # %edx: nrounds
+ FRAME_BEGIN
+
+ movdqu 0x00(%rdi),%xmm0
+ movdqu 0x10(%rdi),%xmm1
+ movdqu 0x20(%rdi),%xmm2
+ movdqu 0x30(%rdi),%xmm3
+
+ mov %edx,%r8d
+ call chacha_permute
+
+ movdqu %xmm0,0x00(%rsi)
+ movdqu %xmm3,0x10(%rsi)
+
+ FRAME_END
+ RET
+SYM_FUNC_END(hchacha_block_ssse3)
+
+SYM_FUNC_START(chacha_4block_xor_ssse3)
+ # %rdi: Input state matrix, s
+ # %rsi: up to 4 data blocks output, o
+ # %rdx: up to 4 data blocks input, i
+ # %rcx: input/output length in bytes
+ # %r8d: nrounds
+
+ # This function encrypts four consecutive ChaCha blocks by loading the
+ # the state matrix in SSE registers four times. As we need some scratch
+ # registers, we save the first four registers on the stack. The
+ # algorithm performs each operation on the corresponding word of each
+ # state matrix, hence requires no word shuffling. For final XORing step
+ # we transpose the matrix by interleaving 32- and then 64-bit words,
+ # which allows us to do XOR in SSE registers. 8/16-bit word rotation is
+ # done with the slightly better performing SSSE3 byte shuffling,
+ # 7/12-bit word rotation uses traditional shift+OR.
+
+ lea 8(%rsp),%r10
+ sub $0x80,%rsp
+ and $~63,%rsp
+ mov %rcx,%rax
+
+ # x0..15[0-3] = s0..3[0..3]
+ movq 0x00(%rdi),%xmm1
+ pshufd $0x00,%xmm1,%xmm0
+ pshufd $0x55,%xmm1,%xmm1
+ movq 0x08(%rdi),%xmm3
+ pshufd $0x00,%xmm3,%xmm2
+ pshufd $0x55,%xmm3,%xmm3
+ movq 0x10(%rdi),%xmm5
+ pshufd $0x00,%xmm5,%xmm4
+ pshufd $0x55,%xmm5,%xmm5
+ movq 0x18(%rdi),%xmm7
+ pshufd $0x00,%xmm7,%xmm6
+ pshufd $0x55,%xmm7,%xmm7
+ movq 0x20(%rdi),%xmm9
+ pshufd $0x00,%xmm9,%xmm8
+ pshufd $0x55,%xmm9,%xmm9
+ movq 0x28(%rdi),%xmm11
+ pshufd $0x00,%xmm11,%xmm10
+ pshufd $0x55,%xmm11,%xmm11
+ movq 0x30(%rdi),%xmm13
+ pshufd $0x00,%xmm13,%xmm12
+ pshufd $0x55,%xmm13,%xmm13
+ movq 0x38(%rdi),%xmm15
+ pshufd $0x00,%xmm15,%xmm14
+ pshufd $0x55,%xmm15,%xmm15
+ # x0..3 on stack
+ movdqa %xmm0,0x00(%rsp)
+ movdqa %xmm1,0x10(%rsp)
+ movdqa %xmm2,0x20(%rsp)
+ movdqa %xmm3,0x30(%rsp)
+
+ movdqa CTRINC(%rip),%xmm1
+ movdqa ROT8(%rip),%xmm2
+ movdqa ROT16(%rip),%xmm3
+
+ # x12 += counter values 0-3
+ paddd %xmm1,%xmm12
+
+.Ldoubleround4:
+ # x0 += x4, x12 = rotl32(x12 ^ x0, 16)
+ movdqa 0x00(%rsp),%xmm0
+ paddd %xmm4,%xmm0
+ movdqa %xmm0,0x00(%rsp)
+ pxor %xmm0,%xmm12
+ pshufb %xmm3,%xmm12
+ # x1 += x5, x13 = rotl32(x13 ^ x1, 16)
+ movdqa 0x10(%rsp),%xmm0
+ paddd %xmm5,%xmm0
+ movdqa %xmm0,0x10(%rsp)
+ pxor %xmm0,%xmm13
+ pshufb %xmm3,%xmm13
+ # x2 += x6, x14 = rotl32(x14 ^ x2, 16)
+ movdqa 0x20(%rsp),%xmm0
+ paddd %xmm6,%xmm0
+ movdqa %xmm0,0x20(%rsp)
+ pxor %xmm0,%xmm14
+ pshufb %xmm3,%xmm14
+ # x3 += x7, x15 = rotl32(x15 ^ x3, 16)
+ movdqa 0x30(%rsp),%xmm0
+ paddd %xmm7,%xmm0
+ movdqa %xmm0,0x30(%rsp)
+ pxor %xmm0,%xmm15
+ pshufb %xmm3,%xmm15
+
+ # x8 += x12, x4 = rotl32(x4 ^ x8, 12)
+ paddd %xmm12,%xmm8
+ pxor %xmm8,%xmm4
+ movdqa %xmm4,%xmm0
+ pslld $12,%xmm0
+ psrld $20,%xmm4
+ por %xmm0,%xmm4
+ # x9 += x13, x5 = rotl32(x5 ^ x9, 12)
+ paddd %xmm13,%xmm9
+ pxor %xmm9,%xmm5
+ movdqa %xmm5,%xmm0
+ pslld $12,%xmm0
+ psrld $20,%xmm5
+ por %xmm0,%xmm5
+ # x10 += x14, x6 = rotl32(x6 ^ x10, 12)
+ paddd %xmm14,%xmm10
+ pxor %xmm10,%xmm6
+ movdqa %xmm6,%xmm0
+ pslld $12,%xmm0
+ psrld $20,%xmm6
+ por %xmm0,%xmm6
+ # x11 += x15, x7 = rotl32(x7 ^ x11, 12)
+ paddd %xmm15,%xmm11
+ pxor %xmm11,%xmm7
+ movdqa %xmm7,%xmm0
+ pslld $12,%xmm0
+ psrld $20,%xmm7
+ por %xmm0,%xmm7
+
+ # x0 += x4, x12 = rotl32(x12 ^ x0, 8)
+ movdqa 0x00(%rsp),%xmm0
+ paddd %xmm4,%xmm0
+ movdqa %xmm0,0x00(%rsp)
+ pxor %xmm0,%xmm12
+ pshufb %xmm2,%xmm12
+ # x1 += x5, x13 = rotl32(x13 ^ x1, 8)
+ movdqa 0x10(%rsp),%xmm0
+ paddd %xmm5,%xmm0
+ movdqa %xmm0,0x10(%rsp)
+ pxor %xmm0,%xmm13
+ pshufb %xmm2,%xmm13
+ # x2 += x6, x14 = rotl32(x14 ^ x2, 8)
+ movdqa 0x20(%rsp),%xmm0
+ paddd %xmm6,%xmm0
+ movdqa %xmm0,0x20(%rsp)
+ pxor %xmm0,%xmm14
+ pshufb %xmm2,%xmm14
+ # x3 += x7, x15 = rotl32(x15 ^ x3, 8)
+ movdqa 0x30(%rsp),%xmm0
+ paddd %xmm7,%xmm0
+ movdqa %xmm0,0x30(%rsp)
+ pxor %xmm0,%xmm15
+ pshufb %xmm2,%xmm15
+
+ # x8 += x12, x4 = rotl32(x4 ^ x8, 7)
+ paddd %xmm12,%xmm8
+ pxor %xmm8,%xmm4
+ movdqa %xmm4,%xmm0
+ pslld $7,%xmm0
+ psrld $25,%xmm4
+ por %xmm0,%xmm4
+ # x9 += x13, x5 = rotl32(x5 ^ x9, 7)
+ paddd %xmm13,%xmm9
+ pxor %xmm9,%xmm5
+ movdqa %xmm5,%xmm0
+ pslld $7,%xmm0
+ psrld $25,%xmm5
+ por %xmm0,%xmm5
+ # x10 += x14, x6 = rotl32(x6 ^ x10, 7)
+ paddd %xmm14,%xmm10
+ pxor %xmm10,%xmm6
+ movdqa %xmm6,%xmm0
+ pslld $7,%xmm0
+ psrld $25,%xmm6
+ por %xmm0,%xmm6
+ # x11 += x15, x7 = rotl32(x7 ^ x11, 7)
+ paddd %xmm15,%xmm11
+ pxor %xmm11,%xmm7
+ movdqa %xmm7,%xmm0
+ pslld $7,%xmm0
+ psrld $25,%xmm7
+ por %xmm0,%xmm7
+
+ # x0 += x5, x15 = rotl32(x15 ^ x0, 16)
+ movdqa 0x00(%rsp),%xmm0
+ paddd %xmm5,%xmm0
+ movdqa %xmm0,0x00(%rsp)
+ pxor %xmm0,%xmm15
+ pshufb %xmm3,%xmm15
+ # x1 += x6, x12 = rotl32(x12 ^ x1, 16)
+ movdqa 0x10(%rsp),%xmm0
+ paddd %xmm6,%xmm0
+ movdqa %xmm0,0x10(%rsp)
+ pxor %xmm0,%xmm12
+ pshufb %xmm3,%xmm12
+ # x2 += x7, x13 = rotl32(x13 ^ x2, 16)
+ movdqa 0x20(%rsp),%xmm0
+ paddd %xmm7,%xmm0
+ movdqa %xmm0,0x20(%rsp)
+ pxor %xmm0,%xmm13
+ pshufb %xmm3,%xmm13
+ # x3 += x4, x14 = rotl32(x14 ^ x3, 16)
+ movdqa 0x30(%rsp),%xmm0
+ paddd %xmm4,%xmm0
+ movdqa %xmm0,0x30(%rsp)
+ pxor %xmm0,%xmm14
+ pshufb %xmm3,%xmm14
+
+ # x10 += x15, x5 = rotl32(x5 ^ x10, 12)
+ paddd %xmm15,%xmm10
+ pxor %xmm10,%xmm5
+ movdqa %xmm5,%xmm0
+ pslld $12,%xmm0
+ psrld $20,%xmm5
+ por %xmm0,%xmm5
+ # x11 += x12, x6 = rotl32(x6 ^ x11, 12)
+ paddd %xmm12,%xmm11
+ pxor %xmm11,%xmm6
+ movdqa %xmm6,%xmm0
+ pslld $12,%xmm0
+ psrld $20,%xmm6
+ por %xmm0,%xmm6
+ # x8 += x13, x7 = rotl32(x7 ^ x8, 12)
+ paddd %xmm13,%xmm8
+ pxor %xmm8,%xmm7
+ movdqa %xmm7,%xmm0
+ pslld $12,%xmm0
+ psrld $20,%xmm7
+ por %xmm0,%xmm7
+ # x9 += x14, x4 = rotl32(x4 ^ x9, 12)
+ paddd %xmm14,%xmm9
+ pxor %xmm9,%xmm4
+ movdqa %xmm4,%xmm0
+ pslld $12,%xmm0
+ psrld $20,%xmm4
+ por %xmm0,%xmm4
+
+ # x0 += x5, x15 = rotl32(x15 ^ x0, 8)
+ movdqa 0x00(%rsp),%xmm0
+ paddd %xmm5,%xmm0
+ movdqa %xmm0,0x00(%rsp)
+ pxor %xmm0,%xmm15
+ pshufb %xmm2,%xmm15
+ # x1 += x6, x12 = rotl32(x12 ^ x1, 8)
+ movdqa 0x10(%rsp),%xmm0
+ paddd %xmm6,%xmm0
+ movdqa %xmm0,0x10(%rsp)
+ pxor %xmm0,%xmm12
+ pshufb %xmm2,%xmm12
+ # x2 += x7, x13 = rotl32(x13 ^ x2, 8)
+ movdqa 0x20(%rsp),%xmm0
+ paddd %xmm7,%xmm0
+ movdqa %xmm0,0x20(%rsp)
+ pxor %xmm0,%xmm13
+ pshufb %xmm2,%xmm13
+ # x3 += x4, x14 = rotl32(x14 ^ x3, 8)
+ movdqa 0x30(%rsp),%xmm0
+ paddd %xmm4,%xmm0
+ movdqa %xmm0,0x30(%rsp)
+ pxor %xmm0,%xmm14
+ pshufb %xmm2,%xmm14
+
+ # x10 += x15, x5 = rotl32(x5 ^ x10, 7)
+ paddd %xmm15,%xmm10
+ pxor %xmm10,%xmm5
+ movdqa %xmm5,%xmm0
+ pslld $7,%xmm0
+ psrld $25,%xmm5
+ por %xmm0,%xmm5
+ # x11 += x12, x6 = rotl32(x6 ^ x11, 7)
+ paddd %xmm12,%xmm11
+ pxor %xmm11,%xmm6
+ movdqa %xmm6,%xmm0
+ pslld $7,%xmm0
+ psrld $25,%xmm6
+ por %xmm0,%xmm6
+ # x8 += x13, x7 = rotl32(x7 ^ x8, 7)
+ paddd %xmm13,%xmm8
+ pxor %xmm8,%xmm7
+ movdqa %xmm7,%xmm0
+ pslld $7,%xmm0
+ psrld $25,%xmm7
+ por %xmm0,%xmm7
+ # x9 += x14, x4 = rotl32(x4 ^ x9, 7)
+ paddd %xmm14,%xmm9
+ pxor %xmm9,%xmm4
+ movdqa %xmm4,%xmm0
+ pslld $7,%xmm0
+ psrld $25,%xmm4
+ por %xmm0,%xmm4
+
+ sub $2,%r8d
+ jnz .Ldoubleround4
+
+ # x0[0-3] += s0[0]
+ # x1[0-3] += s0[1]
+ movq 0x00(%rdi),%xmm3
+ pshufd $0x00,%xmm3,%xmm2
+ pshufd $0x55,%xmm3,%xmm3
+ paddd 0x00(%rsp),%xmm2
+ movdqa %xmm2,0x00(%rsp)
+ paddd 0x10(%rsp),%xmm3
+ movdqa %xmm3,0x10(%rsp)
+ # x2[0-3] += s0[2]
+ # x3[0-3] += s0[3]
+ movq 0x08(%rdi),%xmm3
+ pshufd $0x00,%xmm3,%xmm2
+ pshufd $0x55,%xmm3,%xmm3
+ paddd 0x20(%rsp),%xmm2
+ movdqa %xmm2,0x20(%rsp)
+ paddd 0x30(%rsp),%xmm3
+ movdqa %xmm3,0x30(%rsp)
+
+ # x4[0-3] += s1[0]
+ # x5[0-3] += s1[1]
+ movq 0x10(%rdi),%xmm3
+ pshufd $0x00,%xmm3,%xmm2
+ pshufd $0x55,%xmm3,%xmm3
+ paddd %xmm2,%xmm4
+ paddd %xmm3,%xmm5
+ # x6[0-3] += s1[2]
+ # x7[0-3] += s1[3]
+ movq 0x18(%rdi),%xmm3
+ pshufd $0x00,%xmm3,%xmm2
+ pshufd $0x55,%xmm3,%xmm3
+ paddd %xmm2,%xmm6
+ paddd %xmm3,%xmm7
+
+ # x8[0-3] += s2[0]
+ # x9[0-3] += s2[1]
+ movq 0x20(%rdi),%xmm3
+ pshufd $0x00,%xmm3,%xmm2
+ pshufd $0x55,%xmm3,%xmm3
+ paddd %xmm2,%xmm8
+ paddd %xmm3,%xmm9
+ # x10[0-3] += s2[2]
+ # x11[0-3] += s2[3]
+ movq 0x28(%rdi),%xmm3
+ pshufd $0x00,%xmm3,%xmm2
+ pshufd $0x55,%xmm3,%xmm3
+ paddd %xmm2,%xmm10
+ paddd %xmm3,%xmm11
+
+ # x12[0-3] += s3[0]
+ # x13[0-3] += s3[1]
+ movq 0x30(%rdi),%xmm3
+ pshufd $0x00,%xmm3,%xmm2
+ pshufd $0x55,%xmm3,%xmm3
+ paddd %xmm2,%xmm12
+ paddd %xmm3,%xmm13
+ # x14[0-3] += s3[2]
+ # x15[0-3] += s3[3]
+ movq 0x38(%rdi),%xmm3
+ pshufd $0x00,%xmm3,%xmm2
+ pshufd $0x55,%xmm3,%xmm3
+ paddd %xmm2,%xmm14
+ paddd %xmm3,%xmm15
+
+ # x12 += counter values 0-3
+ paddd %xmm1,%xmm12
+
+ # interleave 32-bit words in state n, n+1
+ movdqa 0x00(%rsp),%xmm0
+ movdqa 0x10(%rsp),%xmm1
+ movdqa %xmm0,%xmm2
+ punpckldq %xmm1,%xmm2
+ punpckhdq %xmm1,%xmm0
+ movdqa %xmm2,0x00(%rsp)
+ movdqa %xmm0,0x10(%rsp)
+ movdqa 0x20(%rsp),%xmm0
+ movdqa 0x30(%rsp),%xmm1
+ movdqa %xmm0,%xmm2
+ punpckldq %xmm1,%xmm2
+ punpckhdq %xmm1,%xmm0
+ movdqa %xmm2,0x20(%rsp)
+ movdqa %xmm0,0x30(%rsp)
+ movdqa %xmm4,%xmm0
+ punpckldq %xmm5,%xmm4
+ punpckhdq %xmm5,%xmm0
+ movdqa %xmm0,%xmm5
+ movdqa %xmm6,%xmm0
+ punpckldq %xmm7,%xmm6
+ punpckhdq %xmm7,%xmm0
+ movdqa %xmm0,%xmm7
+ movdqa %xmm8,%xmm0
+ punpckldq %xmm9,%xmm8
+ punpckhdq %xmm9,%xmm0
+ movdqa %xmm0,%xmm9
+ movdqa %xmm10,%xmm0
+ punpckldq %xmm11,%xmm10
+ punpckhdq %xmm11,%xmm0
+ movdqa %xmm0,%xmm11
+ movdqa %xmm12,%xmm0
+ punpckldq %xmm13,%xmm12
+ punpckhdq %xmm13,%xmm0
+ movdqa %xmm0,%xmm13
+ movdqa %xmm14,%xmm0
+ punpckldq %xmm15,%xmm14
+ punpckhdq %xmm15,%xmm0
+ movdqa %xmm0,%xmm15
+
+ # interleave 64-bit words in state n, n+2
+ movdqa 0x00(%rsp),%xmm0
+ movdqa 0x20(%rsp),%xmm1
+ movdqa %xmm0,%xmm2
+ punpcklqdq %xmm1,%xmm2
+ punpckhqdq %xmm1,%xmm0
+ movdqa %xmm2,0x00(%rsp)
+ movdqa %xmm0,0x20(%rsp)
+ movdqa 0x10(%rsp),%xmm0
+ movdqa 0x30(%rsp),%xmm1
+ movdqa %xmm0,%xmm2
+ punpcklqdq %xmm1,%xmm2
+ punpckhqdq %xmm1,%xmm0
+ movdqa %xmm2,0x10(%rsp)
+ movdqa %xmm0,0x30(%rsp)
+ movdqa %xmm4,%xmm0
+ punpcklqdq %xmm6,%xmm4
+ punpckhqdq %xmm6,%xmm0
+ movdqa %xmm0,%xmm6
+ movdqa %xmm5,%xmm0
+ punpcklqdq %xmm7,%xmm5
+ punpckhqdq %xmm7,%xmm0
+ movdqa %xmm0,%xmm7
+ movdqa %xmm8,%xmm0
+ punpcklqdq %xmm10,%xmm8
+ punpckhqdq %xmm10,%xmm0
+ movdqa %xmm0,%xmm10
+ movdqa %xmm9,%xmm0
+ punpcklqdq %xmm11,%xmm9
+ punpckhqdq %xmm11,%xmm0
+ movdqa %xmm0,%xmm11
+ movdqa %xmm12,%xmm0
+ punpcklqdq %xmm14,%xmm12
+ punpckhqdq %xmm14,%xmm0
+ movdqa %xmm0,%xmm14
+ movdqa %xmm13,%xmm0
+ punpcklqdq %xmm15,%xmm13
+ punpckhqdq %xmm15,%xmm0
+ movdqa %xmm0,%xmm15
+
+ # xor with corresponding input, write to output
+ movdqa 0x00(%rsp),%xmm0
+ cmp $0x10,%rax
+ jl .Lxorpart4
+ movdqu 0x00(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x00(%rsi)
+
+ movdqu %xmm4,%xmm0
+ cmp $0x20,%rax
+ jl .Lxorpart4
+ movdqu 0x10(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x10(%rsi)
+
+ movdqu %xmm8,%xmm0
+ cmp $0x30,%rax
+ jl .Lxorpart4
+ movdqu 0x20(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x20(%rsi)
+
+ movdqu %xmm12,%xmm0
+ cmp $0x40,%rax
+ jl .Lxorpart4
+ movdqu 0x30(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x30(%rsi)
+
+ movdqa 0x20(%rsp),%xmm0
+ cmp $0x50,%rax
+ jl .Lxorpart4
+ movdqu 0x40(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x40(%rsi)
+
+ movdqu %xmm6,%xmm0
+ cmp $0x60,%rax
+ jl .Lxorpart4
+ movdqu 0x50(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x50(%rsi)
+
+ movdqu %xmm10,%xmm0
+ cmp $0x70,%rax
+ jl .Lxorpart4
+ movdqu 0x60(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x60(%rsi)
+
+ movdqu %xmm14,%xmm0
+ cmp $0x80,%rax
+ jl .Lxorpart4
+ movdqu 0x70(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x70(%rsi)
+
+ movdqa 0x10(%rsp),%xmm0
+ cmp $0x90,%rax
+ jl .Lxorpart4
+ movdqu 0x80(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x80(%rsi)
+
+ movdqu %xmm5,%xmm0
+ cmp $0xa0,%rax
+ jl .Lxorpart4
+ movdqu 0x90(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0x90(%rsi)
+
+ movdqu %xmm9,%xmm0
+ cmp $0xb0,%rax
+ jl .Lxorpart4
+ movdqu 0xa0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xa0(%rsi)
+
+ movdqu %xmm13,%xmm0
+ cmp $0xc0,%rax
+ jl .Lxorpart4
+ movdqu 0xb0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xb0(%rsi)
+
+ movdqa 0x30(%rsp),%xmm0
+ cmp $0xd0,%rax
+ jl .Lxorpart4
+ movdqu 0xc0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xc0(%rsi)
+
+ movdqu %xmm7,%xmm0
+ cmp $0xe0,%rax
+ jl .Lxorpart4
+ movdqu 0xd0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xd0(%rsi)
+
+ movdqu %xmm11,%xmm0
+ cmp $0xf0,%rax
+ jl .Lxorpart4
+ movdqu 0xe0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xe0(%rsi)
+
+ movdqu %xmm15,%xmm0
+ cmp $0x100,%rax
+ jl .Lxorpart4
+ movdqu 0xf0(%rdx),%xmm1
+ pxor %xmm1,%xmm0
+ movdqu %xmm0,0xf0(%rsi)
+
+.Ldone4:
+ lea -8(%r10),%rsp
+ RET
+
+.Lxorpart4:
+ # xor remaining bytes from partial register into output
+ mov %rax,%r9
+ and $0x0f,%r9
+ jz .Ldone4
+ and $~0x0f,%rax
+
+ mov %rsi,%r11
+
+ lea (%rdx,%rax),%rsi
+ mov %rsp,%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ pxor 0x00(%rsp),%xmm0
+ movdqa %xmm0,0x00(%rsp)
+
+ mov %rsp,%rsi
+ lea (%r11,%rax),%rdi
+ mov %r9,%rcx
+ rep movsb
+
+ jmp .Ldone4
+
+SYM_FUNC_END(chacha_4block_xor_ssse3)
diff --git a/arch/x86/crypto/chacha_glue.c b/arch/x86/crypto/chacha_glue.c
new file mode 100644
index 000000000000..7b3a1cf0984b
--- /dev/null
+++ b/arch/x86/crypto/chacha_glue.c
@@ -0,0 +1,317 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * x64 SIMD accelerated ChaCha and XChaCha stream ciphers,
+ * including ChaCha20 (RFC7539)
+ *
+ * Copyright (C) 2015 Martin Willi
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/chacha.h>
+#include <crypto/internal/simd.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sizes.h>
+#include <asm/simd.h>
+
+asmlinkage void chacha_block_xor_ssse3(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void chacha_4block_xor_ssse3(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void hchacha_block_ssse3(const u32 *state, u32 *out, int nrounds);
+
+asmlinkage void chacha_2block_xor_avx2(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void chacha_4block_xor_avx2(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void chacha_8block_xor_avx2(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+
+asmlinkage void chacha_2block_xor_avx512vl(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void chacha_4block_xor_avx512vl(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+asmlinkage void chacha_8block_xor_avx512vl(u32 *state, u8 *dst, const u8 *src,
+ unsigned int len, int nrounds);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(chacha_use_simd);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(chacha_use_avx2);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(chacha_use_avx512vl);
+
+static unsigned int chacha_advance(unsigned int len, unsigned int maxblocks)
+{
+ len = min(len, maxblocks * CHACHA_BLOCK_SIZE);
+ return round_up(len, CHACHA_BLOCK_SIZE) / CHACHA_BLOCK_SIZE;
+}
+
+static void chacha_dosimd(u32 *state, u8 *dst, const u8 *src,
+ unsigned int bytes, int nrounds)
+{
+ if (IS_ENABLED(CONFIG_AS_AVX512) &&
+ static_branch_likely(&chacha_use_avx512vl)) {
+ while (bytes >= CHACHA_BLOCK_SIZE * 8) {
+ chacha_8block_xor_avx512vl(state, dst, src, bytes,
+ nrounds);
+ bytes -= CHACHA_BLOCK_SIZE * 8;
+ src += CHACHA_BLOCK_SIZE * 8;
+ dst += CHACHA_BLOCK_SIZE * 8;
+ state[12] += 8;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE * 4) {
+ chacha_8block_xor_avx512vl(state, dst, src, bytes,
+ nrounds);
+ state[12] += chacha_advance(bytes, 8);
+ return;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE * 2) {
+ chacha_4block_xor_avx512vl(state, dst, src, bytes,
+ nrounds);
+ state[12] += chacha_advance(bytes, 4);
+ return;
+ }
+ if (bytes) {
+ chacha_2block_xor_avx512vl(state, dst, src, bytes,
+ nrounds);
+ state[12] += chacha_advance(bytes, 2);
+ return;
+ }
+ }
+
+ if (static_branch_likely(&chacha_use_avx2)) {
+ while (bytes >= CHACHA_BLOCK_SIZE * 8) {
+ chacha_8block_xor_avx2(state, dst, src, bytes, nrounds);
+ bytes -= CHACHA_BLOCK_SIZE * 8;
+ src += CHACHA_BLOCK_SIZE * 8;
+ dst += CHACHA_BLOCK_SIZE * 8;
+ state[12] += 8;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE * 4) {
+ chacha_8block_xor_avx2(state, dst, src, bytes, nrounds);
+ state[12] += chacha_advance(bytes, 8);
+ return;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE * 2) {
+ chacha_4block_xor_avx2(state, dst, src, bytes, nrounds);
+ state[12] += chacha_advance(bytes, 4);
+ return;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE) {
+ chacha_2block_xor_avx2(state, dst, src, bytes, nrounds);
+ state[12] += chacha_advance(bytes, 2);
+ return;
+ }
+ }
+
+ while (bytes >= CHACHA_BLOCK_SIZE * 4) {
+ chacha_4block_xor_ssse3(state, dst, src, bytes, nrounds);
+ bytes -= CHACHA_BLOCK_SIZE * 4;
+ src += CHACHA_BLOCK_SIZE * 4;
+ dst += CHACHA_BLOCK_SIZE * 4;
+ state[12] += 4;
+ }
+ if (bytes > CHACHA_BLOCK_SIZE) {
+ chacha_4block_xor_ssse3(state, dst, src, bytes, nrounds);
+ state[12] += chacha_advance(bytes, 4);
+ return;
+ }
+ if (bytes) {
+ chacha_block_xor_ssse3(state, dst, src, bytes, nrounds);
+ state[12]++;
+ }
+}
+
+void hchacha_block_arch(const u32 *state, u32 *stream, int nrounds)
+{
+ if (!static_branch_likely(&chacha_use_simd) || !crypto_simd_usable()) {
+ hchacha_block_generic(state, stream, nrounds);
+ } else {
+ kernel_fpu_begin();
+ hchacha_block_ssse3(state, stream, nrounds);
+ kernel_fpu_end();
+ }
+}
+EXPORT_SYMBOL(hchacha_block_arch);
+
+void chacha_init_arch(u32 *state, const u32 *key, const u8 *iv)
+{
+ chacha_init_generic(state, key, iv);
+}
+EXPORT_SYMBOL(chacha_init_arch);
+
+void chacha_crypt_arch(u32 *state, u8 *dst, const u8 *src, unsigned int bytes,
+ int nrounds)
+{
+ if (!static_branch_likely(&chacha_use_simd) || !crypto_simd_usable() ||
+ bytes <= CHACHA_BLOCK_SIZE)
+ return chacha_crypt_generic(state, dst, src, bytes, nrounds);
+
+ do {
+ unsigned int todo = min_t(unsigned int, bytes, SZ_4K);
+
+ kernel_fpu_begin();
+ chacha_dosimd(state, dst, src, todo, nrounds);
+ kernel_fpu_end();
+
+ bytes -= todo;
+ src += todo;
+ dst += todo;
+ } while (bytes);
+}
+EXPORT_SYMBOL(chacha_crypt_arch);
+
+static int chacha_simd_stream_xor(struct skcipher_request *req,
+ const struct chacha_ctx *ctx, const u8 *iv)
+{
+ u32 state[CHACHA_STATE_WORDS] __aligned(8);
+ struct skcipher_walk walk;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ chacha_init_generic(state, ctx->key, iv);
+
+ while (walk.nbytes > 0) {
+ unsigned int nbytes = walk.nbytes;
+
+ if (nbytes < walk.total)
+ nbytes = round_down(nbytes, walk.stride);
+
+ if (!static_branch_likely(&chacha_use_simd) ||
+ !crypto_simd_usable()) {
+ chacha_crypt_generic(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes,
+ ctx->nrounds);
+ } else {
+ kernel_fpu_begin();
+ chacha_dosimd(state, walk.dst.virt.addr,
+ walk.src.virt.addr, nbytes,
+ ctx->nrounds);
+ kernel_fpu_end();
+ }
+ err = skcipher_walk_done(&walk, walk.nbytes - nbytes);
+ }
+
+ return err;
+}
+
+static int chacha_simd(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return chacha_simd_stream_xor(req, ctx, req->iv);
+}
+
+static int xchacha_simd(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
+ u32 state[CHACHA_STATE_WORDS] __aligned(8);
+ struct chacha_ctx subctx;
+ u8 real_iv[16];
+
+ chacha_init_generic(state, ctx->key, req->iv);
+
+ if (req->cryptlen > CHACHA_BLOCK_SIZE && crypto_simd_usable()) {
+ kernel_fpu_begin();
+ hchacha_block_ssse3(state, subctx.key, ctx->nrounds);
+ kernel_fpu_end();
+ } else {
+ hchacha_block_generic(state, subctx.key, ctx->nrounds);
+ }
+ subctx.nrounds = ctx->nrounds;
+
+ memcpy(&real_iv[0], req->iv + 24, 8);
+ memcpy(&real_iv[8], req->iv + 16, 8);
+ return chacha_simd_stream_xor(req, &subctx, real_iv);
+}
+
+static struct skcipher_alg algs[] = {
+ {
+ .base.cra_name = "chacha20",
+ .base.cra_driver_name = "chacha20-simd",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = CHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = chacha_simd,
+ .decrypt = chacha_simd,
+ }, {
+ .base.cra_name = "xchacha20",
+ .base.cra_driver_name = "xchacha20-simd",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha20_setkey,
+ .encrypt = xchacha_simd,
+ .decrypt = xchacha_simd,
+ }, {
+ .base.cra_name = "xchacha12",
+ .base.cra_driver_name = "xchacha12-simd",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = 1,
+ .base.cra_ctxsize = sizeof(struct chacha_ctx),
+ .base.cra_module = THIS_MODULE,
+
+ .min_keysize = CHACHA_KEY_SIZE,
+ .max_keysize = CHACHA_KEY_SIZE,
+ .ivsize = XCHACHA_IV_SIZE,
+ .chunksize = CHACHA_BLOCK_SIZE,
+ .setkey = chacha12_setkey,
+ .encrypt = xchacha_simd,
+ .decrypt = xchacha_simd,
+ },
+};
+
+static int __init chacha_simd_mod_init(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_SSSE3))
+ return 0;
+
+ static_branch_enable(&chacha_use_simd);
+
+ if (boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
+ static_branch_enable(&chacha_use_avx2);
+
+ if (IS_ENABLED(CONFIG_AS_AVX512) &&
+ boot_cpu_has(X86_FEATURE_AVX512VL) &&
+ boot_cpu_has(X86_FEATURE_AVX512BW)) /* kmovq */
+ static_branch_enable(&chacha_use_avx512vl);
+ }
+ return IS_REACHABLE(CONFIG_CRYPTO_SKCIPHER) ?
+ crypto_register_skciphers(algs, ARRAY_SIZE(algs)) : 0;
+}
+
+static void __exit chacha_simd_mod_fini(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_SKCIPHER) && boot_cpu_has(X86_FEATURE_SSSE3))
+ crypto_unregister_skciphers(algs, ARRAY_SIZE(algs));
+}
+
+module_init(chacha_simd_mod_init);
+module_exit(chacha_simd_mod_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Martin Willi <martin@strongswan.org>");
+MODULE_DESCRIPTION("ChaCha and XChaCha stream ciphers (x64 SIMD accelerated)");
+MODULE_ALIAS_CRYPTO("chacha20");
+MODULE_ALIAS_CRYPTO("chacha20-simd");
+MODULE_ALIAS_CRYPTO("xchacha20");
+MODULE_ALIAS_CRYPTO("xchacha20-simd");
+MODULE_ALIAS_CRYPTO("xchacha12");
+MODULE_ALIAS_CRYPTO("xchacha12-simd");
diff --git a/arch/x86/crypto/crc32-pclmul_asm.S b/arch/x86/crypto/crc32-pclmul_asm.S
new file mode 100644
index 000000000000..5d31137e2c7d
--- /dev/null
+++ b/arch/x86/crypto/crc32-pclmul_asm.S
@@ -0,0 +1,218 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright 2012 Xyratex Technology Limited
+ *
+ * Using hardware provided PCLMULQDQ instruction to accelerate the CRC32
+ * calculation.
+ * CRC32 polynomial:0x04c11db7(BE)/0xEDB88320(LE)
+ * PCLMULQDQ is a new instruction in Intel SSE4.2, the reference can be found
+ * at:
+ * http://www.intel.com/products/processor/manuals/
+ * Intel(R) 64 and IA-32 Architectures Software Developer's Manual
+ * Volume 2B: Instruction Set Reference, N-Z
+ *
+ * Authors: Gregory Prestas <Gregory_Prestas@us.xyratex.com>
+ * Alexander Boyko <Alexander_Boyko@xyratex.com>
+ */
+
+#include <linux/linkage.h>
+
+
+.section .rodata
+.align 16
+/*
+ * [x4*128+32 mod P(x) << 32)]' << 1 = 0x154442bd4
+ * #define CONSTANT_R1 0x154442bd4LL
+ *
+ * [(x4*128-32 mod P(x) << 32)]' << 1 = 0x1c6e41596
+ * #define CONSTANT_R2 0x1c6e41596LL
+ */
+.Lconstant_R2R1:
+ .octa 0x00000001c6e415960000000154442bd4
+/*
+ * [(x128+32 mod P(x) << 32)]' << 1 = 0x1751997d0
+ * #define CONSTANT_R3 0x1751997d0LL
+ *
+ * [(x128-32 mod P(x) << 32)]' << 1 = 0x0ccaa009e
+ * #define CONSTANT_R4 0x0ccaa009eLL
+ */
+.Lconstant_R4R3:
+ .octa 0x00000000ccaa009e00000001751997d0
+/*
+ * [(x64 mod P(x) << 32)]' << 1 = 0x163cd6124
+ * #define CONSTANT_R5 0x163cd6124LL
+ */
+.Lconstant_R5:
+ .octa 0x00000000000000000000000163cd6124
+.Lconstant_mask32:
+ .octa 0x000000000000000000000000FFFFFFFF
+/*
+ * #define CRCPOLY_TRUE_LE_FULL 0x1DB710641LL
+ *
+ * Barrett Reduction constant (u64`) = u` = (x**64 / P(x))` = 0x1F7011641LL
+ * #define CONSTANT_RU 0x1F7011641LL
+ */
+.Lconstant_RUpoly:
+ .octa 0x00000001F701164100000001DB710641
+
+#define CONSTANT %xmm0
+
+#ifdef __x86_64__
+#define BUF %rdi
+#define LEN %rsi
+#define CRC %edx
+#else
+#define BUF %eax
+#define LEN %edx
+#define CRC %ecx
+#endif
+
+
+
+.text
+/**
+ * Calculate crc32
+ * BUF - buffer (16 bytes aligned)
+ * LEN - sizeof buffer (16 bytes aligned), LEN should be grater than 63
+ * CRC - initial crc32
+ * return %eax crc32
+ * uint crc32_pclmul_le_16(unsigned char const *buffer,
+ * size_t len, uint crc32)
+ */
+
+SYM_FUNC_START(crc32_pclmul_le_16) /* buffer and buffer size are 16 bytes aligned */
+ movdqa (BUF), %xmm1
+ movdqa 0x10(BUF), %xmm2
+ movdqa 0x20(BUF), %xmm3
+ movdqa 0x30(BUF), %xmm4
+ movd CRC, CONSTANT
+ pxor CONSTANT, %xmm1
+ sub $0x40, LEN
+ add $0x40, BUF
+ cmp $0x40, LEN
+ jb .Lless_64
+
+#ifdef __x86_64__
+ movdqa .Lconstant_R2R1(%rip), CONSTANT
+#else
+ movdqa .Lconstant_R2R1, CONSTANT
+#endif
+
+.Lloop_64:/* 64 bytes Full cache line folding */
+ prefetchnta 0x40(BUF)
+ movdqa %xmm1, %xmm5
+ movdqa %xmm2, %xmm6
+ movdqa %xmm3, %xmm7
+#ifdef __x86_64__
+ movdqa %xmm4, %xmm8
+#endif
+ pclmulqdq $0x00, CONSTANT, %xmm1
+ pclmulqdq $0x00, CONSTANT, %xmm2
+ pclmulqdq $0x00, CONSTANT, %xmm3
+#ifdef __x86_64__
+ pclmulqdq $0x00, CONSTANT, %xmm4
+#endif
+ pclmulqdq $0x11, CONSTANT, %xmm5
+ pclmulqdq $0x11, CONSTANT, %xmm6
+ pclmulqdq $0x11, CONSTANT, %xmm7
+#ifdef __x86_64__
+ pclmulqdq $0x11, CONSTANT, %xmm8
+#endif
+ pxor %xmm5, %xmm1
+ pxor %xmm6, %xmm2
+ pxor %xmm7, %xmm3
+#ifdef __x86_64__
+ pxor %xmm8, %xmm4
+#else
+ /* xmm8 unsupported for x32 */
+ movdqa %xmm4, %xmm5
+ pclmulqdq $0x00, CONSTANT, %xmm4
+ pclmulqdq $0x11, CONSTANT, %xmm5
+ pxor %xmm5, %xmm4
+#endif
+
+ pxor (BUF), %xmm1
+ pxor 0x10(BUF), %xmm2
+ pxor 0x20(BUF), %xmm3
+ pxor 0x30(BUF), %xmm4
+
+ sub $0x40, LEN
+ add $0x40, BUF
+ cmp $0x40, LEN
+ jge .Lloop_64
+.Lless_64:/* Folding cache line into 128bit */
+#ifdef __x86_64__
+ movdqa .Lconstant_R4R3(%rip), CONSTANT
+#else
+ movdqa .Lconstant_R4R3, CONSTANT
+#endif
+ prefetchnta (BUF)
+
+ movdqa %xmm1, %xmm5
+ pclmulqdq $0x00, CONSTANT, %xmm1
+ pclmulqdq $0x11, CONSTANT, %xmm5
+ pxor %xmm5, %xmm1
+ pxor %xmm2, %xmm1
+
+ movdqa %xmm1, %xmm5
+ pclmulqdq $0x00, CONSTANT, %xmm1
+ pclmulqdq $0x11, CONSTANT, %xmm5
+ pxor %xmm5, %xmm1
+ pxor %xmm3, %xmm1
+
+ movdqa %xmm1, %xmm5
+ pclmulqdq $0x00, CONSTANT, %xmm1
+ pclmulqdq $0x11, CONSTANT, %xmm5
+ pxor %xmm5, %xmm1
+ pxor %xmm4, %xmm1
+
+ cmp $0x10, LEN
+ jb .Lfold_64
+.Lloop_16:/* Folding rest buffer into 128bit */
+ movdqa %xmm1, %xmm5
+ pclmulqdq $0x00, CONSTANT, %xmm1
+ pclmulqdq $0x11, CONSTANT, %xmm5
+ pxor %xmm5, %xmm1
+ pxor (BUF), %xmm1
+ sub $0x10, LEN
+ add $0x10, BUF
+ cmp $0x10, LEN
+ jge .Lloop_16
+
+.Lfold_64:
+ /* perform the last 64 bit fold, also adds 32 zeroes
+ * to the input stream */
+ pclmulqdq $0x01, %xmm1, CONSTANT /* R4 * xmm1.low */
+ psrldq $0x08, %xmm1
+ pxor CONSTANT, %xmm1
+
+ /* final 32-bit fold */
+ movdqa %xmm1, %xmm2
+#ifdef __x86_64__
+ movdqa .Lconstant_R5(%rip), CONSTANT
+ movdqa .Lconstant_mask32(%rip), %xmm3
+#else
+ movdqa .Lconstant_R5, CONSTANT
+ movdqa .Lconstant_mask32, %xmm3
+#endif
+ psrldq $0x04, %xmm2
+ pand %xmm3, %xmm1
+ pclmulqdq $0x00, CONSTANT, %xmm1
+ pxor %xmm2, %xmm1
+
+ /* Finish up with the bit-reversed barrett reduction 64 ==> 32 bits */
+#ifdef __x86_64__
+ movdqa .Lconstant_RUpoly(%rip), CONSTANT
+#else
+ movdqa .Lconstant_RUpoly, CONSTANT
+#endif
+ movdqa %xmm1, %xmm2
+ pand %xmm3, %xmm1
+ pclmulqdq $0x10, CONSTANT, %xmm1
+ pand %xmm3, %xmm1
+ pclmulqdq $0x00, CONSTANT, %xmm1
+ pxor %xmm2, %xmm1
+ pextrd $0x01, %xmm1, %eax
+
+ RET
+SYM_FUNC_END(crc32_pclmul_le_16)
diff --git a/arch/x86/crypto/crc32-pclmul_glue.c b/arch/x86/crypto/crc32-pclmul_glue.c
new file mode 100644
index 000000000000..98cf3b4e4c9f
--- /dev/null
+++ b/arch/x86/crypto/crc32-pclmul_glue.c
@@ -0,0 +1,201 @@
+/* GPL HEADER START
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 only,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License version 2 for more details (a copy is included
+ * in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License
+ * version 2 along with this program; If not, see http://www.gnu.org/licenses
+ *
+ * Please visit http://www.xyratex.com/contact if you need additional
+ * information or have any questions.
+ *
+ * GPL HEADER END
+ */
+
+/*
+ * Copyright 2012 Xyratex Technology Limited
+ *
+ * Wrappers for kernel crypto shash api to pclmulqdq crc32 implementation.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/crc32.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
+
+#include <asm/cpufeatures.h>
+#include <asm/cpu_device_id.h>
+#include <asm/simd.h>
+
+#define CHKSUM_BLOCK_SIZE 1
+#define CHKSUM_DIGEST_SIZE 4
+
+#define PCLMUL_MIN_LEN 64L /* minimum size of buffer
+ * for crc32_pclmul_le_16 */
+#define SCALE_F 16L /* size of xmm register */
+#define SCALE_F_MASK (SCALE_F - 1)
+
+u32 crc32_pclmul_le_16(unsigned char const *buffer, size_t len, u32 crc32);
+
+static u32 __attribute__((pure))
+ crc32_pclmul_le(u32 crc, unsigned char const *p, size_t len)
+{
+ unsigned int iquotient;
+ unsigned int iremainder;
+ unsigned int prealign;
+
+ if (len < PCLMUL_MIN_LEN + SCALE_F_MASK || !crypto_simd_usable())
+ return crc32_le(crc, p, len);
+
+ if ((long)p & SCALE_F_MASK) {
+ /* align p to 16 byte */
+ prealign = SCALE_F - ((long)p & SCALE_F_MASK);
+
+ crc = crc32_le(crc, p, prealign);
+ len -= prealign;
+ p = (unsigned char *)(((unsigned long)p + SCALE_F_MASK) &
+ ~SCALE_F_MASK);
+ }
+ iquotient = len & (~SCALE_F_MASK);
+ iremainder = len & SCALE_F_MASK;
+
+ kernel_fpu_begin();
+ crc = crc32_pclmul_le_16(p, iquotient, crc);
+ kernel_fpu_end();
+
+ if (iremainder)
+ crc = crc32_le(crc, p + iquotient, iremainder);
+
+ return crc;
+}
+
+static int crc32_pclmul_cra_init(struct crypto_tfm *tfm)
+{
+ u32 *key = crypto_tfm_ctx(tfm);
+
+ *key = 0;
+
+ return 0;
+}
+
+static int crc32_pclmul_setkey(struct crypto_shash *hash, const u8 *key,
+ unsigned int keylen)
+{
+ u32 *mctx = crypto_shash_ctx(hash);
+
+ if (keylen != sizeof(u32))
+ return -EINVAL;
+ *mctx = le32_to_cpup((__le32 *)key);
+ return 0;
+}
+
+static int crc32_pclmul_init(struct shash_desc *desc)
+{
+ u32 *mctx = crypto_shash_ctx(desc->tfm);
+ u32 *crcp = shash_desc_ctx(desc);
+
+ *crcp = *mctx;
+
+ return 0;
+}
+
+static int crc32_pclmul_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ u32 *crcp = shash_desc_ctx(desc);
+
+ *crcp = crc32_pclmul_le(*crcp, data, len);
+ return 0;
+}
+
+/* No final XOR 0xFFFFFFFF, like crc32_le */
+static int __crc32_pclmul_finup(u32 *crcp, const u8 *data, unsigned int len,
+ u8 *out)
+{
+ *(__le32 *)out = cpu_to_le32(crc32_pclmul_le(*crcp, data, len));
+ return 0;
+}
+
+static int crc32_pclmul_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return __crc32_pclmul_finup(shash_desc_ctx(desc), data, len, out);
+}
+
+static int crc32_pclmul_final(struct shash_desc *desc, u8 *out)
+{
+ u32 *crcp = shash_desc_ctx(desc);
+
+ *(__le32 *)out = cpu_to_le32p(crcp);
+ return 0;
+}
+
+static int crc32_pclmul_digest(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return __crc32_pclmul_finup(crypto_shash_ctx(desc->tfm), data, len,
+ out);
+}
+
+static struct shash_alg alg = {
+ .setkey = crc32_pclmul_setkey,
+ .init = crc32_pclmul_init,
+ .update = crc32_pclmul_update,
+ .final = crc32_pclmul_final,
+ .finup = crc32_pclmul_finup,
+ .digest = crc32_pclmul_digest,
+ .descsize = sizeof(u32),
+ .digestsize = CHKSUM_DIGEST_SIZE,
+ .base = {
+ .cra_name = "crc32",
+ .cra_driver_name = "crc32-pclmul",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
+ .cra_blocksize = CHKSUM_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(u32),
+ .cra_module = THIS_MODULE,
+ .cra_init = crc32_pclmul_cra_init,
+ }
+};
+
+static const struct x86_cpu_id crc32pclmul_cpu_id[] = {
+ X86_MATCH_FEATURE(X86_FEATURE_PCLMULQDQ, NULL),
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, crc32pclmul_cpu_id);
+
+
+static int __init crc32_pclmul_mod_init(void)
+{
+
+ if (!x86_match_cpu(crc32pclmul_cpu_id)) {
+ pr_info("PCLMULQDQ-NI instructions are not detected.\n");
+ return -ENODEV;
+ }
+ return crypto_register_shash(&alg);
+}
+
+static void __exit crc32_pclmul_mod_fini(void)
+{
+ crypto_unregister_shash(&alg);
+}
+
+module_init(crc32_pclmul_mod_init);
+module_exit(crc32_pclmul_mod_fini);
+
+MODULE_AUTHOR("Alexander Boyko <alexander_boyko@xyratex.com>");
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS_CRYPTO("crc32");
+MODULE_ALIAS_CRYPTO("crc32-pclmul");
diff --git a/arch/x86/crypto/crc32c-intel.c b/arch/x86/crypto/crc32c-intel_glue.c
index b9d00261703c..feccb5254c7e 100644
--- a/arch/x86/crypto/crc32c-intel.c
+++ b/arch/x86/crypto/crc32c-intel_glue.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Using hardware provided CRC32 instruction to accelerate the CRC32 disposal.
* CRC32C polynomial:0x1EDC6F41(BE)/0x82F63B78(LE)
@@ -9,28 +10,17 @@
* Copyright (C) 2008 Intel Corporation
* Authors: Austin Zhang <austin_zhang@linux.intel.com>
* Kent Liu <kent.liu@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/kernel.h>
#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
-#include <asm/cpufeature.h>
+#include <asm/cpufeatures.h>
+#include <asm/cpu_device_id.h>
+#include <asm/simd.h>
#define CHKSUM_BLOCK_SIZE 1
#define CHKSUM_DIGEST_SIZE 4
@@ -38,19 +28,28 @@
#define SCALE_F sizeof(unsigned long)
#ifdef CONFIG_X86_64
-#define REX_PRE "0x48, "
+#define CRC32_INST "crc32q %1, %q0"
#else
-#define REX_PRE
+#define CRC32_INST "crc32l %1, %0"
#endif
+#ifdef CONFIG_X86_64
+/*
+ * use carryless multiply version of crc32c when buffer
+ * size is >= 512 to account
+ * for fpu state save/restore overhead.
+ */
+#define CRC32C_PCL_BREAKEVEN 512
+
+asmlinkage unsigned int crc_pcl(const u8 *buffer, int len,
+ unsigned int crc_init);
+#endif /* CONFIG_X86_64 */
+
static u32 crc32c_intel_le_hw_byte(u32 crc, unsigned char const *data, size_t length)
{
while (length--) {
- __asm__ __volatile__(
- ".byte 0xf2, 0xf, 0x38, 0xf0, 0xf1"
- :"=S"(crc)
- :"0"(crc), "c"(*data)
- );
+ asm("crc32b %1, %0"
+ : "+r" (crc) : "rm" (*data));
data++;
}
@@ -64,11 +63,8 @@ static u32 __pure crc32c_intel_le_hw(u32 crc, unsigned char const *p, size_t len
unsigned long *ptmp = (unsigned long *)p;
while (iquotient--) {
- __asm__ __volatile__(
- ".byte 0xf2, " REX_PRE "0xf, 0x38, 0xf1, 0xf1;"
- :"=S"(crc)
- :"0"(crc), "c"(*ptmp)
- );
+ asm(CRC32_INST
+ : "+r" (crc) : "rm" (*ptmp));
ptmp++;
}
@@ -89,10 +85,8 @@ static int crc32c_intel_setkey(struct crypto_shash *hash, const u8 *key,
{
u32 *mctx = crypto_shash_ctx(hash);
- if (keylen != sizeof(u32)) {
- crypto_shash_set_flags(hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != sizeof(u32))
return -EINVAL;
- }
*mctx = le32_to_cpup((__le32 *)key);
return 0;
}
@@ -153,6 +147,52 @@ static int crc32c_intel_cra_init(struct crypto_tfm *tfm)
return 0;
}
+#ifdef CONFIG_X86_64
+static int crc32c_pcl_intel_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ u32 *crcp = shash_desc_ctx(desc);
+
+ /*
+ * use faster PCL version if datasize is large enough to
+ * overcome kernel fpu state save/restore overhead
+ */
+ if (len >= CRC32C_PCL_BREAKEVEN && crypto_simd_usable()) {
+ kernel_fpu_begin();
+ *crcp = crc_pcl(data, len, *crcp);
+ kernel_fpu_end();
+ } else
+ *crcp = crc32c_intel_le_hw(*crcp, data, len);
+ return 0;
+}
+
+static int __crc32c_pcl_intel_finup(u32 *crcp, const u8 *data, unsigned int len,
+ u8 *out)
+{
+ if (len >= CRC32C_PCL_BREAKEVEN && crypto_simd_usable()) {
+ kernel_fpu_begin();
+ *(__le32 *)out = ~cpu_to_le32(crc_pcl(data, len, *crcp));
+ kernel_fpu_end();
+ } else
+ *(__le32 *)out =
+ ~cpu_to_le32(crc32c_intel_le_hw(*crcp, data, len));
+ return 0;
+}
+
+static int crc32c_pcl_intel_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return __crc32c_pcl_intel_finup(shash_desc_ctx(desc), data, len, out);
+}
+
+static int crc32c_pcl_intel_digest(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return __crc32c_pcl_intel_finup(crypto_shash_ctx(desc->tfm), data, len,
+ out);
+}
+#endif /* CONFIG_X86_64 */
+
static struct shash_alg alg = {
.setkey = crc32c_intel_setkey,
.init = crc32c_intel_init,
@@ -166,6 +206,7 @@ static struct shash_alg alg = {
.cra_name = "crc32c",
.cra_driver_name = "crc32c-intel",
.cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_OPTIONAL_KEY,
.cra_blocksize = CHKSUM_BLOCK_SIZE,
.cra_ctxsize = sizeof(u32),
.cra_module = THIS_MODULE,
@@ -173,13 +214,24 @@ static struct shash_alg alg = {
}
};
+static const struct x86_cpu_id crc32c_cpu_id[] = {
+ X86_MATCH_FEATURE(X86_FEATURE_XMM4_2, NULL),
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, crc32c_cpu_id);
static int __init crc32c_intel_mod_init(void)
{
- if (cpu_has_xmm4_2)
- return crypto_register_shash(&alg);
- else
+ if (!x86_match_cpu(crc32c_cpu_id))
return -ENODEV;
+#ifdef CONFIG_X86_64
+ if (boot_cpu_has(X86_FEATURE_PCLMULQDQ)) {
+ alg.update = crc32c_pcl_intel_update;
+ alg.finup = crc32c_pcl_intel_finup;
+ alg.digest = crc32c_pcl_intel_digest;
+ }
+#endif
+ return crypto_register_shash(&alg);
}
static void __exit crc32c_intel_mod_fini(void)
@@ -194,5 +246,5 @@ MODULE_AUTHOR("Austin Zhang <austin.zhang@intel.com>, Kent Liu <kent.liu@intel.c
MODULE_DESCRIPTION("CRC32c (Castagnoli) optimization using Intel Hardware.");
MODULE_LICENSE("GPL");
-MODULE_ALIAS("crc32c");
-MODULE_ALIAS("crc32c-intel");
+MODULE_ALIAS_CRYPTO("crc32c");
+MODULE_ALIAS_CRYPTO("crc32c-intel");
diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
new file mode 100644
index 000000000000..81ce0f4db555
--- /dev/null
+++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
@@ -0,0 +1,463 @@
+/*
+ * Implement fast CRC32C with PCLMULQDQ instructions. (x86_64)
+ *
+ * The white papers on CRC32C calculations with PCLMULQDQ instruction can be
+ * downloaded from:
+ * http://www.intel.com/content/dam/www/public/us/en/documents/white-papers/crc-iscsi-polynomial-crc32-instruction-paper.pdf
+ * http://www.intel.com/content/dam/www/public/us/en/documents/white-papers/fast-crc-computation-paper.pdf
+ *
+ * Copyright (C) 2012 Intel Corporation.
+ *
+ * Authors:
+ * Wajdi Feghali <wajdi.k.feghali@intel.com>
+ * James Guilford <james.guilford@intel.com>
+ * David Cote <david.m.cote@intel.com>
+ * Tim Chen <tim.c.chen@linux.intel.com>
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/linkage.h>
+#include <asm/nospec-branch.h>
+
+## ISCSI CRC 32 Implementation with crc32 and pclmulqdq Instruction
+
+.macro LABEL prefix n
+.L\prefix\n\():
+.endm
+
+.macro JMPTBL_ENTRY i
+.quad .Lcrc_\i
+.endm
+
+.macro JNC_LESS_THAN j
+ jnc .Lless_than_\j
+.endm
+
+# Define threshold where buffers are considered "small" and routed to more
+# efficient "by-1" code. This "by-1" code only handles up to 255 bytes, so
+# SMALL_SIZE can be no larger than 255.
+
+#define SMALL_SIZE 200
+
+.if (SMALL_SIZE > 255)
+.error "SMALL_ SIZE must be < 256"
+.endif
+
+# unsigned int crc_pcl(u8 *buffer, int len, unsigned int crc_init);
+
+.text
+SYM_FUNC_START(crc_pcl)
+#define bufp rdi
+#define bufp_dw %edi
+#define bufp_w %di
+#define bufp_b %dil
+#define bufptmp %rcx
+#define block_0 %rcx
+#define block_1 %rdx
+#define block_2 %r11
+#define len %rsi
+#define len_dw %esi
+#define len_w %si
+#define len_b %sil
+#define crc_init_arg %rdx
+#define tmp %rbx
+#define crc_init %r8
+#define crc_init_dw %r8d
+#define crc1 %r9
+#define crc2 %r10
+
+ pushq %rbx
+ pushq %rdi
+ pushq %rsi
+
+ ## Move crc_init for Linux to a different
+ mov crc_init_arg, crc_init
+
+ ################################################################
+ ## 1) ALIGN:
+ ################################################################
+
+ mov %bufp, bufptmp # rdi = *buf
+ neg %bufp
+ and $7, %bufp # calculate the unalignment amount of
+ # the address
+ je .Lproc_block # Skip if aligned
+
+ ## If len is less than 8 and we're unaligned, we need to jump
+ ## to special code to avoid reading beyond the end of the buffer
+ cmp $8, len
+ jae .Ldo_align
+ # less_than_8 expects length in upper 3 bits of len_dw
+ # less_than_8_post_shl1 expects length = carryflag * 8 + len_dw[31:30]
+ shl $32-3+1, len_dw
+ jmp .Lless_than_8_post_shl1
+
+.Ldo_align:
+ #### Calculate CRC of unaligned bytes of the buffer (if any)
+ movq (bufptmp), tmp # load a quadward from the buffer
+ add %bufp, bufptmp # align buffer pointer for quadword
+ # processing
+ sub %bufp, len # update buffer length
+.Lalign_loop:
+ crc32b %bl, crc_init_dw # compute crc32 of 1-byte
+ shr $8, tmp # get next byte
+ dec %bufp
+ jne .Lalign_loop
+
+.Lproc_block:
+
+ ################################################################
+ ## 2) PROCESS BLOCKS:
+ ################################################################
+
+ ## compute num of bytes to be processed
+ movq len, tmp # save num bytes in tmp
+
+ cmpq $128*24, len
+ jae .Lfull_block
+
+.Lcontinue_block:
+ cmpq $SMALL_SIZE, len
+ jb .Lsmall
+
+ ## len < 128*24
+ movq $2731, %rax # 2731 = ceil(2^16 / 24)
+ mul len_dw
+ shrq $16, %rax
+
+ ## eax contains floor(bytes / 24) = num 24-byte chunks to do
+
+ ## process rax 24-byte chunks (128 >= rax >= 0)
+
+ ## compute end address of each block
+ ## block 0 (base addr + RAX * 8)
+ ## block 1 (base addr + RAX * 16)
+ ## block 2 (base addr + RAX * 24)
+ lea (bufptmp, %rax, 8), block_0
+ lea (block_0, %rax, 8), block_1
+ lea (block_1, %rax, 8), block_2
+
+ xor crc1, crc1
+ xor crc2, crc2
+
+ ## branch into array
+ leaq jump_table(%rip), %bufp
+ mov (%bufp,%rax,8), %bufp
+ JMP_NOSPEC bufp
+
+ ################################################################
+ ## 2a) PROCESS FULL BLOCKS:
+ ################################################################
+.Lfull_block:
+ movl $128,%eax
+ lea 128*8*2(block_0), block_1
+ lea 128*8*3(block_0), block_2
+ add $128*8*1, block_0
+
+ xor crc1,crc1
+ xor crc2,crc2
+
+ # Fall thruogh into top of crc array (crc_128)
+
+ ################################################################
+ ## 3) CRC Array:
+ ################################################################
+
+ i=128
+.rept 128-1
+.altmacro
+LABEL crc_ %i
+.noaltmacro
+ ENDBR
+ crc32q -i*8(block_0), crc_init
+ crc32q -i*8(block_1), crc1
+ crc32q -i*8(block_2), crc2
+ i=(i-1)
+.endr
+
+.altmacro
+LABEL crc_ %i
+.noaltmacro
+ ENDBR
+ crc32q -i*8(block_0), crc_init
+ crc32q -i*8(block_1), crc1
+# SKIP crc32 -i*8(block_2), crc2 ; Don't do this one yet
+
+ mov block_2, block_0
+
+ ################################################################
+ ## 4) Combine three results:
+ ################################################################
+
+ lea (K_table-8)(%rip), %bufp # first entry is for idx 1
+ shlq $3, %rax # rax *= 8
+ pmovzxdq (%bufp,%rax), %xmm0 # 2 consts: K1:K2
+ leal (%eax,%eax,2), %eax # rax *= 3 (total *24)
+ subq %rax, tmp # tmp -= rax*24
+
+ movq crc_init, %xmm1 # CRC for block 1
+ pclmulqdq $0x00, %xmm0, %xmm1 # Multiply by K2
+
+ movq crc1, %xmm2 # CRC for block 2
+ pclmulqdq $0x10, %xmm0, %xmm2 # Multiply by K1
+
+ pxor %xmm2,%xmm1
+ movq %xmm1, %rax
+ xor -i*8(block_2), %rax
+ mov crc2, crc_init
+ crc32 %rax, crc_init
+
+ ################################################################
+ ## 5) Check for end:
+ ################################################################
+
+LABEL crc_ 0
+ ENDBR
+ mov tmp, len
+ cmp $128*24, tmp
+ jae .Lfull_block
+ cmp $24, tmp
+ jae .Lcontinue_block
+
+.Lless_than_24:
+ shl $32-4, len_dw # less_than_16 expects length
+ # in upper 4 bits of len_dw
+ jnc .Lless_than_16
+ crc32q (bufptmp), crc_init
+ crc32q 8(bufptmp), crc_init
+ jz .Ldo_return
+ add $16, bufptmp
+ # len is less than 8 if we got here
+ # less_than_8 expects length in upper 3 bits of len_dw
+ # less_than_8_post_shl1 expects length = carryflag * 8 + len_dw[31:30]
+ shl $2, len_dw
+ jmp .Lless_than_8_post_shl1
+
+ #######################################################################
+ ## 6) LESS THAN 256-bytes REMAIN AT THIS POINT (8-bits of len are full)
+ #######################################################################
+.Lsmall:
+ shl $32-8, len_dw # Prepare len_dw for less_than_256
+ j=256
+.rept 5 # j = {256, 128, 64, 32, 16}
+.altmacro
+LABEL less_than_ %j # less_than_j: Length should be in
+ # upper lg(j) bits of len_dw
+ j=(j/2)
+ shl $1, len_dw # Get next MSB
+ JNC_LESS_THAN %j
+.noaltmacro
+ i=0
+.rept (j/8)
+ crc32q i(bufptmp), crc_init # Compute crc32 of 8-byte data
+ i=i+8
+.endr
+ jz .Ldo_return # Return if remaining length is zero
+ add $j, bufptmp # Advance buf
+.endr
+
+.Lless_than_8: # Length should be stored in
+ # upper 3 bits of len_dw
+ shl $1, len_dw
+.Lless_than_8_post_shl1:
+ jnc .Lless_than_4
+ crc32l (bufptmp), crc_init_dw # CRC of 4 bytes
+ jz .Ldo_return # return if remaining data is zero
+ add $4, bufptmp
+.Lless_than_4: # Length should be stored in
+ # upper 2 bits of len_dw
+ shl $1, len_dw
+ jnc .Lless_than_2
+ crc32w (bufptmp), crc_init_dw # CRC of 2 bytes
+ jz .Ldo_return # return if remaining data is zero
+ add $2, bufptmp
+.Lless_than_2: # Length should be stored in the MSB
+ # of len_dw
+ shl $1, len_dw
+ jnc .Lless_than_1
+ crc32b (bufptmp), crc_init_dw # CRC of 1 byte
+.Lless_than_1: # Length should be zero
+.Ldo_return:
+ movq crc_init, %rax
+ popq %rsi
+ popq %rdi
+ popq %rbx
+ RET
+SYM_FUNC_END(crc_pcl)
+
+.section .rodata, "a", @progbits
+ ################################################################
+ ## jump table Table is 129 entries x 2 bytes each
+ ################################################################
+.align 4
+jump_table:
+ i=0
+.rept 129
+.altmacro
+JMPTBL_ENTRY %i
+.noaltmacro
+ i=i+1
+.endr
+
+
+ ################################################################
+ ## PCLMULQDQ tables
+ ## Table is 128 entries x 2 words (8 bytes) each
+ ################################################################
+.align 8
+K_table:
+ .long 0x493c7d27, 0x00000001
+ .long 0xba4fc28e, 0x493c7d27
+ .long 0xddc0152b, 0xf20c0dfe
+ .long 0x9e4addf8, 0xba4fc28e
+ .long 0x39d3b296, 0x3da6d0cb
+ .long 0x0715ce53, 0xddc0152b
+ .long 0x47db8317, 0x1c291d04
+ .long 0x0d3b6092, 0x9e4addf8
+ .long 0xc96cfdc0, 0x740eef02
+ .long 0x878a92a7, 0x39d3b296
+ .long 0xdaece73e, 0x083a6eec
+ .long 0xab7aff2a, 0x0715ce53
+ .long 0x2162d385, 0xc49f4f67
+ .long 0x83348832, 0x47db8317
+ .long 0x299847d5, 0x2ad91c30
+ .long 0xb9e02b86, 0x0d3b6092
+ .long 0x18b33a4e, 0x6992cea2
+ .long 0xb6dd949b, 0xc96cfdc0
+ .long 0x78d9ccb7, 0x7e908048
+ .long 0xbac2fd7b, 0x878a92a7
+ .long 0xa60ce07b, 0x1b3d8f29
+ .long 0xce7f39f4, 0xdaece73e
+ .long 0x61d82e56, 0xf1d0f55e
+ .long 0xd270f1a2, 0xab7aff2a
+ .long 0xc619809d, 0xa87ab8a8
+ .long 0x2b3cac5d, 0x2162d385
+ .long 0x65863b64, 0x8462d800
+ .long 0x1b03397f, 0x83348832
+ .long 0xebb883bd, 0x71d111a8
+ .long 0xb3e32c28, 0x299847d5
+ .long 0x064f7f26, 0xffd852c6
+ .long 0xdd7e3b0c, 0xb9e02b86
+ .long 0xf285651c, 0xdcb17aa4
+ .long 0x10746f3c, 0x18b33a4e
+ .long 0xc7a68855, 0xf37c5aee
+ .long 0x271d9844, 0xb6dd949b
+ .long 0x8e766a0c, 0x6051d5a2
+ .long 0x93a5f730, 0x78d9ccb7
+ .long 0x6cb08e5c, 0x18b0d4ff
+ .long 0x6b749fb2, 0xbac2fd7b
+ .long 0x1393e203, 0x21f3d99c
+ .long 0xcec3662e, 0xa60ce07b
+ .long 0x96c515bb, 0x8f158014
+ .long 0xe6fc4e6a, 0xce7f39f4
+ .long 0x8227bb8a, 0xa00457f7
+ .long 0xb0cd4768, 0x61d82e56
+ .long 0x39c7ff35, 0x8d6d2c43
+ .long 0xd7a4825c, 0xd270f1a2
+ .long 0x0ab3844b, 0x00ac29cf
+ .long 0x0167d312, 0xc619809d
+ .long 0xf6076544, 0xe9adf796
+ .long 0x26f6a60a, 0x2b3cac5d
+ .long 0xa741c1bf, 0x96638b34
+ .long 0x98d8d9cb, 0x65863b64
+ .long 0x49c3cc9c, 0xe0e9f351
+ .long 0x68bce87a, 0x1b03397f
+ .long 0x57a3d037, 0x9af01f2d
+ .long 0x6956fc3b, 0xebb883bd
+ .long 0x42d98888, 0x2cff42cf
+ .long 0x3771e98f, 0xb3e32c28
+ .long 0xb42ae3d9, 0x88f25a3a
+ .long 0x2178513a, 0x064f7f26
+ .long 0xe0ac139e, 0x4e36f0b0
+ .long 0x170076fa, 0xdd7e3b0c
+ .long 0x444dd413, 0xbd6f81f8
+ .long 0x6f345e45, 0xf285651c
+ .long 0x41d17b64, 0x91c9bd4b
+ .long 0xff0dba97, 0x10746f3c
+ .long 0xa2b73df1, 0x885f087b
+ .long 0xf872e54c, 0xc7a68855
+ .long 0x1e41e9fc, 0x4c144932
+ .long 0x86d8e4d2, 0x271d9844
+ .long 0x651bd98b, 0x52148f02
+ .long 0x5bb8f1bc, 0x8e766a0c
+ .long 0xa90fd27a, 0xa3c6f37a
+ .long 0xb3af077a, 0x93a5f730
+ .long 0x4984d782, 0xd7c0557f
+ .long 0xca6ef3ac, 0x6cb08e5c
+ .long 0x234e0b26, 0x63ded06a
+ .long 0xdd66cbbb, 0x6b749fb2
+ .long 0x4597456a, 0x4d56973c
+ .long 0xe9e28eb4, 0x1393e203
+ .long 0x7b3ff57a, 0x9669c9df
+ .long 0xc9c8b782, 0xcec3662e
+ .long 0x3f70cc6f, 0xe417f38a
+ .long 0x93e106a4, 0x96c515bb
+ .long 0x62ec6c6d, 0x4b9e0f71
+ .long 0xd813b325, 0xe6fc4e6a
+ .long 0x0df04680, 0xd104b8fc
+ .long 0x2342001e, 0x8227bb8a
+ .long 0x0a2a8d7e, 0x5b397730
+ .long 0x6d9a4957, 0xb0cd4768
+ .long 0xe8b6368b, 0xe78eb416
+ .long 0xd2c3ed1a, 0x39c7ff35
+ .long 0x995a5724, 0x61ff0e01
+ .long 0x9ef68d35, 0xd7a4825c
+ .long 0x0c139b31, 0x8d96551c
+ .long 0xf2271e60, 0x0ab3844b
+ .long 0x0b0bf8ca, 0x0bf80dd2
+ .long 0x2664fd8b, 0x0167d312
+ .long 0xed64812d, 0x8821abed
+ .long 0x02ee03b2, 0xf6076544
+ .long 0x8604ae0f, 0x6a45d2b2
+ .long 0x363bd6b3, 0x26f6a60a
+ .long 0x135c83fd, 0xd8d26619
+ .long 0x5fabe670, 0xa741c1bf
+ .long 0x35ec3279, 0xde87806c
+ .long 0x00bcf5f6, 0x98d8d9cb
+ .long 0x8ae00689, 0x14338754
+ .long 0x17f27698, 0x49c3cc9c
+ .long 0x58ca5f00, 0x5bd2011f
+ .long 0xaa7c7ad5, 0x68bce87a
+ .long 0xb5cfca28, 0xdd07448e
+ .long 0xded288f8, 0x57a3d037
+ .long 0x59f229bc, 0xdde8f5b9
+ .long 0x6d390dec, 0x6956fc3b
+ .long 0x37170390, 0xa3e3e02c
+ .long 0x6353c1cc, 0x42d98888
+ .long 0xc4584f5c, 0xd73c7bea
+ .long 0xf48642e9, 0x3771e98f
+ .long 0x531377e2, 0x80ff0093
+ .long 0xdd35bc8d, 0xb42ae3d9
+ .long 0xb25b29f2, 0x8fe4c34d
+ .long 0x9a5ede41, 0x2178513a
+ .long 0xa563905d, 0xdf99fc11
+ .long 0x45cddf4e, 0xe0ac139e
+ .long 0xacfa3103, 0x6c23e841
+ .long 0xa51b6135, 0x170076fa
diff --git a/arch/x86/crypto/crct10dif-pcl-asm_64.S b/arch/x86/crypto/crct10dif-pcl-asm_64.S
new file mode 100644
index 000000000000..5286db5b8165
--- /dev/null
+++ b/arch/x86/crypto/crct10dif-pcl-asm_64.S
@@ -0,0 +1,332 @@
+########################################################################
+# Implement fast CRC-T10DIF computation with SSE and PCLMULQDQ instructions
+#
+# Copyright (c) 2013, Intel Corporation
+#
+# Authors:
+# Erdinc Ozturk <erdinc.ozturk@intel.com>
+# Vinodh Gopal <vinodh.gopal@intel.com>
+# James Guilford <james.guilford@intel.com>
+# Tim Chen <tim.c.chen@linux.intel.com>
+#
+# This software is available to you under a choice of one of two
+# licenses. You may choose to be licensed under the terms of the GNU
+# General Public License (GPL) Version 2, available from the file
+# COPYING in the main directory of this source tree, or the
+# OpenIB.org BSD license below:
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the
+# distribution.
+#
+# * Neither the name of the Intel Corporation nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+#
+# THIS SOFTWARE IS PROVIDED BY INTEL CORPORATION ""AS IS"" AND ANY
+# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL INTEL CORPORATION OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Reference paper titled "Fast CRC Computation for Generic
+# Polynomials Using PCLMULQDQ Instruction"
+# URL: http://www.intel.com/content/dam/www/public/us/en/documents
+# /white-papers/fast-crc-computation-generic-polynomials-pclmulqdq-paper.pdf
+#
+
+#include <linux/linkage.h>
+
+.text
+
+#define init_crc %edi
+#define buf %rsi
+#define len %rdx
+
+#define FOLD_CONSTS %xmm10
+#define BSWAP_MASK %xmm11
+
+# Fold reg1, reg2 into the next 32 data bytes, storing the result back into
+# reg1, reg2.
+.macro fold_32_bytes offset, reg1, reg2
+ movdqu \offset(buf), %xmm9
+ movdqu \offset+16(buf), %xmm12
+ pshufb BSWAP_MASK, %xmm9
+ pshufb BSWAP_MASK, %xmm12
+ movdqa \reg1, %xmm8
+ movdqa \reg2, %xmm13
+ pclmulqdq $0x00, FOLD_CONSTS, \reg1
+ pclmulqdq $0x11, FOLD_CONSTS, %xmm8
+ pclmulqdq $0x00, FOLD_CONSTS, \reg2
+ pclmulqdq $0x11, FOLD_CONSTS, %xmm13
+ pxor %xmm9 , \reg1
+ xorps %xmm8 , \reg1
+ pxor %xmm12, \reg2
+ xorps %xmm13, \reg2
+.endm
+
+# Fold src_reg into dst_reg.
+.macro fold_16_bytes src_reg, dst_reg
+ movdqa \src_reg, %xmm8
+ pclmulqdq $0x11, FOLD_CONSTS, \src_reg
+ pclmulqdq $0x00, FOLD_CONSTS, %xmm8
+ pxor %xmm8, \dst_reg
+ xorps \src_reg, \dst_reg
+.endm
+
+#
+# u16 crc_t10dif_pcl(u16 init_crc, const *u8 buf, size_t len);
+#
+# Assumes len >= 16.
+#
+SYM_FUNC_START(crc_t10dif_pcl)
+
+ movdqa .Lbswap_mask(%rip), BSWAP_MASK
+
+ # For sizes less than 256 bytes, we can't fold 128 bytes at a time.
+ cmp $256, len
+ jl .Lless_than_256_bytes
+
+ # Load the first 128 data bytes. Byte swapping is necessary to make the
+ # bit order match the polynomial coefficient order.
+ movdqu 16*0(buf), %xmm0
+ movdqu 16*1(buf), %xmm1
+ movdqu 16*2(buf), %xmm2
+ movdqu 16*3(buf), %xmm3
+ movdqu 16*4(buf), %xmm4
+ movdqu 16*5(buf), %xmm5
+ movdqu 16*6(buf), %xmm6
+ movdqu 16*7(buf), %xmm7
+ add $128, buf
+ pshufb BSWAP_MASK, %xmm0
+ pshufb BSWAP_MASK, %xmm1
+ pshufb BSWAP_MASK, %xmm2
+ pshufb BSWAP_MASK, %xmm3
+ pshufb BSWAP_MASK, %xmm4
+ pshufb BSWAP_MASK, %xmm5
+ pshufb BSWAP_MASK, %xmm6
+ pshufb BSWAP_MASK, %xmm7
+
+ # XOR the first 16 data *bits* with the initial CRC value.
+ pxor %xmm8, %xmm8
+ pinsrw $7, init_crc, %xmm8
+ pxor %xmm8, %xmm0
+
+ movdqa .Lfold_across_128_bytes_consts(%rip), FOLD_CONSTS
+
+ # Subtract 128 for the 128 data bytes just consumed. Subtract another
+ # 128 to simplify the termination condition of the following loop.
+ sub $256, len
+
+ # While >= 128 data bytes remain (not counting xmm0-7), fold the 128
+ # bytes xmm0-7 into them, storing the result back into xmm0-7.
+.Lfold_128_bytes_loop:
+ fold_32_bytes 0, %xmm0, %xmm1
+ fold_32_bytes 32, %xmm2, %xmm3
+ fold_32_bytes 64, %xmm4, %xmm5
+ fold_32_bytes 96, %xmm6, %xmm7
+ add $128, buf
+ sub $128, len
+ jge .Lfold_128_bytes_loop
+
+ # Now fold the 112 bytes in xmm0-xmm6 into the 16 bytes in xmm7.
+
+ # Fold across 64 bytes.
+ movdqa .Lfold_across_64_bytes_consts(%rip), FOLD_CONSTS
+ fold_16_bytes %xmm0, %xmm4
+ fold_16_bytes %xmm1, %xmm5
+ fold_16_bytes %xmm2, %xmm6
+ fold_16_bytes %xmm3, %xmm7
+ # Fold across 32 bytes.
+ movdqa .Lfold_across_32_bytes_consts(%rip), FOLD_CONSTS
+ fold_16_bytes %xmm4, %xmm6
+ fold_16_bytes %xmm5, %xmm7
+ # Fold across 16 bytes.
+ movdqa .Lfold_across_16_bytes_consts(%rip), FOLD_CONSTS
+ fold_16_bytes %xmm6, %xmm7
+
+ # Add 128 to get the correct number of data bytes remaining in 0...127
+ # (not counting xmm7), following the previous extra subtraction by 128.
+ # Then subtract 16 to simplify the termination condition of the
+ # following loop.
+ add $128-16, len
+
+ # While >= 16 data bytes remain (not counting xmm7), fold the 16 bytes
+ # xmm7 into them, storing the result back into xmm7.
+ jl .Lfold_16_bytes_loop_done
+.Lfold_16_bytes_loop:
+ movdqa %xmm7, %xmm8
+ pclmulqdq $0x11, FOLD_CONSTS, %xmm7
+ pclmulqdq $0x00, FOLD_CONSTS, %xmm8
+ pxor %xmm8, %xmm7
+ movdqu (buf), %xmm0
+ pshufb BSWAP_MASK, %xmm0
+ pxor %xmm0 , %xmm7
+ add $16, buf
+ sub $16, len
+ jge .Lfold_16_bytes_loop
+
+.Lfold_16_bytes_loop_done:
+ # Add 16 to get the correct number of data bytes remaining in 0...15
+ # (not counting xmm7), following the previous extra subtraction by 16.
+ add $16, len
+ je .Lreduce_final_16_bytes
+
+.Lhandle_partial_segment:
+ # Reduce the last '16 + len' bytes where 1 <= len <= 15 and the first 16
+ # bytes are in xmm7 and the rest are the remaining data in 'buf'. To do
+ # this without needing a fold constant for each possible 'len', redivide
+ # the bytes into a first chunk of 'len' bytes and a second chunk of 16
+ # bytes, then fold the first chunk into the second.
+
+ movdqa %xmm7, %xmm2
+
+ # xmm1 = last 16 original data bytes
+ movdqu -16(buf, len), %xmm1
+ pshufb BSWAP_MASK, %xmm1
+
+ # xmm2 = high order part of second chunk: xmm7 left-shifted by 'len' bytes.
+ lea .Lbyteshift_table+16(%rip), %rax
+ sub len, %rax
+ movdqu (%rax), %xmm0
+ pshufb %xmm0, %xmm2
+
+ # xmm7 = first chunk: xmm7 right-shifted by '16-len' bytes.
+ pxor .Lmask1(%rip), %xmm0
+ pshufb %xmm0, %xmm7
+
+ # xmm1 = second chunk: 'len' bytes from xmm1 (low-order bytes),
+ # then '16-len' bytes from xmm2 (high-order bytes).
+ pblendvb %xmm2, %xmm1 #xmm0 is implicit
+
+ # Fold the first chunk into the second chunk, storing the result in xmm7.
+ movdqa %xmm7, %xmm8
+ pclmulqdq $0x11, FOLD_CONSTS, %xmm7
+ pclmulqdq $0x00, FOLD_CONSTS, %xmm8
+ pxor %xmm8, %xmm7
+ pxor %xmm1, %xmm7
+
+.Lreduce_final_16_bytes:
+ # Reduce the 128-bit value M(x), stored in xmm7, to the final 16-bit CRC
+
+ # Load 'x^48 * (x^48 mod G(x))' and 'x^48 * (x^80 mod G(x))'.
+ movdqa .Lfinal_fold_consts(%rip), FOLD_CONSTS
+
+ # Fold the high 64 bits into the low 64 bits, while also multiplying by
+ # x^64. This produces a 128-bit value congruent to x^64 * M(x) and
+ # whose low 48 bits are 0.
+ movdqa %xmm7, %xmm0
+ pclmulqdq $0x11, FOLD_CONSTS, %xmm7 # high bits * x^48 * (x^80 mod G(x))
+ pslldq $8, %xmm0
+ pxor %xmm0, %xmm7 # + low bits * x^64
+
+ # Fold the high 32 bits into the low 96 bits. This produces a 96-bit
+ # value congruent to x^64 * M(x) and whose low 48 bits are 0.
+ movdqa %xmm7, %xmm0
+ pand .Lmask2(%rip), %xmm0 # zero high 32 bits
+ psrldq $12, %xmm7 # extract high 32 bits
+ pclmulqdq $0x00, FOLD_CONSTS, %xmm7 # high 32 bits * x^48 * (x^48 mod G(x))
+ pxor %xmm0, %xmm7 # + low bits
+
+ # Load G(x) and floor(x^48 / G(x)).
+ movdqa .Lbarrett_reduction_consts(%rip), FOLD_CONSTS
+
+ # Use Barrett reduction to compute the final CRC value.
+ movdqa %xmm7, %xmm0
+ pclmulqdq $0x11, FOLD_CONSTS, %xmm7 # high 32 bits * floor(x^48 / G(x))
+ psrlq $32, %xmm7 # /= x^32
+ pclmulqdq $0x00, FOLD_CONSTS, %xmm7 # *= G(x)
+ psrlq $48, %xmm0
+ pxor %xmm7, %xmm0 # + low 16 nonzero bits
+ # Final CRC value (x^16 * M(x)) mod G(x) is in low 16 bits of xmm0.
+
+ pextrw $0, %xmm0, %eax
+ RET
+
+.align 16
+.Lless_than_256_bytes:
+ # Checksumming a buffer of length 16...255 bytes
+
+ # Load the first 16 data bytes.
+ movdqu (buf), %xmm7
+ pshufb BSWAP_MASK, %xmm7
+ add $16, buf
+
+ # XOR the first 16 data *bits* with the initial CRC value.
+ pxor %xmm0, %xmm0
+ pinsrw $7, init_crc, %xmm0
+ pxor %xmm0, %xmm7
+
+ movdqa .Lfold_across_16_bytes_consts(%rip), FOLD_CONSTS
+ cmp $16, len
+ je .Lreduce_final_16_bytes # len == 16
+ sub $32, len
+ jge .Lfold_16_bytes_loop # 32 <= len <= 255
+ add $16, len
+ jmp .Lhandle_partial_segment # 17 <= len <= 31
+SYM_FUNC_END(crc_t10dif_pcl)
+
+.section .rodata, "a", @progbits
+.align 16
+
+# Fold constants precomputed from the polynomial 0x18bb7
+# G(x) = x^16 + x^15 + x^11 + x^9 + x^8 + x^7 + x^5 + x^4 + x^2 + x^1 + x^0
+.Lfold_across_128_bytes_consts:
+ .quad 0x0000000000006123 # x^(8*128) mod G(x)
+ .quad 0x0000000000002295 # x^(8*128+64) mod G(x)
+.Lfold_across_64_bytes_consts:
+ .quad 0x0000000000001069 # x^(4*128) mod G(x)
+ .quad 0x000000000000dd31 # x^(4*128+64) mod G(x)
+.Lfold_across_32_bytes_consts:
+ .quad 0x000000000000857d # x^(2*128) mod G(x)
+ .quad 0x0000000000007acc # x^(2*128+64) mod G(x)
+.Lfold_across_16_bytes_consts:
+ .quad 0x000000000000a010 # x^(1*128) mod G(x)
+ .quad 0x0000000000001faa # x^(1*128+64) mod G(x)
+.Lfinal_fold_consts:
+ .quad 0x1368000000000000 # x^48 * (x^48 mod G(x))
+ .quad 0x2d56000000000000 # x^48 * (x^80 mod G(x))
+.Lbarrett_reduction_consts:
+ .quad 0x0000000000018bb7 # G(x)
+ .quad 0x00000001f65a57f8 # floor(x^48 / G(x))
+
+.section .rodata.cst16.mask1, "aM", @progbits, 16
+.align 16
+.Lmask1:
+ .octa 0x80808080808080808080808080808080
+
+.section .rodata.cst16.mask2, "aM", @progbits, 16
+.align 16
+.Lmask2:
+ .octa 0x00000000FFFFFFFFFFFFFFFFFFFFFFFF
+
+.section .rodata.cst16.bswap_mask, "aM", @progbits, 16
+.align 16
+.Lbswap_mask:
+ .octa 0x000102030405060708090A0B0C0D0E0F
+
+.section .rodata.cst32.byteshift_table, "aM", @progbits, 32
+.align 16
+# For 1 <= len <= 15, the 16-byte vector beginning at &byteshift_table[16 - len]
+# is the index vector to shift left by 'len' bytes, and is also {0x80, ...,
+# 0x80} XOR the index vector to shift right by '16 - len' bytes.
+.Lbyteshift_table:
+ .byte 0x0, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87
+ .byte 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f
+ .byte 0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7
+ .byte 0x8, 0x9, 0xa, 0xb, 0xc, 0xd, 0xe , 0x0
diff --git a/arch/x86/crypto/crct10dif-pclmul_glue.c b/arch/x86/crypto/crct10dif-pclmul_glue.c
new file mode 100644
index 000000000000..71291d5af9f4
--- /dev/null
+++ b/arch/x86/crypto/crct10dif-pclmul_glue.c
@@ -0,0 +1,143 @@
+/*
+ * Cryptographic API.
+ *
+ * T10 Data Integrity Field CRC16 Crypto Transform using PCLMULQDQ Instructions
+ *
+ * Copyright (C) 2013 Intel Corporation
+ * Author: Tim Chen <tim.c.chen@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/crc-t10dif.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <asm/cpufeatures.h>
+#include <asm/cpu_device_id.h>
+#include <asm/simd.h>
+
+asmlinkage u16 crc_t10dif_pcl(u16 init_crc, const u8 *buf, size_t len);
+
+struct chksum_desc_ctx {
+ __u16 crc;
+};
+
+static int chksum_init(struct shash_desc *desc)
+{
+ struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ ctx->crc = 0;
+
+ return 0;
+}
+
+static int chksum_update(struct shash_desc *desc, const u8 *data,
+ unsigned int length)
+{
+ struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ if (length >= 16 && crypto_simd_usable()) {
+ kernel_fpu_begin();
+ ctx->crc = crc_t10dif_pcl(ctx->crc, data, length);
+ kernel_fpu_end();
+ } else
+ ctx->crc = crc_t10dif_generic(ctx->crc, data, length);
+ return 0;
+}
+
+static int chksum_final(struct shash_desc *desc, u8 *out)
+{
+ struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ *(__u16 *)out = ctx->crc;
+ return 0;
+}
+
+static int __chksum_finup(__u16 crc, const u8 *data, unsigned int len, u8 *out)
+{
+ if (len >= 16 && crypto_simd_usable()) {
+ kernel_fpu_begin();
+ *(__u16 *)out = crc_t10dif_pcl(crc, data, len);
+ kernel_fpu_end();
+ } else
+ *(__u16 *)out = crc_t10dif_generic(crc, data, len);
+ return 0;
+}
+
+static int chksum_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ struct chksum_desc_ctx *ctx = shash_desc_ctx(desc);
+
+ return __chksum_finup(ctx->crc, data, len, out);
+}
+
+static int chksum_digest(struct shash_desc *desc, const u8 *data,
+ unsigned int length, u8 *out)
+{
+ return __chksum_finup(0, data, length, out);
+}
+
+static struct shash_alg alg = {
+ .digestsize = CRC_T10DIF_DIGEST_SIZE,
+ .init = chksum_init,
+ .update = chksum_update,
+ .final = chksum_final,
+ .finup = chksum_finup,
+ .digest = chksum_digest,
+ .descsize = sizeof(struct chksum_desc_ctx),
+ .base = {
+ .cra_name = "crct10dif",
+ .cra_driver_name = "crct10dif-pclmul",
+ .cra_priority = 200,
+ .cra_blocksize = CRC_T10DIF_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+};
+
+static const struct x86_cpu_id crct10dif_cpu_id[] = {
+ X86_MATCH_FEATURE(X86_FEATURE_PCLMULQDQ, NULL),
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, crct10dif_cpu_id);
+
+static int __init crct10dif_intel_mod_init(void)
+{
+ if (!x86_match_cpu(crct10dif_cpu_id))
+ return -ENODEV;
+
+ return crypto_register_shash(&alg);
+}
+
+static void __exit crct10dif_intel_mod_fini(void)
+{
+ crypto_unregister_shash(&alg);
+}
+
+module_init(crct10dif_intel_mod_init);
+module_exit(crct10dif_intel_mod_fini);
+
+MODULE_AUTHOR("Tim Chen <tim.c.chen@linux.intel.com>");
+MODULE_DESCRIPTION("T10 DIF CRC calculation accelerated with PCLMULQDQ.");
+MODULE_LICENSE("GPL");
+
+MODULE_ALIAS_CRYPTO("crct10dif");
+MODULE_ALIAS_CRYPTO("crct10dif-pclmul");
diff --git a/arch/x86/crypto/curve25519-x86_64.c b/arch/x86/crypto/curve25519-x86_64.c
new file mode 100644
index 000000000000..d55fa9e9b9e6
--- /dev/null
+++ b/arch/x86/crypto/curve25519-x86_64.c
@@ -0,0 +1,1724 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ * Copyright (c) 2016-2020 INRIA, CMU and Microsoft Corporation
+ */
+
+#include <crypto/curve25519.h>
+#include <crypto/internal/kpp.h>
+
+#include <linux/types.h>
+#include <linux/jump_label.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/scatterlist.h>
+
+#include <asm/cpufeature.h>
+#include <asm/processor.h>
+
+static __always_inline u64 eq_mask(u64 a, u64 b)
+{
+ u64 x = a ^ b;
+ u64 minus_x = ~x + (u64)1U;
+ u64 x_or_minus_x = x | minus_x;
+ u64 xnx = x_or_minus_x >> (u32)63U;
+ return xnx - (u64)1U;
+}
+
+static __always_inline u64 gte_mask(u64 a, u64 b)
+{
+ u64 x = a;
+ u64 y = b;
+ u64 x_xor_y = x ^ y;
+ u64 x_sub_y = x - y;
+ u64 x_sub_y_xor_y = x_sub_y ^ y;
+ u64 q = x_xor_y | x_sub_y_xor_y;
+ u64 x_xor_q = x ^ q;
+ u64 x_xor_q_ = x_xor_q >> (u32)63U;
+ return x_xor_q_ - (u64)1U;
+}
+
+/* Computes the addition of four-element f1 with value in f2
+ * and returns the carry (if any) */
+static inline u64 add_scalar(u64 *out, const u64 *f1, u64 f2)
+{
+ u64 carry_r;
+
+ asm volatile(
+ /* Clear registers to propagate the carry bit */
+ " xor %%r8d, %%r8d;"
+ " xor %%r9d, %%r9d;"
+ " xor %%r10d, %%r10d;"
+ " xor %%r11d, %%r11d;"
+ " xor %k1, %k1;"
+
+ /* Begin addition chain */
+ " addq 0(%3), %0;"
+ " movq %0, 0(%2);"
+ " adcxq 8(%3), %%r8;"
+ " movq %%r8, 8(%2);"
+ " adcxq 16(%3), %%r9;"
+ " movq %%r9, 16(%2);"
+ " adcxq 24(%3), %%r10;"
+ " movq %%r10, 24(%2);"
+
+ /* Return the carry bit in a register */
+ " adcx %%r11, %1;"
+ : "+&r"(f2), "=&r"(carry_r)
+ : "r"(out), "r"(f1)
+ : "%r8", "%r9", "%r10", "%r11", "memory", "cc");
+
+ return carry_r;
+}
+
+/* Computes the field addition of two field elements */
+static inline void fadd(u64 *out, const u64 *f1, const u64 *f2)
+{
+ asm volatile(
+ /* Compute the raw addition of f1 + f2 */
+ " movq 0(%0), %%r8;"
+ " addq 0(%2), %%r8;"
+ " movq 8(%0), %%r9;"
+ " adcxq 8(%2), %%r9;"
+ " movq 16(%0), %%r10;"
+ " adcxq 16(%2), %%r10;"
+ " movq 24(%0), %%r11;"
+ " adcxq 24(%2), %%r11;"
+
+ /* Wrap the result back into the field */
+
+ /* Step 1: Compute carry*38 */
+ " mov $0, %%rax;"
+ " mov $38, %0;"
+ " cmovc %0, %%rax;"
+
+ /* Step 2: Add carry*38 to the original sum */
+ " xor %%ecx, %%ecx;"
+ " add %%rax, %%r8;"
+ " adcx %%rcx, %%r9;"
+ " movq %%r9, 8(%1);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 16(%1);"
+ " adcx %%rcx, %%r11;"
+ " movq %%r11, 24(%1);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %0, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%1);"
+ : "+&r"(f2)
+ : "r"(out), "r"(f1)
+ : "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11", "memory", "cc");
+}
+
+/* Computes the field subtraction of two field elements */
+static inline void fsub(u64 *out, const u64 *f1, const u64 *f2)
+{
+ asm volatile(
+ /* Compute the raw subtraction of f1-f2 */
+ " movq 0(%1), %%r8;"
+ " subq 0(%2), %%r8;"
+ " movq 8(%1), %%r9;"
+ " sbbq 8(%2), %%r9;"
+ " movq 16(%1), %%r10;"
+ " sbbq 16(%2), %%r10;"
+ " movq 24(%1), %%r11;"
+ " sbbq 24(%2), %%r11;"
+
+ /* Wrap the result back into the field */
+
+ /* Step 1: Compute carry*38 */
+ " mov $0, %%rax;"
+ " mov $38, %%rcx;"
+ " cmovc %%rcx, %%rax;"
+
+ /* Step 2: Subtract carry*38 from the original difference */
+ " sub %%rax, %%r8;"
+ " sbb $0, %%r9;"
+ " sbb $0, %%r10;"
+ " sbb $0, %%r11;"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rcx, %%rax;"
+ " sub %%rax, %%r8;"
+
+ /* Store the result */
+ " movq %%r8, 0(%0);"
+ " movq %%r9, 8(%0);"
+ " movq %%r10, 16(%0);"
+ " movq %%r11, 24(%0);"
+ :
+ : "r"(out), "r"(f1), "r"(f2)
+ : "%rax", "%rcx", "%r8", "%r9", "%r10", "%r11", "memory", "cc");
+}
+
+/* Computes a field multiplication: out <- f1 * f2
+ * Uses the 8-element buffer tmp for intermediate results */
+static inline void fmul(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp)
+{
+ asm volatile(
+
+ /* Compute the raw multiplication: tmp <- src1 * src2 */
+
+ /* Compute src1[0] * src2 */
+ " movq 0(%0), %%rdx;"
+ " mulxq 0(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " movq %%r8, 0(%2);"
+ " mulxq 8(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " movq %%r10, 8(%2);"
+ " mulxq 16(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " mulxq 24(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+
+ /* Compute src1[1] * src2 */
+ " movq 8(%0), %%rdx;"
+ " mulxq 0(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " adcxq 8(%2), %%r8;"
+ " movq %%r8, 8(%2);"
+ " mulxq 8(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " adcx %%rbx, %%r10;"
+ " movq %%r10, 16(%2);"
+ " mulxq 16(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " adcx %%r14, %%rbx;"
+ " mov $0, %%r8;"
+ " mulxq 24(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " adcx %%rax, %%r14;"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ " adcx %%r8, %%rax;"
+
+ /* Compute src1[2] * src2 */
+ " movq 16(%0), %%rdx;"
+ " mulxq 0(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " adcxq 16(%2), %%r8;"
+ " movq %%r8, 16(%2);"
+ " mulxq 8(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " adcx %%rbx, %%r10;"
+ " movq %%r10, 24(%2);"
+ " mulxq 16(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " adcx %%r14, %%rbx;"
+ " mov $0, %%r8;"
+ " mulxq 24(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " adcx %%rax, %%r14;"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ " adcx %%r8, %%rax;"
+
+ /* Compute src1[3] * src2 */
+ " movq 24(%0), %%rdx;"
+ " mulxq 0(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " adcxq 24(%2), %%r8;"
+ " movq %%r8, 24(%2);"
+ " mulxq 8(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " adcx %%rbx, %%r10;"
+ " movq %%r10, 32(%2);"
+ " mulxq 16(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " adcx %%r14, %%rbx;"
+ " movq %%rbx, 40(%2);"
+ " mov $0, %%r8;"
+ " mulxq 24(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " adcx %%rax, %%r14;"
+ " movq %%r14, 48(%2);"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ " adcx %%r8, %%rax;"
+ " movq %%rax, 56(%2);"
+
+ /* Line up pointers */
+ " mov %2, %0;"
+ " mov %3, %2;"
+
+ /* Wrap the result back into the field */
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 32(%0), %%r8, %%r13;"
+ " xor %k1, %k1;"
+ " adoxq 0(%0), %%r8;"
+ " mulxq 40(%0), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 8(%0), %%r9;"
+ " mulxq 48(%0), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 16(%0), %%r10;"
+ " mulxq 56(%0), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 24(%0), %%r11;"
+ " adcx %1, %%rax;"
+ " adox %1, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %1, %%r9;"
+ " movq %%r9, 8(%2);"
+ " adcx %1, %%r10;"
+ " movq %%r10, 16(%2);"
+ " adcx %1, %%r11;"
+ " movq %%r11, 24(%2);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%2);"
+ : "+&r"(f1), "+&r"(f2), "+&r"(tmp)
+ : "r"(out)
+ : "%rax", "%rbx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r13",
+ "%r14", "memory", "cc");
+}
+
+/* Computes two field multiplications:
+ * out[0] <- f1[0] * f2[0]
+ * out[1] <- f1[1] * f2[1]
+ * Uses the 16-element buffer tmp for intermediate results: */
+static inline void fmul2(u64 *out, const u64 *f1, const u64 *f2, u64 *tmp)
+{
+ asm volatile(
+
+ /* Compute the raw multiplication tmp[0] <- f1[0] * f2[0] */
+
+ /* Compute src1[0] * src2 */
+ " movq 0(%0), %%rdx;"
+ " mulxq 0(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " movq %%r8, 0(%2);"
+ " mulxq 8(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " movq %%r10, 8(%2);"
+ " mulxq 16(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " mulxq 24(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+
+ /* Compute src1[1] * src2 */
+ " movq 8(%0), %%rdx;"
+ " mulxq 0(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " adcxq 8(%2), %%r8;"
+ " movq %%r8, 8(%2);"
+ " mulxq 8(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " adcx %%rbx, %%r10;"
+ " movq %%r10, 16(%2);"
+ " mulxq 16(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " adcx %%r14, %%rbx;"
+ " mov $0, %%r8;"
+ " mulxq 24(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " adcx %%rax, %%r14;"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ " adcx %%r8, %%rax;"
+
+ /* Compute src1[2] * src2 */
+ " movq 16(%0), %%rdx;"
+ " mulxq 0(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " adcxq 16(%2), %%r8;"
+ " movq %%r8, 16(%2);"
+ " mulxq 8(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " adcx %%rbx, %%r10;"
+ " movq %%r10, 24(%2);"
+ " mulxq 16(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " adcx %%r14, %%rbx;"
+ " mov $0, %%r8;"
+ " mulxq 24(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " adcx %%rax, %%r14;"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ " adcx %%r8, %%rax;"
+
+ /* Compute src1[3] * src2 */
+ " movq 24(%0), %%rdx;"
+ " mulxq 0(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " adcxq 24(%2), %%r8;"
+ " movq %%r8, 24(%2);"
+ " mulxq 8(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " adcx %%rbx, %%r10;"
+ " movq %%r10, 32(%2);"
+ " mulxq 16(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " adcx %%r14, %%rbx;"
+ " movq %%rbx, 40(%2);"
+ " mov $0, %%r8;"
+ " mulxq 24(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " adcx %%rax, %%r14;"
+ " movq %%r14, 48(%2);"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ " adcx %%r8, %%rax;"
+ " movq %%rax, 56(%2);"
+
+ /* Compute the raw multiplication tmp[1] <- f1[1] * f2[1] */
+
+ /* Compute src1[0] * src2 */
+ " movq 32(%0), %%rdx;"
+ " mulxq 32(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " movq %%r8, 64(%2);"
+ " mulxq 40(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " movq %%r10, 72(%2);"
+ " mulxq 48(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " mulxq 56(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+
+ /* Compute src1[1] * src2 */
+ " movq 40(%0), %%rdx;"
+ " mulxq 32(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " adcxq 72(%2), %%r8;"
+ " movq %%r8, 72(%2);"
+ " mulxq 40(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " adcx %%rbx, %%r10;"
+ " movq %%r10, 80(%2);"
+ " mulxq 48(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " adcx %%r14, %%rbx;"
+ " mov $0, %%r8;"
+ " mulxq 56(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " adcx %%rax, %%r14;"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ " adcx %%r8, %%rax;"
+
+ /* Compute src1[2] * src2 */
+ " movq 48(%0), %%rdx;"
+ " mulxq 32(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " adcxq 80(%2), %%r8;"
+ " movq %%r8, 80(%2);"
+ " mulxq 40(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " adcx %%rbx, %%r10;"
+ " movq %%r10, 88(%2);"
+ " mulxq 48(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " adcx %%r14, %%rbx;"
+ " mov $0, %%r8;"
+ " mulxq 56(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " adcx %%rax, %%r14;"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ " adcx %%r8, %%rax;"
+
+ /* Compute src1[3] * src2 */
+ " movq 56(%0), %%rdx;"
+ " mulxq 32(%1), %%r8, %%r9;"
+ " xor %%r10d, %%r10d;"
+ " adcxq 88(%2), %%r8;"
+ " movq %%r8, 88(%2);"
+ " mulxq 40(%1), %%r10, %%r11;"
+ " adox %%r9, %%r10;"
+ " adcx %%rbx, %%r10;"
+ " movq %%r10, 96(%2);"
+ " mulxq 48(%1), %%rbx, %%r13;"
+ " adox %%r11, %%rbx;"
+ " adcx %%r14, %%rbx;"
+ " movq %%rbx, 104(%2);"
+ " mov $0, %%r8;"
+ " mulxq 56(%1), %%r14, %%rdx;"
+ " adox %%r13, %%r14;"
+ " adcx %%rax, %%r14;"
+ " movq %%r14, 112(%2);"
+ " mov $0, %%rax;"
+ " adox %%rdx, %%rax;"
+ " adcx %%r8, %%rax;"
+ " movq %%rax, 120(%2);"
+
+ /* Line up pointers */
+ " mov %2, %0;"
+ " mov %3, %2;"
+
+ /* Wrap the results back into the field */
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 32(%0), %%r8, %%r13;"
+ " xor %k1, %k1;"
+ " adoxq 0(%0), %%r8;"
+ " mulxq 40(%0), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 8(%0), %%r9;"
+ " mulxq 48(%0), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 16(%0), %%r10;"
+ " mulxq 56(%0), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 24(%0), %%r11;"
+ " adcx %1, %%rax;"
+ " adox %1, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %1, %%r9;"
+ " movq %%r9, 8(%2);"
+ " adcx %1, %%r10;"
+ " movq %%r10, 16(%2);"
+ " adcx %1, %%r11;"
+ " movq %%r11, 24(%2);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%2);"
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 96(%0), %%r8, %%r13;"
+ " xor %k1, %k1;"
+ " adoxq 64(%0), %%r8;"
+ " mulxq 104(%0), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 72(%0), %%r9;"
+ " mulxq 112(%0), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 80(%0), %%r10;"
+ " mulxq 120(%0), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 88(%0), %%r11;"
+ " adcx %1, %%rax;"
+ " adox %1, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %1, %%r9;"
+ " movq %%r9, 40(%2);"
+ " adcx %1, %%r10;"
+ " movq %%r10, 48(%2);"
+ " adcx %1, %%r11;"
+ " movq %%r11, 56(%2);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 32(%2);"
+ : "+&r"(f1), "+&r"(f2), "+&r"(tmp)
+ : "r"(out)
+ : "%rax", "%rbx", "%rdx", "%r8", "%r9", "%r10", "%r11", "%r13",
+ "%r14", "memory", "cc");
+}
+
+/* Computes the field multiplication of four-element f1 with value in f2
+ * Requires f2 to be smaller than 2^17 */
+static inline void fmul_scalar(u64 *out, const u64 *f1, u64 f2)
+{
+ register u64 f2_r asm("rdx") = f2;
+
+ asm volatile(
+ /* Compute the raw multiplication of f1*f2 */
+ " mulxq 0(%2), %%r8, %%rcx;" /* f1[0]*f2 */
+ " mulxq 8(%2), %%r9, %%rbx;" /* f1[1]*f2 */
+ " add %%rcx, %%r9;"
+ " mov $0, %%rcx;"
+ " mulxq 16(%2), %%r10, %%r13;" /* f1[2]*f2 */
+ " adcx %%rbx, %%r10;"
+ " mulxq 24(%2), %%r11, %%rax;" /* f1[3]*f2 */
+ " adcx %%r13, %%r11;"
+ " adcx %%rcx, %%rax;"
+
+ /* Wrap the result back into the field */
+
+ /* Step 1: Compute carry*38 */
+ " mov $38, %%rdx;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %%rcx, %%r9;"
+ " movq %%r9, 8(%1);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 16(%1);"
+ " adcx %%rcx, %%r11;"
+ " movq %%r11, 24(%1);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%1);"
+ : "+&r"(f2_r)
+ : "r"(out), "r"(f1)
+ : "%rax", "%rbx", "%rcx", "%r8", "%r9", "%r10", "%r11", "%r13",
+ "memory", "cc");
+}
+
+/* Computes p1 <- bit ? p2 : p1 in constant time */
+static inline void cswap2(u64 bit, const u64 *p1, const u64 *p2)
+{
+ asm volatile(
+ /* Transfer bit into CF flag */
+ " add $18446744073709551615, %0;"
+
+ /* cswap p1[0], p2[0] */
+ " movq 0(%1), %%r8;"
+ " movq 0(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 0(%1);"
+ " movq %%r9, 0(%2);"
+
+ /* cswap p1[1], p2[1] */
+ " movq 8(%1), %%r8;"
+ " movq 8(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 8(%1);"
+ " movq %%r9, 8(%2);"
+
+ /* cswap p1[2], p2[2] */
+ " movq 16(%1), %%r8;"
+ " movq 16(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 16(%1);"
+ " movq %%r9, 16(%2);"
+
+ /* cswap p1[3], p2[3] */
+ " movq 24(%1), %%r8;"
+ " movq 24(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 24(%1);"
+ " movq %%r9, 24(%2);"
+
+ /* cswap p1[4], p2[4] */
+ " movq 32(%1), %%r8;"
+ " movq 32(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 32(%1);"
+ " movq %%r9, 32(%2);"
+
+ /* cswap p1[5], p2[5] */
+ " movq 40(%1), %%r8;"
+ " movq 40(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 40(%1);"
+ " movq %%r9, 40(%2);"
+
+ /* cswap p1[6], p2[6] */
+ " movq 48(%1), %%r8;"
+ " movq 48(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 48(%1);"
+ " movq %%r9, 48(%2);"
+
+ /* cswap p1[7], p2[7] */
+ " movq 56(%1), %%r8;"
+ " movq 56(%2), %%r9;"
+ " mov %%r8, %%r10;"
+ " cmovc %%r9, %%r8;"
+ " cmovc %%r10, %%r9;"
+ " movq %%r8, 56(%1);"
+ " movq %%r9, 56(%2);"
+ : "+&r"(bit)
+ : "r"(p1), "r"(p2)
+ : "%r8", "%r9", "%r10", "memory", "cc");
+}
+
+/* Computes the square of a field element: out <- f * f
+ * Uses the 8-element buffer tmp for intermediate results */
+static inline void fsqr(u64 *out, const u64 *f, u64 *tmp)
+{
+ asm volatile(
+ /* Compute the raw multiplication: tmp <- f * f */
+
+ /* Step 1: Compute all partial products */
+ " movq 0(%0), %%rdx;" /* f[0] */
+ " mulxq 8(%0), %%r8, %%r14;"
+ " xor %%r15d, %%r15d;" /* f[1]*f[0] */
+ " mulxq 16(%0), %%r9, %%r10;"
+ " adcx %%r14, %%r9;" /* f[2]*f[0] */
+ " mulxq 24(%0), %%rax, %%rcx;"
+ " adcx %%rax, %%r10;" /* f[3]*f[0] */
+ " movq 24(%0), %%rdx;" /* f[3] */
+ " mulxq 8(%0), %%r11, %%rbx;"
+ " adcx %%rcx, %%r11;" /* f[1]*f[3] */
+ " mulxq 16(%0), %%rax, %%r13;"
+ " adcx %%rax, %%rbx;" /* f[2]*f[3] */
+ " movq 8(%0), %%rdx;"
+ " adcx %%r15, %%r13;" /* f1 */
+ " mulxq 16(%0), %%rax, %%rcx;"
+ " mov $0, %%r14;" /* f[2]*f[1] */
+
+ /* Step 2: Compute two parallel carry chains */
+ " xor %%r15d, %%r15d;"
+ " adox %%rax, %%r10;"
+ " adcx %%r8, %%r8;"
+ " adox %%rcx, %%r11;"
+ " adcx %%r9, %%r9;"
+ " adox %%r15, %%rbx;"
+ " adcx %%r10, %%r10;"
+ " adox %%r15, %%r13;"
+ " adcx %%r11, %%r11;"
+ " adox %%r15, %%r14;"
+ " adcx %%rbx, %%rbx;"
+ " adcx %%r13, %%r13;"
+ " adcx %%r14, %%r14;"
+
+ /* Step 3: Compute intermediate squares */
+ " movq 0(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[0]^2 */
+ " movq %%rax, 0(%1);"
+ " add %%rcx, %%r8;"
+ " movq %%r8, 8(%1);"
+ " movq 8(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[1]^2 */
+ " adcx %%rax, %%r9;"
+ " movq %%r9, 16(%1);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 24(%1);"
+ " movq 16(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[2]^2 */
+ " adcx %%rax, %%r11;"
+ " movq %%r11, 32(%1);"
+ " adcx %%rcx, %%rbx;"
+ " movq %%rbx, 40(%1);"
+ " movq 24(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[3]^2 */
+ " adcx %%rax, %%r13;"
+ " movq %%r13, 48(%1);"
+ " adcx %%rcx, %%r14;"
+ " movq %%r14, 56(%1);"
+
+ /* Line up pointers */
+ " mov %1, %0;"
+ " mov %2, %1;"
+
+ /* Wrap the result back into the field */
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 32(%0), %%r8, %%r13;"
+ " xor %%ecx, %%ecx;"
+ " adoxq 0(%0), %%r8;"
+ " mulxq 40(%0), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 8(%0), %%r9;"
+ " mulxq 48(%0), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 16(%0), %%r10;"
+ " mulxq 56(%0), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 24(%0), %%r11;"
+ " adcx %%rcx, %%rax;"
+ " adox %%rcx, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %%rcx, %%r9;"
+ " movq %%r9, 8(%1);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 16(%1);"
+ " adcx %%rcx, %%r11;"
+ " movq %%r11, 24(%1);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%1);"
+ : "+&r"(f), "+&r"(tmp)
+ : "r"(out)
+ : "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11",
+ "%r13", "%r14", "%r15", "memory", "cc");
+}
+
+/* Computes two field squarings:
+ * out[0] <- f[0] * f[0]
+ * out[1] <- f[1] * f[1]
+ * Uses the 16-element buffer tmp for intermediate results */
+static inline void fsqr2(u64 *out, const u64 *f, u64 *tmp)
+{
+ asm volatile(
+ /* Step 1: Compute all partial products */
+ " movq 0(%0), %%rdx;" /* f[0] */
+ " mulxq 8(%0), %%r8, %%r14;"
+ " xor %%r15d, %%r15d;" /* f[1]*f[0] */
+ " mulxq 16(%0), %%r9, %%r10;"
+ " adcx %%r14, %%r9;" /* f[2]*f[0] */
+ " mulxq 24(%0), %%rax, %%rcx;"
+ " adcx %%rax, %%r10;" /* f[3]*f[0] */
+ " movq 24(%0), %%rdx;" /* f[3] */
+ " mulxq 8(%0), %%r11, %%rbx;"
+ " adcx %%rcx, %%r11;" /* f[1]*f[3] */
+ " mulxq 16(%0), %%rax, %%r13;"
+ " adcx %%rax, %%rbx;" /* f[2]*f[3] */
+ " movq 8(%0), %%rdx;"
+ " adcx %%r15, %%r13;" /* f1 */
+ " mulxq 16(%0), %%rax, %%rcx;"
+ " mov $0, %%r14;" /* f[2]*f[1] */
+
+ /* Step 2: Compute two parallel carry chains */
+ " xor %%r15d, %%r15d;"
+ " adox %%rax, %%r10;"
+ " adcx %%r8, %%r8;"
+ " adox %%rcx, %%r11;"
+ " adcx %%r9, %%r9;"
+ " adox %%r15, %%rbx;"
+ " adcx %%r10, %%r10;"
+ " adox %%r15, %%r13;"
+ " adcx %%r11, %%r11;"
+ " adox %%r15, %%r14;"
+ " adcx %%rbx, %%rbx;"
+ " adcx %%r13, %%r13;"
+ " adcx %%r14, %%r14;"
+
+ /* Step 3: Compute intermediate squares */
+ " movq 0(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[0]^2 */
+ " movq %%rax, 0(%1);"
+ " add %%rcx, %%r8;"
+ " movq %%r8, 8(%1);"
+ " movq 8(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[1]^2 */
+ " adcx %%rax, %%r9;"
+ " movq %%r9, 16(%1);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 24(%1);"
+ " movq 16(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[2]^2 */
+ " adcx %%rax, %%r11;"
+ " movq %%r11, 32(%1);"
+ " adcx %%rcx, %%rbx;"
+ " movq %%rbx, 40(%1);"
+ " movq 24(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[3]^2 */
+ " adcx %%rax, %%r13;"
+ " movq %%r13, 48(%1);"
+ " adcx %%rcx, %%r14;"
+ " movq %%r14, 56(%1);"
+
+ /* Step 1: Compute all partial products */
+ " movq 32(%0), %%rdx;" /* f[0] */
+ " mulxq 40(%0), %%r8, %%r14;"
+ " xor %%r15d, %%r15d;" /* f[1]*f[0] */
+ " mulxq 48(%0), %%r9, %%r10;"
+ " adcx %%r14, %%r9;" /* f[2]*f[0] */
+ " mulxq 56(%0), %%rax, %%rcx;"
+ " adcx %%rax, %%r10;" /* f[3]*f[0] */
+ " movq 56(%0), %%rdx;" /* f[3] */
+ " mulxq 40(%0), %%r11, %%rbx;"
+ " adcx %%rcx, %%r11;" /* f[1]*f[3] */
+ " mulxq 48(%0), %%rax, %%r13;"
+ " adcx %%rax, %%rbx;" /* f[2]*f[3] */
+ " movq 40(%0), %%rdx;"
+ " adcx %%r15, %%r13;" /* f1 */
+ " mulxq 48(%0), %%rax, %%rcx;"
+ " mov $0, %%r14;" /* f[2]*f[1] */
+
+ /* Step 2: Compute two parallel carry chains */
+ " xor %%r15d, %%r15d;"
+ " adox %%rax, %%r10;"
+ " adcx %%r8, %%r8;"
+ " adox %%rcx, %%r11;"
+ " adcx %%r9, %%r9;"
+ " adox %%r15, %%rbx;"
+ " adcx %%r10, %%r10;"
+ " adox %%r15, %%r13;"
+ " adcx %%r11, %%r11;"
+ " adox %%r15, %%r14;"
+ " adcx %%rbx, %%rbx;"
+ " adcx %%r13, %%r13;"
+ " adcx %%r14, %%r14;"
+
+ /* Step 3: Compute intermediate squares */
+ " movq 32(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[0]^2 */
+ " movq %%rax, 64(%1);"
+ " add %%rcx, %%r8;"
+ " movq %%r8, 72(%1);"
+ " movq 40(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[1]^2 */
+ " adcx %%rax, %%r9;"
+ " movq %%r9, 80(%1);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 88(%1);"
+ " movq 48(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[2]^2 */
+ " adcx %%rax, %%r11;"
+ " movq %%r11, 96(%1);"
+ " adcx %%rcx, %%rbx;"
+ " movq %%rbx, 104(%1);"
+ " movq 56(%0), %%rdx;"
+ " mulx %%rdx, %%rax, %%rcx;" /* f[3]^2 */
+ " adcx %%rax, %%r13;"
+ " movq %%r13, 112(%1);"
+ " adcx %%rcx, %%r14;"
+ " movq %%r14, 120(%1);"
+
+ /* Line up pointers */
+ " mov %1, %0;"
+ " mov %2, %1;"
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 32(%0), %%r8, %%r13;"
+ " xor %%ecx, %%ecx;"
+ " adoxq 0(%0), %%r8;"
+ " mulxq 40(%0), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 8(%0), %%r9;"
+ " mulxq 48(%0), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 16(%0), %%r10;"
+ " mulxq 56(%0), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 24(%0), %%r11;"
+ " adcx %%rcx, %%rax;"
+ " adox %%rcx, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %%rcx, %%r9;"
+ " movq %%r9, 8(%1);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 16(%1);"
+ " adcx %%rcx, %%r11;"
+ " movq %%r11, 24(%1);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 0(%1);"
+
+ /* Step 1: Compute dst + carry == tmp_hi * 38 + tmp_lo */
+ " mov $38, %%rdx;"
+ " mulxq 96(%0), %%r8, %%r13;"
+ " xor %%ecx, %%ecx;"
+ " adoxq 64(%0), %%r8;"
+ " mulxq 104(%0), %%r9, %%rbx;"
+ " adcx %%r13, %%r9;"
+ " adoxq 72(%0), %%r9;"
+ " mulxq 112(%0), %%r10, %%r13;"
+ " adcx %%rbx, %%r10;"
+ " adoxq 80(%0), %%r10;"
+ " mulxq 120(%0), %%r11, %%rax;"
+ " adcx %%r13, %%r11;"
+ " adoxq 88(%0), %%r11;"
+ " adcx %%rcx, %%rax;"
+ " adox %%rcx, %%rax;"
+ " imul %%rdx, %%rax;"
+
+ /* Step 2: Fold the carry back into dst */
+ " add %%rax, %%r8;"
+ " adcx %%rcx, %%r9;"
+ " movq %%r9, 40(%1);"
+ " adcx %%rcx, %%r10;"
+ " movq %%r10, 48(%1);"
+ " adcx %%rcx, %%r11;"
+ " movq %%r11, 56(%1);"
+
+ /* Step 3: Fold the carry bit back in; guaranteed not to carry at this point */
+ " mov $0, %%rax;"
+ " cmovc %%rdx, %%rax;"
+ " add %%rax, %%r8;"
+ " movq %%r8, 32(%1);"
+ : "+&r"(f), "+&r"(tmp)
+ : "r"(out)
+ : "%rax", "%rbx", "%rcx", "%rdx", "%r8", "%r9", "%r10", "%r11",
+ "%r13", "%r14", "%r15", "memory", "cc");
+}
+
+static void point_add_and_double(u64 *q, u64 *p01_tmp1, u64 *tmp2)
+{
+ u64 *nq = p01_tmp1;
+ u64 *nq_p1 = p01_tmp1 + (u32)8U;
+ u64 *tmp1 = p01_tmp1 + (u32)16U;
+ u64 *x1 = q;
+ u64 *x2 = nq;
+ u64 *z2 = nq + (u32)4U;
+ u64 *z3 = nq_p1 + (u32)4U;
+ u64 *a = tmp1;
+ u64 *b = tmp1 + (u32)4U;
+ u64 *ab = tmp1;
+ u64 *dc = tmp1 + (u32)8U;
+ u64 *x3;
+ u64 *z31;
+ u64 *d0;
+ u64 *c0;
+ u64 *a1;
+ u64 *b1;
+ u64 *d;
+ u64 *c;
+ u64 *ab1;
+ u64 *dc1;
+ fadd(a, x2, z2);
+ fsub(b, x2, z2);
+ x3 = nq_p1;
+ z31 = nq_p1 + (u32)4U;
+ d0 = dc;
+ c0 = dc + (u32)4U;
+ fadd(c0, x3, z31);
+ fsub(d0, x3, z31);
+ fmul2(dc, dc, ab, tmp2);
+ fadd(x3, d0, c0);
+ fsub(z31, d0, c0);
+ a1 = tmp1;
+ b1 = tmp1 + (u32)4U;
+ d = tmp1 + (u32)8U;
+ c = tmp1 + (u32)12U;
+ ab1 = tmp1;
+ dc1 = tmp1 + (u32)8U;
+ fsqr2(dc1, ab1, tmp2);
+ fsqr2(nq_p1, nq_p1, tmp2);
+ a1[0U] = c[0U];
+ a1[1U] = c[1U];
+ a1[2U] = c[2U];
+ a1[3U] = c[3U];
+ fsub(c, d, c);
+ fmul_scalar(b1, c, (u64)121665U);
+ fadd(b1, b1, d);
+ fmul2(nq, dc1, ab1, tmp2);
+ fmul(z3, z3, x1, tmp2);
+}
+
+static void point_double(u64 *nq, u64 *tmp1, u64 *tmp2)
+{
+ u64 *x2 = nq;
+ u64 *z2 = nq + (u32)4U;
+ u64 *a = tmp1;
+ u64 *b = tmp1 + (u32)4U;
+ u64 *d = tmp1 + (u32)8U;
+ u64 *c = tmp1 + (u32)12U;
+ u64 *ab = tmp1;
+ u64 *dc = tmp1 + (u32)8U;
+ fadd(a, x2, z2);
+ fsub(b, x2, z2);
+ fsqr2(dc, ab, tmp2);
+ a[0U] = c[0U];
+ a[1U] = c[1U];
+ a[2U] = c[2U];
+ a[3U] = c[3U];
+ fsub(c, d, c);
+ fmul_scalar(b, c, (u64)121665U);
+ fadd(b, b, d);
+ fmul2(nq, dc, ab, tmp2);
+}
+
+static void montgomery_ladder(u64 *out, const u8 *key, u64 *init1)
+{
+ u64 tmp2[16U] = { 0U };
+ u64 p01_tmp1_swap[33U] = { 0U };
+ u64 *p0 = p01_tmp1_swap;
+ u64 *p01 = p01_tmp1_swap;
+ u64 *p03 = p01;
+ u64 *p11 = p01 + (u32)8U;
+ u64 *x0;
+ u64 *z0;
+ u64 *p01_tmp1;
+ u64 *p01_tmp11;
+ u64 *nq10;
+ u64 *nq_p11;
+ u64 *swap1;
+ u64 sw0;
+ u64 *nq1;
+ u64 *tmp1;
+ memcpy(p11, init1, (u32)8U * sizeof(init1[0U]));
+ x0 = p03;
+ z0 = p03 + (u32)4U;
+ x0[0U] = (u64)1U;
+ x0[1U] = (u64)0U;
+ x0[2U] = (u64)0U;
+ x0[3U] = (u64)0U;
+ z0[0U] = (u64)0U;
+ z0[1U] = (u64)0U;
+ z0[2U] = (u64)0U;
+ z0[3U] = (u64)0U;
+ p01_tmp1 = p01_tmp1_swap;
+ p01_tmp11 = p01_tmp1_swap;
+ nq10 = p01_tmp1_swap;
+ nq_p11 = p01_tmp1_swap + (u32)8U;
+ swap1 = p01_tmp1_swap + (u32)32U;
+ cswap2((u64)1U, nq10, nq_p11);
+ point_add_and_double(init1, p01_tmp11, tmp2);
+ swap1[0U] = (u64)1U;
+ {
+ u32 i;
+ for (i = (u32)0U; i < (u32)251U; i = i + (u32)1U) {
+ u64 *p01_tmp12 = p01_tmp1_swap;
+ u64 *swap2 = p01_tmp1_swap + (u32)32U;
+ u64 *nq2 = p01_tmp12;
+ u64 *nq_p12 = p01_tmp12 + (u32)8U;
+ u64 bit = (u64)(key[((u32)253U - i) / (u32)8U] >> ((u32)253U - i) % (u32)8U & (u8)1U);
+ u64 sw = swap2[0U] ^ bit;
+ cswap2(sw, nq2, nq_p12);
+ point_add_and_double(init1, p01_tmp12, tmp2);
+ swap2[0U] = bit;
+ }
+ }
+ sw0 = swap1[0U];
+ cswap2(sw0, nq10, nq_p11);
+ nq1 = p01_tmp1;
+ tmp1 = p01_tmp1 + (u32)16U;
+ point_double(nq1, tmp1, tmp2);
+ point_double(nq1, tmp1, tmp2);
+ point_double(nq1, tmp1, tmp2);
+ memcpy(out, p0, (u32)8U * sizeof(p0[0U]));
+
+ memzero_explicit(tmp2, sizeof(tmp2));
+ memzero_explicit(p01_tmp1_swap, sizeof(p01_tmp1_swap));
+}
+
+static void fsquare_times(u64 *o, const u64 *inp, u64 *tmp, u32 n1)
+{
+ u32 i;
+ fsqr(o, inp, tmp);
+ for (i = (u32)0U; i < n1 - (u32)1U; i = i + (u32)1U)
+ fsqr(o, o, tmp);
+}
+
+static void finv(u64 *o, const u64 *i, u64 *tmp)
+{
+ u64 t1[16U] = { 0U };
+ u64 *a0 = t1;
+ u64 *b = t1 + (u32)4U;
+ u64 *c = t1 + (u32)8U;
+ u64 *t00 = t1 + (u32)12U;
+ u64 *tmp1 = tmp;
+ u64 *a;
+ u64 *t0;
+ fsquare_times(a0, i, tmp1, (u32)1U);
+ fsquare_times(t00, a0, tmp1, (u32)2U);
+ fmul(b, t00, i, tmp);
+ fmul(a0, b, a0, tmp);
+ fsquare_times(t00, a0, tmp1, (u32)1U);
+ fmul(b, t00, b, tmp);
+ fsquare_times(t00, b, tmp1, (u32)5U);
+ fmul(b, t00, b, tmp);
+ fsquare_times(t00, b, tmp1, (u32)10U);
+ fmul(c, t00, b, tmp);
+ fsquare_times(t00, c, tmp1, (u32)20U);
+ fmul(t00, t00, c, tmp);
+ fsquare_times(t00, t00, tmp1, (u32)10U);
+ fmul(b, t00, b, tmp);
+ fsquare_times(t00, b, tmp1, (u32)50U);
+ fmul(c, t00, b, tmp);
+ fsquare_times(t00, c, tmp1, (u32)100U);
+ fmul(t00, t00, c, tmp);
+ fsquare_times(t00, t00, tmp1, (u32)50U);
+ fmul(t00, t00, b, tmp);
+ fsquare_times(t00, t00, tmp1, (u32)5U);
+ a = t1;
+ t0 = t1 + (u32)12U;
+ fmul(o, t0, a, tmp);
+}
+
+static void store_felem(u64 *b, u64 *f)
+{
+ u64 f30 = f[3U];
+ u64 top_bit0 = f30 >> (u32)63U;
+ u64 f31;
+ u64 top_bit;
+ u64 f0;
+ u64 f1;
+ u64 f2;
+ u64 f3;
+ u64 m0;
+ u64 m1;
+ u64 m2;
+ u64 m3;
+ u64 mask;
+ u64 f0_;
+ u64 f1_;
+ u64 f2_;
+ u64 f3_;
+ u64 o0;
+ u64 o1;
+ u64 o2;
+ u64 o3;
+ f[3U] = f30 & (u64)0x7fffffffffffffffU;
+ add_scalar(f, f, (u64)19U * top_bit0);
+ f31 = f[3U];
+ top_bit = f31 >> (u32)63U;
+ f[3U] = f31 & (u64)0x7fffffffffffffffU;
+ add_scalar(f, f, (u64)19U * top_bit);
+ f0 = f[0U];
+ f1 = f[1U];
+ f2 = f[2U];
+ f3 = f[3U];
+ m0 = gte_mask(f0, (u64)0xffffffffffffffedU);
+ m1 = eq_mask(f1, (u64)0xffffffffffffffffU);
+ m2 = eq_mask(f2, (u64)0xffffffffffffffffU);
+ m3 = eq_mask(f3, (u64)0x7fffffffffffffffU);
+ mask = ((m0 & m1) & m2) & m3;
+ f0_ = f0 - (mask & (u64)0xffffffffffffffedU);
+ f1_ = f1 - (mask & (u64)0xffffffffffffffffU);
+ f2_ = f2 - (mask & (u64)0xffffffffffffffffU);
+ f3_ = f3 - (mask & (u64)0x7fffffffffffffffU);
+ o0 = f0_;
+ o1 = f1_;
+ o2 = f2_;
+ o3 = f3_;
+ b[0U] = o0;
+ b[1U] = o1;
+ b[2U] = o2;
+ b[3U] = o3;
+}
+
+static void encode_point(u8 *o, const u64 *i)
+{
+ const u64 *x = i;
+ const u64 *z = i + (u32)4U;
+ u64 tmp[4U] = { 0U };
+ u64 tmp_w[16U] = { 0U };
+ finv(tmp, z, tmp_w);
+ fmul(tmp, tmp, x, tmp_w);
+ store_felem((u64 *)o, tmp);
+}
+
+static void curve25519_ever64(u8 *out, const u8 *priv, const u8 *pub)
+{
+ u64 init1[8U] = { 0U };
+ u64 tmp[4U] = { 0U };
+ u64 tmp3;
+ u64 *x;
+ u64 *z;
+ {
+ u32 i;
+ for (i = (u32)0U; i < (u32)4U; i = i + (u32)1U) {
+ u64 *os = tmp;
+ const u8 *bj = pub + i * (u32)8U;
+ u64 u = *(u64 *)bj;
+ u64 r = u;
+ u64 x0 = r;
+ os[i] = x0;
+ }
+ }
+ tmp3 = tmp[3U];
+ tmp[3U] = tmp3 & (u64)0x7fffffffffffffffU;
+ x = init1;
+ z = init1 + (u32)4U;
+ z[0U] = (u64)1U;
+ z[1U] = (u64)0U;
+ z[2U] = (u64)0U;
+ z[3U] = (u64)0U;
+ x[0U] = tmp[0U];
+ x[1U] = tmp[1U];
+ x[2U] = tmp[2U];
+ x[3U] = tmp[3U];
+ montgomery_ladder(init1, priv, init1);
+ encode_point(out, init1);
+}
+
+/* The below constants were generated using this sage script:
+ *
+ * #!/usr/bin/env sage
+ * import sys
+ * from sage.all import *
+ * def limbs(n):
+ * n = int(n)
+ * l = ((n >> 0) % 2^64, (n >> 64) % 2^64, (n >> 128) % 2^64, (n >> 192) % 2^64)
+ * return "0x%016xULL, 0x%016xULL, 0x%016xULL, 0x%016xULL" % l
+ * ec = EllipticCurve(GF(2^255 - 19), [0, 486662, 0, 1, 0])
+ * p_minus_s = (ec.lift_x(9) - ec.lift_x(1))[0]
+ * print("static const u64 p_minus_s[] = { %s };\n" % limbs(p_minus_s))
+ * print("static const u64 table_ladder[] = {")
+ * p = ec.lift_x(9)
+ * for i in range(252):
+ * l = (p[0] + p[2]) / (p[0] - p[2])
+ * print(("\t%s" + ("," if i != 251 else "")) % limbs(l))
+ * p = p * 2
+ * print("};")
+ *
+ */
+
+static const u64 p_minus_s[] = { 0x816b1e0137d48290ULL, 0x440f6a51eb4d1207ULL, 0x52385f46dca2b71dULL, 0x215132111d8354cbULL };
+
+static const u64 table_ladder[] = {
+ 0xfffffffffffffff3ULL, 0xffffffffffffffffULL, 0xffffffffffffffffULL, 0x5fffffffffffffffULL,
+ 0x6b8220f416aafe96ULL, 0x82ebeb2b4f566a34ULL, 0xd5a9a5b075a5950fULL, 0x5142b2cf4b2488f4ULL,
+ 0x6aaebc750069680cULL, 0x89cf7820a0f99c41ULL, 0x2a58d9183b56d0f4ULL, 0x4b5aca80e36011a4ULL,
+ 0x329132348c29745dULL, 0xf4a2e616e1642fd7ULL, 0x1e45bb03ff67bc34ULL, 0x306912d0f42a9b4aULL,
+ 0xff886507e6af7154ULL, 0x04f50e13dfeec82fULL, 0xaa512fe82abab5ceULL, 0x174e251a68d5f222ULL,
+ 0xcf96700d82028898ULL, 0x1743e3370a2c02c5ULL, 0x379eec98b4e86eaaULL, 0x0c59888a51e0482eULL,
+ 0xfbcbf1d699b5d189ULL, 0xacaef0d58e9fdc84ULL, 0xc1c20d06231f7614ULL, 0x2938218da274f972ULL,
+ 0xf6af49beff1d7f18ULL, 0xcc541c22387ac9c2ULL, 0x96fcc9ef4015c56bULL, 0x69c1627c690913a9ULL,
+ 0x7a86fd2f4733db0eULL, 0xfdb8c4f29e087de9ULL, 0x095e4b1a8ea2a229ULL, 0x1ad7a7c829b37a79ULL,
+ 0x342d89cad17ea0c0ULL, 0x67bedda6cced2051ULL, 0x19ca31bf2bb42f74ULL, 0x3df7b4c84980acbbULL,
+ 0xa8c6444dc80ad883ULL, 0xb91e440366e3ab85ULL, 0xc215cda00164f6d8ULL, 0x3d867c6ef247e668ULL,
+ 0xc7dd582bcc3e658cULL, 0xfd2c4748ee0e5528ULL, 0xa0fd9b95cc9f4f71ULL, 0x7529d871b0675ddfULL,
+ 0xb8f568b42d3cbd78ULL, 0x1233011b91f3da82ULL, 0x2dce6ccd4a7c3b62ULL, 0x75e7fc8e9e498603ULL,
+ 0x2f4f13f1fcd0b6ecULL, 0xf1a8ca1f29ff7a45ULL, 0xc249c1a72981e29bULL, 0x6ebe0dbb8c83b56aULL,
+ 0x7114fa8d170bb222ULL, 0x65a2dcd5bf93935fULL, 0xbdc41f68b59c979aULL, 0x2f0eef79a2ce9289ULL,
+ 0x42ecbf0c083c37ceULL, 0x2930bc09ec496322ULL, 0xf294b0c19cfeac0dULL, 0x3780aa4bedfabb80ULL,
+ 0x56c17d3e7cead929ULL, 0xe7cb4beb2e5722c5ULL, 0x0ce931732dbfe15aULL, 0x41b883c7621052f8ULL,
+ 0xdbf75ca0c3d25350ULL, 0x2936be086eb1e351ULL, 0xc936e03cb4a9b212ULL, 0x1d45bf82322225aaULL,
+ 0xe81ab1036a024cc5ULL, 0xe212201c304c9a72ULL, 0xc5d73fba6832b1fcULL, 0x20ffdb5a4d839581ULL,
+ 0xa283d367be5d0fadULL, 0x6c2b25ca8b164475ULL, 0x9d4935467caaf22eULL, 0x5166408eee85ff49ULL,
+ 0x3c67baa2fab4e361ULL, 0xb3e433c67ef35cefULL, 0x5259729241159b1cULL, 0x6a621892d5b0ab33ULL,
+ 0x20b74a387555cdcbULL, 0x532aa10e1208923fULL, 0xeaa17b7762281dd1ULL, 0x61ab3443f05c44bfULL,
+ 0x257a6c422324def8ULL, 0x131c6c1017e3cf7fULL, 0x23758739f630a257ULL, 0x295a407a01a78580ULL,
+ 0xf8c443246d5da8d9ULL, 0x19d775450c52fa5dULL, 0x2afcfc92731bf83dULL, 0x7d10c8e81b2b4700ULL,
+ 0xc8e0271f70baa20bULL, 0x993748867ca63957ULL, 0x5412efb3cb7ed4bbULL, 0x3196d36173e62975ULL,
+ 0xde5bcad141c7dffcULL, 0x47cc8cd2b395c848ULL, 0xa34cd942e11af3cbULL, 0x0256dbf2d04ecec2ULL,
+ 0x875ab7e94b0e667fULL, 0xcad4dd83c0850d10ULL, 0x47f12e8f4e72c79fULL, 0x5f1a87bb8c85b19bULL,
+ 0x7ae9d0b6437f51b8ULL, 0x12c7ce5518879065ULL, 0x2ade09fe5cf77aeeULL, 0x23a05a2f7d2c5627ULL,
+ 0x5908e128f17c169aULL, 0xf77498dd8ad0852dULL, 0x74b4c4ceab102f64ULL, 0x183abadd10139845ULL,
+ 0xb165ba8daa92aaacULL, 0xd5c5ef9599386705ULL, 0xbe2f8f0cf8fc40d1ULL, 0x2701e635ee204514ULL,
+ 0x629fa80020156514ULL, 0xf223868764a8c1ceULL, 0x5b894fff0b3f060eULL, 0x60d9944cf708a3faULL,
+ 0xaeea001a1c7a201fULL, 0xebf16a633ee2ce63ULL, 0x6f7709594c7a07e1ULL, 0x79b958150d0208cbULL,
+ 0x24b55e5301d410e7ULL, 0xe3a34edff3fdc84dULL, 0xd88768e4904032d8ULL, 0x131384427b3aaeecULL,
+ 0x8405e51286234f14ULL, 0x14dc4739adb4c529ULL, 0xb8a2b5b250634ffdULL, 0x2fe2a94ad8a7ff93ULL,
+ 0xec5c57efe843faddULL, 0x2843ce40f0bb9918ULL, 0xa4b561d6cf3d6305ULL, 0x743629bde8fb777eULL,
+ 0x343edd46bbaf738fULL, 0xed981828b101a651ULL, 0xa401760b882c797aULL, 0x1fc223e28dc88730ULL,
+ 0x48604e91fc0fba0eULL, 0xb637f78f052c6fa4ULL, 0x91ccac3d09e9239cULL, 0x23f7eed4437a687cULL,
+ 0x5173b1118d9bd800ULL, 0x29d641b63189d4a7ULL, 0xfdbf177988bbc586ULL, 0x2959894fcad81df5ULL,
+ 0xaebc8ef3b4bbc899ULL, 0x4148995ab26992b9ULL, 0x24e20b0134f92cfbULL, 0x40d158894a05dee8ULL,
+ 0x46b00b1185af76f6ULL, 0x26bac77873187a79ULL, 0x3dc0bf95ab8fff5fULL, 0x2a608bd8945524d7ULL,
+ 0x26449588bd446302ULL, 0x7c4bc21c0388439cULL, 0x8e98a4f383bd11b2ULL, 0x26218d7bc9d876b9ULL,
+ 0xe3081542997c178aULL, 0x3c2d29a86fb6606fULL, 0x5c217736fa279374ULL, 0x7dde05734afeb1faULL,
+ 0x3bf10e3906d42babULL, 0xe4f7803e1980649cULL, 0xe6053bf89595bf7aULL, 0x394faf38da245530ULL,
+ 0x7a8efb58896928f4ULL, 0xfbc778e9cc6a113cULL, 0x72670ce330af596fULL, 0x48f222a81d3d6cf7ULL,
+ 0xf01fce410d72caa7ULL, 0x5a20ecc7213b5595ULL, 0x7bc21165c1fa1483ULL, 0x07f89ae31da8a741ULL,
+ 0x05d2c2b4c6830ff9ULL, 0xd43e330fc6316293ULL, 0xa5a5590a96d3a904ULL, 0x705edb91a65333b6ULL,
+ 0x048ee15e0bb9a5f7ULL, 0x3240cfca9e0aaf5dULL, 0x8f4b71ceedc4a40bULL, 0x621c0da3de544a6dULL,
+ 0x92872836a08c4091ULL, 0xce8375b010c91445ULL, 0x8a72eb524f276394ULL, 0x2667fcfa7ec83635ULL,
+ 0x7f4c173345e8752aULL, 0x061b47feee7079a5ULL, 0x25dd9afa9f86ff34ULL, 0x3780cef5425dc89cULL,
+ 0x1a46035a513bb4e9ULL, 0x3e1ef379ac575adaULL, 0xc78c5f1c5fa24b50ULL, 0x321a967634fd9f22ULL,
+ 0x946707b8826e27faULL, 0x3dca84d64c506fd0ULL, 0xc189218075e91436ULL, 0x6d9284169b3b8484ULL,
+ 0x3a67e840383f2ddfULL, 0x33eec9a30c4f9b75ULL, 0x3ec7c86fa783ef47ULL, 0x26ec449fbac9fbc4ULL,
+ 0x5c0f38cba09b9e7dULL, 0x81168cc762a3478cULL, 0x3e23b0d306fc121cULL, 0x5a238aa0a5efdcddULL,
+ 0x1ba26121c4ea43ffULL, 0x36f8c77f7c8832b5ULL, 0x88fbea0b0adcf99aULL, 0x5ca9938ec25bebf9ULL,
+ 0xd5436a5e51fccda0ULL, 0x1dbc4797c2cd893bULL, 0x19346a65d3224a08ULL, 0x0f5034e49b9af466ULL,
+ 0xf23c3967a1e0b96eULL, 0xe58b08fa867a4d88ULL, 0xfb2fabc6a7341679ULL, 0x2a75381eb6026946ULL,
+ 0xc80a3be4c19420acULL, 0x66b1f6c681f2b6dcULL, 0x7cf7036761e93388ULL, 0x25abbbd8a660a4c4ULL,
+ 0x91ea12ba14fd5198ULL, 0x684950fc4a3cffa9ULL, 0xf826842130f5ad28ULL, 0x3ea988f75301a441ULL,
+ 0xc978109a695f8c6fULL, 0x1746eb4a0530c3f3ULL, 0x444d6d77b4459995ULL, 0x75952b8c054e5cc7ULL,
+ 0xa3703f7915f4d6aaULL, 0x66c346202f2647d8ULL, 0xd01469df811d644bULL, 0x77fea47d81a5d71fULL,
+ 0xc5e9529ef57ca381ULL, 0x6eeeb4b9ce2f881aULL, 0xb6e91a28e8009bd6ULL, 0x4b80be3e9afc3fecULL,
+ 0x7e3773c526aed2c5ULL, 0x1b4afcb453c9a49dULL, 0xa920bdd7baffb24dULL, 0x7c54699f122d400eULL,
+ 0xef46c8e14fa94bc8ULL, 0xe0b074ce2952ed5eULL, 0xbea450e1dbd885d5ULL, 0x61b68649320f712cULL,
+ 0x8a485f7309ccbdd1ULL, 0xbd06320d7d4d1a2dULL, 0x25232973322dbef4ULL, 0x445dc4758c17f770ULL,
+ 0xdb0434177cc8933cULL, 0xed6fe82175ea059fULL, 0x1efebefdc053db34ULL, 0x4adbe867c65daf99ULL,
+ 0x3acd71a2a90609dfULL, 0xe5e991856dd04050ULL, 0x1ec69b688157c23cULL, 0x697427f6885cfe4dULL,
+ 0xd7be7b9b65e1a851ULL, 0xa03d28d522c536ddULL, 0x28399d658fd2b645ULL, 0x49e5b7e17c2641e1ULL,
+ 0x6f8c3a98700457a4ULL, 0x5078f0a25ebb6778ULL, 0xd13c3ccbc382960fULL, 0x2e003258a7df84b1ULL,
+ 0x8ad1f39be6296a1cULL, 0xc1eeaa652a5fbfb2ULL, 0x33ee0673fd26f3cbULL, 0x59256173a69d2cccULL,
+ 0x41ea07aa4e18fc41ULL, 0xd9fc19527c87a51eULL, 0xbdaacb805831ca6fULL, 0x445b652dc916694fULL,
+ 0xce92a3a7f2172315ULL, 0x1edc282de11b9964ULL, 0xa1823aafe04c314aULL, 0x790a2d94437cf586ULL,
+ 0x71c447fb93f6e009ULL, 0x8922a56722845276ULL, 0xbf70903b204f5169ULL, 0x2f7a89891ba319feULL,
+ 0x02a08eb577e2140cULL, 0xed9a4ed4427bdcf4ULL, 0x5253ec44e4323cd1ULL, 0x3e88363c14e9355bULL,
+ 0xaa66c14277110b8cULL, 0x1ae0391610a23390ULL, 0x2030bd12c93fc2a2ULL, 0x3ee141579555c7abULL,
+ 0x9214de3a6d6e7d41ULL, 0x3ccdd88607f17efeULL, 0x674f1288f8e11217ULL, 0x5682250f329f93d0ULL,
+ 0x6cf00b136d2e396eULL, 0x6e4cf86f1014debfULL, 0x5930b1b5bfcc4e83ULL, 0x047069b48aba16b6ULL,
+ 0x0d4ce4ab69b20793ULL, 0xb24db91a97d0fb9eULL, 0xcdfa50f54e00d01dULL, 0x221b1085368bddb5ULL,
+ 0xe7e59468b1e3d8d2ULL, 0x53c56563bd122f93ULL, 0xeee8a903e0663f09ULL, 0x61efa662cbbe3d42ULL,
+ 0x2cf8ddddde6eab2aULL, 0x9bf80ad51435f231ULL, 0x5deadacec9f04973ULL, 0x29275b5d41d29b27ULL,
+ 0xcfde0f0895ebf14fULL, 0xb9aab96b054905a7ULL, 0xcae80dd9a1c420fdULL, 0x0a63bf2f1673bbc7ULL,
+ 0x092f6e11958fbc8cULL, 0x672a81e804822fadULL, 0xcac8351560d52517ULL, 0x6f3f7722c8f192f8ULL,
+ 0xf8ba90ccc2e894b7ULL, 0x2c7557a438ff9f0dULL, 0x894d1d855ae52359ULL, 0x68e122157b743d69ULL,
+ 0xd87e5570cfb919f3ULL, 0x3f2cdecd95798db9ULL, 0x2121154710c0a2ceULL, 0x3c66a115246dc5b2ULL,
+ 0xcbedc562294ecb72ULL, 0xba7143c36a280b16ULL, 0x9610c2efd4078b67ULL, 0x6144735d946a4b1eULL,
+ 0x536f111ed75b3350ULL, 0x0211db8c2041d81bULL, 0xf93cb1000e10413cULL, 0x149dfd3c039e8876ULL,
+ 0xd479dde46b63155bULL, 0xb66e15e93c837976ULL, 0xdafde43b1f13e038ULL, 0x5fafda1a2e4b0b35ULL,
+ 0x3600bbdf17197581ULL, 0x3972050bbe3cd2c2ULL, 0x5938906dbdd5be86ULL, 0x34fce5e43f9b860fULL,
+ 0x75a8a4cd42d14d02ULL, 0x828dabc53441df65ULL, 0x33dcabedd2e131d3ULL, 0x3ebad76fb814d25fULL,
+ 0xd4906f566f70e10fULL, 0x5d12f7aa51690f5aULL, 0x45adb16e76cefcf2ULL, 0x01f768aead232999ULL,
+ 0x2b6cc77b6248febdULL, 0x3cd30628ec3aaffdULL, 0xce1c0b80d4ef486aULL, 0x4c3bff2ea6f66c23ULL,
+ 0x3f2ec4094aeaeb5fULL, 0x61b19b286e372ca7ULL, 0x5eefa966de2a701dULL, 0x23b20565de55e3efULL,
+ 0xe301ca5279d58557ULL, 0x07b2d4ce27c2874fULL, 0xa532cd8a9dcf1d67ULL, 0x2a52fee23f2bff56ULL,
+ 0x8624efb37cd8663dULL, 0xbbc7ac20ffbd7594ULL, 0x57b85e9c82d37445ULL, 0x7b3052cb86a6ec66ULL,
+ 0x3482f0ad2525e91eULL, 0x2cb68043d28edca0ULL, 0xaf4f6d052e1b003aULL, 0x185f8c2529781b0aULL,
+ 0xaa41de5bd80ce0d6ULL, 0x9407b2416853e9d6ULL, 0x563ec36e357f4c3aULL, 0x4cc4b8dd0e297bceULL,
+ 0xa2fc1a52ffb8730eULL, 0x1811f16e67058e37ULL, 0x10f9a366cddf4ee1ULL, 0x72f4a0c4a0b9f099ULL,
+ 0x8c16c06f663f4ea7ULL, 0x693b3af74e970fbaULL, 0x2102e7f1d69ec345ULL, 0x0ba53cbc968a8089ULL,
+ 0xca3d9dc7fea15537ULL, 0x4c6824bb51536493ULL, 0xb9886314844006b1ULL, 0x40d2a72ab454cc60ULL,
+ 0x5936a1b712570975ULL, 0x91b9d648debda657ULL, 0x3344094bb64330eaULL, 0x006ba10d12ee51d0ULL,
+ 0x19228468f5de5d58ULL, 0x0eb12f4c38cc05b0ULL, 0xa1039f9dd5601990ULL, 0x4502d4ce4fff0e0bULL,
+ 0xeb2054106837c189ULL, 0xd0f6544c6dd3b93cULL, 0x40727064c416d74fULL, 0x6e15c6114b502ef0ULL,
+ 0x4df2a398cfb1a76bULL, 0x11256c7419f2f6b1ULL, 0x4a497962066e6043ULL, 0x705b3aab41355b44ULL,
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+ 0x7b0b9239fa75e03eULL, 0xefe9fb684633c083ULL, 0x98a35fbe391a7793ULL, 0x6065510fe2d0fe34ULL,
+ 0x55cb668548abad0cULL, 0xb4584548da87e527ULL, 0x2c43ecea0107c1ddULL, 0x526028809372de35ULL,
+ 0x3415c56af9213b1fULL, 0x5bee1a4d017e98dbULL, 0x13f6b105b5cf709bULL, 0x5ff20e3482b29ab6ULL,
+ 0x0aa29c75cc2e6c90ULL, 0xfc7d73ca3a70e206ULL, 0x899fc38fc4b5c515ULL, 0x250386b124ffc207ULL,
+ 0x54ea28d5ae3d2b56ULL, 0x9913149dd6de60ceULL, 0x16694fc58f06d6c1ULL, 0x46b23975eb018fc7ULL,
+ 0x470a6a0fb4b7b4e2ULL, 0x5d92475a8f7253deULL, 0xabeee5b52fbd3adbULL, 0x7fa20801a0806968ULL,
+ 0x76f3faf19f7714d2ULL, 0xb3e840c12f4660c3ULL, 0x0fb4cd8df212744eULL, 0x4b065a251d3a2dd2ULL,
+ 0x5cebde383d77cd4aULL, 0x6adf39df882c9cb1ULL, 0xa2dd242eb09af759ULL, 0x3147c0e50e5f6422ULL,
+ 0x164ca5101d1350dbULL, 0xf8d13479c33fc962ULL, 0xe640ce4d13e5da08ULL, 0x4bdee0c45061f8baULL,
+ 0xd7c46dc1a4edb1c9ULL, 0x5514d7b6437fd98aULL, 0x58942f6bb2a1c00bULL, 0x2dffb2ab1d70710eULL,
+ 0xccdfcf2fc18b6d68ULL, 0xa8ebcba8b7806167ULL, 0x980697f95e2937e3ULL, 0x02fbba1cd0126e8cULL
+};
+
+static void curve25519_ever64_base(u8 *out, const u8 *priv)
+{
+ u64 swap = 1;
+ int i, j, k;
+ u64 tmp[16 + 32 + 4];
+ u64 *x1 = &tmp[0];
+ u64 *z1 = &tmp[4];
+ u64 *x2 = &tmp[8];
+ u64 *z2 = &tmp[12];
+ u64 *xz1 = &tmp[0];
+ u64 *xz2 = &tmp[8];
+ u64 *a = &tmp[0 + 16];
+ u64 *b = &tmp[4 + 16];
+ u64 *c = &tmp[8 + 16];
+ u64 *ab = &tmp[0 + 16];
+ u64 *abcd = &tmp[0 + 16];
+ u64 *ef = &tmp[16 + 16];
+ u64 *efgh = &tmp[16 + 16];
+ u64 *key = &tmp[0 + 16 + 32];
+
+ memcpy(key, priv, 32);
+ ((u8 *)key)[0] &= 248;
+ ((u8 *)key)[31] = (((u8 *)key)[31] & 127) | 64;
+
+ x1[0] = 1, x1[1] = x1[2] = x1[3] = 0;
+ z1[0] = 1, z1[1] = z1[2] = z1[3] = 0;
+ z2[0] = 1, z2[1] = z2[2] = z2[3] = 0;
+ memcpy(x2, p_minus_s, sizeof(p_minus_s));
+
+ j = 3;
+ for (i = 0; i < 4; ++i) {
+ while (j < (const int[]){ 64, 64, 64, 63 }[i]) {
+ u64 bit = (key[i] >> j) & 1;
+ k = (64 * i + j - 3);
+ swap = swap ^ bit;
+ cswap2(swap, xz1, xz2);
+ swap = bit;
+ fsub(b, x1, z1);
+ fadd(a, x1, z1);
+ fmul(c, &table_ladder[4 * k], b, ef);
+ fsub(b, a, c);
+ fadd(a, a, c);
+ fsqr2(ab, ab, efgh);
+ fmul2(xz1, xz2, ab, efgh);
+ ++j;
+ }
+ j = 0;
+ }
+
+ point_double(xz1, abcd, efgh);
+ point_double(xz1, abcd, efgh);
+ point_double(xz1, abcd, efgh);
+ encode_point(out, xz1);
+
+ memzero_explicit(tmp, sizeof(tmp));
+}
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(curve25519_use_bmi2_adx);
+
+void curve25519_arch(u8 mypublic[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE],
+ const u8 basepoint[CURVE25519_KEY_SIZE])
+{
+ if (static_branch_likely(&curve25519_use_bmi2_adx))
+ curve25519_ever64(mypublic, secret, basepoint);
+ else
+ curve25519_generic(mypublic, secret, basepoint);
+}
+EXPORT_SYMBOL(curve25519_arch);
+
+void curve25519_base_arch(u8 pub[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE])
+{
+ if (static_branch_likely(&curve25519_use_bmi2_adx))
+ curve25519_ever64_base(pub, secret);
+ else
+ curve25519_generic(pub, secret, curve25519_base_point);
+}
+EXPORT_SYMBOL(curve25519_base_arch);
+
+static int curve25519_set_secret(struct crypto_kpp *tfm, const void *buf,
+ unsigned int len)
+{
+ u8 *secret = kpp_tfm_ctx(tfm);
+
+ if (!len)
+ curve25519_generate_secret(secret);
+ else if (len == CURVE25519_KEY_SIZE &&
+ crypto_memneq(buf, curve25519_null_point, CURVE25519_KEY_SIZE))
+ memcpy(secret, buf, CURVE25519_KEY_SIZE);
+ else
+ return -EINVAL;
+ return 0;
+}
+
+static int curve25519_generate_public_key(struct kpp_request *req)
+{
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+ const u8 *secret = kpp_tfm_ctx(tfm);
+ u8 buf[CURVE25519_KEY_SIZE];
+ int copied, nbytes;
+
+ if (req->src)
+ return -EINVAL;
+
+ curve25519_base_arch(buf, secret);
+
+ /* might want less than we've got */
+ nbytes = min_t(size_t, CURVE25519_KEY_SIZE, req->dst_len);
+ copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst,
+ nbytes),
+ buf, nbytes);
+ if (copied != nbytes)
+ return -EINVAL;
+ return 0;
+}
+
+static int curve25519_compute_shared_secret(struct kpp_request *req)
+{
+ struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
+ const u8 *secret = kpp_tfm_ctx(tfm);
+ u8 public_key[CURVE25519_KEY_SIZE];
+ u8 buf[CURVE25519_KEY_SIZE];
+ int copied, nbytes;
+
+ if (!req->src)
+ return -EINVAL;
+
+ copied = sg_copy_to_buffer(req->src,
+ sg_nents_for_len(req->src,
+ CURVE25519_KEY_SIZE),
+ public_key, CURVE25519_KEY_SIZE);
+ if (copied != CURVE25519_KEY_SIZE)
+ return -EINVAL;
+
+ curve25519_arch(buf, secret, public_key);
+
+ /* might want less than we've got */
+ nbytes = min_t(size_t, CURVE25519_KEY_SIZE, req->dst_len);
+ copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst,
+ nbytes),
+ buf, nbytes);
+ if (copied != nbytes)
+ return -EINVAL;
+ return 0;
+}
+
+static unsigned int curve25519_max_size(struct crypto_kpp *tfm)
+{
+ return CURVE25519_KEY_SIZE;
+}
+
+static struct kpp_alg curve25519_alg = {
+ .base.cra_name = "curve25519",
+ .base.cra_driver_name = "curve25519-x86",
+ .base.cra_priority = 200,
+ .base.cra_module = THIS_MODULE,
+ .base.cra_ctxsize = CURVE25519_KEY_SIZE,
+
+ .set_secret = curve25519_set_secret,
+ .generate_public_key = curve25519_generate_public_key,
+ .compute_shared_secret = curve25519_compute_shared_secret,
+ .max_size = curve25519_max_size,
+};
+
+
+static int __init curve25519_mod_init(void)
+{
+ if (boot_cpu_has(X86_FEATURE_BMI2) && boot_cpu_has(X86_FEATURE_ADX))
+ static_branch_enable(&curve25519_use_bmi2_adx);
+ else
+ return 0;
+ return IS_REACHABLE(CONFIG_CRYPTO_KPP) ?
+ crypto_register_kpp(&curve25519_alg) : 0;
+}
+
+static void __exit curve25519_mod_exit(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_KPP) &&
+ static_branch_likely(&curve25519_use_bmi2_adx))
+ crypto_unregister_kpp(&curve25519_alg);
+}
+
+module_init(curve25519_mod_init);
+module_exit(curve25519_mod_exit);
+
+MODULE_ALIAS_CRYPTO("curve25519");
+MODULE_ALIAS_CRYPTO("curve25519-x86");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
diff --git a/arch/x86/crypto/des3_ede-asm_64.S b/arch/x86/crypto/des3_ede-asm_64.S
new file mode 100644
index 000000000000..cf21b998e77c
--- /dev/null
+++ b/arch/x86/crypto/des3_ede-asm_64.S
@@ -0,0 +1,831 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * des3_ede-asm_64.S - x86-64 assembly implementation of 3DES cipher
+ *
+ * Copyright Ā© 2014 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ */
+
+#include <linux/linkage.h>
+
+.file "des3_ede-asm_64.S"
+.text
+
+#define s1 .L_s1
+#define s2 ((s1) + (64*8))
+#define s3 ((s2) + (64*8))
+#define s4 ((s3) + (64*8))
+#define s5 ((s4) + (64*8))
+#define s6 ((s5) + (64*8))
+#define s7 ((s6) + (64*8))
+#define s8 ((s7) + (64*8))
+
+/* register macros */
+#define CTX %rdi
+
+#define RL0 %r8
+#define RL1 %r9
+#define RL2 %r10
+
+#define RL0d %r8d
+#define RL1d %r9d
+#define RL2d %r10d
+
+#define RR0 %r11
+#define RR1 %r12
+#define RR2 %r13
+
+#define RR0d %r11d
+#define RR1d %r12d
+#define RR2d %r13d
+
+#define RW0 %rax
+#define RW1 %rbx
+#define RW2 %rcx
+
+#define RW0d %eax
+#define RW1d %ebx
+#define RW2d %ecx
+
+#define RW0bl %al
+#define RW1bl %bl
+#define RW2bl %cl
+
+#define RW0bh %ah
+#define RW1bh %bh
+#define RW2bh %ch
+
+#define RT0 %r15
+#define RT1 %rsi
+#define RT2 %r14
+#define RT3 %rdx
+
+#define RT0d %r15d
+#define RT1d %esi
+#define RT2d %r14d
+#define RT3d %edx
+
+/***********************************************************************
+ * 1-way 3DES
+ ***********************************************************************/
+#define do_permutation(a, b, offset, mask) \
+ movl a, RT0d; \
+ shrl $(offset), RT0d; \
+ xorl b, RT0d; \
+ andl $(mask), RT0d; \
+ xorl RT0d, b; \
+ shll $(offset), RT0d; \
+ xorl RT0d, a;
+
+#define expand_to_64bits(val, mask) \
+ movl val##d, RT0d; \
+ rorl $4, RT0d; \
+ shlq $32, RT0; \
+ orq RT0, val; \
+ andq mask, val;
+
+#define compress_to_64bits(val) \
+ movq val, RT0; \
+ shrq $32, RT0; \
+ roll $4, RT0d; \
+ orl RT0d, val##d;
+
+#define initial_permutation(left, right) \
+ do_permutation(left##d, right##d, 4, 0x0f0f0f0f); \
+ do_permutation(left##d, right##d, 16, 0x0000ffff); \
+ do_permutation(right##d, left##d, 2, 0x33333333); \
+ do_permutation(right##d, left##d, 8, 0x00ff00ff); \
+ movabs $0x3f3f3f3f3f3f3f3f, RT3; \
+ movl left##d, RW0d; \
+ roll $1, right##d; \
+ xorl right##d, RW0d; \
+ andl $0xaaaaaaaa, RW0d; \
+ xorl RW0d, left##d; \
+ xorl RW0d, right##d; \
+ roll $1, left##d; \
+ expand_to_64bits(right, RT3); \
+ expand_to_64bits(left, RT3);
+
+#define final_permutation(left, right) \
+ compress_to_64bits(right); \
+ compress_to_64bits(left); \
+ movl right##d, RW0d; \
+ rorl $1, left##d; \
+ xorl left##d, RW0d; \
+ andl $0xaaaaaaaa, RW0d; \
+ xorl RW0d, right##d; \
+ xorl RW0d, left##d; \
+ rorl $1, right##d; \
+ do_permutation(right##d, left##d, 8, 0x00ff00ff); \
+ do_permutation(right##d, left##d, 2, 0x33333333); \
+ do_permutation(left##d, right##d, 16, 0x0000ffff); \
+ do_permutation(left##d, right##d, 4, 0x0f0f0f0f);
+
+#define round1(n, from, to, load_next_key) \
+ xorq from, RW0; \
+ \
+ movzbl RW0bl, RT0d; \
+ movzbl RW0bh, RT1d; \
+ shrq $16, RW0; \
+ movzbl RW0bl, RT2d; \
+ movzbl RW0bh, RT3d; \
+ shrq $16, RW0; \
+ leaq s8(%rip), RW1; \
+ movq (RW1, RT0, 8), RT0; \
+ leaq s6(%rip), RW1; \
+ xorq (RW1, RT1, 8), to; \
+ movzbl RW0bl, RL1d; \
+ movzbl RW0bh, RT1d; \
+ shrl $16, RW0d; \
+ leaq s4(%rip), RW1; \
+ xorq (RW1, RT2, 8), RT0; \
+ leaq s2(%rip), RW1; \
+ xorq (RW1, RT3, 8), to; \
+ movzbl RW0bl, RT2d; \
+ movzbl RW0bh, RT3d; \
+ leaq s7(%rip), RW1; \
+ xorq (RW1, RL1, 8), RT0; \
+ leaq s5(%rip), RW1; \
+ xorq (RW1, RT1, 8), to; \
+ leaq s3(%rip), RW1; \
+ xorq (RW1, RT2, 8), RT0; \
+ load_next_key(n, RW0); \
+ xorq RT0, to; \
+ leaq s1(%rip), RW1; \
+ xorq (RW1, RT3, 8), to; \
+
+#define load_next_key(n, RWx) \
+ movq (((n) + 1) * 8)(CTX), RWx;
+
+#define dummy2(a, b) /*_*/
+
+#define read_block(io, left, right) \
+ movl (io), left##d; \
+ movl 4(io), right##d; \
+ bswapl left##d; \
+ bswapl right##d;
+
+#define write_block(io, left, right) \
+ bswapl left##d; \
+ bswapl right##d; \
+ movl left##d, (io); \
+ movl right##d, 4(io);
+
+SYM_FUNC_START(des3_ede_x86_64_crypt_blk)
+ /* input:
+ * %rdi: round keys, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ pushq %rbx;
+ pushq %r12;
+ pushq %r13;
+ pushq %r14;
+ pushq %r15;
+
+ pushq %rsi; /* dst */
+
+ read_block(%rdx, RL0, RR0);
+ initial_permutation(RL0, RR0);
+
+ movq (CTX), RW0;
+
+ round1(0, RR0, RL0, load_next_key);
+ round1(1, RL0, RR0, load_next_key);
+ round1(2, RR0, RL0, load_next_key);
+ round1(3, RL0, RR0, load_next_key);
+ round1(4, RR0, RL0, load_next_key);
+ round1(5, RL0, RR0, load_next_key);
+ round1(6, RR0, RL0, load_next_key);
+ round1(7, RL0, RR0, load_next_key);
+ round1(8, RR0, RL0, load_next_key);
+ round1(9, RL0, RR0, load_next_key);
+ round1(10, RR0, RL0, load_next_key);
+ round1(11, RL0, RR0, load_next_key);
+ round1(12, RR0, RL0, load_next_key);
+ round1(13, RL0, RR0, load_next_key);
+ round1(14, RR0, RL0, load_next_key);
+ round1(15, RL0, RR0, load_next_key);
+
+ round1(16+0, RL0, RR0, load_next_key);
+ round1(16+1, RR0, RL0, load_next_key);
+ round1(16+2, RL0, RR0, load_next_key);
+ round1(16+3, RR0, RL0, load_next_key);
+ round1(16+4, RL0, RR0, load_next_key);
+ round1(16+5, RR0, RL0, load_next_key);
+ round1(16+6, RL0, RR0, load_next_key);
+ round1(16+7, RR0, RL0, load_next_key);
+ round1(16+8, RL0, RR0, load_next_key);
+ round1(16+9, RR0, RL0, load_next_key);
+ round1(16+10, RL0, RR0, load_next_key);
+ round1(16+11, RR0, RL0, load_next_key);
+ round1(16+12, RL0, RR0, load_next_key);
+ round1(16+13, RR0, RL0, load_next_key);
+ round1(16+14, RL0, RR0, load_next_key);
+ round1(16+15, RR0, RL0, load_next_key);
+
+ round1(32+0, RR0, RL0, load_next_key);
+ round1(32+1, RL0, RR0, load_next_key);
+ round1(32+2, RR0, RL0, load_next_key);
+ round1(32+3, RL0, RR0, load_next_key);
+ round1(32+4, RR0, RL0, load_next_key);
+ round1(32+5, RL0, RR0, load_next_key);
+ round1(32+6, RR0, RL0, load_next_key);
+ round1(32+7, RL0, RR0, load_next_key);
+ round1(32+8, RR0, RL0, load_next_key);
+ round1(32+9, RL0, RR0, load_next_key);
+ round1(32+10, RR0, RL0, load_next_key);
+ round1(32+11, RL0, RR0, load_next_key);
+ round1(32+12, RR0, RL0, load_next_key);
+ round1(32+13, RL0, RR0, load_next_key);
+ round1(32+14, RR0, RL0, load_next_key);
+ round1(32+15, RL0, RR0, dummy2);
+
+ final_permutation(RR0, RL0);
+
+ popq %rsi /* dst */
+ write_block(%rsi, RR0, RL0);
+
+ popq %r15;
+ popq %r14;
+ popq %r13;
+ popq %r12;
+ popq %rbx;
+
+ RET;
+SYM_FUNC_END(des3_ede_x86_64_crypt_blk)
+
+/***********************************************************************
+ * 3-way 3DES
+ ***********************************************************************/
+#define expand_to_64bits(val, mask) \
+ movl val##d, RT0d; \
+ rorl $4, RT0d; \
+ shlq $32, RT0; \
+ orq RT0, val; \
+ andq mask, val;
+
+#define compress_to_64bits(val) \
+ movq val, RT0; \
+ shrq $32, RT0; \
+ roll $4, RT0d; \
+ orl RT0d, val##d;
+
+#define initial_permutation3(left, right) \
+ do_permutation(left##0d, right##0d, 4, 0x0f0f0f0f); \
+ do_permutation(left##0d, right##0d, 16, 0x0000ffff); \
+ do_permutation(left##1d, right##1d, 4, 0x0f0f0f0f); \
+ do_permutation(left##1d, right##1d, 16, 0x0000ffff); \
+ do_permutation(left##2d, right##2d, 4, 0x0f0f0f0f); \
+ do_permutation(left##2d, right##2d, 16, 0x0000ffff); \
+ \
+ do_permutation(right##0d, left##0d, 2, 0x33333333); \
+ do_permutation(right##0d, left##0d, 8, 0x00ff00ff); \
+ do_permutation(right##1d, left##1d, 2, 0x33333333); \
+ do_permutation(right##1d, left##1d, 8, 0x00ff00ff); \
+ do_permutation(right##2d, left##2d, 2, 0x33333333); \
+ do_permutation(right##2d, left##2d, 8, 0x00ff00ff); \
+ \
+ movabs $0x3f3f3f3f3f3f3f3f, RT3; \
+ \
+ movl left##0d, RW0d; \
+ roll $1, right##0d; \
+ xorl right##0d, RW0d; \
+ andl $0xaaaaaaaa, RW0d; \
+ xorl RW0d, left##0d; \
+ xorl RW0d, right##0d; \
+ roll $1, left##0d; \
+ expand_to_64bits(right##0, RT3); \
+ expand_to_64bits(left##0, RT3); \
+ movl left##1d, RW1d; \
+ roll $1, right##1d; \
+ xorl right##1d, RW1d; \
+ andl $0xaaaaaaaa, RW1d; \
+ xorl RW1d, left##1d; \
+ xorl RW1d, right##1d; \
+ roll $1, left##1d; \
+ expand_to_64bits(right##1, RT3); \
+ expand_to_64bits(left##1, RT3); \
+ movl left##2d, RW2d; \
+ roll $1, right##2d; \
+ xorl right##2d, RW2d; \
+ andl $0xaaaaaaaa, RW2d; \
+ xorl RW2d, left##2d; \
+ xorl RW2d, right##2d; \
+ roll $1, left##2d; \
+ expand_to_64bits(right##2, RT3); \
+ expand_to_64bits(left##2, RT3);
+
+#define final_permutation3(left, right) \
+ compress_to_64bits(right##0); \
+ compress_to_64bits(left##0); \
+ movl right##0d, RW0d; \
+ rorl $1, left##0d; \
+ xorl left##0d, RW0d; \
+ andl $0xaaaaaaaa, RW0d; \
+ xorl RW0d, right##0d; \
+ xorl RW0d, left##0d; \
+ rorl $1, right##0d; \
+ compress_to_64bits(right##1); \
+ compress_to_64bits(left##1); \
+ movl right##1d, RW1d; \
+ rorl $1, left##1d; \
+ xorl left##1d, RW1d; \
+ andl $0xaaaaaaaa, RW1d; \
+ xorl RW1d, right##1d; \
+ xorl RW1d, left##1d; \
+ rorl $1, right##1d; \
+ compress_to_64bits(right##2); \
+ compress_to_64bits(left##2); \
+ movl right##2d, RW2d; \
+ rorl $1, left##2d; \
+ xorl left##2d, RW2d; \
+ andl $0xaaaaaaaa, RW2d; \
+ xorl RW2d, right##2d; \
+ xorl RW2d, left##2d; \
+ rorl $1, right##2d; \
+ \
+ do_permutation(right##0d, left##0d, 8, 0x00ff00ff); \
+ do_permutation(right##0d, left##0d, 2, 0x33333333); \
+ do_permutation(right##1d, left##1d, 8, 0x00ff00ff); \
+ do_permutation(right##1d, left##1d, 2, 0x33333333); \
+ do_permutation(right##2d, left##2d, 8, 0x00ff00ff); \
+ do_permutation(right##2d, left##2d, 2, 0x33333333); \
+ \
+ do_permutation(left##0d, right##0d, 16, 0x0000ffff); \
+ do_permutation(left##0d, right##0d, 4, 0x0f0f0f0f); \
+ do_permutation(left##1d, right##1d, 16, 0x0000ffff); \
+ do_permutation(left##1d, right##1d, 4, 0x0f0f0f0f); \
+ do_permutation(left##2d, right##2d, 16, 0x0000ffff); \
+ do_permutation(left##2d, right##2d, 4, 0x0f0f0f0f);
+
+#define round3(n, from, to, load_next_key, do_movq) \
+ xorq from##0, RW0; \
+ movzbl RW0bl, RT3d; \
+ movzbl RW0bh, RT1d; \
+ shrq $16, RW0; \
+ leaq s8(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##0; \
+ leaq s6(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##0; \
+ movzbl RW0bl, RT3d; \
+ movzbl RW0bh, RT1d; \
+ shrq $16, RW0; \
+ leaq s4(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##0; \
+ leaq s2(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##0; \
+ movzbl RW0bl, RT3d; \
+ movzbl RW0bh, RT1d; \
+ shrl $16, RW0d; \
+ leaq s7(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##0; \
+ leaq s5(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##0; \
+ movzbl RW0bl, RT3d; \
+ movzbl RW0bh, RT1d; \
+ load_next_key(n, RW0); \
+ leaq s3(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##0; \
+ leaq s1(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##0; \
+ xorq from##1, RW1; \
+ movzbl RW1bl, RT3d; \
+ movzbl RW1bh, RT1d; \
+ shrq $16, RW1; \
+ leaq s8(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##1; \
+ leaq s6(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##1; \
+ movzbl RW1bl, RT3d; \
+ movzbl RW1bh, RT1d; \
+ shrq $16, RW1; \
+ leaq s4(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##1; \
+ leaq s2(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##1; \
+ movzbl RW1bl, RT3d; \
+ movzbl RW1bh, RT1d; \
+ shrl $16, RW1d; \
+ leaq s7(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##1; \
+ leaq s5(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##1; \
+ movzbl RW1bl, RT3d; \
+ movzbl RW1bh, RT1d; \
+ do_movq(RW0, RW1); \
+ leaq s3(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##1; \
+ leaq s1(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##1; \
+ xorq from##2, RW2; \
+ movzbl RW2bl, RT3d; \
+ movzbl RW2bh, RT1d; \
+ shrq $16, RW2; \
+ leaq s8(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##2; \
+ leaq s6(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##2; \
+ movzbl RW2bl, RT3d; \
+ movzbl RW2bh, RT1d; \
+ shrq $16, RW2; \
+ leaq s4(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##2; \
+ leaq s2(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##2; \
+ movzbl RW2bl, RT3d; \
+ movzbl RW2bh, RT1d; \
+ shrl $16, RW2d; \
+ leaq s7(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##2; \
+ leaq s5(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##2; \
+ movzbl RW2bl, RT3d; \
+ movzbl RW2bh, RT1d; \
+ do_movq(RW0, RW2); \
+ leaq s3(%rip), RT2; \
+ xorq (RT2, RT3, 8), to##2; \
+ leaq s1(%rip), RT2; \
+ xorq (RT2, RT1, 8), to##2;
+
+#define __movq(src, dst) \
+ movq src, dst;
+
+SYM_FUNC_START(des3_ede_x86_64_crypt_blk_3way)
+ /* input:
+ * %rdi: ctx, round keys
+ * %rsi: dst (3 blocks)
+ * %rdx: src (3 blocks)
+ */
+
+ pushq %rbx;
+ pushq %r12;
+ pushq %r13;
+ pushq %r14;
+ pushq %r15;
+
+ pushq %rsi /* dst */
+
+ /* load input */
+ movl 0 * 4(%rdx), RL0d;
+ movl 1 * 4(%rdx), RR0d;
+ movl 2 * 4(%rdx), RL1d;
+ movl 3 * 4(%rdx), RR1d;
+ movl 4 * 4(%rdx), RL2d;
+ movl 5 * 4(%rdx), RR2d;
+
+ bswapl RL0d;
+ bswapl RR0d;
+ bswapl RL1d;
+ bswapl RR1d;
+ bswapl RL2d;
+ bswapl RR2d;
+
+ initial_permutation3(RL, RR);
+
+ movq 0(CTX), RW0;
+ movq RW0, RW1;
+ movq RW0, RW2;
+
+ round3(0, RR, RL, load_next_key, __movq);
+ round3(1, RL, RR, load_next_key, __movq);
+ round3(2, RR, RL, load_next_key, __movq);
+ round3(3, RL, RR, load_next_key, __movq);
+ round3(4, RR, RL, load_next_key, __movq);
+ round3(5, RL, RR, load_next_key, __movq);
+ round3(6, RR, RL, load_next_key, __movq);
+ round3(7, RL, RR, load_next_key, __movq);
+ round3(8, RR, RL, load_next_key, __movq);
+ round3(9, RL, RR, load_next_key, __movq);
+ round3(10, RR, RL, load_next_key, __movq);
+ round3(11, RL, RR, load_next_key, __movq);
+ round3(12, RR, RL, load_next_key, __movq);
+ round3(13, RL, RR, load_next_key, __movq);
+ round3(14, RR, RL, load_next_key, __movq);
+ round3(15, RL, RR, load_next_key, __movq);
+
+ round3(16+0, RL, RR, load_next_key, __movq);
+ round3(16+1, RR, RL, load_next_key, __movq);
+ round3(16+2, RL, RR, load_next_key, __movq);
+ round3(16+3, RR, RL, load_next_key, __movq);
+ round3(16+4, RL, RR, load_next_key, __movq);
+ round3(16+5, RR, RL, load_next_key, __movq);
+ round3(16+6, RL, RR, load_next_key, __movq);
+ round3(16+7, RR, RL, load_next_key, __movq);
+ round3(16+8, RL, RR, load_next_key, __movq);
+ round3(16+9, RR, RL, load_next_key, __movq);
+ round3(16+10, RL, RR, load_next_key, __movq);
+ round3(16+11, RR, RL, load_next_key, __movq);
+ round3(16+12, RL, RR, load_next_key, __movq);
+ round3(16+13, RR, RL, load_next_key, __movq);
+ round3(16+14, RL, RR, load_next_key, __movq);
+ round3(16+15, RR, RL, load_next_key, __movq);
+
+ round3(32+0, RR, RL, load_next_key, __movq);
+ round3(32+1, RL, RR, load_next_key, __movq);
+ round3(32+2, RR, RL, load_next_key, __movq);
+ round3(32+3, RL, RR, load_next_key, __movq);
+ round3(32+4, RR, RL, load_next_key, __movq);
+ round3(32+5, RL, RR, load_next_key, __movq);
+ round3(32+6, RR, RL, load_next_key, __movq);
+ round3(32+7, RL, RR, load_next_key, __movq);
+ round3(32+8, RR, RL, load_next_key, __movq);
+ round3(32+9, RL, RR, load_next_key, __movq);
+ round3(32+10, RR, RL, load_next_key, __movq);
+ round3(32+11, RL, RR, load_next_key, __movq);
+ round3(32+12, RR, RL, load_next_key, __movq);
+ round3(32+13, RL, RR, load_next_key, __movq);
+ round3(32+14, RR, RL, load_next_key, __movq);
+ round3(32+15, RL, RR, dummy2, dummy2);
+
+ final_permutation3(RR, RL);
+
+ bswapl RR0d;
+ bswapl RL0d;
+ bswapl RR1d;
+ bswapl RL1d;
+ bswapl RR2d;
+ bswapl RL2d;
+
+ popq %rsi /* dst */
+ movl RR0d, 0 * 4(%rsi);
+ movl RL0d, 1 * 4(%rsi);
+ movl RR1d, 2 * 4(%rsi);
+ movl RL1d, 3 * 4(%rsi);
+ movl RR2d, 4 * 4(%rsi);
+ movl RL2d, 5 * 4(%rsi);
+
+ popq %r15;
+ popq %r14;
+ popq %r13;
+ popq %r12;
+ popq %rbx;
+
+ RET;
+SYM_FUNC_END(des3_ede_x86_64_crypt_blk_3way)
+
+.section .rodata, "a", @progbits
+.align 16
+.L_s1:
+ .quad 0x0010100001010400, 0x0000000000000000
+ .quad 0x0000100000010000, 0x0010100001010404
+ .quad 0x0010100001010004, 0x0000100000010404
+ .quad 0x0000000000000004, 0x0000100000010000
+ .quad 0x0000000000000400, 0x0010100001010400
+ .quad 0x0010100001010404, 0x0000000000000400
+ .quad 0x0010000001000404, 0x0010100001010004
+ .quad 0x0010000001000000, 0x0000000000000004
+ .quad 0x0000000000000404, 0x0010000001000400
+ .quad 0x0010000001000400, 0x0000100000010400
+ .quad 0x0000100000010400, 0x0010100001010000
+ .quad 0x0010100001010000, 0x0010000001000404
+ .quad 0x0000100000010004, 0x0010000001000004
+ .quad 0x0010000001000004, 0x0000100000010004
+ .quad 0x0000000000000000, 0x0000000000000404
+ .quad 0x0000100000010404, 0x0010000001000000
+ .quad 0x0000100000010000, 0x0010100001010404
+ .quad 0x0000000000000004, 0x0010100001010000
+ .quad 0x0010100001010400, 0x0010000001000000
+ .quad 0x0010000001000000, 0x0000000000000400
+ .quad 0x0010100001010004, 0x0000100000010000
+ .quad 0x0000100000010400, 0x0010000001000004
+ .quad 0x0000000000000400, 0x0000000000000004
+ .quad 0x0010000001000404, 0x0000100000010404
+ .quad 0x0010100001010404, 0x0000100000010004
+ .quad 0x0010100001010000, 0x0010000001000404
+ .quad 0x0010000001000004, 0x0000000000000404
+ .quad 0x0000100000010404, 0x0010100001010400
+ .quad 0x0000000000000404, 0x0010000001000400
+ .quad 0x0010000001000400, 0x0000000000000000
+ .quad 0x0000100000010004, 0x0000100000010400
+ .quad 0x0000000000000000, 0x0010100001010004
+.L_s2:
+ .quad 0x0801080200100020, 0x0800080000000000
+ .quad 0x0000080000000000, 0x0001080200100020
+ .quad 0x0001000000100000, 0x0000000200000020
+ .quad 0x0801000200100020, 0x0800080200000020
+ .quad 0x0800000200000020, 0x0801080200100020
+ .quad 0x0801080000100000, 0x0800000000000000
+ .quad 0x0800080000000000, 0x0001000000100000
+ .quad 0x0000000200000020, 0x0801000200100020
+ .quad 0x0001080000100000, 0x0001000200100020
+ .quad 0x0800080200000020, 0x0000000000000000
+ .quad 0x0800000000000000, 0x0000080000000000
+ .quad 0x0001080200100020, 0x0801000000100000
+ .quad 0x0001000200100020, 0x0800000200000020
+ .quad 0x0000000000000000, 0x0001080000100000
+ .quad 0x0000080200000020, 0x0801080000100000
+ .quad 0x0801000000100000, 0x0000080200000020
+ .quad 0x0000000000000000, 0x0001080200100020
+ .quad 0x0801000200100020, 0x0001000000100000
+ .quad 0x0800080200000020, 0x0801000000100000
+ .quad 0x0801080000100000, 0x0000080000000000
+ .quad 0x0801000000100000, 0x0800080000000000
+ .quad 0x0000000200000020, 0x0801080200100020
+ .quad 0x0001080200100020, 0x0000000200000020
+ .quad 0x0000080000000000, 0x0800000000000000
+ .quad 0x0000080200000020, 0x0801080000100000
+ .quad 0x0001000000100000, 0x0800000200000020
+ .quad 0x0001000200100020, 0x0800080200000020
+ .quad 0x0800000200000020, 0x0001000200100020
+ .quad 0x0001080000100000, 0x0000000000000000
+ .quad 0x0800080000000000, 0x0000080200000020
+ .quad 0x0800000000000000, 0x0801000200100020
+ .quad 0x0801080200100020, 0x0001080000100000
+.L_s3:
+ .quad 0x0000002000000208, 0x0000202008020200
+ .quad 0x0000000000000000, 0x0000200008020008
+ .quad 0x0000002008000200, 0x0000000000000000
+ .quad 0x0000202000020208, 0x0000002008000200
+ .quad 0x0000200000020008, 0x0000000008000008
+ .quad 0x0000000008000008, 0x0000200000020000
+ .quad 0x0000202008020208, 0x0000200000020008
+ .quad 0x0000200008020000, 0x0000002000000208
+ .quad 0x0000000008000000, 0x0000000000000008
+ .quad 0x0000202008020200, 0x0000002000000200
+ .quad 0x0000202000020200, 0x0000200008020000
+ .quad 0x0000200008020008, 0x0000202000020208
+ .quad 0x0000002008000208, 0x0000202000020200
+ .quad 0x0000200000020000, 0x0000002008000208
+ .quad 0x0000000000000008, 0x0000202008020208
+ .quad 0x0000002000000200, 0x0000000008000000
+ .quad 0x0000202008020200, 0x0000000008000000
+ .quad 0x0000200000020008, 0x0000002000000208
+ .quad 0x0000200000020000, 0x0000202008020200
+ .quad 0x0000002008000200, 0x0000000000000000
+ .quad 0x0000002000000200, 0x0000200000020008
+ .quad 0x0000202008020208, 0x0000002008000200
+ .quad 0x0000000008000008, 0x0000002000000200
+ .quad 0x0000000000000000, 0x0000200008020008
+ .quad 0x0000002008000208, 0x0000200000020000
+ .quad 0x0000000008000000, 0x0000202008020208
+ .quad 0x0000000000000008, 0x0000202000020208
+ .quad 0x0000202000020200, 0x0000000008000008
+ .quad 0x0000200008020000, 0x0000002008000208
+ .quad 0x0000002000000208, 0x0000200008020000
+ .quad 0x0000202000020208, 0x0000000000000008
+ .quad 0x0000200008020008, 0x0000202000020200
+.L_s4:
+ .quad 0x1008020000002001, 0x1000020800002001
+ .quad 0x1000020800002001, 0x0000000800000000
+ .quad 0x0008020800002000, 0x1008000800000001
+ .quad 0x1008000000000001, 0x1000020000002001
+ .quad 0x0000000000000000, 0x0008020000002000
+ .quad 0x0008020000002000, 0x1008020800002001
+ .quad 0x1000000800000001, 0x0000000000000000
+ .quad 0x0008000800000000, 0x1008000000000001
+ .quad 0x1000000000000001, 0x0000020000002000
+ .quad 0x0008000000000000, 0x1008020000002001
+ .quad 0x0000000800000000, 0x0008000000000000
+ .quad 0x1000020000002001, 0x0000020800002000
+ .quad 0x1008000800000001, 0x1000000000000001
+ .quad 0x0000020800002000, 0x0008000800000000
+ .quad 0x0000020000002000, 0x0008020800002000
+ .quad 0x1008020800002001, 0x1000000800000001
+ .quad 0x0008000800000000, 0x1008000000000001
+ .quad 0x0008020000002000, 0x1008020800002001
+ .quad 0x1000000800000001, 0x0000000000000000
+ .quad 0x0000000000000000, 0x0008020000002000
+ .quad 0x0000020800002000, 0x0008000800000000
+ .quad 0x1008000800000001, 0x1000000000000001
+ .quad 0x1008020000002001, 0x1000020800002001
+ .quad 0x1000020800002001, 0x0000000800000000
+ .quad 0x1008020800002001, 0x1000000800000001
+ .quad 0x1000000000000001, 0x0000020000002000
+ .quad 0x1008000000000001, 0x1000020000002001
+ .quad 0x0008020800002000, 0x1008000800000001
+ .quad 0x1000020000002001, 0x0000020800002000
+ .quad 0x0008000000000000, 0x1008020000002001
+ .quad 0x0000000800000000, 0x0008000000000000
+ .quad 0x0000020000002000, 0x0008020800002000
+.L_s5:
+ .quad 0x0000001000000100, 0x0020001002080100
+ .quad 0x0020000002080000, 0x0420001002000100
+ .quad 0x0000000000080000, 0x0000001000000100
+ .quad 0x0400000000000000, 0x0020000002080000
+ .quad 0x0400001000080100, 0x0000000000080000
+ .quad 0x0020001002000100, 0x0400001000080100
+ .quad 0x0420001002000100, 0x0420000002080000
+ .quad 0x0000001000080100, 0x0400000000000000
+ .quad 0x0020000002000000, 0x0400000000080000
+ .quad 0x0400000000080000, 0x0000000000000000
+ .quad 0x0400001000000100, 0x0420001002080100
+ .quad 0x0420001002080100, 0x0020001002000100
+ .quad 0x0420000002080000, 0x0400001000000100
+ .quad 0x0000000000000000, 0x0420000002000000
+ .quad 0x0020001002080100, 0x0020000002000000
+ .quad 0x0420000002000000, 0x0000001000080100
+ .quad 0x0000000000080000, 0x0420001002000100
+ .quad 0x0000001000000100, 0x0020000002000000
+ .quad 0x0400000000000000, 0x0020000002080000
+ .quad 0x0420001002000100, 0x0400001000080100
+ .quad 0x0020001002000100, 0x0400000000000000
+ .quad 0x0420000002080000, 0x0020001002080100
+ .quad 0x0400001000080100, 0x0000001000000100
+ .quad 0x0020000002000000, 0x0420000002080000
+ .quad 0x0420001002080100, 0x0000001000080100
+ .quad 0x0420000002000000, 0x0420001002080100
+ .quad 0x0020000002080000, 0x0000000000000000
+ .quad 0x0400000000080000, 0x0420000002000000
+ .quad 0x0000001000080100, 0x0020001002000100
+ .quad 0x0400001000000100, 0x0000000000080000
+ .quad 0x0000000000000000, 0x0400000000080000
+ .quad 0x0020001002080100, 0x0400001000000100
+.L_s6:
+ .quad 0x0200000120000010, 0x0204000020000000
+ .quad 0x0000040000000000, 0x0204040120000010
+ .quad 0x0204000020000000, 0x0000000100000010
+ .quad 0x0204040120000010, 0x0004000000000000
+ .quad 0x0200040020000000, 0x0004040100000010
+ .quad 0x0004000000000000, 0x0200000120000010
+ .quad 0x0004000100000010, 0x0200040020000000
+ .quad 0x0200000020000000, 0x0000040100000010
+ .quad 0x0000000000000000, 0x0004000100000010
+ .quad 0x0200040120000010, 0x0000040000000000
+ .quad 0x0004040000000000, 0x0200040120000010
+ .quad 0x0000000100000010, 0x0204000120000010
+ .quad 0x0204000120000010, 0x0000000000000000
+ .quad 0x0004040100000010, 0x0204040020000000
+ .quad 0x0000040100000010, 0x0004040000000000
+ .quad 0x0204040020000000, 0x0200000020000000
+ .quad 0x0200040020000000, 0x0000000100000010
+ .quad 0x0204000120000010, 0x0004040000000000
+ .quad 0x0204040120000010, 0x0004000000000000
+ .quad 0x0000040100000010, 0x0200000120000010
+ .quad 0x0004000000000000, 0x0200040020000000
+ .quad 0x0200000020000000, 0x0000040100000010
+ .quad 0x0200000120000010, 0x0204040120000010
+ .quad 0x0004040000000000, 0x0204000020000000
+ .quad 0x0004040100000010, 0x0204040020000000
+ .quad 0x0000000000000000, 0x0204000120000010
+ .quad 0x0000000100000010, 0x0000040000000000
+ .quad 0x0204000020000000, 0x0004040100000010
+ .quad 0x0000040000000000, 0x0004000100000010
+ .quad 0x0200040120000010, 0x0000000000000000
+ .quad 0x0204040020000000, 0x0200000020000000
+ .quad 0x0004000100000010, 0x0200040120000010
+.L_s7:
+ .quad 0x0002000000200000, 0x2002000004200002
+ .quad 0x2000000004000802, 0x0000000000000000
+ .quad 0x0000000000000800, 0x2000000004000802
+ .quad 0x2002000000200802, 0x0002000004200800
+ .quad 0x2002000004200802, 0x0002000000200000
+ .quad 0x0000000000000000, 0x2000000004000002
+ .quad 0x2000000000000002, 0x0000000004000000
+ .quad 0x2002000004200002, 0x2000000000000802
+ .quad 0x0000000004000800, 0x2002000000200802
+ .quad 0x2002000000200002, 0x0000000004000800
+ .quad 0x2000000004000002, 0x0002000004200000
+ .quad 0x0002000004200800, 0x2002000000200002
+ .quad 0x0002000004200000, 0x0000000000000800
+ .quad 0x2000000000000802, 0x2002000004200802
+ .quad 0x0002000000200800, 0x2000000000000002
+ .quad 0x0000000004000000, 0x0002000000200800
+ .quad 0x0000000004000000, 0x0002000000200800
+ .quad 0x0002000000200000, 0x2000000004000802
+ .quad 0x2000000004000802, 0x2002000004200002
+ .quad 0x2002000004200002, 0x2000000000000002
+ .quad 0x2002000000200002, 0x0000000004000000
+ .quad 0x0000000004000800, 0x0002000000200000
+ .quad 0x0002000004200800, 0x2000000000000802
+ .quad 0x2002000000200802, 0x0002000004200800
+ .quad 0x2000000000000802, 0x2000000004000002
+ .quad 0x2002000004200802, 0x0002000004200000
+ .quad 0x0002000000200800, 0x0000000000000000
+ .quad 0x2000000000000002, 0x2002000004200802
+ .quad 0x0000000000000000, 0x2002000000200802
+ .quad 0x0002000004200000, 0x0000000000000800
+ .quad 0x2000000004000002, 0x0000000004000800
+ .quad 0x0000000000000800, 0x2002000000200002
+.L_s8:
+ .quad 0x0100010410001000, 0x0000010000001000
+ .quad 0x0000000000040000, 0x0100010410041000
+ .quad 0x0100000010000000, 0x0100010410001000
+ .quad 0x0000000400000000, 0x0100000010000000
+ .quad 0x0000000400040000, 0x0100000010040000
+ .quad 0x0100010410041000, 0x0000010000041000
+ .quad 0x0100010010041000, 0x0000010400041000
+ .quad 0x0000010000001000, 0x0000000400000000
+ .quad 0x0100000010040000, 0x0100000410000000
+ .quad 0x0100010010001000, 0x0000010400001000
+ .quad 0x0000010000041000, 0x0000000400040000
+ .quad 0x0100000410040000, 0x0100010010041000
+ .quad 0x0000010400001000, 0x0000000000000000
+ .quad 0x0000000000000000, 0x0100000410040000
+ .quad 0x0100000410000000, 0x0100010010001000
+ .quad 0x0000010400041000, 0x0000000000040000
+ .quad 0x0000010400041000, 0x0000000000040000
+ .quad 0x0100010010041000, 0x0000010000001000
+ .quad 0x0000000400000000, 0x0100000410040000
+ .quad 0x0000010000001000, 0x0000010400041000
+ .quad 0x0100010010001000, 0x0000000400000000
+ .quad 0x0100000410000000, 0x0100000010040000
+ .quad 0x0100000410040000, 0x0100000010000000
+ .quad 0x0000000000040000, 0x0100010410001000
+ .quad 0x0000000000000000, 0x0100010410041000
+ .quad 0x0000000400040000, 0x0100000410000000
+ .quad 0x0100000010040000, 0x0100010010001000
+ .quad 0x0100010410001000, 0x0000000000000000
+ .quad 0x0100010410041000, 0x0000010000041000
+ .quad 0x0000010000041000, 0x0000010400001000
+ .quad 0x0000010400001000, 0x0000000400040000
+ .quad 0x0100000010000000, 0x0100010010041000
diff --git a/arch/x86/crypto/des3_ede_glue.c b/arch/x86/crypto/des3_ede_glue.c
new file mode 100644
index 000000000000..abb8b1fe123b
--- /dev/null
+++ b/arch/x86/crypto/des3_ede_glue.c
@@ -0,0 +1,392 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for assembler optimized version of 3DES
+ *
+ * Copyright Ā© 2014 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by:
+ * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/des.h>
+#include <crypto/internal/skcipher.h>
+#include <linux/crypto.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+struct des3_ede_x86_ctx {
+ struct des3_ede_ctx enc;
+ struct des3_ede_ctx dec;
+};
+
+/* regular block cipher functions */
+asmlinkage void des3_ede_x86_64_crypt_blk(const u32 *expkey, u8 *dst,
+ const u8 *src);
+
+/* 3-way parallel cipher functions */
+asmlinkage void des3_ede_x86_64_crypt_blk_3way(const u32 *expkey, u8 *dst,
+ const u8 *src);
+
+static inline void des3_ede_enc_blk(struct des3_ede_x86_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ u32 *enc_ctx = ctx->enc.expkey;
+
+ des3_ede_x86_64_crypt_blk(enc_ctx, dst, src);
+}
+
+static inline void des3_ede_dec_blk(struct des3_ede_x86_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ u32 *dec_ctx = ctx->dec.expkey;
+
+ des3_ede_x86_64_crypt_blk(dec_ctx, dst, src);
+}
+
+static inline void des3_ede_dec_blk_3way(struct des3_ede_x86_ctx *ctx, u8 *dst,
+ const u8 *src)
+{
+ u32 *dec_ctx = ctx->dec.expkey;
+
+ des3_ede_x86_64_crypt_blk_3way(dec_ctx, dst, src);
+}
+
+static void des3_ede_x86_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ des3_ede_enc_blk(crypto_tfm_ctx(tfm), dst, src);
+}
+
+static void des3_ede_x86_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
+{
+ des3_ede_dec_blk(crypto_tfm_ctx(tfm), dst, src);
+}
+
+static int ecb_crypt(struct skcipher_request *req, const u32 *expkey)
+{
+ const unsigned int bsize = DES3_EDE_BLOCK_SIZE;
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((nbytes = walk.nbytes)) {
+ u8 *wsrc = walk.src.virt.addr;
+ u8 *wdst = walk.dst.virt.addr;
+
+ /* Process four block batch */
+ if (nbytes >= bsize * 3) {
+ do {
+ des3_ede_x86_64_crypt_blk_3way(expkey, wdst,
+ wsrc);
+
+ wsrc += bsize * 3;
+ wdst += bsize * 3;
+ nbytes -= bsize * 3;
+ } while (nbytes >= bsize * 3);
+
+ if (nbytes < bsize)
+ goto done;
+ }
+
+ /* Handle leftovers */
+ do {
+ des3_ede_x86_64_crypt_blk(expkey, wdst, wsrc);
+
+ wsrc += bsize;
+ wdst += bsize;
+ nbytes -= bsize;
+ } while (nbytes >= bsize);
+
+done:
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct des3_ede_x86_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return ecb_crypt(req, ctx->enc.expkey);
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct des3_ede_x86_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return ecb_crypt(req, ctx->dec.expkey);
+}
+
+static unsigned int __cbc_encrypt(struct des3_ede_x86_ctx *ctx,
+ struct skcipher_walk *walk)
+{
+ unsigned int bsize = DES3_EDE_BLOCK_SIZE;
+ unsigned int nbytes = walk->nbytes;
+ u64 *src = (u64 *)walk->src.virt.addr;
+ u64 *dst = (u64 *)walk->dst.virt.addr;
+ u64 *iv = (u64 *)walk->iv;
+
+ do {
+ *dst = *src ^ *iv;
+ des3_ede_enc_blk(ctx, (u8 *)dst, (u8 *)dst);
+ iv = dst;
+
+ src += 1;
+ dst += 1;
+ nbytes -= bsize;
+ } while (nbytes >= bsize);
+
+ *(u64 *)walk->iv = *iv;
+ return nbytes;
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct des3_ede_x86_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while (walk.nbytes) {
+ nbytes = __cbc_encrypt(ctx, &walk);
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+
+static unsigned int __cbc_decrypt(struct des3_ede_x86_ctx *ctx,
+ struct skcipher_walk *walk)
+{
+ unsigned int bsize = DES3_EDE_BLOCK_SIZE;
+ unsigned int nbytes = walk->nbytes;
+ u64 *src = (u64 *)walk->src.virt.addr;
+ u64 *dst = (u64 *)walk->dst.virt.addr;
+ u64 ivs[3 - 1];
+ u64 last_iv;
+
+ /* Start of the last block. */
+ src += nbytes / bsize - 1;
+ dst += nbytes / bsize - 1;
+
+ last_iv = *src;
+
+ /* Process four block batch */
+ if (nbytes >= bsize * 3) {
+ do {
+ nbytes -= bsize * 3 - bsize;
+ src -= 3 - 1;
+ dst -= 3 - 1;
+
+ ivs[0] = src[0];
+ ivs[1] = src[1];
+
+ des3_ede_dec_blk_3way(ctx, (u8 *)dst, (u8 *)src);
+
+ dst[1] ^= ivs[0];
+ dst[2] ^= ivs[1];
+
+ nbytes -= bsize;
+ if (nbytes < bsize)
+ goto done;
+
+ *dst ^= *(src - 1);
+ src -= 1;
+ dst -= 1;
+ } while (nbytes >= bsize * 3);
+ }
+
+ /* Handle leftovers */
+ for (;;) {
+ des3_ede_dec_blk(ctx, (u8 *)dst, (u8 *)src);
+
+ nbytes -= bsize;
+ if (nbytes < bsize)
+ break;
+
+ *dst ^= *(src - 1);
+ src -= 1;
+ dst -= 1;
+ }
+
+done:
+ *dst ^= *(u64 *)walk->iv;
+ *(u64 *)walk->iv = last_iv;
+
+ return nbytes;
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct des3_ede_x86_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while (walk.nbytes) {
+ nbytes = __cbc_decrypt(ctx, &walk);
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+
+static int des3_ede_x86_setkey(struct crypto_tfm *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ struct des3_ede_x86_ctx *ctx = crypto_tfm_ctx(tfm);
+ u32 i, j, tmp;
+ int err;
+
+ err = des3_ede_expand_key(&ctx->enc, key, keylen);
+ if (err == -ENOKEY) {
+ if (crypto_tfm_get_flags(tfm) & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)
+ err = -EINVAL;
+ else
+ err = 0;
+ }
+
+ if (err) {
+ memset(ctx, 0, sizeof(*ctx));
+ return err;
+ }
+
+ /* Fix encryption context for this implementation and form decryption
+ * context. */
+ j = DES3_EDE_EXPKEY_WORDS - 2;
+ for (i = 0; i < DES3_EDE_EXPKEY_WORDS; i += 2, j -= 2) {
+ tmp = ror32(ctx->enc.expkey[i + 1], 4);
+ ctx->enc.expkey[i + 1] = tmp;
+
+ ctx->dec.expkey[j + 0] = ctx->enc.expkey[i + 0];
+ ctx->dec.expkey[j + 1] = tmp;
+ }
+
+ return 0;
+}
+
+static int des3_ede_x86_setkey_skcipher(struct crypto_skcipher *tfm,
+ const u8 *key,
+ unsigned int keylen)
+{
+ return des3_ede_x86_setkey(&tfm->base, key, keylen);
+}
+
+static struct crypto_alg des3_ede_cipher = {
+ .cra_name = "des3_ede",
+ .cra_driver_name = "des3_ede-asm",
+ .cra_priority = 200,
+ .cra_flags = CRYPTO_ALG_TYPE_CIPHER,
+ .cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct des3_ede_x86_ctx),
+ .cra_alignmask = 0,
+ .cra_module = THIS_MODULE,
+ .cra_u = {
+ .cipher = {
+ .cia_min_keysize = DES3_EDE_KEY_SIZE,
+ .cia_max_keysize = DES3_EDE_KEY_SIZE,
+ .cia_setkey = des3_ede_x86_setkey,
+ .cia_encrypt = des3_ede_x86_encrypt,
+ .cia_decrypt = des3_ede_x86_decrypt,
+ }
+ }
+};
+
+static struct skcipher_alg des3_ede_skciphers[] = {
+ {
+ .base.cra_name = "ecb(des3_ede)",
+ .base.cra_driver_name = "ecb-des3_ede-asm",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct des3_ede_x86_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ .setkey = des3_ede_x86_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "cbc(des3_ede)",
+ .base.cra_driver_name = "cbc-des3_ede-asm",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = DES3_EDE_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct des3_ede_x86_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .setkey = des3_ede_x86_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ }
+};
+
+static bool is_blacklisted_cpu(void)
+{
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
+ return false;
+
+ if (boot_cpu_data.x86 == 0x0f) {
+ /*
+ * On Pentium 4, des3_ede-x86_64 is slower than generic C
+ * implementation because use of 64bit rotates (which are really
+ * slow on P4). Therefore blacklist P4s.
+ */
+ return true;
+ }
+
+ return false;
+}
+
+static int force;
+module_param(force, int, 0);
+MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist");
+
+static int __init des3_ede_x86_init(void)
+{
+ int err;
+
+ if (!force && is_blacklisted_cpu()) {
+ pr_info("des3_ede-x86_64: performance on this CPU would be suboptimal: disabling des3_ede-x86_64.\n");
+ return -ENODEV;
+ }
+
+ err = crypto_register_alg(&des3_ede_cipher);
+ if (err)
+ return err;
+
+ err = crypto_register_skciphers(des3_ede_skciphers,
+ ARRAY_SIZE(des3_ede_skciphers));
+ if (err)
+ crypto_unregister_alg(&des3_ede_cipher);
+
+ return err;
+}
+
+static void __exit des3_ede_x86_fini(void)
+{
+ crypto_unregister_alg(&des3_ede_cipher);
+ crypto_unregister_skciphers(des3_ede_skciphers,
+ ARRAY_SIZE(des3_ede_skciphers));
+}
+
+module_init(des3_ede_x86_init);
+module_exit(des3_ede_x86_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Triple DES EDE Cipher Algorithm, asm optimized");
+MODULE_ALIAS_CRYPTO("des3_ede");
+MODULE_ALIAS_CRYPTO("des3_ede-asm");
+MODULE_AUTHOR("Jussi Kivilinna <jussi.kivilinna@iki.fi>");
diff --git a/arch/x86/crypto/ecb_cbc_helpers.h b/arch/x86/crypto/ecb_cbc_helpers.h
new file mode 100644
index 000000000000..11955bd01af1
--- /dev/null
+++ b/arch/x86/crypto/ecb_cbc_helpers.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _CRYPTO_ECB_CBC_HELPER_H
+#define _CRYPTO_ECB_CBC_HELPER_H
+
+#include <crypto/internal/skcipher.h>
+#include <asm/fpu/api.h>
+
+/*
+ * Mode helpers to instantiate parameterized skcipher ECB/CBC modes without
+ * having to rely on indirect calls and retpolines.
+ */
+
+#define ECB_WALK_START(req, bsize, fpu_blocks) do { \
+ void *ctx = crypto_skcipher_ctx(crypto_skcipher_reqtfm(req)); \
+ const int __fpu_blocks = (fpu_blocks); \
+ const int __bsize = (bsize); \
+ struct skcipher_walk walk; \
+ int err = skcipher_walk_virt(&walk, (req), false); \
+ while (walk.nbytes > 0) { \
+ unsigned int nbytes = walk.nbytes; \
+ bool do_fpu = __fpu_blocks != -1 && \
+ nbytes >= __fpu_blocks * __bsize; \
+ const u8 *src = walk.src.virt.addr; \
+ u8 *dst = walk.dst.virt.addr; \
+ u8 __maybe_unused buf[(bsize)]; \
+ if (do_fpu) kernel_fpu_begin()
+
+#define CBC_WALK_START(req, bsize, fpu_blocks) \
+ ECB_WALK_START(req, bsize, fpu_blocks)
+
+#define ECB_WALK_ADVANCE(blocks) do { \
+ dst += (blocks) * __bsize; \
+ src += (blocks) * __bsize; \
+ nbytes -= (blocks) * __bsize; \
+} while (0)
+
+#define ECB_BLOCK(blocks, func) do { \
+ const int __blocks = (blocks); \
+ if (do_fpu && __blocks < __fpu_blocks) { \
+ kernel_fpu_end(); \
+ do_fpu = false; \
+ } \
+ while (nbytes >= __blocks * __bsize) { \
+ (func)(ctx, dst, src); \
+ ECB_WALK_ADVANCE(blocks); \
+ } \
+} while (0)
+
+#define CBC_ENC_BLOCK(func) do { \
+ const u8 *__iv = walk.iv; \
+ while (nbytes >= __bsize) { \
+ crypto_xor_cpy(dst, src, __iv, __bsize); \
+ (func)(ctx, dst, dst); \
+ __iv = dst; \
+ ECB_WALK_ADVANCE(1); \
+ } \
+ memcpy(walk.iv, __iv, __bsize); \
+} while (0)
+
+#define CBC_DEC_BLOCK(blocks, func) do { \
+ const int __blocks = (blocks); \
+ if (do_fpu && __blocks < __fpu_blocks) { \
+ kernel_fpu_end(); \
+ do_fpu = false; \
+ } \
+ while (nbytes >= __blocks * __bsize) { \
+ const u8 *__iv = src + ((blocks) - 1) * __bsize; \
+ if (dst == src) \
+ __iv = memcpy(buf, __iv, __bsize); \
+ (func)(ctx, dst, src); \
+ crypto_xor(dst, walk.iv, __bsize); \
+ memcpy(walk.iv, __iv, __bsize); \
+ ECB_WALK_ADVANCE(blocks); \
+ } \
+} while (0)
+
+#define ECB_WALK_END() \
+ if (do_fpu) kernel_fpu_end(); \
+ err = skcipher_walk_done(&walk, nbytes); \
+ } \
+ return err; \
+} while (0)
+
+#define CBC_WALK_END() ECB_WALK_END()
+
+#endif
diff --git a/arch/x86/crypto/fpu.c b/arch/x86/crypto/fpu.c
deleted file mode 100644
index 1a8f8649c035..000000000000
--- a/arch/x86/crypto/fpu.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * FPU: Wrapper for blkcipher touching fpu
- *
- * Copyright (c) Intel Corp.
- * Author: Huang Ying <ying.huang@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- */
-
-#include <crypto/algapi.h>
-#include <linux/err.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <asm/i387.h>
-
-struct crypto_fpu_ctx {
- struct crypto_blkcipher *child;
-};
-
-static int crypto_fpu_setkey(struct crypto_tfm *parent, const u8 *key,
- unsigned int keylen)
-{
- struct crypto_fpu_ctx *ctx = crypto_tfm_ctx(parent);
- struct crypto_blkcipher *child = ctx->child;
- int err;
-
- crypto_blkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
- crypto_blkcipher_set_flags(child, crypto_tfm_get_flags(parent) &
- CRYPTO_TFM_REQ_MASK);
- err = crypto_blkcipher_setkey(child, key, keylen);
- crypto_tfm_set_flags(parent, crypto_blkcipher_get_flags(child) &
- CRYPTO_TFM_RES_MASK);
- return err;
-}
-
-static int crypto_fpu_encrypt(struct blkcipher_desc *desc_in,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
-{
- int err;
- struct crypto_fpu_ctx *ctx = crypto_blkcipher_ctx(desc_in->tfm);
- struct crypto_blkcipher *child = ctx->child;
- struct blkcipher_desc desc = {
- .tfm = child,
- .info = desc_in->info,
- .flags = desc_in->flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
- };
-
- kernel_fpu_begin();
- err = crypto_blkcipher_crt(desc.tfm)->encrypt(&desc, dst, src, nbytes);
- kernel_fpu_end();
- return err;
-}
-
-static int crypto_fpu_decrypt(struct blkcipher_desc *desc_in,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
-{
- int err;
- struct crypto_fpu_ctx *ctx = crypto_blkcipher_ctx(desc_in->tfm);
- struct crypto_blkcipher *child = ctx->child;
- struct blkcipher_desc desc = {
- .tfm = child,
- .info = desc_in->info,
- .flags = desc_in->flags & ~CRYPTO_TFM_REQ_MAY_SLEEP,
- };
-
- kernel_fpu_begin();
- err = crypto_blkcipher_crt(desc.tfm)->decrypt(&desc, dst, src, nbytes);
- kernel_fpu_end();
- return err;
-}
-
-static int crypto_fpu_init_tfm(struct crypto_tfm *tfm)
-{
- struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
- struct crypto_spawn *spawn = crypto_instance_ctx(inst);
- struct crypto_fpu_ctx *ctx = crypto_tfm_ctx(tfm);
- struct crypto_blkcipher *cipher;
-
- cipher = crypto_spawn_blkcipher(spawn);
- if (IS_ERR(cipher))
- return PTR_ERR(cipher);
-
- ctx->child = cipher;
- return 0;
-}
-
-static void crypto_fpu_exit_tfm(struct crypto_tfm *tfm)
-{
- struct crypto_fpu_ctx *ctx = crypto_tfm_ctx(tfm);
- crypto_free_blkcipher(ctx->child);
-}
-
-static struct crypto_instance *crypto_fpu_alloc(struct rtattr **tb)
-{
- struct crypto_instance *inst;
- struct crypto_alg *alg;
- int err;
-
- err = crypto_check_attr_type(tb, CRYPTO_ALG_TYPE_BLKCIPHER);
- if (err)
- return ERR_PTR(err);
-
- alg = crypto_get_attr_alg(tb, CRYPTO_ALG_TYPE_BLKCIPHER,
- CRYPTO_ALG_TYPE_MASK);
- if (IS_ERR(alg))
- return ERR_CAST(alg);
-
- inst = crypto_alloc_instance("fpu", alg);
- if (IS_ERR(inst))
- goto out_put_alg;
-
- inst->alg.cra_flags = alg->cra_flags;
- inst->alg.cra_priority = alg->cra_priority;
- inst->alg.cra_blocksize = alg->cra_blocksize;
- inst->alg.cra_alignmask = alg->cra_alignmask;
- inst->alg.cra_type = alg->cra_type;
- inst->alg.cra_blkcipher.ivsize = alg->cra_blkcipher.ivsize;
- inst->alg.cra_blkcipher.min_keysize = alg->cra_blkcipher.min_keysize;
- inst->alg.cra_blkcipher.max_keysize = alg->cra_blkcipher.max_keysize;
- inst->alg.cra_ctxsize = sizeof(struct crypto_fpu_ctx);
- inst->alg.cra_init = crypto_fpu_init_tfm;
- inst->alg.cra_exit = crypto_fpu_exit_tfm;
- inst->alg.cra_blkcipher.setkey = crypto_fpu_setkey;
- inst->alg.cra_blkcipher.encrypt = crypto_fpu_encrypt;
- inst->alg.cra_blkcipher.decrypt = crypto_fpu_decrypt;
-
-out_put_alg:
- crypto_mod_put(alg);
- return inst;
-}
-
-static void crypto_fpu_free(struct crypto_instance *inst)
-{
- crypto_drop_spawn(crypto_instance_ctx(inst));
- kfree(inst);
-}
-
-static struct crypto_template crypto_fpu_tmpl = {
- .name = "fpu",
- .alloc = crypto_fpu_alloc,
- .free = crypto_fpu_free,
- .module = THIS_MODULE,
-};
-
-static int __init crypto_fpu_module_init(void)
-{
- return crypto_register_template(&crypto_fpu_tmpl);
-}
-
-static void __exit crypto_fpu_module_exit(void)
-{
- crypto_unregister_template(&crypto_fpu_tmpl);
-}
-
-module_init(crypto_fpu_module_init);
-module_exit(crypto_fpu_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("FPU block cipher wrapper");
diff --git a/arch/x86/crypto/ghash-clmulni-intel_asm.S b/arch/x86/crypto/ghash-clmulni-intel_asm.S
index 1eb7f90cb7b9..99cb983ded9e 100644
--- a/arch/x86/crypto/ghash-clmulni-intel_asm.S
+++ b/arch/x86/crypto/ghash-clmulni-intel_asm.S
@@ -1,33 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Accelerated GHASH implementation with Intel PCLMULQDQ-NI
* instructions. This file contains accelerated part of ghash
* implementation. More information about PCLMULQDQ can be found at:
*
- * http://software.intel.com/en-us/articles/carry-less-multiplication-and-its-usage-for-computing-the-gcm-mode/
+ * https://www.intel.com/content/dam/develop/external/us/en/documents/clmul-wp-rev-2-02-2014-04-20.pdf
*
* Copyright (c) 2009 Intel Corp.
* Author: Huang Ying <ying.huang@intel.com>
* Vinodh Gopal
* Erdinc Ozturk
* Deniz Karakoyunlu
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
*/
#include <linux/linkage.h>
-#include <asm/inst.h>
-
-.data
+#include <asm/frame.h>
+.section .rodata.cst16.bswap_mask, "aM", @progbits, 16
.align 16
.Lbswap_mask:
.octa 0x000102030405060708090a0b0c0d0e0f
-.Lpoly:
- .octa 0xc2000000000000000000000000000001
-.Ltwo_one:
- .octa 0x00000001000000000000000000000001
#define DATA %xmm0
#define SHASH %xmm1
@@ -51,16 +43,16 @@
* T2
* T3
*/
-__clmul_gf128mul_ble:
+SYM_FUNC_START_LOCAL(__clmul_gf128mul_ble)
movaps DATA, T1
pshufd $0b01001110, DATA, T2
pshufd $0b01001110, SHASH, T3
pxor DATA, T2
pxor SHASH, T3
- PCLMULQDQ 0x00 SHASH DATA # DATA = a0 * b0
- PCLMULQDQ 0x11 SHASH T1 # T1 = a1 * b1
- PCLMULQDQ 0x00 T3 T2 # T2 = (a1 + a0) * (b1 + b0)
+ pclmulqdq $0x00, SHASH, DATA # DATA = a0 * b0
+ pclmulqdq $0x11, SHASH, T1 # T1 = a1 * b1
+ pclmulqdq $0x00, T3, T2 # T2 = (a1 + a0) * (b1 + b0)
pxor DATA, T2
pxor T1, T2 # T2 = a0 * b1 + a1 * b0
@@ -93,65 +85,48 @@ __clmul_gf128mul_ble:
psrlq $1, T2
pxor T2, T1
pxor T1, DATA
- ret
+ RET
+SYM_FUNC_END(__clmul_gf128mul_ble)
-/* void clmul_ghash_mul(char *dst, const be128 *shash) */
-ENTRY(clmul_ghash_mul)
+/* void clmul_ghash_mul(char *dst, const le128 *shash) */
+SYM_FUNC_START(clmul_ghash_mul)
+ FRAME_BEGIN
movups (%rdi), DATA
movups (%rsi), SHASH
- movaps .Lbswap_mask, BSWAP
- PSHUFB_XMM BSWAP DATA
+ movaps .Lbswap_mask(%rip), BSWAP
+ pshufb BSWAP, DATA
call __clmul_gf128mul_ble
- PSHUFB_XMM BSWAP DATA
+ pshufb BSWAP, DATA
movups DATA, (%rdi)
- ret
+ FRAME_END
+ RET
+SYM_FUNC_END(clmul_ghash_mul)
/*
* void clmul_ghash_update(char *dst, const char *src, unsigned int srclen,
- * const be128 *shash);
+ * const le128 *shash);
*/
-ENTRY(clmul_ghash_update)
+SYM_FUNC_START(clmul_ghash_update)
+ FRAME_BEGIN
cmp $16, %rdx
jb .Lupdate_just_ret # check length
- movaps .Lbswap_mask, BSWAP
+ movaps .Lbswap_mask(%rip), BSWAP
movups (%rdi), DATA
movups (%rcx), SHASH
- PSHUFB_XMM BSWAP DATA
+ pshufb BSWAP, DATA
.align 4
.Lupdate_loop:
movups (%rsi), IN1
- PSHUFB_XMM BSWAP IN1
+ pshufb BSWAP, IN1
pxor IN1, DATA
call __clmul_gf128mul_ble
sub $16, %rdx
add $16, %rsi
cmp $16, %rdx
jge .Lupdate_loop
- PSHUFB_XMM BSWAP DATA
+ pshufb BSWAP, DATA
movups DATA, (%rdi)
.Lupdate_just_ret:
- ret
-
-/*
- * void clmul_ghash_setkey(be128 *shash, const u8 *key);
- *
- * Calculate hash_key << 1 mod poly
- */
-ENTRY(clmul_ghash_setkey)
- movaps .Lbswap_mask, BSWAP
- movups (%rsi), %xmm0
- PSHUFB_XMM BSWAP %xmm0
- movaps %xmm0, %xmm1
- psllq $1, %xmm0
- psrlq $63, %xmm1
- movaps %xmm1, %xmm2
- pslldq $8, %xmm1
- psrldq $8, %xmm2
- por %xmm1, %xmm0
- # reduction
- pshufd $0b00100100, %xmm2, %xmm1
- pcmpeqd .Ltwo_one, %xmm1
- pand .Lpoly, %xmm1
- pxor %xmm1, %xmm0
- movups %xmm0, (%rdi)
- ret
+ FRAME_END
+ RET
+SYM_FUNC_END(clmul_ghash_update)
diff --git a/arch/x86/crypto/ghash-clmulni-intel_glue.c b/arch/x86/crypto/ghash-clmulni-intel_glue.c
index 7a6e68e4f748..700ecaee9a08 100644
--- a/arch/x86/crypto/ghash-clmulni-intel_glue.c
+++ b/arch/x86/crypto/ghash-clmulni-intel_glue.c
@@ -1,13 +1,10 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Accelerated GHASH implementation with Intel PCLMULQDQ-NI
* instructions. This file contains glue code.
*
* Copyright (c) 2009 Intel Corp.
* Author: Huang Ying <ying.huang@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
*/
#include <linux/err.h>
@@ -19,24 +16,25 @@
#include <crypto/cryptd.h>
#include <crypto/gf128mul.h>
#include <crypto/internal/hash.h>
-#include <asm/i387.h>
+#include <crypto/internal/simd.h>
+#include <asm/cpu_device_id.h>
+#include <asm/simd.h>
+#include <asm/unaligned.h>
#define GHASH_BLOCK_SIZE 16
#define GHASH_DIGEST_SIZE 16
-void clmul_ghash_mul(char *dst, const be128 *shash);
+void clmul_ghash_mul(char *dst, const le128 *shash);
void clmul_ghash_update(char *dst, const char *src, unsigned int srclen,
- const be128 *shash);
-
-void clmul_ghash_setkey(be128 *shash, const u8 *key);
+ const le128 *shash);
struct ghash_async_ctx {
struct cryptd_ahash *cryptd_tfm;
};
struct ghash_ctx {
- be128 shash;
+ le128 shash;
};
struct ghash_desc_ctx {
@@ -57,14 +55,40 @@ static int ghash_setkey(struct crypto_shash *tfm,
const u8 *key, unsigned int keylen)
{
struct ghash_ctx *ctx = crypto_shash_ctx(tfm);
+ u64 a, b;
- if (keylen != GHASH_BLOCK_SIZE) {
- crypto_shash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ if (keylen != GHASH_BLOCK_SIZE)
return -EINVAL;
- }
-
- clmul_ghash_setkey(&ctx->shash, key);
+ /*
+ * GHASH maps bits to polynomial coefficients backwards, which makes it
+ * hard to implement. But it can be shown that the GHASH multiplication
+ *
+ * D * K (mod x^128 + x^7 + x^2 + x + 1)
+ *
+ * (where D is a data block and K is the key) is equivalent to:
+ *
+ * bitreflect(D) * bitreflect(K) * x^(-127)
+ * (mod x^128 + x^127 + x^126 + x^121 + 1)
+ *
+ * So, the code below precomputes:
+ *
+ * bitreflect(K) * x^(-127) (mod x^128 + x^127 + x^126 + x^121 + 1)
+ *
+ * ... but in Montgomery form (so that Montgomery multiplication can be
+ * used), i.e. with an extra x^128 factor, which means actually:
+ *
+ * bitreflect(K) * x (mod x^128 + x^127 + x^126 + x^121 + 1)
+ *
+ * The within-a-byte part of bitreflect() cancels out GHASH's built-in
+ * reflection, and thus bitreflect() is actually a byteswap.
+ */
+ a = get_unaligned_be64(key);
+ b = get_unaligned_be64(key + 8);
+ ctx->shash.a = cpu_to_le64((a << 1) | (b >> 63));
+ ctx->shash.b = cpu_to_le64((b << 1) | (a >> 63));
+ if (a >> 63)
+ ctx->shash.a ^= cpu_to_le64((u64)0xc2 << 56);
return 0;
}
@@ -145,11 +169,10 @@ static struct shash_alg ghash_alg = {
.cra_name = "__ghash",
.cra_driver_name = "__ghash-pclmulqdqni",
.cra_priority = 0,
- .cra_flags = CRYPTO_ALG_TYPE_SHASH,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
.cra_blocksize = GHASH_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct ghash_ctx),
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ghash_alg.base.cra_list),
},
};
@@ -159,30 +182,22 @@ static int ghash_async_init(struct ahash_request *req)
struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
struct ahash_request *cryptd_req = ahash_request_ctx(req);
struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
+ struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+ struct crypto_shash *child = cryptd_ahash_child(cryptd_tfm);
- if (!irq_fpu_usable()) {
- memcpy(cryptd_req, req, sizeof(*req));
- ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
- return crypto_ahash_init(cryptd_req);
- } else {
- struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
- struct crypto_shash *child = cryptd_ahash_child(cryptd_tfm);
-
- desc->tfm = child;
- desc->flags = req->base.flags;
- return crypto_shash_init(desc);
- }
+ desc->tfm = child;
+ return crypto_shash_init(desc);
}
static int ghash_async_update(struct ahash_request *req)
{
struct ahash_request *cryptd_req = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
- if (!irq_fpu_usable()) {
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
- struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
-
+ if (!crypto_simd_usable() ||
+ (in_atomic() && cryptd_ahash_queued(cryptd_tfm))) {
memcpy(cryptd_req, req, sizeof(*req));
ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
return crypto_ahash_update(cryptd_req);
@@ -195,12 +210,12 @@ static int ghash_async_update(struct ahash_request *req)
static int ghash_async_final(struct ahash_request *req)
{
struct ahash_request *cryptd_req = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
- if (!irq_fpu_usable()) {
- struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
- struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
- struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
-
+ if (!crypto_simd_usable() ||
+ (in_atomic() && cryptd_ahash_queued(cryptd_tfm))) {
memcpy(cryptd_req, req, sizeof(*req));
ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
return crypto_ahash_final(cryptd_req);
@@ -210,6 +225,29 @@ static int ghash_async_final(struct ahash_request *req)
}
}
+static int ghash_async_import(struct ahash_request *req, const void *in)
+{
+ struct ahash_request *cryptd_req = ahash_request_ctx(req);
+ struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+ struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ ghash_async_init(req);
+ memcpy(dctx, in, sizeof(*dctx));
+ return 0;
+
+}
+
+static int ghash_async_export(struct ahash_request *req, void *out)
+{
+ struct ahash_request *cryptd_req = ahash_request_ctx(req);
+ struct shash_desc *desc = cryptd_shash_desc(cryptd_req);
+ struct ghash_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ memcpy(out, dctx, sizeof(*dctx));
+ return 0;
+
+}
+
static int ghash_async_digest(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
@@ -217,7 +255,8 @@ static int ghash_async_digest(struct ahash_request *req)
struct ahash_request *cryptd_req = ahash_request_ctx(req);
struct cryptd_ahash *cryptd_tfm = ctx->cryptd_tfm;
- if (!irq_fpu_usable()) {
+ if (!crypto_simd_usable() ||
+ (in_atomic() && cryptd_ahash_queued(cryptd_tfm))) {
memcpy(cryptd_req, req, sizeof(*req));
ahash_request_set_tfm(cryptd_req, &cryptd_tfm->base);
return crypto_ahash_digest(cryptd_req);
@@ -226,7 +265,6 @@ static int ghash_async_digest(struct ahash_request *req)
struct crypto_shash *child = cryptd_ahash_child(cryptd_tfm);
desc->tfm = child;
- desc->flags = req->base.flags;
return shash_ahash_digest(req, desc);
}
}
@@ -236,16 +274,11 @@ static int ghash_async_setkey(struct crypto_ahash *tfm, const u8 *key,
{
struct ghash_async_ctx *ctx = crypto_ahash_ctx(tfm);
struct crypto_ahash *child = &ctx->cryptd_tfm->base;
- int err;
crypto_ahash_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_ahash_set_flags(child, crypto_ahash_get_flags(tfm)
& CRYPTO_TFM_REQ_MASK);
- err = crypto_ahash_setkey(child, key, keylen);
- crypto_ahash_set_flags(tfm, crypto_ahash_get_flags(child)
- & CRYPTO_TFM_RES_MASK);
-
- return 0;
+ return crypto_ahash_setkey(child, key, keylen);
}
static int ghash_async_init_tfm(struct crypto_tfm *tfm)
@@ -253,7 +286,9 @@ static int ghash_async_init_tfm(struct crypto_tfm *tfm)
struct cryptd_ahash *cryptd_tfm;
struct ghash_async_ctx *ctx = crypto_tfm_ctx(tfm);
- cryptd_tfm = cryptd_alloc_ahash("__ghash-pclmulqdqni", 0, 0);
+ cryptd_tfm = cryptd_alloc_ahash("__ghash-pclmulqdqni",
+ CRYPTO_ALG_INTERNAL,
+ CRYPTO_ALG_INTERNAL);
if (IS_ERR(cryptd_tfm))
return PTR_ERR(cryptd_tfm);
ctx->cryptd_tfm = cryptd_tfm;
@@ -277,32 +312,37 @@ static struct ahash_alg ghash_async_alg = {
.final = ghash_async_final,
.setkey = ghash_async_setkey,
.digest = ghash_async_digest,
+ .export = ghash_async_export,
+ .import = ghash_async_import,
.halg = {
.digestsize = GHASH_DIGEST_SIZE,
+ .statesize = sizeof(struct ghash_desc_ctx),
.base = {
.cra_name = "ghash",
.cra_driver_name = "ghash-clmulni",
.cra_priority = 400,
- .cra_flags = CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_ASYNC,
+ .cra_ctxsize = sizeof(struct ghash_async_ctx),
+ .cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = GHASH_BLOCK_SIZE,
- .cra_type = &crypto_ahash_type,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(ghash_async_alg.halg.base.cra_list),
.cra_init = ghash_async_init_tfm,
.cra_exit = ghash_async_exit_tfm,
},
},
};
+static const struct x86_cpu_id pcmul_cpu_id[] = {
+ X86_MATCH_FEATURE(X86_FEATURE_PCLMULQDQ, NULL), /* Pickle-Mickle-Duck */
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, pcmul_cpu_id);
+
static int __init ghash_pclmulqdqni_mod_init(void)
{
int err;
- if (!cpu_has_pclmulqdq) {
- printk(KERN_INFO "Intel PCLMULQDQ-NI instructions are not"
- " detected.\n");
+ if (!x86_match_cpu(pcmul_cpu_id))
return -ENODEV;
- }
err = crypto_register_shash(&ghash_alg);
if (err)
@@ -329,6 +369,5 @@ module_init(ghash_pclmulqdqni_mod_init);
module_exit(ghash_pclmulqdqni_mod_exit);
MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("GHASH Message Digest Algorithm, "
- "acclerated by PCLMULQDQ-NI");
-MODULE_ALIAS("ghash");
+MODULE_DESCRIPTION("GHASH hash function, accelerated by PCLMULQDQ-NI");
+MODULE_ALIAS_CRYPTO("ghash");
diff --git a/arch/x86/crypto/glue_helper-asm-avx.S b/arch/x86/crypto/glue_helper-asm-avx.S
new file mode 100644
index 000000000000..3da385271227
--- /dev/null
+++ b/arch/x86/crypto/glue_helper-asm-avx.S
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Shared glue code for 128bit block ciphers, AVX assembler macros
+ *
+ * Copyright Ā© 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ */
+
+#define load_8way(src, x0, x1, x2, x3, x4, x5, x6, x7) \
+ vmovdqu (0*16)(src), x0; \
+ vmovdqu (1*16)(src), x1; \
+ vmovdqu (2*16)(src), x2; \
+ vmovdqu (3*16)(src), x3; \
+ vmovdqu (4*16)(src), x4; \
+ vmovdqu (5*16)(src), x5; \
+ vmovdqu (6*16)(src), x6; \
+ vmovdqu (7*16)(src), x7;
+
+#define store_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7) \
+ vmovdqu x0, (0*16)(dst); \
+ vmovdqu x1, (1*16)(dst); \
+ vmovdqu x2, (2*16)(dst); \
+ vmovdqu x3, (3*16)(dst); \
+ vmovdqu x4, (4*16)(dst); \
+ vmovdqu x5, (5*16)(dst); \
+ vmovdqu x6, (6*16)(dst); \
+ vmovdqu x7, (7*16)(dst);
+
+#define store_cbc_8way(src, dst, x0, x1, x2, x3, x4, x5, x6, x7) \
+ vpxor (0*16)(src), x1, x1; \
+ vpxor (1*16)(src), x2, x2; \
+ vpxor (2*16)(src), x3, x3; \
+ vpxor (3*16)(src), x4, x4; \
+ vpxor (4*16)(src), x5, x5; \
+ vpxor (5*16)(src), x6, x6; \
+ vpxor (6*16)(src), x7, x7; \
+ store_8way(dst, x0, x1, x2, x3, x4, x5, x6, x7);
diff --git a/arch/x86/crypto/glue_helper-asm-avx2.S b/arch/x86/crypto/glue_helper-asm-avx2.S
new file mode 100644
index 000000000000..c77e9049431f
--- /dev/null
+++ b/arch/x86/crypto/glue_helper-asm-avx2.S
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Shared glue code for 128bit block ciphers, AVX2 assembler macros
+ *
+ * Copyright Ā© 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ */
+
+#define load_16way(src, x0, x1, x2, x3, x4, x5, x6, x7) \
+ vmovdqu (0*32)(src), x0; \
+ vmovdqu (1*32)(src), x1; \
+ vmovdqu (2*32)(src), x2; \
+ vmovdqu (3*32)(src), x3; \
+ vmovdqu (4*32)(src), x4; \
+ vmovdqu (5*32)(src), x5; \
+ vmovdqu (6*32)(src), x6; \
+ vmovdqu (7*32)(src), x7;
+
+#define store_16way(dst, x0, x1, x2, x3, x4, x5, x6, x7) \
+ vmovdqu x0, (0*32)(dst); \
+ vmovdqu x1, (1*32)(dst); \
+ vmovdqu x2, (2*32)(dst); \
+ vmovdqu x3, (3*32)(dst); \
+ vmovdqu x4, (4*32)(dst); \
+ vmovdqu x5, (5*32)(dst); \
+ vmovdqu x6, (6*32)(dst); \
+ vmovdqu x7, (7*32)(dst);
+
+#define store_cbc_16way(src, dst, x0, x1, x2, x3, x4, x5, x6, x7, t0) \
+ vpxor t0, t0, t0; \
+ vinserti128 $1, (src), t0, t0; \
+ vpxor t0, x0, x0; \
+ vpxor (0*32+16)(src), x1, x1; \
+ vpxor (1*32+16)(src), x2, x2; \
+ vpxor (2*32+16)(src), x3, x3; \
+ vpxor (3*32+16)(src), x4, x4; \
+ vpxor (4*32+16)(src), x5, x5; \
+ vpxor (5*32+16)(src), x6, x6; \
+ vpxor (6*32+16)(src), x7, x7; \
+ store_16way(dst, x0, x1, x2, x3, x4, x5, x6, x7);
diff --git a/arch/x86/crypto/nh-avx2-x86_64.S b/arch/x86/crypto/nh-avx2-x86_64.S
new file mode 100644
index 000000000000..ef73a3ab8726
--- /dev/null
+++ b/arch/x86/crypto/nh-avx2-x86_64.S
@@ -0,0 +1,158 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * NH - ε-almost-universal hash function, x86_64 AVX2 accelerated
+ *
+ * Copyright 2018 Google LLC
+ *
+ * Author: Eric Biggers <ebiggers@google.com>
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+#define PASS0_SUMS %ymm0
+#define PASS1_SUMS %ymm1
+#define PASS2_SUMS %ymm2
+#define PASS3_SUMS %ymm3
+#define K0 %ymm4
+#define K0_XMM %xmm4
+#define K1 %ymm5
+#define K1_XMM %xmm5
+#define K2 %ymm6
+#define K2_XMM %xmm6
+#define K3 %ymm7
+#define K3_XMM %xmm7
+#define T0 %ymm8
+#define T1 %ymm9
+#define T2 %ymm10
+#define T2_XMM %xmm10
+#define T3 %ymm11
+#define T3_XMM %xmm11
+#define T4 %ymm12
+#define T5 %ymm13
+#define T6 %ymm14
+#define T7 %ymm15
+#define KEY %rdi
+#define MESSAGE %rsi
+#define MESSAGE_LEN %rdx
+#define HASH %rcx
+
+.macro _nh_2xstride k0, k1, k2, k3
+
+ // Add message words to key words
+ vpaddd \k0, T3, T0
+ vpaddd \k1, T3, T1
+ vpaddd \k2, T3, T2
+ vpaddd \k3, T3, T3
+
+ // Multiply 32x32 => 64 and accumulate
+ vpshufd $0x10, T0, T4
+ vpshufd $0x32, T0, T0
+ vpshufd $0x10, T1, T5
+ vpshufd $0x32, T1, T1
+ vpshufd $0x10, T2, T6
+ vpshufd $0x32, T2, T2
+ vpshufd $0x10, T3, T7
+ vpshufd $0x32, T3, T3
+ vpmuludq T4, T0, T0
+ vpmuludq T5, T1, T1
+ vpmuludq T6, T2, T2
+ vpmuludq T7, T3, T3
+ vpaddq T0, PASS0_SUMS, PASS0_SUMS
+ vpaddq T1, PASS1_SUMS, PASS1_SUMS
+ vpaddq T2, PASS2_SUMS, PASS2_SUMS
+ vpaddq T3, PASS3_SUMS, PASS3_SUMS
+.endm
+
+/*
+ * void nh_avx2(const u32 *key, const u8 *message, size_t message_len,
+ * __le64 hash[NH_NUM_PASSES])
+ *
+ * It's guaranteed that message_len % 16 == 0.
+ */
+SYM_TYPED_FUNC_START(nh_avx2)
+
+ vmovdqu 0x00(KEY), K0
+ vmovdqu 0x10(KEY), K1
+ add $0x20, KEY
+ vpxor PASS0_SUMS, PASS0_SUMS, PASS0_SUMS
+ vpxor PASS1_SUMS, PASS1_SUMS, PASS1_SUMS
+ vpxor PASS2_SUMS, PASS2_SUMS, PASS2_SUMS
+ vpxor PASS3_SUMS, PASS3_SUMS, PASS3_SUMS
+
+ sub $0x40, MESSAGE_LEN
+ jl .Lloop4_done
+.Lloop4:
+ vmovdqu (MESSAGE), T3
+ vmovdqu 0x00(KEY), K2
+ vmovdqu 0x10(KEY), K3
+ _nh_2xstride K0, K1, K2, K3
+
+ vmovdqu 0x20(MESSAGE), T3
+ vmovdqu 0x20(KEY), K0
+ vmovdqu 0x30(KEY), K1
+ _nh_2xstride K2, K3, K0, K1
+
+ add $0x40, MESSAGE
+ add $0x40, KEY
+ sub $0x40, MESSAGE_LEN
+ jge .Lloop4
+
+.Lloop4_done:
+ and $0x3f, MESSAGE_LEN
+ jz .Ldone
+
+ cmp $0x20, MESSAGE_LEN
+ jl .Llast
+
+ // 2 or 3 strides remain; do 2 more.
+ vmovdqu (MESSAGE), T3
+ vmovdqu 0x00(KEY), K2
+ vmovdqu 0x10(KEY), K3
+ _nh_2xstride K0, K1, K2, K3
+ add $0x20, MESSAGE
+ add $0x20, KEY
+ sub $0x20, MESSAGE_LEN
+ jz .Ldone
+ vmovdqa K2, K0
+ vmovdqa K3, K1
+.Llast:
+ // Last stride. Zero the high 128 bits of the message and keys so they
+ // don't affect the result when processing them like 2 strides.
+ vmovdqu (MESSAGE), T3_XMM
+ vmovdqa K0_XMM, K0_XMM
+ vmovdqa K1_XMM, K1_XMM
+ vmovdqu 0x00(KEY), K2_XMM
+ vmovdqu 0x10(KEY), K3_XMM
+ _nh_2xstride K0, K1, K2, K3
+
+.Ldone:
+ // Sum the accumulators for each pass, then store the sums to 'hash'
+
+ // PASS0_SUMS is (0A 0B 0C 0D)
+ // PASS1_SUMS is (1A 1B 1C 1D)
+ // PASS2_SUMS is (2A 2B 2C 2D)
+ // PASS3_SUMS is (3A 3B 3C 3D)
+ // We need the horizontal sums:
+ // (0A + 0B + 0C + 0D,
+ // 1A + 1B + 1C + 1D,
+ // 2A + 2B + 2C + 2D,
+ // 3A + 3B + 3C + 3D)
+ //
+
+ vpunpcklqdq PASS1_SUMS, PASS0_SUMS, T0 // T0 = (0A 1A 0C 1C)
+ vpunpckhqdq PASS1_SUMS, PASS0_SUMS, T1 // T1 = (0B 1B 0D 1D)
+ vpunpcklqdq PASS3_SUMS, PASS2_SUMS, T2 // T2 = (2A 3A 2C 3C)
+ vpunpckhqdq PASS3_SUMS, PASS2_SUMS, T3 // T3 = (2B 3B 2D 3D)
+
+ vinserti128 $0x1, T2_XMM, T0, T4 // T4 = (0A 1A 2A 3A)
+ vinserti128 $0x1, T3_XMM, T1, T5 // T5 = (0B 1B 2B 3B)
+ vperm2i128 $0x31, T2, T0, T0 // T0 = (0C 1C 2C 3C)
+ vperm2i128 $0x31, T3, T1, T1 // T1 = (0D 1D 2D 3D)
+
+ vpaddq T5, T4, T4
+ vpaddq T1, T0, T0
+ vpaddq T4, T0, T0
+ vmovdqu T0, (HASH)
+ RET
+SYM_FUNC_END(nh_avx2)
diff --git a/arch/x86/crypto/nh-sse2-x86_64.S b/arch/x86/crypto/nh-sse2-x86_64.S
new file mode 100644
index 000000000000..75fb994b6d17
--- /dev/null
+++ b/arch/x86/crypto/nh-sse2-x86_64.S
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * NH - ε-almost-universal hash function, x86_64 SSE2 accelerated
+ *
+ * Copyright 2018 Google LLC
+ *
+ * Author: Eric Biggers <ebiggers@google.com>
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+#define PASS0_SUMS %xmm0
+#define PASS1_SUMS %xmm1
+#define PASS2_SUMS %xmm2
+#define PASS3_SUMS %xmm3
+#define K0 %xmm4
+#define K1 %xmm5
+#define K2 %xmm6
+#define K3 %xmm7
+#define T0 %xmm8
+#define T1 %xmm9
+#define T2 %xmm10
+#define T3 %xmm11
+#define T4 %xmm12
+#define T5 %xmm13
+#define T6 %xmm14
+#define T7 %xmm15
+#define KEY %rdi
+#define MESSAGE %rsi
+#define MESSAGE_LEN %rdx
+#define HASH %rcx
+
+.macro _nh_stride k0, k1, k2, k3, offset
+
+ // Load next message stride
+ movdqu \offset(MESSAGE), T1
+
+ // Load next key stride
+ movdqu \offset(KEY), \k3
+
+ // Add message words to key words
+ movdqa T1, T2
+ movdqa T1, T3
+ paddd T1, \k0 // reuse k0 to avoid a move
+ paddd \k1, T1
+ paddd \k2, T2
+ paddd \k3, T3
+
+ // Multiply 32x32 => 64 and accumulate
+ pshufd $0x10, \k0, T4
+ pshufd $0x32, \k0, \k0
+ pshufd $0x10, T1, T5
+ pshufd $0x32, T1, T1
+ pshufd $0x10, T2, T6
+ pshufd $0x32, T2, T2
+ pshufd $0x10, T3, T7
+ pshufd $0x32, T3, T3
+ pmuludq T4, \k0
+ pmuludq T5, T1
+ pmuludq T6, T2
+ pmuludq T7, T3
+ paddq \k0, PASS0_SUMS
+ paddq T1, PASS1_SUMS
+ paddq T2, PASS2_SUMS
+ paddq T3, PASS3_SUMS
+.endm
+
+/*
+ * void nh_sse2(const u32 *key, const u8 *message, size_t message_len,
+ * __le64 hash[NH_NUM_PASSES])
+ *
+ * It's guaranteed that message_len % 16 == 0.
+ */
+SYM_TYPED_FUNC_START(nh_sse2)
+
+ movdqu 0x00(KEY), K0
+ movdqu 0x10(KEY), K1
+ movdqu 0x20(KEY), K2
+ add $0x30, KEY
+ pxor PASS0_SUMS, PASS0_SUMS
+ pxor PASS1_SUMS, PASS1_SUMS
+ pxor PASS2_SUMS, PASS2_SUMS
+ pxor PASS3_SUMS, PASS3_SUMS
+
+ sub $0x40, MESSAGE_LEN
+ jl .Lloop4_done
+.Lloop4:
+ _nh_stride K0, K1, K2, K3, 0x00
+ _nh_stride K1, K2, K3, K0, 0x10
+ _nh_stride K2, K3, K0, K1, 0x20
+ _nh_stride K3, K0, K1, K2, 0x30
+ add $0x40, KEY
+ add $0x40, MESSAGE
+ sub $0x40, MESSAGE_LEN
+ jge .Lloop4
+
+.Lloop4_done:
+ and $0x3f, MESSAGE_LEN
+ jz .Ldone
+ _nh_stride K0, K1, K2, K3, 0x00
+
+ sub $0x10, MESSAGE_LEN
+ jz .Ldone
+ _nh_stride K1, K2, K3, K0, 0x10
+
+ sub $0x10, MESSAGE_LEN
+ jz .Ldone
+ _nh_stride K2, K3, K0, K1, 0x20
+
+.Ldone:
+ // Sum the accumulators for each pass, then store the sums to 'hash'
+ movdqa PASS0_SUMS, T0
+ movdqa PASS2_SUMS, T1
+ punpcklqdq PASS1_SUMS, T0 // => (PASS0_SUM_A PASS1_SUM_A)
+ punpcklqdq PASS3_SUMS, T1 // => (PASS2_SUM_A PASS3_SUM_A)
+ punpckhqdq PASS1_SUMS, PASS0_SUMS // => (PASS0_SUM_B PASS1_SUM_B)
+ punpckhqdq PASS3_SUMS, PASS2_SUMS // => (PASS2_SUM_B PASS3_SUM_B)
+ paddq PASS0_SUMS, T0
+ paddq PASS2_SUMS, T1
+ movdqu T0, 0x00(HASH)
+ movdqu T1, 0x10(HASH)
+ RET
+SYM_FUNC_END(nh_sse2)
diff --git a/arch/x86/crypto/nhpoly1305-avx2-glue.c b/arch/x86/crypto/nhpoly1305-avx2-glue.c
new file mode 100644
index 000000000000..46b036204ed9
--- /dev/null
+++ b/arch/x86/crypto/nhpoly1305-avx2-glue.c
@@ -0,0 +1,72 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NHPoly1305 - ε-almost-āˆ†-universal hash function for Adiantum
+ * (AVX2 accelerated version)
+ *
+ * Copyright 2018 Google LLC
+ */
+
+#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
+#include <crypto/nhpoly1305.h>
+#include <linux/module.h>
+#include <linux/sizes.h>
+#include <asm/simd.h>
+
+asmlinkage void nh_avx2(const u32 *key, const u8 *message, size_t message_len,
+ __le64 hash[NH_NUM_PASSES]);
+
+static int nhpoly1305_avx2_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ if (srclen < 64 || !crypto_simd_usable())
+ return crypto_nhpoly1305_update(desc, src, srclen);
+
+ do {
+ unsigned int n = min_t(unsigned int, srclen, SZ_4K);
+
+ kernel_fpu_begin();
+ crypto_nhpoly1305_update_helper(desc, src, n, nh_avx2);
+ kernel_fpu_end();
+ src += n;
+ srclen -= n;
+ } while (srclen);
+ return 0;
+}
+
+static struct shash_alg nhpoly1305_alg = {
+ .base.cra_name = "nhpoly1305",
+ .base.cra_driver_name = "nhpoly1305-avx2",
+ .base.cra_priority = 300,
+ .base.cra_ctxsize = sizeof(struct nhpoly1305_key),
+ .base.cra_module = THIS_MODULE,
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .init = crypto_nhpoly1305_init,
+ .update = nhpoly1305_avx2_update,
+ .final = crypto_nhpoly1305_final,
+ .setkey = crypto_nhpoly1305_setkey,
+ .descsize = sizeof(struct nhpoly1305_state),
+};
+
+static int __init nhpoly1305_mod_init(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_AVX2) ||
+ !boot_cpu_has(X86_FEATURE_OSXSAVE))
+ return -ENODEV;
+
+ return crypto_register_shash(&nhpoly1305_alg);
+}
+
+static void __exit nhpoly1305_mod_exit(void)
+{
+ crypto_unregister_shash(&nhpoly1305_alg);
+}
+
+module_init(nhpoly1305_mod_init);
+module_exit(nhpoly1305_mod_exit);
+
+MODULE_DESCRIPTION("NHPoly1305 ε-almost-āˆ†-universal hash function (AVX2-accelerated)");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eric Biggers <ebiggers@google.com>");
+MODULE_ALIAS_CRYPTO("nhpoly1305");
+MODULE_ALIAS_CRYPTO("nhpoly1305-avx2");
diff --git a/arch/x86/crypto/nhpoly1305-sse2-glue.c b/arch/x86/crypto/nhpoly1305-sse2-glue.c
new file mode 100644
index 000000000000..4a4970d75107
--- /dev/null
+++ b/arch/x86/crypto/nhpoly1305-sse2-glue.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * NHPoly1305 - ε-almost-āˆ†-universal hash function for Adiantum
+ * (SSE2 accelerated version)
+ *
+ * Copyright 2018 Google LLC
+ */
+
+#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
+#include <crypto/nhpoly1305.h>
+#include <linux/module.h>
+#include <linux/sizes.h>
+#include <asm/simd.h>
+
+asmlinkage void nh_sse2(const u32 *key, const u8 *message, size_t message_len,
+ __le64 hash[NH_NUM_PASSES]);
+
+static int nhpoly1305_sse2_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ if (srclen < 64 || !crypto_simd_usable())
+ return crypto_nhpoly1305_update(desc, src, srclen);
+
+ do {
+ unsigned int n = min_t(unsigned int, srclen, SZ_4K);
+
+ kernel_fpu_begin();
+ crypto_nhpoly1305_update_helper(desc, src, n, nh_sse2);
+ kernel_fpu_end();
+ src += n;
+ srclen -= n;
+ } while (srclen);
+ return 0;
+}
+
+static struct shash_alg nhpoly1305_alg = {
+ .base.cra_name = "nhpoly1305",
+ .base.cra_driver_name = "nhpoly1305-sse2",
+ .base.cra_priority = 200,
+ .base.cra_ctxsize = sizeof(struct nhpoly1305_key),
+ .base.cra_module = THIS_MODULE,
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .init = crypto_nhpoly1305_init,
+ .update = nhpoly1305_sse2_update,
+ .final = crypto_nhpoly1305_final,
+ .setkey = crypto_nhpoly1305_setkey,
+ .descsize = sizeof(struct nhpoly1305_state),
+};
+
+static int __init nhpoly1305_mod_init(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_XMM2))
+ return -ENODEV;
+
+ return crypto_register_shash(&nhpoly1305_alg);
+}
+
+static void __exit nhpoly1305_mod_exit(void)
+{
+ crypto_unregister_shash(&nhpoly1305_alg);
+}
+
+module_init(nhpoly1305_mod_init);
+module_exit(nhpoly1305_mod_exit);
+
+MODULE_DESCRIPTION("NHPoly1305 ε-almost-āˆ†-universal hash function (SSE2-accelerated)");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Eric Biggers <ebiggers@google.com>");
+MODULE_ALIAS_CRYPTO("nhpoly1305");
+MODULE_ALIAS_CRYPTO("nhpoly1305-sse2");
diff --git a/arch/x86/crypto/poly1305-x86_64-cryptogams.pl b/arch/x86/crypto/poly1305-x86_64-cryptogams.pl
new file mode 100644
index 000000000000..b9abcd79c1f4
--- /dev/null
+++ b/arch/x86/crypto/poly1305-x86_64-cryptogams.pl
@@ -0,0 +1,4248 @@
+#!/usr/bin/env perl
+# SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
+#
+# Copyright (C) 2017-2018 Samuel Neves <sneves@dei.uc.pt>. All Rights Reserved.
+# Copyright (C) 2017-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+# Copyright (C) 2006-2017 CRYPTOGAMS by <appro@openssl.org>. All Rights Reserved.
+#
+# This code is taken from the OpenSSL project but the author, Andy Polyakov,
+# has relicensed it under the licenses specified in the SPDX header above.
+# The original headers, including the original license headers, are
+# included below for completeness.
+#
+# ====================================================================
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+# ====================================================================
+#
+# This module implements Poly1305 hash for x86_64.
+#
+# March 2015
+#
+# Initial release.
+#
+# December 2016
+#
+# Add AVX512F+VL+BW code path.
+#
+# November 2017
+#
+# Convert AVX512F+VL+BW code path to pure AVX512F, so that it can be
+# executed even on Knights Landing. Trigger for modification was
+# observation that AVX512 code paths can negatively affect overall
+# Skylake-X system performance. Since we are likely to suppress
+# AVX512F capability flag [at least on Skylake-X], conversion serves
+# as kind of "investment protection". Note that next *lake processor,
+# Cannonlake, has AVX512IFMA code path to execute...
+#
+# Numbers are cycles per processed byte with poly1305_blocks alone,
+# measured with rdtsc at fixed clock frequency.
+#
+# IALU/gcc-4.8(*) AVX(**) AVX2 AVX-512
+# P4 4.46/+120% -
+# Core 2 2.41/+90% -
+# Westmere 1.88/+120% -
+# Sandy Bridge 1.39/+140% 1.10
+# Haswell 1.14/+175% 1.11 0.65
+# Skylake[-X] 1.13/+120% 0.96 0.51 [0.35]
+# Silvermont 2.83/+95% -
+# Knights L 3.60/? 1.65 1.10 0.41(***)
+# Goldmont 1.70/+180% -
+# VIA Nano 1.82/+150% -
+# Sledgehammer 1.38/+160% -
+# Bulldozer 2.30/+130% 0.97
+# Ryzen 1.15/+200% 1.08 1.18
+#
+# (*) improvement coefficients relative to clang are more modest and
+# are ~50% on most processors, in both cases we are comparing to
+# __int128 code;
+# (**) SSE2 implementation was attempted, but among non-AVX processors
+# it was faster than integer-only code only on older Intel P4 and
+# Core processors, 50-30%, less newer processor is, but slower on
+# contemporary ones, for example almost 2x slower on Atom, and as
+# former are naturally disappearing, SSE2 is deemed unnecessary;
+# (***) strangely enough performance seems to vary from core to core,
+# listed result is best case;
+
+$flavour = shift;
+$output = shift;
+if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
+
+$win64=0; $win64=1 if ($flavour =~ /[nm]asm|mingw64/ || $output =~ /\.asm$/);
+$kernel=0; $kernel=1 if (!$flavour && !$output);
+
+if (!$kernel) {
+ $0 =~ m/(.*[\/\\])[^\/\\]+$/; $dir=$1;
+ ( $xlate="${dir}x86_64-xlate.pl" and -f $xlate ) or
+ ( $xlate="${dir}../../perlasm/x86_64-xlate.pl" and -f $xlate) or
+ die "can't locate x86_64-xlate.pl";
+
+ open OUT,"| \"$^X\" \"$xlate\" $flavour \"$output\"";
+ *STDOUT=*OUT;
+
+ if (`$ENV{CC} -Wa,-v -c -o /dev/null -x assembler /dev/null 2>&1`
+ =~ /GNU assembler version ([2-9]\.[0-9]+)/) {
+ $avx = ($1>=2.19) + ($1>=2.22) + ($1>=2.25);
+ }
+
+ if (!$avx && $win64 && ($flavour =~ /nasm/ || $ENV{ASM} =~ /nasm/) &&
+ `nasm -v 2>&1` =~ /NASM version ([2-9]\.[0-9]+)(?:\.([0-9]+))?/) {
+ $avx = ($1>=2.09) + ($1>=2.10) + ($1>=2.12);
+ $avx += 1 if ($1==2.11 && $2>=8);
+ }
+
+ if (!$avx && $win64 && ($flavour =~ /masm/ || $ENV{ASM} =~ /ml64/) &&
+ `ml64 2>&1` =~ /Version ([0-9]+)\./) {
+ $avx = ($1>=10) + ($1>=11);
+ }
+
+ if (!$avx && `$ENV{CC} -v 2>&1` =~ /((?:^clang|LLVM) version|.*based on LLVM) ([3-9]\.[0-9]+)/) {
+ $avx = ($2>=3.0) + ($2>3.0);
+ }
+} else {
+ $avx = 4; # The kernel uses ifdefs for this.
+}
+
+sub declare_function() {
+ my ($name, $align, $nargs) = @_;
+ if($kernel) {
+ $code .= "SYM_FUNC_START($name)\n";
+ $code .= ".L$name:\n";
+ } else {
+ $code .= ".globl $name\n";
+ $code .= ".type $name,\@function,$nargs\n";
+ $code .= ".align $align\n";
+ $code .= "$name:\n";
+ }
+}
+
+sub end_function() {
+ my ($name) = @_;
+ if($kernel) {
+ $code .= "SYM_FUNC_END($name)\n";
+ } else {
+ $code .= ".size $name,.-$name\n";
+ }
+}
+
+$code.=<<___ if $kernel;
+#include <linux/linkage.h>
+___
+
+if ($avx) {
+$code.=<<___ if $kernel;
+.section .rodata
+___
+$code.=<<___;
+.align 64
+.Lconst:
+.Lmask24:
+.long 0x0ffffff,0,0x0ffffff,0,0x0ffffff,0,0x0ffffff,0
+.L129:
+.long `1<<24`,0,`1<<24`,0,`1<<24`,0,`1<<24`,0
+.Lmask26:
+.long 0x3ffffff,0,0x3ffffff,0,0x3ffffff,0,0x3ffffff,0
+.Lpermd_avx2:
+.long 2,2,2,3,2,0,2,1
+.Lpermd_avx512:
+.long 0,0,0,1, 0,2,0,3, 0,4,0,5, 0,6,0,7
+
+.L2_44_inp_permd:
+.long 0,1,1,2,2,3,7,7
+.L2_44_inp_shift:
+.quad 0,12,24,64
+.L2_44_mask:
+.quad 0xfffffffffff,0xfffffffffff,0x3ffffffffff,0xffffffffffffffff
+.L2_44_shift_rgt:
+.quad 44,44,42,64
+.L2_44_shift_lft:
+.quad 8,8,10,64
+
+.align 64
+.Lx_mask44:
+.quad 0xfffffffffff,0xfffffffffff,0xfffffffffff,0xfffffffffff
+.quad 0xfffffffffff,0xfffffffffff,0xfffffffffff,0xfffffffffff
+.Lx_mask42:
+.quad 0x3ffffffffff,0x3ffffffffff,0x3ffffffffff,0x3ffffffffff
+.quad 0x3ffffffffff,0x3ffffffffff,0x3ffffffffff,0x3ffffffffff
+___
+}
+$code.=<<___ if (!$kernel);
+.asciz "Poly1305 for x86_64, CRYPTOGAMS by <appro\@openssl.org>"
+.align 16
+___
+
+my ($ctx,$inp,$len,$padbit)=("%rdi","%rsi","%rdx","%rcx");
+my ($mac,$nonce)=($inp,$len); # *_emit arguments
+my ($d1,$d2,$d3, $r0,$r1,$s1)=("%r8","%r9","%rdi","%r11","%r12","%r13");
+my ($h0,$h1,$h2)=("%r14","%rbx","%r10");
+
+sub poly1305_iteration {
+# input: copy of $r1 in %rax, $h0-$h2, $r0-$r1
+# output: $h0-$h2 *= $r0-$r1
+$code.=<<___;
+ mulq $h0 # h0*r1
+ mov %rax,$d2
+ mov $r0,%rax
+ mov %rdx,$d3
+
+ mulq $h0 # h0*r0
+ mov %rax,$h0 # future $h0
+ mov $r0,%rax
+ mov %rdx,$d1
+
+ mulq $h1 # h1*r0
+ add %rax,$d2
+ mov $s1,%rax
+ adc %rdx,$d3
+
+ mulq $h1 # h1*s1
+ mov $h2,$h1 # borrow $h1
+ add %rax,$h0
+ adc %rdx,$d1
+
+ imulq $s1,$h1 # h2*s1
+ add $h1,$d2
+ mov $d1,$h1
+ adc \$0,$d3
+
+ imulq $r0,$h2 # h2*r0
+ add $d2,$h1
+ mov \$-4,%rax # mask value
+ adc $h2,$d3
+
+ and $d3,%rax # last reduction step
+ mov $d3,$h2
+ shr \$2,$d3
+ and \$3,$h2
+ add $d3,%rax
+ add %rax,$h0
+ adc \$0,$h1
+ adc \$0,$h2
+___
+}
+
+########################################################################
+# Layout of opaque area is following.
+#
+# unsigned __int64 h[3]; # current hash value base 2^64
+# unsigned __int64 r[2]; # key value base 2^64
+
+$code.=<<___;
+.text
+___
+$code.=<<___ if (!$kernel);
+.extern OPENSSL_ia32cap_P
+
+.globl poly1305_init_x86_64
+.hidden poly1305_init_x86_64
+.globl poly1305_blocks_x86_64
+.hidden poly1305_blocks_x86_64
+.globl poly1305_emit_x86_64
+.hidden poly1305_emit_x86_64
+___
+&declare_function("poly1305_init_x86_64", 32, 3);
+$code.=<<___;
+ xor %eax,%eax
+ mov %rax,0($ctx) # initialize hash value
+ mov %rax,8($ctx)
+ mov %rax,16($ctx)
+
+ test $inp,$inp
+ je .Lno_key
+___
+$code.=<<___ if (!$kernel);
+ lea poly1305_blocks_x86_64(%rip),%r10
+ lea poly1305_emit_x86_64(%rip),%r11
+___
+$code.=<<___ if (!$kernel && $avx);
+ mov OPENSSL_ia32cap_P+4(%rip),%r9
+ lea poly1305_blocks_avx(%rip),%rax
+ lea poly1305_emit_avx(%rip),%rcx
+ bt \$`60-32`,%r9 # AVX?
+ cmovc %rax,%r10
+ cmovc %rcx,%r11
+___
+$code.=<<___ if (!$kernel && $avx>1);
+ lea poly1305_blocks_avx2(%rip),%rax
+ bt \$`5+32`,%r9 # AVX2?
+ cmovc %rax,%r10
+___
+$code.=<<___ if (!$kernel && $avx>3);
+ mov \$`(1<<31|1<<21|1<<16)`,%rax
+ shr \$32,%r9
+ and %rax,%r9
+ cmp %rax,%r9
+ je .Linit_base2_44
+___
+$code.=<<___;
+ mov \$0x0ffffffc0fffffff,%rax
+ mov \$0x0ffffffc0ffffffc,%rcx
+ and 0($inp),%rax
+ and 8($inp),%rcx
+ mov %rax,24($ctx)
+ mov %rcx,32($ctx)
+___
+$code.=<<___ if (!$kernel && $flavour !~ /elf32/);
+ mov %r10,0(%rdx)
+ mov %r11,8(%rdx)
+___
+$code.=<<___ if (!$kernel && $flavour =~ /elf32/);
+ mov %r10d,0(%rdx)
+ mov %r11d,4(%rdx)
+___
+$code.=<<___;
+ mov \$1,%eax
+.Lno_key:
+ RET
+___
+&end_function("poly1305_init_x86_64");
+
+&declare_function("poly1305_blocks_x86_64", 32, 4);
+$code.=<<___;
+.cfi_startproc
+.Lblocks:
+ shr \$4,$len
+ jz .Lno_data # too short
+
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+ push $ctx
+.cfi_push $ctx
+.Lblocks_body:
+
+ mov $len,%r15 # reassign $len
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ mov 0($ctx),$h0 # load hash value
+ mov 8($ctx),$h1
+ mov 16($ctx),$h2
+
+ mov $s1,$r1
+ shr \$2,$s1
+ mov $r1,%rax
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+ jmp .Loop
+
+.align 32
+.Loop:
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+___
+
+ &poly1305_iteration();
+
+$code.=<<___;
+ mov $r1,%rax
+ dec %r15 # len-=16
+ jnz .Loop
+
+ mov 0(%rsp),$ctx
+.cfi_restore $ctx
+
+ mov $h0,0($ctx) # store hash value
+ mov $h1,8($ctx)
+ mov $h2,16($ctx)
+
+ mov 8(%rsp),%r15
+.cfi_restore %r15
+ mov 16(%rsp),%r14
+.cfi_restore %r14
+ mov 24(%rsp),%r13
+.cfi_restore %r13
+ mov 32(%rsp),%r12
+.cfi_restore %r12
+ mov 40(%rsp),%rbx
+.cfi_restore %rbx
+ lea 48(%rsp),%rsp
+.cfi_adjust_cfa_offset -48
+.Lno_data:
+.Lblocks_epilogue:
+ RET
+.cfi_endproc
+___
+&end_function("poly1305_blocks_x86_64");
+
+&declare_function("poly1305_emit_x86_64", 32, 3);
+$code.=<<___;
+.Lemit:
+ mov 0($ctx),%r8 # load hash value
+ mov 8($ctx),%r9
+ mov 16($ctx),%r10
+
+ mov %r8,%rax
+ add \$5,%r8 # compare to modulus
+ mov %r9,%rcx
+ adc \$0,%r9
+ adc \$0,%r10
+ shr \$2,%r10 # did 130-bit value overflow?
+ cmovnz %r8,%rax
+ cmovnz %r9,%rcx
+
+ add 0($nonce),%rax # accumulate nonce
+ adc 8($nonce),%rcx
+ mov %rax,0($mac) # write result
+ mov %rcx,8($mac)
+
+ RET
+___
+&end_function("poly1305_emit_x86_64");
+if ($avx) {
+
+########################################################################
+# Layout of opaque area is following.
+#
+# unsigned __int32 h[5]; # current hash value base 2^26
+# unsigned __int32 is_base2_26;
+# unsigned __int64 r[2]; # key value base 2^64
+# unsigned __int64 pad;
+# struct { unsigned __int32 r^2, r^1, r^4, r^3; } r[9];
+#
+# where r^n are base 2^26 digits of degrees of multiplier key. There are
+# 5 digits, but last four are interleaved with multiples of 5, totalling
+# in 9 elements: r0, r1, 5*r1, r2, 5*r2, r3, 5*r3, r4, 5*r4.
+
+my ($H0,$H1,$H2,$H3,$H4, $T0,$T1,$T2,$T3,$T4, $D0,$D1,$D2,$D3,$D4, $MASK) =
+ map("%xmm$_",(0..15));
+
+$code.=<<___;
+.type __poly1305_block,\@abi-omnipotent
+.align 32
+__poly1305_block:
+ push $ctx
+___
+ &poly1305_iteration();
+$code.=<<___;
+ pop $ctx
+ RET
+.size __poly1305_block,.-__poly1305_block
+
+.type __poly1305_init_avx,\@abi-omnipotent
+.align 32
+__poly1305_init_avx:
+ push %rbp
+ mov %rsp,%rbp
+ mov $r0,$h0
+ mov $r1,$h1
+ xor $h2,$h2
+
+ lea 48+64($ctx),$ctx # size optimization
+
+ mov $r1,%rax
+ call __poly1305_block # r^2
+
+ mov \$0x3ffffff,%eax # save interleaved r^2 and r base 2^26
+ mov \$0x3ffffff,%edx
+ mov $h0,$d1
+ and $h0#d,%eax
+ mov $r0,$d2
+ and $r0#d,%edx
+ mov %eax,`16*0+0-64`($ctx)
+ shr \$26,$d1
+ mov %edx,`16*0+4-64`($ctx)
+ shr \$26,$d2
+
+ mov \$0x3ffffff,%eax
+ mov \$0x3ffffff,%edx
+ and $d1#d,%eax
+ and $d2#d,%edx
+ mov %eax,`16*1+0-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov %edx,`16*1+4-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ mov %eax,`16*2+0-64`($ctx)
+ shr \$26,$d1
+ mov %edx,`16*2+4-64`($ctx)
+ shr \$26,$d2
+
+ mov $h1,%rax
+ mov $r1,%rdx
+ shl \$12,%rax
+ shl \$12,%rdx
+ or $d1,%rax
+ or $d2,%rdx
+ and \$0x3ffffff,%eax
+ and \$0x3ffffff,%edx
+ mov %eax,`16*3+0-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov %edx,`16*3+4-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ mov %eax,`16*4+0-64`($ctx)
+ mov $h1,$d1
+ mov %edx,`16*4+4-64`($ctx)
+ mov $r1,$d2
+
+ mov \$0x3ffffff,%eax
+ mov \$0x3ffffff,%edx
+ shr \$14,$d1
+ shr \$14,$d2
+ and $d1#d,%eax
+ and $d2#d,%edx
+ mov %eax,`16*5+0-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov %edx,`16*5+4-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ mov %eax,`16*6+0-64`($ctx)
+ shr \$26,$d1
+ mov %edx,`16*6+4-64`($ctx)
+ shr \$26,$d2
+
+ mov $h2,%rax
+ shl \$24,%rax
+ or %rax,$d1
+ mov $d1#d,`16*7+0-64`($ctx)
+ lea ($d1,$d1,4),$d1 # *5
+ mov $d2#d,`16*7+4-64`($ctx)
+ lea ($d2,$d2,4),$d2 # *5
+ mov $d1#d,`16*8+0-64`($ctx)
+ mov $d2#d,`16*8+4-64`($ctx)
+
+ mov $r1,%rax
+ call __poly1305_block # r^3
+
+ mov \$0x3ffffff,%eax # save r^3 base 2^26
+ mov $h0,$d1
+ and $h0#d,%eax
+ shr \$26,$d1
+ mov %eax,`16*0+12-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ and $d1#d,%edx
+ mov %edx,`16*1+12-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*2+12-64`($ctx)
+
+ mov $h1,%rax
+ shl \$12,%rax
+ or $d1,%rax
+ and \$0x3ffffff,%eax
+ mov %eax,`16*3+12-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov $h1,$d1
+ mov %eax,`16*4+12-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ shr \$14,$d1
+ and $d1#d,%edx
+ mov %edx,`16*5+12-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*6+12-64`($ctx)
+
+ mov $h2,%rax
+ shl \$24,%rax
+ or %rax,$d1
+ mov $d1#d,`16*7+12-64`($ctx)
+ lea ($d1,$d1,4),$d1 # *5
+ mov $d1#d,`16*8+12-64`($ctx)
+
+ mov $r1,%rax
+ call __poly1305_block # r^4
+
+ mov \$0x3ffffff,%eax # save r^4 base 2^26
+ mov $h0,$d1
+ and $h0#d,%eax
+ shr \$26,$d1
+ mov %eax,`16*0+8-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ and $d1#d,%edx
+ mov %edx,`16*1+8-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*2+8-64`($ctx)
+
+ mov $h1,%rax
+ shl \$12,%rax
+ or $d1,%rax
+ and \$0x3ffffff,%eax
+ mov %eax,`16*3+8-64`($ctx)
+ lea (%rax,%rax,4),%eax # *5
+ mov $h1,$d1
+ mov %eax,`16*4+8-64`($ctx)
+
+ mov \$0x3ffffff,%edx
+ shr \$14,$d1
+ and $d1#d,%edx
+ mov %edx,`16*5+8-64`($ctx)
+ lea (%rdx,%rdx,4),%edx # *5
+ shr \$26,$d1
+ mov %edx,`16*6+8-64`($ctx)
+
+ mov $h2,%rax
+ shl \$24,%rax
+ or %rax,$d1
+ mov $d1#d,`16*7+8-64`($ctx)
+ lea ($d1,$d1,4),$d1 # *5
+ mov $d1#d,`16*8+8-64`($ctx)
+
+ lea -48-64($ctx),$ctx # size [de-]optimization
+ pop %rbp
+ RET
+.size __poly1305_init_avx,.-__poly1305_init_avx
+___
+
+&declare_function("poly1305_blocks_avx", 32, 4);
+$code.=<<___;
+.cfi_startproc
+ mov 20($ctx),%r8d # is_base2_26
+ cmp \$128,$len
+ jae .Lblocks_avx
+ test %r8d,%r8d
+ jz .Lblocks
+
+.Lblocks_avx:
+ and \$-16,$len
+ jz .Lno_data_avx
+
+ vzeroupper
+
+ test %r8d,%r8d
+ jz .Lbase2_64_avx
+
+ test \$31,$len
+ jz .Leven_avx
+
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lblocks_avx_body:
+
+ mov $len,%r15 # reassign $len
+
+ mov 0($ctx),$d1 # load hash value
+ mov 8($ctx),$d2
+ mov 16($ctx),$h2#d
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ ################################# base 2^26 -> base 2^64
+ mov $d1#d,$h0#d
+ and \$`-1*(1<<31)`,$d1
+ mov $d2,$r1 # borrow $r1
+ mov $d2#d,$h1#d
+ and \$`-1*(1<<31)`,$d2
+
+ shr \$6,$d1
+ shl \$52,$r1
+ add $d1,$h0
+ shr \$12,$h1
+ shr \$18,$d2
+ add $r1,$h0
+ adc $d2,$h1
+
+ mov $h2,$d1
+ shl \$40,$d1
+ shr \$24,$h2
+ add $d1,$h1
+ adc \$0,$h2 # can be partially reduced...
+
+ mov \$-4,$d2 # ... so reduce
+ mov $h2,$d1
+ and $h2,$d2
+ shr \$2,$d1
+ and \$3,$h2
+ add $d2,$d1 # =*5
+ add $d1,$h0
+ adc \$0,$h1
+ adc \$0,$h2
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+
+ call __poly1305_block
+
+ test $padbit,$padbit # if $padbit is zero,
+ jz .Lstore_base2_64_avx # store hash in base 2^64 format
+
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$r0
+ mov $h1,$r1
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$r0
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $r0,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$r1
+ and \$0x3ffffff,$h1 # h[3]
+ or $r1,$h2 # h[4]
+
+ sub \$16,%r15
+ jz .Lstore_base2_26_avx
+
+ vmovd %rax#d,$H0
+ vmovd %rdx#d,$H1
+ vmovd $h0#d,$H2
+ vmovd $h1#d,$H3
+ vmovd $h2#d,$H4
+ jmp .Lproceed_avx
+
+.align 32
+.Lstore_base2_64_avx:
+ mov $h0,0($ctx)
+ mov $h1,8($ctx)
+ mov $h2,16($ctx) # note that is_base2_26 is zeroed
+ jmp .Ldone_avx
+
+.align 16
+.Lstore_base2_26_avx:
+ mov %rax#d,0($ctx) # store hash value base 2^26
+ mov %rdx#d,4($ctx)
+ mov $h0#d,8($ctx)
+ mov $h1#d,12($ctx)
+ mov $h2#d,16($ctx)
+.align 16
+.Ldone_avx:
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lno_data_avx:
+.Lblocks_avx_epilogue:
+ RET
+.cfi_endproc
+
+.align 32
+.Lbase2_64_avx:
+.cfi_startproc
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lbase2_64_avx_body:
+
+ mov $len,%r15 # reassign $len
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ mov 0($ctx),$h0 # load hash value
+ mov 8($ctx),$h1
+ mov 16($ctx),$h2#d
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+ test \$31,$len
+ jz .Linit_avx
+
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+ sub \$16,%r15
+
+ call __poly1305_block
+
+.Linit_avx:
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$d1
+ mov $h1,$d2
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$d1
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $d1,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$d2
+ and \$0x3ffffff,$h1 # h[3]
+ or $d2,$h2 # h[4]
+
+ vmovd %rax#d,$H0
+ vmovd %rdx#d,$H1
+ vmovd $h0#d,$H2
+ vmovd $h1#d,$H3
+ vmovd $h2#d,$H4
+ movl \$1,20($ctx) # set is_base2_26
+
+ call __poly1305_init_avx
+
+.Lproceed_avx:
+ mov %r15,$len
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lbase2_64_avx_epilogue:
+ jmp .Ldo_avx
+.cfi_endproc
+
+.align 32
+.Leven_avx:
+.cfi_startproc
+ vmovd 4*0($ctx),$H0 # load hash value
+ vmovd 4*1($ctx),$H1
+ vmovd 4*2($ctx),$H2
+ vmovd 4*3($ctx),$H3
+ vmovd 4*4($ctx),$H4
+
+.Ldo_avx:
+___
+$code.=<<___ if (!$win64);
+ lea 8(%rsp),%r10
+.cfi_def_cfa_register %r10
+ and \$-32,%rsp
+ sub \$-8,%rsp
+ lea -0x58(%rsp),%r11
+ sub \$0x178,%rsp
+___
+$code.=<<___ if ($win64);
+ lea -0xf8(%rsp),%r11
+ sub \$0x218,%rsp
+ vmovdqa %xmm6,0x50(%r11)
+ vmovdqa %xmm7,0x60(%r11)
+ vmovdqa %xmm8,0x70(%r11)
+ vmovdqa %xmm9,0x80(%r11)
+ vmovdqa %xmm10,0x90(%r11)
+ vmovdqa %xmm11,0xa0(%r11)
+ vmovdqa %xmm12,0xb0(%r11)
+ vmovdqa %xmm13,0xc0(%r11)
+ vmovdqa %xmm14,0xd0(%r11)
+ vmovdqa %xmm15,0xe0(%r11)
+.Ldo_avx_body:
+___
+$code.=<<___;
+ sub \$64,$len
+ lea -32($inp),%rax
+ cmovc %rax,$inp
+
+ vmovdqu `16*3`($ctx),$D4 # preload r0^2
+ lea `16*3+64`($ctx),$ctx # size optimization
+ lea .Lconst(%rip),%rcx
+
+ ################################################################
+ # load input
+ vmovdqu 16*2($inp),$T0
+ vmovdqu 16*3($inp),$T1
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpsrldq \$6,$T1,$T3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpunpcklqdq $T3,$T2,$T3 # 2:3
+
+ vpsrlq \$40,$T4,$T4 # 4
+ vpsrlq \$26,$T0,$T1
+ vpand $MASK,$T0,$T0 # 0
+ vpsrlq \$4,$T3,$T2
+ vpand $MASK,$T1,$T1 # 1
+ vpsrlq \$30,$T3,$T3
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ jbe .Lskip_loop_avx
+
+ # expand and copy pre-calculated table to stack
+ vmovdqu `16*1-64`($ctx),$D1
+ vmovdqu `16*2-64`($ctx),$D2
+ vpshufd \$0xEE,$D4,$D3 # 34xx -> 3434
+ vpshufd \$0x44,$D4,$D0 # xx12 -> 1212
+ vmovdqa $D3,-0x90(%r11)
+ vmovdqa $D0,0x00(%rsp)
+ vpshufd \$0xEE,$D1,$D4
+ vmovdqu `16*3-64`($ctx),$D0
+ vpshufd \$0x44,$D1,$D1
+ vmovdqa $D4,-0x80(%r11)
+ vmovdqa $D1,0x10(%rsp)
+ vpshufd \$0xEE,$D2,$D3
+ vmovdqu `16*4-64`($ctx),$D1
+ vpshufd \$0x44,$D2,$D2
+ vmovdqa $D3,-0x70(%r11)
+ vmovdqa $D2,0x20(%rsp)
+ vpshufd \$0xEE,$D0,$D4
+ vmovdqu `16*5-64`($ctx),$D2
+ vpshufd \$0x44,$D0,$D0
+ vmovdqa $D4,-0x60(%r11)
+ vmovdqa $D0,0x30(%rsp)
+ vpshufd \$0xEE,$D1,$D3
+ vmovdqu `16*6-64`($ctx),$D0
+ vpshufd \$0x44,$D1,$D1
+ vmovdqa $D3,-0x50(%r11)
+ vmovdqa $D1,0x40(%rsp)
+ vpshufd \$0xEE,$D2,$D4
+ vmovdqu `16*7-64`($ctx),$D1
+ vpshufd \$0x44,$D2,$D2
+ vmovdqa $D4,-0x40(%r11)
+ vmovdqa $D2,0x50(%rsp)
+ vpshufd \$0xEE,$D0,$D3
+ vmovdqu `16*8-64`($ctx),$D2
+ vpshufd \$0x44,$D0,$D0
+ vmovdqa $D3,-0x30(%r11)
+ vmovdqa $D0,0x60(%rsp)
+ vpshufd \$0xEE,$D1,$D4
+ vpshufd \$0x44,$D1,$D1
+ vmovdqa $D4,-0x20(%r11)
+ vmovdqa $D1,0x70(%rsp)
+ vpshufd \$0xEE,$D2,$D3
+ vmovdqa 0x00(%rsp),$D4 # preload r0^2
+ vpshufd \$0x44,$D2,$D2
+ vmovdqa $D3,-0x10(%r11)
+ vmovdqa $D2,0x80(%rsp)
+
+ jmp .Loop_avx
+
+.align 32
+.Loop_avx:
+ ################################################################
+ # ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2
+ # ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^3+inp[7]*r
+ # \___________________/
+ # ((inp[0]*r^4+inp[2]*r^2+inp[4])*r^4+inp[6]*r^2+inp[8])*r^2
+ # ((inp[1]*r^4+inp[3]*r^2+inp[5])*r^4+inp[7]*r^2+inp[9])*r
+ # \___________________/ \____________________/
+ #
+ # Note that we start with inp[2:3]*r^2. This is because it
+ # doesn't depend on reduction in previous iteration.
+ ################################################################
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ #
+ # though note that $Tx and $Hx are "reversed" in this section,
+ # and $D4 is preloaded with r0^2...
+
+ vpmuludq $T0,$D4,$D0 # d0 = h0*r0
+ vpmuludq $T1,$D4,$D1 # d1 = h1*r0
+ vmovdqa $H2,0x20(%r11) # offload hash
+ vpmuludq $T2,$D4,$D2 # d3 = h2*r0
+ vmovdqa 0x10(%rsp),$H2 # r1^2
+ vpmuludq $T3,$D4,$D3 # d3 = h3*r0
+ vpmuludq $T4,$D4,$D4 # d4 = h4*r0
+
+ vmovdqa $H0,0x00(%r11) #
+ vpmuludq 0x20(%rsp),$T4,$H0 # h4*s1
+ vmovdqa $H1,0x10(%r11) #
+ vpmuludq $T3,$H2,$H1 # h3*r1
+ vpaddq $H0,$D0,$D0 # d0 += h4*s1
+ vpaddq $H1,$D4,$D4 # d4 += h3*r1
+ vmovdqa $H3,0x30(%r11) #
+ vpmuludq $T2,$H2,$H0 # h2*r1
+ vpmuludq $T1,$H2,$H1 # h1*r1
+ vpaddq $H0,$D3,$D3 # d3 += h2*r1
+ vmovdqa 0x30(%rsp),$H3 # r2^2
+ vpaddq $H1,$D2,$D2 # d2 += h1*r1
+ vmovdqa $H4,0x40(%r11) #
+ vpmuludq $T0,$H2,$H2 # h0*r1
+ vpmuludq $T2,$H3,$H0 # h2*r2
+ vpaddq $H2,$D1,$D1 # d1 += h0*r1
+
+ vmovdqa 0x40(%rsp),$H4 # s2^2
+ vpaddq $H0,$D4,$D4 # d4 += h2*r2
+ vpmuludq $T1,$H3,$H1 # h1*r2
+ vpmuludq $T0,$H3,$H3 # h0*r2
+ vpaddq $H1,$D3,$D3 # d3 += h1*r2
+ vmovdqa 0x50(%rsp),$H2 # r3^2
+ vpaddq $H3,$D2,$D2 # d2 += h0*r2
+ vpmuludq $T4,$H4,$H0 # h4*s2
+ vpmuludq $T3,$H4,$H4 # h3*s2
+ vpaddq $H0,$D1,$D1 # d1 += h4*s2
+ vmovdqa 0x60(%rsp),$H3 # s3^2
+ vpaddq $H4,$D0,$D0 # d0 += h3*s2
+
+ vmovdqa 0x80(%rsp),$H4 # s4^2
+ vpmuludq $T1,$H2,$H1 # h1*r3
+ vpmuludq $T0,$H2,$H2 # h0*r3
+ vpaddq $H1,$D4,$D4 # d4 += h1*r3
+ vpaddq $H2,$D3,$D3 # d3 += h0*r3
+ vpmuludq $T4,$H3,$H0 # h4*s3
+ vpmuludq $T3,$H3,$H1 # h3*s3
+ vpaddq $H0,$D2,$D2 # d2 += h4*s3
+ vmovdqu 16*0($inp),$H0 # load input
+ vpaddq $H1,$D1,$D1 # d1 += h3*s3
+ vpmuludq $T2,$H3,$H3 # h2*s3
+ vpmuludq $T2,$H4,$T2 # h2*s4
+ vpaddq $H3,$D0,$D0 # d0 += h2*s3
+
+ vmovdqu 16*1($inp),$H1 #
+ vpaddq $T2,$D1,$D1 # d1 += h2*s4
+ vpmuludq $T3,$H4,$T3 # h3*s4
+ vpmuludq $T4,$H4,$T4 # h4*s4
+ vpsrldq \$6,$H0,$H2 # splat input
+ vpaddq $T3,$D2,$D2 # d2 += h3*s4
+ vpaddq $T4,$D3,$D3 # d3 += h4*s4
+ vpsrldq \$6,$H1,$H3 #
+ vpmuludq 0x70(%rsp),$T0,$T4 # h0*r4
+ vpmuludq $T1,$H4,$T0 # h1*s4
+ vpunpckhqdq $H1,$H0,$H4 # 4
+ vpaddq $T4,$D4,$D4 # d4 += h0*r4
+ vmovdqa -0x90(%r11),$T4 # r0^4
+ vpaddq $T0,$D0,$D0 # d0 += h1*s4
+
+ vpunpcklqdq $H1,$H0,$H0 # 0:1
+ vpunpcklqdq $H3,$H2,$H3 # 2:3
+
+ #vpsrlq \$40,$H4,$H4 # 4
+ vpsrldq \$`40/8`,$H4,$H4 # 4
+ vpsrlq \$26,$H0,$H1
+ vpand $MASK,$H0,$H0 # 0
+ vpsrlq \$4,$H3,$H2
+ vpand $MASK,$H1,$H1 # 1
+ vpand 0(%rcx),$H4,$H4 # .Lmask24
+ vpsrlq \$30,$H3,$H3
+ vpand $MASK,$H2,$H2 # 2
+ vpand $MASK,$H3,$H3 # 3
+ vpor 32(%rcx),$H4,$H4 # padbit, yes, always
+
+ vpaddq 0x00(%r11),$H0,$H0 # add hash value
+ vpaddq 0x10(%r11),$H1,$H1
+ vpaddq 0x20(%r11),$H2,$H2
+ vpaddq 0x30(%r11),$H3,$H3
+ vpaddq 0x40(%r11),$H4,$H4
+
+ lea 16*2($inp),%rax
+ lea 16*4($inp),$inp
+ sub \$64,$len
+ cmovc %rax,$inp
+
+ ################################################################
+ # Now we accumulate (inp[0:1]+hash)*r^4
+ ################################################################
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+
+ vpmuludq $H0,$T4,$T0 # h0*r0
+ vpmuludq $H1,$T4,$T1 # h1*r0
+ vpaddq $T0,$D0,$D0
+ vpaddq $T1,$D1,$D1
+ vmovdqa -0x80(%r11),$T2 # r1^4
+ vpmuludq $H2,$T4,$T0 # h2*r0
+ vpmuludq $H3,$T4,$T1 # h3*r0
+ vpaddq $T0,$D2,$D2
+ vpaddq $T1,$D3,$D3
+ vpmuludq $H4,$T4,$T4 # h4*r0
+ vpmuludq -0x70(%r11),$H4,$T0 # h4*s1
+ vpaddq $T4,$D4,$D4
+
+ vpaddq $T0,$D0,$D0 # d0 += h4*s1
+ vpmuludq $H2,$T2,$T1 # h2*r1
+ vpmuludq $H3,$T2,$T0 # h3*r1
+ vpaddq $T1,$D3,$D3 # d3 += h2*r1
+ vmovdqa -0x60(%r11),$T3 # r2^4
+ vpaddq $T0,$D4,$D4 # d4 += h3*r1
+ vpmuludq $H1,$T2,$T1 # h1*r1
+ vpmuludq $H0,$T2,$T2 # h0*r1
+ vpaddq $T1,$D2,$D2 # d2 += h1*r1
+ vpaddq $T2,$D1,$D1 # d1 += h0*r1
+
+ vmovdqa -0x50(%r11),$T4 # s2^4
+ vpmuludq $H2,$T3,$T0 # h2*r2
+ vpmuludq $H1,$T3,$T1 # h1*r2
+ vpaddq $T0,$D4,$D4 # d4 += h2*r2
+ vpaddq $T1,$D3,$D3 # d3 += h1*r2
+ vmovdqa -0x40(%r11),$T2 # r3^4
+ vpmuludq $H0,$T3,$T3 # h0*r2
+ vpmuludq $H4,$T4,$T0 # h4*s2
+ vpaddq $T3,$D2,$D2 # d2 += h0*r2
+ vpaddq $T0,$D1,$D1 # d1 += h4*s2
+ vmovdqa -0x30(%r11),$T3 # s3^4
+ vpmuludq $H3,$T4,$T4 # h3*s2
+ vpmuludq $H1,$T2,$T1 # h1*r3
+ vpaddq $T4,$D0,$D0 # d0 += h3*s2
+
+ vmovdqa -0x10(%r11),$T4 # s4^4
+ vpaddq $T1,$D4,$D4 # d4 += h1*r3
+ vpmuludq $H0,$T2,$T2 # h0*r3
+ vpmuludq $H4,$T3,$T0 # h4*s3
+ vpaddq $T2,$D3,$D3 # d3 += h0*r3
+ vpaddq $T0,$D2,$D2 # d2 += h4*s3
+ vmovdqu 16*2($inp),$T0 # load input
+ vpmuludq $H3,$T3,$T2 # h3*s3
+ vpmuludq $H2,$T3,$T3 # h2*s3
+ vpaddq $T2,$D1,$D1 # d1 += h3*s3
+ vmovdqu 16*3($inp),$T1 #
+ vpaddq $T3,$D0,$D0 # d0 += h2*s3
+
+ vpmuludq $H2,$T4,$H2 # h2*s4
+ vpmuludq $H3,$T4,$H3 # h3*s4
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpaddq $H2,$D1,$D1 # d1 += h2*s4
+ vpmuludq $H4,$T4,$H4 # h4*s4
+ vpsrldq \$6,$T1,$T3 #
+ vpaddq $H3,$D2,$H2 # h2 = d2 + h3*s4
+ vpaddq $H4,$D3,$H3 # h3 = d3 + h4*s4
+ vpmuludq -0x20(%r11),$H0,$H4 # h0*r4
+ vpmuludq $H1,$T4,$H0
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpaddq $H4,$D4,$H4 # h4 = d4 + h0*r4
+ vpaddq $H0,$D0,$H0 # h0 = d0 + h1*s4
+
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpunpcklqdq $T3,$T2,$T3 # 2:3
+
+ #vpsrlq \$40,$T4,$T4 # 4
+ vpsrldq \$`40/8`,$T4,$T4 # 4
+ vpsrlq \$26,$T0,$T1
+ vmovdqa 0x00(%rsp),$D4 # preload r0^2
+ vpand $MASK,$T0,$T0 # 0
+ vpsrlq \$4,$T3,$T2
+ vpand $MASK,$T1,$T1 # 1
+ vpand 0(%rcx),$T4,$T4 # .Lmask24
+ vpsrlq \$30,$T3,$T3
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ ################################################################
+ # lazy reduction as discussed in "NEON crypto" by D.J. Bernstein
+ # and P. Schwabe
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$D1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D0
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D0,$H0,$H0
+ vpsllq \$2,$D0,$D0
+ vpaddq $D0,$H0,$H0 # h4 -> h0
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ ja .Loop_avx
+
+.Lskip_loop_avx:
+ ################################################################
+ # multiply (inp[0:1]+hash) or inp[2:3] by r^2:r^1
+
+ vpshufd \$0x10,$D4,$D4 # r0^n, xx12 -> x1x2
+ add \$32,$len
+ jnz .Long_tail_avx
+
+ vpaddq $H2,$T2,$T2
+ vpaddq $H0,$T0,$T0
+ vpaddq $H1,$T1,$T1
+ vpaddq $H3,$T3,$T3
+ vpaddq $H4,$T4,$T4
+
+.Long_tail_avx:
+ vmovdqa $H2,0x20(%r11)
+ vmovdqa $H0,0x00(%r11)
+ vmovdqa $H1,0x10(%r11)
+ vmovdqa $H3,0x30(%r11)
+ vmovdqa $H4,0x40(%r11)
+
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+
+ vpmuludq $T2,$D4,$D2 # d2 = h2*r0
+ vpmuludq $T0,$D4,$D0 # d0 = h0*r0
+ vpshufd \$0x10,`16*1-64`($ctx),$H2 # r1^n
+ vpmuludq $T1,$D4,$D1 # d1 = h1*r0
+ vpmuludq $T3,$D4,$D3 # d3 = h3*r0
+ vpmuludq $T4,$D4,$D4 # d4 = h4*r0
+
+ vpmuludq $T3,$H2,$H0 # h3*r1
+ vpaddq $H0,$D4,$D4 # d4 += h3*r1
+ vpshufd \$0x10,`16*2-64`($ctx),$H3 # s1^n
+ vpmuludq $T2,$H2,$H1 # h2*r1
+ vpaddq $H1,$D3,$D3 # d3 += h2*r1
+ vpshufd \$0x10,`16*3-64`($ctx),$H4 # r2^n
+ vpmuludq $T1,$H2,$H0 # h1*r1
+ vpaddq $H0,$D2,$D2 # d2 += h1*r1
+ vpmuludq $T0,$H2,$H2 # h0*r1
+ vpaddq $H2,$D1,$D1 # d1 += h0*r1
+ vpmuludq $T4,$H3,$H3 # h4*s1
+ vpaddq $H3,$D0,$D0 # d0 += h4*s1
+
+ vpshufd \$0x10,`16*4-64`($ctx),$H2 # s2^n
+ vpmuludq $T2,$H4,$H1 # h2*r2
+ vpaddq $H1,$D4,$D4 # d4 += h2*r2
+ vpmuludq $T1,$H4,$H0 # h1*r2
+ vpaddq $H0,$D3,$D3 # d3 += h1*r2
+ vpshufd \$0x10,`16*5-64`($ctx),$H3 # r3^n
+ vpmuludq $T0,$H4,$H4 # h0*r2
+ vpaddq $H4,$D2,$D2 # d2 += h0*r2
+ vpmuludq $T4,$H2,$H1 # h4*s2
+ vpaddq $H1,$D1,$D1 # d1 += h4*s2
+ vpshufd \$0x10,`16*6-64`($ctx),$H4 # s3^n
+ vpmuludq $T3,$H2,$H2 # h3*s2
+ vpaddq $H2,$D0,$D0 # d0 += h3*s2
+
+ vpmuludq $T1,$H3,$H0 # h1*r3
+ vpaddq $H0,$D4,$D4 # d4 += h1*r3
+ vpmuludq $T0,$H3,$H3 # h0*r3
+ vpaddq $H3,$D3,$D3 # d3 += h0*r3
+ vpshufd \$0x10,`16*7-64`($ctx),$H2 # r4^n
+ vpmuludq $T4,$H4,$H1 # h4*s3
+ vpaddq $H1,$D2,$D2 # d2 += h4*s3
+ vpshufd \$0x10,`16*8-64`($ctx),$H3 # s4^n
+ vpmuludq $T3,$H4,$H0 # h3*s3
+ vpaddq $H0,$D1,$D1 # d1 += h3*s3
+ vpmuludq $T2,$H4,$H4 # h2*s3
+ vpaddq $H4,$D0,$D0 # d0 += h2*s3
+
+ vpmuludq $T0,$H2,$H2 # h0*r4
+ vpaddq $H2,$D4,$D4 # h4 = d4 + h0*r4
+ vpmuludq $T4,$H3,$H1 # h4*s4
+ vpaddq $H1,$D3,$D3 # h3 = d3 + h4*s4
+ vpmuludq $T3,$H3,$H0 # h3*s4
+ vpaddq $H0,$D2,$D2 # h2 = d2 + h3*s4
+ vpmuludq $T2,$H3,$H1 # h2*s4
+ vpaddq $H1,$D1,$D1 # h1 = d1 + h2*s4
+ vpmuludq $T1,$H3,$H3 # h1*s4
+ vpaddq $H3,$D0,$D0 # h0 = d0 + h1*s4
+
+ jz .Lshort_tail_avx
+
+ vmovdqu 16*0($inp),$H0 # load input
+ vmovdqu 16*1($inp),$H1
+
+ vpsrldq \$6,$H0,$H2 # splat input
+ vpsrldq \$6,$H1,$H3
+ vpunpckhqdq $H1,$H0,$H4 # 4
+ vpunpcklqdq $H1,$H0,$H0 # 0:1
+ vpunpcklqdq $H3,$H2,$H3 # 2:3
+
+ vpsrlq \$40,$H4,$H4 # 4
+ vpsrlq \$26,$H0,$H1
+ vpand $MASK,$H0,$H0 # 0
+ vpsrlq \$4,$H3,$H2
+ vpand $MASK,$H1,$H1 # 1
+ vpsrlq \$30,$H3,$H3
+ vpand $MASK,$H2,$H2 # 2
+ vpand $MASK,$H3,$H3 # 3
+ vpor 32(%rcx),$H4,$H4 # padbit, yes, always
+
+ vpshufd \$0x32,`16*0-64`($ctx),$T4 # r0^n, 34xx -> x3x4
+ vpaddq 0x00(%r11),$H0,$H0
+ vpaddq 0x10(%r11),$H1,$H1
+ vpaddq 0x20(%r11),$H2,$H2
+ vpaddq 0x30(%r11),$H3,$H3
+ vpaddq 0x40(%r11),$H4,$H4
+
+ ################################################################
+ # multiply (inp[0:1]+hash) by r^4:r^3 and accumulate
+
+ vpmuludq $H0,$T4,$T0 # h0*r0
+ vpaddq $T0,$D0,$D0 # d0 += h0*r0
+ vpmuludq $H1,$T4,$T1 # h1*r0
+ vpaddq $T1,$D1,$D1 # d1 += h1*r0
+ vpmuludq $H2,$T4,$T0 # h2*r0
+ vpaddq $T0,$D2,$D2 # d2 += h2*r0
+ vpshufd \$0x32,`16*1-64`($ctx),$T2 # r1^n
+ vpmuludq $H3,$T4,$T1 # h3*r0
+ vpaddq $T1,$D3,$D3 # d3 += h3*r0
+ vpmuludq $H4,$T4,$T4 # h4*r0
+ vpaddq $T4,$D4,$D4 # d4 += h4*r0
+
+ vpmuludq $H3,$T2,$T0 # h3*r1
+ vpaddq $T0,$D4,$D4 # d4 += h3*r1
+ vpshufd \$0x32,`16*2-64`($ctx),$T3 # s1
+ vpmuludq $H2,$T2,$T1 # h2*r1
+ vpaddq $T1,$D3,$D3 # d3 += h2*r1
+ vpshufd \$0x32,`16*3-64`($ctx),$T4 # r2
+ vpmuludq $H1,$T2,$T0 # h1*r1
+ vpaddq $T0,$D2,$D2 # d2 += h1*r1
+ vpmuludq $H0,$T2,$T2 # h0*r1
+ vpaddq $T2,$D1,$D1 # d1 += h0*r1
+ vpmuludq $H4,$T3,$T3 # h4*s1
+ vpaddq $T3,$D0,$D0 # d0 += h4*s1
+
+ vpshufd \$0x32,`16*4-64`($ctx),$T2 # s2
+ vpmuludq $H2,$T4,$T1 # h2*r2
+ vpaddq $T1,$D4,$D4 # d4 += h2*r2
+ vpmuludq $H1,$T4,$T0 # h1*r2
+ vpaddq $T0,$D3,$D3 # d3 += h1*r2
+ vpshufd \$0x32,`16*5-64`($ctx),$T3 # r3
+ vpmuludq $H0,$T4,$T4 # h0*r2
+ vpaddq $T4,$D2,$D2 # d2 += h0*r2
+ vpmuludq $H4,$T2,$T1 # h4*s2
+ vpaddq $T1,$D1,$D1 # d1 += h4*s2
+ vpshufd \$0x32,`16*6-64`($ctx),$T4 # s3
+ vpmuludq $H3,$T2,$T2 # h3*s2
+ vpaddq $T2,$D0,$D0 # d0 += h3*s2
+
+ vpmuludq $H1,$T3,$T0 # h1*r3
+ vpaddq $T0,$D4,$D4 # d4 += h1*r3
+ vpmuludq $H0,$T3,$T3 # h0*r3
+ vpaddq $T3,$D3,$D3 # d3 += h0*r3
+ vpshufd \$0x32,`16*7-64`($ctx),$T2 # r4
+ vpmuludq $H4,$T4,$T1 # h4*s3
+ vpaddq $T1,$D2,$D2 # d2 += h4*s3
+ vpshufd \$0x32,`16*8-64`($ctx),$T3 # s4
+ vpmuludq $H3,$T4,$T0 # h3*s3
+ vpaddq $T0,$D1,$D1 # d1 += h3*s3
+ vpmuludq $H2,$T4,$T4 # h2*s3
+ vpaddq $T4,$D0,$D0 # d0 += h2*s3
+
+ vpmuludq $H0,$T2,$T2 # h0*r4
+ vpaddq $T2,$D4,$D4 # d4 += h0*r4
+ vpmuludq $H4,$T3,$T1 # h4*s4
+ vpaddq $T1,$D3,$D3 # d3 += h4*s4
+ vpmuludq $H3,$T3,$T0 # h3*s4
+ vpaddq $T0,$D2,$D2 # d2 += h3*s4
+ vpmuludq $H2,$T3,$T1 # h2*s4
+ vpaddq $T1,$D1,$D1 # d1 += h2*s4
+ vpmuludq $H1,$T3,$T3 # h1*s4
+ vpaddq $T3,$D0,$D0 # d0 += h1*s4
+
+.Lshort_tail_avx:
+ ################################################################
+ # horizontal addition
+
+ vpsrldq \$8,$D4,$T4
+ vpsrldq \$8,$D3,$T3
+ vpsrldq \$8,$D1,$T1
+ vpsrldq \$8,$D0,$T0
+ vpsrldq \$8,$D2,$T2
+ vpaddq $T3,$D3,$D3
+ vpaddq $T4,$D4,$D4
+ vpaddq $T0,$D0,$D0
+ vpaddq $T1,$D1,$D1
+ vpaddq $T2,$D2,$D2
+
+ ################################################################
+ # lazy reduction
+
+ vpsrlq \$26,$D3,$H3
+ vpand $MASK,$D3,$D3
+ vpaddq $H3,$D4,$D4 # h3 -> h4
+
+ vpsrlq \$26,$D0,$H0
+ vpand $MASK,$D0,$D0
+ vpaddq $H0,$D1,$D1 # h0 -> h1
+
+ vpsrlq \$26,$D4,$H4
+ vpand $MASK,$D4,$D4
+
+ vpsrlq \$26,$D1,$H1
+ vpand $MASK,$D1,$D1
+ vpaddq $H1,$D2,$D2 # h1 -> h2
+
+ vpaddq $H4,$D0,$D0
+ vpsllq \$2,$H4,$H4
+ vpaddq $H4,$D0,$D0 # h4 -> h0
+
+ vpsrlq \$26,$D2,$H2
+ vpand $MASK,$D2,$D2
+ vpaddq $H2,$D3,$D3 # h2 -> h3
+
+ vpsrlq \$26,$D0,$H0
+ vpand $MASK,$D0,$D0
+ vpaddq $H0,$D1,$D1 # h0 -> h1
+
+ vpsrlq \$26,$D3,$H3
+ vpand $MASK,$D3,$D3
+ vpaddq $H3,$D4,$D4 # h3 -> h4
+
+ vmovd $D0,`4*0-48-64`($ctx) # save partially reduced
+ vmovd $D1,`4*1-48-64`($ctx)
+ vmovd $D2,`4*2-48-64`($ctx)
+ vmovd $D3,`4*3-48-64`($ctx)
+ vmovd $D4,`4*4-48-64`($ctx)
+___
+$code.=<<___ if ($win64);
+ vmovdqa 0x50(%r11),%xmm6
+ vmovdqa 0x60(%r11),%xmm7
+ vmovdqa 0x70(%r11),%xmm8
+ vmovdqa 0x80(%r11),%xmm9
+ vmovdqa 0x90(%r11),%xmm10
+ vmovdqa 0xa0(%r11),%xmm11
+ vmovdqa 0xb0(%r11),%xmm12
+ vmovdqa 0xc0(%r11),%xmm13
+ vmovdqa 0xd0(%r11),%xmm14
+ vmovdqa 0xe0(%r11),%xmm15
+ lea 0xf8(%r11),%rsp
+.Ldo_avx_epilogue:
+___
+$code.=<<___ if (!$win64);
+ lea -8(%r10),%rsp
+.cfi_def_cfa_register %rsp
+___
+$code.=<<___;
+ vzeroupper
+ RET
+.cfi_endproc
+___
+&end_function("poly1305_blocks_avx");
+
+&declare_function("poly1305_emit_avx", 32, 3);
+$code.=<<___;
+ cmpl \$0,20($ctx) # is_base2_26?
+ je .Lemit
+
+ mov 0($ctx),%eax # load hash value base 2^26
+ mov 4($ctx),%ecx
+ mov 8($ctx),%r8d
+ mov 12($ctx),%r11d
+ mov 16($ctx),%r10d
+
+ shl \$26,%rcx # base 2^26 -> base 2^64
+ mov %r8,%r9
+ shl \$52,%r8
+ add %rcx,%rax
+ shr \$12,%r9
+ add %rax,%r8 # h0
+ adc \$0,%r9
+
+ shl \$14,%r11
+ mov %r10,%rax
+ shr \$24,%r10
+ add %r11,%r9
+ shl \$40,%rax
+ add %rax,%r9 # h1
+ adc \$0,%r10 # h2
+
+ mov %r10,%rax # could be partially reduced, so reduce
+ mov %r10,%rcx
+ and \$3,%r10
+ shr \$2,%rax
+ and \$-4,%rcx
+ add %rcx,%rax
+ add %rax,%r8
+ adc \$0,%r9
+ adc \$0,%r10
+
+ mov %r8,%rax
+ add \$5,%r8 # compare to modulus
+ mov %r9,%rcx
+ adc \$0,%r9
+ adc \$0,%r10
+ shr \$2,%r10 # did 130-bit value overflow?
+ cmovnz %r8,%rax
+ cmovnz %r9,%rcx
+
+ add 0($nonce),%rax # accumulate nonce
+ adc 8($nonce),%rcx
+ mov %rax,0($mac) # write result
+ mov %rcx,8($mac)
+
+ RET
+___
+&end_function("poly1305_emit_avx");
+
+if ($avx>1) {
+
+my ($H0,$H1,$H2,$H3,$H4, $MASK, $T4,$T0,$T1,$T2,$T3, $D0,$D1,$D2,$D3,$D4) =
+ map("%ymm$_",(0..15));
+my $S4=$MASK;
+
+sub poly1305_blocks_avxN {
+ my ($avx512) = @_;
+ my $suffix = $avx512 ? "_avx512" : "";
+$code.=<<___;
+.cfi_startproc
+ mov 20($ctx),%r8d # is_base2_26
+ cmp \$128,$len
+ jae .Lblocks_avx2$suffix
+ test %r8d,%r8d
+ jz .Lblocks
+
+.Lblocks_avx2$suffix:
+ and \$-16,$len
+ jz .Lno_data_avx2$suffix
+
+ vzeroupper
+
+ test %r8d,%r8d
+ jz .Lbase2_64_avx2$suffix
+
+ test \$63,$len
+ jz .Leven_avx2$suffix
+
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lblocks_avx2_body$suffix:
+
+ mov $len,%r15 # reassign $len
+
+ mov 0($ctx),$d1 # load hash value
+ mov 8($ctx),$d2
+ mov 16($ctx),$h2#d
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ ################################# base 2^26 -> base 2^64
+ mov $d1#d,$h0#d
+ and \$`-1*(1<<31)`,$d1
+ mov $d2,$r1 # borrow $r1
+ mov $d2#d,$h1#d
+ and \$`-1*(1<<31)`,$d2
+
+ shr \$6,$d1
+ shl \$52,$r1
+ add $d1,$h0
+ shr \$12,$h1
+ shr \$18,$d2
+ add $r1,$h0
+ adc $d2,$h1
+
+ mov $h2,$d1
+ shl \$40,$d1
+ shr \$24,$h2
+ add $d1,$h1
+ adc \$0,$h2 # can be partially reduced...
+
+ mov \$-4,$d2 # ... so reduce
+ mov $h2,$d1
+ and $h2,$d2
+ shr \$2,$d1
+ and \$3,$h2
+ add $d2,$d1 # =*5
+ add $d1,$h0
+ adc \$0,$h1
+ adc \$0,$h2
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+.Lbase2_26_pre_avx2$suffix:
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+ sub \$16,%r15
+
+ call __poly1305_block
+ mov $r1,%rax
+
+ test \$63,%r15
+ jnz .Lbase2_26_pre_avx2$suffix
+
+ test $padbit,$padbit # if $padbit is zero,
+ jz .Lstore_base2_64_avx2$suffix # store hash in base 2^64 format
+
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$r0
+ mov $h1,$r1
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$r0
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $r0,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$r1
+ and \$0x3ffffff,$h1 # h[3]
+ or $r1,$h2 # h[4]
+
+ test %r15,%r15
+ jz .Lstore_base2_26_avx2$suffix
+
+ vmovd %rax#d,%x#$H0
+ vmovd %rdx#d,%x#$H1
+ vmovd $h0#d,%x#$H2
+ vmovd $h1#d,%x#$H3
+ vmovd $h2#d,%x#$H4
+ jmp .Lproceed_avx2$suffix
+
+.align 32
+.Lstore_base2_64_avx2$suffix:
+ mov $h0,0($ctx)
+ mov $h1,8($ctx)
+ mov $h2,16($ctx) # note that is_base2_26 is zeroed
+ jmp .Ldone_avx2$suffix
+
+.align 16
+.Lstore_base2_26_avx2$suffix:
+ mov %rax#d,0($ctx) # store hash value base 2^26
+ mov %rdx#d,4($ctx)
+ mov $h0#d,8($ctx)
+ mov $h1#d,12($ctx)
+ mov $h2#d,16($ctx)
+.align 16
+.Ldone_avx2$suffix:
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lno_data_avx2$suffix:
+.Lblocks_avx2_epilogue$suffix:
+ RET
+.cfi_endproc
+
+.align 32
+.Lbase2_64_avx2$suffix:
+.cfi_startproc
+ push %rbp
+.cfi_push %rbp
+ mov %rsp,%rbp
+ push %rbx
+.cfi_push %rbx
+ push %r12
+.cfi_push %r12
+ push %r13
+.cfi_push %r13
+ push %r14
+.cfi_push %r14
+ push %r15
+.cfi_push %r15
+.Lbase2_64_avx2_body$suffix:
+
+ mov $len,%r15 # reassign $len
+
+ mov 24($ctx),$r0 # load r
+ mov 32($ctx),$s1
+
+ mov 0($ctx),$h0 # load hash value
+ mov 8($ctx),$h1
+ mov 16($ctx),$h2#d
+
+ mov $s1,$r1
+ mov $s1,%rax
+ shr \$2,$s1
+ add $r1,$s1 # s1 = r1 + (r1 >> 2)
+
+ test \$63,$len
+ jz .Linit_avx2$suffix
+
+.Lbase2_64_pre_avx2$suffix:
+ add 0($inp),$h0 # accumulate input
+ adc 8($inp),$h1
+ lea 16($inp),$inp
+ adc $padbit,$h2
+ sub \$16,%r15
+
+ call __poly1305_block
+ mov $r1,%rax
+
+ test \$63,%r15
+ jnz .Lbase2_64_pre_avx2$suffix
+
+.Linit_avx2$suffix:
+ ################################# base 2^64 -> base 2^26
+ mov $h0,%rax
+ mov $h0,%rdx
+ shr \$52,$h0
+ mov $h1,$d1
+ mov $h1,$d2
+ shr \$26,%rdx
+ and \$0x3ffffff,%rax # h[0]
+ shl \$12,$d1
+ and \$0x3ffffff,%rdx # h[1]
+ shr \$14,$h1
+ or $d1,$h0
+ shl \$24,$h2
+ and \$0x3ffffff,$h0 # h[2]
+ shr \$40,$d2
+ and \$0x3ffffff,$h1 # h[3]
+ or $d2,$h2 # h[4]
+
+ vmovd %rax#d,%x#$H0
+ vmovd %rdx#d,%x#$H1
+ vmovd $h0#d,%x#$H2
+ vmovd $h1#d,%x#$H3
+ vmovd $h2#d,%x#$H4
+ movl \$1,20($ctx) # set is_base2_26
+
+ call __poly1305_init_avx
+
+.Lproceed_avx2$suffix:
+ mov %r15,$len # restore $len
+___
+$code.=<<___ if (!$kernel);
+ mov OPENSSL_ia32cap_P+8(%rip),%r9d
+ mov \$`(1<<31|1<<30|1<<16)`,%r11d
+___
+$code.=<<___;
+ pop %r15
+.cfi_restore %r15
+ pop %r14
+.cfi_restore %r14
+ pop %r13
+.cfi_restore %r13
+ pop %r12
+.cfi_restore %r12
+ pop %rbx
+.cfi_restore %rbx
+ pop %rbp
+.cfi_restore %rbp
+.Lbase2_64_avx2_epilogue$suffix:
+ jmp .Ldo_avx2$suffix
+.cfi_endproc
+
+.align 32
+.Leven_avx2$suffix:
+.cfi_startproc
+___
+$code.=<<___ if (!$kernel);
+ mov OPENSSL_ia32cap_P+8(%rip),%r9d
+___
+$code.=<<___;
+ vmovd 4*0($ctx),%x#$H0 # load hash value base 2^26
+ vmovd 4*1($ctx),%x#$H1
+ vmovd 4*2($ctx),%x#$H2
+ vmovd 4*3($ctx),%x#$H3
+ vmovd 4*4($ctx),%x#$H4
+
+.Ldo_avx2$suffix:
+___
+$code.=<<___ if (!$kernel && $avx>2);
+ cmp \$512,$len
+ jb .Lskip_avx512
+ and %r11d,%r9d
+ test \$`1<<16`,%r9d # check for AVX512F
+ jnz .Lblocks_avx512
+.Lskip_avx512$suffix:
+___
+$code.=<<___ if ($avx > 2 && $avx512 && $kernel);
+ cmp \$512,$len
+ jae .Lblocks_avx512
+___
+$code.=<<___ if (!$win64);
+ lea 8(%rsp),%r10
+.cfi_def_cfa_register %r10
+ sub \$0x128,%rsp
+___
+$code.=<<___ if ($win64);
+ lea 8(%rsp),%r10
+ sub \$0x1c8,%rsp
+ vmovdqa %xmm6,-0xb0(%r10)
+ vmovdqa %xmm7,-0xa0(%r10)
+ vmovdqa %xmm8,-0x90(%r10)
+ vmovdqa %xmm9,-0x80(%r10)
+ vmovdqa %xmm10,-0x70(%r10)
+ vmovdqa %xmm11,-0x60(%r10)
+ vmovdqa %xmm12,-0x50(%r10)
+ vmovdqa %xmm13,-0x40(%r10)
+ vmovdqa %xmm14,-0x30(%r10)
+ vmovdqa %xmm15,-0x20(%r10)
+.Ldo_avx2_body$suffix:
+___
+$code.=<<___;
+ lea .Lconst(%rip),%rcx
+ lea 48+64($ctx),$ctx # size optimization
+ vmovdqa 96(%rcx),$T0 # .Lpermd_avx2
+
+ # expand and copy pre-calculated table to stack
+ vmovdqu `16*0-64`($ctx),%x#$T2
+ and \$-512,%rsp
+ vmovdqu `16*1-64`($ctx),%x#$T3
+ vmovdqu `16*2-64`($ctx),%x#$T4
+ vmovdqu `16*3-64`($ctx),%x#$D0
+ vmovdqu `16*4-64`($ctx),%x#$D1
+ vmovdqu `16*5-64`($ctx),%x#$D2
+ lea 0x90(%rsp),%rax # size optimization
+ vmovdqu `16*6-64`($ctx),%x#$D3
+ vpermd $T2,$T0,$T2 # 00003412 -> 14243444
+ vmovdqu `16*7-64`($ctx),%x#$D4
+ vpermd $T3,$T0,$T3
+ vmovdqu `16*8-64`($ctx),%x#$MASK
+ vpermd $T4,$T0,$T4
+ vmovdqa $T2,0x00(%rsp)
+ vpermd $D0,$T0,$D0
+ vmovdqa $T3,0x20-0x90(%rax)
+ vpermd $D1,$T0,$D1
+ vmovdqa $T4,0x40-0x90(%rax)
+ vpermd $D2,$T0,$D2
+ vmovdqa $D0,0x60-0x90(%rax)
+ vpermd $D3,$T0,$D3
+ vmovdqa $D1,0x80-0x90(%rax)
+ vpermd $D4,$T0,$D4
+ vmovdqa $D2,0xa0-0x90(%rax)
+ vpermd $MASK,$T0,$MASK
+ vmovdqa $D3,0xc0-0x90(%rax)
+ vmovdqa $D4,0xe0-0x90(%rax)
+ vmovdqa $MASK,0x100-0x90(%rax)
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+
+ ################################################################
+ # load input
+ vmovdqu 16*0($inp),%x#$T0
+ vmovdqu 16*1($inp),%x#$T1
+ vinserti128 \$1,16*2($inp),$T0,$T0
+ vinserti128 \$1,16*3($inp),$T1,$T1
+ lea 16*4($inp),$inp
+
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpsrldq \$6,$T1,$T3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpunpcklqdq $T3,$T2,$T2 # 2:3
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+
+ vpsrlq \$30,$T2,$T3
+ vpsrlq \$4,$T2,$T2
+ vpsrlq \$26,$T0,$T1
+ vpsrlq \$40,$T4,$T4 # 4
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T0,$T0 # 0
+ vpand $MASK,$T1,$T1 # 1
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ vpaddq $H2,$T2,$H2 # accumulate input
+ sub \$64,$len
+ jz .Ltail_avx2$suffix
+ jmp .Loop_avx2$suffix
+
+.align 32
+.Loop_avx2$suffix:
+ ################################################################
+ # ((inp[0]*r^4+inp[4])*r^4+inp[ 8])*r^4
+ # ((inp[1]*r^4+inp[5])*r^4+inp[ 9])*r^3
+ # ((inp[2]*r^4+inp[6])*r^4+inp[10])*r^2
+ # ((inp[3]*r^4+inp[7])*r^4+inp[11])*r^1
+ # \________/\__________/
+ ################################################################
+ #vpaddq $H2,$T2,$H2 # accumulate input
+ vpaddq $H0,$T0,$H0
+ vmovdqa `32*0`(%rsp),$T0 # r0^4
+ vpaddq $H1,$T1,$H1
+ vmovdqa `32*1`(%rsp),$T1 # r1^4
+ vpaddq $H3,$T3,$H3
+ vmovdqa `32*3`(%rsp),$T2 # r2^4
+ vpaddq $H4,$T4,$H4
+ vmovdqa `32*6-0x90`(%rax),$T3 # s3^4
+ vmovdqa `32*8-0x90`(%rax),$S4 # s4^4
+
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ #
+ # however, as h2 is "chronologically" first one available pull
+ # corresponding operations up, so it's
+ #
+ # d4 = h2*r2 + h4*r0 + h3*r1 + h1*r3 + h0*r4
+ # d3 = h2*r1 + h3*r0 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h2*5*r4 + h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3
+ # d0 = h2*5*r3 + h0*r0 + h4*5*r1 + h3*5*r2 + h1*5*r4
+
+ vpmuludq $H2,$T0,$D2 # d2 = h2*r0
+ vpmuludq $H2,$T1,$D3 # d3 = h2*r1
+ vpmuludq $H2,$T2,$D4 # d4 = h2*r2
+ vpmuludq $H2,$T3,$D0 # d0 = h2*s3
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+
+ vpmuludq $H0,$T1,$T4 # h0*r1
+ vpmuludq $H1,$T1,$H2 # h1*r1, borrow $H2 as temp
+ vpaddq $T4,$D1,$D1 # d1 += h0*r1
+ vpaddq $H2,$D2,$D2 # d2 += h1*r1
+ vpmuludq $H3,$T1,$T4 # h3*r1
+ vpmuludq `32*2`(%rsp),$H4,$H2 # h4*s1
+ vpaddq $T4,$D4,$D4 # d4 += h3*r1
+ vpaddq $H2,$D0,$D0 # d0 += h4*s1
+ vmovdqa `32*4-0x90`(%rax),$T1 # s2
+
+ vpmuludq $H0,$T0,$T4 # h0*r0
+ vpmuludq $H1,$T0,$H2 # h1*r0
+ vpaddq $T4,$D0,$D0 # d0 += h0*r0
+ vpaddq $H2,$D1,$D1 # d1 += h1*r0
+ vpmuludq $H3,$T0,$T4 # h3*r0
+ vpmuludq $H4,$T0,$H2 # h4*r0
+ vmovdqu 16*0($inp),%x#$T0 # load input
+ vpaddq $T4,$D3,$D3 # d3 += h3*r0
+ vpaddq $H2,$D4,$D4 # d4 += h4*r0
+ vinserti128 \$1,16*2($inp),$T0,$T0
+
+ vpmuludq $H3,$T1,$T4 # h3*s2
+ vpmuludq $H4,$T1,$H2 # h4*s2
+ vmovdqu 16*1($inp),%x#$T1
+ vpaddq $T4,$D0,$D0 # d0 += h3*s2
+ vpaddq $H2,$D1,$D1 # d1 += h4*s2
+ vmovdqa `32*5-0x90`(%rax),$H2 # r3
+ vpmuludq $H1,$T2,$T4 # h1*r2
+ vpmuludq $H0,$T2,$T2 # h0*r2
+ vpaddq $T4,$D3,$D3 # d3 += h1*r2
+ vpaddq $T2,$D2,$D2 # d2 += h0*r2
+ vinserti128 \$1,16*3($inp),$T1,$T1
+ lea 16*4($inp),$inp
+
+ vpmuludq $H1,$H2,$T4 # h1*r3
+ vpmuludq $H0,$H2,$H2 # h0*r3
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpaddq $T4,$D4,$D4 # d4 += h1*r3
+ vpaddq $H2,$D3,$D3 # d3 += h0*r3
+ vpmuludq $H3,$T3,$T4 # h3*s3
+ vpmuludq $H4,$T3,$H2 # h4*s3
+ vpsrldq \$6,$T1,$T3
+ vpaddq $T4,$D1,$D1 # d1 += h3*s3
+ vpaddq $H2,$D2,$D2 # d2 += h4*s3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+
+ vpmuludq $H3,$S4,$H3 # h3*s4
+ vpmuludq $H4,$S4,$H4 # h4*s4
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpaddq $H3,$D2,$H2 # h2 = d2 + h3*r4
+ vpaddq $H4,$D3,$H3 # h3 = d3 + h4*r4
+ vpunpcklqdq $T3,$T2,$T3 # 2:3
+ vpmuludq `32*7-0x90`(%rax),$H0,$H4 # h0*r4
+ vpmuludq $H1,$S4,$H0 # h1*s4
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+ vpaddq $H4,$D4,$H4 # h4 = d4 + h0*r4
+ vpaddq $H0,$D0,$H0 # h0 = d0 + h1*s4
+
+ ################################################################
+ # lazy reduction (interleaved with tail of input splat)
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$D1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D4
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$4,$T3,$T2
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpand $MASK,$T2,$T2 # 2
+ vpsrlq \$26,$T0,$T1
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpaddq $T2,$H2,$H2 # modulo-scheduled
+ vpsrlq \$30,$T3,$T3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$40,$T4,$T4 # 4
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpand $MASK,$T0,$T0 # 0
+ vpand $MASK,$T1,$T1 # 1
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+
+ sub \$64,$len
+ jnz .Loop_avx2$suffix
+
+ .byte 0x66,0x90
+.Ltail_avx2$suffix:
+ ################################################################
+ # while above multiplications were by r^4 in all lanes, in last
+ # iteration we multiply least significant lane by r^4 and most
+ # significant one by r, so copy of above except that references
+ # to the precomputed table are displaced by 4...
+
+ #vpaddq $H2,$T2,$H2 # accumulate input
+ vpaddq $H0,$T0,$H0
+ vmovdqu `32*0+4`(%rsp),$T0 # r0^4
+ vpaddq $H1,$T1,$H1
+ vmovdqu `32*1+4`(%rsp),$T1 # r1^4
+ vpaddq $H3,$T3,$H3
+ vmovdqu `32*3+4`(%rsp),$T2 # r2^4
+ vpaddq $H4,$T4,$H4
+ vmovdqu `32*6+4-0x90`(%rax),$T3 # s3^4
+ vmovdqu `32*8+4-0x90`(%rax),$S4 # s4^4
+
+ vpmuludq $H2,$T0,$D2 # d2 = h2*r0
+ vpmuludq $H2,$T1,$D3 # d3 = h2*r1
+ vpmuludq $H2,$T2,$D4 # d4 = h2*r2
+ vpmuludq $H2,$T3,$D0 # d0 = h2*s3
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+
+ vpmuludq $H0,$T1,$T4 # h0*r1
+ vpmuludq $H1,$T1,$H2 # h1*r1
+ vpaddq $T4,$D1,$D1 # d1 += h0*r1
+ vpaddq $H2,$D2,$D2 # d2 += h1*r1
+ vpmuludq $H3,$T1,$T4 # h3*r1
+ vpmuludq `32*2+4`(%rsp),$H4,$H2 # h4*s1
+ vpaddq $T4,$D4,$D4 # d4 += h3*r1
+ vpaddq $H2,$D0,$D0 # d0 += h4*s1
+
+ vpmuludq $H0,$T0,$T4 # h0*r0
+ vpmuludq $H1,$T0,$H2 # h1*r0
+ vpaddq $T4,$D0,$D0 # d0 += h0*r0
+ vmovdqu `32*4+4-0x90`(%rax),$T1 # s2
+ vpaddq $H2,$D1,$D1 # d1 += h1*r0
+ vpmuludq $H3,$T0,$T4 # h3*r0
+ vpmuludq $H4,$T0,$H2 # h4*r0
+ vpaddq $T4,$D3,$D3 # d3 += h3*r0
+ vpaddq $H2,$D4,$D4 # d4 += h4*r0
+
+ vpmuludq $H3,$T1,$T4 # h3*s2
+ vpmuludq $H4,$T1,$H2 # h4*s2
+ vpaddq $T4,$D0,$D0 # d0 += h3*s2
+ vpaddq $H2,$D1,$D1 # d1 += h4*s2
+ vmovdqu `32*5+4-0x90`(%rax),$H2 # r3
+ vpmuludq $H1,$T2,$T4 # h1*r2
+ vpmuludq $H0,$T2,$T2 # h0*r2
+ vpaddq $T4,$D3,$D3 # d3 += h1*r2
+ vpaddq $T2,$D2,$D2 # d2 += h0*r2
+
+ vpmuludq $H1,$H2,$T4 # h1*r3
+ vpmuludq $H0,$H2,$H2 # h0*r3
+ vpaddq $T4,$D4,$D4 # d4 += h1*r3
+ vpaddq $H2,$D3,$D3 # d3 += h0*r3
+ vpmuludq $H3,$T3,$T4 # h3*s3
+ vpmuludq $H4,$T3,$H2 # h4*s3
+ vpaddq $T4,$D1,$D1 # d1 += h3*s3
+ vpaddq $H2,$D2,$D2 # d2 += h4*s3
+
+ vpmuludq $H3,$S4,$H3 # h3*s4
+ vpmuludq $H4,$S4,$H4 # h4*s4
+ vpaddq $H3,$D2,$H2 # h2 = d2 + h3*r4
+ vpaddq $H4,$D3,$H3 # h3 = d3 + h4*r4
+ vpmuludq `32*7+4-0x90`(%rax),$H0,$H4 # h0*r4
+ vpmuludq $H1,$S4,$H0 # h1*s4
+ vmovdqa 64(%rcx),$MASK # .Lmask26
+ vpaddq $H4,$D4,$H4 # h4 = d4 + h0*r4
+ vpaddq $H0,$D0,$H0 # h0 = d0 + h1*s4
+
+ ################################################################
+ # horizontal addition
+
+ vpsrldq \$8,$D1,$T1
+ vpsrldq \$8,$H2,$T2
+ vpsrldq \$8,$H3,$T3
+ vpsrldq \$8,$H4,$T4
+ vpsrldq \$8,$H0,$T0
+ vpaddq $T1,$D1,$D1
+ vpaddq $T2,$H2,$H2
+ vpaddq $T3,$H3,$H3
+ vpaddq $T4,$H4,$H4
+ vpaddq $T0,$H0,$H0
+
+ vpermq \$0x2,$H3,$T3
+ vpermq \$0x2,$H4,$T4
+ vpermq \$0x2,$H0,$T0
+ vpermq \$0x2,$D1,$T1
+ vpermq \$0x2,$H2,$T2
+ vpaddq $T3,$H3,$H3
+ vpaddq $T4,$H4,$H4
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$D1,$D1
+ vpaddq $T2,$H2,$H2
+
+ ################################################################
+ # lazy reduction
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$D1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D4
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vmovd %x#$H0,`4*0-48-64`($ctx)# save partially reduced
+ vmovd %x#$H1,`4*1-48-64`($ctx)
+ vmovd %x#$H2,`4*2-48-64`($ctx)
+ vmovd %x#$H3,`4*3-48-64`($ctx)
+ vmovd %x#$H4,`4*4-48-64`($ctx)
+___
+$code.=<<___ if ($win64);
+ vmovdqa -0xb0(%r10),%xmm6
+ vmovdqa -0xa0(%r10),%xmm7
+ vmovdqa -0x90(%r10),%xmm8
+ vmovdqa -0x80(%r10),%xmm9
+ vmovdqa -0x70(%r10),%xmm10
+ vmovdqa -0x60(%r10),%xmm11
+ vmovdqa -0x50(%r10),%xmm12
+ vmovdqa -0x40(%r10),%xmm13
+ vmovdqa -0x30(%r10),%xmm14
+ vmovdqa -0x20(%r10),%xmm15
+ lea -8(%r10),%rsp
+.Ldo_avx2_epilogue$suffix:
+___
+$code.=<<___ if (!$win64);
+ lea -8(%r10),%rsp
+.cfi_def_cfa_register %rsp
+___
+$code.=<<___;
+ vzeroupper
+ RET
+.cfi_endproc
+___
+if($avx > 2 && $avx512) {
+my ($R0,$R1,$R2,$R3,$R4, $S1,$S2,$S3,$S4) = map("%zmm$_",(16..24));
+my ($M0,$M1,$M2,$M3,$M4) = map("%zmm$_",(25..29));
+my $PADBIT="%zmm30";
+
+map(s/%y/%z/,($T4,$T0,$T1,$T2,$T3)); # switch to %zmm domain
+map(s/%y/%z/,($D0,$D1,$D2,$D3,$D4));
+map(s/%y/%z/,($H0,$H1,$H2,$H3,$H4));
+map(s/%y/%z/,($MASK));
+
+$code.=<<___;
+.cfi_startproc
+.Lblocks_avx512:
+ mov \$15,%eax
+ kmovw %eax,%k2
+___
+$code.=<<___ if (!$win64);
+ lea 8(%rsp),%r10
+.cfi_def_cfa_register %r10
+ sub \$0x128,%rsp
+___
+$code.=<<___ if ($win64);
+ lea 8(%rsp),%r10
+ sub \$0x1c8,%rsp
+ vmovdqa %xmm6,-0xb0(%r10)
+ vmovdqa %xmm7,-0xa0(%r10)
+ vmovdqa %xmm8,-0x90(%r10)
+ vmovdqa %xmm9,-0x80(%r10)
+ vmovdqa %xmm10,-0x70(%r10)
+ vmovdqa %xmm11,-0x60(%r10)
+ vmovdqa %xmm12,-0x50(%r10)
+ vmovdqa %xmm13,-0x40(%r10)
+ vmovdqa %xmm14,-0x30(%r10)
+ vmovdqa %xmm15,-0x20(%r10)
+.Ldo_avx512_body:
+___
+$code.=<<___;
+ lea .Lconst(%rip),%rcx
+ lea 48+64($ctx),$ctx # size optimization
+ vmovdqa 96(%rcx),%y#$T2 # .Lpermd_avx2
+
+ # expand pre-calculated table
+ vmovdqu `16*0-64`($ctx),%x#$D0 # will become expanded ${R0}
+ and \$-512,%rsp
+ vmovdqu `16*1-64`($ctx),%x#$D1 # will become ... ${R1}
+ mov \$0x20,%rax
+ vmovdqu `16*2-64`($ctx),%x#$T0 # ... ${S1}
+ vmovdqu `16*3-64`($ctx),%x#$D2 # ... ${R2}
+ vmovdqu `16*4-64`($ctx),%x#$T1 # ... ${S2}
+ vmovdqu `16*5-64`($ctx),%x#$D3 # ... ${R3}
+ vmovdqu `16*6-64`($ctx),%x#$T3 # ... ${S3}
+ vmovdqu `16*7-64`($ctx),%x#$D4 # ... ${R4}
+ vmovdqu `16*8-64`($ctx),%x#$T4 # ... ${S4}
+ vpermd $D0,$T2,$R0 # 00003412 -> 14243444
+ vpbroadcastq 64(%rcx),$MASK # .Lmask26
+ vpermd $D1,$T2,$R1
+ vpermd $T0,$T2,$S1
+ vpermd $D2,$T2,$R2
+ vmovdqa64 $R0,0x00(%rsp){%k2} # save in case $len%128 != 0
+ vpsrlq \$32,$R0,$T0 # 14243444 -> 01020304
+ vpermd $T1,$T2,$S2
+ vmovdqu64 $R1,0x00(%rsp,%rax){%k2}
+ vpsrlq \$32,$R1,$T1
+ vpermd $D3,$T2,$R3
+ vmovdqa64 $S1,0x40(%rsp){%k2}
+ vpermd $T3,$T2,$S3
+ vpermd $D4,$T2,$R4
+ vmovdqu64 $R2,0x40(%rsp,%rax){%k2}
+ vpermd $T4,$T2,$S4
+ vmovdqa64 $S2,0x80(%rsp){%k2}
+ vmovdqu64 $R3,0x80(%rsp,%rax){%k2}
+ vmovdqa64 $S3,0xc0(%rsp){%k2}
+ vmovdqu64 $R4,0xc0(%rsp,%rax){%k2}
+ vmovdqa64 $S4,0x100(%rsp){%k2}
+
+ ################################################################
+ # calculate 5th through 8th powers of the key
+ #
+ # d0 = r0'*r0 + r1'*5*r4 + r2'*5*r3 + r3'*5*r2 + r4'*5*r1
+ # d1 = r0'*r1 + r1'*r0 + r2'*5*r4 + r3'*5*r3 + r4'*5*r2
+ # d2 = r0'*r2 + r1'*r1 + r2'*r0 + r3'*5*r4 + r4'*5*r3
+ # d3 = r0'*r3 + r1'*r2 + r2'*r1 + r3'*r0 + r4'*5*r4
+ # d4 = r0'*r4 + r1'*r3 + r2'*r2 + r3'*r1 + r4'*r0
+
+ vpmuludq $T0,$R0,$D0 # d0 = r0'*r0
+ vpmuludq $T0,$R1,$D1 # d1 = r0'*r1
+ vpmuludq $T0,$R2,$D2 # d2 = r0'*r2
+ vpmuludq $T0,$R3,$D3 # d3 = r0'*r3
+ vpmuludq $T0,$R4,$D4 # d4 = r0'*r4
+ vpsrlq \$32,$R2,$T2
+
+ vpmuludq $T1,$S4,$M0
+ vpmuludq $T1,$R0,$M1
+ vpmuludq $T1,$R1,$M2
+ vpmuludq $T1,$R2,$M3
+ vpmuludq $T1,$R3,$M4
+ vpsrlq \$32,$R3,$T3
+ vpaddq $M0,$D0,$D0 # d0 += r1'*5*r4
+ vpaddq $M1,$D1,$D1 # d1 += r1'*r0
+ vpaddq $M2,$D2,$D2 # d2 += r1'*r1
+ vpaddq $M3,$D3,$D3 # d3 += r1'*r2
+ vpaddq $M4,$D4,$D4 # d4 += r1'*r3
+
+ vpmuludq $T2,$S3,$M0
+ vpmuludq $T2,$S4,$M1
+ vpmuludq $T2,$R1,$M3
+ vpmuludq $T2,$R2,$M4
+ vpmuludq $T2,$R0,$M2
+ vpsrlq \$32,$R4,$T4
+ vpaddq $M0,$D0,$D0 # d0 += r2'*5*r3
+ vpaddq $M1,$D1,$D1 # d1 += r2'*5*r4
+ vpaddq $M3,$D3,$D3 # d3 += r2'*r1
+ vpaddq $M4,$D4,$D4 # d4 += r2'*r2
+ vpaddq $M2,$D2,$D2 # d2 += r2'*r0
+
+ vpmuludq $T3,$S2,$M0
+ vpmuludq $T3,$R0,$M3
+ vpmuludq $T3,$R1,$M4
+ vpmuludq $T3,$S3,$M1
+ vpmuludq $T3,$S4,$M2
+ vpaddq $M0,$D0,$D0 # d0 += r3'*5*r2
+ vpaddq $M3,$D3,$D3 # d3 += r3'*r0
+ vpaddq $M4,$D4,$D4 # d4 += r3'*r1
+ vpaddq $M1,$D1,$D1 # d1 += r3'*5*r3
+ vpaddq $M2,$D2,$D2 # d2 += r3'*5*r4
+
+ vpmuludq $T4,$S4,$M3
+ vpmuludq $T4,$R0,$M4
+ vpmuludq $T4,$S1,$M0
+ vpmuludq $T4,$S2,$M1
+ vpmuludq $T4,$S3,$M2
+ vpaddq $M3,$D3,$D3 # d3 += r2'*5*r4
+ vpaddq $M4,$D4,$D4 # d4 += r2'*r0
+ vpaddq $M0,$D0,$D0 # d0 += r2'*5*r1
+ vpaddq $M1,$D1,$D1 # d1 += r2'*5*r2
+ vpaddq $M2,$D2,$D2 # d2 += r2'*5*r3
+
+ ################################################################
+ # load input
+ vmovdqu64 16*0($inp),%z#$T3
+ vmovdqu64 16*4($inp),%z#$T4
+ lea 16*8($inp),$inp
+
+ ################################################################
+ # lazy reduction
+
+ vpsrlq \$26,$D3,$M3
+ vpandq $MASK,$D3,$D3
+ vpaddq $M3,$D4,$D4 # d3 -> d4
+
+ vpsrlq \$26,$D0,$M0
+ vpandq $MASK,$D0,$D0
+ vpaddq $M0,$D1,$D1 # d0 -> d1
+
+ vpsrlq \$26,$D4,$M4
+ vpandq $MASK,$D4,$D4
+
+ vpsrlq \$26,$D1,$M1
+ vpandq $MASK,$D1,$D1
+ vpaddq $M1,$D2,$D2 # d1 -> d2
+
+ vpaddq $M4,$D0,$D0
+ vpsllq \$2,$M4,$M4
+ vpaddq $M4,$D0,$D0 # d4 -> d0
+
+ vpsrlq \$26,$D2,$M2
+ vpandq $MASK,$D2,$D2
+ vpaddq $M2,$D3,$D3 # d2 -> d3
+
+ vpsrlq \$26,$D0,$M0
+ vpandq $MASK,$D0,$D0
+ vpaddq $M0,$D1,$D1 # d0 -> d1
+
+ vpsrlq \$26,$D3,$M3
+ vpandq $MASK,$D3,$D3
+ vpaddq $M3,$D4,$D4 # d3 -> d4
+
+ ################################################################
+ # at this point we have 14243444 in $R0-$S4 and 05060708 in
+ # $D0-$D4, ...
+
+ vpunpcklqdq $T4,$T3,$T0 # transpose input
+ vpunpckhqdq $T4,$T3,$T4
+
+ # ... since input 64-bit lanes are ordered as 73625140, we could
+ # "vperm" it to 76543210 (here and in each loop iteration), *or*
+ # we could just flow along, hence the goal for $R0-$S4 is
+ # 1858286838784888 ...
+
+ vmovdqa32 128(%rcx),$M0 # .Lpermd_avx512:
+ mov \$0x7777,%eax
+ kmovw %eax,%k1
+
+ vpermd $R0,$M0,$R0 # 14243444 -> 1---2---3---4---
+ vpermd $R1,$M0,$R1
+ vpermd $R2,$M0,$R2
+ vpermd $R3,$M0,$R3
+ vpermd $R4,$M0,$R4
+
+ vpermd $D0,$M0,${R0}{%k1} # 05060708 -> 1858286838784888
+ vpermd $D1,$M0,${R1}{%k1}
+ vpermd $D2,$M0,${R2}{%k1}
+ vpermd $D3,$M0,${R3}{%k1}
+ vpermd $D4,$M0,${R4}{%k1}
+
+ vpslld \$2,$R1,$S1 # *5
+ vpslld \$2,$R2,$S2
+ vpslld \$2,$R3,$S3
+ vpslld \$2,$R4,$S4
+ vpaddd $R1,$S1,$S1
+ vpaddd $R2,$S2,$S2
+ vpaddd $R3,$S3,$S3
+ vpaddd $R4,$S4,$S4
+
+ vpbroadcastq 32(%rcx),$PADBIT # .L129
+
+ vpsrlq \$52,$T0,$T2 # splat input
+ vpsllq \$12,$T4,$T3
+ vporq $T3,$T2,$T2
+ vpsrlq \$26,$T0,$T1
+ vpsrlq \$14,$T4,$T3
+ vpsrlq \$40,$T4,$T4 # 4
+ vpandq $MASK,$T2,$T2 # 2
+ vpandq $MASK,$T0,$T0 # 0
+ #vpandq $MASK,$T1,$T1 # 1
+ #vpandq $MASK,$T3,$T3 # 3
+ #vporq $PADBIT,$T4,$T4 # padbit, yes, always
+
+ vpaddq $H2,$T2,$H2 # accumulate input
+ sub \$192,$len
+ jbe .Ltail_avx512
+ jmp .Loop_avx512
+
+.align 32
+.Loop_avx512:
+ ################################################################
+ # ((inp[0]*r^8+inp[ 8])*r^8+inp[16])*r^8
+ # ((inp[1]*r^8+inp[ 9])*r^8+inp[17])*r^7
+ # ((inp[2]*r^8+inp[10])*r^8+inp[18])*r^6
+ # ((inp[3]*r^8+inp[11])*r^8+inp[19])*r^5
+ # ((inp[4]*r^8+inp[12])*r^8+inp[20])*r^4
+ # ((inp[5]*r^8+inp[13])*r^8+inp[21])*r^3
+ # ((inp[6]*r^8+inp[14])*r^8+inp[22])*r^2
+ # ((inp[7]*r^8+inp[15])*r^8+inp[23])*r^1
+ # \________/\___________/
+ ################################################################
+ #vpaddq $H2,$T2,$H2 # accumulate input
+
+ # d4 = h4*r0 + h3*r1 + h2*r2 + h1*r3 + h0*r4
+ # d3 = h3*r0 + h2*r1 + h1*r2 + h0*r3 + h4*5*r4
+ # d2 = h2*r0 + h1*r1 + h0*r2 + h4*5*r3 + h3*5*r4
+ # d1 = h1*r0 + h0*r1 + h4*5*r2 + h3*5*r3 + h2*5*r4
+ # d0 = h0*r0 + h4*5*r1 + h3*5*r2 + h2*5*r3 + h1*5*r4
+ #
+ # however, as h2 is "chronologically" first one available pull
+ # corresponding operations up, so it's
+ #
+ # d3 = h2*r1 + h0*r3 + h1*r2 + h3*r0 + h4*5*r4
+ # d4 = h2*r2 + h0*r4 + h1*r3 + h3*r1 + h4*r0
+ # d0 = h2*5*r3 + h0*r0 + h1*5*r4 + h3*5*r2 + h4*5*r1
+ # d1 = h2*5*r4 + h0*r1 + h1*r0 + h3*5*r3 + h4*5*r2
+ # d2 = h2*r0 + h0*r2 + h1*r1 + h3*5*r4 + h4*5*r3
+
+ vpmuludq $H2,$R1,$D3 # d3 = h2*r1
+ vpaddq $H0,$T0,$H0
+ vpmuludq $H2,$R2,$D4 # d4 = h2*r2
+ vpandq $MASK,$T1,$T1 # 1
+ vpmuludq $H2,$S3,$D0 # d0 = h2*s3
+ vpandq $MASK,$T3,$T3 # 3
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+ vporq $PADBIT,$T4,$T4 # padbit, yes, always
+ vpmuludq $H2,$R0,$D2 # d2 = h2*r0
+ vpaddq $H1,$T1,$H1 # accumulate input
+ vpaddq $H3,$T3,$H3
+ vpaddq $H4,$T4,$H4
+
+ vmovdqu64 16*0($inp),$T3 # load input
+ vmovdqu64 16*4($inp),$T4
+ lea 16*8($inp),$inp
+ vpmuludq $H0,$R3,$M3
+ vpmuludq $H0,$R4,$M4
+ vpmuludq $H0,$R0,$M0
+ vpmuludq $H0,$R1,$M1
+ vpaddq $M3,$D3,$D3 # d3 += h0*r3
+ vpaddq $M4,$D4,$D4 # d4 += h0*r4
+ vpaddq $M0,$D0,$D0 # d0 += h0*r0
+ vpaddq $M1,$D1,$D1 # d1 += h0*r1
+
+ vpmuludq $H1,$R2,$M3
+ vpmuludq $H1,$R3,$M4
+ vpmuludq $H1,$S4,$M0
+ vpmuludq $H0,$R2,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h1*r2
+ vpaddq $M4,$D4,$D4 # d4 += h1*r3
+ vpaddq $M0,$D0,$D0 # d0 += h1*s4
+ vpaddq $M2,$D2,$D2 # d2 += h0*r2
+
+ vpunpcklqdq $T4,$T3,$T0 # transpose input
+ vpunpckhqdq $T4,$T3,$T4
+
+ vpmuludq $H3,$R0,$M3
+ vpmuludq $H3,$R1,$M4
+ vpmuludq $H1,$R0,$M1
+ vpmuludq $H1,$R1,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h3*r0
+ vpaddq $M4,$D4,$D4 # d4 += h3*r1
+ vpaddq $M1,$D1,$D1 # d1 += h1*r0
+ vpaddq $M2,$D2,$D2 # d2 += h1*r1
+
+ vpmuludq $H4,$S4,$M3
+ vpmuludq $H4,$R0,$M4
+ vpmuludq $H3,$S2,$M0
+ vpmuludq $H3,$S3,$M1
+ vpaddq $M3,$D3,$D3 # d3 += h4*s4
+ vpmuludq $H3,$S4,$M2
+ vpaddq $M4,$D4,$D4 # d4 += h4*r0
+ vpaddq $M0,$D0,$D0 # d0 += h3*s2
+ vpaddq $M1,$D1,$D1 # d1 += h3*s3
+ vpaddq $M2,$D2,$D2 # d2 += h3*s4
+
+ vpmuludq $H4,$S1,$M0
+ vpmuludq $H4,$S2,$M1
+ vpmuludq $H4,$S3,$M2
+ vpaddq $M0,$D0,$H0 # h0 = d0 + h4*s1
+ vpaddq $M1,$D1,$H1 # h1 = d2 + h4*s2
+ vpaddq $M2,$D2,$H2 # h2 = d3 + h4*s3
+
+ ################################################################
+ # lazy reduction (interleaved with input splat)
+
+ vpsrlq \$52,$T0,$T2 # splat input
+ vpsllq \$12,$T4,$T3
+
+ vpsrlq \$26,$D3,$H3
+ vpandq $MASK,$D3,$D3
+ vpaddq $H3,$D4,$H4 # h3 -> h4
+
+ vporq $T3,$T2,$T2
+
+ vpsrlq \$26,$H0,$D0
+ vpandq $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpandq $MASK,$T2,$T2 # 2
+
+ vpsrlq \$26,$H4,$D4
+ vpandq $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpandq $MASK,$H1,$H1
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpaddq $T2,$H2,$H2 # modulo-scheduled
+ vpsrlq \$26,$T0,$T1
+
+ vpsrlq \$26,$H2,$D2
+ vpandq $MASK,$H2,$H2
+ vpaddq $D2,$D3,$H3 # h2 -> h3
+
+ vpsrlq \$14,$T4,$T3
+
+ vpsrlq \$26,$H0,$D0
+ vpandq $MASK,$H0,$H0
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$40,$T4,$T4 # 4
+
+ vpsrlq \$26,$H3,$D3
+ vpandq $MASK,$H3,$H3
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpandq $MASK,$T0,$T0 # 0
+ #vpandq $MASK,$T1,$T1 # 1
+ #vpandq $MASK,$T3,$T3 # 3
+ #vporq $PADBIT,$T4,$T4 # padbit, yes, always
+
+ sub \$128,$len
+ ja .Loop_avx512
+
+.Ltail_avx512:
+ ################################################################
+ # while above multiplications were by r^8 in all lanes, in last
+ # iteration we multiply least significant lane by r^8 and most
+ # significant one by r, that's why table gets shifted...
+
+ vpsrlq \$32,$R0,$R0 # 0105020603070408
+ vpsrlq \$32,$R1,$R1
+ vpsrlq \$32,$R2,$R2
+ vpsrlq \$32,$S3,$S3
+ vpsrlq \$32,$S4,$S4
+ vpsrlq \$32,$R3,$R3
+ vpsrlq \$32,$R4,$R4
+ vpsrlq \$32,$S1,$S1
+ vpsrlq \$32,$S2,$S2
+
+ ################################################################
+ # load either next or last 64 byte of input
+ lea ($inp,$len),$inp
+
+ #vpaddq $H2,$T2,$H2 # accumulate input
+ vpaddq $H0,$T0,$H0
+
+ vpmuludq $H2,$R1,$D3 # d3 = h2*r1
+ vpmuludq $H2,$R2,$D4 # d4 = h2*r2
+ vpmuludq $H2,$S3,$D0 # d0 = h2*s3
+ vpandq $MASK,$T1,$T1 # 1
+ vpmuludq $H2,$S4,$D1 # d1 = h2*s4
+ vpandq $MASK,$T3,$T3 # 3
+ vpmuludq $H2,$R0,$D2 # d2 = h2*r0
+ vporq $PADBIT,$T4,$T4 # padbit, yes, always
+ vpaddq $H1,$T1,$H1 # accumulate input
+ vpaddq $H3,$T3,$H3
+ vpaddq $H4,$T4,$H4
+
+ vmovdqu 16*0($inp),%x#$T0
+ vpmuludq $H0,$R3,$M3
+ vpmuludq $H0,$R4,$M4
+ vpmuludq $H0,$R0,$M0
+ vpmuludq $H0,$R1,$M1
+ vpaddq $M3,$D3,$D3 # d3 += h0*r3
+ vpaddq $M4,$D4,$D4 # d4 += h0*r4
+ vpaddq $M0,$D0,$D0 # d0 += h0*r0
+ vpaddq $M1,$D1,$D1 # d1 += h0*r1
+
+ vmovdqu 16*1($inp),%x#$T1
+ vpmuludq $H1,$R2,$M3
+ vpmuludq $H1,$R3,$M4
+ vpmuludq $H1,$S4,$M0
+ vpmuludq $H0,$R2,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h1*r2
+ vpaddq $M4,$D4,$D4 # d4 += h1*r3
+ vpaddq $M0,$D0,$D0 # d0 += h1*s4
+ vpaddq $M2,$D2,$D2 # d2 += h0*r2
+
+ vinserti128 \$1,16*2($inp),%y#$T0,%y#$T0
+ vpmuludq $H3,$R0,$M3
+ vpmuludq $H3,$R1,$M4
+ vpmuludq $H1,$R0,$M1
+ vpmuludq $H1,$R1,$M2
+ vpaddq $M3,$D3,$D3 # d3 += h3*r0
+ vpaddq $M4,$D4,$D4 # d4 += h3*r1
+ vpaddq $M1,$D1,$D1 # d1 += h1*r0
+ vpaddq $M2,$D2,$D2 # d2 += h1*r1
+
+ vinserti128 \$1,16*3($inp),%y#$T1,%y#$T1
+ vpmuludq $H4,$S4,$M3
+ vpmuludq $H4,$R0,$M4
+ vpmuludq $H3,$S2,$M0
+ vpmuludq $H3,$S3,$M1
+ vpmuludq $H3,$S4,$M2
+ vpaddq $M3,$D3,$H3 # h3 = d3 + h4*s4
+ vpaddq $M4,$D4,$D4 # d4 += h4*r0
+ vpaddq $M0,$D0,$D0 # d0 += h3*s2
+ vpaddq $M1,$D1,$D1 # d1 += h3*s3
+ vpaddq $M2,$D2,$D2 # d2 += h3*s4
+
+ vpmuludq $H4,$S1,$M0
+ vpmuludq $H4,$S2,$M1
+ vpmuludq $H4,$S3,$M2
+ vpaddq $M0,$D0,$H0 # h0 = d0 + h4*s1
+ vpaddq $M1,$D1,$H1 # h1 = d2 + h4*s2
+ vpaddq $M2,$D2,$H2 # h2 = d3 + h4*s3
+
+ ################################################################
+ # horizontal addition
+
+ mov \$1,%eax
+ vpermq \$0xb1,$H3,$D3
+ vpermq \$0xb1,$D4,$H4
+ vpermq \$0xb1,$H0,$D0
+ vpermq \$0xb1,$H1,$D1
+ vpermq \$0xb1,$H2,$D2
+ vpaddq $D3,$H3,$H3
+ vpaddq $D4,$H4,$H4
+ vpaddq $D0,$H0,$H0
+ vpaddq $D1,$H1,$H1
+ vpaddq $D2,$H2,$H2
+
+ kmovw %eax,%k3
+ vpermq \$0x2,$H3,$D3
+ vpermq \$0x2,$H4,$D4
+ vpermq \$0x2,$H0,$D0
+ vpermq \$0x2,$H1,$D1
+ vpermq \$0x2,$H2,$D2
+ vpaddq $D3,$H3,$H3
+ vpaddq $D4,$H4,$H4
+ vpaddq $D0,$H0,$H0
+ vpaddq $D1,$H1,$H1
+ vpaddq $D2,$H2,$H2
+
+ vextracti64x4 \$0x1,$H3,%y#$D3
+ vextracti64x4 \$0x1,$H4,%y#$D4
+ vextracti64x4 \$0x1,$H0,%y#$D0
+ vextracti64x4 \$0x1,$H1,%y#$D1
+ vextracti64x4 \$0x1,$H2,%y#$D2
+ vpaddq $D3,$H3,${H3}{%k3}{z} # keep single qword in case
+ vpaddq $D4,$H4,${H4}{%k3}{z} # it's passed to .Ltail_avx2
+ vpaddq $D0,$H0,${H0}{%k3}{z}
+ vpaddq $D1,$H1,${H1}{%k3}{z}
+ vpaddq $D2,$H2,${H2}{%k3}{z}
+___
+map(s/%z/%y/,($T0,$T1,$T2,$T3,$T4, $PADBIT));
+map(s/%z/%y/,($H0,$H1,$H2,$H3,$H4, $D0,$D1,$D2,$D3,$D4, $MASK));
+$code.=<<___;
+ ################################################################
+ # lazy reduction (interleaved with input splat)
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpsrldq \$6,$T0,$T2 # splat input
+ vpsrldq \$6,$T1,$T3
+ vpunpckhqdq $T1,$T0,$T4 # 4
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpunpcklqdq $T3,$T2,$T2 # 2:3
+ vpunpcklqdq $T1,$T0,$T0 # 0:1
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H4,$D4
+ vpand $MASK,$H4,$H4
+
+ vpsrlq \$26,$H1,$D1
+ vpand $MASK,$H1,$H1
+ vpsrlq \$30,$T2,$T3
+ vpsrlq \$4,$T2,$T2
+ vpaddq $D1,$H2,$H2 # h1 -> h2
+
+ vpaddq $D4,$H0,$H0
+ vpsllq \$2,$D4,$D4
+ vpsrlq \$26,$T0,$T1
+ vpsrlq \$40,$T4,$T4 # 4
+ vpaddq $D4,$H0,$H0 # h4 -> h0
+
+ vpsrlq \$26,$H2,$D2
+ vpand $MASK,$H2,$H2
+ vpand $MASK,$T2,$T2 # 2
+ vpand $MASK,$T0,$T0 # 0
+ vpaddq $D2,$H3,$H3 # h2 -> h3
+
+ vpsrlq \$26,$H0,$D0
+ vpand $MASK,$H0,$H0
+ vpaddq $H2,$T2,$H2 # accumulate input for .Ltail_avx2
+ vpand $MASK,$T1,$T1 # 1
+ vpaddq $D0,$H1,$H1 # h0 -> h1
+
+ vpsrlq \$26,$H3,$D3
+ vpand $MASK,$H3,$H3
+ vpand $MASK,$T3,$T3 # 3
+ vpor 32(%rcx),$T4,$T4 # padbit, yes, always
+ vpaddq $D3,$H4,$H4 # h3 -> h4
+
+ lea 0x90(%rsp),%rax # size optimization for .Ltail_avx2
+ add \$64,$len
+ jnz .Ltail_avx2$suffix
+
+ vpsubq $T2,$H2,$H2 # undo input accumulation
+ vmovd %x#$H0,`4*0-48-64`($ctx)# save partially reduced
+ vmovd %x#$H1,`4*1-48-64`($ctx)
+ vmovd %x#$H2,`4*2-48-64`($ctx)
+ vmovd %x#$H3,`4*3-48-64`($ctx)
+ vmovd %x#$H4,`4*4-48-64`($ctx)
+ vzeroall
+___
+$code.=<<___ if ($win64);
+ movdqa -0xb0(%r10),%xmm6
+ movdqa -0xa0(%r10),%xmm7
+ movdqa -0x90(%r10),%xmm8
+ movdqa -0x80(%r10),%xmm9
+ movdqa -0x70(%r10),%xmm10
+ movdqa -0x60(%r10),%xmm11
+ movdqa -0x50(%r10),%xmm12
+ movdqa -0x40(%r10),%xmm13
+ movdqa -0x30(%r10),%xmm14
+ movdqa -0x20(%r10),%xmm15
+ lea -8(%r10),%rsp
+.Ldo_avx512_epilogue:
+___
+$code.=<<___ if (!$win64);
+ lea -8(%r10),%rsp
+.cfi_def_cfa_register %rsp
+___
+$code.=<<___;
+ RET
+.cfi_endproc
+___
+
+}
+
+}
+
+&declare_function("poly1305_blocks_avx2", 32, 4);
+poly1305_blocks_avxN(0);
+&end_function("poly1305_blocks_avx2");
+
+#######################################################################
+if ($avx>2) {
+# On entry we have input length divisible by 64. But since inner loop
+# processes 128 bytes per iteration, cases when length is not divisible
+# by 128 are handled by passing tail 64 bytes to .Ltail_avx2. For this
+# reason stack layout is kept identical to poly1305_blocks_avx2. If not
+# for this tail, we wouldn't have to even allocate stack frame...
+
+if($kernel) {
+ $code .= "#ifdef CONFIG_AS_AVX512\n";
+}
+
+&declare_function("poly1305_blocks_avx512", 32, 4);
+poly1305_blocks_avxN(1);
+&end_function("poly1305_blocks_avx512");
+
+if ($kernel) {
+ $code .= "#endif\n";
+}
+
+if (!$kernel && $avx>3) {
+########################################################################
+# VPMADD52 version using 2^44 radix.
+#
+# One can argue that base 2^52 would be more natural. Well, even though
+# some operations would be more natural, one has to recognize couple of
+# things. Base 2^52 doesn't provide advantage over base 2^44 if you look
+# at amount of multiply-n-accumulate operations. Secondly, it makes it
+# impossible to pre-compute multiples of 5 [referred to as s[]/sN in
+# reference implementations], which means that more such operations
+# would have to be performed in inner loop, which in turn makes critical
+# path longer. In other words, even though base 2^44 reduction might
+# look less elegant, overall critical path is actually shorter...
+
+########################################################################
+# Layout of opaque area is following.
+#
+# unsigned __int64 h[3]; # current hash value base 2^44
+# unsigned __int64 s[2]; # key value*20 base 2^44
+# unsigned __int64 r[3]; # key value base 2^44
+# struct { unsigned __int64 r^1, r^3, r^2, r^4; } R[4];
+# # r^n positions reflect
+# # placement in register, not
+# # memory, R[3] is R[1]*20
+
+$code.=<<___;
+.type poly1305_init_base2_44,\@function,3
+.align 32
+poly1305_init_base2_44:
+ xor %eax,%eax
+ mov %rax,0($ctx) # initialize hash value
+ mov %rax,8($ctx)
+ mov %rax,16($ctx)
+
+.Linit_base2_44:
+ lea poly1305_blocks_vpmadd52(%rip),%r10
+ lea poly1305_emit_base2_44(%rip),%r11
+
+ mov \$0x0ffffffc0fffffff,%rax
+ mov \$0x0ffffffc0ffffffc,%rcx
+ and 0($inp),%rax
+ mov \$0x00000fffffffffff,%r8
+ and 8($inp),%rcx
+ mov \$0x00000fffffffffff,%r9
+ and %rax,%r8
+ shrd \$44,%rcx,%rax
+ mov %r8,40($ctx) # r0
+ and %r9,%rax
+ shr \$24,%rcx
+ mov %rax,48($ctx) # r1
+ lea (%rax,%rax,4),%rax # *5
+ mov %rcx,56($ctx) # r2
+ shl \$2,%rax # magic <<2
+ lea (%rcx,%rcx,4),%rcx # *5
+ shl \$2,%rcx # magic <<2
+ mov %rax,24($ctx) # s1
+ mov %rcx,32($ctx) # s2
+ movq \$-1,64($ctx) # write impossible value
+___
+$code.=<<___ if ($flavour !~ /elf32/);
+ mov %r10,0(%rdx)
+ mov %r11,8(%rdx)
+___
+$code.=<<___ if ($flavour =~ /elf32/);
+ mov %r10d,0(%rdx)
+ mov %r11d,4(%rdx)
+___
+$code.=<<___;
+ mov \$1,%eax
+ RET
+.size poly1305_init_base2_44,.-poly1305_init_base2_44
+___
+{
+my ($H0,$H1,$H2,$r2r1r0,$r1r0s2,$r0s2s1,$Dlo,$Dhi) = map("%ymm$_",(0..5,16,17));
+my ($T0,$inp_permd,$inp_shift,$PAD) = map("%ymm$_",(18..21));
+my ($reduc_mask,$reduc_rght,$reduc_left) = map("%ymm$_",(22..25));
+
+$code.=<<___;
+.type poly1305_blocks_vpmadd52,\@function,4
+.align 32
+poly1305_blocks_vpmadd52:
+ shr \$4,$len
+ jz .Lno_data_vpmadd52 # too short
+
+ shl \$40,$padbit
+ mov 64($ctx),%r8 # peek on power of the key
+
+ # if powers of the key are not calculated yet, process up to 3
+ # blocks with this single-block subroutine, otherwise ensure that
+ # length is divisible by 2 blocks and pass the rest down to next
+ # subroutine...
+
+ mov \$3,%rax
+ mov \$1,%r10
+ cmp \$4,$len # is input long
+ cmovae %r10,%rax
+ test %r8,%r8 # is power value impossible?
+ cmovns %r10,%rax
+
+ and $len,%rax # is input of favourable length?
+ jz .Lblocks_vpmadd52_4x
+
+ sub %rax,$len
+ mov \$7,%r10d
+ mov \$1,%r11d
+ kmovw %r10d,%k7
+ lea .L2_44_inp_permd(%rip),%r10
+ kmovw %r11d,%k1
+
+ vmovq $padbit,%x#$PAD
+ vmovdqa64 0(%r10),$inp_permd # .L2_44_inp_permd
+ vmovdqa64 32(%r10),$inp_shift # .L2_44_inp_shift
+ vpermq \$0xcf,$PAD,$PAD
+ vmovdqa64 64(%r10),$reduc_mask # .L2_44_mask
+
+ vmovdqu64 0($ctx),${Dlo}{%k7}{z} # load hash value
+ vmovdqu64 40($ctx),${r2r1r0}{%k7}{z} # load keys
+ vmovdqu64 32($ctx),${r1r0s2}{%k7}{z}
+ vmovdqu64 24($ctx),${r0s2s1}{%k7}{z}
+
+ vmovdqa64 96(%r10),$reduc_rght # .L2_44_shift_rgt
+ vmovdqa64 128(%r10),$reduc_left # .L2_44_shift_lft
+
+ jmp .Loop_vpmadd52
+
+.align 32
+.Loop_vpmadd52:
+ vmovdqu32 0($inp),%x#$T0 # load input as ----3210
+ lea 16($inp),$inp
+
+ vpermd $T0,$inp_permd,$T0 # ----3210 -> --322110
+ vpsrlvq $inp_shift,$T0,$T0
+ vpandq $reduc_mask,$T0,$T0
+ vporq $PAD,$T0,$T0
+
+ vpaddq $T0,$Dlo,$Dlo # accumulate input
+
+ vpermq \$0,$Dlo,${H0}{%k7}{z} # smash hash value
+ vpermq \$0b01010101,$Dlo,${H1}{%k7}{z}
+ vpermq \$0b10101010,$Dlo,${H2}{%k7}{z}
+
+ vpxord $Dlo,$Dlo,$Dlo
+ vpxord $Dhi,$Dhi,$Dhi
+
+ vpmadd52luq $r2r1r0,$H0,$Dlo
+ vpmadd52huq $r2r1r0,$H0,$Dhi
+
+ vpmadd52luq $r1r0s2,$H1,$Dlo
+ vpmadd52huq $r1r0s2,$H1,$Dhi
+
+ vpmadd52luq $r0s2s1,$H2,$Dlo
+ vpmadd52huq $r0s2s1,$H2,$Dhi
+
+ vpsrlvq $reduc_rght,$Dlo,$T0 # 0 in topmost qword
+ vpsllvq $reduc_left,$Dhi,$Dhi # 0 in topmost qword
+ vpandq $reduc_mask,$Dlo,$Dlo
+
+ vpaddq $T0,$Dhi,$Dhi
+
+ vpermq \$0b10010011,$Dhi,$Dhi # 0 in lowest qword
+
+ vpaddq $Dhi,$Dlo,$Dlo # note topmost qword :-)
+
+ vpsrlvq $reduc_rght,$Dlo,$T0 # 0 in topmost word
+ vpandq $reduc_mask,$Dlo,$Dlo
+
+ vpermq \$0b10010011,$T0,$T0
+
+ vpaddq $T0,$Dlo,$Dlo
+
+ vpermq \$0b10010011,$Dlo,${T0}{%k1}{z}
+
+ vpaddq $T0,$Dlo,$Dlo
+ vpsllq \$2,$T0,$T0
+
+ vpaddq $T0,$Dlo,$Dlo
+
+ dec %rax # len-=16
+ jnz .Loop_vpmadd52
+
+ vmovdqu64 $Dlo,0($ctx){%k7} # store hash value
+
+ test $len,$len
+ jnz .Lblocks_vpmadd52_4x
+
+.Lno_data_vpmadd52:
+ RET
+.size poly1305_blocks_vpmadd52,.-poly1305_blocks_vpmadd52
+___
+}
+{
+########################################################################
+# As implied by its name 4x subroutine processes 4 blocks in parallel
+# (but handles even 4*n+2 blocks lengths). It takes up to 4th key power
+# and is handled in 256-bit %ymm registers.
+
+my ($H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2) = map("%ymm$_",(0..5,16,17));
+my ($D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi) = map("%ymm$_",(18..23));
+my ($T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD) = map("%ymm$_",(24..31));
+
+$code.=<<___;
+.type poly1305_blocks_vpmadd52_4x,\@function,4
+.align 32
+poly1305_blocks_vpmadd52_4x:
+ shr \$4,$len
+ jz .Lno_data_vpmadd52_4x # too short
+
+ shl \$40,$padbit
+ mov 64($ctx),%r8 # peek on power of the key
+
+.Lblocks_vpmadd52_4x:
+ vpbroadcastq $padbit,$PAD
+
+ vmovdqa64 .Lx_mask44(%rip),$mask44
+ mov \$5,%eax
+ vmovdqa64 .Lx_mask42(%rip),$mask42
+ kmovw %eax,%k1 # used in 2x path
+
+ test %r8,%r8 # is power value impossible?
+ js .Linit_vpmadd52 # if it is, then init R[4]
+
+ vmovq 0($ctx),%x#$H0 # load current hash value
+ vmovq 8($ctx),%x#$H1
+ vmovq 16($ctx),%x#$H2
+
+ test \$3,$len # is length 4*n+2?
+ jnz .Lblocks_vpmadd52_2x_do
+
+.Lblocks_vpmadd52_4x_do:
+ vpbroadcastq 64($ctx),$R0 # load 4th power of the key
+ vpbroadcastq 96($ctx),$R1
+ vpbroadcastq 128($ctx),$R2
+ vpbroadcastq 160($ctx),$S1
+
+.Lblocks_vpmadd52_4x_key_loaded:
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S2,$S2
+
+ test \$7,$len # is len 8*n?
+ jz .Lblocks_vpmadd52_8x
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*2($inp),$T3
+ lea 16*4($inp),$inp
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+
+ # at this point 64-bit lanes are ordered as 3-1-2-0
+
+ vpsrlq \$24,$T3,$T2 # splat the data
+ vporq $PAD,$T2,$T2
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ sub \$4,$len
+ jz .Ltail_vpmadd52_4x
+ jmp .Loop_vpmadd52_4x
+ ud2
+
+.align 32
+.Linit_vpmadd52:
+ vmovq 24($ctx),%x#$S1 # load key
+ vmovq 56($ctx),%x#$H2
+ vmovq 32($ctx),%x#$S2
+ vmovq 40($ctx),%x#$R0
+ vmovq 48($ctx),%x#$R1
+
+ vmovdqa $R0,$H0
+ vmovdqa $R1,$H1
+ vmovdqa $H2,$R2
+
+ mov \$2,%eax
+
+.Lmul_init_vpmadd52:
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ dec %eax
+ jz .Ldone_init_vpmadd52
+
+ vpunpcklqdq $R1,$H1,$R1 # 1,2
+ vpbroadcastq %x#$H1,%x#$H1 # 2,2
+ vpunpcklqdq $R2,$H2,$R2
+ vpbroadcastq %x#$H2,%x#$H2
+ vpunpcklqdq $R0,$H0,$R0
+ vpbroadcastq %x#$H0,%x#$H0
+
+ vpsllq \$2,$R1,$S1 # S1 = R1*5*4
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R1,$S1,$S1
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S1,$S1
+ vpsllq \$2,$S2,$S2
+
+ jmp .Lmul_init_vpmadd52
+ ud2
+
+.align 32
+.Ldone_init_vpmadd52:
+ vinserti128 \$1,%x#$R1,$H1,$R1 # 1,2,3,4
+ vinserti128 \$1,%x#$R2,$H2,$R2
+ vinserti128 \$1,%x#$R0,$H0,$R0
+
+ vpermq \$0b11011000,$R1,$R1 # 1,3,2,4
+ vpermq \$0b11011000,$R2,$R2
+ vpermq \$0b11011000,$R0,$R0
+
+ vpsllq \$2,$R1,$S1 # S1 = R1*5*4
+ vpaddq $R1,$S1,$S1
+ vpsllq \$2,$S1,$S1
+
+ vmovq 0($ctx),%x#$H0 # load current hash value
+ vmovq 8($ctx),%x#$H1
+ vmovq 16($ctx),%x#$H2
+
+ test \$3,$len # is length 4*n+2?
+ jnz .Ldone_init_vpmadd52_2x
+
+ vmovdqu64 $R0,64($ctx) # save key powers
+ vpbroadcastq %x#$R0,$R0 # broadcast 4th power
+ vmovdqu64 $R1,96($ctx)
+ vpbroadcastq %x#$R1,$R1
+ vmovdqu64 $R2,128($ctx)
+ vpbroadcastq %x#$R2,$R2
+ vmovdqu64 $S1,160($ctx)
+ vpbroadcastq %x#$S1,$S1
+
+ jmp .Lblocks_vpmadd52_4x_key_loaded
+ ud2
+
+.align 32
+.Ldone_init_vpmadd52_2x:
+ vmovdqu64 $R0,64($ctx) # save key powers
+ vpsrldq \$8,$R0,$R0 # 0-1-0-2
+ vmovdqu64 $R1,96($ctx)
+ vpsrldq \$8,$R1,$R1
+ vmovdqu64 $R2,128($ctx)
+ vpsrldq \$8,$R2,$R2
+ vmovdqu64 $S1,160($ctx)
+ vpsrldq \$8,$S1,$S1
+ jmp .Lblocks_vpmadd52_2x_key_loaded
+ ud2
+
+.align 32
+.Lblocks_vpmadd52_2x_do:
+ vmovdqu64 128+8($ctx),${R2}{%k1}{z}# load 2nd and 1st key powers
+ vmovdqu64 160+8($ctx),${S1}{%k1}{z}
+ vmovdqu64 64+8($ctx),${R0}{%k1}{z}
+ vmovdqu64 96+8($ctx),${R1}{%k1}{z}
+
+.Lblocks_vpmadd52_2x_key_loaded:
+ vmovdqu64 16*0($inp),$T2 # load data
+ vpxorq $T3,$T3,$T3
+ lea 16*2($inp),$inp
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+
+ # at this point 64-bit lanes are ordered as x-1-x-0
+
+ vpsrlq \$24,$T3,$T2 # splat the data
+ vporq $PAD,$T2,$T2
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ jmp .Ltail_vpmadd52_2x
+ ud2
+
+.align 32
+.Loop_vpmadd52_4x:
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*2($inp),$T3
+ lea 16*4($inp),$inp
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction (interleaved with data splat)
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpsrlq \$24,$T3,$T2
+ vporq $PAD,$T2,$T2
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ sub \$4,$len # len-=64
+ jnz .Loop_vpmadd52_4x
+
+.Ltail_vpmadd52_4x:
+ vmovdqu64 128($ctx),$R2 # load all key powers
+ vmovdqu64 160($ctx),$S1
+ vmovdqu64 64($ctx),$R0
+ vmovdqu64 96($ctx),$R1
+
+.Ltail_vpmadd52_2x:
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S2,$S2
+
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # horizontal addition
+
+ mov \$1,%eax
+ kmovw %eax,%k1
+ vpsrldq \$8,$D0lo,$T0
+ vpsrldq \$8,$D0hi,$H0
+ vpsrldq \$8,$D1lo,$T1
+ vpsrldq \$8,$D1hi,$H1
+ vpaddq $T0,$D0lo,$D0lo
+ vpaddq $H0,$D0hi,$D0hi
+ vpsrldq \$8,$D2lo,$T2
+ vpsrldq \$8,$D2hi,$H2
+ vpaddq $T1,$D1lo,$D1lo
+ vpaddq $H1,$D1hi,$D1hi
+ vpermq \$0x2,$D0lo,$T0
+ vpermq \$0x2,$D0hi,$H0
+ vpaddq $T2,$D2lo,$D2lo
+ vpaddq $H2,$D2hi,$D2hi
+
+ vpermq \$0x2,$D1lo,$T1
+ vpermq \$0x2,$D1hi,$H1
+ vpaddq $T0,$D0lo,${D0lo}{%k1}{z}
+ vpaddq $H0,$D0hi,${D0hi}{%k1}{z}
+ vpermq \$0x2,$D2lo,$T2
+ vpermq \$0x2,$D2hi,$H2
+ vpaddq $T1,$D1lo,${D1lo}{%k1}{z}
+ vpaddq $H1,$D1hi,${D1hi}{%k1}{z}
+ vpaddq $T2,$D2lo,${D2lo}{%k1}{z}
+ vpaddq $H2,$D2hi,${D2hi}{%k1}{z}
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+ # at this point $len is
+ # either 4*n+2 or 0...
+ sub \$2,$len # len-=32
+ ja .Lblocks_vpmadd52_4x_do
+
+ vmovq %x#$H0,0($ctx)
+ vmovq %x#$H1,8($ctx)
+ vmovq %x#$H2,16($ctx)
+ vzeroall
+
+.Lno_data_vpmadd52_4x:
+ RET
+.size poly1305_blocks_vpmadd52_4x,.-poly1305_blocks_vpmadd52_4x
+___
+}
+{
+########################################################################
+# As implied by its name 8x subroutine processes 8 blocks in parallel...
+# This is intermediate version, as it's used only in cases when input
+# length is either 8*n, 8*n+1 or 8*n+2...
+
+my ($H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2) = map("%ymm$_",(0..5,16,17));
+my ($D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi) = map("%ymm$_",(18..23));
+my ($T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD) = map("%ymm$_",(24..31));
+my ($RR0,$RR1,$RR2,$SS1,$SS2) = map("%ymm$_",(6..10));
+
+$code.=<<___;
+.type poly1305_blocks_vpmadd52_8x,\@function,4
+.align 32
+poly1305_blocks_vpmadd52_8x:
+ shr \$4,$len
+ jz .Lno_data_vpmadd52_8x # too short
+
+ shl \$40,$padbit
+ mov 64($ctx),%r8 # peek on power of the key
+
+ vmovdqa64 .Lx_mask44(%rip),$mask44
+ vmovdqa64 .Lx_mask42(%rip),$mask42
+
+ test %r8,%r8 # is power value impossible?
+ js .Linit_vpmadd52 # if it is, then init R[4]
+
+ vmovq 0($ctx),%x#$H0 # load current hash value
+ vmovq 8($ctx),%x#$H1
+ vmovq 16($ctx),%x#$H2
+
+.Lblocks_vpmadd52_8x:
+ ################################################################
+ # fist we calculate more key powers
+
+ vmovdqu64 128($ctx),$R2 # load 1-3-2-4 powers
+ vmovdqu64 160($ctx),$S1
+ vmovdqu64 64($ctx),$R0
+ vmovdqu64 96($ctx),$R1
+
+ vpsllq \$2,$R2,$S2 # S2 = R2*5*4
+ vpaddq $R2,$S2,$S2
+ vpsllq \$2,$S2,$S2
+
+ vpbroadcastq %x#$R2,$RR2 # broadcast 4th power
+ vpbroadcastq %x#$R0,$RR0
+ vpbroadcastq %x#$R1,$RR1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $RR2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $RR2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $RR2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $RR2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $RR2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $RR2,$R0,$D2hi
+
+ vpmadd52luq $RR0,$R0,$D0lo
+ vpmadd52huq $RR0,$R0,$D0hi
+ vpmadd52luq $RR0,$R1,$D1lo
+ vpmadd52huq $RR0,$R1,$D1hi
+ vpmadd52luq $RR0,$R2,$D2lo
+ vpmadd52huq $RR0,$R2,$D2hi
+
+ vpmadd52luq $RR1,$S2,$D0lo
+ vpmadd52huq $RR1,$S2,$D0hi
+ vpmadd52luq $RR1,$R0,$D1lo
+ vpmadd52huq $RR1,$R0,$D1hi
+ vpmadd52luq $RR1,$R1,$D2lo
+ vpmadd52huq $RR1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$RR0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$RR1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$RR2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$RR0,$RR0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$RR0,$RR0
+
+ vpsrlq \$44,$RR0,$tmp # additional step
+ vpandq $mask44,$RR0,$RR0
+
+ vpaddq $tmp,$RR1,$RR1
+
+ ################################################################
+ # At this point Rx holds 1324 powers, RRx - 5768, and the goal
+ # is 15263748, which reflects how data is loaded...
+
+ vpunpcklqdq $R2,$RR2,$T2 # 3748
+ vpunpckhqdq $R2,$RR2,$R2 # 1526
+ vpunpcklqdq $R0,$RR0,$T0
+ vpunpckhqdq $R0,$RR0,$R0
+ vpunpcklqdq $R1,$RR1,$T1
+ vpunpckhqdq $R1,$RR1,$R1
+___
+######## switch to %zmm
+map(s/%y/%z/, $H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2);
+map(s/%y/%z/, $D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi);
+map(s/%y/%z/, $T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD);
+map(s/%y/%z/, $RR0,$RR1,$RR2,$SS1,$SS2);
+
+$code.=<<___;
+ vshufi64x2 \$0x44,$R2,$T2,$RR2 # 15263748
+ vshufi64x2 \$0x44,$R0,$T0,$RR0
+ vshufi64x2 \$0x44,$R1,$T1,$RR1
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*4($inp),$T3
+ lea 16*8($inp),$inp
+
+ vpsllq \$2,$RR2,$SS2 # S2 = R2*5*4
+ vpsllq \$2,$RR1,$SS1 # S1 = R1*5*4
+ vpaddq $RR2,$SS2,$SS2
+ vpaddq $RR1,$SS1,$SS1
+ vpsllq \$2,$SS2,$SS2
+ vpsllq \$2,$SS1,$SS1
+
+ vpbroadcastq $padbit,$PAD
+ vpbroadcastq %x#$mask44,$mask44
+ vpbroadcastq %x#$mask42,$mask42
+
+ vpbroadcastq %x#$SS1,$S1 # broadcast 8th power
+ vpbroadcastq %x#$SS2,$S2
+ vpbroadcastq %x#$RR0,$R0
+ vpbroadcastq %x#$RR1,$R1
+ vpbroadcastq %x#$RR2,$R2
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+
+ # at this point 64-bit lanes are ordered as 73625140
+
+ vpsrlq \$24,$T3,$T2 # splat the data
+ vporq $PAD,$T2,$T2
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ sub \$8,$len
+ jz .Ltail_vpmadd52_8x
+ jmp .Loop_vpmadd52_8x
+
+.align 32
+.Loop_vpmadd52_8x:
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$S1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$S1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$S2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$S2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$R0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$R0,$D2hi
+
+ vmovdqu64 16*0($inp),$T2 # load data
+ vmovdqu64 16*4($inp),$T3
+ lea 16*8($inp),$inp
+ vpmadd52luq $H0,$R0,$D0lo
+ vpmadd52huq $H0,$R0,$D0hi
+ vpmadd52luq $H0,$R1,$D1lo
+ vpmadd52huq $H0,$R1,$D1hi
+ vpmadd52luq $H0,$R2,$D2lo
+ vpmadd52huq $H0,$R2,$D2hi
+
+ vpunpcklqdq $T3,$T2,$T1 # transpose data
+ vpunpckhqdq $T3,$T2,$T3
+ vpmadd52luq $H1,$S2,$D0lo
+ vpmadd52huq $H1,$S2,$D0hi
+ vpmadd52luq $H1,$R0,$D1lo
+ vpmadd52huq $H1,$R0,$D1hi
+ vpmadd52luq $H1,$R1,$D2lo
+ vpmadd52huq $H1,$R1,$D2hi
+
+ ################################################################
+ # partial reduction (interleaved with data splat)
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpsrlq \$24,$T3,$T2
+ vporq $PAD,$T2,$T2
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpandq $mask44,$T1,$T0
+ vpsrlq \$44,$T1,$T1
+ vpsllq \$20,$T3,$T3
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vporq $T3,$T1,$T1
+ vpandq $mask44,$T1,$T1
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ sub \$8,$len # len-=128
+ jnz .Loop_vpmadd52_8x
+
+.Ltail_vpmadd52_8x:
+ #vpaddq $T2,$H2,$H2 # accumulate input
+ vpaddq $T0,$H0,$H0
+ vpaddq $T1,$H1,$H1
+
+ vpxorq $D0lo,$D0lo,$D0lo
+ vpmadd52luq $H2,$SS1,$D0lo
+ vpxorq $D0hi,$D0hi,$D0hi
+ vpmadd52huq $H2,$SS1,$D0hi
+ vpxorq $D1lo,$D1lo,$D1lo
+ vpmadd52luq $H2,$SS2,$D1lo
+ vpxorq $D1hi,$D1hi,$D1hi
+ vpmadd52huq $H2,$SS2,$D1hi
+ vpxorq $D2lo,$D2lo,$D2lo
+ vpmadd52luq $H2,$RR0,$D2lo
+ vpxorq $D2hi,$D2hi,$D2hi
+ vpmadd52huq $H2,$RR0,$D2hi
+
+ vpmadd52luq $H0,$RR0,$D0lo
+ vpmadd52huq $H0,$RR0,$D0hi
+ vpmadd52luq $H0,$RR1,$D1lo
+ vpmadd52huq $H0,$RR1,$D1hi
+ vpmadd52luq $H0,$RR2,$D2lo
+ vpmadd52huq $H0,$RR2,$D2hi
+
+ vpmadd52luq $H1,$SS2,$D0lo
+ vpmadd52huq $H1,$SS2,$D0hi
+ vpmadd52luq $H1,$RR0,$D1lo
+ vpmadd52huq $H1,$RR0,$D1hi
+ vpmadd52luq $H1,$RR1,$D2lo
+ vpmadd52huq $H1,$RR1,$D2hi
+
+ ################################################################
+ # horizontal addition
+
+ mov \$1,%eax
+ kmovw %eax,%k1
+ vpsrldq \$8,$D0lo,$T0
+ vpsrldq \$8,$D0hi,$H0
+ vpsrldq \$8,$D1lo,$T1
+ vpsrldq \$8,$D1hi,$H1
+ vpaddq $T0,$D0lo,$D0lo
+ vpaddq $H0,$D0hi,$D0hi
+ vpsrldq \$8,$D2lo,$T2
+ vpsrldq \$8,$D2hi,$H2
+ vpaddq $T1,$D1lo,$D1lo
+ vpaddq $H1,$D1hi,$D1hi
+ vpermq \$0x2,$D0lo,$T0
+ vpermq \$0x2,$D0hi,$H0
+ vpaddq $T2,$D2lo,$D2lo
+ vpaddq $H2,$D2hi,$D2hi
+
+ vpermq \$0x2,$D1lo,$T1
+ vpermq \$0x2,$D1hi,$H1
+ vpaddq $T0,$D0lo,$D0lo
+ vpaddq $H0,$D0hi,$D0hi
+ vpermq \$0x2,$D2lo,$T2
+ vpermq \$0x2,$D2hi,$H2
+ vpaddq $T1,$D1lo,$D1lo
+ vpaddq $H1,$D1hi,$D1hi
+ vextracti64x4 \$1,$D0lo,%y#$T0
+ vextracti64x4 \$1,$D0hi,%y#$H0
+ vpaddq $T2,$D2lo,$D2lo
+ vpaddq $H2,$D2hi,$D2hi
+
+ vextracti64x4 \$1,$D1lo,%y#$T1
+ vextracti64x4 \$1,$D1hi,%y#$H1
+ vextracti64x4 \$1,$D2lo,%y#$T2
+ vextracti64x4 \$1,$D2hi,%y#$H2
+___
+######## switch back to %ymm
+map(s/%z/%y/, $H0,$H1,$H2,$R0,$R1,$R2,$S1,$S2);
+map(s/%z/%y/, $D0lo,$D0hi,$D1lo,$D1hi,$D2lo,$D2hi);
+map(s/%z/%y/, $T0,$T1,$T2,$T3,$mask44,$mask42,$tmp,$PAD);
+
+$code.=<<___;
+ vpaddq $T0,$D0lo,${D0lo}{%k1}{z}
+ vpaddq $H0,$D0hi,${D0hi}{%k1}{z}
+ vpaddq $T1,$D1lo,${D1lo}{%k1}{z}
+ vpaddq $H1,$D1hi,${D1hi}{%k1}{z}
+ vpaddq $T2,$D2lo,${D2lo}{%k1}{z}
+ vpaddq $H2,$D2hi,${D2hi}{%k1}{z}
+
+ ################################################################
+ # partial reduction
+ vpsrlq \$44,$D0lo,$tmp
+ vpsllq \$8,$D0hi,$D0hi
+ vpandq $mask44,$D0lo,$H0
+ vpaddq $tmp,$D0hi,$D0hi
+
+ vpaddq $D0hi,$D1lo,$D1lo
+
+ vpsrlq \$44,$D1lo,$tmp
+ vpsllq \$8,$D1hi,$D1hi
+ vpandq $mask44,$D1lo,$H1
+ vpaddq $tmp,$D1hi,$D1hi
+
+ vpaddq $D1hi,$D2lo,$D2lo
+
+ vpsrlq \$42,$D2lo,$tmp
+ vpsllq \$10,$D2hi,$D2hi
+ vpandq $mask42,$D2lo,$H2
+ vpaddq $tmp,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+ vpsllq \$2,$D2hi,$D2hi
+
+ vpaddq $D2hi,$H0,$H0
+
+ vpsrlq \$44,$H0,$tmp # additional step
+ vpandq $mask44,$H0,$H0
+
+ vpaddq $tmp,$H1,$H1
+
+ ################################################################
+
+ vmovq %x#$H0,0($ctx)
+ vmovq %x#$H1,8($ctx)
+ vmovq %x#$H2,16($ctx)
+ vzeroall
+
+.Lno_data_vpmadd52_8x:
+ RET
+.size poly1305_blocks_vpmadd52_8x,.-poly1305_blocks_vpmadd52_8x
+___
+}
+$code.=<<___;
+.type poly1305_emit_base2_44,\@function,3
+.align 32
+poly1305_emit_base2_44:
+ mov 0($ctx),%r8 # load hash value
+ mov 8($ctx),%r9
+ mov 16($ctx),%r10
+
+ mov %r9,%rax
+ shr \$20,%r9
+ shl \$44,%rax
+ mov %r10,%rcx
+ shr \$40,%r10
+ shl \$24,%rcx
+
+ add %rax,%r8
+ adc %rcx,%r9
+ adc \$0,%r10
+
+ mov %r8,%rax
+ add \$5,%r8 # compare to modulus
+ mov %r9,%rcx
+ adc \$0,%r9
+ adc \$0,%r10
+ shr \$2,%r10 # did 130-bit value overflow?
+ cmovnz %r8,%rax
+ cmovnz %r9,%rcx
+
+ add 0($nonce),%rax # accumulate nonce
+ adc 8($nonce),%rcx
+ mov %rax,0($mac) # write result
+ mov %rcx,8($mac)
+
+ RET
+.size poly1305_emit_base2_44,.-poly1305_emit_base2_44
+___
+} } }
+}
+
+if (!$kernel)
+{ # chacha20-poly1305 helpers
+my ($out,$inp,$otp,$len)=$win64 ? ("%rcx","%rdx","%r8", "%r9") : # Win64 order
+ ("%rdi","%rsi","%rdx","%rcx"); # Unix order
+$code.=<<___;
+.globl xor128_encrypt_n_pad
+.type xor128_encrypt_n_pad,\@abi-omnipotent
+.align 16
+xor128_encrypt_n_pad:
+ sub $otp,$inp
+ sub $otp,$out
+ mov $len,%r10 # put len aside
+ shr \$4,$len # len / 16
+ jz .Ltail_enc
+ nop
+.Loop_enc_xmm:
+ movdqu ($inp,$otp),%xmm0
+ pxor ($otp),%xmm0
+ movdqu %xmm0,($out,$otp)
+ movdqa %xmm0,($otp)
+ lea 16($otp),$otp
+ dec $len
+ jnz .Loop_enc_xmm
+
+ and \$15,%r10 # len % 16
+ jz .Ldone_enc
+
+.Ltail_enc:
+ mov \$16,$len
+ sub %r10,$len
+ xor %eax,%eax
+.Loop_enc_byte:
+ mov ($inp,$otp),%al
+ xor ($otp),%al
+ mov %al,($out,$otp)
+ mov %al,($otp)
+ lea 1($otp),$otp
+ dec %r10
+ jnz .Loop_enc_byte
+
+ xor %eax,%eax
+.Loop_enc_pad:
+ mov %al,($otp)
+ lea 1($otp),$otp
+ dec $len
+ jnz .Loop_enc_pad
+
+.Ldone_enc:
+ mov $otp,%rax
+ RET
+.size xor128_encrypt_n_pad,.-xor128_encrypt_n_pad
+
+.globl xor128_decrypt_n_pad
+.type xor128_decrypt_n_pad,\@abi-omnipotent
+.align 16
+xor128_decrypt_n_pad:
+ sub $otp,$inp
+ sub $otp,$out
+ mov $len,%r10 # put len aside
+ shr \$4,$len # len / 16
+ jz .Ltail_dec
+ nop
+.Loop_dec_xmm:
+ movdqu ($inp,$otp),%xmm0
+ movdqa ($otp),%xmm1
+ pxor %xmm0,%xmm1
+ movdqu %xmm1,($out,$otp)
+ movdqa %xmm0,($otp)
+ lea 16($otp),$otp
+ dec $len
+ jnz .Loop_dec_xmm
+
+ pxor %xmm1,%xmm1
+ and \$15,%r10 # len % 16
+ jz .Ldone_dec
+
+.Ltail_dec:
+ mov \$16,$len
+ sub %r10,$len
+ xor %eax,%eax
+ xor %r11d,%r11d
+.Loop_dec_byte:
+ mov ($inp,$otp),%r11b
+ mov ($otp),%al
+ xor %r11b,%al
+ mov %al,($out,$otp)
+ mov %r11b,($otp)
+ lea 1($otp),$otp
+ dec %r10
+ jnz .Loop_dec_byte
+
+ xor %eax,%eax
+.Loop_dec_pad:
+ mov %al,($otp)
+ lea 1($otp),$otp
+ dec $len
+ jnz .Loop_dec_pad
+
+.Ldone_dec:
+ mov $otp,%rax
+ RET
+.size xor128_decrypt_n_pad,.-xor128_decrypt_n_pad
+___
+}
+
+# EXCEPTION_DISPOSITION handler (EXCEPTION_RECORD *rec,ULONG64 frame,
+# CONTEXT *context,DISPATCHER_CONTEXT *disp)
+if ($win64) {
+$rec="%rcx";
+$frame="%rdx";
+$context="%r8";
+$disp="%r9";
+
+$code.=<<___;
+.extern __imp_RtlVirtualUnwind
+.type se_handler,\@abi-omnipotent
+.align 16
+se_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 120($context),%rax # pull context->Rax
+ mov 248($context),%rbx # pull context->Rip
+
+ mov 8($disp),%rsi # disp->ImageBase
+ mov 56($disp),%r11 # disp->HandlerData
+
+ mov 0(%r11),%r10d # HandlerData[0]
+ lea (%rsi,%r10),%r10 # prologue label
+ cmp %r10,%rbx # context->Rip<.Lprologue
+ jb .Lcommon_seh_tail
+
+ mov 152($context),%rax # pull context->Rsp
+
+ mov 4(%r11),%r10d # HandlerData[1]
+ lea (%rsi,%r10),%r10 # epilogue label
+ cmp %r10,%rbx # context->Rip>=.Lepilogue
+ jae .Lcommon_seh_tail
+
+ lea 48(%rax),%rax
+
+ mov -8(%rax),%rbx
+ mov -16(%rax),%rbp
+ mov -24(%rax),%r12
+ mov -32(%rax),%r13
+ mov -40(%rax),%r14
+ mov -48(%rax),%r15
+ mov %rbx,144($context) # restore context->Rbx
+ mov %rbp,160($context) # restore context->Rbp
+ mov %r12,216($context) # restore context->R12
+ mov %r13,224($context) # restore context->R13
+ mov %r14,232($context) # restore context->R14
+ mov %r15,240($context) # restore context->R14
+
+ jmp .Lcommon_seh_tail
+.size se_handler,.-se_handler
+
+.type avx_handler,\@abi-omnipotent
+.align 16
+avx_handler:
+ push %rsi
+ push %rdi
+ push %rbx
+ push %rbp
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+ pushfq
+ sub \$64,%rsp
+
+ mov 120($context),%rax # pull context->Rax
+ mov 248($context),%rbx # pull context->Rip
+
+ mov 8($disp),%rsi # disp->ImageBase
+ mov 56($disp),%r11 # disp->HandlerData
+
+ mov 0(%r11),%r10d # HandlerData[0]
+ lea (%rsi,%r10),%r10 # prologue label
+ cmp %r10,%rbx # context->Rip<prologue label
+ jb .Lcommon_seh_tail
+
+ mov 152($context),%rax # pull context->Rsp
+
+ mov 4(%r11),%r10d # HandlerData[1]
+ lea (%rsi,%r10),%r10 # epilogue label
+ cmp %r10,%rbx # context->Rip>=epilogue label
+ jae .Lcommon_seh_tail
+
+ mov 208($context),%rax # pull context->R11
+
+ lea 0x50(%rax),%rsi
+ lea 0xf8(%rax),%rax
+ lea 512($context),%rdi # &context.Xmm6
+ mov \$20,%ecx
+ .long 0xa548f3fc # cld; rep movsq
+
+.Lcommon_seh_tail:
+ mov 8(%rax),%rdi
+ mov 16(%rax),%rsi
+ mov %rax,152($context) # restore context->Rsp
+ mov %rsi,168($context) # restore context->Rsi
+ mov %rdi,176($context) # restore context->Rdi
+
+ mov 40($disp),%rdi # disp->ContextRecord
+ mov $context,%rsi # context
+ mov \$154,%ecx # sizeof(CONTEXT)
+ .long 0xa548f3fc # cld; rep movsq
+
+ mov $disp,%rsi
+ xor %ecx,%ecx # arg1, UNW_FLAG_NHANDLER
+ mov 8(%rsi),%rdx # arg2, disp->ImageBase
+ mov 0(%rsi),%r8 # arg3, disp->ControlPc
+ mov 16(%rsi),%r9 # arg4, disp->FunctionEntry
+ mov 40(%rsi),%r10 # disp->ContextRecord
+ lea 56(%rsi),%r11 # &disp->HandlerData
+ lea 24(%rsi),%r12 # &disp->EstablisherFrame
+ mov %r10,32(%rsp) # arg5
+ mov %r11,40(%rsp) # arg6
+ mov %r12,48(%rsp) # arg7
+ mov %rcx,56(%rsp) # arg8, (NULL)
+ call *__imp_RtlVirtualUnwind(%rip)
+
+ mov \$1,%eax # ExceptionContinueSearch
+ add \$64,%rsp
+ popfq
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbp
+ pop %rbx
+ pop %rdi
+ pop %rsi
+ RET
+.size avx_handler,.-avx_handler
+
+.section .pdata
+.align 4
+ .rva .LSEH_begin_poly1305_init_x86_64
+ .rva .LSEH_end_poly1305_init_x86_64
+ .rva .LSEH_info_poly1305_init_x86_64
+
+ .rva .LSEH_begin_poly1305_blocks_x86_64
+ .rva .LSEH_end_poly1305_blocks_x86_64
+ .rva .LSEH_info_poly1305_blocks_x86_64
+
+ .rva .LSEH_begin_poly1305_emit_x86_64
+ .rva .LSEH_end_poly1305_emit_x86_64
+ .rva .LSEH_info_poly1305_emit_x86_64
+___
+$code.=<<___ if ($avx);
+ .rva .LSEH_begin_poly1305_blocks_avx
+ .rva .Lbase2_64_avx
+ .rva .LSEH_info_poly1305_blocks_avx_1
+
+ .rva .Lbase2_64_avx
+ .rva .Leven_avx
+ .rva .LSEH_info_poly1305_blocks_avx_2
+
+ .rva .Leven_avx
+ .rva .LSEH_end_poly1305_blocks_avx
+ .rva .LSEH_info_poly1305_blocks_avx_3
+
+ .rva .LSEH_begin_poly1305_emit_avx
+ .rva .LSEH_end_poly1305_emit_avx
+ .rva .LSEH_info_poly1305_emit_avx
+___
+$code.=<<___ if ($avx>1);
+ .rva .LSEH_begin_poly1305_blocks_avx2
+ .rva .Lbase2_64_avx2
+ .rva .LSEH_info_poly1305_blocks_avx2_1
+
+ .rva .Lbase2_64_avx2
+ .rva .Leven_avx2
+ .rva .LSEH_info_poly1305_blocks_avx2_2
+
+ .rva .Leven_avx2
+ .rva .LSEH_end_poly1305_blocks_avx2
+ .rva .LSEH_info_poly1305_blocks_avx2_3
+___
+$code.=<<___ if ($avx>2);
+ .rva .LSEH_begin_poly1305_blocks_avx512
+ .rva .LSEH_end_poly1305_blocks_avx512
+ .rva .LSEH_info_poly1305_blocks_avx512
+___
+$code.=<<___;
+.section .xdata
+.align 8
+.LSEH_info_poly1305_init_x86_64:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .LSEH_begin_poly1305_init_x86_64,.LSEH_begin_poly1305_init_x86_64
+
+.LSEH_info_poly1305_blocks_x86_64:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lblocks_body,.Lblocks_epilogue
+
+.LSEH_info_poly1305_emit_x86_64:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .LSEH_begin_poly1305_emit_x86_64,.LSEH_begin_poly1305_emit_x86_64
+___
+$code.=<<___ if ($avx);
+.LSEH_info_poly1305_blocks_avx_1:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lblocks_avx_body,.Lblocks_avx_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx_2:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lbase2_64_avx_body,.Lbase2_64_avx_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx_3:
+ .byte 9,0,0,0
+ .rva avx_handler
+ .rva .Ldo_avx_body,.Ldo_avx_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_emit_avx:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .LSEH_begin_poly1305_emit_avx,.LSEH_begin_poly1305_emit_avx
+___
+$code.=<<___ if ($avx>1);
+.LSEH_info_poly1305_blocks_avx2_1:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lblocks_avx2_body,.Lblocks_avx2_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx2_2:
+ .byte 9,0,0,0
+ .rva se_handler
+ .rva .Lbase2_64_avx2_body,.Lbase2_64_avx2_epilogue # HandlerData[]
+
+.LSEH_info_poly1305_blocks_avx2_3:
+ .byte 9,0,0,0
+ .rva avx_handler
+ .rva .Ldo_avx2_body,.Ldo_avx2_epilogue # HandlerData[]
+___
+$code.=<<___ if ($avx>2);
+.LSEH_info_poly1305_blocks_avx512:
+ .byte 9,0,0,0
+ .rva avx_handler
+ .rva .Ldo_avx512_body,.Ldo_avx512_epilogue # HandlerData[]
+___
+}
+
+open SELF,$0;
+while(<SELF>) {
+ next if (/^#!/);
+ last if (!s/^#/\/\// and !/^$/);
+ print;
+}
+close SELF;
+
+foreach (split('\n',$code)) {
+ s/\`([^\`]*)\`/eval($1)/ge;
+ s/%r([a-z]+)#d/%e$1/g;
+ s/%r([0-9]+)#d/%r$1d/g;
+ s/%x#%[yz]/%x/g or s/%y#%z/%y/g or s/%z#%[yz]/%z/g;
+
+ if ($kernel) {
+ s/(^\.type.*),[0-9]+$/\1/;
+ s/(^\.type.*),\@abi-omnipotent+$/\1,\@function/;
+ next if /^\.cfi.*/;
+ }
+
+ print $_,"\n";
+}
+close STDOUT;
diff --git a/arch/x86/crypto/poly1305_glue.c b/arch/x86/crypto/poly1305_glue.c
new file mode 100644
index 000000000000..1dfb8af48a3c
--- /dev/null
+++ b/arch/x86/crypto/poly1305_glue.c
@@ -0,0 +1,290 @@
+// SPDX-License-Identifier: GPL-2.0 OR MIT
+/*
+ * Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/poly1305.h>
+#include <crypto/internal/simd.h>
+#include <linux/crypto.h>
+#include <linux/jump_label.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sizes.h>
+#include <asm/intel-family.h>
+#include <asm/simd.h>
+
+asmlinkage void poly1305_init_x86_64(void *ctx,
+ const u8 key[POLY1305_BLOCK_SIZE]);
+asmlinkage void poly1305_blocks_x86_64(void *ctx, const u8 *inp,
+ const size_t len, const u32 padbit);
+asmlinkage void poly1305_emit_x86_64(void *ctx, u8 mac[POLY1305_DIGEST_SIZE],
+ const u32 nonce[4]);
+asmlinkage void poly1305_emit_avx(void *ctx, u8 mac[POLY1305_DIGEST_SIZE],
+ const u32 nonce[4]);
+asmlinkage void poly1305_blocks_avx(void *ctx, const u8 *inp, const size_t len,
+ const u32 padbit);
+asmlinkage void poly1305_blocks_avx2(void *ctx, const u8 *inp, const size_t len,
+ const u32 padbit);
+asmlinkage void poly1305_blocks_avx512(void *ctx, const u8 *inp,
+ const size_t len, const u32 padbit);
+
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(poly1305_use_avx);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(poly1305_use_avx2);
+static __ro_after_init DEFINE_STATIC_KEY_FALSE(poly1305_use_avx512);
+
+struct poly1305_arch_internal {
+ union {
+ struct {
+ u32 h[5];
+ u32 is_base2_26;
+ };
+ u64 hs[3];
+ };
+ u64 r[2];
+ u64 pad;
+ struct { u32 r2, r1, r4, r3; } rn[9];
+};
+
+/* The AVX code uses base 2^26, while the scalar code uses base 2^64. If we hit
+ * the unfortunate situation of using AVX and then having to go back to scalar
+ * -- because the user is silly and has called the update function from two
+ * separate contexts -- then we need to convert back to the original base before
+ * proceeding. It is possible to reason that the initial reduction below is
+ * sufficient given the implementation invariants. However, for an avoidance of
+ * doubt and because this is not performance critical, we do the full reduction
+ * anyway. Z3 proof of below function: https://xn--4db.cc/ltPtHCKN/py
+ */
+static void convert_to_base2_64(void *ctx)
+{
+ struct poly1305_arch_internal *state = ctx;
+ u32 cy;
+
+ if (!state->is_base2_26)
+ return;
+
+ cy = state->h[0] >> 26; state->h[0] &= 0x3ffffff; state->h[1] += cy;
+ cy = state->h[1] >> 26; state->h[1] &= 0x3ffffff; state->h[2] += cy;
+ cy = state->h[2] >> 26; state->h[2] &= 0x3ffffff; state->h[3] += cy;
+ cy = state->h[3] >> 26; state->h[3] &= 0x3ffffff; state->h[4] += cy;
+ state->hs[0] = ((u64)state->h[2] << 52) | ((u64)state->h[1] << 26) | state->h[0];
+ state->hs[1] = ((u64)state->h[4] << 40) | ((u64)state->h[3] << 14) | (state->h[2] >> 12);
+ state->hs[2] = state->h[4] >> 24;
+#define ULT(a, b) ((a ^ ((a ^ b) | ((a - b) ^ b))) >> (sizeof(a) * 8 - 1))
+ cy = (state->hs[2] >> 2) + (state->hs[2] & ~3ULL);
+ state->hs[2] &= 3;
+ state->hs[0] += cy;
+ state->hs[1] += (cy = ULT(state->hs[0], cy));
+ state->hs[2] += ULT(state->hs[1], cy);
+#undef ULT
+ state->is_base2_26 = 0;
+}
+
+static void poly1305_simd_init(void *ctx, const u8 key[POLY1305_BLOCK_SIZE])
+{
+ poly1305_init_x86_64(ctx, key);
+}
+
+static void poly1305_simd_blocks(void *ctx, const u8 *inp, size_t len,
+ const u32 padbit)
+{
+ struct poly1305_arch_internal *state = ctx;
+
+ /* SIMD disables preemption, so relax after processing each page. */
+ BUILD_BUG_ON(SZ_4K < POLY1305_BLOCK_SIZE ||
+ SZ_4K % POLY1305_BLOCK_SIZE);
+
+ if (!static_branch_likely(&poly1305_use_avx) ||
+ (len < (POLY1305_BLOCK_SIZE * 18) && !state->is_base2_26) ||
+ !crypto_simd_usable()) {
+ convert_to_base2_64(ctx);
+ poly1305_blocks_x86_64(ctx, inp, len, padbit);
+ return;
+ }
+
+ do {
+ const size_t bytes = min_t(size_t, len, SZ_4K);
+
+ kernel_fpu_begin();
+ if (IS_ENABLED(CONFIG_AS_AVX512) && static_branch_likely(&poly1305_use_avx512))
+ poly1305_blocks_avx512(ctx, inp, bytes, padbit);
+ else if (static_branch_likely(&poly1305_use_avx2))
+ poly1305_blocks_avx2(ctx, inp, bytes, padbit);
+ else
+ poly1305_blocks_avx(ctx, inp, bytes, padbit);
+ kernel_fpu_end();
+
+ len -= bytes;
+ inp += bytes;
+ } while (len);
+}
+
+static void poly1305_simd_emit(void *ctx, u8 mac[POLY1305_DIGEST_SIZE],
+ const u32 nonce[4])
+{
+ if (!static_branch_likely(&poly1305_use_avx))
+ poly1305_emit_x86_64(ctx, mac, nonce);
+ else
+ poly1305_emit_avx(ctx, mac, nonce);
+}
+
+void poly1305_init_arch(struct poly1305_desc_ctx *dctx, const u8 key[POLY1305_KEY_SIZE])
+{
+ poly1305_simd_init(&dctx->h, key);
+ dctx->s[0] = get_unaligned_le32(&key[16]);
+ dctx->s[1] = get_unaligned_le32(&key[20]);
+ dctx->s[2] = get_unaligned_le32(&key[24]);
+ dctx->s[3] = get_unaligned_le32(&key[28]);
+ dctx->buflen = 0;
+ dctx->sset = true;
+}
+EXPORT_SYMBOL(poly1305_init_arch);
+
+static unsigned int crypto_poly1305_setdctxkey(struct poly1305_desc_ctx *dctx,
+ const u8 *inp, unsigned int len)
+{
+ unsigned int acc = 0;
+ if (unlikely(!dctx->sset)) {
+ if (!dctx->rset && len >= POLY1305_BLOCK_SIZE) {
+ poly1305_simd_init(&dctx->h, inp);
+ inp += POLY1305_BLOCK_SIZE;
+ len -= POLY1305_BLOCK_SIZE;
+ acc += POLY1305_BLOCK_SIZE;
+ dctx->rset = 1;
+ }
+ if (len >= POLY1305_BLOCK_SIZE) {
+ dctx->s[0] = get_unaligned_le32(&inp[0]);
+ dctx->s[1] = get_unaligned_le32(&inp[4]);
+ dctx->s[2] = get_unaligned_le32(&inp[8]);
+ dctx->s[3] = get_unaligned_le32(&inp[12]);
+ acc += POLY1305_BLOCK_SIZE;
+ dctx->sset = true;
+ }
+ }
+ return acc;
+}
+
+void poly1305_update_arch(struct poly1305_desc_ctx *dctx, const u8 *src,
+ unsigned int srclen)
+{
+ unsigned int bytes, used;
+
+ if (unlikely(dctx->buflen)) {
+ bytes = min(srclen, POLY1305_BLOCK_SIZE - dctx->buflen);
+ memcpy(dctx->buf + dctx->buflen, src, bytes);
+ src += bytes;
+ srclen -= bytes;
+ dctx->buflen += bytes;
+
+ if (dctx->buflen == POLY1305_BLOCK_SIZE) {
+ if (likely(!crypto_poly1305_setdctxkey(dctx, dctx->buf, POLY1305_BLOCK_SIZE)))
+ poly1305_simd_blocks(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 1);
+ dctx->buflen = 0;
+ }
+ }
+
+ if (likely(srclen >= POLY1305_BLOCK_SIZE)) {
+ bytes = round_down(srclen, POLY1305_BLOCK_SIZE);
+ srclen -= bytes;
+ used = crypto_poly1305_setdctxkey(dctx, src, bytes);
+ if (likely(bytes - used))
+ poly1305_simd_blocks(&dctx->h, src + used, bytes - used, 1);
+ src += bytes;
+ }
+
+ if (unlikely(srclen)) {
+ dctx->buflen = srclen;
+ memcpy(dctx->buf, src, srclen);
+ }
+}
+EXPORT_SYMBOL(poly1305_update_arch);
+
+void poly1305_final_arch(struct poly1305_desc_ctx *dctx, u8 *dst)
+{
+ if (unlikely(dctx->buflen)) {
+ dctx->buf[dctx->buflen++] = 1;
+ memset(dctx->buf + dctx->buflen, 0,
+ POLY1305_BLOCK_SIZE - dctx->buflen);
+ poly1305_simd_blocks(&dctx->h, dctx->buf, POLY1305_BLOCK_SIZE, 0);
+ }
+
+ poly1305_simd_emit(&dctx->h, dst, dctx->s);
+ memzero_explicit(dctx, sizeof(*dctx));
+}
+EXPORT_SYMBOL(poly1305_final_arch);
+
+static int crypto_poly1305_init(struct shash_desc *desc)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ *dctx = (struct poly1305_desc_ctx){};
+ return 0;
+}
+
+static int crypto_poly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ poly1305_update_arch(dctx, src, srclen);
+ return 0;
+}
+
+static int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
+{
+ struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ if (unlikely(!dctx->sset))
+ return -ENOKEY;
+
+ poly1305_final_arch(dctx, dst);
+ return 0;
+}
+
+static struct shash_alg alg = {
+ .digestsize = POLY1305_DIGEST_SIZE,
+ .init = crypto_poly1305_init,
+ .update = crypto_poly1305_update,
+ .final = crypto_poly1305_final,
+ .descsize = sizeof(struct poly1305_desc_ctx),
+ .base = {
+ .cra_name = "poly1305",
+ .cra_driver_name = "poly1305-simd",
+ .cra_priority = 300,
+ .cra_blocksize = POLY1305_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ },
+};
+
+static int __init poly1305_simd_mod_init(void)
+{
+ if (boot_cpu_has(X86_FEATURE_AVX) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL))
+ static_branch_enable(&poly1305_use_avx);
+ if (boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_AVX2) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL))
+ static_branch_enable(&poly1305_use_avx2);
+ if (IS_ENABLED(CONFIG_AS_AVX512) && boot_cpu_has(X86_FEATURE_AVX) &&
+ boot_cpu_has(X86_FEATURE_AVX2) && boot_cpu_has(X86_FEATURE_AVX512F) &&
+ cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM | XFEATURE_MASK_AVX512, NULL) &&
+ /* Skylake downclocks unacceptably much when using zmm, but later generations are fast. */
+ boot_cpu_data.x86_model != INTEL_FAM6_SKYLAKE_X)
+ static_branch_enable(&poly1305_use_avx512);
+ return IS_REACHABLE(CONFIG_CRYPTO_HASH) ? crypto_register_shash(&alg) : 0;
+}
+
+static void __exit poly1305_simd_mod_exit(void)
+{
+ if (IS_REACHABLE(CONFIG_CRYPTO_HASH))
+ crypto_unregister_shash(&alg);
+}
+
+module_init(poly1305_simd_mod_init);
+module_exit(poly1305_simd_mod_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");
+MODULE_DESCRIPTION("Poly1305 authenticator");
+MODULE_ALIAS_CRYPTO("poly1305");
+MODULE_ALIAS_CRYPTO("poly1305-simd");
diff --git a/arch/x86/crypto/polyval-clmulni_asm.S b/arch/x86/crypto/polyval-clmulni_asm.S
new file mode 100644
index 000000000000..a6ebe4e7dd2b
--- /dev/null
+++ b/arch/x86/crypto/polyval-clmulni_asm.S
@@ -0,0 +1,321 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright 2021 Google LLC
+ */
+/*
+ * This is an efficient implementation of POLYVAL using intel PCLMULQDQ-NI
+ * instructions. It works on 8 blocks at a time, by precomputing the first 8
+ * keys powers h^8, ..., h^1 in the POLYVAL finite field. This precomputation
+ * allows us to split finite field multiplication into two steps.
+ *
+ * In the first step, we consider h^i, m_i as normal polynomials of degree less
+ * than 128. We then compute p(x) = h^8m_0 + ... + h^1m_7 where multiplication
+ * is simply polynomial multiplication.
+ *
+ * In the second step, we compute the reduction of p(x) modulo the finite field
+ * modulus g(x) = x^128 + x^127 + x^126 + x^121 + 1.
+ *
+ * This two step process is equivalent to computing h^8m_0 + ... + h^1m_7 where
+ * multiplication is finite field multiplication. The advantage is that the
+ * two-step process only requires 1 finite field reduction for every 8
+ * polynomial multiplications. Further parallelism is gained by interleaving the
+ * multiplications and polynomial reductions.
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+
+#define STRIDE_BLOCKS 8
+
+#define GSTAR %xmm7
+#define PL %xmm8
+#define PH %xmm9
+#define TMP_XMM %xmm11
+#define LO %xmm12
+#define HI %xmm13
+#define MI %xmm14
+#define SUM %xmm15
+
+#define KEY_POWERS %rdi
+#define MSG %rsi
+#define BLOCKS_LEFT %rdx
+#define ACCUMULATOR %rcx
+#define TMP %rax
+
+.section .rodata.cst16.gstar, "aM", @progbits, 16
+.align 16
+
+.Lgstar:
+ .quad 0xc200000000000000, 0xc200000000000000
+
+.text
+
+/*
+ * Performs schoolbook1_iteration on two lists of 128-bit polynomials of length
+ * count pointed to by MSG and KEY_POWERS.
+ */
+.macro schoolbook1 count
+ .set i, 0
+ .rept (\count)
+ schoolbook1_iteration i 0
+ .set i, (i +1)
+ .endr
+.endm
+
+/*
+ * Computes the product of two 128-bit polynomials at the memory locations
+ * specified by (MSG + 16*i) and (KEY_POWERS + 16*i) and XORs the components of
+ * the 256-bit product into LO, MI, HI.
+ *
+ * Given:
+ * X = [X_1 : X_0]
+ * Y = [Y_1 : Y_0]
+ *
+ * We compute:
+ * LO += X_0 * Y_0
+ * MI += X_0 * Y_1 + X_1 * Y_0
+ * HI += X_1 * Y_1
+ *
+ * Later, the 256-bit result can be extracted as:
+ * [HI_1 : HI_0 + MI_1 : LO_1 + MI_0 : LO_0]
+ * This step is done when computing the polynomial reduction for efficiency
+ * reasons.
+ *
+ * If xor_sum == 1, then also XOR the value of SUM into m_0. This avoids an
+ * extra multiplication of SUM and h^8.
+ */
+.macro schoolbook1_iteration i xor_sum
+ movups (16*\i)(MSG), %xmm0
+ .if (\i == 0 && \xor_sum == 1)
+ pxor SUM, %xmm0
+ .endif
+ vpclmulqdq $0x01, (16*\i)(KEY_POWERS), %xmm0, %xmm2
+ vpclmulqdq $0x00, (16*\i)(KEY_POWERS), %xmm0, %xmm1
+ vpclmulqdq $0x10, (16*\i)(KEY_POWERS), %xmm0, %xmm3
+ vpclmulqdq $0x11, (16*\i)(KEY_POWERS), %xmm0, %xmm4
+ vpxor %xmm2, MI, MI
+ vpxor %xmm1, LO, LO
+ vpxor %xmm4, HI, HI
+ vpxor %xmm3, MI, MI
+.endm
+
+/*
+ * Performs the same computation as schoolbook1_iteration, except we expect the
+ * arguments to already be loaded into xmm0 and xmm1 and we set the result
+ * registers LO, MI, and HI directly rather than XOR'ing into them.
+ */
+.macro schoolbook1_noload
+ vpclmulqdq $0x01, %xmm0, %xmm1, MI
+ vpclmulqdq $0x10, %xmm0, %xmm1, %xmm2
+ vpclmulqdq $0x00, %xmm0, %xmm1, LO
+ vpclmulqdq $0x11, %xmm0, %xmm1, HI
+ vpxor %xmm2, MI, MI
+.endm
+
+/*
+ * Computes the 256-bit polynomial represented by LO, HI, MI. Stores
+ * the result in PL, PH.
+ * [PH : PL] = [HI_1 : HI_0 + MI_1 : LO_1 + MI_0 : LO_0]
+ */
+.macro schoolbook2
+ vpslldq $8, MI, PL
+ vpsrldq $8, MI, PH
+ pxor LO, PL
+ pxor HI, PH
+.endm
+
+/*
+ * Computes the 128-bit reduction of PH : PL. Stores the result in dest.
+ *
+ * This macro computes p(x) mod g(x) where p(x) is in montgomery form and g(x) =
+ * x^128 + x^127 + x^126 + x^121 + 1.
+ *
+ * We have a 256-bit polynomial PH : PL = P_3 : P_2 : P_1 : P_0 that is the
+ * product of two 128-bit polynomials in Montgomery form. We need to reduce it
+ * mod g(x). Also, since polynomials in Montgomery form have an "extra" factor
+ * of x^128, this product has two extra factors of x^128. To get it back into
+ * Montgomery form, we need to remove one of these factors by dividing by x^128.
+ *
+ * To accomplish both of these goals, we add multiples of g(x) that cancel out
+ * the low 128 bits P_1 : P_0, leaving just the high 128 bits. Since the low
+ * bits are zero, the polynomial division by x^128 can be done by right shifting.
+ *
+ * Since the only nonzero term in the low 64 bits of g(x) is the constant term,
+ * the multiple of g(x) needed to cancel out P_0 is P_0 * g(x). The CPU can
+ * only do 64x64 bit multiplications, so split P_0 * g(x) into x^128 * P_0 +
+ * x^64 * g*(x) * P_0 + P_0, where g*(x) is bits 64-127 of g(x). Adding this to
+ * the original polynomial gives P_3 : P_2 + P_0 + T_1 : P_1 + T_0 : 0, where T
+ * = T_1 : T_0 = g*(x) * P_0. Thus, bits 0-63 got "folded" into bits 64-191.
+ *
+ * Repeating this same process on the next 64 bits "folds" bits 64-127 into bits
+ * 128-255, giving the answer in bits 128-255. This time, we need to cancel P_1
+ * + T_0 in bits 64-127. The multiple of g(x) required is (P_1 + T_0) * g(x) *
+ * x^64. Adding this to our previous computation gives P_3 + P_1 + T_0 + V_1 :
+ * P_2 + P_0 + T_1 + V_0 : 0 : 0, where V = V_1 : V_0 = g*(x) * (P_1 + T_0).
+ *
+ * So our final computation is:
+ * T = T_1 : T_0 = g*(x) * P_0
+ * V = V_1 : V_0 = g*(x) * (P_1 + T_0)
+ * p(x) / x^{128} mod g(x) = P_3 + P_1 + T_0 + V_1 : P_2 + P_0 + T_1 + V_0
+ *
+ * The implementation below saves a XOR instruction by computing P_1 + T_0 : P_0
+ * + T_1 and XORing into dest, rather than separately XORing P_1 : P_0 and T_0 :
+ * T_1 into dest. This allows us to reuse P_1 + T_0 when computing V.
+ */
+.macro montgomery_reduction dest
+ vpclmulqdq $0x00, PL, GSTAR, TMP_XMM # TMP_XMM = T_1 : T_0 = P_0 * g*(x)
+ pshufd $0b01001110, TMP_XMM, TMP_XMM # TMP_XMM = T_0 : T_1
+ pxor PL, TMP_XMM # TMP_XMM = P_1 + T_0 : P_0 + T_1
+ pxor TMP_XMM, PH # PH = P_3 + P_1 + T_0 : P_2 + P_0 + T_1
+ pclmulqdq $0x11, GSTAR, TMP_XMM # TMP_XMM = V_1 : V_0 = V = [(P_1 + T_0) * g*(x)]
+ vpxor TMP_XMM, PH, \dest
+.endm
+
+/*
+ * Compute schoolbook multiplication for 8 blocks
+ * m_0h^8 + ... + m_7h^1
+ *
+ * If reduce is set, also computes the montgomery reduction of the
+ * previous full_stride call and XORs with the first message block.
+ * (m_0 + REDUCE(PL, PH))h^8 + ... + m_7h^1.
+ * I.e., the first multiplication uses m_0 + REDUCE(PL, PH) instead of m_0.
+ */
+.macro full_stride reduce
+ pxor LO, LO
+ pxor HI, HI
+ pxor MI, MI
+
+ schoolbook1_iteration 7 0
+ .if \reduce
+ vpclmulqdq $0x00, PL, GSTAR, TMP_XMM
+ .endif
+
+ schoolbook1_iteration 6 0
+ .if \reduce
+ pshufd $0b01001110, TMP_XMM, TMP_XMM
+ .endif
+
+ schoolbook1_iteration 5 0
+ .if \reduce
+ pxor PL, TMP_XMM
+ .endif
+
+ schoolbook1_iteration 4 0
+ .if \reduce
+ pxor TMP_XMM, PH
+ .endif
+
+ schoolbook1_iteration 3 0
+ .if \reduce
+ pclmulqdq $0x11, GSTAR, TMP_XMM
+ .endif
+
+ schoolbook1_iteration 2 0
+ .if \reduce
+ vpxor TMP_XMM, PH, SUM
+ .endif
+
+ schoolbook1_iteration 1 0
+
+ schoolbook1_iteration 0 1
+
+ addq $(8*16), MSG
+ schoolbook2
+.endm
+
+/*
+ * Process BLOCKS_LEFT blocks, where 0 < BLOCKS_LEFT < STRIDE_BLOCKS
+ */
+.macro partial_stride
+ mov BLOCKS_LEFT, TMP
+ shlq $4, TMP
+ addq $(16*STRIDE_BLOCKS), KEY_POWERS
+ subq TMP, KEY_POWERS
+
+ movups (MSG), %xmm0
+ pxor SUM, %xmm0
+ movaps (KEY_POWERS), %xmm1
+ schoolbook1_noload
+ dec BLOCKS_LEFT
+ addq $16, MSG
+ addq $16, KEY_POWERS
+
+ test $4, BLOCKS_LEFT
+ jz .Lpartial4BlocksDone
+ schoolbook1 4
+ addq $(4*16), MSG
+ addq $(4*16), KEY_POWERS
+.Lpartial4BlocksDone:
+ test $2, BLOCKS_LEFT
+ jz .Lpartial2BlocksDone
+ schoolbook1 2
+ addq $(2*16), MSG
+ addq $(2*16), KEY_POWERS
+.Lpartial2BlocksDone:
+ test $1, BLOCKS_LEFT
+ jz .LpartialDone
+ schoolbook1 1
+.LpartialDone:
+ schoolbook2
+ montgomery_reduction SUM
+.endm
+
+/*
+ * Perform montgomery multiplication in GF(2^128) and store result in op1.
+ *
+ * Computes op1*op2*x^{-128} mod x^128 + x^127 + x^126 + x^121 + 1
+ * If op1, op2 are in montgomery form, this computes the montgomery
+ * form of op1*op2.
+ *
+ * void clmul_polyval_mul(u8 *op1, const u8 *op2);
+ */
+SYM_FUNC_START(clmul_polyval_mul)
+ FRAME_BEGIN
+ vmovdqa .Lgstar(%rip), GSTAR
+ movups (%rdi), %xmm0
+ movups (%rsi), %xmm1
+ schoolbook1_noload
+ schoolbook2
+ montgomery_reduction SUM
+ movups SUM, (%rdi)
+ FRAME_END
+ RET
+SYM_FUNC_END(clmul_polyval_mul)
+
+/*
+ * Perform polynomial evaluation as specified by POLYVAL. This computes:
+ * h^n * accumulator + h^n * m_0 + ... + h^1 * m_{n-1}
+ * where n=nblocks, h is the hash key, and m_i are the message blocks.
+ *
+ * rdi - pointer to precomputed key powers h^8 ... h^1
+ * rsi - pointer to message blocks
+ * rdx - number of blocks to hash
+ * rcx - pointer to the accumulator
+ *
+ * void clmul_polyval_update(const struct polyval_tfm_ctx *keys,
+ * const u8 *in, size_t nblocks, u8 *accumulator);
+ */
+SYM_FUNC_START(clmul_polyval_update)
+ FRAME_BEGIN
+ vmovdqa .Lgstar(%rip), GSTAR
+ movups (ACCUMULATOR), SUM
+ subq $STRIDE_BLOCKS, BLOCKS_LEFT
+ js .LstrideLoopExit
+ full_stride 0
+ subq $STRIDE_BLOCKS, BLOCKS_LEFT
+ js .LstrideLoopExitReduce
+.LstrideLoop:
+ full_stride 1
+ subq $STRIDE_BLOCKS, BLOCKS_LEFT
+ jns .LstrideLoop
+.LstrideLoopExitReduce:
+ montgomery_reduction SUM
+.LstrideLoopExit:
+ add $STRIDE_BLOCKS, BLOCKS_LEFT
+ jz .LskipPartial
+ partial_stride
+.LskipPartial:
+ movups SUM, (ACCUMULATOR)
+ FRAME_END
+ RET
+SYM_FUNC_END(clmul_polyval_update)
diff --git a/arch/x86/crypto/polyval-clmulni_glue.c b/arch/x86/crypto/polyval-clmulni_glue.c
new file mode 100644
index 000000000000..8fa58b0f3cb3
--- /dev/null
+++ b/arch/x86/crypto/polyval-clmulni_glue.c
@@ -0,0 +1,212 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Glue code for POLYVAL using PCMULQDQ-NI
+ *
+ * Copyright (c) 2007 Nokia Siemens Networks - Mikko Herranen <mh1@iki.fi>
+ * Copyright (c) 2009 Intel Corp.
+ * Author: Huang Ying <ying.huang@intel.com>
+ * Copyright 2021 Google LLC
+ */
+
+/*
+ * Glue code based on ghash-clmulni-intel_glue.c.
+ *
+ * This implementation of POLYVAL uses montgomery multiplication
+ * accelerated by PCLMULQDQ-NI to implement the finite field
+ * operations.
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
+#include <crypto/polyval.h>
+#include <linux/crypto.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <asm/cpu_device_id.h>
+#include <asm/simd.h>
+
+#define POLYVAL_ALIGN 16
+#define POLYVAL_ALIGN_ATTR __aligned(POLYVAL_ALIGN)
+#define POLYVAL_ALIGN_EXTRA ((POLYVAL_ALIGN - 1) & ~(CRYPTO_MINALIGN - 1))
+#define POLYVAL_CTX_SIZE (sizeof(struct polyval_tfm_ctx) + POLYVAL_ALIGN_EXTRA)
+#define NUM_KEY_POWERS 8
+
+struct polyval_tfm_ctx {
+ /*
+ * These powers must be in the order h^8, ..., h^1.
+ */
+ u8 key_powers[NUM_KEY_POWERS][POLYVAL_BLOCK_SIZE] POLYVAL_ALIGN_ATTR;
+};
+
+struct polyval_desc_ctx {
+ u8 buffer[POLYVAL_BLOCK_SIZE];
+ u32 bytes;
+};
+
+asmlinkage void clmul_polyval_update(const struct polyval_tfm_ctx *keys,
+ const u8 *in, size_t nblocks, u8 *accumulator);
+asmlinkage void clmul_polyval_mul(u8 *op1, const u8 *op2);
+
+static inline struct polyval_tfm_ctx *polyval_tfm_ctx(struct crypto_shash *tfm)
+{
+ return PTR_ALIGN(crypto_shash_ctx(tfm), POLYVAL_ALIGN);
+}
+
+static void internal_polyval_update(const struct polyval_tfm_ctx *keys,
+ const u8 *in, size_t nblocks, u8 *accumulator)
+{
+ if (likely(crypto_simd_usable())) {
+ kernel_fpu_begin();
+ clmul_polyval_update(keys, in, nblocks, accumulator);
+ kernel_fpu_end();
+ } else {
+ polyval_update_non4k(keys->key_powers[NUM_KEY_POWERS-1], in,
+ nblocks, accumulator);
+ }
+}
+
+static void internal_polyval_mul(u8 *op1, const u8 *op2)
+{
+ if (likely(crypto_simd_usable())) {
+ kernel_fpu_begin();
+ clmul_polyval_mul(op1, op2);
+ kernel_fpu_end();
+ } else {
+ polyval_mul_non4k(op1, op2);
+ }
+}
+
+static int polyval_x86_setkey(struct crypto_shash *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ struct polyval_tfm_ctx *tctx = polyval_tfm_ctx(tfm);
+ int i;
+
+ if (keylen != POLYVAL_BLOCK_SIZE)
+ return -EINVAL;
+
+ memcpy(tctx->key_powers[NUM_KEY_POWERS-1], key, POLYVAL_BLOCK_SIZE);
+
+ for (i = NUM_KEY_POWERS-2; i >= 0; i--) {
+ memcpy(tctx->key_powers[i], key, POLYVAL_BLOCK_SIZE);
+ internal_polyval_mul(tctx->key_powers[i],
+ tctx->key_powers[i+1]);
+ }
+
+ return 0;
+}
+
+static int polyval_x86_init(struct shash_desc *desc)
+{
+ struct polyval_desc_ctx *dctx = shash_desc_ctx(desc);
+
+ memset(dctx, 0, sizeof(*dctx));
+
+ return 0;
+}
+
+static int polyval_x86_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
+{
+ struct polyval_desc_ctx *dctx = shash_desc_ctx(desc);
+ const struct polyval_tfm_ctx *tctx = polyval_tfm_ctx(desc->tfm);
+ u8 *pos;
+ unsigned int nblocks;
+ unsigned int n;
+
+ if (dctx->bytes) {
+ n = min(srclen, dctx->bytes);
+ pos = dctx->buffer + POLYVAL_BLOCK_SIZE - dctx->bytes;
+
+ dctx->bytes -= n;
+ srclen -= n;
+
+ while (n--)
+ *pos++ ^= *src++;
+
+ if (!dctx->bytes)
+ internal_polyval_mul(dctx->buffer,
+ tctx->key_powers[NUM_KEY_POWERS-1]);
+ }
+
+ while (srclen >= POLYVAL_BLOCK_SIZE) {
+ /* Allow rescheduling every 4K bytes. */
+ nblocks = min(srclen, 4096U) / POLYVAL_BLOCK_SIZE;
+ internal_polyval_update(tctx, src, nblocks, dctx->buffer);
+ srclen -= nblocks * POLYVAL_BLOCK_SIZE;
+ src += nblocks * POLYVAL_BLOCK_SIZE;
+ }
+
+ if (srclen) {
+ dctx->bytes = POLYVAL_BLOCK_SIZE - srclen;
+ pos = dctx->buffer;
+ while (srclen--)
+ *pos++ ^= *src++;
+ }
+
+ return 0;
+}
+
+static int polyval_x86_final(struct shash_desc *desc, u8 *dst)
+{
+ struct polyval_desc_ctx *dctx = shash_desc_ctx(desc);
+ const struct polyval_tfm_ctx *tctx = polyval_tfm_ctx(desc->tfm);
+
+ if (dctx->bytes) {
+ internal_polyval_mul(dctx->buffer,
+ tctx->key_powers[NUM_KEY_POWERS-1]);
+ }
+
+ memcpy(dst, dctx->buffer, POLYVAL_BLOCK_SIZE);
+
+ return 0;
+}
+
+static struct shash_alg polyval_alg = {
+ .digestsize = POLYVAL_DIGEST_SIZE,
+ .init = polyval_x86_init,
+ .update = polyval_x86_update,
+ .final = polyval_x86_final,
+ .setkey = polyval_x86_setkey,
+ .descsize = sizeof(struct polyval_desc_ctx),
+ .base = {
+ .cra_name = "polyval",
+ .cra_driver_name = "polyval-clmulni",
+ .cra_priority = 200,
+ .cra_blocksize = POLYVAL_BLOCK_SIZE,
+ .cra_ctxsize = POLYVAL_CTX_SIZE,
+ .cra_module = THIS_MODULE,
+ },
+};
+
+__maybe_unused static const struct x86_cpu_id pcmul_cpu_id[] = {
+ X86_MATCH_FEATURE(X86_FEATURE_PCLMULQDQ, NULL),
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, pcmul_cpu_id);
+
+static int __init polyval_clmulni_mod_init(void)
+{
+ if (!x86_match_cpu(pcmul_cpu_id))
+ return -ENODEV;
+
+ if (!boot_cpu_has(X86_FEATURE_AVX))
+ return -ENODEV;
+
+ return crypto_register_shash(&polyval_alg);
+}
+
+static void __exit polyval_clmulni_mod_exit(void)
+{
+ crypto_unregister_shash(&polyval_alg);
+}
+
+module_init(polyval_clmulni_mod_init);
+module_exit(polyval_clmulni_mod_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("POLYVAL hash function accelerated by PCLMULQDQ-NI");
+MODULE_ALIAS_CRYPTO("polyval");
+MODULE_ALIAS_CRYPTO("polyval-clmulni");
diff --git a/arch/x86/crypto/salsa20-i586-asm_32.S b/arch/x86/crypto/salsa20-i586-asm_32.S
deleted file mode 100644
index 72eb306680b2..000000000000
--- a/arch/x86/crypto/salsa20-i586-asm_32.S
+++ /dev/null
@@ -1,1114 +0,0 @@
-# salsa20_pm.s version 20051229
-# D. J. Bernstein
-# Public domain.
-
-# enter ECRYPT_encrypt_bytes
-.text
-.p2align 5
-.globl ECRYPT_encrypt_bytes
-ECRYPT_encrypt_bytes:
- mov %esp,%eax
- and $31,%eax
- add $256,%eax
- sub %eax,%esp
- # eax_stack = eax
- movl %eax,80(%esp)
- # ebx_stack = ebx
- movl %ebx,84(%esp)
- # esi_stack = esi
- movl %esi,88(%esp)
- # edi_stack = edi
- movl %edi,92(%esp)
- # ebp_stack = ebp
- movl %ebp,96(%esp)
- # x = arg1
- movl 4(%esp,%eax),%edx
- # m = arg2
- movl 8(%esp,%eax),%esi
- # out = arg3
- movl 12(%esp,%eax),%edi
- # bytes = arg4
- movl 16(%esp,%eax),%ebx
- # bytes -= 0
- sub $0,%ebx
- # goto done if unsigned<=
- jbe ._done
-._start:
- # in0 = *(uint32 *) (x + 0)
- movl 0(%edx),%eax
- # in1 = *(uint32 *) (x + 4)
- movl 4(%edx),%ecx
- # in2 = *(uint32 *) (x + 8)
- movl 8(%edx),%ebp
- # j0 = in0
- movl %eax,164(%esp)
- # in3 = *(uint32 *) (x + 12)
- movl 12(%edx),%eax
- # j1 = in1
- movl %ecx,168(%esp)
- # in4 = *(uint32 *) (x + 16)
- movl 16(%edx),%ecx
- # j2 = in2
- movl %ebp,172(%esp)
- # in5 = *(uint32 *) (x + 20)
- movl 20(%edx),%ebp
- # j3 = in3
- movl %eax,176(%esp)
- # in6 = *(uint32 *) (x + 24)
- movl 24(%edx),%eax
- # j4 = in4
- movl %ecx,180(%esp)
- # in7 = *(uint32 *) (x + 28)
- movl 28(%edx),%ecx
- # j5 = in5
- movl %ebp,184(%esp)
- # in8 = *(uint32 *) (x + 32)
- movl 32(%edx),%ebp
- # j6 = in6
- movl %eax,188(%esp)
- # in9 = *(uint32 *) (x + 36)
- movl 36(%edx),%eax
- # j7 = in7
- movl %ecx,192(%esp)
- # in10 = *(uint32 *) (x + 40)
- movl 40(%edx),%ecx
- # j8 = in8
- movl %ebp,196(%esp)
- # in11 = *(uint32 *) (x + 44)
- movl 44(%edx),%ebp
- # j9 = in9
- movl %eax,200(%esp)
- # in12 = *(uint32 *) (x + 48)
- movl 48(%edx),%eax
- # j10 = in10
- movl %ecx,204(%esp)
- # in13 = *(uint32 *) (x + 52)
- movl 52(%edx),%ecx
- # j11 = in11
- movl %ebp,208(%esp)
- # in14 = *(uint32 *) (x + 56)
- movl 56(%edx),%ebp
- # j12 = in12
- movl %eax,212(%esp)
- # in15 = *(uint32 *) (x + 60)
- movl 60(%edx),%eax
- # j13 = in13
- movl %ecx,216(%esp)
- # j14 = in14
- movl %ebp,220(%esp)
- # j15 = in15
- movl %eax,224(%esp)
- # x_backup = x
- movl %edx,64(%esp)
-._bytesatleast1:
- # bytes - 64
- cmp $64,%ebx
- # goto nocopy if unsigned>=
- jae ._nocopy
- # ctarget = out
- movl %edi,228(%esp)
- # out = &tmp
- leal 0(%esp),%edi
- # i = bytes
- mov %ebx,%ecx
- # while (i) { *out++ = *m++; --i }
- rep movsb
- # out = &tmp
- leal 0(%esp),%edi
- # m = &tmp
- leal 0(%esp),%esi
-._nocopy:
- # out_backup = out
- movl %edi,72(%esp)
- # m_backup = m
- movl %esi,68(%esp)
- # bytes_backup = bytes
- movl %ebx,76(%esp)
- # in0 = j0
- movl 164(%esp),%eax
- # in1 = j1
- movl 168(%esp),%ecx
- # in2 = j2
- movl 172(%esp),%edx
- # in3 = j3
- movl 176(%esp),%ebx
- # x0 = in0
- movl %eax,100(%esp)
- # x1 = in1
- movl %ecx,104(%esp)
- # x2 = in2
- movl %edx,108(%esp)
- # x3 = in3
- movl %ebx,112(%esp)
- # in4 = j4
- movl 180(%esp),%eax
- # in5 = j5
- movl 184(%esp),%ecx
- # in6 = j6
- movl 188(%esp),%edx
- # in7 = j7
- movl 192(%esp),%ebx
- # x4 = in4
- movl %eax,116(%esp)
- # x5 = in5
- movl %ecx,120(%esp)
- # x6 = in6
- movl %edx,124(%esp)
- # x7 = in7
- movl %ebx,128(%esp)
- # in8 = j8
- movl 196(%esp),%eax
- # in9 = j9
- movl 200(%esp),%ecx
- # in10 = j10
- movl 204(%esp),%edx
- # in11 = j11
- movl 208(%esp),%ebx
- # x8 = in8
- movl %eax,132(%esp)
- # x9 = in9
- movl %ecx,136(%esp)
- # x10 = in10
- movl %edx,140(%esp)
- # x11 = in11
- movl %ebx,144(%esp)
- # in12 = j12
- movl 212(%esp),%eax
- # in13 = j13
- movl 216(%esp),%ecx
- # in14 = j14
- movl 220(%esp),%edx
- # in15 = j15
- movl 224(%esp),%ebx
- # x12 = in12
- movl %eax,148(%esp)
- # x13 = in13
- movl %ecx,152(%esp)
- # x14 = in14
- movl %edx,156(%esp)
- # x15 = in15
- movl %ebx,160(%esp)
- # i = 20
- mov $20,%ebp
- # p = x0
- movl 100(%esp),%eax
- # s = x5
- movl 120(%esp),%ecx
- # t = x10
- movl 140(%esp),%edx
- # w = x15
- movl 160(%esp),%ebx
-._mainloop:
- # x0 = p
- movl %eax,100(%esp)
- # x10 = t
- movl %edx,140(%esp)
- # p += x12
- addl 148(%esp),%eax
- # x5 = s
- movl %ecx,120(%esp)
- # t += x6
- addl 124(%esp),%edx
- # x15 = w
- movl %ebx,160(%esp)
- # r = x1
- movl 104(%esp),%esi
- # r += s
- add %ecx,%esi
- # v = x11
- movl 144(%esp),%edi
- # v += w
- add %ebx,%edi
- # p <<<= 7
- rol $7,%eax
- # p ^= x4
- xorl 116(%esp),%eax
- # t <<<= 7
- rol $7,%edx
- # t ^= x14
- xorl 156(%esp),%edx
- # r <<<= 7
- rol $7,%esi
- # r ^= x9
- xorl 136(%esp),%esi
- # v <<<= 7
- rol $7,%edi
- # v ^= x3
- xorl 112(%esp),%edi
- # x4 = p
- movl %eax,116(%esp)
- # x14 = t
- movl %edx,156(%esp)
- # p += x0
- addl 100(%esp),%eax
- # x9 = r
- movl %esi,136(%esp)
- # t += x10
- addl 140(%esp),%edx
- # x3 = v
- movl %edi,112(%esp)
- # p <<<= 9
- rol $9,%eax
- # p ^= x8
- xorl 132(%esp),%eax
- # t <<<= 9
- rol $9,%edx
- # t ^= x2
- xorl 108(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 9
- rol $9,%ecx
- # s ^= x13
- xorl 152(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 9
- rol $9,%ebx
- # w ^= x7
- xorl 128(%esp),%ebx
- # x8 = p
- movl %eax,132(%esp)
- # x2 = t
- movl %edx,108(%esp)
- # p += x4
- addl 116(%esp),%eax
- # x13 = s
- movl %ecx,152(%esp)
- # t += x14
- addl 156(%esp),%edx
- # x7 = w
- movl %ebx,128(%esp)
- # p <<<= 13
- rol $13,%eax
- # p ^= x12
- xorl 148(%esp),%eax
- # t <<<= 13
- rol $13,%edx
- # t ^= x6
- xorl 124(%esp),%edx
- # r += s
- add %ecx,%esi
- # r <<<= 13
- rol $13,%esi
- # r ^= x1
- xorl 104(%esp),%esi
- # v += w
- add %ebx,%edi
- # v <<<= 13
- rol $13,%edi
- # v ^= x11
- xorl 144(%esp),%edi
- # x12 = p
- movl %eax,148(%esp)
- # x6 = t
- movl %edx,124(%esp)
- # p += x8
- addl 132(%esp),%eax
- # x1 = r
- movl %esi,104(%esp)
- # t += x2
- addl 108(%esp),%edx
- # x11 = v
- movl %edi,144(%esp)
- # p <<<= 18
- rol $18,%eax
- # p ^= x0
- xorl 100(%esp),%eax
- # t <<<= 18
- rol $18,%edx
- # t ^= x10
- xorl 140(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 18
- rol $18,%ecx
- # s ^= x5
- xorl 120(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 18
- rol $18,%ebx
- # w ^= x15
- xorl 160(%esp),%ebx
- # x0 = p
- movl %eax,100(%esp)
- # x10 = t
- movl %edx,140(%esp)
- # p += x3
- addl 112(%esp),%eax
- # p <<<= 7
- rol $7,%eax
- # x5 = s
- movl %ecx,120(%esp)
- # t += x9
- addl 136(%esp),%edx
- # x15 = w
- movl %ebx,160(%esp)
- # r = x4
- movl 116(%esp),%esi
- # r += s
- add %ecx,%esi
- # v = x14
- movl 156(%esp),%edi
- # v += w
- add %ebx,%edi
- # p ^= x1
- xorl 104(%esp),%eax
- # t <<<= 7
- rol $7,%edx
- # t ^= x11
- xorl 144(%esp),%edx
- # r <<<= 7
- rol $7,%esi
- # r ^= x6
- xorl 124(%esp),%esi
- # v <<<= 7
- rol $7,%edi
- # v ^= x12
- xorl 148(%esp),%edi
- # x1 = p
- movl %eax,104(%esp)
- # x11 = t
- movl %edx,144(%esp)
- # p += x0
- addl 100(%esp),%eax
- # x6 = r
- movl %esi,124(%esp)
- # t += x10
- addl 140(%esp),%edx
- # x12 = v
- movl %edi,148(%esp)
- # p <<<= 9
- rol $9,%eax
- # p ^= x2
- xorl 108(%esp),%eax
- # t <<<= 9
- rol $9,%edx
- # t ^= x8
- xorl 132(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 9
- rol $9,%ecx
- # s ^= x7
- xorl 128(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 9
- rol $9,%ebx
- # w ^= x13
- xorl 152(%esp),%ebx
- # x2 = p
- movl %eax,108(%esp)
- # x8 = t
- movl %edx,132(%esp)
- # p += x1
- addl 104(%esp),%eax
- # x7 = s
- movl %ecx,128(%esp)
- # t += x11
- addl 144(%esp),%edx
- # x13 = w
- movl %ebx,152(%esp)
- # p <<<= 13
- rol $13,%eax
- # p ^= x3
- xorl 112(%esp),%eax
- # t <<<= 13
- rol $13,%edx
- # t ^= x9
- xorl 136(%esp),%edx
- # r += s
- add %ecx,%esi
- # r <<<= 13
- rol $13,%esi
- # r ^= x4
- xorl 116(%esp),%esi
- # v += w
- add %ebx,%edi
- # v <<<= 13
- rol $13,%edi
- # v ^= x14
- xorl 156(%esp),%edi
- # x3 = p
- movl %eax,112(%esp)
- # x9 = t
- movl %edx,136(%esp)
- # p += x2
- addl 108(%esp),%eax
- # x4 = r
- movl %esi,116(%esp)
- # t += x8
- addl 132(%esp),%edx
- # x14 = v
- movl %edi,156(%esp)
- # p <<<= 18
- rol $18,%eax
- # p ^= x0
- xorl 100(%esp),%eax
- # t <<<= 18
- rol $18,%edx
- # t ^= x10
- xorl 140(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 18
- rol $18,%ecx
- # s ^= x5
- xorl 120(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 18
- rol $18,%ebx
- # w ^= x15
- xorl 160(%esp),%ebx
- # x0 = p
- movl %eax,100(%esp)
- # x10 = t
- movl %edx,140(%esp)
- # p += x12
- addl 148(%esp),%eax
- # x5 = s
- movl %ecx,120(%esp)
- # t += x6
- addl 124(%esp),%edx
- # x15 = w
- movl %ebx,160(%esp)
- # r = x1
- movl 104(%esp),%esi
- # r += s
- add %ecx,%esi
- # v = x11
- movl 144(%esp),%edi
- # v += w
- add %ebx,%edi
- # p <<<= 7
- rol $7,%eax
- # p ^= x4
- xorl 116(%esp),%eax
- # t <<<= 7
- rol $7,%edx
- # t ^= x14
- xorl 156(%esp),%edx
- # r <<<= 7
- rol $7,%esi
- # r ^= x9
- xorl 136(%esp),%esi
- # v <<<= 7
- rol $7,%edi
- # v ^= x3
- xorl 112(%esp),%edi
- # x4 = p
- movl %eax,116(%esp)
- # x14 = t
- movl %edx,156(%esp)
- # p += x0
- addl 100(%esp),%eax
- # x9 = r
- movl %esi,136(%esp)
- # t += x10
- addl 140(%esp),%edx
- # x3 = v
- movl %edi,112(%esp)
- # p <<<= 9
- rol $9,%eax
- # p ^= x8
- xorl 132(%esp),%eax
- # t <<<= 9
- rol $9,%edx
- # t ^= x2
- xorl 108(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 9
- rol $9,%ecx
- # s ^= x13
- xorl 152(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 9
- rol $9,%ebx
- # w ^= x7
- xorl 128(%esp),%ebx
- # x8 = p
- movl %eax,132(%esp)
- # x2 = t
- movl %edx,108(%esp)
- # p += x4
- addl 116(%esp),%eax
- # x13 = s
- movl %ecx,152(%esp)
- # t += x14
- addl 156(%esp),%edx
- # x7 = w
- movl %ebx,128(%esp)
- # p <<<= 13
- rol $13,%eax
- # p ^= x12
- xorl 148(%esp),%eax
- # t <<<= 13
- rol $13,%edx
- # t ^= x6
- xorl 124(%esp),%edx
- # r += s
- add %ecx,%esi
- # r <<<= 13
- rol $13,%esi
- # r ^= x1
- xorl 104(%esp),%esi
- # v += w
- add %ebx,%edi
- # v <<<= 13
- rol $13,%edi
- # v ^= x11
- xorl 144(%esp),%edi
- # x12 = p
- movl %eax,148(%esp)
- # x6 = t
- movl %edx,124(%esp)
- # p += x8
- addl 132(%esp),%eax
- # x1 = r
- movl %esi,104(%esp)
- # t += x2
- addl 108(%esp),%edx
- # x11 = v
- movl %edi,144(%esp)
- # p <<<= 18
- rol $18,%eax
- # p ^= x0
- xorl 100(%esp),%eax
- # t <<<= 18
- rol $18,%edx
- # t ^= x10
- xorl 140(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 18
- rol $18,%ecx
- # s ^= x5
- xorl 120(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 18
- rol $18,%ebx
- # w ^= x15
- xorl 160(%esp),%ebx
- # x0 = p
- movl %eax,100(%esp)
- # x10 = t
- movl %edx,140(%esp)
- # p += x3
- addl 112(%esp),%eax
- # p <<<= 7
- rol $7,%eax
- # x5 = s
- movl %ecx,120(%esp)
- # t += x9
- addl 136(%esp),%edx
- # x15 = w
- movl %ebx,160(%esp)
- # r = x4
- movl 116(%esp),%esi
- # r += s
- add %ecx,%esi
- # v = x14
- movl 156(%esp),%edi
- # v += w
- add %ebx,%edi
- # p ^= x1
- xorl 104(%esp),%eax
- # t <<<= 7
- rol $7,%edx
- # t ^= x11
- xorl 144(%esp),%edx
- # r <<<= 7
- rol $7,%esi
- # r ^= x6
- xorl 124(%esp),%esi
- # v <<<= 7
- rol $7,%edi
- # v ^= x12
- xorl 148(%esp),%edi
- # x1 = p
- movl %eax,104(%esp)
- # x11 = t
- movl %edx,144(%esp)
- # p += x0
- addl 100(%esp),%eax
- # x6 = r
- movl %esi,124(%esp)
- # t += x10
- addl 140(%esp),%edx
- # x12 = v
- movl %edi,148(%esp)
- # p <<<= 9
- rol $9,%eax
- # p ^= x2
- xorl 108(%esp),%eax
- # t <<<= 9
- rol $9,%edx
- # t ^= x8
- xorl 132(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 9
- rol $9,%ecx
- # s ^= x7
- xorl 128(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 9
- rol $9,%ebx
- # w ^= x13
- xorl 152(%esp),%ebx
- # x2 = p
- movl %eax,108(%esp)
- # x8 = t
- movl %edx,132(%esp)
- # p += x1
- addl 104(%esp),%eax
- # x7 = s
- movl %ecx,128(%esp)
- # t += x11
- addl 144(%esp),%edx
- # x13 = w
- movl %ebx,152(%esp)
- # p <<<= 13
- rol $13,%eax
- # p ^= x3
- xorl 112(%esp),%eax
- # t <<<= 13
- rol $13,%edx
- # t ^= x9
- xorl 136(%esp),%edx
- # r += s
- add %ecx,%esi
- # r <<<= 13
- rol $13,%esi
- # r ^= x4
- xorl 116(%esp),%esi
- # v += w
- add %ebx,%edi
- # v <<<= 13
- rol $13,%edi
- # v ^= x14
- xorl 156(%esp),%edi
- # x3 = p
- movl %eax,112(%esp)
- # x9 = t
- movl %edx,136(%esp)
- # p += x2
- addl 108(%esp),%eax
- # x4 = r
- movl %esi,116(%esp)
- # t += x8
- addl 132(%esp),%edx
- # x14 = v
- movl %edi,156(%esp)
- # p <<<= 18
- rol $18,%eax
- # p ^= x0
- xorl 100(%esp),%eax
- # t <<<= 18
- rol $18,%edx
- # t ^= x10
- xorl 140(%esp),%edx
- # s += r
- add %esi,%ecx
- # s <<<= 18
- rol $18,%ecx
- # s ^= x5
- xorl 120(%esp),%ecx
- # w += v
- add %edi,%ebx
- # w <<<= 18
- rol $18,%ebx
- # w ^= x15
- xorl 160(%esp),%ebx
- # i -= 4
- sub $4,%ebp
- # goto mainloop if unsigned >
- ja ._mainloop
- # x0 = p
- movl %eax,100(%esp)
- # x5 = s
- movl %ecx,120(%esp)
- # x10 = t
- movl %edx,140(%esp)
- # x15 = w
- movl %ebx,160(%esp)
- # out = out_backup
- movl 72(%esp),%edi
- # m = m_backup
- movl 68(%esp),%esi
- # in0 = x0
- movl 100(%esp),%eax
- # in1 = x1
- movl 104(%esp),%ecx
- # in0 += j0
- addl 164(%esp),%eax
- # in1 += j1
- addl 168(%esp),%ecx
- # in0 ^= *(uint32 *) (m + 0)
- xorl 0(%esi),%eax
- # in1 ^= *(uint32 *) (m + 4)
- xorl 4(%esi),%ecx
- # *(uint32 *) (out + 0) = in0
- movl %eax,0(%edi)
- # *(uint32 *) (out + 4) = in1
- movl %ecx,4(%edi)
- # in2 = x2
- movl 108(%esp),%eax
- # in3 = x3
- movl 112(%esp),%ecx
- # in2 += j2
- addl 172(%esp),%eax
- # in3 += j3
- addl 176(%esp),%ecx
- # in2 ^= *(uint32 *) (m + 8)
- xorl 8(%esi),%eax
- # in3 ^= *(uint32 *) (m + 12)
- xorl 12(%esi),%ecx
- # *(uint32 *) (out + 8) = in2
- movl %eax,8(%edi)
- # *(uint32 *) (out + 12) = in3
- movl %ecx,12(%edi)
- # in4 = x4
- movl 116(%esp),%eax
- # in5 = x5
- movl 120(%esp),%ecx
- # in4 += j4
- addl 180(%esp),%eax
- # in5 += j5
- addl 184(%esp),%ecx
- # in4 ^= *(uint32 *) (m + 16)
- xorl 16(%esi),%eax
- # in5 ^= *(uint32 *) (m + 20)
- xorl 20(%esi),%ecx
- # *(uint32 *) (out + 16) = in4
- movl %eax,16(%edi)
- # *(uint32 *) (out + 20) = in5
- movl %ecx,20(%edi)
- # in6 = x6
- movl 124(%esp),%eax
- # in7 = x7
- movl 128(%esp),%ecx
- # in6 += j6
- addl 188(%esp),%eax
- # in7 += j7
- addl 192(%esp),%ecx
- # in6 ^= *(uint32 *) (m + 24)
- xorl 24(%esi),%eax
- # in7 ^= *(uint32 *) (m + 28)
- xorl 28(%esi),%ecx
- # *(uint32 *) (out + 24) = in6
- movl %eax,24(%edi)
- # *(uint32 *) (out + 28) = in7
- movl %ecx,28(%edi)
- # in8 = x8
- movl 132(%esp),%eax
- # in9 = x9
- movl 136(%esp),%ecx
- # in8 += j8
- addl 196(%esp),%eax
- # in9 += j9
- addl 200(%esp),%ecx
- # in8 ^= *(uint32 *) (m + 32)
- xorl 32(%esi),%eax
- # in9 ^= *(uint32 *) (m + 36)
- xorl 36(%esi),%ecx
- # *(uint32 *) (out + 32) = in8
- movl %eax,32(%edi)
- # *(uint32 *) (out + 36) = in9
- movl %ecx,36(%edi)
- # in10 = x10
- movl 140(%esp),%eax
- # in11 = x11
- movl 144(%esp),%ecx
- # in10 += j10
- addl 204(%esp),%eax
- # in11 += j11
- addl 208(%esp),%ecx
- # in10 ^= *(uint32 *) (m + 40)
- xorl 40(%esi),%eax
- # in11 ^= *(uint32 *) (m + 44)
- xorl 44(%esi),%ecx
- # *(uint32 *) (out + 40) = in10
- movl %eax,40(%edi)
- # *(uint32 *) (out + 44) = in11
- movl %ecx,44(%edi)
- # in12 = x12
- movl 148(%esp),%eax
- # in13 = x13
- movl 152(%esp),%ecx
- # in12 += j12
- addl 212(%esp),%eax
- # in13 += j13
- addl 216(%esp),%ecx
- # in12 ^= *(uint32 *) (m + 48)
- xorl 48(%esi),%eax
- # in13 ^= *(uint32 *) (m + 52)
- xorl 52(%esi),%ecx
- # *(uint32 *) (out + 48) = in12
- movl %eax,48(%edi)
- # *(uint32 *) (out + 52) = in13
- movl %ecx,52(%edi)
- # in14 = x14
- movl 156(%esp),%eax
- # in15 = x15
- movl 160(%esp),%ecx
- # in14 += j14
- addl 220(%esp),%eax
- # in15 += j15
- addl 224(%esp),%ecx
- # in14 ^= *(uint32 *) (m + 56)
- xorl 56(%esi),%eax
- # in15 ^= *(uint32 *) (m + 60)
- xorl 60(%esi),%ecx
- # *(uint32 *) (out + 56) = in14
- movl %eax,56(%edi)
- # *(uint32 *) (out + 60) = in15
- movl %ecx,60(%edi)
- # bytes = bytes_backup
- movl 76(%esp),%ebx
- # in8 = j8
- movl 196(%esp),%eax
- # in9 = j9
- movl 200(%esp),%ecx
- # in8 += 1
- add $1,%eax
- # in9 += 0 + carry
- adc $0,%ecx
- # j8 = in8
- movl %eax,196(%esp)
- # j9 = in9
- movl %ecx,200(%esp)
- # bytes - 64
- cmp $64,%ebx
- # goto bytesatleast65 if unsigned>
- ja ._bytesatleast65
- # goto bytesatleast64 if unsigned>=
- jae ._bytesatleast64
- # m = out
- mov %edi,%esi
- # out = ctarget
- movl 228(%esp),%edi
- # i = bytes
- mov %ebx,%ecx
- # while (i) { *out++ = *m++; --i }
- rep movsb
-._bytesatleast64:
- # x = x_backup
- movl 64(%esp),%eax
- # in8 = j8
- movl 196(%esp),%ecx
- # in9 = j9
- movl 200(%esp),%edx
- # *(uint32 *) (x + 32) = in8
- movl %ecx,32(%eax)
- # *(uint32 *) (x + 36) = in9
- movl %edx,36(%eax)
-._done:
- # eax = eax_stack
- movl 80(%esp),%eax
- # ebx = ebx_stack
- movl 84(%esp),%ebx
- # esi = esi_stack
- movl 88(%esp),%esi
- # edi = edi_stack
- movl 92(%esp),%edi
- # ebp = ebp_stack
- movl 96(%esp),%ebp
- # leave
- add %eax,%esp
- ret
-._bytesatleast65:
- # bytes -= 64
- sub $64,%ebx
- # out += 64
- add $64,%edi
- # m += 64
- add $64,%esi
- # goto bytesatleast1
- jmp ._bytesatleast1
-# enter ECRYPT_keysetup
-.text
-.p2align 5
-.globl ECRYPT_keysetup
-ECRYPT_keysetup:
- mov %esp,%eax
- and $31,%eax
- add $256,%eax
- sub %eax,%esp
- # eax_stack = eax
- movl %eax,64(%esp)
- # ebx_stack = ebx
- movl %ebx,68(%esp)
- # esi_stack = esi
- movl %esi,72(%esp)
- # edi_stack = edi
- movl %edi,76(%esp)
- # ebp_stack = ebp
- movl %ebp,80(%esp)
- # k = arg2
- movl 8(%esp,%eax),%ecx
- # kbits = arg3
- movl 12(%esp,%eax),%edx
- # x = arg1
- movl 4(%esp,%eax),%eax
- # in1 = *(uint32 *) (k + 0)
- movl 0(%ecx),%ebx
- # in2 = *(uint32 *) (k + 4)
- movl 4(%ecx),%esi
- # in3 = *(uint32 *) (k + 8)
- movl 8(%ecx),%edi
- # in4 = *(uint32 *) (k + 12)
- movl 12(%ecx),%ebp
- # *(uint32 *) (x + 4) = in1
- movl %ebx,4(%eax)
- # *(uint32 *) (x + 8) = in2
- movl %esi,8(%eax)
- # *(uint32 *) (x + 12) = in3
- movl %edi,12(%eax)
- # *(uint32 *) (x + 16) = in4
- movl %ebp,16(%eax)
- # kbits - 256
- cmp $256,%edx
- # goto kbits128 if unsigned<
- jb ._kbits128
-._kbits256:
- # in11 = *(uint32 *) (k + 16)
- movl 16(%ecx),%edx
- # in12 = *(uint32 *) (k + 20)
- movl 20(%ecx),%ebx
- # in13 = *(uint32 *) (k + 24)
- movl 24(%ecx),%esi
- # in14 = *(uint32 *) (k + 28)
- movl 28(%ecx),%ecx
- # *(uint32 *) (x + 44) = in11
- movl %edx,44(%eax)
- # *(uint32 *) (x + 48) = in12
- movl %ebx,48(%eax)
- # *(uint32 *) (x + 52) = in13
- movl %esi,52(%eax)
- # *(uint32 *) (x + 56) = in14
- movl %ecx,56(%eax)
- # in0 = 1634760805
- mov $1634760805,%ecx
- # in5 = 857760878
- mov $857760878,%edx
- # in10 = 2036477234
- mov $2036477234,%ebx
- # in15 = 1797285236
- mov $1797285236,%esi
- # *(uint32 *) (x + 0) = in0
- movl %ecx,0(%eax)
- # *(uint32 *) (x + 20) = in5
- movl %edx,20(%eax)
- # *(uint32 *) (x + 40) = in10
- movl %ebx,40(%eax)
- # *(uint32 *) (x + 60) = in15
- movl %esi,60(%eax)
- # goto keysetupdone
- jmp ._keysetupdone
-._kbits128:
- # in11 = *(uint32 *) (k + 0)
- movl 0(%ecx),%edx
- # in12 = *(uint32 *) (k + 4)
- movl 4(%ecx),%ebx
- # in13 = *(uint32 *) (k + 8)
- movl 8(%ecx),%esi
- # in14 = *(uint32 *) (k + 12)
- movl 12(%ecx),%ecx
- # *(uint32 *) (x + 44) = in11
- movl %edx,44(%eax)
- # *(uint32 *) (x + 48) = in12
- movl %ebx,48(%eax)
- # *(uint32 *) (x + 52) = in13
- movl %esi,52(%eax)
- # *(uint32 *) (x + 56) = in14
- movl %ecx,56(%eax)
- # in0 = 1634760805
- mov $1634760805,%ecx
- # in5 = 824206446
- mov $824206446,%edx
- # in10 = 2036477238
- mov $2036477238,%ebx
- # in15 = 1797285236
- mov $1797285236,%esi
- # *(uint32 *) (x + 0) = in0
- movl %ecx,0(%eax)
- # *(uint32 *) (x + 20) = in5
- movl %edx,20(%eax)
- # *(uint32 *) (x + 40) = in10
- movl %ebx,40(%eax)
- # *(uint32 *) (x + 60) = in15
- movl %esi,60(%eax)
-._keysetupdone:
- # eax = eax_stack
- movl 64(%esp),%eax
- # ebx = ebx_stack
- movl 68(%esp),%ebx
- # esi = esi_stack
- movl 72(%esp),%esi
- # edi = edi_stack
- movl 76(%esp),%edi
- # ebp = ebp_stack
- movl 80(%esp),%ebp
- # leave
- add %eax,%esp
- ret
-# enter ECRYPT_ivsetup
-.text
-.p2align 5
-.globl ECRYPT_ivsetup
-ECRYPT_ivsetup:
- mov %esp,%eax
- and $31,%eax
- add $256,%eax
- sub %eax,%esp
- # eax_stack = eax
- movl %eax,64(%esp)
- # ebx_stack = ebx
- movl %ebx,68(%esp)
- # esi_stack = esi
- movl %esi,72(%esp)
- # edi_stack = edi
- movl %edi,76(%esp)
- # ebp_stack = ebp
- movl %ebp,80(%esp)
- # iv = arg2
- movl 8(%esp,%eax),%ecx
- # x = arg1
- movl 4(%esp,%eax),%eax
- # in6 = *(uint32 *) (iv + 0)
- movl 0(%ecx),%edx
- # in7 = *(uint32 *) (iv + 4)
- movl 4(%ecx),%ecx
- # in8 = 0
- mov $0,%ebx
- # in9 = 0
- mov $0,%esi
- # *(uint32 *) (x + 24) = in6
- movl %edx,24(%eax)
- # *(uint32 *) (x + 28) = in7
- movl %ecx,28(%eax)
- # *(uint32 *) (x + 32) = in8
- movl %ebx,32(%eax)
- # *(uint32 *) (x + 36) = in9
- movl %esi,36(%eax)
- # eax = eax_stack
- movl 64(%esp),%eax
- # ebx = ebx_stack
- movl 68(%esp),%ebx
- # esi = esi_stack
- movl 72(%esp),%esi
- # edi = edi_stack
- movl 76(%esp),%edi
- # ebp = ebp_stack
- movl 80(%esp),%ebp
- # leave
- add %eax,%esp
- ret
diff --git a/arch/x86/crypto/salsa20-x86_64-asm_64.S b/arch/x86/crypto/salsa20-x86_64-asm_64.S
deleted file mode 100644
index 6214a9b09706..000000000000
--- a/arch/x86/crypto/salsa20-x86_64-asm_64.S
+++ /dev/null
@@ -1,920 +0,0 @@
-# enter ECRYPT_encrypt_bytes
-.text
-.p2align 5
-.globl ECRYPT_encrypt_bytes
-ECRYPT_encrypt_bytes:
- mov %rsp,%r11
- and $31,%r11
- add $256,%r11
- sub %r11,%rsp
- # x = arg1
- mov %rdi,%r8
- # m = arg2
- mov %rsi,%rsi
- # out = arg3
- mov %rdx,%rdi
- # bytes = arg4
- mov %rcx,%rdx
- # unsigned>? bytes - 0
- cmp $0,%rdx
- # comment:fp stack unchanged by jump
- # goto done if !unsigned>
- jbe ._done
- # comment:fp stack unchanged by fallthrough
-# start:
-._start:
- # r11_stack = r11
- movq %r11,0(%rsp)
- # r12_stack = r12
- movq %r12,8(%rsp)
- # r13_stack = r13
- movq %r13,16(%rsp)
- # r14_stack = r14
- movq %r14,24(%rsp)
- # r15_stack = r15
- movq %r15,32(%rsp)
- # rbx_stack = rbx
- movq %rbx,40(%rsp)
- # rbp_stack = rbp
- movq %rbp,48(%rsp)
- # in0 = *(uint64 *) (x + 0)
- movq 0(%r8),%rcx
- # in2 = *(uint64 *) (x + 8)
- movq 8(%r8),%r9
- # in4 = *(uint64 *) (x + 16)
- movq 16(%r8),%rax
- # in6 = *(uint64 *) (x + 24)
- movq 24(%r8),%r10
- # in8 = *(uint64 *) (x + 32)
- movq 32(%r8),%r11
- # in10 = *(uint64 *) (x + 40)
- movq 40(%r8),%r12
- # in12 = *(uint64 *) (x + 48)
- movq 48(%r8),%r13
- # in14 = *(uint64 *) (x + 56)
- movq 56(%r8),%r14
- # j0 = in0
- movq %rcx,56(%rsp)
- # j2 = in2
- movq %r9,64(%rsp)
- # j4 = in4
- movq %rax,72(%rsp)
- # j6 = in6
- movq %r10,80(%rsp)
- # j8 = in8
- movq %r11,88(%rsp)
- # j10 = in10
- movq %r12,96(%rsp)
- # j12 = in12
- movq %r13,104(%rsp)
- # j14 = in14
- movq %r14,112(%rsp)
- # x_backup = x
- movq %r8,120(%rsp)
-# bytesatleast1:
-._bytesatleast1:
- # unsigned<? bytes - 64
- cmp $64,%rdx
- # comment:fp stack unchanged by jump
- # goto nocopy if !unsigned<
- jae ._nocopy
- # ctarget = out
- movq %rdi,128(%rsp)
- # out = &tmp
- leaq 192(%rsp),%rdi
- # i = bytes
- mov %rdx,%rcx
- # while (i) { *out++ = *m++; --i }
- rep movsb
- # out = &tmp
- leaq 192(%rsp),%rdi
- # m = &tmp
- leaq 192(%rsp),%rsi
- # comment:fp stack unchanged by fallthrough
-# nocopy:
-._nocopy:
- # out_backup = out
- movq %rdi,136(%rsp)
- # m_backup = m
- movq %rsi,144(%rsp)
- # bytes_backup = bytes
- movq %rdx,152(%rsp)
- # x1 = j0
- movq 56(%rsp),%rdi
- # x0 = x1
- mov %rdi,%rdx
- # (uint64) x1 >>= 32
- shr $32,%rdi
- # x3 = j2
- movq 64(%rsp),%rsi
- # x2 = x3
- mov %rsi,%rcx
- # (uint64) x3 >>= 32
- shr $32,%rsi
- # x5 = j4
- movq 72(%rsp),%r8
- # x4 = x5
- mov %r8,%r9
- # (uint64) x5 >>= 32
- shr $32,%r8
- # x5_stack = x5
- movq %r8,160(%rsp)
- # x7 = j6
- movq 80(%rsp),%r8
- # x6 = x7
- mov %r8,%rax
- # (uint64) x7 >>= 32
- shr $32,%r8
- # x9 = j8
- movq 88(%rsp),%r10
- # x8 = x9
- mov %r10,%r11
- # (uint64) x9 >>= 32
- shr $32,%r10
- # x11 = j10
- movq 96(%rsp),%r12
- # x10 = x11
- mov %r12,%r13
- # x10_stack = x10
- movq %r13,168(%rsp)
- # (uint64) x11 >>= 32
- shr $32,%r12
- # x13 = j12
- movq 104(%rsp),%r13
- # x12 = x13
- mov %r13,%r14
- # (uint64) x13 >>= 32
- shr $32,%r13
- # x15 = j14
- movq 112(%rsp),%r15
- # x14 = x15
- mov %r15,%rbx
- # (uint64) x15 >>= 32
- shr $32,%r15
- # x15_stack = x15
- movq %r15,176(%rsp)
- # i = 20
- mov $20,%r15
-# mainloop:
-._mainloop:
- # i_backup = i
- movq %r15,184(%rsp)
- # x5 = x5_stack
- movq 160(%rsp),%r15
- # a = x12 + x0
- lea (%r14,%rdx),%rbp
- # (uint32) a <<<= 7
- rol $7,%ebp
- # x4 ^= a
- xor %rbp,%r9
- # b = x1 + x5
- lea (%rdi,%r15),%rbp
- # (uint32) b <<<= 7
- rol $7,%ebp
- # x9 ^= b
- xor %rbp,%r10
- # a = x0 + x4
- lea (%rdx,%r9),%rbp
- # (uint32) a <<<= 9
- rol $9,%ebp
- # x8 ^= a
- xor %rbp,%r11
- # b = x5 + x9
- lea (%r15,%r10),%rbp
- # (uint32) b <<<= 9
- rol $9,%ebp
- # x13 ^= b
- xor %rbp,%r13
- # a = x4 + x8
- lea (%r9,%r11),%rbp
- # (uint32) a <<<= 13
- rol $13,%ebp
- # x12 ^= a
- xor %rbp,%r14
- # b = x9 + x13
- lea (%r10,%r13),%rbp
- # (uint32) b <<<= 13
- rol $13,%ebp
- # x1 ^= b
- xor %rbp,%rdi
- # a = x8 + x12
- lea (%r11,%r14),%rbp
- # (uint32) a <<<= 18
- rol $18,%ebp
- # x0 ^= a
- xor %rbp,%rdx
- # b = x13 + x1
- lea (%r13,%rdi),%rbp
- # (uint32) b <<<= 18
- rol $18,%ebp
- # x5 ^= b
- xor %rbp,%r15
- # x10 = x10_stack
- movq 168(%rsp),%rbp
- # x5_stack = x5
- movq %r15,160(%rsp)
- # c = x6 + x10
- lea (%rax,%rbp),%r15
- # (uint32) c <<<= 7
- rol $7,%r15d
- # x14 ^= c
- xor %r15,%rbx
- # c = x10 + x14
- lea (%rbp,%rbx),%r15
- # (uint32) c <<<= 9
- rol $9,%r15d
- # x2 ^= c
- xor %r15,%rcx
- # c = x14 + x2
- lea (%rbx,%rcx),%r15
- # (uint32) c <<<= 13
- rol $13,%r15d
- # x6 ^= c
- xor %r15,%rax
- # c = x2 + x6
- lea (%rcx,%rax),%r15
- # (uint32) c <<<= 18
- rol $18,%r15d
- # x10 ^= c
- xor %r15,%rbp
- # x15 = x15_stack
- movq 176(%rsp),%r15
- # x10_stack = x10
- movq %rbp,168(%rsp)
- # d = x11 + x15
- lea (%r12,%r15),%rbp
- # (uint32) d <<<= 7
- rol $7,%ebp
- # x3 ^= d
- xor %rbp,%rsi
- # d = x15 + x3
- lea (%r15,%rsi),%rbp
- # (uint32) d <<<= 9
- rol $9,%ebp
- # x7 ^= d
- xor %rbp,%r8
- # d = x3 + x7
- lea (%rsi,%r8),%rbp
- # (uint32) d <<<= 13
- rol $13,%ebp
- # x11 ^= d
- xor %rbp,%r12
- # d = x7 + x11
- lea (%r8,%r12),%rbp
- # (uint32) d <<<= 18
- rol $18,%ebp
- # x15 ^= d
- xor %rbp,%r15
- # x15_stack = x15
- movq %r15,176(%rsp)
- # x5 = x5_stack
- movq 160(%rsp),%r15
- # a = x3 + x0
- lea (%rsi,%rdx),%rbp
- # (uint32) a <<<= 7
- rol $7,%ebp
- # x1 ^= a
- xor %rbp,%rdi
- # b = x4 + x5
- lea (%r9,%r15),%rbp
- # (uint32) b <<<= 7
- rol $7,%ebp
- # x6 ^= b
- xor %rbp,%rax
- # a = x0 + x1
- lea (%rdx,%rdi),%rbp
- # (uint32) a <<<= 9
- rol $9,%ebp
- # x2 ^= a
- xor %rbp,%rcx
- # b = x5 + x6
- lea (%r15,%rax),%rbp
- # (uint32) b <<<= 9
- rol $9,%ebp
- # x7 ^= b
- xor %rbp,%r8
- # a = x1 + x2
- lea (%rdi,%rcx),%rbp
- # (uint32) a <<<= 13
- rol $13,%ebp
- # x3 ^= a
- xor %rbp,%rsi
- # b = x6 + x7
- lea (%rax,%r8),%rbp
- # (uint32) b <<<= 13
- rol $13,%ebp
- # x4 ^= b
- xor %rbp,%r9
- # a = x2 + x3
- lea (%rcx,%rsi),%rbp
- # (uint32) a <<<= 18
- rol $18,%ebp
- # x0 ^= a
- xor %rbp,%rdx
- # b = x7 + x4
- lea (%r8,%r9),%rbp
- # (uint32) b <<<= 18
- rol $18,%ebp
- # x5 ^= b
- xor %rbp,%r15
- # x10 = x10_stack
- movq 168(%rsp),%rbp
- # x5_stack = x5
- movq %r15,160(%rsp)
- # c = x9 + x10
- lea (%r10,%rbp),%r15
- # (uint32) c <<<= 7
- rol $7,%r15d
- # x11 ^= c
- xor %r15,%r12
- # c = x10 + x11
- lea (%rbp,%r12),%r15
- # (uint32) c <<<= 9
- rol $9,%r15d
- # x8 ^= c
- xor %r15,%r11
- # c = x11 + x8
- lea (%r12,%r11),%r15
- # (uint32) c <<<= 13
- rol $13,%r15d
- # x9 ^= c
- xor %r15,%r10
- # c = x8 + x9
- lea (%r11,%r10),%r15
- # (uint32) c <<<= 18
- rol $18,%r15d
- # x10 ^= c
- xor %r15,%rbp
- # x15 = x15_stack
- movq 176(%rsp),%r15
- # x10_stack = x10
- movq %rbp,168(%rsp)
- # d = x14 + x15
- lea (%rbx,%r15),%rbp
- # (uint32) d <<<= 7
- rol $7,%ebp
- # x12 ^= d
- xor %rbp,%r14
- # d = x15 + x12
- lea (%r15,%r14),%rbp
- # (uint32) d <<<= 9
- rol $9,%ebp
- # x13 ^= d
- xor %rbp,%r13
- # d = x12 + x13
- lea (%r14,%r13),%rbp
- # (uint32) d <<<= 13
- rol $13,%ebp
- # x14 ^= d
- xor %rbp,%rbx
- # d = x13 + x14
- lea (%r13,%rbx),%rbp
- # (uint32) d <<<= 18
- rol $18,%ebp
- # x15 ^= d
- xor %rbp,%r15
- # x15_stack = x15
- movq %r15,176(%rsp)
- # x5 = x5_stack
- movq 160(%rsp),%r15
- # a = x12 + x0
- lea (%r14,%rdx),%rbp
- # (uint32) a <<<= 7
- rol $7,%ebp
- # x4 ^= a
- xor %rbp,%r9
- # b = x1 + x5
- lea (%rdi,%r15),%rbp
- # (uint32) b <<<= 7
- rol $7,%ebp
- # x9 ^= b
- xor %rbp,%r10
- # a = x0 + x4
- lea (%rdx,%r9),%rbp
- # (uint32) a <<<= 9
- rol $9,%ebp
- # x8 ^= a
- xor %rbp,%r11
- # b = x5 + x9
- lea (%r15,%r10),%rbp
- # (uint32) b <<<= 9
- rol $9,%ebp
- # x13 ^= b
- xor %rbp,%r13
- # a = x4 + x8
- lea (%r9,%r11),%rbp
- # (uint32) a <<<= 13
- rol $13,%ebp
- # x12 ^= a
- xor %rbp,%r14
- # b = x9 + x13
- lea (%r10,%r13),%rbp
- # (uint32) b <<<= 13
- rol $13,%ebp
- # x1 ^= b
- xor %rbp,%rdi
- # a = x8 + x12
- lea (%r11,%r14),%rbp
- # (uint32) a <<<= 18
- rol $18,%ebp
- # x0 ^= a
- xor %rbp,%rdx
- # b = x13 + x1
- lea (%r13,%rdi),%rbp
- # (uint32) b <<<= 18
- rol $18,%ebp
- # x5 ^= b
- xor %rbp,%r15
- # x10 = x10_stack
- movq 168(%rsp),%rbp
- # x5_stack = x5
- movq %r15,160(%rsp)
- # c = x6 + x10
- lea (%rax,%rbp),%r15
- # (uint32) c <<<= 7
- rol $7,%r15d
- # x14 ^= c
- xor %r15,%rbx
- # c = x10 + x14
- lea (%rbp,%rbx),%r15
- # (uint32) c <<<= 9
- rol $9,%r15d
- # x2 ^= c
- xor %r15,%rcx
- # c = x14 + x2
- lea (%rbx,%rcx),%r15
- # (uint32) c <<<= 13
- rol $13,%r15d
- # x6 ^= c
- xor %r15,%rax
- # c = x2 + x6
- lea (%rcx,%rax),%r15
- # (uint32) c <<<= 18
- rol $18,%r15d
- # x10 ^= c
- xor %r15,%rbp
- # x15 = x15_stack
- movq 176(%rsp),%r15
- # x10_stack = x10
- movq %rbp,168(%rsp)
- # d = x11 + x15
- lea (%r12,%r15),%rbp
- # (uint32) d <<<= 7
- rol $7,%ebp
- # x3 ^= d
- xor %rbp,%rsi
- # d = x15 + x3
- lea (%r15,%rsi),%rbp
- # (uint32) d <<<= 9
- rol $9,%ebp
- # x7 ^= d
- xor %rbp,%r8
- # d = x3 + x7
- lea (%rsi,%r8),%rbp
- # (uint32) d <<<= 13
- rol $13,%ebp
- # x11 ^= d
- xor %rbp,%r12
- # d = x7 + x11
- lea (%r8,%r12),%rbp
- # (uint32) d <<<= 18
- rol $18,%ebp
- # x15 ^= d
- xor %rbp,%r15
- # x15_stack = x15
- movq %r15,176(%rsp)
- # x5 = x5_stack
- movq 160(%rsp),%r15
- # a = x3 + x0
- lea (%rsi,%rdx),%rbp
- # (uint32) a <<<= 7
- rol $7,%ebp
- # x1 ^= a
- xor %rbp,%rdi
- # b = x4 + x5
- lea (%r9,%r15),%rbp
- # (uint32) b <<<= 7
- rol $7,%ebp
- # x6 ^= b
- xor %rbp,%rax
- # a = x0 + x1
- lea (%rdx,%rdi),%rbp
- # (uint32) a <<<= 9
- rol $9,%ebp
- # x2 ^= a
- xor %rbp,%rcx
- # b = x5 + x6
- lea (%r15,%rax),%rbp
- # (uint32) b <<<= 9
- rol $9,%ebp
- # x7 ^= b
- xor %rbp,%r8
- # a = x1 + x2
- lea (%rdi,%rcx),%rbp
- # (uint32) a <<<= 13
- rol $13,%ebp
- # x3 ^= a
- xor %rbp,%rsi
- # b = x6 + x7
- lea (%rax,%r8),%rbp
- # (uint32) b <<<= 13
- rol $13,%ebp
- # x4 ^= b
- xor %rbp,%r9
- # a = x2 + x3
- lea (%rcx,%rsi),%rbp
- # (uint32) a <<<= 18
- rol $18,%ebp
- # x0 ^= a
- xor %rbp,%rdx
- # b = x7 + x4
- lea (%r8,%r9),%rbp
- # (uint32) b <<<= 18
- rol $18,%ebp
- # x5 ^= b
- xor %rbp,%r15
- # x10 = x10_stack
- movq 168(%rsp),%rbp
- # x5_stack = x5
- movq %r15,160(%rsp)
- # c = x9 + x10
- lea (%r10,%rbp),%r15
- # (uint32) c <<<= 7
- rol $7,%r15d
- # x11 ^= c
- xor %r15,%r12
- # c = x10 + x11
- lea (%rbp,%r12),%r15
- # (uint32) c <<<= 9
- rol $9,%r15d
- # x8 ^= c
- xor %r15,%r11
- # c = x11 + x8
- lea (%r12,%r11),%r15
- # (uint32) c <<<= 13
- rol $13,%r15d
- # x9 ^= c
- xor %r15,%r10
- # c = x8 + x9
- lea (%r11,%r10),%r15
- # (uint32) c <<<= 18
- rol $18,%r15d
- # x10 ^= c
- xor %r15,%rbp
- # x15 = x15_stack
- movq 176(%rsp),%r15
- # x10_stack = x10
- movq %rbp,168(%rsp)
- # d = x14 + x15
- lea (%rbx,%r15),%rbp
- # (uint32) d <<<= 7
- rol $7,%ebp
- # x12 ^= d
- xor %rbp,%r14
- # d = x15 + x12
- lea (%r15,%r14),%rbp
- # (uint32) d <<<= 9
- rol $9,%ebp
- # x13 ^= d
- xor %rbp,%r13
- # d = x12 + x13
- lea (%r14,%r13),%rbp
- # (uint32) d <<<= 13
- rol $13,%ebp
- # x14 ^= d
- xor %rbp,%rbx
- # d = x13 + x14
- lea (%r13,%rbx),%rbp
- # (uint32) d <<<= 18
- rol $18,%ebp
- # x15 ^= d
- xor %rbp,%r15
- # x15_stack = x15
- movq %r15,176(%rsp)
- # i = i_backup
- movq 184(%rsp),%r15
- # unsigned>? i -= 4
- sub $4,%r15
- # comment:fp stack unchanged by jump
- # goto mainloop if unsigned>
- ja ._mainloop
- # (uint32) x2 += j2
- addl 64(%rsp),%ecx
- # x3 <<= 32
- shl $32,%rsi
- # x3 += j2
- addq 64(%rsp),%rsi
- # (uint64) x3 >>= 32
- shr $32,%rsi
- # x3 <<= 32
- shl $32,%rsi
- # x2 += x3
- add %rsi,%rcx
- # (uint32) x6 += j6
- addl 80(%rsp),%eax
- # x7 <<= 32
- shl $32,%r8
- # x7 += j6
- addq 80(%rsp),%r8
- # (uint64) x7 >>= 32
- shr $32,%r8
- # x7 <<= 32
- shl $32,%r8
- # x6 += x7
- add %r8,%rax
- # (uint32) x8 += j8
- addl 88(%rsp),%r11d
- # x9 <<= 32
- shl $32,%r10
- # x9 += j8
- addq 88(%rsp),%r10
- # (uint64) x9 >>= 32
- shr $32,%r10
- # x9 <<= 32
- shl $32,%r10
- # x8 += x9
- add %r10,%r11
- # (uint32) x12 += j12
- addl 104(%rsp),%r14d
- # x13 <<= 32
- shl $32,%r13
- # x13 += j12
- addq 104(%rsp),%r13
- # (uint64) x13 >>= 32
- shr $32,%r13
- # x13 <<= 32
- shl $32,%r13
- # x12 += x13
- add %r13,%r14
- # (uint32) x0 += j0
- addl 56(%rsp),%edx
- # x1 <<= 32
- shl $32,%rdi
- # x1 += j0
- addq 56(%rsp),%rdi
- # (uint64) x1 >>= 32
- shr $32,%rdi
- # x1 <<= 32
- shl $32,%rdi
- # x0 += x1
- add %rdi,%rdx
- # x5 = x5_stack
- movq 160(%rsp),%rdi
- # (uint32) x4 += j4
- addl 72(%rsp),%r9d
- # x5 <<= 32
- shl $32,%rdi
- # x5 += j4
- addq 72(%rsp),%rdi
- # (uint64) x5 >>= 32
- shr $32,%rdi
- # x5 <<= 32
- shl $32,%rdi
- # x4 += x5
- add %rdi,%r9
- # x10 = x10_stack
- movq 168(%rsp),%r8
- # (uint32) x10 += j10
- addl 96(%rsp),%r8d
- # x11 <<= 32
- shl $32,%r12
- # x11 += j10
- addq 96(%rsp),%r12
- # (uint64) x11 >>= 32
- shr $32,%r12
- # x11 <<= 32
- shl $32,%r12
- # x10 += x11
- add %r12,%r8
- # x15 = x15_stack
- movq 176(%rsp),%rdi
- # (uint32) x14 += j14
- addl 112(%rsp),%ebx
- # x15 <<= 32
- shl $32,%rdi
- # x15 += j14
- addq 112(%rsp),%rdi
- # (uint64) x15 >>= 32
- shr $32,%rdi
- # x15 <<= 32
- shl $32,%rdi
- # x14 += x15
- add %rdi,%rbx
- # out = out_backup
- movq 136(%rsp),%rdi
- # m = m_backup
- movq 144(%rsp),%rsi
- # x0 ^= *(uint64 *) (m + 0)
- xorq 0(%rsi),%rdx
- # *(uint64 *) (out + 0) = x0
- movq %rdx,0(%rdi)
- # x2 ^= *(uint64 *) (m + 8)
- xorq 8(%rsi),%rcx
- # *(uint64 *) (out + 8) = x2
- movq %rcx,8(%rdi)
- # x4 ^= *(uint64 *) (m + 16)
- xorq 16(%rsi),%r9
- # *(uint64 *) (out + 16) = x4
- movq %r9,16(%rdi)
- # x6 ^= *(uint64 *) (m + 24)
- xorq 24(%rsi),%rax
- # *(uint64 *) (out + 24) = x6
- movq %rax,24(%rdi)
- # x8 ^= *(uint64 *) (m + 32)
- xorq 32(%rsi),%r11
- # *(uint64 *) (out + 32) = x8
- movq %r11,32(%rdi)
- # x10 ^= *(uint64 *) (m + 40)
- xorq 40(%rsi),%r8
- # *(uint64 *) (out + 40) = x10
- movq %r8,40(%rdi)
- # x12 ^= *(uint64 *) (m + 48)
- xorq 48(%rsi),%r14
- # *(uint64 *) (out + 48) = x12
- movq %r14,48(%rdi)
- # x14 ^= *(uint64 *) (m + 56)
- xorq 56(%rsi),%rbx
- # *(uint64 *) (out + 56) = x14
- movq %rbx,56(%rdi)
- # bytes = bytes_backup
- movq 152(%rsp),%rdx
- # in8 = j8
- movq 88(%rsp),%rcx
- # in8 += 1
- add $1,%rcx
- # j8 = in8
- movq %rcx,88(%rsp)
- # unsigned>? unsigned<? bytes - 64
- cmp $64,%rdx
- # comment:fp stack unchanged by jump
- # goto bytesatleast65 if unsigned>
- ja ._bytesatleast65
- # comment:fp stack unchanged by jump
- # goto bytesatleast64 if !unsigned<
- jae ._bytesatleast64
- # m = out
- mov %rdi,%rsi
- # out = ctarget
- movq 128(%rsp),%rdi
- # i = bytes
- mov %rdx,%rcx
- # while (i) { *out++ = *m++; --i }
- rep movsb
- # comment:fp stack unchanged by fallthrough
-# bytesatleast64:
-._bytesatleast64:
- # x = x_backup
- movq 120(%rsp),%rdi
- # in8 = j8
- movq 88(%rsp),%rsi
- # *(uint64 *) (x + 32) = in8
- movq %rsi,32(%rdi)
- # r11 = r11_stack
- movq 0(%rsp),%r11
- # r12 = r12_stack
- movq 8(%rsp),%r12
- # r13 = r13_stack
- movq 16(%rsp),%r13
- # r14 = r14_stack
- movq 24(%rsp),%r14
- # r15 = r15_stack
- movq 32(%rsp),%r15
- # rbx = rbx_stack
- movq 40(%rsp),%rbx
- # rbp = rbp_stack
- movq 48(%rsp),%rbp
- # comment:fp stack unchanged by fallthrough
-# done:
-._done:
- # leave
- add %r11,%rsp
- mov %rdi,%rax
- mov %rsi,%rdx
- ret
-# bytesatleast65:
-._bytesatleast65:
- # bytes -= 64
- sub $64,%rdx
- # out += 64
- add $64,%rdi
- # m += 64
- add $64,%rsi
- # comment:fp stack unchanged by jump
- # goto bytesatleast1
- jmp ._bytesatleast1
-# enter ECRYPT_keysetup
-.text
-.p2align 5
-.globl ECRYPT_keysetup
-ECRYPT_keysetup:
- mov %rsp,%r11
- and $31,%r11
- add $256,%r11
- sub %r11,%rsp
- # k = arg2
- mov %rsi,%rsi
- # kbits = arg3
- mov %rdx,%rdx
- # x = arg1
- mov %rdi,%rdi
- # in0 = *(uint64 *) (k + 0)
- movq 0(%rsi),%r8
- # in2 = *(uint64 *) (k + 8)
- movq 8(%rsi),%r9
- # *(uint64 *) (x + 4) = in0
- movq %r8,4(%rdi)
- # *(uint64 *) (x + 12) = in2
- movq %r9,12(%rdi)
- # unsigned<? kbits - 256
- cmp $256,%rdx
- # comment:fp stack unchanged by jump
- # goto kbits128 if unsigned<
- jb ._kbits128
-# kbits256:
-._kbits256:
- # in10 = *(uint64 *) (k + 16)
- movq 16(%rsi),%rdx
- # in12 = *(uint64 *) (k + 24)
- movq 24(%rsi),%rsi
- # *(uint64 *) (x + 44) = in10
- movq %rdx,44(%rdi)
- # *(uint64 *) (x + 52) = in12
- movq %rsi,52(%rdi)
- # in0 = 1634760805
- mov $1634760805,%rsi
- # in4 = 857760878
- mov $857760878,%rdx
- # in10 = 2036477234
- mov $2036477234,%rcx
- # in14 = 1797285236
- mov $1797285236,%r8
- # *(uint32 *) (x + 0) = in0
- movl %esi,0(%rdi)
- # *(uint32 *) (x + 20) = in4
- movl %edx,20(%rdi)
- # *(uint32 *) (x + 40) = in10
- movl %ecx,40(%rdi)
- # *(uint32 *) (x + 60) = in14
- movl %r8d,60(%rdi)
- # comment:fp stack unchanged by jump
- # goto keysetupdone
- jmp ._keysetupdone
-# kbits128:
-._kbits128:
- # in10 = *(uint64 *) (k + 0)
- movq 0(%rsi),%rdx
- # in12 = *(uint64 *) (k + 8)
- movq 8(%rsi),%rsi
- # *(uint64 *) (x + 44) = in10
- movq %rdx,44(%rdi)
- # *(uint64 *) (x + 52) = in12
- movq %rsi,52(%rdi)
- # in0 = 1634760805
- mov $1634760805,%rsi
- # in4 = 824206446
- mov $824206446,%rdx
- # in10 = 2036477238
- mov $2036477238,%rcx
- # in14 = 1797285236
- mov $1797285236,%r8
- # *(uint32 *) (x + 0) = in0
- movl %esi,0(%rdi)
- # *(uint32 *) (x + 20) = in4
- movl %edx,20(%rdi)
- # *(uint32 *) (x + 40) = in10
- movl %ecx,40(%rdi)
- # *(uint32 *) (x + 60) = in14
- movl %r8d,60(%rdi)
-# keysetupdone:
-._keysetupdone:
- # leave
- add %r11,%rsp
- mov %rdi,%rax
- mov %rsi,%rdx
- ret
-# enter ECRYPT_ivsetup
-.text
-.p2align 5
-.globl ECRYPT_ivsetup
-ECRYPT_ivsetup:
- mov %rsp,%r11
- and $31,%r11
- add $256,%r11
- sub %r11,%rsp
- # iv = arg2
- mov %rsi,%rsi
- # x = arg1
- mov %rdi,%rdi
- # in6 = *(uint64 *) (iv + 0)
- movq 0(%rsi),%rsi
- # in8 = 0
- mov $0,%r8
- # *(uint64 *) (x + 24) = in6
- movq %rsi,24(%rdi)
- # *(uint64 *) (x + 32) = in8
- movq %r8,32(%rdi)
- # leave
- add %r11,%rsp
- mov %rdi,%rax
- mov %rsi,%rdx
- ret
diff --git a/arch/x86/crypto/salsa20_glue.c b/arch/x86/crypto/salsa20_glue.c
deleted file mode 100644
index bccb76d80987..000000000000
--- a/arch/x86/crypto/salsa20_glue.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/*
- * Glue code for optimized assembly version of Salsa20.
- *
- * Copyright (c) 2007 Tan Swee Heng <thesweeheng@gmail.com>
- *
- * The assembly codes are public domain assembly codes written by Daniel. J.
- * Bernstein <djb@cr.yp.to>. The codes are modified to include indentation
- * and to remove extraneous comments and functions that are not needed.
- * - i586 version, renamed as salsa20-i586-asm_32.S
- * available from <http://cr.yp.to/snuffle/salsa20/x86-pm/salsa20.s>
- * - x86-64 version, renamed as salsa20-x86_64-asm_64.S
- * available from <http://cr.yp.to/snuffle/salsa20/amd64-3/salsa20.s>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- */
-
-#include <crypto/algapi.h>
-#include <linux/module.h>
-#include <linux/crypto.h>
-
-#define SALSA20_IV_SIZE 8U
-#define SALSA20_MIN_KEY_SIZE 16U
-#define SALSA20_MAX_KEY_SIZE 32U
-
-// use the ECRYPT_* function names
-#define salsa20_keysetup ECRYPT_keysetup
-#define salsa20_ivsetup ECRYPT_ivsetup
-#define salsa20_encrypt_bytes ECRYPT_encrypt_bytes
-
-struct salsa20_ctx
-{
- u32 input[16];
-};
-
-asmlinkage void salsa20_keysetup(struct salsa20_ctx *ctx, const u8 *k,
- u32 keysize, u32 ivsize);
-asmlinkage void salsa20_ivsetup(struct salsa20_ctx *ctx, const u8 *iv);
-asmlinkage void salsa20_encrypt_bytes(struct salsa20_ctx *ctx,
- const u8 *src, u8 *dst, u32 bytes);
-
-static int setkey(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keysize)
-{
- struct salsa20_ctx *ctx = crypto_tfm_ctx(tfm);
- salsa20_keysetup(ctx, key, keysize*8, SALSA20_IV_SIZE*8);
- return 0;
-}
-
-static int encrypt(struct blkcipher_desc *desc,
- struct scatterlist *dst, struct scatterlist *src,
- unsigned int nbytes)
-{
- struct blkcipher_walk walk;
- struct crypto_blkcipher *tfm = desc->tfm;
- struct salsa20_ctx *ctx = crypto_blkcipher_ctx(tfm);
- int err;
-
- blkcipher_walk_init(&walk, dst, src, nbytes);
- err = blkcipher_walk_virt_block(desc, &walk, 64);
-
- salsa20_ivsetup(ctx, walk.iv);
-
- if (likely(walk.nbytes == nbytes))
- {
- salsa20_encrypt_bytes(ctx, walk.src.virt.addr,
- walk.dst.virt.addr, nbytes);
- return blkcipher_walk_done(desc, &walk, 0);
- }
-
- while (walk.nbytes >= 64) {
- salsa20_encrypt_bytes(ctx, walk.src.virt.addr,
- walk.dst.virt.addr,
- walk.nbytes - (walk.nbytes % 64));
- err = blkcipher_walk_done(desc, &walk, walk.nbytes % 64);
- }
-
- if (walk.nbytes) {
- salsa20_encrypt_bytes(ctx, walk.src.virt.addr,
- walk.dst.virt.addr, walk.nbytes);
- err = blkcipher_walk_done(desc, &walk, 0);
- }
-
- return err;
-}
-
-static struct crypto_alg alg = {
- .cra_name = "salsa20",
- .cra_driver_name = "salsa20-asm",
- .cra_priority = 200,
- .cra_flags = CRYPTO_ALG_TYPE_BLKCIPHER,
- .cra_type = &crypto_blkcipher_type,
- .cra_blocksize = 1,
- .cra_ctxsize = sizeof(struct salsa20_ctx),
- .cra_alignmask = 3,
- .cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(alg.cra_list),
- .cra_u = {
- .blkcipher = {
- .setkey = setkey,
- .encrypt = encrypt,
- .decrypt = encrypt,
- .min_keysize = SALSA20_MIN_KEY_SIZE,
- .max_keysize = SALSA20_MAX_KEY_SIZE,
- .ivsize = SALSA20_IV_SIZE,
- }
- }
-};
-
-static int __init init(void)
-{
- return crypto_register_alg(&alg);
-}
-
-static void __exit fini(void)
-{
- crypto_unregister_alg(&alg);
-}
-
-module_init(init);
-module_exit(fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION ("Salsa20 stream cipher algorithm (optimized assembly version)");
-MODULE_ALIAS("salsa20");
-MODULE_ALIAS("salsa20-asm");
diff --git a/arch/x86/crypto/serpent-avx-x86_64-asm_64.S b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
new file mode 100644
index 000000000000..97e283621851
--- /dev/null
+++ b/arch/x86/crypto/serpent-avx-x86_64-asm_64.S
@@ -0,0 +1,711 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Serpent Cipher 8-way parallel algorithm (x86_64/AVX)
+ *
+ * Copyright (C) 2012 Johannes Goetzfried
+ * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
+ *
+ * Copyright Ā© 2011-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+#include "glue_helper-asm-avx.S"
+
+.file "serpent-avx-x86_64-asm_64.S"
+
+.section .rodata.cst16.bswap128_mask, "aM", @progbits, 16
+.align 16
+.Lbswap128_mask:
+ .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+
+.text
+
+#define CTX %rdi
+
+/**********************************************************************
+ 8-way AVX serpent
+ **********************************************************************/
+#define RA1 %xmm0
+#define RB1 %xmm1
+#define RC1 %xmm2
+#define RD1 %xmm3
+#define RE1 %xmm4
+
+#define tp %xmm5
+
+#define RA2 %xmm6
+#define RB2 %xmm7
+#define RC2 %xmm8
+#define RD2 %xmm9
+#define RE2 %xmm10
+
+#define RNOT %xmm11
+
+#define RK0 %xmm12
+#define RK1 %xmm13
+#define RK2 %xmm14
+#define RK3 %xmm15
+
+
+#define S0_1(x0, x1, x2, x3, x4) \
+ vpor x0, x3, tp; \
+ vpxor x3, x0, x0; \
+ vpxor x2, x3, x4; \
+ vpxor RNOT, x4, x4; \
+ vpxor x1, tp, x3; \
+ vpand x0, x1, x1; \
+ vpxor x4, x1, x1; \
+ vpxor x0, x2, x2;
+#define S0_2(x0, x1, x2, x3, x4) \
+ vpxor x3, x0, x0; \
+ vpor x0, x4, x4; \
+ vpxor x2, x0, x0; \
+ vpand x1, x2, x2; \
+ vpxor x2, x3, x3; \
+ vpxor RNOT, x1, x1; \
+ vpxor x4, x2, x2; \
+ vpxor x2, x1, x1;
+
+#define S1_1(x0, x1, x2, x3, x4) \
+ vpxor x0, x1, tp; \
+ vpxor x3, x0, x0; \
+ vpxor RNOT, x3, x3; \
+ vpand tp, x1, x4; \
+ vpor tp, x0, x0; \
+ vpxor x2, x3, x3; \
+ vpxor x3, x0, x0; \
+ vpxor x3, tp, x1;
+#define S1_2(x0, x1, x2, x3, x4) \
+ vpxor x4, x3, x3; \
+ vpor x4, x1, x1; \
+ vpxor x2, x4, x4; \
+ vpand x0, x2, x2; \
+ vpxor x1, x2, x2; \
+ vpor x0, x1, x1; \
+ vpxor RNOT, x0, x0; \
+ vpxor x2, x0, x0; \
+ vpxor x1, x4, x4;
+
+#define S2_1(x0, x1, x2, x3, x4) \
+ vpxor RNOT, x3, x3; \
+ vpxor x0, x1, x1; \
+ vpand x2, x0, tp; \
+ vpxor x3, tp, tp; \
+ vpor x0, x3, x3; \
+ vpxor x1, x2, x2; \
+ vpxor x1, x3, x3; \
+ vpand tp, x1, x1;
+#define S2_2(x0, x1, x2, x3, x4) \
+ vpxor x2, tp, tp; \
+ vpand x3, x2, x2; \
+ vpor x1, x3, x3; \
+ vpxor RNOT, tp, tp; \
+ vpxor tp, x3, x3; \
+ vpxor tp, x0, x4; \
+ vpxor x2, tp, x0; \
+ vpor x2, x1, x1;
+
+#define S3_1(x0, x1, x2, x3, x4) \
+ vpxor x3, x1, tp; \
+ vpor x0, x3, x3; \
+ vpand x0, x1, x4; \
+ vpxor x2, x0, x0; \
+ vpxor tp, x2, x2; \
+ vpand x3, tp, x1; \
+ vpxor x3, x2, x2; \
+ vpor x4, x0, x0; \
+ vpxor x3, x4, x4;
+#define S3_2(x0, x1, x2, x3, x4) \
+ vpxor x0, x1, x1; \
+ vpand x3, x0, x0; \
+ vpand x4, x3, x3; \
+ vpxor x2, x3, x3; \
+ vpor x1, x4, x4; \
+ vpand x1, x2, x2; \
+ vpxor x3, x4, x4; \
+ vpxor x3, x0, x0; \
+ vpxor x2, x3, x3;
+
+#define S4_1(x0, x1, x2, x3, x4) \
+ vpand x0, x3, tp; \
+ vpxor x3, x0, x0; \
+ vpxor x2, tp, tp; \
+ vpor x3, x2, x2; \
+ vpxor x1, x0, x0; \
+ vpxor tp, x3, x4; \
+ vpor x0, x2, x2; \
+ vpxor x1, x2, x2;
+#define S4_2(x0, x1, x2, x3, x4) \
+ vpand x0, x1, x1; \
+ vpxor x4, x1, x1; \
+ vpand x2, x4, x4; \
+ vpxor tp, x2, x2; \
+ vpxor x0, x4, x4; \
+ vpor x1, tp, x3; \
+ vpxor RNOT, x1, x1; \
+ vpxor x0, x3, x3;
+
+#define S5_1(x0, x1, x2, x3, x4) \
+ vpor x0, x1, tp; \
+ vpxor tp, x2, x2; \
+ vpxor RNOT, x3, x3; \
+ vpxor x0, x1, x4; \
+ vpxor x2, x0, x0; \
+ vpand x4, tp, x1; \
+ vpor x3, x4, x4; \
+ vpxor x0, x4, x4;
+#define S5_2(x0, x1, x2, x3, x4) \
+ vpand x3, x0, x0; \
+ vpxor x3, x1, x1; \
+ vpxor x2, x3, x3; \
+ vpxor x1, x0, x0; \
+ vpand x4, x2, x2; \
+ vpxor x2, x1, x1; \
+ vpand x0, x2, x2; \
+ vpxor x2, x3, x3;
+
+#define S6_1(x0, x1, x2, x3, x4) \
+ vpxor x0, x3, x3; \
+ vpxor x2, x1, tp; \
+ vpxor x0, x2, x2; \
+ vpand x3, x0, x0; \
+ vpor x3, tp, tp; \
+ vpxor RNOT, x1, x4; \
+ vpxor tp, x0, x0; \
+ vpxor x2, tp, x1;
+#define S6_2(x0, x1, x2, x3, x4) \
+ vpxor x4, x3, x3; \
+ vpxor x0, x4, x4; \
+ vpand x0, x2, x2; \
+ vpxor x1, x4, x4; \
+ vpxor x3, x2, x2; \
+ vpand x1, x3, x3; \
+ vpxor x0, x3, x3; \
+ vpxor x2, x1, x1;
+
+#define S7_1(x0, x1, x2, x3, x4) \
+ vpxor RNOT, x1, tp; \
+ vpxor RNOT, x0, x0; \
+ vpand x2, tp, x1; \
+ vpxor x3, x1, x1; \
+ vpor tp, x3, x3; \
+ vpxor x2, tp, x4; \
+ vpxor x3, x2, x2; \
+ vpxor x0, x3, x3; \
+ vpor x1, x0, x0;
+#define S7_2(x0, x1, x2, x3, x4) \
+ vpand x0, x2, x2; \
+ vpxor x4, x0, x0; \
+ vpxor x3, x4, x4; \
+ vpand x0, x3, x3; \
+ vpxor x1, x4, x4; \
+ vpxor x4, x2, x2; \
+ vpxor x1, x3, x3; \
+ vpor x0, x4, x4; \
+ vpxor x1, x4, x4;
+
+#define SI0_1(x0, x1, x2, x3, x4) \
+ vpxor x0, x1, x1; \
+ vpor x1, x3, tp; \
+ vpxor x1, x3, x4; \
+ vpxor RNOT, x0, x0; \
+ vpxor tp, x2, x2; \
+ vpxor x0, tp, x3; \
+ vpand x1, x0, x0; \
+ vpxor x2, x0, x0;
+#define SI0_2(x0, x1, x2, x3, x4) \
+ vpand x3, x2, x2; \
+ vpxor x4, x3, x3; \
+ vpxor x3, x2, x2; \
+ vpxor x3, x1, x1; \
+ vpand x0, x3, x3; \
+ vpxor x0, x1, x1; \
+ vpxor x2, x0, x0; \
+ vpxor x3, x4, x4;
+
+#define SI1_1(x0, x1, x2, x3, x4) \
+ vpxor x3, x1, x1; \
+ vpxor x2, x0, tp; \
+ vpxor RNOT, x2, x2; \
+ vpor x1, x0, x4; \
+ vpxor x3, x4, x4; \
+ vpand x1, x3, x3; \
+ vpxor x2, x1, x1; \
+ vpand x4, x2, x2;
+#define SI1_2(x0, x1, x2, x3, x4) \
+ vpxor x1, x4, x4; \
+ vpor x3, x1, x1; \
+ vpxor tp, x3, x3; \
+ vpxor tp, x2, x2; \
+ vpor x4, tp, x0; \
+ vpxor x4, x2, x2; \
+ vpxor x0, x1, x1; \
+ vpxor x1, x4, x4;
+
+#define SI2_1(x0, x1, x2, x3, x4) \
+ vpxor x1, x2, x2; \
+ vpxor RNOT, x3, tp; \
+ vpor x2, tp, tp; \
+ vpxor x3, x2, x2; \
+ vpxor x0, x3, x4; \
+ vpxor x1, tp, x3; \
+ vpor x2, x1, x1; \
+ vpxor x0, x2, x2;
+#define SI2_2(x0, x1, x2, x3, x4) \
+ vpxor x4, x1, x1; \
+ vpor x3, x4, x4; \
+ vpxor x3, x2, x2; \
+ vpxor x2, x4, x4; \
+ vpand x1, x2, x2; \
+ vpxor x3, x2, x2; \
+ vpxor x4, x3, x3; \
+ vpxor x0, x4, x4;
+
+#define SI3_1(x0, x1, x2, x3, x4) \
+ vpxor x1, x2, x2; \
+ vpand x2, x1, tp; \
+ vpxor x0, tp, tp; \
+ vpor x1, x0, x0; \
+ vpxor x3, x1, x4; \
+ vpxor x3, x0, x0; \
+ vpor tp, x3, x3; \
+ vpxor x2, tp, x1;
+#define SI3_2(x0, x1, x2, x3, x4) \
+ vpxor x3, x1, x1; \
+ vpxor x2, x0, x0; \
+ vpxor x3, x2, x2; \
+ vpand x1, x3, x3; \
+ vpxor x0, x1, x1; \
+ vpand x2, x0, x0; \
+ vpxor x3, x4, x4; \
+ vpxor x0, x3, x3; \
+ vpxor x1, x0, x0;
+
+#define SI4_1(x0, x1, x2, x3, x4) \
+ vpxor x3, x2, x2; \
+ vpand x1, x0, tp; \
+ vpxor x2, tp, tp; \
+ vpor x3, x2, x2; \
+ vpxor RNOT, x0, x4; \
+ vpxor tp, x1, x1; \
+ vpxor x2, tp, x0; \
+ vpand x4, x2, x2;
+#define SI4_2(x0, x1, x2, x3, x4) \
+ vpxor x0, x2, x2; \
+ vpor x4, x0, x0; \
+ vpxor x3, x0, x0; \
+ vpand x2, x3, x3; \
+ vpxor x3, x4, x4; \
+ vpxor x1, x3, x3; \
+ vpand x0, x1, x1; \
+ vpxor x1, x4, x4; \
+ vpxor x3, x0, x0;
+
+#define SI5_1(x0, x1, x2, x3, x4) \
+ vpor x2, x1, tp; \
+ vpxor x1, x2, x2; \
+ vpxor x3, tp, tp; \
+ vpand x1, x3, x3; \
+ vpxor x3, x2, x2; \
+ vpor x0, x3, x3; \
+ vpxor RNOT, x0, x0; \
+ vpxor x2, x3, x3; \
+ vpor x0, x2, x2;
+#define SI5_2(x0, x1, x2, x3, x4) \
+ vpxor tp, x1, x4; \
+ vpxor x4, x2, x2; \
+ vpand x0, x4, x4; \
+ vpxor tp, x0, x0; \
+ vpxor x3, tp, x1; \
+ vpand x2, x0, x0; \
+ vpxor x3, x2, x2; \
+ vpxor x2, x0, x0; \
+ vpxor x4, x2, x2; \
+ vpxor x3, x4, x4;
+
+#define SI6_1(x0, x1, x2, x3, x4) \
+ vpxor x2, x0, x0; \
+ vpand x3, x0, tp; \
+ vpxor x3, x2, x2; \
+ vpxor x2, tp, tp; \
+ vpxor x1, x3, x3; \
+ vpor x0, x2, x2; \
+ vpxor x3, x2, x2; \
+ vpand tp, x3, x3;
+#define SI6_2(x0, x1, x2, x3, x4) \
+ vpxor RNOT, tp, tp; \
+ vpxor x1, x3, x3; \
+ vpand x2, x1, x1; \
+ vpxor tp, x0, x4; \
+ vpxor x4, x3, x3; \
+ vpxor x2, x4, x4; \
+ vpxor x1, tp, x0; \
+ vpxor x0, x2, x2;
+
+#define SI7_1(x0, x1, x2, x3, x4) \
+ vpand x0, x3, tp; \
+ vpxor x2, x0, x0; \
+ vpor x3, x2, x2; \
+ vpxor x1, x3, x4; \
+ vpxor RNOT, x0, x0; \
+ vpor tp, x1, x1; \
+ vpxor x0, x4, x4; \
+ vpand x2, x0, x0; \
+ vpxor x1, x0, x0;
+#define SI7_2(x0, x1, x2, x3, x4) \
+ vpand x2, x1, x1; \
+ vpxor x2, tp, x3; \
+ vpxor x3, x4, x4; \
+ vpand x3, x2, x2; \
+ vpor x0, x3, x3; \
+ vpxor x4, x1, x1; \
+ vpxor x4, x3, x3; \
+ vpand x0, x4, x4; \
+ vpxor x2, x4, x4;
+
+#define get_key(i, j, t) \
+ vbroadcastss (4*(i)+(j))*4(CTX), t;
+
+#define K2(x0, x1, x2, x3, x4, i) \
+ get_key(i, 0, RK0); \
+ get_key(i, 1, RK1); \
+ get_key(i, 2, RK2); \
+ get_key(i, 3, RK3); \
+ vpxor RK0, x0 ## 1, x0 ## 1; \
+ vpxor RK1, x1 ## 1, x1 ## 1; \
+ vpxor RK2, x2 ## 1, x2 ## 1; \
+ vpxor RK3, x3 ## 1, x3 ## 1; \
+ vpxor RK0, x0 ## 2, x0 ## 2; \
+ vpxor RK1, x1 ## 2, x1 ## 2; \
+ vpxor RK2, x2 ## 2, x2 ## 2; \
+ vpxor RK3, x3 ## 2, x3 ## 2;
+
+#define LK2(x0, x1, x2, x3, x4, i) \
+ vpslld $13, x0 ## 1, x4 ## 1; \
+ vpsrld $(32 - 13), x0 ## 1, x0 ## 1; \
+ vpor x4 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor x0 ## 1, x1 ## 1, x1 ## 1; \
+ vpslld $3, x2 ## 1, x4 ## 1; \
+ vpsrld $(32 - 3), x2 ## 1, x2 ## 1; \
+ vpor x4 ## 1, x2 ## 1, x2 ## 1; \
+ vpxor x2 ## 1, x1 ## 1, x1 ## 1; \
+ vpslld $13, x0 ## 2, x4 ## 2; \
+ vpsrld $(32 - 13), x0 ## 2, x0 ## 2; \
+ vpor x4 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor x0 ## 2, x1 ## 2, x1 ## 2; \
+ vpslld $3, x2 ## 2, x4 ## 2; \
+ vpsrld $(32 - 3), x2 ## 2, x2 ## 2; \
+ vpor x4 ## 2, x2 ## 2, x2 ## 2; \
+ vpxor x2 ## 2, x1 ## 2, x1 ## 2; \
+ vpslld $1, x1 ## 1, x4 ## 1; \
+ vpsrld $(32 - 1), x1 ## 1, x1 ## 1; \
+ vpor x4 ## 1, x1 ## 1, x1 ## 1; \
+ vpslld $3, x0 ## 1, x4 ## 1; \
+ vpxor x2 ## 1, x3 ## 1, x3 ## 1; \
+ vpxor x4 ## 1, x3 ## 1, x3 ## 1; \
+ get_key(i, 1, RK1); \
+ vpslld $1, x1 ## 2, x4 ## 2; \
+ vpsrld $(32 - 1), x1 ## 2, x1 ## 2; \
+ vpor x4 ## 2, x1 ## 2, x1 ## 2; \
+ vpslld $3, x0 ## 2, x4 ## 2; \
+ vpxor x2 ## 2, x3 ## 2, x3 ## 2; \
+ vpxor x4 ## 2, x3 ## 2, x3 ## 2; \
+ get_key(i, 3, RK3); \
+ vpslld $7, x3 ## 1, x4 ## 1; \
+ vpsrld $(32 - 7), x3 ## 1, x3 ## 1; \
+ vpor x4 ## 1, x3 ## 1, x3 ## 1; \
+ vpslld $7, x1 ## 1, x4 ## 1; \
+ vpxor x1 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor x3 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor x3 ## 1, x2 ## 1, x2 ## 1; \
+ vpxor x4 ## 1, x2 ## 1, x2 ## 1; \
+ get_key(i, 0, RK0); \
+ vpslld $7, x3 ## 2, x4 ## 2; \
+ vpsrld $(32 - 7), x3 ## 2, x3 ## 2; \
+ vpor x4 ## 2, x3 ## 2, x3 ## 2; \
+ vpslld $7, x1 ## 2, x4 ## 2; \
+ vpxor x1 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor x3 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor x3 ## 2, x2 ## 2, x2 ## 2; \
+ vpxor x4 ## 2, x2 ## 2, x2 ## 2; \
+ get_key(i, 2, RK2); \
+ vpxor RK1, x1 ## 1, x1 ## 1; \
+ vpxor RK3, x3 ## 1, x3 ## 1; \
+ vpslld $5, x0 ## 1, x4 ## 1; \
+ vpsrld $(32 - 5), x0 ## 1, x0 ## 1; \
+ vpor x4 ## 1, x0 ## 1, x0 ## 1; \
+ vpslld $22, x2 ## 1, x4 ## 1; \
+ vpsrld $(32 - 22), x2 ## 1, x2 ## 1; \
+ vpor x4 ## 1, x2 ## 1, x2 ## 1; \
+ vpxor RK0, x0 ## 1, x0 ## 1; \
+ vpxor RK2, x2 ## 1, x2 ## 1; \
+ vpxor RK1, x1 ## 2, x1 ## 2; \
+ vpxor RK3, x3 ## 2, x3 ## 2; \
+ vpslld $5, x0 ## 2, x4 ## 2; \
+ vpsrld $(32 - 5), x0 ## 2, x0 ## 2; \
+ vpor x4 ## 2, x0 ## 2, x0 ## 2; \
+ vpslld $22, x2 ## 2, x4 ## 2; \
+ vpsrld $(32 - 22), x2 ## 2, x2 ## 2; \
+ vpor x4 ## 2, x2 ## 2, x2 ## 2; \
+ vpxor RK0, x0 ## 2, x0 ## 2; \
+ vpxor RK2, x2 ## 2, x2 ## 2;
+
+#define KL2(x0, x1, x2, x3, x4, i) \
+ vpxor RK0, x0 ## 1, x0 ## 1; \
+ vpxor RK2, x2 ## 1, x2 ## 1; \
+ vpsrld $5, x0 ## 1, x4 ## 1; \
+ vpslld $(32 - 5), x0 ## 1, x0 ## 1; \
+ vpor x4 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor RK3, x3 ## 1, x3 ## 1; \
+ vpxor RK1, x1 ## 1, x1 ## 1; \
+ vpsrld $22, x2 ## 1, x4 ## 1; \
+ vpslld $(32 - 22), x2 ## 1, x2 ## 1; \
+ vpor x4 ## 1, x2 ## 1, x2 ## 1; \
+ vpxor x3 ## 1, x2 ## 1, x2 ## 1; \
+ vpxor RK0, x0 ## 2, x0 ## 2; \
+ vpxor RK2, x2 ## 2, x2 ## 2; \
+ vpsrld $5, x0 ## 2, x4 ## 2; \
+ vpslld $(32 - 5), x0 ## 2, x0 ## 2; \
+ vpor x4 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor RK3, x3 ## 2, x3 ## 2; \
+ vpxor RK1, x1 ## 2, x1 ## 2; \
+ vpsrld $22, x2 ## 2, x4 ## 2; \
+ vpslld $(32 - 22), x2 ## 2, x2 ## 2; \
+ vpor x4 ## 2, x2 ## 2, x2 ## 2; \
+ vpxor x3 ## 2, x2 ## 2, x2 ## 2; \
+ vpxor x3 ## 1, x0 ## 1, x0 ## 1; \
+ vpslld $7, x1 ## 1, x4 ## 1; \
+ vpxor x1 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor x4 ## 1, x2 ## 1, x2 ## 1; \
+ vpsrld $1, x1 ## 1, x4 ## 1; \
+ vpslld $(32 - 1), x1 ## 1, x1 ## 1; \
+ vpor x4 ## 1, x1 ## 1, x1 ## 1; \
+ vpxor x3 ## 2, x0 ## 2, x0 ## 2; \
+ vpslld $7, x1 ## 2, x4 ## 2; \
+ vpxor x1 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor x4 ## 2, x2 ## 2, x2 ## 2; \
+ vpsrld $1, x1 ## 2, x4 ## 2; \
+ vpslld $(32 - 1), x1 ## 2, x1 ## 2; \
+ vpor x4 ## 2, x1 ## 2, x1 ## 2; \
+ vpsrld $7, x3 ## 1, x4 ## 1; \
+ vpslld $(32 - 7), x3 ## 1, x3 ## 1; \
+ vpor x4 ## 1, x3 ## 1, x3 ## 1; \
+ vpxor x0 ## 1, x1 ## 1, x1 ## 1; \
+ vpslld $3, x0 ## 1, x4 ## 1; \
+ vpxor x4 ## 1, x3 ## 1, x3 ## 1; \
+ vpsrld $7, x3 ## 2, x4 ## 2; \
+ vpslld $(32 - 7), x3 ## 2, x3 ## 2; \
+ vpor x4 ## 2, x3 ## 2, x3 ## 2; \
+ vpxor x0 ## 2, x1 ## 2, x1 ## 2; \
+ vpslld $3, x0 ## 2, x4 ## 2; \
+ vpxor x4 ## 2, x3 ## 2, x3 ## 2; \
+ vpsrld $13, x0 ## 1, x4 ## 1; \
+ vpslld $(32 - 13), x0 ## 1, x0 ## 1; \
+ vpor x4 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor x2 ## 1, x1 ## 1, x1 ## 1; \
+ vpxor x2 ## 1, x3 ## 1, x3 ## 1; \
+ vpsrld $3, x2 ## 1, x4 ## 1; \
+ vpslld $(32 - 3), x2 ## 1, x2 ## 1; \
+ vpor x4 ## 1, x2 ## 1, x2 ## 1; \
+ vpsrld $13, x0 ## 2, x4 ## 2; \
+ vpslld $(32 - 13), x0 ## 2, x0 ## 2; \
+ vpor x4 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor x2 ## 2, x1 ## 2, x1 ## 2; \
+ vpxor x2 ## 2, x3 ## 2, x3 ## 2; \
+ vpsrld $3, x2 ## 2, x4 ## 2; \
+ vpslld $(32 - 3), x2 ## 2, x2 ## 2; \
+ vpor x4 ## 2, x2 ## 2, x2 ## 2;
+
+#define S(SBOX, x0, x1, x2, x3, x4) \
+ SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
+ SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2);
+
+#define SP(SBOX, x0, x1, x2, x3, x4, i) \
+ get_key(i, 0, RK0); \
+ SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ get_key(i, 2, RK2); \
+ SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ get_key(i, 3, RK3); \
+ SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
+ get_key(i, 1, RK1); \
+ SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
+
+#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ vpunpckldq x1, x0, t0; \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x3; \
+ \
+ vpunpcklqdq t1, t0, x0; \
+ vpunpckhqdq t1, t0, x1; \
+ vpunpcklqdq x3, t2, x2; \
+ vpunpckhqdq x3, t2, x3;
+
+#define read_blocks(x0, x1, x2, x3, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
+
+#define write_blocks(x0, x1, x2, x3, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
+
+SYM_FUNC_START_LOCAL(__serpent_enc_blk8_avx)
+ /* input:
+ * %rdi: ctx, CTX
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
+ * output:
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
+ */
+
+ vpcmpeqd RNOT, RNOT, RNOT;
+
+ read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+
+ K2(RA, RB, RC, RD, RE, 0);
+ S(S0, RA, RB, RC, RD, RE); LK2(RC, RB, RD, RA, RE, 1);
+ S(S1, RC, RB, RD, RA, RE); LK2(RE, RD, RA, RC, RB, 2);
+ S(S2, RE, RD, RA, RC, RB); LK2(RB, RD, RE, RC, RA, 3);
+ S(S3, RB, RD, RE, RC, RA); LK2(RC, RA, RD, RB, RE, 4);
+ S(S4, RC, RA, RD, RB, RE); LK2(RA, RD, RB, RE, RC, 5);
+ S(S5, RA, RD, RB, RE, RC); LK2(RC, RA, RD, RE, RB, 6);
+ S(S6, RC, RA, RD, RE, RB); LK2(RD, RB, RA, RE, RC, 7);
+ S(S7, RD, RB, RA, RE, RC); LK2(RC, RA, RE, RD, RB, 8);
+ S(S0, RC, RA, RE, RD, RB); LK2(RE, RA, RD, RC, RB, 9);
+ S(S1, RE, RA, RD, RC, RB); LK2(RB, RD, RC, RE, RA, 10);
+ S(S2, RB, RD, RC, RE, RA); LK2(RA, RD, RB, RE, RC, 11);
+ S(S3, RA, RD, RB, RE, RC); LK2(RE, RC, RD, RA, RB, 12);
+ S(S4, RE, RC, RD, RA, RB); LK2(RC, RD, RA, RB, RE, 13);
+ S(S5, RC, RD, RA, RB, RE); LK2(RE, RC, RD, RB, RA, 14);
+ S(S6, RE, RC, RD, RB, RA); LK2(RD, RA, RC, RB, RE, 15);
+ S(S7, RD, RA, RC, RB, RE); LK2(RE, RC, RB, RD, RA, 16);
+ S(S0, RE, RC, RB, RD, RA); LK2(RB, RC, RD, RE, RA, 17);
+ S(S1, RB, RC, RD, RE, RA); LK2(RA, RD, RE, RB, RC, 18);
+ S(S2, RA, RD, RE, RB, RC); LK2(RC, RD, RA, RB, RE, 19);
+ S(S3, RC, RD, RA, RB, RE); LK2(RB, RE, RD, RC, RA, 20);
+ S(S4, RB, RE, RD, RC, RA); LK2(RE, RD, RC, RA, RB, 21);
+ S(S5, RE, RD, RC, RA, RB); LK2(RB, RE, RD, RA, RC, 22);
+ S(S6, RB, RE, RD, RA, RC); LK2(RD, RC, RE, RA, RB, 23);
+ S(S7, RD, RC, RE, RA, RB); LK2(RB, RE, RA, RD, RC, 24);
+ S(S0, RB, RE, RA, RD, RC); LK2(RA, RE, RD, RB, RC, 25);
+ S(S1, RA, RE, RD, RB, RC); LK2(RC, RD, RB, RA, RE, 26);
+ S(S2, RC, RD, RB, RA, RE); LK2(RE, RD, RC, RA, RB, 27);
+ S(S3, RE, RD, RC, RA, RB); LK2(RA, RB, RD, RE, RC, 28);
+ S(S4, RA, RB, RD, RE, RC); LK2(RB, RD, RE, RC, RA, 29);
+ S(S5, RB, RD, RE, RC, RA); LK2(RA, RB, RD, RC, RE, 30);
+ S(S6, RA, RB, RD, RC, RE); LK2(RD, RE, RB, RC, RA, 31);
+ S(S7, RD, RE, RB, RC, RA); K2(RA, RB, RC, RD, RE, 32);
+
+ write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+
+ RET;
+SYM_FUNC_END(__serpent_enc_blk8_avx)
+
+SYM_FUNC_START_LOCAL(__serpent_dec_blk8_avx)
+ /* input:
+ * %rdi: ctx, CTX
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: encrypted blocks
+ * output:
+ * RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2: decrypted blocks
+ */
+
+ vpcmpeqd RNOT, RNOT, RNOT;
+
+ read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+
+ K2(RA, RB, RC, RD, RE, 32);
+ SP(SI7, RA, RB, RC, RD, RE, 31); KL2(RB, RD, RA, RE, RC, 31);
+ SP(SI6, RB, RD, RA, RE, RC, 30); KL2(RA, RC, RE, RB, RD, 30);
+ SP(SI5, RA, RC, RE, RB, RD, 29); KL2(RC, RD, RA, RE, RB, 29);
+ SP(SI4, RC, RD, RA, RE, RB, 28); KL2(RC, RA, RB, RE, RD, 28);
+ SP(SI3, RC, RA, RB, RE, RD, 27); KL2(RB, RC, RD, RE, RA, 27);
+ SP(SI2, RB, RC, RD, RE, RA, 26); KL2(RC, RA, RE, RD, RB, 26);
+ SP(SI1, RC, RA, RE, RD, RB, 25); KL2(RB, RA, RE, RD, RC, 25);
+ SP(SI0, RB, RA, RE, RD, RC, 24); KL2(RE, RC, RA, RB, RD, 24);
+ SP(SI7, RE, RC, RA, RB, RD, 23); KL2(RC, RB, RE, RD, RA, 23);
+ SP(SI6, RC, RB, RE, RD, RA, 22); KL2(RE, RA, RD, RC, RB, 22);
+ SP(SI5, RE, RA, RD, RC, RB, 21); KL2(RA, RB, RE, RD, RC, 21);
+ SP(SI4, RA, RB, RE, RD, RC, 20); KL2(RA, RE, RC, RD, RB, 20);
+ SP(SI3, RA, RE, RC, RD, RB, 19); KL2(RC, RA, RB, RD, RE, 19);
+ SP(SI2, RC, RA, RB, RD, RE, 18); KL2(RA, RE, RD, RB, RC, 18);
+ SP(SI1, RA, RE, RD, RB, RC, 17); KL2(RC, RE, RD, RB, RA, 17);
+ SP(SI0, RC, RE, RD, RB, RA, 16); KL2(RD, RA, RE, RC, RB, 16);
+ SP(SI7, RD, RA, RE, RC, RB, 15); KL2(RA, RC, RD, RB, RE, 15);
+ SP(SI6, RA, RC, RD, RB, RE, 14); KL2(RD, RE, RB, RA, RC, 14);
+ SP(SI5, RD, RE, RB, RA, RC, 13); KL2(RE, RC, RD, RB, RA, 13);
+ SP(SI4, RE, RC, RD, RB, RA, 12); KL2(RE, RD, RA, RB, RC, 12);
+ SP(SI3, RE, RD, RA, RB, RC, 11); KL2(RA, RE, RC, RB, RD, 11);
+ SP(SI2, RA, RE, RC, RB, RD, 10); KL2(RE, RD, RB, RC, RA, 10);
+ SP(SI1, RE, RD, RB, RC, RA, 9); KL2(RA, RD, RB, RC, RE, 9);
+ SP(SI0, RA, RD, RB, RC, RE, 8); KL2(RB, RE, RD, RA, RC, 8);
+ SP(SI7, RB, RE, RD, RA, RC, 7); KL2(RE, RA, RB, RC, RD, 7);
+ SP(SI6, RE, RA, RB, RC, RD, 6); KL2(RB, RD, RC, RE, RA, 6);
+ SP(SI5, RB, RD, RC, RE, RA, 5); KL2(RD, RA, RB, RC, RE, 5);
+ SP(SI4, RD, RA, RB, RC, RE, 4); KL2(RD, RB, RE, RC, RA, 4);
+ SP(SI3, RD, RB, RE, RC, RA, 3); KL2(RE, RD, RA, RC, RB, 3);
+ SP(SI2, RE, RD, RA, RC, RB, 2); KL2(RD, RB, RC, RA, RE, 2);
+ SP(SI1, RD, RB, RC, RA, RE, 1); KL2(RE, RB, RC, RA, RD, 1);
+ S(SI0, RE, RB, RC, RA, RD); K2(RC, RD, RB, RE, RA, 0);
+
+ write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
+ write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
+
+ RET;
+SYM_FUNC_END(__serpent_dec_blk8_avx)
+
+SYM_FUNC_START(serpent_ecb_enc_8way_avx)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+
+ load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __serpent_enc_blk8_avx;
+
+ store_8way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(serpent_ecb_enc_8way_avx)
+
+SYM_FUNC_START(serpent_ecb_dec_8way_avx)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+
+ load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __serpent_dec_blk8_avx;
+
+ store_8way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(serpent_ecb_dec_8way_avx)
+
+SYM_FUNC_START(serpent_cbc_dec_8way_avx)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+
+ load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __serpent_dec_blk8_avx;
+
+ store_cbc_8way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(serpent_cbc_dec_8way_avx)
diff --git a/arch/x86/crypto/serpent-avx.h b/arch/x86/crypto/serpent-avx.h
new file mode 100644
index 000000000000..23f3361a0e72
--- /dev/null
+++ b/arch/x86/crypto/serpent-avx.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_X86_SERPENT_AVX_H
+#define ASM_X86_SERPENT_AVX_H
+
+#include <crypto/b128ops.h>
+#include <crypto/serpent.h>
+#include <linux/types.h>
+
+struct crypto_skcipher;
+
+#define SERPENT_PARALLEL_BLOCKS 8
+
+asmlinkage void serpent_ecb_enc_8way_avx(const void *ctx, u8 *dst,
+ const u8 *src);
+asmlinkage void serpent_ecb_dec_8way_avx(const void *ctx, u8 *dst,
+ const u8 *src);
+
+asmlinkage void serpent_cbc_dec_8way_avx(const void *ctx, u8 *dst,
+ const u8 *src);
+
+#endif
diff --git a/arch/x86/crypto/serpent-avx2-asm_64.S b/arch/x86/crypto/serpent-avx2-asm_64.S
new file mode 100644
index 000000000000..6d60c50593a9
--- /dev/null
+++ b/arch/x86/crypto/serpent-avx2-asm_64.S
@@ -0,0 +1,724 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * x86_64/AVX2 assembler optimized version of Serpent
+ *
+ * Copyright Ā© 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * Based on AVX assembler implementation of Serpent by:
+ * Copyright Ā© 2012 Johannes Goetzfried
+ * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+#include "glue_helper-asm-avx2.S"
+
+.file "serpent-avx2-asm_64.S"
+
+.section .rodata.cst16.bswap128_mask, "aM", @progbits, 16
+.align 16
+.Lbswap128_mask:
+ .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+
+.text
+
+#define CTX %rdi
+
+#define RNOT %ymm0
+#define tp %ymm1
+
+#define RA1 %ymm2
+#define RA2 %ymm3
+#define RB1 %ymm4
+#define RB2 %ymm5
+#define RC1 %ymm6
+#define RC2 %ymm7
+#define RD1 %ymm8
+#define RD2 %ymm9
+#define RE1 %ymm10
+#define RE2 %ymm11
+
+#define RK0 %ymm12
+#define RK1 %ymm13
+#define RK2 %ymm14
+#define RK3 %ymm15
+
+#define RK0x %xmm12
+#define RK1x %xmm13
+#define RK2x %xmm14
+#define RK3x %xmm15
+
+#define S0_1(x0, x1, x2, x3, x4) \
+ vpor x0, x3, tp; \
+ vpxor x3, x0, x0; \
+ vpxor x2, x3, x4; \
+ vpxor RNOT, x4, x4; \
+ vpxor x1, tp, x3; \
+ vpand x0, x1, x1; \
+ vpxor x4, x1, x1; \
+ vpxor x0, x2, x2;
+#define S0_2(x0, x1, x2, x3, x4) \
+ vpxor x3, x0, x0; \
+ vpor x0, x4, x4; \
+ vpxor x2, x0, x0; \
+ vpand x1, x2, x2; \
+ vpxor x2, x3, x3; \
+ vpxor RNOT, x1, x1; \
+ vpxor x4, x2, x2; \
+ vpxor x2, x1, x1;
+
+#define S1_1(x0, x1, x2, x3, x4) \
+ vpxor x0, x1, tp; \
+ vpxor x3, x0, x0; \
+ vpxor RNOT, x3, x3; \
+ vpand tp, x1, x4; \
+ vpor tp, x0, x0; \
+ vpxor x2, x3, x3; \
+ vpxor x3, x0, x0; \
+ vpxor x3, tp, x1;
+#define S1_2(x0, x1, x2, x3, x4) \
+ vpxor x4, x3, x3; \
+ vpor x4, x1, x1; \
+ vpxor x2, x4, x4; \
+ vpand x0, x2, x2; \
+ vpxor x1, x2, x2; \
+ vpor x0, x1, x1; \
+ vpxor RNOT, x0, x0; \
+ vpxor x2, x0, x0; \
+ vpxor x1, x4, x4;
+
+#define S2_1(x0, x1, x2, x3, x4) \
+ vpxor RNOT, x3, x3; \
+ vpxor x0, x1, x1; \
+ vpand x2, x0, tp; \
+ vpxor x3, tp, tp; \
+ vpor x0, x3, x3; \
+ vpxor x1, x2, x2; \
+ vpxor x1, x3, x3; \
+ vpand tp, x1, x1;
+#define S2_2(x0, x1, x2, x3, x4) \
+ vpxor x2, tp, tp; \
+ vpand x3, x2, x2; \
+ vpor x1, x3, x3; \
+ vpxor RNOT, tp, tp; \
+ vpxor tp, x3, x3; \
+ vpxor tp, x0, x4; \
+ vpxor x2, tp, x0; \
+ vpor x2, x1, x1;
+
+#define S3_1(x0, x1, x2, x3, x4) \
+ vpxor x3, x1, tp; \
+ vpor x0, x3, x3; \
+ vpand x0, x1, x4; \
+ vpxor x2, x0, x0; \
+ vpxor tp, x2, x2; \
+ vpand x3, tp, x1; \
+ vpxor x3, x2, x2; \
+ vpor x4, x0, x0; \
+ vpxor x3, x4, x4;
+#define S3_2(x0, x1, x2, x3, x4) \
+ vpxor x0, x1, x1; \
+ vpand x3, x0, x0; \
+ vpand x4, x3, x3; \
+ vpxor x2, x3, x3; \
+ vpor x1, x4, x4; \
+ vpand x1, x2, x2; \
+ vpxor x3, x4, x4; \
+ vpxor x3, x0, x0; \
+ vpxor x2, x3, x3;
+
+#define S4_1(x0, x1, x2, x3, x4) \
+ vpand x0, x3, tp; \
+ vpxor x3, x0, x0; \
+ vpxor x2, tp, tp; \
+ vpor x3, x2, x2; \
+ vpxor x1, x0, x0; \
+ vpxor tp, x3, x4; \
+ vpor x0, x2, x2; \
+ vpxor x1, x2, x2;
+#define S4_2(x0, x1, x2, x3, x4) \
+ vpand x0, x1, x1; \
+ vpxor x4, x1, x1; \
+ vpand x2, x4, x4; \
+ vpxor tp, x2, x2; \
+ vpxor x0, x4, x4; \
+ vpor x1, tp, x3; \
+ vpxor RNOT, x1, x1; \
+ vpxor x0, x3, x3;
+
+#define S5_1(x0, x1, x2, x3, x4) \
+ vpor x0, x1, tp; \
+ vpxor tp, x2, x2; \
+ vpxor RNOT, x3, x3; \
+ vpxor x0, x1, x4; \
+ vpxor x2, x0, x0; \
+ vpand x4, tp, x1; \
+ vpor x3, x4, x4; \
+ vpxor x0, x4, x4;
+#define S5_2(x0, x1, x2, x3, x4) \
+ vpand x3, x0, x0; \
+ vpxor x3, x1, x1; \
+ vpxor x2, x3, x3; \
+ vpxor x1, x0, x0; \
+ vpand x4, x2, x2; \
+ vpxor x2, x1, x1; \
+ vpand x0, x2, x2; \
+ vpxor x2, x3, x3;
+
+#define S6_1(x0, x1, x2, x3, x4) \
+ vpxor x0, x3, x3; \
+ vpxor x2, x1, tp; \
+ vpxor x0, x2, x2; \
+ vpand x3, x0, x0; \
+ vpor x3, tp, tp; \
+ vpxor RNOT, x1, x4; \
+ vpxor tp, x0, x0; \
+ vpxor x2, tp, x1;
+#define S6_2(x0, x1, x2, x3, x4) \
+ vpxor x4, x3, x3; \
+ vpxor x0, x4, x4; \
+ vpand x0, x2, x2; \
+ vpxor x1, x4, x4; \
+ vpxor x3, x2, x2; \
+ vpand x1, x3, x3; \
+ vpxor x0, x3, x3; \
+ vpxor x2, x1, x1;
+
+#define S7_1(x0, x1, x2, x3, x4) \
+ vpxor RNOT, x1, tp; \
+ vpxor RNOT, x0, x0; \
+ vpand x2, tp, x1; \
+ vpxor x3, x1, x1; \
+ vpor tp, x3, x3; \
+ vpxor x2, tp, x4; \
+ vpxor x3, x2, x2; \
+ vpxor x0, x3, x3; \
+ vpor x1, x0, x0;
+#define S7_2(x0, x1, x2, x3, x4) \
+ vpand x0, x2, x2; \
+ vpxor x4, x0, x0; \
+ vpxor x3, x4, x4; \
+ vpand x0, x3, x3; \
+ vpxor x1, x4, x4; \
+ vpxor x4, x2, x2; \
+ vpxor x1, x3, x3; \
+ vpor x0, x4, x4; \
+ vpxor x1, x4, x4;
+
+#define SI0_1(x0, x1, x2, x3, x4) \
+ vpxor x0, x1, x1; \
+ vpor x1, x3, tp; \
+ vpxor x1, x3, x4; \
+ vpxor RNOT, x0, x0; \
+ vpxor tp, x2, x2; \
+ vpxor x0, tp, x3; \
+ vpand x1, x0, x0; \
+ vpxor x2, x0, x0;
+#define SI0_2(x0, x1, x2, x3, x4) \
+ vpand x3, x2, x2; \
+ vpxor x4, x3, x3; \
+ vpxor x3, x2, x2; \
+ vpxor x3, x1, x1; \
+ vpand x0, x3, x3; \
+ vpxor x0, x1, x1; \
+ vpxor x2, x0, x0; \
+ vpxor x3, x4, x4;
+
+#define SI1_1(x0, x1, x2, x3, x4) \
+ vpxor x3, x1, x1; \
+ vpxor x2, x0, tp; \
+ vpxor RNOT, x2, x2; \
+ vpor x1, x0, x4; \
+ vpxor x3, x4, x4; \
+ vpand x1, x3, x3; \
+ vpxor x2, x1, x1; \
+ vpand x4, x2, x2;
+#define SI1_2(x0, x1, x2, x3, x4) \
+ vpxor x1, x4, x4; \
+ vpor x3, x1, x1; \
+ vpxor tp, x3, x3; \
+ vpxor tp, x2, x2; \
+ vpor x4, tp, x0; \
+ vpxor x4, x2, x2; \
+ vpxor x0, x1, x1; \
+ vpxor x1, x4, x4;
+
+#define SI2_1(x0, x1, x2, x3, x4) \
+ vpxor x1, x2, x2; \
+ vpxor RNOT, x3, tp; \
+ vpor x2, tp, tp; \
+ vpxor x3, x2, x2; \
+ vpxor x0, x3, x4; \
+ vpxor x1, tp, x3; \
+ vpor x2, x1, x1; \
+ vpxor x0, x2, x2;
+#define SI2_2(x0, x1, x2, x3, x4) \
+ vpxor x4, x1, x1; \
+ vpor x3, x4, x4; \
+ vpxor x3, x2, x2; \
+ vpxor x2, x4, x4; \
+ vpand x1, x2, x2; \
+ vpxor x3, x2, x2; \
+ vpxor x4, x3, x3; \
+ vpxor x0, x4, x4;
+
+#define SI3_1(x0, x1, x2, x3, x4) \
+ vpxor x1, x2, x2; \
+ vpand x2, x1, tp; \
+ vpxor x0, tp, tp; \
+ vpor x1, x0, x0; \
+ vpxor x3, x1, x4; \
+ vpxor x3, x0, x0; \
+ vpor tp, x3, x3; \
+ vpxor x2, tp, x1;
+#define SI3_2(x0, x1, x2, x3, x4) \
+ vpxor x3, x1, x1; \
+ vpxor x2, x0, x0; \
+ vpxor x3, x2, x2; \
+ vpand x1, x3, x3; \
+ vpxor x0, x1, x1; \
+ vpand x2, x0, x0; \
+ vpxor x3, x4, x4; \
+ vpxor x0, x3, x3; \
+ vpxor x1, x0, x0;
+
+#define SI4_1(x0, x1, x2, x3, x4) \
+ vpxor x3, x2, x2; \
+ vpand x1, x0, tp; \
+ vpxor x2, tp, tp; \
+ vpor x3, x2, x2; \
+ vpxor RNOT, x0, x4; \
+ vpxor tp, x1, x1; \
+ vpxor x2, tp, x0; \
+ vpand x4, x2, x2;
+#define SI4_2(x0, x1, x2, x3, x4) \
+ vpxor x0, x2, x2; \
+ vpor x4, x0, x0; \
+ vpxor x3, x0, x0; \
+ vpand x2, x3, x3; \
+ vpxor x3, x4, x4; \
+ vpxor x1, x3, x3; \
+ vpand x0, x1, x1; \
+ vpxor x1, x4, x4; \
+ vpxor x3, x0, x0;
+
+#define SI5_1(x0, x1, x2, x3, x4) \
+ vpor x2, x1, tp; \
+ vpxor x1, x2, x2; \
+ vpxor x3, tp, tp; \
+ vpand x1, x3, x3; \
+ vpxor x3, x2, x2; \
+ vpor x0, x3, x3; \
+ vpxor RNOT, x0, x0; \
+ vpxor x2, x3, x3; \
+ vpor x0, x2, x2;
+#define SI5_2(x0, x1, x2, x3, x4) \
+ vpxor tp, x1, x4; \
+ vpxor x4, x2, x2; \
+ vpand x0, x4, x4; \
+ vpxor tp, x0, x0; \
+ vpxor x3, tp, x1; \
+ vpand x2, x0, x0; \
+ vpxor x3, x2, x2; \
+ vpxor x2, x0, x0; \
+ vpxor x4, x2, x2; \
+ vpxor x3, x4, x4;
+
+#define SI6_1(x0, x1, x2, x3, x4) \
+ vpxor x2, x0, x0; \
+ vpand x3, x0, tp; \
+ vpxor x3, x2, x2; \
+ vpxor x2, tp, tp; \
+ vpxor x1, x3, x3; \
+ vpor x0, x2, x2; \
+ vpxor x3, x2, x2; \
+ vpand tp, x3, x3;
+#define SI6_2(x0, x1, x2, x3, x4) \
+ vpxor RNOT, tp, tp; \
+ vpxor x1, x3, x3; \
+ vpand x2, x1, x1; \
+ vpxor tp, x0, x4; \
+ vpxor x4, x3, x3; \
+ vpxor x2, x4, x4; \
+ vpxor x1, tp, x0; \
+ vpxor x0, x2, x2;
+
+#define SI7_1(x0, x1, x2, x3, x4) \
+ vpand x0, x3, tp; \
+ vpxor x2, x0, x0; \
+ vpor x3, x2, x2; \
+ vpxor x1, x3, x4; \
+ vpxor RNOT, x0, x0; \
+ vpor tp, x1, x1; \
+ vpxor x0, x4, x4; \
+ vpand x2, x0, x0; \
+ vpxor x1, x0, x0;
+#define SI7_2(x0, x1, x2, x3, x4) \
+ vpand x2, x1, x1; \
+ vpxor x2, tp, x3; \
+ vpxor x3, x4, x4; \
+ vpand x3, x2, x2; \
+ vpor x0, x3, x3; \
+ vpxor x4, x1, x1; \
+ vpxor x4, x3, x3; \
+ vpand x0, x4, x4; \
+ vpxor x2, x4, x4;
+
+#define get_key(i,j,t) \
+ vpbroadcastd (4*(i)+(j))*4(CTX), t;
+
+#define K2(x0, x1, x2, x3, x4, i) \
+ get_key(i, 0, RK0); \
+ get_key(i, 1, RK1); \
+ get_key(i, 2, RK2); \
+ get_key(i, 3, RK3); \
+ vpxor RK0, x0 ## 1, x0 ## 1; \
+ vpxor RK1, x1 ## 1, x1 ## 1; \
+ vpxor RK2, x2 ## 1, x2 ## 1; \
+ vpxor RK3, x3 ## 1, x3 ## 1; \
+ vpxor RK0, x0 ## 2, x0 ## 2; \
+ vpxor RK1, x1 ## 2, x1 ## 2; \
+ vpxor RK2, x2 ## 2, x2 ## 2; \
+ vpxor RK3, x3 ## 2, x3 ## 2;
+
+#define LK2(x0, x1, x2, x3, x4, i) \
+ vpslld $13, x0 ## 1, x4 ## 1; \
+ vpsrld $(32 - 13), x0 ## 1, x0 ## 1; \
+ vpor x4 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor x0 ## 1, x1 ## 1, x1 ## 1; \
+ vpslld $3, x2 ## 1, x4 ## 1; \
+ vpsrld $(32 - 3), x2 ## 1, x2 ## 1; \
+ vpor x4 ## 1, x2 ## 1, x2 ## 1; \
+ vpxor x2 ## 1, x1 ## 1, x1 ## 1; \
+ vpslld $13, x0 ## 2, x4 ## 2; \
+ vpsrld $(32 - 13), x0 ## 2, x0 ## 2; \
+ vpor x4 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor x0 ## 2, x1 ## 2, x1 ## 2; \
+ vpslld $3, x2 ## 2, x4 ## 2; \
+ vpsrld $(32 - 3), x2 ## 2, x2 ## 2; \
+ vpor x4 ## 2, x2 ## 2, x2 ## 2; \
+ vpxor x2 ## 2, x1 ## 2, x1 ## 2; \
+ vpslld $1, x1 ## 1, x4 ## 1; \
+ vpsrld $(32 - 1), x1 ## 1, x1 ## 1; \
+ vpor x4 ## 1, x1 ## 1, x1 ## 1; \
+ vpslld $3, x0 ## 1, x4 ## 1; \
+ vpxor x2 ## 1, x3 ## 1, x3 ## 1; \
+ vpxor x4 ## 1, x3 ## 1, x3 ## 1; \
+ get_key(i, 1, RK1); \
+ vpslld $1, x1 ## 2, x4 ## 2; \
+ vpsrld $(32 - 1), x1 ## 2, x1 ## 2; \
+ vpor x4 ## 2, x1 ## 2, x1 ## 2; \
+ vpslld $3, x0 ## 2, x4 ## 2; \
+ vpxor x2 ## 2, x3 ## 2, x3 ## 2; \
+ vpxor x4 ## 2, x3 ## 2, x3 ## 2; \
+ get_key(i, 3, RK3); \
+ vpslld $7, x3 ## 1, x4 ## 1; \
+ vpsrld $(32 - 7), x3 ## 1, x3 ## 1; \
+ vpor x4 ## 1, x3 ## 1, x3 ## 1; \
+ vpslld $7, x1 ## 1, x4 ## 1; \
+ vpxor x1 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor x3 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor x3 ## 1, x2 ## 1, x2 ## 1; \
+ vpxor x4 ## 1, x2 ## 1, x2 ## 1; \
+ get_key(i, 0, RK0); \
+ vpslld $7, x3 ## 2, x4 ## 2; \
+ vpsrld $(32 - 7), x3 ## 2, x3 ## 2; \
+ vpor x4 ## 2, x3 ## 2, x3 ## 2; \
+ vpslld $7, x1 ## 2, x4 ## 2; \
+ vpxor x1 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor x3 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor x3 ## 2, x2 ## 2, x2 ## 2; \
+ vpxor x4 ## 2, x2 ## 2, x2 ## 2; \
+ get_key(i, 2, RK2); \
+ vpxor RK1, x1 ## 1, x1 ## 1; \
+ vpxor RK3, x3 ## 1, x3 ## 1; \
+ vpslld $5, x0 ## 1, x4 ## 1; \
+ vpsrld $(32 - 5), x0 ## 1, x0 ## 1; \
+ vpor x4 ## 1, x0 ## 1, x0 ## 1; \
+ vpslld $22, x2 ## 1, x4 ## 1; \
+ vpsrld $(32 - 22), x2 ## 1, x2 ## 1; \
+ vpor x4 ## 1, x2 ## 1, x2 ## 1; \
+ vpxor RK0, x0 ## 1, x0 ## 1; \
+ vpxor RK2, x2 ## 1, x2 ## 1; \
+ vpxor RK1, x1 ## 2, x1 ## 2; \
+ vpxor RK3, x3 ## 2, x3 ## 2; \
+ vpslld $5, x0 ## 2, x4 ## 2; \
+ vpsrld $(32 - 5), x0 ## 2, x0 ## 2; \
+ vpor x4 ## 2, x0 ## 2, x0 ## 2; \
+ vpslld $22, x2 ## 2, x4 ## 2; \
+ vpsrld $(32 - 22), x2 ## 2, x2 ## 2; \
+ vpor x4 ## 2, x2 ## 2, x2 ## 2; \
+ vpxor RK0, x0 ## 2, x0 ## 2; \
+ vpxor RK2, x2 ## 2, x2 ## 2;
+
+#define KL2(x0, x1, x2, x3, x4, i) \
+ vpxor RK0, x0 ## 1, x0 ## 1; \
+ vpxor RK2, x2 ## 1, x2 ## 1; \
+ vpsrld $5, x0 ## 1, x4 ## 1; \
+ vpslld $(32 - 5), x0 ## 1, x0 ## 1; \
+ vpor x4 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor RK3, x3 ## 1, x3 ## 1; \
+ vpxor RK1, x1 ## 1, x1 ## 1; \
+ vpsrld $22, x2 ## 1, x4 ## 1; \
+ vpslld $(32 - 22), x2 ## 1, x2 ## 1; \
+ vpor x4 ## 1, x2 ## 1, x2 ## 1; \
+ vpxor x3 ## 1, x2 ## 1, x2 ## 1; \
+ vpxor RK0, x0 ## 2, x0 ## 2; \
+ vpxor RK2, x2 ## 2, x2 ## 2; \
+ vpsrld $5, x0 ## 2, x4 ## 2; \
+ vpslld $(32 - 5), x0 ## 2, x0 ## 2; \
+ vpor x4 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor RK3, x3 ## 2, x3 ## 2; \
+ vpxor RK1, x1 ## 2, x1 ## 2; \
+ vpsrld $22, x2 ## 2, x4 ## 2; \
+ vpslld $(32 - 22), x2 ## 2, x2 ## 2; \
+ vpor x4 ## 2, x2 ## 2, x2 ## 2; \
+ vpxor x3 ## 2, x2 ## 2, x2 ## 2; \
+ vpxor x3 ## 1, x0 ## 1, x0 ## 1; \
+ vpslld $7, x1 ## 1, x4 ## 1; \
+ vpxor x1 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor x4 ## 1, x2 ## 1, x2 ## 1; \
+ vpsrld $1, x1 ## 1, x4 ## 1; \
+ vpslld $(32 - 1), x1 ## 1, x1 ## 1; \
+ vpor x4 ## 1, x1 ## 1, x1 ## 1; \
+ vpxor x3 ## 2, x0 ## 2, x0 ## 2; \
+ vpslld $7, x1 ## 2, x4 ## 2; \
+ vpxor x1 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor x4 ## 2, x2 ## 2, x2 ## 2; \
+ vpsrld $1, x1 ## 2, x4 ## 2; \
+ vpslld $(32 - 1), x1 ## 2, x1 ## 2; \
+ vpor x4 ## 2, x1 ## 2, x1 ## 2; \
+ vpsrld $7, x3 ## 1, x4 ## 1; \
+ vpslld $(32 - 7), x3 ## 1, x3 ## 1; \
+ vpor x4 ## 1, x3 ## 1, x3 ## 1; \
+ vpxor x0 ## 1, x1 ## 1, x1 ## 1; \
+ vpslld $3, x0 ## 1, x4 ## 1; \
+ vpxor x4 ## 1, x3 ## 1, x3 ## 1; \
+ vpsrld $7, x3 ## 2, x4 ## 2; \
+ vpslld $(32 - 7), x3 ## 2, x3 ## 2; \
+ vpor x4 ## 2, x3 ## 2, x3 ## 2; \
+ vpxor x0 ## 2, x1 ## 2, x1 ## 2; \
+ vpslld $3, x0 ## 2, x4 ## 2; \
+ vpxor x4 ## 2, x3 ## 2, x3 ## 2; \
+ vpsrld $13, x0 ## 1, x4 ## 1; \
+ vpslld $(32 - 13), x0 ## 1, x0 ## 1; \
+ vpor x4 ## 1, x0 ## 1, x0 ## 1; \
+ vpxor x2 ## 1, x1 ## 1, x1 ## 1; \
+ vpxor x2 ## 1, x3 ## 1, x3 ## 1; \
+ vpsrld $3, x2 ## 1, x4 ## 1; \
+ vpslld $(32 - 3), x2 ## 1, x2 ## 1; \
+ vpor x4 ## 1, x2 ## 1, x2 ## 1; \
+ vpsrld $13, x0 ## 2, x4 ## 2; \
+ vpslld $(32 - 13), x0 ## 2, x0 ## 2; \
+ vpor x4 ## 2, x0 ## 2, x0 ## 2; \
+ vpxor x2 ## 2, x1 ## 2, x1 ## 2; \
+ vpxor x2 ## 2, x3 ## 2, x3 ## 2; \
+ vpsrld $3, x2 ## 2, x4 ## 2; \
+ vpslld $(32 - 3), x2 ## 2, x2 ## 2; \
+ vpor x4 ## 2, x2 ## 2, x2 ## 2;
+
+#define S(SBOX, x0, x1, x2, x3, x4) \
+ SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
+ SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2);
+
+#define SP(SBOX, x0, x1, x2, x3, x4, i) \
+ get_key(i, 0, RK0); \
+ SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ get_key(i, 2, RK2); \
+ SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ get_key(i, 3, RK3); \
+ SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
+ get_key(i, 1, RK1); \
+ SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
+
+#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ vpunpckldq x1, x0, t0; \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x3; \
+ \
+ vpunpcklqdq t1, t0, x0; \
+ vpunpckhqdq t1, t0, x1; \
+ vpunpcklqdq x3, t2, x2; \
+ vpunpckhqdq x3, t2, x3;
+
+#define read_blocks(x0, x1, x2, x3, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
+
+#define write_blocks(x0, x1, x2, x3, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
+
+SYM_FUNC_START_LOCAL(__serpent_enc_blk16)
+ /* input:
+ * %rdi: ctx, CTX
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: plaintext
+ * output:
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: ciphertext
+ */
+
+ vpcmpeqd RNOT, RNOT, RNOT;
+
+ read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+
+ K2(RA, RB, RC, RD, RE, 0);
+ S(S0, RA, RB, RC, RD, RE); LK2(RC, RB, RD, RA, RE, 1);
+ S(S1, RC, RB, RD, RA, RE); LK2(RE, RD, RA, RC, RB, 2);
+ S(S2, RE, RD, RA, RC, RB); LK2(RB, RD, RE, RC, RA, 3);
+ S(S3, RB, RD, RE, RC, RA); LK2(RC, RA, RD, RB, RE, 4);
+ S(S4, RC, RA, RD, RB, RE); LK2(RA, RD, RB, RE, RC, 5);
+ S(S5, RA, RD, RB, RE, RC); LK2(RC, RA, RD, RE, RB, 6);
+ S(S6, RC, RA, RD, RE, RB); LK2(RD, RB, RA, RE, RC, 7);
+ S(S7, RD, RB, RA, RE, RC); LK2(RC, RA, RE, RD, RB, 8);
+ S(S0, RC, RA, RE, RD, RB); LK2(RE, RA, RD, RC, RB, 9);
+ S(S1, RE, RA, RD, RC, RB); LK2(RB, RD, RC, RE, RA, 10);
+ S(S2, RB, RD, RC, RE, RA); LK2(RA, RD, RB, RE, RC, 11);
+ S(S3, RA, RD, RB, RE, RC); LK2(RE, RC, RD, RA, RB, 12);
+ S(S4, RE, RC, RD, RA, RB); LK2(RC, RD, RA, RB, RE, 13);
+ S(S5, RC, RD, RA, RB, RE); LK2(RE, RC, RD, RB, RA, 14);
+ S(S6, RE, RC, RD, RB, RA); LK2(RD, RA, RC, RB, RE, 15);
+ S(S7, RD, RA, RC, RB, RE); LK2(RE, RC, RB, RD, RA, 16);
+ S(S0, RE, RC, RB, RD, RA); LK2(RB, RC, RD, RE, RA, 17);
+ S(S1, RB, RC, RD, RE, RA); LK2(RA, RD, RE, RB, RC, 18);
+ S(S2, RA, RD, RE, RB, RC); LK2(RC, RD, RA, RB, RE, 19);
+ S(S3, RC, RD, RA, RB, RE); LK2(RB, RE, RD, RC, RA, 20);
+ S(S4, RB, RE, RD, RC, RA); LK2(RE, RD, RC, RA, RB, 21);
+ S(S5, RE, RD, RC, RA, RB); LK2(RB, RE, RD, RA, RC, 22);
+ S(S6, RB, RE, RD, RA, RC); LK2(RD, RC, RE, RA, RB, 23);
+ S(S7, RD, RC, RE, RA, RB); LK2(RB, RE, RA, RD, RC, 24);
+ S(S0, RB, RE, RA, RD, RC); LK2(RA, RE, RD, RB, RC, 25);
+ S(S1, RA, RE, RD, RB, RC); LK2(RC, RD, RB, RA, RE, 26);
+ S(S2, RC, RD, RB, RA, RE); LK2(RE, RD, RC, RA, RB, 27);
+ S(S3, RE, RD, RC, RA, RB); LK2(RA, RB, RD, RE, RC, 28);
+ S(S4, RA, RB, RD, RE, RC); LK2(RB, RD, RE, RC, RA, 29);
+ S(S5, RB, RD, RE, RC, RA); LK2(RA, RB, RD, RC, RE, 30);
+ S(S6, RA, RB, RD, RC, RE); LK2(RD, RE, RB, RC, RA, 31);
+ S(S7, RD, RE, RB, RC, RA); K2(RA, RB, RC, RD, RE, 32);
+
+ write_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ write_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+
+ RET;
+SYM_FUNC_END(__serpent_enc_blk16)
+
+SYM_FUNC_START_LOCAL(__serpent_dec_blk16)
+ /* input:
+ * %rdi: ctx, CTX
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: ciphertext
+ * output:
+ * RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2: plaintext
+ */
+
+ vpcmpeqd RNOT, RNOT, RNOT;
+
+ read_blocks(RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ read_blocks(RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+
+ K2(RA, RB, RC, RD, RE, 32);
+ SP(SI7, RA, RB, RC, RD, RE, 31); KL2(RB, RD, RA, RE, RC, 31);
+ SP(SI6, RB, RD, RA, RE, RC, 30); KL2(RA, RC, RE, RB, RD, 30);
+ SP(SI5, RA, RC, RE, RB, RD, 29); KL2(RC, RD, RA, RE, RB, 29);
+ SP(SI4, RC, RD, RA, RE, RB, 28); KL2(RC, RA, RB, RE, RD, 28);
+ SP(SI3, RC, RA, RB, RE, RD, 27); KL2(RB, RC, RD, RE, RA, 27);
+ SP(SI2, RB, RC, RD, RE, RA, 26); KL2(RC, RA, RE, RD, RB, 26);
+ SP(SI1, RC, RA, RE, RD, RB, 25); KL2(RB, RA, RE, RD, RC, 25);
+ SP(SI0, RB, RA, RE, RD, RC, 24); KL2(RE, RC, RA, RB, RD, 24);
+ SP(SI7, RE, RC, RA, RB, RD, 23); KL2(RC, RB, RE, RD, RA, 23);
+ SP(SI6, RC, RB, RE, RD, RA, 22); KL2(RE, RA, RD, RC, RB, 22);
+ SP(SI5, RE, RA, RD, RC, RB, 21); KL2(RA, RB, RE, RD, RC, 21);
+ SP(SI4, RA, RB, RE, RD, RC, 20); KL2(RA, RE, RC, RD, RB, 20);
+ SP(SI3, RA, RE, RC, RD, RB, 19); KL2(RC, RA, RB, RD, RE, 19);
+ SP(SI2, RC, RA, RB, RD, RE, 18); KL2(RA, RE, RD, RB, RC, 18);
+ SP(SI1, RA, RE, RD, RB, RC, 17); KL2(RC, RE, RD, RB, RA, 17);
+ SP(SI0, RC, RE, RD, RB, RA, 16); KL2(RD, RA, RE, RC, RB, 16);
+ SP(SI7, RD, RA, RE, RC, RB, 15); KL2(RA, RC, RD, RB, RE, 15);
+ SP(SI6, RA, RC, RD, RB, RE, 14); KL2(RD, RE, RB, RA, RC, 14);
+ SP(SI5, RD, RE, RB, RA, RC, 13); KL2(RE, RC, RD, RB, RA, 13);
+ SP(SI4, RE, RC, RD, RB, RA, 12); KL2(RE, RD, RA, RB, RC, 12);
+ SP(SI3, RE, RD, RA, RB, RC, 11); KL2(RA, RE, RC, RB, RD, 11);
+ SP(SI2, RA, RE, RC, RB, RD, 10); KL2(RE, RD, RB, RC, RA, 10);
+ SP(SI1, RE, RD, RB, RC, RA, 9); KL2(RA, RD, RB, RC, RE, 9);
+ SP(SI0, RA, RD, RB, RC, RE, 8); KL2(RB, RE, RD, RA, RC, 8);
+ SP(SI7, RB, RE, RD, RA, RC, 7); KL2(RE, RA, RB, RC, RD, 7);
+ SP(SI6, RE, RA, RB, RC, RD, 6); KL2(RB, RD, RC, RE, RA, 6);
+ SP(SI5, RB, RD, RC, RE, RA, 5); KL2(RD, RA, RB, RC, RE, 5);
+ SP(SI4, RD, RA, RB, RC, RE, 4); KL2(RD, RB, RE, RC, RA, 4);
+ SP(SI3, RD, RB, RE, RC, RA, 3); KL2(RE, RD, RA, RC, RB, 3);
+ SP(SI2, RE, RD, RA, RC, RB, 2); KL2(RD, RB, RC, RA, RE, 2);
+ SP(SI1, RD, RB, RC, RA, RE, 1); KL2(RE, RB, RC, RA, RD, 1);
+ S(SI0, RE, RB, RC, RA, RD); K2(RC, RD, RB, RE, RA, 0);
+
+ write_blocks(RC1, RD1, RB1, RE1, RK0, RK1, RK2);
+ write_blocks(RC2, RD2, RB2, RE2, RK0, RK1, RK2);
+
+ RET;
+SYM_FUNC_END(__serpent_dec_blk16)
+
+SYM_FUNC_START(serpent_ecb_enc_16way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+
+ vzeroupper;
+
+ load_16way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __serpent_enc_blk16;
+
+ store_16way(%rsi, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ vzeroupper;
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(serpent_ecb_enc_16way)
+
+SYM_FUNC_START(serpent_ecb_dec_16way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+
+ vzeroupper;
+
+ load_16way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __serpent_dec_blk16;
+
+ store_16way(%rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2);
+
+ vzeroupper;
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(serpent_ecb_dec_16way)
+
+SYM_FUNC_START(serpent_cbc_dec_16way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+
+ vzeroupper;
+
+ load_16way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __serpent_dec_blk16;
+
+ store_cbc_16way(%rdx, %rsi, RC1, RD1, RB1, RE1, RC2, RD2, RB2, RE2,
+ RK0);
+
+ vzeroupper;
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(serpent_cbc_dec_16way)
diff --git a/arch/x86/crypto/serpent-sse2-i586-asm_32.S b/arch/x86/crypto/serpent-sse2-i586-asm_32.S
new file mode 100644
index 000000000000..8ccb03ad7cef
--- /dev/null
+++ b/arch/x86/crypto/serpent-sse2-i586-asm_32.S
@@ -0,0 +1,616 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Serpent Cipher 4-way parallel algorithm (i586/SSE2)
+ *
+ * Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * Based on crypto/serpent.c by
+ * Copyright (C) 2002 Dag Arne Osvik <osvik@ii.uib.no>
+ * 2003 Herbert Valerio Riedel <hvr@gnu.org>
+ */
+
+#include <linux/linkage.h>
+
+.file "serpent-sse2-i586-asm_32.S"
+.text
+
+#define arg_ctx 4
+#define arg_dst 8
+#define arg_src 12
+#define arg_xor 16
+
+/**********************************************************************
+ 4-way SSE2 serpent
+ **********************************************************************/
+#define CTX %edx
+
+#define RA %xmm0
+#define RB %xmm1
+#define RC %xmm2
+#define RD %xmm3
+#define RE %xmm4
+
+#define RT0 %xmm5
+#define RT1 %xmm6
+
+#define RNOT %xmm7
+
+#define get_key(i, j, t) \
+ movd (4*(i)+(j))*4(CTX), t; \
+ pshufd $0, t, t;
+
+#define K(x0, x1, x2, x3, x4, i) \
+ get_key(i, 0, x4); \
+ get_key(i, 1, RT0); \
+ get_key(i, 2, RT1); \
+ pxor x4, x0; \
+ pxor RT0, x1; \
+ pxor RT1, x2; \
+ get_key(i, 3, x4); \
+ pxor x4, x3;
+
+#define LK(x0, x1, x2, x3, x4, i) \
+ movdqa x0, x4; \
+ pslld $13, x0; \
+ psrld $(32 - 13), x4; \
+ por x4, x0; \
+ pxor x0, x1; \
+ movdqa x2, x4; \
+ pslld $3, x2; \
+ psrld $(32 - 3), x4; \
+ por x4, x2; \
+ pxor x2, x1; \
+ movdqa x1, x4; \
+ pslld $1, x1; \
+ psrld $(32 - 1), x4; \
+ por x4, x1; \
+ movdqa x0, x4; \
+ pslld $3, x4; \
+ pxor x2, x3; \
+ pxor x4, x3; \
+ movdqa x3, x4; \
+ pslld $7, x3; \
+ psrld $(32 - 7), x4; \
+ por x4, x3; \
+ movdqa x1, x4; \
+ pslld $7, x4; \
+ pxor x1, x0; \
+ pxor x3, x0; \
+ pxor x3, x2; \
+ pxor x4, x2; \
+ movdqa x0, x4; \
+ get_key(i, 1, RT0); \
+ pxor RT0, x1; \
+ get_key(i, 3, RT0); \
+ pxor RT0, x3; \
+ pslld $5, x0; \
+ psrld $(32 - 5), x4; \
+ por x4, x0; \
+ movdqa x2, x4; \
+ pslld $22, x2; \
+ psrld $(32 - 22), x4; \
+ por x4, x2; \
+ get_key(i, 0, RT0); \
+ pxor RT0, x0; \
+ get_key(i, 2, RT0); \
+ pxor RT0, x2;
+
+#define KL(x0, x1, x2, x3, x4, i) \
+ K(x0, x1, x2, x3, x4, i); \
+ movdqa x0, x4; \
+ psrld $5, x0; \
+ pslld $(32 - 5), x4; \
+ por x4, x0; \
+ movdqa x2, x4; \
+ psrld $22, x2; \
+ pslld $(32 - 22), x4; \
+ por x4, x2; \
+ pxor x3, x2; \
+ pxor x3, x0; \
+ movdqa x1, x4; \
+ pslld $7, x4; \
+ pxor x1, x0; \
+ pxor x4, x2; \
+ movdqa x1, x4; \
+ psrld $1, x1; \
+ pslld $(32 - 1), x4; \
+ por x4, x1; \
+ movdqa x3, x4; \
+ psrld $7, x3; \
+ pslld $(32 - 7), x4; \
+ por x4, x3; \
+ pxor x0, x1; \
+ movdqa x0, x4; \
+ pslld $3, x4; \
+ pxor x4, x3; \
+ movdqa x0, x4; \
+ psrld $13, x0; \
+ pslld $(32 - 13), x4; \
+ por x4, x0; \
+ pxor x2, x1; \
+ pxor x2, x3; \
+ movdqa x2, x4; \
+ psrld $3, x2; \
+ pslld $(32 - 3), x4; \
+ por x4, x2;
+
+#define S0(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ por x0, x3; \
+ pxor x4, x0; \
+ pxor x2, x4; \
+ pxor RNOT, x4; \
+ pxor x1, x3; \
+ pand x0, x1; \
+ pxor x4, x1; \
+ pxor x0, x2; \
+ pxor x3, x0; \
+ por x0, x4; \
+ pxor x2, x0; \
+ pand x1, x2; \
+ pxor x2, x3; \
+ pxor RNOT, x1; \
+ pxor x4, x2; \
+ pxor x2, x1;
+
+#define S1(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ pxor x0, x1; \
+ pxor x3, x0; \
+ pxor RNOT, x3; \
+ pand x1, x4; \
+ por x1, x0; \
+ pxor x2, x3; \
+ pxor x3, x0; \
+ pxor x3, x1; \
+ pxor x4, x3; \
+ por x4, x1; \
+ pxor x2, x4; \
+ pand x0, x2; \
+ pxor x1, x2; \
+ por x0, x1; \
+ pxor RNOT, x0; \
+ pxor x2, x0; \
+ pxor x1, x4;
+
+#define S2(x0, x1, x2, x3, x4) \
+ pxor RNOT, x3; \
+ pxor x0, x1; \
+ movdqa x0, x4; \
+ pand x2, x0; \
+ pxor x3, x0; \
+ por x4, x3; \
+ pxor x1, x2; \
+ pxor x1, x3; \
+ pand x0, x1; \
+ pxor x2, x0; \
+ pand x3, x2; \
+ por x1, x3; \
+ pxor RNOT, x0; \
+ pxor x0, x3; \
+ pxor x0, x4; \
+ pxor x2, x0; \
+ por x2, x1;
+
+#define S3(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ pxor x3, x1; \
+ por x0, x3; \
+ pand x0, x4; \
+ pxor x2, x0; \
+ pxor x1, x2; \
+ pand x3, x1; \
+ pxor x3, x2; \
+ por x4, x0; \
+ pxor x3, x4; \
+ pxor x0, x1; \
+ pand x3, x0; \
+ pand x4, x3; \
+ pxor x2, x3; \
+ por x1, x4; \
+ pand x1, x2; \
+ pxor x3, x4; \
+ pxor x3, x0; \
+ pxor x2, x3;
+
+#define S4(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ pand x0, x3; \
+ pxor x4, x0; \
+ pxor x2, x3; \
+ por x4, x2; \
+ pxor x1, x0; \
+ pxor x3, x4; \
+ por x0, x2; \
+ pxor x1, x2; \
+ pand x0, x1; \
+ pxor x4, x1; \
+ pand x2, x4; \
+ pxor x3, x2; \
+ pxor x0, x4; \
+ por x1, x3; \
+ pxor RNOT, x1; \
+ pxor x0, x3;
+
+#define S5(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ por x0, x1; \
+ pxor x1, x2; \
+ pxor RNOT, x3; \
+ pxor x0, x4; \
+ pxor x2, x0; \
+ pand x4, x1; \
+ por x3, x4; \
+ pxor x0, x4; \
+ pand x3, x0; \
+ pxor x3, x1; \
+ pxor x2, x3; \
+ pxor x1, x0; \
+ pand x4, x2; \
+ pxor x2, x1; \
+ pand x0, x2; \
+ pxor x2, x3;
+
+#define S6(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ pxor x0, x3; \
+ pxor x2, x1; \
+ pxor x0, x2; \
+ pand x3, x0; \
+ por x3, x1; \
+ pxor RNOT, x4; \
+ pxor x1, x0; \
+ pxor x2, x1; \
+ pxor x4, x3; \
+ pxor x0, x4; \
+ pand x0, x2; \
+ pxor x1, x4; \
+ pxor x3, x2; \
+ pand x1, x3; \
+ pxor x0, x3; \
+ pxor x2, x1;
+
+#define S7(x0, x1, x2, x3, x4) \
+ pxor RNOT, x1; \
+ movdqa x1, x4; \
+ pxor RNOT, x0; \
+ pand x2, x1; \
+ pxor x3, x1; \
+ por x4, x3; \
+ pxor x2, x4; \
+ pxor x3, x2; \
+ pxor x0, x3; \
+ por x1, x0; \
+ pand x0, x2; \
+ pxor x4, x0; \
+ pxor x3, x4; \
+ pand x0, x3; \
+ pxor x1, x4; \
+ pxor x4, x2; \
+ pxor x1, x3; \
+ por x0, x4; \
+ pxor x1, x4;
+
+#define SI0(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ pxor x0, x1; \
+ por x1, x3; \
+ pxor x1, x4; \
+ pxor RNOT, x0; \
+ pxor x3, x2; \
+ pxor x0, x3; \
+ pand x1, x0; \
+ pxor x2, x0; \
+ pand x3, x2; \
+ pxor x4, x3; \
+ pxor x3, x2; \
+ pxor x3, x1; \
+ pand x0, x3; \
+ pxor x0, x1; \
+ pxor x2, x0; \
+ pxor x3, x4;
+
+#define SI1(x0, x1, x2, x3, x4) \
+ pxor x3, x1; \
+ movdqa x0, x4; \
+ pxor x2, x0; \
+ pxor RNOT, x2; \
+ por x1, x4; \
+ pxor x3, x4; \
+ pand x1, x3; \
+ pxor x2, x1; \
+ pand x4, x2; \
+ pxor x1, x4; \
+ por x3, x1; \
+ pxor x0, x3; \
+ pxor x0, x2; \
+ por x4, x0; \
+ pxor x4, x2; \
+ pxor x0, x1; \
+ pxor x1, x4;
+
+#define SI2(x0, x1, x2, x3, x4) \
+ pxor x1, x2; \
+ movdqa x3, x4; \
+ pxor RNOT, x3; \
+ por x2, x3; \
+ pxor x4, x2; \
+ pxor x0, x4; \
+ pxor x1, x3; \
+ por x2, x1; \
+ pxor x0, x2; \
+ pxor x4, x1; \
+ por x3, x4; \
+ pxor x3, x2; \
+ pxor x2, x4; \
+ pand x1, x2; \
+ pxor x3, x2; \
+ pxor x4, x3; \
+ pxor x0, x4;
+
+#define SI3(x0, x1, x2, x3, x4) \
+ pxor x1, x2; \
+ movdqa x1, x4; \
+ pand x2, x1; \
+ pxor x0, x1; \
+ por x4, x0; \
+ pxor x3, x4; \
+ pxor x3, x0; \
+ por x1, x3; \
+ pxor x2, x1; \
+ pxor x3, x1; \
+ pxor x2, x0; \
+ pxor x3, x2; \
+ pand x1, x3; \
+ pxor x0, x1; \
+ pand x2, x0; \
+ pxor x3, x4; \
+ pxor x0, x3; \
+ pxor x1, x0;
+
+#define SI4(x0, x1, x2, x3, x4) \
+ pxor x3, x2; \
+ movdqa x0, x4; \
+ pand x1, x0; \
+ pxor x2, x0; \
+ por x3, x2; \
+ pxor RNOT, x4; \
+ pxor x0, x1; \
+ pxor x2, x0; \
+ pand x4, x2; \
+ pxor x0, x2; \
+ por x4, x0; \
+ pxor x3, x0; \
+ pand x2, x3; \
+ pxor x3, x4; \
+ pxor x1, x3; \
+ pand x0, x1; \
+ pxor x1, x4; \
+ pxor x3, x0;
+
+#define SI5(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ por x2, x1; \
+ pxor x4, x2; \
+ pxor x3, x1; \
+ pand x4, x3; \
+ pxor x3, x2; \
+ por x0, x3; \
+ pxor RNOT, x0; \
+ pxor x2, x3; \
+ por x0, x2; \
+ pxor x1, x4; \
+ pxor x4, x2; \
+ pand x0, x4; \
+ pxor x1, x0; \
+ pxor x3, x1; \
+ pand x2, x0; \
+ pxor x3, x2; \
+ pxor x2, x0; \
+ pxor x4, x2; \
+ pxor x3, x4;
+
+#define SI6(x0, x1, x2, x3, x4) \
+ pxor x2, x0; \
+ movdqa x0, x4; \
+ pand x3, x0; \
+ pxor x3, x2; \
+ pxor x2, x0; \
+ pxor x1, x3; \
+ por x4, x2; \
+ pxor x3, x2; \
+ pand x0, x3; \
+ pxor RNOT, x0; \
+ pxor x1, x3; \
+ pand x2, x1; \
+ pxor x0, x4; \
+ pxor x4, x3; \
+ pxor x2, x4; \
+ pxor x1, x0; \
+ pxor x0, x2;
+
+#define SI7(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ pand x0, x3; \
+ pxor x2, x0; \
+ por x4, x2; \
+ pxor x1, x4; \
+ pxor RNOT, x0; \
+ por x3, x1; \
+ pxor x0, x4; \
+ pand x2, x0; \
+ pxor x1, x0; \
+ pand x2, x1; \
+ pxor x2, x3; \
+ pxor x3, x4; \
+ pand x3, x2; \
+ por x0, x3; \
+ pxor x4, x1; \
+ pxor x4, x3; \
+ pand x0, x4; \
+ pxor x2, x4;
+
+#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ movdqa x0, t2; \
+ punpckldq x1, x0; \
+ punpckhdq x1, t2; \
+ movdqa x2, t1; \
+ punpckhdq x3, x2; \
+ punpckldq x3, t1; \
+ movdqa x0, x1; \
+ punpcklqdq t1, x0; \
+ punpckhqdq t1, x1; \
+ movdqa t2, x3; \
+ punpcklqdq x2, t2; \
+ punpckhqdq x2, x3; \
+ movdqa t2, x2;
+
+#define read_blocks(in, x0, x1, x2, x3, t0, t1, t2) \
+ movdqu (0*4*4)(in), x0; \
+ movdqu (1*4*4)(in), x1; \
+ movdqu (2*4*4)(in), x2; \
+ movdqu (3*4*4)(in), x3; \
+ \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
+
+#define write_blocks(out, x0, x1, x2, x3, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ \
+ movdqu x0, (0*4*4)(out); \
+ movdqu x1, (1*4*4)(out); \
+ movdqu x2, (2*4*4)(out); \
+ movdqu x3, (3*4*4)(out);
+
+#define xor_blocks(out, x0, x1, x2, x3, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ \
+ movdqu (0*4*4)(out), t0; \
+ pxor t0, x0; \
+ movdqu x0, (0*4*4)(out); \
+ movdqu (1*4*4)(out), t0; \
+ pxor t0, x1; \
+ movdqu x1, (1*4*4)(out); \
+ movdqu (2*4*4)(out), t0; \
+ pxor t0, x2; \
+ movdqu x2, (2*4*4)(out); \
+ movdqu (3*4*4)(out), t0; \
+ pxor t0, x3; \
+ movdqu x3, (3*4*4)(out);
+
+SYM_FUNC_START(__serpent_enc_blk_4way)
+ /* input:
+ * arg_ctx(%esp): ctx, CTX
+ * arg_dst(%esp): dst
+ * arg_src(%esp): src
+ * arg_xor(%esp): bool, if true: xor output
+ */
+
+ pcmpeqd RNOT, RNOT;
+
+ movl arg_ctx(%esp), CTX;
+
+ movl arg_src(%esp), %eax;
+ read_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
+
+ K(RA, RB, RC, RD, RE, 0);
+ S0(RA, RB, RC, RD, RE); LK(RC, RB, RD, RA, RE, 1);
+ S1(RC, RB, RD, RA, RE); LK(RE, RD, RA, RC, RB, 2);
+ S2(RE, RD, RA, RC, RB); LK(RB, RD, RE, RC, RA, 3);
+ S3(RB, RD, RE, RC, RA); LK(RC, RA, RD, RB, RE, 4);
+ S4(RC, RA, RD, RB, RE); LK(RA, RD, RB, RE, RC, 5);
+ S5(RA, RD, RB, RE, RC); LK(RC, RA, RD, RE, RB, 6);
+ S6(RC, RA, RD, RE, RB); LK(RD, RB, RA, RE, RC, 7);
+ S7(RD, RB, RA, RE, RC); LK(RC, RA, RE, RD, RB, 8);
+ S0(RC, RA, RE, RD, RB); LK(RE, RA, RD, RC, RB, 9);
+ S1(RE, RA, RD, RC, RB); LK(RB, RD, RC, RE, RA, 10);
+ S2(RB, RD, RC, RE, RA); LK(RA, RD, RB, RE, RC, 11);
+ S3(RA, RD, RB, RE, RC); LK(RE, RC, RD, RA, RB, 12);
+ S4(RE, RC, RD, RA, RB); LK(RC, RD, RA, RB, RE, 13);
+ S5(RC, RD, RA, RB, RE); LK(RE, RC, RD, RB, RA, 14);
+ S6(RE, RC, RD, RB, RA); LK(RD, RA, RC, RB, RE, 15);
+ S7(RD, RA, RC, RB, RE); LK(RE, RC, RB, RD, RA, 16);
+ S0(RE, RC, RB, RD, RA); LK(RB, RC, RD, RE, RA, 17);
+ S1(RB, RC, RD, RE, RA); LK(RA, RD, RE, RB, RC, 18);
+ S2(RA, RD, RE, RB, RC); LK(RC, RD, RA, RB, RE, 19);
+ S3(RC, RD, RA, RB, RE); LK(RB, RE, RD, RC, RA, 20);
+ S4(RB, RE, RD, RC, RA); LK(RE, RD, RC, RA, RB, 21);
+ S5(RE, RD, RC, RA, RB); LK(RB, RE, RD, RA, RC, 22);
+ S6(RB, RE, RD, RA, RC); LK(RD, RC, RE, RA, RB, 23);
+ S7(RD, RC, RE, RA, RB); LK(RB, RE, RA, RD, RC, 24);
+ S0(RB, RE, RA, RD, RC); LK(RA, RE, RD, RB, RC, 25);
+ S1(RA, RE, RD, RB, RC); LK(RC, RD, RB, RA, RE, 26);
+ S2(RC, RD, RB, RA, RE); LK(RE, RD, RC, RA, RB, 27);
+ S3(RE, RD, RC, RA, RB); LK(RA, RB, RD, RE, RC, 28);
+ S4(RA, RB, RD, RE, RC); LK(RB, RD, RE, RC, RA, 29);
+ S5(RB, RD, RE, RC, RA); LK(RA, RB, RD, RC, RE, 30);
+ S6(RA, RB, RD, RC, RE); LK(RD, RE, RB, RC, RA, 31);
+ S7(RD, RE, RB, RC, RA); K(RA, RB, RC, RD, RE, 32);
+
+ movl arg_dst(%esp), %eax;
+
+ cmpb $0, arg_xor(%esp);
+ jnz .L__enc_xor4;
+
+ write_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
+
+ RET;
+
+.L__enc_xor4:
+ xor_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
+
+ RET;
+SYM_FUNC_END(__serpent_enc_blk_4way)
+
+SYM_FUNC_START(serpent_dec_blk_4way)
+ /* input:
+ * arg_ctx(%esp): ctx, CTX
+ * arg_dst(%esp): dst
+ * arg_src(%esp): src
+ */
+
+ pcmpeqd RNOT, RNOT;
+
+ movl arg_ctx(%esp), CTX;
+
+ movl arg_src(%esp), %eax;
+ read_blocks(%eax, RA, RB, RC, RD, RT0, RT1, RE);
+
+ K(RA, RB, RC, RD, RE, 32);
+ SI7(RA, RB, RC, RD, RE); KL(RB, RD, RA, RE, RC, 31);
+ SI6(RB, RD, RA, RE, RC); KL(RA, RC, RE, RB, RD, 30);
+ SI5(RA, RC, RE, RB, RD); KL(RC, RD, RA, RE, RB, 29);
+ SI4(RC, RD, RA, RE, RB); KL(RC, RA, RB, RE, RD, 28);
+ SI3(RC, RA, RB, RE, RD); KL(RB, RC, RD, RE, RA, 27);
+ SI2(RB, RC, RD, RE, RA); KL(RC, RA, RE, RD, RB, 26);
+ SI1(RC, RA, RE, RD, RB); KL(RB, RA, RE, RD, RC, 25);
+ SI0(RB, RA, RE, RD, RC); KL(RE, RC, RA, RB, RD, 24);
+ SI7(RE, RC, RA, RB, RD); KL(RC, RB, RE, RD, RA, 23);
+ SI6(RC, RB, RE, RD, RA); KL(RE, RA, RD, RC, RB, 22);
+ SI5(RE, RA, RD, RC, RB); KL(RA, RB, RE, RD, RC, 21);
+ SI4(RA, RB, RE, RD, RC); KL(RA, RE, RC, RD, RB, 20);
+ SI3(RA, RE, RC, RD, RB); KL(RC, RA, RB, RD, RE, 19);
+ SI2(RC, RA, RB, RD, RE); KL(RA, RE, RD, RB, RC, 18);
+ SI1(RA, RE, RD, RB, RC); KL(RC, RE, RD, RB, RA, 17);
+ SI0(RC, RE, RD, RB, RA); KL(RD, RA, RE, RC, RB, 16);
+ SI7(RD, RA, RE, RC, RB); KL(RA, RC, RD, RB, RE, 15);
+ SI6(RA, RC, RD, RB, RE); KL(RD, RE, RB, RA, RC, 14);
+ SI5(RD, RE, RB, RA, RC); KL(RE, RC, RD, RB, RA, 13);
+ SI4(RE, RC, RD, RB, RA); KL(RE, RD, RA, RB, RC, 12);
+ SI3(RE, RD, RA, RB, RC); KL(RA, RE, RC, RB, RD, 11);
+ SI2(RA, RE, RC, RB, RD); KL(RE, RD, RB, RC, RA, 10);
+ SI1(RE, RD, RB, RC, RA); KL(RA, RD, RB, RC, RE, 9);
+ SI0(RA, RD, RB, RC, RE); KL(RB, RE, RD, RA, RC, 8);
+ SI7(RB, RE, RD, RA, RC); KL(RE, RA, RB, RC, RD, 7);
+ SI6(RE, RA, RB, RC, RD); KL(RB, RD, RC, RE, RA, 6);
+ SI5(RB, RD, RC, RE, RA); KL(RD, RA, RB, RC, RE, 5);
+ SI4(RD, RA, RB, RC, RE); KL(RD, RB, RE, RC, RA, 4);
+ SI3(RD, RB, RE, RC, RA); KL(RE, RD, RA, RC, RB, 3);
+ SI2(RE, RD, RA, RC, RB); KL(RD, RB, RC, RA, RE, 2);
+ SI1(RD, RB, RC, RA, RE); KL(RE, RB, RC, RA, RD, 1);
+ SI0(RE, RB, RC, RA, RD); K(RC, RD, RB, RE, RA, 0);
+
+ movl arg_dst(%esp), %eax;
+ write_blocks(%eax, RC, RD, RB, RE, RT0, RT1, RA);
+
+ RET;
+SYM_FUNC_END(serpent_dec_blk_4way)
diff --git a/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
new file mode 100644
index 000000000000..e0998a011d1d
--- /dev/null
+++ b/arch/x86/crypto/serpent-sse2-x86_64-asm_64.S
@@ -0,0 +1,739 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Serpent Cipher 8-way parallel algorithm (x86_64/SSE2)
+ *
+ * Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * Based on crypto/serpent.c by
+ * Copyright (C) 2002 Dag Arne Osvik <osvik@ii.uib.no>
+ * 2003 Herbert Valerio Riedel <hvr@gnu.org>
+ */
+
+#include <linux/linkage.h>
+
+.file "serpent-sse2-x86_64-asm_64.S"
+.text
+
+#define CTX %rdi
+
+/**********************************************************************
+ 8-way SSE2 serpent
+ **********************************************************************/
+#define RA1 %xmm0
+#define RB1 %xmm1
+#define RC1 %xmm2
+#define RD1 %xmm3
+#define RE1 %xmm4
+
+#define RA2 %xmm5
+#define RB2 %xmm6
+#define RC2 %xmm7
+#define RD2 %xmm8
+#define RE2 %xmm9
+
+#define RNOT %xmm10
+
+#define RK0 %xmm11
+#define RK1 %xmm12
+#define RK2 %xmm13
+#define RK3 %xmm14
+
+#define S0_1(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ por x0, x3; \
+ pxor x4, x0; \
+ pxor x2, x4; \
+ pxor RNOT, x4; \
+ pxor x1, x3; \
+ pand x0, x1; \
+ pxor x4, x1; \
+ pxor x0, x2;
+#define S0_2(x0, x1, x2, x3, x4) \
+ pxor x3, x0; \
+ por x0, x4; \
+ pxor x2, x0; \
+ pand x1, x2; \
+ pxor x2, x3; \
+ pxor RNOT, x1; \
+ pxor x4, x2; \
+ pxor x2, x1;
+
+#define S1_1(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ pxor x0, x1; \
+ pxor x3, x0; \
+ pxor RNOT, x3; \
+ pand x1, x4; \
+ por x1, x0; \
+ pxor x2, x3; \
+ pxor x3, x0; \
+ pxor x3, x1;
+#define S1_2(x0, x1, x2, x3, x4) \
+ pxor x4, x3; \
+ por x4, x1; \
+ pxor x2, x4; \
+ pand x0, x2; \
+ pxor x1, x2; \
+ por x0, x1; \
+ pxor RNOT, x0; \
+ pxor x2, x0; \
+ pxor x1, x4;
+
+#define S2_1(x0, x1, x2, x3, x4) \
+ pxor RNOT, x3; \
+ pxor x0, x1; \
+ movdqa x0, x4; \
+ pand x2, x0; \
+ pxor x3, x0; \
+ por x4, x3; \
+ pxor x1, x2; \
+ pxor x1, x3; \
+ pand x0, x1;
+#define S2_2(x0, x1, x2, x3, x4) \
+ pxor x2, x0; \
+ pand x3, x2; \
+ por x1, x3; \
+ pxor RNOT, x0; \
+ pxor x0, x3; \
+ pxor x0, x4; \
+ pxor x2, x0; \
+ por x2, x1;
+
+#define S3_1(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ pxor x3, x1; \
+ por x0, x3; \
+ pand x0, x4; \
+ pxor x2, x0; \
+ pxor x1, x2; \
+ pand x3, x1; \
+ pxor x3, x2; \
+ por x4, x0; \
+ pxor x3, x4;
+#define S3_2(x0, x1, x2, x3, x4) \
+ pxor x0, x1; \
+ pand x3, x0; \
+ pand x4, x3; \
+ pxor x2, x3; \
+ por x1, x4; \
+ pand x1, x2; \
+ pxor x3, x4; \
+ pxor x3, x0; \
+ pxor x2, x3;
+
+#define S4_1(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ pand x0, x3; \
+ pxor x4, x0; \
+ pxor x2, x3; \
+ por x4, x2; \
+ pxor x1, x0; \
+ pxor x3, x4; \
+ por x0, x2; \
+ pxor x1, x2;
+#define S4_2(x0, x1, x2, x3, x4) \
+ pand x0, x1; \
+ pxor x4, x1; \
+ pand x2, x4; \
+ pxor x3, x2; \
+ pxor x0, x4; \
+ por x1, x3; \
+ pxor RNOT, x1; \
+ pxor x0, x3;
+
+#define S5_1(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ por x0, x1; \
+ pxor x1, x2; \
+ pxor RNOT, x3; \
+ pxor x0, x4; \
+ pxor x2, x0; \
+ pand x4, x1; \
+ por x3, x4; \
+ pxor x0, x4;
+#define S5_2(x0, x1, x2, x3, x4) \
+ pand x3, x0; \
+ pxor x3, x1; \
+ pxor x2, x3; \
+ pxor x1, x0; \
+ pand x4, x2; \
+ pxor x2, x1; \
+ pand x0, x2; \
+ pxor x2, x3;
+
+#define S6_1(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ pxor x0, x3; \
+ pxor x2, x1; \
+ pxor x0, x2; \
+ pand x3, x0; \
+ por x3, x1; \
+ pxor RNOT, x4; \
+ pxor x1, x0; \
+ pxor x2, x1;
+#define S6_2(x0, x1, x2, x3, x4) \
+ pxor x4, x3; \
+ pxor x0, x4; \
+ pand x0, x2; \
+ pxor x1, x4; \
+ pxor x3, x2; \
+ pand x1, x3; \
+ pxor x0, x3; \
+ pxor x2, x1;
+
+#define S7_1(x0, x1, x2, x3, x4) \
+ pxor RNOT, x1; \
+ movdqa x1, x4; \
+ pxor RNOT, x0; \
+ pand x2, x1; \
+ pxor x3, x1; \
+ por x4, x3; \
+ pxor x2, x4; \
+ pxor x3, x2; \
+ pxor x0, x3; \
+ por x1, x0;
+#define S7_2(x0, x1, x2, x3, x4) \
+ pand x0, x2; \
+ pxor x4, x0; \
+ pxor x3, x4; \
+ pand x0, x3; \
+ pxor x1, x4; \
+ pxor x4, x2; \
+ pxor x1, x3; \
+ por x0, x4; \
+ pxor x1, x4;
+
+#define SI0_1(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ pxor x0, x1; \
+ por x1, x3; \
+ pxor x1, x4; \
+ pxor RNOT, x0; \
+ pxor x3, x2; \
+ pxor x0, x3; \
+ pand x1, x0; \
+ pxor x2, x0;
+#define SI0_2(x0, x1, x2, x3, x4) \
+ pand x3, x2; \
+ pxor x4, x3; \
+ pxor x3, x2; \
+ pxor x3, x1; \
+ pand x0, x3; \
+ pxor x0, x1; \
+ pxor x2, x0; \
+ pxor x3, x4;
+
+#define SI1_1(x0, x1, x2, x3, x4) \
+ pxor x3, x1; \
+ movdqa x0, x4; \
+ pxor x2, x0; \
+ pxor RNOT, x2; \
+ por x1, x4; \
+ pxor x3, x4; \
+ pand x1, x3; \
+ pxor x2, x1; \
+ pand x4, x2;
+#define SI1_2(x0, x1, x2, x3, x4) \
+ pxor x1, x4; \
+ por x3, x1; \
+ pxor x0, x3; \
+ pxor x0, x2; \
+ por x4, x0; \
+ pxor x4, x2; \
+ pxor x0, x1; \
+ pxor x1, x4;
+
+#define SI2_1(x0, x1, x2, x3, x4) \
+ pxor x1, x2; \
+ movdqa x3, x4; \
+ pxor RNOT, x3; \
+ por x2, x3; \
+ pxor x4, x2; \
+ pxor x0, x4; \
+ pxor x1, x3; \
+ por x2, x1; \
+ pxor x0, x2;
+#define SI2_2(x0, x1, x2, x3, x4) \
+ pxor x4, x1; \
+ por x3, x4; \
+ pxor x3, x2; \
+ pxor x2, x4; \
+ pand x1, x2; \
+ pxor x3, x2; \
+ pxor x4, x3; \
+ pxor x0, x4;
+
+#define SI3_1(x0, x1, x2, x3, x4) \
+ pxor x1, x2; \
+ movdqa x1, x4; \
+ pand x2, x1; \
+ pxor x0, x1; \
+ por x4, x0; \
+ pxor x3, x4; \
+ pxor x3, x0; \
+ por x1, x3; \
+ pxor x2, x1;
+#define SI3_2(x0, x1, x2, x3, x4) \
+ pxor x3, x1; \
+ pxor x2, x0; \
+ pxor x3, x2; \
+ pand x1, x3; \
+ pxor x0, x1; \
+ pand x2, x0; \
+ pxor x3, x4; \
+ pxor x0, x3; \
+ pxor x1, x0;
+
+#define SI4_1(x0, x1, x2, x3, x4) \
+ pxor x3, x2; \
+ movdqa x0, x4; \
+ pand x1, x0; \
+ pxor x2, x0; \
+ por x3, x2; \
+ pxor RNOT, x4; \
+ pxor x0, x1; \
+ pxor x2, x0; \
+ pand x4, x2;
+#define SI4_2(x0, x1, x2, x3, x4) \
+ pxor x0, x2; \
+ por x4, x0; \
+ pxor x3, x0; \
+ pand x2, x3; \
+ pxor x3, x4; \
+ pxor x1, x3; \
+ pand x0, x1; \
+ pxor x1, x4; \
+ pxor x3, x0;
+
+#define SI5_1(x0, x1, x2, x3, x4) \
+ movdqa x1, x4; \
+ por x2, x1; \
+ pxor x4, x2; \
+ pxor x3, x1; \
+ pand x4, x3; \
+ pxor x3, x2; \
+ por x0, x3; \
+ pxor RNOT, x0; \
+ pxor x2, x3; \
+ por x0, x2;
+#define SI5_2(x0, x1, x2, x3, x4) \
+ pxor x1, x4; \
+ pxor x4, x2; \
+ pand x0, x4; \
+ pxor x1, x0; \
+ pxor x3, x1; \
+ pand x2, x0; \
+ pxor x3, x2; \
+ pxor x2, x0; \
+ pxor x4, x2; \
+ pxor x3, x4;
+
+#define SI6_1(x0, x1, x2, x3, x4) \
+ pxor x2, x0; \
+ movdqa x0, x4; \
+ pand x3, x0; \
+ pxor x3, x2; \
+ pxor x2, x0; \
+ pxor x1, x3; \
+ por x4, x2; \
+ pxor x3, x2; \
+ pand x0, x3;
+#define SI6_2(x0, x1, x2, x3, x4) \
+ pxor RNOT, x0; \
+ pxor x1, x3; \
+ pand x2, x1; \
+ pxor x0, x4; \
+ pxor x4, x3; \
+ pxor x2, x4; \
+ pxor x1, x0; \
+ pxor x0, x2;
+
+#define SI7_1(x0, x1, x2, x3, x4) \
+ movdqa x3, x4; \
+ pand x0, x3; \
+ pxor x2, x0; \
+ por x4, x2; \
+ pxor x1, x4; \
+ pxor RNOT, x0; \
+ por x3, x1; \
+ pxor x0, x4; \
+ pand x2, x0; \
+ pxor x1, x0;
+#define SI7_2(x0, x1, x2, x3, x4) \
+ pand x2, x1; \
+ pxor x2, x3; \
+ pxor x3, x4; \
+ pand x3, x2; \
+ por x0, x3; \
+ pxor x4, x1; \
+ pxor x4, x3; \
+ pand x0, x4; \
+ pxor x2, x4;
+
+#define get_key(i, j, t) \
+ movd (4*(i)+(j))*4(CTX), t; \
+ pshufd $0, t, t;
+
+#define K2(x0, x1, x2, x3, x4, i) \
+ get_key(i, 0, RK0); \
+ get_key(i, 1, RK1); \
+ get_key(i, 2, RK2); \
+ get_key(i, 3, RK3); \
+ pxor RK0, x0 ## 1; \
+ pxor RK1, x1 ## 1; \
+ pxor RK2, x2 ## 1; \
+ pxor RK3, x3 ## 1; \
+ pxor RK0, x0 ## 2; \
+ pxor RK1, x1 ## 2; \
+ pxor RK2, x2 ## 2; \
+ pxor RK3, x3 ## 2;
+
+#define LK2(x0, x1, x2, x3, x4, i) \
+ movdqa x0 ## 1, x4 ## 1; \
+ pslld $13, x0 ## 1; \
+ psrld $(32 - 13), x4 ## 1; \
+ por x4 ## 1, x0 ## 1; \
+ pxor x0 ## 1, x1 ## 1; \
+ movdqa x2 ## 1, x4 ## 1; \
+ pslld $3, x2 ## 1; \
+ psrld $(32 - 3), x4 ## 1; \
+ por x4 ## 1, x2 ## 1; \
+ pxor x2 ## 1, x1 ## 1; \
+ movdqa x0 ## 2, x4 ## 2; \
+ pslld $13, x0 ## 2; \
+ psrld $(32 - 13), x4 ## 2; \
+ por x4 ## 2, x0 ## 2; \
+ pxor x0 ## 2, x1 ## 2; \
+ movdqa x2 ## 2, x4 ## 2; \
+ pslld $3, x2 ## 2; \
+ psrld $(32 - 3), x4 ## 2; \
+ por x4 ## 2, x2 ## 2; \
+ pxor x2 ## 2, x1 ## 2; \
+ movdqa x1 ## 1, x4 ## 1; \
+ pslld $1, x1 ## 1; \
+ psrld $(32 - 1), x4 ## 1; \
+ por x4 ## 1, x1 ## 1; \
+ movdqa x0 ## 1, x4 ## 1; \
+ pslld $3, x4 ## 1; \
+ pxor x2 ## 1, x3 ## 1; \
+ pxor x4 ## 1, x3 ## 1; \
+ movdqa x3 ## 1, x4 ## 1; \
+ get_key(i, 1, RK1); \
+ movdqa x1 ## 2, x4 ## 2; \
+ pslld $1, x1 ## 2; \
+ psrld $(32 - 1), x4 ## 2; \
+ por x4 ## 2, x1 ## 2; \
+ movdqa x0 ## 2, x4 ## 2; \
+ pslld $3, x4 ## 2; \
+ pxor x2 ## 2, x3 ## 2; \
+ pxor x4 ## 2, x3 ## 2; \
+ movdqa x3 ## 2, x4 ## 2; \
+ get_key(i, 3, RK3); \
+ pslld $7, x3 ## 1; \
+ psrld $(32 - 7), x4 ## 1; \
+ por x4 ## 1, x3 ## 1; \
+ movdqa x1 ## 1, x4 ## 1; \
+ pslld $7, x4 ## 1; \
+ pxor x1 ## 1, x0 ## 1; \
+ pxor x3 ## 1, x0 ## 1; \
+ pxor x3 ## 1, x2 ## 1; \
+ pxor x4 ## 1, x2 ## 1; \
+ get_key(i, 0, RK0); \
+ pslld $7, x3 ## 2; \
+ psrld $(32 - 7), x4 ## 2; \
+ por x4 ## 2, x3 ## 2; \
+ movdqa x1 ## 2, x4 ## 2; \
+ pslld $7, x4 ## 2; \
+ pxor x1 ## 2, x0 ## 2; \
+ pxor x3 ## 2, x0 ## 2; \
+ pxor x3 ## 2, x2 ## 2; \
+ pxor x4 ## 2, x2 ## 2; \
+ get_key(i, 2, RK2); \
+ pxor RK1, x1 ## 1; \
+ pxor RK3, x3 ## 1; \
+ movdqa x0 ## 1, x4 ## 1; \
+ pslld $5, x0 ## 1; \
+ psrld $(32 - 5), x4 ## 1; \
+ por x4 ## 1, x0 ## 1; \
+ movdqa x2 ## 1, x4 ## 1; \
+ pslld $22, x2 ## 1; \
+ psrld $(32 - 22), x4 ## 1; \
+ por x4 ## 1, x2 ## 1; \
+ pxor RK0, x0 ## 1; \
+ pxor RK2, x2 ## 1; \
+ pxor RK1, x1 ## 2; \
+ pxor RK3, x3 ## 2; \
+ movdqa x0 ## 2, x4 ## 2; \
+ pslld $5, x0 ## 2; \
+ psrld $(32 - 5), x4 ## 2; \
+ por x4 ## 2, x0 ## 2; \
+ movdqa x2 ## 2, x4 ## 2; \
+ pslld $22, x2 ## 2; \
+ psrld $(32 - 22), x4 ## 2; \
+ por x4 ## 2, x2 ## 2; \
+ pxor RK0, x0 ## 2; \
+ pxor RK2, x2 ## 2;
+
+#define KL2(x0, x1, x2, x3, x4, i) \
+ pxor RK0, x0 ## 1; \
+ pxor RK2, x2 ## 1; \
+ movdqa x0 ## 1, x4 ## 1; \
+ psrld $5, x0 ## 1; \
+ pslld $(32 - 5), x4 ## 1; \
+ por x4 ## 1, x0 ## 1; \
+ pxor RK3, x3 ## 1; \
+ pxor RK1, x1 ## 1; \
+ movdqa x2 ## 1, x4 ## 1; \
+ psrld $22, x2 ## 1; \
+ pslld $(32 - 22), x4 ## 1; \
+ por x4 ## 1, x2 ## 1; \
+ pxor x3 ## 1, x2 ## 1; \
+ pxor RK0, x0 ## 2; \
+ pxor RK2, x2 ## 2; \
+ movdqa x0 ## 2, x4 ## 2; \
+ psrld $5, x0 ## 2; \
+ pslld $(32 - 5), x4 ## 2; \
+ por x4 ## 2, x0 ## 2; \
+ pxor RK3, x3 ## 2; \
+ pxor RK1, x1 ## 2; \
+ movdqa x2 ## 2, x4 ## 2; \
+ psrld $22, x2 ## 2; \
+ pslld $(32 - 22), x4 ## 2; \
+ por x4 ## 2, x2 ## 2; \
+ pxor x3 ## 2, x2 ## 2; \
+ pxor x3 ## 1, x0 ## 1; \
+ movdqa x1 ## 1, x4 ## 1; \
+ pslld $7, x4 ## 1; \
+ pxor x1 ## 1, x0 ## 1; \
+ pxor x4 ## 1, x2 ## 1; \
+ movdqa x1 ## 1, x4 ## 1; \
+ psrld $1, x1 ## 1; \
+ pslld $(32 - 1), x4 ## 1; \
+ por x4 ## 1, x1 ## 1; \
+ pxor x3 ## 2, x0 ## 2; \
+ movdqa x1 ## 2, x4 ## 2; \
+ pslld $7, x4 ## 2; \
+ pxor x1 ## 2, x0 ## 2; \
+ pxor x4 ## 2, x2 ## 2; \
+ movdqa x1 ## 2, x4 ## 2; \
+ psrld $1, x1 ## 2; \
+ pslld $(32 - 1), x4 ## 2; \
+ por x4 ## 2, x1 ## 2; \
+ movdqa x3 ## 1, x4 ## 1; \
+ psrld $7, x3 ## 1; \
+ pslld $(32 - 7), x4 ## 1; \
+ por x4 ## 1, x3 ## 1; \
+ pxor x0 ## 1, x1 ## 1; \
+ movdqa x0 ## 1, x4 ## 1; \
+ pslld $3, x4 ## 1; \
+ pxor x4 ## 1, x3 ## 1; \
+ movdqa x0 ## 1, x4 ## 1; \
+ movdqa x3 ## 2, x4 ## 2; \
+ psrld $7, x3 ## 2; \
+ pslld $(32 - 7), x4 ## 2; \
+ por x4 ## 2, x3 ## 2; \
+ pxor x0 ## 2, x1 ## 2; \
+ movdqa x0 ## 2, x4 ## 2; \
+ pslld $3, x4 ## 2; \
+ pxor x4 ## 2, x3 ## 2; \
+ movdqa x0 ## 2, x4 ## 2; \
+ psrld $13, x0 ## 1; \
+ pslld $(32 - 13), x4 ## 1; \
+ por x4 ## 1, x0 ## 1; \
+ pxor x2 ## 1, x1 ## 1; \
+ pxor x2 ## 1, x3 ## 1; \
+ movdqa x2 ## 1, x4 ## 1; \
+ psrld $3, x2 ## 1; \
+ pslld $(32 - 3), x4 ## 1; \
+ por x4 ## 1, x2 ## 1; \
+ psrld $13, x0 ## 2; \
+ pslld $(32 - 13), x4 ## 2; \
+ por x4 ## 2, x0 ## 2; \
+ pxor x2 ## 2, x1 ## 2; \
+ pxor x2 ## 2, x3 ## 2; \
+ movdqa x2 ## 2, x4 ## 2; \
+ psrld $3, x2 ## 2; \
+ pslld $(32 - 3), x4 ## 2; \
+ por x4 ## 2, x2 ## 2;
+
+#define S(SBOX, x0, x1, x2, x3, x4) \
+ SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
+ SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2);
+
+#define SP(SBOX, x0, x1, x2, x3, x4, i) \
+ get_key(i, 0, RK0); \
+ SBOX ## _1(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ get_key(i, 2, RK2); \
+ SBOX ## _1(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
+ get_key(i, 3, RK3); \
+ SBOX ## _2(x0 ## 1, x1 ## 1, x2 ## 1, x3 ## 1, x4 ## 1); \
+ get_key(i, 1, RK1); \
+ SBOX ## _2(x0 ## 2, x1 ## 2, x2 ## 2, x3 ## 2, x4 ## 2); \
+
+#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ movdqa x0, t2; \
+ punpckldq x1, x0; \
+ punpckhdq x1, t2; \
+ movdqa x2, t1; \
+ punpckhdq x3, x2; \
+ punpckldq x3, t1; \
+ movdqa x0, x1; \
+ punpcklqdq t1, x0; \
+ punpckhqdq t1, x1; \
+ movdqa t2, x3; \
+ punpcklqdq x2, t2; \
+ punpckhqdq x2, x3; \
+ movdqa t2, x2;
+
+#define read_blocks(in, x0, x1, x2, x3, t0, t1, t2) \
+ movdqu (0*4*4)(in), x0; \
+ movdqu (1*4*4)(in), x1; \
+ movdqu (2*4*4)(in), x2; \
+ movdqu (3*4*4)(in), x3; \
+ \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
+
+#define write_blocks(out, x0, x1, x2, x3, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ \
+ movdqu x0, (0*4*4)(out); \
+ movdqu x1, (1*4*4)(out); \
+ movdqu x2, (2*4*4)(out); \
+ movdqu x3, (3*4*4)(out);
+
+#define xor_blocks(out, x0, x1, x2, x3, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ \
+ movdqu (0*4*4)(out), t0; \
+ pxor t0, x0; \
+ movdqu x0, (0*4*4)(out); \
+ movdqu (1*4*4)(out), t0; \
+ pxor t0, x1; \
+ movdqu x1, (1*4*4)(out); \
+ movdqu (2*4*4)(out), t0; \
+ pxor t0, x2; \
+ movdqu x2, (2*4*4)(out); \
+ movdqu (3*4*4)(out), t0; \
+ pxor t0, x3; \
+ movdqu x3, (3*4*4)(out);
+
+SYM_FUNC_START(__serpent_enc_blk_8way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ * %rcx: bool, if true: xor output
+ */
+
+ pcmpeqd RNOT, RNOT;
+
+ leaq (4*4*4)(%rdx), %rax;
+ read_blocks(%rdx, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ read_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+
+ K2(RA, RB, RC, RD, RE, 0);
+ S(S0, RA, RB, RC, RD, RE); LK2(RC, RB, RD, RA, RE, 1);
+ S(S1, RC, RB, RD, RA, RE); LK2(RE, RD, RA, RC, RB, 2);
+ S(S2, RE, RD, RA, RC, RB); LK2(RB, RD, RE, RC, RA, 3);
+ S(S3, RB, RD, RE, RC, RA); LK2(RC, RA, RD, RB, RE, 4);
+ S(S4, RC, RA, RD, RB, RE); LK2(RA, RD, RB, RE, RC, 5);
+ S(S5, RA, RD, RB, RE, RC); LK2(RC, RA, RD, RE, RB, 6);
+ S(S6, RC, RA, RD, RE, RB); LK2(RD, RB, RA, RE, RC, 7);
+ S(S7, RD, RB, RA, RE, RC); LK2(RC, RA, RE, RD, RB, 8);
+ S(S0, RC, RA, RE, RD, RB); LK2(RE, RA, RD, RC, RB, 9);
+ S(S1, RE, RA, RD, RC, RB); LK2(RB, RD, RC, RE, RA, 10);
+ S(S2, RB, RD, RC, RE, RA); LK2(RA, RD, RB, RE, RC, 11);
+ S(S3, RA, RD, RB, RE, RC); LK2(RE, RC, RD, RA, RB, 12);
+ S(S4, RE, RC, RD, RA, RB); LK2(RC, RD, RA, RB, RE, 13);
+ S(S5, RC, RD, RA, RB, RE); LK2(RE, RC, RD, RB, RA, 14);
+ S(S6, RE, RC, RD, RB, RA); LK2(RD, RA, RC, RB, RE, 15);
+ S(S7, RD, RA, RC, RB, RE); LK2(RE, RC, RB, RD, RA, 16);
+ S(S0, RE, RC, RB, RD, RA); LK2(RB, RC, RD, RE, RA, 17);
+ S(S1, RB, RC, RD, RE, RA); LK2(RA, RD, RE, RB, RC, 18);
+ S(S2, RA, RD, RE, RB, RC); LK2(RC, RD, RA, RB, RE, 19);
+ S(S3, RC, RD, RA, RB, RE); LK2(RB, RE, RD, RC, RA, 20);
+ S(S4, RB, RE, RD, RC, RA); LK2(RE, RD, RC, RA, RB, 21);
+ S(S5, RE, RD, RC, RA, RB); LK2(RB, RE, RD, RA, RC, 22);
+ S(S6, RB, RE, RD, RA, RC); LK2(RD, RC, RE, RA, RB, 23);
+ S(S7, RD, RC, RE, RA, RB); LK2(RB, RE, RA, RD, RC, 24);
+ S(S0, RB, RE, RA, RD, RC); LK2(RA, RE, RD, RB, RC, 25);
+ S(S1, RA, RE, RD, RB, RC); LK2(RC, RD, RB, RA, RE, 26);
+ S(S2, RC, RD, RB, RA, RE); LK2(RE, RD, RC, RA, RB, 27);
+ S(S3, RE, RD, RC, RA, RB); LK2(RA, RB, RD, RE, RC, 28);
+ S(S4, RA, RB, RD, RE, RC); LK2(RB, RD, RE, RC, RA, 29);
+ S(S5, RB, RD, RE, RC, RA); LK2(RA, RB, RD, RC, RE, 30);
+ S(S6, RA, RB, RD, RC, RE); LK2(RD, RE, RB, RC, RA, 31);
+ S(S7, RD, RE, RB, RC, RA); K2(RA, RB, RC, RD, RE, 32);
+
+ leaq (4*4*4)(%rsi), %rax;
+
+ testb %cl, %cl;
+ jnz .L__enc_xor8;
+
+ write_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ write_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+
+ RET;
+
+.L__enc_xor8:
+ xor_blocks(%rsi, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ xor_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+
+ RET;
+SYM_FUNC_END(__serpent_enc_blk_8way)
+
+SYM_FUNC_START(serpent_dec_blk_8way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+
+ pcmpeqd RNOT, RNOT;
+
+ leaq (4*4*4)(%rdx), %rax;
+ read_blocks(%rdx, RA1, RB1, RC1, RD1, RK0, RK1, RK2);
+ read_blocks(%rax, RA2, RB2, RC2, RD2, RK0, RK1, RK2);
+
+ K2(RA, RB, RC, RD, RE, 32);
+ SP(SI7, RA, RB, RC, RD, RE, 31); KL2(RB, RD, RA, RE, RC, 31);
+ SP(SI6, RB, RD, RA, RE, RC, 30); KL2(RA, RC, RE, RB, RD, 30);
+ SP(SI5, RA, RC, RE, RB, RD, 29); KL2(RC, RD, RA, RE, RB, 29);
+ SP(SI4, RC, RD, RA, RE, RB, 28); KL2(RC, RA, RB, RE, RD, 28);
+ SP(SI3, RC, RA, RB, RE, RD, 27); KL2(RB, RC, RD, RE, RA, 27);
+ SP(SI2, RB, RC, RD, RE, RA, 26); KL2(RC, RA, RE, RD, RB, 26);
+ SP(SI1, RC, RA, RE, RD, RB, 25); KL2(RB, RA, RE, RD, RC, 25);
+ SP(SI0, RB, RA, RE, RD, RC, 24); KL2(RE, RC, RA, RB, RD, 24);
+ SP(SI7, RE, RC, RA, RB, RD, 23); KL2(RC, RB, RE, RD, RA, 23);
+ SP(SI6, RC, RB, RE, RD, RA, 22); KL2(RE, RA, RD, RC, RB, 22);
+ SP(SI5, RE, RA, RD, RC, RB, 21); KL2(RA, RB, RE, RD, RC, 21);
+ SP(SI4, RA, RB, RE, RD, RC, 20); KL2(RA, RE, RC, RD, RB, 20);
+ SP(SI3, RA, RE, RC, RD, RB, 19); KL2(RC, RA, RB, RD, RE, 19);
+ SP(SI2, RC, RA, RB, RD, RE, 18); KL2(RA, RE, RD, RB, RC, 18);
+ SP(SI1, RA, RE, RD, RB, RC, 17); KL2(RC, RE, RD, RB, RA, 17);
+ SP(SI0, RC, RE, RD, RB, RA, 16); KL2(RD, RA, RE, RC, RB, 16);
+ SP(SI7, RD, RA, RE, RC, RB, 15); KL2(RA, RC, RD, RB, RE, 15);
+ SP(SI6, RA, RC, RD, RB, RE, 14); KL2(RD, RE, RB, RA, RC, 14);
+ SP(SI5, RD, RE, RB, RA, RC, 13); KL2(RE, RC, RD, RB, RA, 13);
+ SP(SI4, RE, RC, RD, RB, RA, 12); KL2(RE, RD, RA, RB, RC, 12);
+ SP(SI3, RE, RD, RA, RB, RC, 11); KL2(RA, RE, RC, RB, RD, 11);
+ SP(SI2, RA, RE, RC, RB, RD, 10); KL2(RE, RD, RB, RC, RA, 10);
+ SP(SI1, RE, RD, RB, RC, RA, 9); KL2(RA, RD, RB, RC, RE, 9);
+ SP(SI0, RA, RD, RB, RC, RE, 8); KL2(RB, RE, RD, RA, RC, 8);
+ SP(SI7, RB, RE, RD, RA, RC, 7); KL2(RE, RA, RB, RC, RD, 7);
+ SP(SI6, RE, RA, RB, RC, RD, 6); KL2(RB, RD, RC, RE, RA, 6);
+ SP(SI5, RB, RD, RC, RE, RA, 5); KL2(RD, RA, RB, RC, RE, 5);
+ SP(SI4, RD, RA, RB, RC, RE, 4); KL2(RD, RB, RE, RC, RA, 4);
+ SP(SI3, RD, RB, RE, RC, RA, 3); KL2(RE, RD, RA, RC, RB, 3);
+ SP(SI2, RE, RD, RA, RC, RB, 2); KL2(RD, RB, RC, RA, RE, 2);
+ SP(SI1, RD, RB, RC, RA, RE, 1); KL2(RE, RB, RC, RA, RD, 1);
+ S(SI0, RE, RB, RC, RA, RD); K2(RC, RD, RB, RE, RA, 0);
+
+ leaq (4*4*4)(%rsi), %rax;
+ write_blocks(%rsi, RC1, RD1, RB1, RE1, RK0, RK1, RK2);
+ write_blocks(%rax, RC2, RD2, RB2, RE2, RK0, RK1, RK2);
+
+ RET;
+SYM_FUNC_END(serpent_dec_blk_8way)
diff --git a/arch/x86/crypto/serpent-sse2.h b/arch/x86/crypto/serpent-sse2.h
new file mode 100644
index 000000000000..860ca248914b
--- /dev/null
+++ b/arch/x86/crypto/serpent-sse2.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_X86_SERPENT_SSE2_H
+#define ASM_X86_SERPENT_SSE2_H
+
+#include <linux/crypto.h>
+#include <crypto/serpent.h>
+
+#ifdef CONFIG_X86_32
+
+#define SERPENT_PARALLEL_BLOCKS 4
+
+asmlinkage void __serpent_enc_blk_4way(const struct serpent_ctx *ctx, u8 *dst,
+ const u8 *src, bool xor);
+asmlinkage void serpent_dec_blk_4way(const struct serpent_ctx *ctx, u8 *dst,
+ const u8 *src);
+
+static inline void serpent_enc_blk_xway(const void *ctx, u8 *dst, const u8 *src)
+{
+ __serpent_enc_blk_4way(ctx, dst, src, false);
+}
+
+static inline void serpent_enc_blk_xway_xor(const struct serpent_ctx *ctx,
+ u8 *dst, const u8 *src)
+{
+ __serpent_enc_blk_4way(ctx, dst, src, true);
+}
+
+static inline void serpent_dec_blk_xway(const void *ctx, u8 *dst, const u8 *src)
+{
+ serpent_dec_blk_4way(ctx, dst, src);
+}
+
+#else
+
+#define SERPENT_PARALLEL_BLOCKS 8
+
+asmlinkage void __serpent_enc_blk_8way(const struct serpent_ctx *ctx, u8 *dst,
+ const u8 *src, bool xor);
+asmlinkage void serpent_dec_blk_8way(const struct serpent_ctx *ctx, u8 *dst,
+ const u8 *src);
+
+static inline void serpent_enc_blk_xway(const void *ctx, u8 *dst, const u8 *src)
+{
+ __serpent_enc_blk_8way(ctx, dst, src, false);
+}
+
+static inline void serpent_enc_blk_xway_xor(const struct serpent_ctx *ctx,
+ u8 *dst, const u8 *src)
+{
+ __serpent_enc_blk_8way(ctx, dst, src, true);
+}
+
+static inline void serpent_dec_blk_xway(const void *ctx, u8 *dst, const u8 *src)
+{
+ serpent_dec_blk_8way(ctx, dst, src);
+}
+
+#endif
+
+#endif
diff --git a/arch/x86/crypto/serpent_avx2_glue.c b/arch/x86/crypto/serpent_avx2_glue.c
new file mode 100644
index 000000000000..347e97f4b713
--- /dev/null
+++ b/arch/x86/crypto/serpent_avx2_glue.c
@@ -0,0 +1,130 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for x86_64/AVX2 assembler optimized version of Serpent
+ *
+ * Copyright Ā© 2012-2013 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/simd.h>
+#include <crypto/serpent.h>
+
+#include "serpent-avx.h"
+#include "ecb_cbc_helpers.h"
+
+#define SERPENT_AVX2_PARALLEL_BLOCKS 16
+
+/* 16-way AVX2 parallel cipher functions */
+asmlinkage void serpent_ecb_enc_16way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void serpent_ecb_dec_16way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void serpent_cbc_dec_16way(const void *ctx, u8 *dst, const u8 *src);
+
+static int serpent_setkey_skcipher(struct crypto_skcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return __serpent_setkey(crypto_skcipher_ctx(tfm), key, keylen);
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, SERPENT_BLOCK_SIZE, SERPENT_PARALLEL_BLOCKS);
+ ECB_BLOCK(SERPENT_AVX2_PARALLEL_BLOCKS, serpent_ecb_enc_16way);
+ ECB_BLOCK(SERPENT_PARALLEL_BLOCKS, serpent_ecb_enc_8way_avx);
+ ECB_BLOCK(1, __serpent_encrypt);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, SERPENT_BLOCK_SIZE, SERPENT_PARALLEL_BLOCKS);
+ ECB_BLOCK(SERPENT_AVX2_PARALLEL_BLOCKS, serpent_ecb_dec_16way);
+ ECB_BLOCK(SERPENT_PARALLEL_BLOCKS, serpent_ecb_dec_8way_avx);
+ ECB_BLOCK(1, __serpent_decrypt);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, SERPENT_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(__serpent_encrypt);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, SERPENT_BLOCK_SIZE, SERPENT_PARALLEL_BLOCKS);
+ CBC_DEC_BLOCK(SERPENT_AVX2_PARALLEL_BLOCKS, serpent_cbc_dec_16way);
+ CBC_DEC_BLOCK(SERPENT_PARALLEL_BLOCKS, serpent_cbc_dec_8way_avx);
+ CBC_DEC_BLOCK(1, __serpent_decrypt);
+ CBC_WALK_END();
+}
+
+static struct skcipher_alg serpent_algs[] = {
+ {
+ .base.cra_name = "__ecb(serpent)",
+ .base.cra_driver_name = "__ecb-serpent-avx2",
+ .base.cra_priority = 600,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = SERPENT_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct serpent_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = SERPENT_MIN_KEY_SIZE,
+ .max_keysize = SERPENT_MAX_KEY_SIZE,
+ .setkey = serpent_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "__cbc(serpent)",
+ .base.cra_driver_name = "__cbc-serpent-avx2",
+ .base.cra_priority = 600,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = SERPENT_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct serpent_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = SERPENT_MIN_KEY_SIZE,
+ .max_keysize = SERPENT_MAX_KEY_SIZE,
+ .ivsize = SERPENT_BLOCK_SIZE,
+ .setkey = serpent_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ },
+};
+
+static struct simd_skcipher_alg *serpent_simd_algs[ARRAY_SIZE(serpent_algs)];
+
+static int __init serpent_avx2_init(void)
+{
+ const char *feature_name;
+
+ if (!boot_cpu_has(X86_FEATURE_AVX2) || !boot_cpu_has(X86_FEATURE_OSXSAVE)) {
+ pr_info("AVX2 instructions are not detected.\n");
+ return -ENODEV;
+ }
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ return simd_register_skciphers_compat(serpent_algs,
+ ARRAY_SIZE(serpent_algs),
+ serpent_simd_algs);
+}
+
+static void __exit serpent_avx2_fini(void)
+{
+ simd_unregister_skciphers(serpent_algs, ARRAY_SIZE(serpent_algs),
+ serpent_simd_algs);
+}
+
+module_init(serpent_avx2_init);
+module_exit(serpent_avx2_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Serpent Cipher Algorithm, AVX2 optimized");
+MODULE_ALIAS_CRYPTO("serpent");
+MODULE_ALIAS_CRYPTO("serpent-asm");
diff --git a/arch/x86/crypto/serpent_avx_glue.c b/arch/x86/crypto/serpent_avx_glue.c
new file mode 100644
index 000000000000..6c248e1ea4ef
--- /dev/null
+++ b/arch/x86/crypto/serpent_avx_glue.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for AVX assembler versions of Serpent Cipher
+ *
+ * Copyright (C) 2012 Johannes Goetzfried
+ * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
+ *
+ * Copyright Ā© 2011-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/simd.h>
+#include <crypto/serpent.h>
+
+#include "serpent-avx.h"
+#include "ecb_cbc_helpers.h"
+
+/* 8-way parallel cipher functions */
+asmlinkage void serpent_ecb_enc_8way_avx(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(serpent_ecb_enc_8way_avx);
+
+asmlinkage void serpent_ecb_dec_8way_avx(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(serpent_ecb_dec_8way_avx);
+
+asmlinkage void serpent_cbc_dec_8way_avx(const void *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(serpent_cbc_dec_8way_avx);
+
+static int serpent_setkey_skcipher(struct crypto_skcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return __serpent_setkey(crypto_skcipher_ctx(tfm), key, keylen);
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, SERPENT_BLOCK_SIZE, SERPENT_PARALLEL_BLOCKS);
+ ECB_BLOCK(SERPENT_PARALLEL_BLOCKS, serpent_ecb_enc_8way_avx);
+ ECB_BLOCK(1, __serpent_encrypt);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, SERPENT_BLOCK_SIZE, SERPENT_PARALLEL_BLOCKS);
+ ECB_BLOCK(SERPENT_PARALLEL_BLOCKS, serpent_ecb_dec_8way_avx);
+ ECB_BLOCK(1, __serpent_decrypt);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, SERPENT_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(__serpent_encrypt);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, SERPENT_BLOCK_SIZE, SERPENT_PARALLEL_BLOCKS);
+ CBC_DEC_BLOCK(SERPENT_PARALLEL_BLOCKS, serpent_cbc_dec_8way_avx);
+ CBC_DEC_BLOCK(1, __serpent_decrypt);
+ CBC_WALK_END();
+}
+
+static struct skcipher_alg serpent_algs[] = {
+ {
+ .base.cra_name = "__ecb(serpent)",
+ .base.cra_driver_name = "__ecb-serpent-avx",
+ .base.cra_priority = 500,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = SERPENT_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct serpent_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = SERPENT_MIN_KEY_SIZE,
+ .max_keysize = SERPENT_MAX_KEY_SIZE,
+ .setkey = serpent_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "__cbc(serpent)",
+ .base.cra_driver_name = "__cbc-serpent-avx",
+ .base.cra_priority = 500,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = SERPENT_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct serpent_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = SERPENT_MIN_KEY_SIZE,
+ .max_keysize = SERPENT_MAX_KEY_SIZE,
+ .ivsize = SERPENT_BLOCK_SIZE,
+ .setkey = serpent_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ },
+};
+
+static struct simd_skcipher_alg *serpent_simd_algs[ARRAY_SIZE(serpent_algs)];
+
+static int __init serpent_init(void)
+{
+ const char *feature_name;
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ return simd_register_skciphers_compat(serpent_algs,
+ ARRAY_SIZE(serpent_algs),
+ serpent_simd_algs);
+}
+
+static void __exit serpent_exit(void)
+{
+ simd_unregister_skciphers(serpent_algs, ARRAY_SIZE(serpent_algs),
+ serpent_simd_algs);
+}
+
+module_init(serpent_init);
+module_exit(serpent_exit);
+
+MODULE_DESCRIPTION("Serpent Cipher Algorithm, AVX optimized");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_CRYPTO("serpent");
diff --git a/arch/x86/crypto/serpent_sse2_glue.c b/arch/x86/crypto/serpent_sse2_glue.c
new file mode 100644
index 000000000000..d78f37e9b2cf
--- /dev/null
+++ b/arch/x86/crypto/serpent_sse2_glue.c
@@ -0,0 +1,131 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for SSE2 assembler versions of Serpent Cipher
+ *
+ * Copyright (c) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * Glue code based on aesni-intel_glue.c by:
+ * Copyright (C) 2008, Intel Corp.
+ * Author: Huang Ying <ying.huang@intel.com>
+ *
+ * CBC & ECB parts based on code (crypto/cbc.c,ecb.c) by:
+ * Copyright (c) 2006 Herbert Xu <herbert@gondor.apana.org.au>
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <crypto/algapi.h>
+#include <crypto/b128ops.h>
+#include <crypto/internal/simd.h>
+#include <crypto/serpent.h>
+
+#include "serpent-sse2.h"
+#include "ecb_cbc_helpers.h"
+
+static int serpent_setkey_skcipher(struct crypto_skcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return __serpent_setkey(crypto_skcipher_ctx(tfm), key, keylen);
+}
+
+static void serpent_decrypt_cbc_xway(const void *ctx, u8 *dst, const u8 *src)
+{
+ u8 buf[SERPENT_PARALLEL_BLOCKS - 1][SERPENT_BLOCK_SIZE];
+ const u8 *s = src;
+
+ if (dst == src)
+ s = memcpy(buf, src, sizeof(buf));
+ serpent_dec_blk_xway(ctx, dst, src);
+ crypto_xor(dst + SERPENT_BLOCK_SIZE, s, sizeof(buf));
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, SERPENT_BLOCK_SIZE, SERPENT_PARALLEL_BLOCKS);
+ ECB_BLOCK(SERPENT_PARALLEL_BLOCKS, serpent_enc_blk_xway);
+ ECB_BLOCK(1, __serpent_encrypt);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, SERPENT_BLOCK_SIZE, SERPENT_PARALLEL_BLOCKS);
+ ECB_BLOCK(SERPENT_PARALLEL_BLOCKS, serpent_dec_blk_xway);
+ ECB_BLOCK(1, __serpent_decrypt);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, SERPENT_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(__serpent_encrypt);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, SERPENT_BLOCK_SIZE, SERPENT_PARALLEL_BLOCKS);
+ CBC_DEC_BLOCK(SERPENT_PARALLEL_BLOCKS, serpent_decrypt_cbc_xway);
+ CBC_DEC_BLOCK(1, __serpent_decrypt);
+ CBC_WALK_END();
+}
+
+static struct skcipher_alg serpent_algs[] = {
+ {
+ .base.cra_name = "__ecb(serpent)",
+ .base.cra_driver_name = "__ecb-serpent-sse2",
+ .base.cra_priority = 400,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = SERPENT_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct serpent_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = SERPENT_MIN_KEY_SIZE,
+ .max_keysize = SERPENT_MAX_KEY_SIZE,
+ .setkey = serpent_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "__cbc(serpent)",
+ .base.cra_driver_name = "__cbc-serpent-sse2",
+ .base.cra_priority = 400,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = SERPENT_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct serpent_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = SERPENT_MIN_KEY_SIZE,
+ .max_keysize = SERPENT_MAX_KEY_SIZE,
+ .ivsize = SERPENT_BLOCK_SIZE,
+ .setkey = serpent_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ },
+};
+
+static struct simd_skcipher_alg *serpent_simd_algs[ARRAY_SIZE(serpent_algs)];
+
+static int __init serpent_sse2_init(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_XMM2)) {
+ printk(KERN_INFO "SSE2 instructions are not detected.\n");
+ return -ENODEV;
+ }
+
+ return simd_register_skciphers_compat(serpent_algs,
+ ARRAY_SIZE(serpent_algs),
+ serpent_simd_algs);
+}
+
+static void __exit serpent_sse2_exit(void)
+{
+ simd_unregister_skciphers(serpent_algs, ARRAY_SIZE(serpent_algs),
+ serpent_simd_algs);
+}
+
+module_init(serpent_sse2_init);
+module_exit(serpent_sse2_exit);
+
+MODULE_DESCRIPTION("Serpent Cipher Algorithm, SSE2 optimized");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_CRYPTO("serpent");
diff --git a/arch/x86/crypto/sha1_avx2_x86_64_asm.S b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
new file mode 100644
index 000000000000..4b49bdc95265
--- /dev/null
+++ b/arch/x86/crypto/sha1_avx2_x86_64_asm.S
@@ -0,0 +1,700 @@
+/*
+ * Implement fast SHA-1 with AVX2 instructions. (x86_64)
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Contact Information:
+ * Ilya Albrekht <ilya.albrekht@intel.com>
+ * Maxim Locktyukhin <maxim.locktyukhin@intel.com>
+ * Ronen Zohar <ronen.zohar@intel.com>
+ * Chandramouli Narayanan <mouli@linux.intel.com>
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2014 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+/*
+ * SHA-1 implementation with Intel(R) AVX2 instruction set extensions.
+ *
+ *This implementation is based on the previous SSSE3 release:
+ *Visit http://software.intel.com/en-us/articles/
+ *and refer to improving-the-performance-of-the-secure-hash-algorithm-1/
+ *
+ *Updates 20-byte SHA-1 record at start of 'state', from 'input', for
+ *even number of 'blocks' consecutive 64-byte blocks.
+ *
+ *extern "C" void sha1_transform_avx2(
+ * struct sha1_state *state, const u8* input, int blocks );
+ */
+
+#include <linux/linkage.h>
+
+#define CTX %rdi /* arg1 */
+#define BUF %rsi /* arg2 */
+#define CNT %rdx /* arg3 */
+
+#define REG_A %ecx
+#define REG_B %esi
+#define REG_C %edi
+#define REG_D %eax
+#define REG_E %edx
+#define REG_TB %ebx
+#define REG_TA %r12d
+#define REG_RA %rcx
+#define REG_RB %rsi
+#define REG_RC %rdi
+#define REG_RD %rax
+#define REG_RE %rdx
+#define REG_RTA %r12
+#define REG_RTB %rbx
+#define REG_T1 %r11d
+#define xmm_mov vmovups
+#define avx2_zeroupper vzeroupper
+#define RND_F1 1
+#define RND_F2 2
+#define RND_F3 3
+
+.macro REGALLOC
+ .set A, REG_A
+ .set B, REG_B
+ .set C, REG_C
+ .set D, REG_D
+ .set E, REG_E
+ .set TB, REG_TB
+ .set TA, REG_TA
+
+ .set RA, REG_RA
+ .set RB, REG_RB
+ .set RC, REG_RC
+ .set RD, REG_RD
+ .set RE, REG_RE
+
+ .set RTA, REG_RTA
+ .set RTB, REG_RTB
+
+ .set T1, REG_T1
+.endm
+
+#define HASH_PTR %r9
+#define BLOCKS_CTR %r8
+#define BUFFER_PTR %r10
+#define BUFFER_PTR2 %r13
+
+#define PRECALC_BUF %r14
+#define WK_BUF %r15
+
+#define W_TMP %xmm0
+#define WY_TMP %ymm0
+#define WY_TMP2 %ymm9
+
+# AVX2 variables
+#define WY0 %ymm3
+#define WY4 %ymm5
+#define WY08 %ymm7
+#define WY12 %ymm8
+#define WY16 %ymm12
+#define WY20 %ymm13
+#define WY24 %ymm14
+#define WY28 %ymm15
+
+#define YMM_SHUFB_BSWAP %ymm10
+
+/*
+ * Keep 2 iterations precalculated at a time:
+ * - 80 DWORDs per iteration * 2
+ */
+#define W_SIZE (80*2*2 +16)
+
+#define WK(t) ((((t) % 80) / 4)*32 + ( (t) % 4)*4 + ((t)/80)*16 )(WK_BUF)
+#define PRECALC_WK(t) ((t)*2*2)(PRECALC_BUF)
+
+
+.macro UPDATE_HASH hash, val
+ add \hash, \val
+ mov \val, \hash
+.endm
+
+.macro PRECALC_RESET_WY
+ .set WY_00, WY0
+ .set WY_04, WY4
+ .set WY_08, WY08
+ .set WY_12, WY12
+ .set WY_16, WY16
+ .set WY_20, WY20
+ .set WY_24, WY24
+ .set WY_28, WY28
+ .set WY_32, WY_00
+.endm
+
+.macro PRECALC_ROTATE_WY
+ /* Rotate macros */
+ .set WY_32, WY_28
+ .set WY_28, WY_24
+ .set WY_24, WY_20
+ .set WY_20, WY_16
+ .set WY_16, WY_12
+ .set WY_12, WY_08
+ .set WY_08, WY_04
+ .set WY_04, WY_00
+ .set WY_00, WY_32
+
+ /* Define register aliases */
+ .set WY, WY_00
+ .set WY_minus_04, WY_04
+ .set WY_minus_08, WY_08
+ .set WY_minus_12, WY_12
+ .set WY_minus_16, WY_16
+ .set WY_minus_20, WY_20
+ .set WY_minus_24, WY_24
+ .set WY_minus_28, WY_28
+ .set WY_minus_32, WY
+.endm
+
+.macro PRECALC_00_15
+ .if (i == 0) # Initialize and rotate registers
+ PRECALC_RESET_WY
+ PRECALC_ROTATE_WY
+ .endif
+
+ /* message scheduling pre-compute for rounds 0-15 */
+ .if ((i & 7) == 0)
+ /*
+ * blended AVX2 and ALU instruction scheduling
+ * 1 vector iteration per 8 rounds
+ */
+ vmovdqu (i * 2)(BUFFER_PTR), W_TMP
+ .elseif ((i & 7) == 1)
+ vinsertf128 $1, ((i-1) * 2)(BUFFER_PTR2),\
+ WY_TMP, WY_TMP
+ .elseif ((i & 7) == 2)
+ vpshufb YMM_SHUFB_BSWAP, WY_TMP, WY
+ .elseif ((i & 7) == 4)
+ vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP
+ .elseif ((i & 7) == 7)
+ vmovdqu WY_TMP, PRECALC_WK(i&~7)
+
+ PRECALC_ROTATE_WY
+ .endif
+.endm
+
+.macro PRECALC_16_31
+ /*
+ * message scheduling pre-compute for rounds 16-31
+ * calculating last 32 w[i] values in 8 XMM registers
+ * pre-calculate K+w[i] values and store to mem
+ * for later load by ALU add instruction
+ *
+ * "brute force" vectorization for rounds 16-31 only
+ * due to w[i]->w[i-3] dependency
+ */
+ .if ((i & 7) == 0)
+ /*
+ * blended AVX2 and ALU instruction scheduling
+ * 1 vector iteration per 8 rounds
+ */
+ /* w[i-14] */
+ vpalignr $8, WY_minus_16, WY_minus_12, WY
+ vpsrldq $4, WY_minus_04, WY_TMP /* w[i-3] */
+ .elseif ((i & 7) == 1)
+ vpxor WY_minus_08, WY, WY
+ vpxor WY_minus_16, WY_TMP, WY_TMP
+ .elseif ((i & 7) == 2)
+ vpxor WY_TMP, WY, WY
+ vpslldq $12, WY, WY_TMP2
+ .elseif ((i & 7) == 3)
+ vpslld $1, WY, WY_TMP
+ vpsrld $31, WY, WY
+ .elseif ((i & 7) == 4)
+ vpor WY, WY_TMP, WY_TMP
+ vpslld $2, WY_TMP2, WY
+ .elseif ((i & 7) == 5)
+ vpsrld $30, WY_TMP2, WY_TMP2
+ vpxor WY, WY_TMP, WY_TMP
+ .elseif ((i & 7) == 7)
+ vpxor WY_TMP2, WY_TMP, WY
+ vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP
+ vmovdqu WY_TMP, PRECALC_WK(i&~7)
+
+ PRECALC_ROTATE_WY
+ .endif
+.endm
+
+.macro PRECALC_32_79
+ /*
+ * in SHA-1 specification:
+ * w[i] = (w[i-3] ^ w[i-8] ^ w[i-14] ^ w[i-16]) rol 1
+ * instead we do equal:
+ * w[i] = (w[i-6] ^ w[i-16] ^ w[i-28] ^ w[i-32]) rol 2
+ * allows more efficient vectorization
+ * since w[i]=>w[i-3] dependency is broken
+ */
+
+ .if ((i & 7) == 0)
+ /*
+ * blended AVX2 and ALU instruction scheduling
+ * 1 vector iteration per 8 rounds
+ */
+ vpalignr $8, WY_minus_08, WY_minus_04, WY_TMP
+ .elseif ((i & 7) == 1)
+ /* W is W_minus_32 before xor */
+ vpxor WY_minus_28, WY, WY
+ .elseif ((i & 7) == 2)
+ vpxor WY_minus_16, WY_TMP, WY_TMP
+ .elseif ((i & 7) == 3)
+ vpxor WY_TMP, WY, WY
+ .elseif ((i & 7) == 4)
+ vpslld $2, WY, WY_TMP
+ .elseif ((i & 7) == 5)
+ vpsrld $30, WY, WY
+ vpor WY, WY_TMP, WY
+ .elseif ((i & 7) == 7)
+ vpaddd K_XMM + K_XMM_AR(%rip), WY, WY_TMP
+ vmovdqu WY_TMP, PRECALC_WK(i&~7)
+
+ PRECALC_ROTATE_WY
+ .endif
+.endm
+
+.macro PRECALC r, s
+ .set i, \r
+
+ .if (i < 40)
+ .set K_XMM, 32*0
+ .elseif (i < 80)
+ .set K_XMM, 32*1
+ .elseif (i < 120)
+ .set K_XMM, 32*2
+ .else
+ .set K_XMM, 32*3
+ .endif
+
+ .if (i<32)
+ PRECALC_00_15 \s
+ .elseif (i<64)
+ PRECALC_16_31 \s
+ .elseif (i < 160)
+ PRECALC_32_79 \s
+ .endif
+.endm
+
+.macro ROTATE_STATE
+ .set T_REG, E
+ .set E, D
+ .set D, C
+ .set C, B
+ .set B, TB
+ .set TB, A
+ .set A, T_REG
+
+ .set T_REG, RE
+ .set RE, RD
+ .set RD, RC
+ .set RC, RB
+ .set RB, RTB
+ .set RTB, RA
+ .set RA, T_REG
+.endm
+
+/* Macro relies on saved ROUND_Fx */
+
+.macro RND_FUN f, r
+ .if (\f == RND_F1)
+ ROUND_F1 \r
+ .elseif (\f == RND_F2)
+ ROUND_F2 \r
+ .elseif (\f == RND_F3)
+ ROUND_F3 \r
+ .endif
+.endm
+
+.macro RR r
+ .set round_id, (\r % 80)
+
+ .if (round_id == 0) /* Precalculate F for first round */
+ .set ROUND_FUNC, RND_F1
+ mov B, TB
+
+ rorx $(32-30), B, B /* b>>>2 */
+ andn D, TB, T1
+ and C, TB
+ xor T1, TB
+ .endif
+
+ RND_FUN ROUND_FUNC, \r
+ ROTATE_STATE
+
+ .if (round_id == 18)
+ .set ROUND_FUNC, RND_F2
+ .elseif (round_id == 38)
+ .set ROUND_FUNC, RND_F3
+ .elseif (round_id == 58)
+ .set ROUND_FUNC, RND_F2
+ .endif
+
+ .set round_id, ( (\r+1) % 80)
+
+ RND_FUN ROUND_FUNC, (\r+1)
+ ROTATE_STATE
+.endm
+
+.macro ROUND_F1 r
+ add WK(\r), E
+
+ andn C, A, T1 /* ~b&d */
+ lea (RE,RTB), E /* Add F from the previous round */
+
+ rorx $(32-5), A, TA /* T2 = A >>> 5 */
+ rorx $(32-30),A, TB /* b>>>2 for next round */
+
+ PRECALC (\r) /* msg scheduling for next 2 blocks */
+
+ /*
+ * Calculate F for the next round
+ * (b & c) ^ andn[b, d]
+ */
+ and B, A /* b&c */
+ xor T1, A /* F1 = (b&c) ^ (~b&d) */
+
+ lea (RE,RTA), E /* E += A >>> 5 */
+.endm
+
+.macro ROUND_F2 r
+ add WK(\r), E
+ lea (RE,RTB), E /* Add F from the previous round */
+
+ /* Calculate F for the next round */
+ rorx $(32-5), A, TA /* T2 = A >>> 5 */
+ .if ((round_id) < 79)
+ rorx $(32-30), A, TB /* b>>>2 for next round */
+ .endif
+ PRECALC (\r) /* msg scheduling for next 2 blocks */
+
+ .if ((round_id) < 79)
+ xor B, A
+ .endif
+
+ add TA, E /* E += A >>> 5 */
+
+ .if ((round_id) < 79)
+ xor C, A
+ .endif
+.endm
+
+.macro ROUND_F3 r
+ add WK(\r), E
+ PRECALC (\r) /* msg scheduling for next 2 blocks */
+
+ lea (RE,RTB), E /* Add F from the previous round */
+
+ mov B, T1
+ or A, T1
+
+ rorx $(32-5), A, TA /* T2 = A >>> 5 */
+ rorx $(32-30), A, TB /* b>>>2 for next round */
+
+ /* Calculate F for the next round
+ * (b and c) or (d and (b or c))
+ */
+ and C, T1
+ and B, A
+ or T1, A
+
+ add TA, E /* E += A >>> 5 */
+
+.endm
+
+/* Add constant only if (%2 > %3) condition met (uses RTA as temp)
+ * %1 + %2 >= %3 ? %4 : 0
+ */
+.macro ADD_IF_GE a, b, c, d
+ mov \a, RTA
+ add $\d, RTA
+ cmp $\c, \b
+ cmovge RTA, \a
+.endm
+
+/*
+ * macro implements 80 rounds of SHA-1, for multiple blocks with s/w pipelining
+ */
+.macro SHA1_PIPELINED_MAIN_BODY
+
+ REGALLOC
+
+ mov (HASH_PTR), A
+ mov 4(HASH_PTR), B
+ mov 8(HASH_PTR), C
+ mov 12(HASH_PTR), D
+ mov 16(HASH_PTR), E
+
+ mov %rsp, PRECALC_BUF
+ lea (2*4*80+32)(%rsp), WK_BUF
+
+ # Precalc WK for first 2 blocks
+ ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 2, 64
+ .set i, 0
+ .rept 160
+ PRECALC i
+ .set i, i + 1
+ .endr
+
+ /* Go to next block if needed */
+ ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 3, 128
+ ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
+ xchg WK_BUF, PRECALC_BUF
+
+ .align 32
+.L_loop:
+ /*
+ * code loops through more than one block
+ * we use K_BASE value as a signal of a last block,
+ * it is set below by: cmovae BUFFER_PTR, K_BASE
+ */
+ test BLOCKS_CTR, BLOCKS_CTR
+ jnz .L_begin
+ .align 32
+ jmp .L_end
+ .align 32
+.L_begin:
+
+ /*
+ * Do first block
+ * rounds: 0,2,4,6,8
+ */
+ .set j, 0
+ .rept 5
+ RR j
+ .set j, j+2
+ .endr
+
+ /*
+ * rounds:
+ * 10,12,14,16,18
+ * 20,22,24,26,28
+ * 30,32,34,36,38
+ * 40,42,44,46,48
+ * 50,52,54,56,58
+ */
+ .rept 25
+ RR j
+ .set j, j+2
+ .endr
+
+ /* Update Counter */
+ sub $1, BLOCKS_CTR
+ /* Move to the next block only if needed*/
+ ADD_IF_GE BUFFER_PTR, BLOCKS_CTR, 4, 128
+ /*
+ * rounds
+ * 60,62,64,66,68
+ * 70,72,74,76,78
+ */
+ .rept 10
+ RR j
+ .set j, j+2
+ .endr
+
+ UPDATE_HASH (HASH_PTR), A
+ UPDATE_HASH 4(HASH_PTR), TB
+ UPDATE_HASH 8(HASH_PTR), C
+ UPDATE_HASH 12(HASH_PTR), D
+ UPDATE_HASH 16(HASH_PTR), E
+
+ test BLOCKS_CTR, BLOCKS_CTR
+ jz .L_loop
+
+ mov TB, B
+
+ /* Process second block */
+ /*
+ * rounds
+ * 0+80, 2+80, 4+80, 6+80, 8+80
+ * 10+80,12+80,14+80,16+80,18+80
+ */
+
+ .set j, 0
+ .rept 10
+ RR j+80
+ .set j, j+2
+ .endr
+
+ /*
+ * rounds
+ * 20+80,22+80,24+80,26+80,28+80
+ * 30+80,32+80,34+80,36+80,38+80
+ */
+ .rept 10
+ RR j+80
+ .set j, j+2
+ .endr
+
+ /*
+ * rounds
+ * 40+80,42+80,44+80,46+80,48+80
+ * 50+80,52+80,54+80,56+80,58+80
+ */
+ .rept 10
+ RR j+80
+ .set j, j+2
+ .endr
+
+ /* update counter */
+ sub $1, BLOCKS_CTR
+ /* Move to the next block only if needed*/
+ ADD_IF_GE BUFFER_PTR2, BLOCKS_CTR, 4, 128
+
+ /*
+ * rounds
+ * 60+80,62+80,64+80,66+80,68+80
+ * 70+80,72+80,74+80,76+80,78+80
+ */
+ .rept 10
+ RR j+80
+ .set j, j+2
+ .endr
+
+ UPDATE_HASH (HASH_PTR), A
+ UPDATE_HASH 4(HASH_PTR), TB
+ UPDATE_HASH 8(HASH_PTR), C
+ UPDATE_HASH 12(HASH_PTR), D
+ UPDATE_HASH 16(HASH_PTR), E
+
+ /* Reset state for AVX2 reg permutation */
+ mov A, TA
+ mov TB, A
+ mov C, TB
+ mov E, C
+ mov D, B
+ mov TA, D
+
+ REGALLOC
+
+ xchg WK_BUF, PRECALC_BUF
+
+ jmp .L_loop
+
+ .align 32
+.L_end:
+
+.endm
+/*
+ * macro implements SHA-1 function's body for several 64-byte blocks
+ * param: function's name
+ */
+.macro SHA1_VECTOR_ASM name
+ SYM_FUNC_START(\name)
+
+ push %rbx
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+
+ RESERVE_STACK = (W_SIZE*4 + 8+24)
+
+ /* Align stack */
+ push %rbp
+ mov %rsp, %rbp
+ and $~(0x20-1), %rsp
+ sub $RESERVE_STACK, %rsp
+
+ avx2_zeroupper
+
+ /* Setup initial values */
+ mov CTX, HASH_PTR
+ mov BUF, BUFFER_PTR
+
+ mov BUF, BUFFER_PTR2
+ mov CNT, BLOCKS_CTR
+
+ xmm_mov BSWAP_SHUFB_CTL(%rip), YMM_SHUFB_BSWAP
+
+ SHA1_PIPELINED_MAIN_BODY
+
+ avx2_zeroupper
+
+ mov %rbp, %rsp
+ pop %rbp
+
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbx
+
+ RET
+
+ SYM_FUNC_END(\name)
+.endm
+
+.section .rodata
+
+#define K1 0x5a827999
+#define K2 0x6ed9eba1
+#define K3 0x8f1bbcdc
+#define K4 0xca62c1d6
+
+.align 128
+K_XMM_AR:
+ .long K1, K1, K1, K1
+ .long K1, K1, K1, K1
+ .long K2, K2, K2, K2
+ .long K2, K2, K2, K2
+ .long K3, K3, K3, K3
+ .long K3, K3, K3, K3
+ .long K4, K4, K4, K4
+ .long K4, K4, K4, K4
+
+BSWAP_SHUFB_CTL:
+ .long 0x00010203
+ .long 0x04050607
+ .long 0x08090a0b
+ .long 0x0c0d0e0f
+ .long 0x00010203
+ .long 0x04050607
+ .long 0x08090a0b
+ .long 0x0c0d0e0f
+.text
+
+SHA1_VECTOR_ASM sha1_transform_avx2
diff --git a/arch/x86/crypto/sha1_ni_asm.S b/arch/x86/crypto/sha1_ni_asm.S
new file mode 100644
index 000000000000..cade913d4882
--- /dev/null
+++ b/arch/x86/crypto/sha1_ni_asm.S
@@ -0,0 +1,304 @@
+/*
+ * Intel SHA Extensions optimized implementation of a SHA-1 update function
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Contact Information:
+ * Sean Gulley <sean.m.gulley@intel.com>
+ * Tim Chen <tim.c.chen@linux.intel.com>
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+#define DIGEST_PTR %rdi /* 1st arg */
+#define DATA_PTR %rsi /* 2nd arg */
+#define NUM_BLKS %rdx /* 3rd arg */
+
+/* gcc conversion */
+#define FRAME_SIZE 32 /* space for 2x16 bytes */
+
+#define ABCD %xmm0
+#define E0 %xmm1 /* Need two E's b/c they ping pong */
+#define E1 %xmm2
+#define MSG0 %xmm3
+#define MSG1 %xmm4
+#define MSG2 %xmm5
+#define MSG3 %xmm6
+#define SHUF_MASK %xmm7
+
+
+/*
+ * Intel SHA Extensions optimized implementation of a SHA-1 update function
+ *
+ * The function takes a pointer to the current hash values, a pointer to the
+ * input data, and a number of 64 byte blocks to process. Once all blocks have
+ * been processed, the digest pointer is updated with the resulting hash value.
+ * The function only processes complete blocks, there is no functionality to
+ * store partial blocks. All message padding and hash value initialization must
+ * be done outside the update function.
+ *
+ * The indented lines in the loop are instructions related to rounds processing.
+ * The non-indented lines are instructions related to the message schedule.
+ *
+ * void sha1_ni_transform(uint32_t *digest, const void *data,
+ uint32_t numBlocks)
+ * digest : pointer to digest
+ * data: pointer to input data
+ * numBlocks: Number of blocks to process
+ */
+.text
+SYM_TYPED_FUNC_START(sha1_ni_transform)
+ push %rbp
+ mov %rsp, %rbp
+ sub $FRAME_SIZE, %rsp
+ and $~0xF, %rsp
+
+ shl $6, NUM_BLKS /* convert to bytes */
+ jz .Ldone_hash
+ add DATA_PTR, NUM_BLKS /* pointer to end of data */
+
+ /* load initial hash values */
+ pinsrd $3, 1*16(DIGEST_PTR), E0
+ movdqu 0*16(DIGEST_PTR), ABCD
+ pand UPPER_WORD_MASK(%rip), E0
+ pshufd $0x1B, ABCD, ABCD
+
+ movdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), SHUF_MASK
+
+.Lloop0:
+ /* Save hash values for addition after rounds */
+ movdqa E0, (0*16)(%rsp)
+ movdqa ABCD, (1*16)(%rsp)
+
+ /* Rounds 0-3 */
+ movdqu 0*16(DATA_PTR), MSG0
+ pshufb SHUF_MASK, MSG0
+ paddd MSG0, E0
+ movdqa ABCD, E1
+ sha1rnds4 $0, E0, ABCD
+
+ /* Rounds 4-7 */
+ movdqu 1*16(DATA_PTR), MSG1
+ pshufb SHUF_MASK, MSG1
+ sha1nexte MSG1, E1
+ movdqa ABCD, E0
+ sha1rnds4 $0, E1, ABCD
+ sha1msg1 MSG1, MSG0
+
+ /* Rounds 8-11 */
+ movdqu 2*16(DATA_PTR), MSG2
+ pshufb SHUF_MASK, MSG2
+ sha1nexte MSG2, E0
+ movdqa ABCD, E1
+ sha1rnds4 $0, E0, ABCD
+ sha1msg1 MSG2, MSG1
+ pxor MSG2, MSG0
+
+ /* Rounds 12-15 */
+ movdqu 3*16(DATA_PTR), MSG3
+ pshufb SHUF_MASK, MSG3
+ sha1nexte MSG3, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG3, MSG0
+ sha1rnds4 $0, E1, ABCD
+ sha1msg1 MSG3, MSG2
+ pxor MSG3, MSG1
+
+ /* Rounds 16-19 */
+ sha1nexte MSG0, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG0, MSG1
+ sha1rnds4 $0, E0, ABCD
+ sha1msg1 MSG0, MSG3
+ pxor MSG0, MSG2
+
+ /* Rounds 20-23 */
+ sha1nexte MSG1, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG1, MSG2
+ sha1rnds4 $1, E1, ABCD
+ sha1msg1 MSG1, MSG0
+ pxor MSG1, MSG3
+
+ /* Rounds 24-27 */
+ sha1nexte MSG2, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG2, MSG3
+ sha1rnds4 $1, E0, ABCD
+ sha1msg1 MSG2, MSG1
+ pxor MSG2, MSG0
+
+ /* Rounds 28-31 */
+ sha1nexte MSG3, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG3, MSG0
+ sha1rnds4 $1, E1, ABCD
+ sha1msg1 MSG3, MSG2
+ pxor MSG3, MSG1
+
+ /* Rounds 32-35 */
+ sha1nexte MSG0, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG0, MSG1
+ sha1rnds4 $1, E0, ABCD
+ sha1msg1 MSG0, MSG3
+ pxor MSG0, MSG2
+
+ /* Rounds 36-39 */
+ sha1nexte MSG1, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG1, MSG2
+ sha1rnds4 $1, E1, ABCD
+ sha1msg1 MSG1, MSG0
+ pxor MSG1, MSG3
+
+ /* Rounds 40-43 */
+ sha1nexte MSG2, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG2, MSG3
+ sha1rnds4 $2, E0, ABCD
+ sha1msg1 MSG2, MSG1
+ pxor MSG2, MSG0
+
+ /* Rounds 44-47 */
+ sha1nexte MSG3, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG3, MSG0
+ sha1rnds4 $2, E1, ABCD
+ sha1msg1 MSG3, MSG2
+ pxor MSG3, MSG1
+
+ /* Rounds 48-51 */
+ sha1nexte MSG0, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG0, MSG1
+ sha1rnds4 $2, E0, ABCD
+ sha1msg1 MSG0, MSG3
+ pxor MSG0, MSG2
+
+ /* Rounds 52-55 */
+ sha1nexte MSG1, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG1, MSG2
+ sha1rnds4 $2, E1, ABCD
+ sha1msg1 MSG1, MSG0
+ pxor MSG1, MSG3
+
+ /* Rounds 56-59 */
+ sha1nexte MSG2, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG2, MSG3
+ sha1rnds4 $2, E0, ABCD
+ sha1msg1 MSG2, MSG1
+ pxor MSG2, MSG0
+
+ /* Rounds 60-63 */
+ sha1nexte MSG3, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG3, MSG0
+ sha1rnds4 $3, E1, ABCD
+ sha1msg1 MSG3, MSG2
+ pxor MSG3, MSG1
+
+ /* Rounds 64-67 */
+ sha1nexte MSG0, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG0, MSG1
+ sha1rnds4 $3, E0, ABCD
+ sha1msg1 MSG0, MSG3
+ pxor MSG0, MSG2
+
+ /* Rounds 68-71 */
+ sha1nexte MSG1, E1
+ movdqa ABCD, E0
+ sha1msg2 MSG1, MSG2
+ sha1rnds4 $3, E1, ABCD
+ pxor MSG1, MSG3
+
+ /* Rounds 72-75 */
+ sha1nexte MSG2, E0
+ movdqa ABCD, E1
+ sha1msg2 MSG2, MSG3
+ sha1rnds4 $3, E0, ABCD
+
+ /* Rounds 76-79 */
+ sha1nexte MSG3, E1
+ movdqa ABCD, E0
+ sha1rnds4 $3, E1, ABCD
+
+ /* Add current hash values with previously saved */
+ sha1nexte (0*16)(%rsp), E0
+ paddd (1*16)(%rsp), ABCD
+
+ /* Increment data pointer and loop if more to process */
+ add $64, DATA_PTR
+ cmp NUM_BLKS, DATA_PTR
+ jne .Lloop0
+
+ /* Write hash values back in the correct order */
+ pshufd $0x1B, ABCD, ABCD
+ movdqu ABCD, 0*16(DIGEST_PTR)
+ pextrd $3, E0, 1*16(DIGEST_PTR)
+
+.Ldone_hash:
+ mov %rbp, %rsp
+ pop %rbp
+
+ RET
+SYM_FUNC_END(sha1_ni_transform)
+
+.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16
+.align 16
+PSHUFFLE_BYTE_FLIP_MASK:
+ .octa 0x000102030405060708090a0b0c0d0e0f
+
+.section .rodata.cst16.UPPER_WORD_MASK, "aM", @progbits, 16
+.align 16
+UPPER_WORD_MASK:
+ .octa 0xFFFFFFFF000000000000000000000000
diff --git a/arch/x86/crypto/sha1_ssse3_asm.S b/arch/x86/crypto/sha1_ssse3_asm.S
new file mode 100644
index 000000000000..f54988c80eb4
--- /dev/null
+++ b/arch/x86/crypto/sha1_ssse3_asm.S
@@ -0,0 +1,554 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * This is a SIMD SHA-1 implementation. It requires the Intel(R) Supplemental
+ * SSE3 instruction set extensions introduced in Intel Core Microarchitecture
+ * processors. CPUs supporting Intel(R) AVX extensions will get an additional
+ * boost.
+ *
+ * This work was inspired by the vectorized implementation of Dean Gaudet.
+ * Additional information on it can be found at:
+ * http://www.arctic.org/~dean/crypto/sha1.html
+ *
+ * It was improved upon with more efficient vectorization of the message
+ * scheduling. This implementation has also been optimized for all current and
+ * several future generations of Intel CPUs.
+ *
+ * See this article for more information about the implementation details:
+ * http://software.intel.com/en-us/articles/improving-the-performance-of-the-secure-hash-algorithm-1/
+ *
+ * Copyright (C) 2010, Intel Corp.
+ * Authors: Maxim Locktyukhin <maxim.locktyukhin@intel.com>
+ * Ronen Zohar <ronen.zohar@intel.com>
+ *
+ * Converted to AT&T syntax and adapted for inclusion in the Linux kernel:
+ * Author: Mathias Krause <minipli@googlemail.com>
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+#define CTX %rdi // arg1
+#define BUF %rsi // arg2
+#define CNT %rdx // arg3
+
+#define REG_A %ecx
+#define REG_B %esi
+#define REG_C %edi
+#define REG_D %r12d
+#define REG_E %edx
+
+#define REG_T1 %eax
+#define REG_T2 %ebx
+
+#define K_BASE %r8
+#define HASH_PTR %r9
+#define BUFFER_PTR %r10
+#define BUFFER_END %r11
+
+#define W_TMP1 %xmm0
+#define W_TMP2 %xmm9
+
+#define W0 %xmm1
+#define W4 %xmm2
+#define W8 %xmm3
+#define W12 %xmm4
+#define W16 %xmm5
+#define W20 %xmm6
+#define W24 %xmm7
+#define W28 %xmm8
+
+#define XMM_SHUFB_BSWAP %xmm10
+
+/* we keep window of 64 w[i]+K pre-calculated values in a circular buffer */
+#define WK(t) (((t) & 15) * 4)(%rsp)
+#define W_PRECALC_AHEAD 16
+
+/*
+ * This macro implements the SHA-1 function's body for single 64-byte block
+ * param: function's name
+ */
+.macro SHA1_VECTOR_ASM name
+ SYM_TYPED_FUNC_START(\name)
+
+ push %rbx
+ push %r12
+ push %rbp
+ mov %rsp, %rbp
+
+ sub $64, %rsp # allocate workspace
+ and $~15, %rsp # align stack
+
+ mov CTX, HASH_PTR
+ mov BUF, BUFFER_PTR
+
+ shl $6, CNT # multiply by 64
+ add BUF, CNT
+ mov CNT, BUFFER_END
+
+ lea K_XMM_AR(%rip), K_BASE
+ xmm_mov BSWAP_SHUFB_CTL(%rip), XMM_SHUFB_BSWAP
+
+ SHA1_PIPELINED_MAIN_BODY
+
+ # cleanup workspace
+ mov $8, %ecx
+ mov %rsp, %rdi
+ xor %eax, %eax
+ rep stosq
+
+ mov %rbp, %rsp # deallocate workspace
+ pop %rbp
+ pop %r12
+ pop %rbx
+ RET
+
+ SYM_FUNC_END(\name)
+.endm
+
+/*
+ * This macro implements 80 rounds of SHA-1 for one 64-byte block
+ */
+.macro SHA1_PIPELINED_MAIN_BODY
+ INIT_REGALLOC
+
+ mov (HASH_PTR), A
+ mov 4(HASH_PTR), B
+ mov 8(HASH_PTR), C
+ mov 12(HASH_PTR), D
+ mov 16(HASH_PTR), E
+
+ .set i, 0
+ .rept W_PRECALC_AHEAD
+ W_PRECALC i
+ .set i, (i+1)
+ .endr
+
+.align 4
+1:
+ RR F1,A,B,C,D,E,0
+ RR F1,D,E,A,B,C,2
+ RR F1,B,C,D,E,A,4
+ RR F1,E,A,B,C,D,6
+ RR F1,C,D,E,A,B,8
+
+ RR F1,A,B,C,D,E,10
+ RR F1,D,E,A,B,C,12
+ RR F1,B,C,D,E,A,14
+ RR F1,E,A,B,C,D,16
+ RR F1,C,D,E,A,B,18
+
+ RR F2,A,B,C,D,E,20
+ RR F2,D,E,A,B,C,22
+ RR F2,B,C,D,E,A,24
+ RR F2,E,A,B,C,D,26
+ RR F2,C,D,E,A,B,28
+
+ RR F2,A,B,C,D,E,30
+ RR F2,D,E,A,B,C,32
+ RR F2,B,C,D,E,A,34
+ RR F2,E,A,B,C,D,36
+ RR F2,C,D,E,A,B,38
+
+ RR F3,A,B,C,D,E,40
+ RR F3,D,E,A,B,C,42
+ RR F3,B,C,D,E,A,44
+ RR F3,E,A,B,C,D,46
+ RR F3,C,D,E,A,B,48
+
+ RR F3,A,B,C,D,E,50
+ RR F3,D,E,A,B,C,52
+ RR F3,B,C,D,E,A,54
+ RR F3,E,A,B,C,D,56
+ RR F3,C,D,E,A,B,58
+
+ add $64, BUFFER_PTR # move to the next 64-byte block
+ cmp BUFFER_END, BUFFER_PTR # if the current is the last one use
+ cmovae K_BASE, BUFFER_PTR # dummy source to avoid buffer overrun
+
+ RR F4,A,B,C,D,E,60
+ RR F4,D,E,A,B,C,62
+ RR F4,B,C,D,E,A,64
+ RR F4,E,A,B,C,D,66
+ RR F4,C,D,E,A,B,68
+
+ RR F4,A,B,C,D,E,70
+ RR F4,D,E,A,B,C,72
+ RR F4,B,C,D,E,A,74
+ RR F4,E,A,B,C,D,76
+ RR F4,C,D,E,A,B,78
+
+ UPDATE_HASH (HASH_PTR), A
+ UPDATE_HASH 4(HASH_PTR), B
+ UPDATE_HASH 8(HASH_PTR), C
+ UPDATE_HASH 12(HASH_PTR), D
+ UPDATE_HASH 16(HASH_PTR), E
+
+ RESTORE_RENAMED_REGS
+ cmp K_BASE, BUFFER_PTR # K_BASE means, we reached the end
+ jne 1b
+.endm
+
+.macro INIT_REGALLOC
+ .set A, REG_A
+ .set B, REG_B
+ .set C, REG_C
+ .set D, REG_D
+ .set E, REG_E
+ .set T1, REG_T1
+ .set T2, REG_T2
+.endm
+
+.macro RESTORE_RENAMED_REGS
+ # order is important (REG_C is where it should be)
+ mov B, REG_B
+ mov D, REG_D
+ mov A, REG_A
+ mov E, REG_E
+.endm
+
+.macro SWAP_REG_NAMES a, b
+ .set _T, \a
+ .set \a, \b
+ .set \b, _T
+.endm
+
+.macro F1 b, c, d
+ mov \c, T1
+ SWAP_REG_NAMES \c, T1
+ xor \d, T1
+ and \b, T1
+ xor \d, T1
+.endm
+
+.macro F2 b, c, d
+ mov \d, T1
+ SWAP_REG_NAMES \d, T1
+ xor \c, T1
+ xor \b, T1
+.endm
+
+.macro F3 b, c ,d
+ mov \c, T1
+ SWAP_REG_NAMES \c, T1
+ mov \b, T2
+ or \b, T1
+ and \c, T2
+ and \d, T1
+ or T2, T1
+.endm
+
+.macro F4 b, c, d
+ F2 \b, \c, \d
+.endm
+
+.macro UPDATE_HASH hash, val
+ add \hash, \val
+ mov \val, \hash
+.endm
+
+/*
+ * RR does two rounds of SHA-1 back to back with W[] pre-calc
+ * t1 = F(b, c, d); e += w(i)
+ * e += t1; b <<= 30; d += w(i+1);
+ * t1 = F(a, b, c);
+ * d += t1; a <<= 5;
+ * e += a;
+ * t1 = e; a >>= 7;
+ * t1 <<= 5;
+ * d += t1;
+ */
+.macro RR F, a, b, c, d, e, round
+ add WK(\round), \e
+ \F \b, \c, \d # t1 = F(b, c, d);
+ W_PRECALC (\round + W_PRECALC_AHEAD)
+ rol $30, \b
+ add T1, \e
+ add WK(\round + 1), \d
+
+ \F \a, \b, \c
+ W_PRECALC (\round + W_PRECALC_AHEAD + 1)
+ rol $5, \a
+ add \a, \e
+ add T1, \d
+ ror $7, \a # (a <<r 5) >>r 7) => a <<r 30)
+
+ mov \e, T1
+ SWAP_REG_NAMES \e, T1
+
+ rol $5, T1
+ add T1, \d
+
+ # write: \a, \b
+ # rotate: \a<=\d, \b<=\e, \c<=\a, \d<=\b, \e<=\c
+.endm
+
+.macro W_PRECALC r
+ .set i, \r
+
+ .if (i < 20)
+ .set K_XMM, 0
+ .elseif (i < 40)
+ .set K_XMM, 16
+ .elseif (i < 60)
+ .set K_XMM, 32
+ .elseif (i < 80)
+ .set K_XMM, 48
+ .endif
+
+ .if ((i < 16) || ((i >= 80) && (i < (80 + W_PRECALC_AHEAD))))
+ .set i, ((\r) % 80) # pre-compute for the next iteration
+ .if (i == 0)
+ W_PRECALC_RESET
+ .endif
+ W_PRECALC_00_15
+ .elseif (i<32)
+ W_PRECALC_16_31
+ .elseif (i < 80) // rounds 32-79
+ W_PRECALC_32_79
+ .endif
+.endm
+
+.macro W_PRECALC_RESET
+ .set W, W0
+ .set W_minus_04, W4
+ .set W_minus_08, W8
+ .set W_minus_12, W12
+ .set W_minus_16, W16
+ .set W_minus_20, W20
+ .set W_minus_24, W24
+ .set W_minus_28, W28
+ .set W_minus_32, W
+.endm
+
+.macro W_PRECALC_ROTATE
+ .set W_minus_32, W_minus_28
+ .set W_minus_28, W_minus_24
+ .set W_minus_24, W_minus_20
+ .set W_minus_20, W_minus_16
+ .set W_minus_16, W_minus_12
+ .set W_minus_12, W_minus_08
+ .set W_minus_08, W_minus_04
+ .set W_minus_04, W
+ .set W, W_minus_32
+.endm
+
+.macro W_PRECALC_SSSE3
+
+.macro W_PRECALC_00_15
+ W_PRECALC_00_15_SSSE3
+.endm
+.macro W_PRECALC_16_31
+ W_PRECALC_16_31_SSSE3
+.endm
+.macro W_PRECALC_32_79
+ W_PRECALC_32_79_SSSE3
+.endm
+
+/* message scheduling pre-compute for rounds 0-15 */
+.macro W_PRECALC_00_15_SSSE3
+ .if ((i & 3) == 0)
+ movdqu (i*4)(BUFFER_PTR), W_TMP1
+ .elseif ((i & 3) == 1)
+ pshufb XMM_SHUFB_BSWAP, W_TMP1
+ movdqa W_TMP1, W
+ .elseif ((i & 3) == 2)
+ paddd (K_BASE), W_TMP1
+ .elseif ((i & 3) == 3)
+ movdqa W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+/* message scheduling pre-compute for rounds 16-31
+ *
+ * - calculating last 32 w[i] values in 8 XMM registers
+ * - pre-calculate K+w[i] values and store to mem, for later load by ALU add
+ * instruction
+ *
+ * some "heavy-lifting" vectorization for rounds 16-31 due to w[i]->w[i-3]
+ * dependency, but improves for 32-79
+ */
+.macro W_PRECALC_16_31_SSSE3
+ # blended scheduling of vector and scalar instruction streams, one 4-wide
+ # vector iteration / 4 scalar rounds
+ .if ((i & 3) == 0)
+ movdqa W_minus_12, W
+ palignr $8, W_minus_16, W # w[i-14]
+ movdqa W_minus_04, W_TMP1
+ psrldq $4, W_TMP1 # w[i-3]
+ pxor W_minus_08, W
+ .elseif ((i & 3) == 1)
+ pxor W_minus_16, W_TMP1
+ pxor W_TMP1, W
+ movdqa W, W_TMP2
+ movdqa W, W_TMP1
+ pslldq $12, W_TMP2
+ .elseif ((i & 3) == 2)
+ psrld $31, W
+ pslld $1, W_TMP1
+ por W, W_TMP1
+ movdqa W_TMP2, W
+ psrld $30, W_TMP2
+ pslld $2, W
+ .elseif ((i & 3) == 3)
+ pxor W, W_TMP1
+ pxor W_TMP2, W_TMP1
+ movdqa W_TMP1, W
+ paddd K_XMM(K_BASE), W_TMP1
+ movdqa W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+/* message scheduling pre-compute for rounds 32-79
+ *
+ * in SHA-1 specification: w[i] = (w[i-3] ^ w[i-8] ^ w[i-14] ^ w[i-16]) rol 1
+ * instead we do equal: w[i] = (w[i-6] ^ w[i-16] ^ w[i-28] ^ w[i-32]) rol 2
+ * allows more efficient vectorization since w[i]=>w[i-3] dependency is broken
+ */
+.macro W_PRECALC_32_79_SSSE3
+ .if ((i & 3) == 0)
+ movdqa W_minus_04, W_TMP1
+ pxor W_minus_28, W # W is W_minus_32 before xor
+ palignr $8, W_minus_08, W_TMP1
+ .elseif ((i & 3) == 1)
+ pxor W_minus_16, W
+ pxor W_TMP1, W
+ movdqa W, W_TMP1
+ .elseif ((i & 3) == 2)
+ psrld $30, W
+ pslld $2, W_TMP1
+ por W, W_TMP1
+ .elseif ((i & 3) == 3)
+ movdqa W_TMP1, W
+ paddd K_XMM(K_BASE), W_TMP1
+ movdqa W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+.endm // W_PRECALC_SSSE3
+
+
+#define K1 0x5a827999
+#define K2 0x6ed9eba1
+#define K3 0x8f1bbcdc
+#define K4 0xca62c1d6
+
+.section .rodata
+.align 16
+
+K_XMM_AR:
+ .long K1, K1, K1, K1
+ .long K2, K2, K2, K2
+ .long K3, K3, K3, K3
+ .long K4, K4, K4, K4
+
+BSWAP_SHUFB_CTL:
+ .long 0x00010203
+ .long 0x04050607
+ .long 0x08090a0b
+ .long 0x0c0d0e0f
+
+
+.section .text
+
+W_PRECALC_SSSE3
+.macro xmm_mov a, b
+ movdqu \a,\b
+.endm
+
+/*
+ * SSSE3 optimized implementation:
+ *
+ * extern "C" void sha1_transform_ssse3(struct sha1_state *state,
+ * const u8 *data, int blocks);
+ *
+ * Note that struct sha1_state is assumed to begin with u32 state[5].
+ */
+SHA1_VECTOR_ASM sha1_transform_ssse3
+
+.macro W_PRECALC_AVX
+
+.purgem W_PRECALC_00_15
+.macro W_PRECALC_00_15
+ W_PRECALC_00_15_AVX
+.endm
+.purgem W_PRECALC_16_31
+.macro W_PRECALC_16_31
+ W_PRECALC_16_31_AVX
+.endm
+.purgem W_PRECALC_32_79
+.macro W_PRECALC_32_79
+ W_PRECALC_32_79_AVX
+.endm
+
+.macro W_PRECALC_00_15_AVX
+ .if ((i & 3) == 0)
+ vmovdqu (i*4)(BUFFER_PTR), W_TMP1
+ .elseif ((i & 3) == 1)
+ vpshufb XMM_SHUFB_BSWAP, W_TMP1, W
+ .elseif ((i & 3) == 2)
+ vpaddd (K_BASE), W, W_TMP1
+ .elseif ((i & 3) == 3)
+ vmovdqa W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+.macro W_PRECALC_16_31_AVX
+ .if ((i & 3) == 0)
+ vpalignr $8, W_minus_16, W_minus_12, W # w[i-14]
+ vpsrldq $4, W_minus_04, W_TMP1 # w[i-3]
+ vpxor W_minus_08, W, W
+ vpxor W_minus_16, W_TMP1, W_TMP1
+ .elseif ((i & 3) == 1)
+ vpxor W_TMP1, W, W
+ vpslldq $12, W, W_TMP2
+ vpslld $1, W, W_TMP1
+ .elseif ((i & 3) == 2)
+ vpsrld $31, W, W
+ vpor W, W_TMP1, W_TMP1
+ vpslld $2, W_TMP2, W
+ vpsrld $30, W_TMP2, W_TMP2
+ .elseif ((i & 3) == 3)
+ vpxor W, W_TMP1, W_TMP1
+ vpxor W_TMP2, W_TMP1, W
+ vpaddd K_XMM(K_BASE), W, W_TMP1
+ vmovdqu W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+.macro W_PRECALC_32_79_AVX
+ .if ((i & 3) == 0)
+ vpalignr $8, W_minus_08, W_minus_04, W_TMP1
+ vpxor W_minus_28, W, W # W is W_minus_32 before xor
+ .elseif ((i & 3) == 1)
+ vpxor W_minus_16, W_TMP1, W_TMP1
+ vpxor W_TMP1, W, W
+ .elseif ((i & 3) == 2)
+ vpslld $2, W, W_TMP1
+ vpsrld $30, W, W
+ vpor W, W_TMP1, W
+ .elseif ((i & 3) == 3)
+ vpaddd K_XMM(K_BASE), W, W_TMP1
+ vmovdqu W_TMP1, WK(i&~3)
+ W_PRECALC_ROTATE
+ .endif
+.endm
+
+.endm // W_PRECALC_AVX
+
+W_PRECALC_AVX
+.purgem xmm_mov
+.macro xmm_mov a, b
+ vmovdqu \a,\b
+.endm
+
+
+/* AVX optimized implementation:
+ * extern "C" void sha1_transform_avx(struct sha1_state *state,
+ * const u8 *data, int blocks);
+ */
+SHA1_VECTOR_ASM sha1_transform_avx
diff --git a/arch/x86/crypto/sha1_ssse3_glue.c b/arch/x86/crypto/sha1_ssse3_glue.c
new file mode 100644
index 000000000000..44340a1139e0
--- /dev/null
+++ b/arch/x86/crypto/sha1_ssse3_glue.c
@@ -0,0 +1,350 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Cryptographic API.
+ *
+ * Glue code for the SHA1 Secure Hash Algorithm assembler implementation using
+ * Supplemental SSE3 instructions.
+ *
+ * This file is based on sha1_generic.c
+ *
+ * Copyright (c) Alan Smithee.
+ * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
+ * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
+ * Copyright (c) Mathias Krause <minipli@googlemail.com>
+ * Copyright (c) Chandramouli Narayanan <mouli@linux.intel.com>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/types.h>
+#include <crypto/sha1.h>
+#include <crypto/sha1_base.h>
+#include <asm/simd.h>
+
+static int sha1_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len, sha1_block_fn *sha1_xform)
+{
+ struct sha1_state *sctx = shash_desc_ctx(desc);
+
+ if (!crypto_simd_usable() ||
+ (sctx->count % SHA1_BLOCK_SIZE) + len < SHA1_BLOCK_SIZE)
+ return crypto_sha1_update(desc, data, len);
+
+ /*
+ * Make sure struct sha1_state begins directly with the SHA1
+ * 160-bit internal state, as this is what the asm functions expect.
+ */
+ BUILD_BUG_ON(offsetof(struct sha1_state, state) != 0);
+
+ kernel_fpu_begin();
+ sha1_base_do_update(desc, data, len, sha1_xform);
+ kernel_fpu_end();
+
+ return 0;
+}
+
+static int sha1_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out, sha1_block_fn *sha1_xform)
+{
+ if (!crypto_simd_usable())
+ return crypto_sha1_finup(desc, data, len, out);
+
+ kernel_fpu_begin();
+ if (len)
+ sha1_base_do_update(desc, data, len, sha1_xform);
+ sha1_base_do_finalize(desc, sha1_xform);
+ kernel_fpu_end();
+
+ return sha1_base_finish(desc, out);
+}
+
+asmlinkage void sha1_transform_ssse3(struct sha1_state *state,
+ const u8 *data, int blocks);
+
+static int sha1_ssse3_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return sha1_update(desc, data, len, sha1_transform_ssse3);
+}
+
+static int sha1_ssse3_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha1_finup(desc, data, len, out, sha1_transform_ssse3);
+}
+
+/* Add padding and return the message digest. */
+static int sha1_ssse3_final(struct shash_desc *desc, u8 *out)
+{
+ return sha1_ssse3_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha1_ssse3_alg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .init = sha1_base_init,
+ .update = sha1_ssse3_update,
+ .final = sha1_ssse3_final,
+ .finup = sha1_ssse3_finup,
+ .descsize = sizeof(struct sha1_state),
+ .base = {
+ .cra_name = "sha1",
+ .cra_driver_name = "sha1-ssse3",
+ .cra_priority = 150,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+};
+
+static int register_sha1_ssse3(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SSSE3))
+ return crypto_register_shash(&sha1_ssse3_alg);
+ return 0;
+}
+
+static void unregister_sha1_ssse3(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SSSE3))
+ crypto_unregister_shash(&sha1_ssse3_alg);
+}
+
+asmlinkage void sha1_transform_avx(struct sha1_state *state,
+ const u8 *data, int blocks);
+
+static int sha1_avx_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return sha1_update(desc, data, len, sha1_transform_avx);
+}
+
+static int sha1_avx_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha1_finup(desc, data, len, out, sha1_transform_avx);
+}
+
+static int sha1_avx_final(struct shash_desc *desc, u8 *out)
+{
+ return sha1_avx_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha1_avx_alg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .init = sha1_base_init,
+ .update = sha1_avx_update,
+ .final = sha1_avx_final,
+ .finup = sha1_avx_finup,
+ .descsize = sizeof(struct sha1_state),
+ .base = {
+ .cra_name = "sha1",
+ .cra_driver_name = "sha1-avx",
+ .cra_priority = 160,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+};
+
+static bool avx_usable(void)
+{
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
+ if (boot_cpu_has(X86_FEATURE_AVX))
+ pr_info("AVX detected but unusable.\n");
+ return false;
+ }
+
+ return true;
+}
+
+static int register_sha1_avx(void)
+{
+ if (avx_usable())
+ return crypto_register_shash(&sha1_avx_alg);
+ return 0;
+}
+
+static void unregister_sha1_avx(void)
+{
+ if (avx_usable())
+ crypto_unregister_shash(&sha1_avx_alg);
+}
+
+#define SHA1_AVX2_BLOCK_OPTSIZE 4 /* optimal 4*64 bytes of SHA1 blocks */
+
+asmlinkage void sha1_transform_avx2(struct sha1_state *state,
+ const u8 *data, int blocks);
+
+static bool avx2_usable(void)
+{
+ if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2)
+ && boot_cpu_has(X86_FEATURE_BMI1)
+ && boot_cpu_has(X86_FEATURE_BMI2))
+ return true;
+
+ return false;
+}
+
+static void sha1_apply_transform_avx2(struct sha1_state *state,
+ const u8 *data, int blocks)
+{
+ /* Select the optimal transform based on data block size */
+ if (blocks >= SHA1_AVX2_BLOCK_OPTSIZE)
+ sha1_transform_avx2(state, data, blocks);
+ else
+ sha1_transform_avx(state, data, blocks);
+}
+
+static int sha1_avx2_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return sha1_update(desc, data, len, sha1_apply_transform_avx2);
+}
+
+static int sha1_avx2_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha1_finup(desc, data, len, out, sha1_apply_transform_avx2);
+}
+
+static int sha1_avx2_final(struct shash_desc *desc, u8 *out)
+{
+ return sha1_avx2_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha1_avx2_alg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .init = sha1_base_init,
+ .update = sha1_avx2_update,
+ .final = sha1_avx2_final,
+ .finup = sha1_avx2_finup,
+ .descsize = sizeof(struct sha1_state),
+ .base = {
+ .cra_name = "sha1",
+ .cra_driver_name = "sha1-avx2",
+ .cra_priority = 170,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+};
+
+static int register_sha1_avx2(void)
+{
+ if (avx2_usable())
+ return crypto_register_shash(&sha1_avx2_alg);
+ return 0;
+}
+
+static void unregister_sha1_avx2(void)
+{
+ if (avx2_usable())
+ crypto_unregister_shash(&sha1_avx2_alg);
+}
+
+#ifdef CONFIG_AS_SHA1_NI
+asmlinkage void sha1_ni_transform(struct sha1_state *digest, const u8 *data,
+ int rounds);
+
+static int sha1_ni_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return sha1_update(desc, data, len, sha1_ni_transform);
+}
+
+static int sha1_ni_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha1_finup(desc, data, len, out, sha1_ni_transform);
+}
+
+static int sha1_ni_final(struct shash_desc *desc, u8 *out)
+{
+ return sha1_ni_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha1_ni_alg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .init = sha1_base_init,
+ .update = sha1_ni_update,
+ .final = sha1_ni_final,
+ .finup = sha1_ni_finup,
+ .descsize = sizeof(struct sha1_state),
+ .base = {
+ .cra_name = "sha1",
+ .cra_driver_name = "sha1-ni",
+ .cra_priority = 250,
+ .cra_blocksize = SHA1_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+};
+
+static int register_sha1_ni(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SHA_NI))
+ return crypto_register_shash(&sha1_ni_alg);
+ return 0;
+}
+
+static void unregister_sha1_ni(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SHA_NI))
+ crypto_unregister_shash(&sha1_ni_alg);
+}
+
+#else
+static inline int register_sha1_ni(void) { return 0; }
+static inline void unregister_sha1_ni(void) { }
+#endif
+
+static int __init sha1_ssse3_mod_init(void)
+{
+ if (register_sha1_ssse3())
+ goto fail;
+
+ if (register_sha1_avx()) {
+ unregister_sha1_ssse3();
+ goto fail;
+ }
+
+ if (register_sha1_avx2()) {
+ unregister_sha1_avx();
+ unregister_sha1_ssse3();
+ goto fail;
+ }
+
+ if (register_sha1_ni()) {
+ unregister_sha1_avx2();
+ unregister_sha1_avx();
+ unregister_sha1_ssse3();
+ goto fail;
+ }
+
+ return 0;
+fail:
+ return -ENODEV;
+}
+
+static void __exit sha1_ssse3_mod_fini(void)
+{
+ unregister_sha1_ni();
+ unregister_sha1_avx2();
+ unregister_sha1_avx();
+ unregister_sha1_ssse3();
+}
+
+module_init(sha1_ssse3_mod_init);
+module_exit(sha1_ssse3_mod_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, Supplemental SSE3 accelerated");
+
+MODULE_ALIAS_CRYPTO("sha1");
+MODULE_ALIAS_CRYPTO("sha1-ssse3");
+MODULE_ALIAS_CRYPTO("sha1-avx");
+MODULE_ALIAS_CRYPTO("sha1-avx2");
+#ifdef CONFIG_AS_SHA1_NI
+MODULE_ALIAS_CRYPTO("sha1-ni");
+#endif
diff --git a/arch/x86/crypto/sha256-avx-asm.S b/arch/x86/crypto/sha256-avx-asm.S
new file mode 100644
index 000000000000..53de72bdd851
--- /dev/null
+++ b/arch/x86/crypto/sha256-avx-asm.S
@@ -0,0 +1,499 @@
+########################################################################
+# Implement fast SHA-256 with AVX1 instructions. (x86_64)
+#
+# Copyright (C) 2013 Intel Corporation.
+#
+# Authors:
+# James Guilford <james.guilford@intel.com>
+# Kirk Yap <kirk.s.yap@intel.com>
+# Tim Chen <tim.c.chen@linux.intel.com>
+#
+# This software is available to you under a choice of one of two
+# licenses. You may choose to be licensed under the terms of the GNU
+# General Public License (GPL) Version 2, available from the file
+# COPYING in the main directory of this source tree, or the
+# OpenIB.org BSD license below:
+#
+# Redistribution and use in source and binary forms, with or
+# without modification, are permitted provided that the following
+# conditions are met:
+#
+# - Redistributions of source code must retain the above
+# copyright notice, this list of conditions and the following
+# disclaimer.
+#
+# - Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials
+# provided with the distribution.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+########################################################################
+#
+# This code is described in an Intel White-Paper:
+# "Fast SHA-256 Implementations on Intel Architecture Processors"
+#
+# To find it, surf to http://www.intel.com/p/en_US/embedded
+# and search for that title.
+#
+########################################################################
+# This code schedules 1 block at a time, with 4 lanes per block
+########################################################################
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+## assume buffers not aligned
+#define VMOVDQ vmovdqu
+
+################################ Define Macros
+
+# addm [mem], reg
+# Add reg to mem using reg-mem add and store
+.macro addm p1 p2
+ add \p1, \p2
+ mov \p2, \p1
+.endm
+
+
+.macro MY_ROR p1 p2
+ shld $(32-(\p1)), \p2, \p2
+.endm
+
+################################
+
+# COPY_XMM_AND_BSWAP xmm, [mem], byte_flip_mask
+# Load xmm with mem and byte swap each dword
+.macro COPY_XMM_AND_BSWAP p1 p2 p3
+ VMOVDQ \p2, \p1
+ vpshufb \p3, \p1, \p1
+.endm
+
+################################
+
+X0 = %xmm4
+X1 = %xmm5
+X2 = %xmm6
+X3 = %xmm7
+
+XTMP0 = %xmm0
+XTMP1 = %xmm1
+XTMP2 = %xmm2
+XTMP3 = %xmm3
+XTMP4 = %xmm8
+XFER = %xmm9
+XTMP5 = %xmm11
+
+SHUF_00BA = %xmm10 # shuffle xBxA -> 00BA
+SHUF_DC00 = %xmm12 # shuffle xDxC -> DC00
+BYTE_FLIP_MASK = %xmm13
+
+NUM_BLKS = %rdx # 3rd arg
+INP = %rsi # 2nd arg
+CTX = %rdi # 1st arg
+
+SRND = %rsi # clobbers INP
+c = %ecx
+d = %r8d
+e = %edx
+TBL = %r12
+a = %eax
+b = %ebx
+
+f = %r9d
+g = %r10d
+h = %r11d
+
+y0 = %r13d
+y1 = %r14d
+y2 = %r15d
+
+
+_INP_END_SIZE = 8
+_INP_SIZE = 8
+_XFER_SIZE = 16
+_XMM_SAVE_SIZE = 0
+
+_INP_END = 0
+_INP = _INP_END + _INP_END_SIZE
+_XFER = _INP + _INP_SIZE
+_XMM_SAVE = _XFER + _XFER_SIZE
+STACK_SIZE = _XMM_SAVE + _XMM_SAVE_SIZE
+
+# rotate_Xs
+# Rotate values of symbols X0...X3
+.macro rotate_Xs
+X_ = X0
+X0 = X1
+X1 = X2
+X2 = X3
+X3 = X_
+.endm
+
+# ROTATE_ARGS
+# Rotate values of symbols a...h
+.macro ROTATE_ARGS
+TMP_ = h
+h = g
+g = f
+f = e
+e = d
+d = c
+c = b
+b = a
+a = TMP_
+.endm
+
+.macro FOUR_ROUNDS_AND_SCHED
+ ## compute s0 four at a time and s1 two at a time
+ ## compute W[-16] + W[-7] 4 at a time
+
+ mov e, y0 # y0 = e
+ MY_ROR (25-11), y0 # y0 = e >> (25-11)
+ mov a, y1 # y1 = a
+ vpalignr $4, X2, X3, XTMP0 # XTMP0 = W[-7]
+ MY_ROR (22-13), y1 # y1 = a >> (22-13)
+ xor e, y0 # y0 = e ^ (e >> (25-11))
+ mov f, y2 # y2 = f
+ MY_ROR (11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6))
+ xor a, y1 # y1 = a ^ (a >> (22-13)
+ xor g, y2 # y2 = f^g
+ vpaddd X0, XTMP0, XTMP0 # XTMP0 = W[-7] + W[-16]
+ xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6))
+ and e, y2 # y2 = (f^g)&e
+ MY_ROR (13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2))
+ ## compute s0
+ vpalignr $4, X0, X1, XTMP1 # XTMP1 = W[-15]
+ xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2))
+ MY_ROR 6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25)
+ xor g, y2 # y2 = CH = ((f^g)&e)^g
+ MY_ROR 2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22)
+ add y0, y2 # y2 = S1 + CH
+ add _XFER(%rsp), y2 # y2 = k + w + S1 + CH
+ mov a, y0 # y0 = a
+ add y2, h # h = h + S1 + CH + k + w
+ mov a, y2 # y2 = a
+ vpsrld $7, XTMP1, XTMP2
+ or c, y0 # y0 = a|c
+ add h, d # d = d + h + S1 + CH + k + w
+ and c, y2 # y2 = a&c
+ vpslld $(32-7), XTMP1, XTMP3
+ and b, y0 # y0 = (a|c)&b
+ add y1, h # h = h + S1 + CH + k + w + S0
+ vpor XTMP2, XTMP3, XTMP3 # XTMP1 = W[-15] MY_ROR 7
+ or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c)
+ add y0, h # h = h + S1 + CH + k + w + S0 + MAJ
+ ROTATE_ARGS
+ mov e, y0 # y0 = e
+ mov a, y1 # y1 = a
+ MY_ROR (25-11), y0 # y0 = e >> (25-11)
+ xor e, y0 # y0 = e ^ (e >> (25-11))
+ mov f, y2 # y2 = f
+ MY_ROR (22-13), y1 # y1 = a >> (22-13)
+ vpsrld $18, XTMP1, XTMP2 #
+ xor a, y1 # y1 = a ^ (a >> (22-13)
+ MY_ROR (11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6))
+ xor g, y2 # y2 = f^g
+ vpsrld $3, XTMP1, XTMP4 # XTMP4 = W[-15] >> 3
+ MY_ROR (13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2))
+ xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6))
+ and e, y2 # y2 = (f^g)&e
+ MY_ROR 6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25)
+ vpslld $(32-18), XTMP1, XTMP1
+ xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2))
+ xor g, y2 # y2 = CH = ((f^g)&e)^g
+ vpxor XTMP1, XTMP3, XTMP3 #
+ add y0, y2 # y2 = S1 + CH
+ add (1*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH
+ MY_ROR 2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22)
+ vpxor XTMP2, XTMP3, XTMP3 # XTMP1 = W[-15] MY_ROR 7 ^ W[-15] MY_ROR
+ mov a, y0 # y0 = a
+ add y2, h # h = h + S1 + CH + k + w
+ mov a, y2 # y2 = a
+ vpxor XTMP4, XTMP3, XTMP1 # XTMP1 = s0
+ or c, y0 # y0 = a|c
+ add h, d # d = d + h + S1 + CH + k + w
+ and c, y2 # y2 = a&c
+ ## compute low s1
+ vpshufd $0b11111010, X3, XTMP2 # XTMP2 = W[-2] {BBAA}
+ and b, y0 # y0 = (a|c)&b
+ add y1, h # h = h + S1 + CH + k + w + S0
+ vpaddd XTMP1, XTMP0, XTMP0 # XTMP0 = W[-16] + W[-7] + s0
+ or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c)
+ add y0, h # h = h + S1 + CH + k + w + S0 + MAJ
+ ROTATE_ARGS
+ mov e, y0 # y0 = e
+ mov a, y1 # y1 = a
+ MY_ROR (25-11), y0 # y0 = e >> (25-11)
+ xor e, y0 # y0 = e ^ (e >> (25-11))
+ MY_ROR (22-13), y1 # y1 = a >> (22-13)
+ mov f, y2 # y2 = f
+ xor a, y1 # y1 = a ^ (a >> (22-13)
+ MY_ROR (11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6))
+ vpsrld $10, XTMP2, XTMP4 # XTMP4 = W[-2] >> 10 {BBAA}
+ xor g, y2 # y2 = f^g
+ vpsrlq $19, XTMP2, XTMP3 # XTMP3 = W[-2] MY_ROR 19 {xBxA}
+ xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6))
+ and e, y2 # y2 = (f^g)&e
+ vpsrlq $17, XTMP2, XTMP2 # XTMP2 = W[-2] MY_ROR 17 {xBxA}
+ MY_ROR (13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2))
+ xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2))
+ xor g, y2 # y2 = CH = ((f^g)&e)^g
+ MY_ROR 6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25)
+ vpxor XTMP3, XTMP2, XTMP2 #
+ add y0, y2 # y2 = S1 + CH
+ MY_ROR 2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22)
+ add (2*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH
+ vpxor XTMP2, XTMP4, XTMP4 # XTMP4 = s1 {xBxA}
+ mov a, y0 # y0 = a
+ add y2, h # h = h + S1 + CH + k + w
+ mov a, y2 # y2 = a
+ vpshufb SHUF_00BA, XTMP4, XTMP4 # XTMP4 = s1 {00BA}
+ or c, y0 # y0 = a|c
+ add h, d # d = d + h + S1 + CH + k + w
+ and c, y2 # y2 = a&c
+ vpaddd XTMP4, XTMP0, XTMP0 # XTMP0 = {..., ..., W[1], W[0]}
+ and b, y0 # y0 = (a|c)&b
+ add y1, h # h = h + S1 + CH + k + w + S0
+ ## compute high s1
+ vpshufd $0b01010000, XTMP0, XTMP2 # XTMP2 = W[-2] {DDCC}
+ or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c)
+ add y0, h # h = h + S1 + CH + k + w + S0 + MAJ
+ ROTATE_ARGS
+ mov e, y0 # y0 = e
+ MY_ROR (25-11), y0 # y0 = e >> (25-11)
+ mov a, y1 # y1 = a
+ MY_ROR (22-13), y1 # y1 = a >> (22-13)
+ xor e, y0 # y0 = e ^ (e >> (25-11))
+ mov f, y2 # y2 = f
+ MY_ROR (11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6))
+ vpsrld $10, XTMP2, XTMP5 # XTMP5 = W[-2] >> 10 {DDCC}
+ xor a, y1 # y1 = a ^ (a >> (22-13)
+ xor g, y2 # y2 = f^g
+ vpsrlq $19, XTMP2, XTMP3 # XTMP3 = W[-2] MY_ROR 19 {xDxC}
+ xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6))
+ and e, y2 # y2 = (f^g)&e
+ MY_ROR (13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2))
+ vpsrlq $17, XTMP2, XTMP2 # XTMP2 = W[-2] MY_ROR 17 {xDxC}
+ xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2))
+ MY_ROR 6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25)
+ xor g, y2 # y2 = CH = ((f^g)&e)^g
+ vpxor XTMP3, XTMP2, XTMP2
+ MY_ROR 2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22)
+ add y0, y2 # y2 = S1 + CH
+ add (3*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH
+ vpxor XTMP2, XTMP5, XTMP5 # XTMP5 = s1 {xDxC}
+ mov a, y0 # y0 = a
+ add y2, h # h = h + S1 + CH + k + w
+ mov a, y2 # y2 = a
+ vpshufb SHUF_DC00, XTMP5, XTMP5 # XTMP5 = s1 {DC00}
+ or c, y0 # y0 = a|c
+ add h, d # d = d + h + S1 + CH + k + w
+ and c, y2 # y2 = a&c
+ vpaddd XTMP0, XTMP5, X0 # X0 = {W[3], W[2], W[1], W[0]}
+ and b, y0 # y0 = (a|c)&b
+ add y1, h # h = h + S1 + CH + k + w + S0
+ or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c)
+ add y0, h # h = h + S1 + CH + k + w + S0 + MAJ
+ ROTATE_ARGS
+ rotate_Xs
+.endm
+
+## input is [rsp + _XFER + %1 * 4]
+.macro DO_ROUND round
+ mov e, y0 # y0 = e
+ MY_ROR (25-11), y0 # y0 = e >> (25-11)
+ mov a, y1 # y1 = a
+ xor e, y0 # y0 = e ^ (e >> (25-11))
+ MY_ROR (22-13), y1 # y1 = a >> (22-13)
+ mov f, y2 # y2 = f
+ xor a, y1 # y1 = a ^ (a >> (22-13)
+ MY_ROR (11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6))
+ xor g, y2 # y2 = f^g
+ xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6))
+ MY_ROR (13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2))
+ and e, y2 # y2 = (f^g)&e
+ xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2))
+ MY_ROR 6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25)
+ xor g, y2 # y2 = CH = ((f^g)&e)^g
+ add y0, y2 # y2 = S1 + CH
+ MY_ROR 2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22)
+ offset = \round * 4 + _XFER #
+ add offset(%rsp), y2 # y2 = k + w + S1 + CH
+ mov a, y0 # y0 = a
+ add y2, h # h = h + S1 + CH + k + w
+ mov a, y2 # y2 = a
+ or c, y0 # y0 = a|c
+ add h, d # d = d + h + S1 + CH + k + w
+ and c, y2 # y2 = a&c
+ and b, y0 # y0 = (a|c)&b
+ add y1, h # h = h + S1 + CH + k + w + S0
+ or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c)
+ add y0, h # h = h + S1 + CH + k + w + S0 + MAJ
+ ROTATE_ARGS
+.endm
+
+########################################################################
+## void sha256_transform_avx(state sha256_state *state, const u8 *data, int blocks)
+## arg 1 : pointer to state
+## arg 2 : pointer to input data
+## arg 3 : Num blocks
+########################################################################
+.text
+SYM_TYPED_FUNC_START(sha256_transform_avx)
+ pushq %rbx
+ pushq %r12
+ pushq %r13
+ pushq %r14
+ pushq %r15
+ pushq %rbp
+ movq %rsp, %rbp
+
+ subq $STACK_SIZE, %rsp # allocate stack space
+ and $~15, %rsp # align stack pointer
+
+ shl $6, NUM_BLKS # convert to bytes
+ jz .Ldone_hash
+ add INP, NUM_BLKS # pointer to end of data
+ mov NUM_BLKS, _INP_END(%rsp)
+
+ ## load initial digest
+ mov 4*0(CTX), a
+ mov 4*1(CTX), b
+ mov 4*2(CTX), c
+ mov 4*3(CTX), d
+ mov 4*4(CTX), e
+ mov 4*5(CTX), f
+ mov 4*6(CTX), g
+ mov 4*7(CTX), h
+
+ vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK
+ vmovdqa _SHUF_00BA(%rip), SHUF_00BA
+ vmovdqa _SHUF_DC00(%rip), SHUF_DC00
+.Lloop0:
+ lea K256(%rip), TBL
+
+ ## byte swap first 16 dwords
+ COPY_XMM_AND_BSWAP X0, 0*16(INP), BYTE_FLIP_MASK
+ COPY_XMM_AND_BSWAP X1, 1*16(INP), BYTE_FLIP_MASK
+ COPY_XMM_AND_BSWAP X2, 2*16(INP), BYTE_FLIP_MASK
+ COPY_XMM_AND_BSWAP X3, 3*16(INP), BYTE_FLIP_MASK
+
+ mov INP, _INP(%rsp)
+
+ ## schedule 48 input dwords, by doing 3 rounds of 16 each
+ mov $3, SRND
+.align 16
+.Lloop1:
+ vpaddd (TBL), X0, XFER
+ vmovdqa XFER, _XFER(%rsp)
+ FOUR_ROUNDS_AND_SCHED
+
+ vpaddd 1*16(TBL), X0, XFER
+ vmovdqa XFER, _XFER(%rsp)
+ FOUR_ROUNDS_AND_SCHED
+
+ vpaddd 2*16(TBL), X0, XFER
+ vmovdqa XFER, _XFER(%rsp)
+ FOUR_ROUNDS_AND_SCHED
+
+ vpaddd 3*16(TBL), X0, XFER
+ vmovdqa XFER, _XFER(%rsp)
+ add $4*16, TBL
+ FOUR_ROUNDS_AND_SCHED
+
+ sub $1, SRND
+ jne .Lloop1
+
+ mov $2, SRND
+.Lloop2:
+ vpaddd (TBL), X0, XFER
+ vmovdqa XFER, _XFER(%rsp)
+ DO_ROUND 0
+ DO_ROUND 1
+ DO_ROUND 2
+ DO_ROUND 3
+
+ vpaddd 1*16(TBL), X1, XFER
+ vmovdqa XFER, _XFER(%rsp)
+ add $2*16, TBL
+ DO_ROUND 0
+ DO_ROUND 1
+ DO_ROUND 2
+ DO_ROUND 3
+
+ vmovdqa X2, X0
+ vmovdqa X3, X1
+
+ sub $1, SRND
+ jne .Lloop2
+
+ addm (4*0)(CTX),a
+ addm (4*1)(CTX),b
+ addm (4*2)(CTX),c
+ addm (4*3)(CTX),d
+ addm (4*4)(CTX),e
+ addm (4*5)(CTX),f
+ addm (4*6)(CTX),g
+ addm (4*7)(CTX),h
+
+ mov _INP(%rsp), INP
+ add $64, INP
+ cmp _INP_END(%rsp), INP
+ jne .Lloop0
+
+.Ldone_hash:
+
+ mov %rbp, %rsp
+ popq %rbp
+ popq %r15
+ popq %r14
+ popq %r13
+ popq %r12
+ popq %rbx
+ RET
+SYM_FUNC_END(sha256_transform_avx)
+
+.section .rodata.cst256.K256, "aM", @progbits, 256
+.align 64
+K256:
+ .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
+ .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
+ .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
+ .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
+ .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
+ .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
+ .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
+ .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
+ .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
+ .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
+ .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
+ .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
+ .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
+ .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
+ .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
+ .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
+
+.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16
+.align 16
+PSHUFFLE_BYTE_FLIP_MASK:
+ .octa 0x0c0d0e0f08090a0b0405060700010203
+
+.section .rodata.cst16._SHUF_00BA, "aM", @progbits, 16
+.align 16
+# shuffle xBxA -> 00BA
+_SHUF_00BA:
+ .octa 0xFFFFFFFFFFFFFFFF0b0a090803020100
+
+.section .rodata.cst16._SHUF_DC00, "aM", @progbits, 16
+.align 16
+# shuffle xDxC -> DC00
+_SHUF_DC00:
+ .octa 0x0b0a090803020100FFFFFFFFFFFFFFFF
diff --git a/arch/x86/crypto/sha256-avx2-asm.S b/arch/x86/crypto/sha256-avx2-asm.S
new file mode 100644
index 000000000000..9918212faf91
--- /dev/null
+++ b/arch/x86/crypto/sha256-avx2-asm.S
@@ -0,0 +1,773 @@
+########################################################################
+# Implement fast SHA-256 with AVX2 instructions. (x86_64)
+#
+# Copyright (C) 2013 Intel Corporation.
+#
+# Authors:
+# James Guilford <james.guilford@intel.com>
+# Kirk Yap <kirk.s.yap@intel.com>
+# Tim Chen <tim.c.chen@linux.intel.com>
+#
+# This software is available to you under a choice of one of two
+# licenses. You may choose to be licensed under the terms of the GNU
+# General Public License (GPL) Version 2, available from the file
+# COPYING in the main directory of this source tree, or the
+# OpenIB.org BSD license below:
+#
+# Redistribution and use in source and binary forms, with or
+# without modification, are permitted provided that the following
+# conditions are met:
+#
+# - Redistributions of source code must retain the above
+# copyright notice, this list of conditions and the following
+# disclaimer.
+#
+# - Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials
+# provided with the distribution.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+########################################################################
+#
+# This code is described in an Intel White-Paper:
+# "Fast SHA-256 Implementations on Intel Architecture Processors"
+#
+# To find it, surf to http://www.intel.com/p/en_US/embedded
+# and search for that title.
+#
+########################################################################
+# This code schedules 2 blocks at a time, with 4 lanes per block
+########################################################################
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+## assume buffers not aligned
+#define VMOVDQ vmovdqu
+
+################################ Define Macros
+
+# addm [mem], reg
+# Add reg to mem using reg-mem add and store
+.macro addm p1 p2
+ add \p1, \p2
+ mov \p2, \p1
+.endm
+
+################################
+
+X0 = %ymm4
+X1 = %ymm5
+X2 = %ymm6
+X3 = %ymm7
+
+# XMM versions of above
+XWORD0 = %xmm4
+XWORD1 = %xmm5
+XWORD2 = %xmm6
+XWORD3 = %xmm7
+
+XTMP0 = %ymm0
+XTMP1 = %ymm1
+XTMP2 = %ymm2
+XTMP3 = %ymm3
+XTMP4 = %ymm8
+XFER = %ymm9
+XTMP5 = %ymm11
+
+SHUF_00BA = %ymm10 # shuffle xBxA -> 00BA
+SHUF_DC00 = %ymm12 # shuffle xDxC -> DC00
+BYTE_FLIP_MASK = %ymm13
+
+X_BYTE_FLIP_MASK = %xmm13 # XMM version of BYTE_FLIP_MASK
+
+NUM_BLKS = %rdx # 3rd arg
+INP = %rsi # 2nd arg
+CTX = %rdi # 1st arg
+c = %ecx
+d = %r8d
+e = %edx # clobbers NUM_BLKS
+y3 = %esi # clobbers INP
+
+SRND = CTX # SRND is same register as CTX
+
+a = %eax
+b = %ebx
+f = %r9d
+g = %r10d
+h = %r11d
+old_h = %r11d
+
+T1 = %r12d
+y0 = %r13d
+y1 = %r14d
+y2 = %r15d
+
+
+_XFER_SIZE = 2*64*4 # 2 blocks, 64 rounds, 4 bytes/round
+_XMM_SAVE_SIZE = 0
+_INP_END_SIZE = 8
+_INP_SIZE = 8
+_CTX_SIZE = 8
+
+_XFER = 0
+_XMM_SAVE = _XFER + _XFER_SIZE
+_INP_END = _XMM_SAVE + _XMM_SAVE_SIZE
+_INP = _INP_END + _INP_END_SIZE
+_CTX = _INP + _INP_SIZE
+STACK_SIZE = _CTX + _CTX_SIZE
+
+# rotate_Xs
+# Rotate values of symbols X0...X3
+.macro rotate_Xs
+ X_ = X0
+ X0 = X1
+ X1 = X2
+ X2 = X3
+ X3 = X_
+.endm
+
+# ROTATE_ARGS
+# Rotate values of symbols a...h
+.macro ROTATE_ARGS
+ old_h = h
+ TMP_ = h
+ h = g
+ g = f
+ f = e
+ e = d
+ d = c
+ c = b
+ b = a
+ a = TMP_
+.endm
+
+.macro FOUR_ROUNDS_AND_SCHED disp
+################################### RND N + 0 ############################
+
+ mov a, y3 # y3 = a # MAJA
+ rorx $25, e, y0 # y0 = e >> 25 # S1A
+ rorx $11, e, y1 # y1 = e >> 11 # S1B
+
+ addl \disp(%rsp, SRND), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+ vpalignr $4, X2, X3, XTMP0 # XTMP0 = W[-7]
+ mov f, y2 # y2 = f # CH
+ rorx $13, a, T1 # T1 = a >> 13 # S0B
+
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
+ xor g, y2 # y2 = f^g # CH
+ vpaddd X0, XTMP0, XTMP0 # XTMP0 = W[-7] + W[-16]# y1 = (e >> 6)# S1
+ rorx $6, e, y1 # y1 = (e >> 6) # S1
+
+ and e, y2 # y2 = (f^g)&e # CH
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
+ rorx $22, a, y1 # y1 = a >> 22 # S0A
+ add h, d # d = k + w + h + d # --
+
+ and b, y3 # y3 = (a|c)&b # MAJA
+ vpalignr $4, X0, X1, XTMP1 # XTMP1 = W[-15]
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
+ rorx $2, a, T1 # T1 = (a >> 2) # S0
+
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+ vpsrld $7, XTMP1, XTMP2
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
+ mov a, T1 # T1 = a # MAJB
+ and c, T1 # T1 = a&c # MAJB
+
+ add y0, y2 # y2 = S1 + CH # --
+ vpslld $(32-7), XTMP1, XTMP3
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+ vpor XTMP2, XTMP3, XTMP3 # XTMP3 = W[-15] ror 7
+
+ vpsrld $18, XTMP1, XTMP2
+ add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ add y3, h # h = t1 + S0 + MAJ # --
+
+
+ ROTATE_ARGS
+
+################################### RND N + 1 ############################
+
+ mov a, y3 # y3 = a # MAJA
+ rorx $25, e, y0 # y0 = e >> 25 # S1A
+ rorx $11, e, y1 # y1 = e >> 11 # S1B
+ offset = \disp + 1*4
+ addl offset(%rsp, SRND), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+
+ vpsrld $3, XTMP1, XTMP4 # XTMP4 = W[-15] >> 3
+ mov f, y2 # y2 = f # CH
+ rorx $13, a, T1 # T1 = a >> 13 # S0B
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
+ xor g, y2 # y2 = f^g # CH
+
+
+ rorx $6, e, y1 # y1 = (e >> 6) # S1
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
+ rorx $22, a, y1 # y1 = a >> 22 # S0A
+ and e, y2 # y2 = (f^g)&e # CH
+ add h, d # d = k + w + h + d # --
+
+ vpslld $(32-18), XTMP1, XTMP1
+ and b, y3 # y3 = (a|c)&b # MAJA
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
+
+ vpxor XTMP1, XTMP3, XTMP3
+ rorx $2, a, T1 # T1 = (a >> 2) # S0
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+
+ vpxor XTMP2, XTMP3, XTMP3 # XTMP3 = W[-15] ror 7 ^ W[-15] ror 18
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
+ mov a, T1 # T1 = a # MAJB
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+ vpxor XTMP4, XTMP3, XTMP1 # XTMP1 = s0
+ vpshufd $0b11111010, X3, XTMP2 # XTMP2 = W[-2] {BBAA}
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ vpaddd XTMP1, XTMP0, XTMP0 # XTMP0 = W[-16] + W[-7] + s0
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+ add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ add y3, h # h = t1 + S0 + MAJ # --
+
+ vpsrld $10, XTMP2, XTMP4 # XTMP4 = W[-2] >> 10 {BBAA}
+
+
+ ROTATE_ARGS
+
+################################### RND N + 2 ############################
+
+ mov a, y3 # y3 = a # MAJA
+ rorx $25, e, y0 # y0 = e >> 25 # S1A
+ offset = \disp + 2*4
+ addl offset(%rsp, SRND), h # h = k + w + h # --
+
+ vpsrlq $19, XTMP2, XTMP3 # XTMP3 = W[-2] ror 19 {xBxA}
+ rorx $11, e, y1 # y1 = e >> 11 # S1B
+ or c, y3 # y3 = a|c # MAJA
+ mov f, y2 # y2 = f # CH
+ xor g, y2 # y2 = f^g # CH
+
+ rorx $13, a, T1 # T1 = a >> 13 # S0B
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
+ vpsrlq $17, XTMP2, XTMP2 # XTMP2 = W[-2] ror 17 {xBxA}
+ and e, y2 # y2 = (f^g)&e # CH
+
+ rorx $6, e, y1 # y1 = (e >> 6) # S1
+ vpxor XTMP3, XTMP2, XTMP2
+ add h, d # d = k + w + h + d # --
+ and b, y3 # y3 = (a|c)&b # MAJA
+
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
+ rorx $22, a, y1 # y1 = a >> 22 # S0A
+ vpxor XTMP2, XTMP4, XTMP4 # XTMP4 = s1 {xBxA}
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+
+ vpshufb SHUF_00BA, XTMP4, XTMP4 # XTMP4 = s1 {00BA}
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
+ rorx $2, a ,T1 # T1 = (a >> 2) # S0
+ vpaddd XTMP4, XTMP0, XTMP0 # XTMP0 = {..., ..., W[1], W[0]}
+
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
+ mov a, T1 # T1 = a # MAJB
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+ vpshufd $0b01010000, XTMP0, XTMP2 # XTMP2 = W[-2] {DDCC}
+
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1,h # h = k + w + h + S0 # --
+ add y2,d # d = k + w + h + d + S1 + CH = d + t1 # --
+ add y2,h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+
+ add y3,h # h = t1 + S0 + MAJ # --
+
+
+ ROTATE_ARGS
+
+################################### RND N + 3 ############################
+
+ mov a, y3 # y3 = a # MAJA
+ rorx $25, e, y0 # y0 = e >> 25 # S1A
+ rorx $11, e, y1 # y1 = e >> 11 # S1B
+ offset = \disp + 3*4
+ addl offset(%rsp, SRND), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+
+ vpsrld $10, XTMP2, XTMP5 # XTMP5 = W[-2] >> 10 {DDCC}
+ mov f, y2 # y2 = f # CH
+ rorx $13, a, T1 # T1 = a >> 13 # S0B
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
+ xor g, y2 # y2 = f^g # CH
+
+
+ vpsrlq $19, XTMP2, XTMP3 # XTMP3 = W[-2] ror 19 {xDxC}
+ rorx $6, e, y1 # y1 = (e >> 6) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+ add h, d # d = k + w + h + d # --
+ and b, y3 # y3 = (a|c)&b # MAJA
+
+ vpsrlq $17, XTMP2, XTMP2 # XTMP2 = W[-2] ror 17 {xDxC}
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+
+ vpxor XTMP3, XTMP2, XTMP2
+ rorx $22, a, y1 # y1 = a >> 22 # S0A
+ add y0, y2 # y2 = S1 + CH # --
+
+ vpxor XTMP2, XTMP5, XTMP5 # XTMP5 = s1 {xDxC}
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+ rorx $2, a, T1 # T1 = (a >> 2) # S0
+ vpshufb SHUF_DC00, XTMP5, XTMP5 # XTMP5 = s1 {DC00}
+
+ vpaddd XTMP0, XTMP5, X0 # X0 = {W[3], W[2], W[1], W[0]}
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
+ mov a, T1 # T1 = a # MAJB
+ and c, T1 # T1 = a&c # MAJB
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+
+ add y1, h # h = k + w + h + S0 # --
+ add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ add y3, h # h = t1 + S0 + MAJ # --
+
+ ROTATE_ARGS
+ rotate_Xs
+.endm
+
+.macro DO_4ROUNDS disp
+################################### RND N + 0 ###########################
+
+ mov f, y2 # y2 = f # CH
+ rorx $25, e, y0 # y0 = e >> 25 # S1A
+ rorx $11, e, y1 # y1 = e >> 11 # S1B
+ xor g, y2 # y2 = f^g # CH
+
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
+ rorx $6, e, y1 # y1 = (e >> 6) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
+ rorx $13, a, T1 # T1 = a >> 13 # S0B
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+ rorx $22, a, y1 # y1 = a >> 22 # S0A
+ mov a, y3 # y3 = a # MAJA
+
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
+ rorx $2, a, T1 # T1 = (a >> 2) # S0
+ addl \disp(%rsp, SRND), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
+ mov a, T1 # T1 = a # MAJB
+ and b, y3 # y3 = (a|c)&b # MAJA
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+
+ add h, d # d = k + w + h + d # --
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+ ROTATE_ARGS
+
+################################### RND N + 1 ###########################
+
+ add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ mov f, y2 # y2 = f # CH
+ rorx $25, e, y0 # y0 = e >> 25 # S1A
+ rorx $11, e, y1 # y1 = e >> 11 # S1B
+ xor g, y2 # y2 = f^g # CH
+
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
+ rorx $6, e, y1 # y1 = (e >> 6) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+ add y3, old_h # h = t1 + S0 + MAJ # --
+
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
+ rorx $13, a, T1 # T1 = a >> 13 # S0B
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+ rorx $22, a, y1 # y1 = a >> 22 # S0A
+ mov a, y3 # y3 = a # MAJA
+
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
+ rorx $2, a, T1 # T1 = (a >> 2) # S0
+ offset = 4*1 + \disp
+ addl offset(%rsp, SRND), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
+ mov a, T1 # T1 = a # MAJB
+ and b, y3 # y3 = (a|c)&b # MAJA
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+
+ add h, d # d = k + w + h + d # --
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+ ROTATE_ARGS
+
+################################### RND N + 2 ##############################
+
+ add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ mov f, y2 # y2 = f # CH
+ rorx $25, e, y0 # y0 = e >> 25 # S1A
+ rorx $11, e, y1 # y1 = e >> 11 # S1B
+ xor g, y2 # y2 = f^g # CH
+
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
+ rorx $6, e, y1 # y1 = (e >> 6) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+ add y3, old_h # h = t1 + S0 + MAJ # --
+
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
+ rorx $13, a, T1 # T1 = a >> 13 # S0B
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+ rorx $22, a, y1 # y1 = a >> 22 # S0A
+ mov a, y3 # y3 = a # MAJA
+
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
+ rorx $2, a, T1 # T1 = (a >> 2) # S0
+ offset = 4*2 + \disp
+ addl offset(%rsp, SRND), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
+ mov a, T1 # T1 = a # MAJB
+ and b, y3 # y3 = (a|c)&b # MAJA
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+
+ add h, d # d = k + w + h + d # --
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+ ROTATE_ARGS
+
+################################### RND N + 3 ###########################
+
+ add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ mov f, y2 # y2 = f # CH
+ rorx $25, e, y0 # y0 = e >> 25 # S1A
+ rorx $11, e, y1 # y1 = e >> 11 # S1B
+ xor g, y2 # y2 = f^g # CH
+
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) # S1
+ rorx $6, e, y1 # y1 = (e >> 6) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+ add y3, old_h # h = t1 + S0 + MAJ # --
+
+ xor y1, y0 # y0 = (e>>25) ^ (e>>11) ^ (e>>6) # S1
+ rorx $13, a, T1 # T1 = a >> 13 # S0B
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+ rorx $22, a, y1 # y1 = a >> 22 # S0A
+ mov a, y3 # y3 = a # MAJA
+
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) # S0
+ rorx $2, a, T1 # T1 = (a >> 2) # S0
+ offset = 4*3 + \disp
+ addl offset(%rsp, SRND), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+ xor T1, y1 # y1 = (a>>22) ^ (a>>13) ^ (a>>2) # S0
+ mov a, T1 # T1 = a # MAJB
+ and b, y3 # y3 = (a|c)&b # MAJA
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+
+ add h, d # d = k + w + h + d # --
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+
+ add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+
+ add y3, h # h = t1 + S0 + MAJ # --
+
+ ROTATE_ARGS
+
+.endm
+
+########################################################################
+## void sha256_transform_rorx(struct sha256_state *state, const u8 *data, int blocks)
+## arg 1 : pointer to state
+## arg 2 : pointer to input data
+## arg 3 : Num blocks
+########################################################################
+.text
+SYM_TYPED_FUNC_START(sha256_transform_rorx)
+ pushq %rbx
+ pushq %r12
+ pushq %r13
+ pushq %r14
+ pushq %r15
+
+ push %rbp
+ mov %rsp, %rbp
+
+ subq $STACK_SIZE, %rsp
+ and $-32, %rsp # align rsp to 32 byte boundary
+
+ shl $6, NUM_BLKS # convert to bytes
+ jz .Ldone_hash
+ lea -64(INP, NUM_BLKS), NUM_BLKS # pointer to last block
+ mov NUM_BLKS, _INP_END(%rsp)
+
+ cmp NUM_BLKS, INP
+ je .Lonly_one_block
+
+ ## load initial digest
+ mov (CTX), a
+ mov 4*1(CTX), b
+ mov 4*2(CTX), c
+ mov 4*3(CTX), d
+ mov 4*4(CTX), e
+ mov 4*5(CTX), f
+ mov 4*6(CTX), g
+ mov 4*7(CTX), h
+
+ vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK
+ vmovdqa _SHUF_00BA(%rip), SHUF_00BA
+ vmovdqa _SHUF_DC00(%rip), SHUF_DC00
+
+ mov CTX, _CTX(%rsp)
+
+.Lloop0:
+ ## Load first 16 dwords from two blocks
+ VMOVDQ 0*32(INP),XTMP0
+ VMOVDQ 1*32(INP),XTMP1
+ VMOVDQ 2*32(INP),XTMP2
+ VMOVDQ 3*32(INP),XTMP3
+
+ ## byte swap data
+ vpshufb BYTE_FLIP_MASK, XTMP0, XTMP0
+ vpshufb BYTE_FLIP_MASK, XTMP1, XTMP1
+ vpshufb BYTE_FLIP_MASK, XTMP2, XTMP2
+ vpshufb BYTE_FLIP_MASK, XTMP3, XTMP3
+
+ ## transpose data into high/low halves
+ vperm2i128 $0x20, XTMP2, XTMP0, X0
+ vperm2i128 $0x31, XTMP2, XTMP0, X1
+ vperm2i128 $0x20, XTMP3, XTMP1, X2
+ vperm2i128 $0x31, XTMP3, XTMP1, X3
+
+.Llast_block_enter:
+ add $64, INP
+ mov INP, _INP(%rsp)
+
+ ## schedule 48 input dwords, by doing 3 rounds of 12 each
+ xor SRND, SRND
+
+.align 16
+.Lloop1:
+ leaq K256+0*32(%rip), INP ## reuse INP as scratch reg
+ vpaddd (INP, SRND), X0, XFER
+ vmovdqa XFER, 0*32+_XFER(%rsp, SRND)
+ FOUR_ROUNDS_AND_SCHED _XFER + 0*32
+
+ leaq K256+1*32(%rip), INP
+ vpaddd (INP, SRND), X0, XFER
+ vmovdqa XFER, 1*32+_XFER(%rsp, SRND)
+ FOUR_ROUNDS_AND_SCHED _XFER + 1*32
+
+ leaq K256+2*32(%rip), INP
+ vpaddd (INP, SRND), X0, XFER
+ vmovdqa XFER, 2*32+_XFER(%rsp, SRND)
+ FOUR_ROUNDS_AND_SCHED _XFER + 2*32
+
+ leaq K256+3*32(%rip), INP
+ vpaddd (INP, SRND), X0, XFER
+ vmovdqa XFER, 3*32+_XFER(%rsp, SRND)
+ FOUR_ROUNDS_AND_SCHED _XFER + 3*32
+
+ add $4*32, SRND
+ cmp $3*4*32, SRND
+ jb .Lloop1
+
+.Lloop2:
+ ## Do last 16 rounds with no scheduling
+ leaq K256+0*32(%rip), INP
+ vpaddd (INP, SRND), X0, XFER
+ vmovdqa XFER, 0*32+_XFER(%rsp, SRND)
+ DO_4ROUNDS _XFER + 0*32
+
+ leaq K256+1*32(%rip), INP
+ vpaddd (INP, SRND), X1, XFER
+ vmovdqa XFER, 1*32+_XFER(%rsp, SRND)
+ DO_4ROUNDS _XFER + 1*32
+ add $2*32, SRND
+
+ vmovdqa X2, X0
+ vmovdqa X3, X1
+
+ cmp $4*4*32, SRND
+ jb .Lloop2
+
+ mov _CTX(%rsp), CTX
+ mov _INP(%rsp), INP
+
+ addm (4*0)(CTX),a
+ addm (4*1)(CTX),b
+ addm (4*2)(CTX),c
+ addm (4*3)(CTX),d
+ addm (4*4)(CTX),e
+ addm (4*5)(CTX),f
+ addm (4*6)(CTX),g
+ addm (4*7)(CTX),h
+
+ cmp _INP_END(%rsp), INP
+ ja .Ldone_hash
+
+ #### Do second block using previously scheduled results
+ xor SRND, SRND
+.align 16
+.Lloop3:
+ DO_4ROUNDS _XFER + 0*32 + 16
+ DO_4ROUNDS _XFER + 1*32 + 16
+ add $2*32, SRND
+ cmp $4*4*32, SRND
+ jb .Lloop3
+
+ mov _CTX(%rsp), CTX
+ mov _INP(%rsp), INP
+ add $64, INP
+
+ addm (4*0)(CTX),a
+ addm (4*1)(CTX),b
+ addm (4*2)(CTX),c
+ addm (4*3)(CTX),d
+ addm (4*4)(CTX),e
+ addm (4*5)(CTX),f
+ addm (4*6)(CTX),g
+ addm (4*7)(CTX),h
+
+ cmp _INP_END(%rsp), INP
+ jb .Lloop0
+ ja .Ldone_hash
+
+.Ldo_last_block:
+ VMOVDQ 0*16(INP),XWORD0
+ VMOVDQ 1*16(INP),XWORD1
+ VMOVDQ 2*16(INP),XWORD2
+ VMOVDQ 3*16(INP),XWORD3
+
+ vpshufb X_BYTE_FLIP_MASK, XWORD0, XWORD0
+ vpshufb X_BYTE_FLIP_MASK, XWORD1, XWORD1
+ vpshufb X_BYTE_FLIP_MASK, XWORD2, XWORD2
+ vpshufb X_BYTE_FLIP_MASK, XWORD3, XWORD3
+
+ jmp .Llast_block_enter
+
+.Lonly_one_block:
+
+ ## load initial digest
+ mov (4*0)(CTX),a
+ mov (4*1)(CTX),b
+ mov (4*2)(CTX),c
+ mov (4*3)(CTX),d
+ mov (4*4)(CTX),e
+ mov (4*5)(CTX),f
+ mov (4*6)(CTX),g
+ mov (4*7)(CTX),h
+
+ vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK
+ vmovdqa _SHUF_00BA(%rip), SHUF_00BA
+ vmovdqa _SHUF_DC00(%rip), SHUF_DC00
+
+ mov CTX, _CTX(%rsp)
+ jmp .Ldo_last_block
+
+.Ldone_hash:
+
+ mov %rbp, %rsp
+ pop %rbp
+
+ popq %r15
+ popq %r14
+ popq %r13
+ popq %r12
+ popq %rbx
+ RET
+SYM_FUNC_END(sha256_transform_rorx)
+
+.section .rodata.cst512.K256, "aM", @progbits, 512
+.align 64
+K256:
+ .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
+ .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
+ .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
+ .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
+ .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
+ .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
+ .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
+ .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
+ .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
+ .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
+ .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
+ .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
+ .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
+ .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
+ .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
+ .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
+ .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
+ .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
+ .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
+ .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
+ .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
+ .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
+ .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
+ .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
+ .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
+ .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
+ .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
+ .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
+ .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
+ .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
+ .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
+ .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
+
+.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32
+.align 32
+PSHUFFLE_BYTE_FLIP_MASK:
+ .octa 0x0c0d0e0f08090a0b0405060700010203,0x0c0d0e0f08090a0b0405060700010203
+
+# shuffle xBxA -> 00BA
+.section .rodata.cst32._SHUF_00BA, "aM", @progbits, 32
+.align 32
+_SHUF_00BA:
+ .octa 0xFFFFFFFFFFFFFFFF0b0a090803020100,0xFFFFFFFFFFFFFFFF0b0a090803020100
+
+# shuffle xDxC -> DC00
+.section .rodata.cst32._SHUF_DC00, "aM", @progbits, 32
+.align 32
+_SHUF_DC00:
+ .octa 0x0b0a090803020100FFFFFFFFFFFFFFFF,0x0b0a090803020100FFFFFFFFFFFFFFFF
diff --git a/arch/x86/crypto/sha256-ssse3-asm.S b/arch/x86/crypto/sha256-ssse3-asm.S
new file mode 100644
index 000000000000..93264ee44543
--- /dev/null
+++ b/arch/x86/crypto/sha256-ssse3-asm.S
@@ -0,0 +1,513 @@
+########################################################################
+# Implement fast SHA-256 with SSSE3 instructions. (x86_64)
+#
+# Copyright (C) 2013 Intel Corporation.
+#
+# Authors:
+# James Guilford <james.guilford@intel.com>
+# Kirk Yap <kirk.s.yap@intel.com>
+# Tim Chen <tim.c.chen@linux.intel.com>
+#
+# This software is available to you under a choice of one of two
+# licenses. You may choose to be licensed under the terms of the GNU
+# General Public License (GPL) Version 2, available from the file
+# COPYING in the main directory of this source tree, or the
+# OpenIB.org BSD license below:
+#
+# Redistribution and use in source and binary forms, with or
+# without modification, are permitted provided that the following
+# conditions are met:
+#
+# - Redistributions of source code must retain the above
+# copyright notice, this list of conditions and the following
+# disclaimer.
+#
+# - Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials
+# provided with the distribution.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+########################################################################
+#
+# This code is described in an Intel White-Paper:
+# "Fast SHA-256 Implementations on Intel Architecture Processors"
+#
+# To find it, surf to http://www.intel.com/p/en_US/embedded
+# and search for that title.
+#
+########################################################################
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+## assume buffers not aligned
+#define MOVDQ movdqu
+
+################################ Define Macros
+
+# addm [mem], reg
+# Add reg to mem using reg-mem add and store
+.macro addm p1 p2
+ add \p1, \p2
+ mov \p2, \p1
+.endm
+
+################################
+
+# COPY_XMM_AND_BSWAP xmm, [mem], byte_flip_mask
+# Load xmm with mem and byte swap each dword
+.macro COPY_XMM_AND_BSWAP p1 p2 p3
+ MOVDQ \p2, \p1
+ pshufb \p3, \p1
+.endm
+
+################################
+
+X0 = %xmm4
+X1 = %xmm5
+X2 = %xmm6
+X3 = %xmm7
+
+XTMP0 = %xmm0
+XTMP1 = %xmm1
+XTMP2 = %xmm2
+XTMP3 = %xmm3
+XTMP4 = %xmm8
+XFER = %xmm9
+
+SHUF_00BA = %xmm10 # shuffle xBxA -> 00BA
+SHUF_DC00 = %xmm11 # shuffle xDxC -> DC00
+BYTE_FLIP_MASK = %xmm12
+
+NUM_BLKS = %rdx # 3rd arg
+INP = %rsi # 2nd arg
+CTX = %rdi # 1st arg
+
+SRND = %rsi # clobbers INP
+c = %ecx
+d = %r8d
+e = %edx
+TBL = %r12
+a = %eax
+b = %ebx
+
+f = %r9d
+g = %r10d
+h = %r11d
+
+y0 = %r13d
+y1 = %r14d
+y2 = %r15d
+
+
+
+_INP_END_SIZE = 8
+_INP_SIZE = 8
+_XFER_SIZE = 16
+_XMM_SAVE_SIZE = 0
+
+_INP_END = 0
+_INP = _INP_END + _INP_END_SIZE
+_XFER = _INP + _INP_SIZE
+_XMM_SAVE = _XFER + _XFER_SIZE
+STACK_SIZE = _XMM_SAVE + _XMM_SAVE_SIZE
+
+# rotate_Xs
+# Rotate values of symbols X0...X3
+.macro rotate_Xs
+X_ = X0
+X0 = X1
+X1 = X2
+X2 = X3
+X3 = X_
+.endm
+
+# ROTATE_ARGS
+# Rotate values of symbols a...h
+.macro ROTATE_ARGS
+TMP_ = h
+h = g
+g = f
+f = e
+e = d
+d = c
+c = b
+b = a
+a = TMP_
+.endm
+
+.macro FOUR_ROUNDS_AND_SCHED
+ ## compute s0 four at a time and s1 two at a time
+ ## compute W[-16] + W[-7] 4 at a time
+ movdqa X3, XTMP0
+ mov e, y0 # y0 = e
+ ror $(25-11), y0 # y0 = e >> (25-11)
+ mov a, y1 # y1 = a
+ palignr $4, X2, XTMP0 # XTMP0 = W[-7]
+ ror $(22-13), y1 # y1 = a >> (22-13)
+ xor e, y0 # y0 = e ^ (e >> (25-11))
+ mov f, y2 # y2 = f
+ ror $(11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6))
+ movdqa X1, XTMP1
+ xor a, y1 # y1 = a ^ (a >> (22-13)
+ xor g, y2 # y2 = f^g
+ paddd X0, XTMP0 # XTMP0 = W[-7] + W[-16]
+ xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6))
+ and e, y2 # y2 = (f^g)&e
+ ror $(13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2))
+ ## compute s0
+ palignr $4, X0, XTMP1 # XTMP1 = W[-15]
+ xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2))
+ ror $6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25)
+ xor g, y2 # y2 = CH = ((f^g)&e)^g
+ movdqa XTMP1, XTMP2 # XTMP2 = W[-15]
+ ror $2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22)
+ add y0, y2 # y2 = S1 + CH
+ add _XFER(%rsp) , y2 # y2 = k + w + S1 + CH
+ movdqa XTMP1, XTMP3 # XTMP3 = W[-15]
+ mov a, y0 # y0 = a
+ add y2, h # h = h + S1 + CH + k + w
+ mov a, y2 # y2 = a
+ pslld $(32-7), XTMP1 #
+ or c, y0 # y0 = a|c
+ add h, d # d = d + h + S1 + CH + k + w
+ and c, y2 # y2 = a&c
+ psrld $7, XTMP2 #
+ and b, y0 # y0 = (a|c)&b
+ add y1, h # h = h + S1 + CH + k + w + S0
+ por XTMP2, XTMP1 # XTMP1 = W[-15] ror 7
+ or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c)
+ add y0, h # h = h + S1 + CH + k + w + S0 + MAJ
+ #
+ ROTATE_ARGS #
+ movdqa XTMP3, XTMP2 # XTMP2 = W[-15]
+ mov e, y0 # y0 = e
+ mov a, y1 # y1 = a
+ movdqa XTMP3, XTMP4 # XTMP4 = W[-15]
+ ror $(25-11), y0 # y0 = e >> (25-11)
+ xor e, y0 # y0 = e ^ (e >> (25-11))
+ mov f, y2 # y2 = f
+ ror $(22-13), y1 # y1 = a >> (22-13)
+ pslld $(32-18), XTMP3 #
+ xor a, y1 # y1 = a ^ (a >> (22-13)
+ ror $(11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6))
+ xor g, y2 # y2 = f^g
+ psrld $18, XTMP2 #
+ ror $(13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2))
+ xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6))
+ and e, y2 # y2 = (f^g)&e
+ ror $6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25)
+ pxor XTMP3, XTMP1
+ xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2))
+ xor g, y2 # y2 = CH = ((f^g)&e)^g
+ psrld $3, XTMP4 # XTMP4 = W[-15] >> 3
+ add y0, y2 # y2 = S1 + CH
+ add (1*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH
+ ror $2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22)
+ pxor XTMP2, XTMP1 # XTMP1 = W[-15] ror 7 ^ W[-15] ror 18
+ mov a, y0 # y0 = a
+ add y2, h # h = h + S1 + CH + k + w
+ mov a, y2 # y2 = a
+ pxor XTMP4, XTMP1 # XTMP1 = s0
+ or c, y0 # y0 = a|c
+ add h, d # d = d + h + S1 + CH + k + w
+ and c, y2 # y2 = a&c
+ ## compute low s1
+ pshufd $0b11111010, X3, XTMP2 # XTMP2 = W[-2] {BBAA}
+ and b, y0 # y0 = (a|c)&b
+ add y1, h # h = h + S1 + CH + k + w + S0
+ paddd XTMP1, XTMP0 # XTMP0 = W[-16] + W[-7] + s0
+ or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c)
+ add y0, h # h = h + S1 + CH + k + w + S0 + MAJ
+
+ ROTATE_ARGS
+ movdqa XTMP2, XTMP3 # XTMP3 = W[-2] {BBAA}
+ mov e, y0 # y0 = e
+ mov a, y1 # y1 = a
+ ror $(25-11), y0 # y0 = e >> (25-11)
+ movdqa XTMP2, XTMP4 # XTMP4 = W[-2] {BBAA}
+ xor e, y0 # y0 = e ^ (e >> (25-11))
+ ror $(22-13), y1 # y1 = a >> (22-13)
+ mov f, y2 # y2 = f
+ xor a, y1 # y1 = a ^ (a >> (22-13)
+ ror $(11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6))
+ psrlq $17, XTMP2 # XTMP2 = W[-2] ror 17 {xBxA}
+ xor g, y2 # y2 = f^g
+ psrlq $19, XTMP3 # XTMP3 = W[-2] ror 19 {xBxA}
+ xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6))
+ and e, y2 # y2 = (f^g)&e
+ psrld $10, XTMP4 # XTMP4 = W[-2] >> 10 {BBAA}
+ ror $(13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2))
+ xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2))
+ xor g, y2 # y2 = CH = ((f^g)&e)^g
+ ror $6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25)
+ pxor XTMP3, XTMP2
+ add y0, y2 # y2 = S1 + CH
+ ror $2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22)
+ add (2*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH
+ pxor XTMP2, XTMP4 # XTMP4 = s1 {xBxA}
+ mov a, y0 # y0 = a
+ add y2, h # h = h + S1 + CH + k + w
+ mov a, y2 # y2 = a
+ pshufb SHUF_00BA, XTMP4 # XTMP4 = s1 {00BA}
+ or c, y0 # y0 = a|c
+ add h, d # d = d + h + S1 + CH + k + w
+ and c, y2 # y2 = a&c
+ paddd XTMP4, XTMP0 # XTMP0 = {..., ..., W[1], W[0]}
+ and b, y0 # y0 = (a|c)&b
+ add y1, h # h = h + S1 + CH + k + w + S0
+ ## compute high s1
+ pshufd $0b01010000, XTMP0, XTMP2 # XTMP2 = W[-2] {BBAA}
+ or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c)
+ add y0, h # h = h + S1 + CH + k + w + S0 + MAJ
+ #
+ ROTATE_ARGS #
+ movdqa XTMP2, XTMP3 # XTMP3 = W[-2] {DDCC}
+ mov e, y0 # y0 = e
+ ror $(25-11), y0 # y0 = e >> (25-11)
+ mov a, y1 # y1 = a
+ movdqa XTMP2, X0 # X0 = W[-2] {DDCC}
+ ror $(22-13), y1 # y1 = a >> (22-13)
+ xor e, y0 # y0 = e ^ (e >> (25-11))
+ mov f, y2 # y2 = f
+ ror $(11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6))
+ psrlq $17, XTMP2 # XTMP2 = W[-2] ror 17 {xDxC}
+ xor a, y1 # y1 = a ^ (a >> (22-13)
+ xor g, y2 # y2 = f^g
+ psrlq $19, XTMP3 # XTMP3 = W[-2] ror 19 {xDxC}
+ xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25
+ and e, y2 # y2 = (f^g)&e
+ ror $(13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2))
+ psrld $10, X0 # X0 = W[-2] >> 10 {DDCC}
+ xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22
+ ror $6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>2
+ xor g, y2 # y2 = CH = ((f^g)&e)^g
+ pxor XTMP3, XTMP2 #
+ ror $2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>2
+ add y0, y2 # y2 = S1 + CH
+ add (3*4 + _XFER)(%rsp), y2 # y2 = k + w + S1 + CH
+ pxor XTMP2, X0 # X0 = s1 {xDxC}
+ mov a, y0 # y0 = a
+ add y2, h # h = h + S1 + CH + k + w
+ mov a, y2 # y2 = a
+ pshufb SHUF_DC00, X0 # X0 = s1 {DC00}
+ or c, y0 # y0 = a|c
+ add h, d # d = d + h + S1 + CH + k + w
+ and c, y2 # y2 = a&c
+ paddd XTMP0, X0 # X0 = {W[3], W[2], W[1], W[0]}
+ and b, y0 # y0 = (a|c)&b
+ add y1, h # h = h + S1 + CH + k + w + S0
+ or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c)
+ add y0, h # h = h + S1 + CH + k + w + S0 + MAJ
+
+ ROTATE_ARGS
+ rotate_Xs
+.endm
+
+## input is [rsp + _XFER + %1 * 4]
+.macro DO_ROUND round
+ mov e, y0 # y0 = e
+ ror $(25-11), y0 # y0 = e >> (25-11)
+ mov a, y1 # y1 = a
+ xor e, y0 # y0 = e ^ (e >> (25-11))
+ ror $(22-13), y1 # y1 = a >> (22-13)
+ mov f, y2 # y2 = f
+ xor a, y1 # y1 = a ^ (a >> (22-13)
+ ror $(11-6), y0 # y0 = (e >> (11-6)) ^ (e >> (25-6))
+ xor g, y2 # y2 = f^g
+ xor e, y0 # y0 = e ^ (e >> (11-6)) ^ (e >> (25-6))
+ ror $(13-2), y1 # y1 = (a >> (13-2)) ^ (a >> (22-2))
+ and e, y2 # y2 = (f^g)&e
+ xor a, y1 # y1 = a ^ (a >> (13-2)) ^ (a >> (22-2))
+ ror $6, y0 # y0 = S1 = (e>>6) & (e>>11) ^ (e>>25)
+ xor g, y2 # y2 = CH = ((f^g)&e)^g
+ add y0, y2 # y2 = S1 + CH
+ ror $2, y1 # y1 = S0 = (a>>2) ^ (a>>13) ^ (a>>22)
+ offset = \round * 4 + _XFER
+ add offset(%rsp), y2 # y2 = k + w + S1 + CH
+ mov a, y0 # y0 = a
+ add y2, h # h = h + S1 + CH + k + w
+ mov a, y2 # y2 = a
+ or c, y0 # y0 = a|c
+ add h, d # d = d + h + S1 + CH + k + w
+ and c, y2 # y2 = a&c
+ and b, y0 # y0 = (a|c)&b
+ add y1, h # h = h + S1 + CH + k + w + S0
+ or y2, y0 # y0 = MAJ = (a|c)&b)|(a&c)
+ add y0, h # h = h + S1 + CH + k + w + S0 + MAJ
+ ROTATE_ARGS
+.endm
+
+########################################################################
+## void sha256_transform_ssse3(struct sha256_state *state, const u8 *data,
+## int blocks);
+## arg 1 : pointer to state
+## (struct sha256_state is assumed to begin with u32 state[8])
+## arg 2 : pointer to input data
+## arg 3 : Num blocks
+########################################################################
+.text
+SYM_TYPED_FUNC_START(sha256_transform_ssse3)
+ pushq %rbx
+ pushq %r12
+ pushq %r13
+ pushq %r14
+ pushq %r15
+ pushq %rbp
+ mov %rsp, %rbp
+
+ subq $STACK_SIZE, %rsp
+ and $~15, %rsp
+
+ shl $6, NUM_BLKS # convert to bytes
+ jz .Ldone_hash
+ add INP, NUM_BLKS
+ mov NUM_BLKS, _INP_END(%rsp) # pointer to end of data
+
+ ## load initial digest
+ mov 4*0(CTX), a
+ mov 4*1(CTX), b
+ mov 4*2(CTX), c
+ mov 4*3(CTX), d
+ mov 4*4(CTX), e
+ mov 4*5(CTX), f
+ mov 4*6(CTX), g
+ mov 4*7(CTX), h
+
+ movdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK
+ movdqa _SHUF_00BA(%rip), SHUF_00BA
+ movdqa _SHUF_DC00(%rip), SHUF_DC00
+
+.Lloop0:
+ lea K256(%rip), TBL
+
+ ## byte swap first 16 dwords
+ COPY_XMM_AND_BSWAP X0, 0*16(INP), BYTE_FLIP_MASK
+ COPY_XMM_AND_BSWAP X1, 1*16(INP), BYTE_FLIP_MASK
+ COPY_XMM_AND_BSWAP X2, 2*16(INP), BYTE_FLIP_MASK
+ COPY_XMM_AND_BSWAP X3, 3*16(INP), BYTE_FLIP_MASK
+
+ mov INP, _INP(%rsp)
+
+ ## schedule 48 input dwords, by doing 3 rounds of 16 each
+ mov $3, SRND
+.align 16
+.Lloop1:
+ movdqa (TBL), XFER
+ paddd X0, XFER
+ movdqa XFER, _XFER(%rsp)
+ FOUR_ROUNDS_AND_SCHED
+
+ movdqa 1*16(TBL), XFER
+ paddd X0, XFER
+ movdqa XFER, _XFER(%rsp)
+ FOUR_ROUNDS_AND_SCHED
+
+ movdqa 2*16(TBL), XFER
+ paddd X0, XFER
+ movdqa XFER, _XFER(%rsp)
+ FOUR_ROUNDS_AND_SCHED
+
+ movdqa 3*16(TBL), XFER
+ paddd X0, XFER
+ movdqa XFER, _XFER(%rsp)
+ add $4*16, TBL
+ FOUR_ROUNDS_AND_SCHED
+
+ sub $1, SRND
+ jne .Lloop1
+
+ mov $2, SRND
+.Lloop2:
+ paddd (TBL), X0
+ movdqa X0, _XFER(%rsp)
+ DO_ROUND 0
+ DO_ROUND 1
+ DO_ROUND 2
+ DO_ROUND 3
+ paddd 1*16(TBL), X1
+ movdqa X1, _XFER(%rsp)
+ add $2*16, TBL
+ DO_ROUND 0
+ DO_ROUND 1
+ DO_ROUND 2
+ DO_ROUND 3
+
+ movdqa X2, X0
+ movdqa X3, X1
+
+ sub $1, SRND
+ jne .Lloop2
+
+ addm (4*0)(CTX),a
+ addm (4*1)(CTX),b
+ addm (4*2)(CTX),c
+ addm (4*3)(CTX),d
+ addm (4*4)(CTX),e
+ addm (4*5)(CTX),f
+ addm (4*6)(CTX),g
+ addm (4*7)(CTX),h
+
+ mov _INP(%rsp), INP
+ add $64, INP
+ cmp _INP_END(%rsp), INP
+ jne .Lloop0
+
+.Ldone_hash:
+
+ mov %rbp, %rsp
+ popq %rbp
+ popq %r15
+ popq %r14
+ popq %r13
+ popq %r12
+ popq %rbx
+
+ RET
+SYM_FUNC_END(sha256_transform_ssse3)
+
+.section .rodata.cst256.K256, "aM", @progbits, 256
+.align 64
+K256:
+ .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
+ .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
+ .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
+ .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
+ .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
+ .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
+ .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
+ .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
+ .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
+ .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
+ .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
+ .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
+ .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
+ .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
+ .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
+ .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
+
+.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16
+.align 16
+PSHUFFLE_BYTE_FLIP_MASK:
+ .octa 0x0c0d0e0f08090a0b0405060700010203
+
+.section .rodata.cst16._SHUF_00BA, "aM", @progbits, 16
+.align 16
+# shuffle xBxA -> 00BA
+_SHUF_00BA:
+ .octa 0xFFFFFFFFFFFFFFFF0b0a090803020100
+
+.section .rodata.cst16._SHUF_DC00, "aM", @progbits, 16
+.align 16
+# shuffle xDxC -> DC00
+_SHUF_DC00:
+ .octa 0x0b0a090803020100FFFFFFFFFFFFFFFF
diff --git a/arch/x86/crypto/sha256_ni_asm.S b/arch/x86/crypto/sha256_ni_asm.S
new file mode 100644
index 000000000000..537b6dcd7ed8
--- /dev/null
+++ b/arch/x86/crypto/sha256_ni_asm.S
@@ -0,0 +1,355 @@
+/*
+ * Intel SHA Extensions optimized implementation of a SHA-256 update function
+ *
+ * This file is provided under a dual BSD/GPLv2 license. When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * Contact Information:
+ * Sean Gulley <sean.m.gulley@intel.com>
+ * Tim Chen <tim.c.chen@linux.intel.com>
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2015 Intel Corporation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+#define DIGEST_PTR %rdi /* 1st arg */
+#define DATA_PTR %rsi /* 2nd arg */
+#define NUM_BLKS %rdx /* 3rd arg */
+
+#define SHA256CONSTANTS %rax
+
+#define MSG %xmm0
+#define STATE0 %xmm1
+#define STATE1 %xmm2
+#define MSGTMP0 %xmm3
+#define MSGTMP1 %xmm4
+#define MSGTMP2 %xmm5
+#define MSGTMP3 %xmm6
+#define MSGTMP4 %xmm7
+
+#define SHUF_MASK %xmm8
+
+#define ABEF_SAVE %xmm9
+#define CDGH_SAVE %xmm10
+
+/*
+ * Intel SHA Extensions optimized implementation of a SHA-256 update function
+ *
+ * The function takes a pointer to the current hash values, a pointer to the
+ * input data, and a number of 64 byte blocks to process. Once all blocks have
+ * been processed, the digest pointer is updated with the resulting hash value.
+ * The function only processes complete blocks, there is no functionality to
+ * store partial blocks. All message padding and hash value initialization must
+ * be done outside the update function.
+ *
+ * The indented lines in the loop are instructions related to rounds processing.
+ * The non-indented lines are instructions related to the message schedule.
+ *
+ * void sha256_ni_transform(uint32_t *digest, const void *data,
+ uint32_t numBlocks);
+ * digest : pointer to digest
+ * data: pointer to input data
+ * numBlocks: Number of blocks to process
+ */
+
+.text
+SYM_TYPED_FUNC_START(sha256_ni_transform)
+
+ shl $6, NUM_BLKS /* convert to bytes */
+ jz .Ldone_hash
+ add DATA_PTR, NUM_BLKS /* pointer to end of data */
+
+ /*
+ * load initial hash values
+ * Need to reorder these appropriately
+ * DCBA, HGFE -> ABEF, CDGH
+ */
+ movdqu 0*16(DIGEST_PTR), STATE0
+ movdqu 1*16(DIGEST_PTR), STATE1
+
+ pshufd $0xB1, STATE0, STATE0 /* CDAB */
+ pshufd $0x1B, STATE1, STATE1 /* EFGH */
+ movdqa STATE0, MSGTMP4
+ palignr $8, STATE1, STATE0 /* ABEF */
+ pblendw $0xF0, MSGTMP4, STATE1 /* CDGH */
+
+ movdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), SHUF_MASK
+ lea K256(%rip), SHA256CONSTANTS
+
+.Lloop0:
+ /* Save hash values for addition after rounds */
+ movdqa STATE0, ABEF_SAVE
+ movdqa STATE1, CDGH_SAVE
+
+ /* Rounds 0-3 */
+ movdqu 0*16(DATA_PTR), MSG
+ pshufb SHUF_MASK, MSG
+ movdqa MSG, MSGTMP0
+ paddd 0*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+
+ /* Rounds 4-7 */
+ movdqu 1*16(DATA_PTR), MSG
+ pshufb SHUF_MASK, MSG
+ movdqa MSG, MSGTMP1
+ paddd 1*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP1, MSGTMP0
+
+ /* Rounds 8-11 */
+ movdqu 2*16(DATA_PTR), MSG
+ pshufb SHUF_MASK, MSG
+ movdqa MSG, MSGTMP2
+ paddd 2*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP2, MSGTMP1
+
+ /* Rounds 12-15 */
+ movdqu 3*16(DATA_PTR), MSG
+ pshufb SHUF_MASK, MSG
+ movdqa MSG, MSGTMP3
+ paddd 3*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP3, MSGTMP4
+ palignr $4, MSGTMP2, MSGTMP4
+ paddd MSGTMP4, MSGTMP0
+ sha256msg2 MSGTMP3, MSGTMP0
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP3, MSGTMP2
+
+ /* Rounds 16-19 */
+ movdqa MSGTMP0, MSG
+ paddd 4*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP0, MSGTMP4
+ palignr $4, MSGTMP3, MSGTMP4
+ paddd MSGTMP4, MSGTMP1
+ sha256msg2 MSGTMP0, MSGTMP1
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP0, MSGTMP3
+
+ /* Rounds 20-23 */
+ movdqa MSGTMP1, MSG
+ paddd 5*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP1, MSGTMP4
+ palignr $4, MSGTMP0, MSGTMP4
+ paddd MSGTMP4, MSGTMP2
+ sha256msg2 MSGTMP1, MSGTMP2
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP1, MSGTMP0
+
+ /* Rounds 24-27 */
+ movdqa MSGTMP2, MSG
+ paddd 6*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP2, MSGTMP4
+ palignr $4, MSGTMP1, MSGTMP4
+ paddd MSGTMP4, MSGTMP3
+ sha256msg2 MSGTMP2, MSGTMP3
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP2, MSGTMP1
+
+ /* Rounds 28-31 */
+ movdqa MSGTMP3, MSG
+ paddd 7*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP3, MSGTMP4
+ palignr $4, MSGTMP2, MSGTMP4
+ paddd MSGTMP4, MSGTMP0
+ sha256msg2 MSGTMP3, MSGTMP0
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP3, MSGTMP2
+
+ /* Rounds 32-35 */
+ movdqa MSGTMP0, MSG
+ paddd 8*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP0, MSGTMP4
+ palignr $4, MSGTMP3, MSGTMP4
+ paddd MSGTMP4, MSGTMP1
+ sha256msg2 MSGTMP0, MSGTMP1
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP0, MSGTMP3
+
+ /* Rounds 36-39 */
+ movdqa MSGTMP1, MSG
+ paddd 9*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP1, MSGTMP4
+ palignr $4, MSGTMP0, MSGTMP4
+ paddd MSGTMP4, MSGTMP2
+ sha256msg2 MSGTMP1, MSGTMP2
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP1, MSGTMP0
+
+ /* Rounds 40-43 */
+ movdqa MSGTMP2, MSG
+ paddd 10*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP2, MSGTMP4
+ palignr $4, MSGTMP1, MSGTMP4
+ paddd MSGTMP4, MSGTMP3
+ sha256msg2 MSGTMP2, MSGTMP3
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP2, MSGTMP1
+
+ /* Rounds 44-47 */
+ movdqa MSGTMP3, MSG
+ paddd 11*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP3, MSGTMP4
+ palignr $4, MSGTMP2, MSGTMP4
+ paddd MSGTMP4, MSGTMP0
+ sha256msg2 MSGTMP3, MSGTMP0
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP3, MSGTMP2
+
+ /* Rounds 48-51 */
+ movdqa MSGTMP0, MSG
+ paddd 12*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP0, MSGTMP4
+ palignr $4, MSGTMP3, MSGTMP4
+ paddd MSGTMP4, MSGTMP1
+ sha256msg2 MSGTMP0, MSGTMP1
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+ sha256msg1 MSGTMP0, MSGTMP3
+
+ /* Rounds 52-55 */
+ movdqa MSGTMP1, MSG
+ paddd 13*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP1, MSGTMP4
+ palignr $4, MSGTMP0, MSGTMP4
+ paddd MSGTMP4, MSGTMP2
+ sha256msg2 MSGTMP1, MSGTMP2
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+
+ /* Rounds 56-59 */
+ movdqa MSGTMP2, MSG
+ paddd 14*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ movdqa MSGTMP2, MSGTMP4
+ palignr $4, MSGTMP1, MSGTMP4
+ paddd MSGTMP4, MSGTMP3
+ sha256msg2 MSGTMP2, MSGTMP3
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+
+ /* Rounds 60-63 */
+ movdqa MSGTMP3, MSG
+ paddd 15*16(SHA256CONSTANTS), MSG
+ sha256rnds2 STATE0, STATE1
+ pshufd $0x0E, MSG, MSG
+ sha256rnds2 STATE1, STATE0
+
+ /* Add current hash values with previously saved */
+ paddd ABEF_SAVE, STATE0
+ paddd CDGH_SAVE, STATE1
+
+ /* Increment data pointer and loop if more to process */
+ add $64, DATA_PTR
+ cmp NUM_BLKS, DATA_PTR
+ jne .Lloop0
+
+ /* Write hash values back in the correct order */
+ pshufd $0x1B, STATE0, STATE0 /* FEBA */
+ pshufd $0xB1, STATE1, STATE1 /* DCHG */
+ movdqa STATE0, MSGTMP4
+ pblendw $0xF0, STATE1, STATE0 /* DCBA */
+ palignr $8, MSGTMP4, STATE1 /* HGFE */
+
+ movdqu STATE0, 0*16(DIGEST_PTR)
+ movdqu STATE1, 1*16(DIGEST_PTR)
+
+.Ldone_hash:
+
+ RET
+SYM_FUNC_END(sha256_ni_transform)
+
+.section .rodata.cst256.K256, "aM", @progbits, 256
+.align 64
+K256:
+ .long 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
+ .long 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
+ .long 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
+ .long 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
+ .long 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
+ .long 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
+ .long 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
+ .long 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
+ .long 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
+ .long 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
+ .long 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
+ .long 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
+ .long 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
+ .long 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
+ .long 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
+ .long 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
+
+.section .rodata.cst16.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 16
+.align 16
+PSHUFFLE_BYTE_FLIP_MASK:
+ .octa 0x0c0d0e0f08090a0b0405060700010203
diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c
new file mode 100644
index 000000000000..3a5f6be7dbba
--- /dev/null
+++ b/arch/x86/crypto/sha256_ssse3_glue.c
@@ -0,0 +1,420 @@
+/*
+ * Cryptographic API.
+ *
+ * Glue code for the SHA256 Secure Hash Algorithm assembler
+ * implementation using supplemental SSE3 / AVX / AVX2 instructions.
+ *
+ * This file is based on sha256_generic.c
+ *
+ * Copyright (C) 2013 Intel Corporation.
+ *
+ * Author:
+ * Tim Chen <tim.c.chen@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/types.h>
+#include <crypto/sha2.h>
+#include <crypto/sha256_base.h>
+#include <linux/string.h>
+#include <asm/simd.h>
+
+asmlinkage void sha256_transform_ssse3(struct sha256_state *state,
+ const u8 *data, int blocks);
+
+static int _sha256_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len, sha256_block_fn *sha256_xform)
+{
+ struct sha256_state *sctx = shash_desc_ctx(desc);
+
+ if (!crypto_simd_usable() ||
+ (sctx->count % SHA256_BLOCK_SIZE) + len < SHA256_BLOCK_SIZE)
+ return crypto_sha256_update(desc, data, len);
+
+ /*
+ * Make sure struct sha256_state begins directly with the SHA256
+ * 256-bit internal state, as this is what the asm functions expect.
+ */
+ BUILD_BUG_ON(offsetof(struct sha256_state, state) != 0);
+
+ kernel_fpu_begin();
+ sha256_base_do_update(desc, data, len, sha256_xform);
+ kernel_fpu_end();
+
+ return 0;
+}
+
+static int sha256_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out, sha256_block_fn *sha256_xform)
+{
+ if (!crypto_simd_usable())
+ return crypto_sha256_finup(desc, data, len, out);
+
+ kernel_fpu_begin();
+ if (len)
+ sha256_base_do_update(desc, data, len, sha256_xform);
+ sha256_base_do_finalize(desc, sha256_xform);
+ kernel_fpu_end();
+
+ return sha256_base_finish(desc, out);
+}
+
+static int sha256_ssse3_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return _sha256_update(desc, data, len, sha256_transform_ssse3);
+}
+
+static int sha256_ssse3_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha256_finup(desc, data, len, out, sha256_transform_ssse3);
+}
+
+/* Add padding and return the message digest. */
+static int sha256_ssse3_final(struct shash_desc *desc, u8 *out)
+{
+ return sha256_ssse3_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha256_ssse3_algs[] = { {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .init = sha256_base_init,
+ .update = sha256_ssse3_update,
+ .final = sha256_ssse3_final,
+ .finup = sha256_ssse3_finup,
+ .descsize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha256",
+ .cra_driver_name = "sha256-ssse3",
+ .cra_priority = 150,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+}, {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .init = sha224_base_init,
+ .update = sha256_ssse3_update,
+ .final = sha256_ssse3_final,
+ .finup = sha256_ssse3_finup,
+ .descsize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha224",
+ .cra_driver_name = "sha224-ssse3",
+ .cra_priority = 150,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+} };
+
+static int register_sha256_ssse3(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SSSE3))
+ return crypto_register_shashes(sha256_ssse3_algs,
+ ARRAY_SIZE(sha256_ssse3_algs));
+ return 0;
+}
+
+static void unregister_sha256_ssse3(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SSSE3))
+ crypto_unregister_shashes(sha256_ssse3_algs,
+ ARRAY_SIZE(sha256_ssse3_algs));
+}
+
+asmlinkage void sha256_transform_avx(struct sha256_state *state,
+ const u8 *data, int blocks);
+
+static int sha256_avx_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return _sha256_update(desc, data, len, sha256_transform_avx);
+}
+
+static int sha256_avx_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha256_finup(desc, data, len, out, sha256_transform_avx);
+}
+
+static int sha256_avx_final(struct shash_desc *desc, u8 *out)
+{
+ return sha256_avx_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha256_avx_algs[] = { {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .init = sha256_base_init,
+ .update = sha256_avx_update,
+ .final = sha256_avx_final,
+ .finup = sha256_avx_finup,
+ .descsize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha256",
+ .cra_driver_name = "sha256-avx",
+ .cra_priority = 160,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+}, {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .init = sha224_base_init,
+ .update = sha256_avx_update,
+ .final = sha256_avx_final,
+ .finup = sha256_avx_finup,
+ .descsize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha224",
+ .cra_driver_name = "sha224-avx",
+ .cra_priority = 160,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+} };
+
+static bool avx_usable(void)
+{
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
+ if (boot_cpu_has(X86_FEATURE_AVX))
+ pr_info("AVX detected but unusable.\n");
+ return false;
+ }
+
+ return true;
+}
+
+static int register_sha256_avx(void)
+{
+ if (avx_usable())
+ return crypto_register_shashes(sha256_avx_algs,
+ ARRAY_SIZE(sha256_avx_algs));
+ return 0;
+}
+
+static void unregister_sha256_avx(void)
+{
+ if (avx_usable())
+ crypto_unregister_shashes(sha256_avx_algs,
+ ARRAY_SIZE(sha256_avx_algs));
+}
+
+asmlinkage void sha256_transform_rorx(struct sha256_state *state,
+ const u8 *data, int blocks);
+
+static int sha256_avx2_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return _sha256_update(desc, data, len, sha256_transform_rorx);
+}
+
+static int sha256_avx2_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha256_finup(desc, data, len, out, sha256_transform_rorx);
+}
+
+static int sha256_avx2_final(struct shash_desc *desc, u8 *out)
+{
+ return sha256_avx2_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha256_avx2_algs[] = { {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .init = sha256_base_init,
+ .update = sha256_avx2_update,
+ .final = sha256_avx2_final,
+ .finup = sha256_avx2_finup,
+ .descsize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha256",
+ .cra_driver_name = "sha256-avx2",
+ .cra_priority = 170,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+}, {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .init = sha224_base_init,
+ .update = sha256_avx2_update,
+ .final = sha256_avx2_final,
+ .finup = sha256_avx2_finup,
+ .descsize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha224",
+ .cra_driver_name = "sha224-avx2",
+ .cra_priority = 170,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+} };
+
+static bool avx2_usable(void)
+{
+ if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2) &&
+ boot_cpu_has(X86_FEATURE_BMI2))
+ return true;
+
+ return false;
+}
+
+static int register_sha256_avx2(void)
+{
+ if (avx2_usable())
+ return crypto_register_shashes(sha256_avx2_algs,
+ ARRAY_SIZE(sha256_avx2_algs));
+ return 0;
+}
+
+static void unregister_sha256_avx2(void)
+{
+ if (avx2_usable())
+ crypto_unregister_shashes(sha256_avx2_algs,
+ ARRAY_SIZE(sha256_avx2_algs));
+}
+
+#ifdef CONFIG_AS_SHA256_NI
+asmlinkage void sha256_ni_transform(struct sha256_state *digest,
+ const u8 *data, int rounds);
+
+static int sha256_ni_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return _sha256_update(desc, data, len, sha256_ni_transform);
+}
+
+static int sha256_ni_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha256_finup(desc, data, len, out, sha256_ni_transform);
+}
+
+static int sha256_ni_final(struct shash_desc *desc, u8 *out)
+{
+ return sha256_ni_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha256_ni_algs[] = { {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .init = sha256_base_init,
+ .update = sha256_ni_update,
+ .final = sha256_ni_final,
+ .finup = sha256_ni_finup,
+ .descsize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha256",
+ .cra_driver_name = "sha256-ni",
+ .cra_priority = 250,
+ .cra_blocksize = SHA256_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+}, {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .init = sha224_base_init,
+ .update = sha256_ni_update,
+ .final = sha256_ni_final,
+ .finup = sha256_ni_finup,
+ .descsize = sizeof(struct sha256_state),
+ .base = {
+ .cra_name = "sha224",
+ .cra_driver_name = "sha224-ni",
+ .cra_priority = 250,
+ .cra_blocksize = SHA224_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+} };
+
+static int register_sha256_ni(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SHA_NI))
+ return crypto_register_shashes(sha256_ni_algs,
+ ARRAY_SIZE(sha256_ni_algs));
+ return 0;
+}
+
+static void unregister_sha256_ni(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SHA_NI))
+ crypto_unregister_shashes(sha256_ni_algs,
+ ARRAY_SIZE(sha256_ni_algs));
+}
+
+#else
+static inline int register_sha256_ni(void) { return 0; }
+static inline void unregister_sha256_ni(void) { }
+#endif
+
+static int __init sha256_ssse3_mod_init(void)
+{
+ if (register_sha256_ssse3())
+ goto fail;
+
+ if (register_sha256_avx()) {
+ unregister_sha256_ssse3();
+ goto fail;
+ }
+
+ if (register_sha256_avx2()) {
+ unregister_sha256_avx();
+ unregister_sha256_ssse3();
+ goto fail;
+ }
+
+ if (register_sha256_ni()) {
+ unregister_sha256_avx2();
+ unregister_sha256_avx();
+ unregister_sha256_ssse3();
+ goto fail;
+ }
+
+ return 0;
+fail:
+ return -ENODEV;
+}
+
+static void __exit sha256_ssse3_mod_fini(void)
+{
+ unregister_sha256_ni();
+ unregister_sha256_avx2();
+ unregister_sha256_avx();
+ unregister_sha256_ssse3();
+}
+
+module_init(sha256_ssse3_mod_init);
+module_exit(sha256_ssse3_mod_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm, Supplemental SSE3 accelerated");
+
+MODULE_ALIAS_CRYPTO("sha256");
+MODULE_ALIAS_CRYPTO("sha256-ssse3");
+MODULE_ALIAS_CRYPTO("sha256-avx");
+MODULE_ALIAS_CRYPTO("sha256-avx2");
+MODULE_ALIAS_CRYPTO("sha224");
+MODULE_ALIAS_CRYPTO("sha224-ssse3");
+MODULE_ALIAS_CRYPTO("sha224-avx");
+MODULE_ALIAS_CRYPTO("sha224-avx2");
+#ifdef CONFIG_AS_SHA256_NI
+MODULE_ALIAS_CRYPTO("sha256-ni");
+MODULE_ALIAS_CRYPTO("sha224-ni");
+#endif
diff --git a/arch/x86/crypto/sha512-avx-asm.S b/arch/x86/crypto/sha512-avx-asm.S
new file mode 100644
index 000000000000..d902b8ea0721
--- /dev/null
+++ b/arch/x86/crypto/sha512-avx-asm.S
@@ -0,0 +1,423 @@
+########################################################################
+# Implement fast SHA-512 with AVX instructions. (x86_64)
+#
+# Copyright (C) 2013 Intel Corporation.
+#
+# Authors:
+# James Guilford <james.guilford@intel.com>
+# Kirk Yap <kirk.s.yap@intel.com>
+# David Cote <david.m.cote@intel.com>
+# Tim Chen <tim.c.chen@linux.intel.com>
+#
+# This software is available to you under a choice of one of two
+# licenses. You may choose to be licensed under the terms of the GNU
+# General Public License (GPL) Version 2, available from the file
+# COPYING in the main directory of this source tree, or the
+# OpenIB.org BSD license below:
+#
+# Redistribution and use in source and binary forms, with or
+# without modification, are permitted provided that the following
+# conditions are met:
+#
+# - Redistributions of source code must retain the above
+# copyright notice, this list of conditions and the following
+# disclaimer.
+#
+# - Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials
+# provided with the distribution.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+########################################################################
+#
+# This code is described in an Intel White-Paper:
+# "Fast SHA-512 Implementations on Intel Architecture Processors"
+#
+# To find it, surf to http://www.intel.com/p/en_US/embedded
+# and search for that title.
+#
+########################################################################
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+.text
+
+# Virtual Registers
+# ARG1
+digest = %rdi
+# ARG2
+msg = %rsi
+# ARG3
+msglen = %rdx
+T1 = %rcx
+T2 = %r8
+a_64 = %r9
+b_64 = %r10
+c_64 = %r11
+d_64 = %r12
+e_64 = %r13
+f_64 = %r14
+g_64 = %r15
+h_64 = %rbx
+tmp0 = %rax
+
+# Local variables (stack frame)
+
+# Message Schedule
+W_SIZE = 80*8
+# W[t] + K[t] | W[t+1] + K[t+1]
+WK_SIZE = 2*8
+
+frame_W = 0
+frame_WK = frame_W + W_SIZE
+frame_size = frame_WK + WK_SIZE
+
+# Useful QWORD "arrays" for simpler memory references
+# MSG, DIGEST, K_t, W_t are arrays
+# WK_2(t) points to 1 of 2 qwords at frame.WK depdending on t being odd/even
+
+# Input message (arg1)
+#define MSG(i) 8*i(msg)
+
+# Output Digest (arg2)
+#define DIGEST(i) 8*i(digest)
+
+# SHA Constants (static mem)
+#define K_t(i) 8*i+K512(%rip)
+
+# Message Schedule (stack frame)
+#define W_t(i) 8*i+frame_W(%rsp)
+
+# W[t]+K[t] (stack frame)
+#define WK_2(i) 8*((i%2))+frame_WK(%rsp)
+
+.macro RotateState
+ # Rotate symbols a..h right
+ TMP = h_64
+ h_64 = g_64
+ g_64 = f_64
+ f_64 = e_64
+ e_64 = d_64
+ d_64 = c_64
+ c_64 = b_64
+ b_64 = a_64
+ a_64 = TMP
+.endm
+
+.macro RORQ p1 p2
+ # shld is faster than ror on Sandybridge
+ shld $(64-\p2), \p1, \p1
+.endm
+
+.macro SHA512_Round rnd
+ # Compute Round %%t
+ mov f_64, T1 # T1 = f
+ mov e_64, tmp0 # tmp = e
+ xor g_64, T1 # T1 = f ^ g
+ RORQ tmp0, 23 # 41 # tmp = e ror 23
+ and e_64, T1 # T1 = (f ^ g) & e
+ xor e_64, tmp0 # tmp = (e ror 23) ^ e
+ xor g_64, T1 # T1 = ((f ^ g) & e) ^ g = CH(e,f,g)
+ idx = \rnd
+ add WK_2(idx), T1 # W[t] + K[t] from message scheduler
+ RORQ tmp0, 4 # 18 # tmp = ((e ror 23) ^ e) ror 4
+ xor e_64, tmp0 # tmp = (((e ror 23) ^ e) ror 4) ^ e
+ mov a_64, T2 # T2 = a
+ add h_64, T1 # T1 = CH(e,f,g) + W[t] + K[t] + h
+ RORQ tmp0, 14 # 14 # tmp = ((((e ror23)^e)ror4)^e)ror14 = S1(e)
+ add tmp0, T1 # T1 = CH(e,f,g) + W[t] + K[t] + S1(e)
+ mov a_64, tmp0 # tmp = a
+ xor c_64, T2 # T2 = a ^ c
+ and c_64, tmp0 # tmp = a & c
+ and b_64, T2 # T2 = (a ^ c) & b
+ xor tmp0, T2 # T2 = ((a ^ c) & b) ^ (a & c) = Maj(a,b,c)
+ mov a_64, tmp0 # tmp = a
+ RORQ tmp0, 5 # 39 # tmp = a ror 5
+ xor a_64, tmp0 # tmp = (a ror 5) ^ a
+ add T1, d_64 # e(next_state) = d + T1
+ RORQ tmp0, 6 # 34 # tmp = ((a ror 5) ^ a) ror 6
+ xor a_64, tmp0 # tmp = (((a ror 5) ^ a) ror 6) ^ a
+ lea (T1, T2), h_64 # a(next_state) = T1 + Maj(a,b,c)
+ RORQ tmp0, 28 # 28 # tmp = ((((a ror5)^a)ror6)^a)ror28 = S0(a)
+ add tmp0, h_64 # a(next_state) = T1 + Maj(a,b,c) S0(a)
+ RotateState
+.endm
+
+.macro SHA512_2Sched_2Round_avx rnd
+ # Compute rounds t-2 and t-1
+ # Compute message schedule QWORDS t and t+1
+
+ # Two rounds are computed based on the values for K[t-2]+W[t-2] and
+ # K[t-1]+W[t-1] which were previously stored at WK_2 by the message
+ # scheduler.
+ # The two new schedule QWORDS are stored at [W_t(t)] and [W_t(t+1)].
+ # They are then added to their respective SHA512 constants at
+ # [K_t(t)] and [K_t(t+1)] and stored at dqword [WK_2(t)]
+ # For brievity, the comments following vectored instructions only refer to
+ # the first of a pair of QWORDS.
+ # Eg. XMM4=W[t-2] really means XMM4={W[t-2]|W[t-1]}
+ # The computation of the message schedule and the rounds are tightly
+ # stitched to take advantage of instruction-level parallelism.
+
+ idx = \rnd - 2
+ vmovdqa W_t(idx), %xmm4 # XMM4 = W[t-2]
+ idx = \rnd - 15
+ vmovdqu W_t(idx), %xmm5 # XMM5 = W[t-15]
+ mov f_64, T1
+ vpsrlq $61, %xmm4, %xmm0 # XMM0 = W[t-2]>>61
+ mov e_64, tmp0
+ vpsrlq $1, %xmm5, %xmm6 # XMM6 = W[t-15]>>1
+ xor g_64, T1
+ RORQ tmp0, 23 # 41
+ vpsrlq $19, %xmm4, %xmm1 # XMM1 = W[t-2]>>19
+ and e_64, T1
+ xor e_64, tmp0
+ vpxor %xmm1, %xmm0, %xmm0 # XMM0 = W[t-2]>>61 ^ W[t-2]>>19
+ xor g_64, T1
+ idx = \rnd
+ add WK_2(idx), T1#
+ vpsrlq $8, %xmm5, %xmm7 # XMM7 = W[t-15]>>8
+ RORQ tmp0, 4 # 18
+ vpsrlq $6, %xmm4, %xmm2 # XMM2 = W[t-2]>>6
+ xor e_64, tmp0
+ mov a_64, T2
+ add h_64, T1
+ vpxor %xmm7, %xmm6, %xmm6 # XMM6 = W[t-15]>>1 ^ W[t-15]>>8
+ RORQ tmp0, 14 # 14
+ add tmp0, T1
+ vpsrlq $7, %xmm5, %xmm8 # XMM8 = W[t-15]>>7
+ mov a_64, tmp0
+ xor c_64, T2
+ vpsllq $(64-61), %xmm4, %xmm3 # XMM3 = W[t-2]<<3
+ and c_64, tmp0
+ and b_64, T2
+ vpxor %xmm3, %xmm2, %xmm2 # XMM2 = W[t-2]>>6 ^ W[t-2]<<3
+ xor tmp0, T2
+ mov a_64, tmp0
+ vpsllq $(64-1), %xmm5, %xmm9 # XMM9 = W[t-15]<<63
+ RORQ tmp0, 5 # 39
+ vpxor %xmm9, %xmm8, %xmm8 # XMM8 = W[t-15]>>7 ^ W[t-15]<<63
+ xor a_64, tmp0
+ add T1, d_64
+ RORQ tmp0, 6 # 34
+ xor a_64, tmp0
+ vpxor %xmm8, %xmm6, %xmm6 # XMM6 = W[t-15]>>1 ^ W[t-15]>>8 ^
+ # W[t-15]>>7 ^ W[t-15]<<63
+ lea (T1, T2), h_64
+ RORQ tmp0, 28 # 28
+ vpsllq $(64-19), %xmm4, %xmm4 # XMM4 = W[t-2]<<25
+ add tmp0, h_64
+ RotateState
+ vpxor %xmm4, %xmm0, %xmm0 # XMM0 = W[t-2]>>61 ^ W[t-2]>>19 ^
+ # W[t-2]<<25
+ mov f_64, T1
+ vpxor %xmm2, %xmm0, %xmm0 # XMM0 = s1(W[t-2])
+ mov e_64, tmp0
+ xor g_64, T1
+ idx = \rnd - 16
+ vpaddq W_t(idx), %xmm0, %xmm0 # XMM0 = s1(W[t-2]) + W[t-16]
+ idx = \rnd - 7
+ vmovdqu W_t(idx), %xmm1 # XMM1 = W[t-7]
+ RORQ tmp0, 23 # 41
+ and e_64, T1
+ xor e_64, tmp0
+ xor g_64, T1
+ vpsllq $(64-8), %xmm5, %xmm5 # XMM5 = W[t-15]<<56
+ idx = \rnd + 1
+ add WK_2(idx), T1
+ vpxor %xmm5, %xmm6, %xmm6 # XMM6 = s0(W[t-15])
+ RORQ tmp0, 4 # 18
+ vpaddq %xmm6, %xmm0, %xmm0 # XMM0 = s1(W[t-2]) + W[t-16] + s0(W[t-15])
+ xor e_64, tmp0
+ vpaddq %xmm1, %xmm0, %xmm0 # XMM0 = W[t] = s1(W[t-2]) + W[t-7] +
+ # s0(W[t-15]) + W[t-16]
+ mov a_64, T2
+ add h_64, T1
+ RORQ tmp0, 14 # 14
+ add tmp0, T1
+ idx = \rnd
+ vmovdqa %xmm0, W_t(idx) # Store W[t]
+ vpaddq K_t(idx), %xmm0, %xmm0 # Compute W[t]+K[t]
+ vmovdqa %xmm0, WK_2(idx) # Store W[t]+K[t] for next rounds
+ mov a_64, tmp0
+ xor c_64, T2
+ and c_64, tmp0
+ and b_64, T2
+ xor tmp0, T2
+ mov a_64, tmp0
+ RORQ tmp0, 5 # 39
+ xor a_64, tmp0
+ add T1, d_64
+ RORQ tmp0, 6 # 34
+ xor a_64, tmp0
+ lea (T1, T2), h_64
+ RORQ tmp0, 28 # 28
+ add tmp0, h_64
+ RotateState
+.endm
+
+########################################################################
+# void sha512_transform_avx(sha512_state *state, const u8 *data, int blocks)
+# Purpose: Updates the SHA512 digest stored at "state" with the message
+# stored in "data".
+# The size of the message pointed to by "data" must be an integer multiple
+# of SHA512 message blocks.
+# "blocks" is the message length in SHA512 blocks
+########################################################################
+SYM_TYPED_FUNC_START(sha512_transform_avx)
+ test msglen, msglen
+ je .Lnowork
+
+ # Save GPRs
+ push %rbx
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+
+ # Allocate Stack Space
+ push %rbp
+ mov %rsp, %rbp
+ sub $frame_size, %rsp
+ and $~(0x20 - 1), %rsp
+
+.Lupdateblock:
+
+ # Load state variables
+ mov DIGEST(0), a_64
+ mov DIGEST(1), b_64
+ mov DIGEST(2), c_64
+ mov DIGEST(3), d_64
+ mov DIGEST(4), e_64
+ mov DIGEST(5), f_64
+ mov DIGEST(6), g_64
+ mov DIGEST(7), h_64
+
+ t = 0
+ .rept 80/2 + 1
+ # (80 rounds) / (2 rounds/iteration) + (1 iteration)
+ # +1 iteration because the scheduler leads hashing by 1 iteration
+ .if t < 2
+ # BSWAP 2 QWORDS
+ vmovdqa XMM_QWORD_BSWAP(%rip), %xmm1
+ vmovdqu MSG(t), %xmm0
+ vpshufb %xmm1, %xmm0, %xmm0 # BSWAP
+ vmovdqa %xmm0, W_t(t) # Store Scheduled Pair
+ vpaddq K_t(t), %xmm0, %xmm0 # Compute W[t]+K[t]
+ vmovdqa %xmm0, WK_2(t) # Store into WK for rounds
+ .elseif t < 16
+ # BSWAP 2 QWORDS# Compute 2 Rounds
+ vmovdqu MSG(t), %xmm0
+ vpshufb %xmm1, %xmm0, %xmm0 # BSWAP
+ SHA512_Round t-2 # Round t-2
+ vmovdqa %xmm0, W_t(t) # Store Scheduled Pair
+ vpaddq K_t(t), %xmm0, %xmm0 # Compute W[t]+K[t]
+ SHA512_Round t-1 # Round t-1
+ vmovdqa %xmm0, WK_2(t)# Store W[t]+K[t] into WK
+ .elseif t < 79
+ # Schedule 2 QWORDS# Compute 2 Rounds
+ SHA512_2Sched_2Round_avx t
+ .else
+ # Compute 2 Rounds
+ SHA512_Round t-2
+ SHA512_Round t-1
+ .endif
+ t = t+2
+ .endr
+
+ # Update digest
+ add a_64, DIGEST(0)
+ add b_64, DIGEST(1)
+ add c_64, DIGEST(2)
+ add d_64, DIGEST(3)
+ add e_64, DIGEST(4)
+ add f_64, DIGEST(5)
+ add g_64, DIGEST(6)
+ add h_64, DIGEST(7)
+
+ # Advance to next message block
+ add $16*8, msg
+ dec msglen
+ jnz .Lupdateblock
+
+ # Restore Stack Pointer
+ mov %rbp, %rsp
+ pop %rbp
+
+ # Restore GPRs
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbx
+
+.Lnowork:
+ RET
+SYM_FUNC_END(sha512_transform_avx)
+
+########################################################################
+### Binary Data
+
+.section .rodata.cst16.XMM_QWORD_BSWAP, "aM", @progbits, 16
+.align 16
+# Mask for byte-swapping a couple of qwords in an XMM register using (v)pshufb.
+XMM_QWORD_BSWAP:
+ .octa 0x08090a0b0c0d0e0f0001020304050607
+
+# Mergeable 640-byte rodata section. This allows linker to merge the table
+# with other, exactly the same 640-byte fragment of another rodata section
+# (if such section exists).
+.section .rodata.cst640.K512, "aM", @progbits, 640
+.align 64
+# K[t] used in SHA512 hashing
+K512:
+ .quad 0x428a2f98d728ae22,0x7137449123ef65cd
+ .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
+ .quad 0x3956c25bf348b538,0x59f111f1b605d019
+ .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
+ .quad 0xd807aa98a3030242,0x12835b0145706fbe
+ .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
+ .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
+ .quad 0x9bdc06a725c71235,0xc19bf174cf692694
+ .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
+ .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
+ .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
+ .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
+ .quad 0x983e5152ee66dfab,0xa831c66d2db43210
+ .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
+ .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
+ .quad 0x06ca6351e003826f,0x142929670a0e6e70
+ .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
+ .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
+ .quad 0x650a73548baf63de,0x766a0abb3c77b2a8
+ .quad 0x81c2c92e47edaee6,0x92722c851482353b
+ .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
+ .quad 0xc24b8b70d0f89791,0xc76c51a30654be30
+ .quad 0xd192e819d6ef5218,0xd69906245565a910
+ .quad 0xf40e35855771202a,0x106aa07032bbd1b8
+ .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
+ .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
+ .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
+ .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
+ .quad 0x748f82ee5defb2fc,0x78a5636f43172f60
+ .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
+ .quad 0x90befffa23631e28,0xa4506cebde82bde9
+ .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
+ .quad 0xca273eceea26619c,0xd186b8c721c0c207
+ .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
+ .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
+ .quad 0x113f9804bef90dae,0x1b710b35131c471b
+ .quad 0x28db77f523047d84,0x32caab7b40c72493
+ .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
+ .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
+ .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
diff --git a/arch/x86/crypto/sha512-avx2-asm.S b/arch/x86/crypto/sha512-avx2-asm.S
new file mode 100644
index 000000000000..f08496cd6870
--- /dev/null
+++ b/arch/x86/crypto/sha512-avx2-asm.S
@@ -0,0 +1,749 @@
+########################################################################
+# Implement fast SHA-512 with AVX2 instructions. (x86_64)
+#
+# Copyright (C) 2013 Intel Corporation.
+#
+# Authors:
+# James Guilford <james.guilford@intel.com>
+# Kirk Yap <kirk.s.yap@intel.com>
+# David Cote <david.m.cote@intel.com>
+# Tim Chen <tim.c.chen@linux.intel.com>
+#
+# This software is available to you under a choice of one of two
+# licenses. You may choose to be licensed under the terms of the GNU
+# General Public License (GPL) Version 2, available from the file
+# COPYING in the main directory of this source tree, or the
+# OpenIB.org BSD license below:
+#
+# Redistribution and use in source and binary forms, with or
+# without modification, are permitted provided that the following
+# conditions are met:
+#
+# - Redistributions of source code must retain the above
+# copyright notice, this list of conditions and the following
+# disclaimer.
+#
+# - Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials
+# provided with the distribution.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+########################################################################
+#
+# This code is described in an Intel White-Paper:
+# "Fast SHA-512 Implementations on Intel Architecture Processors"
+#
+# To find it, surf to http://www.intel.com/p/en_US/embedded
+# and search for that title.
+#
+########################################################################
+# This code schedules 1 blocks at a time, with 4 lanes per block
+########################################################################
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+.text
+
+# Virtual Registers
+Y_0 = %ymm4
+Y_1 = %ymm5
+Y_2 = %ymm6
+Y_3 = %ymm7
+
+YTMP0 = %ymm0
+YTMP1 = %ymm1
+YTMP2 = %ymm2
+YTMP3 = %ymm3
+YTMP4 = %ymm8
+XFER = YTMP0
+
+BYTE_FLIP_MASK = %ymm9
+
+# 1st arg is %rdi, which is saved to the stack and accessed later via %r12
+CTX1 = %rdi
+CTX2 = %r12
+# 2nd arg
+INP = %rsi
+# 3rd arg
+NUM_BLKS = %rdx
+
+c = %rcx
+d = %r8
+e = %rdx
+y3 = %rsi
+
+TBL = %rdi # clobbers CTX1
+
+a = %rax
+b = %rbx
+
+f = %r9
+g = %r10
+h = %r11
+old_h = %r11
+
+T1 = %r12 # clobbers CTX2
+y0 = %r13
+y1 = %r14
+y2 = %r15
+
+# Local variables (stack frame)
+XFER_SIZE = 4*8
+SRND_SIZE = 1*8
+INP_SIZE = 1*8
+INPEND_SIZE = 1*8
+CTX_SIZE = 1*8
+
+frame_XFER = 0
+frame_SRND = frame_XFER + XFER_SIZE
+frame_INP = frame_SRND + SRND_SIZE
+frame_INPEND = frame_INP + INP_SIZE
+frame_CTX = frame_INPEND + INPEND_SIZE
+frame_size = frame_CTX + CTX_SIZE
+
+## assume buffers not aligned
+#define VMOVDQ vmovdqu
+
+# addm [mem], reg
+# Add reg to mem using reg-mem add and store
+.macro addm p1 p2
+ add \p1, \p2
+ mov \p2, \p1
+.endm
+
+
+# COPY_YMM_AND_BSWAP ymm, [mem], byte_flip_mask
+# Load ymm with mem and byte swap each dword
+.macro COPY_YMM_AND_BSWAP p1 p2 p3
+ VMOVDQ \p2, \p1
+ vpshufb \p3, \p1, \p1
+.endm
+# rotate_Ys
+# Rotate values of symbols Y0...Y3
+.macro rotate_Ys
+ Y_ = Y_0
+ Y_0 = Y_1
+ Y_1 = Y_2
+ Y_2 = Y_3
+ Y_3 = Y_
+.endm
+
+# RotateState
+.macro RotateState
+ # Rotate symbols a..h right
+ old_h = h
+ TMP_ = h
+ h = g
+ g = f
+ f = e
+ e = d
+ d = c
+ c = b
+ b = a
+ a = TMP_
+.endm
+
+# macro MY_VPALIGNR YDST, YSRC1, YSRC2, RVAL
+# YDST = {YSRC1, YSRC2} >> RVAL*8
+.macro MY_VPALIGNR YDST YSRC1 YSRC2 RVAL
+ vperm2f128 $0x3, \YSRC2, \YSRC1, \YDST # YDST = {YS1_LO, YS2_HI}
+ vpalignr $\RVAL, \YSRC2, \YDST, \YDST # YDST = {YDS1, YS2} >> RVAL*8
+.endm
+
+.macro FOUR_ROUNDS_AND_SCHED
+################################### RND N + 0 #########################################
+
+ # Extract w[t-7]
+ MY_VPALIGNR YTMP0, Y_3, Y_2, 8 # YTMP0 = W[-7]
+ # Calculate w[t-16] + w[t-7]
+ vpaddq Y_0, YTMP0, YTMP0 # YTMP0 = W[-7] + W[-16]
+ # Extract w[t-15]
+ MY_VPALIGNR YTMP1, Y_1, Y_0, 8 # YTMP1 = W[-15]
+
+ # Calculate sigma0
+
+ # Calculate w[t-15] ror 1
+ vpsrlq $1, YTMP1, YTMP2
+ vpsllq $(64-1), YTMP1, YTMP3
+ vpor YTMP2, YTMP3, YTMP3 # YTMP3 = W[-15] ror 1
+ # Calculate w[t-15] shr 7
+ vpsrlq $7, YTMP1, YTMP4 # YTMP4 = W[-15] >> 7
+
+ mov a, y3 # y3 = a # MAJA
+ rorx $41, e, y0 # y0 = e >> 41 # S1A
+ rorx $18, e, y1 # y1 = e >> 18 # S1B
+ add frame_XFER(%rsp),h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+ mov f, y2 # y2 = f # CH
+ rorx $34, a, T1 # T1 = a >> 34 # S0B
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
+ xor g, y2 # y2 = f^g # CH
+ rorx $14, e, y1 # y1 = (e >> 14) # S1
+
+ and e, y2 # y2 = (f^g)&e # CH
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
+ rorx $39, a, y1 # y1 = a >> 39 # S0A
+ add h, d # d = k + w + h + d # --
+
+ and b, y3 # y3 = (a|c)&b # MAJA
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
+ rorx $28, a, T1 # T1 = (a >> 28) # S0
+
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
+ mov a, T1 # T1 = a # MAJB
+ and c, T1 # T1 = a&c # MAJB
+
+ add y0, y2 # y2 = S1 + CH # --
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+ add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ add y3, h # h = t1 + S0 + MAJ # --
+
+ RotateState
+
+################################### RND N + 1 #########################################
+
+ # Calculate w[t-15] ror 8
+ vpsrlq $8, YTMP1, YTMP2
+ vpsllq $(64-8), YTMP1, YTMP1
+ vpor YTMP2, YTMP1, YTMP1 # YTMP1 = W[-15] ror 8
+ # XOR the three components
+ vpxor YTMP4, YTMP3, YTMP3 # YTMP3 = W[-15] ror 1 ^ W[-15] >> 7
+ vpxor YTMP1, YTMP3, YTMP1 # YTMP1 = s0
+
+
+ # Add three components, w[t-16], w[t-7] and sigma0
+ vpaddq YTMP1, YTMP0, YTMP0 # YTMP0 = W[-16] + W[-7] + s0
+ # Move to appropriate lanes for calculating w[16] and w[17]
+ vperm2f128 $0x0, YTMP0, YTMP0, Y_0 # Y_0 = W[-16] + W[-7] + s0 {BABA}
+ # Move to appropriate lanes for calculating w[18] and w[19]
+ vpand MASK_YMM_LO(%rip), YTMP0, YTMP0 # YTMP0 = W[-16] + W[-7] + s0 {DC00}
+
+ # Calculate w[16] and w[17] in both 128 bit lanes
+
+ # Calculate sigma1 for w[16] and w[17] on both 128 bit lanes
+ vperm2f128 $0x11, Y_3, Y_3, YTMP2 # YTMP2 = W[-2] {BABA}
+ vpsrlq $6, YTMP2, YTMP4 # YTMP4 = W[-2] >> 6 {BABA}
+
+
+ mov a, y3 # y3 = a # MAJA
+ rorx $41, e, y0 # y0 = e >> 41 # S1A
+ rorx $18, e, y1 # y1 = e >> 18 # S1B
+ add 1*8+frame_XFER(%rsp), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+
+ mov f, y2 # y2 = f # CH
+ rorx $34, a, T1 # T1 = a >> 34 # S0B
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
+ xor g, y2 # y2 = f^g # CH
+
+
+ rorx $14, e, y1 # y1 = (e >> 14) # S1
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
+ rorx $39, a, y1 # y1 = a >> 39 # S0A
+ and e, y2 # y2 = (f^g)&e # CH
+ add h, d # d = k + w + h + d # --
+
+ and b, y3 # y3 = (a|c)&b # MAJA
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
+
+ rorx $28, a, T1 # T1 = (a >> 28) # S0
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
+ mov a, T1 # T1 = a # MAJB
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+ add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ add y3, h # h = t1 + S0 + MAJ # --
+
+ RotateState
+
+
+################################### RND N + 2 #########################################
+
+ vpsrlq $19, YTMP2, YTMP3 # YTMP3 = W[-2] >> 19 {BABA}
+ vpsllq $(64-19), YTMP2, YTMP1 # YTMP1 = W[-2] << 19 {BABA}
+ vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 19 {BABA}
+ vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = W[-2] ror 19 ^ W[-2] >> 6 {BABA}
+ vpsrlq $61, YTMP2, YTMP3 # YTMP3 = W[-2] >> 61 {BABA}
+ vpsllq $(64-61), YTMP2, YTMP1 # YTMP1 = W[-2] << 61 {BABA}
+ vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 61 {BABA}
+ vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = s1 = (W[-2] ror 19) ^
+ # (W[-2] ror 61) ^ (W[-2] >> 6) {BABA}
+
+ # Add sigma1 to the other compunents to get w[16] and w[17]
+ vpaddq YTMP4, Y_0, Y_0 # Y_0 = {W[1], W[0], W[1], W[0]}
+
+ # Calculate sigma1 for w[18] and w[19] for upper 128 bit lane
+ vpsrlq $6, Y_0, YTMP4 # YTMP4 = W[-2] >> 6 {DC--}
+
+ mov a, y3 # y3 = a # MAJA
+ rorx $41, e, y0 # y0 = e >> 41 # S1A
+ add 2*8+frame_XFER(%rsp), h # h = k + w + h # --
+
+ rorx $18, e, y1 # y1 = e >> 18 # S1B
+ or c, y3 # y3 = a|c # MAJA
+ mov f, y2 # y2 = f # CH
+ xor g, y2 # y2 = f^g # CH
+
+ rorx $34, a, T1 # T1 = a >> 34 # S0B
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+
+ rorx $14, e, y1 # y1 = (e >> 14) # S1
+ add h, d # d = k + w + h + d # --
+ and b, y3 # y3 = (a|c)&b # MAJA
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
+ rorx $39, a, y1 # y1 = a >> 39 # S0A
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
+ rorx $28, a, T1 # T1 = (a >> 28) # S0
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
+ mov a, T1 # T1 = a # MAJB
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+ add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+
+ add y3, h # h = t1 + S0 + MAJ # --
+
+ RotateState
+
+################################### RND N + 3 #########################################
+
+ vpsrlq $19, Y_0, YTMP3 # YTMP3 = W[-2] >> 19 {DC--}
+ vpsllq $(64-19), Y_0, YTMP1 # YTMP1 = W[-2] << 19 {DC--}
+ vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 19 {DC--}
+ vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = W[-2] ror 19 ^ W[-2] >> 6 {DC--}
+ vpsrlq $61, Y_0, YTMP3 # YTMP3 = W[-2] >> 61 {DC--}
+ vpsllq $(64-61), Y_0, YTMP1 # YTMP1 = W[-2] << 61 {DC--}
+ vpor YTMP1, YTMP3, YTMP3 # YTMP3 = W[-2] ror 61 {DC--}
+ vpxor YTMP3, YTMP4, YTMP4 # YTMP4 = s1 = (W[-2] ror 19) ^
+ # (W[-2] ror 61) ^ (W[-2] >> 6) {DC--}
+
+ # Add the sigma0 + w[t-7] + w[t-16] for w[18] and w[19]
+ # to newly calculated sigma1 to get w[18] and w[19]
+ vpaddq YTMP4, YTMP0, YTMP2 # YTMP2 = {W[3], W[2], --, --}
+
+ # Form w[19, w[18], w17], w[16]
+ vpblendd $0xF0, YTMP2, Y_0, Y_0 # Y_0 = {W[3], W[2], W[1], W[0]}
+
+ mov a, y3 # y3 = a # MAJA
+ rorx $41, e, y0 # y0 = e >> 41 # S1A
+ rorx $18, e, y1 # y1 = e >> 18 # S1B
+ add 3*8+frame_XFER(%rsp), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+
+ mov f, y2 # y2 = f # CH
+ rorx $34, a, T1 # T1 = a >> 34 # S0B
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
+ xor g, y2 # y2 = f^g # CH
+
+
+ rorx $14, e, y1 # y1 = (e >> 14) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+ add h, d # d = k + w + h + d # --
+ and b, y3 # y3 = (a|c)&b # MAJA
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+
+ rorx $39, a, y1 # y1 = a >> 39 # S0A
+ add y0, y2 # y2 = S1 + CH # --
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+ rorx $28, a, T1 # T1 = (a >> 28) # S0
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
+ mov a, T1 # T1 = a # MAJB
+ and c, T1 # T1 = a&c # MAJB
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+
+ add y1, h # h = k + w + h + S0 # --
+ add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ add y3, h # h = t1 + S0 + MAJ # --
+
+ RotateState
+
+ rotate_Ys
+.endm
+
+.macro DO_4ROUNDS
+
+################################### RND N + 0 #########################################
+
+ mov f, y2 # y2 = f # CH
+ rorx $41, e, y0 # y0 = e >> 41 # S1A
+ rorx $18, e, y1 # y1 = e >> 18 # S1B
+ xor g, y2 # y2 = f^g # CH
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
+ rorx $14, e, y1 # y1 = (e >> 14) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
+ rorx $34, a, T1 # T1 = a >> 34 # S0B
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+ rorx $39, a, y1 # y1 = a >> 39 # S0A
+ mov a, y3 # y3 = a # MAJA
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
+ rorx $28, a, T1 # T1 = (a >> 28) # S0
+ add frame_XFER(%rsp), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
+ mov a, T1 # T1 = a # MAJB
+ and b, y3 # y3 = (a|c)&b # MAJA
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+ add h, d # d = k + w + h + d # --
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+ RotateState
+
+################################### RND N + 1 #########################################
+
+ add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ mov f, y2 # y2 = f # CH
+ rorx $41, e, y0 # y0 = e >> 41 # S1A
+ rorx $18, e, y1 # y1 = e >> 18 # S1B
+ xor g, y2 # y2 = f^g # CH
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
+ rorx $14, e, y1 # y1 = (e >> 14) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+ add y3, old_h # h = t1 + S0 + MAJ # --
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
+ rorx $34, a, T1 # T1 = a >> 34 # S0B
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+ rorx $39, a, y1 # y1 = a >> 39 # S0A
+ mov a, y3 # y3 = a # MAJA
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
+ rorx $28, a, T1 # T1 = (a >> 28) # S0
+ add 8*1+frame_XFER(%rsp), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
+ mov a, T1 # T1 = a # MAJB
+ and b, y3 # y3 = (a|c)&b # MAJA
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+ add h, d # d = k + w + h + d # --
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+ RotateState
+
+################################### RND N + 2 #########################################
+
+ add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ mov f, y2 # y2 = f # CH
+ rorx $41, e, y0 # y0 = e >> 41 # S1A
+ rorx $18, e, y1 # y1 = e >> 18 # S1B
+ xor g, y2 # y2 = f^g # CH
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
+ rorx $14, e, y1 # y1 = (e >> 14) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+ add y3, old_h # h = t1 + S0 + MAJ # --
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
+ rorx $34, a, T1 # T1 = a >> 34 # S0B
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+ rorx $39, a, y1 # y1 = a >> 39 # S0A
+ mov a, y3 # y3 = a # MAJA
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
+ rorx $28, a, T1 # T1 = (a >> 28) # S0
+ add 8*2+frame_XFER(%rsp), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
+ mov a, T1 # T1 = a # MAJB
+ and b, y3 # y3 = (a|c)&b # MAJA
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+ add h, d # d = k + w + h + d # --
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+ RotateState
+
+################################### RND N + 3 #########################################
+
+ add y2, old_h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+ mov f, y2 # y2 = f # CH
+ rorx $41, e, y0 # y0 = e >> 41 # S1A
+ rorx $18, e, y1 # y1 = e >> 18 # S1B
+ xor g, y2 # y2 = f^g # CH
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) # S1
+ rorx $14, e, y1 # y1 = (e >> 14) # S1
+ and e, y2 # y2 = (f^g)&e # CH
+ add y3, old_h # h = t1 + S0 + MAJ # --
+
+ xor y1, y0 # y0 = (e>>41) ^ (e>>18) ^ (e>>14) # S1
+ rorx $34, a, T1 # T1 = a >> 34 # S0B
+ xor g, y2 # y2 = CH = ((f^g)&e)^g # CH
+ rorx $39, a, y1 # y1 = a >> 39 # S0A
+ mov a, y3 # y3 = a # MAJA
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) # S0
+ rorx $28, a, T1 # T1 = (a >> 28) # S0
+ add 8*3+frame_XFER(%rsp), h # h = k + w + h # --
+ or c, y3 # y3 = a|c # MAJA
+
+ xor T1, y1 # y1 = (a>>39) ^ (a>>34) ^ (a>>28) # S0
+ mov a, T1 # T1 = a # MAJB
+ and b, y3 # y3 = (a|c)&b # MAJA
+ and c, T1 # T1 = a&c # MAJB
+ add y0, y2 # y2 = S1 + CH # --
+
+
+ add h, d # d = k + w + h + d # --
+ or T1, y3 # y3 = MAJ = (a|c)&b)|(a&c) # MAJ
+ add y1, h # h = k + w + h + S0 # --
+
+ add y2, d # d = k + w + h + d + S1 + CH = d + t1 # --
+
+ add y2, h # h = k + w + h + S0 + S1 + CH = t1 + S0# --
+
+ add y3, h # h = t1 + S0 + MAJ # --
+
+ RotateState
+
+.endm
+
+########################################################################
+# void sha512_transform_rorx(sha512_state *state, const u8 *data, int blocks)
+# Purpose: Updates the SHA512 digest stored at "state" with the message
+# stored in "data".
+# The size of the message pointed to by "data" must be an integer multiple
+# of SHA512 message blocks.
+# "blocks" is the message length in SHA512 blocks
+########################################################################
+SYM_TYPED_FUNC_START(sha512_transform_rorx)
+ # Save GPRs
+ push %rbx
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+
+ # Allocate Stack Space
+ push %rbp
+ mov %rsp, %rbp
+ sub $frame_size, %rsp
+ and $~(0x20 - 1), %rsp
+
+ shl $7, NUM_BLKS # convert to bytes
+ jz .Ldone_hash
+ add INP, NUM_BLKS # pointer to end of data
+ mov NUM_BLKS, frame_INPEND(%rsp)
+
+ ## load initial digest
+ mov 8*0(CTX1), a
+ mov 8*1(CTX1), b
+ mov 8*2(CTX1), c
+ mov 8*3(CTX1), d
+ mov 8*4(CTX1), e
+ mov 8*5(CTX1), f
+ mov 8*6(CTX1), g
+ mov 8*7(CTX1), h
+
+ # save %rdi (CTX) before it gets clobbered
+ mov %rdi, frame_CTX(%rsp)
+
+ vmovdqa PSHUFFLE_BYTE_FLIP_MASK(%rip), BYTE_FLIP_MASK
+
+.Lloop0:
+ lea K512(%rip), TBL
+
+ ## byte swap first 16 dwords
+ COPY_YMM_AND_BSWAP Y_0, (INP), BYTE_FLIP_MASK
+ COPY_YMM_AND_BSWAP Y_1, 1*32(INP), BYTE_FLIP_MASK
+ COPY_YMM_AND_BSWAP Y_2, 2*32(INP), BYTE_FLIP_MASK
+ COPY_YMM_AND_BSWAP Y_3, 3*32(INP), BYTE_FLIP_MASK
+
+ mov INP, frame_INP(%rsp)
+
+ ## schedule 64 input dwords, by doing 12 rounds of 4 each
+ movq $4, frame_SRND(%rsp)
+
+.align 16
+.Lloop1:
+ vpaddq (TBL), Y_0, XFER
+ vmovdqa XFER, frame_XFER(%rsp)
+ FOUR_ROUNDS_AND_SCHED
+
+ vpaddq 1*32(TBL), Y_0, XFER
+ vmovdqa XFER, frame_XFER(%rsp)
+ FOUR_ROUNDS_AND_SCHED
+
+ vpaddq 2*32(TBL), Y_0, XFER
+ vmovdqa XFER, frame_XFER(%rsp)
+ FOUR_ROUNDS_AND_SCHED
+
+ vpaddq 3*32(TBL), Y_0, XFER
+ vmovdqa XFER, frame_XFER(%rsp)
+ add $(4*32), TBL
+ FOUR_ROUNDS_AND_SCHED
+
+ subq $1, frame_SRND(%rsp)
+ jne .Lloop1
+
+ movq $2, frame_SRND(%rsp)
+.Lloop2:
+ vpaddq (TBL), Y_0, XFER
+ vmovdqa XFER, frame_XFER(%rsp)
+ DO_4ROUNDS
+ vpaddq 1*32(TBL), Y_1, XFER
+ vmovdqa XFER, frame_XFER(%rsp)
+ add $(2*32), TBL
+ DO_4ROUNDS
+
+ vmovdqa Y_2, Y_0
+ vmovdqa Y_3, Y_1
+
+ subq $1, frame_SRND(%rsp)
+ jne .Lloop2
+
+ mov frame_CTX(%rsp), CTX2
+ addm 8*0(CTX2), a
+ addm 8*1(CTX2), b
+ addm 8*2(CTX2), c
+ addm 8*3(CTX2), d
+ addm 8*4(CTX2), e
+ addm 8*5(CTX2), f
+ addm 8*6(CTX2), g
+ addm 8*7(CTX2), h
+
+ mov frame_INP(%rsp), INP
+ add $128, INP
+ cmp frame_INPEND(%rsp), INP
+ jne .Lloop0
+
+.Ldone_hash:
+
+ # Restore Stack Pointer
+ mov %rbp, %rsp
+ pop %rbp
+
+ # Restore GPRs
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbx
+
+ RET
+SYM_FUNC_END(sha512_transform_rorx)
+
+########################################################################
+### Binary Data
+
+
+# Mergeable 640-byte rodata section. This allows linker to merge the table
+# with other, exactly the same 640-byte fragment of another rodata section
+# (if such section exists).
+.section .rodata.cst640.K512, "aM", @progbits, 640
+.align 64
+# K[t] used in SHA512 hashing
+K512:
+ .quad 0x428a2f98d728ae22,0x7137449123ef65cd
+ .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
+ .quad 0x3956c25bf348b538,0x59f111f1b605d019
+ .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
+ .quad 0xd807aa98a3030242,0x12835b0145706fbe
+ .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
+ .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
+ .quad 0x9bdc06a725c71235,0xc19bf174cf692694
+ .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
+ .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
+ .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
+ .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
+ .quad 0x983e5152ee66dfab,0xa831c66d2db43210
+ .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
+ .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
+ .quad 0x06ca6351e003826f,0x142929670a0e6e70
+ .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
+ .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
+ .quad 0x650a73548baf63de,0x766a0abb3c77b2a8
+ .quad 0x81c2c92e47edaee6,0x92722c851482353b
+ .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
+ .quad 0xc24b8b70d0f89791,0xc76c51a30654be30
+ .quad 0xd192e819d6ef5218,0xd69906245565a910
+ .quad 0xf40e35855771202a,0x106aa07032bbd1b8
+ .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
+ .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
+ .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
+ .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
+ .quad 0x748f82ee5defb2fc,0x78a5636f43172f60
+ .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
+ .quad 0x90befffa23631e28,0xa4506cebde82bde9
+ .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
+ .quad 0xca273eceea26619c,0xd186b8c721c0c207
+ .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
+ .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
+ .quad 0x113f9804bef90dae,0x1b710b35131c471b
+ .quad 0x28db77f523047d84,0x32caab7b40c72493
+ .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
+ .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
+ .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
+
+.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32
+.align 32
+# Mask for byte-swapping a couple of qwords in an XMM register using (v)pshufb.
+PSHUFFLE_BYTE_FLIP_MASK:
+ .octa 0x08090a0b0c0d0e0f0001020304050607
+ .octa 0x18191a1b1c1d1e1f1011121314151617
+
+.section .rodata.cst32.MASK_YMM_LO, "aM", @progbits, 32
+.align 32
+MASK_YMM_LO:
+ .octa 0x00000000000000000000000000000000
+ .octa 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
diff --git a/arch/x86/crypto/sha512-ssse3-asm.S b/arch/x86/crypto/sha512-ssse3-asm.S
new file mode 100644
index 000000000000..65be30156816
--- /dev/null
+++ b/arch/x86/crypto/sha512-ssse3-asm.S
@@ -0,0 +1,425 @@
+########################################################################
+# Implement fast SHA-512 with SSSE3 instructions. (x86_64)
+#
+# Copyright (C) 2013 Intel Corporation.
+#
+# Authors:
+# James Guilford <james.guilford@intel.com>
+# Kirk Yap <kirk.s.yap@intel.com>
+# David Cote <david.m.cote@intel.com>
+# Tim Chen <tim.c.chen@linux.intel.com>
+#
+# This software is available to you under a choice of one of two
+# licenses. You may choose to be licensed under the terms of the GNU
+# General Public License (GPL) Version 2, available from the file
+# COPYING in the main directory of this source tree, or the
+# OpenIB.org BSD license below:
+#
+# Redistribution and use in source and binary forms, with or
+# without modification, are permitted provided that the following
+# conditions are met:
+#
+# - Redistributions of source code must retain the above
+# copyright notice, this list of conditions and the following
+# disclaimer.
+#
+# - Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials
+# provided with the distribution.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+########################################################################
+#
+# This code is described in an Intel White-Paper:
+# "Fast SHA-512 Implementations on Intel Architecture Processors"
+#
+# To find it, surf to http://www.intel.com/p/en_US/embedded
+# and search for that title.
+#
+########################################################################
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+
+.text
+
+# Virtual Registers
+# ARG1
+digest = %rdi
+# ARG2
+msg = %rsi
+# ARG3
+msglen = %rdx
+T1 = %rcx
+T2 = %r8
+a_64 = %r9
+b_64 = %r10
+c_64 = %r11
+d_64 = %r12
+e_64 = %r13
+f_64 = %r14
+g_64 = %r15
+h_64 = %rbx
+tmp0 = %rax
+
+# Local variables (stack frame)
+
+W_SIZE = 80*8
+WK_SIZE = 2*8
+
+frame_W = 0
+frame_WK = frame_W + W_SIZE
+frame_size = frame_WK + WK_SIZE
+
+# Useful QWORD "arrays" for simpler memory references
+# MSG, DIGEST, K_t, W_t are arrays
+# WK_2(t) points to 1 of 2 qwords at frame.WK depdending on t being odd/even
+
+# Input message (arg1)
+#define MSG(i) 8*i(msg)
+
+# Output Digest (arg2)
+#define DIGEST(i) 8*i(digest)
+
+# SHA Constants (static mem)
+#define K_t(i) 8*i+K512(%rip)
+
+# Message Schedule (stack frame)
+#define W_t(i) 8*i+frame_W(%rsp)
+
+# W[t]+K[t] (stack frame)
+#define WK_2(i) 8*((i%2))+frame_WK(%rsp)
+
+.macro RotateState
+ # Rotate symbols a..h right
+ TMP = h_64
+ h_64 = g_64
+ g_64 = f_64
+ f_64 = e_64
+ e_64 = d_64
+ d_64 = c_64
+ c_64 = b_64
+ b_64 = a_64
+ a_64 = TMP
+.endm
+
+.macro SHA512_Round rnd
+
+ # Compute Round %%t
+ mov f_64, T1 # T1 = f
+ mov e_64, tmp0 # tmp = e
+ xor g_64, T1 # T1 = f ^ g
+ ror $23, tmp0 # 41 # tmp = e ror 23
+ and e_64, T1 # T1 = (f ^ g) & e
+ xor e_64, tmp0 # tmp = (e ror 23) ^ e
+ xor g_64, T1 # T1 = ((f ^ g) & e) ^ g = CH(e,f,g)
+ idx = \rnd
+ add WK_2(idx), T1 # W[t] + K[t] from message scheduler
+ ror $4, tmp0 # 18 # tmp = ((e ror 23) ^ e) ror 4
+ xor e_64, tmp0 # tmp = (((e ror 23) ^ e) ror 4) ^ e
+ mov a_64, T2 # T2 = a
+ add h_64, T1 # T1 = CH(e,f,g) + W[t] + K[t] + h
+ ror $14, tmp0 # 14 # tmp = ((((e ror23)^e)ror4)^e)ror14 = S1(e)
+ add tmp0, T1 # T1 = CH(e,f,g) + W[t] + K[t] + S1(e)
+ mov a_64, tmp0 # tmp = a
+ xor c_64, T2 # T2 = a ^ c
+ and c_64, tmp0 # tmp = a & c
+ and b_64, T2 # T2 = (a ^ c) & b
+ xor tmp0, T2 # T2 = ((a ^ c) & b) ^ (a & c) = Maj(a,b,c)
+ mov a_64, tmp0 # tmp = a
+ ror $5, tmp0 # 39 # tmp = a ror 5
+ xor a_64, tmp0 # tmp = (a ror 5) ^ a
+ add T1, d_64 # e(next_state) = d + T1
+ ror $6, tmp0 # 34 # tmp = ((a ror 5) ^ a) ror 6
+ xor a_64, tmp0 # tmp = (((a ror 5) ^ a) ror 6) ^ a
+ lea (T1, T2), h_64 # a(next_state) = T1 + Maj(a,b,c)
+ ror $28, tmp0 # 28 # tmp = ((((a ror5)^a)ror6)^a)ror28 = S0(a)
+ add tmp0, h_64 # a(next_state) = T1 + Maj(a,b,c) S0(a)
+ RotateState
+.endm
+
+.macro SHA512_2Sched_2Round_sse rnd
+
+ # Compute rounds t-2 and t-1
+ # Compute message schedule QWORDS t and t+1
+
+ # Two rounds are computed based on the values for K[t-2]+W[t-2] and
+ # K[t-1]+W[t-1] which were previously stored at WK_2 by the message
+ # scheduler.
+ # The two new schedule QWORDS are stored at [W_t(%%t)] and [W_t(%%t+1)].
+ # They are then added to their respective SHA512 constants at
+ # [K_t(%%t)] and [K_t(%%t+1)] and stored at dqword [WK_2(%%t)]
+ # For brievity, the comments following vectored instructions only refer to
+ # the first of a pair of QWORDS.
+ # Eg. XMM2=W[t-2] really means XMM2={W[t-2]|W[t-1]}
+ # The computation of the message schedule and the rounds are tightly
+ # stitched to take advantage of instruction-level parallelism.
+ # For clarity, integer instructions (for the rounds calculation) are indented
+ # by one tab. Vectored instructions (for the message scheduler) are indented
+ # by two tabs.
+
+ mov f_64, T1
+ idx = \rnd -2
+ movdqa W_t(idx), %xmm2 # XMM2 = W[t-2]
+ xor g_64, T1
+ and e_64, T1
+ movdqa %xmm2, %xmm0 # XMM0 = W[t-2]
+ xor g_64, T1
+ idx = \rnd
+ add WK_2(idx), T1
+ idx = \rnd - 15
+ movdqu W_t(idx), %xmm5 # XMM5 = W[t-15]
+ mov e_64, tmp0
+ ror $23, tmp0 # 41
+ movdqa %xmm5, %xmm3 # XMM3 = W[t-15]
+ xor e_64, tmp0
+ ror $4, tmp0 # 18
+ psrlq $61-19, %xmm0 # XMM0 = W[t-2] >> 42
+ xor e_64, tmp0
+ ror $14, tmp0 # 14
+ psrlq $(8-7), %xmm3 # XMM3 = W[t-15] >> 1
+ add tmp0, T1
+ add h_64, T1
+ pxor %xmm2, %xmm0 # XMM0 = (W[t-2] >> 42) ^ W[t-2]
+ mov a_64, T2
+ xor c_64, T2
+ pxor %xmm5, %xmm3 # XMM3 = (W[t-15] >> 1) ^ W[t-15]
+ and b_64, T2
+ mov a_64, tmp0
+ psrlq $(19-6), %xmm0 # XMM0 = ((W[t-2]>>42)^W[t-2])>>13
+ and c_64, tmp0
+ xor tmp0, T2
+ psrlq $(7-1), %xmm3 # XMM3 = ((W[t-15]>>1)^W[t-15])>>6
+ mov a_64, tmp0
+ ror $5, tmp0 # 39
+ pxor %xmm2, %xmm0 # XMM0 = (((W[t-2]>>42)^W[t-2])>>13)^W[t-2]
+ xor a_64, tmp0
+ ror $6, tmp0 # 34
+ pxor %xmm5, %xmm3 # XMM3 = (((W[t-15]>>1)^W[t-15])>>6)^W[t-15]
+ xor a_64, tmp0
+ ror $28, tmp0 # 28
+ psrlq $6, %xmm0 # XMM0 = ((((W[t-2]>>42)^W[t-2])>>13)^W[t-2])>>6
+ add tmp0, T2
+ add T1, d_64
+ psrlq $1, %xmm3 # XMM3 = (((W[t-15]>>1)^W[t-15])>>6)^W[t-15]>>1
+ lea (T1, T2), h_64
+ RotateState
+ movdqa %xmm2, %xmm1 # XMM1 = W[t-2]
+ mov f_64, T1
+ xor g_64, T1
+ movdqa %xmm5, %xmm4 # XMM4 = W[t-15]
+ and e_64, T1
+ xor g_64, T1
+ psllq $(64-19)-(64-61) , %xmm1 # XMM1 = W[t-2] << 42
+ idx = \rnd + 1
+ add WK_2(idx), T1
+ mov e_64, tmp0
+ psllq $(64-1)-(64-8), %xmm4 # XMM4 = W[t-15] << 7
+ ror $23, tmp0 # 41
+ xor e_64, tmp0
+ pxor %xmm2, %xmm1 # XMM1 = (W[t-2] << 42)^W[t-2]
+ ror $4, tmp0 # 18
+ xor e_64, tmp0
+ pxor %xmm5, %xmm4 # XMM4 = (W[t-15]<<7)^W[t-15]
+ ror $14, tmp0 # 14
+ add tmp0, T1
+ psllq $(64-61), %xmm1 # XMM1 = ((W[t-2] << 42)^W[t-2])<<3
+ add h_64, T1
+ mov a_64, T2
+ psllq $(64-8), %xmm4 # XMM4 = ((W[t-15]<<7)^W[t-15])<<56
+ xor c_64, T2
+ and b_64, T2
+ pxor %xmm1, %xmm0 # XMM0 = s1(W[t-2])
+ mov a_64, tmp0
+ and c_64, tmp0
+ idx = \rnd - 7
+ movdqu W_t(idx), %xmm1 # XMM1 = W[t-7]
+ xor tmp0, T2
+ pxor %xmm4, %xmm3 # XMM3 = s0(W[t-15])
+ mov a_64, tmp0
+ paddq %xmm3, %xmm0 # XMM0 = s1(W[t-2]) + s0(W[t-15])
+ ror $5, tmp0 # 39
+ idx =\rnd-16
+ paddq W_t(idx), %xmm0 # XMM0 = s1(W[t-2]) + s0(W[t-15]) + W[t-16]
+ xor a_64, tmp0
+ paddq %xmm1, %xmm0 # XMM0 = s1(W[t-2]) + W[t-7] + s0(W[t-15]) + W[t-16]
+ ror $6, tmp0 # 34
+ movdqa %xmm0, W_t(\rnd) # Store scheduled qwords
+ xor a_64, tmp0
+ paddq K_t(\rnd), %xmm0 # Compute W[t]+K[t]
+ ror $28, tmp0 # 28
+ idx = \rnd
+ movdqa %xmm0, WK_2(idx) # Store W[t]+K[t] for next rounds
+ add tmp0, T2
+ add T1, d_64
+ lea (T1, T2), h_64
+ RotateState
+.endm
+
+########################################################################
+## void sha512_transform_ssse3(struct sha512_state *state, const u8 *data,
+## int blocks);
+# (struct sha512_state is assumed to begin with u64 state[8])
+# Purpose: Updates the SHA512 digest stored at "state" with the message
+# stored in "data".
+# The size of the message pointed to by "data" must be an integer multiple
+# of SHA512 message blocks.
+# "blocks" is the message length in SHA512 blocks.
+########################################################################
+SYM_TYPED_FUNC_START(sha512_transform_ssse3)
+
+ test msglen, msglen
+ je .Lnowork
+
+ # Save GPRs
+ push %rbx
+ push %r12
+ push %r13
+ push %r14
+ push %r15
+
+ # Allocate Stack Space
+ push %rbp
+ mov %rsp, %rbp
+ sub $frame_size, %rsp
+ and $~(0x20 - 1), %rsp
+
+.Lupdateblock:
+
+# Load state variables
+ mov DIGEST(0), a_64
+ mov DIGEST(1), b_64
+ mov DIGEST(2), c_64
+ mov DIGEST(3), d_64
+ mov DIGEST(4), e_64
+ mov DIGEST(5), f_64
+ mov DIGEST(6), g_64
+ mov DIGEST(7), h_64
+
+ t = 0
+ .rept 80/2 + 1
+ # (80 rounds) / (2 rounds/iteration) + (1 iteration)
+ # +1 iteration because the scheduler leads hashing by 1 iteration
+ .if t < 2
+ # BSWAP 2 QWORDS
+ movdqa XMM_QWORD_BSWAP(%rip), %xmm1
+ movdqu MSG(t), %xmm0
+ pshufb %xmm1, %xmm0 # BSWAP
+ movdqa %xmm0, W_t(t) # Store Scheduled Pair
+ paddq K_t(t), %xmm0 # Compute W[t]+K[t]
+ movdqa %xmm0, WK_2(t) # Store into WK for rounds
+ .elseif t < 16
+ # BSWAP 2 QWORDS# Compute 2 Rounds
+ movdqu MSG(t), %xmm0
+ pshufb %xmm1, %xmm0 # BSWAP
+ SHA512_Round t-2 # Round t-2
+ movdqa %xmm0, W_t(t) # Store Scheduled Pair
+ paddq K_t(t), %xmm0 # Compute W[t]+K[t]
+ SHA512_Round t-1 # Round t-1
+ movdqa %xmm0, WK_2(t) # Store W[t]+K[t] into WK
+ .elseif t < 79
+ # Schedule 2 QWORDS# Compute 2 Rounds
+ SHA512_2Sched_2Round_sse t
+ .else
+ # Compute 2 Rounds
+ SHA512_Round t-2
+ SHA512_Round t-1
+ .endif
+ t = t+2
+ .endr
+
+ # Update digest
+ add a_64, DIGEST(0)
+ add b_64, DIGEST(1)
+ add c_64, DIGEST(2)
+ add d_64, DIGEST(3)
+ add e_64, DIGEST(4)
+ add f_64, DIGEST(5)
+ add g_64, DIGEST(6)
+ add h_64, DIGEST(7)
+
+ # Advance to next message block
+ add $16*8, msg
+ dec msglen
+ jnz .Lupdateblock
+
+ # Restore Stack Pointer
+ mov %rbp, %rsp
+ pop %rbp
+
+ # Restore GPRs
+ pop %r15
+ pop %r14
+ pop %r13
+ pop %r12
+ pop %rbx
+
+.Lnowork:
+ RET
+SYM_FUNC_END(sha512_transform_ssse3)
+
+########################################################################
+### Binary Data
+
+.section .rodata.cst16.XMM_QWORD_BSWAP, "aM", @progbits, 16
+.align 16
+# Mask for byte-swapping a couple of qwords in an XMM register using (v)pshufb.
+XMM_QWORD_BSWAP:
+ .octa 0x08090a0b0c0d0e0f0001020304050607
+
+# Mergeable 640-byte rodata section. This allows linker to merge the table
+# with other, exactly the same 640-byte fragment of another rodata section
+# (if such section exists).
+.section .rodata.cst640.K512, "aM", @progbits, 640
+.align 64
+# K[t] used in SHA512 hashing
+K512:
+ .quad 0x428a2f98d728ae22,0x7137449123ef65cd
+ .quad 0xb5c0fbcfec4d3b2f,0xe9b5dba58189dbbc
+ .quad 0x3956c25bf348b538,0x59f111f1b605d019
+ .quad 0x923f82a4af194f9b,0xab1c5ed5da6d8118
+ .quad 0xd807aa98a3030242,0x12835b0145706fbe
+ .quad 0x243185be4ee4b28c,0x550c7dc3d5ffb4e2
+ .quad 0x72be5d74f27b896f,0x80deb1fe3b1696b1
+ .quad 0x9bdc06a725c71235,0xc19bf174cf692694
+ .quad 0xe49b69c19ef14ad2,0xefbe4786384f25e3
+ .quad 0x0fc19dc68b8cd5b5,0x240ca1cc77ac9c65
+ .quad 0x2de92c6f592b0275,0x4a7484aa6ea6e483
+ .quad 0x5cb0a9dcbd41fbd4,0x76f988da831153b5
+ .quad 0x983e5152ee66dfab,0xa831c66d2db43210
+ .quad 0xb00327c898fb213f,0xbf597fc7beef0ee4
+ .quad 0xc6e00bf33da88fc2,0xd5a79147930aa725
+ .quad 0x06ca6351e003826f,0x142929670a0e6e70
+ .quad 0x27b70a8546d22ffc,0x2e1b21385c26c926
+ .quad 0x4d2c6dfc5ac42aed,0x53380d139d95b3df
+ .quad 0x650a73548baf63de,0x766a0abb3c77b2a8
+ .quad 0x81c2c92e47edaee6,0x92722c851482353b
+ .quad 0xa2bfe8a14cf10364,0xa81a664bbc423001
+ .quad 0xc24b8b70d0f89791,0xc76c51a30654be30
+ .quad 0xd192e819d6ef5218,0xd69906245565a910
+ .quad 0xf40e35855771202a,0x106aa07032bbd1b8
+ .quad 0x19a4c116b8d2d0c8,0x1e376c085141ab53
+ .quad 0x2748774cdf8eeb99,0x34b0bcb5e19b48a8
+ .quad 0x391c0cb3c5c95a63,0x4ed8aa4ae3418acb
+ .quad 0x5b9cca4f7763e373,0x682e6ff3d6b2b8a3
+ .quad 0x748f82ee5defb2fc,0x78a5636f43172f60
+ .quad 0x84c87814a1f0ab72,0x8cc702081a6439ec
+ .quad 0x90befffa23631e28,0xa4506cebde82bde9
+ .quad 0xbef9a3f7b2c67915,0xc67178f2e372532b
+ .quad 0xca273eceea26619c,0xd186b8c721c0c207
+ .quad 0xeada7dd6cde0eb1e,0xf57d4f7fee6ed178
+ .quad 0x06f067aa72176fba,0x0a637dc5a2c898a6
+ .quad 0x113f9804bef90dae,0x1b710b35131c471b
+ .quad 0x28db77f523047d84,0x32caab7b40c72493
+ .quad 0x3c9ebe0a15c9bebc,0x431d67c49c100d4c
+ .quad 0x4cc5d4becb3e42b6,0x597f299cfc657e2a
+ .quad 0x5fcb6fab3ad6faec,0x6c44198c4a475817
diff --git a/arch/x86/crypto/sha512_ssse3_glue.c b/arch/x86/crypto/sha512_ssse3_glue.c
new file mode 100644
index 000000000000..6d3b85e53d0e
--- /dev/null
+++ b/arch/x86/crypto/sha512_ssse3_glue.c
@@ -0,0 +1,347 @@
+/*
+ * Cryptographic API.
+ *
+ * Glue code for the SHA512 Secure Hash Algorithm assembler
+ * implementation using supplemental SSE3 / AVX / AVX2 instructions.
+ *
+ * This file is based on sha512_generic.c
+ *
+ * Copyright (C) 2013 Intel Corporation
+ * Author: Tim Chen <tim.c.chen@linux.intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <crypto/sha2.h>
+#include <crypto/sha512_base.h>
+#include <asm/cpu_device_id.h>
+#include <asm/simd.h>
+
+asmlinkage void sha512_transform_ssse3(struct sha512_state *state,
+ const u8 *data, int blocks);
+
+static int sha512_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len, sha512_block_fn *sha512_xform)
+{
+ struct sha512_state *sctx = shash_desc_ctx(desc);
+
+ if (!crypto_simd_usable() ||
+ (sctx->count[0] % SHA512_BLOCK_SIZE) + len < SHA512_BLOCK_SIZE)
+ return crypto_sha512_update(desc, data, len);
+
+ /*
+ * Make sure struct sha512_state begins directly with the SHA512
+ * 512-bit internal state, as this is what the asm functions expect.
+ */
+ BUILD_BUG_ON(offsetof(struct sha512_state, state) != 0);
+
+ kernel_fpu_begin();
+ sha512_base_do_update(desc, data, len, sha512_xform);
+ kernel_fpu_end();
+
+ return 0;
+}
+
+static int sha512_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out, sha512_block_fn *sha512_xform)
+{
+ if (!crypto_simd_usable())
+ return crypto_sha512_finup(desc, data, len, out);
+
+ kernel_fpu_begin();
+ if (len)
+ sha512_base_do_update(desc, data, len, sha512_xform);
+ sha512_base_do_finalize(desc, sha512_xform);
+ kernel_fpu_end();
+
+ return sha512_base_finish(desc, out);
+}
+
+static int sha512_ssse3_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return sha512_update(desc, data, len, sha512_transform_ssse3);
+}
+
+static int sha512_ssse3_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha512_finup(desc, data, len, out, sha512_transform_ssse3);
+}
+
+/* Add padding and return the message digest. */
+static int sha512_ssse3_final(struct shash_desc *desc, u8 *out)
+{
+ return sha512_ssse3_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha512_ssse3_algs[] = { {
+ .digestsize = SHA512_DIGEST_SIZE,
+ .init = sha512_base_init,
+ .update = sha512_ssse3_update,
+ .final = sha512_ssse3_final,
+ .finup = sha512_ssse3_finup,
+ .descsize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "sha512",
+ .cra_driver_name = "sha512-ssse3",
+ .cra_priority = 150,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+}, {
+ .digestsize = SHA384_DIGEST_SIZE,
+ .init = sha384_base_init,
+ .update = sha512_ssse3_update,
+ .final = sha512_ssse3_final,
+ .finup = sha512_ssse3_finup,
+ .descsize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "sha384",
+ .cra_driver_name = "sha384-ssse3",
+ .cra_priority = 150,
+ .cra_blocksize = SHA384_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+} };
+
+static int register_sha512_ssse3(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SSSE3))
+ return crypto_register_shashes(sha512_ssse3_algs,
+ ARRAY_SIZE(sha512_ssse3_algs));
+ return 0;
+}
+
+static void unregister_sha512_ssse3(void)
+{
+ if (boot_cpu_has(X86_FEATURE_SSSE3))
+ crypto_unregister_shashes(sha512_ssse3_algs,
+ ARRAY_SIZE(sha512_ssse3_algs));
+}
+
+asmlinkage void sha512_transform_avx(struct sha512_state *state,
+ const u8 *data, int blocks);
+static bool avx_usable(void)
+{
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, NULL)) {
+ if (boot_cpu_has(X86_FEATURE_AVX))
+ pr_info("AVX detected but unusable.\n");
+ return false;
+ }
+
+ return true;
+}
+
+static int sha512_avx_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return sha512_update(desc, data, len, sha512_transform_avx);
+}
+
+static int sha512_avx_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha512_finup(desc, data, len, out, sha512_transform_avx);
+}
+
+/* Add padding and return the message digest. */
+static int sha512_avx_final(struct shash_desc *desc, u8 *out)
+{
+ return sha512_avx_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha512_avx_algs[] = { {
+ .digestsize = SHA512_DIGEST_SIZE,
+ .init = sha512_base_init,
+ .update = sha512_avx_update,
+ .final = sha512_avx_final,
+ .finup = sha512_avx_finup,
+ .descsize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "sha512",
+ .cra_driver_name = "sha512-avx",
+ .cra_priority = 160,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+}, {
+ .digestsize = SHA384_DIGEST_SIZE,
+ .init = sha384_base_init,
+ .update = sha512_avx_update,
+ .final = sha512_avx_final,
+ .finup = sha512_avx_finup,
+ .descsize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "sha384",
+ .cra_driver_name = "sha384-avx",
+ .cra_priority = 160,
+ .cra_blocksize = SHA384_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+} };
+
+static int register_sha512_avx(void)
+{
+ if (avx_usable())
+ return crypto_register_shashes(sha512_avx_algs,
+ ARRAY_SIZE(sha512_avx_algs));
+ return 0;
+}
+
+static void unregister_sha512_avx(void)
+{
+ if (avx_usable())
+ crypto_unregister_shashes(sha512_avx_algs,
+ ARRAY_SIZE(sha512_avx_algs));
+}
+
+asmlinkage void sha512_transform_rorx(struct sha512_state *state,
+ const u8 *data, int blocks);
+
+static int sha512_avx2_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ return sha512_update(desc, data, len, sha512_transform_rorx);
+}
+
+static int sha512_avx2_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ return sha512_finup(desc, data, len, out, sha512_transform_rorx);
+}
+
+/* Add padding and return the message digest. */
+static int sha512_avx2_final(struct shash_desc *desc, u8 *out)
+{
+ return sha512_avx2_finup(desc, NULL, 0, out);
+}
+
+static struct shash_alg sha512_avx2_algs[] = { {
+ .digestsize = SHA512_DIGEST_SIZE,
+ .init = sha512_base_init,
+ .update = sha512_avx2_update,
+ .final = sha512_avx2_final,
+ .finup = sha512_avx2_finup,
+ .descsize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "sha512",
+ .cra_driver_name = "sha512-avx2",
+ .cra_priority = 170,
+ .cra_blocksize = SHA512_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+}, {
+ .digestsize = SHA384_DIGEST_SIZE,
+ .init = sha384_base_init,
+ .update = sha512_avx2_update,
+ .final = sha512_avx2_final,
+ .finup = sha512_avx2_finup,
+ .descsize = sizeof(struct sha512_state),
+ .base = {
+ .cra_name = "sha384",
+ .cra_driver_name = "sha384-avx2",
+ .cra_priority = 170,
+ .cra_blocksize = SHA384_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+} };
+
+static bool avx2_usable(void)
+{
+ if (avx_usable() && boot_cpu_has(X86_FEATURE_AVX2) &&
+ boot_cpu_has(X86_FEATURE_BMI2))
+ return true;
+
+ return false;
+}
+
+static int register_sha512_avx2(void)
+{
+ if (avx2_usable())
+ return crypto_register_shashes(sha512_avx2_algs,
+ ARRAY_SIZE(sha512_avx2_algs));
+ return 0;
+}
+static const struct x86_cpu_id module_cpu_ids[] = {
+ X86_MATCH_FEATURE(X86_FEATURE_AVX2, NULL),
+ X86_MATCH_FEATURE(X86_FEATURE_AVX, NULL),
+ X86_MATCH_FEATURE(X86_FEATURE_SSSE3, NULL),
+ {}
+};
+MODULE_DEVICE_TABLE(x86cpu, module_cpu_ids);
+
+static void unregister_sha512_avx2(void)
+{
+ if (avx2_usable())
+ crypto_unregister_shashes(sha512_avx2_algs,
+ ARRAY_SIZE(sha512_avx2_algs));
+}
+
+static int __init sha512_ssse3_mod_init(void)
+{
+ if (!x86_match_cpu(module_cpu_ids))
+ return -ENODEV;
+
+ if (register_sha512_ssse3())
+ goto fail;
+
+ if (register_sha512_avx()) {
+ unregister_sha512_ssse3();
+ goto fail;
+ }
+
+ if (register_sha512_avx2()) {
+ unregister_sha512_avx();
+ unregister_sha512_ssse3();
+ goto fail;
+ }
+
+ return 0;
+fail:
+ return -ENODEV;
+}
+
+static void __exit sha512_ssse3_mod_fini(void)
+{
+ unregister_sha512_avx2();
+ unregister_sha512_avx();
+ unregister_sha512_ssse3();
+}
+
+module_init(sha512_ssse3_mod_init);
+module_exit(sha512_ssse3_mod_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("SHA512 Secure Hash Algorithm, Supplemental SSE3 accelerated");
+
+MODULE_ALIAS_CRYPTO("sha512");
+MODULE_ALIAS_CRYPTO("sha512-ssse3");
+MODULE_ALIAS_CRYPTO("sha512-avx");
+MODULE_ALIAS_CRYPTO("sha512-avx2");
+MODULE_ALIAS_CRYPTO("sha384");
+MODULE_ALIAS_CRYPTO("sha384-ssse3");
+MODULE_ALIAS_CRYPTO("sha384-avx");
+MODULE_ALIAS_CRYPTO("sha384-avx2");
diff --git a/arch/x86/crypto/sm3-avx-asm_64.S b/arch/x86/crypto/sm3-avx-asm_64.S
new file mode 100644
index 000000000000..503bab450a91
--- /dev/null
+++ b/arch/x86/crypto/sm3-avx-asm_64.S
@@ -0,0 +1,517 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SM3 AVX accelerated transform.
+ * specified in: https://datatracker.ietf.org/doc/html/draft-sca-cfrg-sm3-02
+ *
+ * Copyright (C) 2021 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ * Copyright (C) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+/* Based on SM3 AES/BMI2 accelerated work by libgcrypt at:
+ * https://gnupg.org/software/libgcrypt/index.html
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+#include <asm/frame.h>
+
+/* Context structure */
+
+#define state_h0 0
+#define state_h1 4
+#define state_h2 8
+#define state_h3 12
+#define state_h4 16
+#define state_h5 20
+#define state_h6 24
+#define state_h7 28
+
+/* Constants */
+
+/* Round constant macros */
+
+#define K0 2043430169 /* 0x79cc4519 */
+#define K1 -208106958 /* 0xf3988a32 */
+#define K2 -416213915 /* 0xe7311465 */
+#define K3 -832427829 /* 0xce6228cb */
+#define K4 -1664855657 /* 0x9cc45197 */
+#define K5 965255983 /* 0x3988a32f */
+#define K6 1930511966 /* 0x7311465e */
+#define K7 -433943364 /* 0xe6228cbc */
+#define K8 -867886727 /* 0xcc451979 */
+#define K9 -1735773453 /* 0x988a32f3 */
+#define K10 823420391 /* 0x311465e7 */
+#define K11 1646840782 /* 0x6228cbce */
+#define K12 -1001285732 /* 0xc451979c */
+#define K13 -2002571463 /* 0x88a32f39 */
+#define K14 289824371 /* 0x11465e73 */
+#define K15 579648742 /* 0x228cbce6 */
+#define K16 -1651869049 /* 0x9d8a7a87 */
+#define K17 991229199 /* 0x3b14f50f */
+#define K18 1982458398 /* 0x7629ea1e */
+#define K19 -330050500 /* 0xec53d43c */
+#define K20 -660100999 /* 0xd8a7a879 */
+#define K21 -1320201997 /* 0xb14f50f3 */
+#define K22 1654563303 /* 0x629ea1e7 */
+#define K23 -985840690 /* 0xc53d43ce */
+#define K24 -1971681379 /* 0x8a7a879d */
+#define K25 351604539 /* 0x14f50f3b */
+#define K26 703209078 /* 0x29ea1e76 */
+#define K27 1406418156 /* 0x53d43cec */
+#define K28 -1482130984 /* 0xa7a879d8 */
+#define K29 1330705329 /* 0x4f50f3b1 */
+#define K30 -1633556638 /* 0x9ea1e762 */
+#define K31 1027854021 /* 0x3d43cec5 */
+#define K32 2055708042 /* 0x7a879d8a */
+#define K33 -183551212 /* 0xf50f3b14 */
+#define K34 -367102423 /* 0xea1e7629 */
+#define K35 -734204845 /* 0xd43cec53 */
+#define K36 -1468409689 /* 0xa879d8a7 */
+#define K37 1358147919 /* 0x50f3b14f */
+#define K38 -1578671458 /* 0xa1e7629e */
+#define K39 1137624381 /* 0x43cec53d */
+#define K40 -2019718534 /* 0x879d8a7a */
+#define K41 255530229 /* 0x0f3b14f5 */
+#define K42 511060458 /* 0x1e7629ea */
+#define K43 1022120916 /* 0x3cec53d4 */
+#define K44 2044241832 /* 0x79d8a7a8 */
+#define K45 -206483632 /* 0xf3b14f50 */
+#define K46 -412967263 /* 0xe7629ea1 */
+#define K47 -825934525 /* 0xcec53d43 */
+#define K48 -1651869049 /* 0x9d8a7a87 */
+#define K49 991229199 /* 0x3b14f50f */
+#define K50 1982458398 /* 0x7629ea1e */
+#define K51 -330050500 /* 0xec53d43c */
+#define K52 -660100999 /* 0xd8a7a879 */
+#define K53 -1320201997 /* 0xb14f50f3 */
+#define K54 1654563303 /* 0x629ea1e7 */
+#define K55 -985840690 /* 0xc53d43ce */
+#define K56 -1971681379 /* 0x8a7a879d */
+#define K57 351604539 /* 0x14f50f3b */
+#define K58 703209078 /* 0x29ea1e76 */
+#define K59 1406418156 /* 0x53d43cec */
+#define K60 -1482130984 /* 0xa7a879d8 */
+#define K61 1330705329 /* 0x4f50f3b1 */
+#define K62 -1633556638 /* 0x9ea1e762 */
+#define K63 1027854021 /* 0x3d43cec5 */
+
+/* Register macros */
+
+#define RSTATE %rdi
+#define RDATA %rsi
+#define RNBLKS %rdx
+
+#define t0 %eax
+#define t1 %ebx
+#define t2 %ecx
+
+#define a %r8d
+#define b %r9d
+#define c %r10d
+#define d %r11d
+#define e %r12d
+#define f %r13d
+#define g %r14d
+#define h %r15d
+
+#define W0 %xmm0
+#define W1 %xmm1
+#define W2 %xmm2
+#define W3 %xmm3
+#define W4 %xmm4
+#define W5 %xmm5
+
+#define XTMP0 %xmm6
+#define XTMP1 %xmm7
+#define XTMP2 %xmm8
+#define XTMP3 %xmm9
+#define XTMP4 %xmm10
+#define XTMP5 %xmm11
+#define XTMP6 %xmm12
+
+#define BSWAP_REG %xmm15
+
+/* Stack structure */
+
+#define STACK_W_SIZE (32 * 2 * 3)
+#define STACK_REG_SAVE_SIZE (64)
+
+#define STACK_W (0)
+#define STACK_REG_SAVE (STACK_W + STACK_W_SIZE)
+#define STACK_SIZE (STACK_REG_SAVE + STACK_REG_SAVE_SIZE)
+
+/* Instruction helpers. */
+
+#define roll2(v, reg) \
+ roll $(v), reg;
+
+#define roll3mov(v, src, dst) \
+ movl src, dst; \
+ roll $(v), dst;
+
+#define roll3(v, src, dst) \
+ rorxl $(32-(v)), src, dst;
+
+#define addl2(a, out) \
+ leal (a, out), out;
+
+/* Round function macros. */
+
+#define GG1(x, y, z, o, t) \
+ movl x, o; \
+ xorl y, o; \
+ xorl z, o;
+
+#define FF1(x, y, z, o, t) GG1(x, y, z, o, t)
+
+#define GG2(x, y, z, o, t) \
+ andnl z, x, o; \
+ movl y, t; \
+ andl x, t; \
+ addl2(t, o);
+
+#define FF2(x, y, z, o, t) \
+ movl y, o; \
+ xorl x, o; \
+ movl y, t; \
+ andl x, t; \
+ andl z, o; \
+ xorl t, o;
+
+#define R(i, a, b, c, d, e, f, g, h, round, widx, wtype) \
+ /* rol(a, 12) => t0 */ \
+ roll3mov(12, a, t0); /* rorxl here would reduce perf by 6% on zen3 */ \
+ /* rol (t0 + e + t), 7) => t1 */ \
+ leal K##round(t0, e, 1), t1; \
+ roll2(7, t1); \
+ /* h + w1 => h */ \
+ addl wtype##_W1_ADDR(round, widx), h; \
+ /* h + t1 => h */ \
+ addl2(t1, h); \
+ /* t1 ^ t0 => t0 */ \
+ xorl t1, t0; \
+ /* w1w2 + d => d */ \
+ addl wtype##_W1W2_ADDR(round, widx), d; \
+ /* FF##i(a,b,c) => t1 */ \
+ FF##i(a, b, c, t1, t2); \
+ /* d + t1 => d */ \
+ addl2(t1, d); \
+ /* GG#i(e,f,g) => t2 */ \
+ GG##i(e, f, g, t2, t1); \
+ /* h + t2 => h */ \
+ addl2(t2, h); \
+ /* rol (f, 19) => f */ \
+ roll2(19, f); \
+ /* d + t0 => d */ \
+ addl2(t0, d); \
+ /* rol (b, 9) => b */ \
+ roll2(9, b); \
+ /* P0(h) => h */ \
+ roll3(9, h, t2); \
+ roll3(17, h, t1); \
+ xorl t2, h; \
+ xorl t1, h;
+
+#define R1(a, b, c, d, e, f, g, h, round, widx, wtype) \
+ R(1, a, b, c, d, e, f, g, h, round, widx, wtype)
+
+#define R2(a, b, c, d, e, f, g, h, round, widx, wtype) \
+ R(2, a, b, c, d, e, f, g, h, round, widx, wtype)
+
+/* Input expansion macros. */
+
+/* Byte-swapped input address. */
+#define IW_W_ADDR(round, widx, offs) \
+ (STACK_W + ((round) / 4) * 64 + (offs) + ((widx) * 4))(%rsp)
+
+/* Expanded input address. */
+#define XW_W_ADDR(round, widx, offs) \
+ (STACK_W + ((((round) / 3) - 4) % 2) * 64 + (offs) + ((widx) * 4))(%rsp)
+
+/* Rounds 1-12, byte-swapped input block addresses. */
+#define IW_W1_ADDR(round, widx) IW_W_ADDR(round, widx, 0)
+#define IW_W1W2_ADDR(round, widx) IW_W_ADDR(round, widx, 32)
+
+/* Rounds 1-12, expanded input block addresses. */
+#define XW_W1_ADDR(round, widx) XW_W_ADDR(round, widx, 0)
+#define XW_W1W2_ADDR(round, widx) XW_W_ADDR(round, widx, 32)
+
+/* Input block loading. */
+#define LOAD_W_XMM_1() \
+ vmovdqu 0*16(RDATA), XTMP0; /* XTMP0: w3, w2, w1, w0 */ \
+ vmovdqu 1*16(RDATA), XTMP1; /* XTMP1: w7, w6, w5, w4 */ \
+ vmovdqu 2*16(RDATA), XTMP2; /* XTMP2: w11, w10, w9, w8 */ \
+ vmovdqu 3*16(RDATA), XTMP3; /* XTMP3: w15, w14, w13, w12 */ \
+ vpshufb BSWAP_REG, XTMP0, XTMP0; \
+ vpshufb BSWAP_REG, XTMP1, XTMP1; \
+ vpshufb BSWAP_REG, XTMP2, XTMP2; \
+ vpshufb BSWAP_REG, XTMP3, XTMP3; \
+ vpxor XTMP0, XTMP1, XTMP4; \
+ vpxor XTMP1, XTMP2, XTMP5; \
+ vpxor XTMP2, XTMP3, XTMP6; \
+ leaq 64(RDATA), RDATA; \
+ vmovdqa XTMP0, IW_W1_ADDR(0, 0); \
+ vmovdqa XTMP4, IW_W1W2_ADDR(0, 0); \
+ vmovdqa XTMP1, IW_W1_ADDR(4, 0); \
+ vmovdqa XTMP5, IW_W1W2_ADDR(4, 0);
+
+#define LOAD_W_XMM_2() \
+ vmovdqa XTMP2, IW_W1_ADDR(8, 0); \
+ vmovdqa XTMP6, IW_W1W2_ADDR(8, 0);
+
+#define LOAD_W_XMM_3() \
+ vpshufd $0b00000000, XTMP0, W0; /* W0: xx, w0, xx, xx */ \
+ vpshufd $0b11111001, XTMP0, W1; /* W1: xx, w3, w2, w1 */ \
+ vmovdqa XTMP1, W2; /* W2: xx, w6, w5, w4 */ \
+ vpalignr $12, XTMP1, XTMP2, W3; /* W3: xx, w9, w8, w7 */ \
+ vpalignr $8, XTMP2, XTMP3, W4; /* W4: xx, w12, w11, w10 */ \
+ vpshufd $0b11111001, XTMP3, W5; /* W5: xx, w15, w14, w13 */
+
+/* Message scheduling. Note: 3 words per XMM register. */
+#define SCHED_W_0(round, w0, w1, w2, w3, w4, w5) \
+ /* Load (w[i - 16]) => XTMP0 */ \
+ vpshufd $0b10111111, w0, XTMP0; \
+ vpalignr $12, XTMP0, w1, XTMP0; /* XTMP0: xx, w2, w1, w0 */ \
+ /* Load (w[i - 13]) => XTMP1 */ \
+ vpshufd $0b10111111, w1, XTMP1; \
+ vpalignr $12, XTMP1, w2, XTMP1; \
+ /* w[i - 9] == w3 */ \
+ /* XMM3 ^ XTMP0 => XTMP0 */ \
+ vpxor w3, XTMP0, XTMP0;
+
+#define SCHED_W_1(round, w0, w1, w2, w3, w4, w5) \
+ /* w[i - 3] == w5 */ \
+ /* rol(XMM5, 15) ^ XTMP0 => XTMP0 */ \
+ vpslld $15, w5, XTMP2; \
+ vpsrld $(32-15), w5, XTMP3; \
+ vpxor XTMP2, XTMP3, XTMP3; \
+ vpxor XTMP3, XTMP0, XTMP0; \
+ /* rol(XTMP1, 7) => XTMP1 */ \
+ vpslld $7, XTMP1, XTMP5; \
+ vpsrld $(32-7), XTMP1, XTMP1; \
+ vpxor XTMP5, XTMP1, XTMP1; \
+ /* XMM4 ^ XTMP1 => XTMP1 */ \
+ vpxor w4, XTMP1, XTMP1; \
+ /* w[i - 6] == XMM4 */ \
+ /* P1(XTMP0) ^ XTMP1 => XMM0 */ \
+ vpslld $15, XTMP0, XTMP5; \
+ vpsrld $(32-15), XTMP0, XTMP6; \
+ vpslld $23, XTMP0, XTMP2; \
+ vpsrld $(32-23), XTMP0, XTMP3; \
+ vpxor XTMP0, XTMP1, XTMP1; \
+ vpxor XTMP6, XTMP5, XTMP5; \
+ vpxor XTMP3, XTMP2, XTMP2; \
+ vpxor XTMP2, XTMP5, XTMP5; \
+ vpxor XTMP5, XTMP1, w0;
+
+#define SCHED_W_2(round, w0, w1, w2, w3, w4, w5) \
+ /* W1 in XMM12 */ \
+ vpshufd $0b10111111, w4, XTMP4; \
+ vpalignr $12, XTMP4, w5, XTMP4; \
+ vmovdqa XTMP4, XW_W1_ADDR((round), 0); \
+ /* W1 ^ W2 => XTMP1 */ \
+ vpxor w0, XTMP4, XTMP1; \
+ vmovdqa XTMP1, XW_W1W2_ADDR((round), 0);
+
+
+.section .rodata.cst16, "aM", @progbits, 16
+.align 16
+
+.Lbe32mask:
+ .long 0x00010203, 0x04050607, 0x08090a0b, 0x0c0d0e0f
+
+.text
+
+/*
+ * Transform nblocks*64 bytes (nblocks*16 32-bit words) at DATA.
+ *
+ * void sm3_transform_avx(struct sm3_state *state,
+ * const u8 *data, int nblocks);
+ */
+SYM_TYPED_FUNC_START(sm3_transform_avx)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: data (64*nblks bytes)
+ * %rdx: nblocks
+ */
+ vzeroupper;
+
+ pushq %rbp;
+ movq %rsp, %rbp;
+
+ movq %rdx, RNBLKS;
+
+ subq $STACK_SIZE, %rsp;
+ andq $(~63), %rsp;
+
+ movq %rbx, (STACK_REG_SAVE + 0 * 8)(%rsp);
+ movq %r15, (STACK_REG_SAVE + 1 * 8)(%rsp);
+ movq %r14, (STACK_REG_SAVE + 2 * 8)(%rsp);
+ movq %r13, (STACK_REG_SAVE + 3 * 8)(%rsp);
+ movq %r12, (STACK_REG_SAVE + 4 * 8)(%rsp);
+
+ vmovdqa .Lbe32mask (%rip), BSWAP_REG;
+
+ /* Get the values of the chaining variables. */
+ movl state_h0(RSTATE), a;
+ movl state_h1(RSTATE), b;
+ movl state_h2(RSTATE), c;
+ movl state_h3(RSTATE), d;
+ movl state_h4(RSTATE), e;
+ movl state_h5(RSTATE), f;
+ movl state_h6(RSTATE), g;
+ movl state_h7(RSTATE), h;
+
+.align 16
+.Loop:
+ /* Load data part1. */
+ LOAD_W_XMM_1();
+
+ leaq -1(RNBLKS), RNBLKS;
+
+ /* Transform 0-3 + Load data part2. */
+ R1(a, b, c, d, e, f, g, h, 0, 0, IW); LOAD_W_XMM_2();
+ R1(d, a, b, c, h, e, f, g, 1, 1, IW);
+ R1(c, d, a, b, g, h, e, f, 2, 2, IW);
+ R1(b, c, d, a, f, g, h, e, 3, 3, IW); LOAD_W_XMM_3();
+
+ /* Transform 4-7 + Precalc 12-14. */
+ R1(a, b, c, d, e, f, g, h, 4, 0, IW);
+ R1(d, a, b, c, h, e, f, g, 5, 1, IW);
+ R1(c, d, a, b, g, h, e, f, 6, 2, IW); SCHED_W_0(12, W0, W1, W2, W3, W4, W5);
+ R1(b, c, d, a, f, g, h, e, 7, 3, IW); SCHED_W_1(12, W0, W1, W2, W3, W4, W5);
+
+ /* Transform 8-11 + Precalc 12-17. */
+ R1(a, b, c, d, e, f, g, h, 8, 0, IW); SCHED_W_2(12, W0, W1, W2, W3, W4, W5);
+ R1(d, a, b, c, h, e, f, g, 9, 1, IW); SCHED_W_0(15, W1, W2, W3, W4, W5, W0);
+ R1(c, d, a, b, g, h, e, f, 10, 2, IW); SCHED_W_1(15, W1, W2, W3, W4, W5, W0);
+ R1(b, c, d, a, f, g, h, e, 11, 3, IW); SCHED_W_2(15, W1, W2, W3, W4, W5, W0);
+
+ /* Transform 12-14 + Precalc 18-20 */
+ R1(a, b, c, d, e, f, g, h, 12, 0, XW); SCHED_W_0(18, W2, W3, W4, W5, W0, W1);
+ R1(d, a, b, c, h, e, f, g, 13, 1, XW); SCHED_W_1(18, W2, W3, W4, W5, W0, W1);
+ R1(c, d, a, b, g, h, e, f, 14, 2, XW); SCHED_W_2(18, W2, W3, W4, W5, W0, W1);
+
+ /* Transform 15-17 + Precalc 21-23 */
+ R1(b, c, d, a, f, g, h, e, 15, 0, XW); SCHED_W_0(21, W3, W4, W5, W0, W1, W2);
+ R2(a, b, c, d, e, f, g, h, 16, 1, XW); SCHED_W_1(21, W3, W4, W5, W0, W1, W2);
+ R2(d, a, b, c, h, e, f, g, 17, 2, XW); SCHED_W_2(21, W3, W4, W5, W0, W1, W2);
+
+ /* Transform 18-20 + Precalc 24-26 */
+ R2(c, d, a, b, g, h, e, f, 18, 0, XW); SCHED_W_0(24, W4, W5, W0, W1, W2, W3);
+ R2(b, c, d, a, f, g, h, e, 19, 1, XW); SCHED_W_1(24, W4, W5, W0, W1, W2, W3);
+ R2(a, b, c, d, e, f, g, h, 20, 2, XW); SCHED_W_2(24, W4, W5, W0, W1, W2, W3);
+
+ /* Transform 21-23 + Precalc 27-29 */
+ R2(d, a, b, c, h, e, f, g, 21, 0, XW); SCHED_W_0(27, W5, W0, W1, W2, W3, W4);
+ R2(c, d, a, b, g, h, e, f, 22, 1, XW); SCHED_W_1(27, W5, W0, W1, W2, W3, W4);
+ R2(b, c, d, a, f, g, h, e, 23, 2, XW); SCHED_W_2(27, W5, W0, W1, W2, W3, W4);
+
+ /* Transform 24-26 + Precalc 30-32 */
+ R2(a, b, c, d, e, f, g, h, 24, 0, XW); SCHED_W_0(30, W0, W1, W2, W3, W4, W5);
+ R2(d, a, b, c, h, e, f, g, 25, 1, XW); SCHED_W_1(30, W0, W1, W2, W3, W4, W5);
+ R2(c, d, a, b, g, h, e, f, 26, 2, XW); SCHED_W_2(30, W0, W1, W2, W3, W4, W5);
+
+ /* Transform 27-29 + Precalc 33-35 */
+ R2(b, c, d, a, f, g, h, e, 27, 0, XW); SCHED_W_0(33, W1, W2, W3, W4, W5, W0);
+ R2(a, b, c, d, e, f, g, h, 28, 1, XW); SCHED_W_1(33, W1, W2, W3, W4, W5, W0);
+ R2(d, a, b, c, h, e, f, g, 29, 2, XW); SCHED_W_2(33, W1, W2, W3, W4, W5, W0);
+
+ /* Transform 30-32 + Precalc 36-38 */
+ R2(c, d, a, b, g, h, e, f, 30, 0, XW); SCHED_W_0(36, W2, W3, W4, W5, W0, W1);
+ R2(b, c, d, a, f, g, h, e, 31, 1, XW); SCHED_W_1(36, W2, W3, W4, W5, W0, W1);
+ R2(a, b, c, d, e, f, g, h, 32, 2, XW); SCHED_W_2(36, W2, W3, W4, W5, W0, W1);
+
+ /* Transform 33-35 + Precalc 39-41 */
+ R2(d, a, b, c, h, e, f, g, 33, 0, XW); SCHED_W_0(39, W3, W4, W5, W0, W1, W2);
+ R2(c, d, a, b, g, h, e, f, 34, 1, XW); SCHED_W_1(39, W3, W4, W5, W0, W1, W2);
+ R2(b, c, d, a, f, g, h, e, 35, 2, XW); SCHED_W_2(39, W3, W4, W5, W0, W1, W2);
+
+ /* Transform 36-38 + Precalc 42-44 */
+ R2(a, b, c, d, e, f, g, h, 36, 0, XW); SCHED_W_0(42, W4, W5, W0, W1, W2, W3);
+ R2(d, a, b, c, h, e, f, g, 37, 1, XW); SCHED_W_1(42, W4, W5, W0, W1, W2, W3);
+ R2(c, d, a, b, g, h, e, f, 38, 2, XW); SCHED_W_2(42, W4, W5, W0, W1, W2, W3);
+
+ /* Transform 39-41 + Precalc 45-47 */
+ R2(b, c, d, a, f, g, h, e, 39, 0, XW); SCHED_W_0(45, W5, W0, W1, W2, W3, W4);
+ R2(a, b, c, d, e, f, g, h, 40, 1, XW); SCHED_W_1(45, W5, W0, W1, W2, W3, W4);
+ R2(d, a, b, c, h, e, f, g, 41, 2, XW); SCHED_W_2(45, W5, W0, W1, W2, W3, W4);
+
+ /* Transform 42-44 + Precalc 48-50 */
+ R2(c, d, a, b, g, h, e, f, 42, 0, XW); SCHED_W_0(48, W0, W1, W2, W3, W4, W5);
+ R2(b, c, d, a, f, g, h, e, 43, 1, XW); SCHED_W_1(48, W0, W1, W2, W3, W4, W5);
+ R2(a, b, c, d, e, f, g, h, 44, 2, XW); SCHED_W_2(48, W0, W1, W2, W3, W4, W5);
+
+ /* Transform 45-47 + Precalc 51-53 */
+ R2(d, a, b, c, h, e, f, g, 45, 0, XW); SCHED_W_0(51, W1, W2, W3, W4, W5, W0);
+ R2(c, d, a, b, g, h, e, f, 46, 1, XW); SCHED_W_1(51, W1, W2, W3, W4, W5, W0);
+ R2(b, c, d, a, f, g, h, e, 47, 2, XW); SCHED_W_2(51, W1, W2, W3, W4, W5, W0);
+
+ /* Transform 48-50 + Precalc 54-56 */
+ R2(a, b, c, d, e, f, g, h, 48, 0, XW); SCHED_W_0(54, W2, W3, W4, W5, W0, W1);
+ R2(d, a, b, c, h, e, f, g, 49, 1, XW); SCHED_W_1(54, W2, W3, W4, W5, W0, W1);
+ R2(c, d, a, b, g, h, e, f, 50, 2, XW); SCHED_W_2(54, W2, W3, W4, W5, W0, W1);
+
+ /* Transform 51-53 + Precalc 57-59 */
+ R2(b, c, d, a, f, g, h, e, 51, 0, XW); SCHED_W_0(57, W3, W4, W5, W0, W1, W2);
+ R2(a, b, c, d, e, f, g, h, 52, 1, XW); SCHED_W_1(57, W3, W4, W5, W0, W1, W2);
+ R2(d, a, b, c, h, e, f, g, 53, 2, XW); SCHED_W_2(57, W3, W4, W5, W0, W1, W2);
+
+ /* Transform 54-56 + Precalc 60-62 */
+ R2(c, d, a, b, g, h, e, f, 54, 0, XW); SCHED_W_0(60, W4, W5, W0, W1, W2, W3);
+ R2(b, c, d, a, f, g, h, e, 55, 1, XW); SCHED_W_1(60, W4, W5, W0, W1, W2, W3);
+ R2(a, b, c, d, e, f, g, h, 56, 2, XW); SCHED_W_2(60, W4, W5, W0, W1, W2, W3);
+
+ /* Transform 57-59 + Precalc 63 */
+ R2(d, a, b, c, h, e, f, g, 57, 0, XW); SCHED_W_0(63, W5, W0, W1, W2, W3, W4);
+ R2(c, d, a, b, g, h, e, f, 58, 1, XW);
+ R2(b, c, d, a, f, g, h, e, 59, 2, XW); SCHED_W_1(63, W5, W0, W1, W2, W3, W4);
+
+ /* Transform 60-62 + Precalc 63 */
+ R2(a, b, c, d, e, f, g, h, 60, 0, XW);
+ R2(d, a, b, c, h, e, f, g, 61, 1, XW); SCHED_W_2(63, W5, W0, W1, W2, W3, W4);
+ R2(c, d, a, b, g, h, e, f, 62, 2, XW);
+
+ /* Transform 63 */
+ R2(b, c, d, a, f, g, h, e, 63, 0, XW);
+
+ /* Update the chaining variables. */
+ xorl state_h0(RSTATE), a;
+ xorl state_h1(RSTATE), b;
+ xorl state_h2(RSTATE), c;
+ xorl state_h3(RSTATE), d;
+ movl a, state_h0(RSTATE);
+ movl b, state_h1(RSTATE);
+ movl c, state_h2(RSTATE);
+ movl d, state_h3(RSTATE);
+ xorl state_h4(RSTATE), e;
+ xorl state_h5(RSTATE), f;
+ xorl state_h6(RSTATE), g;
+ xorl state_h7(RSTATE), h;
+ movl e, state_h4(RSTATE);
+ movl f, state_h5(RSTATE);
+ movl g, state_h6(RSTATE);
+ movl h, state_h7(RSTATE);
+
+ cmpq $0, RNBLKS;
+ jne .Loop;
+
+ vzeroall;
+
+ movq (STACK_REG_SAVE + 0 * 8)(%rsp), %rbx;
+ movq (STACK_REG_SAVE + 1 * 8)(%rsp), %r15;
+ movq (STACK_REG_SAVE + 2 * 8)(%rsp), %r14;
+ movq (STACK_REG_SAVE + 3 * 8)(%rsp), %r13;
+ movq (STACK_REG_SAVE + 4 * 8)(%rsp), %r12;
+
+ vmovdqa %xmm0, IW_W1_ADDR(0, 0);
+ vmovdqa %xmm0, IW_W1W2_ADDR(0, 0);
+ vmovdqa %xmm0, IW_W1_ADDR(4, 0);
+ vmovdqa %xmm0, IW_W1W2_ADDR(4, 0);
+ vmovdqa %xmm0, IW_W1_ADDR(8, 0);
+ vmovdqa %xmm0, IW_W1W2_ADDR(8, 0);
+
+ movq %rbp, %rsp;
+ popq %rbp;
+ RET;
+SYM_FUNC_END(sm3_transform_avx)
diff --git a/arch/x86/crypto/sm3_avx_glue.c b/arch/x86/crypto/sm3_avx_glue.c
new file mode 100644
index 000000000000..661b6f22ffcd
--- /dev/null
+++ b/arch/x86/crypto/sm3_avx_glue.c
@@ -0,0 +1,134 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SM3 Secure Hash Algorithm, AVX assembler accelerated.
+ * specified in: https://datatracker.ietf.org/doc/html/draft-sca-cfrg-sm3-02
+ *
+ * Copyright (C) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <crypto/internal/hash.h>
+#include <crypto/internal/simd.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <crypto/sm3.h>
+#include <crypto/sm3_base.h>
+#include <asm/simd.h>
+
+asmlinkage void sm3_transform_avx(struct sm3_state *state,
+ const u8 *data, int nblocks);
+
+static int sm3_avx_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len)
+{
+ struct sm3_state *sctx = shash_desc_ctx(desc);
+
+ if (!crypto_simd_usable() ||
+ (sctx->count % SM3_BLOCK_SIZE) + len < SM3_BLOCK_SIZE) {
+ sm3_update(sctx, data, len);
+ return 0;
+ }
+
+ /*
+ * Make sure struct sm3_state begins directly with the SM3
+ * 256-bit internal state, as this is what the asm functions expect.
+ */
+ BUILD_BUG_ON(offsetof(struct sm3_state, state) != 0);
+
+ kernel_fpu_begin();
+ sm3_base_do_update(desc, data, len, sm3_transform_avx);
+ kernel_fpu_end();
+
+ return 0;
+}
+
+static int sm3_avx_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out)
+{
+ if (!crypto_simd_usable()) {
+ struct sm3_state *sctx = shash_desc_ctx(desc);
+
+ if (len)
+ sm3_update(sctx, data, len);
+
+ sm3_final(sctx, out);
+ return 0;
+ }
+
+ kernel_fpu_begin();
+ if (len)
+ sm3_base_do_update(desc, data, len, sm3_transform_avx);
+ sm3_base_do_finalize(desc, sm3_transform_avx);
+ kernel_fpu_end();
+
+ return sm3_base_finish(desc, out);
+}
+
+static int sm3_avx_final(struct shash_desc *desc, u8 *out)
+{
+ if (!crypto_simd_usable()) {
+ sm3_final(shash_desc_ctx(desc), out);
+ return 0;
+ }
+
+ kernel_fpu_begin();
+ sm3_base_do_finalize(desc, sm3_transform_avx);
+ kernel_fpu_end();
+
+ return sm3_base_finish(desc, out);
+}
+
+static struct shash_alg sm3_avx_alg = {
+ .digestsize = SM3_DIGEST_SIZE,
+ .init = sm3_base_init,
+ .update = sm3_avx_update,
+ .final = sm3_avx_final,
+ .finup = sm3_avx_finup,
+ .descsize = sizeof(struct sm3_state),
+ .base = {
+ .cra_name = "sm3",
+ .cra_driver_name = "sm3-avx",
+ .cra_priority = 300,
+ .cra_blocksize = SM3_BLOCK_SIZE,
+ .cra_module = THIS_MODULE,
+ }
+};
+
+static int __init sm3_avx_mod_init(void)
+{
+ const char *feature_name;
+
+ if (!boot_cpu_has(X86_FEATURE_AVX)) {
+ pr_info("AVX instruction are not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!boot_cpu_has(X86_FEATURE_BMI2)) {
+ pr_info("BMI2 instruction are not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ return crypto_register_shash(&sm3_avx_alg);
+}
+
+static void __exit sm3_avx_mod_exit(void)
+{
+ crypto_unregister_shash(&sm3_avx_alg);
+}
+
+module_init(sm3_avx_mod_init);
+module_exit(sm3_avx_mod_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Tianjia Zhang <tianjia.zhang@linux.alibaba.com>");
+MODULE_DESCRIPTION("SM3 Secure Hash Algorithm, AVX assembler accelerated");
+MODULE_ALIAS_CRYPTO("sm3");
+MODULE_ALIAS_CRYPTO("sm3-avx");
diff --git a/arch/x86/crypto/sm4-aesni-avx-asm_64.S b/arch/x86/crypto/sm4-aesni-avx-asm_64.S
new file mode 100644
index 000000000000..e2668d2fe6ce
--- /dev/null
+++ b/arch/x86/crypto/sm4-aesni-avx-asm_64.S
@@ -0,0 +1,588 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SM4 Cipher Algorithm, AES-NI/AVX optimized.
+ * as specified in
+ * https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html
+ *
+ * Copyright (C) 2018 Markku-Juhani O. Saarinen <mjos@iki.fi>
+ * Copyright (C) 2020 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ * Copyright (c) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+/* Based on SM4 AES-NI work by libgcrypt and Markku-Juhani O. Saarinen at:
+ * https://github.com/mjosaarinen/sm4ni
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+#include <asm/frame.h>
+
+#define rRIP (%rip)
+
+#define RX0 %xmm0
+#define RX1 %xmm1
+#define MASK_4BIT %xmm2
+#define RTMP0 %xmm3
+#define RTMP1 %xmm4
+#define RTMP2 %xmm5
+#define RTMP3 %xmm6
+#define RTMP4 %xmm7
+
+#define RA0 %xmm8
+#define RA1 %xmm9
+#define RA2 %xmm10
+#define RA3 %xmm11
+
+#define RB0 %xmm12
+#define RB1 %xmm13
+#define RB2 %xmm14
+#define RB3 %xmm15
+
+#define RNOT %xmm0
+#define RBSWAP %xmm1
+
+
+/* Transpose four 32-bit words between 128-bit vectors. */
+#define transpose_4x4(x0, x1, x2, x3, t1, t2) \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x1, x0, x0; \
+ \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x2; \
+ \
+ vpunpckhqdq t1, x0, x1; \
+ vpunpcklqdq t1, x0, x0; \
+ \
+ vpunpckhqdq x2, t2, x3; \
+ vpunpcklqdq x2, t2, x2;
+
+/* pre-SubByte transform. */
+#define transform_pre(x, lo_t, hi_t, mask4bit, tmp0) \
+ vpand x, mask4bit, tmp0; \
+ vpandn x, mask4bit, x; \
+ vpsrld $4, x, x; \
+ \
+ vpshufb tmp0, lo_t, tmp0; \
+ vpshufb x, hi_t, x; \
+ vpxor tmp0, x, x;
+
+/* post-SubByte transform. Note: x has been XOR'ed with mask4bit by
+ * 'vaeslastenc' instruction.
+ */
+#define transform_post(x, lo_t, hi_t, mask4bit, tmp0) \
+ vpandn mask4bit, x, tmp0; \
+ vpsrld $4, x, x; \
+ vpand x, mask4bit, x; \
+ \
+ vpshufb tmp0, lo_t, tmp0; \
+ vpshufb x, hi_t, x; \
+ vpxor tmp0, x, x;
+
+
+.section .rodata.cst16, "aM", @progbits, 16
+.align 16
+
+/*
+ * Following four affine transform look-up tables are from work by
+ * Markku-Juhani O. Saarinen, at https://github.com/mjosaarinen/sm4ni
+ *
+ * These allow exposing SM4 S-Box from AES SubByte.
+ */
+
+/* pre-SubByte affine transform, from SM4 field to AES field. */
+.Lpre_tf_lo_s:
+ .quad 0x9197E2E474720701, 0xC7C1B4B222245157
+.Lpre_tf_hi_s:
+ .quad 0xE240AB09EB49A200, 0xF052B91BF95BB012
+
+/* post-SubByte affine transform, from AES field to SM4 field. */
+.Lpost_tf_lo_s:
+ .quad 0x5B67F2CEA19D0834, 0xEDD14478172BBE82
+.Lpost_tf_hi_s:
+ .quad 0xAE7201DD73AFDC00, 0x11CDBE62CC1063BF
+
+/* For isolating SubBytes from AESENCLAST, inverse shift row */
+.Linv_shift_row:
+ .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b
+ .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03
+
+/* Inverse shift row + Rotate left by 8 bits on 32-bit words with vpshufb */
+.Linv_shift_row_rol_8:
+ .byte 0x07, 0x00, 0x0d, 0x0a, 0x0b, 0x04, 0x01, 0x0e
+ .byte 0x0f, 0x08, 0x05, 0x02, 0x03, 0x0c, 0x09, 0x06
+
+/* Inverse shift row + Rotate left by 16 bits on 32-bit words with vpshufb */
+.Linv_shift_row_rol_16:
+ .byte 0x0a, 0x07, 0x00, 0x0d, 0x0e, 0x0b, 0x04, 0x01
+ .byte 0x02, 0x0f, 0x08, 0x05, 0x06, 0x03, 0x0c, 0x09
+
+/* Inverse shift row + Rotate left by 24 bits on 32-bit words with vpshufb */
+.Linv_shift_row_rol_24:
+ .byte 0x0d, 0x0a, 0x07, 0x00, 0x01, 0x0e, 0x0b, 0x04
+ .byte 0x05, 0x02, 0x0f, 0x08, 0x09, 0x06, 0x03, 0x0c
+
+/* For CTR-mode IV byteswap */
+.Lbswap128_mask:
+ .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+
+/* For input word byte-swap */
+.Lbswap32_mask:
+ .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
+
+.align 4
+/* 4-bit mask */
+.L0f0f0f0f:
+ .long 0x0f0f0f0f
+
+/* 12 bytes, only for padding */
+.Lpadding_deadbeef:
+ .long 0xdeadbeef, 0xdeadbeef, 0xdeadbeef
+
+
+.text
+
+/*
+ * void sm4_aesni_avx_crypt4(const u32 *rk, u8 *dst,
+ * const u8 *src, int nblocks)
+ */
+SYM_FUNC_START(sm4_aesni_avx_crypt4)
+ /* input:
+ * %rdi: round key array, CTX
+ * %rsi: dst (1..4 blocks)
+ * %rdx: src (1..4 blocks)
+ * %rcx: num blocks (1..4)
+ */
+ FRAME_BEGIN
+
+ vmovdqu 0*16(%rdx), RA0;
+ vmovdqa RA0, RA1;
+ vmovdqa RA0, RA2;
+ vmovdqa RA0, RA3;
+ cmpq $2, %rcx;
+ jb .Lblk4_load_input_done;
+ vmovdqu 1*16(%rdx), RA1;
+ je .Lblk4_load_input_done;
+ vmovdqu 2*16(%rdx), RA2;
+ cmpq $3, %rcx;
+ je .Lblk4_load_input_done;
+ vmovdqu 3*16(%rdx), RA3;
+
+.Lblk4_load_input_done:
+
+ vmovdqa .Lbswap32_mask rRIP, RTMP2;
+ vpshufb RTMP2, RA0, RA0;
+ vpshufb RTMP2, RA1, RA1;
+ vpshufb RTMP2, RA2, RA2;
+ vpshufb RTMP2, RA3, RA3;
+
+ vbroadcastss .L0f0f0f0f rRIP, MASK_4BIT;
+ vmovdqa .Lpre_tf_lo_s rRIP, RTMP4;
+ vmovdqa .Lpre_tf_hi_s rRIP, RB0;
+ vmovdqa .Lpost_tf_lo_s rRIP, RB1;
+ vmovdqa .Lpost_tf_hi_s rRIP, RB2;
+ vmovdqa .Linv_shift_row rRIP, RB3;
+ vmovdqa .Linv_shift_row_rol_8 rRIP, RTMP2;
+ vmovdqa .Linv_shift_row_rol_16 rRIP, RTMP3;
+ transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1);
+
+#define ROUND(round, s0, s1, s2, s3) \
+ vbroadcastss (4*(round))(%rdi), RX0; \
+ vpxor s1, RX0, RX0; \
+ vpxor s2, RX0, RX0; \
+ vpxor s3, RX0, RX0; /* s1 ^ s2 ^ s3 ^ rk */ \
+ \
+ /* sbox, non-linear part */ \
+ transform_pre(RX0, RTMP4, RB0, MASK_4BIT, RTMP0); \
+ vaesenclast MASK_4BIT, RX0, RX0; \
+ transform_post(RX0, RB1, RB2, MASK_4BIT, RTMP0); \
+ \
+ /* linear part */ \
+ vpshufb RB3, RX0, RTMP0; \
+ vpxor RTMP0, s0, s0; /* s0 ^ x */ \
+ vpshufb RTMP2, RX0, RTMP1; \
+ vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) */ \
+ vpshufb RTMP3, RX0, RTMP1; \
+ vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) ^ rol(x,16) */ \
+ vpshufb .Linv_shift_row_rol_24 rRIP, RX0, RTMP1; \
+ vpxor RTMP1, s0, s0; /* s0 ^ x ^ rol(x,24) */ \
+ vpslld $2, RTMP0, RTMP1; \
+ vpsrld $30, RTMP0, RTMP0; \
+ vpxor RTMP0, s0, s0; \
+ /* s0 ^ x ^ rol(x,2) ^ rol(x,10) ^ rol(x,18) ^ rol(x,24) */ \
+ vpxor RTMP1, s0, s0;
+
+ leaq (32*4)(%rdi), %rax;
+.align 16
+.Lroundloop_blk4:
+ ROUND(0, RA0, RA1, RA2, RA3);
+ ROUND(1, RA1, RA2, RA3, RA0);
+ ROUND(2, RA2, RA3, RA0, RA1);
+ ROUND(3, RA3, RA0, RA1, RA2);
+ leaq (4*4)(%rdi), %rdi;
+ cmpq %rax, %rdi;
+ jne .Lroundloop_blk4;
+
+#undef ROUND
+
+ vmovdqa .Lbswap128_mask rRIP, RTMP2;
+
+ transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1);
+ vpshufb RTMP2, RA0, RA0;
+ vpshufb RTMP2, RA1, RA1;
+ vpshufb RTMP2, RA2, RA2;
+ vpshufb RTMP2, RA3, RA3;
+
+ vmovdqu RA0, 0*16(%rsi);
+ cmpq $2, %rcx;
+ jb .Lblk4_store_output_done;
+ vmovdqu RA1, 1*16(%rsi);
+ je .Lblk4_store_output_done;
+ vmovdqu RA2, 2*16(%rsi);
+ cmpq $3, %rcx;
+ je .Lblk4_store_output_done;
+ vmovdqu RA3, 3*16(%rsi);
+
+.Lblk4_store_output_done:
+ vzeroall;
+ FRAME_END
+ RET;
+SYM_FUNC_END(sm4_aesni_avx_crypt4)
+
+SYM_FUNC_START_LOCAL(__sm4_crypt_blk8)
+ /* input:
+ * %rdi: round key array, CTX
+ * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: eight parallel
+ * plaintext blocks
+ * output:
+ * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: eight parallel
+ * ciphertext blocks
+ */
+ FRAME_BEGIN
+
+ vmovdqa .Lbswap32_mask rRIP, RTMP2;
+ vpshufb RTMP2, RA0, RA0;
+ vpshufb RTMP2, RA1, RA1;
+ vpshufb RTMP2, RA2, RA2;
+ vpshufb RTMP2, RA3, RA3;
+ vpshufb RTMP2, RB0, RB0;
+ vpshufb RTMP2, RB1, RB1;
+ vpshufb RTMP2, RB2, RB2;
+ vpshufb RTMP2, RB3, RB3;
+
+ vbroadcastss .L0f0f0f0f rRIP, MASK_4BIT;
+ transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1);
+ transpose_4x4(RB0, RB1, RB2, RB3, RTMP0, RTMP1);
+
+#define ROUND(round, s0, s1, s2, s3, r0, r1, r2, r3) \
+ vbroadcastss (4*(round))(%rdi), RX0; \
+ vmovdqa .Lpre_tf_lo_s rRIP, RTMP4; \
+ vmovdqa .Lpre_tf_hi_s rRIP, RTMP1; \
+ vmovdqa RX0, RX1; \
+ vpxor s1, RX0, RX0; \
+ vpxor s2, RX0, RX0; \
+ vpxor s3, RX0, RX0; /* s1 ^ s2 ^ s3 ^ rk */ \
+ vmovdqa .Lpost_tf_lo_s rRIP, RTMP2; \
+ vmovdqa .Lpost_tf_hi_s rRIP, RTMP3; \
+ vpxor r1, RX1, RX1; \
+ vpxor r2, RX1, RX1; \
+ vpxor r3, RX1, RX1; /* r1 ^ r2 ^ r3 ^ rk */ \
+ \
+ /* sbox, non-linear part */ \
+ transform_pre(RX0, RTMP4, RTMP1, MASK_4BIT, RTMP0); \
+ transform_pre(RX1, RTMP4, RTMP1, MASK_4BIT, RTMP0); \
+ vmovdqa .Linv_shift_row rRIP, RTMP4; \
+ vaesenclast MASK_4BIT, RX0, RX0; \
+ vaesenclast MASK_4BIT, RX1, RX1; \
+ transform_post(RX0, RTMP2, RTMP3, MASK_4BIT, RTMP0); \
+ transform_post(RX1, RTMP2, RTMP3, MASK_4BIT, RTMP0); \
+ \
+ /* linear part */ \
+ vpshufb RTMP4, RX0, RTMP0; \
+ vpxor RTMP0, s0, s0; /* s0 ^ x */ \
+ vpshufb RTMP4, RX1, RTMP2; \
+ vmovdqa .Linv_shift_row_rol_8 rRIP, RTMP4; \
+ vpxor RTMP2, r0, r0; /* r0 ^ x */ \
+ vpshufb RTMP4, RX0, RTMP1; \
+ vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) */ \
+ vpshufb RTMP4, RX1, RTMP3; \
+ vmovdqa .Linv_shift_row_rol_16 rRIP, RTMP4; \
+ vpxor RTMP3, RTMP2, RTMP2; /* x ^ rol(x,8) */ \
+ vpshufb RTMP4, RX0, RTMP1; \
+ vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) ^ rol(x,16) */ \
+ vpshufb RTMP4, RX1, RTMP3; \
+ vmovdqa .Linv_shift_row_rol_24 rRIP, RTMP4; \
+ vpxor RTMP3, RTMP2, RTMP2; /* x ^ rol(x,8) ^ rol(x,16) */ \
+ vpshufb RTMP4, RX0, RTMP1; \
+ vpxor RTMP1, s0, s0; /* s0 ^ x ^ rol(x,24) */ \
+ /* s0 ^ x ^ rol(x,2) ^ rol(x,10) ^ rol(x,18) ^ rol(x,24) */ \
+ vpslld $2, RTMP0, RTMP1; \
+ vpsrld $30, RTMP0, RTMP0; \
+ vpxor RTMP0, s0, s0; \
+ vpxor RTMP1, s0, s0; \
+ vpshufb RTMP4, RX1, RTMP3; \
+ vpxor RTMP3, r0, r0; /* r0 ^ x ^ rol(x,24) */ \
+ /* r0 ^ x ^ rol(x,2) ^ rol(x,10) ^ rol(x,18) ^ rol(x,24) */ \
+ vpslld $2, RTMP2, RTMP3; \
+ vpsrld $30, RTMP2, RTMP2; \
+ vpxor RTMP2, r0, r0; \
+ vpxor RTMP3, r0, r0;
+
+ leaq (32*4)(%rdi), %rax;
+.align 16
+.Lroundloop_blk8:
+ ROUND(0, RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3);
+ ROUND(1, RA1, RA2, RA3, RA0, RB1, RB2, RB3, RB0);
+ ROUND(2, RA2, RA3, RA0, RA1, RB2, RB3, RB0, RB1);
+ ROUND(3, RA3, RA0, RA1, RA2, RB3, RB0, RB1, RB2);
+ leaq (4*4)(%rdi), %rdi;
+ cmpq %rax, %rdi;
+ jne .Lroundloop_blk8;
+
+#undef ROUND
+
+ vmovdqa .Lbswap128_mask rRIP, RTMP2;
+
+ transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1);
+ transpose_4x4(RB0, RB1, RB2, RB3, RTMP0, RTMP1);
+ vpshufb RTMP2, RA0, RA0;
+ vpshufb RTMP2, RA1, RA1;
+ vpshufb RTMP2, RA2, RA2;
+ vpshufb RTMP2, RA3, RA3;
+ vpshufb RTMP2, RB0, RB0;
+ vpshufb RTMP2, RB1, RB1;
+ vpshufb RTMP2, RB2, RB2;
+ vpshufb RTMP2, RB3, RB3;
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(__sm4_crypt_blk8)
+
+/*
+ * void sm4_aesni_avx_crypt8(const u32 *rk, u8 *dst,
+ * const u8 *src, int nblocks)
+ */
+SYM_FUNC_START(sm4_aesni_avx_crypt8)
+ /* input:
+ * %rdi: round key array, CTX
+ * %rsi: dst (1..8 blocks)
+ * %rdx: src (1..8 blocks)
+ * %rcx: num blocks (1..8)
+ */
+ cmpq $5, %rcx;
+ jb sm4_aesni_avx_crypt4;
+
+ FRAME_BEGIN
+
+ vmovdqu (0 * 16)(%rdx), RA0;
+ vmovdqu (1 * 16)(%rdx), RA1;
+ vmovdqu (2 * 16)(%rdx), RA2;
+ vmovdqu (3 * 16)(%rdx), RA3;
+ vmovdqu (4 * 16)(%rdx), RB0;
+ vmovdqa RB0, RB1;
+ vmovdqa RB0, RB2;
+ vmovdqa RB0, RB3;
+ je .Lblk8_load_input_done;
+ vmovdqu (5 * 16)(%rdx), RB1;
+ cmpq $7, %rcx;
+ jb .Lblk8_load_input_done;
+ vmovdqu (6 * 16)(%rdx), RB2;
+ je .Lblk8_load_input_done;
+ vmovdqu (7 * 16)(%rdx), RB3;
+
+.Lblk8_load_input_done:
+ call __sm4_crypt_blk8;
+
+ cmpq $6, %rcx;
+ vmovdqu RA0, (0 * 16)(%rsi);
+ vmovdqu RA1, (1 * 16)(%rsi);
+ vmovdqu RA2, (2 * 16)(%rsi);
+ vmovdqu RA3, (3 * 16)(%rsi);
+ vmovdqu RB0, (4 * 16)(%rsi);
+ jb .Lblk8_store_output_done;
+ vmovdqu RB1, (5 * 16)(%rsi);
+ je .Lblk8_store_output_done;
+ vmovdqu RB2, (6 * 16)(%rsi);
+ cmpq $7, %rcx;
+ je .Lblk8_store_output_done;
+ vmovdqu RB3, (7 * 16)(%rsi);
+
+.Lblk8_store_output_done:
+ vzeroall;
+ FRAME_END
+ RET;
+SYM_FUNC_END(sm4_aesni_avx_crypt8)
+
+/*
+ * void sm4_aesni_avx_ctr_enc_blk8(const u32 *rk, u8 *dst,
+ * const u8 *src, u8 *iv)
+ */
+SYM_TYPED_FUNC_START(sm4_aesni_avx_ctr_enc_blk8)
+ /* input:
+ * %rdi: round key array, CTX
+ * %rsi: dst (8 blocks)
+ * %rdx: src (8 blocks)
+ * %rcx: iv (big endian, 128bit)
+ */
+ FRAME_BEGIN
+
+ /* load IV and byteswap */
+ vmovdqu (%rcx), RA0;
+
+ vmovdqa .Lbswap128_mask rRIP, RBSWAP;
+ vpshufb RBSWAP, RA0, RTMP0; /* be => le */
+
+ vpcmpeqd RNOT, RNOT, RNOT;
+ vpsrldq $8, RNOT, RNOT; /* low: -1, high: 0 */
+
+#define inc_le128(x, minus_one, tmp) \
+ vpcmpeqq minus_one, x, tmp; \
+ vpsubq minus_one, x, x; \
+ vpslldq $8, tmp, tmp; \
+ vpsubq tmp, x, x;
+
+ /* construct IVs */
+ inc_le128(RTMP0, RNOT, RTMP2); /* +1 */
+ vpshufb RBSWAP, RTMP0, RA1;
+ inc_le128(RTMP0, RNOT, RTMP2); /* +2 */
+ vpshufb RBSWAP, RTMP0, RA2;
+ inc_le128(RTMP0, RNOT, RTMP2); /* +3 */
+ vpshufb RBSWAP, RTMP0, RA3;
+ inc_le128(RTMP0, RNOT, RTMP2); /* +4 */
+ vpshufb RBSWAP, RTMP0, RB0;
+ inc_le128(RTMP0, RNOT, RTMP2); /* +5 */
+ vpshufb RBSWAP, RTMP0, RB1;
+ inc_le128(RTMP0, RNOT, RTMP2); /* +6 */
+ vpshufb RBSWAP, RTMP0, RB2;
+ inc_le128(RTMP0, RNOT, RTMP2); /* +7 */
+ vpshufb RBSWAP, RTMP0, RB3;
+ inc_le128(RTMP0, RNOT, RTMP2); /* +8 */
+ vpshufb RBSWAP, RTMP0, RTMP1;
+
+ /* store new IV */
+ vmovdqu RTMP1, (%rcx);
+
+ call __sm4_crypt_blk8;
+
+ vpxor (0 * 16)(%rdx), RA0, RA0;
+ vpxor (1 * 16)(%rdx), RA1, RA1;
+ vpxor (2 * 16)(%rdx), RA2, RA2;
+ vpxor (3 * 16)(%rdx), RA3, RA3;
+ vpxor (4 * 16)(%rdx), RB0, RB0;
+ vpxor (5 * 16)(%rdx), RB1, RB1;
+ vpxor (6 * 16)(%rdx), RB2, RB2;
+ vpxor (7 * 16)(%rdx), RB3, RB3;
+
+ vmovdqu RA0, (0 * 16)(%rsi);
+ vmovdqu RA1, (1 * 16)(%rsi);
+ vmovdqu RA2, (2 * 16)(%rsi);
+ vmovdqu RA3, (3 * 16)(%rsi);
+ vmovdqu RB0, (4 * 16)(%rsi);
+ vmovdqu RB1, (5 * 16)(%rsi);
+ vmovdqu RB2, (6 * 16)(%rsi);
+ vmovdqu RB3, (7 * 16)(%rsi);
+
+ vzeroall;
+ FRAME_END
+ RET;
+SYM_FUNC_END(sm4_aesni_avx_ctr_enc_blk8)
+
+/*
+ * void sm4_aesni_avx_cbc_dec_blk8(const u32 *rk, u8 *dst,
+ * const u8 *src, u8 *iv)
+ */
+SYM_TYPED_FUNC_START(sm4_aesni_avx_cbc_dec_blk8)
+ /* input:
+ * %rdi: round key array, CTX
+ * %rsi: dst (8 blocks)
+ * %rdx: src (8 blocks)
+ * %rcx: iv
+ */
+ FRAME_BEGIN
+
+ vmovdqu (0 * 16)(%rdx), RA0;
+ vmovdqu (1 * 16)(%rdx), RA1;
+ vmovdqu (2 * 16)(%rdx), RA2;
+ vmovdqu (3 * 16)(%rdx), RA3;
+ vmovdqu (4 * 16)(%rdx), RB0;
+ vmovdqu (5 * 16)(%rdx), RB1;
+ vmovdqu (6 * 16)(%rdx), RB2;
+ vmovdqu (7 * 16)(%rdx), RB3;
+
+ call __sm4_crypt_blk8;
+
+ vmovdqu (7 * 16)(%rdx), RNOT;
+ vpxor (%rcx), RA0, RA0;
+ vpxor (0 * 16)(%rdx), RA1, RA1;
+ vpxor (1 * 16)(%rdx), RA2, RA2;
+ vpxor (2 * 16)(%rdx), RA3, RA3;
+ vpxor (3 * 16)(%rdx), RB0, RB0;
+ vpxor (4 * 16)(%rdx), RB1, RB1;
+ vpxor (5 * 16)(%rdx), RB2, RB2;
+ vpxor (6 * 16)(%rdx), RB3, RB3;
+ vmovdqu RNOT, (%rcx); /* store new IV */
+
+ vmovdqu RA0, (0 * 16)(%rsi);
+ vmovdqu RA1, (1 * 16)(%rsi);
+ vmovdqu RA2, (2 * 16)(%rsi);
+ vmovdqu RA3, (3 * 16)(%rsi);
+ vmovdqu RB0, (4 * 16)(%rsi);
+ vmovdqu RB1, (5 * 16)(%rsi);
+ vmovdqu RB2, (6 * 16)(%rsi);
+ vmovdqu RB3, (7 * 16)(%rsi);
+
+ vzeroall;
+ FRAME_END
+ RET;
+SYM_FUNC_END(sm4_aesni_avx_cbc_dec_blk8)
+
+/*
+ * void sm4_aesni_avx_cfb_dec_blk8(const u32 *rk, u8 *dst,
+ * const u8 *src, u8 *iv)
+ */
+SYM_TYPED_FUNC_START(sm4_aesni_avx_cfb_dec_blk8)
+ /* input:
+ * %rdi: round key array, CTX
+ * %rsi: dst (8 blocks)
+ * %rdx: src (8 blocks)
+ * %rcx: iv
+ */
+ FRAME_BEGIN
+
+ /* Load input */
+ vmovdqu (%rcx), RA0;
+ vmovdqu 0 * 16(%rdx), RA1;
+ vmovdqu 1 * 16(%rdx), RA2;
+ vmovdqu 2 * 16(%rdx), RA3;
+ vmovdqu 3 * 16(%rdx), RB0;
+ vmovdqu 4 * 16(%rdx), RB1;
+ vmovdqu 5 * 16(%rdx), RB2;
+ vmovdqu 6 * 16(%rdx), RB3;
+
+ /* Update IV */
+ vmovdqu 7 * 16(%rdx), RNOT;
+ vmovdqu RNOT, (%rcx);
+
+ call __sm4_crypt_blk8;
+
+ vpxor (0 * 16)(%rdx), RA0, RA0;
+ vpxor (1 * 16)(%rdx), RA1, RA1;
+ vpxor (2 * 16)(%rdx), RA2, RA2;
+ vpxor (3 * 16)(%rdx), RA3, RA3;
+ vpxor (4 * 16)(%rdx), RB0, RB0;
+ vpxor (5 * 16)(%rdx), RB1, RB1;
+ vpxor (6 * 16)(%rdx), RB2, RB2;
+ vpxor (7 * 16)(%rdx), RB3, RB3;
+
+ vmovdqu RA0, (0 * 16)(%rsi);
+ vmovdqu RA1, (1 * 16)(%rsi);
+ vmovdqu RA2, (2 * 16)(%rsi);
+ vmovdqu RA3, (3 * 16)(%rsi);
+ vmovdqu RB0, (4 * 16)(%rsi);
+ vmovdqu RB1, (5 * 16)(%rsi);
+ vmovdqu RB2, (6 * 16)(%rsi);
+ vmovdqu RB3, (7 * 16)(%rsi);
+
+ vzeroall;
+ FRAME_END
+ RET;
+SYM_FUNC_END(sm4_aesni_avx_cfb_dec_blk8)
diff --git a/arch/x86/crypto/sm4-aesni-avx2-asm_64.S b/arch/x86/crypto/sm4-aesni-avx2-asm_64.S
new file mode 100644
index 000000000000..98ede9459287
--- /dev/null
+++ b/arch/x86/crypto/sm4-aesni-avx2-asm_64.S
@@ -0,0 +1,496 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * SM4 Cipher Algorithm, AES-NI/AVX2 optimized.
+ * as specified in
+ * https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html
+ *
+ * Copyright (C) 2018 Markku-Juhani O. Saarinen <mjos@iki.fi>
+ * Copyright (C) 2020 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ * Copyright (c) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+/* Based on SM4 AES-NI work by libgcrypt and Markku-Juhani O. Saarinen at:
+ * https://github.com/mjosaarinen/sm4ni
+ */
+
+#include <linux/linkage.h>
+#include <linux/cfi_types.h>
+#include <asm/frame.h>
+
+#define rRIP (%rip)
+
+/* vector registers */
+#define RX0 %ymm0
+#define RX1 %ymm1
+#define MASK_4BIT %ymm2
+#define RTMP0 %ymm3
+#define RTMP1 %ymm4
+#define RTMP2 %ymm5
+#define RTMP3 %ymm6
+#define RTMP4 %ymm7
+
+#define RA0 %ymm8
+#define RA1 %ymm9
+#define RA2 %ymm10
+#define RA3 %ymm11
+
+#define RB0 %ymm12
+#define RB1 %ymm13
+#define RB2 %ymm14
+#define RB3 %ymm15
+
+#define RNOT %ymm0
+#define RBSWAP %ymm1
+
+#define RX0x %xmm0
+#define RX1x %xmm1
+#define MASK_4BITx %xmm2
+
+#define RNOTx %xmm0
+#define RBSWAPx %xmm1
+
+#define RTMP0x %xmm3
+#define RTMP1x %xmm4
+#define RTMP2x %xmm5
+#define RTMP3x %xmm6
+#define RTMP4x %xmm7
+
+
+/* helper macros */
+
+/* Transpose four 32-bit words between 128-bit vector lanes. */
+#define transpose_4x4(x0, x1, x2, x3, t1, t2) \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x1, x0, x0; \
+ \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x2; \
+ \
+ vpunpckhqdq t1, x0, x1; \
+ vpunpcklqdq t1, x0, x0; \
+ \
+ vpunpckhqdq x2, t2, x3; \
+ vpunpcklqdq x2, t2, x2;
+
+/* post-SubByte transform. */
+#define transform_pre(x, lo_t, hi_t, mask4bit, tmp0) \
+ vpand x, mask4bit, tmp0; \
+ vpandn x, mask4bit, x; \
+ vpsrld $4, x, x; \
+ \
+ vpshufb tmp0, lo_t, tmp0; \
+ vpshufb x, hi_t, x; \
+ vpxor tmp0, x, x;
+
+/* post-SubByte transform. Note: x has been XOR'ed with mask4bit by
+ * 'vaeslastenc' instruction. */
+#define transform_post(x, lo_t, hi_t, mask4bit, tmp0) \
+ vpandn mask4bit, x, tmp0; \
+ vpsrld $4, x, x; \
+ vpand x, mask4bit, x; \
+ \
+ vpshufb tmp0, lo_t, tmp0; \
+ vpshufb x, hi_t, x; \
+ vpxor tmp0, x, x;
+
+
+.section .rodata.cst16, "aM", @progbits, 16
+.align 16
+
+/*
+ * Following four affine transform look-up tables are from work by
+ * Markku-Juhani O. Saarinen, at https://github.com/mjosaarinen/sm4ni
+ *
+ * These allow exposing SM4 S-Box from AES SubByte.
+ */
+
+/* pre-SubByte affine transform, from SM4 field to AES field. */
+.Lpre_tf_lo_s:
+ .quad 0x9197E2E474720701, 0xC7C1B4B222245157
+.Lpre_tf_hi_s:
+ .quad 0xE240AB09EB49A200, 0xF052B91BF95BB012
+
+/* post-SubByte affine transform, from AES field to SM4 field. */
+.Lpost_tf_lo_s:
+ .quad 0x5B67F2CEA19D0834, 0xEDD14478172BBE82
+.Lpost_tf_hi_s:
+ .quad 0xAE7201DD73AFDC00, 0x11CDBE62CC1063BF
+
+/* For isolating SubBytes from AESENCLAST, inverse shift row */
+.Linv_shift_row:
+ .byte 0x00, 0x0d, 0x0a, 0x07, 0x04, 0x01, 0x0e, 0x0b
+ .byte 0x08, 0x05, 0x02, 0x0f, 0x0c, 0x09, 0x06, 0x03
+
+/* Inverse shift row + Rotate left by 8 bits on 32-bit words with vpshufb */
+.Linv_shift_row_rol_8:
+ .byte 0x07, 0x00, 0x0d, 0x0a, 0x0b, 0x04, 0x01, 0x0e
+ .byte 0x0f, 0x08, 0x05, 0x02, 0x03, 0x0c, 0x09, 0x06
+
+/* Inverse shift row + Rotate left by 16 bits on 32-bit words with vpshufb */
+.Linv_shift_row_rol_16:
+ .byte 0x0a, 0x07, 0x00, 0x0d, 0x0e, 0x0b, 0x04, 0x01
+ .byte 0x02, 0x0f, 0x08, 0x05, 0x06, 0x03, 0x0c, 0x09
+
+/* Inverse shift row + Rotate left by 24 bits on 32-bit words with vpshufb */
+.Linv_shift_row_rol_24:
+ .byte 0x0d, 0x0a, 0x07, 0x00, 0x01, 0x0e, 0x0b, 0x04
+ .byte 0x05, 0x02, 0x0f, 0x08, 0x09, 0x06, 0x03, 0x0c
+
+/* For CTR-mode IV byteswap */
+.Lbswap128_mask:
+ .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+
+/* For input word byte-swap */
+.Lbswap32_mask:
+ .byte 3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8, 15, 14, 13, 12
+
+.align 4
+/* 4-bit mask */
+.L0f0f0f0f:
+ .long 0x0f0f0f0f
+
+/* 12 bytes, only for padding */
+.Lpadding_deadbeef:
+ .long 0xdeadbeef, 0xdeadbeef, 0xdeadbeef
+
+.text
+SYM_FUNC_START_LOCAL(__sm4_crypt_blk16)
+ /* input:
+ * %rdi: round key array, CTX
+ * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: sixteen parallel
+ * plaintext blocks
+ * output:
+ * RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3: sixteen parallel
+ * ciphertext blocks
+ */
+ FRAME_BEGIN
+
+ vbroadcasti128 .Lbswap32_mask rRIP, RTMP2;
+ vpshufb RTMP2, RA0, RA0;
+ vpshufb RTMP2, RA1, RA1;
+ vpshufb RTMP2, RA2, RA2;
+ vpshufb RTMP2, RA3, RA3;
+ vpshufb RTMP2, RB0, RB0;
+ vpshufb RTMP2, RB1, RB1;
+ vpshufb RTMP2, RB2, RB2;
+ vpshufb RTMP2, RB3, RB3;
+
+ vpbroadcastd .L0f0f0f0f rRIP, MASK_4BIT;
+ transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1);
+ transpose_4x4(RB0, RB1, RB2, RB3, RTMP0, RTMP1);
+
+#define ROUND(round, s0, s1, s2, s3, r0, r1, r2, r3) \
+ vpbroadcastd (4*(round))(%rdi), RX0; \
+ vbroadcasti128 .Lpre_tf_lo_s rRIP, RTMP4; \
+ vbroadcasti128 .Lpre_tf_hi_s rRIP, RTMP1; \
+ vmovdqa RX0, RX1; \
+ vpxor s1, RX0, RX0; \
+ vpxor s2, RX0, RX0; \
+ vpxor s3, RX0, RX0; /* s1 ^ s2 ^ s3 ^ rk */ \
+ vbroadcasti128 .Lpost_tf_lo_s rRIP, RTMP2; \
+ vbroadcasti128 .Lpost_tf_hi_s rRIP, RTMP3; \
+ vpxor r1, RX1, RX1; \
+ vpxor r2, RX1, RX1; \
+ vpxor r3, RX1, RX1; /* r1 ^ r2 ^ r3 ^ rk */ \
+ \
+ /* sbox, non-linear part */ \
+ transform_pre(RX0, RTMP4, RTMP1, MASK_4BIT, RTMP0); \
+ transform_pre(RX1, RTMP4, RTMP1, MASK_4BIT, RTMP0); \
+ vextracti128 $1, RX0, RTMP4x; \
+ vextracti128 $1, RX1, RTMP0x; \
+ vaesenclast MASK_4BITx, RX0x, RX0x; \
+ vaesenclast MASK_4BITx, RTMP4x, RTMP4x; \
+ vaesenclast MASK_4BITx, RX1x, RX1x; \
+ vaesenclast MASK_4BITx, RTMP0x, RTMP0x; \
+ vinserti128 $1, RTMP4x, RX0, RX0; \
+ vbroadcasti128 .Linv_shift_row rRIP, RTMP4; \
+ vinserti128 $1, RTMP0x, RX1, RX1; \
+ transform_post(RX0, RTMP2, RTMP3, MASK_4BIT, RTMP0); \
+ transform_post(RX1, RTMP2, RTMP3, MASK_4BIT, RTMP0); \
+ \
+ /* linear part */ \
+ vpshufb RTMP4, RX0, RTMP0; \
+ vpxor RTMP0, s0, s0; /* s0 ^ x */ \
+ vpshufb RTMP4, RX1, RTMP2; \
+ vbroadcasti128 .Linv_shift_row_rol_8 rRIP, RTMP4; \
+ vpxor RTMP2, r0, r0; /* r0 ^ x */ \
+ vpshufb RTMP4, RX0, RTMP1; \
+ vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) */ \
+ vpshufb RTMP4, RX1, RTMP3; \
+ vbroadcasti128 .Linv_shift_row_rol_16 rRIP, RTMP4; \
+ vpxor RTMP3, RTMP2, RTMP2; /* x ^ rol(x,8) */ \
+ vpshufb RTMP4, RX0, RTMP1; \
+ vpxor RTMP1, RTMP0, RTMP0; /* x ^ rol(x,8) ^ rol(x,16) */ \
+ vpshufb RTMP4, RX1, RTMP3; \
+ vbroadcasti128 .Linv_shift_row_rol_24 rRIP, RTMP4; \
+ vpxor RTMP3, RTMP2, RTMP2; /* x ^ rol(x,8) ^ rol(x,16) */ \
+ vpshufb RTMP4, RX0, RTMP1; \
+ vpxor RTMP1, s0, s0; /* s0 ^ x ^ rol(x,24) */ \
+ vpslld $2, RTMP0, RTMP1; \
+ vpsrld $30, RTMP0, RTMP0; \
+ vpxor RTMP0, s0, s0; \
+ /* s0 ^ x ^ rol(x,2) ^ rol(x,10) ^ rol(x,18) ^ rol(x,24) */ \
+ vpxor RTMP1, s0, s0; \
+ vpshufb RTMP4, RX1, RTMP3; \
+ vpxor RTMP3, r0, r0; /* r0 ^ x ^ rol(x,24) */ \
+ vpslld $2, RTMP2, RTMP3; \
+ vpsrld $30, RTMP2, RTMP2; \
+ vpxor RTMP2, r0, r0; \
+ /* r0 ^ x ^ rol(x,2) ^ rol(x,10) ^ rol(x,18) ^ rol(x,24) */ \
+ vpxor RTMP3, r0, r0;
+
+ leaq (32*4)(%rdi), %rax;
+.align 16
+.Lroundloop_blk8:
+ ROUND(0, RA0, RA1, RA2, RA3, RB0, RB1, RB2, RB3);
+ ROUND(1, RA1, RA2, RA3, RA0, RB1, RB2, RB3, RB0);
+ ROUND(2, RA2, RA3, RA0, RA1, RB2, RB3, RB0, RB1);
+ ROUND(3, RA3, RA0, RA1, RA2, RB3, RB0, RB1, RB2);
+ leaq (4*4)(%rdi), %rdi;
+ cmpq %rax, %rdi;
+ jne .Lroundloop_blk8;
+
+#undef ROUND
+
+ vbroadcasti128 .Lbswap128_mask rRIP, RTMP2;
+
+ transpose_4x4(RA0, RA1, RA2, RA3, RTMP0, RTMP1);
+ transpose_4x4(RB0, RB1, RB2, RB3, RTMP0, RTMP1);
+ vpshufb RTMP2, RA0, RA0;
+ vpshufb RTMP2, RA1, RA1;
+ vpshufb RTMP2, RA2, RA2;
+ vpshufb RTMP2, RA3, RA3;
+ vpshufb RTMP2, RB0, RB0;
+ vpshufb RTMP2, RB1, RB1;
+ vpshufb RTMP2, RB2, RB2;
+ vpshufb RTMP2, RB3, RB3;
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(__sm4_crypt_blk16)
+
+#define inc_le128(x, minus_one, tmp) \
+ vpcmpeqq minus_one, x, tmp; \
+ vpsubq minus_one, x, x; \
+ vpslldq $8, tmp, tmp; \
+ vpsubq tmp, x, x;
+
+/*
+ * void sm4_aesni_avx2_ctr_enc_blk16(const u32 *rk, u8 *dst,
+ * const u8 *src, u8 *iv)
+ */
+SYM_TYPED_FUNC_START(sm4_aesni_avx2_ctr_enc_blk16)
+ /* input:
+ * %rdi: round key array, CTX
+ * %rsi: dst (16 blocks)
+ * %rdx: src (16 blocks)
+ * %rcx: iv (big endian, 128bit)
+ */
+ FRAME_BEGIN
+
+ movq 8(%rcx), %rax;
+ bswapq %rax;
+
+ vzeroupper;
+
+ vbroadcasti128 .Lbswap128_mask rRIP, RTMP3;
+ vpcmpeqd RNOT, RNOT, RNOT;
+ vpsrldq $8, RNOT, RNOT; /* ab: -1:0 ; cd: -1:0 */
+ vpaddq RNOT, RNOT, RTMP2; /* ab: -2:0 ; cd: -2:0 */
+
+ /* load IV and byteswap */
+ vmovdqu (%rcx), RTMP4x;
+ vpshufb RTMP3x, RTMP4x, RTMP4x;
+ vmovdqa RTMP4x, RTMP0x;
+ inc_le128(RTMP4x, RNOTx, RTMP1x);
+ vinserti128 $1, RTMP4x, RTMP0, RTMP0;
+ vpshufb RTMP3, RTMP0, RA0; /* +1 ; +0 */
+
+ /* check need for handling 64-bit overflow and carry */
+ cmpq $(0xffffffffffffffff - 16), %rax;
+ ja .Lhandle_ctr_carry;
+
+ /* construct IVs */
+ vpsubq RTMP2, RTMP0, RTMP0; /* +3 ; +2 */
+ vpshufb RTMP3, RTMP0, RA1;
+ vpsubq RTMP2, RTMP0, RTMP0; /* +5 ; +4 */
+ vpshufb RTMP3, RTMP0, RA2;
+ vpsubq RTMP2, RTMP0, RTMP0; /* +7 ; +6 */
+ vpshufb RTMP3, RTMP0, RA3;
+ vpsubq RTMP2, RTMP0, RTMP0; /* +9 ; +8 */
+ vpshufb RTMP3, RTMP0, RB0;
+ vpsubq RTMP2, RTMP0, RTMP0; /* +11 ; +10 */
+ vpshufb RTMP3, RTMP0, RB1;
+ vpsubq RTMP2, RTMP0, RTMP0; /* +13 ; +12 */
+ vpshufb RTMP3, RTMP0, RB2;
+ vpsubq RTMP2, RTMP0, RTMP0; /* +15 ; +14 */
+ vpshufb RTMP3, RTMP0, RB3;
+ vpsubq RTMP2, RTMP0, RTMP0; /* +16 */
+ vpshufb RTMP3x, RTMP0x, RTMP0x;
+
+ jmp .Lctr_carry_done;
+
+.Lhandle_ctr_carry:
+ /* construct IVs */
+ inc_le128(RTMP0, RNOT, RTMP1);
+ inc_le128(RTMP0, RNOT, RTMP1);
+ vpshufb RTMP3, RTMP0, RA1; /* +3 ; +2 */
+ inc_le128(RTMP0, RNOT, RTMP1);
+ inc_le128(RTMP0, RNOT, RTMP1);
+ vpshufb RTMP3, RTMP0, RA2; /* +5 ; +4 */
+ inc_le128(RTMP0, RNOT, RTMP1);
+ inc_le128(RTMP0, RNOT, RTMP1);
+ vpshufb RTMP3, RTMP0, RA3; /* +7 ; +6 */
+ inc_le128(RTMP0, RNOT, RTMP1);
+ inc_le128(RTMP0, RNOT, RTMP1);
+ vpshufb RTMP3, RTMP0, RB0; /* +9 ; +8 */
+ inc_le128(RTMP0, RNOT, RTMP1);
+ inc_le128(RTMP0, RNOT, RTMP1);
+ vpshufb RTMP3, RTMP0, RB1; /* +11 ; +10 */
+ inc_le128(RTMP0, RNOT, RTMP1);
+ inc_le128(RTMP0, RNOT, RTMP1);
+ vpshufb RTMP3, RTMP0, RB2; /* +13 ; +12 */
+ inc_le128(RTMP0, RNOT, RTMP1);
+ inc_le128(RTMP0, RNOT, RTMP1);
+ vpshufb RTMP3, RTMP0, RB3; /* +15 ; +14 */
+ inc_le128(RTMP0, RNOT, RTMP1);
+ vextracti128 $1, RTMP0, RTMP0x;
+ vpshufb RTMP3x, RTMP0x, RTMP0x; /* +16 */
+
+.align 4
+.Lctr_carry_done:
+ /* store new IV */
+ vmovdqu RTMP0x, (%rcx);
+
+ call __sm4_crypt_blk16;
+
+ vpxor (0 * 32)(%rdx), RA0, RA0;
+ vpxor (1 * 32)(%rdx), RA1, RA1;
+ vpxor (2 * 32)(%rdx), RA2, RA2;
+ vpxor (3 * 32)(%rdx), RA3, RA3;
+ vpxor (4 * 32)(%rdx), RB0, RB0;
+ vpxor (5 * 32)(%rdx), RB1, RB1;
+ vpxor (6 * 32)(%rdx), RB2, RB2;
+ vpxor (7 * 32)(%rdx), RB3, RB3;
+
+ vmovdqu RA0, (0 * 32)(%rsi);
+ vmovdqu RA1, (1 * 32)(%rsi);
+ vmovdqu RA2, (2 * 32)(%rsi);
+ vmovdqu RA3, (3 * 32)(%rsi);
+ vmovdqu RB0, (4 * 32)(%rsi);
+ vmovdqu RB1, (5 * 32)(%rsi);
+ vmovdqu RB2, (6 * 32)(%rsi);
+ vmovdqu RB3, (7 * 32)(%rsi);
+
+ vzeroall;
+ FRAME_END
+ RET;
+SYM_FUNC_END(sm4_aesni_avx2_ctr_enc_blk16)
+
+/*
+ * void sm4_aesni_avx2_cbc_dec_blk16(const u32 *rk, u8 *dst,
+ * const u8 *src, u8 *iv)
+ */
+SYM_TYPED_FUNC_START(sm4_aesni_avx2_cbc_dec_blk16)
+ /* input:
+ * %rdi: round key array, CTX
+ * %rsi: dst (16 blocks)
+ * %rdx: src (16 blocks)
+ * %rcx: iv
+ */
+ FRAME_BEGIN
+
+ vzeroupper;
+
+ vmovdqu (0 * 32)(%rdx), RA0;
+ vmovdqu (1 * 32)(%rdx), RA1;
+ vmovdqu (2 * 32)(%rdx), RA2;
+ vmovdqu (3 * 32)(%rdx), RA3;
+ vmovdqu (4 * 32)(%rdx), RB0;
+ vmovdqu (5 * 32)(%rdx), RB1;
+ vmovdqu (6 * 32)(%rdx), RB2;
+ vmovdqu (7 * 32)(%rdx), RB3;
+
+ call __sm4_crypt_blk16;
+
+ vmovdqu (%rcx), RNOTx;
+ vinserti128 $1, (%rdx), RNOT, RNOT;
+ vpxor RNOT, RA0, RA0;
+ vpxor (0 * 32 + 16)(%rdx), RA1, RA1;
+ vpxor (1 * 32 + 16)(%rdx), RA2, RA2;
+ vpxor (2 * 32 + 16)(%rdx), RA3, RA3;
+ vpxor (3 * 32 + 16)(%rdx), RB0, RB0;
+ vpxor (4 * 32 + 16)(%rdx), RB1, RB1;
+ vpxor (5 * 32 + 16)(%rdx), RB2, RB2;
+ vpxor (6 * 32 + 16)(%rdx), RB3, RB3;
+ vmovdqu (7 * 32 + 16)(%rdx), RNOTx;
+ vmovdqu RNOTx, (%rcx); /* store new IV */
+
+ vmovdqu RA0, (0 * 32)(%rsi);
+ vmovdqu RA1, (1 * 32)(%rsi);
+ vmovdqu RA2, (2 * 32)(%rsi);
+ vmovdqu RA3, (3 * 32)(%rsi);
+ vmovdqu RB0, (4 * 32)(%rsi);
+ vmovdqu RB1, (5 * 32)(%rsi);
+ vmovdqu RB2, (6 * 32)(%rsi);
+ vmovdqu RB3, (7 * 32)(%rsi);
+
+ vzeroall;
+ FRAME_END
+ RET;
+SYM_FUNC_END(sm4_aesni_avx2_cbc_dec_blk16)
+
+/*
+ * void sm4_aesni_avx2_cfb_dec_blk16(const u32 *rk, u8 *dst,
+ * const u8 *src, u8 *iv)
+ */
+SYM_TYPED_FUNC_START(sm4_aesni_avx2_cfb_dec_blk16)
+ /* input:
+ * %rdi: round key array, CTX
+ * %rsi: dst (16 blocks)
+ * %rdx: src (16 blocks)
+ * %rcx: iv
+ */
+ FRAME_BEGIN
+
+ vzeroupper;
+
+ /* Load input */
+ vmovdqu (%rcx), RNOTx;
+ vinserti128 $1, (%rdx), RNOT, RA0;
+ vmovdqu (0 * 32 + 16)(%rdx), RA1;
+ vmovdqu (1 * 32 + 16)(%rdx), RA2;
+ vmovdqu (2 * 32 + 16)(%rdx), RA3;
+ vmovdqu (3 * 32 + 16)(%rdx), RB0;
+ vmovdqu (4 * 32 + 16)(%rdx), RB1;
+ vmovdqu (5 * 32 + 16)(%rdx), RB2;
+ vmovdqu (6 * 32 + 16)(%rdx), RB3;
+
+ /* Update IV */
+ vmovdqu (7 * 32 + 16)(%rdx), RNOTx;
+ vmovdqu RNOTx, (%rcx);
+
+ call __sm4_crypt_blk16;
+
+ vpxor (0 * 32)(%rdx), RA0, RA0;
+ vpxor (1 * 32)(%rdx), RA1, RA1;
+ vpxor (2 * 32)(%rdx), RA2, RA2;
+ vpxor (3 * 32)(%rdx), RA3, RA3;
+ vpxor (4 * 32)(%rdx), RB0, RB0;
+ vpxor (5 * 32)(%rdx), RB1, RB1;
+ vpxor (6 * 32)(%rdx), RB2, RB2;
+ vpxor (7 * 32)(%rdx), RB3, RB3;
+
+ vmovdqu RA0, (0 * 32)(%rsi);
+ vmovdqu RA1, (1 * 32)(%rsi);
+ vmovdqu RA2, (2 * 32)(%rsi);
+ vmovdqu RA3, (3 * 32)(%rsi);
+ vmovdqu RB0, (4 * 32)(%rsi);
+ vmovdqu RB1, (5 * 32)(%rsi);
+ vmovdqu RB2, (6 * 32)(%rsi);
+ vmovdqu RB3, (7 * 32)(%rsi);
+
+ vzeroall;
+ FRAME_END
+ RET;
+SYM_FUNC_END(sm4_aesni_avx2_cfb_dec_blk16)
diff --git a/arch/x86/crypto/sm4-avx.h b/arch/x86/crypto/sm4-avx.h
new file mode 100644
index 000000000000..1bceab7516aa
--- /dev/null
+++ b/arch/x86/crypto/sm4-avx.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef ASM_X86_SM4_AVX_H
+#define ASM_X86_SM4_AVX_H
+
+#include <linux/types.h>
+#include <crypto/sm4.h>
+
+typedef void (*sm4_crypt_func)(const u32 *rk, u8 *dst, const u8 *src, u8 *iv);
+
+int sm4_avx_ecb_encrypt(struct skcipher_request *req);
+int sm4_avx_ecb_decrypt(struct skcipher_request *req);
+
+int sm4_cbc_encrypt(struct skcipher_request *req);
+int sm4_avx_cbc_decrypt(struct skcipher_request *req,
+ unsigned int bsize, sm4_crypt_func func);
+
+int sm4_cfb_encrypt(struct skcipher_request *req);
+int sm4_avx_cfb_decrypt(struct skcipher_request *req,
+ unsigned int bsize, sm4_crypt_func func);
+
+int sm4_avx_ctr_crypt(struct skcipher_request *req,
+ unsigned int bsize, sm4_crypt_func func);
+
+#endif
diff --git a/arch/x86/crypto/sm4_aesni_avx2_glue.c b/arch/x86/crypto/sm4_aesni_avx2_glue.c
new file mode 100644
index 000000000000..84bc718f49a3
--- /dev/null
+++ b/arch/x86/crypto/sm4_aesni_avx2_glue.c
@@ -0,0 +1,169 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SM4 Cipher Algorithm, AES-NI/AVX2 optimized.
+ * as specified in
+ * https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html
+ *
+ * Copyright (c) 2021, Alibaba Group.
+ * Copyright (c) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <asm/simd.h>
+#include <crypto/internal/simd.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/sm4.h>
+#include "sm4-avx.h"
+
+#define SM4_CRYPT16_BLOCK_SIZE (SM4_BLOCK_SIZE * 16)
+
+asmlinkage void sm4_aesni_avx2_ctr_enc_blk16(const u32 *rk, u8 *dst,
+ const u8 *src, u8 *iv);
+asmlinkage void sm4_aesni_avx2_cbc_dec_blk16(const u32 *rk, u8 *dst,
+ const u8 *src, u8 *iv);
+asmlinkage void sm4_aesni_avx2_cfb_dec_blk16(const u32 *rk, u8 *dst,
+ const u8 *src, u8 *iv);
+
+static int sm4_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int key_len)
+{
+ struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return sm4_expandkey(ctx, key, key_len);
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ return sm4_avx_cbc_decrypt(req, SM4_CRYPT16_BLOCK_SIZE,
+ sm4_aesni_avx2_cbc_dec_blk16);
+}
+
+
+static int cfb_decrypt(struct skcipher_request *req)
+{
+ return sm4_avx_cfb_decrypt(req, SM4_CRYPT16_BLOCK_SIZE,
+ sm4_aesni_avx2_cfb_dec_blk16);
+}
+
+static int ctr_crypt(struct skcipher_request *req)
+{
+ return sm4_avx_ctr_crypt(req, SM4_CRYPT16_BLOCK_SIZE,
+ sm4_aesni_avx2_ctr_enc_blk16);
+}
+
+static struct skcipher_alg sm4_aesni_avx2_skciphers[] = {
+ {
+ .base = {
+ .cra_name = "__ecb(sm4)",
+ .cra_driver_name = "__ecb-sm4-aesni-avx2",
+ .cra_priority = 500,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = SM4_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct sm4_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .walksize = 16 * SM4_BLOCK_SIZE,
+ .setkey = sm4_skcipher_setkey,
+ .encrypt = sm4_avx_ecb_encrypt,
+ .decrypt = sm4_avx_ecb_decrypt,
+ }, {
+ .base = {
+ .cra_name = "__cbc(sm4)",
+ .cra_driver_name = "__cbc-sm4-aesni-avx2",
+ .cra_priority = 500,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = SM4_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct sm4_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .ivsize = SM4_BLOCK_SIZE,
+ .walksize = 16 * SM4_BLOCK_SIZE,
+ .setkey = sm4_skcipher_setkey,
+ .encrypt = sm4_cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ }, {
+ .base = {
+ .cra_name = "__cfb(sm4)",
+ .cra_driver_name = "__cfb-sm4-aesni-avx2",
+ .cra_priority = 500,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct sm4_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .ivsize = SM4_BLOCK_SIZE,
+ .chunksize = SM4_BLOCK_SIZE,
+ .walksize = 16 * SM4_BLOCK_SIZE,
+ .setkey = sm4_skcipher_setkey,
+ .encrypt = sm4_cfb_encrypt,
+ .decrypt = cfb_decrypt,
+ }, {
+ .base = {
+ .cra_name = "__ctr(sm4)",
+ .cra_driver_name = "__ctr-sm4-aesni-avx2",
+ .cra_priority = 500,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct sm4_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .ivsize = SM4_BLOCK_SIZE,
+ .chunksize = SM4_BLOCK_SIZE,
+ .walksize = 16 * SM4_BLOCK_SIZE,
+ .setkey = sm4_skcipher_setkey,
+ .encrypt = ctr_crypt,
+ .decrypt = ctr_crypt,
+ }
+};
+
+static struct simd_skcipher_alg *
+simd_sm4_aesni_avx2_skciphers[ARRAY_SIZE(sm4_aesni_avx2_skciphers)];
+
+static int __init sm4_init(void)
+{
+ const char *feature_name;
+
+ if (!boot_cpu_has(X86_FEATURE_AVX) ||
+ !boot_cpu_has(X86_FEATURE_AVX2) ||
+ !boot_cpu_has(X86_FEATURE_AES) ||
+ !boot_cpu_has(X86_FEATURE_OSXSAVE)) {
+ pr_info("AVX2 or AES-NI instructions are not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ return simd_register_skciphers_compat(sm4_aesni_avx2_skciphers,
+ ARRAY_SIZE(sm4_aesni_avx2_skciphers),
+ simd_sm4_aesni_avx2_skciphers);
+}
+
+static void __exit sm4_exit(void)
+{
+ simd_unregister_skciphers(sm4_aesni_avx2_skciphers,
+ ARRAY_SIZE(sm4_aesni_avx2_skciphers),
+ simd_sm4_aesni_avx2_skciphers);
+}
+
+module_init(sm4_init);
+module_exit(sm4_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Tianjia Zhang <tianjia.zhang@linux.alibaba.com>");
+MODULE_DESCRIPTION("SM4 Cipher Algorithm, AES-NI/AVX2 optimized");
+MODULE_ALIAS_CRYPTO("sm4");
+MODULE_ALIAS_CRYPTO("sm4-aesni-avx2");
diff --git a/arch/x86/crypto/sm4_aesni_avx_glue.c b/arch/x86/crypto/sm4_aesni_avx_glue.c
new file mode 100644
index 000000000000..7800f77d68ad
--- /dev/null
+++ b/arch/x86/crypto/sm4_aesni_avx_glue.c
@@ -0,0 +1,487 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * SM4 Cipher Algorithm, AES-NI/AVX optimized.
+ * as specified in
+ * https://tools.ietf.org/id/draft-ribose-cfrg-sm4-10.html
+ *
+ * Copyright (c) 2021, Alibaba Group.
+ * Copyright (c) 2021 Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
+ */
+
+#include <linux/module.h>
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <asm/simd.h>
+#include <crypto/internal/simd.h>
+#include <crypto/internal/skcipher.h>
+#include <crypto/sm4.h>
+#include "sm4-avx.h"
+
+#define SM4_CRYPT8_BLOCK_SIZE (SM4_BLOCK_SIZE * 8)
+
+asmlinkage void sm4_aesni_avx_crypt4(const u32 *rk, u8 *dst,
+ const u8 *src, int nblocks);
+asmlinkage void sm4_aesni_avx_crypt8(const u32 *rk, u8 *dst,
+ const u8 *src, int nblocks);
+asmlinkage void sm4_aesni_avx_ctr_enc_blk8(const u32 *rk, u8 *dst,
+ const u8 *src, u8 *iv);
+asmlinkage void sm4_aesni_avx_cbc_dec_blk8(const u32 *rk, u8 *dst,
+ const u8 *src, u8 *iv);
+asmlinkage void sm4_aesni_avx_cfb_dec_blk8(const u32 *rk, u8 *dst,
+ const u8 *src, u8 *iv);
+
+static int sm4_skcipher_setkey(struct crypto_skcipher *tfm, const u8 *key,
+ unsigned int key_len)
+{
+ struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return sm4_expandkey(ctx, key, key_len);
+}
+
+static int ecb_do_crypt(struct skcipher_request *req, const u32 *rkey)
+{
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((nbytes = walk.nbytes) > 0) {
+ const u8 *src = walk.src.virt.addr;
+ u8 *dst = walk.dst.virt.addr;
+
+ kernel_fpu_begin();
+ while (nbytes >= SM4_CRYPT8_BLOCK_SIZE) {
+ sm4_aesni_avx_crypt8(rkey, dst, src, 8);
+ dst += SM4_CRYPT8_BLOCK_SIZE;
+ src += SM4_CRYPT8_BLOCK_SIZE;
+ nbytes -= SM4_CRYPT8_BLOCK_SIZE;
+ }
+ while (nbytes >= SM4_BLOCK_SIZE) {
+ unsigned int nblocks = min(nbytes >> 4, 4u);
+ sm4_aesni_avx_crypt4(rkey, dst, src, nblocks);
+ dst += nblocks * SM4_BLOCK_SIZE;
+ src += nblocks * SM4_BLOCK_SIZE;
+ nbytes -= nblocks * SM4_BLOCK_SIZE;
+ }
+ kernel_fpu_end();
+
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+
+int sm4_avx_ecb_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return ecb_do_crypt(req, ctx->rkey_enc);
+}
+EXPORT_SYMBOL_GPL(sm4_avx_ecb_encrypt);
+
+int sm4_avx_ecb_decrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+
+ return ecb_do_crypt(req, ctx->rkey_dec);
+}
+EXPORT_SYMBOL_GPL(sm4_avx_ecb_decrypt);
+
+int sm4_cbc_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((nbytes = walk.nbytes) > 0) {
+ const u8 *iv = walk.iv;
+ const u8 *src = walk.src.virt.addr;
+ u8 *dst = walk.dst.virt.addr;
+
+ while (nbytes >= SM4_BLOCK_SIZE) {
+ crypto_xor_cpy(dst, src, iv, SM4_BLOCK_SIZE);
+ sm4_crypt_block(ctx->rkey_enc, dst, dst);
+ iv = dst;
+ src += SM4_BLOCK_SIZE;
+ dst += SM4_BLOCK_SIZE;
+ nbytes -= SM4_BLOCK_SIZE;
+ }
+ if (iv != walk.iv)
+ memcpy(walk.iv, iv, SM4_BLOCK_SIZE);
+
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(sm4_cbc_encrypt);
+
+int sm4_avx_cbc_decrypt(struct skcipher_request *req,
+ unsigned int bsize, sm4_crypt_func func)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((nbytes = walk.nbytes) > 0) {
+ const u8 *src = walk.src.virt.addr;
+ u8 *dst = walk.dst.virt.addr;
+
+ kernel_fpu_begin();
+
+ while (nbytes >= bsize) {
+ func(ctx->rkey_dec, dst, src, walk.iv);
+ dst += bsize;
+ src += bsize;
+ nbytes -= bsize;
+ }
+
+ while (nbytes >= SM4_BLOCK_SIZE) {
+ u8 keystream[SM4_BLOCK_SIZE * 8];
+ u8 iv[SM4_BLOCK_SIZE];
+ unsigned int nblocks = min(nbytes >> 4, 8u);
+ int i;
+
+ sm4_aesni_avx_crypt8(ctx->rkey_dec, keystream,
+ src, nblocks);
+
+ src += ((int)nblocks - 2) * SM4_BLOCK_SIZE;
+ dst += (nblocks - 1) * SM4_BLOCK_SIZE;
+ memcpy(iv, src + SM4_BLOCK_SIZE, SM4_BLOCK_SIZE);
+
+ for (i = nblocks - 1; i > 0; i--) {
+ crypto_xor_cpy(dst, src,
+ &keystream[i * SM4_BLOCK_SIZE],
+ SM4_BLOCK_SIZE);
+ src -= SM4_BLOCK_SIZE;
+ dst -= SM4_BLOCK_SIZE;
+ }
+ crypto_xor_cpy(dst, walk.iv, keystream, SM4_BLOCK_SIZE);
+ memcpy(walk.iv, iv, SM4_BLOCK_SIZE);
+ dst += nblocks * SM4_BLOCK_SIZE;
+ src += (nblocks + 1) * SM4_BLOCK_SIZE;
+ nbytes -= nblocks * SM4_BLOCK_SIZE;
+ }
+
+ kernel_fpu_end();
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(sm4_avx_cbc_decrypt);
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ return sm4_avx_cbc_decrypt(req, SM4_CRYPT8_BLOCK_SIZE,
+ sm4_aesni_avx_cbc_dec_blk8);
+}
+
+int sm4_cfb_encrypt(struct skcipher_request *req)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((nbytes = walk.nbytes) > 0) {
+ u8 keystream[SM4_BLOCK_SIZE];
+ const u8 *iv = walk.iv;
+ const u8 *src = walk.src.virt.addr;
+ u8 *dst = walk.dst.virt.addr;
+
+ while (nbytes >= SM4_BLOCK_SIZE) {
+ sm4_crypt_block(ctx->rkey_enc, keystream, iv);
+ crypto_xor_cpy(dst, src, keystream, SM4_BLOCK_SIZE);
+ iv = dst;
+ src += SM4_BLOCK_SIZE;
+ dst += SM4_BLOCK_SIZE;
+ nbytes -= SM4_BLOCK_SIZE;
+ }
+ if (iv != walk.iv)
+ memcpy(walk.iv, iv, SM4_BLOCK_SIZE);
+
+ /* tail */
+ if (walk.nbytes == walk.total && nbytes > 0) {
+ sm4_crypt_block(ctx->rkey_enc, keystream, walk.iv);
+ crypto_xor_cpy(dst, src, keystream, nbytes);
+ nbytes = 0;
+ }
+
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(sm4_cfb_encrypt);
+
+int sm4_avx_cfb_decrypt(struct skcipher_request *req,
+ unsigned int bsize, sm4_crypt_func func)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((nbytes = walk.nbytes) > 0) {
+ const u8 *src = walk.src.virt.addr;
+ u8 *dst = walk.dst.virt.addr;
+
+ kernel_fpu_begin();
+
+ while (nbytes >= bsize) {
+ func(ctx->rkey_enc, dst, src, walk.iv);
+ dst += bsize;
+ src += bsize;
+ nbytes -= bsize;
+ }
+
+ while (nbytes >= SM4_BLOCK_SIZE) {
+ u8 keystream[SM4_BLOCK_SIZE * 8];
+ unsigned int nblocks = min(nbytes >> 4, 8u);
+
+ memcpy(keystream, walk.iv, SM4_BLOCK_SIZE);
+ if (nblocks > 1)
+ memcpy(&keystream[SM4_BLOCK_SIZE], src,
+ (nblocks - 1) * SM4_BLOCK_SIZE);
+ memcpy(walk.iv, src + (nblocks - 1) * SM4_BLOCK_SIZE,
+ SM4_BLOCK_SIZE);
+
+ sm4_aesni_avx_crypt8(ctx->rkey_enc, keystream,
+ keystream, nblocks);
+
+ crypto_xor_cpy(dst, src, keystream,
+ nblocks * SM4_BLOCK_SIZE);
+ dst += nblocks * SM4_BLOCK_SIZE;
+ src += nblocks * SM4_BLOCK_SIZE;
+ nbytes -= nblocks * SM4_BLOCK_SIZE;
+ }
+
+ kernel_fpu_end();
+
+ /* tail */
+ if (walk.nbytes == walk.total && nbytes > 0) {
+ u8 keystream[SM4_BLOCK_SIZE];
+
+ sm4_crypt_block(ctx->rkey_enc, keystream, walk.iv);
+ crypto_xor_cpy(dst, src, keystream, nbytes);
+ nbytes = 0;
+ }
+
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(sm4_avx_cfb_decrypt);
+
+static int cfb_decrypt(struct skcipher_request *req)
+{
+ return sm4_avx_cfb_decrypt(req, SM4_CRYPT8_BLOCK_SIZE,
+ sm4_aesni_avx_cfb_dec_blk8);
+}
+
+int sm4_avx_ctr_crypt(struct skcipher_request *req,
+ unsigned int bsize, sm4_crypt_func func)
+{
+ struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
+ struct sm4_ctx *ctx = crypto_skcipher_ctx(tfm);
+ struct skcipher_walk walk;
+ unsigned int nbytes;
+ int err;
+
+ err = skcipher_walk_virt(&walk, req, false);
+
+ while ((nbytes = walk.nbytes) > 0) {
+ const u8 *src = walk.src.virt.addr;
+ u8 *dst = walk.dst.virt.addr;
+
+ kernel_fpu_begin();
+
+ while (nbytes >= bsize) {
+ func(ctx->rkey_enc, dst, src, walk.iv);
+ dst += bsize;
+ src += bsize;
+ nbytes -= bsize;
+ }
+
+ while (nbytes >= SM4_BLOCK_SIZE) {
+ u8 keystream[SM4_BLOCK_SIZE * 8];
+ unsigned int nblocks = min(nbytes >> 4, 8u);
+ int i;
+
+ for (i = 0; i < nblocks; i++) {
+ memcpy(&keystream[i * SM4_BLOCK_SIZE],
+ walk.iv, SM4_BLOCK_SIZE);
+ crypto_inc(walk.iv, SM4_BLOCK_SIZE);
+ }
+ sm4_aesni_avx_crypt8(ctx->rkey_enc, keystream,
+ keystream, nblocks);
+
+ crypto_xor_cpy(dst, src, keystream,
+ nblocks * SM4_BLOCK_SIZE);
+ dst += nblocks * SM4_BLOCK_SIZE;
+ src += nblocks * SM4_BLOCK_SIZE;
+ nbytes -= nblocks * SM4_BLOCK_SIZE;
+ }
+
+ kernel_fpu_end();
+
+ /* tail */
+ if (walk.nbytes == walk.total && nbytes > 0) {
+ u8 keystream[SM4_BLOCK_SIZE];
+
+ memcpy(keystream, walk.iv, SM4_BLOCK_SIZE);
+ crypto_inc(walk.iv, SM4_BLOCK_SIZE);
+
+ sm4_crypt_block(ctx->rkey_enc, keystream, keystream);
+
+ crypto_xor_cpy(dst, src, keystream, nbytes);
+ dst += nbytes;
+ src += nbytes;
+ nbytes = 0;
+ }
+
+ err = skcipher_walk_done(&walk, nbytes);
+ }
+
+ return err;
+}
+EXPORT_SYMBOL_GPL(sm4_avx_ctr_crypt);
+
+static int ctr_crypt(struct skcipher_request *req)
+{
+ return sm4_avx_ctr_crypt(req, SM4_CRYPT8_BLOCK_SIZE,
+ sm4_aesni_avx_ctr_enc_blk8);
+}
+
+static struct skcipher_alg sm4_aesni_avx_skciphers[] = {
+ {
+ .base = {
+ .cra_name = "__ecb(sm4)",
+ .cra_driver_name = "__ecb-sm4-aesni-avx",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = SM4_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct sm4_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .walksize = 8 * SM4_BLOCK_SIZE,
+ .setkey = sm4_skcipher_setkey,
+ .encrypt = sm4_avx_ecb_encrypt,
+ .decrypt = sm4_avx_ecb_decrypt,
+ }, {
+ .base = {
+ .cra_name = "__cbc(sm4)",
+ .cra_driver_name = "__cbc-sm4-aesni-avx",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = SM4_BLOCK_SIZE,
+ .cra_ctxsize = sizeof(struct sm4_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .ivsize = SM4_BLOCK_SIZE,
+ .walksize = 8 * SM4_BLOCK_SIZE,
+ .setkey = sm4_skcipher_setkey,
+ .encrypt = sm4_cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ }, {
+ .base = {
+ .cra_name = "__cfb(sm4)",
+ .cra_driver_name = "__cfb-sm4-aesni-avx",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct sm4_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .ivsize = SM4_BLOCK_SIZE,
+ .chunksize = SM4_BLOCK_SIZE,
+ .walksize = 8 * SM4_BLOCK_SIZE,
+ .setkey = sm4_skcipher_setkey,
+ .encrypt = sm4_cfb_encrypt,
+ .decrypt = cfb_decrypt,
+ }, {
+ .base = {
+ .cra_name = "__ctr(sm4)",
+ .cra_driver_name = "__ctr-sm4-aesni-avx",
+ .cra_priority = 400,
+ .cra_flags = CRYPTO_ALG_INTERNAL,
+ .cra_blocksize = 1,
+ .cra_ctxsize = sizeof(struct sm4_ctx),
+ .cra_module = THIS_MODULE,
+ },
+ .min_keysize = SM4_KEY_SIZE,
+ .max_keysize = SM4_KEY_SIZE,
+ .ivsize = SM4_BLOCK_SIZE,
+ .chunksize = SM4_BLOCK_SIZE,
+ .walksize = 8 * SM4_BLOCK_SIZE,
+ .setkey = sm4_skcipher_setkey,
+ .encrypt = ctr_crypt,
+ .decrypt = ctr_crypt,
+ }
+};
+
+static struct simd_skcipher_alg *
+simd_sm4_aesni_avx_skciphers[ARRAY_SIZE(sm4_aesni_avx_skciphers)];
+
+static int __init sm4_init(void)
+{
+ const char *feature_name;
+
+ if (!boot_cpu_has(X86_FEATURE_AVX) ||
+ !boot_cpu_has(X86_FEATURE_AES) ||
+ !boot_cpu_has(X86_FEATURE_OSXSAVE)) {
+ pr_info("AVX or AES-NI instructions are not detected.\n");
+ return -ENODEV;
+ }
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM,
+ &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ return simd_register_skciphers_compat(sm4_aesni_avx_skciphers,
+ ARRAY_SIZE(sm4_aesni_avx_skciphers),
+ simd_sm4_aesni_avx_skciphers);
+}
+
+static void __exit sm4_exit(void)
+{
+ simd_unregister_skciphers(sm4_aesni_avx_skciphers,
+ ARRAY_SIZE(sm4_aesni_avx_skciphers),
+ simd_sm4_aesni_avx_skciphers);
+}
+
+module_init(sm4_init);
+module_exit(sm4_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Tianjia Zhang <tianjia.zhang@linux.alibaba.com>");
+MODULE_DESCRIPTION("SM4 Cipher Algorithm, AES-NI/AVX optimized");
+MODULE_ALIAS_CRYPTO("sm4");
+MODULE_ALIAS_CRYPTO("sm4-aesni-avx");
diff --git a/arch/x86/crypto/twofish-avx-x86_64-asm_64.S b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
new file mode 100644
index 000000000000..12fde271cd3f
--- /dev/null
+++ b/arch/x86/crypto/twofish-avx-x86_64-asm_64.S
@@ -0,0 +1,374 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Twofish Cipher 8-way parallel algorithm (AVX/x86_64)
+ *
+ * Copyright (C) 2012 Johannes Goetzfried
+ * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
+ *
+ * Copyright Ā© 2012-2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ */
+
+#include <linux/linkage.h>
+#include <asm/frame.h>
+#include "glue_helper-asm-avx.S"
+
+.file "twofish-avx-x86_64-asm_64.S"
+
+.section .rodata.cst16.bswap128_mask, "aM", @progbits, 16
+.align 16
+.Lbswap128_mask:
+ .byte 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+
+.text
+
+/* structure of crypto context */
+#define s0 0
+#define s1 1024
+#define s2 2048
+#define s3 3072
+#define w 4096
+#define k 4128
+
+/**********************************************************************
+ 8-way AVX twofish
+ **********************************************************************/
+#define CTX %rdi
+
+#define RA1 %xmm0
+#define RB1 %xmm1
+#define RC1 %xmm2
+#define RD1 %xmm3
+
+#define RA2 %xmm4
+#define RB2 %xmm5
+#define RC2 %xmm6
+#define RD2 %xmm7
+
+#define RX0 %xmm8
+#define RY0 %xmm9
+
+#define RX1 %xmm10
+#define RY1 %xmm11
+
+#define RK1 %xmm12
+#define RK2 %xmm13
+
+#define RT %xmm14
+#define RR %xmm15
+
+#define RID1 %r13
+#define RID1d %r13d
+#define RID2 %rsi
+#define RID2d %esi
+
+#define RGI1 %rdx
+#define RGI1bl %dl
+#define RGI1bh %dh
+#define RGI2 %rcx
+#define RGI2bl %cl
+#define RGI2bh %ch
+
+#define RGI3 %rax
+#define RGI3bl %al
+#define RGI3bh %ah
+#define RGI4 %rbx
+#define RGI4bl %bl
+#define RGI4bh %bh
+
+#define RGS1 %r8
+#define RGS1d %r8d
+#define RGS2 %r9
+#define RGS2d %r9d
+#define RGS3 %r10
+#define RGS3d %r10d
+
+
+#define lookup_32bit(t0, t1, t2, t3, src, dst, interleave_op, il_reg) \
+ movzbl src ## bl, RID1d; \
+ movzbl src ## bh, RID2d; \
+ shrq $16, src; \
+ movl t0(CTX, RID1, 4), dst ## d; \
+ movl t1(CTX, RID2, 4), RID2d; \
+ movzbl src ## bl, RID1d; \
+ xorl RID2d, dst ## d; \
+ movzbl src ## bh, RID2d; \
+ interleave_op(il_reg); \
+ xorl t2(CTX, RID1, 4), dst ## d; \
+ xorl t3(CTX, RID2, 4), dst ## d;
+
+#define dummy(d) /* do nothing */
+
+#define shr_next(reg) \
+ shrq $16, reg;
+
+#define G(gi1, gi2, x, t0, t1, t2, t3) \
+ lookup_32bit(t0, t1, t2, t3, ##gi1, RGS1, shr_next, ##gi1); \
+ lookup_32bit(t0, t1, t2, t3, ##gi2, RGS3, shr_next, ##gi2); \
+ \
+ lookup_32bit(t0, t1, t2, t3, ##gi1, RGS2, dummy, none); \
+ shlq $32, RGS2; \
+ orq RGS1, RGS2; \
+ lookup_32bit(t0, t1, t2, t3, ##gi2, RGS1, dummy, none); \
+ shlq $32, RGS1; \
+ orq RGS1, RGS3;
+
+#define round_head_2(a, b, x1, y1, x2, y2) \
+ vmovq b ## 1, RGI3; \
+ vpextrq $1, b ## 1, RGI4; \
+ \
+ G(RGI1, RGI2, x1, s0, s1, s2, s3); \
+ vmovq a ## 2, RGI1; \
+ vpextrq $1, a ## 2, RGI2; \
+ vmovq RGS2, x1; \
+ vpinsrq $1, RGS3, x1, x1; \
+ \
+ G(RGI3, RGI4, y1, s1, s2, s3, s0); \
+ vmovq b ## 2, RGI3; \
+ vpextrq $1, b ## 2, RGI4; \
+ vmovq RGS2, y1; \
+ vpinsrq $1, RGS3, y1, y1; \
+ \
+ G(RGI1, RGI2, x2, s0, s1, s2, s3); \
+ vmovq RGS2, x2; \
+ vpinsrq $1, RGS3, x2, x2; \
+ \
+ G(RGI3, RGI4, y2, s1, s2, s3, s0); \
+ vmovq RGS2, y2; \
+ vpinsrq $1, RGS3, y2, y2;
+
+#define encround_tail(a, b, c, d, x, y, prerotate) \
+ vpaddd x, y, x; \
+ vpaddd x, RK1, RT;\
+ prerotate(b); \
+ vpxor RT, c, c; \
+ vpaddd y, x, y; \
+ vpaddd y, RK2, y; \
+ vpsrld $1, c, RT; \
+ vpslld $(32 - 1), c, c; \
+ vpor c, RT, c; \
+ vpxor d, y, d; \
+
+#define decround_tail(a, b, c, d, x, y, prerotate) \
+ vpaddd x, y, x; \
+ vpaddd x, RK1, RT;\
+ prerotate(a); \
+ vpxor RT, c, c; \
+ vpaddd y, x, y; \
+ vpaddd y, RK2, y; \
+ vpxor d, y, d; \
+ vpsrld $1, d, y; \
+ vpslld $(32 - 1), d, d; \
+ vpor d, y, d; \
+
+#define rotate_1l(x) \
+ vpslld $1, x, RR; \
+ vpsrld $(32 - 1), x, x; \
+ vpor x, RR, x;
+
+#define preload_rgi(c) \
+ vmovq c, RGI1; \
+ vpextrq $1, c, RGI2;
+
+#define encrypt_round(n, a, b, c, d, preload, prerotate) \
+ vbroadcastss (k+4*(2*(n)))(CTX), RK1; \
+ vbroadcastss (k+4*(2*(n)+1))(CTX), RK2; \
+ round_head_2(a, b, RX0, RY0, RX1, RY1); \
+ encround_tail(a ## 1, b ## 1, c ## 1, d ## 1, RX0, RY0, prerotate); \
+ preload(c ## 1); \
+ encround_tail(a ## 2, b ## 2, c ## 2, d ## 2, RX1, RY1, prerotate);
+
+#define decrypt_round(n, a, b, c, d, preload, prerotate) \
+ vbroadcastss (k+4*(2*(n)))(CTX), RK1; \
+ vbroadcastss (k+4*(2*(n)+1))(CTX), RK2; \
+ round_head_2(a, b, RX0, RY0, RX1, RY1); \
+ decround_tail(a ## 1, b ## 1, c ## 1, d ## 1, RX0, RY0, prerotate); \
+ preload(c ## 1); \
+ decround_tail(a ## 2, b ## 2, c ## 2, d ## 2, RX1, RY1, prerotate);
+
+#define encrypt_cycle(n) \
+ encrypt_round((2*n), RA, RB, RC, RD, preload_rgi, rotate_1l); \
+ encrypt_round(((2*n) + 1), RC, RD, RA, RB, preload_rgi, rotate_1l);
+
+#define encrypt_cycle_last(n) \
+ encrypt_round((2*n), RA, RB, RC, RD, preload_rgi, rotate_1l); \
+ encrypt_round(((2*n) + 1), RC, RD, RA, RB, dummy, dummy);
+
+#define decrypt_cycle(n) \
+ decrypt_round(((2*n) + 1), RC, RD, RA, RB, preload_rgi, rotate_1l); \
+ decrypt_round((2*n), RA, RB, RC, RD, preload_rgi, rotate_1l);
+
+#define decrypt_cycle_last(n) \
+ decrypt_round(((2*n) + 1), RC, RD, RA, RB, preload_rgi, rotate_1l); \
+ decrypt_round((2*n), RA, RB, RC, RD, dummy, dummy);
+
+#define transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ vpunpckldq x1, x0, t0; \
+ vpunpckhdq x1, x0, t2; \
+ vpunpckldq x3, x2, t1; \
+ vpunpckhdq x3, x2, x3; \
+ \
+ vpunpcklqdq t1, t0, x0; \
+ vpunpckhqdq t1, t0, x1; \
+ vpunpcklqdq x3, t2, x2; \
+ vpunpckhqdq x3, t2, x3;
+
+#define inpack_blocks(x0, x1, x2, x3, wkey, t0, t1, t2) \
+ vpxor x0, wkey, x0; \
+ vpxor x1, wkey, x1; \
+ vpxor x2, wkey, x2; \
+ vpxor x3, wkey, x3; \
+ \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2)
+
+#define outunpack_blocks(x0, x1, x2, x3, wkey, t0, t1, t2) \
+ transpose_4x4(x0, x1, x2, x3, t0, t1, t2) \
+ \
+ vpxor x0, wkey, x0; \
+ vpxor x1, wkey, x1; \
+ vpxor x2, wkey, x2; \
+ vpxor x3, wkey, x3;
+
+SYM_FUNC_START_LOCAL(__twofish_enc_blk8)
+ /* input:
+ * %rdi: ctx, CTX
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: blocks
+ * output:
+ * RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2: encrypted blocks
+ */
+
+ vmovdqu w(CTX), RK1;
+
+ pushq %r13;
+ pushq %rbx;
+ pushq %rcx;
+
+ inpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
+ preload_rgi(RA1);
+ rotate_1l(RD1);
+ inpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
+ rotate_1l(RD2);
+
+ encrypt_cycle(0);
+ encrypt_cycle(1);
+ encrypt_cycle(2);
+ encrypt_cycle(3);
+ encrypt_cycle(4);
+ encrypt_cycle(5);
+ encrypt_cycle(6);
+ encrypt_cycle_last(7);
+
+ vmovdqu (w+4*4)(CTX), RK1;
+
+ popq %rcx;
+ popq %rbx;
+ popq %r13;
+
+ outunpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
+ outunpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
+
+ RET;
+SYM_FUNC_END(__twofish_enc_blk8)
+
+SYM_FUNC_START_LOCAL(__twofish_dec_blk8)
+ /* input:
+ * %rdi: ctx, CTX
+ * RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2: encrypted blocks
+ * output:
+ * RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2: decrypted blocks
+ */
+
+ vmovdqu (w+4*4)(CTX), RK1;
+
+ pushq %r13;
+ pushq %rbx;
+
+ inpack_blocks(RC1, RD1, RA1, RB1, RK1, RX0, RY0, RK2);
+ preload_rgi(RC1);
+ rotate_1l(RA1);
+ inpack_blocks(RC2, RD2, RA2, RB2, RK1, RX0, RY0, RK2);
+ rotate_1l(RA2);
+
+ decrypt_cycle(7);
+ decrypt_cycle(6);
+ decrypt_cycle(5);
+ decrypt_cycle(4);
+ decrypt_cycle(3);
+ decrypt_cycle(2);
+ decrypt_cycle(1);
+ decrypt_cycle_last(0);
+
+ vmovdqu (w)(CTX), RK1;
+
+ popq %rbx;
+ popq %r13;
+
+ outunpack_blocks(RA1, RB1, RC1, RD1, RK1, RX0, RY0, RK2);
+ outunpack_blocks(RA2, RB2, RC2, RD2, RK1, RX0, RY0, RK2);
+
+ RET;
+SYM_FUNC_END(__twofish_dec_blk8)
+
+SYM_FUNC_START(twofish_ecb_enc_8way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+
+ movq %rsi, %r11;
+
+ load_8way(%rdx, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ call __twofish_enc_blk8;
+
+ store_8way(%r11, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(twofish_ecb_enc_8way)
+
+SYM_FUNC_START(twofish_ecb_dec_8way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+
+ movq %rsi, %r11;
+
+ load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+
+ call __twofish_dec_blk8;
+
+ store_8way(%r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(twofish_ecb_dec_8way)
+
+SYM_FUNC_START(twofish_cbc_dec_8way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src
+ */
+ FRAME_BEGIN
+
+ pushq %r12;
+
+ movq %rsi, %r11;
+ movq %rdx, %r12;
+
+ load_8way(%rdx, RC1, RD1, RA1, RB1, RC2, RD2, RA2, RB2);
+
+ call __twofish_dec_blk8;
+
+ store_cbc_8way(%r12, %r11, RA1, RB1, RC1, RD1, RA2, RB2, RC2, RD2);
+
+ popq %r12;
+
+ FRAME_END
+ RET;
+SYM_FUNC_END(twofish_cbc_dec_8way)
diff --git a/arch/x86/crypto/twofish-i586-asm_32.S b/arch/x86/crypto/twofish-i586-asm_32.S
index 575331cb2a8a..3abcad661884 100644
--- a/arch/x86/crypto/twofish-i586-asm_32.S
+++ b/arch/x86/crypto/twofish-i586-asm_32.S
@@ -1,32 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/***************************************************************************
* Copyright (C) 2006 by Joachim Fritschi, <jfritschi@freenet.de> *
* *
-* This program is free software; you can redistribute it and/or modify *
-* it under the terms of the GNU General Public License as published by *
-* the Free Software Foundation; either version 2 of the License, or *
-* (at your option) any later version. *
-* *
-* This program is distributed in the hope that it will be useful, *
-* but WITHOUT ANY WARRANTY; without even the implied warranty of *
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
-* GNU General Public License for more details. *
-* *
-* You should have received a copy of the GNU General Public License *
-* along with this program; if not, write to the *
-* Free Software Foundation, Inc., *
-* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
.file "twofish-i586-asm.S"
.text
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
/* return address at 0 */
#define in_blk 12 /* input byte array address parameter*/
#define out_blk 8 /* output byte array address parameter*/
-#define tfm 4 /* Twofish context structure */
+#define ctx 4 /* Twofish context structure */
#define a_offset 0
#define b_offset 4
@@ -219,18 +207,14 @@
xor %esi, d ## D;\
ror $1, d ## D;
-.align 4
-.global twofish_enc_blk
-.global twofish_dec_blk
-
-twofish_enc_blk:
+SYM_FUNC_START(twofish_enc_blk)
push %ebp /* save registers according to calling convention*/
push %ebx
push %esi
push %edi
- mov tfm + 16(%esp), %ebp /* abuse the base pointer: set new base bointer to the crypto tfm */
- add $crypto_tfm_ctx_offset, %ebp /* ctx address */
+ mov ctx + 16(%esp), %ebp /* abuse the base pointer: set new base
+ * pointer to the ctx address */
mov in_blk+16(%esp),%edi /* input address in edi */
mov (%edi), %eax
@@ -276,17 +260,18 @@ twofish_enc_blk:
pop %ebx
pop %ebp
mov $1, %eax
- ret
+ RET
+SYM_FUNC_END(twofish_enc_blk)
-twofish_dec_blk:
+SYM_FUNC_START(twofish_dec_blk)
push %ebp /* save registers according to calling convention*/
push %ebx
push %esi
push %edi
- mov tfm + 16(%esp), %ebp /* abuse the base pointer: set new base bointer to the crypto tfm */
- add $crypto_tfm_ctx_offset, %ebp /* ctx address */
+ mov ctx + 16(%esp), %ebp /* abuse the base pointer: set new base
+ * pointer to the ctx address */
mov in_blk+16(%esp),%edi /* input address in edi */
mov (%edi), %eax
@@ -332,4 +317,5 @@ twofish_dec_blk:
pop %ebx
pop %ebp
mov $1, %eax
- ret
+ RET
+SYM_FUNC_END(twofish_dec_blk)
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64-3way.S b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
new file mode 100644
index 000000000000..d2288bf38a8a
--- /dev/null
+++ b/arch/x86/crypto/twofish-x86_64-asm_64-3way.S
@@ -0,0 +1,305 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Twofish Cipher 3-way parallel algorithm (x86_64)
+ *
+ * Copyright (C) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ */
+
+#include <linux/linkage.h>
+
+.file "twofish-x86_64-asm-3way.S"
+.text
+
+/* structure of crypto context */
+#define s0 0
+#define s1 1024
+#define s2 2048
+#define s3 3072
+#define w 4096
+#define k 4128
+
+/**********************************************************************
+ 3-way twofish
+ **********************************************************************/
+#define CTX %rdi
+#define RIO %rdx
+
+#define RAB0 %rax
+#define RAB1 %rbx
+#define RAB2 %rcx
+
+#define RAB0d %eax
+#define RAB1d %ebx
+#define RAB2d %ecx
+
+#define RAB0bh %ah
+#define RAB1bh %bh
+#define RAB2bh %ch
+
+#define RAB0bl %al
+#define RAB1bl %bl
+#define RAB2bl %cl
+
+#define CD0 0x0(%rsp)
+#define CD1 0x8(%rsp)
+#define CD2 0x10(%rsp)
+
+# used only before/after all rounds
+#define RCD0 %r8
+#define RCD1 %r9
+#define RCD2 %r10
+
+# used only during rounds
+#define RX0 %r8
+#define RX1 %r9
+#define RX2 %r10
+
+#define RX0d %r8d
+#define RX1d %r9d
+#define RX2d %r10d
+
+#define RY0 %r11
+#define RY1 %r12
+#define RY2 %r13
+
+#define RY0d %r11d
+#define RY1d %r12d
+#define RY2d %r13d
+
+#define RT0 %rdx
+#define RT1 %rsi
+
+#define RT0d %edx
+#define RT1d %esi
+
+#define RT1bl %sil
+
+#define do16bit_ror(rot, op1, op2, T0, T1, tmp1, tmp2, ab, dst) \
+ movzbl ab ## bl, tmp2 ## d; \
+ movzbl ab ## bh, tmp1 ## d; \
+ rorq $(rot), ab; \
+ op1##l T0(CTX, tmp2, 4), dst ## d; \
+ op2##l T1(CTX, tmp1, 4), dst ## d;
+
+#define swap_ab_with_cd(ab, cd, tmp) \
+ movq cd, tmp; \
+ movq ab, cd; \
+ movq tmp, ab;
+
+/*
+ * Combined G1 & G2 function. Reordered with help of rotates to have moves
+ * at beginning.
+ */
+#define g1g2_3(ab, cd, Tx0, Tx1, Tx2, Tx3, Ty0, Ty1, Ty2, Ty3, x, y) \
+ /* G1,1 && G2,1 */ \
+ do16bit_ror(32, mov, xor, Tx0, Tx1, RT0, x ## 0, ab ## 0, x ## 0); \
+ do16bit_ror(48, mov, xor, Ty1, Ty2, RT0, y ## 0, ab ## 0, y ## 0); \
+ \
+ do16bit_ror(32, mov, xor, Tx0, Tx1, RT0, x ## 1, ab ## 1, x ## 1); \
+ do16bit_ror(48, mov, xor, Ty1, Ty2, RT0, y ## 1, ab ## 1, y ## 1); \
+ \
+ do16bit_ror(32, mov, xor, Tx0, Tx1, RT0, x ## 2, ab ## 2, x ## 2); \
+ do16bit_ror(48, mov, xor, Ty1, Ty2, RT0, y ## 2, ab ## 2, y ## 2); \
+ \
+ /* G1,2 && G2,2 */ \
+ do16bit_ror(32, xor, xor, Tx2, Tx3, RT0, RT1, ab ## 0, x ## 0); \
+ do16bit_ror(16, xor, xor, Ty3, Ty0, RT0, RT1, ab ## 0, y ## 0); \
+ swap_ab_with_cd(ab ## 0, cd ## 0, RT0); \
+ \
+ do16bit_ror(32, xor, xor, Tx2, Tx3, RT0, RT1, ab ## 1, x ## 1); \
+ do16bit_ror(16, xor, xor, Ty3, Ty0, RT0, RT1, ab ## 1, y ## 1); \
+ swap_ab_with_cd(ab ## 1, cd ## 1, RT0); \
+ \
+ do16bit_ror(32, xor, xor, Tx2, Tx3, RT0, RT1, ab ## 2, x ## 2); \
+ do16bit_ror(16, xor, xor, Ty3, Ty0, RT0, RT1, ab ## 2, y ## 2); \
+ swap_ab_with_cd(ab ## 2, cd ## 2, RT0);
+
+#define enc_round_end(ab, x, y, n) \
+ addl y ## d, x ## d; \
+ addl x ## d, y ## d; \
+ addl k+4*(2*(n))(CTX), x ## d; \
+ xorl ab ## d, x ## d; \
+ addl k+4*(2*(n)+1)(CTX), y ## d; \
+ shrq $32, ab; \
+ roll $1, ab ## d; \
+ xorl y ## d, ab ## d; \
+ shlq $32, ab; \
+ rorl $1, x ## d; \
+ orq x, ab;
+
+#define dec_round_end(ba, x, y, n) \
+ addl y ## d, x ## d; \
+ addl x ## d, y ## d; \
+ addl k+4*(2*(n))(CTX), x ## d; \
+ addl k+4*(2*(n)+1)(CTX), y ## d; \
+ xorl ba ## d, y ## d; \
+ shrq $32, ba; \
+ roll $1, ba ## d; \
+ xorl x ## d, ba ## d; \
+ shlq $32, ba; \
+ rorl $1, y ## d; \
+ orq y, ba;
+
+#define encrypt_round3(ab, cd, n) \
+ g1g2_3(ab, cd, s0, s1, s2, s3, s0, s1, s2, s3, RX, RY); \
+ \
+ enc_round_end(ab ## 0, RX0, RY0, n); \
+ enc_round_end(ab ## 1, RX1, RY1, n); \
+ enc_round_end(ab ## 2, RX2, RY2, n);
+
+#define decrypt_round3(ba, dc, n) \
+ g1g2_3(ba, dc, s1, s2, s3, s0, s3, s0, s1, s2, RY, RX); \
+ \
+ dec_round_end(ba ## 0, RX0, RY0, n); \
+ dec_round_end(ba ## 1, RX1, RY1, n); \
+ dec_round_end(ba ## 2, RX2, RY2, n);
+
+#define encrypt_cycle3(ab, cd, n) \
+ encrypt_round3(ab, cd, n*2); \
+ encrypt_round3(ab, cd, (n*2)+1);
+
+#define decrypt_cycle3(ba, dc, n) \
+ decrypt_round3(ba, dc, (n*2)+1); \
+ decrypt_round3(ba, dc, (n*2));
+
+#define push_cd() \
+ pushq RCD2; \
+ pushq RCD1; \
+ pushq RCD0;
+
+#define pop_cd() \
+ popq RCD0; \
+ popq RCD1; \
+ popq RCD2;
+
+#define inpack3(in, n, xy, m) \
+ movq 4*(n)(in), xy ## 0; \
+ xorq w+4*m(CTX), xy ## 0; \
+ \
+ movq 4*(4+(n))(in), xy ## 1; \
+ xorq w+4*m(CTX), xy ## 1; \
+ \
+ movq 4*(8+(n))(in), xy ## 2; \
+ xorq w+4*m(CTX), xy ## 2;
+
+#define outunpack3(op, out, n, xy, m) \
+ xorq w+4*m(CTX), xy ## 0; \
+ op ## q xy ## 0, 4*(n)(out); \
+ \
+ xorq w+4*m(CTX), xy ## 1; \
+ op ## q xy ## 1, 4*(4+(n))(out); \
+ \
+ xorq w+4*m(CTX), xy ## 2; \
+ op ## q xy ## 2, 4*(8+(n))(out);
+
+#define inpack_enc3() \
+ inpack3(RIO, 0, RAB, 0); \
+ inpack3(RIO, 2, RCD, 2);
+
+#define outunpack_enc3(op) \
+ outunpack3(op, RIO, 2, RAB, 6); \
+ outunpack3(op, RIO, 0, RCD, 4);
+
+#define inpack_dec3() \
+ inpack3(RIO, 0, RAB, 4); \
+ rorq $32, RAB0; \
+ rorq $32, RAB1; \
+ rorq $32, RAB2; \
+ inpack3(RIO, 2, RCD, 6); \
+ rorq $32, RCD0; \
+ rorq $32, RCD1; \
+ rorq $32, RCD2;
+
+#define outunpack_dec3() \
+ rorq $32, RCD0; \
+ rorq $32, RCD1; \
+ rorq $32, RCD2; \
+ outunpack3(mov, RIO, 0, RCD, 0); \
+ rorq $32, RAB0; \
+ rorq $32, RAB1; \
+ rorq $32, RAB2; \
+ outunpack3(mov, RIO, 2, RAB, 2);
+
+SYM_FUNC_START(__twofish_enc_blk_3way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src, RIO
+ * %rcx: bool, if true: xor output
+ */
+ pushq %r13;
+ pushq %r12;
+ pushq %rbx;
+
+ pushq %rcx; /* bool xor */
+ pushq %rsi; /* dst */
+
+ inpack_enc3();
+
+ push_cd();
+ encrypt_cycle3(RAB, CD, 0);
+ encrypt_cycle3(RAB, CD, 1);
+ encrypt_cycle3(RAB, CD, 2);
+ encrypt_cycle3(RAB, CD, 3);
+ encrypt_cycle3(RAB, CD, 4);
+ encrypt_cycle3(RAB, CD, 5);
+ encrypt_cycle3(RAB, CD, 6);
+ encrypt_cycle3(RAB, CD, 7);
+ pop_cd();
+
+ popq RIO; /* dst */
+ popq RT1; /* bool xor */
+
+ testb RT1bl, RT1bl;
+ jnz .L__enc_xor3;
+
+ outunpack_enc3(mov);
+
+ popq %rbx;
+ popq %r12;
+ popq %r13;
+ RET;
+
+.L__enc_xor3:
+ outunpack_enc3(xor);
+
+ popq %rbx;
+ popq %r12;
+ popq %r13;
+ RET;
+SYM_FUNC_END(__twofish_enc_blk_3way)
+
+SYM_FUNC_START(twofish_dec_blk_3way)
+ /* input:
+ * %rdi: ctx, CTX
+ * %rsi: dst
+ * %rdx: src, RIO
+ */
+ pushq %r13;
+ pushq %r12;
+ pushq %rbx;
+
+ pushq %rsi; /* dst */
+
+ inpack_dec3();
+
+ push_cd();
+ decrypt_cycle3(RAB, CD, 7);
+ decrypt_cycle3(RAB, CD, 6);
+ decrypt_cycle3(RAB, CD, 5);
+ decrypt_cycle3(RAB, CD, 4);
+ decrypt_cycle3(RAB, CD, 3);
+ decrypt_cycle3(RAB, CD, 2);
+ decrypt_cycle3(RAB, CD, 1);
+ decrypt_cycle3(RAB, CD, 0);
+ pop_cd();
+
+ popq RIO; /* dst */
+
+ outunpack_dec3();
+
+ popq %rbx;
+ popq %r12;
+ popq %r13;
+ RET;
+SYM_FUNC_END(twofish_dec_blk_3way)
diff --git a/arch/x86/crypto/twofish-x86_64-asm_64.S b/arch/x86/crypto/twofish-x86_64-asm_64.S
index 573aa102542e..775af290cd19 100644
--- a/arch/x86/crypto/twofish-x86_64-asm_64.S
+++ b/arch/x86/crypto/twofish-x86_64-asm_64.S
@@ -1,25 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/***************************************************************************
* Copyright (C) 2006 by Joachim Fritschi, <jfritschi@freenet.de> *
* *
-* This program is free software; you can redistribute it and/or modify *
-* it under the terms of the GNU General Public License as published by *
-* the Free Software Foundation; either version 2 of the License, or *
-* (at your option) any later version. *
-* *
-* This program is distributed in the hope that it will be useful, *
-* but WITHOUT ANY WARRANTY; without even the implied warranty of *
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
-* GNU General Public License for more details. *
-* *
-* You should have received a copy of the GNU General Public License *
-* along with this program; if not, write to the *
-* Free Software Foundation, Inc., *
-* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
.file "twofish-x86_64-asm.S"
.text
+#include <linux/linkage.h>
#include <asm/asm-offsets.h>
#define a_offset 0
@@ -214,17 +202,12 @@
xor %r8d, d ## D;\
ror $1, d ## D;
-.align 8
-.global twofish_enc_blk
-.global twofish_dec_blk
-
-twofish_enc_blk:
+SYM_FUNC_START(twofish_enc_blk)
pushq R1
- /* %rdi contains the crypto tfm address */
+ /* %rdi contains the ctx address */
/* %rsi contains the output address */
/* %rdx contains the input address */
- add $crypto_tfm_ctx_offset, %rdi /* set ctx address */
/* ctx address is moved to free one non-rex register
as target for the 8bit high operations */
mov %rdi, %r11
@@ -268,16 +251,16 @@ twofish_enc_blk:
movq R1, 8(%rsi)
popq R1
- movq $1,%rax
- ret
+ movl $1,%eax
+ RET
+SYM_FUNC_END(twofish_enc_blk)
-twofish_dec_blk:
+SYM_FUNC_START(twofish_dec_blk)
pushq R1
- /* %rdi contains the crypto tfm address */
+ /* %rdi contains the ctx address */
/* %rsi contains the output address */
/* %rdx contains the input address */
- add $crypto_tfm_ctx_offset, %rdi /* set ctx address */
/* ctx address is moved to free one non-rex register
as target for the 8bit high operations */
mov %rdi, %r11
@@ -320,5 +303,6 @@ twofish_dec_blk:
movq R1, 8(%rsi)
popq R1
- movq $1,%rax
- ret
+ movl $1,%eax
+ RET
+SYM_FUNC_END(twofish_dec_blk)
diff --git a/arch/x86/crypto/twofish.h b/arch/x86/crypto/twofish.h
new file mode 100644
index 000000000000..12df400e6d53
--- /dev/null
+++ b/arch/x86/crypto/twofish.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_X86_TWOFISH_H
+#define ASM_X86_TWOFISH_H
+
+#include <linux/crypto.h>
+#include <crypto/twofish.h>
+#include <crypto/b128ops.h>
+
+/* regular block cipher functions from twofish_x86_64 module */
+asmlinkage void twofish_enc_blk(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void twofish_dec_blk(const void *ctx, u8 *dst, const u8 *src);
+
+/* 3-way parallel cipher functions */
+asmlinkage void __twofish_enc_blk_3way(const void *ctx, u8 *dst, const u8 *src,
+ bool xor);
+asmlinkage void twofish_dec_blk_3way(const void *ctx, u8 *dst, const u8 *src);
+
+/* helpers from twofish_x86_64-3way module */
+extern void twofish_dec_blk_cbc_3way(const void *ctx, u8 *dst, const u8 *src);
+
+#endif /* ASM_X86_TWOFISH_H */
diff --git a/arch/x86/crypto/twofish_avx_glue.c b/arch/x86/crypto/twofish_avx_glue.c
new file mode 100644
index 000000000000..3eb3440b477a
--- /dev/null
+++ b/arch/x86/crypto/twofish_avx_glue.c
@@ -0,0 +1,133 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for AVX assembler version of Twofish Cipher
+ *
+ * Copyright (C) 2012 Johannes Goetzfried
+ * <Johannes.Goetzfried@informatik.stud.uni-erlangen.de>
+ *
+ * Copyright Ā© 2013 Jussi Kivilinna <jussi.kivilinna@iki.fi>
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/crypto.h>
+#include <linux/err.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/simd.h>
+#include <crypto/twofish.h>
+
+#include "twofish.h"
+#include "ecb_cbc_helpers.h"
+
+#define TWOFISH_PARALLEL_BLOCKS 8
+
+/* 8-way parallel cipher functions */
+asmlinkage void twofish_ecb_enc_8way(const void *ctx, u8 *dst, const u8 *src);
+asmlinkage void twofish_ecb_dec_8way(const void *ctx, u8 *dst, const u8 *src);
+
+asmlinkage void twofish_cbc_dec_8way(const void *ctx, u8 *dst, const u8 *src);
+
+static int twofish_setkey_skcipher(struct crypto_skcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return twofish_setkey(&tfm->base, key, keylen);
+}
+
+static inline void twofish_enc_blk_3way(const void *ctx, u8 *dst, const u8 *src)
+{
+ __twofish_enc_blk_3way(ctx, dst, src, false);
+}
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, TF_BLOCK_SIZE, TWOFISH_PARALLEL_BLOCKS);
+ ECB_BLOCK(TWOFISH_PARALLEL_BLOCKS, twofish_ecb_enc_8way);
+ ECB_BLOCK(3, twofish_enc_blk_3way);
+ ECB_BLOCK(1, twofish_enc_blk);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, TF_BLOCK_SIZE, TWOFISH_PARALLEL_BLOCKS);
+ ECB_BLOCK(TWOFISH_PARALLEL_BLOCKS, twofish_ecb_dec_8way);
+ ECB_BLOCK(3, twofish_dec_blk_3way);
+ ECB_BLOCK(1, twofish_dec_blk);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, TF_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(twofish_enc_blk);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, TF_BLOCK_SIZE, TWOFISH_PARALLEL_BLOCKS);
+ CBC_DEC_BLOCK(TWOFISH_PARALLEL_BLOCKS, twofish_cbc_dec_8way);
+ CBC_DEC_BLOCK(3, twofish_dec_blk_cbc_3way);
+ CBC_DEC_BLOCK(1, twofish_dec_blk);
+ CBC_WALK_END();
+}
+
+static struct skcipher_alg twofish_algs[] = {
+ {
+ .base.cra_name = "__ecb(twofish)",
+ .base.cra_driver_name = "__ecb-twofish-avx",
+ .base.cra_priority = 400,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = TF_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct twofish_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = TF_MIN_KEY_SIZE,
+ .max_keysize = TF_MAX_KEY_SIZE,
+ .setkey = twofish_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "__cbc(twofish)",
+ .base.cra_driver_name = "__cbc-twofish-avx",
+ .base.cra_priority = 400,
+ .base.cra_flags = CRYPTO_ALG_INTERNAL,
+ .base.cra_blocksize = TF_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct twofish_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = TF_MIN_KEY_SIZE,
+ .max_keysize = TF_MAX_KEY_SIZE,
+ .ivsize = TF_BLOCK_SIZE,
+ .setkey = twofish_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ },
+};
+
+static struct simd_skcipher_alg *twofish_simd_algs[ARRAY_SIZE(twofish_algs)];
+
+static int __init twofish_init(void)
+{
+ const char *feature_name;
+
+ if (!cpu_has_xfeatures(XFEATURE_MASK_SSE | XFEATURE_MASK_YMM, &feature_name)) {
+ pr_info("CPU feature '%s' is not supported.\n", feature_name);
+ return -ENODEV;
+ }
+
+ return simd_register_skciphers_compat(twofish_algs,
+ ARRAY_SIZE(twofish_algs),
+ twofish_simd_algs);
+}
+
+static void __exit twofish_exit(void)
+{
+ simd_unregister_skciphers(twofish_algs, ARRAY_SIZE(twofish_algs),
+ twofish_simd_algs);
+}
+
+module_init(twofish_init);
+module_exit(twofish_exit);
+
+MODULE_DESCRIPTION("Twofish Cipher Algorithm, AVX optimized");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_CRYPTO("twofish");
diff --git a/arch/x86/crypto/twofish_glue.c b/arch/x86/crypto/twofish_glue.c
index cefaf8b9aa18..0614beece279 100644
--- a/arch/x86/crypto/twofish_glue.c
+++ b/arch/x86/crypto/twofish_glue.c
@@ -38,23 +38,27 @@
* Third Edition.
*/
+#include <crypto/algapi.h>
#include <crypto/twofish.h>
-#include <linux/crypto.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/types.h>
-asmlinkage void twofish_enc_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
-asmlinkage void twofish_dec_blk(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
+asmlinkage void twofish_enc_blk(struct twofish_ctx *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(twofish_enc_blk);
+asmlinkage void twofish_dec_blk(struct twofish_ctx *ctx, u8 *dst,
+ const u8 *src);
+EXPORT_SYMBOL_GPL(twofish_dec_blk);
static void twofish_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- twofish_enc_blk(tfm, dst, src);
+ twofish_enc_blk(crypto_tfm_ctx(tfm), dst, src);
}
static void twofish_decrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
{
- twofish_dec_blk(tfm, dst, src);
+ twofish_dec_blk(crypto_tfm_ctx(tfm), dst, src);
}
static struct crypto_alg alg = {
@@ -64,9 +68,8 @@ static struct crypto_alg alg = {
.cra_flags = CRYPTO_ALG_TYPE_CIPHER,
.cra_blocksize = TF_BLOCK_SIZE,
.cra_ctxsize = sizeof(struct twofish_ctx),
- .cra_alignmask = 3,
+ .cra_alignmask = 0,
.cra_module = THIS_MODULE,
- .cra_list = LIST_HEAD_INIT(alg.cra_list),
.cra_u = {
.cipher = {
.cia_min_keysize = TF_MIN_KEY_SIZE,
@@ -78,20 +81,20 @@ static struct crypto_alg alg = {
}
};
-static int __init init(void)
+static int __init twofish_glue_init(void)
{
return crypto_register_alg(&alg);
}
-static void __exit fini(void)
+static void __exit twofish_glue_fini(void)
{
crypto_unregister_alg(&alg);
}
-module_init(init);
-module_exit(fini);
+module_init(twofish_glue_init);
+module_exit(twofish_glue_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION ("Twofish Cipher Algorithm, asm optimized");
-MODULE_ALIAS("twofish");
-MODULE_ALIAS("twofish-asm");
+MODULE_ALIAS_CRYPTO("twofish");
+MODULE_ALIAS_CRYPTO("twofish-asm");
diff --git a/arch/x86/crypto/twofish_glue_3way.c b/arch/x86/crypto/twofish_glue_3way.c
new file mode 100644
index 000000000000..90454cf18e0d
--- /dev/null
+++ b/arch/x86/crypto/twofish_glue_3way.c
@@ -0,0 +1,168 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Glue Code for 3-way parallel assembler optimized version of Twofish
+ *
+ * Copyright (c) 2011 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ */
+
+#include <crypto/algapi.h>
+#include <crypto/twofish.h>
+#include <linux/crypto.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/types.h>
+
+#include "twofish.h"
+#include "ecb_cbc_helpers.h"
+
+EXPORT_SYMBOL_GPL(__twofish_enc_blk_3way);
+EXPORT_SYMBOL_GPL(twofish_dec_blk_3way);
+
+static int twofish_setkey_skcipher(struct crypto_skcipher *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return twofish_setkey(&tfm->base, key, keylen);
+}
+
+static inline void twofish_enc_blk_3way(const void *ctx, u8 *dst, const u8 *src)
+{
+ __twofish_enc_blk_3way(ctx, dst, src, false);
+}
+
+void twofish_dec_blk_cbc_3way(const void *ctx, u8 *dst, const u8 *src)
+{
+ u8 buf[2][TF_BLOCK_SIZE];
+ const u8 *s = src;
+
+ if (dst == src)
+ s = memcpy(buf, src, sizeof(buf));
+ twofish_dec_blk_3way(ctx, dst, src);
+ crypto_xor(dst + TF_BLOCK_SIZE, s, sizeof(buf));
+
+}
+EXPORT_SYMBOL_GPL(twofish_dec_blk_cbc_3way);
+
+static int ecb_encrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, TF_BLOCK_SIZE, -1);
+ ECB_BLOCK(3, twofish_enc_blk_3way);
+ ECB_BLOCK(1, twofish_enc_blk);
+ ECB_WALK_END();
+}
+
+static int ecb_decrypt(struct skcipher_request *req)
+{
+ ECB_WALK_START(req, TF_BLOCK_SIZE, -1);
+ ECB_BLOCK(3, twofish_dec_blk_3way);
+ ECB_BLOCK(1, twofish_dec_blk);
+ ECB_WALK_END();
+}
+
+static int cbc_encrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, TF_BLOCK_SIZE, -1);
+ CBC_ENC_BLOCK(twofish_enc_blk);
+ CBC_WALK_END();
+}
+
+static int cbc_decrypt(struct skcipher_request *req)
+{
+ CBC_WALK_START(req, TF_BLOCK_SIZE, -1);
+ CBC_DEC_BLOCK(3, twofish_dec_blk_cbc_3way);
+ CBC_DEC_BLOCK(1, twofish_dec_blk);
+ CBC_WALK_END();
+}
+
+static struct skcipher_alg tf_skciphers[] = {
+ {
+ .base.cra_name = "ecb(twofish)",
+ .base.cra_driver_name = "ecb-twofish-3way",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = TF_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct twofish_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = TF_MIN_KEY_SIZE,
+ .max_keysize = TF_MAX_KEY_SIZE,
+ .setkey = twofish_setkey_skcipher,
+ .encrypt = ecb_encrypt,
+ .decrypt = ecb_decrypt,
+ }, {
+ .base.cra_name = "cbc(twofish)",
+ .base.cra_driver_name = "cbc-twofish-3way",
+ .base.cra_priority = 300,
+ .base.cra_blocksize = TF_BLOCK_SIZE,
+ .base.cra_ctxsize = sizeof(struct twofish_ctx),
+ .base.cra_module = THIS_MODULE,
+ .min_keysize = TF_MIN_KEY_SIZE,
+ .max_keysize = TF_MAX_KEY_SIZE,
+ .ivsize = TF_BLOCK_SIZE,
+ .setkey = twofish_setkey_skcipher,
+ .encrypt = cbc_encrypt,
+ .decrypt = cbc_decrypt,
+ },
+};
+
+static bool is_blacklisted_cpu(void)
+{
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL)
+ return false;
+
+ if (boot_cpu_data.x86 == 0x06 &&
+ (boot_cpu_data.x86_model == 0x1c ||
+ boot_cpu_data.x86_model == 0x26 ||
+ boot_cpu_data.x86_model == 0x36)) {
+ /*
+ * On Atom, twofish-3way is slower than original assembler
+ * implementation. Twofish-3way trades off some performance in
+ * storing blocks in 64bit registers to allow three blocks to
+ * be processed parallel. Parallel operation then allows gaining
+ * more performance than was trade off, on out-of-order CPUs.
+ * However Atom does not benefit from this parallelism and
+ * should be blacklisted.
+ */
+ return true;
+ }
+
+ if (boot_cpu_data.x86 == 0x0f) {
+ /*
+ * On Pentium 4, twofish-3way is slower than original assembler
+ * implementation because excessive uses of 64bit rotate and
+ * left-shifts (which are really slow on P4) needed to store and
+ * handle 128bit block in two 64bit registers.
+ */
+ return true;
+ }
+
+ return false;
+}
+
+static int force;
+module_param(force, int, 0);
+MODULE_PARM_DESC(force, "Force module load, ignore CPU blacklist");
+
+static int __init twofish_3way_init(void)
+{
+ if (!force && is_blacklisted_cpu()) {
+ printk(KERN_INFO
+ "twofish-x86_64-3way: performance on this CPU "
+ "would be suboptimal: disabling "
+ "twofish-x86_64-3way.\n");
+ return -ENODEV;
+ }
+
+ return crypto_register_skciphers(tf_skciphers,
+ ARRAY_SIZE(tf_skciphers));
+}
+
+static void __exit twofish_3way_fini(void)
+{
+ crypto_unregister_skciphers(tf_skciphers, ARRAY_SIZE(tf_skciphers));
+}
+
+module_init(twofish_3way_init);
+module_exit(twofish_3way_fini);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Twofish Cipher Algorithm, 3-way parallel asm optimized");
+MODULE_ALIAS_CRYPTO("twofish");
+MODULE_ALIAS_CRYPTO("twofish-asm");
diff --git a/arch/x86/entry/Makefile b/arch/x86/entry/Makefile
new file mode 100644
index 000000000000..ca2fe186994b
--- /dev/null
+++ b/arch/x86/entry/Makefile
@@ -0,0 +1,23 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Makefile for the x86 low level entry code
+#
+
+KASAN_SANITIZE := n
+UBSAN_SANITIZE := n
+KCOV_INSTRUMENT := n
+
+CFLAGS_REMOVE_common.o = $(CC_FLAGS_FTRACE)
+
+CFLAGS_common.o += -fno-stack-protector
+
+obj-y := entry.o entry_$(BITS).o syscall_$(BITS).o
+obj-y += common.o
+
+obj-y += vdso/
+obj-y += vsyscall/
+
+obj-$(CONFIG_PREEMPTION) += thunk_$(BITS).o
+obj-$(CONFIG_IA32_EMULATION) += entry_64_compat.o syscall_32.o
+obj-$(CONFIG_X86_X32_ABI) += syscall_x32.o
+
diff --git a/arch/x86/entry/calling.h b/arch/x86/entry/calling.h
new file mode 100644
index 000000000000..f6907627172b
--- /dev/null
+++ b/arch/x86/entry/calling.h
@@ -0,0 +1,422 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/jump_label.h>
+#include <asm/unwind_hints.h>
+#include <asm/cpufeatures.h>
+#include <asm/page_types.h>
+#include <asm/percpu.h>
+#include <asm/asm-offsets.h>
+#include <asm/processor-flags.h>
+#include <asm/ptrace-abi.h>
+#include <asm/msr.h>
+#include <asm/nospec-branch.h>
+
+/*
+
+ x86 function call convention, 64-bit:
+ -------------------------------------
+ arguments | callee-saved | extra caller-saved | return
+ [callee-clobbered] | | [callee-clobbered] |
+ ---------------------------------------------------------------------------
+ rdi rsi rdx rcx r8-9 | rbx rbp [*] r12-15 | r10-11 | rax, rdx [**]
+
+ ( rsp is obviously invariant across normal function calls. (gcc can 'merge'
+ functions when it sees tail-call optimization possibilities) rflags is
+ clobbered. Leftover arguments are passed over the stack frame.)
+
+ [*] In the frame-pointers case rbp is fixed to the stack frame.
+
+ [**] for struct return values wider than 64 bits the return convention is a
+ bit more complex: up to 128 bits width we return small structures
+ straight in rax, rdx. For structures larger than that (3 words or
+ larger) the caller puts a pointer to an on-stack return struct
+ [allocated in the caller's stack frame] into the first argument - i.e.
+ into rdi. All other arguments shift up by one in this case.
+ Fortunately this case is rare in the kernel.
+
+For 32-bit we have the following conventions - kernel is built with
+-mregparm=3 and -freg-struct-return:
+
+ x86 function calling convention, 32-bit:
+ ----------------------------------------
+ arguments | callee-saved | extra caller-saved | return
+ [callee-clobbered] | | [callee-clobbered] |
+ -------------------------------------------------------------------------
+ eax edx ecx | ebx edi esi ebp [*] | <none> | eax, edx [**]
+
+ ( here too esp is obviously invariant across normal function calls. eflags
+ is clobbered. Leftover arguments are passed over the stack frame. )
+
+ [*] In the frame-pointers case ebp is fixed to the stack frame.
+
+ [**] We build with -freg-struct-return, which on 32-bit means similar
+ semantics as on 64-bit: edx can be used for a second return value
+ (i.e. covering integer and structure sizes up to 64 bits) - after that
+ it gets more complex and more expensive: 3-word or larger struct returns
+ get done in the caller's frame and the pointer to the return struct goes
+ into regparm0, i.e. eax - the other arguments shift up and the
+ function's register parameters degenerate to regparm=2 in essence.
+
+*/
+
+#ifdef CONFIG_X86_64
+
+/*
+ * 64-bit system call stack frame layout defines and helpers,
+ * for assembly code:
+ */
+
+.macro PUSH_REGS rdx=%rdx rcx=%rcx rax=%rax save_ret=0
+ .if \save_ret
+ pushq %rsi /* pt_regs->si */
+ movq 8(%rsp), %rsi /* temporarily store the return address in %rsi */
+ movq %rdi, 8(%rsp) /* pt_regs->di (overwriting original return address) */
+ .else
+ pushq %rdi /* pt_regs->di */
+ pushq %rsi /* pt_regs->si */
+ .endif
+ pushq \rdx /* pt_regs->dx */
+ pushq \rcx /* pt_regs->cx */
+ pushq \rax /* pt_regs->ax */
+ pushq %r8 /* pt_regs->r8 */
+ pushq %r9 /* pt_regs->r9 */
+ pushq %r10 /* pt_regs->r10 */
+ pushq %r11 /* pt_regs->r11 */
+ pushq %rbx /* pt_regs->rbx */
+ pushq %rbp /* pt_regs->rbp */
+ pushq %r12 /* pt_regs->r12 */
+ pushq %r13 /* pt_regs->r13 */
+ pushq %r14 /* pt_regs->r14 */
+ pushq %r15 /* pt_regs->r15 */
+ UNWIND_HINT_REGS
+
+ .if \save_ret
+ pushq %rsi /* return address on top of stack */
+ .endif
+.endm
+
+.macro CLEAR_REGS
+ /*
+ * Sanitize registers of values that a speculation attack might
+ * otherwise want to exploit. The lower registers are likely clobbered
+ * well before they could be put to use in a speculative execution
+ * gadget.
+ */
+ xorl %esi, %esi /* nospec si */
+ xorl %edx, %edx /* nospec dx */
+ xorl %ecx, %ecx /* nospec cx */
+ xorl %r8d, %r8d /* nospec r8 */
+ xorl %r9d, %r9d /* nospec r9 */
+ xorl %r10d, %r10d /* nospec r10 */
+ xorl %r11d, %r11d /* nospec r11 */
+ xorl %ebx, %ebx /* nospec rbx */
+ xorl %ebp, %ebp /* nospec rbp */
+ xorl %r12d, %r12d /* nospec r12 */
+ xorl %r13d, %r13d /* nospec r13 */
+ xorl %r14d, %r14d /* nospec r14 */
+ xorl %r15d, %r15d /* nospec r15 */
+
+.endm
+
+.macro PUSH_AND_CLEAR_REGS rdx=%rdx rcx=%rcx rax=%rax save_ret=0
+ PUSH_REGS rdx=\rdx, rcx=\rcx, rax=\rax, save_ret=\save_ret
+ CLEAR_REGS
+.endm
+
+.macro POP_REGS pop_rdi=1
+ popq %r15
+ popq %r14
+ popq %r13
+ popq %r12
+ popq %rbp
+ popq %rbx
+ popq %r11
+ popq %r10
+ popq %r9
+ popq %r8
+ popq %rax
+ popq %rcx
+ popq %rdx
+ popq %rsi
+ .if \pop_rdi
+ popq %rdi
+ .endif
+.endm
+
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+
+/*
+ * PAGE_TABLE_ISOLATION PGDs are 8k. Flip bit 12 to switch between the two
+ * halves:
+ */
+#define PTI_USER_PGTABLE_BIT PAGE_SHIFT
+#define PTI_USER_PGTABLE_MASK (1 << PTI_USER_PGTABLE_BIT)
+#define PTI_USER_PCID_BIT X86_CR3_PTI_PCID_USER_BIT
+#define PTI_USER_PCID_MASK (1 << PTI_USER_PCID_BIT)
+#define PTI_USER_PGTABLE_AND_PCID_MASK (PTI_USER_PCID_MASK | PTI_USER_PGTABLE_MASK)
+
+.macro SET_NOFLUSH_BIT reg:req
+ bts $X86_CR3_PCID_NOFLUSH_BIT, \reg
+.endm
+
+.macro ADJUST_KERNEL_CR3 reg:req
+ ALTERNATIVE "", "SET_NOFLUSH_BIT \reg", X86_FEATURE_PCID
+ /* Clear PCID and "PAGE_TABLE_ISOLATION bit", point CR3 at kernel pagetables: */
+ andq $(~PTI_USER_PGTABLE_AND_PCID_MASK), \reg
+.endm
+
+.macro SWITCH_TO_KERNEL_CR3 scratch_reg:req
+ ALTERNATIVE "jmp .Lend_\@", "", X86_FEATURE_PTI
+ mov %cr3, \scratch_reg
+ ADJUST_KERNEL_CR3 \scratch_reg
+ mov \scratch_reg, %cr3
+.Lend_\@:
+.endm
+
+#define THIS_CPU_user_pcid_flush_mask \
+ PER_CPU_VAR(cpu_tlbstate) + TLB_STATE_user_pcid_flush_mask
+
+.macro SWITCH_TO_USER_CR3_NOSTACK scratch_reg:req scratch_reg2:req
+ ALTERNATIVE "jmp .Lend_\@", "", X86_FEATURE_PTI
+ mov %cr3, \scratch_reg
+
+ ALTERNATIVE "jmp .Lwrcr3_\@", "", X86_FEATURE_PCID
+
+ /*
+ * Test if the ASID needs a flush.
+ */
+ movq \scratch_reg, \scratch_reg2
+ andq $(0x7FF), \scratch_reg /* mask ASID */
+ bt \scratch_reg, THIS_CPU_user_pcid_flush_mask
+ jnc .Lnoflush_\@
+
+ /* Flush needed, clear the bit */
+ btr \scratch_reg, THIS_CPU_user_pcid_flush_mask
+ movq \scratch_reg2, \scratch_reg
+ jmp .Lwrcr3_pcid_\@
+
+.Lnoflush_\@:
+ movq \scratch_reg2, \scratch_reg
+ SET_NOFLUSH_BIT \scratch_reg
+
+.Lwrcr3_pcid_\@:
+ /* Flip the ASID to the user version */
+ orq $(PTI_USER_PCID_MASK), \scratch_reg
+
+.Lwrcr3_\@:
+ /* Flip the PGD to the user version */
+ orq $(PTI_USER_PGTABLE_MASK), \scratch_reg
+ mov \scratch_reg, %cr3
+.Lend_\@:
+.endm
+
+.macro SWITCH_TO_USER_CR3_STACK scratch_reg:req
+ pushq %rax
+ SWITCH_TO_USER_CR3_NOSTACK scratch_reg=\scratch_reg scratch_reg2=%rax
+ popq %rax
+.endm
+
+.macro SAVE_AND_SWITCH_TO_KERNEL_CR3 scratch_reg:req save_reg:req
+ ALTERNATIVE "jmp .Ldone_\@", "", X86_FEATURE_PTI
+ movq %cr3, \scratch_reg
+ movq \scratch_reg, \save_reg
+ /*
+ * Test the user pagetable bit. If set, then the user page tables
+ * are active. If clear CR3 already has the kernel page table
+ * active.
+ */
+ bt $PTI_USER_PGTABLE_BIT, \scratch_reg
+ jnc .Ldone_\@
+
+ ADJUST_KERNEL_CR3 \scratch_reg
+ movq \scratch_reg, %cr3
+
+.Ldone_\@:
+.endm
+
+.macro RESTORE_CR3 scratch_reg:req save_reg:req
+ ALTERNATIVE "jmp .Lend_\@", "", X86_FEATURE_PTI
+
+ ALTERNATIVE "jmp .Lwrcr3_\@", "", X86_FEATURE_PCID
+
+ /*
+ * KERNEL pages can always resume with NOFLUSH as we do
+ * explicit flushes.
+ */
+ bt $PTI_USER_PGTABLE_BIT, \save_reg
+ jnc .Lnoflush_\@
+
+ /*
+ * Check if there's a pending flush for the user ASID we're
+ * about to set.
+ */
+ movq \save_reg, \scratch_reg
+ andq $(0x7FF), \scratch_reg
+ bt \scratch_reg, THIS_CPU_user_pcid_flush_mask
+ jnc .Lnoflush_\@
+
+ btr \scratch_reg, THIS_CPU_user_pcid_flush_mask
+ jmp .Lwrcr3_\@
+
+.Lnoflush_\@:
+ SET_NOFLUSH_BIT \save_reg
+
+.Lwrcr3_\@:
+ /*
+ * The CR3 write could be avoided when not changing its value,
+ * but would require a CR3 read *and* a scratch register.
+ */
+ movq \save_reg, %cr3
+.Lend_\@:
+.endm
+
+#else /* CONFIG_PAGE_TABLE_ISOLATION=n: */
+
+.macro SWITCH_TO_KERNEL_CR3 scratch_reg:req
+.endm
+.macro SWITCH_TO_USER_CR3_NOSTACK scratch_reg:req scratch_reg2:req
+.endm
+.macro SWITCH_TO_USER_CR3_STACK scratch_reg:req
+.endm
+.macro SAVE_AND_SWITCH_TO_KERNEL_CR3 scratch_reg:req save_reg:req
+.endm
+.macro RESTORE_CR3 scratch_reg:req save_reg:req
+.endm
+
+#endif
+
+/*
+ * IBRS kernel mitigation for Spectre_v2.
+ *
+ * Assumes full context is established (PUSH_REGS, CR3 and GS) and it clobbers
+ * the regs it uses (AX, CX, DX). Must be called before the first RET
+ * instruction (NOTE! UNTRAIN_RET includes a RET instruction)
+ *
+ * The optional argument is used to save/restore the current value,
+ * which is used on the paranoid paths.
+ *
+ * Assumes x86_spec_ctrl_{base,current} to have SPEC_CTRL_IBRS set.
+ */
+.macro IBRS_ENTER save_reg
+#ifdef CONFIG_CPU_IBRS_ENTRY
+ ALTERNATIVE "jmp .Lend_\@", "", X86_FEATURE_KERNEL_IBRS
+ movl $MSR_IA32_SPEC_CTRL, %ecx
+
+.ifnb \save_reg
+ rdmsr
+ shl $32, %rdx
+ or %rdx, %rax
+ mov %rax, \save_reg
+ test $SPEC_CTRL_IBRS, %eax
+ jz .Ldo_wrmsr_\@
+ lfence
+ jmp .Lend_\@
+.Ldo_wrmsr_\@:
+.endif
+
+ movq PER_CPU_VAR(x86_spec_ctrl_current), %rdx
+ movl %edx, %eax
+ shr $32, %rdx
+ wrmsr
+.Lend_\@:
+#endif
+.endm
+
+/*
+ * Similar to IBRS_ENTER, requires KERNEL GS,CR3 and clobbers (AX, CX, DX)
+ * regs. Must be called after the last RET.
+ */
+.macro IBRS_EXIT save_reg
+#ifdef CONFIG_CPU_IBRS_ENTRY
+ ALTERNATIVE "jmp .Lend_\@", "", X86_FEATURE_KERNEL_IBRS
+ movl $MSR_IA32_SPEC_CTRL, %ecx
+
+.ifnb \save_reg
+ mov \save_reg, %rdx
+.else
+ movq PER_CPU_VAR(x86_spec_ctrl_current), %rdx
+ andl $(~SPEC_CTRL_IBRS), %edx
+.endif
+
+ movl %edx, %eax
+ shr $32, %rdx
+ wrmsr
+.Lend_\@:
+#endif
+.endm
+
+/*
+ * Mitigate Spectre v1 for conditional swapgs code paths.
+ *
+ * FENCE_SWAPGS_USER_ENTRY is used in the user entry swapgs code path, to
+ * prevent a speculative swapgs when coming from kernel space.
+ *
+ * FENCE_SWAPGS_KERNEL_ENTRY is used in the kernel entry non-swapgs code path,
+ * to prevent the swapgs from getting speculatively skipped when coming from
+ * user space.
+ */
+.macro FENCE_SWAPGS_USER_ENTRY
+ ALTERNATIVE "", "lfence", X86_FEATURE_FENCE_SWAPGS_USER
+.endm
+.macro FENCE_SWAPGS_KERNEL_ENTRY
+ ALTERNATIVE "", "lfence", X86_FEATURE_FENCE_SWAPGS_KERNEL
+.endm
+
+.macro STACKLEAK_ERASE_NOCLOBBER
+#ifdef CONFIG_GCC_PLUGIN_STACKLEAK
+ PUSH_AND_CLEAR_REGS
+ call stackleak_erase
+ POP_REGS
+#endif
+.endm
+
+.macro SAVE_AND_SET_GSBASE scratch_reg:req save_reg:req
+ rdgsbase \save_reg
+ GET_PERCPU_BASE \scratch_reg
+ wrgsbase \scratch_reg
+.endm
+
+#else /* CONFIG_X86_64 */
+# undef UNWIND_HINT_IRET_REGS
+# define UNWIND_HINT_IRET_REGS
+#endif /* !CONFIG_X86_64 */
+
+.macro STACKLEAK_ERASE
+#ifdef CONFIG_GCC_PLUGIN_STACKLEAK
+ call stackleak_erase
+#endif
+.endm
+
+#ifdef CONFIG_SMP
+
+/*
+ * CPU/node NR is loaded from the limit (size) field of a special segment
+ * descriptor entry in GDT.
+ */
+.macro LOAD_CPU_AND_NODE_SEG_LIMIT reg:req
+ movq $__CPUNODE_SEG, \reg
+ lsl \reg, \reg
+.endm
+
+/*
+ * Fetch the per-CPU GSBASE value for this processor and put it in @reg.
+ * We normally use %gs for accessing per-CPU data, but we are setting up
+ * %gs here and obviously can not use %gs itself to access per-CPU data.
+ *
+ * Do not use RDPID, because KVM loads guest's TSC_AUX on vm-entry and
+ * may not restore the host's value until the CPU returns to userspace.
+ * Thus the kernel would consume a guest's TSC_AUX if an NMI arrives
+ * while running KVM's run loop.
+ */
+.macro GET_PERCPU_BASE reg:req
+ LOAD_CPU_AND_NODE_SEG_LIMIT \reg
+ andq $VDSO_CPUNODE_MASK, \reg
+ movq __per_cpu_offset(, \reg, 8), \reg
+.endm
+
+#else
+
+.macro GET_PERCPU_BASE reg:req
+ movq pcpu_unit_offsets(%rip), \reg
+.endm
+
+#endif /* CONFIG_SMP */
diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c
new file mode 100644
index 000000000000..6c2826417b33
--- /dev/null
+++ b/arch/x86/entry/common.c
@@ -0,0 +1,320 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * common.c - C code for kernel entry and exit
+ * Copyright (c) 2015 Andrew Lutomirski
+ *
+ * Based on asm and ptrace code by many authors. The code here originated
+ * in ptrace.c and signal.c.
+ */
+
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <linux/entry-common.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/errno.h>
+#include <linux/ptrace.h>
+#include <linux/export.h>
+#include <linux/nospec.h>
+#include <linux/syscalls.h>
+#include <linux/uaccess.h>
+
+#ifdef CONFIG_XEN_PV
+#include <xen/xen-ops.h>
+#include <xen/events.h>
+#endif
+
+#include <asm/desc.h>
+#include <asm/traps.h>
+#include <asm/vdso.h>
+#include <asm/cpufeature.h>
+#include <asm/fpu/api.h>
+#include <asm/nospec-branch.h>
+#include <asm/io_bitmap.h>
+#include <asm/syscall.h>
+#include <asm/irq_stack.h>
+
+#ifdef CONFIG_X86_64
+
+static __always_inline bool do_syscall_x64(struct pt_regs *regs, int nr)
+{
+ /*
+ * Convert negative numbers to very high and thus out of range
+ * numbers for comparisons.
+ */
+ unsigned int unr = nr;
+
+ if (likely(unr < NR_syscalls)) {
+ unr = array_index_nospec(unr, NR_syscalls);
+ regs->ax = sys_call_table[unr](regs);
+ return true;
+ }
+ return false;
+}
+
+static __always_inline bool do_syscall_x32(struct pt_regs *regs, int nr)
+{
+ /*
+ * Adjust the starting offset of the table, and convert numbers
+ * < __X32_SYSCALL_BIT to very high and thus out of range
+ * numbers for comparisons.
+ */
+ unsigned int xnr = nr - __X32_SYSCALL_BIT;
+
+ if (IS_ENABLED(CONFIG_X86_X32_ABI) && likely(xnr < X32_NR_syscalls)) {
+ xnr = array_index_nospec(xnr, X32_NR_syscalls);
+ regs->ax = x32_sys_call_table[xnr](regs);
+ return true;
+ }
+ return false;
+}
+
+__visible noinstr void do_syscall_64(struct pt_regs *regs, int nr)
+{
+ add_random_kstack_offset();
+ nr = syscall_enter_from_user_mode(regs, nr);
+
+ instrumentation_begin();
+
+ if (!do_syscall_x64(regs, nr) && !do_syscall_x32(regs, nr) && nr != -1) {
+ /* Invalid system call, but still a system call. */
+ regs->ax = __x64_sys_ni_syscall(regs);
+ }
+
+ instrumentation_end();
+ syscall_exit_to_user_mode(regs);
+}
+#endif
+
+#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
+static __always_inline int syscall_32_enter(struct pt_regs *regs)
+{
+ if (IS_ENABLED(CONFIG_IA32_EMULATION))
+ current_thread_info()->status |= TS_COMPAT;
+
+ return (int)regs->orig_ax;
+}
+
+/*
+ * Invoke a 32-bit syscall. Called with IRQs on in CONTEXT_KERNEL.
+ */
+static __always_inline void do_syscall_32_irqs_on(struct pt_regs *regs, int nr)
+{
+ /*
+ * Convert negative numbers to very high and thus out of range
+ * numbers for comparisons.
+ */
+ unsigned int unr = nr;
+
+ if (likely(unr < IA32_NR_syscalls)) {
+ unr = array_index_nospec(unr, IA32_NR_syscalls);
+ regs->ax = ia32_sys_call_table[unr](regs);
+ } else if (nr != -1) {
+ regs->ax = __ia32_sys_ni_syscall(regs);
+ }
+}
+
+/* Handles int $0x80 */
+__visible noinstr void do_int80_syscall_32(struct pt_regs *regs)
+{
+ int nr = syscall_32_enter(regs);
+
+ add_random_kstack_offset();
+ /*
+ * Subtlety here: if ptrace pokes something larger than 2^31-1 into
+ * orig_ax, the int return value truncates it. This matches
+ * the semantics of syscall_get_nr().
+ */
+ nr = syscall_enter_from_user_mode(regs, nr);
+ instrumentation_begin();
+
+ do_syscall_32_irqs_on(regs, nr);
+
+ instrumentation_end();
+ syscall_exit_to_user_mode(regs);
+}
+
+static noinstr bool __do_fast_syscall_32(struct pt_regs *regs)
+{
+ int nr = syscall_32_enter(regs);
+ int res;
+
+ add_random_kstack_offset();
+ /*
+ * This cannot use syscall_enter_from_user_mode() as it has to
+ * fetch EBP before invoking any of the syscall entry work
+ * functions.
+ */
+ syscall_enter_from_user_mode_prepare(regs);
+
+ instrumentation_begin();
+ /* Fetch EBP from where the vDSO stashed it. */
+ if (IS_ENABLED(CONFIG_X86_64)) {
+ /*
+ * Micro-optimization: the pointer we're following is
+ * explicitly 32 bits, so it can't be out of range.
+ */
+ res = __get_user(*(u32 *)&regs->bp,
+ (u32 __user __force *)(unsigned long)(u32)regs->sp);
+ } else {
+ res = get_user(*(u32 *)&regs->bp,
+ (u32 __user __force *)(unsigned long)(u32)regs->sp);
+ }
+
+ if (res) {
+ /* User code screwed up. */
+ regs->ax = -EFAULT;
+
+ local_irq_disable();
+ instrumentation_end();
+ irqentry_exit_to_user_mode(regs);
+ return false;
+ }
+
+ nr = syscall_enter_from_user_mode_work(regs, nr);
+
+ /* Now this is just like a normal syscall. */
+ do_syscall_32_irqs_on(regs, nr);
+
+ instrumentation_end();
+ syscall_exit_to_user_mode(regs);
+ return true;
+}
+
+/* Returns 0 to return using IRET or 1 to return using SYSEXIT/SYSRETL. */
+__visible noinstr long do_fast_syscall_32(struct pt_regs *regs)
+{
+ /*
+ * Called using the internal vDSO SYSENTER/SYSCALL32 calling
+ * convention. Adjust regs so it looks like we entered using int80.
+ */
+ unsigned long landing_pad = (unsigned long)current->mm->context.vdso +
+ vdso_image_32.sym_int80_landing_pad;
+
+ /*
+ * SYSENTER loses EIP, and even SYSCALL32 needs us to skip forward
+ * so that 'regs->ip -= 2' lands back on an int $0x80 instruction.
+ * Fix it up.
+ */
+ regs->ip = landing_pad;
+
+ /* Invoke the syscall. If it failed, keep it simple: use IRET. */
+ if (!__do_fast_syscall_32(regs))
+ return 0;
+
+#ifdef CONFIG_X86_64
+ /*
+ * Opportunistic SYSRETL: if possible, try to return using SYSRETL.
+ * SYSRETL is available on all 64-bit CPUs, so we don't need to
+ * bother with SYSEXIT.
+ *
+ * Unlike 64-bit opportunistic SYSRET, we can't check that CX == IP,
+ * because the ECX fixup above will ensure that this is essentially
+ * never the case.
+ */
+ return regs->cs == __USER32_CS && regs->ss == __USER_DS &&
+ regs->ip == landing_pad &&
+ (regs->flags & (X86_EFLAGS_RF | X86_EFLAGS_TF)) == 0;
+#else
+ /*
+ * Opportunistic SYSEXIT: if possible, try to return using SYSEXIT.
+ *
+ * Unlike 64-bit opportunistic SYSRET, we can't check that CX == IP,
+ * because the ECX fixup above will ensure that this is essentially
+ * never the case.
+ *
+ * We don't allow syscalls at all from VM86 mode, but we still
+ * need to check VM, because we might be returning from sys_vm86.
+ */
+ return static_cpu_has(X86_FEATURE_SEP) &&
+ regs->cs == __USER_CS && regs->ss == __USER_DS &&
+ regs->ip == landing_pad &&
+ (regs->flags & (X86_EFLAGS_RF | X86_EFLAGS_TF | X86_EFLAGS_VM)) == 0;
+#endif
+}
+
+/* Returns 0 to return using IRET or 1 to return using SYSEXIT/SYSRETL. */
+__visible noinstr long do_SYSENTER_32(struct pt_regs *regs)
+{
+ /* SYSENTER loses RSP, but the vDSO saved it in RBP. */
+ regs->sp = regs->bp;
+
+ /* SYSENTER clobbers EFLAGS.IF. Assume it was set in usermode. */
+ regs->flags |= X86_EFLAGS_IF;
+
+ return do_fast_syscall_32(regs);
+}
+#endif
+
+SYSCALL_DEFINE0(ni_syscall)
+{
+ return -ENOSYS;
+}
+
+#ifdef CONFIG_XEN_PV
+#ifndef CONFIG_PREEMPTION
+/*
+ * Some hypercalls issued by the toolstack can take many 10s of
+ * seconds. Allow tasks running hypercalls via the privcmd driver to
+ * be voluntarily preempted even if full kernel preemption is
+ * disabled.
+ *
+ * Such preemptible hypercalls are bracketed by
+ * xen_preemptible_hcall_begin() and xen_preemptible_hcall_end()
+ * calls.
+ */
+DEFINE_PER_CPU(bool, xen_in_preemptible_hcall);
+EXPORT_SYMBOL_GPL(xen_in_preemptible_hcall);
+
+/*
+ * In case of scheduling the flag must be cleared and restored after
+ * returning from schedule as the task might move to a different CPU.
+ */
+static __always_inline bool get_and_clear_inhcall(void)
+{
+ bool inhcall = __this_cpu_read(xen_in_preemptible_hcall);
+
+ __this_cpu_write(xen_in_preemptible_hcall, false);
+ return inhcall;
+}
+
+static __always_inline void restore_inhcall(bool inhcall)
+{
+ __this_cpu_write(xen_in_preemptible_hcall, inhcall);
+}
+#else
+static __always_inline bool get_and_clear_inhcall(void) { return false; }
+static __always_inline void restore_inhcall(bool inhcall) { }
+#endif
+
+static void __xen_pv_evtchn_do_upcall(struct pt_regs *regs)
+{
+ struct pt_regs *old_regs = set_irq_regs(regs);
+
+ inc_irq_stat(irq_hv_callback_count);
+
+ xen_hvm_evtchn_do_upcall();
+
+ set_irq_regs(old_regs);
+}
+
+__visible noinstr void xen_pv_evtchn_do_upcall(struct pt_regs *regs)
+{
+ irqentry_state_t state = irqentry_enter(regs);
+ bool inhcall;
+
+ instrumentation_begin();
+ run_sysvec_on_irqstack_cond(__xen_pv_evtchn_do_upcall, regs);
+
+ inhcall = get_and_clear_inhcall();
+ if (inhcall && !WARN_ON_ONCE(state.exit_rcu)) {
+ irqentry_exit_cond_resched();
+ instrumentation_end();
+ restore_inhcall(inhcall);
+ } else {
+ instrumentation_end();
+ irqentry_exit(regs, state);
+ }
+}
+#endif /* CONFIG_XEN_PV */
diff --git a/arch/x86/entry/entry.S b/arch/x86/entry/entry.S
new file mode 100644
index 000000000000..bfb7bcb362bc
--- /dev/null
+++ b/arch/x86/entry/entry.S
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Common place for both 32- and 64-bit entry routines.
+ */
+
+#include <linux/linkage.h>
+#include <asm/export.h>
+#include <asm/msr-index.h>
+
+.pushsection .noinstr.text, "ax"
+
+SYM_FUNC_START(entry_ibpb)
+ movl $MSR_IA32_PRED_CMD, %ecx
+ movl $PRED_CMD_IBPB, %eax
+ xorl %edx, %edx
+ wrmsr
+ RET
+SYM_FUNC_END(entry_ibpb)
+/* For KVM */
+EXPORT_SYMBOL_GPL(entry_ibpb);
+
+.popsection
diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S
new file mode 100644
index 000000000000..91397f58ac30
--- /dev/null
+++ b/arch/x86/entry/entry_32.S
@@ -0,0 +1,1252 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 1991,1992 Linus Torvalds
+ *
+ * entry_32.S contains the system-call and low-level fault and trap handling routines.
+ *
+ * Stack layout while running C code:
+ * ptrace needs to have all registers on the stack.
+ * If the order here is changed, it needs to be
+ * updated in fork.c:copy_process(), signal.c:do_signal(),
+ * ptrace.c and ptrace.h
+ *
+ * 0(%esp) - %ebx
+ * 4(%esp) - %ecx
+ * 8(%esp) - %edx
+ * C(%esp) - %esi
+ * 10(%esp) - %edi
+ * 14(%esp) - %ebp
+ * 18(%esp) - %eax
+ * 1C(%esp) - %ds
+ * 20(%esp) - %es
+ * 24(%esp) - %fs
+ * 28(%esp) - unused -- was %gs on old stackprotector kernels
+ * 2C(%esp) - orig_eax
+ * 30(%esp) - %eip
+ * 34(%esp) - %cs
+ * 38(%esp) - %eflags
+ * 3C(%esp) - %oldesp
+ * 40(%esp) - %oldss
+ */
+
+#include <linux/linkage.h>
+#include <linux/err.h>
+#include <asm/thread_info.h>
+#include <asm/irqflags.h>
+#include <asm/errno.h>
+#include <asm/segment.h>
+#include <asm/smp.h>
+#include <asm/percpu.h>
+#include <asm/processor-flags.h>
+#include <asm/irq_vectors.h>
+#include <asm/cpufeatures.h>
+#include <asm/alternative.h>
+#include <asm/asm.h>
+#include <asm/smap.h>
+#include <asm/frame.h>
+#include <asm/trapnr.h>
+#include <asm/nospec-branch.h>
+
+#include "calling.h"
+
+ .section .entry.text, "ax"
+
+#define PTI_SWITCH_MASK (1 << PAGE_SHIFT)
+
+/* Unconditionally switch to user cr3 */
+.macro SWITCH_TO_USER_CR3 scratch_reg:req
+ ALTERNATIVE "jmp .Lend_\@", "", X86_FEATURE_PTI
+
+ movl %cr3, \scratch_reg
+ orl $PTI_SWITCH_MASK, \scratch_reg
+ movl \scratch_reg, %cr3
+.Lend_\@:
+.endm
+
+.macro BUG_IF_WRONG_CR3 no_user_check=0
+#ifdef CONFIG_DEBUG_ENTRY
+ ALTERNATIVE "jmp .Lend_\@", "", X86_FEATURE_PTI
+ .if \no_user_check == 0
+ /* coming from usermode? */
+ testl $USER_SEGMENT_RPL_MASK, PT_CS(%esp)
+ jz .Lend_\@
+ .endif
+ /* On user-cr3? */
+ movl %cr3, %eax
+ testl $PTI_SWITCH_MASK, %eax
+ jnz .Lend_\@
+ /* From userspace with kernel cr3 - BUG */
+ ud2
+.Lend_\@:
+#endif
+.endm
+
+/*
+ * Switch to kernel cr3 if not already loaded and return current cr3 in
+ * \scratch_reg
+ */
+.macro SWITCH_TO_KERNEL_CR3 scratch_reg:req
+ ALTERNATIVE "jmp .Lend_\@", "", X86_FEATURE_PTI
+ movl %cr3, \scratch_reg
+ /* Test if we are already on kernel CR3 */
+ testl $PTI_SWITCH_MASK, \scratch_reg
+ jz .Lend_\@
+ andl $(~PTI_SWITCH_MASK), \scratch_reg
+ movl \scratch_reg, %cr3
+ /* Return original CR3 in \scratch_reg */
+ orl $PTI_SWITCH_MASK, \scratch_reg
+.Lend_\@:
+.endm
+
+#define CS_FROM_ENTRY_STACK (1 << 31)
+#define CS_FROM_USER_CR3 (1 << 30)
+#define CS_FROM_KERNEL (1 << 29)
+#define CS_FROM_ESPFIX (1 << 28)
+
+.macro FIXUP_FRAME
+ /*
+ * The high bits of the CS dword (__csh) are used for CS_FROM_*.
+ * Clear them in case hardware didn't do this for us.
+ */
+ andl $0x0000ffff, 4*4(%esp)
+
+#ifdef CONFIG_VM86
+ testl $X86_EFLAGS_VM, 5*4(%esp)
+ jnz .Lfrom_usermode_no_fixup_\@
+#endif
+ testl $USER_SEGMENT_RPL_MASK, 4*4(%esp)
+ jnz .Lfrom_usermode_no_fixup_\@
+
+ orl $CS_FROM_KERNEL, 4*4(%esp)
+
+ /*
+ * When we're here from kernel mode; the (exception) stack looks like:
+ *
+ * 6*4(%esp) - <previous context>
+ * 5*4(%esp) - flags
+ * 4*4(%esp) - cs
+ * 3*4(%esp) - ip
+ * 2*4(%esp) - orig_eax
+ * 1*4(%esp) - gs / function
+ * 0*4(%esp) - fs
+ *
+ * Lets build a 5 entry IRET frame after that, such that struct pt_regs
+ * is complete and in particular regs->sp is correct. This gives us
+ * the original 6 entries as gap:
+ *
+ * 14*4(%esp) - <previous context>
+ * 13*4(%esp) - gap / flags
+ * 12*4(%esp) - gap / cs
+ * 11*4(%esp) - gap / ip
+ * 10*4(%esp) - gap / orig_eax
+ * 9*4(%esp) - gap / gs / function
+ * 8*4(%esp) - gap / fs
+ * 7*4(%esp) - ss
+ * 6*4(%esp) - sp
+ * 5*4(%esp) - flags
+ * 4*4(%esp) - cs
+ * 3*4(%esp) - ip
+ * 2*4(%esp) - orig_eax
+ * 1*4(%esp) - gs / function
+ * 0*4(%esp) - fs
+ */
+
+ pushl %ss # ss
+ pushl %esp # sp (points at ss)
+ addl $7*4, (%esp) # point sp back at the previous context
+ pushl 7*4(%esp) # flags
+ pushl 7*4(%esp) # cs
+ pushl 7*4(%esp) # ip
+ pushl 7*4(%esp) # orig_eax
+ pushl 7*4(%esp) # gs / function
+ pushl 7*4(%esp) # fs
+.Lfrom_usermode_no_fixup_\@:
+.endm
+
+.macro IRET_FRAME
+ /*
+ * We're called with %ds, %es, %fs, and %gs from the interrupted
+ * frame, so we shouldn't use them. Also, we may be in ESPFIX
+ * mode and therefore have a nonzero SS base and an offset ESP,
+ * so any attempt to access the stack needs to use SS. (except for
+ * accesses through %esp, which automatically use SS.)
+ */
+ testl $CS_FROM_KERNEL, 1*4(%esp)
+ jz .Lfinished_frame_\@
+
+ /*
+ * Reconstruct the 3 entry IRET frame right after the (modified)
+ * regs->sp without lowering %esp in between, such that an NMI in the
+ * middle doesn't scribble our stack.
+ */
+ pushl %eax
+ pushl %ecx
+ movl 5*4(%esp), %eax # (modified) regs->sp
+
+ movl 4*4(%esp), %ecx # flags
+ movl %ecx, %ss:-1*4(%eax)
+
+ movl 3*4(%esp), %ecx # cs
+ andl $0x0000ffff, %ecx
+ movl %ecx, %ss:-2*4(%eax)
+
+ movl 2*4(%esp), %ecx # ip
+ movl %ecx, %ss:-3*4(%eax)
+
+ movl 1*4(%esp), %ecx # eax
+ movl %ecx, %ss:-4*4(%eax)
+
+ popl %ecx
+ lea -4*4(%eax), %esp
+ popl %eax
+.Lfinished_frame_\@:
+.endm
+
+.macro SAVE_ALL pt_regs_ax=%eax switch_stacks=0 skip_gs=0 unwind_espfix=0
+ cld
+.if \skip_gs == 0
+ pushl $0
+.endif
+ pushl %fs
+
+ pushl %eax
+ movl $(__KERNEL_PERCPU), %eax
+ movl %eax, %fs
+.if \unwind_espfix > 0
+ UNWIND_ESPFIX_STACK
+.endif
+ popl %eax
+
+ FIXUP_FRAME
+ pushl %es
+ pushl %ds
+ pushl \pt_regs_ax
+ pushl %ebp
+ pushl %edi
+ pushl %esi
+ pushl %edx
+ pushl %ecx
+ pushl %ebx
+ movl $(__USER_DS), %edx
+ movl %edx, %ds
+ movl %edx, %es
+ /* Switch to kernel stack if necessary */
+.if \switch_stacks > 0
+ SWITCH_TO_KERNEL_STACK
+.endif
+.endm
+
+.macro SAVE_ALL_NMI cr3_reg:req unwind_espfix=0
+ SAVE_ALL unwind_espfix=\unwind_espfix
+
+ BUG_IF_WRONG_CR3
+
+ /*
+ * Now switch the CR3 when PTI is enabled.
+ *
+ * We can enter with either user or kernel cr3, the code will
+ * store the old cr3 in \cr3_reg and switches to the kernel cr3
+ * if necessary.
+ */
+ SWITCH_TO_KERNEL_CR3 scratch_reg=\cr3_reg
+
+.Lend_\@:
+.endm
+
+.macro RESTORE_INT_REGS
+ popl %ebx
+ popl %ecx
+ popl %edx
+ popl %esi
+ popl %edi
+ popl %ebp
+ popl %eax
+.endm
+
+.macro RESTORE_REGS pop=0
+ RESTORE_INT_REGS
+1: popl %ds
+2: popl %es
+3: popl %fs
+4: addl $(4 + \pop), %esp /* pop the unused "gs" slot */
+ IRET_FRAME
+
+ /*
+ * There is no _ASM_EXTABLE_TYPE_REG() for ASM, however since this is
+ * ASM the registers are known and we can trivially hard-code them.
+ */
+ _ASM_EXTABLE_TYPE(1b, 2b, EX_TYPE_POP_ZERO|EX_REG_DS)
+ _ASM_EXTABLE_TYPE(2b, 3b, EX_TYPE_POP_ZERO|EX_REG_ES)
+ _ASM_EXTABLE_TYPE(3b, 4b, EX_TYPE_POP_ZERO|EX_REG_FS)
+.endm
+
+.macro RESTORE_ALL_NMI cr3_reg:req pop=0
+ /*
+ * Now switch the CR3 when PTI is enabled.
+ *
+ * We enter with kernel cr3 and switch the cr3 to the value
+ * stored on \cr3_reg, which is either a user or a kernel cr3.
+ */
+ ALTERNATIVE "jmp .Lswitched_\@", "", X86_FEATURE_PTI
+
+ testl $PTI_SWITCH_MASK, \cr3_reg
+ jz .Lswitched_\@
+
+ /* User cr3 in \cr3_reg - write it to hardware cr3 */
+ movl \cr3_reg, %cr3
+
+.Lswitched_\@:
+
+ BUG_IF_WRONG_CR3
+
+ RESTORE_REGS pop=\pop
+.endm
+
+.macro CHECK_AND_APPLY_ESPFIX
+#ifdef CONFIG_X86_ESPFIX32
+#define GDT_ESPFIX_OFFSET (GDT_ENTRY_ESPFIX_SS * 8)
+#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + GDT_ESPFIX_OFFSET
+
+ ALTERNATIVE "jmp .Lend_\@", "", X86_BUG_ESPFIX
+
+ movl PT_EFLAGS(%esp), %eax # mix EFLAGS, SS and CS
+ /*
+ * Warning: PT_OLDSS(%esp) contains the wrong/random values if we
+ * are returning to the kernel.
+ * See comments in process.c:copy_thread() for details.
+ */
+ movb PT_OLDSS(%esp), %ah
+ movb PT_CS(%esp), %al
+ andl $(X86_EFLAGS_VM | (SEGMENT_TI_MASK << 8) | SEGMENT_RPL_MASK), %eax
+ cmpl $((SEGMENT_LDT << 8) | USER_RPL), %eax
+ jne .Lend_\@ # returning to user-space with LDT SS
+
+ /*
+ * Setup and switch to ESPFIX stack
+ *
+ * We're returning to userspace with a 16 bit stack. The CPU will not
+ * restore the high word of ESP for us on executing iret... This is an
+ * "official" bug of all the x86-compatible CPUs, which we can work
+ * around to make dosemu and wine happy. We do this by preloading the
+ * high word of ESP with the high word of the userspace ESP while
+ * compensating for the offset by changing to the ESPFIX segment with
+ * a base address that matches for the difference.
+ */
+ mov %esp, %edx /* load kernel esp */
+ mov PT_OLDESP(%esp), %eax /* load userspace esp */
+ mov %dx, %ax /* eax: new kernel esp */
+ sub %eax, %edx /* offset (low word is 0) */
+ shr $16, %edx
+ mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */
+ mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */
+ pushl $__ESPFIX_SS
+ pushl %eax /* new kernel esp */
+ /*
+ * Disable interrupts, but do not irqtrace this section: we
+ * will soon execute iret and the tracer was already set to
+ * the irqstate after the IRET:
+ */
+ cli
+ lss (%esp), %esp /* switch to espfix segment */
+.Lend_\@:
+#endif /* CONFIG_X86_ESPFIX32 */
+.endm
+
+/*
+ * Called with pt_regs fully populated and kernel segments loaded,
+ * so we can access PER_CPU and use the integer registers.
+ *
+ * We need to be very careful here with the %esp switch, because an NMI
+ * can happen everywhere. If the NMI handler finds itself on the
+ * entry-stack, it will overwrite the task-stack and everything we
+ * copied there. So allocate the stack-frame on the task-stack and
+ * switch to it before we do any copying.
+ */
+
+.macro SWITCH_TO_KERNEL_STACK
+
+ BUG_IF_WRONG_CR3
+
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%eax
+
+ /*
+ * %eax now contains the entry cr3 and we carry it forward in
+ * that register for the time this macro runs
+ */
+
+ /* Are we on the entry stack? Bail out if not! */
+ movl PER_CPU_VAR(cpu_entry_area), %ecx
+ addl $CPU_ENTRY_AREA_entry_stack + SIZEOF_entry_stack, %ecx
+ subl %esp, %ecx /* ecx = (end of entry_stack) - esp */
+ cmpl $SIZEOF_entry_stack, %ecx
+ jae .Lend_\@
+
+ /* Load stack pointer into %esi and %edi */
+ movl %esp, %esi
+ movl %esi, %edi
+
+ /* Move %edi to the top of the entry stack */
+ andl $(MASK_entry_stack), %edi
+ addl $(SIZEOF_entry_stack), %edi
+
+ /* Load top of task-stack into %edi */
+ movl TSS_entry2task_stack(%edi), %edi
+
+ /* Special case - entry from kernel mode via entry stack */
+#ifdef CONFIG_VM86
+ movl PT_EFLAGS(%esp), %ecx # mix EFLAGS and CS
+ movb PT_CS(%esp), %cl
+ andl $(X86_EFLAGS_VM | SEGMENT_RPL_MASK), %ecx
+#else
+ movl PT_CS(%esp), %ecx
+ andl $SEGMENT_RPL_MASK, %ecx
+#endif
+ cmpl $USER_RPL, %ecx
+ jb .Lentry_from_kernel_\@
+
+ /* Bytes to copy */
+ movl $PTREGS_SIZE, %ecx
+
+#ifdef CONFIG_VM86
+ testl $X86_EFLAGS_VM, PT_EFLAGS(%esi)
+ jz .Lcopy_pt_regs_\@
+
+ /*
+ * Stack-frame contains 4 additional segment registers when
+ * coming from VM86 mode
+ */
+ addl $(4 * 4), %ecx
+
+#endif
+.Lcopy_pt_regs_\@:
+
+ /* Allocate frame on task-stack */
+ subl %ecx, %edi
+
+ /* Switch to task-stack */
+ movl %edi, %esp
+
+ /*
+ * We are now on the task-stack and can safely copy over the
+ * stack-frame
+ */
+ shrl $2, %ecx
+ cld
+ rep movsl
+
+ jmp .Lend_\@
+
+.Lentry_from_kernel_\@:
+
+ /*
+ * This handles the case when we enter the kernel from
+ * kernel-mode and %esp points to the entry-stack. When this
+ * happens we need to switch to the task-stack to run C code,
+ * but switch back to the entry-stack again when we approach
+ * iret and return to the interrupted code-path. This usually
+ * happens when we hit an exception while restoring user-space
+ * segment registers on the way back to user-space or when the
+ * sysenter handler runs with eflags.tf set.
+ *
+ * When we switch to the task-stack here, we can't trust the
+ * contents of the entry-stack anymore, as the exception handler
+ * might be scheduled out or moved to another CPU. Therefore we
+ * copy the complete entry-stack to the task-stack and set a
+ * marker in the iret-frame (bit 31 of the CS dword) to detect
+ * what we've done on the iret path.
+ *
+ * On the iret path we copy everything back and switch to the
+ * entry-stack, so that the interrupted kernel code-path
+ * continues on the same stack it was interrupted with.
+ *
+ * Be aware that an NMI can happen anytime in this code.
+ *
+ * %esi: Entry-Stack pointer (same as %esp)
+ * %edi: Top of the task stack
+ * %eax: CR3 on kernel entry
+ */
+
+ /* Calculate number of bytes on the entry stack in %ecx */
+ movl %esi, %ecx
+
+ /* %ecx to the top of entry-stack */
+ andl $(MASK_entry_stack), %ecx
+ addl $(SIZEOF_entry_stack), %ecx
+
+ /* Number of bytes on the entry stack to %ecx */
+ sub %esi, %ecx
+
+ /* Mark stackframe as coming from entry stack */
+ orl $CS_FROM_ENTRY_STACK, PT_CS(%esp)
+
+ /*
+ * Test the cr3 used to enter the kernel and add a marker
+ * so that we can switch back to it before iret.
+ */
+ testl $PTI_SWITCH_MASK, %eax
+ jz .Lcopy_pt_regs_\@
+ orl $CS_FROM_USER_CR3, PT_CS(%esp)
+
+ /*
+ * %esi and %edi are unchanged, %ecx contains the number of
+ * bytes to copy. The code at .Lcopy_pt_regs_\@ will allocate
+ * the stack-frame on task-stack and copy everything over
+ */
+ jmp .Lcopy_pt_regs_\@
+
+.Lend_\@:
+.endm
+
+/*
+ * Switch back from the kernel stack to the entry stack.
+ *
+ * The %esp register must point to pt_regs on the task stack. It will
+ * first calculate the size of the stack-frame to copy, depending on
+ * whether we return to VM86 mode or not. With that it uses 'rep movsl'
+ * to copy the contents of the stack over to the entry stack.
+ *
+ * We must be very careful here, as we can't trust the contents of the
+ * task-stack once we switched to the entry-stack. When an NMI happens
+ * while on the entry-stack, the NMI handler will switch back to the top
+ * of the task stack, overwriting our stack-frame we are about to copy.
+ * Therefore we switch the stack only after everything is copied over.
+ */
+.macro SWITCH_TO_ENTRY_STACK
+
+ /* Bytes to copy */
+ movl $PTREGS_SIZE, %ecx
+
+#ifdef CONFIG_VM86
+ testl $(X86_EFLAGS_VM), PT_EFLAGS(%esp)
+ jz .Lcopy_pt_regs_\@
+
+ /* Additional 4 registers to copy when returning to VM86 mode */
+ addl $(4 * 4), %ecx
+
+.Lcopy_pt_regs_\@:
+#endif
+
+ /* Initialize source and destination for movsl */
+ movl PER_CPU_VAR(cpu_tss_rw + TSS_sp0), %edi
+ subl %ecx, %edi
+ movl %esp, %esi
+
+ /* Save future stack pointer in %ebx */
+ movl %edi, %ebx
+
+ /* Copy over the stack-frame */
+ shrl $2, %ecx
+ cld
+ rep movsl
+
+ /*
+ * Switch to entry-stack - needs to happen after everything is
+ * copied because the NMI handler will overwrite the task-stack
+ * when on entry-stack
+ */
+ movl %ebx, %esp
+
+.Lend_\@:
+.endm
+
+/*
+ * This macro handles the case when we return to kernel-mode on the iret
+ * path and have to switch back to the entry stack and/or user-cr3
+ *
+ * See the comments below the .Lentry_from_kernel_\@ label in the
+ * SWITCH_TO_KERNEL_STACK macro for more details.
+ */
+.macro PARANOID_EXIT_TO_KERNEL_MODE
+
+ /*
+ * Test if we entered the kernel with the entry-stack. Most
+ * likely we did not, because this code only runs on the
+ * return-to-kernel path.
+ */
+ testl $CS_FROM_ENTRY_STACK, PT_CS(%esp)
+ jz .Lend_\@
+
+ /* Unlikely slow-path */
+
+ /* Clear marker from stack-frame */
+ andl $(~CS_FROM_ENTRY_STACK), PT_CS(%esp)
+
+ /* Copy the remaining task-stack contents to entry-stack */
+ movl %esp, %esi
+ movl PER_CPU_VAR(cpu_tss_rw + TSS_sp0), %edi
+
+ /* Bytes on the task-stack to ecx */
+ movl PER_CPU_VAR(cpu_tss_rw + TSS_sp1), %ecx
+ subl %esi, %ecx
+
+ /* Allocate stack-frame on entry-stack */
+ subl %ecx, %edi
+
+ /*
+ * Save future stack-pointer, we must not switch until the
+ * copy is done, otherwise the NMI handler could destroy the
+ * contents of the task-stack we are about to copy.
+ */
+ movl %edi, %ebx
+
+ /* Do the copy */
+ shrl $2, %ecx
+ cld
+ rep movsl
+
+ /* Safe to switch to entry-stack now */
+ movl %ebx, %esp
+
+ /*
+ * We came from entry-stack and need to check if we also need to
+ * switch back to user cr3.
+ */
+ testl $CS_FROM_USER_CR3, PT_CS(%esp)
+ jz .Lend_\@
+
+ /* Clear marker from stack-frame */
+ andl $(~CS_FROM_USER_CR3), PT_CS(%esp)
+
+ SWITCH_TO_USER_CR3 scratch_reg=%eax
+
+.Lend_\@:
+.endm
+
+/**
+ * idtentry - Macro to generate entry stubs for simple IDT entries
+ * @vector: Vector number
+ * @asmsym: ASM symbol for the entry point
+ * @cfunc: C function to be called
+ * @has_error_code: Hardware pushed error code on stack
+ */
+.macro idtentry vector asmsym cfunc has_error_code:req
+SYM_CODE_START(\asmsym)
+ ASM_CLAC
+ cld
+
+ .if \has_error_code == 0
+ pushl $0 /* Clear the error code */
+ .endif
+
+ /* Push the C-function address into the GS slot */
+ pushl $\cfunc
+ /* Invoke the common exception entry */
+ jmp handle_exception
+SYM_CODE_END(\asmsym)
+.endm
+
+.macro idtentry_irq vector cfunc
+ .p2align CONFIG_X86_L1_CACHE_SHIFT
+SYM_CODE_START_LOCAL(asm_\cfunc)
+ ASM_CLAC
+ SAVE_ALL switch_stacks=1
+ ENCODE_FRAME_POINTER
+ movl %esp, %eax
+ movl PT_ORIG_EAX(%esp), %edx /* get the vector from stack */
+ movl $-1, PT_ORIG_EAX(%esp) /* no syscall to restart */
+ call \cfunc
+ jmp handle_exception_return
+SYM_CODE_END(asm_\cfunc)
+.endm
+
+.macro idtentry_sysvec vector cfunc
+ idtentry \vector asm_\cfunc \cfunc has_error_code=0
+.endm
+
+/*
+ * Include the defines which emit the idt entries which are shared
+ * shared between 32 and 64 bit and emit the __irqentry_text_* markers
+ * so the stacktrace boundary checks work.
+ */
+ .align 16
+ .globl __irqentry_text_start
+__irqentry_text_start:
+
+#include <asm/idtentry.h>
+
+ .align 16
+ .globl __irqentry_text_end
+__irqentry_text_end:
+
+/*
+ * %eax: prev task
+ * %edx: next task
+ */
+.pushsection .text, "ax"
+SYM_CODE_START(__switch_to_asm)
+ /*
+ * Save callee-saved registers
+ * This must match the order in struct inactive_task_frame
+ */
+ pushl %ebp
+ pushl %ebx
+ pushl %edi
+ pushl %esi
+ /*
+ * Flags are saved to prevent AC leakage. This could go
+ * away if objtool would have 32bit support to verify
+ * the STAC/CLAC correctness.
+ */
+ pushfl
+
+ /* switch stack */
+ movl %esp, TASK_threadsp(%eax)
+ movl TASK_threadsp(%edx), %esp
+
+#ifdef CONFIG_STACKPROTECTOR
+ movl TASK_stack_canary(%edx), %ebx
+ movl %ebx, PER_CPU_VAR(__stack_chk_guard)
+#endif
+
+ /*
+ * When switching from a shallower to a deeper call stack
+ * the RSB may either underflow or use entries populated
+ * with userspace addresses. On CPUs where those concerns
+ * exist, overwrite the RSB with entries which capture
+ * speculative execution to prevent attack.
+ */
+ FILL_RETURN_BUFFER %ebx, RSB_CLEAR_LOOPS, X86_FEATURE_RSB_CTXSW
+
+ /* Restore flags or the incoming task to restore AC state. */
+ popfl
+ /* restore callee-saved registers */
+ popl %esi
+ popl %edi
+ popl %ebx
+ popl %ebp
+
+ jmp __switch_to
+SYM_CODE_END(__switch_to_asm)
+.popsection
+
+/*
+ * The unwinder expects the last frame on the stack to always be at the same
+ * offset from the end of the page, which allows it to validate the stack.
+ * Calling schedule_tail() directly would break that convention because its an
+ * asmlinkage function so its argument has to be pushed on the stack. This
+ * wrapper creates a proper "end of stack" frame header before the call.
+ */
+.pushsection .text, "ax"
+SYM_FUNC_START(schedule_tail_wrapper)
+ FRAME_BEGIN
+
+ pushl %eax
+ call schedule_tail
+ popl %eax
+
+ FRAME_END
+ RET
+SYM_FUNC_END(schedule_tail_wrapper)
+.popsection
+
+/*
+ * A newly forked process directly context switches into this address.
+ *
+ * eax: prev task we switched from
+ * ebx: kernel thread func (NULL for user thread)
+ * edi: kernel thread arg
+ */
+.pushsection .text, "ax"
+SYM_CODE_START(ret_from_fork)
+ call schedule_tail_wrapper
+
+ testl %ebx, %ebx
+ jnz 1f /* kernel threads are uncommon */
+
+2:
+ /* When we fork, we trace the syscall return in the child, too. */
+ movl %esp, %eax
+ call syscall_exit_to_user_mode
+ jmp .Lsyscall_32_done
+
+ /* kernel thread */
+1: movl %edi, %eax
+ CALL_NOSPEC ebx
+ /*
+ * A kernel thread is allowed to return here after successfully
+ * calling kernel_execve(). Exit to userspace to complete the execve()
+ * syscall.
+ */
+ movl $0, PT_EAX(%esp)
+ jmp 2b
+SYM_CODE_END(ret_from_fork)
+.popsection
+
+SYM_ENTRY(__begin_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
+/*
+ * All code from here through __end_SYSENTER_singlestep_region is subject
+ * to being single-stepped if a user program sets TF and executes SYSENTER.
+ * There is absolutely nothing that we can do to prevent this from happening
+ * (thanks Intel!). To keep our handling of this situation as simple as
+ * possible, we handle TF just like AC and NT, except that our #DB handler
+ * will ignore all of the single-step traps generated in this range.
+ */
+
+/*
+ * 32-bit SYSENTER entry.
+ *
+ * 32-bit system calls through the vDSO's __kernel_vsyscall enter here
+ * if X86_FEATURE_SEP is available. This is the preferred system call
+ * entry on 32-bit systems.
+ *
+ * The SYSENTER instruction, in principle, should *only* occur in the
+ * vDSO. In practice, a small number of Android devices were shipped
+ * with a copy of Bionic that inlined a SYSENTER instruction. This
+ * never happened in any of Google's Bionic versions -- it only happened
+ * in a narrow range of Intel-provided versions.
+ *
+ * SYSENTER loads SS, ESP, CS, and EIP from previously programmed MSRs.
+ * IF and VM in RFLAGS are cleared (IOW: interrupts are off).
+ * SYSENTER does not save anything on the stack,
+ * and does not save old EIP (!!!), ESP, or EFLAGS.
+ *
+ * To avoid losing track of EFLAGS.VM (and thus potentially corrupting
+ * user and/or vm86 state), we explicitly disable the SYSENTER
+ * instruction in vm86 mode by reprogramming the MSRs.
+ *
+ * Arguments:
+ * eax system call number
+ * ebx arg1
+ * ecx arg2
+ * edx arg3
+ * esi arg4
+ * edi arg5
+ * ebp user stack
+ * 0(%ebp) arg6
+ */
+SYM_FUNC_START(entry_SYSENTER_32)
+ /*
+ * On entry-stack with all userspace-regs live - save and
+ * restore eflags and %eax to use it as scratch-reg for the cr3
+ * switch.
+ */
+ pushfl
+ pushl %eax
+ BUG_IF_WRONG_CR3 no_user_check=1
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%eax
+ popl %eax
+ popfl
+
+ /* Stack empty again, switch to task stack */
+ movl TSS_entry2task_stack(%esp), %esp
+
+.Lsysenter_past_esp:
+ pushl $__USER_DS /* pt_regs->ss */
+ pushl $0 /* pt_regs->sp (placeholder) */
+ pushfl /* pt_regs->flags (except IF = 0) */
+ pushl $__USER_CS /* pt_regs->cs */
+ pushl $0 /* pt_regs->ip = 0 (placeholder) */
+ pushl %eax /* pt_regs->orig_ax */
+ SAVE_ALL pt_regs_ax=$-ENOSYS /* save rest, stack already switched */
+
+ /*
+ * SYSENTER doesn't filter flags, so we need to clear NT, AC
+ * and TF ourselves. To save a few cycles, we can check whether
+ * either was set instead of doing an unconditional popfq.
+ * This needs to happen before enabling interrupts so that
+ * we don't get preempted with NT set.
+ *
+ * If TF is set, we will single-step all the way to here -- do_debug
+ * will ignore all the traps. (Yes, this is slow, but so is
+ * single-stepping in general. This allows us to avoid having
+ * a more complicated code to handle the case where a user program
+ * forces us to single-step through the SYSENTER entry code.)
+ *
+ * NB.: .Lsysenter_fix_flags is a label with the code under it moved
+ * out-of-line as an optimization: NT is unlikely to be set in the
+ * majority of the cases and instead of polluting the I$ unnecessarily,
+ * we're keeping that code behind a branch which will predict as
+ * not-taken and therefore its instructions won't be fetched.
+ */
+ testl $X86_EFLAGS_NT|X86_EFLAGS_AC|X86_EFLAGS_TF, PT_EFLAGS(%esp)
+ jnz .Lsysenter_fix_flags
+.Lsysenter_flags_fixed:
+
+ movl %esp, %eax
+ call do_SYSENTER_32
+ testl %eax, %eax
+ jz .Lsyscall_32_done
+
+ STACKLEAK_ERASE
+
+ /* Opportunistic SYSEXIT */
+
+ /*
+ * Setup entry stack - we keep the pointer in %eax and do the
+ * switch after almost all user-state is restored.
+ */
+
+ /* Load entry stack pointer and allocate frame for eflags/eax */
+ movl PER_CPU_VAR(cpu_tss_rw + TSS_sp0), %eax
+ subl $(2*4), %eax
+
+ /* Copy eflags and eax to entry stack */
+ movl PT_EFLAGS(%esp), %edi
+ movl PT_EAX(%esp), %esi
+ movl %edi, (%eax)
+ movl %esi, 4(%eax)
+
+ /* Restore user registers and segments */
+ movl PT_EIP(%esp), %edx /* pt_regs->ip */
+ movl PT_OLDESP(%esp), %ecx /* pt_regs->sp */
+1: mov PT_FS(%esp), %fs
+
+ popl %ebx /* pt_regs->bx */
+ addl $2*4, %esp /* skip pt_regs->cx and pt_regs->dx */
+ popl %esi /* pt_regs->si */
+ popl %edi /* pt_regs->di */
+ popl %ebp /* pt_regs->bp */
+
+ /* Switch to entry stack */
+ movl %eax, %esp
+
+ /* Now ready to switch the cr3 */
+ SWITCH_TO_USER_CR3 scratch_reg=%eax
+
+ /*
+ * Restore all flags except IF. (We restore IF separately because
+ * STI gives a one-instruction window in which we won't be interrupted,
+ * whereas POPF does not.)
+ */
+ btrl $X86_EFLAGS_IF_BIT, (%esp)
+ BUG_IF_WRONG_CR3 no_user_check=1
+ popfl
+ popl %eax
+
+ /*
+ * Return back to the vDSO, which will pop ecx and edx.
+ * Don't bother with DS and ES (they already contain __USER_DS).
+ */
+ sti
+ sysexit
+
+2: movl $0, PT_FS(%esp)
+ jmp 1b
+ _ASM_EXTABLE(1b, 2b)
+
+.Lsysenter_fix_flags:
+ pushl $X86_EFLAGS_FIXED
+ popfl
+ jmp .Lsysenter_flags_fixed
+SYM_ENTRY(__end_SYSENTER_singlestep_region, SYM_L_GLOBAL, SYM_A_NONE)
+SYM_FUNC_END(entry_SYSENTER_32)
+
+/*
+ * 32-bit legacy system call entry.
+ *
+ * 32-bit x86 Linux system calls traditionally used the INT $0x80
+ * instruction. INT $0x80 lands here.
+ *
+ * This entry point can be used by any 32-bit perform system calls.
+ * Instances of INT $0x80 can be found inline in various programs and
+ * libraries. It is also used by the vDSO's __kernel_vsyscall
+ * fallback for hardware that doesn't support a faster entry method.
+ * Restarted 32-bit system calls also fall back to INT $0x80
+ * regardless of what instruction was originally used to do the system
+ * call. (64-bit programs can use INT $0x80 as well, but they can
+ * only run on 64-bit kernels and therefore land in
+ * entry_INT80_compat.)
+ *
+ * This is considered a slow path. It is not used by most libc
+ * implementations on modern hardware except during process startup.
+ *
+ * Arguments:
+ * eax system call number
+ * ebx arg1
+ * ecx arg2
+ * edx arg3
+ * esi arg4
+ * edi arg5
+ * ebp arg6
+ */
+SYM_FUNC_START(entry_INT80_32)
+ ASM_CLAC
+ pushl %eax /* pt_regs->orig_ax */
+
+ SAVE_ALL pt_regs_ax=$-ENOSYS switch_stacks=1 /* save rest */
+
+ movl %esp, %eax
+ call do_int80_syscall_32
+.Lsyscall_32_done:
+ STACKLEAK_ERASE
+
+restore_all_switch_stack:
+ SWITCH_TO_ENTRY_STACK
+ CHECK_AND_APPLY_ESPFIX
+
+ /* Switch back to user CR3 */
+ SWITCH_TO_USER_CR3 scratch_reg=%eax
+
+ BUG_IF_WRONG_CR3
+
+ /* Restore user state */
+ RESTORE_REGS pop=4 # skip orig_eax/error_code
+.Lirq_return:
+ /*
+ * ARCH_HAS_MEMBARRIER_SYNC_CORE rely on IRET core serialization
+ * when returning from IPI handler and when returning from
+ * scheduler to user-space.
+ */
+ iret
+
+.Lasm_iret_error:
+ pushl $0 # no error code
+ pushl $iret_error
+
+#ifdef CONFIG_DEBUG_ENTRY
+ /*
+ * The stack-frame here is the one that iret faulted on, so its a
+ * return-to-user frame. We are on kernel-cr3 because we come here from
+ * the fixup code. This confuses the CR3 checker, so switch to user-cr3
+ * as the checker expects it.
+ */
+ pushl %eax
+ SWITCH_TO_USER_CR3 scratch_reg=%eax
+ popl %eax
+#endif
+
+ jmp handle_exception
+
+ _ASM_EXTABLE(.Lirq_return, .Lasm_iret_error)
+SYM_FUNC_END(entry_INT80_32)
+
+.macro FIXUP_ESPFIX_STACK
+/*
+ * Switch back for ESPFIX stack to the normal zerobased stack
+ *
+ * We can't call C functions using the ESPFIX stack. This code reads
+ * the high word of the segment base from the GDT and swiches to the
+ * normal stack and adjusts ESP with the matching offset.
+ *
+ * We might be on user CR3 here, so percpu data is not mapped and we can't
+ * access the GDT through the percpu segment. Instead, use SGDT to find
+ * the cpu_entry_area alias of the GDT.
+ */
+#ifdef CONFIG_X86_ESPFIX32
+ /* fixup the stack */
+ pushl %ecx
+ subl $2*4, %esp
+ sgdt (%esp)
+ movl 2(%esp), %ecx /* GDT address */
+ /*
+ * Careful: ECX is a linear pointer, so we need to force base
+ * zero. %cs is the only known-linear segment we have right now.
+ */
+ mov %cs:GDT_ESPFIX_OFFSET + 4(%ecx), %al /* bits 16..23 */
+ mov %cs:GDT_ESPFIX_OFFSET + 7(%ecx), %ah /* bits 24..31 */
+ shl $16, %eax
+ addl $2*4, %esp
+ popl %ecx
+ addl %esp, %eax /* the adjusted stack pointer */
+ pushl $__KERNEL_DS
+ pushl %eax
+ lss (%esp), %esp /* switch to the normal stack segment */
+#endif
+.endm
+
+.macro UNWIND_ESPFIX_STACK
+ /* It's safe to clobber %eax, all other regs need to be preserved */
+#ifdef CONFIG_X86_ESPFIX32
+ movl %ss, %eax
+ /* see if on espfix stack */
+ cmpw $__ESPFIX_SS, %ax
+ jne .Lno_fixup_\@
+ /* switch to normal stack */
+ FIXUP_ESPFIX_STACK
+.Lno_fixup_\@:
+#endif
+.endm
+
+SYM_CODE_START_LOCAL_NOALIGN(handle_exception)
+ /* the function address is in %gs's slot on the stack */
+ SAVE_ALL switch_stacks=1 skip_gs=1 unwind_espfix=1
+ ENCODE_FRAME_POINTER
+
+ movl PT_GS(%esp), %edi # get the function address
+
+ /* fixup orig %eax */
+ movl PT_ORIG_EAX(%esp), %edx # get the error code
+ movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart
+
+ movl %esp, %eax # pt_regs pointer
+ CALL_NOSPEC edi
+
+handle_exception_return:
+#ifdef CONFIG_VM86
+ movl PT_EFLAGS(%esp), %eax # mix EFLAGS and CS
+ movb PT_CS(%esp), %al
+ andl $(X86_EFLAGS_VM | SEGMENT_RPL_MASK), %eax
+#else
+ /*
+ * We can be coming here from child spawned by kernel_thread().
+ */
+ movl PT_CS(%esp), %eax
+ andl $SEGMENT_RPL_MASK, %eax
+#endif
+ cmpl $USER_RPL, %eax # returning to v8086 or userspace ?
+ jnb ret_to_user
+
+ PARANOID_EXIT_TO_KERNEL_MODE
+ BUG_IF_WRONG_CR3
+ RESTORE_REGS 4
+ jmp .Lirq_return
+
+ret_to_user:
+ movl %esp, %eax
+ jmp restore_all_switch_stack
+SYM_CODE_END(handle_exception)
+
+SYM_CODE_START(asm_exc_double_fault)
+1:
+ /*
+ * This is a task gate handler, not an interrupt gate handler.
+ * The error code is on the stack, but the stack is otherwise
+ * empty. Interrupts are off. Our state is sane with the following
+ * exceptions:
+ *
+ * - CR0.TS is set. "TS" literally means "task switched".
+ * - EFLAGS.NT is set because we're a "nested task".
+ * - The doublefault TSS has back_link set and has been marked busy.
+ * - TR points to the doublefault TSS and the normal TSS is busy.
+ * - CR3 is the normal kernel PGD. This would be delightful, except
+ * that the CPU didn't bother to save the old CR3 anywhere. This
+ * would make it very awkward to return back to the context we came
+ * from.
+ *
+ * The rest of EFLAGS is sanitized for us, so we don't need to
+ * worry about AC or DF.
+ *
+ * Don't even bother popping the error code. It's always zero,
+ * and ignoring it makes us a bit more robust against buggy
+ * hypervisor task gate implementations.
+ *
+ * We will manually undo the task switch instead of doing a
+ * task-switching IRET.
+ */
+
+ clts /* clear CR0.TS */
+ pushl $X86_EFLAGS_FIXED
+ popfl /* clear EFLAGS.NT */
+
+ call doublefault_shim
+
+ /* We don't support returning, so we have no IRET here. */
+1:
+ hlt
+ jmp 1b
+SYM_CODE_END(asm_exc_double_fault)
+
+/*
+ * NMI is doubly nasty. It can happen on the first instruction of
+ * entry_SYSENTER_32 (just like #DB), but it can also interrupt the beginning
+ * of the #DB handler even if that #DB in turn hit before entry_SYSENTER_32
+ * switched stacks. We handle both conditions by simply checking whether we
+ * interrupted kernel code running on the SYSENTER stack.
+ */
+SYM_CODE_START(asm_exc_nmi)
+ ASM_CLAC
+
+#ifdef CONFIG_X86_ESPFIX32
+ /*
+ * ESPFIX_SS is only ever set on the return to user path
+ * after we've switched to the entry stack.
+ */
+ pushl %eax
+ movl %ss, %eax
+ cmpw $__ESPFIX_SS, %ax
+ popl %eax
+ je .Lnmi_espfix_stack
+#endif
+
+ pushl %eax # pt_regs->orig_ax
+ SAVE_ALL_NMI cr3_reg=%edi
+ ENCODE_FRAME_POINTER
+ xorl %edx, %edx # zero error code
+ movl %esp, %eax # pt_regs pointer
+
+ /* Are we currently on the SYSENTER stack? */
+ movl PER_CPU_VAR(cpu_entry_area), %ecx
+ addl $CPU_ENTRY_AREA_entry_stack + SIZEOF_entry_stack, %ecx
+ subl %eax, %ecx /* ecx = (end of entry_stack) - esp */
+ cmpl $SIZEOF_entry_stack, %ecx
+ jb .Lnmi_from_sysenter_stack
+
+ /* Not on SYSENTER stack. */
+ call exc_nmi
+ jmp .Lnmi_return
+
+.Lnmi_from_sysenter_stack:
+ /*
+ * We're on the SYSENTER stack. Switch off. No one (not even debug)
+ * is using the thread stack right now, so it's safe for us to use it.
+ */
+ movl %esp, %ebx
+ movl PER_CPU_VAR(pcpu_hot + X86_top_of_stack), %esp
+ call exc_nmi
+ movl %ebx, %esp
+
+.Lnmi_return:
+#ifdef CONFIG_X86_ESPFIX32
+ testl $CS_FROM_ESPFIX, PT_CS(%esp)
+ jnz .Lnmi_from_espfix
+#endif
+
+ CHECK_AND_APPLY_ESPFIX
+ RESTORE_ALL_NMI cr3_reg=%edi pop=4
+ jmp .Lirq_return
+
+#ifdef CONFIG_X86_ESPFIX32
+.Lnmi_espfix_stack:
+ /*
+ * Create the pointer to LSS back
+ */
+ pushl %ss
+ pushl %esp
+ addl $4, (%esp)
+
+ /* Copy the (short) IRET frame */
+ pushl 4*4(%esp) # flags
+ pushl 4*4(%esp) # cs
+ pushl 4*4(%esp) # ip
+
+ pushl %eax # orig_ax
+
+ SAVE_ALL_NMI cr3_reg=%edi unwind_espfix=1
+ ENCODE_FRAME_POINTER
+
+ /* clear CS_FROM_KERNEL, set CS_FROM_ESPFIX */
+ xorl $(CS_FROM_ESPFIX | CS_FROM_KERNEL), PT_CS(%esp)
+
+ xorl %edx, %edx # zero error code
+ movl %esp, %eax # pt_regs pointer
+ jmp .Lnmi_from_sysenter_stack
+
+.Lnmi_from_espfix:
+ RESTORE_ALL_NMI cr3_reg=%edi
+ /*
+ * Because we cleared CS_FROM_KERNEL, IRET_FRAME 'forgot' to
+ * fix up the gap and long frame:
+ *
+ * 3 - original frame (exception)
+ * 2 - ESPFIX block (above)
+ * 6 - gap (FIXUP_FRAME)
+ * 5 - long frame (FIXUP_FRAME)
+ * 1 - orig_ax
+ */
+ lss (1+5+6)*4(%esp), %esp # back to espfix stack
+ jmp .Lirq_return
+#endif
+SYM_CODE_END(asm_exc_nmi)
+
+.pushsection .text, "ax"
+SYM_CODE_START(rewind_stack_and_make_dead)
+ /* Prevent any naive code from trying to unwind to our caller. */
+ xorl %ebp, %ebp
+
+ movl PER_CPU_VAR(pcpu_hot + X86_top_of_stack), %esi
+ leal -TOP_OF_KERNEL_STACK_PADDING-PTREGS_SIZE(%esi), %esp
+
+ call make_task_dead
+1: jmp 1b
+SYM_CODE_END(rewind_stack_and_make_dead)
+.popsection
diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S
new file mode 100644
index 000000000000..f31e286c2977
--- /dev/null
+++ b/arch/x86/entry/entry_64.S
@@ -0,0 +1,1543 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * linux/arch/x86_64/entry.S
+ *
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ * Copyright (C) 2000, 2001, 2002 Andi Kleen SuSE Labs
+ * Copyright (C) 2000 Pavel Machek <pavel@suse.cz>
+ *
+ * entry.S contains the system-call and fault low-level handling routines.
+ *
+ * Some of this is documented in Documentation/arch/x86/entry_64.rst
+ *
+ * A note on terminology:
+ * - iret frame: Architecture defined interrupt frame from SS to RIP
+ * at the top of the kernel process stack.
+ *
+ * Some macro usage:
+ * - SYM_FUNC_START/END:Define functions in the symbol table.
+ * - idtentry: Define exception entry points.
+ */
+#include <linux/linkage.h>
+#include <asm/segment.h>
+#include <asm/cache.h>
+#include <asm/errno.h>
+#include <asm/asm-offsets.h>
+#include <asm/msr.h>
+#include <asm/unistd.h>
+#include <asm/thread_info.h>
+#include <asm/hw_irq.h>
+#include <asm/page_types.h>
+#include <asm/irqflags.h>
+#include <asm/paravirt.h>
+#include <asm/percpu.h>
+#include <asm/asm.h>
+#include <asm/smap.h>
+#include <asm/pgtable_types.h>
+#include <asm/export.h>
+#include <asm/frame.h>
+#include <asm/trapnr.h>
+#include <asm/nospec-branch.h>
+#include <asm/fsgsbase.h>
+#include <linux/err.h>
+
+#include "calling.h"
+
+.code64
+.section .entry.text, "ax"
+
+/*
+ * 64-bit SYSCALL instruction entry. Up to 6 arguments in registers.
+ *
+ * This is the only entry point used for 64-bit system calls. The
+ * hardware interface is reasonably well designed and the register to
+ * argument mapping Linux uses fits well with the registers that are
+ * available when SYSCALL is used.
+ *
+ * SYSCALL instructions can be found inlined in libc implementations as
+ * well as some other programs and libraries. There are also a handful
+ * of SYSCALL instructions in the vDSO used, for example, as a
+ * clock_gettimeofday fallback.
+ *
+ * 64-bit SYSCALL saves rip to rcx, clears rflags.RF, then saves rflags to r11,
+ * then loads new ss, cs, and rip from previously programmed MSRs.
+ * rflags gets masked by a value from another MSR (so CLD and CLAC
+ * are not needed). SYSCALL does not save anything on the stack
+ * and does not change rsp.
+ *
+ * Registers on entry:
+ * rax system call number
+ * rcx return address
+ * r11 saved rflags (note: r11 is callee-clobbered register in C ABI)
+ * rdi arg0
+ * rsi arg1
+ * rdx arg2
+ * r10 arg3 (needs to be moved to rcx to conform to C ABI)
+ * r8 arg4
+ * r9 arg5
+ * (note: r12-r15, rbp, rbx are callee-preserved in C ABI)
+ *
+ * Only called from user space.
+ *
+ * When user can change pt_regs->foo always force IRET. That is because
+ * it deals with uncanonical addresses better. SYSRET has trouble
+ * with them due to bugs in both AMD and Intel CPUs.
+ */
+
+SYM_CODE_START(entry_SYSCALL_64)
+ UNWIND_HINT_ENTRY
+ ENDBR
+
+ swapgs
+ /* tss.sp2 is scratch space. */
+ movq %rsp, PER_CPU_VAR(cpu_tss_rw + TSS_sp2)
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%rsp
+ movq PER_CPU_VAR(pcpu_hot + X86_top_of_stack), %rsp
+
+SYM_INNER_LABEL(entry_SYSCALL_64_safe_stack, SYM_L_GLOBAL)
+ ANNOTATE_NOENDBR
+
+ /* Construct struct pt_regs on stack */
+ pushq $__USER_DS /* pt_regs->ss */
+ pushq PER_CPU_VAR(cpu_tss_rw + TSS_sp2) /* pt_regs->sp */
+ pushq %r11 /* pt_regs->flags */
+ pushq $__USER_CS /* pt_regs->cs */
+ pushq %rcx /* pt_regs->ip */
+SYM_INNER_LABEL(entry_SYSCALL_64_after_hwframe, SYM_L_GLOBAL)
+ pushq %rax /* pt_regs->orig_ax */
+
+ PUSH_AND_CLEAR_REGS rax=$-ENOSYS
+
+ /* IRQs are off. */
+ movq %rsp, %rdi
+ /* Sign extend the lower 32bit as syscall numbers are treated as int */
+ movslq %eax, %rsi
+
+ /* clobbers %rax, make sure it is after saving the syscall nr */
+ IBRS_ENTER
+ UNTRAIN_RET
+
+ call do_syscall_64 /* returns with IRQs disabled */
+
+ /*
+ * Try to use SYSRET instead of IRET if we're returning to
+ * a completely clean 64-bit userspace context. If we're not,
+ * go to the slow exit path.
+ * In the Xen PV case we must use iret anyway.
+ */
+
+ ALTERNATIVE "", "jmp swapgs_restore_regs_and_return_to_usermode", \
+ X86_FEATURE_XENPV
+
+ movq RCX(%rsp), %rcx
+ movq RIP(%rsp), %r11
+
+ cmpq %rcx, %r11 /* SYSRET requires RCX == RIP */
+ jne swapgs_restore_regs_and_return_to_usermode
+
+ /*
+ * On Intel CPUs, SYSRET with non-canonical RCX/RIP will #GP
+ * in kernel space. This essentially lets the user take over
+ * the kernel, since userspace controls RSP.
+ *
+ * If width of "canonical tail" ever becomes variable, this will need
+ * to be updated to remain correct on both old and new CPUs.
+ *
+ * Change top bits to match most significant bit (47th or 56th bit
+ * depending on paging mode) in the address.
+ */
+#ifdef CONFIG_X86_5LEVEL
+ ALTERNATIVE "shl $(64 - 48), %rcx; sar $(64 - 48), %rcx", \
+ "shl $(64 - 57), %rcx; sar $(64 - 57), %rcx", X86_FEATURE_LA57
+#else
+ shl $(64 - (__VIRTUAL_MASK_SHIFT+1)), %rcx
+ sar $(64 - (__VIRTUAL_MASK_SHIFT+1)), %rcx
+#endif
+
+ /* If this changed %rcx, it was not canonical */
+ cmpq %rcx, %r11
+ jne swapgs_restore_regs_and_return_to_usermode
+
+ cmpq $__USER_CS, CS(%rsp) /* CS must match SYSRET */
+ jne swapgs_restore_regs_and_return_to_usermode
+
+ movq R11(%rsp), %r11
+ cmpq %r11, EFLAGS(%rsp) /* R11 == RFLAGS */
+ jne swapgs_restore_regs_and_return_to_usermode
+
+ /*
+ * SYSCALL clears RF when it saves RFLAGS in R11 and SYSRET cannot
+ * restore RF properly. If the slowpath sets it for whatever reason, we
+ * need to restore it correctly.
+ *
+ * SYSRET can restore TF, but unlike IRET, restoring TF results in a
+ * trap from userspace immediately after SYSRET. This would cause an
+ * infinite loop whenever #DB happens with register state that satisfies
+ * the opportunistic SYSRET conditions. For example, single-stepping
+ * this user code:
+ *
+ * movq $stuck_here, %rcx
+ * pushfq
+ * popq %r11
+ * stuck_here:
+ *
+ * would never get past 'stuck_here'.
+ */
+ testq $(X86_EFLAGS_RF|X86_EFLAGS_TF), %r11
+ jnz swapgs_restore_regs_and_return_to_usermode
+
+ /* nothing to check for RSP */
+
+ cmpq $__USER_DS, SS(%rsp) /* SS must match SYSRET */
+ jne swapgs_restore_regs_and_return_to_usermode
+
+ /*
+ * We win! This label is here just for ease of understanding
+ * perf profiles. Nothing jumps here.
+ */
+syscall_return_via_sysret:
+ IBRS_EXIT
+ POP_REGS pop_rdi=0
+
+ /*
+ * Now all regs are restored except RSP and RDI.
+ * Save old stack pointer and switch to trampoline stack.
+ */
+ movq %rsp, %rdi
+ movq PER_CPU_VAR(cpu_tss_rw + TSS_sp0), %rsp
+ UNWIND_HINT_END_OF_STACK
+
+ pushq RSP-RDI(%rdi) /* RSP */
+ pushq (%rdi) /* RDI */
+
+ /*
+ * We are on the trampoline stack. All regs except RDI are live.
+ * We can do future final exit work right here.
+ */
+ STACKLEAK_ERASE_NOCLOBBER
+
+ SWITCH_TO_USER_CR3_STACK scratch_reg=%rdi
+
+ popq %rdi
+ popq %rsp
+SYM_INNER_LABEL(entry_SYSRETQ_unsafe_stack, SYM_L_GLOBAL)
+ ANNOTATE_NOENDBR
+ swapgs
+ sysretq
+SYM_INNER_LABEL(entry_SYSRETQ_end, SYM_L_GLOBAL)
+ ANNOTATE_NOENDBR
+ int3
+SYM_CODE_END(entry_SYSCALL_64)
+
+/*
+ * %rdi: prev task
+ * %rsi: next task
+ */
+.pushsection .text, "ax"
+SYM_FUNC_START(__switch_to_asm)
+ /*
+ * Save callee-saved registers
+ * This must match the order in inactive_task_frame
+ */
+ pushq %rbp
+ pushq %rbx
+ pushq %r12
+ pushq %r13
+ pushq %r14
+ pushq %r15
+
+ /* switch stack */
+ movq %rsp, TASK_threadsp(%rdi)
+ movq TASK_threadsp(%rsi), %rsp
+
+#ifdef CONFIG_STACKPROTECTOR
+ movq TASK_stack_canary(%rsi), %rbx
+ movq %rbx, PER_CPU_VAR(fixed_percpu_data) + FIXED_stack_canary
+#endif
+
+ /*
+ * When switching from a shallower to a deeper call stack
+ * the RSB may either underflow or use entries populated
+ * with userspace addresses. On CPUs where those concerns
+ * exist, overwrite the RSB with entries which capture
+ * speculative execution to prevent attack.
+ */
+ FILL_RETURN_BUFFER %r12, RSB_CLEAR_LOOPS, X86_FEATURE_RSB_CTXSW
+
+ /* restore callee-saved registers */
+ popq %r15
+ popq %r14
+ popq %r13
+ popq %r12
+ popq %rbx
+ popq %rbp
+
+ jmp __switch_to
+SYM_FUNC_END(__switch_to_asm)
+.popsection
+
+/*
+ * A newly forked process directly context switches into this address.
+ *
+ * rax: prev task we switched from
+ * rbx: kernel thread func (NULL for user thread)
+ * r12: kernel thread arg
+ */
+.pushsection .text, "ax"
+ __FUNC_ALIGN
+SYM_CODE_START_NOALIGN(ret_from_fork)
+ UNWIND_HINT_END_OF_STACK
+ ANNOTATE_NOENDBR // copy_thread
+ CALL_DEPTH_ACCOUNT
+ movq %rax, %rdi
+ call schedule_tail /* rdi: 'prev' task parameter */
+
+ testq %rbx, %rbx /* from kernel_thread? */
+ jnz 1f /* kernel threads are uncommon */
+
+2:
+ UNWIND_HINT_REGS
+ movq %rsp, %rdi
+ call syscall_exit_to_user_mode /* returns with IRQs disabled */
+ jmp swapgs_restore_regs_and_return_to_usermode
+
+1:
+ /* kernel thread */
+ UNWIND_HINT_END_OF_STACK
+ movq %r12, %rdi
+ CALL_NOSPEC rbx
+ /*
+ * A kernel thread is allowed to return here after successfully
+ * calling kernel_execve(). Exit to userspace to complete the execve()
+ * syscall.
+ */
+ movq $0, RAX(%rsp)
+ jmp 2b
+SYM_CODE_END(ret_from_fork)
+.popsection
+
+.macro DEBUG_ENTRY_ASSERT_IRQS_OFF
+#ifdef CONFIG_DEBUG_ENTRY
+ pushq %rax
+ SAVE_FLAGS
+ testl $X86_EFLAGS_IF, %eax
+ jz .Lokay_\@
+ ud2
+.Lokay_\@:
+ popq %rax
+#endif
+.endm
+
+SYM_CODE_START(xen_error_entry)
+ ANNOTATE_NOENDBR
+ UNWIND_HINT_FUNC
+ PUSH_AND_CLEAR_REGS save_ret=1
+ ENCODE_FRAME_POINTER 8
+ UNTRAIN_RET_FROM_CALL
+ RET
+SYM_CODE_END(xen_error_entry)
+
+/**
+ * idtentry_body - Macro to emit code calling the C function
+ * @cfunc: C function to be called
+ * @has_error_code: Hardware pushed error code on stack
+ */
+.macro idtentry_body cfunc has_error_code:req
+
+ /*
+ * Call error_entry() and switch to the task stack if from userspace.
+ *
+ * When in XENPV, it is already in the task stack, and it can't fault
+ * for native_iret() nor native_load_gs_index() since XENPV uses its
+ * own pvops for IRET and load_gs_index(). And it doesn't need to
+ * switch the CR3. So it can skip invoking error_entry().
+ */
+ ALTERNATIVE "call error_entry; movq %rax, %rsp", \
+ "call xen_error_entry", X86_FEATURE_XENPV
+
+ ENCODE_FRAME_POINTER
+ UNWIND_HINT_REGS
+
+ movq %rsp, %rdi /* pt_regs pointer into 1st argument*/
+
+ .if \has_error_code == 1
+ movq ORIG_RAX(%rsp), %rsi /* get error code into 2nd argument*/
+ movq $-1, ORIG_RAX(%rsp) /* no syscall to restart */
+ .endif
+
+ call \cfunc
+
+ /* For some configurations \cfunc ends up being a noreturn. */
+ REACHABLE
+
+ jmp error_return
+.endm
+
+/**
+ * idtentry - Macro to generate entry stubs for simple IDT entries
+ * @vector: Vector number
+ * @asmsym: ASM symbol for the entry point
+ * @cfunc: C function to be called
+ * @has_error_code: Hardware pushed error code on stack
+ *
+ * The macro emits code to set up the kernel context for straight forward
+ * and simple IDT entries. No IST stack, no paranoid entry checks.
+ */
+.macro idtentry vector asmsym cfunc has_error_code:req
+SYM_CODE_START(\asmsym)
+
+ .if \vector == X86_TRAP_BP
+ /* #BP advances %rip to the next instruction */
+ UNWIND_HINT_IRET_ENTRY offset=\has_error_code*8 signal=0
+ .else
+ UNWIND_HINT_IRET_ENTRY offset=\has_error_code*8
+ .endif
+
+ ENDBR
+ ASM_CLAC
+ cld
+
+ .if \has_error_code == 0
+ pushq $-1 /* ORIG_RAX: no syscall to restart */
+ .endif
+
+ .if \vector == X86_TRAP_BP
+ /*
+ * If coming from kernel space, create a 6-word gap to allow the
+ * int3 handler to emulate a call instruction.
+ */
+ testb $3, CS-ORIG_RAX(%rsp)
+ jnz .Lfrom_usermode_no_gap_\@
+ .rept 6
+ pushq 5*8(%rsp)
+ .endr
+ UNWIND_HINT_IRET_REGS offset=8
+.Lfrom_usermode_no_gap_\@:
+ .endif
+
+ idtentry_body \cfunc \has_error_code
+
+_ASM_NOKPROBE(\asmsym)
+SYM_CODE_END(\asmsym)
+.endm
+
+/*
+ * Interrupt entry/exit.
+ *
+ + The interrupt stubs push (vector) onto the stack, which is the error_code
+ * position of idtentry exceptions, and jump to one of the two idtentry points
+ * (common/spurious).
+ *
+ * common_interrupt is a hotpath, align it to a cache line
+ */
+.macro idtentry_irq vector cfunc
+ .p2align CONFIG_X86_L1_CACHE_SHIFT
+ idtentry \vector asm_\cfunc \cfunc has_error_code=1
+.endm
+
+/*
+ * System vectors which invoke their handlers directly and are not
+ * going through the regular common device interrupt handling code.
+ */
+.macro idtentry_sysvec vector cfunc
+ idtentry \vector asm_\cfunc \cfunc has_error_code=0
+.endm
+
+/**
+ * idtentry_mce_db - Macro to generate entry stubs for #MC and #DB
+ * @vector: Vector number
+ * @asmsym: ASM symbol for the entry point
+ * @cfunc: C function to be called
+ *
+ * The macro emits code to set up the kernel context for #MC and #DB
+ *
+ * If the entry comes from user space it uses the normal entry path
+ * including the return to user space work and preemption checks on
+ * exit.
+ *
+ * If hits in kernel mode then it needs to go through the paranoid
+ * entry as the exception can hit any random state. No preemption
+ * check on exit to keep the paranoid path simple.
+ */
+.macro idtentry_mce_db vector asmsym cfunc
+SYM_CODE_START(\asmsym)
+ UNWIND_HINT_IRET_ENTRY
+ ENDBR
+ ASM_CLAC
+ cld
+
+ pushq $-1 /* ORIG_RAX: no syscall to restart */
+
+ /*
+ * If the entry is from userspace, switch stacks and treat it as
+ * a normal entry.
+ */
+ testb $3, CS-ORIG_RAX(%rsp)
+ jnz .Lfrom_usermode_switch_stack_\@
+
+ /* paranoid_entry returns GS information for paranoid_exit in EBX. */
+ call paranoid_entry
+
+ UNWIND_HINT_REGS
+
+ movq %rsp, %rdi /* pt_regs pointer */
+
+ call \cfunc
+
+ jmp paranoid_exit
+
+ /* Switch to the regular task stack and use the noist entry point */
+.Lfrom_usermode_switch_stack_\@:
+ idtentry_body noist_\cfunc, has_error_code=0
+
+_ASM_NOKPROBE(\asmsym)
+SYM_CODE_END(\asmsym)
+.endm
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+/**
+ * idtentry_vc - Macro to generate entry stub for #VC
+ * @vector: Vector number
+ * @asmsym: ASM symbol for the entry point
+ * @cfunc: C function to be called
+ *
+ * The macro emits code to set up the kernel context for #VC. The #VC handler
+ * runs on an IST stack and needs to be able to cause nested #VC exceptions.
+ *
+ * To make this work the #VC entry code tries its best to pretend it doesn't use
+ * an IST stack by switching to the task stack if coming from user-space (which
+ * includes early SYSCALL entry path) or back to the stack in the IRET frame if
+ * entered from kernel-mode.
+ *
+ * If entered from kernel-mode the return stack is validated first, and if it is
+ * not safe to use (e.g. because it points to the entry stack) the #VC handler
+ * will switch to a fall-back stack (VC2) and call a special handler function.
+ *
+ * The macro is only used for one vector, but it is planned to be extended in
+ * the future for the #HV exception.
+ */
+.macro idtentry_vc vector asmsym cfunc
+SYM_CODE_START(\asmsym)
+ UNWIND_HINT_IRET_ENTRY
+ ENDBR
+ ASM_CLAC
+ cld
+
+ /*
+ * If the entry is from userspace, switch stacks and treat it as
+ * a normal entry.
+ */
+ testb $3, CS-ORIG_RAX(%rsp)
+ jnz .Lfrom_usermode_switch_stack_\@
+
+ /*
+ * paranoid_entry returns SWAPGS flag for paranoid_exit in EBX.
+ * EBX == 0 -> SWAPGS, EBX == 1 -> no SWAPGS
+ */
+ call paranoid_entry
+
+ UNWIND_HINT_REGS
+
+ /*
+ * Switch off the IST stack to make it free for nested exceptions. The
+ * vc_switch_off_ist() function will switch back to the interrupted
+ * stack if it is safe to do so. If not it switches to the VC fall-back
+ * stack.
+ */
+ movq %rsp, %rdi /* pt_regs pointer */
+ call vc_switch_off_ist
+ movq %rax, %rsp /* Switch to new stack */
+
+ ENCODE_FRAME_POINTER
+ UNWIND_HINT_REGS
+
+ /* Update pt_regs */
+ movq ORIG_RAX(%rsp), %rsi /* get error code into 2nd argument*/
+ movq $-1, ORIG_RAX(%rsp) /* no syscall to restart */
+
+ movq %rsp, %rdi /* pt_regs pointer */
+
+ call kernel_\cfunc
+
+ /*
+ * No need to switch back to the IST stack. The current stack is either
+ * identical to the stack in the IRET frame or the VC fall-back stack,
+ * so it is definitely mapped even with PTI enabled.
+ */
+ jmp paranoid_exit
+
+ /* Switch to the regular task stack */
+.Lfrom_usermode_switch_stack_\@:
+ idtentry_body user_\cfunc, has_error_code=1
+
+_ASM_NOKPROBE(\asmsym)
+SYM_CODE_END(\asmsym)
+.endm
+#endif
+
+/*
+ * Double fault entry. Straight paranoid. No checks from which context
+ * this comes because for the espfix induced #DF this would do the wrong
+ * thing.
+ */
+.macro idtentry_df vector asmsym cfunc
+SYM_CODE_START(\asmsym)
+ UNWIND_HINT_IRET_ENTRY offset=8
+ ENDBR
+ ASM_CLAC
+ cld
+
+ /* paranoid_entry returns GS information for paranoid_exit in EBX. */
+ call paranoid_entry
+ UNWIND_HINT_REGS
+
+ movq %rsp, %rdi /* pt_regs pointer into first argument */
+ movq ORIG_RAX(%rsp), %rsi /* get error code into 2nd argument*/
+ movq $-1, ORIG_RAX(%rsp) /* no syscall to restart */
+ call \cfunc
+
+ /* For some configurations \cfunc ends up being a noreturn. */
+ REACHABLE
+
+ jmp paranoid_exit
+
+_ASM_NOKPROBE(\asmsym)
+SYM_CODE_END(\asmsym)
+.endm
+
+/*
+ * Include the defines which emit the idt entries which are shared
+ * shared between 32 and 64 bit and emit the __irqentry_text_* markers
+ * so the stacktrace boundary checks work.
+ */
+ __ALIGN
+ .globl __irqentry_text_start
+__irqentry_text_start:
+
+#include <asm/idtentry.h>
+
+ __ALIGN
+ .globl __irqentry_text_end
+__irqentry_text_end:
+ ANNOTATE_NOENDBR
+
+SYM_CODE_START_LOCAL(common_interrupt_return)
+SYM_INNER_LABEL(swapgs_restore_regs_and_return_to_usermode, SYM_L_GLOBAL)
+ IBRS_EXIT
+#ifdef CONFIG_DEBUG_ENTRY
+ /* Assert that pt_regs indicates user mode. */
+ testb $3, CS(%rsp)
+ jnz 1f
+ ud2
+1:
+#endif
+#ifdef CONFIG_XEN_PV
+ ALTERNATIVE "", "jmp xenpv_restore_regs_and_return_to_usermode", X86_FEATURE_XENPV
+#endif
+
+ POP_REGS pop_rdi=0
+
+ /*
+ * The stack is now user RDI, orig_ax, RIP, CS, EFLAGS, RSP, SS.
+ * Save old stack pointer and switch to trampoline stack.
+ */
+ movq %rsp, %rdi
+ movq PER_CPU_VAR(cpu_tss_rw + TSS_sp0), %rsp
+ UNWIND_HINT_END_OF_STACK
+
+ /* Copy the IRET frame to the trampoline stack. */
+ pushq 6*8(%rdi) /* SS */
+ pushq 5*8(%rdi) /* RSP */
+ pushq 4*8(%rdi) /* EFLAGS */
+ pushq 3*8(%rdi) /* CS */
+ pushq 2*8(%rdi) /* RIP */
+
+ /* Push user RDI on the trampoline stack. */
+ pushq (%rdi)
+
+ /*
+ * We are on the trampoline stack. All regs except RDI are live.
+ * We can do future final exit work right here.
+ */
+ STACKLEAK_ERASE_NOCLOBBER
+
+ SWITCH_TO_USER_CR3_STACK scratch_reg=%rdi
+
+ /* Restore RDI. */
+ popq %rdi
+ swapgs
+ jmp .Lnative_iret
+
+
+SYM_INNER_LABEL(restore_regs_and_return_to_kernel, SYM_L_GLOBAL)
+#ifdef CONFIG_DEBUG_ENTRY
+ /* Assert that pt_regs indicates kernel mode. */
+ testb $3, CS(%rsp)
+ jz 1f
+ ud2
+1:
+#endif
+ POP_REGS
+ addq $8, %rsp /* skip regs->orig_ax */
+ /*
+ * ARCH_HAS_MEMBARRIER_SYNC_CORE rely on IRET core serialization
+ * when returning from IPI handler.
+ */
+#ifdef CONFIG_XEN_PV
+SYM_INNER_LABEL(early_xen_iret_patch, SYM_L_GLOBAL)
+ ANNOTATE_NOENDBR
+ .byte 0xe9
+ .long .Lnative_iret - (. + 4)
+#endif
+
+.Lnative_iret:
+ UNWIND_HINT_IRET_REGS
+ /*
+ * Are we returning to a stack segment from the LDT? Note: in
+ * 64-bit mode SS:RSP on the exception stack is always valid.
+ */
+#ifdef CONFIG_X86_ESPFIX64
+ testb $4, (SS-RIP)(%rsp)
+ jnz native_irq_return_ldt
+#endif
+
+SYM_INNER_LABEL(native_irq_return_iret, SYM_L_GLOBAL)
+ ANNOTATE_NOENDBR // exc_double_fault
+ /*
+ * This may fault. Non-paranoid faults on return to userspace are
+ * handled by fixup_bad_iret. These include #SS, #GP, and #NP.
+ * Double-faults due to espfix64 are handled in exc_double_fault.
+ * Other faults here are fatal.
+ */
+ iretq
+
+#ifdef CONFIG_X86_ESPFIX64
+native_irq_return_ldt:
+ /*
+ * We are running with user GSBASE. All GPRs contain their user
+ * values. We have a percpu ESPFIX stack that is eight slots
+ * long (see ESPFIX_STACK_SIZE). espfix_waddr points to the bottom
+ * of the ESPFIX stack.
+ *
+ * We clobber RAX and RDI in this code. We stash RDI on the
+ * normal stack and RAX on the ESPFIX stack.
+ *
+ * The ESPFIX stack layout we set up looks like this:
+ *
+ * --- top of ESPFIX stack ---
+ * SS
+ * RSP
+ * RFLAGS
+ * CS
+ * RIP <-- RSP points here when we're done
+ * RAX <-- espfix_waddr points here
+ * --- bottom of ESPFIX stack ---
+ */
+
+ pushq %rdi /* Stash user RDI */
+ swapgs /* to kernel GS */
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%rdi /* to kernel CR3 */
+
+ movq PER_CPU_VAR(espfix_waddr), %rdi
+ movq %rax, (0*8)(%rdi) /* user RAX */
+ movq (1*8)(%rsp), %rax /* user RIP */
+ movq %rax, (1*8)(%rdi)
+ movq (2*8)(%rsp), %rax /* user CS */
+ movq %rax, (2*8)(%rdi)
+ movq (3*8)(%rsp), %rax /* user RFLAGS */
+ movq %rax, (3*8)(%rdi)
+ movq (5*8)(%rsp), %rax /* user SS */
+ movq %rax, (5*8)(%rdi)
+ movq (4*8)(%rsp), %rax /* user RSP */
+ movq %rax, (4*8)(%rdi)
+ /* Now RAX == RSP. */
+
+ andl $0xffff0000, %eax /* RAX = (RSP & 0xffff0000) */
+
+ /*
+ * espfix_stack[31:16] == 0. The page tables are set up such that
+ * (espfix_stack | (X & 0xffff0000)) points to a read-only alias of
+ * espfix_waddr for any X. That is, there are 65536 RO aliases of
+ * the same page. Set up RSP so that RSP[31:16] contains the
+ * respective 16 bits of the /userspace/ RSP and RSP nonetheless
+ * still points to an RO alias of the ESPFIX stack.
+ */
+ orq PER_CPU_VAR(espfix_stack), %rax
+
+ SWITCH_TO_USER_CR3_STACK scratch_reg=%rdi
+ swapgs /* to user GS */
+ popq %rdi /* Restore user RDI */
+
+ movq %rax, %rsp
+ UNWIND_HINT_IRET_REGS offset=8
+
+ /*
+ * At this point, we cannot write to the stack any more, but we can
+ * still read.
+ */
+ popq %rax /* Restore user RAX */
+
+ /*
+ * RSP now points to an ordinary IRET frame, except that the page
+ * is read-only and RSP[31:16] are preloaded with the userspace
+ * values. We can now IRET back to userspace.
+ */
+ jmp native_irq_return_iret
+#endif
+SYM_CODE_END(common_interrupt_return)
+_ASM_NOKPROBE(common_interrupt_return)
+
+/*
+ * Reload gs selector with exception handling
+ * di: new selector
+ *
+ * Is in entry.text as it shouldn't be instrumented.
+ */
+SYM_FUNC_START(asm_load_gs_index)
+ FRAME_BEGIN
+ swapgs
+.Lgs_change:
+ ANNOTATE_NOENDBR // error_entry
+ movl %edi, %gs
+2: ALTERNATIVE "", "mfence", X86_BUG_SWAPGS_FENCE
+ swapgs
+ FRAME_END
+ RET
+
+ /* running with kernelgs */
+.Lbad_gs:
+ swapgs /* switch back to user gs */
+.macro ZAP_GS
+ /* This can't be a string because the preprocessor needs to see it. */
+ movl $__USER_DS, %eax
+ movl %eax, %gs
+.endm
+ ALTERNATIVE "", "ZAP_GS", X86_BUG_NULL_SEG
+ xorl %eax, %eax
+ movl %eax, %gs
+ jmp 2b
+
+ _ASM_EXTABLE(.Lgs_change, .Lbad_gs)
+
+SYM_FUNC_END(asm_load_gs_index)
+EXPORT_SYMBOL(asm_load_gs_index)
+
+#ifdef CONFIG_XEN_PV
+/*
+ * A note on the "critical region" in our callback handler.
+ * We want to avoid stacking callback handlers due to events occurring
+ * during handling of the last event. To do this, we keep events disabled
+ * until we've done all processing. HOWEVER, we must enable events before
+ * popping the stack frame (can't be done atomically) and so it would still
+ * be possible to get enough handler activations to overflow the stack.
+ * Although unlikely, bugs of that kind are hard to track down, so we'd
+ * like to avoid the possibility.
+ * So, on entry to the handler we detect whether we interrupted an
+ * existing activation in its critical region -- if so, we pop the current
+ * activation and restart the handler using the previous one.
+ *
+ * C calling convention: exc_xen_hypervisor_callback(struct *pt_regs)
+ */
+ __FUNC_ALIGN
+SYM_CODE_START_LOCAL_NOALIGN(exc_xen_hypervisor_callback)
+
+/*
+ * Since we don't modify %rdi, evtchn_do_upall(struct *pt_regs) will
+ * see the correct pointer to the pt_regs
+ */
+ UNWIND_HINT_FUNC
+ movq %rdi, %rsp /* we don't return, adjust the stack frame */
+ UNWIND_HINT_REGS
+
+ call xen_pv_evtchn_do_upcall
+
+ jmp error_return
+SYM_CODE_END(exc_xen_hypervisor_callback)
+
+/*
+ * Hypervisor uses this for application faults while it executes.
+ * We get here for two reasons:
+ * 1. Fault while reloading DS, ES, FS or GS
+ * 2. Fault while executing IRET
+ * Category 1 we do not need to fix up as Xen has already reloaded all segment
+ * registers that could be reloaded and zeroed the others.
+ * Category 2 we fix up by killing the current process. We cannot use the
+ * normal Linux return path in this case because if we use the IRET hypercall
+ * to pop the stack frame we end up in an infinite loop of failsafe callbacks.
+ * We distinguish between categories by comparing each saved segment register
+ * with its current contents: any discrepancy means we in category 1.
+ */
+ __FUNC_ALIGN
+SYM_CODE_START_NOALIGN(xen_failsafe_callback)
+ UNWIND_HINT_UNDEFINED
+ ENDBR
+ movl %ds, %ecx
+ cmpw %cx, 0x10(%rsp)
+ jne 1f
+ movl %es, %ecx
+ cmpw %cx, 0x18(%rsp)
+ jne 1f
+ movl %fs, %ecx
+ cmpw %cx, 0x20(%rsp)
+ jne 1f
+ movl %gs, %ecx
+ cmpw %cx, 0x28(%rsp)
+ jne 1f
+ /* All segments match their saved values => Category 2 (Bad IRET). */
+ movq (%rsp), %rcx
+ movq 8(%rsp), %r11
+ addq $0x30, %rsp
+ pushq $0 /* RIP */
+ UNWIND_HINT_IRET_REGS offset=8
+ jmp asm_exc_general_protection
+1: /* Segment mismatch => Category 1 (Bad segment). Retry the IRET. */
+ movq (%rsp), %rcx
+ movq 8(%rsp), %r11
+ addq $0x30, %rsp
+ UNWIND_HINT_IRET_REGS
+ pushq $-1 /* orig_ax = -1 => not a system call */
+ PUSH_AND_CLEAR_REGS
+ ENCODE_FRAME_POINTER
+ jmp error_return
+SYM_CODE_END(xen_failsafe_callback)
+#endif /* CONFIG_XEN_PV */
+
+/*
+ * Save all registers in pt_regs. Return GSBASE related information
+ * in EBX depending on the availability of the FSGSBASE instructions:
+ *
+ * FSGSBASE R/EBX
+ * N 0 -> SWAPGS on exit
+ * 1 -> no SWAPGS on exit
+ *
+ * Y GSBASE value at entry, must be restored in paranoid_exit
+ *
+ * R14 - old CR3
+ * R15 - old SPEC_CTRL
+ */
+SYM_CODE_START(paranoid_entry)
+ ANNOTATE_NOENDBR
+ UNWIND_HINT_FUNC
+ PUSH_AND_CLEAR_REGS save_ret=1
+ ENCODE_FRAME_POINTER 8
+
+ /*
+ * Always stash CR3 in %r14. This value will be restored,
+ * verbatim, at exit. Needed if paranoid_entry interrupted
+ * another entry that already switched to the user CR3 value
+ * but has not yet returned to userspace.
+ *
+ * This is also why CS (stashed in the "iret frame" by the
+ * hardware at entry) can not be used: this may be a return
+ * to kernel code, but with a user CR3 value.
+ *
+ * Switching CR3 does not depend on kernel GSBASE so it can
+ * be done before switching to the kernel GSBASE. This is
+ * required for FSGSBASE because the kernel GSBASE has to
+ * be retrieved from a kernel internal table.
+ */
+ SAVE_AND_SWITCH_TO_KERNEL_CR3 scratch_reg=%rax save_reg=%r14
+
+ /*
+ * Handling GSBASE depends on the availability of FSGSBASE.
+ *
+ * Without FSGSBASE the kernel enforces that negative GSBASE
+ * values indicate kernel GSBASE. With FSGSBASE no assumptions
+ * can be made about the GSBASE value when entering from user
+ * space.
+ */
+ ALTERNATIVE "jmp .Lparanoid_entry_checkgs", "", X86_FEATURE_FSGSBASE
+
+ /*
+ * Read the current GSBASE and store it in %rbx unconditionally,
+ * retrieve and set the current CPUs kernel GSBASE. The stored value
+ * has to be restored in paranoid_exit unconditionally.
+ *
+ * The unconditional write to GS base below ensures that no subsequent
+ * loads based on a mispredicted GS base can happen, therefore no LFENCE
+ * is needed here.
+ */
+ SAVE_AND_SET_GSBASE scratch_reg=%rax save_reg=%rbx
+ jmp .Lparanoid_gsbase_done
+
+.Lparanoid_entry_checkgs:
+ /* EBX = 1 -> kernel GSBASE active, no restore required */
+ movl $1, %ebx
+
+ /*
+ * The kernel-enforced convention is a negative GSBASE indicates
+ * a kernel value. No SWAPGS needed on entry and exit.
+ */
+ movl $MSR_GS_BASE, %ecx
+ rdmsr
+ testl %edx, %edx
+ js .Lparanoid_kernel_gsbase
+
+ /* EBX = 0 -> SWAPGS required on exit */
+ xorl %ebx, %ebx
+ swapgs
+.Lparanoid_kernel_gsbase:
+ FENCE_SWAPGS_KERNEL_ENTRY
+.Lparanoid_gsbase_done:
+
+ /*
+ * Once we have CR3 and %GS setup save and set SPEC_CTRL. Just like
+ * CR3 above, keep the old value in a callee saved register.
+ */
+ IBRS_ENTER save_reg=%r15
+ UNTRAIN_RET_FROM_CALL
+
+ RET
+SYM_CODE_END(paranoid_entry)
+
+/*
+ * "Paranoid" exit path from exception stack. This is invoked
+ * only on return from non-NMI IST interrupts that came
+ * from kernel space.
+ *
+ * We may be returning to very strange contexts (e.g. very early
+ * in syscall entry), so checking for preemption here would
+ * be complicated. Fortunately, there's no good reason to try
+ * to handle preemption here.
+ *
+ * R/EBX contains the GSBASE related information depending on the
+ * availability of the FSGSBASE instructions:
+ *
+ * FSGSBASE R/EBX
+ * N 0 -> SWAPGS on exit
+ * 1 -> no SWAPGS on exit
+ *
+ * Y User space GSBASE, must be restored unconditionally
+ *
+ * R14 - old CR3
+ * R15 - old SPEC_CTRL
+ */
+SYM_CODE_START_LOCAL(paranoid_exit)
+ UNWIND_HINT_REGS
+
+ /*
+ * Must restore IBRS state before both CR3 and %GS since we need access
+ * to the per-CPU x86_spec_ctrl_shadow variable.
+ */
+ IBRS_EXIT save_reg=%r15
+
+ /*
+ * The order of operations is important. RESTORE_CR3 requires
+ * kernel GSBASE.
+ *
+ * NB to anyone to try to optimize this code: this code does
+ * not execute at all for exceptions from user mode. Those
+ * exceptions go through error_return instead.
+ */
+ RESTORE_CR3 scratch_reg=%rax save_reg=%r14
+
+ /* Handle the three GSBASE cases */
+ ALTERNATIVE "jmp .Lparanoid_exit_checkgs", "", X86_FEATURE_FSGSBASE
+
+ /* With FSGSBASE enabled, unconditionally restore GSBASE */
+ wrgsbase %rbx
+ jmp restore_regs_and_return_to_kernel
+
+.Lparanoid_exit_checkgs:
+ /* On non-FSGSBASE systems, conditionally do SWAPGS */
+ testl %ebx, %ebx
+ jnz restore_regs_and_return_to_kernel
+
+ /* We are returning to a context with user GSBASE */
+ swapgs
+ jmp restore_regs_and_return_to_kernel
+SYM_CODE_END(paranoid_exit)
+
+/*
+ * Switch GS and CR3 if needed.
+ */
+SYM_CODE_START(error_entry)
+ ANNOTATE_NOENDBR
+ UNWIND_HINT_FUNC
+
+ PUSH_AND_CLEAR_REGS save_ret=1
+ ENCODE_FRAME_POINTER 8
+
+ testb $3, CS+8(%rsp)
+ jz .Lerror_kernelspace
+
+ /*
+ * We entered from user mode or we're pretending to have entered
+ * from user mode due to an IRET fault.
+ */
+ swapgs
+ FENCE_SWAPGS_USER_ENTRY
+ /* We have user CR3. Change to kernel CR3. */
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%rax
+ IBRS_ENTER
+ UNTRAIN_RET_FROM_CALL
+
+ leaq 8(%rsp), %rdi /* arg0 = pt_regs pointer */
+ /* Put us onto the real thread stack. */
+ jmp sync_regs
+
+ /*
+ * There are two places in the kernel that can potentially fault with
+ * usergs. Handle them here. B stepping K8s sometimes report a
+ * truncated RIP for IRET exceptions returning to compat mode. Check
+ * for these here too.
+ */
+.Lerror_kernelspace:
+ leaq native_irq_return_iret(%rip), %rcx
+ cmpq %rcx, RIP+8(%rsp)
+ je .Lerror_bad_iret
+ movl %ecx, %eax /* zero extend */
+ cmpq %rax, RIP+8(%rsp)
+ je .Lbstep_iret
+ cmpq $.Lgs_change, RIP+8(%rsp)
+ jne .Lerror_entry_done_lfence
+
+ /*
+ * hack: .Lgs_change can fail with user gsbase. If this happens, fix up
+ * gsbase and proceed. We'll fix up the exception and land in
+ * .Lgs_change's error handler with kernel gsbase.
+ */
+ swapgs
+
+ /*
+ * Issue an LFENCE to prevent GS speculation, regardless of whether it is a
+ * kernel or user gsbase.
+ */
+.Lerror_entry_done_lfence:
+ FENCE_SWAPGS_KERNEL_ENTRY
+ CALL_DEPTH_ACCOUNT
+ leaq 8(%rsp), %rax /* return pt_regs pointer */
+ VALIDATE_UNRET_END
+ RET
+
+.Lbstep_iret:
+ /* Fix truncated RIP */
+ movq %rcx, RIP+8(%rsp)
+ /* fall through */
+
+.Lerror_bad_iret:
+ /*
+ * We came from an IRET to user mode, so we have user
+ * gsbase and CR3. Switch to kernel gsbase and CR3:
+ */
+ swapgs
+ FENCE_SWAPGS_USER_ENTRY
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%rax
+ IBRS_ENTER
+ UNTRAIN_RET_FROM_CALL
+
+ /*
+ * Pretend that the exception came from user mode: set up pt_regs
+ * as if we faulted immediately after IRET.
+ */
+ leaq 8(%rsp), %rdi /* arg0 = pt_regs pointer */
+ call fixup_bad_iret
+ mov %rax, %rdi
+ jmp sync_regs
+SYM_CODE_END(error_entry)
+
+SYM_CODE_START_LOCAL(error_return)
+ UNWIND_HINT_REGS
+ DEBUG_ENTRY_ASSERT_IRQS_OFF
+ testb $3, CS(%rsp)
+ jz restore_regs_and_return_to_kernel
+ jmp swapgs_restore_regs_and_return_to_usermode
+SYM_CODE_END(error_return)
+
+/*
+ * Runs on exception stack. Xen PV does not go through this path at all,
+ * so we can use real assembly here.
+ *
+ * Registers:
+ * %r14: Used to save/restore the CR3 of the interrupted context
+ * when PAGE_TABLE_ISOLATION is in use. Do not clobber.
+ */
+SYM_CODE_START(asm_exc_nmi)
+ UNWIND_HINT_IRET_ENTRY
+ ENDBR
+
+ /*
+ * We allow breakpoints in NMIs. If a breakpoint occurs, then
+ * the iretq it performs will take us out of NMI context.
+ * This means that we can have nested NMIs where the next
+ * NMI is using the top of the stack of the previous NMI. We
+ * can't let it execute because the nested NMI will corrupt the
+ * stack of the previous NMI. NMI handlers are not re-entrant
+ * anyway.
+ *
+ * To handle this case we do the following:
+ * Check the a special location on the stack that contains
+ * a variable that is set when NMIs are executing.
+ * The interrupted task's stack is also checked to see if it
+ * is an NMI stack.
+ * If the variable is not set and the stack is not the NMI
+ * stack then:
+ * o Set the special variable on the stack
+ * o Copy the interrupt frame into an "outermost" location on the
+ * stack
+ * o Copy the interrupt frame into an "iret" location on the stack
+ * o Continue processing the NMI
+ * If the variable is set or the previous stack is the NMI stack:
+ * o Modify the "iret" location to jump to the repeat_nmi
+ * o return back to the first NMI
+ *
+ * Now on exit of the first NMI, we first clear the stack variable
+ * The NMI stack will tell any nested NMIs at that point that it is
+ * nested. Then we pop the stack normally with iret, and if there was
+ * a nested NMI that updated the copy interrupt stack frame, a
+ * jump will be made to the repeat_nmi code that will handle the second
+ * NMI.
+ *
+ * However, espfix prevents us from directly returning to userspace
+ * with a single IRET instruction. Similarly, IRET to user mode
+ * can fault. We therefore handle NMIs from user space like
+ * other IST entries.
+ */
+
+ ASM_CLAC
+ cld
+
+ /* Use %rdx as our temp variable throughout */
+ pushq %rdx
+
+ testb $3, CS-RIP+8(%rsp)
+ jz .Lnmi_from_kernel
+
+ /*
+ * NMI from user mode. We need to run on the thread stack, but we
+ * can't go through the normal entry paths: NMIs are masked, and
+ * we don't want to enable interrupts, because then we'll end
+ * up in an awkward situation in which IRQs are on but NMIs
+ * are off.
+ *
+ * We also must not push anything to the stack before switching
+ * stacks lest we corrupt the "NMI executing" variable.
+ */
+
+ swapgs
+ FENCE_SWAPGS_USER_ENTRY
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%rdx
+ movq %rsp, %rdx
+ movq PER_CPU_VAR(pcpu_hot + X86_top_of_stack), %rsp
+ UNWIND_HINT_IRET_REGS base=%rdx offset=8
+ pushq 5*8(%rdx) /* pt_regs->ss */
+ pushq 4*8(%rdx) /* pt_regs->rsp */
+ pushq 3*8(%rdx) /* pt_regs->flags */
+ pushq 2*8(%rdx) /* pt_regs->cs */
+ pushq 1*8(%rdx) /* pt_regs->rip */
+ UNWIND_HINT_IRET_REGS
+ pushq $-1 /* pt_regs->orig_ax */
+ PUSH_AND_CLEAR_REGS rdx=(%rdx)
+ ENCODE_FRAME_POINTER
+
+ IBRS_ENTER
+ UNTRAIN_RET
+
+ /*
+ * At this point we no longer need to worry about stack damage
+ * due to nesting -- we're on the normal thread stack and we're
+ * done with the NMI stack.
+ */
+
+ movq %rsp, %rdi
+ movq $-1, %rsi
+ call exc_nmi
+
+ /*
+ * Return back to user mode. We must *not* do the normal exit
+ * work, because we don't want to enable interrupts.
+ */
+ jmp swapgs_restore_regs_and_return_to_usermode
+
+.Lnmi_from_kernel:
+ /*
+ * Here's what our stack frame will look like:
+ * +---------------------------------------------------------+
+ * | original SS |
+ * | original Return RSP |
+ * | original RFLAGS |
+ * | original CS |
+ * | original RIP |
+ * +---------------------------------------------------------+
+ * | temp storage for rdx |
+ * +---------------------------------------------------------+
+ * | "NMI executing" variable |
+ * +---------------------------------------------------------+
+ * | iret SS } Copied from "outermost" frame |
+ * | iret Return RSP } on each loop iteration; overwritten |
+ * | iret RFLAGS } by a nested NMI to force another |
+ * | iret CS } iteration if needed. |
+ * | iret RIP } |
+ * +---------------------------------------------------------+
+ * | outermost SS } initialized in first_nmi; |
+ * | outermost Return RSP } will not be changed before |
+ * | outermost RFLAGS } NMI processing is done. |
+ * | outermost CS } Copied to "iret" frame on each |
+ * | outermost RIP } iteration. |
+ * +---------------------------------------------------------+
+ * | pt_regs |
+ * +---------------------------------------------------------+
+ *
+ * The "original" frame is used by hardware. Before re-enabling
+ * NMIs, we need to be done with it, and we need to leave enough
+ * space for the asm code here.
+ *
+ * We return by executing IRET while RSP points to the "iret" frame.
+ * That will either return for real or it will loop back into NMI
+ * processing.
+ *
+ * The "outermost" frame is copied to the "iret" frame on each
+ * iteration of the loop, so each iteration starts with the "iret"
+ * frame pointing to the final return target.
+ */
+
+ /*
+ * Determine whether we're a nested NMI.
+ *
+ * If we interrupted kernel code between repeat_nmi and
+ * end_repeat_nmi, then we are a nested NMI. We must not
+ * modify the "iret" frame because it's being written by
+ * the outer NMI. That's okay; the outer NMI handler is
+ * about to about to call exc_nmi() anyway, so we can just
+ * resume the outer NMI.
+ */
+
+ movq $repeat_nmi, %rdx
+ cmpq 8(%rsp), %rdx
+ ja 1f
+ movq $end_repeat_nmi, %rdx
+ cmpq 8(%rsp), %rdx
+ ja nested_nmi_out
+1:
+
+ /*
+ * Now check "NMI executing". If it's set, then we're nested.
+ * This will not detect if we interrupted an outer NMI just
+ * before IRET.
+ */
+ cmpl $1, -8(%rsp)
+ je nested_nmi
+
+ /*
+ * Now test if the previous stack was an NMI stack. This covers
+ * the case where we interrupt an outer NMI after it clears
+ * "NMI executing" but before IRET. We need to be careful, though:
+ * there is one case in which RSP could point to the NMI stack
+ * despite there being no NMI active: naughty userspace controls
+ * RSP at the very beginning of the SYSCALL targets. We can
+ * pull a fast one on naughty userspace, though: we program
+ * SYSCALL to mask DF, so userspace cannot cause DF to be set
+ * if it controls the kernel's RSP. We set DF before we clear
+ * "NMI executing".
+ */
+ lea 6*8(%rsp), %rdx
+ /* Compare the NMI stack (rdx) with the stack we came from (4*8(%rsp)) */
+ cmpq %rdx, 4*8(%rsp)
+ /* If the stack pointer is above the NMI stack, this is a normal NMI */
+ ja first_nmi
+
+ subq $EXCEPTION_STKSZ, %rdx
+ cmpq %rdx, 4*8(%rsp)
+ /* If it is below the NMI stack, it is a normal NMI */
+ jb first_nmi
+
+ /* Ah, it is within the NMI stack. */
+
+ testb $(X86_EFLAGS_DF >> 8), (3*8 + 1)(%rsp)
+ jz first_nmi /* RSP was user controlled. */
+
+ /* This is a nested NMI. */
+
+nested_nmi:
+ /*
+ * Modify the "iret" frame to point to repeat_nmi, forcing another
+ * iteration of NMI handling.
+ */
+ subq $8, %rsp
+ leaq -10*8(%rsp), %rdx
+ pushq $__KERNEL_DS
+ pushq %rdx
+ pushfq
+ pushq $__KERNEL_CS
+ pushq $repeat_nmi
+
+ /* Put stack back */
+ addq $(6*8), %rsp
+
+nested_nmi_out:
+ popq %rdx
+
+ /* We are returning to kernel mode, so this cannot result in a fault. */
+ iretq
+
+first_nmi:
+ /* Restore rdx. */
+ movq (%rsp), %rdx
+
+ /* Make room for "NMI executing". */
+ pushq $0
+
+ /* Leave room for the "iret" frame */
+ subq $(5*8), %rsp
+
+ /* Copy the "original" frame to the "outermost" frame */
+ .rept 5
+ pushq 11*8(%rsp)
+ .endr
+ UNWIND_HINT_IRET_REGS
+
+ /* Everything up to here is safe from nested NMIs */
+
+#ifdef CONFIG_DEBUG_ENTRY
+ /*
+ * For ease of testing, unmask NMIs right away. Disabled by
+ * default because IRET is very expensive.
+ */
+ pushq $0 /* SS */
+ pushq %rsp /* RSP (minus 8 because of the previous push) */
+ addq $8, (%rsp) /* Fix up RSP */
+ pushfq /* RFLAGS */
+ pushq $__KERNEL_CS /* CS */
+ pushq $1f /* RIP */
+ iretq /* continues at repeat_nmi below */
+ UNWIND_HINT_IRET_REGS
+1:
+#endif
+
+repeat_nmi:
+ ANNOTATE_NOENDBR // this code
+ /*
+ * If there was a nested NMI, the first NMI's iret will return
+ * here. But NMIs are still enabled and we can take another
+ * nested NMI. The nested NMI checks the interrupted RIP to see
+ * if it is between repeat_nmi and end_repeat_nmi, and if so
+ * it will just return, as we are about to repeat an NMI anyway.
+ * This makes it safe to copy to the stack frame that a nested
+ * NMI will update.
+ *
+ * RSP is pointing to "outermost RIP". gsbase is unknown, but, if
+ * we're repeating an NMI, gsbase has the same value that it had on
+ * the first iteration. paranoid_entry will load the kernel
+ * gsbase if needed before we call exc_nmi(). "NMI executing"
+ * is zero.
+ */
+ movq $1, 10*8(%rsp) /* Set "NMI executing". */
+
+ /*
+ * Copy the "outermost" frame to the "iret" frame. NMIs that nest
+ * here must not modify the "iret" frame while we're writing to
+ * it or it will end up containing garbage.
+ */
+ addq $(10*8), %rsp
+ .rept 5
+ pushq -6*8(%rsp)
+ .endr
+ subq $(5*8), %rsp
+end_repeat_nmi:
+ ANNOTATE_NOENDBR // this code
+
+ /*
+ * Everything below this point can be preempted by a nested NMI.
+ * If this happens, then the inner NMI will change the "iret"
+ * frame to point back to repeat_nmi.
+ */
+ pushq $-1 /* ORIG_RAX: no syscall to restart */
+
+ /*
+ * Use paranoid_entry to handle SWAPGS, but no need to use paranoid_exit
+ * as we should not be calling schedule in NMI context.
+ * Even with normal interrupts enabled. An NMI should not be
+ * setting NEED_RESCHED or anything that normal interrupts and
+ * exceptions might do.
+ */
+ call paranoid_entry
+ UNWIND_HINT_REGS
+
+ movq %rsp, %rdi
+ movq $-1, %rsi
+ call exc_nmi
+
+ /* Always restore stashed SPEC_CTRL value (see paranoid_entry) */
+ IBRS_EXIT save_reg=%r15
+
+ /* Always restore stashed CR3 value (see paranoid_entry) */
+ RESTORE_CR3 scratch_reg=%r15 save_reg=%r14
+
+ /*
+ * The above invocation of paranoid_entry stored the GSBASE
+ * related information in R/EBX depending on the availability
+ * of FSGSBASE.
+ *
+ * If FSGSBASE is enabled, restore the saved GSBASE value
+ * unconditionally, otherwise take the conditional SWAPGS path.
+ */
+ ALTERNATIVE "jmp nmi_no_fsgsbase", "", X86_FEATURE_FSGSBASE
+
+ wrgsbase %rbx
+ jmp nmi_restore
+
+nmi_no_fsgsbase:
+ /* EBX == 0 -> invoke SWAPGS */
+ testl %ebx, %ebx
+ jnz nmi_restore
+
+nmi_swapgs:
+ swapgs
+
+nmi_restore:
+ POP_REGS
+
+ /*
+ * Skip orig_ax and the "outermost" frame to point RSP at the "iret"
+ * at the "iret" frame.
+ */
+ addq $6*8, %rsp
+
+ /*
+ * Clear "NMI executing". Set DF first so that we can easily
+ * distinguish the remaining code between here and IRET from
+ * the SYSCALL entry and exit paths.
+ *
+ * We arguably should just inspect RIP instead, but I (Andy) wrote
+ * this code when I had the misapprehension that Xen PV supported
+ * NMIs, and Xen PV would break that approach.
+ */
+ std
+ movq $0, 5*8(%rsp) /* clear "NMI executing" */
+
+ /*
+ * iretq reads the "iret" frame and exits the NMI stack in a
+ * single instruction. We are returning to kernel mode, so this
+ * cannot result in a fault. Similarly, we don't need to worry
+ * about espfix64 on the way back to kernel mode.
+ */
+ iretq
+SYM_CODE_END(asm_exc_nmi)
+
+#ifndef CONFIG_IA32_EMULATION
+/*
+ * This handles SYSCALL from 32-bit code. There is no way to program
+ * MSRs to fully disable 32-bit SYSCALL.
+ */
+SYM_CODE_START(ignore_sysret)
+ UNWIND_HINT_END_OF_STACK
+ ENDBR
+ mov $-ENOSYS, %eax
+ sysretl
+SYM_CODE_END(ignore_sysret)
+#endif
+
+.pushsection .text, "ax"
+ __FUNC_ALIGN
+SYM_CODE_START_NOALIGN(rewind_stack_and_make_dead)
+ UNWIND_HINT_FUNC
+ /* Prevent any naive code from trying to unwind to our caller. */
+ xorl %ebp, %ebp
+
+ movq PER_CPU_VAR(pcpu_hot + X86_top_of_stack), %rax
+ leaq -PTREGS_SIZE(%rax), %rsp
+ UNWIND_HINT_REGS
+
+ call make_task_dead
+SYM_CODE_END(rewind_stack_and_make_dead)
+.popsection
diff --git a/arch/x86/entry/entry_64_compat.S b/arch/x86/entry/entry_64_compat.S
new file mode 100644
index 000000000000..70150298f8bd
--- /dev/null
+++ b/arch/x86/entry/entry_64_compat.S
@@ -0,0 +1,355 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Compatibility mode system call entry point for x86-64.
+ *
+ * Copyright 2000-2002 Andi Kleen, SuSE Labs.
+ */
+#include <asm/asm-offsets.h>
+#include <asm/current.h>
+#include <asm/errno.h>
+#include <asm/ia32_unistd.h>
+#include <asm/thread_info.h>
+#include <asm/segment.h>
+#include <asm/irqflags.h>
+#include <asm/asm.h>
+#include <asm/smap.h>
+#include <asm/nospec-branch.h>
+#include <linux/linkage.h>
+#include <linux/err.h>
+
+#include "calling.h"
+
+ .section .entry.text, "ax"
+
+/*
+ * 32-bit SYSENTER entry.
+ *
+ * 32-bit system calls through the vDSO's __kernel_vsyscall enter here
+ * on 64-bit kernels running on Intel CPUs.
+ *
+ * The SYSENTER instruction, in principle, should *only* occur in the
+ * vDSO. In practice, a small number of Android devices were shipped
+ * with a copy of Bionic that inlined a SYSENTER instruction. This
+ * never happened in any of Google's Bionic versions -- it only happened
+ * in a narrow range of Intel-provided versions.
+ *
+ * SYSENTER loads SS, RSP, CS, and RIP from previously programmed MSRs.
+ * IF and VM in RFLAGS are cleared (IOW: interrupts are off).
+ * SYSENTER does not save anything on the stack,
+ * and does not save old RIP (!!!), RSP, or RFLAGS.
+ *
+ * Arguments:
+ * eax system call number
+ * ebx arg1
+ * ecx arg2
+ * edx arg3
+ * esi arg4
+ * edi arg5
+ * ebp user stack
+ * 0(%ebp) arg6
+ */
+SYM_CODE_START(entry_SYSENTER_compat)
+ UNWIND_HINT_ENTRY
+ ENDBR
+ /* Interrupts are off on entry. */
+ swapgs
+
+ pushq %rax
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%rax
+ popq %rax
+
+ movq PER_CPU_VAR(pcpu_hot + X86_top_of_stack), %rsp
+
+ /* Construct struct pt_regs on stack */
+ pushq $__USER_DS /* pt_regs->ss */
+ pushq $0 /* pt_regs->sp = 0 (placeholder) */
+
+ /*
+ * Push flags. This is nasty. First, interrupts are currently
+ * off, but we need pt_regs->flags to have IF set. Second, if TS
+ * was set in usermode, it's still set, and we're singlestepping
+ * through this code. do_SYSENTER_32() will fix up IF.
+ */
+ pushfq /* pt_regs->flags (except IF = 0) */
+ pushq $__USER32_CS /* pt_regs->cs */
+ pushq $0 /* pt_regs->ip = 0 (placeholder) */
+SYM_INNER_LABEL(entry_SYSENTER_compat_after_hwframe, SYM_L_GLOBAL)
+
+ /*
+ * User tracing code (ptrace or signal handlers) might assume that
+ * the saved RAX contains a 32-bit number when we're invoking a 32-bit
+ * syscall. Just in case the high bits are nonzero, zero-extend
+ * the syscall number. (This could almost certainly be deleted
+ * with no ill effects.)
+ */
+ movl %eax, %eax
+
+ pushq %rax /* pt_regs->orig_ax */
+ PUSH_AND_CLEAR_REGS rax=$-ENOSYS
+ UNWIND_HINT_REGS
+
+ cld
+
+ IBRS_ENTER
+ UNTRAIN_RET
+
+ /*
+ * SYSENTER doesn't filter flags, so we need to clear NT and AC
+ * ourselves. To save a few cycles, we can check whether
+ * either was set instead of doing an unconditional popfq.
+ * This needs to happen before enabling interrupts so that
+ * we don't get preempted with NT set.
+ *
+ * If TF is set, we will single-step all the way to here -- do_debug
+ * will ignore all the traps. (Yes, this is slow, but so is
+ * single-stepping in general. This allows us to avoid having
+ * a more complicated code to handle the case where a user program
+ * forces us to single-step through the SYSENTER entry code.)
+ *
+ * NB.: .Lsysenter_fix_flags is a label with the code under it moved
+ * out-of-line as an optimization: NT is unlikely to be set in the
+ * majority of the cases and instead of polluting the I$ unnecessarily,
+ * we're keeping that code behind a branch which will predict as
+ * not-taken and therefore its instructions won't be fetched.
+ */
+ testl $X86_EFLAGS_NT|X86_EFLAGS_AC|X86_EFLAGS_TF, EFLAGS(%rsp)
+ jnz .Lsysenter_fix_flags
+.Lsysenter_flags_fixed:
+
+ movq %rsp, %rdi
+ call do_SYSENTER_32
+ /* XEN PV guests always use IRET path */
+ ALTERNATIVE "testl %eax, %eax; jz swapgs_restore_regs_and_return_to_usermode", \
+ "jmp swapgs_restore_regs_and_return_to_usermode", X86_FEATURE_XENPV
+ jmp sysret32_from_system_call
+
+.Lsysenter_fix_flags:
+ pushq $X86_EFLAGS_FIXED
+ popfq
+ jmp .Lsysenter_flags_fixed
+SYM_INNER_LABEL(__end_entry_SYSENTER_compat, SYM_L_GLOBAL)
+SYM_CODE_END(entry_SYSENTER_compat)
+
+/*
+ * 32-bit SYSCALL entry.
+ *
+ * 32-bit system calls through the vDSO's __kernel_vsyscall enter here
+ * on 64-bit kernels running on AMD CPUs.
+ *
+ * The SYSCALL instruction, in principle, should *only* occur in the
+ * vDSO. In practice, it appears that this really is the case.
+ * As evidence:
+ *
+ * - The calling convention for SYSCALL has changed several times without
+ * anyone noticing.
+ *
+ * - Prior to the in-kernel X86_BUG_SYSRET_SS_ATTRS fixup, anything
+ * user task that did SYSCALL without immediately reloading SS
+ * would randomly crash.
+ *
+ * - Most programmers do not directly target AMD CPUs, and the 32-bit
+ * SYSCALL instruction does not exist on Intel CPUs. Even on AMD
+ * CPUs, Linux disables the SYSCALL instruction on 32-bit kernels
+ * because the SYSCALL instruction in legacy/native 32-bit mode (as
+ * opposed to compat mode) is sufficiently poorly designed as to be
+ * essentially unusable.
+ *
+ * 32-bit SYSCALL saves RIP to RCX, clears RFLAGS.RF, then saves
+ * RFLAGS to R11, then loads new SS, CS, and RIP from previously
+ * programmed MSRs. RFLAGS gets masked by a value from another MSR
+ * (so CLD and CLAC are not needed). SYSCALL does not save anything on
+ * the stack and does not change RSP.
+ *
+ * Note: RFLAGS saving+masking-with-MSR happens only in Long mode
+ * (in legacy 32-bit mode, IF, RF and VM bits are cleared and that's it).
+ * Don't get confused: RFLAGS saving+masking depends on Long Mode Active bit
+ * (EFER.LMA=1), NOT on bitness of userspace where SYSCALL executes
+ * or target CS descriptor's L bit (SYSCALL does not read segment descriptors).
+ *
+ * Arguments:
+ * eax system call number
+ * ecx return address
+ * ebx arg1
+ * ebp arg2 (note: not saved in the stack frame, should not be touched)
+ * edx arg3
+ * esi arg4
+ * edi arg5
+ * esp user stack
+ * 0(%esp) arg6
+ */
+SYM_CODE_START(entry_SYSCALL_compat)
+ UNWIND_HINT_ENTRY
+ ENDBR
+ /* Interrupts are off on entry. */
+ swapgs
+
+ /* Stash user ESP */
+ movl %esp, %r8d
+
+ /* Use %rsp as scratch reg. User ESP is stashed in r8 */
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%rsp
+
+ /* Switch to the kernel stack */
+ movq PER_CPU_VAR(pcpu_hot + X86_top_of_stack), %rsp
+
+SYM_INNER_LABEL(entry_SYSCALL_compat_safe_stack, SYM_L_GLOBAL)
+ ANNOTATE_NOENDBR
+
+ /* Construct struct pt_regs on stack */
+ pushq $__USER_DS /* pt_regs->ss */
+ pushq %r8 /* pt_regs->sp */
+ pushq %r11 /* pt_regs->flags */
+ pushq $__USER32_CS /* pt_regs->cs */
+ pushq %rcx /* pt_regs->ip */
+SYM_INNER_LABEL(entry_SYSCALL_compat_after_hwframe, SYM_L_GLOBAL)
+ movl %eax, %eax /* discard orig_ax high bits */
+ pushq %rax /* pt_regs->orig_ax */
+ PUSH_AND_CLEAR_REGS rcx=%rbp rax=$-ENOSYS
+ UNWIND_HINT_REGS
+
+ IBRS_ENTER
+ UNTRAIN_RET
+
+ movq %rsp, %rdi
+ call do_fast_syscall_32
+ /* XEN PV guests always use IRET path */
+ ALTERNATIVE "testl %eax, %eax; jz swapgs_restore_regs_and_return_to_usermode", \
+ "jmp swapgs_restore_regs_and_return_to_usermode", X86_FEATURE_XENPV
+
+ /* Opportunistic SYSRET */
+sysret32_from_system_call:
+ /*
+ * We are not going to return to userspace from the trampoline
+ * stack. So let's erase the thread stack right now.
+ */
+ STACKLEAK_ERASE
+
+ IBRS_EXIT
+
+ movq RBX(%rsp), %rbx /* pt_regs->rbx */
+ movq RBP(%rsp), %rbp /* pt_regs->rbp */
+ movq EFLAGS(%rsp), %r11 /* pt_regs->flags (in r11) */
+ movq RIP(%rsp), %rcx /* pt_regs->ip (in rcx) */
+ addq $RAX, %rsp /* Skip r8-r15 */
+ popq %rax /* pt_regs->rax */
+ popq %rdx /* Skip pt_regs->cx */
+ popq %rdx /* pt_regs->dx */
+ popq %rsi /* pt_regs->si */
+ popq %rdi /* pt_regs->di */
+
+ /*
+ * USERGS_SYSRET32 does:
+ * GSBASE = user's GS base
+ * EIP = ECX
+ * RFLAGS = R11
+ * CS = __USER32_CS
+ * SS = __USER_DS
+ *
+ * ECX will not match pt_regs->cx, but we're returning to a vDSO
+ * trampoline that will fix up RCX, so this is okay.
+ *
+ * R12-R15 are callee-saved, so they contain whatever was in them
+ * when the system call started, which is already known to user
+ * code. We zero R8-R10 to avoid info leaks.
+ */
+ movq RSP-ORIG_RAX(%rsp), %rsp
+SYM_INNER_LABEL(entry_SYSRETL_compat_unsafe_stack, SYM_L_GLOBAL)
+ ANNOTATE_NOENDBR
+
+ /*
+ * The original userspace %rsp (RSP-ORIG_RAX(%rsp)) is stored
+ * on the process stack which is not mapped to userspace and
+ * not readable after we SWITCH_TO_USER_CR3. Delay the CR3
+ * switch until after after the last reference to the process
+ * stack.
+ *
+ * %r8/%r9 are zeroed before the sysret, thus safe to clobber.
+ */
+ SWITCH_TO_USER_CR3_NOSTACK scratch_reg=%r8 scratch_reg2=%r9
+
+ xorl %r8d, %r8d
+ xorl %r9d, %r9d
+ xorl %r10d, %r10d
+ swapgs
+ sysretl
+SYM_INNER_LABEL(entry_SYSRETL_compat_end, SYM_L_GLOBAL)
+ ANNOTATE_NOENDBR
+ int3
+SYM_CODE_END(entry_SYSCALL_compat)
+
+/*
+ * 32-bit legacy system call entry.
+ *
+ * 32-bit x86 Linux system calls traditionally used the INT $0x80
+ * instruction. INT $0x80 lands here.
+ *
+ * This entry point can be used by 32-bit and 64-bit programs to perform
+ * 32-bit system calls. Instances of INT $0x80 can be found inline in
+ * various programs and libraries. It is also used by the vDSO's
+ * __kernel_vsyscall fallback for hardware that doesn't support a faster
+ * entry method. Restarted 32-bit system calls also fall back to INT
+ * $0x80 regardless of what instruction was originally used to do the
+ * system call.
+ *
+ * This is considered a slow path. It is not used by most libc
+ * implementations on modern hardware except during process startup.
+ *
+ * Arguments:
+ * eax system call number
+ * ebx arg1
+ * ecx arg2
+ * edx arg3
+ * esi arg4
+ * edi arg5
+ * ebp arg6
+ */
+SYM_CODE_START(entry_INT80_compat)
+ UNWIND_HINT_ENTRY
+ ENDBR
+ /*
+ * Interrupts are off on entry.
+ */
+ ASM_CLAC /* Do this early to minimize exposure */
+ ALTERNATIVE "swapgs", "", X86_FEATURE_XENPV
+
+ /*
+ * User tracing code (ptrace or signal handlers) might assume that
+ * the saved RAX contains a 32-bit number when we're invoking a 32-bit
+ * syscall. Just in case the high bits are nonzero, zero-extend
+ * the syscall number. (This could almost certainly be deleted
+ * with no ill effects.)
+ */
+ movl %eax, %eax
+
+ /* switch to thread stack expects orig_ax and rdi to be pushed */
+ pushq %rax /* pt_regs->orig_ax */
+
+ /* Need to switch before accessing the thread stack. */
+ SWITCH_TO_KERNEL_CR3 scratch_reg=%rax
+
+ /* In the Xen PV case we already run on the thread stack. */
+ ALTERNATIVE "", "jmp .Lint80_keep_stack", X86_FEATURE_XENPV
+
+ movq %rsp, %rax
+ movq PER_CPU_VAR(pcpu_hot + X86_top_of_stack), %rsp
+
+ pushq 5*8(%rax) /* regs->ss */
+ pushq 4*8(%rax) /* regs->rsp */
+ pushq 3*8(%rax) /* regs->eflags */
+ pushq 2*8(%rax) /* regs->cs */
+ pushq 1*8(%rax) /* regs->ip */
+ pushq 0*8(%rax) /* regs->orig_ax */
+.Lint80_keep_stack:
+
+ PUSH_AND_CLEAR_REGS rax=$-ENOSYS
+ UNWIND_HINT_REGS
+
+ cld
+
+ IBRS_ENTER
+ UNTRAIN_RET
+
+ movq %rsp, %rdi
+ call do_int80_syscall_32
+ jmp swapgs_restore_regs_and_return_to_usermode
+SYM_CODE_END(entry_INT80_compat)
diff --git a/arch/x86/entry/syscall_32.c b/arch/x86/entry/syscall_32.c
new file mode 100644
index 000000000000..8cfc9bc73e7f
--- /dev/null
+++ b/arch/x86/entry/syscall_32.c
@@ -0,0 +1,25 @@
+// SPDX-License-Identifier: GPL-2.0
+/* System call table for i386. */
+
+#include <linux/linkage.h>
+#include <linux/sys.h>
+#include <linux/cache.h>
+#include <linux/syscalls.h>
+#include <asm/syscall.h>
+
+#ifdef CONFIG_IA32_EMULATION
+#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, compat)
+#else
+#define __SYSCALL_WITH_COMPAT(nr, native, compat) __SYSCALL(nr, native)
+#endif
+
+#define __SYSCALL(nr, sym) extern long __ia32_##sym(const struct pt_regs *);
+
+#include <asm/syscalls_32.h>
+#undef __SYSCALL
+
+#define __SYSCALL(nr, sym) __ia32_##sym,
+
+__visible const sys_call_ptr_t ia32_sys_call_table[] = {
+#include <asm/syscalls_32.h>
+};
diff --git a/arch/x86/entry/syscall_64.c b/arch/x86/entry/syscall_64.c
new file mode 100644
index 000000000000..be120eec1fc9
--- /dev/null
+++ b/arch/x86/entry/syscall_64.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/* System call table for x86-64. */
+
+#include <linux/linkage.h>
+#include <linux/sys.h>
+#include <linux/cache.h>
+#include <linux/syscalls.h>
+#include <asm/syscall.h>
+
+#define __SYSCALL(nr, sym) extern long __x64_##sym(const struct pt_regs *);
+#include <asm/syscalls_64.h>
+#undef __SYSCALL
+
+#define __SYSCALL(nr, sym) __x64_##sym,
+
+asmlinkage const sys_call_ptr_t sys_call_table[] = {
+#include <asm/syscalls_64.h>
+};
diff --git a/arch/x86/entry/syscall_x32.c b/arch/x86/entry/syscall_x32.c
new file mode 100644
index 000000000000..bdd0e03a1265
--- /dev/null
+++ b/arch/x86/entry/syscall_x32.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0
+/* System call table for x32 ABI. */
+
+#include <linux/linkage.h>
+#include <linux/sys.h>
+#include <linux/cache.h>
+#include <linux/syscalls.h>
+#include <asm/syscall.h>
+
+#define __SYSCALL(nr, sym) extern long __x64_##sym(const struct pt_regs *);
+#include <asm/syscalls_x32.h>
+#undef __SYSCALL
+
+#define __SYSCALL(nr, sym) __x64_##sym,
+
+asmlinkage const sys_call_ptr_t x32_sys_call_table[] = {
+#include <asm/syscalls_x32.h>
+};
diff --git a/arch/x86/entry/syscalls/Makefile b/arch/x86/entry/syscalls/Makefile
new file mode 100644
index 000000000000..eca5d6eff132
--- /dev/null
+++ b/arch/x86/entry/syscalls/Makefile
@@ -0,0 +1,78 @@
+# SPDX-License-Identifier: GPL-2.0
+out := arch/$(SRCARCH)/include/generated/asm
+uapi := arch/$(SRCARCH)/include/generated/uapi/asm
+
+# Create output directory if not already present
+$(shell mkdir -p $(out) $(uapi))
+
+syscall32 := $(src)/syscall_32.tbl
+syscall64 := $(src)/syscall_64.tbl
+
+syshdr := $(srctree)/scripts/syscallhdr.sh
+systbl := $(srctree)/scripts/syscalltbl.sh
+offset :=
+prefix :=
+
+quiet_cmd_syshdr = SYSHDR $@
+ cmd_syshdr = $(CONFIG_SHELL) $(syshdr) --abis $(abis) --emit-nr \
+ $(if $(offset),--offset $(offset)) \
+ $(if $(prefix),--prefix $(prefix)) \
+ $< $@
+quiet_cmd_systbl = SYSTBL $@
+ cmd_systbl = $(CONFIG_SHELL) $(systbl) --abis $(abis) $< $@
+
+quiet_cmd_hypercalls = HYPERCALLS $@
+ cmd_hypercalls = $(CONFIG_SHELL) '$<' $@ $(filter-out $<, $(real-prereqs))
+
+$(uapi)/unistd_32.h: abis := i386
+$(uapi)/unistd_32.h: $(syscall32) $(syshdr) FORCE
+ $(call if_changed,syshdr)
+
+$(out)/unistd_32_ia32.h: abis := i386
+$(out)/unistd_32_ia32.h: prefix := ia32_
+$(out)/unistd_32_ia32.h: $(syscall32) $(syshdr) FORCE
+ $(call if_changed,syshdr)
+
+$(uapi)/unistd_x32.h: abis := common,x32
+$(uapi)/unistd_x32.h: offset := __X32_SYSCALL_BIT
+$(uapi)/unistd_x32.h: $(syscall64) $(syshdr) FORCE
+ $(call if_changed,syshdr)
+
+$(uapi)/unistd_64.h: abis := common,64
+$(uapi)/unistd_64.h: $(syscall64) $(syshdr) FORCE
+ $(call if_changed,syshdr)
+
+$(out)/unistd_64_x32.h: abis := x32
+$(out)/unistd_64_x32.h: prefix := x32_
+$(out)/unistd_64_x32.h: $(syscall64) $(syshdr) FORCE
+ $(call if_changed,syshdr)
+
+$(out)/syscalls_32.h: abis := i386
+$(out)/syscalls_32.h: $(syscall32) $(systbl) FORCE
+ $(call if_changed,systbl)
+$(out)/syscalls_64.h: abis := common,64
+$(out)/syscalls_64.h: $(syscall64) $(systbl) FORCE
+ $(call if_changed,systbl)
+$(out)/syscalls_x32.h: abis := common,x32
+$(out)/syscalls_x32.h: $(syscall64) $(systbl) FORCE
+ $(call if_changed,systbl)
+
+$(out)/xen-hypercalls.h: $(srctree)/scripts/xen-hypercalls.sh FORCE
+ $(call if_changed,hypercalls)
+
+$(out)/xen-hypercalls.h: $(srctree)/include/xen/interface/xen*.h
+
+uapisyshdr-y += unistd_32.h unistd_64.h unistd_x32.h
+syshdr-y += syscalls_32.h
+syshdr-$(CONFIG_X86_64) += unistd_32_ia32.h unistd_64_x32.h
+syshdr-$(CONFIG_X86_64) += syscalls_64.h
+syshdr-$(CONFIG_X86_X32_ABI) += syscalls_x32.h
+syshdr-$(CONFIG_XEN) += xen-hypercalls.h
+
+uapisyshdr-y := $(addprefix $(uapi)/, $(uapisyshdr-y))
+syshdr-y := $(addprefix $(out)/, $(syshdr-y))
+targets += $(addprefix ../../../../, $(uapisyshdr-y) $(syshdr-y))
+
+PHONY += all
+all: $(uapisyshdr-y) $(syshdr-y)
+ @:
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
new file mode 100644
index 000000000000..320480a8db4f
--- /dev/null
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -0,0 +1,457 @@
+#
+# 32-bit system call numbers and entry vectors
+#
+# The format is:
+# <number> <abi> <name> <entry point> <compat entry point>
+#
+# The __ia32_sys and __ia32_compat_sys stubs are created on-the-fly for
+# sys_*() system calls and compat_sys_*() compat system calls if
+# IA32_EMULATION is defined, and expect struct pt_regs *regs as their only
+# parameter.
+#
+# The abi is always "i386" for this file.
+#
+0 i386 restart_syscall sys_restart_syscall
+1 i386 exit sys_exit
+2 i386 fork sys_fork
+3 i386 read sys_read
+4 i386 write sys_write
+5 i386 open sys_open compat_sys_open
+6 i386 close sys_close
+7 i386 waitpid sys_waitpid
+8 i386 creat sys_creat
+9 i386 link sys_link
+10 i386 unlink sys_unlink
+11 i386 execve sys_execve compat_sys_execve
+12 i386 chdir sys_chdir
+13 i386 time sys_time32
+14 i386 mknod sys_mknod
+15 i386 chmod sys_chmod
+16 i386 lchown sys_lchown16
+17 i386 break
+18 i386 oldstat sys_stat
+19 i386 lseek sys_lseek compat_sys_lseek
+20 i386 getpid sys_getpid
+21 i386 mount sys_mount
+22 i386 umount sys_oldumount
+23 i386 setuid sys_setuid16
+24 i386 getuid sys_getuid16
+25 i386 stime sys_stime32
+26 i386 ptrace sys_ptrace compat_sys_ptrace
+27 i386 alarm sys_alarm
+28 i386 oldfstat sys_fstat
+29 i386 pause sys_pause
+30 i386 utime sys_utime32
+31 i386 stty
+32 i386 gtty
+33 i386 access sys_access
+34 i386 nice sys_nice
+35 i386 ftime
+36 i386 sync sys_sync
+37 i386 kill sys_kill
+38 i386 rename sys_rename
+39 i386 mkdir sys_mkdir
+40 i386 rmdir sys_rmdir
+41 i386 dup sys_dup
+42 i386 pipe sys_pipe
+43 i386 times sys_times compat_sys_times
+44 i386 prof
+45 i386 brk sys_brk
+46 i386 setgid sys_setgid16
+47 i386 getgid sys_getgid16
+48 i386 signal sys_signal
+49 i386 geteuid sys_geteuid16
+50 i386 getegid sys_getegid16
+51 i386 acct sys_acct
+52 i386 umount2 sys_umount
+53 i386 lock
+54 i386 ioctl sys_ioctl compat_sys_ioctl
+55 i386 fcntl sys_fcntl compat_sys_fcntl64
+56 i386 mpx
+57 i386 setpgid sys_setpgid
+58 i386 ulimit
+59 i386 oldolduname sys_olduname
+60 i386 umask sys_umask
+61 i386 chroot sys_chroot
+62 i386 ustat sys_ustat compat_sys_ustat
+63 i386 dup2 sys_dup2
+64 i386 getppid sys_getppid
+65 i386 getpgrp sys_getpgrp
+66 i386 setsid sys_setsid
+67 i386 sigaction sys_sigaction compat_sys_sigaction
+68 i386 sgetmask sys_sgetmask
+69 i386 ssetmask sys_ssetmask
+70 i386 setreuid sys_setreuid16
+71 i386 setregid sys_setregid16
+72 i386 sigsuspend sys_sigsuspend
+73 i386 sigpending sys_sigpending compat_sys_sigpending
+74 i386 sethostname sys_sethostname
+75 i386 setrlimit sys_setrlimit compat_sys_setrlimit
+76 i386 getrlimit sys_old_getrlimit compat_sys_old_getrlimit
+77 i386 getrusage sys_getrusage compat_sys_getrusage
+78 i386 gettimeofday sys_gettimeofday compat_sys_gettimeofday
+79 i386 settimeofday sys_settimeofday compat_sys_settimeofday
+80 i386 getgroups sys_getgroups16
+81 i386 setgroups sys_setgroups16
+82 i386 select sys_old_select compat_sys_old_select
+83 i386 symlink sys_symlink
+84 i386 oldlstat sys_lstat
+85 i386 readlink sys_readlink
+86 i386 uselib sys_uselib
+87 i386 swapon sys_swapon
+88 i386 reboot sys_reboot
+89 i386 readdir sys_old_readdir compat_sys_old_readdir
+90 i386 mmap sys_old_mmap compat_sys_ia32_mmap
+91 i386 munmap sys_munmap
+92 i386 truncate sys_truncate compat_sys_truncate
+93 i386 ftruncate sys_ftruncate compat_sys_ftruncate
+94 i386 fchmod sys_fchmod
+95 i386 fchown sys_fchown16
+96 i386 getpriority sys_getpriority
+97 i386 setpriority sys_setpriority
+98 i386 profil
+99 i386 statfs sys_statfs compat_sys_statfs
+100 i386 fstatfs sys_fstatfs compat_sys_fstatfs
+101 i386 ioperm sys_ioperm
+102 i386 socketcall sys_socketcall compat_sys_socketcall
+103 i386 syslog sys_syslog
+104 i386 setitimer sys_setitimer compat_sys_setitimer
+105 i386 getitimer sys_getitimer compat_sys_getitimer
+106 i386 stat sys_newstat compat_sys_newstat
+107 i386 lstat sys_newlstat compat_sys_newlstat
+108 i386 fstat sys_newfstat compat_sys_newfstat
+109 i386 olduname sys_uname
+110 i386 iopl sys_iopl
+111 i386 vhangup sys_vhangup
+112 i386 idle
+113 i386 vm86old sys_vm86old sys_ni_syscall
+114 i386 wait4 sys_wait4 compat_sys_wait4
+115 i386 swapoff sys_swapoff
+116 i386 sysinfo sys_sysinfo compat_sys_sysinfo
+117 i386 ipc sys_ipc compat_sys_ipc
+118 i386 fsync sys_fsync
+119 i386 sigreturn sys_sigreturn compat_sys_sigreturn
+120 i386 clone sys_clone compat_sys_ia32_clone
+121 i386 setdomainname sys_setdomainname
+122 i386 uname sys_newuname
+123 i386 modify_ldt sys_modify_ldt
+124 i386 adjtimex sys_adjtimex_time32
+125 i386 mprotect sys_mprotect
+126 i386 sigprocmask sys_sigprocmask compat_sys_sigprocmask
+127 i386 create_module
+128 i386 init_module sys_init_module
+129 i386 delete_module sys_delete_module
+130 i386 get_kernel_syms
+131 i386 quotactl sys_quotactl
+132 i386 getpgid sys_getpgid
+133 i386 fchdir sys_fchdir
+134 i386 bdflush sys_ni_syscall
+135 i386 sysfs sys_sysfs
+136 i386 personality sys_personality
+137 i386 afs_syscall
+138 i386 setfsuid sys_setfsuid16
+139 i386 setfsgid sys_setfsgid16
+140 i386 _llseek sys_llseek
+141 i386 getdents sys_getdents compat_sys_getdents
+142 i386 _newselect sys_select compat_sys_select
+143 i386 flock sys_flock
+144 i386 msync sys_msync
+145 i386 readv sys_readv
+146 i386 writev sys_writev
+147 i386 getsid sys_getsid
+148 i386 fdatasync sys_fdatasync
+149 i386 _sysctl sys_ni_syscall
+150 i386 mlock sys_mlock
+151 i386 munlock sys_munlock
+152 i386 mlockall sys_mlockall
+153 i386 munlockall sys_munlockall
+154 i386 sched_setparam sys_sched_setparam
+155 i386 sched_getparam sys_sched_getparam
+156 i386 sched_setscheduler sys_sched_setscheduler
+157 i386 sched_getscheduler sys_sched_getscheduler
+158 i386 sched_yield sys_sched_yield
+159 i386 sched_get_priority_max sys_sched_get_priority_max
+160 i386 sched_get_priority_min sys_sched_get_priority_min
+161 i386 sched_rr_get_interval sys_sched_rr_get_interval_time32
+162 i386 nanosleep sys_nanosleep_time32
+163 i386 mremap sys_mremap
+164 i386 setresuid sys_setresuid16
+165 i386 getresuid sys_getresuid16
+166 i386 vm86 sys_vm86 sys_ni_syscall
+167 i386 query_module
+168 i386 poll sys_poll
+169 i386 nfsservctl
+170 i386 setresgid sys_setresgid16
+171 i386 getresgid sys_getresgid16
+172 i386 prctl sys_prctl
+173 i386 rt_sigreturn sys_rt_sigreturn compat_sys_rt_sigreturn
+174 i386 rt_sigaction sys_rt_sigaction compat_sys_rt_sigaction
+175 i386 rt_sigprocmask sys_rt_sigprocmask compat_sys_rt_sigprocmask
+176 i386 rt_sigpending sys_rt_sigpending compat_sys_rt_sigpending
+177 i386 rt_sigtimedwait sys_rt_sigtimedwait_time32 compat_sys_rt_sigtimedwait_time32
+178 i386 rt_sigqueueinfo sys_rt_sigqueueinfo compat_sys_rt_sigqueueinfo
+179 i386 rt_sigsuspend sys_rt_sigsuspend compat_sys_rt_sigsuspend
+180 i386 pread64 sys_ia32_pread64
+181 i386 pwrite64 sys_ia32_pwrite64
+182 i386 chown sys_chown16
+183 i386 getcwd sys_getcwd
+184 i386 capget sys_capget
+185 i386 capset sys_capset
+186 i386 sigaltstack sys_sigaltstack compat_sys_sigaltstack
+187 i386 sendfile sys_sendfile compat_sys_sendfile
+188 i386 getpmsg
+189 i386 putpmsg
+190 i386 vfork sys_vfork
+191 i386 ugetrlimit sys_getrlimit compat_sys_getrlimit
+192 i386 mmap2 sys_mmap_pgoff
+193 i386 truncate64 sys_ia32_truncate64
+194 i386 ftruncate64 sys_ia32_ftruncate64
+195 i386 stat64 sys_stat64 compat_sys_ia32_stat64
+196 i386 lstat64 sys_lstat64 compat_sys_ia32_lstat64
+197 i386 fstat64 sys_fstat64 compat_sys_ia32_fstat64
+198 i386 lchown32 sys_lchown
+199 i386 getuid32 sys_getuid
+200 i386 getgid32 sys_getgid
+201 i386 geteuid32 sys_geteuid
+202 i386 getegid32 sys_getegid
+203 i386 setreuid32 sys_setreuid
+204 i386 setregid32 sys_setregid
+205 i386 getgroups32 sys_getgroups
+206 i386 setgroups32 sys_setgroups
+207 i386 fchown32 sys_fchown
+208 i386 setresuid32 sys_setresuid
+209 i386 getresuid32 sys_getresuid
+210 i386 setresgid32 sys_setresgid
+211 i386 getresgid32 sys_getresgid
+212 i386 chown32 sys_chown
+213 i386 setuid32 sys_setuid
+214 i386 setgid32 sys_setgid
+215 i386 setfsuid32 sys_setfsuid
+216 i386 setfsgid32 sys_setfsgid
+217 i386 pivot_root sys_pivot_root
+218 i386 mincore sys_mincore
+219 i386 madvise sys_madvise
+220 i386 getdents64 sys_getdents64
+221 i386 fcntl64 sys_fcntl64 compat_sys_fcntl64
+# 222 is unused
+# 223 is unused
+224 i386 gettid sys_gettid
+225 i386 readahead sys_ia32_readahead
+226 i386 setxattr sys_setxattr
+227 i386 lsetxattr sys_lsetxattr
+228 i386 fsetxattr sys_fsetxattr
+229 i386 getxattr sys_getxattr
+230 i386 lgetxattr sys_lgetxattr
+231 i386 fgetxattr sys_fgetxattr
+232 i386 listxattr sys_listxattr
+233 i386 llistxattr sys_llistxattr
+234 i386 flistxattr sys_flistxattr
+235 i386 removexattr sys_removexattr
+236 i386 lremovexattr sys_lremovexattr
+237 i386 fremovexattr sys_fremovexattr
+238 i386 tkill sys_tkill
+239 i386 sendfile64 sys_sendfile64
+240 i386 futex sys_futex_time32
+241 i386 sched_setaffinity sys_sched_setaffinity compat_sys_sched_setaffinity
+242 i386 sched_getaffinity sys_sched_getaffinity compat_sys_sched_getaffinity
+243 i386 set_thread_area sys_set_thread_area
+244 i386 get_thread_area sys_get_thread_area
+245 i386 io_setup sys_io_setup compat_sys_io_setup
+246 i386 io_destroy sys_io_destroy
+247 i386 io_getevents sys_io_getevents_time32
+248 i386 io_submit sys_io_submit compat_sys_io_submit
+249 i386 io_cancel sys_io_cancel
+250 i386 fadvise64 sys_ia32_fadvise64
+# 251 is available for reuse (was briefly sys_set_zone_reclaim)
+252 i386 exit_group sys_exit_group
+253 i386 lookup_dcookie sys_lookup_dcookie compat_sys_lookup_dcookie
+254 i386 epoll_create sys_epoll_create
+255 i386 epoll_ctl sys_epoll_ctl
+256 i386 epoll_wait sys_epoll_wait
+257 i386 remap_file_pages sys_remap_file_pages
+258 i386 set_tid_address sys_set_tid_address
+259 i386 timer_create sys_timer_create compat_sys_timer_create
+260 i386 timer_settime sys_timer_settime32
+261 i386 timer_gettime sys_timer_gettime32
+262 i386 timer_getoverrun sys_timer_getoverrun
+263 i386 timer_delete sys_timer_delete
+264 i386 clock_settime sys_clock_settime32
+265 i386 clock_gettime sys_clock_gettime32
+266 i386 clock_getres sys_clock_getres_time32
+267 i386 clock_nanosleep sys_clock_nanosleep_time32
+268 i386 statfs64 sys_statfs64 compat_sys_statfs64
+269 i386 fstatfs64 sys_fstatfs64 compat_sys_fstatfs64
+270 i386 tgkill sys_tgkill
+271 i386 utimes sys_utimes_time32
+272 i386 fadvise64_64 sys_ia32_fadvise64_64
+273 i386 vserver
+274 i386 mbind sys_mbind
+275 i386 get_mempolicy sys_get_mempolicy
+276 i386 set_mempolicy sys_set_mempolicy
+277 i386 mq_open sys_mq_open compat_sys_mq_open
+278 i386 mq_unlink sys_mq_unlink
+279 i386 mq_timedsend sys_mq_timedsend_time32
+280 i386 mq_timedreceive sys_mq_timedreceive_time32
+281 i386 mq_notify sys_mq_notify compat_sys_mq_notify
+282 i386 mq_getsetattr sys_mq_getsetattr compat_sys_mq_getsetattr
+283 i386 kexec_load sys_kexec_load compat_sys_kexec_load
+284 i386 waitid sys_waitid compat_sys_waitid
+# 285 sys_setaltroot
+286 i386 add_key sys_add_key
+287 i386 request_key sys_request_key
+288 i386 keyctl sys_keyctl compat_sys_keyctl
+289 i386 ioprio_set sys_ioprio_set
+290 i386 ioprio_get sys_ioprio_get
+291 i386 inotify_init sys_inotify_init
+292 i386 inotify_add_watch sys_inotify_add_watch
+293 i386 inotify_rm_watch sys_inotify_rm_watch
+294 i386 migrate_pages sys_migrate_pages
+295 i386 openat sys_openat compat_sys_openat
+296 i386 mkdirat sys_mkdirat
+297 i386 mknodat sys_mknodat
+298 i386 fchownat sys_fchownat
+299 i386 futimesat sys_futimesat_time32
+300 i386 fstatat64 sys_fstatat64 compat_sys_ia32_fstatat64
+301 i386 unlinkat sys_unlinkat
+302 i386 renameat sys_renameat
+303 i386 linkat sys_linkat
+304 i386 symlinkat sys_symlinkat
+305 i386 readlinkat sys_readlinkat
+306 i386 fchmodat sys_fchmodat
+307 i386 faccessat sys_faccessat
+308 i386 pselect6 sys_pselect6_time32 compat_sys_pselect6_time32
+309 i386 ppoll sys_ppoll_time32 compat_sys_ppoll_time32
+310 i386 unshare sys_unshare
+311 i386 set_robust_list sys_set_robust_list compat_sys_set_robust_list
+312 i386 get_robust_list sys_get_robust_list compat_sys_get_robust_list
+313 i386 splice sys_splice
+314 i386 sync_file_range sys_ia32_sync_file_range
+315 i386 tee sys_tee
+316 i386 vmsplice sys_vmsplice
+317 i386 move_pages sys_move_pages
+318 i386 getcpu sys_getcpu
+319 i386 epoll_pwait sys_epoll_pwait
+320 i386 utimensat sys_utimensat_time32
+321 i386 signalfd sys_signalfd compat_sys_signalfd
+322 i386 timerfd_create sys_timerfd_create
+323 i386 eventfd sys_eventfd
+324 i386 fallocate sys_ia32_fallocate
+325 i386 timerfd_settime sys_timerfd_settime32
+326 i386 timerfd_gettime sys_timerfd_gettime32
+327 i386 signalfd4 sys_signalfd4 compat_sys_signalfd4
+328 i386 eventfd2 sys_eventfd2
+329 i386 epoll_create1 sys_epoll_create1
+330 i386 dup3 sys_dup3
+331 i386 pipe2 sys_pipe2
+332 i386 inotify_init1 sys_inotify_init1
+333 i386 preadv sys_preadv compat_sys_preadv
+334 i386 pwritev sys_pwritev compat_sys_pwritev
+335 i386 rt_tgsigqueueinfo sys_rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo
+336 i386 perf_event_open sys_perf_event_open
+337 i386 recvmmsg sys_recvmmsg_time32 compat_sys_recvmmsg_time32
+338 i386 fanotify_init sys_fanotify_init
+339 i386 fanotify_mark sys_fanotify_mark compat_sys_fanotify_mark
+340 i386 prlimit64 sys_prlimit64
+341 i386 name_to_handle_at sys_name_to_handle_at
+342 i386 open_by_handle_at sys_open_by_handle_at compat_sys_open_by_handle_at
+343 i386 clock_adjtime sys_clock_adjtime32
+344 i386 syncfs sys_syncfs
+345 i386 sendmmsg sys_sendmmsg compat_sys_sendmmsg
+346 i386 setns sys_setns
+347 i386 process_vm_readv sys_process_vm_readv
+348 i386 process_vm_writev sys_process_vm_writev
+349 i386 kcmp sys_kcmp
+350 i386 finit_module sys_finit_module
+351 i386 sched_setattr sys_sched_setattr
+352 i386 sched_getattr sys_sched_getattr
+353 i386 renameat2 sys_renameat2
+354 i386 seccomp sys_seccomp
+355 i386 getrandom sys_getrandom
+356 i386 memfd_create sys_memfd_create
+357 i386 bpf sys_bpf
+358 i386 execveat sys_execveat compat_sys_execveat
+359 i386 socket sys_socket
+360 i386 socketpair sys_socketpair
+361 i386 bind sys_bind
+362 i386 connect sys_connect
+363 i386 listen sys_listen
+364 i386 accept4 sys_accept4
+365 i386 getsockopt sys_getsockopt sys_getsockopt
+366 i386 setsockopt sys_setsockopt sys_setsockopt
+367 i386 getsockname sys_getsockname
+368 i386 getpeername sys_getpeername
+369 i386 sendto sys_sendto
+370 i386 sendmsg sys_sendmsg compat_sys_sendmsg
+371 i386 recvfrom sys_recvfrom compat_sys_recvfrom
+372 i386 recvmsg sys_recvmsg compat_sys_recvmsg
+373 i386 shutdown sys_shutdown
+374 i386 userfaultfd sys_userfaultfd
+375 i386 membarrier sys_membarrier
+376 i386 mlock2 sys_mlock2
+377 i386 copy_file_range sys_copy_file_range
+378 i386 preadv2 sys_preadv2 compat_sys_preadv2
+379 i386 pwritev2 sys_pwritev2 compat_sys_pwritev2
+380 i386 pkey_mprotect sys_pkey_mprotect
+381 i386 pkey_alloc sys_pkey_alloc
+382 i386 pkey_free sys_pkey_free
+383 i386 statx sys_statx
+384 i386 arch_prctl sys_arch_prctl compat_sys_arch_prctl
+385 i386 io_pgetevents sys_io_pgetevents_time32 compat_sys_io_pgetevents
+386 i386 rseq sys_rseq
+393 i386 semget sys_semget
+394 i386 semctl sys_semctl compat_sys_semctl
+395 i386 shmget sys_shmget
+396 i386 shmctl sys_shmctl compat_sys_shmctl
+397 i386 shmat sys_shmat compat_sys_shmat
+398 i386 shmdt sys_shmdt
+399 i386 msgget sys_msgget
+400 i386 msgsnd sys_msgsnd compat_sys_msgsnd
+401 i386 msgrcv sys_msgrcv compat_sys_msgrcv
+402 i386 msgctl sys_msgctl compat_sys_msgctl
+403 i386 clock_gettime64 sys_clock_gettime
+404 i386 clock_settime64 sys_clock_settime
+405 i386 clock_adjtime64 sys_clock_adjtime
+406 i386 clock_getres_time64 sys_clock_getres
+407 i386 clock_nanosleep_time64 sys_clock_nanosleep
+408 i386 timer_gettime64 sys_timer_gettime
+409 i386 timer_settime64 sys_timer_settime
+410 i386 timerfd_gettime64 sys_timerfd_gettime
+411 i386 timerfd_settime64 sys_timerfd_settime
+412 i386 utimensat_time64 sys_utimensat
+413 i386 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64
+414 i386 ppoll_time64 sys_ppoll compat_sys_ppoll_time64
+416 i386 io_pgetevents_time64 sys_io_pgetevents
+417 i386 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64
+418 i386 mq_timedsend_time64 sys_mq_timedsend
+419 i386 mq_timedreceive_time64 sys_mq_timedreceive
+420 i386 semtimedop_time64 sys_semtimedop
+421 i386 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64
+422 i386 futex_time64 sys_futex
+423 i386 sched_rr_get_interval_time64 sys_sched_rr_get_interval
+424 i386 pidfd_send_signal sys_pidfd_send_signal
+425 i386 io_uring_setup sys_io_uring_setup
+426 i386 io_uring_enter sys_io_uring_enter
+427 i386 io_uring_register sys_io_uring_register
+428 i386 open_tree sys_open_tree
+429 i386 move_mount sys_move_mount
+430 i386 fsopen sys_fsopen
+431 i386 fsconfig sys_fsconfig
+432 i386 fsmount sys_fsmount
+433 i386 fspick sys_fspick
+434 i386 pidfd_open sys_pidfd_open
+435 i386 clone3 sys_clone3
+436 i386 close_range sys_close_range
+437 i386 openat2 sys_openat2
+438 i386 pidfd_getfd sys_pidfd_getfd
+439 i386 faccessat2 sys_faccessat2
+440 i386 process_madvise sys_process_madvise
+441 i386 epoll_pwait2 sys_epoll_pwait2 compat_sys_epoll_pwait2
+442 i386 mount_setattr sys_mount_setattr
+443 i386 quotactl_fd sys_quotactl_fd
+444 i386 landlock_create_ruleset sys_landlock_create_ruleset
+445 i386 landlock_add_rule sys_landlock_add_rule
+446 i386 landlock_restrict_self sys_landlock_restrict_self
+447 i386 memfd_secret sys_memfd_secret
+448 i386 process_mrelease sys_process_mrelease
+449 i386 futex_waitv sys_futex_waitv
+450 i386 set_mempolicy_home_node sys_set_mempolicy_home_node
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
new file mode 100644
index 000000000000..c84d12608cd2
--- /dev/null
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -0,0 +1,419 @@
+#
+# 64-bit system call numbers and entry vectors
+#
+# The format is:
+# <number> <abi> <name> <entry point>
+#
+# The __x64_sys_*() stubs are created on-the-fly for sys_*() system calls
+#
+# The abi is "common", "64" or "x32" for this file.
+#
+0 common read sys_read
+1 common write sys_write
+2 common open sys_open
+3 common close sys_close
+4 common stat sys_newstat
+5 common fstat sys_newfstat
+6 common lstat sys_newlstat
+7 common poll sys_poll
+8 common lseek sys_lseek
+9 common mmap sys_mmap
+10 common mprotect sys_mprotect
+11 common munmap sys_munmap
+12 common brk sys_brk
+13 64 rt_sigaction sys_rt_sigaction
+14 common rt_sigprocmask sys_rt_sigprocmask
+15 64 rt_sigreturn sys_rt_sigreturn
+16 64 ioctl sys_ioctl
+17 common pread64 sys_pread64
+18 common pwrite64 sys_pwrite64
+19 64 readv sys_readv
+20 64 writev sys_writev
+21 common access sys_access
+22 common pipe sys_pipe
+23 common select sys_select
+24 common sched_yield sys_sched_yield
+25 common mremap sys_mremap
+26 common msync sys_msync
+27 common mincore sys_mincore
+28 common madvise sys_madvise
+29 common shmget sys_shmget
+30 common shmat sys_shmat
+31 common shmctl sys_shmctl
+32 common dup sys_dup
+33 common dup2 sys_dup2
+34 common pause sys_pause
+35 common nanosleep sys_nanosleep
+36 common getitimer sys_getitimer
+37 common alarm sys_alarm
+38 common setitimer sys_setitimer
+39 common getpid sys_getpid
+40 common sendfile sys_sendfile64
+41 common socket sys_socket
+42 common connect sys_connect
+43 common accept sys_accept
+44 common sendto sys_sendto
+45 64 recvfrom sys_recvfrom
+46 64 sendmsg sys_sendmsg
+47 64 recvmsg sys_recvmsg
+48 common shutdown sys_shutdown
+49 common bind sys_bind
+50 common listen sys_listen
+51 common getsockname sys_getsockname
+52 common getpeername sys_getpeername
+53 common socketpair sys_socketpair
+54 64 setsockopt sys_setsockopt
+55 64 getsockopt sys_getsockopt
+56 common clone sys_clone
+57 common fork sys_fork
+58 common vfork sys_vfork
+59 64 execve sys_execve
+60 common exit sys_exit
+61 common wait4 sys_wait4
+62 common kill sys_kill
+63 common uname sys_newuname
+64 common semget sys_semget
+65 common semop sys_semop
+66 common semctl sys_semctl
+67 common shmdt sys_shmdt
+68 common msgget sys_msgget
+69 common msgsnd sys_msgsnd
+70 common msgrcv sys_msgrcv
+71 common msgctl sys_msgctl
+72 common fcntl sys_fcntl
+73 common flock sys_flock
+74 common fsync sys_fsync
+75 common fdatasync sys_fdatasync
+76 common truncate sys_truncate
+77 common ftruncate sys_ftruncate
+78 common getdents sys_getdents
+79 common getcwd sys_getcwd
+80 common chdir sys_chdir
+81 common fchdir sys_fchdir
+82 common rename sys_rename
+83 common mkdir sys_mkdir
+84 common rmdir sys_rmdir
+85 common creat sys_creat
+86 common link sys_link
+87 common unlink sys_unlink
+88 common symlink sys_symlink
+89 common readlink sys_readlink
+90 common chmod sys_chmod
+91 common fchmod sys_fchmod
+92 common chown sys_chown
+93 common fchown sys_fchown
+94 common lchown sys_lchown
+95 common umask sys_umask
+96 common gettimeofday sys_gettimeofday
+97 common getrlimit sys_getrlimit
+98 common getrusage sys_getrusage
+99 common sysinfo sys_sysinfo
+100 common times sys_times
+101 64 ptrace sys_ptrace
+102 common getuid sys_getuid
+103 common syslog sys_syslog
+104 common getgid sys_getgid
+105 common setuid sys_setuid
+106 common setgid sys_setgid
+107 common geteuid sys_geteuid
+108 common getegid sys_getegid
+109 common setpgid sys_setpgid
+110 common getppid sys_getppid
+111 common getpgrp sys_getpgrp
+112 common setsid sys_setsid
+113 common setreuid sys_setreuid
+114 common setregid sys_setregid
+115 common getgroups sys_getgroups
+116 common setgroups sys_setgroups
+117 common setresuid sys_setresuid
+118 common getresuid sys_getresuid
+119 common setresgid sys_setresgid
+120 common getresgid sys_getresgid
+121 common getpgid sys_getpgid
+122 common setfsuid sys_setfsuid
+123 common setfsgid sys_setfsgid
+124 common getsid sys_getsid
+125 common capget sys_capget
+126 common capset sys_capset
+127 64 rt_sigpending sys_rt_sigpending
+128 64 rt_sigtimedwait sys_rt_sigtimedwait
+129 64 rt_sigqueueinfo sys_rt_sigqueueinfo
+130 common rt_sigsuspend sys_rt_sigsuspend
+131 64 sigaltstack sys_sigaltstack
+132 common utime sys_utime
+133 common mknod sys_mknod
+134 64 uselib
+135 common personality sys_personality
+136 common ustat sys_ustat
+137 common statfs sys_statfs
+138 common fstatfs sys_fstatfs
+139 common sysfs sys_sysfs
+140 common getpriority sys_getpriority
+141 common setpriority sys_setpriority
+142 common sched_setparam sys_sched_setparam
+143 common sched_getparam sys_sched_getparam
+144 common sched_setscheduler sys_sched_setscheduler
+145 common sched_getscheduler sys_sched_getscheduler
+146 common sched_get_priority_max sys_sched_get_priority_max
+147 common sched_get_priority_min sys_sched_get_priority_min
+148 common sched_rr_get_interval sys_sched_rr_get_interval
+149 common mlock sys_mlock
+150 common munlock sys_munlock
+151 common mlockall sys_mlockall
+152 common munlockall sys_munlockall
+153 common vhangup sys_vhangup
+154 common modify_ldt sys_modify_ldt
+155 common pivot_root sys_pivot_root
+156 64 _sysctl sys_ni_syscall
+157 common prctl sys_prctl
+158 common arch_prctl sys_arch_prctl
+159 common adjtimex sys_adjtimex
+160 common setrlimit sys_setrlimit
+161 common chroot sys_chroot
+162 common sync sys_sync
+163 common acct sys_acct
+164 common settimeofday sys_settimeofday
+165 common mount sys_mount
+166 common umount2 sys_umount
+167 common swapon sys_swapon
+168 common swapoff sys_swapoff
+169 common reboot sys_reboot
+170 common sethostname sys_sethostname
+171 common setdomainname sys_setdomainname
+172 common iopl sys_iopl
+173 common ioperm sys_ioperm
+174 64 create_module
+175 common init_module sys_init_module
+176 common delete_module sys_delete_module
+177 64 get_kernel_syms
+178 64 query_module
+179 common quotactl sys_quotactl
+180 64 nfsservctl
+181 common getpmsg
+182 common putpmsg
+183 common afs_syscall
+184 common tuxcall
+185 common security
+186 common gettid sys_gettid
+187 common readahead sys_readahead
+188 common setxattr sys_setxattr
+189 common lsetxattr sys_lsetxattr
+190 common fsetxattr sys_fsetxattr
+191 common getxattr sys_getxattr
+192 common lgetxattr sys_lgetxattr
+193 common fgetxattr sys_fgetxattr
+194 common listxattr sys_listxattr
+195 common llistxattr sys_llistxattr
+196 common flistxattr sys_flistxattr
+197 common removexattr sys_removexattr
+198 common lremovexattr sys_lremovexattr
+199 common fremovexattr sys_fremovexattr
+200 common tkill sys_tkill
+201 common time sys_time
+202 common futex sys_futex
+203 common sched_setaffinity sys_sched_setaffinity
+204 common sched_getaffinity sys_sched_getaffinity
+205 64 set_thread_area
+206 64 io_setup sys_io_setup
+207 common io_destroy sys_io_destroy
+208 common io_getevents sys_io_getevents
+209 64 io_submit sys_io_submit
+210 common io_cancel sys_io_cancel
+211 64 get_thread_area
+212 common lookup_dcookie sys_lookup_dcookie
+213 common epoll_create sys_epoll_create
+214 64 epoll_ctl_old
+215 64 epoll_wait_old
+216 common remap_file_pages sys_remap_file_pages
+217 common getdents64 sys_getdents64
+218 common set_tid_address sys_set_tid_address
+219 common restart_syscall sys_restart_syscall
+220 common semtimedop sys_semtimedop
+221 common fadvise64 sys_fadvise64
+222 64 timer_create sys_timer_create
+223 common timer_settime sys_timer_settime
+224 common timer_gettime sys_timer_gettime
+225 common timer_getoverrun sys_timer_getoverrun
+226 common timer_delete sys_timer_delete
+227 common clock_settime sys_clock_settime
+228 common clock_gettime sys_clock_gettime
+229 common clock_getres sys_clock_getres
+230 common clock_nanosleep sys_clock_nanosleep
+231 common exit_group sys_exit_group
+232 common epoll_wait sys_epoll_wait
+233 common epoll_ctl sys_epoll_ctl
+234 common tgkill sys_tgkill
+235 common utimes sys_utimes
+236 64 vserver
+237 common mbind sys_mbind
+238 common set_mempolicy sys_set_mempolicy
+239 common get_mempolicy sys_get_mempolicy
+240 common mq_open sys_mq_open
+241 common mq_unlink sys_mq_unlink
+242 common mq_timedsend sys_mq_timedsend
+243 common mq_timedreceive sys_mq_timedreceive
+244 64 mq_notify sys_mq_notify
+245 common mq_getsetattr sys_mq_getsetattr
+246 64 kexec_load sys_kexec_load
+247 64 waitid sys_waitid
+248 common add_key sys_add_key
+249 common request_key sys_request_key
+250 common keyctl sys_keyctl
+251 common ioprio_set sys_ioprio_set
+252 common ioprio_get sys_ioprio_get
+253 common inotify_init sys_inotify_init
+254 common inotify_add_watch sys_inotify_add_watch
+255 common inotify_rm_watch sys_inotify_rm_watch
+256 common migrate_pages sys_migrate_pages
+257 common openat sys_openat
+258 common mkdirat sys_mkdirat
+259 common mknodat sys_mknodat
+260 common fchownat sys_fchownat
+261 common futimesat sys_futimesat
+262 common newfstatat sys_newfstatat
+263 common unlinkat sys_unlinkat
+264 common renameat sys_renameat
+265 common linkat sys_linkat
+266 common symlinkat sys_symlinkat
+267 common readlinkat sys_readlinkat
+268 common fchmodat sys_fchmodat
+269 common faccessat sys_faccessat
+270 common pselect6 sys_pselect6
+271 common ppoll sys_ppoll
+272 common unshare sys_unshare
+273 64 set_robust_list sys_set_robust_list
+274 64 get_robust_list sys_get_robust_list
+275 common splice sys_splice
+276 common tee sys_tee
+277 common sync_file_range sys_sync_file_range
+278 64 vmsplice sys_vmsplice
+279 64 move_pages sys_move_pages
+280 common utimensat sys_utimensat
+281 common epoll_pwait sys_epoll_pwait
+282 common signalfd sys_signalfd
+283 common timerfd_create sys_timerfd_create
+284 common eventfd sys_eventfd
+285 common fallocate sys_fallocate
+286 common timerfd_settime sys_timerfd_settime
+287 common timerfd_gettime sys_timerfd_gettime
+288 common accept4 sys_accept4
+289 common signalfd4 sys_signalfd4
+290 common eventfd2 sys_eventfd2
+291 common epoll_create1 sys_epoll_create1
+292 common dup3 sys_dup3
+293 common pipe2 sys_pipe2
+294 common inotify_init1 sys_inotify_init1
+295 64 preadv sys_preadv
+296 64 pwritev sys_pwritev
+297 64 rt_tgsigqueueinfo sys_rt_tgsigqueueinfo
+298 common perf_event_open sys_perf_event_open
+299 64 recvmmsg sys_recvmmsg
+300 common fanotify_init sys_fanotify_init
+301 common fanotify_mark sys_fanotify_mark
+302 common prlimit64 sys_prlimit64
+303 common name_to_handle_at sys_name_to_handle_at
+304 common open_by_handle_at sys_open_by_handle_at
+305 common clock_adjtime sys_clock_adjtime
+306 common syncfs sys_syncfs
+307 64 sendmmsg sys_sendmmsg
+308 common setns sys_setns
+309 common getcpu sys_getcpu
+310 64 process_vm_readv sys_process_vm_readv
+311 64 process_vm_writev sys_process_vm_writev
+312 common kcmp sys_kcmp
+313 common finit_module sys_finit_module
+314 common sched_setattr sys_sched_setattr
+315 common sched_getattr sys_sched_getattr
+316 common renameat2 sys_renameat2
+317 common seccomp sys_seccomp
+318 common getrandom sys_getrandom
+319 common memfd_create sys_memfd_create
+320 common kexec_file_load sys_kexec_file_load
+321 common bpf sys_bpf
+322 64 execveat sys_execveat
+323 common userfaultfd sys_userfaultfd
+324 common membarrier sys_membarrier
+325 common mlock2 sys_mlock2
+326 common copy_file_range sys_copy_file_range
+327 64 preadv2 sys_preadv2
+328 64 pwritev2 sys_pwritev2
+329 common pkey_mprotect sys_pkey_mprotect
+330 common pkey_alloc sys_pkey_alloc
+331 common pkey_free sys_pkey_free
+332 common statx sys_statx
+333 common io_pgetevents sys_io_pgetevents
+334 common rseq sys_rseq
+# don't use numbers 387 through 423, add new calls after the last
+# 'common' entry
+424 common pidfd_send_signal sys_pidfd_send_signal
+425 common io_uring_setup sys_io_uring_setup
+426 common io_uring_enter sys_io_uring_enter
+427 common io_uring_register sys_io_uring_register
+428 common open_tree sys_open_tree
+429 common move_mount sys_move_mount
+430 common fsopen sys_fsopen
+431 common fsconfig sys_fsconfig
+432 common fsmount sys_fsmount
+433 common fspick sys_fspick
+434 common pidfd_open sys_pidfd_open
+435 common clone3 sys_clone3
+436 common close_range sys_close_range
+437 common openat2 sys_openat2
+438 common pidfd_getfd sys_pidfd_getfd
+439 common faccessat2 sys_faccessat2
+440 common process_madvise sys_process_madvise
+441 common epoll_pwait2 sys_epoll_pwait2
+442 common mount_setattr sys_mount_setattr
+443 common quotactl_fd sys_quotactl_fd
+444 common landlock_create_ruleset sys_landlock_create_ruleset
+445 common landlock_add_rule sys_landlock_add_rule
+446 common landlock_restrict_self sys_landlock_restrict_self
+447 common memfd_secret sys_memfd_secret
+448 common process_mrelease sys_process_mrelease
+449 common futex_waitv sys_futex_waitv
+450 common set_mempolicy_home_node sys_set_mempolicy_home_node
+
+#
+# Due to a historical design error, certain syscalls are numbered differently
+# in x32 as compared to native x86_64. These syscalls have numbers 512-547.
+# Do not add new syscalls to this range. Numbers 548 and above are available
+# for non-x32 use.
+#
+512 x32 rt_sigaction compat_sys_rt_sigaction
+513 x32 rt_sigreturn compat_sys_x32_rt_sigreturn
+514 x32 ioctl compat_sys_ioctl
+515 x32 readv sys_readv
+516 x32 writev sys_writev
+517 x32 recvfrom compat_sys_recvfrom
+518 x32 sendmsg compat_sys_sendmsg
+519 x32 recvmsg compat_sys_recvmsg
+520 x32 execve compat_sys_execve
+521 x32 ptrace compat_sys_ptrace
+522 x32 rt_sigpending compat_sys_rt_sigpending
+523 x32 rt_sigtimedwait compat_sys_rt_sigtimedwait_time64
+524 x32 rt_sigqueueinfo compat_sys_rt_sigqueueinfo
+525 x32 sigaltstack compat_sys_sigaltstack
+526 x32 timer_create compat_sys_timer_create
+527 x32 mq_notify compat_sys_mq_notify
+528 x32 kexec_load compat_sys_kexec_load
+529 x32 waitid compat_sys_waitid
+530 x32 set_robust_list compat_sys_set_robust_list
+531 x32 get_robust_list compat_sys_get_robust_list
+532 x32 vmsplice sys_vmsplice
+533 x32 move_pages sys_move_pages
+534 x32 preadv compat_sys_preadv64
+535 x32 pwritev compat_sys_pwritev64
+536 x32 rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo
+537 x32 recvmmsg compat_sys_recvmmsg_time64
+538 x32 sendmmsg compat_sys_sendmmsg
+539 x32 process_vm_readv sys_process_vm_readv
+540 x32 process_vm_writev sys_process_vm_writev
+541 x32 setsockopt sys_setsockopt
+542 x32 getsockopt sys_getsockopt
+543 x32 io_setup compat_sys_io_setup
+544 x32 io_submit compat_sys_io_submit
+545 x32 execveat compat_sys_execveat
+546 x32 preadv2 compat_sys_preadv64v2
+547 x32 pwritev2 compat_sys_pwritev64v2
+# This is the end of the legacy x32 range. Numbers 548 and above are
+# not special and are not to be used for x32-specific syscalls.
diff --git a/arch/x86/entry/thunk_32.S b/arch/x86/entry/thunk_32.S
new file mode 100644
index 000000000000..ff6e7003da97
--- /dev/null
+++ b/arch/x86/entry/thunk_32.S
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Trampoline to trace irqs off. (otherwise CALLER_ADDR1 might crash)
+ * Copyright 2008 by Steven Rostedt, Red Hat, Inc
+ * (inspired by Andi Kleen's thunk_64.S)
+ */
+ #include <linux/linkage.h>
+ #include <asm/asm.h>
+ #include <asm/export.h>
+
+ /* put return address in eax (arg1) */
+ .macro THUNK name, func, put_ret_addr_in_eax=0
+SYM_CODE_START_NOALIGN(\name)
+ pushl %eax
+ pushl %ecx
+ pushl %edx
+
+ .if \put_ret_addr_in_eax
+ /* Place EIP in the arg1 */
+ movl 3*4(%esp), %eax
+ .endif
+
+ call \func
+ popl %edx
+ popl %ecx
+ popl %eax
+ RET
+ _ASM_NOKPROBE(\name)
+SYM_CODE_END(\name)
+ .endm
+
+ THUNK preempt_schedule_thunk, preempt_schedule
+ THUNK preempt_schedule_notrace_thunk, preempt_schedule_notrace
+ EXPORT_SYMBOL(preempt_schedule_thunk)
+ EXPORT_SYMBOL(preempt_schedule_notrace_thunk)
+
diff --git a/arch/x86/entry/thunk_64.S b/arch/x86/entry/thunk_64.S
new file mode 100644
index 000000000000..5e37f41e5f14
--- /dev/null
+++ b/arch/x86/entry/thunk_64.S
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Save registers before calling assembly functions. This avoids
+ * disturbance of register allocation in some inline assembly constructs.
+ * Copyright 2001,2002 by Andi Kleen, SuSE Labs.
+ */
+#include <linux/linkage.h>
+#include "calling.h"
+#include <asm/asm.h>
+#include <asm/export.h>
+
+ /* rdi: arg1 ... normal C conventions. rax is saved/restored. */
+ .macro THUNK name, func
+SYM_FUNC_START(\name)
+ pushq %rbp
+ movq %rsp, %rbp
+
+ pushq %rdi
+ pushq %rsi
+ pushq %rdx
+ pushq %rcx
+ pushq %rax
+ pushq %r8
+ pushq %r9
+ pushq %r10
+ pushq %r11
+
+ call \func
+ jmp __thunk_restore
+SYM_FUNC_END(\name)
+ _ASM_NOKPROBE(\name)
+ .endm
+
+ THUNK preempt_schedule_thunk, preempt_schedule
+ THUNK preempt_schedule_notrace_thunk, preempt_schedule_notrace
+ EXPORT_SYMBOL(preempt_schedule_thunk)
+ EXPORT_SYMBOL(preempt_schedule_notrace_thunk)
+
+SYM_CODE_START_LOCAL(__thunk_restore)
+ popq %r11
+ popq %r10
+ popq %r9
+ popq %r8
+ popq %rax
+ popq %rcx
+ popq %rdx
+ popq %rsi
+ popq %rdi
+ popq %rbp
+ RET
+ _ASM_NOKPROBE(__thunk_restore)
+SYM_CODE_END(__thunk_restore)
diff --git a/arch/x86/vdso/.gitignore b/arch/x86/entry/vdso/.gitignore
index 60274d5746e1..37a6129d597b 100644
--- a/arch/x86/vdso/.gitignore
+++ b/arch/x86/entry/vdso/.gitignore
@@ -1,6 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
vdso.lds
-vdso-syms.lds
-vdso32-syms.lds
+vdsox32.lds
vdso32-syscall-syms.lds
vdso32-sysenter-syms.lds
vdso32-int80-syms.lds
+vdso-image-*.c
+vdso2c
diff --git a/arch/x86/entry/vdso/Makefile b/arch/x86/entry/vdso/Makefile
new file mode 100644
index 000000000000..6a1821bd7d5e
--- /dev/null
+++ b/arch/x86/entry/vdso/Makefile
@@ -0,0 +1,220 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Building vDSO images for x86.
+#
+
+# Include the generic Makefile to check the built vdso.
+include $(srctree)/lib/vdso/Makefile
+
+# Sanitizer runtimes are unavailable and cannot be linked here.
+KASAN_SANITIZE := n
+KMSAN_SANITIZE_vclock_gettime.o := n
+KMSAN_SANITIZE_vgetcpu.o := n
+
+UBSAN_SANITIZE := n
+KCSAN_SANITIZE := n
+OBJECT_FILES_NON_STANDARD := y
+
+# Prevents link failures: __sanitizer_cov_trace_pc() is not linked in.
+KCOV_INSTRUMENT := n
+
+VDSO64-$(CONFIG_X86_64) := y
+VDSOX32-$(CONFIG_X86_X32_ABI) := y
+VDSO32-$(CONFIG_X86_32) := y
+VDSO32-$(CONFIG_IA32_EMULATION) := y
+
+# files to link into the vdso
+vobjs-y := vdso-note.o vclock_gettime.o vgetcpu.o
+vobjs32-y := vdso32/note.o vdso32/system_call.o vdso32/sigreturn.o
+vobjs32-y += vdso32/vclock_gettime.o vdso32/vgetcpu.o
+vobjs-$(CONFIG_X86_SGX) += vsgx.o
+
+# files to link into kernel
+obj-y += vma.o extable.o
+KASAN_SANITIZE_vma.o := y
+UBSAN_SANITIZE_vma.o := y
+KCSAN_SANITIZE_vma.o := y
+OBJECT_FILES_NON_STANDARD_vma.o := n
+OBJECT_FILES_NON_STANDARD_extable.o := n
+
+# vDSO images to build
+vdso_img-$(VDSO64-y) += 64
+vdso_img-$(VDSOX32-y) += x32
+vdso_img-$(VDSO32-y) += 32
+
+obj-$(VDSO32-y) += vdso32-setup.o
+
+vobjs := $(foreach F,$(vobjs-y),$(obj)/$F)
+vobjs32 := $(foreach F,$(vobjs32-y),$(obj)/$F)
+
+$(obj)/vdso.o: $(obj)/vdso.so
+
+targets += vdso.lds $(vobjs-y)
+targets += vdso32/vdso32.lds $(vobjs32-y)
+
+# Build the vDSO image C files and link them in.
+vdso_img_objs := $(vdso_img-y:%=vdso-image-%.o)
+vdso_img_cfiles := $(vdso_img-y:%=vdso-image-%.c)
+vdso_img_sodbg := $(vdso_img-y:%=vdso%.so.dbg)
+obj-y += $(vdso_img_objs)
+targets += $(vdso_img_cfiles)
+targets += $(vdso_img_sodbg) $(vdso_img-y:%=vdso%.so)
+
+CPPFLAGS_vdso.lds += -P -C
+
+VDSO_LDFLAGS_vdso.lds = -m elf_x86_64 -soname linux-vdso.so.1 --no-undefined \
+ -z max-page-size=4096
+
+$(obj)/vdso64.so.dbg: $(obj)/vdso.lds $(vobjs) FORCE
+ $(call if_changed,vdso_and_check)
+
+HOST_EXTRACFLAGS += -I$(srctree)/tools/include -I$(srctree)/include/uapi -I$(srctree)/arch/$(SUBARCH)/include/uapi
+hostprogs += vdso2c
+
+quiet_cmd_vdso2c = VDSO2C $@
+ cmd_vdso2c = $(obj)/vdso2c $< $(<:%.dbg=%) $@
+
+$(obj)/vdso-image-%.c: $(obj)/vdso%.so.dbg $(obj)/vdso%.so $(obj)/vdso2c FORCE
+ $(call if_changed,vdso2c)
+
+#
+# Don't omit frame pointers for ease of userspace debugging, but do
+# optimize sibling calls.
+#
+CFL := $(PROFILING) -mcmodel=small -fPIC -O2 -fasynchronous-unwind-tables -m64 \
+ $(filter -g%,$(KBUILD_CFLAGS)) -fno-stack-protector \
+ -fno-omit-frame-pointer -foptimize-sibling-calls \
+ -DDISABLE_BRANCH_PROFILING -DBUILD_VDSO
+
+ifdef CONFIG_RETPOLINE
+ifneq ($(RETPOLINE_VDSO_CFLAGS),)
+ CFL += $(RETPOLINE_VDSO_CFLAGS)
+endif
+endif
+
+$(vobjs): KBUILD_CFLAGS := $(filter-out $(PADDING_CFLAGS) $(CC_FLAGS_LTO) $(CC_FLAGS_CFI) $(RANDSTRUCT_CFLAGS) $(GCC_PLUGINS_CFLAGS) $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS)) $(CFL)
+$(vobjs): KBUILD_AFLAGS += -DBUILD_VDSO
+
+#
+# vDSO code runs in userspace and -pg doesn't help with profiling anyway.
+#
+CFLAGS_REMOVE_vclock_gettime.o = -pg
+CFLAGS_REMOVE_vdso32/vclock_gettime.o = -pg
+CFLAGS_REMOVE_vgetcpu.o = -pg
+CFLAGS_REMOVE_vdso32/vgetcpu.o = -pg
+CFLAGS_REMOVE_vsgx.o = -pg
+
+#
+# X32 processes use x32 vDSO to access 64bit kernel data.
+#
+# Build x32 vDSO image:
+# 1. Compile x32 vDSO as 64bit.
+# 2. Convert object files to x32.
+# 3. Build x32 VDSO image with x32 objects, which contains 64bit codes
+# so that it can reach 64bit address space with 64bit pointers.
+#
+
+CPPFLAGS_vdsox32.lds = $(CPPFLAGS_vdso.lds)
+VDSO_LDFLAGS_vdsox32.lds = -m elf32_x86_64 -soname linux-vdso.so.1 \
+ -z max-page-size=4096
+
+# x32-rebranded versions
+vobjx32s-y := $(vobjs-y:.o=-x32.o)
+
+# same thing, but in the output directory
+vobjx32s := $(foreach F,$(vobjx32s-y),$(obj)/$F)
+
+# Convert 64bit object file to x32 for x32 vDSO.
+quiet_cmd_x32 = X32 $@
+ cmd_x32 = $(OBJCOPY) -O elf32-x86-64 $< $@
+
+$(obj)/%-x32.o: $(obj)/%.o FORCE
+ $(call if_changed,x32)
+
+targets += vdsox32.lds $(vobjx32s-y)
+
+$(obj)/%.so: OBJCOPYFLAGS := -S --remove-section __ex_table
+$(obj)/%.so: $(obj)/%.so.dbg FORCE
+ $(call if_changed,objcopy)
+
+$(obj)/vdsox32.so.dbg: $(obj)/vdsox32.lds $(vobjx32s) FORCE
+ $(call if_changed,vdso_and_check)
+
+CPPFLAGS_vdso32/vdso32.lds = $(CPPFLAGS_vdso.lds)
+VDSO_LDFLAGS_vdso32.lds = -m elf_i386 -soname linux-gate.so.1
+
+KBUILD_AFLAGS_32 := $(filter-out -m64,$(KBUILD_AFLAGS)) -DBUILD_VDSO
+$(obj)/vdso32.so.dbg: KBUILD_AFLAGS = $(KBUILD_AFLAGS_32)
+$(obj)/vdso32.so.dbg: asflags-$(CONFIG_X86_64) += -m32
+
+KBUILD_CFLAGS_32 := $(filter-out -m64,$(KBUILD_CFLAGS))
+KBUILD_CFLAGS_32 := $(filter-out -mcmodel=kernel,$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out -fno-pic,$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out -mfentry,$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(RANDSTRUCT_CFLAGS),$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(GCC_PLUGINS_CFLAGS),$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(RETPOLINE_CFLAGS),$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(CC_FLAGS_LTO),$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(CC_FLAGS_CFI),$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 := $(filter-out $(PADDING_CFLAGS),$(KBUILD_CFLAGS_32))
+KBUILD_CFLAGS_32 += -m32 -msoft-float -mregparm=0 -fpic
+KBUILD_CFLAGS_32 += -fno-stack-protector
+KBUILD_CFLAGS_32 += $(call cc-option, -foptimize-sibling-calls)
+KBUILD_CFLAGS_32 += -fno-omit-frame-pointer
+KBUILD_CFLAGS_32 += -DDISABLE_BRANCH_PROFILING
+
+ifdef CONFIG_RETPOLINE
+ifneq ($(RETPOLINE_VDSO_CFLAGS),)
+ KBUILD_CFLAGS_32 += $(RETPOLINE_VDSO_CFLAGS)
+endif
+endif
+
+$(obj)/vdso32.so.dbg: KBUILD_CFLAGS = $(KBUILD_CFLAGS_32)
+
+$(obj)/vdso32.so.dbg: $(obj)/vdso32/vdso32.lds $(vobjs32) FORCE
+ $(call if_changed,vdso_and_check)
+
+#
+# The DSO images are built using a special linker script.
+#
+quiet_cmd_vdso = VDSO $@
+ cmd_vdso = $(LD) -o $@ \
+ $(VDSO_LDFLAGS) $(VDSO_LDFLAGS_$(filter %.lds,$(^F))) \
+ -T $(filter %.lds,$^) $(filter %.o,$^) && \
+ sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@'
+
+VDSO_LDFLAGS = -shared --hash-style=both --build-id=sha1 \
+ $(call ld-option, --eh-frame-hdr) -Bsymbolic -z noexecstack
+GCOV_PROFILE := n
+
+quiet_cmd_vdso_and_check = VDSO $@
+ cmd_vdso_and_check = $(cmd_vdso); $(cmd_vdso_check)
+
+#
+# Install the unstripped copies of vdso*.so. If our toolchain supports
+# build-id, install .build-id links as well.
+#
+quiet_cmd_vdso_install = INSTALL $(@:install_%=%)
+define cmd_vdso_install
+ cp $< "$(MODLIB)/vdso/$(@:install_%=%)"; \
+ if readelf -n $< |grep -q 'Build ID'; then \
+ buildid=`readelf -n $< |grep 'Build ID' |sed -e 's/^.*Build ID: \(.*\)$$/\1/'`; \
+ first=`echo $$buildid | cut -b-2`; \
+ last=`echo $$buildid | cut -b3-`; \
+ mkdir -p "$(MODLIB)/vdso/.build-id/$$first"; \
+ ln -sf "../../$(@:install_%=%)" "$(MODLIB)/vdso/.build-id/$$first/$$last.debug"; \
+ fi
+endef
+
+vdso_img_insttargets := $(vdso_img_sodbg:%.dbg=install_%)
+
+$(MODLIB)/vdso: FORCE
+ @mkdir -p $(MODLIB)/vdso
+
+$(vdso_img_insttargets): install_%: $(obj)/%.dbg $(MODLIB)/vdso
+ $(call cmd,vdso_install)
+
+PHONY += vdso_install $(vdso_img_insttargets)
+vdso_install: $(vdso_img_insttargets)
+
+clean-files := vdso32.so vdso32.so.dbg vdso64* vdso-image-*.c vdsox32.so*
diff --git a/arch/x86/vdso/checkundef.sh b/arch/x86/entry/vdso/checkundef.sh
index 7ee90a9b549d..7ee90a9b549d 100755
--- a/arch/x86/vdso/checkundef.sh
+++ b/arch/x86/entry/vdso/checkundef.sh
diff --git a/arch/x86/entry/vdso/extable.c b/arch/x86/entry/vdso/extable.c
new file mode 100644
index 000000000000..afcf5b65beef
--- /dev/null
+++ b/arch/x86/entry/vdso/extable.c
@@ -0,0 +1,46 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/err.h>
+#include <linux/mm.h>
+#include <asm/current.h>
+#include <asm/traps.h>
+#include <asm/vdso.h>
+
+struct vdso_exception_table_entry {
+ int insn, fixup;
+};
+
+bool fixup_vdso_exception(struct pt_regs *regs, int trapnr,
+ unsigned long error_code, unsigned long fault_addr)
+{
+ const struct vdso_image *image = current->mm->context.vdso_image;
+ const struct vdso_exception_table_entry *extable;
+ unsigned int nr_entries, i;
+ unsigned long base;
+
+ /*
+ * Do not attempt to fixup #DB or #BP. It's impossible to identify
+ * whether or not a #DB/#BP originated from within an SGX enclave and
+ * SGX enclaves are currently the only use case for vDSO fixup.
+ */
+ if (trapnr == X86_TRAP_DB || trapnr == X86_TRAP_BP)
+ return false;
+
+ if (!current->mm->context.vdso)
+ return false;
+
+ base = (unsigned long)current->mm->context.vdso + image->extable_base;
+ nr_entries = image->extable_len / (sizeof(*extable));
+ extable = image->extable;
+
+ for (i = 0; i < nr_entries; i++) {
+ if (regs->ip == base + extable[i].insn) {
+ regs->ip = base + extable[i].fixup;
+ regs->di = trapnr;
+ regs->si = error_code;
+ regs->dx = fault_addr;
+ return true;
+ }
+ }
+
+ return false;
+}
diff --git a/arch/x86/entry/vdso/extable.h b/arch/x86/entry/vdso/extable.h
new file mode 100644
index 000000000000..b56f6b012941
--- /dev/null
+++ b/arch/x86/entry/vdso/extable.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_EXTABLE_H
+#define __VDSO_EXTABLE_H
+
+/*
+ * Inject exception fixup for vDSO code. Unlike normal exception fixup,
+ * vDSO uses a dedicated handler the addresses are relative to the overall
+ * exception table, not each individual entry.
+ */
+#ifdef __ASSEMBLY__
+#define _ASM_VDSO_EXTABLE_HANDLE(from, to) \
+ ASM_VDSO_EXTABLE_HANDLE from to
+
+.macro ASM_VDSO_EXTABLE_HANDLE from:req to:req
+ .pushsection __ex_table, "a"
+ .long (\from) - __ex_table
+ .long (\to) - __ex_table
+ .popsection
+.endm
+#else
+#define _ASM_VDSO_EXTABLE_HANDLE(from, to) \
+ ".pushsection __ex_table, \"a\"\n" \
+ ".long (" #from ") - __ex_table\n" \
+ ".long (" #to ") - __ex_table\n" \
+ ".popsection\n"
+#endif
+
+#endif /* __VDSO_EXTABLE_H */
diff --git a/arch/x86/entry/vdso/vclock_gettime.c b/arch/x86/entry/vdso/vclock_gettime.c
new file mode 100644
index 000000000000..7d70935b6758
--- /dev/null
+++ b/arch/x86/entry/vdso/vclock_gettime.c
@@ -0,0 +1,85 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Fast user context implementation of clock_gettime, gettimeofday, and time.
+ *
+ * Copyright 2006 Andi Kleen, SUSE Labs.
+ * Copyright 2019 ARM Limited
+ *
+ * 32 Bit compat layer by Stefani Seibold <stefani@seibold.net>
+ * sponsored by Rohde & Schwarz GmbH & Co. KG Munich/Germany
+ */
+#include <linux/time.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+
+#include "../../../../lib/vdso/gettimeofday.c"
+
+extern int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz);
+extern __kernel_old_time_t __vdso_time(__kernel_old_time_t *t);
+
+int __vdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
+{
+ return __cvdso_gettimeofday(tv, tz);
+}
+
+int gettimeofday(struct __kernel_old_timeval *, struct timezone *)
+ __attribute__((weak, alias("__vdso_gettimeofday")));
+
+__kernel_old_time_t __vdso_time(__kernel_old_time_t *t)
+{
+ return __cvdso_time(t);
+}
+
+__kernel_old_time_t time(__kernel_old_time_t *t) __attribute__((weak, alias("__vdso_time")));
+
+
+#if defined(CONFIG_X86_64) && !defined(BUILD_VDSO32_64)
+/* both 64-bit and x32 use these */
+extern int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts);
+extern int __vdso_clock_getres(clockid_t clock, struct __kernel_timespec *res);
+
+int __vdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts)
+{
+ return __cvdso_clock_gettime(clock, ts);
+}
+
+int clock_gettime(clockid_t, struct __kernel_timespec *)
+ __attribute__((weak, alias("__vdso_clock_gettime")));
+
+int __vdso_clock_getres(clockid_t clock,
+ struct __kernel_timespec *res)
+{
+ return __cvdso_clock_getres(clock, res);
+}
+int clock_getres(clockid_t, struct __kernel_timespec *)
+ __attribute__((weak, alias("__vdso_clock_getres")));
+
+#else
+/* i386 only */
+extern int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts);
+extern int __vdso_clock_getres(clockid_t clock, struct old_timespec32 *res);
+
+int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts)
+{
+ return __cvdso_clock_gettime32(clock, ts);
+}
+
+int clock_gettime(clockid_t, struct old_timespec32 *)
+ __attribute__((weak, alias("__vdso_clock_gettime")));
+
+int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts)
+{
+ return __cvdso_clock_gettime(clock, ts);
+}
+
+int clock_gettime64(clockid_t, struct __kernel_timespec *)
+ __attribute__((weak, alias("__vdso_clock_gettime64")));
+
+int __vdso_clock_getres(clockid_t clock, struct old_timespec32 *res)
+{
+ return __cvdso_clock_getres_time32(clock, res);
+}
+
+int clock_getres(clockid_t, struct old_timespec32 *)
+ __attribute__((weak, alias("__vdso_clock_getres")));
+#endif
diff --git a/arch/x86/entry/vdso/vdso-layout.lds.S b/arch/x86/entry/vdso/vdso-layout.lds.S
new file mode 100644
index 000000000000..bafa73f09e92
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso-layout.lds.S
@@ -0,0 +1,111 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <asm/vdso.h>
+
+/*
+ * Linker script for vDSO. This is an ELF shared object prelinked to
+ * its virtual address, and with only one read-only segment.
+ * This script controls its layout.
+ */
+
+SECTIONS
+{
+ /*
+ * User/kernel shared data is before the vDSO. This may be a little
+ * uglier than putting it after the vDSO, but it avoids issues with
+ * non-allocatable things that dangle past the end of the PT_LOAD
+ * segment.
+ */
+
+ vvar_start = . - 4 * PAGE_SIZE;
+ vvar_page = vvar_start;
+
+ /* Place all vvars at the offsets in asm/vvar.h. */
+#define EMIT_VVAR(name, offset) vvar_ ## name = vvar_page + offset;
+#include <asm/vvar.h>
+#undef EMIT_VVAR
+
+ pvclock_page = vvar_start + PAGE_SIZE;
+ hvclock_page = vvar_start + 2 * PAGE_SIZE;
+ timens_page = vvar_start + 3 * PAGE_SIZE;
+
+#undef _ASM_X86_VVAR_H
+ /* Place all vvars in timens too at the offsets in asm/vvar.h. */
+#define EMIT_VVAR(name, offset) timens_ ## name = timens_page + offset;
+#include <asm/vvar.h>
+#undef EMIT_VVAR
+
+ . = SIZEOF_HEADERS;
+
+ .hash : { *(.hash) } :text
+ .gnu.hash : { *(.gnu.hash) }
+ .dynsym : { *(.dynsym) }
+ .dynstr : { *(.dynstr) }
+ .gnu.version : { *(.gnu.version) }
+ .gnu.version_d : { *(.gnu.version_d) }
+ .gnu.version_r : { *(.gnu.version_r) }
+
+ .dynamic : { *(.dynamic) } :text :dynamic
+
+ .rodata : {
+ *(.rodata*)
+ *(.data*)
+ *(.sdata*)
+ *(.got.plt) *(.got)
+ *(.gnu.linkonce.d.*)
+ *(.bss*)
+ *(.dynbss*)
+ *(.gnu.linkonce.b.*)
+ } :text
+
+ /*
+ * Discard .note.gnu.property sections which are unused and have
+ * different alignment requirement from vDSO note sections.
+ */
+ /DISCARD/ : {
+ *(.note.gnu.property)
+ }
+ .note : { *(.note.*) } :text :note
+
+ .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr
+ .eh_frame : { KEEP (*(.eh_frame)) } :text
+
+
+ /*
+ * Text is well-separated from actual data: there's plenty of
+ * stuff that isn't used at runtime in between.
+ */
+
+ .text : {
+ *(.text*)
+ } :text =0x90909090,
+
+
+
+ .altinstructions : { *(.altinstructions) } :text
+ .altinstr_replacement : { *(.altinstr_replacement) } :text
+
+ __ex_table : { *(__ex_table) } :text
+
+ /DISCARD/ : {
+ *(.discard)
+ *(.discard.*)
+ *(__bug_table)
+ }
+}
+
+/*
+ * Very old versions of ld do not recognize this name token; use the constant.
+ */
+#define PT_GNU_EH_FRAME 0x6474e550
+
+/*
+ * We must supply the ELF program headers explicitly to get just one
+ * PT_LOAD segment, and set the flags explicitly to make segments read-only.
+ */
+PHDRS
+{
+ text PT_LOAD FLAGS(5) FILEHDR PHDRS; /* PF_R|PF_X */
+ dynamic PT_DYNAMIC FLAGS(4); /* PF_R */
+ note PT_NOTE FLAGS(4); /* PF_R */
+ eh_frame_hdr PT_GNU_EH_FRAME;
+}
diff --git a/arch/x86/entry/vdso/vdso-note.S b/arch/x86/entry/vdso/vdso-note.S
new file mode 100644
index 000000000000..79423170118f
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso-note.S
@@ -0,0 +1,15 @@
+/*
+ * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
+ * Here we can supply some information useful to userland.
+ */
+
+#include <linux/build-salt.h>
+#include <linux/uts.h>
+#include <linux/version.h>
+#include <linux/elfnote.h>
+
+ELFNOTE_START(Linux, 0, "a")
+ .long LINUX_VERSION_CODE
+ELFNOTE_END
+
+BUILD_SALT
diff --git a/arch/x86/entry/vdso/vdso.lds.S b/arch/x86/entry/vdso/vdso.lds.S
new file mode 100644
index 000000000000..e8c60ae7a7c8
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso.lds.S
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Linker script for 64-bit vDSO.
+ * We #include the file to define the layout details.
+ *
+ * This file defines the version script giving the user-exported symbols in
+ * the DSO.
+ */
+
+#define BUILD_VDSO64
+
+#include "vdso-layout.lds.S"
+
+/*
+ * This controls what userland symbols we export from the vDSO.
+ */
+VERSION {
+ LINUX_2.6 {
+ global:
+ clock_gettime;
+ __vdso_clock_gettime;
+ gettimeofday;
+ __vdso_gettimeofday;
+ getcpu;
+ __vdso_getcpu;
+ time;
+ __vdso_time;
+ clock_getres;
+ __vdso_clock_getres;
+#ifdef CONFIG_X86_SGX
+ __vdso_sgx_enter_enclave;
+#endif
+ local: *;
+ };
+}
diff --git a/arch/x86/entry/vdso/vdso2c.c b/arch/x86/entry/vdso/vdso2c.c
new file mode 100644
index 000000000000..90d15f2a7205
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso2c.c
@@ -0,0 +1,254 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * vdso2c - A vdso image preparation tool
+ * Copyright (c) 2014 Andy Lutomirski and others
+ *
+ * vdso2c requires stripped and unstripped input. It would be trivial
+ * to fully strip the input in here, but, for reasons described below,
+ * we need to write a section table. Doing this is more or less
+ * equivalent to dropping all non-allocatable sections, but it's
+ * easier to let objcopy handle that instead of doing it ourselves.
+ * If we ever need to do something fancier than what objcopy provides,
+ * it would be straightforward to add here.
+ *
+ * We're keep a section table for a few reasons:
+ *
+ * The Go runtime had a couple of bugs: it would read the section
+ * table to try to figure out how many dynamic symbols there were (it
+ * shouldn't have looked at the section table at all) and, if there
+ * were no SHT_SYNDYM section table entry, it would use an
+ * uninitialized value for the number of symbols. An empty DYNSYM
+ * table would work, but I see no reason not to write a valid one (and
+ * keep full performance for old Go programs). This hack is only
+ * needed on x86_64.
+ *
+ * The bug was introduced on 2012-08-31 by:
+ * https://code.google.com/p/go/source/detail?r=56ea40aac72b
+ * and was fixed on 2014-06-13 by:
+ * https://code.google.com/p/go/source/detail?r=fc1cd5e12595
+ *
+ * Binutils has issues debugging the vDSO: it reads the section table to
+ * find SHT_NOTE; it won't look at PT_NOTE for the in-memory vDSO, which
+ * would break build-id if we removed the section table. Binutils
+ * also requires that shstrndx != 0. See:
+ * https://sourceware.org/bugzilla/show_bug.cgi?id=17064
+ *
+ * elfutils might not look for PT_NOTE if there is a section table at
+ * all. I don't know whether this matters for any practical purpose.
+ *
+ * For simplicity, rather than hacking up a partial section table, we
+ * just write a mostly complete one. We omit non-dynamic symbols,
+ * though, since they're rather large.
+ *
+ * Once binutils gets fixed, we might be able to drop this for all but
+ * the 64-bit vdso, since build-id only works in kernel RPMs, and
+ * systems that update to new enough kernel RPMs will likely update
+ * binutils in sync. build-id has never worked for home-built kernel
+ * RPMs without manual symlinking, and I suspect that no one ever does
+ * that.
+ */
+
+#include <inttypes.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <err.h>
+
+#include <sys/mman.h>
+#include <sys/types.h>
+
+#include <tools/le_byteshift.h>
+
+#include <linux/elf.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+
+const char *outfilename;
+
+/* Symbols that we need in vdso2c. */
+enum {
+ sym_vvar_start,
+ sym_vvar_page,
+ sym_pvclock_page,
+ sym_hvclock_page,
+ sym_timens_page,
+};
+
+const int special_pages[] = {
+ sym_vvar_page,
+ sym_pvclock_page,
+ sym_hvclock_page,
+ sym_timens_page,
+};
+
+struct vdso_sym {
+ const char *name;
+ bool export;
+};
+
+struct vdso_sym required_syms[] = {
+ [sym_vvar_start] = {"vvar_start", true},
+ [sym_vvar_page] = {"vvar_page", true},
+ [sym_pvclock_page] = {"pvclock_page", true},
+ [sym_hvclock_page] = {"hvclock_page", true},
+ [sym_timens_page] = {"timens_page", true},
+ {"VDSO32_NOTE_MASK", true},
+ {"__kernel_vsyscall", true},
+ {"__kernel_sigreturn", true},
+ {"__kernel_rt_sigreturn", true},
+ {"int80_landing_pad", true},
+ {"vdso32_rt_sigreturn_landing_pad", true},
+ {"vdso32_sigreturn_landing_pad", true},
+};
+
+__attribute__((format(printf, 1, 2))) __attribute__((noreturn))
+static void fail(const char *format, ...)
+{
+ va_list ap;
+ va_start(ap, format);
+ fprintf(stderr, "Error: ");
+ vfprintf(stderr, format, ap);
+ if (outfilename)
+ unlink(outfilename);
+ exit(1);
+ va_end(ap);
+}
+
+/*
+ * Evil macros for little-endian reads and writes
+ */
+#define GLE(x, bits, ifnot) \
+ __builtin_choose_expr( \
+ (sizeof(*(x)) == bits/8), \
+ (__typeof__(*(x)))get_unaligned_le##bits(x), ifnot)
+
+extern void bad_get_le(void);
+#define LAST_GLE(x) \
+ __builtin_choose_expr(sizeof(*(x)) == 1, *(x), bad_get_le())
+
+#define GET_LE(x) \
+ GLE(x, 64, GLE(x, 32, GLE(x, 16, LAST_GLE(x))))
+
+#define PLE(x, val, bits, ifnot) \
+ __builtin_choose_expr( \
+ (sizeof(*(x)) == bits/8), \
+ put_unaligned_le##bits((val), (x)), ifnot)
+
+extern void bad_put_le(void);
+#define LAST_PLE(x, val) \
+ __builtin_choose_expr(sizeof(*(x)) == 1, *(x) = (val), bad_put_le())
+
+#define PUT_LE(x, val) \
+ PLE(x, val, 64, PLE(x, val, 32, PLE(x, val, 16, LAST_PLE(x, val))))
+
+
+#define NSYMS ARRAY_SIZE(required_syms)
+
+#define BITSFUNC3(name, bits, suffix) name##bits##suffix
+#define BITSFUNC2(name, bits, suffix) BITSFUNC3(name, bits, suffix)
+#define BITSFUNC(name) BITSFUNC2(name, ELF_BITS, )
+
+#define INT_BITS BITSFUNC2(int, ELF_BITS, _t)
+
+#define ELF_BITS_XFORM2(bits, x) Elf##bits##_##x
+#define ELF_BITS_XFORM(bits, x) ELF_BITS_XFORM2(bits, x)
+#define ELF(x) ELF_BITS_XFORM(ELF_BITS, x)
+
+#define ELF_BITS 64
+#include "vdso2c.h"
+#undef ELF_BITS
+
+#define ELF_BITS 32
+#include "vdso2c.h"
+#undef ELF_BITS
+
+static void go(void *raw_addr, size_t raw_len,
+ void *stripped_addr, size_t stripped_len,
+ FILE *outfile, const char *name)
+{
+ Elf64_Ehdr *hdr = (Elf64_Ehdr *)raw_addr;
+
+ if (hdr->e_ident[EI_CLASS] == ELFCLASS64) {
+ go64(raw_addr, raw_len, stripped_addr, stripped_len,
+ outfile, name);
+ } else if (hdr->e_ident[EI_CLASS] == ELFCLASS32) {
+ go32(raw_addr, raw_len, stripped_addr, stripped_len,
+ outfile, name);
+ } else {
+ fail("unknown ELF class\n");
+ }
+}
+
+static void map_input(const char *name, void **addr, size_t *len, int prot)
+{
+ off_t tmp_len;
+
+ int fd = open(name, O_RDONLY);
+ if (fd == -1)
+ err(1, "open(%s)", name);
+
+ tmp_len = lseek(fd, 0, SEEK_END);
+ if (tmp_len == (off_t)-1)
+ err(1, "lseek");
+ *len = (size_t)tmp_len;
+
+ *addr = mmap(NULL, tmp_len, prot, MAP_PRIVATE, fd, 0);
+ if (*addr == MAP_FAILED)
+ err(1, "mmap");
+
+ close(fd);
+}
+
+int main(int argc, char **argv)
+{
+ size_t raw_len, stripped_len;
+ void *raw_addr, *stripped_addr;
+ FILE *outfile;
+ char *name, *tmp;
+ int namelen;
+
+ if (argc != 4) {
+ printf("Usage: vdso2c RAW_INPUT STRIPPED_INPUT OUTPUT\n");
+ return 1;
+ }
+
+ /*
+ * Figure out the struct name. If we're writing to a .so file,
+ * generate raw output instead.
+ */
+ name = strdup(argv[3]);
+ namelen = strlen(name);
+ if (namelen >= 3 && !strcmp(name + namelen - 3, ".so")) {
+ name = NULL;
+ } else {
+ tmp = strrchr(name, '/');
+ if (tmp)
+ name = tmp + 1;
+ tmp = strchr(name, '.');
+ if (tmp)
+ *tmp = '\0';
+ for (tmp = name; *tmp; tmp++)
+ if (*tmp == '-')
+ *tmp = '_';
+ }
+
+ map_input(argv[1], &raw_addr, &raw_len, PROT_READ);
+ map_input(argv[2], &stripped_addr, &stripped_len, PROT_READ);
+
+ outfilename = argv[3];
+ outfile = fopen(outfilename, "w");
+ if (!outfile)
+ err(1, "fopen(%s)", outfilename);
+
+ go(raw_addr, raw_len, stripped_addr, stripped_len, outfile, name);
+
+ munmap(raw_addr, raw_len);
+ munmap(stripped_addr, stripped_len);
+ fclose(outfile);
+
+ return 0;
+}
diff --git a/arch/x86/entry/vdso/vdso2c.h b/arch/x86/entry/vdso/vdso2c.h
new file mode 100644
index 000000000000..67b3e37576a6
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso2c.h
@@ -0,0 +1,228 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This file is included twice from vdso2c.c. It generates code for 32-bit
+ * and 64-bit vDSOs. We need both for 64-bit builds, since 32-bit vDSOs
+ * are built for 32-bit userspace.
+ */
+
+static void BITSFUNC(copy)(FILE *outfile, const unsigned char *data, size_t len)
+{
+ size_t i;
+
+ for (i = 0; i < len; i++) {
+ if (i % 10 == 0)
+ fprintf(outfile, "\n\t");
+ fprintf(outfile, "0x%02X, ", (int)(data)[i]);
+ }
+}
+
+
+/*
+ * Extract a section from the input data into a standalone blob. Used to
+ * capture kernel-only data that needs to persist indefinitely, e.g. the
+ * exception fixup tables, but only in the kernel, i.e. the section can
+ * be stripped from the final vDSO image.
+ */
+static void BITSFUNC(extract)(const unsigned char *data, size_t data_len,
+ FILE *outfile, ELF(Shdr) *sec, const char *name)
+{
+ unsigned long offset;
+ size_t len;
+
+ offset = (unsigned long)GET_LE(&sec->sh_offset);
+ len = (size_t)GET_LE(&sec->sh_size);
+
+ if (offset + len > data_len)
+ fail("section to extract overruns input data");
+
+ fprintf(outfile, "static const unsigned char %s[%zu] = {", name, len);
+ BITSFUNC(copy)(outfile, data + offset, len);
+ fprintf(outfile, "\n};\n\n");
+}
+
+static void BITSFUNC(go)(void *raw_addr, size_t raw_len,
+ void *stripped_addr, size_t stripped_len,
+ FILE *outfile, const char *image_name)
+{
+ int found_load = 0;
+ unsigned long load_size = -1; /* Work around bogus warning */
+ unsigned long mapping_size;
+ ELF(Ehdr) *hdr = (ELF(Ehdr) *)raw_addr;
+ unsigned long i, syms_nr;
+ ELF(Shdr) *symtab_hdr = NULL, *strtab_hdr, *secstrings_hdr,
+ *alt_sec = NULL, *extable_sec = NULL;
+ ELF(Dyn) *dyn = 0, *dyn_end = 0;
+ const char *secstrings;
+ INT_BITS syms[NSYMS] = {};
+
+ ELF(Phdr) *pt = (ELF(Phdr) *)(raw_addr + GET_LE(&hdr->e_phoff));
+
+ if (GET_LE(&hdr->e_type) != ET_DYN)
+ fail("input is not a shared object\n");
+
+ /* Walk the segment table. */
+ for (i = 0; i < GET_LE(&hdr->e_phnum); i++) {
+ if (GET_LE(&pt[i].p_type) == PT_LOAD) {
+ if (found_load)
+ fail("multiple PT_LOAD segs\n");
+
+ if (GET_LE(&pt[i].p_offset) != 0 ||
+ GET_LE(&pt[i].p_vaddr) != 0)
+ fail("PT_LOAD in wrong place\n");
+
+ if (GET_LE(&pt[i].p_memsz) != GET_LE(&pt[i].p_filesz))
+ fail("cannot handle memsz != filesz\n");
+
+ load_size = GET_LE(&pt[i].p_memsz);
+ found_load = 1;
+ } else if (GET_LE(&pt[i].p_type) == PT_DYNAMIC) {
+ dyn = raw_addr + GET_LE(&pt[i].p_offset);
+ dyn_end = raw_addr + GET_LE(&pt[i].p_offset) +
+ GET_LE(&pt[i].p_memsz);
+ }
+ }
+ if (!found_load)
+ fail("no PT_LOAD seg\n");
+
+ if (stripped_len < load_size)
+ fail("stripped input is too short\n");
+
+ if (!dyn)
+ fail("input has no PT_DYNAMIC section -- your toolchain is buggy\n");
+
+ /* Walk the dynamic table */
+ for (i = 0; dyn + i < dyn_end &&
+ GET_LE(&dyn[i].d_tag) != DT_NULL; i++) {
+ typeof(dyn[i].d_tag) tag = GET_LE(&dyn[i].d_tag);
+ if (tag == DT_REL || tag == DT_RELSZ || tag == DT_RELA ||
+ tag == DT_RELENT || tag == DT_TEXTREL)
+ fail("vdso image contains dynamic relocations\n");
+ }
+
+ /* Walk the section table */
+ secstrings_hdr = raw_addr + GET_LE(&hdr->e_shoff) +
+ GET_LE(&hdr->e_shentsize)*GET_LE(&hdr->e_shstrndx);
+ secstrings = raw_addr + GET_LE(&secstrings_hdr->sh_offset);
+ for (i = 0; i < GET_LE(&hdr->e_shnum); i++) {
+ ELF(Shdr) *sh = raw_addr + GET_LE(&hdr->e_shoff) +
+ GET_LE(&hdr->e_shentsize) * i;
+ if (GET_LE(&sh->sh_type) == SHT_SYMTAB)
+ symtab_hdr = sh;
+
+ if (!strcmp(secstrings + GET_LE(&sh->sh_name),
+ ".altinstructions"))
+ alt_sec = sh;
+ if (!strcmp(secstrings + GET_LE(&sh->sh_name), "__ex_table"))
+ extable_sec = sh;
+ }
+
+ if (!symtab_hdr)
+ fail("no symbol table\n");
+
+ strtab_hdr = raw_addr + GET_LE(&hdr->e_shoff) +
+ GET_LE(&hdr->e_shentsize) * GET_LE(&symtab_hdr->sh_link);
+
+ syms_nr = GET_LE(&symtab_hdr->sh_size) / GET_LE(&symtab_hdr->sh_entsize);
+ /* Walk the symbol table */
+ for (i = 0; i < syms_nr; i++) {
+ unsigned int k;
+ ELF(Sym) *sym = raw_addr + GET_LE(&symtab_hdr->sh_offset) +
+ GET_LE(&symtab_hdr->sh_entsize) * i;
+ const char *sym_name = raw_addr +
+ GET_LE(&strtab_hdr->sh_offset) +
+ GET_LE(&sym->st_name);
+
+ for (k = 0; k < NSYMS; k++) {
+ if (!strcmp(sym_name, required_syms[k].name)) {
+ if (syms[k]) {
+ fail("duplicate symbol %s\n",
+ required_syms[k].name);
+ }
+
+ /*
+ * Careful: we use negative addresses, but
+ * st_value is unsigned, so we rely
+ * on syms[k] being a signed type of the
+ * correct width.
+ */
+ syms[k] = GET_LE(&sym->st_value);
+ }
+ }
+ }
+
+ /* Validate mapping addresses. */
+ for (i = 0; i < sizeof(special_pages) / sizeof(special_pages[0]); i++) {
+ INT_BITS symval = syms[special_pages[i]];
+
+ if (!symval)
+ continue; /* The mapping isn't used; ignore it. */
+
+ if (symval % 4096)
+ fail("%s must be a multiple of 4096\n",
+ required_syms[i].name);
+ if (symval + 4096 < syms[sym_vvar_start])
+ fail("%s underruns vvar_start\n",
+ required_syms[i].name);
+ if (symval + 4096 > 0)
+ fail("%s is on the wrong side of the vdso text\n",
+ required_syms[i].name);
+ }
+ if (syms[sym_vvar_start] % 4096)
+ fail("vvar_begin must be a multiple of 4096\n");
+
+ if (!image_name) {
+ fwrite(stripped_addr, stripped_len, 1, outfile);
+ return;
+ }
+
+ mapping_size = (stripped_len + 4095) / 4096 * 4096;
+
+ fprintf(outfile, "/* AUTOMATICALLY GENERATED -- DO NOT EDIT */\n\n");
+ fprintf(outfile, "#include <linux/linkage.h>\n");
+ fprintf(outfile, "#include <linux/init.h>\n");
+ fprintf(outfile, "#include <asm/page_types.h>\n");
+ fprintf(outfile, "#include <asm/vdso.h>\n");
+ fprintf(outfile, "\n");
+ fprintf(outfile,
+ "static unsigned char raw_data[%lu] __ro_after_init __aligned(PAGE_SIZE) = {",
+ mapping_size);
+ for (i = 0; i < stripped_len; i++) {
+ if (i % 10 == 0)
+ fprintf(outfile, "\n\t");
+ fprintf(outfile, "0x%02X, ",
+ (int)((unsigned char *)stripped_addr)[i]);
+ }
+ fprintf(outfile, "\n};\n\n");
+ if (extable_sec)
+ BITSFUNC(extract)(raw_addr, raw_len, outfile,
+ extable_sec, "extable");
+
+ fprintf(outfile, "const struct vdso_image %s = {\n", image_name);
+ fprintf(outfile, "\t.data = raw_data,\n");
+ fprintf(outfile, "\t.size = %lu,\n", mapping_size);
+ if (alt_sec) {
+ fprintf(outfile, "\t.alt = %lu,\n",
+ (unsigned long)GET_LE(&alt_sec->sh_offset));
+ fprintf(outfile, "\t.alt_len = %lu,\n",
+ (unsigned long)GET_LE(&alt_sec->sh_size));
+ }
+ if (extable_sec) {
+ fprintf(outfile, "\t.extable_base = %lu,\n",
+ (unsigned long)GET_LE(&extable_sec->sh_offset));
+ fprintf(outfile, "\t.extable_len = %lu,\n",
+ (unsigned long)GET_LE(&extable_sec->sh_size));
+ fprintf(outfile, "\t.extable = extable,\n");
+ }
+
+ for (i = 0; i < NSYMS; i++) {
+ if (required_syms[i].export && syms[i])
+ fprintf(outfile, "\t.sym_%s = %" PRIi64 ",\n",
+ required_syms[i].name, (int64_t)syms[i]);
+ }
+ fprintf(outfile, "};\n\n");
+ fprintf(outfile, "static __init int init_%s(void) {\n", image_name);
+ fprintf(outfile, "\treturn init_vdso_image(&%s);\n", image_name);
+ fprintf(outfile, "};\n");
+ fprintf(outfile, "subsys_initcall(init_%s);\n", image_name);
+
+}
diff --git a/arch/x86/entry/vdso/vdso32-setup.c b/arch/x86/entry/vdso/vdso32-setup.c
new file mode 100644
index 000000000000..f3b3cacbcbb0
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso32-setup.c
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * (C) Copyright 2002 Linus Torvalds
+ * Portions based on the vdso-randomization code from exec-shield:
+ * Copyright(C) 2005-2006, Red Hat, Inc., Ingo Molnar
+ *
+ * This file contains the needed initializations to support sysenter.
+ */
+
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/kernel.h>
+#include <linux/mm_types.h>
+#include <linux/elf.h>
+
+#include <asm/processor.h>
+#include <asm/vdso.h>
+
+#ifdef CONFIG_COMPAT_VDSO
+#define VDSO_DEFAULT 0
+#else
+#define VDSO_DEFAULT 1
+#endif
+
+/*
+ * Should the kernel map a VDSO page into processes and pass its
+ * address down to glibc upon exec()?
+ */
+unsigned int __read_mostly vdso32_enabled = VDSO_DEFAULT;
+
+static int __init vdso32_setup(char *s)
+{
+ vdso32_enabled = simple_strtoul(s, NULL, 0);
+
+ if (vdso32_enabled > 1) {
+ pr_warn("vdso32 values other than 0 and 1 are no longer allowed; vdso disabled\n");
+ vdso32_enabled = 0;
+ }
+
+ return 1;
+}
+
+/*
+ * For consistency, the argument vdso32=[012] affects the 32-bit vDSO
+ * behavior on both 64-bit and 32-bit kernels.
+ * On 32-bit kernels, vdso=[012] means the same thing.
+ */
+__setup("vdso32=", vdso32_setup);
+
+#ifdef CONFIG_X86_32
+__setup_param("vdso=", vdso_setup, vdso32_setup, 0);
+#endif
+
+#ifdef CONFIG_X86_64
+
+#ifdef CONFIG_SYSCTL
+/* Register vsyscall32 into the ABI table */
+#include <linux/sysctl.h>
+
+static struct ctl_table abi_table2[] = {
+ {
+ .procname = "vsyscall32",
+ .data = &vdso32_enabled,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE,
+ },
+ {}
+};
+
+static __init int ia32_binfmt_init(void)
+{
+ register_sysctl("abi", abi_table2);
+ return 0;
+}
+__initcall(ia32_binfmt_init);
+#endif /* CONFIG_SYSCTL */
+
+#endif /* CONFIG_X86_64 */
diff --git a/arch/x86/entry/vdso/vdso32/.gitignore b/arch/x86/entry/vdso/vdso32/.gitignore
new file mode 100644
index 000000000000..5167384843b9
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso32/.gitignore
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0-only
+vdso32.lds
diff --git a/arch/x86/entry/vdso/vdso32/fake_32bit_build.h b/arch/x86/entry/vdso/vdso32/fake_32bit_build.h
new file mode 100644
index 000000000000..db1b15f686e3
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso32/fake_32bit_build.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifdef CONFIG_X86_64
+
+/*
+ * in case of a 32 bit VDSO for a 64 bit kernel fake a 32 bit kernel
+ * configuration
+ */
+#undef CONFIG_64BIT
+#undef CONFIG_X86_64
+#undef CONFIG_COMPAT
+#undef CONFIG_PGTABLE_LEVELS
+#undef CONFIG_ILLEGAL_POINTER_VALUE
+#undef CONFIG_SPARSEMEM_VMEMMAP
+#undef CONFIG_NR_CPUS
+#undef CONFIG_PARAVIRT_XXL
+
+#define CONFIG_X86_32 1
+#define CONFIG_PGTABLE_LEVELS 2
+#define CONFIG_PAGE_OFFSET 0
+#define CONFIG_ILLEGAL_POINTER_VALUE 0
+#define CONFIG_NR_CPUS 1
+
+#define BUILD_VDSO32_64
+
+#endif
diff --git a/arch/x86/entry/vdso/vdso32/note.S b/arch/x86/entry/vdso/vdso32/note.S
new file mode 100644
index 000000000000..2cbd39939dc6
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso32/note.S
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This supplies .note.* sections to go into the PT_NOTE inside the vDSO text.
+ * Here we can supply some information useful to userland.
+ */
+
+#include <linux/build-salt.h>
+#include <linux/version.h>
+#include <linux/elfnote.h>
+
+/* Ideally this would use UTS_NAME, but using a quoted string here
+ doesn't work. Remember to change this when changing the
+ kernel's name. */
+ELFNOTE_START(Linux, 0, "a")
+ .long LINUX_VERSION_CODE
+ELFNOTE_END
+
+BUILD_SALT
diff --git a/arch/x86/vdso/vdso32/sigreturn.S b/arch/x86/entry/vdso/vdso32/sigreturn.S
index 31776d0efc8c..1bd068f72d4c 100644
--- a/arch/x86/vdso/vdso32/sigreturn.S
+++ b/arch/x86/entry/vdso/vdso32/sigreturn.S
@@ -1,11 +1,4 @@
-/*
- * Common code for the sigreturn entry points in vDSO images.
- * So far this code is the same for both int80 and sysenter versions.
- * This file is #include'd by int80.S et al to define them first thing.
- * The kernel assumes that the addresses of these routines are constant
- * for all vDSO implementations.
- */
-
+/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/linkage.h>
#include <asm/unistd_32.h>
#include <asm/asm-offsets.h>
@@ -17,6 +10,7 @@
.text
.globl __kernel_sigreturn
.type __kernel_sigreturn,@function
+ nop /* this guy is needed for .LSTARTFDEDLSI1 below (watch for HACK) */
ALIGN
__kernel_sigreturn:
.LSTART_sigreturn:
@@ -24,6 +18,7 @@ __kernel_sigreturn:
movl $__NR_sigreturn, %eax
SYSCALL_ENTER_KERNEL
.LEND_sigreturn:
+SYM_INNER_LABEL(vdso32_sigreturn_landing_pad, SYM_L_GLOBAL)
nop
.size __kernel_sigreturn,.-.LSTART_sigreturn
@@ -35,6 +30,7 @@ __kernel_rt_sigreturn:
movl $__NR_rt_sigreturn, %eax
SYSCALL_ENTER_KERNEL
.LEND_rt_sigreturn:
+SYM_INNER_LABEL(vdso32_rt_sigreturn_landing_pad, SYM_L_GLOBAL)
nop
.size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn
.previous
diff --git a/arch/x86/entry/vdso/vdso32/system_call.S b/arch/x86/entry/vdso/vdso32/system_call.S
new file mode 100644
index 000000000000..d33c6513fd2c
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso32/system_call.S
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AT_SYSINFO entry point
+*/
+
+#include <linux/linkage.h>
+#include <asm/dwarf2.h>
+#include <asm/cpufeatures.h>
+#include <asm/alternative.h>
+
+ .text
+ .globl __kernel_vsyscall
+ .type __kernel_vsyscall,@function
+ ALIGN
+__kernel_vsyscall:
+ CFI_STARTPROC
+ /*
+ * Reshuffle regs so that all of any of the entry instructions
+ * will preserve enough state.
+ *
+ * A really nice entry sequence would be:
+ * pushl %edx
+ * pushl %ecx
+ * movl %esp, %ecx
+ *
+ * Unfortunately, naughty Android versions between July and December
+ * 2015 actually hardcode the traditional Linux SYSENTER entry
+ * sequence. That is severely broken for a number of reasons (ask
+ * anyone with an AMD CPU, for example). Nonetheless, we try to keep
+ * it working approximately as well as it ever worked.
+ *
+ * This link may elucidate some of the history:
+ * https://android-review.googlesource.com/#/q/Iac3295376d61ef83e713ac9b528f3b50aa780cd7
+ * personally, I find it hard to understand what's going on there.
+ *
+ * Note to future user developers: DO NOT USE SYSENTER IN YOUR CODE.
+ * Execute an indirect call to the address in the AT_SYSINFO auxv
+ * entry. That is the ONLY correct way to make a fast 32-bit system
+ * call on Linux. (Open-coding int $0x80 is also fine, but it's
+ * slow.)
+ */
+ pushl %ecx
+ CFI_ADJUST_CFA_OFFSET 4
+ CFI_REL_OFFSET ecx, 0
+ pushl %edx
+ CFI_ADJUST_CFA_OFFSET 4
+ CFI_REL_OFFSET edx, 0
+ pushl %ebp
+ CFI_ADJUST_CFA_OFFSET 4
+ CFI_REL_OFFSET ebp, 0
+
+ #define SYSENTER_SEQUENCE "movl %esp, %ebp; sysenter"
+ #define SYSCALL_SEQUENCE "movl %ecx, %ebp; syscall"
+
+#ifdef CONFIG_X86_64
+ /* If SYSENTER (Intel) or SYSCALL32 (AMD) is available, use it. */
+ ALTERNATIVE_2 "", SYSENTER_SEQUENCE, X86_FEATURE_SYSENTER32, \
+ SYSCALL_SEQUENCE, X86_FEATURE_SYSCALL32
+#else
+ ALTERNATIVE "", SYSENTER_SEQUENCE, X86_FEATURE_SEP
+#endif
+
+ /* Enter using int $0x80 */
+ int $0x80
+SYM_INNER_LABEL(int80_landing_pad, SYM_L_GLOBAL)
+
+ /*
+ * Restore EDX and ECX in case they were clobbered. EBP is not
+ * clobbered (the kernel restores it), but it's cleaner and
+ * probably faster to pop it than to adjust ESP using addl.
+ */
+ popl %ebp
+ CFI_RESTORE ebp
+ CFI_ADJUST_CFA_OFFSET -4
+ popl %edx
+ CFI_RESTORE edx
+ CFI_ADJUST_CFA_OFFSET -4
+ popl %ecx
+ CFI_RESTORE ecx
+ CFI_ADJUST_CFA_OFFSET -4
+ RET
+ CFI_ENDPROC
+
+ .size __kernel_vsyscall,.-__kernel_vsyscall
+ .previous
diff --git a/arch/x86/entry/vdso/vdso32/vclock_gettime.c b/arch/x86/entry/vdso/vdso32/vclock_gettime.c
new file mode 100644
index 000000000000..86981decfea8
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso32/vclock_gettime.c
@@ -0,0 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
+#define BUILD_VDSO32
+#include "fake_32bit_build.h"
+#include "../vclock_gettime.c"
diff --git a/arch/x86/vdso/vdso32/vdso32.lds.S b/arch/x86/entry/vdso/vdso32/vdso32.lds.S
index 976124bb5f92..8a3be07006bb 100644
--- a/arch/x86/vdso/vdso32/vdso32.lds.S
+++ b/arch/x86/entry/vdso/vdso32/vdso32.lds.S
@@ -1,14 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Linker script for 32-bit vDSO.
* We #include the file to define the layout details.
- * Here we only choose the prelinked virtual address.
*
* This file defines the version script giving the user-exported symbols in
- * the DSO. We can define local symbols here called VDSO* to make their
- * values visible using the asm-x86/vdso.h macros from the kernel proper.
+ * the DSO.
*/
-#define VDSO_PRELINK 0
+#include <asm/page.h>
+
+#define BUILD_VDSO32
+
#include "../vdso-layout.lds.S"
/* The ELF entry point can be used to set the AT_SYSINFO value. */
@@ -19,6 +21,16 @@ ENTRY(__kernel_vsyscall);
*/
VERSION
{
+ LINUX_2.6 {
+ global:
+ __vdso_clock_gettime;
+ __vdso_gettimeofday;
+ __vdso_time;
+ __vdso_clock_getres;
+ __vdso_clock_gettime64;
+ __vdso_getcpu;
+ };
+
LINUX_2.5 {
global:
__kernel_vsyscall;
@@ -27,11 +39,3 @@ VERSION
local: *;
};
}
-
-/*
- * Symbols we define here called VDSO* get their values into vdso32-syms.h.
- */
-VDSO32_PRELINK = VDSO_PRELINK;
-VDSO32_vsyscall = __kernel_vsyscall;
-VDSO32_sigreturn = __kernel_sigreturn;
-VDSO32_rt_sigreturn = __kernel_rt_sigreturn;
diff --git a/arch/x86/entry/vdso/vdso32/vgetcpu.c b/arch/x86/entry/vdso/vdso32/vgetcpu.c
new file mode 100644
index 000000000000..3a9791f5e998
--- /dev/null
+++ b/arch/x86/entry/vdso/vdso32/vgetcpu.c
@@ -0,0 +1,3 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "fake_32bit_build.h"
+#include "../vgetcpu.c"
diff --git a/arch/x86/entry/vdso/vdsox32.lds.S b/arch/x86/entry/vdso/vdsox32.lds.S
new file mode 100644
index 000000000000..16a8050a4fb6
--- /dev/null
+++ b/arch/x86/entry/vdso/vdsox32.lds.S
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Linker script for x32 vDSO.
+ * We #include the file to define the layout details.
+ *
+ * This file defines the version script giving the user-exported symbols in
+ * the DSO.
+ */
+
+#define BUILD_VDSOX32
+
+#include "vdso-layout.lds.S"
+
+/*
+ * This controls what userland symbols we export from the vDSO.
+ */
+VERSION {
+ LINUX_2.6 {
+ global:
+ __vdso_clock_gettime;
+ __vdso_gettimeofday;
+ __vdso_getcpu;
+ __vdso_time;
+ __vdso_clock_getres;
+ local: *;
+ };
+}
diff --git a/arch/x86/entry/vdso/vgetcpu.c b/arch/x86/entry/vdso/vgetcpu.c
new file mode 100644
index 000000000000..0a9007c24056
--- /dev/null
+++ b/arch/x86/entry/vdso/vgetcpu.c
@@ -0,0 +1,21 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2006 Andi Kleen, SUSE Labs.
+ *
+ * Fast user context implementation of getcpu()
+ */
+
+#include <linux/kernel.h>
+#include <linux/getcpu.h>
+#include <asm/segment.h>
+
+notrace long
+__vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused)
+{
+ vdso_read_cpunode(cpu, node);
+
+ return 0;
+}
+
+long getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *tcache)
+ __attribute__((weak, alias("__vdso_getcpu")));
diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c
new file mode 100644
index 000000000000..11a5c68d1218
--- /dev/null
+++ b/arch/x86/entry/vdso/vma.c
@@ -0,0 +1,422 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright 2007 Andi Kleen, SUSE Labs.
+ *
+ * This contains most of the x86 vDSO kernel-side code.
+ */
+#include <linux/mm.h>
+#include <linux/err.h>
+#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/random.h>
+#include <linux/elf.h>
+#include <linux/cpu.h>
+#include <linux/ptrace.h>
+#include <linux/time_namespace.h>
+
+#include <asm/pvclock.h>
+#include <asm/vgtod.h>
+#include <asm/proto.h>
+#include <asm/vdso.h>
+#include <asm/vvar.h>
+#include <asm/tlb.h>
+#include <asm/page.h>
+#include <asm/desc.h>
+#include <asm/cpufeature.h>
+#include <clocksource/hyperv_timer.h>
+
+#undef _ASM_X86_VVAR_H
+#define EMIT_VVAR(name, offset) \
+ const size_t name ## _offset = offset;
+#include <asm/vvar.h>
+
+struct vdso_data *arch_get_vdso_data(void *vvar_page)
+{
+ return (struct vdso_data *)(vvar_page + _vdso_data_offset);
+}
+#undef EMIT_VVAR
+
+unsigned int vclocks_used __read_mostly;
+
+#if defined(CONFIG_X86_64)
+unsigned int __read_mostly vdso64_enabled = 1;
+#endif
+
+int __init init_vdso_image(const struct vdso_image *image)
+{
+ BUILD_BUG_ON(VDSO_CLOCKMODE_MAX >= 32);
+ BUG_ON(image->size % PAGE_SIZE != 0);
+
+ apply_alternatives((struct alt_instr *)(image->data + image->alt),
+ (struct alt_instr *)(image->data + image->alt +
+ image->alt_len));
+
+ return 0;
+}
+
+static const struct vm_special_mapping vvar_mapping;
+struct linux_binprm;
+
+static vm_fault_t vdso_fault(const struct vm_special_mapping *sm,
+ struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ const struct vdso_image *image = vma->vm_mm->context.vdso_image;
+
+ if (!image || (vmf->pgoff << PAGE_SHIFT) >= image->size)
+ return VM_FAULT_SIGBUS;
+
+ vmf->page = virt_to_page(image->data + (vmf->pgoff << PAGE_SHIFT));
+ get_page(vmf->page);
+ return 0;
+}
+
+static void vdso_fix_landing(const struct vdso_image *image,
+ struct vm_area_struct *new_vma)
+{
+#if defined CONFIG_X86_32 || defined CONFIG_IA32_EMULATION
+ if (in_ia32_syscall() && image == &vdso_image_32) {
+ struct pt_regs *regs = current_pt_regs();
+ unsigned long vdso_land = image->sym_int80_landing_pad;
+ unsigned long old_land_addr = vdso_land +
+ (unsigned long)current->mm->context.vdso;
+
+ /* Fixing userspace landing - look at do_fast_syscall_32 */
+ if (regs->ip == old_land_addr)
+ regs->ip = new_vma->vm_start + vdso_land;
+ }
+#endif
+}
+
+static int vdso_mremap(const struct vm_special_mapping *sm,
+ struct vm_area_struct *new_vma)
+{
+ const struct vdso_image *image = current->mm->context.vdso_image;
+
+ vdso_fix_landing(image, new_vma);
+ current->mm->context.vdso = (void __user *)new_vma->vm_start;
+
+ return 0;
+}
+
+#ifdef CONFIG_TIME_NS
+/*
+ * The vvar page layout depends on whether a task belongs to the root or
+ * non-root time namespace. Whenever a task changes its namespace, the VVAR
+ * page tables are cleared and then they will re-faulted with a
+ * corresponding layout.
+ * See also the comment near timens_setup_vdso_data() for details.
+ */
+int vdso_join_timens(struct task_struct *task, struct time_namespace *ns)
+{
+ struct mm_struct *mm = task->mm;
+ struct vm_area_struct *vma;
+ VMA_ITERATOR(vmi, mm, 0);
+
+ mmap_read_lock(mm);
+ for_each_vma(vmi, vma) {
+ if (vma_is_special_mapping(vma, &vvar_mapping))
+ zap_vma_pages(vma);
+ }
+ mmap_read_unlock(mm);
+
+ return 0;
+}
+#endif
+
+static vm_fault_t vvar_fault(const struct vm_special_mapping *sm,
+ struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+ const struct vdso_image *image = vma->vm_mm->context.vdso_image;
+ unsigned long pfn;
+ long sym_offset;
+
+ if (!image)
+ return VM_FAULT_SIGBUS;
+
+ sym_offset = (long)(vmf->pgoff << PAGE_SHIFT) +
+ image->sym_vvar_start;
+
+ /*
+ * Sanity check: a symbol offset of zero means that the page
+ * does not exist for this vdso image, not that the page is at
+ * offset zero relative to the text mapping. This should be
+ * impossible here, because sym_offset should only be zero for
+ * the page past the end of the vvar mapping.
+ */
+ if (sym_offset == 0)
+ return VM_FAULT_SIGBUS;
+
+ if (sym_offset == image->sym_vvar_page) {
+ struct page *timens_page = find_timens_vvar_page(vma);
+
+ pfn = __pa_symbol(&__vvar_page) >> PAGE_SHIFT;
+
+ /*
+ * If a task belongs to a time namespace then a namespace
+ * specific VVAR is mapped with the sym_vvar_page offset and
+ * the real VVAR page is mapped with the sym_timens_page
+ * offset.
+ * See also the comment near timens_setup_vdso_data().
+ */
+ if (timens_page) {
+ unsigned long addr;
+ vm_fault_t err;
+
+ /*
+ * Optimization: inside time namespace pre-fault
+ * VVAR page too. As on timens page there are only
+ * offsets for clocks on VVAR, it'll be faulted
+ * shortly by VDSO code.
+ */
+ addr = vmf->address + (image->sym_timens_page - sym_offset);
+ err = vmf_insert_pfn(vma, addr, pfn);
+ if (unlikely(err & VM_FAULT_ERROR))
+ return err;
+
+ pfn = page_to_pfn(timens_page);
+ }
+
+ return vmf_insert_pfn(vma, vmf->address, pfn);
+ } else if (sym_offset == image->sym_pvclock_page) {
+ struct pvclock_vsyscall_time_info *pvti =
+ pvclock_get_pvti_cpu0_va();
+ if (pvti && vclock_was_used(VDSO_CLOCKMODE_PVCLOCK)) {
+ return vmf_insert_pfn_prot(vma, vmf->address,
+ __pa(pvti) >> PAGE_SHIFT,
+ pgprot_decrypted(vma->vm_page_prot));
+ }
+ } else if (sym_offset == image->sym_hvclock_page) {
+ pfn = hv_get_tsc_pfn();
+
+ if (pfn && vclock_was_used(VDSO_CLOCKMODE_HVCLOCK))
+ return vmf_insert_pfn(vma, vmf->address, pfn);
+ } else if (sym_offset == image->sym_timens_page) {
+ struct page *timens_page = find_timens_vvar_page(vma);
+
+ if (!timens_page)
+ return VM_FAULT_SIGBUS;
+
+ pfn = __pa_symbol(&__vvar_page) >> PAGE_SHIFT;
+ return vmf_insert_pfn(vma, vmf->address, pfn);
+ }
+
+ return VM_FAULT_SIGBUS;
+}
+
+static const struct vm_special_mapping vdso_mapping = {
+ .name = "[vdso]",
+ .fault = vdso_fault,
+ .mremap = vdso_mremap,
+};
+static const struct vm_special_mapping vvar_mapping = {
+ .name = "[vvar]",
+ .fault = vvar_fault,
+};
+
+/*
+ * Add vdso and vvar mappings to current process.
+ * @image - blob to map
+ * @addr - request a specific address (zero to map at free addr)
+ */
+static int map_vdso(const struct vdso_image *image, unsigned long addr)
+{
+ struct mm_struct *mm = current->mm;
+ struct vm_area_struct *vma;
+ unsigned long text_start;
+ int ret = 0;
+
+ if (mmap_write_lock_killable(mm))
+ return -EINTR;
+
+ addr = get_unmapped_area(NULL, addr,
+ image->size - image->sym_vvar_start, 0, 0);
+ if (IS_ERR_VALUE(addr)) {
+ ret = addr;
+ goto up_fail;
+ }
+
+ text_start = addr - image->sym_vvar_start;
+
+ /*
+ * MAYWRITE to allow gdb to COW and set breakpoints
+ */
+ vma = _install_special_mapping(mm,
+ text_start,
+ image->size,
+ VM_READ|VM_EXEC|
+ VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC,
+ &vdso_mapping);
+
+ if (IS_ERR(vma)) {
+ ret = PTR_ERR(vma);
+ goto up_fail;
+ }
+
+ vma = _install_special_mapping(mm,
+ addr,
+ -image->sym_vvar_start,
+ VM_READ|VM_MAYREAD|VM_IO|VM_DONTDUMP|
+ VM_PFNMAP,
+ &vvar_mapping);
+
+ if (IS_ERR(vma)) {
+ ret = PTR_ERR(vma);
+ do_munmap(mm, text_start, image->size, NULL);
+ } else {
+ current->mm->context.vdso = (void __user *)text_start;
+ current->mm->context.vdso_image = image;
+ }
+
+up_fail:
+ mmap_write_unlock(mm);
+ return ret;
+}
+
+#ifdef CONFIG_X86_64
+/*
+ * Put the vdso above the (randomized) stack with another randomized
+ * offset. This way there is no hole in the middle of address space.
+ * To save memory make sure it is still in the same PTE as the stack
+ * top. This doesn't give that many random bits.
+ *
+ * Note that this algorithm is imperfect: the distribution of the vdso
+ * start address within a PMD is biased toward the end.
+ *
+ * Only used for the 64-bit and x32 vdsos.
+ */
+static unsigned long vdso_addr(unsigned long start, unsigned len)
+{
+ unsigned long addr, end;
+ unsigned offset;
+
+ /*
+ * Round up the start address. It can start out unaligned as a result
+ * of stack start randomization.
+ */
+ start = PAGE_ALIGN(start);
+
+ /* Round the lowest possible end address up to a PMD boundary. */
+ end = (start + len + PMD_SIZE - 1) & PMD_MASK;
+ if (end >= TASK_SIZE_MAX)
+ end = TASK_SIZE_MAX;
+ end -= len;
+
+ if (end > start) {
+ offset = get_random_u32_below(((end - start) >> PAGE_SHIFT) + 1);
+ addr = start + (offset << PAGE_SHIFT);
+ } else {
+ addr = start;
+ }
+
+ /*
+ * Forcibly align the final address in case we have a hardware
+ * issue that requires alignment for performance reasons.
+ */
+ addr = align_vdso_addr(addr);
+
+ return addr;
+}
+
+static int map_vdso_randomized(const struct vdso_image *image)
+{
+ unsigned long addr = vdso_addr(current->mm->start_stack, image->size-image->sym_vvar_start);
+
+ return map_vdso(image, addr);
+}
+#endif
+
+int map_vdso_once(const struct vdso_image *image, unsigned long addr)
+{
+ struct mm_struct *mm = current->mm;
+ struct vm_area_struct *vma;
+ VMA_ITERATOR(vmi, mm, 0);
+
+ mmap_write_lock(mm);
+ /*
+ * Check if we have already mapped vdso blob - fail to prevent
+ * abusing from userspace install_special_mapping, which may
+ * not do accounting and rlimit right.
+ * We could search vma near context.vdso, but it's a slowpath,
+ * so let's explicitly check all VMAs to be completely sure.
+ */
+ for_each_vma(vmi, vma) {
+ if (vma_is_special_mapping(vma, &vdso_mapping) ||
+ vma_is_special_mapping(vma, &vvar_mapping)) {
+ mmap_write_unlock(mm);
+ return -EEXIST;
+ }
+ }
+ mmap_write_unlock(mm);
+
+ return map_vdso(image, addr);
+}
+
+#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
+static int load_vdso32(void)
+{
+ if (vdso32_enabled != 1) /* Other values all mean "disabled" */
+ return 0;
+
+ return map_vdso(&vdso_image_32, 0);
+}
+#endif
+
+#ifdef CONFIG_X86_64
+int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+{
+ if (!vdso64_enabled)
+ return 0;
+
+ return map_vdso_randomized(&vdso_image_64);
+}
+
+#ifdef CONFIG_COMPAT
+int compat_arch_setup_additional_pages(struct linux_binprm *bprm,
+ int uses_interp, bool x32)
+{
+#ifdef CONFIG_X86_X32_ABI
+ if (x32) {
+ if (!vdso64_enabled)
+ return 0;
+ return map_vdso_randomized(&vdso_image_x32);
+ }
+#endif
+#ifdef CONFIG_IA32_EMULATION
+ return load_vdso32();
+#else
+ return 0;
+#endif
+}
+#endif
+#else
+int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp)
+{
+ return load_vdso32();
+}
+#endif
+
+bool arch_syscall_is_vdso_sigreturn(struct pt_regs *regs)
+{
+#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
+ const struct vdso_image *image = current->mm->context.vdso_image;
+ unsigned long vdso = (unsigned long) current->mm->context.vdso;
+
+ if (in_ia32_syscall() && image == &vdso_image_32) {
+ if (regs->ip == vdso + image->sym_vdso32_sigreturn_landing_pad ||
+ regs->ip == vdso + image->sym_vdso32_rt_sigreturn_landing_pad)
+ return true;
+ }
+#endif
+ return false;
+}
+
+#ifdef CONFIG_X86_64
+static __init int vdso_setup(char *s)
+{
+ vdso64_enabled = simple_strtoul(s, NULL, 0);
+ return 1;
+}
+__setup("vdso=", vdso_setup);
+#endif /* CONFIG_X86_64 */
diff --git a/arch/x86/entry/vdso/vsgx.S b/arch/x86/entry/vdso/vsgx.S
new file mode 100644
index 000000000000..d77d278ee9dd
--- /dev/null
+++ b/arch/x86/entry/vdso/vsgx.S
@@ -0,0 +1,151 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include <linux/linkage.h>
+#include <asm/export.h>
+#include <asm/errno.h>
+#include <asm/enclu.h>
+
+#include "extable.h"
+
+/* Relative to %rbp. */
+#define SGX_ENCLAVE_OFFSET_OF_RUN 16
+
+/* The offsets relative to struct sgx_enclave_run. */
+#define SGX_ENCLAVE_RUN_TCS 0
+#define SGX_ENCLAVE_RUN_LEAF 8
+#define SGX_ENCLAVE_RUN_EXCEPTION_VECTOR 12
+#define SGX_ENCLAVE_RUN_EXCEPTION_ERROR_CODE 14
+#define SGX_ENCLAVE_RUN_EXCEPTION_ADDR 16
+#define SGX_ENCLAVE_RUN_USER_HANDLER 24
+#define SGX_ENCLAVE_RUN_USER_DATA 32 /* not used */
+#define SGX_ENCLAVE_RUN_RESERVED_START 40
+#define SGX_ENCLAVE_RUN_RESERVED_END 256
+
+.code64
+.section .text, "ax"
+
+SYM_FUNC_START(__vdso_sgx_enter_enclave)
+ /* Prolog */
+ .cfi_startproc
+ push %rbp
+ .cfi_adjust_cfa_offset 8
+ .cfi_rel_offset %rbp, 0
+ mov %rsp, %rbp
+ .cfi_def_cfa_register %rbp
+ push %rbx
+ .cfi_rel_offset %rbx, -8
+
+ mov %ecx, %eax
+.Lenter_enclave:
+ /* EENTER <= function <= ERESUME */
+ cmp $EENTER, %eax
+ jb .Linvalid_input
+ cmp $ERESUME, %eax
+ ja .Linvalid_input
+
+ mov SGX_ENCLAVE_OFFSET_OF_RUN(%rbp), %rcx
+
+ /* Validate that the reserved area contains only zeros. */
+ mov $SGX_ENCLAVE_RUN_RESERVED_START, %rbx
+1:
+ cmpq $0, (%rcx, %rbx)
+ jne .Linvalid_input
+ add $8, %rbx
+ cmpq $SGX_ENCLAVE_RUN_RESERVED_END, %rbx
+ jne 1b
+
+ /* Load TCS and AEP */
+ mov SGX_ENCLAVE_RUN_TCS(%rcx), %rbx
+ lea .Lasync_exit_pointer(%rip), %rcx
+
+ /* Single ENCLU serving as both EENTER and AEP (ERESUME) */
+.Lasync_exit_pointer:
+.Lenclu_eenter_eresume:
+ enclu
+
+ /* EEXIT jumps here unless the enclave is doing something fancy. */
+ mov SGX_ENCLAVE_OFFSET_OF_RUN(%rbp), %rbx
+
+ /* Set exit_reason. */
+ movl $EEXIT, SGX_ENCLAVE_RUN_LEAF(%rbx)
+
+ /* Invoke userspace's exit handler if one was provided. */
+.Lhandle_exit:
+ cmpq $0, SGX_ENCLAVE_RUN_USER_HANDLER(%rbx)
+ jne .Linvoke_userspace_handler
+
+ /* Success, in the sense that ENCLU was attempted. */
+ xor %eax, %eax
+
+.Lout:
+ pop %rbx
+ leave
+ .cfi_def_cfa %rsp, 8
+ RET
+
+ /* The out-of-line code runs with the pre-leave stack frame. */
+ .cfi_def_cfa %rbp, 16
+
+.Linvalid_input:
+ mov $(-EINVAL), %eax
+ jmp .Lout
+
+.Lhandle_exception:
+ mov SGX_ENCLAVE_OFFSET_OF_RUN(%rbp), %rbx
+
+ /* Set the exception info. */
+ mov %eax, (SGX_ENCLAVE_RUN_LEAF)(%rbx)
+ mov %di, (SGX_ENCLAVE_RUN_EXCEPTION_VECTOR)(%rbx)
+ mov %si, (SGX_ENCLAVE_RUN_EXCEPTION_ERROR_CODE)(%rbx)
+ mov %rdx, (SGX_ENCLAVE_RUN_EXCEPTION_ADDR)(%rbx)
+ jmp .Lhandle_exit
+
+.Linvoke_userspace_handler:
+ /* Pass the untrusted RSP (at exit) to the callback via %rcx. */
+ mov %rsp, %rcx
+
+ /* Save struct sgx_enclave_exception %rbx is about to be clobbered. */
+ mov %rbx, %rax
+
+ /* Save the untrusted RSP offset in %rbx (non-volatile register). */
+ mov %rsp, %rbx
+ and $0xf, %rbx
+
+ /*
+ * Align stack per x86_64 ABI. Note, %rsp needs to be 16-byte aligned
+ * _after_ pushing the parameters on the stack, hence the bonus push.
+ */
+ and $-0x10, %rsp
+ push %rax
+
+ /* Push struct sgx_enclave_exception as a param to the callback. */
+ push %rax
+
+ /* Clear RFLAGS.DF per x86_64 ABI */
+ cld
+
+ /*
+ * Load the callback pointer to %rax and lfence for LVI (load value
+ * injection) protection before making the call.
+ */
+ mov SGX_ENCLAVE_RUN_USER_HANDLER(%rax), %rax
+ lfence
+ call *%rax
+
+ /* Undo the post-exit %rsp adjustment. */
+ lea 0x10(%rsp, %rbx), %rsp
+
+ /*
+ * If the return from callback is zero or negative, return immediately,
+ * else re-execute ENCLU with the positive return value interpreted as
+ * the requested ENCLU function.
+ */
+ cmp $0, %eax
+ jle .Lout
+ jmp .Lenter_enclave
+
+ .cfi_endproc
+
+_ASM_VDSO_EXTABLE_HANDLE(.Lenclu_eenter_eresume, .Lhandle_exception)
+
+SYM_FUNC_END(__vdso_sgx_enter_enclave)
diff --git a/arch/x86/entry/vsyscall/Makefile b/arch/x86/entry/vsyscall/Makefile
new file mode 100644
index 000000000000..93c1b3e949a7
--- /dev/null
+++ b/arch/x86/entry/vsyscall/Makefile
@@ -0,0 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-only
+#
+# Makefile for the x86 low level vsyscall code
+#
+obj-$(CONFIG_X86_VSYSCALL_EMULATION) += vsyscall_64.o vsyscall_emu_64.o
+
diff --git a/arch/x86/entry/vsyscall/vsyscall_64.c b/arch/x86/entry/vsyscall/vsyscall_64.c
new file mode 100644
index 000000000000..e0ca8120aea8
--- /dev/null
+++ b/arch/x86/entry/vsyscall/vsyscall_64.c
@@ -0,0 +1,398 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2012-2014 Andy Lutomirski <luto@amacapital.net>
+ *
+ * Based on the original implementation which is:
+ * Copyright (C) 2001 Andrea Arcangeli <andrea@suse.de> SuSE
+ * Copyright 2003 Andi Kleen, SuSE Labs.
+ *
+ * Parts of the original code have been moved to arch/x86/vdso/vma.c
+ *
+ * This file implements vsyscall emulation. vsyscalls are a legacy ABI:
+ * Userspace can request certain kernel services by calling fixed
+ * addresses. This concept is problematic:
+ *
+ * - It interferes with ASLR.
+ * - It's awkward to write code that lives in kernel addresses but is
+ * callable by userspace at fixed addresses.
+ * - The whole concept is impossible for 32-bit compat userspace.
+ * - UML cannot easily virtualize a vsyscall.
+ *
+ * As of mid-2014, I believe that there is no new userspace code that
+ * will use a vsyscall if the vDSO is present. I hope that there will
+ * soon be no new userspace code that will ever use a vsyscall.
+ *
+ * The code in this file emulates vsyscalls when notified of a page
+ * fault to a vsyscall address.
+ */
+
+#include <linux/kernel.h>
+#include <linux/timer.h>
+#include <linux/sched/signal.h>
+#include <linux/mm_types.h>
+#include <linux/syscalls.h>
+#include <linux/ratelimit.h>
+
+#include <asm/vsyscall.h>
+#include <asm/unistd.h>
+#include <asm/fixmap.h>
+#include <asm/traps.h>
+#include <asm/paravirt.h>
+
+#define CREATE_TRACE_POINTS
+#include "vsyscall_trace.h"
+
+static enum { EMULATE, XONLY, NONE } vsyscall_mode __ro_after_init =
+#ifdef CONFIG_LEGACY_VSYSCALL_NONE
+ NONE;
+#elif defined(CONFIG_LEGACY_VSYSCALL_XONLY)
+ XONLY;
+#else
+ #error VSYSCALL config is broken
+#endif
+
+static int __init vsyscall_setup(char *str)
+{
+ if (str) {
+ if (!strcmp("emulate", str))
+ vsyscall_mode = EMULATE;
+ else if (!strcmp("xonly", str))
+ vsyscall_mode = XONLY;
+ else if (!strcmp("none", str))
+ vsyscall_mode = NONE;
+ else
+ return -EINVAL;
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+early_param("vsyscall", vsyscall_setup);
+
+static void warn_bad_vsyscall(const char *level, struct pt_regs *regs,
+ const char *message)
+{
+ if (!show_unhandled_signals)
+ return;
+
+ printk_ratelimited("%s%s[%d] %s ip:%lx cs:%lx sp:%lx ax:%lx si:%lx di:%lx\n",
+ level, current->comm, task_pid_nr(current),
+ message, regs->ip, regs->cs,
+ regs->sp, regs->ax, regs->si, regs->di);
+}
+
+static int addr_to_vsyscall_nr(unsigned long addr)
+{
+ int nr;
+
+ if ((addr & ~0xC00UL) != VSYSCALL_ADDR)
+ return -EINVAL;
+
+ nr = (addr & 0xC00UL) >> 10;
+ if (nr >= 3)
+ return -EINVAL;
+
+ return nr;
+}
+
+static bool write_ok_or_segv(unsigned long ptr, size_t size)
+{
+ /*
+ * XXX: if access_ok, get_user, and put_user handled
+ * sig_on_uaccess_err, this could go away.
+ */
+
+ if (!access_ok((void __user *)ptr, size)) {
+ struct thread_struct *thread = &current->thread;
+
+ thread->error_code = X86_PF_USER | X86_PF_WRITE;
+ thread->cr2 = ptr;
+ thread->trap_nr = X86_TRAP_PF;
+
+ force_sig_fault(SIGSEGV, SEGV_MAPERR, (void __user *)ptr);
+ return false;
+ } else {
+ return true;
+ }
+}
+
+bool emulate_vsyscall(unsigned long error_code,
+ struct pt_regs *regs, unsigned long address)
+{
+ struct task_struct *tsk;
+ unsigned long caller;
+ int vsyscall_nr, syscall_nr, tmp;
+ int prev_sig_on_uaccess_err;
+ long ret;
+ unsigned long orig_dx;
+
+ /* Write faults or kernel-privilege faults never get fixed up. */
+ if ((error_code & (X86_PF_WRITE | X86_PF_USER)) != X86_PF_USER)
+ return false;
+
+ if (!(error_code & X86_PF_INSTR)) {
+ /* Failed vsyscall read */
+ if (vsyscall_mode == EMULATE)
+ return false;
+
+ /*
+ * User code tried and failed to read the vsyscall page.
+ */
+ warn_bad_vsyscall(KERN_INFO, regs, "vsyscall read attempt denied -- look up the vsyscall kernel parameter if you need a workaround");
+ return false;
+ }
+
+ /*
+ * No point in checking CS -- the only way to get here is a user mode
+ * trap to a high address, which means that we're in 64-bit user code.
+ */
+
+ WARN_ON_ONCE(address != regs->ip);
+
+ if (vsyscall_mode == NONE) {
+ warn_bad_vsyscall(KERN_INFO, regs,
+ "vsyscall attempted with vsyscall=none");
+ return false;
+ }
+
+ vsyscall_nr = addr_to_vsyscall_nr(address);
+
+ trace_emulate_vsyscall(vsyscall_nr);
+
+ if (vsyscall_nr < 0) {
+ warn_bad_vsyscall(KERN_WARNING, regs,
+ "misaligned vsyscall (exploit attempt or buggy program) -- look up the vsyscall kernel parameter if you need a workaround");
+ goto sigsegv;
+ }
+
+ if (get_user(caller, (unsigned long __user *)regs->sp) != 0) {
+ warn_bad_vsyscall(KERN_WARNING, regs,
+ "vsyscall with bad stack (exploit attempt?)");
+ goto sigsegv;
+ }
+
+ tsk = current;
+
+ /*
+ * Check for access_ok violations and find the syscall nr.
+ *
+ * NULL is a valid user pointer (in the access_ok sense) on 32-bit and
+ * 64-bit, so we don't need to special-case it here. For all the
+ * vsyscalls, NULL means "don't write anything" not "write it at
+ * address 0".
+ */
+ switch (vsyscall_nr) {
+ case 0:
+ if (!write_ok_or_segv(regs->di, sizeof(struct __kernel_old_timeval)) ||
+ !write_ok_or_segv(regs->si, sizeof(struct timezone))) {
+ ret = -EFAULT;
+ goto check_fault;
+ }
+
+ syscall_nr = __NR_gettimeofday;
+ break;
+
+ case 1:
+ if (!write_ok_or_segv(regs->di, sizeof(__kernel_old_time_t))) {
+ ret = -EFAULT;
+ goto check_fault;
+ }
+
+ syscall_nr = __NR_time;
+ break;
+
+ case 2:
+ if (!write_ok_or_segv(regs->di, sizeof(unsigned)) ||
+ !write_ok_or_segv(regs->si, sizeof(unsigned))) {
+ ret = -EFAULT;
+ goto check_fault;
+ }
+
+ syscall_nr = __NR_getcpu;
+ break;
+ }
+
+ /*
+ * Handle seccomp. regs->ip must be the original value.
+ * See seccomp_send_sigsys and Documentation/userspace-api/seccomp_filter.rst.
+ *
+ * We could optimize the seccomp disabled case, but performance
+ * here doesn't matter.
+ */
+ regs->orig_ax = syscall_nr;
+ regs->ax = -ENOSYS;
+ tmp = secure_computing();
+ if ((!tmp && regs->orig_ax != syscall_nr) || regs->ip != address) {
+ warn_bad_vsyscall(KERN_DEBUG, regs,
+ "seccomp tried to change syscall nr or ip");
+ force_exit_sig(SIGSYS);
+ return true;
+ }
+ regs->orig_ax = -1;
+ if (tmp)
+ goto do_ret; /* skip requested */
+
+ /*
+ * With a real vsyscall, page faults cause SIGSEGV. We want to
+ * preserve that behavior to make writing exploits harder.
+ */
+ prev_sig_on_uaccess_err = current->thread.sig_on_uaccess_err;
+ current->thread.sig_on_uaccess_err = 1;
+
+ ret = -EFAULT;
+ switch (vsyscall_nr) {
+ case 0:
+ /* this decodes regs->di and regs->si on its own */
+ ret = __x64_sys_gettimeofday(regs);
+ break;
+
+ case 1:
+ /* this decodes regs->di on its own */
+ ret = __x64_sys_time(regs);
+ break;
+
+ case 2:
+ /* while we could clobber regs->dx, we didn't in the past... */
+ orig_dx = regs->dx;
+ regs->dx = 0;
+ /* this decodes regs->di, regs->si and regs->dx on its own */
+ ret = __x64_sys_getcpu(regs);
+ regs->dx = orig_dx;
+ break;
+ }
+
+ current->thread.sig_on_uaccess_err = prev_sig_on_uaccess_err;
+
+check_fault:
+ if (ret == -EFAULT) {
+ /* Bad news -- userspace fed a bad pointer to a vsyscall. */
+ warn_bad_vsyscall(KERN_INFO, regs,
+ "vsyscall fault (exploit attempt?)");
+
+ /*
+ * If we failed to generate a signal for any reason,
+ * generate one here. (This should be impossible.)
+ */
+ if (WARN_ON_ONCE(!sigismember(&tsk->pending.signal, SIGBUS) &&
+ !sigismember(&tsk->pending.signal, SIGSEGV)))
+ goto sigsegv;
+
+ return true; /* Don't emulate the ret. */
+ }
+
+ regs->ax = ret;
+
+do_ret:
+ /* Emulate a ret instruction. */
+ regs->ip = caller;
+ regs->sp += 8;
+ return true;
+
+sigsegv:
+ force_sig(SIGSEGV);
+ return true;
+}
+
+/*
+ * A pseudo VMA to allow ptrace access for the vsyscall page. This only
+ * covers the 64bit vsyscall page now. 32bit has a real VMA now and does
+ * not need special handling anymore:
+ */
+static const char *gate_vma_name(struct vm_area_struct *vma)
+{
+ return "[vsyscall]";
+}
+static const struct vm_operations_struct gate_vma_ops = {
+ .name = gate_vma_name,
+};
+static struct vm_area_struct gate_vma __ro_after_init = {
+ .vm_start = VSYSCALL_ADDR,
+ .vm_end = VSYSCALL_ADDR + PAGE_SIZE,
+ .vm_page_prot = PAGE_READONLY_EXEC,
+ .vm_flags = VM_READ | VM_EXEC,
+ .vm_ops = &gate_vma_ops,
+};
+
+struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
+{
+#ifdef CONFIG_COMPAT
+ if (!mm || !test_bit(MM_CONTEXT_HAS_VSYSCALL, &mm->context.flags))
+ return NULL;
+#endif
+ if (vsyscall_mode == NONE)
+ return NULL;
+ return &gate_vma;
+}
+
+int in_gate_area(struct mm_struct *mm, unsigned long addr)
+{
+ struct vm_area_struct *vma = get_gate_vma(mm);
+
+ if (!vma)
+ return 0;
+
+ return (addr >= vma->vm_start) && (addr < vma->vm_end);
+}
+
+/*
+ * Use this when you have no reliable mm, typically from interrupt
+ * context. It is less reliable than using a task's mm and may give
+ * false positives.
+ */
+int in_gate_area_no_mm(unsigned long addr)
+{
+ return vsyscall_mode != NONE && (addr & PAGE_MASK) == VSYSCALL_ADDR;
+}
+
+/*
+ * The VSYSCALL page is the only user-accessible page in the kernel address
+ * range. Normally, the kernel page tables can have _PAGE_USER clear, but
+ * the tables covering VSYSCALL_ADDR need _PAGE_USER set if vsyscalls
+ * are enabled.
+ *
+ * Some day we may create a "minimal" vsyscall mode in which we emulate
+ * vsyscalls but leave the page not present. If so, we skip calling
+ * this.
+ */
+void __init set_vsyscall_pgtable_user_bits(pgd_t *root)
+{
+ pgd_t *pgd;
+ p4d_t *p4d;
+ pud_t *pud;
+ pmd_t *pmd;
+
+ pgd = pgd_offset_pgd(root, VSYSCALL_ADDR);
+ set_pgd(pgd, __pgd(pgd_val(*pgd) | _PAGE_USER));
+ p4d = p4d_offset(pgd, VSYSCALL_ADDR);
+#if CONFIG_PGTABLE_LEVELS >= 5
+ set_p4d(p4d, __p4d(p4d_val(*p4d) | _PAGE_USER));
+#endif
+ pud = pud_offset(p4d, VSYSCALL_ADDR);
+ set_pud(pud, __pud(pud_val(*pud) | _PAGE_USER));
+ pmd = pmd_offset(pud, VSYSCALL_ADDR);
+ set_pmd(pmd, __pmd(pmd_val(*pmd) | _PAGE_USER));
+}
+
+void __init map_vsyscall(void)
+{
+ extern char __vsyscall_page;
+ unsigned long physaddr_vsyscall = __pa_symbol(&__vsyscall_page);
+
+ /*
+ * For full emulation, the page needs to exist for real. In
+ * execute-only mode, there is no PTE at all backing the vsyscall
+ * page.
+ */
+ if (vsyscall_mode == EMULATE) {
+ __set_fixmap(VSYSCALL_PAGE, physaddr_vsyscall,
+ PAGE_KERNEL_VVAR);
+ set_vsyscall_pgtable_user_bits(swapper_pg_dir);
+ }
+
+ if (vsyscall_mode == XONLY)
+ vm_flags_init(&gate_vma, VM_EXEC);
+
+ BUILD_BUG_ON((unsigned long)__fix_to_virt(VSYSCALL_PAGE) !=
+ (unsigned long)VSYSCALL_ADDR);
+}
diff --git a/arch/x86/entry/vsyscall/vsyscall_emu_64.S b/arch/x86/entry/vsyscall/vsyscall_emu_64.S
new file mode 100644
index 000000000000..ef2dd1827243
--- /dev/null
+++ b/arch/x86/entry/vsyscall/vsyscall_emu_64.S
@@ -0,0 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vsyscall_emu_64.S: Vsyscall emulation page
+ *
+ * Copyright (c) 2011 Andy Lutomirski
+ */
+
+#include <linux/linkage.h>
+
+#include <asm/irq_vectors.h>
+#include <asm/page_types.h>
+#include <asm/unistd_64.h>
+
+__PAGE_ALIGNED_DATA
+ .globl __vsyscall_page
+ .balign PAGE_SIZE, 0xcc
+ .type __vsyscall_page, @object
+__vsyscall_page:
+
+ mov $__NR_gettimeofday, %rax
+ syscall
+ ret
+ int3
+
+ .balign 1024, 0xcc
+ mov $__NR_time, %rax
+ syscall
+ ret
+ int3
+
+ .balign 1024, 0xcc
+ mov $__NR_getcpu, %rax
+ syscall
+ ret
+ int3
+
+ .balign 4096, 0xcc
+
+ .size __vsyscall_page, 4096
diff --git a/arch/x86/entry/vsyscall/vsyscall_trace.h b/arch/x86/entry/vsyscall/vsyscall_trace.h
new file mode 100644
index 000000000000..3c3f9765a85c
--- /dev/null
+++ b/arch/x86/entry/vsyscall/vsyscall_trace.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM vsyscall
+
+#if !defined(__VSYSCALL_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define __VSYSCALL_TRACE_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(emulate_vsyscall,
+
+ TP_PROTO(int nr),
+
+ TP_ARGS(nr),
+
+ TP_STRUCT__entry(__field(int, nr)),
+
+ TP_fast_assign(
+ __entry->nr = nr;
+ ),
+
+ TP_printk("nr = %d", __entry->nr)
+);
+
+#endif
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH ../../arch/x86/entry/vsyscall/
+#define TRACE_INCLUDE_FILE vsyscall_trace
+#include <trace/define_trace.h>
diff --git a/arch/x86/events/Kconfig b/arch/x86/events/Kconfig
new file mode 100644
index 000000000000..dabdf3d7bf84
--- /dev/null
+++ b/arch/x86/events/Kconfig
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: GPL-2.0
+menu "Performance monitoring"
+
+config PERF_EVENTS_INTEL_UNCORE
+ tristate "Intel uncore performance events"
+ depends on PERF_EVENTS && CPU_SUP_INTEL && PCI
+ default y
+ help
+ Include support for Intel uncore performance events. These are
+ available on NehalemEX and more modern processors.
+
+config PERF_EVENTS_INTEL_RAPL
+ tristate "Intel/AMD rapl performance events"
+ depends on PERF_EVENTS && (CPU_SUP_INTEL || CPU_SUP_AMD) && PCI
+ default y
+ help
+ Include support for Intel and AMD rapl performance events for power
+ monitoring on modern processors.
+
+config PERF_EVENTS_INTEL_CSTATE
+ tristate "Intel cstate performance events"
+ depends on PERF_EVENTS && CPU_SUP_INTEL && PCI
+ default y
+ help
+ Include support for Intel cstate performance events for power
+ monitoring on modern processors.
+
+config PERF_EVENTS_AMD_POWER
+ depends on PERF_EVENTS && CPU_SUP_AMD
+ tristate "AMD Processor Power Reporting Mechanism"
+ help
+ Provide power reporting mechanism support for AMD processors.
+ Currently, it leverages X86_FEATURE_ACC_POWER
+ (CPUID Fn8000_0007_EDX[12]) interface to calculate the
+ average power consumption on Family 15h processors.
+
+config PERF_EVENTS_AMD_UNCORE
+ tristate "AMD Uncore performance events"
+ depends on PERF_EVENTS && CPU_SUP_AMD
+ default y
+ help
+ Include support for AMD uncore performance events for use with
+ e.g., perf stat -e amd_l3/.../,amd_df/.../.
+
+ To compile this driver as a module, choose M here: the
+ module will be called 'amd-uncore'.
+
+config PERF_EVENTS_AMD_BRS
+ depends on PERF_EVENTS && CPU_SUP_AMD
+ bool "AMD Zen3 Branch Sampling support"
+ help
+ Enable AMD Zen3 branch sampling support (BRS) which samples up to
+ 16 consecutive taken branches in registers.
+
+endmenu
diff --git a/arch/x86/events/Makefile b/arch/x86/events/Makefile
new file mode 100644
index 000000000000..86a76efa8bb6
--- /dev/null
+++ b/arch/x86/events/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-y += core.o probe.o utils.o
+obj-$(CONFIG_PERF_EVENTS_INTEL_RAPL) += rapl.o
+obj-y += amd/
+obj-$(CONFIG_X86_LOCAL_APIC) += msr.o
+obj-$(CONFIG_CPU_SUP_INTEL) += intel/
+obj-$(CONFIG_CPU_SUP_CENTAUR) += zhaoxin/
+obj-$(CONFIG_CPU_SUP_ZHAOXIN) += zhaoxin/
diff --git a/arch/x86/events/amd/Makefile b/arch/x86/events/amd/Makefile
new file mode 100644
index 000000000000..527d947eb76b
--- /dev/null
+++ b/arch/x86/events/amd/Makefile
@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_CPU_SUP_AMD) += core.o lbr.o
+obj-$(CONFIG_PERF_EVENTS_AMD_BRS) += brs.o
+obj-$(CONFIG_PERF_EVENTS_AMD_POWER) += power.o
+obj-$(CONFIG_X86_LOCAL_APIC) += ibs.o
+obj-$(CONFIG_PERF_EVENTS_AMD_UNCORE) += amd-uncore.o
+amd-uncore-objs := uncore.o
+ifdef CONFIG_AMD_IOMMU
+obj-$(CONFIG_CPU_SUP_AMD) += iommu.o
+endif
diff --git a/arch/x86/events/amd/brs.c b/arch/x86/events/amd/brs.c
new file mode 100644
index 000000000000..ed308719236c
--- /dev/null
+++ b/arch/x86/events/amd/brs.c
@@ -0,0 +1,431 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Implement support for AMD Fam19h Branch Sampling feature
+ * Based on specifications published in AMD PPR Fam19 Model 01
+ *
+ * Copyright 2021 Google LLC
+ * Contributed by Stephane Eranian <eranian@google.com>
+ */
+#include <linux/kernel.h>
+#include <linux/jump_label.h>
+#include <asm/msr.h>
+#include <asm/cpufeature.h>
+
+#include "../perf_event.h"
+
+#define BRS_POISON 0xFFFFFFFFFFFFFFFEULL /* mark limit of valid entries */
+
+/* Debug Extension Configuration register layout */
+union amd_debug_extn_cfg {
+ __u64 val;
+ struct {
+ __u64 rsvd0:2, /* reserved */
+ brsmen:1, /* branch sample enable */
+ rsvd4_3:2,/* reserved - must be 0x3 */
+ vb:1, /* valid branches recorded */
+ rsvd2:10, /* reserved */
+ msroff:4, /* index of next entry to write */
+ rsvd3:4, /* reserved */
+ pmc:3, /* #PMC holding the sampling event */
+ rsvd4:37; /* reserved */
+ };
+};
+
+static inline unsigned int brs_from(int idx)
+{
+ return MSR_AMD_SAMP_BR_FROM + 2 * idx;
+}
+
+static inline unsigned int brs_to(int idx)
+{
+ return MSR_AMD_SAMP_BR_FROM + 2 * idx + 1;
+}
+
+static __always_inline void set_debug_extn_cfg(u64 val)
+{
+ /* bits[4:3] must always be set to 11b */
+ __wrmsr(MSR_AMD_DBG_EXTN_CFG, val | 3ULL << 3, val >> 32);
+}
+
+static __always_inline u64 get_debug_extn_cfg(void)
+{
+ return __rdmsr(MSR_AMD_DBG_EXTN_CFG);
+}
+
+static bool __init amd_brs_detect(void)
+{
+ if (!cpu_feature_enabled(X86_FEATURE_BRS))
+ return false;
+
+ switch (boot_cpu_data.x86) {
+ case 0x19: /* AMD Fam19h (Zen3) */
+ x86_pmu.lbr_nr = 16;
+
+ /* No hardware filtering supported */
+ x86_pmu.lbr_sel_map = NULL;
+ x86_pmu.lbr_sel_mask = 0;
+ break;
+ default:
+ return false;
+ }
+
+ return true;
+}
+
+/*
+ * Current BRS implementation does not support branch type or privilege level
+ * filtering. Therefore, this function simply enforces these limitations. No need for
+ * a br_sel_map. Software filtering is not supported because it would not correlate well
+ * with a sampling period.
+ */
+static int amd_brs_setup_filter(struct perf_event *event)
+{
+ u64 type = event->attr.branch_sample_type;
+
+ /* No BRS support */
+ if (!x86_pmu.lbr_nr)
+ return -EOPNOTSUPP;
+
+ /* Can only capture all branches, i.e., no filtering */
+ if ((type & ~PERF_SAMPLE_BRANCH_PLM_ALL) != PERF_SAMPLE_BRANCH_ANY)
+ return -EINVAL;
+
+ return 0;
+}
+
+static inline int amd_is_brs_event(struct perf_event *e)
+{
+ return (e->hw.config & AMD64_RAW_EVENT_MASK) == AMD_FAM19H_BRS_EVENT;
+}
+
+int amd_brs_hw_config(struct perf_event *event)
+{
+ int ret = 0;
+
+ /*
+ * Due to interrupt holding, BRS is not recommended in
+ * counting mode.
+ */
+ if (!is_sampling_event(event))
+ return -EINVAL;
+
+ /*
+ * Due to the way BRS operates by holding the interrupt until
+ * lbr_nr entries have been captured, it does not make sense
+ * to allow sampling on BRS with an event that does not match
+ * what BRS is capturing, i.e., retired taken branches.
+ * Otherwise the correlation with the event's period is even
+ * more loose:
+ *
+ * With retired taken branch:
+ * Effective P = P + 16 + X
+ * With any other event:
+ * Effective P = P + Y + X
+ *
+ * Where X is the number of taken branches due to interrupt
+ * skid. Skid is large.
+ *
+ * Where Y is the occurences of the event while BRS is
+ * capturing the lbr_nr entries.
+ *
+ * By using retired taken branches, we limit the impact on the
+ * Y variable. We know it cannot be more than the depth of
+ * BRS.
+ */
+ if (!amd_is_brs_event(event))
+ return -EINVAL;
+
+ /*
+ * BRS implementation does not work with frequency mode
+ * reprogramming of the period.
+ */
+ if (event->attr.freq)
+ return -EINVAL;
+ /*
+ * The kernel subtracts BRS depth from period, so it must
+ * be big enough.
+ */
+ if (event->attr.sample_period <= x86_pmu.lbr_nr)
+ return -EINVAL;
+
+ /*
+ * Check if we can allow PERF_SAMPLE_BRANCH_STACK
+ */
+ ret = amd_brs_setup_filter(event);
+
+ /* only set in case of success */
+ if (!ret)
+ event->hw.flags |= PERF_X86_EVENT_AMD_BRS;
+
+ return ret;
+}
+
+/* tos = top of stack, i.e., last valid entry written */
+static inline int amd_brs_get_tos(union amd_debug_extn_cfg *cfg)
+{
+ /*
+ * msroff: index of next entry to write so top-of-stack is one off
+ * if BRS is full then msroff is set back to 0.
+ */
+ return (cfg->msroff ? cfg->msroff : x86_pmu.lbr_nr) - 1;
+}
+
+/*
+ * make sure we have a sane BRS offset to begin with
+ * especially with kexec
+ */
+void amd_brs_reset(void)
+{
+ if (!cpu_feature_enabled(X86_FEATURE_BRS))
+ return;
+
+ /*
+ * Reset config
+ */
+ set_debug_extn_cfg(0);
+
+ /*
+ * Mark first entry as poisoned
+ */
+ wrmsrl(brs_to(0), BRS_POISON);
+}
+
+int __init amd_brs_init(void)
+{
+ if (!amd_brs_detect())
+ return -EOPNOTSUPP;
+
+ pr_cont("%d-deep BRS, ", x86_pmu.lbr_nr);
+
+ return 0;
+}
+
+void amd_brs_enable(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ union amd_debug_extn_cfg cfg;
+
+ /* Activate only on first user */
+ if (++cpuc->brs_active > 1)
+ return;
+
+ cfg.val = 0; /* reset all fields */
+ cfg.brsmen = 1; /* enable branch sampling */
+
+ /* Set enable bit */
+ set_debug_extn_cfg(cfg.val);
+}
+
+void amd_brs_enable_all(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ if (cpuc->lbr_users)
+ amd_brs_enable();
+}
+
+void amd_brs_disable(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ union amd_debug_extn_cfg cfg;
+
+ /* Check if active (could be disabled via x86_pmu_disable_all()) */
+ if (!cpuc->brs_active)
+ return;
+
+ /* Only disable for last user */
+ if (--cpuc->brs_active)
+ return;
+
+ /*
+ * Clear the brsmen bit but preserve the others as they contain
+ * useful state such as vb and msroff
+ */
+ cfg.val = get_debug_extn_cfg();
+
+ /*
+ * When coming in on interrupt and BRS is full, then hw will have
+ * already stopped BRS, no need to issue wrmsr again
+ */
+ if (cfg.brsmen) {
+ cfg.brsmen = 0;
+ set_debug_extn_cfg(cfg.val);
+ }
+}
+
+void amd_brs_disable_all(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ if (cpuc->lbr_users)
+ amd_brs_disable();
+}
+
+static bool amd_brs_match_plm(struct perf_event *event, u64 to)
+{
+ int type = event->attr.branch_sample_type;
+ int plm_k = PERF_SAMPLE_BRANCH_KERNEL | PERF_SAMPLE_BRANCH_HV;
+ int plm_u = PERF_SAMPLE_BRANCH_USER;
+
+ if (!(type & plm_k) && kernel_ip(to))
+ return 0;
+
+ if (!(type & plm_u) && !kernel_ip(to))
+ return 0;
+
+ return 1;
+}
+
+/*
+ * Caller must ensure amd_brs_inuse() is true before calling
+ * return:
+ */
+void amd_brs_drain(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct perf_event *event = cpuc->events[0];
+ struct perf_branch_entry *br = cpuc->lbr_entries;
+ union amd_debug_extn_cfg cfg;
+ u32 i, nr = 0, num, tos, start;
+ u32 shift = 64 - boot_cpu_data.x86_virt_bits;
+
+ /*
+ * BRS event forced on PMC0,
+ * so check if there is an event.
+ * It is possible to have lbr_users > 0 but the event
+ * not yet scheduled due to long latency PMU irq
+ */
+ if (!event)
+ goto empty;
+
+ cfg.val = get_debug_extn_cfg();
+
+ /* Sanity check [0-x86_pmu.lbr_nr] */
+ if (WARN_ON_ONCE(cfg.msroff >= x86_pmu.lbr_nr))
+ goto empty;
+
+ /* No valid branch */
+ if (cfg.vb == 0)
+ goto empty;
+
+ /*
+ * msr.off points to next entry to be written
+ * tos = most recent entry index = msr.off - 1
+ * BRS register buffer saturates, so we know we have
+ * start < tos and that we have to read from start to tos
+ */
+ start = 0;
+ tos = amd_brs_get_tos(&cfg);
+
+ num = tos - start + 1;
+
+ /*
+ * BRS is only one pass (saturation) from MSROFF to depth-1
+ * MSROFF wraps to zero when buffer is full
+ */
+ for (i = 0; i < num; i++) {
+ u32 brs_idx = tos - i;
+ u64 from, to;
+
+ rdmsrl(brs_to(brs_idx), to);
+
+ /* Entry does not belong to us (as marked by kernel) */
+ if (to == BRS_POISON)
+ break;
+
+ /*
+ * Sign-extend SAMP_BR_TO to 64 bits, bits 61-63 are reserved.
+ * Necessary to generate proper virtual addresses suitable for
+ * symbolization
+ */
+ to = (u64)(((s64)to << shift) >> shift);
+
+ if (!amd_brs_match_plm(event, to))
+ continue;
+
+ rdmsrl(brs_from(brs_idx), from);
+
+ perf_clear_branch_entry_bitfields(br+nr);
+
+ br[nr].from = from;
+ br[nr].to = to;
+
+ nr++;
+ }
+empty:
+ /* Record number of sampled branches */
+ cpuc->lbr_stack.nr = nr;
+}
+
+/*
+ * Poison most recent entry to prevent reuse by next task
+ * required because BRS entry are not tagged by PID
+ */
+static void amd_brs_poison_buffer(void)
+{
+ union amd_debug_extn_cfg cfg;
+ unsigned int idx;
+
+ /* Get current state */
+ cfg.val = get_debug_extn_cfg();
+
+ /* idx is most recently written entry */
+ idx = amd_brs_get_tos(&cfg);
+
+ /* Poison target of entry */
+ wrmsrl(brs_to(idx), BRS_POISON);
+}
+
+/*
+ * On context switch in, we need to make sure no samples from previous user
+ * are left in the BRS.
+ *
+ * On ctxswin, sched_in = true, called after the PMU has started
+ * On ctxswout, sched_in = false, called before the PMU is stopped
+ */
+void amd_pmu_brs_sched_task(struct perf_event_pmu_context *pmu_ctx, bool sched_in)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /* no active users */
+ if (!cpuc->lbr_users)
+ return;
+
+ /*
+ * On context switch in, we need to ensure we do not use entries
+ * from previous BRS user on that CPU, so we poison the buffer as
+ * a faster way compared to resetting all entries.
+ */
+ if (sched_in)
+ amd_brs_poison_buffer();
+}
+
+/*
+ * called from ACPI processor_idle.c or acpi_pad.c
+ * with interrupts disabled
+ */
+void noinstr perf_amd_brs_lopwr_cb(bool lopwr_in)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ union amd_debug_extn_cfg cfg;
+
+ /*
+ * on mwait in, we may end up in non C0 state.
+ * we must disable branch sampling to avoid holding the NMI
+ * for too long. We disable it in hardware but we
+ * keep the state in cpuc, so we can re-enable.
+ *
+ * The hardware will deliver the NMI if needed when brsmen cleared
+ */
+ if (cpuc->brs_active) {
+ cfg.val = get_debug_extn_cfg();
+ cfg.brsmen = !lopwr_in;
+ set_debug_extn_cfg(cfg.val);
+ }
+}
+
+DEFINE_STATIC_CALL_NULL(perf_lopwr_cb, perf_amd_brs_lopwr_cb);
+EXPORT_STATIC_CALL_TRAMP_GPL(perf_lopwr_cb);
+
+void __init amd_brs_lopwr_init(void)
+{
+ static_call_update(perf_lopwr_cb, perf_amd_brs_lopwr_cb);
+}
diff --git a/arch/x86/events/amd/core.c b/arch/x86/events/amd/core.c
new file mode 100644
index 000000000000..bccea57dee81
--- /dev/null
+++ b/arch/x86/events/amd/core.c
@@ -0,0 +1,1509 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/perf_event.h>
+#include <linux/jump_label.h>
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <asm/apicdef.h>
+#include <asm/apic.h>
+#include <asm/nmi.h>
+
+#include "../perf_event.h"
+
+static DEFINE_PER_CPU(unsigned long, perf_nmi_tstamp);
+static unsigned long perf_nmi_window;
+
+/* AMD Event 0xFFF: Merge. Used with Large Increment per Cycle events */
+#define AMD_MERGE_EVENT ((0xFULL << 32) | 0xFFULL)
+#define AMD_MERGE_EVENT_ENABLE (AMD_MERGE_EVENT | ARCH_PERFMON_EVENTSEL_ENABLE)
+
+/* PMC Enable and Overflow bits for PerfCntrGlobal* registers */
+static u64 amd_pmu_global_cntr_mask __read_mostly;
+
+static __initconst const u64 amd_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0040, /* Data Cache Accesses */
+ [ C(RESULT_MISS) ] = 0x0141, /* Data Cache Misses */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0267, /* Data Prefetcher :attempts */
+ [ C(RESULT_MISS) ] = 0x0167, /* Data Prefetcher :cancelled */
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0080, /* Instruction cache fetches */
+ [ C(RESULT_MISS) ] = 0x0081, /* Instruction cache misses */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x014B, /* Prefetch Instructions :Load */
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x037D, /* Requests to L2 Cache :IC+DC */
+ [ C(RESULT_MISS) ] = 0x037E, /* L2 Cache Misses : IC+DC */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x017F, /* L2 Fill/Writeback */
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0040, /* Data Cache Accesses */
+ [ C(RESULT_MISS) ] = 0x0746, /* L1_DTLB_AND_L2_DLTB_MISS.ALL */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0080, /* Instruction fecthes */
+ [ C(RESULT_MISS) ] = 0x0385, /* L1_ITLB_AND_L2_ITLB_MISS.ALL */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c2, /* Retired Branch Instr. */
+ [ C(RESULT_MISS) ] = 0x00c3, /* Retired Mispredicted BI */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0xb8e9, /* CPU Request to Memory, l+r */
+ [ C(RESULT_MISS) ] = 0x98e9, /* CPU Request to Memory, r */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+};
+
+static __initconst const u64 amd_hw_cache_event_ids_f17h
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+[C(L1D)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0040, /* Data Cache Accesses */
+ [C(RESULT_MISS)] = 0xc860, /* L2$ access from DC Miss */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0,
+ [C(RESULT_MISS)] = 0,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0xff5a, /* h/w prefetch DC Fills */
+ [C(RESULT_MISS)] = 0,
+ },
+},
+[C(L1I)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0080, /* Instruction cache fetches */
+ [C(RESULT_MISS)] = 0x0081, /* Instruction cache misses */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0,
+ [C(RESULT_MISS)] = 0,
+ },
+},
+[C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0,
+ [C(RESULT_MISS)] = 0,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0,
+ [C(RESULT_MISS)] = 0,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0,
+ [C(RESULT_MISS)] = 0,
+ },
+},
+[C(DTLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0xff45, /* All L2 DTLB accesses */
+ [C(RESULT_MISS)] = 0xf045, /* L2 DTLB misses (PT walks) */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0,
+ [C(RESULT_MISS)] = 0,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0,
+ [C(RESULT_MISS)] = 0,
+ },
+},
+[C(ITLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0084, /* L1 ITLB misses, L2 ITLB hits */
+ [C(RESULT_MISS)] = 0xff85, /* L1 ITLB misses, L2 misses */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+[C(BPU)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x00c2, /* Retired Branch Instr. */
+ [C(RESULT_MISS)] = 0x00c3, /* Retired Mispredicted BI */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+[C(NODE)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0,
+ [C(RESULT_MISS)] = 0,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+};
+
+/*
+ * AMD Performance Monitor K7 and later, up to and including Family 16h:
+ */
+static const u64 amd_perfmon_event_map[PERF_COUNT_HW_MAX] =
+{
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0x077d,
+ [PERF_COUNT_HW_CACHE_MISSES] = 0x077e,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
+ [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00d0, /* "Decoder empty" event */
+ [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x00d1, /* "Dispatch stalls" event */
+};
+
+/*
+ * AMD Performance Monitor Family 17h and later:
+ */
+static const u64 amd_f17h_perfmon_event_map[PERF_COUNT_HW_MAX] =
+{
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x0076,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0xff60,
+ [PERF_COUNT_HW_CACHE_MISSES] = 0x0964,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c2,
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c3,
+ [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x0287,
+ [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = 0x0187,
+};
+
+static u64 amd_pmu_event_map(int hw_event)
+{
+ if (boot_cpu_data.x86 >= 0x17)
+ return amd_f17h_perfmon_event_map[hw_event];
+
+ return amd_perfmon_event_map[hw_event];
+}
+
+/*
+ * Previously calculated offsets
+ */
+static unsigned int event_offsets[X86_PMC_IDX_MAX] __read_mostly;
+static unsigned int count_offsets[X86_PMC_IDX_MAX] __read_mostly;
+
+/*
+ * Legacy CPUs:
+ * 4 counters starting at 0xc0010000 each offset by 1
+ *
+ * CPUs with core performance counter extensions:
+ * 6 counters starting at 0xc0010200 each offset by 2
+ */
+static inline int amd_pmu_addr_offset(int index, bool eventsel)
+{
+ int offset;
+
+ if (!index)
+ return index;
+
+ if (eventsel)
+ offset = event_offsets[index];
+ else
+ offset = count_offsets[index];
+
+ if (offset)
+ return offset;
+
+ if (!boot_cpu_has(X86_FEATURE_PERFCTR_CORE))
+ offset = index;
+ else
+ offset = index << 1;
+
+ if (eventsel)
+ event_offsets[index] = offset;
+ else
+ count_offsets[index] = offset;
+
+ return offset;
+}
+
+/*
+ * AMD64 events are detected based on their event codes.
+ */
+static inline unsigned int amd_get_event_code(struct hw_perf_event *hwc)
+{
+ return ((hwc->config >> 24) & 0x0f00) | (hwc->config & 0x00ff);
+}
+
+static inline bool amd_is_pair_event_code(struct hw_perf_event *hwc)
+{
+ if (!(x86_pmu.flags & PMU_FL_PAIR))
+ return false;
+
+ switch (amd_get_event_code(hwc)) {
+ case 0x003: return true; /* Retired SSE/AVX FLOPs */
+ default: return false;
+ }
+}
+
+DEFINE_STATIC_CALL_RET0(amd_pmu_branch_hw_config, *x86_pmu.hw_config);
+
+static int amd_core_hw_config(struct perf_event *event)
+{
+ if (event->attr.exclude_host && event->attr.exclude_guest)
+ /*
+ * When HO == GO == 1 the hardware treats that as GO == HO == 0
+ * and will count in both modes. We don't want to count in that
+ * case so we emulate no-counting by setting US = OS = 0.
+ */
+ event->hw.config &= ~(ARCH_PERFMON_EVENTSEL_USR |
+ ARCH_PERFMON_EVENTSEL_OS);
+ else if (event->attr.exclude_host)
+ event->hw.config |= AMD64_EVENTSEL_GUESTONLY;
+ else if (event->attr.exclude_guest)
+ event->hw.config |= AMD64_EVENTSEL_HOSTONLY;
+
+ if ((x86_pmu.flags & PMU_FL_PAIR) && amd_is_pair_event_code(&event->hw))
+ event->hw.flags |= PERF_X86_EVENT_PAIR;
+
+ if (has_branch_stack(event))
+ return static_call(amd_pmu_branch_hw_config)(event);
+
+ return 0;
+}
+
+static inline int amd_is_nb_event(struct hw_perf_event *hwc)
+{
+ return (hwc->config & 0xe0) == 0xe0;
+}
+
+static inline int amd_has_nb(struct cpu_hw_events *cpuc)
+{
+ struct amd_nb *nb = cpuc->amd_nb;
+
+ return nb && nb->nb_id != -1;
+}
+
+static int amd_pmu_hw_config(struct perf_event *event)
+{
+ int ret;
+
+ /* pass precise event sampling to ibs: */
+ if (event->attr.precise_ip && get_ibs_caps())
+ return -ENOENT;
+
+ if (has_branch_stack(event) && !x86_pmu.lbr_nr)
+ return -EOPNOTSUPP;
+
+ ret = x86_pmu_hw_config(event);
+ if (ret)
+ return ret;
+
+ if (event->attr.type == PERF_TYPE_RAW)
+ event->hw.config |= event->attr.config & AMD64_RAW_EVENT_MASK;
+
+ return amd_core_hw_config(event);
+}
+
+static void __amd_put_nb_event_constraints(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ struct amd_nb *nb = cpuc->amd_nb;
+ int i;
+
+ /*
+ * need to scan whole list because event may not have
+ * been assigned during scheduling
+ *
+ * no race condition possible because event can only
+ * be removed on one CPU at a time AND PMU is disabled
+ * when we come here
+ */
+ for (i = 0; i < x86_pmu.num_counters; i++) {
+ if (cmpxchg(nb->owners + i, event, NULL) == event)
+ break;
+ }
+}
+
+ /*
+ * AMD64 NorthBridge events need special treatment because
+ * counter access needs to be synchronized across all cores
+ * of a package. Refer to BKDG section 3.12
+ *
+ * NB events are events measuring L3 cache, Hypertransport
+ * traffic. They are identified by an event code >= 0xe00.
+ * They measure events on the NorthBride which is shared
+ * by all cores on a package. NB events are counted on a
+ * shared set of counters. When a NB event is programmed
+ * in a counter, the data actually comes from a shared
+ * counter. Thus, access to those counters needs to be
+ * synchronized.
+ *
+ * We implement the synchronization such that no two cores
+ * can be measuring NB events using the same counters. Thus,
+ * we maintain a per-NB allocation table. The available slot
+ * is propagated using the event_constraint structure.
+ *
+ * We provide only one choice for each NB event based on
+ * the fact that only NB events have restrictions. Consequently,
+ * if a counter is available, there is a guarantee the NB event
+ * will be assigned to it. If no slot is available, an empty
+ * constraint is returned and scheduling will eventually fail
+ * for this event.
+ *
+ * Note that all cores attached the same NB compete for the same
+ * counters to host NB events, this is why we use atomic ops. Some
+ * multi-chip CPUs may have more than one NB.
+ *
+ * Given that resources are allocated (cmpxchg), they must be
+ * eventually freed for others to use. This is accomplished by
+ * calling __amd_put_nb_event_constraints()
+ *
+ * Non NB events are not impacted by this restriction.
+ */
+static struct event_constraint *
+__amd_get_nb_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event,
+ struct event_constraint *c)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct amd_nb *nb = cpuc->amd_nb;
+ struct perf_event *old;
+ int idx, new = -1;
+
+ if (!c)
+ c = &unconstrained;
+
+ if (cpuc->is_fake)
+ return c;
+
+ /*
+ * detect if already present, if so reuse
+ *
+ * cannot merge with actual allocation
+ * because of possible holes
+ *
+ * event can already be present yet not assigned (in hwc->idx)
+ * because of successive calls to x86_schedule_events() from
+ * hw_perf_group_sched_in() without hw_perf_enable()
+ */
+ for_each_set_bit(idx, c->idxmsk, x86_pmu.num_counters) {
+ if (new == -1 || hwc->idx == idx)
+ /* assign free slot, prefer hwc->idx */
+ old = cmpxchg(nb->owners + idx, NULL, event);
+ else if (nb->owners[idx] == event)
+ /* event already present */
+ old = event;
+ else
+ continue;
+
+ if (old && old != event)
+ continue;
+
+ /* reassign to this slot */
+ if (new != -1)
+ cmpxchg(nb->owners + new, event, NULL);
+ new = idx;
+
+ /* already present, reuse */
+ if (old == event)
+ break;
+ }
+
+ if (new == -1)
+ return &emptyconstraint;
+
+ return &nb->event_constraints[new];
+}
+
+static struct amd_nb *amd_alloc_nb(int cpu)
+{
+ struct amd_nb *nb;
+ int i;
+
+ nb = kzalloc_node(sizeof(struct amd_nb), GFP_KERNEL, cpu_to_node(cpu));
+ if (!nb)
+ return NULL;
+
+ nb->nb_id = -1;
+
+ /*
+ * initialize all possible NB constraints
+ */
+ for (i = 0; i < x86_pmu.num_counters; i++) {
+ __set_bit(i, nb->event_constraints[i].idxmsk);
+ nb->event_constraints[i].weight = 1;
+ }
+ return nb;
+}
+
+typedef void (amd_pmu_branch_reset_t)(void);
+DEFINE_STATIC_CALL_NULL(amd_pmu_branch_reset, amd_pmu_branch_reset_t);
+
+static void amd_pmu_cpu_reset(int cpu)
+{
+ if (x86_pmu.lbr_nr)
+ static_call(amd_pmu_branch_reset)();
+
+ if (x86_pmu.version < 2)
+ return;
+
+ /* Clear enable bits i.e. PerfCntrGlobalCtl.PerfCntrEn */
+ wrmsrl(MSR_AMD64_PERF_CNTR_GLOBAL_CTL, 0);
+
+ /* Clear overflow bits i.e. PerfCntrGLobalStatus.PerfCntrOvfl */
+ wrmsrl(MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_CLR, amd_pmu_global_cntr_mask);
+}
+
+static int amd_pmu_cpu_prepare(int cpu)
+{
+ struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+
+ cpuc->lbr_sel = kzalloc_node(sizeof(struct er_account), GFP_KERNEL,
+ cpu_to_node(cpu));
+ if (!cpuc->lbr_sel)
+ return -ENOMEM;
+
+ WARN_ON_ONCE(cpuc->amd_nb);
+
+ if (!x86_pmu.amd_nb_constraints)
+ return 0;
+
+ cpuc->amd_nb = amd_alloc_nb(cpu);
+ if (cpuc->amd_nb)
+ return 0;
+
+ kfree(cpuc->lbr_sel);
+ cpuc->lbr_sel = NULL;
+
+ return -ENOMEM;
+}
+
+static void amd_pmu_cpu_starting(int cpu)
+{
+ struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+ void **onln = &cpuc->kfree_on_online[X86_PERF_KFREE_SHARED];
+ struct amd_nb *nb;
+ int i, nb_id;
+
+ cpuc->perf_ctr_virt_mask = AMD64_EVENTSEL_HOSTONLY;
+
+ if (!x86_pmu.amd_nb_constraints)
+ return;
+
+ nb_id = topology_die_id(cpu);
+ WARN_ON_ONCE(nb_id == BAD_APICID);
+
+ for_each_online_cpu(i) {
+ nb = per_cpu(cpu_hw_events, i).amd_nb;
+ if (WARN_ON_ONCE(!nb))
+ continue;
+
+ if (nb->nb_id == nb_id) {
+ *onln = cpuc->amd_nb;
+ cpuc->amd_nb = nb;
+ break;
+ }
+ }
+
+ cpuc->amd_nb->nb_id = nb_id;
+ cpuc->amd_nb->refcnt++;
+
+ amd_pmu_cpu_reset(cpu);
+}
+
+static void amd_pmu_cpu_dead(int cpu)
+{
+ struct cpu_hw_events *cpuhw = &per_cpu(cpu_hw_events, cpu);
+
+ kfree(cpuhw->lbr_sel);
+ cpuhw->lbr_sel = NULL;
+
+ if (!x86_pmu.amd_nb_constraints)
+ return;
+
+ if (cpuhw->amd_nb) {
+ struct amd_nb *nb = cpuhw->amd_nb;
+
+ if (nb->nb_id == -1 || --nb->refcnt == 0)
+ kfree(nb);
+
+ cpuhw->amd_nb = NULL;
+ }
+
+ amd_pmu_cpu_reset(cpu);
+}
+
+static inline void amd_pmu_set_global_ctl(u64 ctl)
+{
+ wrmsrl(MSR_AMD64_PERF_CNTR_GLOBAL_CTL, ctl);
+}
+
+static inline u64 amd_pmu_get_global_status(void)
+{
+ u64 status;
+
+ /* PerfCntrGlobalStatus is read-only */
+ rdmsrl(MSR_AMD64_PERF_CNTR_GLOBAL_STATUS, status);
+
+ return status;
+}
+
+static inline void amd_pmu_ack_global_status(u64 status)
+{
+ /*
+ * PerfCntrGlobalStatus is read-only but an overflow acknowledgment
+ * mechanism exists; writing 1 to a bit in PerfCntrGlobalStatusClr
+ * clears the same bit in PerfCntrGlobalStatus
+ */
+
+ wrmsrl(MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_CLR, status);
+}
+
+static bool amd_pmu_test_overflow_topbit(int idx)
+{
+ u64 counter;
+
+ rdmsrl(x86_pmu_event_addr(idx), counter);
+
+ return !(counter & BIT_ULL(x86_pmu.cntval_bits - 1));
+}
+
+static bool amd_pmu_test_overflow_status(int idx)
+{
+ return amd_pmu_get_global_status() & BIT_ULL(idx);
+}
+
+DEFINE_STATIC_CALL(amd_pmu_test_overflow, amd_pmu_test_overflow_topbit);
+
+/*
+ * When a PMC counter overflows, an NMI is used to process the event and
+ * reset the counter. NMI latency can result in the counter being updated
+ * before the NMI can run, which can result in what appear to be spurious
+ * NMIs. This function is intended to wait for the NMI to run and reset
+ * the counter to avoid possible unhandled NMI messages.
+ */
+#define OVERFLOW_WAIT_COUNT 50
+
+static void amd_pmu_wait_on_overflow(int idx)
+{
+ unsigned int i;
+
+ /*
+ * Wait for the counter to be reset if it has overflowed. This loop
+ * should exit very, very quickly, but just in case, don't wait
+ * forever...
+ */
+ for (i = 0; i < OVERFLOW_WAIT_COUNT; i++) {
+ if (!static_call(amd_pmu_test_overflow)(idx))
+ break;
+
+ /* Might be in IRQ context, so can't sleep */
+ udelay(1);
+ }
+}
+
+static void amd_pmu_check_overflow(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int idx;
+
+ /*
+ * This shouldn't be called from NMI context, but add a safeguard here
+ * to return, since if we're in NMI context we can't wait for an NMI
+ * to reset an overflowed counter value.
+ */
+ if (in_nmi())
+ return;
+
+ /*
+ * Check each counter for overflow and wait for it to be reset by the
+ * NMI if it has overflowed. This relies on the fact that all active
+ * counters are always enabled when this function is called and
+ * ARCH_PERFMON_EVENTSEL_INT is always set.
+ */
+ for (idx = 0; idx < x86_pmu.num_counters; idx++) {
+ if (!test_bit(idx, cpuc->active_mask))
+ continue;
+
+ amd_pmu_wait_on_overflow(idx);
+ }
+}
+
+static void amd_pmu_enable_event(struct perf_event *event)
+{
+ x86_pmu_enable_event(event);
+}
+
+static void amd_pmu_enable_all(int added)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int idx;
+
+ amd_brs_enable_all();
+
+ for (idx = 0; idx < x86_pmu.num_counters; idx++) {
+ /* only activate events which are marked as active */
+ if (!test_bit(idx, cpuc->active_mask))
+ continue;
+
+ amd_pmu_enable_event(cpuc->events[idx]);
+ }
+}
+
+static void amd_pmu_v2_enable_event(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ /*
+ * Testing cpu_hw_events.enabled should be skipped in this case unlike
+ * in x86_pmu_enable_event().
+ *
+ * Since cpu_hw_events.enabled is set only after returning from
+ * x86_pmu_start(), the PMCs must be programmed and kept ready.
+ * Counting starts only after x86_pmu_enable_all() is called.
+ */
+ __x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE);
+}
+
+static __always_inline void amd_pmu_core_enable_all(void)
+{
+ amd_pmu_set_global_ctl(amd_pmu_global_cntr_mask);
+}
+
+static void amd_pmu_v2_enable_all(int added)
+{
+ amd_pmu_lbr_enable_all();
+ amd_pmu_core_enable_all();
+}
+
+static void amd_pmu_disable_event(struct perf_event *event)
+{
+ x86_pmu_disable_event(event);
+
+ /*
+ * This can be called from NMI context (via x86_pmu_stop). The counter
+ * may have overflowed, but either way, we'll never see it get reset
+ * by the NMI if we're already in the NMI. And the NMI latency support
+ * below will take care of any pending NMI that might have been
+ * generated by the overflow.
+ */
+ if (in_nmi())
+ return;
+
+ amd_pmu_wait_on_overflow(event->hw.idx);
+}
+
+static void amd_pmu_disable_all(void)
+{
+ amd_brs_disable_all();
+ x86_pmu_disable_all();
+ amd_pmu_check_overflow();
+}
+
+static __always_inline void amd_pmu_core_disable_all(void)
+{
+ amd_pmu_set_global_ctl(0);
+}
+
+static void amd_pmu_v2_disable_all(void)
+{
+ amd_pmu_core_disable_all();
+ amd_pmu_lbr_disable_all();
+ amd_pmu_check_overflow();
+}
+
+DEFINE_STATIC_CALL_NULL(amd_pmu_branch_add, *x86_pmu.add);
+
+static void amd_pmu_add_event(struct perf_event *event)
+{
+ if (needs_branch_stack(event))
+ static_call(amd_pmu_branch_add)(event);
+}
+
+DEFINE_STATIC_CALL_NULL(amd_pmu_branch_del, *x86_pmu.del);
+
+static void amd_pmu_del_event(struct perf_event *event)
+{
+ if (needs_branch_stack(event))
+ static_call(amd_pmu_branch_del)(event);
+}
+
+/*
+ * Because of NMI latency, if multiple PMC counters are active or other sources
+ * of NMIs are received, the perf NMI handler can handle one or more overflowed
+ * PMC counters outside of the NMI associated with the PMC overflow. If the NMI
+ * doesn't arrive at the LAPIC in time to become a pending NMI, then the kernel
+ * back-to-back NMI support won't be active. This PMC handler needs to take into
+ * account that this can occur, otherwise this could result in unknown NMI
+ * messages being issued. Examples of this is PMC overflow while in the NMI
+ * handler when multiple PMCs are active or PMC overflow while handling some
+ * other source of an NMI.
+ *
+ * Attempt to mitigate this by creating an NMI window in which un-handled NMIs
+ * received during this window will be claimed. This prevents extending the
+ * window past when it is possible that latent NMIs should be received. The
+ * per-CPU perf_nmi_tstamp will be set to the window end time whenever perf has
+ * handled a counter. When an un-handled NMI is received, it will be claimed
+ * only if arriving within that window.
+ */
+static inline int amd_pmu_adjust_nmi_window(int handled)
+{
+ /*
+ * If a counter was handled, record a timestamp such that un-handled
+ * NMIs will be claimed if arriving within that window.
+ */
+ if (handled) {
+ this_cpu_write(perf_nmi_tstamp, jiffies + perf_nmi_window);
+
+ return handled;
+ }
+
+ if (time_after(jiffies, this_cpu_read(perf_nmi_tstamp)))
+ return NMI_DONE;
+
+ return NMI_HANDLED;
+}
+
+static int amd_pmu_handle_irq(struct pt_regs *regs)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int handled;
+ int pmu_enabled;
+
+ /*
+ * Save the PMU state.
+ * It needs to be restored when leaving the handler.
+ */
+ pmu_enabled = cpuc->enabled;
+ cpuc->enabled = 0;
+
+ amd_brs_disable_all();
+
+ /* Drain BRS is in use (could be inactive) */
+ if (cpuc->lbr_users)
+ amd_brs_drain();
+
+ /* Process any counter overflows */
+ handled = x86_pmu_handle_irq(regs);
+
+ cpuc->enabled = pmu_enabled;
+ if (pmu_enabled)
+ amd_brs_enable_all();
+
+ return amd_pmu_adjust_nmi_window(handled);
+}
+
+static int amd_pmu_v2_handle_irq(struct pt_regs *regs)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct perf_sample_data data;
+ struct hw_perf_event *hwc;
+ struct perf_event *event;
+ int handled = 0, idx;
+ u64 status, mask;
+ bool pmu_enabled;
+
+ /*
+ * Save the PMU state as it needs to be restored when leaving the
+ * handler
+ */
+ pmu_enabled = cpuc->enabled;
+ cpuc->enabled = 0;
+
+ /* Stop counting but do not disable LBR */
+ amd_pmu_core_disable_all();
+
+ status = amd_pmu_get_global_status();
+
+ /* Check if any overflows are pending */
+ if (!status)
+ goto done;
+
+ /* Read branch records before unfreezing */
+ if (status & GLOBAL_STATUS_LBRS_FROZEN) {
+ amd_pmu_lbr_read();
+ status &= ~GLOBAL_STATUS_LBRS_FROZEN;
+ }
+
+ for (idx = 0; idx < x86_pmu.num_counters; idx++) {
+ if (!test_bit(idx, cpuc->active_mask))
+ continue;
+
+ event = cpuc->events[idx];
+ hwc = &event->hw;
+ x86_perf_event_update(event);
+ mask = BIT_ULL(idx);
+
+ if (!(status & mask))
+ continue;
+
+ /* Event overflow */
+ handled++;
+ status &= ~mask;
+ perf_sample_data_init(&data, 0, hwc->last_period);
+
+ if (!x86_perf_event_set_period(event))
+ continue;
+
+ if (has_branch_stack(event))
+ perf_sample_save_brstack(&data, event, &cpuc->lbr_stack);
+
+ if (perf_event_overflow(event, &data, regs))
+ x86_pmu_stop(event, 0);
+ }
+
+ /*
+ * It should never be the case that some overflows are not handled as
+ * the corresponding PMCs are expected to be inactive according to the
+ * active_mask
+ */
+ WARN_ON(status > 0);
+
+ /* Clear overflow and freeze bits */
+ amd_pmu_ack_global_status(~status);
+
+ /*
+ * Unmasking the LVTPC is not required as the Mask (M) bit of the LVT
+ * PMI entry is not set by the local APIC when a PMC overflow occurs
+ */
+ inc_irq_stat(apic_perf_irqs);
+
+done:
+ cpuc->enabled = pmu_enabled;
+
+ /* Resume counting only if PMU is active */
+ if (pmu_enabled)
+ amd_pmu_core_enable_all();
+
+ return amd_pmu_adjust_nmi_window(handled);
+}
+
+static struct event_constraint *
+amd_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ /*
+ * if not NB event or no NB, then no constraints
+ */
+ if (!(amd_has_nb(cpuc) && amd_is_nb_event(&event->hw)))
+ return &unconstrained;
+
+ return __amd_get_nb_event_constraints(cpuc, event, NULL);
+}
+
+static void amd_put_event_constraints(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ if (amd_has_nb(cpuc) && amd_is_nb_event(&event->hw))
+ __amd_put_nb_event_constraints(cpuc, event);
+}
+
+PMU_FORMAT_ATTR(event, "config:0-7,32-35");
+PMU_FORMAT_ATTR(umask, "config:8-15" );
+PMU_FORMAT_ATTR(edge, "config:18" );
+PMU_FORMAT_ATTR(inv, "config:23" );
+PMU_FORMAT_ATTR(cmask, "config:24-31" );
+
+static struct attribute *amd_format_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_cmask.attr,
+ NULL,
+};
+
+/* AMD Family 15h */
+
+#define AMD_EVENT_TYPE_MASK 0x000000F0ULL
+
+#define AMD_EVENT_FP 0x00000000ULL ... 0x00000010ULL
+#define AMD_EVENT_LS 0x00000020ULL ... 0x00000030ULL
+#define AMD_EVENT_DC 0x00000040ULL ... 0x00000050ULL
+#define AMD_EVENT_CU 0x00000060ULL ... 0x00000070ULL
+#define AMD_EVENT_IC_DE 0x00000080ULL ... 0x00000090ULL
+#define AMD_EVENT_EX_LS 0x000000C0ULL
+#define AMD_EVENT_DE 0x000000D0ULL
+#define AMD_EVENT_NB 0x000000E0ULL ... 0x000000F0ULL
+
+/*
+ * AMD family 15h event code/PMC mappings:
+ *
+ * type = event_code & 0x0F0:
+ *
+ * 0x000 FP PERF_CTL[5:3]
+ * 0x010 FP PERF_CTL[5:3]
+ * 0x020 LS PERF_CTL[5:0]
+ * 0x030 LS PERF_CTL[5:0]
+ * 0x040 DC PERF_CTL[5:0]
+ * 0x050 DC PERF_CTL[5:0]
+ * 0x060 CU PERF_CTL[2:0]
+ * 0x070 CU PERF_CTL[2:0]
+ * 0x080 IC/DE PERF_CTL[2:0]
+ * 0x090 IC/DE PERF_CTL[2:0]
+ * 0x0A0 ---
+ * 0x0B0 ---
+ * 0x0C0 EX/LS PERF_CTL[5:0]
+ * 0x0D0 DE PERF_CTL[2:0]
+ * 0x0E0 NB NB_PERF_CTL[3:0]
+ * 0x0F0 NB NB_PERF_CTL[3:0]
+ *
+ * Exceptions:
+ *
+ * 0x000 FP PERF_CTL[3], PERF_CTL[5:3] (*)
+ * 0x003 FP PERF_CTL[3]
+ * 0x004 FP PERF_CTL[3], PERF_CTL[5:3] (*)
+ * 0x00B FP PERF_CTL[3]
+ * 0x00D FP PERF_CTL[3]
+ * 0x023 DE PERF_CTL[2:0]
+ * 0x02D LS PERF_CTL[3]
+ * 0x02E LS PERF_CTL[3,0]
+ * 0x031 LS PERF_CTL[2:0] (**)
+ * 0x043 CU PERF_CTL[2:0]
+ * 0x045 CU PERF_CTL[2:0]
+ * 0x046 CU PERF_CTL[2:0]
+ * 0x054 CU PERF_CTL[2:0]
+ * 0x055 CU PERF_CTL[2:0]
+ * 0x08F IC PERF_CTL[0]
+ * 0x187 DE PERF_CTL[0]
+ * 0x188 DE PERF_CTL[0]
+ * 0x0DB EX PERF_CTL[5:0]
+ * 0x0DC LS PERF_CTL[5:0]
+ * 0x0DD LS PERF_CTL[5:0]
+ * 0x0DE LS PERF_CTL[5:0]
+ * 0x0DF LS PERF_CTL[5:0]
+ * 0x1C0 EX PERF_CTL[5:3]
+ * 0x1D6 EX PERF_CTL[5:0]
+ * 0x1D8 EX PERF_CTL[5:0]
+ *
+ * (*) depending on the umask all FPU counters may be used
+ * (**) only one unitmask enabled at a time
+ */
+
+static struct event_constraint amd_f15_PMC0 = EVENT_CONSTRAINT(0, 0x01, 0);
+static struct event_constraint amd_f15_PMC20 = EVENT_CONSTRAINT(0, 0x07, 0);
+static struct event_constraint amd_f15_PMC3 = EVENT_CONSTRAINT(0, 0x08, 0);
+static struct event_constraint amd_f15_PMC30 = EVENT_CONSTRAINT_OVERLAP(0, 0x09, 0);
+static struct event_constraint amd_f15_PMC50 = EVENT_CONSTRAINT(0, 0x3F, 0);
+static struct event_constraint amd_f15_PMC53 = EVENT_CONSTRAINT(0, 0x38, 0);
+
+static struct event_constraint *
+amd_get_event_constraints_f15h(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ unsigned int event_code = amd_get_event_code(hwc);
+
+ switch (event_code & AMD_EVENT_TYPE_MASK) {
+ case AMD_EVENT_FP:
+ switch (event_code) {
+ case 0x000:
+ if (!(hwc->config & 0x0000F000ULL))
+ break;
+ if (!(hwc->config & 0x00000F00ULL))
+ break;
+ return &amd_f15_PMC3;
+ case 0x004:
+ if (hweight_long(hwc->config & ARCH_PERFMON_EVENTSEL_UMASK) <= 1)
+ break;
+ return &amd_f15_PMC3;
+ case 0x003:
+ case 0x00B:
+ case 0x00D:
+ return &amd_f15_PMC3;
+ }
+ return &amd_f15_PMC53;
+ case AMD_EVENT_LS:
+ case AMD_EVENT_DC:
+ case AMD_EVENT_EX_LS:
+ switch (event_code) {
+ case 0x023:
+ case 0x043:
+ case 0x045:
+ case 0x046:
+ case 0x054:
+ case 0x055:
+ return &amd_f15_PMC20;
+ case 0x02D:
+ return &amd_f15_PMC3;
+ case 0x02E:
+ return &amd_f15_PMC30;
+ case 0x031:
+ if (hweight_long(hwc->config & ARCH_PERFMON_EVENTSEL_UMASK) <= 1)
+ return &amd_f15_PMC20;
+ return &emptyconstraint;
+ case 0x1C0:
+ return &amd_f15_PMC53;
+ default:
+ return &amd_f15_PMC50;
+ }
+ case AMD_EVENT_CU:
+ case AMD_EVENT_IC_DE:
+ case AMD_EVENT_DE:
+ switch (event_code) {
+ case 0x08F:
+ case 0x187:
+ case 0x188:
+ return &amd_f15_PMC0;
+ case 0x0DB ... 0x0DF:
+ case 0x1D6:
+ case 0x1D8:
+ return &amd_f15_PMC50;
+ default:
+ return &amd_f15_PMC20;
+ }
+ case AMD_EVENT_NB:
+ /* moved to uncore.c */
+ return &emptyconstraint;
+ default:
+ return &emptyconstraint;
+ }
+}
+
+static struct event_constraint pair_constraint;
+
+static struct event_constraint *
+amd_get_event_constraints_f17h(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (amd_is_pair_event_code(hwc))
+ return &pair_constraint;
+
+ return &unconstrained;
+}
+
+static void amd_put_event_constraints_f17h(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (is_counter_pair(hwc))
+ --cpuc->n_pair;
+}
+
+/*
+ * Because of the way BRS operates with an inactive and active phases, and
+ * the link to one counter, it is not possible to have two events using BRS
+ * scheduled at the same time. There would be an issue with enforcing the
+ * period of each one and given that the BRS saturates, it would not be possible
+ * to guarantee correlated content for all events. Therefore, in situations
+ * where multiple events want to use BRS, the kernel enforces mutual exclusion.
+ * Exclusion is enforced by chosing only one counter for events using BRS.
+ * The event scheduling logic will then automatically multiplex the
+ * events and ensure that at most one event is actively using BRS.
+ *
+ * The BRS counter could be any counter, but there is no constraint on Fam19h,
+ * therefore all counters are equal and thus we pick the first one: PMC0
+ */
+static struct event_constraint amd_fam19h_brs_cntr0_constraint =
+ EVENT_CONSTRAINT(0, 0x1, AMD64_RAW_EVENT_MASK);
+
+static struct event_constraint amd_fam19h_brs_pair_cntr0_constraint =
+ __EVENT_CONSTRAINT(0, 0x1, AMD64_RAW_EVENT_MASK, 1, 0, PERF_X86_EVENT_PAIR);
+
+static struct event_constraint *
+amd_get_event_constraints_f19h(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ bool has_brs = has_amd_brs(hwc);
+
+ /*
+ * In case BRS is used with an event requiring a counter pair,
+ * the kernel allows it but only on counter 0 & 1 to enforce
+ * multiplexing requiring to protect BRS in case of multiple
+ * BRS users
+ */
+ if (amd_is_pair_event_code(hwc)) {
+ return has_brs ? &amd_fam19h_brs_pair_cntr0_constraint
+ : &pair_constraint;
+ }
+
+ if (has_brs)
+ return &amd_fam19h_brs_cntr0_constraint;
+
+ return &unconstrained;
+}
+
+
+static ssize_t amd_event_sysfs_show(char *page, u64 config)
+{
+ u64 event = (config & ARCH_PERFMON_EVENTSEL_EVENT) |
+ (config & AMD64_EVENTSEL_EVENT) >> 24;
+
+ return x86_event_sysfs_show(page, config, event);
+}
+
+static void amd_pmu_limit_period(struct perf_event *event, s64 *left)
+{
+ /*
+ * Decrease period by the depth of the BRS feature to get the last N
+ * taken branches and approximate the desired period
+ */
+ if (has_branch_stack(event) && *left > x86_pmu.lbr_nr)
+ *left -= x86_pmu.lbr_nr;
+}
+
+static __initconst const struct x86_pmu amd_pmu = {
+ .name = "AMD",
+ .handle_irq = amd_pmu_handle_irq,
+ .disable_all = amd_pmu_disable_all,
+ .enable_all = amd_pmu_enable_all,
+ .enable = amd_pmu_enable_event,
+ .disable = amd_pmu_disable_event,
+ .hw_config = amd_pmu_hw_config,
+ .schedule_events = x86_schedule_events,
+ .eventsel = MSR_K7_EVNTSEL0,
+ .perfctr = MSR_K7_PERFCTR0,
+ .addr_offset = amd_pmu_addr_offset,
+ .event_map = amd_pmu_event_map,
+ .max_events = ARRAY_SIZE(amd_perfmon_event_map),
+ .num_counters = AMD64_NUM_COUNTERS,
+ .add = amd_pmu_add_event,
+ .del = amd_pmu_del_event,
+ .cntval_bits = 48,
+ .cntval_mask = (1ULL << 48) - 1,
+ .apic = 1,
+ /* use highest bit to detect overflow */
+ .max_period = (1ULL << 47) - 1,
+ .get_event_constraints = amd_get_event_constraints,
+ .put_event_constraints = amd_put_event_constraints,
+
+ .format_attrs = amd_format_attr,
+ .events_sysfs_show = amd_event_sysfs_show,
+
+ .cpu_prepare = amd_pmu_cpu_prepare,
+ .cpu_starting = amd_pmu_cpu_starting,
+ .cpu_dead = amd_pmu_cpu_dead,
+
+ .amd_nb_constraints = 1,
+};
+
+static ssize_t branches_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", x86_pmu.lbr_nr);
+}
+
+static DEVICE_ATTR_RO(branches);
+
+static struct attribute *amd_pmu_branches_attrs[] = {
+ &dev_attr_branches.attr,
+ NULL,
+};
+
+static umode_t
+amd_branches_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return x86_pmu.lbr_nr ? attr->mode : 0;
+}
+
+static struct attribute_group group_caps_amd_branches = {
+ .name = "caps",
+ .attrs = amd_pmu_branches_attrs,
+ .is_visible = amd_branches_is_visible,
+};
+
+#ifdef CONFIG_PERF_EVENTS_AMD_BRS
+
+EVENT_ATTR_STR(branch-brs, amd_branch_brs,
+ "event=" __stringify(AMD_FAM19H_BRS_EVENT)"\n");
+
+static struct attribute *amd_brs_events_attrs[] = {
+ EVENT_PTR(amd_branch_brs),
+ NULL,
+};
+
+static umode_t
+amd_brs_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return static_cpu_has(X86_FEATURE_BRS) && x86_pmu.lbr_nr ?
+ attr->mode : 0;
+}
+
+static struct attribute_group group_events_amd_brs = {
+ .name = "events",
+ .attrs = amd_brs_events_attrs,
+ .is_visible = amd_brs_is_visible,
+};
+
+#endif /* CONFIG_PERF_EVENTS_AMD_BRS */
+
+static const struct attribute_group *amd_attr_update[] = {
+ &group_caps_amd_branches,
+#ifdef CONFIG_PERF_EVENTS_AMD_BRS
+ &group_events_amd_brs,
+#endif
+ NULL,
+};
+
+static int __init amd_core_pmu_init(void)
+{
+ union cpuid_0x80000022_ebx ebx;
+ u64 even_ctr_mask = 0ULL;
+ int i;
+
+ if (!boot_cpu_has(X86_FEATURE_PERFCTR_CORE))
+ return 0;
+
+ /* Avoid calculating the value each time in the NMI handler */
+ perf_nmi_window = msecs_to_jiffies(100);
+
+ /*
+ * If core performance counter extensions exists, we must use
+ * MSR_F15H_PERF_CTL/MSR_F15H_PERF_CTR msrs. See also
+ * amd_pmu_addr_offset().
+ */
+ x86_pmu.eventsel = MSR_F15H_PERF_CTL;
+ x86_pmu.perfctr = MSR_F15H_PERF_CTR;
+ x86_pmu.num_counters = AMD64_NUM_COUNTERS_CORE;
+
+ /* Check for Performance Monitoring v2 support */
+ if (boot_cpu_has(X86_FEATURE_PERFMON_V2)) {
+ ebx.full = cpuid_ebx(EXT_PERFMON_DEBUG_FEATURES);
+
+ /* Update PMU version for later usage */
+ x86_pmu.version = 2;
+
+ /* Find the number of available Core PMCs */
+ x86_pmu.num_counters = ebx.split.num_core_pmc;
+
+ amd_pmu_global_cntr_mask = (1ULL << x86_pmu.num_counters) - 1;
+
+ /* Update PMC handling functions */
+ x86_pmu.enable_all = amd_pmu_v2_enable_all;
+ x86_pmu.disable_all = amd_pmu_v2_disable_all;
+ x86_pmu.enable = amd_pmu_v2_enable_event;
+ x86_pmu.handle_irq = amd_pmu_v2_handle_irq;
+ static_call_update(amd_pmu_test_overflow, amd_pmu_test_overflow_status);
+ }
+
+ /*
+ * AMD Core perfctr has separate MSRs for the NB events, see
+ * the amd/uncore.c driver.
+ */
+ x86_pmu.amd_nb_constraints = 0;
+
+ if (boot_cpu_data.x86 == 0x15) {
+ pr_cont("Fam15h ");
+ x86_pmu.get_event_constraints = amd_get_event_constraints_f15h;
+ }
+ if (boot_cpu_data.x86 >= 0x17) {
+ pr_cont("Fam17h+ ");
+ /*
+ * Family 17h and compatibles have constraints for Large
+ * Increment per Cycle events: they may only be assigned an
+ * even numbered counter that has a consecutive adjacent odd
+ * numbered counter following it.
+ */
+ for (i = 0; i < x86_pmu.num_counters - 1; i += 2)
+ even_ctr_mask |= BIT_ULL(i);
+
+ pair_constraint = (struct event_constraint)
+ __EVENT_CONSTRAINT(0, even_ctr_mask, 0,
+ x86_pmu.num_counters / 2, 0,
+ PERF_X86_EVENT_PAIR);
+
+ x86_pmu.get_event_constraints = amd_get_event_constraints_f17h;
+ x86_pmu.put_event_constraints = amd_put_event_constraints_f17h;
+ x86_pmu.perf_ctr_pair_en = AMD_MERGE_EVENT_ENABLE;
+ x86_pmu.flags |= PMU_FL_PAIR;
+ }
+
+ /* LBR and BRS are mutually exclusive features */
+ if (!amd_pmu_lbr_init()) {
+ /* LBR requires flushing on context switch */
+ x86_pmu.sched_task = amd_pmu_lbr_sched_task;
+ static_call_update(amd_pmu_branch_hw_config, amd_pmu_lbr_hw_config);
+ static_call_update(amd_pmu_branch_reset, amd_pmu_lbr_reset);
+ static_call_update(amd_pmu_branch_add, amd_pmu_lbr_add);
+ static_call_update(amd_pmu_branch_del, amd_pmu_lbr_del);
+ } else if (!amd_brs_init()) {
+ /*
+ * BRS requires special event constraints and flushing on ctxsw.
+ */
+ x86_pmu.get_event_constraints = amd_get_event_constraints_f19h;
+ x86_pmu.sched_task = amd_pmu_brs_sched_task;
+ x86_pmu.limit_period = amd_pmu_limit_period;
+
+ static_call_update(amd_pmu_branch_hw_config, amd_brs_hw_config);
+ static_call_update(amd_pmu_branch_reset, amd_brs_reset);
+ static_call_update(amd_pmu_branch_add, amd_pmu_brs_add);
+ static_call_update(amd_pmu_branch_del, amd_pmu_brs_del);
+
+ /*
+ * put_event_constraints callback same as Fam17h, set above
+ */
+
+ /* branch sampling must be stopped when entering low power */
+ amd_brs_lopwr_init();
+ }
+
+ x86_pmu.attr_update = amd_attr_update;
+
+ pr_cont("core perfctr, ");
+ return 0;
+}
+
+__init int amd_pmu_init(void)
+{
+ int ret;
+
+ /* Performance-monitoring supported from K7 and later: */
+ if (boot_cpu_data.x86 < 6)
+ return -ENODEV;
+
+ x86_pmu = amd_pmu;
+
+ ret = amd_core_pmu_init();
+ if (ret)
+ return ret;
+
+ if (num_possible_cpus() == 1) {
+ /*
+ * No point in allocating data structures to serialize
+ * against other CPUs, when there is only the one CPU.
+ */
+ x86_pmu.amd_nb_constraints = 0;
+ }
+
+ if (boot_cpu_data.x86 >= 0x17)
+ memcpy(hw_cache_event_ids, amd_hw_cache_event_ids_f17h, sizeof(hw_cache_event_ids));
+ else
+ memcpy(hw_cache_event_ids, amd_hw_cache_event_ids, sizeof(hw_cache_event_ids));
+
+ return 0;
+}
+
+static inline void amd_pmu_reload_virt(void)
+{
+ if (x86_pmu.version >= 2) {
+ /*
+ * Clear global enable bits, reprogram the PERF_CTL
+ * registers with updated perf_ctr_virt_mask and then
+ * set global enable bits once again
+ */
+ amd_pmu_v2_disable_all();
+ amd_pmu_enable_all(0);
+ amd_pmu_v2_enable_all(0);
+ return;
+ }
+
+ amd_pmu_disable_all();
+ amd_pmu_enable_all(0);
+}
+
+void amd_pmu_enable_virt(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ cpuc->perf_ctr_virt_mask = 0;
+
+ /* Reload all events */
+ amd_pmu_reload_virt();
+}
+EXPORT_SYMBOL_GPL(amd_pmu_enable_virt);
+
+void amd_pmu_disable_virt(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /*
+ * We only mask out the Host-only bit so that host-only counting works
+ * when SVM is disabled. If someone sets up a guest-only counter when
+ * SVM is disabled the Guest-only bits still gets set and the counter
+ * will not count anything.
+ */
+ cpuc->perf_ctr_virt_mask = AMD64_EVENTSEL_HOSTONLY;
+
+ /* Reload all events */
+ amd_pmu_reload_virt();
+}
+EXPORT_SYMBOL_GPL(amd_pmu_disable_virt);
diff --git a/arch/x86/events/amd/ibs.c b/arch/x86/events/amd/ibs.c
new file mode 100644
index 000000000000..64582954b5f6
--- /dev/null
+++ b/arch/x86/events/amd/ibs.c
@@ -0,0 +1,1539 @@
+/*
+ * Performance events - AMD IBS
+ *
+ * Copyright (C) 2011 Advanced Micro Devices, Inc., Robert Richter
+ *
+ * For licencing details see kernel-base/COPYING
+ */
+
+#include <linux/perf_event.h>
+#include <linux/init.h>
+#include <linux/export.h>
+#include <linux/pci.h>
+#include <linux/ptrace.h>
+#include <linux/syscore_ops.h>
+#include <linux/sched/clock.h>
+
+#include <asm/apic.h>
+
+#include "../perf_event.h"
+
+static u32 ibs_caps;
+
+#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_AMD)
+
+#include <linux/kprobes.h>
+#include <linux/hardirq.h>
+
+#include <asm/nmi.h>
+#include <asm/amd-ibs.h>
+
+#define IBS_FETCH_CONFIG_MASK (IBS_FETCH_RAND_EN | IBS_FETCH_MAX_CNT)
+#define IBS_OP_CONFIG_MASK IBS_OP_MAX_CNT
+
+
+/*
+ * IBS states:
+ *
+ * ENABLED; tracks the pmu::add(), pmu::del() state, when set the counter is taken
+ * and any further add()s must fail.
+ *
+ * STARTED/STOPPING/STOPPED; deal with pmu::start(), pmu::stop() state but are
+ * complicated by the fact that the IBS hardware can send late NMIs (ie. after
+ * we've cleared the EN bit).
+ *
+ * In order to consume these late NMIs we have the STOPPED state, any NMI that
+ * happens after we've cleared the EN state will clear this bit and report the
+ * NMI handled (this is fundamentally racy in the face or multiple NMI sources,
+ * someone else can consume our BIT and our NMI will go unhandled).
+ *
+ * And since we cannot set/clear this separate bit together with the EN bit,
+ * there are races; if we cleared STARTED early, an NMI could land in
+ * between clearing STARTED and clearing the EN bit (in fact multiple NMIs
+ * could happen if the period is small enough), and consume our STOPPED bit
+ * and trigger streams of unhandled NMIs.
+ *
+ * If, however, we clear STARTED late, an NMI can hit between clearing the
+ * EN bit and clearing STARTED, still see STARTED set and process the event.
+ * If this event will have the VALID bit clear, we bail properly, but this
+ * is not a given. With VALID set we can end up calling pmu::stop() again
+ * (the throttle logic) and trigger the WARNs in there.
+ *
+ * So what we do is set STOPPING before clearing EN to avoid the pmu::stop()
+ * nesting, and clear STARTED late, so that we have a well defined state over
+ * the clearing of the EN bit.
+ *
+ * XXX: we could probably be using !atomic bitops for all this.
+ */
+
+enum ibs_states {
+ IBS_ENABLED = 0,
+ IBS_STARTED = 1,
+ IBS_STOPPING = 2,
+ IBS_STOPPED = 3,
+
+ IBS_MAX_STATES,
+};
+
+struct cpu_perf_ibs {
+ struct perf_event *event;
+ unsigned long state[BITS_TO_LONGS(IBS_MAX_STATES)];
+};
+
+struct perf_ibs {
+ struct pmu pmu;
+ unsigned int msr;
+ u64 config_mask;
+ u64 cnt_mask;
+ u64 enable_mask;
+ u64 valid_mask;
+ u64 max_period;
+ unsigned long offset_mask[1];
+ int offset_max;
+ unsigned int fetch_count_reset_broken : 1;
+ unsigned int fetch_ignore_if_zero_rip : 1;
+ struct cpu_perf_ibs __percpu *pcpu;
+
+ u64 (*get_count)(u64 config);
+};
+
+static int
+perf_event_set_period(struct hw_perf_event *hwc, u64 min, u64 max, u64 *hw_period)
+{
+ s64 left = local64_read(&hwc->period_left);
+ s64 period = hwc->sample_period;
+ int overflow = 0;
+
+ /*
+ * If we are way outside a reasonable range then just skip forward:
+ */
+ if (unlikely(left <= -period)) {
+ left = period;
+ local64_set(&hwc->period_left, left);
+ hwc->last_period = period;
+ overflow = 1;
+ }
+
+ if (unlikely(left < (s64)min)) {
+ left += period;
+ local64_set(&hwc->period_left, left);
+ hwc->last_period = period;
+ overflow = 1;
+ }
+
+ /*
+ * If the hw period that triggers the sw overflow is too short
+ * we might hit the irq handler. This biases the results.
+ * Thus we shorten the next-to-last period and set the last
+ * period to the max period.
+ */
+ if (left > max) {
+ left -= max;
+ if (left > max)
+ left = max;
+ else if (left < min)
+ left = min;
+ }
+
+ *hw_period = (u64)left;
+
+ return overflow;
+}
+
+static int
+perf_event_try_update(struct perf_event *event, u64 new_raw_count, int width)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ int shift = 64 - width;
+ u64 prev_raw_count;
+ u64 delta;
+
+ /*
+ * Careful: an NMI might modify the previous event value.
+ *
+ * Our tactic to handle this is to first atomically read and
+ * exchange a new raw count - then add that new-prev delta
+ * count to the generic event atomically:
+ */
+ prev_raw_count = local64_read(&hwc->prev_count);
+ if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
+ new_raw_count) != prev_raw_count)
+ return 0;
+
+ /*
+ * Now we have the new raw value and have updated the prev
+ * timestamp already. We can now calculate the elapsed delta
+ * (event-)time and add that to the generic event.
+ *
+ * Careful, not all hw sign-extends above the physical width
+ * of the count.
+ */
+ delta = (new_raw_count << shift) - (prev_raw_count << shift);
+ delta >>= shift;
+
+ local64_add(delta, &event->count);
+ local64_sub(delta, &hwc->period_left);
+
+ return 1;
+}
+
+static struct perf_ibs perf_ibs_fetch;
+static struct perf_ibs perf_ibs_op;
+
+static struct perf_ibs *get_ibs_pmu(int type)
+{
+ if (perf_ibs_fetch.pmu.type == type)
+ return &perf_ibs_fetch;
+ if (perf_ibs_op.pmu.type == type)
+ return &perf_ibs_op;
+ return NULL;
+}
+
+/*
+ * Use IBS for precise event sampling:
+ *
+ * perf record -a -e cpu-cycles:p ... # use ibs op counting cycle count
+ * perf record -a -e r076:p ... # same as -e cpu-cycles:p
+ * perf record -a -e r0C1:p ... # use ibs op counting micro-ops
+ *
+ * IbsOpCntCtl (bit 19) of IBS Execution Control Register (IbsOpCtl,
+ * MSRC001_1033) is used to select either cycle or micro-ops counting
+ * mode.
+ *
+ * The rip of IBS samples has skid 0. Thus, IBS supports precise
+ * levels 1 and 2 and the PERF_EFLAGS_EXACT is set. In rare cases the
+ * rip is invalid when IBS was not able to record the rip correctly.
+ * We clear PERF_EFLAGS_EXACT and take the rip from pt_regs then.
+ *
+ */
+static int perf_ibs_precise_event(struct perf_event *event, u64 *config)
+{
+ switch (event->attr.precise_ip) {
+ case 0:
+ return -ENOENT;
+ case 1:
+ case 2:
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ switch (event->attr.type) {
+ case PERF_TYPE_HARDWARE:
+ switch (event->attr.config) {
+ case PERF_COUNT_HW_CPU_CYCLES:
+ *config = 0;
+ return 0;
+ }
+ break;
+ case PERF_TYPE_RAW:
+ switch (event->attr.config) {
+ case 0x0076:
+ *config = 0;
+ return 0;
+ case 0x00C1:
+ *config = IBS_OP_CNT_CTL;
+ return 0;
+ }
+ break;
+ default:
+ return -ENOENT;
+ }
+
+ return -EOPNOTSUPP;
+}
+
+static int perf_ibs_init(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct perf_ibs *perf_ibs;
+ u64 max_cnt, config;
+ int ret;
+
+ perf_ibs = get_ibs_pmu(event->attr.type);
+ if (perf_ibs) {
+ config = event->attr.config;
+ } else {
+ perf_ibs = &perf_ibs_op;
+ ret = perf_ibs_precise_event(event, &config);
+ if (ret)
+ return ret;
+ }
+
+ if (event->pmu != &perf_ibs->pmu)
+ return -ENOENT;
+
+ if (config & ~perf_ibs->config_mask)
+ return -EINVAL;
+
+ if (hwc->sample_period) {
+ if (config & perf_ibs->cnt_mask)
+ /* raw max_cnt may not be set */
+ return -EINVAL;
+ if (!event->attr.sample_freq && hwc->sample_period & 0x0f)
+ /*
+ * lower 4 bits can not be set in ibs max cnt,
+ * but allowing it in case we adjust the
+ * sample period to set a frequency.
+ */
+ return -EINVAL;
+ hwc->sample_period &= ~0x0FULL;
+ if (!hwc->sample_period)
+ hwc->sample_period = 0x10;
+ } else {
+ max_cnt = config & perf_ibs->cnt_mask;
+ config &= ~perf_ibs->cnt_mask;
+ event->attr.sample_period = max_cnt << 4;
+ hwc->sample_period = event->attr.sample_period;
+ }
+
+ if (!hwc->sample_period)
+ return -EINVAL;
+
+ /*
+ * If we modify hwc->sample_period, we also need to update
+ * hwc->last_period and hwc->period_left.
+ */
+ hwc->last_period = hwc->sample_period;
+ local64_set(&hwc->period_left, hwc->sample_period);
+
+ hwc->config_base = perf_ibs->msr;
+ hwc->config = config;
+
+ return 0;
+}
+
+static int perf_ibs_set_period(struct perf_ibs *perf_ibs,
+ struct hw_perf_event *hwc, u64 *period)
+{
+ int overflow;
+
+ /* ignore lower 4 bits in min count: */
+ overflow = perf_event_set_period(hwc, 1<<4, perf_ibs->max_period, period);
+ local64_set(&hwc->prev_count, 0);
+
+ return overflow;
+}
+
+static u64 get_ibs_fetch_count(u64 config)
+{
+ union ibs_fetch_ctl fetch_ctl = (union ibs_fetch_ctl)config;
+
+ return fetch_ctl.fetch_cnt << 4;
+}
+
+static u64 get_ibs_op_count(u64 config)
+{
+ union ibs_op_ctl op_ctl = (union ibs_op_ctl)config;
+ u64 count = 0;
+
+ /*
+ * If the internal 27-bit counter rolled over, the count is MaxCnt
+ * and the lower 7 bits of CurCnt are randomized.
+ * Otherwise CurCnt has the full 27-bit current counter value.
+ */
+ if (op_ctl.op_val) {
+ count = op_ctl.opmaxcnt << 4;
+ if (ibs_caps & IBS_CAPS_OPCNTEXT)
+ count += op_ctl.opmaxcnt_ext << 20;
+ } else if (ibs_caps & IBS_CAPS_RDWROPCNT) {
+ count = op_ctl.opcurcnt;
+ }
+
+ return count;
+}
+
+static void
+perf_ibs_event_update(struct perf_ibs *perf_ibs, struct perf_event *event,
+ u64 *config)
+{
+ u64 count = perf_ibs->get_count(*config);
+
+ /*
+ * Set width to 64 since we do not overflow on max width but
+ * instead on max count. In perf_ibs_set_period() we clear
+ * prev count manually on overflow.
+ */
+ while (!perf_event_try_update(event, count, 64)) {
+ rdmsrl(event->hw.config_base, *config);
+ count = perf_ibs->get_count(*config);
+ }
+}
+
+static inline void perf_ibs_enable_event(struct perf_ibs *perf_ibs,
+ struct hw_perf_event *hwc, u64 config)
+{
+ u64 tmp = hwc->config | config;
+
+ if (perf_ibs->fetch_count_reset_broken)
+ wrmsrl(hwc->config_base, tmp & ~perf_ibs->enable_mask);
+
+ wrmsrl(hwc->config_base, tmp | perf_ibs->enable_mask);
+}
+
+/*
+ * Erratum #420 Instruction-Based Sampling Engine May Generate
+ * Interrupt that Cannot Be Cleared:
+ *
+ * Must clear counter mask first, then clear the enable bit. See
+ * Revision Guide for AMD Family 10h Processors, Publication #41322.
+ */
+static inline void perf_ibs_disable_event(struct perf_ibs *perf_ibs,
+ struct hw_perf_event *hwc, u64 config)
+{
+ config &= ~perf_ibs->cnt_mask;
+ if (boot_cpu_data.x86 == 0x10)
+ wrmsrl(hwc->config_base, config);
+ config &= ~perf_ibs->enable_mask;
+ wrmsrl(hwc->config_base, config);
+}
+
+/*
+ * We cannot restore the ibs pmu state, so we always needs to update
+ * the event while stopping it and then reset the state when starting
+ * again. Thus, ignoring PERF_EF_RELOAD and PERF_EF_UPDATE flags in
+ * perf_ibs_start()/perf_ibs_stop() and instead always do it.
+ */
+static void perf_ibs_start(struct perf_event *event, int flags)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct perf_ibs *perf_ibs = container_of(event->pmu, struct perf_ibs, pmu);
+ struct cpu_perf_ibs *pcpu = this_cpu_ptr(perf_ibs->pcpu);
+ u64 period, config = 0;
+
+ if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED)))
+ return;
+
+ WARN_ON_ONCE(!(hwc->state & PERF_HES_UPTODATE));
+ hwc->state = 0;
+
+ perf_ibs_set_period(perf_ibs, hwc, &period);
+ if (perf_ibs == &perf_ibs_op && (ibs_caps & IBS_CAPS_OPCNTEXT)) {
+ config |= period & IBS_OP_MAX_CNT_EXT_MASK;
+ period &= ~IBS_OP_MAX_CNT_EXT_MASK;
+ }
+ config |= period >> 4;
+
+ /*
+ * Set STARTED before enabling the hardware, such that a subsequent NMI
+ * must observe it.
+ */
+ set_bit(IBS_STARTED, pcpu->state);
+ clear_bit(IBS_STOPPING, pcpu->state);
+ perf_ibs_enable_event(perf_ibs, hwc, config);
+
+ perf_event_update_userpage(event);
+}
+
+static void perf_ibs_stop(struct perf_event *event, int flags)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct perf_ibs *perf_ibs = container_of(event->pmu, struct perf_ibs, pmu);
+ struct cpu_perf_ibs *pcpu = this_cpu_ptr(perf_ibs->pcpu);
+ u64 config;
+ int stopping;
+
+ if (test_and_set_bit(IBS_STOPPING, pcpu->state))
+ return;
+
+ stopping = test_bit(IBS_STARTED, pcpu->state);
+
+ if (!stopping && (hwc->state & PERF_HES_UPTODATE))
+ return;
+
+ rdmsrl(hwc->config_base, config);
+
+ if (stopping) {
+ /*
+ * Set STOPPED before disabling the hardware, such that it
+ * must be visible to NMIs the moment we clear the EN bit,
+ * at which point we can generate an !VALID sample which
+ * we need to consume.
+ */
+ set_bit(IBS_STOPPED, pcpu->state);
+ perf_ibs_disable_event(perf_ibs, hwc, config);
+ /*
+ * Clear STARTED after disabling the hardware; if it were
+ * cleared before an NMI hitting after the clear but before
+ * clearing the EN bit might think it a spurious NMI and not
+ * handle it.
+ *
+ * Clearing it after, however, creates the problem of the NMI
+ * handler seeing STARTED but not having a valid sample.
+ */
+ clear_bit(IBS_STARTED, pcpu->state);
+ WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
+ hwc->state |= PERF_HES_STOPPED;
+ }
+
+ if (hwc->state & PERF_HES_UPTODATE)
+ return;
+
+ /*
+ * Clear valid bit to not count rollovers on update, rollovers
+ * are only updated in the irq handler.
+ */
+ config &= ~perf_ibs->valid_mask;
+
+ perf_ibs_event_update(perf_ibs, event, &config);
+ hwc->state |= PERF_HES_UPTODATE;
+}
+
+static int perf_ibs_add(struct perf_event *event, int flags)
+{
+ struct perf_ibs *perf_ibs = container_of(event->pmu, struct perf_ibs, pmu);
+ struct cpu_perf_ibs *pcpu = this_cpu_ptr(perf_ibs->pcpu);
+
+ if (test_and_set_bit(IBS_ENABLED, pcpu->state))
+ return -ENOSPC;
+
+ event->hw.state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+
+ pcpu->event = event;
+
+ if (flags & PERF_EF_START)
+ perf_ibs_start(event, PERF_EF_RELOAD);
+
+ return 0;
+}
+
+static void perf_ibs_del(struct perf_event *event, int flags)
+{
+ struct perf_ibs *perf_ibs = container_of(event->pmu, struct perf_ibs, pmu);
+ struct cpu_perf_ibs *pcpu = this_cpu_ptr(perf_ibs->pcpu);
+
+ if (!test_and_clear_bit(IBS_ENABLED, pcpu->state))
+ return;
+
+ perf_ibs_stop(event, PERF_EF_UPDATE);
+
+ pcpu->event = NULL;
+
+ perf_event_update_userpage(event);
+}
+
+static void perf_ibs_read(struct perf_event *event) { }
+
+/*
+ * We need to initialize with empty group if all attributes in the
+ * group are dynamic.
+ */
+static struct attribute *attrs_empty[] = {
+ NULL,
+};
+
+static struct attribute_group empty_format_group = {
+ .name = "format",
+ .attrs = attrs_empty,
+};
+
+static struct attribute_group empty_caps_group = {
+ .name = "caps",
+ .attrs = attrs_empty,
+};
+
+static const struct attribute_group *empty_attr_groups[] = {
+ &empty_format_group,
+ &empty_caps_group,
+ NULL,
+};
+
+PMU_FORMAT_ATTR(rand_en, "config:57");
+PMU_FORMAT_ATTR(cnt_ctl, "config:19");
+PMU_EVENT_ATTR_STRING(l3missonly, fetch_l3missonly, "config:59");
+PMU_EVENT_ATTR_STRING(l3missonly, op_l3missonly, "config:16");
+PMU_EVENT_ATTR_STRING(zen4_ibs_extensions, zen4_ibs_extensions, "1");
+
+static umode_t
+zen4_ibs_extensions_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return ibs_caps & IBS_CAPS_ZEN4 ? attr->mode : 0;
+}
+
+static struct attribute *rand_en_attrs[] = {
+ &format_attr_rand_en.attr,
+ NULL,
+};
+
+static struct attribute *fetch_l3missonly_attrs[] = {
+ &fetch_l3missonly.attr.attr,
+ NULL,
+};
+
+static struct attribute *zen4_ibs_extensions_attrs[] = {
+ &zen4_ibs_extensions.attr.attr,
+ NULL,
+};
+
+static struct attribute_group group_rand_en = {
+ .name = "format",
+ .attrs = rand_en_attrs,
+};
+
+static struct attribute_group group_fetch_l3missonly = {
+ .name = "format",
+ .attrs = fetch_l3missonly_attrs,
+ .is_visible = zen4_ibs_extensions_is_visible,
+};
+
+static struct attribute_group group_zen4_ibs_extensions = {
+ .name = "caps",
+ .attrs = zen4_ibs_extensions_attrs,
+ .is_visible = zen4_ibs_extensions_is_visible,
+};
+
+static const struct attribute_group *fetch_attr_groups[] = {
+ &group_rand_en,
+ &empty_caps_group,
+ NULL,
+};
+
+static const struct attribute_group *fetch_attr_update[] = {
+ &group_fetch_l3missonly,
+ &group_zen4_ibs_extensions,
+ NULL,
+};
+
+static umode_t
+cnt_ctl_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return ibs_caps & IBS_CAPS_OPCNT ? attr->mode : 0;
+}
+
+static struct attribute *cnt_ctl_attrs[] = {
+ &format_attr_cnt_ctl.attr,
+ NULL,
+};
+
+static struct attribute *op_l3missonly_attrs[] = {
+ &op_l3missonly.attr.attr,
+ NULL,
+};
+
+static struct attribute_group group_cnt_ctl = {
+ .name = "format",
+ .attrs = cnt_ctl_attrs,
+ .is_visible = cnt_ctl_is_visible,
+};
+
+static struct attribute_group group_op_l3missonly = {
+ .name = "format",
+ .attrs = op_l3missonly_attrs,
+ .is_visible = zen4_ibs_extensions_is_visible,
+};
+
+static const struct attribute_group *op_attr_update[] = {
+ &group_cnt_ctl,
+ &group_op_l3missonly,
+ &group_zen4_ibs_extensions,
+ NULL,
+};
+
+static struct perf_ibs perf_ibs_fetch = {
+ .pmu = {
+ .task_ctx_nr = perf_hw_context,
+
+ .event_init = perf_ibs_init,
+ .add = perf_ibs_add,
+ .del = perf_ibs_del,
+ .start = perf_ibs_start,
+ .stop = perf_ibs_stop,
+ .read = perf_ibs_read,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
+ },
+ .msr = MSR_AMD64_IBSFETCHCTL,
+ .config_mask = IBS_FETCH_CONFIG_MASK,
+ .cnt_mask = IBS_FETCH_MAX_CNT,
+ .enable_mask = IBS_FETCH_ENABLE,
+ .valid_mask = IBS_FETCH_VAL,
+ .max_period = IBS_FETCH_MAX_CNT << 4,
+ .offset_mask = { MSR_AMD64_IBSFETCH_REG_MASK },
+ .offset_max = MSR_AMD64_IBSFETCH_REG_COUNT,
+
+ .get_count = get_ibs_fetch_count,
+};
+
+static struct perf_ibs perf_ibs_op = {
+ .pmu = {
+ .task_ctx_nr = perf_hw_context,
+
+ .event_init = perf_ibs_init,
+ .add = perf_ibs_add,
+ .del = perf_ibs_del,
+ .start = perf_ibs_start,
+ .stop = perf_ibs_stop,
+ .read = perf_ibs_read,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
+ },
+ .msr = MSR_AMD64_IBSOPCTL,
+ .config_mask = IBS_OP_CONFIG_MASK,
+ .cnt_mask = IBS_OP_MAX_CNT | IBS_OP_CUR_CNT |
+ IBS_OP_CUR_CNT_RAND,
+ .enable_mask = IBS_OP_ENABLE,
+ .valid_mask = IBS_OP_VAL,
+ .max_period = IBS_OP_MAX_CNT << 4,
+ .offset_mask = { MSR_AMD64_IBSOP_REG_MASK },
+ .offset_max = MSR_AMD64_IBSOP_REG_COUNT,
+
+ .get_count = get_ibs_op_count,
+};
+
+static void perf_ibs_get_mem_op(union ibs_op_data3 *op_data3,
+ struct perf_sample_data *data)
+{
+ union perf_mem_data_src *data_src = &data->data_src;
+
+ data_src->mem_op = PERF_MEM_OP_NA;
+
+ if (op_data3->ld_op)
+ data_src->mem_op = PERF_MEM_OP_LOAD;
+ else if (op_data3->st_op)
+ data_src->mem_op = PERF_MEM_OP_STORE;
+}
+
+/*
+ * Processors having CPUID_Fn8000001B_EAX[11] aka IBS_CAPS_ZEN4 has
+ * more fine granular DataSrc encodings. Others have coarse.
+ */
+static u8 perf_ibs_data_src(union ibs_op_data2 *op_data2)
+{
+ if (ibs_caps & IBS_CAPS_ZEN4)
+ return (op_data2->data_src_hi << 3) | op_data2->data_src_lo;
+
+ return op_data2->data_src_lo;
+}
+
+static void perf_ibs_get_mem_lvl(union ibs_op_data2 *op_data2,
+ union ibs_op_data3 *op_data3,
+ struct perf_sample_data *data)
+{
+ union perf_mem_data_src *data_src = &data->data_src;
+ u8 ibs_data_src = perf_ibs_data_src(op_data2);
+
+ data_src->mem_lvl = 0;
+
+ /*
+ * DcMiss, L2Miss, DataSrc, DcMissLat etc. are all invalid for Uncached
+ * memory accesses. So, check DcUcMemAcc bit early.
+ */
+ if (op_data3->dc_uc_mem_acc && ibs_data_src != IBS_DATA_SRC_EXT_IO) {
+ data_src->mem_lvl = PERF_MEM_LVL_UNC | PERF_MEM_LVL_HIT;
+ return;
+ }
+
+ /* L1 Hit */
+ if (op_data3->dc_miss == 0) {
+ data_src->mem_lvl = PERF_MEM_LVL_L1 | PERF_MEM_LVL_HIT;
+ return;
+ }
+
+ /* L2 Hit */
+ if (op_data3->l2_miss == 0) {
+ /* Erratum #1293 */
+ if (boot_cpu_data.x86 != 0x19 || boot_cpu_data.x86_model > 0xF ||
+ !(op_data3->sw_pf || op_data3->dc_miss_no_mab_alloc)) {
+ data_src->mem_lvl = PERF_MEM_LVL_L2 | PERF_MEM_LVL_HIT;
+ return;
+ }
+ }
+
+ /*
+ * OP_DATA2 is valid only for load ops. Skip all checks which
+ * uses OP_DATA2[DataSrc].
+ */
+ if (data_src->mem_op != PERF_MEM_OP_LOAD)
+ goto check_mab;
+
+ /* L3 Hit */
+ if (ibs_caps & IBS_CAPS_ZEN4) {
+ if (ibs_data_src == IBS_DATA_SRC_EXT_LOC_CACHE) {
+ data_src->mem_lvl = PERF_MEM_LVL_L3 | PERF_MEM_LVL_HIT;
+ return;
+ }
+ } else {
+ if (ibs_data_src == IBS_DATA_SRC_LOC_CACHE) {
+ data_src->mem_lvl = PERF_MEM_LVL_L3 | PERF_MEM_LVL_REM_CCE1 |
+ PERF_MEM_LVL_HIT;
+ return;
+ }
+ }
+
+ /* A peer cache in a near CCX */
+ if (ibs_caps & IBS_CAPS_ZEN4 &&
+ ibs_data_src == IBS_DATA_SRC_EXT_NEAR_CCX_CACHE) {
+ data_src->mem_lvl = PERF_MEM_LVL_REM_CCE1 | PERF_MEM_LVL_HIT;
+ return;
+ }
+
+ /* A peer cache in a far CCX */
+ if (ibs_caps & IBS_CAPS_ZEN4) {
+ if (ibs_data_src == IBS_DATA_SRC_EXT_FAR_CCX_CACHE) {
+ data_src->mem_lvl = PERF_MEM_LVL_REM_CCE2 | PERF_MEM_LVL_HIT;
+ return;
+ }
+ } else {
+ if (ibs_data_src == IBS_DATA_SRC_REM_CACHE) {
+ data_src->mem_lvl = PERF_MEM_LVL_REM_CCE2 | PERF_MEM_LVL_HIT;
+ return;
+ }
+ }
+
+ /* DRAM */
+ if (ibs_data_src == IBS_DATA_SRC_EXT_DRAM) {
+ if (op_data2->rmt_node == 0)
+ data_src->mem_lvl = PERF_MEM_LVL_LOC_RAM | PERF_MEM_LVL_HIT;
+ else
+ data_src->mem_lvl = PERF_MEM_LVL_REM_RAM1 | PERF_MEM_LVL_HIT;
+ return;
+ }
+
+ /* PMEM */
+ if (ibs_caps & IBS_CAPS_ZEN4 && ibs_data_src == IBS_DATA_SRC_EXT_PMEM) {
+ data_src->mem_lvl_num = PERF_MEM_LVLNUM_PMEM;
+ if (op_data2->rmt_node) {
+ data_src->mem_remote = PERF_MEM_REMOTE_REMOTE;
+ /* IBS doesn't provide Remote socket detail */
+ data_src->mem_hops = PERF_MEM_HOPS_1;
+ }
+ return;
+ }
+
+ /* Extension Memory */
+ if (ibs_caps & IBS_CAPS_ZEN4 &&
+ ibs_data_src == IBS_DATA_SRC_EXT_EXT_MEM) {
+ data_src->mem_lvl_num = PERF_MEM_LVLNUM_CXL;
+ if (op_data2->rmt_node) {
+ data_src->mem_remote = PERF_MEM_REMOTE_REMOTE;
+ /* IBS doesn't provide Remote socket detail */
+ data_src->mem_hops = PERF_MEM_HOPS_1;
+ }
+ return;
+ }
+
+ /* IO */
+ if (ibs_data_src == IBS_DATA_SRC_EXT_IO) {
+ data_src->mem_lvl = PERF_MEM_LVL_IO;
+ data_src->mem_lvl_num = PERF_MEM_LVLNUM_IO;
+ if (op_data2->rmt_node) {
+ data_src->mem_remote = PERF_MEM_REMOTE_REMOTE;
+ /* IBS doesn't provide Remote socket detail */
+ data_src->mem_hops = PERF_MEM_HOPS_1;
+ }
+ return;
+ }
+
+check_mab:
+ /*
+ * MAB (Miss Address Buffer) Hit. MAB keeps track of outstanding
+ * DC misses. However, such data may come from any level in mem
+ * hierarchy. IBS provides detail about both MAB as well as actual
+ * DataSrc simultaneously. Prioritize DataSrc over MAB, i.e. set
+ * MAB only when IBS fails to provide DataSrc.
+ */
+ if (op_data3->dc_miss_no_mab_alloc) {
+ data_src->mem_lvl = PERF_MEM_LVL_LFB | PERF_MEM_LVL_HIT;
+ return;
+ }
+
+ data_src->mem_lvl = PERF_MEM_LVL_NA;
+}
+
+static bool perf_ibs_cache_hit_st_valid(void)
+{
+ /* 0: Uninitialized, 1: Valid, -1: Invalid */
+ static int cache_hit_st_valid;
+
+ if (unlikely(!cache_hit_st_valid)) {
+ if (boot_cpu_data.x86 == 0x19 &&
+ (boot_cpu_data.x86_model <= 0xF ||
+ (boot_cpu_data.x86_model >= 0x20 &&
+ boot_cpu_data.x86_model <= 0x5F))) {
+ cache_hit_st_valid = -1;
+ } else {
+ cache_hit_st_valid = 1;
+ }
+ }
+
+ return cache_hit_st_valid == 1;
+}
+
+static void perf_ibs_get_mem_snoop(union ibs_op_data2 *op_data2,
+ struct perf_sample_data *data)
+{
+ union perf_mem_data_src *data_src = &data->data_src;
+ u8 ibs_data_src;
+
+ data_src->mem_snoop = PERF_MEM_SNOOP_NA;
+
+ if (!perf_ibs_cache_hit_st_valid() ||
+ data_src->mem_op != PERF_MEM_OP_LOAD ||
+ data_src->mem_lvl & PERF_MEM_LVL_L1 ||
+ data_src->mem_lvl & PERF_MEM_LVL_L2 ||
+ op_data2->cache_hit_st)
+ return;
+
+ ibs_data_src = perf_ibs_data_src(op_data2);
+
+ if (ibs_caps & IBS_CAPS_ZEN4) {
+ if (ibs_data_src == IBS_DATA_SRC_EXT_LOC_CACHE ||
+ ibs_data_src == IBS_DATA_SRC_EXT_NEAR_CCX_CACHE ||
+ ibs_data_src == IBS_DATA_SRC_EXT_FAR_CCX_CACHE)
+ data_src->mem_snoop = PERF_MEM_SNOOP_HITM;
+ } else if (ibs_data_src == IBS_DATA_SRC_LOC_CACHE) {
+ data_src->mem_snoop = PERF_MEM_SNOOP_HITM;
+ }
+}
+
+static void perf_ibs_get_tlb_lvl(union ibs_op_data3 *op_data3,
+ struct perf_sample_data *data)
+{
+ union perf_mem_data_src *data_src = &data->data_src;
+
+ data_src->mem_dtlb = PERF_MEM_TLB_NA;
+
+ if (!op_data3->dc_lin_addr_valid)
+ return;
+
+ if (!op_data3->dc_l1tlb_miss) {
+ data_src->mem_dtlb = PERF_MEM_TLB_L1 | PERF_MEM_TLB_HIT;
+ return;
+ }
+
+ if (!op_data3->dc_l2tlb_miss) {
+ data_src->mem_dtlb = PERF_MEM_TLB_L2 | PERF_MEM_TLB_HIT;
+ return;
+ }
+
+ data_src->mem_dtlb = PERF_MEM_TLB_L2 | PERF_MEM_TLB_MISS;
+}
+
+static void perf_ibs_get_mem_lock(union ibs_op_data3 *op_data3,
+ struct perf_sample_data *data)
+{
+ union perf_mem_data_src *data_src = &data->data_src;
+
+ data_src->mem_lock = PERF_MEM_LOCK_NA;
+
+ if (op_data3->dc_locked_op)
+ data_src->mem_lock = PERF_MEM_LOCK_LOCKED;
+}
+
+#define ibs_op_msr_idx(msr) (msr - MSR_AMD64_IBSOPCTL)
+
+static void perf_ibs_get_data_src(struct perf_ibs_data *ibs_data,
+ struct perf_sample_data *data,
+ union ibs_op_data2 *op_data2,
+ union ibs_op_data3 *op_data3)
+{
+ perf_ibs_get_mem_lvl(op_data2, op_data3, data);
+ perf_ibs_get_mem_snoop(op_data2, data);
+ perf_ibs_get_tlb_lvl(op_data3, data);
+ perf_ibs_get_mem_lock(op_data3, data);
+}
+
+static __u64 perf_ibs_get_op_data2(struct perf_ibs_data *ibs_data,
+ union ibs_op_data3 *op_data3)
+{
+ __u64 val = ibs_data->regs[ibs_op_msr_idx(MSR_AMD64_IBSOPDATA2)];
+
+ /* Erratum #1293 */
+ if (boot_cpu_data.x86 == 0x19 && boot_cpu_data.x86_model <= 0xF &&
+ (op_data3->sw_pf || op_data3->dc_miss_no_mab_alloc)) {
+ /*
+ * OP_DATA2 has only two fields on Zen3: DataSrc and RmtNode.
+ * DataSrc=0 is 'No valid status' and RmtNode is invalid when
+ * DataSrc=0.
+ */
+ val = 0;
+ }
+ return val;
+}
+
+static void perf_ibs_parse_ld_st_data(__u64 sample_type,
+ struct perf_ibs_data *ibs_data,
+ struct perf_sample_data *data)
+{
+ union ibs_op_data3 op_data3;
+ union ibs_op_data2 op_data2;
+ union ibs_op_data op_data;
+
+ data->data_src.val = PERF_MEM_NA;
+ op_data3.val = ibs_data->regs[ibs_op_msr_idx(MSR_AMD64_IBSOPDATA3)];
+
+ perf_ibs_get_mem_op(&op_data3, data);
+ if (data->data_src.mem_op != PERF_MEM_OP_LOAD &&
+ data->data_src.mem_op != PERF_MEM_OP_STORE)
+ return;
+
+ op_data2.val = perf_ibs_get_op_data2(ibs_data, &op_data3);
+
+ if (sample_type & PERF_SAMPLE_DATA_SRC) {
+ perf_ibs_get_data_src(ibs_data, data, &op_data2, &op_data3);
+ data->sample_flags |= PERF_SAMPLE_DATA_SRC;
+ }
+
+ if (sample_type & PERF_SAMPLE_WEIGHT_TYPE && op_data3.dc_miss &&
+ data->data_src.mem_op == PERF_MEM_OP_LOAD) {
+ op_data.val = ibs_data->regs[ibs_op_msr_idx(MSR_AMD64_IBSOPDATA)];
+
+ if (sample_type & PERF_SAMPLE_WEIGHT_STRUCT) {
+ data->weight.var1_dw = op_data3.dc_miss_lat;
+ data->weight.var2_w = op_data.tag_to_ret_ctr;
+ } else if (sample_type & PERF_SAMPLE_WEIGHT) {
+ data->weight.full = op_data3.dc_miss_lat;
+ }
+ data->sample_flags |= PERF_SAMPLE_WEIGHT_TYPE;
+ }
+
+ if (sample_type & PERF_SAMPLE_ADDR && op_data3.dc_lin_addr_valid) {
+ data->addr = ibs_data->regs[ibs_op_msr_idx(MSR_AMD64_IBSDCLINAD)];
+ data->sample_flags |= PERF_SAMPLE_ADDR;
+ }
+
+ if (sample_type & PERF_SAMPLE_PHYS_ADDR && op_data3.dc_phy_addr_valid) {
+ data->phys_addr = ibs_data->regs[ibs_op_msr_idx(MSR_AMD64_IBSDCPHYSAD)];
+ data->sample_flags |= PERF_SAMPLE_PHYS_ADDR;
+ }
+}
+
+static int perf_ibs_get_offset_max(struct perf_ibs *perf_ibs, u64 sample_type,
+ int check_rip)
+{
+ if (sample_type & PERF_SAMPLE_RAW ||
+ (perf_ibs == &perf_ibs_op &&
+ (sample_type & PERF_SAMPLE_DATA_SRC ||
+ sample_type & PERF_SAMPLE_WEIGHT_TYPE ||
+ sample_type & PERF_SAMPLE_ADDR ||
+ sample_type & PERF_SAMPLE_PHYS_ADDR)))
+ return perf_ibs->offset_max;
+ else if (check_rip)
+ return 3;
+ return 1;
+}
+
+static int perf_ibs_handle_irq(struct perf_ibs *perf_ibs, struct pt_regs *iregs)
+{
+ struct cpu_perf_ibs *pcpu = this_cpu_ptr(perf_ibs->pcpu);
+ struct perf_event *event = pcpu->event;
+ struct hw_perf_event *hwc;
+ struct perf_sample_data data;
+ struct perf_raw_record raw;
+ struct pt_regs regs;
+ struct perf_ibs_data ibs_data;
+ int offset, size, check_rip, offset_max, throttle = 0;
+ unsigned int msr;
+ u64 *buf, *config, period, new_config = 0;
+
+ if (!test_bit(IBS_STARTED, pcpu->state)) {
+fail:
+ /*
+ * Catch spurious interrupts after stopping IBS: After
+ * disabling IBS there could be still incoming NMIs
+ * with samples that even have the valid bit cleared.
+ * Mark all this NMIs as handled.
+ */
+ if (test_and_clear_bit(IBS_STOPPED, pcpu->state))
+ return 1;
+
+ return 0;
+ }
+
+ if (WARN_ON_ONCE(!event))
+ goto fail;
+
+ hwc = &event->hw;
+ msr = hwc->config_base;
+ buf = ibs_data.regs;
+ rdmsrl(msr, *buf);
+ if (!(*buf++ & perf_ibs->valid_mask))
+ goto fail;
+
+ config = &ibs_data.regs[0];
+ perf_ibs_event_update(perf_ibs, event, config);
+ perf_sample_data_init(&data, 0, hwc->last_period);
+ if (!perf_ibs_set_period(perf_ibs, hwc, &period))
+ goto out; /* no sw counter overflow */
+
+ ibs_data.caps = ibs_caps;
+ size = 1;
+ offset = 1;
+ check_rip = (perf_ibs == &perf_ibs_op && (ibs_caps & IBS_CAPS_RIPINVALIDCHK));
+
+ offset_max = perf_ibs_get_offset_max(perf_ibs, event->attr.sample_type, check_rip);
+
+ do {
+ rdmsrl(msr + offset, *buf++);
+ size++;
+ offset = find_next_bit(perf_ibs->offset_mask,
+ perf_ibs->offset_max,
+ offset + 1);
+ } while (offset < offset_max);
+ /*
+ * Read IbsBrTarget, IbsOpData4, and IbsExtdCtl separately
+ * depending on their availability.
+ * Can't add to offset_max as they are staggered
+ */
+ if (event->attr.sample_type & PERF_SAMPLE_RAW) {
+ if (perf_ibs == &perf_ibs_op) {
+ if (ibs_caps & IBS_CAPS_BRNTRGT) {
+ rdmsrl(MSR_AMD64_IBSBRTARGET, *buf++);
+ size++;
+ }
+ if (ibs_caps & IBS_CAPS_OPDATA4) {
+ rdmsrl(MSR_AMD64_IBSOPDATA4, *buf++);
+ size++;
+ }
+ }
+ if (perf_ibs == &perf_ibs_fetch && (ibs_caps & IBS_CAPS_FETCHCTLEXTD)) {
+ rdmsrl(MSR_AMD64_ICIBSEXTDCTL, *buf++);
+ size++;
+ }
+ }
+ ibs_data.size = sizeof(u64) * size;
+
+ regs = *iregs;
+ if (check_rip && (ibs_data.regs[2] & IBS_RIP_INVALID)) {
+ regs.flags &= ~PERF_EFLAGS_EXACT;
+ } else {
+ /* Workaround for erratum #1197 */
+ if (perf_ibs->fetch_ignore_if_zero_rip && !(ibs_data.regs[1]))
+ goto out;
+
+ set_linear_ip(&regs, ibs_data.regs[1]);
+ regs.flags |= PERF_EFLAGS_EXACT;
+ }
+
+ if (event->attr.sample_type & PERF_SAMPLE_RAW) {
+ raw = (struct perf_raw_record){
+ .frag = {
+ .size = sizeof(u32) + ibs_data.size,
+ .data = ibs_data.data,
+ },
+ };
+ perf_sample_save_raw_data(&data, &raw);
+ }
+
+ if (perf_ibs == &perf_ibs_op)
+ perf_ibs_parse_ld_st_data(event->attr.sample_type, &ibs_data, &data);
+
+ /*
+ * rip recorded by IbsOpRip will not be consistent with rsp and rbp
+ * recorded as part of interrupt regs. Thus we need to use rip from
+ * interrupt regs while unwinding call stack.
+ */
+ if (event->attr.sample_type & PERF_SAMPLE_CALLCHAIN)
+ perf_sample_save_callchain(&data, event, iregs);
+
+ throttle = perf_event_overflow(event, &data, &regs);
+out:
+ if (throttle) {
+ perf_ibs_stop(event, 0);
+ } else {
+ if (perf_ibs == &perf_ibs_op) {
+ if (ibs_caps & IBS_CAPS_OPCNTEXT) {
+ new_config = period & IBS_OP_MAX_CNT_EXT_MASK;
+ period &= ~IBS_OP_MAX_CNT_EXT_MASK;
+ }
+ if ((ibs_caps & IBS_CAPS_RDWROPCNT) && (*config & IBS_OP_CNT_CTL))
+ new_config |= *config & IBS_OP_CUR_CNT_RAND;
+ }
+ new_config |= period >> 4;
+
+ perf_ibs_enable_event(perf_ibs, hwc, new_config);
+ }
+
+ perf_event_update_userpage(event);
+
+ return 1;
+}
+
+static int
+perf_ibs_nmi_handler(unsigned int cmd, struct pt_regs *regs)
+{
+ u64 stamp = sched_clock();
+ int handled = 0;
+
+ handled += perf_ibs_handle_irq(&perf_ibs_fetch, regs);
+ handled += perf_ibs_handle_irq(&perf_ibs_op, regs);
+
+ if (handled)
+ inc_irq_stat(apic_perf_irqs);
+
+ perf_sample_event_took(sched_clock() - stamp);
+
+ return handled;
+}
+NOKPROBE_SYMBOL(perf_ibs_nmi_handler);
+
+static __init int perf_ibs_pmu_init(struct perf_ibs *perf_ibs, char *name)
+{
+ struct cpu_perf_ibs __percpu *pcpu;
+ int ret;
+
+ pcpu = alloc_percpu(struct cpu_perf_ibs);
+ if (!pcpu)
+ return -ENOMEM;
+
+ perf_ibs->pcpu = pcpu;
+
+ ret = perf_pmu_register(&perf_ibs->pmu, name, -1);
+ if (ret) {
+ perf_ibs->pcpu = NULL;
+ free_percpu(pcpu);
+ }
+
+ return ret;
+}
+
+static __init int perf_ibs_fetch_init(void)
+{
+ /*
+ * Some chips fail to reset the fetch count when it is written; instead
+ * they need a 0-1 transition of IbsFetchEn.
+ */
+ if (boot_cpu_data.x86 >= 0x16 && boot_cpu_data.x86 <= 0x18)
+ perf_ibs_fetch.fetch_count_reset_broken = 1;
+
+ if (boot_cpu_data.x86 == 0x19 && boot_cpu_data.x86_model < 0x10)
+ perf_ibs_fetch.fetch_ignore_if_zero_rip = 1;
+
+ if (ibs_caps & IBS_CAPS_ZEN4)
+ perf_ibs_fetch.config_mask |= IBS_FETCH_L3MISSONLY;
+
+ perf_ibs_fetch.pmu.attr_groups = fetch_attr_groups;
+ perf_ibs_fetch.pmu.attr_update = fetch_attr_update;
+
+ return perf_ibs_pmu_init(&perf_ibs_fetch, "ibs_fetch");
+}
+
+static __init int perf_ibs_op_init(void)
+{
+ if (ibs_caps & IBS_CAPS_OPCNT)
+ perf_ibs_op.config_mask |= IBS_OP_CNT_CTL;
+
+ if (ibs_caps & IBS_CAPS_OPCNTEXT) {
+ perf_ibs_op.max_period |= IBS_OP_MAX_CNT_EXT_MASK;
+ perf_ibs_op.config_mask |= IBS_OP_MAX_CNT_EXT_MASK;
+ perf_ibs_op.cnt_mask |= IBS_OP_MAX_CNT_EXT_MASK;
+ }
+
+ if (ibs_caps & IBS_CAPS_ZEN4)
+ perf_ibs_op.config_mask |= IBS_OP_L3MISSONLY;
+
+ perf_ibs_op.pmu.attr_groups = empty_attr_groups;
+ perf_ibs_op.pmu.attr_update = op_attr_update;
+
+ return perf_ibs_pmu_init(&perf_ibs_op, "ibs_op");
+}
+
+static __init int perf_event_ibs_init(void)
+{
+ int ret;
+
+ ret = perf_ibs_fetch_init();
+ if (ret)
+ return ret;
+
+ ret = perf_ibs_op_init();
+ if (ret)
+ goto err_op;
+
+ ret = register_nmi_handler(NMI_LOCAL, perf_ibs_nmi_handler, 0, "perf_ibs");
+ if (ret)
+ goto err_nmi;
+
+ pr_info("perf: AMD IBS detected (0x%08x)\n", ibs_caps);
+ return 0;
+
+err_nmi:
+ perf_pmu_unregister(&perf_ibs_op.pmu);
+ free_percpu(perf_ibs_op.pcpu);
+ perf_ibs_op.pcpu = NULL;
+err_op:
+ perf_pmu_unregister(&perf_ibs_fetch.pmu);
+ free_percpu(perf_ibs_fetch.pcpu);
+ perf_ibs_fetch.pcpu = NULL;
+
+ return ret;
+}
+
+#else /* defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_AMD) */
+
+static __init int perf_event_ibs_init(void)
+{
+ return 0;
+}
+
+#endif
+
+/* IBS - apic initialization, for perf and oprofile */
+
+static __init u32 __get_ibs_caps(void)
+{
+ u32 caps;
+ unsigned int max_level;
+
+ if (!boot_cpu_has(X86_FEATURE_IBS))
+ return 0;
+
+ /* check IBS cpuid feature flags */
+ max_level = cpuid_eax(0x80000000);
+ if (max_level < IBS_CPUID_FEATURES)
+ return IBS_CAPS_DEFAULT;
+
+ caps = cpuid_eax(IBS_CPUID_FEATURES);
+ if (!(caps & IBS_CAPS_AVAIL))
+ /* cpuid flags not valid */
+ return IBS_CAPS_DEFAULT;
+
+ return caps;
+}
+
+u32 get_ibs_caps(void)
+{
+ return ibs_caps;
+}
+
+EXPORT_SYMBOL(get_ibs_caps);
+
+static inline int get_eilvt(int offset)
+{
+ return !setup_APIC_eilvt(offset, 0, APIC_EILVT_MSG_NMI, 1);
+}
+
+static inline int put_eilvt(int offset)
+{
+ return !setup_APIC_eilvt(offset, 0, 0, 1);
+}
+
+/*
+ * Check and reserve APIC extended interrupt LVT offset for IBS if available.
+ */
+static inline int ibs_eilvt_valid(void)
+{
+ int offset;
+ u64 val;
+ int valid = 0;
+
+ preempt_disable();
+
+ rdmsrl(MSR_AMD64_IBSCTL, val);
+ offset = val & IBSCTL_LVT_OFFSET_MASK;
+
+ if (!(val & IBSCTL_LVT_OFFSET_VALID)) {
+ pr_err(FW_BUG "cpu %d, invalid IBS interrupt offset %d (MSR%08X=0x%016llx)\n",
+ smp_processor_id(), offset, MSR_AMD64_IBSCTL, val);
+ goto out;
+ }
+
+ if (!get_eilvt(offset)) {
+ pr_err(FW_BUG "cpu %d, IBS interrupt offset %d not available (MSR%08X=0x%016llx)\n",
+ smp_processor_id(), offset, MSR_AMD64_IBSCTL, val);
+ goto out;
+ }
+
+ valid = 1;
+out:
+ preempt_enable();
+
+ return valid;
+}
+
+static int setup_ibs_ctl(int ibs_eilvt_off)
+{
+ struct pci_dev *cpu_cfg;
+ int nodes;
+ u32 value = 0;
+
+ nodes = 0;
+ cpu_cfg = NULL;
+ do {
+ cpu_cfg = pci_get_device(PCI_VENDOR_ID_AMD,
+ PCI_DEVICE_ID_AMD_10H_NB_MISC,
+ cpu_cfg);
+ if (!cpu_cfg)
+ break;
+ ++nodes;
+ pci_write_config_dword(cpu_cfg, IBSCTL, ibs_eilvt_off
+ | IBSCTL_LVT_OFFSET_VALID);
+ pci_read_config_dword(cpu_cfg, IBSCTL, &value);
+ if (value != (ibs_eilvt_off | IBSCTL_LVT_OFFSET_VALID)) {
+ pci_dev_put(cpu_cfg);
+ pr_debug("Failed to setup IBS LVT offset, IBSCTL = 0x%08x\n",
+ value);
+ return -EINVAL;
+ }
+ } while (1);
+
+ if (!nodes) {
+ pr_debug("No CPU node configured for IBS\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
+/*
+ * This runs only on the current cpu. We try to find an LVT offset and
+ * setup the local APIC. For this we must disable preemption. On
+ * success we initialize all nodes with this offset. This updates then
+ * the offset in the IBS_CTL per-node msr. The per-core APIC setup of
+ * the IBS interrupt vector is handled by perf_ibs_cpu_notifier that
+ * is using the new offset.
+ */
+static void force_ibs_eilvt_setup(void)
+{
+ int offset;
+ int ret;
+
+ preempt_disable();
+ /* find the next free available EILVT entry, skip offset 0 */
+ for (offset = 1; offset < APIC_EILVT_NR_MAX; offset++) {
+ if (get_eilvt(offset))
+ break;
+ }
+ preempt_enable();
+
+ if (offset == APIC_EILVT_NR_MAX) {
+ pr_debug("No EILVT entry available\n");
+ return;
+ }
+
+ ret = setup_ibs_ctl(offset);
+ if (ret)
+ goto out;
+
+ if (!ibs_eilvt_valid())
+ goto out;
+
+ pr_info("LVT offset %d assigned\n", offset);
+
+ return;
+out:
+ preempt_disable();
+ put_eilvt(offset);
+ preempt_enable();
+ return;
+}
+
+static void ibs_eilvt_setup(void)
+{
+ /*
+ * Force LVT offset assignment for family 10h: The offsets are
+ * not assigned by the BIOS for this family, so the OS is
+ * responsible for doing it. If the OS assignment fails, fall
+ * back to BIOS settings and try to setup this.
+ */
+ if (boot_cpu_data.x86 == 0x10)
+ force_ibs_eilvt_setup();
+}
+
+static inline int get_ibs_lvt_offset(void)
+{
+ u64 val;
+
+ rdmsrl(MSR_AMD64_IBSCTL, val);
+ if (!(val & IBSCTL_LVT_OFFSET_VALID))
+ return -EINVAL;
+
+ return val & IBSCTL_LVT_OFFSET_MASK;
+}
+
+static void setup_APIC_ibs(void)
+{
+ int offset;
+
+ offset = get_ibs_lvt_offset();
+ if (offset < 0)
+ goto failed;
+
+ if (!setup_APIC_eilvt(offset, 0, APIC_EILVT_MSG_NMI, 0))
+ return;
+failed:
+ pr_warn("perf: IBS APIC setup failed on cpu #%d\n",
+ smp_processor_id());
+}
+
+static void clear_APIC_ibs(void)
+{
+ int offset;
+
+ offset = get_ibs_lvt_offset();
+ if (offset >= 0)
+ setup_APIC_eilvt(offset, 0, APIC_EILVT_MSG_FIX, 1);
+}
+
+static int x86_pmu_amd_ibs_starting_cpu(unsigned int cpu)
+{
+ setup_APIC_ibs();
+ return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int perf_ibs_suspend(void)
+{
+ clear_APIC_ibs();
+ return 0;
+}
+
+static void perf_ibs_resume(void)
+{
+ ibs_eilvt_setup();
+ setup_APIC_ibs();
+}
+
+static struct syscore_ops perf_ibs_syscore_ops = {
+ .resume = perf_ibs_resume,
+ .suspend = perf_ibs_suspend,
+};
+
+static void perf_ibs_pm_init(void)
+{
+ register_syscore_ops(&perf_ibs_syscore_ops);
+}
+
+#else
+
+static inline void perf_ibs_pm_init(void) { }
+
+#endif
+
+static int x86_pmu_amd_ibs_dying_cpu(unsigned int cpu)
+{
+ clear_APIC_ibs();
+ return 0;
+}
+
+static __init int amd_ibs_init(void)
+{
+ u32 caps;
+
+ caps = __get_ibs_caps();
+ if (!caps)
+ return -ENODEV; /* ibs not supported by the cpu */
+
+ ibs_eilvt_setup();
+
+ if (!ibs_eilvt_valid())
+ return -EINVAL;
+
+ perf_ibs_pm_init();
+
+ ibs_caps = caps;
+ /* make ibs_caps visible to other cpus: */
+ smp_mb();
+ /*
+ * x86_pmu_amd_ibs_starting_cpu will be called from core on
+ * all online cpus.
+ */
+ cpuhp_setup_state(CPUHP_AP_PERF_X86_AMD_IBS_STARTING,
+ "perf/x86/amd/ibs:starting",
+ x86_pmu_amd_ibs_starting_cpu,
+ x86_pmu_amd_ibs_dying_cpu);
+
+ return perf_event_ibs_init();
+}
+
+/* Since we need the pci subsystem to init ibs we can't do this earlier: */
+device_initcall(amd_ibs_init);
diff --git a/arch/x86/events/amd/iommu.c b/arch/x86/events/amd/iommu.c
new file mode 100644
index 000000000000..b15f7b950d2e
--- /dev/null
+++ b/arch/x86/events/amd/iommu.c
@@ -0,0 +1,489 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2013 Advanced Micro Devices, Inc.
+ *
+ * Author: Steven Kinney <Steven.Kinney@amd.com>
+ * Author: Suravee Suthikulpanit <Suraveee.Suthikulpanit@amd.com>
+ *
+ * Perf: amd_iommu - AMD IOMMU Performance Counter PMU implementation
+ */
+
+#define pr_fmt(fmt) "perf/amd_iommu: " fmt
+
+#include <linux/perf_event.h>
+#include <linux/init.h>
+#include <linux/cpumask.h>
+#include <linux/slab.h>
+#include <linux/amd-iommu.h>
+
+#include "../perf_event.h"
+#include "iommu.h"
+
+/* iommu pmu conf masks */
+#define GET_CSOURCE(x) ((x)->conf & 0xFFULL)
+#define GET_DEVID(x) (((x)->conf >> 8) & 0xFFFFULL)
+#define GET_DOMID(x) (((x)->conf >> 24) & 0xFFFFULL)
+#define GET_PASID(x) (((x)->conf >> 40) & 0xFFFFFULL)
+
+/* iommu pmu conf1 masks */
+#define GET_DEVID_MASK(x) ((x)->conf1 & 0xFFFFULL)
+#define GET_DOMID_MASK(x) (((x)->conf1 >> 16) & 0xFFFFULL)
+#define GET_PASID_MASK(x) (((x)->conf1 >> 32) & 0xFFFFFULL)
+
+#define IOMMU_NAME_SIZE 16
+
+struct perf_amd_iommu {
+ struct list_head list;
+ struct pmu pmu;
+ struct amd_iommu *iommu;
+ char name[IOMMU_NAME_SIZE];
+ u8 max_banks;
+ u8 max_counters;
+ u64 cntr_assign_mask;
+ raw_spinlock_t lock;
+};
+
+static LIST_HEAD(perf_amd_iommu_list);
+
+/*---------------------------------------------
+ * sysfs format attributes
+ *---------------------------------------------*/
+PMU_FORMAT_ATTR(csource, "config:0-7");
+PMU_FORMAT_ATTR(devid, "config:8-23");
+PMU_FORMAT_ATTR(domid, "config:24-39");
+PMU_FORMAT_ATTR(pasid, "config:40-59");
+PMU_FORMAT_ATTR(devid_mask, "config1:0-15");
+PMU_FORMAT_ATTR(domid_mask, "config1:16-31");
+PMU_FORMAT_ATTR(pasid_mask, "config1:32-51");
+
+static struct attribute *iommu_format_attrs[] = {
+ &format_attr_csource.attr,
+ &format_attr_devid.attr,
+ &format_attr_pasid.attr,
+ &format_attr_domid.attr,
+ &format_attr_devid_mask.attr,
+ &format_attr_pasid_mask.attr,
+ &format_attr_domid_mask.attr,
+ NULL,
+};
+
+static struct attribute_group amd_iommu_format_group = {
+ .name = "format",
+ .attrs = iommu_format_attrs,
+};
+
+/*---------------------------------------------
+ * sysfs events attributes
+ *---------------------------------------------*/
+static struct attribute_group amd_iommu_events_group = {
+ .name = "events",
+};
+
+struct amd_iommu_event_desc {
+ struct device_attribute attr;
+ const char *event;
+};
+
+static ssize_t _iommu_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct amd_iommu_event_desc *event =
+ container_of(attr, struct amd_iommu_event_desc, attr);
+ return sprintf(buf, "%s\n", event->event);
+}
+
+#define AMD_IOMMU_EVENT_DESC(_name, _event) \
+{ \
+ .attr = __ATTR(_name, 0444, _iommu_event_show, NULL), \
+ .event = _event, \
+}
+
+static struct amd_iommu_event_desc amd_iommu_v2_event_descs[] = {
+ AMD_IOMMU_EVENT_DESC(mem_pass_untrans, "csource=0x01"),
+ AMD_IOMMU_EVENT_DESC(mem_pass_pretrans, "csource=0x02"),
+ AMD_IOMMU_EVENT_DESC(mem_pass_excl, "csource=0x03"),
+ AMD_IOMMU_EVENT_DESC(mem_target_abort, "csource=0x04"),
+ AMD_IOMMU_EVENT_DESC(mem_trans_total, "csource=0x05"),
+ AMD_IOMMU_EVENT_DESC(mem_iommu_tlb_pte_hit, "csource=0x06"),
+ AMD_IOMMU_EVENT_DESC(mem_iommu_tlb_pte_mis, "csource=0x07"),
+ AMD_IOMMU_EVENT_DESC(mem_iommu_tlb_pde_hit, "csource=0x08"),
+ AMD_IOMMU_EVENT_DESC(mem_iommu_tlb_pde_mis, "csource=0x09"),
+ AMD_IOMMU_EVENT_DESC(mem_dte_hit, "csource=0x0a"),
+ AMD_IOMMU_EVENT_DESC(mem_dte_mis, "csource=0x0b"),
+ AMD_IOMMU_EVENT_DESC(page_tbl_read_tot, "csource=0x0c"),
+ AMD_IOMMU_EVENT_DESC(page_tbl_read_nst, "csource=0x0d"),
+ AMD_IOMMU_EVENT_DESC(page_tbl_read_gst, "csource=0x0e"),
+ AMD_IOMMU_EVENT_DESC(int_dte_hit, "csource=0x0f"),
+ AMD_IOMMU_EVENT_DESC(int_dte_mis, "csource=0x10"),
+ AMD_IOMMU_EVENT_DESC(cmd_processed, "csource=0x11"),
+ AMD_IOMMU_EVENT_DESC(cmd_processed_inv, "csource=0x12"),
+ AMD_IOMMU_EVENT_DESC(tlb_inv, "csource=0x13"),
+ AMD_IOMMU_EVENT_DESC(ign_rd_wr_mmio_1ff8h, "csource=0x14"),
+ AMD_IOMMU_EVENT_DESC(vapic_int_non_guest, "csource=0x15"),
+ AMD_IOMMU_EVENT_DESC(vapic_int_guest, "csource=0x16"),
+ AMD_IOMMU_EVENT_DESC(smi_recv, "csource=0x17"),
+ AMD_IOMMU_EVENT_DESC(smi_blk, "csource=0x18"),
+ { /* end: all zeroes */ },
+};
+
+/*---------------------------------------------
+ * sysfs cpumask attributes
+ *---------------------------------------------*/
+static cpumask_t iommu_cpumask;
+
+static ssize_t _iommu_cpumask_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return cpumap_print_to_pagebuf(true, buf, &iommu_cpumask);
+}
+static DEVICE_ATTR(cpumask, S_IRUGO, _iommu_cpumask_show, NULL);
+
+static struct attribute *iommu_cpumask_attrs[] = {
+ &dev_attr_cpumask.attr,
+ NULL,
+};
+
+static struct attribute_group amd_iommu_cpumask_group = {
+ .attrs = iommu_cpumask_attrs,
+};
+
+/*---------------------------------------------*/
+
+static int get_next_avail_iommu_bnk_cntr(struct perf_event *event)
+{
+ struct perf_amd_iommu *piommu = container_of(event->pmu, struct perf_amd_iommu, pmu);
+ int max_cntrs = piommu->max_counters;
+ int max_banks = piommu->max_banks;
+ u32 shift, bank, cntr;
+ unsigned long flags;
+ int retval;
+
+ raw_spin_lock_irqsave(&piommu->lock, flags);
+
+ for (bank = 0; bank < max_banks; bank++) {
+ for (cntr = 0; cntr < max_cntrs; cntr++) {
+ shift = bank + (bank*3) + cntr;
+ if (piommu->cntr_assign_mask & BIT_ULL(shift)) {
+ continue;
+ } else {
+ piommu->cntr_assign_mask |= BIT_ULL(shift);
+ event->hw.iommu_bank = bank;
+ event->hw.iommu_cntr = cntr;
+ retval = 0;
+ goto out;
+ }
+ }
+ }
+ retval = -ENOSPC;
+out:
+ raw_spin_unlock_irqrestore(&piommu->lock, flags);
+ return retval;
+}
+
+static int clear_avail_iommu_bnk_cntr(struct perf_amd_iommu *perf_iommu,
+ u8 bank, u8 cntr)
+{
+ unsigned long flags;
+ int max_banks, max_cntrs;
+ int shift = 0;
+
+ max_banks = perf_iommu->max_banks;
+ max_cntrs = perf_iommu->max_counters;
+
+ if ((bank > max_banks) || (cntr > max_cntrs))
+ return -EINVAL;
+
+ shift = bank + cntr + (bank*3);
+
+ raw_spin_lock_irqsave(&perf_iommu->lock, flags);
+ perf_iommu->cntr_assign_mask &= ~(1ULL<<shift);
+ raw_spin_unlock_irqrestore(&perf_iommu->lock, flags);
+
+ return 0;
+}
+
+static int perf_iommu_event_init(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ /* test the event attr type check for PMU enumeration */
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ /*
+ * IOMMU counters are shared across all cores.
+ * Therefore, it does not support per-process mode.
+ * Also, it does not support event sampling mode.
+ */
+ if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK)
+ return -EINVAL;
+
+ if (event->cpu < 0)
+ return -EINVAL;
+
+ /* update the hw_perf_event struct with the iommu config data */
+ hwc->conf = event->attr.config;
+ hwc->conf1 = event->attr.config1;
+
+ return 0;
+}
+
+static inline struct amd_iommu *perf_event_2_iommu(struct perf_event *ev)
+{
+ return (container_of(ev->pmu, struct perf_amd_iommu, pmu))->iommu;
+}
+
+static void perf_iommu_enable_event(struct perf_event *ev)
+{
+ struct amd_iommu *iommu = perf_event_2_iommu(ev);
+ struct hw_perf_event *hwc = &ev->hw;
+ u8 bank = hwc->iommu_bank;
+ u8 cntr = hwc->iommu_cntr;
+ u64 reg = 0ULL;
+
+ reg = GET_CSOURCE(hwc);
+ amd_iommu_pc_set_reg(iommu, bank, cntr, IOMMU_PC_COUNTER_SRC_REG, &reg);
+
+ reg = GET_DEVID_MASK(hwc);
+ reg = GET_DEVID(hwc) | (reg << 32);
+ if (reg)
+ reg |= BIT(31);
+ amd_iommu_pc_set_reg(iommu, bank, cntr, IOMMU_PC_DEVID_MATCH_REG, &reg);
+
+ reg = GET_PASID_MASK(hwc);
+ reg = GET_PASID(hwc) | (reg << 32);
+ if (reg)
+ reg |= BIT(31);
+ amd_iommu_pc_set_reg(iommu, bank, cntr, IOMMU_PC_PASID_MATCH_REG, &reg);
+
+ reg = GET_DOMID_MASK(hwc);
+ reg = GET_DOMID(hwc) | (reg << 32);
+ if (reg)
+ reg |= BIT(31);
+ amd_iommu_pc_set_reg(iommu, bank, cntr, IOMMU_PC_DOMID_MATCH_REG, &reg);
+}
+
+static void perf_iommu_disable_event(struct perf_event *event)
+{
+ struct amd_iommu *iommu = perf_event_2_iommu(event);
+ struct hw_perf_event *hwc = &event->hw;
+ u64 reg = 0ULL;
+
+ amd_iommu_pc_set_reg(iommu, hwc->iommu_bank, hwc->iommu_cntr,
+ IOMMU_PC_COUNTER_SRC_REG, &reg);
+}
+
+static void perf_iommu_start(struct perf_event *event, int flags)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (WARN_ON_ONCE(!(hwc->state & PERF_HES_STOPPED)))
+ return;
+
+ WARN_ON_ONCE(!(hwc->state & PERF_HES_UPTODATE));
+ hwc->state = 0;
+
+ /*
+ * To account for power-gating, which prevents write to
+ * the counter, we need to enable the counter
+ * before setting up counter register.
+ */
+ perf_iommu_enable_event(event);
+
+ if (flags & PERF_EF_RELOAD) {
+ u64 count = 0;
+ struct amd_iommu *iommu = perf_event_2_iommu(event);
+
+ /*
+ * Since the IOMMU PMU only support counting mode,
+ * the counter always start with value zero.
+ */
+ amd_iommu_pc_set_reg(iommu, hwc->iommu_bank, hwc->iommu_cntr,
+ IOMMU_PC_COUNTER_REG, &count);
+ }
+
+ perf_event_update_userpage(event);
+}
+
+static void perf_iommu_read(struct perf_event *event)
+{
+ u64 count;
+ struct hw_perf_event *hwc = &event->hw;
+ struct amd_iommu *iommu = perf_event_2_iommu(event);
+
+ if (amd_iommu_pc_get_reg(iommu, hwc->iommu_bank, hwc->iommu_cntr,
+ IOMMU_PC_COUNTER_REG, &count))
+ return;
+
+ /* IOMMU pc counter register is only 48 bits */
+ count &= GENMASK_ULL(47, 0);
+
+ /*
+ * Since the counter always start with value zero,
+ * simply just accumulate the count for the event.
+ */
+ local64_add(count, &event->count);
+}
+
+static void perf_iommu_stop(struct perf_event *event, int flags)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (hwc->state & PERF_HES_UPTODATE)
+ return;
+
+ /*
+ * To account for power-gating, in which reading the counter would
+ * return zero, we need to read the register before disabling.
+ */
+ perf_iommu_read(event);
+ hwc->state |= PERF_HES_UPTODATE;
+
+ perf_iommu_disable_event(event);
+ WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
+ hwc->state |= PERF_HES_STOPPED;
+}
+
+static int perf_iommu_add(struct perf_event *event, int flags)
+{
+ int retval;
+
+ event->hw.state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+
+ /* request an iommu bank/counter */
+ retval = get_next_avail_iommu_bnk_cntr(event);
+ if (retval)
+ return retval;
+
+ if (flags & PERF_EF_START)
+ perf_iommu_start(event, PERF_EF_RELOAD);
+
+ return 0;
+}
+
+static void perf_iommu_del(struct perf_event *event, int flags)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct perf_amd_iommu *perf_iommu =
+ container_of(event->pmu, struct perf_amd_iommu, pmu);
+
+ perf_iommu_stop(event, PERF_EF_UPDATE);
+
+ /* clear the assigned iommu bank/counter */
+ clear_avail_iommu_bnk_cntr(perf_iommu,
+ hwc->iommu_bank, hwc->iommu_cntr);
+
+ perf_event_update_userpage(event);
+}
+
+static __init int _init_events_attrs(void)
+{
+ int i = 0, j;
+ struct attribute **attrs;
+
+ while (amd_iommu_v2_event_descs[i].attr.attr.name)
+ i++;
+
+ attrs = kcalloc(i + 1, sizeof(*attrs), GFP_KERNEL);
+ if (!attrs)
+ return -ENOMEM;
+
+ for (j = 0; j < i; j++)
+ attrs[j] = &amd_iommu_v2_event_descs[j].attr.attr;
+
+ amd_iommu_events_group.attrs = attrs;
+ return 0;
+}
+
+static const struct attribute_group *amd_iommu_attr_groups[] = {
+ &amd_iommu_format_group,
+ &amd_iommu_cpumask_group,
+ &amd_iommu_events_group,
+ NULL,
+};
+
+static const struct pmu iommu_pmu __initconst = {
+ .event_init = perf_iommu_event_init,
+ .add = perf_iommu_add,
+ .del = perf_iommu_del,
+ .start = perf_iommu_start,
+ .stop = perf_iommu_stop,
+ .read = perf_iommu_read,
+ .task_ctx_nr = perf_invalid_context,
+ .attr_groups = amd_iommu_attr_groups,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
+};
+
+static __init int init_one_iommu(unsigned int idx)
+{
+ struct perf_amd_iommu *perf_iommu;
+ int ret;
+
+ perf_iommu = kzalloc(sizeof(struct perf_amd_iommu), GFP_KERNEL);
+ if (!perf_iommu)
+ return -ENOMEM;
+
+ raw_spin_lock_init(&perf_iommu->lock);
+
+ perf_iommu->pmu = iommu_pmu;
+ perf_iommu->iommu = get_amd_iommu(idx);
+ perf_iommu->max_banks = amd_iommu_pc_get_max_banks(idx);
+ perf_iommu->max_counters = amd_iommu_pc_get_max_counters(idx);
+
+ if (!perf_iommu->iommu ||
+ !perf_iommu->max_banks ||
+ !perf_iommu->max_counters) {
+ kfree(perf_iommu);
+ return -EINVAL;
+ }
+
+ snprintf(perf_iommu->name, IOMMU_NAME_SIZE, "amd_iommu_%u", idx);
+
+ ret = perf_pmu_register(&perf_iommu->pmu, perf_iommu->name, -1);
+ if (!ret) {
+ pr_info("Detected AMD IOMMU #%d (%d banks, %d counters/bank).\n",
+ idx, perf_iommu->max_banks, perf_iommu->max_counters);
+ list_add_tail(&perf_iommu->list, &perf_amd_iommu_list);
+ } else {
+ pr_warn("Error initializing IOMMU %d.\n", idx);
+ kfree(perf_iommu);
+ }
+ return ret;
+}
+
+static __init int amd_iommu_pc_init(void)
+{
+ unsigned int i, cnt = 0;
+ int ret;
+
+ /* Make sure the IOMMU PC resource is available */
+ if (!amd_iommu_pc_supported())
+ return -ENODEV;
+
+ ret = _init_events_attrs();
+ if (ret)
+ return ret;
+
+ /*
+ * An IOMMU PMU is specific to an IOMMU, and can function independently.
+ * So we go through all IOMMUs and ignore the one that fails init
+ * unless all IOMMU are failing.
+ */
+ for (i = 0; i < amd_iommu_get_num_iommus(); i++) {
+ ret = init_one_iommu(i);
+ if (!ret)
+ cnt++;
+ }
+
+ if (!cnt) {
+ kfree(amd_iommu_events_group.attrs);
+ return -ENODEV;
+ }
+
+ /* Init cpumask attributes to only core 0 */
+ cpumask_set_cpu(0, &iommu_cpumask);
+ return 0;
+}
+
+device_initcall(amd_iommu_pc_init);
diff --git a/arch/x86/events/amd/iommu.h b/arch/x86/events/amd/iommu.h
new file mode 100644
index 000000000000..e6310c635c8b
--- /dev/null
+++ b/arch/x86/events/amd/iommu.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2013 Advanced Micro Devices, Inc.
+ *
+ * Author: Steven Kinney <Steven.Kinney@amd.com>
+ * Author: Suravee Suthikulpanit <Suraveee.Suthikulpanit@amd.com>
+ */
+
+#ifndef _PERF_EVENT_AMD_IOMMU_H_
+#define _PERF_EVENT_AMD_IOMMU_H_
+
+/* iommu pc mmio region register indexes */
+#define IOMMU_PC_COUNTER_REG 0x00
+#define IOMMU_PC_COUNTER_SRC_REG 0x08
+#define IOMMU_PC_PASID_MATCH_REG 0x10
+#define IOMMU_PC_DOMID_MATCH_REG 0x18
+#define IOMMU_PC_DEVID_MATCH_REG 0x20
+#define IOMMU_PC_COUNTER_REPORT_REG 0x28
+
+/* maximum specified bank/counters */
+#define PC_MAX_SPEC_BNKS 64
+#define PC_MAX_SPEC_CNTRS 16
+
+#endif /*_PERF_EVENT_AMD_IOMMU_H_*/
diff --git a/arch/x86/events/amd/lbr.c b/arch/x86/events/amd/lbr.c
new file mode 100644
index 000000000000..eb31f850841a
--- /dev/null
+++ b/arch/x86/events/amd/lbr.c
@@ -0,0 +1,439 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/perf_event.h>
+#include <asm/perf_event.h>
+
+#include "../perf_event.h"
+
+/* LBR Branch Select valid bits */
+#define LBR_SELECT_MASK 0x1ff
+
+/*
+ * LBR Branch Select filter bits which when set, ensures that the
+ * corresponding type of branches are not recorded
+ */
+#define LBR_SELECT_KERNEL 0 /* Branches ending in CPL = 0 */
+#define LBR_SELECT_USER 1 /* Branches ending in CPL > 0 */
+#define LBR_SELECT_JCC 2 /* Conditional branches */
+#define LBR_SELECT_CALL_NEAR_REL 3 /* Near relative calls */
+#define LBR_SELECT_CALL_NEAR_IND 4 /* Indirect relative calls */
+#define LBR_SELECT_RET_NEAR 5 /* Near returns */
+#define LBR_SELECT_JMP_NEAR_IND 6 /* Near indirect jumps (excl. calls and returns) */
+#define LBR_SELECT_JMP_NEAR_REL 7 /* Near relative jumps (excl. calls) */
+#define LBR_SELECT_FAR_BRANCH 8 /* Far branches */
+
+#define LBR_KERNEL BIT(LBR_SELECT_KERNEL)
+#define LBR_USER BIT(LBR_SELECT_USER)
+#define LBR_JCC BIT(LBR_SELECT_JCC)
+#define LBR_REL_CALL BIT(LBR_SELECT_CALL_NEAR_REL)
+#define LBR_IND_CALL BIT(LBR_SELECT_CALL_NEAR_IND)
+#define LBR_RETURN BIT(LBR_SELECT_RET_NEAR)
+#define LBR_REL_JMP BIT(LBR_SELECT_JMP_NEAR_REL)
+#define LBR_IND_JMP BIT(LBR_SELECT_JMP_NEAR_IND)
+#define LBR_FAR BIT(LBR_SELECT_FAR_BRANCH)
+#define LBR_NOT_SUPP -1 /* unsupported filter */
+#define LBR_IGNORE 0
+
+#define LBR_ANY \
+ (LBR_JCC | LBR_REL_CALL | LBR_IND_CALL | LBR_RETURN | \
+ LBR_REL_JMP | LBR_IND_JMP | LBR_FAR)
+
+struct branch_entry {
+ union {
+ struct {
+ u64 ip:58;
+ u64 ip_sign_ext:5;
+ u64 mispredict:1;
+ } split;
+ u64 full;
+ } from;
+
+ union {
+ struct {
+ u64 ip:58;
+ u64 ip_sign_ext:3;
+ u64 reserved:1;
+ u64 spec:1;
+ u64 valid:1;
+ } split;
+ u64 full;
+ } to;
+};
+
+static __always_inline void amd_pmu_lbr_set_from(unsigned int idx, u64 val)
+{
+ wrmsrl(MSR_AMD_SAMP_BR_FROM + idx * 2, val);
+}
+
+static __always_inline void amd_pmu_lbr_set_to(unsigned int idx, u64 val)
+{
+ wrmsrl(MSR_AMD_SAMP_BR_FROM + idx * 2 + 1, val);
+}
+
+static __always_inline u64 amd_pmu_lbr_get_from(unsigned int idx)
+{
+ u64 val;
+
+ rdmsrl(MSR_AMD_SAMP_BR_FROM + idx * 2, val);
+
+ return val;
+}
+
+static __always_inline u64 amd_pmu_lbr_get_to(unsigned int idx)
+{
+ u64 val;
+
+ rdmsrl(MSR_AMD_SAMP_BR_FROM + idx * 2 + 1, val);
+
+ return val;
+}
+
+static __always_inline u64 sign_ext_branch_ip(u64 ip)
+{
+ u32 shift = 64 - boot_cpu_data.x86_virt_bits;
+
+ return (u64)(((s64)ip << shift) >> shift);
+}
+
+static void amd_pmu_lbr_filter(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int br_sel = cpuc->br_sel, offset, type, i, j;
+ bool compress = false;
+ bool fused_only = false;
+ u64 from, to;
+
+ /* If sampling all branches, there is nothing to filter */
+ if (((br_sel & X86_BR_ALL) == X86_BR_ALL) &&
+ ((br_sel & X86_BR_TYPE_SAVE) != X86_BR_TYPE_SAVE))
+ fused_only = true;
+
+ for (i = 0; i < cpuc->lbr_stack.nr; i++) {
+ from = cpuc->lbr_entries[i].from;
+ to = cpuc->lbr_entries[i].to;
+ type = branch_type_fused(from, to, 0, &offset);
+
+ /*
+ * Adjust the branch from address in case of instruction
+ * fusion where it points to an instruction preceding the
+ * actual branch
+ */
+ if (offset) {
+ cpuc->lbr_entries[i].from += offset;
+ if (fused_only)
+ continue;
+ }
+
+ /* If type does not correspond, then discard */
+ if (type == X86_BR_NONE || (br_sel & type) != type) {
+ cpuc->lbr_entries[i].from = 0; /* mark invalid */
+ compress = true;
+ }
+
+ if ((br_sel & X86_BR_TYPE_SAVE) == X86_BR_TYPE_SAVE)
+ cpuc->lbr_entries[i].type = common_branch_type(type);
+ }
+
+ if (!compress)
+ return;
+
+ /* Remove all invalid entries */
+ for (i = 0; i < cpuc->lbr_stack.nr; ) {
+ if (!cpuc->lbr_entries[i].from) {
+ j = i;
+ while (++j < cpuc->lbr_stack.nr)
+ cpuc->lbr_entries[j - 1] = cpuc->lbr_entries[j];
+ cpuc->lbr_stack.nr--;
+ if (!cpuc->lbr_entries[i].from)
+ continue;
+ }
+ i++;
+ }
+}
+
+static const int lbr_spec_map[PERF_BR_SPEC_MAX] = {
+ PERF_BR_SPEC_NA,
+ PERF_BR_SPEC_WRONG_PATH,
+ PERF_BR_NON_SPEC_CORRECT_PATH,
+ PERF_BR_SPEC_CORRECT_PATH,
+};
+
+void amd_pmu_lbr_read(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct perf_branch_entry *br = cpuc->lbr_entries;
+ struct branch_entry entry;
+ int out = 0, idx, i;
+
+ if (!cpuc->lbr_users)
+ return;
+
+ for (i = 0; i < x86_pmu.lbr_nr; i++) {
+ entry.from.full = amd_pmu_lbr_get_from(i);
+ entry.to.full = amd_pmu_lbr_get_to(i);
+
+ /*
+ * Check if a branch has been logged; if valid = 0, spec = 0
+ * then no branch was recorded
+ */
+ if (!entry.to.split.valid && !entry.to.split.spec)
+ continue;
+
+ perf_clear_branch_entry_bitfields(br + out);
+
+ br[out].from = sign_ext_branch_ip(entry.from.split.ip);
+ br[out].to = sign_ext_branch_ip(entry.to.split.ip);
+ br[out].mispred = entry.from.split.mispredict;
+ br[out].predicted = !br[out].mispred;
+
+ /*
+ * Set branch speculation information using the status of
+ * the valid and spec bits.
+ *
+ * When valid = 0, spec = 0, no branch was recorded and the
+ * entry is discarded as seen above.
+ *
+ * When valid = 0, spec = 1, the recorded branch was
+ * speculative but took the wrong path.
+ *
+ * When valid = 1, spec = 0, the recorded branch was
+ * non-speculative but took the correct path.
+ *
+ * When valid = 1, spec = 1, the recorded branch was
+ * speculative and took the correct path
+ */
+ idx = (entry.to.split.valid << 1) | entry.to.split.spec;
+ br[out].spec = lbr_spec_map[idx];
+ out++;
+ }
+
+ cpuc->lbr_stack.nr = out;
+
+ /*
+ * Internal register renaming always ensures that LBR From[0] and
+ * LBR To[0] always represent the TOS
+ */
+ cpuc->lbr_stack.hw_idx = 0;
+
+ /* Perform further software filtering */
+ amd_pmu_lbr_filter();
+}
+
+static const int lbr_select_map[PERF_SAMPLE_BRANCH_MAX_SHIFT] = {
+ [PERF_SAMPLE_BRANCH_USER_SHIFT] = LBR_USER,
+ [PERF_SAMPLE_BRANCH_KERNEL_SHIFT] = LBR_KERNEL,
+ [PERF_SAMPLE_BRANCH_HV_SHIFT] = LBR_IGNORE,
+
+ [PERF_SAMPLE_BRANCH_ANY_SHIFT] = LBR_ANY,
+ [PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT] = LBR_REL_CALL | LBR_IND_CALL | LBR_FAR,
+ [PERF_SAMPLE_BRANCH_ANY_RETURN_SHIFT] = LBR_RETURN | LBR_FAR,
+ [PERF_SAMPLE_BRANCH_IND_CALL_SHIFT] = LBR_IND_CALL,
+ [PERF_SAMPLE_BRANCH_ABORT_TX_SHIFT] = LBR_NOT_SUPP,
+ [PERF_SAMPLE_BRANCH_IN_TX_SHIFT] = LBR_NOT_SUPP,
+ [PERF_SAMPLE_BRANCH_NO_TX_SHIFT] = LBR_NOT_SUPP,
+ [PERF_SAMPLE_BRANCH_COND_SHIFT] = LBR_JCC,
+
+ [PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT] = LBR_NOT_SUPP,
+ [PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT] = LBR_IND_JMP,
+ [PERF_SAMPLE_BRANCH_CALL_SHIFT] = LBR_REL_CALL,
+
+ [PERF_SAMPLE_BRANCH_NO_FLAGS_SHIFT] = LBR_NOT_SUPP,
+ [PERF_SAMPLE_BRANCH_NO_CYCLES_SHIFT] = LBR_NOT_SUPP,
+};
+
+static int amd_pmu_lbr_setup_filter(struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg = &event->hw.branch_reg;
+ u64 br_type = event->attr.branch_sample_type;
+ u64 mask = 0, v;
+ int i;
+
+ /* No LBR support */
+ if (!x86_pmu.lbr_nr)
+ return -EOPNOTSUPP;
+
+ if (br_type & PERF_SAMPLE_BRANCH_USER)
+ mask |= X86_BR_USER;
+
+ if (br_type & PERF_SAMPLE_BRANCH_KERNEL)
+ mask |= X86_BR_KERNEL;
+
+ /* Ignore BRANCH_HV here */
+
+ if (br_type & PERF_SAMPLE_BRANCH_ANY)
+ mask |= X86_BR_ANY;
+
+ if (br_type & PERF_SAMPLE_BRANCH_ANY_CALL)
+ mask |= X86_BR_ANY_CALL;
+
+ if (br_type & PERF_SAMPLE_BRANCH_ANY_RETURN)
+ mask |= X86_BR_RET | X86_BR_IRET | X86_BR_SYSRET;
+
+ if (br_type & PERF_SAMPLE_BRANCH_IND_CALL)
+ mask |= X86_BR_IND_CALL;
+
+ if (br_type & PERF_SAMPLE_BRANCH_COND)
+ mask |= X86_BR_JCC;
+
+ if (br_type & PERF_SAMPLE_BRANCH_IND_JUMP)
+ mask |= X86_BR_IND_JMP;
+
+ if (br_type & PERF_SAMPLE_BRANCH_CALL)
+ mask |= X86_BR_CALL | X86_BR_ZERO_CALL;
+
+ if (br_type & PERF_SAMPLE_BRANCH_TYPE_SAVE)
+ mask |= X86_BR_TYPE_SAVE;
+
+ reg->reg = mask;
+ mask = 0;
+
+ for (i = 0; i < PERF_SAMPLE_BRANCH_MAX_SHIFT; i++) {
+ if (!(br_type & BIT_ULL(i)))
+ continue;
+
+ v = lbr_select_map[i];
+ if (v == LBR_NOT_SUPP)
+ return -EOPNOTSUPP;
+
+ if (v != LBR_IGNORE)
+ mask |= v;
+ }
+
+ /* Filter bits operate in suppress mode */
+ reg->config = mask ^ LBR_SELECT_MASK;
+
+ return 0;
+}
+
+int amd_pmu_lbr_hw_config(struct perf_event *event)
+{
+ int ret = 0;
+
+ /* LBR is not recommended in counting mode */
+ if (!is_sampling_event(event))
+ return -EINVAL;
+
+ ret = amd_pmu_lbr_setup_filter(event);
+ if (!ret)
+ event->attach_state |= PERF_ATTACH_SCHED_CB;
+
+ return ret;
+}
+
+void amd_pmu_lbr_reset(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int i;
+
+ if (!x86_pmu.lbr_nr)
+ return;
+
+ /* Reset all branch records individually */
+ for (i = 0; i < x86_pmu.lbr_nr; i++) {
+ amd_pmu_lbr_set_from(i, 0);
+ amd_pmu_lbr_set_to(i, 0);
+ }
+
+ cpuc->last_task_ctx = NULL;
+ cpuc->last_log_id = 0;
+ wrmsrl(MSR_AMD64_LBR_SELECT, 0);
+}
+
+void amd_pmu_lbr_add(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event_extra *reg = &event->hw.branch_reg;
+
+ if (!x86_pmu.lbr_nr)
+ return;
+
+ if (has_branch_stack(event)) {
+ cpuc->lbr_select = 1;
+ cpuc->lbr_sel->config = reg->config;
+ cpuc->br_sel = reg->reg;
+ }
+
+ perf_sched_cb_inc(event->pmu);
+
+ if (!cpuc->lbr_users++ && !event->total_time_running)
+ amd_pmu_lbr_reset();
+}
+
+void amd_pmu_lbr_del(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (!x86_pmu.lbr_nr)
+ return;
+
+ if (has_branch_stack(event))
+ cpuc->lbr_select = 0;
+
+ cpuc->lbr_users--;
+ WARN_ON_ONCE(cpuc->lbr_users < 0);
+ perf_sched_cb_dec(event->pmu);
+}
+
+void amd_pmu_lbr_sched_task(struct perf_event_pmu_context *pmu_ctx, bool sched_in)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /*
+ * A context switch can flip the address space and LBR entries are
+ * not tagged with an identifier. Hence, branches cannot be resolved
+ * from the old address space and the LBR records should be wiped.
+ */
+ if (cpuc->lbr_users && sched_in)
+ amd_pmu_lbr_reset();
+}
+
+void amd_pmu_lbr_enable_all(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ u64 lbr_select, dbg_ctl, dbg_extn_cfg;
+
+ if (!cpuc->lbr_users || !x86_pmu.lbr_nr)
+ return;
+
+ /* Set hardware branch filter */
+ if (cpuc->lbr_select) {
+ lbr_select = cpuc->lbr_sel->config & LBR_SELECT_MASK;
+ wrmsrl(MSR_AMD64_LBR_SELECT, lbr_select);
+ }
+
+ rdmsrl(MSR_IA32_DEBUGCTLMSR, dbg_ctl);
+ rdmsrl(MSR_AMD_DBG_EXTN_CFG, dbg_extn_cfg);
+
+ wrmsrl(MSR_IA32_DEBUGCTLMSR, dbg_ctl | DEBUGCTLMSR_FREEZE_LBRS_ON_PMI);
+ wrmsrl(MSR_AMD_DBG_EXTN_CFG, dbg_extn_cfg | DBG_EXTN_CFG_LBRV2EN);
+}
+
+void amd_pmu_lbr_disable_all(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ u64 dbg_ctl, dbg_extn_cfg;
+
+ if (!cpuc->lbr_users || !x86_pmu.lbr_nr)
+ return;
+
+ rdmsrl(MSR_AMD_DBG_EXTN_CFG, dbg_extn_cfg);
+ rdmsrl(MSR_IA32_DEBUGCTLMSR, dbg_ctl);
+
+ wrmsrl(MSR_AMD_DBG_EXTN_CFG, dbg_extn_cfg & ~DBG_EXTN_CFG_LBRV2EN);
+ wrmsrl(MSR_IA32_DEBUGCTLMSR, dbg_ctl & ~DEBUGCTLMSR_FREEZE_LBRS_ON_PMI);
+}
+
+__init int amd_pmu_lbr_init(void)
+{
+ union cpuid_0x80000022_ebx ebx;
+
+ if (x86_pmu.version < 2 || !boot_cpu_has(X86_FEATURE_AMD_LBR_V2))
+ return -EOPNOTSUPP;
+
+ /* Set number of entries */
+ ebx.full = cpuid_ebx(EXT_PERFMON_DEBUG_FEATURES);
+ x86_pmu.lbr_nr = ebx.split.lbr_v2_stack_sz;
+
+ pr_cont("%d-deep LBR, ", x86_pmu.lbr_nr);
+
+ return 0;
+}
diff --git a/arch/x86/events/amd/power.c b/arch/x86/events/amd/power.c
new file mode 100644
index 000000000000..37d5b380516e
--- /dev/null
+++ b/arch/x86/events/amd/power.c
@@ -0,0 +1,305 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Performance events - AMD Processor Power Reporting Mechanism
+ *
+ * Copyright (C) 2016 Advanced Micro Devices, Inc.
+ *
+ * Author: Huang Rui <ray.huang@amd.com>
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/perf_event.h>
+#include <asm/cpu_device_id.h>
+#include "../perf_event.h"
+
+/* Event code: LSB 8 bits, passed in attr->config any other bit is reserved. */
+#define AMD_POWER_EVENT_MASK 0xFFULL
+
+/*
+ * Accumulated power status counters.
+ */
+#define AMD_POWER_EVENTSEL_PKG 1
+
+/*
+ * The ratio of compute unit power accumulator sample period to the
+ * PTSC period.
+ */
+static unsigned int cpu_pwr_sample_ratio;
+
+/* Maximum accumulated power of a compute unit. */
+static u64 max_cu_acc_power;
+
+static struct pmu pmu_class;
+
+/*
+ * Accumulated power represents the sum of each compute unit's (CU) power
+ * consumption. On any core of each CU we read the total accumulated power from
+ * MSR_F15H_CU_PWR_ACCUMULATOR. cpu_mask represents CPU bit map of all cores
+ * which are picked to measure the power for the CUs they belong to.
+ */
+static cpumask_t cpu_mask;
+
+static void event_update(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ u64 prev_pwr_acc, new_pwr_acc, prev_ptsc, new_ptsc;
+ u64 delta, tdelta;
+
+ prev_pwr_acc = hwc->pwr_acc;
+ prev_ptsc = hwc->ptsc;
+ rdmsrl(MSR_F15H_CU_PWR_ACCUMULATOR, new_pwr_acc);
+ rdmsrl(MSR_F15H_PTSC, new_ptsc);
+
+ /*
+ * Calculate the CU power consumption over a time period, the unit of
+ * final value (delta) is micro-Watts. Then add it to the event count.
+ */
+ if (new_pwr_acc < prev_pwr_acc) {
+ delta = max_cu_acc_power + new_pwr_acc;
+ delta -= prev_pwr_acc;
+ } else
+ delta = new_pwr_acc - prev_pwr_acc;
+
+ delta *= cpu_pwr_sample_ratio * 1000;
+ tdelta = new_ptsc - prev_ptsc;
+
+ do_div(delta, tdelta);
+ local64_add(delta, &event->count);
+}
+
+static void __pmu_event_start(struct perf_event *event)
+{
+ if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
+ return;
+
+ event->hw.state = 0;
+
+ rdmsrl(MSR_F15H_PTSC, event->hw.ptsc);
+ rdmsrl(MSR_F15H_CU_PWR_ACCUMULATOR, event->hw.pwr_acc);
+}
+
+static void pmu_event_start(struct perf_event *event, int mode)
+{
+ __pmu_event_start(event);
+}
+
+static void pmu_event_stop(struct perf_event *event, int mode)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ /* Mark event as deactivated and stopped. */
+ if (!(hwc->state & PERF_HES_STOPPED))
+ hwc->state |= PERF_HES_STOPPED;
+
+ /* Check if software counter update is necessary. */
+ if ((mode & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
+ /*
+ * Drain the remaining delta count out of an event
+ * that we are disabling:
+ */
+ event_update(event);
+ hwc->state |= PERF_HES_UPTODATE;
+ }
+}
+
+static int pmu_event_add(struct perf_event *event, int mode)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+
+ if (mode & PERF_EF_START)
+ __pmu_event_start(event);
+
+ return 0;
+}
+
+static void pmu_event_del(struct perf_event *event, int flags)
+{
+ pmu_event_stop(event, PERF_EF_UPDATE);
+}
+
+static int pmu_event_init(struct perf_event *event)
+{
+ u64 cfg = event->attr.config & AMD_POWER_EVENT_MASK;
+
+ /* Only look at AMD power events. */
+ if (event->attr.type != pmu_class.type)
+ return -ENOENT;
+
+ /* Unsupported modes and filters. */
+ if (event->attr.sample_period)
+ return -EINVAL;
+
+ if (cfg != AMD_POWER_EVENTSEL_PKG)
+ return -EINVAL;
+
+ return 0;
+}
+
+static void pmu_event_read(struct perf_event *event)
+{
+ event_update(event);
+}
+
+static ssize_t
+get_attr_cpumask(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ return cpumap_print_to_pagebuf(true, buf, &cpu_mask);
+}
+
+static DEVICE_ATTR(cpumask, S_IRUGO, get_attr_cpumask, NULL);
+
+static struct attribute *pmu_attrs[] = {
+ &dev_attr_cpumask.attr,
+ NULL,
+};
+
+static struct attribute_group pmu_attr_group = {
+ .attrs = pmu_attrs,
+};
+
+/*
+ * Currently it only supports to report the power of each
+ * processor/package.
+ */
+EVENT_ATTR_STR(power-pkg, power_pkg, "event=0x01");
+
+EVENT_ATTR_STR(power-pkg.unit, power_pkg_unit, "mWatts");
+
+/* Convert the count from micro-Watts to milli-Watts. */
+EVENT_ATTR_STR(power-pkg.scale, power_pkg_scale, "1.000000e-3");
+
+static struct attribute *events_attr[] = {
+ EVENT_PTR(power_pkg),
+ EVENT_PTR(power_pkg_unit),
+ EVENT_PTR(power_pkg_scale),
+ NULL,
+};
+
+static struct attribute_group pmu_events_group = {
+ .name = "events",
+ .attrs = events_attr,
+};
+
+PMU_FORMAT_ATTR(event, "config:0-7");
+
+static struct attribute *formats_attr[] = {
+ &format_attr_event.attr,
+ NULL,
+};
+
+static struct attribute_group pmu_format_group = {
+ .name = "format",
+ .attrs = formats_attr,
+};
+
+static const struct attribute_group *attr_groups[] = {
+ &pmu_attr_group,
+ &pmu_format_group,
+ &pmu_events_group,
+ NULL,
+};
+
+static struct pmu pmu_class = {
+ .attr_groups = attr_groups,
+ /* system-wide only */
+ .task_ctx_nr = perf_invalid_context,
+ .event_init = pmu_event_init,
+ .add = pmu_event_add,
+ .del = pmu_event_del,
+ .start = pmu_event_start,
+ .stop = pmu_event_stop,
+ .read = pmu_event_read,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
+ .module = THIS_MODULE,
+};
+
+static int power_cpu_exit(unsigned int cpu)
+{
+ int target;
+
+ if (!cpumask_test_and_clear_cpu(cpu, &cpu_mask))
+ return 0;
+
+ /*
+ * Find a new CPU on the same compute unit, if was set in cpumask
+ * and still some CPUs on compute unit. Then migrate event and
+ * context to new CPU.
+ */
+ target = cpumask_any_but(topology_sibling_cpumask(cpu), cpu);
+ if (target < nr_cpumask_bits) {
+ cpumask_set_cpu(target, &cpu_mask);
+ perf_pmu_migrate_context(&pmu_class, cpu, target);
+ }
+ return 0;
+}
+
+static int power_cpu_init(unsigned int cpu)
+{
+ int target;
+
+ /*
+ * 1) If any CPU is set at cpu_mask in the same compute unit, do
+ * nothing.
+ * 2) If no CPU is set at cpu_mask in the same compute unit,
+ * set current ONLINE CPU.
+ *
+ * Note: if there is a CPU aside of the new one already in the
+ * sibling mask, then it is also in cpu_mask.
+ */
+ target = cpumask_any_but(topology_sibling_cpumask(cpu), cpu);
+ if (target >= nr_cpumask_bits)
+ cpumask_set_cpu(cpu, &cpu_mask);
+ return 0;
+}
+
+static const struct x86_cpu_id cpu_match[] = {
+ X86_MATCH_VENDOR_FAM(AMD, 0x15, NULL),
+ {},
+};
+
+static int __init amd_power_pmu_init(void)
+{
+ int ret;
+
+ if (!x86_match_cpu(cpu_match))
+ return -ENODEV;
+
+ if (!boot_cpu_has(X86_FEATURE_ACC_POWER))
+ return -ENODEV;
+
+ cpu_pwr_sample_ratio = cpuid_ecx(0x80000007);
+
+ if (rdmsrl_safe(MSR_F15H_CU_MAX_PWR_ACCUMULATOR, &max_cu_acc_power)) {
+ pr_err("Failed to read max compute unit power accumulator MSR\n");
+ return -ENODEV;
+ }
+
+
+ cpuhp_setup_state(CPUHP_AP_PERF_X86_AMD_POWER_ONLINE,
+ "perf/x86/amd/power:online",
+ power_cpu_init, power_cpu_exit);
+
+ ret = perf_pmu_register(&pmu_class, "power", -1);
+ if (WARN_ON(ret)) {
+ pr_warn("AMD Power PMU registration failed\n");
+ return ret;
+ }
+
+ pr_info("AMD Power PMU detected\n");
+ return ret;
+}
+module_init(amd_power_pmu_init);
+
+static void __exit amd_power_pmu_exit(void)
+{
+ cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_AMD_POWER_ONLINE);
+ perf_pmu_unregister(&pmu_class);
+}
+module_exit(amd_power_pmu_exit);
+
+MODULE_AUTHOR("Huang Rui <ray.huang@amd.com>");
+MODULE_DESCRIPTION("AMD Processor Power Reporting Mechanism");
+MODULE_LICENSE("GPL v2");
diff --git a/arch/x86/events/amd/uncore.c b/arch/x86/events/amd/uncore.c
new file mode 100644
index 000000000000..83f15fe411b3
--- /dev/null
+++ b/arch/x86/events/amd/uncore.c
@@ -0,0 +1,789 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2013 Advanced Micro Devices, Inc.
+ *
+ * Author: Jacob Shin <jacob.shin@amd.com>
+ */
+
+#include <linux/perf_event.h>
+#include <linux/percpu.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/init.h>
+#include <linux/cpu.h>
+#include <linux/cpumask.h>
+#include <linux/cpufeature.h>
+#include <linux/smp.h>
+
+#include <asm/perf_event.h>
+#include <asm/msr.h>
+
+#define NUM_COUNTERS_NB 4
+#define NUM_COUNTERS_L2 4
+#define NUM_COUNTERS_L3 6
+
+#define RDPMC_BASE_NB 6
+#define RDPMC_BASE_LLC 10
+
+#define COUNTER_SHIFT 16
+
+#undef pr_fmt
+#define pr_fmt(fmt) "amd_uncore: " fmt
+
+static int pmu_version;
+static int num_counters_llc;
+static int num_counters_nb;
+static bool l3_mask;
+
+static HLIST_HEAD(uncore_unused_list);
+
+struct amd_uncore {
+ int id;
+ int refcnt;
+ int cpu;
+ int num_counters;
+ int rdpmc_base;
+ u32 msr_base;
+ cpumask_t *active_mask;
+ struct pmu *pmu;
+ struct perf_event **events;
+ struct hlist_node node;
+};
+
+static struct amd_uncore * __percpu *amd_uncore_nb;
+static struct amd_uncore * __percpu *amd_uncore_llc;
+
+static struct pmu amd_nb_pmu;
+static struct pmu amd_llc_pmu;
+
+static cpumask_t amd_nb_active_mask;
+static cpumask_t amd_llc_active_mask;
+
+static bool is_nb_event(struct perf_event *event)
+{
+ return event->pmu->type == amd_nb_pmu.type;
+}
+
+static bool is_llc_event(struct perf_event *event)
+{
+ return event->pmu->type == amd_llc_pmu.type;
+}
+
+static struct amd_uncore *event_to_amd_uncore(struct perf_event *event)
+{
+ if (is_nb_event(event) && amd_uncore_nb)
+ return *per_cpu_ptr(amd_uncore_nb, event->cpu);
+ else if (is_llc_event(event) && amd_uncore_llc)
+ return *per_cpu_ptr(amd_uncore_llc, event->cpu);
+
+ return NULL;
+}
+
+static void amd_uncore_read(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ u64 prev, new;
+ s64 delta;
+
+ /*
+ * since we do not enable counter overflow interrupts,
+ * we do not have to worry about prev_count changing on us
+ */
+
+ prev = local64_read(&hwc->prev_count);
+ rdpmcl(hwc->event_base_rdpmc, new);
+ local64_set(&hwc->prev_count, new);
+ delta = (new << COUNTER_SHIFT) - (prev << COUNTER_SHIFT);
+ delta >>= COUNTER_SHIFT;
+ local64_add(delta, &event->count);
+}
+
+static void amd_uncore_start(struct perf_event *event, int flags)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (flags & PERF_EF_RELOAD)
+ wrmsrl(hwc->event_base, (u64)local64_read(&hwc->prev_count));
+
+ hwc->state = 0;
+ wrmsrl(hwc->config_base, (hwc->config | ARCH_PERFMON_EVENTSEL_ENABLE));
+ perf_event_update_userpage(event);
+}
+
+static void amd_uncore_stop(struct perf_event *event, int flags)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ wrmsrl(hwc->config_base, hwc->config);
+ hwc->state |= PERF_HES_STOPPED;
+
+ if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
+ amd_uncore_read(event);
+ hwc->state |= PERF_HES_UPTODATE;
+ }
+}
+
+static int amd_uncore_add(struct perf_event *event, int flags)
+{
+ int i;
+ struct amd_uncore *uncore = event_to_amd_uncore(event);
+ struct hw_perf_event *hwc = &event->hw;
+
+ /* are we already assigned? */
+ if (hwc->idx != -1 && uncore->events[hwc->idx] == event)
+ goto out;
+
+ for (i = 0; i < uncore->num_counters; i++) {
+ if (uncore->events[i] == event) {
+ hwc->idx = i;
+ goto out;
+ }
+ }
+
+ /* if not, take the first available counter */
+ hwc->idx = -1;
+ for (i = 0; i < uncore->num_counters; i++) {
+ if (cmpxchg(&uncore->events[i], NULL, event) == NULL) {
+ hwc->idx = i;
+ break;
+ }
+ }
+
+out:
+ if (hwc->idx == -1)
+ return -EBUSY;
+
+ hwc->config_base = uncore->msr_base + (2 * hwc->idx);
+ hwc->event_base = uncore->msr_base + 1 + (2 * hwc->idx);
+ hwc->event_base_rdpmc = uncore->rdpmc_base + hwc->idx;
+ hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+
+ /*
+ * The first four DF counters are accessible via RDPMC index 6 to 9
+ * followed by the L3 counters from index 10 to 15. For processors
+ * with more than four DF counters, the DF RDPMC assignments become
+ * discontiguous as the additional counters are accessible starting
+ * from index 16.
+ */
+ if (is_nb_event(event) && hwc->idx >= NUM_COUNTERS_NB)
+ hwc->event_base_rdpmc += NUM_COUNTERS_L3;
+
+ if (flags & PERF_EF_START)
+ amd_uncore_start(event, PERF_EF_RELOAD);
+
+ return 0;
+}
+
+static void amd_uncore_del(struct perf_event *event, int flags)
+{
+ int i;
+ struct amd_uncore *uncore = event_to_amd_uncore(event);
+ struct hw_perf_event *hwc = &event->hw;
+
+ amd_uncore_stop(event, PERF_EF_UPDATE);
+
+ for (i = 0; i < uncore->num_counters; i++) {
+ if (cmpxchg(&uncore->events[i], event, NULL) == event)
+ break;
+ }
+
+ hwc->idx = -1;
+}
+
+/*
+ * Return a full thread and slice mask unless user
+ * has provided them
+ */
+static u64 l3_thread_slice_mask(u64 config)
+{
+ if (boot_cpu_data.x86 <= 0x18)
+ return ((config & AMD64_L3_SLICE_MASK) ? : AMD64_L3_SLICE_MASK) |
+ ((config & AMD64_L3_THREAD_MASK) ? : AMD64_L3_THREAD_MASK);
+
+ /*
+ * If the user doesn't specify a threadmask, they're not trying to
+ * count core 0, so we enable all cores & threads.
+ * We'll also assume that they want to count slice 0 if they specify
+ * a threadmask and leave sliceid and enallslices unpopulated.
+ */
+ if (!(config & AMD64_L3_F19H_THREAD_MASK))
+ return AMD64_L3_F19H_THREAD_MASK | AMD64_L3_EN_ALL_SLICES |
+ AMD64_L3_EN_ALL_CORES;
+
+ return config & (AMD64_L3_F19H_THREAD_MASK | AMD64_L3_SLICEID_MASK |
+ AMD64_L3_EN_ALL_CORES | AMD64_L3_EN_ALL_SLICES |
+ AMD64_L3_COREID_MASK);
+}
+
+static int amd_uncore_event_init(struct perf_event *event)
+{
+ struct amd_uncore *uncore;
+ struct hw_perf_event *hwc = &event->hw;
+ u64 event_mask = AMD64_RAW_EVENT_MASK_NB;
+
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ if (pmu_version >= 2 && is_nb_event(event))
+ event_mask = AMD64_PERFMON_V2_RAW_EVENT_MASK_NB;
+
+ /*
+ * NB and Last level cache counters (MSRs) are shared across all cores
+ * that share the same NB / Last level cache. On family 16h and below,
+ * Interrupts can be directed to a single target core, however, event
+ * counts generated by processes running on other cores cannot be masked
+ * out. So we do not support sampling and per-thread events via
+ * CAP_NO_INTERRUPT, and we do not enable counter overflow interrupts:
+ */
+ hwc->config = event->attr.config & event_mask;
+ hwc->idx = -1;
+
+ if (event->cpu < 0)
+ return -EINVAL;
+
+ /*
+ * SliceMask and ThreadMask need to be set for certain L3 events.
+ * For other events, the two fields do not affect the count.
+ */
+ if (l3_mask && is_llc_event(event))
+ hwc->config |= l3_thread_slice_mask(event->attr.config);
+
+ uncore = event_to_amd_uncore(event);
+ if (!uncore)
+ return -ENODEV;
+
+ /*
+ * since request can come in to any of the shared cores, we will remap
+ * to a single common cpu.
+ */
+ event->cpu = uncore->cpu;
+
+ return 0;
+}
+
+static umode_t
+amd_f17h_uncore_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return boot_cpu_data.x86 >= 0x17 && boot_cpu_data.x86 < 0x19 ?
+ attr->mode : 0;
+}
+
+static umode_t
+amd_f19h_uncore_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return boot_cpu_data.x86 >= 0x19 ? attr->mode : 0;
+}
+
+static ssize_t amd_uncore_attr_show_cpumask(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ cpumask_t *active_mask;
+ struct pmu *pmu = dev_get_drvdata(dev);
+
+ if (pmu->type == amd_nb_pmu.type)
+ active_mask = &amd_nb_active_mask;
+ else if (pmu->type == amd_llc_pmu.type)
+ active_mask = &amd_llc_active_mask;
+ else
+ return 0;
+
+ return cpumap_print_to_pagebuf(true, buf, active_mask);
+}
+static DEVICE_ATTR(cpumask, S_IRUGO, amd_uncore_attr_show_cpumask, NULL);
+
+static struct attribute *amd_uncore_attrs[] = {
+ &dev_attr_cpumask.attr,
+ NULL,
+};
+
+static struct attribute_group amd_uncore_attr_group = {
+ .attrs = amd_uncore_attrs,
+};
+
+#define DEFINE_UNCORE_FORMAT_ATTR(_var, _name, _format) \
+static ssize_t __uncore_##_var##_show(struct device *dev, \
+ struct device_attribute *attr, \
+ char *page) \
+{ \
+ BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE); \
+ return sprintf(page, _format "\n"); \
+} \
+static struct device_attribute format_attr_##_var = \
+ __ATTR(_name, 0444, __uncore_##_var##_show, NULL)
+
+DEFINE_UNCORE_FORMAT_ATTR(event12, event, "config:0-7,32-35");
+DEFINE_UNCORE_FORMAT_ATTR(event14, event, "config:0-7,32-35,59-60"); /* F17h+ DF */
+DEFINE_UNCORE_FORMAT_ATTR(event14v2, event, "config:0-7,32-37"); /* PerfMonV2 DF */
+DEFINE_UNCORE_FORMAT_ATTR(event8, event, "config:0-7"); /* F17h+ L3 */
+DEFINE_UNCORE_FORMAT_ATTR(umask8, umask, "config:8-15");
+DEFINE_UNCORE_FORMAT_ATTR(umask12, umask, "config:8-15,24-27"); /* PerfMonV2 DF */
+DEFINE_UNCORE_FORMAT_ATTR(coreid, coreid, "config:42-44"); /* F19h L3 */
+DEFINE_UNCORE_FORMAT_ATTR(slicemask, slicemask, "config:48-51"); /* F17h L3 */
+DEFINE_UNCORE_FORMAT_ATTR(threadmask8, threadmask, "config:56-63"); /* F17h L3 */
+DEFINE_UNCORE_FORMAT_ATTR(threadmask2, threadmask, "config:56-57"); /* F19h L3 */
+DEFINE_UNCORE_FORMAT_ATTR(enallslices, enallslices, "config:46"); /* F19h L3 */
+DEFINE_UNCORE_FORMAT_ATTR(enallcores, enallcores, "config:47"); /* F19h L3 */
+DEFINE_UNCORE_FORMAT_ATTR(sliceid, sliceid, "config:48-50"); /* F19h L3 */
+
+/* Common DF and NB attributes */
+static struct attribute *amd_uncore_df_format_attr[] = {
+ &format_attr_event12.attr, /* event */
+ &format_attr_umask8.attr, /* umask */
+ NULL,
+};
+
+/* Common L2 and L3 attributes */
+static struct attribute *amd_uncore_l3_format_attr[] = {
+ &format_attr_event12.attr, /* event */
+ &format_attr_umask8.attr, /* umask */
+ NULL, /* threadmask */
+ NULL,
+};
+
+/* F17h unique L3 attributes */
+static struct attribute *amd_f17h_uncore_l3_format_attr[] = {
+ &format_attr_slicemask.attr, /* slicemask */
+ NULL,
+};
+
+/* F19h unique L3 attributes */
+static struct attribute *amd_f19h_uncore_l3_format_attr[] = {
+ &format_attr_coreid.attr, /* coreid */
+ &format_attr_enallslices.attr, /* enallslices */
+ &format_attr_enallcores.attr, /* enallcores */
+ &format_attr_sliceid.attr, /* sliceid */
+ NULL,
+};
+
+static struct attribute_group amd_uncore_df_format_group = {
+ .name = "format",
+ .attrs = amd_uncore_df_format_attr,
+};
+
+static struct attribute_group amd_uncore_l3_format_group = {
+ .name = "format",
+ .attrs = amd_uncore_l3_format_attr,
+};
+
+static struct attribute_group amd_f17h_uncore_l3_format_group = {
+ .name = "format",
+ .attrs = amd_f17h_uncore_l3_format_attr,
+ .is_visible = amd_f17h_uncore_is_visible,
+};
+
+static struct attribute_group amd_f19h_uncore_l3_format_group = {
+ .name = "format",
+ .attrs = amd_f19h_uncore_l3_format_attr,
+ .is_visible = amd_f19h_uncore_is_visible,
+};
+
+static const struct attribute_group *amd_uncore_df_attr_groups[] = {
+ &amd_uncore_attr_group,
+ &amd_uncore_df_format_group,
+ NULL,
+};
+
+static const struct attribute_group *amd_uncore_l3_attr_groups[] = {
+ &amd_uncore_attr_group,
+ &amd_uncore_l3_format_group,
+ NULL,
+};
+
+static const struct attribute_group *amd_uncore_l3_attr_update[] = {
+ &amd_f17h_uncore_l3_format_group,
+ &amd_f19h_uncore_l3_format_group,
+ NULL,
+};
+
+static struct pmu amd_nb_pmu = {
+ .task_ctx_nr = perf_invalid_context,
+ .attr_groups = amd_uncore_df_attr_groups,
+ .name = "amd_nb",
+ .event_init = amd_uncore_event_init,
+ .add = amd_uncore_add,
+ .del = amd_uncore_del,
+ .start = amd_uncore_start,
+ .stop = amd_uncore_stop,
+ .read = amd_uncore_read,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE | PERF_PMU_CAP_NO_INTERRUPT,
+ .module = THIS_MODULE,
+};
+
+static struct pmu amd_llc_pmu = {
+ .task_ctx_nr = perf_invalid_context,
+ .attr_groups = amd_uncore_l3_attr_groups,
+ .attr_update = amd_uncore_l3_attr_update,
+ .name = "amd_l2",
+ .event_init = amd_uncore_event_init,
+ .add = amd_uncore_add,
+ .del = amd_uncore_del,
+ .start = amd_uncore_start,
+ .stop = amd_uncore_stop,
+ .read = amd_uncore_read,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE | PERF_PMU_CAP_NO_INTERRUPT,
+ .module = THIS_MODULE,
+};
+
+static struct amd_uncore *amd_uncore_alloc(unsigned int cpu)
+{
+ return kzalloc_node(sizeof(struct amd_uncore), GFP_KERNEL,
+ cpu_to_node(cpu));
+}
+
+static inline struct perf_event **
+amd_uncore_events_alloc(unsigned int num, unsigned int cpu)
+{
+ return kzalloc_node(sizeof(struct perf_event *) * num, GFP_KERNEL,
+ cpu_to_node(cpu));
+}
+
+static int amd_uncore_cpu_up_prepare(unsigned int cpu)
+{
+ struct amd_uncore *uncore_nb = NULL, *uncore_llc = NULL;
+
+ if (amd_uncore_nb) {
+ *per_cpu_ptr(amd_uncore_nb, cpu) = NULL;
+ uncore_nb = amd_uncore_alloc(cpu);
+ if (!uncore_nb)
+ goto fail;
+ uncore_nb->cpu = cpu;
+ uncore_nb->num_counters = num_counters_nb;
+ uncore_nb->rdpmc_base = RDPMC_BASE_NB;
+ uncore_nb->msr_base = MSR_F15H_NB_PERF_CTL;
+ uncore_nb->active_mask = &amd_nb_active_mask;
+ uncore_nb->pmu = &amd_nb_pmu;
+ uncore_nb->events = amd_uncore_events_alloc(num_counters_nb, cpu);
+ if (!uncore_nb->events)
+ goto fail;
+ uncore_nb->id = -1;
+ *per_cpu_ptr(amd_uncore_nb, cpu) = uncore_nb;
+ }
+
+ if (amd_uncore_llc) {
+ *per_cpu_ptr(amd_uncore_llc, cpu) = NULL;
+ uncore_llc = amd_uncore_alloc(cpu);
+ if (!uncore_llc)
+ goto fail;
+ uncore_llc->cpu = cpu;
+ uncore_llc->num_counters = num_counters_llc;
+ uncore_llc->rdpmc_base = RDPMC_BASE_LLC;
+ uncore_llc->msr_base = MSR_F16H_L2I_PERF_CTL;
+ uncore_llc->active_mask = &amd_llc_active_mask;
+ uncore_llc->pmu = &amd_llc_pmu;
+ uncore_llc->events = amd_uncore_events_alloc(num_counters_llc, cpu);
+ if (!uncore_llc->events)
+ goto fail;
+ uncore_llc->id = -1;
+ *per_cpu_ptr(amd_uncore_llc, cpu) = uncore_llc;
+ }
+
+ return 0;
+
+fail:
+ if (uncore_nb) {
+ kfree(uncore_nb->events);
+ kfree(uncore_nb);
+ }
+
+ if (uncore_llc) {
+ kfree(uncore_llc->events);
+ kfree(uncore_llc);
+ }
+
+ return -ENOMEM;
+}
+
+static struct amd_uncore *
+amd_uncore_find_online_sibling(struct amd_uncore *this,
+ struct amd_uncore * __percpu *uncores)
+{
+ unsigned int cpu;
+ struct amd_uncore *that;
+
+ for_each_online_cpu(cpu) {
+ that = *per_cpu_ptr(uncores, cpu);
+
+ if (!that)
+ continue;
+
+ if (this == that)
+ continue;
+
+ if (this->id == that->id) {
+ hlist_add_head(&this->node, &uncore_unused_list);
+ this = that;
+ break;
+ }
+ }
+
+ this->refcnt++;
+ return this;
+}
+
+static int amd_uncore_cpu_starting(unsigned int cpu)
+{
+ unsigned int eax, ebx, ecx, edx;
+ struct amd_uncore *uncore;
+
+ if (amd_uncore_nb) {
+ uncore = *per_cpu_ptr(amd_uncore_nb, cpu);
+ cpuid(0x8000001e, &eax, &ebx, &ecx, &edx);
+ uncore->id = ecx & 0xff;
+
+ uncore = amd_uncore_find_online_sibling(uncore, amd_uncore_nb);
+ *per_cpu_ptr(amd_uncore_nb, cpu) = uncore;
+ }
+
+ if (amd_uncore_llc) {
+ uncore = *per_cpu_ptr(amd_uncore_llc, cpu);
+ uncore->id = get_llc_id(cpu);
+
+ uncore = amd_uncore_find_online_sibling(uncore, amd_uncore_llc);
+ *per_cpu_ptr(amd_uncore_llc, cpu) = uncore;
+ }
+
+ return 0;
+}
+
+static void uncore_clean_online(void)
+{
+ struct amd_uncore *uncore;
+ struct hlist_node *n;
+
+ hlist_for_each_entry_safe(uncore, n, &uncore_unused_list, node) {
+ hlist_del(&uncore->node);
+ kfree(uncore->events);
+ kfree(uncore);
+ }
+}
+
+static void uncore_online(unsigned int cpu,
+ struct amd_uncore * __percpu *uncores)
+{
+ struct amd_uncore *uncore = *per_cpu_ptr(uncores, cpu);
+
+ uncore_clean_online();
+
+ if (cpu == uncore->cpu)
+ cpumask_set_cpu(cpu, uncore->active_mask);
+}
+
+static int amd_uncore_cpu_online(unsigned int cpu)
+{
+ if (amd_uncore_nb)
+ uncore_online(cpu, amd_uncore_nb);
+
+ if (amd_uncore_llc)
+ uncore_online(cpu, amd_uncore_llc);
+
+ return 0;
+}
+
+static void uncore_down_prepare(unsigned int cpu,
+ struct amd_uncore * __percpu *uncores)
+{
+ unsigned int i;
+ struct amd_uncore *this = *per_cpu_ptr(uncores, cpu);
+
+ if (this->cpu != cpu)
+ return;
+
+ /* this cpu is going down, migrate to a shared sibling if possible */
+ for_each_online_cpu(i) {
+ struct amd_uncore *that = *per_cpu_ptr(uncores, i);
+
+ if (cpu == i)
+ continue;
+
+ if (this == that) {
+ perf_pmu_migrate_context(this->pmu, cpu, i);
+ cpumask_clear_cpu(cpu, that->active_mask);
+ cpumask_set_cpu(i, that->active_mask);
+ that->cpu = i;
+ break;
+ }
+ }
+}
+
+static int amd_uncore_cpu_down_prepare(unsigned int cpu)
+{
+ if (amd_uncore_nb)
+ uncore_down_prepare(cpu, amd_uncore_nb);
+
+ if (amd_uncore_llc)
+ uncore_down_prepare(cpu, amd_uncore_llc);
+
+ return 0;
+}
+
+static void uncore_dead(unsigned int cpu, struct amd_uncore * __percpu *uncores)
+{
+ struct amd_uncore *uncore = *per_cpu_ptr(uncores, cpu);
+
+ if (cpu == uncore->cpu)
+ cpumask_clear_cpu(cpu, uncore->active_mask);
+
+ if (!--uncore->refcnt) {
+ kfree(uncore->events);
+ kfree(uncore);
+ }
+
+ *per_cpu_ptr(uncores, cpu) = NULL;
+}
+
+static int amd_uncore_cpu_dead(unsigned int cpu)
+{
+ if (amd_uncore_nb)
+ uncore_dead(cpu, amd_uncore_nb);
+
+ if (amd_uncore_llc)
+ uncore_dead(cpu, amd_uncore_llc);
+
+ return 0;
+}
+
+static int __init amd_uncore_init(void)
+{
+ struct attribute **df_attr = amd_uncore_df_format_attr;
+ struct attribute **l3_attr = amd_uncore_l3_format_attr;
+ union cpuid_0x80000022_ebx ebx;
+ int ret = -ENODEV;
+
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD &&
+ boot_cpu_data.x86_vendor != X86_VENDOR_HYGON)
+ return -ENODEV;
+
+ if (!boot_cpu_has(X86_FEATURE_TOPOEXT))
+ return -ENODEV;
+
+ if (boot_cpu_has(X86_FEATURE_PERFMON_V2))
+ pmu_version = 2;
+
+ num_counters_nb = NUM_COUNTERS_NB;
+ num_counters_llc = NUM_COUNTERS_L2;
+ if (boot_cpu_data.x86 >= 0x17) {
+ /*
+ * For F17h and above, the Northbridge counters are
+ * repurposed as Data Fabric counters. Also, L3
+ * counters are supported too. The PMUs are exported
+ * based on family as either L2 or L3 and NB or DF.
+ */
+ num_counters_llc = NUM_COUNTERS_L3;
+ amd_nb_pmu.name = "amd_df";
+ amd_llc_pmu.name = "amd_l3";
+ l3_mask = true;
+ }
+
+ if (boot_cpu_has(X86_FEATURE_PERFCTR_NB)) {
+ if (pmu_version >= 2) {
+ *df_attr++ = &format_attr_event14v2.attr;
+ *df_attr++ = &format_attr_umask12.attr;
+ } else if (boot_cpu_data.x86 >= 0x17) {
+ *df_attr = &format_attr_event14.attr;
+ }
+
+ amd_uncore_nb = alloc_percpu(struct amd_uncore *);
+ if (!amd_uncore_nb) {
+ ret = -ENOMEM;
+ goto fail_nb;
+ }
+ ret = perf_pmu_register(&amd_nb_pmu, amd_nb_pmu.name, -1);
+ if (ret)
+ goto fail_nb;
+
+ if (pmu_version >= 2) {
+ ebx.full = cpuid_ebx(EXT_PERFMON_DEBUG_FEATURES);
+ num_counters_nb = ebx.split.num_df_pmc;
+ }
+
+ pr_info("%d %s %s counters detected\n", num_counters_nb,
+ boot_cpu_data.x86_vendor == X86_VENDOR_HYGON ? "HYGON" : "",
+ amd_nb_pmu.name);
+
+ ret = 0;
+ }
+
+ if (boot_cpu_has(X86_FEATURE_PERFCTR_LLC)) {
+ if (boot_cpu_data.x86 >= 0x19) {
+ *l3_attr++ = &format_attr_event8.attr;
+ *l3_attr++ = &format_attr_umask8.attr;
+ *l3_attr++ = &format_attr_threadmask2.attr;
+ } else if (boot_cpu_data.x86 >= 0x17) {
+ *l3_attr++ = &format_attr_event8.attr;
+ *l3_attr++ = &format_attr_umask8.attr;
+ *l3_attr++ = &format_attr_threadmask8.attr;
+ }
+
+ amd_uncore_llc = alloc_percpu(struct amd_uncore *);
+ if (!amd_uncore_llc) {
+ ret = -ENOMEM;
+ goto fail_llc;
+ }
+ ret = perf_pmu_register(&amd_llc_pmu, amd_llc_pmu.name, -1);
+ if (ret)
+ goto fail_llc;
+
+ pr_info("%d %s %s counters detected\n", num_counters_llc,
+ boot_cpu_data.x86_vendor == X86_VENDOR_HYGON ? "HYGON" : "",
+ amd_llc_pmu.name);
+ ret = 0;
+ }
+
+ /*
+ * Install callbacks. Core will call them for each online cpu.
+ */
+ if (cpuhp_setup_state(CPUHP_PERF_X86_AMD_UNCORE_PREP,
+ "perf/x86/amd/uncore:prepare",
+ amd_uncore_cpu_up_prepare, amd_uncore_cpu_dead))
+ goto fail_llc;
+
+ if (cpuhp_setup_state(CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING,
+ "perf/x86/amd/uncore:starting",
+ amd_uncore_cpu_starting, NULL))
+ goto fail_prep;
+ if (cpuhp_setup_state(CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE,
+ "perf/x86/amd/uncore:online",
+ amd_uncore_cpu_online,
+ amd_uncore_cpu_down_prepare))
+ goto fail_start;
+ return 0;
+
+fail_start:
+ cpuhp_remove_state(CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING);
+fail_prep:
+ cpuhp_remove_state(CPUHP_PERF_X86_AMD_UNCORE_PREP);
+fail_llc:
+ if (boot_cpu_has(X86_FEATURE_PERFCTR_NB))
+ perf_pmu_unregister(&amd_nb_pmu);
+ free_percpu(amd_uncore_llc);
+fail_nb:
+ free_percpu(amd_uncore_nb);
+
+ return ret;
+}
+
+static void __exit amd_uncore_exit(void)
+{
+ cpuhp_remove_state(CPUHP_AP_PERF_X86_AMD_UNCORE_ONLINE);
+ cpuhp_remove_state(CPUHP_AP_PERF_X86_AMD_UNCORE_STARTING);
+ cpuhp_remove_state(CPUHP_PERF_X86_AMD_UNCORE_PREP);
+
+ if (boot_cpu_has(X86_FEATURE_PERFCTR_LLC)) {
+ perf_pmu_unregister(&amd_llc_pmu);
+ free_percpu(amd_uncore_llc);
+ amd_uncore_llc = NULL;
+ }
+
+ if (boot_cpu_has(X86_FEATURE_PERFCTR_NB)) {
+ perf_pmu_unregister(&amd_nb_pmu);
+ free_percpu(amd_uncore_nb);
+ amd_uncore_nb = NULL;
+ }
+}
+
+module_init(amd_uncore_init);
+module_exit(amd_uncore_exit);
+
+MODULE_DESCRIPTION("AMD Uncore Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c
new file mode 100644
index 000000000000..9d248703cbdd
--- /dev/null
+++ b/arch/x86/events/core.c
@@ -0,0 +1,3007 @@
+/*
+ * Performance events x86 architecture code
+ *
+ * Copyright (C) 2008 Thomas Gleixner <tglx@linutronix.de>
+ * Copyright (C) 2008-2009 Red Hat, Inc., Ingo Molnar
+ * Copyright (C) 2009 Jaswinder Singh Rajput
+ * Copyright (C) 2009 Advanced Micro Devices, Inc., Robert Richter
+ * Copyright (C) 2008-2009 Red Hat, Inc., Peter Zijlstra
+ * Copyright (C) 2009 Intel Corporation, <markus.t.metzger@intel.com>
+ * Copyright (C) 2009 Google, Inc., Stephane Eranian
+ *
+ * For licencing details see kernel-base/COPYING
+ */
+
+#include <linux/perf_event.h>
+#include <linux/capability.h>
+#include <linux/notifier.h>
+#include <linux/hardirq.h>
+#include <linux/kprobes.h>
+#include <linux/export.h>
+#include <linux/init.h>
+#include <linux/kdebug.h>
+#include <linux/sched/mm.h>
+#include <linux/sched/clock.h>
+#include <linux/uaccess.h>
+#include <linux/slab.h>
+#include <linux/cpu.h>
+#include <linux/bitops.h>
+#include <linux/device.h>
+#include <linux/nospec.h>
+#include <linux/static_call.h>
+
+#include <asm/apic.h>
+#include <asm/stacktrace.h>
+#include <asm/nmi.h>
+#include <asm/smp.h>
+#include <asm/alternative.h>
+#include <asm/mmu_context.h>
+#include <asm/tlbflush.h>
+#include <asm/timer.h>
+#include <asm/desc.h>
+#include <asm/ldt.h>
+#include <asm/unwind.h>
+
+#include "perf_event.h"
+
+struct x86_pmu x86_pmu __read_mostly;
+static struct pmu pmu;
+
+DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events) = {
+ .enabled = 1,
+ .pmu = &pmu,
+};
+
+DEFINE_STATIC_KEY_FALSE(rdpmc_never_available_key);
+DEFINE_STATIC_KEY_FALSE(rdpmc_always_available_key);
+DEFINE_STATIC_KEY_FALSE(perf_is_hybrid);
+
+/*
+ * This here uses DEFINE_STATIC_CALL_NULL() to get a static_call defined
+ * from just a typename, as opposed to an actual function.
+ */
+DEFINE_STATIC_CALL_NULL(x86_pmu_handle_irq, *x86_pmu.handle_irq);
+DEFINE_STATIC_CALL_NULL(x86_pmu_disable_all, *x86_pmu.disable_all);
+DEFINE_STATIC_CALL_NULL(x86_pmu_enable_all, *x86_pmu.enable_all);
+DEFINE_STATIC_CALL_NULL(x86_pmu_enable, *x86_pmu.enable);
+DEFINE_STATIC_CALL_NULL(x86_pmu_disable, *x86_pmu.disable);
+
+DEFINE_STATIC_CALL_NULL(x86_pmu_assign, *x86_pmu.assign);
+
+DEFINE_STATIC_CALL_NULL(x86_pmu_add, *x86_pmu.add);
+DEFINE_STATIC_CALL_NULL(x86_pmu_del, *x86_pmu.del);
+DEFINE_STATIC_CALL_NULL(x86_pmu_read, *x86_pmu.read);
+
+DEFINE_STATIC_CALL_NULL(x86_pmu_set_period, *x86_pmu.set_period);
+DEFINE_STATIC_CALL_NULL(x86_pmu_update, *x86_pmu.update);
+DEFINE_STATIC_CALL_NULL(x86_pmu_limit_period, *x86_pmu.limit_period);
+
+DEFINE_STATIC_CALL_NULL(x86_pmu_schedule_events, *x86_pmu.schedule_events);
+DEFINE_STATIC_CALL_NULL(x86_pmu_get_event_constraints, *x86_pmu.get_event_constraints);
+DEFINE_STATIC_CALL_NULL(x86_pmu_put_event_constraints, *x86_pmu.put_event_constraints);
+
+DEFINE_STATIC_CALL_NULL(x86_pmu_start_scheduling, *x86_pmu.start_scheduling);
+DEFINE_STATIC_CALL_NULL(x86_pmu_commit_scheduling, *x86_pmu.commit_scheduling);
+DEFINE_STATIC_CALL_NULL(x86_pmu_stop_scheduling, *x86_pmu.stop_scheduling);
+
+DEFINE_STATIC_CALL_NULL(x86_pmu_sched_task, *x86_pmu.sched_task);
+DEFINE_STATIC_CALL_NULL(x86_pmu_swap_task_ctx, *x86_pmu.swap_task_ctx);
+
+DEFINE_STATIC_CALL_NULL(x86_pmu_drain_pebs, *x86_pmu.drain_pebs);
+DEFINE_STATIC_CALL_NULL(x86_pmu_pebs_aliases, *x86_pmu.pebs_aliases);
+
+DEFINE_STATIC_CALL_NULL(x86_pmu_filter, *x86_pmu.filter);
+
+/*
+ * This one is magic, it will get called even when PMU init fails (because
+ * there is no PMU), in which case it should simply return NULL.
+ */
+DEFINE_STATIC_CALL_RET0(x86_pmu_guest_get_msrs, *x86_pmu.guest_get_msrs);
+
+u64 __read_mostly hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX];
+u64 __read_mostly hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX];
+
+/*
+ * Propagate event elapsed time into the generic event.
+ * Can only be executed on the CPU where the event is active.
+ * Returns the delta events processed.
+ */
+u64 x86_perf_event_update(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ int shift = 64 - x86_pmu.cntval_bits;
+ u64 prev_raw_count, new_raw_count;
+ u64 delta;
+
+ if (unlikely(!hwc->event_base))
+ return 0;
+
+ /*
+ * Careful: an NMI might modify the previous event value.
+ *
+ * Our tactic to handle this is to first atomically read and
+ * exchange a new raw count - then add that new-prev delta
+ * count to the generic event atomically:
+ */
+again:
+ prev_raw_count = local64_read(&hwc->prev_count);
+ rdpmcl(hwc->event_base_rdpmc, new_raw_count);
+
+ if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
+ new_raw_count) != prev_raw_count)
+ goto again;
+
+ /*
+ * Now we have the new raw value and have updated the prev
+ * timestamp already. We can now calculate the elapsed delta
+ * (event-)time and add that to the generic event.
+ *
+ * Careful, not all hw sign-extends above the physical width
+ * of the count.
+ */
+ delta = (new_raw_count << shift) - (prev_raw_count << shift);
+ delta >>= shift;
+
+ local64_add(delta, &event->count);
+ local64_sub(delta, &hwc->period_left);
+
+ return new_raw_count;
+}
+
+/*
+ * Find and validate any extra registers to set up.
+ */
+static int x86_pmu_extra_regs(u64 config, struct perf_event *event)
+{
+ struct extra_reg *extra_regs = hybrid(event->pmu, extra_regs);
+ struct hw_perf_event_extra *reg;
+ struct extra_reg *er;
+
+ reg = &event->hw.extra_reg;
+
+ if (!extra_regs)
+ return 0;
+
+ for (er = extra_regs; er->msr; er++) {
+ if (er->event != (config & er->config_mask))
+ continue;
+ if (event->attr.config1 & ~er->valid_mask)
+ return -EINVAL;
+ /* Check if the extra msrs can be safely accessed*/
+ if (!er->extra_msr_access)
+ return -ENXIO;
+
+ reg->idx = er->idx;
+ reg->config = event->attr.config1;
+ reg->reg = er->msr;
+ break;
+ }
+ return 0;
+}
+
+static atomic_t active_events;
+static atomic_t pmc_refcount;
+static DEFINE_MUTEX(pmc_reserve_mutex);
+
+#ifdef CONFIG_X86_LOCAL_APIC
+
+static inline int get_possible_num_counters(void)
+{
+ int i, num_counters = x86_pmu.num_counters;
+
+ if (!is_hybrid())
+ return num_counters;
+
+ for (i = 0; i < x86_pmu.num_hybrid_pmus; i++)
+ num_counters = max_t(int, num_counters, x86_pmu.hybrid_pmu[i].num_counters);
+
+ return num_counters;
+}
+
+static bool reserve_pmc_hardware(void)
+{
+ int i, num_counters = get_possible_num_counters();
+
+ for (i = 0; i < num_counters; i++) {
+ if (!reserve_perfctr_nmi(x86_pmu_event_addr(i)))
+ goto perfctr_fail;
+ }
+
+ for (i = 0; i < num_counters; i++) {
+ if (!reserve_evntsel_nmi(x86_pmu_config_addr(i)))
+ goto eventsel_fail;
+ }
+
+ return true;
+
+eventsel_fail:
+ for (i--; i >= 0; i--)
+ release_evntsel_nmi(x86_pmu_config_addr(i));
+
+ i = num_counters;
+
+perfctr_fail:
+ for (i--; i >= 0; i--)
+ release_perfctr_nmi(x86_pmu_event_addr(i));
+
+ return false;
+}
+
+static void release_pmc_hardware(void)
+{
+ int i, num_counters = get_possible_num_counters();
+
+ for (i = 0; i < num_counters; i++) {
+ release_perfctr_nmi(x86_pmu_event_addr(i));
+ release_evntsel_nmi(x86_pmu_config_addr(i));
+ }
+}
+
+#else
+
+static bool reserve_pmc_hardware(void) { return true; }
+static void release_pmc_hardware(void) {}
+
+#endif
+
+bool check_hw_exists(struct pmu *pmu, int num_counters, int num_counters_fixed)
+{
+ u64 val, val_fail = -1, val_new= ~0;
+ int i, reg, reg_fail = -1, ret = 0;
+ int bios_fail = 0;
+ int reg_safe = -1;
+
+ /*
+ * Check to see if the BIOS enabled any of the counters, if so
+ * complain and bail.
+ */
+ for (i = 0; i < num_counters; i++) {
+ reg = x86_pmu_config_addr(i);
+ ret = rdmsrl_safe(reg, &val);
+ if (ret)
+ goto msr_fail;
+ if (val & ARCH_PERFMON_EVENTSEL_ENABLE) {
+ bios_fail = 1;
+ val_fail = val;
+ reg_fail = reg;
+ } else {
+ reg_safe = i;
+ }
+ }
+
+ if (num_counters_fixed) {
+ reg = MSR_ARCH_PERFMON_FIXED_CTR_CTRL;
+ ret = rdmsrl_safe(reg, &val);
+ if (ret)
+ goto msr_fail;
+ for (i = 0; i < num_counters_fixed; i++) {
+ if (fixed_counter_disabled(i, pmu))
+ continue;
+ if (val & (0x03ULL << i*4)) {
+ bios_fail = 1;
+ val_fail = val;
+ reg_fail = reg;
+ }
+ }
+ }
+
+ /*
+ * If all the counters are enabled, the below test will always
+ * fail. The tools will also become useless in this scenario.
+ * Just fail and disable the hardware counters.
+ */
+
+ if (reg_safe == -1) {
+ reg = reg_safe;
+ goto msr_fail;
+ }
+
+ /*
+ * Read the current value, change it and read it back to see if it
+ * matches, this is needed to detect certain hardware emulators
+ * (qemu/kvm) that don't trap on the MSR access and always return 0s.
+ */
+ reg = x86_pmu_event_addr(reg_safe);
+ if (rdmsrl_safe(reg, &val))
+ goto msr_fail;
+ val ^= 0xffffUL;
+ ret = wrmsrl_safe(reg, val);
+ ret |= rdmsrl_safe(reg, &val_new);
+ if (ret || val != val_new)
+ goto msr_fail;
+
+ /*
+ * We still allow the PMU driver to operate:
+ */
+ if (bios_fail) {
+ pr_cont("Broken BIOS detected, complain to your hardware vendor.\n");
+ pr_err(FW_BUG "the BIOS has corrupted hw-PMU resources (MSR %x is %Lx)\n",
+ reg_fail, val_fail);
+ }
+
+ return true;
+
+msr_fail:
+ if (boot_cpu_has(X86_FEATURE_HYPERVISOR)) {
+ pr_cont("PMU not available due to virtualization, using software events only.\n");
+ } else {
+ pr_cont("Broken PMU hardware detected, using software events only.\n");
+ pr_err("Failed to access perfctr msr (MSR %x is %Lx)\n",
+ reg, val_new);
+ }
+
+ return false;
+}
+
+static void hw_perf_event_destroy(struct perf_event *event)
+{
+ x86_release_hardware();
+ atomic_dec(&active_events);
+}
+
+void hw_perf_lbr_event_destroy(struct perf_event *event)
+{
+ hw_perf_event_destroy(event);
+
+ /* undo the lbr/bts event accounting */
+ x86_del_exclusive(x86_lbr_exclusive_lbr);
+}
+
+static inline int x86_pmu_initialized(void)
+{
+ return x86_pmu.handle_irq != NULL;
+}
+
+static inline int
+set_ext_hw_attr(struct hw_perf_event *hwc, struct perf_event *event)
+{
+ struct perf_event_attr *attr = &event->attr;
+ unsigned int cache_type, cache_op, cache_result;
+ u64 config, val;
+
+ config = attr->config;
+
+ cache_type = (config >> 0) & 0xff;
+ if (cache_type >= PERF_COUNT_HW_CACHE_MAX)
+ return -EINVAL;
+ cache_type = array_index_nospec(cache_type, PERF_COUNT_HW_CACHE_MAX);
+
+ cache_op = (config >> 8) & 0xff;
+ if (cache_op >= PERF_COUNT_HW_CACHE_OP_MAX)
+ return -EINVAL;
+ cache_op = array_index_nospec(cache_op, PERF_COUNT_HW_CACHE_OP_MAX);
+
+ cache_result = (config >> 16) & 0xff;
+ if (cache_result >= PERF_COUNT_HW_CACHE_RESULT_MAX)
+ return -EINVAL;
+ cache_result = array_index_nospec(cache_result, PERF_COUNT_HW_CACHE_RESULT_MAX);
+
+ val = hybrid_var(event->pmu, hw_cache_event_ids)[cache_type][cache_op][cache_result];
+ if (val == 0)
+ return -ENOENT;
+
+ if (val == -1)
+ return -EINVAL;
+
+ hwc->config |= val;
+ attr->config1 = hybrid_var(event->pmu, hw_cache_extra_regs)[cache_type][cache_op][cache_result];
+ return x86_pmu_extra_regs(val, event);
+}
+
+int x86_reserve_hardware(void)
+{
+ int err = 0;
+
+ if (!atomic_inc_not_zero(&pmc_refcount)) {
+ mutex_lock(&pmc_reserve_mutex);
+ if (atomic_read(&pmc_refcount) == 0) {
+ if (!reserve_pmc_hardware()) {
+ err = -EBUSY;
+ } else {
+ reserve_ds_buffers();
+ reserve_lbr_buffers();
+ }
+ }
+ if (!err)
+ atomic_inc(&pmc_refcount);
+ mutex_unlock(&pmc_reserve_mutex);
+ }
+
+ return err;
+}
+
+void x86_release_hardware(void)
+{
+ if (atomic_dec_and_mutex_lock(&pmc_refcount, &pmc_reserve_mutex)) {
+ release_pmc_hardware();
+ release_ds_buffers();
+ release_lbr_buffers();
+ mutex_unlock(&pmc_reserve_mutex);
+ }
+}
+
+/*
+ * Check if we can create event of a certain type (that no conflicting events
+ * are present).
+ */
+int x86_add_exclusive(unsigned int what)
+{
+ int i;
+
+ /*
+ * When lbr_pt_coexist we allow PT to coexist with either LBR or BTS.
+ * LBR and BTS are still mutually exclusive.
+ */
+ if (x86_pmu.lbr_pt_coexist && what == x86_lbr_exclusive_pt)
+ goto out;
+
+ if (!atomic_inc_not_zero(&x86_pmu.lbr_exclusive[what])) {
+ mutex_lock(&pmc_reserve_mutex);
+ for (i = 0; i < ARRAY_SIZE(x86_pmu.lbr_exclusive); i++) {
+ if (i != what && atomic_read(&x86_pmu.lbr_exclusive[i]))
+ goto fail_unlock;
+ }
+ atomic_inc(&x86_pmu.lbr_exclusive[what]);
+ mutex_unlock(&pmc_reserve_mutex);
+ }
+
+out:
+ atomic_inc(&active_events);
+ return 0;
+
+fail_unlock:
+ mutex_unlock(&pmc_reserve_mutex);
+ return -EBUSY;
+}
+
+void x86_del_exclusive(unsigned int what)
+{
+ atomic_dec(&active_events);
+
+ /*
+ * See the comment in x86_add_exclusive().
+ */
+ if (x86_pmu.lbr_pt_coexist && what == x86_lbr_exclusive_pt)
+ return;
+
+ atomic_dec(&x86_pmu.lbr_exclusive[what]);
+}
+
+int x86_setup_perfctr(struct perf_event *event)
+{
+ struct perf_event_attr *attr = &event->attr;
+ struct hw_perf_event *hwc = &event->hw;
+ u64 config;
+
+ if (!is_sampling_event(event)) {
+ hwc->sample_period = x86_pmu.max_period;
+ hwc->last_period = hwc->sample_period;
+ local64_set(&hwc->period_left, hwc->sample_period);
+ }
+
+ if (attr->type == event->pmu->type)
+ return x86_pmu_extra_regs(event->attr.config, event);
+
+ if (attr->type == PERF_TYPE_HW_CACHE)
+ return set_ext_hw_attr(hwc, event);
+
+ if (attr->config >= x86_pmu.max_events)
+ return -EINVAL;
+
+ attr->config = array_index_nospec((unsigned long)attr->config, x86_pmu.max_events);
+
+ /*
+ * The generic map:
+ */
+ config = x86_pmu.event_map(attr->config);
+
+ if (config == 0)
+ return -ENOENT;
+
+ if (config == -1LL)
+ return -EINVAL;
+
+ hwc->config |= config;
+
+ return 0;
+}
+
+/*
+ * check that branch_sample_type is compatible with
+ * settings needed for precise_ip > 1 which implies
+ * using the LBR to capture ALL taken branches at the
+ * priv levels of the measurement
+ */
+static inline int precise_br_compat(struct perf_event *event)
+{
+ u64 m = event->attr.branch_sample_type;
+ u64 b = 0;
+
+ /* must capture all branches */
+ if (!(m & PERF_SAMPLE_BRANCH_ANY))
+ return 0;
+
+ m &= PERF_SAMPLE_BRANCH_KERNEL | PERF_SAMPLE_BRANCH_USER;
+
+ if (!event->attr.exclude_user)
+ b |= PERF_SAMPLE_BRANCH_USER;
+
+ if (!event->attr.exclude_kernel)
+ b |= PERF_SAMPLE_BRANCH_KERNEL;
+
+ /*
+ * ignore PERF_SAMPLE_BRANCH_HV, not supported on x86
+ */
+
+ return m == b;
+}
+
+int x86_pmu_max_precise(void)
+{
+ int precise = 0;
+
+ /* Support for constant skid */
+ if (x86_pmu.pebs_active && !x86_pmu.pebs_broken) {
+ precise++;
+
+ /* Support for IP fixup */
+ if (x86_pmu.lbr_nr || x86_pmu.intel_cap.pebs_format >= 2)
+ precise++;
+
+ if (x86_pmu.pebs_prec_dist)
+ precise++;
+ }
+ return precise;
+}
+
+int x86_pmu_hw_config(struct perf_event *event)
+{
+ if (event->attr.precise_ip) {
+ int precise = x86_pmu_max_precise();
+
+ if (event->attr.precise_ip > precise)
+ return -EOPNOTSUPP;
+
+ /* There's no sense in having PEBS for non sampling events: */
+ if (!is_sampling_event(event))
+ return -EINVAL;
+ }
+ /*
+ * check that PEBS LBR correction does not conflict with
+ * whatever the user is asking with attr->branch_sample_type
+ */
+ if (event->attr.precise_ip > 1 && x86_pmu.intel_cap.pebs_format < 2) {
+ u64 *br_type = &event->attr.branch_sample_type;
+
+ if (has_branch_stack(event)) {
+ if (!precise_br_compat(event))
+ return -EOPNOTSUPP;
+
+ /* branch_sample_type is compatible */
+
+ } else {
+ /*
+ * user did not specify branch_sample_type
+ *
+ * For PEBS fixups, we capture all
+ * the branches at the priv level of the
+ * event.
+ */
+ *br_type = PERF_SAMPLE_BRANCH_ANY;
+
+ if (!event->attr.exclude_user)
+ *br_type |= PERF_SAMPLE_BRANCH_USER;
+
+ if (!event->attr.exclude_kernel)
+ *br_type |= PERF_SAMPLE_BRANCH_KERNEL;
+ }
+ }
+
+ if (event->attr.branch_sample_type & PERF_SAMPLE_BRANCH_CALL_STACK)
+ event->attach_state |= PERF_ATTACH_TASK_DATA;
+
+ /*
+ * Generate PMC IRQs:
+ * (keep 'enabled' bit clear for now)
+ */
+ event->hw.config = ARCH_PERFMON_EVENTSEL_INT;
+
+ /*
+ * Count user and OS events unless requested not to
+ */
+ if (!event->attr.exclude_user)
+ event->hw.config |= ARCH_PERFMON_EVENTSEL_USR;
+ if (!event->attr.exclude_kernel)
+ event->hw.config |= ARCH_PERFMON_EVENTSEL_OS;
+
+ if (event->attr.type == event->pmu->type)
+ event->hw.config |= event->attr.config & X86_RAW_EVENT_MASK;
+
+ if (event->attr.sample_period && x86_pmu.limit_period) {
+ s64 left = event->attr.sample_period;
+ x86_pmu.limit_period(event, &left);
+ if (left > event->attr.sample_period)
+ return -EINVAL;
+ }
+
+ /* sample_regs_user never support XMM registers */
+ if (unlikely(event->attr.sample_regs_user & PERF_REG_EXTENDED_MASK))
+ return -EINVAL;
+ /*
+ * Besides the general purpose registers, XMM registers may
+ * be collected in PEBS on some platforms, e.g. Icelake
+ */
+ if (unlikely(event->attr.sample_regs_intr & PERF_REG_EXTENDED_MASK)) {
+ if (!(event->pmu->capabilities & PERF_PMU_CAP_EXTENDED_REGS))
+ return -EINVAL;
+
+ if (!event->attr.precise_ip)
+ return -EINVAL;
+ }
+
+ return x86_setup_perfctr(event);
+}
+
+/*
+ * Setup the hardware configuration for a given attr_type
+ */
+static int __x86_pmu_event_init(struct perf_event *event)
+{
+ int err;
+
+ if (!x86_pmu_initialized())
+ return -ENODEV;
+
+ err = x86_reserve_hardware();
+ if (err)
+ return err;
+
+ atomic_inc(&active_events);
+ event->destroy = hw_perf_event_destroy;
+
+ event->hw.idx = -1;
+ event->hw.last_cpu = -1;
+ event->hw.last_tag = ~0ULL;
+
+ /* mark unused */
+ event->hw.extra_reg.idx = EXTRA_REG_NONE;
+ event->hw.branch_reg.idx = EXTRA_REG_NONE;
+
+ return x86_pmu.hw_config(event);
+}
+
+void x86_pmu_disable_all(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int idx;
+
+ for (idx = 0; idx < x86_pmu.num_counters; idx++) {
+ struct hw_perf_event *hwc = &cpuc->events[idx]->hw;
+ u64 val;
+
+ if (!test_bit(idx, cpuc->active_mask))
+ continue;
+ rdmsrl(x86_pmu_config_addr(idx), val);
+ if (!(val & ARCH_PERFMON_EVENTSEL_ENABLE))
+ continue;
+ val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
+ wrmsrl(x86_pmu_config_addr(idx), val);
+ if (is_counter_pair(hwc))
+ wrmsrl(x86_pmu_config_addr(idx + 1), 0);
+ }
+}
+
+struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr, void *data)
+{
+ return static_call(x86_pmu_guest_get_msrs)(nr, data);
+}
+EXPORT_SYMBOL_GPL(perf_guest_get_msrs);
+
+/*
+ * There may be PMI landing after enabled=0. The PMI hitting could be before or
+ * after disable_all.
+ *
+ * If PMI hits before disable_all, the PMU will be disabled in the NMI handler.
+ * It will not be re-enabled in the NMI handler again, because enabled=0. After
+ * handling the NMI, disable_all will be called, which will not change the
+ * state either. If PMI hits after disable_all, the PMU is already disabled
+ * before entering NMI handler. The NMI handler will not change the state
+ * either.
+ *
+ * So either situation is harmless.
+ */
+static void x86_pmu_disable(struct pmu *pmu)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (!x86_pmu_initialized())
+ return;
+
+ if (!cpuc->enabled)
+ return;
+
+ cpuc->n_added = 0;
+ cpuc->enabled = 0;
+ barrier();
+
+ static_call(x86_pmu_disable_all)();
+}
+
+void x86_pmu_enable_all(int added)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int idx;
+
+ for (idx = 0; idx < x86_pmu.num_counters; idx++) {
+ struct hw_perf_event *hwc = &cpuc->events[idx]->hw;
+
+ if (!test_bit(idx, cpuc->active_mask))
+ continue;
+
+ __x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE);
+ }
+}
+
+static inline int is_x86_event(struct perf_event *event)
+{
+ int i;
+
+ if (!is_hybrid())
+ return event->pmu == &pmu;
+
+ for (i = 0; i < x86_pmu.num_hybrid_pmus; i++) {
+ if (event->pmu == &x86_pmu.hybrid_pmu[i].pmu)
+ return true;
+ }
+
+ return false;
+}
+
+struct pmu *x86_get_pmu(unsigned int cpu)
+{
+ struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+
+ /*
+ * All CPUs of the hybrid type have been offline.
+ * The x86_get_pmu() should not be invoked.
+ */
+ if (WARN_ON_ONCE(!cpuc->pmu))
+ return &pmu;
+
+ return cpuc->pmu;
+}
+/*
+ * Event scheduler state:
+ *
+ * Assign events iterating over all events and counters, beginning
+ * with events with least weights first. Keep the current iterator
+ * state in struct sched_state.
+ */
+struct sched_state {
+ int weight;
+ int event; /* event index */
+ int counter; /* counter index */
+ int unassigned; /* number of events to be assigned left */
+ int nr_gp; /* number of GP counters used */
+ u64 used;
+};
+
+/* Total max is X86_PMC_IDX_MAX, but we are O(n!) limited */
+#define SCHED_STATES_MAX 2
+
+struct perf_sched {
+ int max_weight;
+ int max_events;
+ int max_gp;
+ int saved_states;
+ struct event_constraint **constraints;
+ struct sched_state state;
+ struct sched_state saved[SCHED_STATES_MAX];
+};
+
+/*
+ * Initialize iterator that runs through all events and counters.
+ */
+static void perf_sched_init(struct perf_sched *sched, struct event_constraint **constraints,
+ int num, int wmin, int wmax, int gpmax)
+{
+ int idx;
+
+ memset(sched, 0, sizeof(*sched));
+ sched->max_events = num;
+ sched->max_weight = wmax;
+ sched->max_gp = gpmax;
+ sched->constraints = constraints;
+
+ for (idx = 0; idx < num; idx++) {
+ if (constraints[idx]->weight == wmin)
+ break;
+ }
+
+ sched->state.event = idx; /* start with min weight */
+ sched->state.weight = wmin;
+ sched->state.unassigned = num;
+}
+
+static void perf_sched_save_state(struct perf_sched *sched)
+{
+ if (WARN_ON_ONCE(sched->saved_states >= SCHED_STATES_MAX))
+ return;
+
+ sched->saved[sched->saved_states] = sched->state;
+ sched->saved_states++;
+}
+
+static bool perf_sched_restore_state(struct perf_sched *sched)
+{
+ if (!sched->saved_states)
+ return false;
+
+ sched->saved_states--;
+ sched->state = sched->saved[sched->saved_states];
+
+ /* this assignment didn't work out */
+ /* XXX broken vs EVENT_PAIR */
+ sched->state.used &= ~BIT_ULL(sched->state.counter);
+
+ /* try the next one */
+ sched->state.counter++;
+
+ return true;
+}
+
+/*
+ * Select a counter for the current event to schedule. Return true on
+ * success.
+ */
+static bool __perf_sched_find_counter(struct perf_sched *sched)
+{
+ struct event_constraint *c;
+ int idx;
+
+ if (!sched->state.unassigned)
+ return false;
+
+ if (sched->state.event >= sched->max_events)
+ return false;
+
+ c = sched->constraints[sched->state.event];
+ /* Prefer fixed purpose counters */
+ if (c->idxmsk64 & (~0ULL << INTEL_PMC_IDX_FIXED)) {
+ idx = INTEL_PMC_IDX_FIXED;
+ for_each_set_bit_from(idx, c->idxmsk, X86_PMC_IDX_MAX) {
+ u64 mask = BIT_ULL(idx);
+
+ if (sched->state.used & mask)
+ continue;
+
+ sched->state.used |= mask;
+ goto done;
+ }
+ }
+
+ /* Grab the first unused counter starting with idx */
+ idx = sched->state.counter;
+ for_each_set_bit_from(idx, c->idxmsk, INTEL_PMC_IDX_FIXED) {
+ u64 mask = BIT_ULL(idx);
+
+ if (c->flags & PERF_X86_EVENT_PAIR)
+ mask |= mask << 1;
+
+ if (sched->state.used & mask)
+ continue;
+
+ if (sched->state.nr_gp++ >= sched->max_gp)
+ return false;
+
+ sched->state.used |= mask;
+ goto done;
+ }
+
+ return false;
+
+done:
+ sched->state.counter = idx;
+
+ if (c->overlap)
+ perf_sched_save_state(sched);
+
+ return true;
+}
+
+static bool perf_sched_find_counter(struct perf_sched *sched)
+{
+ while (!__perf_sched_find_counter(sched)) {
+ if (!perf_sched_restore_state(sched))
+ return false;
+ }
+
+ return true;
+}
+
+/*
+ * Go through all unassigned events and find the next one to schedule.
+ * Take events with the least weight first. Return true on success.
+ */
+static bool perf_sched_next_event(struct perf_sched *sched)
+{
+ struct event_constraint *c;
+
+ if (!sched->state.unassigned || !--sched->state.unassigned)
+ return false;
+
+ do {
+ /* next event */
+ sched->state.event++;
+ if (sched->state.event >= sched->max_events) {
+ /* next weight */
+ sched->state.event = 0;
+ sched->state.weight++;
+ if (sched->state.weight > sched->max_weight)
+ return false;
+ }
+ c = sched->constraints[sched->state.event];
+ } while (c->weight != sched->state.weight);
+
+ sched->state.counter = 0; /* start with first counter */
+
+ return true;
+}
+
+/*
+ * Assign a counter for each event.
+ */
+int perf_assign_events(struct event_constraint **constraints, int n,
+ int wmin, int wmax, int gpmax, int *assign)
+{
+ struct perf_sched sched;
+
+ perf_sched_init(&sched, constraints, n, wmin, wmax, gpmax);
+
+ do {
+ if (!perf_sched_find_counter(&sched))
+ break; /* failed */
+ if (assign)
+ assign[sched.state.event] = sched.state.counter;
+ } while (perf_sched_next_event(&sched));
+
+ return sched.state.unassigned;
+}
+EXPORT_SYMBOL_GPL(perf_assign_events);
+
+int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign)
+{
+ int num_counters = hybrid(cpuc->pmu, num_counters);
+ struct event_constraint *c;
+ struct perf_event *e;
+ int n0, i, wmin, wmax, unsched = 0;
+ struct hw_perf_event *hwc;
+ u64 used_mask = 0;
+
+ /*
+ * Compute the number of events already present; see x86_pmu_add(),
+ * validate_group() and x86_pmu_commit_txn(). For the former two
+ * cpuc->n_events hasn't been updated yet, while for the latter
+ * cpuc->n_txn contains the number of events added in the current
+ * transaction.
+ */
+ n0 = cpuc->n_events;
+ if (cpuc->txn_flags & PERF_PMU_TXN_ADD)
+ n0 -= cpuc->n_txn;
+
+ static_call_cond(x86_pmu_start_scheduling)(cpuc);
+
+ for (i = 0, wmin = X86_PMC_IDX_MAX, wmax = 0; i < n; i++) {
+ c = cpuc->event_constraint[i];
+
+ /*
+ * Previously scheduled events should have a cached constraint,
+ * while new events should not have one.
+ */
+ WARN_ON_ONCE((c && i >= n0) || (!c && i < n0));
+
+ /*
+ * Request constraints for new events; or for those events that
+ * have a dynamic constraint -- for those the constraint can
+ * change due to external factors (sibling state, allow_tfa).
+ */
+ if (!c || (c->flags & PERF_X86_EVENT_DYNAMIC)) {
+ c = static_call(x86_pmu_get_event_constraints)(cpuc, i, cpuc->event_list[i]);
+ cpuc->event_constraint[i] = c;
+ }
+
+ wmin = min(wmin, c->weight);
+ wmax = max(wmax, c->weight);
+ }
+
+ /*
+ * fastpath, try to reuse previous register
+ */
+ for (i = 0; i < n; i++) {
+ u64 mask;
+
+ hwc = &cpuc->event_list[i]->hw;
+ c = cpuc->event_constraint[i];
+
+ /* never assigned */
+ if (hwc->idx == -1)
+ break;
+
+ /* constraint still honored */
+ if (!test_bit(hwc->idx, c->idxmsk))
+ break;
+
+ mask = BIT_ULL(hwc->idx);
+ if (is_counter_pair(hwc))
+ mask |= mask << 1;
+
+ /* not already used */
+ if (used_mask & mask)
+ break;
+
+ used_mask |= mask;
+
+ if (assign)
+ assign[i] = hwc->idx;
+ }
+
+ /* slow path */
+ if (i != n) {
+ int gpmax = num_counters;
+
+ /*
+ * Do not allow scheduling of more than half the available
+ * generic counters.
+ *
+ * This helps avoid counter starvation of sibling thread by
+ * ensuring at most half the counters cannot be in exclusive
+ * mode. There is no designated counters for the limits. Any
+ * N/2 counters can be used. This helps with events with
+ * specific counter constraints.
+ */
+ if (is_ht_workaround_enabled() && !cpuc->is_fake &&
+ READ_ONCE(cpuc->excl_cntrs->exclusive_present))
+ gpmax /= 2;
+
+ /*
+ * Reduce the amount of available counters to allow fitting
+ * the extra Merge events needed by large increment events.
+ */
+ if (x86_pmu.flags & PMU_FL_PAIR) {
+ gpmax = num_counters - cpuc->n_pair;
+ WARN_ON(gpmax <= 0);
+ }
+
+ unsched = perf_assign_events(cpuc->event_constraint, n, wmin,
+ wmax, gpmax, assign);
+ }
+
+ /*
+ * In case of success (unsched = 0), mark events as committed,
+ * so we do not put_constraint() in case new events are added
+ * and fail to be scheduled
+ *
+ * We invoke the lower level commit callback to lock the resource
+ *
+ * We do not need to do all of this in case we are called to
+ * validate an event group (assign == NULL)
+ */
+ if (!unsched && assign) {
+ for (i = 0; i < n; i++)
+ static_call_cond(x86_pmu_commit_scheduling)(cpuc, i, assign[i]);
+ } else {
+ for (i = n0; i < n; i++) {
+ e = cpuc->event_list[i];
+
+ /*
+ * release events that failed scheduling
+ */
+ static_call_cond(x86_pmu_put_event_constraints)(cpuc, e);
+
+ cpuc->event_constraint[i] = NULL;
+ }
+ }
+
+ static_call_cond(x86_pmu_stop_scheduling)(cpuc);
+
+ return unsched ? -EINVAL : 0;
+}
+
+static int add_nr_metric_event(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ if (is_metric_event(event)) {
+ if (cpuc->n_metric == INTEL_TD_METRIC_NUM)
+ return -EINVAL;
+ cpuc->n_metric++;
+ cpuc->n_txn_metric++;
+ }
+
+ return 0;
+}
+
+static void del_nr_metric_event(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ if (is_metric_event(event))
+ cpuc->n_metric--;
+}
+
+static int collect_event(struct cpu_hw_events *cpuc, struct perf_event *event,
+ int max_count, int n)
+{
+ union perf_capabilities intel_cap = hybrid(cpuc->pmu, intel_cap);
+
+ if (intel_cap.perf_metrics && add_nr_metric_event(cpuc, event))
+ return -EINVAL;
+
+ if (n >= max_count + cpuc->n_metric)
+ return -EINVAL;
+
+ cpuc->event_list[n] = event;
+ if (is_counter_pair(&event->hw)) {
+ cpuc->n_pair++;
+ cpuc->n_txn_pair++;
+ }
+
+ return 0;
+}
+
+/*
+ * dogrp: true if must collect siblings events (group)
+ * returns total number of events and error code
+ */
+static int collect_events(struct cpu_hw_events *cpuc, struct perf_event *leader, bool dogrp)
+{
+ int num_counters = hybrid(cpuc->pmu, num_counters);
+ int num_counters_fixed = hybrid(cpuc->pmu, num_counters_fixed);
+ struct perf_event *event;
+ int n, max_count;
+
+ max_count = num_counters + num_counters_fixed;
+
+ /* current number of events already accepted */
+ n = cpuc->n_events;
+ if (!cpuc->n_events)
+ cpuc->pebs_output = 0;
+
+ if (!cpuc->is_fake && leader->attr.precise_ip) {
+ /*
+ * For PEBS->PT, if !aux_event, the group leader (PT) went
+ * away, the group was broken down and this singleton event
+ * can't schedule any more.
+ */
+ if (is_pebs_pt(leader) && !leader->aux_event)
+ return -EINVAL;
+
+ /*
+ * pebs_output: 0: no PEBS so far, 1: PT, 2: DS
+ */
+ if (cpuc->pebs_output &&
+ cpuc->pebs_output != is_pebs_pt(leader) + 1)
+ return -EINVAL;
+
+ cpuc->pebs_output = is_pebs_pt(leader) + 1;
+ }
+
+ if (is_x86_event(leader)) {
+ if (collect_event(cpuc, leader, max_count, n))
+ return -EINVAL;
+ n++;
+ }
+
+ if (!dogrp)
+ return n;
+
+ for_each_sibling_event(event, leader) {
+ if (!is_x86_event(event) || event->state <= PERF_EVENT_STATE_OFF)
+ continue;
+
+ if (collect_event(cpuc, event, max_count, n))
+ return -EINVAL;
+
+ n++;
+ }
+ return n;
+}
+
+static inline void x86_assign_hw_event(struct perf_event *event,
+ struct cpu_hw_events *cpuc, int i)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ int idx;
+
+ idx = hwc->idx = cpuc->assign[i];
+ hwc->last_cpu = smp_processor_id();
+ hwc->last_tag = ++cpuc->tags[i];
+
+ static_call_cond(x86_pmu_assign)(event, idx);
+
+ switch (hwc->idx) {
+ case INTEL_PMC_IDX_FIXED_BTS:
+ case INTEL_PMC_IDX_FIXED_VLBR:
+ hwc->config_base = 0;
+ hwc->event_base = 0;
+ break;
+
+ case INTEL_PMC_IDX_METRIC_BASE ... INTEL_PMC_IDX_METRIC_END:
+ /* All the metric events are mapped onto the fixed counter 3. */
+ idx = INTEL_PMC_IDX_FIXED_SLOTS;
+ fallthrough;
+ case INTEL_PMC_IDX_FIXED ... INTEL_PMC_IDX_FIXED_BTS-1:
+ hwc->config_base = MSR_ARCH_PERFMON_FIXED_CTR_CTRL;
+ hwc->event_base = MSR_ARCH_PERFMON_FIXED_CTR0 +
+ (idx - INTEL_PMC_IDX_FIXED);
+ hwc->event_base_rdpmc = (idx - INTEL_PMC_IDX_FIXED) |
+ INTEL_PMC_FIXED_RDPMC_BASE;
+ break;
+
+ default:
+ hwc->config_base = x86_pmu_config_addr(hwc->idx);
+ hwc->event_base = x86_pmu_event_addr(hwc->idx);
+ hwc->event_base_rdpmc = x86_pmu_rdpmc_index(hwc->idx);
+ break;
+ }
+}
+
+/**
+ * x86_perf_rdpmc_index - Return PMC counter used for event
+ * @event: the perf_event to which the PMC counter was assigned
+ *
+ * The counter assigned to this performance event may change if interrupts
+ * are enabled. This counter should thus never be used while interrupts are
+ * enabled. Before this function is used to obtain the assigned counter the
+ * event should be checked for validity using, for example,
+ * perf_event_read_local(), within the same interrupt disabled section in
+ * which this counter is planned to be used.
+ *
+ * Return: The index of the performance monitoring counter assigned to
+ * @perf_event.
+ */
+int x86_perf_rdpmc_index(struct perf_event *event)
+{
+ lockdep_assert_irqs_disabled();
+
+ return event->hw.event_base_rdpmc;
+}
+
+static inline int match_prev_assignment(struct hw_perf_event *hwc,
+ struct cpu_hw_events *cpuc,
+ int i)
+{
+ return hwc->idx == cpuc->assign[i] &&
+ hwc->last_cpu == smp_processor_id() &&
+ hwc->last_tag == cpuc->tags[i];
+}
+
+static void x86_pmu_start(struct perf_event *event, int flags);
+
+static void x86_pmu_enable(struct pmu *pmu)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct perf_event *event;
+ struct hw_perf_event *hwc;
+ int i, added = cpuc->n_added;
+
+ if (!x86_pmu_initialized())
+ return;
+
+ if (cpuc->enabled)
+ return;
+
+ if (cpuc->n_added) {
+ int n_running = cpuc->n_events - cpuc->n_added;
+ /*
+ * apply assignment obtained either from
+ * hw_perf_group_sched_in() or x86_pmu_enable()
+ *
+ * step1: save events moving to new counters
+ */
+ for (i = 0; i < n_running; i++) {
+ event = cpuc->event_list[i];
+ hwc = &event->hw;
+
+ /*
+ * we can avoid reprogramming counter if:
+ * - assigned same counter as last time
+ * - running on same CPU as last time
+ * - no other event has used the counter since
+ */
+ if (hwc->idx == -1 ||
+ match_prev_assignment(hwc, cpuc, i))
+ continue;
+
+ /*
+ * Ensure we don't accidentally enable a stopped
+ * counter simply because we rescheduled.
+ */
+ if (hwc->state & PERF_HES_STOPPED)
+ hwc->state |= PERF_HES_ARCH;
+
+ x86_pmu_stop(event, PERF_EF_UPDATE);
+ }
+
+ /*
+ * step2: reprogram moved events into new counters
+ */
+ for (i = 0; i < cpuc->n_events; i++) {
+ event = cpuc->event_list[i];
+ hwc = &event->hw;
+
+ if (!match_prev_assignment(hwc, cpuc, i))
+ x86_assign_hw_event(event, cpuc, i);
+ else if (i < n_running)
+ continue;
+
+ if (hwc->state & PERF_HES_ARCH)
+ continue;
+
+ /*
+ * if cpuc->enabled = 0, then no wrmsr as
+ * per x86_pmu_enable_event()
+ */
+ x86_pmu_start(event, PERF_EF_RELOAD);
+ }
+ cpuc->n_added = 0;
+ perf_events_lapic_init();
+ }
+
+ cpuc->enabled = 1;
+ barrier();
+
+ static_call(x86_pmu_enable_all)(added);
+}
+
+DEFINE_PER_CPU(u64 [X86_PMC_IDX_MAX], pmc_prev_left);
+
+/*
+ * Set the next IRQ period, based on the hwc->period_left value.
+ * To be called with the event disabled in hw:
+ */
+int x86_perf_event_set_period(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ s64 left = local64_read(&hwc->period_left);
+ s64 period = hwc->sample_period;
+ int ret = 0, idx = hwc->idx;
+
+ if (unlikely(!hwc->event_base))
+ return 0;
+
+ /*
+ * If we are way outside a reasonable range then just skip forward:
+ */
+ if (unlikely(left <= -period)) {
+ left = period;
+ local64_set(&hwc->period_left, left);
+ hwc->last_period = period;
+ ret = 1;
+ }
+
+ if (unlikely(left <= 0)) {
+ left += period;
+ local64_set(&hwc->period_left, left);
+ hwc->last_period = period;
+ ret = 1;
+ }
+ /*
+ * Quirk: certain CPUs dont like it if just 1 hw_event is left:
+ */
+ if (unlikely(left < 2))
+ left = 2;
+
+ if (left > x86_pmu.max_period)
+ left = x86_pmu.max_period;
+
+ static_call_cond(x86_pmu_limit_period)(event, &left);
+
+ this_cpu_write(pmc_prev_left[idx], left);
+
+ /*
+ * The hw event starts counting from this event offset,
+ * mark it to be able to extra future deltas:
+ */
+ local64_set(&hwc->prev_count, (u64)-left);
+
+ wrmsrl(hwc->event_base, (u64)(-left) & x86_pmu.cntval_mask);
+
+ /*
+ * Sign extend the Merge event counter's upper 16 bits since
+ * we currently declare a 48-bit counter width
+ */
+ if (is_counter_pair(hwc))
+ wrmsrl(x86_pmu_event_addr(idx + 1), 0xffff);
+
+ perf_event_update_userpage(event);
+
+ return ret;
+}
+
+void x86_pmu_enable_event(struct perf_event *event)
+{
+ if (__this_cpu_read(cpu_hw_events.enabled))
+ __x86_pmu_enable_event(&event->hw,
+ ARCH_PERFMON_EVENTSEL_ENABLE);
+}
+
+/*
+ * Add a single event to the PMU.
+ *
+ * The event is added to the group of enabled events
+ * but only if it can be scheduled with existing events.
+ */
+static int x86_pmu_add(struct perf_event *event, int flags)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event *hwc;
+ int assign[X86_PMC_IDX_MAX];
+ int n, n0, ret;
+
+ hwc = &event->hw;
+
+ n0 = cpuc->n_events;
+ ret = n = collect_events(cpuc, event, false);
+ if (ret < 0)
+ goto out;
+
+ hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+ if (!(flags & PERF_EF_START))
+ hwc->state |= PERF_HES_ARCH;
+
+ /*
+ * If group events scheduling transaction was started,
+ * skip the schedulability test here, it will be performed
+ * at commit time (->commit_txn) as a whole.
+ *
+ * If commit fails, we'll call ->del() on all events
+ * for which ->add() was called.
+ */
+ if (cpuc->txn_flags & PERF_PMU_TXN_ADD)
+ goto done_collect;
+
+ ret = static_call(x86_pmu_schedule_events)(cpuc, n, assign);
+ if (ret)
+ goto out;
+ /*
+ * copy new assignment, now we know it is possible
+ * will be used by hw_perf_enable()
+ */
+ memcpy(cpuc->assign, assign, n*sizeof(int));
+
+done_collect:
+ /*
+ * Commit the collect_events() state. See x86_pmu_del() and
+ * x86_pmu_*_txn().
+ */
+ cpuc->n_events = n;
+ cpuc->n_added += n - n0;
+ cpuc->n_txn += n - n0;
+
+ /*
+ * This is before x86_pmu_enable() will call x86_pmu_start(),
+ * so we enable LBRs before an event needs them etc..
+ */
+ static_call_cond(x86_pmu_add)(event);
+
+ ret = 0;
+out:
+ return ret;
+}
+
+static void x86_pmu_start(struct perf_event *event, int flags)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int idx = event->hw.idx;
+
+ if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
+ return;
+
+ if (WARN_ON_ONCE(idx == -1))
+ return;
+
+ if (flags & PERF_EF_RELOAD) {
+ WARN_ON_ONCE(!(event->hw.state & PERF_HES_UPTODATE));
+ static_call(x86_pmu_set_period)(event);
+ }
+
+ event->hw.state = 0;
+
+ cpuc->events[idx] = event;
+ __set_bit(idx, cpuc->active_mask);
+ static_call(x86_pmu_enable)(event);
+ perf_event_update_userpage(event);
+}
+
+void perf_event_print_debug(void)
+{
+ u64 ctrl, status, overflow, pmc_ctrl, pmc_count, prev_left, fixed;
+ u64 pebs, debugctl;
+ int cpu = smp_processor_id();
+ struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+ int num_counters = hybrid(cpuc->pmu, num_counters);
+ int num_counters_fixed = hybrid(cpuc->pmu, num_counters_fixed);
+ struct event_constraint *pebs_constraints = hybrid(cpuc->pmu, pebs_constraints);
+ unsigned long flags;
+ int idx;
+
+ if (!num_counters)
+ return;
+
+ local_irq_save(flags);
+
+ if (x86_pmu.version >= 2) {
+ rdmsrl(MSR_CORE_PERF_GLOBAL_CTRL, ctrl);
+ rdmsrl(MSR_CORE_PERF_GLOBAL_STATUS, status);
+ rdmsrl(MSR_CORE_PERF_GLOBAL_OVF_CTRL, overflow);
+ rdmsrl(MSR_ARCH_PERFMON_FIXED_CTR_CTRL, fixed);
+
+ pr_info("\n");
+ pr_info("CPU#%d: ctrl: %016llx\n", cpu, ctrl);
+ pr_info("CPU#%d: status: %016llx\n", cpu, status);
+ pr_info("CPU#%d: overflow: %016llx\n", cpu, overflow);
+ pr_info("CPU#%d: fixed: %016llx\n", cpu, fixed);
+ if (pebs_constraints) {
+ rdmsrl(MSR_IA32_PEBS_ENABLE, pebs);
+ pr_info("CPU#%d: pebs: %016llx\n", cpu, pebs);
+ }
+ if (x86_pmu.lbr_nr) {
+ rdmsrl(MSR_IA32_DEBUGCTLMSR, debugctl);
+ pr_info("CPU#%d: debugctl: %016llx\n", cpu, debugctl);
+ }
+ }
+ pr_info("CPU#%d: active: %016llx\n", cpu, *(u64 *)cpuc->active_mask);
+
+ for (idx = 0; idx < num_counters; idx++) {
+ rdmsrl(x86_pmu_config_addr(idx), pmc_ctrl);
+ rdmsrl(x86_pmu_event_addr(idx), pmc_count);
+
+ prev_left = per_cpu(pmc_prev_left[idx], cpu);
+
+ pr_info("CPU#%d: gen-PMC%d ctrl: %016llx\n",
+ cpu, idx, pmc_ctrl);
+ pr_info("CPU#%d: gen-PMC%d count: %016llx\n",
+ cpu, idx, pmc_count);
+ pr_info("CPU#%d: gen-PMC%d left: %016llx\n",
+ cpu, idx, prev_left);
+ }
+ for (idx = 0; idx < num_counters_fixed; idx++) {
+ if (fixed_counter_disabled(idx, cpuc->pmu))
+ continue;
+ rdmsrl(MSR_ARCH_PERFMON_FIXED_CTR0 + idx, pmc_count);
+
+ pr_info("CPU#%d: fixed-PMC%d count: %016llx\n",
+ cpu, idx, pmc_count);
+ }
+ local_irq_restore(flags);
+}
+
+void x86_pmu_stop(struct perf_event *event, int flags)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (test_bit(hwc->idx, cpuc->active_mask)) {
+ static_call(x86_pmu_disable)(event);
+ __clear_bit(hwc->idx, cpuc->active_mask);
+ cpuc->events[hwc->idx] = NULL;
+ WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
+ hwc->state |= PERF_HES_STOPPED;
+ }
+
+ if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
+ /*
+ * Drain the remaining delta count out of a event
+ * that we are disabling:
+ */
+ static_call(x86_pmu_update)(event);
+ hwc->state |= PERF_HES_UPTODATE;
+ }
+}
+
+static void x86_pmu_del(struct perf_event *event, int flags)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ union perf_capabilities intel_cap = hybrid(cpuc->pmu, intel_cap);
+ int i;
+
+ /*
+ * If we're called during a txn, we only need to undo x86_pmu.add.
+ * The events never got scheduled and ->cancel_txn will truncate
+ * the event_list.
+ *
+ * XXX assumes any ->del() called during a TXN will only be on
+ * an event added during that same TXN.
+ */
+ if (cpuc->txn_flags & PERF_PMU_TXN_ADD)
+ goto do_del;
+
+ __set_bit(event->hw.idx, cpuc->dirty);
+
+ /*
+ * Not a TXN, therefore cleanup properly.
+ */
+ x86_pmu_stop(event, PERF_EF_UPDATE);
+
+ for (i = 0; i < cpuc->n_events; i++) {
+ if (event == cpuc->event_list[i])
+ break;
+ }
+
+ if (WARN_ON_ONCE(i == cpuc->n_events)) /* called ->del() without ->add() ? */
+ return;
+
+ /* If we have a newly added event; make sure to decrease n_added. */
+ if (i >= cpuc->n_events - cpuc->n_added)
+ --cpuc->n_added;
+
+ static_call_cond(x86_pmu_put_event_constraints)(cpuc, event);
+
+ /* Delete the array entry. */
+ while (++i < cpuc->n_events) {
+ cpuc->event_list[i-1] = cpuc->event_list[i];
+ cpuc->event_constraint[i-1] = cpuc->event_constraint[i];
+ }
+ cpuc->event_constraint[i-1] = NULL;
+ --cpuc->n_events;
+ if (intel_cap.perf_metrics)
+ del_nr_metric_event(cpuc, event);
+
+ perf_event_update_userpage(event);
+
+do_del:
+
+ /*
+ * This is after x86_pmu_stop(); so we disable LBRs after any
+ * event can need them etc..
+ */
+ static_call_cond(x86_pmu_del)(event);
+}
+
+int x86_pmu_handle_irq(struct pt_regs *regs)
+{
+ struct perf_sample_data data;
+ struct cpu_hw_events *cpuc;
+ struct perf_event *event;
+ int idx, handled = 0;
+ u64 val;
+
+ cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /*
+ * Some chipsets need to unmask the LVTPC in a particular spot
+ * inside the nmi handler. As a result, the unmasking was pushed
+ * into all the nmi handlers.
+ *
+ * This generic handler doesn't seem to have any issues where the
+ * unmasking occurs so it was left at the top.
+ */
+ apic_write(APIC_LVTPC, APIC_DM_NMI);
+
+ for (idx = 0; idx < x86_pmu.num_counters; idx++) {
+ if (!test_bit(idx, cpuc->active_mask))
+ continue;
+
+ event = cpuc->events[idx];
+
+ val = static_call(x86_pmu_update)(event);
+ if (val & (1ULL << (x86_pmu.cntval_bits - 1)))
+ continue;
+
+ /*
+ * event overflow
+ */
+ handled++;
+
+ if (!static_call(x86_pmu_set_period)(event))
+ continue;
+
+ perf_sample_data_init(&data, 0, event->hw.last_period);
+
+ if (has_branch_stack(event))
+ perf_sample_save_brstack(&data, event, &cpuc->lbr_stack);
+
+ if (perf_event_overflow(event, &data, regs))
+ x86_pmu_stop(event, 0);
+ }
+
+ if (handled)
+ inc_irq_stat(apic_perf_irqs);
+
+ return handled;
+}
+
+void perf_events_lapic_init(void)
+{
+ if (!x86_pmu.apic || !x86_pmu_initialized())
+ return;
+
+ /*
+ * Always use NMI for PMU
+ */
+ apic_write(APIC_LVTPC, APIC_DM_NMI);
+}
+
+static int
+perf_event_nmi_handler(unsigned int cmd, struct pt_regs *regs)
+{
+ u64 start_clock;
+ u64 finish_clock;
+ int ret;
+
+ /*
+ * All PMUs/events that share this PMI handler should make sure to
+ * increment active_events for their events.
+ */
+ if (!atomic_read(&active_events))
+ return NMI_DONE;
+
+ start_clock = sched_clock();
+ ret = static_call(x86_pmu_handle_irq)(regs);
+ finish_clock = sched_clock();
+
+ perf_sample_event_took(finish_clock - start_clock);
+
+ return ret;
+}
+NOKPROBE_SYMBOL(perf_event_nmi_handler);
+
+struct event_constraint emptyconstraint;
+struct event_constraint unconstrained;
+
+static int x86_pmu_prepare_cpu(unsigned int cpu)
+{
+ struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+ int i;
+
+ for (i = 0 ; i < X86_PERF_KFREE_MAX; i++)
+ cpuc->kfree_on_online[i] = NULL;
+ if (x86_pmu.cpu_prepare)
+ return x86_pmu.cpu_prepare(cpu);
+ return 0;
+}
+
+static int x86_pmu_dead_cpu(unsigned int cpu)
+{
+ if (x86_pmu.cpu_dead)
+ x86_pmu.cpu_dead(cpu);
+ return 0;
+}
+
+static int x86_pmu_online_cpu(unsigned int cpu)
+{
+ struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+ int i;
+
+ for (i = 0 ; i < X86_PERF_KFREE_MAX; i++) {
+ kfree(cpuc->kfree_on_online[i]);
+ cpuc->kfree_on_online[i] = NULL;
+ }
+ return 0;
+}
+
+static int x86_pmu_starting_cpu(unsigned int cpu)
+{
+ if (x86_pmu.cpu_starting)
+ x86_pmu.cpu_starting(cpu);
+ return 0;
+}
+
+static int x86_pmu_dying_cpu(unsigned int cpu)
+{
+ if (x86_pmu.cpu_dying)
+ x86_pmu.cpu_dying(cpu);
+ return 0;
+}
+
+static void __init pmu_check_apic(void)
+{
+ if (boot_cpu_has(X86_FEATURE_APIC))
+ return;
+
+ x86_pmu.apic = 0;
+ pr_info("no APIC, boot with the \"lapic\" boot parameter to force-enable it.\n");
+ pr_info("no hardware sampling interrupt available.\n");
+
+ /*
+ * If we have a PMU initialized but no APIC
+ * interrupts, we cannot sample hardware
+ * events (user-space has to fall back and
+ * sample via a hrtimer based software event):
+ */
+ pmu.capabilities |= PERF_PMU_CAP_NO_INTERRUPT;
+
+}
+
+static struct attribute_group x86_pmu_format_group __ro_after_init = {
+ .name = "format",
+ .attrs = NULL,
+};
+
+ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr, char *page)
+{
+ struct perf_pmu_events_attr *pmu_attr =
+ container_of(attr, struct perf_pmu_events_attr, attr);
+ u64 config = 0;
+
+ if (pmu_attr->id < x86_pmu.max_events)
+ config = x86_pmu.event_map(pmu_attr->id);
+
+ /* string trumps id */
+ if (pmu_attr->event_str)
+ return sprintf(page, "%s\n", pmu_attr->event_str);
+
+ return x86_pmu.events_sysfs_show(page, config);
+}
+EXPORT_SYMBOL_GPL(events_sysfs_show);
+
+ssize_t events_ht_sysfs_show(struct device *dev, struct device_attribute *attr,
+ char *page)
+{
+ struct perf_pmu_events_ht_attr *pmu_attr =
+ container_of(attr, struct perf_pmu_events_ht_attr, attr);
+
+ /*
+ * Report conditional events depending on Hyper-Threading.
+ *
+ * This is overly conservative as usually the HT special
+ * handling is not needed if the other CPU thread is idle.
+ *
+ * Note this does not (and cannot) handle the case when thread
+ * siblings are invisible, for example with virtualization
+ * if they are owned by some other guest. The user tool
+ * has to re-read when a thread sibling gets onlined later.
+ */
+ return sprintf(page, "%s",
+ topology_max_smt_threads() > 1 ?
+ pmu_attr->event_str_ht :
+ pmu_attr->event_str_noht);
+}
+
+ssize_t events_hybrid_sysfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *page)
+{
+ struct perf_pmu_events_hybrid_attr *pmu_attr =
+ container_of(attr, struct perf_pmu_events_hybrid_attr, attr);
+ struct x86_hybrid_pmu *pmu;
+ const char *str, *next_str;
+ int i;
+
+ if (hweight64(pmu_attr->pmu_type) == 1)
+ return sprintf(page, "%s", pmu_attr->event_str);
+
+ /*
+ * Hybrid PMUs may support the same event name, but with different
+ * event encoding, e.g., the mem-loads event on an Atom PMU has
+ * different event encoding from a Core PMU.
+ *
+ * The event_str includes all event encodings. Each event encoding
+ * is divided by ";". The order of the event encodings must follow
+ * the order of the hybrid PMU index.
+ */
+ pmu = container_of(dev_get_drvdata(dev), struct x86_hybrid_pmu, pmu);
+
+ str = pmu_attr->event_str;
+ for (i = 0; i < x86_pmu.num_hybrid_pmus; i++) {
+ if (!(x86_pmu.hybrid_pmu[i].cpu_type & pmu_attr->pmu_type))
+ continue;
+ if (x86_pmu.hybrid_pmu[i].cpu_type & pmu->cpu_type) {
+ next_str = strchr(str, ';');
+ if (next_str)
+ return snprintf(page, next_str - str + 1, "%s", str);
+ else
+ return sprintf(page, "%s", str);
+ }
+ str = strchr(str, ';');
+ str++;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(events_hybrid_sysfs_show);
+
+EVENT_ATTR(cpu-cycles, CPU_CYCLES );
+EVENT_ATTR(instructions, INSTRUCTIONS );
+EVENT_ATTR(cache-references, CACHE_REFERENCES );
+EVENT_ATTR(cache-misses, CACHE_MISSES );
+EVENT_ATTR(branch-instructions, BRANCH_INSTRUCTIONS );
+EVENT_ATTR(branch-misses, BRANCH_MISSES );
+EVENT_ATTR(bus-cycles, BUS_CYCLES );
+EVENT_ATTR(stalled-cycles-frontend, STALLED_CYCLES_FRONTEND );
+EVENT_ATTR(stalled-cycles-backend, STALLED_CYCLES_BACKEND );
+EVENT_ATTR(ref-cycles, REF_CPU_CYCLES );
+
+static struct attribute *empty_attrs;
+
+static struct attribute *events_attr[] = {
+ EVENT_PTR(CPU_CYCLES),
+ EVENT_PTR(INSTRUCTIONS),
+ EVENT_PTR(CACHE_REFERENCES),
+ EVENT_PTR(CACHE_MISSES),
+ EVENT_PTR(BRANCH_INSTRUCTIONS),
+ EVENT_PTR(BRANCH_MISSES),
+ EVENT_PTR(BUS_CYCLES),
+ EVENT_PTR(STALLED_CYCLES_FRONTEND),
+ EVENT_PTR(STALLED_CYCLES_BACKEND),
+ EVENT_PTR(REF_CPU_CYCLES),
+ NULL,
+};
+
+/*
+ * Remove all undefined events (x86_pmu.event_map(id) == 0)
+ * out of events_attr attributes.
+ */
+static umode_t
+is_visible(struct kobject *kobj, struct attribute *attr, int idx)
+{
+ struct perf_pmu_events_attr *pmu_attr;
+
+ if (idx >= x86_pmu.max_events)
+ return 0;
+
+ pmu_attr = container_of(attr, struct perf_pmu_events_attr, attr.attr);
+ /* str trumps id */
+ return pmu_attr->event_str || x86_pmu.event_map(idx) ? attr->mode : 0;
+}
+
+static struct attribute_group x86_pmu_events_group __ro_after_init = {
+ .name = "events",
+ .attrs = events_attr,
+ .is_visible = is_visible,
+};
+
+ssize_t x86_event_sysfs_show(char *page, u64 config, u64 event)
+{
+ u64 umask = (config & ARCH_PERFMON_EVENTSEL_UMASK) >> 8;
+ u64 cmask = (config & ARCH_PERFMON_EVENTSEL_CMASK) >> 24;
+ bool edge = (config & ARCH_PERFMON_EVENTSEL_EDGE);
+ bool pc = (config & ARCH_PERFMON_EVENTSEL_PIN_CONTROL);
+ bool any = (config & ARCH_PERFMON_EVENTSEL_ANY);
+ bool inv = (config & ARCH_PERFMON_EVENTSEL_INV);
+ ssize_t ret;
+
+ /*
+ * We have whole page size to spend and just little data
+ * to write, so we can safely use sprintf.
+ */
+ ret = sprintf(page, "event=0x%02llx", event);
+
+ if (umask)
+ ret += sprintf(page + ret, ",umask=0x%02llx", umask);
+
+ if (edge)
+ ret += sprintf(page + ret, ",edge");
+
+ if (pc)
+ ret += sprintf(page + ret, ",pc");
+
+ if (any)
+ ret += sprintf(page + ret, ",any");
+
+ if (inv)
+ ret += sprintf(page + ret, ",inv");
+
+ if (cmask)
+ ret += sprintf(page + ret, ",cmask=0x%02llx", cmask);
+
+ ret += sprintf(page + ret, "\n");
+
+ return ret;
+}
+
+static struct attribute_group x86_pmu_attr_group;
+static struct attribute_group x86_pmu_caps_group;
+
+static void x86_pmu_static_call_update(void)
+{
+ static_call_update(x86_pmu_handle_irq, x86_pmu.handle_irq);
+ static_call_update(x86_pmu_disable_all, x86_pmu.disable_all);
+ static_call_update(x86_pmu_enable_all, x86_pmu.enable_all);
+ static_call_update(x86_pmu_enable, x86_pmu.enable);
+ static_call_update(x86_pmu_disable, x86_pmu.disable);
+
+ static_call_update(x86_pmu_assign, x86_pmu.assign);
+
+ static_call_update(x86_pmu_add, x86_pmu.add);
+ static_call_update(x86_pmu_del, x86_pmu.del);
+ static_call_update(x86_pmu_read, x86_pmu.read);
+
+ static_call_update(x86_pmu_set_period, x86_pmu.set_period);
+ static_call_update(x86_pmu_update, x86_pmu.update);
+ static_call_update(x86_pmu_limit_period, x86_pmu.limit_period);
+
+ static_call_update(x86_pmu_schedule_events, x86_pmu.schedule_events);
+ static_call_update(x86_pmu_get_event_constraints, x86_pmu.get_event_constraints);
+ static_call_update(x86_pmu_put_event_constraints, x86_pmu.put_event_constraints);
+
+ static_call_update(x86_pmu_start_scheduling, x86_pmu.start_scheduling);
+ static_call_update(x86_pmu_commit_scheduling, x86_pmu.commit_scheduling);
+ static_call_update(x86_pmu_stop_scheduling, x86_pmu.stop_scheduling);
+
+ static_call_update(x86_pmu_sched_task, x86_pmu.sched_task);
+ static_call_update(x86_pmu_swap_task_ctx, x86_pmu.swap_task_ctx);
+
+ static_call_update(x86_pmu_drain_pebs, x86_pmu.drain_pebs);
+ static_call_update(x86_pmu_pebs_aliases, x86_pmu.pebs_aliases);
+
+ static_call_update(x86_pmu_guest_get_msrs, x86_pmu.guest_get_msrs);
+ static_call_update(x86_pmu_filter, x86_pmu.filter);
+}
+
+static void _x86_pmu_read(struct perf_event *event)
+{
+ static_call(x86_pmu_update)(event);
+}
+
+void x86_pmu_show_pmu_cap(int num_counters, int num_counters_fixed,
+ u64 intel_ctrl)
+{
+ pr_info("... version: %d\n", x86_pmu.version);
+ pr_info("... bit width: %d\n", x86_pmu.cntval_bits);
+ pr_info("... generic registers: %d\n", num_counters);
+ pr_info("... value mask: %016Lx\n", x86_pmu.cntval_mask);
+ pr_info("... max period: %016Lx\n", x86_pmu.max_period);
+ pr_info("... fixed-purpose events: %lu\n",
+ hweight64((((1ULL << num_counters_fixed) - 1)
+ << INTEL_PMC_IDX_FIXED) & intel_ctrl));
+ pr_info("... event mask: %016Lx\n", intel_ctrl);
+}
+
+static int __init init_hw_perf_events(void)
+{
+ struct x86_pmu_quirk *quirk;
+ int err;
+
+ pr_info("Performance Events: ");
+
+ switch (boot_cpu_data.x86_vendor) {
+ case X86_VENDOR_INTEL:
+ err = intel_pmu_init();
+ break;
+ case X86_VENDOR_AMD:
+ err = amd_pmu_init();
+ break;
+ case X86_VENDOR_HYGON:
+ err = amd_pmu_init();
+ x86_pmu.name = "HYGON";
+ break;
+ case X86_VENDOR_ZHAOXIN:
+ case X86_VENDOR_CENTAUR:
+ err = zhaoxin_pmu_init();
+ break;
+ default:
+ err = -ENOTSUPP;
+ }
+ if (err != 0) {
+ pr_cont("no PMU driver, software events only.\n");
+ err = 0;
+ goto out_bad_pmu;
+ }
+
+ pmu_check_apic();
+
+ /* sanity check that the hardware exists or is emulated */
+ if (!check_hw_exists(&pmu, x86_pmu.num_counters, x86_pmu.num_counters_fixed))
+ goto out_bad_pmu;
+
+ pr_cont("%s PMU driver.\n", x86_pmu.name);
+
+ x86_pmu.attr_rdpmc = 1; /* enable userspace RDPMC usage by default */
+
+ for (quirk = x86_pmu.quirks; quirk; quirk = quirk->next)
+ quirk->func();
+
+ if (!x86_pmu.intel_ctrl)
+ x86_pmu.intel_ctrl = (1 << x86_pmu.num_counters) - 1;
+
+ perf_events_lapic_init();
+ register_nmi_handler(NMI_LOCAL, perf_event_nmi_handler, 0, "PMI");
+
+ unconstrained = (struct event_constraint)
+ __EVENT_CONSTRAINT(0, (1ULL << x86_pmu.num_counters) - 1,
+ 0, x86_pmu.num_counters, 0, 0);
+
+ x86_pmu_format_group.attrs = x86_pmu.format_attrs;
+
+ if (!x86_pmu.events_sysfs_show)
+ x86_pmu_events_group.attrs = &empty_attrs;
+
+ pmu.attr_update = x86_pmu.attr_update;
+
+ if (!is_hybrid()) {
+ x86_pmu_show_pmu_cap(x86_pmu.num_counters,
+ x86_pmu.num_counters_fixed,
+ x86_pmu.intel_ctrl);
+ }
+
+ if (!x86_pmu.read)
+ x86_pmu.read = _x86_pmu_read;
+
+ if (!x86_pmu.guest_get_msrs)
+ x86_pmu.guest_get_msrs = (void *)&__static_call_return0;
+
+ if (!x86_pmu.set_period)
+ x86_pmu.set_period = x86_perf_event_set_period;
+
+ if (!x86_pmu.update)
+ x86_pmu.update = x86_perf_event_update;
+
+ x86_pmu_static_call_update();
+
+ /*
+ * Install callbacks. Core will call them for each online
+ * cpu.
+ */
+ err = cpuhp_setup_state(CPUHP_PERF_X86_PREPARE, "perf/x86:prepare",
+ x86_pmu_prepare_cpu, x86_pmu_dead_cpu);
+ if (err)
+ return err;
+
+ err = cpuhp_setup_state(CPUHP_AP_PERF_X86_STARTING,
+ "perf/x86:starting", x86_pmu_starting_cpu,
+ x86_pmu_dying_cpu);
+ if (err)
+ goto out;
+
+ err = cpuhp_setup_state(CPUHP_AP_PERF_X86_ONLINE, "perf/x86:online",
+ x86_pmu_online_cpu, NULL);
+ if (err)
+ goto out1;
+
+ if (!is_hybrid()) {
+ err = perf_pmu_register(&pmu, "cpu", PERF_TYPE_RAW);
+ if (err)
+ goto out2;
+ } else {
+ struct x86_hybrid_pmu *hybrid_pmu;
+ int i, j;
+
+ for (i = 0; i < x86_pmu.num_hybrid_pmus; i++) {
+ hybrid_pmu = &x86_pmu.hybrid_pmu[i];
+
+ hybrid_pmu->pmu = pmu;
+ hybrid_pmu->pmu.type = -1;
+ hybrid_pmu->pmu.attr_update = x86_pmu.attr_update;
+ hybrid_pmu->pmu.capabilities |= PERF_PMU_CAP_HETEROGENEOUS_CPUS;
+ hybrid_pmu->pmu.capabilities |= PERF_PMU_CAP_EXTENDED_HW_TYPE;
+
+ err = perf_pmu_register(&hybrid_pmu->pmu, hybrid_pmu->name,
+ (hybrid_pmu->cpu_type == hybrid_big) ? PERF_TYPE_RAW : -1);
+ if (err)
+ break;
+ }
+
+ if (i < x86_pmu.num_hybrid_pmus) {
+ for (j = 0; j < i; j++)
+ perf_pmu_unregister(&x86_pmu.hybrid_pmu[j].pmu);
+ pr_warn("Failed to register hybrid PMUs\n");
+ kfree(x86_pmu.hybrid_pmu);
+ x86_pmu.hybrid_pmu = NULL;
+ x86_pmu.num_hybrid_pmus = 0;
+ goto out2;
+ }
+ }
+
+ return 0;
+
+out2:
+ cpuhp_remove_state(CPUHP_AP_PERF_X86_ONLINE);
+out1:
+ cpuhp_remove_state(CPUHP_AP_PERF_X86_STARTING);
+out:
+ cpuhp_remove_state(CPUHP_PERF_X86_PREPARE);
+out_bad_pmu:
+ memset(&x86_pmu, 0, sizeof(x86_pmu));
+ return err;
+}
+early_initcall(init_hw_perf_events);
+
+static void x86_pmu_read(struct perf_event *event)
+{
+ static_call(x86_pmu_read)(event);
+}
+
+/*
+ * Start group events scheduling transaction
+ * Set the flag to make pmu::enable() not perform the
+ * schedulability test, it will be performed at commit time
+ *
+ * We only support PERF_PMU_TXN_ADD transactions. Save the
+ * transaction flags but otherwise ignore non-PERF_PMU_TXN_ADD
+ * transactions.
+ */
+static void x86_pmu_start_txn(struct pmu *pmu, unsigned int txn_flags)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ WARN_ON_ONCE(cpuc->txn_flags); /* txn already in flight */
+
+ cpuc->txn_flags = txn_flags;
+ if (txn_flags & ~PERF_PMU_TXN_ADD)
+ return;
+
+ perf_pmu_disable(pmu);
+ __this_cpu_write(cpu_hw_events.n_txn, 0);
+ __this_cpu_write(cpu_hw_events.n_txn_pair, 0);
+ __this_cpu_write(cpu_hw_events.n_txn_metric, 0);
+}
+
+/*
+ * Stop group events scheduling transaction
+ * Clear the flag and pmu::enable() will perform the
+ * schedulability test.
+ */
+static void x86_pmu_cancel_txn(struct pmu *pmu)
+{
+ unsigned int txn_flags;
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ WARN_ON_ONCE(!cpuc->txn_flags); /* no txn in flight */
+
+ txn_flags = cpuc->txn_flags;
+ cpuc->txn_flags = 0;
+ if (txn_flags & ~PERF_PMU_TXN_ADD)
+ return;
+
+ /*
+ * Truncate collected array by the number of events added in this
+ * transaction. See x86_pmu_add() and x86_pmu_*_txn().
+ */
+ __this_cpu_sub(cpu_hw_events.n_added, __this_cpu_read(cpu_hw_events.n_txn));
+ __this_cpu_sub(cpu_hw_events.n_events, __this_cpu_read(cpu_hw_events.n_txn));
+ __this_cpu_sub(cpu_hw_events.n_pair, __this_cpu_read(cpu_hw_events.n_txn_pair));
+ __this_cpu_sub(cpu_hw_events.n_metric, __this_cpu_read(cpu_hw_events.n_txn_metric));
+ perf_pmu_enable(pmu);
+}
+
+/*
+ * Commit group events scheduling transaction
+ * Perform the group schedulability test as a whole
+ * Return 0 if success
+ *
+ * Does not cancel the transaction on failure; expects the caller to do this.
+ */
+static int x86_pmu_commit_txn(struct pmu *pmu)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int assign[X86_PMC_IDX_MAX];
+ int n, ret;
+
+ WARN_ON_ONCE(!cpuc->txn_flags); /* no txn in flight */
+
+ if (cpuc->txn_flags & ~PERF_PMU_TXN_ADD) {
+ cpuc->txn_flags = 0;
+ return 0;
+ }
+
+ n = cpuc->n_events;
+
+ if (!x86_pmu_initialized())
+ return -EAGAIN;
+
+ ret = static_call(x86_pmu_schedule_events)(cpuc, n, assign);
+ if (ret)
+ return ret;
+
+ /*
+ * copy new assignment, now we know it is possible
+ * will be used by hw_perf_enable()
+ */
+ memcpy(cpuc->assign, assign, n*sizeof(int));
+
+ cpuc->txn_flags = 0;
+ perf_pmu_enable(pmu);
+ return 0;
+}
+/*
+ * a fake_cpuc is used to validate event groups. Due to
+ * the extra reg logic, we need to also allocate a fake
+ * per_core and per_cpu structure. Otherwise, group events
+ * using extra reg may conflict without the kernel being
+ * able to catch this when the last event gets added to
+ * the group.
+ */
+static void free_fake_cpuc(struct cpu_hw_events *cpuc)
+{
+ intel_cpuc_finish(cpuc);
+ kfree(cpuc);
+}
+
+static struct cpu_hw_events *allocate_fake_cpuc(struct pmu *event_pmu)
+{
+ struct cpu_hw_events *cpuc;
+ int cpu;
+
+ cpuc = kzalloc(sizeof(*cpuc), GFP_KERNEL);
+ if (!cpuc)
+ return ERR_PTR(-ENOMEM);
+ cpuc->is_fake = 1;
+
+ if (is_hybrid()) {
+ struct x86_hybrid_pmu *h_pmu;
+
+ h_pmu = hybrid_pmu(event_pmu);
+ if (cpumask_empty(&h_pmu->supported_cpus))
+ goto error;
+ cpu = cpumask_first(&h_pmu->supported_cpus);
+ } else
+ cpu = raw_smp_processor_id();
+ cpuc->pmu = event_pmu;
+
+ if (intel_cpuc_prepare(cpuc, cpu))
+ goto error;
+
+ return cpuc;
+error:
+ free_fake_cpuc(cpuc);
+ return ERR_PTR(-ENOMEM);
+}
+
+/*
+ * validate that we can schedule this event
+ */
+static int validate_event(struct perf_event *event)
+{
+ struct cpu_hw_events *fake_cpuc;
+ struct event_constraint *c;
+ int ret = 0;
+
+ fake_cpuc = allocate_fake_cpuc(event->pmu);
+ if (IS_ERR(fake_cpuc))
+ return PTR_ERR(fake_cpuc);
+
+ c = x86_pmu.get_event_constraints(fake_cpuc, 0, event);
+
+ if (!c || !c->weight)
+ ret = -EINVAL;
+
+ if (x86_pmu.put_event_constraints)
+ x86_pmu.put_event_constraints(fake_cpuc, event);
+
+ free_fake_cpuc(fake_cpuc);
+
+ return ret;
+}
+
+/*
+ * validate a single event group
+ *
+ * validation include:
+ * - check events are compatible which each other
+ * - events do not compete for the same counter
+ * - number of events <= number of counters
+ *
+ * validation ensures the group can be loaded onto the
+ * PMU if it was the only group available.
+ */
+static int validate_group(struct perf_event *event)
+{
+ struct perf_event *leader = event->group_leader;
+ struct cpu_hw_events *fake_cpuc;
+ int ret = -EINVAL, n;
+
+ /*
+ * Reject events from different hybrid PMUs.
+ */
+ if (is_hybrid()) {
+ struct perf_event *sibling;
+ struct pmu *pmu = NULL;
+
+ if (is_x86_event(leader))
+ pmu = leader->pmu;
+
+ for_each_sibling_event(sibling, leader) {
+ if (!is_x86_event(sibling))
+ continue;
+ if (!pmu)
+ pmu = sibling->pmu;
+ else if (pmu != sibling->pmu)
+ return ret;
+ }
+ }
+
+ fake_cpuc = allocate_fake_cpuc(event->pmu);
+ if (IS_ERR(fake_cpuc))
+ return PTR_ERR(fake_cpuc);
+ /*
+ * the event is not yet connected with its
+ * siblings therefore we must first collect
+ * existing siblings, then add the new event
+ * before we can simulate the scheduling
+ */
+ n = collect_events(fake_cpuc, leader, true);
+ if (n < 0)
+ goto out;
+
+ fake_cpuc->n_events = n;
+ n = collect_events(fake_cpuc, event, false);
+ if (n < 0)
+ goto out;
+
+ fake_cpuc->n_events = 0;
+ ret = x86_pmu.schedule_events(fake_cpuc, n, NULL);
+
+out:
+ free_fake_cpuc(fake_cpuc);
+ return ret;
+}
+
+static int x86_pmu_event_init(struct perf_event *event)
+{
+ struct x86_hybrid_pmu *pmu = NULL;
+ int err;
+
+ if ((event->attr.type != event->pmu->type) &&
+ (event->attr.type != PERF_TYPE_HARDWARE) &&
+ (event->attr.type != PERF_TYPE_HW_CACHE))
+ return -ENOENT;
+
+ if (is_hybrid() && (event->cpu != -1)) {
+ pmu = hybrid_pmu(event->pmu);
+ if (!cpumask_test_cpu(event->cpu, &pmu->supported_cpus))
+ return -ENOENT;
+ }
+
+ err = __x86_pmu_event_init(event);
+ if (!err) {
+ if (event->group_leader != event)
+ err = validate_group(event);
+ else
+ err = validate_event(event);
+ }
+ if (err) {
+ if (event->destroy)
+ event->destroy(event);
+ event->destroy = NULL;
+ }
+
+ if (READ_ONCE(x86_pmu.attr_rdpmc) &&
+ !(event->hw.flags & PERF_X86_EVENT_LARGE_PEBS))
+ event->hw.flags |= PERF_EVENT_FLAG_USER_READ_CNT;
+
+ return err;
+}
+
+void perf_clear_dirty_counters(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int i;
+
+ /* Don't need to clear the assigned counter. */
+ for (i = 0; i < cpuc->n_events; i++)
+ __clear_bit(cpuc->assign[i], cpuc->dirty);
+
+ if (bitmap_empty(cpuc->dirty, X86_PMC_IDX_MAX))
+ return;
+
+ for_each_set_bit(i, cpuc->dirty, X86_PMC_IDX_MAX) {
+ if (i >= INTEL_PMC_IDX_FIXED) {
+ /* Metrics and fake events don't have corresponding HW counters. */
+ if ((i - INTEL_PMC_IDX_FIXED) >= hybrid(cpuc->pmu, num_counters_fixed))
+ continue;
+
+ wrmsrl(MSR_ARCH_PERFMON_FIXED_CTR0 + (i - INTEL_PMC_IDX_FIXED), 0);
+ } else {
+ wrmsrl(x86_pmu_event_addr(i), 0);
+ }
+ }
+
+ bitmap_zero(cpuc->dirty, X86_PMC_IDX_MAX);
+}
+
+static void x86_pmu_event_mapped(struct perf_event *event, struct mm_struct *mm)
+{
+ if (!(event->hw.flags & PERF_EVENT_FLAG_USER_READ_CNT))
+ return;
+
+ /*
+ * This function relies on not being called concurrently in two
+ * tasks in the same mm. Otherwise one task could observe
+ * perf_rdpmc_allowed > 1 and return all the way back to
+ * userspace with CR4.PCE clear while another task is still
+ * doing on_each_cpu_mask() to propagate CR4.PCE.
+ *
+ * For now, this can't happen because all callers hold mmap_lock
+ * for write. If this changes, we'll need a different solution.
+ */
+ mmap_assert_write_locked(mm);
+
+ if (atomic_inc_return(&mm->context.perf_rdpmc_allowed) == 1)
+ on_each_cpu_mask(mm_cpumask(mm), cr4_update_pce, NULL, 1);
+}
+
+static void x86_pmu_event_unmapped(struct perf_event *event, struct mm_struct *mm)
+{
+ if (!(event->hw.flags & PERF_EVENT_FLAG_USER_READ_CNT))
+ return;
+
+ if (atomic_dec_and_test(&mm->context.perf_rdpmc_allowed))
+ on_each_cpu_mask(mm_cpumask(mm), cr4_update_pce, NULL, 1);
+}
+
+static int x86_pmu_event_idx(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (!(hwc->flags & PERF_EVENT_FLAG_USER_READ_CNT))
+ return 0;
+
+ if (is_metric_idx(hwc->idx))
+ return INTEL_PMC_FIXED_RDPMC_METRICS + 1;
+ else
+ return hwc->event_base_rdpmc + 1;
+}
+
+static ssize_t get_attr_rdpmc(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, 40, "%d\n", x86_pmu.attr_rdpmc);
+}
+
+static ssize_t set_attr_rdpmc(struct device *cdev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long val;
+ ssize_t ret;
+
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;
+
+ if (val > 2)
+ return -EINVAL;
+
+ if (x86_pmu.attr_rdpmc_broken)
+ return -ENOTSUPP;
+
+ if (val != x86_pmu.attr_rdpmc) {
+ /*
+ * Changing into or out of never available or always available,
+ * aka perf-event-bypassing mode. This path is extremely slow,
+ * but only root can trigger it, so it's okay.
+ */
+ if (val == 0)
+ static_branch_inc(&rdpmc_never_available_key);
+ else if (x86_pmu.attr_rdpmc == 0)
+ static_branch_dec(&rdpmc_never_available_key);
+
+ if (val == 2)
+ static_branch_inc(&rdpmc_always_available_key);
+ else if (x86_pmu.attr_rdpmc == 2)
+ static_branch_dec(&rdpmc_always_available_key);
+
+ on_each_cpu(cr4_update_pce, NULL, 1);
+ x86_pmu.attr_rdpmc = val;
+ }
+
+ return count;
+}
+
+static DEVICE_ATTR(rdpmc, S_IRUSR | S_IWUSR, get_attr_rdpmc, set_attr_rdpmc);
+
+static struct attribute *x86_pmu_attrs[] = {
+ &dev_attr_rdpmc.attr,
+ NULL,
+};
+
+static struct attribute_group x86_pmu_attr_group __ro_after_init = {
+ .attrs = x86_pmu_attrs,
+};
+
+static ssize_t max_precise_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", x86_pmu_max_precise());
+}
+
+static DEVICE_ATTR_RO(max_precise);
+
+static struct attribute *x86_pmu_caps_attrs[] = {
+ &dev_attr_max_precise.attr,
+ NULL
+};
+
+static struct attribute_group x86_pmu_caps_group __ro_after_init = {
+ .name = "caps",
+ .attrs = x86_pmu_caps_attrs,
+};
+
+static const struct attribute_group *x86_pmu_attr_groups[] = {
+ &x86_pmu_attr_group,
+ &x86_pmu_format_group,
+ &x86_pmu_events_group,
+ &x86_pmu_caps_group,
+ NULL,
+};
+
+static void x86_pmu_sched_task(struct perf_event_pmu_context *pmu_ctx, bool sched_in)
+{
+ static_call_cond(x86_pmu_sched_task)(pmu_ctx, sched_in);
+}
+
+static void x86_pmu_swap_task_ctx(struct perf_event_pmu_context *prev_epc,
+ struct perf_event_pmu_context *next_epc)
+{
+ static_call_cond(x86_pmu_swap_task_ctx)(prev_epc, next_epc);
+}
+
+void perf_check_microcode(void)
+{
+ if (x86_pmu.check_microcode)
+ x86_pmu.check_microcode();
+}
+
+static int x86_pmu_check_period(struct perf_event *event, u64 value)
+{
+ if (x86_pmu.check_period && x86_pmu.check_period(event, value))
+ return -EINVAL;
+
+ if (value && x86_pmu.limit_period) {
+ s64 left = value;
+ x86_pmu.limit_period(event, &left);
+ if (left > value)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int x86_pmu_aux_output_match(struct perf_event *event)
+{
+ if (!(pmu.capabilities & PERF_PMU_CAP_AUX_OUTPUT))
+ return 0;
+
+ if (x86_pmu.aux_output_match)
+ return x86_pmu.aux_output_match(event);
+
+ return 0;
+}
+
+static bool x86_pmu_filter(struct pmu *pmu, int cpu)
+{
+ bool ret = false;
+
+ static_call_cond(x86_pmu_filter)(pmu, cpu, &ret);
+
+ return ret;
+}
+
+static struct pmu pmu = {
+ .pmu_enable = x86_pmu_enable,
+ .pmu_disable = x86_pmu_disable,
+
+ .attr_groups = x86_pmu_attr_groups,
+
+ .event_init = x86_pmu_event_init,
+
+ .event_mapped = x86_pmu_event_mapped,
+ .event_unmapped = x86_pmu_event_unmapped,
+
+ .add = x86_pmu_add,
+ .del = x86_pmu_del,
+ .start = x86_pmu_start,
+ .stop = x86_pmu_stop,
+ .read = x86_pmu_read,
+
+ .start_txn = x86_pmu_start_txn,
+ .cancel_txn = x86_pmu_cancel_txn,
+ .commit_txn = x86_pmu_commit_txn,
+
+ .event_idx = x86_pmu_event_idx,
+ .sched_task = x86_pmu_sched_task,
+ .swap_task_ctx = x86_pmu_swap_task_ctx,
+ .check_period = x86_pmu_check_period,
+
+ .aux_output_match = x86_pmu_aux_output_match,
+
+ .filter = x86_pmu_filter,
+};
+
+void arch_perf_update_userpage(struct perf_event *event,
+ struct perf_event_mmap_page *userpg, u64 now)
+{
+ struct cyc2ns_data data;
+ u64 offset;
+
+ userpg->cap_user_time = 0;
+ userpg->cap_user_time_zero = 0;
+ userpg->cap_user_rdpmc =
+ !!(event->hw.flags & PERF_EVENT_FLAG_USER_READ_CNT);
+ userpg->pmc_width = x86_pmu.cntval_bits;
+
+ if (!using_native_sched_clock() || !sched_clock_stable())
+ return;
+
+ cyc2ns_read_begin(&data);
+
+ offset = data.cyc2ns_offset + __sched_clock_offset;
+
+ /*
+ * Internal timekeeping for enabled/running/stopped times
+ * is always in the local_clock domain.
+ */
+ userpg->cap_user_time = 1;
+ userpg->time_mult = data.cyc2ns_mul;
+ userpg->time_shift = data.cyc2ns_shift;
+ userpg->time_offset = offset - now;
+
+ /*
+ * cap_user_time_zero doesn't make sense when we're using a different
+ * time base for the records.
+ */
+ if (!event->attr.use_clockid) {
+ userpg->cap_user_time_zero = 1;
+ userpg->time_zero = offset;
+ }
+
+ cyc2ns_read_end();
+}
+
+/*
+ * Determine whether the regs were taken from an irq/exception handler rather
+ * than from perf_arch_fetch_caller_regs().
+ */
+static bool perf_hw_regs(struct pt_regs *regs)
+{
+ return regs->flags & X86_EFLAGS_FIXED;
+}
+
+void
+perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
+{
+ struct unwind_state state;
+ unsigned long addr;
+
+ if (perf_guest_state()) {
+ /* TODO: We don't support guest os callchain now */
+ return;
+ }
+
+ if (perf_callchain_store(entry, regs->ip))
+ return;
+
+ if (perf_hw_regs(regs))
+ unwind_start(&state, current, regs, NULL);
+ else
+ unwind_start(&state, current, NULL, (void *)regs->sp);
+
+ for (; !unwind_done(&state); unwind_next_frame(&state)) {
+ addr = unwind_get_return_address(&state);
+ if (!addr || perf_callchain_store(entry, addr))
+ return;
+ }
+}
+
+static inline int
+valid_user_frame(const void __user *fp, unsigned long size)
+{
+ return __access_ok(fp, size);
+}
+
+static unsigned long get_segment_base(unsigned int segment)
+{
+ struct desc_struct *desc;
+ unsigned int idx = segment >> 3;
+
+ if ((segment & SEGMENT_TI_MASK) == SEGMENT_LDT) {
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+ struct ldt_struct *ldt;
+
+ /* IRQs are off, so this synchronizes with smp_store_release */
+ ldt = READ_ONCE(current->active_mm->context.ldt);
+ if (!ldt || idx >= ldt->nr_entries)
+ return 0;
+
+ desc = &ldt->entries[idx];
+#else
+ return 0;
+#endif
+ } else {
+ if (idx >= GDT_ENTRIES)
+ return 0;
+
+ desc = raw_cpu_ptr(gdt_page.gdt) + idx;
+ }
+
+ return get_desc_base(desc);
+}
+
+#ifdef CONFIG_IA32_EMULATION
+
+#include <linux/compat.h>
+
+static inline int
+perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *entry)
+{
+ /* 32-bit process in 64-bit kernel. */
+ unsigned long ss_base, cs_base;
+ struct stack_frame_ia32 frame;
+ const struct stack_frame_ia32 __user *fp;
+
+ if (user_64bit_mode(regs))
+ return 0;
+
+ cs_base = get_segment_base(regs->cs);
+ ss_base = get_segment_base(regs->ss);
+
+ fp = compat_ptr(ss_base + regs->bp);
+ pagefault_disable();
+ while (entry->nr < entry->max_stack) {
+ if (!valid_user_frame(fp, sizeof(frame)))
+ break;
+
+ if (__get_user(frame.next_frame, &fp->next_frame))
+ break;
+ if (__get_user(frame.return_address, &fp->return_address))
+ break;
+
+ perf_callchain_store(entry, cs_base + frame.return_address);
+ fp = compat_ptr(ss_base + frame.next_frame);
+ }
+ pagefault_enable();
+ return 1;
+}
+#else
+static inline int
+perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *entry)
+{
+ return 0;
+}
+#endif
+
+void
+perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
+{
+ struct stack_frame frame;
+ const struct stack_frame __user *fp;
+
+ if (perf_guest_state()) {
+ /* TODO: We don't support guest os callchain now */
+ return;
+ }
+
+ /*
+ * We don't know what to do with VM86 stacks.. ignore them for now.
+ */
+ if (regs->flags & (X86_VM_MASK | PERF_EFLAGS_VM))
+ return;
+
+ fp = (void __user *)regs->bp;
+
+ perf_callchain_store(entry, regs->ip);
+
+ if (!nmi_uaccess_okay())
+ return;
+
+ if (perf_callchain_user32(regs, entry))
+ return;
+
+ pagefault_disable();
+ while (entry->nr < entry->max_stack) {
+ if (!valid_user_frame(fp, sizeof(frame)))
+ break;
+
+ if (__get_user(frame.next_frame, &fp->next_frame))
+ break;
+ if (__get_user(frame.return_address, &fp->return_address))
+ break;
+
+ perf_callchain_store(entry, frame.return_address);
+ fp = (void __user *)frame.next_frame;
+ }
+ pagefault_enable();
+}
+
+/*
+ * Deal with code segment offsets for the various execution modes:
+ *
+ * VM86 - the good olde 16 bit days, where the linear address is
+ * 20 bits and we use regs->ip + 0x10 * regs->cs.
+ *
+ * IA32 - Where we need to look at GDT/LDT segment descriptor tables
+ * to figure out what the 32bit base address is.
+ *
+ * X32 - has TIF_X32 set, but is running in x86_64
+ *
+ * X86_64 - CS,DS,SS,ES are all zero based.
+ */
+static unsigned long code_segment_base(struct pt_regs *regs)
+{
+ /*
+ * For IA32 we look at the GDT/LDT segment base to convert the
+ * effective IP to a linear address.
+ */
+
+#ifdef CONFIG_X86_32
+ /*
+ * If we are in VM86 mode, add the segment offset to convert to a
+ * linear address.
+ */
+ if (regs->flags & X86_VM_MASK)
+ return 0x10 * regs->cs;
+
+ if (user_mode(regs) && regs->cs != __USER_CS)
+ return get_segment_base(regs->cs);
+#else
+ if (user_mode(regs) && !user_64bit_mode(regs) &&
+ regs->cs != __USER32_CS)
+ return get_segment_base(regs->cs);
+#endif
+ return 0;
+}
+
+unsigned long perf_instruction_pointer(struct pt_regs *regs)
+{
+ if (perf_guest_state())
+ return perf_guest_get_ip();
+
+ return regs->ip + code_segment_base(regs);
+}
+
+unsigned long perf_misc_flags(struct pt_regs *regs)
+{
+ unsigned int guest_state = perf_guest_state();
+ int misc = 0;
+
+ if (guest_state) {
+ if (guest_state & PERF_GUEST_USER)
+ misc |= PERF_RECORD_MISC_GUEST_USER;
+ else
+ misc |= PERF_RECORD_MISC_GUEST_KERNEL;
+ } else {
+ if (user_mode(regs))
+ misc |= PERF_RECORD_MISC_USER;
+ else
+ misc |= PERF_RECORD_MISC_KERNEL;
+ }
+
+ if (regs->flags & PERF_EFLAGS_EXACT)
+ misc |= PERF_RECORD_MISC_EXACT_IP;
+
+ return misc;
+}
+
+void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap)
+{
+ /* This API doesn't currently support enumerating hybrid PMUs. */
+ if (WARN_ON_ONCE(cpu_feature_enabled(X86_FEATURE_HYBRID_CPU)) ||
+ !x86_pmu_initialized()) {
+ memset(cap, 0, sizeof(*cap));
+ return;
+ }
+
+ /*
+ * Note, hybrid CPU models get tracked as having hybrid PMUs even when
+ * all E-cores are disabled via BIOS. When E-cores are disabled, the
+ * base PMU holds the correct number of counters for P-cores.
+ */
+ cap->version = x86_pmu.version;
+ cap->num_counters_gp = x86_pmu.num_counters;
+ cap->num_counters_fixed = x86_pmu.num_counters_fixed;
+ cap->bit_width_gp = x86_pmu.cntval_bits;
+ cap->bit_width_fixed = x86_pmu.cntval_bits;
+ cap->events_mask = (unsigned int)x86_pmu.events_maskl;
+ cap->events_mask_len = x86_pmu.events_mask_len;
+ cap->pebs_ept = x86_pmu.pebs_ept;
+}
+EXPORT_SYMBOL_GPL(perf_get_x86_pmu_capability);
+
+u64 perf_get_hw_event_config(int hw_event)
+{
+ int max = x86_pmu.max_events;
+
+ if (hw_event < max)
+ return x86_pmu.event_map(array_index_nospec(hw_event, max));
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(perf_get_hw_event_config);
diff --git a/arch/x86/events/intel/Makefile b/arch/x86/events/intel/Makefile
new file mode 100644
index 000000000000..10bde6c5abb2
--- /dev/null
+++ b/arch/x86/events/intel/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-$(CONFIG_CPU_SUP_INTEL) += core.o bts.o
+obj-$(CONFIG_CPU_SUP_INTEL) += ds.o knc.o
+obj-$(CONFIG_CPU_SUP_INTEL) += lbr.o p4.o p6.o pt.o
+obj-$(CONFIG_PERF_EVENTS_INTEL_UNCORE) += intel-uncore.o
+intel-uncore-objs := uncore.o uncore_nhmex.o uncore_snb.o uncore_snbep.o uncore_discovery.o
+obj-$(CONFIG_PERF_EVENTS_INTEL_CSTATE) += intel-cstate.o
+intel-cstate-objs := cstate.o
diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c
new file mode 100644
index 000000000000..974e917e65b2
--- /dev/null
+++ b/arch/x86/events/intel/bts.c
@@ -0,0 +1,625 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * BTS PMU driver for perf
+ * Copyright (c) 2013-2014, Intel Corporation.
+ */
+
+#undef DEBUG
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/bitops.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/debugfs.h>
+#include <linux/device.h>
+#include <linux/coredump.h>
+
+#include <linux/sizes.h>
+#include <asm/perf_event.h>
+
+#include "../perf_event.h"
+
+struct bts_ctx {
+ struct perf_output_handle handle;
+ struct debug_store ds_back;
+ int state;
+};
+
+/* BTS context states: */
+enum {
+ /* no ongoing AUX transactions */
+ BTS_STATE_STOPPED = 0,
+ /* AUX transaction is on, BTS tracing is disabled */
+ BTS_STATE_INACTIVE,
+ /* AUX transaction is on, BTS tracing is running */
+ BTS_STATE_ACTIVE,
+};
+
+static DEFINE_PER_CPU(struct bts_ctx, bts_ctx);
+
+#define BTS_RECORD_SIZE 24
+#define BTS_SAFETY_MARGIN 4080
+
+struct bts_phys {
+ struct page *page;
+ unsigned long size;
+ unsigned long offset;
+ unsigned long displacement;
+};
+
+struct bts_buffer {
+ size_t real_size; /* multiple of BTS_RECORD_SIZE */
+ unsigned int nr_pages;
+ unsigned int nr_bufs;
+ unsigned int cur_buf;
+ bool snapshot;
+ local_t data_size;
+ local_t head;
+ unsigned long end;
+ void **data_pages;
+ struct bts_phys buf[];
+};
+
+static struct pmu bts_pmu;
+
+static int buf_nr_pages(struct page *page)
+{
+ if (!PagePrivate(page))
+ return 1;
+
+ return 1 << page_private(page);
+}
+
+static size_t buf_size(struct page *page)
+{
+ return buf_nr_pages(page) * PAGE_SIZE;
+}
+
+static void *
+bts_buffer_setup_aux(struct perf_event *event, void **pages,
+ int nr_pages, bool overwrite)
+{
+ struct bts_buffer *buf;
+ struct page *page;
+ int cpu = event->cpu;
+ int node = (cpu == -1) ? cpu : cpu_to_node(cpu);
+ unsigned long offset;
+ size_t size = nr_pages << PAGE_SHIFT;
+ int pg, nbuf, pad;
+
+ /* count all the high order buffers */
+ for (pg = 0, nbuf = 0; pg < nr_pages;) {
+ page = virt_to_page(pages[pg]);
+ pg += buf_nr_pages(page);
+ nbuf++;
+ }
+
+ /*
+ * to avoid interrupts in overwrite mode, only allow one physical
+ */
+ if (overwrite && nbuf > 1)
+ return NULL;
+
+ buf = kzalloc_node(offsetof(struct bts_buffer, buf[nbuf]), GFP_KERNEL, node);
+ if (!buf)
+ return NULL;
+
+ buf->nr_pages = nr_pages;
+ buf->nr_bufs = nbuf;
+ buf->snapshot = overwrite;
+ buf->data_pages = pages;
+ buf->real_size = size - size % BTS_RECORD_SIZE;
+
+ for (pg = 0, nbuf = 0, offset = 0, pad = 0; nbuf < buf->nr_bufs; nbuf++) {
+ unsigned int __nr_pages;
+
+ page = virt_to_page(pages[pg]);
+ __nr_pages = buf_nr_pages(page);
+ buf->buf[nbuf].page = page;
+ buf->buf[nbuf].offset = offset;
+ buf->buf[nbuf].displacement = (pad ? BTS_RECORD_SIZE - pad : 0);
+ buf->buf[nbuf].size = buf_size(page) - buf->buf[nbuf].displacement;
+ pad = buf->buf[nbuf].size % BTS_RECORD_SIZE;
+ buf->buf[nbuf].size -= pad;
+
+ pg += __nr_pages;
+ offset += __nr_pages << PAGE_SHIFT;
+ }
+
+ return buf;
+}
+
+static void bts_buffer_free_aux(void *data)
+{
+ kfree(data);
+}
+
+static unsigned long bts_buffer_offset(struct bts_buffer *buf, unsigned int idx)
+{
+ return buf->buf[idx].offset + buf->buf[idx].displacement;
+}
+
+static void
+bts_config_buffer(struct bts_buffer *buf)
+{
+ int cpu = raw_smp_processor_id();
+ struct debug_store *ds = per_cpu(cpu_hw_events, cpu).ds;
+ struct bts_phys *phys = &buf->buf[buf->cur_buf];
+ unsigned long index, thresh = 0, end = phys->size;
+ struct page *page = phys->page;
+
+ index = local_read(&buf->head);
+
+ if (!buf->snapshot) {
+ if (buf->end < phys->offset + buf_size(page))
+ end = buf->end - phys->offset - phys->displacement;
+
+ index -= phys->offset + phys->displacement;
+
+ if (end - index > BTS_SAFETY_MARGIN)
+ thresh = end - BTS_SAFETY_MARGIN;
+ else if (end - index > BTS_RECORD_SIZE)
+ thresh = end - BTS_RECORD_SIZE;
+ else
+ thresh = end;
+ }
+
+ ds->bts_buffer_base = (u64)(long)page_address(page) + phys->displacement;
+ ds->bts_index = ds->bts_buffer_base + index;
+ ds->bts_absolute_maximum = ds->bts_buffer_base + end;
+ ds->bts_interrupt_threshold = !buf->snapshot
+ ? ds->bts_buffer_base + thresh
+ : ds->bts_absolute_maximum + BTS_RECORD_SIZE;
+}
+
+static void bts_buffer_pad_out(struct bts_phys *phys, unsigned long head)
+{
+ unsigned long index = head - phys->offset;
+
+ memset(page_address(phys->page) + index, 0, phys->size - index);
+}
+
+static void bts_update(struct bts_ctx *bts)
+{
+ int cpu = raw_smp_processor_id();
+ struct debug_store *ds = per_cpu(cpu_hw_events, cpu).ds;
+ struct bts_buffer *buf = perf_get_aux(&bts->handle);
+ unsigned long index = ds->bts_index - ds->bts_buffer_base, old, head;
+
+ if (!buf)
+ return;
+
+ head = index + bts_buffer_offset(buf, buf->cur_buf);
+ old = local_xchg(&buf->head, head);
+
+ if (!buf->snapshot) {
+ if (old == head)
+ return;
+
+ if (ds->bts_index >= ds->bts_absolute_maximum)
+ perf_aux_output_flag(&bts->handle,
+ PERF_AUX_FLAG_TRUNCATED);
+
+ /*
+ * old and head are always in the same physical buffer, so we
+ * can subtract them to get the data size.
+ */
+ local_add(head - old, &buf->data_size);
+ } else {
+ local_set(&buf->data_size, head);
+ }
+
+ /*
+ * Since BTS is coherent, just add compiler barrier to ensure
+ * BTS updating is ordered against bts::handle::event.
+ */
+ barrier();
+}
+
+static int
+bts_buffer_reset(struct bts_buffer *buf, struct perf_output_handle *handle);
+
+/*
+ * Ordering PMU callbacks wrt themselves and the PMI is done by means
+ * of bts::state, which:
+ * - is set when bts::handle::event is valid, that is, between
+ * perf_aux_output_begin() and perf_aux_output_end();
+ * - is zero otherwise;
+ * - is ordered against bts::handle::event with a compiler barrier.
+ */
+
+static void __bts_event_start(struct perf_event *event)
+{
+ struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
+ struct bts_buffer *buf = perf_get_aux(&bts->handle);
+ u64 config = 0;
+
+ if (!buf->snapshot)
+ config |= ARCH_PERFMON_EVENTSEL_INT;
+ if (!event->attr.exclude_kernel)
+ config |= ARCH_PERFMON_EVENTSEL_OS;
+ if (!event->attr.exclude_user)
+ config |= ARCH_PERFMON_EVENTSEL_USR;
+
+ bts_config_buffer(buf);
+
+ /*
+ * local barrier to make sure that ds configuration made it
+ * before we enable BTS and bts::state goes ACTIVE
+ */
+ wmb();
+
+ /* INACTIVE/STOPPED -> ACTIVE */
+ WRITE_ONCE(bts->state, BTS_STATE_ACTIVE);
+
+ intel_pmu_enable_bts(config);
+
+}
+
+static void bts_event_start(struct perf_event *event, int flags)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
+ struct bts_buffer *buf;
+
+ buf = perf_aux_output_begin(&bts->handle, event);
+ if (!buf)
+ goto fail_stop;
+
+ if (bts_buffer_reset(buf, &bts->handle))
+ goto fail_end_stop;
+
+ bts->ds_back.bts_buffer_base = cpuc->ds->bts_buffer_base;
+ bts->ds_back.bts_absolute_maximum = cpuc->ds->bts_absolute_maximum;
+ bts->ds_back.bts_interrupt_threshold = cpuc->ds->bts_interrupt_threshold;
+
+ perf_event_itrace_started(event);
+ event->hw.state = 0;
+
+ __bts_event_start(event);
+
+ return;
+
+fail_end_stop:
+ perf_aux_output_end(&bts->handle, 0);
+
+fail_stop:
+ event->hw.state = PERF_HES_STOPPED;
+}
+
+static void __bts_event_stop(struct perf_event *event, int state)
+{
+ struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
+
+ /* ACTIVE -> INACTIVE(PMI)/STOPPED(->stop()) */
+ WRITE_ONCE(bts->state, state);
+
+ /*
+ * No extra synchronization is mandated by the documentation to have
+ * BTS data stores globally visible.
+ */
+ intel_pmu_disable_bts();
+}
+
+static void bts_event_stop(struct perf_event *event, int flags)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
+ struct bts_buffer *buf = NULL;
+ int state = READ_ONCE(bts->state);
+
+ if (state == BTS_STATE_ACTIVE)
+ __bts_event_stop(event, BTS_STATE_STOPPED);
+
+ if (state != BTS_STATE_STOPPED)
+ buf = perf_get_aux(&bts->handle);
+
+ event->hw.state |= PERF_HES_STOPPED;
+
+ if (flags & PERF_EF_UPDATE) {
+ bts_update(bts);
+
+ if (buf) {
+ if (buf->snapshot)
+ bts->handle.head =
+ local_xchg(&buf->data_size,
+ buf->nr_pages << PAGE_SHIFT);
+ perf_aux_output_end(&bts->handle,
+ local_xchg(&buf->data_size, 0));
+ }
+
+ cpuc->ds->bts_index = bts->ds_back.bts_buffer_base;
+ cpuc->ds->bts_buffer_base = bts->ds_back.bts_buffer_base;
+ cpuc->ds->bts_absolute_maximum = bts->ds_back.bts_absolute_maximum;
+ cpuc->ds->bts_interrupt_threshold = bts->ds_back.bts_interrupt_threshold;
+ }
+}
+
+void intel_bts_enable_local(void)
+{
+ struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
+ int state = READ_ONCE(bts->state);
+
+ /*
+ * Here we transition from INACTIVE to ACTIVE;
+ * if we instead are STOPPED from the interrupt handler,
+ * stay that way. Can't be ACTIVE here though.
+ */
+ if (WARN_ON_ONCE(state == BTS_STATE_ACTIVE))
+ return;
+
+ if (state == BTS_STATE_STOPPED)
+ return;
+
+ if (bts->handle.event)
+ __bts_event_start(bts->handle.event);
+}
+
+void intel_bts_disable_local(void)
+{
+ struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
+
+ /*
+ * Here we transition from ACTIVE to INACTIVE;
+ * do nothing for STOPPED or INACTIVE.
+ */
+ if (READ_ONCE(bts->state) != BTS_STATE_ACTIVE)
+ return;
+
+ if (bts->handle.event)
+ __bts_event_stop(bts->handle.event, BTS_STATE_INACTIVE);
+}
+
+static int
+bts_buffer_reset(struct bts_buffer *buf, struct perf_output_handle *handle)
+{
+ unsigned long head, space, next_space, pad, gap, skip, wakeup;
+ unsigned int next_buf;
+ struct bts_phys *phys, *next_phys;
+ int ret;
+
+ if (buf->snapshot)
+ return 0;
+
+ head = handle->head & ((buf->nr_pages << PAGE_SHIFT) - 1);
+
+ phys = &buf->buf[buf->cur_buf];
+ space = phys->offset + phys->displacement + phys->size - head;
+ pad = space;
+ if (space > handle->size) {
+ space = handle->size;
+ space -= space % BTS_RECORD_SIZE;
+ }
+ if (space <= BTS_SAFETY_MARGIN) {
+ /* See if next phys buffer has more space */
+ next_buf = buf->cur_buf + 1;
+ if (next_buf >= buf->nr_bufs)
+ next_buf = 0;
+ next_phys = &buf->buf[next_buf];
+ gap = buf_size(phys->page) - phys->displacement - phys->size +
+ next_phys->displacement;
+ skip = pad + gap;
+ if (handle->size >= skip) {
+ next_space = next_phys->size;
+ if (next_space + skip > handle->size) {
+ next_space = handle->size - skip;
+ next_space -= next_space % BTS_RECORD_SIZE;
+ }
+ if (next_space > space || !space) {
+ if (pad)
+ bts_buffer_pad_out(phys, head);
+ ret = perf_aux_output_skip(handle, skip);
+ if (ret)
+ return ret;
+ /* Advance to next phys buffer */
+ phys = next_phys;
+ space = next_space;
+ head = phys->offset + phys->displacement;
+ /*
+ * After this, cur_buf and head won't match ds
+ * anymore, so we must not be racing with
+ * bts_update().
+ */
+ buf->cur_buf = next_buf;
+ local_set(&buf->head, head);
+ }
+ }
+ }
+
+ /* Don't go far beyond wakeup watermark */
+ wakeup = BTS_SAFETY_MARGIN + BTS_RECORD_SIZE + handle->wakeup -
+ handle->head;
+ if (space > wakeup) {
+ space = wakeup;
+ space -= space % BTS_RECORD_SIZE;
+ }
+
+ buf->end = head + space;
+
+ /*
+ * If we have no space, the lost notification would have been sent when
+ * we hit absolute_maximum - see bts_update()
+ */
+ if (!space)
+ return -ENOSPC;
+
+ return 0;
+}
+
+int intel_bts_interrupt(void)
+{
+ struct debug_store *ds = this_cpu_ptr(&cpu_hw_events)->ds;
+ struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
+ struct perf_event *event = bts->handle.event;
+ struct bts_buffer *buf;
+ s64 old_head;
+ int err = -ENOSPC, handled = 0;
+
+ /*
+ * The only surefire way of knowing if this NMI is ours is by checking
+ * the write ptr against the PMI threshold.
+ */
+ if (ds && (ds->bts_index >= ds->bts_interrupt_threshold))
+ handled = 1;
+
+ /*
+ * this is wrapped in intel_bts_enable_local/intel_bts_disable_local,
+ * so we can only be INACTIVE or STOPPED
+ */
+ if (READ_ONCE(bts->state) == BTS_STATE_STOPPED)
+ return handled;
+
+ buf = perf_get_aux(&bts->handle);
+ if (!buf)
+ return handled;
+
+ /*
+ * Skip snapshot counters: they don't use the interrupt, but
+ * there's no other way of telling, because the pointer will
+ * keep moving
+ */
+ if (buf->snapshot)
+ return 0;
+
+ old_head = local_read(&buf->head);
+ bts_update(bts);
+
+ /* no new data */
+ if (old_head == local_read(&buf->head))
+ return handled;
+
+ perf_aux_output_end(&bts->handle, local_xchg(&buf->data_size, 0));
+
+ buf = perf_aux_output_begin(&bts->handle, event);
+ if (buf)
+ err = bts_buffer_reset(buf, &bts->handle);
+
+ if (err) {
+ WRITE_ONCE(bts->state, BTS_STATE_STOPPED);
+
+ if (buf) {
+ /*
+ * BTS_STATE_STOPPED should be visible before
+ * cleared handle::event
+ */
+ barrier();
+ perf_aux_output_end(&bts->handle, 0);
+ }
+ }
+
+ return 1;
+}
+
+static void bts_event_del(struct perf_event *event, int mode)
+{
+ bts_event_stop(event, PERF_EF_UPDATE);
+}
+
+static int bts_event_add(struct perf_event *event, int mode)
+{
+ struct bts_ctx *bts = this_cpu_ptr(&bts_ctx);
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event *hwc = &event->hw;
+
+ event->hw.state = PERF_HES_STOPPED;
+
+ if (test_bit(INTEL_PMC_IDX_FIXED_BTS, cpuc->active_mask))
+ return -EBUSY;
+
+ if (bts->handle.event)
+ return -EBUSY;
+
+ if (mode & PERF_EF_START) {
+ bts_event_start(event, 0);
+ if (hwc->state & PERF_HES_STOPPED)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void bts_event_destroy(struct perf_event *event)
+{
+ x86_release_hardware();
+ x86_del_exclusive(x86_lbr_exclusive_bts);
+}
+
+static int bts_event_init(struct perf_event *event)
+{
+ int ret;
+
+ if (event->attr.type != bts_pmu.type)
+ return -ENOENT;
+
+ /*
+ * BTS leaks kernel addresses even when CPL0 tracing is
+ * disabled, so disallow intel_bts driver for unprivileged
+ * users on paranoid systems since it provides trace data
+ * to the user in a zero-copy fashion.
+ *
+ * Note that the default paranoia setting permits unprivileged
+ * users to profile the kernel.
+ */
+ if (event->attr.exclude_kernel) {
+ ret = perf_allow_kernel(&event->attr);
+ if (ret)
+ return ret;
+ }
+
+ if (x86_add_exclusive(x86_lbr_exclusive_bts))
+ return -EBUSY;
+
+ ret = x86_reserve_hardware();
+ if (ret) {
+ x86_del_exclusive(x86_lbr_exclusive_bts);
+ return ret;
+ }
+
+ event->destroy = bts_event_destroy;
+
+ return 0;
+}
+
+static void bts_event_read(struct perf_event *event)
+{
+}
+
+static __init int bts_init(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_DTES64) || !x86_pmu.bts)
+ return -ENODEV;
+
+ if (boot_cpu_has(X86_FEATURE_PTI)) {
+ /*
+ * BTS hardware writes through a virtual memory map we must
+ * either use the kernel physical map, or the user mapping of
+ * the AUX buffer.
+ *
+ * However, since this driver supports per-CPU and per-task inherit
+ * we cannot use the user mapping since it will not be available
+ * if we're not running the owning process.
+ *
+ * With PTI we can't use the kernel map either, because its not
+ * there when we run userspace.
+ *
+ * For now, disable this driver when using PTI.
+ */
+ return -ENODEV;
+ }
+
+ bts_pmu.capabilities = PERF_PMU_CAP_AUX_NO_SG | PERF_PMU_CAP_ITRACE |
+ PERF_PMU_CAP_EXCLUSIVE;
+ bts_pmu.task_ctx_nr = perf_sw_context;
+ bts_pmu.event_init = bts_event_init;
+ bts_pmu.add = bts_event_add;
+ bts_pmu.del = bts_event_del;
+ bts_pmu.start = bts_event_start;
+ bts_pmu.stop = bts_event_stop;
+ bts_pmu.read = bts_event_read;
+ bts_pmu.setup_aux = bts_buffer_setup_aux;
+ bts_pmu.free_aux = bts_buffer_free_aux;
+
+ return perf_pmu_register(&bts_pmu, "intel_bts", -1);
+}
+arch_initcall(bts_init);
diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c
new file mode 100644
index 000000000000..070cc4ef2672
--- /dev/null
+++ b/arch/x86/events/intel/core.c
@@ -0,0 +1,6829 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Per core/cpu state
+ *
+ * Used to coordinate shared registers between HT threads or
+ * among events on a single PMU.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+#include <linux/nmi.h>
+#include <linux/kvm_host.h>
+
+#include <asm/cpufeature.h>
+#include <asm/hardirq.h>
+#include <asm/intel-family.h>
+#include <asm/intel_pt.h>
+#include <asm/apic.h>
+#include <asm/cpu_device_id.h>
+
+#include "../perf_event.h"
+
+/*
+ * Intel PerfMon, used on Core and later.
+ */
+static u64 intel_perfmon_event_map[PERF_COUNT_HW_MAX] __read_mostly =
+{
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x003c,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0x4f2e,
+ [PERF_COUNT_HW_CACHE_MISSES] = 0x412e,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4,
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5,
+ [PERF_COUNT_HW_BUS_CYCLES] = 0x013c,
+ [PERF_COUNT_HW_REF_CPU_CYCLES] = 0x0300, /* pseudo-encoding */
+};
+
+static struct event_constraint intel_core_event_constraints[] __read_mostly =
+{
+ INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */
+ INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */
+ INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */
+ INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */
+ INTEL_EVENT_CONSTRAINT(0x19, 0x2), /* DELAYED_BYPASS */
+ INTEL_EVENT_CONSTRAINT(0xc1, 0x1), /* FP_COMP_INSTR_RET */
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint intel_core2_event_constraints[] __read_mostly =
+{
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ INTEL_EVENT_CONSTRAINT(0x10, 0x1), /* FP_COMP_OPS_EXE */
+ INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */
+ INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */
+ INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */
+ INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */
+ INTEL_EVENT_CONSTRAINT(0x18, 0x1), /* IDLE_DURING_DIV */
+ INTEL_EVENT_CONSTRAINT(0x19, 0x2), /* DELAYED_BYPASS */
+ INTEL_EVENT_CONSTRAINT(0xa1, 0x1), /* RS_UOPS_DISPATCH_CYCLES */
+ INTEL_EVENT_CONSTRAINT(0xc9, 0x1), /* ITLB_MISS_RETIRED (T30-9) */
+ INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED */
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint intel_nehalem_event_constraints[] __read_mostly =
+{
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ INTEL_EVENT_CONSTRAINT(0x40, 0x3), /* L1D_CACHE_LD */
+ INTEL_EVENT_CONSTRAINT(0x41, 0x3), /* L1D_CACHE_ST */
+ INTEL_EVENT_CONSTRAINT(0x42, 0x3), /* L1D_CACHE_LOCK */
+ INTEL_EVENT_CONSTRAINT(0x43, 0x3), /* L1D_ALL_REF */
+ INTEL_EVENT_CONSTRAINT(0x48, 0x3), /* L1D_PEND_MISS */
+ INTEL_EVENT_CONSTRAINT(0x4e, 0x3), /* L1D_PREFETCH */
+ INTEL_EVENT_CONSTRAINT(0x51, 0x3), /* L1D */
+ INTEL_EVENT_CONSTRAINT(0x63, 0x3), /* CACHE_LOCK_CYCLES */
+ EVENT_CONSTRAINT_END
+};
+
+static struct extra_reg intel_nehalem_extra_regs[] __read_mostly =
+{
+ /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0xffff, RSP_0),
+ INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x100b),
+ EVENT_EXTRA_END
+};
+
+static struct event_constraint intel_westmere_event_constraints[] __read_mostly =
+{
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ INTEL_EVENT_CONSTRAINT(0x51, 0x3), /* L1D */
+ INTEL_EVENT_CONSTRAINT(0x60, 0x1), /* OFFCORE_REQUESTS_OUTSTANDING */
+ INTEL_EVENT_CONSTRAINT(0x63, 0x3), /* CACHE_LOCK_CYCLES */
+ INTEL_EVENT_CONSTRAINT(0xb3, 0x1), /* SNOOPQ_REQUEST_OUTSTANDING */
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint intel_snb_event_constraints[] __read_mostly =
+{
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ INTEL_UEVENT_CONSTRAINT(0x04a3, 0xf), /* CYCLE_ACTIVITY.CYCLES_NO_DISPATCH */
+ INTEL_UEVENT_CONSTRAINT(0x05a3, 0xf), /* CYCLE_ACTIVITY.STALLS_L2_PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x02a3, 0x4), /* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x06a3, 0x4), /* CYCLE_ACTIVITY.STALLS_L1D_PENDING */
+ INTEL_EVENT_CONSTRAINT(0x48, 0x4), /* L1D_PEND_MISS.PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PREC_DIST */
+ INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.LOAD_LATENCY */
+ INTEL_UEVENT_CONSTRAINT(0x04a3, 0xf), /* CYCLE_ACTIVITY.CYCLES_NO_DISPATCH */
+ INTEL_UEVENT_CONSTRAINT(0x02a3, 0x4), /* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */
+
+ /*
+ * When HT is off these events can only run on the bottom 4 counters
+ * When HT is on, they are impacted by the HT bug and require EXCL access
+ */
+ INTEL_EXCLEVT_CONSTRAINT(0xd0, 0xf), /* MEM_UOPS_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */
+
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint intel_ivb_event_constraints[] __read_mostly =
+{
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ INTEL_UEVENT_CONSTRAINT(0x0148, 0x4), /* L1D_PEND_MISS.PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x0279, 0xf), /* IDQ.EMPTY */
+ INTEL_UEVENT_CONSTRAINT(0x019c, 0xf), /* IDQ_UOPS_NOT_DELIVERED.CORE */
+ INTEL_UEVENT_CONSTRAINT(0x02a3, 0xf), /* CYCLE_ACTIVITY.CYCLES_LDM_PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x04a3, 0xf), /* CYCLE_ACTIVITY.CYCLES_NO_EXECUTE */
+ INTEL_UEVENT_CONSTRAINT(0x05a3, 0xf), /* CYCLE_ACTIVITY.STALLS_L2_PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x06a3, 0xf), /* CYCLE_ACTIVITY.STALLS_LDM_PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x08a3, 0x4), /* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x0ca3, 0x4), /* CYCLE_ACTIVITY.STALLS_L1D_PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PREC_DIST */
+
+ /*
+ * When HT is off these events can only run on the bottom 4 counters
+ * When HT is on, they are impacted by the HT bug and require EXCL access
+ */
+ INTEL_EXCLEVT_CONSTRAINT(0xd0, 0xf), /* MEM_UOPS_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */
+
+ EVENT_CONSTRAINT_END
+};
+
+static struct extra_reg intel_westmere_extra_regs[] __read_mostly =
+{
+ /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0xffff, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0xffff, RSP_1),
+ INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x100b),
+ EVENT_EXTRA_END
+};
+
+static struct event_constraint intel_v1_event_constraints[] __read_mostly =
+{
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint intel_gen_event_constraints[] __read_mostly =
+{
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint intel_v5_gen_event_constraints[] __read_mostly =
+{
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ FIXED_EVENT_CONSTRAINT(0x0400, 3), /* SLOTS */
+ FIXED_EVENT_CONSTRAINT(0x0500, 4),
+ FIXED_EVENT_CONSTRAINT(0x0600, 5),
+ FIXED_EVENT_CONSTRAINT(0x0700, 6),
+ FIXED_EVENT_CONSTRAINT(0x0800, 7),
+ FIXED_EVENT_CONSTRAINT(0x0900, 8),
+ FIXED_EVENT_CONSTRAINT(0x0a00, 9),
+ FIXED_EVENT_CONSTRAINT(0x0b00, 10),
+ FIXED_EVENT_CONSTRAINT(0x0c00, 11),
+ FIXED_EVENT_CONSTRAINT(0x0d00, 12),
+ FIXED_EVENT_CONSTRAINT(0x0e00, 13),
+ FIXED_EVENT_CONSTRAINT(0x0f00, 14),
+ FIXED_EVENT_CONSTRAINT(0x1000, 15),
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint intel_slm_event_constraints[] __read_mostly =
+{
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* pseudo CPU_CLK_UNHALTED.REF */
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint intel_skl_event_constraints[] = {
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ INTEL_UEVENT_CONSTRAINT(0x1c0, 0x2), /* INST_RETIRED.PREC_DIST */
+
+ /*
+ * when HT is off, these can only run on the bottom 4 counters
+ */
+ INTEL_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_INST_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_L3_HIT_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xcd, 0xf), /* MEM_TRANS_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xc6, 0xf), /* FRONTEND_RETIRED.* */
+
+ EVENT_CONSTRAINT_END
+};
+
+static struct extra_reg intel_knl_extra_regs[] __read_mostly = {
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x799ffbb6e7ull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x399ffbffe7ull, RSP_1),
+ EVENT_EXTRA_END
+};
+
+static struct extra_reg intel_snb_extra_regs[] __read_mostly = {
+ /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3f807f8fffull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0x3f807f8fffull, RSP_1),
+ INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd),
+ EVENT_EXTRA_END
+};
+
+static struct extra_reg intel_snbep_extra_regs[] __read_mostly = {
+ /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3fffff8fffull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0x3fffff8fffull, RSP_1),
+ INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd),
+ EVENT_EXTRA_END
+};
+
+static struct extra_reg intel_skl_extra_regs[] __read_mostly = {
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3fffff8fffull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0x3fffff8fffull, RSP_1),
+ INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd),
+ /*
+ * Note the low 8 bits eventsel code is not a continuous field, containing
+ * some #GPing bits. These are masked out.
+ */
+ INTEL_UEVENT_EXTRA_REG(0x01c6, MSR_PEBS_FRONTEND, 0x7fff17, FE),
+ EVENT_EXTRA_END
+};
+
+static struct event_constraint intel_icl_event_constraints[] = {
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x01c0, 0), /* old INST_RETIRED.PREC_DIST */
+ FIXED_EVENT_CONSTRAINT(0x0100, 0), /* INST_RETIRED.PREC_DIST */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ FIXED_EVENT_CONSTRAINT(0x0400, 3), /* SLOTS */
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_RETIRING, 0),
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_BAD_SPEC, 1),
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_FE_BOUND, 2),
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_BE_BOUND, 3),
+ INTEL_EVENT_CONSTRAINT_RANGE(0x03, 0x0a, 0xf),
+ INTEL_EVENT_CONSTRAINT_RANGE(0x1f, 0x28, 0xf),
+ INTEL_EVENT_CONSTRAINT(0x32, 0xf), /* SW_PREFETCH_ACCESS.* */
+ INTEL_EVENT_CONSTRAINT_RANGE(0x48, 0x56, 0xf),
+ INTEL_EVENT_CONSTRAINT_RANGE(0x60, 0x8b, 0xf),
+ INTEL_UEVENT_CONSTRAINT(0x04a3, 0xff), /* CYCLE_ACTIVITY.STALLS_TOTAL */
+ INTEL_UEVENT_CONSTRAINT(0x10a3, 0xff), /* CYCLE_ACTIVITY.CYCLES_MEM_ANY */
+ INTEL_UEVENT_CONSTRAINT(0x14a3, 0xff), /* CYCLE_ACTIVITY.STALLS_MEM_ANY */
+ INTEL_EVENT_CONSTRAINT(0xa3, 0xf), /* CYCLE_ACTIVITY.* */
+ INTEL_EVENT_CONSTRAINT_RANGE(0xa8, 0xb0, 0xf),
+ INTEL_EVENT_CONSTRAINT_RANGE(0xb7, 0xbd, 0xf),
+ INTEL_EVENT_CONSTRAINT_RANGE(0xd0, 0xe6, 0xf),
+ INTEL_EVENT_CONSTRAINT(0xef, 0xf),
+ INTEL_EVENT_CONSTRAINT_RANGE(0xf0, 0xf4, 0xf),
+ EVENT_CONSTRAINT_END
+};
+
+static struct extra_reg intel_icl_extra_regs[] __read_mostly = {
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3fffffbfffull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0x3fffffbfffull, RSP_1),
+ INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd),
+ INTEL_UEVENT_EXTRA_REG(0x01c6, MSR_PEBS_FRONTEND, 0x7fff17, FE),
+ EVENT_EXTRA_END
+};
+
+static struct extra_reg intel_spr_extra_regs[] __read_mostly = {
+ INTEL_UEVENT_EXTRA_REG(0x012a, MSR_OFFCORE_RSP_0, 0x3fffffffffull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x012b, MSR_OFFCORE_RSP_1, 0x3fffffffffull, RSP_1),
+ INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd),
+ INTEL_UEVENT_EXTRA_REG(0x01c6, MSR_PEBS_FRONTEND, 0x7fff1f, FE),
+ INTEL_UEVENT_EXTRA_REG(0x40ad, MSR_PEBS_FRONTEND, 0x7, FE),
+ INTEL_UEVENT_EXTRA_REG(0x04c2, MSR_PEBS_FRONTEND, 0x8, FE),
+ EVENT_EXTRA_END
+};
+
+static struct event_constraint intel_spr_event_constraints[] = {
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x0100, 0), /* INST_RETIRED.PREC_DIST */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ FIXED_EVENT_CONSTRAINT(0x0400, 3), /* SLOTS */
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_RETIRING, 0),
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_BAD_SPEC, 1),
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_FE_BOUND, 2),
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_BE_BOUND, 3),
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_HEAVY_OPS, 4),
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_BR_MISPREDICT, 5),
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_FETCH_LAT, 6),
+ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_MEM_BOUND, 7),
+
+ INTEL_EVENT_CONSTRAINT(0x2e, 0xff),
+ INTEL_EVENT_CONSTRAINT(0x3c, 0xff),
+ /*
+ * Generally event codes < 0x90 are restricted to counters 0-3.
+ * The 0x2E and 0x3C are exception, which has no restriction.
+ */
+ INTEL_EVENT_CONSTRAINT_RANGE(0x01, 0x8f, 0xf),
+
+ INTEL_UEVENT_CONSTRAINT(0x01a3, 0xf),
+ INTEL_UEVENT_CONSTRAINT(0x02a3, 0xf),
+ INTEL_UEVENT_CONSTRAINT(0x08a3, 0xf),
+ INTEL_UEVENT_CONSTRAINT(0x04a4, 0x1),
+ INTEL_UEVENT_CONSTRAINT(0x08a4, 0x1),
+ INTEL_UEVENT_CONSTRAINT(0x02cd, 0x1),
+ INTEL_EVENT_CONSTRAINT(0xce, 0x1),
+ INTEL_EVENT_CONSTRAINT_RANGE(0xd0, 0xdf, 0xf),
+ /*
+ * Generally event codes >= 0x90 are likely to have no restrictions.
+ * The exception are defined as above.
+ */
+ INTEL_EVENT_CONSTRAINT_RANGE(0x90, 0xfe, 0xff),
+
+ EVENT_CONSTRAINT_END
+};
+
+
+EVENT_ATTR_STR(mem-loads, mem_ld_nhm, "event=0x0b,umask=0x10,ldlat=3");
+EVENT_ATTR_STR(mem-loads, mem_ld_snb, "event=0xcd,umask=0x1,ldlat=3");
+EVENT_ATTR_STR(mem-stores, mem_st_snb, "event=0xcd,umask=0x2");
+
+static struct attribute *nhm_mem_events_attrs[] = {
+ EVENT_PTR(mem_ld_nhm),
+ NULL,
+};
+
+/*
+ * topdown events for Intel Core CPUs.
+ *
+ * The events are all in slots, which is a free slot in a 4 wide
+ * pipeline. Some events are already reported in slots, for cycle
+ * events we multiply by the pipeline width (4).
+ *
+ * With Hyper Threading on, topdown metrics are either summed or averaged
+ * between the threads of a core: (count_t0 + count_t1).
+ *
+ * For the average case the metric is always scaled to pipeline width,
+ * so we use factor 2 ((count_t0 + count_t1) / 2 * 4)
+ */
+
+EVENT_ATTR_STR_HT(topdown-total-slots, td_total_slots,
+ "event=0x3c,umask=0x0", /* cpu_clk_unhalted.thread */
+ "event=0x3c,umask=0x0,any=1"); /* cpu_clk_unhalted.thread_any */
+EVENT_ATTR_STR_HT(topdown-total-slots.scale, td_total_slots_scale, "4", "2");
+EVENT_ATTR_STR(topdown-slots-issued, td_slots_issued,
+ "event=0xe,umask=0x1"); /* uops_issued.any */
+EVENT_ATTR_STR(topdown-slots-retired, td_slots_retired,
+ "event=0xc2,umask=0x2"); /* uops_retired.retire_slots */
+EVENT_ATTR_STR(topdown-fetch-bubbles, td_fetch_bubbles,
+ "event=0x9c,umask=0x1"); /* idq_uops_not_delivered_core */
+EVENT_ATTR_STR_HT(topdown-recovery-bubbles, td_recovery_bubbles,
+ "event=0xd,umask=0x3,cmask=1", /* int_misc.recovery_cycles */
+ "event=0xd,umask=0x3,cmask=1,any=1"); /* int_misc.recovery_cycles_any */
+EVENT_ATTR_STR_HT(topdown-recovery-bubbles.scale, td_recovery_bubbles_scale,
+ "4", "2");
+
+EVENT_ATTR_STR(slots, slots, "event=0x00,umask=0x4");
+EVENT_ATTR_STR(topdown-retiring, td_retiring, "event=0x00,umask=0x80");
+EVENT_ATTR_STR(topdown-bad-spec, td_bad_spec, "event=0x00,umask=0x81");
+EVENT_ATTR_STR(topdown-fe-bound, td_fe_bound, "event=0x00,umask=0x82");
+EVENT_ATTR_STR(topdown-be-bound, td_be_bound, "event=0x00,umask=0x83");
+EVENT_ATTR_STR(topdown-heavy-ops, td_heavy_ops, "event=0x00,umask=0x84");
+EVENT_ATTR_STR(topdown-br-mispredict, td_br_mispredict, "event=0x00,umask=0x85");
+EVENT_ATTR_STR(topdown-fetch-lat, td_fetch_lat, "event=0x00,umask=0x86");
+EVENT_ATTR_STR(topdown-mem-bound, td_mem_bound, "event=0x00,umask=0x87");
+
+static struct attribute *snb_events_attrs[] = {
+ EVENT_PTR(td_slots_issued),
+ EVENT_PTR(td_slots_retired),
+ EVENT_PTR(td_fetch_bubbles),
+ EVENT_PTR(td_total_slots),
+ EVENT_PTR(td_total_slots_scale),
+ EVENT_PTR(td_recovery_bubbles),
+ EVENT_PTR(td_recovery_bubbles_scale),
+ NULL,
+};
+
+static struct attribute *snb_mem_events_attrs[] = {
+ EVENT_PTR(mem_ld_snb),
+ EVENT_PTR(mem_st_snb),
+ NULL,
+};
+
+static struct event_constraint intel_hsw_event_constraints[] = {
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ INTEL_UEVENT_CONSTRAINT(0x148, 0x4), /* L1D_PEND_MISS.PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PREC_DIST */
+ INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.LOAD_LATENCY */
+ /* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x08a3, 0x4),
+ /* CYCLE_ACTIVITY.STALLS_L1D_PENDING */
+ INTEL_UEVENT_CONSTRAINT(0x0ca3, 0x4),
+ /* CYCLE_ACTIVITY.CYCLES_NO_EXECUTE */
+ INTEL_UEVENT_CONSTRAINT(0x04a3, 0xf),
+
+ /*
+ * When HT is off these events can only run on the bottom 4 counters
+ * When HT is on, they are impacted by the HT bug and require EXCL access
+ */
+ INTEL_EXCLEVT_CONSTRAINT(0xd0, 0xf), /* MEM_UOPS_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */
+
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint intel_bdw_event_constraints[] = {
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */
+ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */
+ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */
+ INTEL_UEVENT_CONSTRAINT(0x148, 0x4), /* L1D_PEND_MISS.PENDING */
+ INTEL_UBIT_EVENT_CONSTRAINT(0x8a3, 0x4), /* CYCLE_ACTIVITY.CYCLES_L1D_MISS */
+ /*
+ * when HT is off, these can only run on the bottom 4 counters
+ */
+ INTEL_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_INST_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_L3_HIT_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xcd, 0xf), /* MEM_TRANS_RETIRED.* */
+ EVENT_CONSTRAINT_END
+};
+
+static u64 intel_pmu_event_map(int hw_event)
+{
+ return intel_perfmon_event_map[hw_event];
+}
+
+static __initconst const u64 spr_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x81d0,
+ [ C(RESULT_MISS) ] = 0xe124,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x82d0,
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_MISS) ] = 0xe424,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x12a,
+ [ C(RESULT_MISS) ] = 0x12a,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x12a,
+ [ C(RESULT_MISS) ] = 0x12a,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x81d0,
+ [ C(RESULT_MISS) ] = 0xe12,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x82d0,
+ [ C(RESULT_MISS) ] = 0xe13,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = 0xe11,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x4c4,
+ [ C(RESULT_MISS) ] = 0x4c5,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x12a,
+ [ C(RESULT_MISS) ] = 0x12a,
+ },
+ },
+};
+
+static __initconst const u64 spr_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x10001,
+ [ C(RESULT_MISS) ] = 0x3fbfc00001,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x3f3ffc0002,
+ [ C(RESULT_MISS) ] = 0x3f3fc00002,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x10c000001,
+ [ C(RESULT_MISS) ] = 0x3fb3000001,
+ },
+ },
+};
+
+/*
+ * Notes on the events:
+ * - data reads do not include code reads (comparable to earlier tables)
+ * - data counts include speculative execution (except L1 write, dtlb, bpu)
+ * - remote node access includes remote memory, remote cache, remote mmio.
+ * - prefetches are not included in the counts.
+ * - icache miss does not include decoded icache
+ */
+
+#define SKL_DEMAND_DATA_RD BIT_ULL(0)
+#define SKL_DEMAND_RFO BIT_ULL(1)
+#define SKL_ANY_RESPONSE BIT_ULL(16)
+#define SKL_SUPPLIER_NONE BIT_ULL(17)
+#define SKL_L3_MISS_LOCAL_DRAM BIT_ULL(26)
+#define SKL_L3_MISS_REMOTE_HOP0_DRAM BIT_ULL(27)
+#define SKL_L3_MISS_REMOTE_HOP1_DRAM BIT_ULL(28)
+#define SKL_L3_MISS_REMOTE_HOP2P_DRAM BIT_ULL(29)
+#define SKL_L3_MISS (SKL_L3_MISS_LOCAL_DRAM| \
+ SKL_L3_MISS_REMOTE_HOP0_DRAM| \
+ SKL_L3_MISS_REMOTE_HOP1_DRAM| \
+ SKL_L3_MISS_REMOTE_HOP2P_DRAM)
+#define SKL_SPL_HIT BIT_ULL(30)
+#define SKL_SNOOP_NONE BIT_ULL(31)
+#define SKL_SNOOP_NOT_NEEDED BIT_ULL(32)
+#define SKL_SNOOP_MISS BIT_ULL(33)
+#define SKL_SNOOP_HIT_NO_FWD BIT_ULL(34)
+#define SKL_SNOOP_HIT_WITH_FWD BIT_ULL(35)
+#define SKL_SNOOP_HITM BIT_ULL(36)
+#define SKL_SNOOP_NON_DRAM BIT_ULL(37)
+#define SKL_ANY_SNOOP (SKL_SPL_HIT|SKL_SNOOP_NONE| \
+ SKL_SNOOP_NOT_NEEDED|SKL_SNOOP_MISS| \
+ SKL_SNOOP_HIT_NO_FWD|SKL_SNOOP_HIT_WITH_FWD| \
+ SKL_SNOOP_HITM|SKL_SNOOP_NON_DRAM)
+#define SKL_DEMAND_READ SKL_DEMAND_DATA_RD
+#define SKL_SNOOP_DRAM (SKL_SNOOP_NONE| \
+ SKL_SNOOP_NOT_NEEDED|SKL_SNOOP_MISS| \
+ SKL_SNOOP_HIT_NO_FWD|SKL_SNOOP_HIT_WITH_FWD| \
+ SKL_SNOOP_HITM|SKL_SPL_HIT)
+#define SKL_DEMAND_WRITE SKL_DEMAND_RFO
+#define SKL_LLC_ACCESS SKL_ANY_RESPONSE
+#define SKL_L3_MISS_REMOTE (SKL_L3_MISS_REMOTE_HOP0_DRAM| \
+ SKL_L3_MISS_REMOTE_HOP1_DRAM| \
+ SKL_L3_MISS_REMOTE_HOP2P_DRAM)
+
+static __initconst const u64 skl_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_INST_RETIRED.ALL_LOADS */
+ [ C(RESULT_MISS) ] = 0x151, /* L1D.REPLACEMENT */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_INST_RETIRED.ALL_STORES */
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x283, /* ICACHE_64B.MISS */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_INST_RETIRED.ALL_LOADS */
+ [ C(RESULT_MISS) ] = 0xe08, /* DTLB_LOAD_MISSES.WALK_COMPLETED */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_INST_RETIRED.ALL_STORES */
+ [ C(RESULT_MISS) ] = 0xe49, /* DTLB_STORE_MISSES.WALK_COMPLETED */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x2085, /* ITLB_MISSES.STLB_HIT */
+ [ C(RESULT_MISS) ] = 0xe85, /* ITLB_MISSES.WALK_COMPLETED */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0xc4, /* BR_INST_RETIRED.ALL_BRANCHES */
+ [ C(RESULT_MISS) ] = 0xc5, /* BR_MISP_RETIRED.ALL_BRANCHES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+};
+
+static __initconst const u64 skl_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = SKL_DEMAND_READ|
+ SKL_LLC_ACCESS|SKL_ANY_SNOOP,
+ [ C(RESULT_MISS) ] = SKL_DEMAND_READ|
+ SKL_L3_MISS|SKL_ANY_SNOOP|
+ SKL_SUPPLIER_NONE,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = SKL_DEMAND_WRITE|
+ SKL_LLC_ACCESS|SKL_ANY_SNOOP,
+ [ C(RESULT_MISS) ] = SKL_DEMAND_WRITE|
+ SKL_L3_MISS|SKL_ANY_SNOOP|
+ SKL_SUPPLIER_NONE,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = SKL_DEMAND_READ|
+ SKL_L3_MISS_LOCAL_DRAM|SKL_SNOOP_DRAM,
+ [ C(RESULT_MISS) ] = SKL_DEMAND_READ|
+ SKL_L3_MISS_REMOTE|SKL_SNOOP_DRAM,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = SKL_DEMAND_WRITE|
+ SKL_L3_MISS_LOCAL_DRAM|SKL_SNOOP_DRAM,
+ [ C(RESULT_MISS) ] = SKL_DEMAND_WRITE|
+ SKL_L3_MISS_REMOTE|SKL_SNOOP_DRAM,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+};
+
+#define SNB_DMND_DATA_RD (1ULL << 0)
+#define SNB_DMND_RFO (1ULL << 1)
+#define SNB_DMND_IFETCH (1ULL << 2)
+#define SNB_DMND_WB (1ULL << 3)
+#define SNB_PF_DATA_RD (1ULL << 4)
+#define SNB_PF_RFO (1ULL << 5)
+#define SNB_PF_IFETCH (1ULL << 6)
+#define SNB_LLC_DATA_RD (1ULL << 7)
+#define SNB_LLC_RFO (1ULL << 8)
+#define SNB_LLC_IFETCH (1ULL << 9)
+#define SNB_BUS_LOCKS (1ULL << 10)
+#define SNB_STRM_ST (1ULL << 11)
+#define SNB_OTHER (1ULL << 15)
+#define SNB_RESP_ANY (1ULL << 16)
+#define SNB_NO_SUPP (1ULL << 17)
+#define SNB_LLC_HITM (1ULL << 18)
+#define SNB_LLC_HITE (1ULL << 19)
+#define SNB_LLC_HITS (1ULL << 20)
+#define SNB_LLC_HITF (1ULL << 21)
+#define SNB_LOCAL (1ULL << 22)
+#define SNB_REMOTE (0xffULL << 23)
+#define SNB_SNP_NONE (1ULL << 31)
+#define SNB_SNP_NOT_NEEDED (1ULL << 32)
+#define SNB_SNP_MISS (1ULL << 33)
+#define SNB_NO_FWD (1ULL << 34)
+#define SNB_SNP_FWD (1ULL << 35)
+#define SNB_HITM (1ULL << 36)
+#define SNB_NON_DRAM (1ULL << 37)
+
+#define SNB_DMND_READ (SNB_DMND_DATA_RD|SNB_LLC_DATA_RD)
+#define SNB_DMND_WRITE (SNB_DMND_RFO|SNB_LLC_RFO)
+#define SNB_DMND_PREFETCH (SNB_PF_DATA_RD|SNB_PF_RFO)
+
+#define SNB_SNP_ANY (SNB_SNP_NONE|SNB_SNP_NOT_NEEDED| \
+ SNB_SNP_MISS|SNB_NO_FWD|SNB_SNP_FWD| \
+ SNB_HITM)
+
+#define SNB_DRAM_ANY (SNB_LOCAL|SNB_REMOTE|SNB_SNP_ANY)
+#define SNB_DRAM_REMOTE (SNB_REMOTE|SNB_SNP_ANY)
+
+#define SNB_L3_ACCESS SNB_RESP_ANY
+#define SNB_L3_MISS (SNB_DRAM_ANY|SNB_NON_DRAM)
+
+static __initconst const u64 snb_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = SNB_DMND_READ|SNB_L3_ACCESS,
+ [ C(RESULT_MISS) ] = SNB_DMND_READ|SNB_L3_MISS,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = SNB_DMND_WRITE|SNB_L3_ACCESS,
+ [ C(RESULT_MISS) ] = SNB_DMND_WRITE|SNB_L3_MISS,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = SNB_DMND_PREFETCH|SNB_L3_ACCESS,
+ [ C(RESULT_MISS) ] = SNB_DMND_PREFETCH|SNB_L3_MISS,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = SNB_DMND_READ|SNB_DRAM_ANY,
+ [ C(RESULT_MISS) ] = SNB_DMND_READ|SNB_DRAM_REMOTE,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = SNB_DMND_WRITE|SNB_DRAM_ANY,
+ [ C(RESULT_MISS) ] = SNB_DMND_WRITE|SNB_DRAM_REMOTE,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = SNB_DMND_PREFETCH|SNB_DRAM_ANY,
+ [ C(RESULT_MISS) ] = SNB_DMND_PREFETCH|SNB_DRAM_REMOTE,
+ },
+ },
+};
+
+static __initconst const u64 snb_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0xf1d0, /* MEM_UOP_RETIRED.LOADS */
+ [ C(RESULT_MISS) ] = 0x0151, /* L1D.REPLACEMENT */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0xf2d0, /* MEM_UOP_RETIRED.STORES */
+ [ C(RESULT_MISS) ] = 0x0851, /* L1D.ALL_M_REPLACEMENT */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x024e, /* HW_PRE_REQ.DL1_MISS */
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0280, /* ICACHE.MISSES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_WRITE) ] = {
+ /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_PREFETCH) ] = {
+ /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_UOP_RETIRED.ALL_LOADS */
+ [ C(RESULT_MISS) ] = 0x0108, /* DTLB_LOAD_MISSES.CAUSES_A_WALK */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_UOP_RETIRED.ALL_STORES */
+ [ C(RESULT_MISS) ] = 0x0149, /* DTLB_STORE_MISSES.MISS_CAUSES_A_WALK */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x1085, /* ITLB_MISSES.STLB_HIT */
+ [ C(RESULT_MISS) ] = 0x0185, /* ITLB_MISSES.CAUSES_A_WALK */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */
+ [ C(RESULT_MISS) ] = 0x00c5, /* BR_MISP_RETIRED.ALL_BRANCHES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ },
+
+};
+
+/*
+ * Notes on the events:
+ * - data reads do not include code reads (comparable to earlier tables)
+ * - data counts include speculative execution (except L1 write, dtlb, bpu)
+ * - remote node access includes remote memory, remote cache, remote mmio.
+ * - prefetches are not included in the counts because they are not
+ * reliably counted.
+ */
+
+#define HSW_DEMAND_DATA_RD BIT_ULL(0)
+#define HSW_DEMAND_RFO BIT_ULL(1)
+#define HSW_ANY_RESPONSE BIT_ULL(16)
+#define HSW_SUPPLIER_NONE BIT_ULL(17)
+#define HSW_L3_MISS_LOCAL_DRAM BIT_ULL(22)
+#define HSW_L3_MISS_REMOTE_HOP0 BIT_ULL(27)
+#define HSW_L3_MISS_REMOTE_HOP1 BIT_ULL(28)
+#define HSW_L3_MISS_REMOTE_HOP2P BIT_ULL(29)
+#define HSW_L3_MISS (HSW_L3_MISS_LOCAL_DRAM| \
+ HSW_L3_MISS_REMOTE_HOP0|HSW_L3_MISS_REMOTE_HOP1| \
+ HSW_L3_MISS_REMOTE_HOP2P)
+#define HSW_SNOOP_NONE BIT_ULL(31)
+#define HSW_SNOOP_NOT_NEEDED BIT_ULL(32)
+#define HSW_SNOOP_MISS BIT_ULL(33)
+#define HSW_SNOOP_HIT_NO_FWD BIT_ULL(34)
+#define HSW_SNOOP_HIT_WITH_FWD BIT_ULL(35)
+#define HSW_SNOOP_HITM BIT_ULL(36)
+#define HSW_SNOOP_NON_DRAM BIT_ULL(37)
+#define HSW_ANY_SNOOP (HSW_SNOOP_NONE| \
+ HSW_SNOOP_NOT_NEEDED|HSW_SNOOP_MISS| \
+ HSW_SNOOP_HIT_NO_FWD|HSW_SNOOP_HIT_WITH_FWD| \
+ HSW_SNOOP_HITM|HSW_SNOOP_NON_DRAM)
+#define HSW_SNOOP_DRAM (HSW_ANY_SNOOP & ~HSW_SNOOP_NON_DRAM)
+#define HSW_DEMAND_READ HSW_DEMAND_DATA_RD
+#define HSW_DEMAND_WRITE HSW_DEMAND_RFO
+#define HSW_L3_MISS_REMOTE (HSW_L3_MISS_REMOTE_HOP0|\
+ HSW_L3_MISS_REMOTE_HOP1|HSW_L3_MISS_REMOTE_HOP2P)
+#define HSW_LLC_ACCESS HSW_ANY_RESPONSE
+
+#define BDW_L3_MISS_LOCAL BIT(26)
+#define BDW_L3_MISS (BDW_L3_MISS_LOCAL| \
+ HSW_L3_MISS_REMOTE_HOP0|HSW_L3_MISS_REMOTE_HOP1| \
+ HSW_L3_MISS_REMOTE_HOP2P)
+
+
+static __initconst const u64 hsw_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */
+ [ C(RESULT_MISS) ] = 0x151, /* L1D.REPLACEMENT */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x280, /* ICACHE.MISSES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */
+ [ C(RESULT_MISS) ] = 0x108, /* DTLB_LOAD_MISSES.MISS_CAUSES_A_WALK */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */
+ [ C(RESULT_MISS) ] = 0x149, /* DTLB_STORE_MISSES.MISS_CAUSES_A_WALK */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x6085, /* ITLB_MISSES.STLB_HIT */
+ [ C(RESULT_MISS) ] = 0x185, /* ITLB_MISSES.MISS_CAUSES_A_WALK */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0xc4, /* BR_INST_RETIRED.ALL_BRANCHES */
+ [ C(RESULT_MISS) ] = 0xc5, /* BR_MISP_RETIRED.ALL_BRANCHES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+};
+
+static __initconst const u64 hsw_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = HSW_DEMAND_READ|
+ HSW_LLC_ACCESS,
+ [ C(RESULT_MISS) ] = HSW_DEMAND_READ|
+ HSW_L3_MISS|HSW_ANY_SNOOP,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = HSW_DEMAND_WRITE|
+ HSW_LLC_ACCESS,
+ [ C(RESULT_MISS) ] = HSW_DEMAND_WRITE|
+ HSW_L3_MISS|HSW_ANY_SNOOP,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = HSW_DEMAND_READ|
+ HSW_L3_MISS_LOCAL_DRAM|
+ HSW_SNOOP_DRAM,
+ [ C(RESULT_MISS) ] = HSW_DEMAND_READ|
+ HSW_L3_MISS_REMOTE|
+ HSW_SNOOP_DRAM,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = HSW_DEMAND_WRITE|
+ HSW_L3_MISS_LOCAL_DRAM|
+ HSW_SNOOP_DRAM,
+ [ C(RESULT_MISS) ] = HSW_DEMAND_WRITE|
+ HSW_L3_MISS_REMOTE|
+ HSW_SNOOP_DRAM,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+};
+
+static __initconst const u64 westmere_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x010b, /* MEM_INST_RETIRED.LOADS */
+ [ C(RESULT_MISS) ] = 0x0151, /* L1D.REPL */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x020b, /* MEM_INST_RETURED.STORES */
+ [ C(RESULT_MISS) ] = 0x0251, /* L1D.M_REPL */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x014e, /* L1D_PREFETCH.REQUESTS */
+ [ C(RESULT_MISS) ] = 0x024e, /* L1D_PREFETCH.MISS */
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0380, /* L1I.READS */
+ [ C(RESULT_MISS) ] = 0x0280, /* L1I.MISSES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ /*
+ * Use RFO, not WRITEBACK, because a write miss would typically occur
+ * on RFO.
+ */
+ [ C(OP_WRITE) ] = {
+ /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_PREFETCH) ] = {
+ /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x010b, /* MEM_INST_RETIRED.LOADS */
+ [ C(RESULT_MISS) ] = 0x0108, /* DTLB_LOAD_MISSES.ANY */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x020b, /* MEM_INST_RETURED.STORES */
+ [ C(RESULT_MISS) ] = 0x010c, /* MEM_STORE_RETIRED.DTLB_MISS */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01c0, /* INST_RETIRED.ANY_P */
+ [ C(RESULT_MISS) ] = 0x0185, /* ITLB_MISSES.ANY */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */
+ [ C(RESULT_MISS) ] = 0x03e8, /* BPU_CLEARS.ANY */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ },
+};
+
+/*
+ * Nehalem/Westmere MSR_OFFCORE_RESPONSE bits;
+ * See IA32 SDM Vol 3B 30.6.1.3
+ */
+
+#define NHM_DMND_DATA_RD (1 << 0)
+#define NHM_DMND_RFO (1 << 1)
+#define NHM_DMND_IFETCH (1 << 2)
+#define NHM_DMND_WB (1 << 3)
+#define NHM_PF_DATA_RD (1 << 4)
+#define NHM_PF_DATA_RFO (1 << 5)
+#define NHM_PF_IFETCH (1 << 6)
+#define NHM_OFFCORE_OTHER (1 << 7)
+#define NHM_UNCORE_HIT (1 << 8)
+#define NHM_OTHER_CORE_HIT_SNP (1 << 9)
+#define NHM_OTHER_CORE_HITM (1 << 10)
+ /* reserved */
+#define NHM_REMOTE_CACHE_FWD (1 << 12)
+#define NHM_REMOTE_DRAM (1 << 13)
+#define NHM_LOCAL_DRAM (1 << 14)
+#define NHM_NON_DRAM (1 << 15)
+
+#define NHM_LOCAL (NHM_LOCAL_DRAM|NHM_REMOTE_CACHE_FWD)
+#define NHM_REMOTE (NHM_REMOTE_DRAM)
+
+#define NHM_DMND_READ (NHM_DMND_DATA_RD)
+#define NHM_DMND_WRITE (NHM_DMND_RFO|NHM_DMND_WB)
+#define NHM_DMND_PREFETCH (NHM_PF_DATA_RD|NHM_PF_DATA_RFO)
+
+#define NHM_L3_HIT (NHM_UNCORE_HIT|NHM_OTHER_CORE_HIT_SNP|NHM_OTHER_CORE_HITM)
+#define NHM_L3_MISS (NHM_NON_DRAM|NHM_LOCAL_DRAM|NHM_REMOTE_DRAM|NHM_REMOTE_CACHE_FWD)
+#define NHM_L3_ACCESS (NHM_L3_HIT|NHM_L3_MISS)
+
+static __initconst const u64 nehalem_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = NHM_DMND_READ|NHM_L3_ACCESS,
+ [ C(RESULT_MISS) ] = NHM_DMND_READ|NHM_L3_MISS,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = NHM_DMND_WRITE|NHM_L3_ACCESS,
+ [ C(RESULT_MISS) ] = NHM_DMND_WRITE|NHM_L3_MISS,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = NHM_DMND_PREFETCH|NHM_L3_ACCESS,
+ [ C(RESULT_MISS) ] = NHM_DMND_PREFETCH|NHM_L3_MISS,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = NHM_DMND_READ|NHM_LOCAL|NHM_REMOTE,
+ [ C(RESULT_MISS) ] = NHM_DMND_READ|NHM_REMOTE,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = NHM_DMND_WRITE|NHM_LOCAL|NHM_REMOTE,
+ [ C(RESULT_MISS) ] = NHM_DMND_WRITE|NHM_REMOTE,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = NHM_DMND_PREFETCH|NHM_LOCAL|NHM_REMOTE,
+ [ C(RESULT_MISS) ] = NHM_DMND_PREFETCH|NHM_REMOTE,
+ },
+ },
+};
+
+static __initconst const u64 nehalem_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x010b, /* MEM_INST_RETIRED.LOADS */
+ [ C(RESULT_MISS) ] = 0x0151, /* L1D.REPL */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x020b, /* MEM_INST_RETURED.STORES */
+ [ C(RESULT_MISS) ] = 0x0251, /* L1D.M_REPL */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x014e, /* L1D_PREFETCH.REQUESTS */
+ [ C(RESULT_MISS) ] = 0x024e, /* L1D_PREFETCH.MISS */
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0380, /* L1I.READS */
+ [ C(RESULT_MISS) ] = 0x0280, /* L1I.MISSES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ /*
+ * Use RFO, not WRITEBACK, because a write miss would typically occur
+ * on RFO.
+ */
+ [ C(OP_WRITE) ] = {
+ /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_PREFETCH) ] = {
+ /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0f40, /* L1D_CACHE_LD.MESI (alias) */
+ [ C(RESULT_MISS) ] = 0x0108, /* DTLB_LOAD_MISSES.ANY */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0f41, /* L1D_CACHE_ST.MESI (alias) */
+ [ C(RESULT_MISS) ] = 0x010c, /* MEM_STORE_RETIRED.DTLB_MISS */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01c0, /* INST_RETIRED.ANY_P */
+ [ C(RESULT_MISS) ] = 0x20c8, /* ITLB_MISS_RETIRED */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */
+ [ C(RESULT_MISS) ] = 0x03e8, /* BPU_CLEARS.ANY */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ },
+};
+
+static __initconst const u64 core2_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0f40, /* L1D_CACHE_LD.MESI */
+ [ C(RESULT_MISS) ] = 0x0140, /* L1D_CACHE_LD.I_STATE */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0f41, /* L1D_CACHE_ST.MESI */
+ [ C(RESULT_MISS) ] = 0x0141, /* L1D_CACHE_ST.I_STATE */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x104e, /* L1D_PREFETCH.REQUESTS */
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0080, /* L1I.READS */
+ [ C(RESULT_MISS) ] = 0x0081, /* L1I.MISSES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x4f29, /* L2_LD.MESI */
+ [ C(RESULT_MISS) ] = 0x4129, /* L2_LD.ISTATE */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x4f2A, /* L2_ST.MESI */
+ [ C(RESULT_MISS) ] = 0x412A, /* L2_ST.ISTATE */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0f40, /* L1D_CACHE_LD.MESI (alias) */
+ [ C(RESULT_MISS) ] = 0x0208, /* DTLB_MISSES.MISS_LD */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0f41, /* L1D_CACHE_ST.MESI (alias) */
+ [ C(RESULT_MISS) ] = 0x0808, /* DTLB_MISSES.MISS_ST */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c0, /* INST_RETIRED.ANY_P */
+ [ C(RESULT_MISS) ] = 0x1282, /* ITLBMISSES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ANY */
+ [ C(RESULT_MISS) ] = 0x00c5, /* BP_INST_RETIRED.MISPRED */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+};
+
+static __initconst const u64 atom_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x2140, /* L1D_CACHE.LD */
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x2240, /* L1D_CACHE.ST */
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0380, /* L1I.READS */
+ [ C(RESULT_MISS) ] = 0x0280, /* L1I.MISSES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x4f29, /* L2_LD.MESI */
+ [ C(RESULT_MISS) ] = 0x4129, /* L2_LD.ISTATE */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x4f2A, /* L2_ST.MESI */
+ [ C(RESULT_MISS) ] = 0x412A, /* L2_ST.ISTATE */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x2140, /* L1D_CACHE_LD.MESI (alias) */
+ [ C(RESULT_MISS) ] = 0x0508, /* DTLB_MISSES.MISS_LD */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x2240, /* L1D_CACHE_ST.MESI (alias) */
+ [ C(RESULT_MISS) ] = 0x0608, /* DTLB_MISSES.MISS_ST */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c0, /* INST_RETIRED.ANY_P */
+ [ C(RESULT_MISS) ] = 0x0282, /* ITLB.MISSES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ANY */
+ [ C(RESULT_MISS) ] = 0x00c5, /* BP_INST_RETIRED.MISPRED */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+};
+
+EVENT_ATTR_STR(topdown-total-slots, td_total_slots_slm, "event=0x3c");
+EVENT_ATTR_STR(topdown-total-slots.scale, td_total_slots_scale_slm, "2");
+/* no_alloc_cycles.not_delivered */
+EVENT_ATTR_STR(topdown-fetch-bubbles, td_fetch_bubbles_slm,
+ "event=0xca,umask=0x50");
+EVENT_ATTR_STR(topdown-fetch-bubbles.scale, td_fetch_bubbles_scale_slm, "2");
+/* uops_retired.all */
+EVENT_ATTR_STR(topdown-slots-issued, td_slots_issued_slm,
+ "event=0xc2,umask=0x10");
+/* uops_retired.all */
+EVENT_ATTR_STR(topdown-slots-retired, td_slots_retired_slm,
+ "event=0xc2,umask=0x10");
+
+static struct attribute *slm_events_attrs[] = {
+ EVENT_PTR(td_total_slots_slm),
+ EVENT_PTR(td_total_slots_scale_slm),
+ EVENT_PTR(td_fetch_bubbles_slm),
+ EVENT_PTR(td_fetch_bubbles_scale_slm),
+ EVENT_PTR(td_slots_issued_slm),
+ EVENT_PTR(td_slots_retired_slm),
+ NULL
+};
+
+static struct extra_reg intel_slm_extra_regs[] __read_mostly =
+{
+ /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x768005ffffull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x368005ffffull, RSP_1),
+ EVENT_EXTRA_END
+};
+
+#define SLM_DMND_READ SNB_DMND_DATA_RD
+#define SLM_DMND_WRITE SNB_DMND_RFO
+#define SLM_DMND_PREFETCH (SNB_PF_DATA_RD|SNB_PF_RFO)
+
+#define SLM_SNP_ANY (SNB_SNP_NONE|SNB_SNP_MISS|SNB_NO_FWD|SNB_HITM)
+#define SLM_LLC_ACCESS SNB_RESP_ANY
+#define SLM_LLC_MISS (SLM_SNP_ANY|SNB_NON_DRAM)
+
+static __initconst const u64 slm_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = SLM_DMND_READ|SLM_LLC_ACCESS,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = SLM_DMND_WRITE|SLM_LLC_ACCESS,
+ [ C(RESULT_MISS) ] = SLM_DMND_WRITE|SLM_LLC_MISS,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = SLM_DMND_PREFETCH|SLM_LLC_ACCESS,
+ [ C(RESULT_MISS) ] = SLM_DMND_PREFETCH|SLM_LLC_MISS,
+ },
+ },
+};
+
+static __initconst const u64 slm_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0x0104, /* LD_DCU_MISS */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0380, /* ICACHE.ACCESSES */
+ [ C(RESULT_MISS) ] = 0x0280, /* ICACGE.MISSES */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_WRITE) ] = {
+ /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ [ C(OP_PREFETCH) ] = {
+ /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */
+ [ C(RESULT_ACCESS) ] = 0x01b7,
+ /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */
+ [ C(RESULT_MISS) ] = 0x01b7,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0x0804, /* LD_DTLB_MISS */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c0, /* INST_RETIRED.ANY_P */
+ [ C(RESULT_MISS) ] = 0x40205, /* PAGE_WALKS.I_SIDE_WALKS */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ANY */
+ [ C(RESULT_MISS) ] = 0x00c5, /* BP_INST_RETIRED.MISPRED */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+};
+
+EVENT_ATTR_STR(topdown-total-slots, td_total_slots_glm, "event=0x3c");
+EVENT_ATTR_STR(topdown-total-slots.scale, td_total_slots_scale_glm, "3");
+/* UOPS_NOT_DELIVERED.ANY */
+EVENT_ATTR_STR(topdown-fetch-bubbles, td_fetch_bubbles_glm, "event=0x9c");
+/* ISSUE_SLOTS_NOT_CONSUMED.RECOVERY */
+EVENT_ATTR_STR(topdown-recovery-bubbles, td_recovery_bubbles_glm, "event=0xca,umask=0x02");
+/* UOPS_RETIRED.ANY */
+EVENT_ATTR_STR(topdown-slots-retired, td_slots_retired_glm, "event=0xc2");
+/* UOPS_ISSUED.ANY */
+EVENT_ATTR_STR(topdown-slots-issued, td_slots_issued_glm, "event=0x0e");
+
+static struct attribute *glm_events_attrs[] = {
+ EVENT_PTR(td_total_slots_glm),
+ EVENT_PTR(td_total_slots_scale_glm),
+ EVENT_PTR(td_fetch_bubbles_glm),
+ EVENT_PTR(td_recovery_bubbles_glm),
+ EVENT_PTR(td_slots_issued_glm),
+ EVENT_PTR(td_slots_retired_glm),
+ NULL
+};
+
+static struct extra_reg intel_glm_extra_regs[] __read_mostly = {
+ /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x760005ffbfull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x360005ffbfull, RSP_1),
+ EVENT_EXTRA_END
+};
+
+#define GLM_DEMAND_DATA_RD BIT_ULL(0)
+#define GLM_DEMAND_RFO BIT_ULL(1)
+#define GLM_ANY_RESPONSE BIT_ULL(16)
+#define GLM_SNP_NONE_OR_MISS BIT_ULL(33)
+#define GLM_DEMAND_READ GLM_DEMAND_DATA_RD
+#define GLM_DEMAND_WRITE GLM_DEMAND_RFO
+#define GLM_DEMAND_PREFETCH (SNB_PF_DATA_RD|SNB_PF_RFO)
+#define GLM_LLC_ACCESS GLM_ANY_RESPONSE
+#define GLM_SNP_ANY (GLM_SNP_NONE_OR_MISS|SNB_NO_FWD|SNB_HITM)
+#define GLM_LLC_MISS (GLM_SNP_ANY|SNB_NON_DRAM)
+
+static __initconst const u64 glm_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+ [C(L1D)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */
+ [C(RESULT_MISS)] = 0x0,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */
+ [C(RESULT_MISS)] = 0x0,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(L1I)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0380, /* ICACHE.ACCESSES */
+ [C(RESULT_MISS)] = 0x0280, /* ICACHE.MISSES */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ },
+ [C(DTLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */
+ [C(RESULT_MISS)] = 0x0,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */
+ [C(RESULT_MISS)] = 0x0,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(ITLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x00c0, /* INST_RETIRED.ANY_P */
+ [C(RESULT_MISS)] = 0x0481, /* ITLB.MISS */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ },
+ [C(BPU)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */
+ [C(RESULT_MISS)] = 0x00c5, /* BR_MISP_RETIRED.ALL_BRANCHES */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ },
+};
+
+static __initconst const u64 glm_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+ [C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = GLM_DEMAND_READ|
+ GLM_LLC_ACCESS,
+ [C(RESULT_MISS)] = GLM_DEMAND_READ|
+ GLM_LLC_MISS,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = GLM_DEMAND_WRITE|
+ GLM_LLC_ACCESS,
+ [C(RESULT_MISS)] = GLM_DEMAND_WRITE|
+ GLM_LLC_MISS,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = GLM_DEMAND_PREFETCH|
+ GLM_LLC_ACCESS,
+ [C(RESULT_MISS)] = GLM_DEMAND_PREFETCH|
+ GLM_LLC_MISS,
+ },
+ },
+};
+
+static __initconst const u64 glp_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+ [C(L1D)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */
+ [C(RESULT_MISS)] = 0x0,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */
+ [C(RESULT_MISS)] = 0x0,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(L1I)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0380, /* ICACHE.ACCESSES */
+ [C(RESULT_MISS)] = 0x0280, /* ICACHE.MISSES */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(DTLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */
+ [C(RESULT_MISS)] = 0xe08, /* DTLB_LOAD_MISSES.WALK_COMPLETED */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */
+ [C(RESULT_MISS)] = 0xe49, /* DTLB_STORE_MISSES.WALK_COMPLETED */
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+ [C(ITLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x00c0, /* INST_RETIRED.ANY_P */
+ [C(RESULT_MISS)] = 0x0481, /* ITLB.MISS */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ },
+ [C(BPU)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */
+ [C(RESULT_MISS)] = 0x00c5, /* BR_MISP_RETIRED.ALL_BRANCHES */
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ },
+};
+
+static __initconst const u64 glp_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+ [C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = GLM_DEMAND_READ|
+ GLM_LLC_ACCESS,
+ [C(RESULT_MISS)] = GLM_DEMAND_READ|
+ GLM_LLC_MISS,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = GLM_DEMAND_WRITE|
+ GLM_LLC_ACCESS,
+ [C(RESULT_MISS)] = GLM_DEMAND_WRITE|
+ GLM_LLC_MISS,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+};
+
+#define TNT_LOCAL_DRAM BIT_ULL(26)
+#define TNT_DEMAND_READ GLM_DEMAND_DATA_RD
+#define TNT_DEMAND_WRITE GLM_DEMAND_RFO
+#define TNT_LLC_ACCESS GLM_ANY_RESPONSE
+#define TNT_SNP_ANY (SNB_SNP_NOT_NEEDED|SNB_SNP_MISS| \
+ SNB_NO_FWD|SNB_SNP_FWD|SNB_HITM)
+#define TNT_LLC_MISS (TNT_SNP_ANY|SNB_NON_DRAM|TNT_LOCAL_DRAM)
+
+static __initconst const u64 tnt_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+ [C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = TNT_DEMAND_READ|
+ TNT_LLC_ACCESS,
+ [C(RESULT_MISS)] = TNT_DEMAND_READ|
+ TNT_LLC_MISS,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = TNT_DEMAND_WRITE|
+ TNT_LLC_ACCESS,
+ [C(RESULT_MISS)] = TNT_DEMAND_WRITE|
+ TNT_LLC_MISS,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ },
+};
+
+EVENT_ATTR_STR(topdown-fe-bound, td_fe_bound_tnt, "event=0x71,umask=0x0");
+EVENT_ATTR_STR(topdown-retiring, td_retiring_tnt, "event=0xc2,umask=0x0");
+EVENT_ATTR_STR(topdown-bad-spec, td_bad_spec_tnt, "event=0x73,umask=0x6");
+EVENT_ATTR_STR(topdown-be-bound, td_be_bound_tnt, "event=0x74,umask=0x0");
+
+static struct attribute *tnt_events_attrs[] = {
+ EVENT_PTR(td_fe_bound_tnt),
+ EVENT_PTR(td_retiring_tnt),
+ EVENT_PTR(td_bad_spec_tnt),
+ EVENT_PTR(td_be_bound_tnt),
+ NULL,
+};
+
+static struct extra_reg intel_tnt_extra_regs[] __read_mostly = {
+ /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x800ff0ffffff9fffull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0xff0ffffff9fffull, RSP_1),
+ EVENT_EXTRA_END
+};
+
+EVENT_ATTR_STR(mem-loads, mem_ld_grt, "event=0xd0,umask=0x5,ldlat=3");
+EVENT_ATTR_STR(mem-stores, mem_st_grt, "event=0xd0,umask=0x6");
+
+static struct attribute *grt_mem_attrs[] = {
+ EVENT_PTR(mem_ld_grt),
+ EVENT_PTR(mem_st_grt),
+ NULL
+};
+
+static struct extra_reg intel_grt_extra_regs[] __read_mostly = {
+ /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3fffffffffull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x3fffffffffull, RSP_1),
+ INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x5d0),
+ EVENT_EXTRA_END
+};
+
+static struct extra_reg intel_cmt_extra_regs[] __read_mostly = {
+ /* must define OFFCORE_RSP_X first, see intel_fixup_er() */
+ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x800ff3ffffffffffull, RSP_0),
+ INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0xff3ffffffffffull, RSP_1),
+ INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x5d0),
+ INTEL_UEVENT_EXTRA_REG(0x0127, MSR_SNOOP_RSP_0, 0xffffffffffffffffull, SNOOP_0),
+ INTEL_UEVENT_EXTRA_REG(0x0227, MSR_SNOOP_RSP_1, 0xffffffffffffffffull, SNOOP_1),
+ EVENT_EXTRA_END
+};
+
+#define KNL_OT_L2_HITE BIT_ULL(19) /* Other Tile L2 Hit */
+#define KNL_OT_L2_HITF BIT_ULL(20) /* Other Tile L2 Hit */
+#define KNL_MCDRAM_LOCAL BIT_ULL(21)
+#define KNL_MCDRAM_FAR BIT_ULL(22)
+#define KNL_DDR_LOCAL BIT_ULL(23)
+#define KNL_DDR_FAR BIT_ULL(24)
+#define KNL_DRAM_ANY (KNL_MCDRAM_LOCAL | KNL_MCDRAM_FAR | \
+ KNL_DDR_LOCAL | KNL_DDR_FAR)
+#define KNL_L2_READ SLM_DMND_READ
+#define KNL_L2_WRITE SLM_DMND_WRITE
+#define KNL_L2_PREFETCH SLM_DMND_PREFETCH
+#define KNL_L2_ACCESS SLM_LLC_ACCESS
+#define KNL_L2_MISS (KNL_OT_L2_HITE | KNL_OT_L2_HITF | \
+ KNL_DRAM_ANY | SNB_SNP_ANY | \
+ SNB_NON_DRAM)
+
+static __initconst const u64 knl_hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+ [C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = KNL_L2_READ | KNL_L2_ACCESS,
+ [C(RESULT_MISS)] = 0,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = KNL_L2_WRITE | KNL_L2_ACCESS,
+ [C(RESULT_MISS)] = KNL_L2_WRITE | KNL_L2_MISS,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = KNL_L2_PREFETCH | KNL_L2_ACCESS,
+ [C(RESULT_MISS)] = KNL_L2_PREFETCH | KNL_L2_MISS,
+ },
+ },
+};
+
+/*
+ * Used from PMIs where the LBRs are already disabled.
+ *
+ * This function could be called consecutively. It is required to remain in
+ * disabled state if called consecutively.
+ *
+ * During consecutive calls, the same disable value will be written to related
+ * registers, so the PMU state remains unchanged.
+ *
+ * intel_bts events don't coexist with intel PMU's BTS events because of
+ * x86_add_exclusive(x86_lbr_exclusive_lbr); there's no need to keep them
+ * disabled around intel PMU's event batching etc, only inside the PMI handler.
+ *
+ * Avoid PEBS_ENABLE MSR access in PMIs.
+ * The GLOBAL_CTRL has been disabled. All the counters do not count anymore.
+ * It doesn't matter if the PEBS is enabled or not.
+ * Usually, the PEBS status are not changed in PMIs. It's unnecessary to
+ * access PEBS_ENABLE MSR in disable_all()/enable_all().
+ * However, there are some cases which may change PEBS status, e.g. PMI
+ * throttle. The PEBS_ENABLE should be updated where the status changes.
+ */
+static __always_inline void __intel_pmu_disable_all(bool bts)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0);
+
+ if (bts && test_bit(INTEL_PMC_IDX_FIXED_BTS, cpuc->active_mask))
+ intel_pmu_disable_bts();
+}
+
+static __always_inline void intel_pmu_disable_all(void)
+{
+ __intel_pmu_disable_all(true);
+ intel_pmu_pebs_disable_all();
+ intel_pmu_lbr_disable_all();
+}
+
+static void __intel_pmu_enable_all(int added, bool pmi)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ u64 intel_ctrl = hybrid(cpuc->pmu, intel_ctrl);
+
+ intel_pmu_lbr_enable_all(pmi);
+
+ if (cpuc->fixed_ctrl_val != cpuc->active_fixed_ctrl_val) {
+ wrmsrl(MSR_ARCH_PERFMON_FIXED_CTR_CTRL, cpuc->fixed_ctrl_val);
+ cpuc->active_fixed_ctrl_val = cpuc->fixed_ctrl_val;
+ }
+
+ wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL,
+ intel_ctrl & ~cpuc->intel_ctrl_guest_mask);
+
+ if (test_bit(INTEL_PMC_IDX_FIXED_BTS, cpuc->active_mask)) {
+ struct perf_event *event =
+ cpuc->events[INTEL_PMC_IDX_FIXED_BTS];
+
+ if (WARN_ON_ONCE(!event))
+ return;
+
+ intel_pmu_enable_bts(event->hw.config);
+ }
+}
+
+static void intel_pmu_enable_all(int added)
+{
+ intel_pmu_pebs_enable_all();
+ __intel_pmu_enable_all(added, false);
+}
+
+static noinline int
+__intel_pmu_snapshot_branch_stack(struct perf_branch_entry *entries,
+ unsigned int cnt, unsigned long flags)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ intel_pmu_lbr_read();
+ cnt = min_t(unsigned int, cnt, x86_pmu.lbr_nr);
+
+ memcpy(entries, cpuc->lbr_entries, sizeof(struct perf_branch_entry) * cnt);
+ intel_pmu_enable_all(0);
+ local_irq_restore(flags);
+ return cnt;
+}
+
+static int
+intel_pmu_snapshot_branch_stack(struct perf_branch_entry *entries, unsigned int cnt)
+{
+ unsigned long flags;
+
+ /* must not have branches... */
+ local_irq_save(flags);
+ __intel_pmu_disable_all(false); /* we don't care about BTS */
+ __intel_pmu_lbr_disable();
+ /* ... until here */
+ return __intel_pmu_snapshot_branch_stack(entries, cnt, flags);
+}
+
+static int
+intel_pmu_snapshot_arch_branch_stack(struct perf_branch_entry *entries, unsigned int cnt)
+{
+ unsigned long flags;
+
+ /* must not have branches... */
+ local_irq_save(flags);
+ __intel_pmu_disable_all(false); /* we don't care about BTS */
+ __intel_pmu_arch_lbr_disable();
+ /* ... until here */
+ return __intel_pmu_snapshot_branch_stack(entries, cnt, flags);
+}
+
+/*
+ * Workaround for:
+ * Intel Errata AAK100 (model 26)
+ * Intel Errata AAP53 (model 30)
+ * Intel Errata BD53 (model 44)
+ *
+ * The official story:
+ * These chips need to be 'reset' when adding counters by programming the
+ * magic three (non-counting) events 0x4300B5, 0x4300D2, and 0x4300B1 either
+ * in sequence on the same PMC or on different PMCs.
+ *
+ * In practice it appears some of these events do in fact count, and
+ * we need to program all 4 events.
+ */
+static void intel_pmu_nhm_workaround(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ static const unsigned long nhm_magic[4] = {
+ 0x4300B5,
+ 0x4300D2,
+ 0x4300B1,
+ 0x4300B1
+ };
+ struct perf_event *event;
+ int i;
+
+ /*
+ * The Errata requires below steps:
+ * 1) Clear MSR_IA32_PEBS_ENABLE and MSR_CORE_PERF_GLOBAL_CTRL;
+ * 2) Configure 4 PERFEVTSELx with the magic events and clear
+ * the corresponding PMCx;
+ * 3) set bit0~bit3 of MSR_CORE_PERF_GLOBAL_CTRL;
+ * 4) Clear MSR_CORE_PERF_GLOBAL_CTRL;
+ * 5) Clear 4 pairs of ERFEVTSELx and PMCx;
+ */
+
+ /*
+ * The real steps we choose are a little different from above.
+ * A) To reduce MSR operations, we don't run step 1) as they
+ * are already cleared before this function is called;
+ * B) Call x86_perf_event_update to save PMCx before configuring
+ * PERFEVTSELx with magic number;
+ * C) With step 5), we do clear only when the PERFEVTSELx is
+ * not used currently.
+ * D) Call x86_perf_event_set_period to restore PMCx;
+ */
+
+ /* We always operate 4 pairs of PERF Counters */
+ for (i = 0; i < 4; i++) {
+ event = cpuc->events[i];
+ if (event)
+ static_call(x86_pmu_update)(event);
+ }
+
+ for (i = 0; i < 4; i++) {
+ wrmsrl(MSR_ARCH_PERFMON_EVENTSEL0 + i, nhm_magic[i]);
+ wrmsrl(MSR_ARCH_PERFMON_PERFCTR0 + i, 0x0);
+ }
+
+ wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0xf);
+ wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0x0);
+
+ for (i = 0; i < 4; i++) {
+ event = cpuc->events[i];
+
+ if (event) {
+ static_call(x86_pmu_set_period)(event);
+ __x86_pmu_enable_event(&event->hw,
+ ARCH_PERFMON_EVENTSEL_ENABLE);
+ } else
+ wrmsrl(MSR_ARCH_PERFMON_EVENTSEL0 + i, 0x0);
+ }
+}
+
+static void intel_pmu_nhm_enable_all(int added)
+{
+ if (added)
+ intel_pmu_nhm_workaround();
+ intel_pmu_enable_all(added);
+}
+
+static void intel_set_tfa(struct cpu_hw_events *cpuc, bool on)
+{
+ u64 val = on ? MSR_TFA_RTM_FORCE_ABORT : 0;
+
+ if (cpuc->tfa_shadow != val) {
+ cpuc->tfa_shadow = val;
+ wrmsrl(MSR_TSX_FORCE_ABORT, val);
+ }
+}
+
+static void intel_tfa_commit_scheduling(struct cpu_hw_events *cpuc, int idx, int cntr)
+{
+ /*
+ * We're going to use PMC3, make sure TFA is set before we touch it.
+ */
+ if (cntr == 3)
+ intel_set_tfa(cpuc, true);
+}
+
+static void intel_tfa_pmu_enable_all(int added)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /*
+ * If we find PMC3 is no longer used when we enable the PMU, we can
+ * clear TFA.
+ */
+ if (!test_bit(3, cpuc->active_mask))
+ intel_set_tfa(cpuc, false);
+
+ intel_pmu_enable_all(added);
+}
+
+static inline u64 intel_pmu_get_status(void)
+{
+ u64 status;
+
+ rdmsrl(MSR_CORE_PERF_GLOBAL_STATUS, status);
+
+ return status;
+}
+
+static inline void intel_pmu_ack_status(u64 ack)
+{
+ wrmsrl(MSR_CORE_PERF_GLOBAL_OVF_CTRL, ack);
+}
+
+static inline bool event_is_checkpointed(struct perf_event *event)
+{
+ return unlikely(event->hw.config & HSW_IN_TX_CHECKPOINTED) != 0;
+}
+
+static inline void intel_set_masks(struct perf_event *event, int idx)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (event->attr.exclude_host)
+ __set_bit(idx, (unsigned long *)&cpuc->intel_ctrl_guest_mask);
+ if (event->attr.exclude_guest)
+ __set_bit(idx, (unsigned long *)&cpuc->intel_ctrl_host_mask);
+ if (event_is_checkpointed(event))
+ __set_bit(idx, (unsigned long *)&cpuc->intel_cp_status);
+}
+
+static inline void intel_clear_masks(struct perf_event *event, int idx)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ __clear_bit(idx, (unsigned long *)&cpuc->intel_ctrl_guest_mask);
+ __clear_bit(idx, (unsigned long *)&cpuc->intel_ctrl_host_mask);
+ __clear_bit(idx, (unsigned long *)&cpuc->intel_cp_status);
+}
+
+static void intel_pmu_disable_fixed(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event *hwc = &event->hw;
+ int idx = hwc->idx;
+ u64 mask;
+
+ if (is_topdown_idx(idx)) {
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /*
+ * When there are other active TopDown events,
+ * don't disable the fixed counter 3.
+ */
+ if (*(u64 *)cpuc->active_mask & INTEL_PMC_OTHER_TOPDOWN_BITS(idx))
+ return;
+ idx = INTEL_PMC_IDX_FIXED_SLOTS;
+ }
+
+ intel_clear_masks(event, idx);
+
+ mask = 0xfULL << ((idx - INTEL_PMC_IDX_FIXED) * 4);
+ cpuc->fixed_ctrl_val &= ~mask;
+}
+
+static void intel_pmu_disable_event(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ int idx = hwc->idx;
+
+ switch (idx) {
+ case 0 ... INTEL_PMC_IDX_FIXED - 1:
+ intel_clear_masks(event, idx);
+ x86_pmu_disable_event(event);
+ break;
+ case INTEL_PMC_IDX_FIXED ... INTEL_PMC_IDX_FIXED_BTS - 1:
+ case INTEL_PMC_IDX_METRIC_BASE ... INTEL_PMC_IDX_METRIC_END:
+ intel_pmu_disable_fixed(event);
+ break;
+ case INTEL_PMC_IDX_FIXED_BTS:
+ intel_pmu_disable_bts();
+ intel_pmu_drain_bts_buffer();
+ return;
+ case INTEL_PMC_IDX_FIXED_VLBR:
+ intel_clear_masks(event, idx);
+ break;
+ default:
+ intel_clear_masks(event, idx);
+ pr_warn("Failed to disable the event with invalid index %d\n",
+ idx);
+ return;
+ }
+
+ /*
+ * Needs to be called after x86_pmu_disable_event,
+ * so we don't trigger the event without PEBS bit set.
+ */
+ if (unlikely(event->attr.precise_ip))
+ intel_pmu_pebs_disable(event);
+}
+
+static void intel_pmu_assign_event(struct perf_event *event, int idx)
+{
+ if (is_pebs_pt(event))
+ perf_report_aux_output_id(event, idx);
+}
+
+static void intel_pmu_del_event(struct perf_event *event)
+{
+ if (needs_branch_stack(event))
+ intel_pmu_lbr_del(event);
+ if (event->attr.precise_ip)
+ intel_pmu_pebs_del(event);
+}
+
+static int icl_set_topdown_event_period(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ s64 left = local64_read(&hwc->period_left);
+
+ /*
+ * The values in PERF_METRICS MSR are derived from fixed counter 3.
+ * Software should start both registers, PERF_METRICS and fixed
+ * counter 3, from zero.
+ * Clear PERF_METRICS and Fixed counter 3 in initialization.
+ * After that, both MSRs will be cleared for each read.
+ * Don't need to clear them again.
+ */
+ if (left == x86_pmu.max_period) {
+ wrmsrl(MSR_CORE_PERF_FIXED_CTR3, 0);
+ wrmsrl(MSR_PERF_METRICS, 0);
+ hwc->saved_slots = 0;
+ hwc->saved_metric = 0;
+ }
+
+ if ((hwc->saved_slots) && is_slots_event(event)) {
+ wrmsrl(MSR_CORE_PERF_FIXED_CTR3, hwc->saved_slots);
+ wrmsrl(MSR_PERF_METRICS, hwc->saved_metric);
+ }
+
+ perf_event_update_userpage(event);
+
+ return 0;
+}
+
+static int adl_set_topdown_event_period(struct perf_event *event)
+{
+ struct x86_hybrid_pmu *pmu = hybrid_pmu(event->pmu);
+
+ if (pmu->cpu_type != hybrid_big)
+ return 0;
+
+ return icl_set_topdown_event_period(event);
+}
+
+DEFINE_STATIC_CALL(intel_pmu_set_topdown_event_period, x86_perf_event_set_period);
+
+static inline u64 icl_get_metrics_event_value(u64 metric, u64 slots, int idx)
+{
+ u32 val;
+
+ /*
+ * The metric is reported as an 8bit integer fraction
+ * summing up to 0xff.
+ * slots-in-metric = (Metric / 0xff) * slots
+ */
+ val = (metric >> ((idx - INTEL_PMC_IDX_METRIC_BASE) * 8)) & 0xff;
+ return mul_u64_u32_div(slots, val, 0xff);
+}
+
+static u64 icl_get_topdown_value(struct perf_event *event,
+ u64 slots, u64 metrics)
+{
+ int idx = event->hw.idx;
+ u64 delta;
+
+ if (is_metric_idx(idx))
+ delta = icl_get_metrics_event_value(metrics, slots, idx);
+ else
+ delta = slots;
+
+ return delta;
+}
+
+static void __icl_update_topdown_event(struct perf_event *event,
+ u64 slots, u64 metrics,
+ u64 last_slots, u64 last_metrics)
+{
+ u64 delta, last = 0;
+
+ delta = icl_get_topdown_value(event, slots, metrics);
+ if (last_slots)
+ last = icl_get_topdown_value(event, last_slots, last_metrics);
+
+ /*
+ * The 8bit integer fraction of metric may be not accurate,
+ * especially when the changes is very small.
+ * For example, if only a few bad_spec happens, the fraction
+ * may be reduced from 1 to 0. If so, the bad_spec event value
+ * will be 0 which is definitely less than the last value.
+ * Avoid update event->count for this case.
+ */
+ if (delta > last) {
+ delta -= last;
+ local64_add(delta, &event->count);
+ }
+}
+
+static void update_saved_topdown_regs(struct perf_event *event, u64 slots,
+ u64 metrics, int metric_end)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct perf_event *other;
+ int idx;
+
+ event->hw.saved_slots = slots;
+ event->hw.saved_metric = metrics;
+
+ for_each_set_bit(idx, cpuc->active_mask, metric_end + 1) {
+ if (!is_topdown_idx(idx))
+ continue;
+ other = cpuc->events[idx];
+ other->hw.saved_slots = slots;
+ other->hw.saved_metric = metrics;
+ }
+}
+
+/*
+ * Update all active Topdown events.
+ *
+ * The PERF_METRICS and Fixed counter 3 are read separately. The values may be
+ * modify by a NMI. PMU has to be disabled before calling this function.
+ */
+
+static u64 intel_update_topdown_event(struct perf_event *event, int metric_end)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct perf_event *other;
+ u64 slots, metrics;
+ bool reset = true;
+ int idx;
+
+ /* read Fixed counter 3 */
+ rdpmcl((3 | INTEL_PMC_FIXED_RDPMC_BASE), slots);
+ if (!slots)
+ return 0;
+
+ /* read PERF_METRICS */
+ rdpmcl(INTEL_PMC_FIXED_RDPMC_METRICS, metrics);
+
+ for_each_set_bit(idx, cpuc->active_mask, metric_end + 1) {
+ if (!is_topdown_idx(idx))
+ continue;
+ other = cpuc->events[idx];
+ __icl_update_topdown_event(other, slots, metrics,
+ event ? event->hw.saved_slots : 0,
+ event ? event->hw.saved_metric : 0);
+ }
+
+ /*
+ * Check and update this event, which may have been cleared
+ * in active_mask e.g. x86_pmu_stop()
+ */
+ if (event && !test_bit(event->hw.idx, cpuc->active_mask)) {
+ __icl_update_topdown_event(event, slots, metrics,
+ event->hw.saved_slots,
+ event->hw.saved_metric);
+
+ /*
+ * In x86_pmu_stop(), the event is cleared in active_mask first,
+ * then drain the delta, which indicates context switch for
+ * counting.
+ * Save metric and slots for context switch.
+ * Don't need to reset the PERF_METRICS and Fixed counter 3.
+ * Because the values will be restored in next schedule in.
+ */
+ update_saved_topdown_regs(event, slots, metrics, metric_end);
+ reset = false;
+ }
+
+ if (reset) {
+ /* The fixed counter 3 has to be written before the PERF_METRICS. */
+ wrmsrl(MSR_CORE_PERF_FIXED_CTR3, 0);
+ wrmsrl(MSR_PERF_METRICS, 0);
+ if (event)
+ update_saved_topdown_regs(event, 0, 0, metric_end);
+ }
+
+ return slots;
+}
+
+static u64 icl_update_topdown_event(struct perf_event *event)
+{
+ return intel_update_topdown_event(event, INTEL_PMC_IDX_METRIC_BASE +
+ x86_pmu.num_topdown_events - 1);
+}
+
+static u64 adl_update_topdown_event(struct perf_event *event)
+{
+ struct x86_hybrid_pmu *pmu = hybrid_pmu(event->pmu);
+
+ if (pmu->cpu_type != hybrid_big)
+ return 0;
+
+ return icl_update_topdown_event(event);
+}
+
+DEFINE_STATIC_CALL(intel_pmu_update_topdown_event, x86_perf_event_update);
+
+static void intel_pmu_read_topdown_event(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /* Only need to call update_topdown_event() once for group read. */
+ if ((cpuc->txn_flags & PERF_PMU_TXN_READ) &&
+ !is_slots_event(event))
+ return;
+
+ perf_pmu_disable(event->pmu);
+ static_call(intel_pmu_update_topdown_event)(event);
+ perf_pmu_enable(event->pmu);
+}
+
+static void intel_pmu_read_event(struct perf_event *event)
+{
+ if (event->hw.flags & PERF_X86_EVENT_AUTO_RELOAD)
+ intel_pmu_auto_reload_read(event);
+ else if (is_topdown_count(event))
+ intel_pmu_read_topdown_event(event);
+ else
+ x86_perf_event_update(event);
+}
+
+static void intel_pmu_enable_fixed(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event *hwc = &event->hw;
+ u64 mask, bits = 0;
+ int idx = hwc->idx;
+
+ if (is_topdown_idx(idx)) {
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ /*
+ * When there are other active TopDown events,
+ * don't enable the fixed counter 3 again.
+ */
+ if (*(u64 *)cpuc->active_mask & INTEL_PMC_OTHER_TOPDOWN_BITS(idx))
+ return;
+
+ idx = INTEL_PMC_IDX_FIXED_SLOTS;
+ }
+
+ intel_set_masks(event, idx);
+
+ /*
+ * Enable IRQ generation (0x8), if not PEBS,
+ * and enable ring-3 counting (0x2) and ring-0 counting (0x1)
+ * if requested:
+ */
+ if (!event->attr.precise_ip)
+ bits |= 0x8;
+ if (hwc->config & ARCH_PERFMON_EVENTSEL_USR)
+ bits |= 0x2;
+ if (hwc->config & ARCH_PERFMON_EVENTSEL_OS)
+ bits |= 0x1;
+
+ /*
+ * ANY bit is supported in v3 and up
+ */
+ if (x86_pmu.version > 2 && hwc->config & ARCH_PERFMON_EVENTSEL_ANY)
+ bits |= 0x4;
+
+ idx -= INTEL_PMC_IDX_FIXED;
+ bits <<= (idx * 4);
+ mask = 0xfULL << (idx * 4);
+
+ if (x86_pmu.intel_cap.pebs_baseline && event->attr.precise_ip) {
+ bits |= ICL_FIXED_0_ADAPTIVE << (idx * 4);
+ mask |= ICL_FIXED_0_ADAPTIVE << (idx * 4);
+ }
+
+ cpuc->fixed_ctrl_val &= ~mask;
+ cpuc->fixed_ctrl_val |= bits;
+}
+
+static void intel_pmu_enable_event(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ int idx = hwc->idx;
+
+ if (unlikely(event->attr.precise_ip))
+ intel_pmu_pebs_enable(event);
+
+ switch (idx) {
+ case 0 ... INTEL_PMC_IDX_FIXED - 1:
+ intel_set_masks(event, idx);
+ __x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE);
+ break;
+ case INTEL_PMC_IDX_FIXED ... INTEL_PMC_IDX_FIXED_BTS - 1:
+ case INTEL_PMC_IDX_METRIC_BASE ... INTEL_PMC_IDX_METRIC_END:
+ intel_pmu_enable_fixed(event);
+ break;
+ case INTEL_PMC_IDX_FIXED_BTS:
+ if (!__this_cpu_read(cpu_hw_events.enabled))
+ return;
+ intel_pmu_enable_bts(hwc->config);
+ break;
+ case INTEL_PMC_IDX_FIXED_VLBR:
+ intel_set_masks(event, idx);
+ break;
+ default:
+ pr_warn("Failed to enable the event with invalid index %d\n",
+ idx);
+ }
+}
+
+static void intel_pmu_add_event(struct perf_event *event)
+{
+ if (event->attr.precise_ip)
+ intel_pmu_pebs_add(event);
+ if (needs_branch_stack(event))
+ intel_pmu_lbr_add(event);
+}
+
+/*
+ * Save and restart an expired event. Called by NMI contexts,
+ * so it has to be careful about preempting normal event ops:
+ */
+int intel_pmu_save_and_restart(struct perf_event *event)
+{
+ static_call(x86_pmu_update)(event);
+ /*
+ * For a checkpointed counter always reset back to 0. This
+ * avoids a situation where the counter overflows, aborts the
+ * transaction and is then set back to shortly before the
+ * overflow, and overflows and aborts again.
+ */
+ if (unlikely(event_is_checkpointed(event))) {
+ /* No race with NMIs because the counter should not be armed */
+ wrmsrl(event->hw.event_base, 0);
+ local64_set(&event->hw.prev_count, 0);
+ }
+ return static_call(x86_pmu_set_period)(event);
+}
+
+static int intel_pmu_set_period(struct perf_event *event)
+{
+ if (unlikely(is_topdown_count(event)))
+ return static_call(intel_pmu_set_topdown_event_period)(event);
+
+ return x86_perf_event_set_period(event);
+}
+
+static u64 intel_pmu_update(struct perf_event *event)
+{
+ if (unlikely(is_topdown_count(event)))
+ return static_call(intel_pmu_update_topdown_event)(event);
+
+ return x86_perf_event_update(event);
+}
+
+static void intel_pmu_reset(void)
+{
+ struct debug_store *ds = __this_cpu_read(cpu_hw_events.ds);
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int num_counters_fixed = hybrid(cpuc->pmu, num_counters_fixed);
+ int num_counters = hybrid(cpuc->pmu, num_counters);
+ unsigned long flags;
+ int idx;
+
+ if (!num_counters)
+ return;
+
+ local_irq_save(flags);
+
+ pr_info("clearing PMU state on CPU#%d\n", smp_processor_id());
+
+ for (idx = 0; idx < num_counters; idx++) {
+ wrmsrl_safe(x86_pmu_config_addr(idx), 0ull);
+ wrmsrl_safe(x86_pmu_event_addr(idx), 0ull);
+ }
+ for (idx = 0; idx < num_counters_fixed; idx++) {
+ if (fixed_counter_disabled(idx, cpuc->pmu))
+ continue;
+ wrmsrl_safe(MSR_ARCH_PERFMON_FIXED_CTR0 + idx, 0ull);
+ }
+
+ if (ds)
+ ds->bts_index = ds->bts_buffer_base;
+
+ /* Ack all overflows and disable fixed counters */
+ if (x86_pmu.version >= 2) {
+ intel_pmu_ack_status(intel_pmu_get_status());
+ wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0);
+ }
+
+ /* Reset LBRs and LBR freezing */
+ if (x86_pmu.lbr_nr) {
+ update_debugctlmsr(get_debugctlmsr() &
+ ~(DEBUGCTLMSR_FREEZE_LBRS_ON_PMI|DEBUGCTLMSR_LBR));
+ }
+
+ local_irq_restore(flags);
+}
+
+/*
+ * We may be running with guest PEBS events created by KVM, and the
+ * PEBS records are logged into the guest's DS and invisible to host.
+ *
+ * In the case of guest PEBS overflow, we only trigger a fake event
+ * to emulate the PEBS overflow PMI for guest PEBS counters in KVM.
+ * The guest will then vm-entry and check the guest DS area to read
+ * the guest PEBS records.
+ *
+ * The contents and other behavior of the guest event do not matter.
+ */
+static void x86_pmu_handle_guest_pebs(struct pt_regs *regs,
+ struct perf_sample_data *data)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ u64 guest_pebs_idxs = cpuc->pebs_enabled & ~cpuc->intel_ctrl_host_mask;
+ struct perf_event *event = NULL;
+ int bit;
+
+ if (!unlikely(perf_guest_state()))
+ return;
+
+ if (!x86_pmu.pebs_ept || !x86_pmu.pebs_active ||
+ !guest_pebs_idxs)
+ return;
+
+ for_each_set_bit(bit, (unsigned long *)&guest_pebs_idxs,
+ INTEL_PMC_IDX_FIXED + x86_pmu.num_counters_fixed) {
+ event = cpuc->events[bit];
+ if (!event->attr.precise_ip)
+ continue;
+
+ perf_sample_data_init(data, 0, event->hw.last_period);
+ if (perf_event_overflow(event, data, regs))
+ x86_pmu_stop(event, 0);
+
+ /* Inject one fake event is enough. */
+ break;
+ }
+}
+
+static int handle_pmi_common(struct pt_regs *regs, u64 status)
+{
+ struct perf_sample_data data;
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int bit;
+ int handled = 0;
+ u64 intel_ctrl = hybrid(cpuc->pmu, intel_ctrl);
+
+ inc_irq_stat(apic_perf_irqs);
+
+ /*
+ * Ignore a range of extra bits in status that do not indicate
+ * overflow by themselves.
+ */
+ status &= ~(GLOBAL_STATUS_COND_CHG |
+ GLOBAL_STATUS_ASIF |
+ GLOBAL_STATUS_LBRS_FROZEN);
+ if (!status)
+ return 0;
+ /*
+ * In case multiple PEBS events are sampled at the same time,
+ * it is possible to have GLOBAL_STATUS bit 62 set indicating
+ * PEBS buffer overflow and also seeing at most 3 PEBS counters
+ * having their bits set in the status register. This is a sign
+ * that there was at least one PEBS record pending at the time
+ * of the PMU interrupt. PEBS counters must only be processed
+ * via the drain_pebs() calls and not via the regular sample
+ * processing loop coming after that the function, otherwise
+ * phony regular samples may be generated in the sampling buffer
+ * not marked with the EXACT tag. Another possibility is to have
+ * one PEBS event and at least one non-PEBS event which overflows
+ * while PEBS has armed. In this case, bit 62 of GLOBAL_STATUS will
+ * not be set, yet the overflow status bit for the PEBS counter will
+ * be on Skylake.
+ *
+ * To avoid this problem, we systematically ignore the PEBS-enabled
+ * counters from the GLOBAL_STATUS mask and we always process PEBS
+ * events via drain_pebs().
+ */
+ status &= ~(cpuc->pebs_enabled & x86_pmu.pebs_capable);
+
+ /*
+ * PEBS overflow sets bit 62 in the global status register
+ */
+ if (__test_and_clear_bit(GLOBAL_STATUS_BUFFER_OVF_BIT, (unsigned long *)&status)) {
+ u64 pebs_enabled = cpuc->pebs_enabled;
+
+ handled++;
+ x86_pmu_handle_guest_pebs(regs, &data);
+ x86_pmu.drain_pebs(regs, &data);
+ status &= intel_ctrl | GLOBAL_STATUS_TRACE_TOPAPMI;
+
+ /*
+ * PMI throttle may be triggered, which stops the PEBS event.
+ * Although cpuc->pebs_enabled is updated accordingly, the
+ * MSR_IA32_PEBS_ENABLE is not updated. Because the
+ * cpuc->enabled has been forced to 0 in PMI.
+ * Update the MSR if pebs_enabled is changed.
+ */
+ if (pebs_enabled != cpuc->pebs_enabled)
+ wrmsrl(MSR_IA32_PEBS_ENABLE, cpuc->pebs_enabled);
+ }
+
+ /*
+ * Intel PT
+ */
+ if (__test_and_clear_bit(GLOBAL_STATUS_TRACE_TOPAPMI_BIT, (unsigned long *)&status)) {
+ handled++;
+ if (!perf_guest_handle_intel_pt_intr())
+ intel_pt_interrupt();
+ }
+
+ /*
+ * Intel Perf metrics
+ */
+ if (__test_and_clear_bit(GLOBAL_STATUS_PERF_METRICS_OVF_BIT, (unsigned long *)&status)) {
+ handled++;
+ static_call(intel_pmu_update_topdown_event)(NULL);
+ }
+
+ /*
+ * Checkpointed counters can lead to 'spurious' PMIs because the
+ * rollback caused by the PMI will have cleared the overflow status
+ * bit. Therefore always force probe these counters.
+ */
+ status |= cpuc->intel_cp_status;
+
+ for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) {
+ struct perf_event *event = cpuc->events[bit];
+
+ handled++;
+
+ if (!test_bit(bit, cpuc->active_mask))
+ continue;
+
+ if (!intel_pmu_save_and_restart(event))
+ continue;
+
+ perf_sample_data_init(&data, 0, event->hw.last_period);
+
+ if (has_branch_stack(event))
+ perf_sample_save_brstack(&data, event, &cpuc->lbr_stack);
+
+ if (perf_event_overflow(event, &data, regs))
+ x86_pmu_stop(event, 0);
+ }
+
+ return handled;
+}
+
+/*
+ * This handler is triggered by the local APIC, so the APIC IRQ handling
+ * rules apply:
+ */
+static int intel_pmu_handle_irq(struct pt_regs *regs)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ bool late_ack = hybrid_bit(cpuc->pmu, late_ack);
+ bool mid_ack = hybrid_bit(cpuc->pmu, mid_ack);
+ int loops;
+ u64 status;
+ int handled;
+ int pmu_enabled;
+
+ /*
+ * Save the PMU state.
+ * It needs to be restored when leaving the handler.
+ */
+ pmu_enabled = cpuc->enabled;
+ /*
+ * In general, the early ACK is only applied for old platforms.
+ * For the big core starts from Haswell, the late ACK should be
+ * applied.
+ * For the small core after Tremont, we have to do the ACK right
+ * before re-enabling counters, which is in the middle of the
+ * NMI handler.
+ */
+ if (!late_ack && !mid_ack)
+ apic_write(APIC_LVTPC, APIC_DM_NMI);
+ intel_bts_disable_local();
+ cpuc->enabled = 0;
+ __intel_pmu_disable_all(true);
+ handled = intel_pmu_drain_bts_buffer();
+ handled += intel_bts_interrupt();
+ status = intel_pmu_get_status();
+ if (!status)
+ goto done;
+
+ loops = 0;
+again:
+ intel_pmu_lbr_read();
+ intel_pmu_ack_status(status);
+ if (++loops > 100) {
+ static bool warned;
+
+ if (!warned) {
+ WARN(1, "perfevents: irq loop stuck!\n");
+ perf_event_print_debug();
+ warned = true;
+ }
+ intel_pmu_reset();
+ goto done;
+ }
+
+ handled += handle_pmi_common(regs, status);
+
+ /*
+ * Repeat if there is more work to be done:
+ */
+ status = intel_pmu_get_status();
+ if (status)
+ goto again;
+
+done:
+ if (mid_ack)
+ apic_write(APIC_LVTPC, APIC_DM_NMI);
+ /* Only restore PMU state when it's active. See x86_pmu_disable(). */
+ cpuc->enabled = pmu_enabled;
+ if (pmu_enabled)
+ __intel_pmu_enable_all(0, true);
+ intel_bts_enable_local();
+
+ /*
+ * Only unmask the NMI after the overflow counters
+ * have been reset. This avoids spurious NMIs on
+ * Haswell CPUs.
+ */
+ if (late_ack)
+ apic_write(APIC_LVTPC, APIC_DM_NMI);
+ return handled;
+}
+
+static struct event_constraint *
+intel_bts_constraints(struct perf_event *event)
+{
+ if (unlikely(intel_pmu_has_bts(event)))
+ return &bts_constraint;
+
+ return NULL;
+}
+
+/*
+ * Note: matches a fake event, like Fixed2.
+ */
+static struct event_constraint *
+intel_vlbr_constraints(struct perf_event *event)
+{
+ struct event_constraint *c = &vlbr_constraint;
+
+ if (unlikely(constraint_match(c, event->hw.config))) {
+ event->hw.flags |= c->flags;
+ return c;
+ }
+
+ return NULL;
+}
+
+static int intel_alt_er(struct cpu_hw_events *cpuc,
+ int idx, u64 config)
+{
+ struct extra_reg *extra_regs = hybrid(cpuc->pmu, extra_regs);
+ int alt_idx = idx;
+
+ if (!(x86_pmu.flags & PMU_FL_HAS_RSP_1))
+ return idx;
+
+ if (idx == EXTRA_REG_RSP_0)
+ alt_idx = EXTRA_REG_RSP_1;
+
+ if (idx == EXTRA_REG_RSP_1)
+ alt_idx = EXTRA_REG_RSP_0;
+
+ if (config & ~extra_regs[alt_idx].valid_mask)
+ return idx;
+
+ return alt_idx;
+}
+
+static void intel_fixup_er(struct perf_event *event, int idx)
+{
+ struct extra_reg *extra_regs = hybrid(event->pmu, extra_regs);
+ event->hw.extra_reg.idx = idx;
+
+ if (idx == EXTRA_REG_RSP_0) {
+ event->hw.config &= ~INTEL_ARCH_EVENT_MASK;
+ event->hw.config |= extra_regs[EXTRA_REG_RSP_0].event;
+ event->hw.extra_reg.reg = MSR_OFFCORE_RSP_0;
+ } else if (idx == EXTRA_REG_RSP_1) {
+ event->hw.config &= ~INTEL_ARCH_EVENT_MASK;
+ event->hw.config |= extra_regs[EXTRA_REG_RSP_1].event;
+ event->hw.extra_reg.reg = MSR_OFFCORE_RSP_1;
+ }
+}
+
+/*
+ * manage allocation of shared extra msr for certain events
+ *
+ * sharing can be:
+ * per-cpu: to be shared between the various events on a single PMU
+ * per-core: per-cpu + shared by HT threads
+ */
+static struct event_constraint *
+__intel_shared_reg_get_constraints(struct cpu_hw_events *cpuc,
+ struct perf_event *event,
+ struct hw_perf_event_extra *reg)
+{
+ struct event_constraint *c = &emptyconstraint;
+ struct er_account *era;
+ unsigned long flags;
+ int idx = reg->idx;
+
+ /*
+ * reg->alloc can be set due to existing state, so for fake cpuc we
+ * need to ignore this, otherwise we might fail to allocate proper fake
+ * state for this extra reg constraint. Also see the comment below.
+ */
+ if (reg->alloc && !cpuc->is_fake)
+ return NULL; /* call x86_get_event_constraint() */
+
+again:
+ era = &cpuc->shared_regs->regs[idx];
+ /*
+ * we use spin_lock_irqsave() to avoid lockdep issues when
+ * passing a fake cpuc
+ */
+ raw_spin_lock_irqsave(&era->lock, flags);
+
+ if (!atomic_read(&era->ref) || era->config == reg->config) {
+
+ /*
+ * If its a fake cpuc -- as per validate_{group,event}() we
+ * shouldn't touch event state and we can avoid doing so
+ * since both will only call get_event_constraints() once
+ * on each event, this avoids the need for reg->alloc.
+ *
+ * Not doing the ER fixup will only result in era->reg being
+ * wrong, but since we won't actually try and program hardware
+ * this isn't a problem either.
+ */
+ if (!cpuc->is_fake) {
+ if (idx != reg->idx)
+ intel_fixup_er(event, idx);
+
+ /*
+ * x86_schedule_events() can call get_event_constraints()
+ * multiple times on events in the case of incremental
+ * scheduling(). reg->alloc ensures we only do the ER
+ * allocation once.
+ */
+ reg->alloc = 1;
+ }
+
+ /* lock in msr value */
+ era->config = reg->config;
+ era->reg = reg->reg;
+
+ /* one more user */
+ atomic_inc(&era->ref);
+
+ /*
+ * need to call x86_get_event_constraint()
+ * to check if associated event has constraints
+ */
+ c = NULL;
+ } else {
+ idx = intel_alt_er(cpuc, idx, reg->config);
+ if (idx != reg->idx) {
+ raw_spin_unlock_irqrestore(&era->lock, flags);
+ goto again;
+ }
+ }
+ raw_spin_unlock_irqrestore(&era->lock, flags);
+
+ return c;
+}
+
+static void
+__intel_shared_reg_put_constraints(struct cpu_hw_events *cpuc,
+ struct hw_perf_event_extra *reg)
+{
+ struct er_account *era;
+
+ /*
+ * Only put constraint if extra reg was actually allocated. Also takes
+ * care of event which do not use an extra shared reg.
+ *
+ * Also, if this is a fake cpuc we shouldn't touch any event state
+ * (reg->alloc) and we don't care about leaving inconsistent cpuc state
+ * either since it'll be thrown out.
+ */
+ if (!reg->alloc || cpuc->is_fake)
+ return;
+
+ era = &cpuc->shared_regs->regs[reg->idx];
+
+ /* one fewer user */
+ atomic_dec(&era->ref);
+
+ /* allocate again next time */
+ reg->alloc = 0;
+}
+
+static struct event_constraint *
+intel_shared_regs_constraints(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ struct event_constraint *c = NULL, *d;
+ struct hw_perf_event_extra *xreg, *breg;
+
+ xreg = &event->hw.extra_reg;
+ if (xreg->idx != EXTRA_REG_NONE) {
+ c = __intel_shared_reg_get_constraints(cpuc, event, xreg);
+ if (c == &emptyconstraint)
+ return c;
+ }
+ breg = &event->hw.branch_reg;
+ if (breg->idx != EXTRA_REG_NONE) {
+ d = __intel_shared_reg_get_constraints(cpuc, event, breg);
+ if (d == &emptyconstraint) {
+ __intel_shared_reg_put_constraints(cpuc, xreg);
+ c = d;
+ }
+ }
+ return c;
+}
+
+struct event_constraint *
+x86_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *event_constraints = hybrid(cpuc->pmu, event_constraints);
+ struct event_constraint *c;
+
+ if (event_constraints) {
+ for_each_event_constraint(c, event_constraints) {
+ if (constraint_match(c, event->hw.config)) {
+ event->hw.flags |= c->flags;
+ return c;
+ }
+ }
+ }
+
+ return &hybrid_var(cpuc->pmu, unconstrained);
+}
+
+static struct event_constraint *
+__intel_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c;
+
+ c = intel_vlbr_constraints(event);
+ if (c)
+ return c;
+
+ c = intel_bts_constraints(event);
+ if (c)
+ return c;
+
+ c = intel_shared_regs_constraints(cpuc, event);
+ if (c)
+ return c;
+
+ c = intel_pebs_constraints(event);
+ if (c)
+ return c;
+
+ return x86_get_event_constraints(cpuc, idx, event);
+}
+
+static void
+intel_start_scheduling(struct cpu_hw_events *cpuc)
+{
+ struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs;
+ struct intel_excl_states *xl;
+ int tid = cpuc->excl_thread_id;
+
+ /*
+ * nothing needed if in group validation mode
+ */
+ if (cpuc->is_fake || !is_ht_workaround_enabled())
+ return;
+
+ /*
+ * no exclusion needed
+ */
+ if (WARN_ON_ONCE(!excl_cntrs))
+ return;
+
+ xl = &excl_cntrs->states[tid];
+
+ xl->sched_started = true;
+ /*
+ * lock shared state until we are done scheduling
+ * in stop_event_scheduling()
+ * makes scheduling appear as a transaction
+ */
+ raw_spin_lock(&excl_cntrs->lock);
+}
+
+static void intel_commit_scheduling(struct cpu_hw_events *cpuc, int idx, int cntr)
+{
+ struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs;
+ struct event_constraint *c = cpuc->event_constraint[idx];
+ struct intel_excl_states *xl;
+ int tid = cpuc->excl_thread_id;
+
+ if (cpuc->is_fake || !is_ht_workaround_enabled())
+ return;
+
+ if (WARN_ON_ONCE(!excl_cntrs))
+ return;
+
+ if (!(c->flags & PERF_X86_EVENT_DYNAMIC))
+ return;
+
+ xl = &excl_cntrs->states[tid];
+
+ lockdep_assert_held(&excl_cntrs->lock);
+
+ if (c->flags & PERF_X86_EVENT_EXCL)
+ xl->state[cntr] = INTEL_EXCL_EXCLUSIVE;
+ else
+ xl->state[cntr] = INTEL_EXCL_SHARED;
+}
+
+static void
+intel_stop_scheduling(struct cpu_hw_events *cpuc)
+{
+ struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs;
+ struct intel_excl_states *xl;
+ int tid = cpuc->excl_thread_id;
+
+ /*
+ * nothing needed if in group validation mode
+ */
+ if (cpuc->is_fake || !is_ht_workaround_enabled())
+ return;
+ /*
+ * no exclusion needed
+ */
+ if (WARN_ON_ONCE(!excl_cntrs))
+ return;
+
+ xl = &excl_cntrs->states[tid];
+
+ xl->sched_started = false;
+ /*
+ * release shared state lock (acquired in intel_start_scheduling())
+ */
+ raw_spin_unlock(&excl_cntrs->lock);
+}
+
+static struct event_constraint *
+dyn_constraint(struct cpu_hw_events *cpuc, struct event_constraint *c, int idx)
+{
+ WARN_ON_ONCE(!cpuc->constraint_list);
+
+ if (!(c->flags & PERF_X86_EVENT_DYNAMIC)) {
+ struct event_constraint *cx;
+
+ /*
+ * grab pre-allocated constraint entry
+ */
+ cx = &cpuc->constraint_list[idx];
+
+ /*
+ * initialize dynamic constraint
+ * with static constraint
+ */
+ *cx = *c;
+
+ /*
+ * mark constraint as dynamic
+ */
+ cx->flags |= PERF_X86_EVENT_DYNAMIC;
+ c = cx;
+ }
+
+ return c;
+}
+
+static struct event_constraint *
+intel_get_excl_constraints(struct cpu_hw_events *cpuc, struct perf_event *event,
+ int idx, struct event_constraint *c)
+{
+ struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs;
+ struct intel_excl_states *xlo;
+ int tid = cpuc->excl_thread_id;
+ int is_excl, i, w;
+
+ /*
+ * validating a group does not require
+ * enforcing cross-thread exclusion
+ */
+ if (cpuc->is_fake || !is_ht_workaround_enabled())
+ return c;
+
+ /*
+ * no exclusion needed
+ */
+ if (WARN_ON_ONCE(!excl_cntrs))
+ return c;
+
+ /*
+ * because we modify the constraint, we need
+ * to make a copy. Static constraints come
+ * from static const tables.
+ *
+ * only needed when constraint has not yet
+ * been cloned (marked dynamic)
+ */
+ c = dyn_constraint(cpuc, c, idx);
+
+ /*
+ * From here on, the constraint is dynamic.
+ * Either it was just allocated above, or it
+ * was allocated during a earlier invocation
+ * of this function
+ */
+
+ /*
+ * state of sibling HT
+ */
+ xlo = &excl_cntrs->states[tid ^ 1];
+
+ /*
+ * event requires exclusive counter access
+ * across HT threads
+ */
+ is_excl = c->flags & PERF_X86_EVENT_EXCL;
+ if (is_excl && !(event->hw.flags & PERF_X86_EVENT_EXCL_ACCT)) {
+ event->hw.flags |= PERF_X86_EVENT_EXCL_ACCT;
+ if (!cpuc->n_excl++)
+ WRITE_ONCE(excl_cntrs->has_exclusive[tid], 1);
+ }
+
+ /*
+ * Modify static constraint with current dynamic
+ * state of thread
+ *
+ * EXCLUSIVE: sibling counter measuring exclusive event
+ * SHARED : sibling counter measuring non-exclusive event
+ * UNUSED : sibling counter unused
+ */
+ w = c->weight;
+ for_each_set_bit(i, c->idxmsk, X86_PMC_IDX_MAX) {
+ /*
+ * exclusive event in sibling counter
+ * our corresponding counter cannot be used
+ * regardless of our event
+ */
+ if (xlo->state[i] == INTEL_EXCL_EXCLUSIVE) {
+ __clear_bit(i, c->idxmsk);
+ w--;
+ continue;
+ }
+ /*
+ * if measuring an exclusive event, sibling
+ * measuring non-exclusive, then counter cannot
+ * be used
+ */
+ if (is_excl && xlo->state[i] == INTEL_EXCL_SHARED) {
+ __clear_bit(i, c->idxmsk);
+ w--;
+ continue;
+ }
+ }
+
+ /*
+ * if we return an empty mask, then switch
+ * back to static empty constraint to avoid
+ * the cost of freeing later on
+ */
+ if (!w)
+ c = &emptyconstraint;
+
+ c->weight = w;
+
+ return c;
+}
+
+static struct event_constraint *
+intel_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c1, *c2;
+
+ c1 = cpuc->event_constraint[idx];
+
+ /*
+ * first time only
+ * - static constraint: no change across incremental scheduling calls
+ * - dynamic constraint: handled by intel_get_excl_constraints()
+ */
+ c2 = __intel_get_event_constraints(cpuc, idx, event);
+ if (c1) {
+ WARN_ON_ONCE(!(c1->flags & PERF_X86_EVENT_DYNAMIC));
+ bitmap_copy(c1->idxmsk, c2->idxmsk, X86_PMC_IDX_MAX);
+ c1->weight = c2->weight;
+ c2 = c1;
+ }
+
+ if (cpuc->excl_cntrs)
+ return intel_get_excl_constraints(cpuc, event, idx, c2);
+
+ return c2;
+}
+
+static void intel_put_excl_constraints(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs;
+ int tid = cpuc->excl_thread_id;
+ struct intel_excl_states *xl;
+
+ /*
+ * nothing needed if in group validation mode
+ */
+ if (cpuc->is_fake)
+ return;
+
+ if (WARN_ON_ONCE(!excl_cntrs))
+ return;
+
+ if (hwc->flags & PERF_X86_EVENT_EXCL_ACCT) {
+ hwc->flags &= ~PERF_X86_EVENT_EXCL_ACCT;
+ if (!--cpuc->n_excl)
+ WRITE_ONCE(excl_cntrs->has_exclusive[tid], 0);
+ }
+
+ /*
+ * If event was actually assigned, then mark the counter state as
+ * unused now.
+ */
+ if (hwc->idx >= 0) {
+ xl = &excl_cntrs->states[tid];
+
+ /*
+ * put_constraint may be called from x86_schedule_events()
+ * which already has the lock held so here make locking
+ * conditional.
+ */
+ if (!xl->sched_started)
+ raw_spin_lock(&excl_cntrs->lock);
+
+ xl->state[hwc->idx] = INTEL_EXCL_UNUSED;
+
+ if (!xl->sched_started)
+ raw_spin_unlock(&excl_cntrs->lock);
+ }
+}
+
+static void
+intel_put_shared_regs_event_constraints(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg;
+
+ reg = &event->hw.extra_reg;
+ if (reg->idx != EXTRA_REG_NONE)
+ __intel_shared_reg_put_constraints(cpuc, reg);
+
+ reg = &event->hw.branch_reg;
+ if (reg->idx != EXTRA_REG_NONE)
+ __intel_shared_reg_put_constraints(cpuc, reg);
+}
+
+static void intel_put_event_constraints(struct cpu_hw_events *cpuc,
+ struct perf_event *event)
+{
+ intel_put_shared_regs_event_constraints(cpuc, event);
+
+ /*
+ * is PMU has exclusive counter restrictions, then
+ * all events are subject to and must call the
+ * put_excl_constraints() routine
+ */
+ if (cpuc->excl_cntrs)
+ intel_put_excl_constraints(cpuc, event);
+}
+
+static void intel_pebs_aliases_core2(struct perf_event *event)
+{
+ if ((event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) {
+ /*
+ * Use an alternative encoding for CPU_CLK_UNHALTED.THREAD_P
+ * (0x003c) so that we can use it with PEBS.
+ *
+ * The regular CPU_CLK_UNHALTED.THREAD_P event (0x003c) isn't
+ * PEBS capable. However we can use INST_RETIRED.ANY_P
+ * (0x00c0), which is a PEBS capable event, to get the same
+ * count.
+ *
+ * INST_RETIRED.ANY_P counts the number of cycles that retires
+ * CNTMASK instructions. By setting CNTMASK to a value (16)
+ * larger than the maximum number of instructions that can be
+ * retired per cycle (4) and then inverting the condition, we
+ * count all cycles that retire 16 or less instructions, which
+ * is every cycle.
+ *
+ * Thereby we gain a PEBS capable cycle counter.
+ */
+ u64 alt_config = X86_CONFIG(.event=0xc0, .inv=1, .cmask=16);
+
+ alt_config |= (event->hw.config & ~X86_RAW_EVENT_MASK);
+ event->hw.config = alt_config;
+ }
+}
+
+static void intel_pebs_aliases_snb(struct perf_event *event)
+{
+ if ((event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) {
+ /*
+ * Use an alternative encoding for CPU_CLK_UNHALTED.THREAD_P
+ * (0x003c) so that we can use it with PEBS.
+ *
+ * The regular CPU_CLK_UNHALTED.THREAD_P event (0x003c) isn't
+ * PEBS capable. However we can use UOPS_RETIRED.ALL
+ * (0x01c2), which is a PEBS capable event, to get the same
+ * count.
+ *
+ * UOPS_RETIRED.ALL counts the number of cycles that retires
+ * CNTMASK micro-ops. By setting CNTMASK to a value (16)
+ * larger than the maximum number of micro-ops that can be
+ * retired per cycle (4) and then inverting the condition, we
+ * count all cycles that retire 16 or less micro-ops, which
+ * is every cycle.
+ *
+ * Thereby we gain a PEBS capable cycle counter.
+ */
+ u64 alt_config = X86_CONFIG(.event=0xc2, .umask=0x01, .inv=1, .cmask=16);
+
+ alt_config |= (event->hw.config & ~X86_RAW_EVENT_MASK);
+ event->hw.config = alt_config;
+ }
+}
+
+static void intel_pebs_aliases_precdist(struct perf_event *event)
+{
+ if ((event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) {
+ /*
+ * Use an alternative encoding for CPU_CLK_UNHALTED.THREAD_P
+ * (0x003c) so that we can use it with PEBS.
+ *
+ * The regular CPU_CLK_UNHALTED.THREAD_P event (0x003c) isn't
+ * PEBS capable. However we can use INST_RETIRED.PREC_DIST
+ * (0x01c0), which is a PEBS capable event, to get the same
+ * count.
+ *
+ * The PREC_DIST event has special support to minimize sample
+ * shadowing effects. One drawback is that it can be
+ * only programmed on counter 1, but that seems like an
+ * acceptable trade off.
+ */
+ u64 alt_config = X86_CONFIG(.event=0xc0, .umask=0x01, .inv=1, .cmask=16);
+
+ alt_config |= (event->hw.config & ~X86_RAW_EVENT_MASK);
+ event->hw.config = alt_config;
+ }
+}
+
+static void intel_pebs_aliases_ivb(struct perf_event *event)
+{
+ if (event->attr.precise_ip < 3)
+ return intel_pebs_aliases_snb(event);
+ return intel_pebs_aliases_precdist(event);
+}
+
+static void intel_pebs_aliases_skl(struct perf_event *event)
+{
+ if (event->attr.precise_ip < 3)
+ return intel_pebs_aliases_core2(event);
+ return intel_pebs_aliases_precdist(event);
+}
+
+static unsigned long intel_pmu_large_pebs_flags(struct perf_event *event)
+{
+ unsigned long flags = x86_pmu.large_pebs_flags;
+
+ if (event->attr.use_clockid)
+ flags &= ~PERF_SAMPLE_TIME;
+ if (!event->attr.exclude_kernel)
+ flags &= ~PERF_SAMPLE_REGS_USER;
+ if (event->attr.sample_regs_user & ~PEBS_GP_REGS)
+ flags &= ~(PERF_SAMPLE_REGS_USER | PERF_SAMPLE_REGS_INTR);
+ return flags;
+}
+
+static int intel_pmu_bts_config(struct perf_event *event)
+{
+ struct perf_event_attr *attr = &event->attr;
+
+ if (unlikely(intel_pmu_has_bts(event))) {
+ /* BTS is not supported by this architecture. */
+ if (!x86_pmu.bts_active)
+ return -EOPNOTSUPP;
+
+ /* BTS is currently only allowed for user-mode. */
+ if (!attr->exclude_kernel)
+ return -EOPNOTSUPP;
+
+ /* BTS is not allowed for precise events. */
+ if (attr->precise_ip)
+ return -EOPNOTSUPP;
+
+ /* disallow bts if conflicting events are present */
+ if (x86_add_exclusive(x86_lbr_exclusive_lbr))
+ return -EBUSY;
+
+ event->destroy = hw_perf_lbr_event_destroy;
+ }
+
+ return 0;
+}
+
+static int core_pmu_hw_config(struct perf_event *event)
+{
+ int ret = x86_pmu_hw_config(event);
+
+ if (ret)
+ return ret;
+
+ return intel_pmu_bts_config(event);
+}
+
+#define INTEL_TD_METRIC_AVAILABLE_MAX (INTEL_TD_METRIC_RETIRING + \
+ ((x86_pmu.num_topdown_events - 1) << 8))
+
+static bool is_available_metric_event(struct perf_event *event)
+{
+ return is_metric_event(event) &&
+ event->attr.config <= INTEL_TD_METRIC_AVAILABLE_MAX;
+}
+
+static inline bool is_mem_loads_event(struct perf_event *event)
+{
+ return (event->attr.config & INTEL_ARCH_EVENT_MASK) == X86_CONFIG(.event=0xcd, .umask=0x01);
+}
+
+static inline bool is_mem_loads_aux_event(struct perf_event *event)
+{
+ return (event->attr.config & INTEL_ARCH_EVENT_MASK) == X86_CONFIG(.event=0x03, .umask=0x82);
+}
+
+static inline bool require_mem_loads_aux_event(struct perf_event *event)
+{
+ if (!(x86_pmu.flags & PMU_FL_MEM_LOADS_AUX))
+ return false;
+
+ if (is_hybrid())
+ return hybrid_pmu(event->pmu)->cpu_type == hybrid_big;
+
+ return true;
+}
+
+static inline bool intel_pmu_has_cap(struct perf_event *event, int idx)
+{
+ union perf_capabilities *intel_cap = &hybrid(event->pmu, intel_cap);
+
+ return test_bit(idx, (unsigned long *)&intel_cap->capabilities);
+}
+
+static int intel_pmu_hw_config(struct perf_event *event)
+{
+ int ret = x86_pmu_hw_config(event);
+
+ if (ret)
+ return ret;
+
+ ret = intel_pmu_bts_config(event);
+ if (ret)
+ return ret;
+
+ if (event->attr.precise_ip) {
+ if ((event->attr.config & INTEL_ARCH_EVENT_MASK) == INTEL_FIXED_VLBR_EVENT)
+ return -EINVAL;
+
+ if (!(event->attr.freq || (event->attr.wakeup_events && !event->attr.watermark))) {
+ event->hw.flags |= PERF_X86_EVENT_AUTO_RELOAD;
+ if (!(event->attr.sample_type &
+ ~intel_pmu_large_pebs_flags(event))) {
+ event->hw.flags |= PERF_X86_EVENT_LARGE_PEBS;
+ event->attach_state |= PERF_ATTACH_SCHED_CB;
+ }
+ }
+ if (x86_pmu.pebs_aliases)
+ x86_pmu.pebs_aliases(event);
+ }
+
+ if (needs_branch_stack(event)) {
+ ret = intel_pmu_setup_lbr_filter(event);
+ if (ret)
+ return ret;
+ event->attach_state |= PERF_ATTACH_SCHED_CB;
+
+ /*
+ * BTS is set up earlier in this path, so don't account twice
+ */
+ if (!unlikely(intel_pmu_has_bts(event))) {
+ /* disallow lbr if conflicting events are present */
+ if (x86_add_exclusive(x86_lbr_exclusive_lbr))
+ return -EBUSY;
+
+ event->destroy = hw_perf_lbr_event_destroy;
+ }
+ }
+
+ if (event->attr.aux_output) {
+ if (!event->attr.precise_ip)
+ return -EINVAL;
+
+ event->hw.flags |= PERF_X86_EVENT_PEBS_VIA_PT;
+ }
+
+ if ((event->attr.type == PERF_TYPE_HARDWARE) ||
+ (event->attr.type == PERF_TYPE_HW_CACHE))
+ return 0;
+
+ /*
+ * Config Topdown slots and metric events
+ *
+ * The slots event on Fixed Counter 3 can support sampling,
+ * which will be handled normally in x86_perf_event_update().
+ *
+ * Metric events don't support sampling and require being paired
+ * with a slots event as group leader. When the slots event
+ * is used in a metrics group, it too cannot support sampling.
+ */
+ if (intel_pmu_has_cap(event, PERF_CAP_METRICS_IDX) && is_topdown_event(event)) {
+ if (event->attr.config1 || event->attr.config2)
+ return -EINVAL;
+
+ /*
+ * The TopDown metrics events and slots event don't
+ * support any filters.
+ */
+ if (event->attr.config & X86_ALL_EVENT_FLAGS)
+ return -EINVAL;
+
+ if (is_available_metric_event(event)) {
+ struct perf_event *leader = event->group_leader;
+
+ /* The metric events don't support sampling. */
+ if (is_sampling_event(event))
+ return -EINVAL;
+
+ /* The metric events require a slots group leader. */
+ if (!is_slots_event(leader))
+ return -EINVAL;
+
+ /*
+ * The leader/SLOTS must not be a sampling event for
+ * metric use; hardware requires it starts at 0 when used
+ * in conjunction with MSR_PERF_METRICS.
+ */
+ if (is_sampling_event(leader))
+ return -EINVAL;
+
+ event->event_caps |= PERF_EV_CAP_SIBLING;
+ /*
+ * Only once we have a METRICs sibling do we
+ * need TopDown magic.
+ */
+ leader->hw.flags |= PERF_X86_EVENT_TOPDOWN;
+ event->hw.flags |= PERF_X86_EVENT_TOPDOWN;
+ }
+ }
+
+ /*
+ * The load latency event X86_CONFIG(.event=0xcd, .umask=0x01) on SPR
+ * doesn't function quite right. As a work-around it needs to always be
+ * co-scheduled with a auxiliary event X86_CONFIG(.event=0x03, .umask=0x82).
+ * The actual count of this second event is irrelevant it just needs
+ * to be active to make the first event function correctly.
+ *
+ * In a group, the auxiliary event must be in front of the load latency
+ * event. The rule is to simplify the implementation of the check.
+ * That's because perf cannot have a complete group at the moment.
+ */
+ if (require_mem_loads_aux_event(event) &&
+ (event->attr.sample_type & PERF_SAMPLE_DATA_SRC) &&
+ is_mem_loads_event(event)) {
+ struct perf_event *leader = event->group_leader;
+ struct perf_event *sibling = NULL;
+
+ if (!is_mem_loads_aux_event(leader)) {
+ for_each_sibling_event(sibling, leader) {
+ if (is_mem_loads_aux_event(sibling))
+ break;
+ }
+ if (list_entry_is_head(sibling, &leader->sibling_list, sibling_list))
+ return -ENODATA;
+ }
+ }
+
+ if (!(event->attr.config & ARCH_PERFMON_EVENTSEL_ANY))
+ return 0;
+
+ if (x86_pmu.version < 3)
+ return -EINVAL;
+
+ ret = perf_allow_cpu(&event->attr);
+ if (ret)
+ return ret;
+
+ event->hw.config |= ARCH_PERFMON_EVENTSEL_ANY;
+
+ return 0;
+}
+
+/*
+ * Currently, the only caller of this function is the atomic_switch_perf_msrs().
+ * The host perf conext helps to prepare the values of the real hardware for
+ * a set of msrs that need to be switched atomically in a vmx transaction.
+ *
+ * For example, the pseudocode needed to add a new msr should look like:
+ *
+ * arr[(*nr)++] = (struct perf_guest_switch_msr){
+ * .msr = the hardware msr address,
+ * .host = the value the hardware has when it doesn't run a guest,
+ * .guest = the value the hardware has when it runs a guest,
+ * };
+ *
+ * These values have nothing to do with the emulated values the guest sees
+ * when it uses {RD,WR}MSR, which should be handled by the KVM context,
+ * specifically in the intel_pmu_{get,set}_msr().
+ */
+static struct perf_guest_switch_msr *intel_guest_get_msrs(int *nr, void *data)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct perf_guest_switch_msr *arr = cpuc->guest_switch_msrs;
+ struct kvm_pmu *kvm_pmu = (struct kvm_pmu *)data;
+ u64 intel_ctrl = hybrid(cpuc->pmu, intel_ctrl);
+ u64 pebs_mask = cpuc->pebs_enabled & x86_pmu.pebs_capable;
+ int global_ctrl, pebs_enable;
+
+ *nr = 0;
+ global_ctrl = (*nr)++;
+ arr[global_ctrl] = (struct perf_guest_switch_msr){
+ .msr = MSR_CORE_PERF_GLOBAL_CTRL,
+ .host = intel_ctrl & ~cpuc->intel_ctrl_guest_mask,
+ .guest = intel_ctrl & (~cpuc->intel_ctrl_host_mask | ~pebs_mask),
+ };
+
+ if (!x86_pmu.pebs)
+ return arr;
+
+ /*
+ * If PMU counter has PEBS enabled it is not enough to
+ * disable counter on a guest entry since PEBS memory
+ * write can overshoot guest entry and corrupt guest
+ * memory. Disabling PEBS solves the problem.
+ *
+ * Don't do this if the CPU already enforces it.
+ */
+ if (x86_pmu.pebs_no_isolation) {
+ arr[(*nr)++] = (struct perf_guest_switch_msr){
+ .msr = MSR_IA32_PEBS_ENABLE,
+ .host = cpuc->pebs_enabled,
+ .guest = 0,
+ };
+ return arr;
+ }
+
+ if (!kvm_pmu || !x86_pmu.pebs_ept)
+ return arr;
+
+ arr[(*nr)++] = (struct perf_guest_switch_msr){
+ .msr = MSR_IA32_DS_AREA,
+ .host = (unsigned long)cpuc->ds,
+ .guest = kvm_pmu->ds_area,
+ };
+
+ if (x86_pmu.intel_cap.pebs_baseline) {
+ arr[(*nr)++] = (struct perf_guest_switch_msr){
+ .msr = MSR_PEBS_DATA_CFG,
+ .host = cpuc->pebs_data_cfg,
+ .guest = kvm_pmu->pebs_data_cfg,
+ };
+ }
+
+ pebs_enable = (*nr)++;
+ arr[pebs_enable] = (struct perf_guest_switch_msr){
+ .msr = MSR_IA32_PEBS_ENABLE,
+ .host = cpuc->pebs_enabled & ~cpuc->intel_ctrl_guest_mask,
+ .guest = pebs_mask & ~cpuc->intel_ctrl_host_mask,
+ };
+
+ if (arr[pebs_enable].host) {
+ /* Disable guest PEBS if host PEBS is enabled. */
+ arr[pebs_enable].guest = 0;
+ } else {
+ /* Disable guest PEBS thoroughly for cross-mapped PEBS counters. */
+ arr[pebs_enable].guest &= ~kvm_pmu->host_cross_mapped_mask;
+ arr[global_ctrl].guest &= ~kvm_pmu->host_cross_mapped_mask;
+ /* Set hw GLOBAL_CTRL bits for PEBS counter when it runs for guest */
+ arr[global_ctrl].guest |= arr[pebs_enable].guest;
+ }
+
+ return arr;
+}
+
+static struct perf_guest_switch_msr *core_guest_get_msrs(int *nr, void *data)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct perf_guest_switch_msr *arr = cpuc->guest_switch_msrs;
+ int idx;
+
+ for (idx = 0; idx < x86_pmu.num_counters; idx++) {
+ struct perf_event *event = cpuc->events[idx];
+
+ arr[idx].msr = x86_pmu_config_addr(idx);
+ arr[idx].host = arr[idx].guest = 0;
+
+ if (!test_bit(idx, cpuc->active_mask))
+ continue;
+
+ arr[idx].host = arr[idx].guest =
+ event->hw.config | ARCH_PERFMON_EVENTSEL_ENABLE;
+
+ if (event->attr.exclude_host)
+ arr[idx].host &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
+ else if (event->attr.exclude_guest)
+ arr[idx].guest &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
+ }
+
+ *nr = x86_pmu.num_counters;
+ return arr;
+}
+
+static void core_pmu_enable_event(struct perf_event *event)
+{
+ if (!event->attr.exclude_host)
+ x86_pmu_enable_event(event);
+}
+
+static void core_pmu_enable_all(int added)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int idx;
+
+ for (idx = 0; idx < x86_pmu.num_counters; idx++) {
+ struct hw_perf_event *hwc = &cpuc->events[idx]->hw;
+
+ if (!test_bit(idx, cpuc->active_mask) ||
+ cpuc->events[idx]->attr.exclude_host)
+ continue;
+
+ __x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE);
+ }
+}
+
+static int hsw_hw_config(struct perf_event *event)
+{
+ int ret = intel_pmu_hw_config(event);
+
+ if (ret)
+ return ret;
+ if (!boot_cpu_has(X86_FEATURE_RTM) && !boot_cpu_has(X86_FEATURE_HLE))
+ return 0;
+ event->hw.config |= event->attr.config & (HSW_IN_TX|HSW_IN_TX_CHECKPOINTED);
+
+ /*
+ * IN_TX/IN_TX-CP filters are not supported by the Haswell PMU with
+ * PEBS or in ANY thread mode. Since the results are non-sensical forbid
+ * this combination.
+ */
+ if ((event->hw.config & (HSW_IN_TX|HSW_IN_TX_CHECKPOINTED)) &&
+ ((event->hw.config & ARCH_PERFMON_EVENTSEL_ANY) ||
+ event->attr.precise_ip > 0))
+ return -EOPNOTSUPP;
+
+ if (event_is_checkpointed(event)) {
+ /*
+ * Sampling of checkpointed events can cause situations where
+ * the CPU constantly aborts because of a overflow, which is
+ * then checkpointed back and ignored. Forbid checkpointing
+ * for sampling.
+ *
+ * But still allow a long sampling period, so that perf stat
+ * from KVM works.
+ */
+ if (event->attr.sample_period > 0 &&
+ event->attr.sample_period < 0x7fffffff)
+ return -EOPNOTSUPP;
+ }
+ return 0;
+}
+
+static struct event_constraint counter0_constraint =
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0x1);
+
+static struct event_constraint counter1_constraint =
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0x2);
+
+static struct event_constraint counter0_1_constraint =
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0x3);
+
+static struct event_constraint counter2_constraint =
+ EVENT_CONSTRAINT(0, 0x4, 0);
+
+static struct event_constraint fixed0_constraint =
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0);
+
+static struct event_constraint fixed0_counter0_constraint =
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0x100000001ULL);
+
+static struct event_constraint fixed0_counter0_1_constraint =
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0x100000003ULL);
+
+static struct event_constraint counters_1_7_constraint =
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0xfeULL);
+
+static struct event_constraint *
+hsw_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c;
+
+ c = intel_get_event_constraints(cpuc, idx, event);
+
+ /* Handle special quirk on in_tx_checkpointed only in counter 2 */
+ if (event->hw.config & HSW_IN_TX_CHECKPOINTED) {
+ if (c->idxmsk64 & (1U << 2))
+ return &counter2_constraint;
+ return &emptyconstraint;
+ }
+
+ return c;
+}
+
+static struct event_constraint *
+icl_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ /*
+ * Fixed counter 0 has less skid.
+ * Force instruction:ppp in Fixed counter 0
+ */
+ if ((event->attr.precise_ip == 3) &&
+ constraint_match(&fixed0_constraint, event->hw.config))
+ return &fixed0_constraint;
+
+ return hsw_get_event_constraints(cpuc, idx, event);
+}
+
+static struct event_constraint *
+spr_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c;
+
+ c = icl_get_event_constraints(cpuc, idx, event);
+
+ /*
+ * The :ppp indicates the Precise Distribution (PDist) facility, which
+ * is only supported on the GP counter 0. If a :ppp event which is not
+ * available on the GP counter 0, error out.
+ * Exception: Instruction PDIR is only available on the fixed counter 0.
+ */
+ if ((event->attr.precise_ip == 3) &&
+ !constraint_match(&fixed0_constraint, event->hw.config)) {
+ if (c->idxmsk64 & BIT_ULL(0))
+ return &counter0_constraint;
+
+ return &emptyconstraint;
+ }
+
+ return c;
+}
+
+static struct event_constraint *
+glp_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c;
+
+ /* :ppp means to do reduced skid PEBS which is PMC0 only. */
+ if (event->attr.precise_ip == 3)
+ return &counter0_constraint;
+
+ c = intel_get_event_constraints(cpuc, idx, event);
+
+ return c;
+}
+
+static struct event_constraint *
+tnt_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c;
+
+ c = intel_get_event_constraints(cpuc, idx, event);
+
+ /*
+ * :ppp means to do reduced skid PEBS,
+ * which is available on PMC0 and fixed counter 0.
+ */
+ if (event->attr.precise_ip == 3) {
+ /* Force instruction:ppp on PMC0 and Fixed counter 0 */
+ if (constraint_match(&fixed0_constraint, event->hw.config))
+ return &fixed0_counter0_constraint;
+
+ return &counter0_constraint;
+ }
+
+ return c;
+}
+
+static bool allow_tsx_force_abort = true;
+
+static struct event_constraint *
+tfa_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c = hsw_get_event_constraints(cpuc, idx, event);
+
+ /*
+ * Without TFA we must not use PMC3.
+ */
+ if (!allow_tsx_force_abort && test_bit(3, c->idxmsk)) {
+ c = dyn_constraint(cpuc, c, idx);
+ c->idxmsk64 &= ~(1ULL << 3);
+ c->weight--;
+ }
+
+ return c;
+}
+
+static struct event_constraint *
+adl_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct x86_hybrid_pmu *pmu = hybrid_pmu(event->pmu);
+
+ if (pmu->cpu_type == hybrid_big)
+ return spr_get_event_constraints(cpuc, idx, event);
+ else if (pmu->cpu_type == hybrid_small)
+ return tnt_get_event_constraints(cpuc, idx, event);
+
+ WARN_ON(1);
+ return &emptyconstraint;
+}
+
+static struct event_constraint *
+cmt_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c;
+
+ c = intel_get_event_constraints(cpuc, idx, event);
+
+ /*
+ * The :ppp indicates the Precise Distribution (PDist) facility, which
+ * is only supported on the GP counter 0 & 1 and Fixed counter 0.
+ * If a :ppp event which is not available on the above eligible counters,
+ * error out.
+ */
+ if (event->attr.precise_ip == 3) {
+ /* Force instruction:ppp on PMC0, 1 and Fixed counter 0 */
+ if (constraint_match(&fixed0_constraint, event->hw.config))
+ return &fixed0_counter0_1_constraint;
+
+ switch (c->idxmsk64 & 0x3ull) {
+ case 0x1:
+ return &counter0_constraint;
+ case 0x2:
+ return &counter1_constraint;
+ case 0x3:
+ return &counter0_1_constraint;
+ }
+ return &emptyconstraint;
+ }
+
+ return c;
+}
+
+static struct event_constraint *
+rwc_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c;
+
+ c = spr_get_event_constraints(cpuc, idx, event);
+
+ /* The Retire Latency is not supported by the fixed counter 0. */
+ if (event->attr.precise_ip &&
+ (event->attr.sample_type & PERF_SAMPLE_WEIGHT_TYPE) &&
+ constraint_match(&fixed0_constraint, event->hw.config)) {
+ /*
+ * The Instruction PDIR is only available
+ * on the fixed counter 0. Error out for this case.
+ */
+ if (event->attr.precise_ip == 3)
+ return &emptyconstraint;
+ return &counters_1_7_constraint;
+ }
+
+ return c;
+}
+
+static struct event_constraint *
+mtl_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct x86_hybrid_pmu *pmu = hybrid_pmu(event->pmu);
+
+ if (pmu->cpu_type == hybrid_big)
+ return rwc_get_event_constraints(cpuc, idx, event);
+ if (pmu->cpu_type == hybrid_small)
+ return cmt_get_event_constraints(cpuc, idx, event);
+
+ WARN_ON(1);
+ return &emptyconstraint;
+}
+
+static int adl_hw_config(struct perf_event *event)
+{
+ struct x86_hybrid_pmu *pmu = hybrid_pmu(event->pmu);
+
+ if (pmu->cpu_type == hybrid_big)
+ return hsw_hw_config(event);
+ else if (pmu->cpu_type == hybrid_small)
+ return intel_pmu_hw_config(event);
+
+ WARN_ON(1);
+ return -EOPNOTSUPP;
+}
+
+static u8 adl_get_hybrid_cpu_type(void)
+{
+ return hybrid_big;
+}
+
+/*
+ * Broadwell:
+ *
+ * The INST_RETIRED.ALL period always needs to have lowest 6 bits cleared
+ * (BDM55) and it must not use a period smaller than 100 (BDM11). We combine
+ * the two to enforce a minimum period of 128 (the smallest value that has bits
+ * 0-5 cleared and >= 100).
+ *
+ * Because of how the code in x86_perf_event_set_period() works, the truncation
+ * of the lower 6 bits is 'harmless' as we'll occasionally add a longer period
+ * to make up for the 'lost' events due to carrying the 'error' in period_left.
+ *
+ * Therefore the effective (average) period matches the requested period,
+ * despite coarser hardware granularity.
+ */
+static void bdw_limit_period(struct perf_event *event, s64 *left)
+{
+ if ((event->hw.config & INTEL_ARCH_EVENT_MASK) ==
+ X86_CONFIG(.event=0xc0, .umask=0x01)) {
+ if (*left < 128)
+ *left = 128;
+ *left &= ~0x3fULL;
+ }
+}
+
+static void nhm_limit_period(struct perf_event *event, s64 *left)
+{
+ *left = max(*left, 32LL);
+}
+
+static void spr_limit_period(struct perf_event *event, s64 *left)
+{
+ if (event->attr.precise_ip == 3)
+ *left = max(*left, 128LL);
+}
+
+PMU_FORMAT_ATTR(event, "config:0-7" );
+PMU_FORMAT_ATTR(umask, "config:8-15" );
+PMU_FORMAT_ATTR(edge, "config:18" );
+PMU_FORMAT_ATTR(pc, "config:19" );
+PMU_FORMAT_ATTR(any, "config:21" ); /* v3 + */
+PMU_FORMAT_ATTR(inv, "config:23" );
+PMU_FORMAT_ATTR(cmask, "config:24-31" );
+PMU_FORMAT_ATTR(in_tx, "config:32");
+PMU_FORMAT_ATTR(in_tx_cp, "config:33");
+
+static struct attribute *intel_arch_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_pc.attr,
+ &format_attr_inv.attr,
+ &format_attr_cmask.attr,
+ NULL,
+};
+
+ssize_t intel_event_sysfs_show(char *page, u64 config)
+{
+ u64 event = (config & ARCH_PERFMON_EVENTSEL_EVENT);
+
+ return x86_event_sysfs_show(page, config, event);
+}
+
+static struct intel_shared_regs *allocate_shared_regs(int cpu)
+{
+ struct intel_shared_regs *regs;
+ int i;
+
+ regs = kzalloc_node(sizeof(struct intel_shared_regs),
+ GFP_KERNEL, cpu_to_node(cpu));
+ if (regs) {
+ /*
+ * initialize the locks to keep lockdep happy
+ */
+ for (i = 0; i < EXTRA_REG_MAX; i++)
+ raw_spin_lock_init(&regs->regs[i].lock);
+
+ regs->core_id = -1;
+ }
+ return regs;
+}
+
+static struct intel_excl_cntrs *allocate_excl_cntrs(int cpu)
+{
+ struct intel_excl_cntrs *c;
+
+ c = kzalloc_node(sizeof(struct intel_excl_cntrs),
+ GFP_KERNEL, cpu_to_node(cpu));
+ if (c) {
+ raw_spin_lock_init(&c->lock);
+ c->core_id = -1;
+ }
+ return c;
+}
+
+
+int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu)
+{
+ cpuc->pebs_record_size = x86_pmu.pebs_record_size;
+
+ if (is_hybrid() || x86_pmu.extra_regs || x86_pmu.lbr_sel_map) {
+ cpuc->shared_regs = allocate_shared_regs(cpu);
+ if (!cpuc->shared_regs)
+ goto err;
+ }
+
+ if (x86_pmu.flags & (PMU_FL_EXCL_CNTRS | PMU_FL_TFA)) {
+ size_t sz = X86_PMC_IDX_MAX * sizeof(struct event_constraint);
+
+ cpuc->constraint_list = kzalloc_node(sz, GFP_KERNEL, cpu_to_node(cpu));
+ if (!cpuc->constraint_list)
+ goto err_shared_regs;
+ }
+
+ if (x86_pmu.flags & PMU_FL_EXCL_CNTRS) {
+ cpuc->excl_cntrs = allocate_excl_cntrs(cpu);
+ if (!cpuc->excl_cntrs)
+ goto err_constraint_list;
+
+ cpuc->excl_thread_id = 0;
+ }
+
+ return 0;
+
+err_constraint_list:
+ kfree(cpuc->constraint_list);
+ cpuc->constraint_list = NULL;
+
+err_shared_regs:
+ kfree(cpuc->shared_regs);
+ cpuc->shared_regs = NULL;
+
+err:
+ return -ENOMEM;
+}
+
+static int intel_pmu_cpu_prepare(int cpu)
+{
+ return intel_cpuc_prepare(&per_cpu(cpu_hw_events, cpu), cpu);
+}
+
+static void flip_smm_bit(void *data)
+{
+ unsigned long set = *(unsigned long *)data;
+
+ if (set > 0) {
+ msr_set_bit(MSR_IA32_DEBUGCTLMSR,
+ DEBUGCTLMSR_FREEZE_IN_SMM_BIT);
+ } else {
+ msr_clear_bit(MSR_IA32_DEBUGCTLMSR,
+ DEBUGCTLMSR_FREEZE_IN_SMM_BIT);
+ }
+}
+
+static void intel_pmu_check_num_counters(int *num_counters,
+ int *num_counters_fixed,
+ u64 *intel_ctrl, u64 fixed_mask);
+
+static void update_pmu_cap(struct x86_hybrid_pmu *pmu)
+{
+ unsigned int sub_bitmaps = cpuid_eax(ARCH_PERFMON_EXT_LEAF);
+ unsigned int eax, ebx, ecx, edx;
+
+ if (sub_bitmaps & ARCH_PERFMON_NUM_COUNTER_LEAF_BIT) {
+ cpuid_count(ARCH_PERFMON_EXT_LEAF, ARCH_PERFMON_NUM_COUNTER_LEAF,
+ &eax, &ebx, &ecx, &edx);
+ pmu->num_counters = fls(eax);
+ pmu->num_counters_fixed = fls(ebx);
+ intel_pmu_check_num_counters(&pmu->num_counters, &pmu->num_counters_fixed,
+ &pmu->intel_ctrl, ebx);
+ }
+}
+
+static bool init_hybrid_pmu(int cpu)
+{
+ struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+ u8 cpu_type = get_this_hybrid_cpu_type();
+ struct x86_hybrid_pmu *pmu = NULL;
+ int i;
+
+ if (!cpu_type && x86_pmu.get_hybrid_cpu_type)
+ cpu_type = x86_pmu.get_hybrid_cpu_type();
+
+ for (i = 0; i < x86_pmu.num_hybrid_pmus; i++) {
+ if (x86_pmu.hybrid_pmu[i].cpu_type == cpu_type) {
+ pmu = &x86_pmu.hybrid_pmu[i];
+ break;
+ }
+ }
+ if (WARN_ON_ONCE(!pmu || (pmu->pmu.type == -1))) {
+ cpuc->pmu = NULL;
+ return false;
+ }
+
+ /* Only check and dump the PMU information for the first CPU */
+ if (!cpumask_empty(&pmu->supported_cpus))
+ goto end;
+
+ if (this_cpu_has(X86_FEATURE_ARCH_PERFMON_EXT))
+ update_pmu_cap(pmu);
+
+ if (!check_hw_exists(&pmu->pmu, pmu->num_counters, pmu->num_counters_fixed))
+ return false;
+
+ pr_info("%s PMU driver: ", pmu->name);
+
+ if (pmu->intel_cap.pebs_output_pt_available)
+ pr_cont("PEBS-via-PT ");
+
+ pr_cont("\n");
+
+ x86_pmu_show_pmu_cap(pmu->num_counters, pmu->num_counters_fixed,
+ pmu->intel_ctrl);
+
+end:
+ cpumask_set_cpu(cpu, &pmu->supported_cpus);
+ cpuc->pmu = &pmu->pmu;
+
+ return true;
+}
+
+static void intel_pmu_cpu_starting(int cpu)
+{
+ struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+ int core_id = topology_core_id(cpu);
+ int i;
+
+ if (is_hybrid() && !init_hybrid_pmu(cpu))
+ return;
+
+ init_debug_store_on_cpu(cpu);
+ /*
+ * Deal with CPUs that don't clear their LBRs on power-up.
+ */
+ intel_pmu_lbr_reset();
+
+ cpuc->lbr_sel = NULL;
+
+ if (x86_pmu.flags & PMU_FL_TFA) {
+ WARN_ON_ONCE(cpuc->tfa_shadow);
+ cpuc->tfa_shadow = ~0ULL;
+ intel_set_tfa(cpuc, false);
+ }
+
+ if (x86_pmu.version > 1)
+ flip_smm_bit(&x86_pmu.attr_freeze_on_smi);
+
+ /*
+ * Disable perf metrics if any added CPU doesn't support it.
+ *
+ * Turn off the check for a hybrid architecture, because the
+ * architecture MSR, MSR_IA32_PERF_CAPABILITIES, only indicate
+ * the architecture features. The perf metrics is a model-specific
+ * feature for now. The corresponding bit should always be 0 on
+ * a hybrid platform, e.g., Alder Lake.
+ */
+ if (!is_hybrid() && x86_pmu.intel_cap.perf_metrics) {
+ union perf_capabilities perf_cap;
+
+ rdmsrl(MSR_IA32_PERF_CAPABILITIES, perf_cap.capabilities);
+ if (!perf_cap.perf_metrics) {
+ x86_pmu.intel_cap.perf_metrics = 0;
+ x86_pmu.intel_ctrl &= ~(1ULL << GLOBAL_CTRL_EN_PERF_METRICS);
+ }
+ }
+
+ if (!cpuc->shared_regs)
+ return;
+
+ if (!(x86_pmu.flags & PMU_FL_NO_HT_SHARING)) {
+ for_each_cpu(i, topology_sibling_cpumask(cpu)) {
+ struct intel_shared_regs *pc;
+
+ pc = per_cpu(cpu_hw_events, i).shared_regs;
+ if (pc && pc->core_id == core_id) {
+ cpuc->kfree_on_online[0] = cpuc->shared_regs;
+ cpuc->shared_regs = pc;
+ break;
+ }
+ }
+ cpuc->shared_regs->core_id = core_id;
+ cpuc->shared_regs->refcnt++;
+ }
+
+ if (x86_pmu.lbr_sel_map)
+ cpuc->lbr_sel = &cpuc->shared_regs->regs[EXTRA_REG_LBR];
+
+ if (x86_pmu.flags & PMU_FL_EXCL_CNTRS) {
+ for_each_cpu(i, topology_sibling_cpumask(cpu)) {
+ struct cpu_hw_events *sibling;
+ struct intel_excl_cntrs *c;
+
+ sibling = &per_cpu(cpu_hw_events, i);
+ c = sibling->excl_cntrs;
+ if (c && c->core_id == core_id) {
+ cpuc->kfree_on_online[1] = cpuc->excl_cntrs;
+ cpuc->excl_cntrs = c;
+ if (!sibling->excl_thread_id)
+ cpuc->excl_thread_id = 1;
+ break;
+ }
+ }
+ cpuc->excl_cntrs->core_id = core_id;
+ cpuc->excl_cntrs->refcnt++;
+ }
+}
+
+static void free_excl_cntrs(struct cpu_hw_events *cpuc)
+{
+ struct intel_excl_cntrs *c;
+
+ c = cpuc->excl_cntrs;
+ if (c) {
+ if (c->core_id == -1 || --c->refcnt == 0)
+ kfree(c);
+ cpuc->excl_cntrs = NULL;
+ }
+
+ kfree(cpuc->constraint_list);
+ cpuc->constraint_list = NULL;
+}
+
+static void intel_pmu_cpu_dying(int cpu)
+{
+ fini_debug_store_on_cpu(cpu);
+}
+
+void intel_cpuc_finish(struct cpu_hw_events *cpuc)
+{
+ struct intel_shared_regs *pc;
+
+ pc = cpuc->shared_regs;
+ if (pc) {
+ if (pc->core_id == -1 || --pc->refcnt == 0)
+ kfree(pc);
+ cpuc->shared_regs = NULL;
+ }
+
+ free_excl_cntrs(cpuc);
+}
+
+static void intel_pmu_cpu_dead(int cpu)
+{
+ struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu);
+
+ intel_cpuc_finish(cpuc);
+
+ if (is_hybrid() && cpuc->pmu)
+ cpumask_clear_cpu(cpu, &hybrid_pmu(cpuc->pmu)->supported_cpus);
+}
+
+static void intel_pmu_sched_task(struct perf_event_pmu_context *pmu_ctx,
+ bool sched_in)
+{
+ intel_pmu_pebs_sched_task(pmu_ctx, sched_in);
+ intel_pmu_lbr_sched_task(pmu_ctx, sched_in);
+}
+
+static void intel_pmu_swap_task_ctx(struct perf_event_pmu_context *prev_epc,
+ struct perf_event_pmu_context *next_epc)
+{
+ intel_pmu_lbr_swap_task_ctx(prev_epc, next_epc);
+}
+
+static int intel_pmu_check_period(struct perf_event *event, u64 value)
+{
+ return intel_pmu_has_bts_period(event, value) ? -EINVAL : 0;
+}
+
+static void intel_aux_output_init(void)
+{
+ /* Refer also intel_pmu_aux_output_match() */
+ if (x86_pmu.intel_cap.pebs_output_pt_available)
+ x86_pmu.assign = intel_pmu_assign_event;
+}
+
+static int intel_pmu_aux_output_match(struct perf_event *event)
+{
+ /* intel_pmu_assign_event() is needed, refer intel_aux_output_init() */
+ if (!x86_pmu.intel_cap.pebs_output_pt_available)
+ return 0;
+
+ return is_intel_pt_event(event);
+}
+
+static void intel_pmu_filter(struct pmu *pmu, int cpu, bool *ret)
+{
+ struct x86_hybrid_pmu *hpmu = hybrid_pmu(pmu);
+
+ *ret = !cpumask_test_cpu(cpu, &hpmu->supported_cpus);
+}
+
+PMU_FORMAT_ATTR(offcore_rsp, "config1:0-63");
+
+PMU_FORMAT_ATTR(ldlat, "config1:0-15");
+
+PMU_FORMAT_ATTR(frontend, "config1:0-23");
+
+static struct attribute *intel_arch3_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_pc.attr,
+ &format_attr_any.attr,
+ &format_attr_inv.attr,
+ &format_attr_cmask.attr,
+ NULL,
+};
+
+static struct attribute *hsw_format_attr[] = {
+ &format_attr_in_tx.attr,
+ &format_attr_in_tx_cp.attr,
+ &format_attr_offcore_rsp.attr,
+ &format_attr_ldlat.attr,
+ NULL
+};
+
+static struct attribute *nhm_format_attr[] = {
+ &format_attr_offcore_rsp.attr,
+ &format_attr_ldlat.attr,
+ NULL
+};
+
+static struct attribute *slm_format_attr[] = {
+ &format_attr_offcore_rsp.attr,
+ NULL
+};
+
+static struct attribute *skl_format_attr[] = {
+ &format_attr_frontend.attr,
+ NULL,
+};
+
+static __initconst const struct x86_pmu core_pmu = {
+ .name = "core",
+ .handle_irq = x86_pmu_handle_irq,
+ .disable_all = x86_pmu_disable_all,
+ .enable_all = core_pmu_enable_all,
+ .enable = core_pmu_enable_event,
+ .disable = x86_pmu_disable_event,
+ .hw_config = core_pmu_hw_config,
+ .schedule_events = x86_schedule_events,
+ .eventsel = MSR_ARCH_PERFMON_EVENTSEL0,
+ .perfctr = MSR_ARCH_PERFMON_PERFCTR0,
+ .event_map = intel_pmu_event_map,
+ .max_events = ARRAY_SIZE(intel_perfmon_event_map),
+ .apic = 1,
+ .large_pebs_flags = LARGE_PEBS_FLAGS,
+
+ /*
+ * Intel PMCs cannot be accessed sanely above 32-bit width,
+ * so we install an artificial 1<<31 period regardless of
+ * the generic event period:
+ */
+ .max_period = (1ULL<<31) - 1,
+ .get_event_constraints = intel_get_event_constraints,
+ .put_event_constraints = intel_put_event_constraints,
+ .event_constraints = intel_core_event_constraints,
+ .guest_get_msrs = core_guest_get_msrs,
+ .format_attrs = intel_arch_formats_attr,
+ .events_sysfs_show = intel_event_sysfs_show,
+
+ /*
+ * Virtual (or funny metal) CPU can define x86_pmu.extra_regs
+ * together with PMU version 1 and thus be using core_pmu with
+ * shared_regs. We need following callbacks here to allocate
+ * it properly.
+ */
+ .cpu_prepare = intel_pmu_cpu_prepare,
+ .cpu_starting = intel_pmu_cpu_starting,
+ .cpu_dying = intel_pmu_cpu_dying,
+ .cpu_dead = intel_pmu_cpu_dead,
+
+ .check_period = intel_pmu_check_period,
+
+ .lbr_reset = intel_pmu_lbr_reset_64,
+ .lbr_read = intel_pmu_lbr_read_64,
+ .lbr_save = intel_pmu_lbr_save,
+ .lbr_restore = intel_pmu_lbr_restore,
+};
+
+static __initconst const struct x86_pmu intel_pmu = {
+ .name = "Intel",
+ .handle_irq = intel_pmu_handle_irq,
+ .disable_all = intel_pmu_disable_all,
+ .enable_all = intel_pmu_enable_all,
+ .enable = intel_pmu_enable_event,
+ .disable = intel_pmu_disable_event,
+ .add = intel_pmu_add_event,
+ .del = intel_pmu_del_event,
+ .read = intel_pmu_read_event,
+ .set_period = intel_pmu_set_period,
+ .update = intel_pmu_update,
+ .hw_config = intel_pmu_hw_config,
+ .schedule_events = x86_schedule_events,
+ .eventsel = MSR_ARCH_PERFMON_EVENTSEL0,
+ .perfctr = MSR_ARCH_PERFMON_PERFCTR0,
+ .event_map = intel_pmu_event_map,
+ .max_events = ARRAY_SIZE(intel_perfmon_event_map),
+ .apic = 1,
+ .large_pebs_flags = LARGE_PEBS_FLAGS,
+ /*
+ * Intel PMCs cannot be accessed sanely above 32 bit width,
+ * so we install an artificial 1<<31 period regardless of
+ * the generic event period:
+ */
+ .max_period = (1ULL << 31) - 1,
+ .get_event_constraints = intel_get_event_constraints,
+ .put_event_constraints = intel_put_event_constraints,
+ .pebs_aliases = intel_pebs_aliases_core2,
+
+ .format_attrs = intel_arch3_formats_attr,
+ .events_sysfs_show = intel_event_sysfs_show,
+
+ .cpu_prepare = intel_pmu_cpu_prepare,
+ .cpu_starting = intel_pmu_cpu_starting,
+ .cpu_dying = intel_pmu_cpu_dying,
+ .cpu_dead = intel_pmu_cpu_dead,
+
+ .guest_get_msrs = intel_guest_get_msrs,
+ .sched_task = intel_pmu_sched_task,
+ .swap_task_ctx = intel_pmu_swap_task_ctx,
+
+ .check_period = intel_pmu_check_period,
+
+ .aux_output_match = intel_pmu_aux_output_match,
+
+ .lbr_reset = intel_pmu_lbr_reset_64,
+ .lbr_read = intel_pmu_lbr_read_64,
+ .lbr_save = intel_pmu_lbr_save,
+ .lbr_restore = intel_pmu_lbr_restore,
+
+ /*
+ * SMM has access to all 4 rings and while traditionally SMM code only
+ * ran in CPL0, 2021-era firmware is starting to make use of CPL3 in SMM.
+ *
+ * Since the EVENTSEL.{USR,OS} CPL filtering makes no distinction
+ * between SMM or not, this results in what should be pure userspace
+ * counters including SMM data.
+ *
+ * This is a clear privilege issue, therefore globally disable
+ * counting SMM by default.
+ */
+ .attr_freeze_on_smi = 1,
+};
+
+static __init void intel_clovertown_quirk(void)
+{
+ /*
+ * PEBS is unreliable due to:
+ *
+ * AJ67 - PEBS may experience CPL leaks
+ * AJ68 - PEBS PMI may be delayed by one event
+ * AJ69 - GLOBAL_STATUS[62] will only be set when DEBUGCTL[12]
+ * AJ106 - FREEZE_LBRS_ON_PMI doesn't work in combination with PEBS
+ *
+ * AJ67 could be worked around by restricting the OS/USR flags.
+ * AJ69 could be worked around by setting PMU_FREEZE_ON_PMI.
+ *
+ * AJ106 could possibly be worked around by not allowing LBR
+ * usage from PEBS, including the fixup.
+ * AJ68 could possibly be worked around by always programming
+ * a pebs_event_reset[0] value and coping with the lost events.
+ *
+ * But taken together it might just make sense to not enable PEBS on
+ * these chips.
+ */
+ pr_warn("PEBS disabled due to CPU errata\n");
+ x86_pmu.pebs = 0;
+ x86_pmu.pebs_constraints = NULL;
+}
+
+static const struct x86_cpu_desc isolation_ucodes[] = {
+ INTEL_CPU_DESC(INTEL_FAM6_HASWELL, 3, 0x0000001f),
+ INTEL_CPU_DESC(INTEL_FAM6_HASWELL_L, 1, 0x0000001e),
+ INTEL_CPU_DESC(INTEL_FAM6_HASWELL_G, 1, 0x00000015),
+ INTEL_CPU_DESC(INTEL_FAM6_HASWELL_X, 2, 0x00000037),
+ INTEL_CPU_DESC(INTEL_FAM6_HASWELL_X, 4, 0x0000000a),
+ INTEL_CPU_DESC(INTEL_FAM6_BROADWELL, 4, 0x00000023),
+ INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_G, 1, 0x00000014),
+ INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_D, 2, 0x00000010),
+ INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_D, 3, 0x07000009),
+ INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_D, 4, 0x0f000009),
+ INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_D, 5, 0x0e000002),
+ INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_X, 1, 0x0b000014),
+ INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 3, 0x00000021),
+ INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 4, 0x00000000),
+ INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 5, 0x00000000),
+ INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 6, 0x00000000),
+ INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 7, 0x00000000),
+ INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 11, 0x00000000),
+ INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_L, 3, 0x0000007c),
+ INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE, 3, 0x0000007c),
+ INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE, 9, 0x0000004e),
+ INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_L, 9, 0x0000004e),
+ INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_L, 10, 0x0000004e),
+ INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_L, 11, 0x0000004e),
+ INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_L, 12, 0x0000004e),
+ INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE, 10, 0x0000004e),
+ INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE, 11, 0x0000004e),
+ INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE, 12, 0x0000004e),
+ INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE, 13, 0x0000004e),
+ {}
+};
+
+static void intel_check_pebs_isolation(void)
+{
+ x86_pmu.pebs_no_isolation = !x86_cpu_has_min_microcode_rev(isolation_ucodes);
+}
+
+static __init void intel_pebs_isolation_quirk(void)
+{
+ WARN_ON_ONCE(x86_pmu.check_microcode);
+ x86_pmu.check_microcode = intel_check_pebs_isolation;
+ intel_check_pebs_isolation();
+}
+
+static const struct x86_cpu_desc pebs_ucodes[] = {
+ INTEL_CPU_DESC(INTEL_FAM6_SANDYBRIDGE, 7, 0x00000028),
+ INTEL_CPU_DESC(INTEL_FAM6_SANDYBRIDGE_X, 6, 0x00000618),
+ INTEL_CPU_DESC(INTEL_FAM6_SANDYBRIDGE_X, 7, 0x0000070c),
+ {}
+};
+
+static bool intel_snb_pebs_broken(void)
+{
+ return !x86_cpu_has_min_microcode_rev(pebs_ucodes);
+}
+
+static void intel_snb_check_microcode(void)
+{
+ if (intel_snb_pebs_broken() == x86_pmu.pebs_broken)
+ return;
+
+ /*
+ * Serialized by the microcode lock..
+ */
+ if (x86_pmu.pebs_broken) {
+ pr_info("PEBS enabled due to microcode update\n");
+ x86_pmu.pebs_broken = 0;
+ } else {
+ pr_info("PEBS disabled due to CPU errata, please upgrade microcode\n");
+ x86_pmu.pebs_broken = 1;
+ }
+}
+
+static bool is_lbr_from(unsigned long msr)
+{
+ unsigned long lbr_from_nr = x86_pmu.lbr_from + x86_pmu.lbr_nr;
+
+ return x86_pmu.lbr_from <= msr && msr < lbr_from_nr;
+}
+
+/*
+ * Under certain circumstances, access certain MSR may cause #GP.
+ * The function tests if the input MSR can be safely accessed.
+ */
+static bool check_msr(unsigned long msr, u64 mask)
+{
+ u64 val_old, val_new, val_tmp;
+
+ /*
+ * Disable the check for real HW, so we don't
+ * mess with potentially enabled registers:
+ */
+ if (!boot_cpu_has(X86_FEATURE_HYPERVISOR))
+ return true;
+
+ /*
+ * Read the current value, change it and read it back to see if it
+ * matches, this is needed to detect certain hardware emulators
+ * (qemu/kvm) that don't trap on the MSR access and always return 0s.
+ */
+ if (rdmsrl_safe(msr, &val_old))
+ return false;
+
+ /*
+ * Only change the bits which can be updated by wrmsrl.
+ */
+ val_tmp = val_old ^ mask;
+
+ if (is_lbr_from(msr))
+ val_tmp = lbr_from_signext_quirk_wr(val_tmp);
+
+ if (wrmsrl_safe(msr, val_tmp) ||
+ rdmsrl_safe(msr, &val_new))
+ return false;
+
+ /*
+ * Quirk only affects validation in wrmsr(), so wrmsrl()'s value
+ * should equal rdmsrl()'s even with the quirk.
+ */
+ if (val_new != val_tmp)
+ return false;
+
+ if (is_lbr_from(msr))
+ val_old = lbr_from_signext_quirk_wr(val_old);
+
+ /* Here it's sure that the MSR can be safely accessed.
+ * Restore the old value and return.
+ */
+ wrmsrl(msr, val_old);
+
+ return true;
+}
+
+static __init void intel_sandybridge_quirk(void)
+{
+ x86_pmu.check_microcode = intel_snb_check_microcode;
+ cpus_read_lock();
+ intel_snb_check_microcode();
+ cpus_read_unlock();
+}
+
+static const struct { int id; char *name; } intel_arch_events_map[] __initconst = {
+ { PERF_COUNT_HW_CPU_CYCLES, "cpu cycles" },
+ { PERF_COUNT_HW_INSTRUCTIONS, "instructions" },
+ { PERF_COUNT_HW_BUS_CYCLES, "bus cycles" },
+ { PERF_COUNT_HW_CACHE_REFERENCES, "cache references" },
+ { PERF_COUNT_HW_CACHE_MISSES, "cache misses" },
+ { PERF_COUNT_HW_BRANCH_INSTRUCTIONS, "branch instructions" },
+ { PERF_COUNT_HW_BRANCH_MISSES, "branch misses" },
+};
+
+static __init void intel_arch_events_quirk(void)
+{
+ int bit;
+
+ /* disable event that reported as not present by cpuid */
+ for_each_set_bit(bit, x86_pmu.events_mask, ARRAY_SIZE(intel_arch_events_map)) {
+ intel_perfmon_event_map[intel_arch_events_map[bit].id] = 0;
+ pr_warn("CPUID marked event: \'%s\' unavailable\n",
+ intel_arch_events_map[bit].name);
+ }
+}
+
+static __init void intel_nehalem_quirk(void)
+{
+ union cpuid10_ebx ebx;
+
+ ebx.full = x86_pmu.events_maskl;
+ if (ebx.split.no_branch_misses_retired) {
+ /*
+ * Erratum AAJ80 detected, we work it around by using
+ * the BR_MISP_EXEC.ANY event. This will over-count
+ * branch-misses, but it's still much better than the
+ * architectural event which is often completely bogus:
+ */
+ intel_perfmon_event_map[PERF_COUNT_HW_BRANCH_MISSES] = 0x7f89;
+ ebx.split.no_branch_misses_retired = 0;
+ x86_pmu.events_maskl = ebx.full;
+ pr_info("CPU erratum AAJ80 worked around\n");
+ }
+}
+
+/*
+ * enable software workaround for errata:
+ * SNB: BJ122
+ * IVB: BV98
+ * HSW: HSD29
+ *
+ * Only needed when HT is enabled. However detecting
+ * if HT is enabled is difficult (model specific). So instead,
+ * we enable the workaround in the early boot, and verify if
+ * it is needed in a later initcall phase once we have valid
+ * topology information to check if HT is actually enabled
+ */
+static __init void intel_ht_bug(void)
+{
+ x86_pmu.flags |= PMU_FL_EXCL_CNTRS | PMU_FL_EXCL_ENABLED;
+
+ x86_pmu.start_scheduling = intel_start_scheduling;
+ x86_pmu.commit_scheduling = intel_commit_scheduling;
+ x86_pmu.stop_scheduling = intel_stop_scheduling;
+}
+
+EVENT_ATTR_STR(mem-loads, mem_ld_hsw, "event=0xcd,umask=0x1,ldlat=3");
+EVENT_ATTR_STR(mem-stores, mem_st_hsw, "event=0xd0,umask=0x82")
+
+/* Haswell special events */
+EVENT_ATTR_STR(tx-start, tx_start, "event=0xc9,umask=0x1");
+EVENT_ATTR_STR(tx-commit, tx_commit, "event=0xc9,umask=0x2");
+EVENT_ATTR_STR(tx-abort, tx_abort, "event=0xc9,umask=0x4");
+EVENT_ATTR_STR(tx-capacity, tx_capacity, "event=0x54,umask=0x2");
+EVENT_ATTR_STR(tx-conflict, tx_conflict, "event=0x54,umask=0x1");
+EVENT_ATTR_STR(el-start, el_start, "event=0xc8,umask=0x1");
+EVENT_ATTR_STR(el-commit, el_commit, "event=0xc8,umask=0x2");
+EVENT_ATTR_STR(el-abort, el_abort, "event=0xc8,umask=0x4");
+EVENT_ATTR_STR(el-capacity, el_capacity, "event=0x54,umask=0x2");
+EVENT_ATTR_STR(el-conflict, el_conflict, "event=0x54,umask=0x1");
+EVENT_ATTR_STR(cycles-t, cycles_t, "event=0x3c,in_tx=1");
+EVENT_ATTR_STR(cycles-ct, cycles_ct, "event=0x3c,in_tx=1,in_tx_cp=1");
+
+static struct attribute *hsw_events_attrs[] = {
+ EVENT_PTR(td_slots_issued),
+ EVENT_PTR(td_slots_retired),
+ EVENT_PTR(td_fetch_bubbles),
+ EVENT_PTR(td_total_slots),
+ EVENT_PTR(td_total_slots_scale),
+ EVENT_PTR(td_recovery_bubbles),
+ EVENT_PTR(td_recovery_bubbles_scale),
+ NULL
+};
+
+static struct attribute *hsw_mem_events_attrs[] = {
+ EVENT_PTR(mem_ld_hsw),
+ EVENT_PTR(mem_st_hsw),
+ NULL,
+};
+
+static struct attribute *hsw_tsx_events_attrs[] = {
+ EVENT_PTR(tx_start),
+ EVENT_PTR(tx_commit),
+ EVENT_PTR(tx_abort),
+ EVENT_PTR(tx_capacity),
+ EVENT_PTR(tx_conflict),
+ EVENT_PTR(el_start),
+ EVENT_PTR(el_commit),
+ EVENT_PTR(el_abort),
+ EVENT_PTR(el_capacity),
+ EVENT_PTR(el_conflict),
+ EVENT_PTR(cycles_t),
+ EVENT_PTR(cycles_ct),
+ NULL
+};
+
+EVENT_ATTR_STR(tx-capacity-read, tx_capacity_read, "event=0x54,umask=0x80");
+EVENT_ATTR_STR(tx-capacity-write, tx_capacity_write, "event=0x54,umask=0x2");
+EVENT_ATTR_STR(el-capacity-read, el_capacity_read, "event=0x54,umask=0x80");
+EVENT_ATTR_STR(el-capacity-write, el_capacity_write, "event=0x54,umask=0x2");
+
+static struct attribute *icl_events_attrs[] = {
+ EVENT_PTR(mem_ld_hsw),
+ EVENT_PTR(mem_st_hsw),
+ NULL,
+};
+
+static struct attribute *icl_td_events_attrs[] = {
+ EVENT_PTR(slots),
+ EVENT_PTR(td_retiring),
+ EVENT_PTR(td_bad_spec),
+ EVENT_PTR(td_fe_bound),
+ EVENT_PTR(td_be_bound),
+ NULL,
+};
+
+static struct attribute *icl_tsx_events_attrs[] = {
+ EVENT_PTR(tx_start),
+ EVENT_PTR(tx_abort),
+ EVENT_PTR(tx_commit),
+ EVENT_PTR(tx_capacity_read),
+ EVENT_PTR(tx_capacity_write),
+ EVENT_PTR(tx_conflict),
+ EVENT_PTR(el_start),
+ EVENT_PTR(el_abort),
+ EVENT_PTR(el_commit),
+ EVENT_PTR(el_capacity_read),
+ EVENT_PTR(el_capacity_write),
+ EVENT_PTR(el_conflict),
+ EVENT_PTR(cycles_t),
+ EVENT_PTR(cycles_ct),
+ NULL,
+};
+
+
+EVENT_ATTR_STR(mem-stores, mem_st_spr, "event=0xcd,umask=0x2");
+EVENT_ATTR_STR(mem-loads-aux, mem_ld_aux, "event=0x03,umask=0x82");
+
+static struct attribute *spr_events_attrs[] = {
+ EVENT_PTR(mem_ld_hsw),
+ EVENT_PTR(mem_st_spr),
+ EVENT_PTR(mem_ld_aux),
+ NULL,
+};
+
+static struct attribute *spr_td_events_attrs[] = {
+ EVENT_PTR(slots),
+ EVENT_PTR(td_retiring),
+ EVENT_PTR(td_bad_spec),
+ EVENT_PTR(td_fe_bound),
+ EVENT_PTR(td_be_bound),
+ EVENT_PTR(td_heavy_ops),
+ EVENT_PTR(td_br_mispredict),
+ EVENT_PTR(td_fetch_lat),
+ EVENT_PTR(td_mem_bound),
+ NULL,
+};
+
+static struct attribute *spr_tsx_events_attrs[] = {
+ EVENT_PTR(tx_start),
+ EVENT_PTR(tx_abort),
+ EVENT_PTR(tx_commit),
+ EVENT_PTR(tx_capacity_read),
+ EVENT_PTR(tx_capacity_write),
+ EVENT_PTR(tx_conflict),
+ EVENT_PTR(cycles_t),
+ EVENT_PTR(cycles_ct),
+ NULL,
+};
+
+static ssize_t freeze_on_smi_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "%lu\n", x86_pmu.attr_freeze_on_smi);
+}
+
+static DEFINE_MUTEX(freeze_on_smi_mutex);
+
+static ssize_t freeze_on_smi_store(struct device *cdev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long val;
+ ssize_t ret;
+
+ ret = kstrtoul(buf, 0, &val);
+ if (ret)
+ return ret;
+
+ if (val > 1)
+ return -EINVAL;
+
+ mutex_lock(&freeze_on_smi_mutex);
+
+ if (x86_pmu.attr_freeze_on_smi == val)
+ goto done;
+
+ x86_pmu.attr_freeze_on_smi = val;
+
+ cpus_read_lock();
+ on_each_cpu(flip_smm_bit, &val, 1);
+ cpus_read_unlock();
+done:
+ mutex_unlock(&freeze_on_smi_mutex);
+
+ return count;
+}
+
+static void update_tfa_sched(void *ignored)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /*
+ * check if PMC3 is used
+ * and if so force schedule out for all event types all contexts
+ */
+ if (test_bit(3, cpuc->active_mask))
+ perf_pmu_resched(x86_get_pmu(smp_processor_id()));
+}
+
+static ssize_t show_sysctl_tfa(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, 40, "%d\n", allow_tsx_force_abort);
+}
+
+static ssize_t set_sysctl_tfa(struct device *cdev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ bool val;
+ ssize_t ret;
+
+ ret = kstrtobool(buf, &val);
+ if (ret)
+ return ret;
+
+ /* no change */
+ if (val == allow_tsx_force_abort)
+ return count;
+
+ allow_tsx_force_abort = val;
+
+ cpus_read_lock();
+ on_each_cpu(update_tfa_sched, NULL, 1);
+ cpus_read_unlock();
+
+ return count;
+}
+
+
+static DEVICE_ATTR_RW(freeze_on_smi);
+
+static ssize_t branches_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%d\n", x86_pmu.lbr_nr);
+}
+
+static DEVICE_ATTR_RO(branches);
+
+static struct attribute *lbr_attrs[] = {
+ &dev_attr_branches.attr,
+ NULL
+};
+
+static char pmu_name_str[30];
+
+static ssize_t pmu_name_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return snprintf(buf, PAGE_SIZE, "%s\n", pmu_name_str);
+}
+
+static DEVICE_ATTR_RO(pmu_name);
+
+static struct attribute *intel_pmu_caps_attrs[] = {
+ &dev_attr_pmu_name.attr,
+ NULL
+};
+
+static DEVICE_ATTR(allow_tsx_force_abort, 0644,
+ show_sysctl_tfa,
+ set_sysctl_tfa);
+
+static struct attribute *intel_pmu_attrs[] = {
+ &dev_attr_freeze_on_smi.attr,
+ &dev_attr_allow_tsx_force_abort.attr,
+ NULL,
+};
+
+static umode_t
+tsx_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return boot_cpu_has(X86_FEATURE_RTM) ? attr->mode : 0;
+}
+
+static umode_t
+pebs_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return x86_pmu.pebs ? attr->mode : 0;
+}
+
+static umode_t
+mem_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ if (attr == &event_attr_mem_ld_aux.attr.attr)
+ return x86_pmu.flags & PMU_FL_MEM_LOADS_AUX ? attr->mode : 0;
+
+ return pebs_is_visible(kobj, attr, i);
+}
+
+static umode_t
+lbr_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return x86_pmu.lbr_nr ? attr->mode : 0;
+}
+
+static umode_t
+exra_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return x86_pmu.version >= 2 ? attr->mode : 0;
+}
+
+static umode_t
+default_is_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ if (attr == &dev_attr_allow_tsx_force_abort.attr)
+ return x86_pmu.flags & PMU_FL_TFA ? attr->mode : 0;
+
+ return attr->mode;
+}
+
+static struct attribute_group group_events_td = {
+ .name = "events",
+};
+
+static struct attribute_group group_events_mem = {
+ .name = "events",
+ .is_visible = mem_is_visible,
+};
+
+static struct attribute_group group_events_tsx = {
+ .name = "events",
+ .is_visible = tsx_is_visible,
+};
+
+static struct attribute_group group_caps_gen = {
+ .name = "caps",
+ .attrs = intel_pmu_caps_attrs,
+};
+
+static struct attribute_group group_caps_lbr = {
+ .name = "caps",
+ .attrs = lbr_attrs,
+ .is_visible = lbr_is_visible,
+};
+
+static struct attribute_group group_format_extra = {
+ .name = "format",
+ .is_visible = exra_is_visible,
+};
+
+static struct attribute_group group_format_extra_skl = {
+ .name = "format",
+ .is_visible = exra_is_visible,
+};
+
+static struct attribute_group group_default = {
+ .attrs = intel_pmu_attrs,
+ .is_visible = default_is_visible,
+};
+
+static const struct attribute_group *attr_update[] = {
+ &group_events_td,
+ &group_events_mem,
+ &group_events_tsx,
+ &group_caps_gen,
+ &group_caps_lbr,
+ &group_format_extra,
+ &group_format_extra_skl,
+ &group_default,
+ NULL,
+};
+
+EVENT_ATTR_STR_HYBRID(slots, slots_adl, "event=0x00,umask=0x4", hybrid_big);
+EVENT_ATTR_STR_HYBRID(topdown-retiring, td_retiring_adl, "event=0xc2,umask=0x0;event=0x00,umask=0x80", hybrid_big_small);
+EVENT_ATTR_STR_HYBRID(topdown-bad-spec, td_bad_spec_adl, "event=0x73,umask=0x0;event=0x00,umask=0x81", hybrid_big_small);
+EVENT_ATTR_STR_HYBRID(topdown-fe-bound, td_fe_bound_adl, "event=0x71,umask=0x0;event=0x00,umask=0x82", hybrid_big_small);
+EVENT_ATTR_STR_HYBRID(topdown-be-bound, td_be_bound_adl, "event=0x74,umask=0x0;event=0x00,umask=0x83", hybrid_big_small);
+EVENT_ATTR_STR_HYBRID(topdown-heavy-ops, td_heavy_ops_adl, "event=0x00,umask=0x84", hybrid_big);
+EVENT_ATTR_STR_HYBRID(topdown-br-mispredict, td_br_mis_adl, "event=0x00,umask=0x85", hybrid_big);
+EVENT_ATTR_STR_HYBRID(topdown-fetch-lat, td_fetch_lat_adl, "event=0x00,umask=0x86", hybrid_big);
+EVENT_ATTR_STR_HYBRID(topdown-mem-bound, td_mem_bound_adl, "event=0x00,umask=0x87", hybrid_big);
+
+static struct attribute *adl_hybrid_events_attrs[] = {
+ EVENT_PTR(slots_adl),
+ EVENT_PTR(td_retiring_adl),
+ EVENT_PTR(td_bad_spec_adl),
+ EVENT_PTR(td_fe_bound_adl),
+ EVENT_PTR(td_be_bound_adl),
+ EVENT_PTR(td_heavy_ops_adl),
+ EVENT_PTR(td_br_mis_adl),
+ EVENT_PTR(td_fetch_lat_adl),
+ EVENT_PTR(td_mem_bound_adl),
+ NULL,
+};
+
+/* Must be in IDX order */
+EVENT_ATTR_STR_HYBRID(mem-loads, mem_ld_adl, "event=0xd0,umask=0x5,ldlat=3;event=0xcd,umask=0x1,ldlat=3", hybrid_big_small);
+EVENT_ATTR_STR_HYBRID(mem-stores, mem_st_adl, "event=0xd0,umask=0x6;event=0xcd,umask=0x2", hybrid_big_small);
+EVENT_ATTR_STR_HYBRID(mem-loads-aux, mem_ld_aux_adl, "event=0x03,umask=0x82", hybrid_big);
+
+static struct attribute *adl_hybrid_mem_attrs[] = {
+ EVENT_PTR(mem_ld_adl),
+ EVENT_PTR(mem_st_adl),
+ EVENT_PTR(mem_ld_aux_adl),
+ NULL,
+};
+
+static struct attribute *mtl_hybrid_mem_attrs[] = {
+ EVENT_PTR(mem_ld_adl),
+ EVENT_PTR(mem_st_adl),
+ NULL
+};
+
+EVENT_ATTR_STR_HYBRID(tx-start, tx_start_adl, "event=0xc9,umask=0x1", hybrid_big);
+EVENT_ATTR_STR_HYBRID(tx-commit, tx_commit_adl, "event=0xc9,umask=0x2", hybrid_big);
+EVENT_ATTR_STR_HYBRID(tx-abort, tx_abort_adl, "event=0xc9,umask=0x4", hybrid_big);
+EVENT_ATTR_STR_HYBRID(tx-conflict, tx_conflict_adl, "event=0x54,umask=0x1", hybrid_big);
+EVENT_ATTR_STR_HYBRID(cycles-t, cycles_t_adl, "event=0x3c,in_tx=1", hybrid_big);
+EVENT_ATTR_STR_HYBRID(cycles-ct, cycles_ct_adl, "event=0x3c,in_tx=1,in_tx_cp=1", hybrid_big);
+EVENT_ATTR_STR_HYBRID(tx-capacity-read, tx_capacity_read_adl, "event=0x54,umask=0x80", hybrid_big);
+EVENT_ATTR_STR_HYBRID(tx-capacity-write, tx_capacity_write_adl, "event=0x54,umask=0x2", hybrid_big);
+
+static struct attribute *adl_hybrid_tsx_attrs[] = {
+ EVENT_PTR(tx_start_adl),
+ EVENT_PTR(tx_abort_adl),
+ EVENT_PTR(tx_commit_adl),
+ EVENT_PTR(tx_capacity_read_adl),
+ EVENT_PTR(tx_capacity_write_adl),
+ EVENT_PTR(tx_conflict_adl),
+ EVENT_PTR(cycles_t_adl),
+ EVENT_PTR(cycles_ct_adl),
+ NULL,
+};
+
+FORMAT_ATTR_HYBRID(in_tx, hybrid_big);
+FORMAT_ATTR_HYBRID(in_tx_cp, hybrid_big);
+FORMAT_ATTR_HYBRID(offcore_rsp, hybrid_big_small);
+FORMAT_ATTR_HYBRID(ldlat, hybrid_big_small);
+FORMAT_ATTR_HYBRID(frontend, hybrid_big);
+
+#define ADL_HYBRID_RTM_FORMAT_ATTR \
+ FORMAT_HYBRID_PTR(in_tx), \
+ FORMAT_HYBRID_PTR(in_tx_cp)
+
+#define ADL_HYBRID_FORMAT_ATTR \
+ FORMAT_HYBRID_PTR(offcore_rsp), \
+ FORMAT_HYBRID_PTR(ldlat), \
+ FORMAT_HYBRID_PTR(frontend)
+
+static struct attribute *adl_hybrid_extra_attr_rtm[] = {
+ ADL_HYBRID_RTM_FORMAT_ATTR,
+ ADL_HYBRID_FORMAT_ATTR,
+ NULL
+};
+
+static struct attribute *adl_hybrid_extra_attr[] = {
+ ADL_HYBRID_FORMAT_ATTR,
+ NULL
+};
+
+PMU_FORMAT_ATTR_SHOW(snoop_rsp, "config1:0-63");
+FORMAT_ATTR_HYBRID(snoop_rsp, hybrid_small);
+
+static struct attribute *mtl_hybrid_extra_attr_rtm[] = {
+ ADL_HYBRID_RTM_FORMAT_ATTR,
+ ADL_HYBRID_FORMAT_ATTR,
+ FORMAT_HYBRID_PTR(snoop_rsp),
+ NULL
+};
+
+static struct attribute *mtl_hybrid_extra_attr[] = {
+ ADL_HYBRID_FORMAT_ATTR,
+ FORMAT_HYBRID_PTR(snoop_rsp),
+ NULL
+};
+
+static bool is_attr_for_this_pmu(struct kobject *kobj, struct attribute *attr)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct x86_hybrid_pmu *pmu =
+ container_of(dev_get_drvdata(dev), struct x86_hybrid_pmu, pmu);
+ struct perf_pmu_events_hybrid_attr *pmu_attr =
+ container_of(attr, struct perf_pmu_events_hybrid_attr, attr.attr);
+
+ return pmu->cpu_type & pmu_attr->pmu_type;
+}
+
+static umode_t hybrid_events_is_visible(struct kobject *kobj,
+ struct attribute *attr, int i)
+{
+ return is_attr_for_this_pmu(kobj, attr) ? attr->mode : 0;
+}
+
+static inline int hybrid_find_supported_cpu(struct x86_hybrid_pmu *pmu)
+{
+ int cpu = cpumask_first(&pmu->supported_cpus);
+
+ return (cpu >= nr_cpu_ids) ? -1 : cpu;
+}
+
+static umode_t hybrid_tsx_is_visible(struct kobject *kobj,
+ struct attribute *attr, int i)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct x86_hybrid_pmu *pmu =
+ container_of(dev_get_drvdata(dev), struct x86_hybrid_pmu, pmu);
+ int cpu = hybrid_find_supported_cpu(pmu);
+
+ return (cpu >= 0) && is_attr_for_this_pmu(kobj, attr) && cpu_has(&cpu_data(cpu), X86_FEATURE_RTM) ? attr->mode : 0;
+}
+
+static umode_t hybrid_format_is_visible(struct kobject *kobj,
+ struct attribute *attr, int i)
+{
+ struct device *dev = kobj_to_dev(kobj);
+ struct x86_hybrid_pmu *pmu =
+ container_of(dev_get_drvdata(dev), struct x86_hybrid_pmu, pmu);
+ struct perf_pmu_format_hybrid_attr *pmu_attr =
+ container_of(attr, struct perf_pmu_format_hybrid_attr, attr.attr);
+ int cpu = hybrid_find_supported_cpu(pmu);
+
+ return (cpu >= 0) && (pmu->cpu_type & pmu_attr->pmu_type) ? attr->mode : 0;
+}
+
+static struct attribute_group hybrid_group_events_td = {
+ .name = "events",
+ .is_visible = hybrid_events_is_visible,
+};
+
+static struct attribute_group hybrid_group_events_mem = {
+ .name = "events",
+ .is_visible = hybrid_events_is_visible,
+};
+
+static struct attribute_group hybrid_group_events_tsx = {
+ .name = "events",
+ .is_visible = hybrid_tsx_is_visible,
+};
+
+static struct attribute_group hybrid_group_format_extra = {
+ .name = "format",
+ .is_visible = hybrid_format_is_visible,
+};
+
+static ssize_t intel_hybrid_get_attr_cpus(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct x86_hybrid_pmu *pmu =
+ container_of(dev_get_drvdata(dev), struct x86_hybrid_pmu, pmu);
+
+ return cpumap_print_to_pagebuf(true, buf, &pmu->supported_cpus);
+}
+
+static DEVICE_ATTR(cpus, S_IRUGO, intel_hybrid_get_attr_cpus, NULL);
+static struct attribute *intel_hybrid_cpus_attrs[] = {
+ &dev_attr_cpus.attr,
+ NULL,
+};
+
+static struct attribute_group hybrid_group_cpus = {
+ .attrs = intel_hybrid_cpus_attrs,
+};
+
+static const struct attribute_group *hybrid_attr_update[] = {
+ &hybrid_group_events_td,
+ &hybrid_group_events_mem,
+ &hybrid_group_events_tsx,
+ &group_caps_gen,
+ &group_caps_lbr,
+ &hybrid_group_format_extra,
+ &group_default,
+ &hybrid_group_cpus,
+ NULL,
+};
+
+static struct attribute *empty_attrs;
+
+static void intel_pmu_check_num_counters(int *num_counters,
+ int *num_counters_fixed,
+ u64 *intel_ctrl, u64 fixed_mask)
+{
+ if (*num_counters > INTEL_PMC_MAX_GENERIC) {
+ WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!",
+ *num_counters, INTEL_PMC_MAX_GENERIC);
+ *num_counters = INTEL_PMC_MAX_GENERIC;
+ }
+ *intel_ctrl = (1ULL << *num_counters) - 1;
+
+ if (*num_counters_fixed > INTEL_PMC_MAX_FIXED) {
+ WARN(1, KERN_ERR "hw perf events fixed %d > max(%d), clipping!",
+ *num_counters_fixed, INTEL_PMC_MAX_FIXED);
+ *num_counters_fixed = INTEL_PMC_MAX_FIXED;
+ }
+
+ *intel_ctrl |= fixed_mask << INTEL_PMC_IDX_FIXED;
+}
+
+static void intel_pmu_check_event_constraints(struct event_constraint *event_constraints,
+ int num_counters,
+ int num_counters_fixed,
+ u64 intel_ctrl)
+{
+ struct event_constraint *c;
+
+ if (!event_constraints)
+ return;
+
+ /*
+ * event on fixed counter2 (REF_CYCLES) only works on this
+ * counter, so do not extend mask to generic counters
+ */
+ for_each_event_constraint(c, event_constraints) {
+ /*
+ * Don't extend the topdown slots and metrics
+ * events to the generic counters.
+ */
+ if (c->idxmsk64 & INTEL_PMC_MSK_TOPDOWN) {
+ /*
+ * Disable topdown slots and metrics events,
+ * if slots event is not in CPUID.
+ */
+ if (!(INTEL_PMC_MSK_FIXED_SLOTS & intel_ctrl))
+ c->idxmsk64 = 0;
+ c->weight = hweight64(c->idxmsk64);
+ continue;
+ }
+
+ if (c->cmask == FIXED_EVENT_FLAGS) {
+ /* Disabled fixed counters which are not in CPUID */
+ c->idxmsk64 &= intel_ctrl;
+
+ /*
+ * Don't extend the pseudo-encoding to the
+ * generic counters
+ */
+ if (!use_fixed_pseudo_encoding(c->code))
+ c->idxmsk64 |= (1ULL << num_counters) - 1;
+ }
+ c->idxmsk64 &=
+ ~(~0ULL << (INTEL_PMC_IDX_FIXED + num_counters_fixed));
+ c->weight = hweight64(c->idxmsk64);
+ }
+}
+
+static void intel_pmu_check_extra_regs(struct extra_reg *extra_regs)
+{
+ struct extra_reg *er;
+
+ /*
+ * Access extra MSR may cause #GP under certain circumstances.
+ * E.g. KVM doesn't support offcore event
+ * Check all extra_regs here.
+ */
+ if (!extra_regs)
+ return;
+
+ for (er = extra_regs; er->msr; er++) {
+ er->extra_msr_access = check_msr(er->msr, 0x11UL);
+ /* Disable LBR select mapping */
+ if ((er->idx == EXTRA_REG_LBR) && !er->extra_msr_access)
+ x86_pmu.lbr_sel_map = NULL;
+ }
+}
+
+static void intel_pmu_check_hybrid_pmus(u64 fixed_mask)
+{
+ struct x86_hybrid_pmu *pmu;
+ int i;
+
+ for (i = 0; i < x86_pmu.num_hybrid_pmus; i++) {
+ pmu = &x86_pmu.hybrid_pmu[i];
+
+ intel_pmu_check_num_counters(&pmu->num_counters,
+ &pmu->num_counters_fixed,
+ &pmu->intel_ctrl,
+ fixed_mask);
+
+ if (pmu->intel_cap.perf_metrics) {
+ pmu->intel_ctrl |= 1ULL << GLOBAL_CTRL_EN_PERF_METRICS;
+ pmu->intel_ctrl |= INTEL_PMC_MSK_FIXED_SLOTS;
+ }
+
+ if (pmu->intel_cap.pebs_output_pt_available)
+ pmu->pmu.capabilities |= PERF_PMU_CAP_AUX_OUTPUT;
+
+ intel_pmu_check_event_constraints(pmu->event_constraints,
+ pmu->num_counters,
+ pmu->num_counters_fixed,
+ pmu->intel_ctrl);
+
+ intel_pmu_check_extra_regs(pmu->extra_regs);
+ }
+}
+
+static __always_inline bool is_mtl(u8 x86_model)
+{
+ return (x86_model == INTEL_FAM6_METEORLAKE) ||
+ (x86_model == INTEL_FAM6_METEORLAKE_L);
+}
+
+__init int intel_pmu_init(void)
+{
+ struct attribute **extra_skl_attr = &empty_attrs;
+ struct attribute **extra_attr = &empty_attrs;
+ struct attribute **td_attr = &empty_attrs;
+ struct attribute **mem_attr = &empty_attrs;
+ struct attribute **tsx_attr = &empty_attrs;
+ union cpuid10_edx edx;
+ union cpuid10_eax eax;
+ union cpuid10_ebx ebx;
+ unsigned int fixed_mask;
+ bool pmem = false;
+ int version, i;
+ char *name;
+ struct x86_hybrid_pmu *pmu;
+
+ if (!cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) {
+ switch (boot_cpu_data.x86) {
+ case 0x6:
+ return p6_pmu_init();
+ case 0xb:
+ return knc_pmu_init();
+ case 0xf:
+ return p4_pmu_init();
+ }
+ return -ENODEV;
+ }
+
+ /*
+ * Check whether the Architectural PerfMon supports
+ * Branch Misses Retired hw_event or not.
+ */
+ cpuid(10, &eax.full, &ebx.full, &fixed_mask, &edx.full);
+ if (eax.split.mask_length < ARCH_PERFMON_EVENTS_COUNT)
+ return -ENODEV;
+
+ version = eax.split.version_id;
+ if (version < 2)
+ x86_pmu = core_pmu;
+ else
+ x86_pmu = intel_pmu;
+
+ x86_pmu.version = version;
+ x86_pmu.num_counters = eax.split.num_counters;
+ x86_pmu.cntval_bits = eax.split.bit_width;
+ x86_pmu.cntval_mask = (1ULL << eax.split.bit_width) - 1;
+
+ x86_pmu.events_maskl = ebx.full;
+ x86_pmu.events_mask_len = eax.split.mask_length;
+
+ x86_pmu.max_pebs_events = min_t(unsigned, MAX_PEBS_EVENTS, x86_pmu.num_counters);
+ x86_pmu.pebs_capable = PEBS_COUNTER_MASK;
+
+ /*
+ * Quirk: v2 perfmon does not report fixed-purpose events, so
+ * assume at least 3 events, when not running in a hypervisor:
+ */
+ if (version > 1 && version < 5) {
+ int assume = 3 * !boot_cpu_has(X86_FEATURE_HYPERVISOR);
+
+ x86_pmu.num_counters_fixed =
+ max((int)edx.split.num_counters_fixed, assume);
+
+ fixed_mask = (1L << x86_pmu.num_counters_fixed) - 1;
+ } else if (version >= 5)
+ x86_pmu.num_counters_fixed = fls(fixed_mask);
+
+ if (boot_cpu_has(X86_FEATURE_PDCM)) {
+ u64 capabilities;
+
+ rdmsrl(MSR_IA32_PERF_CAPABILITIES, capabilities);
+ x86_pmu.intel_cap.capabilities = capabilities;
+ }
+
+ if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_32) {
+ x86_pmu.lbr_reset = intel_pmu_lbr_reset_32;
+ x86_pmu.lbr_read = intel_pmu_lbr_read_32;
+ }
+
+ if (boot_cpu_has(X86_FEATURE_ARCH_LBR))
+ intel_pmu_arch_lbr_init();
+
+ intel_ds_init();
+
+ x86_add_quirk(intel_arch_events_quirk); /* Install first, so it runs last */
+
+ if (version >= 5) {
+ x86_pmu.intel_cap.anythread_deprecated = edx.split.anythread_deprecated;
+ if (x86_pmu.intel_cap.anythread_deprecated)
+ pr_cont(" AnyThread deprecated, ");
+ }
+
+ /*
+ * Install the hw-cache-events table:
+ */
+ switch (boot_cpu_data.x86_model) {
+ case INTEL_FAM6_CORE_YONAH:
+ pr_cont("Core events, ");
+ name = "core";
+ break;
+
+ case INTEL_FAM6_CORE2_MEROM:
+ x86_add_quirk(intel_clovertown_quirk);
+ fallthrough;
+
+ case INTEL_FAM6_CORE2_MEROM_L:
+ case INTEL_FAM6_CORE2_PENRYN:
+ case INTEL_FAM6_CORE2_DUNNINGTON:
+ memcpy(hw_cache_event_ids, core2_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+
+ intel_pmu_lbr_init_core();
+
+ x86_pmu.event_constraints = intel_core2_event_constraints;
+ x86_pmu.pebs_constraints = intel_core2_pebs_event_constraints;
+ pr_cont("Core2 events, ");
+ name = "core2";
+ break;
+
+ case INTEL_FAM6_NEHALEM:
+ case INTEL_FAM6_NEHALEM_EP:
+ case INTEL_FAM6_NEHALEM_EX:
+ memcpy(hw_cache_event_ids, nehalem_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, nehalem_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_nhm();
+
+ x86_pmu.event_constraints = intel_nehalem_event_constraints;
+ x86_pmu.pebs_constraints = intel_nehalem_pebs_event_constraints;
+ x86_pmu.enable_all = intel_pmu_nhm_enable_all;
+ x86_pmu.extra_regs = intel_nehalem_extra_regs;
+ x86_pmu.limit_period = nhm_limit_period;
+
+ mem_attr = nhm_mem_events_attrs;
+
+ /* UOPS_ISSUED.STALLED_CYCLES */
+ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] =
+ X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1);
+ /* UOPS_EXECUTED.CORE_ACTIVE_CYCLES,c=1,i=1 */
+ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] =
+ X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1);
+
+ intel_pmu_pebs_data_source_nhm();
+ x86_add_quirk(intel_nehalem_quirk);
+ x86_pmu.pebs_no_tlb = 1;
+ extra_attr = nhm_format_attr;
+
+ pr_cont("Nehalem events, ");
+ name = "nehalem";
+ break;
+
+ case INTEL_FAM6_ATOM_BONNELL:
+ case INTEL_FAM6_ATOM_BONNELL_MID:
+ case INTEL_FAM6_ATOM_SALTWELL:
+ case INTEL_FAM6_ATOM_SALTWELL_MID:
+ case INTEL_FAM6_ATOM_SALTWELL_TABLET:
+ memcpy(hw_cache_event_ids, atom_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+
+ intel_pmu_lbr_init_atom();
+
+ x86_pmu.event_constraints = intel_gen_event_constraints;
+ x86_pmu.pebs_constraints = intel_atom_pebs_event_constraints;
+ x86_pmu.pebs_aliases = intel_pebs_aliases_core2;
+ pr_cont("Atom events, ");
+ name = "bonnell";
+ break;
+
+ case INTEL_FAM6_ATOM_SILVERMONT:
+ case INTEL_FAM6_ATOM_SILVERMONT_D:
+ case INTEL_FAM6_ATOM_SILVERMONT_MID:
+ case INTEL_FAM6_ATOM_AIRMONT:
+ case INTEL_FAM6_ATOM_AIRMONT_MID:
+ memcpy(hw_cache_event_ids, slm_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, slm_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_slm();
+
+ x86_pmu.event_constraints = intel_slm_event_constraints;
+ x86_pmu.pebs_constraints = intel_slm_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_slm_extra_regs;
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ td_attr = slm_events_attrs;
+ extra_attr = slm_format_attr;
+ pr_cont("Silvermont events, ");
+ name = "silvermont";
+ break;
+
+ case INTEL_FAM6_ATOM_GOLDMONT:
+ case INTEL_FAM6_ATOM_GOLDMONT_D:
+ memcpy(hw_cache_event_ids, glm_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, glm_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_skl();
+
+ x86_pmu.event_constraints = intel_slm_event_constraints;
+ x86_pmu.pebs_constraints = intel_glm_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_glm_extra_regs;
+ /*
+ * It's recommended to use CPU_CLK_UNHALTED.CORE_P + NPEBS
+ * for precise cycles.
+ * :pp is identical to :ppp
+ */
+ x86_pmu.pebs_aliases = NULL;
+ x86_pmu.pebs_prec_dist = true;
+ x86_pmu.lbr_pt_coexist = true;
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ td_attr = glm_events_attrs;
+ extra_attr = slm_format_attr;
+ pr_cont("Goldmont events, ");
+ name = "goldmont";
+ break;
+
+ case INTEL_FAM6_ATOM_GOLDMONT_PLUS:
+ memcpy(hw_cache_event_ids, glp_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, glp_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_skl();
+
+ x86_pmu.event_constraints = intel_slm_event_constraints;
+ x86_pmu.extra_regs = intel_glm_extra_regs;
+ /*
+ * It's recommended to use CPU_CLK_UNHALTED.CORE_P + NPEBS
+ * for precise cycles.
+ */
+ x86_pmu.pebs_aliases = NULL;
+ x86_pmu.pebs_prec_dist = true;
+ x86_pmu.lbr_pt_coexist = true;
+ x86_pmu.pebs_capable = ~0ULL;
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_PEBS_ALL;
+ x86_pmu.get_event_constraints = glp_get_event_constraints;
+ td_attr = glm_events_attrs;
+ /* Goldmont Plus has 4-wide pipeline */
+ event_attr_td_total_slots_scale_glm.event_str = "4";
+ extra_attr = slm_format_attr;
+ pr_cont("Goldmont plus events, ");
+ name = "goldmont_plus";
+ break;
+
+ case INTEL_FAM6_ATOM_TREMONT_D:
+ case INTEL_FAM6_ATOM_TREMONT:
+ case INTEL_FAM6_ATOM_TREMONT_L:
+ x86_pmu.late_ack = true;
+ memcpy(hw_cache_event_ids, glp_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, tnt_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+ hw_cache_event_ids[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = -1;
+
+ intel_pmu_lbr_init_skl();
+
+ x86_pmu.event_constraints = intel_slm_event_constraints;
+ x86_pmu.extra_regs = intel_tnt_extra_regs;
+ /*
+ * It's recommended to use CPU_CLK_UNHALTED.CORE_P + NPEBS
+ * for precise cycles.
+ */
+ x86_pmu.pebs_aliases = NULL;
+ x86_pmu.pebs_prec_dist = true;
+ x86_pmu.lbr_pt_coexist = true;
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.get_event_constraints = tnt_get_event_constraints;
+ td_attr = tnt_events_attrs;
+ extra_attr = slm_format_attr;
+ pr_cont("Tremont events, ");
+ name = "Tremont";
+ break;
+
+ case INTEL_FAM6_ALDERLAKE_N:
+ x86_pmu.mid_ack = true;
+ memcpy(hw_cache_event_ids, glp_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, tnt_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+ hw_cache_event_ids[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = -1;
+
+ x86_pmu.event_constraints = intel_slm_event_constraints;
+ x86_pmu.pebs_constraints = intel_grt_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_grt_extra_regs;
+
+ x86_pmu.pebs_aliases = NULL;
+ x86_pmu.pebs_prec_dist = true;
+ x86_pmu.pebs_block = true;
+ x86_pmu.lbr_pt_coexist = true;
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_INSTR_LATENCY;
+
+ intel_pmu_pebs_data_source_grt();
+ x86_pmu.pebs_latency_data = adl_latency_data_small;
+ x86_pmu.get_event_constraints = tnt_get_event_constraints;
+ x86_pmu.limit_period = spr_limit_period;
+ td_attr = tnt_events_attrs;
+ mem_attr = grt_mem_attrs;
+ extra_attr = nhm_format_attr;
+ pr_cont("Gracemont events, ");
+ name = "gracemont";
+ break;
+
+ case INTEL_FAM6_WESTMERE:
+ case INTEL_FAM6_WESTMERE_EP:
+ case INTEL_FAM6_WESTMERE_EX:
+ memcpy(hw_cache_event_ids, westmere_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, nehalem_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_nhm();
+
+ x86_pmu.event_constraints = intel_westmere_event_constraints;
+ x86_pmu.enable_all = intel_pmu_nhm_enable_all;
+ x86_pmu.pebs_constraints = intel_westmere_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_westmere_extra_regs;
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+
+ mem_attr = nhm_mem_events_attrs;
+
+ /* UOPS_ISSUED.STALLED_CYCLES */
+ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] =
+ X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1);
+ /* UOPS_EXECUTED.CORE_ACTIVE_CYCLES,c=1,i=1 */
+ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] =
+ X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1);
+
+ intel_pmu_pebs_data_source_nhm();
+ extra_attr = nhm_format_attr;
+ pr_cont("Westmere events, ");
+ name = "westmere";
+ break;
+
+ case INTEL_FAM6_SANDYBRIDGE:
+ case INTEL_FAM6_SANDYBRIDGE_X:
+ x86_add_quirk(intel_sandybridge_quirk);
+ x86_add_quirk(intel_ht_bug);
+ memcpy(hw_cache_event_ids, snb_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_snb();
+
+ x86_pmu.event_constraints = intel_snb_event_constraints;
+ x86_pmu.pebs_constraints = intel_snb_pebs_event_constraints;
+ x86_pmu.pebs_aliases = intel_pebs_aliases_snb;
+ if (boot_cpu_data.x86_model == INTEL_FAM6_SANDYBRIDGE_X)
+ x86_pmu.extra_regs = intel_snbep_extra_regs;
+ else
+ x86_pmu.extra_regs = intel_snb_extra_regs;
+
+
+ /* all extra regs are per-cpu when HT is on */
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_NO_HT_SHARING;
+
+ td_attr = snb_events_attrs;
+ mem_attr = snb_mem_events_attrs;
+
+ /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */
+ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] =
+ X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1);
+ /* UOPS_DISPATCHED.THREAD,c=1,i=1 to count stall cycles*/
+ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] =
+ X86_CONFIG(.event=0xb1, .umask=0x01, .inv=1, .cmask=1);
+
+ extra_attr = nhm_format_attr;
+
+ pr_cont("SandyBridge events, ");
+ name = "sandybridge";
+ break;
+
+ case INTEL_FAM6_IVYBRIDGE:
+ case INTEL_FAM6_IVYBRIDGE_X:
+ x86_add_quirk(intel_ht_bug);
+ memcpy(hw_cache_event_ids, snb_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+ /* dTLB-load-misses on IVB is different than SNB */
+ hw_cache_event_ids[C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = 0x8108; /* DTLB_LOAD_MISSES.DEMAND_LD_MISS_CAUSES_A_WALK */
+
+ memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs,
+ sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_snb();
+
+ x86_pmu.event_constraints = intel_ivb_event_constraints;
+ x86_pmu.pebs_constraints = intel_ivb_pebs_event_constraints;
+ x86_pmu.pebs_aliases = intel_pebs_aliases_ivb;
+ x86_pmu.pebs_prec_dist = true;
+ if (boot_cpu_data.x86_model == INTEL_FAM6_IVYBRIDGE_X)
+ x86_pmu.extra_regs = intel_snbep_extra_regs;
+ else
+ x86_pmu.extra_regs = intel_snb_extra_regs;
+ /* all extra regs are per-cpu when HT is on */
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_NO_HT_SHARING;
+
+ td_attr = snb_events_attrs;
+ mem_attr = snb_mem_events_attrs;
+
+ /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */
+ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] =
+ X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1);
+
+ extra_attr = nhm_format_attr;
+
+ pr_cont("IvyBridge events, ");
+ name = "ivybridge";
+ break;
+
+
+ case INTEL_FAM6_HASWELL:
+ case INTEL_FAM6_HASWELL_X:
+ case INTEL_FAM6_HASWELL_L:
+ case INTEL_FAM6_HASWELL_G:
+ x86_add_quirk(intel_ht_bug);
+ x86_add_quirk(intel_pebs_isolation_quirk);
+ x86_pmu.late_ack = true;
+ memcpy(hw_cache_event_ids, hsw_hw_cache_event_ids, sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, hsw_hw_cache_extra_regs, sizeof(hw_cache_extra_regs));
+
+ intel_pmu_lbr_init_hsw();
+
+ x86_pmu.event_constraints = intel_hsw_event_constraints;
+ x86_pmu.pebs_constraints = intel_hsw_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_snbep_extra_regs;
+ x86_pmu.pebs_aliases = intel_pebs_aliases_ivb;
+ x86_pmu.pebs_prec_dist = true;
+ /* all extra regs are per-cpu when HT is on */
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_NO_HT_SHARING;
+
+ x86_pmu.hw_config = hsw_hw_config;
+ x86_pmu.get_event_constraints = hsw_get_event_constraints;
+ x86_pmu.lbr_double_abort = true;
+ extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
+ hsw_format_attr : nhm_format_attr;
+ td_attr = hsw_events_attrs;
+ mem_attr = hsw_mem_events_attrs;
+ tsx_attr = hsw_tsx_events_attrs;
+ pr_cont("Haswell events, ");
+ name = "haswell";
+ break;
+
+ case INTEL_FAM6_BROADWELL:
+ case INTEL_FAM6_BROADWELL_D:
+ case INTEL_FAM6_BROADWELL_G:
+ case INTEL_FAM6_BROADWELL_X:
+ x86_add_quirk(intel_pebs_isolation_quirk);
+ x86_pmu.late_ack = true;
+ memcpy(hw_cache_event_ids, hsw_hw_cache_event_ids, sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, hsw_hw_cache_extra_regs, sizeof(hw_cache_extra_regs));
+
+ /* L3_MISS_LOCAL_DRAM is BIT(26) in Broadwell */
+ hw_cache_extra_regs[C(LL)][C(OP_READ)][C(RESULT_MISS)] = HSW_DEMAND_READ |
+ BDW_L3_MISS|HSW_SNOOP_DRAM;
+ hw_cache_extra_regs[C(LL)][C(OP_WRITE)][C(RESULT_MISS)] = HSW_DEMAND_WRITE|BDW_L3_MISS|
+ HSW_SNOOP_DRAM;
+ hw_cache_extra_regs[C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = HSW_DEMAND_READ|
+ BDW_L3_MISS_LOCAL|HSW_SNOOP_DRAM;
+ hw_cache_extra_regs[C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = HSW_DEMAND_WRITE|
+ BDW_L3_MISS_LOCAL|HSW_SNOOP_DRAM;
+
+ intel_pmu_lbr_init_hsw();
+
+ x86_pmu.event_constraints = intel_bdw_event_constraints;
+ x86_pmu.pebs_constraints = intel_bdw_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_snbep_extra_regs;
+ x86_pmu.pebs_aliases = intel_pebs_aliases_ivb;
+ x86_pmu.pebs_prec_dist = true;
+ /* all extra regs are per-cpu when HT is on */
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_NO_HT_SHARING;
+
+ x86_pmu.hw_config = hsw_hw_config;
+ x86_pmu.get_event_constraints = hsw_get_event_constraints;
+ x86_pmu.limit_period = bdw_limit_period;
+ extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
+ hsw_format_attr : nhm_format_attr;
+ td_attr = hsw_events_attrs;
+ mem_attr = hsw_mem_events_attrs;
+ tsx_attr = hsw_tsx_events_attrs;
+ pr_cont("Broadwell events, ");
+ name = "broadwell";
+ break;
+
+ case INTEL_FAM6_XEON_PHI_KNL:
+ case INTEL_FAM6_XEON_PHI_KNM:
+ memcpy(hw_cache_event_ids,
+ slm_hw_cache_event_ids, sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs,
+ knl_hw_cache_extra_regs, sizeof(hw_cache_extra_regs));
+ intel_pmu_lbr_init_knl();
+
+ x86_pmu.event_constraints = intel_slm_event_constraints;
+ x86_pmu.pebs_constraints = intel_slm_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_knl_extra_regs;
+
+ /* all extra regs are per-cpu when HT is on */
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_NO_HT_SHARING;
+ extra_attr = slm_format_attr;
+ pr_cont("Knights Landing/Mill events, ");
+ name = "knights-landing";
+ break;
+
+ case INTEL_FAM6_SKYLAKE_X:
+ pmem = true;
+ fallthrough;
+ case INTEL_FAM6_SKYLAKE_L:
+ case INTEL_FAM6_SKYLAKE:
+ case INTEL_FAM6_KABYLAKE_L:
+ case INTEL_FAM6_KABYLAKE:
+ case INTEL_FAM6_COMETLAKE_L:
+ case INTEL_FAM6_COMETLAKE:
+ x86_add_quirk(intel_pebs_isolation_quirk);
+ x86_pmu.late_ack = true;
+ memcpy(hw_cache_event_ids, skl_hw_cache_event_ids, sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, skl_hw_cache_extra_regs, sizeof(hw_cache_extra_regs));
+ intel_pmu_lbr_init_skl();
+
+ /* INT_MISC.RECOVERY_CYCLES has umask 1 in Skylake */
+ event_attr_td_recovery_bubbles.event_str_noht =
+ "event=0xd,umask=0x1,cmask=1";
+ event_attr_td_recovery_bubbles.event_str_ht =
+ "event=0xd,umask=0x1,cmask=1,any=1";
+
+ x86_pmu.event_constraints = intel_skl_event_constraints;
+ x86_pmu.pebs_constraints = intel_skl_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_skl_extra_regs;
+ x86_pmu.pebs_aliases = intel_pebs_aliases_skl;
+ x86_pmu.pebs_prec_dist = true;
+ /* all extra regs are per-cpu when HT is on */
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_NO_HT_SHARING;
+
+ x86_pmu.hw_config = hsw_hw_config;
+ x86_pmu.get_event_constraints = hsw_get_event_constraints;
+ extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
+ hsw_format_attr : nhm_format_attr;
+ extra_skl_attr = skl_format_attr;
+ td_attr = hsw_events_attrs;
+ mem_attr = hsw_mem_events_attrs;
+ tsx_attr = hsw_tsx_events_attrs;
+ intel_pmu_pebs_data_source_skl(pmem);
+
+ /*
+ * Processors with CPUID.RTM_ALWAYS_ABORT have TSX deprecated by default.
+ * TSX force abort hooks are not required on these systems. Only deploy
+ * workaround when microcode has not enabled X86_FEATURE_RTM_ALWAYS_ABORT.
+ */
+ if (boot_cpu_has(X86_FEATURE_TSX_FORCE_ABORT) &&
+ !boot_cpu_has(X86_FEATURE_RTM_ALWAYS_ABORT)) {
+ x86_pmu.flags |= PMU_FL_TFA;
+ x86_pmu.get_event_constraints = tfa_get_event_constraints;
+ x86_pmu.enable_all = intel_tfa_pmu_enable_all;
+ x86_pmu.commit_scheduling = intel_tfa_commit_scheduling;
+ }
+
+ pr_cont("Skylake events, ");
+ name = "skylake";
+ break;
+
+ case INTEL_FAM6_ICELAKE_X:
+ case INTEL_FAM6_ICELAKE_D:
+ x86_pmu.pebs_ept = 1;
+ pmem = true;
+ fallthrough;
+ case INTEL_FAM6_ICELAKE_L:
+ case INTEL_FAM6_ICELAKE:
+ case INTEL_FAM6_TIGERLAKE_L:
+ case INTEL_FAM6_TIGERLAKE:
+ case INTEL_FAM6_ROCKETLAKE:
+ x86_pmu.late_ack = true;
+ memcpy(hw_cache_event_ids, skl_hw_cache_event_ids, sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, skl_hw_cache_extra_regs, sizeof(hw_cache_extra_regs));
+ hw_cache_event_ids[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = -1;
+ intel_pmu_lbr_init_skl();
+
+ x86_pmu.event_constraints = intel_icl_event_constraints;
+ x86_pmu.pebs_constraints = intel_icl_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_icl_extra_regs;
+ x86_pmu.pebs_aliases = NULL;
+ x86_pmu.pebs_prec_dist = true;
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_NO_HT_SHARING;
+
+ x86_pmu.hw_config = hsw_hw_config;
+ x86_pmu.get_event_constraints = icl_get_event_constraints;
+ extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
+ hsw_format_attr : nhm_format_attr;
+ extra_skl_attr = skl_format_attr;
+ mem_attr = icl_events_attrs;
+ td_attr = icl_td_events_attrs;
+ tsx_attr = icl_tsx_events_attrs;
+ x86_pmu.rtm_abort_event = X86_CONFIG(.event=0xc9, .umask=0x04);
+ x86_pmu.lbr_pt_coexist = true;
+ intel_pmu_pebs_data_source_skl(pmem);
+ x86_pmu.num_topdown_events = 4;
+ static_call_update(intel_pmu_update_topdown_event,
+ &icl_update_topdown_event);
+ static_call_update(intel_pmu_set_topdown_event_period,
+ &icl_set_topdown_event_period);
+ pr_cont("Icelake events, ");
+ name = "icelake";
+ break;
+
+ case INTEL_FAM6_SAPPHIRERAPIDS_X:
+ case INTEL_FAM6_EMERALDRAPIDS_X:
+ x86_pmu.flags |= PMU_FL_MEM_LOADS_AUX;
+ fallthrough;
+ case INTEL_FAM6_GRANITERAPIDS_X:
+ case INTEL_FAM6_GRANITERAPIDS_D:
+ pmem = true;
+ x86_pmu.late_ack = true;
+ memcpy(hw_cache_event_ids, spr_hw_cache_event_ids, sizeof(hw_cache_event_ids));
+ memcpy(hw_cache_extra_regs, spr_hw_cache_extra_regs, sizeof(hw_cache_extra_regs));
+
+ x86_pmu.event_constraints = intel_spr_event_constraints;
+ x86_pmu.pebs_constraints = intel_spr_pebs_event_constraints;
+ x86_pmu.extra_regs = intel_spr_extra_regs;
+ x86_pmu.limit_period = spr_limit_period;
+ x86_pmu.pebs_ept = 1;
+ x86_pmu.pebs_aliases = NULL;
+ x86_pmu.pebs_prec_dist = true;
+ x86_pmu.pebs_block = true;
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_NO_HT_SHARING;
+ x86_pmu.flags |= PMU_FL_INSTR_LATENCY;
+
+ x86_pmu.hw_config = hsw_hw_config;
+ x86_pmu.get_event_constraints = spr_get_event_constraints;
+ extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
+ hsw_format_attr : nhm_format_attr;
+ extra_skl_attr = skl_format_attr;
+ mem_attr = spr_events_attrs;
+ td_attr = spr_td_events_attrs;
+ tsx_attr = spr_tsx_events_attrs;
+ x86_pmu.rtm_abort_event = X86_CONFIG(.event=0xc9, .umask=0x04);
+ x86_pmu.lbr_pt_coexist = true;
+ intel_pmu_pebs_data_source_skl(pmem);
+ x86_pmu.num_topdown_events = 8;
+ static_call_update(intel_pmu_update_topdown_event,
+ &icl_update_topdown_event);
+ static_call_update(intel_pmu_set_topdown_event_period,
+ &icl_set_topdown_event_period);
+ pr_cont("Sapphire Rapids events, ");
+ name = "sapphire_rapids";
+ break;
+
+ case INTEL_FAM6_ALDERLAKE:
+ case INTEL_FAM6_ALDERLAKE_L:
+ case INTEL_FAM6_RAPTORLAKE:
+ case INTEL_FAM6_RAPTORLAKE_P:
+ case INTEL_FAM6_RAPTORLAKE_S:
+ case INTEL_FAM6_METEORLAKE:
+ case INTEL_FAM6_METEORLAKE_L:
+ /*
+ * Alder Lake has 2 types of CPU, core and atom.
+ *
+ * Initialize the common PerfMon capabilities here.
+ */
+ x86_pmu.hybrid_pmu = kcalloc(X86_HYBRID_NUM_PMUS,
+ sizeof(struct x86_hybrid_pmu),
+ GFP_KERNEL);
+ if (!x86_pmu.hybrid_pmu)
+ return -ENOMEM;
+ static_branch_enable(&perf_is_hybrid);
+ x86_pmu.num_hybrid_pmus = X86_HYBRID_NUM_PMUS;
+
+ x86_pmu.pebs_aliases = NULL;
+ x86_pmu.pebs_prec_dist = true;
+ x86_pmu.pebs_block = true;
+ x86_pmu.flags |= PMU_FL_HAS_RSP_1;
+ x86_pmu.flags |= PMU_FL_NO_HT_SHARING;
+ x86_pmu.flags |= PMU_FL_INSTR_LATENCY;
+ x86_pmu.lbr_pt_coexist = true;
+ x86_pmu.pebs_latency_data = adl_latency_data_small;
+ x86_pmu.num_topdown_events = 8;
+ static_call_update(intel_pmu_update_topdown_event,
+ &adl_update_topdown_event);
+ static_call_update(intel_pmu_set_topdown_event_period,
+ &adl_set_topdown_event_period);
+
+ x86_pmu.filter = intel_pmu_filter;
+ x86_pmu.get_event_constraints = adl_get_event_constraints;
+ x86_pmu.hw_config = adl_hw_config;
+ x86_pmu.limit_period = spr_limit_period;
+ x86_pmu.get_hybrid_cpu_type = adl_get_hybrid_cpu_type;
+ /*
+ * The rtm_abort_event is used to check whether to enable GPRs
+ * for the RTM abort event. Atom doesn't have the RTM abort
+ * event. There is no harmful to set it in the common
+ * x86_pmu.rtm_abort_event.
+ */
+ x86_pmu.rtm_abort_event = X86_CONFIG(.event=0xc9, .umask=0x04);
+
+ td_attr = adl_hybrid_events_attrs;
+ mem_attr = adl_hybrid_mem_attrs;
+ tsx_attr = adl_hybrid_tsx_attrs;
+ extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
+ adl_hybrid_extra_attr_rtm : adl_hybrid_extra_attr;
+
+ /* Initialize big core specific PerfMon capabilities.*/
+ pmu = &x86_pmu.hybrid_pmu[X86_HYBRID_PMU_CORE_IDX];
+ pmu->name = "cpu_core";
+ pmu->cpu_type = hybrid_big;
+ pmu->late_ack = true;
+ if (cpu_feature_enabled(X86_FEATURE_HYBRID_CPU)) {
+ pmu->num_counters = x86_pmu.num_counters + 2;
+ pmu->num_counters_fixed = x86_pmu.num_counters_fixed + 1;
+ } else {
+ pmu->num_counters = x86_pmu.num_counters;
+ pmu->num_counters_fixed = x86_pmu.num_counters_fixed;
+ }
+
+ /*
+ * Quirk: For some Alder Lake machine, when all E-cores are disabled in
+ * a BIOS, the leaf 0xA will enumerate all counters of P-cores. However,
+ * the X86_FEATURE_HYBRID_CPU is still set. The above codes will
+ * mistakenly add extra counters for P-cores. Correct the number of
+ * counters here.
+ */
+ if ((pmu->num_counters > 8) || (pmu->num_counters_fixed > 4)) {
+ pmu->num_counters = x86_pmu.num_counters;
+ pmu->num_counters_fixed = x86_pmu.num_counters_fixed;
+ }
+
+ pmu->max_pebs_events = min_t(unsigned, MAX_PEBS_EVENTS, pmu->num_counters);
+ pmu->unconstrained = (struct event_constraint)
+ __EVENT_CONSTRAINT(0, (1ULL << pmu->num_counters) - 1,
+ 0, pmu->num_counters, 0, 0);
+ pmu->intel_cap.capabilities = x86_pmu.intel_cap.capabilities;
+ pmu->intel_cap.perf_metrics = 1;
+ pmu->intel_cap.pebs_output_pt_available = 0;
+
+ memcpy(pmu->hw_cache_event_ids, spr_hw_cache_event_ids, sizeof(pmu->hw_cache_event_ids));
+ memcpy(pmu->hw_cache_extra_regs, spr_hw_cache_extra_regs, sizeof(pmu->hw_cache_extra_regs));
+ pmu->event_constraints = intel_spr_event_constraints;
+ pmu->pebs_constraints = intel_spr_pebs_event_constraints;
+ pmu->extra_regs = intel_spr_extra_regs;
+
+ /* Initialize Atom core specific PerfMon capabilities.*/
+ pmu = &x86_pmu.hybrid_pmu[X86_HYBRID_PMU_ATOM_IDX];
+ pmu->name = "cpu_atom";
+ pmu->cpu_type = hybrid_small;
+ pmu->mid_ack = true;
+ pmu->num_counters = x86_pmu.num_counters;
+ pmu->num_counters_fixed = x86_pmu.num_counters_fixed;
+ pmu->max_pebs_events = x86_pmu.max_pebs_events;
+ pmu->unconstrained = (struct event_constraint)
+ __EVENT_CONSTRAINT(0, (1ULL << pmu->num_counters) - 1,
+ 0, pmu->num_counters, 0, 0);
+ pmu->intel_cap.capabilities = x86_pmu.intel_cap.capabilities;
+ pmu->intel_cap.perf_metrics = 0;
+ pmu->intel_cap.pebs_output_pt_available = 1;
+
+ memcpy(pmu->hw_cache_event_ids, glp_hw_cache_event_ids, sizeof(pmu->hw_cache_event_ids));
+ memcpy(pmu->hw_cache_extra_regs, tnt_hw_cache_extra_regs, sizeof(pmu->hw_cache_extra_regs));
+ pmu->hw_cache_event_ids[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = -1;
+ pmu->event_constraints = intel_slm_event_constraints;
+ pmu->pebs_constraints = intel_grt_pebs_event_constraints;
+ pmu->extra_regs = intel_grt_extra_regs;
+ if (is_mtl(boot_cpu_data.x86_model)) {
+ x86_pmu.pebs_latency_data = mtl_latency_data_small;
+ extra_attr = boot_cpu_has(X86_FEATURE_RTM) ?
+ mtl_hybrid_extra_attr_rtm : mtl_hybrid_extra_attr;
+ mem_attr = mtl_hybrid_mem_attrs;
+ intel_pmu_pebs_data_source_mtl();
+ x86_pmu.get_event_constraints = mtl_get_event_constraints;
+ pmu->extra_regs = intel_cmt_extra_regs;
+ pr_cont("Meteorlake Hybrid events, ");
+ name = "meteorlake_hybrid";
+ } else {
+ x86_pmu.flags |= PMU_FL_MEM_LOADS_AUX;
+ intel_pmu_pebs_data_source_adl();
+ pr_cont("Alderlake Hybrid events, ");
+ name = "alderlake_hybrid";
+ }
+ break;
+
+ default:
+ switch (x86_pmu.version) {
+ case 1:
+ x86_pmu.event_constraints = intel_v1_event_constraints;
+ pr_cont("generic architected perfmon v1, ");
+ name = "generic_arch_v1";
+ break;
+ case 2:
+ case 3:
+ case 4:
+ /*
+ * default constraints for v2 and up
+ */
+ x86_pmu.event_constraints = intel_gen_event_constraints;
+ pr_cont("generic architected perfmon, ");
+ name = "generic_arch_v2+";
+ break;
+ default:
+ /*
+ * The default constraints for v5 and up can support up to
+ * 16 fixed counters. For the fixed counters 4 and later,
+ * the pseudo-encoding is applied.
+ * The constraints may be cut according to the CPUID enumeration
+ * by inserting the EVENT_CONSTRAINT_END.
+ */
+ if (x86_pmu.num_counters_fixed > INTEL_PMC_MAX_FIXED)
+ x86_pmu.num_counters_fixed = INTEL_PMC_MAX_FIXED;
+ intel_v5_gen_event_constraints[x86_pmu.num_counters_fixed].weight = -1;
+ x86_pmu.event_constraints = intel_v5_gen_event_constraints;
+ pr_cont("generic architected perfmon, ");
+ name = "generic_arch_v5+";
+ break;
+ }
+ }
+
+ snprintf(pmu_name_str, sizeof(pmu_name_str), "%s", name);
+
+ if (!is_hybrid()) {
+ group_events_td.attrs = td_attr;
+ group_events_mem.attrs = mem_attr;
+ group_events_tsx.attrs = tsx_attr;
+ group_format_extra.attrs = extra_attr;
+ group_format_extra_skl.attrs = extra_skl_attr;
+
+ x86_pmu.attr_update = attr_update;
+ } else {
+ hybrid_group_events_td.attrs = td_attr;
+ hybrid_group_events_mem.attrs = mem_attr;
+ hybrid_group_events_tsx.attrs = tsx_attr;
+ hybrid_group_format_extra.attrs = extra_attr;
+
+ x86_pmu.attr_update = hybrid_attr_update;
+ }
+
+ intel_pmu_check_num_counters(&x86_pmu.num_counters,
+ &x86_pmu.num_counters_fixed,
+ &x86_pmu.intel_ctrl,
+ (u64)fixed_mask);
+
+ /* AnyThread may be deprecated on arch perfmon v5 or later */
+ if (x86_pmu.intel_cap.anythread_deprecated)
+ x86_pmu.format_attrs = intel_arch_formats_attr;
+
+ intel_pmu_check_event_constraints(x86_pmu.event_constraints,
+ x86_pmu.num_counters,
+ x86_pmu.num_counters_fixed,
+ x86_pmu.intel_ctrl);
+ /*
+ * Access LBR MSR may cause #GP under certain circumstances.
+ * Check all LBR MSR here.
+ * Disable LBR access if any LBR MSRs can not be accessed.
+ */
+ if (x86_pmu.lbr_tos && !check_msr(x86_pmu.lbr_tos, 0x3UL))
+ x86_pmu.lbr_nr = 0;
+ for (i = 0; i < x86_pmu.lbr_nr; i++) {
+ if (!(check_msr(x86_pmu.lbr_from + i, 0xffffUL) &&
+ check_msr(x86_pmu.lbr_to + i, 0xffffUL)))
+ x86_pmu.lbr_nr = 0;
+ }
+
+ if (x86_pmu.lbr_nr) {
+ intel_pmu_lbr_init();
+
+ pr_cont("%d-deep LBR, ", x86_pmu.lbr_nr);
+
+ /* only support branch_stack snapshot for perfmon >= v2 */
+ if (x86_pmu.disable_all == intel_pmu_disable_all) {
+ if (boot_cpu_has(X86_FEATURE_ARCH_LBR)) {
+ static_call_update(perf_snapshot_branch_stack,
+ intel_pmu_snapshot_arch_branch_stack);
+ } else {
+ static_call_update(perf_snapshot_branch_stack,
+ intel_pmu_snapshot_branch_stack);
+ }
+ }
+ }
+
+ intel_pmu_check_extra_regs(x86_pmu.extra_regs);
+
+ /* Support full width counters using alternative MSR range */
+ if (x86_pmu.intel_cap.full_width_write) {
+ x86_pmu.max_period = x86_pmu.cntval_mask >> 1;
+ x86_pmu.perfctr = MSR_IA32_PMC0;
+ pr_cont("full-width counters, ");
+ }
+
+ if (!is_hybrid() && x86_pmu.intel_cap.perf_metrics)
+ x86_pmu.intel_ctrl |= 1ULL << GLOBAL_CTRL_EN_PERF_METRICS;
+
+ if (is_hybrid())
+ intel_pmu_check_hybrid_pmus((u64)fixed_mask);
+
+ if (x86_pmu.intel_cap.pebs_timing_info)
+ x86_pmu.flags |= PMU_FL_RETIRE_LATENCY;
+
+ intel_aux_output_init();
+
+ return 0;
+}
+
+/*
+ * HT bug: phase 2 init
+ * Called once we have valid topology information to check
+ * whether or not HT is enabled
+ * If HT is off, then we disable the workaround
+ */
+static __init int fixup_ht_bug(void)
+{
+ int c;
+ /*
+ * problem not present on this CPU model, nothing to do
+ */
+ if (!(x86_pmu.flags & PMU_FL_EXCL_ENABLED))
+ return 0;
+
+ if (topology_max_smt_threads() > 1) {
+ pr_info("PMU erratum BJ122, BV98, HSD29 worked around, HT is on\n");
+ return 0;
+ }
+
+ cpus_read_lock();
+
+ hardlockup_detector_perf_stop();
+
+ x86_pmu.flags &= ~(PMU_FL_EXCL_CNTRS | PMU_FL_EXCL_ENABLED);
+
+ x86_pmu.start_scheduling = NULL;
+ x86_pmu.commit_scheduling = NULL;
+ x86_pmu.stop_scheduling = NULL;
+
+ hardlockup_detector_perf_restart();
+
+ for_each_online_cpu(c)
+ free_excl_cntrs(&per_cpu(cpu_hw_events, c));
+
+ cpus_read_unlock();
+ pr_info("PMU erratum BJ122, BV98, HSD29 workaround disabled, HT off\n");
+ return 0;
+}
+subsys_initcall(fixup_ht_bug)
diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
new file mode 100644
index 000000000000..835862c548cc
--- /dev/null
+++ b/arch/x86/events/intel/cstate.c
@@ -0,0 +1,795 @@
+/*
+ * Support cstate residency counters
+ *
+ * Copyright (C) 2015, Intel Corp.
+ * Author: Kan Liang (kan.liang@intel.com)
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ */
+
+/*
+ * This file export cstate related free running (read-only) counters
+ * for perf. These counters may be use simultaneously by other tools,
+ * such as turbostat. However, it still make sense to implement them
+ * in perf. Because we can conveniently collect them together with
+ * other events, and allow to use them from tools without special MSR
+ * access code.
+ *
+ * The events only support system-wide mode counting. There is no
+ * sampling support because it is not supported by the hardware.
+ *
+ * According to counters' scope and category, two PMUs are registered
+ * with the perf_event core subsystem.
+ * - 'cstate_core': The counter is available for each physical core.
+ * The counters include CORE_C*_RESIDENCY.
+ * - 'cstate_pkg': The counter is available for each physical package.
+ * The counters include PKG_C*_RESIDENCY.
+ *
+ * All of these counters are specified in the IntelĀ® 64 and IA-32
+ * Architectures Software Developer.s Manual Vol3b.
+ *
+ * Model specific counters:
+ * MSR_CORE_C1_RES: CORE C1 Residency Counter
+ * perf code: 0x00
+ * Available model: SLM,AMT,GLM,CNL,ICX,TNT,ADL,RPL
+ * MTL
+ * Scope: Core (each processor core has a MSR)
+ * MSR_CORE_C3_RESIDENCY: CORE C3 Residency Counter
+ * perf code: 0x01
+ * Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,GLM,
+ * CNL,KBL,CML,TNT
+ * Scope: Core
+ * MSR_CORE_C6_RESIDENCY: CORE C6 Residency Counter
+ * perf code: 0x02
+ * Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW,
+ * SKL,KNL,GLM,CNL,KBL,CML,ICL,ICX,
+ * TGL,TNT,RKL,ADL,RPL,SPR,MTL
+ * Scope: Core
+ * MSR_CORE_C7_RESIDENCY: CORE C7 Residency Counter
+ * perf code: 0x03
+ * Available model: SNB,IVB,HSW,BDW,SKL,CNL,KBL,CML,
+ * ICL,TGL,RKL,ADL,RPL,MTL
+ * Scope: Core
+ * MSR_PKG_C2_RESIDENCY: Package C2 Residency Counter.
+ * perf code: 0x00
+ * Available model: SNB,IVB,HSW,BDW,SKL,KNL,GLM,CNL,
+ * KBL,CML,ICL,ICX,TGL,TNT,RKL,ADL,
+ * RPL,SPR,MTL
+ * Scope: Package (physical package)
+ * MSR_PKG_C3_RESIDENCY: Package C3 Residency Counter.
+ * perf code: 0x01
+ * Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,KNL,
+ * GLM,CNL,KBL,CML,ICL,TGL,TNT,RKL,
+ * ADL,RPL,MTL
+ * Scope: Package (physical package)
+ * MSR_PKG_C6_RESIDENCY: Package C6 Residency Counter.
+ * perf code: 0x02
+ * Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW,
+ * SKL,KNL,GLM,CNL,KBL,CML,ICL,ICX,
+ * TGL,TNT,RKL,ADL,RPL,SPR,MTL
+ * Scope: Package (physical package)
+ * MSR_PKG_C7_RESIDENCY: Package C7 Residency Counter.
+ * perf code: 0x03
+ * Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,CNL,
+ * KBL,CML,ICL,TGL,RKL,ADL,RPL,MTL
+ * Scope: Package (physical package)
+ * MSR_PKG_C8_RESIDENCY: Package C8 Residency Counter.
+ * perf code: 0x04
+ * Available model: HSW ULT,KBL,CNL,CML,ICL,TGL,RKL,
+ * ADL,RPL,MTL
+ * Scope: Package (physical package)
+ * MSR_PKG_C9_RESIDENCY: Package C9 Residency Counter.
+ * perf code: 0x05
+ * Available model: HSW ULT,KBL,CNL,CML,ICL,TGL,RKL,
+ * ADL,RPL,MTL
+ * Scope: Package (physical package)
+ * MSR_PKG_C10_RESIDENCY: Package C10 Residency Counter.
+ * perf code: 0x06
+ * Available model: HSW ULT,KBL,GLM,CNL,CML,ICL,TGL,
+ * TNT,RKL,ADL,RPL,MTL
+ * Scope: Package (physical package)
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/perf_event.h>
+#include <linux/nospec.h>
+#include <asm/cpu_device_id.h>
+#include <asm/intel-family.h>
+#include "../perf_event.h"
+#include "../probe.h"
+
+MODULE_LICENSE("GPL");
+
+#define DEFINE_CSTATE_FORMAT_ATTR(_var, _name, _format) \
+static ssize_t __cstate_##_var##_show(struct device *dev, \
+ struct device_attribute *attr, \
+ char *page) \
+{ \
+ BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE); \
+ return sprintf(page, _format "\n"); \
+} \
+static struct device_attribute format_attr_##_var = \
+ __ATTR(_name, 0444, __cstate_##_var##_show, NULL)
+
+static ssize_t cstate_get_attr_cpumask(struct device *dev,
+ struct device_attribute *attr,
+ char *buf);
+
+/* Model -> events mapping */
+struct cstate_model {
+ unsigned long core_events;
+ unsigned long pkg_events;
+ unsigned long quirks;
+};
+
+/* Quirk flags */
+#define SLM_PKG_C6_USE_C7_MSR (1UL << 0)
+#define KNL_CORE_C6_MSR (1UL << 1)
+
+struct perf_cstate_msr {
+ u64 msr;
+ struct perf_pmu_events_attr *attr;
+};
+
+
+/* cstate_core PMU */
+static struct pmu cstate_core_pmu;
+static bool has_cstate_core;
+
+enum perf_cstate_core_events {
+ PERF_CSTATE_CORE_C1_RES = 0,
+ PERF_CSTATE_CORE_C3_RES,
+ PERF_CSTATE_CORE_C6_RES,
+ PERF_CSTATE_CORE_C7_RES,
+
+ PERF_CSTATE_CORE_EVENT_MAX,
+};
+
+PMU_EVENT_ATTR_STRING(c1-residency, attr_cstate_core_c1, "event=0x00");
+PMU_EVENT_ATTR_STRING(c3-residency, attr_cstate_core_c3, "event=0x01");
+PMU_EVENT_ATTR_STRING(c6-residency, attr_cstate_core_c6, "event=0x02");
+PMU_EVENT_ATTR_STRING(c7-residency, attr_cstate_core_c7, "event=0x03");
+
+static unsigned long core_msr_mask;
+
+PMU_EVENT_GROUP(events, cstate_core_c1);
+PMU_EVENT_GROUP(events, cstate_core_c3);
+PMU_EVENT_GROUP(events, cstate_core_c6);
+PMU_EVENT_GROUP(events, cstate_core_c7);
+
+static bool test_msr(int idx, void *data)
+{
+ return test_bit(idx, (unsigned long *) data);
+}
+
+static struct perf_msr core_msr[] = {
+ [PERF_CSTATE_CORE_C1_RES] = { MSR_CORE_C1_RES, &group_cstate_core_c1, test_msr },
+ [PERF_CSTATE_CORE_C3_RES] = { MSR_CORE_C3_RESIDENCY, &group_cstate_core_c3, test_msr },
+ [PERF_CSTATE_CORE_C6_RES] = { MSR_CORE_C6_RESIDENCY, &group_cstate_core_c6, test_msr },
+ [PERF_CSTATE_CORE_C7_RES] = { MSR_CORE_C7_RESIDENCY, &group_cstate_core_c7, test_msr },
+};
+
+static struct attribute *attrs_empty[] = {
+ NULL,
+};
+
+/*
+ * There are no default events, but we need to create
+ * "events" group (with empty attrs) before updating
+ * it with detected events.
+ */
+static struct attribute_group core_events_attr_group = {
+ .name = "events",
+ .attrs = attrs_empty,
+};
+
+DEFINE_CSTATE_FORMAT_ATTR(core_event, event, "config:0-63");
+static struct attribute *core_format_attrs[] = {
+ &format_attr_core_event.attr,
+ NULL,
+};
+
+static struct attribute_group core_format_attr_group = {
+ .name = "format",
+ .attrs = core_format_attrs,
+};
+
+static cpumask_t cstate_core_cpu_mask;
+static DEVICE_ATTR(cpumask, S_IRUGO, cstate_get_attr_cpumask, NULL);
+
+static struct attribute *cstate_cpumask_attrs[] = {
+ &dev_attr_cpumask.attr,
+ NULL,
+};
+
+static struct attribute_group cpumask_attr_group = {
+ .attrs = cstate_cpumask_attrs,
+};
+
+static const struct attribute_group *core_attr_groups[] = {
+ &core_events_attr_group,
+ &core_format_attr_group,
+ &cpumask_attr_group,
+ NULL,
+};
+
+/* cstate_pkg PMU */
+static struct pmu cstate_pkg_pmu;
+static bool has_cstate_pkg;
+
+enum perf_cstate_pkg_events {
+ PERF_CSTATE_PKG_C2_RES = 0,
+ PERF_CSTATE_PKG_C3_RES,
+ PERF_CSTATE_PKG_C6_RES,
+ PERF_CSTATE_PKG_C7_RES,
+ PERF_CSTATE_PKG_C8_RES,
+ PERF_CSTATE_PKG_C9_RES,
+ PERF_CSTATE_PKG_C10_RES,
+
+ PERF_CSTATE_PKG_EVENT_MAX,
+};
+
+PMU_EVENT_ATTR_STRING(c2-residency, attr_cstate_pkg_c2, "event=0x00");
+PMU_EVENT_ATTR_STRING(c3-residency, attr_cstate_pkg_c3, "event=0x01");
+PMU_EVENT_ATTR_STRING(c6-residency, attr_cstate_pkg_c6, "event=0x02");
+PMU_EVENT_ATTR_STRING(c7-residency, attr_cstate_pkg_c7, "event=0x03");
+PMU_EVENT_ATTR_STRING(c8-residency, attr_cstate_pkg_c8, "event=0x04");
+PMU_EVENT_ATTR_STRING(c9-residency, attr_cstate_pkg_c9, "event=0x05");
+PMU_EVENT_ATTR_STRING(c10-residency, attr_cstate_pkg_c10, "event=0x06");
+
+static unsigned long pkg_msr_mask;
+
+PMU_EVENT_GROUP(events, cstate_pkg_c2);
+PMU_EVENT_GROUP(events, cstate_pkg_c3);
+PMU_EVENT_GROUP(events, cstate_pkg_c6);
+PMU_EVENT_GROUP(events, cstate_pkg_c7);
+PMU_EVENT_GROUP(events, cstate_pkg_c8);
+PMU_EVENT_GROUP(events, cstate_pkg_c9);
+PMU_EVENT_GROUP(events, cstate_pkg_c10);
+
+static struct perf_msr pkg_msr[] = {
+ [PERF_CSTATE_PKG_C2_RES] = { MSR_PKG_C2_RESIDENCY, &group_cstate_pkg_c2, test_msr },
+ [PERF_CSTATE_PKG_C3_RES] = { MSR_PKG_C3_RESIDENCY, &group_cstate_pkg_c3, test_msr },
+ [PERF_CSTATE_PKG_C6_RES] = { MSR_PKG_C6_RESIDENCY, &group_cstate_pkg_c6, test_msr },
+ [PERF_CSTATE_PKG_C7_RES] = { MSR_PKG_C7_RESIDENCY, &group_cstate_pkg_c7, test_msr },
+ [PERF_CSTATE_PKG_C8_RES] = { MSR_PKG_C8_RESIDENCY, &group_cstate_pkg_c8, test_msr },
+ [PERF_CSTATE_PKG_C9_RES] = { MSR_PKG_C9_RESIDENCY, &group_cstate_pkg_c9, test_msr },
+ [PERF_CSTATE_PKG_C10_RES] = { MSR_PKG_C10_RESIDENCY, &group_cstate_pkg_c10, test_msr },
+};
+
+static struct attribute_group pkg_events_attr_group = {
+ .name = "events",
+ .attrs = attrs_empty,
+};
+
+DEFINE_CSTATE_FORMAT_ATTR(pkg_event, event, "config:0-63");
+static struct attribute *pkg_format_attrs[] = {
+ &format_attr_pkg_event.attr,
+ NULL,
+};
+static struct attribute_group pkg_format_attr_group = {
+ .name = "format",
+ .attrs = pkg_format_attrs,
+};
+
+static cpumask_t cstate_pkg_cpu_mask;
+
+static const struct attribute_group *pkg_attr_groups[] = {
+ &pkg_events_attr_group,
+ &pkg_format_attr_group,
+ &cpumask_attr_group,
+ NULL,
+};
+
+static ssize_t cstate_get_attr_cpumask(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct pmu *pmu = dev_get_drvdata(dev);
+
+ if (pmu == &cstate_core_pmu)
+ return cpumap_print_to_pagebuf(true, buf, &cstate_core_cpu_mask);
+ else if (pmu == &cstate_pkg_pmu)
+ return cpumap_print_to_pagebuf(true, buf, &cstate_pkg_cpu_mask);
+ else
+ return 0;
+}
+
+static int cstate_pmu_event_init(struct perf_event *event)
+{
+ u64 cfg = event->attr.config;
+ int cpu;
+
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ /* unsupported modes and filters */
+ if (event->attr.sample_period) /* no sampling */
+ return -EINVAL;
+
+ if (event->cpu < 0)
+ return -EINVAL;
+
+ if (event->pmu == &cstate_core_pmu) {
+ if (cfg >= PERF_CSTATE_CORE_EVENT_MAX)
+ return -EINVAL;
+ cfg = array_index_nospec((unsigned long)cfg, PERF_CSTATE_CORE_EVENT_MAX);
+ if (!(core_msr_mask & (1 << cfg)))
+ return -EINVAL;
+ event->hw.event_base = core_msr[cfg].msr;
+ cpu = cpumask_any_and(&cstate_core_cpu_mask,
+ topology_sibling_cpumask(event->cpu));
+ } else if (event->pmu == &cstate_pkg_pmu) {
+ if (cfg >= PERF_CSTATE_PKG_EVENT_MAX)
+ return -EINVAL;
+ cfg = array_index_nospec((unsigned long)cfg, PERF_CSTATE_PKG_EVENT_MAX);
+ if (!(pkg_msr_mask & (1 << cfg)))
+ return -EINVAL;
+ event->hw.event_base = pkg_msr[cfg].msr;
+ cpu = cpumask_any_and(&cstate_pkg_cpu_mask,
+ topology_die_cpumask(event->cpu));
+ } else {
+ return -ENOENT;
+ }
+
+ if (cpu >= nr_cpu_ids)
+ return -ENODEV;
+
+ event->cpu = cpu;
+ event->hw.config = cfg;
+ event->hw.idx = -1;
+ return 0;
+}
+
+static inline u64 cstate_pmu_read_counter(struct perf_event *event)
+{
+ u64 val;
+
+ rdmsrl(event->hw.event_base, val);
+ return val;
+}
+
+static void cstate_pmu_event_update(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ u64 prev_raw_count, new_raw_count;
+
+again:
+ prev_raw_count = local64_read(&hwc->prev_count);
+ new_raw_count = cstate_pmu_read_counter(event);
+
+ if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
+ new_raw_count) != prev_raw_count)
+ goto again;
+
+ local64_add(new_raw_count - prev_raw_count, &event->count);
+}
+
+static void cstate_pmu_event_start(struct perf_event *event, int mode)
+{
+ local64_set(&event->hw.prev_count, cstate_pmu_read_counter(event));
+}
+
+static void cstate_pmu_event_stop(struct perf_event *event, int mode)
+{
+ cstate_pmu_event_update(event);
+}
+
+static void cstate_pmu_event_del(struct perf_event *event, int mode)
+{
+ cstate_pmu_event_stop(event, PERF_EF_UPDATE);
+}
+
+static int cstate_pmu_event_add(struct perf_event *event, int mode)
+{
+ if (mode & PERF_EF_START)
+ cstate_pmu_event_start(event, mode);
+
+ return 0;
+}
+
+/*
+ * Check if exiting cpu is the designated reader. If so migrate the
+ * events when there is a valid target available
+ */
+static int cstate_cpu_exit(unsigned int cpu)
+{
+ unsigned int target;
+
+ if (has_cstate_core &&
+ cpumask_test_and_clear_cpu(cpu, &cstate_core_cpu_mask)) {
+
+ target = cpumask_any_but(topology_sibling_cpumask(cpu), cpu);
+ /* Migrate events if there is a valid target */
+ if (target < nr_cpu_ids) {
+ cpumask_set_cpu(target, &cstate_core_cpu_mask);
+ perf_pmu_migrate_context(&cstate_core_pmu, cpu, target);
+ }
+ }
+
+ if (has_cstate_pkg &&
+ cpumask_test_and_clear_cpu(cpu, &cstate_pkg_cpu_mask)) {
+
+ target = cpumask_any_but(topology_die_cpumask(cpu), cpu);
+ /* Migrate events if there is a valid target */
+ if (target < nr_cpu_ids) {
+ cpumask_set_cpu(target, &cstate_pkg_cpu_mask);
+ perf_pmu_migrate_context(&cstate_pkg_pmu, cpu, target);
+ }
+ }
+ return 0;
+}
+
+static int cstate_cpu_init(unsigned int cpu)
+{
+ unsigned int target;
+
+ /*
+ * If this is the first online thread of that core, set it in
+ * the core cpu mask as the designated reader.
+ */
+ target = cpumask_any_and(&cstate_core_cpu_mask,
+ topology_sibling_cpumask(cpu));
+
+ if (has_cstate_core && target >= nr_cpu_ids)
+ cpumask_set_cpu(cpu, &cstate_core_cpu_mask);
+
+ /*
+ * If this is the first online thread of that package, set it
+ * in the package cpu mask as the designated reader.
+ */
+ target = cpumask_any_and(&cstate_pkg_cpu_mask,
+ topology_die_cpumask(cpu));
+ if (has_cstate_pkg && target >= nr_cpu_ids)
+ cpumask_set_cpu(cpu, &cstate_pkg_cpu_mask);
+
+ return 0;
+}
+
+static const struct attribute_group *core_attr_update[] = {
+ &group_cstate_core_c1,
+ &group_cstate_core_c3,
+ &group_cstate_core_c6,
+ &group_cstate_core_c7,
+ NULL,
+};
+
+static const struct attribute_group *pkg_attr_update[] = {
+ &group_cstate_pkg_c2,
+ &group_cstate_pkg_c3,
+ &group_cstate_pkg_c6,
+ &group_cstate_pkg_c7,
+ &group_cstate_pkg_c8,
+ &group_cstate_pkg_c9,
+ &group_cstate_pkg_c10,
+ NULL,
+};
+
+static struct pmu cstate_core_pmu = {
+ .attr_groups = core_attr_groups,
+ .attr_update = core_attr_update,
+ .name = "cstate_core",
+ .task_ctx_nr = perf_invalid_context,
+ .event_init = cstate_pmu_event_init,
+ .add = cstate_pmu_event_add,
+ .del = cstate_pmu_event_del,
+ .start = cstate_pmu_event_start,
+ .stop = cstate_pmu_event_stop,
+ .read = cstate_pmu_event_update,
+ .capabilities = PERF_PMU_CAP_NO_INTERRUPT | PERF_PMU_CAP_NO_EXCLUDE,
+ .module = THIS_MODULE,
+};
+
+static struct pmu cstate_pkg_pmu = {
+ .attr_groups = pkg_attr_groups,
+ .attr_update = pkg_attr_update,
+ .name = "cstate_pkg",
+ .task_ctx_nr = perf_invalid_context,
+ .event_init = cstate_pmu_event_init,
+ .add = cstate_pmu_event_add,
+ .del = cstate_pmu_event_del,
+ .start = cstate_pmu_event_start,
+ .stop = cstate_pmu_event_stop,
+ .read = cstate_pmu_event_update,
+ .capabilities = PERF_PMU_CAP_NO_INTERRUPT | PERF_PMU_CAP_NO_EXCLUDE,
+ .module = THIS_MODULE,
+};
+
+static const struct cstate_model nhm_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C3_RES) |
+ BIT(PERF_CSTATE_CORE_C6_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C3_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES) |
+ BIT(PERF_CSTATE_PKG_C7_RES),
+};
+
+static const struct cstate_model snb_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C3_RES) |
+ BIT(PERF_CSTATE_CORE_C6_RES) |
+ BIT(PERF_CSTATE_CORE_C7_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C3_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES) |
+ BIT(PERF_CSTATE_PKG_C7_RES),
+};
+
+static const struct cstate_model hswult_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C3_RES) |
+ BIT(PERF_CSTATE_CORE_C6_RES) |
+ BIT(PERF_CSTATE_CORE_C7_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C3_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES) |
+ BIT(PERF_CSTATE_PKG_C7_RES) |
+ BIT(PERF_CSTATE_PKG_C8_RES) |
+ BIT(PERF_CSTATE_PKG_C9_RES) |
+ BIT(PERF_CSTATE_PKG_C10_RES),
+};
+
+static const struct cstate_model cnl_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C1_RES) |
+ BIT(PERF_CSTATE_CORE_C3_RES) |
+ BIT(PERF_CSTATE_CORE_C6_RES) |
+ BIT(PERF_CSTATE_CORE_C7_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C3_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES) |
+ BIT(PERF_CSTATE_PKG_C7_RES) |
+ BIT(PERF_CSTATE_PKG_C8_RES) |
+ BIT(PERF_CSTATE_PKG_C9_RES) |
+ BIT(PERF_CSTATE_PKG_C10_RES),
+};
+
+static const struct cstate_model icl_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C6_RES) |
+ BIT(PERF_CSTATE_CORE_C7_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C3_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES) |
+ BIT(PERF_CSTATE_PKG_C7_RES) |
+ BIT(PERF_CSTATE_PKG_C8_RES) |
+ BIT(PERF_CSTATE_PKG_C9_RES) |
+ BIT(PERF_CSTATE_PKG_C10_RES),
+};
+
+static const struct cstate_model icx_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C1_RES) |
+ BIT(PERF_CSTATE_CORE_C6_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES),
+};
+
+static const struct cstate_model adl_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C1_RES) |
+ BIT(PERF_CSTATE_CORE_C6_RES) |
+ BIT(PERF_CSTATE_CORE_C7_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C3_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES) |
+ BIT(PERF_CSTATE_PKG_C7_RES) |
+ BIT(PERF_CSTATE_PKG_C8_RES) |
+ BIT(PERF_CSTATE_PKG_C9_RES) |
+ BIT(PERF_CSTATE_PKG_C10_RES),
+};
+
+static const struct cstate_model slm_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C1_RES) |
+ BIT(PERF_CSTATE_CORE_C6_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C6_RES),
+ .quirks = SLM_PKG_C6_USE_C7_MSR,
+};
+
+
+static const struct cstate_model knl_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C6_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C3_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES),
+ .quirks = KNL_CORE_C6_MSR,
+};
+
+
+static const struct cstate_model glm_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C1_RES) |
+ BIT(PERF_CSTATE_CORE_C3_RES) |
+ BIT(PERF_CSTATE_CORE_C6_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C3_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES) |
+ BIT(PERF_CSTATE_PKG_C10_RES),
+};
+
+
+static const struct x86_cpu_id intel_cstates_match[] __initconst = {
+ X86_MATCH_INTEL_FAM6_MODEL(NEHALEM, &nhm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(NEHALEM_EP, &nhm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(NEHALEM_EX, &nhm_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(WESTMERE, &nhm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(WESTMERE_EP, &nhm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(WESTMERE_EX, &nhm_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE, &snb_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE_X, &snb_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE, &snb_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE_X, &snb_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL, &snb_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL_X, &snb_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL_G, &snb_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL_L, &hswult_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT, &slm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT_D, &slm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_AIRMONT, &slm_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL, &snb_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_D, &snb_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_G, &snb_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_X, &snb_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_L, &snb_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE, &snb_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_X, &snb_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE_L, &hswult_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE, &hswult_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE_L, &hswult_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE, &hswult_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(CANNONLAKE_L, &cnl_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL, &knl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNM, &knl_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT, &glm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT_D, &glm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT_PLUS, &glm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, &glm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT, &glm_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_L, &glm_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, &icl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE, &icl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_X, &icx_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_D, &icx_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X, &icx_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(EMERALDRAPIDS_X, &icx_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(GRANITERAPIDS_X, &icx_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(GRANITERAPIDS_D, &icx_cstates),
+
+ X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE_L, &icl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE, &icl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ROCKETLAKE, &icl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE, &adl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L, &adl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N, &adl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE, &adl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P, &adl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_S, &adl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(METEORLAKE, &adl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(METEORLAKE_L, &adl_cstates),
+ { },
+};
+MODULE_DEVICE_TABLE(x86cpu, intel_cstates_match);
+
+static int __init cstate_probe(const struct cstate_model *cm)
+{
+ /* SLM has different MSR for PKG C6 */
+ if (cm->quirks & SLM_PKG_C6_USE_C7_MSR)
+ pkg_msr[PERF_CSTATE_PKG_C6_RES].msr = MSR_PKG_C7_RESIDENCY;
+
+ /* KNL has different MSR for CORE C6 */
+ if (cm->quirks & KNL_CORE_C6_MSR)
+ pkg_msr[PERF_CSTATE_CORE_C6_RES].msr = MSR_KNL_CORE_C6_RESIDENCY;
+
+
+ core_msr_mask = perf_msr_probe(core_msr, PERF_CSTATE_CORE_EVENT_MAX,
+ true, (void *) &cm->core_events);
+
+ pkg_msr_mask = perf_msr_probe(pkg_msr, PERF_CSTATE_PKG_EVENT_MAX,
+ true, (void *) &cm->pkg_events);
+
+ has_cstate_core = !!core_msr_mask;
+ has_cstate_pkg = !!pkg_msr_mask;
+
+ return (has_cstate_core || has_cstate_pkg) ? 0 : -ENODEV;
+}
+
+static inline void cstate_cleanup(void)
+{
+ cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_CSTATE_ONLINE);
+ cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_CSTATE_STARTING);
+
+ if (has_cstate_core)
+ perf_pmu_unregister(&cstate_core_pmu);
+
+ if (has_cstate_pkg)
+ perf_pmu_unregister(&cstate_pkg_pmu);
+}
+
+static int __init cstate_init(void)
+{
+ int err;
+
+ cpuhp_setup_state(CPUHP_AP_PERF_X86_CSTATE_STARTING,
+ "perf/x86/cstate:starting", cstate_cpu_init, NULL);
+ cpuhp_setup_state(CPUHP_AP_PERF_X86_CSTATE_ONLINE,
+ "perf/x86/cstate:online", NULL, cstate_cpu_exit);
+
+ if (has_cstate_core) {
+ err = perf_pmu_register(&cstate_core_pmu, cstate_core_pmu.name, -1);
+ if (err) {
+ has_cstate_core = false;
+ pr_info("Failed to register cstate core pmu\n");
+ cstate_cleanup();
+ return err;
+ }
+ }
+
+ if (has_cstate_pkg) {
+ if (topology_max_die_per_package() > 1) {
+ err = perf_pmu_register(&cstate_pkg_pmu,
+ "cstate_die", -1);
+ } else {
+ err = perf_pmu_register(&cstate_pkg_pmu,
+ cstate_pkg_pmu.name, -1);
+ }
+ if (err) {
+ has_cstate_pkg = false;
+ pr_info("Failed to register cstate pkg pmu\n");
+ cstate_cleanup();
+ return err;
+ }
+ }
+ return 0;
+}
+
+static int __init cstate_pmu_init(void)
+{
+ const struct x86_cpu_id *id;
+ int err;
+
+ if (boot_cpu_has(X86_FEATURE_HYPERVISOR))
+ return -ENODEV;
+
+ id = x86_match_cpu(intel_cstates_match);
+ if (!id)
+ return -ENODEV;
+
+ err = cstate_probe((const struct cstate_model *) id->driver_data);
+ if (err)
+ return err;
+
+ return cstate_init();
+}
+module_init(cstate_pmu_init);
+
+static void __exit cstate_pmu_exit(void)
+{
+ cstate_cleanup();
+}
+module_exit(cstate_pmu_exit);
diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c
new file mode 100644
index 000000000000..df88576d6b2a
--- /dev/null
+++ b/arch/x86/events/intel/ds.c
@@ -0,0 +1,2425 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/bitops.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/sched/clock.h>
+
+#include <asm/cpu_entry_area.h>
+#include <asm/perf_event.h>
+#include <asm/tlbflush.h>
+#include <asm/insn.h>
+#include <asm/io.h>
+#include <asm/timer.h>
+
+#include "../perf_event.h"
+
+/* Waste a full page so it can be mapped into the cpu_entry_area */
+DEFINE_PER_CPU_PAGE_ALIGNED(struct debug_store, cpu_debug_store);
+
+/* The size of a BTS record in bytes: */
+#define BTS_RECORD_SIZE 24
+
+#define PEBS_FIXUP_SIZE PAGE_SIZE
+
+/*
+ * pebs_record_32 for p4 and core not supported
+
+struct pebs_record_32 {
+ u32 flags, ip;
+ u32 ax, bc, cx, dx;
+ u32 si, di, bp, sp;
+};
+
+ */
+
+union intel_x86_pebs_dse {
+ u64 val;
+ struct {
+ unsigned int ld_dse:4;
+ unsigned int ld_stlb_miss:1;
+ unsigned int ld_locked:1;
+ unsigned int ld_data_blk:1;
+ unsigned int ld_addr_blk:1;
+ unsigned int ld_reserved:24;
+ };
+ struct {
+ unsigned int st_l1d_hit:1;
+ unsigned int st_reserved1:3;
+ unsigned int st_stlb_miss:1;
+ unsigned int st_locked:1;
+ unsigned int st_reserved2:26;
+ };
+ struct {
+ unsigned int st_lat_dse:4;
+ unsigned int st_lat_stlb_miss:1;
+ unsigned int st_lat_locked:1;
+ unsigned int ld_reserved3:26;
+ };
+ struct {
+ unsigned int mtl_dse:5;
+ unsigned int mtl_locked:1;
+ unsigned int mtl_stlb_miss:1;
+ unsigned int mtl_fwd_blk:1;
+ unsigned int ld_reserved4:24;
+ };
+};
+
+
+/*
+ * Map PEBS Load Latency Data Source encodings to generic
+ * memory data source information
+ */
+#define P(a, b) PERF_MEM_S(a, b)
+#define OP_LH (P(OP, LOAD) | P(LVL, HIT))
+#define LEVEL(x) P(LVLNUM, x)
+#define REM P(REMOTE, REMOTE)
+#define SNOOP_NONE_MISS (P(SNOOP, NONE) | P(SNOOP, MISS))
+
+/* Version for Sandy Bridge and later */
+static u64 pebs_data_source[] = {
+ P(OP, LOAD) | P(LVL, MISS) | LEVEL(L3) | P(SNOOP, NA),/* 0x00:ukn L3 */
+ OP_LH | P(LVL, L1) | LEVEL(L1) | P(SNOOP, NONE), /* 0x01: L1 local */
+ OP_LH | P(LVL, LFB) | LEVEL(LFB) | P(SNOOP, NONE), /* 0x02: LFB hit */
+ OP_LH | P(LVL, L2) | LEVEL(L2) | P(SNOOP, NONE), /* 0x03: L2 hit */
+ OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, NONE), /* 0x04: L3 hit */
+ OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, MISS), /* 0x05: L3 hit, snoop miss */
+ OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HIT), /* 0x06: L3 hit, snoop hit */
+ OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HITM), /* 0x07: L3 hit, snoop hitm */
+ OP_LH | P(LVL, REM_CCE1) | REM | LEVEL(L3) | P(SNOOP, HIT), /* 0x08: L3 miss snoop hit */
+ OP_LH | P(LVL, REM_CCE1) | REM | LEVEL(L3) | P(SNOOP, HITM), /* 0x09: L3 miss snoop hitm*/
+ OP_LH | P(LVL, LOC_RAM) | LEVEL(RAM) | P(SNOOP, HIT), /* 0x0a: L3 miss, shared */
+ OP_LH | P(LVL, REM_RAM1) | REM | LEVEL(L3) | P(SNOOP, HIT), /* 0x0b: L3 miss, shared */
+ OP_LH | P(LVL, LOC_RAM) | LEVEL(RAM) | SNOOP_NONE_MISS, /* 0x0c: L3 miss, excl */
+ OP_LH | P(LVL, REM_RAM1) | LEVEL(RAM) | REM | SNOOP_NONE_MISS, /* 0x0d: L3 miss, excl */
+ OP_LH | P(LVL, IO) | LEVEL(NA) | P(SNOOP, NONE), /* 0x0e: I/O */
+ OP_LH | P(LVL, UNC) | LEVEL(NA) | P(SNOOP, NONE), /* 0x0f: uncached */
+};
+
+/* Patch up minor differences in the bits */
+void __init intel_pmu_pebs_data_source_nhm(void)
+{
+ pebs_data_source[0x05] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HIT);
+ pebs_data_source[0x06] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HITM);
+ pebs_data_source[0x07] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HITM);
+}
+
+static void __init __intel_pmu_pebs_data_source_skl(bool pmem, u64 *data_source)
+{
+ u64 pmem_or_l4 = pmem ? LEVEL(PMEM) : LEVEL(L4);
+
+ data_source[0x08] = OP_LH | pmem_or_l4 | P(SNOOP, HIT);
+ data_source[0x09] = OP_LH | pmem_or_l4 | REM | P(SNOOP, HIT);
+ data_source[0x0b] = OP_LH | LEVEL(RAM) | REM | P(SNOOP, NONE);
+ data_source[0x0c] = OP_LH | LEVEL(ANY_CACHE) | REM | P(SNOOPX, FWD);
+ data_source[0x0d] = OP_LH | LEVEL(ANY_CACHE) | REM | P(SNOOP, HITM);
+}
+
+void __init intel_pmu_pebs_data_source_skl(bool pmem)
+{
+ __intel_pmu_pebs_data_source_skl(pmem, pebs_data_source);
+}
+
+static void __init __intel_pmu_pebs_data_source_grt(u64 *data_source)
+{
+ data_source[0x05] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HIT);
+ data_source[0x06] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HITM);
+ data_source[0x08] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOPX, FWD);
+}
+
+void __init intel_pmu_pebs_data_source_grt(void)
+{
+ __intel_pmu_pebs_data_source_grt(pebs_data_source);
+}
+
+void __init intel_pmu_pebs_data_source_adl(void)
+{
+ u64 *data_source;
+
+ data_source = x86_pmu.hybrid_pmu[X86_HYBRID_PMU_CORE_IDX].pebs_data_source;
+ memcpy(data_source, pebs_data_source, sizeof(pebs_data_source));
+ __intel_pmu_pebs_data_source_skl(false, data_source);
+
+ data_source = x86_pmu.hybrid_pmu[X86_HYBRID_PMU_ATOM_IDX].pebs_data_source;
+ memcpy(data_source, pebs_data_source, sizeof(pebs_data_source));
+ __intel_pmu_pebs_data_source_grt(data_source);
+}
+
+static void __init intel_pmu_pebs_data_source_cmt(u64 *data_source)
+{
+ data_source[0x07] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOPX, FWD);
+ data_source[0x08] = OP_LH | P(LVL, L3) | LEVEL(L3) | P(SNOOP, HITM);
+ data_source[0x0a] = OP_LH | P(LVL, LOC_RAM) | LEVEL(RAM) | P(SNOOP, NONE);
+ data_source[0x0b] = OP_LH | LEVEL(RAM) | REM | P(SNOOP, NONE);
+ data_source[0x0c] = OP_LH | LEVEL(RAM) | REM | P(SNOOPX, FWD);
+ data_source[0x0d] = OP_LH | LEVEL(RAM) | REM | P(SNOOP, HITM);
+}
+
+void __init intel_pmu_pebs_data_source_mtl(void)
+{
+ u64 *data_source;
+
+ data_source = x86_pmu.hybrid_pmu[X86_HYBRID_PMU_CORE_IDX].pebs_data_source;
+ memcpy(data_source, pebs_data_source, sizeof(pebs_data_source));
+ __intel_pmu_pebs_data_source_skl(false, data_source);
+
+ data_source = x86_pmu.hybrid_pmu[X86_HYBRID_PMU_ATOM_IDX].pebs_data_source;
+ memcpy(data_source, pebs_data_source, sizeof(pebs_data_source));
+ intel_pmu_pebs_data_source_cmt(data_source);
+}
+
+static u64 precise_store_data(u64 status)
+{
+ union intel_x86_pebs_dse dse;
+ u64 val = P(OP, STORE) | P(SNOOP, NA) | P(LVL, L1) | P(TLB, L2);
+
+ dse.val = status;
+
+ /*
+ * bit 4: TLB access
+ * 1 = stored missed 2nd level TLB
+ *
+ * so it either hit the walker or the OS
+ * otherwise hit 2nd level TLB
+ */
+ if (dse.st_stlb_miss)
+ val |= P(TLB, MISS);
+ else
+ val |= P(TLB, HIT);
+
+ /*
+ * bit 0: hit L1 data cache
+ * if not set, then all we know is that
+ * it missed L1D
+ */
+ if (dse.st_l1d_hit)
+ val |= P(LVL, HIT);
+ else
+ val |= P(LVL, MISS);
+
+ /*
+ * bit 5: Locked prefix
+ */
+ if (dse.st_locked)
+ val |= P(LOCK, LOCKED);
+
+ return val;
+}
+
+static u64 precise_datala_hsw(struct perf_event *event, u64 status)
+{
+ union perf_mem_data_src dse;
+
+ dse.val = PERF_MEM_NA;
+
+ if (event->hw.flags & PERF_X86_EVENT_PEBS_ST_HSW)
+ dse.mem_op = PERF_MEM_OP_STORE;
+ else if (event->hw.flags & PERF_X86_EVENT_PEBS_LD_HSW)
+ dse.mem_op = PERF_MEM_OP_LOAD;
+
+ /*
+ * L1 info only valid for following events:
+ *
+ * MEM_UOPS_RETIRED.STLB_MISS_STORES
+ * MEM_UOPS_RETIRED.LOCK_STORES
+ * MEM_UOPS_RETIRED.SPLIT_STORES
+ * MEM_UOPS_RETIRED.ALL_STORES
+ */
+ if (event->hw.flags & PERF_X86_EVENT_PEBS_ST_HSW) {
+ if (status & 1)
+ dse.mem_lvl = PERF_MEM_LVL_L1 | PERF_MEM_LVL_HIT;
+ else
+ dse.mem_lvl = PERF_MEM_LVL_L1 | PERF_MEM_LVL_MISS;
+ }
+ return dse.val;
+}
+
+static inline void pebs_set_tlb_lock(u64 *val, bool tlb, bool lock)
+{
+ /*
+ * TLB access
+ * 0 = did not miss 2nd level TLB
+ * 1 = missed 2nd level TLB
+ */
+ if (tlb)
+ *val |= P(TLB, MISS) | P(TLB, L2);
+ else
+ *val |= P(TLB, HIT) | P(TLB, L1) | P(TLB, L2);
+
+ /* locked prefix */
+ if (lock)
+ *val |= P(LOCK, LOCKED);
+}
+
+/* Retrieve the latency data for e-core of ADL */
+static u64 __adl_latency_data_small(struct perf_event *event, u64 status,
+ u8 dse, bool tlb, bool lock, bool blk)
+{
+ u64 val;
+
+ WARN_ON_ONCE(hybrid_pmu(event->pmu)->cpu_type == hybrid_big);
+
+ dse &= PERF_PEBS_DATA_SOURCE_MASK;
+ val = hybrid_var(event->pmu, pebs_data_source)[dse];
+
+ pebs_set_tlb_lock(&val, tlb, lock);
+
+ if (blk)
+ val |= P(BLK, DATA);
+ else
+ val |= P(BLK, NA);
+
+ return val;
+}
+
+u64 adl_latency_data_small(struct perf_event *event, u64 status)
+{
+ union intel_x86_pebs_dse dse;
+
+ dse.val = status;
+
+ return __adl_latency_data_small(event, status, dse.ld_dse,
+ dse.ld_locked, dse.ld_stlb_miss,
+ dse.ld_data_blk);
+}
+
+/* Retrieve the latency data for e-core of MTL */
+u64 mtl_latency_data_small(struct perf_event *event, u64 status)
+{
+ union intel_x86_pebs_dse dse;
+
+ dse.val = status;
+
+ return __adl_latency_data_small(event, status, dse.mtl_dse,
+ dse.mtl_stlb_miss, dse.mtl_locked,
+ dse.mtl_fwd_blk);
+}
+
+static u64 load_latency_data(struct perf_event *event, u64 status)
+{
+ union intel_x86_pebs_dse dse;
+ u64 val;
+
+ dse.val = status;
+
+ /*
+ * use the mapping table for bit 0-3
+ */
+ val = hybrid_var(event->pmu, pebs_data_source)[dse.ld_dse];
+
+ /*
+ * Nehalem models do not support TLB, Lock infos
+ */
+ if (x86_pmu.pebs_no_tlb) {
+ val |= P(TLB, NA) | P(LOCK, NA);
+ return val;
+ }
+
+ pebs_set_tlb_lock(&val, dse.ld_stlb_miss, dse.ld_locked);
+
+ /*
+ * Ice Lake and earlier models do not support block infos.
+ */
+ if (!x86_pmu.pebs_block) {
+ val |= P(BLK, NA);
+ return val;
+ }
+ /*
+ * bit 6: load was blocked since its data could not be forwarded
+ * from a preceding store
+ */
+ if (dse.ld_data_blk)
+ val |= P(BLK, DATA);
+
+ /*
+ * bit 7: load was blocked due to potential address conflict with
+ * a preceding store
+ */
+ if (dse.ld_addr_blk)
+ val |= P(BLK, ADDR);
+
+ if (!dse.ld_data_blk && !dse.ld_addr_blk)
+ val |= P(BLK, NA);
+
+ return val;
+}
+
+static u64 store_latency_data(struct perf_event *event, u64 status)
+{
+ union intel_x86_pebs_dse dse;
+ union perf_mem_data_src src;
+ u64 val;
+
+ dse.val = status;
+
+ /*
+ * use the mapping table for bit 0-3
+ */
+ val = hybrid_var(event->pmu, pebs_data_source)[dse.st_lat_dse];
+
+ pebs_set_tlb_lock(&val, dse.st_lat_stlb_miss, dse.st_lat_locked);
+
+ val |= P(BLK, NA);
+
+ /*
+ * the pebs_data_source table is only for loads
+ * so override the mem_op to say STORE instead
+ */
+ src.val = val;
+ src.mem_op = P(OP,STORE);
+
+ return src.val;
+}
+
+struct pebs_record_core {
+ u64 flags, ip;
+ u64 ax, bx, cx, dx;
+ u64 si, di, bp, sp;
+ u64 r8, r9, r10, r11;
+ u64 r12, r13, r14, r15;
+};
+
+struct pebs_record_nhm {
+ u64 flags, ip;
+ u64 ax, bx, cx, dx;
+ u64 si, di, bp, sp;
+ u64 r8, r9, r10, r11;
+ u64 r12, r13, r14, r15;
+ u64 status, dla, dse, lat;
+};
+
+/*
+ * Same as pebs_record_nhm, with two additional fields.
+ */
+struct pebs_record_hsw {
+ u64 flags, ip;
+ u64 ax, bx, cx, dx;
+ u64 si, di, bp, sp;
+ u64 r8, r9, r10, r11;
+ u64 r12, r13, r14, r15;
+ u64 status, dla, dse, lat;
+ u64 real_ip, tsx_tuning;
+};
+
+union hsw_tsx_tuning {
+ struct {
+ u32 cycles_last_block : 32,
+ hle_abort : 1,
+ rtm_abort : 1,
+ instruction_abort : 1,
+ non_instruction_abort : 1,
+ retry : 1,
+ data_conflict : 1,
+ capacity_writes : 1,
+ capacity_reads : 1;
+ };
+ u64 value;
+};
+
+#define PEBS_HSW_TSX_FLAGS 0xff00000000ULL
+
+/* Same as HSW, plus TSC */
+
+struct pebs_record_skl {
+ u64 flags, ip;
+ u64 ax, bx, cx, dx;
+ u64 si, di, bp, sp;
+ u64 r8, r9, r10, r11;
+ u64 r12, r13, r14, r15;
+ u64 status, dla, dse, lat;
+ u64 real_ip, tsx_tuning;
+ u64 tsc;
+};
+
+void init_debug_store_on_cpu(int cpu)
+{
+ struct debug_store *ds = per_cpu(cpu_hw_events, cpu).ds;
+
+ if (!ds)
+ return;
+
+ wrmsr_on_cpu(cpu, MSR_IA32_DS_AREA,
+ (u32)((u64)(unsigned long)ds),
+ (u32)((u64)(unsigned long)ds >> 32));
+}
+
+void fini_debug_store_on_cpu(int cpu)
+{
+ if (!per_cpu(cpu_hw_events, cpu).ds)
+ return;
+
+ wrmsr_on_cpu(cpu, MSR_IA32_DS_AREA, 0, 0);
+}
+
+static DEFINE_PER_CPU(void *, insn_buffer);
+
+static void ds_update_cea(void *cea, void *addr, size_t size, pgprot_t prot)
+{
+ unsigned long start = (unsigned long)cea;
+ phys_addr_t pa;
+ size_t msz = 0;
+
+ pa = virt_to_phys(addr);
+
+ preempt_disable();
+ for (; msz < size; msz += PAGE_SIZE, pa += PAGE_SIZE, cea += PAGE_SIZE)
+ cea_set_pte(cea, pa, prot);
+
+ /*
+ * This is a cross-CPU update of the cpu_entry_area, we must shoot down
+ * all TLB entries for it.
+ */
+ flush_tlb_kernel_range(start, start + size);
+ preempt_enable();
+}
+
+static void ds_clear_cea(void *cea, size_t size)
+{
+ unsigned long start = (unsigned long)cea;
+ size_t msz = 0;
+
+ preempt_disable();
+ for (; msz < size; msz += PAGE_SIZE, cea += PAGE_SIZE)
+ cea_set_pte(cea, 0, PAGE_NONE);
+
+ flush_tlb_kernel_range(start, start + size);
+ preempt_enable();
+}
+
+static void *dsalloc_pages(size_t size, gfp_t flags, int cpu)
+{
+ unsigned int order = get_order(size);
+ int node = cpu_to_node(cpu);
+ struct page *page;
+
+ page = __alloc_pages_node(node, flags | __GFP_ZERO, order);
+ return page ? page_address(page) : NULL;
+}
+
+static void dsfree_pages(const void *buffer, size_t size)
+{
+ if (buffer)
+ free_pages((unsigned long)buffer, get_order(size));
+}
+
+static int alloc_pebs_buffer(int cpu)
+{
+ struct cpu_hw_events *hwev = per_cpu_ptr(&cpu_hw_events, cpu);
+ struct debug_store *ds = hwev->ds;
+ size_t bsiz = x86_pmu.pebs_buffer_size;
+ int max, node = cpu_to_node(cpu);
+ void *buffer, *insn_buff, *cea;
+
+ if (!x86_pmu.pebs)
+ return 0;
+
+ buffer = dsalloc_pages(bsiz, GFP_KERNEL, cpu);
+ if (unlikely(!buffer))
+ return -ENOMEM;
+
+ /*
+ * HSW+ already provides us the eventing ip; no need to allocate this
+ * buffer then.
+ */
+ if (x86_pmu.intel_cap.pebs_format < 2) {
+ insn_buff = kzalloc_node(PEBS_FIXUP_SIZE, GFP_KERNEL, node);
+ if (!insn_buff) {
+ dsfree_pages(buffer, bsiz);
+ return -ENOMEM;
+ }
+ per_cpu(insn_buffer, cpu) = insn_buff;
+ }
+ hwev->ds_pebs_vaddr = buffer;
+ /* Update the cpu entry area mapping */
+ cea = &get_cpu_entry_area(cpu)->cpu_debug_buffers.pebs_buffer;
+ ds->pebs_buffer_base = (unsigned long) cea;
+ ds_update_cea(cea, buffer, bsiz, PAGE_KERNEL);
+ ds->pebs_index = ds->pebs_buffer_base;
+ max = x86_pmu.pebs_record_size * (bsiz / x86_pmu.pebs_record_size);
+ ds->pebs_absolute_maximum = ds->pebs_buffer_base + max;
+ return 0;
+}
+
+static void release_pebs_buffer(int cpu)
+{
+ struct cpu_hw_events *hwev = per_cpu_ptr(&cpu_hw_events, cpu);
+ void *cea;
+
+ if (!x86_pmu.pebs)
+ return;
+
+ kfree(per_cpu(insn_buffer, cpu));
+ per_cpu(insn_buffer, cpu) = NULL;
+
+ /* Clear the fixmap */
+ cea = &get_cpu_entry_area(cpu)->cpu_debug_buffers.pebs_buffer;
+ ds_clear_cea(cea, x86_pmu.pebs_buffer_size);
+ dsfree_pages(hwev->ds_pebs_vaddr, x86_pmu.pebs_buffer_size);
+ hwev->ds_pebs_vaddr = NULL;
+}
+
+static int alloc_bts_buffer(int cpu)
+{
+ struct cpu_hw_events *hwev = per_cpu_ptr(&cpu_hw_events, cpu);
+ struct debug_store *ds = hwev->ds;
+ void *buffer, *cea;
+ int max;
+
+ if (!x86_pmu.bts)
+ return 0;
+
+ buffer = dsalloc_pages(BTS_BUFFER_SIZE, GFP_KERNEL | __GFP_NOWARN, cpu);
+ if (unlikely(!buffer)) {
+ WARN_ONCE(1, "%s: BTS buffer allocation failure\n", __func__);
+ return -ENOMEM;
+ }
+ hwev->ds_bts_vaddr = buffer;
+ /* Update the fixmap */
+ cea = &get_cpu_entry_area(cpu)->cpu_debug_buffers.bts_buffer;
+ ds->bts_buffer_base = (unsigned long) cea;
+ ds_update_cea(cea, buffer, BTS_BUFFER_SIZE, PAGE_KERNEL);
+ ds->bts_index = ds->bts_buffer_base;
+ max = BTS_BUFFER_SIZE / BTS_RECORD_SIZE;
+ ds->bts_absolute_maximum = ds->bts_buffer_base +
+ max * BTS_RECORD_SIZE;
+ ds->bts_interrupt_threshold = ds->bts_absolute_maximum -
+ (max / 16) * BTS_RECORD_SIZE;
+ return 0;
+}
+
+static void release_bts_buffer(int cpu)
+{
+ struct cpu_hw_events *hwev = per_cpu_ptr(&cpu_hw_events, cpu);
+ void *cea;
+
+ if (!x86_pmu.bts)
+ return;
+
+ /* Clear the fixmap */
+ cea = &get_cpu_entry_area(cpu)->cpu_debug_buffers.bts_buffer;
+ ds_clear_cea(cea, BTS_BUFFER_SIZE);
+ dsfree_pages(hwev->ds_bts_vaddr, BTS_BUFFER_SIZE);
+ hwev->ds_bts_vaddr = NULL;
+}
+
+static int alloc_ds_buffer(int cpu)
+{
+ struct debug_store *ds = &get_cpu_entry_area(cpu)->cpu_debug_store;
+
+ memset(ds, 0, sizeof(*ds));
+ per_cpu(cpu_hw_events, cpu).ds = ds;
+ return 0;
+}
+
+static void release_ds_buffer(int cpu)
+{
+ per_cpu(cpu_hw_events, cpu).ds = NULL;
+}
+
+void release_ds_buffers(void)
+{
+ int cpu;
+
+ if (!x86_pmu.bts && !x86_pmu.pebs)
+ return;
+
+ for_each_possible_cpu(cpu)
+ release_ds_buffer(cpu);
+
+ for_each_possible_cpu(cpu) {
+ /*
+ * Again, ignore errors from offline CPUs, they will no longer
+ * observe cpu_hw_events.ds and not program the DS_AREA when
+ * they come up.
+ */
+ fini_debug_store_on_cpu(cpu);
+ }
+
+ for_each_possible_cpu(cpu) {
+ release_pebs_buffer(cpu);
+ release_bts_buffer(cpu);
+ }
+}
+
+void reserve_ds_buffers(void)
+{
+ int bts_err = 0, pebs_err = 0;
+ int cpu;
+
+ x86_pmu.bts_active = 0;
+ x86_pmu.pebs_active = 0;
+
+ if (!x86_pmu.bts && !x86_pmu.pebs)
+ return;
+
+ if (!x86_pmu.bts)
+ bts_err = 1;
+
+ if (!x86_pmu.pebs)
+ pebs_err = 1;
+
+ for_each_possible_cpu(cpu) {
+ if (alloc_ds_buffer(cpu)) {
+ bts_err = 1;
+ pebs_err = 1;
+ }
+
+ if (!bts_err && alloc_bts_buffer(cpu))
+ bts_err = 1;
+
+ if (!pebs_err && alloc_pebs_buffer(cpu))
+ pebs_err = 1;
+
+ if (bts_err && pebs_err)
+ break;
+ }
+
+ if (bts_err) {
+ for_each_possible_cpu(cpu)
+ release_bts_buffer(cpu);
+ }
+
+ if (pebs_err) {
+ for_each_possible_cpu(cpu)
+ release_pebs_buffer(cpu);
+ }
+
+ if (bts_err && pebs_err) {
+ for_each_possible_cpu(cpu)
+ release_ds_buffer(cpu);
+ } else {
+ if (x86_pmu.bts && !bts_err)
+ x86_pmu.bts_active = 1;
+
+ if (x86_pmu.pebs && !pebs_err)
+ x86_pmu.pebs_active = 1;
+
+ for_each_possible_cpu(cpu) {
+ /*
+ * Ignores wrmsr_on_cpu() errors for offline CPUs they
+ * will get this call through intel_pmu_cpu_starting().
+ */
+ init_debug_store_on_cpu(cpu);
+ }
+ }
+}
+
+/*
+ * BTS
+ */
+
+struct event_constraint bts_constraint =
+ EVENT_CONSTRAINT(0, 1ULL << INTEL_PMC_IDX_FIXED_BTS, 0);
+
+void intel_pmu_enable_bts(u64 config)
+{
+ unsigned long debugctlmsr;
+
+ debugctlmsr = get_debugctlmsr();
+
+ debugctlmsr |= DEBUGCTLMSR_TR;
+ debugctlmsr |= DEBUGCTLMSR_BTS;
+ if (config & ARCH_PERFMON_EVENTSEL_INT)
+ debugctlmsr |= DEBUGCTLMSR_BTINT;
+
+ if (!(config & ARCH_PERFMON_EVENTSEL_OS))
+ debugctlmsr |= DEBUGCTLMSR_BTS_OFF_OS;
+
+ if (!(config & ARCH_PERFMON_EVENTSEL_USR))
+ debugctlmsr |= DEBUGCTLMSR_BTS_OFF_USR;
+
+ update_debugctlmsr(debugctlmsr);
+}
+
+void intel_pmu_disable_bts(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ unsigned long debugctlmsr;
+
+ if (!cpuc->ds)
+ return;
+
+ debugctlmsr = get_debugctlmsr();
+
+ debugctlmsr &=
+ ~(DEBUGCTLMSR_TR | DEBUGCTLMSR_BTS | DEBUGCTLMSR_BTINT |
+ DEBUGCTLMSR_BTS_OFF_OS | DEBUGCTLMSR_BTS_OFF_USR);
+
+ update_debugctlmsr(debugctlmsr);
+}
+
+int intel_pmu_drain_bts_buffer(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct debug_store *ds = cpuc->ds;
+ struct bts_record {
+ u64 from;
+ u64 to;
+ u64 flags;
+ };
+ struct perf_event *event = cpuc->events[INTEL_PMC_IDX_FIXED_BTS];
+ struct bts_record *at, *base, *top;
+ struct perf_output_handle handle;
+ struct perf_event_header header;
+ struct perf_sample_data data;
+ unsigned long skip = 0;
+ struct pt_regs regs;
+
+ if (!event)
+ return 0;
+
+ if (!x86_pmu.bts_active)
+ return 0;
+
+ base = (struct bts_record *)(unsigned long)ds->bts_buffer_base;
+ top = (struct bts_record *)(unsigned long)ds->bts_index;
+
+ if (top <= base)
+ return 0;
+
+ memset(&regs, 0, sizeof(regs));
+
+ ds->bts_index = ds->bts_buffer_base;
+
+ perf_sample_data_init(&data, 0, event->hw.last_period);
+
+ /*
+ * BTS leaks kernel addresses in branches across the cpl boundary,
+ * such as traps or system calls, so unless the user is asking for
+ * kernel tracing (and right now it's not possible), we'd need to
+ * filter them out. But first we need to count how many of those we
+ * have in the current batch. This is an extra O(n) pass, however,
+ * it's much faster than the other one especially considering that
+ * n <= 2560 (BTS_BUFFER_SIZE / BTS_RECORD_SIZE * 15/16; see the
+ * alloc_bts_buffer()).
+ */
+ for (at = base; at < top; at++) {
+ /*
+ * Note that right now *this* BTS code only works if
+ * attr::exclude_kernel is set, but let's keep this extra
+ * check here in case that changes.
+ */
+ if (event->attr.exclude_kernel &&
+ (kernel_ip(at->from) || kernel_ip(at->to)))
+ skip++;
+ }
+
+ /*
+ * Prepare a generic sample, i.e. fill in the invariant fields.
+ * We will overwrite the from and to address before we output
+ * the sample.
+ */
+ rcu_read_lock();
+ perf_prepare_sample(&data, event, &regs);
+ perf_prepare_header(&header, &data, event, &regs);
+
+ if (perf_output_begin(&handle, &data, event,
+ header.size * (top - base - skip)))
+ goto unlock;
+
+ for (at = base; at < top; at++) {
+ /* Filter out any records that contain kernel addresses. */
+ if (event->attr.exclude_kernel &&
+ (kernel_ip(at->from) || kernel_ip(at->to)))
+ continue;
+
+ data.ip = at->from;
+ data.addr = at->to;
+
+ perf_output_sample(&handle, &header, &data, event);
+ }
+
+ perf_output_end(&handle);
+
+ /* There's new data available. */
+ event->hw.interrupts++;
+ event->pending_kill = POLL_IN;
+unlock:
+ rcu_read_unlock();
+ return 1;
+}
+
+static inline void intel_pmu_drain_pebs_buffer(void)
+{
+ struct perf_sample_data data;
+
+ x86_pmu.drain_pebs(NULL, &data);
+}
+
+/*
+ * PEBS
+ */
+struct event_constraint intel_core2_pebs_event_constraints[] = {
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x00c0, 0x1), /* INST_RETIRED.ANY */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0xfec1, 0x1), /* X87_OPS_RETIRED.ANY */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x00c5, 0x1), /* BR_INST_RETIRED.MISPRED */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x1fc7, 0x1), /* SIMD_INST_RETURED.ANY */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED.* */
+ /* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x01),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_atom_pebs_event_constraints[] = {
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x00c0, 0x1), /* INST_RETIRED.ANY */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x00c5, 0x1), /* MISPREDICTED_BRANCH_RETIRED */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED.* */
+ /* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x01),
+ /* Allow all events as PEBS with no flags */
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0x1),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_slm_pebs_event_constraints[] = {
+ /* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x1),
+ /* Allow all events as PEBS with no flags */
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0x1),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_glm_pebs_event_constraints[] = {
+ /* Allow all events as PEBS with no flags */
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0x1),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_grt_pebs_event_constraints[] = {
+ /* Allow all events as PEBS with no flags */
+ INTEL_HYBRID_LAT_CONSTRAINT(0x5d0, 0x3),
+ INTEL_HYBRID_LAT_CONSTRAINT(0x6d0, 0xf),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_nehalem_pebs_event_constraints[] = {
+ INTEL_PLD_CONSTRAINT(0x100b, 0xf), /* MEM_INST_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0x0f, 0xf), /* MEM_UNCORE_RETIRED.* */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x010c, 0xf), /* MEM_STORE_RETIRED.DTLB_MISS */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xc0, 0xf), /* INST_RETIRED.ANY */
+ INTEL_EVENT_CONSTRAINT(0xc2, 0xf), /* UOPS_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x02c5, 0xf), /* BR_MISP_RETIRED.NEAR_CALL */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xc7, 0xf), /* SSEX_UOPS_RETIRED.* */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x20c8, 0xf), /* ITLB_MISS_RETIRED */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0xf), /* MEM_LOAD_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xf7, 0xf), /* FP_ASSIST.* */
+ /* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x0f),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_westmere_pebs_event_constraints[] = {
+ INTEL_PLD_CONSTRAINT(0x100b, 0xf), /* MEM_INST_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0x0f, 0xf), /* MEM_UNCORE_RETIRED.* */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x010c, 0xf), /* MEM_STORE_RETIRED.DTLB_MISS */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xc0, 0xf), /* INSTR_RETIRED.* */
+ INTEL_EVENT_CONSTRAINT(0xc2, 0xf), /* UOPS_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xc4, 0xf), /* BR_INST_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xc5, 0xf), /* BR_MISP_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xc7, 0xf), /* SSEX_UOPS_RETIRED.* */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x20c8, 0xf), /* ITLB_MISS_RETIRED */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xcb, 0xf), /* MEM_LOAD_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xf7, 0xf), /* FP_ASSIST.* */
+ /* INST_RETIRED.ANY_P, inv=1, cmask=16 (cycles:p). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x0f),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_snb_pebs_event_constraints[] = {
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
+ INTEL_PLD_CONSTRAINT(0x01cd, 0x8), /* MEM_TRANS_RETIRED.LAT_ABOVE_THR */
+ INTEL_PST_CONSTRAINT(0x02cd, 0x8), /* MEM_TRANS_RETIRED.PRECISE_STORES */
+ /* UOPS_RETIRED.ALL, inv=1, cmask=16 (cycles:p). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c2, 0xf),
+ INTEL_EXCLEVT_CONSTRAINT(0xd0, 0xf), /* MEM_UOP_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */
+ /* Allow all events as PEBS with no flags */
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0xf),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_ivb_pebs_event_constraints[] = {
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
+ INTEL_PLD_CONSTRAINT(0x01cd, 0x8), /* MEM_TRANS_RETIRED.LAT_ABOVE_THR */
+ INTEL_PST_CONSTRAINT(0x02cd, 0x8), /* MEM_TRANS_RETIRED.PRECISE_STORES */
+ /* UOPS_RETIRED.ALL, inv=1, cmask=16 (cycles:p). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c2, 0xf),
+ /* INST_RETIRED.PREC_DIST, inv=1, cmask=16 (cycles:ppp). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c0, 0x2),
+ INTEL_EXCLEVT_CONSTRAINT(0xd0, 0xf), /* MEM_UOP_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */
+ INTEL_EXCLEVT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */
+ /* Allow all events as PEBS with no flags */
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0xf),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_hsw_pebs_event_constraints[] = {
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
+ INTEL_PLD_CONSTRAINT(0x01cd, 0xf), /* MEM_TRANS_RETIRED.* */
+ /* UOPS_RETIRED.ALL, inv=1, cmask=16 (cycles:p). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c2, 0xf),
+ /* INST_RETIRED.PREC_DIST, inv=1, cmask=16 (cycles:ppp). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c0, 0x2),
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_NA(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XLD(0x11d0, 0xf), /* MEM_UOPS_RETIRED.STLB_MISS_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XLD(0x21d0, 0xf), /* MEM_UOPS_RETIRED.LOCK_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XLD(0x41d0, 0xf), /* MEM_UOPS_RETIRED.SPLIT_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XLD(0x81d0, 0xf), /* MEM_UOPS_RETIRED.ALL_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XST(0x12d0, 0xf), /* MEM_UOPS_RETIRED.STLB_MISS_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XST(0x42d0, 0xf), /* MEM_UOPS_RETIRED.SPLIT_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XST(0x82d0, 0xf), /* MEM_UOPS_RETIRED.ALL_STORES */
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_XLD(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_XLD(0xd2, 0xf), /* MEM_LOAD_UOPS_L3_HIT_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_XLD(0xd3, 0xf), /* MEM_LOAD_UOPS_L3_MISS_RETIRED.* */
+ /* Allow all events as PEBS with no flags */
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0xf),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_bdw_pebs_event_constraints[] = {
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PRECDIST */
+ INTEL_PLD_CONSTRAINT(0x01cd, 0xf), /* MEM_TRANS_RETIRED.* */
+ /* UOPS_RETIRED.ALL, inv=1, cmask=16 (cycles:p). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c2, 0xf),
+ /* INST_RETIRED.PREC_DIST, inv=1, cmask=16 (cycles:ppp). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c0, 0x2),
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_NA(0x01c2, 0xf), /* UOPS_RETIRED.ALL */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x11d0, 0xf), /* MEM_UOPS_RETIRED.STLB_MISS_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x21d0, 0xf), /* MEM_UOPS_RETIRED.LOCK_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x41d0, 0xf), /* MEM_UOPS_RETIRED.SPLIT_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x81d0, 0xf), /* MEM_UOPS_RETIRED.ALL_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x12d0, 0xf), /* MEM_UOPS_RETIRED.STLB_MISS_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x42d0, 0xf), /* MEM_UOPS_RETIRED.SPLIT_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x82d0, 0xf), /* MEM_UOPS_RETIRED.ALL_STORES */
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD(0xd2, 0xf), /* MEM_LOAD_UOPS_L3_HIT_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD(0xd3, 0xf), /* MEM_LOAD_UOPS_L3_MISS_RETIRED.* */
+ /* Allow all events as PEBS with no flags */
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0xf),
+ EVENT_CONSTRAINT_END
+};
+
+
+struct event_constraint intel_skl_pebs_event_constraints[] = {
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x1c0, 0x2), /* INST_RETIRED.PREC_DIST */
+ /* INST_RETIRED.PREC_DIST, inv=1, cmask=16 (cycles:ppp). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108001c0, 0x2),
+ /* INST_RETIRED.TOTAL_CYCLES_PS (inv=1, cmask=16) (cycles:p). */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x108000c0, 0x0f),
+ INTEL_PLD_CONSTRAINT(0x1cd, 0xf), /* MEM_TRANS_RETIRED.* */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x11d0, 0xf), /* MEM_INST_RETIRED.STLB_MISS_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x12d0, 0xf), /* MEM_INST_RETIRED.STLB_MISS_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x21d0, 0xf), /* MEM_INST_RETIRED.LOCK_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x22d0, 0xf), /* MEM_INST_RETIRED.LOCK_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x41d0, 0xf), /* MEM_INST_RETIRED.SPLIT_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x42d0, 0xf), /* MEM_INST_RETIRED.SPLIT_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x81d0, 0xf), /* MEM_INST_RETIRED.ALL_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x82d0, 0xf), /* MEM_INST_RETIRED.ALL_STORES */
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD(0xd1, 0xf), /* MEM_LOAD_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD(0xd2, 0xf), /* MEM_LOAD_L3_HIT_RETIRED.* */
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD(0xd3, 0xf), /* MEM_LOAD_L3_MISS_RETIRED.* */
+ /* Allow all events as PEBS with no flags */
+ INTEL_ALL_EVENT_CONSTRAINT(0, 0xf),
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_icl_pebs_event_constraints[] = {
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x01c0, 0x100000000ULL), /* old INST_RETIRED.PREC_DIST */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x0100, 0x100000000ULL), /* INST_RETIRED.PREC_DIST */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x0400, 0x800000000ULL), /* SLOTS */
+
+ INTEL_PLD_CONSTRAINT(0x1cd, 0xff), /* MEM_TRANS_RETIRED.LOAD_LATENCY */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x11d0, 0xf), /* MEM_INST_RETIRED.STLB_MISS_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x12d0, 0xf), /* MEM_INST_RETIRED.STLB_MISS_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x21d0, 0xf), /* MEM_INST_RETIRED.LOCK_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x41d0, 0xf), /* MEM_INST_RETIRED.SPLIT_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x42d0, 0xf), /* MEM_INST_RETIRED.SPLIT_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x81d0, 0xf), /* MEM_INST_RETIRED.ALL_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x82d0, 0xf), /* MEM_INST_RETIRED.ALL_STORES */
+
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD_RANGE(0xd1, 0xd4, 0xf), /* MEM_LOAD_*_RETIRED.* */
+
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_INST_RETIRED.* */
+
+ /*
+ * Everything else is handled by PMU_FL_PEBS_ALL, because we
+ * need the full constraints from the main table.
+ */
+
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint intel_spr_pebs_event_constraints[] = {
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x100, 0x100000000ULL), /* INST_RETIRED.PREC_DIST */
+ INTEL_FLAGS_UEVENT_CONSTRAINT(0x0400, 0x800000000ULL),
+
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xc0, 0xfe),
+ INTEL_PLD_CONSTRAINT(0x1cd, 0xfe),
+ INTEL_PSD_CONSTRAINT(0x2cd, 0x1),
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x11d0, 0xf), /* MEM_INST_RETIRED.STLB_MISS_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x12d0, 0xf), /* MEM_INST_RETIRED.STLB_MISS_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x21d0, 0xf), /* MEM_INST_RETIRED.LOCK_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x41d0, 0xf), /* MEM_INST_RETIRED.SPLIT_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x42d0, 0xf), /* MEM_INST_RETIRED.SPLIT_STORES */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(0x81d0, 0xf), /* MEM_INST_RETIRED.ALL_LOADS */
+ INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(0x82d0, 0xf), /* MEM_INST_RETIRED.ALL_STORES */
+
+ INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD_RANGE(0xd1, 0xd4, 0xf),
+
+ INTEL_FLAGS_EVENT_CONSTRAINT(0xd0, 0xf),
+
+ /*
+ * Everything else is handled by PMU_FL_PEBS_ALL, because we
+ * need the full constraints from the main table.
+ */
+
+ EVENT_CONSTRAINT_END
+};
+
+struct event_constraint *intel_pebs_constraints(struct perf_event *event)
+{
+ struct event_constraint *pebs_constraints = hybrid(event->pmu, pebs_constraints);
+ struct event_constraint *c;
+
+ if (!event->attr.precise_ip)
+ return NULL;
+
+ if (pebs_constraints) {
+ for_each_event_constraint(c, pebs_constraints) {
+ if (constraint_match(c, event->hw.config)) {
+ event->hw.flags |= c->flags;
+ return c;
+ }
+ }
+ }
+
+ /*
+ * Extended PEBS support
+ * Makes the PEBS code search the normal constraints.
+ */
+ if (x86_pmu.flags & PMU_FL_PEBS_ALL)
+ return NULL;
+
+ return &emptyconstraint;
+}
+
+/*
+ * We need the sched_task callback even for per-cpu events when we use
+ * the large interrupt threshold, such that we can provide PID and TID
+ * to PEBS samples.
+ */
+static inline bool pebs_needs_sched_cb(struct cpu_hw_events *cpuc)
+{
+ if (cpuc->n_pebs == cpuc->n_pebs_via_pt)
+ return false;
+
+ return cpuc->n_pebs && (cpuc->n_pebs == cpuc->n_large_pebs);
+}
+
+void intel_pmu_pebs_sched_task(struct perf_event_pmu_context *pmu_ctx, bool sched_in)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (!sched_in && pebs_needs_sched_cb(cpuc))
+ intel_pmu_drain_pebs_buffer();
+}
+
+static inline void pebs_update_threshold(struct cpu_hw_events *cpuc)
+{
+ struct debug_store *ds = cpuc->ds;
+ int max_pebs_events = hybrid(cpuc->pmu, max_pebs_events);
+ int num_counters_fixed = hybrid(cpuc->pmu, num_counters_fixed);
+ u64 threshold;
+ int reserved;
+
+ if (cpuc->n_pebs_via_pt)
+ return;
+
+ if (x86_pmu.flags & PMU_FL_PEBS_ALL)
+ reserved = max_pebs_events + num_counters_fixed;
+ else
+ reserved = max_pebs_events;
+
+ if (cpuc->n_pebs == cpuc->n_large_pebs) {
+ threshold = ds->pebs_absolute_maximum -
+ reserved * cpuc->pebs_record_size;
+ } else {
+ threshold = ds->pebs_buffer_base + cpuc->pebs_record_size;
+ }
+
+ ds->pebs_interrupt_threshold = threshold;
+}
+
+static void adaptive_pebs_record_size_update(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ u64 pebs_data_cfg = cpuc->pebs_data_cfg;
+ int sz = sizeof(struct pebs_basic);
+
+ if (pebs_data_cfg & PEBS_DATACFG_MEMINFO)
+ sz += sizeof(struct pebs_meminfo);
+ if (pebs_data_cfg & PEBS_DATACFG_GP)
+ sz += sizeof(struct pebs_gprs);
+ if (pebs_data_cfg & PEBS_DATACFG_XMMS)
+ sz += sizeof(struct pebs_xmm);
+ if (pebs_data_cfg & PEBS_DATACFG_LBRS)
+ sz += x86_pmu.lbr_nr * sizeof(struct lbr_entry);
+
+ cpuc->pebs_record_size = sz;
+}
+
+#define PERF_PEBS_MEMINFO_TYPE (PERF_SAMPLE_ADDR | PERF_SAMPLE_DATA_SRC | \
+ PERF_SAMPLE_PHYS_ADDR | \
+ PERF_SAMPLE_WEIGHT_TYPE | \
+ PERF_SAMPLE_TRANSACTION | \
+ PERF_SAMPLE_DATA_PAGE_SIZE)
+
+static u64 pebs_update_adaptive_cfg(struct perf_event *event)
+{
+ struct perf_event_attr *attr = &event->attr;
+ u64 sample_type = attr->sample_type;
+ u64 pebs_data_cfg = 0;
+ bool gprs, tsx_weight;
+
+ if (!(sample_type & ~(PERF_SAMPLE_IP|PERF_SAMPLE_TIME)) &&
+ attr->precise_ip > 1)
+ return pebs_data_cfg;
+
+ if (sample_type & PERF_PEBS_MEMINFO_TYPE)
+ pebs_data_cfg |= PEBS_DATACFG_MEMINFO;
+
+ /*
+ * We need GPRs when:
+ * + user requested them
+ * + precise_ip < 2 for the non event IP
+ * + For RTM TSX weight we need GPRs for the abort code.
+ */
+ gprs = (sample_type & PERF_SAMPLE_REGS_INTR) &&
+ (attr->sample_regs_intr & PEBS_GP_REGS);
+
+ tsx_weight = (sample_type & PERF_SAMPLE_WEIGHT_TYPE) &&
+ ((attr->config & INTEL_ARCH_EVENT_MASK) ==
+ x86_pmu.rtm_abort_event);
+
+ if (gprs || (attr->precise_ip < 2) || tsx_weight)
+ pebs_data_cfg |= PEBS_DATACFG_GP;
+
+ if ((sample_type & PERF_SAMPLE_REGS_INTR) &&
+ (attr->sample_regs_intr & PERF_REG_EXTENDED_MASK))
+ pebs_data_cfg |= PEBS_DATACFG_XMMS;
+
+ if (sample_type & PERF_SAMPLE_BRANCH_STACK) {
+ /*
+ * For now always log all LBRs. Could configure this
+ * later.
+ */
+ pebs_data_cfg |= PEBS_DATACFG_LBRS |
+ ((x86_pmu.lbr_nr-1) << PEBS_DATACFG_LBR_SHIFT);
+ }
+
+ return pebs_data_cfg;
+}
+
+static void
+pebs_update_state(bool needed_cb, struct cpu_hw_events *cpuc,
+ struct perf_event *event, bool add)
+{
+ struct pmu *pmu = event->pmu;
+
+ /*
+ * Make sure we get updated with the first PEBS
+ * event. It will trigger also during removal, but
+ * that does not hurt:
+ */
+ if (cpuc->n_pebs == 1)
+ cpuc->pebs_data_cfg = PEBS_UPDATE_DS_SW;
+
+ if (needed_cb != pebs_needs_sched_cb(cpuc)) {
+ if (!needed_cb)
+ perf_sched_cb_inc(pmu);
+ else
+ perf_sched_cb_dec(pmu);
+
+ cpuc->pebs_data_cfg |= PEBS_UPDATE_DS_SW;
+ }
+
+ /*
+ * The PEBS record doesn't shrink on pmu::del(). Doing so would require
+ * iterating all remaining PEBS events to reconstruct the config.
+ */
+ if (x86_pmu.intel_cap.pebs_baseline && add) {
+ u64 pebs_data_cfg;
+
+ pebs_data_cfg = pebs_update_adaptive_cfg(event);
+ /*
+ * Be sure to update the thresholds when we change the record.
+ */
+ if (pebs_data_cfg & ~cpuc->pebs_data_cfg)
+ cpuc->pebs_data_cfg |= pebs_data_cfg | PEBS_UPDATE_DS_SW;
+ }
+}
+
+void intel_pmu_pebs_add(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event *hwc = &event->hw;
+ bool needed_cb = pebs_needs_sched_cb(cpuc);
+
+ cpuc->n_pebs++;
+ if (hwc->flags & PERF_X86_EVENT_LARGE_PEBS)
+ cpuc->n_large_pebs++;
+ if (hwc->flags & PERF_X86_EVENT_PEBS_VIA_PT)
+ cpuc->n_pebs_via_pt++;
+
+ pebs_update_state(needed_cb, cpuc, event, true);
+}
+
+static void intel_pmu_pebs_via_pt_disable(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (!is_pebs_pt(event))
+ return;
+
+ if (!(cpuc->pebs_enabled & ~PEBS_VIA_PT_MASK))
+ cpuc->pebs_enabled &= ~PEBS_VIA_PT_MASK;
+}
+
+static void intel_pmu_pebs_via_pt_enable(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event *hwc = &event->hw;
+ struct debug_store *ds = cpuc->ds;
+ u64 value = ds->pebs_event_reset[hwc->idx];
+ u32 base = MSR_RELOAD_PMC0;
+ unsigned int idx = hwc->idx;
+
+ if (!is_pebs_pt(event))
+ return;
+
+ if (!(event->hw.flags & PERF_X86_EVENT_LARGE_PEBS))
+ cpuc->pebs_enabled |= PEBS_PMI_AFTER_EACH_RECORD;
+
+ cpuc->pebs_enabled |= PEBS_OUTPUT_PT;
+
+ if (hwc->idx >= INTEL_PMC_IDX_FIXED) {
+ base = MSR_RELOAD_FIXED_CTR0;
+ idx = hwc->idx - INTEL_PMC_IDX_FIXED;
+ if (x86_pmu.intel_cap.pebs_format < 5)
+ value = ds->pebs_event_reset[MAX_PEBS_EVENTS_FMT4 + idx];
+ else
+ value = ds->pebs_event_reset[MAX_PEBS_EVENTS + idx];
+ }
+ wrmsrl(base + idx, value);
+}
+
+static inline void intel_pmu_drain_large_pebs(struct cpu_hw_events *cpuc)
+{
+ if (cpuc->n_pebs == cpuc->n_large_pebs &&
+ cpuc->n_pebs != cpuc->n_pebs_via_pt)
+ intel_pmu_drain_pebs_buffer();
+}
+
+void intel_pmu_pebs_enable(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ u64 pebs_data_cfg = cpuc->pebs_data_cfg & ~PEBS_UPDATE_DS_SW;
+ struct hw_perf_event *hwc = &event->hw;
+ struct debug_store *ds = cpuc->ds;
+ unsigned int idx = hwc->idx;
+
+ hwc->config &= ~ARCH_PERFMON_EVENTSEL_INT;
+
+ cpuc->pebs_enabled |= 1ULL << hwc->idx;
+
+ if ((event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT) && (x86_pmu.version < 5))
+ cpuc->pebs_enabled |= 1ULL << (hwc->idx + 32);
+ else if (event->hw.flags & PERF_X86_EVENT_PEBS_ST)
+ cpuc->pebs_enabled |= 1ULL << 63;
+
+ if (x86_pmu.intel_cap.pebs_baseline) {
+ hwc->config |= ICL_EVENTSEL_ADAPTIVE;
+ if (pebs_data_cfg != cpuc->active_pebs_data_cfg) {
+ /*
+ * drain_pebs() assumes uniform record size;
+ * hence we need to drain when changing said
+ * size.
+ */
+ intel_pmu_drain_large_pebs(cpuc);
+ adaptive_pebs_record_size_update();
+ wrmsrl(MSR_PEBS_DATA_CFG, pebs_data_cfg);
+ cpuc->active_pebs_data_cfg = pebs_data_cfg;
+ }
+ }
+ if (cpuc->pebs_data_cfg & PEBS_UPDATE_DS_SW) {
+ cpuc->pebs_data_cfg = pebs_data_cfg;
+ pebs_update_threshold(cpuc);
+ }
+
+ if (idx >= INTEL_PMC_IDX_FIXED) {
+ if (x86_pmu.intel_cap.pebs_format < 5)
+ idx = MAX_PEBS_EVENTS_FMT4 + (idx - INTEL_PMC_IDX_FIXED);
+ else
+ idx = MAX_PEBS_EVENTS + (idx - INTEL_PMC_IDX_FIXED);
+ }
+
+ /*
+ * Use auto-reload if possible to save a MSR write in the PMI.
+ * This must be done in pmu::start(), because PERF_EVENT_IOC_PERIOD.
+ */
+ if (hwc->flags & PERF_X86_EVENT_AUTO_RELOAD) {
+ ds->pebs_event_reset[idx] =
+ (u64)(-hwc->sample_period) & x86_pmu.cntval_mask;
+ } else {
+ ds->pebs_event_reset[idx] = 0;
+ }
+
+ intel_pmu_pebs_via_pt_enable(event);
+}
+
+void intel_pmu_pebs_del(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event *hwc = &event->hw;
+ bool needed_cb = pebs_needs_sched_cb(cpuc);
+
+ cpuc->n_pebs--;
+ if (hwc->flags & PERF_X86_EVENT_LARGE_PEBS)
+ cpuc->n_large_pebs--;
+ if (hwc->flags & PERF_X86_EVENT_PEBS_VIA_PT)
+ cpuc->n_pebs_via_pt--;
+
+ pebs_update_state(needed_cb, cpuc, event, false);
+}
+
+void intel_pmu_pebs_disable(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event *hwc = &event->hw;
+
+ intel_pmu_drain_large_pebs(cpuc);
+
+ cpuc->pebs_enabled &= ~(1ULL << hwc->idx);
+
+ if ((event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT) &&
+ (x86_pmu.version < 5))
+ cpuc->pebs_enabled &= ~(1ULL << (hwc->idx + 32));
+ else if (event->hw.flags & PERF_X86_EVENT_PEBS_ST)
+ cpuc->pebs_enabled &= ~(1ULL << 63);
+
+ intel_pmu_pebs_via_pt_disable(event);
+
+ if (cpuc->enabled)
+ wrmsrl(MSR_IA32_PEBS_ENABLE, cpuc->pebs_enabled);
+
+ hwc->config |= ARCH_PERFMON_EVENTSEL_INT;
+}
+
+void intel_pmu_pebs_enable_all(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (cpuc->pebs_enabled)
+ wrmsrl(MSR_IA32_PEBS_ENABLE, cpuc->pebs_enabled);
+}
+
+void intel_pmu_pebs_disable_all(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (cpuc->pebs_enabled)
+ __intel_pmu_pebs_disable_all();
+}
+
+static int intel_pmu_pebs_fixup_ip(struct pt_regs *regs)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ unsigned long from = cpuc->lbr_entries[0].from;
+ unsigned long old_to, to = cpuc->lbr_entries[0].to;
+ unsigned long ip = regs->ip;
+ int is_64bit = 0;
+ void *kaddr;
+ int size;
+
+ /*
+ * We don't need to fixup if the PEBS assist is fault like
+ */
+ if (!x86_pmu.intel_cap.pebs_trap)
+ return 1;
+
+ /*
+ * No LBR entry, no basic block, no rewinding
+ */
+ if (!cpuc->lbr_stack.nr || !from || !to)
+ return 0;
+
+ /*
+ * Basic blocks should never cross user/kernel boundaries
+ */
+ if (kernel_ip(ip) != kernel_ip(to))
+ return 0;
+
+ /*
+ * unsigned math, either ip is before the start (impossible) or
+ * the basic block is larger than 1 page (sanity)
+ */
+ if ((ip - to) > PEBS_FIXUP_SIZE)
+ return 0;
+
+ /*
+ * We sampled a branch insn, rewind using the LBR stack
+ */
+ if (ip == to) {
+ set_linear_ip(regs, from);
+ return 1;
+ }
+
+ size = ip - to;
+ if (!kernel_ip(ip)) {
+ int bytes;
+ u8 *buf = this_cpu_read(insn_buffer);
+
+ /* 'size' must fit our buffer, see above */
+ bytes = copy_from_user_nmi(buf, (void __user *)to, size);
+ if (bytes != 0)
+ return 0;
+
+ kaddr = buf;
+ } else {
+ kaddr = (void *)to;
+ }
+
+ do {
+ struct insn insn;
+
+ old_to = to;
+
+#ifdef CONFIG_X86_64
+ is_64bit = kernel_ip(to) || any_64bit_mode(regs);
+#endif
+ insn_init(&insn, kaddr, size, is_64bit);
+
+ /*
+ * Make sure there was not a problem decoding the instruction.
+ * This is doubly important because we have an infinite loop if
+ * insn.length=0.
+ */
+ if (insn_get_length(&insn))
+ break;
+
+ to += insn.length;
+ kaddr += insn.length;
+ size -= insn.length;
+ } while (to < ip);
+
+ if (to == ip) {
+ set_linear_ip(regs, old_to);
+ return 1;
+ }
+
+ /*
+ * Even though we decoded the basic block, the instruction stream
+ * never matched the given IP, either the TO or the IP got corrupted.
+ */
+ return 0;
+}
+
+static inline u64 intel_get_tsx_weight(u64 tsx_tuning)
+{
+ if (tsx_tuning) {
+ union hsw_tsx_tuning tsx = { .value = tsx_tuning };
+ return tsx.cycles_last_block;
+ }
+ return 0;
+}
+
+static inline u64 intel_get_tsx_transaction(u64 tsx_tuning, u64 ax)
+{
+ u64 txn = (tsx_tuning & PEBS_HSW_TSX_FLAGS) >> 32;
+
+ /* For RTM XABORTs also log the abort code from AX */
+ if ((txn & PERF_TXN_TRANSACTION) && (ax & 1))
+ txn |= ((ax >> 24) & 0xff) << PERF_TXN_ABORT_SHIFT;
+ return txn;
+}
+
+static inline u64 get_pebs_status(void *n)
+{
+ if (x86_pmu.intel_cap.pebs_format < 4)
+ return ((struct pebs_record_nhm *)n)->status;
+ return ((struct pebs_basic *)n)->applicable_counters;
+}
+
+#define PERF_X86_EVENT_PEBS_HSW_PREC \
+ (PERF_X86_EVENT_PEBS_ST_HSW | \
+ PERF_X86_EVENT_PEBS_LD_HSW | \
+ PERF_X86_EVENT_PEBS_NA_HSW)
+
+static u64 get_data_src(struct perf_event *event, u64 aux)
+{
+ u64 val = PERF_MEM_NA;
+ int fl = event->hw.flags;
+ bool fst = fl & (PERF_X86_EVENT_PEBS_ST | PERF_X86_EVENT_PEBS_HSW_PREC);
+
+ if (fl & PERF_X86_EVENT_PEBS_LDLAT)
+ val = load_latency_data(event, aux);
+ else if (fl & PERF_X86_EVENT_PEBS_STLAT)
+ val = store_latency_data(event, aux);
+ else if (fl & PERF_X86_EVENT_PEBS_LAT_HYBRID)
+ val = x86_pmu.pebs_latency_data(event, aux);
+ else if (fst && (fl & PERF_X86_EVENT_PEBS_HSW_PREC))
+ val = precise_datala_hsw(event, aux);
+ else if (fst)
+ val = precise_store_data(aux);
+ return val;
+}
+
+static void setup_pebs_time(struct perf_event *event,
+ struct perf_sample_data *data,
+ u64 tsc)
+{
+ /* Converting to a user-defined clock is not supported yet. */
+ if (event->attr.use_clockid != 0)
+ return;
+
+ /*
+ * Doesn't support the conversion when the TSC is unstable.
+ * The TSC unstable case is a corner case and very unlikely to
+ * happen. If it happens, the TSC in a PEBS record will be
+ * dropped and fall back to perf_event_clock().
+ */
+ if (!using_native_sched_clock() || !sched_clock_stable())
+ return;
+
+ data->time = native_sched_clock_from_tsc(tsc) + __sched_clock_offset;
+ data->sample_flags |= PERF_SAMPLE_TIME;
+}
+
+#define PERF_SAMPLE_ADDR_TYPE (PERF_SAMPLE_ADDR | \
+ PERF_SAMPLE_PHYS_ADDR | \
+ PERF_SAMPLE_DATA_PAGE_SIZE)
+
+static void setup_pebs_fixed_sample_data(struct perf_event *event,
+ struct pt_regs *iregs, void *__pebs,
+ struct perf_sample_data *data,
+ struct pt_regs *regs)
+{
+ /*
+ * We cast to the biggest pebs_record but are careful not to
+ * unconditionally access the 'extra' entries.
+ */
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct pebs_record_skl *pebs = __pebs;
+ u64 sample_type;
+ int fll;
+
+ if (pebs == NULL)
+ return;
+
+ sample_type = event->attr.sample_type;
+ fll = event->hw.flags & PERF_X86_EVENT_PEBS_LDLAT;
+
+ perf_sample_data_init(data, 0, event->hw.last_period);
+
+ data->period = event->hw.last_period;
+
+ /*
+ * Use latency for weight (only avail with PEBS-LL)
+ */
+ if (fll && (sample_type & PERF_SAMPLE_WEIGHT_TYPE)) {
+ data->weight.full = pebs->lat;
+ data->sample_flags |= PERF_SAMPLE_WEIGHT_TYPE;
+ }
+
+ /*
+ * data.data_src encodes the data source
+ */
+ if (sample_type & PERF_SAMPLE_DATA_SRC) {
+ data->data_src.val = get_data_src(event, pebs->dse);
+ data->sample_flags |= PERF_SAMPLE_DATA_SRC;
+ }
+
+ /*
+ * We must however always use iregs for the unwinder to stay sane; the
+ * record BP,SP,IP can point into thin air when the record is from a
+ * previous PMI context or an (I)RET happened between the record and
+ * PMI.
+ */
+ if (sample_type & PERF_SAMPLE_CALLCHAIN)
+ perf_sample_save_callchain(data, event, iregs);
+
+ /*
+ * We use the interrupt regs as a base because the PEBS record does not
+ * contain a full regs set, specifically it seems to lack segment
+ * descriptors, which get used by things like user_mode().
+ *
+ * In the simple case fix up only the IP for PERF_SAMPLE_IP.
+ */
+ *regs = *iregs;
+
+ /*
+ * Initialize regs_>flags from PEBS,
+ * Clear exact bit (which uses x86 EFLAGS Reserved bit 3),
+ * i.e., do not rely on it being zero:
+ */
+ regs->flags = pebs->flags & ~PERF_EFLAGS_EXACT;
+
+ if (sample_type & PERF_SAMPLE_REGS_INTR) {
+ regs->ax = pebs->ax;
+ regs->bx = pebs->bx;
+ regs->cx = pebs->cx;
+ regs->dx = pebs->dx;
+ regs->si = pebs->si;
+ regs->di = pebs->di;
+
+ regs->bp = pebs->bp;
+ regs->sp = pebs->sp;
+
+#ifndef CONFIG_X86_32
+ regs->r8 = pebs->r8;
+ regs->r9 = pebs->r9;
+ regs->r10 = pebs->r10;
+ regs->r11 = pebs->r11;
+ regs->r12 = pebs->r12;
+ regs->r13 = pebs->r13;
+ regs->r14 = pebs->r14;
+ regs->r15 = pebs->r15;
+#endif
+ }
+
+ if (event->attr.precise_ip > 1) {
+ /*
+ * Haswell and later processors have an 'eventing IP'
+ * (real IP) which fixes the off-by-1 skid in hardware.
+ * Use it when precise_ip >= 2 :
+ */
+ if (x86_pmu.intel_cap.pebs_format >= 2) {
+ set_linear_ip(regs, pebs->real_ip);
+ regs->flags |= PERF_EFLAGS_EXACT;
+ } else {
+ /* Otherwise, use PEBS off-by-1 IP: */
+ set_linear_ip(regs, pebs->ip);
+
+ /*
+ * With precise_ip >= 2, try to fix up the off-by-1 IP
+ * using the LBR. If successful, the fixup function
+ * corrects regs->ip and calls set_linear_ip() on regs:
+ */
+ if (intel_pmu_pebs_fixup_ip(regs))
+ regs->flags |= PERF_EFLAGS_EXACT;
+ }
+ } else {
+ /*
+ * When precise_ip == 1, return the PEBS off-by-1 IP,
+ * no fixup attempted:
+ */
+ set_linear_ip(regs, pebs->ip);
+ }
+
+
+ if ((sample_type & PERF_SAMPLE_ADDR_TYPE) &&
+ x86_pmu.intel_cap.pebs_format >= 1) {
+ data->addr = pebs->dla;
+ data->sample_flags |= PERF_SAMPLE_ADDR;
+ }
+
+ if (x86_pmu.intel_cap.pebs_format >= 2) {
+ /* Only set the TSX weight when no memory weight. */
+ if ((sample_type & PERF_SAMPLE_WEIGHT_TYPE) && !fll) {
+ data->weight.full = intel_get_tsx_weight(pebs->tsx_tuning);
+ data->sample_flags |= PERF_SAMPLE_WEIGHT_TYPE;
+ }
+ if (sample_type & PERF_SAMPLE_TRANSACTION) {
+ data->txn = intel_get_tsx_transaction(pebs->tsx_tuning,
+ pebs->ax);
+ data->sample_flags |= PERF_SAMPLE_TRANSACTION;
+ }
+ }
+
+ /*
+ * v3 supplies an accurate time stamp, so we use that
+ * for the time stamp.
+ *
+ * We can only do this for the default trace clock.
+ */
+ if (x86_pmu.intel_cap.pebs_format >= 3)
+ setup_pebs_time(event, data, pebs->tsc);
+
+ if (has_branch_stack(event))
+ perf_sample_save_brstack(data, event, &cpuc->lbr_stack);
+}
+
+static void adaptive_pebs_save_regs(struct pt_regs *regs,
+ struct pebs_gprs *gprs)
+{
+ regs->ax = gprs->ax;
+ regs->bx = gprs->bx;
+ regs->cx = gprs->cx;
+ regs->dx = gprs->dx;
+ regs->si = gprs->si;
+ regs->di = gprs->di;
+ regs->bp = gprs->bp;
+ regs->sp = gprs->sp;
+#ifndef CONFIG_X86_32
+ regs->r8 = gprs->r8;
+ regs->r9 = gprs->r9;
+ regs->r10 = gprs->r10;
+ regs->r11 = gprs->r11;
+ regs->r12 = gprs->r12;
+ regs->r13 = gprs->r13;
+ regs->r14 = gprs->r14;
+ regs->r15 = gprs->r15;
+#endif
+}
+
+#define PEBS_LATENCY_MASK 0xffff
+#define PEBS_CACHE_LATENCY_OFFSET 32
+#define PEBS_RETIRE_LATENCY_OFFSET 32
+
+/*
+ * With adaptive PEBS the layout depends on what fields are configured.
+ */
+
+static void setup_pebs_adaptive_sample_data(struct perf_event *event,
+ struct pt_regs *iregs, void *__pebs,
+ struct perf_sample_data *data,
+ struct pt_regs *regs)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct pebs_basic *basic = __pebs;
+ void *next_record = basic + 1;
+ u64 sample_type;
+ u64 format_size;
+ struct pebs_meminfo *meminfo = NULL;
+ struct pebs_gprs *gprs = NULL;
+ struct x86_perf_regs *perf_regs;
+
+ if (basic == NULL)
+ return;
+
+ perf_regs = container_of(regs, struct x86_perf_regs, regs);
+ perf_regs->xmm_regs = NULL;
+
+ sample_type = event->attr.sample_type;
+ format_size = basic->format_size;
+ perf_sample_data_init(data, 0, event->hw.last_period);
+ data->period = event->hw.last_period;
+
+ setup_pebs_time(event, data, basic->tsc);
+
+ /*
+ * We must however always use iregs for the unwinder to stay sane; the
+ * record BP,SP,IP can point into thin air when the record is from a
+ * previous PMI context or an (I)RET happened between the record and
+ * PMI.
+ */
+ if (sample_type & PERF_SAMPLE_CALLCHAIN)
+ perf_sample_save_callchain(data, event, iregs);
+
+ *regs = *iregs;
+ /* The ip in basic is EventingIP */
+ set_linear_ip(regs, basic->ip);
+ regs->flags = PERF_EFLAGS_EXACT;
+
+ if ((sample_type & PERF_SAMPLE_WEIGHT_STRUCT) && (x86_pmu.flags & PMU_FL_RETIRE_LATENCY))
+ data->weight.var3_w = format_size >> PEBS_RETIRE_LATENCY_OFFSET & PEBS_LATENCY_MASK;
+
+ /*
+ * The record for MEMINFO is in front of GP
+ * But PERF_SAMPLE_TRANSACTION needs gprs->ax.
+ * Save the pointer here but process later.
+ */
+ if (format_size & PEBS_DATACFG_MEMINFO) {
+ meminfo = next_record;
+ next_record = meminfo + 1;
+ }
+
+ if (format_size & PEBS_DATACFG_GP) {
+ gprs = next_record;
+ next_record = gprs + 1;
+
+ if (event->attr.precise_ip < 2) {
+ set_linear_ip(regs, gprs->ip);
+ regs->flags &= ~PERF_EFLAGS_EXACT;
+ }
+
+ if (sample_type & PERF_SAMPLE_REGS_INTR)
+ adaptive_pebs_save_regs(regs, gprs);
+ }
+
+ if (format_size & PEBS_DATACFG_MEMINFO) {
+ if (sample_type & PERF_SAMPLE_WEIGHT_TYPE) {
+ u64 weight = meminfo->latency;
+
+ if (x86_pmu.flags & PMU_FL_INSTR_LATENCY) {
+ data->weight.var2_w = weight & PEBS_LATENCY_MASK;
+ weight >>= PEBS_CACHE_LATENCY_OFFSET;
+ }
+
+ /*
+ * Although meminfo::latency is defined as a u64,
+ * only the lower 32 bits include the valid data
+ * in practice on Ice Lake and earlier platforms.
+ */
+ if (sample_type & PERF_SAMPLE_WEIGHT) {
+ data->weight.full = weight ?:
+ intel_get_tsx_weight(meminfo->tsx_tuning);
+ } else {
+ data->weight.var1_dw = (u32)(weight & PEBS_LATENCY_MASK) ?:
+ intel_get_tsx_weight(meminfo->tsx_tuning);
+ }
+ data->sample_flags |= PERF_SAMPLE_WEIGHT_TYPE;
+ }
+
+ if (sample_type & PERF_SAMPLE_DATA_SRC) {
+ data->data_src.val = get_data_src(event, meminfo->aux);
+ data->sample_flags |= PERF_SAMPLE_DATA_SRC;
+ }
+
+ if (sample_type & PERF_SAMPLE_ADDR_TYPE) {
+ data->addr = meminfo->address;
+ data->sample_flags |= PERF_SAMPLE_ADDR;
+ }
+
+ if (sample_type & PERF_SAMPLE_TRANSACTION) {
+ data->txn = intel_get_tsx_transaction(meminfo->tsx_tuning,
+ gprs ? gprs->ax : 0);
+ data->sample_flags |= PERF_SAMPLE_TRANSACTION;
+ }
+ }
+
+ if (format_size & PEBS_DATACFG_XMMS) {
+ struct pebs_xmm *xmm = next_record;
+
+ next_record = xmm + 1;
+ perf_regs->xmm_regs = xmm->xmm;
+ }
+
+ if (format_size & PEBS_DATACFG_LBRS) {
+ struct lbr_entry *lbr = next_record;
+ int num_lbr = ((format_size >> PEBS_DATACFG_LBR_SHIFT)
+ & 0xff) + 1;
+ next_record = next_record + num_lbr * sizeof(struct lbr_entry);
+
+ if (has_branch_stack(event)) {
+ intel_pmu_store_pebs_lbrs(lbr);
+ perf_sample_save_brstack(data, event, &cpuc->lbr_stack);
+ }
+ }
+
+ WARN_ONCE(next_record != __pebs + (format_size >> 48),
+ "PEBS record size %llu, expected %llu, config %llx\n",
+ format_size >> 48,
+ (u64)(next_record - __pebs),
+ basic->format_size);
+}
+
+static inline void *
+get_next_pebs_record_by_bit(void *base, void *top, int bit)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ void *at;
+ u64 pebs_status;
+
+ /*
+ * fmt0 does not have a status bitfield (does not use
+ * perf_record_nhm format)
+ */
+ if (x86_pmu.intel_cap.pebs_format < 1)
+ return base;
+
+ if (base == NULL)
+ return NULL;
+
+ for (at = base; at < top; at += cpuc->pebs_record_size) {
+ unsigned long status = get_pebs_status(at);
+
+ if (test_bit(bit, (unsigned long *)&status)) {
+ /* PEBS v3 has accurate status bits */
+ if (x86_pmu.intel_cap.pebs_format >= 3)
+ return at;
+
+ if (status == (1 << bit))
+ return at;
+
+ /* clear non-PEBS bit and re-check */
+ pebs_status = status & cpuc->pebs_enabled;
+ pebs_status &= PEBS_COUNTER_MASK;
+ if (pebs_status == (1 << bit))
+ return at;
+ }
+ }
+ return NULL;
+}
+
+void intel_pmu_auto_reload_read(struct perf_event *event)
+{
+ WARN_ON(!(event->hw.flags & PERF_X86_EVENT_AUTO_RELOAD));
+
+ perf_pmu_disable(event->pmu);
+ intel_pmu_drain_pebs_buffer();
+ perf_pmu_enable(event->pmu);
+}
+
+/*
+ * Special variant of intel_pmu_save_and_restart() for auto-reload.
+ */
+static int
+intel_pmu_save_and_restart_reload(struct perf_event *event, int count)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ int shift = 64 - x86_pmu.cntval_bits;
+ u64 period = hwc->sample_period;
+ u64 prev_raw_count, new_raw_count;
+ s64 new, old;
+
+ WARN_ON(!period);
+
+ /*
+ * drain_pebs() only happens when the PMU is disabled.
+ */
+ WARN_ON(this_cpu_read(cpu_hw_events.enabled));
+
+ prev_raw_count = local64_read(&hwc->prev_count);
+ rdpmcl(hwc->event_base_rdpmc, new_raw_count);
+ local64_set(&hwc->prev_count, new_raw_count);
+
+ /*
+ * Since the counter increments a negative counter value and
+ * overflows on the sign switch, giving the interval:
+ *
+ * [-period, 0]
+ *
+ * the difference between two consecutive reads is:
+ *
+ * A) value2 - value1;
+ * when no overflows have happened in between,
+ *
+ * B) (0 - value1) + (value2 - (-period));
+ * when one overflow happened in between,
+ *
+ * C) (0 - value1) + (n - 1) * (period) + (value2 - (-period));
+ * when @n overflows happened in between.
+ *
+ * Here A) is the obvious difference, B) is the extension to the
+ * discrete interval, where the first term is to the top of the
+ * interval and the second term is from the bottom of the next
+ * interval and C) the extension to multiple intervals, where the
+ * middle term is the whole intervals covered.
+ *
+ * An equivalent of C, by reduction, is:
+ *
+ * value2 - value1 + n * period
+ */
+ new = ((s64)(new_raw_count << shift) >> shift);
+ old = ((s64)(prev_raw_count << shift) >> shift);
+ local64_add(new - old + count * period, &event->count);
+
+ local64_set(&hwc->period_left, -new);
+
+ perf_event_update_userpage(event);
+
+ return 0;
+}
+
+static __always_inline void
+__intel_pmu_pebs_event(struct perf_event *event,
+ struct pt_regs *iregs,
+ struct perf_sample_data *data,
+ void *base, void *top,
+ int bit, int count,
+ void (*setup_sample)(struct perf_event *,
+ struct pt_regs *,
+ void *,
+ struct perf_sample_data *,
+ struct pt_regs *))
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct hw_perf_event *hwc = &event->hw;
+ struct x86_perf_regs perf_regs;
+ struct pt_regs *regs = &perf_regs.regs;
+ void *at = get_next_pebs_record_by_bit(base, top, bit);
+ static struct pt_regs dummy_iregs;
+
+ if (hwc->flags & PERF_X86_EVENT_AUTO_RELOAD) {
+ /*
+ * Now, auto-reload is only enabled in fixed period mode.
+ * The reload value is always hwc->sample_period.
+ * May need to change it, if auto-reload is enabled in
+ * freq mode later.
+ */
+ intel_pmu_save_and_restart_reload(event, count);
+ } else if (!intel_pmu_save_and_restart(event))
+ return;
+
+ if (!iregs)
+ iregs = &dummy_iregs;
+
+ while (count > 1) {
+ setup_sample(event, iregs, at, data, regs);
+ perf_event_output(event, data, regs);
+ at += cpuc->pebs_record_size;
+ at = get_next_pebs_record_by_bit(at, top, bit);
+ count--;
+ }
+
+ setup_sample(event, iregs, at, data, regs);
+ if (iregs == &dummy_iregs) {
+ /*
+ * The PEBS records may be drained in the non-overflow context,
+ * e.g., large PEBS + context switch. Perf should treat the
+ * last record the same as other PEBS records, and doesn't
+ * invoke the generic overflow handler.
+ */
+ perf_event_output(event, data, regs);
+ } else {
+ /*
+ * All but the last records are processed.
+ * The last one is left to be able to call the overflow handler.
+ */
+ if (perf_event_overflow(event, data, regs))
+ x86_pmu_stop(event, 0);
+ }
+}
+
+static void intel_pmu_drain_pebs_core(struct pt_regs *iregs, struct perf_sample_data *data)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct debug_store *ds = cpuc->ds;
+ struct perf_event *event = cpuc->events[0]; /* PMC0 only */
+ struct pebs_record_core *at, *top;
+ int n;
+
+ if (!x86_pmu.pebs_active)
+ return;
+
+ at = (struct pebs_record_core *)(unsigned long)ds->pebs_buffer_base;
+ top = (struct pebs_record_core *)(unsigned long)ds->pebs_index;
+
+ /*
+ * Whatever else happens, drain the thing
+ */
+ ds->pebs_index = ds->pebs_buffer_base;
+
+ if (!test_bit(0, cpuc->active_mask))
+ return;
+
+ WARN_ON_ONCE(!event);
+
+ if (!event->attr.precise_ip)
+ return;
+
+ n = top - at;
+ if (n <= 0) {
+ if (event->hw.flags & PERF_X86_EVENT_AUTO_RELOAD)
+ intel_pmu_save_and_restart_reload(event, 0);
+ return;
+ }
+
+ __intel_pmu_pebs_event(event, iregs, data, at, top, 0, n,
+ setup_pebs_fixed_sample_data);
+}
+
+static void intel_pmu_pebs_event_update_no_drain(struct cpu_hw_events *cpuc, int size)
+{
+ struct perf_event *event;
+ int bit;
+
+ /*
+ * The drain_pebs() could be called twice in a short period
+ * for auto-reload event in pmu::read(). There are no
+ * overflows have happened in between.
+ * It needs to call intel_pmu_save_and_restart_reload() to
+ * update the event->count for this case.
+ */
+ for_each_set_bit(bit, (unsigned long *)&cpuc->pebs_enabled, size) {
+ event = cpuc->events[bit];
+ if (event->hw.flags & PERF_X86_EVENT_AUTO_RELOAD)
+ intel_pmu_save_and_restart_reload(event, 0);
+ }
+}
+
+static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs, struct perf_sample_data *data)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct debug_store *ds = cpuc->ds;
+ struct perf_event *event;
+ void *base, *at, *top;
+ short counts[INTEL_PMC_IDX_FIXED + MAX_FIXED_PEBS_EVENTS] = {};
+ short error[INTEL_PMC_IDX_FIXED + MAX_FIXED_PEBS_EVENTS] = {};
+ int bit, i, size;
+ u64 mask;
+
+ if (!x86_pmu.pebs_active)
+ return;
+
+ base = (struct pebs_record_nhm *)(unsigned long)ds->pebs_buffer_base;
+ top = (struct pebs_record_nhm *)(unsigned long)ds->pebs_index;
+
+ ds->pebs_index = ds->pebs_buffer_base;
+
+ mask = (1ULL << x86_pmu.max_pebs_events) - 1;
+ size = x86_pmu.max_pebs_events;
+ if (x86_pmu.flags & PMU_FL_PEBS_ALL) {
+ mask |= ((1ULL << x86_pmu.num_counters_fixed) - 1) << INTEL_PMC_IDX_FIXED;
+ size = INTEL_PMC_IDX_FIXED + x86_pmu.num_counters_fixed;
+ }
+
+ if (unlikely(base >= top)) {
+ intel_pmu_pebs_event_update_no_drain(cpuc, size);
+ return;
+ }
+
+ for (at = base; at < top; at += x86_pmu.pebs_record_size) {
+ struct pebs_record_nhm *p = at;
+ u64 pebs_status;
+
+ pebs_status = p->status & cpuc->pebs_enabled;
+ pebs_status &= mask;
+
+ /* PEBS v3 has more accurate status bits */
+ if (x86_pmu.intel_cap.pebs_format >= 3) {
+ for_each_set_bit(bit, (unsigned long *)&pebs_status, size)
+ counts[bit]++;
+
+ continue;
+ }
+
+ /*
+ * On some CPUs the PEBS status can be zero when PEBS is
+ * racing with clearing of GLOBAL_STATUS.
+ *
+ * Normally we would drop that record, but in the
+ * case when there is only a single active PEBS event
+ * we can assume it's for that event.
+ */
+ if (!pebs_status && cpuc->pebs_enabled &&
+ !(cpuc->pebs_enabled & (cpuc->pebs_enabled-1)))
+ pebs_status = p->status = cpuc->pebs_enabled;
+
+ bit = find_first_bit((unsigned long *)&pebs_status,
+ x86_pmu.max_pebs_events);
+ if (bit >= x86_pmu.max_pebs_events)
+ continue;
+
+ /*
+ * The PEBS hardware does not deal well with the situation
+ * when events happen near to each other and multiple bits
+ * are set. But it should happen rarely.
+ *
+ * If these events include one PEBS and multiple non-PEBS
+ * events, it doesn't impact PEBS record. The record will
+ * be handled normally. (slow path)
+ *
+ * If these events include two or more PEBS events, the
+ * records for the events can be collapsed into a single
+ * one, and it's not possible to reconstruct all events
+ * that caused the PEBS record. It's called collision.
+ * If collision happened, the record will be dropped.
+ */
+ if (pebs_status != (1ULL << bit)) {
+ for_each_set_bit(i, (unsigned long *)&pebs_status, size)
+ error[i]++;
+ continue;
+ }
+
+ counts[bit]++;
+ }
+
+ for_each_set_bit(bit, (unsigned long *)&mask, size) {
+ if ((counts[bit] == 0) && (error[bit] == 0))
+ continue;
+
+ event = cpuc->events[bit];
+ if (WARN_ON_ONCE(!event))
+ continue;
+
+ if (WARN_ON_ONCE(!event->attr.precise_ip))
+ continue;
+
+ /* log dropped samples number */
+ if (error[bit]) {
+ perf_log_lost_samples(event, error[bit]);
+
+ if (iregs && perf_event_account_interrupt(event))
+ x86_pmu_stop(event, 0);
+ }
+
+ if (counts[bit]) {
+ __intel_pmu_pebs_event(event, iregs, data, base,
+ top, bit, counts[bit],
+ setup_pebs_fixed_sample_data);
+ }
+ }
+}
+
+static void intel_pmu_drain_pebs_icl(struct pt_regs *iregs, struct perf_sample_data *data)
+{
+ short counts[INTEL_PMC_IDX_FIXED + MAX_FIXED_PEBS_EVENTS] = {};
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ int max_pebs_events = hybrid(cpuc->pmu, max_pebs_events);
+ int num_counters_fixed = hybrid(cpuc->pmu, num_counters_fixed);
+ struct debug_store *ds = cpuc->ds;
+ struct perf_event *event;
+ void *base, *at, *top;
+ int bit, size;
+ u64 mask;
+
+ if (!x86_pmu.pebs_active)
+ return;
+
+ base = (struct pebs_basic *)(unsigned long)ds->pebs_buffer_base;
+ top = (struct pebs_basic *)(unsigned long)ds->pebs_index;
+
+ ds->pebs_index = ds->pebs_buffer_base;
+
+ mask = ((1ULL << max_pebs_events) - 1) |
+ (((1ULL << num_counters_fixed) - 1) << INTEL_PMC_IDX_FIXED);
+ size = INTEL_PMC_IDX_FIXED + num_counters_fixed;
+
+ if (unlikely(base >= top)) {
+ intel_pmu_pebs_event_update_no_drain(cpuc, size);
+ return;
+ }
+
+ for (at = base; at < top; at += cpuc->pebs_record_size) {
+ u64 pebs_status;
+
+ pebs_status = get_pebs_status(at) & cpuc->pebs_enabled;
+ pebs_status &= mask;
+
+ for_each_set_bit(bit, (unsigned long *)&pebs_status, size)
+ counts[bit]++;
+ }
+
+ for_each_set_bit(bit, (unsigned long *)&mask, size) {
+ if (counts[bit] == 0)
+ continue;
+
+ event = cpuc->events[bit];
+ if (WARN_ON_ONCE(!event))
+ continue;
+
+ if (WARN_ON_ONCE(!event->attr.precise_ip))
+ continue;
+
+ __intel_pmu_pebs_event(event, iregs, data, base,
+ top, bit, counts[bit],
+ setup_pebs_adaptive_sample_data);
+ }
+}
+
+/*
+ * BTS, PEBS probe and setup
+ */
+
+void __init intel_ds_init(void)
+{
+ /*
+ * No support for 32bit formats
+ */
+ if (!boot_cpu_has(X86_FEATURE_DTES64))
+ return;
+
+ x86_pmu.bts = boot_cpu_has(X86_FEATURE_BTS);
+ x86_pmu.pebs = boot_cpu_has(X86_FEATURE_PEBS);
+ x86_pmu.pebs_buffer_size = PEBS_BUFFER_SIZE;
+ if (x86_pmu.version <= 4)
+ x86_pmu.pebs_no_isolation = 1;
+
+ if (x86_pmu.pebs) {
+ char pebs_type = x86_pmu.intel_cap.pebs_trap ? '+' : '-';
+ char *pebs_qual = "";
+ int format = x86_pmu.intel_cap.pebs_format;
+
+ if (format < 4)
+ x86_pmu.intel_cap.pebs_baseline = 0;
+
+ switch (format) {
+ case 0:
+ pr_cont("PEBS fmt0%c, ", pebs_type);
+ x86_pmu.pebs_record_size = sizeof(struct pebs_record_core);
+ /*
+ * Using >PAGE_SIZE buffers makes the WRMSR to
+ * PERF_GLOBAL_CTRL in intel_pmu_enable_all()
+ * mysteriously hang on Core2.
+ *
+ * As a workaround, we don't do this.
+ */
+ x86_pmu.pebs_buffer_size = PAGE_SIZE;
+ x86_pmu.drain_pebs = intel_pmu_drain_pebs_core;
+ break;
+
+ case 1:
+ pr_cont("PEBS fmt1%c, ", pebs_type);
+ x86_pmu.pebs_record_size = sizeof(struct pebs_record_nhm);
+ x86_pmu.drain_pebs = intel_pmu_drain_pebs_nhm;
+ break;
+
+ case 2:
+ pr_cont("PEBS fmt2%c, ", pebs_type);
+ x86_pmu.pebs_record_size = sizeof(struct pebs_record_hsw);
+ x86_pmu.drain_pebs = intel_pmu_drain_pebs_nhm;
+ break;
+
+ case 3:
+ pr_cont("PEBS fmt3%c, ", pebs_type);
+ x86_pmu.pebs_record_size =
+ sizeof(struct pebs_record_skl);
+ x86_pmu.drain_pebs = intel_pmu_drain_pebs_nhm;
+ x86_pmu.large_pebs_flags |= PERF_SAMPLE_TIME;
+ break;
+
+ case 5:
+ x86_pmu.pebs_ept = 1;
+ fallthrough;
+ case 4:
+ x86_pmu.drain_pebs = intel_pmu_drain_pebs_icl;
+ x86_pmu.pebs_record_size = sizeof(struct pebs_basic);
+ if (x86_pmu.intel_cap.pebs_baseline) {
+ x86_pmu.large_pebs_flags |=
+ PERF_SAMPLE_BRANCH_STACK |
+ PERF_SAMPLE_TIME;
+ x86_pmu.flags |= PMU_FL_PEBS_ALL;
+ x86_pmu.pebs_capable = ~0ULL;
+ pebs_qual = "-baseline";
+ x86_get_pmu(smp_processor_id())->capabilities |= PERF_PMU_CAP_EXTENDED_REGS;
+ } else {
+ /* Only basic record supported */
+ x86_pmu.large_pebs_flags &=
+ ~(PERF_SAMPLE_ADDR |
+ PERF_SAMPLE_TIME |
+ PERF_SAMPLE_DATA_SRC |
+ PERF_SAMPLE_TRANSACTION |
+ PERF_SAMPLE_REGS_USER |
+ PERF_SAMPLE_REGS_INTR);
+ }
+ pr_cont("PEBS fmt4%c%s, ", pebs_type, pebs_qual);
+
+ if (!is_hybrid() && x86_pmu.intel_cap.pebs_output_pt_available) {
+ pr_cont("PEBS-via-PT, ");
+ x86_get_pmu(smp_processor_id())->capabilities |= PERF_PMU_CAP_AUX_OUTPUT;
+ }
+
+ break;
+
+ default:
+ pr_cont("no PEBS fmt%d%c, ", format, pebs_type);
+ x86_pmu.pebs = 0;
+ }
+ }
+}
+
+void perf_restore_debug_store(void)
+{
+ struct debug_store *ds = __this_cpu_read(cpu_hw_events.ds);
+
+ if (!x86_pmu.bts && !x86_pmu.pebs)
+ return;
+
+ wrmsrl(MSR_IA32_DS_AREA, (unsigned long)ds);
+}
diff --git a/arch/x86/events/intel/knc.c b/arch/x86/events/intel/knc.c
new file mode 100644
index 000000000000..618001c208e8
--- /dev/null
+++ b/arch/x86/events/intel/knc.c
@@ -0,0 +1,322 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Driver for Intel Xeon Phi "Knights Corner" PMU */
+
+#include <linux/perf_event.h>
+#include <linux/types.h>
+
+#include <asm/hardirq.h>
+
+#include "../perf_event.h"
+
+static const u64 knc_perfmon_event_map[] =
+{
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x002a,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x0016,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0028,
+ [PERF_COUNT_HW_CACHE_MISSES] = 0x0029,
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x0012,
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x002b,
+};
+
+static const u64 __initconst knc_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D) ] = {
+ [ C(OP_READ) ] = {
+ /* On Xeon Phi event "0" is a valid DATA_READ */
+ /* (L1 Data Cache Reads) Instruction. */
+ /* We code this as ARCH_PERFMON_EVENTSEL_INT as this */
+ /* bit will always be set in x86_pmu_hw_config(). */
+ [ C(RESULT_ACCESS) ] = ARCH_PERFMON_EVENTSEL_INT,
+ /* DATA_READ */
+ [ C(RESULT_MISS) ] = 0x0003, /* DATA_READ_MISS */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0001, /* DATA_WRITE */
+ [ C(RESULT_MISS) ] = 0x0004, /* DATA_WRITE_MISS */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0011, /* L1_DATA_PF1 */
+ [ C(RESULT_MISS) ] = 0x001c, /* L1_DATA_PF1_MISS */
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x000c, /* CODE_READ */
+ [ C(RESULT_MISS) ] = 0x000e, /* CODE_CACHE_MISS */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0x10cb, /* L2_READ_MISS */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x10cc, /* L2_WRITE_HIT */
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x10fc, /* L2_DATA_PF2 */
+ [ C(RESULT_MISS) ] = 0x10fe, /* L2_DATA_PF2_MISS */
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = ARCH_PERFMON_EVENTSEL_INT,
+ /* DATA_READ */
+ /* see note on L1 OP_READ */
+ [ C(RESULT_MISS) ] = 0x0002, /* DATA_PAGE_WALK */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0001, /* DATA_WRITE */
+ [ C(RESULT_MISS) ] = 0x0002, /* DATA_PAGE_WALK */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0,
+ [ C(RESULT_MISS) ] = 0x0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x000c, /* CODE_READ */
+ [ C(RESULT_MISS) ] = 0x000d, /* CODE_PAGE_WALK */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0012, /* BRANCHES */
+ [ C(RESULT_MISS) ] = 0x002b, /* BRANCHES_MISPREDICTED */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+};
+
+
+static u64 knc_pmu_event_map(int hw_event)
+{
+ return knc_perfmon_event_map[hw_event];
+}
+
+static struct event_constraint knc_event_constraints[] =
+{
+ INTEL_EVENT_CONSTRAINT(0xc3, 0x1), /* HWP_L2HIT */
+ INTEL_EVENT_CONSTRAINT(0xc4, 0x1), /* HWP_L2MISS */
+ INTEL_EVENT_CONSTRAINT(0xc8, 0x1), /* L2_READ_HIT_E */
+ INTEL_EVENT_CONSTRAINT(0xc9, 0x1), /* L2_READ_HIT_M */
+ INTEL_EVENT_CONSTRAINT(0xca, 0x1), /* L2_READ_HIT_S */
+ INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* L2_READ_MISS */
+ INTEL_EVENT_CONSTRAINT(0xcc, 0x1), /* L2_WRITE_HIT */
+ INTEL_EVENT_CONSTRAINT(0xce, 0x1), /* L2_STRONGLY_ORDERED_STREAMING_VSTORES_MISS */
+ INTEL_EVENT_CONSTRAINT(0xcf, 0x1), /* L2_WEAKLY_ORDERED_STREAMING_VSTORE_MISS */
+ INTEL_EVENT_CONSTRAINT(0xd7, 0x1), /* L2_VICTIM_REQ_WITH_DATA */
+ INTEL_EVENT_CONSTRAINT(0xe3, 0x1), /* SNP_HITM_BUNIT */
+ INTEL_EVENT_CONSTRAINT(0xe6, 0x1), /* SNP_HIT_L2 */
+ INTEL_EVENT_CONSTRAINT(0xe7, 0x1), /* SNP_HITM_L2 */
+ INTEL_EVENT_CONSTRAINT(0xf1, 0x1), /* L2_DATA_READ_MISS_CACHE_FILL */
+ INTEL_EVENT_CONSTRAINT(0xf2, 0x1), /* L2_DATA_WRITE_MISS_CACHE_FILL */
+ INTEL_EVENT_CONSTRAINT(0xf6, 0x1), /* L2_DATA_READ_MISS_MEM_FILL */
+ INTEL_EVENT_CONSTRAINT(0xf7, 0x1), /* L2_DATA_WRITE_MISS_MEM_FILL */
+ INTEL_EVENT_CONSTRAINT(0xfc, 0x1), /* L2_DATA_PF2 */
+ INTEL_EVENT_CONSTRAINT(0xfd, 0x1), /* L2_DATA_PF2_DROP */
+ INTEL_EVENT_CONSTRAINT(0xfe, 0x1), /* L2_DATA_PF2_MISS */
+ INTEL_EVENT_CONSTRAINT(0xff, 0x1), /* L2_DATA_HIT_INFLIGHT_PF2 */
+ EVENT_CONSTRAINT_END
+};
+
+#define MSR_KNC_IA32_PERF_GLOBAL_STATUS 0x0000002d
+#define MSR_KNC_IA32_PERF_GLOBAL_OVF_CONTROL 0x0000002e
+#define MSR_KNC_IA32_PERF_GLOBAL_CTRL 0x0000002f
+
+#define KNC_ENABLE_COUNTER0 0x00000001
+#define KNC_ENABLE_COUNTER1 0x00000002
+
+static void knc_pmu_disable_all(void)
+{
+ u64 val;
+
+ rdmsrl(MSR_KNC_IA32_PERF_GLOBAL_CTRL, val);
+ val &= ~(KNC_ENABLE_COUNTER0|KNC_ENABLE_COUNTER1);
+ wrmsrl(MSR_KNC_IA32_PERF_GLOBAL_CTRL, val);
+}
+
+static void knc_pmu_enable_all(int added)
+{
+ u64 val;
+
+ rdmsrl(MSR_KNC_IA32_PERF_GLOBAL_CTRL, val);
+ val |= (KNC_ENABLE_COUNTER0|KNC_ENABLE_COUNTER1);
+ wrmsrl(MSR_KNC_IA32_PERF_GLOBAL_CTRL, val);
+}
+
+static inline void
+knc_pmu_disable_event(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ u64 val;
+
+ val = hwc->config;
+ val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
+
+ (void)wrmsrl_safe(hwc->config_base + hwc->idx, val);
+}
+
+static void knc_pmu_enable_event(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ u64 val;
+
+ val = hwc->config;
+ val |= ARCH_PERFMON_EVENTSEL_ENABLE;
+
+ (void)wrmsrl_safe(hwc->config_base + hwc->idx, val);
+}
+
+static inline u64 knc_pmu_get_status(void)
+{
+ u64 status;
+
+ rdmsrl(MSR_KNC_IA32_PERF_GLOBAL_STATUS, status);
+
+ return status;
+}
+
+static inline void knc_pmu_ack_status(u64 ack)
+{
+ wrmsrl(MSR_KNC_IA32_PERF_GLOBAL_OVF_CONTROL, ack);
+}
+
+static int knc_pmu_handle_irq(struct pt_regs *regs)
+{
+ struct perf_sample_data data;
+ struct cpu_hw_events *cpuc;
+ int handled = 0;
+ int bit, loops;
+ u64 status;
+
+ cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ knc_pmu_disable_all();
+
+ status = knc_pmu_get_status();
+ if (!status) {
+ knc_pmu_enable_all(0);
+ return handled;
+ }
+
+ loops = 0;
+again:
+ knc_pmu_ack_status(status);
+ if (++loops > 100) {
+ WARN_ONCE(1, "perf: irq loop stuck!\n");
+ perf_event_print_debug();
+ goto done;
+ }
+
+ inc_irq_stat(apic_perf_irqs);
+
+ for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) {
+ struct perf_event *event = cpuc->events[bit];
+
+ handled++;
+
+ if (!test_bit(bit, cpuc->active_mask))
+ continue;
+
+ if (!intel_pmu_save_and_restart(event))
+ continue;
+
+ perf_sample_data_init(&data, 0, event->hw.last_period);
+
+ if (perf_event_overflow(event, &data, regs))
+ x86_pmu_stop(event, 0);
+ }
+
+ /*
+ * Repeat if there is more work to be done:
+ */
+ status = knc_pmu_get_status();
+ if (status)
+ goto again;
+
+done:
+ /* Only restore PMU state when it's active. See x86_pmu_disable(). */
+ if (cpuc->enabled)
+ knc_pmu_enable_all(0);
+
+ return handled;
+}
+
+
+PMU_FORMAT_ATTR(event, "config:0-7" );
+PMU_FORMAT_ATTR(umask, "config:8-15" );
+PMU_FORMAT_ATTR(edge, "config:18" );
+PMU_FORMAT_ATTR(inv, "config:23" );
+PMU_FORMAT_ATTR(cmask, "config:24-31" );
+
+static struct attribute *intel_knc_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_cmask.attr,
+ NULL,
+};
+
+static const struct x86_pmu knc_pmu __initconst = {
+ .name = "knc",
+ .handle_irq = knc_pmu_handle_irq,
+ .disable_all = knc_pmu_disable_all,
+ .enable_all = knc_pmu_enable_all,
+ .enable = knc_pmu_enable_event,
+ .disable = knc_pmu_disable_event,
+ .hw_config = x86_pmu_hw_config,
+ .schedule_events = x86_schedule_events,
+ .eventsel = MSR_KNC_EVNTSEL0,
+ .perfctr = MSR_KNC_PERFCTR0,
+ .event_map = knc_pmu_event_map,
+ .max_events = ARRAY_SIZE(knc_perfmon_event_map),
+ .apic = 1,
+ .max_period = (1ULL << 39) - 1,
+ .version = 0,
+ .num_counters = 2,
+ .cntval_bits = 40,
+ .cntval_mask = (1ULL << 40) - 1,
+ .get_event_constraints = x86_get_event_constraints,
+ .event_constraints = knc_event_constraints,
+ .format_attrs = intel_knc_formats_attr,
+};
+
+__init int knc_pmu_init(void)
+{
+ x86_pmu = knc_pmu;
+
+ memcpy(hw_cache_event_ids, knc_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+
+ return 0;
+}
diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c
new file mode 100644
index 000000000000..c3b0d15a9841
--- /dev/null
+++ b/arch/x86/events/intel/lbr.c
@@ -0,0 +1,1618 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/perf_event.h>
+#include <linux/types.h>
+
+#include <asm/perf_event.h>
+#include <asm/msr.h>
+
+#include "../perf_event.h"
+
+/*
+ * Intel LBR_SELECT bits
+ * Intel Vol3a, April 2011, Section 16.7 Table 16-10
+ *
+ * Hardware branch filter (not available on all CPUs)
+ */
+#define LBR_KERNEL_BIT 0 /* do not capture at ring0 */
+#define LBR_USER_BIT 1 /* do not capture at ring > 0 */
+#define LBR_JCC_BIT 2 /* do not capture conditional branches */
+#define LBR_REL_CALL_BIT 3 /* do not capture relative calls */
+#define LBR_IND_CALL_BIT 4 /* do not capture indirect calls */
+#define LBR_RETURN_BIT 5 /* do not capture near returns */
+#define LBR_IND_JMP_BIT 6 /* do not capture indirect jumps */
+#define LBR_REL_JMP_BIT 7 /* do not capture relative jumps */
+#define LBR_FAR_BIT 8 /* do not capture far branches */
+#define LBR_CALL_STACK_BIT 9 /* enable call stack */
+
+/*
+ * Following bit only exists in Linux; we mask it out before writing it to
+ * the actual MSR. But it helps the constraint perf code to understand
+ * that this is a separate configuration.
+ */
+#define LBR_NO_INFO_BIT 63 /* don't read LBR_INFO. */
+
+#define LBR_KERNEL (1 << LBR_KERNEL_BIT)
+#define LBR_USER (1 << LBR_USER_BIT)
+#define LBR_JCC (1 << LBR_JCC_BIT)
+#define LBR_REL_CALL (1 << LBR_REL_CALL_BIT)
+#define LBR_IND_CALL (1 << LBR_IND_CALL_BIT)
+#define LBR_RETURN (1 << LBR_RETURN_BIT)
+#define LBR_REL_JMP (1 << LBR_REL_JMP_BIT)
+#define LBR_IND_JMP (1 << LBR_IND_JMP_BIT)
+#define LBR_FAR (1 << LBR_FAR_BIT)
+#define LBR_CALL_STACK (1 << LBR_CALL_STACK_BIT)
+#define LBR_NO_INFO (1ULL << LBR_NO_INFO_BIT)
+
+#define LBR_PLM (LBR_KERNEL | LBR_USER)
+
+#define LBR_SEL_MASK 0x3ff /* valid bits in LBR_SELECT */
+#define LBR_NOT_SUPP -1 /* LBR filter not supported */
+#define LBR_IGN 0 /* ignored */
+
+#define LBR_ANY \
+ (LBR_JCC |\
+ LBR_REL_CALL |\
+ LBR_IND_CALL |\
+ LBR_RETURN |\
+ LBR_REL_JMP |\
+ LBR_IND_JMP |\
+ LBR_FAR)
+
+#define LBR_FROM_FLAG_MISPRED BIT_ULL(63)
+#define LBR_FROM_FLAG_IN_TX BIT_ULL(62)
+#define LBR_FROM_FLAG_ABORT BIT_ULL(61)
+
+#define LBR_FROM_SIGNEXT_2MSB (BIT_ULL(60) | BIT_ULL(59))
+
+/*
+ * Intel LBR_CTL bits
+ *
+ * Hardware branch filter for Arch LBR
+ */
+#define ARCH_LBR_KERNEL_BIT 1 /* capture at ring0 */
+#define ARCH_LBR_USER_BIT 2 /* capture at ring > 0 */
+#define ARCH_LBR_CALL_STACK_BIT 3 /* enable call stack */
+#define ARCH_LBR_JCC_BIT 16 /* capture conditional branches */
+#define ARCH_LBR_REL_JMP_BIT 17 /* capture relative jumps */
+#define ARCH_LBR_IND_JMP_BIT 18 /* capture indirect jumps */
+#define ARCH_LBR_REL_CALL_BIT 19 /* capture relative calls */
+#define ARCH_LBR_IND_CALL_BIT 20 /* capture indirect calls */
+#define ARCH_LBR_RETURN_BIT 21 /* capture near returns */
+#define ARCH_LBR_OTHER_BRANCH_BIT 22 /* capture other branches */
+
+#define ARCH_LBR_KERNEL (1ULL << ARCH_LBR_KERNEL_BIT)
+#define ARCH_LBR_USER (1ULL << ARCH_LBR_USER_BIT)
+#define ARCH_LBR_CALL_STACK (1ULL << ARCH_LBR_CALL_STACK_BIT)
+#define ARCH_LBR_JCC (1ULL << ARCH_LBR_JCC_BIT)
+#define ARCH_LBR_REL_JMP (1ULL << ARCH_LBR_REL_JMP_BIT)
+#define ARCH_LBR_IND_JMP (1ULL << ARCH_LBR_IND_JMP_BIT)
+#define ARCH_LBR_REL_CALL (1ULL << ARCH_LBR_REL_CALL_BIT)
+#define ARCH_LBR_IND_CALL (1ULL << ARCH_LBR_IND_CALL_BIT)
+#define ARCH_LBR_RETURN (1ULL << ARCH_LBR_RETURN_BIT)
+#define ARCH_LBR_OTHER_BRANCH (1ULL << ARCH_LBR_OTHER_BRANCH_BIT)
+
+#define ARCH_LBR_ANY \
+ (ARCH_LBR_JCC |\
+ ARCH_LBR_REL_JMP |\
+ ARCH_LBR_IND_JMP |\
+ ARCH_LBR_REL_CALL |\
+ ARCH_LBR_IND_CALL |\
+ ARCH_LBR_RETURN |\
+ ARCH_LBR_OTHER_BRANCH)
+
+#define ARCH_LBR_CTL_MASK 0x7f000e
+
+static void intel_pmu_lbr_filter(struct cpu_hw_events *cpuc);
+
+static __always_inline bool is_lbr_call_stack_bit_set(u64 config)
+{
+ if (static_cpu_has(X86_FEATURE_ARCH_LBR))
+ return !!(config & ARCH_LBR_CALL_STACK);
+
+ return !!(config & LBR_CALL_STACK);
+}
+
+/*
+ * We only support LBR implementations that have FREEZE_LBRS_ON_PMI
+ * otherwise it becomes near impossible to get a reliable stack.
+ */
+
+static void __intel_pmu_lbr_enable(bool pmi)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ u64 debugctl, lbr_select = 0, orig_debugctl;
+
+ /*
+ * No need to unfreeze manually, as v4 can do that as part
+ * of the GLOBAL_STATUS ack.
+ */
+ if (pmi && x86_pmu.version >= 4)
+ return;
+
+ /*
+ * No need to reprogram LBR_SELECT in a PMI, as it
+ * did not change.
+ */
+ if (cpuc->lbr_sel)
+ lbr_select = cpuc->lbr_sel->config & x86_pmu.lbr_sel_mask;
+ if (!static_cpu_has(X86_FEATURE_ARCH_LBR) && !pmi && cpuc->lbr_sel)
+ wrmsrl(MSR_LBR_SELECT, lbr_select);
+
+ rdmsrl(MSR_IA32_DEBUGCTLMSR, debugctl);
+ orig_debugctl = debugctl;
+
+ if (!static_cpu_has(X86_FEATURE_ARCH_LBR))
+ debugctl |= DEBUGCTLMSR_LBR;
+ /*
+ * LBR callstack does not work well with FREEZE_LBRS_ON_PMI.
+ * If FREEZE_LBRS_ON_PMI is set, PMI near call/return instructions
+ * may cause superfluous increase/decrease of LBR_TOS.
+ */
+ if (is_lbr_call_stack_bit_set(lbr_select))
+ debugctl &= ~DEBUGCTLMSR_FREEZE_LBRS_ON_PMI;
+ else
+ debugctl |= DEBUGCTLMSR_FREEZE_LBRS_ON_PMI;
+
+ if (orig_debugctl != debugctl)
+ wrmsrl(MSR_IA32_DEBUGCTLMSR, debugctl);
+
+ if (static_cpu_has(X86_FEATURE_ARCH_LBR))
+ wrmsrl(MSR_ARCH_LBR_CTL, lbr_select | ARCH_LBR_CTL_LBREN);
+}
+
+void intel_pmu_lbr_reset_32(void)
+{
+ int i;
+
+ for (i = 0; i < x86_pmu.lbr_nr; i++)
+ wrmsrl(x86_pmu.lbr_from + i, 0);
+}
+
+void intel_pmu_lbr_reset_64(void)
+{
+ int i;
+
+ for (i = 0; i < x86_pmu.lbr_nr; i++) {
+ wrmsrl(x86_pmu.lbr_from + i, 0);
+ wrmsrl(x86_pmu.lbr_to + i, 0);
+ if (x86_pmu.lbr_has_info)
+ wrmsrl(x86_pmu.lbr_info + i, 0);
+ }
+}
+
+static void intel_pmu_arch_lbr_reset(void)
+{
+ /* Write to ARCH_LBR_DEPTH MSR, all LBR entries are reset to 0 */
+ wrmsrl(MSR_ARCH_LBR_DEPTH, x86_pmu.lbr_nr);
+}
+
+void intel_pmu_lbr_reset(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (!x86_pmu.lbr_nr)
+ return;
+
+ x86_pmu.lbr_reset();
+
+ cpuc->last_task_ctx = NULL;
+ cpuc->last_log_id = 0;
+ if (!static_cpu_has(X86_FEATURE_ARCH_LBR) && cpuc->lbr_select)
+ wrmsrl(MSR_LBR_SELECT, 0);
+}
+
+/*
+ * TOS = most recently recorded branch
+ */
+static inline u64 intel_pmu_lbr_tos(void)
+{
+ u64 tos;
+
+ rdmsrl(x86_pmu.lbr_tos, tos);
+ return tos;
+}
+
+enum {
+ LBR_NONE,
+ LBR_VALID,
+};
+
+/*
+ * For format LBR_FORMAT_EIP_FLAGS2, bits 61:62 in MSR_LAST_BRANCH_FROM_x
+ * are the TSX flags when TSX is supported, but when TSX is not supported
+ * they have no consistent behavior:
+ *
+ * - For wrmsr(), bits 61:62 are considered part of the sign extension.
+ * - For HW updates (branch captures) bits 61:62 are always OFF and are not
+ * part of the sign extension.
+ *
+ * Therefore, if:
+ *
+ * 1) LBR format LBR_FORMAT_EIP_FLAGS2
+ * 2) CPU has no TSX support enabled
+ *
+ * ... then any value passed to wrmsr() must be sign extended to 63 bits and any
+ * value from rdmsr() must be converted to have a 61 bits sign extension,
+ * ignoring the TSX flags.
+ */
+static inline bool lbr_from_signext_quirk_needed(void)
+{
+ bool tsx_support = boot_cpu_has(X86_FEATURE_HLE) ||
+ boot_cpu_has(X86_FEATURE_RTM);
+
+ return !tsx_support;
+}
+
+static DEFINE_STATIC_KEY_FALSE(lbr_from_quirk_key);
+
+/* If quirk is enabled, ensure sign extension is 63 bits: */
+inline u64 lbr_from_signext_quirk_wr(u64 val)
+{
+ if (static_branch_unlikely(&lbr_from_quirk_key)) {
+ /*
+ * Sign extend into bits 61:62 while preserving bit 63.
+ *
+ * Quirk is enabled when TSX is disabled. Therefore TSX bits
+ * in val are always OFF and must be changed to be sign
+ * extension bits. Since bits 59:60 are guaranteed to be
+ * part of the sign extension bits, we can just copy them
+ * to 61:62.
+ */
+ val |= (LBR_FROM_SIGNEXT_2MSB & val) << 2;
+ }
+ return val;
+}
+
+/*
+ * If quirk is needed, ensure sign extension is 61 bits:
+ */
+static u64 lbr_from_signext_quirk_rd(u64 val)
+{
+ if (static_branch_unlikely(&lbr_from_quirk_key)) {
+ /*
+ * Quirk is on when TSX is not enabled. Therefore TSX
+ * flags must be read as OFF.
+ */
+ val &= ~(LBR_FROM_FLAG_IN_TX | LBR_FROM_FLAG_ABORT);
+ }
+ return val;
+}
+
+static __always_inline void wrlbr_from(unsigned int idx, u64 val)
+{
+ val = lbr_from_signext_quirk_wr(val);
+ wrmsrl(x86_pmu.lbr_from + idx, val);
+}
+
+static __always_inline void wrlbr_to(unsigned int idx, u64 val)
+{
+ wrmsrl(x86_pmu.lbr_to + idx, val);
+}
+
+static __always_inline void wrlbr_info(unsigned int idx, u64 val)
+{
+ wrmsrl(x86_pmu.lbr_info + idx, val);
+}
+
+static __always_inline u64 rdlbr_from(unsigned int idx, struct lbr_entry *lbr)
+{
+ u64 val;
+
+ if (lbr)
+ return lbr->from;
+
+ rdmsrl(x86_pmu.lbr_from + idx, val);
+
+ return lbr_from_signext_quirk_rd(val);
+}
+
+static __always_inline u64 rdlbr_to(unsigned int idx, struct lbr_entry *lbr)
+{
+ u64 val;
+
+ if (lbr)
+ return lbr->to;
+
+ rdmsrl(x86_pmu.lbr_to + idx, val);
+
+ return val;
+}
+
+static __always_inline u64 rdlbr_info(unsigned int idx, struct lbr_entry *lbr)
+{
+ u64 val;
+
+ if (lbr)
+ return lbr->info;
+
+ rdmsrl(x86_pmu.lbr_info + idx, val);
+
+ return val;
+}
+
+static inline void
+wrlbr_all(struct lbr_entry *lbr, unsigned int idx, bool need_info)
+{
+ wrlbr_from(idx, lbr->from);
+ wrlbr_to(idx, lbr->to);
+ if (need_info)
+ wrlbr_info(idx, lbr->info);
+}
+
+static inline bool
+rdlbr_all(struct lbr_entry *lbr, unsigned int idx, bool need_info)
+{
+ u64 from = rdlbr_from(idx, NULL);
+
+ /* Don't read invalid entry */
+ if (!from)
+ return false;
+
+ lbr->from = from;
+ lbr->to = rdlbr_to(idx, NULL);
+ if (need_info)
+ lbr->info = rdlbr_info(idx, NULL);
+
+ return true;
+}
+
+void intel_pmu_lbr_restore(void *ctx)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct x86_perf_task_context *task_ctx = ctx;
+ bool need_info = x86_pmu.lbr_has_info;
+ u64 tos = task_ctx->tos;
+ unsigned lbr_idx, mask;
+ int i;
+
+ mask = x86_pmu.lbr_nr - 1;
+ for (i = 0; i < task_ctx->valid_lbrs; i++) {
+ lbr_idx = (tos - i) & mask;
+ wrlbr_all(&task_ctx->lbr[i], lbr_idx, need_info);
+ }
+
+ for (; i < x86_pmu.lbr_nr; i++) {
+ lbr_idx = (tos - i) & mask;
+ wrlbr_from(lbr_idx, 0);
+ wrlbr_to(lbr_idx, 0);
+ if (need_info)
+ wrlbr_info(lbr_idx, 0);
+ }
+
+ wrmsrl(x86_pmu.lbr_tos, tos);
+
+ if (cpuc->lbr_select)
+ wrmsrl(MSR_LBR_SELECT, task_ctx->lbr_sel);
+}
+
+static void intel_pmu_arch_lbr_restore(void *ctx)
+{
+ struct x86_perf_task_context_arch_lbr *task_ctx = ctx;
+ struct lbr_entry *entries = task_ctx->entries;
+ int i;
+
+ /* Fast reset the LBRs before restore if the call stack is not full. */
+ if (!entries[x86_pmu.lbr_nr - 1].from)
+ intel_pmu_arch_lbr_reset();
+
+ for (i = 0; i < x86_pmu.lbr_nr; i++) {
+ if (!entries[i].from)
+ break;
+ wrlbr_all(&entries[i], i, true);
+ }
+}
+
+/*
+ * Restore the Architecture LBR state from the xsave area in the perf
+ * context data for the task via the XRSTORS instruction.
+ */
+static void intel_pmu_arch_lbr_xrstors(void *ctx)
+{
+ struct x86_perf_task_context_arch_lbr_xsave *task_ctx = ctx;
+
+ xrstors(&task_ctx->xsave, XFEATURE_MASK_LBR);
+}
+
+static __always_inline bool lbr_is_reset_in_cstate(void *ctx)
+{
+ if (static_cpu_has(X86_FEATURE_ARCH_LBR))
+ return x86_pmu.lbr_deep_c_reset && !rdlbr_from(0, NULL);
+
+ return !rdlbr_from(((struct x86_perf_task_context *)ctx)->tos, NULL);
+}
+
+static void __intel_pmu_lbr_restore(void *ctx)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (task_context_opt(ctx)->lbr_callstack_users == 0 ||
+ task_context_opt(ctx)->lbr_stack_state == LBR_NONE) {
+ intel_pmu_lbr_reset();
+ return;
+ }
+
+ /*
+ * Does not restore the LBR registers, if
+ * - No one else touched them, and
+ * - Was not cleared in Cstate
+ */
+ if ((ctx == cpuc->last_task_ctx) &&
+ (task_context_opt(ctx)->log_id == cpuc->last_log_id) &&
+ !lbr_is_reset_in_cstate(ctx)) {
+ task_context_opt(ctx)->lbr_stack_state = LBR_NONE;
+ return;
+ }
+
+ x86_pmu.lbr_restore(ctx);
+
+ task_context_opt(ctx)->lbr_stack_state = LBR_NONE;
+}
+
+void intel_pmu_lbr_save(void *ctx)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ struct x86_perf_task_context *task_ctx = ctx;
+ bool need_info = x86_pmu.lbr_has_info;
+ unsigned lbr_idx, mask;
+ u64 tos;
+ int i;
+
+ mask = x86_pmu.lbr_nr - 1;
+ tos = intel_pmu_lbr_tos();
+ for (i = 0; i < x86_pmu.lbr_nr; i++) {
+ lbr_idx = (tos - i) & mask;
+ if (!rdlbr_all(&task_ctx->lbr[i], lbr_idx, need_info))
+ break;
+ }
+ task_ctx->valid_lbrs = i;
+ task_ctx->tos = tos;
+
+ if (cpuc->lbr_select)
+ rdmsrl(MSR_LBR_SELECT, task_ctx->lbr_sel);
+}
+
+static void intel_pmu_arch_lbr_save(void *ctx)
+{
+ struct x86_perf_task_context_arch_lbr *task_ctx = ctx;
+ struct lbr_entry *entries = task_ctx->entries;
+ int i;
+
+ for (i = 0; i < x86_pmu.lbr_nr; i++) {
+ if (!rdlbr_all(&entries[i], i, true))
+ break;
+ }
+
+ /* LBR call stack is not full. Reset is required in restore. */
+ if (i < x86_pmu.lbr_nr)
+ entries[x86_pmu.lbr_nr - 1].from = 0;
+}
+
+/*
+ * Save the Architecture LBR state to the xsave area in the perf
+ * context data for the task via the XSAVES instruction.
+ */
+static void intel_pmu_arch_lbr_xsaves(void *ctx)
+{
+ struct x86_perf_task_context_arch_lbr_xsave *task_ctx = ctx;
+
+ xsaves(&task_ctx->xsave, XFEATURE_MASK_LBR);
+}
+
+static void __intel_pmu_lbr_save(void *ctx)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (task_context_opt(ctx)->lbr_callstack_users == 0) {
+ task_context_opt(ctx)->lbr_stack_state = LBR_NONE;
+ return;
+ }
+
+ x86_pmu.lbr_save(ctx);
+
+ task_context_opt(ctx)->lbr_stack_state = LBR_VALID;
+
+ cpuc->last_task_ctx = ctx;
+ cpuc->last_log_id = ++task_context_opt(ctx)->log_id;
+}
+
+void intel_pmu_lbr_swap_task_ctx(struct perf_event_pmu_context *prev_epc,
+ struct perf_event_pmu_context *next_epc)
+{
+ void *prev_ctx_data, *next_ctx_data;
+
+ swap(prev_epc->task_ctx_data, next_epc->task_ctx_data);
+
+ /*
+ * Architecture specific synchronization makes sense in case
+ * both prev_epc->task_ctx_data and next_epc->task_ctx_data
+ * pointers are allocated.
+ */
+
+ prev_ctx_data = next_epc->task_ctx_data;
+ next_ctx_data = prev_epc->task_ctx_data;
+
+ if (!prev_ctx_data || !next_ctx_data)
+ return;
+
+ swap(task_context_opt(prev_ctx_data)->lbr_callstack_users,
+ task_context_opt(next_ctx_data)->lbr_callstack_users);
+}
+
+void intel_pmu_lbr_sched_task(struct perf_event_pmu_context *pmu_ctx, bool sched_in)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+ void *task_ctx;
+
+ if (!cpuc->lbr_users)
+ return;
+
+ /*
+ * If LBR callstack feature is enabled and the stack was saved when
+ * the task was scheduled out, restore the stack. Otherwise flush
+ * the LBR stack.
+ */
+ task_ctx = pmu_ctx ? pmu_ctx->task_ctx_data : NULL;
+ if (task_ctx) {
+ if (sched_in)
+ __intel_pmu_lbr_restore(task_ctx);
+ else
+ __intel_pmu_lbr_save(task_ctx);
+ return;
+ }
+
+ /*
+ * Since a context switch can flip the address space and LBR entries
+ * are not tagged with an identifier, we need to wipe the LBR, even for
+ * per-cpu events. You simply cannot resolve the branches from the old
+ * address space.
+ */
+ if (sched_in)
+ intel_pmu_lbr_reset();
+}
+
+static inline bool branch_user_callstack(unsigned br_sel)
+{
+ return (br_sel & X86_BR_USER) && (br_sel & X86_BR_CALL_STACK);
+}
+
+void intel_pmu_lbr_add(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (!x86_pmu.lbr_nr)
+ return;
+
+ if (event->hw.flags & PERF_X86_EVENT_LBR_SELECT)
+ cpuc->lbr_select = 1;
+
+ cpuc->br_sel = event->hw.branch_reg.reg;
+
+ if (branch_user_callstack(cpuc->br_sel) && event->pmu_ctx->task_ctx_data)
+ task_context_opt(event->pmu_ctx->task_ctx_data)->lbr_callstack_users++;
+
+ /*
+ * Request pmu::sched_task() callback, which will fire inside the
+ * regular perf event scheduling, so that call will:
+ *
+ * - restore or wipe; when LBR-callstack,
+ * - wipe; otherwise,
+ *
+ * when this is from __perf_event_task_sched_in().
+ *
+ * However, if this is from perf_install_in_context(), no such callback
+ * will follow and we'll need to reset the LBR here if this is the
+ * first LBR event.
+ *
+ * The problem is, we cannot tell these cases apart... but we can
+ * exclude the biggest chunk of cases by looking at
+ * event->total_time_running. An event that has accrued runtime cannot
+ * be 'new'. Conversely, a new event can get installed through the
+ * context switch path for the first time.
+ */
+ if (x86_pmu.intel_cap.pebs_baseline && event->attr.precise_ip > 0)
+ cpuc->lbr_pebs_users++;
+ perf_sched_cb_inc(event->pmu);
+ if (!cpuc->lbr_users++ && !event->total_time_running)
+ intel_pmu_lbr_reset();
+}
+
+void release_lbr_buffers(void)
+{
+ struct kmem_cache *kmem_cache;
+ struct cpu_hw_events *cpuc;
+ int cpu;
+
+ if (!static_cpu_has(X86_FEATURE_ARCH_LBR))
+ return;
+
+ for_each_possible_cpu(cpu) {
+ cpuc = per_cpu_ptr(&cpu_hw_events, cpu);
+ kmem_cache = x86_get_pmu(cpu)->task_ctx_cache;
+ if (kmem_cache && cpuc->lbr_xsave) {
+ kmem_cache_free(kmem_cache, cpuc->lbr_xsave);
+ cpuc->lbr_xsave = NULL;
+ }
+ }
+}
+
+void reserve_lbr_buffers(void)
+{
+ struct kmem_cache *kmem_cache;
+ struct cpu_hw_events *cpuc;
+ int cpu;
+
+ if (!static_cpu_has(X86_FEATURE_ARCH_LBR))
+ return;
+
+ for_each_possible_cpu(cpu) {
+ cpuc = per_cpu_ptr(&cpu_hw_events, cpu);
+ kmem_cache = x86_get_pmu(cpu)->task_ctx_cache;
+ if (!kmem_cache || cpuc->lbr_xsave)
+ continue;
+
+ cpuc->lbr_xsave = kmem_cache_alloc_node(kmem_cache,
+ GFP_KERNEL | __GFP_ZERO,
+ cpu_to_node(cpu));
+ }
+}
+
+void intel_pmu_lbr_del(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (!x86_pmu.lbr_nr)
+ return;
+
+ if (branch_user_callstack(cpuc->br_sel) &&
+ event->pmu_ctx->task_ctx_data)
+ task_context_opt(event->pmu_ctx->task_ctx_data)->lbr_callstack_users--;
+
+ if (event->hw.flags & PERF_X86_EVENT_LBR_SELECT)
+ cpuc->lbr_select = 0;
+
+ if (x86_pmu.intel_cap.pebs_baseline && event->attr.precise_ip > 0)
+ cpuc->lbr_pebs_users--;
+ cpuc->lbr_users--;
+ WARN_ON_ONCE(cpuc->lbr_users < 0);
+ WARN_ON_ONCE(cpuc->lbr_pebs_users < 0);
+ perf_sched_cb_dec(event->pmu);
+}
+
+static inline bool vlbr_exclude_host(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ return test_bit(INTEL_PMC_IDX_FIXED_VLBR,
+ (unsigned long *)&cpuc->intel_ctrl_guest_mask);
+}
+
+void intel_pmu_lbr_enable_all(bool pmi)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (cpuc->lbr_users && !vlbr_exclude_host())
+ __intel_pmu_lbr_enable(pmi);
+}
+
+void intel_pmu_lbr_disable_all(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ if (cpuc->lbr_users && !vlbr_exclude_host()) {
+ if (static_cpu_has(X86_FEATURE_ARCH_LBR))
+ return __intel_pmu_arch_lbr_disable();
+
+ __intel_pmu_lbr_disable();
+ }
+}
+
+void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc)
+{
+ unsigned long mask = x86_pmu.lbr_nr - 1;
+ struct perf_branch_entry *br = cpuc->lbr_entries;
+ u64 tos = intel_pmu_lbr_tos();
+ int i;
+
+ for (i = 0; i < x86_pmu.lbr_nr; i++) {
+ unsigned long lbr_idx = (tos - i) & mask;
+ union {
+ struct {
+ u32 from;
+ u32 to;
+ };
+ u64 lbr;
+ } msr_lastbranch;
+
+ rdmsrl(x86_pmu.lbr_from + lbr_idx, msr_lastbranch.lbr);
+
+ perf_clear_branch_entry_bitfields(br);
+
+ br->from = msr_lastbranch.from;
+ br->to = msr_lastbranch.to;
+ br++;
+ }
+ cpuc->lbr_stack.nr = i;
+ cpuc->lbr_stack.hw_idx = tos;
+}
+
+/*
+ * Due to lack of segmentation in Linux the effective address (offset)
+ * is the same as the linear address, allowing us to merge the LIP and EIP
+ * LBR formats.
+ */
+void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc)
+{
+ bool need_info = false, call_stack = false;
+ unsigned long mask = x86_pmu.lbr_nr - 1;
+ struct perf_branch_entry *br = cpuc->lbr_entries;
+ u64 tos = intel_pmu_lbr_tos();
+ int i;
+ int out = 0;
+ int num = x86_pmu.lbr_nr;
+
+ if (cpuc->lbr_sel) {
+ need_info = !(cpuc->lbr_sel->config & LBR_NO_INFO);
+ if (cpuc->lbr_sel->config & LBR_CALL_STACK)
+ call_stack = true;
+ }
+
+ for (i = 0; i < num; i++) {
+ unsigned long lbr_idx = (tos - i) & mask;
+ u64 from, to, mis = 0, pred = 0, in_tx = 0, abort = 0;
+ u16 cycles = 0;
+
+ from = rdlbr_from(lbr_idx, NULL);
+ to = rdlbr_to(lbr_idx, NULL);
+
+ /*
+ * Read LBR call stack entries
+ * until invalid entry (0s) is detected.
+ */
+ if (call_stack && !from)
+ break;
+
+ if (x86_pmu.lbr_has_info) {
+ if (need_info) {
+ u64 info;
+
+ info = rdlbr_info(lbr_idx, NULL);
+ mis = !!(info & LBR_INFO_MISPRED);
+ pred = !mis;
+ cycles = (info & LBR_INFO_CYCLES);
+ if (x86_pmu.lbr_has_tsx) {
+ in_tx = !!(info & LBR_INFO_IN_TX);
+ abort = !!(info & LBR_INFO_ABORT);
+ }
+ }
+ } else {
+ int skip = 0;
+
+ if (x86_pmu.lbr_from_flags) {
+ mis = !!(from & LBR_FROM_FLAG_MISPRED);
+ pred = !mis;
+ skip = 1;
+ }
+ if (x86_pmu.lbr_has_tsx) {
+ in_tx = !!(from & LBR_FROM_FLAG_IN_TX);
+ abort = !!(from & LBR_FROM_FLAG_ABORT);
+ skip = 3;
+ }
+ from = (u64)((((s64)from) << skip) >> skip);
+
+ if (x86_pmu.lbr_to_cycles) {
+ cycles = ((to >> 48) & LBR_INFO_CYCLES);
+ to = (u64)((((s64)to) << 16) >> 16);
+ }
+ }
+
+ /*
+ * Some CPUs report duplicated abort records,
+ * with the second entry not having an abort bit set.
+ * Skip them here. This loop runs backwards,
+ * so we need to undo the previous record.
+ * If the abort just happened outside the window
+ * the extra entry cannot be removed.
+ */
+ if (abort && x86_pmu.lbr_double_abort && out > 0)
+ out--;
+
+ perf_clear_branch_entry_bitfields(br+out);
+ br[out].from = from;
+ br[out].to = to;
+ br[out].mispred = mis;
+ br[out].predicted = pred;
+ br[out].in_tx = in_tx;
+ br[out].abort = abort;
+ br[out].cycles = cycles;
+ out++;
+ }
+ cpuc->lbr_stack.nr = out;
+ cpuc->lbr_stack.hw_idx = tos;
+}
+
+static DEFINE_STATIC_KEY_FALSE(x86_lbr_mispred);
+static DEFINE_STATIC_KEY_FALSE(x86_lbr_cycles);
+static DEFINE_STATIC_KEY_FALSE(x86_lbr_type);
+
+static __always_inline int get_lbr_br_type(u64 info)
+{
+ int type = 0;
+
+ if (static_branch_likely(&x86_lbr_type))
+ type = (info & LBR_INFO_BR_TYPE) >> LBR_INFO_BR_TYPE_OFFSET;
+
+ return type;
+}
+
+static __always_inline bool get_lbr_mispred(u64 info)
+{
+ bool mispred = 0;
+
+ if (static_branch_likely(&x86_lbr_mispred))
+ mispred = !!(info & LBR_INFO_MISPRED);
+
+ return mispred;
+}
+
+static __always_inline u16 get_lbr_cycles(u64 info)
+{
+ u16 cycles = info & LBR_INFO_CYCLES;
+
+ if (static_cpu_has(X86_FEATURE_ARCH_LBR) &&
+ (!static_branch_likely(&x86_lbr_cycles) ||
+ !(info & LBR_INFO_CYC_CNT_VALID)))
+ cycles = 0;
+
+ return cycles;
+}
+
+static void intel_pmu_store_lbr(struct cpu_hw_events *cpuc,
+ struct lbr_entry *entries)
+{
+ struct perf_branch_entry *e;
+ struct lbr_entry *lbr;
+ u64 from, to, info;
+ int i;
+
+ for (i = 0; i < x86_pmu.lbr_nr; i++) {
+ lbr = entries ? &entries[i] : NULL;
+ e = &cpuc->lbr_entries[i];
+
+ from = rdlbr_from(i, lbr);
+ /*
+ * Read LBR entries until invalid entry (0s) is detected.
+ */
+ if (!from)
+ break;
+
+ to = rdlbr_to(i, lbr);
+ info = rdlbr_info(i, lbr);
+
+ perf_clear_branch_entry_bitfields(e);
+
+ e->from = from;
+ e->to = to;
+ e->mispred = get_lbr_mispred(info);
+ e->predicted = !e->mispred;
+ e->in_tx = !!(info & LBR_INFO_IN_TX);
+ e->abort = !!(info & LBR_INFO_ABORT);
+ e->cycles = get_lbr_cycles(info);
+ e->type = get_lbr_br_type(info);
+ }
+
+ cpuc->lbr_stack.nr = i;
+}
+
+static void intel_pmu_arch_lbr_read(struct cpu_hw_events *cpuc)
+{
+ intel_pmu_store_lbr(cpuc, NULL);
+}
+
+static void intel_pmu_arch_lbr_read_xsave(struct cpu_hw_events *cpuc)
+{
+ struct x86_perf_task_context_arch_lbr_xsave *xsave = cpuc->lbr_xsave;
+
+ if (!xsave) {
+ intel_pmu_store_lbr(cpuc, NULL);
+ return;
+ }
+ xsaves(&xsave->xsave, XFEATURE_MASK_LBR);
+
+ intel_pmu_store_lbr(cpuc, xsave->lbr.entries);
+}
+
+void intel_pmu_lbr_read(void)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /*
+ * Don't read when all LBRs users are using adaptive PEBS.
+ *
+ * This could be smarter and actually check the event,
+ * but this simple approach seems to work for now.
+ */
+ if (!cpuc->lbr_users || vlbr_exclude_host() ||
+ cpuc->lbr_users == cpuc->lbr_pebs_users)
+ return;
+
+ x86_pmu.lbr_read(cpuc);
+
+ intel_pmu_lbr_filter(cpuc);
+}
+
+/*
+ * SW filter is used:
+ * - in case there is no HW filter
+ * - in case the HW filter has errata or limitations
+ */
+static int intel_pmu_setup_sw_lbr_filter(struct perf_event *event)
+{
+ u64 br_type = event->attr.branch_sample_type;
+ int mask = 0;
+
+ if (br_type & PERF_SAMPLE_BRANCH_USER)
+ mask |= X86_BR_USER;
+
+ if (br_type & PERF_SAMPLE_BRANCH_KERNEL)
+ mask |= X86_BR_KERNEL;
+
+ /* we ignore BRANCH_HV here */
+
+ if (br_type & PERF_SAMPLE_BRANCH_ANY)
+ mask |= X86_BR_ANY;
+
+ if (br_type & PERF_SAMPLE_BRANCH_ANY_CALL)
+ mask |= X86_BR_ANY_CALL;
+
+ if (br_type & PERF_SAMPLE_BRANCH_ANY_RETURN)
+ mask |= X86_BR_RET | X86_BR_IRET | X86_BR_SYSRET;
+
+ if (br_type & PERF_SAMPLE_BRANCH_IND_CALL)
+ mask |= X86_BR_IND_CALL;
+
+ if (br_type & PERF_SAMPLE_BRANCH_ABORT_TX)
+ mask |= X86_BR_ABORT;
+
+ if (br_type & PERF_SAMPLE_BRANCH_IN_TX)
+ mask |= X86_BR_IN_TX;
+
+ if (br_type & PERF_SAMPLE_BRANCH_NO_TX)
+ mask |= X86_BR_NO_TX;
+
+ if (br_type & PERF_SAMPLE_BRANCH_COND)
+ mask |= X86_BR_JCC;
+
+ if (br_type & PERF_SAMPLE_BRANCH_CALL_STACK) {
+ if (!x86_pmu_has_lbr_callstack())
+ return -EOPNOTSUPP;
+ if (mask & ~(X86_BR_USER | X86_BR_KERNEL))
+ return -EINVAL;
+ mask |= X86_BR_CALL | X86_BR_IND_CALL | X86_BR_RET |
+ X86_BR_CALL_STACK;
+ }
+
+ if (br_type & PERF_SAMPLE_BRANCH_IND_JUMP)
+ mask |= X86_BR_IND_JMP;
+
+ if (br_type & PERF_SAMPLE_BRANCH_CALL)
+ mask |= X86_BR_CALL | X86_BR_ZERO_CALL;
+
+ if (br_type & PERF_SAMPLE_BRANCH_TYPE_SAVE)
+ mask |= X86_BR_TYPE_SAVE;
+
+ /*
+ * stash actual user request into reg, it may
+ * be used by fixup code for some CPU
+ */
+ event->hw.branch_reg.reg = mask;
+ return 0;
+}
+
+/*
+ * setup the HW LBR filter
+ * Used only when available, may not be enough to disambiguate
+ * all branches, may need the help of the SW filter
+ */
+static int intel_pmu_setup_hw_lbr_filter(struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg;
+ u64 br_type = event->attr.branch_sample_type;
+ u64 mask = 0, v;
+ int i;
+
+ for (i = 0; i < PERF_SAMPLE_BRANCH_MAX_SHIFT; i++) {
+ if (!(br_type & (1ULL << i)))
+ continue;
+
+ v = x86_pmu.lbr_sel_map[i];
+ if (v == LBR_NOT_SUPP)
+ return -EOPNOTSUPP;
+
+ if (v != LBR_IGN)
+ mask |= v;
+ }
+
+ reg = &event->hw.branch_reg;
+ reg->idx = EXTRA_REG_LBR;
+
+ if (static_cpu_has(X86_FEATURE_ARCH_LBR)) {
+ reg->config = mask;
+
+ /*
+ * The Arch LBR HW can retrieve the common branch types
+ * from the LBR_INFO. It doesn't require the high overhead
+ * SW disassemble.
+ * Enable the branch type by default for the Arch LBR.
+ */
+ reg->reg |= X86_BR_TYPE_SAVE;
+ return 0;
+ }
+
+ /*
+ * The first 9 bits (LBR_SEL_MASK) in LBR_SELECT operate
+ * in suppress mode. So LBR_SELECT should be set to
+ * (~mask & LBR_SEL_MASK) | (mask & ~LBR_SEL_MASK)
+ * But the 10th bit LBR_CALL_STACK does not operate
+ * in suppress mode.
+ */
+ reg->config = mask ^ (x86_pmu.lbr_sel_mask & ~LBR_CALL_STACK);
+
+ if ((br_type & PERF_SAMPLE_BRANCH_NO_CYCLES) &&
+ (br_type & PERF_SAMPLE_BRANCH_NO_FLAGS) &&
+ x86_pmu.lbr_has_info)
+ reg->config |= LBR_NO_INFO;
+
+ return 0;
+}
+
+int intel_pmu_setup_lbr_filter(struct perf_event *event)
+{
+ int ret = 0;
+
+ /*
+ * no LBR on this PMU
+ */
+ if (!x86_pmu.lbr_nr)
+ return -EOPNOTSUPP;
+
+ /*
+ * setup SW LBR filter
+ */
+ ret = intel_pmu_setup_sw_lbr_filter(event);
+ if (ret)
+ return ret;
+
+ /*
+ * setup HW LBR filter, if any
+ */
+ if (x86_pmu.lbr_sel_map)
+ ret = intel_pmu_setup_hw_lbr_filter(event);
+
+ return ret;
+}
+
+enum {
+ ARCH_LBR_BR_TYPE_JCC = 0,
+ ARCH_LBR_BR_TYPE_NEAR_IND_JMP = 1,
+ ARCH_LBR_BR_TYPE_NEAR_REL_JMP = 2,
+ ARCH_LBR_BR_TYPE_NEAR_IND_CALL = 3,
+ ARCH_LBR_BR_TYPE_NEAR_REL_CALL = 4,
+ ARCH_LBR_BR_TYPE_NEAR_RET = 5,
+ ARCH_LBR_BR_TYPE_KNOWN_MAX = ARCH_LBR_BR_TYPE_NEAR_RET,
+
+ ARCH_LBR_BR_TYPE_MAP_MAX = 16,
+};
+
+static const int arch_lbr_br_type_map[ARCH_LBR_BR_TYPE_MAP_MAX] = {
+ [ARCH_LBR_BR_TYPE_JCC] = X86_BR_JCC,
+ [ARCH_LBR_BR_TYPE_NEAR_IND_JMP] = X86_BR_IND_JMP,
+ [ARCH_LBR_BR_TYPE_NEAR_REL_JMP] = X86_BR_JMP,
+ [ARCH_LBR_BR_TYPE_NEAR_IND_CALL] = X86_BR_IND_CALL,
+ [ARCH_LBR_BR_TYPE_NEAR_REL_CALL] = X86_BR_CALL,
+ [ARCH_LBR_BR_TYPE_NEAR_RET] = X86_BR_RET,
+};
+
+/*
+ * implement actual branch filter based on user demand.
+ * Hardware may not exactly satisfy that request, thus
+ * we need to inspect opcodes. Mismatched branches are
+ * discarded. Therefore, the number of branches returned
+ * in PERF_SAMPLE_BRANCH_STACK sample may vary.
+ */
+static void
+intel_pmu_lbr_filter(struct cpu_hw_events *cpuc)
+{
+ u64 from, to;
+ int br_sel = cpuc->br_sel;
+ int i, j, type, to_plm;
+ bool compress = false;
+
+ /* if sampling all branches, then nothing to filter */
+ if (((br_sel & X86_BR_ALL) == X86_BR_ALL) &&
+ ((br_sel & X86_BR_TYPE_SAVE) != X86_BR_TYPE_SAVE))
+ return;
+
+ for (i = 0; i < cpuc->lbr_stack.nr; i++) {
+
+ from = cpuc->lbr_entries[i].from;
+ to = cpuc->lbr_entries[i].to;
+ type = cpuc->lbr_entries[i].type;
+
+ /*
+ * Parse the branch type recorded in LBR_x_INFO MSR.
+ * Doesn't support OTHER_BRANCH decoding for now.
+ * OTHER_BRANCH branch type still rely on software decoding.
+ */
+ if (static_cpu_has(X86_FEATURE_ARCH_LBR) &&
+ type <= ARCH_LBR_BR_TYPE_KNOWN_MAX) {
+ to_plm = kernel_ip(to) ? X86_BR_KERNEL : X86_BR_USER;
+ type = arch_lbr_br_type_map[type] | to_plm;
+ } else
+ type = branch_type(from, to, cpuc->lbr_entries[i].abort);
+ if (type != X86_BR_NONE && (br_sel & X86_BR_ANYTX)) {
+ if (cpuc->lbr_entries[i].in_tx)
+ type |= X86_BR_IN_TX;
+ else
+ type |= X86_BR_NO_TX;
+ }
+
+ /* if type does not correspond, then discard */
+ if (type == X86_BR_NONE || (br_sel & type) != type) {
+ cpuc->lbr_entries[i].from = 0;
+ compress = true;
+ }
+
+ if ((br_sel & X86_BR_TYPE_SAVE) == X86_BR_TYPE_SAVE)
+ cpuc->lbr_entries[i].type = common_branch_type(type);
+ }
+
+ if (!compress)
+ return;
+
+ /* remove all entries with from=0 */
+ for (i = 0; i < cpuc->lbr_stack.nr; ) {
+ if (!cpuc->lbr_entries[i].from) {
+ j = i;
+ while (++j < cpuc->lbr_stack.nr)
+ cpuc->lbr_entries[j-1] = cpuc->lbr_entries[j];
+ cpuc->lbr_stack.nr--;
+ if (!cpuc->lbr_entries[i].from)
+ continue;
+ }
+ i++;
+ }
+}
+
+void intel_pmu_store_pebs_lbrs(struct lbr_entry *lbr)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ /* Cannot get TOS for large PEBS and Arch LBR */
+ if (static_cpu_has(X86_FEATURE_ARCH_LBR) ||
+ (cpuc->n_pebs == cpuc->n_large_pebs))
+ cpuc->lbr_stack.hw_idx = -1ULL;
+ else
+ cpuc->lbr_stack.hw_idx = intel_pmu_lbr_tos();
+
+ intel_pmu_store_lbr(cpuc, lbr);
+ intel_pmu_lbr_filter(cpuc);
+}
+
+/*
+ * Map interface branch filters onto LBR filters
+ */
+static const int nhm_lbr_sel_map[PERF_SAMPLE_BRANCH_MAX_SHIFT] = {
+ [PERF_SAMPLE_BRANCH_ANY_SHIFT] = LBR_ANY,
+ [PERF_SAMPLE_BRANCH_USER_SHIFT] = LBR_USER,
+ [PERF_SAMPLE_BRANCH_KERNEL_SHIFT] = LBR_KERNEL,
+ [PERF_SAMPLE_BRANCH_HV_SHIFT] = LBR_IGN,
+ [PERF_SAMPLE_BRANCH_ANY_RETURN_SHIFT] = LBR_RETURN | LBR_REL_JMP
+ | LBR_IND_JMP | LBR_FAR,
+ /*
+ * NHM/WSM erratum: must include REL_JMP+IND_JMP to get CALL branches
+ */
+ [PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT] =
+ LBR_REL_CALL | LBR_IND_CALL | LBR_REL_JMP | LBR_IND_JMP | LBR_FAR,
+ /*
+ * NHM/WSM erratum: must include IND_JMP to capture IND_CALL
+ */
+ [PERF_SAMPLE_BRANCH_IND_CALL_SHIFT] = LBR_IND_CALL | LBR_IND_JMP,
+ [PERF_SAMPLE_BRANCH_COND_SHIFT] = LBR_JCC,
+ [PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT] = LBR_IND_JMP,
+};
+
+static const int snb_lbr_sel_map[PERF_SAMPLE_BRANCH_MAX_SHIFT] = {
+ [PERF_SAMPLE_BRANCH_ANY_SHIFT] = LBR_ANY,
+ [PERF_SAMPLE_BRANCH_USER_SHIFT] = LBR_USER,
+ [PERF_SAMPLE_BRANCH_KERNEL_SHIFT] = LBR_KERNEL,
+ [PERF_SAMPLE_BRANCH_HV_SHIFT] = LBR_IGN,
+ [PERF_SAMPLE_BRANCH_ANY_RETURN_SHIFT] = LBR_RETURN | LBR_FAR,
+ [PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT] = LBR_REL_CALL | LBR_IND_CALL
+ | LBR_FAR,
+ [PERF_SAMPLE_BRANCH_IND_CALL_SHIFT] = LBR_IND_CALL,
+ [PERF_SAMPLE_BRANCH_COND_SHIFT] = LBR_JCC,
+ [PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT] = LBR_IND_JMP,
+ [PERF_SAMPLE_BRANCH_CALL_SHIFT] = LBR_REL_CALL,
+};
+
+static const int hsw_lbr_sel_map[PERF_SAMPLE_BRANCH_MAX_SHIFT] = {
+ [PERF_SAMPLE_BRANCH_ANY_SHIFT] = LBR_ANY,
+ [PERF_SAMPLE_BRANCH_USER_SHIFT] = LBR_USER,
+ [PERF_SAMPLE_BRANCH_KERNEL_SHIFT] = LBR_KERNEL,
+ [PERF_SAMPLE_BRANCH_HV_SHIFT] = LBR_IGN,
+ [PERF_SAMPLE_BRANCH_ANY_RETURN_SHIFT] = LBR_RETURN | LBR_FAR,
+ [PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT] = LBR_REL_CALL | LBR_IND_CALL
+ | LBR_FAR,
+ [PERF_SAMPLE_BRANCH_IND_CALL_SHIFT] = LBR_IND_CALL,
+ [PERF_SAMPLE_BRANCH_COND_SHIFT] = LBR_JCC,
+ [PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT] = LBR_REL_CALL | LBR_IND_CALL
+ | LBR_RETURN | LBR_CALL_STACK,
+ [PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT] = LBR_IND_JMP,
+ [PERF_SAMPLE_BRANCH_CALL_SHIFT] = LBR_REL_CALL,
+};
+
+static int arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_MAX_SHIFT] = {
+ [PERF_SAMPLE_BRANCH_ANY_SHIFT] = ARCH_LBR_ANY,
+ [PERF_SAMPLE_BRANCH_USER_SHIFT] = ARCH_LBR_USER,
+ [PERF_SAMPLE_BRANCH_KERNEL_SHIFT] = ARCH_LBR_KERNEL,
+ [PERF_SAMPLE_BRANCH_HV_SHIFT] = LBR_IGN,
+ [PERF_SAMPLE_BRANCH_ANY_RETURN_SHIFT] = ARCH_LBR_RETURN |
+ ARCH_LBR_OTHER_BRANCH,
+ [PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT] = ARCH_LBR_REL_CALL |
+ ARCH_LBR_IND_CALL |
+ ARCH_LBR_OTHER_BRANCH,
+ [PERF_SAMPLE_BRANCH_IND_CALL_SHIFT] = ARCH_LBR_IND_CALL,
+ [PERF_SAMPLE_BRANCH_COND_SHIFT] = ARCH_LBR_JCC,
+ [PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT] = ARCH_LBR_REL_CALL |
+ ARCH_LBR_IND_CALL |
+ ARCH_LBR_RETURN |
+ ARCH_LBR_CALL_STACK,
+ [PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT] = ARCH_LBR_IND_JMP,
+ [PERF_SAMPLE_BRANCH_CALL_SHIFT] = ARCH_LBR_REL_CALL,
+};
+
+/* core */
+void __init intel_pmu_lbr_init_core(void)
+{
+ x86_pmu.lbr_nr = 4;
+ x86_pmu.lbr_tos = MSR_LBR_TOS;
+ x86_pmu.lbr_from = MSR_LBR_CORE_FROM;
+ x86_pmu.lbr_to = MSR_LBR_CORE_TO;
+
+ /*
+ * SW branch filter usage:
+ * - compensate for lack of HW filter
+ */
+}
+
+/* nehalem/westmere */
+void __init intel_pmu_lbr_init_nhm(void)
+{
+ x86_pmu.lbr_nr = 16;
+ x86_pmu.lbr_tos = MSR_LBR_TOS;
+ x86_pmu.lbr_from = MSR_LBR_NHM_FROM;
+ x86_pmu.lbr_to = MSR_LBR_NHM_TO;
+
+ x86_pmu.lbr_sel_mask = LBR_SEL_MASK;
+ x86_pmu.lbr_sel_map = nhm_lbr_sel_map;
+
+ /*
+ * SW branch filter usage:
+ * - workaround LBR_SEL errata (see above)
+ * - support syscall, sysret capture.
+ * That requires LBR_FAR but that means far
+ * jmp need to be filtered out
+ */
+}
+
+/* sandy bridge */
+void __init intel_pmu_lbr_init_snb(void)
+{
+ x86_pmu.lbr_nr = 16;
+ x86_pmu.lbr_tos = MSR_LBR_TOS;
+ x86_pmu.lbr_from = MSR_LBR_NHM_FROM;
+ x86_pmu.lbr_to = MSR_LBR_NHM_TO;
+
+ x86_pmu.lbr_sel_mask = LBR_SEL_MASK;
+ x86_pmu.lbr_sel_map = snb_lbr_sel_map;
+
+ /*
+ * SW branch filter usage:
+ * - support syscall, sysret capture.
+ * That requires LBR_FAR but that means far
+ * jmp need to be filtered out
+ */
+}
+
+static inline struct kmem_cache *
+create_lbr_kmem_cache(size_t size, size_t align)
+{
+ return kmem_cache_create("x86_lbr", size, align, 0, NULL);
+}
+
+/* haswell */
+void intel_pmu_lbr_init_hsw(void)
+{
+ size_t size = sizeof(struct x86_perf_task_context);
+
+ x86_pmu.lbr_nr = 16;
+ x86_pmu.lbr_tos = MSR_LBR_TOS;
+ x86_pmu.lbr_from = MSR_LBR_NHM_FROM;
+ x86_pmu.lbr_to = MSR_LBR_NHM_TO;
+
+ x86_pmu.lbr_sel_mask = LBR_SEL_MASK;
+ x86_pmu.lbr_sel_map = hsw_lbr_sel_map;
+
+ x86_get_pmu(smp_processor_id())->task_ctx_cache = create_lbr_kmem_cache(size, 0);
+}
+
+/* skylake */
+__init void intel_pmu_lbr_init_skl(void)
+{
+ size_t size = sizeof(struct x86_perf_task_context);
+
+ x86_pmu.lbr_nr = 32;
+ x86_pmu.lbr_tos = MSR_LBR_TOS;
+ x86_pmu.lbr_from = MSR_LBR_NHM_FROM;
+ x86_pmu.lbr_to = MSR_LBR_NHM_TO;
+ x86_pmu.lbr_info = MSR_LBR_INFO_0;
+
+ x86_pmu.lbr_sel_mask = LBR_SEL_MASK;
+ x86_pmu.lbr_sel_map = hsw_lbr_sel_map;
+
+ x86_get_pmu(smp_processor_id())->task_ctx_cache = create_lbr_kmem_cache(size, 0);
+
+ /*
+ * SW branch filter usage:
+ * - support syscall, sysret capture.
+ * That requires LBR_FAR but that means far
+ * jmp need to be filtered out
+ */
+}
+
+/* atom */
+void __init intel_pmu_lbr_init_atom(void)
+{
+ /*
+ * only models starting at stepping 10 seems
+ * to have an operational LBR which can freeze
+ * on PMU interrupt
+ */
+ if (boot_cpu_data.x86_model == 28
+ && boot_cpu_data.x86_stepping < 10) {
+ pr_cont("LBR disabled due to erratum");
+ return;
+ }
+
+ x86_pmu.lbr_nr = 8;
+ x86_pmu.lbr_tos = MSR_LBR_TOS;
+ x86_pmu.lbr_from = MSR_LBR_CORE_FROM;
+ x86_pmu.lbr_to = MSR_LBR_CORE_TO;
+
+ /*
+ * SW branch filter usage:
+ * - compensate for lack of HW filter
+ */
+}
+
+/* slm */
+void __init intel_pmu_lbr_init_slm(void)
+{
+ x86_pmu.lbr_nr = 8;
+ x86_pmu.lbr_tos = MSR_LBR_TOS;
+ x86_pmu.lbr_from = MSR_LBR_CORE_FROM;
+ x86_pmu.lbr_to = MSR_LBR_CORE_TO;
+
+ x86_pmu.lbr_sel_mask = LBR_SEL_MASK;
+ x86_pmu.lbr_sel_map = nhm_lbr_sel_map;
+
+ /*
+ * SW branch filter usage:
+ * - compensate for lack of HW filter
+ */
+ pr_cont("8-deep LBR, ");
+}
+
+/* Knights Landing */
+void intel_pmu_lbr_init_knl(void)
+{
+ x86_pmu.lbr_nr = 8;
+ x86_pmu.lbr_tos = MSR_LBR_TOS;
+ x86_pmu.lbr_from = MSR_LBR_NHM_FROM;
+ x86_pmu.lbr_to = MSR_LBR_NHM_TO;
+
+ x86_pmu.lbr_sel_mask = LBR_SEL_MASK;
+ x86_pmu.lbr_sel_map = snb_lbr_sel_map;
+
+ /* Knights Landing does have MISPREDICT bit */
+ if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_LIP)
+ x86_pmu.intel_cap.lbr_format = LBR_FORMAT_EIP_FLAGS;
+}
+
+void intel_pmu_lbr_init(void)
+{
+ switch (x86_pmu.intel_cap.lbr_format) {
+ case LBR_FORMAT_EIP_FLAGS2:
+ x86_pmu.lbr_has_tsx = 1;
+ x86_pmu.lbr_from_flags = 1;
+ if (lbr_from_signext_quirk_needed())
+ static_branch_enable(&lbr_from_quirk_key);
+ break;
+
+ case LBR_FORMAT_EIP_FLAGS:
+ x86_pmu.lbr_from_flags = 1;
+ break;
+
+ case LBR_FORMAT_INFO:
+ x86_pmu.lbr_has_tsx = 1;
+ fallthrough;
+ case LBR_FORMAT_INFO2:
+ x86_pmu.lbr_has_info = 1;
+ break;
+
+ case LBR_FORMAT_TIME:
+ x86_pmu.lbr_from_flags = 1;
+ x86_pmu.lbr_to_cycles = 1;
+ break;
+ }
+
+ if (x86_pmu.lbr_has_info) {
+ /*
+ * Only used in combination with baseline pebs.
+ */
+ static_branch_enable(&x86_lbr_mispred);
+ static_branch_enable(&x86_lbr_cycles);
+ }
+}
+
+/*
+ * LBR state size is variable based on the max number of registers.
+ * This calculates the expected state size, which should match
+ * what the hardware enumerates for the size of XFEATURE_LBR.
+ */
+static inline unsigned int get_lbr_state_size(void)
+{
+ return sizeof(struct arch_lbr_state) +
+ x86_pmu.lbr_nr * sizeof(struct lbr_entry);
+}
+
+static bool is_arch_lbr_xsave_available(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_XSAVES))
+ return false;
+
+ /*
+ * Check the LBR state with the corresponding software structure.
+ * Disable LBR XSAVES support if the size doesn't match.
+ */
+ if (xfeature_size(XFEATURE_LBR) == 0)
+ return false;
+
+ if (WARN_ON(xfeature_size(XFEATURE_LBR) != get_lbr_state_size()))
+ return false;
+
+ return true;
+}
+
+void __init intel_pmu_arch_lbr_init(void)
+{
+ struct pmu *pmu = x86_get_pmu(smp_processor_id());
+ union cpuid28_eax eax;
+ union cpuid28_ebx ebx;
+ union cpuid28_ecx ecx;
+ unsigned int unused_edx;
+ bool arch_lbr_xsave;
+ size_t size;
+ u64 lbr_nr;
+
+ /* Arch LBR Capabilities */
+ cpuid(28, &eax.full, &ebx.full, &ecx.full, &unused_edx);
+
+ lbr_nr = fls(eax.split.lbr_depth_mask) * 8;
+ if (!lbr_nr)
+ goto clear_arch_lbr;
+
+ /* Apply the max depth of Arch LBR */
+ if (wrmsrl_safe(MSR_ARCH_LBR_DEPTH, lbr_nr))
+ goto clear_arch_lbr;
+
+ x86_pmu.lbr_depth_mask = eax.split.lbr_depth_mask;
+ x86_pmu.lbr_deep_c_reset = eax.split.lbr_deep_c_reset;
+ x86_pmu.lbr_lip = eax.split.lbr_lip;
+ x86_pmu.lbr_cpl = ebx.split.lbr_cpl;
+ x86_pmu.lbr_filter = ebx.split.lbr_filter;
+ x86_pmu.lbr_call_stack = ebx.split.lbr_call_stack;
+ x86_pmu.lbr_mispred = ecx.split.lbr_mispred;
+ x86_pmu.lbr_timed_lbr = ecx.split.lbr_timed_lbr;
+ x86_pmu.lbr_br_type = ecx.split.lbr_br_type;
+ x86_pmu.lbr_nr = lbr_nr;
+
+ if (x86_pmu.lbr_mispred)
+ static_branch_enable(&x86_lbr_mispred);
+ if (x86_pmu.lbr_timed_lbr)
+ static_branch_enable(&x86_lbr_cycles);
+ if (x86_pmu.lbr_br_type)
+ static_branch_enable(&x86_lbr_type);
+
+ arch_lbr_xsave = is_arch_lbr_xsave_available();
+ if (arch_lbr_xsave) {
+ size = sizeof(struct x86_perf_task_context_arch_lbr_xsave) +
+ get_lbr_state_size();
+ pmu->task_ctx_cache = create_lbr_kmem_cache(size,
+ XSAVE_ALIGNMENT);
+ }
+
+ if (!pmu->task_ctx_cache) {
+ arch_lbr_xsave = false;
+
+ size = sizeof(struct x86_perf_task_context_arch_lbr) +
+ lbr_nr * sizeof(struct lbr_entry);
+ pmu->task_ctx_cache = create_lbr_kmem_cache(size, 0);
+ }
+
+ x86_pmu.lbr_from = MSR_ARCH_LBR_FROM_0;
+ x86_pmu.lbr_to = MSR_ARCH_LBR_TO_0;
+ x86_pmu.lbr_info = MSR_ARCH_LBR_INFO_0;
+
+ /* LBR callstack requires both CPL and Branch Filtering support */
+ if (!x86_pmu.lbr_cpl ||
+ !x86_pmu.lbr_filter ||
+ !x86_pmu.lbr_call_stack)
+ arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT] = LBR_NOT_SUPP;
+
+ if (!x86_pmu.lbr_cpl) {
+ arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_USER_SHIFT] = LBR_NOT_SUPP;
+ arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_KERNEL_SHIFT] = LBR_NOT_SUPP;
+ } else if (!x86_pmu.lbr_filter) {
+ arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_ANY_SHIFT] = LBR_NOT_SUPP;
+ arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_ANY_RETURN_SHIFT] = LBR_NOT_SUPP;
+ arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_ANY_CALL_SHIFT] = LBR_NOT_SUPP;
+ arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_IND_CALL_SHIFT] = LBR_NOT_SUPP;
+ arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_COND_SHIFT] = LBR_NOT_SUPP;
+ arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_IND_JUMP_SHIFT] = LBR_NOT_SUPP;
+ arch_lbr_ctl_map[PERF_SAMPLE_BRANCH_CALL_SHIFT] = LBR_NOT_SUPP;
+ }
+
+ x86_pmu.lbr_ctl_mask = ARCH_LBR_CTL_MASK;
+ x86_pmu.lbr_ctl_map = arch_lbr_ctl_map;
+
+ if (!x86_pmu.lbr_cpl && !x86_pmu.lbr_filter)
+ x86_pmu.lbr_ctl_map = NULL;
+
+ x86_pmu.lbr_reset = intel_pmu_arch_lbr_reset;
+ if (arch_lbr_xsave) {
+ x86_pmu.lbr_save = intel_pmu_arch_lbr_xsaves;
+ x86_pmu.lbr_restore = intel_pmu_arch_lbr_xrstors;
+ x86_pmu.lbr_read = intel_pmu_arch_lbr_read_xsave;
+ pr_cont("XSAVE ");
+ } else {
+ x86_pmu.lbr_save = intel_pmu_arch_lbr_save;
+ x86_pmu.lbr_restore = intel_pmu_arch_lbr_restore;
+ x86_pmu.lbr_read = intel_pmu_arch_lbr_read;
+ }
+
+ pr_cont("Architectural LBR, ");
+
+ return;
+
+clear_arch_lbr:
+ setup_clear_cpu_cap(X86_FEATURE_ARCH_LBR);
+}
+
+/**
+ * x86_perf_get_lbr - get the LBR records information
+ *
+ * @lbr: the caller's memory to store the LBR records information
+ */
+void x86_perf_get_lbr(struct x86_pmu_lbr *lbr)
+{
+ lbr->nr = x86_pmu.lbr_nr;
+ lbr->from = x86_pmu.lbr_from;
+ lbr->to = x86_pmu.lbr_to;
+ lbr->info = x86_pmu.lbr_info;
+}
+EXPORT_SYMBOL_GPL(x86_perf_get_lbr);
+
+struct event_constraint vlbr_constraint =
+ __EVENT_CONSTRAINT(INTEL_FIXED_VLBR_EVENT, (1ULL << INTEL_PMC_IDX_FIXED_VLBR),
+ FIXED_EVENT_FLAGS, 1, 0, PERF_X86_EVENT_LBR_SELECT);
diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/events/intel/p4.c
index d1f77e2934a1..35936188db01 100644
--- a/arch/x86/kernel/cpu/perf_event_p4.c
+++ b/arch/x86/events/intel/p4.c
@@ -7,9 +7,13 @@
* For licencing details see kernel-base/COPYING
*/
-#ifdef CONFIG_CPU_SUP_INTEL
+#include <linux/perf_event.h>
#include <asm/perf_event_p4.h>
+#include <asm/hardirq.h>
+#include <asm/apic.h>
+
+#include "../perf_event.h"
#define P4_CNTR_LIMIT 3
/*
@@ -20,7 +24,7 @@ struct p4_event_bind {
unsigned int escr_msr[2]; /* ESCR MSR for this event */
unsigned int escr_emask; /* valid ESCR EventMask bits */
unsigned int shared; /* event is shared across threads */
- char cntr[2][P4_CNTR_LIMIT]; /* counter index (offset), -1 on abscence */
+ signed char cntr[2][P4_CNTR_LIMIT]; /* counter index (offset), -1 on absence */
};
struct p4_pebs_bind {
@@ -41,7 +45,7 @@ struct p4_pebs_bind {
* it's needed for mapping P4_PEBS_CONFIG_METRIC_MASK bits of
* event configuration to find out which values are to be
* written into MSR_IA32_PEBS_ENABLE and MSR_P4_PEBS_MATRIX_VERT
- * resgisters
+ * registers
*/
static struct p4_pebs_bind p4_pebs_bind_map[] = {
P4_GEN_PEBS_BIND(1stl_cache_load_miss_retired, 0x0000001, 0x0000001),
@@ -468,7 +472,7 @@ static struct p4_event_bind p4_event_bind_map[] = {
.opcode = P4_OPCODE(P4_EVENT_MISPRED_BRANCH_RETIRED),
.escr_msr = { MSR_P4_CRU_ESCR0, MSR_P4_CRU_ESCR1 },
.escr_emask =
- P4_ESCR_EMASK_BIT(P4_EVENT_MISPRED_BRANCH_RETIRED, NBOGUS),
+ P4_ESCR_EMASK_BIT(P4_EVENT_MISPRED_BRANCH_RETIRED, NBOGUS),
.cntr = { {12, 13, 16}, {14, 15, 17} },
},
[P4_EVENT_X87_ASSIST] = {
@@ -554,13 +558,102 @@ static __initconst const u64 p4_hw_cache_event_ids
[ C(RESULT_MISS) ] = -1,
},
},
+ [ C(NODE) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+};
+
+/*
+ * Because of Netburst being quite restricted in how many
+ * identical events may run simultaneously, we introduce event aliases,
+ * ie the different events which have the same functionality but
+ * utilize non-intersected resources (ESCR/CCCR/counter registers).
+ *
+ * This allow us to relax restrictions a bit and run two or more
+ * identical events together.
+ *
+ * Never set any custom internal bits such as P4_CONFIG_HT,
+ * P4_CONFIG_ALIASABLE or bits for P4_PEBS_METRIC, they are
+ * either up to date automatically or not applicable at all.
+ */
+static struct p4_event_alias {
+ u64 original;
+ u64 alternative;
+} p4_event_aliases[] = {
+ {
+ /*
+ * Non-halted cycles can be substituted with non-sleeping cycles (see
+ * Intel SDM Vol3b for details). We need this alias to be able
+ * to run nmi-watchdog and 'perf top' (or any other user space tool
+ * which is interested in running PERF_COUNT_HW_CPU_CYCLES)
+ * simultaneously.
+ */
+ .original =
+ p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_GLOBAL_POWER_EVENTS) |
+ P4_ESCR_EMASK_BIT(P4_EVENT_GLOBAL_POWER_EVENTS, RUNNING)),
+ .alternative =
+ p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_EXECUTION_EVENT) |
+ P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS0)|
+ P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS1)|
+ P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS2)|
+ P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, NBOGUS3)|
+ P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS0) |
+ P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS1) |
+ P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS2) |
+ P4_ESCR_EMASK_BIT(P4_EVENT_EXECUTION_EVENT, BOGUS3))|
+ p4_config_pack_cccr(P4_CCCR_THRESHOLD(15) | P4_CCCR_COMPLEMENT |
+ P4_CCCR_COMPARE),
+ },
};
+static u64 p4_get_alias_event(u64 config)
+{
+ u64 config_match;
+ int i;
+
+ /*
+ * Only event with special mark is allowed,
+ * we're to be sure it didn't come as malformed
+ * RAW event.
+ */
+ if (!(config & P4_CONFIG_ALIASABLE))
+ return 0;
+
+ config_match = config & P4_CONFIG_EVENT_ALIAS_MASK;
+
+ for (i = 0; i < ARRAY_SIZE(p4_event_aliases); i++) {
+ if (config_match == p4_event_aliases[i].original) {
+ config_match = p4_event_aliases[i].alternative;
+ break;
+ } else if (config_match == p4_event_aliases[i].alternative) {
+ config_match = p4_event_aliases[i].original;
+ break;
+ }
+ }
+
+ if (i >= ARRAY_SIZE(p4_event_aliases))
+ return 0;
+
+ return config_match | (config & P4_CONFIG_EVENT_ALIAS_IMMUTABLE_BITS);
+}
+
static u64 p4_general_events[PERF_COUNT_HW_MAX] = {
/* non-halted CPU clocks */
[PERF_COUNT_HW_CPU_CYCLES] =
p4_config_pack_escr(P4_ESCR_EVENT(P4_EVENT_GLOBAL_POWER_EVENTS) |
- P4_ESCR_EMASK_BIT(P4_EVENT_GLOBAL_POWER_EVENTS, RUNNING)),
+ P4_ESCR_EMASK_BIT(P4_EVENT_GLOBAL_POWER_EVENTS, RUNNING)) |
+ P4_CONFIG_ALIASABLE,
/*
* retired instructions
@@ -683,8 +776,9 @@ static int p4_validate_raw_event(struct perf_event *event)
* the user needs special permissions to be able to use it
*/
if (p4_ht_active() && p4_event_bind_map[v].shared) {
- if (perf_paranoid_cpu() && !capable(CAP_SYS_ADMIN))
- return -EACCES;
+ v = perf_allow_cpu(&event->attr);
+ if (v)
+ return v;
}
/* ESCR EventMask bits may be invalid */
@@ -733,7 +827,7 @@ static int p4_hw_config(struct perf_event *event)
* Clear bits we reserve to be managed by kernel itself
* and never allowed from a user space
*/
- event->attr.config &= P4_CONFIG_MASK;
+ event->attr.config &= P4_CONFIG_MASK;
rc = p4_validate_raw_event(event);
if (rc)
@@ -802,8 +896,8 @@ static void p4_pmu_disable_pebs(void)
* So at moment let leave metrics turned on forever -- it's
* ok for now but need to be revisited!
*
- * (void)checking_wrmsrl(MSR_IA32_PEBS_ENABLE, (u64)0);
- * (void)checking_wrmsrl(MSR_P4_PEBS_MATRIX_VERT, (u64)0);
+ * (void)wrmsrl_safe(MSR_IA32_PEBS_ENABLE, 0);
+ * (void)wrmsrl_safe(MSR_P4_PEBS_MATRIX_VERT, 0);
*/
}
@@ -816,14 +910,13 @@ static inline void p4_pmu_disable_event(struct perf_event *event)
* state we need to clear P4_CCCR_OVF, otherwise interrupt get
* asserted again and again
*/
- (void)checking_wrmsrl(hwc->config_base,
- (u64)(p4_config_unpack_cccr(hwc->config)) &
- ~P4_CCCR_ENABLE & ~P4_CCCR_OVF & ~P4_CCCR_RESERVED);
+ (void)wrmsrl_safe(hwc->config_base,
+ p4_config_unpack_cccr(hwc->config) & ~P4_CCCR_ENABLE & ~P4_CCCR_OVF & ~P4_CCCR_RESERVED);
}
static void p4_pmu_disable_all(void)
{
- struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
int idx;
for (idx = 0; idx < x86_pmu.num_counters; idx++) {
@@ -850,11 +943,11 @@ static void p4_pmu_enable_pebs(u64 config)
bind = &p4_pebs_bind_map[idx];
- (void)checking_wrmsrl(MSR_IA32_PEBS_ENABLE, (u64)bind->metric_pebs);
- (void)checking_wrmsrl(MSR_P4_PEBS_MATRIX_VERT, (u64)bind->metric_vert);
+ (void)wrmsrl_safe(MSR_IA32_PEBS_ENABLE, (u64)bind->metric_pebs);
+ (void)wrmsrl_safe(MSR_P4_PEBS_MATRIX_VERT, (u64)bind->metric_vert);
}
-static void p4_pmu_enable_event(struct perf_event *event)
+static void __p4_pmu_enable_event(struct perf_event *event)
{
struct hw_perf_event *hwc = &event->hw;
int thread = p4_ht_config_thread(hwc->config);
@@ -864,7 +957,7 @@ static void p4_pmu_enable_event(struct perf_event *event)
u64 escr_addr, cccr;
bind = &p4_event_bind_map[idx];
- escr_addr = (u64)bind->escr_msr[thread];
+ escr_addr = bind->escr_msr[thread];
/*
* - we dont support cascaded counters yet
@@ -885,24 +978,57 @@ static void p4_pmu_enable_event(struct perf_event *event)
*/
p4_pmu_enable_pebs(hwc->config);
- (void)checking_wrmsrl(escr_addr, escr_conf);
- (void)checking_wrmsrl(hwc->config_base,
+ (void)wrmsrl_safe(escr_addr, escr_conf);
+ (void)wrmsrl_safe(hwc->config_base,
(cccr & ~P4_CCCR_RESERVED) | P4_CCCR_ENABLE);
}
+static DEFINE_PER_CPU(unsigned long [BITS_TO_LONGS(X86_PMC_IDX_MAX)], p4_running);
+
+static void p4_pmu_enable_event(struct perf_event *event)
+{
+ int idx = event->hw.idx;
+
+ __set_bit(idx, per_cpu(p4_running, smp_processor_id()));
+ __p4_pmu_enable_event(event);
+}
+
static void p4_pmu_enable_all(int added)
{
- struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
int idx;
for (idx = 0; idx < x86_pmu.num_counters; idx++) {
struct perf_event *event = cpuc->events[idx];
if (!test_bit(idx, cpuc->active_mask))
continue;
- p4_pmu_enable_event(event);
+ __p4_pmu_enable_event(event);
}
}
+static int p4_pmu_set_period(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ s64 left = this_cpu_read(pmc_prev_left[hwc->idx]);
+ int ret;
+
+ ret = x86_perf_event_set_period(event);
+
+ if (hwc->event_base) {
+ /*
+ * This handles erratum N15 in intel doc 249199-029,
+ * the counter may not be updated correctly on write
+ * so we need a second write operation to do the trick
+ * (the official workaround didn't work)
+ *
+ * the former idea is taken from OProfile code
+ */
+ wrmsrl(hwc->event_base, (u64)(-left) & x86_pmu.cntval_mask);
+ }
+
+ return ret;
+}
+
static int p4_pmu_handle_irq(struct pt_regs *regs)
{
struct perf_sample_data data;
@@ -912,17 +1038,14 @@ static int p4_pmu_handle_irq(struct pt_regs *regs)
int idx, handled = 0;
u64 val;
- data.addr = 0;
- data.raw = NULL;
-
- cpuc = &__get_cpu_var(cpu_hw_events);
+ cpuc = this_cpu_ptr(&cpu_hw_events);
for (idx = 0; idx < x86_pmu.num_counters; idx++) {
int overflow;
if (!test_bit(idx, cpuc->active_mask)) {
/* catch in-flight IRQs */
- if (__test_and_clear_bit(idx, cpuc->running))
+ if (__test_and_clear_bit(idx, per_cpu(p4_running, smp_processor_id())))
handled++;
continue;
}
@@ -942,19 +1065,30 @@ static int p4_pmu_handle_irq(struct pt_regs *regs)
handled += overflow;
/* event overflow for sure */
- data.period = event->hw.last_period;
+ perf_sample_data_init(&data, 0, hwc->last_period);
- if (!x86_perf_event_set_period(event))
+ if (!static_call(x86_pmu_set_period)(event))
continue;
- if (perf_event_overflow(event, 1, &data, regs))
+
+
+ if (perf_event_overflow(event, &data, regs))
x86_pmu_stop(event, 0);
}
- if (handled) {
- /* p4 quirk: unmask it again */
- apic_write(APIC_LVTPC, apic_read(APIC_LVTPC) & ~APIC_LVT_MASKED);
+ if (handled)
inc_irq_stat(apic_perf_irqs);
- }
+
+ /*
+ * When dealing with the unmasking of the LVTPC on P4 perf hw, it has
+ * been observed that the OVF bit flag has to be cleared first _before_
+ * the LVTPC can be unmasked.
+ *
+ * The reason is the NMI line will continue to be asserted while the OVF
+ * bit is set. This causes a second NMI to generate if the LVTPC is
+ * unmasked before the OVF bit is cleared, leading to unknown NMI
+ * messages.
+ */
+ apic_write(APIC_LVTPC, APIC_DM_NMI);
return handled;
}
@@ -1112,6 +1246,8 @@ static int p4_pmu_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign
struct p4_event_bind *bind;
unsigned int i, thread, num;
int cntr_idx, escr_idx;
+ u64 config_alias;
+ int pass;
bitmap_zero(used_mask, X86_PMC_IDX_MAX);
bitmap_zero(escr_mask, P4_ESCR_MSR_TABLE_SIZE);
@@ -1120,6 +1256,17 @@ static int p4_pmu_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign
hwc = &cpuc->event_list[i]->hw;
thread = p4_ht_thread(cpu);
+ pass = 0;
+
+again:
+ /*
+ * It's possible to hit a circular lock
+ * between original and alternative events
+ * if both are scheduled already.
+ */
+ if (pass > 2)
+ goto done;
+
bind = p4_config_get_bind(hwc->config);
escr_idx = p4_get_escr_idx(bind->escr_msr[thread]);
if (unlikely(escr_idx == -1))
@@ -1133,9 +1280,35 @@ static int p4_pmu_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign
}
cntr_idx = p4_next_cntr(thread, used_mask, bind);
- if (cntr_idx == -1 || test_bit(escr_idx, escr_mask))
- goto done;
-
+ if (cntr_idx == -1 || test_bit(escr_idx, escr_mask)) {
+ /*
+ * Check whether an event alias is still available.
+ */
+ config_alias = p4_get_alias_event(hwc->config);
+ if (!config_alias)
+ goto done;
+ hwc->config = config_alias;
+ pass++;
+ goto again;
+ }
+ /*
+ * Perf does test runs to see if a whole group can be assigned
+ * together successfully. There can be multiple rounds of this.
+ * Unfortunately, p4_pmu_swap_config_ts touches the hwc->config
+ * bits, such that the next round of group assignments will
+ * cause the above p4_should_swap_ts to pass instead of fail.
+ * This leads to counters exclusive to thread0 being used by
+ * thread1.
+ *
+ * Solve this with a cheap hack, reset the idx back to -1 to
+ * force a new lookup (p4_next_cntr) to get the right counter
+ * for the right thread.
+ *
+ * This probably doesn't comply with the general spirit of how
+ * perf wants to work, but P4 is special. :-(
+ */
+ if (p4_should_swap_ts(hwc->config, cpu))
+ hwc->idx = -1;
p4_pmu_swap_config_ts(hwc, cpu);
if (assign)
assign[i] = cntr_idx;
@@ -1145,9 +1318,20 @@ reserve:
}
done:
- return num ? -ENOSPC : 0;
+ return num ? -EINVAL : 0;
}
+PMU_FORMAT_ATTR(cccr, "config:0-31" );
+PMU_FORMAT_ATTR(escr, "config:32-62");
+PMU_FORMAT_ATTR(ht, "config:63" );
+
+static struct attribute *intel_p4_formats_attr[] = {
+ &format_attr_cccr.attr,
+ &format_attr_escr.attr,
+ &format_attr_ht.attr,
+ NULL,
+};
+
static __initconst const struct x86_pmu p4_pmu = {
.name = "Netburst P4/Xeon",
.handle_irq = p4_pmu_handle_irq,
@@ -1155,6 +1339,9 @@ static __initconst const struct x86_pmu p4_pmu = {
.enable_all = p4_pmu_enable_all,
.enable = p4_pmu_enable_event,
.disable = p4_pmu_disable_event,
+
+ .set_period = p4_pmu_set_period,
+
.eventsel = MSR_P4_BPU_CCCR0,
.perfctr = MSR_P4_BPU_PERFCTR0,
.event_map = p4_pmu_event_map,
@@ -1162,7 +1349,7 @@ static __initconst const struct x86_pmu p4_pmu = {
.get_event_constraints = x86_get_event_constraints,
/*
* IF HT disabled we may need to use all
- * ARCH_P4_MAX_CCCR counters simulaneously
+ * ARCH_P4_MAX_CCCR counters simultaneously
* though leave it restricted at moment assuming
* HT is on
*/
@@ -1173,23 +1360,17 @@ static __initconst const struct x86_pmu p4_pmu = {
.max_period = (1ULL << (ARCH_P4_CNTRVAL_BITS - 1)) - 1,
.hw_config = p4_hw_config,
.schedule_events = p4_pmu_schedule_events,
- /*
- * This handles erratum N15 in intel doc 249199-029,
- * the counter may not be updated correctly on write
- * so we need a second write operation to do the trick
- * (the official workaround didn't work)
- *
- * the former idea is taken from OProfile code
- */
- .perfctr_second_write = 1,
+
+ .format_attrs = intel_p4_formats_attr,
};
-static __init int p4_pmu_init(void)
+__init int p4_pmu_init(void)
{
unsigned int low, high;
+ int i, reg;
- /* If we get stripped -- indexig fails */
- BUILD_BUG_ON(ARCH_P4_MAX_CCCR > X86_PMC_MAX_GENERIC);
+ /* If we get stripped -- indexing fails */
+ BUILD_BUG_ON(ARCH_P4_MAX_CCCR > INTEL_PMC_MAX_GENERIC);
rdmsr(MSR_IA32_MISC_ENABLE, low, high);
if (!(low & (1 << 7))) {
@@ -1205,7 +1386,19 @@ static __init int p4_pmu_init(void)
x86_pmu = p4_pmu;
+ /*
+ * Even though the counters are configured to interrupt a particular
+ * logical processor when an overflow happens, testing has shown that
+ * on kdump kernels (which uses a single cpu), thread1's counter
+ * continues to run and will report an NMI on thread0. Due to the
+ * overflow bug, this leads to a stream of unknown NMIs.
+ *
+ * Solve this by zero'ing out the registers to mimic a reset.
+ */
+ for (i = 0; i < x86_pmu.num_counters; i++) {
+ reg = x86_pmu_config_addr(i);
+ wrmsrl_safe(reg, 0ULL);
+ }
+
return 0;
}
-
-#endif /* CONFIG_CPU_SUP_INTEL */
diff --git a/arch/x86/events/intel/p6.c b/arch/x86/events/intel/p6.c
new file mode 100644
index 000000000000..408879b0c0d4
--- /dev/null
+++ b/arch/x86/events/intel/p6.c
@@ -0,0 +1,280 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/perf_event.h>
+#include <linux/types.h>
+
+#include "../perf_event.h"
+
+/*
+ * Not sure about some of these
+ */
+static const u64 p6_perfmon_event_map[] =
+{
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x0079, /* CPU_CLK_UNHALTED */
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, /* INST_RETIRED */
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0f2e, /* L2_RQSTS:M:E:S:I */
+ [PERF_COUNT_HW_CACHE_MISSES] = 0x012e, /* L2_RQSTS:I */
+ [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, /* BR_INST_RETIRED */
+ [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, /* BR_MISS_PRED_RETIRED */
+ [PERF_COUNT_HW_BUS_CYCLES] = 0x0062, /* BUS_DRDY_CLOCKS */
+ [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = 0x00a2, /* RESOURCE_STALLS */
+
+};
+
+static const u64 __initconst p6_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] =
+{
+ [ C(L1D) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0043, /* DATA_MEM_REFS */
+ [ C(RESULT_MISS) ] = 0x0045, /* DCU_LINES_IN */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0x0f29, /* L2_LD:M:E:S:I */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(L1I ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0080, /* IFU_IFETCH */
+ [ C(RESULT_MISS) ] = 0x0f28, /* L2_IFETCH:M:E:S:I */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(LL ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0x0025, /* L2_M_LINES_INM */
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(DTLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0043, /* DATA_MEM_REFS */
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = 0,
+ [ C(RESULT_MISS) ] = 0,
+ },
+ },
+ [ C(ITLB) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x0080, /* IFU_IFETCH */
+ [ C(RESULT_MISS) ] = 0x0085, /* ITLB_MISS */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+ [ C(BPU ) ] = {
+ [ C(OP_READ) ] = {
+ [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED */
+ [ C(RESULT_MISS) ] = 0x00c5, /* BR_MISS_PRED_RETIRED */
+ },
+ [ C(OP_WRITE) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ [ C(OP_PREFETCH) ] = {
+ [ C(RESULT_ACCESS) ] = -1,
+ [ C(RESULT_MISS) ] = -1,
+ },
+ },
+};
+
+static u64 p6_pmu_event_map(int hw_event)
+{
+ return p6_perfmon_event_map[hw_event];
+}
+
+/*
+ * Event setting that is specified not to count anything.
+ * We use this to effectively disable a counter.
+ *
+ * L2_RQSTS with 0 MESI unit mask.
+ */
+#define P6_NOP_EVENT 0x0000002EULL
+
+static struct event_constraint p6_event_constraints[] =
+{
+ INTEL_EVENT_CONSTRAINT(0xc1, 0x1), /* FLOPS */
+ INTEL_EVENT_CONSTRAINT(0x10, 0x1), /* FP_COMP_OPS_EXE */
+ INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */
+ INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */
+ INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */
+ INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */
+ EVENT_CONSTRAINT_END
+};
+
+static void p6_pmu_disable_all(void)
+{
+ u64 val;
+
+ /* p6 only has one enable register */
+ rdmsrl(MSR_P6_EVNTSEL0, val);
+ val &= ~ARCH_PERFMON_EVENTSEL_ENABLE;
+ wrmsrl(MSR_P6_EVNTSEL0, val);
+}
+
+static void p6_pmu_enable_all(int added)
+{
+ unsigned long val;
+
+ /* p6 only has one enable register */
+ rdmsrl(MSR_P6_EVNTSEL0, val);
+ val |= ARCH_PERFMON_EVENTSEL_ENABLE;
+ wrmsrl(MSR_P6_EVNTSEL0, val);
+}
+
+static inline void
+p6_pmu_disable_event(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ u64 val = P6_NOP_EVENT;
+
+ (void)wrmsrl_safe(hwc->config_base, val);
+}
+
+static void p6_pmu_enable_event(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ u64 val;
+
+ val = hwc->config;
+
+ /*
+ * p6 only has a global event enable, set on PerfEvtSel0
+ * We "disable" events by programming P6_NOP_EVENT
+ * and we rely on p6_pmu_enable_all() being called
+ * to actually enable the events.
+ */
+
+ (void)wrmsrl_safe(hwc->config_base, val);
+}
+
+PMU_FORMAT_ATTR(event, "config:0-7" );
+PMU_FORMAT_ATTR(umask, "config:8-15" );
+PMU_FORMAT_ATTR(edge, "config:18" );
+PMU_FORMAT_ATTR(pc, "config:19" );
+PMU_FORMAT_ATTR(inv, "config:23" );
+PMU_FORMAT_ATTR(cmask, "config:24-31" );
+
+static struct attribute *intel_p6_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_pc.attr,
+ &format_attr_inv.attr,
+ &format_attr_cmask.attr,
+ NULL,
+};
+
+static __initconst const struct x86_pmu p6_pmu = {
+ .name = "p6",
+ .handle_irq = x86_pmu_handle_irq,
+ .disable_all = p6_pmu_disable_all,
+ .enable_all = p6_pmu_enable_all,
+ .enable = p6_pmu_enable_event,
+ .disable = p6_pmu_disable_event,
+ .hw_config = x86_pmu_hw_config,
+ .schedule_events = x86_schedule_events,
+ .eventsel = MSR_P6_EVNTSEL0,
+ .perfctr = MSR_P6_PERFCTR0,
+ .event_map = p6_pmu_event_map,
+ .max_events = ARRAY_SIZE(p6_perfmon_event_map),
+ .apic = 1,
+ .max_period = (1ULL << 31) - 1,
+ .version = 0,
+ .num_counters = 2,
+ /*
+ * Events have 40 bits implemented. However they are designed such
+ * that bits [32-39] are sign extensions of bit 31. As such the
+ * effective width of a event for P6-like PMU is 32 bits only.
+ *
+ * See IA-32 Intel Architecture Software developer manual Vol 3B
+ */
+ .cntval_bits = 32,
+ .cntval_mask = (1ULL << 32) - 1,
+ .get_event_constraints = x86_get_event_constraints,
+ .event_constraints = p6_event_constraints,
+
+ .format_attrs = intel_p6_formats_attr,
+ .events_sysfs_show = intel_event_sysfs_show,
+
+};
+
+static __init void p6_pmu_rdpmc_quirk(void)
+{
+ if (boot_cpu_data.x86_stepping < 9) {
+ /*
+ * PPro erratum 26; fixed in stepping 9 and above.
+ */
+ pr_warn("Userspace RDPMC support disabled due to a CPU erratum\n");
+ x86_pmu.attr_rdpmc_broken = 1;
+ x86_pmu.attr_rdpmc = 0;
+ }
+}
+
+__init int p6_pmu_init(void)
+{
+ x86_pmu = p6_pmu;
+
+ switch (boot_cpu_data.x86_model) {
+ case 1: /* Pentium Pro */
+ x86_add_quirk(p6_pmu_rdpmc_quirk);
+ break;
+
+ case 3: /* Pentium II - Klamath */
+ case 5: /* Pentium II - Deschutes */
+ case 6: /* Pentium II - Mendocino */
+ break;
+
+ case 7: /* Pentium III - Katmai */
+ case 8: /* Pentium III - Coppermine */
+ case 10: /* Pentium III Xeon */
+ case 11: /* Pentium III - Tualatin */
+ break;
+
+ case 9: /* Pentium M - Banias */
+ case 13: /* Pentium M - Dothan */
+ break;
+
+ default:
+ pr_cont("unsupported p6 CPU model %d ", boot_cpu_data.x86_model);
+ return -ENODEV;
+ }
+
+ memcpy(hw_cache_event_ids, p6_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+
+ return 0;
+}
diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c
new file mode 100644
index 000000000000..42a55794004a
--- /dev/null
+++ b/arch/x86/events/intel/pt.c
@@ -0,0 +1,1814 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Intel(R) Processor Trace PMU driver for perf
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * Intel PT is specified in the Intel Architecture Instruction Set Extensions
+ * Programming Reference:
+ * http://software.intel.com/en-us/intel-isa-extensions
+ */
+
+#undef DEBUG
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/types.h>
+#include <linux/bits.h>
+#include <linux/limits.h>
+#include <linux/slab.h>
+#include <linux/device.h>
+
+#include <asm/perf_event.h>
+#include <asm/insn.h>
+#include <asm/io.h>
+#include <asm/intel_pt.h>
+#include <asm/intel-family.h>
+
+#include "../perf_event.h"
+#include "pt.h"
+
+static DEFINE_PER_CPU(struct pt, pt_ctx);
+
+static struct pt_pmu pt_pmu;
+
+/*
+ * Capabilities of Intel PT hardware, such as number of address bits or
+ * supported output schemes, are cached and exported to userspace as "caps"
+ * attribute group of pt pmu device
+ * (/sys/bus/event_source/devices/intel_pt/caps/) so that userspace can store
+ * relevant bits together with intel_pt traces.
+ *
+ * These are necessary for both trace decoding (payloads_lip, contains address
+ * width encoded in IP-related packets), and event configuration (bitmasks with
+ * permitted values for certain bit fields).
+ */
+#define PT_CAP(_n, _l, _r, _m) \
+ [PT_CAP_ ## _n] = { .name = __stringify(_n), .leaf = _l, \
+ .reg = _r, .mask = _m }
+
+static struct pt_cap_desc {
+ const char *name;
+ u32 leaf;
+ u8 reg;
+ u32 mask;
+} pt_caps[] = {
+ PT_CAP(max_subleaf, 0, CPUID_EAX, 0xffffffff),
+ PT_CAP(cr3_filtering, 0, CPUID_EBX, BIT(0)),
+ PT_CAP(psb_cyc, 0, CPUID_EBX, BIT(1)),
+ PT_CAP(ip_filtering, 0, CPUID_EBX, BIT(2)),
+ PT_CAP(mtc, 0, CPUID_EBX, BIT(3)),
+ PT_CAP(ptwrite, 0, CPUID_EBX, BIT(4)),
+ PT_CAP(power_event_trace, 0, CPUID_EBX, BIT(5)),
+ PT_CAP(event_trace, 0, CPUID_EBX, BIT(7)),
+ PT_CAP(tnt_disable, 0, CPUID_EBX, BIT(8)),
+ PT_CAP(topa_output, 0, CPUID_ECX, BIT(0)),
+ PT_CAP(topa_multiple_entries, 0, CPUID_ECX, BIT(1)),
+ PT_CAP(single_range_output, 0, CPUID_ECX, BIT(2)),
+ PT_CAP(output_subsys, 0, CPUID_ECX, BIT(3)),
+ PT_CAP(payloads_lip, 0, CPUID_ECX, BIT(31)),
+ PT_CAP(num_address_ranges, 1, CPUID_EAX, 0x7),
+ PT_CAP(mtc_periods, 1, CPUID_EAX, 0xffff0000),
+ PT_CAP(cycle_thresholds, 1, CPUID_EBX, 0xffff),
+ PT_CAP(psb_periods, 1, CPUID_EBX, 0xffff0000),
+};
+
+u32 intel_pt_validate_cap(u32 *caps, enum pt_capabilities capability)
+{
+ struct pt_cap_desc *cd = &pt_caps[capability];
+ u32 c = caps[cd->leaf * PT_CPUID_REGS_NUM + cd->reg];
+ unsigned int shift = __ffs(cd->mask);
+
+ return (c & cd->mask) >> shift;
+}
+EXPORT_SYMBOL_GPL(intel_pt_validate_cap);
+
+u32 intel_pt_validate_hw_cap(enum pt_capabilities cap)
+{
+ return intel_pt_validate_cap(pt_pmu.caps, cap);
+}
+EXPORT_SYMBOL_GPL(intel_pt_validate_hw_cap);
+
+static ssize_t pt_cap_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct dev_ext_attribute *ea =
+ container_of(attr, struct dev_ext_attribute, attr);
+ enum pt_capabilities cap = (long)ea->var;
+
+ return snprintf(buf, PAGE_SIZE, "%x\n", intel_pt_validate_hw_cap(cap));
+}
+
+static struct attribute_group pt_cap_group __ro_after_init = {
+ .name = "caps",
+};
+
+PMU_FORMAT_ATTR(pt, "config:0" );
+PMU_FORMAT_ATTR(cyc, "config:1" );
+PMU_FORMAT_ATTR(pwr_evt, "config:4" );
+PMU_FORMAT_ATTR(fup_on_ptw, "config:5" );
+PMU_FORMAT_ATTR(mtc, "config:9" );
+PMU_FORMAT_ATTR(tsc, "config:10" );
+PMU_FORMAT_ATTR(noretcomp, "config:11" );
+PMU_FORMAT_ATTR(ptw, "config:12" );
+PMU_FORMAT_ATTR(branch, "config:13" );
+PMU_FORMAT_ATTR(event, "config:31" );
+PMU_FORMAT_ATTR(notnt, "config:55" );
+PMU_FORMAT_ATTR(mtc_period, "config:14-17" );
+PMU_FORMAT_ATTR(cyc_thresh, "config:19-22" );
+PMU_FORMAT_ATTR(psb_period, "config:24-27" );
+
+static struct attribute *pt_formats_attr[] = {
+ &format_attr_pt.attr,
+ &format_attr_cyc.attr,
+ &format_attr_pwr_evt.attr,
+ &format_attr_event.attr,
+ &format_attr_notnt.attr,
+ &format_attr_fup_on_ptw.attr,
+ &format_attr_mtc.attr,
+ &format_attr_tsc.attr,
+ &format_attr_noretcomp.attr,
+ &format_attr_ptw.attr,
+ &format_attr_branch.attr,
+ &format_attr_mtc_period.attr,
+ &format_attr_cyc_thresh.attr,
+ &format_attr_psb_period.attr,
+ NULL,
+};
+
+static struct attribute_group pt_format_group = {
+ .name = "format",
+ .attrs = pt_formats_attr,
+};
+
+static ssize_t
+pt_timing_attr_show(struct device *dev, struct device_attribute *attr,
+ char *page)
+{
+ struct perf_pmu_events_attr *pmu_attr =
+ container_of(attr, struct perf_pmu_events_attr, attr);
+
+ switch (pmu_attr->id) {
+ case 0:
+ return sprintf(page, "%lu\n", pt_pmu.max_nonturbo_ratio);
+ case 1:
+ return sprintf(page, "%u:%u\n",
+ pt_pmu.tsc_art_num,
+ pt_pmu.tsc_art_den);
+ default:
+ break;
+ }
+
+ return -EINVAL;
+}
+
+PMU_EVENT_ATTR(max_nonturbo_ratio, timing_attr_max_nonturbo_ratio, 0,
+ pt_timing_attr_show);
+PMU_EVENT_ATTR(tsc_art_ratio, timing_attr_tsc_art_ratio, 1,
+ pt_timing_attr_show);
+
+static struct attribute *pt_timing_attr[] = {
+ &timing_attr_max_nonturbo_ratio.attr.attr,
+ &timing_attr_tsc_art_ratio.attr.attr,
+ NULL,
+};
+
+static struct attribute_group pt_timing_group = {
+ .attrs = pt_timing_attr,
+};
+
+static const struct attribute_group *pt_attr_groups[] = {
+ &pt_cap_group,
+ &pt_format_group,
+ &pt_timing_group,
+ NULL,
+};
+
+static int __init pt_pmu_hw_init(void)
+{
+ struct dev_ext_attribute *de_attrs;
+ struct attribute **attrs;
+ size_t size;
+ u64 reg;
+ int ret;
+ long i;
+
+ rdmsrl(MSR_PLATFORM_INFO, reg);
+ pt_pmu.max_nonturbo_ratio = (reg & 0xff00) >> 8;
+
+ /*
+ * if available, read in TSC to core crystal clock ratio,
+ * otherwise, zero for numerator stands for "not enumerated"
+ * as per SDM
+ */
+ if (boot_cpu_data.cpuid_level >= CPUID_TSC_LEAF) {
+ u32 eax, ebx, ecx, edx;
+
+ cpuid(CPUID_TSC_LEAF, &eax, &ebx, &ecx, &edx);
+
+ pt_pmu.tsc_art_num = ebx;
+ pt_pmu.tsc_art_den = eax;
+ }
+
+ /* model-specific quirks */
+ switch (boot_cpu_data.x86_model) {
+ case INTEL_FAM6_BROADWELL:
+ case INTEL_FAM6_BROADWELL_D:
+ case INTEL_FAM6_BROADWELL_G:
+ case INTEL_FAM6_BROADWELL_X:
+ /* not setting BRANCH_EN will #GP, erratum BDM106 */
+ pt_pmu.branch_en_always_on = true;
+ break;
+ default:
+ break;
+ }
+
+ if (boot_cpu_has(X86_FEATURE_VMX)) {
+ /*
+ * Intel SDM, 36.5 "Tracing post-VMXON" says that
+ * "IA32_VMX_MISC[bit 14]" being 1 means PT can trace
+ * post-VMXON.
+ */
+ rdmsrl(MSR_IA32_VMX_MISC, reg);
+ if (reg & BIT(14))
+ pt_pmu.vmx = true;
+ }
+
+ for (i = 0; i < PT_CPUID_LEAVES; i++) {
+ cpuid_count(20, i,
+ &pt_pmu.caps[CPUID_EAX + i*PT_CPUID_REGS_NUM],
+ &pt_pmu.caps[CPUID_EBX + i*PT_CPUID_REGS_NUM],
+ &pt_pmu.caps[CPUID_ECX + i*PT_CPUID_REGS_NUM],
+ &pt_pmu.caps[CPUID_EDX + i*PT_CPUID_REGS_NUM]);
+ }
+
+ ret = -ENOMEM;
+ size = sizeof(struct attribute *) * (ARRAY_SIZE(pt_caps)+1);
+ attrs = kzalloc(size, GFP_KERNEL);
+ if (!attrs)
+ goto fail;
+
+ size = sizeof(struct dev_ext_attribute) * (ARRAY_SIZE(pt_caps)+1);
+ de_attrs = kzalloc(size, GFP_KERNEL);
+ if (!de_attrs)
+ goto fail;
+
+ for (i = 0; i < ARRAY_SIZE(pt_caps); i++) {
+ struct dev_ext_attribute *de_attr = de_attrs + i;
+
+ de_attr->attr.attr.name = pt_caps[i].name;
+
+ sysfs_attr_init(&de_attr->attr.attr);
+
+ de_attr->attr.attr.mode = S_IRUGO;
+ de_attr->attr.show = pt_cap_show;
+ de_attr->var = (void *)i;
+
+ attrs[i] = &de_attr->attr.attr;
+ }
+
+ pt_cap_group.attrs = attrs;
+
+ return 0;
+
+fail:
+ kfree(attrs);
+
+ return ret;
+}
+
+#define RTIT_CTL_CYC_PSB (RTIT_CTL_CYCLEACC | \
+ RTIT_CTL_CYC_THRESH | \
+ RTIT_CTL_PSB_FREQ)
+
+#define RTIT_CTL_MTC (RTIT_CTL_MTC_EN | \
+ RTIT_CTL_MTC_RANGE)
+
+#define RTIT_CTL_PTW (RTIT_CTL_PTW_EN | \
+ RTIT_CTL_FUP_ON_PTW)
+
+/*
+ * Bit 0 (TraceEn) in the attr.config is meaningless as the
+ * corresponding bit in the RTIT_CTL can only be controlled
+ * by the driver; therefore, repurpose it to mean: pass
+ * through the bit that was previously assumed to be always
+ * on for PT, thereby allowing the user to *not* set it if
+ * they so wish. See also pt_event_valid() and pt_config().
+ */
+#define RTIT_CTL_PASSTHROUGH RTIT_CTL_TRACEEN
+
+#define PT_CONFIG_MASK (RTIT_CTL_TRACEEN | \
+ RTIT_CTL_TSC_EN | \
+ RTIT_CTL_DISRETC | \
+ RTIT_CTL_BRANCH_EN | \
+ RTIT_CTL_CYC_PSB | \
+ RTIT_CTL_MTC | \
+ RTIT_CTL_PWR_EVT_EN | \
+ RTIT_CTL_EVENT_EN | \
+ RTIT_CTL_NOTNT | \
+ RTIT_CTL_FUP_ON_PTW | \
+ RTIT_CTL_PTW_EN)
+
+static bool pt_event_valid(struct perf_event *event)
+{
+ u64 config = event->attr.config;
+ u64 allowed, requested;
+
+ if ((config & PT_CONFIG_MASK) != config)
+ return false;
+
+ if (config & RTIT_CTL_CYC_PSB) {
+ if (!intel_pt_validate_hw_cap(PT_CAP_psb_cyc))
+ return false;
+
+ allowed = intel_pt_validate_hw_cap(PT_CAP_psb_periods);
+ requested = (config & RTIT_CTL_PSB_FREQ) >>
+ RTIT_CTL_PSB_FREQ_OFFSET;
+ if (requested && (!(allowed & BIT(requested))))
+ return false;
+
+ allowed = intel_pt_validate_hw_cap(PT_CAP_cycle_thresholds);
+ requested = (config & RTIT_CTL_CYC_THRESH) >>
+ RTIT_CTL_CYC_THRESH_OFFSET;
+ if (requested && (!(allowed & BIT(requested))))
+ return false;
+ }
+
+ if (config & RTIT_CTL_MTC) {
+ /*
+ * In the unlikely case that CPUID lists valid mtc periods,
+ * but not the mtc capability, drop out here.
+ *
+ * Spec says that setting mtc period bits while mtc bit in
+ * CPUID is 0 will #GP, so better safe than sorry.
+ */
+ if (!intel_pt_validate_hw_cap(PT_CAP_mtc))
+ return false;
+
+ allowed = intel_pt_validate_hw_cap(PT_CAP_mtc_periods);
+ if (!allowed)
+ return false;
+
+ requested = (config & RTIT_CTL_MTC_RANGE) >>
+ RTIT_CTL_MTC_RANGE_OFFSET;
+
+ if (!(allowed & BIT(requested)))
+ return false;
+ }
+
+ if (config & RTIT_CTL_PWR_EVT_EN &&
+ !intel_pt_validate_hw_cap(PT_CAP_power_event_trace))
+ return false;
+
+ if (config & RTIT_CTL_EVENT_EN &&
+ !intel_pt_validate_hw_cap(PT_CAP_event_trace))
+ return false;
+
+ if (config & RTIT_CTL_NOTNT &&
+ !intel_pt_validate_hw_cap(PT_CAP_tnt_disable))
+ return false;
+
+ if (config & RTIT_CTL_PTW) {
+ if (!intel_pt_validate_hw_cap(PT_CAP_ptwrite))
+ return false;
+
+ /* FUPonPTW without PTW doesn't make sense */
+ if ((config & RTIT_CTL_FUP_ON_PTW) &&
+ !(config & RTIT_CTL_PTW_EN))
+ return false;
+ }
+
+ /*
+ * Setting bit 0 (TraceEn in RTIT_CTL MSR) in the attr.config
+ * clears the assumption that BranchEn must always be enabled,
+ * as was the case with the first implementation of PT.
+ * If this bit is not set, the legacy behavior is preserved
+ * for compatibility with the older userspace.
+ *
+ * Re-using bit 0 for this purpose is fine because it is never
+ * directly set by the user; previous attempts at setting it in
+ * the attr.config resulted in -EINVAL.
+ */
+ if (config & RTIT_CTL_PASSTHROUGH) {
+ /*
+ * Disallow not setting BRANCH_EN where BRANCH_EN is
+ * always required.
+ */
+ if (pt_pmu.branch_en_always_on &&
+ !(config & RTIT_CTL_BRANCH_EN))
+ return false;
+ } else {
+ /*
+ * Disallow BRANCH_EN without the PASSTHROUGH.
+ */
+ if (config & RTIT_CTL_BRANCH_EN)
+ return false;
+ }
+
+ return true;
+}
+
+/*
+ * PT configuration helpers
+ * These all are cpu affine and operate on a local PT
+ */
+
+static void pt_config_start(struct perf_event *event)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ u64 ctl = event->hw.config;
+
+ ctl |= RTIT_CTL_TRACEEN;
+ if (READ_ONCE(pt->vmx_on))
+ perf_aux_output_flag(&pt->handle, PERF_AUX_FLAG_PARTIAL);
+ else
+ wrmsrl(MSR_IA32_RTIT_CTL, ctl);
+
+ WRITE_ONCE(event->hw.config, ctl);
+}
+
+/* Address ranges and their corresponding msr configuration registers */
+static const struct pt_address_range {
+ unsigned long msr_a;
+ unsigned long msr_b;
+ unsigned int reg_off;
+} pt_address_ranges[] = {
+ {
+ .msr_a = MSR_IA32_RTIT_ADDR0_A,
+ .msr_b = MSR_IA32_RTIT_ADDR0_B,
+ .reg_off = RTIT_CTL_ADDR0_OFFSET,
+ },
+ {
+ .msr_a = MSR_IA32_RTIT_ADDR1_A,
+ .msr_b = MSR_IA32_RTIT_ADDR1_B,
+ .reg_off = RTIT_CTL_ADDR1_OFFSET,
+ },
+ {
+ .msr_a = MSR_IA32_RTIT_ADDR2_A,
+ .msr_b = MSR_IA32_RTIT_ADDR2_B,
+ .reg_off = RTIT_CTL_ADDR2_OFFSET,
+ },
+ {
+ .msr_a = MSR_IA32_RTIT_ADDR3_A,
+ .msr_b = MSR_IA32_RTIT_ADDR3_B,
+ .reg_off = RTIT_CTL_ADDR3_OFFSET,
+ }
+};
+
+static u64 pt_config_filters(struct perf_event *event)
+{
+ struct pt_filters *filters = event->hw.addr_filters;
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ unsigned int range = 0;
+ u64 rtit_ctl = 0;
+
+ if (!filters)
+ return 0;
+
+ perf_event_addr_filters_sync(event);
+
+ for (range = 0; range < filters->nr_filters; range++) {
+ struct pt_filter *filter = &filters->filter[range];
+
+ /*
+ * Note, if the range has zero start/end addresses due
+ * to its dynamic object not being loaded yet, we just
+ * go ahead and program zeroed range, which will simply
+ * produce no data. Note^2: if executable code at 0x0
+ * is a concern, we can set up an "invalid" configuration
+ * such as msr_b < msr_a.
+ */
+
+ /* avoid redundant msr writes */
+ if (pt->filters.filter[range].msr_a != filter->msr_a) {
+ wrmsrl(pt_address_ranges[range].msr_a, filter->msr_a);
+ pt->filters.filter[range].msr_a = filter->msr_a;
+ }
+
+ if (pt->filters.filter[range].msr_b != filter->msr_b) {
+ wrmsrl(pt_address_ranges[range].msr_b, filter->msr_b);
+ pt->filters.filter[range].msr_b = filter->msr_b;
+ }
+
+ rtit_ctl |= (u64)filter->config << pt_address_ranges[range].reg_off;
+ }
+
+ return rtit_ctl;
+}
+
+static void pt_config(struct perf_event *event)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ struct pt_buffer *buf = perf_get_aux(&pt->handle);
+ u64 reg;
+
+ /* First round: clear STATUS, in particular the PSB byte counter. */
+ if (!event->hw.config) {
+ perf_event_itrace_started(event);
+ wrmsrl(MSR_IA32_RTIT_STATUS, 0);
+ }
+
+ reg = pt_config_filters(event);
+ reg |= RTIT_CTL_TRACEEN;
+ if (!buf->single)
+ reg |= RTIT_CTL_TOPA;
+
+ /*
+ * Previously, we had BRANCH_EN on by default, but now that PT has
+ * grown features outside of branch tracing, it is useful to allow
+ * the user to disable it. Setting bit 0 in the event's attr.config
+ * allows BRANCH_EN to pass through instead of being always on. See
+ * also the comment in pt_event_valid().
+ */
+ if (event->attr.config & BIT(0)) {
+ reg |= event->attr.config & RTIT_CTL_BRANCH_EN;
+ } else {
+ reg |= RTIT_CTL_BRANCH_EN;
+ }
+
+ if (!event->attr.exclude_kernel)
+ reg |= RTIT_CTL_OS;
+ if (!event->attr.exclude_user)
+ reg |= RTIT_CTL_USR;
+
+ reg |= (event->attr.config & PT_CONFIG_MASK);
+
+ event->hw.config = reg;
+ pt_config_start(event);
+}
+
+static void pt_config_stop(struct perf_event *event)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ u64 ctl = READ_ONCE(event->hw.config);
+
+ /* may be already stopped by a PMI */
+ if (!(ctl & RTIT_CTL_TRACEEN))
+ return;
+
+ ctl &= ~RTIT_CTL_TRACEEN;
+ if (!READ_ONCE(pt->vmx_on))
+ wrmsrl(MSR_IA32_RTIT_CTL, ctl);
+
+ WRITE_ONCE(event->hw.config, ctl);
+
+ /*
+ * A wrmsr that disables trace generation serializes other PT
+ * registers and causes all data packets to be written to memory,
+ * but a fence is required for the data to become globally visible.
+ *
+ * The below WMB, separating data store and aux_head store matches
+ * the consumer's RMB that separates aux_head load and data load.
+ */
+ wmb();
+}
+
+/**
+ * struct topa - ToPA metadata
+ * @list: linkage to struct pt_buffer's list of tables
+ * @offset: offset of the first entry in this table in the buffer
+ * @size: total size of all entries in this table
+ * @last: index of the last initialized entry in this table
+ * @z_count: how many times the first entry repeats
+ */
+struct topa {
+ struct list_head list;
+ u64 offset;
+ size_t size;
+ int last;
+ unsigned int z_count;
+};
+
+/*
+ * Keep ToPA table-related metadata on the same page as the actual table,
+ * taking up a few words from the top
+ */
+
+#define TENTS_PER_PAGE \
+ ((PAGE_SIZE - sizeof(struct topa)) / sizeof(struct topa_entry))
+
+/**
+ * struct topa_page - page-sized ToPA table with metadata at the top
+ * @table: actual ToPA table entries, as understood by PT hardware
+ * @topa: metadata
+ */
+struct topa_page {
+ struct topa_entry table[TENTS_PER_PAGE];
+ struct topa topa;
+};
+
+static inline struct topa_page *topa_to_page(struct topa *topa)
+{
+ return container_of(topa, struct topa_page, topa);
+}
+
+static inline struct topa_page *topa_entry_to_page(struct topa_entry *te)
+{
+ return (struct topa_page *)((unsigned long)te & PAGE_MASK);
+}
+
+static inline phys_addr_t topa_pfn(struct topa *topa)
+{
+ return PFN_DOWN(virt_to_phys(topa_to_page(topa)));
+}
+
+/* make -1 stand for the last table entry */
+#define TOPA_ENTRY(t, i) \
+ ((i) == -1 \
+ ? &topa_to_page(t)->table[(t)->last] \
+ : &topa_to_page(t)->table[(i)])
+#define TOPA_ENTRY_SIZE(t, i) (sizes(TOPA_ENTRY((t), (i))->size))
+#define TOPA_ENTRY_PAGES(t, i) (1 << TOPA_ENTRY((t), (i))->size)
+
+static void pt_config_buffer(struct pt_buffer *buf)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ u64 reg, mask;
+ void *base;
+
+ if (buf->single) {
+ base = buf->data_pages[0];
+ mask = (buf->nr_pages * PAGE_SIZE - 1) >> 7;
+ } else {
+ base = topa_to_page(buf->cur)->table;
+ mask = (u64)buf->cur_idx;
+ }
+
+ reg = virt_to_phys(base);
+ if (pt->output_base != reg) {
+ pt->output_base = reg;
+ wrmsrl(MSR_IA32_RTIT_OUTPUT_BASE, reg);
+ }
+
+ reg = 0x7f | (mask << 7) | ((u64)buf->output_off << 32);
+ if (pt->output_mask != reg) {
+ pt->output_mask = reg;
+ wrmsrl(MSR_IA32_RTIT_OUTPUT_MASK, reg);
+ }
+}
+
+/**
+ * topa_alloc() - allocate page-sized ToPA table
+ * @cpu: CPU on which to allocate.
+ * @gfp: Allocation flags.
+ *
+ * Return: On success, return the pointer to ToPA table page.
+ */
+static struct topa *topa_alloc(int cpu, gfp_t gfp)
+{
+ int node = cpu_to_node(cpu);
+ struct topa_page *tp;
+ struct page *p;
+
+ p = alloc_pages_node(node, gfp | __GFP_ZERO, 0);
+ if (!p)
+ return NULL;
+
+ tp = page_address(p);
+ tp->topa.last = 0;
+
+ /*
+ * In case of singe-entry ToPA, always put the self-referencing END
+ * link as the 2nd entry in the table
+ */
+ if (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries)) {
+ TOPA_ENTRY(&tp->topa, 1)->base = page_to_phys(p) >> TOPA_SHIFT;
+ TOPA_ENTRY(&tp->topa, 1)->end = 1;
+ }
+
+ return &tp->topa;
+}
+
+/**
+ * topa_free() - free a page-sized ToPA table
+ * @topa: Table to deallocate.
+ */
+static void topa_free(struct topa *topa)
+{
+ free_page((unsigned long)topa);
+}
+
+/**
+ * topa_insert_table() - insert a ToPA table into a buffer
+ * @buf: PT buffer that's being extended.
+ * @topa: New topa table to be inserted.
+ *
+ * If it's the first table in this buffer, set up buffer's pointers
+ * accordingly; otherwise, add a END=1 link entry to @topa to the current
+ * "last" table and adjust the last table pointer to @topa.
+ */
+static void topa_insert_table(struct pt_buffer *buf, struct topa *topa)
+{
+ struct topa *last = buf->last;
+
+ list_add_tail(&topa->list, &buf->tables);
+
+ if (!buf->first) {
+ buf->first = buf->last = buf->cur = topa;
+ return;
+ }
+
+ topa->offset = last->offset + last->size;
+ buf->last = topa;
+
+ if (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries))
+ return;
+
+ BUG_ON(last->last != TENTS_PER_PAGE - 1);
+
+ TOPA_ENTRY(last, -1)->base = topa_pfn(topa);
+ TOPA_ENTRY(last, -1)->end = 1;
+}
+
+/**
+ * topa_table_full() - check if a ToPA table is filled up
+ * @topa: ToPA table.
+ */
+static bool topa_table_full(struct topa *topa)
+{
+ /* single-entry ToPA is a special case */
+ if (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries))
+ return !!topa->last;
+
+ return topa->last == TENTS_PER_PAGE - 1;
+}
+
+/**
+ * topa_insert_pages() - create a list of ToPA tables
+ * @buf: PT buffer being initialized.
+ * @gfp: Allocation flags.
+ *
+ * This initializes a list of ToPA tables with entries from
+ * the data_pages provided by rb_alloc_aux().
+ *
+ * Return: 0 on success or error code.
+ */
+static int topa_insert_pages(struct pt_buffer *buf, int cpu, gfp_t gfp)
+{
+ struct topa *topa = buf->last;
+ int order = 0;
+ struct page *p;
+
+ p = virt_to_page(buf->data_pages[buf->nr_pages]);
+ if (PagePrivate(p))
+ order = page_private(p);
+
+ if (topa_table_full(topa)) {
+ topa = topa_alloc(cpu, gfp);
+ if (!topa)
+ return -ENOMEM;
+
+ topa_insert_table(buf, topa);
+ }
+
+ if (topa->z_count == topa->last - 1) {
+ if (order == TOPA_ENTRY(topa, topa->last - 1)->size)
+ topa->z_count++;
+ }
+
+ TOPA_ENTRY(topa, -1)->base = page_to_phys(p) >> TOPA_SHIFT;
+ TOPA_ENTRY(topa, -1)->size = order;
+ if (!buf->snapshot &&
+ !intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries)) {
+ TOPA_ENTRY(topa, -1)->intr = 1;
+ TOPA_ENTRY(topa, -1)->stop = 1;
+ }
+
+ topa->last++;
+ topa->size += sizes(order);
+
+ buf->nr_pages += 1ul << order;
+
+ return 0;
+}
+
+/**
+ * pt_topa_dump() - print ToPA tables and their entries
+ * @buf: PT buffer.
+ */
+static void pt_topa_dump(struct pt_buffer *buf)
+{
+ struct topa *topa;
+
+ list_for_each_entry(topa, &buf->tables, list) {
+ struct topa_page *tp = topa_to_page(topa);
+ int i;
+
+ pr_debug("# table @%p, off %llx size %zx\n", tp->table,
+ topa->offset, topa->size);
+ for (i = 0; i < TENTS_PER_PAGE; i++) {
+ pr_debug("# entry @%p (%lx sz %u %c%c%c) raw=%16llx\n",
+ &tp->table[i],
+ (unsigned long)tp->table[i].base << TOPA_SHIFT,
+ sizes(tp->table[i].size),
+ tp->table[i].end ? 'E' : ' ',
+ tp->table[i].intr ? 'I' : ' ',
+ tp->table[i].stop ? 'S' : ' ',
+ *(u64 *)&tp->table[i]);
+ if ((intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries) &&
+ tp->table[i].stop) ||
+ tp->table[i].end)
+ break;
+ if (!i && topa->z_count)
+ i += topa->z_count;
+ }
+ }
+}
+
+/**
+ * pt_buffer_advance() - advance to the next output region
+ * @buf: PT buffer.
+ *
+ * Advance the current pointers in the buffer to the next ToPA entry.
+ */
+static void pt_buffer_advance(struct pt_buffer *buf)
+{
+ buf->output_off = 0;
+ buf->cur_idx++;
+
+ if (buf->cur_idx == buf->cur->last) {
+ if (buf->cur == buf->last)
+ buf->cur = buf->first;
+ else
+ buf->cur = list_entry(buf->cur->list.next, struct topa,
+ list);
+ buf->cur_idx = 0;
+ }
+}
+
+/**
+ * pt_update_head() - calculate current offsets and sizes
+ * @pt: Per-cpu pt context.
+ *
+ * Update buffer's current write pointer position and data size.
+ */
+static void pt_update_head(struct pt *pt)
+{
+ struct pt_buffer *buf = perf_get_aux(&pt->handle);
+ u64 topa_idx, base, old;
+
+ if (buf->single) {
+ local_set(&buf->data_size, buf->output_off);
+ return;
+ }
+
+ /* offset of the first region in this table from the beginning of buf */
+ base = buf->cur->offset + buf->output_off;
+
+ /* offset of the current output region within this table */
+ for (topa_idx = 0; topa_idx < buf->cur_idx; topa_idx++)
+ base += TOPA_ENTRY_SIZE(buf->cur, topa_idx);
+
+ if (buf->snapshot) {
+ local_set(&buf->data_size, base);
+ } else {
+ old = (local64_xchg(&buf->head, base) &
+ ((buf->nr_pages << PAGE_SHIFT) - 1));
+ if (base < old)
+ base += buf->nr_pages << PAGE_SHIFT;
+
+ local_add(base - old, &buf->data_size);
+ }
+}
+
+/**
+ * pt_buffer_region() - obtain current output region's address
+ * @buf: PT buffer.
+ */
+static void *pt_buffer_region(struct pt_buffer *buf)
+{
+ return phys_to_virt(TOPA_ENTRY(buf->cur, buf->cur_idx)->base << TOPA_SHIFT);
+}
+
+/**
+ * pt_buffer_region_size() - obtain current output region's size
+ * @buf: PT buffer.
+ */
+static size_t pt_buffer_region_size(struct pt_buffer *buf)
+{
+ return TOPA_ENTRY_SIZE(buf->cur, buf->cur_idx);
+}
+
+/**
+ * pt_handle_status() - take care of possible status conditions
+ * @pt: Per-cpu pt context.
+ */
+static void pt_handle_status(struct pt *pt)
+{
+ struct pt_buffer *buf = perf_get_aux(&pt->handle);
+ int advance = 0;
+ u64 status;
+
+ rdmsrl(MSR_IA32_RTIT_STATUS, status);
+
+ if (status & RTIT_STATUS_ERROR) {
+ pr_err_ratelimited("ToPA ERROR encountered, trying to recover\n");
+ pt_topa_dump(buf);
+ status &= ~RTIT_STATUS_ERROR;
+ }
+
+ if (status & RTIT_STATUS_STOPPED) {
+ status &= ~RTIT_STATUS_STOPPED;
+
+ /*
+ * On systems that only do single-entry ToPA, hitting STOP
+ * means we are already losing data; need to let the decoder
+ * know.
+ */
+ if (!buf->single &&
+ (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries) ||
+ buf->output_off == pt_buffer_region_size(buf))) {
+ perf_aux_output_flag(&pt->handle,
+ PERF_AUX_FLAG_TRUNCATED);
+ advance++;
+ }
+ }
+
+ /*
+ * Also on single-entry ToPA implementations, interrupt will come
+ * before the output reaches its output region's boundary.
+ */
+ if (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries) &&
+ !buf->snapshot &&
+ pt_buffer_region_size(buf) - buf->output_off <= TOPA_PMI_MARGIN) {
+ void *head = pt_buffer_region(buf);
+
+ /* everything within this margin needs to be zeroed out */
+ memset(head + buf->output_off, 0,
+ pt_buffer_region_size(buf) -
+ buf->output_off);
+ advance++;
+ }
+
+ if (advance)
+ pt_buffer_advance(buf);
+
+ wrmsrl(MSR_IA32_RTIT_STATUS, status);
+}
+
+/**
+ * pt_read_offset() - translate registers into buffer pointers
+ * @buf: PT buffer.
+ *
+ * Set buffer's output pointers from MSR values.
+ */
+static void pt_read_offset(struct pt_buffer *buf)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ struct topa_page *tp;
+
+ if (!buf->single) {
+ rdmsrl(MSR_IA32_RTIT_OUTPUT_BASE, pt->output_base);
+ tp = phys_to_virt(pt->output_base);
+ buf->cur = &tp->topa;
+ }
+
+ rdmsrl(MSR_IA32_RTIT_OUTPUT_MASK, pt->output_mask);
+ /* offset within current output region */
+ buf->output_off = pt->output_mask >> 32;
+ /* index of current output region within this table */
+ if (!buf->single)
+ buf->cur_idx = (pt->output_mask & 0xffffff80) >> 7;
+}
+
+static struct topa_entry *
+pt_topa_entry_for_page(struct pt_buffer *buf, unsigned int pg)
+{
+ struct topa_page *tp;
+ struct topa *topa;
+ unsigned int idx, cur_pg = 0, z_pg = 0, start_idx = 0;
+
+ /*
+ * Indicates a bug in the caller.
+ */
+ if (WARN_ON_ONCE(pg >= buf->nr_pages))
+ return NULL;
+
+ /*
+ * First, find the ToPA table where @pg fits. With high
+ * order allocations, there shouldn't be many of these.
+ */
+ list_for_each_entry(topa, &buf->tables, list) {
+ if (topa->offset + topa->size > pg << PAGE_SHIFT)
+ goto found;
+ }
+
+ /*
+ * Hitting this means we have a problem in the ToPA
+ * allocation code.
+ */
+ WARN_ON_ONCE(1);
+
+ return NULL;
+
+found:
+ /*
+ * Indicates a problem in the ToPA allocation code.
+ */
+ if (WARN_ON_ONCE(topa->last == -1))
+ return NULL;
+
+ tp = topa_to_page(topa);
+ cur_pg = PFN_DOWN(topa->offset);
+ if (topa->z_count) {
+ z_pg = TOPA_ENTRY_PAGES(topa, 0) * (topa->z_count + 1);
+ start_idx = topa->z_count + 1;
+ }
+
+ /*
+ * Multiple entries at the beginning of the table have the same size,
+ * ideally all of them; if @pg falls there, the search is done.
+ */
+ if (pg >= cur_pg && pg < cur_pg + z_pg) {
+ idx = (pg - cur_pg) / TOPA_ENTRY_PAGES(topa, 0);
+ return &tp->table[idx];
+ }
+
+ /*
+ * Otherwise, slow path: iterate through the remaining entries.
+ */
+ for (idx = start_idx, cur_pg += z_pg; idx < topa->last; idx++) {
+ if (cur_pg + TOPA_ENTRY_PAGES(topa, idx) > pg)
+ return &tp->table[idx];
+
+ cur_pg += TOPA_ENTRY_PAGES(topa, idx);
+ }
+
+ /*
+ * Means we couldn't find a ToPA entry in the table that does match.
+ */
+ WARN_ON_ONCE(1);
+
+ return NULL;
+}
+
+static struct topa_entry *
+pt_topa_prev_entry(struct pt_buffer *buf, struct topa_entry *te)
+{
+ unsigned long table = (unsigned long)te & ~(PAGE_SIZE - 1);
+ struct topa_page *tp;
+ struct topa *topa;
+
+ tp = (struct topa_page *)table;
+ if (tp->table != te)
+ return --te;
+
+ topa = &tp->topa;
+ if (topa == buf->first)
+ topa = buf->last;
+ else
+ topa = list_prev_entry(topa, list);
+
+ tp = topa_to_page(topa);
+
+ return &tp->table[topa->last - 1];
+}
+
+/**
+ * pt_buffer_reset_markers() - place interrupt and stop bits in the buffer
+ * @buf: PT buffer.
+ * @handle: Current output handle.
+ *
+ * Place INT and STOP marks to prevent overwriting old data that the consumer
+ * hasn't yet collected and waking up the consumer after a certain fraction of
+ * the buffer has filled up. Only needed and sensible for non-snapshot counters.
+ *
+ * This obviously relies on buf::head to figure out buffer markers, so it has
+ * to be called after pt_buffer_reset_offsets() and before the hardware tracing
+ * is enabled.
+ */
+static int pt_buffer_reset_markers(struct pt_buffer *buf,
+ struct perf_output_handle *handle)
+
+{
+ unsigned long head = local64_read(&buf->head);
+ unsigned long idx, npages, wakeup;
+
+ if (buf->single)
+ return 0;
+
+ /* can't stop in the middle of an output region */
+ if (buf->output_off + handle->size + 1 < pt_buffer_region_size(buf)) {
+ perf_aux_output_flag(handle, PERF_AUX_FLAG_TRUNCATED);
+ return -EINVAL;
+ }
+
+
+ /* single entry ToPA is handled by marking all regions STOP=1 INT=1 */
+ if (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries))
+ return 0;
+
+ /* clear STOP and INT from current entry */
+ if (buf->stop_te) {
+ buf->stop_te->stop = 0;
+ buf->stop_te->intr = 0;
+ }
+
+ if (buf->intr_te)
+ buf->intr_te->intr = 0;
+
+ /* how many pages till the STOP marker */
+ npages = handle->size >> PAGE_SHIFT;
+
+ /* if it's on a page boundary, fill up one more page */
+ if (!offset_in_page(head + handle->size + 1))
+ npages++;
+
+ idx = (head >> PAGE_SHIFT) + npages;
+ idx &= buf->nr_pages - 1;
+
+ if (idx != buf->stop_pos) {
+ buf->stop_pos = idx;
+ buf->stop_te = pt_topa_entry_for_page(buf, idx);
+ buf->stop_te = pt_topa_prev_entry(buf, buf->stop_te);
+ }
+
+ wakeup = handle->wakeup >> PAGE_SHIFT;
+
+ /* in the worst case, wake up the consumer one page before hard stop */
+ idx = (head >> PAGE_SHIFT) + npages - 1;
+ if (idx > wakeup)
+ idx = wakeup;
+
+ idx &= buf->nr_pages - 1;
+ if (idx != buf->intr_pos) {
+ buf->intr_pos = idx;
+ buf->intr_te = pt_topa_entry_for_page(buf, idx);
+ buf->intr_te = pt_topa_prev_entry(buf, buf->intr_te);
+ }
+
+ buf->stop_te->stop = 1;
+ buf->stop_te->intr = 1;
+ buf->intr_te->intr = 1;
+
+ return 0;
+}
+
+/**
+ * pt_buffer_reset_offsets() - adjust buffer's write pointers from aux_head
+ * @buf: PT buffer.
+ * @head: Write pointer (aux_head) from AUX buffer.
+ *
+ * Find the ToPA table and entry corresponding to given @head and set buffer's
+ * "current" pointers accordingly. This is done after we have obtained the
+ * current aux_head position from a successful call to perf_aux_output_begin()
+ * to make sure the hardware is writing to the right place.
+ *
+ * This function modifies buf::{cur,cur_idx,output_off} that will be programmed
+ * into PT msrs when the tracing is enabled and buf::head and buf::data_size,
+ * which are used to determine INT and STOP markers' locations by a subsequent
+ * call to pt_buffer_reset_markers().
+ */
+static void pt_buffer_reset_offsets(struct pt_buffer *buf, unsigned long head)
+{
+ struct topa_page *cur_tp;
+ struct topa_entry *te;
+ int pg;
+
+ if (buf->snapshot)
+ head &= (buf->nr_pages << PAGE_SHIFT) - 1;
+
+ if (!buf->single) {
+ pg = (head >> PAGE_SHIFT) & (buf->nr_pages - 1);
+ te = pt_topa_entry_for_page(buf, pg);
+
+ cur_tp = topa_entry_to_page(te);
+ buf->cur = &cur_tp->topa;
+ buf->cur_idx = te - TOPA_ENTRY(buf->cur, 0);
+ buf->output_off = head & (pt_buffer_region_size(buf) - 1);
+ } else {
+ buf->output_off = head;
+ }
+
+ local64_set(&buf->head, head);
+ local_set(&buf->data_size, 0);
+}
+
+/**
+ * pt_buffer_fini_topa() - deallocate ToPA structure of a buffer
+ * @buf: PT buffer.
+ */
+static void pt_buffer_fini_topa(struct pt_buffer *buf)
+{
+ struct topa *topa, *iter;
+
+ if (buf->single)
+ return;
+
+ list_for_each_entry_safe(topa, iter, &buf->tables, list) {
+ /*
+ * right now, this is in free_aux() path only, so
+ * no need to unlink this table from the list
+ */
+ topa_free(topa);
+ }
+}
+
+/**
+ * pt_buffer_init_topa() - initialize ToPA table for pt buffer
+ * @buf: PT buffer.
+ * @size: Total size of all regions within this ToPA.
+ * @gfp: Allocation flags.
+ */
+static int pt_buffer_init_topa(struct pt_buffer *buf, int cpu,
+ unsigned long nr_pages, gfp_t gfp)
+{
+ struct topa *topa;
+ int err;
+
+ topa = topa_alloc(cpu, gfp);
+ if (!topa)
+ return -ENOMEM;
+
+ topa_insert_table(buf, topa);
+
+ while (buf->nr_pages < nr_pages) {
+ err = topa_insert_pages(buf, cpu, gfp);
+ if (err) {
+ pt_buffer_fini_topa(buf);
+ return -ENOMEM;
+ }
+ }
+
+ /* link last table to the first one, unless we're double buffering */
+ if (intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries)) {
+ TOPA_ENTRY(buf->last, -1)->base = topa_pfn(buf->first);
+ TOPA_ENTRY(buf->last, -1)->end = 1;
+ }
+
+ pt_topa_dump(buf);
+ return 0;
+}
+
+static int pt_buffer_try_single(struct pt_buffer *buf, int nr_pages)
+{
+ struct page *p = virt_to_page(buf->data_pages[0]);
+ int ret = -ENOTSUPP, order = 0;
+
+ /*
+ * We can use single range output mode
+ * + in snapshot mode, where we don't need interrupts;
+ * + if the hardware supports it;
+ * + if the entire buffer is one contiguous allocation.
+ */
+ if (!buf->snapshot)
+ goto out;
+
+ if (!intel_pt_validate_hw_cap(PT_CAP_single_range_output))
+ goto out;
+
+ if (PagePrivate(p))
+ order = page_private(p);
+
+ if (1 << order != nr_pages)
+ goto out;
+
+ /*
+ * Some processors cannot always support single range for more than
+ * 4KB - refer errata TGL052, ADL037 and RPL017. Future processors might
+ * also be affected, so for now rather than trying to keep track of
+ * which ones, just disable it for all.
+ */
+ if (nr_pages > 1)
+ goto out;
+
+ buf->single = true;
+ buf->nr_pages = nr_pages;
+ ret = 0;
+out:
+ return ret;
+}
+
+/**
+ * pt_buffer_setup_aux() - set up topa tables for a PT buffer
+ * @cpu: Cpu on which to allocate, -1 means current.
+ * @pages: Array of pointers to buffer pages passed from perf core.
+ * @nr_pages: Number of pages in the buffer.
+ * @snapshot: If this is a snapshot/overwrite counter.
+ *
+ * This is a pmu::setup_aux callback that sets up ToPA tables and all the
+ * bookkeeping for an AUX buffer.
+ *
+ * Return: Our private PT buffer structure.
+ */
+static void *
+pt_buffer_setup_aux(struct perf_event *event, void **pages,
+ int nr_pages, bool snapshot)
+{
+ struct pt_buffer *buf;
+ int node, ret, cpu = event->cpu;
+
+ if (!nr_pages)
+ return NULL;
+
+ /*
+ * Only support AUX sampling in snapshot mode, where we don't
+ * generate NMIs.
+ */
+ if (event->attr.aux_sample_size && !snapshot)
+ return NULL;
+
+ if (cpu == -1)
+ cpu = raw_smp_processor_id();
+ node = cpu_to_node(cpu);
+
+ buf = kzalloc_node(sizeof(struct pt_buffer), GFP_KERNEL, node);
+ if (!buf)
+ return NULL;
+
+ buf->snapshot = snapshot;
+ buf->data_pages = pages;
+ buf->stop_pos = -1;
+ buf->intr_pos = -1;
+
+ INIT_LIST_HEAD(&buf->tables);
+
+ ret = pt_buffer_try_single(buf, nr_pages);
+ if (!ret)
+ return buf;
+
+ ret = pt_buffer_init_topa(buf, cpu, nr_pages, GFP_KERNEL);
+ if (ret) {
+ kfree(buf);
+ return NULL;
+ }
+
+ return buf;
+}
+
+/**
+ * pt_buffer_free_aux() - perf AUX deallocation path callback
+ * @data: PT buffer.
+ */
+static void pt_buffer_free_aux(void *data)
+{
+ struct pt_buffer *buf = data;
+
+ pt_buffer_fini_topa(buf);
+ kfree(buf);
+}
+
+static int pt_addr_filters_init(struct perf_event *event)
+{
+ struct pt_filters *filters;
+ int node = event->cpu == -1 ? -1 : cpu_to_node(event->cpu);
+
+ if (!intel_pt_validate_hw_cap(PT_CAP_num_address_ranges))
+ return 0;
+
+ filters = kzalloc_node(sizeof(struct pt_filters), GFP_KERNEL, node);
+ if (!filters)
+ return -ENOMEM;
+
+ if (event->parent)
+ memcpy(filters, event->parent->hw.addr_filters,
+ sizeof(*filters));
+
+ event->hw.addr_filters = filters;
+
+ return 0;
+}
+
+static void pt_addr_filters_fini(struct perf_event *event)
+{
+ kfree(event->hw.addr_filters);
+ event->hw.addr_filters = NULL;
+}
+
+#ifdef CONFIG_X86_64
+/* Clamp to a canonical address greater-than-or-equal-to the address given */
+static u64 clamp_to_ge_canonical_addr(u64 vaddr, u8 vaddr_bits)
+{
+ return __is_canonical_address(vaddr, vaddr_bits) ?
+ vaddr :
+ -BIT_ULL(vaddr_bits - 1);
+}
+
+/* Clamp to a canonical address less-than-or-equal-to the address given */
+static u64 clamp_to_le_canonical_addr(u64 vaddr, u8 vaddr_bits)
+{
+ return __is_canonical_address(vaddr, vaddr_bits) ?
+ vaddr :
+ BIT_ULL(vaddr_bits - 1) - 1;
+}
+#else
+#define clamp_to_ge_canonical_addr(x, y) (x)
+#define clamp_to_le_canonical_addr(x, y) (x)
+#endif
+
+static int pt_event_addr_filters_validate(struct list_head *filters)
+{
+ struct perf_addr_filter *filter;
+ int range = 0;
+
+ list_for_each_entry(filter, filters, entry) {
+ /*
+ * PT doesn't support single address triggers and
+ * 'start' filters.
+ */
+ if (!filter->size ||
+ filter->action == PERF_ADDR_FILTER_ACTION_START)
+ return -EOPNOTSUPP;
+
+ if (++range > intel_pt_validate_hw_cap(PT_CAP_num_address_ranges))
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static void pt_event_addr_filters_sync(struct perf_event *event)
+{
+ struct perf_addr_filters_head *head = perf_event_addr_filters(event);
+ unsigned long msr_a, msr_b;
+ struct perf_addr_filter_range *fr = event->addr_filter_ranges;
+ struct pt_filters *filters = event->hw.addr_filters;
+ struct perf_addr_filter *filter;
+ int range = 0;
+
+ if (!filters)
+ return;
+
+ list_for_each_entry(filter, &head->list, entry) {
+ if (filter->path.dentry && !fr[range].start) {
+ msr_a = msr_b = 0;
+ } else {
+ unsigned long n = fr[range].size - 1;
+ unsigned long a = fr[range].start;
+ unsigned long b;
+
+ if (a > ULONG_MAX - n)
+ b = ULONG_MAX;
+ else
+ b = a + n;
+ /*
+ * Apply the offset. 64-bit addresses written to the
+ * MSRs must be canonical, but the range can encompass
+ * non-canonical addresses. Since software cannot
+ * execute at non-canonical addresses, adjusting to
+ * canonical addresses does not affect the result of the
+ * address filter.
+ */
+ msr_a = clamp_to_ge_canonical_addr(a, boot_cpu_data.x86_virt_bits);
+ msr_b = clamp_to_le_canonical_addr(b, boot_cpu_data.x86_virt_bits);
+ if (msr_b < msr_a)
+ msr_a = msr_b = 0;
+ }
+
+ filters->filter[range].msr_a = msr_a;
+ filters->filter[range].msr_b = msr_b;
+ if (filter->action == PERF_ADDR_FILTER_ACTION_FILTER)
+ filters->filter[range].config = 1;
+ else
+ filters->filter[range].config = 2;
+ range++;
+ }
+
+ filters->nr_filters = range;
+}
+
+/**
+ * intel_pt_interrupt() - PT PMI handler
+ */
+void intel_pt_interrupt(void)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ struct pt_buffer *buf;
+ struct perf_event *event = pt->handle.event;
+
+ /*
+ * There may be a dangling PT bit in the interrupt status register
+ * after PT has been disabled by pt_event_stop(). Make sure we don't
+ * do anything (particularly, re-enable) for this event here.
+ */
+ if (!READ_ONCE(pt->handle_nmi))
+ return;
+
+ if (!event)
+ return;
+
+ pt_config_stop(event);
+
+ buf = perf_get_aux(&pt->handle);
+ if (!buf)
+ return;
+
+ pt_read_offset(buf);
+
+ pt_handle_status(pt);
+
+ pt_update_head(pt);
+
+ perf_aux_output_end(&pt->handle, local_xchg(&buf->data_size, 0));
+
+ if (!event->hw.state) {
+ int ret;
+
+ buf = perf_aux_output_begin(&pt->handle, event);
+ if (!buf) {
+ event->hw.state = PERF_HES_STOPPED;
+ return;
+ }
+
+ pt_buffer_reset_offsets(buf, pt->handle.head);
+ /* snapshot counters don't use PMI, so it's safe */
+ ret = pt_buffer_reset_markers(buf, &pt->handle);
+ if (ret) {
+ perf_aux_output_end(&pt->handle, 0);
+ return;
+ }
+
+ pt_config_buffer(buf);
+ pt_config_start(event);
+ }
+}
+
+void intel_pt_handle_vmx(int on)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ struct perf_event *event;
+ unsigned long flags;
+
+ /* PT plays nice with VMX, do nothing */
+ if (pt_pmu.vmx)
+ return;
+
+ /*
+ * VMXON will clear RTIT_CTL.TraceEn; we need to make
+ * sure to not try to set it while VMX is on. Disable
+ * interrupts to avoid racing with pmu callbacks;
+ * concurrent PMI should be handled fine.
+ */
+ local_irq_save(flags);
+ WRITE_ONCE(pt->vmx_on, on);
+
+ /*
+ * If an AUX transaction is in progress, it will contain
+ * gap(s), so flag it PARTIAL to inform the user.
+ */
+ event = pt->handle.event;
+ if (event)
+ perf_aux_output_flag(&pt->handle,
+ PERF_AUX_FLAG_PARTIAL);
+
+ /* Turn PTs back on */
+ if (!on && event)
+ wrmsrl(MSR_IA32_RTIT_CTL, event->hw.config);
+
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(intel_pt_handle_vmx);
+
+/*
+ * PMU callbacks
+ */
+
+static void pt_event_start(struct perf_event *event, int mode)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ struct pt_buffer *buf;
+
+ buf = perf_aux_output_begin(&pt->handle, event);
+ if (!buf)
+ goto fail_stop;
+
+ pt_buffer_reset_offsets(buf, pt->handle.head);
+ if (!buf->snapshot) {
+ if (pt_buffer_reset_markers(buf, &pt->handle))
+ goto fail_end_stop;
+ }
+
+ WRITE_ONCE(pt->handle_nmi, 1);
+ hwc->state = 0;
+
+ pt_config_buffer(buf);
+ pt_config(event);
+
+ return;
+
+fail_end_stop:
+ perf_aux_output_end(&pt->handle, 0);
+fail_stop:
+ hwc->state = PERF_HES_STOPPED;
+}
+
+static void pt_event_stop(struct perf_event *event, int mode)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+
+ /*
+ * Protect against the PMI racing with disabling wrmsr,
+ * see comment in intel_pt_interrupt().
+ */
+ WRITE_ONCE(pt->handle_nmi, 0);
+
+ pt_config_stop(event);
+
+ if (event->hw.state == PERF_HES_STOPPED)
+ return;
+
+ event->hw.state = PERF_HES_STOPPED;
+
+ if (mode & PERF_EF_UPDATE) {
+ struct pt_buffer *buf = perf_get_aux(&pt->handle);
+
+ if (!buf)
+ return;
+
+ if (WARN_ON_ONCE(pt->handle.event != event))
+ return;
+
+ pt_read_offset(buf);
+
+ pt_handle_status(pt);
+
+ pt_update_head(pt);
+
+ if (buf->snapshot)
+ pt->handle.head =
+ local_xchg(&buf->data_size,
+ buf->nr_pages << PAGE_SHIFT);
+ perf_aux_output_end(&pt->handle, local_xchg(&buf->data_size, 0));
+ }
+}
+
+static long pt_event_snapshot_aux(struct perf_event *event,
+ struct perf_output_handle *handle,
+ unsigned long size)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ struct pt_buffer *buf = perf_get_aux(&pt->handle);
+ unsigned long from = 0, to;
+ long ret;
+
+ if (WARN_ON_ONCE(!buf))
+ return 0;
+
+ /*
+ * Sampling is only allowed on snapshot events;
+ * see pt_buffer_setup_aux().
+ */
+ if (WARN_ON_ONCE(!buf->snapshot))
+ return 0;
+
+ /*
+ * Here, handle_nmi tells us if the tracing is on
+ */
+ if (READ_ONCE(pt->handle_nmi))
+ pt_config_stop(event);
+
+ pt_read_offset(buf);
+ pt_update_head(pt);
+
+ to = local_read(&buf->data_size);
+ if (to < size)
+ from = buf->nr_pages << PAGE_SHIFT;
+ from += to - size;
+
+ ret = perf_output_copy_aux(&pt->handle, handle, from, to);
+
+ /*
+ * If the tracing was on when we turned up, restart it.
+ * Compiler barrier not needed as we couldn't have been
+ * preempted by anything that touches pt->handle_nmi.
+ */
+ if (pt->handle_nmi)
+ pt_config_start(event);
+
+ return ret;
+}
+
+static void pt_event_del(struct perf_event *event, int mode)
+{
+ pt_event_stop(event, PERF_EF_UPDATE);
+}
+
+static int pt_event_add(struct perf_event *event, int mode)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+ struct hw_perf_event *hwc = &event->hw;
+ int ret = -EBUSY;
+
+ if (pt->handle.event)
+ goto fail;
+
+ if (mode & PERF_EF_START) {
+ pt_event_start(event, 0);
+ ret = -EINVAL;
+ if (hwc->state == PERF_HES_STOPPED)
+ goto fail;
+ } else {
+ hwc->state = PERF_HES_STOPPED;
+ }
+
+ ret = 0;
+fail:
+
+ return ret;
+}
+
+static void pt_event_read(struct perf_event *event)
+{
+}
+
+static void pt_event_destroy(struct perf_event *event)
+{
+ pt_addr_filters_fini(event);
+ x86_del_exclusive(x86_lbr_exclusive_pt);
+}
+
+static int pt_event_init(struct perf_event *event)
+{
+ if (event->attr.type != pt_pmu.pmu.type)
+ return -ENOENT;
+
+ if (!pt_event_valid(event))
+ return -EINVAL;
+
+ if (x86_add_exclusive(x86_lbr_exclusive_pt))
+ return -EBUSY;
+
+ if (pt_addr_filters_init(event)) {
+ x86_del_exclusive(x86_lbr_exclusive_pt);
+ return -ENOMEM;
+ }
+
+ event->destroy = pt_event_destroy;
+
+ return 0;
+}
+
+void cpu_emergency_stop_pt(void)
+{
+ struct pt *pt = this_cpu_ptr(&pt_ctx);
+
+ if (pt->handle.event)
+ pt_event_stop(pt->handle.event, PERF_EF_UPDATE);
+}
+
+int is_intel_pt_event(struct perf_event *event)
+{
+ return event->pmu == &pt_pmu.pmu;
+}
+
+static __init int pt_init(void)
+{
+ int ret, cpu, prior_warn = 0;
+
+ BUILD_BUG_ON(sizeof(struct topa) > PAGE_SIZE);
+
+ if (!boot_cpu_has(X86_FEATURE_INTEL_PT))
+ return -ENODEV;
+
+ cpus_read_lock();
+ for_each_online_cpu(cpu) {
+ u64 ctl;
+
+ ret = rdmsrl_safe_on_cpu(cpu, MSR_IA32_RTIT_CTL, &ctl);
+ if (!ret && (ctl & RTIT_CTL_TRACEEN))
+ prior_warn++;
+ }
+ cpus_read_unlock();
+
+ if (prior_warn) {
+ x86_add_exclusive(x86_lbr_exclusive_pt);
+ pr_warn("PT is enabled at boot time, doing nothing\n");
+
+ return -EBUSY;
+ }
+
+ ret = pt_pmu_hw_init();
+ if (ret)
+ return ret;
+
+ if (!intel_pt_validate_hw_cap(PT_CAP_topa_output)) {
+ pr_warn("ToPA output is not supported on this CPU\n");
+ return -ENODEV;
+ }
+
+ if (!intel_pt_validate_hw_cap(PT_CAP_topa_multiple_entries))
+ pt_pmu.pmu.capabilities = PERF_PMU_CAP_AUX_NO_SG;
+
+ pt_pmu.pmu.capabilities |= PERF_PMU_CAP_EXCLUSIVE | PERF_PMU_CAP_ITRACE;
+ pt_pmu.pmu.attr_groups = pt_attr_groups;
+ pt_pmu.pmu.task_ctx_nr = perf_sw_context;
+ pt_pmu.pmu.event_init = pt_event_init;
+ pt_pmu.pmu.add = pt_event_add;
+ pt_pmu.pmu.del = pt_event_del;
+ pt_pmu.pmu.start = pt_event_start;
+ pt_pmu.pmu.stop = pt_event_stop;
+ pt_pmu.pmu.snapshot_aux = pt_event_snapshot_aux;
+ pt_pmu.pmu.read = pt_event_read;
+ pt_pmu.pmu.setup_aux = pt_buffer_setup_aux;
+ pt_pmu.pmu.free_aux = pt_buffer_free_aux;
+ pt_pmu.pmu.addr_filters_sync = pt_event_addr_filters_sync;
+ pt_pmu.pmu.addr_filters_validate = pt_event_addr_filters_validate;
+ pt_pmu.pmu.nr_addr_filters =
+ intel_pt_validate_hw_cap(PT_CAP_num_address_ranges);
+
+ ret = perf_pmu_register(&pt_pmu.pmu, "intel_pt", -1);
+
+ return ret;
+}
+arch_initcall(pt_init);
diff --git a/arch/x86/events/intel/pt.h b/arch/x86/events/intel/pt.h
new file mode 100644
index 000000000000..96906a62aacd
--- /dev/null
+++ b/arch/x86/events/intel/pt.h
@@ -0,0 +1,132 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel(R) Processor Trace PMU driver for perf
+ * Copyright (c) 2013-2014, Intel Corporation.
+ *
+ * Intel PT is specified in the Intel Architecture Instruction Set Extensions
+ * Programming Reference:
+ * http://software.intel.com/en-us/intel-isa-extensions
+ */
+
+#ifndef __INTEL_PT_H__
+#define __INTEL_PT_H__
+
+/*
+ * Single-entry ToPA: when this close to region boundary, switch
+ * buffers to avoid losing data.
+ */
+#define TOPA_PMI_MARGIN 512
+
+#define TOPA_SHIFT 12
+
+static inline unsigned int sizes(unsigned int tsz)
+{
+ return 1 << (tsz + TOPA_SHIFT);
+};
+
+struct topa_entry {
+ u64 end : 1;
+ u64 rsvd0 : 1;
+ u64 intr : 1;
+ u64 rsvd1 : 1;
+ u64 stop : 1;
+ u64 rsvd2 : 1;
+ u64 size : 4;
+ u64 rsvd3 : 2;
+ u64 base : 36;
+ u64 rsvd4 : 16;
+};
+
+/* TSC to Core Crystal Clock Ratio */
+#define CPUID_TSC_LEAF 0x15
+
+struct pt_pmu {
+ struct pmu pmu;
+ u32 caps[PT_CPUID_REGS_NUM * PT_CPUID_LEAVES];
+ bool vmx;
+ bool branch_en_always_on;
+ unsigned long max_nonturbo_ratio;
+ unsigned int tsc_art_num;
+ unsigned int tsc_art_den;
+};
+
+/**
+ * struct pt_buffer - buffer configuration; one buffer per task_struct or
+ * cpu, depending on perf event configuration
+ * @tables: list of ToPA tables in this buffer
+ * @first: shorthand for first topa table
+ * @last: shorthand for last topa table
+ * @cur: current topa table
+ * @nr_pages: buffer size in pages
+ * @cur_idx: current output region's index within @cur table
+ * @output_off: offset within the current output region
+ * @data_size: running total of the amount of data in this buffer
+ * @lost: if data was lost/truncated
+ * @head: logical write offset inside the buffer
+ * @snapshot: if this is for a snapshot/overwrite counter
+ * @single: use Single Range Output instead of ToPA
+ * @stop_pos: STOP topa entry index
+ * @intr_pos: INT topa entry index
+ * @stop_te: STOP topa entry pointer
+ * @intr_te: INT topa entry pointer
+ * @data_pages: array of pages from perf
+ * @topa_index: table of topa entries indexed by page offset
+ */
+struct pt_buffer {
+ struct list_head tables;
+ struct topa *first, *last, *cur;
+ unsigned int cur_idx;
+ size_t output_off;
+ unsigned long nr_pages;
+ local_t data_size;
+ local64_t head;
+ bool snapshot;
+ bool single;
+ long stop_pos, intr_pos;
+ struct topa_entry *stop_te, *intr_te;
+ void **data_pages;
+};
+
+#define PT_FILTERS_NUM 4
+
+/**
+ * struct pt_filter - IP range filter configuration
+ * @msr_a: range start, goes to RTIT_ADDRn_A
+ * @msr_b: range end, goes to RTIT_ADDRn_B
+ * @config: 4-bit field in RTIT_CTL
+ */
+struct pt_filter {
+ unsigned long msr_a;
+ unsigned long msr_b;
+ unsigned long config;
+};
+
+/**
+ * struct pt_filters - IP range filtering context
+ * @filter: filters defined for this context
+ * @nr_filters: number of defined filters in the @filter array
+ */
+struct pt_filters {
+ struct pt_filter filter[PT_FILTERS_NUM];
+ unsigned int nr_filters;
+};
+
+/**
+ * struct pt - per-cpu pt context
+ * @handle: perf output handle
+ * @filters: last configured filters
+ * @handle_nmi: do handle PT PMI on this cpu, there's an active event
+ * @vmx_on: 1 if VMX is ON on this cpu
+ * @output_base: cached RTIT_OUTPUT_BASE MSR value
+ * @output_mask: cached RTIT_OUTPUT_MASK MSR value
+ */
+struct pt {
+ struct perf_output_handle handle;
+ struct pt_filters filters;
+ int handle_nmi;
+ int vmx_on;
+ u64 output_base;
+ u64 output_mask;
+};
+
+#endif /* __INTEL_PT_H__ */
diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
new file mode 100644
index 000000000000..bc226603ef3e
--- /dev/null
+++ b/arch/x86/events/intel/uncore.c
@@ -0,0 +1,1949 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/module.h>
+
+#include <asm/cpu_device_id.h>
+#include <asm/intel-family.h>
+#include "uncore.h"
+#include "uncore_discovery.h"
+
+static bool uncore_no_discover;
+module_param(uncore_no_discover, bool, 0);
+MODULE_PARM_DESC(uncore_no_discover, "Don't enable the Intel uncore PerfMon discovery mechanism "
+ "(default: enable the discovery mechanism).");
+struct intel_uncore_type *empty_uncore[] = { NULL, };
+struct intel_uncore_type **uncore_msr_uncores = empty_uncore;
+struct intel_uncore_type **uncore_pci_uncores = empty_uncore;
+struct intel_uncore_type **uncore_mmio_uncores = empty_uncore;
+
+static bool pcidrv_registered;
+struct pci_driver *uncore_pci_driver;
+/* The PCI driver for the device which the uncore doesn't own. */
+struct pci_driver *uncore_pci_sub_driver;
+/* pci bus to socket mapping */
+DEFINE_RAW_SPINLOCK(pci2phy_map_lock);
+struct list_head pci2phy_map_head = LIST_HEAD_INIT(pci2phy_map_head);
+struct pci_extra_dev *uncore_extra_pci_dev;
+int __uncore_max_dies;
+
+/* mask of cpus that collect uncore events */
+static cpumask_t uncore_cpu_mask;
+
+/* constraint for the fixed counter */
+static struct event_constraint uncore_constraint_fixed =
+ EVENT_CONSTRAINT(~0ULL, 1 << UNCORE_PMC_IDX_FIXED, ~0ULL);
+struct event_constraint uncore_constraint_empty =
+ EVENT_CONSTRAINT(0, 0, 0);
+
+MODULE_LICENSE("GPL");
+
+int uncore_pcibus_to_dieid(struct pci_bus *bus)
+{
+ struct pci2phy_map *map;
+ int die_id = -1;
+
+ raw_spin_lock(&pci2phy_map_lock);
+ list_for_each_entry(map, &pci2phy_map_head, list) {
+ if (map->segment == pci_domain_nr(bus)) {
+ die_id = map->pbus_to_dieid[bus->number];
+ break;
+ }
+ }
+ raw_spin_unlock(&pci2phy_map_lock);
+
+ return die_id;
+}
+
+int uncore_die_to_segment(int die)
+{
+ struct pci_bus *bus = NULL;
+
+ /* Find first pci bus which attributes to specified die. */
+ while ((bus = pci_find_next_bus(bus)) &&
+ (die != uncore_pcibus_to_dieid(bus)))
+ ;
+
+ return bus ? pci_domain_nr(bus) : -EINVAL;
+}
+
+int uncore_device_to_die(struct pci_dev *dev)
+{
+ int node = pcibus_to_node(dev->bus);
+ int cpu;
+
+ for_each_cpu(cpu, cpumask_of_pcibus(dev->bus)) {
+ struct cpuinfo_x86 *c = &cpu_data(cpu);
+
+ if (c->initialized && cpu_to_node(cpu) == node)
+ return c->logical_die_id;
+ }
+
+ return -1;
+}
+
+static void uncore_free_pcibus_map(void)
+{
+ struct pci2phy_map *map, *tmp;
+
+ list_for_each_entry_safe(map, tmp, &pci2phy_map_head, list) {
+ list_del(&map->list);
+ kfree(map);
+ }
+}
+
+struct pci2phy_map *__find_pci2phy_map(int segment)
+{
+ struct pci2phy_map *map, *alloc = NULL;
+ int i;
+
+ lockdep_assert_held(&pci2phy_map_lock);
+
+lookup:
+ list_for_each_entry(map, &pci2phy_map_head, list) {
+ if (map->segment == segment)
+ goto end;
+ }
+
+ if (!alloc) {
+ raw_spin_unlock(&pci2phy_map_lock);
+ alloc = kmalloc(sizeof(struct pci2phy_map), GFP_KERNEL);
+ raw_spin_lock(&pci2phy_map_lock);
+
+ if (!alloc)
+ return NULL;
+
+ goto lookup;
+ }
+
+ map = alloc;
+ alloc = NULL;
+ map->segment = segment;
+ for (i = 0; i < 256; i++)
+ map->pbus_to_dieid[i] = -1;
+ list_add_tail(&map->list, &pci2phy_map_head);
+
+end:
+ kfree(alloc);
+ return map;
+}
+
+ssize_t uncore_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct uncore_event_desc *event =
+ container_of(attr, struct uncore_event_desc, attr);
+ return sprintf(buf, "%s", event->config);
+}
+
+struct intel_uncore_box *uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu)
+{
+ unsigned int dieid = topology_logical_die_id(cpu);
+
+ /*
+ * The unsigned check also catches the '-1' return value for non
+ * existent mappings in the topology map.
+ */
+ return dieid < uncore_max_dies() ? pmu->boxes[dieid] : NULL;
+}
+
+u64 uncore_msr_read_counter(struct intel_uncore_box *box, struct perf_event *event)
+{
+ u64 count;
+
+ rdmsrl(event->hw.event_base, count);
+
+ return count;
+}
+
+void uncore_mmio_exit_box(struct intel_uncore_box *box)
+{
+ if (box->io_addr)
+ iounmap(box->io_addr);
+}
+
+u64 uncore_mmio_read_counter(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ if (!box->io_addr)
+ return 0;
+
+ if (!uncore_mmio_is_valid_offset(box, event->hw.event_base))
+ return 0;
+
+ return readq(box->io_addr + event->hw.event_base);
+}
+
+/*
+ * generic get constraint function for shared match/mask registers.
+ */
+struct event_constraint *
+uncore_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct intel_uncore_extra_reg *er;
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
+ unsigned long flags;
+ bool ok = false;
+
+ /*
+ * reg->alloc can be set due to existing state, so for fake box we
+ * need to ignore this, otherwise we might fail to allocate proper
+ * fake state for this extra reg constraint.
+ */
+ if (reg1->idx == EXTRA_REG_NONE ||
+ (!uncore_box_is_fake(box) && reg1->alloc))
+ return NULL;
+
+ er = &box->shared_regs[reg1->idx];
+ raw_spin_lock_irqsave(&er->lock, flags);
+ if (!atomic_read(&er->ref) ||
+ (er->config1 == reg1->config && er->config2 == reg2->config)) {
+ atomic_inc(&er->ref);
+ er->config1 = reg1->config;
+ er->config2 = reg2->config;
+ ok = true;
+ }
+ raw_spin_unlock_irqrestore(&er->lock, flags);
+
+ if (ok) {
+ if (!uncore_box_is_fake(box))
+ reg1->alloc = 1;
+ return NULL;
+ }
+
+ return &uncore_constraint_empty;
+}
+
+void uncore_put_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct intel_uncore_extra_reg *er;
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+
+ /*
+ * Only put constraint if extra reg was actually allocated. Also
+ * takes care of event which do not use an extra shared reg.
+ *
+ * Also, if this is a fake box we shouldn't touch any event state
+ * (reg->alloc) and we don't care about leaving inconsistent box
+ * state either since it will be thrown out.
+ */
+ if (uncore_box_is_fake(box) || !reg1->alloc)
+ return;
+
+ er = &box->shared_regs[reg1->idx];
+ atomic_dec(&er->ref);
+ reg1->alloc = 0;
+}
+
+u64 uncore_shared_reg_config(struct intel_uncore_box *box, int idx)
+{
+ struct intel_uncore_extra_reg *er;
+ unsigned long flags;
+ u64 config;
+
+ er = &box->shared_regs[idx];
+
+ raw_spin_lock_irqsave(&er->lock, flags);
+ config = er->config;
+ raw_spin_unlock_irqrestore(&er->lock, flags);
+
+ return config;
+}
+
+static void uncore_assign_hw_event(struct intel_uncore_box *box,
+ struct perf_event *event, int idx)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ hwc->idx = idx;
+ hwc->last_tag = ++box->tags[idx];
+
+ if (uncore_pmc_fixed(hwc->idx)) {
+ hwc->event_base = uncore_fixed_ctr(box);
+ hwc->config_base = uncore_fixed_ctl(box);
+ return;
+ }
+
+ hwc->config_base = uncore_event_ctl(box, hwc->idx);
+ hwc->event_base = uncore_perf_ctr(box, hwc->idx);
+}
+
+void uncore_perf_event_update(struct intel_uncore_box *box, struct perf_event *event)
+{
+ u64 prev_count, new_count, delta;
+ int shift;
+
+ if (uncore_pmc_freerunning(event->hw.idx))
+ shift = 64 - uncore_freerunning_bits(box, event);
+ else if (uncore_pmc_fixed(event->hw.idx))
+ shift = 64 - uncore_fixed_ctr_bits(box);
+ else
+ shift = 64 - uncore_perf_ctr_bits(box);
+
+ /* the hrtimer might modify the previous event value */
+again:
+ prev_count = local64_read(&event->hw.prev_count);
+ new_count = uncore_read_counter(box, event);
+ if (local64_xchg(&event->hw.prev_count, new_count) != prev_count)
+ goto again;
+
+ delta = (new_count << shift) - (prev_count << shift);
+ delta >>= shift;
+
+ local64_add(delta, &event->count);
+}
+
+/*
+ * The overflow interrupt is unavailable for SandyBridge-EP, is broken
+ * for SandyBridge. So we use hrtimer to periodically poll the counter
+ * to avoid overflow.
+ */
+static enum hrtimer_restart uncore_pmu_hrtimer(struct hrtimer *hrtimer)
+{
+ struct intel_uncore_box *box;
+ struct perf_event *event;
+ unsigned long flags;
+ int bit;
+
+ box = container_of(hrtimer, struct intel_uncore_box, hrtimer);
+ if (!box->n_active || box->cpu != smp_processor_id())
+ return HRTIMER_NORESTART;
+ /*
+ * disable local interrupt to prevent uncore_pmu_event_start/stop
+ * to interrupt the update process
+ */
+ local_irq_save(flags);
+
+ /*
+ * handle boxes with an active event list as opposed to active
+ * counters
+ */
+ list_for_each_entry(event, &box->active_list, active_entry) {
+ uncore_perf_event_update(box, event);
+ }
+
+ for_each_set_bit(bit, box->active_mask, UNCORE_PMC_IDX_MAX)
+ uncore_perf_event_update(box, box->events[bit]);
+
+ local_irq_restore(flags);
+
+ hrtimer_forward_now(hrtimer, ns_to_ktime(box->hrtimer_duration));
+ return HRTIMER_RESTART;
+}
+
+void uncore_pmu_start_hrtimer(struct intel_uncore_box *box)
+{
+ hrtimer_start(&box->hrtimer, ns_to_ktime(box->hrtimer_duration),
+ HRTIMER_MODE_REL_PINNED);
+}
+
+void uncore_pmu_cancel_hrtimer(struct intel_uncore_box *box)
+{
+ hrtimer_cancel(&box->hrtimer);
+}
+
+static void uncore_pmu_init_hrtimer(struct intel_uncore_box *box)
+{
+ hrtimer_init(&box->hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+ box->hrtimer.function = uncore_pmu_hrtimer;
+}
+
+static struct intel_uncore_box *uncore_alloc_box(struct intel_uncore_type *type,
+ int node)
+{
+ int i, size, numshared = type->num_shared_regs ;
+ struct intel_uncore_box *box;
+
+ size = sizeof(*box) + numshared * sizeof(struct intel_uncore_extra_reg);
+
+ box = kzalloc_node(size, GFP_KERNEL, node);
+ if (!box)
+ return NULL;
+
+ for (i = 0; i < numshared; i++)
+ raw_spin_lock_init(&box->shared_regs[i].lock);
+
+ uncore_pmu_init_hrtimer(box);
+ box->cpu = -1;
+ box->dieid = -1;
+
+ /* set default hrtimer timeout */
+ box->hrtimer_duration = UNCORE_PMU_HRTIMER_INTERVAL;
+
+ INIT_LIST_HEAD(&box->active_list);
+
+ return box;
+}
+
+/*
+ * Using uncore_pmu_event_init pmu event_init callback
+ * as a detection point for uncore events.
+ */
+static int uncore_pmu_event_init(struct perf_event *event);
+
+static bool is_box_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ return &box->pmu->pmu == event->pmu;
+}
+
+static int
+uncore_collect_events(struct intel_uncore_box *box, struct perf_event *leader,
+ bool dogrp)
+{
+ struct perf_event *event;
+ int n, max_count;
+
+ max_count = box->pmu->type->num_counters;
+ if (box->pmu->type->fixed_ctl)
+ max_count++;
+
+ if (box->n_events >= max_count)
+ return -EINVAL;
+
+ n = box->n_events;
+
+ if (is_box_event(box, leader)) {
+ box->event_list[n] = leader;
+ n++;
+ }
+
+ if (!dogrp)
+ return n;
+
+ for_each_sibling_event(event, leader) {
+ if (!is_box_event(box, event) ||
+ event->state <= PERF_EVENT_STATE_OFF)
+ continue;
+
+ if (n >= max_count)
+ return -EINVAL;
+
+ box->event_list[n] = event;
+ n++;
+ }
+ return n;
+}
+
+static struct event_constraint *
+uncore_get_event_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct intel_uncore_type *type = box->pmu->type;
+ struct event_constraint *c;
+
+ if (type->ops->get_constraint) {
+ c = type->ops->get_constraint(box, event);
+ if (c)
+ return c;
+ }
+
+ if (event->attr.config == UNCORE_FIXED_EVENT)
+ return &uncore_constraint_fixed;
+
+ if (type->constraints) {
+ for_each_event_constraint(c, type->constraints) {
+ if ((event->hw.config & c->cmask) == c->code)
+ return c;
+ }
+ }
+
+ return &type->unconstrainted;
+}
+
+static void uncore_put_event_constraint(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ if (box->pmu->type->ops->put_constraint)
+ box->pmu->type->ops->put_constraint(box, event);
+}
+
+static int uncore_assign_events(struct intel_uncore_box *box, int assign[], int n)
+{
+ unsigned long used_mask[BITS_TO_LONGS(UNCORE_PMC_IDX_MAX)];
+ struct event_constraint *c;
+ int i, wmin, wmax, ret = 0;
+ struct hw_perf_event *hwc;
+
+ bitmap_zero(used_mask, UNCORE_PMC_IDX_MAX);
+
+ for (i = 0, wmin = UNCORE_PMC_IDX_MAX, wmax = 0; i < n; i++) {
+ c = uncore_get_event_constraint(box, box->event_list[i]);
+ box->event_constraint[i] = c;
+ wmin = min(wmin, c->weight);
+ wmax = max(wmax, c->weight);
+ }
+
+ /* fastpath, try to reuse previous register */
+ for (i = 0; i < n; i++) {
+ hwc = &box->event_list[i]->hw;
+ c = box->event_constraint[i];
+
+ /* never assigned */
+ if (hwc->idx == -1)
+ break;
+
+ /* constraint still honored */
+ if (!test_bit(hwc->idx, c->idxmsk))
+ break;
+
+ /* not already used */
+ if (test_bit(hwc->idx, used_mask))
+ break;
+
+ __set_bit(hwc->idx, used_mask);
+ if (assign)
+ assign[i] = hwc->idx;
+ }
+ /* slow path */
+ if (i != n)
+ ret = perf_assign_events(box->event_constraint, n,
+ wmin, wmax, n, assign);
+
+ if (!assign || ret) {
+ for (i = 0; i < n; i++)
+ uncore_put_event_constraint(box, box->event_list[i]);
+ }
+ return ret ? -EINVAL : 0;
+}
+
+void uncore_pmu_event_start(struct perf_event *event, int flags)
+{
+ struct intel_uncore_box *box = uncore_event_to_box(event);
+ int idx = event->hw.idx;
+
+ if (WARN_ON_ONCE(idx == -1 || idx >= UNCORE_PMC_IDX_MAX))
+ return;
+
+ /*
+ * Free running counter is read-only and always active.
+ * Use the current counter value as start point.
+ * There is no overflow interrupt for free running counter.
+ * Use hrtimer to periodically poll the counter to avoid overflow.
+ */
+ if (uncore_pmc_freerunning(event->hw.idx)) {
+ list_add_tail(&event->active_entry, &box->active_list);
+ local64_set(&event->hw.prev_count,
+ uncore_read_counter(box, event));
+ if (box->n_active++ == 0)
+ uncore_pmu_start_hrtimer(box);
+ return;
+ }
+
+ if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
+ return;
+
+ event->hw.state = 0;
+ box->events[idx] = event;
+ box->n_active++;
+ __set_bit(idx, box->active_mask);
+
+ local64_set(&event->hw.prev_count, uncore_read_counter(box, event));
+ uncore_enable_event(box, event);
+
+ if (box->n_active == 1)
+ uncore_pmu_start_hrtimer(box);
+}
+
+void uncore_pmu_event_stop(struct perf_event *event, int flags)
+{
+ struct intel_uncore_box *box = uncore_event_to_box(event);
+ struct hw_perf_event *hwc = &event->hw;
+
+ /* Cannot disable free running counter which is read-only */
+ if (uncore_pmc_freerunning(hwc->idx)) {
+ list_del(&event->active_entry);
+ if (--box->n_active == 0)
+ uncore_pmu_cancel_hrtimer(box);
+ uncore_perf_event_update(box, event);
+ return;
+ }
+
+ if (__test_and_clear_bit(hwc->idx, box->active_mask)) {
+ uncore_disable_event(box, event);
+ box->n_active--;
+ box->events[hwc->idx] = NULL;
+ WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
+ hwc->state |= PERF_HES_STOPPED;
+
+ if (box->n_active == 0)
+ uncore_pmu_cancel_hrtimer(box);
+ }
+
+ if ((flags & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
+ /*
+ * Drain the remaining delta count out of a event
+ * that we are disabling:
+ */
+ uncore_perf_event_update(box, event);
+ hwc->state |= PERF_HES_UPTODATE;
+ }
+}
+
+int uncore_pmu_event_add(struct perf_event *event, int flags)
+{
+ struct intel_uncore_box *box = uncore_event_to_box(event);
+ struct hw_perf_event *hwc = &event->hw;
+ int assign[UNCORE_PMC_IDX_MAX];
+ int i, n, ret;
+
+ if (!box)
+ return -ENODEV;
+
+ /*
+ * The free funning counter is assigned in event_init().
+ * The free running counter event and free running counter
+ * are 1:1 mapped. It doesn't need to be tracked in event_list.
+ */
+ if (uncore_pmc_freerunning(hwc->idx)) {
+ if (flags & PERF_EF_START)
+ uncore_pmu_event_start(event, 0);
+ return 0;
+ }
+
+ ret = n = uncore_collect_events(box, event, false);
+ if (ret < 0)
+ return ret;
+
+ hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+ if (!(flags & PERF_EF_START))
+ hwc->state |= PERF_HES_ARCH;
+
+ ret = uncore_assign_events(box, assign, n);
+ if (ret)
+ return ret;
+
+ /* save events moving to new counters */
+ for (i = 0; i < box->n_events; i++) {
+ event = box->event_list[i];
+ hwc = &event->hw;
+
+ if (hwc->idx == assign[i] &&
+ hwc->last_tag == box->tags[assign[i]])
+ continue;
+ /*
+ * Ensure we don't accidentally enable a stopped
+ * counter simply because we rescheduled.
+ */
+ if (hwc->state & PERF_HES_STOPPED)
+ hwc->state |= PERF_HES_ARCH;
+
+ uncore_pmu_event_stop(event, PERF_EF_UPDATE);
+ }
+
+ /* reprogram moved events into new counters */
+ for (i = 0; i < n; i++) {
+ event = box->event_list[i];
+ hwc = &event->hw;
+
+ if (hwc->idx != assign[i] ||
+ hwc->last_tag != box->tags[assign[i]])
+ uncore_assign_hw_event(box, event, assign[i]);
+ else if (i < box->n_events)
+ continue;
+
+ if (hwc->state & PERF_HES_ARCH)
+ continue;
+
+ uncore_pmu_event_start(event, 0);
+ }
+ box->n_events = n;
+
+ return 0;
+}
+
+void uncore_pmu_event_del(struct perf_event *event, int flags)
+{
+ struct intel_uncore_box *box = uncore_event_to_box(event);
+ int i;
+
+ uncore_pmu_event_stop(event, PERF_EF_UPDATE);
+
+ /*
+ * The event for free running counter is not tracked by event_list.
+ * It doesn't need to force event->hw.idx = -1 to reassign the counter.
+ * Because the event and the free running counter are 1:1 mapped.
+ */
+ if (uncore_pmc_freerunning(event->hw.idx))
+ return;
+
+ for (i = 0; i < box->n_events; i++) {
+ if (event == box->event_list[i]) {
+ uncore_put_event_constraint(box, event);
+
+ for (++i; i < box->n_events; i++)
+ box->event_list[i - 1] = box->event_list[i];
+
+ --box->n_events;
+ break;
+ }
+ }
+
+ event->hw.idx = -1;
+ event->hw.last_tag = ~0ULL;
+}
+
+void uncore_pmu_event_read(struct perf_event *event)
+{
+ struct intel_uncore_box *box = uncore_event_to_box(event);
+ uncore_perf_event_update(box, event);
+}
+
+/*
+ * validation ensures the group can be loaded onto the
+ * PMU if it was the only group available.
+ */
+static int uncore_validate_group(struct intel_uncore_pmu *pmu,
+ struct perf_event *event)
+{
+ struct perf_event *leader = event->group_leader;
+ struct intel_uncore_box *fake_box;
+ int ret = -EINVAL, n;
+
+ /* The free running counter is always active. */
+ if (uncore_pmc_freerunning(event->hw.idx))
+ return 0;
+
+ fake_box = uncore_alloc_box(pmu->type, NUMA_NO_NODE);
+ if (!fake_box)
+ return -ENOMEM;
+
+ fake_box->pmu = pmu;
+ /*
+ * the event is not yet connected with its
+ * siblings therefore we must first collect
+ * existing siblings, then add the new event
+ * before we can simulate the scheduling
+ */
+ n = uncore_collect_events(fake_box, leader, true);
+ if (n < 0)
+ goto out;
+
+ fake_box->n_events = n;
+ n = uncore_collect_events(fake_box, event, false);
+ if (n < 0)
+ goto out;
+
+ fake_box->n_events = n;
+
+ ret = uncore_assign_events(fake_box, NULL, n);
+out:
+ kfree(fake_box);
+ return ret;
+}
+
+static int uncore_pmu_event_init(struct perf_event *event)
+{
+ struct intel_uncore_pmu *pmu;
+ struct intel_uncore_box *box;
+ struct hw_perf_event *hwc = &event->hw;
+ int ret;
+
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ pmu = uncore_event_to_pmu(event);
+ /* no device found for this pmu */
+ if (pmu->func_id < 0)
+ return -ENOENT;
+
+ /* Sampling not supported yet */
+ if (hwc->sample_period)
+ return -EINVAL;
+
+ /*
+ * Place all uncore events for a particular physical package
+ * onto a single cpu
+ */
+ if (event->cpu < 0)
+ return -EINVAL;
+ box = uncore_pmu_to_box(pmu, event->cpu);
+ if (!box || box->cpu < 0)
+ return -EINVAL;
+ event->cpu = box->cpu;
+ event->pmu_private = box;
+
+ event->event_caps |= PERF_EV_CAP_READ_ACTIVE_PKG;
+
+ event->hw.idx = -1;
+ event->hw.last_tag = ~0ULL;
+ event->hw.extra_reg.idx = EXTRA_REG_NONE;
+ event->hw.branch_reg.idx = EXTRA_REG_NONE;
+
+ if (event->attr.config == UNCORE_FIXED_EVENT) {
+ /* no fixed counter */
+ if (!pmu->type->fixed_ctl)
+ return -EINVAL;
+ /*
+ * if there is only one fixed counter, only the first pmu
+ * can access the fixed counter
+ */
+ if (pmu->type->single_fixed && pmu->pmu_idx > 0)
+ return -EINVAL;
+
+ /* fixed counters have event field hardcoded to zero */
+ hwc->config = 0ULL;
+ } else if (is_freerunning_event(event)) {
+ hwc->config = event->attr.config;
+ if (!check_valid_freerunning_event(box, event))
+ return -EINVAL;
+ event->hw.idx = UNCORE_PMC_IDX_FREERUNNING;
+ /*
+ * The free running counter event and free running counter
+ * are always 1:1 mapped.
+ * The free running counter is always active.
+ * Assign the free running counter here.
+ */
+ event->hw.event_base = uncore_freerunning_counter(box, event);
+ } else {
+ hwc->config = event->attr.config &
+ (pmu->type->event_mask | ((u64)pmu->type->event_mask_ext << 32));
+ if (pmu->type->ops->hw_config) {
+ ret = pmu->type->ops->hw_config(box, event);
+ if (ret)
+ return ret;
+ }
+ }
+
+ if (event->group_leader != event)
+ ret = uncore_validate_group(pmu, event);
+ else
+ ret = 0;
+
+ return ret;
+}
+
+static void uncore_pmu_enable(struct pmu *pmu)
+{
+ struct intel_uncore_pmu *uncore_pmu;
+ struct intel_uncore_box *box;
+
+ uncore_pmu = container_of(pmu, struct intel_uncore_pmu, pmu);
+
+ box = uncore_pmu_to_box(uncore_pmu, smp_processor_id());
+ if (!box)
+ return;
+
+ if (uncore_pmu->type->ops->enable_box)
+ uncore_pmu->type->ops->enable_box(box);
+}
+
+static void uncore_pmu_disable(struct pmu *pmu)
+{
+ struct intel_uncore_pmu *uncore_pmu;
+ struct intel_uncore_box *box;
+
+ uncore_pmu = container_of(pmu, struct intel_uncore_pmu, pmu);
+
+ box = uncore_pmu_to_box(uncore_pmu, smp_processor_id());
+ if (!box)
+ return;
+
+ if (uncore_pmu->type->ops->disable_box)
+ uncore_pmu->type->ops->disable_box(box);
+}
+
+static ssize_t uncore_get_attr_cpumask(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return cpumap_print_to_pagebuf(true, buf, &uncore_cpu_mask);
+}
+
+static DEVICE_ATTR(cpumask, S_IRUGO, uncore_get_attr_cpumask, NULL);
+
+static struct attribute *uncore_pmu_attrs[] = {
+ &dev_attr_cpumask.attr,
+ NULL,
+};
+
+static const struct attribute_group uncore_pmu_attr_group = {
+ .attrs = uncore_pmu_attrs,
+};
+
+static inline int uncore_get_box_id(struct intel_uncore_type *type,
+ struct intel_uncore_pmu *pmu)
+{
+ return type->box_ids ? type->box_ids[pmu->pmu_idx] : pmu->pmu_idx;
+}
+
+void uncore_get_alias_name(char *pmu_name, struct intel_uncore_pmu *pmu)
+{
+ struct intel_uncore_type *type = pmu->type;
+
+ if (type->num_boxes == 1)
+ sprintf(pmu_name, "uncore_type_%u", type->type_id);
+ else {
+ sprintf(pmu_name, "uncore_type_%u_%d",
+ type->type_id, uncore_get_box_id(type, pmu));
+ }
+}
+
+static void uncore_get_pmu_name(struct intel_uncore_pmu *pmu)
+{
+ struct intel_uncore_type *type = pmu->type;
+
+ /*
+ * No uncore block name in discovery table.
+ * Use uncore_type_&typeid_&boxid as name.
+ */
+ if (!type->name) {
+ uncore_get_alias_name(pmu->name, pmu);
+ return;
+ }
+
+ if (type->num_boxes == 1) {
+ if (strlen(type->name) > 0)
+ sprintf(pmu->name, "uncore_%s", type->name);
+ else
+ sprintf(pmu->name, "uncore");
+ } else {
+ /*
+ * Use the box ID from the discovery table if applicable.
+ */
+ sprintf(pmu->name, "uncore_%s_%d", type->name,
+ uncore_get_box_id(type, pmu));
+ }
+}
+
+static int uncore_pmu_register(struct intel_uncore_pmu *pmu)
+{
+ int ret;
+
+ if (!pmu->type->pmu) {
+ pmu->pmu = (struct pmu) {
+ .attr_groups = pmu->type->attr_groups,
+ .task_ctx_nr = perf_invalid_context,
+ .pmu_enable = uncore_pmu_enable,
+ .pmu_disable = uncore_pmu_disable,
+ .event_init = uncore_pmu_event_init,
+ .add = uncore_pmu_event_add,
+ .del = uncore_pmu_event_del,
+ .start = uncore_pmu_event_start,
+ .stop = uncore_pmu_event_stop,
+ .read = uncore_pmu_event_read,
+ .module = THIS_MODULE,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
+ .attr_update = pmu->type->attr_update,
+ };
+ } else {
+ pmu->pmu = *pmu->type->pmu;
+ pmu->pmu.attr_groups = pmu->type->attr_groups;
+ pmu->pmu.attr_update = pmu->type->attr_update;
+ }
+
+ uncore_get_pmu_name(pmu);
+
+ ret = perf_pmu_register(&pmu->pmu, pmu->name, -1);
+ if (!ret)
+ pmu->registered = true;
+ return ret;
+}
+
+static void uncore_pmu_unregister(struct intel_uncore_pmu *pmu)
+{
+ if (!pmu->registered)
+ return;
+ perf_pmu_unregister(&pmu->pmu);
+ pmu->registered = false;
+}
+
+static void uncore_free_boxes(struct intel_uncore_pmu *pmu)
+{
+ int die;
+
+ for (die = 0; die < uncore_max_dies(); die++)
+ kfree(pmu->boxes[die]);
+ kfree(pmu->boxes);
+}
+
+static void uncore_type_exit(struct intel_uncore_type *type)
+{
+ struct intel_uncore_pmu *pmu = type->pmus;
+ int i;
+
+ if (type->cleanup_mapping)
+ type->cleanup_mapping(type);
+
+ if (pmu) {
+ for (i = 0; i < type->num_boxes; i++, pmu++) {
+ uncore_pmu_unregister(pmu);
+ uncore_free_boxes(pmu);
+ }
+ kfree(type->pmus);
+ type->pmus = NULL;
+ }
+ if (type->box_ids) {
+ kfree(type->box_ids);
+ type->box_ids = NULL;
+ }
+ kfree(type->events_group);
+ type->events_group = NULL;
+}
+
+static void uncore_types_exit(struct intel_uncore_type **types)
+{
+ for (; *types; types++)
+ uncore_type_exit(*types);
+}
+
+static int __init uncore_type_init(struct intel_uncore_type *type, bool setid)
+{
+ struct intel_uncore_pmu *pmus;
+ size_t size;
+ int i, j;
+
+ pmus = kcalloc(type->num_boxes, sizeof(*pmus), GFP_KERNEL);
+ if (!pmus)
+ return -ENOMEM;
+
+ size = uncore_max_dies() * sizeof(struct intel_uncore_box *);
+
+ for (i = 0; i < type->num_boxes; i++) {
+ pmus[i].func_id = setid ? i : -1;
+ pmus[i].pmu_idx = i;
+ pmus[i].type = type;
+ pmus[i].boxes = kzalloc(size, GFP_KERNEL);
+ if (!pmus[i].boxes)
+ goto err;
+ }
+
+ type->pmus = pmus;
+ type->unconstrainted = (struct event_constraint)
+ __EVENT_CONSTRAINT(0, (1ULL << type->num_counters) - 1,
+ 0, type->num_counters, 0, 0);
+
+ if (type->event_descs) {
+ struct {
+ struct attribute_group group;
+ struct attribute *attrs[];
+ } *attr_group;
+ for (i = 0; type->event_descs[i].attr.attr.name; i++);
+
+ attr_group = kzalloc(struct_size(attr_group, attrs, i + 1),
+ GFP_KERNEL);
+ if (!attr_group)
+ goto err;
+
+ attr_group->group.name = "events";
+ attr_group->group.attrs = attr_group->attrs;
+
+ for (j = 0; j < i; j++)
+ attr_group->attrs[j] = &type->event_descs[j].attr.attr;
+
+ type->events_group = &attr_group->group;
+ }
+
+ type->pmu_group = &uncore_pmu_attr_group;
+
+ if (type->set_mapping)
+ type->set_mapping(type);
+
+ return 0;
+
+err:
+ for (i = 0; i < type->num_boxes; i++)
+ kfree(pmus[i].boxes);
+ kfree(pmus);
+
+ return -ENOMEM;
+}
+
+static int __init
+uncore_types_init(struct intel_uncore_type **types, bool setid)
+{
+ int ret;
+
+ for (; *types; types++) {
+ ret = uncore_type_init(*types, setid);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+/*
+ * Get the die information of a PCI device.
+ * @pdev: The PCI device.
+ * @die: The die id which the device maps to.
+ */
+static int uncore_pci_get_dev_die_info(struct pci_dev *pdev, int *die)
+{
+ *die = uncore_pcibus_to_dieid(pdev->bus);
+ if (*die < 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static struct intel_uncore_pmu *
+uncore_pci_find_dev_pmu_from_types(struct pci_dev *pdev)
+{
+ struct intel_uncore_type **types = uncore_pci_uncores;
+ struct intel_uncore_type *type;
+ u64 box_ctl;
+ int i, die;
+
+ for (; *types; types++) {
+ type = *types;
+ for (die = 0; die < __uncore_max_dies; die++) {
+ for (i = 0; i < type->num_boxes; i++) {
+ if (!type->box_ctls[die])
+ continue;
+ box_ctl = type->box_ctls[die] + type->pci_offsets[i];
+ if (pdev->devfn == UNCORE_DISCOVERY_PCI_DEVFN(box_ctl) &&
+ pdev->bus->number == UNCORE_DISCOVERY_PCI_BUS(box_ctl) &&
+ pci_domain_nr(pdev->bus) == UNCORE_DISCOVERY_PCI_DOMAIN(box_ctl))
+ return &type->pmus[i];
+ }
+ }
+ }
+
+ return NULL;
+}
+
+/*
+ * Find the PMU of a PCI device.
+ * @pdev: The PCI device.
+ * @ids: The ID table of the available PCI devices with a PMU.
+ * If NULL, search the whole uncore_pci_uncores.
+ */
+static struct intel_uncore_pmu *
+uncore_pci_find_dev_pmu(struct pci_dev *pdev, const struct pci_device_id *ids)
+{
+ struct intel_uncore_pmu *pmu = NULL;
+ struct intel_uncore_type *type;
+ kernel_ulong_t data;
+ unsigned int devfn;
+
+ if (!ids)
+ return uncore_pci_find_dev_pmu_from_types(pdev);
+
+ while (ids && ids->vendor) {
+ if ((ids->vendor == pdev->vendor) &&
+ (ids->device == pdev->device)) {
+ data = ids->driver_data;
+ devfn = PCI_DEVFN(UNCORE_PCI_DEV_DEV(data),
+ UNCORE_PCI_DEV_FUNC(data));
+ if (devfn == pdev->devfn) {
+ type = uncore_pci_uncores[UNCORE_PCI_DEV_TYPE(data)];
+ pmu = &type->pmus[UNCORE_PCI_DEV_IDX(data)];
+ break;
+ }
+ }
+ ids++;
+ }
+ return pmu;
+}
+
+/*
+ * Register the PMU for a PCI device
+ * @pdev: The PCI device.
+ * @type: The corresponding PMU type of the device.
+ * @pmu: The corresponding PMU of the device.
+ * @die: The die id which the device maps to.
+ */
+static int uncore_pci_pmu_register(struct pci_dev *pdev,
+ struct intel_uncore_type *type,
+ struct intel_uncore_pmu *pmu,
+ int die)
+{
+ struct intel_uncore_box *box;
+ int ret;
+
+ if (WARN_ON_ONCE(pmu->boxes[die] != NULL))
+ return -EINVAL;
+
+ box = uncore_alloc_box(type, NUMA_NO_NODE);
+ if (!box)
+ return -ENOMEM;
+
+ if (pmu->func_id < 0)
+ pmu->func_id = pdev->devfn;
+ else
+ WARN_ON_ONCE(pmu->func_id != pdev->devfn);
+
+ atomic_inc(&box->refcnt);
+ box->dieid = die;
+ box->pci_dev = pdev;
+ box->pmu = pmu;
+ uncore_box_init(box);
+
+ pmu->boxes[die] = box;
+ if (atomic_inc_return(&pmu->activeboxes) > 1)
+ return 0;
+
+ /* First active box registers the pmu */
+ ret = uncore_pmu_register(pmu);
+ if (ret) {
+ pmu->boxes[die] = NULL;
+ uncore_box_exit(box);
+ kfree(box);
+ }
+ return ret;
+}
+
+/*
+ * add a pci uncore device
+ */
+static int uncore_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+ struct intel_uncore_type *type;
+ struct intel_uncore_pmu *pmu = NULL;
+ int die, ret;
+
+ ret = uncore_pci_get_dev_die_info(pdev, &die);
+ if (ret)
+ return ret;
+
+ if (UNCORE_PCI_DEV_TYPE(id->driver_data) == UNCORE_EXTRA_PCI_DEV) {
+ int idx = UNCORE_PCI_DEV_IDX(id->driver_data);
+
+ uncore_extra_pci_dev[die].dev[idx] = pdev;
+ pci_set_drvdata(pdev, NULL);
+ return 0;
+ }
+
+ type = uncore_pci_uncores[UNCORE_PCI_DEV_TYPE(id->driver_data)];
+
+ /*
+ * Some platforms, e.g. Knights Landing, use a common PCI device ID
+ * for multiple instances of an uncore PMU device type. We should check
+ * PCI slot and func to indicate the uncore box.
+ */
+ if (id->driver_data & ~0xffff) {
+ struct pci_driver *pci_drv = to_pci_driver(pdev->dev.driver);
+
+ pmu = uncore_pci_find_dev_pmu(pdev, pci_drv->id_table);
+ if (pmu == NULL)
+ return -ENODEV;
+ } else {
+ /*
+ * for performance monitoring unit with multiple boxes,
+ * each box has a different function id.
+ */
+ pmu = &type->pmus[UNCORE_PCI_DEV_IDX(id->driver_data)];
+ }
+
+ ret = uncore_pci_pmu_register(pdev, type, pmu, die);
+
+ pci_set_drvdata(pdev, pmu->boxes[die]);
+
+ return ret;
+}
+
+/*
+ * Unregister the PMU of a PCI device
+ * @pmu: The corresponding PMU is unregistered.
+ * @die: The die id which the device maps to.
+ */
+static void uncore_pci_pmu_unregister(struct intel_uncore_pmu *pmu, int die)
+{
+ struct intel_uncore_box *box = pmu->boxes[die];
+
+ pmu->boxes[die] = NULL;
+ if (atomic_dec_return(&pmu->activeboxes) == 0)
+ uncore_pmu_unregister(pmu);
+ uncore_box_exit(box);
+ kfree(box);
+}
+
+static void uncore_pci_remove(struct pci_dev *pdev)
+{
+ struct intel_uncore_box *box;
+ struct intel_uncore_pmu *pmu;
+ int i, die;
+
+ if (uncore_pci_get_dev_die_info(pdev, &die))
+ return;
+
+ box = pci_get_drvdata(pdev);
+ if (!box) {
+ for (i = 0; i < UNCORE_EXTRA_PCI_DEV_MAX; i++) {
+ if (uncore_extra_pci_dev[die].dev[i] == pdev) {
+ uncore_extra_pci_dev[die].dev[i] = NULL;
+ break;
+ }
+ }
+ WARN_ON_ONCE(i >= UNCORE_EXTRA_PCI_DEV_MAX);
+ return;
+ }
+
+ pmu = box->pmu;
+
+ pci_set_drvdata(pdev, NULL);
+
+ uncore_pci_pmu_unregister(pmu, die);
+}
+
+static int uncore_bus_notify(struct notifier_block *nb,
+ unsigned long action, void *data,
+ const struct pci_device_id *ids)
+{
+ struct device *dev = data;
+ struct pci_dev *pdev = to_pci_dev(dev);
+ struct intel_uncore_pmu *pmu;
+ int die;
+
+ /* Unregister the PMU when the device is going to be deleted. */
+ if (action != BUS_NOTIFY_DEL_DEVICE)
+ return NOTIFY_DONE;
+
+ pmu = uncore_pci_find_dev_pmu(pdev, ids);
+ if (!pmu)
+ return NOTIFY_DONE;
+
+ if (uncore_pci_get_dev_die_info(pdev, &die))
+ return NOTIFY_DONE;
+
+ uncore_pci_pmu_unregister(pmu, die);
+
+ return NOTIFY_OK;
+}
+
+static int uncore_pci_sub_bus_notify(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ return uncore_bus_notify(nb, action, data,
+ uncore_pci_sub_driver->id_table);
+}
+
+static struct notifier_block uncore_pci_sub_notifier = {
+ .notifier_call = uncore_pci_sub_bus_notify,
+};
+
+static void uncore_pci_sub_driver_init(void)
+{
+ const struct pci_device_id *ids = uncore_pci_sub_driver->id_table;
+ struct intel_uncore_type *type;
+ struct intel_uncore_pmu *pmu;
+ struct pci_dev *pci_sub_dev;
+ bool notify = false;
+ unsigned int devfn;
+ int die;
+
+ while (ids && ids->vendor) {
+ pci_sub_dev = NULL;
+ type = uncore_pci_uncores[UNCORE_PCI_DEV_TYPE(ids->driver_data)];
+ /*
+ * Search the available device, and register the
+ * corresponding PMU.
+ */
+ while ((pci_sub_dev = pci_get_device(PCI_VENDOR_ID_INTEL,
+ ids->device, pci_sub_dev))) {
+ devfn = PCI_DEVFN(UNCORE_PCI_DEV_DEV(ids->driver_data),
+ UNCORE_PCI_DEV_FUNC(ids->driver_data));
+ if (devfn != pci_sub_dev->devfn)
+ continue;
+
+ pmu = &type->pmus[UNCORE_PCI_DEV_IDX(ids->driver_data)];
+ if (!pmu)
+ continue;
+
+ if (uncore_pci_get_dev_die_info(pci_sub_dev, &die))
+ continue;
+
+ if (!uncore_pci_pmu_register(pci_sub_dev, type, pmu,
+ die))
+ notify = true;
+ }
+ ids++;
+ }
+
+ if (notify && bus_register_notifier(&pci_bus_type, &uncore_pci_sub_notifier))
+ notify = false;
+
+ if (!notify)
+ uncore_pci_sub_driver = NULL;
+}
+
+static int uncore_pci_bus_notify(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ return uncore_bus_notify(nb, action, data, NULL);
+}
+
+static struct notifier_block uncore_pci_notifier = {
+ .notifier_call = uncore_pci_bus_notify,
+};
+
+
+static void uncore_pci_pmus_register(void)
+{
+ struct intel_uncore_type **types = uncore_pci_uncores;
+ struct intel_uncore_type *type;
+ struct intel_uncore_pmu *pmu;
+ struct pci_dev *pdev;
+ u64 box_ctl;
+ int i, die;
+
+ for (; *types; types++) {
+ type = *types;
+ for (die = 0; die < __uncore_max_dies; die++) {
+ for (i = 0; i < type->num_boxes; i++) {
+ if (!type->box_ctls[die])
+ continue;
+ box_ctl = type->box_ctls[die] + type->pci_offsets[i];
+ pdev = pci_get_domain_bus_and_slot(UNCORE_DISCOVERY_PCI_DOMAIN(box_ctl),
+ UNCORE_DISCOVERY_PCI_BUS(box_ctl),
+ UNCORE_DISCOVERY_PCI_DEVFN(box_ctl));
+ if (!pdev)
+ continue;
+ pmu = &type->pmus[i];
+
+ uncore_pci_pmu_register(pdev, type, pmu, die);
+ }
+ }
+ }
+
+ bus_register_notifier(&pci_bus_type, &uncore_pci_notifier);
+}
+
+static int __init uncore_pci_init(void)
+{
+ size_t size;
+ int ret;
+
+ size = uncore_max_dies() * sizeof(struct pci_extra_dev);
+ uncore_extra_pci_dev = kzalloc(size, GFP_KERNEL);
+ if (!uncore_extra_pci_dev) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ ret = uncore_types_init(uncore_pci_uncores, false);
+ if (ret)
+ goto errtype;
+
+ if (uncore_pci_driver) {
+ uncore_pci_driver->probe = uncore_pci_probe;
+ uncore_pci_driver->remove = uncore_pci_remove;
+
+ ret = pci_register_driver(uncore_pci_driver);
+ if (ret)
+ goto errtype;
+ } else
+ uncore_pci_pmus_register();
+
+ if (uncore_pci_sub_driver)
+ uncore_pci_sub_driver_init();
+
+ pcidrv_registered = true;
+ return 0;
+
+errtype:
+ uncore_types_exit(uncore_pci_uncores);
+ kfree(uncore_extra_pci_dev);
+ uncore_extra_pci_dev = NULL;
+ uncore_free_pcibus_map();
+err:
+ uncore_pci_uncores = empty_uncore;
+ return ret;
+}
+
+static void uncore_pci_exit(void)
+{
+ if (pcidrv_registered) {
+ pcidrv_registered = false;
+ if (uncore_pci_sub_driver)
+ bus_unregister_notifier(&pci_bus_type, &uncore_pci_sub_notifier);
+ if (uncore_pci_driver)
+ pci_unregister_driver(uncore_pci_driver);
+ else
+ bus_unregister_notifier(&pci_bus_type, &uncore_pci_notifier);
+ uncore_types_exit(uncore_pci_uncores);
+ kfree(uncore_extra_pci_dev);
+ uncore_free_pcibus_map();
+ }
+}
+
+static void uncore_change_type_ctx(struct intel_uncore_type *type, int old_cpu,
+ int new_cpu)
+{
+ struct intel_uncore_pmu *pmu = type->pmus;
+ struct intel_uncore_box *box;
+ int i, die;
+
+ die = topology_logical_die_id(old_cpu < 0 ? new_cpu : old_cpu);
+ for (i = 0; i < type->num_boxes; i++, pmu++) {
+ box = pmu->boxes[die];
+ if (!box)
+ continue;
+
+ if (old_cpu < 0) {
+ WARN_ON_ONCE(box->cpu != -1);
+ box->cpu = new_cpu;
+ continue;
+ }
+
+ WARN_ON_ONCE(box->cpu != old_cpu);
+ box->cpu = -1;
+ if (new_cpu < 0)
+ continue;
+
+ uncore_pmu_cancel_hrtimer(box);
+ perf_pmu_migrate_context(&pmu->pmu, old_cpu, new_cpu);
+ box->cpu = new_cpu;
+ }
+}
+
+static void uncore_change_context(struct intel_uncore_type **uncores,
+ int old_cpu, int new_cpu)
+{
+ for (; *uncores; uncores++)
+ uncore_change_type_ctx(*uncores, old_cpu, new_cpu);
+}
+
+static void uncore_box_unref(struct intel_uncore_type **types, int id)
+{
+ struct intel_uncore_type *type;
+ struct intel_uncore_pmu *pmu;
+ struct intel_uncore_box *box;
+ int i;
+
+ for (; *types; types++) {
+ type = *types;
+ pmu = type->pmus;
+ for (i = 0; i < type->num_boxes; i++, pmu++) {
+ box = pmu->boxes[id];
+ if (box && atomic_dec_return(&box->refcnt) == 0)
+ uncore_box_exit(box);
+ }
+ }
+}
+
+static int uncore_event_cpu_offline(unsigned int cpu)
+{
+ int die, target;
+
+ /* Check if exiting cpu is used for collecting uncore events */
+ if (!cpumask_test_and_clear_cpu(cpu, &uncore_cpu_mask))
+ goto unref;
+ /* Find a new cpu to collect uncore events */
+ target = cpumask_any_but(topology_die_cpumask(cpu), cpu);
+
+ /* Migrate uncore events to the new target */
+ if (target < nr_cpu_ids)
+ cpumask_set_cpu(target, &uncore_cpu_mask);
+ else
+ target = -1;
+
+ uncore_change_context(uncore_msr_uncores, cpu, target);
+ uncore_change_context(uncore_mmio_uncores, cpu, target);
+ uncore_change_context(uncore_pci_uncores, cpu, target);
+
+unref:
+ /* Clear the references */
+ die = topology_logical_die_id(cpu);
+ uncore_box_unref(uncore_msr_uncores, die);
+ uncore_box_unref(uncore_mmio_uncores, die);
+ return 0;
+}
+
+static int allocate_boxes(struct intel_uncore_type **types,
+ unsigned int die, unsigned int cpu)
+{
+ struct intel_uncore_box *box, *tmp;
+ struct intel_uncore_type *type;
+ struct intel_uncore_pmu *pmu;
+ LIST_HEAD(allocated);
+ int i;
+
+ /* Try to allocate all required boxes */
+ for (; *types; types++) {
+ type = *types;
+ pmu = type->pmus;
+ for (i = 0; i < type->num_boxes; i++, pmu++) {
+ if (pmu->boxes[die])
+ continue;
+ box = uncore_alloc_box(type, cpu_to_node(cpu));
+ if (!box)
+ goto cleanup;
+ box->pmu = pmu;
+ box->dieid = die;
+ list_add(&box->active_list, &allocated);
+ }
+ }
+ /* Install them in the pmus */
+ list_for_each_entry_safe(box, tmp, &allocated, active_list) {
+ list_del_init(&box->active_list);
+ box->pmu->boxes[die] = box;
+ }
+ return 0;
+
+cleanup:
+ list_for_each_entry_safe(box, tmp, &allocated, active_list) {
+ list_del_init(&box->active_list);
+ kfree(box);
+ }
+ return -ENOMEM;
+}
+
+static int uncore_box_ref(struct intel_uncore_type **types,
+ int id, unsigned int cpu)
+{
+ struct intel_uncore_type *type;
+ struct intel_uncore_pmu *pmu;
+ struct intel_uncore_box *box;
+ int i, ret;
+
+ ret = allocate_boxes(types, id, cpu);
+ if (ret)
+ return ret;
+
+ for (; *types; types++) {
+ type = *types;
+ pmu = type->pmus;
+ for (i = 0; i < type->num_boxes; i++, pmu++) {
+ box = pmu->boxes[id];
+ if (box && atomic_inc_return(&box->refcnt) == 1)
+ uncore_box_init(box);
+ }
+ }
+ return 0;
+}
+
+static int uncore_event_cpu_online(unsigned int cpu)
+{
+ int die, target, msr_ret, mmio_ret;
+
+ die = topology_logical_die_id(cpu);
+ msr_ret = uncore_box_ref(uncore_msr_uncores, die, cpu);
+ mmio_ret = uncore_box_ref(uncore_mmio_uncores, die, cpu);
+ if (msr_ret && mmio_ret)
+ return -ENOMEM;
+
+ /*
+ * Check if there is an online cpu in the package
+ * which collects uncore events already.
+ */
+ target = cpumask_any_and(&uncore_cpu_mask, topology_die_cpumask(cpu));
+ if (target < nr_cpu_ids)
+ return 0;
+
+ cpumask_set_cpu(cpu, &uncore_cpu_mask);
+
+ if (!msr_ret)
+ uncore_change_context(uncore_msr_uncores, -1, cpu);
+ if (!mmio_ret)
+ uncore_change_context(uncore_mmio_uncores, -1, cpu);
+ uncore_change_context(uncore_pci_uncores, -1, cpu);
+ return 0;
+}
+
+static int __init type_pmu_register(struct intel_uncore_type *type)
+{
+ int i, ret;
+
+ for (i = 0; i < type->num_boxes; i++) {
+ ret = uncore_pmu_register(&type->pmus[i]);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static int __init uncore_msr_pmus_register(void)
+{
+ struct intel_uncore_type **types = uncore_msr_uncores;
+ int ret;
+
+ for (; *types; types++) {
+ ret = type_pmu_register(*types);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+static int __init uncore_cpu_init(void)
+{
+ int ret;
+
+ ret = uncore_types_init(uncore_msr_uncores, true);
+ if (ret)
+ goto err;
+
+ ret = uncore_msr_pmus_register();
+ if (ret)
+ goto err;
+ return 0;
+err:
+ uncore_types_exit(uncore_msr_uncores);
+ uncore_msr_uncores = empty_uncore;
+ return ret;
+}
+
+static int __init uncore_mmio_init(void)
+{
+ struct intel_uncore_type **types = uncore_mmio_uncores;
+ int ret;
+
+ ret = uncore_types_init(types, true);
+ if (ret)
+ goto err;
+
+ for (; *types; types++) {
+ ret = type_pmu_register(*types);
+ if (ret)
+ goto err;
+ }
+ return 0;
+err:
+ uncore_types_exit(uncore_mmio_uncores);
+ uncore_mmio_uncores = empty_uncore;
+ return ret;
+}
+
+struct intel_uncore_init_fun {
+ void (*cpu_init)(void);
+ int (*pci_init)(void);
+ void (*mmio_init)(void);
+ /* Discovery table is required */
+ bool use_discovery;
+ /* The units in the discovery table should be ignored. */
+ int *uncore_units_ignore;
+};
+
+static const struct intel_uncore_init_fun nhm_uncore_init __initconst = {
+ .cpu_init = nhm_uncore_cpu_init,
+};
+
+static const struct intel_uncore_init_fun snb_uncore_init __initconst = {
+ .cpu_init = snb_uncore_cpu_init,
+ .pci_init = snb_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun ivb_uncore_init __initconst = {
+ .cpu_init = snb_uncore_cpu_init,
+ .pci_init = ivb_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun hsw_uncore_init __initconst = {
+ .cpu_init = snb_uncore_cpu_init,
+ .pci_init = hsw_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun bdw_uncore_init __initconst = {
+ .cpu_init = snb_uncore_cpu_init,
+ .pci_init = bdw_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun snbep_uncore_init __initconst = {
+ .cpu_init = snbep_uncore_cpu_init,
+ .pci_init = snbep_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun nhmex_uncore_init __initconst = {
+ .cpu_init = nhmex_uncore_cpu_init,
+};
+
+static const struct intel_uncore_init_fun ivbep_uncore_init __initconst = {
+ .cpu_init = ivbep_uncore_cpu_init,
+ .pci_init = ivbep_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun hswep_uncore_init __initconst = {
+ .cpu_init = hswep_uncore_cpu_init,
+ .pci_init = hswep_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun bdx_uncore_init __initconst = {
+ .cpu_init = bdx_uncore_cpu_init,
+ .pci_init = bdx_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun knl_uncore_init __initconst = {
+ .cpu_init = knl_uncore_cpu_init,
+ .pci_init = knl_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun skl_uncore_init __initconst = {
+ .cpu_init = skl_uncore_cpu_init,
+ .pci_init = skl_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun skx_uncore_init __initconst = {
+ .cpu_init = skx_uncore_cpu_init,
+ .pci_init = skx_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun icl_uncore_init __initconst = {
+ .cpu_init = icl_uncore_cpu_init,
+ .pci_init = skl_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun tgl_uncore_init __initconst = {
+ .cpu_init = tgl_uncore_cpu_init,
+ .mmio_init = tgl_uncore_mmio_init,
+};
+
+static const struct intel_uncore_init_fun tgl_l_uncore_init __initconst = {
+ .cpu_init = tgl_uncore_cpu_init,
+ .mmio_init = tgl_l_uncore_mmio_init,
+};
+
+static const struct intel_uncore_init_fun rkl_uncore_init __initconst = {
+ .cpu_init = tgl_uncore_cpu_init,
+ .pci_init = skl_uncore_pci_init,
+};
+
+static const struct intel_uncore_init_fun adl_uncore_init __initconst = {
+ .cpu_init = adl_uncore_cpu_init,
+ .mmio_init = adl_uncore_mmio_init,
+};
+
+static const struct intel_uncore_init_fun mtl_uncore_init __initconst = {
+ .cpu_init = mtl_uncore_cpu_init,
+ .mmio_init = adl_uncore_mmio_init,
+};
+
+static const struct intel_uncore_init_fun icx_uncore_init __initconst = {
+ .cpu_init = icx_uncore_cpu_init,
+ .pci_init = icx_uncore_pci_init,
+ .mmio_init = icx_uncore_mmio_init,
+};
+
+static const struct intel_uncore_init_fun snr_uncore_init __initconst = {
+ .cpu_init = snr_uncore_cpu_init,
+ .pci_init = snr_uncore_pci_init,
+ .mmio_init = snr_uncore_mmio_init,
+};
+
+static const struct intel_uncore_init_fun spr_uncore_init __initconst = {
+ .cpu_init = spr_uncore_cpu_init,
+ .pci_init = spr_uncore_pci_init,
+ .mmio_init = spr_uncore_mmio_init,
+ .use_discovery = true,
+ .uncore_units_ignore = spr_uncore_units_ignore,
+};
+
+static const struct intel_uncore_init_fun generic_uncore_init __initconst = {
+ .cpu_init = intel_uncore_generic_uncore_cpu_init,
+ .pci_init = intel_uncore_generic_uncore_pci_init,
+ .mmio_init = intel_uncore_generic_uncore_mmio_init,
+};
+
+static const struct x86_cpu_id intel_uncore_match[] __initconst = {
+ X86_MATCH_INTEL_FAM6_MODEL(NEHALEM_EP, &nhm_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(NEHALEM, &nhm_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(WESTMERE, &nhm_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(WESTMERE_EP, &nhm_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE, &snb_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE, &ivb_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL, &hsw_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL_L, &hsw_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL_G, &hsw_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL, &bdw_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_G, &bdw_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE_X, &snbep_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(NEHALEM_EX, &nhmex_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(WESTMERE_EX, &nhmex_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE_X, &ivbep_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL_X, &hswep_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_X, &bdx_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_D, &bdx_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL, &knl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNM, &knl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE, &skl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_L, &skl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_X, &skx_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE_L, &skl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE, &skl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE_L, &skl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE, &skl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, &icl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_NNPI, &icl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE, &icl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_D, &icx_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_X, &icx_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE_L, &tgl_l_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE, &tgl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ROCKETLAKE, &rkl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE, &adl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L, &adl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N, &adl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE, &adl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P, &adl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_S, &adl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(METEORLAKE, &mtl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(METEORLAKE_L, &mtl_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X, &spr_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(EMERALDRAPIDS_X, &spr_uncore_init),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, &snr_uncore_init),
+ {},
+};
+MODULE_DEVICE_TABLE(x86cpu, intel_uncore_match);
+
+static int __init intel_uncore_init(void)
+{
+ const struct x86_cpu_id *id;
+ struct intel_uncore_init_fun *uncore_init;
+ int pret = 0, cret = 0, mret = 0, ret;
+
+ if (boot_cpu_has(X86_FEATURE_HYPERVISOR))
+ return -ENODEV;
+
+ __uncore_max_dies =
+ topology_max_packages() * topology_max_die_per_package();
+
+ id = x86_match_cpu(intel_uncore_match);
+ if (!id) {
+ if (!uncore_no_discover && intel_uncore_has_discovery_tables(NULL))
+ uncore_init = (struct intel_uncore_init_fun *)&generic_uncore_init;
+ else
+ return -ENODEV;
+ } else {
+ uncore_init = (struct intel_uncore_init_fun *)id->driver_data;
+ if (uncore_no_discover && uncore_init->use_discovery)
+ return -ENODEV;
+ if (uncore_init->use_discovery &&
+ !intel_uncore_has_discovery_tables(uncore_init->uncore_units_ignore))
+ return -ENODEV;
+ }
+
+ if (uncore_init->pci_init) {
+ pret = uncore_init->pci_init();
+ if (!pret)
+ pret = uncore_pci_init();
+ }
+
+ if (uncore_init->cpu_init) {
+ uncore_init->cpu_init();
+ cret = uncore_cpu_init();
+ }
+
+ if (uncore_init->mmio_init) {
+ uncore_init->mmio_init();
+ mret = uncore_mmio_init();
+ }
+
+ if (cret && pret && mret) {
+ ret = -ENODEV;
+ goto free_discovery;
+ }
+
+ /* Install hotplug callbacks to setup the targets for each package */
+ ret = cpuhp_setup_state(CPUHP_AP_PERF_X86_UNCORE_ONLINE,
+ "perf/x86/intel/uncore:online",
+ uncore_event_cpu_online,
+ uncore_event_cpu_offline);
+ if (ret)
+ goto err;
+ return 0;
+
+err:
+ uncore_types_exit(uncore_msr_uncores);
+ uncore_types_exit(uncore_mmio_uncores);
+ uncore_pci_exit();
+free_discovery:
+ intel_uncore_clear_discovery_tables();
+ return ret;
+}
+module_init(intel_uncore_init);
+
+static void __exit intel_uncore_exit(void)
+{
+ cpuhp_remove_state(CPUHP_AP_PERF_X86_UNCORE_ONLINE);
+ uncore_types_exit(uncore_msr_uncores);
+ uncore_types_exit(uncore_mmio_uncores);
+ uncore_pci_exit();
+ intel_uncore_clear_discovery_tables();
+}
+module_exit(intel_uncore_exit);
diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h
new file mode 100644
index 000000000000..c30fb5bb1222
--- /dev/null
+++ b/arch/x86/events/intel/uncore.h
@@ -0,0 +1,639 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <asm/apicdef.h>
+#include <asm/intel-family.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
+
+#include <linux/perf_event.h>
+#include "../perf_event.h"
+
+#define UNCORE_PMU_NAME_LEN 32
+#define UNCORE_PMU_HRTIMER_INTERVAL (60LL * NSEC_PER_SEC)
+#define UNCORE_SNB_IMC_HRTIMER_INTERVAL (5ULL * NSEC_PER_SEC)
+
+#define UNCORE_FIXED_EVENT 0xff
+#define UNCORE_PMC_IDX_MAX_GENERIC 8
+#define UNCORE_PMC_IDX_MAX_FIXED 1
+#define UNCORE_PMC_IDX_MAX_FREERUNNING 1
+#define UNCORE_PMC_IDX_FIXED UNCORE_PMC_IDX_MAX_GENERIC
+#define UNCORE_PMC_IDX_FREERUNNING (UNCORE_PMC_IDX_FIXED + \
+ UNCORE_PMC_IDX_MAX_FIXED)
+#define UNCORE_PMC_IDX_MAX (UNCORE_PMC_IDX_FREERUNNING + \
+ UNCORE_PMC_IDX_MAX_FREERUNNING)
+
+#define UNCORE_PCI_DEV_FULL_DATA(dev, func, type, idx) \
+ ((dev << 24) | (func << 16) | (type << 8) | idx)
+#define UNCORE_PCI_DEV_DATA(type, idx) ((type << 8) | idx)
+#define UNCORE_PCI_DEV_DEV(data) ((data >> 24) & 0xff)
+#define UNCORE_PCI_DEV_FUNC(data) ((data >> 16) & 0xff)
+#define UNCORE_PCI_DEV_TYPE(data) ((data >> 8) & 0xff)
+#define UNCORE_PCI_DEV_IDX(data) (data & 0xff)
+#define UNCORE_EXTRA_PCI_DEV 0xff
+#define UNCORE_EXTRA_PCI_DEV_MAX 4
+
+#define UNCORE_EVENT_CONSTRAINT(c, n) EVENT_CONSTRAINT(c, n, 0xff)
+
+#define UNCORE_IGNORE_END -1
+
+struct pci_extra_dev {
+ struct pci_dev *dev[UNCORE_EXTRA_PCI_DEV_MAX];
+};
+
+struct intel_uncore_ops;
+struct intel_uncore_pmu;
+struct intel_uncore_box;
+struct uncore_event_desc;
+struct freerunning_counters;
+struct intel_uncore_topology;
+
+struct intel_uncore_type {
+ const char *name;
+ int num_counters;
+ int num_boxes;
+ int perf_ctr_bits;
+ int fixed_ctr_bits;
+ int num_freerunning_types;
+ int type_id;
+ unsigned perf_ctr;
+ unsigned event_ctl;
+ unsigned event_mask;
+ unsigned event_mask_ext;
+ unsigned fixed_ctr;
+ unsigned fixed_ctl;
+ unsigned box_ctl;
+ u64 *box_ctls; /* Unit ctrl addr of the first box of each die */
+ union {
+ unsigned msr_offset;
+ unsigned mmio_offset;
+ };
+ unsigned mmio_map_size;
+ unsigned num_shared_regs:8;
+ unsigned single_fixed:1;
+ unsigned pair_ctr_ctl:1;
+ union {
+ unsigned *msr_offsets;
+ unsigned *pci_offsets;
+ unsigned *mmio_offsets;
+ };
+ unsigned *box_ids;
+ struct event_constraint unconstrainted;
+ struct event_constraint *constraints;
+ struct intel_uncore_pmu *pmus;
+ struct intel_uncore_ops *ops;
+ struct uncore_event_desc *event_descs;
+ struct freerunning_counters *freerunning;
+ const struct attribute_group *attr_groups[4];
+ const struct attribute_group **attr_update;
+ struct pmu *pmu; /* for custom pmu ops */
+ /*
+ * Uncore PMU would store relevant platform topology configuration here
+ * to identify which platform component each PMON block of that type is
+ * supposed to monitor.
+ */
+ struct intel_uncore_topology **topology;
+ /*
+ * Optional callbacks for managing mapping of Uncore units to PMONs
+ */
+ int (*get_topology)(struct intel_uncore_type *type);
+ void (*set_mapping)(struct intel_uncore_type *type);
+ void (*cleanup_mapping)(struct intel_uncore_type *type);
+};
+
+#define pmu_group attr_groups[0]
+#define format_group attr_groups[1]
+#define events_group attr_groups[2]
+
+struct intel_uncore_ops {
+ void (*init_box)(struct intel_uncore_box *);
+ void (*exit_box)(struct intel_uncore_box *);
+ void (*disable_box)(struct intel_uncore_box *);
+ void (*enable_box)(struct intel_uncore_box *);
+ void (*disable_event)(struct intel_uncore_box *, struct perf_event *);
+ void (*enable_event)(struct intel_uncore_box *, struct perf_event *);
+ u64 (*read_counter)(struct intel_uncore_box *, struct perf_event *);
+ int (*hw_config)(struct intel_uncore_box *, struct perf_event *);
+ struct event_constraint *(*get_constraint)(struct intel_uncore_box *,
+ struct perf_event *);
+ void (*put_constraint)(struct intel_uncore_box *, struct perf_event *);
+};
+
+struct intel_uncore_pmu {
+ struct pmu pmu;
+ char name[UNCORE_PMU_NAME_LEN];
+ int pmu_idx;
+ int func_id;
+ bool registered;
+ atomic_t activeboxes;
+ struct intel_uncore_type *type;
+ struct intel_uncore_box **boxes;
+};
+
+struct intel_uncore_extra_reg {
+ raw_spinlock_t lock;
+ u64 config, config1, config2;
+ atomic_t ref;
+};
+
+struct intel_uncore_box {
+ int dieid; /* Logical die ID */
+ int n_active; /* number of active events */
+ int n_events;
+ int cpu; /* cpu to collect events */
+ unsigned long flags;
+ atomic_t refcnt;
+ struct perf_event *events[UNCORE_PMC_IDX_MAX];
+ struct perf_event *event_list[UNCORE_PMC_IDX_MAX];
+ struct event_constraint *event_constraint[UNCORE_PMC_IDX_MAX];
+ unsigned long active_mask[BITS_TO_LONGS(UNCORE_PMC_IDX_MAX)];
+ u64 tags[UNCORE_PMC_IDX_MAX];
+ struct pci_dev *pci_dev;
+ struct intel_uncore_pmu *pmu;
+ u64 hrtimer_duration; /* hrtimer timeout for this box */
+ struct hrtimer hrtimer;
+ struct list_head list;
+ struct list_head active_list;
+ void __iomem *io_addr;
+ struct intel_uncore_extra_reg shared_regs[];
+};
+
+/* CFL uncore 8th cbox MSRs */
+#define CFL_UNC_CBO_7_PERFEVTSEL0 0xf70
+#define CFL_UNC_CBO_7_PER_CTR0 0xf76
+
+#define UNCORE_BOX_FLAG_INITIATED 0
+/* event config registers are 8-byte apart */
+#define UNCORE_BOX_FLAG_CTL_OFFS8 1
+/* CFL 8th CBOX has different MSR space */
+#define UNCORE_BOX_FLAG_CFL8_CBOX_MSR_OFFS 2
+
+struct uncore_event_desc {
+ struct device_attribute attr;
+ const char *config;
+};
+
+struct freerunning_counters {
+ unsigned int counter_base;
+ unsigned int counter_offset;
+ unsigned int box_offset;
+ unsigned int num_counters;
+ unsigned int bits;
+ unsigned *box_offsets;
+};
+
+struct uncore_iio_topology {
+ int pci_bus_no;
+ int segment;
+};
+
+struct uncore_upi_topology {
+ int die_to;
+ int pmu_idx_to;
+ int enabled;
+};
+
+struct intel_uncore_topology {
+ int pmu_idx;
+ union {
+ void *untyped;
+ struct uncore_iio_topology *iio;
+ struct uncore_upi_topology *upi;
+ };
+};
+
+struct pci2phy_map {
+ struct list_head list;
+ int segment;
+ int pbus_to_dieid[256];
+};
+
+struct pci2phy_map *__find_pci2phy_map(int segment);
+int uncore_pcibus_to_dieid(struct pci_bus *bus);
+int uncore_die_to_segment(int die);
+int uncore_device_to_die(struct pci_dev *dev);
+
+ssize_t uncore_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf);
+
+static inline struct intel_uncore_pmu *dev_to_uncore_pmu(struct device *dev)
+{
+ return container_of(dev_get_drvdata(dev), struct intel_uncore_pmu, pmu);
+}
+
+#define to_device_attribute(n) container_of(n, struct device_attribute, attr)
+#define to_dev_ext_attribute(n) container_of(n, struct dev_ext_attribute, attr)
+#define attr_to_ext_attr(n) to_dev_ext_attribute(to_device_attribute(n))
+
+extern int __uncore_max_dies;
+#define uncore_max_dies() (__uncore_max_dies)
+
+#define INTEL_UNCORE_EVENT_DESC(_name, _config) \
+{ \
+ .attr = __ATTR(_name, 0444, uncore_event_show, NULL), \
+ .config = _config, \
+}
+
+#define DEFINE_UNCORE_FORMAT_ATTR(_var, _name, _format) \
+static ssize_t __uncore_##_var##_show(struct device *dev, \
+ struct device_attribute *attr, \
+ char *page) \
+{ \
+ BUILD_BUG_ON(sizeof(_format) >= PAGE_SIZE); \
+ return sprintf(page, _format "\n"); \
+} \
+static struct device_attribute format_attr_##_var = \
+ __ATTR(_name, 0444, __uncore_##_var##_show, NULL)
+
+static inline bool uncore_pmc_fixed(int idx)
+{
+ return idx == UNCORE_PMC_IDX_FIXED;
+}
+
+static inline bool uncore_pmc_freerunning(int idx)
+{
+ return idx == UNCORE_PMC_IDX_FREERUNNING;
+}
+
+static inline bool uncore_mmio_is_valid_offset(struct intel_uncore_box *box,
+ unsigned long offset)
+{
+ if (offset < box->pmu->type->mmio_map_size)
+ return true;
+
+ pr_warn_once("perf uncore: Invalid offset 0x%lx exceeds mapped area of %s.\n",
+ offset, box->pmu->type->name);
+
+ return false;
+}
+
+static inline
+unsigned int uncore_mmio_box_ctl(struct intel_uncore_box *box)
+{
+ return box->pmu->type->box_ctl +
+ box->pmu->type->mmio_offset * box->pmu->pmu_idx;
+}
+
+static inline unsigned uncore_pci_box_ctl(struct intel_uncore_box *box)
+{
+ return box->pmu->type->box_ctl;
+}
+
+static inline unsigned uncore_pci_fixed_ctl(struct intel_uncore_box *box)
+{
+ return box->pmu->type->fixed_ctl;
+}
+
+static inline unsigned uncore_pci_fixed_ctr(struct intel_uncore_box *box)
+{
+ return box->pmu->type->fixed_ctr;
+}
+
+static inline
+unsigned uncore_pci_event_ctl(struct intel_uncore_box *box, int idx)
+{
+ if (test_bit(UNCORE_BOX_FLAG_CTL_OFFS8, &box->flags))
+ return idx * 8 + box->pmu->type->event_ctl;
+
+ return idx * 4 + box->pmu->type->event_ctl;
+}
+
+static inline
+unsigned uncore_pci_perf_ctr(struct intel_uncore_box *box, int idx)
+{
+ return idx * 8 + box->pmu->type->perf_ctr;
+}
+
+static inline unsigned uncore_msr_box_offset(struct intel_uncore_box *box)
+{
+ struct intel_uncore_pmu *pmu = box->pmu;
+ return pmu->type->msr_offsets ?
+ pmu->type->msr_offsets[pmu->pmu_idx] :
+ pmu->type->msr_offset * pmu->pmu_idx;
+}
+
+static inline unsigned uncore_msr_box_ctl(struct intel_uncore_box *box)
+{
+ if (!box->pmu->type->box_ctl)
+ return 0;
+ return box->pmu->type->box_ctl + uncore_msr_box_offset(box);
+}
+
+static inline unsigned uncore_msr_fixed_ctl(struct intel_uncore_box *box)
+{
+ if (!box->pmu->type->fixed_ctl)
+ return 0;
+ return box->pmu->type->fixed_ctl + uncore_msr_box_offset(box);
+}
+
+static inline unsigned uncore_msr_fixed_ctr(struct intel_uncore_box *box)
+{
+ return box->pmu->type->fixed_ctr + uncore_msr_box_offset(box);
+}
+
+
+/*
+ * In the uncore document, there is no event-code assigned to free running
+ * counters. Some events need to be defined to indicate the free running
+ * counters. The events are encoded as event-code + umask-code.
+ *
+ * The event-code for all free running counters is 0xff, which is the same as
+ * the fixed counters.
+ *
+ * The umask-code is used to distinguish a fixed counter and a free running
+ * counter, and different types of free running counters.
+ * - For fixed counters, the umask-code is 0x0X.
+ * X indicates the index of the fixed counter, which starts from 0.
+ * - For free running counters, the umask-code uses the rest of the space.
+ * It would bare the format of 0xXY.
+ * X stands for the type of free running counters, which starts from 1.
+ * Y stands for the index of free running counters of same type, which
+ * starts from 0.
+ *
+ * For example, there are three types of IIO free running counters on Skylake
+ * server, IO CLOCKS counters, BANDWIDTH counters and UTILIZATION counters.
+ * The event-code for all the free running counters is 0xff.
+ * 'ioclk' is the first counter of IO CLOCKS. IO CLOCKS is the first type,
+ * which umask-code starts from 0x10.
+ * So 'ioclk' is encoded as event=0xff,umask=0x10
+ * 'bw_in_port2' is the third counter of BANDWIDTH counters. BANDWIDTH is
+ * the second type, which umask-code starts from 0x20.
+ * So 'bw_in_port2' is encoded as event=0xff,umask=0x22
+ */
+static inline unsigned int uncore_freerunning_idx(u64 config)
+{
+ return ((config >> 8) & 0xf);
+}
+
+#define UNCORE_FREERUNNING_UMASK_START 0x10
+
+static inline unsigned int uncore_freerunning_type(u64 config)
+{
+ return ((((config >> 8) - UNCORE_FREERUNNING_UMASK_START) >> 4) & 0xf);
+}
+
+static inline
+unsigned int uncore_freerunning_counter(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ unsigned int type = uncore_freerunning_type(event->hw.config);
+ unsigned int idx = uncore_freerunning_idx(event->hw.config);
+ struct intel_uncore_pmu *pmu = box->pmu;
+
+ return pmu->type->freerunning[type].counter_base +
+ pmu->type->freerunning[type].counter_offset * idx +
+ (pmu->type->freerunning[type].box_offsets ?
+ pmu->type->freerunning[type].box_offsets[pmu->pmu_idx] :
+ pmu->type->freerunning[type].box_offset * pmu->pmu_idx);
+}
+
+static inline
+unsigned uncore_msr_event_ctl(struct intel_uncore_box *box, int idx)
+{
+ if (test_bit(UNCORE_BOX_FLAG_CFL8_CBOX_MSR_OFFS, &box->flags)) {
+ return CFL_UNC_CBO_7_PERFEVTSEL0 +
+ (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx);
+ } else {
+ return box->pmu->type->event_ctl +
+ (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) +
+ uncore_msr_box_offset(box);
+ }
+}
+
+static inline
+unsigned uncore_msr_perf_ctr(struct intel_uncore_box *box, int idx)
+{
+ if (test_bit(UNCORE_BOX_FLAG_CFL8_CBOX_MSR_OFFS, &box->flags)) {
+ return CFL_UNC_CBO_7_PER_CTR0 +
+ (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx);
+ } else {
+ return box->pmu->type->perf_ctr +
+ (box->pmu->type->pair_ctr_ctl ? 2 * idx : idx) +
+ uncore_msr_box_offset(box);
+ }
+}
+
+static inline
+unsigned uncore_fixed_ctl(struct intel_uncore_box *box)
+{
+ if (box->pci_dev || box->io_addr)
+ return uncore_pci_fixed_ctl(box);
+ else
+ return uncore_msr_fixed_ctl(box);
+}
+
+static inline
+unsigned uncore_fixed_ctr(struct intel_uncore_box *box)
+{
+ if (box->pci_dev || box->io_addr)
+ return uncore_pci_fixed_ctr(box);
+ else
+ return uncore_msr_fixed_ctr(box);
+}
+
+static inline
+unsigned uncore_event_ctl(struct intel_uncore_box *box, int idx)
+{
+ if (box->pci_dev || box->io_addr)
+ return uncore_pci_event_ctl(box, idx);
+ else
+ return uncore_msr_event_ctl(box, idx);
+}
+
+static inline
+unsigned uncore_perf_ctr(struct intel_uncore_box *box, int idx)
+{
+ if (box->pci_dev || box->io_addr)
+ return uncore_pci_perf_ctr(box, idx);
+ else
+ return uncore_msr_perf_ctr(box, idx);
+}
+
+static inline int uncore_perf_ctr_bits(struct intel_uncore_box *box)
+{
+ return box->pmu->type->perf_ctr_bits;
+}
+
+static inline int uncore_fixed_ctr_bits(struct intel_uncore_box *box)
+{
+ return box->pmu->type->fixed_ctr_bits;
+}
+
+static inline
+unsigned int uncore_freerunning_bits(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ unsigned int type = uncore_freerunning_type(event->hw.config);
+
+ return box->pmu->type->freerunning[type].bits;
+}
+
+static inline int uncore_num_freerunning(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ unsigned int type = uncore_freerunning_type(event->hw.config);
+
+ return box->pmu->type->freerunning[type].num_counters;
+}
+
+static inline int uncore_num_freerunning_types(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ return box->pmu->type->num_freerunning_types;
+}
+
+static inline bool check_valid_freerunning_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ unsigned int type = uncore_freerunning_type(event->hw.config);
+ unsigned int idx = uncore_freerunning_idx(event->hw.config);
+
+ return (type < uncore_num_freerunning_types(box, event)) &&
+ (idx < uncore_num_freerunning(box, event));
+}
+
+static inline int uncore_num_counters(struct intel_uncore_box *box)
+{
+ return box->pmu->type->num_counters;
+}
+
+static inline bool is_freerunning_event(struct perf_event *event)
+{
+ u64 cfg = event->attr.config;
+
+ return ((cfg & UNCORE_FIXED_EVENT) == UNCORE_FIXED_EVENT) &&
+ (((cfg >> 8) & 0xff) >= UNCORE_FREERUNNING_UMASK_START);
+}
+
+/* Check and reject invalid config */
+static inline int uncore_freerunning_hw_config(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ if (is_freerunning_event(event))
+ return 0;
+
+ return -EINVAL;
+}
+
+static inline void uncore_disable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ box->pmu->type->ops->disable_event(box, event);
+}
+
+static inline void uncore_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ box->pmu->type->ops->enable_event(box, event);
+}
+
+static inline u64 uncore_read_counter(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ return box->pmu->type->ops->read_counter(box, event);
+}
+
+static inline void uncore_box_init(struct intel_uncore_box *box)
+{
+ if (!test_and_set_bit(UNCORE_BOX_FLAG_INITIATED, &box->flags)) {
+ if (box->pmu->type->ops->init_box)
+ box->pmu->type->ops->init_box(box);
+ }
+}
+
+static inline void uncore_box_exit(struct intel_uncore_box *box)
+{
+ if (test_and_clear_bit(UNCORE_BOX_FLAG_INITIATED, &box->flags)) {
+ if (box->pmu->type->ops->exit_box)
+ box->pmu->type->ops->exit_box(box);
+ }
+}
+
+static inline bool uncore_box_is_fake(struct intel_uncore_box *box)
+{
+ return (box->dieid < 0);
+}
+
+static inline struct intel_uncore_pmu *uncore_event_to_pmu(struct perf_event *event)
+{
+ return container_of(event->pmu, struct intel_uncore_pmu, pmu);
+}
+
+static inline struct intel_uncore_box *uncore_event_to_box(struct perf_event *event)
+{
+ return event->pmu_private;
+}
+
+struct intel_uncore_box *uncore_pmu_to_box(struct intel_uncore_pmu *pmu, int cpu);
+u64 uncore_msr_read_counter(struct intel_uncore_box *box, struct perf_event *event);
+void uncore_mmio_exit_box(struct intel_uncore_box *box);
+u64 uncore_mmio_read_counter(struct intel_uncore_box *box,
+ struct perf_event *event);
+void uncore_pmu_start_hrtimer(struct intel_uncore_box *box);
+void uncore_pmu_cancel_hrtimer(struct intel_uncore_box *box);
+void uncore_pmu_event_start(struct perf_event *event, int flags);
+void uncore_pmu_event_stop(struct perf_event *event, int flags);
+int uncore_pmu_event_add(struct perf_event *event, int flags);
+void uncore_pmu_event_del(struct perf_event *event, int flags);
+void uncore_pmu_event_read(struct perf_event *event);
+void uncore_perf_event_update(struct intel_uncore_box *box, struct perf_event *event);
+struct event_constraint *
+uncore_get_constraint(struct intel_uncore_box *box, struct perf_event *event);
+void uncore_put_constraint(struct intel_uncore_box *box, struct perf_event *event);
+u64 uncore_shared_reg_config(struct intel_uncore_box *box, int idx);
+void uncore_get_alias_name(char *pmu_name, struct intel_uncore_pmu *pmu);
+
+extern struct intel_uncore_type *empty_uncore[];
+extern struct intel_uncore_type **uncore_msr_uncores;
+extern struct intel_uncore_type **uncore_pci_uncores;
+extern struct intel_uncore_type **uncore_mmio_uncores;
+extern struct pci_driver *uncore_pci_driver;
+extern struct pci_driver *uncore_pci_sub_driver;
+extern raw_spinlock_t pci2phy_map_lock;
+extern struct list_head pci2phy_map_head;
+extern struct pci_extra_dev *uncore_extra_pci_dev;
+extern struct event_constraint uncore_constraint_empty;
+extern int spr_uncore_units_ignore[];
+
+/* uncore_snb.c */
+int snb_uncore_pci_init(void);
+int ivb_uncore_pci_init(void);
+int hsw_uncore_pci_init(void);
+int bdw_uncore_pci_init(void);
+int skl_uncore_pci_init(void);
+void snb_uncore_cpu_init(void);
+void nhm_uncore_cpu_init(void);
+void skl_uncore_cpu_init(void);
+void icl_uncore_cpu_init(void);
+void tgl_uncore_cpu_init(void);
+void adl_uncore_cpu_init(void);
+void mtl_uncore_cpu_init(void);
+void tgl_uncore_mmio_init(void);
+void tgl_l_uncore_mmio_init(void);
+void adl_uncore_mmio_init(void);
+int snb_pci2phy_map_init(int devid);
+
+/* uncore_snbep.c */
+int snbep_uncore_pci_init(void);
+void snbep_uncore_cpu_init(void);
+int ivbep_uncore_pci_init(void);
+void ivbep_uncore_cpu_init(void);
+int hswep_uncore_pci_init(void);
+void hswep_uncore_cpu_init(void);
+int bdx_uncore_pci_init(void);
+void bdx_uncore_cpu_init(void);
+int knl_uncore_pci_init(void);
+void knl_uncore_cpu_init(void);
+int skx_uncore_pci_init(void);
+void skx_uncore_cpu_init(void);
+int snr_uncore_pci_init(void);
+void snr_uncore_cpu_init(void);
+void snr_uncore_mmio_init(void);
+int icx_uncore_pci_init(void);
+void icx_uncore_cpu_init(void);
+void icx_uncore_mmio_init(void);
+int spr_uncore_pci_init(void);
+void spr_uncore_cpu_init(void);
+void spr_uncore_mmio_init(void);
+
+/* uncore_nhmex.c */
+void nhmex_uncore_cpu_init(void);
diff --git a/arch/x86/events/intel/uncore_discovery.c b/arch/x86/events/intel/uncore_discovery.c
new file mode 100644
index 000000000000..cb488e41807c
--- /dev/null
+++ b/arch/x86/events/intel/uncore_discovery.c
@@ -0,0 +1,650 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Support Intel uncore PerfMon discovery mechanism.
+ * Copyright(c) 2021 Intel Corporation.
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "uncore.h"
+#include "uncore_discovery.h"
+
+static struct rb_root discovery_tables = RB_ROOT;
+static int num_discovered_types[UNCORE_ACCESS_MAX];
+
+static bool has_generic_discovery_table(void)
+{
+ struct pci_dev *dev;
+ int dvsec;
+
+ dev = pci_get_device(PCI_VENDOR_ID_INTEL, UNCORE_DISCOVERY_TABLE_DEVICE, NULL);
+ if (!dev)
+ return false;
+
+ /* A discovery table device has the unique capability ID. */
+ dvsec = pci_find_next_ext_capability(dev, 0, UNCORE_EXT_CAP_ID_DISCOVERY);
+ pci_dev_put(dev);
+ if (dvsec)
+ return true;
+
+ return false;
+}
+
+static int logical_die_id;
+
+static int get_device_die_id(struct pci_dev *dev)
+{
+ int node = pcibus_to_node(dev->bus);
+
+ /*
+ * If the NUMA info is not available, assume that the logical die id is
+ * continuous in the order in which the discovery table devices are
+ * detected.
+ */
+ if (node < 0)
+ return logical_die_id++;
+
+ return uncore_device_to_die(dev);
+}
+
+#define __node_2_type(cur) \
+ rb_entry((cur), struct intel_uncore_discovery_type, node)
+
+static inline int __type_cmp(const void *key, const struct rb_node *b)
+{
+ struct intel_uncore_discovery_type *type_b = __node_2_type(b);
+ const u16 *type_id = key;
+
+ if (type_b->type > *type_id)
+ return -1;
+ else if (type_b->type < *type_id)
+ return 1;
+
+ return 0;
+}
+
+static inline struct intel_uncore_discovery_type *
+search_uncore_discovery_type(u16 type_id)
+{
+ struct rb_node *node = rb_find(&type_id, &discovery_tables, __type_cmp);
+
+ return (node) ? __node_2_type(node) : NULL;
+}
+
+static inline bool __type_less(struct rb_node *a, const struct rb_node *b)
+{
+ return (__node_2_type(a)->type < __node_2_type(b)->type);
+}
+
+static struct intel_uncore_discovery_type *
+add_uncore_discovery_type(struct uncore_unit_discovery *unit)
+{
+ struct intel_uncore_discovery_type *type;
+
+ if (unit->access_type >= UNCORE_ACCESS_MAX) {
+ pr_warn("Unsupported access type %d\n", unit->access_type);
+ return NULL;
+ }
+
+ type = kzalloc(sizeof(struct intel_uncore_discovery_type), GFP_KERNEL);
+ if (!type)
+ return NULL;
+
+ type->box_ctrl_die = kcalloc(__uncore_max_dies, sizeof(u64), GFP_KERNEL);
+ if (!type->box_ctrl_die)
+ goto free_type;
+
+ type->access_type = unit->access_type;
+ num_discovered_types[type->access_type]++;
+ type->type = unit->box_type;
+
+ rb_add(&type->node, &discovery_tables, __type_less);
+
+ return type;
+
+free_type:
+ kfree(type);
+
+ return NULL;
+
+}
+
+static struct intel_uncore_discovery_type *
+get_uncore_discovery_type(struct uncore_unit_discovery *unit)
+{
+ struct intel_uncore_discovery_type *type;
+
+ type = search_uncore_discovery_type(unit->box_type);
+ if (type)
+ return type;
+
+ return add_uncore_discovery_type(unit);
+}
+
+static void
+uncore_insert_box_info(struct uncore_unit_discovery *unit,
+ int die, bool parsed)
+{
+ struct intel_uncore_discovery_type *type;
+ unsigned int *box_offset, *ids;
+ int i;
+
+ if (!unit->ctl || !unit->ctl_offset || !unit->ctr_offset) {
+ pr_info("Invalid address is detected for uncore type %d box %d, "
+ "Disable the uncore unit.\n",
+ unit->box_type, unit->box_id);
+ return;
+ }
+
+ if (parsed) {
+ type = search_uncore_discovery_type(unit->box_type);
+ if (!type) {
+ pr_info("A spurious uncore type %d is detected, "
+ "Disable the uncore type.\n",
+ unit->box_type);
+ return;
+ }
+ /* Store the first box of each die */
+ if (!type->box_ctrl_die[die])
+ type->box_ctrl_die[die] = unit->ctl;
+ return;
+ }
+
+ type = get_uncore_discovery_type(unit);
+ if (!type)
+ return;
+
+ box_offset = kcalloc(type->num_boxes + 1, sizeof(unsigned int), GFP_KERNEL);
+ if (!box_offset)
+ return;
+
+ ids = kcalloc(type->num_boxes + 1, sizeof(unsigned int), GFP_KERNEL);
+ if (!ids)
+ goto free_box_offset;
+
+ /* Store generic information for the first box */
+ if (!type->num_boxes) {
+ type->box_ctrl = unit->ctl;
+ type->box_ctrl_die[die] = unit->ctl;
+ type->num_counters = unit->num_regs;
+ type->counter_width = unit->bit_width;
+ type->ctl_offset = unit->ctl_offset;
+ type->ctr_offset = unit->ctr_offset;
+ *ids = unit->box_id;
+ goto end;
+ }
+
+ for (i = 0; i < type->num_boxes; i++) {
+ ids[i] = type->ids[i];
+ box_offset[i] = type->box_offset[i];
+
+ if (unit->box_id == ids[i]) {
+ pr_info("Duplicate uncore type %d box ID %d is detected, "
+ "Drop the duplicate uncore unit.\n",
+ unit->box_type, unit->box_id);
+ goto free_ids;
+ }
+ }
+ ids[i] = unit->box_id;
+ box_offset[i] = unit->ctl - type->box_ctrl;
+ kfree(type->ids);
+ kfree(type->box_offset);
+end:
+ type->ids = ids;
+ type->box_offset = box_offset;
+ type->num_boxes++;
+ return;
+
+free_ids:
+ kfree(ids);
+
+free_box_offset:
+ kfree(box_offset);
+
+}
+
+static bool
+uncore_ignore_unit(struct uncore_unit_discovery *unit, int *ignore)
+{
+ int i;
+
+ if (!ignore)
+ return false;
+
+ for (i = 0; ignore[i] != UNCORE_IGNORE_END ; i++) {
+ if (unit->box_type == ignore[i])
+ return true;
+ }
+
+ return false;
+}
+
+static int parse_discovery_table(struct pci_dev *dev, int die,
+ u32 bar_offset, bool *parsed,
+ int *ignore)
+{
+ struct uncore_global_discovery global;
+ struct uncore_unit_discovery unit;
+ void __iomem *io_addr;
+ resource_size_t addr;
+ unsigned long size;
+ u32 val;
+ int i;
+
+ pci_read_config_dword(dev, bar_offset, &val);
+
+ if (val & ~PCI_BASE_ADDRESS_MEM_MASK & ~PCI_BASE_ADDRESS_MEM_TYPE_64)
+ return -EINVAL;
+
+ addr = (resource_size_t)(val & PCI_BASE_ADDRESS_MEM_MASK);
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ if ((val & PCI_BASE_ADDRESS_MEM_TYPE_MASK) == PCI_BASE_ADDRESS_MEM_TYPE_64) {
+ u32 val2;
+
+ pci_read_config_dword(dev, bar_offset + 4, &val2);
+ addr |= ((resource_size_t)val2) << 32;
+ }
+#endif
+ size = UNCORE_DISCOVERY_GLOBAL_MAP_SIZE;
+ io_addr = ioremap(addr, size);
+ if (!io_addr)
+ return -ENOMEM;
+
+ /* Read Global Discovery State */
+ memcpy_fromio(&global, io_addr, sizeof(struct uncore_global_discovery));
+ if (uncore_discovery_invalid_unit(global)) {
+ pr_info("Invalid Global Discovery State: 0x%llx 0x%llx 0x%llx\n",
+ global.table1, global.ctl, global.table3);
+ iounmap(io_addr);
+ return -EINVAL;
+ }
+ iounmap(io_addr);
+
+ size = (1 + global.max_units) * global.stride * 8;
+ io_addr = ioremap(addr, size);
+ if (!io_addr)
+ return -ENOMEM;
+
+ /* Parsing Unit Discovery State */
+ for (i = 0; i < global.max_units; i++) {
+ memcpy_fromio(&unit, io_addr + (i + 1) * (global.stride * 8),
+ sizeof(struct uncore_unit_discovery));
+
+ if (uncore_discovery_invalid_unit(unit))
+ continue;
+
+ if (unit.access_type >= UNCORE_ACCESS_MAX)
+ continue;
+
+ if (uncore_ignore_unit(&unit, ignore))
+ continue;
+
+ uncore_insert_box_info(&unit, die, *parsed);
+ }
+
+ *parsed = true;
+ iounmap(io_addr);
+ return 0;
+}
+
+bool intel_uncore_has_discovery_tables(int *ignore)
+{
+ u32 device, val, entry_id, bar_offset;
+ int die, dvsec = 0, ret = true;
+ struct pci_dev *dev = NULL;
+ bool parsed = false;
+
+ if (has_generic_discovery_table())
+ device = UNCORE_DISCOVERY_TABLE_DEVICE;
+ else
+ device = PCI_ANY_ID;
+
+ /*
+ * Start a new search and iterates through the list of
+ * the discovery table devices.
+ */
+ while ((dev = pci_get_device(PCI_VENDOR_ID_INTEL, device, dev)) != NULL) {
+ while ((dvsec = pci_find_next_ext_capability(dev, dvsec, UNCORE_EXT_CAP_ID_DISCOVERY))) {
+ pci_read_config_dword(dev, dvsec + UNCORE_DISCOVERY_DVSEC_OFFSET, &val);
+ entry_id = val & UNCORE_DISCOVERY_DVSEC_ID_MASK;
+ if (entry_id != UNCORE_DISCOVERY_DVSEC_ID_PMON)
+ continue;
+
+ pci_read_config_dword(dev, dvsec + UNCORE_DISCOVERY_DVSEC2_OFFSET, &val);
+
+ if (val & ~UNCORE_DISCOVERY_DVSEC2_BIR_MASK) {
+ ret = false;
+ goto err;
+ }
+ bar_offset = UNCORE_DISCOVERY_BIR_BASE +
+ (val & UNCORE_DISCOVERY_DVSEC2_BIR_MASK) * UNCORE_DISCOVERY_BIR_STEP;
+
+ die = get_device_die_id(dev);
+ if (die < 0)
+ continue;
+
+ parse_discovery_table(dev, die, bar_offset, &parsed, ignore);
+ }
+ }
+
+ /* None of the discovery tables are available */
+ if (!parsed)
+ ret = false;
+err:
+ pci_dev_put(dev);
+
+ return ret;
+}
+
+void intel_uncore_clear_discovery_tables(void)
+{
+ struct intel_uncore_discovery_type *type, *next;
+
+ rbtree_postorder_for_each_entry_safe(type, next, &discovery_tables, node) {
+ kfree(type->box_ctrl_die);
+ kfree(type);
+ }
+}
+
+DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
+DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
+DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
+DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
+DEFINE_UNCORE_FORMAT_ATTR(thresh, thresh, "config:24-31");
+
+static struct attribute *generic_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh.attr,
+ NULL,
+};
+
+static const struct attribute_group generic_uncore_format_group = {
+ .name = "format",
+ .attrs = generic_uncore_formats_attr,
+};
+
+void intel_generic_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+ wrmsrl(uncore_msr_box_ctl(box), GENERIC_PMON_BOX_CTL_INT);
+}
+
+void intel_generic_uncore_msr_disable_box(struct intel_uncore_box *box)
+{
+ wrmsrl(uncore_msr_box_ctl(box), GENERIC_PMON_BOX_CTL_FRZ);
+}
+
+void intel_generic_uncore_msr_enable_box(struct intel_uncore_box *box)
+{
+ wrmsrl(uncore_msr_box_ctl(box), 0);
+}
+
+static void intel_generic_uncore_msr_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ wrmsrl(hwc->config_base, hwc->config);
+}
+
+static void intel_generic_uncore_msr_disable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ wrmsrl(hwc->config_base, 0);
+}
+
+static struct intel_uncore_ops generic_uncore_msr_ops = {
+ .init_box = intel_generic_uncore_msr_init_box,
+ .disable_box = intel_generic_uncore_msr_disable_box,
+ .enable_box = intel_generic_uncore_msr_enable_box,
+ .disable_event = intel_generic_uncore_msr_disable_event,
+ .enable_event = intel_generic_uncore_msr_enable_event,
+ .read_counter = uncore_msr_read_counter,
+};
+
+void intel_generic_uncore_pci_init_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ int box_ctl = uncore_pci_box_ctl(box);
+
+ __set_bit(UNCORE_BOX_FLAG_CTL_OFFS8, &box->flags);
+ pci_write_config_dword(pdev, box_ctl, GENERIC_PMON_BOX_CTL_INT);
+}
+
+void intel_generic_uncore_pci_disable_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ int box_ctl = uncore_pci_box_ctl(box);
+
+ pci_write_config_dword(pdev, box_ctl, GENERIC_PMON_BOX_CTL_FRZ);
+}
+
+void intel_generic_uncore_pci_enable_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ int box_ctl = uncore_pci_box_ctl(box);
+
+ pci_write_config_dword(pdev, box_ctl, 0);
+}
+
+static void intel_generic_uncore_pci_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+
+ pci_write_config_dword(pdev, hwc->config_base, hwc->config);
+}
+
+void intel_generic_uncore_pci_disable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+
+ pci_write_config_dword(pdev, hwc->config_base, 0);
+}
+
+u64 intel_generic_uncore_pci_read_counter(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+ u64 count = 0;
+
+ pci_read_config_dword(pdev, hwc->event_base, (u32 *)&count);
+ pci_read_config_dword(pdev, hwc->event_base + 4, (u32 *)&count + 1);
+
+ return count;
+}
+
+static struct intel_uncore_ops generic_uncore_pci_ops = {
+ .init_box = intel_generic_uncore_pci_init_box,
+ .disable_box = intel_generic_uncore_pci_disable_box,
+ .enable_box = intel_generic_uncore_pci_enable_box,
+ .disable_event = intel_generic_uncore_pci_disable_event,
+ .enable_event = intel_generic_uncore_pci_enable_event,
+ .read_counter = intel_generic_uncore_pci_read_counter,
+};
+
+#define UNCORE_GENERIC_MMIO_SIZE 0x4000
+
+static u64 generic_uncore_mmio_box_ctl(struct intel_uncore_box *box)
+{
+ struct intel_uncore_type *type = box->pmu->type;
+
+ if (!type->box_ctls || !type->box_ctls[box->dieid] || !type->mmio_offsets)
+ return 0;
+
+ return type->box_ctls[box->dieid] + type->mmio_offsets[box->pmu->pmu_idx];
+}
+
+void intel_generic_uncore_mmio_init_box(struct intel_uncore_box *box)
+{
+ u64 box_ctl = generic_uncore_mmio_box_ctl(box);
+ struct intel_uncore_type *type = box->pmu->type;
+ resource_size_t addr;
+
+ if (!box_ctl) {
+ pr_warn("Uncore type %d box %d: Invalid box control address.\n",
+ type->type_id, type->box_ids[box->pmu->pmu_idx]);
+ return;
+ }
+
+ addr = box_ctl;
+ box->io_addr = ioremap(addr, UNCORE_GENERIC_MMIO_SIZE);
+ if (!box->io_addr) {
+ pr_warn("Uncore type %d box %d: ioremap error for 0x%llx.\n",
+ type->type_id, type->box_ids[box->pmu->pmu_idx],
+ (unsigned long long)addr);
+ return;
+ }
+
+ writel(GENERIC_PMON_BOX_CTL_INT, box->io_addr);
+}
+
+void intel_generic_uncore_mmio_disable_box(struct intel_uncore_box *box)
+{
+ if (!box->io_addr)
+ return;
+
+ writel(GENERIC_PMON_BOX_CTL_FRZ, box->io_addr);
+}
+
+void intel_generic_uncore_mmio_enable_box(struct intel_uncore_box *box)
+{
+ if (!box->io_addr)
+ return;
+
+ writel(0, box->io_addr);
+}
+
+void intel_generic_uncore_mmio_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (!box->io_addr)
+ return;
+
+ writel(hwc->config, box->io_addr + hwc->config_base);
+}
+
+void intel_generic_uncore_mmio_disable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (!box->io_addr)
+ return;
+
+ writel(0, box->io_addr + hwc->config_base);
+}
+
+static struct intel_uncore_ops generic_uncore_mmio_ops = {
+ .init_box = intel_generic_uncore_mmio_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .disable_box = intel_generic_uncore_mmio_disable_box,
+ .enable_box = intel_generic_uncore_mmio_enable_box,
+ .disable_event = intel_generic_uncore_mmio_disable_event,
+ .enable_event = intel_generic_uncore_mmio_enable_event,
+ .read_counter = uncore_mmio_read_counter,
+};
+
+static bool uncore_update_uncore_type(enum uncore_access_type type_id,
+ struct intel_uncore_type *uncore,
+ struct intel_uncore_discovery_type *type)
+{
+ uncore->type_id = type->type;
+ uncore->num_boxes = type->num_boxes;
+ uncore->num_counters = type->num_counters;
+ uncore->perf_ctr_bits = type->counter_width;
+ uncore->box_ids = type->ids;
+
+ switch (type_id) {
+ case UNCORE_ACCESS_MSR:
+ uncore->ops = &generic_uncore_msr_ops;
+ uncore->perf_ctr = (unsigned int)type->box_ctrl + type->ctr_offset;
+ uncore->event_ctl = (unsigned int)type->box_ctrl + type->ctl_offset;
+ uncore->box_ctl = (unsigned int)type->box_ctrl;
+ uncore->msr_offsets = type->box_offset;
+ break;
+ case UNCORE_ACCESS_PCI:
+ uncore->ops = &generic_uncore_pci_ops;
+ uncore->perf_ctr = (unsigned int)UNCORE_DISCOVERY_PCI_BOX_CTRL(type->box_ctrl) + type->ctr_offset;
+ uncore->event_ctl = (unsigned int)UNCORE_DISCOVERY_PCI_BOX_CTRL(type->box_ctrl) + type->ctl_offset;
+ uncore->box_ctl = (unsigned int)UNCORE_DISCOVERY_PCI_BOX_CTRL(type->box_ctrl);
+ uncore->box_ctls = type->box_ctrl_die;
+ uncore->pci_offsets = type->box_offset;
+ break;
+ case UNCORE_ACCESS_MMIO:
+ uncore->ops = &generic_uncore_mmio_ops;
+ uncore->perf_ctr = (unsigned int)type->ctr_offset;
+ uncore->event_ctl = (unsigned int)type->ctl_offset;
+ uncore->box_ctl = (unsigned int)type->box_ctrl;
+ uncore->box_ctls = type->box_ctrl_die;
+ uncore->mmio_offsets = type->box_offset;
+ uncore->mmio_map_size = UNCORE_GENERIC_MMIO_SIZE;
+ break;
+ default:
+ return false;
+ }
+
+ return true;
+}
+
+struct intel_uncore_type **
+intel_uncore_generic_init_uncores(enum uncore_access_type type_id, int num_extra)
+{
+ struct intel_uncore_discovery_type *type;
+ struct intel_uncore_type **uncores;
+ struct intel_uncore_type *uncore;
+ struct rb_node *node;
+ int i = 0;
+
+ uncores = kcalloc(num_discovered_types[type_id] + num_extra + 1,
+ sizeof(struct intel_uncore_type *), GFP_KERNEL);
+ if (!uncores)
+ return empty_uncore;
+
+ for (node = rb_first(&discovery_tables); node; node = rb_next(node)) {
+ type = rb_entry(node, struct intel_uncore_discovery_type, node);
+ if (type->access_type != type_id)
+ continue;
+
+ uncore = kzalloc(sizeof(struct intel_uncore_type), GFP_KERNEL);
+ if (!uncore)
+ break;
+
+ uncore->event_mask = GENERIC_PMON_RAW_EVENT_MASK;
+ uncore->format_group = &generic_uncore_format_group;
+
+ if (!uncore_update_uncore_type(type_id, uncore, type)) {
+ kfree(uncore);
+ continue;
+ }
+ uncores[i++] = uncore;
+ }
+
+ return uncores;
+}
+
+void intel_uncore_generic_uncore_cpu_init(void)
+{
+ uncore_msr_uncores = intel_uncore_generic_init_uncores(UNCORE_ACCESS_MSR, 0);
+}
+
+int intel_uncore_generic_uncore_pci_init(void)
+{
+ uncore_pci_uncores = intel_uncore_generic_init_uncores(UNCORE_ACCESS_PCI, 0);
+
+ return 0;
+}
+
+void intel_uncore_generic_uncore_mmio_init(void)
+{
+ uncore_mmio_uncores = intel_uncore_generic_init_uncores(UNCORE_ACCESS_MMIO, 0);
+}
diff --git a/arch/x86/events/intel/uncore_discovery.h b/arch/x86/events/intel/uncore_discovery.h
new file mode 100644
index 000000000000..6ee80ad3423e
--- /dev/null
+++ b/arch/x86/events/intel/uncore_discovery.h
@@ -0,0 +1,158 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* Generic device ID of a discovery table device */
+#define UNCORE_DISCOVERY_TABLE_DEVICE 0x09a7
+/* Capability ID for a discovery table device */
+#define UNCORE_EXT_CAP_ID_DISCOVERY 0x23
+/* First DVSEC offset */
+#define UNCORE_DISCOVERY_DVSEC_OFFSET 0x8
+/* Mask of the supported discovery entry type */
+#define UNCORE_DISCOVERY_DVSEC_ID_MASK 0xffff
+/* PMON discovery entry type ID */
+#define UNCORE_DISCOVERY_DVSEC_ID_PMON 0x1
+/* Second DVSEC offset */
+#define UNCORE_DISCOVERY_DVSEC2_OFFSET 0xc
+/* Mask of the discovery table BAR offset */
+#define UNCORE_DISCOVERY_DVSEC2_BIR_MASK 0x7
+/* Discovery table BAR base offset */
+#define UNCORE_DISCOVERY_BIR_BASE 0x10
+/* Discovery table BAR step */
+#define UNCORE_DISCOVERY_BIR_STEP 0x4
+/* Global discovery table size */
+#define UNCORE_DISCOVERY_GLOBAL_MAP_SIZE 0x20
+
+#define UNCORE_DISCOVERY_PCI_DOMAIN_OFFSET 28
+#define UNCORE_DISCOVERY_PCI_DOMAIN(data) \
+ ((data >> UNCORE_DISCOVERY_PCI_DOMAIN_OFFSET) & 0x7)
+#define UNCORE_DISCOVERY_PCI_BUS_OFFSET 20
+#define UNCORE_DISCOVERY_PCI_BUS(data) \
+ ((data >> UNCORE_DISCOVERY_PCI_BUS_OFFSET) & 0xff)
+#define UNCORE_DISCOVERY_PCI_DEVFN_OFFSET 12
+#define UNCORE_DISCOVERY_PCI_DEVFN(data) \
+ ((data >> UNCORE_DISCOVERY_PCI_DEVFN_OFFSET) & 0xff)
+#define UNCORE_DISCOVERY_PCI_BOX_CTRL(data) (data & 0xfff)
+
+
+#define uncore_discovery_invalid_unit(unit) \
+ (!unit.table1 || !unit.ctl || \
+ unit.table1 == -1ULL || unit.ctl == -1ULL || \
+ unit.table3 == -1ULL)
+
+#define GENERIC_PMON_CTL_EV_SEL_MASK 0x000000ff
+#define GENERIC_PMON_CTL_UMASK_MASK 0x0000ff00
+#define GENERIC_PMON_CTL_EDGE_DET (1 << 18)
+#define GENERIC_PMON_CTL_INVERT (1 << 23)
+#define GENERIC_PMON_CTL_TRESH_MASK 0xff000000
+#define GENERIC_PMON_RAW_EVENT_MASK (GENERIC_PMON_CTL_EV_SEL_MASK | \
+ GENERIC_PMON_CTL_UMASK_MASK | \
+ GENERIC_PMON_CTL_EDGE_DET | \
+ GENERIC_PMON_CTL_INVERT | \
+ GENERIC_PMON_CTL_TRESH_MASK)
+
+#define GENERIC_PMON_BOX_CTL_FRZ (1 << 0)
+#define GENERIC_PMON_BOX_CTL_RST_CTRL (1 << 8)
+#define GENERIC_PMON_BOX_CTL_RST_CTRS (1 << 9)
+#define GENERIC_PMON_BOX_CTL_INT (GENERIC_PMON_BOX_CTL_RST_CTRL | \
+ GENERIC_PMON_BOX_CTL_RST_CTRS)
+
+enum uncore_access_type {
+ UNCORE_ACCESS_MSR = 0,
+ UNCORE_ACCESS_MMIO,
+ UNCORE_ACCESS_PCI,
+
+ UNCORE_ACCESS_MAX,
+};
+
+struct uncore_global_discovery {
+ union {
+ u64 table1;
+ struct {
+ u64 type : 8,
+ stride : 8,
+ max_units : 10,
+ __reserved_1 : 36,
+ access_type : 2;
+ };
+ };
+
+ u64 ctl; /* Global Control Address */
+
+ union {
+ u64 table3;
+ struct {
+ u64 status_offset : 8,
+ num_status : 16,
+ __reserved_2 : 40;
+ };
+ };
+};
+
+struct uncore_unit_discovery {
+ union {
+ u64 table1;
+ struct {
+ u64 num_regs : 8,
+ ctl_offset : 8,
+ bit_width : 8,
+ ctr_offset : 8,
+ status_offset : 8,
+ __reserved_1 : 22,
+ access_type : 2;
+ };
+ };
+
+ u64 ctl; /* Unit Control Address */
+
+ union {
+ u64 table3;
+ struct {
+ u64 box_type : 16,
+ box_id : 16,
+ __reserved_2 : 32;
+ };
+ };
+};
+
+struct intel_uncore_discovery_type {
+ struct rb_node node;
+ enum uncore_access_type access_type;
+ u64 box_ctrl; /* Unit ctrl addr of the first box */
+ u64 *box_ctrl_die; /* Unit ctrl addr of the first box of each die */
+ u16 type; /* Type ID of the uncore block */
+ u8 num_counters;
+ u8 counter_width;
+ u8 ctl_offset; /* Counter Control 0 offset */
+ u8 ctr_offset; /* Counter 0 offset */
+ u16 num_boxes; /* number of boxes for the uncore block */
+ unsigned int *ids; /* Box IDs */
+ unsigned int *box_offset; /* Box offset */
+};
+
+bool intel_uncore_has_discovery_tables(int *ignore);
+void intel_uncore_clear_discovery_tables(void);
+void intel_uncore_generic_uncore_cpu_init(void);
+int intel_uncore_generic_uncore_pci_init(void);
+void intel_uncore_generic_uncore_mmio_init(void);
+
+void intel_generic_uncore_msr_init_box(struct intel_uncore_box *box);
+void intel_generic_uncore_msr_disable_box(struct intel_uncore_box *box);
+void intel_generic_uncore_msr_enable_box(struct intel_uncore_box *box);
+
+void intel_generic_uncore_mmio_init_box(struct intel_uncore_box *box);
+void intel_generic_uncore_mmio_disable_box(struct intel_uncore_box *box);
+void intel_generic_uncore_mmio_enable_box(struct intel_uncore_box *box);
+void intel_generic_uncore_mmio_disable_event(struct intel_uncore_box *box,
+ struct perf_event *event);
+void intel_generic_uncore_mmio_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event);
+
+void intel_generic_uncore_pci_init_box(struct intel_uncore_box *box);
+void intel_generic_uncore_pci_disable_box(struct intel_uncore_box *box);
+void intel_generic_uncore_pci_enable_box(struct intel_uncore_box *box);
+void intel_generic_uncore_pci_disable_event(struct intel_uncore_box *box,
+ struct perf_event *event);
+u64 intel_generic_uncore_pci_read_counter(struct intel_uncore_box *box,
+ struct perf_event *event);
+
+struct intel_uncore_type **
+intel_uncore_generic_init_uncores(enum uncore_access_type type_id, int num_extra);
diff --git a/arch/x86/events/intel/uncore_nhmex.c b/arch/x86/events/intel/uncore_nhmex.c
new file mode 100644
index 000000000000..173e2674be6e
--- /dev/null
+++ b/arch/x86/events/intel/uncore_nhmex.c
@@ -0,0 +1,1228 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Nehalem-EX/Westmere-EX uncore support */
+#include "uncore.h"
+
+/* NHM-EX event control */
+#define NHMEX_PMON_CTL_EV_SEL_MASK 0x000000ff
+#define NHMEX_PMON_CTL_UMASK_MASK 0x0000ff00
+#define NHMEX_PMON_CTL_EN_BIT0 (1 << 0)
+#define NHMEX_PMON_CTL_EDGE_DET (1 << 18)
+#define NHMEX_PMON_CTL_PMI_EN (1 << 20)
+#define NHMEX_PMON_CTL_EN_BIT22 (1 << 22)
+#define NHMEX_PMON_CTL_INVERT (1 << 23)
+#define NHMEX_PMON_CTL_TRESH_MASK 0xff000000
+#define NHMEX_PMON_RAW_EVENT_MASK (NHMEX_PMON_CTL_EV_SEL_MASK | \
+ NHMEX_PMON_CTL_UMASK_MASK | \
+ NHMEX_PMON_CTL_EDGE_DET | \
+ NHMEX_PMON_CTL_INVERT | \
+ NHMEX_PMON_CTL_TRESH_MASK)
+
+/* NHM-EX Ubox */
+#define NHMEX_U_MSR_PMON_GLOBAL_CTL 0xc00
+#define NHMEX_U_MSR_PMON_CTR 0xc11
+#define NHMEX_U_MSR_PMON_EV_SEL 0xc10
+
+#define NHMEX_U_PMON_GLOBAL_EN (1 << 0)
+#define NHMEX_U_PMON_GLOBAL_PMI_CORE_SEL 0x0000001e
+#define NHMEX_U_PMON_GLOBAL_EN_ALL (1 << 28)
+#define NHMEX_U_PMON_GLOBAL_RST_ALL (1 << 29)
+#define NHMEX_U_PMON_GLOBAL_FRZ_ALL (1 << 31)
+
+#define NHMEX_U_PMON_RAW_EVENT_MASK \
+ (NHMEX_PMON_CTL_EV_SEL_MASK | \
+ NHMEX_PMON_CTL_EDGE_DET)
+
+/* NHM-EX Cbox */
+#define NHMEX_C0_MSR_PMON_GLOBAL_CTL 0xd00
+#define NHMEX_C0_MSR_PMON_CTR0 0xd11
+#define NHMEX_C0_MSR_PMON_EV_SEL0 0xd10
+#define NHMEX_C_MSR_OFFSET 0x20
+
+/* NHM-EX Bbox */
+#define NHMEX_B0_MSR_PMON_GLOBAL_CTL 0xc20
+#define NHMEX_B0_MSR_PMON_CTR0 0xc31
+#define NHMEX_B0_MSR_PMON_CTL0 0xc30
+#define NHMEX_B_MSR_OFFSET 0x40
+#define NHMEX_B0_MSR_MATCH 0xe45
+#define NHMEX_B0_MSR_MASK 0xe46
+#define NHMEX_B1_MSR_MATCH 0xe4d
+#define NHMEX_B1_MSR_MASK 0xe4e
+
+#define NHMEX_B_PMON_CTL_EN (1 << 0)
+#define NHMEX_B_PMON_CTL_EV_SEL_SHIFT 1
+#define NHMEX_B_PMON_CTL_EV_SEL_MASK \
+ (0x1f << NHMEX_B_PMON_CTL_EV_SEL_SHIFT)
+#define NHMEX_B_PMON_CTR_SHIFT 6
+#define NHMEX_B_PMON_CTR_MASK \
+ (0x3 << NHMEX_B_PMON_CTR_SHIFT)
+#define NHMEX_B_PMON_RAW_EVENT_MASK \
+ (NHMEX_B_PMON_CTL_EV_SEL_MASK | \
+ NHMEX_B_PMON_CTR_MASK)
+
+/* NHM-EX Sbox */
+#define NHMEX_S0_MSR_PMON_GLOBAL_CTL 0xc40
+#define NHMEX_S0_MSR_PMON_CTR0 0xc51
+#define NHMEX_S0_MSR_PMON_CTL0 0xc50
+#define NHMEX_S_MSR_OFFSET 0x80
+#define NHMEX_S0_MSR_MM_CFG 0xe48
+#define NHMEX_S0_MSR_MATCH 0xe49
+#define NHMEX_S0_MSR_MASK 0xe4a
+#define NHMEX_S1_MSR_MM_CFG 0xe58
+#define NHMEX_S1_MSR_MATCH 0xe59
+#define NHMEX_S1_MSR_MASK 0xe5a
+
+#define NHMEX_S_PMON_MM_CFG_EN (0x1ULL << 63)
+#define NHMEX_S_EVENT_TO_R_PROG_EV 0
+
+/* NHM-EX Mbox */
+#define NHMEX_M0_MSR_GLOBAL_CTL 0xca0
+#define NHMEX_M0_MSR_PMU_DSP 0xca5
+#define NHMEX_M0_MSR_PMU_ISS 0xca6
+#define NHMEX_M0_MSR_PMU_MAP 0xca7
+#define NHMEX_M0_MSR_PMU_MSC_THR 0xca8
+#define NHMEX_M0_MSR_PMU_PGT 0xca9
+#define NHMEX_M0_MSR_PMU_PLD 0xcaa
+#define NHMEX_M0_MSR_PMU_ZDP_CTL_FVC 0xcab
+#define NHMEX_M0_MSR_PMU_CTL0 0xcb0
+#define NHMEX_M0_MSR_PMU_CNT0 0xcb1
+#define NHMEX_M_MSR_OFFSET 0x40
+#define NHMEX_M0_MSR_PMU_MM_CFG 0xe54
+#define NHMEX_M1_MSR_PMU_MM_CFG 0xe5c
+
+#define NHMEX_M_PMON_MM_CFG_EN (1ULL << 63)
+#define NHMEX_M_PMON_ADDR_MATCH_MASK 0x3ffffffffULL
+#define NHMEX_M_PMON_ADDR_MASK_MASK 0x7ffffffULL
+#define NHMEX_M_PMON_ADDR_MASK_SHIFT 34
+
+#define NHMEX_M_PMON_CTL_EN (1 << 0)
+#define NHMEX_M_PMON_CTL_PMI_EN (1 << 1)
+#define NHMEX_M_PMON_CTL_COUNT_MODE_SHIFT 2
+#define NHMEX_M_PMON_CTL_COUNT_MODE_MASK \
+ (0x3 << NHMEX_M_PMON_CTL_COUNT_MODE_SHIFT)
+#define NHMEX_M_PMON_CTL_STORAGE_MODE_SHIFT 4
+#define NHMEX_M_PMON_CTL_STORAGE_MODE_MASK \
+ (0x3 << NHMEX_M_PMON_CTL_STORAGE_MODE_SHIFT)
+#define NHMEX_M_PMON_CTL_WRAP_MODE (1 << 6)
+#define NHMEX_M_PMON_CTL_FLAG_MODE (1 << 7)
+#define NHMEX_M_PMON_CTL_INC_SEL_SHIFT 9
+#define NHMEX_M_PMON_CTL_INC_SEL_MASK \
+ (0x1f << NHMEX_M_PMON_CTL_INC_SEL_SHIFT)
+#define NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT 19
+#define NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK \
+ (0x7 << NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT)
+#define NHMEX_M_PMON_RAW_EVENT_MASK \
+ (NHMEX_M_PMON_CTL_COUNT_MODE_MASK | \
+ NHMEX_M_PMON_CTL_STORAGE_MODE_MASK | \
+ NHMEX_M_PMON_CTL_WRAP_MODE | \
+ NHMEX_M_PMON_CTL_FLAG_MODE | \
+ NHMEX_M_PMON_CTL_INC_SEL_MASK | \
+ NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK)
+
+#define NHMEX_M_PMON_ZDP_CTL_FVC_MASK (((1 << 11) - 1) | (1 << 23))
+#define NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n) (0x7ULL << (11 + 3 * (n)))
+
+#define WSMEX_M_PMON_ZDP_CTL_FVC_MASK (((1 << 12) - 1) | (1 << 24))
+#define WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(n) (0x7ULL << (12 + 3 * (n)))
+
+/*
+ * use the 9~13 bits to select event If the 7th bit is not set,
+ * otherwise use the 19~21 bits to select event.
+ */
+#define MBOX_INC_SEL(x) ((x) << NHMEX_M_PMON_CTL_INC_SEL_SHIFT)
+#define MBOX_SET_FLAG_SEL(x) (((x) << NHMEX_M_PMON_CTL_SET_FLAG_SEL_SHIFT) | \
+ NHMEX_M_PMON_CTL_FLAG_MODE)
+#define MBOX_INC_SEL_MASK (NHMEX_M_PMON_CTL_INC_SEL_MASK | \
+ NHMEX_M_PMON_CTL_FLAG_MODE)
+#define MBOX_SET_FLAG_SEL_MASK (NHMEX_M_PMON_CTL_SET_FLAG_SEL_MASK | \
+ NHMEX_M_PMON_CTL_FLAG_MODE)
+#define MBOX_INC_SEL_EXTAR_REG(c, r) \
+ EVENT_EXTRA_REG(MBOX_INC_SEL(c), NHMEX_M0_MSR_PMU_##r, \
+ MBOX_INC_SEL_MASK, (u64)-1, NHMEX_M_##r)
+#define MBOX_SET_FLAG_SEL_EXTRA_REG(c, r) \
+ EVENT_EXTRA_REG(MBOX_SET_FLAG_SEL(c), NHMEX_M0_MSR_PMU_##r, \
+ MBOX_SET_FLAG_SEL_MASK, \
+ (u64)-1, NHMEX_M_##r)
+
+/* NHM-EX Rbox */
+#define NHMEX_R_MSR_GLOBAL_CTL 0xe00
+#define NHMEX_R_MSR_PMON_CTL0 0xe10
+#define NHMEX_R_MSR_PMON_CNT0 0xe11
+#define NHMEX_R_MSR_OFFSET 0x20
+
+#define NHMEX_R_MSR_PORTN_QLX_CFG(n) \
+ ((n) < 4 ? (0xe0c + (n)) : (0xe2c + (n) - 4))
+#define NHMEX_R_MSR_PORTN_IPERF_CFG0(n) (0xe04 + (n))
+#define NHMEX_R_MSR_PORTN_IPERF_CFG1(n) (0xe24 + (n))
+#define NHMEX_R_MSR_PORTN_XBR_OFFSET(n) \
+ (((n) < 4 ? 0 : 0x10) + (n) * 4)
+#define NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) \
+ (0xe60 + NHMEX_R_MSR_PORTN_XBR_OFFSET(n))
+#define NHMEX_R_MSR_PORTN_XBR_SET1_MATCH(n) \
+ (NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) + 1)
+#define NHMEX_R_MSR_PORTN_XBR_SET1_MASK(n) \
+ (NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(n) + 2)
+#define NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) \
+ (0xe70 + NHMEX_R_MSR_PORTN_XBR_OFFSET(n))
+#define NHMEX_R_MSR_PORTN_XBR_SET2_MATCH(n) \
+ (NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) + 1)
+#define NHMEX_R_MSR_PORTN_XBR_SET2_MASK(n) \
+ (NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(n) + 2)
+
+#define NHMEX_R_PMON_CTL_EN (1 << 0)
+#define NHMEX_R_PMON_CTL_EV_SEL_SHIFT 1
+#define NHMEX_R_PMON_CTL_EV_SEL_MASK \
+ (0x1f << NHMEX_R_PMON_CTL_EV_SEL_SHIFT)
+#define NHMEX_R_PMON_CTL_PMI_EN (1 << 6)
+#define NHMEX_R_PMON_RAW_EVENT_MASK NHMEX_R_PMON_CTL_EV_SEL_MASK
+
+/* NHM-EX Wbox */
+#define NHMEX_W_MSR_GLOBAL_CTL 0xc80
+#define NHMEX_W_MSR_PMON_CNT0 0xc90
+#define NHMEX_W_MSR_PMON_EVT_SEL0 0xc91
+#define NHMEX_W_MSR_PMON_FIXED_CTR 0x394
+#define NHMEX_W_MSR_PMON_FIXED_CTL 0x395
+
+#define NHMEX_W_PMON_GLOBAL_FIXED_EN (1ULL << 31)
+
+#define __BITS_VALUE(x, i, n) ((typeof(x))(((x) >> ((i) * (n))) & \
+ ((1ULL << (n)) - 1)))
+
+DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
+DEFINE_UNCORE_FORMAT_ATTR(event5, event, "config:1-5");
+DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
+DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
+DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
+DEFINE_UNCORE_FORMAT_ATTR(thresh8, thresh, "config:24-31");
+DEFINE_UNCORE_FORMAT_ATTR(counter, counter, "config:6-7");
+DEFINE_UNCORE_FORMAT_ATTR(match, match, "config1:0-63");
+DEFINE_UNCORE_FORMAT_ATTR(mask, mask, "config2:0-63");
+
+static void nhmex_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+ wrmsrl(NHMEX_U_MSR_PMON_GLOBAL_CTL, NHMEX_U_PMON_GLOBAL_EN_ALL);
+}
+
+static void nhmex_uncore_msr_exit_box(struct intel_uncore_box *box)
+{
+ wrmsrl(NHMEX_U_MSR_PMON_GLOBAL_CTL, 0);
+}
+
+static void nhmex_uncore_msr_disable_box(struct intel_uncore_box *box)
+{
+ unsigned msr = uncore_msr_box_ctl(box);
+ u64 config;
+
+ if (msr) {
+ rdmsrl(msr, config);
+ config &= ~((1ULL << uncore_num_counters(box)) - 1);
+ /* WBox has a fixed counter */
+ if (uncore_msr_fixed_ctl(box))
+ config &= ~NHMEX_W_PMON_GLOBAL_FIXED_EN;
+ wrmsrl(msr, config);
+ }
+}
+
+static void nhmex_uncore_msr_enable_box(struct intel_uncore_box *box)
+{
+ unsigned msr = uncore_msr_box_ctl(box);
+ u64 config;
+
+ if (msr) {
+ rdmsrl(msr, config);
+ config |= (1ULL << uncore_num_counters(box)) - 1;
+ /* WBox has a fixed counter */
+ if (uncore_msr_fixed_ctl(box))
+ config |= NHMEX_W_PMON_GLOBAL_FIXED_EN;
+ wrmsrl(msr, config);
+ }
+}
+
+static void nhmex_uncore_msr_disable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ wrmsrl(event->hw.config_base, 0);
+}
+
+static void nhmex_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (hwc->idx == UNCORE_PMC_IDX_FIXED)
+ wrmsrl(hwc->config_base, NHMEX_PMON_CTL_EN_BIT0);
+ else if (box->pmu->type->event_mask & NHMEX_PMON_CTL_EN_BIT0)
+ wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT22);
+ else
+ wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT0);
+}
+
+#define NHMEX_UNCORE_OPS_COMMON_INIT() \
+ .init_box = nhmex_uncore_msr_init_box, \
+ .exit_box = nhmex_uncore_msr_exit_box, \
+ .disable_box = nhmex_uncore_msr_disable_box, \
+ .enable_box = nhmex_uncore_msr_enable_box, \
+ .disable_event = nhmex_uncore_msr_disable_event, \
+ .read_counter = uncore_msr_read_counter
+
+static struct intel_uncore_ops nhmex_uncore_ops = {
+ NHMEX_UNCORE_OPS_COMMON_INIT(),
+ .enable_event = nhmex_uncore_msr_enable_event,
+};
+
+static struct attribute *nhmex_uncore_ubox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_edge.attr,
+ NULL,
+};
+
+static const struct attribute_group nhmex_uncore_ubox_format_group = {
+ .name = "format",
+ .attrs = nhmex_uncore_ubox_formats_attr,
+};
+
+static struct intel_uncore_type nhmex_uncore_ubox = {
+ .name = "ubox",
+ .num_counters = 1,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .event_ctl = NHMEX_U_MSR_PMON_EV_SEL,
+ .perf_ctr = NHMEX_U_MSR_PMON_CTR,
+ .event_mask = NHMEX_U_PMON_RAW_EVENT_MASK,
+ .box_ctl = NHMEX_U_MSR_PMON_GLOBAL_CTL,
+ .ops = &nhmex_uncore_ops,
+ .format_group = &nhmex_uncore_ubox_format_group
+};
+
+static struct attribute *nhmex_uncore_cbox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static const struct attribute_group nhmex_uncore_cbox_format_group = {
+ .name = "format",
+ .attrs = nhmex_uncore_cbox_formats_attr,
+};
+
+/* msr offset for each instance of cbox */
+static unsigned nhmex_cbox_msr_offsets[] = {
+ 0x0, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0, 0x240, 0x2c0,
+};
+
+static struct intel_uncore_type nhmex_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 6,
+ .num_boxes = 10,
+ .perf_ctr_bits = 48,
+ .event_ctl = NHMEX_C0_MSR_PMON_EV_SEL0,
+ .perf_ctr = NHMEX_C0_MSR_PMON_CTR0,
+ .event_mask = NHMEX_PMON_RAW_EVENT_MASK,
+ .box_ctl = NHMEX_C0_MSR_PMON_GLOBAL_CTL,
+ .msr_offsets = nhmex_cbox_msr_offsets,
+ .pair_ctr_ctl = 1,
+ .ops = &nhmex_uncore_ops,
+ .format_group = &nhmex_uncore_cbox_format_group
+};
+
+static struct uncore_event_desc nhmex_uncore_wbox_events[] = {
+ INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_type nhmex_uncore_wbox = {
+ .name = "wbox",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .event_ctl = NHMEX_W_MSR_PMON_CNT0,
+ .perf_ctr = NHMEX_W_MSR_PMON_EVT_SEL0,
+ .fixed_ctr = NHMEX_W_MSR_PMON_FIXED_CTR,
+ .fixed_ctl = NHMEX_W_MSR_PMON_FIXED_CTL,
+ .event_mask = NHMEX_PMON_RAW_EVENT_MASK,
+ .box_ctl = NHMEX_W_MSR_GLOBAL_CTL,
+ .pair_ctr_ctl = 1,
+ .event_descs = nhmex_uncore_wbox_events,
+ .ops = &nhmex_uncore_ops,
+ .format_group = &nhmex_uncore_cbox_format_group
+};
+
+static int nhmex_bbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
+ int ctr, ev_sel;
+
+ ctr = (hwc->config & NHMEX_B_PMON_CTR_MASK) >>
+ NHMEX_B_PMON_CTR_SHIFT;
+ ev_sel = (hwc->config & NHMEX_B_PMON_CTL_EV_SEL_MASK) >>
+ NHMEX_B_PMON_CTL_EV_SEL_SHIFT;
+
+ /* events that do not use the match/mask registers */
+ if ((ctr == 0 && ev_sel > 0x3) || (ctr == 1 && ev_sel > 0x6) ||
+ (ctr == 2 && ev_sel != 0x4) || ctr == 3)
+ return 0;
+
+ if (box->pmu->pmu_idx == 0)
+ reg1->reg = NHMEX_B0_MSR_MATCH;
+ else
+ reg1->reg = NHMEX_B1_MSR_MATCH;
+ reg1->idx = 0;
+ reg1->config = event->attr.config1;
+ reg2->config = event->attr.config2;
+ return 0;
+}
+
+static void nhmex_bbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
+
+ if (reg1->idx != EXTRA_REG_NONE) {
+ wrmsrl(reg1->reg, reg1->config);
+ wrmsrl(reg1->reg + 1, reg2->config);
+ }
+ wrmsrl(hwc->config_base, NHMEX_PMON_CTL_EN_BIT0 |
+ (hwc->config & NHMEX_B_PMON_CTL_EV_SEL_MASK));
+}
+
+/*
+ * The Bbox has 4 counters, but each counter monitors different events.
+ * Use bits 6-7 in the event config to select counter.
+ */
+static struct event_constraint nhmex_uncore_bbox_constraints[] = {
+ EVENT_CONSTRAINT(0 , 1, 0xc0),
+ EVENT_CONSTRAINT(0x40, 2, 0xc0),
+ EVENT_CONSTRAINT(0x80, 4, 0xc0),
+ EVENT_CONSTRAINT(0xc0, 8, 0xc0),
+ EVENT_CONSTRAINT_END,
+};
+
+static struct attribute *nhmex_uncore_bbox_formats_attr[] = {
+ &format_attr_event5.attr,
+ &format_attr_counter.attr,
+ &format_attr_match.attr,
+ &format_attr_mask.attr,
+ NULL,
+};
+
+static const struct attribute_group nhmex_uncore_bbox_format_group = {
+ .name = "format",
+ .attrs = nhmex_uncore_bbox_formats_attr,
+};
+
+static struct intel_uncore_ops nhmex_uncore_bbox_ops = {
+ NHMEX_UNCORE_OPS_COMMON_INIT(),
+ .enable_event = nhmex_bbox_msr_enable_event,
+ .hw_config = nhmex_bbox_hw_config,
+ .get_constraint = uncore_get_constraint,
+ .put_constraint = uncore_put_constraint,
+};
+
+static struct intel_uncore_type nhmex_uncore_bbox = {
+ .name = "bbox",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .event_ctl = NHMEX_B0_MSR_PMON_CTL0,
+ .perf_ctr = NHMEX_B0_MSR_PMON_CTR0,
+ .event_mask = NHMEX_B_PMON_RAW_EVENT_MASK,
+ .box_ctl = NHMEX_B0_MSR_PMON_GLOBAL_CTL,
+ .msr_offset = NHMEX_B_MSR_OFFSET,
+ .pair_ctr_ctl = 1,
+ .num_shared_regs = 1,
+ .constraints = nhmex_uncore_bbox_constraints,
+ .ops = &nhmex_uncore_bbox_ops,
+ .format_group = &nhmex_uncore_bbox_format_group
+};
+
+static int nhmex_sbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
+
+ /* only TO_R_PROG_EV event uses the match/mask register */
+ if ((hwc->config & NHMEX_PMON_CTL_EV_SEL_MASK) !=
+ NHMEX_S_EVENT_TO_R_PROG_EV)
+ return 0;
+
+ if (box->pmu->pmu_idx == 0)
+ reg1->reg = NHMEX_S0_MSR_MM_CFG;
+ else
+ reg1->reg = NHMEX_S1_MSR_MM_CFG;
+ reg1->idx = 0;
+ reg1->config = event->attr.config1;
+ reg2->config = event->attr.config2;
+ return 0;
+}
+
+static void nhmex_sbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
+
+ if (reg1->idx != EXTRA_REG_NONE) {
+ wrmsrl(reg1->reg, 0);
+ wrmsrl(reg1->reg + 1, reg1->config);
+ wrmsrl(reg1->reg + 2, reg2->config);
+ wrmsrl(reg1->reg, NHMEX_S_PMON_MM_CFG_EN);
+ }
+ wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT22);
+}
+
+static struct attribute *nhmex_uncore_sbox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_match.attr,
+ &format_attr_mask.attr,
+ NULL,
+};
+
+static const struct attribute_group nhmex_uncore_sbox_format_group = {
+ .name = "format",
+ .attrs = nhmex_uncore_sbox_formats_attr,
+};
+
+static struct intel_uncore_ops nhmex_uncore_sbox_ops = {
+ NHMEX_UNCORE_OPS_COMMON_INIT(),
+ .enable_event = nhmex_sbox_msr_enable_event,
+ .hw_config = nhmex_sbox_hw_config,
+ .get_constraint = uncore_get_constraint,
+ .put_constraint = uncore_put_constraint,
+};
+
+static struct intel_uncore_type nhmex_uncore_sbox = {
+ .name = "sbox",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .event_ctl = NHMEX_S0_MSR_PMON_CTL0,
+ .perf_ctr = NHMEX_S0_MSR_PMON_CTR0,
+ .event_mask = NHMEX_PMON_RAW_EVENT_MASK,
+ .box_ctl = NHMEX_S0_MSR_PMON_GLOBAL_CTL,
+ .msr_offset = NHMEX_S_MSR_OFFSET,
+ .pair_ctr_ctl = 1,
+ .num_shared_regs = 1,
+ .ops = &nhmex_uncore_sbox_ops,
+ .format_group = &nhmex_uncore_sbox_format_group
+};
+
+enum {
+ EXTRA_REG_NHMEX_M_FILTER,
+ EXTRA_REG_NHMEX_M_DSP,
+ EXTRA_REG_NHMEX_M_ISS,
+ EXTRA_REG_NHMEX_M_MAP,
+ EXTRA_REG_NHMEX_M_MSC_THR,
+ EXTRA_REG_NHMEX_M_PGT,
+ EXTRA_REG_NHMEX_M_PLD,
+ EXTRA_REG_NHMEX_M_ZDP_CTL_FVC,
+};
+
+static struct extra_reg nhmex_uncore_mbox_extra_regs[] = {
+ MBOX_INC_SEL_EXTAR_REG(0x0, DSP),
+ MBOX_INC_SEL_EXTAR_REG(0x4, MSC_THR),
+ MBOX_INC_SEL_EXTAR_REG(0x5, MSC_THR),
+ MBOX_INC_SEL_EXTAR_REG(0x9, ISS),
+ /* event 0xa uses two extra registers */
+ MBOX_INC_SEL_EXTAR_REG(0xa, ISS),
+ MBOX_INC_SEL_EXTAR_REG(0xa, PLD),
+ MBOX_INC_SEL_EXTAR_REG(0xb, PLD),
+ /* events 0xd ~ 0x10 use the same extra register */
+ MBOX_INC_SEL_EXTAR_REG(0xd, ZDP_CTL_FVC),
+ MBOX_INC_SEL_EXTAR_REG(0xe, ZDP_CTL_FVC),
+ MBOX_INC_SEL_EXTAR_REG(0xf, ZDP_CTL_FVC),
+ MBOX_INC_SEL_EXTAR_REG(0x10, ZDP_CTL_FVC),
+ MBOX_INC_SEL_EXTAR_REG(0x16, PGT),
+ MBOX_SET_FLAG_SEL_EXTRA_REG(0x0, DSP),
+ MBOX_SET_FLAG_SEL_EXTRA_REG(0x1, ISS),
+ MBOX_SET_FLAG_SEL_EXTRA_REG(0x5, PGT),
+ MBOX_SET_FLAG_SEL_EXTRA_REG(0x6, MAP),
+ EVENT_EXTRA_END
+};
+
+/* Nehalem-EX or Westmere-EX ? */
+static bool uncore_nhmex;
+
+static bool nhmex_mbox_get_shared_reg(struct intel_uncore_box *box, int idx, u64 config)
+{
+ struct intel_uncore_extra_reg *er;
+ unsigned long flags;
+ bool ret = false;
+ u64 mask;
+
+ if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) {
+ er = &box->shared_regs[idx];
+ raw_spin_lock_irqsave(&er->lock, flags);
+ if (!atomic_read(&er->ref) || er->config == config) {
+ atomic_inc(&er->ref);
+ er->config = config;
+ ret = true;
+ }
+ raw_spin_unlock_irqrestore(&er->lock, flags);
+
+ return ret;
+ }
+ /*
+ * The ZDP_CTL_FVC MSR has 4 fields which are used to control
+ * events 0xd ~ 0x10. Besides these 4 fields, there are additional
+ * fields which are shared.
+ */
+ idx -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
+ if (WARN_ON_ONCE(idx >= 4))
+ return false;
+
+ /* mask of the shared fields */
+ if (uncore_nhmex)
+ mask = NHMEX_M_PMON_ZDP_CTL_FVC_MASK;
+ else
+ mask = WSMEX_M_PMON_ZDP_CTL_FVC_MASK;
+ er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC];
+
+ raw_spin_lock_irqsave(&er->lock, flags);
+ /* add mask of the non-shared field if it's in use */
+ if (__BITS_VALUE(atomic_read(&er->ref), idx, 8)) {
+ if (uncore_nhmex)
+ mask |= NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
+ else
+ mask |= WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
+ }
+
+ if (!atomic_read(&er->ref) || !((er->config ^ config) & mask)) {
+ atomic_add(1 << (idx * 8), &er->ref);
+ if (uncore_nhmex)
+ mask = NHMEX_M_PMON_ZDP_CTL_FVC_MASK |
+ NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
+ else
+ mask = WSMEX_M_PMON_ZDP_CTL_FVC_MASK |
+ WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
+ er->config &= ~mask;
+ er->config |= (config & mask);
+ ret = true;
+ }
+ raw_spin_unlock_irqrestore(&er->lock, flags);
+
+ return ret;
+}
+
+static void nhmex_mbox_put_shared_reg(struct intel_uncore_box *box, int idx)
+{
+ struct intel_uncore_extra_reg *er;
+
+ if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) {
+ er = &box->shared_regs[idx];
+ atomic_dec(&er->ref);
+ return;
+ }
+
+ idx -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
+ er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC];
+ atomic_sub(1 << (idx * 8), &er->ref);
+}
+
+static u64 nhmex_mbox_alter_er(struct perf_event *event, int new_idx, bool modify)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ u64 idx, orig_idx = __BITS_VALUE(reg1->idx, 0, 8);
+ u64 config = reg1->config;
+
+ /* get the non-shared control bits and shift them */
+ idx = orig_idx - EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
+ if (uncore_nhmex)
+ config &= NHMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
+ else
+ config &= WSMEX_M_PMON_ZDP_CTL_FVC_EVENT_MASK(idx);
+ if (new_idx > orig_idx) {
+ idx = new_idx - orig_idx;
+ config <<= 3 * idx;
+ } else {
+ idx = orig_idx - new_idx;
+ config >>= 3 * idx;
+ }
+
+ /* add the shared control bits back */
+ if (uncore_nhmex)
+ config |= NHMEX_M_PMON_ZDP_CTL_FVC_MASK & reg1->config;
+ else
+ config |= WSMEX_M_PMON_ZDP_CTL_FVC_MASK & reg1->config;
+ config |= NHMEX_M_PMON_ZDP_CTL_FVC_MASK & reg1->config;
+ if (modify) {
+ /* adjust the main event selector */
+ if (new_idx > orig_idx)
+ hwc->config += idx << NHMEX_M_PMON_CTL_INC_SEL_SHIFT;
+ else
+ hwc->config -= idx << NHMEX_M_PMON_CTL_INC_SEL_SHIFT;
+ reg1->config = config;
+ reg1->idx = ~0xff | new_idx;
+ }
+ return config;
+}
+
+static struct event_constraint *
+nhmex_mbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
+ int i, idx[2], alloc = 0;
+ u64 config1 = reg1->config;
+
+ idx[0] = __BITS_VALUE(reg1->idx, 0, 8);
+ idx[1] = __BITS_VALUE(reg1->idx, 1, 8);
+again:
+ for (i = 0; i < 2; i++) {
+ if (!uncore_box_is_fake(box) && (reg1->alloc & (0x1 << i)))
+ idx[i] = 0xff;
+
+ if (idx[i] == 0xff)
+ continue;
+
+ if (!nhmex_mbox_get_shared_reg(box, idx[i],
+ __BITS_VALUE(config1, i, 32)))
+ goto fail;
+ alloc |= (0x1 << i);
+ }
+
+ /* for the match/mask registers */
+ if (reg2->idx != EXTRA_REG_NONE &&
+ (uncore_box_is_fake(box) || !reg2->alloc) &&
+ !nhmex_mbox_get_shared_reg(box, reg2->idx, reg2->config))
+ goto fail;
+
+ /*
+ * If it's a fake box -- as per validate_{group,event}() we
+ * shouldn't touch event state and we can avoid doing so
+ * since both will only call get_event_constraints() once
+ * on each event, this avoids the need for reg->alloc.
+ */
+ if (!uncore_box_is_fake(box)) {
+ if (idx[0] != 0xff && idx[0] != __BITS_VALUE(reg1->idx, 0, 8))
+ nhmex_mbox_alter_er(event, idx[0], true);
+ reg1->alloc |= alloc;
+ if (reg2->idx != EXTRA_REG_NONE)
+ reg2->alloc = 1;
+ }
+ return NULL;
+fail:
+ if (idx[0] != 0xff && !(alloc & 0x1) &&
+ idx[0] >= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC) {
+ /*
+ * events 0xd ~ 0x10 are functional identical, but are
+ * controlled by different fields in the ZDP_CTL_FVC
+ * register. If we failed to take one field, try the
+ * rest 3 choices.
+ */
+ BUG_ON(__BITS_VALUE(reg1->idx, 1, 8) != 0xff);
+ idx[0] -= EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
+ idx[0] = (idx[0] + 1) % 4;
+ idx[0] += EXTRA_REG_NHMEX_M_ZDP_CTL_FVC;
+ if (idx[0] != __BITS_VALUE(reg1->idx, 0, 8)) {
+ config1 = nhmex_mbox_alter_er(event, idx[0], false);
+ goto again;
+ }
+ }
+
+ if (alloc & 0x1)
+ nhmex_mbox_put_shared_reg(box, idx[0]);
+ if (alloc & 0x2)
+ nhmex_mbox_put_shared_reg(box, idx[1]);
+ return &uncore_constraint_empty;
+}
+
+static void nhmex_mbox_put_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
+
+ if (uncore_box_is_fake(box))
+ return;
+
+ if (reg1->alloc & 0x1)
+ nhmex_mbox_put_shared_reg(box, __BITS_VALUE(reg1->idx, 0, 8));
+ if (reg1->alloc & 0x2)
+ nhmex_mbox_put_shared_reg(box, __BITS_VALUE(reg1->idx, 1, 8));
+ reg1->alloc = 0;
+
+ if (reg2->alloc) {
+ nhmex_mbox_put_shared_reg(box, reg2->idx);
+ reg2->alloc = 0;
+ }
+}
+
+static int nhmex_mbox_extra_reg_idx(struct extra_reg *er)
+{
+ if (er->idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC)
+ return er->idx;
+ return er->idx + (er->event >> NHMEX_M_PMON_CTL_INC_SEL_SHIFT) - 0xd;
+}
+
+static int nhmex_mbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct intel_uncore_type *type = box->pmu->type;
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
+ struct extra_reg *er;
+ unsigned msr;
+ int reg_idx = 0;
+ /*
+ * The mbox events may require 2 extra MSRs at the most. But only
+ * the lower 32 bits in these MSRs are significant, so we can use
+ * config1 to pass two MSRs' config.
+ */
+ for (er = nhmex_uncore_mbox_extra_regs; er->msr; er++) {
+ if (er->event != (event->hw.config & er->config_mask))
+ continue;
+ if (event->attr.config1 & ~er->valid_mask)
+ return -EINVAL;
+
+ msr = er->msr + type->msr_offset * box->pmu->pmu_idx;
+ if (WARN_ON_ONCE(msr >= 0xffff || er->idx >= 0xff))
+ return -EINVAL;
+
+ /* always use the 32~63 bits to pass the PLD config */
+ if (er->idx == EXTRA_REG_NHMEX_M_PLD)
+ reg_idx = 1;
+ else if (WARN_ON_ONCE(reg_idx > 0))
+ return -EINVAL;
+
+ reg1->idx &= ~(0xff << (reg_idx * 8));
+ reg1->reg &= ~(0xffff << (reg_idx * 16));
+ reg1->idx |= nhmex_mbox_extra_reg_idx(er) << (reg_idx * 8);
+ reg1->reg |= msr << (reg_idx * 16);
+ reg1->config = event->attr.config1;
+ reg_idx++;
+ }
+ /*
+ * The mbox only provides ability to perform address matching
+ * for the PLD events.
+ */
+ if (reg_idx == 2) {
+ reg2->idx = EXTRA_REG_NHMEX_M_FILTER;
+ if (event->attr.config2 & NHMEX_M_PMON_MM_CFG_EN)
+ reg2->config = event->attr.config2;
+ else
+ reg2->config = ~0ULL;
+ if (box->pmu->pmu_idx == 0)
+ reg2->reg = NHMEX_M0_MSR_PMU_MM_CFG;
+ else
+ reg2->reg = NHMEX_M1_MSR_PMU_MM_CFG;
+ }
+ return 0;
+}
+
+static u64 nhmex_mbox_shared_reg_config(struct intel_uncore_box *box, int idx)
+{
+ struct intel_uncore_extra_reg *er;
+ unsigned long flags;
+ u64 config;
+
+ if (idx < EXTRA_REG_NHMEX_M_ZDP_CTL_FVC)
+ return box->shared_regs[idx].config;
+
+ er = &box->shared_regs[EXTRA_REG_NHMEX_M_ZDP_CTL_FVC];
+ raw_spin_lock_irqsave(&er->lock, flags);
+ config = er->config;
+ raw_spin_unlock_irqrestore(&er->lock, flags);
+ return config;
+}
+
+static void nhmex_mbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
+ int idx;
+
+ idx = __BITS_VALUE(reg1->idx, 0, 8);
+ if (idx != 0xff)
+ wrmsrl(__BITS_VALUE(reg1->reg, 0, 16),
+ nhmex_mbox_shared_reg_config(box, idx));
+ idx = __BITS_VALUE(reg1->idx, 1, 8);
+ if (idx != 0xff)
+ wrmsrl(__BITS_VALUE(reg1->reg, 1, 16),
+ nhmex_mbox_shared_reg_config(box, idx));
+
+ if (reg2->idx != EXTRA_REG_NONE) {
+ wrmsrl(reg2->reg, 0);
+ if (reg2->config != ~0ULL) {
+ wrmsrl(reg2->reg + 1,
+ reg2->config & NHMEX_M_PMON_ADDR_MATCH_MASK);
+ wrmsrl(reg2->reg + 2, NHMEX_M_PMON_ADDR_MASK_MASK &
+ (reg2->config >> NHMEX_M_PMON_ADDR_MASK_SHIFT));
+ wrmsrl(reg2->reg, NHMEX_M_PMON_MM_CFG_EN);
+ }
+ }
+
+ wrmsrl(hwc->config_base, hwc->config | NHMEX_PMON_CTL_EN_BIT0);
+}
+
+DEFINE_UNCORE_FORMAT_ATTR(count_mode, count_mode, "config:2-3");
+DEFINE_UNCORE_FORMAT_ATTR(storage_mode, storage_mode, "config:4-5");
+DEFINE_UNCORE_FORMAT_ATTR(wrap_mode, wrap_mode, "config:6");
+DEFINE_UNCORE_FORMAT_ATTR(flag_mode, flag_mode, "config:7");
+DEFINE_UNCORE_FORMAT_ATTR(inc_sel, inc_sel, "config:9-13");
+DEFINE_UNCORE_FORMAT_ATTR(set_flag_sel, set_flag_sel, "config:19-21");
+DEFINE_UNCORE_FORMAT_ATTR(filter_cfg_en, filter_cfg_en, "config2:63");
+DEFINE_UNCORE_FORMAT_ATTR(filter_match, filter_match, "config2:0-33");
+DEFINE_UNCORE_FORMAT_ATTR(filter_mask, filter_mask, "config2:34-61");
+DEFINE_UNCORE_FORMAT_ATTR(dsp, dsp, "config1:0-31");
+DEFINE_UNCORE_FORMAT_ATTR(thr, thr, "config1:0-31");
+DEFINE_UNCORE_FORMAT_ATTR(fvc, fvc, "config1:0-31");
+DEFINE_UNCORE_FORMAT_ATTR(pgt, pgt, "config1:0-31");
+DEFINE_UNCORE_FORMAT_ATTR(map, map, "config1:0-31");
+DEFINE_UNCORE_FORMAT_ATTR(iss, iss, "config1:0-31");
+DEFINE_UNCORE_FORMAT_ATTR(pld, pld, "config1:32-63");
+
+static struct attribute *nhmex_uncore_mbox_formats_attr[] = {
+ &format_attr_count_mode.attr,
+ &format_attr_storage_mode.attr,
+ &format_attr_wrap_mode.attr,
+ &format_attr_flag_mode.attr,
+ &format_attr_inc_sel.attr,
+ &format_attr_set_flag_sel.attr,
+ &format_attr_filter_cfg_en.attr,
+ &format_attr_filter_match.attr,
+ &format_attr_filter_mask.attr,
+ &format_attr_dsp.attr,
+ &format_attr_thr.attr,
+ &format_attr_fvc.attr,
+ &format_attr_pgt.attr,
+ &format_attr_map.attr,
+ &format_attr_iss.attr,
+ &format_attr_pld.attr,
+ NULL,
+};
+
+static const struct attribute_group nhmex_uncore_mbox_format_group = {
+ .name = "format",
+ .attrs = nhmex_uncore_mbox_formats_attr,
+};
+
+static struct uncore_event_desc nhmex_uncore_mbox_events[] = {
+ INTEL_UNCORE_EVENT_DESC(bbox_cmds_read, "inc_sel=0xd,fvc=0x2800"),
+ INTEL_UNCORE_EVENT_DESC(bbox_cmds_write, "inc_sel=0xd,fvc=0x2820"),
+ { /* end: all zeroes */ },
+};
+
+static struct uncore_event_desc wsmex_uncore_mbox_events[] = {
+ INTEL_UNCORE_EVENT_DESC(bbox_cmds_read, "inc_sel=0xd,fvc=0x5000"),
+ INTEL_UNCORE_EVENT_DESC(bbox_cmds_write, "inc_sel=0xd,fvc=0x5040"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_ops nhmex_uncore_mbox_ops = {
+ NHMEX_UNCORE_OPS_COMMON_INIT(),
+ .enable_event = nhmex_mbox_msr_enable_event,
+ .hw_config = nhmex_mbox_hw_config,
+ .get_constraint = nhmex_mbox_get_constraint,
+ .put_constraint = nhmex_mbox_put_constraint,
+};
+
+static struct intel_uncore_type nhmex_uncore_mbox = {
+ .name = "mbox",
+ .num_counters = 6,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .event_ctl = NHMEX_M0_MSR_PMU_CTL0,
+ .perf_ctr = NHMEX_M0_MSR_PMU_CNT0,
+ .event_mask = NHMEX_M_PMON_RAW_EVENT_MASK,
+ .box_ctl = NHMEX_M0_MSR_GLOBAL_CTL,
+ .msr_offset = NHMEX_M_MSR_OFFSET,
+ .pair_ctr_ctl = 1,
+ .num_shared_regs = 8,
+ .event_descs = nhmex_uncore_mbox_events,
+ .ops = &nhmex_uncore_mbox_ops,
+ .format_group = &nhmex_uncore_mbox_format_group,
+};
+
+static void nhmex_rbox_alter_er(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+
+ /* adjust the main event selector and extra register index */
+ if (reg1->idx % 2) {
+ reg1->idx--;
+ hwc->config -= 1 << NHMEX_R_PMON_CTL_EV_SEL_SHIFT;
+ } else {
+ reg1->idx++;
+ hwc->config += 1 << NHMEX_R_PMON_CTL_EV_SEL_SHIFT;
+ }
+
+ /* adjust extra register config */
+ switch (reg1->idx % 6) {
+ case 2:
+ /* shift the 8~15 bits to the 0~7 bits */
+ reg1->config >>= 8;
+ break;
+ case 3:
+ /* shift the 0~7 bits to the 8~15 bits */
+ reg1->config <<= 8;
+ break;
+ }
+}
+
+/*
+ * Each rbox has 4 event set which monitor PQI port 0~3 or 4~7.
+ * An event set consists of 6 events, the 3rd and 4th events in
+ * an event set use the same extra register. So an event set uses
+ * 5 extra registers.
+ */
+static struct event_constraint *
+nhmex_rbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
+ struct intel_uncore_extra_reg *er;
+ unsigned long flags;
+ int idx, er_idx;
+ u64 config1;
+ bool ok = false;
+
+ if (!uncore_box_is_fake(box) && reg1->alloc)
+ return NULL;
+
+ idx = reg1->idx % 6;
+ config1 = reg1->config;
+again:
+ er_idx = idx;
+ /* the 3rd and 4th events use the same extra register */
+ if (er_idx > 2)
+ er_idx--;
+ er_idx += (reg1->idx / 6) * 5;
+
+ er = &box->shared_regs[er_idx];
+ raw_spin_lock_irqsave(&er->lock, flags);
+ if (idx < 2) {
+ if (!atomic_read(&er->ref) || er->config == reg1->config) {
+ atomic_inc(&er->ref);
+ er->config = reg1->config;
+ ok = true;
+ }
+ } else if (idx == 2 || idx == 3) {
+ /*
+ * these two events use different fields in a extra register,
+ * the 0~7 bits and the 8~15 bits respectively.
+ */
+ u64 mask = 0xff << ((idx - 2) * 8);
+ if (!__BITS_VALUE(atomic_read(&er->ref), idx - 2, 8) ||
+ !((er->config ^ config1) & mask)) {
+ atomic_add(1 << ((idx - 2) * 8), &er->ref);
+ er->config &= ~mask;
+ er->config |= config1 & mask;
+ ok = true;
+ }
+ } else {
+ if (!atomic_read(&er->ref) ||
+ (er->config == (hwc->config >> 32) &&
+ er->config1 == reg1->config &&
+ er->config2 == reg2->config)) {
+ atomic_inc(&er->ref);
+ er->config = (hwc->config >> 32);
+ er->config1 = reg1->config;
+ er->config2 = reg2->config;
+ ok = true;
+ }
+ }
+ raw_spin_unlock_irqrestore(&er->lock, flags);
+
+ if (!ok) {
+ /*
+ * The Rbox events are always in pairs. The paired
+ * events are functional identical, but use different
+ * extra registers. If we failed to take an extra
+ * register, try the alternative.
+ */
+ idx ^= 1;
+ if (idx != reg1->idx % 6) {
+ if (idx == 2)
+ config1 >>= 8;
+ else if (idx == 3)
+ config1 <<= 8;
+ goto again;
+ }
+ } else {
+ if (!uncore_box_is_fake(box)) {
+ if (idx != reg1->idx % 6)
+ nhmex_rbox_alter_er(box, event);
+ reg1->alloc = 1;
+ }
+ return NULL;
+ }
+ return &uncore_constraint_empty;
+}
+
+static void nhmex_rbox_put_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct intel_uncore_extra_reg *er;
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ int idx, er_idx;
+
+ if (uncore_box_is_fake(box) || !reg1->alloc)
+ return;
+
+ idx = reg1->idx % 6;
+ er_idx = idx;
+ if (er_idx > 2)
+ er_idx--;
+ er_idx += (reg1->idx / 6) * 5;
+
+ er = &box->shared_regs[er_idx];
+ if (idx == 2 || idx == 3)
+ atomic_sub(1 << ((idx - 2) * 8), &er->ref);
+ else
+ atomic_dec(&er->ref);
+
+ reg1->alloc = 0;
+}
+
+static int nhmex_rbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct hw_perf_event_extra *reg2 = &event->hw.branch_reg;
+ int idx;
+
+ idx = (event->hw.config & NHMEX_R_PMON_CTL_EV_SEL_MASK) >>
+ NHMEX_R_PMON_CTL_EV_SEL_SHIFT;
+ if (idx >= 0x18)
+ return -EINVAL;
+
+ reg1->idx = idx;
+ reg1->config = event->attr.config1;
+
+ switch (idx % 6) {
+ case 4:
+ case 5:
+ hwc->config |= event->attr.config & (~0ULL << 32);
+ reg2->config = event->attr.config2;
+ break;
+ }
+ return 0;
+}
+
+static void nhmex_rbox_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
+ int idx, port;
+
+ idx = reg1->idx;
+ port = idx / 6 + box->pmu->pmu_idx * 4;
+
+ switch (idx % 6) {
+ case 0:
+ wrmsrl(NHMEX_R_MSR_PORTN_IPERF_CFG0(port), reg1->config);
+ break;
+ case 1:
+ wrmsrl(NHMEX_R_MSR_PORTN_IPERF_CFG1(port), reg1->config);
+ break;
+ case 2:
+ case 3:
+ wrmsrl(NHMEX_R_MSR_PORTN_QLX_CFG(port),
+ uncore_shared_reg_config(box, 2 + (idx / 6) * 5));
+ break;
+ case 4:
+ wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET1_MM_CFG(port),
+ hwc->config >> 32);
+ wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET1_MATCH(port), reg1->config);
+ wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET1_MASK(port), reg2->config);
+ break;
+ case 5:
+ wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET2_MM_CFG(port),
+ hwc->config >> 32);
+ wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET2_MATCH(port), reg1->config);
+ wrmsrl(NHMEX_R_MSR_PORTN_XBR_SET2_MASK(port), reg2->config);
+ break;
+ }
+
+ wrmsrl(hwc->config_base, NHMEX_PMON_CTL_EN_BIT0 |
+ (hwc->config & NHMEX_R_PMON_CTL_EV_SEL_MASK));
+}
+
+DEFINE_UNCORE_FORMAT_ATTR(xbr_mm_cfg, xbr_mm_cfg, "config:32-63");
+DEFINE_UNCORE_FORMAT_ATTR(xbr_match, xbr_match, "config1:0-63");
+DEFINE_UNCORE_FORMAT_ATTR(xbr_mask, xbr_mask, "config2:0-63");
+DEFINE_UNCORE_FORMAT_ATTR(qlx_cfg, qlx_cfg, "config1:0-15");
+DEFINE_UNCORE_FORMAT_ATTR(iperf_cfg, iperf_cfg, "config1:0-31");
+
+static struct attribute *nhmex_uncore_rbox_formats_attr[] = {
+ &format_attr_event5.attr,
+ &format_attr_xbr_mm_cfg.attr,
+ &format_attr_xbr_match.attr,
+ &format_attr_xbr_mask.attr,
+ &format_attr_qlx_cfg.attr,
+ &format_attr_iperf_cfg.attr,
+ NULL,
+};
+
+static const struct attribute_group nhmex_uncore_rbox_format_group = {
+ .name = "format",
+ .attrs = nhmex_uncore_rbox_formats_attr,
+};
+
+static struct uncore_event_desc nhmex_uncore_rbox_events[] = {
+ INTEL_UNCORE_EVENT_DESC(qpi0_flit_send, "event=0x0,iperf_cfg=0x80000000"),
+ INTEL_UNCORE_EVENT_DESC(qpi1_filt_send, "event=0x6,iperf_cfg=0x80000000"),
+ INTEL_UNCORE_EVENT_DESC(qpi0_idle_filt, "event=0x0,iperf_cfg=0x40000000"),
+ INTEL_UNCORE_EVENT_DESC(qpi1_idle_filt, "event=0x6,iperf_cfg=0x40000000"),
+ INTEL_UNCORE_EVENT_DESC(qpi0_date_response, "event=0x0,iperf_cfg=0xc4"),
+ INTEL_UNCORE_EVENT_DESC(qpi1_date_response, "event=0x6,iperf_cfg=0xc4"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_ops nhmex_uncore_rbox_ops = {
+ NHMEX_UNCORE_OPS_COMMON_INIT(),
+ .enable_event = nhmex_rbox_msr_enable_event,
+ .hw_config = nhmex_rbox_hw_config,
+ .get_constraint = nhmex_rbox_get_constraint,
+ .put_constraint = nhmex_rbox_put_constraint,
+};
+
+static struct intel_uncore_type nhmex_uncore_rbox = {
+ .name = "rbox",
+ .num_counters = 8,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .event_ctl = NHMEX_R_MSR_PMON_CTL0,
+ .perf_ctr = NHMEX_R_MSR_PMON_CNT0,
+ .event_mask = NHMEX_R_PMON_RAW_EVENT_MASK,
+ .box_ctl = NHMEX_R_MSR_GLOBAL_CTL,
+ .msr_offset = NHMEX_R_MSR_OFFSET,
+ .pair_ctr_ctl = 1,
+ .num_shared_regs = 20,
+ .event_descs = nhmex_uncore_rbox_events,
+ .ops = &nhmex_uncore_rbox_ops,
+ .format_group = &nhmex_uncore_rbox_format_group
+};
+
+static struct intel_uncore_type *nhmex_msr_uncores[] = {
+ &nhmex_uncore_ubox,
+ &nhmex_uncore_cbox,
+ &nhmex_uncore_bbox,
+ &nhmex_uncore_sbox,
+ &nhmex_uncore_mbox,
+ &nhmex_uncore_rbox,
+ &nhmex_uncore_wbox,
+ NULL,
+};
+
+void nhmex_uncore_cpu_init(void)
+{
+ if (boot_cpu_data.x86_model == 46)
+ uncore_nhmex = true;
+ else
+ nhmex_uncore_mbox.event_descs = wsmex_uncore_mbox_events;
+ if (nhmex_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
+ nhmex_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
+ uncore_msr_uncores = nhmex_msr_uncores;
+}
+/* end of Nehalem-EX uncore support */
diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c
new file mode 100644
index 000000000000..7fd4334e12a1
--- /dev/null
+++ b/arch/x86/events/intel/uncore_snb.c
@@ -0,0 +1,1705 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Nehalem/SandBridge/Haswell/Broadwell/Skylake uncore support */
+#include "uncore.h"
+#include "uncore_discovery.h"
+
+/* Uncore IMC PCI IDs */
+#define PCI_DEVICE_ID_INTEL_SNB_IMC 0x0100
+#define PCI_DEVICE_ID_INTEL_IVB_IMC 0x0154
+#define PCI_DEVICE_ID_INTEL_IVB_E3_IMC 0x0150
+#define PCI_DEVICE_ID_INTEL_HSW_IMC 0x0c00
+#define PCI_DEVICE_ID_INTEL_HSW_U_IMC 0x0a04
+#define PCI_DEVICE_ID_INTEL_BDW_IMC 0x1604
+#define PCI_DEVICE_ID_INTEL_SKL_U_IMC 0x1904
+#define PCI_DEVICE_ID_INTEL_SKL_Y_IMC 0x190c
+#define PCI_DEVICE_ID_INTEL_SKL_HD_IMC 0x1900
+#define PCI_DEVICE_ID_INTEL_SKL_HQ_IMC 0x1910
+#define PCI_DEVICE_ID_INTEL_SKL_SD_IMC 0x190f
+#define PCI_DEVICE_ID_INTEL_SKL_SQ_IMC 0x191f
+#define PCI_DEVICE_ID_INTEL_SKL_E3_IMC 0x1918
+#define PCI_DEVICE_ID_INTEL_KBL_Y_IMC 0x590c
+#define PCI_DEVICE_ID_INTEL_KBL_U_IMC 0x5904
+#define PCI_DEVICE_ID_INTEL_KBL_UQ_IMC 0x5914
+#define PCI_DEVICE_ID_INTEL_KBL_SD_IMC 0x590f
+#define PCI_DEVICE_ID_INTEL_KBL_SQ_IMC 0x591f
+#define PCI_DEVICE_ID_INTEL_KBL_HQ_IMC 0x5910
+#define PCI_DEVICE_ID_INTEL_KBL_WQ_IMC 0x5918
+#define PCI_DEVICE_ID_INTEL_CFL_2U_IMC 0x3ecc
+#define PCI_DEVICE_ID_INTEL_CFL_4U_IMC 0x3ed0
+#define PCI_DEVICE_ID_INTEL_CFL_4H_IMC 0x3e10
+#define PCI_DEVICE_ID_INTEL_CFL_6H_IMC 0x3ec4
+#define PCI_DEVICE_ID_INTEL_CFL_2S_D_IMC 0x3e0f
+#define PCI_DEVICE_ID_INTEL_CFL_4S_D_IMC 0x3e1f
+#define PCI_DEVICE_ID_INTEL_CFL_6S_D_IMC 0x3ec2
+#define PCI_DEVICE_ID_INTEL_CFL_8S_D_IMC 0x3e30
+#define PCI_DEVICE_ID_INTEL_CFL_4S_W_IMC 0x3e18
+#define PCI_DEVICE_ID_INTEL_CFL_6S_W_IMC 0x3ec6
+#define PCI_DEVICE_ID_INTEL_CFL_8S_W_IMC 0x3e31
+#define PCI_DEVICE_ID_INTEL_CFL_4S_S_IMC 0x3e33
+#define PCI_DEVICE_ID_INTEL_CFL_6S_S_IMC 0x3eca
+#define PCI_DEVICE_ID_INTEL_CFL_8S_S_IMC 0x3e32
+#define PCI_DEVICE_ID_INTEL_AML_YD_IMC 0x590c
+#define PCI_DEVICE_ID_INTEL_AML_YQ_IMC 0x590d
+#define PCI_DEVICE_ID_INTEL_WHL_UQ_IMC 0x3ed0
+#define PCI_DEVICE_ID_INTEL_WHL_4_UQ_IMC 0x3e34
+#define PCI_DEVICE_ID_INTEL_WHL_UD_IMC 0x3e35
+#define PCI_DEVICE_ID_INTEL_CML_H1_IMC 0x9b44
+#define PCI_DEVICE_ID_INTEL_CML_H2_IMC 0x9b54
+#define PCI_DEVICE_ID_INTEL_CML_H3_IMC 0x9b64
+#define PCI_DEVICE_ID_INTEL_CML_U1_IMC 0x9b51
+#define PCI_DEVICE_ID_INTEL_CML_U2_IMC 0x9b61
+#define PCI_DEVICE_ID_INTEL_CML_U3_IMC 0x9b71
+#define PCI_DEVICE_ID_INTEL_CML_S1_IMC 0x9b33
+#define PCI_DEVICE_ID_INTEL_CML_S2_IMC 0x9b43
+#define PCI_DEVICE_ID_INTEL_CML_S3_IMC 0x9b53
+#define PCI_DEVICE_ID_INTEL_CML_S4_IMC 0x9b63
+#define PCI_DEVICE_ID_INTEL_CML_S5_IMC 0x9b73
+#define PCI_DEVICE_ID_INTEL_ICL_U_IMC 0x8a02
+#define PCI_DEVICE_ID_INTEL_ICL_U2_IMC 0x8a12
+#define PCI_DEVICE_ID_INTEL_TGL_U1_IMC 0x9a02
+#define PCI_DEVICE_ID_INTEL_TGL_U2_IMC 0x9a04
+#define PCI_DEVICE_ID_INTEL_TGL_U3_IMC 0x9a12
+#define PCI_DEVICE_ID_INTEL_TGL_U4_IMC 0x9a14
+#define PCI_DEVICE_ID_INTEL_TGL_H_IMC 0x9a36
+#define PCI_DEVICE_ID_INTEL_RKL_1_IMC 0x4c43
+#define PCI_DEVICE_ID_INTEL_RKL_2_IMC 0x4c53
+#define PCI_DEVICE_ID_INTEL_ADL_1_IMC 0x4660
+#define PCI_DEVICE_ID_INTEL_ADL_2_IMC 0x4641
+#define PCI_DEVICE_ID_INTEL_ADL_3_IMC 0x4601
+#define PCI_DEVICE_ID_INTEL_ADL_4_IMC 0x4602
+#define PCI_DEVICE_ID_INTEL_ADL_5_IMC 0x4609
+#define PCI_DEVICE_ID_INTEL_ADL_6_IMC 0x460a
+#define PCI_DEVICE_ID_INTEL_ADL_7_IMC 0x4621
+#define PCI_DEVICE_ID_INTEL_ADL_8_IMC 0x4623
+#define PCI_DEVICE_ID_INTEL_ADL_9_IMC 0x4629
+#define PCI_DEVICE_ID_INTEL_ADL_10_IMC 0x4637
+#define PCI_DEVICE_ID_INTEL_ADL_11_IMC 0x463b
+#define PCI_DEVICE_ID_INTEL_ADL_12_IMC 0x4648
+#define PCI_DEVICE_ID_INTEL_ADL_13_IMC 0x4649
+#define PCI_DEVICE_ID_INTEL_ADL_14_IMC 0x4650
+#define PCI_DEVICE_ID_INTEL_ADL_15_IMC 0x4668
+#define PCI_DEVICE_ID_INTEL_ADL_16_IMC 0x4670
+#define PCI_DEVICE_ID_INTEL_ADL_17_IMC 0x4614
+#define PCI_DEVICE_ID_INTEL_ADL_18_IMC 0x4617
+#define PCI_DEVICE_ID_INTEL_ADL_19_IMC 0x4618
+#define PCI_DEVICE_ID_INTEL_ADL_20_IMC 0x461B
+#define PCI_DEVICE_ID_INTEL_ADL_21_IMC 0x461C
+#define PCI_DEVICE_ID_INTEL_RPL_1_IMC 0xA700
+#define PCI_DEVICE_ID_INTEL_RPL_2_IMC 0xA702
+#define PCI_DEVICE_ID_INTEL_RPL_3_IMC 0xA706
+#define PCI_DEVICE_ID_INTEL_RPL_4_IMC 0xA709
+#define PCI_DEVICE_ID_INTEL_RPL_5_IMC 0xA701
+#define PCI_DEVICE_ID_INTEL_RPL_6_IMC 0xA703
+#define PCI_DEVICE_ID_INTEL_RPL_7_IMC 0xA704
+#define PCI_DEVICE_ID_INTEL_RPL_8_IMC 0xA705
+#define PCI_DEVICE_ID_INTEL_RPL_9_IMC 0xA706
+#define PCI_DEVICE_ID_INTEL_RPL_10_IMC 0xA707
+#define PCI_DEVICE_ID_INTEL_RPL_11_IMC 0xA708
+#define PCI_DEVICE_ID_INTEL_RPL_12_IMC 0xA709
+#define PCI_DEVICE_ID_INTEL_RPL_13_IMC 0xA70a
+#define PCI_DEVICE_ID_INTEL_RPL_14_IMC 0xA70b
+#define PCI_DEVICE_ID_INTEL_RPL_15_IMC 0xA715
+#define PCI_DEVICE_ID_INTEL_RPL_16_IMC 0xA716
+#define PCI_DEVICE_ID_INTEL_RPL_17_IMC 0xA717
+#define PCI_DEVICE_ID_INTEL_RPL_18_IMC 0xA718
+#define PCI_DEVICE_ID_INTEL_RPL_19_IMC 0xA719
+#define PCI_DEVICE_ID_INTEL_RPL_20_IMC 0xA71A
+#define PCI_DEVICE_ID_INTEL_RPL_21_IMC 0xA71B
+#define PCI_DEVICE_ID_INTEL_RPL_22_IMC 0xA71C
+#define PCI_DEVICE_ID_INTEL_RPL_23_IMC 0xA728
+#define PCI_DEVICE_ID_INTEL_RPL_24_IMC 0xA729
+#define PCI_DEVICE_ID_INTEL_RPL_25_IMC 0xA72A
+#define PCI_DEVICE_ID_INTEL_MTL_1_IMC 0x7d00
+#define PCI_DEVICE_ID_INTEL_MTL_2_IMC 0x7d01
+#define PCI_DEVICE_ID_INTEL_MTL_3_IMC 0x7d02
+#define PCI_DEVICE_ID_INTEL_MTL_4_IMC 0x7d05
+#define PCI_DEVICE_ID_INTEL_MTL_5_IMC 0x7d10
+#define PCI_DEVICE_ID_INTEL_MTL_6_IMC 0x7d14
+#define PCI_DEVICE_ID_INTEL_MTL_7_IMC 0x7d15
+#define PCI_DEVICE_ID_INTEL_MTL_8_IMC 0x7d16
+#define PCI_DEVICE_ID_INTEL_MTL_9_IMC 0x7d21
+#define PCI_DEVICE_ID_INTEL_MTL_10_IMC 0x7d22
+#define PCI_DEVICE_ID_INTEL_MTL_11_IMC 0x7d23
+#define PCI_DEVICE_ID_INTEL_MTL_12_IMC 0x7d24
+#define PCI_DEVICE_ID_INTEL_MTL_13_IMC 0x7d28
+
+
+#define IMC_UNCORE_DEV(a) \
+{ \
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_##a##_IMC), \
+ .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), \
+}
+
+/* SNB event control */
+#define SNB_UNC_CTL_EV_SEL_MASK 0x000000ff
+#define SNB_UNC_CTL_UMASK_MASK 0x0000ff00
+#define SNB_UNC_CTL_EDGE_DET (1 << 18)
+#define SNB_UNC_CTL_EN (1 << 22)
+#define SNB_UNC_CTL_INVERT (1 << 23)
+#define SNB_UNC_CTL_CMASK_MASK 0x1f000000
+#define NHM_UNC_CTL_CMASK_MASK 0xff000000
+#define NHM_UNC_FIXED_CTR_CTL_EN (1 << 0)
+
+#define SNB_UNC_RAW_EVENT_MASK (SNB_UNC_CTL_EV_SEL_MASK | \
+ SNB_UNC_CTL_UMASK_MASK | \
+ SNB_UNC_CTL_EDGE_DET | \
+ SNB_UNC_CTL_INVERT | \
+ SNB_UNC_CTL_CMASK_MASK)
+
+#define NHM_UNC_RAW_EVENT_MASK (SNB_UNC_CTL_EV_SEL_MASK | \
+ SNB_UNC_CTL_UMASK_MASK | \
+ SNB_UNC_CTL_EDGE_DET | \
+ SNB_UNC_CTL_INVERT | \
+ NHM_UNC_CTL_CMASK_MASK)
+
+/* SNB global control register */
+#define SNB_UNC_PERF_GLOBAL_CTL 0x391
+#define SNB_UNC_FIXED_CTR_CTRL 0x394
+#define SNB_UNC_FIXED_CTR 0x395
+
+/* SNB uncore global control */
+#define SNB_UNC_GLOBAL_CTL_CORE_ALL ((1 << 4) - 1)
+#define SNB_UNC_GLOBAL_CTL_EN (1 << 29)
+
+/* SNB Cbo register */
+#define SNB_UNC_CBO_0_PERFEVTSEL0 0x700
+#define SNB_UNC_CBO_0_PER_CTR0 0x706
+#define SNB_UNC_CBO_MSR_OFFSET 0x10
+
+/* SNB ARB register */
+#define SNB_UNC_ARB_PER_CTR0 0x3b0
+#define SNB_UNC_ARB_PERFEVTSEL0 0x3b2
+#define SNB_UNC_ARB_MSR_OFFSET 0x10
+
+/* NHM global control register */
+#define NHM_UNC_PERF_GLOBAL_CTL 0x391
+#define NHM_UNC_FIXED_CTR 0x394
+#define NHM_UNC_FIXED_CTR_CTRL 0x395
+
+/* NHM uncore global control */
+#define NHM_UNC_GLOBAL_CTL_EN_PC_ALL ((1ULL << 8) - 1)
+#define NHM_UNC_GLOBAL_CTL_EN_FC (1ULL << 32)
+
+/* NHM uncore register */
+#define NHM_UNC_PERFEVTSEL0 0x3c0
+#define NHM_UNC_UNCORE_PMC0 0x3b0
+
+/* SKL uncore global control */
+#define SKL_UNC_PERF_GLOBAL_CTL 0xe01
+#define SKL_UNC_GLOBAL_CTL_CORE_ALL ((1 << 5) - 1)
+
+/* ICL Cbo register */
+#define ICL_UNC_CBO_CONFIG 0x396
+#define ICL_UNC_NUM_CBO_MASK 0xf
+#define ICL_UNC_CBO_0_PER_CTR0 0x702
+#define ICL_UNC_CBO_MSR_OFFSET 0x8
+
+/* ICL ARB register */
+#define ICL_UNC_ARB_PER_CTR 0x3b1
+#define ICL_UNC_ARB_PERFEVTSEL 0x3b3
+
+/* ADL uncore global control */
+#define ADL_UNC_PERF_GLOBAL_CTL 0x2ff0
+#define ADL_UNC_FIXED_CTR_CTRL 0x2fde
+#define ADL_UNC_FIXED_CTR 0x2fdf
+
+/* ADL Cbo register */
+#define ADL_UNC_CBO_0_PER_CTR0 0x2002
+#define ADL_UNC_CBO_0_PERFEVTSEL0 0x2000
+#define ADL_UNC_CTL_THRESHOLD 0x3f000000
+#define ADL_UNC_RAW_EVENT_MASK (SNB_UNC_CTL_EV_SEL_MASK | \
+ SNB_UNC_CTL_UMASK_MASK | \
+ SNB_UNC_CTL_EDGE_DET | \
+ SNB_UNC_CTL_INVERT | \
+ ADL_UNC_CTL_THRESHOLD)
+
+/* ADL ARB register */
+#define ADL_UNC_ARB_PER_CTR0 0x2FD2
+#define ADL_UNC_ARB_PERFEVTSEL0 0x2FD0
+#define ADL_UNC_ARB_MSR_OFFSET 0x8
+
+/* MTL Cbo register */
+#define MTL_UNC_CBO_0_PER_CTR0 0x2448
+#define MTL_UNC_CBO_0_PERFEVTSEL0 0x2442
+
+/* MTL HAC_ARB register */
+#define MTL_UNC_HAC_ARB_CTR 0x2018
+#define MTL_UNC_HAC_ARB_CTRL 0x2012
+
+/* MTL ARB register */
+#define MTL_UNC_ARB_CTR 0x2418
+#define MTL_UNC_ARB_CTRL 0x2412
+
+/* MTL cNCU register */
+#define MTL_UNC_CNCU_FIXED_CTR 0x2408
+#define MTL_UNC_CNCU_FIXED_CTRL 0x2402
+#define MTL_UNC_CNCU_BOX_CTL 0x240e
+
+/* MTL sNCU register */
+#define MTL_UNC_SNCU_FIXED_CTR 0x2008
+#define MTL_UNC_SNCU_FIXED_CTRL 0x2002
+#define MTL_UNC_SNCU_BOX_CTL 0x200e
+
+/* MTL HAC_CBO register */
+#define MTL_UNC_HBO_CTR 0x2048
+#define MTL_UNC_HBO_CTRL 0x2042
+
+DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
+DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
+DEFINE_UNCORE_FORMAT_ATTR(chmask, chmask, "config:8-11");
+DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
+DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
+DEFINE_UNCORE_FORMAT_ATTR(cmask5, cmask, "config:24-28");
+DEFINE_UNCORE_FORMAT_ATTR(cmask8, cmask, "config:24-31");
+DEFINE_UNCORE_FORMAT_ATTR(threshold, threshold, "config:24-29");
+
+/* Sandy Bridge uncore support */
+static void snb_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (hwc->idx < UNCORE_PMC_IDX_FIXED)
+ wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN);
+ else
+ wrmsrl(hwc->config_base, SNB_UNC_CTL_EN);
+}
+
+static void snb_uncore_msr_disable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ wrmsrl(event->hw.config_base, 0);
+}
+
+static void snb_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0) {
+ wrmsrl(SNB_UNC_PERF_GLOBAL_CTL,
+ SNB_UNC_GLOBAL_CTL_EN | SNB_UNC_GLOBAL_CTL_CORE_ALL);
+ }
+}
+
+static void snb_uncore_msr_enable_box(struct intel_uncore_box *box)
+{
+ wrmsrl(SNB_UNC_PERF_GLOBAL_CTL,
+ SNB_UNC_GLOBAL_CTL_EN | SNB_UNC_GLOBAL_CTL_CORE_ALL);
+}
+
+static void snb_uncore_msr_exit_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0)
+ wrmsrl(SNB_UNC_PERF_GLOBAL_CTL, 0);
+}
+
+static struct uncore_event_desc snb_uncore_events[] = {
+ INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"),
+ { /* end: all zeroes */ },
+};
+
+static struct attribute *snb_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_cmask5.attr,
+ NULL,
+};
+
+static const struct attribute_group snb_uncore_format_group = {
+ .name = "format",
+ .attrs = snb_uncore_formats_attr,
+};
+
+static struct intel_uncore_ops snb_uncore_msr_ops = {
+ .init_box = snb_uncore_msr_init_box,
+ .enable_box = snb_uncore_msr_enable_box,
+ .exit_box = snb_uncore_msr_exit_box,
+ .disable_event = snb_uncore_msr_disable_event,
+ .enable_event = snb_uncore_msr_enable_event,
+ .read_counter = uncore_msr_read_counter,
+};
+
+static struct event_constraint snb_uncore_arb_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x80, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x83, 0x1),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type snb_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 2,
+ .num_boxes = 4,
+ .perf_ctr_bits = 44,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = SNB_UNC_CBO_0_PER_CTR0,
+ .event_ctl = SNB_UNC_CBO_0_PERFEVTSEL0,
+ .fixed_ctr = SNB_UNC_FIXED_CTR,
+ .fixed_ctl = SNB_UNC_FIXED_CTR_CTRL,
+ .single_fixed = 1,
+ .event_mask = SNB_UNC_RAW_EVENT_MASK,
+ .msr_offset = SNB_UNC_CBO_MSR_OFFSET,
+ .ops = &snb_uncore_msr_ops,
+ .format_group = &snb_uncore_format_group,
+ .event_descs = snb_uncore_events,
+};
+
+static struct intel_uncore_type snb_uncore_arb = {
+ .name = "arb",
+ .num_counters = 2,
+ .num_boxes = 1,
+ .perf_ctr_bits = 44,
+ .perf_ctr = SNB_UNC_ARB_PER_CTR0,
+ .event_ctl = SNB_UNC_ARB_PERFEVTSEL0,
+ .event_mask = SNB_UNC_RAW_EVENT_MASK,
+ .msr_offset = SNB_UNC_ARB_MSR_OFFSET,
+ .constraints = snb_uncore_arb_constraints,
+ .ops = &snb_uncore_msr_ops,
+ .format_group = &snb_uncore_format_group,
+};
+
+static struct intel_uncore_type *snb_msr_uncores[] = {
+ &snb_uncore_cbox,
+ &snb_uncore_arb,
+ NULL,
+};
+
+void snb_uncore_cpu_init(void)
+{
+ uncore_msr_uncores = snb_msr_uncores;
+ if (snb_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
+ snb_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
+}
+
+static void skl_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0) {
+ wrmsrl(SKL_UNC_PERF_GLOBAL_CTL,
+ SNB_UNC_GLOBAL_CTL_EN | SKL_UNC_GLOBAL_CTL_CORE_ALL);
+ }
+
+ /* The 8th CBOX has different MSR space */
+ if (box->pmu->pmu_idx == 7)
+ __set_bit(UNCORE_BOX_FLAG_CFL8_CBOX_MSR_OFFS, &box->flags);
+}
+
+static void skl_uncore_msr_enable_box(struct intel_uncore_box *box)
+{
+ wrmsrl(SKL_UNC_PERF_GLOBAL_CTL,
+ SNB_UNC_GLOBAL_CTL_EN | SKL_UNC_GLOBAL_CTL_CORE_ALL);
+}
+
+static void skl_uncore_msr_exit_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0)
+ wrmsrl(SKL_UNC_PERF_GLOBAL_CTL, 0);
+}
+
+static struct intel_uncore_ops skl_uncore_msr_ops = {
+ .init_box = skl_uncore_msr_init_box,
+ .enable_box = skl_uncore_msr_enable_box,
+ .exit_box = skl_uncore_msr_exit_box,
+ .disable_event = snb_uncore_msr_disable_event,
+ .enable_event = snb_uncore_msr_enable_event,
+ .read_counter = uncore_msr_read_counter,
+};
+
+static struct intel_uncore_type skl_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 4,
+ .num_boxes = 8,
+ .perf_ctr_bits = 44,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = SNB_UNC_CBO_0_PER_CTR0,
+ .event_ctl = SNB_UNC_CBO_0_PERFEVTSEL0,
+ .fixed_ctr = SNB_UNC_FIXED_CTR,
+ .fixed_ctl = SNB_UNC_FIXED_CTR_CTRL,
+ .single_fixed = 1,
+ .event_mask = SNB_UNC_RAW_EVENT_MASK,
+ .msr_offset = SNB_UNC_CBO_MSR_OFFSET,
+ .ops = &skl_uncore_msr_ops,
+ .format_group = &snb_uncore_format_group,
+ .event_descs = snb_uncore_events,
+};
+
+static struct intel_uncore_type *skl_msr_uncores[] = {
+ &skl_uncore_cbox,
+ &snb_uncore_arb,
+ NULL,
+};
+
+void skl_uncore_cpu_init(void)
+{
+ uncore_msr_uncores = skl_msr_uncores;
+ if (skl_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
+ skl_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
+ snb_uncore_arb.ops = &skl_uncore_msr_ops;
+}
+
+static struct intel_uncore_ops icl_uncore_msr_ops = {
+ .disable_event = snb_uncore_msr_disable_event,
+ .enable_event = snb_uncore_msr_enable_event,
+ .read_counter = uncore_msr_read_counter,
+};
+
+static struct intel_uncore_type icl_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 2,
+ .perf_ctr_bits = 44,
+ .perf_ctr = ICL_UNC_CBO_0_PER_CTR0,
+ .event_ctl = SNB_UNC_CBO_0_PERFEVTSEL0,
+ .event_mask = SNB_UNC_RAW_EVENT_MASK,
+ .msr_offset = ICL_UNC_CBO_MSR_OFFSET,
+ .ops = &icl_uncore_msr_ops,
+ .format_group = &snb_uncore_format_group,
+};
+
+static struct uncore_event_desc icl_uncore_events[] = {
+ INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff"),
+ { /* end: all zeroes */ },
+};
+
+static struct attribute *icl_uncore_clock_formats_attr[] = {
+ &format_attr_event.attr,
+ NULL,
+};
+
+static struct attribute_group icl_uncore_clock_format_group = {
+ .name = "format",
+ .attrs = icl_uncore_clock_formats_attr,
+};
+
+static struct intel_uncore_type icl_uncore_clockbox = {
+ .name = "clock",
+ .num_counters = 1,
+ .num_boxes = 1,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = SNB_UNC_FIXED_CTR,
+ .fixed_ctl = SNB_UNC_FIXED_CTR_CTRL,
+ .single_fixed = 1,
+ .event_mask = SNB_UNC_CTL_EV_SEL_MASK,
+ .format_group = &icl_uncore_clock_format_group,
+ .ops = &icl_uncore_msr_ops,
+ .event_descs = icl_uncore_events,
+};
+
+static struct intel_uncore_type icl_uncore_arb = {
+ .name = "arb",
+ .num_counters = 1,
+ .num_boxes = 1,
+ .perf_ctr_bits = 44,
+ .perf_ctr = ICL_UNC_ARB_PER_CTR,
+ .event_ctl = ICL_UNC_ARB_PERFEVTSEL,
+ .event_mask = SNB_UNC_RAW_EVENT_MASK,
+ .ops = &icl_uncore_msr_ops,
+ .format_group = &snb_uncore_format_group,
+};
+
+static struct intel_uncore_type *icl_msr_uncores[] = {
+ &icl_uncore_cbox,
+ &icl_uncore_arb,
+ &icl_uncore_clockbox,
+ NULL,
+};
+
+static int icl_get_cbox_num(void)
+{
+ u64 num_boxes;
+
+ rdmsrl(ICL_UNC_CBO_CONFIG, num_boxes);
+
+ return num_boxes & ICL_UNC_NUM_CBO_MASK;
+}
+
+void icl_uncore_cpu_init(void)
+{
+ uncore_msr_uncores = icl_msr_uncores;
+ icl_uncore_cbox.num_boxes = icl_get_cbox_num();
+}
+
+static struct intel_uncore_type *tgl_msr_uncores[] = {
+ &icl_uncore_cbox,
+ &snb_uncore_arb,
+ &icl_uncore_clockbox,
+ NULL,
+};
+
+static void rkl_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0)
+ wrmsrl(SKL_UNC_PERF_GLOBAL_CTL, SNB_UNC_GLOBAL_CTL_EN);
+}
+
+void tgl_uncore_cpu_init(void)
+{
+ uncore_msr_uncores = tgl_msr_uncores;
+ icl_uncore_cbox.num_boxes = icl_get_cbox_num();
+ icl_uncore_cbox.ops = &skl_uncore_msr_ops;
+ icl_uncore_clockbox.ops = &skl_uncore_msr_ops;
+ snb_uncore_arb.ops = &skl_uncore_msr_ops;
+ skl_uncore_msr_ops.init_box = rkl_uncore_msr_init_box;
+}
+
+static void adl_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0)
+ wrmsrl(ADL_UNC_PERF_GLOBAL_CTL, SNB_UNC_GLOBAL_CTL_EN);
+}
+
+static void adl_uncore_msr_enable_box(struct intel_uncore_box *box)
+{
+ wrmsrl(ADL_UNC_PERF_GLOBAL_CTL, SNB_UNC_GLOBAL_CTL_EN);
+}
+
+static void adl_uncore_msr_disable_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0)
+ wrmsrl(ADL_UNC_PERF_GLOBAL_CTL, 0);
+}
+
+static void adl_uncore_msr_exit_box(struct intel_uncore_box *box)
+{
+ if (box->pmu->pmu_idx == 0)
+ wrmsrl(ADL_UNC_PERF_GLOBAL_CTL, 0);
+}
+
+static struct intel_uncore_ops adl_uncore_msr_ops = {
+ .init_box = adl_uncore_msr_init_box,
+ .enable_box = adl_uncore_msr_enable_box,
+ .disable_box = adl_uncore_msr_disable_box,
+ .exit_box = adl_uncore_msr_exit_box,
+ .disable_event = snb_uncore_msr_disable_event,
+ .enable_event = snb_uncore_msr_enable_event,
+ .read_counter = uncore_msr_read_counter,
+};
+
+static struct attribute *adl_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_threshold.attr,
+ NULL,
+};
+
+static const struct attribute_group adl_uncore_format_group = {
+ .name = "format",
+ .attrs = adl_uncore_formats_attr,
+};
+
+static struct intel_uncore_type adl_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 2,
+ .perf_ctr_bits = 44,
+ .perf_ctr = ADL_UNC_CBO_0_PER_CTR0,
+ .event_ctl = ADL_UNC_CBO_0_PERFEVTSEL0,
+ .event_mask = ADL_UNC_RAW_EVENT_MASK,
+ .msr_offset = ICL_UNC_CBO_MSR_OFFSET,
+ .ops = &adl_uncore_msr_ops,
+ .format_group = &adl_uncore_format_group,
+};
+
+static struct intel_uncore_type adl_uncore_arb = {
+ .name = "arb",
+ .num_counters = 2,
+ .num_boxes = 2,
+ .perf_ctr_bits = 44,
+ .perf_ctr = ADL_UNC_ARB_PER_CTR0,
+ .event_ctl = ADL_UNC_ARB_PERFEVTSEL0,
+ .event_mask = SNB_UNC_RAW_EVENT_MASK,
+ .msr_offset = ADL_UNC_ARB_MSR_OFFSET,
+ .constraints = snb_uncore_arb_constraints,
+ .ops = &adl_uncore_msr_ops,
+ .format_group = &snb_uncore_format_group,
+};
+
+static struct intel_uncore_type adl_uncore_clockbox = {
+ .name = "clock",
+ .num_counters = 1,
+ .num_boxes = 1,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = ADL_UNC_FIXED_CTR,
+ .fixed_ctl = ADL_UNC_FIXED_CTR_CTRL,
+ .single_fixed = 1,
+ .event_mask = SNB_UNC_CTL_EV_SEL_MASK,
+ .format_group = &icl_uncore_clock_format_group,
+ .ops = &adl_uncore_msr_ops,
+ .event_descs = icl_uncore_events,
+};
+
+static struct intel_uncore_type *adl_msr_uncores[] = {
+ &adl_uncore_cbox,
+ &adl_uncore_arb,
+ &adl_uncore_clockbox,
+ NULL,
+};
+
+void adl_uncore_cpu_init(void)
+{
+ adl_uncore_cbox.num_boxes = icl_get_cbox_num();
+ uncore_msr_uncores = adl_msr_uncores;
+}
+
+static struct intel_uncore_type mtl_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 2,
+ .perf_ctr_bits = 48,
+ .perf_ctr = MTL_UNC_CBO_0_PER_CTR0,
+ .event_ctl = MTL_UNC_CBO_0_PERFEVTSEL0,
+ .event_mask = ADL_UNC_RAW_EVENT_MASK,
+ .msr_offset = SNB_UNC_CBO_MSR_OFFSET,
+ .ops = &icl_uncore_msr_ops,
+ .format_group = &adl_uncore_format_group,
+};
+
+static struct intel_uncore_type mtl_uncore_hac_arb = {
+ .name = "hac_arb",
+ .num_counters = 2,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .perf_ctr = MTL_UNC_HAC_ARB_CTR,
+ .event_ctl = MTL_UNC_HAC_ARB_CTRL,
+ .event_mask = ADL_UNC_RAW_EVENT_MASK,
+ .msr_offset = SNB_UNC_CBO_MSR_OFFSET,
+ .ops = &icl_uncore_msr_ops,
+ .format_group = &adl_uncore_format_group,
+};
+
+static struct intel_uncore_type mtl_uncore_arb = {
+ .name = "arb",
+ .num_counters = 2,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .perf_ctr = MTL_UNC_ARB_CTR,
+ .event_ctl = MTL_UNC_ARB_CTRL,
+ .event_mask = ADL_UNC_RAW_EVENT_MASK,
+ .msr_offset = SNB_UNC_CBO_MSR_OFFSET,
+ .ops = &icl_uncore_msr_ops,
+ .format_group = &adl_uncore_format_group,
+};
+
+static struct intel_uncore_type mtl_uncore_hac_cbox = {
+ .name = "hac_cbox",
+ .num_counters = 2,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .perf_ctr = MTL_UNC_HBO_CTR,
+ .event_ctl = MTL_UNC_HBO_CTRL,
+ .event_mask = ADL_UNC_RAW_EVENT_MASK,
+ .msr_offset = SNB_UNC_CBO_MSR_OFFSET,
+ .ops = &icl_uncore_msr_ops,
+ .format_group = &adl_uncore_format_group,
+};
+
+static void mtl_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+ wrmsrl(uncore_msr_box_ctl(box), SNB_UNC_GLOBAL_CTL_EN);
+}
+
+static struct intel_uncore_ops mtl_uncore_msr_ops = {
+ .init_box = mtl_uncore_msr_init_box,
+ .disable_event = snb_uncore_msr_disable_event,
+ .enable_event = snb_uncore_msr_enable_event,
+ .read_counter = uncore_msr_read_counter,
+};
+
+static struct intel_uncore_type mtl_uncore_cncu = {
+ .name = "cncu",
+ .num_counters = 1,
+ .num_boxes = 1,
+ .box_ctl = MTL_UNC_CNCU_BOX_CTL,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = MTL_UNC_CNCU_FIXED_CTR,
+ .fixed_ctl = MTL_UNC_CNCU_FIXED_CTRL,
+ .single_fixed = 1,
+ .event_mask = SNB_UNC_CTL_EV_SEL_MASK,
+ .format_group = &icl_uncore_clock_format_group,
+ .ops = &mtl_uncore_msr_ops,
+ .event_descs = icl_uncore_events,
+};
+
+static struct intel_uncore_type mtl_uncore_sncu = {
+ .name = "sncu",
+ .num_counters = 1,
+ .num_boxes = 1,
+ .box_ctl = MTL_UNC_SNCU_BOX_CTL,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = MTL_UNC_SNCU_FIXED_CTR,
+ .fixed_ctl = MTL_UNC_SNCU_FIXED_CTRL,
+ .single_fixed = 1,
+ .event_mask = SNB_UNC_CTL_EV_SEL_MASK,
+ .format_group = &icl_uncore_clock_format_group,
+ .ops = &mtl_uncore_msr_ops,
+ .event_descs = icl_uncore_events,
+};
+
+static struct intel_uncore_type *mtl_msr_uncores[] = {
+ &mtl_uncore_cbox,
+ &mtl_uncore_hac_arb,
+ &mtl_uncore_arb,
+ &mtl_uncore_hac_cbox,
+ &mtl_uncore_cncu,
+ &mtl_uncore_sncu,
+ NULL
+};
+
+void mtl_uncore_cpu_init(void)
+{
+ mtl_uncore_cbox.num_boxes = icl_get_cbox_num();
+ uncore_msr_uncores = mtl_msr_uncores;
+}
+
+enum {
+ SNB_PCI_UNCORE_IMC,
+};
+
+static struct uncore_event_desc snb_uncore_imc_events[] = {
+ INTEL_UNCORE_EVENT_DESC(data_reads, "event=0x01"),
+ INTEL_UNCORE_EVENT_DESC(data_reads.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(data_reads.unit, "MiB"),
+
+ INTEL_UNCORE_EVENT_DESC(data_writes, "event=0x02"),
+ INTEL_UNCORE_EVENT_DESC(data_writes.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(data_writes.unit, "MiB"),
+
+ INTEL_UNCORE_EVENT_DESC(gt_requests, "event=0x03"),
+ INTEL_UNCORE_EVENT_DESC(gt_requests.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(gt_requests.unit, "MiB"),
+
+ INTEL_UNCORE_EVENT_DESC(ia_requests, "event=0x04"),
+ INTEL_UNCORE_EVENT_DESC(ia_requests.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(ia_requests.unit, "MiB"),
+
+ INTEL_UNCORE_EVENT_DESC(io_requests, "event=0x05"),
+ INTEL_UNCORE_EVENT_DESC(io_requests.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(io_requests.unit, "MiB"),
+
+ { /* end: all zeroes */ },
+};
+
+#define SNB_UNCORE_PCI_IMC_EVENT_MASK 0xff
+#define SNB_UNCORE_PCI_IMC_BAR_OFFSET 0x48
+
+/* page size multiple covering all config regs */
+#define SNB_UNCORE_PCI_IMC_MAP_SIZE 0x6000
+
+#define SNB_UNCORE_PCI_IMC_DATA_READS 0x1
+#define SNB_UNCORE_PCI_IMC_DATA_READS_BASE 0x5050
+#define SNB_UNCORE_PCI_IMC_DATA_WRITES 0x2
+#define SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE 0x5054
+#define SNB_UNCORE_PCI_IMC_CTR_BASE SNB_UNCORE_PCI_IMC_DATA_READS_BASE
+
+/* BW break down- legacy counters */
+#define SNB_UNCORE_PCI_IMC_GT_REQUESTS 0x3
+#define SNB_UNCORE_PCI_IMC_GT_REQUESTS_BASE 0x5040
+#define SNB_UNCORE_PCI_IMC_IA_REQUESTS 0x4
+#define SNB_UNCORE_PCI_IMC_IA_REQUESTS_BASE 0x5044
+#define SNB_UNCORE_PCI_IMC_IO_REQUESTS 0x5
+#define SNB_UNCORE_PCI_IMC_IO_REQUESTS_BASE 0x5048
+
+enum perf_snb_uncore_imc_freerunning_types {
+ SNB_PCI_UNCORE_IMC_DATA_READS = 0,
+ SNB_PCI_UNCORE_IMC_DATA_WRITES,
+ SNB_PCI_UNCORE_IMC_GT_REQUESTS,
+ SNB_PCI_UNCORE_IMC_IA_REQUESTS,
+ SNB_PCI_UNCORE_IMC_IO_REQUESTS,
+
+ SNB_PCI_UNCORE_IMC_FREERUNNING_TYPE_MAX,
+};
+
+static struct freerunning_counters snb_uncore_imc_freerunning[] = {
+ [SNB_PCI_UNCORE_IMC_DATA_READS] = { SNB_UNCORE_PCI_IMC_DATA_READS_BASE,
+ 0x0, 0x0, 1, 32 },
+ [SNB_PCI_UNCORE_IMC_DATA_WRITES] = { SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE,
+ 0x0, 0x0, 1, 32 },
+ [SNB_PCI_UNCORE_IMC_GT_REQUESTS] = { SNB_UNCORE_PCI_IMC_GT_REQUESTS_BASE,
+ 0x0, 0x0, 1, 32 },
+ [SNB_PCI_UNCORE_IMC_IA_REQUESTS] = { SNB_UNCORE_PCI_IMC_IA_REQUESTS_BASE,
+ 0x0, 0x0, 1, 32 },
+ [SNB_PCI_UNCORE_IMC_IO_REQUESTS] = { SNB_UNCORE_PCI_IMC_IO_REQUESTS_BASE,
+ 0x0, 0x0, 1, 32 },
+};
+
+static struct attribute *snb_uncore_imc_formats_attr[] = {
+ &format_attr_event.attr,
+ NULL,
+};
+
+static const struct attribute_group snb_uncore_imc_format_group = {
+ .name = "format",
+ .attrs = snb_uncore_imc_formats_attr,
+};
+
+static void snb_uncore_imc_init_box(struct intel_uncore_box *box)
+{
+ struct intel_uncore_type *type = box->pmu->type;
+ struct pci_dev *pdev = box->pci_dev;
+ int where = SNB_UNCORE_PCI_IMC_BAR_OFFSET;
+ resource_size_t addr;
+ u32 pci_dword;
+
+ pci_read_config_dword(pdev, where, &pci_dword);
+ addr = pci_dword;
+
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ pci_read_config_dword(pdev, where + 4, &pci_dword);
+ addr |= ((resource_size_t)pci_dword << 32);
+#endif
+
+ addr &= ~(PAGE_SIZE - 1);
+
+ box->io_addr = ioremap(addr, type->mmio_map_size);
+ if (!box->io_addr)
+ pr_warn("perf uncore: Failed to ioremap for %s.\n", type->name);
+
+ box->hrtimer_duration = UNCORE_SNB_IMC_HRTIMER_INTERVAL;
+}
+
+static void snb_uncore_imc_enable_box(struct intel_uncore_box *box)
+{}
+
+static void snb_uncore_imc_disable_box(struct intel_uncore_box *box)
+{}
+
+static void snb_uncore_imc_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{}
+
+static void snb_uncore_imc_disable_event(struct intel_uncore_box *box, struct perf_event *event)
+{}
+
+/*
+ * Keep the custom event_init() function compatible with old event
+ * encoding for free running counters.
+ */
+static int snb_uncore_imc_event_init(struct perf_event *event)
+{
+ struct intel_uncore_pmu *pmu;
+ struct intel_uncore_box *box;
+ struct hw_perf_event *hwc = &event->hw;
+ u64 cfg = event->attr.config & SNB_UNCORE_PCI_IMC_EVENT_MASK;
+ int idx, base;
+
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ pmu = uncore_event_to_pmu(event);
+ /* no device found for this pmu */
+ if (pmu->func_id < 0)
+ return -ENOENT;
+
+ /* Sampling not supported yet */
+ if (hwc->sample_period)
+ return -EINVAL;
+
+ /* unsupported modes and filters */
+ if (event->attr.sample_period) /* no sampling */
+ return -EINVAL;
+
+ /*
+ * Place all uncore events for a particular physical package
+ * onto a single cpu
+ */
+ if (event->cpu < 0)
+ return -EINVAL;
+
+ /* check only supported bits are set */
+ if (event->attr.config & ~SNB_UNCORE_PCI_IMC_EVENT_MASK)
+ return -EINVAL;
+
+ box = uncore_pmu_to_box(pmu, event->cpu);
+ if (!box || box->cpu < 0)
+ return -EINVAL;
+
+ event->cpu = box->cpu;
+ event->pmu_private = box;
+
+ event->event_caps |= PERF_EV_CAP_READ_ACTIVE_PKG;
+
+ event->hw.idx = -1;
+ event->hw.last_tag = ~0ULL;
+ event->hw.extra_reg.idx = EXTRA_REG_NONE;
+ event->hw.branch_reg.idx = EXTRA_REG_NONE;
+ /*
+ * check event is known (whitelist, determines counter)
+ */
+ switch (cfg) {
+ case SNB_UNCORE_PCI_IMC_DATA_READS:
+ base = SNB_UNCORE_PCI_IMC_DATA_READS_BASE;
+ idx = UNCORE_PMC_IDX_FREERUNNING;
+ break;
+ case SNB_UNCORE_PCI_IMC_DATA_WRITES:
+ base = SNB_UNCORE_PCI_IMC_DATA_WRITES_BASE;
+ idx = UNCORE_PMC_IDX_FREERUNNING;
+ break;
+ case SNB_UNCORE_PCI_IMC_GT_REQUESTS:
+ base = SNB_UNCORE_PCI_IMC_GT_REQUESTS_BASE;
+ idx = UNCORE_PMC_IDX_FREERUNNING;
+ break;
+ case SNB_UNCORE_PCI_IMC_IA_REQUESTS:
+ base = SNB_UNCORE_PCI_IMC_IA_REQUESTS_BASE;
+ idx = UNCORE_PMC_IDX_FREERUNNING;
+ break;
+ case SNB_UNCORE_PCI_IMC_IO_REQUESTS:
+ base = SNB_UNCORE_PCI_IMC_IO_REQUESTS_BASE;
+ idx = UNCORE_PMC_IDX_FREERUNNING;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* must be done before validate_group */
+ event->hw.event_base = base;
+ event->hw.idx = idx;
+
+ /* Convert to standard encoding format for freerunning counters */
+ event->hw.config = ((cfg - 1) << 8) | 0x10ff;
+
+ /* no group validation needed, we have free running counters */
+
+ return 0;
+}
+
+static int snb_uncore_imc_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ return 0;
+}
+
+int snb_pci2phy_map_init(int devid)
+{
+ struct pci_dev *dev = NULL;
+ struct pci2phy_map *map;
+ int bus, segment;
+
+ dev = pci_get_device(PCI_VENDOR_ID_INTEL, devid, dev);
+ if (!dev)
+ return -ENOTTY;
+
+ bus = dev->bus->number;
+ segment = pci_domain_nr(dev->bus);
+
+ raw_spin_lock(&pci2phy_map_lock);
+ map = __find_pci2phy_map(segment);
+ if (!map) {
+ raw_spin_unlock(&pci2phy_map_lock);
+ pci_dev_put(dev);
+ return -ENOMEM;
+ }
+ map->pbus_to_dieid[bus] = 0;
+ raw_spin_unlock(&pci2phy_map_lock);
+
+ pci_dev_put(dev);
+
+ return 0;
+}
+
+static u64 snb_uncore_imc_read_counter(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ /*
+ * SNB IMC counters are 32-bit and are laid out back to back
+ * in MMIO space. Therefore we must use a 32-bit accessor function
+ * using readq() from uncore_mmio_read_counter() causes problems
+ * because it is reading 64-bit at a time. This is okay for the
+ * uncore_perf_event_update() function because it drops the upper
+ * 32-bits but not okay for plain uncore_read_counter() as invoked
+ * in uncore_pmu_event_start().
+ */
+ return (u64)readl(box->io_addr + hwc->event_base);
+}
+
+static struct pmu snb_uncore_imc_pmu = {
+ .task_ctx_nr = perf_invalid_context,
+ .event_init = snb_uncore_imc_event_init,
+ .add = uncore_pmu_event_add,
+ .del = uncore_pmu_event_del,
+ .start = uncore_pmu_event_start,
+ .stop = uncore_pmu_event_stop,
+ .read = uncore_pmu_event_read,
+ .capabilities = PERF_PMU_CAP_NO_EXCLUDE,
+};
+
+static struct intel_uncore_ops snb_uncore_imc_ops = {
+ .init_box = snb_uncore_imc_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .enable_box = snb_uncore_imc_enable_box,
+ .disable_box = snb_uncore_imc_disable_box,
+ .disable_event = snb_uncore_imc_disable_event,
+ .enable_event = snb_uncore_imc_enable_event,
+ .hw_config = snb_uncore_imc_hw_config,
+ .read_counter = snb_uncore_imc_read_counter,
+};
+
+static struct intel_uncore_type snb_uncore_imc = {
+ .name = "imc",
+ .num_counters = 5,
+ .num_boxes = 1,
+ .num_freerunning_types = SNB_PCI_UNCORE_IMC_FREERUNNING_TYPE_MAX,
+ .mmio_map_size = SNB_UNCORE_PCI_IMC_MAP_SIZE,
+ .freerunning = snb_uncore_imc_freerunning,
+ .event_descs = snb_uncore_imc_events,
+ .format_group = &snb_uncore_imc_format_group,
+ .ops = &snb_uncore_imc_ops,
+ .pmu = &snb_uncore_imc_pmu,
+};
+
+static struct intel_uncore_type *snb_pci_uncores[] = {
+ [SNB_PCI_UNCORE_IMC] = &snb_uncore_imc,
+ NULL,
+};
+
+static const struct pci_device_id snb_uncore_pci_ids[] = {
+ IMC_UNCORE_DEV(SNB),
+ { /* end: all zeroes */ },
+};
+
+static const struct pci_device_id ivb_uncore_pci_ids[] = {
+ IMC_UNCORE_DEV(IVB),
+ IMC_UNCORE_DEV(IVB_E3),
+ { /* end: all zeroes */ },
+};
+
+static const struct pci_device_id hsw_uncore_pci_ids[] = {
+ IMC_UNCORE_DEV(HSW),
+ IMC_UNCORE_DEV(HSW_U),
+ { /* end: all zeroes */ },
+};
+
+static const struct pci_device_id bdw_uncore_pci_ids[] = {
+ IMC_UNCORE_DEV(BDW),
+ { /* end: all zeroes */ },
+};
+
+static const struct pci_device_id skl_uncore_pci_ids[] = {
+ IMC_UNCORE_DEV(SKL_Y),
+ IMC_UNCORE_DEV(SKL_U),
+ IMC_UNCORE_DEV(SKL_HD),
+ IMC_UNCORE_DEV(SKL_HQ),
+ IMC_UNCORE_DEV(SKL_SD),
+ IMC_UNCORE_DEV(SKL_SQ),
+ IMC_UNCORE_DEV(SKL_E3),
+ IMC_UNCORE_DEV(KBL_Y),
+ IMC_UNCORE_DEV(KBL_U),
+ IMC_UNCORE_DEV(KBL_UQ),
+ IMC_UNCORE_DEV(KBL_SD),
+ IMC_UNCORE_DEV(KBL_SQ),
+ IMC_UNCORE_DEV(KBL_HQ),
+ IMC_UNCORE_DEV(KBL_WQ),
+ IMC_UNCORE_DEV(CFL_2U),
+ IMC_UNCORE_DEV(CFL_4U),
+ IMC_UNCORE_DEV(CFL_4H),
+ IMC_UNCORE_DEV(CFL_6H),
+ IMC_UNCORE_DEV(CFL_2S_D),
+ IMC_UNCORE_DEV(CFL_4S_D),
+ IMC_UNCORE_DEV(CFL_6S_D),
+ IMC_UNCORE_DEV(CFL_8S_D),
+ IMC_UNCORE_DEV(CFL_4S_W),
+ IMC_UNCORE_DEV(CFL_6S_W),
+ IMC_UNCORE_DEV(CFL_8S_W),
+ IMC_UNCORE_DEV(CFL_4S_S),
+ IMC_UNCORE_DEV(CFL_6S_S),
+ IMC_UNCORE_DEV(CFL_8S_S),
+ IMC_UNCORE_DEV(AML_YD),
+ IMC_UNCORE_DEV(AML_YQ),
+ IMC_UNCORE_DEV(WHL_UQ),
+ IMC_UNCORE_DEV(WHL_4_UQ),
+ IMC_UNCORE_DEV(WHL_UD),
+ IMC_UNCORE_DEV(CML_H1),
+ IMC_UNCORE_DEV(CML_H2),
+ IMC_UNCORE_DEV(CML_H3),
+ IMC_UNCORE_DEV(CML_U1),
+ IMC_UNCORE_DEV(CML_U2),
+ IMC_UNCORE_DEV(CML_U3),
+ IMC_UNCORE_DEV(CML_S1),
+ IMC_UNCORE_DEV(CML_S2),
+ IMC_UNCORE_DEV(CML_S3),
+ IMC_UNCORE_DEV(CML_S4),
+ IMC_UNCORE_DEV(CML_S5),
+ { /* end: all zeroes */ },
+};
+
+static const struct pci_device_id icl_uncore_pci_ids[] = {
+ IMC_UNCORE_DEV(ICL_U),
+ IMC_UNCORE_DEV(ICL_U2),
+ IMC_UNCORE_DEV(RKL_1),
+ IMC_UNCORE_DEV(RKL_2),
+ { /* end: all zeroes */ },
+};
+
+static struct pci_driver snb_uncore_pci_driver = {
+ .name = "snb_uncore",
+ .id_table = snb_uncore_pci_ids,
+};
+
+static struct pci_driver ivb_uncore_pci_driver = {
+ .name = "ivb_uncore",
+ .id_table = ivb_uncore_pci_ids,
+};
+
+static struct pci_driver hsw_uncore_pci_driver = {
+ .name = "hsw_uncore",
+ .id_table = hsw_uncore_pci_ids,
+};
+
+static struct pci_driver bdw_uncore_pci_driver = {
+ .name = "bdw_uncore",
+ .id_table = bdw_uncore_pci_ids,
+};
+
+static struct pci_driver skl_uncore_pci_driver = {
+ .name = "skl_uncore",
+ .id_table = skl_uncore_pci_ids,
+};
+
+static struct pci_driver icl_uncore_pci_driver = {
+ .name = "icl_uncore",
+ .id_table = icl_uncore_pci_ids,
+};
+
+struct imc_uncore_pci_dev {
+ __u32 pci_id;
+ struct pci_driver *driver;
+};
+#define IMC_DEV(a, d) \
+ { .pci_id = PCI_DEVICE_ID_INTEL_##a, .driver = (d) }
+
+static const struct imc_uncore_pci_dev desktop_imc_pci_ids[] = {
+ IMC_DEV(SNB_IMC, &snb_uncore_pci_driver),
+ IMC_DEV(IVB_IMC, &ivb_uncore_pci_driver), /* 3rd Gen Core processor */
+ IMC_DEV(IVB_E3_IMC, &ivb_uncore_pci_driver), /* Xeon E3-1200 v2/3rd Gen Core processor */
+ IMC_DEV(HSW_IMC, &hsw_uncore_pci_driver), /* 4th Gen Core Processor */
+ IMC_DEV(HSW_U_IMC, &hsw_uncore_pci_driver), /* 4th Gen Core ULT Mobile Processor */
+ IMC_DEV(BDW_IMC, &bdw_uncore_pci_driver), /* 5th Gen Core U */
+ IMC_DEV(SKL_Y_IMC, &skl_uncore_pci_driver), /* 6th Gen Core Y */
+ IMC_DEV(SKL_U_IMC, &skl_uncore_pci_driver), /* 6th Gen Core U */
+ IMC_DEV(SKL_HD_IMC, &skl_uncore_pci_driver), /* 6th Gen Core H Dual Core */
+ IMC_DEV(SKL_HQ_IMC, &skl_uncore_pci_driver), /* 6th Gen Core H Quad Core */
+ IMC_DEV(SKL_SD_IMC, &skl_uncore_pci_driver), /* 6th Gen Core S Dual Core */
+ IMC_DEV(SKL_SQ_IMC, &skl_uncore_pci_driver), /* 6th Gen Core S Quad Core */
+ IMC_DEV(SKL_E3_IMC, &skl_uncore_pci_driver), /* Xeon E3 V5 Gen Core processor */
+ IMC_DEV(KBL_Y_IMC, &skl_uncore_pci_driver), /* 7th Gen Core Y */
+ IMC_DEV(KBL_U_IMC, &skl_uncore_pci_driver), /* 7th Gen Core U */
+ IMC_DEV(KBL_UQ_IMC, &skl_uncore_pci_driver), /* 7th Gen Core U Quad Core */
+ IMC_DEV(KBL_SD_IMC, &skl_uncore_pci_driver), /* 7th Gen Core S Dual Core */
+ IMC_DEV(KBL_SQ_IMC, &skl_uncore_pci_driver), /* 7th Gen Core S Quad Core */
+ IMC_DEV(KBL_HQ_IMC, &skl_uncore_pci_driver), /* 7th Gen Core H Quad Core */
+ IMC_DEV(KBL_WQ_IMC, &skl_uncore_pci_driver), /* 7th Gen Core S 4 cores Work Station */
+ IMC_DEV(CFL_2U_IMC, &skl_uncore_pci_driver), /* 8th Gen Core U 2 Cores */
+ IMC_DEV(CFL_4U_IMC, &skl_uncore_pci_driver), /* 8th Gen Core U 4 Cores */
+ IMC_DEV(CFL_4H_IMC, &skl_uncore_pci_driver), /* 8th Gen Core H 4 Cores */
+ IMC_DEV(CFL_6H_IMC, &skl_uncore_pci_driver), /* 8th Gen Core H 6 Cores */
+ IMC_DEV(CFL_2S_D_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 2 Cores Desktop */
+ IMC_DEV(CFL_4S_D_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 4 Cores Desktop */
+ IMC_DEV(CFL_6S_D_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 6 Cores Desktop */
+ IMC_DEV(CFL_8S_D_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 8 Cores Desktop */
+ IMC_DEV(CFL_4S_W_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 4 Cores Work Station */
+ IMC_DEV(CFL_6S_W_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 6 Cores Work Station */
+ IMC_DEV(CFL_8S_W_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 8 Cores Work Station */
+ IMC_DEV(CFL_4S_S_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 4 Cores Server */
+ IMC_DEV(CFL_6S_S_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 6 Cores Server */
+ IMC_DEV(CFL_8S_S_IMC, &skl_uncore_pci_driver), /* 8th Gen Core S 8 Cores Server */
+ IMC_DEV(AML_YD_IMC, &skl_uncore_pci_driver), /* 8th Gen Core Y Mobile Dual Core */
+ IMC_DEV(AML_YQ_IMC, &skl_uncore_pci_driver), /* 8th Gen Core Y Mobile Quad Core */
+ IMC_DEV(WHL_UQ_IMC, &skl_uncore_pci_driver), /* 8th Gen Core U Mobile Quad Core */
+ IMC_DEV(WHL_4_UQ_IMC, &skl_uncore_pci_driver), /* 8th Gen Core U Mobile Quad Core */
+ IMC_DEV(WHL_UD_IMC, &skl_uncore_pci_driver), /* 8th Gen Core U Mobile Dual Core */
+ IMC_DEV(CML_H1_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(CML_H2_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(CML_H3_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(CML_U1_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(CML_U2_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(CML_U3_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(CML_S1_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(CML_S2_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(CML_S3_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(CML_S4_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(CML_S5_IMC, &skl_uncore_pci_driver),
+ IMC_DEV(ICL_U_IMC, &icl_uncore_pci_driver), /* 10th Gen Core Mobile */
+ IMC_DEV(ICL_U2_IMC, &icl_uncore_pci_driver), /* 10th Gen Core Mobile */
+ IMC_DEV(RKL_1_IMC, &icl_uncore_pci_driver),
+ IMC_DEV(RKL_2_IMC, &icl_uncore_pci_driver),
+ { /* end marker */ }
+};
+
+
+#define for_each_imc_pci_id(x, t) \
+ for (x = (t); (x)->pci_id; x++)
+
+static struct pci_driver *imc_uncore_find_dev(void)
+{
+ const struct imc_uncore_pci_dev *p;
+ int ret;
+
+ for_each_imc_pci_id(p, desktop_imc_pci_ids) {
+ ret = snb_pci2phy_map_init(p->pci_id);
+ if (ret == 0)
+ return p->driver;
+ }
+ return NULL;
+}
+
+static int imc_uncore_pci_init(void)
+{
+ struct pci_driver *imc_drv = imc_uncore_find_dev();
+
+ if (!imc_drv)
+ return -ENODEV;
+
+ uncore_pci_uncores = snb_pci_uncores;
+ uncore_pci_driver = imc_drv;
+
+ return 0;
+}
+
+int snb_uncore_pci_init(void)
+{
+ return imc_uncore_pci_init();
+}
+
+int ivb_uncore_pci_init(void)
+{
+ return imc_uncore_pci_init();
+}
+int hsw_uncore_pci_init(void)
+{
+ return imc_uncore_pci_init();
+}
+
+int bdw_uncore_pci_init(void)
+{
+ return imc_uncore_pci_init();
+}
+
+int skl_uncore_pci_init(void)
+{
+ return imc_uncore_pci_init();
+}
+
+/* end of Sandy Bridge uncore support */
+
+/* Nehalem uncore support */
+static void nhm_uncore_msr_disable_box(struct intel_uncore_box *box)
+{
+ wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, 0);
+}
+
+static void nhm_uncore_msr_enable_box(struct intel_uncore_box *box)
+{
+ wrmsrl(NHM_UNC_PERF_GLOBAL_CTL, NHM_UNC_GLOBAL_CTL_EN_PC_ALL | NHM_UNC_GLOBAL_CTL_EN_FC);
+}
+
+static void nhm_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (hwc->idx < UNCORE_PMC_IDX_FIXED)
+ wrmsrl(hwc->config_base, hwc->config | SNB_UNC_CTL_EN);
+ else
+ wrmsrl(hwc->config_base, NHM_UNC_FIXED_CTR_CTL_EN);
+}
+
+static struct attribute *nhm_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_cmask8.attr,
+ NULL,
+};
+
+static const struct attribute_group nhm_uncore_format_group = {
+ .name = "format",
+ .attrs = nhm_uncore_formats_attr,
+};
+
+static struct uncore_event_desc nhm_uncore_events[] = {
+ INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"),
+ INTEL_UNCORE_EVENT_DESC(qmc_writes_full_any, "event=0x2f,umask=0x0f"),
+ INTEL_UNCORE_EVENT_DESC(qmc_normal_reads_any, "event=0x2c,umask=0x0f"),
+ INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_reads, "event=0x20,umask=0x01"),
+ INTEL_UNCORE_EVENT_DESC(qhl_request_ioh_writes, "event=0x20,umask=0x02"),
+ INTEL_UNCORE_EVENT_DESC(qhl_request_remote_reads, "event=0x20,umask=0x04"),
+ INTEL_UNCORE_EVENT_DESC(qhl_request_remote_writes, "event=0x20,umask=0x08"),
+ INTEL_UNCORE_EVENT_DESC(qhl_request_local_reads, "event=0x20,umask=0x10"),
+ INTEL_UNCORE_EVENT_DESC(qhl_request_local_writes, "event=0x20,umask=0x20"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_ops nhm_uncore_msr_ops = {
+ .disable_box = nhm_uncore_msr_disable_box,
+ .enable_box = nhm_uncore_msr_enable_box,
+ .disable_event = snb_uncore_msr_disable_event,
+ .enable_event = nhm_uncore_msr_enable_event,
+ .read_counter = uncore_msr_read_counter,
+};
+
+static struct intel_uncore_type nhm_uncore = {
+ .name = "",
+ .num_counters = 8,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .event_ctl = NHM_UNC_PERFEVTSEL0,
+ .perf_ctr = NHM_UNC_UNCORE_PMC0,
+ .fixed_ctr = NHM_UNC_FIXED_CTR,
+ .fixed_ctl = NHM_UNC_FIXED_CTR_CTRL,
+ .event_mask = NHM_UNC_RAW_EVENT_MASK,
+ .event_descs = nhm_uncore_events,
+ .ops = &nhm_uncore_msr_ops,
+ .format_group = &nhm_uncore_format_group,
+};
+
+static struct intel_uncore_type *nhm_msr_uncores[] = {
+ &nhm_uncore,
+ NULL,
+};
+
+void nhm_uncore_cpu_init(void)
+{
+ uncore_msr_uncores = nhm_msr_uncores;
+}
+
+/* end of Nehalem uncore support */
+
+/* Tiger Lake MMIO uncore support */
+
+static const struct pci_device_id tgl_uncore_pci_ids[] = {
+ IMC_UNCORE_DEV(TGL_U1),
+ IMC_UNCORE_DEV(TGL_U2),
+ IMC_UNCORE_DEV(TGL_U3),
+ IMC_UNCORE_DEV(TGL_U4),
+ IMC_UNCORE_DEV(TGL_H),
+ IMC_UNCORE_DEV(ADL_1),
+ IMC_UNCORE_DEV(ADL_2),
+ IMC_UNCORE_DEV(ADL_3),
+ IMC_UNCORE_DEV(ADL_4),
+ IMC_UNCORE_DEV(ADL_5),
+ IMC_UNCORE_DEV(ADL_6),
+ IMC_UNCORE_DEV(ADL_7),
+ IMC_UNCORE_DEV(ADL_8),
+ IMC_UNCORE_DEV(ADL_9),
+ IMC_UNCORE_DEV(ADL_10),
+ IMC_UNCORE_DEV(ADL_11),
+ IMC_UNCORE_DEV(ADL_12),
+ IMC_UNCORE_DEV(ADL_13),
+ IMC_UNCORE_DEV(ADL_14),
+ IMC_UNCORE_DEV(ADL_15),
+ IMC_UNCORE_DEV(ADL_16),
+ IMC_UNCORE_DEV(ADL_17),
+ IMC_UNCORE_DEV(ADL_18),
+ IMC_UNCORE_DEV(ADL_19),
+ IMC_UNCORE_DEV(ADL_20),
+ IMC_UNCORE_DEV(ADL_21),
+ IMC_UNCORE_DEV(RPL_1),
+ IMC_UNCORE_DEV(RPL_2),
+ IMC_UNCORE_DEV(RPL_3),
+ IMC_UNCORE_DEV(RPL_4),
+ IMC_UNCORE_DEV(RPL_5),
+ IMC_UNCORE_DEV(RPL_6),
+ IMC_UNCORE_DEV(RPL_7),
+ IMC_UNCORE_DEV(RPL_8),
+ IMC_UNCORE_DEV(RPL_9),
+ IMC_UNCORE_DEV(RPL_10),
+ IMC_UNCORE_DEV(RPL_11),
+ IMC_UNCORE_DEV(RPL_12),
+ IMC_UNCORE_DEV(RPL_13),
+ IMC_UNCORE_DEV(RPL_14),
+ IMC_UNCORE_DEV(RPL_15),
+ IMC_UNCORE_DEV(RPL_16),
+ IMC_UNCORE_DEV(RPL_17),
+ IMC_UNCORE_DEV(RPL_18),
+ IMC_UNCORE_DEV(RPL_19),
+ IMC_UNCORE_DEV(RPL_20),
+ IMC_UNCORE_DEV(RPL_21),
+ IMC_UNCORE_DEV(RPL_22),
+ IMC_UNCORE_DEV(RPL_23),
+ IMC_UNCORE_DEV(RPL_24),
+ IMC_UNCORE_DEV(RPL_25),
+ IMC_UNCORE_DEV(MTL_1),
+ IMC_UNCORE_DEV(MTL_2),
+ IMC_UNCORE_DEV(MTL_3),
+ IMC_UNCORE_DEV(MTL_4),
+ IMC_UNCORE_DEV(MTL_5),
+ IMC_UNCORE_DEV(MTL_6),
+ IMC_UNCORE_DEV(MTL_7),
+ IMC_UNCORE_DEV(MTL_8),
+ IMC_UNCORE_DEV(MTL_9),
+ IMC_UNCORE_DEV(MTL_10),
+ IMC_UNCORE_DEV(MTL_11),
+ IMC_UNCORE_DEV(MTL_12),
+ IMC_UNCORE_DEV(MTL_13),
+ { /* end: all zeroes */ }
+};
+
+enum perf_tgl_uncore_imc_freerunning_types {
+ TGL_MMIO_UNCORE_IMC_DATA_TOTAL,
+ TGL_MMIO_UNCORE_IMC_DATA_READ,
+ TGL_MMIO_UNCORE_IMC_DATA_WRITE,
+ TGL_MMIO_UNCORE_IMC_FREERUNNING_TYPE_MAX
+};
+
+static struct freerunning_counters tgl_l_uncore_imc_freerunning[] = {
+ [TGL_MMIO_UNCORE_IMC_DATA_TOTAL] = { 0x5040, 0x0, 0x0, 1, 64 },
+ [TGL_MMIO_UNCORE_IMC_DATA_READ] = { 0x5058, 0x0, 0x0, 1, 64 },
+ [TGL_MMIO_UNCORE_IMC_DATA_WRITE] = { 0x50A0, 0x0, 0x0, 1, 64 },
+};
+
+static struct freerunning_counters tgl_uncore_imc_freerunning[] = {
+ [TGL_MMIO_UNCORE_IMC_DATA_TOTAL] = { 0xd840, 0x0, 0x0, 1, 64 },
+ [TGL_MMIO_UNCORE_IMC_DATA_READ] = { 0xd858, 0x0, 0x0, 1, 64 },
+ [TGL_MMIO_UNCORE_IMC_DATA_WRITE] = { 0xd8A0, 0x0, 0x0, 1, 64 },
+};
+
+static struct uncore_event_desc tgl_uncore_imc_events[] = {
+ INTEL_UNCORE_EVENT_DESC(data_total, "event=0xff,umask=0x10"),
+ INTEL_UNCORE_EVENT_DESC(data_total.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(data_total.unit, "MiB"),
+
+ INTEL_UNCORE_EVENT_DESC(data_read, "event=0xff,umask=0x20"),
+ INTEL_UNCORE_EVENT_DESC(data_read.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(data_read.unit, "MiB"),
+
+ INTEL_UNCORE_EVENT_DESC(data_write, "event=0xff,umask=0x30"),
+ INTEL_UNCORE_EVENT_DESC(data_write.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(data_write.unit, "MiB"),
+
+ { /* end: all zeroes */ }
+};
+
+static struct pci_dev *tgl_uncore_get_mc_dev(void)
+{
+ const struct pci_device_id *ids = tgl_uncore_pci_ids;
+ struct pci_dev *mc_dev = NULL;
+
+ while (ids && ids->vendor) {
+ mc_dev = pci_get_device(PCI_VENDOR_ID_INTEL, ids->device, NULL);
+ if (mc_dev)
+ return mc_dev;
+ ids++;
+ }
+
+ return mc_dev;
+}
+
+#define TGL_UNCORE_MMIO_IMC_MEM_OFFSET 0x10000
+#define TGL_UNCORE_PCI_IMC_MAP_SIZE 0xe000
+
+static void __uncore_imc_init_box(struct intel_uncore_box *box,
+ unsigned int base_offset)
+{
+ struct pci_dev *pdev = tgl_uncore_get_mc_dev();
+ struct intel_uncore_pmu *pmu = box->pmu;
+ struct intel_uncore_type *type = pmu->type;
+ resource_size_t addr;
+ u32 mch_bar;
+
+ if (!pdev) {
+ pr_warn("perf uncore: Cannot find matched IMC device.\n");
+ return;
+ }
+
+ pci_read_config_dword(pdev, SNB_UNCORE_PCI_IMC_BAR_OFFSET, &mch_bar);
+ /* MCHBAR is disabled */
+ if (!(mch_bar & BIT(0))) {
+ pr_warn("perf uncore: MCHBAR is disabled. Failed to map IMC free-running counters.\n");
+ pci_dev_put(pdev);
+ return;
+ }
+ mch_bar &= ~BIT(0);
+ addr = (resource_size_t)(mch_bar + TGL_UNCORE_MMIO_IMC_MEM_OFFSET * pmu->pmu_idx);
+
+#ifdef CONFIG_PHYS_ADDR_T_64BIT
+ pci_read_config_dword(pdev, SNB_UNCORE_PCI_IMC_BAR_OFFSET + 4, &mch_bar);
+ addr |= ((resource_size_t)mch_bar << 32);
+#endif
+
+ addr += base_offset;
+ box->io_addr = ioremap(addr, type->mmio_map_size);
+ if (!box->io_addr)
+ pr_warn("perf uncore: Failed to ioremap for %s.\n", type->name);
+
+ pci_dev_put(pdev);
+}
+
+static void tgl_uncore_imc_freerunning_init_box(struct intel_uncore_box *box)
+{
+ __uncore_imc_init_box(box, 0);
+}
+
+static struct intel_uncore_ops tgl_uncore_imc_freerunning_ops = {
+ .init_box = tgl_uncore_imc_freerunning_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .read_counter = uncore_mmio_read_counter,
+ .hw_config = uncore_freerunning_hw_config,
+};
+
+static struct attribute *tgl_uncore_imc_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ NULL
+};
+
+static const struct attribute_group tgl_uncore_imc_format_group = {
+ .name = "format",
+ .attrs = tgl_uncore_imc_formats_attr,
+};
+
+static struct intel_uncore_type tgl_uncore_imc_free_running = {
+ .name = "imc_free_running",
+ .num_counters = 3,
+ .num_boxes = 2,
+ .num_freerunning_types = TGL_MMIO_UNCORE_IMC_FREERUNNING_TYPE_MAX,
+ .mmio_map_size = TGL_UNCORE_PCI_IMC_MAP_SIZE,
+ .freerunning = tgl_uncore_imc_freerunning,
+ .ops = &tgl_uncore_imc_freerunning_ops,
+ .event_descs = tgl_uncore_imc_events,
+ .format_group = &tgl_uncore_imc_format_group,
+};
+
+static struct intel_uncore_type *tgl_mmio_uncores[] = {
+ &tgl_uncore_imc_free_running,
+ NULL
+};
+
+void tgl_l_uncore_mmio_init(void)
+{
+ tgl_uncore_imc_free_running.freerunning = tgl_l_uncore_imc_freerunning;
+ uncore_mmio_uncores = tgl_mmio_uncores;
+}
+
+void tgl_uncore_mmio_init(void)
+{
+ uncore_mmio_uncores = tgl_mmio_uncores;
+}
+
+/* end of Tiger Lake MMIO uncore support */
+
+/* Alder Lake MMIO uncore support */
+#define ADL_UNCORE_IMC_BASE 0xd900
+#define ADL_UNCORE_IMC_MAP_SIZE 0x200
+#define ADL_UNCORE_IMC_CTR 0xe8
+#define ADL_UNCORE_IMC_CTRL 0xd0
+#define ADL_UNCORE_IMC_GLOBAL_CTL 0xc0
+#define ADL_UNCORE_IMC_BOX_CTL 0xc4
+#define ADL_UNCORE_IMC_FREERUNNING_BASE 0xd800
+#define ADL_UNCORE_IMC_FREERUNNING_MAP_SIZE 0x100
+
+#define ADL_UNCORE_IMC_CTL_FRZ (1 << 0)
+#define ADL_UNCORE_IMC_CTL_RST_CTRL (1 << 1)
+#define ADL_UNCORE_IMC_CTL_RST_CTRS (1 << 2)
+#define ADL_UNCORE_IMC_CTL_INT (ADL_UNCORE_IMC_CTL_RST_CTRL | \
+ ADL_UNCORE_IMC_CTL_RST_CTRS)
+
+static void adl_uncore_imc_init_box(struct intel_uncore_box *box)
+{
+ __uncore_imc_init_box(box, ADL_UNCORE_IMC_BASE);
+
+ /* The global control in MC1 can control both MCs. */
+ if (box->io_addr && (box->pmu->pmu_idx == 1))
+ writel(ADL_UNCORE_IMC_CTL_INT, box->io_addr + ADL_UNCORE_IMC_GLOBAL_CTL);
+}
+
+static void adl_uncore_mmio_disable_box(struct intel_uncore_box *box)
+{
+ if (!box->io_addr)
+ return;
+
+ writel(ADL_UNCORE_IMC_CTL_FRZ, box->io_addr + uncore_mmio_box_ctl(box));
+}
+
+static void adl_uncore_mmio_enable_box(struct intel_uncore_box *box)
+{
+ if (!box->io_addr)
+ return;
+
+ writel(0, box->io_addr + uncore_mmio_box_ctl(box));
+}
+
+static struct intel_uncore_ops adl_uncore_mmio_ops = {
+ .init_box = adl_uncore_imc_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .disable_box = adl_uncore_mmio_disable_box,
+ .enable_box = adl_uncore_mmio_enable_box,
+ .disable_event = intel_generic_uncore_mmio_disable_event,
+ .enable_event = intel_generic_uncore_mmio_enable_event,
+ .read_counter = uncore_mmio_read_counter,
+};
+
+#define ADL_UNC_CTL_CHMASK_MASK 0x00000f00
+#define ADL_UNC_IMC_EVENT_MASK (SNB_UNC_CTL_EV_SEL_MASK | \
+ ADL_UNC_CTL_CHMASK_MASK | \
+ SNB_UNC_CTL_EDGE_DET)
+
+static struct attribute *adl_uncore_imc_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_chmask.attr,
+ &format_attr_edge.attr,
+ NULL,
+};
+
+static const struct attribute_group adl_uncore_imc_format_group = {
+ .name = "format",
+ .attrs = adl_uncore_imc_formats_attr,
+};
+
+static struct intel_uncore_type adl_uncore_imc = {
+ .name = "imc",
+ .num_counters = 5,
+ .num_boxes = 2,
+ .perf_ctr_bits = 64,
+ .perf_ctr = ADL_UNCORE_IMC_CTR,
+ .event_ctl = ADL_UNCORE_IMC_CTRL,
+ .event_mask = ADL_UNC_IMC_EVENT_MASK,
+ .box_ctl = ADL_UNCORE_IMC_BOX_CTL,
+ .mmio_offset = 0,
+ .mmio_map_size = ADL_UNCORE_IMC_MAP_SIZE,
+ .ops = &adl_uncore_mmio_ops,
+ .format_group = &adl_uncore_imc_format_group,
+};
+
+enum perf_adl_uncore_imc_freerunning_types {
+ ADL_MMIO_UNCORE_IMC_DATA_TOTAL,
+ ADL_MMIO_UNCORE_IMC_DATA_READ,
+ ADL_MMIO_UNCORE_IMC_DATA_WRITE,
+ ADL_MMIO_UNCORE_IMC_FREERUNNING_TYPE_MAX
+};
+
+static struct freerunning_counters adl_uncore_imc_freerunning[] = {
+ [ADL_MMIO_UNCORE_IMC_DATA_TOTAL] = { 0x40, 0x0, 0x0, 1, 64 },
+ [ADL_MMIO_UNCORE_IMC_DATA_READ] = { 0x58, 0x0, 0x0, 1, 64 },
+ [ADL_MMIO_UNCORE_IMC_DATA_WRITE] = { 0xA0, 0x0, 0x0, 1, 64 },
+};
+
+static void adl_uncore_imc_freerunning_init_box(struct intel_uncore_box *box)
+{
+ __uncore_imc_init_box(box, ADL_UNCORE_IMC_FREERUNNING_BASE);
+}
+
+static struct intel_uncore_ops adl_uncore_imc_freerunning_ops = {
+ .init_box = adl_uncore_imc_freerunning_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .read_counter = uncore_mmio_read_counter,
+ .hw_config = uncore_freerunning_hw_config,
+};
+
+static struct intel_uncore_type adl_uncore_imc_free_running = {
+ .name = "imc_free_running",
+ .num_counters = 3,
+ .num_boxes = 2,
+ .num_freerunning_types = ADL_MMIO_UNCORE_IMC_FREERUNNING_TYPE_MAX,
+ .mmio_map_size = ADL_UNCORE_IMC_FREERUNNING_MAP_SIZE,
+ .freerunning = adl_uncore_imc_freerunning,
+ .ops = &adl_uncore_imc_freerunning_ops,
+ .event_descs = tgl_uncore_imc_events,
+ .format_group = &tgl_uncore_imc_format_group,
+};
+
+static struct intel_uncore_type *adl_mmio_uncores[] = {
+ &adl_uncore_imc,
+ &adl_uncore_imc_free_running,
+ NULL
+};
+
+void adl_uncore_mmio_init(void)
+{
+ uncore_mmio_uncores = adl_mmio_uncores;
+}
+
+/* end of Alder Lake MMIO uncore support */
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
new file mode 100644
index 000000000000..fa9b209a11fa
--- /dev/null
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -0,0 +1,6553 @@
+// SPDX-License-Identifier: GPL-2.0
+/* SandyBridge-EP/IvyTown uncore support */
+#include "uncore.h"
+#include "uncore_discovery.h"
+
+/* SNB-EP pci bus to socket mapping */
+#define SNBEP_CPUNODEID 0x40
+#define SNBEP_GIDNIDMAP 0x54
+
+/* SNB-EP Box level control */
+#define SNBEP_PMON_BOX_CTL_RST_CTRL (1 << 0)
+#define SNBEP_PMON_BOX_CTL_RST_CTRS (1 << 1)
+#define SNBEP_PMON_BOX_CTL_FRZ (1 << 8)
+#define SNBEP_PMON_BOX_CTL_FRZ_EN (1 << 16)
+#define SNBEP_PMON_BOX_CTL_INT (SNBEP_PMON_BOX_CTL_RST_CTRL | \
+ SNBEP_PMON_BOX_CTL_RST_CTRS | \
+ SNBEP_PMON_BOX_CTL_FRZ_EN)
+/* SNB-EP event control */
+#define SNBEP_PMON_CTL_EV_SEL_MASK 0x000000ff
+#define SNBEP_PMON_CTL_UMASK_MASK 0x0000ff00
+#define SNBEP_PMON_CTL_RST (1 << 17)
+#define SNBEP_PMON_CTL_EDGE_DET (1 << 18)
+#define SNBEP_PMON_CTL_EV_SEL_EXT (1 << 21)
+#define SNBEP_PMON_CTL_EN (1 << 22)
+#define SNBEP_PMON_CTL_INVERT (1 << 23)
+#define SNBEP_PMON_CTL_TRESH_MASK 0xff000000
+#define SNBEP_PMON_RAW_EVENT_MASK (SNBEP_PMON_CTL_EV_SEL_MASK | \
+ SNBEP_PMON_CTL_UMASK_MASK | \
+ SNBEP_PMON_CTL_EDGE_DET | \
+ SNBEP_PMON_CTL_INVERT | \
+ SNBEP_PMON_CTL_TRESH_MASK)
+
+/* SNB-EP Ubox event control */
+#define SNBEP_U_MSR_PMON_CTL_TRESH_MASK 0x1f000000
+#define SNBEP_U_MSR_PMON_RAW_EVENT_MASK \
+ (SNBEP_PMON_CTL_EV_SEL_MASK | \
+ SNBEP_PMON_CTL_UMASK_MASK | \
+ SNBEP_PMON_CTL_EDGE_DET | \
+ SNBEP_PMON_CTL_INVERT | \
+ SNBEP_U_MSR_PMON_CTL_TRESH_MASK)
+
+#define SNBEP_CBO_PMON_CTL_TID_EN (1 << 19)
+#define SNBEP_CBO_MSR_PMON_RAW_EVENT_MASK (SNBEP_PMON_RAW_EVENT_MASK | \
+ SNBEP_CBO_PMON_CTL_TID_EN)
+
+/* SNB-EP PCU event control */
+#define SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK 0x0000c000
+#define SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK 0x1f000000
+#define SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT (1 << 30)
+#define SNBEP_PCU_MSR_PMON_CTL_OCC_EDGE_DET (1 << 31)
+#define SNBEP_PCU_MSR_PMON_RAW_EVENT_MASK \
+ (SNBEP_PMON_CTL_EV_SEL_MASK | \
+ SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \
+ SNBEP_PMON_CTL_EDGE_DET | \
+ SNBEP_PMON_CTL_INVERT | \
+ SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK | \
+ SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \
+ SNBEP_PCU_MSR_PMON_CTL_OCC_EDGE_DET)
+
+#define SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK \
+ (SNBEP_PMON_RAW_EVENT_MASK | \
+ SNBEP_PMON_CTL_EV_SEL_EXT)
+
+/* SNB-EP pci control register */
+#define SNBEP_PCI_PMON_BOX_CTL 0xf4
+#define SNBEP_PCI_PMON_CTL0 0xd8
+/* SNB-EP pci counter register */
+#define SNBEP_PCI_PMON_CTR0 0xa0
+
+/* SNB-EP home agent register */
+#define SNBEP_HA_PCI_PMON_BOX_ADDRMATCH0 0x40
+#define SNBEP_HA_PCI_PMON_BOX_ADDRMATCH1 0x44
+#define SNBEP_HA_PCI_PMON_BOX_OPCODEMATCH 0x48
+/* SNB-EP memory controller register */
+#define SNBEP_MC_CHy_PCI_PMON_FIXED_CTL 0xf0
+#define SNBEP_MC_CHy_PCI_PMON_FIXED_CTR 0xd0
+/* SNB-EP QPI register */
+#define SNBEP_Q_Py_PCI_PMON_PKT_MATCH0 0x228
+#define SNBEP_Q_Py_PCI_PMON_PKT_MATCH1 0x22c
+#define SNBEP_Q_Py_PCI_PMON_PKT_MASK0 0x238
+#define SNBEP_Q_Py_PCI_PMON_PKT_MASK1 0x23c
+
+/* SNB-EP Ubox register */
+#define SNBEP_U_MSR_PMON_CTR0 0xc16
+#define SNBEP_U_MSR_PMON_CTL0 0xc10
+
+#define SNBEP_U_MSR_PMON_UCLK_FIXED_CTL 0xc08
+#define SNBEP_U_MSR_PMON_UCLK_FIXED_CTR 0xc09
+
+/* SNB-EP Cbo register */
+#define SNBEP_C0_MSR_PMON_CTR0 0xd16
+#define SNBEP_C0_MSR_PMON_CTL0 0xd10
+#define SNBEP_C0_MSR_PMON_BOX_CTL 0xd04
+#define SNBEP_C0_MSR_PMON_BOX_FILTER 0xd14
+#define SNBEP_CBO_MSR_OFFSET 0x20
+
+#define SNBEP_CB0_MSR_PMON_BOX_FILTER_TID 0x1f
+#define SNBEP_CB0_MSR_PMON_BOX_FILTER_NID 0x3fc00
+#define SNBEP_CB0_MSR_PMON_BOX_FILTER_STATE 0x7c0000
+#define SNBEP_CB0_MSR_PMON_BOX_FILTER_OPC 0xff800000
+
+#define SNBEP_CBO_EVENT_EXTRA_REG(e, m, i) { \
+ .event = (e), \
+ .msr = SNBEP_C0_MSR_PMON_BOX_FILTER, \
+ .config_mask = (m), \
+ .idx = (i) \
+}
+
+/* SNB-EP PCU register */
+#define SNBEP_PCU_MSR_PMON_CTR0 0xc36
+#define SNBEP_PCU_MSR_PMON_CTL0 0xc30
+#define SNBEP_PCU_MSR_PMON_BOX_CTL 0xc24
+#define SNBEP_PCU_MSR_PMON_BOX_FILTER 0xc34
+#define SNBEP_PCU_MSR_PMON_BOX_FILTER_MASK 0xffffffff
+#define SNBEP_PCU_MSR_CORE_C3_CTR 0x3fc
+#define SNBEP_PCU_MSR_CORE_C6_CTR 0x3fd
+
+/* IVBEP event control */
+#define IVBEP_PMON_BOX_CTL_INT (SNBEP_PMON_BOX_CTL_RST_CTRL | \
+ SNBEP_PMON_BOX_CTL_RST_CTRS)
+#define IVBEP_PMON_RAW_EVENT_MASK (SNBEP_PMON_CTL_EV_SEL_MASK | \
+ SNBEP_PMON_CTL_UMASK_MASK | \
+ SNBEP_PMON_CTL_EDGE_DET | \
+ SNBEP_PMON_CTL_TRESH_MASK)
+/* IVBEP Ubox */
+#define IVBEP_U_MSR_PMON_GLOBAL_CTL 0xc00
+#define IVBEP_U_PMON_GLOBAL_FRZ_ALL (1 << 31)
+#define IVBEP_U_PMON_GLOBAL_UNFRZ_ALL (1 << 29)
+
+#define IVBEP_U_MSR_PMON_RAW_EVENT_MASK \
+ (SNBEP_PMON_CTL_EV_SEL_MASK | \
+ SNBEP_PMON_CTL_UMASK_MASK | \
+ SNBEP_PMON_CTL_EDGE_DET | \
+ SNBEP_U_MSR_PMON_CTL_TRESH_MASK)
+/* IVBEP Cbo */
+#define IVBEP_CBO_MSR_PMON_RAW_EVENT_MASK (IVBEP_PMON_RAW_EVENT_MASK | \
+ SNBEP_CBO_PMON_CTL_TID_EN)
+
+#define IVBEP_CB0_MSR_PMON_BOX_FILTER_TID (0x1fULL << 0)
+#define IVBEP_CB0_MSR_PMON_BOX_FILTER_LINK (0xfULL << 5)
+#define IVBEP_CB0_MSR_PMON_BOX_FILTER_STATE (0x3fULL << 17)
+#define IVBEP_CB0_MSR_PMON_BOX_FILTER_NID (0xffffULL << 32)
+#define IVBEP_CB0_MSR_PMON_BOX_FILTER_OPC (0x1ffULL << 52)
+#define IVBEP_CB0_MSR_PMON_BOX_FILTER_C6 (0x1ULL << 61)
+#define IVBEP_CB0_MSR_PMON_BOX_FILTER_NC (0x1ULL << 62)
+#define IVBEP_CB0_MSR_PMON_BOX_FILTER_ISOC (0x1ULL << 63)
+
+/* IVBEP home agent */
+#define IVBEP_HA_PCI_PMON_CTL_Q_OCC_RST (1 << 16)
+#define IVBEP_HA_PCI_PMON_RAW_EVENT_MASK \
+ (IVBEP_PMON_RAW_EVENT_MASK | \
+ IVBEP_HA_PCI_PMON_CTL_Q_OCC_RST)
+/* IVBEP PCU */
+#define IVBEP_PCU_MSR_PMON_RAW_EVENT_MASK \
+ (SNBEP_PMON_CTL_EV_SEL_MASK | \
+ SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \
+ SNBEP_PMON_CTL_EDGE_DET | \
+ SNBEP_PCU_MSR_PMON_CTL_TRESH_MASK | \
+ SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \
+ SNBEP_PCU_MSR_PMON_CTL_OCC_EDGE_DET)
+/* IVBEP QPI */
+#define IVBEP_QPI_PCI_PMON_RAW_EVENT_MASK \
+ (IVBEP_PMON_RAW_EVENT_MASK | \
+ SNBEP_PMON_CTL_EV_SEL_EXT)
+
+#define __BITS_VALUE(x, i, n) ((typeof(x))(((x) >> ((i) * (n))) & \
+ ((1ULL << (n)) - 1)))
+
+/* Haswell-EP Ubox */
+#define HSWEP_U_MSR_PMON_CTR0 0x709
+#define HSWEP_U_MSR_PMON_CTL0 0x705
+#define HSWEP_U_MSR_PMON_FILTER 0x707
+
+#define HSWEP_U_MSR_PMON_UCLK_FIXED_CTL 0x703
+#define HSWEP_U_MSR_PMON_UCLK_FIXED_CTR 0x704
+
+#define HSWEP_U_MSR_PMON_BOX_FILTER_TID (0x1 << 0)
+#define HSWEP_U_MSR_PMON_BOX_FILTER_CID (0x1fULL << 1)
+#define HSWEP_U_MSR_PMON_BOX_FILTER_MASK \
+ (HSWEP_U_MSR_PMON_BOX_FILTER_TID | \
+ HSWEP_U_MSR_PMON_BOX_FILTER_CID)
+
+/* Haswell-EP CBo */
+#define HSWEP_C0_MSR_PMON_CTR0 0xe08
+#define HSWEP_C0_MSR_PMON_CTL0 0xe01
+#define HSWEP_C0_MSR_PMON_BOX_CTL 0xe00
+#define HSWEP_C0_MSR_PMON_BOX_FILTER0 0xe05
+#define HSWEP_CBO_MSR_OFFSET 0x10
+
+
+#define HSWEP_CB0_MSR_PMON_BOX_FILTER_TID (0x3fULL << 0)
+#define HSWEP_CB0_MSR_PMON_BOX_FILTER_LINK (0xfULL << 6)
+#define HSWEP_CB0_MSR_PMON_BOX_FILTER_STATE (0x7fULL << 17)
+#define HSWEP_CB0_MSR_PMON_BOX_FILTER_NID (0xffffULL << 32)
+#define HSWEP_CB0_MSR_PMON_BOX_FILTER_OPC (0x1ffULL << 52)
+#define HSWEP_CB0_MSR_PMON_BOX_FILTER_C6 (0x1ULL << 61)
+#define HSWEP_CB0_MSR_PMON_BOX_FILTER_NC (0x1ULL << 62)
+#define HSWEP_CB0_MSR_PMON_BOX_FILTER_ISOC (0x1ULL << 63)
+
+
+/* Haswell-EP Sbox */
+#define HSWEP_S0_MSR_PMON_CTR0 0x726
+#define HSWEP_S0_MSR_PMON_CTL0 0x721
+#define HSWEP_S0_MSR_PMON_BOX_CTL 0x720
+#define HSWEP_SBOX_MSR_OFFSET 0xa
+#define HSWEP_S_MSR_PMON_RAW_EVENT_MASK (SNBEP_PMON_RAW_EVENT_MASK | \
+ SNBEP_CBO_PMON_CTL_TID_EN)
+
+/* Haswell-EP PCU */
+#define HSWEP_PCU_MSR_PMON_CTR0 0x717
+#define HSWEP_PCU_MSR_PMON_CTL0 0x711
+#define HSWEP_PCU_MSR_PMON_BOX_CTL 0x710
+#define HSWEP_PCU_MSR_PMON_BOX_FILTER 0x715
+
+/* KNL Ubox */
+#define KNL_U_MSR_PMON_RAW_EVENT_MASK \
+ (SNBEP_U_MSR_PMON_RAW_EVENT_MASK | \
+ SNBEP_CBO_PMON_CTL_TID_EN)
+/* KNL CHA */
+#define KNL_CHA_MSR_OFFSET 0xc
+#define KNL_CHA_MSR_PMON_CTL_QOR (1 << 16)
+#define KNL_CHA_MSR_PMON_RAW_EVENT_MASK \
+ (SNBEP_CBO_MSR_PMON_RAW_EVENT_MASK | \
+ KNL_CHA_MSR_PMON_CTL_QOR)
+#define KNL_CHA_MSR_PMON_BOX_FILTER_TID 0x1ff
+#define KNL_CHA_MSR_PMON_BOX_FILTER_STATE (7 << 18)
+#define KNL_CHA_MSR_PMON_BOX_FILTER_OP (0xfffffe2aULL << 32)
+#define KNL_CHA_MSR_PMON_BOX_FILTER_REMOTE_NODE (0x1ULL << 32)
+#define KNL_CHA_MSR_PMON_BOX_FILTER_LOCAL_NODE (0x1ULL << 33)
+#define KNL_CHA_MSR_PMON_BOX_FILTER_NNC (0x1ULL << 37)
+
+/* KNL EDC/MC UCLK */
+#define KNL_UCLK_MSR_PMON_CTR0_LOW 0x400
+#define KNL_UCLK_MSR_PMON_CTL0 0x420
+#define KNL_UCLK_MSR_PMON_BOX_CTL 0x430
+#define KNL_UCLK_MSR_PMON_UCLK_FIXED_LOW 0x44c
+#define KNL_UCLK_MSR_PMON_UCLK_FIXED_CTL 0x454
+#define KNL_PMON_FIXED_CTL_EN 0x1
+
+/* KNL EDC */
+#define KNL_EDC0_ECLK_MSR_PMON_CTR0_LOW 0xa00
+#define KNL_EDC0_ECLK_MSR_PMON_CTL0 0xa20
+#define KNL_EDC0_ECLK_MSR_PMON_BOX_CTL 0xa30
+#define KNL_EDC0_ECLK_MSR_PMON_ECLK_FIXED_LOW 0xa3c
+#define KNL_EDC0_ECLK_MSR_PMON_ECLK_FIXED_CTL 0xa44
+
+/* KNL MC */
+#define KNL_MC0_CH0_MSR_PMON_CTR0_LOW 0xb00
+#define KNL_MC0_CH0_MSR_PMON_CTL0 0xb20
+#define KNL_MC0_CH0_MSR_PMON_BOX_CTL 0xb30
+#define KNL_MC0_CH0_MSR_PMON_FIXED_LOW 0xb3c
+#define KNL_MC0_CH0_MSR_PMON_FIXED_CTL 0xb44
+
+/* KNL IRP */
+#define KNL_IRP_PCI_PMON_BOX_CTL 0xf0
+#define KNL_IRP_PCI_PMON_RAW_EVENT_MASK (SNBEP_PMON_RAW_EVENT_MASK | \
+ KNL_CHA_MSR_PMON_CTL_QOR)
+/* KNL PCU */
+#define KNL_PCU_PMON_CTL_EV_SEL_MASK 0x0000007f
+#define KNL_PCU_PMON_CTL_USE_OCC_CTR (1 << 7)
+#define KNL_PCU_MSR_PMON_CTL_TRESH_MASK 0x3f000000
+#define KNL_PCU_MSR_PMON_RAW_EVENT_MASK \
+ (KNL_PCU_PMON_CTL_EV_SEL_MASK | \
+ KNL_PCU_PMON_CTL_USE_OCC_CTR | \
+ SNBEP_PCU_MSR_PMON_CTL_OCC_SEL_MASK | \
+ SNBEP_PMON_CTL_EDGE_DET | \
+ SNBEP_CBO_PMON_CTL_TID_EN | \
+ SNBEP_PMON_CTL_INVERT | \
+ KNL_PCU_MSR_PMON_CTL_TRESH_MASK | \
+ SNBEP_PCU_MSR_PMON_CTL_OCC_INVERT | \
+ SNBEP_PCU_MSR_PMON_CTL_OCC_EDGE_DET)
+
+/* SKX pci bus to socket mapping */
+#define SKX_CPUNODEID 0xc0
+#define SKX_GIDNIDMAP 0xd4
+
+/*
+ * The CPU_BUS_NUMBER MSR returns the values of the respective CPUBUSNO CSR
+ * that BIOS programmed. MSR has package scope.
+ * | Bit | Default | Description
+ * | [63] | 00h | VALID - When set, indicates the CPU bus
+ * numbers have been initialized. (RO)
+ * |[62:48]| --- | Reserved
+ * |[47:40]| 00h | BUS_NUM_5 - Return the bus number BIOS assigned
+ * CPUBUSNO(5). (RO)
+ * |[39:32]| 00h | BUS_NUM_4 - Return the bus number BIOS assigned
+ * CPUBUSNO(4). (RO)
+ * |[31:24]| 00h | BUS_NUM_3 - Return the bus number BIOS assigned
+ * CPUBUSNO(3). (RO)
+ * |[23:16]| 00h | BUS_NUM_2 - Return the bus number BIOS assigned
+ * CPUBUSNO(2). (RO)
+ * |[15:8] | 00h | BUS_NUM_1 - Return the bus number BIOS assigned
+ * CPUBUSNO(1). (RO)
+ * | [7:0] | 00h | BUS_NUM_0 - Return the bus number BIOS assigned
+ * CPUBUSNO(0). (RO)
+ */
+#define SKX_MSR_CPU_BUS_NUMBER 0x300
+#define SKX_MSR_CPU_BUS_VALID_BIT (1ULL << 63)
+#define BUS_NUM_STRIDE 8
+
+/* SKX CHA */
+#define SKX_CHA_MSR_PMON_BOX_FILTER_TID (0x1ffULL << 0)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_LINK (0xfULL << 9)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_STATE (0x3ffULL << 17)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_REM (0x1ULL << 32)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_LOC (0x1ULL << 33)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_ALL_OPC (0x1ULL << 35)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_NM (0x1ULL << 36)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_NOT_NM (0x1ULL << 37)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_OPC0 (0x3ffULL << 41)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_OPC1 (0x3ffULL << 51)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_C6 (0x1ULL << 61)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_NC (0x1ULL << 62)
+#define SKX_CHA_MSR_PMON_BOX_FILTER_ISOC (0x1ULL << 63)
+
+/* SKX IIO */
+#define SKX_IIO0_MSR_PMON_CTL0 0xa48
+#define SKX_IIO0_MSR_PMON_CTR0 0xa41
+#define SKX_IIO0_MSR_PMON_BOX_CTL 0xa40
+#define SKX_IIO_MSR_OFFSET 0x20
+
+#define SKX_PMON_CTL_TRESH_MASK (0xff << 24)
+#define SKX_PMON_CTL_TRESH_MASK_EXT (0xf)
+#define SKX_PMON_CTL_CH_MASK (0xff << 4)
+#define SKX_PMON_CTL_FC_MASK (0x7 << 12)
+#define SKX_IIO_PMON_RAW_EVENT_MASK (SNBEP_PMON_CTL_EV_SEL_MASK | \
+ SNBEP_PMON_CTL_UMASK_MASK | \
+ SNBEP_PMON_CTL_EDGE_DET | \
+ SNBEP_PMON_CTL_INVERT | \
+ SKX_PMON_CTL_TRESH_MASK)
+#define SKX_IIO_PMON_RAW_EVENT_MASK_EXT (SKX_PMON_CTL_TRESH_MASK_EXT | \
+ SKX_PMON_CTL_CH_MASK | \
+ SKX_PMON_CTL_FC_MASK)
+
+/* SKX IRP */
+#define SKX_IRP0_MSR_PMON_CTL0 0xa5b
+#define SKX_IRP0_MSR_PMON_CTR0 0xa59
+#define SKX_IRP0_MSR_PMON_BOX_CTL 0xa58
+#define SKX_IRP_MSR_OFFSET 0x20
+
+/* SKX UPI */
+#define SKX_UPI_PCI_PMON_CTL0 0x350
+#define SKX_UPI_PCI_PMON_CTR0 0x318
+#define SKX_UPI_PCI_PMON_BOX_CTL 0x378
+#define SKX_UPI_CTL_UMASK_EXT 0xffefff
+
+/* SKX M2M */
+#define SKX_M2M_PCI_PMON_CTL0 0x228
+#define SKX_M2M_PCI_PMON_CTR0 0x200
+#define SKX_M2M_PCI_PMON_BOX_CTL 0x258
+
+/* Memory Map registers device ID */
+#define SNR_ICX_MESH2IIO_MMAP_DID 0x9a2
+#define SNR_ICX_SAD_CONTROL_CFG 0x3f4
+
+/* Getting I/O stack id in SAD_COTROL_CFG notation */
+#define SAD_CONTROL_STACK_ID(data) (((data) >> 4) & 0x7)
+
+/* SNR Ubox */
+#define SNR_U_MSR_PMON_CTR0 0x1f98
+#define SNR_U_MSR_PMON_CTL0 0x1f91
+#define SNR_U_MSR_PMON_UCLK_FIXED_CTL 0x1f93
+#define SNR_U_MSR_PMON_UCLK_FIXED_CTR 0x1f94
+
+/* SNR CHA */
+#define SNR_CHA_RAW_EVENT_MASK_EXT 0x3ffffff
+#define SNR_CHA_MSR_PMON_CTL0 0x1c01
+#define SNR_CHA_MSR_PMON_CTR0 0x1c08
+#define SNR_CHA_MSR_PMON_BOX_CTL 0x1c00
+#define SNR_C0_MSR_PMON_BOX_FILTER0 0x1c05
+
+
+/* SNR IIO */
+#define SNR_IIO_MSR_PMON_CTL0 0x1e08
+#define SNR_IIO_MSR_PMON_CTR0 0x1e01
+#define SNR_IIO_MSR_PMON_BOX_CTL 0x1e00
+#define SNR_IIO_MSR_OFFSET 0x10
+#define SNR_IIO_PMON_RAW_EVENT_MASK_EXT 0x7ffff
+
+/* SNR IRP */
+#define SNR_IRP0_MSR_PMON_CTL0 0x1ea8
+#define SNR_IRP0_MSR_PMON_CTR0 0x1ea1
+#define SNR_IRP0_MSR_PMON_BOX_CTL 0x1ea0
+#define SNR_IRP_MSR_OFFSET 0x10
+
+/* SNR M2PCIE */
+#define SNR_M2PCIE_MSR_PMON_CTL0 0x1e58
+#define SNR_M2PCIE_MSR_PMON_CTR0 0x1e51
+#define SNR_M2PCIE_MSR_PMON_BOX_CTL 0x1e50
+#define SNR_M2PCIE_MSR_OFFSET 0x10
+
+/* SNR PCU */
+#define SNR_PCU_MSR_PMON_CTL0 0x1ef1
+#define SNR_PCU_MSR_PMON_CTR0 0x1ef8
+#define SNR_PCU_MSR_PMON_BOX_CTL 0x1ef0
+#define SNR_PCU_MSR_PMON_BOX_FILTER 0x1efc
+
+/* SNR M2M */
+#define SNR_M2M_PCI_PMON_CTL0 0x468
+#define SNR_M2M_PCI_PMON_CTR0 0x440
+#define SNR_M2M_PCI_PMON_BOX_CTL 0x438
+#define SNR_M2M_PCI_PMON_UMASK_EXT 0xff
+
+/* SNR PCIE3 */
+#define SNR_PCIE3_PCI_PMON_CTL0 0x508
+#define SNR_PCIE3_PCI_PMON_CTR0 0x4e8
+#define SNR_PCIE3_PCI_PMON_BOX_CTL 0x4e0
+
+/* SNR IMC */
+#define SNR_IMC_MMIO_PMON_FIXED_CTL 0x54
+#define SNR_IMC_MMIO_PMON_FIXED_CTR 0x38
+#define SNR_IMC_MMIO_PMON_CTL0 0x40
+#define SNR_IMC_MMIO_PMON_CTR0 0x8
+#define SNR_IMC_MMIO_PMON_BOX_CTL 0x22800
+#define SNR_IMC_MMIO_OFFSET 0x4000
+#define SNR_IMC_MMIO_SIZE 0x4000
+#define SNR_IMC_MMIO_BASE_OFFSET 0xd0
+#define SNR_IMC_MMIO_BASE_MASK 0x1FFFFFFF
+#define SNR_IMC_MMIO_MEM0_OFFSET 0xd8
+#define SNR_IMC_MMIO_MEM0_MASK 0x7FF
+
+/* ICX CHA */
+#define ICX_C34_MSR_PMON_CTR0 0xb68
+#define ICX_C34_MSR_PMON_CTL0 0xb61
+#define ICX_C34_MSR_PMON_BOX_CTL 0xb60
+#define ICX_C34_MSR_PMON_BOX_FILTER0 0xb65
+
+/* ICX IIO */
+#define ICX_IIO_MSR_PMON_CTL0 0xa58
+#define ICX_IIO_MSR_PMON_CTR0 0xa51
+#define ICX_IIO_MSR_PMON_BOX_CTL 0xa50
+
+/* ICX IRP */
+#define ICX_IRP0_MSR_PMON_CTL0 0xa4d
+#define ICX_IRP0_MSR_PMON_CTR0 0xa4b
+#define ICX_IRP0_MSR_PMON_BOX_CTL 0xa4a
+
+/* ICX M2PCIE */
+#define ICX_M2PCIE_MSR_PMON_CTL0 0xa46
+#define ICX_M2PCIE_MSR_PMON_CTR0 0xa41
+#define ICX_M2PCIE_MSR_PMON_BOX_CTL 0xa40
+
+/* ICX UPI */
+#define ICX_UPI_PCI_PMON_CTL0 0x350
+#define ICX_UPI_PCI_PMON_CTR0 0x320
+#define ICX_UPI_PCI_PMON_BOX_CTL 0x318
+#define ICX_UPI_CTL_UMASK_EXT 0xffffff
+#define ICX_UBOX_DID 0x3450
+
+/* ICX M3UPI*/
+#define ICX_M3UPI_PCI_PMON_CTL0 0xd8
+#define ICX_M3UPI_PCI_PMON_CTR0 0xa8
+#define ICX_M3UPI_PCI_PMON_BOX_CTL 0xa0
+
+/* ICX IMC */
+#define ICX_NUMBER_IMC_CHN 3
+#define ICX_IMC_MEM_STRIDE 0x4
+
+/* SPR */
+#define SPR_RAW_EVENT_MASK_EXT 0xffffff
+#define SPR_UBOX_DID 0x3250
+
+/* SPR CHA */
+#define SPR_CHA_PMON_CTL_TID_EN (1 << 16)
+#define SPR_CHA_PMON_EVENT_MASK (SNBEP_PMON_RAW_EVENT_MASK | \
+ SPR_CHA_PMON_CTL_TID_EN)
+#define SPR_CHA_PMON_BOX_FILTER_TID 0x3ff
+
+#define SPR_C0_MSR_PMON_BOX_FILTER0 0x200e
+
+DEFINE_UNCORE_FORMAT_ATTR(event, event, "config:0-7");
+DEFINE_UNCORE_FORMAT_ATTR(event2, event, "config:0-6");
+DEFINE_UNCORE_FORMAT_ATTR(event_ext, event, "config:0-7,21");
+DEFINE_UNCORE_FORMAT_ATTR(use_occ_ctr, use_occ_ctr, "config:7");
+DEFINE_UNCORE_FORMAT_ATTR(umask, umask, "config:8-15");
+DEFINE_UNCORE_FORMAT_ATTR(umask_ext, umask, "config:8-15,32-43,45-55");
+DEFINE_UNCORE_FORMAT_ATTR(umask_ext2, umask, "config:8-15,32-57");
+DEFINE_UNCORE_FORMAT_ATTR(umask_ext3, umask, "config:8-15,32-39");
+DEFINE_UNCORE_FORMAT_ATTR(umask_ext4, umask, "config:8-15,32-55");
+DEFINE_UNCORE_FORMAT_ATTR(qor, qor, "config:16");
+DEFINE_UNCORE_FORMAT_ATTR(edge, edge, "config:18");
+DEFINE_UNCORE_FORMAT_ATTR(tid_en, tid_en, "config:19");
+DEFINE_UNCORE_FORMAT_ATTR(tid_en2, tid_en, "config:16");
+DEFINE_UNCORE_FORMAT_ATTR(inv, inv, "config:23");
+DEFINE_UNCORE_FORMAT_ATTR(thresh9, thresh, "config:24-35");
+DEFINE_UNCORE_FORMAT_ATTR(thresh8, thresh, "config:24-31");
+DEFINE_UNCORE_FORMAT_ATTR(thresh6, thresh, "config:24-29");
+DEFINE_UNCORE_FORMAT_ATTR(thresh5, thresh, "config:24-28");
+DEFINE_UNCORE_FORMAT_ATTR(occ_sel, occ_sel, "config:14-15");
+DEFINE_UNCORE_FORMAT_ATTR(occ_invert, occ_invert, "config:30");
+DEFINE_UNCORE_FORMAT_ATTR(occ_edge, occ_edge, "config:14-51");
+DEFINE_UNCORE_FORMAT_ATTR(occ_edge_det, occ_edge_det, "config:31");
+DEFINE_UNCORE_FORMAT_ATTR(ch_mask, ch_mask, "config:36-43");
+DEFINE_UNCORE_FORMAT_ATTR(ch_mask2, ch_mask, "config:36-47");
+DEFINE_UNCORE_FORMAT_ATTR(fc_mask, fc_mask, "config:44-46");
+DEFINE_UNCORE_FORMAT_ATTR(fc_mask2, fc_mask, "config:48-50");
+DEFINE_UNCORE_FORMAT_ATTR(filter_tid, filter_tid, "config1:0-4");
+DEFINE_UNCORE_FORMAT_ATTR(filter_tid2, filter_tid, "config1:0");
+DEFINE_UNCORE_FORMAT_ATTR(filter_tid3, filter_tid, "config1:0-5");
+DEFINE_UNCORE_FORMAT_ATTR(filter_tid4, filter_tid, "config1:0-8");
+DEFINE_UNCORE_FORMAT_ATTR(filter_tid5, filter_tid, "config1:0-9");
+DEFINE_UNCORE_FORMAT_ATTR(filter_cid, filter_cid, "config1:5");
+DEFINE_UNCORE_FORMAT_ATTR(filter_link, filter_link, "config1:5-8");
+DEFINE_UNCORE_FORMAT_ATTR(filter_link2, filter_link, "config1:6-8");
+DEFINE_UNCORE_FORMAT_ATTR(filter_link3, filter_link, "config1:12");
+DEFINE_UNCORE_FORMAT_ATTR(filter_nid, filter_nid, "config1:10-17");
+DEFINE_UNCORE_FORMAT_ATTR(filter_nid2, filter_nid, "config1:32-47");
+DEFINE_UNCORE_FORMAT_ATTR(filter_state, filter_state, "config1:18-22");
+DEFINE_UNCORE_FORMAT_ATTR(filter_state2, filter_state, "config1:17-22");
+DEFINE_UNCORE_FORMAT_ATTR(filter_state3, filter_state, "config1:17-23");
+DEFINE_UNCORE_FORMAT_ATTR(filter_state4, filter_state, "config1:18-20");
+DEFINE_UNCORE_FORMAT_ATTR(filter_state5, filter_state, "config1:17-26");
+DEFINE_UNCORE_FORMAT_ATTR(filter_rem, filter_rem, "config1:32");
+DEFINE_UNCORE_FORMAT_ATTR(filter_loc, filter_loc, "config1:33");
+DEFINE_UNCORE_FORMAT_ATTR(filter_nm, filter_nm, "config1:36");
+DEFINE_UNCORE_FORMAT_ATTR(filter_not_nm, filter_not_nm, "config1:37");
+DEFINE_UNCORE_FORMAT_ATTR(filter_local, filter_local, "config1:33");
+DEFINE_UNCORE_FORMAT_ATTR(filter_all_op, filter_all_op, "config1:35");
+DEFINE_UNCORE_FORMAT_ATTR(filter_nnm, filter_nnm, "config1:37");
+DEFINE_UNCORE_FORMAT_ATTR(filter_opc, filter_opc, "config1:23-31");
+DEFINE_UNCORE_FORMAT_ATTR(filter_opc2, filter_opc, "config1:52-60");
+DEFINE_UNCORE_FORMAT_ATTR(filter_opc3, filter_opc, "config1:41-60");
+DEFINE_UNCORE_FORMAT_ATTR(filter_opc_0, filter_opc0, "config1:41-50");
+DEFINE_UNCORE_FORMAT_ATTR(filter_opc_1, filter_opc1, "config1:51-60");
+DEFINE_UNCORE_FORMAT_ATTR(filter_nc, filter_nc, "config1:62");
+DEFINE_UNCORE_FORMAT_ATTR(filter_c6, filter_c6, "config1:61");
+DEFINE_UNCORE_FORMAT_ATTR(filter_isoc, filter_isoc, "config1:63");
+DEFINE_UNCORE_FORMAT_ATTR(filter_band0, filter_band0, "config1:0-7");
+DEFINE_UNCORE_FORMAT_ATTR(filter_band1, filter_band1, "config1:8-15");
+DEFINE_UNCORE_FORMAT_ATTR(filter_band2, filter_band2, "config1:16-23");
+DEFINE_UNCORE_FORMAT_ATTR(filter_band3, filter_band3, "config1:24-31");
+DEFINE_UNCORE_FORMAT_ATTR(match_rds, match_rds, "config1:48-51");
+DEFINE_UNCORE_FORMAT_ATTR(match_rnid30, match_rnid30, "config1:32-35");
+DEFINE_UNCORE_FORMAT_ATTR(match_rnid4, match_rnid4, "config1:31");
+DEFINE_UNCORE_FORMAT_ATTR(match_dnid, match_dnid, "config1:13-17");
+DEFINE_UNCORE_FORMAT_ATTR(match_mc, match_mc, "config1:9-12");
+DEFINE_UNCORE_FORMAT_ATTR(match_opc, match_opc, "config1:5-8");
+DEFINE_UNCORE_FORMAT_ATTR(match_vnw, match_vnw, "config1:3-4");
+DEFINE_UNCORE_FORMAT_ATTR(match0, match0, "config1:0-31");
+DEFINE_UNCORE_FORMAT_ATTR(match1, match1, "config1:32-63");
+DEFINE_UNCORE_FORMAT_ATTR(mask_rds, mask_rds, "config2:48-51");
+DEFINE_UNCORE_FORMAT_ATTR(mask_rnid30, mask_rnid30, "config2:32-35");
+DEFINE_UNCORE_FORMAT_ATTR(mask_rnid4, mask_rnid4, "config2:31");
+DEFINE_UNCORE_FORMAT_ATTR(mask_dnid, mask_dnid, "config2:13-17");
+DEFINE_UNCORE_FORMAT_ATTR(mask_mc, mask_mc, "config2:9-12");
+DEFINE_UNCORE_FORMAT_ATTR(mask_opc, mask_opc, "config2:5-8");
+DEFINE_UNCORE_FORMAT_ATTR(mask_vnw, mask_vnw, "config2:3-4");
+DEFINE_UNCORE_FORMAT_ATTR(mask0, mask0, "config2:0-31");
+DEFINE_UNCORE_FORMAT_ATTR(mask1, mask1, "config2:32-63");
+
+static void snbep_uncore_pci_disable_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ int box_ctl = uncore_pci_box_ctl(box);
+ u32 config = 0;
+
+ if (!pci_read_config_dword(pdev, box_ctl, &config)) {
+ config |= SNBEP_PMON_BOX_CTL_FRZ;
+ pci_write_config_dword(pdev, box_ctl, config);
+ }
+}
+
+static void snbep_uncore_pci_enable_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ int box_ctl = uncore_pci_box_ctl(box);
+ u32 config = 0;
+
+ if (!pci_read_config_dword(pdev, box_ctl, &config)) {
+ config &= ~SNBEP_PMON_BOX_CTL_FRZ;
+ pci_write_config_dword(pdev, box_ctl, config);
+ }
+}
+
+static void snbep_uncore_pci_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+
+ pci_write_config_dword(pdev, hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static void snbep_uncore_pci_disable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+
+ pci_write_config_dword(pdev, hwc->config_base, hwc->config);
+}
+
+static u64 snbep_uncore_pci_read_counter(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+ u64 count = 0;
+
+ pci_read_config_dword(pdev, hwc->event_base, (u32 *)&count);
+ pci_read_config_dword(pdev, hwc->event_base + 4, (u32 *)&count + 1);
+
+ return count;
+}
+
+static void snbep_uncore_pci_init_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ int box_ctl = uncore_pci_box_ctl(box);
+
+ pci_write_config_dword(pdev, box_ctl, SNBEP_PMON_BOX_CTL_INT);
+}
+
+static void snbep_uncore_msr_disable_box(struct intel_uncore_box *box)
+{
+ u64 config;
+ unsigned msr;
+
+ msr = uncore_msr_box_ctl(box);
+ if (msr) {
+ rdmsrl(msr, config);
+ config |= SNBEP_PMON_BOX_CTL_FRZ;
+ wrmsrl(msr, config);
+ }
+}
+
+static void snbep_uncore_msr_enable_box(struct intel_uncore_box *box)
+{
+ u64 config;
+ unsigned msr;
+
+ msr = uncore_msr_box_ctl(box);
+ if (msr) {
+ rdmsrl(msr, config);
+ config &= ~SNBEP_PMON_BOX_CTL_FRZ;
+ wrmsrl(msr, config);
+ }
+}
+
+static void snbep_uncore_msr_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+
+ if (reg1->idx != EXTRA_REG_NONE)
+ wrmsrl(reg1->reg, uncore_shared_reg_config(box, 0));
+
+ wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static void snbep_uncore_msr_disable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ wrmsrl(hwc->config_base, hwc->config);
+}
+
+static void snbep_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+ unsigned msr = uncore_msr_box_ctl(box);
+
+ if (msr)
+ wrmsrl(msr, SNBEP_PMON_BOX_CTL_INT);
+}
+
+static struct attribute *snbep_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static struct attribute *snbep_uncore_ubox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh5.attr,
+ NULL,
+};
+
+static struct attribute *snbep_uncore_cbox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_tid_en.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_filter_tid.attr,
+ &format_attr_filter_nid.attr,
+ &format_attr_filter_state.attr,
+ &format_attr_filter_opc.attr,
+ NULL,
+};
+
+static struct attribute *snbep_uncore_pcu_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_occ_sel.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh5.attr,
+ &format_attr_occ_invert.attr,
+ &format_attr_occ_edge.attr,
+ &format_attr_filter_band0.attr,
+ &format_attr_filter_band1.attr,
+ &format_attr_filter_band2.attr,
+ &format_attr_filter_band3.attr,
+ NULL,
+};
+
+static struct attribute *snbep_uncore_qpi_formats_attr[] = {
+ &format_attr_event_ext.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_match_rds.attr,
+ &format_attr_match_rnid30.attr,
+ &format_attr_match_rnid4.attr,
+ &format_attr_match_dnid.attr,
+ &format_attr_match_mc.attr,
+ &format_attr_match_opc.attr,
+ &format_attr_match_vnw.attr,
+ &format_attr_match0.attr,
+ &format_attr_match1.attr,
+ &format_attr_mask_rds.attr,
+ &format_attr_mask_rnid30.attr,
+ &format_attr_mask_rnid4.attr,
+ &format_attr_mask_dnid.attr,
+ &format_attr_mask_mc.attr,
+ &format_attr_mask_opc.attr,
+ &format_attr_mask_vnw.attr,
+ &format_attr_mask0.attr,
+ &format_attr_mask1.attr,
+ NULL,
+};
+
+static struct uncore_event_desc snbep_uncore_imc_events[] = {
+ INTEL_UNCORE_EVENT_DESC(clockticks, "event=0xff,umask=0x00"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read, "event=0x04,umask=0x03"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x04,umask=0x0c"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write.unit, "MiB"),
+ { /* end: all zeroes */ },
+};
+
+static struct uncore_event_desc snbep_uncore_qpi_events[] = {
+ INTEL_UNCORE_EVENT_DESC(clockticks, "event=0x14"),
+ INTEL_UNCORE_EVENT_DESC(txl_flits_active, "event=0x00,umask=0x06"),
+ INTEL_UNCORE_EVENT_DESC(drs_data, "event=0x102,umask=0x08"),
+ INTEL_UNCORE_EVENT_DESC(ncb_data, "event=0x103,umask=0x04"),
+ { /* end: all zeroes */ },
+};
+
+static const struct attribute_group snbep_uncore_format_group = {
+ .name = "format",
+ .attrs = snbep_uncore_formats_attr,
+};
+
+static const struct attribute_group snbep_uncore_ubox_format_group = {
+ .name = "format",
+ .attrs = snbep_uncore_ubox_formats_attr,
+};
+
+static const struct attribute_group snbep_uncore_cbox_format_group = {
+ .name = "format",
+ .attrs = snbep_uncore_cbox_formats_attr,
+};
+
+static const struct attribute_group snbep_uncore_pcu_format_group = {
+ .name = "format",
+ .attrs = snbep_uncore_pcu_formats_attr,
+};
+
+static const struct attribute_group snbep_uncore_qpi_format_group = {
+ .name = "format",
+ .attrs = snbep_uncore_qpi_formats_attr,
+};
+
+#define __SNBEP_UNCORE_MSR_OPS_COMMON_INIT() \
+ .disable_box = snbep_uncore_msr_disable_box, \
+ .enable_box = snbep_uncore_msr_enable_box, \
+ .disable_event = snbep_uncore_msr_disable_event, \
+ .enable_event = snbep_uncore_msr_enable_event, \
+ .read_counter = uncore_msr_read_counter
+
+#define SNBEP_UNCORE_MSR_OPS_COMMON_INIT() \
+ __SNBEP_UNCORE_MSR_OPS_COMMON_INIT(), \
+ .init_box = snbep_uncore_msr_init_box \
+
+static struct intel_uncore_ops snbep_uncore_msr_ops = {
+ SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
+};
+
+#define SNBEP_UNCORE_PCI_OPS_COMMON_INIT() \
+ .init_box = snbep_uncore_pci_init_box, \
+ .disable_box = snbep_uncore_pci_disable_box, \
+ .enable_box = snbep_uncore_pci_enable_box, \
+ .disable_event = snbep_uncore_pci_disable_event, \
+ .read_counter = snbep_uncore_pci_read_counter
+
+static struct intel_uncore_ops snbep_uncore_pci_ops = {
+ SNBEP_UNCORE_PCI_OPS_COMMON_INIT(),
+ .enable_event = snbep_uncore_pci_enable_event, \
+};
+
+static struct event_constraint snbep_uncore_cbox_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x01, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x02, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x04, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x05, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x07, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x09, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x12, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x13, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x1b, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0x1c, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0x1d, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0x1e, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0x1f, 0xe),
+ UNCORE_EVENT_CONSTRAINT(0x21, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x31, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x32, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x33, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x34, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x35, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x36, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x37, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x38, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x39, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x3b, 0x1),
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint snbep_uncore_r2pcie_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x10, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x12, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x24, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x25, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x26, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x32, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x33, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x34, 0x3),
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint snbep_uncore_r3qpi_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x10, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x12, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x13, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x20, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x21, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x22, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x24, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x25, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x26, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x28, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x29, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2a, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2b, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2c, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2d, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2e, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2f, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x30, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x31, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x32, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x33, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x34, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x36, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x37, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x38, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x39, 0x3),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type snbep_uncore_ubox = {
+ .name = "ubox",
+ .num_counters = 2,
+ .num_boxes = 1,
+ .perf_ctr_bits = 44,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = SNBEP_U_MSR_PMON_CTR0,
+ .event_ctl = SNBEP_U_MSR_PMON_CTL0,
+ .event_mask = SNBEP_U_MSR_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = SNBEP_U_MSR_PMON_UCLK_FIXED_CTR,
+ .fixed_ctl = SNBEP_U_MSR_PMON_UCLK_FIXED_CTL,
+ .ops = &snbep_uncore_msr_ops,
+ .format_group = &snbep_uncore_ubox_format_group,
+};
+
+static struct extra_reg snbep_uncore_cbox_extra_regs[] = {
+ SNBEP_CBO_EVENT_EXTRA_REG(SNBEP_CBO_PMON_CTL_TID_EN,
+ SNBEP_CBO_PMON_CTL_TID_EN, 0x1),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0334, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4334, 0xffff, 0x6),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0534, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4534, 0xffff, 0x6),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0934, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4934, 0xffff, 0x6),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4134, 0xffff, 0x6),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0135, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0335, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4135, 0xffff, 0xa),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4335, 0xffff, 0xa),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4435, 0xffff, 0x2),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4835, 0xffff, 0x2),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4a35, 0xffff, 0x2),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x5035, 0xffff, 0x2),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0136, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0336, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4136, 0xffff, 0xa),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4336, 0xffff, 0xa),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4436, 0xffff, 0x2),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4836, 0xffff, 0x2),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4a36, 0xffff, 0x2),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4037, 0x40ff, 0x2),
+ EVENT_EXTRA_END
+};
+
+static void snbep_cbox_put_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct intel_uncore_extra_reg *er = &box->shared_regs[0];
+ int i;
+
+ if (uncore_box_is_fake(box))
+ return;
+
+ for (i = 0; i < 5; i++) {
+ if (reg1->alloc & (0x1 << i))
+ atomic_sub(1 << (i * 6), &er->ref);
+ }
+ reg1->alloc = 0;
+}
+
+static struct event_constraint *
+__snbep_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event,
+ u64 (*cbox_filter_mask)(int fields))
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct intel_uncore_extra_reg *er = &box->shared_regs[0];
+ int i, alloc = 0;
+ unsigned long flags;
+ u64 mask;
+
+ if (reg1->idx == EXTRA_REG_NONE)
+ return NULL;
+
+ raw_spin_lock_irqsave(&er->lock, flags);
+ for (i = 0; i < 5; i++) {
+ if (!(reg1->idx & (0x1 << i)))
+ continue;
+ if (!uncore_box_is_fake(box) && (reg1->alloc & (0x1 << i)))
+ continue;
+
+ mask = cbox_filter_mask(0x1 << i);
+ if (!__BITS_VALUE(atomic_read(&er->ref), i, 6) ||
+ !((reg1->config ^ er->config) & mask)) {
+ atomic_add(1 << (i * 6), &er->ref);
+ er->config &= ~mask;
+ er->config |= reg1->config & mask;
+ alloc |= (0x1 << i);
+ } else {
+ break;
+ }
+ }
+ raw_spin_unlock_irqrestore(&er->lock, flags);
+ if (i < 5)
+ goto fail;
+
+ if (!uncore_box_is_fake(box))
+ reg1->alloc |= alloc;
+
+ return NULL;
+fail:
+ for (; i >= 0; i--) {
+ if (alloc & (0x1 << i))
+ atomic_sub(1 << (i * 6), &er->ref);
+ }
+ return &uncore_constraint_empty;
+}
+
+static u64 snbep_cbox_filter_mask(int fields)
+{
+ u64 mask = 0;
+
+ if (fields & 0x1)
+ mask |= SNBEP_CB0_MSR_PMON_BOX_FILTER_TID;
+ if (fields & 0x2)
+ mask |= SNBEP_CB0_MSR_PMON_BOX_FILTER_NID;
+ if (fields & 0x4)
+ mask |= SNBEP_CB0_MSR_PMON_BOX_FILTER_STATE;
+ if (fields & 0x8)
+ mask |= SNBEP_CB0_MSR_PMON_BOX_FILTER_OPC;
+
+ return mask;
+}
+
+static struct event_constraint *
+snbep_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ return __snbep_cbox_get_constraint(box, event, snbep_cbox_filter_mask);
+}
+
+static int snbep_cbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct extra_reg *er;
+ int idx = 0;
+
+ for (er = snbep_uncore_cbox_extra_regs; er->msr; er++) {
+ if (er->event != (event->hw.config & er->config_mask))
+ continue;
+ idx |= er->idx;
+ }
+
+ if (idx) {
+ reg1->reg = SNBEP_C0_MSR_PMON_BOX_FILTER +
+ SNBEP_CBO_MSR_OFFSET * box->pmu->pmu_idx;
+ reg1->config = event->attr.config1 & snbep_cbox_filter_mask(idx);
+ reg1->idx = idx;
+ }
+ return 0;
+}
+
+static struct intel_uncore_ops snbep_uncore_cbox_ops = {
+ SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
+ .hw_config = snbep_cbox_hw_config,
+ .get_constraint = snbep_cbox_get_constraint,
+ .put_constraint = snbep_cbox_put_constraint,
+};
+
+static struct intel_uncore_type snbep_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 4,
+ .num_boxes = 8,
+ .perf_ctr_bits = 44,
+ .event_ctl = SNBEP_C0_MSR_PMON_CTL0,
+ .perf_ctr = SNBEP_C0_MSR_PMON_CTR0,
+ .event_mask = SNBEP_CBO_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_C0_MSR_PMON_BOX_CTL,
+ .msr_offset = SNBEP_CBO_MSR_OFFSET,
+ .num_shared_regs = 1,
+ .constraints = snbep_uncore_cbox_constraints,
+ .ops = &snbep_uncore_cbox_ops,
+ .format_group = &snbep_uncore_cbox_format_group,
+};
+
+static u64 snbep_pcu_alter_er(struct perf_event *event, int new_idx, bool modify)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ u64 config = reg1->config;
+
+ if (new_idx > reg1->idx)
+ config <<= 8 * (new_idx - reg1->idx);
+ else
+ config >>= 8 * (reg1->idx - new_idx);
+
+ if (modify) {
+ hwc->config += new_idx - reg1->idx;
+ reg1->config = config;
+ reg1->idx = new_idx;
+ }
+ return config;
+}
+
+static struct event_constraint *
+snbep_pcu_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct intel_uncore_extra_reg *er = &box->shared_regs[0];
+ unsigned long flags;
+ int idx = reg1->idx;
+ u64 mask, config1 = reg1->config;
+ bool ok = false;
+
+ if (reg1->idx == EXTRA_REG_NONE ||
+ (!uncore_box_is_fake(box) && reg1->alloc))
+ return NULL;
+again:
+ mask = 0xffULL << (idx * 8);
+ raw_spin_lock_irqsave(&er->lock, flags);
+ if (!__BITS_VALUE(atomic_read(&er->ref), idx, 8) ||
+ !((config1 ^ er->config) & mask)) {
+ atomic_add(1 << (idx * 8), &er->ref);
+ er->config &= ~mask;
+ er->config |= config1 & mask;
+ ok = true;
+ }
+ raw_spin_unlock_irqrestore(&er->lock, flags);
+
+ if (!ok) {
+ idx = (idx + 1) % 4;
+ if (idx != reg1->idx) {
+ config1 = snbep_pcu_alter_er(event, idx, false);
+ goto again;
+ }
+ return &uncore_constraint_empty;
+ }
+
+ if (!uncore_box_is_fake(box)) {
+ if (idx != reg1->idx)
+ snbep_pcu_alter_er(event, idx, true);
+ reg1->alloc = 1;
+ }
+ return NULL;
+}
+
+static void snbep_pcu_put_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct intel_uncore_extra_reg *er = &box->shared_regs[0];
+
+ if (uncore_box_is_fake(box) || !reg1->alloc)
+ return;
+
+ atomic_sub(1 << (reg1->idx * 8), &er->ref);
+ reg1->alloc = 0;
+}
+
+static int snbep_pcu_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ int ev_sel = hwc->config & SNBEP_PMON_CTL_EV_SEL_MASK;
+
+ if (ev_sel >= 0xb && ev_sel <= 0xe) {
+ reg1->reg = SNBEP_PCU_MSR_PMON_BOX_FILTER;
+ reg1->idx = ev_sel - 0xb;
+ reg1->config = event->attr.config1 & (0xff << (reg1->idx * 8));
+ }
+ return 0;
+}
+
+static struct intel_uncore_ops snbep_uncore_pcu_ops = {
+ SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
+ .hw_config = snbep_pcu_hw_config,
+ .get_constraint = snbep_pcu_get_constraint,
+ .put_constraint = snbep_pcu_put_constraint,
+};
+
+static struct intel_uncore_type snbep_uncore_pcu = {
+ .name = "pcu",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNBEP_PCU_MSR_PMON_CTR0,
+ .event_ctl = SNBEP_PCU_MSR_PMON_CTL0,
+ .event_mask = SNBEP_PCU_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCU_MSR_PMON_BOX_CTL,
+ .num_shared_regs = 1,
+ .ops = &snbep_uncore_pcu_ops,
+ .format_group = &snbep_uncore_pcu_format_group,
+};
+
+static struct intel_uncore_type *snbep_msr_uncores[] = {
+ &snbep_uncore_ubox,
+ &snbep_uncore_cbox,
+ &snbep_uncore_pcu,
+ NULL,
+};
+
+void snbep_uncore_cpu_init(void)
+{
+ if (snbep_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
+ snbep_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
+ uncore_msr_uncores = snbep_msr_uncores;
+}
+
+enum {
+ SNBEP_PCI_QPI_PORT0_FILTER,
+ SNBEP_PCI_QPI_PORT1_FILTER,
+ BDX_PCI_QPI_PORT2_FILTER,
+};
+
+static int snbep_qpi_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
+
+ if ((hwc->config & SNBEP_PMON_CTL_EV_SEL_MASK) == 0x38) {
+ reg1->idx = 0;
+ reg1->reg = SNBEP_Q_Py_PCI_PMON_PKT_MATCH0;
+ reg1->config = event->attr.config1;
+ reg2->reg = SNBEP_Q_Py_PCI_PMON_PKT_MASK0;
+ reg2->config = event->attr.config2;
+ }
+ return 0;
+}
+
+static void snbep_qpi_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ struct hw_perf_event_extra *reg2 = &hwc->branch_reg;
+
+ if (reg1->idx != EXTRA_REG_NONE) {
+ int idx = box->pmu->pmu_idx + SNBEP_PCI_QPI_PORT0_FILTER;
+ int die = box->dieid;
+ struct pci_dev *filter_pdev = uncore_extra_pci_dev[die].dev[idx];
+
+ if (filter_pdev) {
+ pci_write_config_dword(filter_pdev, reg1->reg,
+ (u32)reg1->config);
+ pci_write_config_dword(filter_pdev, reg1->reg + 4,
+ (u32)(reg1->config >> 32));
+ pci_write_config_dword(filter_pdev, reg2->reg,
+ (u32)reg2->config);
+ pci_write_config_dword(filter_pdev, reg2->reg + 4,
+ (u32)(reg2->config >> 32));
+ }
+ }
+
+ pci_write_config_dword(pdev, hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static struct intel_uncore_ops snbep_uncore_qpi_ops = {
+ SNBEP_UNCORE_PCI_OPS_COMMON_INIT(),
+ .enable_event = snbep_qpi_enable_event,
+ .hw_config = snbep_qpi_hw_config,
+ .get_constraint = uncore_get_constraint,
+ .put_constraint = uncore_put_constraint,
+};
+
+#define SNBEP_UNCORE_PCI_COMMON_INIT() \
+ .perf_ctr = SNBEP_PCI_PMON_CTR0, \
+ .event_ctl = SNBEP_PCI_PMON_CTL0, \
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK, \
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL, \
+ .ops = &snbep_uncore_pci_ops, \
+ .format_group = &snbep_uncore_format_group
+
+static struct intel_uncore_type snbep_uncore_ha = {
+ .name = "ha",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type snbep_uncore_imc = {
+ .name = "imc",
+ .num_counters = 4,
+ .num_boxes = 4,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = SNBEP_MC_CHy_PCI_PMON_FIXED_CTR,
+ .fixed_ctl = SNBEP_MC_CHy_PCI_PMON_FIXED_CTL,
+ .event_descs = snbep_uncore_imc_events,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type snbep_uncore_qpi = {
+ .name = "qpi",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNBEP_PCI_PMON_CTR0,
+ .event_ctl = SNBEP_PCI_PMON_CTL0,
+ .event_mask = SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .num_shared_regs = 1,
+ .ops = &snbep_uncore_qpi_ops,
+ .event_descs = snbep_uncore_qpi_events,
+ .format_group = &snbep_uncore_qpi_format_group,
+};
+
+
+static struct intel_uncore_type snbep_uncore_r2pcie = {
+ .name = "r2pcie",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 44,
+ .constraints = snbep_uncore_r2pcie_constraints,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type snbep_uncore_r3qpi = {
+ .name = "r3qpi",
+ .num_counters = 3,
+ .num_boxes = 2,
+ .perf_ctr_bits = 44,
+ .constraints = snbep_uncore_r3qpi_constraints,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+enum {
+ SNBEP_PCI_UNCORE_HA,
+ SNBEP_PCI_UNCORE_IMC,
+ SNBEP_PCI_UNCORE_QPI,
+ SNBEP_PCI_UNCORE_R2PCIE,
+ SNBEP_PCI_UNCORE_R3QPI,
+};
+
+static struct intel_uncore_type *snbep_pci_uncores[] = {
+ [SNBEP_PCI_UNCORE_HA] = &snbep_uncore_ha,
+ [SNBEP_PCI_UNCORE_IMC] = &snbep_uncore_imc,
+ [SNBEP_PCI_UNCORE_QPI] = &snbep_uncore_qpi,
+ [SNBEP_PCI_UNCORE_R2PCIE] = &snbep_uncore_r2pcie,
+ [SNBEP_PCI_UNCORE_R3QPI] = &snbep_uncore_r3qpi,
+ NULL,
+};
+
+static const struct pci_device_id snbep_uncore_pci_ids[] = {
+ { /* Home Agent */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_HA),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_HA, 0),
+ },
+ { /* MC Channel 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC0),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 0),
+ },
+ { /* MC Channel 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC1),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 1),
+ },
+ { /* MC Channel 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC2),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 2),
+ },
+ { /* MC Channel 3 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_IMC3),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_IMC, 3),
+ },
+ { /* QPI Port 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_QPI0),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_QPI, 0),
+ },
+ { /* QPI Port 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_QPI1),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_QPI, 1),
+ },
+ { /* R2PCIe */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R2PCIE),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_R2PCIE, 0),
+ },
+ { /* R3QPI Link 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI0),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_R3QPI, 0),
+ },
+ { /* R3QPI Link 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_UNC_R3QPI1),
+ .driver_data = UNCORE_PCI_DEV_DATA(SNBEP_PCI_UNCORE_R3QPI, 1),
+ },
+ { /* QPI Port 0 filter */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3c86),
+ .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+ SNBEP_PCI_QPI_PORT0_FILTER),
+ },
+ { /* QPI Port 0 filter */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3c96),
+ .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+ SNBEP_PCI_QPI_PORT1_FILTER),
+ },
+ { /* end: all zeroes */ }
+};
+
+static struct pci_driver snbep_uncore_pci_driver = {
+ .name = "snbep_uncore",
+ .id_table = snbep_uncore_pci_ids,
+};
+
+#define NODE_ID_MASK 0x7
+
+/* Each three bits from 0 to 23 of GIDNIDMAP register correspond Node ID. */
+#define GIDNIDMAP(config, id) (((config) >> (3 * (id))) & 0x7)
+
+static int upi_nodeid_groupid(struct pci_dev *ubox_dev, int nodeid_loc, int idmap_loc,
+ int *nodeid, int *groupid)
+{
+ int ret;
+
+ /* get the Node ID of the local register */
+ ret = pci_read_config_dword(ubox_dev, nodeid_loc, nodeid);
+ if (ret)
+ goto err;
+
+ *nodeid = *nodeid & NODE_ID_MASK;
+ /* get the Node ID mapping */
+ ret = pci_read_config_dword(ubox_dev, idmap_loc, groupid);
+ if (ret)
+ goto err;
+err:
+ return ret;
+}
+
+/*
+ * build pci bus to socket mapping
+ */
+static int snbep_pci2phy_map_init(int devid, int nodeid_loc, int idmap_loc, bool reverse)
+{
+ struct pci_dev *ubox_dev = NULL;
+ int i, bus, nodeid, segment, die_id;
+ struct pci2phy_map *map;
+ int err = 0;
+ u32 config = 0;
+
+ while (1) {
+ /* find the UBOX device */
+ ubox_dev = pci_get_device(PCI_VENDOR_ID_INTEL, devid, ubox_dev);
+ if (!ubox_dev)
+ break;
+ bus = ubox_dev->bus->number;
+ /*
+ * The nodeid and idmap registers only contain enough
+ * information to handle 8 nodes. On systems with more
+ * than 8 nodes, we need to rely on NUMA information,
+ * filled in from BIOS supplied information, to determine
+ * the topology.
+ */
+ if (nr_node_ids <= 8) {
+ err = upi_nodeid_groupid(ubox_dev, nodeid_loc, idmap_loc,
+ &nodeid, &config);
+ if (err)
+ break;
+
+ segment = pci_domain_nr(ubox_dev->bus);
+ raw_spin_lock(&pci2phy_map_lock);
+ map = __find_pci2phy_map(segment);
+ if (!map) {
+ raw_spin_unlock(&pci2phy_map_lock);
+ err = -ENOMEM;
+ break;
+ }
+
+ /*
+ * every three bits in the Node ID mapping register maps
+ * to a particular node.
+ */
+ for (i = 0; i < 8; i++) {
+ if (nodeid == GIDNIDMAP(config, i)) {
+ if (topology_max_die_per_package() > 1)
+ die_id = i;
+ else
+ die_id = topology_phys_to_logical_pkg(i);
+ if (die_id < 0)
+ die_id = -ENODEV;
+ map->pbus_to_dieid[bus] = die_id;
+ break;
+ }
+ }
+ raw_spin_unlock(&pci2phy_map_lock);
+ } else {
+ segment = pci_domain_nr(ubox_dev->bus);
+ raw_spin_lock(&pci2phy_map_lock);
+ map = __find_pci2phy_map(segment);
+ if (!map) {
+ raw_spin_unlock(&pci2phy_map_lock);
+ err = -ENOMEM;
+ break;
+ }
+
+ map->pbus_to_dieid[bus] = die_id = uncore_device_to_die(ubox_dev);
+
+ raw_spin_unlock(&pci2phy_map_lock);
+
+ if (WARN_ON_ONCE(die_id == -1)) {
+ err = -EINVAL;
+ break;
+ }
+ }
+ }
+
+ if (!err) {
+ /*
+ * For PCI bus with no UBOX device, find the next bus
+ * that has UBOX device and use its mapping.
+ */
+ raw_spin_lock(&pci2phy_map_lock);
+ list_for_each_entry(map, &pci2phy_map_head, list) {
+ i = -1;
+ if (reverse) {
+ for (bus = 255; bus >= 0; bus--) {
+ if (map->pbus_to_dieid[bus] != -1)
+ i = map->pbus_to_dieid[bus];
+ else
+ map->pbus_to_dieid[bus] = i;
+ }
+ } else {
+ for (bus = 0; bus <= 255; bus++) {
+ if (map->pbus_to_dieid[bus] != -1)
+ i = map->pbus_to_dieid[bus];
+ else
+ map->pbus_to_dieid[bus] = i;
+ }
+ }
+ }
+ raw_spin_unlock(&pci2phy_map_lock);
+ }
+
+ pci_dev_put(ubox_dev);
+
+ return err ? pcibios_err_to_errno(err) : 0;
+}
+
+int snbep_uncore_pci_init(void)
+{
+ int ret = snbep_pci2phy_map_init(0x3ce0, SNBEP_CPUNODEID, SNBEP_GIDNIDMAP, true);
+ if (ret)
+ return ret;
+ uncore_pci_uncores = snbep_pci_uncores;
+ uncore_pci_driver = &snbep_uncore_pci_driver;
+ return 0;
+}
+/* end of Sandy Bridge-EP uncore support */
+
+/* IvyTown uncore support */
+static void ivbep_uncore_msr_init_box(struct intel_uncore_box *box)
+{
+ unsigned msr = uncore_msr_box_ctl(box);
+ if (msr)
+ wrmsrl(msr, IVBEP_PMON_BOX_CTL_INT);
+}
+
+static void ivbep_uncore_pci_init_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+
+ pci_write_config_dword(pdev, SNBEP_PCI_PMON_BOX_CTL, IVBEP_PMON_BOX_CTL_INT);
+}
+
+#define IVBEP_UNCORE_MSR_OPS_COMMON_INIT() \
+ .init_box = ivbep_uncore_msr_init_box, \
+ .disable_box = snbep_uncore_msr_disable_box, \
+ .enable_box = snbep_uncore_msr_enable_box, \
+ .disable_event = snbep_uncore_msr_disable_event, \
+ .enable_event = snbep_uncore_msr_enable_event, \
+ .read_counter = uncore_msr_read_counter
+
+static struct intel_uncore_ops ivbep_uncore_msr_ops = {
+ IVBEP_UNCORE_MSR_OPS_COMMON_INIT(),
+};
+
+static struct intel_uncore_ops ivbep_uncore_pci_ops = {
+ .init_box = ivbep_uncore_pci_init_box,
+ .disable_box = snbep_uncore_pci_disable_box,
+ .enable_box = snbep_uncore_pci_enable_box,
+ .disable_event = snbep_uncore_pci_disable_event,
+ .enable_event = snbep_uncore_pci_enable_event,
+ .read_counter = snbep_uncore_pci_read_counter,
+};
+
+#define IVBEP_UNCORE_PCI_COMMON_INIT() \
+ .perf_ctr = SNBEP_PCI_PMON_CTR0, \
+ .event_ctl = SNBEP_PCI_PMON_CTL0, \
+ .event_mask = IVBEP_PMON_RAW_EVENT_MASK, \
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL, \
+ .ops = &ivbep_uncore_pci_ops, \
+ .format_group = &ivbep_uncore_format_group
+
+static struct attribute *ivbep_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static struct attribute *ivbep_uncore_ubox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh5.attr,
+ NULL,
+};
+
+static struct attribute *ivbep_uncore_cbox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_tid_en.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_filter_tid.attr,
+ &format_attr_filter_link.attr,
+ &format_attr_filter_state2.attr,
+ &format_attr_filter_nid2.attr,
+ &format_attr_filter_opc2.attr,
+ &format_attr_filter_nc.attr,
+ &format_attr_filter_c6.attr,
+ &format_attr_filter_isoc.attr,
+ NULL,
+};
+
+static struct attribute *ivbep_uncore_pcu_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_occ_sel.attr,
+ &format_attr_edge.attr,
+ &format_attr_thresh5.attr,
+ &format_attr_occ_invert.attr,
+ &format_attr_occ_edge.attr,
+ &format_attr_filter_band0.attr,
+ &format_attr_filter_band1.attr,
+ &format_attr_filter_band2.attr,
+ &format_attr_filter_band3.attr,
+ NULL,
+};
+
+static struct attribute *ivbep_uncore_qpi_formats_attr[] = {
+ &format_attr_event_ext.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_match_rds.attr,
+ &format_attr_match_rnid30.attr,
+ &format_attr_match_rnid4.attr,
+ &format_attr_match_dnid.attr,
+ &format_attr_match_mc.attr,
+ &format_attr_match_opc.attr,
+ &format_attr_match_vnw.attr,
+ &format_attr_match0.attr,
+ &format_attr_match1.attr,
+ &format_attr_mask_rds.attr,
+ &format_attr_mask_rnid30.attr,
+ &format_attr_mask_rnid4.attr,
+ &format_attr_mask_dnid.attr,
+ &format_attr_mask_mc.attr,
+ &format_attr_mask_opc.attr,
+ &format_attr_mask_vnw.attr,
+ &format_attr_mask0.attr,
+ &format_attr_mask1.attr,
+ NULL,
+};
+
+static const struct attribute_group ivbep_uncore_format_group = {
+ .name = "format",
+ .attrs = ivbep_uncore_formats_attr,
+};
+
+static const struct attribute_group ivbep_uncore_ubox_format_group = {
+ .name = "format",
+ .attrs = ivbep_uncore_ubox_formats_attr,
+};
+
+static const struct attribute_group ivbep_uncore_cbox_format_group = {
+ .name = "format",
+ .attrs = ivbep_uncore_cbox_formats_attr,
+};
+
+static const struct attribute_group ivbep_uncore_pcu_format_group = {
+ .name = "format",
+ .attrs = ivbep_uncore_pcu_formats_attr,
+};
+
+static const struct attribute_group ivbep_uncore_qpi_format_group = {
+ .name = "format",
+ .attrs = ivbep_uncore_qpi_formats_attr,
+};
+
+static struct intel_uncore_type ivbep_uncore_ubox = {
+ .name = "ubox",
+ .num_counters = 2,
+ .num_boxes = 1,
+ .perf_ctr_bits = 44,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = SNBEP_U_MSR_PMON_CTR0,
+ .event_ctl = SNBEP_U_MSR_PMON_CTL0,
+ .event_mask = IVBEP_U_MSR_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = SNBEP_U_MSR_PMON_UCLK_FIXED_CTR,
+ .fixed_ctl = SNBEP_U_MSR_PMON_UCLK_FIXED_CTL,
+ .ops = &ivbep_uncore_msr_ops,
+ .format_group = &ivbep_uncore_ubox_format_group,
+};
+
+static struct extra_reg ivbep_uncore_cbox_extra_regs[] = {
+ SNBEP_CBO_EVENT_EXTRA_REG(SNBEP_CBO_PMON_CTL_TID_EN,
+ SNBEP_CBO_PMON_CTL_TID_EN, 0x1),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x1031, 0x10ff, 0x2),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x1134, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4134, 0xffff, 0xc),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x5134, 0xffff, 0xc),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0334, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4334, 0xffff, 0xc),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0534, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4534, 0xffff, 0xc),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0934, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4934, 0xffff, 0xc),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0135, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0335, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x2135, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x2335, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4135, 0xffff, 0x18),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4335, 0xffff, 0x18),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4435, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4835, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4a35, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x5035, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x8135, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x8335, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0136, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0336, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x2136, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x2336, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4136, 0xffff, 0x18),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4336, 0xffff, 0x18),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4436, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4836, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4a36, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x5036, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x8136, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x8336, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4037, 0x40ff, 0x8),
+ EVENT_EXTRA_END
+};
+
+static u64 ivbep_cbox_filter_mask(int fields)
+{
+ u64 mask = 0;
+
+ if (fields & 0x1)
+ mask |= IVBEP_CB0_MSR_PMON_BOX_FILTER_TID;
+ if (fields & 0x2)
+ mask |= IVBEP_CB0_MSR_PMON_BOX_FILTER_LINK;
+ if (fields & 0x4)
+ mask |= IVBEP_CB0_MSR_PMON_BOX_FILTER_STATE;
+ if (fields & 0x8)
+ mask |= IVBEP_CB0_MSR_PMON_BOX_FILTER_NID;
+ if (fields & 0x10) {
+ mask |= IVBEP_CB0_MSR_PMON_BOX_FILTER_OPC;
+ mask |= IVBEP_CB0_MSR_PMON_BOX_FILTER_NC;
+ mask |= IVBEP_CB0_MSR_PMON_BOX_FILTER_C6;
+ mask |= IVBEP_CB0_MSR_PMON_BOX_FILTER_ISOC;
+ }
+
+ return mask;
+}
+
+static struct event_constraint *
+ivbep_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ return __snbep_cbox_get_constraint(box, event, ivbep_cbox_filter_mask);
+}
+
+static int ivbep_cbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct extra_reg *er;
+ int idx = 0;
+
+ for (er = ivbep_uncore_cbox_extra_regs; er->msr; er++) {
+ if (er->event != (event->hw.config & er->config_mask))
+ continue;
+ idx |= er->idx;
+ }
+
+ if (idx) {
+ reg1->reg = SNBEP_C0_MSR_PMON_BOX_FILTER +
+ SNBEP_CBO_MSR_OFFSET * box->pmu->pmu_idx;
+ reg1->config = event->attr.config1 & ivbep_cbox_filter_mask(idx);
+ reg1->idx = idx;
+ }
+ return 0;
+}
+
+static void ivbep_cbox_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+
+ if (reg1->idx != EXTRA_REG_NONE) {
+ u64 filter = uncore_shared_reg_config(box, 0);
+ wrmsrl(reg1->reg, filter & 0xffffffff);
+ wrmsrl(reg1->reg + 6, filter >> 32);
+ }
+
+ wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static struct intel_uncore_ops ivbep_uncore_cbox_ops = {
+ .init_box = ivbep_uncore_msr_init_box,
+ .disable_box = snbep_uncore_msr_disable_box,
+ .enable_box = snbep_uncore_msr_enable_box,
+ .disable_event = snbep_uncore_msr_disable_event,
+ .enable_event = ivbep_cbox_enable_event,
+ .read_counter = uncore_msr_read_counter,
+ .hw_config = ivbep_cbox_hw_config,
+ .get_constraint = ivbep_cbox_get_constraint,
+ .put_constraint = snbep_cbox_put_constraint,
+};
+
+static struct intel_uncore_type ivbep_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 4,
+ .num_boxes = 15,
+ .perf_ctr_bits = 44,
+ .event_ctl = SNBEP_C0_MSR_PMON_CTL0,
+ .perf_ctr = SNBEP_C0_MSR_PMON_CTR0,
+ .event_mask = IVBEP_CBO_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_C0_MSR_PMON_BOX_CTL,
+ .msr_offset = SNBEP_CBO_MSR_OFFSET,
+ .num_shared_regs = 1,
+ .constraints = snbep_uncore_cbox_constraints,
+ .ops = &ivbep_uncore_cbox_ops,
+ .format_group = &ivbep_uncore_cbox_format_group,
+};
+
+static struct intel_uncore_ops ivbep_uncore_pcu_ops = {
+ IVBEP_UNCORE_MSR_OPS_COMMON_INIT(),
+ .hw_config = snbep_pcu_hw_config,
+ .get_constraint = snbep_pcu_get_constraint,
+ .put_constraint = snbep_pcu_put_constraint,
+};
+
+static struct intel_uncore_type ivbep_uncore_pcu = {
+ .name = "pcu",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNBEP_PCU_MSR_PMON_CTR0,
+ .event_ctl = SNBEP_PCU_MSR_PMON_CTL0,
+ .event_mask = IVBEP_PCU_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCU_MSR_PMON_BOX_CTL,
+ .num_shared_regs = 1,
+ .ops = &ivbep_uncore_pcu_ops,
+ .format_group = &ivbep_uncore_pcu_format_group,
+};
+
+static struct intel_uncore_type *ivbep_msr_uncores[] = {
+ &ivbep_uncore_ubox,
+ &ivbep_uncore_cbox,
+ &ivbep_uncore_pcu,
+ NULL,
+};
+
+void ivbep_uncore_cpu_init(void)
+{
+ if (ivbep_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
+ ivbep_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
+ uncore_msr_uncores = ivbep_msr_uncores;
+}
+
+static struct intel_uncore_type ivbep_uncore_ha = {
+ .name = "ha",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ IVBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type ivbep_uncore_imc = {
+ .name = "imc",
+ .num_counters = 4,
+ .num_boxes = 8,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = SNBEP_MC_CHy_PCI_PMON_FIXED_CTR,
+ .fixed_ctl = SNBEP_MC_CHy_PCI_PMON_FIXED_CTL,
+ .event_descs = snbep_uncore_imc_events,
+ IVBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+/* registers in IRP boxes are not properly aligned */
+static unsigned ivbep_uncore_irp_ctls[] = {0xd8, 0xdc, 0xe0, 0xe4};
+static unsigned ivbep_uncore_irp_ctrs[] = {0xa0, 0xb0, 0xb8, 0xc0};
+
+static void ivbep_uncore_irp_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+
+ pci_write_config_dword(pdev, ivbep_uncore_irp_ctls[hwc->idx],
+ hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static void ivbep_uncore_irp_disable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+
+ pci_write_config_dword(pdev, ivbep_uncore_irp_ctls[hwc->idx], hwc->config);
+}
+
+static u64 ivbep_uncore_irp_read_counter(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+ u64 count = 0;
+
+ pci_read_config_dword(pdev, ivbep_uncore_irp_ctrs[hwc->idx], (u32 *)&count);
+ pci_read_config_dword(pdev, ivbep_uncore_irp_ctrs[hwc->idx] + 4, (u32 *)&count + 1);
+
+ return count;
+}
+
+static struct intel_uncore_ops ivbep_uncore_irp_ops = {
+ .init_box = ivbep_uncore_pci_init_box,
+ .disable_box = snbep_uncore_pci_disable_box,
+ .enable_box = snbep_uncore_pci_enable_box,
+ .disable_event = ivbep_uncore_irp_disable_event,
+ .enable_event = ivbep_uncore_irp_enable_event,
+ .read_counter = ivbep_uncore_irp_read_counter,
+};
+
+static struct intel_uncore_type ivbep_uncore_irp = {
+ .name = "irp",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .event_mask = IVBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .ops = &ivbep_uncore_irp_ops,
+ .format_group = &ivbep_uncore_format_group,
+};
+
+static struct intel_uncore_ops ivbep_uncore_qpi_ops = {
+ .init_box = ivbep_uncore_pci_init_box,
+ .disable_box = snbep_uncore_pci_disable_box,
+ .enable_box = snbep_uncore_pci_enable_box,
+ .disable_event = snbep_uncore_pci_disable_event,
+ .enable_event = snbep_qpi_enable_event,
+ .read_counter = snbep_uncore_pci_read_counter,
+ .hw_config = snbep_qpi_hw_config,
+ .get_constraint = uncore_get_constraint,
+ .put_constraint = uncore_put_constraint,
+};
+
+static struct intel_uncore_type ivbep_uncore_qpi = {
+ .name = "qpi",
+ .num_counters = 4,
+ .num_boxes = 3,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNBEP_PCI_PMON_CTR0,
+ .event_ctl = SNBEP_PCI_PMON_CTL0,
+ .event_mask = IVBEP_QPI_PCI_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .num_shared_regs = 1,
+ .ops = &ivbep_uncore_qpi_ops,
+ .format_group = &ivbep_uncore_qpi_format_group,
+};
+
+static struct intel_uncore_type ivbep_uncore_r2pcie = {
+ .name = "r2pcie",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 44,
+ .constraints = snbep_uncore_r2pcie_constraints,
+ IVBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type ivbep_uncore_r3qpi = {
+ .name = "r3qpi",
+ .num_counters = 3,
+ .num_boxes = 2,
+ .perf_ctr_bits = 44,
+ .constraints = snbep_uncore_r3qpi_constraints,
+ IVBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+enum {
+ IVBEP_PCI_UNCORE_HA,
+ IVBEP_PCI_UNCORE_IMC,
+ IVBEP_PCI_UNCORE_IRP,
+ IVBEP_PCI_UNCORE_QPI,
+ IVBEP_PCI_UNCORE_R2PCIE,
+ IVBEP_PCI_UNCORE_R3QPI,
+};
+
+static struct intel_uncore_type *ivbep_pci_uncores[] = {
+ [IVBEP_PCI_UNCORE_HA] = &ivbep_uncore_ha,
+ [IVBEP_PCI_UNCORE_IMC] = &ivbep_uncore_imc,
+ [IVBEP_PCI_UNCORE_IRP] = &ivbep_uncore_irp,
+ [IVBEP_PCI_UNCORE_QPI] = &ivbep_uncore_qpi,
+ [IVBEP_PCI_UNCORE_R2PCIE] = &ivbep_uncore_r2pcie,
+ [IVBEP_PCI_UNCORE_R3QPI] = &ivbep_uncore_r3qpi,
+ NULL,
+};
+
+static const struct pci_device_id ivbep_uncore_pci_ids[] = {
+ { /* Home Agent 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe30),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_HA, 0),
+ },
+ { /* Home Agent 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe38),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_HA, 1),
+ },
+ { /* MC0 Channel 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb4),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_IMC, 0),
+ },
+ { /* MC0 Channel 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb5),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_IMC, 1),
+ },
+ { /* MC0 Channel 3 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb0),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_IMC, 2),
+ },
+ { /* MC0 Channel 4 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xeb1),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_IMC, 3),
+ },
+ { /* MC1 Channel 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef4),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_IMC, 4),
+ },
+ { /* MC1 Channel 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef5),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_IMC, 5),
+ },
+ { /* MC1 Channel 3 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef0),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_IMC, 6),
+ },
+ { /* MC1 Channel 4 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef1),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_IMC, 7),
+ },
+ { /* IRP */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe39),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_IRP, 0),
+ },
+ { /* QPI0 Port 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe32),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_QPI, 0),
+ },
+ { /* QPI0 Port 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe33),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_QPI, 1),
+ },
+ { /* QPI1 Port 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe3a),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_QPI, 2),
+ },
+ { /* R2PCIe */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe34),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_R2PCIE, 0),
+ },
+ { /* R3QPI0 Link 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe36),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_R3QPI, 0),
+ },
+ { /* R3QPI0 Link 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe37),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_R3QPI, 1),
+ },
+ { /* R3QPI1 Link 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe3e),
+ .driver_data = UNCORE_PCI_DEV_DATA(IVBEP_PCI_UNCORE_R3QPI, 2),
+ },
+ { /* QPI Port 0 filter */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe86),
+ .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+ SNBEP_PCI_QPI_PORT0_FILTER),
+ },
+ { /* QPI Port 0 filter */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe96),
+ .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+ SNBEP_PCI_QPI_PORT1_FILTER),
+ },
+ { /* end: all zeroes */ }
+};
+
+static struct pci_driver ivbep_uncore_pci_driver = {
+ .name = "ivbep_uncore",
+ .id_table = ivbep_uncore_pci_ids,
+};
+
+int ivbep_uncore_pci_init(void)
+{
+ int ret = snbep_pci2phy_map_init(0x0e1e, SNBEP_CPUNODEID, SNBEP_GIDNIDMAP, true);
+ if (ret)
+ return ret;
+ uncore_pci_uncores = ivbep_pci_uncores;
+ uncore_pci_driver = &ivbep_uncore_pci_driver;
+ return 0;
+}
+/* end of IvyTown uncore support */
+
+/* KNL uncore support */
+static struct attribute *knl_uncore_ubox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_tid_en.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh5.attr,
+ NULL,
+};
+
+static const struct attribute_group knl_uncore_ubox_format_group = {
+ .name = "format",
+ .attrs = knl_uncore_ubox_formats_attr,
+};
+
+static struct intel_uncore_type knl_uncore_ubox = {
+ .name = "ubox",
+ .num_counters = 2,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = HSWEP_U_MSR_PMON_CTR0,
+ .event_ctl = HSWEP_U_MSR_PMON_CTL0,
+ .event_mask = KNL_U_MSR_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = HSWEP_U_MSR_PMON_UCLK_FIXED_CTR,
+ .fixed_ctl = HSWEP_U_MSR_PMON_UCLK_FIXED_CTL,
+ .ops = &snbep_uncore_msr_ops,
+ .format_group = &knl_uncore_ubox_format_group,
+};
+
+static struct attribute *knl_uncore_cha_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_qor.attr,
+ &format_attr_edge.attr,
+ &format_attr_tid_en.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_filter_tid4.attr,
+ &format_attr_filter_link3.attr,
+ &format_attr_filter_state4.attr,
+ &format_attr_filter_local.attr,
+ &format_attr_filter_all_op.attr,
+ &format_attr_filter_nnm.attr,
+ &format_attr_filter_opc3.attr,
+ &format_attr_filter_nc.attr,
+ &format_attr_filter_isoc.attr,
+ NULL,
+};
+
+static const struct attribute_group knl_uncore_cha_format_group = {
+ .name = "format",
+ .attrs = knl_uncore_cha_formats_attr,
+};
+
+static struct event_constraint knl_uncore_cha_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x1f, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x36, 0x1),
+ EVENT_CONSTRAINT_END
+};
+
+static struct extra_reg knl_uncore_cha_extra_regs[] = {
+ SNBEP_CBO_EVENT_EXTRA_REG(SNBEP_CBO_PMON_CTL_TID_EN,
+ SNBEP_CBO_PMON_CTL_TID_EN, 0x1),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x3d, 0xff, 0x2),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x35, 0xff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x36, 0xff, 0x4),
+ EVENT_EXTRA_END
+};
+
+static u64 knl_cha_filter_mask(int fields)
+{
+ u64 mask = 0;
+
+ if (fields & 0x1)
+ mask |= KNL_CHA_MSR_PMON_BOX_FILTER_TID;
+ if (fields & 0x2)
+ mask |= KNL_CHA_MSR_PMON_BOX_FILTER_STATE;
+ if (fields & 0x4)
+ mask |= KNL_CHA_MSR_PMON_BOX_FILTER_OP;
+ return mask;
+}
+
+static struct event_constraint *
+knl_cha_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ return __snbep_cbox_get_constraint(box, event, knl_cha_filter_mask);
+}
+
+static int knl_cha_hw_config(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct extra_reg *er;
+ int idx = 0;
+
+ for (er = knl_uncore_cha_extra_regs; er->msr; er++) {
+ if (er->event != (event->hw.config & er->config_mask))
+ continue;
+ idx |= er->idx;
+ }
+
+ if (idx) {
+ reg1->reg = HSWEP_C0_MSR_PMON_BOX_FILTER0 +
+ KNL_CHA_MSR_OFFSET * box->pmu->pmu_idx;
+ reg1->config = event->attr.config1 & knl_cha_filter_mask(idx);
+
+ reg1->config |= KNL_CHA_MSR_PMON_BOX_FILTER_REMOTE_NODE;
+ reg1->config |= KNL_CHA_MSR_PMON_BOX_FILTER_LOCAL_NODE;
+ reg1->config |= KNL_CHA_MSR_PMON_BOX_FILTER_NNC;
+ reg1->idx = idx;
+ }
+ return 0;
+}
+
+static void hswep_cbox_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event);
+
+static struct intel_uncore_ops knl_uncore_cha_ops = {
+ .init_box = snbep_uncore_msr_init_box,
+ .disable_box = snbep_uncore_msr_disable_box,
+ .enable_box = snbep_uncore_msr_enable_box,
+ .disable_event = snbep_uncore_msr_disable_event,
+ .enable_event = hswep_cbox_enable_event,
+ .read_counter = uncore_msr_read_counter,
+ .hw_config = knl_cha_hw_config,
+ .get_constraint = knl_cha_get_constraint,
+ .put_constraint = snbep_cbox_put_constraint,
+};
+
+static struct intel_uncore_type knl_uncore_cha = {
+ .name = "cha",
+ .num_counters = 4,
+ .num_boxes = 38,
+ .perf_ctr_bits = 48,
+ .event_ctl = HSWEP_C0_MSR_PMON_CTL0,
+ .perf_ctr = HSWEP_C0_MSR_PMON_CTR0,
+ .event_mask = KNL_CHA_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = HSWEP_C0_MSR_PMON_BOX_CTL,
+ .msr_offset = KNL_CHA_MSR_OFFSET,
+ .num_shared_regs = 1,
+ .constraints = knl_uncore_cha_constraints,
+ .ops = &knl_uncore_cha_ops,
+ .format_group = &knl_uncore_cha_format_group,
+};
+
+static struct attribute *knl_uncore_pcu_formats_attr[] = {
+ &format_attr_event2.attr,
+ &format_attr_use_occ_ctr.attr,
+ &format_attr_occ_sel.attr,
+ &format_attr_edge.attr,
+ &format_attr_tid_en.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh6.attr,
+ &format_attr_occ_invert.attr,
+ &format_attr_occ_edge_det.attr,
+ NULL,
+};
+
+static const struct attribute_group knl_uncore_pcu_format_group = {
+ .name = "format",
+ .attrs = knl_uncore_pcu_formats_attr,
+};
+
+static struct intel_uncore_type knl_uncore_pcu = {
+ .name = "pcu",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .perf_ctr = HSWEP_PCU_MSR_PMON_CTR0,
+ .event_ctl = HSWEP_PCU_MSR_PMON_CTL0,
+ .event_mask = KNL_PCU_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = HSWEP_PCU_MSR_PMON_BOX_CTL,
+ .ops = &snbep_uncore_msr_ops,
+ .format_group = &knl_uncore_pcu_format_group,
+};
+
+static struct intel_uncore_type *knl_msr_uncores[] = {
+ &knl_uncore_ubox,
+ &knl_uncore_cha,
+ &knl_uncore_pcu,
+ NULL,
+};
+
+void knl_uncore_cpu_init(void)
+{
+ uncore_msr_uncores = knl_msr_uncores;
+}
+
+static void knl_uncore_imc_enable_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ int box_ctl = uncore_pci_box_ctl(box);
+
+ pci_write_config_dword(pdev, box_ctl, 0);
+}
+
+static void knl_uncore_imc_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+
+ if ((event->attr.config & SNBEP_PMON_CTL_EV_SEL_MASK)
+ == UNCORE_FIXED_EVENT)
+ pci_write_config_dword(pdev, hwc->config_base,
+ hwc->config | KNL_PMON_FIXED_CTL_EN);
+ else
+ pci_write_config_dword(pdev, hwc->config_base,
+ hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static struct intel_uncore_ops knl_uncore_imc_ops = {
+ .init_box = snbep_uncore_pci_init_box,
+ .disable_box = snbep_uncore_pci_disable_box,
+ .enable_box = knl_uncore_imc_enable_box,
+ .read_counter = snbep_uncore_pci_read_counter,
+ .enable_event = knl_uncore_imc_enable_event,
+ .disable_event = snbep_uncore_pci_disable_event,
+};
+
+static struct intel_uncore_type knl_uncore_imc_uclk = {
+ .name = "imc_uclk",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = KNL_UCLK_MSR_PMON_CTR0_LOW,
+ .event_ctl = KNL_UCLK_MSR_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = KNL_UCLK_MSR_PMON_UCLK_FIXED_LOW,
+ .fixed_ctl = KNL_UCLK_MSR_PMON_UCLK_FIXED_CTL,
+ .box_ctl = KNL_UCLK_MSR_PMON_BOX_CTL,
+ .ops = &knl_uncore_imc_ops,
+ .format_group = &snbep_uncore_format_group,
+};
+
+static struct intel_uncore_type knl_uncore_imc_dclk = {
+ .name = "imc",
+ .num_counters = 4,
+ .num_boxes = 6,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = KNL_MC0_CH0_MSR_PMON_CTR0_LOW,
+ .event_ctl = KNL_MC0_CH0_MSR_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = KNL_MC0_CH0_MSR_PMON_FIXED_LOW,
+ .fixed_ctl = KNL_MC0_CH0_MSR_PMON_FIXED_CTL,
+ .box_ctl = KNL_MC0_CH0_MSR_PMON_BOX_CTL,
+ .ops = &knl_uncore_imc_ops,
+ .format_group = &snbep_uncore_format_group,
+};
+
+static struct intel_uncore_type knl_uncore_edc_uclk = {
+ .name = "edc_uclk",
+ .num_counters = 4,
+ .num_boxes = 8,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = KNL_UCLK_MSR_PMON_CTR0_LOW,
+ .event_ctl = KNL_UCLK_MSR_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = KNL_UCLK_MSR_PMON_UCLK_FIXED_LOW,
+ .fixed_ctl = KNL_UCLK_MSR_PMON_UCLK_FIXED_CTL,
+ .box_ctl = KNL_UCLK_MSR_PMON_BOX_CTL,
+ .ops = &knl_uncore_imc_ops,
+ .format_group = &snbep_uncore_format_group,
+};
+
+static struct intel_uncore_type knl_uncore_edc_eclk = {
+ .name = "edc_eclk",
+ .num_counters = 4,
+ .num_boxes = 8,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = KNL_EDC0_ECLK_MSR_PMON_CTR0_LOW,
+ .event_ctl = KNL_EDC0_ECLK_MSR_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = KNL_EDC0_ECLK_MSR_PMON_ECLK_FIXED_LOW,
+ .fixed_ctl = KNL_EDC0_ECLK_MSR_PMON_ECLK_FIXED_CTL,
+ .box_ctl = KNL_EDC0_ECLK_MSR_PMON_BOX_CTL,
+ .ops = &knl_uncore_imc_ops,
+ .format_group = &snbep_uncore_format_group,
+};
+
+static struct event_constraint knl_uncore_m2pcie_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type knl_uncore_m2pcie = {
+ .name = "m2pcie",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .constraints = knl_uncore_m2pcie_constraints,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct attribute *knl_uncore_irp_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_qor.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static const struct attribute_group knl_uncore_irp_format_group = {
+ .name = "format",
+ .attrs = knl_uncore_irp_formats_attr,
+};
+
+static struct intel_uncore_type knl_uncore_irp = {
+ .name = "irp",
+ .num_counters = 2,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNBEP_PCI_PMON_CTR0,
+ .event_ctl = SNBEP_PCI_PMON_CTL0,
+ .event_mask = KNL_IRP_PCI_PMON_RAW_EVENT_MASK,
+ .box_ctl = KNL_IRP_PCI_PMON_BOX_CTL,
+ .ops = &snbep_uncore_pci_ops,
+ .format_group = &knl_uncore_irp_format_group,
+};
+
+enum {
+ KNL_PCI_UNCORE_MC_UCLK,
+ KNL_PCI_UNCORE_MC_DCLK,
+ KNL_PCI_UNCORE_EDC_UCLK,
+ KNL_PCI_UNCORE_EDC_ECLK,
+ KNL_PCI_UNCORE_M2PCIE,
+ KNL_PCI_UNCORE_IRP,
+};
+
+static struct intel_uncore_type *knl_pci_uncores[] = {
+ [KNL_PCI_UNCORE_MC_UCLK] = &knl_uncore_imc_uclk,
+ [KNL_PCI_UNCORE_MC_DCLK] = &knl_uncore_imc_dclk,
+ [KNL_PCI_UNCORE_EDC_UCLK] = &knl_uncore_edc_uclk,
+ [KNL_PCI_UNCORE_EDC_ECLK] = &knl_uncore_edc_eclk,
+ [KNL_PCI_UNCORE_M2PCIE] = &knl_uncore_m2pcie,
+ [KNL_PCI_UNCORE_IRP] = &knl_uncore_irp,
+ NULL,
+};
+
+/*
+ * KNL uses a common PCI device ID for multiple instances of an Uncore PMU
+ * device type. prior to KNL, each instance of a PMU device type had a unique
+ * device ID.
+ *
+ * PCI Device ID Uncore PMU Devices
+ * ----------------------------------
+ * 0x7841 MC0 UClk, MC1 UClk
+ * 0x7843 MC0 DClk CH 0, MC0 DClk CH 1, MC0 DClk CH 2,
+ * MC1 DClk CH 0, MC1 DClk CH 1, MC1 DClk CH 2
+ * 0x7833 EDC0 UClk, EDC1 UClk, EDC2 UClk, EDC3 UClk,
+ * EDC4 UClk, EDC5 UClk, EDC6 UClk, EDC7 UClk
+ * 0x7835 EDC0 EClk, EDC1 EClk, EDC2 EClk, EDC3 EClk,
+ * EDC4 EClk, EDC5 EClk, EDC6 EClk, EDC7 EClk
+ * 0x7817 M2PCIe
+ * 0x7814 IRP
+*/
+
+static const struct pci_device_id knl_uncore_pci_ids[] = {
+ { /* MC0 UClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7841),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(10, 0, KNL_PCI_UNCORE_MC_UCLK, 0),
+ },
+ { /* MC1 UClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7841),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(11, 0, KNL_PCI_UNCORE_MC_UCLK, 1),
+ },
+ { /* MC0 DClk CH 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7843),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(8, 2, KNL_PCI_UNCORE_MC_DCLK, 0),
+ },
+ { /* MC0 DClk CH 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7843),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(8, 3, KNL_PCI_UNCORE_MC_DCLK, 1),
+ },
+ { /* MC0 DClk CH 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7843),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(8, 4, KNL_PCI_UNCORE_MC_DCLK, 2),
+ },
+ { /* MC1 DClk CH 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7843),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(9, 2, KNL_PCI_UNCORE_MC_DCLK, 3),
+ },
+ { /* MC1 DClk CH 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7843),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(9, 3, KNL_PCI_UNCORE_MC_DCLK, 4),
+ },
+ { /* MC1 DClk CH 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7843),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(9, 4, KNL_PCI_UNCORE_MC_DCLK, 5),
+ },
+ { /* EDC0 UClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7833),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(15, 0, KNL_PCI_UNCORE_EDC_UCLK, 0),
+ },
+ { /* EDC1 UClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7833),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(16, 0, KNL_PCI_UNCORE_EDC_UCLK, 1),
+ },
+ { /* EDC2 UClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7833),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(17, 0, KNL_PCI_UNCORE_EDC_UCLK, 2),
+ },
+ { /* EDC3 UClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7833),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 0, KNL_PCI_UNCORE_EDC_UCLK, 3),
+ },
+ { /* EDC4 UClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7833),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(19, 0, KNL_PCI_UNCORE_EDC_UCLK, 4),
+ },
+ { /* EDC5 UClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7833),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(20, 0, KNL_PCI_UNCORE_EDC_UCLK, 5),
+ },
+ { /* EDC6 UClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7833),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(21, 0, KNL_PCI_UNCORE_EDC_UCLK, 6),
+ },
+ { /* EDC7 UClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7833),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(22, 0, KNL_PCI_UNCORE_EDC_UCLK, 7),
+ },
+ { /* EDC0 EClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7835),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(24, 2, KNL_PCI_UNCORE_EDC_ECLK, 0),
+ },
+ { /* EDC1 EClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7835),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(25, 2, KNL_PCI_UNCORE_EDC_ECLK, 1),
+ },
+ { /* EDC2 EClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7835),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(26, 2, KNL_PCI_UNCORE_EDC_ECLK, 2),
+ },
+ { /* EDC3 EClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7835),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(27, 2, KNL_PCI_UNCORE_EDC_ECLK, 3),
+ },
+ { /* EDC4 EClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7835),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(28, 2, KNL_PCI_UNCORE_EDC_ECLK, 4),
+ },
+ { /* EDC5 EClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7835),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(29, 2, KNL_PCI_UNCORE_EDC_ECLK, 5),
+ },
+ { /* EDC6 EClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7835),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(30, 2, KNL_PCI_UNCORE_EDC_ECLK, 6),
+ },
+ { /* EDC7 EClk */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7835),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(31, 2, KNL_PCI_UNCORE_EDC_ECLK, 7),
+ },
+ { /* M2PCIe */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7817),
+ .driver_data = UNCORE_PCI_DEV_DATA(KNL_PCI_UNCORE_M2PCIE, 0),
+ },
+ { /* IRP */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x7814),
+ .driver_data = UNCORE_PCI_DEV_DATA(KNL_PCI_UNCORE_IRP, 0),
+ },
+ { /* end: all zeroes */ }
+};
+
+static struct pci_driver knl_uncore_pci_driver = {
+ .name = "knl_uncore",
+ .id_table = knl_uncore_pci_ids,
+};
+
+int knl_uncore_pci_init(void)
+{
+ int ret;
+
+ /* All KNL PCI based PMON units are on the same PCI bus except IRP */
+ ret = snb_pci2phy_map_init(0x7814); /* IRP */
+ if (ret)
+ return ret;
+ ret = snb_pci2phy_map_init(0x7817); /* M2PCIe */
+ if (ret)
+ return ret;
+ uncore_pci_uncores = knl_pci_uncores;
+ uncore_pci_driver = &knl_uncore_pci_driver;
+ return 0;
+}
+
+/* end of KNL uncore support */
+
+/* Haswell-EP uncore support */
+static struct attribute *hswep_uncore_ubox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh5.attr,
+ &format_attr_filter_tid2.attr,
+ &format_attr_filter_cid.attr,
+ NULL,
+};
+
+static const struct attribute_group hswep_uncore_ubox_format_group = {
+ .name = "format",
+ .attrs = hswep_uncore_ubox_formats_attr,
+};
+
+static int hswep_ubox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ reg1->reg = HSWEP_U_MSR_PMON_FILTER;
+ reg1->config = event->attr.config1 & HSWEP_U_MSR_PMON_BOX_FILTER_MASK;
+ reg1->idx = 0;
+ return 0;
+}
+
+static struct intel_uncore_ops hswep_uncore_ubox_ops = {
+ SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
+ .hw_config = hswep_ubox_hw_config,
+ .get_constraint = uncore_get_constraint,
+ .put_constraint = uncore_put_constraint,
+};
+
+static struct intel_uncore_type hswep_uncore_ubox = {
+ .name = "ubox",
+ .num_counters = 2,
+ .num_boxes = 1,
+ .perf_ctr_bits = 44,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = HSWEP_U_MSR_PMON_CTR0,
+ .event_ctl = HSWEP_U_MSR_PMON_CTL0,
+ .event_mask = SNBEP_U_MSR_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = HSWEP_U_MSR_PMON_UCLK_FIXED_CTR,
+ .fixed_ctl = HSWEP_U_MSR_PMON_UCLK_FIXED_CTL,
+ .num_shared_regs = 1,
+ .ops = &hswep_uncore_ubox_ops,
+ .format_group = &hswep_uncore_ubox_format_group,
+};
+
+static struct attribute *hswep_uncore_cbox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_tid_en.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_filter_tid3.attr,
+ &format_attr_filter_link2.attr,
+ &format_attr_filter_state3.attr,
+ &format_attr_filter_nid2.attr,
+ &format_attr_filter_opc2.attr,
+ &format_attr_filter_nc.attr,
+ &format_attr_filter_c6.attr,
+ &format_attr_filter_isoc.attr,
+ NULL,
+};
+
+static const struct attribute_group hswep_uncore_cbox_format_group = {
+ .name = "format",
+ .attrs = hswep_uncore_cbox_formats_attr,
+};
+
+static struct event_constraint hswep_uncore_cbox_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x01, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x09, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x36, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x38, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x3b, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x3e, 0x1),
+ EVENT_CONSTRAINT_END
+};
+
+static struct extra_reg hswep_uncore_cbox_extra_regs[] = {
+ SNBEP_CBO_EVENT_EXTRA_REG(SNBEP_CBO_PMON_CTL_TID_EN,
+ SNBEP_CBO_PMON_CTL_TID_EN, 0x1),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0334, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0534, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0934, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x1134, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x2134, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4134, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4037, 0x40ff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4028, 0x40ff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4032, 0x40ff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4029, 0x40ff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4033, 0x40ff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x402A, 0x40ff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0135, 0xffff, 0x12),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0335, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4135, 0xffff, 0x18),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4435, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4835, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x5035, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4335, 0xffff, 0x18),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4a35, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x2335, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x8335, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x2135, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x8135, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0136, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0336, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4136, 0xffff, 0x18),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4436, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4836, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4336, 0xffff, 0x18),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x4a36, 0xffff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x2336, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x8336, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x2136, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x8136, 0xffff, 0x10),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x5036, 0xffff, 0x8),
+ EVENT_EXTRA_END
+};
+
+static u64 hswep_cbox_filter_mask(int fields)
+{
+ u64 mask = 0;
+ if (fields & 0x1)
+ mask |= HSWEP_CB0_MSR_PMON_BOX_FILTER_TID;
+ if (fields & 0x2)
+ mask |= HSWEP_CB0_MSR_PMON_BOX_FILTER_LINK;
+ if (fields & 0x4)
+ mask |= HSWEP_CB0_MSR_PMON_BOX_FILTER_STATE;
+ if (fields & 0x8)
+ mask |= HSWEP_CB0_MSR_PMON_BOX_FILTER_NID;
+ if (fields & 0x10) {
+ mask |= HSWEP_CB0_MSR_PMON_BOX_FILTER_OPC;
+ mask |= HSWEP_CB0_MSR_PMON_BOX_FILTER_NC;
+ mask |= HSWEP_CB0_MSR_PMON_BOX_FILTER_C6;
+ mask |= HSWEP_CB0_MSR_PMON_BOX_FILTER_ISOC;
+ }
+ return mask;
+}
+
+static struct event_constraint *
+hswep_cbox_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ return __snbep_cbox_get_constraint(box, event, hswep_cbox_filter_mask);
+}
+
+static int hswep_cbox_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct extra_reg *er;
+ int idx = 0;
+
+ for (er = hswep_uncore_cbox_extra_regs; er->msr; er++) {
+ if (er->event != (event->hw.config & er->config_mask))
+ continue;
+ idx |= er->idx;
+ }
+
+ if (idx) {
+ reg1->reg = HSWEP_C0_MSR_PMON_BOX_FILTER0 +
+ HSWEP_CBO_MSR_OFFSET * box->pmu->pmu_idx;
+ reg1->config = event->attr.config1 & hswep_cbox_filter_mask(idx);
+ reg1->idx = idx;
+ }
+ return 0;
+}
+
+static void hswep_cbox_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+
+ if (reg1->idx != EXTRA_REG_NONE) {
+ u64 filter = uncore_shared_reg_config(box, 0);
+ wrmsrl(reg1->reg, filter & 0xffffffff);
+ wrmsrl(reg1->reg + 1, filter >> 32);
+ }
+
+ wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static struct intel_uncore_ops hswep_uncore_cbox_ops = {
+ .init_box = snbep_uncore_msr_init_box,
+ .disable_box = snbep_uncore_msr_disable_box,
+ .enable_box = snbep_uncore_msr_enable_box,
+ .disable_event = snbep_uncore_msr_disable_event,
+ .enable_event = hswep_cbox_enable_event,
+ .read_counter = uncore_msr_read_counter,
+ .hw_config = hswep_cbox_hw_config,
+ .get_constraint = hswep_cbox_get_constraint,
+ .put_constraint = snbep_cbox_put_constraint,
+};
+
+static struct intel_uncore_type hswep_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 4,
+ .num_boxes = 18,
+ .perf_ctr_bits = 48,
+ .event_ctl = HSWEP_C0_MSR_PMON_CTL0,
+ .perf_ctr = HSWEP_C0_MSR_PMON_CTR0,
+ .event_mask = SNBEP_CBO_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = HSWEP_C0_MSR_PMON_BOX_CTL,
+ .msr_offset = HSWEP_CBO_MSR_OFFSET,
+ .num_shared_regs = 1,
+ .constraints = hswep_uncore_cbox_constraints,
+ .ops = &hswep_uncore_cbox_ops,
+ .format_group = &hswep_uncore_cbox_format_group,
+};
+
+/*
+ * Write SBOX Initialization register bit by bit to avoid spurious #GPs
+ */
+static void hswep_uncore_sbox_msr_init_box(struct intel_uncore_box *box)
+{
+ unsigned msr = uncore_msr_box_ctl(box);
+
+ if (msr) {
+ u64 init = SNBEP_PMON_BOX_CTL_INT;
+ u64 flags = 0;
+ int i;
+
+ for_each_set_bit(i, (unsigned long *)&init, 64) {
+ flags |= (1ULL << i);
+ wrmsrl(msr, flags);
+ }
+ }
+}
+
+static struct intel_uncore_ops hswep_uncore_sbox_msr_ops = {
+ __SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
+ .init_box = hswep_uncore_sbox_msr_init_box
+};
+
+static struct attribute *hswep_uncore_sbox_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_tid_en.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static const struct attribute_group hswep_uncore_sbox_format_group = {
+ .name = "format",
+ .attrs = hswep_uncore_sbox_formats_attr,
+};
+
+static struct intel_uncore_type hswep_uncore_sbox = {
+ .name = "sbox",
+ .num_counters = 4,
+ .num_boxes = 4,
+ .perf_ctr_bits = 44,
+ .event_ctl = HSWEP_S0_MSR_PMON_CTL0,
+ .perf_ctr = HSWEP_S0_MSR_PMON_CTR0,
+ .event_mask = HSWEP_S_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = HSWEP_S0_MSR_PMON_BOX_CTL,
+ .msr_offset = HSWEP_SBOX_MSR_OFFSET,
+ .ops = &hswep_uncore_sbox_msr_ops,
+ .format_group = &hswep_uncore_sbox_format_group,
+};
+
+static int hswep_pcu_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ int ev_sel = hwc->config & SNBEP_PMON_CTL_EV_SEL_MASK;
+
+ if (ev_sel >= 0xb && ev_sel <= 0xe) {
+ reg1->reg = HSWEP_PCU_MSR_PMON_BOX_FILTER;
+ reg1->idx = ev_sel - 0xb;
+ reg1->config = event->attr.config1 & (0xff << reg1->idx);
+ }
+ return 0;
+}
+
+static struct intel_uncore_ops hswep_uncore_pcu_ops = {
+ SNBEP_UNCORE_MSR_OPS_COMMON_INIT(),
+ .hw_config = hswep_pcu_hw_config,
+ .get_constraint = snbep_pcu_get_constraint,
+ .put_constraint = snbep_pcu_put_constraint,
+};
+
+static struct intel_uncore_type hswep_uncore_pcu = {
+ .name = "pcu",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .perf_ctr = HSWEP_PCU_MSR_PMON_CTR0,
+ .event_ctl = HSWEP_PCU_MSR_PMON_CTL0,
+ .event_mask = SNBEP_PCU_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = HSWEP_PCU_MSR_PMON_BOX_CTL,
+ .num_shared_regs = 1,
+ .ops = &hswep_uncore_pcu_ops,
+ .format_group = &snbep_uncore_pcu_format_group,
+};
+
+static struct intel_uncore_type *hswep_msr_uncores[] = {
+ &hswep_uncore_ubox,
+ &hswep_uncore_cbox,
+ &hswep_uncore_sbox,
+ &hswep_uncore_pcu,
+ NULL,
+};
+
+#define HSWEP_PCU_DID 0x2fc0
+#define HSWEP_PCU_CAPID4_OFFET 0x94
+#define hswep_get_chop(_cap) (((_cap) >> 6) & 0x3)
+
+static bool hswep_has_limit_sbox(unsigned int device)
+{
+ struct pci_dev *dev = pci_get_device(PCI_VENDOR_ID_INTEL, device, NULL);
+ u32 capid4;
+
+ if (!dev)
+ return false;
+
+ pci_read_config_dword(dev, HSWEP_PCU_CAPID4_OFFET, &capid4);
+ pci_dev_put(dev);
+ if (!hswep_get_chop(capid4))
+ return true;
+
+ return false;
+}
+
+void hswep_uncore_cpu_init(void)
+{
+ if (hswep_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
+ hswep_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
+
+ /* Detect 6-8 core systems with only two SBOXes */
+ if (hswep_has_limit_sbox(HSWEP_PCU_DID))
+ hswep_uncore_sbox.num_boxes = 2;
+
+ uncore_msr_uncores = hswep_msr_uncores;
+}
+
+static struct intel_uncore_type hswep_uncore_ha = {
+ .name = "ha",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct uncore_event_desc hswep_uncore_imc_events[] = {
+ INTEL_UNCORE_EVENT_DESC(clockticks, "event=0x00,umask=0x00"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read, "event=0x04,umask=0x03"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x04,umask=0x0c"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write.unit, "MiB"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_type hswep_uncore_imc = {
+ .name = "imc",
+ .num_counters = 4,
+ .num_boxes = 8,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = SNBEP_MC_CHy_PCI_PMON_FIXED_CTR,
+ .fixed_ctl = SNBEP_MC_CHy_PCI_PMON_FIXED_CTL,
+ .event_descs = hswep_uncore_imc_events,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static unsigned hswep_uncore_irp_ctrs[] = {0xa0, 0xa8, 0xb0, 0xb8};
+
+static u64 hswep_uncore_irp_read_counter(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+ u64 count = 0;
+
+ pci_read_config_dword(pdev, hswep_uncore_irp_ctrs[hwc->idx], (u32 *)&count);
+ pci_read_config_dword(pdev, hswep_uncore_irp_ctrs[hwc->idx] + 4, (u32 *)&count + 1);
+
+ return count;
+}
+
+static struct intel_uncore_ops hswep_uncore_irp_ops = {
+ .init_box = snbep_uncore_pci_init_box,
+ .disable_box = snbep_uncore_pci_disable_box,
+ .enable_box = snbep_uncore_pci_enable_box,
+ .disable_event = ivbep_uncore_irp_disable_event,
+ .enable_event = ivbep_uncore_irp_enable_event,
+ .read_counter = hswep_uncore_irp_read_counter,
+};
+
+static struct intel_uncore_type hswep_uncore_irp = {
+ .name = "irp",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .ops = &hswep_uncore_irp_ops,
+ .format_group = &snbep_uncore_format_group,
+};
+
+static struct intel_uncore_type hswep_uncore_qpi = {
+ .name = "qpi",
+ .num_counters = 4,
+ .num_boxes = 3,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNBEP_PCI_PMON_CTR0,
+ .event_ctl = SNBEP_PCI_PMON_CTL0,
+ .event_mask = SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .num_shared_regs = 1,
+ .ops = &snbep_uncore_qpi_ops,
+ .format_group = &snbep_uncore_qpi_format_group,
+};
+
+static struct event_constraint hswep_uncore_r2pcie_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x10, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x13, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x23, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x24, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x25, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x26, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x27, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x28, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x29, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2a, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x2b, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2c, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2d, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x32, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x33, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x34, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x35, 0x3),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type hswep_uncore_r2pcie = {
+ .name = "r2pcie",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .constraints = hswep_uncore_r2pcie_constraints,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct event_constraint hswep_uncore_r3qpi_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x01, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x07, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x08, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x09, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x0a, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x0e, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x10, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x12, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x13, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x14, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x15, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x1f, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x20, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x21, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x22, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x25, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x26, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x28, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x29, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2c, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2d, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2e, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2f, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x31, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x32, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x33, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x34, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x36, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x37, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x38, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x39, 0x3),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type hswep_uncore_r3qpi = {
+ .name = "r3qpi",
+ .num_counters = 3,
+ .num_boxes = 3,
+ .perf_ctr_bits = 44,
+ .constraints = hswep_uncore_r3qpi_constraints,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+enum {
+ HSWEP_PCI_UNCORE_HA,
+ HSWEP_PCI_UNCORE_IMC,
+ HSWEP_PCI_UNCORE_IRP,
+ HSWEP_PCI_UNCORE_QPI,
+ HSWEP_PCI_UNCORE_R2PCIE,
+ HSWEP_PCI_UNCORE_R3QPI,
+};
+
+static struct intel_uncore_type *hswep_pci_uncores[] = {
+ [HSWEP_PCI_UNCORE_HA] = &hswep_uncore_ha,
+ [HSWEP_PCI_UNCORE_IMC] = &hswep_uncore_imc,
+ [HSWEP_PCI_UNCORE_IRP] = &hswep_uncore_irp,
+ [HSWEP_PCI_UNCORE_QPI] = &hswep_uncore_qpi,
+ [HSWEP_PCI_UNCORE_R2PCIE] = &hswep_uncore_r2pcie,
+ [HSWEP_PCI_UNCORE_R3QPI] = &hswep_uncore_r3qpi,
+ NULL,
+};
+
+static const struct pci_device_id hswep_uncore_pci_ids[] = {
+ { /* Home Agent 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f30),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_HA, 0),
+ },
+ { /* Home Agent 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f38),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_HA, 1),
+ },
+ { /* MC0 Channel 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fb0),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_IMC, 0),
+ },
+ { /* MC0 Channel 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fb1),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_IMC, 1),
+ },
+ { /* MC0 Channel 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fb4),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_IMC, 2),
+ },
+ { /* MC0 Channel 3 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fb5),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_IMC, 3),
+ },
+ { /* MC1 Channel 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fd0),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_IMC, 4),
+ },
+ { /* MC1 Channel 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fd1),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_IMC, 5),
+ },
+ { /* MC1 Channel 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fd4),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_IMC, 6),
+ },
+ { /* MC1 Channel 3 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2fd5),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_IMC, 7),
+ },
+ { /* IRP */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f39),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_IRP, 0),
+ },
+ { /* QPI0 Port 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f32),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_QPI, 0),
+ },
+ { /* QPI0 Port 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f33),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_QPI, 1),
+ },
+ { /* QPI1 Port 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f3a),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_QPI, 2),
+ },
+ { /* R2PCIe */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f34),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_R2PCIE, 0),
+ },
+ { /* R3QPI0 Link 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f36),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_R3QPI, 0),
+ },
+ { /* R3QPI0 Link 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f37),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_R3QPI, 1),
+ },
+ { /* R3QPI1 Link 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f3e),
+ .driver_data = UNCORE_PCI_DEV_DATA(HSWEP_PCI_UNCORE_R3QPI, 2),
+ },
+ { /* QPI Port 0 filter */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f86),
+ .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+ SNBEP_PCI_QPI_PORT0_FILTER),
+ },
+ { /* QPI Port 1 filter */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2f96),
+ .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+ SNBEP_PCI_QPI_PORT1_FILTER),
+ },
+ { /* end: all zeroes */ }
+};
+
+static struct pci_driver hswep_uncore_pci_driver = {
+ .name = "hswep_uncore",
+ .id_table = hswep_uncore_pci_ids,
+};
+
+int hswep_uncore_pci_init(void)
+{
+ int ret = snbep_pci2phy_map_init(0x2f1e, SNBEP_CPUNODEID, SNBEP_GIDNIDMAP, true);
+ if (ret)
+ return ret;
+ uncore_pci_uncores = hswep_pci_uncores;
+ uncore_pci_driver = &hswep_uncore_pci_driver;
+ return 0;
+}
+/* end of Haswell-EP uncore support */
+
+/* BDX uncore support */
+
+static struct intel_uncore_type bdx_uncore_ubox = {
+ .name = "ubox",
+ .num_counters = 2,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = HSWEP_U_MSR_PMON_CTR0,
+ .event_ctl = HSWEP_U_MSR_PMON_CTL0,
+ .event_mask = SNBEP_U_MSR_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = HSWEP_U_MSR_PMON_UCLK_FIXED_CTR,
+ .fixed_ctl = HSWEP_U_MSR_PMON_UCLK_FIXED_CTL,
+ .num_shared_regs = 1,
+ .ops = &ivbep_uncore_msr_ops,
+ .format_group = &ivbep_uncore_ubox_format_group,
+};
+
+static struct event_constraint bdx_uncore_cbox_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x09, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x36, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x3e, 0x1),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type bdx_uncore_cbox = {
+ .name = "cbox",
+ .num_counters = 4,
+ .num_boxes = 24,
+ .perf_ctr_bits = 48,
+ .event_ctl = HSWEP_C0_MSR_PMON_CTL0,
+ .perf_ctr = HSWEP_C0_MSR_PMON_CTR0,
+ .event_mask = SNBEP_CBO_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = HSWEP_C0_MSR_PMON_BOX_CTL,
+ .msr_offset = HSWEP_CBO_MSR_OFFSET,
+ .num_shared_regs = 1,
+ .constraints = bdx_uncore_cbox_constraints,
+ .ops = &hswep_uncore_cbox_ops,
+ .format_group = &hswep_uncore_cbox_format_group,
+};
+
+static struct intel_uncore_type bdx_uncore_sbox = {
+ .name = "sbox",
+ .num_counters = 4,
+ .num_boxes = 4,
+ .perf_ctr_bits = 48,
+ .event_ctl = HSWEP_S0_MSR_PMON_CTL0,
+ .perf_ctr = HSWEP_S0_MSR_PMON_CTR0,
+ .event_mask = HSWEP_S_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = HSWEP_S0_MSR_PMON_BOX_CTL,
+ .msr_offset = HSWEP_SBOX_MSR_OFFSET,
+ .ops = &hswep_uncore_sbox_msr_ops,
+ .format_group = &hswep_uncore_sbox_format_group,
+};
+
+#define BDX_MSR_UNCORE_SBOX 3
+
+static struct intel_uncore_type *bdx_msr_uncores[] = {
+ &bdx_uncore_ubox,
+ &bdx_uncore_cbox,
+ &hswep_uncore_pcu,
+ &bdx_uncore_sbox,
+ NULL,
+};
+
+/* Bit 7 'Use Occupancy' is not available for counter 0 on BDX */
+static struct event_constraint bdx_uncore_pcu_constraints[] = {
+ EVENT_CONSTRAINT(0x80, 0xe, 0x80),
+ EVENT_CONSTRAINT_END
+};
+
+#define BDX_PCU_DID 0x6fc0
+
+void bdx_uncore_cpu_init(void)
+{
+ if (bdx_uncore_cbox.num_boxes > boot_cpu_data.x86_max_cores)
+ bdx_uncore_cbox.num_boxes = boot_cpu_data.x86_max_cores;
+ uncore_msr_uncores = bdx_msr_uncores;
+
+ /* Detect systems with no SBOXes */
+ if ((boot_cpu_data.x86_model == 86) || hswep_has_limit_sbox(BDX_PCU_DID))
+ uncore_msr_uncores[BDX_MSR_UNCORE_SBOX] = NULL;
+
+ hswep_uncore_pcu.constraints = bdx_uncore_pcu_constraints;
+}
+
+static struct intel_uncore_type bdx_uncore_ha = {
+ .name = "ha",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type bdx_uncore_imc = {
+ .name = "imc",
+ .num_counters = 4,
+ .num_boxes = 8,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = SNBEP_MC_CHy_PCI_PMON_FIXED_CTR,
+ .fixed_ctl = SNBEP_MC_CHy_PCI_PMON_FIXED_CTL,
+ .event_descs = hswep_uncore_imc_events,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct intel_uncore_type bdx_uncore_irp = {
+ .name = "irp",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .ops = &hswep_uncore_irp_ops,
+ .format_group = &snbep_uncore_format_group,
+};
+
+static struct intel_uncore_type bdx_uncore_qpi = {
+ .name = "qpi",
+ .num_counters = 4,
+ .num_boxes = 3,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNBEP_PCI_PMON_CTR0,
+ .event_ctl = SNBEP_PCI_PMON_CTL0,
+ .event_mask = SNBEP_QPI_PCI_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .num_shared_regs = 1,
+ .ops = &snbep_uncore_qpi_ops,
+ .format_group = &snbep_uncore_qpi_format_group,
+};
+
+static struct event_constraint bdx_uncore_r2pcie_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x10, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x13, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x23, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x25, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x26, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x28, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2c, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2d, 0x3),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type bdx_uncore_r2pcie = {
+ .name = "r2pcie",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .constraints = bdx_uncore_r2pcie_constraints,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+static struct event_constraint bdx_uncore_r3qpi_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x01, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x07, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x08, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x09, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x0a, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x0e, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x10, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x13, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x14, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x15, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x1f, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x20, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x21, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x22, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x25, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x26, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x28, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x29, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2c, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2d, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2e, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2f, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x33, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x34, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x36, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x37, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x38, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x39, 0x3),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type bdx_uncore_r3qpi = {
+ .name = "r3qpi",
+ .num_counters = 3,
+ .num_boxes = 3,
+ .perf_ctr_bits = 48,
+ .constraints = bdx_uncore_r3qpi_constraints,
+ SNBEP_UNCORE_PCI_COMMON_INIT(),
+};
+
+enum {
+ BDX_PCI_UNCORE_HA,
+ BDX_PCI_UNCORE_IMC,
+ BDX_PCI_UNCORE_IRP,
+ BDX_PCI_UNCORE_QPI,
+ BDX_PCI_UNCORE_R2PCIE,
+ BDX_PCI_UNCORE_R3QPI,
+};
+
+static struct intel_uncore_type *bdx_pci_uncores[] = {
+ [BDX_PCI_UNCORE_HA] = &bdx_uncore_ha,
+ [BDX_PCI_UNCORE_IMC] = &bdx_uncore_imc,
+ [BDX_PCI_UNCORE_IRP] = &bdx_uncore_irp,
+ [BDX_PCI_UNCORE_QPI] = &bdx_uncore_qpi,
+ [BDX_PCI_UNCORE_R2PCIE] = &bdx_uncore_r2pcie,
+ [BDX_PCI_UNCORE_R3QPI] = &bdx_uncore_r3qpi,
+ NULL,
+};
+
+static const struct pci_device_id bdx_uncore_pci_ids[] = {
+ { /* Home Agent 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f30),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_HA, 0),
+ },
+ { /* Home Agent 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f38),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_HA, 1),
+ },
+ { /* MC0 Channel 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fb0),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 0),
+ },
+ { /* MC0 Channel 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fb1),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 1),
+ },
+ { /* MC0 Channel 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fb4),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 2),
+ },
+ { /* MC0 Channel 3 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fb5),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 3),
+ },
+ { /* MC1 Channel 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fd0),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 4),
+ },
+ { /* MC1 Channel 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fd1),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 5),
+ },
+ { /* MC1 Channel 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fd4),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 6),
+ },
+ { /* MC1 Channel 3 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6fd5),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IMC, 7),
+ },
+ { /* IRP */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f39),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_IRP, 0),
+ },
+ { /* QPI0 Port 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f32),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_QPI, 0),
+ },
+ { /* QPI0 Port 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f33),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_QPI, 1),
+ },
+ { /* QPI1 Port 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f3a),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_QPI, 2),
+ },
+ { /* R2PCIe */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f34),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_R2PCIE, 0),
+ },
+ { /* R3QPI0 Link 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f36),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_R3QPI, 0),
+ },
+ { /* R3QPI0 Link 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f37),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_R3QPI, 1),
+ },
+ { /* R3QPI1 Link 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f3e),
+ .driver_data = UNCORE_PCI_DEV_DATA(BDX_PCI_UNCORE_R3QPI, 2),
+ },
+ { /* QPI Port 0 filter */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f86),
+ .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+ SNBEP_PCI_QPI_PORT0_FILTER),
+ },
+ { /* QPI Port 1 filter */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f96),
+ .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+ SNBEP_PCI_QPI_PORT1_FILTER),
+ },
+ { /* QPI Port 2 filter */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x6f46),
+ .driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+ BDX_PCI_QPI_PORT2_FILTER),
+ },
+ { /* end: all zeroes */ }
+};
+
+static struct pci_driver bdx_uncore_pci_driver = {
+ .name = "bdx_uncore",
+ .id_table = bdx_uncore_pci_ids,
+};
+
+int bdx_uncore_pci_init(void)
+{
+ int ret = snbep_pci2phy_map_init(0x6f1e, SNBEP_CPUNODEID, SNBEP_GIDNIDMAP, true);
+
+ if (ret)
+ return ret;
+ uncore_pci_uncores = bdx_pci_uncores;
+ uncore_pci_driver = &bdx_uncore_pci_driver;
+ return 0;
+}
+
+/* end of BDX uncore support */
+
+/* SKX uncore support */
+
+static struct intel_uncore_type skx_uncore_ubox = {
+ .name = "ubox",
+ .num_counters = 2,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = HSWEP_U_MSR_PMON_CTR0,
+ .event_ctl = HSWEP_U_MSR_PMON_CTL0,
+ .event_mask = SNBEP_U_MSR_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = HSWEP_U_MSR_PMON_UCLK_FIXED_CTR,
+ .fixed_ctl = HSWEP_U_MSR_PMON_UCLK_FIXED_CTL,
+ .ops = &ivbep_uncore_msr_ops,
+ .format_group = &ivbep_uncore_ubox_format_group,
+};
+
+static struct attribute *skx_uncore_cha_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_tid_en.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_filter_tid4.attr,
+ &format_attr_filter_state5.attr,
+ &format_attr_filter_rem.attr,
+ &format_attr_filter_loc.attr,
+ &format_attr_filter_nm.attr,
+ &format_attr_filter_all_op.attr,
+ &format_attr_filter_not_nm.attr,
+ &format_attr_filter_opc_0.attr,
+ &format_attr_filter_opc_1.attr,
+ &format_attr_filter_nc.attr,
+ &format_attr_filter_isoc.attr,
+ NULL,
+};
+
+static const struct attribute_group skx_uncore_chabox_format_group = {
+ .name = "format",
+ .attrs = skx_uncore_cha_formats_attr,
+};
+
+static struct event_constraint skx_uncore_chabox_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x11, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x36, 0x1),
+ EVENT_CONSTRAINT_END
+};
+
+static struct extra_reg skx_uncore_cha_extra_regs[] = {
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0334, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0534, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x0934, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x1134, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x3134, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x9134, 0xffff, 0x4),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x35, 0xff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x36, 0xff, 0x8),
+ SNBEP_CBO_EVENT_EXTRA_REG(0x38, 0xff, 0x3),
+ EVENT_EXTRA_END
+};
+
+static u64 skx_cha_filter_mask(int fields)
+{
+ u64 mask = 0;
+
+ if (fields & 0x1)
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_TID;
+ if (fields & 0x2)
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_LINK;
+ if (fields & 0x4)
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_STATE;
+ if (fields & 0x8) {
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_REM;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_LOC;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_ALL_OPC;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_NM;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_NOT_NM;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_OPC0;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_OPC1;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_NC;
+ mask |= SKX_CHA_MSR_PMON_BOX_FILTER_ISOC;
+ }
+ return mask;
+}
+
+static struct event_constraint *
+skx_cha_get_constraint(struct intel_uncore_box *box, struct perf_event *event)
+{
+ return __snbep_cbox_get_constraint(box, event, skx_cha_filter_mask);
+}
+
+static int skx_cha_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ struct extra_reg *er;
+ int idx = 0;
+ /* Any of the CHA events may be filtered by Thread/Core-ID.*/
+ if (event->hw.config & SNBEP_CBO_PMON_CTL_TID_EN)
+ idx = SKX_CHA_MSR_PMON_BOX_FILTER_TID;
+
+ for (er = skx_uncore_cha_extra_regs; er->msr; er++) {
+ if (er->event != (event->hw.config & er->config_mask))
+ continue;
+ idx |= er->idx;
+ }
+
+ if (idx) {
+ reg1->reg = HSWEP_C0_MSR_PMON_BOX_FILTER0 +
+ HSWEP_CBO_MSR_OFFSET * box->pmu->pmu_idx;
+ reg1->config = event->attr.config1 & skx_cha_filter_mask(idx);
+ reg1->idx = idx;
+ }
+ return 0;
+}
+
+static struct intel_uncore_ops skx_uncore_chabox_ops = {
+ /* There is no frz_en for chabox ctl */
+ .init_box = ivbep_uncore_msr_init_box,
+ .disable_box = snbep_uncore_msr_disable_box,
+ .enable_box = snbep_uncore_msr_enable_box,
+ .disable_event = snbep_uncore_msr_disable_event,
+ .enable_event = hswep_cbox_enable_event,
+ .read_counter = uncore_msr_read_counter,
+ .hw_config = skx_cha_hw_config,
+ .get_constraint = skx_cha_get_constraint,
+ .put_constraint = snbep_cbox_put_constraint,
+};
+
+static struct intel_uncore_type skx_uncore_chabox = {
+ .name = "cha",
+ .num_counters = 4,
+ .perf_ctr_bits = 48,
+ .event_ctl = HSWEP_C0_MSR_PMON_CTL0,
+ .perf_ctr = HSWEP_C0_MSR_PMON_CTR0,
+ .event_mask = HSWEP_S_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = HSWEP_C0_MSR_PMON_BOX_CTL,
+ .msr_offset = HSWEP_CBO_MSR_OFFSET,
+ .num_shared_regs = 1,
+ .constraints = skx_uncore_chabox_constraints,
+ .ops = &skx_uncore_chabox_ops,
+ .format_group = &skx_uncore_chabox_format_group,
+};
+
+static struct attribute *skx_uncore_iio_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh9.attr,
+ &format_attr_ch_mask.attr,
+ &format_attr_fc_mask.attr,
+ NULL,
+};
+
+static const struct attribute_group skx_uncore_iio_format_group = {
+ .name = "format",
+ .attrs = skx_uncore_iio_formats_attr,
+};
+
+static struct event_constraint skx_uncore_iio_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x83, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x88, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0x95, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0xc0, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0xc5, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0xd4, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0xd5, 0xc),
+ EVENT_CONSTRAINT_END
+};
+
+static void skx_iio_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static struct intel_uncore_ops skx_uncore_iio_ops = {
+ .init_box = ivbep_uncore_msr_init_box,
+ .disable_box = snbep_uncore_msr_disable_box,
+ .enable_box = snbep_uncore_msr_enable_box,
+ .disable_event = snbep_uncore_msr_disable_event,
+ .enable_event = skx_iio_enable_event,
+ .read_counter = uncore_msr_read_counter,
+};
+
+static struct intel_uncore_topology *pmu_topology(struct intel_uncore_pmu *pmu, int die)
+{
+ int idx;
+
+ for (idx = 0; idx < pmu->type->num_boxes; idx++) {
+ if (pmu->type->topology[die][idx].pmu_idx == pmu->pmu_idx)
+ return &pmu->type->topology[die][idx];
+ }
+
+ return NULL;
+}
+
+static umode_t
+pmu_iio_mapping_visible(struct kobject *kobj, struct attribute *attr,
+ int die, int zero_bus_pmu)
+{
+ struct intel_uncore_pmu *pmu = dev_to_uncore_pmu(kobj_to_dev(kobj));
+ struct intel_uncore_topology *pmut = pmu_topology(pmu, die);
+
+ return (pmut && !pmut->iio->pci_bus_no && pmu->pmu_idx != zero_bus_pmu) ? 0 : attr->mode;
+}
+
+static umode_t
+skx_iio_mapping_visible(struct kobject *kobj, struct attribute *attr, int die)
+{
+ /* Root bus 0x00 is valid only for pmu_idx = 0. */
+ return pmu_iio_mapping_visible(kobj, attr, die, 0);
+}
+
+static ssize_t skx_iio_mapping_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct intel_uncore_pmu *pmu = dev_to_uncore_pmu(dev);
+ struct dev_ext_attribute *ea = to_dev_ext_attribute(attr);
+ long die = (long)ea->var;
+ struct intel_uncore_topology *pmut = pmu_topology(pmu, die);
+
+ return sprintf(buf, "%04x:%02x\n", pmut ? pmut->iio->segment : 0,
+ pmut ? pmut->iio->pci_bus_no : 0);
+}
+
+static int skx_msr_cpu_bus_read(int cpu, u64 *topology)
+{
+ u64 msr_value;
+
+ if (rdmsrl_on_cpu(cpu, SKX_MSR_CPU_BUS_NUMBER, &msr_value) ||
+ !(msr_value & SKX_MSR_CPU_BUS_VALID_BIT))
+ return -ENXIO;
+
+ *topology = msr_value;
+
+ return 0;
+}
+
+static int die_to_cpu(int die)
+{
+ int res = 0, cpu, current_die;
+ /*
+ * Using cpus_read_lock() to ensure cpu is not going down between
+ * looking at cpu_online_mask.
+ */
+ cpus_read_lock();
+ for_each_online_cpu(cpu) {
+ current_die = topology_logical_die_id(cpu);
+ if (current_die == die) {
+ res = cpu;
+ break;
+ }
+ }
+ cpus_read_unlock();
+ return res;
+}
+
+enum {
+ IIO_TOPOLOGY_TYPE,
+ UPI_TOPOLOGY_TYPE,
+ TOPOLOGY_MAX
+};
+
+static const size_t topology_size[TOPOLOGY_MAX] = {
+ sizeof(*((struct intel_uncore_topology *)NULL)->iio),
+ sizeof(*((struct intel_uncore_topology *)NULL)->upi)
+};
+
+static int pmu_alloc_topology(struct intel_uncore_type *type, int topology_type)
+{
+ int die, idx;
+ struct intel_uncore_topology **topology;
+
+ if (!type->num_boxes)
+ return -EPERM;
+
+ topology = kcalloc(uncore_max_dies(), sizeof(*topology), GFP_KERNEL);
+ if (!topology)
+ goto err;
+
+ for (die = 0; die < uncore_max_dies(); die++) {
+ topology[die] = kcalloc(type->num_boxes, sizeof(**topology), GFP_KERNEL);
+ if (!topology[die])
+ goto clear;
+ for (idx = 0; idx < type->num_boxes; idx++) {
+ topology[die][idx].untyped = kcalloc(type->num_boxes,
+ topology_size[topology_type],
+ GFP_KERNEL);
+ if (!topology[die][idx].untyped)
+ goto clear;
+ }
+ }
+
+ type->topology = topology;
+
+ return 0;
+clear:
+ for (; die >= 0; die--) {
+ for (idx = 0; idx < type->num_boxes; idx++)
+ kfree(topology[die][idx].untyped);
+ kfree(topology[die]);
+ }
+ kfree(topology);
+err:
+ return -ENOMEM;
+}
+
+static void pmu_free_topology(struct intel_uncore_type *type)
+{
+ int die, idx;
+
+ if (type->topology) {
+ for (die = 0; die < uncore_max_dies(); die++) {
+ for (idx = 0; idx < type->num_boxes; idx++)
+ kfree(type->topology[die][idx].untyped);
+ kfree(type->topology[die]);
+ }
+ kfree(type->topology);
+ type->topology = NULL;
+ }
+}
+
+static int skx_pmu_get_topology(struct intel_uncore_type *type,
+ int (*topology_cb)(struct intel_uncore_type*, int, int, u64))
+{
+ int die, ret = -EPERM;
+ u64 cpu_bus_msr;
+
+ for (die = 0; die < uncore_max_dies(); die++) {
+ ret = skx_msr_cpu_bus_read(die_to_cpu(die), &cpu_bus_msr);
+ if (ret)
+ break;
+
+ ret = uncore_die_to_segment(die);
+ if (ret < 0)
+ break;
+
+ ret = topology_cb(type, ret, die, cpu_bus_msr);
+ if (ret)
+ break;
+ }
+
+ return ret;
+}
+
+static int skx_iio_topology_cb(struct intel_uncore_type *type, int segment,
+ int die, u64 cpu_bus_msr)
+{
+ int idx;
+ struct intel_uncore_topology *t;
+
+ for (idx = 0; idx < type->num_boxes; idx++) {
+ t = &type->topology[die][idx];
+ t->pmu_idx = idx;
+ t->iio->segment = segment;
+ t->iio->pci_bus_no = (cpu_bus_msr >> (idx * BUS_NUM_STRIDE)) & 0xff;
+ }
+
+ return 0;
+}
+
+static int skx_iio_get_topology(struct intel_uncore_type *type)
+{
+ return skx_pmu_get_topology(type, skx_iio_topology_cb);
+}
+
+static struct attribute_group skx_iio_mapping_group = {
+ .is_visible = skx_iio_mapping_visible,
+};
+
+static const struct attribute_group *skx_iio_attr_update[] = {
+ &skx_iio_mapping_group,
+ NULL,
+};
+
+static void pmu_clear_mapping_attr(const struct attribute_group **groups,
+ struct attribute_group *ag)
+{
+ int i;
+
+ for (i = 0; groups[i]; i++) {
+ if (groups[i] == ag) {
+ for (i++; groups[i]; i++)
+ groups[i - 1] = groups[i];
+ groups[i - 1] = NULL;
+ break;
+ }
+ }
+}
+
+static void
+pmu_set_mapping(struct intel_uncore_type *type, struct attribute_group *ag,
+ ssize_t (*show)(struct device*, struct device_attribute*, char*),
+ int topology_type)
+{
+ char buf[64];
+ int ret;
+ long die = -1;
+ struct attribute **attrs = NULL;
+ struct dev_ext_attribute *eas = NULL;
+
+ ret = pmu_alloc_topology(type, topology_type);
+ if (ret < 0)
+ goto clear_attr_update;
+
+ ret = type->get_topology(type);
+ if (ret < 0)
+ goto clear_topology;
+
+ /* One more for NULL. */
+ attrs = kcalloc((uncore_max_dies() + 1), sizeof(*attrs), GFP_KERNEL);
+ if (!attrs)
+ goto clear_topology;
+
+ eas = kcalloc(uncore_max_dies(), sizeof(*eas), GFP_KERNEL);
+ if (!eas)
+ goto clear_attrs;
+
+ for (die = 0; die < uncore_max_dies(); die++) {
+ snprintf(buf, sizeof(buf), "die%ld", die);
+ sysfs_attr_init(&eas[die].attr.attr);
+ eas[die].attr.attr.name = kstrdup(buf, GFP_KERNEL);
+ if (!eas[die].attr.attr.name)
+ goto err;
+ eas[die].attr.attr.mode = 0444;
+ eas[die].attr.show = show;
+ eas[die].attr.store = NULL;
+ eas[die].var = (void *)die;
+ attrs[die] = &eas[die].attr.attr;
+ }
+ ag->attrs = attrs;
+
+ return;
+err:
+ for (; die >= 0; die--)
+ kfree(eas[die].attr.attr.name);
+ kfree(eas);
+clear_attrs:
+ kfree(attrs);
+clear_topology:
+ pmu_free_topology(type);
+clear_attr_update:
+ pmu_clear_mapping_attr(type->attr_update, ag);
+}
+
+static void
+pmu_cleanup_mapping(struct intel_uncore_type *type, struct attribute_group *ag)
+{
+ struct attribute **attr = ag->attrs;
+
+ if (!attr)
+ return;
+
+ for (; *attr; attr++)
+ kfree((*attr)->name);
+ kfree(attr_to_ext_attr(*ag->attrs));
+ kfree(ag->attrs);
+ ag->attrs = NULL;
+ pmu_free_topology(type);
+}
+
+static void
+pmu_iio_set_mapping(struct intel_uncore_type *type, struct attribute_group *ag)
+{
+ pmu_set_mapping(type, ag, skx_iio_mapping_show, IIO_TOPOLOGY_TYPE);
+}
+
+static void skx_iio_set_mapping(struct intel_uncore_type *type)
+{
+ pmu_iio_set_mapping(type, &skx_iio_mapping_group);
+}
+
+static void skx_iio_cleanup_mapping(struct intel_uncore_type *type)
+{
+ pmu_cleanup_mapping(type, &skx_iio_mapping_group);
+}
+
+static struct intel_uncore_type skx_uncore_iio = {
+ .name = "iio",
+ .num_counters = 4,
+ .num_boxes = 6,
+ .perf_ctr_bits = 48,
+ .event_ctl = SKX_IIO0_MSR_PMON_CTL0,
+ .perf_ctr = SKX_IIO0_MSR_PMON_CTR0,
+ .event_mask = SKX_IIO_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SKX_IIO_PMON_RAW_EVENT_MASK_EXT,
+ .box_ctl = SKX_IIO0_MSR_PMON_BOX_CTL,
+ .msr_offset = SKX_IIO_MSR_OFFSET,
+ .constraints = skx_uncore_iio_constraints,
+ .ops = &skx_uncore_iio_ops,
+ .format_group = &skx_uncore_iio_format_group,
+ .attr_update = skx_iio_attr_update,
+ .get_topology = skx_iio_get_topology,
+ .set_mapping = skx_iio_set_mapping,
+ .cleanup_mapping = skx_iio_cleanup_mapping,
+};
+
+enum perf_uncore_iio_freerunning_type_id {
+ SKX_IIO_MSR_IOCLK = 0,
+ SKX_IIO_MSR_BW = 1,
+ SKX_IIO_MSR_UTIL = 2,
+
+ SKX_IIO_FREERUNNING_TYPE_MAX,
+};
+
+
+static struct freerunning_counters skx_iio_freerunning[] = {
+ [SKX_IIO_MSR_IOCLK] = { 0xa45, 0x1, 0x20, 1, 36 },
+ [SKX_IIO_MSR_BW] = { 0xb00, 0x1, 0x10, 8, 36 },
+ [SKX_IIO_MSR_UTIL] = { 0xb08, 0x1, 0x10, 8, 36 },
+};
+
+static struct uncore_event_desc skx_uncore_iio_freerunning_events[] = {
+ /* Free-Running IO CLOCKS Counter */
+ INTEL_UNCORE_EVENT_DESC(ioclk, "event=0xff,umask=0x10"),
+ /* Free-Running IIO BANDWIDTH Counters */
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0, "event=0xff,umask=0x20"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1, "event=0xff,umask=0x21"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2, "event=0xff,umask=0x22"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3, "event=0xff,umask=0x23"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port0, "event=0xff,umask=0x24"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port0.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port0.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port1, "event=0xff,umask=0x25"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port1.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port1.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port2, "event=0xff,umask=0x26"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port2.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port2.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port3, "event=0xff,umask=0x27"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port3.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port3.unit, "MiB"),
+ /* Free-running IIO UTILIZATION Counters */
+ INTEL_UNCORE_EVENT_DESC(util_in_port0, "event=0xff,umask=0x30"),
+ INTEL_UNCORE_EVENT_DESC(util_out_port0, "event=0xff,umask=0x31"),
+ INTEL_UNCORE_EVENT_DESC(util_in_port1, "event=0xff,umask=0x32"),
+ INTEL_UNCORE_EVENT_DESC(util_out_port1, "event=0xff,umask=0x33"),
+ INTEL_UNCORE_EVENT_DESC(util_in_port2, "event=0xff,umask=0x34"),
+ INTEL_UNCORE_EVENT_DESC(util_out_port2, "event=0xff,umask=0x35"),
+ INTEL_UNCORE_EVENT_DESC(util_in_port3, "event=0xff,umask=0x36"),
+ INTEL_UNCORE_EVENT_DESC(util_out_port3, "event=0xff,umask=0x37"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_ops skx_uncore_iio_freerunning_ops = {
+ .read_counter = uncore_msr_read_counter,
+ .hw_config = uncore_freerunning_hw_config,
+};
+
+static struct attribute *skx_uncore_iio_freerunning_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ NULL,
+};
+
+static const struct attribute_group skx_uncore_iio_freerunning_format_group = {
+ .name = "format",
+ .attrs = skx_uncore_iio_freerunning_formats_attr,
+};
+
+static struct intel_uncore_type skx_uncore_iio_free_running = {
+ .name = "iio_free_running",
+ .num_counters = 17,
+ .num_boxes = 6,
+ .num_freerunning_types = SKX_IIO_FREERUNNING_TYPE_MAX,
+ .freerunning = skx_iio_freerunning,
+ .ops = &skx_uncore_iio_freerunning_ops,
+ .event_descs = skx_uncore_iio_freerunning_events,
+ .format_group = &skx_uncore_iio_freerunning_format_group,
+};
+
+static struct attribute *skx_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static const struct attribute_group skx_uncore_format_group = {
+ .name = "format",
+ .attrs = skx_uncore_formats_attr,
+};
+
+static struct intel_uncore_type skx_uncore_irp = {
+ .name = "irp",
+ .num_counters = 2,
+ .num_boxes = 6,
+ .perf_ctr_bits = 48,
+ .event_ctl = SKX_IRP0_MSR_PMON_CTL0,
+ .perf_ctr = SKX_IRP0_MSR_PMON_CTR0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SKX_IRP0_MSR_PMON_BOX_CTL,
+ .msr_offset = SKX_IRP_MSR_OFFSET,
+ .ops = &skx_uncore_iio_ops,
+ .format_group = &skx_uncore_format_group,
+};
+
+static struct attribute *skx_uncore_pcu_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_occ_invert.attr,
+ &format_attr_occ_edge_det.attr,
+ &format_attr_filter_band0.attr,
+ &format_attr_filter_band1.attr,
+ &format_attr_filter_band2.attr,
+ &format_attr_filter_band3.attr,
+ NULL,
+};
+
+static struct attribute_group skx_uncore_pcu_format_group = {
+ .name = "format",
+ .attrs = skx_uncore_pcu_formats_attr,
+};
+
+static struct intel_uncore_ops skx_uncore_pcu_ops = {
+ IVBEP_UNCORE_MSR_OPS_COMMON_INIT(),
+ .hw_config = hswep_pcu_hw_config,
+ .get_constraint = snbep_pcu_get_constraint,
+ .put_constraint = snbep_pcu_put_constraint,
+};
+
+static struct intel_uncore_type skx_uncore_pcu = {
+ .name = "pcu",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .perf_ctr = HSWEP_PCU_MSR_PMON_CTR0,
+ .event_ctl = HSWEP_PCU_MSR_PMON_CTL0,
+ .event_mask = SNBEP_PCU_MSR_PMON_RAW_EVENT_MASK,
+ .box_ctl = HSWEP_PCU_MSR_PMON_BOX_CTL,
+ .num_shared_regs = 1,
+ .ops = &skx_uncore_pcu_ops,
+ .format_group = &skx_uncore_pcu_format_group,
+};
+
+static struct intel_uncore_type *skx_msr_uncores[] = {
+ &skx_uncore_ubox,
+ &skx_uncore_chabox,
+ &skx_uncore_iio,
+ &skx_uncore_iio_free_running,
+ &skx_uncore_irp,
+ &skx_uncore_pcu,
+ NULL,
+};
+
+/*
+ * To determine the number of CHAs, it should read bits 27:0 in the CAPID6
+ * register which located at Device 30, Function 3, Offset 0x9C. PCI ID 0x2083.
+ */
+#define SKX_CAPID6 0x9c
+#define SKX_CHA_BIT_MASK GENMASK(27, 0)
+
+static int skx_count_chabox(void)
+{
+ struct pci_dev *dev = NULL;
+ u32 val = 0;
+
+ dev = pci_get_device(PCI_VENDOR_ID_INTEL, 0x2083, dev);
+ if (!dev)
+ goto out;
+
+ pci_read_config_dword(dev, SKX_CAPID6, &val);
+ val &= SKX_CHA_BIT_MASK;
+out:
+ pci_dev_put(dev);
+ return hweight32(val);
+}
+
+void skx_uncore_cpu_init(void)
+{
+ skx_uncore_chabox.num_boxes = skx_count_chabox();
+ uncore_msr_uncores = skx_msr_uncores;
+}
+
+static struct intel_uncore_type skx_uncore_imc = {
+ .name = "imc",
+ .num_counters = 4,
+ .num_boxes = 6,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = SNBEP_MC_CHy_PCI_PMON_FIXED_CTR,
+ .fixed_ctl = SNBEP_MC_CHy_PCI_PMON_FIXED_CTL,
+ .event_descs = hswep_uncore_imc_events,
+ .perf_ctr = SNBEP_PCI_PMON_CTR0,
+ .event_ctl = SNBEP_PCI_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .ops = &ivbep_uncore_pci_ops,
+ .format_group = &skx_uncore_format_group,
+};
+
+static struct attribute *skx_upi_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask_ext.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static const struct attribute_group skx_upi_uncore_format_group = {
+ .name = "format",
+ .attrs = skx_upi_uncore_formats_attr,
+};
+
+static void skx_upi_uncore_pci_init_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+
+ __set_bit(UNCORE_BOX_FLAG_CTL_OFFS8, &box->flags);
+ pci_write_config_dword(pdev, SKX_UPI_PCI_PMON_BOX_CTL, IVBEP_PMON_BOX_CTL_INT);
+}
+
+static struct intel_uncore_ops skx_upi_uncore_pci_ops = {
+ .init_box = skx_upi_uncore_pci_init_box,
+ .disable_box = snbep_uncore_pci_disable_box,
+ .enable_box = snbep_uncore_pci_enable_box,
+ .disable_event = snbep_uncore_pci_disable_event,
+ .enable_event = snbep_uncore_pci_enable_event,
+ .read_counter = snbep_uncore_pci_read_counter,
+};
+
+static umode_t
+skx_upi_mapping_visible(struct kobject *kobj, struct attribute *attr, int die)
+{
+ struct intel_uncore_pmu *pmu = dev_to_uncore_pmu(kobj_to_dev(kobj));
+
+ return pmu->type->topology[die][pmu->pmu_idx].upi->enabled ? attr->mode : 0;
+}
+
+static ssize_t skx_upi_mapping_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct intel_uncore_pmu *pmu = dev_to_uncore_pmu(dev);
+ struct dev_ext_attribute *ea = to_dev_ext_attribute(attr);
+ long die = (long)ea->var;
+ struct uncore_upi_topology *upi = pmu->type->topology[die][pmu->pmu_idx].upi;
+
+ return sysfs_emit(buf, "upi_%d,die_%d\n", upi->pmu_idx_to, upi->die_to);
+}
+
+#define SKX_UPI_REG_DID 0x2058
+#define SKX_UPI_REGS_ADDR_DEVICE_LINK0 0x0e
+#define SKX_UPI_REGS_ADDR_FUNCTION 0x00
+
+/*
+ * UPI Link Parameter 0
+ * | Bit | Default | Description
+ * | 19:16 | 0h | base_nodeid - The NodeID of the sending socket.
+ * | 12:8 | 00h | sending_port - The processor die port number of the sending port.
+ */
+#define SKX_KTILP0_OFFSET 0x94
+
+/*
+ * UPI Pcode Status. This register is used by PCode to store the link training status.
+ * | Bit | Default | Description
+ * | 4 | 0h | ll_status_valid — Bit indicates the valid training status
+ * logged from PCode to the BIOS.
+ */
+#define SKX_KTIPCSTS_OFFSET 0x120
+
+static int upi_fill_topology(struct pci_dev *dev, struct intel_uncore_topology *tp,
+ int pmu_idx)
+{
+ int ret;
+ u32 upi_conf;
+ struct uncore_upi_topology *upi = tp->upi;
+
+ tp->pmu_idx = pmu_idx;
+ ret = pci_read_config_dword(dev, SKX_KTIPCSTS_OFFSET, &upi_conf);
+ if (ret) {
+ ret = pcibios_err_to_errno(ret);
+ goto err;
+ }
+ upi->enabled = (upi_conf >> 4) & 1;
+ if (upi->enabled) {
+ ret = pci_read_config_dword(dev, SKX_KTILP0_OFFSET,
+ &upi_conf);
+ if (ret) {
+ ret = pcibios_err_to_errno(ret);
+ goto err;
+ }
+ upi->die_to = (upi_conf >> 16) & 0xf;
+ upi->pmu_idx_to = (upi_conf >> 8) & 0x1f;
+ }
+err:
+ return ret;
+}
+
+static int skx_upi_topology_cb(struct intel_uncore_type *type, int segment,
+ int die, u64 cpu_bus_msr)
+{
+ int idx, ret;
+ struct intel_uncore_topology *upi;
+ unsigned int devfn;
+ struct pci_dev *dev = NULL;
+ u8 bus = cpu_bus_msr >> (3 * BUS_NUM_STRIDE);
+
+ for (idx = 0; idx < type->num_boxes; idx++) {
+ upi = &type->topology[die][idx];
+ devfn = PCI_DEVFN(SKX_UPI_REGS_ADDR_DEVICE_LINK0 + idx,
+ SKX_UPI_REGS_ADDR_FUNCTION);
+ dev = pci_get_domain_bus_and_slot(segment, bus, devfn);
+ if (dev) {
+ ret = upi_fill_topology(dev, upi, idx);
+ if (ret)
+ break;
+ }
+ }
+
+ pci_dev_put(dev);
+ return ret;
+}
+
+static int skx_upi_get_topology(struct intel_uncore_type *type)
+{
+ /* CPX case is not supported */
+ if (boot_cpu_data.x86_stepping == 11)
+ return -EPERM;
+
+ return skx_pmu_get_topology(type, skx_upi_topology_cb);
+}
+
+static struct attribute_group skx_upi_mapping_group = {
+ .is_visible = skx_upi_mapping_visible,
+};
+
+static const struct attribute_group *skx_upi_attr_update[] = {
+ &skx_upi_mapping_group,
+ NULL
+};
+
+static void
+pmu_upi_set_mapping(struct intel_uncore_type *type, struct attribute_group *ag)
+{
+ pmu_set_mapping(type, ag, skx_upi_mapping_show, UPI_TOPOLOGY_TYPE);
+}
+
+static void skx_upi_set_mapping(struct intel_uncore_type *type)
+{
+ pmu_upi_set_mapping(type, &skx_upi_mapping_group);
+}
+
+static void skx_upi_cleanup_mapping(struct intel_uncore_type *type)
+{
+ pmu_cleanup_mapping(type, &skx_upi_mapping_group);
+}
+
+static struct intel_uncore_type skx_uncore_upi = {
+ .name = "upi",
+ .num_counters = 4,
+ .num_boxes = 3,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SKX_UPI_PCI_PMON_CTR0,
+ .event_ctl = SKX_UPI_PCI_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SKX_UPI_CTL_UMASK_EXT,
+ .box_ctl = SKX_UPI_PCI_PMON_BOX_CTL,
+ .ops = &skx_upi_uncore_pci_ops,
+ .format_group = &skx_upi_uncore_format_group,
+ .attr_update = skx_upi_attr_update,
+ .get_topology = skx_upi_get_topology,
+ .set_mapping = skx_upi_set_mapping,
+ .cleanup_mapping = skx_upi_cleanup_mapping,
+};
+
+static void skx_m2m_uncore_pci_init_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+
+ __set_bit(UNCORE_BOX_FLAG_CTL_OFFS8, &box->flags);
+ pci_write_config_dword(pdev, SKX_M2M_PCI_PMON_BOX_CTL, IVBEP_PMON_BOX_CTL_INT);
+}
+
+static struct intel_uncore_ops skx_m2m_uncore_pci_ops = {
+ .init_box = skx_m2m_uncore_pci_init_box,
+ .disable_box = snbep_uncore_pci_disable_box,
+ .enable_box = snbep_uncore_pci_enable_box,
+ .disable_event = snbep_uncore_pci_disable_event,
+ .enable_event = snbep_uncore_pci_enable_event,
+ .read_counter = snbep_uncore_pci_read_counter,
+};
+
+static struct intel_uncore_type skx_uncore_m2m = {
+ .name = "m2m",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SKX_M2M_PCI_PMON_CTR0,
+ .event_ctl = SKX_M2M_PCI_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SKX_M2M_PCI_PMON_BOX_CTL,
+ .ops = &skx_m2m_uncore_pci_ops,
+ .format_group = &skx_uncore_format_group,
+};
+
+static struct event_constraint skx_uncore_m2pcie_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type skx_uncore_m2pcie = {
+ .name = "m2pcie",
+ .num_counters = 4,
+ .num_boxes = 4,
+ .perf_ctr_bits = 48,
+ .constraints = skx_uncore_m2pcie_constraints,
+ .perf_ctr = SNBEP_PCI_PMON_CTR0,
+ .event_ctl = SNBEP_PCI_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .ops = &ivbep_uncore_pci_ops,
+ .format_group = &skx_uncore_format_group,
+};
+
+static struct event_constraint skx_uncore_m3upi_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x1d, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x1e, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x40, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x4e, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x4f, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x50, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x51, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x52, 0x7),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type skx_uncore_m3upi = {
+ .name = "m3upi",
+ .num_counters = 3,
+ .num_boxes = 3,
+ .perf_ctr_bits = 48,
+ .constraints = skx_uncore_m3upi_constraints,
+ .perf_ctr = SNBEP_PCI_PMON_CTR0,
+ .event_ctl = SNBEP_PCI_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNBEP_PCI_PMON_BOX_CTL,
+ .ops = &ivbep_uncore_pci_ops,
+ .format_group = &skx_uncore_format_group,
+};
+
+enum {
+ SKX_PCI_UNCORE_IMC,
+ SKX_PCI_UNCORE_M2M,
+ SKX_PCI_UNCORE_UPI,
+ SKX_PCI_UNCORE_M2PCIE,
+ SKX_PCI_UNCORE_M3UPI,
+};
+
+static struct intel_uncore_type *skx_pci_uncores[] = {
+ [SKX_PCI_UNCORE_IMC] = &skx_uncore_imc,
+ [SKX_PCI_UNCORE_M2M] = &skx_uncore_m2m,
+ [SKX_PCI_UNCORE_UPI] = &skx_uncore_upi,
+ [SKX_PCI_UNCORE_M2PCIE] = &skx_uncore_m2pcie,
+ [SKX_PCI_UNCORE_M3UPI] = &skx_uncore_m3upi,
+ NULL,
+};
+
+static const struct pci_device_id skx_uncore_pci_ids[] = {
+ { /* MC0 Channel 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2042),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(10, 2, SKX_PCI_UNCORE_IMC, 0),
+ },
+ { /* MC0 Channel 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2046),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(10, 6, SKX_PCI_UNCORE_IMC, 1),
+ },
+ { /* MC0 Channel 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204a),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(11, 2, SKX_PCI_UNCORE_IMC, 2),
+ },
+ { /* MC1 Channel 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2042),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(12, 2, SKX_PCI_UNCORE_IMC, 3),
+ },
+ { /* MC1 Channel 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2046),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(12, 6, SKX_PCI_UNCORE_IMC, 4),
+ },
+ { /* MC1 Channel 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204a),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(13, 2, SKX_PCI_UNCORE_IMC, 5),
+ },
+ { /* M2M0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2066),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(8, 0, SKX_PCI_UNCORE_M2M, 0),
+ },
+ { /* M2M1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2066),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(9, 0, SKX_PCI_UNCORE_M2M, 1),
+ },
+ { /* UPI0 Link 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2058),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(14, 0, SKX_PCI_UNCORE_UPI, 0),
+ },
+ { /* UPI0 Link 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2058),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(15, 0, SKX_PCI_UNCORE_UPI, 1),
+ },
+ { /* UPI1 Link 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2058),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(16, 0, SKX_PCI_UNCORE_UPI, 2),
+ },
+ { /* M2PCIe 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2088),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(21, 1, SKX_PCI_UNCORE_M2PCIE, 0),
+ },
+ { /* M2PCIe 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2088),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(22, 1, SKX_PCI_UNCORE_M2PCIE, 1),
+ },
+ { /* M2PCIe 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2088),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(23, 1, SKX_PCI_UNCORE_M2PCIE, 2),
+ },
+ { /* M2PCIe 3 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2088),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(21, 5, SKX_PCI_UNCORE_M2PCIE, 3),
+ },
+ { /* M3UPI0 Link 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204D),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 1, SKX_PCI_UNCORE_M3UPI, 0),
+ },
+ { /* M3UPI0 Link 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204E),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 2, SKX_PCI_UNCORE_M3UPI, 1),
+ },
+ { /* M3UPI1 Link 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x204D),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(18, 5, SKX_PCI_UNCORE_M3UPI, 2),
+ },
+ { /* end: all zeroes */ }
+};
+
+
+static struct pci_driver skx_uncore_pci_driver = {
+ .name = "skx_uncore",
+ .id_table = skx_uncore_pci_ids,
+};
+
+int skx_uncore_pci_init(void)
+{
+ /* need to double check pci address */
+ int ret = snbep_pci2phy_map_init(0x2014, SKX_CPUNODEID, SKX_GIDNIDMAP, false);
+
+ if (ret)
+ return ret;
+
+ uncore_pci_uncores = skx_pci_uncores;
+ uncore_pci_driver = &skx_uncore_pci_driver;
+ return 0;
+}
+
+/* end of SKX uncore support */
+
+/* SNR uncore support */
+
+static struct intel_uncore_type snr_uncore_ubox = {
+ .name = "ubox",
+ .num_counters = 2,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .perf_ctr = SNR_U_MSR_PMON_CTR0,
+ .event_ctl = SNR_U_MSR_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .fixed_ctr = SNR_U_MSR_PMON_UCLK_FIXED_CTR,
+ .fixed_ctl = SNR_U_MSR_PMON_UCLK_FIXED_CTL,
+ .ops = &ivbep_uncore_msr_ops,
+ .format_group = &ivbep_uncore_format_group,
+};
+
+static struct attribute *snr_uncore_cha_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask_ext2.attr,
+ &format_attr_edge.attr,
+ &format_attr_tid_en.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_filter_tid5.attr,
+ NULL,
+};
+static const struct attribute_group snr_uncore_chabox_format_group = {
+ .name = "format",
+ .attrs = snr_uncore_cha_formats_attr,
+};
+
+static int snr_cha_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+
+ reg1->reg = SNR_C0_MSR_PMON_BOX_FILTER0 +
+ box->pmu->type->msr_offset * box->pmu->pmu_idx;
+ reg1->config = event->attr.config1 & SKX_CHA_MSR_PMON_BOX_FILTER_TID;
+ reg1->idx = 0;
+
+ return 0;
+}
+
+static void snr_cha_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+
+ if (reg1->idx != EXTRA_REG_NONE)
+ wrmsrl(reg1->reg, reg1->config);
+
+ wrmsrl(hwc->config_base, hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static struct intel_uncore_ops snr_uncore_chabox_ops = {
+ .init_box = ivbep_uncore_msr_init_box,
+ .disable_box = snbep_uncore_msr_disable_box,
+ .enable_box = snbep_uncore_msr_enable_box,
+ .disable_event = snbep_uncore_msr_disable_event,
+ .enable_event = snr_cha_enable_event,
+ .read_counter = uncore_msr_read_counter,
+ .hw_config = snr_cha_hw_config,
+};
+
+static struct intel_uncore_type snr_uncore_chabox = {
+ .name = "cha",
+ .num_counters = 4,
+ .num_boxes = 6,
+ .perf_ctr_bits = 48,
+ .event_ctl = SNR_CHA_MSR_PMON_CTL0,
+ .perf_ctr = SNR_CHA_MSR_PMON_CTR0,
+ .box_ctl = SNR_CHA_MSR_PMON_BOX_CTL,
+ .msr_offset = HSWEP_CBO_MSR_OFFSET,
+ .event_mask = HSWEP_S_MSR_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SNR_CHA_RAW_EVENT_MASK_EXT,
+ .ops = &snr_uncore_chabox_ops,
+ .format_group = &snr_uncore_chabox_format_group,
+};
+
+static struct attribute *snr_uncore_iio_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh9.attr,
+ &format_attr_ch_mask2.attr,
+ &format_attr_fc_mask2.attr,
+ NULL,
+};
+
+static const struct attribute_group snr_uncore_iio_format_group = {
+ .name = "format",
+ .attrs = snr_uncore_iio_formats_attr,
+};
+
+static umode_t
+snr_iio_mapping_visible(struct kobject *kobj, struct attribute *attr, int die)
+{
+ /* Root bus 0x00 is valid only for pmu_idx = 1. */
+ return pmu_iio_mapping_visible(kobj, attr, die, 1);
+}
+
+static struct attribute_group snr_iio_mapping_group = {
+ .is_visible = snr_iio_mapping_visible,
+};
+
+static const struct attribute_group *snr_iio_attr_update[] = {
+ &snr_iio_mapping_group,
+ NULL,
+};
+
+static int sad_cfg_iio_topology(struct intel_uncore_type *type, u8 *sad_pmon_mapping)
+{
+ u32 sad_cfg;
+ int die, stack_id, ret = -EPERM;
+ struct pci_dev *dev = NULL;
+
+ while ((dev = pci_get_device(PCI_VENDOR_ID_INTEL, SNR_ICX_MESH2IIO_MMAP_DID, dev))) {
+ ret = pci_read_config_dword(dev, SNR_ICX_SAD_CONTROL_CFG, &sad_cfg);
+ if (ret) {
+ ret = pcibios_err_to_errno(ret);
+ break;
+ }
+
+ die = uncore_pcibus_to_dieid(dev->bus);
+ stack_id = SAD_CONTROL_STACK_ID(sad_cfg);
+ if (die < 0 || stack_id >= type->num_boxes) {
+ ret = -EPERM;
+ break;
+ }
+
+ /* Convert stack id from SAD_CONTROL to PMON notation. */
+ stack_id = sad_pmon_mapping[stack_id];
+
+ type->topology[die][stack_id].iio->segment = pci_domain_nr(dev->bus);
+ type->topology[die][stack_id].pmu_idx = stack_id;
+ type->topology[die][stack_id].iio->pci_bus_no = dev->bus->number;
+ }
+
+ pci_dev_put(dev);
+
+ return ret;
+}
+
+/*
+ * SNR has a static mapping of stack IDs from SAD_CONTROL_CFG notation to PMON
+ */
+enum {
+ SNR_QAT_PMON_ID,
+ SNR_CBDMA_DMI_PMON_ID,
+ SNR_NIS_PMON_ID,
+ SNR_DLB_PMON_ID,
+ SNR_PCIE_GEN3_PMON_ID
+};
+
+static u8 snr_sad_pmon_mapping[] = {
+ SNR_CBDMA_DMI_PMON_ID,
+ SNR_PCIE_GEN3_PMON_ID,
+ SNR_DLB_PMON_ID,
+ SNR_NIS_PMON_ID,
+ SNR_QAT_PMON_ID
+};
+
+static int snr_iio_get_topology(struct intel_uncore_type *type)
+{
+ return sad_cfg_iio_topology(type, snr_sad_pmon_mapping);
+}
+
+static void snr_iio_set_mapping(struct intel_uncore_type *type)
+{
+ pmu_iio_set_mapping(type, &snr_iio_mapping_group);
+}
+
+static void snr_iio_cleanup_mapping(struct intel_uncore_type *type)
+{
+ pmu_cleanup_mapping(type, &snr_iio_mapping_group);
+}
+
+static struct event_constraint snr_uncore_iio_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x83, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0xc0, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0xd5, 0xc),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type snr_uncore_iio = {
+ .name = "iio",
+ .num_counters = 4,
+ .num_boxes = 5,
+ .perf_ctr_bits = 48,
+ .event_ctl = SNR_IIO_MSR_PMON_CTL0,
+ .perf_ctr = SNR_IIO_MSR_PMON_CTR0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SNR_IIO_PMON_RAW_EVENT_MASK_EXT,
+ .box_ctl = SNR_IIO_MSR_PMON_BOX_CTL,
+ .msr_offset = SNR_IIO_MSR_OFFSET,
+ .constraints = snr_uncore_iio_constraints,
+ .ops = &ivbep_uncore_msr_ops,
+ .format_group = &snr_uncore_iio_format_group,
+ .attr_update = snr_iio_attr_update,
+ .get_topology = snr_iio_get_topology,
+ .set_mapping = snr_iio_set_mapping,
+ .cleanup_mapping = snr_iio_cleanup_mapping,
+};
+
+static struct intel_uncore_type snr_uncore_irp = {
+ .name = "irp",
+ .num_counters = 2,
+ .num_boxes = 5,
+ .perf_ctr_bits = 48,
+ .event_ctl = SNR_IRP0_MSR_PMON_CTL0,
+ .perf_ctr = SNR_IRP0_MSR_PMON_CTR0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNR_IRP0_MSR_PMON_BOX_CTL,
+ .msr_offset = SNR_IRP_MSR_OFFSET,
+ .ops = &ivbep_uncore_msr_ops,
+ .format_group = &ivbep_uncore_format_group,
+};
+
+static struct intel_uncore_type snr_uncore_m2pcie = {
+ .name = "m2pcie",
+ .num_counters = 4,
+ .num_boxes = 5,
+ .perf_ctr_bits = 48,
+ .event_ctl = SNR_M2PCIE_MSR_PMON_CTL0,
+ .perf_ctr = SNR_M2PCIE_MSR_PMON_CTR0,
+ .box_ctl = SNR_M2PCIE_MSR_PMON_BOX_CTL,
+ .msr_offset = SNR_M2PCIE_MSR_OFFSET,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .ops = &ivbep_uncore_msr_ops,
+ .format_group = &ivbep_uncore_format_group,
+};
+
+static int snr_pcu_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+ int ev_sel = hwc->config & SNBEP_PMON_CTL_EV_SEL_MASK;
+
+ if (ev_sel >= 0xb && ev_sel <= 0xe) {
+ reg1->reg = SNR_PCU_MSR_PMON_BOX_FILTER;
+ reg1->idx = ev_sel - 0xb;
+ reg1->config = event->attr.config1 & (0xff << reg1->idx);
+ }
+ return 0;
+}
+
+static struct intel_uncore_ops snr_uncore_pcu_ops = {
+ IVBEP_UNCORE_MSR_OPS_COMMON_INIT(),
+ .hw_config = snr_pcu_hw_config,
+ .get_constraint = snbep_pcu_get_constraint,
+ .put_constraint = snbep_pcu_put_constraint,
+};
+
+static struct intel_uncore_type snr_uncore_pcu = {
+ .name = "pcu",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNR_PCU_MSR_PMON_CTR0,
+ .event_ctl = SNR_PCU_MSR_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNR_PCU_MSR_PMON_BOX_CTL,
+ .num_shared_regs = 1,
+ .ops = &snr_uncore_pcu_ops,
+ .format_group = &skx_uncore_pcu_format_group,
+};
+
+enum perf_uncore_snr_iio_freerunning_type_id {
+ SNR_IIO_MSR_IOCLK,
+ SNR_IIO_MSR_BW_IN,
+
+ SNR_IIO_FREERUNNING_TYPE_MAX,
+};
+
+static struct freerunning_counters snr_iio_freerunning[] = {
+ [SNR_IIO_MSR_IOCLK] = { 0x1eac, 0x1, 0x10, 1, 48 },
+ [SNR_IIO_MSR_BW_IN] = { 0x1f00, 0x1, 0x10, 8, 48 },
+};
+
+static struct uncore_event_desc snr_uncore_iio_freerunning_events[] = {
+ /* Free-Running IIO CLOCKS Counter */
+ INTEL_UNCORE_EVENT_DESC(ioclk, "event=0xff,umask=0x10"),
+ /* Free-Running IIO BANDWIDTH IN Counters */
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0, "event=0xff,umask=0x20"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1, "event=0xff,umask=0x21"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2, "event=0xff,umask=0x22"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3, "event=0xff,umask=0x23"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port4, "event=0xff,umask=0x24"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port4.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port4.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port5, "event=0xff,umask=0x25"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port5.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port5.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port6, "event=0xff,umask=0x26"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port6.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port6.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port7, "event=0xff,umask=0x27"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port7.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port7.unit, "MiB"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_type snr_uncore_iio_free_running = {
+ .name = "iio_free_running",
+ .num_counters = 9,
+ .num_boxes = 5,
+ .num_freerunning_types = SNR_IIO_FREERUNNING_TYPE_MAX,
+ .freerunning = snr_iio_freerunning,
+ .ops = &skx_uncore_iio_freerunning_ops,
+ .event_descs = snr_uncore_iio_freerunning_events,
+ .format_group = &skx_uncore_iio_freerunning_format_group,
+};
+
+static struct intel_uncore_type *snr_msr_uncores[] = {
+ &snr_uncore_ubox,
+ &snr_uncore_chabox,
+ &snr_uncore_iio,
+ &snr_uncore_irp,
+ &snr_uncore_m2pcie,
+ &snr_uncore_pcu,
+ &snr_uncore_iio_free_running,
+ NULL,
+};
+
+void snr_uncore_cpu_init(void)
+{
+ uncore_msr_uncores = snr_msr_uncores;
+}
+
+static void snr_m2m_uncore_pci_init_box(struct intel_uncore_box *box)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ int box_ctl = uncore_pci_box_ctl(box);
+
+ __set_bit(UNCORE_BOX_FLAG_CTL_OFFS8, &box->flags);
+ pci_write_config_dword(pdev, box_ctl, IVBEP_PMON_BOX_CTL_INT);
+}
+
+static struct intel_uncore_ops snr_m2m_uncore_pci_ops = {
+ .init_box = snr_m2m_uncore_pci_init_box,
+ .disable_box = snbep_uncore_pci_disable_box,
+ .enable_box = snbep_uncore_pci_enable_box,
+ .disable_event = snbep_uncore_pci_disable_event,
+ .enable_event = snbep_uncore_pci_enable_event,
+ .read_counter = snbep_uncore_pci_read_counter,
+};
+
+static struct attribute *snr_m2m_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask_ext3.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static const struct attribute_group snr_m2m_uncore_format_group = {
+ .name = "format",
+ .attrs = snr_m2m_uncore_formats_attr,
+};
+
+static struct intel_uncore_type snr_uncore_m2m = {
+ .name = "m2m",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNR_M2M_PCI_PMON_CTR0,
+ .event_ctl = SNR_M2M_PCI_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SNR_M2M_PCI_PMON_UMASK_EXT,
+ .box_ctl = SNR_M2M_PCI_PMON_BOX_CTL,
+ .ops = &snr_m2m_uncore_pci_ops,
+ .format_group = &snr_m2m_uncore_format_group,
+};
+
+static void snr_uncore_pci_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+
+ pci_write_config_dword(pdev, hwc->config_base, (u32)(hwc->config | SNBEP_PMON_CTL_EN));
+ pci_write_config_dword(pdev, hwc->config_base + 4, (u32)(hwc->config >> 32));
+}
+
+static struct intel_uncore_ops snr_pcie3_uncore_pci_ops = {
+ .init_box = snr_m2m_uncore_pci_init_box,
+ .disable_box = snbep_uncore_pci_disable_box,
+ .enable_box = snbep_uncore_pci_enable_box,
+ .disable_event = snbep_uncore_pci_disable_event,
+ .enable_event = snr_uncore_pci_enable_event,
+ .read_counter = snbep_uncore_pci_read_counter,
+};
+
+static struct intel_uncore_type snr_uncore_pcie3 = {
+ .name = "pcie3",
+ .num_counters = 4,
+ .num_boxes = 1,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNR_PCIE3_PCI_PMON_CTR0,
+ .event_ctl = SNR_PCIE3_PCI_PMON_CTL0,
+ .event_mask = SKX_IIO_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SKX_IIO_PMON_RAW_EVENT_MASK_EXT,
+ .box_ctl = SNR_PCIE3_PCI_PMON_BOX_CTL,
+ .ops = &snr_pcie3_uncore_pci_ops,
+ .format_group = &skx_uncore_iio_format_group,
+};
+
+enum {
+ SNR_PCI_UNCORE_M2M,
+ SNR_PCI_UNCORE_PCIE3,
+};
+
+static struct intel_uncore_type *snr_pci_uncores[] = {
+ [SNR_PCI_UNCORE_M2M] = &snr_uncore_m2m,
+ [SNR_PCI_UNCORE_PCIE3] = &snr_uncore_pcie3,
+ NULL,
+};
+
+static const struct pci_device_id snr_uncore_pci_ids[] = {
+ { /* M2M */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x344a),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(12, 0, SNR_PCI_UNCORE_M2M, 0),
+ },
+ { /* end: all zeroes */ }
+};
+
+static struct pci_driver snr_uncore_pci_driver = {
+ .name = "snr_uncore",
+ .id_table = snr_uncore_pci_ids,
+};
+
+static const struct pci_device_id snr_uncore_pci_sub_ids[] = {
+ { /* PCIe3 RP */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x334a),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(4, 0, SNR_PCI_UNCORE_PCIE3, 0),
+ },
+ { /* end: all zeroes */ }
+};
+
+static struct pci_driver snr_uncore_pci_sub_driver = {
+ .name = "snr_uncore_sub",
+ .id_table = snr_uncore_pci_sub_ids,
+};
+
+int snr_uncore_pci_init(void)
+{
+ /* SNR UBOX DID */
+ int ret = snbep_pci2phy_map_init(0x3460, SKX_CPUNODEID,
+ SKX_GIDNIDMAP, true);
+
+ if (ret)
+ return ret;
+
+ uncore_pci_uncores = snr_pci_uncores;
+ uncore_pci_driver = &snr_uncore_pci_driver;
+ uncore_pci_sub_driver = &snr_uncore_pci_sub_driver;
+ return 0;
+}
+
+#define SNR_MC_DEVICE_ID 0x3451
+
+static struct pci_dev *snr_uncore_get_mc_dev(unsigned int device, int id)
+{
+ struct pci_dev *mc_dev = NULL;
+ int pkg;
+
+ while (1) {
+ mc_dev = pci_get_device(PCI_VENDOR_ID_INTEL, device, mc_dev);
+ if (!mc_dev)
+ break;
+ pkg = uncore_pcibus_to_dieid(mc_dev->bus);
+ if (pkg == id)
+ break;
+ }
+ return mc_dev;
+}
+
+static int snr_uncore_mmio_map(struct intel_uncore_box *box,
+ unsigned int box_ctl, int mem_offset,
+ unsigned int device)
+{
+ struct pci_dev *pdev = snr_uncore_get_mc_dev(device, box->dieid);
+ struct intel_uncore_type *type = box->pmu->type;
+ resource_size_t addr;
+ u32 pci_dword;
+
+ if (!pdev)
+ return -ENODEV;
+
+ pci_read_config_dword(pdev, SNR_IMC_MMIO_BASE_OFFSET, &pci_dword);
+ addr = ((resource_size_t)pci_dword & SNR_IMC_MMIO_BASE_MASK) << 23;
+
+ pci_read_config_dword(pdev, mem_offset, &pci_dword);
+ addr |= (pci_dword & SNR_IMC_MMIO_MEM0_MASK) << 12;
+
+ addr += box_ctl;
+
+ pci_dev_put(pdev);
+
+ box->io_addr = ioremap(addr, type->mmio_map_size);
+ if (!box->io_addr) {
+ pr_warn("perf uncore: Failed to ioremap for %s.\n", type->name);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void __snr_uncore_mmio_init_box(struct intel_uncore_box *box,
+ unsigned int box_ctl, int mem_offset,
+ unsigned int device)
+{
+ if (!snr_uncore_mmio_map(box, box_ctl, mem_offset, device))
+ writel(IVBEP_PMON_BOX_CTL_INT, box->io_addr);
+}
+
+static void snr_uncore_mmio_init_box(struct intel_uncore_box *box)
+{
+ __snr_uncore_mmio_init_box(box, uncore_mmio_box_ctl(box),
+ SNR_IMC_MMIO_MEM0_OFFSET,
+ SNR_MC_DEVICE_ID);
+}
+
+static void snr_uncore_mmio_disable_box(struct intel_uncore_box *box)
+{
+ u32 config;
+
+ if (!box->io_addr)
+ return;
+
+ config = readl(box->io_addr);
+ config |= SNBEP_PMON_BOX_CTL_FRZ;
+ writel(config, box->io_addr);
+}
+
+static void snr_uncore_mmio_enable_box(struct intel_uncore_box *box)
+{
+ u32 config;
+
+ if (!box->io_addr)
+ return;
+
+ config = readl(box->io_addr);
+ config &= ~SNBEP_PMON_BOX_CTL_FRZ;
+ writel(config, box->io_addr);
+}
+
+static void snr_uncore_mmio_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (!box->io_addr)
+ return;
+
+ if (!uncore_mmio_is_valid_offset(box, hwc->config_base))
+ return;
+
+ writel(hwc->config | SNBEP_PMON_CTL_EN,
+ box->io_addr + hwc->config_base);
+}
+
+static void snr_uncore_mmio_disable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (!box->io_addr)
+ return;
+
+ if (!uncore_mmio_is_valid_offset(box, hwc->config_base))
+ return;
+
+ writel(hwc->config, box->io_addr + hwc->config_base);
+}
+
+static struct intel_uncore_ops snr_uncore_mmio_ops = {
+ .init_box = snr_uncore_mmio_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .disable_box = snr_uncore_mmio_disable_box,
+ .enable_box = snr_uncore_mmio_enable_box,
+ .disable_event = snr_uncore_mmio_disable_event,
+ .enable_event = snr_uncore_mmio_enable_event,
+ .read_counter = uncore_mmio_read_counter,
+};
+
+static struct uncore_event_desc snr_uncore_imc_events[] = {
+ INTEL_UNCORE_EVENT_DESC(clockticks, "event=0x00,umask=0x00"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read, "event=0x04,umask=0x0f"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x04,umask=0x30"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write.unit, "MiB"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_type snr_uncore_imc = {
+ .name = "imc",
+ .num_counters = 4,
+ .num_boxes = 2,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = SNR_IMC_MMIO_PMON_FIXED_CTR,
+ .fixed_ctl = SNR_IMC_MMIO_PMON_FIXED_CTL,
+ .event_descs = snr_uncore_imc_events,
+ .perf_ctr = SNR_IMC_MMIO_PMON_CTR0,
+ .event_ctl = SNR_IMC_MMIO_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNR_IMC_MMIO_PMON_BOX_CTL,
+ .mmio_offset = SNR_IMC_MMIO_OFFSET,
+ .mmio_map_size = SNR_IMC_MMIO_SIZE,
+ .ops = &snr_uncore_mmio_ops,
+ .format_group = &skx_uncore_format_group,
+};
+
+enum perf_uncore_snr_imc_freerunning_type_id {
+ SNR_IMC_DCLK,
+ SNR_IMC_DDR,
+
+ SNR_IMC_FREERUNNING_TYPE_MAX,
+};
+
+static struct freerunning_counters snr_imc_freerunning[] = {
+ [SNR_IMC_DCLK] = { 0x22b0, 0x0, 0, 1, 48 },
+ [SNR_IMC_DDR] = { 0x2290, 0x8, 0, 2, 48 },
+};
+
+static struct uncore_event_desc snr_uncore_imc_freerunning_events[] = {
+ INTEL_UNCORE_EVENT_DESC(dclk, "event=0xff,umask=0x10"),
+
+ INTEL_UNCORE_EVENT_DESC(read, "event=0xff,umask=0x20"),
+ INTEL_UNCORE_EVENT_DESC(read.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(read.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(write, "event=0xff,umask=0x21"),
+ INTEL_UNCORE_EVENT_DESC(write.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(write.unit, "MiB"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_ops snr_uncore_imc_freerunning_ops = {
+ .init_box = snr_uncore_mmio_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .read_counter = uncore_mmio_read_counter,
+ .hw_config = uncore_freerunning_hw_config,
+};
+
+static struct intel_uncore_type snr_uncore_imc_free_running = {
+ .name = "imc_free_running",
+ .num_counters = 3,
+ .num_boxes = 1,
+ .num_freerunning_types = SNR_IMC_FREERUNNING_TYPE_MAX,
+ .mmio_map_size = SNR_IMC_MMIO_SIZE,
+ .freerunning = snr_imc_freerunning,
+ .ops = &snr_uncore_imc_freerunning_ops,
+ .event_descs = snr_uncore_imc_freerunning_events,
+ .format_group = &skx_uncore_iio_freerunning_format_group,
+};
+
+static struct intel_uncore_type *snr_mmio_uncores[] = {
+ &snr_uncore_imc,
+ &snr_uncore_imc_free_running,
+ NULL,
+};
+
+void snr_uncore_mmio_init(void)
+{
+ uncore_mmio_uncores = snr_mmio_uncores;
+}
+
+/* end of SNR uncore support */
+
+/* ICX uncore support */
+
+static unsigned icx_cha_msr_offsets[] = {
+ 0x2a0, 0x2ae, 0x2bc, 0x2ca, 0x2d8, 0x2e6, 0x2f4, 0x302, 0x310,
+ 0x31e, 0x32c, 0x33a, 0x348, 0x356, 0x364, 0x372, 0x380, 0x38e,
+ 0x3aa, 0x3b8, 0x3c6, 0x3d4, 0x3e2, 0x3f0, 0x3fe, 0x40c, 0x41a,
+ 0x428, 0x436, 0x444, 0x452, 0x460, 0x46e, 0x47c, 0x0, 0xe,
+ 0x1c, 0x2a, 0x38, 0x46,
+};
+
+static int icx_cha_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ bool tie_en = !!(event->hw.config & SNBEP_CBO_PMON_CTL_TID_EN);
+
+ if (tie_en) {
+ reg1->reg = ICX_C34_MSR_PMON_BOX_FILTER0 +
+ icx_cha_msr_offsets[box->pmu->pmu_idx];
+ reg1->config = event->attr.config1 & SKX_CHA_MSR_PMON_BOX_FILTER_TID;
+ reg1->idx = 0;
+ }
+
+ return 0;
+}
+
+static struct intel_uncore_ops icx_uncore_chabox_ops = {
+ .init_box = ivbep_uncore_msr_init_box,
+ .disable_box = snbep_uncore_msr_disable_box,
+ .enable_box = snbep_uncore_msr_enable_box,
+ .disable_event = snbep_uncore_msr_disable_event,
+ .enable_event = snr_cha_enable_event,
+ .read_counter = uncore_msr_read_counter,
+ .hw_config = icx_cha_hw_config,
+};
+
+static struct intel_uncore_type icx_uncore_chabox = {
+ .name = "cha",
+ .num_counters = 4,
+ .perf_ctr_bits = 48,
+ .event_ctl = ICX_C34_MSR_PMON_CTL0,
+ .perf_ctr = ICX_C34_MSR_PMON_CTR0,
+ .box_ctl = ICX_C34_MSR_PMON_BOX_CTL,
+ .msr_offsets = icx_cha_msr_offsets,
+ .event_mask = HSWEP_S_MSR_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SNR_CHA_RAW_EVENT_MASK_EXT,
+ .constraints = skx_uncore_chabox_constraints,
+ .ops = &icx_uncore_chabox_ops,
+ .format_group = &snr_uncore_chabox_format_group,
+};
+
+static unsigned icx_msr_offsets[] = {
+ 0x0, 0x20, 0x40, 0x90, 0xb0, 0xd0,
+};
+
+static struct event_constraint icx_uncore_iio_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x02, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x03, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x83, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x88, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0xc0, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0xc5, 0xc),
+ UNCORE_EVENT_CONSTRAINT(0xd5, 0xc),
+ EVENT_CONSTRAINT_END
+};
+
+static umode_t
+icx_iio_mapping_visible(struct kobject *kobj, struct attribute *attr, int die)
+{
+ /* Root bus 0x00 is valid only for pmu_idx = 5. */
+ return pmu_iio_mapping_visible(kobj, attr, die, 5);
+}
+
+static struct attribute_group icx_iio_mapping_group = {
+ .is_visible = icx_iio_mapping_visible,
+};
+
+static const struct attribute_group *icx_iio_attr_update[] = {
+ &icx_iio_mapping_group,
+ NULL,
+};
+
+/*
+ * ICX has a static mapping of stack IDs from SAD_CONTROL_CFG notation to PMON
+ */
+enum {
+ ICX_PCIE1_PMON_ID,
+ ICX_PCIE2_PMON_ID,
+ ICX_PCIE3_PMON_ID,
+ ICX_PCIE4_PMON_ID,
+ ICX_PCIE5_PMON_ID,
+ ICX_CBDMA_DMI_PMON_ID
+};
+
+static u8 icx_sad_pmon_mapping[] = {
+ ICX_CBDMA_DMI_PMON_ID,
+ ICX_PCIE1_PMON_ID,
+ ICX_PCIE2_PMON_ID,
+ ICX_PCIE3_PMON_ID,
+ ICX_PCIE4_PMON_ID,
+ ICX_PCIE5_PMON_ID,
+};
+
+static int icx_iio_get_topology(struct intel_uncore_type *type)
+{
+ return sad_cfg_iio_topology(type, icx_sad_pmon_mapping);
+}
+
+static void icx_iio_set_mapping(struct intel_uncore_type *type)
+{
+ /* Detect ICX-D system. This case is not supported */
+ if (boot_cpu_data.x86_model == INTEL_FAM6_ICELAKE_D) {
+ pmu_clear_mapping_attr(type->attr_update, &icx_iio_mapping_group);
+ return;
+ }
+ pmu_iio_set_mapping(type, &icx_iio_mapping_group);
+}
+
+static void icx_iio_cleanup_mapping(struct intel_uncore_type *type)
+{
+ pmu_cleanup_mapping(type, &icx_iio_mapping_group);
+}
+
+static struct intel_uncore_type icx_uncore_iio = {
+ .name = "iio",
+ .num_counters = 4,
+ .num_boxes = 6,
+ .perf_ctr_bits = 48,
+ .event_ctl = ICX_IIO_MSR_PMON_CTL0,
+ .perf_ctr = ICX_IIO_MSR_PMON_CTR0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SNR_IIO_PMON_RAW_EVENT_MASK_EXT,
+ .box_ctl = ICX_IIO_MSR_PMON_BOX_CTL,
+ .msr_offsets = icx_msr_offsets,
+ .constraints = icx_uncore_iio_constraints,
+ .ops = &skx_uncore_iio_ops,
+ .format_group = &snr_uncore_iio_format_group,
+ .attr_update = icx_iio_attr_update,
+ .get_topology = icx_iio_get_topology,
+ .set_mapping = icx_iio_set_mapping,
+ .cleanup_mapping = icx_iio_cleanup_mapping,
+};
+
+static struct intel_uncore_type icx_uncore_irp = {
+ .name = "irp",
+ .num_counters = 2,
+ .num_boxes = 6,
+ .perf_ctr_bits = 48,
+ .event_ctl = ICX_IRP0_MSR_PMON_CTL0,
+ .perf_ctr = ICX_IRP0_MSR_PMON_CTR0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = ICX_IRP0_MSR_PMON_BOX_CTL,
+ .msr_offsets = icx_msr_offsets,
+ .ops = &ivbep_uncore_msr_ops,
+ .format_group = &ivbep_uncore_format_group,
+};
+
+static struct event_constraint icx_uncore_m2pcie_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x14, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x23, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2d, 0x3),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type icx_uncore_m2pcie = {
+ .name = "m2pcie",
+ .num_counters = 4,
+ .num_boxes = 6,
+ .perf_ctr_bits = 48,
+ .event_ctl = ICX_M2PCIE_MSR_PMON_CTL0,
+ .perf_ctr = ICX_M2PCIE_MSR_PMON_CTR0,
+ .box_ctl = ICX_M2PCIE_MSR_PMON_BOX_CTL,
+ .msr_offsets = icx_msr_offsets,
+ .constraints = icx_uncore_m2pcie_constraints,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .ops = &ivbep_uncore_msr_ops,
+ .format_group = &ivbep_uncore_format_group,
+};
+
+enum perf_uncore_icx_iio_freerunning_type_id {
+ ICX_IIO_MSR_IOCLK,
+ ICX_IIO_MSR_BW_IN,
+
+ ICX_IIO_FREERUNNING_TYPE_MAX,
+};
+
+static unsigned icx_iio_clk_freerunning_box_offsets[] = {
+ 0x0, 0x20, 0x40, 0x90, 0xb0, 0xd0,
+};
+
+static unsigned icx_iio_bw_freerunning_box_offsets[] = {
+ 0x0, 0x10, 0x20, 0x90, 0xa0, 0xb0,
+};
+
+static struct freerunning_counters icx_iio_freerunning[] = {
+ [ICX_IIO_MSR_IOCLK] = { 0xa55, 0x1, 0x20, 1, 48, icx_iio_clk_freerunning_box_offsets },
+ [ICX_IIO_MSR_BW_IN] = { 0xaa0, 0x1, 0x10, 8, 48, icx_iio_bw_freerunning_box_offsets },
+};
+
+static struct uncore_event_desc icx_uncore_iio_freerunning_events[] = {
+ /* Free-Running IIO CLOCKS Counter */
+ INTEL_UNCORE_EVENT_DESC(ioclk, "event=0xff,umask=0x10"),
+ /* Free-Running IIO BANDWIDTH IN Counters */
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0, "event=0xff,umask=0x20"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1, "event=0xff,umask=0x21"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2, "event=0xff,umask=0x22"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3, "event=0xff,umask=0x23"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port4, "event=0xff,umask=0x24"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port4.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port4.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port5, "event=0xff,umask=0x25"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port5.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port5.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port6, "event=0xff,umask=0x26"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port6.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port6.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port7, "event=0xff,umask=0x27"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port7.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port7.unit, "MiB"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_type icx_uncore_iio_free_running = {
+ .name = "iio_free_running",
+ .num_counters = 9,
+ .num_boxes = 6,
+ .num_freerunning_types = ICX_IIO_FREERUNNING_TYPE_MAX,
+ .freerunning = icx_iio_freerunning,
+ .ops = &skx_uncore_iio_freerunning_ops,
+ .event_descs = icx_uncore_iio_freerunning_events,
+ .format_group = &skx_uncore_iio_freerunning_format_group,
+};
+
+static struct intel_uncore_type *icx_msr_uncores[] = {
+ &skx_uncore_ubox,
+ &icx_uncore_chabox,
+ &icx_uncore_iio,
+ &icx_uncore_irp,
+ &icx_uncore_m2pcie,
+ &skx_uncore_pcu,
+ &icx_uncore_iio_free_running,
+ NULL,
+};
+
+/*
+ * To determine the number of CHAs, it should read CAPID6(Low) and CAPID7 (High)
+ * registers which located at Device 30, Function 3
+ */
+#define ICX_CAPID6 0x9c
+#define ICX_CAPID7 0xa0
+
+static u64 icx_count_chabox(void)
+{
+ struct pci_dev *dev = NULL;
+ u64 caps = 0;
+
+ dev = pci_get_device(PCI_VENDOR_ID_INTEL, 0x345b, dev);
+ if (!dev)
+ goto out;
+
+ pci_read_config_dword(dev, ICX_CAPID6, (u32 *)&caps);
+ pci_read_config_dword(dev, ICX_CAPID7, (u32 *)&caps + 1);
+out:
+ pci_dev_put(dev);
+ return hweight64(caps);
+}
+
+void icx_uncore_cpu_init(void)
+{
+ u64 num_boxes = icx_count_chabox();
+
+ if (WARN_ON(num_boxes > ARRAY_SIZE(icx_cha_msr_offsets)))
+ return;
+ icx_uncore_chabox.num_boxes = num_boxes;
+ uncore_msr_uncores = icx_msr_uncores;
+}
+
+static struct intel_uncore_type icx_uncore_m2m = {
+ .name = "m2m",
+ .num_counters = 4,
+ .num_boxes = 4,
+ .perf_ctr_bits = 48,
+ .perf_ctr = SNR_M2M_PCI_PMON_CTR0,
+ .event_ctl = SNR_M2M_PCI_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SNR_M2M_PCI_PMON_UMASK_EXT,
+ .box_ctl = SNR_M2M_PCI_PMON_BOX_CTL,
+ .ops = &snr_m2m_uncore_pci_ops,
+ .format_group = &snr_m2m_uncore_format_group,
+};
+
+static struct attribute *icx_upi_uncore_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask_ext4.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static const struct attribute_group icx_upi_uncore_format_group = {
+ .name = "format",
+ .attrs = icx_upi_uncore_formats_attr,
+};
+
+#define ICX_UPI_REGS_ADDR_DEVICE_LINK0 0x02
+#define ICX_UPI_REGS_ADDR_FUNCTION 0x01
+
+static int discover_upi_topology(struct intel_uncore_type *type, int ubox_did, int dev_link0)
+{
+ struct pci_dev *ubox = NULL;
+ struct pci_dev *dev = NULL;
+ u32 nid, gid;
+ int i, idx, ret = -EPERM;
+ struct intel_uncore_topology *upi;
+ unsigned int devfn;
+
+ /* GIDNIDMAP method supports machines which have less than 8 sockets. */
+ if (uncore_max_dies() > 8)
+ goto err;
+
+ while ((ubox = pci_get_device(PCI_VENDOR_ID_INTEL, ubox_did, ubox))) {
+ ret = upi_nodeid_groupid(ubox, SKX_CPUNODEID, SKX_GIDNIDMAP, &nid, &gid);
+ if (ret) {
+ ret = pcibios_err_to_errno(ret);
+ break;
+ }
+
+ for (i = 0; i < 8; i++) {
+ if (nid != GIDNIDMAP(gid, i))
+ continue;
+ for (idx = 0; idx < type->num_boxes; idx++) {
+ upi = &type->topology[nid][idx];
+ devfn = PCI_DEVFN(dev_link0 + idx, ICX_UPI_REGS_ADDR_FUNCTION);
+ dev = pci_get_domain_bus_and_slot(pci_domain_nr(ubox->bus),
+ ubox->bus->number,
+ devfn);
+ if (dev) {
+ ret = upi_fill_topology(dev, upi, idx);
+ if (ret)
+ goto err;
+ }
+ }
+ }
+ }
+err:
+ pci_dev_put(ubox);
+ pci_dev_put(dev);
+ return ret;
+}
+
+static int icx_upi_get_topology(struct intel_uncore_type *type)
+{
+ return discover_upi_topology(type, ICX_UBOX_DID, ICX_UPI_REGS_ADDR_DEVICE_LINK0);
+}
+
+static struct attribute_group icx_upi_mapping_group = {
+ .is_visible = skx_upi_mapping_visible,
+};
+
+static const struct attribute_group *icx_upi_attr_update[] = {
+ &icx_upi_mapping_group,
+ NULL
+};
+
+static void icx_upi_set_mapping(struct intel_uncore_type *type)
+{
+ pmu_upi_set_mapping(type, &icx_upi_mapping_group);
+}
+
+static void icx_upi_cleanup_mapping(struct intel_uncore_type *type)
+{
+ pmu_cleanup_mapping(type, &icx_upi_mapping_group);
+}
+
+static struct intel_uncore_type icx_uncore_upi = {
+ .name = "upi",
+ .num_counters = 4,
+ .num_boxes = 3,
+ .perf_ctr_bits = 48,
+ .perf_ctr = ICX_UPI_PCI_PMON_CTR0,
+ .event_ctl = ICX_UPI_PCI_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = ICX_UPI_CTL_UMASK_EXT,
+ .box_ctl = ICX_UPI_PCI_PMON_BOX_CTL,
+ .ops = &skx_upi_uncore_pci_ops,
+ .format_group = &icx_upi_uncore_format_group,
+ .attr_update = icx_upi_attr_update,
+ .get_topology = icx_upi_get_topology,
+ .set_mapping = icx_upi_set_mapping,
+ .cleanup_mapping = icx_upi_cleanup_mapping,
+};
+
+static struct event_constraint icx_uncore_m3upi_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x1c, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x1d, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x1e, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x1f, 0x1),
+ UNCORE_EVENT_CONSTRAINT(0x40, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x4e, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x4f, 0x7),
+ UNCORE_EVENT_CONSTRAINT(0x50, 0x7),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type icx_uncore_m3upi = {
+ .name = "m3upi",
+ .num_counters = 4,
+ .num_boxes = 3,
+ .perf_ctr_bits = 48,
+ .perf_ctr = ICX_M3UPI_PCI_PMON_CTR0,
+ .event_ctl = ICX_M3UPI_PCI_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = ICX_M3UPI_PCI_PMON_BOX_CTL,
+ .constraints = icx_uncore_m3upi_constraints,
+ .ops = &ivbep_uncore_pci_ops,
+ .format_group = &skx_uncore_format_group,
+};
+
+enum {
+ ICX_PCI_UNCORE_M2M,
+ ICX_PCI_UNCORE_UPI,
+ ICX_PCI_UNCORE_M3UPI,
+};
+
+static struct intel_uncore_type *icx_pci_uncores[] = {
+ [ICX_PCI_UNCORE_M2M] = &icx_uncore_m2m,
+ [ICX_PCI_UNCORE_UPI] = &icx_uncore_upi,
+ [ICX_PCI_UNCORE_M3UPI] = &icx_uncore_m3upi,
+ NULL,
+};
+
+static const struct pci_device_id icx_uncore_pci_ids[] = {
+ { /* M2M 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x344a),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(12, 0, ICX_PCI_UNCORE_M2M, 0),
+ },
+ { /* M2M 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x344a),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(13, 0, ICX_PCI_UNCORE_M2M, 1),
+ },
+ { /* M2M 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x344a),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(14, 0, ICX_PCI_UNCORE_M2M, 2),
+ },
+ { /* M2M 3 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x344a),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(15, 0, ICX_PCI_UNCORE_M2M, 3),
+ },
+ { /* UPI Link 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3441),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(2, 1, ICX_PCI_UNCORE_UPI, 0),
+ },
+ { /* UPI Link 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3441),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(3, 1, ICX_PCI_UNCORE_UPI, 1),
+ },
+ { /* UPI Link 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3441),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(4, 1, ICX_PCI_UNCORE_UPI, 2),
+ },
+ { /* M3UPI Link 0 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3446),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(5, 1, ICX_PCI_UNCORE_M3UPI, 0),
+ },
+ { /* M3UPI Link 1 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3446),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(6, 1, ICX_PCI_UNCORE_M3UPI, 1),
+ },
+ { /* M3UPI Link 2 */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x3446),
+ .driver_data = UNCORE_PCI_DEV_FULL_DATA(7, 1, ICX_PCI_UNCORE_M3UPI, 2),
+ },
+ { /* end: all zeroes */ }
+};
+
+static struct pci_driver icx_uncore_pci_driver = {
+ .name = "icx_uncore",
+ .id_table = icx_uncore_pci_ids,
+};
+
+int icx_uncore_pci_init(void)
+{
+ /* ICX UBOX DID */
+ int ret = snbep_pci2phy_map_init(0x3450, SKX_CPUNODEID,
+ SKX_GIDNIDMAP, true);
+
+ if (ret)
+ return ret;
+
+ uncore_pci_uncores = icx_pci_uncores;
+ uncore_pci_driver = &icx_uncore_pci_driver;
+ return 0;
+}
+
+static void icx_uncore_imc_init_box(struct intel_uncore_box *box)
+{
+ unsigned int box_ctl = box->pmu->type->box_ctl +
+ box->pmu->type->mmio_offset * (box->pmu->pmu_idx % ICX_NUMBER_IMC_CHN);
+ int mem_offset = (box->pmu->pmu_idx / ICX_NUMBER_IMC_CHN) * ICX_IMC_MEM_STRIDE +
+ SNR_IMC_MMIO_MEM0_OFFSET;
+
+ __snr_uncore_mmio_init_box(box, box_ctl, mem_offset,
+ SNR_MC_DEVICE_ID);
+}
+
+static struct intel_uncore_ops icx_uncore_mmio_ops = {
+ .init_box = icx_uncore_imc_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .disable_box = snr_uncore_mmio_disable_box,
+ .enable_box = snr_uncore_mmio_enable_box,
+ .disable_event = snr_uncore_mmio_disable_event,
+ .enable_event = snr_uncore_mmio_enable_event,
+ .read_counter = uncore_mmio_read_counter,
+};
+
+static struct intel_uncore_type icx_uncore_imc = {
+ .name = "imc",
+ .num_counters = 4,
+ .num_boxes = 12,
+ .perf_ctr_bits = 48,
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = SNR_IMC_MMIO_PMON_FIXED_CTR,
+ .fixed_ctl = SNR_IMC_MMIO_PMON_FIXED_CTL,
+ .event_descs = snr_uncore_imc_events,
+ .perf_ctr = SNR_IMC_MMIO_PMON_CTR0,
+ .event_ctl = SNR_IMC_MMIO_PMON_CTL0,
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .box_ctl = SNR_IMC_MMIO_PMON_BOX_CTL,
+ .mmio_offset = SNR_IMC_MMIO_OFFSET,
+ .mmio_map_size = SNR_IMC_MMIO_SIZE,
+ .ops = &icx_uncore_mmio_ops,
+ .format_group = &skx_uncore_format_group,
+};
+
+enum perf_uncore_icx_imc_freerunning_type_id {
+ ICX_IMC_DCLK,
+ ICX_IMC_DDR,
+ ICX_IMC_DDRT,
+
+ ICX_IMC_FREERUNNING_TYPE_MAX,
+};
+
+static struct freerunning_counters icx_imc_freerunning[] = {
+ [ICX_IMC_DCLK] = { 0x22b0, 0x0, 0, 1, 48 },
+ [ICX_IMC_DDR] = { 0x2290, 0x8, 0, 2, 48 },
+ [ICX_IMC_DDRT] = { 0x22a0, 0x8, 0, 2, 48 },
+};
+
+static struct uncore_event_desc icx_uncore_imc_freerunning_events[] = {
+ INTEL_UNCORE_EVENT_DESC(dclk, "event=0xff,umask=0x10"),
+
+ INTEL_UNCORE_EVENT_DESC(read, "event=0xff,umask=0x20"),
+ INTEL_UNCORE_EVENT_DESC(read.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(read.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(write, "event=0xff,umask=0x21"),
+ INTEL_UNCORE_EVENT_DESC(write.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(write.unit, "MiB"),
+
+ INTEL_UNCORE_EVENT_DESC(ddrt_read, "event=0xff,umask=0x30"),
+ INTEL_UNCORE_EVENT_DESC(ddrt_read.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(ddrt_read.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(ddrt_write, "event=0xff,umask=0x31"),
+ INTEL_UNCORE_EVENT_DESC(ddrt_write.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(ddrt_write.unit, "MiB"),
+ { /* end: all zeroes */ },
+};
+
+static void icx_uncore_imc_freerunning_init_box(struct intel_uncore_box *box)
+{
+ int mem_offset = box->pmu->pmu_idx * ICX_IMC_MEM_STRIDE +
+ SNR_IMC_MMIO_MEM0_OFFSET;
+
+ snr_uncore_mmio_map(box, uncore_mmio_box_ctl(box),
+ mem_offset, SNR_MC_DEVICE_ID);
+}
+
+static struct intel_uncore_ops icx_uncore_imc_freerunning_ops = {
+ .init_box = icx_uncore_imc_freerunning_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .read_counter = uncore_mmio_read_counter,
+ .hw_config = uncore_freerunning_hw_config,
+};
+
+static struct intel_uncore_type icx_uncore_imc_free_running = {
+ .name = "imc_free_running",
+ .num_counters = 5,
+ .num_boxes = 4,
+ .num_freerunning_types = ICX_IMC_FREERUNNING_TYPE_MAX,
+ .mmio_map_size = SNR_IMC_MMIO_SIZE,
+ .freerunning = icx_imc_freerunning,
+ .ops = &icx_uncore_imc_freerunning_ops,
+ .event_descs = icx_uncore_imc_freerunning_events,
+ .format_group = &skx_uncore_iio_freerunning_format_group,
+};
+
+static struct intel_uncore_type *icx_mmio_uncores[] = {
+ &icx_uncore_imc,
+ &icx_uncore_imc_free_running,
+ NULL,
+};
+
+void icx_uncore_mmio_init(void)
+{
+ uncore_mmio_uncores = icx_mmio_uncores;
+}
+
+/* end of ICX uncore support */
+
+/* SPR uncore support */
+
+static void spr_uncore_msr_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+
+ if (reg1->idx != EXTRA_REG_NONE)
+ wrmsrl(reg1->reg, reg1->config);
+
+ wrmsrl(hwc->config_base, hwc->config);
+}
+
+static void spr_uncore_msr_disable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ struct hw_perf_event_extra *reg1 = &hwc->extra_reg;
+
+ if (reg1->idx != EXTRA_REG_NONE)
+ wrmsrl(reg1->reg, 0);
+
+ wrmsrl(hwc->config_base, 0);
+}
+
+static int spr_cha_hw_config(struct intel_uncore_box *box, struct perf_event *event)
+{
+ struct hw_perf_event_extra *reg1 = &event->hw.extra_reg;
+ bool tie_en = !!(event->hw.config & SPR_CHA_PMON_CTL_TID_EN);
+ struct intel_uncore_type *type = box->pmu->type;
+
+ if (tie_en) {
+ reg1->reg = SPR_C0_MSR_PMON_BOX_FILTER0 +
+ HSWEP_CBO_MSR_OFFSET * type->box_ids[box->pmu->pmu_idx];
+ reg1->config = event->attr.config1 & SPR_CHA_PMON_BOX_FILTER_TID;
+ reg1->idx = 0;
+ }
+
+ return 0;
+}
+
+static struct intel_uncore_ops spr_uncore_chabox_ops = {
+ .init_box = intel_generic_uncore_msr_init_box,
+ .disable_box = intel_generic_uncore_msr_disable_box,
+ .enable_box = intel_generic_uncore_msr_enable_box,
+ .disable_event = spr_uncore_msr_disable_event,
+ .enable_event = spr_uncore_msr_enable_event,
+ .read_counter = uncore_msr_read_counter,
+ .hw_config = spr_cha_hw_config,
+ .get_constraint = uncore_get_constraint,
+ .put_constraint = uncore_put_constraint,
+};
+
+static struct attribute *spr_uncore_cha_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask_ext4.attr,
+ &format_attr_tid_en2.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ &format_attr_filter_tid5.attr,
+ NULL,
+};
+static const struct attribute_group spr_uncore_chabox_format_group = {
+ .name = "format",
+ .attrs = spr_uncore_cha_formats_attr,
+};
+
+static ssize_t alias_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct intel_uncore_pmu *pmu = dev_to_uncore_pmu(dev);
+ char pmu_name[UNCORE_PMU_NAME_LEN];
+
+ uncore_get_alias_name(pmu_name, pmu);
+ return sysfs_emit(buf, "%s\n", pmu_name);
+}
+
+static DEVICE_ATTR_RO(alias);
+
+static struct attribute *uncore_alias_attrs[] = {
+ &dev_attr_alias.attr,
+ NULL
+};
+
+ATTRIBUTE_GROUPS(uncore_alias);
+
+static struct intel_uncore_type spr_uncore_chabox = {
+ .name = "cha",
+ .event_mask = SPR_CHA_PMON_EVENT_MASK,
+ .event_mask_ext = SPR_RAW_EVENT_MASK_EXT,
+ .num_shared_regs = 1,
+ .constraints = skx_uncore_chabox_constraints,
+ .ops = &spr_uncore_chabox_ops,
+ .format_group = &spr_uncore_chabox_format_group,
+ .attr_update = uncore_alias_groups,
+};
+
+static struct intel_uncore_type spr_uncore_iio = {
+ .name = "iio",
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SNR_IIO_PMON_RAW_EVENT_MASK_EXT,
+ .format_group = &snr_uncore_iio_format_group,
+ .attr_update = uncore_alias_groups,
+ .constraints = icx_uncore_iio_constraints,
+};
+
+static struct attribute *spr_uncore_raw_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask_ext4.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static const struct attribute_group spr_uncore_raw_format_group = {
+ .name = "format",
+ .attrs = spr_uncore_raw_formats_attr,
+};
+
+#define SPR_UNCORE_COMMON_FORMAT() \
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK, \
+ .event_mask_ext = SPR_RAW_EVENT_MASK_EXT, \
+ .format_group = &spr_uncore_raw_format_group, \
+ .attr_update = uncore_alias_groups
+
+static struct intel_uncore_type spr_uncore_irp = {
+ SPR_UNCORE_COMMON_FORMAT(),
+ .name = "irp",
+
+};
+
+static struct event_constraint spr_uncore_m2pcie_constraints[] = {
+ UNCORE_EVENT_CONSTRAINT(0x14, 0x3),
+ UNCORE_EVENT_CONSTRAINT(0x2d, 0x3),
+ EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type spr_uncore_m2pcie = {
+ SPR_UNCORE_COMMON_FORMAT(),
+ .name = "m2pcie",
+ .constraints = spr_uncore_m2pcie_constraints,
+};
+
+static struct intel_uncore_type spr_uncore_pcu = {
+ .name = "pcu",
+ .attr_update = uncore_alias_groups,
+};
+
+static void spr_uncore_mmio_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (!box->io_addr)
+ return;
+
+ if (uncore_pmc_fixed(hwc->idx))
+ writel(SNBEP_PMON_CTL_EN, box->io_addr + hwc->config_base);
+ else
+ writel(hwc->config, box->io_addr + hwc->config_base);
+}
+
+static struct intel_uncore_ops spr_uncore_mmio_ops = {
+ .init_box = intel_generic_uncore_mmio_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .disable_box = intel_generic_uncore_mmio_disable_box,
+ .enable_box = intel_generic_uncore_mmio_enable_box,
+ .disable_event = intel_generic_uncore_mmio_disable_event,
+ .enable_event = spr_uncore_mmio_enable_event,
+ .read_counter = uncore_mmio_read_counter,
+};
+
+static struct uncore_event_desc spr_uncore_imc_events[] = {
+ INTEL_UNCORE_EVENT_DESC(clockticks, "event=0x01,umask=0x00"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read, "event=0x05,umask=0xcf"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_read.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write, "event=0x05,umask=0xf0"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write.scale, "6.103515625e-5"),
+ INTEL_UNCORE_EVENT_DESC(cas_count_write.unit, "MiB"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_type spr_uncore_imc = {
+ SPR_UNCORE_COMMON_FORMAT(),
+ .name = "imc",
+ .fixed_ctr_bits = 48,
+ .fixed_ctr = SNR_IMC_MMIO_PMON_FIXED_CTR,
+ .fixed_ctl = SNR_IMC_MMIO_PMON_FIXED_CTL,
+ .ops = &spr_uncore_mmio_ops,
+ .event_descs = spr_uncore_imc_events,
+};
+
+static void spr_uncore_pci_enable_event(struct intel_uncore_box *box,
+ struct perf_event *event)
+{
+ struct pci_dev *pdev = box->pci_dev;
+ struct hw_perf_event *hwc = &event->hw;
+
+ pci_write_config_dword(pdev, hwc->config_base + 4, (u32)(hwc->config >> 32));
+ pci_write_config_dword(pdev, hwc->config_base, (u32)hwc->config);
+}
+
+static struct intel_uncore_ops spr_uncore_pci_ops = {
+ .init_box = intel_generic_uncore_pci_init_box,
+ .disable_box = intel_generic_uncore_pci_disable_box,
+ .enable_box = intel_generic_uncore_pci_enable_box,
+ .disable_event = intel_generic_uncore_pci_disable_event,
+ .enable_event = spr_uncore_pci_enable_event,
+ .read_counter = intel_generic_uncore_pci_read_counter,
+};
+
+#define SPR_UNCORE_PCI_COMMON_FORMAT() \
+ SPR_UNCORE_COMMON_FORMAT(), \
+ .ops = &spr_uncore_pci_ops
+
+static struct intel_uncore_type spr_uncore_m2m = {
+ SPR_UNCORE_PCI_COMMON_FORMAT(),
+ .name = "m2m",
+};
+
+static struct attribute_group spr_upi_mapping_group = {
+ .is_visible = skx_upi_mapping_visible,
+};
+
+static const struct attribute_group *spr_upi_attr_update[] = {
+ &uncore_alias_group,
+ &spr_upi_mapping_group,
+ NULL
+};
+
+#define SPR_UPI_REGS_ADDR_DEVICE_LINK0 0x01
+
+static void spr_upi_set_mapping(struct intel_uncore_type *type)
+{
+ pmu_upi_set_mapping(type, &spr_upi_mapping_group);
+}
+
+static void spr_upi_cleanup_mapping(struct intel_uncore_type *type)
+{
+ pmu_cleanup_mapping(type, &spr_upi_mapping_group);
+}
+
+static int spr_upi_get_topology(struct intel_uncore_type *type)
+{
+ return discover_upi_topology(type, SPR_UBOX_DID, SPR_UPI_REGS_ADDR_DEVICE_LINK0);
+}
+
+static struct intel_uncore_type spr_uncore_mdf = {
+ SPR_UNCORE_COMMON_FORMAT(),
+ .name = "mdf",
+};
+
+#define UNCORE_SPR_NUM_UNCORE_TYPES 12
+#define UNCORE_SPR_IIO 1
+#define UNCORE_SPR_IMC 6
+#define UNCORE_SPR_UPI 8
+#define UNCORE_SPR_M3UPI 9
+
+/*
+ * The uncore units, which are supported by the discovery table,
+ * are defined here.
+ */
+static struct intel_uncore_type *spr_uncores[UNCORE_SPR_NUM_UNCORE_TYPES] = {
+ &spr_uncore_chabox,
+ &spr_uncore_iio,
+ &spr_uncore_irp,
+ &spr_uncore_m2pcie,
+ &spr_uncore_pcu,
+ NULL,
+ &spr_uncore_imc,
+ &spr_uncore_m2m,
+ NULL,
+ NULL,
+ NULL,
+ &spr_uncore_mdf,
+};
+
+/*
+ * The uncore units, which are not supported by the discovery table,
+ * are implemented from here.
+ */
+#define SPR_UNCORE_UPI_NUM_BOXES 4
+
+static unsigned int spr_upi_pci_offsets[SPR_UNCORE_UPI_NUM_BOXES] = {
+ 0, 0x8000, 0x10000, 0x18000
+};
+
+static struct intel_uncore_type spr_uncore_upi = {
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK,
+ .event_mask_ext = SPR_RAW_EVENT_MASK_EXT,
+ .format_group = &spr_uncore_raw_format_group,
+ .ops = &spr_uncore_pci_ops,
+ .name = "upi",
+ .attr_update = spr_upi_attr_update,
+ .get_topology = spr_upi_get_topology,
+ .set_mapping = spr_upi_set_mapping,
+ .cleanup_mapping = spr_upi_cleanup_mapping,
+ .type_id = UNCORE_SPR_UPI,
+ .num_counters = 4,
+ .num_boxes = SPR_UNCORE_UPI_NUM_BOXES,
+ .perf_ctr_bits = 48,
+ .perf_ctr = ICX_UPI_PCI_PMON_CTR0,
+ .event_ctl = ICX_UPI_PCI_PMON_CTL0,
+ .box_ctl = ICX_UPI_PCI_PMON_BOX_CTL,
+ .pci_offsets = spr_upi_pci_offsets,
+};
+
+static struct intel_uncore_type spr_uncore_m3upi = {
+ SPR_UNCORE_PCI_COMMON_FORMAT(),
+ .name = "m3upi",
+ .type_id = UNCORE_SPR_M3UPI,
+ .num_counters = 4,
+ .num_boxes = SPR_UNCORE_UPI_NUM_BOXES,
+ .perf_ctr_bits = 48,
+ .perf_ctr = ICX_M3UPI_PCI_PMON_CTR0,
+ .event_ctl = ICX_M3UPI_PCI_PMON_CTL0,
+ .box_ctl = ICX_M3UPI_PCI_PMON_BOX_CTL,
+ .pci_offsets = spr_upi_pci_offsets,
+ .constraints = icx_uncore_m3upi_constraints,
+};
+
+enum perf_uncore_spr_iio_freerunning_type_id {
+ SPR_IIO_MSR_IOCLK,
+ SPR_IIO_MSR_BW_IN,
+ SPR_IIO_MSR_BW_OUT,
+
+ SPR_IIO_FREERUNNING_TYPE_MAX,
+};
+
+static struct freerunning_counters spr_iio_freerunning[] = {
+ [SPR_IIO_MSR_IOCLK] = { 0x340e, 0x1, 0x10, 1, 48 },
+ [SPR_IIO_MSR_BW_IN] = { 0x3800, 0x1, 0x10, 8, 48 },
+ [SPR_IIO_MSR_BW_OUT] = { 0x3808, 0x1, 0x10, 8, 48 },
+};
+
+static struct uncore_event_desc spr_uncore_iio_freerunning_events[] = {
+ /* Free-Running IIO CLOCKS Counter */
+ INTEL_UNCORE_EVENT_DESC(ioclk, "event=0xff,umask=0x10"),
+ /* Free-Running IIO BANDWIDTH IN Counters */
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0, "event=0xff,umask=0x20"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port0.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1, "event=0xff,umask=0x21"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port1.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2, "event=0xff,umask=0x22"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port2.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3, "event=0xff,umask=0x23"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port3.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port4, "event=0xff,umask=0x24"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port4.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port4.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port5, "event=0xff,umask=0x25"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port5.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port5.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port6, "event=0xff,umask=0x26"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port6.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port6.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port7, "event=0xff,umask=0x27"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port7.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_in_port7.unit, "MiB"),
+ /* Free-Running IIO BANDWIDTH OUT Counters */
+ INTEL_UNCORE_EVENT_DESC(bw_out_port0, "event=0xff,umask=0x30"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port0.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port0.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port1, "event=0xff,umask=0x31"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port1.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port1.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port2, "event=0xff,umask=0x32"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port2.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port2.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port3, "event=0xff,umask=0x33"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port3.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port3.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port4, "event=0xff,umask=0x34"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port4.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port4.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port5, "event=0xff,umask=0x35"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port5.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port5.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port6, "event=0xff,umask=0x36"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port6.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port6.unit, "MiB"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port7, "event=0xff,umask=0x37"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port7.scale, "3.814697266e-6"),
+ INTEL_UNCORE_EVENT_DESC(bw_out_port7.unit, "MiB"),
+ { /* end: all zeroes */ },
+};
+
+static struct intel_uncore_type spr_uncore_iio_free_running = {
+ .name = "iio_free_running",
+ .num_counters = 17,
+ .num_freerunning_types = SPR_IIO_FREERUNNING_TYPE_MAX,
+ .freerunning = spr_iio_freerunning,
+ .ops = &skx_uncore_iio_freerunning_ops,
+ .event_descs = spr_uncore_iio_freerunning_events,
+ .format_group = &skx_uncore_iio_freerunning_format_group,
+};
+
+enum perf_uncore_spr_imc_freerunning_type_id {
+ SPR_IMC_DCLK,
+ SPR_IMC_PQ_CYCLES,
+
+ SPR_IMC_FREERUNNING_TYPE_MAX,
+};
+
+static struct freerunning_counters spr_imc_freerunning[] = {
+ [SPR_IMC_DCLK] = { 0x22b0, 0x0, 0, 1, 48 },
+ [SPR_IMC_PQ_CYCLES] = { 0x2318, 0x8, 0, 2, 48 },
+};
+
+static struct uncore_event_desc spr_uncore_imc_freerunning_events[] = {
+ INTEL_UNCORE_EVENT_DESC(dclk, "event=0xff,umask=0x10"),
+
+ INTEL_UNCORE_EVENT_DESC(rpq_cycles, "event=0xff,umask=0x20"),
+ INTEL_UNCORE_EVENT_DESC(wpq_cycles, "event=0xff,umask=0x21"),
+ { /* end: all zeroes */ },
+};
+
+#define SPR_MC_DEVICE_ID 0x3251
+
+static void spr_uncore_imc_freerunning_init_box(struct intel_uncore_box *box)
+{
+ int mem_offset = box->pmu->pmu_idx * ICX_IMC_MEM_STRIDE + SNR_IMC_MMIO_MEM0_OFFSET;
+
+ snr_uncore_mmio_map(box, uncore_mmio_box_ctl(box),
+ mem_offset, SPR_MC_DEVICE_ID);
+}
+
+static struct intel_uncore_ops spr_uncore_imc_freerunning_ops = {
+ .init_box = spr_uncore_imc_freerunning_init_box,
+ .exit_box = uncore_mmio_exit_box,
+ .read_counter = uncore_mmio_read_counter,
+ .hw_config = uncore_freerunning_hw_config,
+};
+
+static struct intel_uncore_type spr_uncore_imc_free_running = {
+ .name = "imc_free_running",
+ .num_counters = 3,
+ .mmio_map_size = SNR_IMC_MMIO_SIZE,
+ .num_freerunning_types = SPR_IMC_FREERUNNING_TYPE_MAX,
+ .freerunning = spr_imc_freerunning,
+ .ops = &spr_uncore_imc_freerunning_ops,
+ .event_descs = spr_uncore_imc_freerunning_events,
+ .format_group = &skx_uncore_iio_freerunning_format_group,
+};
+
+#define UNCORE_SPR_MSR_EXTRA_UNCORES 1
+#define UNCORE_SPR_MMIO_EXTRA_UNCORES 1
+#define UNCORE_SPR_PCI_EXTRA_UNCORES 2
+
+static struct intel_uncore_type *spr_msr_uncores[UNCORE_SPR_MSR_EXTRA_UNCORES] = {
+ &spr_uncore_iio_free_running,
+};
+
+static struct intel_uncore_type *spr_mmio_uncores[UNCORE_SPR_MMIO_EXTRA_UNCORES] = {
+ &spr_uncore_imc_free_running,
+};
+
+static struct intel_uncore_type *spr_pci_uncores[UNCORE_SPR_PCI_EXTRA_UNCORES] = {
+ &spr_uncore_upi,
+ &spr_uncore_m3upi
+};
+
+int spr_uncore_units_ignore[] = {
+ UNCORE_SPR_UPI,
+ UNCORE_SPR_M3UPI,
+ UNCORE_IGNORE_END
+};
+
+static void uncore_type_customized_copy(struct intel_uncore_type *to_type,
+ struct intel_uncore_type *from_type)
+{
+ if (!to_type || !from_type)
+ return;
+
+ if (from_type->name)
+ to_type->name = from_type->name;
+ if (from_type->fixed_ctr_bits)
+ to_type->fixed_ctr_bits = from_type->fixed_ctr_bits;
+ if (from_type->event_mask)
+ to_type->event_mask = from_type->event_mask;
+ if (from_type->event_mask_ext)
+ to_type->event_mask_ext = from_type->event_mask_ext;
+ if (from_type->fixed_ctr)
+ to_type->fixed_ctr = from_type->fixed_ctr;
+ if (from_type->fixed_ctl)
+ to_type->fixed_ctl = from_type->fixed_ctl;
+ if (from_type->fixed_ctr_bits)
+ to_type->fixed_ctr_bits = from_type->fixed_ctr_bits;
+ if (from_type->num_shared_regs)
+ to_type->num_shared_regs = from_type->num_shared_regs;
+ if (from_type->constraints)
+ to_type->constraints = from_type->constraints;
+ if (from_type->ops)
+ to_type->ops = from_type->ops;
+ if (from_type->event_descs)
+ to_type->event_descs = from_type->event_descs;
+ if (from_type->format_group)
+ to_type->format_group = from_type->format_group;
+ if (from_type->attr_update)
+ to_type->attr_update = from_type->attr_update;
+ if (from_type->set_mapping)
+ to_type->set_mapping = from_type->set_mapping;
+ if (from_type->get_topology)
+ to_type->get_topology = from_type->get_topology;
+ if (from_type->cleanup_mapping)
+ to_type->cleanup_mapping = from_type->cleanup_mapping;
+}
+
+static struct intel_uncore_type **
+uncore_get_uncores(enum uncore_access_type type_id, int num_extra,
+ struct intel_uncore_type **extra)
+{
+ struct intel_uncore_type **types, **start_types;
+ int i;
+
+ start_types = types = intel_uncore_generic_init_uncores(type_id, num_extra);
+
+ /* Only copy the customized features */
+ for (; *types; types++) {
+ if ((*types)->type_id >= UNCORE_SPR_NUM_UNCORE_TYPES)
+ continue;
+ uncore_type_customized_copy(*types, spr_uncores[(*types)->type_id]);
+ }
+
+ for (i = 0; i < num_extra; i++, types++)
+ *types = extra[i];
+
+ return start_types;
+}
+
+static struct intel_uncore_type *
+uncore_find_type_by_id(struct intel_uncore_type **types, int type_id)
+{
+ for (; *types; types++) {
+ if (type_id == (*types)->type_id)
+ return *types;
+ }
+
+ return NULL;
+}
+
+static int uncore_type_max_boxes(struct intel_uncore_type **types,
+ int type_id)
+{
+ struct intel_uncore_type *type;
+ int i, max = 0;
+
+ type = uncore_find_type_by_id(types, type_id);
+ if (!type)
+ return 0;
+
+ for (i = 0; i < type->num_boxes; i++) {
+ if (type->box_ids[i] > max)
+ max = type->box_ids[i];
+ }
+
+ return max + 1;
+}
+
+void spr_uncore_cpu_init(void)
+{
+ uncore_msr_uncores = uncore_get_uncores(UNCORE_ACCESS_MSR,
+ UNCORE_SPR_MSR_EXTRA_UNCORES,
+ spr_msr_uncores);
+
+ spr_uncore_iio_free_running.num_boxes = uncore_type_max_boxes(uncore_msr_uncores, UNCORE_SPR_IIO);
+}
+
+#define SPR_UNCORE_UPI_PCIID 0x3241
+#define SPR_UNCORE_UPI0_DEVFN 0x9
+#define SPR_UNCORE_M3UPI_PCIID 0x3246
+#define SPR_UNCORE_M3UPI0_DEVFN 0x29
+
+static void spr_update_device_location(int type_id)
+{
+ struct intel_uncore_type *type;
+ struct pci_dev *dev = NULL;
+ u32 device, devfn;
+ u64 *ctls;
+ int die;
+
+ if (type_id == UNCORE_SPR_UPI) {
+ type = &spr_uncore_upi;
+ device = SPR_UNCORE_UPI_PCIID;
+ devfn = SPR_UNCORE_UPI0_DEVFN;
+ } else if (type_id == UNCORE_SPR_M3UPI) {
+ type = &spr_uncore_m3upi;
+ device = SPR_UNCORE_M3UPI_PCIID;
+ devfn = SPR_UNCORE_M3UPI0_DEVFN;
+ } else
+ return;
+
+ ctls = kcalloc(__uncore_max_dies, sizeof(u64), GFP_KERNEL);
+ if (!ctls) {
+ type->num_boxes = 0;
+ return;
+ }
+
+ while ((dev = pci_get_device(PCI_VENDOR_ID_INTEL, device, dev)) != NULL) {
+ if (devfn != dev->devfn)
+ continue;
+
+ die = uncore_device_to_die(dev);
+ if (die < 0)
+ continue;
+
+ ctls[die] = pci_domain_nr(dev->bus) << UNCORE_DISCOVERY_PCI_DOMAIN_OFFSET |
+ dev->bus->number << UNCORE_DISCOVERY_PCI_BUS_OFFSET |
+ devfn << UNCORE_DISCOVERY_PCI_DEVFN_OFFSET |
+ type->box_ctl;
+ }
+
+ type->box_ctls = ctls;
+}
+
+int spr_uncore_pci_init(void)
+{
+ /*
+ * The discovery table of UPI on some SPR variant is broken,
+ * which impacts the detection of both UPI and M3UPI uncore PMON.
+ * Use the pre-defined UPI and M3UPI table to replace.
+ *
+ * The accurate location, e.g., domain and BUS number,
+ * can only be retrieved at load time.
+ * Update the location of UPI and M3UPI.
+ */
+ spr_update_device_location(UNCORE_SPR_UPI);
+ spr_update_device_location(UNCORE_SPR_M3UPI);
+ uncore_pci_uncores = uncore_get_uncores(UNCORE_ACCESS_PCI,
+ UNCORE_SPR_PCI_EXTRA_UNCORES,
+ spr_pci_uncores);
+ return 0;
+}
+
+void spr_uncore_mmio_init(void)
+{
+ int ret = snbep_pci2phy_map_init(0x3250, SKX_CPUNODEID, SKX_GIDNIDMAP, true);
+
+ if (ret)
+ uncore_mmio_uncores = uncore_get_uncores(UNCORE_ACCESS_MMIO, 0, NULL);
+ else {
+ uncore_mmio_uncores = uncore_get_uncores(UNCORE_ACCESS_MMIO,
+ UNCORE_SPR_MMIO_EXTRA_UNCORES,
+ spr_mmio_uncores);
+
+ spr_uncore_imc_free_running.num_boxes = uncore_type_max_boxes(uncore_mmio_uncores, UNCORE_SPR_IMC) / 2;
+ }
+}
+
+/* end of SPR uncore support */
diff --git a/arch/x86/events/msr.c b/arch/x86/events/msr.c
new file mode 100644
index 000000000000..0feaaa571303
--- /dev/null
+++ b/arch/x86/events/msr.c
@@ -0,0 +1,318 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/perf_event.h>
+#include <linux/sysfs.h>
+#include <linux/nospec.h>
+#include <asm/intel-family.h>
+#include "probe.h"
+
+enum perf_msr_id {
+ PERF_MSR_TSC = 0,
+ PERF_MSR_APERF = 1,
+ PERF_MSR_MPERF = 2,
+ PERF_MSR_PPERF = 3,
+ PERF_MSR_SMI = 4,
+ PERF_MSR_PTSC = 5,
+ PERF_MSR_IRPERF = 6,
+ PERF_MSR_THERM = 7,
+ PERF_MSR_EVENT_MAX,
+};
+
+static bool test_aperfmperf(int idx, void *data)
+{
+ return boot_cpu_has(X86_FEATURE_APERFMPERF);
+}
+
+static bool test_ptsc(int idx, void *data)
+{
+ return boot_cpu_has(X86_FEATURE_PTSC);
+}
+
+static bool test_irperf(int idx, void *data)
+{
+ return boot_cpu_has(X86_FEATURE_IRPERF);
+}
+
+static bool test_therm_status(int idx, void *data)
+{
+ return boot_cpu_has(X86_FEATURE_DTHERM);
+}
+
+static bool test_intel(int idx, void *data)
+{
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_INTEL ||
+ boot_cpu_data.x86 != 6)
+ return false;
+
+ switch (boot_cpu_data.x86_model) {
+ case INTEL_FAM6_NEHALEM:
+ case INTEL_FAM6_NEHALEM_G:
+ case INTEL_FAM6_NEHALEM_EP:
+ case INTEL_FAM6_NEHALEM_EX:
+
+ case INTEL_FAM6_WESTMERE:
+ case INTEL_FAM6_WESTMERE_EP:
+ case INTEL_FAM6_WESTMERE_EX:
+
+ case INTEL_FAM6_SANDYBRIDGE:
+ case INTEL_FAM6_SANDYBRIDGE_X:
+
+ case INTEL_FAM6_IVYBRIDGE:
+ case INTEL_FAM6_IVYBRIDGE_X:
+
+ case INTEL_FAM6_HASWELL:
+ case INTEL_FAM6_HASWELL_X:
+ case INTEL_FAM6_HASWELL_L:
+ case INTEL_FAM6_HASWELL_G:
+
+ case INTEL_FAM6_BROADWELL:
+ case INTEL_FAM6_BROADWELL_D:
+ case INTEL_FAM6_BROADWELL_G:
+ case INTEL_FAM6_BROADWELL_X:
+ case INTEL_FAM6_SAPPHIRERAPIDS_X:
+ case INTEL_FAM6_EMERALDRAPIDS_X:
+ case INTEL_FAM6_GRANITERAPIDS_X:
+ case INTEL_FAM6_GRANITERAPIDS_D:
+
+ case INTEL_FAM6_ATOM_SILVERMONT:
+ case INTEL_FAM6_ATOM_SILVERMONT_D:
+ case INTEL_FAM6_ATOM_AIRMONT:
+
+ case INTEL_FAM6_ATOM_GOLDMONT:
+ case INTEL_FAM6_ATOM_GOLDMONT_D:
+ case INTEL_FAM6_ATOM_GOLDMONT_PLUS:
+ case INTEL_FAM6_ATOM_TREMONT_D:
+ case INTEL_FAM6_ATOM_TREMONT:
+ case INTEL_FAM6_ATOM_TREMONT_L:
+
+ case INTEL_FAM6_XEON_PHI_KNL:
+ case INTEL_FAM6_XEON_PHI_KNM:
+ if (idx == PERF_MSR_SMI)
+ return true;
+ break;
+
+ case INTEL_FAM6_SKYLAKE_L:
+ case INTEL_FAM6_SKYLAKE:
+ case INTEL_FAM6_SKYLAKE_X:
+ case INTEL_FAM6_KABYLAKE_L:
+ case INTEL_FAM6_KABYLAKE:
+ case INTEL_FAM6_COMETLAKE_L:
+ case INTEL_FAM6_COMETLAKE:
+ case INTEL_FAM6_ICELAKE_L:
+ case INTEL_FAM6_ICELAKE:
+ case INTEL_FAM6_ICELAKE_X:
+ case INTEL_FAM6_ICELAKE_D:
+ case INTEL_FAM6_TIGERLAKE_L:
+ case INTEL_FAM6_TIGERLAKE:
+ case INTEL_FAM6_ROCKETLAKE:
+ case INTEL_FAM6_ALDERLAKE:
+ case INTEL_FAM6_ALDERLAKE_L:
+ case INTEL_FAM6_ALDERLAKE_N:
+ case INTEL_FAM6_RAPTORLAKE:
+ case INTEL_FAM6_RAPTORLAKE_P:
+ case INTEL_FAM6_RAPTORLAKE_S:
+ case INTEL_FAM6_METEORLAKE:
+ case INTEL_FAM6_METEORLAKE_L:
+ if (idx == PERF_MSR_SMI || idx == PERF_MSR_PPERF)
+ return true;
+ break;
+ }
+
+ return false;
+}
+
+PMU_EVENT_ATTR_STRING(tsc, attr_tsc, "event=0x00" );
+PMU_EVENT_ATTR_STRING(aperf, attr_aperf, "event=0x01" );
+PMU_EVENT_ATTR_STRING(mperf, attr_mperf, "event=0x02" );
+PMU_EVENT_ATTR_STRING(pperf, attr_pperf, "event=0x03" );
+PMU_EVENT_ATTR_STRING(smi, attr_smi, "event=0x04" );
+PMU_EVENT_ATTR_STRING(ptsc, attr_ptsc, "event=0x05" );
+PMU_EVENT_ATTR_STRING(irperf, attr_irperf, "event=0x06" );
+PMU_EVENT_ATTR_STRING(cpu_thermal_margin, attr_therm, "event=0x07" );
+PMU_EVENT_ATTR_STRING(cpu_thermal_margin.snapshot, attr_therm_snap, "1" );
+PMU_EVENT_ATTR_STRING(cpu_thermal_margin.unit, attr_therm_unit, "C" );
+
+static unsigned long msr_mask;
+
+PMU_EVENT_GROUP(events, aperf);
+PMU_EVENT_GROUP(events, mperf);
+PMU_EVENT_GROUP(events, pperf);
+PMU_EVENT_GROUP(events, smi);
+PMU_EVENT_GROUP(events, ptsc);
+PMU_EVENT_GROUP(events, irperf);
+
+static struct attribute *attrs_therm[] = {
+ &attr_therm.attr.attr,
+ &attr_therm_snap.attr.attr,
+ &attr_therm_unit.attr.attr,
+ NULL,
+};
+
+static struct attribute_group group_therm = {
+ .name = "events",
+ .attrs = attrs_therm,
+};
+
+static struct perf_msr msr[] = {
+ [PERF_MSR_TSC] = { .no_check = true, },
+ [PERF_MSR_APERF] = { MSR_IA32_APERF, &group_aperf, test_aperfmperf, },
+ [PERF_MSR_MPERF] = { MSR_IA32_MPERF, &group_mperf, test_aperfmperf, },
+ [PERF_MSR_PPERF] = { MSR_PPERF, &group_pperf, test_intel, },
+ [PERF_MSR_SMI] = { MSR_SMI_COUNT, &group_smi, test_intel, },
+ [PERF_MSR_PTSC] = { MSR_F15H_PTSC, &group_ptsc, test_ptsc, },
+ [PERF_MSR_IRPERF] = { MSR_F17H_IRPERF, &group_irperf, test_irperf, },
+ [PERF_MSR_THERM] = { MSR_IA32_THERM_STATUS, &group_therm, test_therm_status, },
+};
+
+static struct attribute *events_attrs[] = {
+ &attr_tsc.attr.attr,
+ NULL,
+};
+
+static struct attribute_group events_attr_group = {
+ .name = "events",
+ .attrs = events_attrs,
+};
+
+PMU_FORMAT_ATTR(event, "config:0-63");
+static struct attribute *format_attrs[] = {
+ &format_attr_event.attr,
+ NULL,
+};
+static struct attribute_group format_attr_group = {
+ .name = "format",
+ .attrs = format_attrs,
+};
+
+static const struct attribute_group *attr_groups[] = {
+ &events_attr_group,
+ &format_attr_group,
+ NULL,
+};
+
+static const struct attribute_group *attr_update[] = {
+ &group_aperf,
+ &group_mperf,
+ &group_pperf,
+ &group_smi,
+ &group_ptsc,
+ &group_irperf,
+ &group_therm,
+ NULL,
+};
+
+static int msr_event_init(struct perf_event *event)
+{
+ u64 cfg = event->attr.config;
+
+ if (event->attr.type != event->pmu->type)
+ return -ENOENT;
+
+ /* unsupported modes and filters */
+ if (event->attr.sample_period) /* no sampling */
+ return -EINVAL;
+
+ if (cfg >= PERF_MSR_EVENT_MAX)
+ return -EINVAL;
+
+ cfg = array_index_nospec((unsigned long)cfg, PERF_MSR_EVENT_MAX);
+
+ if (!(msr_mask & (1 << cfg)))
+ return -EINVAL;
+
+ event->hw.idx = -1;
+ event->hw.event_base = msr[cfg].msr;
+ event->hw.config = cfg;
+
+ return 0;
+}
+
+static inline u64 msr_read_counter(struct perf_event *event)
+{
+ u64 now;
+
+ if (event->hw.event_base)
+ rdmsrl(event->hw.event_base, now);
+ else
+ now = rdtsc_ordered();
+
+ return now;
+}
+
+static void msr_event_update(struct perf_event *event)
+{
+ u64 prev, now;
+ s64 delta;
+
+ /* Careful, an NMI might modify the previous event value: */
+again:
+ prev = local64_read(&event->hw.prev_count);
+ now = msr_read_counter(event);
+
+ if (local64_cmpxchg(&event->hw.prev_count, prev, now) != prev)
+ goto again;
+
+ delta = now - prev;
+ if (unlikely(event->hw.event_base == MSR_SMI_COUNT)) {
+ delta = sign_extend64(delta, 31);
+ local64_add(delta, &event->count);
+ } else if (unlikely(event->hw.event_base == MSR_IA32_THERM_STATUS)) {
+ /* If valid, extract digital readout, otherwise set to -1: */
+ now = now & (1ULL << 31) ? (now >> 16) & 0x3f : -1;
+ local64_set(&event->count, now);
+ } else {
+ local64_add(delta, &event->count);
+ }
+}
+
+static void msr_event_start(struct perf_event *event, int flags)
+{
+ u64 now = msr_read_counter(event);
+
+ local64_set(&event->hw.prev_count, now);
+}
+
+static void msr_event_stop(struct perf_event *event, int flags)
+{
+ msr_event_update(event);
+}
+
+static void msr_event_del(struct perf_event *event, int flags)
+{
+ msr_event_stop(event, PERF_EF_UPDATE);
+}
+
+static int msr_event_add(struct perf_event *event, int flags)
+{
+ if (flags & PERF_EF_START)
+ msr_event_start(event, flags);
+
+ return 0;
+}
+
+static struct pmu pmu_msr = {
+ .task_ctx_nr = perf_sw_context,
+ .attr_groups = attr_groups,
+ .event_init = msr_event_init,
+ .add = msr_event_add,
+ .del = msr_event_del,
+ .start = msr_event_start,
+ .stop = msr_event_stop,
+ .read = msr_event_update,
+ .capabilities = PERF_PMU_CAP_NO_INTERRUPT | PERF_PMU_CAP_NO_EXCLUDE,
+ .attr_update = attr_update,
+};
+
+static int __init msr_init(void)
+{
+ if (!boot_cpu_has(X86_FEATURE_TSC)) {
+ pr_cont("no MSR PMU driver.\n");
+ return 0;
+ }
+
+ msr_mask = perf_msr_probe(msr, PERF_MSR_EVENT_MAX, true, NULL);
+
+ perf_pmu_register(&pmu_msr, "msr", -1);
+
+ return 0;
+}
+device_initcall(msr_init);
diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
new file mode 100644
index 000000000000..d6de4487348c
--- /dev/null
+++ b/arch/x86/events/perf_event.h
@@ -0,0 +1,1675 @@
+/*
+ * Performance events x86 architecture header
+ *
+ * Copyright (C) 2008 Thomas Gleixner <tglx@linutronix.de>
+ * Copyright (C) 2008-2009 Red Hat, Inc., Ingo Molnar
+ * Copyright (C) 2009 Jaswinder Singh Rajput
+ * Copyright (C) 2009 Advanced Micro Devices, Inc., Robert Richter
+ * Copyright (C) 2008-2009 Red Hat, Inc., Peter Zijlstra
+ * Copyright (C) 2009 Intel Corporation, <markus.t.metzger@intel.com>
+ * Copyright (C) 2009 Google, Inc., Stephane Eranian
+ *
+ * For licencing details see kernel-base/COPYING
+ */
+
+#include <linux/perf_event.h>
+
+#include <asm/fpu/xstate.h>
+#include <asm/intel_ds.h>
+#include <asm/cpu.h>
+
+/* To enable MSR tracing please use the generic trace points. */
+
+/*
+ * | NHM/WSM | SNB |
+ * register -------------------------------
+ * | HT | no HT | HT | no HT |
+ *-----------------------------------------
+ * offcore | core | core | cpu | core |
+ * lbr_sel | core | core | cpu | core |
+ * ld_lat | cpu | core | cpu | core |
+ *-----------------------------------------
+ *
+ * Given that there is a small number of shared regs,
+ * we can pre-allocate their slot in the per-cpu
+ * per-core reg tables.
+ */
+enum extra_reg_type {
+ EXTRA_REG_NONE = -1, /* not used */
+
+ EXTRA_REG_RSP_0 = 0, /* offcore_response_0 */
+ EXTRA_REG_RSP_1 = 1, /* offcore_response_1 */
+ EXTRA_REG_LBR = 2, /* lbr_select */
+ EXTRA_REG_LDLAT = 3, /* ld_lat_threshold */
+ EXTRA_REG_FE = 4, /* fe_* */
+ EXTRA_REG_SNOOP_0 = 5, /* snoop response 0 */
+ EXTRA_REG_SNOOP_1 = 6, /* snoop response 1 */
+
+ EXTRA_REG_MAX /* number of entries needed */
+};
+
+struct event_constraint {
+ union {
+ unsigned long idxmsk[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
+ u64 idxmsk64;
+ };
+ u64 code;
+ u64 cmask;
+ int weight;
+ int overlap;
+ int flags;
+ unsigned int size;
+};
+
+static inline bool constraint_match(struct event_constraint *c, u64 ecode)
+{
+ return ((ecode & c->cmask) - c->code) <= (u64)c->size;
+}
+
+#define PERF_ARCH(name, val) \
+ PERF_X86_EVENT_##name = val,
+
+/*
+ * struct hw_perf_event.flags flags
+ */
+enum {
+#include "perf_event_flags.h"
+};
+
+#undef PERF_ARCH
+
+#define PERF_ARCH(name, val) \
+ static_assert((PERF_X86_EVENT_##name & PERF_EVENT_FLAG_ARCH) == \
+ PERF_X86_EVENT_##name);
+
+#include "perf_event_flags.h"
+
+#undef PERF_ARCH
+
+static inline bool is_topdown_count(struct perf_event *event)
+{
+ return event->hw.flags & PERF_X86_EVENT_TOPDOWN;
+}
+
+static inline bool is_metric_event(struct perf_event *event)
+{
+ u64 config = event->attr.config;
+
+ return ((config & ARCH_PERFMON_EVENTSEL_EVENT) == 0) &&
+ ((config & INTEL_ARCH_EVENT_MASK) >= INTEL_TD_METRIC_RETIRING) &&
+ ((config & INTEL_ARCH_EVENT_MASK) <= INTEL_TD_METRIC_MAX);
+}
+
+static inline bool is_slots_event(struct perf_event *event)
+{
+ return (event->attr.config & INTEL_ARCH_EVENT_MASK) == INTEL_TD_SLOTS;
+}
+
+static inline bool is_topdown_event(struct perf_event *event)
+{
+ return is_metric_event(event) || is_slots_event(event);
+}
+
+struct amd_nb {
+ int nb_id; /* NorthBridge id */
+ int refcnt; /* reference count */
+ struct perf_event *owners[X86_PMC_IDX_MAX];
+ struct event_constraint event_constraints[X86_PMC_IDX_MAX];
+};
+
+#define PEBS_COUNTER_MASK ((1ULL << MAX_PEBS_EVENTS) - 1)
+#define PEBS_PMI_AFTER_EACH_RECORD BIT_ULL(60)
+#define PEBS_OUTPUT_OFFSET 61
+#define PEBS_OUTPUT_MASK (3ull << PEBS_OUTPUT_OFFSET)
+#define PEBS_OUTPUT_PT (1ull << PEBS_OUTPUT_OFFSET)
+#define PEBS_VIA_PT_MASK (PEBS_OUTPUT_PT | PEBS_PMI_AFTER_EACH_RECORD)
+
+/*
+ * Flags PEBS can handle without an PMI.
+ *
+ * TID can only be handled by flushing at context switch.
+ * REGS_USER can be handled for events limited to ring 3.
+ *
+ */
+#define LARGE_PEBS_FLAGS \
+ (PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_ADDR | \
+ PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_STREAM_ID | \
+ PERF_SAMPLE_DATA_SRC | PERF_SAMPLE_IDENTIFIER | \
+ PERF_SAMPLE_TRANSACTION | PERF_SAMPLE_PHYS_ADDR | \
+ PERF_SAMPLE_REGS_INTR | PERF_SAMPLE_REGS_USER | \
+ PERF_SAMPLE_PERIOD | PERF_SAMPLE_CODE_PAGE_SIZE | \
+ PERF_SAMPLE_WEIGHT_TYPE)
+
+#define PEBS_GP_REGS \
+ ((1ULL << PERF_REG_X86_AX) | \
+ (1ULL << PERF_REG_X86_BX) | \
+ (1ULL << PERF_REG_X86_CX) | \
+ (1ULL << PERF_REG_X86_DX) | \
+ (1ULL << PERF_REG_X86_DI) | \
+ (1ULL << PERF_REG_X86_SI) | \
+ (1ULL << PERF_REG_X86_SP) | \
+ (1ULL << PERF_REG_X86_BP) | \
+ (1ULL << PERF_REG_X86_IP) | \
+ (1ULL << PERF_REG_X86_FLAGS) | \
+ (1ULL << PERF_REG_X86_R8) | \
+ (1ULL << PERF_REG_X86_R9) | \
+ (1ULL << PERF_REG_X86_R10) | \
+ (1ULL << PERF_REG_X86_R11) | \
+ (1ULL << PERF_REG_X86_R12) | \
+ (1ULL << PERF_REG_X86_R13) | \
+ (1ULL << PERF_REG_X86_R14) | \
+ (1ULL << PERF_REG_X86_R15))
+
+/*
+ * Per register state.
+ */
+struct er_account {
+ raw_spinlock_t lock; /* per-core: protect structure */
+ u64 config; /* extra MSR config */
+ u64 reg; /* extra MSR number */
+ atomic_t ref; /* reference count */
+};
+
+/*
+ * Per core/cpu state
+ *
+ * Used to coordinate shared registers between HT threads or
+ * among events on a single PMU.
+ */
+struct intel_shared_regs {
+ struct er_account regs[EXTRA_REG_MAX];
+ int refcnt; /* per-core: #HT threads */
+ unsigned core_id; /* per-core: core id */
+};
+
+enum intel_excl_state_type {
+ INTEL_EXCL_UNUSED = 0, /* counter is unused */
+ INTEL_EXCL_SHARED = 1, /* counter can be used by both threads */
+ INTEL_EXCL_EXCLUSIVE = 2, /* counter can be used by one thread only */
+};
+
+struct intel_excl_states {
+ enum intel_excl_state_type state[X86_PMC_IDX_MAX];
+ bool sched_started; /* true if scheduling has started */
+};
+
+struct intel_excl_cntrs {
+ raw_spinlock_t lock;
+
+ struct intel_excl_states states[2];
+
+ union {
+ u16 has_exclusive[2];
+ u32 exclusive_present;
+ };
+
+ int refcnt; /* per-core: #HT threads */
+ unsigned core_id; /* per-core: core id */
+};
+
+struct x86_perf_task_context;
+#define MAX_LBR_ENTRIES 32
+
+enum {
+ LBR_FORMAT_32 = 0x00,
+ LBR_FORMAT_LIP = 0x01,
+ LBR_FORMAT_EIP = 0x02,
+ LBR_FORMAT_EIP_FLAGS = 0x03,
+ LBR_FORMAT_EIP_FLAGS2 = 0x04,
+ LBR_FORMAT_INFO = 0x05,
+ LBR_FORMAT_TIME = 0x06,
+ LBR_FORMAT_INFO2 = 0x07,
+ LBR_FORMAT_MAX_KNOWN = LBR_FORMAT_INFO2,
+};
+
+enum {
+ X86_PERF_KFREE_SHARED = 0,
+ X86_PERF_KFREE_EXCL = 1,
+ X86_PERF_KFREE_MAX
+};
+
+struct cpu_hw_events {
+ /*
+ * Generic x86 PMC bits
+ */
+ struct perf_event *events[X86_PMC_IDX_MAX]; /* in counter order */
+ unsigned long active_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
+ unsigned long dirty[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
+ int enabled;
+
+ int n_events; /* the # of events in the below arrays */
+ int n_added; /* the # last events in the below arrays;
+ they've never been enabled yet */
+ int n_txn; /* the # last events in the below arrays;
+ added in the current transaction */
+ int n_txn_pair;
+ int n_txn_metric;
+ int assign[X86_PMC_IDX_MAX]; /* event to counter assignment */
+ u64 tags[X86_PMC_IDX_MAX];
+
+ struct perf_event *event_list[X86_PMC_IDX_MAX]; /* in enabled order */
+ struct event_constraint *event_constraint[X86_PMC_IDX_MAX];
+
+ int n_excl; /* the number of exclusive events */
+
+ unsigned int txn_flags;
+ int is_fake;
+
+ /*
+ * Intel DebugStore bits
+ */
+ struct debug_store *ds;
+ void *ds_pebs_vaddr;
+ void *ds_bts_vaddr;
+ u64 pebs_enabled;
+ int n_pebs;
+ int n_large_pebs;
+ int n_pebs_via_pt;
+ int pebs_output;
+
+ /* Current super set of events hardware configuration */
+ u64 pebs_data_cfg;
+ u64 active_pebs_data_cfg;
+ int pebs_record_size;
+
+ /* Intel Fixed counter configuration */
+ u64 fixed_ctrl_val;
+ u64 active_fixed_ctrl_val;
+
+ /*
+ * Intel LBR bits
+ */
+ int lbr_users;
+ int lbr_pebs_users;
+ struct perf_branch_stack lbr_stack;
+ struct perf_branch_entry lbr_entries[MAX_LBR_ENTRIES];
+ union {
+ struct er_account *lbr_sel;
+ struct er_account *lbr_ctl;
+ };
+ u64 br_sel;
+ void *last_task_ctx;
+ int last_log_id;
+ int lbr_select;
+ void *lbr_xsave;
+
+ /*
+ * Intel host/guest exclude bits
+ */
+ u64 intel_ctrl_guest_mask;
+ u64 intel_ctrl_host_mask;
+ struct perf_guest_switch_msr guest_switch_msrs[X86_PMC_IDX_MAX];
+
+ /*
+ * Intel checkpoint mask
+ */
+ u64 intel_cp_status;
+
+ /*
+ * manage shared (per-core, per-cpu) registers
+ * used on Intel NHM/WSM/SNB
+ */
+ struct intel_shared_regs *shared_regs;
+ /*
+ * manage exclusive counter access between hyperthread
+ */
+ struct event_constraint *constraint_list; /* in enable order */
+ struct intel_excl_cntrs *excl_cntrs;
+ int excl_thread_id; /* 0 or 1 */
+
+ /*
+ * SKL TSX_FORCE_ABORT shadow
+ */
+ u64 tfa_shadow;
+
+ /*
+ * Perf Metrics
+ */
+ /* number of accepted metrics events */
+ int n_metric;
+
+ /*
+ * AMD specific bits
+ */
+ struct amd_nb *amd_nb;
+ int brs_active; /* BRS is enabled */
+
+ /* Inverted mask of bits to clear in the perf_ctr ctrl registers */
+ u64 perf_ctr_virt_mask;
+ int n_pair; /* Large increment events */
+
+ void *kfree_on_online[X86_PERF_KFREE_MAX];
+
+ struct pmu *pmu;
+};
+
+#define __EVENT_CONSTRAINT_RANGE(c, e, n, m, w, o, f) { \
+ { .idxmsk64 = (n) }, \
+ .code = (c), \
+ .size = (e) - (c), \
+ .cmask = (m), \
+ .weight = (w), \
+ .overlap = (o), \
+ .flags = f, \
+}
+
+#define __EVENT_CONSTRAINT(c, n, m, w, o, f) \
+ __EVENT_CONSTRAINT_RANGE(c, c, n, m, w, o, f)
+
+#define EVENT_CONSTRAINT(c, n, m) \
+ __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 0, 0)
+
+/*
+ * The constraint_match() function only works for 'simple' event codes
+ * and not for extended (AMD64_EVENTSEL_EVENT) events codes.
+ */
+#define EVENT_CONSTRAINT_RANGE(c, e, n, m) \
+ __EVENT_CONSTRAINT_RANGE(c, e, n, m, HWEIGHT(n), 0, 0)
+
+#define INTEL_EXCLEVT_CONSTRAINT(c, n) \
+ __EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT, HWEIGHT(n),\
+ 0, PERF_X86_EVENT_EXCL)
+
+/*
+ * The overlap flag marks event constraints with overlapping counter
+ * masks. This is the case if the counter mask of such an event is not
+ * a subset of any other counter mask of a constraint with an equal or
+ * higher weight, e.g.:
+ *
+ * c_overlaps = EVENT_CONSTRAINT_OVERLAP(0, 0x09, 0);
+ * c_another1 = EVENT_CONSTRAINT(0, 0x07, 0);
+ * c_another2 = EVENT_CONSTRAINT(0, 0x38, 0);
+ *
+ * The event scheduler may not select the correct counter in the first
+ * cycle because it needs to know which subsequent events will be
+ * scheduled. It may fail to schedule the events then. So we set the
+ * overlap flag for such constraints to give the scheduler a hint which
+ * events to select for counter rescheduling.
+ *
+ * Care must be taken as the rescheduling algorithm is O(n!) which
+ * will increase scheduling cycles for an over-committed system
+ * dramatically. The number of such EVENT_CONSTRAINT_OVERLAP() macros
+ * and its counter masks must be kept at a minimum.
+ */
+#define EVENT_CONSTRAINT_OVERLAP(c, n, m) \
+ __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 1, 0)
+
+/*
+ * Constraint on the Event code.
+ */
+#define INTEL_EVENT_CONSTRAINT(c, n) \
+ EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT)
+
+/*
+ * Constraint on a range of Event codes
+ */
+#define INTEL_EVENT_CONSTRAINT_RANGE(c, e, n) \
+ EVENT_CONSTRAINT_RANGE(c, e, n, ARCH_PERFMON_EVENTSEL_EVENT)
+
+/*
+ * Constraint on the Event code + UMask + fixed-mask
+ *
+ * filter mask to validate fixed counter events.
+ * the following filters disqualify for fixed counters:
+ * - inv
+ * - edge
+ * - cnt-mask
+ * - in_tx
+ * - in_tx_checkpointed
+ * The other filters are supported by fixed counters.
+ * The any-thread option is supported starting with v3.
+ */
+#define FIXED_EVENT_FLAGS (X86_RAW_EVENT_MASK|HSW_IN_TX|HSW_IN_TX_CHECKPOINTED)
+#define FIXED_EVENT_CONSTRAINT(c, n) \
+ EVENT_CONSTRAINT(c, (1ULL << (32+n)), FIXED_EVENT_FLAGS)
+
+/*
+ * The special metric counters do not actually exist. They are calculated from
+ * the combination of the FxCtr3 + MSR_PERF_METRICS.
+ *
+ * The special metric counters are mapped to a dummy offset for the scheduler.
+ * The sharing between multiple users of the same metric without multiplexing
+ * is not allowed, even though the hardware supports that in principle.
+ */
+
+#define METRIC_EVENT_CONSTRAINT(c, n) \
+ EVENT_CONSTRAINT(c, (1ULL << (INTEL_PMC_IDX_METRIC_BASE + n)), \
+ INTEL_ARCH_EVENT_MASK)
+
+/*
+ * Constraint on the Event code + UMask
+ */
+#define INTEL_UEVENT_CONSTRAINT(c, n) \
+ EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK)
+
+/* Constraint on specific umask bit only + event */
+#define INTEL_UBIT_EVENT_CONSTRAINT(c, n) \
+ EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT|(c))
+
+/* Like UEVENT_CONSTRAINT, but match flags too */
+#define INTEL_FLAGS_UEVENT_CONSTRAINT(c, n) \
+ EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS)
+
+#define INTEL_EXCLUEVT_CONSTRAINT(c, n) \
+ __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_EXCL)
+
+#define INTEL_PLD_CONSTRAINT(c, n) \
+ __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LDLAT)
+
+#define INTEL_PSD_CONSTRAINT(c, n) \
+ __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_STLAT)
+
+#define INTEL_PST_CONSTRAINT(c, n) \
+ __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST)
+
+#define INTEL_HYBRID_LAT_CONSTRAINT(c, n) \
+ __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LAT_HYBRID)
+
+/* Event constraint, but match on all event flags too. */
+#define INTEL_FLAGS_EVENT_CONSTRAINT(c, n) \
+ EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS)
+
+#define INTEL_FLAGS_EVENT_CONSTRAINT_RANGE(c, e, n) \
+ EVENT_CONSTRAINT_RANGE(c, e, n, ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS)
+
+/* Check only flags, but allow all event/umask */
+#define INTEL_ALL_EVENT_CONSTRAINT(code, n) \
+ EVENT_CONSTRAINT(code, n, X86_ALL_EVENT_FLAGS)
+
+/* Check flags and event code, and set the HSW store flag */
+#define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_ST(code, n) \
+ __EVENT_CONSTRAINT(code, n, \
+ ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST_HSW)
+
+/* Check flags and event code, and set the HSW load flag */
+#define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD(code, n) \
+ __EVENT_CONSTRAINT(code, n, \
+ ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW)
+
+#define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD_RANGE(code, end, n) \
+ __EVENT_CONSTRAINT_RANGE(code, end, n, \
+ ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW)
+
+#define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_XLD(code, n) \
+ __EVENT_CONSTRAINT(code, n, \
+ ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, \
+ PERF_X86_EVENT_PEBS_LD_HSW|PERF_X86_EVENT_EXCL)
+
+/* Check flags and event code/umask, and set the HSW store flag */
+#define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(code, n) \
+ __EVENT_CONSTRAINT(code, n, \
+ INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST_HSW)
+
+#define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XST(code, n) \
+ __EVENT_CONSTRAINT(code, n, \
+ INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, \
+ PERF_X86_EVENT_PEBS_ST_HSW|PERF_X86_EVENT_EXCL)
+
+/* Check flags and event code/umask, and set the HSW load flag */
+#define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(code, n) \
+ __EVENT_CONSTRAINT(code, n, \
+ INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW)
+
+#define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XLD(code, n) \
+ __EVENT_CONSTRAINT(code, n, \
+ INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, \
+ PERF_X86_EVENT_PEBS_LD_HSW|PERF_X86_EVENT_EXCL)
+
+/* Check flags and event code/umask, and set the HSW N/A flag */
+#define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_NA(code, n) \
+ __EVENT_CONSTRAINT(code, n, \
+ INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
+ HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_NA_HSW)
+
+
+/*
+ * We define the end marker as having a weight of -1
+ * to enable blacklisting of events using a counter bitmask
+ * of zero and thus a weight of zero.
+ * The end marker has a weight that cannot possibly be
+ * obtained from counting the bits in the bitmask.
+ */
+#define EVENT_CONSTRAINT_END { .weight = -1 }
+
+/*
+ * Check for end marker with weight == -1
+ */
+#define for_each_event_constraint(e, c) \
+ for ((e) = (c); (e)->weight != -1; (e)++)
+
+/*
+ * Extra registers for specific events.
+ *
+ * Some events need large masks and require external MSRs.
+ * Those extra MSRs end up being shared for all events on
+ * a PMU and sometimes between PMU of sibling HT threads.
+ * In either case, the kernel needs to handle conflicting
+ * accesses to those extra, shared, regs. The data structure
+ * to manage those registers is stored in cpu_hw_event.
+ */
+struct extra_reg {
+ unsigned int event;
+ unsigned int msr;
+ u64 config_mask;
+ u64 valid_mask;
+ int idx; /* per_xxx->regs[] reg index */
+ bool extra_msr_access;
+};
+
+#define EVENT_EXTRA_REG(e, ms, m, vm, i) { \
+ .event = (e), \
+ .msr = (ms), \
+ .config_mask = (m), \
+ .valid_mask = (vm), \
+ .idx = EXTRA_REG_##i, \
+ .extra_msr_access = true, \
+ }
+
+#define INTEL_EVENT_EXTRA_REG(event, msr, vm, idx) \
+ EVENT_EXTRA_REG(event, msr, ARCH_PERFMON_EVENTSEL_EVENT, vm, idx)
+
+#define INTEL_UEVENT_EXTRA_REG(event, msr, vm, idx) \
+ EVENT_EXTRA_REG(event, msr, ARCH_PERFMON_EVENTSEL_EVENT | \
+ ARCH_PERFMON_EVENTSEL_UMASK, vm, idx)
+
+#define INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(c) \
+ INTEL_UEVENT_EXTRA_REG(c, \
+ MSR_PEBS_LD_LAT_THRESHOLD, \
+ 0xffff, \
+ LDLAT)
+
+#define EVENT_EXTRA_END EVENT_EXTRA_REG(0, 0, 0, 0, RSP_0)
+
+union perf_capabilities {
+ struct {
+ u64 lbr_format:6;
+ u64 pebs_trap:1;
+ u64 pebs_arch_reg:1;
+ u64 pebs_format:4;
+ u64 smm_freeze:1;
+ /*
+ * PMU supports separate counter range for writing
+ * values > 32bit.
+ */
+ u64 full_width_write:1;
+ u64 pebs_baseline:1;
+ u64 perf_metrics:1;
+ u64 pebs_output_pt_available:1;
+ u64 pebs_timing_info:1;
+ u64 anythread_deprecated:1;
+ };
+ u64 capabilities;
+};
+
+struct x86_pmu_quirk {
+ struct x86_pmu_quirk *next;
+ void (*func)(void);
+};
+
+union x86_pmu_config {
+ struct {
+ u64 event:8,
+ umask:8,
+ usr:1,
+ os:1,
+ edge:1,
+ pc:1,
+ interrupt:1,
+ __reserved1:1,
+ en:1,
+ inv:1,
+ cmask:8,
+ event2:4,
+ __reserved2:4,
+ go:1,
+ ho:1;
+ } bits;
+ u64 value;
+};
+
+#define X86_CONFIG(args...) ((union x86_pmu_config){.bits = {args}}).value
+
+enum {
+ x86_lbr_exclusive_lbr,
+ x86_lbr_exclusive_bts,
+ x86_lbr_exclusive_pt,
+ x86_lbr_exclusive_max,
+};
+
+#define PERF_PEBS_DATA_SOURCE_MAX 0x10
+#define PERF_PEBS_DATA_SOURCE_MASK (PERF_PEBS_DATA_SOURCE_MAX - 1)
+
+struct x86_hybrid_pmu {
+ struct pmu pmu;
+ const char *name;
+ u8 cpu_type;
+ cpumask_t supported_cpus;
+ union perf_capabilities intel_cap;
+ u64 intel_ctrl;
+ int max_pebs_events;
+ int num_counters;
+ int num_counters_fixed;
+ struct event_constraint unconstrained;
+
+ u64 hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX];
+ u64 hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX];
+ struct event_constraint *event_constraints;
+ struct event_constraint *pebs_constraints;
+ struct extra_reg *extra_regs;
+
+ unsigned int late_ack :1,
+ mid_ack :1,
+ enabled_ack :1;
+
+ u64 pebs_data_source[PERF_PEBS_DATA_SOURCE_MAX];
+};
+
+static __always_inline struct x86_hybrid_pmu *hybrid_pmu(struct pmu *pmu)
+{
+ return container_of(pmu, struct x86_hybrid_pmu, pmu);
+}
+
+extern struct static_key_false perf_is_hybrid;
+#define is_hybrid() static_branch_unlikely(&perf_is_hybrid)
+
+#define hybrid(_pmu, _field) \
+(*({ \
+ typeof(&x86_pmu._field) __Fp = &x86_pmu._field; \
+ \
+ if (is_hybrid() && (_pmu)) \
+ __Fp = &hybrid_pmu(_pmu)->_field; \
+ \
+ __Fp; \
+}))
+
+#define hybrid_var(_pmu, _var) \
+(*({ \
+ typeof(&_var) __Fp = &_var; \
+ \
+ if (is_hybrid() && (_pmu)) \
+ __Fp = &hybrid_pmu(_pmu)->_var; \
+ \
+ __Fp; \
+}))
+
+#define hybrid_bit(_pmu, _field) \
+({ \
+ bool __Fp = x86_pmu._field; \
+ \
+ if (is_hybrid() && (_pmu)) \
+ __Fp = hybrid_pmu(_pmu)->_field; \
+ \
+ __Fp; \
+})
+
+enum hybrid_pmu_type {
+ hybrid_big = 0x40,
+ hybrid_small = 0x20,
+
+ hybrid_big_small = hybrid_big | hybrid_small,
+};
+
+#define X86_HYBRID_PMU_ATOM_IDX 0
+#define X86_HYBRID_PMU_CORE_IDX 1
+
+#define X86_HYBRID_NUM_PMUS 2
+
+/*
+ * struct x86_pmu - generic x86 pmu
+ */
+struct x86_pmu {
+ /*
+ * Generic x86 PMC bits
+ */
+ const char *name;
+ int version;
+ int (*handle_irq)(struct pt_regs *);
+ void (*disable_all)(void);
+ void (*enable_all)(int added);
+ void (*enable)(struct perf_event *);
+ void (*disable)(struct perf_event *);
+ void (*assign)(struct perf_event *event, int idx);
+ void (*add)(struct perf_event *);
+ void (*del)(struct perf_event *);
+ void (*read)(struct perf_event *event);
+ int (*set_period)(struct perf_event *event);
+ u64 (*update)(struct perf_event *event);
+ int (*hw_config)(struct perf_event *event);
+ int (*schedule_events)(struct cpu_hw_events *cpuc, int n, int *assign);
+ unsigned eventsel;
+ unsigned perfctr;
+ int (*addr_offset)(int index, bool eventsel);
+ int (*rdpmc_index)(int index);
+ u64 (*event_map)(int);
+ int max_events;
+ int num_counters;
+ int num_counters_fixed;
+ int cntval_bits;
+ u64 cntval_mask;
+ union {
+ unsigned long events_maskl;
+ unsigned long events_mask[BITS_TO_LONGS(ARCH_PERFMON_EVENTS_COUNT)];
+ };
+ int events_mask_len;
+ int apic;
+ u64 max_period;
+ struct event_constraint *
+ (*get_event_constraints)(struct cpu_hw_events *cpuc,
+ int idx,
+ struct perf_event *event);
+
+ void (*put_event_constraints)(struct cpu_hw_events *cpuc,
+ struct perf_event *event);
+
+ void (*start_scheduling)(struct cpu_hw_events *cpuc);
+
+ void (*commit_scheduling)(struct cpu_hw_events *cpuc, int idx, int cntr);
+
+ void (*stop_scheduling)(struct cpu_hw_events *cpuc);
+
+ struct event_constraint *event_constraints;
+ struct x86_pmu_quirk *quirks;
+ void (*limit_period)(struct perf_event *event, s64 *l);
+
+ /* PMI handler bits */
+ unsigned int late_ack :1,
+ mid_ack :1,
+ enabled_ack :1;
+ /*
+ * sysfs attrs
+ */
+ int attr_rdpmc_broken;
+ int attr_rdpmc;
+ struct attribute **format_attrs;
+
+ ssize_t (*events_sysfs_show)(char *page, u64 config);
+ const struct attribute_group **attr_update;
+
+ unsigned long attr_freeze_on_smi;
+
+ /*
+ * CPU Hotplug hooks
+ */
+ int (*cpu_prepare)(int cpu);
+ void (*cpu_starting)(int cpu);
+ void (*cpu_dying)(int cpu);
+ void (*cpu_dead)(int cpu);
+
+ void (*check_microcode)(void);
+ void (*sched_task)(struct perf_event_pmu_context *pmu_ctx,
+ bool sched_in);
+
+ /*
+ * Intel Arch Perfmon v2+
+ */
+ u64 intel_ctrl;
+ union perf_capabilities intel_cap;
+
+ /*
+ * Intel DebugStore bits
+ */
+ unsigned int bts :1,
+ bts_active :1,
+ pebs :1,
+ pebs_active :1,
+ pebs_broken :1,
+ pebs_prec_dist :1,
+ pebs_no_tlb :1,
+ pebs_no_isolation :1,
+ pebs_block :1,
+ pebs_ept :1;
+ int pebs_record_size;
+ int pebs_buffer_size;
+ int max_pebs_events;
+ void (*drain_pebs)(struct pt_regs *regs, struct perf_sample_data *data);
+ struct event_constraint *pebs_constraints;
+ void (*pebs_aliases)(struct perf_event *event);
+ u64 (*pebs_latency_data)(struct perf_event *event, u64 status);
+ unsigned long large_pebs_flags;
+ u64 rtm_abort_event;
+ u64 pebs_capable;
+
+ /*
+ * Intel LBR
+ */
+ unsigned int lbr_tos, lbr_from, lbr_to,
+ lbr_info, lbr_nr; /* LBR base regs and size */
+ union {
+ u64 lbr_sel_mask; /* LBR_SELECT valid bits */
+ u64 lbr_ctl_mask; /* LBR_CTL valid bits */
+ };
+ union {
+ const int *lbr_sel_map; /* lbr_select mappings */
+ int *lbr_ctl_map; /* LBR_CTL mappings */
+ };
+ bool lbr_double_abort; /* duplicated lbr aborts */
+ bool lbr_pt_coexist; /* (LBR|BTS) may coexist with PT */
+
+ unsigned int lbr_has_info:1;
+ unsigned int lbr_has_tsx:1;
+ unsigned int lbr_from_flags:1;
+ unsigned int lbr_to_cycles:1;
+
+ /*
+ * Intel Architectural LBR CPUID Enumeration
+ */
+ unsigned int lbr_depth_mask:8;
+ unsigned int lbr_deep_c_reset:1;
+ unsigned int lbr_lip:1;
+ unsigned int lbr_cpl:1;
+ unsigned int lbr_filter:1;
+ unsigned int lbr_call_stack:1;
+ unsigned int lbr_mispred:1;
+ unsigned int lbr_timed_lbr:1;
+ unsigned int lbr_br_type:1;
+
+ void (*lbr_reset)(void);
+ void (*lbr_read)(struct cpu_hw_events *cpuc);
+ void (*lbr_save)(void *ctx);
+ void (*lbr_restore)(void *ctx);
+
+ /*
+ * Intel PT/LBR/BTS are exclusive
+ */
+ atomic_t lbr_exclusive[x86_lbr_exclusive_max];
+
+ /*
+ * Intel perf metrics
+ */
+ int num_topdown_events;
+
+ /*
+ * perf task context (i.e. struct perf_event_pmu_context::task_ctx_data)
+ * switch helper to bridge calls from perf/core to perf/x86.
+ * See struct pmu::swap_task_ctx() usage for examples;
+ */
+ void (*swap_task_ctx)(struct perf_event_pmu_context *prev_epc,
+ struct perf_event_pmu_context *next_epc);
+
+ /*
+ * AMD bits
+ */
+ unsigned int amd_nb_constraints : 1;
+ u64 perf_ctr_pair_en;
+
+ /*
+ * Extra registers for events
+ */
+ struct extra_reg *extra_regs;
+ unsigned int flags;
+
+ /*
+ * Intel host/guest support (KVM)
+ */
+ struct perf_guest_switch_msr *(*guest_get_msrs)(int *nr, void *data);
+
+ /*
+ * Check period value for PERF_EVENT_IOC_PERIOD ioctl.
+ */
+ int (*check_period) (struct perf_event *event, u64 period);
+
+ int (*aux_output_match) (struct perf_event *event);
+
+ void (*filter)(struct pmu *pmu, int cpu, bool *ret);
+ /*
+ * Hybrid support
+ *
+ * Most PMU capabilities are the same among different hybrid PMUs.
+ * The global x86_pmu saves the architecture capabilities, which
+ * are available for all PMUs. The hybrid_pmu only includes the
+ * unique capabilities.
+ */
+ int num_hybrid_pmus;
+ struct x86_hybrid_pmu *hybrid_pmu;
+ u8 (*get_hybrid_cpu_type) (void);
+};
+
+struct x86_perf_task_context_opt {
+ int lbr_callstack_users;
+ int lbr_stack_state;
+ int log_id;
+};
+
+struct x86_perf_task_context {
+ u64 lbr_sel;
+ int tos;
+ int valid_lbrs;
+ struct x86_perf_task_context_opt opt;
+ struct lbr_entry lbr[MAX_LBR_ENTRIES];
+};
+
+struct x86_perf_task_context_arch_lbr {
+ struct x86_perf_task_context_opt opt;
+ struct lbr_entry entries[];
+};
+
+/*
+ * Add padding to guarantee the 64-byte alignment of the state buffer.
+ *
+ * The structure is dynamically allocated. The size of the LBR state may vary
+ * based on the number of LBR registers.
+ *
+ * Do not put anything after the LBR state.
+ */
+struct x86_perf_task_context_arch_lbr_xsave {
+ struct x86_perf_task_context_opt opt;
+
+ union {
+ struct xregs_state xsave;
+ struct {
+ struct fxregs_state i387;
+ struct xstate_header header;
+ struct arch_lbr_state lbr;
+ } __attribute__ ((packed, aligned (XSAVE_ALIGNMENT)));
+ };
+};
+
+#define x86_add_quirk(func_) \
+do { \
+ static struct x86_pmu_quirk __quirk __initdata = { \
+ .func = func_, \
+ }; \
+ __quirk.next = x86_pmu.quirks; \
+ x86_pmu.quirks = &__quirk; \
+} while (0)
+
+/*
+ * x86_pmu flags
+ */
+#define PMU_FL_NO_HT_SHARING 0x1 /* no hyper-threading resource sharing */
+#define PMU_FL_HAS_RSP_1 0x2 /* has 2 equivalent offcore_rsp regs */
+#define PMU_FL_EXCL_CNTRS 0x4 /* has exclusive counter requirements */
+#define PMU_FL_EXCL_ENABLED 0x8 /* exclusive counter active */
+#define PMU_FL_PEBS_ALL 0x10 /* all events are valid PEBS events */
+#define PMU_FL_TFA 0x20 /* deal with TSX force abort */
+#define PMU_FL_PAIR 0x40 /* merge counters for large incr. events */
+#define PMU_FL_INSTR_LATENCY 0x80 /* Support Instruction Latency in PEBS Memory Info Record */
+#define PMU_FL_MEM_LOADS_AUX 0x100 /* Require an auxiliary event for the complete memory info */
+#define PMU_FL_RETIRE_LATENCY 0x200 /* Support Retire Latency in PEBS */
+
+#define EVENT_VAR(_id) event_attr_##_id
+#define EVENT_PTR(_id) &event_attr_##_id.attr.attr
+
+#define EVENT_ATTR(_name, _id) \
+static struct perf_pmu_events_attr EVENT_VAR(_id) = { \
+ .attr = __ATTR(_name, 0444, events_sysfs_show, NULL), \
+ .id = PERF_COUNT_HW_##_id, \
+ .event_str = NULL, \
+};
+
+#define EVENT_ATTR_STR(_name, v, str) \
+static struct perf_pmu_events_attr event_attr_##v = { \
+ .attr = __ATTR(_name, 0444, events_sysfs_show, NULL), \
+ .id = 0, \
+ .event_str = str, \
+};
+
+#define EVENT_ATTR_STR_HT(_name, v, noht, ht) \
+static struct perf_pmu_events_ht_attr event_attr_##v = { \
+ .attr = __ATTR(_name, 0444, events_ht_sysfs_show, NULL),\
+ .id = 0, \
+ .event_str_noht = noht, \
+ .event_str_ht = ht, \
+}
+
+#define EVENT_ATTR_STR_HYBRID(_name, v, str, _pmu) \
+static struct perf_pmu_events_hybrid_attr event_attr_##v = { \
+ .attr = __ATTR(_name, 0444, events_hybrid_sysfs_show, NULL),\
+ .id = 0, \
+ .event_str = str, \
+ .pmu_type = _pmu, \
+}
+
+#define FORMAT_HYBRID_PTR(_id) (&format_attr_hybrid_##_id.attr.attr)
+
+#define FORMAT_ATTR_HYBRID(_name, _pmu) \
+static struct perf_pmu_format_hybrid_attr format_attr_hybrid_##_name = {\
+ .attr = __ATTR_RO(_name), \
+ .pmu_type = _pmu, \
+}
+
+struct pmu *x86_get_pmu(unsigned int cpu);
+extern struct x86_pmu x86_pmu __read_mostly;
+
+DECLARE_STATIC_CALL(x86_pmu_set_period, *x86_pmu.set_period);
+DECLARE_STATIC_CALL(x86_pmu_update, *x86_pmu.update);
+
+static __always_inline struct x86_perf_task_context_opt *task_context_opt(void *ctx)
+{
+ if (static_cpu_has(X86_FEATURE_ARCH_LBR))
+ return &((struct x86_perf_task_context_arch_lbr *)ctx)->opt;
+
+ return &((struct x86_perf_task_context *)ctx)->opt;
+}
+
+static inline bool x86_pmu_has_lbr_callstack(void)
+{
+ return x86_pmu.lbr_sel_map &&
+ x86_pmu.lbr_sel_map[PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT] > 0;
+}
+
+DECLARE_PER_CPU(struct cpu_hw_events, cpu_hw_events);
+DECLARE_PER_CPU(u64 [X86_PMC_IDX_MAX], pmc_prev_left);
+
+int x86_perf_event_set_period(struct perf_event *event);
+
+/*
+ * Generalized hw caching related hw_event table, filled
+ * in on a per model basis. A value of 0 means
+ * 'not supported', -1 means 'hw_event makes no sense on
+ * this CPU', any other value means the raw hw_event
+ * ID.
+ */
+
+#define C(x) PERF_COUNT_HW_CACHE_##x
+
+extern u64 __read_mostly hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX];
+extern u64 __read_mostly hw_cache_extra_regs
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX];
+
+u64 x86_perf_event_update(struct perf_event *event);
+
+static inline unsigned int x86_pmu_config_addr(int index)
+{
+ return x86_pmu.eventsel + (x86_pmu.addr_offset ?
+ x86_pmu.addr_offset(index, true) : index);
+}
+
+static inline unsigned int x86_pmu_event_addr(int index)
+{
+ return x86_pmu.perfctr + (x86_pmu.addr_offset ?
+ x86_pmu.addr_offset(index, false) : index);
+}
+
+static inline int x86_pmu_rdpmc_index(int index)
+{
+ return x86_pmu.rdpmc_index ? x86_pmu.rdpmc_index(index) : index;
+}
+
+bool check_hw_exists(struct pmu *pmu, int num_counters,
+ int num_counters_fixed);
+
+int x86_add_exclusive(unsigned int what);
+
+void x86_del_exclusive(unsigned int what);
+
+int x86_reserve_hardware(void);
+
+void x86_release_hardware(void);
+
+int x86_pmu_max_precise(void);
+
+void hw_perf_lbr_event_destroy(struct perf_event *event);
+
+int x86_setup_perfctr(struct perf_event *event);
+
+int x86_pmu_hw_config(struct perf_event *event);
+
+void x86_pmu_disable_all(void);
+
+static inline bool has_amd_brs(struct hw_perf_event *hwc)
+{
+ return hwc->flags & PERF_X86_EVENT_AMD_BRS;
+}
+
+static inline bool is_counter_pair(struct hw_perf_event *hwc)
+{
+ return hwc->flags & PERF_X86_EVENT_PAIR;
+}
+
+static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc,
+ u64 enable_mask)
+{
+ u64 disable_mask = __this_cpu_read(cpu_hw_events.perf_ctr_virt_mask);
+
+ if (hwc->extra_reg.reg)
+ wrmsrl(hwc->extra_reg.reg, hwc->extra_reg.config);
+
+ /*
+ * Add enabled Merge event on next counter
+ * if large increment event being enabled on this counter
+ */
+ if (is_counter_pair(hwc))
+ wrmsrl(x86_pmu_config_addr(hwc->idx + 1), x86_pmu.perf_ctr_pair_en);
+
+ wrmsrl(hwc->config_base, (hwc->config | enable_mask) & ~disable_mask);
+}
+
+void x86_pmu_enable_all(int added);
+
+int perf_assign_events(struct event_constraint **constraints, int n,
+ int wmin, int wmax, int gpmax, int *assign);
+int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign);
+
+void x86_pmu_stop(struct perf_event *event, int flags);
+
+static inline void x86_pmu_disable_event(struct perf_event *event)
+{
+ u64 disable_mask = __this_cpu_read(cpu_hw_events.perf_ctr_virt_mask);
+ struct hw_perf_event *hwc = &event->hw;
+
+ wrmsrl(hwc->config_base, hwc->config & ~disable_mask);
+
+ if (is_counter_pair(hwc))
+ wrmsrl(x86_pmu_config_addr(hwc->idx + 1), 0);
+}
+
+void x86_pmu_enable_event(struct perf_event *event);
+
+int x86_pmu_handle_irq(struct pt_regs *regs);
+
+void x86_pmu_show_pmu_cap(int num_counters, int num_counters_fixed,
+ u64 intel_ctrl);
+
+extern struct event_constraint emptyconstraint;
+
+extern struct event_constraint unconstrained;
+
+static inline bool kernel_ip(unsigned long ip)
+{
+#ifdef CONFIG_X86_32
+ return ip > PAGE_OFFSET;
+#else
+ return (long)ip < 0;
+#endif
+}
+
+/*
+ * Not all PMUs provide the right context information to place the reported IP
+ * into full context. Specifically segment registers are typically not
+ * supplied.
+ *
+ * Assuming the address is a linear address (it is for IBS), we fake the CS and
+ * vm86 mode using the known zero-based code segment and 'fix up' the registers
+ * to reflect this.
+ *
+ * Intel PEBS/LBR appear to typically provide the effective address, nothing
+ * much we can do about that but pray and treat it like a linear address.
+ */
+static inline void set_linear_ip(struct pt_regs *regs, unsigned long ip)
+{
+ regs->cs = kernel_ip(ip) ? __KERNEL_CS : __USER_CS;
+ if (regs->flags & X86_VM_MASK)
+ regs->flags ^= (PERF_EFLAGS_VM | X86_VM_MASK);
+ regs->ip = ip;
+}
+
+/*
+ * x86control flow change classification
+ * x86control flow changes include branches, interrupts, traps, faults
+ */
+enum {
+ X86_BR_NONE = 0, /* unknown */
+
+ X86_BR_USER = 1 << 0, /* branch target is user */
+ X86_BR_KERNEL = 1 << 1, /* branch target is kernel */
+
+ X86_BR_CALL = 1 << 2, /* call */
+ X86_BR_RET = 1 << 3, /* return */
+ X86_BR_SYSCALL = 1 << 4, /* syscall */
+ X86_BR_SYSRET = 1 << 5, /* syscall return */
+ X86_BR_INT = 1 << 6, /* sw interrupt */
+ X86_BR_IRET = 1 << 7, /* return from interrupt */
+ X86_BR_JCC = 1 << 8, /* conditional */
+ X86_BR_JMP = 1 << 9, /* jump */
+ X86_BR_IRQ = 1 << 10,/* hw interrupt or trap or fault */
+ X86_BR_IND_CALL = 1 << 11,/* indirect calls */
+ X86_BR_ABORT = 1 << 12,/* transaction abort */
+ X86_BR_IN_TX = 1 << 13,/* in transaction */
+ X86_BR_NO_TX = 1 << 14,/* not in transaction */
+ X86_BR_ZERO_CALL = 1 << 15,/* zero length call */
+ X86_BR_CALL_STACK = 1 << 16,/* call stack */
+ X86_BR_IND_JMP = 1 << 17,/* indirect jump */
+
+ X86_BR_TYPE_SAVE = 1 << 18,/* indicate to save branch type */
+
+};
+
+#define X86_BR_PLM (X86_BR_USER | X86_BR_KERNEL)
+#define X86_BR_ANYTX (X86_BR_NO_TX | X86_BR_IN_TX)
+
+#define X86_BR_ANY \
+ (X86_BR_CALL |\
+ X86_BR_RET |\
+ X86_BR_SYSCALL |\
+ X86_BR_SYSRET |\
+ X86_BR_INT |\
+ X86_BR_IRET |\
+ X86_BR_JCC |\
+ X86_BR_JMP |\
+ X86_BR_IRQ |\
+ X86_BR_ABORT |\
+ X86_BR_IND_CALL |\
+ X86_BR_IND_JMP |\
+ X86_BR_ZERO_CALL)
+
+#define X86_BR_ALL (X86_BR_PLM | X86_BR_ANY)
+
+#define X86_BR_ANY_CALL \
+ (X86_BR_CALL |\
+ X86_BR_IND_CALL |\
+ X86_BR_ZERO_CALL |\
+ X86_BR_SYSCALL |\
+ X86_BR_IRQ |\
+ X86_BR_INT)
+
+int common_branch_type(int type);
+int branch_type(unsigned long from, unsigned long to, int abort);
+int branch_type_fused(unsigned long from, unsigned long to, int abort,
+ int *offset);
+
+ssize_t x86_event_sysfs_show(char *page, u64 config, u64 event);
+ssize_t intel_event_sysfs_show(char *page, u64 config);
+
+ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr,
+ char *page);
+ssize_t events_ht_sysfs_show(struct device *dev, struct device_attribute *attr,
+ char *page);
+ssize_t events_hybrid_sysfs_show(struct device *dev,
+ struct device_attribute *attr,
+ char *page);
+
+static inline bool fixed_counter_disabled(int i, struct pmu *pmu)
+{
+ u64 intel_ctrl = hybrid(pmu, intel_ctrl);
+
+ return !(intel_ctrl >> (i + INTEL_PMC_IDX_FIXED));
+}
+
+#ifdef CONFIG_CPU_SUP_AMD
+
+int amd_pmu_init(void);
+
+int amd_pmu_lbr_init(void);
+void amd_pmu_lbr_reset(void);
+void amd_pmu_lbr_read(void);
+void amd_pmu_lbr_add(struct perf_event *event);
+void amd_pmu_lbr_del(struct perf_event *event);
+void amd_pmu_lbr_sched_task(struct perf_event_pmu_context *pmu_ctx, bool sched_in);
+void amd_pmu_lbr_enable_all(void);
+void amd_pmu_lbr_disable_all(void);
+int amd_pmu_lbr_hw_config(struct perf_event *event);
+
+#ifdef CONFIG_PERF_EVENTS_AMD_BRS
+
+#define AMD_FAM19H_BRS_EVENT 0xc4 /* RETIRED_TAKEN_BRANCH_INSTRUCTIONS */
+
+int amd_brs_init(void);
+void amd_brs_disable(void);
+void amd_brs_enable(void);
+void amd_brs_enable_all(void);
+void amd_brs_disable_all(void);
+void amd_brs_drain(void);
+void amd_brs_lopwr_init(void);
+int amd_brs_hw_config(struct perf_event *event);
+void amd_brs_reset(void);
+
+static inline void amd_pmu_brs_add(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ perf_sched_cb_inc(event->pmu);
+ cpuc->lbr_users++;
+ /*
+ * No need to reset BRS because it is reset
+ * on brs_enable() and it is saturating
+ */
+}
+
+static inline void amd_pmu_brs_del(struct perf_event *event)
+{
+ struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+
+ cpuc->lbr_users--;
+ WARN_ON_ONCE(cpuc->lbr_users < 0);
+
+ perf_sched_cb_dec(event->pmu);
+}
+
+void amd_pmu_brs_sched_task(struct perf_event_pmu_context *pmu_ctx, bool sched_in);
+#else
+static inline int amd_brs_init(void)
+{
+ return 0;
+}
+static inline void amd_brs_disable(void) {}
+static inline void amd_brs_enable(void) {}
+static inline void amd_brs_drain(void) {}
+static inline void amd_brs_lopwr_init(void) {}
+static inline void amd_brs_disable_all(void) {}
+static inline int amd_brs_hw_config(struct perf_event *event)
+{
+ return 0;
+}
+static inline void amd_brs_reset(void) {}
+
+static inline void amd_pmu_brs_add(struct perf_event *event)
+{
+}
+
+static inline void amd_pmu_brs_del(struct perf_event *event)
+{
+}
+
+static inline void amd_pmu_brs_sched_task(struct perf_event_pmu_context *pmu_ctx, bool sched_in)
+{
+}
+
+static inline void amd_brs_enable_all(void)
+{
+}
+
+#endif
+
+#else /* CONFIG_CPU_SUP_AMD */
+
+static inline int amd_pmu_init(void)
+{
+ return 0;
+}
+
+static inline int amd_brs_init(void)
+{
+ return -EOPNOTSUPP;
+}
+
+static inline void amd_brs_drain(void)
+{
+}
+
+static inline void amd_brs_enable_all(void)
+{
+}
+
+static inline void amd_brs_disable_all(void)
+{
+}
+#endif /* CONFIG_CPU_SUP_AMD */
+
+static inline int is_pebs_pt(struct perf_event *event)
+{
+ return !!(event->hw.flags & PERF_X86_EVENT_PEBS_VIA_PT);
+}
+
+#ifdef CONFIG_CPU_SUP_INTEL
+
+static inline bool intel_pmu_has_bts_period(struct perf_event *event, u64 period)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ unsigned int hw_event, bts_event;
+
+ if (event->attr.freq)
+ return false;
+
+ hw_event = hwc->config & INTEL_ARCH_EVENT_MASK;
+ bts_event = x86_pmu.event_map(PERF_COUNT_HW_BRANCH_INSTRUCTIONS);
+
+ return hw_event == bts_event && period == 1;
+}
+
+static inline bool intel_pmu_has_bts(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ return intel_pmu_has_bts_period(event, hwc->sample_period);
+}
+
+static __always_inline void __intel_pmu_pebs_disable_all(void)
+{
+ wrmsrl(MSR_IA32_PEBS_ENABLE, 0);
+}
+
+static __always_inline void __intel_pmu_arch_lbr_disable(void)
+{
+ wrmsrl(MSR_ARCH_LBR_CTL, 0);
+}
+
+static __always_inline void __intel_pmu_lbr_disable(void)
+{
+ u64 debugctl;
+
+ rdmsrl(MSR_IA32_DEBUGCTLMSR, debugctl);
+ debugctl &= ~(DEBUGCTLMSR_LBR | DEBUGCTLMSR_FREEZE_LBRS_ON_PMI);
+ wrmsrl(MSR_IA32_DEBUGCTLMSR, debugctl);
+}
+
+int intel_pmu_save_and_restart(struct perf_event *event);
+
+struct event_constraint *
+x86_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event);
+
+extern int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu);
+extern void intel_cpuc_finish(struct cpu_hw_events *cpuc);
+
+int intel_pmu_init(void);
+
+void init_debug_store_on_cpu(int cpu);
+
+void fini_debug_store_on_cpu(int cpu);
+
+void release_ds_buffers(void);
+
+void reserve_ds_buffers(void);
+
+void release_lbr_buffers(void);
+
+void reserve_lbr_buffers(void);
+
+extern struct event_constraint bts_constraint;
+extern struct event_constraint vlbr_constraint;
+
+void intel_pmu_enable_bts(u64 config);
+
+void intel_pmu_disable_bts(void);
+
+int intel_pmu_drain_bts_buffer(void);
+
+u64 adl_latency_data_small(struct perf_event *event, u64 status);
+
+u64 mtl_latency_data_small(struct perf_event *event, u64 status);
+
+extern struct event_constraint intel_core2_pebs_event_constraints[];
+
+extern struct event_constraint intel_atom_pebs_event_constraints[];
+
+extern struct event_constraint intel_slm_pebs_event_constraints[];
+
+extern struct event_constraint intel_glm_pebs_event_constraints[];
+
+extern struct event_constraint intel_glp_pebs_event_constraints[];
+
+extern struct event_constraint intel_grt_pebs_event_constraints[];
+
+extern struct event_constraint intel_nehalem_pebs_event_constraints[];
+
+extern struct event_constraint intel_westmere_pebs_event_constraints[];
+
+extern struct event_constraint intel_snb_pebs_event_constraints[];
+
+extern struct event_constraint intel_ivb_pebs_event_constraints[];
+
+extern struct event_constraint intel_hsw_pebs_event_constraints[];
+
+extern struct event_constraint intel_bdw_pebs_event_constraints[];
+
+extern struct event_constraint intel_skl_pebs_event_constraints[];
+
+extern struct event_constraint intel_icl_pebs_event_constraints[];
+
+extern struct event_constraint intel_spr_pebs_event_constraints[];
+
+struct event_constraint *intel_pebs_constraints(struct perf_event *event);
+
+void intel_pmu_pebs_add(struct perf_event *event);
+
+void intel_pmu_pebs_del(struct perf_event *event);
+
+void intel_pmu_pebs_enable(struct perf_event *event);
+
+void intel_pmu_pebs_disable(struct perf_event *event);
+
+void intel_pmu_pebs_enable_all(void);
+
+void intel_pmu_pebs_disable_all(void);
+
+void intel_pmu_pebs_sched_task(struct perf_event_pmu_context *pmu_ctx, bool sched_in);
+
+void intel_pmu_auto_reload_read(struct perf_event *event);
+
+void intel_pmu_store_pebs_lbrs(struct lbr_entry *lbr);
+
+void intel_ds_init(void);
+
+void intel_pmu_lbr_swap_task_ctx(struct perf_event_pmu_context *prev_epc,
+ struct perf_event_pmu_context *next_epc);
+
+void intel_pmu_lbr_sched_task(struct perf_event_pmu_context *pmu_ctx, bool sched_in);
+
+u64 lbr_from_signext_quirk_wr(u64 val);
+
+void intel_pmu_lbr_reset(void);
+
+void intel_pmu_lbr_reset_32(void);
+
+void intel_pmu_lbr_reset_64(void);
+
+void intel_pmu_lbr_add(struct perf_event *event);
+
+void intel_pmu_lbr_del(struct perf_event *event);
+
+void intel_pmu_lbr_enable_all(bool pmi);
+
+void intel_pmu_lbr_disable_all(void);
+
+void intel_pmu_lbr_read(void);
+
+void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc);
+
+void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc);
+
+void intel_pmu_lbr_save(void *ctx);
+
+void intel_pmu_lbr_restore(void *ctx);
+
+void intel_pmu_lbr_init_core(void);
+
+void intel_pmu_lbr_init_nhm(void);
+
+void intel_pmu_lbr_init_atom(void);
+
+void intel_pmu_lbr_init_slm(void);
+
+void intel_pmu_lbr_init_snb(void);
+
+void intel_pmu_lbr_init_hsw(void);
+
+void intel_pmu_lbr_init_skl(void);
+
+void intel_pmu_lbr_init_knl(void);
+
+void intel_pmu_lbr_init(void);
+
+void intel_pmu_arch_lbr_init(void);
+
+void intel_pmu_pebs_data_source_nhm(void);
+
+void intel_pmu_pebs_data_source_skl(bool pmem);
+
+void intel_pmu_pebs_data_source_adl(void);
+
+void intel_pmu_pebs_data_source_grt(void);
+
+void intel_pmu_pebs_data_source_mtl(void);
+
+int intel_pmu_setup_lbr_filter(struct perf_event *event);
+
+void intel_pt_interrupt(void);
+
+int intel_bts_interrupt(void);
+
+void intel_bts_enable_local(void);
+
+void intel_bts_disable_local(void);
+
+int p4_pmu_init(void);
+
+int p6_pmu_init(void);
+
+int knc_pmu_init(void);
+
+static inline int is_ht_workaround_enabled(void)
+{
+ return !!(x86_pmu.flags & PMU_FL_EXCL_ENABLED);
+}
+
+#else /* CONFIG_CPU_SUP_INTEL */
+
+static inline void reserve_ds_buffers(void)
+{
+}
+
+static inline void release_ds_buffers(void)
+{
+}
+
+static inline void release_lbr_buffers(void)
+{
+}
+
+static inline void reserve_lbr_buffers(void)
+{
+}
+
+static inline int intel_pmu_init(void)
+{
+ return 0;
+}
+
+static inline int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu)
+{
+ return 0;
+}
+
+static inline void intel_cpuc_finish(struct cpu_hw_events *cpuc)
+{
+}
+
+static inline int is_ht_workaround_enabled(void)
+{
+ return 0;
+}
+#endif /* CONFIG_CPU_SUP_INTEL */
+
+#if ((defined CONFIG_CPU_SUP_CENTAUR) || (defined CONFIG_CPU_SUP_ZHAOXIN))
+int zhaoxin_pmu_init(void);
+#else
+static inline int zhaoxin_pmu_init(void)
+{
+ return 0;
+}
+#endif /*CONFIG_CPU_SUP_CENTAUR or CONFIG_CPU_SUP_ZHAOXIN*/
diff --git a/arch/x86/events/perf_event_flags.h b/arch/x86/events/perf_event_flags.h
new file mode 100644
index 000000000000..1dc19b9b4426
--- /dev/null
+++ b/arch/x86/events/perf_event_flags.h
@@ -0,0 +1,22 @@
+
+/*
+ * struct hw_perf_event.flags flags
+ */
+PERF_ARCH(PEBS_LDLAT, 0x00001) /* ld+ldlat data address sampling */
+PERF_ARCH(PEBS_ST, 0x00002) /* st data address sampling */
+PERF_ARCH(PEBS_ST_HSW, 0x00004) /* haswell style datala, store */
+PERF_ARCH(PEBS_LD_HSW, 0x00008) /* haswell style datala, load */
+PERF_ARCH(PEBS_NA_HSW, 0x00010) /* haswell style datala, unknown */
+PERF_ARCH(EXCL, 0x00020) /* HT exclusivity on counter */
+PERF_ARCH(DYNAMIC, 0x00040) /* dynamic alloc'd constraint */
+ /* 0x00080 */
+PERF_ARCH(EXCL_ACCT, 0x00100) /* accounted EXCL event */
+PERF_ARCH(AUTO_RELOAD, 0x00200) /* use PEBS auto-reload */
+PERF_ARCH(LARGE_PEBS, 0x00400) /* use large PEBS */
+PERF_ARCH(PEBS_VIA_PT, 0x00800) /* use PT buffer for PEBS */
+PERF_ARCH(PAIR, 0x01000) /* Large Increment per Cycle */
+PERF_ARCH(LBR_SELECT, 0x02000) /* Save/Restore MSR_LBR_SELECT */
+PERF_ARCH(TOPDOWN, 0x04000) /* Count Topdown slots/metrics events */
+PERF_ARCH(PEBS_STLAT, 0x08000) /* st+stlat data address sampling */
+PERF_ARCH(AMD_BRS, 0x10000) /* AMD Branch Sampling */
+PERF_ARCH(PEBS_LAT_HYBRID, 0x20000) /* ld and st lat for hybrid */
diff --git a/arch/x86/events/probe.c b/arch/x86/events/probe.c
new file mode 100644
index 000000000000..600bf8d15c0c
--- /dev/null
+++ b/arch/x86/events/probe.c
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/export.h>
+#include <linux/types.h>
+#include <linux/bits.h>
+#include "probe.h"
+
+static umode_t
+not_visible(struct kobject *kobj, struct attribute *attr, int i)
+{
+ return 0;
+}
+
+/*
+ * Accepts msr[] array with non populated entries as long as either
+ * msr[i].msr is 0 or msr[i].grp is NULL. Note that the default sysfs
+ * visibility is visible when group->is_visible callback is set.
+ */
+unsigned long
+perf_msr_probe(struct perf_msr *msr, int cnt, bool zero, void *data)
+{
+ unsigned long avail = 0;
+ unsigned int bit;
+ u64 val;
+
+ if (cnt >= BITS_PER_LONG)
+ return 0;
+
+ for (bit = 0; bit < cnt; bit++) {
+ if (!msr[bit].no_check) {
+ struct attribute_group *grp = msr[bit].grp;
+ u64 mask;
+
+ /* skip entry with no group */
+ if (!grp)
+ continue;
+
+ grp->is_visible = not_visible;
+
+ /* skip unpopulated entry */
+ if (!msr[bit].msr)
+ continue;
+
+ if (msr[bit].test && !msr[bit].test(bit, data))
+ continue;
+ /* Virt sucks; you cannot tell if a R/O MSR is present :/ */
+ if (rdmsrl_safe(msr[bit].msr, &val))
+ continue;
+
+ mask = msr[bit].mask;
+ if (!mask)
+ mask = ~0ULL;
+ /* Disable zero counters if requested. */
+ if (!zero && !(val & mask))
+ continue;
+
+ grp->is_visible = NULL;
+ }
+ avail |= BIT(bit);
+ }
+
+ return avail;
+}
+EXPORT_SYMBOL_GPL(perf_msr_probe);
diff --git a/arch/x86/events/probe.h b/arch/x86/events/probe.h
new file mode 100644
index 000000000000..261b9bda24e3
--- /dev/null
+++ b/arch/x86/events/probe.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ARCH_X86_EVENTS_PROBE_H__
+#define __ARCH_X86_EVENTS_PROBE_H__
+#include <linux/sysfs.h>
+
+struct perf_msr {
+ u64 msr;
+ struct attribute_group *grp;
+ bool (*test)(int idx, void *data);
+ bool no_check;
+ u64 mask;
+};
+
+unsigned long
+perf_msr_probe(struct perf_msr *msr, int cnt, bool no_zero, void *data);
+
+#define __PMU_EVENT_GROUP(_name) \
+static struct attribute *attrs_##_name[] = { \
+ &attr_##_name.attr.attr, \
+ NULL, \
+}
+
+#define PMU_EVENT_GROUP(_grp, _name) \
+__PMU_EVENT_GROUP(_name); \
+static struct attribute_group group_##_name = { \
+ .name = #_grp, \
+ .attrs = attrs_##_name, \
+}
+
+#endif /* __ARCH_X86_EVENTS_PROBE_H__ */
diff --git a/arch/x86/events/rapl.c b/arch/x86/events/rapl.c
new file mode 100644
index 000000000000..52e6e7ed4f78
--- /dev/null
+++ b/arch/x86/events/rapl.c
@@ -0,0 +1,875 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Support Intel/AMD RAPL energy consumption counters
+ * Copyright (C) 2013 Google, Inc., Stephane Eranian
+ *
+ * Intel RAPL interface is specified in the IA-32 Manual Vol3b
+ * section 14.7.1 (September 2013)
+ *
+ * AMD RAPL interface for Fam17h is described in the public PPR:
+ * https://bugzilla.kernel.org/show_bug.cgi?id=206537
+ *
+ * RAPL provides more controls than just reporting energy consumption
+ * however here we only expose the 3 energy consumption free running
+ * counters (pp0, pkg, dram).
+ *
+ * Each of those counters increments in a power unit defined by the
+ * RAPL_POWER_UNIT MSR. On SandyBridge, this unit is 1/(2^16) Joules
+ * but it can vary.
+ *
+ * Counter to rapl events mappings:
+ *
+ * pp0 counter: consumption of all physical cores (power plane 0)
+ * event: rapl_energy_cores
+ * perf code: 0x1
+ *
+ * pkg counter: consumption of the whole processor package
+ * event: rapl_energy_pkg
+ * perf code: 0x2
+ *
+ * dram counter: consumption of the dram domain (servers only)
+ * event: rapl_energy_dram
+ * perf code: 0x3
+ *
+ * gpu counter: consumption of the builtin-gpu domain (client only)
+ * event: rapl_energy_gpu
+ * perf code: 0x4
+ *
+ * psys counter: consumption of the builtin-psys domain (client only)
+ * event: rapl_energy_psys
+ * perf code: 0x5
+ *
+ * We manage those counters as free running (read-only). They may be
+ * use simultaneously by other tools, such as turbostat.
+ *
+ * The events only support system-wide mode counting. There is no
+ * sampling support because it does not make sense and is not
+ * supported by the RAPL hardware.
+ *
+ * Because we want to avoid floating-point operations in the kernel,
+ * the events are all reported in fixed point arithmetic (32.32).
+ * Tools must adjust the counts to convert them to Watts using
+ * the duration of the measurement. Tools may use a function such as
+ * ldexp(raw_count, -32);
+ */
+
+#define pr_fmt(fmt) "RAPL PMU: " fmt
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/perf_event.h>
+#include <linux/nospec.h>
+#include <asm/cpu_device_id.h>
+#include <asm/intel-family.h>
+#include "perf_event.h"
+#include "probe.h"
+
+MODULE_LICENSE("GPL");
+
+/*
+ * RAPL energy status counters
+ */
+enum perf_rapl_events {
+ PERF_RAPL_PP0 = 0, /* all cores */
+ PERF_RAPL_PKG, /* entire package */
+ PERF_RAPL_RAM, /* DRAM */
+ PERF_RAPL_PP1, /* gpu */
+ PERF_RAPL_PSYS, /* psys */
+
+ PERF_RAPL_MAX,
+ NR_RAPL_DOMAINS = PERF_RAPL_MAX,
+};
+
+static const char *const rapl_domain_names[NR_RAPL_DOMAINS] __initconst = {
+ "pp0-core",
+ "package",
+ "dram",
+ "pp1-gpu",
+ "psys",
+};
+
+/*
+ * event code: LSB 8 bits, passed in attr->config
+ * any other bit is reserved
+ */
+#define RAPL_EVENT_MASK 0xFFULL
+#define RAPL_CNTR_WIDTH 32
+
+#define RAPL_EVENT_ATTR_STR(_name, v, str) \
+static struct perf_pmu_events_attr event_attr_##v = { \
+ .attr = __ATTR(_name, 0444, perf_event_sysfs_show, NULL), \
+ .id = 0, \
+ .event_str = str, \
+};
+
+struct rapl_pmu {
+ raw_spinlock_t lock;
+ int n_active;
+ int cpu;
+ struct list_head active_list;
+ struct pmu *pmu;
+ ktime_t timer_interval;
+ struct hrtimer hrtimer;
+};
+
+struct rapl_pmus {
+ struct pmu pmu;
+ unsigned int maxdie;
+ struct rapl_pmu *pmus[];
+};
+
+enum rapl_unit_quirk {
+ RAPL_UNIT_QUIRK_NONE,
+ RAPL_UNIT_QUIRK_INTEL_HSW,
+ RAPL_UNIT_QUIRK_INTEL_SPR,
+};
+
+struct rapl_model {
+ struct perf_msr *rapl_msrs;
+ unsigned long events;
+ unsigned int msr_power_unit;
+ enum rapl_unit_quirk unit_quirk;
+};
+
+ /* 1/2^hw_unit Joule */
+static int rapl_hw_unit[NR_RAPL_DOMAINS] __read_mostly;
+static struct rapl_pmus *rapl_pmus;
+static cpumask_t rapl_cpu_mask;
+static unsigned int rapl_cntr_mask;
+static u64 rapl_timer_ms;
+static struct perf_msr *rapl_msrs;
+
+static inline struct rapl_pmu *cpu_to_rapl_pmu(unsigned int cpu)
+{
+ unsigned int dieid = topology_logical_die_id(cpu);
+
+ /*
+ * The unsigned check also catches the '-1' return value for non
+ * existent mappings in the topology map.
+ */
+ return dieid < rapl_pmus->maxdie ? rapl_pmus->pmus[dieid] : NULL;
+}
+
+static inline u64 rapl_read_counter(struct perf_event *event)
+{
+ u64 raw;
+ rdmsrl(event->hw.event_base, raw);
+ return raw;
+}
+
+static inline u64 rapl_scale(u64 v, int cfg)
+{
+ if (cfg > NR_RAPL_DOMAINS) {
+ pr_warn("Invalid domain %d, failed to scale data\n", cfg);
+ return v;
+ }
+ /*
+ * scale delta to smallest unit (1/2^32)
+ * users must then scale back: count * 1/(1e9*2^32) to get Joules
+ * or use ldexp(count, -32).
+ * Watts = Joules/Time delta
+ */
+ return v << (32 - rapl_hw_unit[cfg - 1]);
+}
+
+static u64 rapl_event_update(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+ u64 prev_raw_count, new_raw_count;
+ s64 delta, sdelta;
+ int shift = RAPL_CNTR_WIDTH;
+
+again:
+ prev_raw_count = local64_read(&hwc->prev_count);
+ rdmsrl(event->hw.event_base, new_raw_count);
+
+ if (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
+ new_raw_count) != prev_raw_count) {
+ cpu_relax();
+ goto again;
+ }
+
+ /*
+ * Now we have the new raw value and have updated the prev
+ * timestamp already. We can now calculate the elapsed delta
+ * (event-)time and add that to the generic event.
+ *
+ * Careful, not all hw sign-extends above the physical width
+ * of the count.
+ */
+ delta = (new_raw_count << shift) - (prev_raw_count << shift);
+ delta >>= shift;
+
+ sdelta = rapl_scale(delta, event->hw.config);
+
+ local64_add(sdelta, &event->count);
+
+ return new_raw_count;
+}
+
+static void rapl_start_hrtimer(struct rapl_pmu *pmu)
+{
+ hrtimer_start(&pmu->hrtimer, pmu->timer_interval,
+ HRTIMER_MODE_REL_PINNED);
+}
+
+static enum hrtimer_restart rapl_hrtimer_handle(struct hrtimer *hrtimer)
+{
+ struct rapl_pmu *pmu = container_of(hrtimer, struct rapl_pmu, hrtimer);
+ struct perf_event *event;
+ unsigned long flags;
+
+ if (!pmu->n_active)
+ return HRTIMER_NORESTART;
+
+ raw_spin_lock_irqsave(&pmu->lock, flags);
+
+ list_for_each_entry(event, &pmu->active_list, active_entry)
+ rapl_event_update(event);
+
+ raw_spin_unlock_irqrestore(&pmu->lock, flags);
+
+ hrtimer_forward_now(hrtimer, pmu->timer_interval);
+
+ return HRTIMER_RESTART;
+}
+
+static void rapl_hrtimer_init(struct rapl_pmu *pmu)
+{
+ struct hrtimer *hr = &pmu->hrtimer;
+
+ hrtimer_init(hr, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+ hr->function = rapl_hrtimer_handle;
+}
+
+static void __rapl_pmu_event_start(struct rapl_pmu *pmu,
+ struct perf_event *event)
+{
+ if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
+ return;
+
+ event->hw.state = 0;
+
+ list_add_tail(&event->active_entry, &pmu->active_list);
+
+ local64_set(&event->hw.prev_count, rapl_read_counter(event));
+
+ pmu->n_active++;
+ if (pmu->n_active == 1)
+ rapl_start_hrtimer(pmu);
+}
+
+static void rapl_pmu_event_start(struct perf_event *event, int mode)
+{
+ struct rapl_pmu *pmu = event->pmu_private;
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&pmu->lock, flags);
+ __rapl_pmu_event_start(pmu, event);
+ raw_spin_unlock_irqrestore(&pmu->lock, flags);
+}
+
+static void rapl_pmu_event_stop(struct perf_event *event, int mode)
+{
+ struct rapl_pmu *pmu = event->pmu_private;
+ struct hw_perf_event *hwc = &event->hw;
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&pmu->lock, flags);
+
+ /* mark event as deactivated and stopped */
+ if (!(hwc->state & PERF_HES_STOPPED)) {
+ WARN_ON_ONCE(pmu->n_active <= 0);
+ pmu->n_active--;
+ if (pmu->n_active == 0)
+ hrtimer_cancel(&pmu->hrtimer);
+
+ list_del(&event->active_entry);
+
+ WARN_ON_ONCE(hwc->state & PERF_HES_STOPPED);
+ hwc->state |= PERF_HES_STOPPED;
+ }
+
+ /* check if update of sw counter is necessary */
+ if ((mode & PERF_EF_UPDATE) && !(hwc->state & PERF_HES_UPTODATE)) {
+ /*
+ * Drain the remaining delta count out of a event
+ * that we are disabling:
+ */
+ rapl_event_update(event);
+ hwc->state |= PERF_HES_UPTODATE;
+ }
+
+ raw_spin_unlock_irqrestore(&pmu->lock, flags);
+}
+
+static int rapl_pmu_event_add(struct perf_event *event, int mode)
+{
+ struct rapl_pmu *pmu = event->pmu_private;
+ struct hw_perf_event *hwc = &event->hw;
+ unsigned long flags;
+
+ raw_spin_lock_irqsave(&pmu->lock, flags);
+
+ hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+
+ if (mode & PERF_EF_START)
+ __rapl_pmu_event_start(pmu, event);
+
+ raw_spin_unlock_irqrestore(&pmu->lock, flags);
+
+ return 0;
+}
+
+static void rapl_pmu_event_del(struct perf_event *event, int flags)
+{
+ rapl_pmu_event_stop(event, PERF_EF_UPDATE);
+}
+
+static int rapl_pmu_event_init(struct perf_event *event)
+{
+ u64 cfg = event->attr.config & RAPL_EVENT_MASK;
+ int bit, ret = 0;
+ struct rapl_pmu *pmu;
+
+ /* only look at RAPL events */
+ if (event->attr.type != rapl_pmus->pmu.type)
+ return -ENOENT;
+
+ /* check only supported bits are set */
+ if (event->attr.config & ~RAPL_EVENT_MASK)
+ return -EINVAL;
+
+ if (event->cpu < 0)
+ return -EINVAL;
+
+ event->event_caps |= PERF_EV_CAP_READ_ACTIVE_PKG;
+
+ if (!cfg || cfg >= NR_RAPL_DOMAINS + 1)
+ return -EINVAL;
+
+ cfg = array_index_nospec((long)cfg, NR_RAPL_DOMAINS + 1);
+ bit = cfg - 1;
+
+ /* check event supported */
+ if (!(rapl_cntr_mask & (1 << bit)))
+ return -EINVAL;
+
+ /* unsupported modes and filters */
+ if (event->attr.sample_period) /* no sampling */
+ return -EINVAL;
+
+ /* must be done before validate_group */
+ pmu = cpu_to_rapl_pmu(event->cpu);
+ if (!pmu)
+ return -EINVAL;
+ event->cpu = pmu->cpu;
+ event->pmu_private = pmu;
+ event->hw.event_base = rapl_msrs[bit].msr;
+ event->hw.config = cfg;
+ event->hw.idx = bit;
+
+ return ret;
+}
+
+static void rapl_pmu_event_read(struct perf_event *event)
+{
+ rapl_event_update(event);
+}
+
+static ssize_t rapl_get_attr_cpumask(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return cpumap_print_to_pagebuf(true, buf, &rapl_cpu_mask);
+}
+
+static DEVICE_ATTR(cpumask, S_IRUGO, rapl_get_attr_cpumask, NULL);
+
+static struct attribute *rapl_pmu_attrs[] = {
+ &dev_attr_cpumask.attr,
+ NULL,
+};
+
+static struct attribute_group rapl_pmu_attr_group = {
+ .attrs = rapl_pmu_attrs,
+};
+
+RAPL_EVENT_ATTR_STR(energy-cores, rapl_cores, "event=0x01");
+RAPL_EVENT_ATTR_STR(energy-pkg , rapl_pkg, "event=0x02");
+RAPL_EVENT_ATTR_STR(energy-ram , rapl_ram, "event=0x03");
+RAPL_EVENT_ATTR_STR(energy-gpu , rapl_gpu, "event=0x04");
+RAPL_EVENT_ATTR_STR(energy-psys, rapl_psys, "event=0x05");
+
+RAPL_EVENT_ATTR_STR(energy-cores.unit, rapl_cores_unit, "Joules");
+RAPL_EVENT_ATTR_STR(energy-pkg.unit , rapl_pkg_unit, "Joules");
+RAPL_EVENT_ATTR_STR(energy-ram.unit , rapl_ram_unit, "Joules");
+RAPL_EVENT_ATTR_STR(energy-gpu.unit , rapl_gpu_unit, "Joules");
+RAPL_EVENT_ATTR_STR(energy-psys.unit, rapl_psys_unit, "Joules");
+
+/*
+ * we compute in 0.23 nJ increments regardless of MSR
+ */
+RAPL_EVENT_ATTR_STR(energy-cores.scale, rapl_cores_scale, "2.3283064365386962890625e-10");
+RAPL_EVENT_ATTR_STR(energy-pkg.scale, rapl_pkg_scale, "2.3283064365386962890625e-10");
+RAPL_EVENT_ATTR_STR(energy-ram.scale, rapl_ram_scale, "2.3283064365386962890625e-10");
+RAPL_EVENT_ATTR_STR(energy-gpu.scale, rapl_gpu_scale, "2.3283064365386962890625e-10");
+RAPL_EVENT_ATTR_STR(energy-psys.scale, rapl_psys_scale, "2.3283064365386962890625e-10");
+
+/*
+ * There are no default events, but we need to create
+ * "events" group (with empty attrs) before updating
+ * it with detected events.
+ */
+static struct attribute *attrs_empty[] = {
+ NULL,
+};
+
+static struct attribute_group rapl_pmu_events_group = {
+ .name = "events",
+ .attrs = attrs_empty,
+};
+
+PMU_FORMAT_ATTR(event, "config:0-7");
+static struct attribute *rapl_formats_attr[] = {
+ &format_attr_event.attr,
+ NULL,
+};
+
+static struct attribute_group rapl_pmu_format_group = {
+ .name = "format",
+ .attrs = rapl_formats_attr,
+};
+
+static const struct attribute_group *rapl_attr_groups[] = {
+ &rapl_pmu_attr_group,
+ &rapl_pmu_format_group,
+ &rapl_pmu_events_group,
+ NULL,
+};
+
+static struct attribute *rapl_events_cores[] = {
+ EVENT_PTR(rapl_cores),
+ EVENT_PTR(rapl_cores_unit),
+ EVENT_PTR(rapl_cores_scale),
+ NULL,
+};
+
+static struct attribute_group rapl_events_cores_group = {
+ .name = "events",
+ .attrs = rapl_events_cores,
+};
+
+static struct attribute *rapl_events_pkg[] = {
+ EVENT_PTR(rapl_pkg),
+ EVENT_PTR(rapl_pkg_unit),
+ EVENT_PTR(rapl_pkg_scale),
+ NULL,
+};
+
+static struct attribute_group rapl_events_pkg_group = {
+ .name = "events",
+ .attrs = rapl_events_pkg,
+};
+
+static struct attribute *rapl_events_ram[] = {
+ EVENT_PTR(rapl_ram),
+ EVENT_PTR(rapl_ram_unit),
+ EVENT_PTR(rapl_ram_scale),
+ NULL,
+};
+
+static struct attribute_group rapl_events_ram_group = {
+ .name = "events",
+ .attrs = rapl_events_ram,
+};
+
+static struct attribute *rapl_events_gpu[] = {
+ EVENT_PTR(rapl_gpu),
+ EVENT_PTR(rapl_gpu_unit),
+ EVENT_PTR(rapl_gpu_scale),
+ NULL,
+};
+
+static struct attribute_group rapl_events_gpu_group = {
+ .name = "events",
+ .attrs = rapl_events_gpu,
+};
+
+static struct attribute *rapl_events_psys[] = {
+ EVENT_PTR(rapl_psys),
+ EVENT_PTR(rapl_psys_unit),
+ EVENT_PTR(rapl_psys_scale),
+ NULL,
+};
+
+static struct attribute_group rapl_events_psys_group = {
+ .name = "events",
+ .attrs = rapl_events_psys,
+};
+
+static bool test_msr(int idx, void *data)
+{
+ return test_bit(idx, (unsigned long *) data);
+}
+
+/* Only lower 32bits of the MSR represents the energy counter */
+#define RAPL_MSR_MASK 0xFFFFFFFF
+
+static struct perf_msr intel_rapl_msrs[] = {
+ [PERF_RAPL_PP0] = { MSR_PP0_ENERGY_STATUS, &rapl_events_cores_group, test_msr, false, RAPL_MSR_MASK },
+ [PERF_RAPL_PKG] = { MSR_PKG_ENERGY_STATUS, &rapl_events_pkg_group, test_msr, false, RAPL_MSR_MASK },
+ [PERF_RAPL_RAM] = { MSR_DRAM_ENERGY_STATUS, &rapl_events_ram_group, test_msr, false, RAPL_MSR_MASK },
+ [PERF_RAPL_PP1] = { MSR_PP1_ENERGY_STATUS, &rapl_events_gpu_group, test_msr, false, RAPL_MSR_MASK },
+ [PERF_RAPL_PSYS] = { MSR_PLATFORM_ENERGY_STATUS, &rapl_events_psys_group, test_msr, false, RAPL_MSR_MASK },
+};
+
+static struct perf_msr intel_rapl_spr_msrs[] = {
+ [PERF_RAPL_PP0] = { MSR_PP0_ENERGY_STATUS, &rapl_events_cores_group, test_msr, false, RAPL_MSR_MASK },
+ [PERF_RAPL_PKG] = { MSR_PKG_ENERGY_STATUS, &rapl_events_pkg_group, test_msr, false, RAPL_MSR_MASK },
+ [PERF_RAPL_RAM] = { MSR_DRAM_ENERGY_STATUS, &rapl_events_ram_group, test_msr, false, RAPL_MSR_MASK },
+ [PERF_RAPL_PP1] = { MSR_PP1_ENERGY_STATUS, &rapl_events_gpu_group, test_msr, false, RAPL_MSR_MASK },
+ [PERF_RAPL_PSYS] = { MSR_PLATFORM_ENERGY_STATUS, &rapl_events_psys_group, test_msr, true, RAPL_MSR_MASK },
+};
+
+/*
+ * Force to PERF_RAPL_MAX size due to:
+ * - perf_msr_probe(PERF_RAPL_MAX)
+ * - want to use same event codes across both architectures
+ */
+static struct perf_msr amd_rapl_msrs[] = {
+ [PERF_RAPL_PP0] = { 0, &rapl_events_cores_group, 0, false, 0 },
+ [PERF_RAPL_PKG] = { MSR_AMD_PKG_ENERGY_STATUS, &rapl_events_pkg_group, test_msr, false, RAPL_MSR_MASK },
+ [PERF_RAPL_RAM] = { 0, &rapl_events_ram_group, 0, false, 0 },
+ [PERF_RAPL_PP1] = { 0, &rapl_events_gpu_group, 0, false, 0 },
+ [PERF_RAPL_PSYS] = { 0, &rapl_events_psys_group, 0, false, 0 },
+};
+
+static int rapl_cpu_offline(unsigned int cpu)
+{
+ struct rapl_pmu *pmu = cpu_to_rapl_pmu(cpu);
+ int target;
+
+ /* Check if exiting cpu is used for collecting rapl events */
+ if (!cpumask_test_and_clear_cpu(cpu, &rapl_cpu_mask))
+ return 0;
+
+ pmu->cpu = -1;
+ /* Find a new cpu to collect rapl events */
+ target = cpumask_any_but(topology_die_cpumask(cpu), cpu);
+
+ /* Migrate rapl events to the new target */
+ if (target < nr_cpu_ids) {
+ cpumask_set_cpu(target, &rapl_cpu_mask);
+ pmu->cpu = target;
+ perf_pmu_migrate_context(pmu->pmu, cpu, target);
+ }
+ return 0;
+}
+
+static int rapl_cpu_online(unsigned int cpu)
+{
+ struct rapl_pmu *pmu = cpu_to_rapl_pmu(cpu);
+ int target;
+
+ if (!pmu) {
+ pmu = kzalloc_node(sizeof(*pmu), GFP_KERNEL, cpu_to_node(cpu));
+ if (!pmu)
+ return -ENOMEM;
+
+ raw_spin_lock_init(&pmu->lock);
+ INIT_LIST_HEAD(&pmu->active_list);
+ pmu->pmu = &rapl_pmus->pmu;
+ pmu->timer_interval = ms_to_ktime(rapl_timer_ms);
+ rapl_hrtimer_init(pmu);
+
+ rapl_pmus->pmus[topology_logical_die_id(cpu)] = pmu;
+ }
+
+ /*
+ * Check if there is an online cpu in the package which collects rapl
+ * events already.
+ */
+ target = cpumask_any_and(&rapl_cpu_mask, topology_die_cpumask(cpu));
+ if (target < nr_cpu_ids)
+ return 0;
+
+ cpumask_set_cpu(cpu, &rapl_cpu_mask);
+ pmu->cpu = cpu;
+ return 0;
+}
+
+static int rapl_check_hw_unit(struct rapl_model *rm)
+{
+ u64 msr_rapl_power_unit_bits;
+ int i;
+
+ /* protect rdmsrl() to handle virtualization */
+ if (rdmsrl_safe(rm->msr_power_unit, &msr_rapl_power_unit_bits))
+ return -1;
+ for (i = 0; i < NR_RAPL_DOMAINS; i++)
+ rapl_hw_unit[i] = (msr_rapl_power_unit_bits >> 8) & 0x1FULL;
+
+ switch (rm->unit_quirk) {
+ /*
+ * DRAM domain on HSW server and KNL has fixed energy unit which can be
+ * different than the unit from power unit MSR. See
+ * "Intel Xeon Processor E5-1600 and E5-2600 v3 Product Families, V2
+ * of 2. Datasheet, September 2014, Reference Number: 330784-001 "
+ */
+ case RAPL_UNIT_QUIRK_INTEL_HSW:
+ rapl_hw_unit[PERF_RAPL_RAM] = 16;
+ break;
+ /* SPR uses a fixed energy unit for Psys domain. */
+ case RAPL_UNIT_QUIRK_INTEL_SPR:
+ rapl_hw_unit[PERF_RAPL_PSYS] = 0;
+ break;
+ default:
+ break;
+ }
+
+
+ /*
+ * Calculate the timer rate:
+ * Use reference of 200W for scaling the timeout to avoid counter
+ * overflows. 200W = 200 Joules/sec
+ * Divide interval by 2 to avoid lockstep (2 * 100)
+ * if hw unit is 32, then we use 2 ms 1/200/2
+ */
+ rapl_timer_ms = 2;
+ if (rapl_hw_unit[0] < 32) {
+ rapl_timer_ms = (1000 / (2 * 100));
+ rapl_timer_ms *= (1ULL << (32 - rapl_hw_unit[0] - 1));
+ }
+ return 0;
+}
+
+static void __init rapl_advertise(void)
+{
+ int i;
+
+ pr_info("API unit is 2^-32 Joules, %d fixed counters, %llu ms ovfl timer\n",
+ hweight32(rapl_cntr_mask), rapl_timer_ms);
+
+ for (i = 0; i < NR_RAPL_DOMAINS; i++) {
+ if (rapl_cntr_mask & (1 << i)) {
+ pr_info("hw unit of domain %s 2^-%d Joules\n",
+ rapl_domain_names[i], rapl_hw_unit[i]);
+ }
+ }
+}
+
+static void cleanup_rapl_pmus(void)
+{
+ int i;
+
+ for (i = 0; i < rapl_pmus->maxdie; i++)
+ kfree(rapl_pmus->pmus[i]);
+ kfree(rapl_pmus);
+}
+
+static const struct attribute_group *rapl_attr_update[] = {
+ &rapl_events_cores_group,
+ &rapl_events_pkg_group,
+ &rapl_events_ram_group,
+ &rapl_events_gpu_group,
+ &rapl_events_psys_group,
+ NULL,
+};
+
+static int __init init_rapl_pmus(void)
+{
+ int maxdie = topology_max_packages() * topology_max_die_per_package();
+ size_t size;
+
+ size = sizeof(*rapl_pmus) + maxdie * sizeof(struct rapl_pmu *);
+ rapl_pmus = kzalloc(size, GFP_KERNEL);
+ if (!rapl_pmus)
+ return -ENOMEM;
+
+ rapl_pmus->maxdie = maxdie;
+ rapl_pmus->pmu.attr_groups = rapl_attr_groups;
+ rapl_pmus->pmu.attr_update = rapl_attr_update;
+ rapl_pmus->pmu.task_ctx_nr = perf_invalid_context;
+ rapl_pmus->pmu.event_init = rapl_pmu_event_init;
+ rapl_pmus->pmu.add = rapl_pmu_event_add;
+ rapl_pmus->pmu.del = rapl_pmu_event_del;
+ rapl_pmus->pmu.start = rapl_pmu_event_start;
+ rapl_pmus->pmu.stop = rapl_pmu_event_stop;
+ rapl_pmus->pmu.read = rapl_pmu_event_read;
+ rapl_pmus->pmu.module = THIS_MODULE;
+ rapl_pmus->pmu.capabilities = PERF_PMU_CAP_NO_EXCLUDE;
+ return 0;
+}
+
+static struct rapl_model model_snb = {
+ .events = BIT(PERF_RAPL_PP0) |
+ BIT(PERF_RAPL_PKG) |
+ BIT(PERF_RAPL_PP1),
+ .msr_power_unit = MSR_RAPL_POWER_UNIT,
+ .rapl_msrs = intel_rapl_msrs,
+};
+
+static struct rapl_model model_snbep = {
+ .events = BIT(PERF_RAPL_PP0) |
+ BIT(PERF_RAPL_PKG) |
+ BIT(PERF_RAPL_RAM),
+ .msr_power_unit = MSR_RAPL_POWER_UNIT,
+ .rapl_msrs = intel_rapl_msrs,
+};
+
+static struct rapl_model model_hsw = {
+ .events = BIT(PERF_RAPL_PP0) |
+ BIT(PERF_RAPL_PKG) |
+ BIT(PERF_RAPL_RAM) |
+ BIT(PERF_RAPL_PP1),
+ .msr_power_unit = MSR_RAPL_POWER_UNIT,
+ .rapl_msrs = intel_rapl_msrs,
+};
+
+static struct rapl_model model_hsx = {
+ .events = BIT(PERF_RAPL_PP0) |
+ BIT(PERF_RAPL_PKG) |
+ BIT(PERF_RAPL_RAM),
+ .unit_quirk = RAPL_UNIT_QUIRK_INTEL_HSW,
+ .msr_power_unit = MSR_RAPL_POWER_UNIT,
+ .rapl_msrs = intel_rapl_msrs,
+};
+
+static struct rapl_model model_knl = {
+ .events = BIT(PERF_RAPL_PKG) |
+ BIT(PERF_RAPL_RAM),
+ .unit_quirk = RAPL_UNIT_QUIRK_INTEL_HSW,
+ .msr_power_unit = MSR_RAPL_POWER_UNIT,
+ .rapl_msrs = intel_rapl_msrs,
+};
+
+static struct rapl_model model_skl = {
+ .events = BIT(PERF_RAPL_PP0) |
+ BIT(PERF_RAPL_PKG) |
+ BIT(PERF_RAPL_RAM) |
+ BIT(PERF_RAPL_PP1) |
+ BIT(PERF_RAPL_PSYS),
+ .msr_power_unit = MSR_RAPL_POWER_UNIT,
+ .rapl_msrs = intel_rapl_msrs,
+};
+
+static struct rapl_model model_spr = {
+ .events = BIT(PERF_RAPL_PP0) |
+ BIT(PERF_RAPL_PKG) |
+ BIT(PERF_RAPL_RAM) |
+ BIT(PERF_RAPL_PSYS),
+ .unit_quirk = RAPL_UNIT_QUIRK_INTEL_SPR,
+ .msr_power_unit = MSR_RAPL_POWER_UNIT,
+ .rapl_msrs = intel_rapl_spr_msrs,
+};
+
+static struct rapl_model model_amd_hygon = {
+ .events = BIT(PERF_RAPL_PKG),
+ .msr_power_unit = MSR_AMD_RAPL_POWER_UNIT,
+ .rapl_msrs = amd_rapl_msrs,
+};
+
+static const struct x86_cpu_id rapl_model_match[] __initconst = {
+ X86_MATCH_FEATURE(X86_FEATURE_RAPL, &model_amd_hygon),
+ X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE, &model_snb),
+ X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE_X, &model_snbep),
+ X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE, &model_snb),
+ X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE_X, &model_snbep),
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL, &model_hsw),
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL_X, &model_hsx),
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL_L, &model_hsw),
+ X86_MATCH_INTEL_FAM6_MODEL(HASWELL_G, &model_hsw),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL, &model_hsw),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_G, &model_hsw),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_X, &model_hsx),
+ X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_D, &model_hsx),
+ X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL, &model_knl),
+ X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNM, &model_knl),
+ X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_L, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_X, &model_hsx),
+ X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE_L, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(CANNONLAKE_L, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT, &model_hsw),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT_D, &model_hsw),
+ X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT_PLUS, &model_hsw),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_D, &model_hsx),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_X, &model_hsx),
+ X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE_L, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE_L, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X, &model_spr),
+ X86_MATCH_INTEL_FAM6_MODEL(EMERALDRAPIDS_X, &model_spr),
+ X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_S, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(METEORLAKE, &model_skl),
+ X86_MATCH_INTEL_FAM6_MODEL(METEORLAKE_L, &model_skl),
+ {},
+};
+MODULE_DEVICE_TABLE(x86cpu, rapl_model_match);
+
+static int __init rapl_pmu_init(void)
+{
+ const struct x86_cpu_id *id;
+ struct rapl_model *rm;
+ int ret;
+
+ id = x86_match_cpu(rapl_model_match);
+ if (!id)
+ return -ENODEV;
+
+ rm = (struct rapl_model *) id->driver_data;
+
+ rapl_msrs = rm->rapl_msrs;
+
+ rapl_cntr_mask = perf_msr_probe(rapl_msrs, PERF_RAPL_MAX,
+ false, (void *) &rm->events);
+
+ ret = rapl_check_hw_unit(rm);
+ if (ret)
+ return ret;
+
+ ret = init_rapl_pmus();
+ if (ret)
+ return ret;
+
+ /*
+ * Install callbacks. Core will call them for each online cpu.
+ */
+ ret = cpuhp_setup_state(CPUHP_AP_PERF_X86_RAPL_ONLINE,
+ "perf/x86/rapl:online",
+ rapl_cpu_online, rapl_cpu_offline);
+ if (ret)
+ goto out;
+
+ ret = perf_pmu_register(&rapl_pmus->pmu, "power", -1);
+ if (ret)
+ goto out1;
+
+ rapl_advertise();
+ return 0;
+
+out1:
+ cpuhp_remove_state(CPUHP_AP_PERF_X86_RAPL_ONLINE);
+out:
+ pr_warn("Initialization failed (%d), disabled\n", ret);
+ cleanup_rapl_pmus();
+ return ret;
+}
+module_init(rapl_pmu_init);
+
+static void __exit intel_rapl_exit(void)
+{
+ cpuhp_remove_state_nocalls(CPUHP_AP_PERF_X86_RAPL_ONLINE);
+ perf_pmu_unregister(&rapl_pmus->pmu);
+ cleanup_rapl_pmus();
+}
+module_exit(intel_rapl_exit);
diff --git a/arch/x86/events/utils.c b/arch/x86/events/utils.c
new file mode 100644
index 000000000000..76b1f8bb0fd5
--- /dev/null
+++ b/arch/x86/events/utils.c
@@ -0,0 +1,251 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <asm/insn.h>
+
+#include "perf_event.h"
+
+static int decode_branch_type(struct insn *insn)
+{
+ int ext;
+
+ if (insn_get_opcode(insn))
+ return X86_BR_ABORT;
+
+ switch (insn->opcode.bytes[0]) {
+ case 0xf:
+ switch (insn->opcode.bytes[1]) {
+ case 0x05: /* syscall */
+ case 0x34: /* sysenter */
+ return X86_BR_SYSCALL;
+ case 0x07: /* sysret */
+ case 0x35: /* sysexit */
+ return X86_BR_SYSRET;
+ case 0x80 ... 0x8f: /* conditional */
+ return X86_BR_JCC;
+ }
+ return X86_BR_NONE;
+ case 0x70 ... 0x7f: /* conditional */
+ return X86_BR_JCC;
+ case 0xc2: /* near ret */
+ case 0xc3: /* near ret */
+ case 0xca: /* far ret */
+ case 0xcb: /* far ret */
+ return X86_BR_RET;
+ case 0xcf: /* iret */
+ return X86_BR_IRET;
+ case 0xcc ... 0xce: /* int */
+ return X86_BR_INT;
+ case 0xe8: /* call near rel */
+ if (insn_get_immediate(insn) || insn->immediate1.value == 0) {
+ /* zero length call */
+ return X86_BR_ZERO_CALL;
+ }
+ fallthrough;
+ case 0x9a: /* call far absolute */
+ return X86_BR_CALL;
+ case 0xe0 ... 0xe3: /* loop jmp */
+ return X86_BR_JCC;
+ case 0xe9 ... 0xeb: /* jmp */
+ return X86_BR_JMP;
+ case 0xff: /* call near absolute, call far absolute ind */
+ if (insn_get_modrm(insn))
+ return X86_BR_ABORT;
+
+ ext = (insn->modrm.bytes[0] >> 3) & 0x7;
+ switch (ext) {
+ case 2: /* near ind call */
+ case 3: /* far ind call */
+ return X86_BR_IND_CALL;
+ case 4:
+ case 5:
+ return X86_BR_IND_JMP;
+ }
+ return X86_BR_NONE;
+ }
+
+ return X86_BR_NONE;
+}
+
+/*
+ * return the type of control flow change at address "from"
+ * instruction is not necessarily a branch (in case of interrupt).
+ *
+ * The branch type returned also includes the priv level of the
+ * target of the control flow change (X86_BR_USER, X86_BR_KERNEL).
+ *
+ * If a branch type is unknown OR the instruction cannot be
+ * decoded (e.g., text page not present), then X86_BR_NONE is
+ * returned.
+ *
+ * While recording branches, some processors can report the "from"
+ * address to be that of an instruction preceding the actual branch
+ * when instruction fusion occurs. If fusion is expected, attempt to
+ * find the type of the first branch instruction within the next
+ * MAX_INSN_SIZE bytes and if found, provide the offset between the
+ * reported "from" address and the actual branch instruction address.
+ */
+static int get_branch_type(unsigned long from, unsigned long to, int abort,
+ bool fused, int *offset)
+{
+ struct insn insn;
+ void *addr;
+ int bytes_read, bytes_left, insn_offset;
+ int ret = X86_BR_NONE;
+ int to_plm, from_plm;
+ u8 buf[MAX_INSN_SIZE];
+ int is64 = 0;
+
+ /* make sure we initialize offset */
+ if (offset)
+ *offset = 0;
+
+ to_plm = kernel_ip(to) ? X86_BR_KERNEL : X86_BR_USER;
+ from_plm = kernel_ip(from) ? X86_BR_KERNEL : X86_BR_USER;
+
+ /*
+ * maybe zero if lbr did not fill up after a reset by the time
+ * we get a PMU interrupt
+ */
+ if (from == 0 || to == 0)
+ return X86_BR_NONE;
+
+ if (abort)
+ return X86_BR_ABORT | to_plm;
+
+ if (from_plm == X86_BR_USER) {
+ /*
+ * can happen if measuring at the user level only
+ * and we interrupt in a kernel thread, e.g., idle.
+ */
+ if (!current->mm)
+ return X86_BR_NONE;
+
+ /* may fail if text not present */
+ bytes_left = copy_from_user_nmi(buf, (void __user *)from,
+ MAX_INSN_SIZE);
+ bytes_read = MAX_INSN_SIZE - bytes_left;
+ if (!bytes_read)
+ return X86_BR_NONE;
+
+ addr = buf;
+ } else {
+ /*
+ * The LBR logs any address in the IP, even if the IP just
+ * faulted. This means userspace can control the from address.
+ * Ensure we don't blindly read any address by validating it is
+ * a known text address.
+ */
+ if (kernel_text_address(from)) {
+ addr = (void *)from;
+ /*
+ * Assume we can get the maximum possible size
+ * when grabbing kernel data. This is not
+ * _strictly_ true since we could possibly be
+ * executing up next to a memory hole, but
+ * it is very unlikely to be a problem.
+ */
+ bytes_read = MAX_INSN_SIZE;
+ } else {
+ return X86_BR_NONE;
+ }
+ }
+
+ /*
+ * decoder needs to know the ABI especially
+ * on 64-bit systems running 32-bit apps
+ */
+#ifdef CONFIG_X86_64
+ is64 = kernel_ip((unsigned long)addr) || any_64bit_mode(current_pt_regs());
+#endif
+ insn_init(&insn, addr, bytes_read, is64);
+ ret = decode_branch_type(&insn);
+ insn_offset = 0;
+
+ /* Check for the possibility of branch fusion */
+ while (fused && ret == X86_BR_NONE) {
+ /* Check for decoding errors */
+ if (insn_get_length(&insn) || !insn.length)
+ break;
+
+ insn_offset += insn.length;
+ bytes_read -= insn.length;
+ if (bytes_read < 0)
+ break;
+
+ insn_init(&insn, addr + insn_offset, bytes_read, is64);
+ ret = decode_branch_type(&insn);
+ }
+
+ if (offset)
+ *offset = insn_offset;
+
+ /*
+ * interrupts, traps, faults (and thus ring transition) may
+ * occur on any instructions. Thus, to classify them correctly,
+ * we need to first look at the from and to priv levels. If they
+ * are different and to is in the kernel, then it indicates
+ * a ring transition. If the from instruction is not a ring
+ * transition instr (syscall, systenter, int), then it means
+ * it was a irq, trap or fault.
+ *
+ * we have no way of detecting kernel to kernel faults.
+ */
+ if (from_plm == X86_BR_USER && to_plm == X86_BR_KERNEL
+ && ret != X86_BR_SYSCALL && ret != X86_BR_INT)
+ ret = X86_BR_IRQ;
+
+ /*
+ * branch priv level determined by target as
+ * is done by HW when LBR_SELECT is implemented
+ */
+ if (ret != X86_BR_NONE)
+ ret |= to_plm;
+
+ return ret;
+}
+
+int branch_type(unsigned long from, unsigned long to, int abort)
+{
+ return get_branch_type(from, to, abort, false, NULL);
+}
+
+int branch_type_fused(unsigned long from, unsigned long to, int abort,
+ int *offset)
+{
+ return get_branch_type(from, to, abort, true, offset);
+}
+
+#define X86_BR_TYPE_MAP_MAX 16
+
+static int branch_map[X86_BR_TYPE_MAP_MAX] = {
+ PERF_BR_CALL, /* X86_BR_CALL */
+ PERF_BR_RET, /* X86_BR_RET */
+ PERF_BR_SYSCALL, /* X86_BR_SYSCALL */
+ PERF_BR_SYSRET, /* X86_BR_SYSRET */
+ PERF_BR_UNKNOWN, /* X86_BR_INT */
+ PERF_BR_ERET, /* X86_BR_IRET */
+ PERF_BR_COND, /* X86_BR_JCC */
+ PERF_BR_UNCOND, /* X86_BR_JMP */
+ PERF_BR_IRQ, /* X86_BR_IRQ */
+ PERF_BR_IND_CALL, /* X86_BR_IND_CALL */
+ PERF_BR_UNKNOWN, /* X86_BR_ABORT */
+ PERF_BR_UNKNOWN, /* X86_BR_IN_TX */
+ PERF_BR_NO_TX, /* X86_BR_NO_TX */
+ PERF_BR_CALL, /* X86_BR_ZERO_CALL */
+ PERF_BR_UNKNOWN, /* X86_BR_CALL_STACK */
+ PERF_BR_IND, /* X86_BR_IND_JMP */
+};
+
+int common_branch_type(int type)
+{
+ int i;
+
+ type >>= 2; /* skip X86_BR_USER and X86_BR_KERNEL */
+
+ if (type) {
+ i = __ffs(type);
+ if (i < X86_BR_TYPE_MAP_MAX)
+ return branch_map[i];
+ }
+
+ return PERF_BR_UNKNOWN;
+}
diff --git a/arch/x86/events/zhaoxin/Makefile b/arch/x86/events/zhaoxin/Makefile
new file mode 100644
index 000000000000..642c1174d662
--- /dev/null
+++ b/arch/x86/events/zhaoxin/Makefile
@@ -0,0 +1,2 @@
+# SPDX-License-Identifier: GPL-2.0
+obj-y += core.o
diff --git a/arch/x86/events/zhaoxin/core.c b/arch/x86/events/zhaoxin/core.c
new file mode 100644
index 000000000000..3e9acdaeed1e
--- /dev/null
+++ b/arch/x86/events/zhaoxin/core.c
@@ -0,0 +1,619 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Zhaoxin PMU; like Intel Architectural PerfMon-v2
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/stddef.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/export.h>
+#include <linux/nmi.h>
+
+#include <asm/cpufeature.h>
+#include <asm/hardirq.h>
+#include <asm/apic.h>
+
+#include "../perf_event.h"
+
+/*
+ * Zhaoxin PerfMon, used on zxc and later.
+ */
+static u64 zx_pmon_event_map[PERF_COUNT_HW_MAX] __read_mostly = {
+
+ [PERF_COUNT_HW_CPU_CYCLES] = 0x0082,
+ [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0,
+ [PERF_COUNT_HW_CACHE_REFERENCES] = 0x0515,
+ [PERF_COUNT_HW_CACHE_MISSES] = 0x051a,
+ [PERF_COUNT_HW_BUS_CYCLES] = 0x0083,
+};
+
+static struct event_constraint zxc_event_constraints[] __read_mostly = {
+
+ FIXED_EVENT_CONSTRAINT(0x0082, 1), /* unhalted core clock cycles */
+ EVENT_CONSTRAINT_END
+};
+
+static struct event_constraint zxd_event_constraints[] __read_mostly = {
+
+ FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* retired instructions */
+ FIXED_EVENT_CONSTRAINT(0x0082, 1), /* unhalted core clock cycles */
+ FIXED_EVENT_CONSTRAINT(0x0083, 2), /* unhalted bus clock cycles */
+ EVENT_CONSTRAINT_END
+};
+
+static __initconst const u64 zxd_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+[C(L1D)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0042,
+ [C(RESULT_MISS)] = 0x0538,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x0043,
+ [C(RESULT_MISS)] = 0x0562,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+[C(L1I)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0300,
+ [C(RESULT_MISS)] = 0x0301,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x030a,
+ [C(RESULT_MISS)] = 0x030b,
+ },
+},
+[C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+[C(DTLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0042,
+ [C(RESULT_MISS)] = 0x052c,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x0043,
+ [C(RESULT_MISS)] = 0x0530,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0564,
+ [C(RESULT_MISS)] = 0x0565,
+ },
+},
+[C(ITLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x00c0,
+ [C(RESULT_MISS)] = 0x0534,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+[C(BPU)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0700,
+ [C(RESULT_MISS)] = 0x0709,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+[C(NODE)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+};
+
+static __initconst const u64 zxe_hw_cache_event_ids
+ [PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
+[C(L1D)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0568,
+ [C(RESULT_MISS)] = 0x054b,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x0669,
+ [C(RESULT_MISS)] = 0x0562,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+[C(L1I)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0300,
+ [C(RESULT_MISS)] = 0x0301,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x030a,
+ [C(RESULT_MISS)] = 0x030b,
+ },
+},
+[C(LL)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0,
+ [C(RESULT_MISS)] = 0x0,
+ },
+},
+[C(DTLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0568,
+ [C(RESULT_MISS)] = 0x052c,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = 0x0669,
+ [C(RESULT_MISS)] = 0x0530,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = 0x0564,
+ [C(RESULT_MISS)] = 0x0565,
+ },
+},
+[C(ITLB)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x00c0,
+ [C(RESULT_MISS)] = 0x0534,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+[C(BPU)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = 0x0028,
+ [C(RESULT_MISS)] = 0x0029,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+[C(NODE)] = {
+ [C(OP_READ)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_WRITE)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+ [C(OP_PREFETCH)] = {
+ [C(RESULT_ACCESS)] = -1,
+ [C(RESULT_MISS)] = -1,
+ },
+},
+};
+
+static void zhaoxin_pmu_disable_all(void)
+{
+ wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0);
+}
+
+static void zhaoxin_pmu_enable_all(int added)
+{
+ wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, x86_pmu.intel_ctrl);
+}
+
+static inline u64 zhaoxin_pmu_get_status(void)
+{
+ u64 status;
+
+ rdmsrl(MSR_CORE_PERF_GLOBAL_STATUS, status);
+
+ return status;
+}
+
+static inline void zhaoxin_pmu_ack_status(u64 ack)
+{
+ wrmsrl(MSR_CORE_PERF_GLOBAL_OVF_CTRL, ack);
+}
+
+static inline void zxc_pmu_ack_status(u64 ack)
+{
+ /*
+ * ZXC needs global control enabled in order to clear status bits.
+ */
+ zhaoxin_pmu_enable_all(0);
+ zhaoxin_pmu_ack_status(ack);
+ zhaoxin_pmu_disable_all();
+}
+
+static void zhaoxin_pmu_disable_fixed(struct hw_perf_event *hwc)
+{
+ int idx = hwc->idx - INTEL_PMC_IDX_FIXED;
+ u64 ctrl_val, mask;
+
+ mask = 0xfULL << (idx * 4);
+
+ rdmsrl(hwc->config_base, ctrl_val);
+ ctrl_val &= ~mask;
+ wrmsrl(hwc->config_base, ctrl_val);
+}
+
+static void zhaoxin_pmu_disable_event(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) {
+ zhaoxin_pmu_disable_fixed(hwc);
+ return;
+ }
+
+ x86_pmu_disable_event(event);
+}
+
+static void zhaoxin_pmu_enable_fixed(struct hw_perf_event *hwc)
+{
+ int idx = hwc->idx - INTEL_PMC_IDX_FIXED;
+ u64 ctrl_val, bits, mask;
+
+ /*
+ * Enable IRQ generation (0x8),
+ * and enable ring-3 counting (0x2) and ring-0 counting (0x1)
+ * if requested:
+ */
+ bits = 0x8ULL;
+ if (hwc->config & ARCH_PERFMON_EVENTSEL_USR)
+ bits |= 0x2;
+ if (hwc->config & ARCH_PERFMON_EVENTSEL_OS)
+ bits |= 0x1;
+
+ bits <<= (idx * 4);
+ mask = 0xfULL << (idx * 4);
+
+ rdmsrl(hwc->config_base, ctrl_val);
+ ctrl_val &= ~mask;
+ ctrl_val |= bits;
+ wrmsrl(hwc->config_base, ctrl_val);
+}
+
+static void zhaoxin_pmu_enable_event(struct perf_event *event)
+{
+ struct hw_perf_event *hwc = &event->hw;
+
+ if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) {
+ zhaoxin_pmu_enable_fixed(hwc);
+ return;
+ }
+
+ __x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE);
+}
+
+/*
+ * This handler is triggered by the local APIC, so the APIC IRQ handling
+ * rules apply:
+ */
+static int zhaoxin_pmu_handle_irq(struct pt_regs *regs)
+{
+ struct perf_sample_data data;
+ struct cpu_hw_events *cpuc;
+ int handled = 0;
+ u64 status;
+ int bit;
+
+ cpuc = this_cpu_ptr(&cpu_hw_events);
+ apic_write(APIC_LVTPC, APIC_DM_NMI);
+ zhaoxin_pmu_disable_all();
+ status = zhaoxin_pmu_get_status();
+ if (!status)
+ goto done;
+
+again:
+ if (x86_pmu.enabled_ack)
+ zxc_pmu_ack_status(status);
+ else
+ zhaoxin_pmu_ack_status(status);
+
+ inc_irq_stat(apic_perf_irqs);
+
+ /*
+ * CondChgd bit 63 doesn't mean any overflow status. Ignore
+ * and clear the bit.
+ */
+ if (__test_and_clear_bit(63, (unsigned long *)&status)) {
+ if (!status)
+ goto done;
+ }
+
+ for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) {
+ struct perf_event *event = cpuc->events[bit];
+
+ handled++;
+
+ if (!test_bit(bit, cpuc->active_mask))
+ continue;
+
+ x86_perf_event_update(event);
+ perf_sample_data_init(&data, 0, event->hw.last_period);
+
+ if (!x86_perf_event_set_period(event))
+ continue;
+
+ if (perf_event_overflow(event, &data, regs))
+ x86_pmu_stop(event, 0);
+ }
+
+ /*
+ * Repeat if there is more work to be done:
+ */
+ status = zhaoxin_pmu_get_status();
+ if (status)
+ goto again;
+
+done:
+ zhaoxin_pmu_enable_all(0);
+ return handled;
+}
+
+static u64 zhaoxin_pmu_event_map(int hw_event)
+{
+ return zx_pmon_event_map[hw_event];
+}
+
+static struct event_constraint *
+zhaoxin_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
+ struct perf_event *event)
+{
+ struct event_constraint *c;
+
+ if (x86_pmu.event_constraints) {
+ for_each_event_constraint(c, x86_pmu.event_constraints) {
+ if ((event->hw.config & c->cmask) == c->code)
+ return c;
+ }
+ }
+
+ return &unconstrained;
+}
+
+PMU_FORMAT_ATTR(event, "config:0-7");
+PMU_FORMAT_ATTR(umask, "config:8-15");
+PMU_FORMAT_ATTR(edge, "config:18");
+PMU_FORMAT_ATTR(inv, "config:23");
+PMU_FORMAT_ATTR(cmask, "config:24-31");
+
+static struct attribute *zx_arch_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_cmask.attr,
+ NULL,
+};
+
+static ssize_t zhaoxin_event_sysfs_show(char *page, u64 config)
+{
+ u64 event = (config & ARCH_PERFMON_EVENTSEL_EVENT);
+
+ return x86_event_sysfs_show(page, config, event);
+}
+
+static const struct x86_pmu zhaoxin_pmu __initconst = {
+ .name = "zhaoxin",
+ .handle_irq = zhaoxin_pmu_handle_irq,
+ .disable_all = zhaoxin_pmu_disable_all,
+ .enable_all = zhaoxin_pmu_enable_all,
+ .enable = zhaoxin_pmu_enable_event,
+ .disable = zhaoxin_pmu_disable_event,
+ .hw_config = x86_pmu_hw_config,
+ .schedule_events = x86_schedule_events,
+ .eventsel = MSR_ARCH_PERFMON_EVENTSEL0,
+ .perfctr = MSR_ARCH_PERFMON_PERFCTR0,
+ .event_map = zhaoxin_pmu_event_map,
+ .max_events = ARRAY_SIZE(zx_pmon_event_map),
+ .apic = 1,
+ /*
+ * For zxd/zxe, read/write operation for PMCx MSR is 48 bits.
+ */
+ .max_period = (1ULL << 47) - 1,
+ .get_event_constraints = zhaoxin_get_event_constraints,
+
+ .format_attrs = zx_arch_formats_attr,
+ .events_sysfs_show = zhaoxin_event_sysfs_show,
+};
+
+static const struct { int id; char *name; } zx_arch_events_map[] __initconst = {
+ { PERF_COUNT_HW_CPU_CYCLES, "cpu cycles" },
+ { PERF_COUNT_HW_INSTRUCTIONS, "instructions" },
+ { PERF_COUNT_HW_BUS_CYCLES, "bus cycles" },
+ { PERF_COUNT_HW_CACHE_REFERENCES, "cache references" },
+ { PERF_COUNT_HW_CACHE_MISSES, "cache misses" },
+ { PERF_COUNT_HW_BRANCH_INSTRUCTIONS, "branch instructions" },
+ { PERF_COUNT_HW_BRANCH_MISSES, "branch misses" },
+};
+
+static __init void zhaoxin_arch_events_quirk(void)
+{
+ int bit;
+
+ /* disable event that reported as not present by cpuid */
+ for_each_set_bit(bit, x86_pmu.events_mask, ARRAY_SIZE(zx_arch_events_map)) {
+ zx_pmon_event_map[zx_arch_events_map[bit].id] = 0;
+ pr_warn("CPUID marked event: \'%s\' unavailable\n",
+ zx_arch_events_map[bit].name);
+ }
+}
+
+__init int zhaoxin_pmu_init(void)
+{
+ union cpuid10_edx edx;
+ union cpuid10_eax eax;
+ union cpuid10_ebx ebx;
+ struct event_constraint *c;
+ unsigned int unused;
+ int version;
+
+ pr_info("Welcome to zhaoxin pmu!\n");
+
+ /*
+ * Check whether the Architectural PerfMon supports
+ * hw_event or not.
+ */
+ cpuid(10, &eax.full, &ebx.full, &unused, &edx.full);
+
+ if (eax.split.mask_length < ARCH_PERFMON_EVENTS_COUNT - 1)
+ return -ENODEV;
+
+ version = eax.split.version_id;
+ if (version != 2)
+ return -ENODEV;
+
+ x86_pmu = zhaoxin_pmu;
+ pr_info("Version check pass!\n");
+
+ x86_pmu.version = version;
+ x86_pmu.num_counters = eax.split.num_counters;
+ x86_pmu.cntval_bits = eax.split.bit_width;
+ x86_pmu.cntval_mask = (1ULL << eax.split.bit_width) - 1;
+ x86_pmu.events_maskl = ebx.full;
+ x86_pmu.events_mask_len = eax.split.mask_length;
+
+ x86_pmu.num_counters_fixed = edx.split.num_counters_fixed;
+ x86_add_quirk(zhaoxin_arch_events_quirk);
+
+ switch (boot_cpu_data.x86) {
+ case 0x06:
+ /*
+ * Support Zhaoxin CPU from ZXC series, exclude Nano series through FMS.
+ * Nano FMS: Family=6, Model=F, Stepping=[0-A][C-D]
+ * ZXC FMS: Family=6, Model=F, Stepping=E-F OR Family=6, Model=0x19, Stepping=0-3
+ */
+ if ((boot_cpu_data.x86_model == 0x0f && boot_cpu_data.x86_stepping >= 0x0e) ||
+ boot_cpu_data.x86_model == 0x19) {
+
+ x86_pmu.max_period = x86_pmu.cntval_mask >> 1;
+
+ /* Clearing status works only if the global control is enable on zxc. */
+ x86_pmu.enabled_ack = 1;
+
+ x86_pmu.event_constraints = zxc_event_constraints;
+ zx_pmon_event_map[PERF_COUNT_HW_INSTRUCTIONS] = 0;
+ zx_pmon_event_map[PERF_COUNT_HW_CACHE_REFERENCES] = 0;
+ zx_pmon_event_map[PERF_COUNT_HW_CACHE_MISSES] = 0;
+ zx_pmon_event_map[PERF_COUNT_HW_BUS_CYCLES] = 0;
+
+ pr_cont("ZXC events, ");
+ break;
+ }
+ return -ENODEV;
+
+ case 0x07:
+ zx_pmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] =
+ X86_CONFIG(.event = 0x01, .umask = 0x01, .inv = 0x01, .cmask = 0x01);
+
+ zx_pmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] =
+ X86_CONFIG(.event = 0x0f, .umask = 0x04, .inv = 0, .cmask = 0);
+
+ switch (boot_cpu_data.x86_model) {
+ case 0x1b:
+ memcpy(hw_cache_event_ids, zxd_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+
+ x86_pmu.event_constraints = zxd_event_constraints;
+
+ zx_pmon_event_map[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x0700;
+ zx_pmon_event_map[PERF_COUNT_HW_BRANCH_MISSES] = 0x0709;
+
+ pr_cont("ZXD events, ");
+ break;
+ case 0x3b:
+ memcpy(hw_cache_event_ids, zxe_hw_cache_event_ids,
+ sizeof(hw_cache_event_ids));
+
+ x86_pmu.event_constraints = zxd_event_constraints;
+
+ zx_pmon_event_map[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x0028;
+ zx_pmon_event_map[PERF_COUNT_HW_BRANCH_MISSES] = 0x0029;
+
+ pr_cont("ZXE events, ");
+ break;
+ default:
+ return -ENODEV;
+ }
+ break;
+
+ default:
+ return -ENODEV;
+ }
+
+ x86_pmu.intel_ctrl = (1 << (x86_pmu.num_counters)) - 1;
+ x86_pmu.intel_ctrl |= ((1LL << x86_pmu.num_counters_fixed)-1) << INTEL_PMC_IDX_FIXED;
+
+ if (x86_pmu.event_constraints) {
+ for_each_event_constraint(c, x86_pmu.event_constraints) {
+ c->idxmsk64 |= (1ULL << x86_pmu.num_counters) - 1;
+ c->weight += x86_pmu.num_counters;
+ }
+ }
+
+ return 0;
+}
+
diff --git a/arch/x86/hyperv/Makefile b/arch/x86/hyperv/Makefile
new file mode 100644
index 000000000000..3a1548054b48
--- /dev/null
+++ b/arch/x86/hyperv/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-y := hv_init.o mmu.o nested.o irqdomain.o ivm.o
+obj-$(CONFIG_X86_64) += hv_apic.o hv_proc.o
+obj-$(CONFIG_HYPERV_VTL_MODE) += hv_vtl.o
+
+ifdef CONFIG_X86_64
+obj-$(CONFIG_PARAVIRT_SPINLOCKS) += hv_spinlock.o
+endif
diff --git a/arch/x86/hyperv/hv_apic.c b/arch/x86/hyperv/hv_apic.c
new file mode 100644
index 000000000000..1fbda2f94184
--- /dev/null
+++ b/arch/x86/hyperv/hv_apic.c
@@ -0,0 +1,321 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Hyper-V specific APIC code.
+ *
+ * Copyright (C) 2018, Microsoft, Inc.
+ *
+ * Author : K. Y. Srinivasan <kys@microsoft.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT. See the GNU General Public License for more
+ * details.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
+#include <linux/clockchips.h>
+#include <linux/hyperv.h>
+#include <linux/slab.h>
+#include <linux/cpuhotplug.h>
+#include <asm/hypervisor.h>
+#include <asm/mshyperv.h>
+#include <asm/apic.h>
+
+#include <asm/trace/hyperv.h>
+
+static struct apic orig_apic;
+
+static u64 hv_apic_icr_read(void)
+{
+ u64 reg_val;
+
+ rdmsrl(HV_X64_MSR_ICR, reg_val);
+ return reg_val;
+}
+
+static void hv_apic_icr_write(u32 low, u32 id)
+{
+ u64 reg_val;
+
+ reg_val = SET_XAPIC_DEST_FIELD(id);
+ reg_val = reg_val << 32;
+ reg_val |= low;
+
+ wrmsrl(HV_X64_MSR_ICR, reg_val);
+}
+
+static u32 hv_apic_read(u32 reg)
+{
+ u32 reg_val, hi;
+
+ switch (reg) {
+ case APIC_EOI:
+ rdmsr(HV_X64_MSR_EOI, reg_val, hi);
+ (void)hi;
+ return reg_val;
+ case APIC_TASKPRI:
+ rdmsr(HV_X64_MSR_TPR, reg_val, hi);
+ (void)hi;
+ return reg_val;
+
+ default:
+ return native_apic_mem_read(reg);
+ }
+}
+
+static void hv_apic_write(u32 reg, u32 val)
+{
+ switch (reg) {
+ case APIC_EOI:
+ wrmsr(HV_X64_MSR_EOI, val, 0);
+ break;
+ case APIC_TASKPRI:
+ wrmsr(HV_X64_MSR_TPR, val, 0);
+ break;
+ default:
+ native_apic_mem_write(reg, val);
+ }
+}
+
+static void hv_apic_eoi_write(u32 reg, u32 val)
+{
+ struct hv_vp_assist_page *hvp = hv_vp_assist_page[smp_processor_id()];
+
+ if (hvp && (xchg(&hvp->apic_assist, 0) & 0x1))
+ return;
+
+ wrmsr(HV_X64_MSR_EOI, val, 0);
+}
+
+static bool cpu_is_self(int cpu)
+{
+ return cpu == smp_processor_id();
+}
+
+/*
+ * IPI implementation on Hyper-V.
+ */
+static bool __send_ipi_mask_ex(const struct cpumask *mask, int vector,
+ bool exclude_self)
+{
+ struct hv_send_ipi_ex **arg;
+ struct hv_send_ipi_ex *ipi_arg;
+ unsigned long flags;
+ int nr_bank = 0;
+ u64 status = HV_STATUS_INVALID_PARAMETER;
+
+ if (!(ms_hyperv.hints & HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED))
+ return false;
+
+ local_irq_save(flags);
+ arg = (struct hv_send_ipi_ex **)this_cpu_ptr(hyperv_pcpu_input_arg);
+
+ ipi_arg = *arg;
+ if (unlikely(!ipi_arg))
+ goto ipi_mask_ex_done;
+
+ ipi_arg->vector = vector;
+ ipi_arg->reserved = 0;
+ ipi_arg->vp_set.valid_bank_mask = 0;
+
+ /*
+ * Use HV_GENERIC_SET_ALL and avoid converting cpumask to VP_SET
+ * when the IPI is sent to all currently present CPUs.
+ */
+ if (!cpumask_equal(mask, cpu_present_mask) || exclude_self) {
+ ipi_arg->vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+
+ nr_bank = cpumask_to_vpset_skip(&(ipi_arg->vp_set), mask,
+ exclude_self ? cpu_is_self : NULL);
+
+ /*
+ * 'nr_bank <= 0' means some CPUs in cpumask can't be
+ * represented in VP_SET. Return an error and fall back to
+ * native (architectural) method of sending IPIs.
+ */
+ if (nr_bank <= 0)
+ goto ipi_mask_ex_done;
+ } else {
+ ipi_arg->vp_set.format = HV_GENERIC_SET_ALL;
+ }
+
+ status = hv_do_rep_hypercall(HVCALL_SEND_IPI_EX, 0, nr_bank,
+ ipi_arg, NULL);
+
+ipi_mask_ex_done:
+ local_irq_restore(flags);
+ return hv_result_success(status);
+}
+
+static bool __send_ipi_mask(const struct cpumask *mask, int vector,
+ bool exclude_self)
+{
+ int cur_cpu, vcpu, this_cpu = smp_processor_id();
+ struct hv_send_ipi ipi_arg;
+ u64 status;
+ unsigned int weight;
+
+ trace_hyperv_send_ipi_mask(mask, vector);
+
+ weight = cpumask_weight(mask);
+
+ /*
+ * Do nothing if
+ * 1. the mask is empty
+ * 2. the mask only contains self when exclude_self is true
+ */
+ if (weight == 0 ||
+ (exclude_self && weight == 1 && cpumask_test_cpu(this_cpu, mask)))
+ return true;
+
+ if (!hv_hypercall_pg)
+ return false;
+
+ if ((vector < HV_IPI_LOW_VECTOR) || (vector > HV_IPI_HIGH_VECTOR))
+ return false;
+
+ /*
+ * From the supplied CPU set we need to figure out if we can get away
+ * with cheaper HVCALL_SEND_IPI hypercall. This is possible when the
+ * highest VP number in the set is < 64. As VP numbers are usually in
+ * ascending order and match Linux CPU ids, here is an optimization:
+ * we check the VP number for the highest bit in the supplied set first
+ * so we can quickly find out if using HVCALL_SEND_IPI_EX hypercall is
+ * a must. We will also check all VP numbers when walking the supplied
+ * CPU set to remain correct in all cases.
+ */
+ if (hv_cpu_number_to_vp_number(cpumask_last(mask)) >= 64)
+ goto do_ex_hypercall;
+
+ ipi_arg.vector = vector;
+ ipi_arg.cpu_mask = 0;
+
+ for_each_cpu(cur_cpu, mask) {
+ if (exclude_self && cur_cpu == this_cpu)
+ continue;
+ vcpu = hv_cpu_number_to_vp_number(cur_cpu);
+ if (vcpu == VP_INVAL)
+ return false;
+
+ /*
+ * This particular version of the IPI hypercall can
+ * only target upto 64 CPUs.
+ */
+ if (vcpu >= 64)
+ goto do_ex_hypercall;
+
+ __set_bit(vcpu, (unsigned long *)&ipi_arg.cpu_mask);
+ }
+
+ status = hv_do_fast_hypercall16(HVCALL_SEND_IPI, ipi_arg.vector,
+ ipi_arg.cpu_mask);
+ return hv_result_success(status);
+
+do_ex_hypercall:
+ return __send_ipi_mask_ex(mask, vector, exclude_self);
+}
+
+static bool __send_ipi_one(int cpu, int vector)
+{
+ int vp = hv_cpu_number_to_vp_number(cpu);
+ u64 status;
+
+ trace_hyperv_send_ipi_one(cpu, vector);
+
+ if (!hv_hypercall_pg || (vp == VP_INVAL))
+ return false;
+
+ if ((vector < HV_IPI_LOW_VECTOR) || (vector > HV_IPI_HIGH_VECTOR))
+ return false;
+
+ if (vp >= 64)
+ return __send_ipi_mask_ex(cpumask_of(cpu), vector, false);
+
+ status = hv_do_fast_hypercall16(HVCALL_SEND_IPI, vector, BIT_ULL(vp));
+ return hv_result_success(status);
+}
+
+static void hv_send_ipi(int cpu, int vector)
+{
+ if (!__send_ipi_one(cpu, vector))
+ orig_apic.send_IPI(cpu, vector);
+}
+
+static void hv_send_ipi_mask(const struct cpumask *mask, int vector)
+{
+ if (!__send_ipi_mask(mask, vector, false))
+ orig_apic.send_IPI_mask(mask, vector);
+}
+
+static void hv_send_ipi_mask_allbutself(const struct cpumask *mask, int vector)
+{
+ if (!__send_ipi_mask(mask, vector, true))
+ orig_apic.send_IPI_mask_allbutself(mask, vector);
+}
+
+static void hv_send_ipi_allbutself(int vector)
+{
+ hv_send_ipi_mask_allbutself(cpu_online_mask, vector);
+}
+
+static void hv_send_ipi_all(int vector)
+{
+ if (!__send_ipi_mask(cpu_online_mask, vector, false))
+ orig_apic.send_IPI_all(vector);
+}
+
+static void hv_send_ipi_self(int vector)
+{
+ if (!__send_ipi_one(smp_processor_id(), vector))
+ orig_apic.send_IPI_self(vector);
+}
+
+void __init hv_apic_init(void)
+{
+ if (ms_hyperv.hints & HV_X64_CLUSTER_IPI_RECOMMENDED) {
+ pr_info("Hyper-V: Using IPI hypercalls\n");
+ /*
+ * Set the IPI entry points.
+ */
+ orig_apic = *apic;
+
+ apic->send_IPI = hv_send_ipi;
+ apic->send_IPI_mask = hv_send_ipi_mask;
+ apic->send_IPI_mask_allbutself = hv_send_ipi_mask_allbutself;
+ apic->send_IPI_allbutself = hv_send_ipi_allbutself;
+ apic->send_IPI_all = hv_send_ipi_all;
+ apic->send_IPI_self = hv_send_ipi_self;
+ }
+
+ if (ms_hyperv.hints & HV_X64_APIC_ACCESS_RECOMMENDED) {
+ pr_info("Hyper-V: Using enlightened APIC (%s mode)",
+ x2apic_enabled() ? "x2apic" : "xapic");
+ /*
+ * When in x2apic mode, don't use the Hyper-V specific APIC
+ * accessors since the field layout in the ICR register is
+ * different in x2apic mode. Furthermore, the architectural
+ * x2apic MSRs function just as well as the Hyper-V
+ * synthetic APIC MSRs, so there's no benefit in having
+ * separate Hyper-V accessors for x2apic mode. The only
+ * exception is hv_apic_eoi_write, because it benefits from
+ * lazy EOI when available, but the same accessor works for
+ * both xapic and x2apic because the field layout is the same.
+ */
+ apic_set_eoi_write(hv_apic_eoi_write);
+ if (!x2apic_enabled()) {
+ apic->read = hv_apic_read;
+ apic->write = hv_apic_write;
+ apic->icr_write = hv_apic_icr_write;
+ apic->icr_read = hv_apic_icr_read;
+ }
+ }
+}
diff --git a/arch/x86/hyperv/hv_init.c b/arch/x86/hyperv/hv_init.c
new file mode 100644
index 000000000000..a5f9474f08e1
--- /dev/null
+++ b/arch/x86/hyperv/hv_init.c
@@ -0,0 +1,606 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * X86 specific Hyper-V initialization code.
+ *
+ * Copyright (C) 2016, Microsoft, Inc.
+ *
+ * Author : K. Y. Srinivasan <kys@microsoft.com>
+ */
+
+#include <linux/efi.h>
+#include <linux/types.h>
+#include <linux/bitfield.h>
+#include <linux/io.h>
+#include <asm/apic.h>
+#include <asm/desc.h>
+#include <asm/sev.h>
+#include <asm/hypervisor.h>
+#include <asm/hyperv-tlfs.h>
+#include <asm/mshyperv.h>
+#include <asm/idtentry.h>
+#include <linux/kexec.h>
+#include <linux/version.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
+#include <linux/hyperv.h>
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/cpuhotplug.h>
+#include <linux/syscore_ops.h>
+#include <clocksource/hyperv_timer.h>
+#include <linux/highmem.h>
+
+int hyperv_init_cpuhp;
+u64 hv_current_partition_id = ~0ull;
+EXPORT_SYMBOL_GPL(hv_current_partition_id);
+
+void *hv_hypercall_pg;
+EXPORT_SYMBOL_GPL(hv_hypercall_pg);
+
+union hv_ghcb * __percpu *hv_ghcb_pg;
+
+/* Storage to save the hypercall page temporarily for hibernation */
+static void *hv_hypercall_pg_saved;
+
+struct hv_vp_assist_page **hv_vp_assist_page;
+EXPORT_SYMBOL_GPL(hv_vp_assist_page);
+
+static int hyperv_init_ghcb(void)
+{
+ u64 ghcb_gpa;
+ void *ghcb_va;
+ void **ghcb_base;
+
+ if (!hv_isolation_type_snp())
+ return 0;
+
+ if (!hv_ghcb_pg)
+ return -EINVAL;
+
+ /*
+ * GHCB page is allocated by paravisor. The address
+ * returned by MSR_AMD64_SEV_ES_GHCB is above shared
+ * memory boundary and map it here.
+ */
+ rdmsrl(MSR_AMD64_SEV_ES_GHCB, ghcb_gpa);
+
+ /* Mask out vTOM bit. ioremap_cache() maps decrypted */
+ ghcb_gpa &= ~ms_hyperv.shared_gpa_boundary;
+ ghcb_va = (void *)ioremap_cache(ghcb_gpa, HV_HYP_PAGE_SIZE);
+ if (!ghcb_va)
+ return -ENOMEM;
+
+ ghcb_base = (void **)this_cpu_ptr(hv_ghcb_pg);
+ *ghcb_base = ghcb_va;
+
+ return 0;
+}
+
+static int hv_cpu_init(unsigned int cpu)
+{
+ union hv_vp_assist_msr_contents msr = { 0 };
+ struct hv_vp_assist_page **hvp = &hv_vp_assist_page[cpu];
+ int ret;
+
+ ret = hv_common_cpu_init(cpu);
+ if (ret)
+ return ret;
+
+ if (!hv_vp_assist_page)
+ return 0;
+
+ if (hv_root_partition) {
+ /*
+ * For root partition we get the hypervisor provided VP assist
+ * page, instead of allocating a new page.
+ */
+ rdmsrl(HV_X64_MSR_VP_ASSIST_PAGE, msr.as_uint64);
+ *hvp = memremap(msr.pfn << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT,
+ PAGE_SIZE, MEMREMAP_WB);
+ } else {
+ /*
+ * The VP assist page is an "overlay" page (see Hyper-V TLFS's
+ * Section 5.2.1 "GPA Overlay Pages"). Here it must be zeroed
+ * out to make sure we always write the EOI MSR in
+ * hv_apic_eoi_write() *after* the EOI optimization is disabled
+ * in hv_cpu_die(), otherwise a CPU may not be stopped in the
+ * case of CPU offlining and the VM will hang.
+ */
+ if (!*hvp)
+ *hvp = __vmalloc(PAGE_SIZE, GFP_KERNEL | __GFP_ZERO);
+ if (*hvp)
+ msr.pfn = vmalloc_to_pfn(*hvp);
+
+ }
+ if (!WARN_ON(!(*hvp))) {
+ msr.enable = 1;
+ wrmsrl(HV_X64_MSR_VP_ASSIST_PAGE, msr.as_uint64);
+ }
+
+ return hyperv_init_ghcb();
+}
+
+static void (*hv_reenlightenment_cb)(void);
+
+static void hv_reenlightenment_notify(struct work_struct *dummy)
+{
+ struct hv_tsc_emulation_status emu_status;
+
+ rdmsrl(HV_X64_MSR_TSC_EMULATION_STATUS, *(u64 *)&emu_status);
+
+ /* Don't issue the callback if TSC accesses are not emulated */
+ if (hv_reenlightenment_cb && emu_status.inprogress)
+ hv_reenlightenment_cb();
+}
+static DECLARE_DELAYED_WORK(hv_reenlightenment_work, hv_reenlightenment_notify);
+
+void hyperv_stop_tsc_emulation(void)
+{
+ u64 freq;
+ struct hv_tsc_emulation_status emu_status;
+
+ rdmsrl(HV_X64_MSR_TSC_EMULATION_STATUS, *(u64 *)&emu_status);
+ emu_status.inprogress = 0;
+ wrmsrl(HV_X64_MSR_TSC_EMULATION_STATUS, *(u64 *)&emu_status);
+
+ rdmsrl(HV_X64_MSR_TSC_FREQUENCY, freq);
+ tsc_khz = div64_u64(freq, 1000);
+}
+EXPORT_SYMBOL_GPL(hyperv_stop_tsc_emulation);
+
+static inline bool hv_reenlightenment_available(void)
+{
+ /*
+ * Check for required features and privileges to make TSC frequency
+ * change notifications work.
+ */
+ return ms_hyperv.features & HV_ACCESS_FREQUENCY_MSRS &&
+ ms_hyperv.misc_features & HV_FEATURE_FREQUENCY_MSRS_AVAILABLE &&
+ ms_hyperv.features & HV_ACCESS_REENLIGHTENMENT;
+}
+
+DEFINE_IDTENTRY_SYSVEC(sysvec_hyperv_reenlightenment)
+{
+ ack_APIC_irq();
+ inc_irq_stat(irq_hv_reenlightenment_count);
+ schedule_delayed_work(&hv_reenlightenment_work, HZ/10);
+}
+
+void set_hv_tscchange_cb(void (*cb)(void))
+{
+ struct hv_reenlightenment_control re_ctrl = {
+ .vector = HYPERV_REENLIGHTENMENT_VECTOR,
+ .enabled = 1,
+ };
+ struct hv_tsc_emulation_control emu_ctrl = {.enabled = 1};
+
+ if (!hv_reenlightenment_available()) {
+ pr_warn("Hyper-V: reenlightenment support is unavailable\n");
+ return;
+ }
+
+ if (!hv_vp_index)
+ return;
+
+ hv_reenlightenment_cb = cb;
+
+ /* Make sure callback is registered before we write to MSRs */
+ wmb();
+
+ re_ctrl.target_vp = hv_vp_index[get_cpu()];
+
+ wrmsrl(HV_X64_MSR_REENLIGHTENMENT_CONTROL, *((u64 *)&re_ctrl));
+ wrmsrl(HV_X64_MSR_TSC_EMULATION_CONTROL, *((u64 *)&emu_ctrl));
+
+ put_cpu();
+}
+EXPORT_SYMBOL_GPL(set_hv_tscchange_cb);
+
+void clear_hv_tscchange_cb(void)
+{
+ struct hv_reenlightenment_control re_ctrl;
+
+ if (!hv_reenlightenment_available())
+ return;
+
+ rdmsrl(HV_X64_MSR_REENLIGHTENMENT_CONTROL, *(u64 *)&re_ctrl);
+ re_ctrl.enabled = 0;
+ wrmsrl(HV_X64_MSR_REENLIGHTENMENT_CONTROL, *(u64 *)&re_ctrl);
+
+ hv_reenlightenment_cb = NULL;
+}
+EXPORT_SYMBOL_GPL(clear_hv_tscchange_cb);
+
+static int hv_cpu_die(unsigned int cpu)
+{
+ struct hv_reenlightenment_control re_ctrl;
+ unsigned int new_cpu;
+ void **ghcb_va;
+
+ if (hv_ghcb_pg) {
+ ghcb_va = (void **)this_cpu_ptr(hv_ghcb_pg);
+ if (*ghcb_va)
+ iounmap(*ghcb_va);
+ *ghcb_va = NULL;
+ }
+
+ hv_common_cpu_die(cpu);
+
+ if (hv_vp_assist_page && hv_vp_assist_page[cpu]) {
+ union hv_vp_assist_msr_contents msr = { 0 };
+ if (hv_root_partition) {
+ /*
+ * For root partition the VP assist page is mapped to
+ * hypervisor provided page, and thus we unmap the
+ * page here and nullify it, so that in future we have
+ * correct page address mapped in hv_cpu_init.
+ */
+ memunmap(hv_vp_assist_page[cpu]);
+ hv_vp_assist_page[cpu] = NULL;
+ rdmsrl(HV_X64_MSR_VP_ASSIST_PAGE, msr.as_uint64);
+ msr.enable = 0;
+ }
+ wrmsrl(HV_X64_MSR_VP_ASSIST_PAGE, msr.as_uint64);
+ }
+
+ if (hv_reenlightenment_cb == NULL)
+ return 0;
+
+ rdmsrl(HV_X64_MSR_REENLIGHTENMENT_CONTROL, *((u64 *)&re_ctrl));
+ if (re_ctrl.target_vp == hv_vp_index[cpu]) {
+ /*
+ * Reassign reenlightenment notifications to some other online
+ * CPU or just disable the feature if there are no online CPUs
+ * left (happens on hibernation).
+ */
+ new_cpu = cpumask_any_but(cpu_online_mask, cpu);
+
+ if (new_cpu < nr_cpu_ids)
+ re_ctrl.target_vp = hv_vp_index[new_cpu];
+ else
+ re_ctrl.enabled = 0;
+
+ wrmsrl(HV_X64_MSR_REENLIGHTENMENT_CONTROL, *((u64 *)&re_ctrl));
+ }
+
+ return 0;
+}
+
+static int __init hv_pci_init(void)
+{
+ int gen2vm = efi_enabled(EFI_BOOT);
+
+ /*
+ * For Generation-2 VM, we exit from pci_arch_init() by returning 0.
+ * The purpose is to suppress the harmless warning:
+ * "PCI: Fatal: No config space access function found"
+ */
+ if (gen2vm)
+ return 0;
+
+ /* For Generation-1 VM, we'll proceed in pci_arch_init(). */
+ return 1;
+}
+
+static int hv_suspend(void)
+{
+ union hv_x64_msr_hypercall_contents hypercall_msr;
+ int ret;
+
+ if (hv_root_partition)
+ return -EPERM;
+
+ /*
+ * Reset the hypercall page as it is going to be invalidated
+ * across hibernation. Setting hv_hypercall_pg to NULL ensures
+ * that any subsequent hypercall operation fails safely instead of
+ * crashing due to an access of an invalid page. The hypercall page
+ * pointer is restored on resume.
+ */
+ hv_hypercall_pg_saved = hv_hypercall_pg;
+ hv_hypercall_pg = NULL;
+
+ /* Disable the hypercall page in the hypervisor */
+ rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+ hypercall_msr.enable = 0;
+ wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+
+ ret = hv_cpu_die(0);
+ return ret;
+}
+
+static void hv_resume(void)
+{
+ union hv_x64_msr_hypercall_contents hypercall_msr;
+ int ret;
+
+ ret = hv_cpu_init(0);
+ WARN_ON(ret);
+
+ /* Re-enable the hypercall page */
+ rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+ hypercall_msr.enable = 1;
+ hypercall_msr.guest_physical_address =
+ vmalloc_to_pfn(hv_hypercall_pg_saved);
+ wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+
+ hv_hypercall_pg = hv_hypercall_pg_saved;
+ hv_hypercall_pg_saved = NULL;
+
+ /*
+ * Reenlightenment notifications are disabled by hv_cpu_die(0),
+ * reenable them here if hv_reenlightenment_cb was previously set.
+ */
+ if (hv_reenlightenment_cb)
+ set_hv_tscchange_cb(hv_reenlightenment_cb);
+}
+
+/* Note: when the ops are called, only CPU0 is online and IRQs are disabled. */
+static struct syscore_ops hv_syscore_ops = {
+ .suspend = hv_suspend,
+ .resume = hv_resume,
+};
+
+static void (* __initdata old_setup_percpu_clockev)(void);
+
+static void __init hv_stimer_setup_percpu_clockev(void)
+{
+ /*
+ * Ignore any errors in setting up stimer clockevents
+ * as we can run with the LAPIC timer as a fallback.
+ */
+ (void)hv_stimer_alloc(false);
+
+ /*
+ * Still register the LAPIC timer, because the direct-mode STIMER is
+ * not supported by old versions of Hyper-V. This also allows users
+ * to switch to LAPIC timer via /sys, if they want to.
+ */
+ if (old_setup_percpu_clockev)
+ old_setup_percpu_clockev();
+}
+
+static void __init hv_get_partition_id(void)
+{
+ struct hv_get_partition_id *output_page;
+ u64 status;
+ unsigned long flags;
+
+ local_irq_save(flags);
+ output_page = *this_cpu_ptr(hyperv_pcpu_output_arg);
+ status = hv_do_hypercall(HVCALL_GET_PARTITION_ID, NULL, output_page);
+ if (!hv_result_success(status)) {
+ /* No point in proceeding if this failed */
+ pr_err("Failed to get partition ID: %lld\n", status);
+ BUG();
+ }
+ hv_current_partition_id = output_page->partition_id;
+ local_irq_restore(flags);
+}
+
+/*
+ * This function is to be invoked early in the boot sequence after the
+ * hypervisor has been detected.
+ *
+ * 1. Setup the hypercall page.
+ * 2. Register Hyper-V specific clocksource.
+ * 3. Setup Hyper-V specific APIC entry points.
+ */
+void __init hyperv_init(void)
+{
+ u64 guest_id;
+ union hv_x64_msr_hypercall_contents hypercall_msr;
+ int cpuhp;
+
+ if (x86_hyper_type != X86_HYPER_MS_HYPERV)
+ return;
+
+ if (hv_common_init())
+ return;
+
+ hv_vp_assist_page = kcalloc(num_possible_cpus(),
+ sizeof(*hv_vp_assist_page), GFP_KERNEL);
+ if (!hv_vp_assist_page) {
+ ms_hyperv.hints &= ~HV_X64_ENLIGHTENED_VMCS_RECOMMENDED;
+ goto common_free;
+ }
+
+ if (hv_isolation_type_snp()) {
+ /* Negotiate GHCB Version. */
+ if (!hv_ghcb_negotiate_protocol())
+ hv_ghcb_terminate(SEV_TERM_SET_GEN,
+ GHCB_SEV_ES_PROT_UNSUPPORTED);
+
+ hv_ghcb_pg = alloc_percpu(union hv_ghcb *);
+ if (!hv_ghcb_pg)
+ goto free_vp_assist_page;
+ }
+
+ cpuhp = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "x86/hyperv_init:online",
+ hv_cpu_init, hv_cpu_die);
+ if (cpuhp < 0)
+ goto free_ghcb_page;
+
+ /*
+ * Setup the hypercall page and enable hypercalls.
+ * 1. Register the guest ID
+ * 2. Enable the hypercall and register the hypercall page
+ */
+ guest_id = hv_generate_guest_id(LINUX_VERSION_CODE);
+ wrmsrl(HV_X64_MSR_GUEST_OS_ID, guest_id);
+
+ /* Hyper-V requires to write guest os id via ghcb in SNP IVM. */
+ hv_ghcb_msr_write(HV_X64_MSR_GUEST_OS_ID, guest_id);
+
+ hv_hypercall_pg = __vmalloc_node_range(PAGE_SIZE, 1, VMALLOC_START,
+ VMALLOC_END, GFP_KERNEL, PAGE_KERNEL_ROX,
+ VM_FLUSH_RESET_PERMS, NUMA_NO_NODE,
+ __builtin_return_address(0));
+ if (hv_hypercall_pg == NULL)
+ goto clean_guest_os_id;
+
+ rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+ hypercall_msr.enable = 1;
+
+ if (hv_root_partition) {
+ struct page *pg;
+ void *src;
+
+ /*
+ * For the root partition, the hypervisor will set up its
+ * hypercall page. The hypervisor guarantees it will not show
+ * up in the root's address space. The root can't change the
+ * location of the hypercall page.
+ *
+ * Order is important here. We must enable the hypercall page
+ * so it is populated with code, then copy the code to an
+ * executable page.
+ */
+ wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+
+ pg = vmalloc_to_page(hv_hypercall_pg);
+ src = memremap(hypercall_msr.guest_physical_address << PAGE_SHIFT, PAGE_SIZE,
+ MEMREMAP_WB);
+ BUG_ON(!src);
+ memcpy_to_page(pg, 0, src, HV_HYP_PAGE_SIZE);
+ memunmap(src);
+
+ hv_remap_tsc_clocksource();
+ } else {
+ hypercall_msr.guest_physical_address = vmalloc_to_pfn(hv_hypercall_pg);
+ wrmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+ }
+
+ /*
+ * hyperv_init() is called before LAPIC is initialized: see
+ * apic_intr_mode_init() -> x86_platform.apic_post_init() and
+ * apic_bsp_setup() -> setup_local_APIC(). The direct-mode STIMER
+ * depends on LAPIC, so hv_stimer_alloc() should be called from
+ * x86_init.timers.setup_percpu_clockev.
+ */
+ old_setup_percpu_clockev = x86_init.timers.setup_percpu_clockev;
+ x86_init.timers.setup_percpu_clockev = hv_stimer_setup_percpu_clockev;
+
+ hv_apic_init();
+
+ x86_init.pci.arch_init = hv_pci_init;
+
+ register_syscore_ops(&hv_syscore_ops);
+
+ hyperv_init_cpuhp = cpuhp;
+
+ if (cpuid_ebx(HYPERV_CPUID_FEATURES) & HV_ACCESS_PARTITION_ID)
+ hv_get_partition_id();
+
+ BUG_ON(hv_root_partition && hv_current_partition_id == ~0ull);
+
+#ifdef CONFIG_PCI_MSI
+ /*
+ * If we're running as root, we want to create our own PCI MSI domain.
+ * We can't set this in hv_pci_init because that would be too late.
+ */
+ if (hv_root_partition)
+ x86_init.irqs.create_pci_msi_domain = hv_create_pci_msi_domain;
+#endif
+
+ /* Query the VMs extended capability once, so that it can be cached. */
+ hv_query_ext_cap(0);
+
+ return;
+
+clean_guest_os_id:
+ wrmsrl(HV_X64_MSR_GUEST_OS_ID, 0);
+ hv_ghcb_msr_write(HV_X64_MSR_GUEST_OS_ID, 0);
+ cpuhp_remove_state(cpuhp);
+free_ghcb_page:
+ free_percpu(hv_ghcb_pg);
+free_vp_assist_page:
+ kfree(hv_vp_assist_page);
+ hv_vp_assist_page = NULL;
+common_free:
+ hv_common_free();
+}
+
+/*
+ * This routine is called before kexec/kdump, it does the required cleanup.
+ */
+void hyperv_cleanup(void)
+{
+ union hv_x64_msr_hypercall_contents hypercall_msr;
+ union hv_reference_tsc_msr tsc_msr;
+
+ /* Reset our OS id */
+ wrmsrl(HV_X64_MSR_GUEST_OS_ID, 0);
+ hv_ghcb_msr_write(HV_X64_MSR_GUEST_OS_ID, 0);
+
+ /*
+ * Reset hypercall page reference before reset the page,
+ * let hypercall operations fail safely rather than
+ * panic the kernel for using invalid hypercall page
+ */
+ hv_hypercall_pg = NULL;
+
+ /* Reset the hypercall page */
+ hypercall_msr.as_uint64 = hv_get_register(HV_X64_MSR_HYPERCALL);
+ hypercall_msr.enable = 0;
+ hv_set_register(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+
+ /* Reset the TSC page */
+ tsc_msr.as_uint64 = hv_get_register(HV_X64_MSR_REFERENCE_TSC);
+ tsc_msr.enable = 0;
+ hv_set_register(HV_X64_MSR_REFERENCE_TSC, tsc_msr.as_uint64);
+}
+
+void hyperv_report_panic(struct pt_regs *regs, long err, bool in_die)
+{
+ static bool panic_reported;
+ u64 guest_id;
+
+ if (in_die && !panic_on_oops)
+ return;
+
+ /*
+ * We prefer to report panic on 'die' chain as we have proper
+ * registers to report, but if we miss it (e.g. on BUG()) we need
+ * to report it on 'panic'.
+ */
+ if (panic_reported)
+ return;
+ panic_reported = true;
+
+ rdmsrl(HV_X64_MSR_GUEST_OS_ID, guest_id);
+
+ wrmsrl(HV_X64_MSR_CRASH_P0, err);
+ wrmsrl(HV_X64_MSR_CRASH_P1, guest_id);
+ wrmsrl(HV_X64_MSR_CRASH_P2, regs->ip);
+ wrmsrl(HV_X64_MSR_CRASH_P3, regs->ax);
+ wrmsrl(HV_X64_MSR_CRASH_P4, regs->sp);
+
+ /*
+ * Let Hyper-V know there is crash data available
+ */
+ wrmsrl(HV_X64_MSR_CRASH_CTL, HV_CRASH_CTL_CRASH_NOTIFY);
+}
+EXPORT_SYMBOL_GPL(hyperv_report_panic);
+
+bool hv_is_hyperv_initialized(void)
+{
+ union hv_x64_msr_hypercall_contents hypercall_msr;
+
+ /*
+ * Ensure that we're really on Hyper-V, and not a KVM or Xen
+ * emulation of Hyper-V
+ */
+ if (x86_hyper_type != X86_HYPER_MS_HYPERV)
+ return false;
+
+ /*
+ * Verify that earlier initialization succeeded by checking
+ * that the hypercall page is setup
+ */
+ hypercall_msr.as_uint64 = 0;
+ rdmsrl(HV_X64_MSR_HYPERCALL, hypercall_msr.as_uint64);
+
+ return hypercall_msr.enable;
+}
+EXPORT_SYMBOL_GPL(hv_is_hyperv_initialized);
diff --git a/arch/x86/hyperv/hv_proc.c b/arch/x86/hyperv/hv_proc.c
new file mode 100644
index 000000000000..68a0843d4750
--- /dev/null
+++ b/arch/x86/hyperv/hv_proc.c
@@ -0,0 +1,213 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/types.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
+#include <linux/clockchips.h>
+#include <linux/acpi.h>
+#include <linux/hyperv.h>
+#include <linux/slab.h>
+#include <linux/cpuhotplug.h>
+#include <linux/minmax.h>
+#include <asm/hypervisor.h>
+#include <asm/mshyperv.h>
+#include <asm/apic.h>
+
+#include <asm/trace/hyperv.h>
+
+/*
+ * See struct hv_deposit_memory. The first u64 is partition ID, the rest
+ * are GPAs.
+ */
+#define HV_DEPOSIT_MAX (HV_HYP_PAGE_SIZE / sizeof(u64) - 1)
+
+/* Deposits exact number of pages. Must be called with interrupts enabled. */
+int hv_call_deposit_pages(int node, u64 partition_id, u32 num_pages)
+{
+ struct page **pages, *page;
+ int *counts;
+ int num_allocations;
+ int i, j, page_count;
+ int order;
+ u64 status;
+ int ret;
+ u64 base_pfn;
+ struct hv_deposit_memory *input_page;
+ unsigned long flags;
+
+ if (num_pages > HV_DEPOSIT_MAX)
+ return -E2BIG;
+ if (!num_pages)
+ return 0;
+
+ /* One buffer for page pointers and counts */
+ page = alloc_page(GFP_KERNEL);
+ if (!page)
+ return -ENOMEM;
+ pages = page_address(page);
+
+ counts = kcalloc(HV_DEPOSIT_MAX, sizeof(int), GFP_KERNEL);
+ if (!counts) {
+ free_page((unsigned long)pages);
+ return -ENOMEM;
+ }
+
+ /* Allocate all the pages before disabling interrupts */
+ i = 0;
+
+ while (num_pages) {
+ /* Find highest order we can actually allocate */
+ order = 31 - __builtin_clz(num_pages);
+
+ while (1) {
+ pages[i] = alloc_pages_node(node, GFP_KERNEL, order);
+ if (pages[i])
+ break;
+ if (!order) {
+ ret = -ENOMEM;
+ num_allocations = i;
+ goto err_free_allocations;
+ }
+ --order;
+ }
+
+ split_page(pages[i], order);
+ counts[i] = 1 << order;
+ num_pages -= counts[i];
+ i++;
+ }
+ num_allocations = i;
+
+ local_irq_save(flags);
+
+ input_page = *this_cpu_ptr(hyperv_pcpu_input_arg);
+
+ input_page->partition_id = partition_id;
+
+ /* Populate gpa_page_list - these will fit on the input page */
+ for (i = 0, page_count = 0; i < num_allocations; ++i) {
+ base_pfn = page_to_pfn(pages[i]);
+ for (j = 0; j < counts[i]; ++j, ++page_count)
+ input_page->gpa_page_list[page_count] = base_pfn + j;
+ }
+ status = hv_do_rep_hypercall(HVCALL_DEPOSIT_MEMORY,
+ page_count, 0, input_page, NULL);
+ local_irq_restore(flags);
+ if (!hv_result_success(status)) {
+ pr_err("Failed to deposit pages: %lld\n", status);
+ ret = hv_result(status);
+ goto err_free_allocations;
+ }
+
+ ret = 0;
+ goto free_buf;
+
+err_free_allocations:
+ for (i = 0; i < num_allocations; ++i) {
+ base_pfn = page_to_pfn(pages[i]);
+ for (j = 0; j < counts[i]; ++j)
+ __free_page(pfn_to_page(base_pfn + j));
+ }
+
+free_buf:
+ free_page((unsigned long)pages);
+ kfree(counts);
+ return ret;
+}
+
+int hv_call_add_logical_proc(int node, u32 lp_index, u32 apic_id)
+{
+ struct hv_add_logical_processor_in *input;
+ struct hv_add_logical_processor_out *output;
+ u64 status;
+ unsigned long flags;
+ int ret = HV_STATUS_SUCCESS;
+ int pxm = node_to_pxm(node);
+
+ /*
+ * When adding a logical processor, the hypervisor may return
+ * HV_STATUS_INSUFFICIENT_MEMORY. When that happens, we deposit more
+ * pages and retry.
+ */
+ do {
+ local_irq_save(flags);
+
+ input = *this_cpu_ptr(hyperv_pcpu_input_arg);
+ /* We don't do anything with the output right now */
+ output = *this_cpu_ptr(hyperv_pcpu_output_arg);
+
+ input->lp_index = lp_index;
+ input->apic_id = apic_id;
+ input->flags = 0;
+ input->proximity_domain_info.domain_id = pxm;
+ input->proximity_domain_info.flags.reserved = 0;
+ input->proximity_domain_info.flags.proximity_info_valid = 1;
+ input->proximity_domain_info.flags.proximity_preferred = 1;
+ status = hv_do_hypercall(HVCALL_ADD_LOGICAL_PROCESSOR,
+ input, output);
+ local_irq_restore(flags);
+
+ if (hv_result(status) != HV_STATUS_INSUFFICIENT_MEMORY) {
+ if (!hv_result_success(status)) {
+ pr_err("%s: cpu %u apic ID %u, %lld\n", __func__,
+ lp_index, apic_id, status);
+ ret = hv_result(status);
+ }
+ break;
+ }
+ ret = hv_call_deposit_pages(node, hv_current_partition_id, 1);
+ } while (!ret);
+
+ return ret;
+}
+
+int hv_call_create_vp(int node, u64 partition_id, u32 vp_index, u32 flags)
+{
+ struct hv_create_vp *input;
+ u64 status;
+ unsigned long irq_flags;
+ int ret = HV_STATUS_SUCCESS;
+ int pxm = node_to_pxm(node);
+
+ /* Root VPs don't seem to need pages deposited */
+ if (partition_id != hv_current_partition_id) {
+ /* The value 90 is empirically determined. It may change. */
+ ret = hv_call_deposit_pages(node, partition_id, 90);
+ if (ret)
+ return ret;
+ }
+
+ do {
+ local_irq_save(irq_flags);
+
+ input = *this_cpu_ptr(hyperv_pcpu_input_arg);
+
+ input->partition_id = partition_id;
+ input->vp_index = vp_index;
+ input->flags = flags;
+ input->subnode_type = HvSubnodeAny;
+ if (node != NUMA_NO_NODE) {
+ input->proximity_domain_info.domain_id = pxm;
+ input->proximity_domain_info.flags.reserved = 0;
+ input->proximity_domain_info.flags.proximity_info_valid = 1;
+ input->proximity_domain_info.flags.proximity_preferred = 1;
+ } else {
+ input->proximity_domain_info.as_uint64 = 0;
+ }
+ status = hv_do_hypercall(HVCALL_CREATE_VP, input, NULL);
+ local_irq_restore(irq_flags);
+
+ if (hv_result(status) != HV_STATUS_INSUFFICIENT_MEMORY) {
+ if (!hv_result_success(status)) {
+ pr_err("%s: vcpu %u, lp %u, %lld\n", __func__,
+ vp_index, flags, status);
+ ret = hv_result(status);
+ }
+ break;
+ }
+ ret = hv_call_deposit_pages(node, partition_id, 1);
+
+ } while (!ret);
+
+ return ret;
+}
+
diff --git a/arch/x86/hyperv/hv_spinlock.c b/arch/x86/hyperv/hv_spinlock.c
new file mode 100644
index 000000000000..91cfe698bde0
--- /dev/null
+++ b/arch/x86/hyperv/hv_spinlock.c
@@ -0,0 +1,92 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Hyper-V specific spinlock code.
+ *
+ * Copyright (C) 2018, Intel, Inc.
+ *
+ * Author : Yi Sun <yi.y.sun@intel.com>
+ */
+
+#define pr_fmt(fmt) "Hyper-V: " fmt
+
+#include <linux/spinlock.h>
+
+#include <asm/mshyperv.h>
+#include <asm/paravirt.h>
+#include <asm/apic.h>
+
+static bool __initdata hv_pvspin = true;
+
+static void hv_qlock_kick(int cpu)
+{
+ apic->send_IPI(cpu, X86_PLATFORM_IPI_VECTOR);
+}
+
+static void hv_qlock_wait(u8 *byte, u8 val)
+{
+ unsigned long flags;
+
+ if (in_nmi())
+ return;
+
+ /*
+ * Reading HV_X64_MSR_GUEST_IDLE MSR tells the hypervisor that the
+ * vCPU can be put into 'idle' state. This 'idle' state is
+ * terminated by an IPI, usually from hv_qlock_kick(), even if
+ * interrupts are disabled on the vCPU.
+ *
+ * To prevent a race against the unlock path it is required to
+ * disable interrupts before accessing the HV_X64_MSR_GUEST_IDLE
+ * MSR. Otherwise, if the IPI from hv_qlock_kick() arrives between
+ * the lock value check and the rdmsrl() then the vCPU might be put
+ * into 'idle' state by the hypervisor and kept in that state for
+ * an unspecified amount of time.
+ */
+ local_irq_save(flags);
+ /*
+ * Only issue the rdmsrl() when the lock state has not changed.
+ */
+ if (READ_ONCE(*byte) == val) {
+ unsigned long msr_val;
+
+ rdmsrl(HV_X64_MSR_GUEST_IDLE, msr_val);
+
+ (void)msr_val;
+ }
+ local_irq_restore(flags);
+}
+
+/*
+ * Hyper-V does not support this so far.
+ */
+__visible bool hv_vcpu_is_preempted(int vcpu)
+{
+ return false;
+}
+PV_CALLEE_SAVE_REGS_THUNK(hv_vcpu_is_preempted);
+
+void __init hv_init_spinlocks(void)
+{
+ if (!hv_pvspin || !apic ||
+ !(ms_hyperv.hints & HV_X64_CLUSTER_IPI_RECOMMENDED) ||
+ !(ms_hyperv.features & HV_MSR_GUEST_IDLE_AVAILABLE)) {
+ pr_info("PV spinlocks disabled\n");
+ return;
+ }
+ pr_info("PV spinlocks enabled\n");
+
+ __pv_init_lock_hash();
+ pv_ops.lock.queued_spin_lock_slowpath = __pv_queued_spin_lock_slowpath;
+ pv_ops.lock.queued_spin_unlock = PV_CALLEE_SAVE(__pv_queued_spin_unlock);
+ pv_ops.lock.wait = hv_qlock_wait;
+ pv_ops.lock.kick = hv_qlock_kick;
+ pv_ops.lock.vcpu_is_preempted = PV_CALLEE_SAVE(hv_vcpu_is_preempted);
+}
+
+static __init int hv_parse_nopvspin(char *arg)
+{
+ hv_pvspin = false;
+ return 0;
+}
+early_param("hv_nopvspin", hv_parse_nopvspin);
diff --git a/arch/x86/hyperv/hv_vtl.c b/arch/x86/hyperv/hv_vtl.c
new file mode 100644
index 000000000000..1ba5d3b99b16
--- /dev/null
+++ b/arch/x86/hyperv/hv_vtl.c
@@ -0,0 +1,227 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2023, Microsoft Corporation.
+ *
+ * Author:
+ * Saurabh Sengar <ssengar@microsoft.com>
+ */
+
+#include <asm/apic.h>
+#include <asm/boot.h>
+#include <asm/desc.h>
+#include <asm/i8259.h>
+#include <asm/mshyperv.h>
+#include <asm/realmode.h>
+
+extern struct boot_params boot_params;
+static struct real_mode_header hv_vtl_real_mode_header;
+
+void __init hv_vtl_init_platform(void)
+{
+ pr_info("Linux runs in Hyper-V Virtual Trust Level\n");
+
+ x86_init.irqs.pre_vector_init = x86_init_noop;
+ x86_init.timers.timer_init = x86_init_noop;
+
+ x86_platform.get_wallclock = get_rtc_noop;
+ x86_platform.set_wallclock = set_rtc_noop;
+ x86_platform.get_nmi_reason = hv_get_nmi_reason;
+
+ x86_platform.legacy.i8042 = X86_LEGACY_I8042_PLATFORM_ABSENT;
+ x86_platform.legacy.rtc = 0;
+ x86_platform.legacy.warm_reset = 0;
+ x86_platform.legacy.reserve_bios_regions = 0;
+ x86_platform.legacy.devices.pnpbios = 0;
+}
+
+static inline u64 hv_vtl_system_desc_base(struct ldttss_desc *desc)
+{
+ return ((u64)desc->base3 << 32) | ((u64)desc->base2 << 24) |
+ (desc->base1 << 16) | desc->base0;
+}
+
+static inline u32 hv_vtl_system_desc_limit(struct ldttss_desc *desc)
+{
+ return ((u32)desc->limit1 << 16) | (u32)desc->limit0;
+}
+
+typedef void (*secondary_startup_64_fn)(void*, void*);
+static void hv_vtl_ap_entry(void)
+{
+ ((secondary_startup_64_fn)secondary_startup_64)(&boot_params, &boot_params);
+}
+
+static int hv_vtl_bringup_vcpu(u32 target_vp_index, u64 eip_ignored)
+{
+ u64 status;
+ int ret = 0;
+ struct hv_enable_vp_vtl *input;
+ unsigned long irq_flags;
+
+ struct desc_ptr gdt_ptr;
+ struct desc_ptr idt_ptr;
+
+ struct ldttss_desc *tss;
+ struct ldttss_desc *ldt;
+ struct desc_struct *gdt;
+
+ u64 rsp = current->thread.sp;
+ u64 rip = (u64)&hv_vtl_ap_entry;
+
+ native_store_gdt(&gdt_ptr);
+ store_idt(&idt_ptr);
+
+ gdt = (struct desc_struct *)((void *)(gdt_ptr.address));
+ tss = (struct ldttss_desc *)(gdt + GDT_ENTRY_TSS);
+ ldt = (struct ldttss_desc *)(gdt + GDT_ENTRY_LDT);
+
+ local_irq_save(irq_flags);
+
+ input = *this_cpu_ptr(hyperv_pcpu_input_arg);
+ memset(input, 0, sizeof(*input));
+
+ input->partition_id = HV_PARTITION_ID_SELF;
+ input->vp_index = target_vp_index;
+ input->target_vtl.target_vtl = HV_VTL_MGMT;
+
+ /*
+ * The x86_64 Linux kernel follows the 16-bit -> 32-bit -> 64-bit
+ * mode transition sequence after waking up an AP with SIPI whose
+ * vector points to the 16-bit AP startup trampoline code. Here in
+ * VTL2, we can't perform that sequence as the AP has to start in
+ * the 64-bit mode.
+ *
+ * To make this happen, we tell the hypervisor to load a valid 64-bit
+ * context (most of which is just magic numbers from the CPU manual)
+ * so that AP jumps right to the 64-bit entry of the kernel, and the
+ * control registers are loaded with values that let the AP fetch the
+ * code and data and carry on with work it gets assigned.
+ */
+
+ input->vp_context.rip = rip;
+ input->vp_context.rsp = rsp;
+ input->vp_context.rflags = 0x0000000000000002;
+ input->vp_context.efer = __rdmsr(MSR_EFER);
+ input->vp_context.cr0 = native_read_cr0();
+ input->vp_context.cr3 = __native_read_cr3();
+ input->vp_context.cr4 = native_read_cr4();
+ input->vp_context.msr_cr_pat = __rdmsr(MSR_IA32_CR_PAT);
+ input->vp_context.idtr.limit = idt_ptr.size;
+ input->vp_context.idtr.base = idt_ptr.address;
+ input->vp_context.gdtr.limit = gdt_ptr.size;
+ input->vp_context.gdtr.base = gdt_ptr.address;
+
+ /* Non-system desc (64bit), long, code, present */
+ input->vp_context.cs.selector = __KERNEL_CS;
+ input->vp_context.cs.base = 0;
+ input->vp_context.cs.limit = 0xffffffff;
+ input->vp_context.cs.attributes = 0xa09b;
+ /* Non-system desc (64bit), data, present, granularity, default */
+ input->vp_context.ss.selector = __KERNEL_DS;
+ input->vp_context.ss.base = 0;
+ input->vp_context.ss.limit = 0xffffffff;
+ input->vp_context.ss.attributes = 0xc093;
+
+ /* System desc (128bit), present, LDT */
+ input->vp_context.ldtr.selector = GDT_ENTRY_LDT * 8;
+ input->vp_context.ldtr.base = hv_vtl_system_desc_base(ldt);
+ input->vp_context.ldtr.limit = hv_vtl_system_desc_limit(ldt);
+ input->vp_context.ldtr.attributes = 0x82;
+
+ /* System desc (128bit), present, TSS, 0x8b - busy, 0x89 -- default */
+ input->vp_context.tr.selector = GDT_ENTRY_TSS * 8;
+ input->vp_context.tr.base = hv_vtl_system_desc_base(tss);
+ input->vp_context.tr.limit = hv_vtl_system_desc_limit(tss);
+ input->vp_context.tr.attributes = 0x8b;
+
+ status = hv_do_hypercall(HVCALL_ENABLE_VP_VTL, input, NULL);
+
+ if (!hv_result_success(status) &&
+ hv_result(status) != HV_STATUS_VTL_ALREADY_ENABLED) {
+ pr_err("HVCALL_ENABLE_VP_VTL failed for VP : %d ! [Err: %#llx\n]",
+ target_vp_index, status);
+ ret = -EINVAL;
+ goto free_lock;
+ }
+
+ status = hv_do_hypercall(HVCALL_START_VP, input, NULL);
+
+ if (!hv_result_success(status)) {
+ pr_err("HVCALL_START_VP failed for VP : %d ! [Err: %#llx]\n",
+ target_vp_index, status);
+ ret = -EINVAL;
+ }
+
+free_lock:
+ local_irq_restore(irq_flags);
+
+ return ret;
+}
+
+static int hv_vtl_apicid_to_vp_id(u32 apic_id)
+{
+ u64 control;
+ u64 status;
+ unsigned long irq_flags;
+ struct hv_get_vp_from_apic_id_in *input;
+ u32 *output, ret;
+
+ local_irq_save(irq_flags);
+
+ input = *this_cpu_ptr(hyperv_pcpu_input_arg);
+ memset(input, 0, sizeof(*input));
+ input->partition_id = HV_PARTITION_ID_SELF;
+ input->apic_ids[0] = apic_id;
+
+ output = (u32 *)input;
+
+ control = HV_HYPERCALL_REP_COMP_1 | HVCALL_GET_VP_ID_FROM_APIC_ID;
+ status = hv_do_hypercall(control, input, output);
+ ret = output[0];
+
+ local_irq_restore(irq_flags);
+
+ if (!hv_result_success(status)) {
+ pr_err("failed to get vp id from apic id %d, status %#llx\n",
+ apic_id, status);
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static int hv_vtl_wakeup_secondary_cpu(int apicid, unsigned long start_eip)
+{
+ int vp_id;
+
+ pr_debug("Bringing up CPU with APIC ID %d in VTL2...\n", apicid);
+ vp_id = hv_vtl_apicid_to_vp_id(apicid);
+
+ if (vp_id < 0) {
+ pr_err("Couldn't find CPU with APIC ID %d\n", apicid);
+ return -EINVAL;
+ }
+ if (vp_id > ms_hyperv.max_vp_index) {
+ pr_err("Invalid CPU id %d for APIC ID %d\n", vp_id, apicid);
+ return -EINVAL;
+ }
+
+ return hv_vtl_bringup_vcpu(vp_id, start_eip);
+}
+
+static int __init hv_vtl_early_init(void)
+{
+ /*
+ * `boot_cpu_has` returns the runtime feature support,
+ * and here is the earliest it can be used.
+ */
+ if (cpu_feature_enabled(X86_FEATURE_XSAVE))
+ panic("XSAVE has to be disabled as it is not supported by this module.\n"
+ "Please add 'noxsave' to the kernel command line.\n");
+
+ real_mode_header = &hv_vtl_real_mode_header;
+ apic->wakeup_secondary_cpu_64 = hv_vtl_wakeup_secondary_cpu;
+
+ return 0;
+}
+early_initcall(hv_vtl_early_init);
diff --git a/arch/x86/hyperv/irqdomain.c b/arch/x86/hyperv/irqdomain.c
new file mode 100644
index 000000000000..42c70d28ef27
--- /dev/null
+++ b/arch/x86/hyperv/irqdomain.c
@@ -0,0 +1,364 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Irqdomain for Linux to run as the root partition on Microsoft Hypervisor.
+ *
+ * Authors:
+ * Sunil Muthuswamy <sunilmut@microsoft.com>
+ * Wei Liu <wei.liu@kernel.org>
+ */
+
+#include <linux/pci.h>
+#include <linux/irq.h>
+#include <asm/mshyperv.h>
+
+static int hv_map_interrupt(union hv_device_id device_id, bool level,
+ int cpu, int vector, struct hv_interrupt_entry *entry)
+{
+ struct hv_input_map_device_interrupt *input;
+ struct hv_output_map_device_interrupt *output;
+ struct hv_device_interrupt_descriptor *intr_desc;
+ unsigned long flags;
+ u64 status;
+ int nr_bank, var_size;
+
+ local_irq_save(flags);
+
+ input = *this_cpu_ptr(hyperv_pcpu_input_arg);
+ output = *this_cpu_ptr(hyperv_pcpu_output_arg);
+
+ intr_desc = &input->interrupt_descriptor;
+ memset(input, 0, sizeof(*input));
+ input->partition_id = hv_current_partition_id;
+ input->device_id = device_id.as_uint64;
+ intr_desc->interrupt_type = HV_X64_INTERRUPT_TYPE_FIXED;
+ intr_desc->vector_count = 1;
+ intr_desc->target.vector = vector;
+
+ if (level)
+ intr_desc->trigger_mode = HV_INTERRUPT_TRIGGER_MODE_LEVEL;
+ else
+ intr_desc->trigger_mode = HV_INTERRUPT_TRIGGER_MODE_EDGE;
+
+ intr_desc->target.vp_set.valid_bank_mask = 0;
+ intr_desc->target.vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+ nr_bank = cpumask_to_vpset(&(intr_desc->target.vp_set), cpumask_of(cpu));
+ if (nr_bank < 0) {
+ local_irq_restore(flags);
+ pr_err("%s: unable to generate VP set\n", __func__);
+ return EINVAL;
+ }
+ intr_desc->target.flags = HV_DEVICE_INTERRUPT_TARGET_PROCESSOR_SET;
+
+ /*
+ * var-sized hypercall, var-size starts after vp_mask (thus
+ * vp_set.format does not count, but vp_set.valid_bank_mask
+ * does).
+ */
+ var_size = nr_bank + 1;
+
+ status = hv_do_rep_hypercall(HVCALL_MAP_DEVICE_INTERRUPT, 0, var_size,
+ input, output);
+ *entry = output->interrupt_entry;
+
+ local_irq_restore(flags);
+
+ if (!hv_result_success(status))
+ pr_err("%s: hypercall failed, status %lld\n", __func__, status);
+
+ return hv_result(status);
+}
+
+static int hv_unmap_interrupt(u64 id, struct hv_interrupt_entry *old_entry)
+{
+ unsigned long flags;
+ struct hv_input_unmap_device_interrupt *input;
+ struct hv_interrupt_entry *intr_entry;
+ u64 status;
+
+ local_irq_save(flags);
+ input = *this_cpu_ptr(hyperv_pcpu_input_arg);
+
+ memset(input, 0, sizeof(*input));
+ intr_entry = &input->interrupt_entry;
+ input->partition_id = hv_current_partition_id;
+ input->device_id = id;
+ *intr_entry = *old_entry;
+
+ status = hv_do_hypercall(HVCALL_UNMAP_DEVICE_INTERRUPT, input, NULL);
+ local_irq_restore(flags);
+
+ return hv_result(status);
+}
+
+#ifdef CONFIG_PCI_MSI
+struct rid_data {
+ struct pci_dev *bridge;
+ u32 rid;
+};
+
+static int get_rid_cb(struct pci_dev *pdev, u16 alias, void *data)
+{
+ struct rid_data *rd = data;
+ u8 bus = PCI_BUS_NUM(rd->rid);
+
+ if (pdev->bus->number != bus || PCI_BUS_NUM(alias) != bus) {
+ rd->bridge = pdev;
+ rd->rid = alias;
+ }
+
+ return 0;
+}
+
+static union hv_device_id hv_build_pci_dev_id(struct pci_dev *dev)
+{
+ union hv_device_id dev_id;
+ struct rid_data data = {
+ .bridge = NULL,
+ .rid = PCI_DEVID(dev->bus->number, dev->devfn)
+ };
+
+ pci_for_each_dma_alias(dev, get_rid_cb, &data);
+
+ dev_id.as_uint64 = 0;
+ dev_id.device_type = HV_DEVICE_TYPE_PCI;
+ dev_id.pci.segment = pci_domain_nr(dev->bus);
+
+ dev_id.pci.bdf.bus = PCI_BUS_NUM(data.rid);
+ dev_id.pci.bdf.device = PCI_SLOT(data.rid);
+ dev_id.pci.bdf.function = PCI_FUNC(data.rid);
+ dev_id.pci.source_shadow = HV_SOURCE_SHADOW_NONE;
+
+ if (data.bridge) {
+ int pos;
+
+ /*
+ * Microsoft Hypervisor requires a bus range when the bridge is
+ * running in PCI-X mode.
+ *
+ * To distinguish conventional vs PCI-X bridge, we can check
+ * the bridge's PCI-X Secondary Status Register, Secondary Bus
+ * Mode and Frequency bits. See PCI Express to PCI/PCI-X Bridge
+ * Specification Revision 1.0 5.2.2.1.3.
+ *
+ * Value zero means it is in conventional mode, otherwise it is
+ * in PCI-X mode.
+ */
+
+ pos = pci_find_capability(data.bridge, PCI_CAP_ID_PCIX);
+ if (pos) {
+ u16 status;
+
+ pci_read_config_word(data.bridge, pos +
+ PCI_X_BRIDGE_SSTATUS, &status);
+
+ if (status & PCI_X_SSTATUS_FREQ) {
+ /* Non-zero, PCI-X mode */
+ u8 sec_bus, sub_bus;
+
+ dev_id.pci.source_shadow = HV_SOURCE_SHADOW_BRIDGE_BUS_RANGE;
+
+ pci_read_config_byte(data.bridge, PCI_SECONDARY_BUS, &sec_bus);
+ dev_id.pci.shadow_bus_range.secondary_bus = sec_bus;
+ pci_read_config_byte(data.bridge, PCI_SUBORDINATE_BUS, &sub_bus);
+ dev_id.pci.shadow_bus_range.subordinate_bus = sub_bus;
+ }
+ }
+ }
+
+ return dev_id;
+}
+
+static int hv_map_msi_interrupt(struct pci_dev *dev, int cpu, int vector,
+ struct hv_interrupt_entry *entry)
+{
+ union hv_device_id device_id = hv_build_pci_dev_id(dev);
+
+ return hv_map_interrupt(device_id, false, cpu, vector, entry);
+}
+
+static inline void entry_to_msi_msg(struct hv_interrupt_entry *entry, struct msi_msg *msg)
+{
+ /* High address is always 0 */
+ msg->address_hi = 0;
+ msg->address_lo = entry->msi_entry.address.as_uint32;
+ msg->data = entry->msi_entry.data.as_uint32;
+}
+
+static int hv_unmap_msi_interrupt(struct pci_dev *dev, struct hv_interrupt_entry *old_entry);
+static void hv_irq_compose_msi_msg(struct irq_data *data, struct msi_msg *msg)
+{
+ struct msi_desc *msidesc;
+ struct pci_dev *dev;
+ struct hv_interrupt_entry out_entry, *stored_entry;
+ struct irq_cfg *cfg = irqd_cfg(data);
+ const cpumask_t *affinity;
+ int cpu;
+ u64 status;
+
+ msidesc = irq_data_get_msi_desc(data);
+ dev = msi_desc_to_pci_dev(msidesc);
+
+ if (!cfg) {
+ pr_debug("%s: cfg is NULL", __func__);
+ return;
+ }
+
+ affinity = irq_data_get_effective_affinity_mask(data);
+ cpu = cpumask_first_and(affinity, cpu_online_mask);
+
+ if (data->chip_data) {
+ /*
+ * This interrupt is already mapped. Let's unmap first.
+ *
+ * We don't use retarget interrupt hypercalls here because
+ * Microsoft Hypervisor doens't allow root to change the vector
+ * or specify VPs outside of the set that is initially used
+ * during mapping.
+ */
+ stored_entry = data->chip_data;
+ data->chip_data = NULL;
+
+ status = hv_unmap_msi_interrupt(dev, stored_entry);
+
+ kfree(stored_entry);
+
+ if (status != HV_STATUS_SUCCESS) {
+ pr_debug("%s: failed to unmap, status %lld", __func__, status);
+ return;
+ }
+ }
+
+ stored_entry = kzalloc(sizeof(*stored_entry), GFP_ATOMIC);
+ if (!stored_entry) {
+ pr_debug("%s: failed to allocate chip data\n", __func__);
+ return;
+ }
+
+ status = hv_map_msi_interrupt(dev, cpu, cfg->vector, &out_entry);
+ if (status != HV_STATUS_SUCCESS) {
+ kfree(stored_entry);
+ return;
+ }
+
+ *stored_entry = out_entry;
+ data->chip_data = stored_entry;
+ entry_to_msi_msg(&out_entry, msg);
+
+ return;
+}
+
+static int hv_unmap_msi_interrupt(struct pci_dev *dev, struct hv_interrupt_entry *old_entry)
+{
+ return hv_unmap_interrupt(hv_build_pci_dev_id(dev).as_uint64, old_entry);
+}
+
+static void hv_teardown_msi_irq(struct pci_dev *dev, struct irq_data *irqd)
+{
+ struct hv_interrupt_entry old_entry;
+ struct msi_msg msg;
+ u64 status;
+
+ if (!irqd->chip_data) {
+ pr_debug("%s: no chip data\n!", __func__);
+ return;
+ }
+
+ old_entry = *(struct hv_interrupt_entry *)irqd->chip_data;
+ entry_to_msi_msg(&old_entry, &msg);
+
+ kfree(irqd->chip_data);
+ irqd->chip_data = NULL;
+
+ status = hv_unmap_msi_interrupt(dev, &old_entry);
+
+ if (status != HV_STATUS_SUCCESS)
+ pr_err("%s: hypercall failed, status %lld\n", __func__, status);
+}
+
+static void hv_msi_free_irq(struct irq_domain *domain,
+ struct msi_domain_info *info, unsigned int virq)
+{
+ struct irq_data *irqd = irq_get_irq_data(virq);
+ struct msi_desc *desc;
+
+ if (!irqd)
+ return;
+
+ desc = irq_data_get_msi_desc(irqd);
+ if (!desc || !desc->irq || WARN_ON_ONCE(!dev_is_pci(desc->dev)))
+ return;
+
+ hv_teardown_msi_irq(to_pci_dev(desc->dev), irqd);
+}
+
+/*
+ * IRQ Chip for MSI PCI/PCI-X/PCI-Express Devices,
+ * which implement the MSI or MSI-X Capability Structure.
+ */
+static struct irq_chip hv_pci_msi_controller = {
+ .name = "HV-PCI-MSI",
+ .irq_unmask = pci_msi_unmask_irq,
+ .irq_mask = pci_msi_mask_irq,
+ .irq_ack = irq_chip_ack_parent,
+ .irq_retrigger = irq_chip_retrigger_hierarchy,
+ .irq_compose_msi_msg = hv_irq_compose_msi_msg,
+ .irq_set_affinity = msi_domain_set_affinity,
+ .flags = IRQCHIP_SKIP_SET_WAKE,
+};
+
+static struct msi_domain_ops pci_msi_domain_ops = {
+ .msi_free = hv_msi_free_irq,
+ .msi_prepare = pci_msi_prepare,
+};
+
+static struct msi_domain_info hv_pci_msi_domain_info = {
+ .flags = MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS |
+ MSI_FLAG_PCI_MSIX,
+ .ops = &pci_msi_domain_ops,
+ .chip = &hv_pci_msi_controller,
+ .handler = handle_edge_irq,
+ .handler_name = "edge",
+};
+
+struct irq_domain * __init hv_create_pci_msi_domain(void)
+{
+ struct irq_domain *d = NULL;
+ struct fwnode_handle *fn;
+
+ fn = irq_domain_alloc_named_fwnode("HV-PCI-MSI");
+ if (fn)
+ d = pci_msi_create_irq_domain(fn, &hv_pci_msi_domain_info, x86_vector_domain);
+
+ /* No point in going further if we can't get an irq domain */
+ BUG_ON(!d);
+
+ return d;
+}
+
+#endif /* CONFIG_PCI_MSI */
+
+int hv_unmap_ioapic_interrupt(int ioapic_id, struct hv_interrupt_entry *entry)
+{
+ union hv_device_id device_id;
+
+ device_id.as_uint64 = 0;
+ device_id.device_type = HV_DEVICE_TYPE_IOAPIC;
+ device_id.ioapic.ioapic_id = (u8)ioapic_id;
+
+ return hv_unmap_interrupt(device_id.as_uint64, entry);
+}
+EXPORT_SYMBOL_GPL(hv_unmap_ioapic_interrupt);
+
+int hv_map_ioapic_interrupt(int ioapic_id, bool level, int cpu, int vector,
+ struct hv_interrupt_entry *entry)
+{
+ union hv_device_id device_id;
+
+ device_id.as_uint64 = 0;
+ device_id.device_type = HV_DEVICE_TYPE_IOAPIC;
+ device_id.ioapic.ioapic_id = (u8)ioapic_id;
+
+ return hv_map_interrupt(device_id, level, cpu, vector, entry);
+}
+EXPORT_SYMBOL_GPL(hv_map_ioapic_interrupt);
diff --git a/arch/x86/hyperv/ivm.c b/arch/x86/hyperv/ivm.c
new file mode 100644
index 000000000000..cc92388b7a99
--- /dev/null
+++ b/arch/x86/hyperv/ivm.c
@@ -0,0 +1,411 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hyper-V Isolation VM interface with paravisor and hypervisor
+ *
+ * Author:
+ * Tianyu Lan <Tianyu.Lan@microsoft.com>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/hyperv.h>
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <asm/svm.h>
+#include <asm/sev.h>
+#include <asm/io.h>
+#include <asm/coco.h>
+#include <asm/mem_encrypt.h>
+#include <asm/mshyperv.h>
+#include <asm/hypervisor.h>
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+
+#define GHCB_USAGE_HYPERV_CALL 1
+
+union hv_ghcb {
+ struct ghcb ghcb;
+ struct {
+ u64 hypercalldata[509];
+ u64 outputgpa;
+ union {
+ union {
+ struct {
+ u32 callcode : 16;
+ u32 isfast : 1;
+ u32 reserved1 : 14;
+ u32 isnested : 1;
+ u32 countofelements : 12;
+ u32 reserved2 : 4;
+ u32 repstartindex : 12;
+ u32 reserved3 : 4;
+ };
+ u64 asuint64;
+ } hypercallinput;
+ union {
+ struct {
+ u16 callstatus;
+ u16 reserved1;
+ u32 elementsprocessed : 12;
+ u32 reserved2 : 20;
+ };
+ u64 asunit64;
+ } hypercalloutput;
+ };
+ u64 reserved2;
+ } hypercall;
+} __packed __aligned(HV_HYP_PAGE_SIZE);
+
+static u16 hv_ghcb_version __ro_after_init;
+
+u64 hv_ghcb_hypercall(u64 control, void *input, void *output, u32 input_size)
+{
+ union hv_ghcb *hv_ghcb;
+ void **ghcb_base;
+ unsigned long flags;
+ u64 status;
+
+ if (!hv_ghcb_pg)
+ return -EFAULT;
+
+ WARN_ON(in_nmi());
+
+ local_irq_save(flags);
+ ghcb_base = (void **)this_cpu_ptr(hv_ghcb_pg);
+ hv_ghcb = (union hv_ghcb *)*ghcb_base;
+ if (!hv_ghcb) {
+ local_irq_restore(flags);
+ return -EFAULT;
+ }
+
+ hv_ghcb->ghcb.protocol_version = GHCB_PROTOCOL_MAX;
+ hv_ghcb->ghcb.ghcb_usage = GHCB_USAGE_HYPERV_CALL;
+
+ hv_ghcb->hypercall.outputgpa = (u64)output;
+ hv_ghcb->hypercall.hypercallinput.asuint64 = 0;
+ hv_ghcb->hypercall.hypercallinput.callcode = control;
+
+ if (input_size)
+ memcpy(hv_ghcb->hypercall.hypercalldata, input, input_size);
+
+ VMGEXIT();
+
+ hv_ghcb->ghcb.ghcb_usage = 0xffffffff;
+ memset(hv_ghcb->ghcb.save.valid_bitmap, 0,
+ sizeof(hv_ghcb->ghcb.save.valid_bitmap));
+
+ status = hv_ghcb->hypercall.hypercalloutput.callstatus;
+
+ local_irq_restore(flags);
+
+ return status;
+}
+
+static inline u64 rd_ghcb_msr(void)
+{
+ return __rdmsr(MSR_AMD64_SEV_ES_GHCB);
+}
+
+static inline void wr_ghcb_msr(u64 val)
+{
+ native_wrmsrl(MSR_AMD64_SEV_ES_GHCB, val);
+}
+
+static enum es_result hv_ghcb_hv_call(struct ghcb *ghcb, u64 exit_code,
+ u64 exit_info_1, u64 exit_info_2)
+{
+ /* Fill in protocol and format specifiers */
+ ghcb->protocol_version = hv_ghcb_version;
+ ghcb->ghcb_usage = GHCB_DEFAULT_USAGE;
+
+ ghcb_set_sw_exit_code(ghcb, exit_code);
+ ghcb_set_sw_exit_info_1(ghcb, exit_info_1);
+ ghcb_set_sw_exit_info_2(ghcb, exit_info_2);
+
+ VMGEXIT();
+
+ if (ghcb->save.sw_exit_info_1 & GENMASK_ULL(31, 0))
+ return ES_VMM_ERROR;
+ else
+ return ES_OK;
+}
+
+void __noreturn hv_ghcb_terminate(unsigned int set, unsigned int reason)
+{
+ u64 val = GHCB_MSR_TERM_REQ;
+
+ /* Tell the hypervisor what went wrong. */
+ val |= GHCB_SEV_TERM_REASON(set, reason);
+
+ /* Request Guest Termination from Hypvervisor */
+ wr_ghcb_msr(val);
+ VMGEXIT();
+
+ while (true)
+ asm volatile("hlt\n" : : : "memory");
+}
+
+bool hv_ghcb_negotiate_protocol(void)
+{
+ u64 ghcb_gpa;
+ u64 val;
+
+ /* Save ghcb page gpa. */
+ ghcb_gpa = rd_ghcb_msr();
+
+ /* Do the GHCB protocol version negotiation */
+ wr_ghcb_msr(GHCB_MSR_SEV_INFO_REQ);
+ VMGEXIT();
+ val = rd_ghcb_msr();
+
+ if (GHCB_MSR_INFO(val) != GHCB_MSR_SEV_INFO_RESP)
+ return false;
+
+ if (GHCB_MSR_PROTO_MAX(val) < GHCB_PROTOCOL_MIN ||
+ GHCB_MSR_PROTO_MIN(val) > GHCB_PROTOCOL_MAX)
+ return false;
+
+ hv_ghcb_version = min_t(size_t, GHCB_MSR_PROTO_MAX(val),
+ GHCB_PROTOCOL_MAX);
+
+ /* Write ghcb page back after negotiating protocol. */
+ wr_ghcb_msr(ghcb_gpa);
+ VMGEXIT();
+
+ return true;
+}
+
+void hv_ghcb_msr_write(u64 msr, u64 value)
+{
+ union hv_ghcb *hv_ghcb;
+ void **ghcb_base;
+ unsigned long flags;
+
+ if (!hv_ghcb_pg)
+ return;
+
+ WARN_ON(in_nmi());
+
+ local_irq_save(flags);
+ ghcb_base = (void **)this_cpu_ptr(hv_ghcb_pg);
+ hv_ghcb = (union hv_ghcb *)*ghcb_base;
+ if (!hv_ghcb) {
+ local_irq_restore(flags);
+ return;
+ }
+
+ ghcb_set_rcx(&hv_ghcb->ghcb, msr);
+ ghcb_set_rax(&hv_ghcb->ghcb, lower_32_bits(value));
+ ghcb_set_rdx(&hv_ghcb->ghcb, upper_32_bits(value));
+
+ if (hv_ghcb_hv_call(&hv_ghcb->ghcb, SVM_EXIT_MSR, 1, 0))
+ pr_warn("Fail to write msr via ghcb %llx.\n", msr);
+
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(hv_ghcb_msr_write);
+
+void hv_ghcb_msr_read(u64 msr, u64 *value)
+{
+ union hv_ghcb *hv_ghcb;
+ void **ghcb_base;
+ unsigned long flags;
+
+ /* Check size of union hv_ghcb here. */
+ BUILD_BUG_ON(sizeof(union hv_ghcb) != HV_HYP_PAGE_SIZE);
+
+ if (!hv_ghcb_pg)
+ return;
+
+ WARN_ON(in_nmi());
+
+ local_irq_save(flags);
+ ghcb_base = (void **)this_cpu_ptr(hv_ghcb_pg);
+ hv_ghcb = (union hv_ghcb *)*ghcb_base;
+ if (!hv_ghcb) {
+ local_irq_restore(flags);
+ return;
+ }
+
+ ghcb_set_rcx(&hv_ghcb->ghcb, msr);
+ if (hv_ghcb_hv_call(&hv_ghcb->ghcb, SVM_EXIT_MSR, 0, 0))
+ pr_warn("Fail to read msr via ghcb %llx.\n", msr);
+ else
+ *value = (u64)lower_32_bits(hv_ghcb->ghcb.save.rax)
+ | ((u64)lower_32_bits(hv_ghcb->ghcb.save.rdx) << 32);
+ local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(hv_ghcb_msr_read);
+
+/*
+ * hv_mark_gpa_visibility - Set pages visible to host via hvcall.
+ *
+ * In Isolation VM, all guest memory is encrypted from host and guest
+ * needs to set memory visible to host via hvcall before sharing memory
+ * with host.
+ */
+static int hv_mark_gpa_visibility(u16 count, const u64 pfn[],
+ enum hv_mem_host_visibility visibility)
+{
+ struct hv_gpa_range_for_visibility **input_pcpu, *input;
+ u16 pages_processed;
+ u64 hv_status;
+ unsigned long flags;
+
+ /* no-op if partition isolation is not enabled */
+ if (!hv_is_isolation_supported())
+ return 0;
+
+ if (count > HV_MAX_MODIFY_GPA_REP_COUNT) {
+ pr_err("Hyper-V: GPA count:%d exceeds supported:%lu\n", count,
+ HV_MAX_MODIFY_GPA_REP_COUNT);
+ return -EINVAL;
+ }
+
+ local_irq_save(flags);
+ input_pcpu = (struct hv_gpa_range_for_visibility **)
+ this_cpu_ptr(hyperv_pcpu_input_arg);
+ input = *input_pcpu;
+ if (unlikely(!input)) {
+ local_irq_restore(flags);
+ return -EINVAL;
+ }
+
+ input->partition_id = HV_PARTITION_ID_SELF;
+ input->host_visibility = visibility;
+ input->reserved0 = 0;
+ input->reserved1 = 0;
+ memcpy((void *)input->gpa_page_list, pfn, count * sizeof(*pfn));
+ hv_status = hv_do_rep_hypercall(
+ HVCALL_MODIFY_SPARSE_GPA_PAGE_HOST_VISIBILITY, count,
+ 0, input, &pages_processed);
+ local_irq_restore(flags);
+
+ if (hv_result_success(hv_status))
+ return 0;
+ else
+ return -EFAULT;
+}
+
+/*
+ * hv_vtom_set_host_visibility - Set specified memory visible to host.
+ *
+ * In Isolation VM, all guest memory is encrypted from host and guest
+ * needs to set memory visible to host via hvcall before sharing memory
+ * with host. This function works as wrap of hv_mark_gpa_visibility()
+ * with memory base and size.
+ */
+static bool hv_vtom_set_host_visibility(unsigned long kbuffer, int pagecount, bool enc)
+{
+ enum hv_mem_host_visibility visibility = enc ?
+ VMBUS_PAGE_NOT_VISIBLE : VMBUS_PAGE_VISIBLE_READ_WRITE;
+ u64 *pfn_array;
+ int ret = 0;
+ bool result = true;
+ int i, pfn;
+
+ pfn_array = kmalloc(HV_HYP_PAGE_SIZE, GFP_KERNEL);
+ if (!pfn_array)
+ return false;
+
+ for (i = 0, pfn = 0; i < pagecount; i++) {
+ pfn_array[pfn] = virt_to_hvpfn((void *)kbuffer + i * HV_HYP_PAGE_SIZE);
+ pfn++;
+
+ if (pfn == HV_MAX_MODIFY_GPA_REP_COUNT || i == pagecount - 1) {
+ ret = hv_mark_gpa_visibility(pfn, pfn_array,
+ visibility);
+ if (ret) {
+ result = false;
+ goto err_free_pfn_array;
+ }
+ pfn = 0;
+ }
+ }
+
+ err_free_pfn_array:
+ kfree(pfn_array);
+ return result;
+}
+
+static bool hv_vtom_tlb_flush_required(bool private)
+{
+ return true;
+}
+
+static bool hv_vtom_cache_flush_required(void)
+{
+ return false;
+}
+
+static bool hv_is_private_mmio(u64 addr)
+{
+ /*
+ * Hyper-V always provides a single IO-APIC in a guest VM.
+ * When a paravisor is used, it is emulated by the paravisor
+ * in the guest context and must be mapped private.
+ */
+ if (addr >= HV_IOAPIC_BASE_ADDRESS &&
+ addr < (HV_IOAPIC_BASE_ADDRESS + PAGE_SIZE))
+ return true;
+
+ /* Same with a vTPM */
+ if (addr >= VTPM_BASE_ADDRESS &&
+ addr < (VTPM_BASE_ADDRESS + PAGE_SIZE))
+ return true;
+
+ return false;
+}
+
+void __init hv_vtom_init(void)
+{
+ /*
+ * By design, a VM using vTOM doesn't see the SEV setting,
+ * so SEV initialization is bypassed and sev_status isn't set.
+ * Set it here to indicate a vTOM VM.
+ */
+ sev_status = MSR_AMD64_SNP_VTOM;
+ cc_set_vendor(CC_VENDOR_AMD);
+ cc_set_mask(ms_hyperv.shared_gpa_boundary);
+ physical_mask &= ms_hyperv.shared_gpa_boundary - 1;
+
+ x86_platform.hyper.is_private_mmio = hv_is_private_mmio;
+ x86_platform.guest.enc_cache_flush_required = hv_vtom_cache_flush_required;
+ x86_platform.guest.enc_tlb_flush_required = hv_vtom_tlb_flush_required;
+ x86_platform.guest.enc_status_change_finish = hv_vtom_set_host_visibility;
+}
+
+#endif /* CONFIG_AMD_MEM_ENCRYPT */
+
+enum hv_isolation_type hv_get_isolation_type(void)
+{
+ if (!(ms_hyperv.priv_high & HV_ISOLATION))
+ return HV_ISOLATION_TYPE_NONE;
+ return FIELD_GET(HV_ISOLATION_TYPE, ms_hyperv.isolation_config_b);
+}
+EXPORT_SYMBOL_GPL(hv_get_isolation_type);
+
+/*
+ * hv_is_isolation_supported - Check system runs in the Hyper-V
+ * isolation VM.
+ */
+bool hv_is_isolation_supported(void)
+{
+ if (!cpu_feature_enabled(X86_FEATURE_HYPERVISOR))
+ return false;
+
+ if (!hypervisor_is_type(X86_HYPER_MS_HYPERV))
+ return false;
+
+ return hv_get_isolation_type() != HV_ISOLATION_TYPE_NONE;
+}
+
+DEFINE_STATIC_KEY_FALSE(isolation_type_snp);
+
+/*
+ * hv_isolation_type_snp - Check system runs in the AMD SEV-SNP based
+ * isolation VM.
+ */
+bool hv_isolation_type_snp(void)
+{
+ return static_branch_unlikely(&isolation_type_snp);
+}
diff --git a/arch/x86/hyperv/mmu.c b/arch/x86/hyperv/mmu.c
new file mode 100644
index 000000000000..8460bd35e10c
--- /dev/null
+++ b/arch/x86/hyperv/mmu.c
@@ -0,0 +1,252 @@
+#define pr_fmt(fmt) "Hyper-V: " fmt
+
+#include <linux/hyperv.h>
+#include <linux/log2.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <asm/fpu/api.h>
+#include <asm/mshyperv.h>
+#include <asm/msr.h>
+#include <asm/tlbflush.h>
+#include <asm/tlb.h>
+
+#define CREATE_TRACE_POINTS
+#include <asm/trace/hyperv.h>
+
+/* Each gva in gva_list encodes up to 4096 pages to flush */
+#define HV_TLB_FLUSH_UNIT (4096 * PAGE_SIZE)
+
+static u64 hyperv_flush_tlb_others_ex(const struct cpumask *cpus,
+ const struct flush_tlb_info *info);
+
+/*
+ * Fills in gva_list starting from offset. Returns the number of items added.
+ */
+static inline int fill_gva_list(u64 gva_list[], int offset,
+ unsigned long start, unsigned long end)
+{
+ int gva_n = offset;
+ unsigned long cur = start, diff;
+
+ do {
+ diff = end > cur ? end - cur : 0;
+
+ gva_list[gva_n] = cur & PAGE_MASK;
+ /*
+ * Lower 12 bits encode the number of additional
+ * pages to flush (in addition to the 'cur' page).
+ */
+ if (diff >= HV_TLB_FLUSH_UNIT) {
+ gva_list[gva_n] |= ~PAGE_MASK;
+ cur += HV_TLB_FLUSH_UNIT;
+ } else if (diff) {
+ gva_list[gva_n] |= (diff - 1) >> PAGE_SHIFT;
+ cur = end;
+ }
+
+ gva_n++;
+
+ } while (cur < end);
+
+ return gva_n - offset;
+}
+
+static bool cpu_is_lazy(int cpu)
+{
+ return per_cpu(cpu_tlbstate_shared.is_lazy, cpu);
+}
+
+static void hyperv_flush_tlb_multi(const struct cpumask *cpus,
+ const struct flush_tlb_info *info)
+{
+ int cpu, vcpu, gva_n, max_gvas;
+ struct hv_tlb_flush **flush_pcpu;
+ struct hv_tlb_flush *flush;
+ u64 status;
+ unsigned long flags;
+ bool do_lazy = !info->freed_tables;
+
+ trace_hyperv_mmu_flush_tlb_multi(cpus, info);
+
+ if (!hv_hypercall_pg)
+ goto do_native;
+
+ local_irq_save(flags);
+
+ flush_pcpu = (struct hv_tlb_flush **)
+ this_cpu_ptr(hyperv_pcpu_input_arg);
+
+ flush = *flush_pcpu;
+
+ if (unlikely(!flush)) {
+ local_irq_restore(flags);
+ goto do_native;
+ }
+
+ if (info->mm) {
+ /*
+ * AddressSpace argument must match the CR3 with PCID bits
+ * stripped out.
+ */
+ flush->address_space = virt_to_phys(info->mm->pgd);
+ flush->address_space &= CR3_ADDR_MASK;
+ flush->flags = 0;
+ } else {
+ flush->address_space = 0;
+ flush->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+ }
+
+ flush->processor_mask = 0;
+ if (cpumask_equal(cpus, cpu_present_mask)) {
+ flush->flags |= HV_FLUSH_ALL_PROCESSORS;
+ } else {
+ /*
+ * From the supplied CPU set we need to figure out if we can get
+ * away with cheaper HVCALL_FLUSH_VIRTUAL_ADDRESS_{LIST,SPACE}
+ * hypercalls. This is possible when the highest VP number in
+ * the set is < 64. As VP numbers are usually in ascending order
+ * and match Linux CPU ids, here is an optimization: we check
+ * the VP number for the highest bit in the supplied set first
+ * so we can quickly find out if using *_EX hypercalls is a
+ * must. We will also check all VP numbers when walking the
+ * supplied CPU set to remain correct in all cases.
+ */
+ cpu = cpumask_last(cpus);
+
+ if (cpu < nr_cpumask_bits && hv_cpu_number_to_vp_number(cpu) >= 64)
+ goto do_ex_hypercall;
+
+ for_each_cpu(cpu, cpus) {
+ if (do_lazy && cpu_is_lazy(cpu))
+ continue;
+ vcpu = hv_cpu_number_to_vp_number(cpu);
+ if (vcpu == VP_INVAL) {
+ local_irq_restore(flags);
+ goto do_native;
+ }
+
+ if (vcpu >= 64)
+ goto do_ex_hypercall;
+
+ __set_bit(vcpu, (unsigned long *)
+ &flush->processor_mask);
+ }
+
+ /* nothing to flush if 'processor_mask' ends up being empty */
+ if (!flush->processor_mask) {
+ local_irq_restore(flags);
+ return;
+ }
+ }
+
+ /*
+ * We can flush not more than max_gvas with one hypercall. Flush the
+ * whole address space if we were asked to do more.
+ */
+ max_gvas = (PAGE_SIZE - sizeof(*flush)) / sizeof(flush->gva_list[0]);
+
+ if (info->end == TLB_FLUSH_ALL) {
+ flush->flags |= HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY;
+ status = hv_do_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE,
+ flush, NULL);
+ } else if (info->end &&
+ ((info->end - info->start)/HV_TLB_FLUSH_UNIT) > max_gvas) {
+ status = hv_do_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE,
+ flush, NULL);
+ } else {
+ gva_n = fill_gva_list(flush->gva_list, 0,
+ info->start, info->end);
+ status = hv_do_rep_hypercall(HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST,
+ gva_n, 0, flush, NULL);
+ }
+ goto check_status;
+
+do_ex_hypercall:
+ status = hyperv_flush_tlb_others_ex(cpus, info);
+
+check_status:
+ local_irq_restore(flags);
+
+ if (hv_result_success(status))
+ return;
+do_native:
+ native_flush_tlb_multi(cpus, info);
+}
+
+static u64 hyperv_flush_tlb_others_ex(const struct cpumask *cpus,
+ const struct flush_tlb_info *info)
+{
+ int nr_bank = 0, max_gvas, gva_n;
+ struct hv_tlb_flush_ex **flush_pcpu;
+ struct hv_tlb_flush_ex *flush;
+ u64 status;
+
+ if (!(ms_hyperv.hints & HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED))
+ return HV_STATUS_INVALID_PARAMETER;
+
+ flush_pcpu = (struct hv_tlb_flush_ex **)
+ this_cpu_ptr(hyperv_pcpu_input_arg);
+
+ flush = *flush_pcpu;
+
+ if (info->mm) {
+ /*
+ * AddressSpace argument must match the CR3 with PCID bits
+ * stripped out.
+ */
+ flush->address_space = virt_to_phys(info->mm->pgd);
+ flush->address_space &= CR3_ADDR_MASK;
+ flush->flags = 0;
+ } else {
+ flush->address_space = 0;
+ flush->flags = HV_FLUSH_ALL_VIRTUAL_ADDRESS_SPACES;
+ }
+
+ flush->hv_vp_set.valid_bank_mask = 0;
+
+ flush->hv_vp_set.format = HV_GENERIC_SET_SPARSE_4K;
+ nr_bank = cpumask_to_vpset_skip(&flush->hv_vp_set, cpus,
+ info->freed_tables ? NULL : cpu_is_lazy);
+ if (nr_bank < 0)
+ return HV_STATUS_INVALID_PARAMETER;
+
+ /*
+ * We can flush not more than max_gvas with one hypercall. Flush the
+ * whole address space if we were asked to do more.
+ */
+ max_gvas =
+ (PAGE_SIZE - sizeof(*flush) - nr_bank *
+ sizeof(flush->hv_vp_set.bank_contents[0])) /
+ sizeof(flush->gva_list[0]);
+
+ if (info->end == TLB_FLUSH_ALL) {
+ flush->flags |= HV_FLUSH_NON_GLOBAL_MAPPINGS_ONLY;
+ status = hv_do_rep_hypercall(
+ HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX,
+ 0, nr_bank, flush, NULL);
+ } else if (info->end &&
+ ((info->end - info->start)/HV_TLB_FLUSH_UNIT) > max_gvas) {
+ status = hv_do_rep_hypercall(
+ HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE_EX,
+ 0, nr_bank, flush, NULL);
+ } else {
+ gva_n = fill_gva_list(flush->gva_list, nr_bank,
+ info->start, info->end);
+ status = hv_do_rep_hypercall(
+ HVCALL_FLUSH_VIRTUAL_ADDRESS_LIST_EX,
+ gva_n, nr_bank, flush, NULL);
+ }
+
+ return status;
+}
+
+void hyperv_setup_mmu_ops(void)
+{
+ if (!(ms_hyperv.hints & HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED))
+ return;
+
+ pr_info("Using hypercall for remote TLB flush\n");
+ pv_ops.mmu.flush_tlb_multi = hyperv_flush_tlb_multi;
+ pv_ops.mmu.tlb_remove_table = tlb_remove_table;
+}
diff --git a/arch/x86/hyperv/nested.c b/arch/x86/hyperv/nested.c
new file mode 100644
index 000000000000..5d70968c8538
--- /dev/null
+++ b/arch/x86/hyperv/nested.c
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * Hyper-V nested virtualization code.
+ *
+ * Copyright (C) 2018, Microsoft, Inc.
+ *
+ * Author : Lan Tianyu <Tianyu.Lan@microsoft.com>
+ */
+#define pr_fmt(fmt) "Hyper-V: " fmt
+
+
+#include <linux/types.h>
+#include <asm/hyperv-tlfs.h>
+#include <asm/mshyperv.h>
+#include <asm/tlbflush.h>
+
+#include <asm/trace/hyperv.h>
+
+int hyperv_flush_guest_mapping(u64 as)
+{
+ struct hv_guest_mapping_flush **flush_pcpu;
+ struct hv_guest_mapping_flush *flush;
+ u64 status;
+ unsigned long flags;
+ int ret = -ENOTSUPP;
+
+ if (!hv_hypercall_pg)
+ goto fault;
+
+ local_irq_save(flags);
+
+ flush_pcpu = (struct hv_guest_mapping_flush **)
+ this_cpu_ptr(hyperv_pcpu_input_arg);
+
+ flush = *flush_pcpu;
+
+ if (unlikely(!flush)) {
+ local_irq_restore(flags);
+ goto fault;
+ }
+
+ flush->address_space = as;
+ flush->flags = 0;
+
+ status = hv_do_hypercall(HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_SPACE,
+ flush, NULL);
+ local_irq_restore(flags);
+
+ if (hv_result_success(status))
+ ret = 0;
+
+fault:
+ trace_hyperv_nested_flush_guest_mapping(as, ret);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(hyperv_flush_guest_mapping);
+
+int hyperv_fill_flush_guest_mapping_list(
+ struct hv_guest_mapping_flush_list *flush,
+ u64 start_gfn, u64 pages)
+{
+ u64 cur = start_gfn;
+ u64 additional_pages;
+ int gpa_n = 0;
+
+ do {
+ /*
+ * If flush requests exceed max flush count, go back to
+ * flush tlbs without range.
+ */
+ if (gpa_n >= HV_MAX_FLUSH_REP_COUNT)
+ return -ENOSPC;
+
+ additional_pages = min_t(u64, pages, HV_MAX_FLUSH_PAGES) - 1;
+
+ flush->gpa_list[gpa_n].page.additional_pages = additional_pages;
+ flush->gpa_list[gpa_n].page.largepage = false;
+ flush->gpa_list[gpa_n].page.basepfn = cur;
+
+ pages -= additional_pages + 1;
+ cur += additional_pages + 1;
+ gpa_n++;
+ } while (pages > 0);
+
+ return gpa_n;
+}
+EXPORT_SYMBOL_GPL(hyperv_fill_flush_guest_mapping_list);
+
+int hyperv_flush_guest_mapping_range(u64 as,
+ hyperv_fill_flush_list_func fill_flush_list_func, void *data)
+{
+ struct hv_guest_mapping_flush_list **flush_pcpu;
+ struct hv_guest_mapping_flush_list *flush;
+ u64 status;
+ unsigned long flags;
+ int ret = -ENOTSUPP;
+ int gpa_n = 0;
+
+ if (!hv_hypercall_pg || !fill_flush_list_func)
+ goto fault;
+
+ local_irq_save(flags);
+
+ flush_pcpu = (struct hv_guest_mapping_flush_list **)
+ this_cpu_ptr(hyperv_pcpu_input_arg);
+
+ flush = *flush_pcpu;
+ if (unlikely(!flush)) {
+ local_irq_restore(flags);
+ goto fault;
+ }
+
+ flush->address_space = as;
+ flush->flags = 0;
+
+ gpa_n = fill_flush_list_func(flush, data);
+ if (gpa_n < 0) {
+ local_irq_restore(flags);
+ goto fault;
+ }
+
+ status = hv_do_rep_hypercall(HVCALL_FLUSH_GUEST_PHYSICAL_ADDRESS_LIST,
+ gpa_n, 0, flush, NULL);
+
+ local_irq_restore(flags);
+
+ if (hv_result_success(status))
+ ret = 0;
+ else
+ ret = hv_result(status);
+fault:
+ trace_hyperv_nested_flush_guest_mapping_range(as, ret);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(hyperv_flush_guest_mapping_range);
diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile
index 52d0ccfcf6ea..333556a86b2a 100644
--- a/arch/x86/ia32/Makefile
+++ b/arch/x86/ia32/Makefile
@@ -1,13 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0-only
#
# Makefile for the ia32 kernel emulation subsystem.
#
-obj-$(CONFIG_IA32_EMULATION) := ia32entry.o sys_ia32.o ia32_signal.o
-
-sysv-$(CONFIG_SYSVIPC) := ipc32.o
-obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
-
-obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
-
audit-class-$(CONFIG_AUDIT) := audit.o
obj-$(CONFIG_IA32_EMULATION) += $(audit-class-y)
diff --git a/arch/x86/ia32/audit.c b/arch/x86/ia32/audit.c
index 5d7b381da692..59e19549e759 100644
--- a/arch/x86/ia32/audit.c
+++ b/arch/x86/ia32/audit.c
@@ -1,4 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/audit_arch.h>
#include <asm/unistd_32.h>
+#include <asm/audit.h>
unsigned ia32_dir_class[] = {
#include <asm-generic/audit_dir_write.h>
@@ -29,14 +32,17 @@ int ia32_classify_syscall(unsigned syscall)
{
switch (syscall) {
case __NR_open:
- return 2;
+ return AUDITSC_OPEN;
case __NR_openat:
- return 3;
+ return AUDITSC_OPENAT;
case __NR_socketcall:
- return 4;
+ return AUDITSC_SOCKETCALL;
case __NR_execve:
- return 5;
+ case __NR_execveat:
+ return AUDITSC_EXECVE;
+ case __NR_openat2:
+ return AUDITSC_OPENAT2;
default:
- return 1;
+ return AUDITSC_COMPAT;
}
}
diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
deleted file mode 100644
index fd843877e841..000000000000
--- a/arch/x86/ia32/ia32_aout.c
+++ /dev/null
@@ -1,532 +0,0 @@
-/*
- * a.out loader for x86-64
- *
- * Copyright (C) 1991, 1992, 1996 Linus Torvalds
- * Hacked together by Andi Kleen
- */
-
-#include <linux/module.h>
-
-#include <linux/time.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/mman.h>
-#include <linux/a.out.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/stat.h>
-#include <linux/fcntl.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/binfmts.h>
-#include <linux/personality.h>
-#include <linux/init.h>
-#include <linux/jiffies.h>
-
-#include <asm/system.h>
-#include <asm/uaccess.h>
-#include <asm/pgalloc.h>
-#include <asm/cacheflush.h>
-#include <asm/user32.h>
-#include <asm/ia32.h>
-
-#undef WARN_OLD
-#undef CORE_DUMP /* definitely broken */
-
-static int load_aout_binary(struct linux_binprm *, struct pt_regs *regs);
-static int load_aout_library(struct file *);
-
-#ifdef CORE_DUMP
-static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
- unsigned long limit);
-
-/*
- * fill in the user structure for a core dump..
- */
-static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
-{
- u32 fs, gs;
-
-/* changed the size calculations - should hopefully work better. lbt */
- dump->magic = CMAGIC;
- dump->start_code = 0;
- dump->start_stack = regs->sp & ~(PAGE_SIZE - 1);
- dump->u_tsize = ((unsigned long) current->mm->end_code) >> PAGE_SHIFT;
- dump->u_dsize = ((unsigned long)
- (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
- dump->u_dsize -= dump->u_tsize;
- dump->u_ssize = 0;
- dump->u_debugreg[0] = current->thread.debugreg0;
- dump->u_debugreg[1] = current->thread.debugreg1;
- dump->u_debugreg[2] = current->thread.debugreg2;
- dump->u_debugreg[3] = current->thread.debugreg3;
- dump->u_debugreg[4] = 0;
- dump->u_debugreg[5] = 0;
- dump->u_debugreg[6] = current->thread.debugreg6;
- dump->u_debugreg[7] = current->thread.debugreg7;
-
- if (dump->start_stack < 0xc0000000) {
- unsigned long tmp;
-
- tmp = (unsigned long) (0xc0000000 - dump->start_stack);
- dump->u_ssize = tmp >> PAGE_SHIFT;
- }
-
- dump->regs.bx = regs->bx;
- dump->regs.cx = regs->cx;
- dump->regs.dx = regs->dx;
- dump->regs.si = regs->si;
- dump->regs.di = regs->di;
- dump->regs.bp = regs->bp;
- dump->regs.ax = regs->ax;
- dump->regs.ds = current->thread.ds;
- dump->regs.es = current->thread.es;
- savesegment(fs, fs);
- dump->regs.fs = fs;
- savesegment(gs, gs);
- dump->regs.gs = gs;
- dump->regs.orig_ax = regs->orig_ax;
- dump->regs.ip = regs->ip;
- dump->regs.cs = regs->cs;
- dump->regs.flags = regs->flags;
- dump->regs.sp = regs->sp;
- dump->regs.ss = regs->ss;
-
-#if 1 /* FIXME */
- dump->u_fpvalid = 0;
-#else
- dump->u_fpvalid = dump_fpu(regs, &dump->i387);
-#endif
-}
-
-#endif
-
-static struct linux_binfmt aout_format = {
- .module = THIS_MODULE,
- .load_binary = load_aout_binary,
- .load_shlib = load_aout_library,
-#ifdef CORE_DUMP
- .core_dump = aout_core_dump,
-#endif
- .min_coredump = PAGE_SIZE
-};
-
-static void set_brk(unsigned long start, unsigned long end)
-{
- start = PAGE_ALIGN(start);
- end = PAGE_ALIGN(end);
- if (end <= start)
- return;
- down_write(&current->mm->mmap_sem);
- do_brk(start, end - start);
- up_write(&current->mm->mmap_sem);
-}
-
-#ifdef CORE_DUMP
-/*
- * These are the only things you should do on a core-file: use only these
- * macros to write out all the necessary info.
- */
-
-#include <linux/coredump.h>
-
-#define DUMP_WRITE(addr, nr) \
- if (!dump_write(file, (void *)(addr), (nr))) \
- goto end_coredump;
-
-#define DUMP_SEEK(offset) \
- if (!dump_seek(file, offset)) \
- goto end_coredump;
-
-#define START_DATA() (u.u_tsize << PAGE_SHIFT)
-#define START_STACK(u) (u.start_stack)
-
-/*
- * Routine writes a core dump image in the current directory.
- * Currently only a stub-function.
- *
- * Note that setuid/setgid files won't make a core-dump if the uid/gid
- * changed due to the set[u|g]id. It's enforced by the "current->mm->dumpable"
- * field, which also makes sure the core-dumps won't be recursive if the
- * dumping of the process results in another error..
- */
-
-static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
- unsigned long limit)
-{
- mm_segment_t fs;
- int has_dumped = 0;
- unsigned long dump_start, dump_size;
- struct user32 dump;
-
- fs = get_fs();
- set_fs(KERNEL_DS);
- has_dumped = 1;
- current->flags |= PF_DUMPCORE;
- strncpy(dump.u_comm, current->comm, sizeof(current->comm));
- dump.u_ar0 = offsetof(struct user32, regs);
- dump.signal = signr;
- dump_thread32(regs, &dump);
-
- /*
- * If the size of the dump file exceeds the rlimit, then see
- * what would happen if we wrote the stack, but not the data
- * area.
- */
- if ((dump.u_dsize + dump.u_ssize + 1) * PAGE_SIZE > limit)
- dump.u_dsize = 0;
-
- /* Make sure we have enough room to write the stack and data areas. */
- if ((dump.u_ssize + 1) * PAGE_SIZE > limit)
- dump.u_ssize = 0;
-
- /* make sure we actually have a data and stack area to dump */
- set_fs(USER_DS);
- if (!access_ok(VERIFY_READ, (void *) (unsigned long)START_DATA(dump),
- dump.u_dsize << PAGE_SHIFT))
- dump.u_dsize = 0;
- if (!access_ok(VERIFY_READ, (void *) (unsigned long)START_STACK(dump),
- dump.u_ssize << PAGE_SHIFT))
- dump.u_ssize = 0;
-
- set_fs(KERNEL_DS);
- /* struct user */
- DUMP_WRITE(&dump, sizeof(dump));
- /* Now dump all of the user data. Include malloced stuff as well */
- DUMP_SEEK(PAGE_SIZE);
- /* now we start writing out the user space info */
- set_fs(USER_DS);
- /* Dump the data area */
- if (dump.u_dsize != 0) {
- dump_start = START_DATA(dump);
- dump_size = dump.u_dsize << PAGE_SHIFT;
- DUMP_WRITE(dump_start, dump_size);
- }
- /* Now prepare to dump the stack area */
- if (dump.u_ssize != 0) {
- dump_start = START_STACK(dump);
- dump_size = dump.u_ssize << PAGE_SHIFT;
- DUMP_WRITE(dump_start, dump_size);
- }
-end_coredump:
- set_fs(fs);
- return has_dumped;
-}
-#endif
-
-/*
- * create_aout_tables() parses the env- and arg-strings in new user
- * memory and creates the pointer tables from them, and puts their
- * addresses on the "stack", returning the new stack pointer value.
- */
-static u32 __user *create_aout_tables(char __user *p, struct linux_binprm *bprm)
-{
- u32 __user *argv, *envp, *sp;
- int argc = bprm->argc, envc = bprm->envc;
-
- sp = (u32 __user *) ((-(unsigned long)sizeof(u32)) & (unsigned long) p);
- sp -= envc+1;
- envp = sp;
- sp -= argc+1;
- argv = sp;
- put_user((unsigned long) envp, --sp);
- put_user((unsigned long) argv, --sp);
- put_user(argc, --sp);
- current->mm->arg_start = (unsigned long) p;
- while (argc-- > 0) {
- char c;
-
- put_user((u32)(unsigned long)p, argv++);
- do {
- get_user(c, p++);
- } while (c);
- }
- put_user(0, argv);
- current->mm->arg_end = current->mm->env_start = (unsigned long) p;
- while (envc-- > 0) {
- char c;
-
- put_user((u32)(unsigned long)p, envp++);
- do {
- get_user(c, p++);
- } while (c);
- }
- put_user(0, envp);
- current->mm->env_end = (unsigned long) p;
- return sp;
-}
-
-/*
- * These are the functions used to load a.out style executables and shared
- * libraries. There is no binary dependent code anywhere else.
- */
-static int load_aout_binary(struct linux_binprm *bprm, struct pt_regs *regs)
-{
- unsigned long error, fd_offset, rlim;
- struct exec ex;
- int retval;
-
- ex = *((struct exec *) bprm->buf); /* exec-header */
- if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != OMAGIC &&
- N_MAGIC(ex) != QMAGIC && N_MAGIC(ex) != NMAGIC) ||
- N_TRSIZE(ex) || N_DRSIZE(ex) ||
- i_size_read(bprm->file->f_path.dentry->d_inode) <
- ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
- return -ENOEXEC;
- }
-
- fd_offset = N_TXTOFF(ex);
-
- /* Check initial limits. This avoids letting people circumvent
- * size limits imposed on them by creating programs with large
- * arrays in the data or bss.
- */
- rlim = rlimit(RLIMIT_DATA);
- if (rlim >= RLIM_INFINITY)
- rlim = ~0;
- if (ex.a_data + ex.a_bss > rlim)
- return -ENOMEM;
-
- /* Flush all traces of the currently running executable */
- retval = flush_old_exec(bprm);
- if (retval)
- return retval;
-
- /* OK, This is the point of no return */
- set_personality(PER_LINUX);
- set_thread_flag(TIF_IA32);
- current->mm->context.ia32_compat = 1;
-
- setup_new_exec(bprm);
-
- regs->cs = __USER32_CS;
- regs->r8 = regs->r9 = regs->r10 = regs->r11 = regs->r12 =
- regs->r13 = regs->r14 = regs->r15 = 0;
-
- current->mm->end_code = ex.a_text +
- (current->mm->start_code = N_TXTADDR(ex));
- current->mm->end_data = ex.a_data +
- (current->mm->start_data = N_DATADDR(ex));
- current->mm->brk = ex.a_bss +
- (current->mm->start_brk = N_BSSADDR(ex));
- current->mm->free_area_cache = TASK_UNMAPPED_BASE;
- current->mm->cached_hole_size = 0;
-
- install_exec_creds(bprm);
- current->flags &= ~PF_FORKNOEXEC;
-
- if (N_MAGIC(ex) == OMAGIC) {
- unsigned long text_addr, map_size;
- loff_t pos;
-
- text_addr = N_TXTADDR(ex);
-
- pos = 32;
- map_size = ex.a_text+ex.a_data;
-
- down_write(&current->mm->mmap_sem);
- error = do_brk(text_addr & PAGE_MASK, map_size);
- up_write(&current->mm->mmap_sem);
-
- if (error != (text_addr & PAGE_MASK)) {
- send_sig(SIGKILL, current, 0);
- return error;
- }
-
- error = bprm->file->f_op->read(bprm->file,
- (char __user *)text_addr,
- ex.a_text+ex.a_data, &pos);
- if ((signed long)error < 0) {
- send_sig(SIGKILL, current, 0);
- return error;
- }
-
- flush_icache_range(text_addr, text_addr+ex.a_text+ex.a_data);
- } else {
-#ifdef WARN_OLD
- static unsigned long error_time, error_time2;
- if ((ex.a_text & 0xfff || ex.a_data & 0xfff) &&
- (N_MAGIC(ex) != NMAGIC) &&
- time_after(jiffies, error_time2 + 5*HZ)) {
- printk(KERN_NOTICE "executable not page aligned\n");
- error_time2 = jiffies;
- }
-
- if ((fd_offset & ~PAGE_MASK) != 0 &&
- time_after(jiffies, error_time + 5*HZ)) {
- printk(KERN_WARNING
- "fd_offset is not page aligned. Please convert "
- "program: %s\n",
- bprm->file->f_path.dentry->d_name.name);
- error_time = jiffies;
- }
-#endif
-
- if (!bprm->file->f_op->mmap || (fd_offset & ~PAGE_MASK) != 0) {
- loff_t pos = fd_offset;
-
- down_write(&current->mm->mmap_sem);
- do_brk(N_TXTADDR(ex), ex.a_text+ex.a_data);
- up_write(&current->mm->mmap_sem);
- bprm->file->f_op->read(bprm->file,
- (char __user *)N_TXTADDR(ex),
- ex.a_text+ex.a_data, &pos);
- flush_icache_range((unsigned long) N_TXTADDR(ex),
- (unsigned long) N_TXTADDR(ex) +
- ex.a_text+ex.a_data);
- goto beyond_if;
- }
-
- down_write(&current->mm->mmap_sem);
- error = do_mmap(bprm->file, N_TXTADDR(ex), ex.a_text,
- PROT_READ | PROT_EXEC,
- MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE |
- MAP_EXECUTABLE | MAP_32BIT,
- fd_offset);
- up_write(&current->mm->mmap_sem);
-
- if (error != N_TXTADDR(ex)) {
- send_sig(SIGKILL, current, 0);
- return error;
- }
-
- down_write(&current->mm->mmap_sem);
- error = do_mmap(bprm->file, N_DATADDR(ex), ex.a_data,
- PROT_READ | PROT_WRITE | PROT_EXEC,
- MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE |
- MAP_EXECUTABLE | MAP_32BIT,
- fd_offset + ex.a_text);
- up_write(&current->mm->mmap_sem);
- if (error != N_DATADDR(ex)) {
- send_sig(SIGKILL, current, 0);
- return error;
- }
- }
-beyond_if:
- set_binfmt(&aout_format);
-
- set_brk(current->mm->start_brk, current->mm->brk);
-
- retval = setup_arg_pages(bprm, IA32_STACK_TOP, EXSTACK_DEFAULT);
- if (retval < 0) {
- /* Someone check-me: is this error path enough? */
- send_sig(SIGKILL, current, 0);
- return retval;
- }
-
- current->mm->start_stack =
- (unsigned long)create_aout_tables((char __user *)bprm->p, bprm);
- /* start thread */
- loadsegment(fs, 0);
- loadsegment(ds, __USER32_DS);
- loadsegment(es, __USER32_DS);
- load_gs_index(0);
- (regs)->ip = ex.a_entry;
- (regs)->sp = current->mm->start_stack;
- (regs)->flags = 0x200;
- (regs)->cs = __USER32_CS;
- (regs)->ss = __USER32_DS;
- regs->r8 = regs->r9 = regs->r10 = regs->r11 =
- regs->r12 = regs->r13 = regs->r14 = regs->r15 = 0;
- set_fs(USER_DS);
- return 0;
-}
-
-static int load_aout_library(struct file *file)
-{
- struct inode *inode;
- unsigned long bss, start_addr, len, error;
- int retval;
- struct exec ex;
-
- inode = file->f_path.dentry->d_inode;
-
- retval = -ENOEXEC;
- error = kernel_read(file, 0, (char *) &ex, sizeof(ex));
- if (error != sizeof(ex))
- goto out;
-
- /* We come in here for the regular a.out style of shared libraries */
- if ((N_MAGIC(ex) != ZMAGIC && N_MAGIC(ex) != QMAGIC) || N_TRSIZE(ex) ||
- N_DRSIZE(ex) || ((ex.a_entry & 0xfff) && N_MAGIC(ex) == ZMAGIC) ||
- i_size_read(inode) <
- ex.a_text+ex.a_data+N_SYMSIZE(ex)+N_TXTOFF(ex)) {
- goto out;
- }
-
- if (N_FLAGS(ex))
- goto out;
-
- /* For QMAGIC, the starting address is 0x20 into the page. We mask
- this off to get the starting address for the page */
-
- start_addr = ex.a_entry & 0xfffff000;
-
- if ((N_TXTOFF(ex) & ~PAGE_MASK) != 0) {
- loff_t pos = N_TXTOFF(ex);
-
-#ifdef WARN_OLD
- static unsigned long error_time;
- if (time_after(jiffies, error_time + 5*HZ)) {
- printk(KERN_WARNING
- "N_TXTOFF is not page aligned. Please convert "
- "library: %s\n",
- file->f_path.dentry->d_name.name);
- error_time = jiffies;
- }
-#endif
- down_write(&current->mm->mmap_sem);
- do_brk(start_addr, ex.a_text + ex.a_data + ex.a_bss);
- up_write(&current->mm->mmap_sem);
-
- file->f_op->read(file, (char __user *)start_addr,
- ex.a_text + ex.a_data, &pos);
- flush_icache_range((unsigned long) start_addr,
- (unsigned long) start_addr + ex.a_text +
- ex.a_data);
-
- retval = 0;
- goto out;
- }
- /* Now use mmap to map the library into memory. */
- down_write(&current->mm->mmap_sem);
- error = do_mmap(file, start_addr, ex.a_text + ex.a_data,
- PROT_READ | PROT_WRITE | PROT_EXEC,
- MAP_FIXED | MAP_PRIVATE | MAP_DENYWRITE | MAP_32BIT,
- N_TXTOFF(ex));
- up_write(&current->mm->mmap_sem);
- retval = error;
- if (error != start_addr)
- goto out;
-
- len = PAGE_ALIGN(ex.a_text + ex.a_data);
- bss = ex.a_text + ex.a_data + ex.a_bss;
- if (bss > len) {
- down_write(&current->mm->mmap_sem);
- error = do_brk(start_addr + len, bss - len);
- up_write(&current->mm->mmap_sem);
- retval = error;
- if (error != start_addr + len)
- goto out;
- }
- retval = 0;
-out:
- return retval;
-}
-
-static int __init init_aout_binfmt(void)
-{
- return register_binfmt(&aout_format);
-}
-
-static void __exit exit_aout_binfmt(void)
-{
- unregister_binfmt(&aout_format);
-}
-
-module_init(init_aout_binfmt);
-module_exit(exit_aout_binfmt);
-MODULE_LICENSE("GPL");
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
deleted file mode 100644
index 588a7aa937e1..000000000000
--- a/arch/x86/ia32/ia32_signal.c
+++ /dev/null
@@ -1,567 +0,0 @@
-/*
- * linux/arch/x86_64/ia32/ia32_signal.c
- *
- * Copyright (C) 1991, 1992 Linus Torvalds
- *
- * 1997-11-28 Modified for POSIX.1b signals by Richard Henderson
- * 2000-06-20 Pentium III FXSR, SSE support by Gareth Hughes
- * 2000-12-* x86-64 compatibility mode signal handling by Andi Kleen
- */
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <linux/personality.h>
-#include <linux/compat.h>
-#include <linux/binfmts.h>
-#include <asm/ucontext.h>
-#include <asm/uaccess.h>
-#include <asm/i387.h>
-#include <asm/ptrace.h>
-#include <asm/ia32_unistd.h>
-#include <asm/user32.h>
-#include <asm/sigcontext32.h>
-#include <asm/proto.h>
-#include <asm/vdso.h>
-#include <asm/sigframe.h>
-#include <asm/sys_ia32.h>
-
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
-#define FIX_EFLAGS (X86_EFLAGS_AC | X86_EFLAGS_OF | \
- X86_EFLAGS_DF | X86_EFLAGS_TF | X86_EFLAGS_SF | \
- X86_EFLAGS_ZF | X86_EFLAGS_AF | X86_EFLAGS_PF | \
- X86_EFLAGS_CF)
-
-void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
-
-int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
-{
- int err = 0;
-
- if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t)))
- return -EFAULT;
-
- put_user_try {
- /* If you change siginfo_t structure, please make sure that
- this code is fixed accordingly.
- It should never copy any pad contained in the structure
- to avoid security leaks, but must copy the generic
- 3 ints plus the relevant union member. */
- put_user_ex(from->si_signo, &to->si_signo);
- put_user_ex(from->si_errno, &to->si_errno);
- put_user_ex((short)from->si_code, &to->si_code);
-
- if (from->si_code < 0) {
- put_user_ex(from->si_pid, &to->si_pid);
- put_user_ex(from->si_uid, &to->si_uid);
- put_user_ex(ptr_to_compat(from->si_ptr), &to->si_ptr);
- } else {
- /*
- * First 32bits of unions are always present:
- * si_pid === si_band === si_tid === si_addr(LS half)
- */
- put_user_ex(from->_sifields._pad[0],
- &to->_sifields._pad[0]);
- switch (from->si_code >> 16) {
- case __SI_FAULT >> 16:
- break;
- case __SI_CHLD >> 16:
- put_user_ex(from->si_utime, &to->si_utime);
- put_user_ex(from->si_stime, &to->si_stime);
- put_user_ex(from->si_status, &to->si_status);
- /* FALL THROUGH */
- default:
- case __SI_KILL >> 16:
- put_user_ex(from->si_uid, &to->si_uid);
- break;
- case __SI_POLL >> 16:
- put_user_ex(from->si_fd, &to->si_fd);
- break;
- case __SI_TIMER >> 16:
- put_user_ex(from->si_overrun, &to->si_overrun);
- put_user_ex(ptr_to_compat(from->si_ptr),
- &to->si_ptr);
- break;
- /* This is not generated by the kernel as of now. */
- case __SI_RT >> 16:
- case __SI_MESGQ >> 16:
- put_user_ex(from->si_uid, &to->si_uid);
- put_user_ex(from->si_int, &to->si_int);
- break;
- }
- }
- } put_user_catch(err);
-
- return err;
-}
-
-int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
-{
- int err = 0;
- u32 ptr32;
-
- if (!access_ok(VERIFY_READ, from, sizeof(compat_siginfo_t)))
- return -EFAULT;
-
- get_user_try {
- get_user_ex(to->si_signo, &from->si_signo);
- get_user_ex(to->si_errno, &from->si_errno);
- get_user_ex(to->si_code, &from->si_code);
-
- get_user_ex(to->si_pid, &from->si_pid);
- get_user_ex(to->si_uid, &from->si_uid);
- get_user_ex(ptr32, &from->si_ptr);
- to->si_ptr = compat_ptr(ptr32);
- } get_user_catch(err);
-
- return err;
-}
-
-asmlinkage long sys32_sigsuspend(int history0, int history1, old_sigset_t mask)
-{
- mask &= _BLOCKABLE;
- spin_lock_irq(&current->sighand->siglock);
- current->saved_sigmask = current->blocked;
- siginitset(&current->blocked, mask);
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- current->state = TASK_INTERRUPTIBLE;
- schedule();
- set_restore_sigmask();
- return -ERESTARTNOHAND;
-}
-
-asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *uss_ptr,
- stack_ia32_t __user *uoss_ptr,
- struct pt_regs *regs)
-{
- stack_t uss, uoss;
- int ret, err = 0;
- mm_segment_t seg;
-
- if (uss_ptr) {
- u32 ptr;
-
- memset(&uss, 0, sizeof(stack_t));
- if (!access_ok(VERIFY_READ, uss_ptr, sizeof(stack_ia32_t)))
- return -EFAULT;
-
- get_user_try {
- get_user_ex(ptr, &uss_ptr->ss_sp);
- get_user_ex(uss.ss_flags, &uss_ptr->ss_flags);
- get_user_ex(uss.ss_size, &uss_ptr->ss_size);
- } get_user_catch(err);
-
- if (err)
- return -EFAULT;
- uss.ss_sp = compat_ptr(ptr);
- }
- seg = get_fs();
- set_fs(KERNEL_DS);
- ret = do_sigaltstack(uss_ptr ? &uss : NULL, &uoss, regs->sp);
- set_fs(seg);
- if (ret >= 0 && uoss_ptr) {
- if (!access_ok(VERIFY_WRITE, uoss_ptr, sizeof(stack_ia32_t)))
- return -EFAULT;
-
- put_user_try {
- put_user_ex(ptr_to_compat(uoss.ss_sp), &uoss_ptr->ss_sp);
- put_user_ex(uoss.ss_flags, &uoss_ptr->ss_flags);
- put_user_ex(uoss.ss_size, &uoss_ptr->ss_size);
- } put_user_catch(err);
-
- if (err)
- ret = -EFAULT;
- }
- return ret;
-}
-
-/*
- * Do a signal return; undo the signal stack.
- */
-#define loadsegment_gs(v) load_gs_index(v)
-#define loadsegment_fs(v) loadsegment(fs, v)
-#define loadsegment_ds(v) loadsegment(ds, v)
-#define loadsegment_es(v) loadsegment(es, v)
-
-#define get_user_seg(seg) ({ unsigned int v; savesegment(seg, v); v; })
-#define set_user_seg(seg, v) loadsegment_##seg(v)
-
-#define COPY(x) { \
- get_user_ex(regs->x, &sc->x); \
-}
-
-#define GET_SEG(seg) ({ \
- unsigned short tmp; \
- get_user_ex(tmp, &sc->seg); \
- tmp; \
-})
-
-#define COPY_SEG_CPL3(seg) do { \
- regs->seg = GET_SEG(seg) | 3; \
-} while (0)
-
-#define RELOAD_SEG(seg) { \
- unsigned int pre = GET_SEG(seg); \
- unsigned int cur = get_user_seg(seg); \
- pre |= 3; \
- if (pre != cur) \
- set_user_seg(seg, pre); \
-}
-
-static int ia32_restore_sigcontext(struct pt_regs *regs,
- struct sigcontext_ia32 __user *sc,
- unsigned int *pax)
-{
- unsigned int tmpflags, err = 0;
- void __user *buf;
- u32 tmp;
-
- /* Always make any pending restarted system calls return -EINTR */
- current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
- get_user_try {
- /*
- * Reload fs and gs if they have changed in the signal
- * handler. This does not handle long fs/gs base changes in
- * the handler, but does not clobber them at least in the
- * normal case.
- */
- RELOAD_SEG(gs);
- RELOAD_SEG(fs);
- RELOAD_SEG(ds);
- RELOAD_SEG(es);
-
- COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx);
- COPY(dx); COPY(cx); COPY(ip);
- /* Don't touch extended registers */
-
- COPY_SEG_CPL3(cs);
- COPY_SEG_CPL3(ss);
-
- get_user_ex(tmpflags, &sc->flags);
- regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS);
- /* disable syscall checks */
- regs->orig_ax = -1;
-
- get_user_ex(tmp, &sc->fpstate);
- buf = compat_ptr(tmp);
- err |= restore_i387_xstate_ia32(buf);
-
- get_user_ex(*pax, &sc->ax);
- } get_user_catch(err);
-
- return err;
-}
-
-asmlinkage long sys32_sigreturn(struct pt_regs *regs)
-{
- struct sigframe_ia32 __user *frame = (struct sigframe_ia32 __user *)(regs->sp-8);
- sigset_t set;
- unsigned int ax;
-
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
- if (__get_user(set.sig[0], &frame->sc.oldmask)
- || (_COMPAT_NSIG_WORDS > 1
- && __copy_from_user((((char *) &set.sig) + 4),
- &frame->extramask,
- sizeof(frame->extramask))))
- goto badframe;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- if (ia32_restore_sigcontext(regs, &frame->sc, &ax))
- goto badframe;
- return ax;
-
-badframe:
- signal_fault(regs, frame, "32bit sigreturn");
- return 0;
-}
-
-asmlinkage long sys32_rt_sigreturn(struct pt_regs *regs)
-{
- struct rt_sigframe_ia32 __user *frame;
- sigset_t set;
- unsigned int ax;
- struct pt_regs tregs;
-
- frame = (struct rt_sigframe_ia32 __user *)(regs->sp - 4);
-
- if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
- goto badframe;
- if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
- goto badframe;
-
- sigdelsetmask(&set, ~_BLOCKABLE);
- spin_lock_irq(&current->sighand->siglock);
- current->blocked = set;
- recalc_sigpending();
- spin_unlock_irq(&current->sighand->siglock);
-
- if (ia32_restore_sigcontext(regs, &frame->uc.uc_mcontext, &ax))
- goto badframe;
-
- tregs = *regs;
- if (sys32_sigaltstack(&frame->uc.uc_stack, NULL, &tregs) == -EFAULT)
- goto badframe;
-
- return ax;
-
-badframe:
- signal_fault(regs, frame, "32bit rt sigreturn");
- return 0;
-}
-
-/*
- * Set up a signal frame.
- */
-
-static int ia32_setup_sigcontext(struct sigcontext_ia32 __user *sc,
- void __user *fpstate,
- struct pt_regs *regs, unsigned int mask)
-{
- int err = 0;
-
- put_user_try {
- put_user_ex(get_user_seg(gs), (unsigned int __user *)&sc->gs);
- put_user_ex(get_user_seg(fs), (unsigned int __user *)&sc->fs);
- put_user_ex(get_user_seg(ds), (unsigned int __user *)&sc->ds);
- put_user_ex(get_user_seg(es), (unsigned int __user *)&sc->es);
-
- put_user_ex(regs->di, &sc->di);
- put_user_ex(regs->si, &sc->si);
- put_user_ex(regs->bp, &sc->bp);
- put_user_ex(regs->sp, &sc->sp);
- put_user_ex(regs->bx, &sc->bx);
- put_user_ex(regs->dx, &sc->dx);
- put_user_ex(regs->cx, &sc->cx);
- put_user_ex(regs->ax, &sc->ax);
- put_user_ex(current->thread.trap_no, &sc->trapno);
- put_user_ex(current->thread.error_code, &sc->err);
- put_user_ex(regs->ip, &sc->ip);
- put_user_ex(regs->cs, (unsigned int __user *)&sc->cs);
- put_user_ex(regs->flags, &sc->flags);
- put_user_ex(regs->sp, &sc->sp_at_signal);
- put_user_ex(regs->ss, (unsigned int __user *)&sc->ss);
-
- put_user_ex(ptr_to_compat(fpstate), &sc->fpstate);
-
- /* non-iBCS2 extensions.. */
- put_user_ex(mask, &sc->oldmask);
- put_user_ex(current->thread.cr2, &sc->cr2);
- } put_user_catch(err);
-
- return err;
-}
-
-/*
- * Determine which stack to use..
- */
-static void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
- size_t frame_size,
- void **fpstate)
-{
- unsigned long sp;
-
- /* Default to using normal stack */
- sp = regs->sp;
-
- /* This is the X/Open sanctioned signal stack switching. */
- if (ka->sa.sa_flags & SA_ONSTACK) {
- if (sas_ss_flags(sp) == 0)
- sp = current->sas_ss_sp + current->sas_ss_size;
- }
-
- /* This is the legacy signal stack switching. */
- else if ((regs->ss & 0xffff) != __USER32_DS &&
- !(ka->sa.sa_flags & SA_RESTORER) &&
- ka->sa.sa_restorer)
- sp = (unsigned long) ka->sa.sa_restorer;
-
- if (used_math()) {
- sp = sp - sig_xstate_ia32_size;
- *fpstate = (struct _fpstate_ia32 *) sp;
- if (save_i387_xstate_ia32(*fpstate) < 0)
- return (void __user *) -1L;
- }
-
- sp -= frame_size;
- /* Align the stack pointer according to the i386 ABI,
- * i.e. so that on function entry ((sp + 4) & 15) == 0. */
- sp = ((sp + 4) & -16ul) - 4;
- return (void __user *) sp;
-}
-
-int ia32_setup_frame(int sig, struct k_sigaction *ka,
- compat_sigset_t *set, struct pt_regs *regs)
-{
- struct sigframe_ia32 __user *frame;
- void __user *restorer;
- int err = 0;
- void __user *fpstate = NULL;
-
- /* copy_to_user optimizes that into a single 8 byte store */
- static const struct {
- u16 poplmovl;
- u32 val;
- u16 int80;
- } __attribute__((packed)) code = {
- 0xb858, /* popl %eax ; movl $...,%eax */
- __NR_ia32_sigreturn,
- 0x80cd, /* int $0x80 */
- };
-
- frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- return -EFAULT;
-
- if (__put_user(sig, &frame->sig))
- return -EFAULT;
-
- if (ia32_setup_sigcontext(&frame->sc, fpstate, regs, set->sig[0]))
- return -EFAULT;
-
- if (_COMPAT_NSIG_WORDS > 1) {
- if (__copy_to_user(frame->extramask, &set->sig[1],
- sizeof(frame->extramask)))
- return -EFAULT;
- }
-
- if (ka->sa.sa_flags & SA_RESTORER) {
- restorer = ka->sa.sa_restorer;
- } else {
- /* Return stub is in 32bit vsyscall page */
- if (current->mm->context.vdso)
- restorer = VDSO32_SYMBOL(current->mm->context.vdso,
- sigreturn);
- else
- restorer = &frame->retcode;
- }
-
- put_user_try {
- put_user_ex(ptr_to_compat(restorer), &frame->pretcode);
-
- /*
- * These are actually not used anymore, but left because some
- * gdb versions depend on them as a marker.
- */
- put_user_ex(*((u64 *)&code), (u64 *)frame->retcode);
- } put_user_catch(err);
-
- if (err)
- return -EFAULT;
-
- /* Set up registers for signal handler */
- regs->sp = (unsigned long) frame;
- regs->ip = (unsigned long) ka->sa.sa_handler;
-
- /* Make -mregparm=3 work */
- regs->ax = sig;
- regs->dx = 0;
- regs->cx = 0;
-
- loadsegment(ds, __USER32_DS);
- loadsegment(es, __USER32_DS);
-
- regs->cs = __USER32_CS;
- regs->ss = __USER32_DS;
-
- return 0;
-}
-
-int ia32_setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
- compat_sigset_t *set, struct pt_regs *regs)
-{
- struct rt_sigframe_ia32 __user *frame;
- void __user *restorer;
- int err = 0;
- void __user *fpstate = NULL;
-
- /* __copy_to_user optimizes that into a single 8 byte store */
- static const struct {
- u8 movl;
- u32 val;
- u16 int80;
- u8 pad;
- } __attribute__((packed)) code = {
- 0xb8,
- __NR_ia32_rt_sigreturn,
- 0x80cd,
- 0,
- };
-
- frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate);
-
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
- return -EFAULT;
-
- put_user_try {
- put_user_ex(sig, &frame->sig);
- put_user_ex(ptr_to_compat(&frame->info), &frame->pinfo);
- put_user_ex(ptr_to_compat(&frame->uc), &frame->puc);
- err |= copy_siginfo_to_user32(&frame->info, info);
-
- /* Create the ucontext. */
- if (cpu_has_xsave)
- put_user_ex(UC_FP_XSTATE, &frame->uc.uc_flags);
- else
- put_user_ex(0, &frame->uc.uc_flags);
- put_user_ex(0, &frame->uc.uc_link);
- put_user_ex(current->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
- put_user_ex(sas_ss_flags(regs->sp),
- &frame->uc.uc_stack.ss_flags);
- put_user_ex(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
- err |= ia32_setup_sigcontext(&frame->uc.uc_mcontext, fpstate,
- regs, set->sig[0]);
- err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
-
- if (ka->sa.sa_flags & SA_RESTORER)
- restorer = ka->sa.sa_restorer;
- else
- restorer = VDSO32_SYMBOL(current->mm->context.vdso,
- rt_sigreturn);
- put_user_ex(ptr_to_compat(restorer), &frame->pretcode);
-
- /*
- * Not actually used anymore, but left because some gdb
- * versions need it.
- */
- put_user_ex(*((u64 *)&code), (u64 *)frame->retcode);
- } put_user_catch(err);
-
- if (err)
- return -EFAULT;
-
- /* Set up registers for signal handler */
- regs->sp = (unsigned long) frame;
- regs->ip = (unsigned long) ka->sa.sa_handler;
-
- /* Make -mregparm=3 work */
- regs->ax = sig;
- regs->dx = (unsigned long) &frame->info;
- regs->cx = (unsigned long) &frame->uc;
-
- loadsegment(ds, __USER32_DS);
- loadsegment(es, __USER32_DS);
-
- regs->cs = __USER32_CS;
- regs->ss = __USER32_DS;
-
- return 0;
-}
diff --git a/arch/x86/ia32/ia32entry.S b/arch/x86/ia32/ia32entry.S
deleted file mode 100644
index 849a9d23c71d..000000000000
--- a/arch/x86/ia32/ia32entry.S
+++ /dev/null
@@ -1,851 +0,0 @@
-/*
- * Compatibility mode system call entry point for x86-64.
- *
- * Copyright 2000-2002 Andi Kleen, SuSE Labs.
- */
-
-#include <asm/dwarf2.h>
-#include <asm/calling.h>
-#include <asm/asm-offsets.h>
-#include <asm/current.h>
-#include <asm/errno.h>
-#include <asm/ia32_unistd.h>
-#include <asm/thread_info.h>
-#include <asm/segment.h>
-#include <asm/irqflags.h>
-#include <linux/linkage.h>
-
-/* Avoid __ASSEMBLER__'ifying <linux/audit.h> just for this. */
-#include <linux/elf-em.h>
-#define AUDIT_ARCH_I386 (EM_386|__AUDIT_ARCH_LE)
-#define __AUDIT_ARCH_LE 0x40000000
-
-#ifndef CONFIG_AUDITSYSCALL
-#define sysexit_audit ia32_ret_from_sys_call
-#define sysretl_audit ia32_ret_from_sys_call
-#endif
-
- .section .entry.text, "ax"
-
-#define IA32_NR_syscalls ((ia32_syscall_end - ia32_sys_call_table)/8)
-
- .macro IA32_ARG_FIXUP noebp=0
- movl %edi,%r8d
- .if \noebp
- .else
- movl %ebp,%r9d
- .endif
- xchg %ecx,%esi
- movl %ebx,%edi
- movl %edx,%edx /* zero extension */
- .endm
-
- /* clobbers %eax */
- .macro CLEAR_RREGS offset=0, _r9=rax
- xorl %eax,%eax
- movq %rax,\offset+R11(%rsp)
- movq %rax,\offset+R10(%rsp)
- movq %\_r9,\offset+R9(%rsp)
- movq %rax,\offset+R8(%rsp)
- .endm
-
- /*
- * Reload arg registers from stack in case ptrace changed them.
- * We don't reload %eax because syscall_trace_enter() returned
- * the %rax value we should see. Instead, we just truncate that
- * value to 32 bits again as we did on entry from user mode.
- * If it's a new value set by user_regset during entry tracing,
- * this matches the normal truncation of the user-mode value.
- * If it's -1 to make us punt the syscall, then (u32)-1 is still
- * an appropriately invalid value.
- */
- .macro LOAD_ARGS32 offset, _r9=0
- .if \_r9
- movl \offset+16(%rsp),%r9d
- .endif
- movl \offset+40(%rsp),%ecx
- movl \offset+48(%rsp),%edx
- movl \offset+56(%rsp),%esi
- movl \offset+64(%rsp),%edi
- movl %eax,%eax /* zero extension */
- .endm
-
- .macro CFI_STARTPROC32 simple
- CFI_STARTPROC \simple
- CFI_UNDEFINED r8
- CFI_UNDEFINED r9
- CFI_UNDEFINED r10
- CFI_UNDEFINED r11
- CFI_UNDEFINED r12
- CFI_UNDEFINED r13
- CFI_UNDEFINED r14
- CFI_UNDEFINED r15
- .endm
-
-#ifdef CONFIG_PARAVIRT
-ENTRY(native_usergs_sysret32)
- swapgs
- sysretl
-ENDPROC(native_usergs_sysret32)
-
-ENTRY(native_irq_enable_sysexit)
- swapgs
- sti
- sysexit
-ENDPROC(native_irq_enable_sysexit)
-#endif
-
-/*
- * 32bit SYSENTER instruction entry.
- *
- * Arguments:
- * %eax System call number.
- * %ebx Arg1
- * %ecx Arg2
- * %edx Arg3
- * %esi Arg4
- * %edi Arg5
- * %ebp user stack
- * 0(%ebp) Arg6
- *
- * Interrupts off.
- *
- * This is purely a fast path. For anything complicated we use the int 0x80
- * path below. Set up a complete hardware stack frame to share code
- * with the int 0x80 path.
- */
-ENTRY(ia32_sysenter_target)
- CFI_STARTPROC32 simple
- CFI_SIGNAL_FRAME
- CFI_DEF_CFA rsp,0
- CFI_REGISTER rsp,rbp
- SWAPGS_UNSAFE_STACK
- movq PER_CPU_VAR(kernel_stack), %rsp
- addq $(KERNEL_STACK_OFFSET),%rsp
- /*
- * No need to follow this irqs on/off section: the syscall
- * disabled irqs, here we enable it straight after entry:
- */
- ENABLE_INTERRUPTS(CLBR_NONE)
- movl %ebp,%ebp /* zero extension */
- pushq_cfi $__USER32_DS
- /*CFI_REL_OFFSET ss,0*/
- pushq_cfi %rbp
- CFI_REL_OFFSET rsp,0
- pushfq_cfi
- /*CFI_REL_OFFSET rflags,0*/
- movl 8*3-THREAD_SIZE+TI_sysenter_return(%rsp), %r10d
- CFI_REGISTER rip,r10
- pushq_cfi $__USER32_CS
- /*CFI_REL_OFFSET cs,0*/
- movl %eax, %eax
- pushq_cfi %r10
- CFI_REL_OFFSET rip,0
- pushq_cfi %rax
- cld
- SAVE_ARGS 0,0,1
- /* no need to do an access_ok check here because rbp has been
- 32bit zero extended */
-1: movl (%rbp),%ebp
- .section __ex_table,"a"
- .quad 1b,ia32_badarg
- .previous
- GET_THREAD_INFO(%r10)
- orl $TS_COMPAT,TI_status(%r10)
- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
- CFI_REMEMBER_STATE
- jnz sysenter_tracesys
- cmpq $(IA32_NR_syscalls-1),%rax
- ja ia32_badsys
-sysenter_do_call:
- IA32_ARG_FIXUP
-sysenter_dispatch:
- call *ia32_sys_call_table(,%rax,8)
- movq %rax,RAX-ARGOFFSET(%rsp)
- GET_THREAD_INFO(%r10)
- DISABLE_INTERRUPTS(CLBR_NONE)
- TRACE_IRQS_OFF
- testl $_TIF_ALLWORK_MASK,TI_flags(%r10)
- jnz sysexit_audit
-sysexit_from_sys_call:
- andl $~TS_COMPAT,TI_status(%r10)
- /* clear IF, that popfq doesn't enable interrupts early */
- andl $~0x200,EFLAGS-R11(%rsp)
- movl RIP-R11(%rsp),%edx /* User %eip */
- CFI_REGISTER rip,rdx
- RESTORE_ARGS 1,24,1,1,1,1
- xorq %r8,%r8
- xorq %r9,%r9
- xorq %r10,%r10
- xorq %r11,%r11
- popfq_cfi
- /*CFI_RESTORE rflags*/
- popq_cfi %rcx /* User %esp */
- CFI_REGISTER rsp,rcx
- TRACE_IRQS_ON
- ENABLE_INTERRUPTS_SYSEXIT32
-
-#ifdef CONFIG_AUDITSYSCALL
- .macro auditsys_entry_common
- movl %esi,%r9d /* 6th arg: 4th syscall arg */
- movl %edx,%r8d /* 5th arg: 3rd syscall arg */
- /* (already in %ecx) 4th arg: 2nd syscall arg */
- movl %ebx,%edx /* 3rd arg: 1st syscall arg */
- movl %eax,%esi /* 2nd arg: syscall number */
- movl $AUDIT_ARCH_I386,%edi /* 1st arg: audit arch */
- call audit_syscall_entry
- movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall number */
- cmpq $(IA32_NR_syscalls-1),%rax
- ja ia32_badsys
- movl %ebx,%edi /* reload 1st syscall arg */
- movl RCX-ARGOFFSET(%rsp),%esi /* reload 2nd syscall arg */
- movl RDX-ARGOFFSET(%rsp),%edx /* reload 3rd syscall arg */
- movl RSI-ARGOFFSET(%rsp),%ecx /* reload 4th syscall arg */
- movl RDI-ARGOFFSET(%rsp),%r8d /* reload 5th syscall arg */
- .endm
-
- .macro auditsys_exit exit
- testl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),TI_flags(%r10)
- jnz ia32_ret_from_sys_call
- TRACE_IRQS_ON
- sti
- movl %eax,%esi /* second arg, syscall return value */
- cmpl $0,%eax /* is it < 0? */
- setl %al /* 1 if so, 0 if not */
- movzbl %al,%edi /* zero-extend that into %edi */
- inc %edi /* first arg, 0->1(AUDITSC_SUCCESS), 1->2(AUDITSC_FAILURE) */
- call audit_syscall_exit
- GET_THREAD_INFO(%r10)
- movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall return value */
- movl $(_TIF_ALLWORK_MASK & ~_TIF_SYSCALL_AUDIT),%edi
- cli
- TRACE_IRQS_OFF
- testl %edi,TI_flags(%r10)
- jz \exit
- CLEAR_RREGS -ARGOFFSET
- jmp int_with_check
- .endm
-
-sysenter_auditsys:
- CFI_RESTORE_STATE
- auditsys_entry_common
- movl %ebp,%r9d /* reload 6th syscall arg */
- jmp sysenter_dispatch
-
-sysexit_audit:
- auditsys_exit sysexit_from_sys_call
-#endif
-
-sysenter_tracesys:
-#ifdef CONFIG_AUDITSYSCALL
- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r10)
- jz sysenter_auditsys
-#endif
- SAVE_REST
- CLEAR_RREGS
- movq $-ENOSYS,RAX(%rsp)/* ptrace can change this for a bad syscall */
- movq %rsp,%rdi /* &pt_regs -> arg1 */
- call syscall_trace_enter
- LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
- RESTORE_REST
- cmpq $(IA32_NR_syscalls-1),%rax
- ja int_ret_from_sys_call /* sysenter_tracesys has set RAX(%rsp) */
- jmp sysenter_do_call
- CFI_ENDPROC
-ENDPROC(ia32_sysenter_target)
-
-/*
- * 32bit SYSCALL instruction entry.
- *
- * Arguments:
- * %eax System call number.
- * %ebx Arg1
- * %ecx return EIP
- * %edx Arg3
- * %esi Arg4
- * %edi Arg5
- * %ebp Arg2 [note: not saved in the stack frame, should not be touched]
- * %esp user stack
- * 0(%esp) Arg6
- *
- * Interrupts off.
- *
- * This is purely a fast path. For anything complicated we use the int 0x80
- * path below. Set up a complete hardware stack frame to share code
- * with the int 0x80 path.
- */
-ENTRY(ia32_cstar_target)
- CFI_STARTPROC32 simple
- CFI_SIGNAL_FRAME
- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET
- CFI_REGISTER rip,rcx
- /*CFI_REGISTER rflags,r11*/
- SWAPGS_UNSAFE_STACK
- movl %esp,%r8d
- CFI_REGISTER rsp,r8
- movq PER_CPU_VAR(kernel_stack),%rsp
- /*
- * No need to follow this irqs on/off section: the syscall
- * disabled irqs and here we enable it straight after entry:
- */
- ENABLE_INTERRUPTS(CLBR_NONE)
- SAVE_ARGS 8,1,1
- movl %eax,%eax /* zero extension */
- movq %rax,ORIG_RAX-ARGOFFSET(%rsp)
- movq %rcx,RIP-ARGOFFSET(%rsp)
- CFI_REL_OFFSET rip,RIP-ARGOFFSET
- movq %rbp,RCX-ARGOFFSET(%rsp) /* this lies slightly to ptrace */
- movl %ebp,%ecx
- movq $__USER32_CS,CS-ARGOFFSET(%rsp)
- movq $__USER32_DS,SS-ARGOFFSET(%rsp)
- movq %r11,EFLAGS-ARGOFFSET(%rsp)
- /*CFI_REL_OFFSET rflags,EFLAGS-ARGOFFSET*/
- movq %r8,RSP-ARGOFFSET(%rsp)
- CFI_REL_OFFSET rsp,RSP-ARGOFFSET
- /* no need to do an access_ok check here because r8 has been
- 32bit zero extended */
- /* hardware stack frame is complete now */
-1: movl (%r8),%r9d
- .section __ex_table,"a"
- .quad 1b,ia32_badarg
- .previous
- GET_THREAD_INFO(%r10)
- orl $TS_COMPAT,TI_status(%r10)
- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
- CFI_REMEMBER_STATE
- jnz cstar_tracesys
- cmpq $IA32_NR_syscalls-1,%rax
- ja ia32_badsys
-cstar_do_call:
- IA32_ARG_FIXUP 1
-cstar_dispatch:
- call *ia32_sys_call_table(,%rax,8)
- movq %rax,RAX-ARGOFFSET(%rsp)
- GET_THREAD_INFO(%r10)
- DISABLE_INTERRUPTS(CLBR_NONE)
- TRACE_IRQS_OFF
- testl $_TIF_ALLWORK_MASK,TI_flags(%r10)
- jnz sysretl_audit
-sysretl_from_sys_call:
- andl $~TS_COMPAT,TI_status(%r10)
- RESTORE_ARGS 1,-ARG_SKIP,1,1,1
- movl RIP-ARGOFFSET(%rsp),%ecx
- CFI_REGISTER rip,rcx
- movl EFLAGS-ARGOFFSET(%rsp),%r11d
- /*CFI_REGISTER rflags,r11*/
- xorq %r10,%r10
- xorq %r9,%r9
- xorq %r8,%r8
- TRACE_IRQS_ON
- movl RSP-ARGOFFSET(%rsp),%esp
- CFI_RESTORE rsp
- USERGS_SYSRET32
-
-#ifdef CONFIG_AUDITSYSCALL
-cstar_auditsys:
- CFI_RESTORE_STATE
- movl %r9d,R9-ARGOFFSET(%rsp) /* register to be clobbered by call */
- auditsys_entry_common
- movl R9-ARGOFFSET(%rsp),%r9d /* reload 6th syscall arg */
- jmp cstar_dispatch
-
-sysretl_audit:
- auditsys_exit sysretl_from_sys_call
-#endif
-
-cstar_tracesys:
-#ifdef CONFIG_AUDITSYSCALL
- testl $(_TIF_WORK_SYSCALL_ENTRY & ~_TIF_SYSCALL_AUDIT),TI_flags(%r10)
- jz cstar_auditsys
-#endif
- xchgl %r9d,%ebp
- SAVE_REST
- CLEAR_RREGS 0, r9
- movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */
- movq %rsp,%rdi /* &pt_regs -> arg1 */
- call syscall_trace_enter
- LOAD_ARGS32 ARGOFFSET, 1 /* reload args from stack in case ptrace changed it */
- RESTORE_REST
- xchgl %ebp,%r9d
- cmpq $(IA32_NR_syscalls-1),%rax
- ja int_ret_from_sys_call /* cstar_tracesys has set RAX(%rsp) */
- jmp cstar_do_call
-END(ia32_cstar_target)
-
-ia32_badarg:
- movq $-EFAULT,%rax
- jmp ia32_sysret
- CFI_ENDPROC
-
-/*
- * Emulated IA32 system calls via int 0x80.
- *
- * Arguments:
- * %eax System call number.
- * %ebx Arg1
- * %ecx Arg2
- * %edx Arg3
- * %esi Arg4
- * %edi Arg5
- * %ebp Arg6 [note: not saved in the stack frame, should not be touched]
- *
- * Notes:
- * Uses the same stack frame as the x86-64 version.
- * All registers except %eax must be saved (but ptrace may violate that)
- * Arguments are zero extended. For system calls that want sign extension and
- * take long arguments a wrapper is needed. Most calls can just be called
- * directly.
- * Assumes it is only called from user space and entered with interrupts off.
- */
-
-ENTRY(ia32_syscall)
- CFI_STARTPROC32 simple
- CFI_SIGNAL_FRAME
- CFI_DEF_CFA rsp,SS+8-RIP
- /*CFI_REL_OFFSET ss,SS-RIP*/
- CFI_REL_OFFSET rsp,RSP-RIP
- /*CFI_REL_OFFSET rflags,EFLAGS-RIP*/
- /*CFI_REL_OFFSET cs,CS-RIP*/
- CFI_REL_OFFSET rip,RIP-RIP
- PARAVIRT_ADJUST_EXCEPTION_FRAME
- SWAPGS
- /*
- * No need to follow this irqs on/off section: the syscall
- * disabled irqs and here we enable it straight after entry:
- */
- ENABLE_INTERRUPTS(CLBR_NONE)
- movl %eax,%eax
- pushq_cfi %rax
- cld
- /* note the registers are not zero extended to the sf.
- this could be a problem. */
- SAVE_ARGS 0,0,1
- GET_THREAD_INFO(%r10)
- orl $TS_COMPAT,TI_status(%r10)
- testl $_TIF_WORK_SYSCALL_ENTRY,TI_flags(%r10)
- jnz ia32_tracesys
- cmpq $(IA32_NR_syscalls-1),%rax
- ja ia32_badsys
-ia32_do_call:
- IA32_ARG_FIXUP
- call *ia32_sys_call_table(,%rax,8) # xxx: rip relative
-ia32_sysret:
- movq %rax,RAX-ARGOFFSET(%rsp)
-ia32_ret_from_sys_call:
- CLEAR_RREGS -ARGOFFSET
- jmp int_ret_from_sys_call
-
-ia32_tracesys:
- SAVE_REST
- CLEAR_RREGS
- movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */
- movq %rsp,%rdi /* &pt_regs -> arg1 */
- call syscall_trace_enter
- LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
- RESTORE_REST
- cmpq $(IA32_NR_syscalls-1),%rax
- ja int_ret_from_sys_call /* ia32_tracesys has set RAX(%rsp) */
- jmp ia32_do_call
-END(ia32_syscall)
-
-ia32_badsys:
- movq $0,ORIG_RAX-ARGOFFSET(%rsp)
- movq $-ENOSYS,%rax
- jmp ia32_sysret
-
-quiet_ni_syscall:
- movq $-ENOSYS,%rax
- ret
- CFI_ENDPROC
-
- .macro PTREGSCALL label, func, arg
- .globl \label
-\label:
- leaq \func(%rip),%rax
- leaq -ARGOFFSET+8(%rsp),\arg /* 8 for return address */
- jmp ia32_ptregs_common
- .endm
-
- CFI_STARTPROC32
-
- PTREGSCALL stub32_rt_sigreturn, sys32_rt_sigreturn, %rdi
- PTREGSCALL stub32_sigreturn, sys32_sigreturn, %rdi
- PTREGSCALL stub32_sigaltstack, sys32_sigaltstack, %rdx
- PTREGSCALL stub32_execve, sys32_execve, %rcx
- PTREGSCALL stub32_fork, sys_fork, %rdi
- PTREGSCALL stub32_clone, sys32_clone, %rdx
- PTREGSCALL stub32_vfork, sys_vfork, %rdi
- PTREGSCALL stub32_iopl, sys_iopl, %rsi
-
-ENTRY(ia32_ptregs_common)
- popq %r11
- CFI_ENDPROC
- CFI_STARTPROC32 simple
- CFI_SIGNAL_FRAME
- CFI_DEF_CFA rsp,SS+8-ARGOFFSET
- CFI_REL_OFFSET rax,RAX-ARGOFFSET
- CFI_REL_OFFSET rcx,RCX-ARGOFFSET
- CFI_REL_OFFSET rdx,RDX-ARGOFFSET
- CFI_REL_OFFSET rsi,RSI-ARGOFFSET
- CFI_REL_OFFSET rdi,RDI-ARGOFFSET
- CFI_REL_OFFSET rip,RIP-ARGOFFSET
-/* CFI_REL_OFFSET cs,CS-ARGOFFSET*/
-/* CFI_REL_OFFSET rflags,EFLAGS-ARGOFFSET*/
- CFI_REL_OFFSET rsp,RSP-ARGOFFSET
-/* CFI_REL_OFFSET ss,SS-ARGOFFSET*/
- SAVE_REST
- call *%rax
- RESTORE_REST
- jmp ia32_sysret /* misbalances the return cache */
- CFI_ENDPROC
-END(ia32_ptregs_common)
-
- .section .rodata,"a"
- .align 8
-ia32_sys_call_table:
- .quad sys_restart_syscall
- .quad sys_exit
- .quad stub32_fork
- .quad sys_read
- .quad sys_write
- .quad compat_sys_open /* 5 */
- .quad sys_close
- .quad sys32_waitpid
- .quad sys_creat
- .quad sys_link
- .quad sys_unlink /* 10 */
- .quad stub32_execve
- .quad sys_chdir
- .quad compat_sys_time
- .quad sys_mknod
- .quad sys_chmod /* 15 */
- .quad sys_lchown16
- .quad quiet_ni_syscall /* old break syscall holder */
- .quad sys_stat
- .quad sys32_lseek
- .quad sys_getpid /* 20 */
- .quad compat_sys_mount /* mount */
- .quad sys_oldumount /* old_umount */
- .quad sys_setuid16
- .quad sys_getuid16
- .quad compat_sys_stime /* stime */ /* 25 */
- .quad compat_sys_ptrace /* ptrace */
- .quad sys_alarm
- .quad sys_fstat /* (old)fstat */
- .quad sys_pause
- .quad compat_sys_utime /* 30 */
- .quad quiet_ni_syscall /* old stty syscall holder */
- .quad quiet_ni_syscall /* old gtty syscall holder */
- .quad sys_access
- .quad sys_nice
- .quad quiet_ni_syscall /* 35 */ /* old ftime syscall holder */
- .quad sys_sync
- .quad sys32_kill
- .quad sys_rename
- .quad sys_mkdir
- .quad sys_rmdir /* 40 */
- .quad sys_dup
- .quad sys_pipe
- .quad compat_sys_times
- .quad quiet_ni_syscall /* old prof syscall holder */
- .quad sys_brk /* 45 */
- .quad sys_setgid16
- .quad sys_getgid16
- .quad sys_signal
- .quad sys_geteuid16
- .quad sys_getegid16 /* 50 */
- .quad sys_acct
- .quad sys_umount /* new_umount */
- .quad quiet_ni_syscall /* old lock syscall holder */
- .quad compat_sys_ioctl
- .quad compat_sys_fcntl64 /* 55 */
- .quad quiet_ni_syscall /* old mpx syscall holder */
- .quad sys_setpgid
- .quad quiet_ni_syscall /* old ulimit syscall holder */
- .quad sys_olduname
- .quad sys_umask /* 60 */
- .quad sys_chroot
- .quad compat_sys_ustat
- .quad sys_dup2
- .quad sys_getppid
- .quad sys_getpgrp /* 65 */
- .quad sys_setsid
- .quad sys32_sigaction
- .quad sys_sgetmask
- .quad sys_ssetmask
- .quad sys_setreuid16 /* 70 */
- .quad sys_setregid16
- .quad sys32_sigsuspend
- .quad compat_sys_sigpending
- .quad sys_sethostname
- .quad compat_sys_setrlimit /* 75 */
- .quad compat_sys_old_getrlimit /* old_getrlimit */
- .quad compat_sys_getrusage
- .quad compat_sys_gettimeofday
- .quad compat_sys_settimeofday
- .quad sys_getgroups16 /* 80 */
- .quad sys_setgroups16
- .quad compat_sys_old_select
- .quad sys_symlink
- .quad sys_lstat
- .quad sys_readlink /* 85 */
- .quad sys_uselib
- .quad sys_swapon
- .quad sys_reboot
- .quad compat_sys_old_readdir
- .quad sys32_mmap /* 90 */
- .quad sys_munmap
- .quad sys_truncate
- .quad sys_ftruncate
- .quad sys_fchmod
- .quad sys_fchown16 /* 95 */
- .quad sys_getpriority
- .quad sys_setpriority
- .quad quiet_ni_syscall /* old profil syscall holder */
- .quad compat_sys_statfs
- .quad compat_sys_fstatfs /* 100 */
- .quad sys_ioperm
- .quad compat_sys_socketcall
- .quad sys_syslog
- .quad compat_sys_setitimer
- .quad compat_sys_getitimer /* 105 */
- .quad compat_sys_newstat
- .quad compat_sys_newlstat
- .quad compat_sys_newfstat
- .quad sys_uname
- .quad stub32_iopl /* 110 */
- .quad sys_vhangup
- .quad quiet_ni_syscall /* old "idle" system call */
- .quad sys32_vm86_warning /* vm86old */
- .quad compat_sys_wait4
- .quad sys_swapoff /* 115 */
- .quad compat_sys_sysinfo
- .quad sys32_ipc
- .quad sys_fsync
- .quad stub32_sigreturn
- .quad stub32_clone /* 120 */
- .quad sys_setdomainname
- .quad sys_newuname
- .quad sys_modify_ldt
- .quad compat_sys_adjtimex
- .quad sys32_mprotect /* 125 */
- .quad compat_sys_sigprocmask
- .quad quiet_ni_syscall /* create_module */
- .quad sys_init_module
- .quad sys_delete_module
- .quad quiet_ni_syscall /* 130 get_kernel_syms */
- .quad sys32_quotactl
- .quad sys_getpgid
- .quad sys_fchdir
- .quad quiet_ni_syscall /* bdflush */
- .quad sys_sysfs /* 135 */
- .quad sys_personality
- .quad quiet_ni_syscall /* for afs_syscall */
- .quad sys_setfsuid16
- .quad sys_setfsgid16
- .quad sys_llseek /* 140 */
- .quad compat_sys_getdents
- .quad compat_sys_select
- .quad sys_flock
- .quad sys_msync
- .quad compat_sys_readv /* 145 */
- .quad compat_sys_writev
- .quad sys_getsid
- .quad sys_fdatasync
- .quad compat_sys_sysctl /* sysctl */
- .quad sys_mlock /* 150 */
- .quad sys_munlock
- .quad sys_mlockall
- .quad sys_munlockall
- .quad sys_sched_setparam
- .quad sys_sched_getparam /* 155 */
- .quad sys_sched_setscheduler
- .quad sys_sched_getscheduler
- .quad sys_sched_yield
- .quad sys_sched_get_priority_max
- .quad sys_sched_get_priority_min /* 160 */
- .quad sys32_sched_rr_get_interval
- .quad compat_sys_nanosleep
- .quad sys_mremap
- .quad sys_setresuid16
- .quad sys_getresuid16 /* 165 */
- .quad sys32_vm86_warning /* vm86 */
- .quad quiet_ni_syscall /* query_module */
- .quad sys_poll
- .quad compat_sys_nfsservctl
- .quad sys_setresgid16 /* 170 */
- .quad sys_getresgid16
- .quad sys_prctl
- .quad stub32_rt_sigreturn
- .quad sys32_rt_sigaction
- .quad sys32_rt_sigprocmask /* 175 */
- .quad sys32_rt_sigpending
- .quad compat_sys_rt_sigtimedwait
- .quad sys32_rt_sigqueueinfo
- .quad sys_rt_sigsuspend
- .quad sys32_pread /* 180 */
- .quad sys32_pwrite
- .quad sys_chown16
- .quad sys_getcwd
- .quad sys_capget
- .quad sys_capset
- .quad stub32_sigaltstack
- .quad sys32_sendfile
- .quad quiet_ni_syscall /* streams1 */
- .quad quiet_ni_syscall /* streams2 */
- .quad stub32_vfork /* 190 */
- .quad compat_sys_getrlimit
- .quad sys_mmap_pgoff
- .quad sys32_truncate64
- .quad sys32_ftruncate64
- .quad sys32_stat64 /* 195 */
- .quad sys32_lstat64
- .quad sys32_fstat64
- .quad sys_lchown
- .quad sys_getuid
- .quad sys_getgid /* 200 */
- .quad sys_geteuid
- .quad sys_getegid
- .quad sys_setreuid
- .quad sys_setregid
- .quad sys_getgroups /* 205 */
- .quad sys_setgroups
- .quad sys_fchown
- .quad sys_setresuid
- .quad sys_getresuid
- .quad sys_setresgid /* 210 */
- .quad sys_getresgid
- .quad sys_chown
- .quad sys_setuid
- .quad sys_setgid
- .quad sys_setfsuid /* 215 */
- .quad sys_setfsgid
- .quad sys_pivot_root
- .quad sys_mincore
- .quad sys_madvise
- .quad compat_sys_getdents64 /* 220 getdents64 */
- .quad compat_sys_fcntl64
- .quad quiet_ni_syscall /* tux */
- .quad quiet_ni_syscall /* security */
- .quad sys_gettid
- .quad sys32_readahead /* 225 */
- .quad sys_setxattr
- .quad sys_lsetxattr
- .quad sys_fsetxattr
- .quad sys_getxattr
- .quad sys_lgetxattr /* 230 */
- .quad sys_fgetxattr
- .quad sys_listxattr
- .quad sys_llistxattr
- .quad sys_flistxattr
- .quad sys_removexattr /* 235 */
- .quad sys_lremovexattr
- .quad sys_fremovexattr
- .quad sys_tkill
- .quad sys_sendfile64
- .quad compat_sys_futex /* 240 */
- .quad compat_sys_sched_setaffinity
- .quad compat_sys_sched_getaffinity
- .quad sys_set_thread_area
- .quad sys_get_thread_area
- .quad compat_sys_io_setup /* 245 */
- .quad sys_io_destroy
- .quad compat_sys_io_getevents
- .quad compat_sys_io_submit
- .quad sys_io_cancel
- .quad sys32_fadvise64 /* 250 */
- .quad quiet_ni_syscall /* free_huge_pages */
- .quad sys_exit_group
- .quad sys32_lookup_dcookie
- .quad sys_epoll_create
- .quad sys_epoll_ctl /* 255 */
- .quad sys_epoll_wait
- .quad sys_remap_file_pages
- .quad sys_set_tid_address
- .quad compat_sys_timer_create
- .quad compat_sys_timer_settime /* 260 */
- .quad compat_sys_timer_gettime
- .quad sys_timer_getoverrun
- .quad sys_timer_delete
- .quad compat_sys_clock_settime
- .quad compat_sys_clock_gettime /* 265 */
- .quad compat_sys_clock_getres
- .quad compat_sys_clock_nanosleep
- .quad compat_sys_statfs64
- .quad compat_sys_fstatfs64
- .quad sys_tgkill /* 270 */
- .quad compat_sys_utimes
- .quad sys32_fadvise64_64
- .quad quiet_ni_syscall /* sys_vserver */
- .quad sys_mbind
- .quad compat_sys_get_mempolicy /* 275 */
- .quad sys_set_mempolicy
- .quad compat_sys_mq_open
- .quad sys_mq_unlink
- .quad compat_sys_mq_timedsend
- .quad compat_sys_mq_timedreceive /* 280 */
- .quad compat_sys_mq_notify
- .quad compat_sys_mq_getsetattr
- .quad compat_sys_kexec_load /* reserved for kexec */
- .quad compat_sys_waitid
- .quad quiet_ni_syscall /* 285: sys_altroot */
- .quad sys_add_key
- .quad sys_request_key
- .quad sys_keyctl
- .quad sys_ioprio_set
- .quad sys_ioprio_get /* 290 */
- .quad sys_inotify_init
- .quad sys_inotify_add_watch
- .quad sys_inotify_rm_watch
- .quad sys_migrate_pages
- .quad compat_sys_openat /* 295 */
- .quad sys_mkdirat
- .quad sys_mknodat
- .quad sys_fchownat
- .quad compat_sys_futimesat
- .quad sys32_fstatat /* 300 */
- .quad sys_unlinkat
- .quad sys_renameat
- .quad sys_linkat
- .quad sys_symlinkat
- .quad sys_readlinkat /* 305 */
- .quad sys_fchmodat
- .quad sys_faccessat
- .quad compat_sys_pselect6
- .quad compat_sys_ppoll
- .quad sys_unshare /* 310 */
- .quad compat_sys_set_robust_list
- .quad compat_sys_get_robust_list
- .quad sys_splice
- .quad sys32_sync_file_range
- .quad sys_tee /* 315 */
- .quad compat_sys_vmsplice
- .quad compat_sys_move_pages
- .quad sys_getcpu
- .quad sys_epoll_pwait
- .quad compat_sys_utimensat /* 320 */
- .quad compat_sys_signalfd
- .quad sys_timerfd_create
- .quad sys_eventfd
- .quad sys32_fallocate
- .quad compat_sys_timerfd_settime /* 325 */
- .quad compat_sys_timerfd_gettime
- .quad compat_sys_signalfd4
- .quad sys_eventfd2
- .quad sys_epoll_create1
- .quad sys_dup3 /* 330 */
- .quad sys_pipe2
- .quad sys_inotify_init1
- .quad compat_sys_preadv
- .quad compat_sys_pwritev
- .quad compat_sys_rt_tgsigqueueinfo /* 335 */
- .quad sys_perf_event_open
- .quad compat_sys_recvmmsg
- .quad sys_fanotify_init
- .quad sys32_fanotify_mark
- .quad sys_prlimit64 /* 340 */
- .quad sys_name_to_handle_at
- .quad compat_sys_open_by_handle_at
- .quad compat_sys_clock_adjtime
- .quad sys_syncfs
-ia32_syscall_end:
diff --git a/arch/x86/ia32/ipc32.c b/arch/x86/ia32/ipc32.c
deleted file mode 100644
index 29cdcd02ead3..000000000000
--- a/arch/x86/ia32/ipc32.c
+++ /dev/null
@@ -1,54 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/spinlock.h>
-#include <linux/list.h>
-#include <linux/syscalls.h>
-#include <linux/time.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/ipc.h>
-#include <linux/compat.h>
-#include <asm/sys_ia32.h>
-
-asmlinkage long sys32_ipc(u32 call, int first, int second, int third,
- compat_uptr_t ptr, u32 fifth)
-{
- int version;
-
- version = call >> 16; /* hack for backward compatibility */
- call &= 0xffff;
-
- switch (call) {
- case SEMOP:
- /* struct sembuf is the same on 32 and 64bit :)) */
- return sys_semtimedop(first, compat_ptr(ptr), second, NULL);
- case SEMTIMEDOP:
- return compat_sys_semtimedop(first, compat_ptr(ptr), second,
- compat_ptr(fifth));
- case SEMGET:
- return sys_semget(first, second, third);
- case SEMCTL:
- return compat_sys_semctl(first, second, third, compat_ptr(ptr));
-
- case MSGSND:
- return compat_sys_msgsnd(first, second, third, compat_ptr(ptr));
- case MSGRCV:
- return compat_sys_msgrcv(first, second, fifth, third,
- version, compat_ptr(ptr));
- case MSGGET:
- return sys_msgget((key_t) first, second);
- case MSGCTL:
- return compat_sys_msgctl(first, second, compat_ptr(ptr));
-
- case SHMAT:
- return compat_sys_shmat(first, second, third, version,
- compat_ptr(ptr));
- case SHMDT:
- return sys_shmdt(compat_ptr(ptr));
- case SHMGET:
- return sys_shmget(first, (unsigned)second, third);
- case SHMCTL:
- return compat_sys_shmctl(first, second, compat_ptr(ptr));
- }
- return -ENOSYS;
-}
diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/ia32/sys_ia32.c
deleted file mode 100644
index 5852519b2d0f..000000000000
--- a/arch/x86/ia32/sys_ia32.c
+++ /dev/null
@@ -1,556 +0,0 @@
-/*
- * sys_ia32.c: Conversion between 32bit and 64bit native syscalls. Based on
- * sys_sparc32
- *
- * Copyright (C) 2000 VA Linux Co
- * Copyright (C) 2000 Don Dugger <n0ano@valinux.com>
- * Copyright (C) 1999 Arun Sharma <arun.sharma@intel.com>
- * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
- * Copyright (C) 2000 Hewlett-Packard Co.
- * Copyright (C) 2000 David Mosberger-Tang <davidm@hpl.hp.com>
- * Copyright (C) 2000,2001,2002 Andi Kleen, SuSE Labs (x86-64 port)
- *
- * These routines maintain argument size conversion between 32bit and 64bit
- * environment. In 2.5 most of this should be moved to a generic directory.
- *
- * This file assumes that there is a hole at the end of user address space.
- *
- * Some of the functions are LE specific currently. These are
- * hopefully all marked. This should be fixed.
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/fs.h>
-#include <linux/file.h>
-#include <linux/signal.h>
-#include <linux/syscalls.h>
-#include <linux/times.h>
-#include <linux/utsname.h>
-#include <linux/mm.h>
-#include <linux/uio.h>
-#include <linux/poll.h>
-#include <linux/personality.h>
-#include <linux/stat.h>
-#include <linux/rwsem.h>
-#include <linux/compat.h>
-#include <linux/vfs.h>
-#include <linux/ptrace.h>
-#include <linux/highuid.h>
-#include <linux/sysctl.h>
-#include <linux/slab.h>
-#include <asm/mman.h>
-#include <asm/types.h>
-#include <asm/uaccess.h>
-#include <asm/atomic.h>
-#include <asm/vgtod.h>
-#include <asm/sys_ia32.h>
-
-#define AA(__x) ((unsigned long)(__x))
-
-
-asmlinkage long sys32_truncate64(const char __user *filename,
- unsigned long offset_low,
- unsigned long offset_high)
-{
- return sys_truncate(filename, ((loff_t) offset_high << 32) | offset_low);
-}
-
-asmlinkage long sys32_ftruncate64(unsigned int fd, unsigned long offset_low,
- unsigned long offset_high)
-{
- return sys_ftruncate(fd, ((loff_t) offset_high << 32) | offset_low);
-}
-
-/*
- * Another set for IA32/LFS -- x86_64 struct stat is different due to
- * support for 64bit inode numbers.
- */
-static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat)
-{
- typeof(ubuf->st_uid) uid = 0;
- typeof(ubuf->st_gid) gid = 0;
- SET_UID(uid, stat->uid);
- SET_GID(gid, stat->gid);
- if (!access_ok(VERIFY_WRITE, ubuf, sizeof(struct stat64)) ||
- __put_user(huge_encode_dev(stat->dev), &ubuf->st_dev) ||
- __put_user(stat->ino, &ubuf->__st_ino) ||
- __put_user(stat->ino, &ubuf->st_ino) ||
- __put_user(stat->mode, &ubuf->st_mode) ||
- __put_user(stat->nlink, &ubuf->st_nlink) ||
- __put_user(uid, &ubuf->st_uid) ||
- __put_user(gid, &ubuf->st_gid) ||
- __put_user(huge_encode_dev(stat->rdev), &ubuf->st_rdev) ||
- __put_user(stat->size, &ubuf->st_size) ||
- __put_user(stat->atime.tv_sec, &ubuf->st_atime) ||
- __put_user(stat->atime.tv_nsec, &ubuf->st_atime_nsec) ||
- __put_user(stat->mtime.tv_sec, &ubuf->st_mtime) ||
- __put_user(stat->mtime.tv_nsec, &ubuf->st_mtime_nsec) ||
- __put_user(stat->ctime.tv_sec, &ubuf->st_ctime) ||
- __put_user(stat->ctime.tv_nsec, &ubuf->st_ctime_nsec) ||
- __put_user(stat->blksize, &ubuf->st_blksize) ||
- __put_user(stat->blocks, &ubuf->st_blocks))
- return -EFAULT;
- return 0;
-}
-
-asmlinkage long sys32_stat64(const char __user *filename,
- struct stat64 __user *statbuf)
-{
- struct kstat stat;
- int ret = vfs_stat(filename, &stat);
-
- if (!ret)
- ret = cp_stat64(statbuf, &stat);
- return ret;
-}
-
-asmlinkage long sys32_lstat64(const char __user *filename,
- struct stat64 __user *statbuf)
-{
- struct kstat stat;
- int ret = vfs_lstat(filename, &stat);
- if (!ret)
- ret = cp_stat64(statbuf, &stat);
- return ret;
-}
-
-asmlinkage long sys32_fstat64(unsigned int fd, struct stat64 __user *statbuf)
-{
- struct kstat stat;
- int ret = vfs_fstat(fd, &stat);
- if (!ret)
- ret = cp_stat64(statbuf, &stat);
- return ret;
-}
-
-asmlinkage long sys32_fstatat(unsigned int dfd, const char __user *filename,
- struct stat64 __user *statbuf, int flag)
-{
- struct kstat stat;
- int error;
-
- error = vfs_fstatat(dfd, filename, &stat, flag);
- if (error)
- return error;
- return cp_stat64(statbuf, &stat);
-}
-
-/*
- * Linux/i386 didn't use to be able to handle more than
- * 4 system call parameters, so these system calls used a memory
- * block for parameter passing..
- */
-
-struct mmap_arg_struct32 {
- unsigned int addr;
- unsigned int len;
- unsigned int prot;
- unsigned int flags;
- unsigned int fd;
- unsigned int offset;
-};
-
-asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *arg)
-{
- struct mmap_arg_struct32 a;
-
- if (copy_from_user(&a, arg, sizeof(a)))
- return -EFAULT;
-
- if (a.offset & ~PAGE_MASK)
- return -EINVAL;
-
- return sys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd,
- a.offset>>PAGE_SHIFT);
-}
-
-asmlinkage long sys32_mprotect(unsigned long start, size_t len,
- unsigned long prot)
-{
- return sys_mprotect(start, len, prot);
-}
-
-asmlinkage long sys32_rt_sigaction(int sig, struct sigaction32 __user *act,
- struct sigaction32 __user *oact,
- unsigned int sigsetsize)
-{
- struct k_sigaction new_ka, old_ka;
- int ret;
- compat_sigset_t set32;
-
- /* XXX: Don't preclude handling different sized sigset_t's. */
- if (sigsetsize != sizeof(compat_sigset_t))
- return -EINVAL;
-
- if (act) {
- compat_uptr_t handler, restorer;
-
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
- __get_user(restorer, &act->sa_restorer) ||
- __copy_from_user(&set32, &act->sa_mask,
- sizeof(compat_sigset_t)))
- return -EFAULT;
- new_ka.sa.sa_handler = compat_ptr(handler);
- new_ka.sa.sa_restorer = compat_ptr(restorer);
-
- /*
- * FIXME: here we rely on _COMPAT_NSIG_WORS to be >=
- * than _NSIG_WORDS << 1
- */
- switch (_NSIG_WORDS) {
- case 4: new_ka.sa.sa_mask.sig[3] = set32.sig[6]
- | (((long)set32.sig[7]) << 32);
- case 3: new_ka.sa.sa_mask.sig[2] = set32.sig[4]
- | (((long)set32.sig[5]) << 32);
- case 2: new_ka.sa.sa_mask.sig[1] = set32.sig[2]
- | (((long)set32.sig[3]) << 32);
- case 1: new_ka.sa.sa_mask.sig[0] = set32.sig[0]
- | (((long)set32.sig[1]) << 32);
- }
- }
-
- ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
- if (!ret && oact) {
- /*
- * FIXME: here we rely on _COMPAT_NSIG_WORS to be >=
- * than _NSIG_WORDS << 1
- */
- switch (_NSIG_WORDS) {
- case 4:
- set32.sig[7] = (old_ka.sa.sa_mask.sig[3] >> 32);
- set32.sig[6] = old_ka.sa.sa_mask.sig[3];
- case 3:
- set32.sig[5] = (old_ka.sa.sa_mask.sig[2] >> 32);
- set32.sig[4] = old_ka.sa.sa_mask.sig[2];
- case 2:
- set32.sig[3] = (old_ka.sa.sa_mask.sig[1] >> 32);
- set32.sig[2] = old_ka.sa.sa_mask.sig[1];
- case 1:
- set32.sig[1] = (old_ka.sa.sa_mask.sig[0] >> 32);
- set32.sig[0] = old_ka.sa.sa_mask.sig[0];
- }
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(ptr_to_compat(old_ka.sa.sa_handler),
- &oact->sa_handler) ||
- __put_user(ptr_to_compat(old_ka.sa.sa_restorer),
- &oact->sa_restorer) ||
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
- __copy_to_user(&oact->sa_mask, &set32,
- sizeof(compat_sigset_t)))
- return -EFAULT;
- }
-
- return ret;
-}
-
-asmlinkage long sys32_sigaction(int sig, struct old_sigaction32 __user *act,
- struct old_sigaction32 __user *oact)
-{
- struct k_sigaction new_ka, old_ka;
- int ret;
-
- if (act) {
- compat_old_sigset_t mask;
- compat_uptr_t handler, restorer;
-
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
- __get_user(handler, &act->sa_handler) ||
- __get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
- __get_user(restorer, &act->sa_restorer) ||
- __get_user(mask, &act->sa_mask))
- return -EFAULT;
-
- new_ka.sa.sa_handler = compat_ptr(handler);
- new_ka.sa.sa_restorer = compat_ptr(restorer);
-
- siginitset(&new_ka.sa.sa_mask, mask);
- }
-
- ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
-
- if (!ret && oact) {
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
- __put_user(ptr_to_compat(old_ka.sa.sa_handler),
- &oact->sa_handler) ||
- __put_user(ptr_to_compat(old_ka.sa.sa_restorer),
- &oact->sa_restorer) ||
- __put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
- __put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
- return -EFAULT;
- }
-
- return ret;
-}
-
-asmlinkage long sys32_rt_sigprocmask(int how, compat_sigset_t __user *set,
- compat_sigset_t __user *oset,
- unsigned int sigsetsize)
-{
- sigset_t s;
- compat_sigset_t s32;
- int ret;
- mm_segment_t old_fs = get_fs();
-
- if (set) {
- if (copy_from_user(&s32, set, sizeof(compat_sigset_t)))
- return -EFAULT;
- switch (_NSIG_WORDS) {
- case 4: s.sig[3] = s32.sig[6] | (((long)s32.sig[7]) << 32);
- case 3: s.sig[2] = s32.sig[4] | (((long)s32.sig[5]) << 32);
- case 2: s.sig[1] = s32.sig[2] | (((long)s32.sig[3]) << 32);
- case 1: s.sig[0] = s32.sig[0] | (((long)s32.sig[1]) << 32);
- }
- }
- set_fs(KERNEL_DS);
- ret = sys_rt_sigprocmask(how,
- set ? (sigset_t __user *)&s : NULL,
- oset ? (sigset_t __user *)&s : NULL,
- sigsetsize);
- set_fs(old_fs);
- if (ret)
- return ret;
- if (oset) {
- switch (_NSIG_WORDS) {
- case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
- case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
- case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
- case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
- }
- if (copy_to_user(oset, &s32, sizeof(compat_sigset_t)))
- return -EFAULT;
- }
- return 0;
-}
-
-asmlinkage long sys32_alarm(unsigned int seconds)
-{
- return alarm_setitimer(seconds);
-}
-
-asmlinkage long sys32_waitpid(compat_pid_t pid, unsigned int *stat_addr,
- int options)
-{
- return compat_sys_wait4(pid, stat_addr, options, NULL);
-}
-
-/* 32-bit timeval and related flotsam. */
-
-asmlinkage long sys32_sysfs(int option, u32 arg1, u32 arg2)
-{
- return sys_sysfs(option, arg1, arg2);
-}
-
-asmlinkage long sys32_sched_rr_get_interval(compat_pid_t pid,
- struct compat_timespec __user *interval)
-{
- struct timespec t;
- int ret;
- mm_segment_t old_fs = get_fs();
-
- set_fs(KERNEL_DS);
- ret = sys_sched_rr_get_interval(pid, (struct timespec __user *)&t);
- set_fs(old_fs);
- if (put_compat_timespec(&t, interval))
- return -EFAULT;
- return ret;
-}
-
-asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *set,
- compat_size_t sigsetsize)
-{
- sigset_t s;
- compat_sigset_t s32;
- int ret;
- mm_segment_t old_fs = get_fs();
-
- set_fs(KERNEL_DS);
- ret = sys_rt_sigpending((sigset_t __user *)&s, sigsetsize);
- set_fs(old_fs);
- if (!ret) {
- switch (_NSIG_WORDS) {
- case 4: s32.sig[7] = (s.sig[3] >> 32); s32.sig[6] = s.sig[3];
- case 3: s32.sig[5] = (s.sig[2] >> 32); s32.sig[4] = s.sig[2];
- case 2: s32.sig[3] = (s.sig[1] >> 32); s32.sig[2] = s.sig[1];
- case 1: s32.sig[1] = (s.sig[0] >> 32); s32.sig[0] = s.sig[0];
- }
- if (copy_to_user(set, &s32, sizeof(compat_sigset_t)))
- return -EFAULT;
- }
- return ret;
-}
-
-asmlinkage long sys32_rt_sigqueueinfo(int pid, int sig,
- compat_siginfo_t __user *uinfo)
-{
- siginfo_t info;
- int ret;
- mm_segment_t old_fs = get_fs();
-
- if (copy_siginfo_from_user32(&info, uinfo))
- return -EFAULT;
- set_fs(KERNEL_DS);
- ret = sys_rt_sigqueueinfo(pid, sig, (siginfo_t __user *)&info);
- set_fs(old_fs);
- return ret;
-}
-
-/* warning: next two assume little endian */
-asmlinkage long sys32_pread(unsigned int fd, char __user *ubuf, u32 count,
- u32 poslo, u32 poshi)
-{
- return sys_pread64(fd, ubuf, count,
- ((loff_t)AA(poshi) << 32) | AA(poslo));
-}
-
-asmlinkage long sys32_pwrite(unsigned int fd, const char __user *ubuf,
- u32 count, u32 poslo, u32 poshi)
-{
- return sys_pwrite64(fd, ubuf, count,
- ((loff_t)AA(poshi) << 32) | AA(poslo));
-}
-
-
-asmlinkage long sys32_personality(unsigned long personality)
-{
- int ret;
-
- if (personality(current->personality) == PER_LINUX32 &&
- personality == PER_LINUX)
- personality = PER_LINUX32;
- ret = sys_personality(personality);
- if (ret == PER_LINUX32)
- ret = PER_LINUX;
- return ret;
-}
-
-asmlinkage long sys32_sendfile(int out_fd, int in_fd,
- compat_off_t __user *offset, s32 count)
-{
- mm_segment_t old_fs = get_fs();
- int ret;
- off_t of;
-
- if (offset && get_user(of, offset))
- return -EFAULT;
-
- set_fs(KERNEL_DS);
- ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL,
- count);
- set_fs(old_fs);
-
- if (offset && put_user(of, offset))
- return -EFAULT;
- return ret;
-}
-
-asmlinkage long sys32_execve(const char __user *name, compat_uptr_t __user *argv,
- compat_uptr_t __user *envp, struct pt_regs *regs)
-{
- long error;
- char *filename;
-
- filename = getname(name);
- error = PTR_ERR(filename);
- if (IS_ERR(filename))
- return error;
- error = compat_do_execve(filename, argv, envp, regs);
- putname(filename);
- return error;
-}
-
-asmlinkage long sys32_clone(unsigned int clone_flags, unsigned int newsp,
- struct pt_regs *regs)
-{
- void __user *parent_tid = (void __user *)regs->dx;
- void __user *child_tid = (void __user *)regs->di;
-
- if (!newsp)
- newsp = regs->sp;
- return do_fork(clone_flags, newsp, regs, 0, parent_tid, child_tid);
-}
-
-/*
- * Some system calls that need sign extended arguments. This could be
- * done by a generic wrapper.
- */
-long sys32_lseek(unsigned int fd, int offset, unsigned int whence)
-{
- return sys_lseek(fd, offset, whence);
-}
-
-long sys32_kill(int pid, int sig)
-{
- return sys_kill(pid, sig);
-}
-
-long sys32_fadvise64_64(int fd, __u32 offset_low, __u32 offset_high,
- __u32 len_low, __u32 len_high, int advice)
-{
- return sys_fadvise64_64(fd,
- (((u64)offset_high)<<32) | offset_low,
- (((u64)len_high)<<32) | len_low,
- advice);
-}
-
-long sys32_vm86_warning(void)
-{
- struct task_struct *me = current;
- static char lastcomm[sizeof(me->comm)];
-
- if (strncmp(lastcomm, me->comm, sizeof(lastcomm))) {
- compat_printk(KERN_INFO
- "%s: vm86 mode not supported on 64 bit kernel\n",
- me->comm);
- strncpy(lastcomm, me->comm, sizeof(lastcomm));
- }
- return -ENOSYS;
-}
-
-long sys32_lookup_dcookie(u32 addr_low, u32 addr_high,
- char __user *buf, size_t len)
-{
- return sys_lookup_dcookie(((u64)addr_high << 32) | addr_low, buf, len);
-}
-
-asmlinkage ssize_t sys32_readahead(int fd, unsigned off_lo, unsigned off_hi,
- size_t count)
-{
- return sys_readahead(fd, ((u64)off_hi << 32) | off_lo, count);
-}
-
-asmlinkage long sys32_sync_file_range(int fd, unsigned off_low, unsigned off_hi,
- unsigned n_low, unsigned n_hi, int flags)
-{
- return sys_sync_file_range(fd,
- ((u64)off_hi << 32) | off_low,
- ((u64)n_hi << 32) | n_low, flags);
-}
-
-asmlinkage long sys32_fadvise64(int fd, unsigned offset_lo, unsigned offset_hi,
- size_t len, int advice)
-{
- return sys_fadvise64_64(fd, ((u64)offset_hi << 32) | offset_lo,
- len, advice);
-}
-
-asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_lo,
- unsigned offset_hi, unsigned len_lo,
- unsigned len_hi)
-{
- return sys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo,
- ((u64)len_hi << 32) | len_lo);
-}
-
-asmlinkage long sys32_fanotify_mark(int fanotify_fd, unsigned int flags,
- u32 mask_lo, u32 mask_hi,
- int fd, const char __user *pathname)
-{
- return sys_fanotify_mark(fanotify_fd, flags,
- ((u64)mask_hi << 32) | mask_lo,
- fd, pathname);
-}
diff --git a/arch/x86/include/asm/GEN-for-each-reg.h b/arch/x86/include/asm/GEN-for-each-reg.h
new file mode 100644
index 000000000000..07949102a08d
--- /dev/null
+++ b/arch/x86/include/asm/GEN-for-each-reg.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * These are in machine order; things rely on that.
+ */
+#ifdef CONFIG_64BIT
+GEN(rax)
+GEN(rcx)
+GEN(rdx)
+GEN(rbx)
+GEN(rsp)
+GEN(rbp)
+GEN(rsi)
+GEN(rdi)
+GEN(r8)
+GEN(r9)
+GEN(r10)
+GEN(r11)
+GEN(r12)
+GEN(r13)
+GEN(r14)
+GEN(r15)
+#else
+GEN(eax)
+GEN(ecx)
+GEN(edx)
+GEN(ebx)
+GEN(esp)
+GEN(ebp)
+GEN(esi)
+GEN(edi)
+#endif
diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
index 6fa90a845e4c..1e51650b79d7 100644
--- a/arch/x86/include/asm/Kbuild
+++ b/arch/x86/include/asm/Kbuild
@@ -1,25 +1,13 @@
-include include/asm-generic/Kbuild.asm
+# SPDX-License-Identifier: GPL-2.0
-header-y += boot.h
-header-y += bootparam.h
-header-y += debugreg.h
-header-y += e820.h
-header-y += hw_breakpoint.h
-header-y += hyperv.h
-header-y += ist.h
-header-y += ldt.h
-header-y += mce.h
-header-y += msr-index.h
-header-y += msr.h
-header-y += mtrr.h
-header-y += posix_types_32.h
-header-y += posix_types_64.h
-header-y += prctl.h
-header-y += processor-flags.h
-header-y += ptrace-abi.h
-header-y += sigcontext32.h
-header-y += ucontext.h
-header-y += unistd_32.h
-header-y += unistd_64.h
-header-y += vm86.h
-header-y += vsyscall.h
+
+generated-y += syscalls_32.h
+generated-y += syscalls_64.h
+generated-y += syscalls_x32.h
+generated-y += unistd_32_ia32.h
+generated-y += unistd_64_x32.h
+generated-y += xen-hypercalls.h
+
+generic-y += early_ioremap.h
+generic-y += export.h
+generic-y += mcs_spinlock.h
diff --git a/arch/x86/include/asm/a.out-core.h b/arch/x86/include/asm/a.out-core.h
deleted file mode 100644
index 7a15588e45d4..000000000000
--- a/arch/x86/include/asm/a.out-core.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/* a.out coredump register dumper
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#ifndef _ASM_X86_A_OUT_CORE_H
-#define _ASM_X86_A_OUT_CORE_H
-
-#ifdef __KERNEL__
-#ifdef CONFIG_X86_32
-
-#include <linux/user.h>
-#include <linux/elfcore.h>
-#include <asm/debugreg.h>
-
-/*
- * fill in the user structure for an a.out core dump
- */
-static inline void aout_dump_thread(struct pt_regs *regs, struct user *dump)
-{
-/* changed the size calculations - should hopefully work better. lbt */
- dump->magic = CMAGIC;
- dump->start_code = 0;
- dump->start_stack = regs->sp & ~(PAGE_SIZE - 1);
- dump->u_tsize = ((unsigned long)current->mm->end_code) >> PAGE_SHIFT;
- dump->u_dsize = ((unsigned long)(current->mm->brk + (PAGE_SIZE - 1)))
- >> PAGE_SHIFT;
- dump->u_dsize -= dump->u_tsize;
- dump->u_ssize = 0;
- aout_dump_debugregs(dump);
-
- if (dump->start_stack < TASK_SIZE)
- dump->u_ssize = ((unsigned long)(TASK_SIZE - dump->start_stack))
- >> PAGE_SHIFT;
-
- dump->regs.bx = regs->bx;
- dump->regs.cx = regs->cx;
- dump->regs.dx = regs->dx;
- dump->regs.si = regs->si;
- dump->regs.di = regs->di;
- dump->regs.bp = regs->bp;
- dump->regs.ax = regs->ax;
- dump->regs.ds = (u16)regs->ds;
- dump->regs.es = (u16)regs->es;
- dump->regs.fs = (u16)regs->fs;
- dump->regs.gs = get_user_gs(regs);
- dump->regs.orig_ax = regs->orig_ax;
- dump->regs.ip = regs->ip;
- dump->regs.cs = (u16)regs->cs;
- dump->regs.flags = regs->flags;
- dump->regs.sp = regs->sp;
- dump->regs.ss = (u16)regs->ss;
-
- dump->u_fpvalid = dump_fpu(regs, &dump->i387);
-}
-
-#endif /* CONFIG_X86_32 */
-#endif /* __KERNEL__ */
-#endif /* _ASM_X86_A_OUT_CORE_H */
diff --git a/arch/x86/include/asm/acenv.h b/arch/x86/include/asm/acenv.h
new file mode 100644
index 000000000000..d937c55e717e
--- /dev/null
+++ b/arch/x86/include/asm/acenv.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * X86 specific ACPICA environments and implementation
+ *
+ * Copyright (C) 2014, Intel Corporation
+ * Author: Lv Zheng <lv.zheng@intel.com>
+ */
+
+#ifndef _ASM_X86_ACENV_H
+#define _ASM_X86_ACENV_H
+
+#include <asm/special_insns.h>
+
+/* Asm macros */
+
+/*
+ * ACPI_FLUSH_CPU_CACHE() flushes caches on entering sleep states.
+ * It is required to prevent data loss.
+ *
+ * While running inside virtual machine, the kernel can bypass cache flushing.
+ * Changing sleep state in a virtual machine doesn't affect the host system
+ * sleep state and cannot lead to data loss.
+ */
+#define ACPI_FLUSH_CPU_CACHE() \
+do { \
+ if (!cpu_feature_enabled(X86_FEATURE_HYPERVISOR)) \
+ wbinvd(); \
+} while (0)
+
+int __acpi_acquire_global_lock(unsigned int *lock);
+int __acpi_release_global_lock(unsigned int *lock);
+
+#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
+ ((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
+
+#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
+ ((Acq) = __acpi_release_global_lock(&facs->global_lock))
+
+/*
+ * Math helper asm macros
+ */
+#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
+ asm("divl %2;" \
+ : "=a"(q32), "=d"(r32) \
+ : "r"(d32), \
+ "0"(n_lo), "1"(n_hi))
+
+#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
+ asm("shrl $1,%2 ;" \
+ "rcrl $1,%3;" \
+ : "=r"(n_hi), "=r"(n_lo) \
+ : "0"(n_hi), "1"(n_lo))
+
+#endif /* _ASM_X86_ACENV_H */
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 12e0e7dd869c..8eb74cf386db 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -1,84 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_X86_ACPI_H
#define _ASM_X86_ACPI_H
/*
* Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
* Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#include <acpi/pdc_intel.h>
#include <asm/numa.h>
+#include <asm/fixmap.h>
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/mpspec.h>
-#include <asm/trampoline.h>
+#include <asm/x86_init.h>
+#include <asm/cpufeature.h>
-#define COMPILER_DEPENDENT_INT64 long long
-#define COMPILER_DEPENDENT_UINT64 unsigned long long
-
-/*
- * Calling conventions:
- *
- * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
- * ACPI_EXTERNAL_XFACE - External ACPI interfaces
- * ACPI_INTERNAL_XFACE - Internal ACPI interfaces
- * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
- */
-#define ACPI_SYSTEM_XFACE
-#define ACPI_EXTERNAL_XFACE
-#define ACPI_INTERNAL_XFACE
-#define ACPI_INTERNAL_VAR_XFACE
-
-/* Asm macros */
-
-#define ACPI_ASM_MACROS
-#define BREAKPOINT3
-#define ACPI_DISABLE_IRQS() local_irq_disable()
-#define ACPI_ENABLE_IRQS() local_irq_enable()
-#define ACPI_FLUSH_CPU_CACHE() wbinvd()
-
-int __acpi_acquire_global_lock(unsigned int *lock);
-int __acpi_release_global_lock(unsigned int *lock);
-
-#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
- ((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
-
-#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
- ((Acq) = __acpi_release_global_lock(&facs->global_lock))
-
-/*
- * Math helper asm macros
- */
-#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
- asm("divl %2;" \
- : "=a"(q32), "=d"(r32) \
- : "r"(d32), \
- "0"(n_lo), "1"(n_hi))
-
-
-#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
- asm("shrl $1,%2 ;" \
- "rcrl $1,%3;" \
- : "=r"(n_hi), "=r"(n_lo) \
- : "0"(n_hi), "1"(n_lo))
+#ifdef CONFIG_ACPI_APEI
+# include <asm/pgtable_types.h>
+#endif
#ifdef CONFIG_ACPI
extern int acpi_lapic;
@@ -90,13 +30,17 @@ extern int acpi_pci_disabled;
extern int acpi_skip_timer_override;
extern int acpi_use_timer_override;
extern int acpi_fix_pin2_polarity;
+extern int acpi_disable_cmcff;
extern u8 acpi_sci_flags;
-extern int acpi_sci_override_gsi;
+extern u32 acpi_sci_override_gsi;
void acpi_pic_sci_set_trigger(unsigned int, u16);
+struct device;
+
extern int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
int trigger, int polarity);
+extern void (*__acpi_unregister_gsi)(u32 gsi);
static inline void disable_acpi(void)
{
@@ -115,13 +59,17 @@ static inline void acpi_disable_pci(void)
}
/* Low-level suspend routine. */
-extern int acpi_suspend_lowlevel(void);
+extern int (*acpi_suspend_lowlevel)(void);
-extern const unsigned char acpi_wakeup_code[];
-#define acpi_wakeup_address (__pa(TRAMPOLINE_SYM(acpi_wakeup_code)))
+/* Physical address to resume after wakeup */
+unsigned long acpi_get_wakeup_address(void);
+
+static inline bool acpi_skip_set_wakeup_address(void)
+{
+ return cpu_feature_enabled(X86_FEATURE_XENPV);
+}
-/* early initialization routine */
-extern void acpi_reserve_wakeup_memory(void);
+#define acpi_skip_set_wakeup_address acpi_skip_set_wakeup_address
/*
* Check if the CPU can handle C2 and deeper
@@ -137,9 +85,9 @@ static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate)
if (boot_cpu_data.x86 == 0x0F &&
boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
boot_cpu_data.x86_model <= 0x05 &&
- boot_cpu_data.x86_mask < 0x0A)
+ boot_cpu_data.x86_stepping < 0x0A)
return 1;
- else if (c1e_detected)
+ else if (boot_cpu_has(X86_BUG_AMD_APIC_C1E))
return 1;
else
return max_cstate;
@@ -171,25 +119,85 @@ static inline void arch_acpi_set_pdc_bits(u32 *buf)
buf[2] &= ~(ACPI_PDC_C_C2C3_FFH);
}
+static inline bool acpi_has_cpu_in_madt(void)
+{
+ return !!acpi_lapic;
+}
+
+#define ACPI_HAVE_ARCH_SET_ROOT_POINTER
+static inline void acpi_arch_set_root_pointer(u64 addr)
+{
+ x86_init.acpi.set_root_pointer(addr);
+}
+
+#define ACPI_HAVE_ARCH_GET_ROOT_POINTER
+static inline u64 acpi_arch_get_root_pointer(void)
+{
+ return x86_init.acpi.get_root_pointer();
+}
+
+void acpi_generic_reduced_hw_init(void);
+
+void x86_default_set_root_pointer(u64 addr);
+u64 x86_default_get_root_pointer(void);
+
#else /* !CONFIG_ACPI */
#define acpi_lapic 0
#define acpi_ioapic 0
+#define acpi_disable_cmcff 0
static inline void acpi_noirq_set(void) { }
static inline void acpi_disable_pci(void) { }
static inline void disable_acpi(void) { }
+static inline void acpi_generic_reduced_hw_init(void) { }
+
+static inline void x86_default_set_root_pointer(u64 addr) { }
+
+static inline u64 x86_default_get_root_pointer(void)
+{
+ return 0;
+}
+
#endif /* !CONFIG_ACPI */
#define ARCH_HAS_POWER_INIT 1
-struct bootnode;
-
#ifdef CONFIG_ACPI_NUMA
-extern int acpi_numa;
extern int x86_acpi_numa_init(void);
#endif /* CONFIG_ACPI_NUMA */
-#define acpi_unlazy_tlb(x) leave_mm(x)
+struct cper_ia_proc_ctx;
+
+#ifdef CONFIG_ACPI_APEI
+static inline pgprot_t arch_apei_get_mem_attribute(phys_addr_t addr)
+{
+ /*
+ * We currently have no way to look up the EFI memory map
+ * attributes for a region in a consistent way, because the
+ * memmap is discarded after efi_free_boot_services(). So if
+ * you call efi_mem_attributes() during boot and at runtime,
+ * you could theoretically see different attributes.
+ *
+ * We are yet to see any x86 platforms that require anything
+ * other than PAGE_KERNEL (some ARM64 platforms require the
+ * equivalent of PAGE_KERNEL_NOCACHE). Additionally, if SME
+ * is active, the ACPI information will not be encrypted,
+ * so return PAGE_KERNEL_NOENC until we know differently.
+ */
+ return PAGE_KERNEL_NOENC;
+}
+
+int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info,
+ u64 lapic_id);
+#else
+static inline int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info,
+ u64 lapic_id)
+{
+ return -EINVAL;
+}
+#endif
+
+#define ACPI_TABLE_UPGRADE_MAX_PHYS (max_low_pfn_mapped << PAGE_SHIFT)
#endif /* _ASM_X86_ACPI_H */
diff --git a/arch/x86/include/asm/acrn.h b/arch/x86/include/asm/acrn.h
new file mode 100644
index 000000000000..1dd14381bcb6
--- /dev/null
+++ b/arch/x86/include/asm/acrn.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_ACRN_H
+#define _ASM_X86_ACRN_H
+
+/*
+ * This CPUID returns feature bitmaps in EAX.
+ * Guest VM uses this to detect the appropriate feature bit.
+ */
+#define ACRN_CPUID_FEATURES 0x40000001
+/* Bit 0 indicates whether guest VM is privileged */
+#define ACRN_FEATURE_PRIVILEGED_VM BIT(0)
+
+/*
+ * Timing Information.
+ * This leaf returns the current TSC frequency in kHz.
+ *
+ * EAX: (Virtual) TSC frequency in kHz.
+ * EBX, ECX, EDX: RESERVED (reserved fields are set to zero).
+ */
+#define ACRN_CPUID_TIMING_INFO 0x40000010
+
+void acrn_setup_intr_handler(void (*handler)(void));
+void acrn_remove_intr_handler(void);
+
+static inline u32 acrn_cpuid_base(void)
+{
+ if (boot_cpu_has(X86_FEATURE_HYPERVISOR))
+ return hypervisor_cpuid_base("ACRNACRNACRN", 0);
+
+ return 0;
+}
+
+static inline unsigned long acrn_get_tsc_khz(void)
+{
+ return cpuid_eax(ACRN_CPUID_TIMING_INFO);
+}
+
+/*
+ * Hypercalls for ACRN
+ *
+ * - VMCALL instruction is used to implement ACRN hypercalls.
+ * - ACRN hypercall ABI:
+ * - Hypercall number is passed in R8 register.
+ * - Up to 2 arguments are passed in RDI, RSI.
+ * - Return value will be placed in RAX.
+ *
+ * Because GCC doesn't support R8 register as direct register constraints, use
+ * supported constraint as input with a explicit MOV to R8 in beginning of asm.
+ */
+static inline long acrn_hypercall0(unsigned long hcall_id)
+{
+ long result;
+
+ asm volatile("movl %1, %%r8d\n\t"
+ "vmcall\n\t"
+ : "=a" (result)
+ : "g" (hcall_id)
+ : "r8", "memory");
+
+ return result;
+}
+
+static inline long acrn_hypercall1(unsigned long hcall_id,
+ unsigned long param1)
+{
+ long result;
+
+ asm volatile("movl %1, %%r8d\n\t"
+ "vmcall\n\t"
+ : "=a" (result)
+ : "g" (hcall_id), "D" (param1)
+ : "r8", "memory");
+
+ return result;
+}
+
+static inline long acrn_hypercall2(unsigned long hcall_id,
+ unsigned long param1,
+ unsigned long param2)
+{
+ long result;
+
+ asm volatile("movl %1, %%r8d\n\t"
+ "vmcall\n\t"
+ : "=a" (result)
+ : "g" (hcall_id), "D" (param1), "S" (param2)
+ : "r8", "memory");
+
+ return result;
+}
+
+#endif /* _ASM_X86_ACRN_H */
diff --git a/arch/x86/include/asm/aes.h b/arch/x86/include/asm/aes.h
deleted file mode 100644
index 80545a1cbe39..000000000000
--- a/arch/x86/include/asm/aes.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef ASM_X86_AES_H
-#define ASM_X86_AES_H
-
-#include <linux/crypto.h>
-#include <crypto/aes.h>
-
-void crypto_aes_encrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst,
- const u8 *src);
-void crypto_aes_decrypt_x86(struct crypto_aes_ctx *ctx, u8 *dst,
- const u8 *src);
-#endif
diff --git a/arch/x86/include/asm/agp.h b/arch/x86/include/asm/agp.h
index eec2a70d4376..c8c111d8fbd7 100644
--- a/arch/x86/include/asm/agp.h
+++ b/arch/x86/include/asm/agp.h
@@ -1,14 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_AGP_H
#define _ASM_X86_AGP_H
-#include <asm/pgtable.h>
+#include <linux/pgtable.h>
#include <asm/cacheflush.h>
/*
* Functions to keep the agpgart mappings coherent with the MMU. The
* GART gives the CPU a physical alias of pages in memory. The alias
* region is mapped uncacheable. Make sure there are no conflicting
- * mappings with different cachability attributes for the same
+ * mappings with different cacheability attributes for the same
* page. This avoids data corruption on some CPUs.
*/
@@ -22,10 +23,4 @@
*/
#define flush_agp_cache() wbinvd()
-/* GATT allocation. Returns/accepts GATT kernel virtual address. */
-#define alloc_gatt_pages(order) \
- ((char *)__get_free_pages(GFP_KERNEL, (order)))
-#define free_gatt_pages(table, order) \
- free_pages((unsigned long)(table), (order))
-
#endif /* _ASM_X86_AGP_H */
diff --git a/arch/x86/include/asm/alternative-asm.h b/arch/x86/include/asm/alternative-asm.h
deleted file mode 100644
index a63a68be1cce..000000000000
--- a/arch/x86/include/asm/alternative-asm.h
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifdef __ASSEMBLY__
-
-#include <asm/asm.h>
-
-#ifdef CONFIG_SMP
- .macro LOCK_PREFIX
-1: lock
- .section .smp_locks,"a"
- .balign 4
- .long 1b - .
- .previous
- .endm
-#else
- .macro LOCK_PREFIX
- .endm
-#endif
-
-#endif /* __ASSEMBLY__ */
diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h
index 13009d1af99a..d7da28fada87 100644
--- a/arch/x86/include/asm/alternative.h
+++ b/arch/x86/include/asm/alternative.h
@@ -1,12 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_ALTERNATIVE_H
#define _ASM_X86_ALTERNATIVE_H
#include <linux/types.h>
-#include <linux/stddef.h>
#include <linux/stringify.h>
-#include <linux/jump_label.h>
#include <asm/asm.h>
+#define ALT_FLAGS_SHIFT 16
+
+#define ALT_FLAG_NOT (1 << 0)
+#define ALT_NOT(feature) ((ALT_FLAG_NOT << ALT_FLAGS_SHIFT) | (feature))
+
+#ifndef __ASSEMBLY__
+
+#include <linux/stddef.h>
+
/*
* Alternative inline assembly for SMP.
*
@@ -30,10 +38,10 @@
#ifdef CONFIG_SMP
#define LOCK_PREFIX_HERE \
- ".section .smp_locks,\"a\"\n" \
- ".balign 4\n" \
- ".long 671f - .\n" /* offset */ \
- ".previous\n" \
+ ".pushsection .smp_locks,\"a\"\n" \
+ ".balign 4\n" \
+ ".long 671f - .\n" /* offset */ \
+ ".popsection\n" \
"671:"
#define LOCK_PREFIX LOCK_PREFIX_HERE "\n\tlock; "
@@ -43,28 +51,96 @@
#define LOCK_PREFIX ""
#endif
+/*
+ * objtool annotation to ignore the alternatives and only consider the original
+ * instruction(s).
+ */
+#define ANNOTATE_IGNORE_ALTERNATIVE \
+ "999:\n\t" \
+ ".pushsection .discard.ignore_alts\n\t" \
+ ".long 999b - .\n\t" \
+ ".popsection\n\t"
+
+/*
+ * The patching flags are part of the upper bits of the @ft_flags parameter when
+ * specifying them. The split is currently like this:
+ *
+ * [31... flags ...16][15... CPUID feature bit ...0]
+ *
+ * but since this is all hidden in the macros argument being split, those fields can be
+ * extended in the future to fit in a u64 or however the need arises.
+ */
struct alt_instr {
- u8 *instr; /* original instruction */
- u8 *replacement;
- u16 cpuid; /* cpuid bit set for replacement */
+ s32 instr_offset; /* original instruction */
+ s32 repl_offset; /* offset to replacement instruction */
+
+ union {
+ struct {
+ u32 cpuid: 16; /* CPUID bit set for replacement */
+ u32 flags: 16; /* patching control flags */
+ };
+ u32 ft_flags;
+ };
+
u8 instrlen; /* length of original instruction */
- u8 replacementlen; /* length of new instruction, <= instrlen */
-#ifdef CONFIG_X86_64
- u32 pad2;
-#endif
-};
+ u8 replacementlen; /* length of new instruction */
+} __packed;
+
+/*
+ * Debug flag that can be tested to see whether alternative
+ * instructions were patched in already:
+ */
+extern int alternatives_patched;
extern void alternative_instructions(void);
extern void apply_alternatives(struct alt_instr *start, struct alt_instr *end);
+extern void apply_retpolines(s32 *start, s32 *end);
+extern void apply_returns(s32 *start, s32 *end);
+extern void apply_ibt_endbr(s32 *start, s32 *end);
+extern void apply_fineibt(s32 *start_retpoline, s32 *end_retpoine,
+ s32 *start_cfi, s32 *end_cfi);
struct module;
+struct paravirt_patch_site;
+
+struct callthunk_sites {
+ s32 *call_start, *call_end;
+ struct paravirt_patch_site *pv_start, *pv_end;
+};
+
+#ifdef CONFIG_CALL_THUNKS
+extern void callthunks_patch_builtin_calls(void);
+extern void callthunks_patch_module_calls(struct callthunk_sites *sites,
+ struct module *mod);
+extern void *callthunks_translate_call_dest(void *dest);
+extern bool is_callthunk(void *addr);
+extern int x86_call_depth_emit_accounting(u8 **pprog, void *func);
+#else
+static __always_inline void callthunks_patch_builtin_calls(void) {}
+static __always_inline void
+callthunks_patch_module_calls(struct callthunk_sites *sites,
+ struct module *mod) {}
+static __always_inline void *callthunks_translate_call_dest(void *dest)
+{
+ return dest;
+}
+static __always_inline bool is_callthunk(void *addr)
+{
+ return false;
+}
+static __always_inline int x86_call_depth_emit_accounting(u8 **pprog,
+ void *func)
+{
+ return 0;
+}
+#endif
#ifdef CONFIG_SMP
extern void alternatives_smp_module_add(struct module *mod, char *name,
void *locks, void *locks_end,
void *text, void *text_end);
extern void alternatives_smp_module_del(struct module *mod);
-extern void alternatives_smp_switch(int smp);
+extern void alternatives_enable_smp(void);
extern int alternatives_text_reserved(void *start, void *end);
extern bool skip_smp_alternatives;
#else
@@ -72,37 +148,109 @@ static inline void alternatives_smp_module_add(struct module *mod, char *name,
void *locks, void *locks_end,
void *text, void *text_end) {}
static inline void alternatives_smp_module_del(struct module *mod) {}
-static inline void alternatives_smp_switch(int smp) {}
+static inline void alternatives_enable_smp(void) {}
static inline int alternatives_text_reserved(void *start, void *end)
{
return 0;
}
#endif /* CONFIG_SMP */
+#define b_replacement(num) "664"#num
+#define e_replacement(num) "665"#num
+
+#define alt_end_marker "663"
+#define alt_slen "662b-661b"
+#define alt_total_slen alt_end_marker"b-661b"
+#define alt_rlen(num) e_replacement(num)"f-"b_replacement(num)"f"
+
+#define OLDINSTR(oldinstr, num) \
+ "# ALT: oldnstr\n" \
+ "661:\n\t" oldinstr "\n662:\n" \
+ "# ALT: padding\n" \
+ ".skip -(((" alt_rlen(num) ")-(" alt_slen ")) > 0) * " \
+ "((" alt_rlen(num) ")-(" alt_slen ")),0x90\n" \
+ alt_end_marker ":\n"
+
+/*
+ * gas compatible max based on the idea from:
+ * http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
+ *
+ * The additional "-" is needed because gas uses a "true" value of -1.
+ */
+#define alt_max_short(a, b) "((" a ") ^ (((" a ") ^ (" b ")) & -(-((" a ") < (" b ")))))"
+
+/*
+ * Pad the second replacement alternative with additional NOPs if it is
+ * additionally longer than the first replacement alternative.
+ */
+#define OLDINSTR_2(oldinstr, num1, num2) \
+ "# ALT: oldinstr2\n" \
+ "661:\n\t" oldinstr "\n662:\n" \
+ "# ALT: padding2\n" \
+ ".skip -((" alt_max_short(alt_rlen(num1), alt_rlen(num2)) " - (" alt_slen ")) > 0) * " \
+ "(" alt_max_short(alt_rlen(num1), alt_rlen(num2)) " - (" alt_slen ")), 0x90\n" \
+ alt_end_marker ":\n"
+
+#define OLDINSTR_3(oldinsn, n1, n2, n3) \
+ "# ALT: oldinstr3\n" \
+ "661:\n\t" oldinsn "\n662:\n" \
+ "# ALT: padding3\n" \
+ ".skip -((" alt_max_short(alt_max_short(alt_rlen(n1), alt_rlen(n2)), alt_rlen(n3)) \
+ " - (" alt_slen ")) > 0) * " \
+ "(" alt_max_short(alt_max_short(alt_rlen(n1), alt_rlen(n2)), alt_rlen(n3)) \
+ " - (" alt_slen ")), 0x90\n" \
+ alt_end_marker ":\n"
+
+#define ALTINSTR_ENTRY(ft_flags, num) \
+ " .long 661b - .\n" /* label */ \
+ " .long " b_replacement(num)"f - .\n" /* new instruction */ \
+ " .4byte " __stringify(ft_flags) "\n" /* feature + flags */ \
+ " .byte " alt_total_slen "\n" /* source len */ \
+ " .byte " alt_rlen(num) "\n" /* replacement len */
+
+#define ALTINSTR_REPLACEMENT(newinstr, num) /* replacement */ \
+ "# ALT: replacement " #num "\n" \
+ b_replacement(num)":\n\t" newinstr "\n" e_replacement(num) ":\n"
+
/* alternative assembly primitive: */
-#define ALTERNATIVE(oldinstr, newinstr, feature) \
- \
- "661:\n\t" oldinstr "\n662:\n" \
- ".section .altinstructions,\"a\"\n" \
- _ASM_ALIGN "\n" \
- _ASM_PTR "661b\n" /* label */ \
- _ASM_PTR "663f\n" /* new instruction */ \
- " .word " __stringify(feature) "\n" /* feature bit */ \
- " .byte 662b-661b\n" /* sourcelen */ \
- " .byte 664f-663f\n" /* replacementlen */ \
- ".previous\n" \
- ".section .discard,\"aw\",@progbits\n" \
- " .byte 0xff + (664f-663f) - (662b-661b)\n" /* rlen <= slen */ \
- ".previous\n" \
- ".section .altinstr_replacement, \"ax\"\n" \
- "663:\n\t" newinstr "\n664:\n" /* replacement */ \
- ".previous"
-
-/*
- * This must be included *after* the definition of ALTERNATIVE due to
- * <asm/arch_hweight.h>
- */
-#include <asm/cpufeature.h>
+#define ALTERNATIVE(oldinstr, newinstr, ft_flags) \
+ OLDINSTR(oldinstr, 1) \
+ ".pushsection .altinstructions,\"a\"\n" \
+ ALTINSTR_ENTRY(ft_flags, 1) \
+ ".popsection\n" \
+ ".pushsection .altinstr_replacement, \"ax\"\n" \
+ ALTINSTR_REPLACEMENT(newinstr, 1) \
+ ".popsection\n"
+
+#define ALTERNATIVE_2(oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2) \
+ OLDINSTR_2(oldinstr, 1, 2) \
+ ".pushsection .altinstructions,\"a\"\n" \
+ ALTINSTR_ENTRY(ft_flags1, 1) \
+ ALTINSTR_ENTRY(ft_flags2, 2) \
+ ".popsection\n" \
+ ".pushsection .altinstr_replacement, \"ax\"\n" \
+ ALTINSTR_REPLACEMENT(newinstr1, 1) \
+ ALTINSTR_REPLACEMENT(newinstr2, 2) \
+ ".popsection\n"
+
+/* If @feature is set, patch in @newinstr_yes, otherwise @newinstr_no. */
+#define ALTERNATIVE_TERNARY(oldinstr, ft_flags, newinstr_yes, newinstr_no) \
+ ALTERNATIVE_2(oldinstr, newinstr_no, X86_FEATURE_ALWAYS, \
+ newinstr_yes, ft_flags)
+
+#define ALTERNATIVE_3(oldinsn, newinsn1, ft_flags1, newinsn2, ft_flags2, \
+ newinsn3, ft_flags3) \
+ OLDINSTR_3(oldinsn, 1, 2, 3) \
+ ".pushsection .altinstructions,\"a\"\n" \
+ ALTINSTR_ENTRY(ft_flags1, 1) \
+ ALTINSTR_ENTRY(ft_flags2, 2) \
+ ALTINSTR_ENTRY(ft_flags3, 3) \
+ ".popsection\n" \
+ ".pushsection .altinstr_replacement, \"ax\"\n" \
+ ALTINSTR_REPLACEMENT(newinsn1, 1) \
+ ALTINSTR_REPLACEMENT(newinsn2, 2) \
+ ALTINSTR_REPLACEMENT(newinsn3, 3) \
+ ".popsection\n"
/*
* Alternative instructions for different CPU types or capabilities.
@@ -116,87 +264,213 @@ static inline int alternatives_text_reserved(void *start, void *end)
* For non barrier like inlines please define new variants
* without volatile and memory clobber.
*/
-#define alternative(oldinstr, newinstr, feature) \
- asm volatile (ALTERNATIVE(oldinstr, newinstr, feature) : : : "memory")
+#define alternative(oldinstr, newinstr, ft_flags) \
+ asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, ft_flags) : : : "memory")
+
+#define alternative_2(oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2) \
+ asm_inline volatile(ALTERNATIVE_2(oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2) ::: "memory")
+
+#define alternative_ternary(oldinstr, ft_flags, newinstr_yes, newinstr_no) \
+ asm_inline volatile(ALTERNATIVE_TERNARY(oldinstr, ft_flags, newinstr_yes, newinstr_no) ::: "memory")
/*
* Alternative inline assembly with input.
*
- * Pecularities:
+ * Peculiarities:
* No memory clobber here.
* Argument numbers start with 1.
- * Best is to use constraints that are fixed size (like (%1) ... "r")
- * If you use variable sized constraints like "m" or "g" in the
- * replacement make sure to pad to the worst case length.
* Leaving an unused argument 0 to keep API compatibility.
*/
-#define alternative_input(oldinstr, newinstr, feature, input...) \
- asm volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
+#define alternative_input(oldinstr, newinstr, ft_flags, input...) \
+ asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, ft_flags) \
+ : : "i" (0), ## input)
+
+/*
+ * This is similar to alternative_input. But it has two features and
+ * respective instructions.
+ *
+ * If CPU has feature2, newinstr2 is used.
+ * Otherwise, if CPU has feature1, newinstr1 is used.
+ * Otherwise, oldinstr is used.
+ */
+#define alternative_input_2(oldinstr, newinstr1, ft_flags1, newinstr2, \
+ ft_flags2, input...) \
+ asm_inline volatile(ALTERNATIVE_2(oldinstr, newinstr1, ft_flags1, \
+ newinstr2, ft_flags2) \
: : "i" (0), ## input)
/* Like alternative_input, but with a single output argument */
-#define alternative_io(oldinstr, newinstr, feature, output, input...) \
- asm volatile (ALTERNATIVE(oldinstr, newinstr, feature) \
+#define alternative_io(oldinstr, newinstr, ft_flags, output, input...) \
+ asm_inline volatile (ALTERNATIVE(oldinstr, newinstr, ft_flags) \
: output : "i" (0), ## input)
/* Like alternative_io, but for replacing a direct call with another one. */
-#define alternative_call(oldfunc, newfunc, feature, output, input...) \
- asm volatile (ALTERNATIVE("call %P[old]", "call %P[new]", feature) \
+#define alternative_call(oldfunc, newfunc, ft_flags, output, input...) \
+ asm_inline volatile (ALTERNATIVE("call %P[old]", "call %P[new]", ft_flags) \
: output : [old] "i" (oldfunc), [new] "i" (newfunc), ## input)
/*
+ * Like alternative_call, but there are two features and respective functions.
+ * If CPU has feature2, function2 is used.
+ * Otherwise, if CPU has feature1, function1 is used.
+ * Otherwise, old function is used.
+ */
+#define alternative_call_2(oldfunc, newfunc1, ft_flags1, newfunc2, ft_flags2, \
+ output, input...) \
+ asm_inline volatile (ALTERNATIVE_2("call %P[old]", "call %P[new1]", ft_flags1,\
+ "call %P[new2]", ft_flags2) \
+ : output, ASM_CALL_CONSTRAINT \
+ : [old] "i" (oldfunc), [new1] "i" (newfunc1), \
+ [new2] "i" (newfunc2), ## input)
+
+/*
* use this macro(s) if you need more than one output parameter
* in alternative_io
*/
#define ASM_OUTPUT2(a...) a
-struct paravirt_patch_site;
-#ifdef CONFIG_PARAVIRT
-void apply_paravirt(struct paravirt_patch_site *start,
- struct paravirt_patch_site *end);
+/*
+ * use this macro if you need clobbers but no inputs in
+ * alternative_{input,io,call}()
+ */
+#define ASM_NO_INPUT_CLOBBER(clbr...) "i" (0) : clbr
+
+#else /* __ASSEMBLY__ */
+
+#ifdef CONFIG_SMP
+ .macro LOCK_PREFIX
+672: lock
+ .pushsection .smp_locks,"a"
+ .balign 4
+ .long 672b - .
+ .popsection
+ .endm
#else
-static inline void apply_paravirt(struct paravirt_patch_site *start,
- struct paravirt_patch_site *end)
-{}
-#define __parainstructions NULL
-#define __parainstructions_end NULL
+ .macro LOCK_PREFIX
+ .endm
#endif
-extern void *text_poke_early(void *addr, const void *opcode, size_t len);
+/*
+ * objtool annotation to ignore the alternatives and only consider the original
+ * instruction(s).
+ */
+.macro ANNOTATE_IGNORE_ALTERNATIVE
+ .Lannotate_\@:
+ .pushsection .discard.ignore_alts
+ .long .Lannotate_\@ - .
+ .popsection
+.endm
+
+/*
+ * Issue one struct alt_instr descriptor entry (need to put it into
+ * the section .altinstructions, see below). This entry contains
+ * enough information for the alternatives patching code to patch an
+ * instruction. See apply_alternatives().
+ */
+.macro altinstr_entry orig alt ft_flags orig_len alt_len
+ .long \orig - .
+ .long \alt - .
+ .4byte \ft_flags
+ .byte \orig_len
+ .byte \alt_len
+.endm
/*
- * Clear and restore the kernel write-protection flag on the local CPU.
- * Allows the kernel to edit read-only pages.
- * Side-effect: any interrupt handler running between save and restore will have
- * the ability to write to read-only pages.
+ * Define an alternative between two instructions. If @feature is
+ * present, early code in apply_alternatives() replaces @oldinstr with
+ * @newinstr. ".skip" directive takes care of proper instruction padding
+ * in case @newinstr is longer than @oldinstr.
+ */
+.macro ALTERNATIVE oldinstr, newinstr, ft_flags
+140:
+ \oldinstr
+141:
+ .skip -(((144f-143f)-(141b-140b)) > 0) * ((144f-143f)-(141b-140b)),0x90
+142:
+
+ .pushsection .altinstructions,"a"
+ altinstr_entry 140b,143f,\ft_flags,142b-140b,144f-143f
+ .popsection
+
+ .pushsection .altinstr_replacement,"ax"
+143:
+ \newinstr
+144:
+ .popsection
+.endm
+
+#define old_len 141b-140b
+#define new_len1 144f-143f
+#define new_len2 145f-144f
+#define new_len3 146f-145f
+
+/*
+ * gas compatible max based on the idea from:
+ * http://graphics.stanford.edu/~seander/bithacks.html#IntegerMinOrMax
*
- * Warning:
- * Code patching in the UP case is safe if NMIs and MCE handlers are stopped and
- * no thread can be preempted in the instructions being modified (no iret to an
- * invalid instruction possible) or if the instructions are changed from a
- * consistent state to another consistent state atomically.
- * More care must be taken when modifying code in the SMP case because of
- * Intel's errata. text_poke_smp() takes care that errata, but still
- * doesn't support NMI/MCE handler code modifying.
- * On the local CPU you need to be protected again NMI or MCE handlers seeing an
- * inconsistent instruction while you patch.
- */
-struct text_poke_param {
- void *addr;
- const void *opcode;
- size_t len;
-};
+ * The additional "-" is needed because gas uses a "true" value of -1.
+ */
+#define alt_max_2(a, b) ((a) ^ (((a) ^ (b)) & -(-((a) < (b)))))
+#define alt_max_3(a, b, c) (alt_max_2(alt_max_2(a, b), c))
-extern void *text_poke(void *addr, const void *opcode, size_t len);
-extern void *text_poke_smp(void *addr, const void *opcode, size_t len);
-extern void text_poke_smp_batch(struct text_poke_param *params, int n);
-#if defined(CONFIG_DYNAMIC_FTRACE) || defined(HAVE_JUMP_LABEL)
-#define IDEAL_NOP_SIZE_5 5
-extern unsigned char ideal_nop5[IDEAL_NOP_SIZE_5];
-extern void arch_init_ideal_nop5(void);
-#else
-static inline void arch_init_ideal_nop5(void) {}
-#endif
+/*
+ * Same as ALTERNATIVE macro above but for two alternatives. If CPU
+ * has @feature1, it replaces @oldinstr with @newinstr1. If CPU has
+ * @feature2, it replaces @oldinstr with @feature2.
+ */
+.macro ALTERNATIVE_2 oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2
+140:
+ \oldinstr
+141:
+ .skip -((alt_max_2(new_len1, new_len2) - (old_len)) > 0) * \
+ (alt_max_2(new_len1, new_len2) - (old_len)),0x90
+142:
+
+ .pushsection .altinstructions,"a"
+ altinstr_entry 140b,143f,\ft_flags1,142b-140b,144f-143f
+ altinstr_entry 140b,144f,\ft_flags2,142b-140b,145f-144f
+ .popsection
+
+ .pushsection .altinstr_replacement,"ax"
+143:
+ \newinstr1
+144:
+ \newinstr2
+145:
+ .popsection
+.endm
+
+.macro ALTERNATIVE_3 oldinstr, newinstr1, ft_flags1, newinstr2, ft_flags2, newinstr3, ft_flags3
+140:
+ \oldinstr
+141:
+ .skip -((alt_max_3(new_len1, new_len2, new_len3) - (old_len)) > 0) * \
+ (alt_max_3(new_len1, new_len2, new_len3) - (old_len)),0x90
+142:
+
+ .pushsection .altinstructions,"a"
+ altinstr_entry 140b,143f,\ft_flags1,142b-140b,144f-143f
+ altinstr_entry 140b,144f,\ft_flags2,142b-140b,145f-144f
+ altinstr_entry 140b,145f,\ft_flags3,142b-140b,146f-145f
+ .popsection
+
+ .pushsection .altinstr_replacement,"ax"
+143:
+ \newinstr1
+144:
+ \newinstr2
+145:
+ \newinstr3
+146:
+ .popsection
+.endm
+
+/* If @feature is set, patch in @newinstr_yes, otherwise @newinstr_no. */
+#define ALTERNATIVE_TERNARY(oldinstr, ft_flags, newinstr_yes, newinstr_no) \
+ ALTERNATIVE_2 oldinstr, newinstr_no, X86_FEATURE_ALWAYS, \
+ newinstr_yes, ft_flags
+
+#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_ALTERNATIVE_H */
diff --git a/arch/x86/include/asm/amd-ibs.h b/arch/x86/include/asm/amd-ibs.h
new file mode 100644
index 000000000000..cb2a5e113daa
--- /dev/null
+++ b/arch/x86/include/asm/amd-ibs.h
@@ -0,0 +1,152 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * From PPR Vol 1 for AMD Family 19h Model 01h B1
+ * 55898 Rev 0.35 - Feb 5, 2021
+ */
+
+#include <asm/msr-index.h>
+
+/* IBS_OP_DATA2 DataSrc */
+#define IBS_DATA_SRC_LOC_CACHE 2
+#define IBS_DATA_SRC_DRAM 3
+#define IBS_DATA_SRC_REM_CACHE 4
+#define IBS_DATA_SRC_IO 7
+
+/* IBS_OP_DATA2 DataSrc Extension */
+#define IBS_DATA_SRC_EXT_LOC_CACHE 1
+#define IBS_DATA_SRC_EXT_NEAR_CCX_CACHE 2
+#define IBS_DATA_SRC_EXT_DRAM 3
+#define IBS_DATA_SRC_EXT_FAR_CCX_CACHE 5
+#define IBS_DATA_SRC_EXT_PMEM 6
+#define IBS_DATA_SRC_EXT_IO 7
+#define IBS_DATA_SRC_EXT_EXT_MEM 8
+#define IBS_DATA_SRC_EXT_PEER_AGENT_MEM 12
+
+/*
+ * IBS Hardware MSRs
+ */
+
+/* MSR 0xc0011030: IBS Fetch Control */
+union ibs_fetch_ctl {
+ __u64 val;
+ struct {
+ __u64 fetch_maxcnt:16,/* 0-15: instruction fetch max. count */
+ fetch_cnt:16, /* 16-31: instruction fetch count */
+ fetch_lat:16, /* 32-47: instruction fetch latency */
+ fetch_en:1, /* 48: instruction fetch enable */
+ fetch_val:1, /* 49: instruction fetch valid */
+ fetch_comp:1, /* 50: instruction fetch complete */
+ ic_miss:1, /* 51: i-cache miss */
+ phy_addr_valid:1,/* 52: physical address valid */
+ l1tlb_pgsz:2, /* 53-54: i-cache L1TLB page size
+ * (needs IbsPhyAddrValid) */
+ l1tlb_miss:1, /* 55: i-cache fetch missed in L1TLB */
+ l2tlb_miss:1, /* 56: i-cache fetch missed in L2TLB */
+ rand_en:1, /* 57: random tagging enable */
+ fetch_l2_miss:1,/* 58: L2 miss for sampled fetch
+ * (needs IbsFetchComp) */
+ l3_miss_only:1, /* 59: Collect L3 miss samples only */
+ fetch_oc_miss:1,/* 60: Op cache miss for the sampled fetch */
+ fetch_l3_miss:1,/* 61: L3 cache miss for the sampled fetch */
+ reserved:2; /* 62-63: reserved */
+ };
+};
+
+/* MSR 0xc0011033: IBS Execution Control */
+union ibs_op_ctl {
+ __u64 val;
+ struct {
+ __u64 opmaxcnt:16, /* 0-15: periodic op max. count */
+ l3_miss_only:1, /* 16: Collect L3 miss samples only */
+ op_en:1, /* 17: op sampling enable */
+ op_val:1, /* 18: op sample valid */
+ cnt_ctl:1, /* 19: periodic op counter control */
+ opmaxcnt_ext:7, /* 20-26: upper 7 bits of periodic op maximum count */
+ reserved0:5, /* 27-31: reserved */
+ opcurcnt:27, /* 32-58: periodic op counter current count */
+ reserved1:5; /* 59-63: reserved */
+ };
+};
+
+/* MSR 0xc0011035: IBS Op Data 1 */
+union ibs_op_data {
+ __u64 val;
+ struct {
+ __u64 comp_to_ret_ctr:16, /* 0-15: op completion to retire count */
+ tag_to_ret_ctr:16, /* 15-31: op tag to retire count */
+ reserved1:2, /* 32-33: reserved */
+ op_return:1, /* 34: return op */
+ op_brn_taken:1, /* 35: taken branch op */
+ op_brn_misp:1, /* 36: mispredicted branch op */
+ op_brn_ret:1, /* 37: branch op retired */
+ op_rip_invalid:1, /* 38: RIP is invalid */
+ op_brn_fuse:1, /* 39: fused branch op */
+ op_microcode:1, /* 40: microcode op */
+ reserved2:23; /* 41-63: reserved */
+ };
+};
+
+/* MSR 0xc0011036: IBS Op Data 2 */
+union ibs_op_data2 {
+ __u64 val;
+ struct {
+ __u64 data_src_lo:3, /* 0-2: data source low */
+ reserved0:1, /* 3: reserved */
+ rmt_node:1, /* 4: destination node */
+ cache_hit_st:1, /* 5: cache hit state */
+ data_src_hi:2, /* 6-7: data source high */
+ reserved1:56; /* 8-63: reserved */
+ };
+};
+
+/* MSR 0xc0011037: IBS Op Data 3 */
+union ibs_op_data3 {
+ __u64 val;
+ struct {
+ __u64 ld_op:1, /* 0: load op */
+ st_op:1, /* 1: store op */
+ dc_l1tlb_miss:1, /* 2: data cache L1TLB miss */
+ dc_l2tlb_miss:1, /* 3: data cache L2TLB hit in 2M page */
+ dc_l1tlb_hit_2m:1, /* 4: data cache L1TLB hit in 2M page */
+ dc_l1tlb_hit_1g:1, /* 5: data cache L1TLB hit in 1G page */
+ dc_l2tlb_hit_2m:1, /* 6: data cache L2TLB hit in 2M page */
+ dc_miss:1, /* 7: data cache miss */
+ dc_mis_acc:1, /* 8: misaligned access */
+ reserved:4, /* 9-12: reserved */
+ dc_wc_mem_acc:1, /* 13: write combining memory access */
+ dc_uc_mem_acc:1, /* 14: uncacheable memory access */
+ dc_locked_op:1, /* 15: locked operation */
+ dc_miss_no_mab_alloc:1, /* 16: DC miss with no MAB allocated */
+ dc_lin_addr_valid:1, /* 17: data cache linear address valid */
+ dc_phy_addr_valid:1, /* 18: data cache physical address valid */
+ dc_l2_tlb_hit_1g:1, /* 19: data cache L2 hit in 1GB page */
+ l2_miss:1, /* 20: L2 cache miss */
+ sw_pf:1, /* 21: software prefetch */
+ op_mem_width:4, /* 22-25: load/store size in bytes */
+ op_dc_miss_open_mem_reqs:6, /* 26-31: outstanding mem reqs on DC fill */
+ dc_miss_lat:16, /* 32-47: data cache miss latency */
+ tlb_refill_lat:16; /* 48-63: L1 TLB refill latency */
+ };
+};
+
+/* MSR 0xc001103c: IBS Fetch Control Extended */
+union ic_ibs_extd_ctl {
+ __u64 val;
+ struct {
+ __u64 itlb_refill_lat:16, /* 0-15: ITLB Refill latency for sampled fetch */
+ reserved:48; /* 16-63: reserved */
+ };
+};
+
+/*
+ * IBS driver related
+ */
+
+struct perf_ibs_data {
+ u32 size;
+ union {
+ u32 data[0]; /* data buffer starts here */
+ u32 caps;
+ };
+ u64 regs[MSR_AMD64_IBS_REG_COUNT_MAX];
+};
diff --git a/arch/x86/include/asm/amd_hsmp.h b/arch/x86/include/asm/amd_hsmp.h
new file mode 100644
index 000000000000..03c2ce3edaf5
--- /dev/null
+++ b/arch/x86/include/asm/amd_hsmp.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+
+#ifndef _ASM_X86_AMD_HSMP_H_
+#define _ASM_X86_AMD_HSMP_H_
+
+#include <uapi/asm/amd_hsmp.h>
+
+#if IS_ENABLED(CONFIG_AMD_HSMP)
+int hsmp_send_message(struct hsmp_message *msg);
+#else
+static inline int hsmp_send_message(struct hsmp_message *msg)
+{
+ return -ENODEV;
+}
+#endif
+#endif /*_ASM_X86_AMD_HSMP_H_*/
diff --git a/arch/x86/include/asm/amd_iommu.h b/arch/x86/include/asm/amd_iommu.h
deleted file mode 100644
index a6863a2dec1f..000000000000
--- a/arch/x86/include/asm/amd_iommu.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Copyright (C) 2007-2010 Advanced Micro Devices, Inc.
- * Author: Joerg Roedel <joerg.roedel@amd.com>
- * Leo Duran <leo.duran@amd.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _ASM_X86_AMD_IOMMU_H
-#define _ASM_X86_AMD_IOMMU_H
-
-#include <linux/irqreturn.h>
-
-#ifdef CONFIG_AMD_IOMMU
-
-extern int amd_iommu_detect(void);
-
-#else
-
-static inline int amd_iommu_detect(void) { return -ENODEV; }
-
-#endif
-
-#endif /* _ASM_X86_AMD_IOMMU_H */
diff --git a/arch/x86/include/asm/amd_iommu_proto.h b/arch/x86/include/asm/amd_iommu_proto.h
deleted file mode 100644
index 916bc8111a01..000000000000
--- a/arch/x86/include/asm/amd_iommu_proto.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- * Copyright (C) 2009-2010 Advanced Micro Devices, Inc.
- * Author: Joerg Roedel <joerg.roedel@amd.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _ASM_X86_AMD_IOMMU_PROTO_H
-#define _ASM_X86_AMD_IOMMU_PROTO_H
-
-struct amd_iommu;
-
-extern int amd_iommu_init_dma_ops(void);
-extern int amd_iommu_init_passthrough(void);
-extern irqreturn_t amd_iommu_int_handler(int irq, void *data);
-extern void amd_iommu_flush_all_domains(void);
-extern void amd_iommu_flush_all_devices(void);
-extern void amd_iommu_apply_erratum_63(u16 devid);
-extern void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu);
-extern int amd_iommu_init_devices(void);
-extern void amd_iommu_uninit_devices(void);
-extern void amd_iommu_init_notifier(void);
-extern void amd_iommu_init_api(void);
-#ifndef CONFIG_AMD_IOMMU_STATS
-
-static inline void amd_iommu_stats_init(void) { }
-
-#endif /* !CONFIG_AMD_IOMMU_STATS */
-
-static inline bool is_rd890_iommu(struct pci_dev *pdev)
-{
- return (pdev->vendor == PCI_VENDOR_ID_ATI) &&
- (pdev->device == PCI_DEVICE_ID_RD890_IOMMU);
-}
-
-#endif /* _ASM_X86_AMD_IOMMU_PROTO_H */
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
deleted file mode 100644
index e3509fc303bf..000000000000
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ /dev/null
@@ -1,560 +0,0 @@
-/*
- * Copyright (C) 2007-2010 Advanced Micro Devices, Inc.
- * Author: Joerg Roedel <joerg.roedel@amd.com>
- * Leo Duran <leo.duran@amd.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _ASM_X86_AMD_IOMMU_TYPES_H
-#define _ASM_X86_AMD_IOMMU_TYPES_H
-
-#include <linux/types.h>
-#include <linux/mutex.h>
-#include <linux/list.h>
-#include <linux/spinlock.h>
-
-/*
- * Maximum number of IOMMUs supported
- */
-#define MAX_IOMMUS 32
-
-/*
- * some size calculation constants
- */
-#define DEV_TABLE_ENTRY_SIZE 32
-#define ALIAS_TABLE_ENTRY_SIZE 2
-#define RLOOKUP_TABLE_ENTRY_SIZE (sizeof(void *))
-
-/* Length of the MMIO region for the AMD IOMMU */
-#define MMIO_REGION_LENGTH 0x4000
-
-/* Capability offsets used by the driver */
-#define MMIO_CAP_HDR_OFFSET 0x00
-#define MMIO_RANGE_OFFSET 0x0c
-#define MMIO_MISC_OFFSET 0x10
-
-/* Masks, shifts and macros to parse the device range capability */
-#define MMIO_RANGE_LD_MASK 0xff000000
-#define MMIO_RANGE_FD_MASK 0x00ff0000
-#define MMIO_RANGE_BUS_MASK 0x0000ff00
-#define MMIO_RANGE_LD_SHIFT 24
-#define MMIO_RANGE_FD_SHIFT 16
-#define MMIO_RANGE_BUS_SHIFT 8
-#define MMIO_GET_LD(x) (((x) & MMIO_RANGE_LD_MASK) >> MMIO_RANGE_LD_SHIFT)
-#define MMIO_GET_FD(x) (((x) & MMIO_RANGE_FD_MASK) >> MMIO_RANGE_FD_SHIFT)
-#define MMIO_GET_BUS(x) (((x) & MMIO_RANGE_BUS_MASK) >> MMIO_RANGE_BUS_SHIFT)
-#define MMIO_MSI_NUM(x) ((x) & 0x1f)
-
-/* Flag masks for the AMD IOMMU exclusion range */
-#define MMIO_EXCL_ENABLE_MASK 0x01ULL
-#define MMIO_EXCL_ALLOW_MASK 0x02ULL
-
-/* Used offsets into the MMIO space */
-#define MMIO_DEV_TABLE_OFFSET 0x0000
-#define MMIO_CMD_BUF_OFFSET 0x0008
-#define MMIO_EVT_BUF_OFFSET 0x0010
-#define MMIO_CONTROL_OFFSET 0x0018
-#define MMIO_EXCL_BASE_OFFSET 0x0020
-#define MMIO_EXCL_LIMIT_OFFSET 0x0028
-#define MMIO_CMD_HEAD_OFFSET 0x2000
-#define MMIO_CMD_TAIL_OFFSET 0x2008
-#define MMIO_EVT_HEAD_OFFSET 0x2010
-#define MMIO_EVT_TAIL_OFFSET 0x2018
-#define MMIO_STATUS_OFFSET 0x2020
-
-/* MMIO status bits */
-#define MMIO_STATUS_COM_WAIT_INT_MASK 0x04
-
-/* event logging constants */
-#define EVENT_ENTRY_SIZE 0x10
-#define EVENT_TYPE_SHIFT 28
-#define EVENT_TYPE_MASK 0xf
-#define EVENT_TYPE_ILL_DEV 0x1
-#define EVENT_TYPE_IO_FAULT 0x2
-#define EVENT_TYPE_DEV_TAB_ERR 0x3
-#define EVENT_TYPE_PAGE_TAB_ERR 0x4
-#define EVENT_TYPE_ILL_CMD 0x5
-#define EVENT_TYPE_CMD_HARD_ERR 0x6
-#define EVENT_TYPE_IOTLB_INV_TO 0x7
-#define EVENT_TYPE_INV_DEV_REQ 0x8
-#define EVENT_DEVID_MASK 0xffff
-#define EVENT_DEVID_SHIFT 0
-#define EVENT_DOMID_MASK 0xffff
-#define EVENT_DOMID_SHIFT 0
-#define EVENT_FLAGS_MASK 0xfff
-#define EVENT_FLAGS_SHIFT 0x10
-
-/* feature control bits */
-#define CONTROL_IOMMU_EN 0x00ULL
-#define CONTROL_HT_TUN_EN 0x01ULL
-#define CONTROL_EVT_LOG_EN 0x02ULL
-#define CONTROL_EVT_INT_EN 0x03ULL
-#define CONTROL_COMWAIT_EN 0x04ULL
-#define CONTROL_PASSPW_EN 0x08ULL
-#define CONTROL_RESPASSPW_EN 0x09ULL
-#define CONTROL_COHERENT_EN 0x0aULL
-#define CONTROL_ISOC_EN 0x0bULL
-#define CONTROL_CMDBUF_EN 0x0cULL
-#define CONTROL_PPFLOG_EN 0x0dULL
-#define CONTROL_PPFINT_EN 0x0eULL
-
-/* command specific defines */
-#define CMD_COMPL_WAIT 0x01
-#define CMD_INV_DEV_ENTRY 0x02
-#define CMD_INV_IOMMU_PAGES 0x03
-
-#define CMD_COMPL_WAIT_STORE_MASK 0x01
-#define CMD_COMPL_WAIT_INT_MASK 0x02
-#define CMD_INV_IOMMU_PAGES_SIZE_MASK 0x01
-#define CMD_INV_IOMMU_PAGES_PDE_MASK 0x02
-
-#define CMD_INV_IOMMU_ALL_PAGES_ADDRESS 0x7fffffffffffffffULL
-
-/* macros and definitions for device table entries */
-#define DEV_ENTRY_VALID 0x00
-#define DEV_ENTRY_TRANSLATION 0x01
-#define DEV_ENTRY_IR 0x3d
-#define DEV_ENTRY_IW 0x3e
-#define DEV_ENTRY_NO_PAGE_FAULT 0x62
-#define DEV_ENTRY_EX 0x67
-#define DEV_ENTRY_SYSMGT1 0x68
-#define DEV_ENTRY_SYSMGT2 0x69
-#define DEV_ENTRY_INIT_PASS 0xb8
-#define DEV_ENTRY_EINT_PASS 0xb9
-#define DEV_ENTRY_NMI_PASS 0xba
-#define DEV_ENTRY_LINT0_PASS 0xbe
-#define DEV_ENTRY_LINT1_PASS 0xbf
-#define DEV_ENTRY_MODE_MASK 0x07
-#define DEV_ENTRY_MODE_SHIFT 0x09
-
-/* constants to configure the command buffer */
-#define CMD_BUFFER_SIZE 8192
-#define CMD_BUFFER_UNINITIALIZED 1
-#define CMD_BUFFER_ENTRIES 512
-#define MMIO_CMD_SIZE_SHIFT 56
-#define MMIO_CMD_SIZE_512 (0x9ULL << MMIO_CMD_SIZE_SHIFT)
-
-/* constants for event buffer handling */
-#define EVT_BUFFER_SIZE 8192 /* 512 entries */
-#define EVT_LEN_MASK (0x9ULL << 56)
-
-#define PAGE_MODE_NONE 0x00
-#define PAGE_MODE_1_LEVEL 0x01
-#define PAGE_MODE_2_LEVEL 0x02
-#define PAGE_MODE_3_LEVEL 0x03
-#define PAGE_MODE_4_LEVEL 0x04
-#define PAGE_MODE_5_LEVEL 0x05
-#define PAGE_MODE_6_LEVEL 0x06
-
-#define PM_LEVEL_SHIFT(x) (12 + ((x) * 9))
-#define PM_LEVEL_SIZE(x) (((x) < 6) ? \
- ((1ULL << PM_LEVEL_SHIFT((x))) - 1): \
- (0xffffffffffffffffULL))
-#define PM_LEVEL_INDEX(x, a) (((a) >> PM_LEVEL_SHIFT((x))) & 0x1ffULL)
-#define PM_LEVEL_ENC(x) (((x) << 9) & 0xe00ULL)
-#define PM_LEVEL_PDE(x, a) ((a) | PM_LEVEL_ENC((x)) | \
- IOMMU_PTE_P | IOMMU_PTE_IR | IOMMU_PTE_IW)
-#define PM_PTE_LEVEL(pte) (((pte) >> 9) & 0x7ULL)
-
-#define PM_MAP_4k 0
-#define PM_ADDR_MASK 0x000ffffffffff000ULL
-#define PM_MAP_MASK(lvl) (PM_ADDR_MASK & \
- (~((1ULL << (12 + ((lvl) * 9))) - 1)))
-#define PM_ALIGNED(lvl, addr) ((PM_MAP_MASK(lvl) & (addr)) == (addr))
-
-/*
- * Returns the page table level to use for a given page size
- * Pagesize is expected to be a power-of-two
- */
-#define PAGE_SIZE_LEVEL(pagesize) \
- ((__ffs(pagesize) - 12) / 9)
-/*
- * Returns the number of ptes to use for a given page size
- * Pagesize is expected to be a power-of-two
- */
-#define PAGE_SIZE_PTE_COUNT(pagesize) \
- (1ULL << ((__ffs(pagesize) - 12) % 9))
-
-/*
- * Aligns a given io-virtual address to a given page size
- * Pagesize is expected to be a power-of-two
- */
-#define PAGE_SIZE_ALIGN(address, pagesize) \
- ((address) & ~((pagesize) - 1))
-/*
- * Creates an IOMMU PTE for an address an a given pagesize
- * The PTE has no permission bits set
- * Pagesize is expected to be a power-of-two larger than 4096
- */
-#define PAGE_SIZE_PTE(address, pagesize) \
- (((address) | ((pagesize) - 1)) & \
- (~(pagesize >> 1)) & PM_ADDR_MASK)
-
-/*
- * Takes a PTE value with mode=0x07 and returns the page size it maps
- */
-#define PTE_PAGE_SIZE(pte) \
- (1ULL << (1 + ffz(((pte) | 0xfffULL))))
-
-#define IOMMU_PTE_P (1ULL << 0)
-#define IOMMU_PTE_TV (1ULL << 1)
-#define IOMMU_PTE_U (1ULL << 59)
-#define IOMMU_PTE_FC (1ULL << 60)
-#define IOMMU_PTE_IR (1ULL << 61)
-#define IOMMU_PTE_IW (1ULL << 62)
-
-#define IOMMU_PAGE_MASK (((1ULL << 52) - 1) & ~0xfffULL)
-#define IOMMU_PTE_PRESENT(pte) ((pte) & IOMMU_PTE_P)
-#define IOMMU_PTE_PAGE(pte) (phys_to_virt((pte) & IOMMU_PAGE_MASK))
-#define IOMMU_PTE_MODE(pte) (((pte) >> 9) & 0x07)
-
-#define IOMMU_PROT_MASK 0x03
-#define IOMMU_PROT_IR 0x01
-#define IOMMU_PROT_IW 0x02
-
-/* IOMMU capabilities */
-#define IOMMU_CAP_IOTLB 24
-#define IOMMU_CAP_NPCACHE 26
-
-#define MAX_DOMAIN_ID 65536
-
-/* FIXME: move this macro to <linux/pci.h> */
-#define PCI_BUS(x) (((x) >> 8) & 0xff)
-
-/* Protection domain flags */
-#define PD_DMA_OPS_MASK (1UL << 0) /* domain used for dma_ops */
-#define PD_DEFAULT_MASK (1UL << 1) /* domain is a default dma_ops
- domain for an IOMMU */
-#define PD_PASSTHROUGH_MASK (1UL << 2) /* domain has no page
- translation */
-
-extern bool amd_iommu_dump;
-#define DUMP_printk(format, arg...) \
- do { \
- if (amd_iommu_dump) \
- printk(KERN_INFO "AMD-Vi: " format, ## arg); \
- } while(0);
-
-/* global flag if IOMMUs cache non-present entries */
-extern bool amd_iommu_np_cache;
-
-/*
- * Make iterating over all IOMMUs easier
- */
-#define for_each_iommu(iommu) \
- list_for_each_entry((iommu), &amd_iommu_list, list)
-#define for_each_iommu_safe(iommu, next) \
- list_for_each_entry_safe((iommu), (next), &amd_iommu_list, list)
-
-#define APERTURE_RANGE_SHIFT 27 /* 128 MB */
-#define APERTURE_RANGE_SIZE (1ULL << APERTURE_RANGE_SHIFT)
-#define APERTURE_RANGE_PAGES (APERTURE_RANGE_SIZE >> PAGE_SHIFT)
-#define APERTURE_MAX_RANGES 32 /* allows 4GB of DMA address space */
-#define APERTURE_RANGE_INDEX(a) ((a) >> APERTURE_RANGE_SHIFT)
-#define APERTURE_PAGE_INDEX(a) (((a) >> 21) & 0x3fULL)
-
-/*
- * This structure contains generic data for IOMMU protection domains
- * independent of their use.
- */
-struct protection_domain {
- struct list_head list; /* for list of all protection domains */
- struct list_head dev_list; /* List of all devices in this domain */
- spinlock_t lock; /* mostly used to lock the page table*/
- struct mutex api_lock; /* protect page tables in the iommu-api path */
- u16 id; /* the domain id written to the device table */
- int mode; /* paging mode (0-6 levels) */
- u64 *pt_root; /* page table root pointer */
- unsigned long flags; /* flags to find out type of domain */
- bool updated; /* complete domain flush required */
- unsigned dev_cnt; /* devices assigned to this domain */
- unsigned dev_iommu[MAX_IOMMUS]; /* per-IOMMU reference count */
- void *priv; /* private data */
-
-};
-
-/*
- * This struct contains device specific data for the IOMMU
- */
-struct iommu_dev_data {
- struct list_head list; /* For domain->dev_list */
- struct device *dev; /* Device this data belong to */
- struct device *alias; /* The Alias Device */
- struct protection_domain *domain; /* Domain the device is bound to */
- atomic_t bind; /* Domain attach reverent count */
-};
-
-/*
- * For dynamic growth the aperture size is split into ranges of 128MB of
- * DMA address space each. This struct represents one such range.
- */
-struct aperture_range {
-
- /* address allocation bitmap */
- unsigned long *bitmap;
-
- /*
- * Array of PTE pages for the aperture. In this array we save all the
- * leaf pages of the domain page table used for the aperture. This way
- * we don't need to walk the page table to find a specific PTE. We can
- * just calculate its address in constant time.
- */
- u64 *pte_pages[64];
-
- unsigned long offset;
-};
-
-/*
- * Data container for a dma_ops specific protection domain
- */
-struct dma_ops_domain {
- struct list_head list;
-
- /* generic protection domain information */
- struct protection_domain domain;
-
- /* size of the aperture for the mappings */
- unsigned long aperture_size;
-
- /* address we start to search for free addresses */
- unsigned long next_address;
-
- /* address space relevant data */
- struct aperture_range *aperture[APERTURE_MAX_RANGES];
-
- /* This will be set to true when TLB needs to be flushed */
- bool need_flush;
-
- /*
- * if this is a preallocated domain, keep the device for which it was
- * preallocated in this variable
- */
- u16 target_dev;
-};
-
-/*
- * Structure where we save information about one hardware AMD IOMMU in the
- * system.
- */
-struct amd_iommu {
- struct list_head list;
-
- /* Index within the IOMMU array */
- int index;
-
- /* locks the accesses to the hardware */
- spinlock_t lock;
-
- /* Pointer to PCI device of this IOMMU */
- struct pci_dev *dev;
-
- /* physical address of MMIO space */
- u64 mmio_phys;
- /* virtual address of MMIO space */
- u8 *mmio_base;
-
- /* capabilities of that IOMMU read from ACPI */
- u32 cap;
-
- /* flags read from acpi table */
- u8 acpi_flags;
-
- /*
- * Capability pointer. There could be more than one IOMMU per PCI
- * device function if there are more than one AMD IOMMU capability
- * pointers.
- */
- u16 cap_ptr;
-
- /* pci domain of this IOMMU */
- u16 pci_seg;
-
- /* first device this IOMMU handles. read from PCI */
- u16 first_device;
- /* last device this IOMMU handles. read from PCI */
- u16 last_device;
-
- /* start of exclusion range of that IOMMU */
- u64 exclusion_start;
- /* length of exclusion range of that IOMMU */
- u64 exclusion_length;
-
- /* command buffer virtual address */
- u8 *cmd_buf;
- /* size of command buffer */
- u32 cmd_buf_size;
-
- /* size of event buffer */
- u32 evt_buf_size;
- /* event buffer virtual address */
- u8 *evt_buf;
- /* MSI number for event interrupt */
- u16 evt_msi_num;
-
- /* true if interrupts for this IOMMU are already enabled */
- bool int_enabled;
-
- /* if one, we need to send a completion wait command */
- bool need_sync;
-
- /* becomes true if a command buffer reset is running */
- bool reset_in_progress;
-
- /* default dma_ops domain for that IOMMU */
- struct dma_ops_domain *default_dom;
-
- /*
- * We can't rely on the BIOS to restore all values on reinit, so we
- * need to stash them
- */
-
- /* The iommu BAR */
- u32 stored_addr_lo;
- u32 stored_addr_hi;
-
- /*
- * Each iommu has 6 l1s, each of which is documented as having 0x12
- * registers
- */
- u32 stored_l1[6][0x12];
-
- /* The l2 indirect registers */
- u32 stored_l2[0x83];
-};
-
-/*
- * List with all IOMMUs in the system. This list is not locked because it is
- * only written and read at driver initialization or suspend time
- */
-extern struct list_head amd_iommu_list;
-
-/*
- * Array with pointers to each IOMMU struct
- * The indices are referenced in the protection domains
- */
-extern struct amd_iommu *amd_iommus[MAX_IOMMUS];
-
-/* Number of IOMMUs present in the system */
-extern int amd_iommus_present;
-
-/*
- * Declarations for the global list of all protection domains
- */
-extern spinlock_t amd_iommu_pd_lock;
-extern struct list_head amd_iommu_pd_list;
-
-/*
- * Structure defining one entry in the device table
- */
-struct dev_table_entry {
- u32 data[8];
-};
-
-/*
- * One entry for unity mappings parsed out of the ACPI table.
- */
-struct unity_map_entry {
- struct list_head list;
-
- /* starting device id this entry is used for (including) */
- u16 devid_start;
- /* end device id this entry is used for (including) */
- u16 devid_end;
-
- /* start address to unity map (including) */
- u64 address_start;
- /* end address to unity map (including) */
- u64 address_end;
-
- /* required protection */
- int prot;
-};
-
-/*
- * List of all unity mappings. It is not locked because as runtime it is only
- * read. It is created at ACPI table parsing time.
- */
-extern struct list_head amd_iommu_unity_map;
-
-/*
- * Data structures for device handling
- */
-
-/*
- * Device table used by hardware. Read and write accesses by software are
- * locked with the amd_iommu_pd_table lock.
- */
-extern struct dev_table_entry *amd_iommu_dev_table;
-
-/*
- * Alias table to find requestor ids to device ids. Not locked because only
- * read on runtime.
- */
-extern u16 *amd_iommu_alias_table;
-
-/*
- * Reverse lookup table to find the IOMMU which translates a specific device.
- */
-extern struct amd_iommu **amd_iommu_rlookup_table;
-
-/* size of the dma_ops aperture as power of 2 */
-extern unsigned amd_iommu_aperture_order;
-
-/* largest PCI device id we expect translation requests for */
-extern u16 amd_iommu_last_bdf;
-
-/* allocation bitmap for domain ids */
-extern unsigned long *amd_iommu_pd_alloc_bitmap;
-
-/*
- * If true, the addresses will be flushed on unmap time, not when
- * they are reused
- */
-extern bool amd_iommu_unmap_flush;
-
-/* takes bus and device/function and returns the device id
- * FIXME: should that be in generic PCI code? */
-static inline u16 calc_devid(u8 bus, u8 devfn)
-{
- return (((u16)bus) << 8) | devfn;
-}
-
-#ifdef CONFIG_AMD_IOMMU_STATS
-
-struct __iommu_counter {
- char *name;
- struct dentry *dent;
- u64 value;
-};
-
-#define DECLARE_STATS_COUNTER(nm) \
- static struct __iommu_counter nm = { \
- .name = #nm, \
- }
-
-#define INC_STATS_COUNTER(name) name.value += 1
-#define ADD_STATS_COUNTER(name, x) name.value += (x)
-#define SUB_STATS_COUNTER(name, x) name.value -= (x)
-
-#else /* CONFIG_AMD_IOMMU_STATS */
-
-#define DECLARE_STATS_COUNTER(name)
-#define INC_STATS_COUNTER(name)
-#define ADD_STATS_COUNTER(name, x)
-#define SUB_STATS_COUNTER(name, x)
-
-#endif /* CONFIG_AMD_IOMMU_STATS */
-
-#endif /* _ASM_X86_AMD_IOMMU_TYPES_H */
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
index 331682231bb4..ed0eaf65c437 100644
--- a/arch/x86/include/asm/amd_nb.h
+++ b/arch/x86/include/asm/amd_nb.h
@@ -1,7 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_AMD_NB_H
#define _ASM_X86_AMD_NB_H
+#include <linux/ioport.h>
#include <linux/pci.h>
+#include <linux/refcount.h>
struct amd_nb_bus_dev_range {
u8 bus;
@@ -9,20 +12,58 @@ struct amd_nb_bus_dev_range {
u8 dev_limit;
};
-extern const struct pci_device_id amd_nb_misc_ids[];
extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[];
-struct bootnode;
extern bool early_is_amd_nb(u32 value);
-extern int amd_cache_northbridges(void);
+extern struct resource *amd_get_mmconfig_range(struct resource *res);
extern void amd_flush_garts(void);
extern int amd_numa_init(void);
extern int amd_get_subcaches(int);
-extern int amd_set_subcaches(int, int);
+extern int amd_set_subcaches(int, unsigned long);
+
+extern int amd_smn_read(u16 node, u32 address, u32 *value);
+extern int amd_smn_write(u16 node, u32 address, u32 value);
+
+struct amd_l3_cache {
+ unsigned indices;
+ u8 subcaches[4];
+};
+
+struct threshold_block {
+ unsigned int block; /* Number within bank */
+ unsigned int bank; /* MCA bank the block belongs to */
+ unsigned int cpu; /* CPU which controls MCA bank */
+ u32 address; /* MSR address for the block */
+ u16 interrupt_enable; /* Enable/Disable APIC interrupt */
+ bool interrupt_capable; /* Bank can generate an interrupt. */
+
+ u16 threshold_limit; /*
+ * Value upon which threshold
+ * interrupt is generated.
+ */
+
+ struct kobject kobj; /* sysfs object */
+ struct list_head miscj; /*
+ * List of threshold blocks
+ * within a bank.
+ */
+};
+
+struct threshold_bank {
+ struct kobject *kobj;
+ struct threshold_block *blocks;
+
+ /* initialized to the number of CPUs on the node sharing this bank */
+ refcount_t cpus;
+ unsigned int shared;
+};
struct amd_northbridge {
+ struct pci_dev *root;
struct pci_dev *misc;
struct pci_dev *link;
+ struct amd_l3_cache l3_cache;
+ struct threshold_bank *bank4;
};
struct amd_northbridge_info {
@@ -30,7 +71,6 @@ struct amd_northbridge_info {
u64 flags;
struct amd_northbridge *nb;
};
-extern struct amd_northbridge_info amd_northbridges;
#define AMD_NB_GART BIT(0)
#define AMD_NB_L3_INDEX_DISABLE BIT(1)
@@ -38,19 +78,38 @@ extern struct amd_northbridge_info amd_northbridges;
#ifdef CONFIG_AMD_NB
-static inline u16 amd_nb_num(void)
-{
- return amd_northbridges.num;
-}
+u16 amd_nb_num(void);
+bool amd_nb_has_feature(unsigned int feature);
+struct amd_northbridge *node_to_amd_nb(int node);
-static inline bool amd_nb_has_feature(unsigned feature)
+static inline u16 amd_pci_dev_to_node_id(struct pci_dev *pdev)
{
- return ((amd_northbridges.flags & feature) == feature);
+ struct pci_dev *misc;
+ int i;
+
+ for (i = 0; i != amd_nb_num(); i++) {
+ misc = node_to_amd_nb(i)->misc;
+
+ if (pci_domain_nr(misc->bus) == pci_domain_nr(pdev->bus) &&
+ PCI_SLOT(misc->devfn) == PCI_SLOT(pdev->devfn))
+ return i;
+ }
+
+ WARN(1, "Unable to find AMD Northbridge id for %s\n", pci_name(pdev));
+ return 0;
}
-static inline struct amd_northbridge *node_to_amd_nb(int node)
+static inline bool amd_gart_present(void)
{
- return (node < amd_northbridges.num) ? &amd_northbridges.nb[node] : NULL;
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
+ return false;
+
+ /* GART present only on Fam15h, upto model 0fh */
+ if (boot_cpu_data.x86 == 0xf || boot_cpu_data.x86 == 0x10 ||
+ (boot_cpu_data.x86 == 0x15 && boot_cpu_data.x86_model < 0x10))
+ return true;
+
+ return false;
}
#else
@@ -58,6 +117,7 @@ static inline struct amd_northbridge *node_to_amd_nb(int node)
#define amd_nb_num(x) 0
#define amd_nb_has_feature(x) false
#define node_to_amd_nb(x) NULL
+#define amd_gart_present(x) false
#endif
diff --git a/arch/x86/include/asm/apb_timer.h b/arch/x86/include/asm/apb_timer.h
deleted file mode 100644
index 2fefa501d3ba..000000000000
--- a/arch/x86/include/asm/apb_timer.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * apb_timer.h: Driver for Langwell APB timer based on Synopsis DesignWare
- *
- * (C) Copyright 2009 Intel Corporation
- * Author: Jacob Pan (jacob.jun.pan@intel.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2
- * of the License.
- *
- * Note:
- */
-
-#ifndef ASM_X86_APBT_H
-#define ASM_X86_APBT_H
-#include <linux/sfi.h>
-
-#ifdef CONFIG_APB_TIMER
-
-/* Langwell DW APB timer registers */
-#define APBTMR_N_LOAD_COUNT 0x00
-#define APBTMR_N_CURRENT_VALUE 0x04
-#define APBTMR_N_CONTROL 0x08
-#define APBTMR_N_EOI 0x0c
-#define APBTMR_N_INT_STATUS 0x10
-
-#define APBTMRS_INT_STATUS 0xa0
-#define APBTMRS_EOI 0xa4
-#define APBTMRS_RAW_INT_STATUS 0xa8
-#define APBTMRS_COMP_VERSION 0xac
-#define APBTMRS_REG_SIZE 0x14
-
-/* register bits */
-#define APBTMR_CONTROL_ENABLE (1<<0)
-#define APBTMR_CONTROL_MODE_PERIODIC (1<<1) /*1: periodic 0:free running */
-#define APBTMR_CONTROL_INT (1<<2)
-
-/* default memory mapped register base */
-#define LNW_SCU_ADDR 0xFF100000
-#define LNW_EXT_TIMER_OFFSET 0x1B800
-#define APBT_DEFAULT_BASE (LNW_SCU_ADDR+LNW_EXT_TIMER_OFFSET)
-#define LNW_EXT_TIMER_PGOFFSET 0x800
-
-/* APBT clock speed range from PCLK to fabric base, 25-100MHz */
-#define APBT_MAX_FREQ 50
-#define APBT_MIN_FREQ 1
-#define APBT_MMAP_SIZE 1024
-
-#define APBT_DEV_USED 1
-
-extern void apbt_time_init(void);
-extern struct clock_event_device *global_clock_event;
-extern unsigned long apbt_quick_calibrate(void);
-extern int arch_setup_apbt_irqs(int irq, int trigger, int mask, int cpu);
-extern void apbt_setup_secondary_clock(void);
-
-extern struct sfi_timer_table_entry *sfi_get_mtmr(int hint);
-extern void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr);
-extern int sfi_mtimer_num;
-
-#else /* CONFIG_APB_TIMER */
-
-static inline unsigned long apbt_quick_calibrate(void) {return 0; }
-static inline void apbt_time_init(void) {return 0; }
-
-#endif
-#endif /* ASM_X86_APBT_H */
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index 2b7d573be549..3216da7074ba 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -1,18 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _ASM_X86_APIC_H
#define _ASM_X86_APIC_H
#include <linux/cpumask.h>
-#include <linux/pm.h>
#include <asm/alternative.h>
#include <asm/cpufeature.h>
-#include <asm/processor.h>
#include <asm/apicdef.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/fixmap.h>
#include <asm/mpspec.h>
-#include <asm/system.h>
#include <asm/msr.h>
+#include <asm/hardirq.h>
#define ARCH_APICTIMER_STOPS_ON_C3 1
@@ -23,6 +22,11 @@
#define APIC_VERBOSE 1
#define APIC_DEBUG 2
+/* Macros for apic_extnmi which controls external NMI masking */
+#define APIC_EXTNMI_BSP 0 /* Default */
+#define APIC_EXTNMI_ALL 1
+#define APIC_EXTNMI_NONE 2
+
/*
* Define the default level of output to be very little
* This can be turned up by using apic=verbose for more
@@ -45,10 +49,20 @@ static inline void generic_apic_probe(void)
#ifdef CONFIG_X86_LOCAL_APIC
-extern unsigned int apic_verbosity;
+extern int apic_verbosity;
extern int local_apic_timer_c2_ok;
extern int disable_apic;
+extern unsigned int lapic_timer_period;
+
+extern enum apic_intr_mode_id apic_intr_mode;
+enum apic_intr_mode_id {
+ APIC_PIC,
+ APIC_VIRTUAL_WIRE,
+ APIC_VIRTUAL_WIRE_NO_CONFIG,
+ APIC_SYMMETRIC_IO,
+ APIC_SYMMETRIC_IO_NO_ROUTING
+};
#ifdef CONFIG_SMP
extern void __inquire_remote_apic(int apicid);
@@ -84,24 +98,11 @@ static inline bool apic_from_smp_config(void)
#include <asm/paravirt.h>
#endif
-#ifdef CONFIG_X86_64
-extern int is_vsmp_box(void);
-#else
-static inline int is_vsmp_box(void)
-{
- return 0;
-}
-#endif
-extern void xapic_wait_icr_idle(void);
-extern u32 safe_xapic_wait_icr_idle(void);
-extern void xapic_icr_write(u32, u32);
-extern int setup_profiling_timer(unsigned int);
-
static inline void native_apic_mem_write(u32 reg, u32 v)
{
volatile u32 *addr = (volatile u32 *)(APIC_BASE + reg);
- alternative_io("movl %0, %1", "xchgl %0, %1", X86_FEATURE_11AP,
+ alternative_io("movl %0, %P1", "xchgl %0, %P1", X86_BUG_11AP,
ASM_OUTPUT2("=r" (v), "=m" (*addr)),
ASM_OUTPUT2("0" (v), "m" (*addr)));
}
@@ -116,19 +117,85 @@ extern u32 native_safe_apic_wait_icr_idle(void);
extern void native_apic_icr_write(u32 low, u32 id);
extern u64 native_apic_icr_read(void);
-extern int x2apic_mode;
+static inline bool apic_is_x2apic_enabled(void)
+{
+ u64 msr;
+
+ if (rdmsrl_safe(MSR_IA32_APICBASE, &msr))
+ return false;
+ return msr & X2APIC_ENABLE;
+}
+
+extern void enable_IR_x2apic(void);
+
+extern int get_physical_broadcast(void);
+
+extern int lapic_get_maxlvt(void);
+extern void clear_local_APIC(void);
+extern void disconnect_bsp_APIC(int virt_wire_setup);
+extern void disable_local_APIC(void);
+extern void apic_soft_disable(void);
+extern void lapic_shutdown(void);
+extern void sync_Arb_IDs(void);
+extern void init_bsp_APIC(void);
+extern void apic_intr_mode_select(void);
+extern void apic_intr_mode_init(void);
+extern void init_apic_mappings(void);
+void register_lapic_address(unsigned long address);
+extern void setup_boot_APIC_clock(void);
+extern void setup_secondary_APIC_clock(void);
+extern void lapic_update_tsc_freq(void);
+
+#ifdef CONFIG_X86_64
+static inline int apic_force_enable(unsigned long addr)
+{
+ return -1;
+}
+#else
+extern int apic_force_enable(unsigned long addr);
+#endif
+
+extern void apic_ap_setup(void);
-#ifdef CONFIG_X86_X2APIC
/*
- * Make previous memory operations globally visible before
- * sending the IPI through x2apic wrmsr. We need a serializing instruction or
- * mfence for this.
+ * On 32bit this is mach-xxx local
*/
-static inline void x2apic_wrmsr_fence(void)
+#ifdef CONFIG_X86_64
+extern int apic_is_clustered_box(void);
+#else
+static inline int apic_is_clustered_box(void)
{
- asm volatile("mfence" : : : "memory");
+ return 0;
}
+#endif
+
+extern int setup_APIC_eilvt(u8 lvt_off, u8 vector, u8 msg_type, u8 mask);
+extern void lapic_assign_system_vectors(void);
+extern void lapic_assign_legacy_vector(unsigned int isairq, bool replace);
+extern void lapic_update_legacy_vectors(void);
+extern void lapic_online(void);
+extern void lapic_offline(void);
+extern bool apic_needs_pit(void);
+
+extern void apic_send_IPI_allbutself(unsigned int vector);
+#else /* !CONFIG_X86_LOCAL_APIC */
+static inline void lapic_shutdown(void) { }
+#define local_apic_timer_c2_ok 1
+static inline void init_apic_mappings(void) { }
+static inline void disable_local_APIC(void) { }
+# define setup_boot_APIC_clock x86_init_noop
+# define setup_secondary_APIC_clock x86_init_noop
+static inline void lapic_update_tsc_freq(void) { }
+static inline void init_bsp_APIC(void) { }
+static inline void apic_intr_mode_select(void) { }
+static inline void apic_intr_mode_init(void) { }
+static inline void lapic_assign_system_vectors(void) { }
+static inline void lapic_assign_legacy_vector(unsigned int i, bool r) { }
+static inline bool apic_needs_pit(void) { return true; }
+#endif /* !CONFIG_X86_LOCAL_APIC */
+
+#ifdef CONFIG_X86_X2APIC
static inline void native_apic_msr_write(u32 reg, u32 v)
{
if (reg == APIC_DFR || reg == APIC_ID || reg == APIC_LDR ||
@@ -138,6 +205,11 @@ static inline void native_apic_msr_write(u32 reg, u32 v)
wrmsr(APIC_BASE_MSR + (reg >> 4), v, 0);
}
+static inline void native_apic_msr_eoi_write(u32 reg, u32 v)
+{
+ __wrmsr(APIC_BASE_MSR + (APIC_EOI >> 4), APIC_EOI_ACK, 0);
+}
+
static inline u32 native_apic_msr_read(u32 reg)
{
u64 msr;
@@ -174,102 +246,29 @@ static inline u64 native_x2apic_icr_read(void)
return val;
}
+extern int x2apic_mode;
extern int x2apic_phys;
-extern void check_x2apic(void);
-extern void enable_x2apic(void);
-extern void x2apic_icr_write(u32 low, u32 id);
-static inline int x2apic_enabled(void)
-{
- u64 msr;
-
- if (!cpu_has_x2apic)
- return 0;
-
- rdmsrl(MSR_IA32_APICBASE, msr);
- if (msr & X2APIC_ENABLE)
- return 1;
- return 0;
-}
-
-#define x2apic_supported() (cpu_has_x2apic)
-static inline void x2apic_force_phys(void)
-{
- x2apic_phys = 1;
-}
-#else
-static inline void check_x2apic(void)
-{
-}
-static inline void enable_x2apic(void)
-{
-}
+extern void __init x2apic_set_max_apicid(u32 apicid);
+extern void x2apic_setup(void);
static inline int x2apic_enabled(void)
{
- return 0;
-}
-static inline void x2apic_force_phys(void)
-{
+ return boot_cpu_has(X86_FEATURE_X2APIC) && apic_is_x2apic_enabled();
}
-#define x2apic_preenabled 0
-#define x2apic_supported() 0
-#endif
-
-extern void enable_IR_x2apic(void);
-
-extern int get_physical_broadcast(void);
-
-extern int lapic_get_maxlvt(void);
-extern void clear_local_APIC(void);
-extern void connect_bsp_APIC(void);
-extern void disconnect_bsp_APIC(int virt_wire_setup);
-extern void disable_local_APIC(void);
-extern void lapic_shutdown(void);
-extern int verify_local_APIC(void);
-extern void sync_Arb_IDs(void);
-extern void init_bsp_APIC(void);
-extern void setup_local_APIC(void);
-extern void end_local_APIC_setup(void);
-extern void bsp_end_local_APIC_setup(void);
-extern void init_apic_mappings(void);
-void register_lapic_address(unsigned long address);
-extern void setup_boot_APIC_clock(void);
-extern void setup_secondary_APIC_clock(void);
-extern int APIC_init_uniprocessor(void);
-extern int apic_force_enable(unsigned long addr);
-
-/*
- * On 32bit this is mach-xxx local
- */
-#ifdef CONFIG_X86_64
-extern int apic_is_clustered_box(void);
-#else
-static inline int apic_is_clustered_box(void)
-{
- return 0;
-}
-#endif
-
-extern int setup_APIC_eilvt(u8 lvt_off, u8 vector, u8 msg_type, u8 mask);
-
-#else /* !CONFIG_X86_LOCAL_APIC */
-static inline void lapic_shutdown(void) { }
-#define local_apic_timer_c2_ok 1
-static inline void init_apic_mappings(void) { }
-static inline void disable_local_APIC(void) { }
-# define setup_boot_APIC_clock x86_init_noop
-# define setup_secondary_APIC_clock x86_init_noop
-#endif /* !CONFIG_X86_LOCAL_APIC */
+#define x2apic_supported() (boot_cpu_has(X86_FEATURE_X2APIC))
+#else /* !CONFIG_X86_X2APIC */
+static inline void x2apic_setup(void) { }
+static inline int x2apic_enabled(void) { return 0; }
-#ifdef CONFIG_X86_64
-#define SET_APIC_ID(x) (apic->set_apic_id(x))
-#else
+#define x2apic_mode (0)
+#define x2apic_supported() (0)
+#endif /* !CONFIG_X86_X2APIC */
+extern void __init check_x2apic(void);
-#endif
+struct irq_data;
/*
* Copyright 2004 James Cleverdon, IBM.
- * Subject to the GNU Public License, v.2
*
* Generic APIC sub-arch data struct.
*
@@ -278,77 +277,58 @@ static inline void disable_local_APIC(void) { }
* James Cleverdon.
*/
struct apic {
- char *name;
-
- int (*probe)(void);
- int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
- int (*apic_id_registered)(void);
-
- u32 irq_delivery_mode;
- u32 irq_dest_mode;
-
- const struct cpumask *(*target_cpus)(void);
-
- int disable_esr;
-
- int dest_logical;
- unsigned long (*check_apicid_used)(physid_mask_t *map, int apicid);
- unsigned long (*check_apicid_present)(int apicid);
-
- void (*vector_allocation_domain)(int cpu, struct cpumask *retmask);
- void (*init_apic_ldr)(void);
-
- void (*ioapic_phys_id_map)(physid_mask_t *phys_map, physid_mask_t *retmap);
-
- void (*setup_apic_routing)(void);
- int (*multi_timer_check)(int apic, int irq);
- int (*cpu_present_to_apicid)(int mps_cpu);
- void (*apicid_to_cpu_present)(int phys_apicid, physid_mask_t *retmap);
- void (*setup_portio_remap)(void);
- int (*check_phys_apicid_present)(int phys_apicid);
- void (*enable_apic_mode)(void);
- int (*phys_pkg_id)(int cpuid_apic, int index_msb);
-
- /*
- * When one of the next two hooks returns 1 the apic
- * is switched to this. Essentially they are additional
- * probe functions:
- */
- int (*mps_oem_check)(struct mpc_table *mpc, char *oem, char *productid);
-
- unsigned int (*get_apic_id)(unsigned long x);
- unsigned long (*set_apic_id)(unsigned int id);
- unsigned long apic_id_mask;
-
- unsigned int (*cpu_mask_to_apicid)(const struct cpumask *cpumask);
- unsigned int (*cpu_mask_to_apicid_and)(const struct cpumask *cpumask,
- const struct cpumask *andmask);
-
- /* ipi */
- void (*send_IPI_mask)(const struct cpumask *mask, int vector);
- void (*send_IPI_mask_allbutself)(const struct cpumask *mask,
- int vector);
- void (*send_IPI_allbutself)(int vector);
- void (*send_IPI_all)(int vector);
- void (*send_IPI_self)(int vector);
+ /* Hotpath functions first */
+ void (*eoi_write)(u32 reg, u32 v);
+ void (*native_eoi_write)(u32 reg, u32 v);
+ void (*write)(u32 reg, u32 v);
+ u32 (*read)(u32 reg);
+
+ /* IPI related functions */
+ void (*wait_icr_idle)(void);
+ u32 (*safe_wait_icr_idle)(void);
+
+ void (*send_IPI)(int cpu, int vector);
+ void (*send_IPI_mask)(const struct cpumask *mask, int vector);
+ void (*send_IPI_mask_allbutself)(const struct cpumask *msk, int vec);
+ void (*send_IPI_allbutself)(int vector);
+ void (*send_IPI_all)(int vector);
+ void (*send_IPI_self)(int vector);
+
+ u32 disable_esr;
+
+ enum apic_delivery_modes delivery_mode;
+ bool dest_mode_logical;
+
+ u32 (*calc_dest_apicid)(unsigned int cpu);
+
+ /* ICR related functions */
+ u64 (*icr_read)(void);
+ void (*icr_write)(u32 low, u32 high);
+
+ /* Probe, setup and smpboot functions */
+ int (*probe)(void);
+ int (*acpi_madt_oem_check)(char *oem_id, char *oem_table_id);
+ int (*apic_id_valid)(u32 apicid);
+ int (*apic_id_registered)(void);
+
+ bool (*check_apicid_used)(physid_mask_t *map, int apicid);
+ void (*init_apic_ldr)(void);
+ void (*ioapic_phys_id_map)(physid_mask_t *phys_map, physid_mask_t *retmap);
+ void (*setup_apic_routing)(void);
+ int (*cpu_present_to_apicid)(int mps_cpu);
+ void (*apicid_to_cpu_present)(int phys_apicid, physid_mask_t *retmap);
+ int (*check_phys_apicid_present)(int phys_apicid);
+ int (*phys_pkg_id)(int cpuid_apic, int index_msb);
+
+ u32 (*get_apic_id)(unsigned long x);
+ u32 (*set_apic_id)(unsigned int id);
/* wakeup_secondary_cpu */
- int (*wakeup_secondary_cpu)(int apicid, unsigned long start_eip);
-
- int trampoline_phys_low;
- int trampoline_phys_high;
+ int (*wakeup_secondary_cpu)(int apicid, unsigned long start_eip);
+ /* wakeup secondary CPU using 64-bit wakeup point */
+ int (*wakeup_secondary_cpu_64)(int apicid, unsigned long start_eip);
- void (*wait_for_init_deassert)(atomic_t *deassert);
- void (*smp_callin_clear_local_apic)(void);
- void (*inquire_remote_apic)(int apicid);
-
- /* apic ops */
- u32 (*read)(u32 reg);
- void (*write)(u32 reg, u32 v);
- u64 (*icr_read)(void);
- void (*icr_write)(u32 low, u32 high);
- void (*wait_icr_idle)(void);
- u32 (*safe_wait_icr_idle)(void);
+ void (*inquire_remote_apic)(int apicid);
#ifdef CONFIG_X86_32
/*
@@ -362,10 +342,8 @@ struct apic {
* won't be applied properly during early boot in this case.
*/
int (*x86_32_early_logical_apicid)(int cpu);
-
- /* determine CPU -> NUMA node mapping */
- int (*x86_32_numa_cpu_node)(int cpu);
#endif
+ char *name;
};
/*
@@ -376,14 +354,35 @@ struct apic {
extern struct apic *apic;
/*
+ * APIC drivers are probed based on how they are listed in the .apicdrivers
+ * section. So the order is important and enforced by the ordering
+ * of different apic driver files in the Makefile.
+ *
+ * For the files having two apic drivers, we use apic_drivers()
+ * to enforce the order with in them.
+ */
+#define apic_driver(sym) \
+ static const struct apic *__apicdrivers_##sym __used \
+ __aligned(sizeof(struct apic *)) \
+ __section(".apicdrivers") = { &sym }
+
+#define apic_drivers(sym1, sym2) \
+ static struct apic *__apicdrivers_##sym1##sym2[2] __used \
+ __aligned(sizeof(struct apic *)) \
+ __section(".apicdrivers") = { &sym1, &sym2 }
+
+extern struct apic *__apicdrivers[], *__apicdrivers_end[];
+
+/*
* APIC functionality to boot other CPUs - only used on SMP:
*/
#ifdef CONFIG_SMP
-extern atomic_t init_deasserted;
extern int wakeup_secondary_cpu_via_nmi(int apicid, unsigned long start_eip);
+extern int lapic_can_unplug_cpu(void);
#endif
#ifdef CONFIG_X86_LOCAL_APIC
+
static inline u32 apic_read(u32 reg)
{
return apic->read(reg);
@@ -394,6 +393,11 @@ static inline void apic_write(u32 reg, u32 val)
apic->write(reg, val);
}
+static inline void apic_eoi(void)
+{
+ apic->eoi_write(APIC_EOI, APIC_EOI_ACK);
+}
+
static inline u64 apic_icr_read(void)
{
return apic->icr_read();
@@ -414,26 +418,38 @@ static inline u32 safe_apic_wait_icr_idle(void)
return apic->safe_wait_icr_idle();
}
+extern void __init apic_set_eoi_write(void (*eoi_write)(u32 reg, u32 v));
+
#else /* CONFIG_X86_LOCAL_APIC */
static inline u32 apic_read(u32 reg) { return 0; }
static inline void apic_write(u32 reg, u32 val) { }
+static inline void apic_eoi(void) { }
static inline u64 apic_icr_read(void) { return 0; }
static inline void apic_icr_write(u32 low, u32 high) { }
static inline void apic_wait_icr_idle(void) { }
static inline u32 safe_apic_wait_icr_idle(void) { return 0; }
+static inline void apic_set_eoi_write(void (*eoi_write)(u32 reg, u32 v)) {}
#endif /* CONFIG_X86_LOCAL_APIC */
+extern void apic_ack_irq(struct irq_data *data);
+
static inline void ack_APIC_irq(void)
{
/*
* ack_APIC_irq() actually gets compiled as a single instruction
* ... yummie.
*/
+ apic_eoi();
+}
- /* Docs say use 0 for future compatibility */
- apic_write(APIC_EOI, 0);
+
+static inline bool lapic_vector_set_in_irr(unsigned int vector)
+{
+ u32 irr = apic_read(APIC_IRR + (vector / 32 * 0x10));
+
+ return !!(irr & (1U << (vector % 32)));
}
static inline unsigned default_get_apic_id(unsigned long x)
@@ -447,162 +463,63 @@ static inline unsigned default_get_apic_id(unsigned long x)
}
/*
- * Warm reset vector default position:
+ * Warm reset vector position:
*/
-#define DEFAULT_TRAMPOLINE_PHYS_LOW 0x467
-#define DEFAULT_TRAMPOLINE_PHYS_HIGH 0x469
-
-#ifdef CONFIG_X86_64
-extern struct apic apic_flat;
-extern struct apic apic_physflat;
-extern struct apic apic_x2apic_cluster;
-extern struct apic apic_x2apic_phys;
-extern int default_acpi_madt_oem_check(char *, char *);
-
-extern void apic_send_IPI_self(int vector);
-
-extern struct apic apic_x2apic_uv_x;
-DECLARE_PER_CPU(int, x2apic_extra_bits);
-
-extern int default_cpu_present_to_apicid(int mps_cpu);
-extern int default_check_phys_apicid_present(int phys_apicid);
-#endif
-
-static inline void default_wait_for_init_deassert(atomic_t *deassert)
-{
- while (!atomic_read(deassert))
- cpu_relax();
- return;
-}
+#define TRAMPOLINE_PHYS_LOW 0x467
+#define TRAMPOLINE_PHYS_HIGH 0x469
extern void generic_bigsmp_probe(void);
-
#ifdef CONFIG_X86_LOCAL_APIC
#include <asm/smp.h>
#define APIC_DFR_VALUE (APIC_DFR_FLAT)
-static inline const struct cpumask *default_target_cpus(void)
-{
-#ifdef CONFIG_SMP
- return cpu_online_mask;
-#else
- return cpumask_of(0);
-#endif
-}
-
-DECLARE_EARLY_PER_CPU(u16, x86_bios_cpu_apicid);
+DECLARE_EARLY_PER_CPU_READ_MOSTLY(u16, x86_bios_cpu_apicid);
+extern struct apic apic_noop;
static inline unsigned int read_apic_id(void)
{
- unsigned int reg;
-
- reg = apic_read(APIC_ID);
+ unsigned int reg = apic_read(APIC_ID);
return apic->get_apic_id(reg);
}
-extern void default_setup_apic_routing(void);
-
-extern struct apic apic_noop;
-
-#ifdef CONFIG_X86_32
-
-extern struct apic apic_default;
-
-static inline int noop_x86_32_early_logical_apicid(int cpu)
-{
- return BAD_APICID;
-}
-
-/*
- * Set up the logical destination ID.
- *
- * Intel recommends to set DFR, LDR and TPR before enabling
- * an APIC. See e.g. "AP-388 82489DX User's Manual" (Intel
- * document number 292116). So here it goes...
- */
-extern void default_init_apic_ldr(void);
-
-static inline int default_apic_id_registered(void)
-{
- return physid_isset(read_apic_id(), phys_cpu_present_map);
-}
-
-static inline int default_phys_pkg_id(int cpuid_apic, int index_msb)
-{
- return cpuid_apic >> index_msb;
-}
-
-extern int default_x86_32_numa_cpu_node(int cpu);
-
+#ifdef CONFIG_X86_64
+typedef int (*wakeup_cpu_handler)(int apicid, unsigned long start_eip);
+extern void acpi_wake_cpu_handler_update(wakeup_cpu_handler handler);
#endif
-static inline unsigned int
-default_cpu_mask_to_apicid(const struct cpumask *cpumask)
-{
- return cpumask_bits(cpumask)[0] & APIC_ALL_CPUS;
-}
-
-static inline unsigned int
-default_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
- const struct cpumask *andmask)
-{
- unsigned long mask1 = cpumask_bits(cpumask)[0];
- unsigned long mask2 = cpumask_bits(andmask)[0];
- unsigned long mask3 = cpumask_bits(cpu_online_mask)[0];
-
- return (unsigned int)(mask1 & mask2 & mask3);
-}
-
-static inline unsigned long default_check_apicid_used(physid_mask_t *map, int apicid)
-{
- return physid_isset(apicid, *map);
-}
-
-static inline unsigned long default_check_apicid_present(int bit)
-{
- return physid_isset(bit, phys_cpu_present_map);
-}
-
-static inline void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
-{
- *retmap = *phys_map;
-}
+extern int default_apic_id_valid(u32 apicid);
+extern int default_acpi_madt_oem_check(char *, char *);
+extern void default_setup_apic_routing(void);
-static inline int __default_cpu_present_to_apicid(int mps_cpu)
-{
- if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu))
- return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu);
- else
- return BAD_APICID;
-}
+extern u32 apic_default_calc_apicid(unsigned int cpu);
+extern u32 apic_flat_calc_apicid(unsigned int cpu);
-static inline int
-__default_check_phys_apicid_present(int phys_apicid)
-{
- return physid_isset(phys_apicid, phys_cpu_present_map);
-}
+extern bool default_check_apicid_used(physid_mask_t *map, int apicid);
+extern void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap);
+extern int default_cpu_present_to_apicid(int mps_cpu);
+extern int default_check_phys_apicid_present(int phys_apicid);
-#ifdef CONFIG_X86_32
-static inline int default_cpu_present_to_apicid(int mps_cpu)
-{
- return __default_cpu_present_to_apicid(mps_cpu);
-}
+#endif /* CONFIG_X86_LOCAL_APIC */
-static inline int
-default_check_phys_apicid_present(int phys_apicid)
-{
- return __default_check_phys_apicid_present(phys_apicid);
-}
+#ifdef CONFIG_SMP
+bool apic_id_is_primary_thread(unsigned int id);
+void apic_smt_update(void);
#else
-extern int default_cpu_present_to_apicid(int mps_cpu);
-extern int default_check_phys_apicid_present(int phys_apicid);
+static inline bool apic_id_is_primary_thread(unsigned int id) { return false; }
+static inline void apic_smt_update(void) { }
#endif
-#endif /* CONFIG_X86_LOCAL_APIC */
+struct msi_msg;
+struct irq_cfg;
+
+extern void __irq_msi_compose_msg(struct irq_cfg *cfg, struct msi_msg *msg,
+ bool dmar);
+
+extern void ioapic_zap_locks(void);
#endif /* _ASM_X86_APIC_H */
diff --git a/arch/x86/include/asm/apicdef.h b/arch/x86/include/asm/apicdef.h
index d87988bacf3e..68d213e83fcc 100644
--- a/arch/x86/include/asm/apicdef.h
+++ b/arch/x86/include/asm/apicdef.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_APICDEF_H
#define _ASM_X86_APICDEF_H
@@ -37,7 +38,7 @@
#define APIC_ARBPRI_MASK 0xFFu
#define APIC_PROCPRI 0xA0
#define APIC_EOI 0xB0
-#define APIC_EIO_ACK 0x0
+#define APIC_EOI_ACK 0x0 /* Docs say 0 for future compat. */
#define APIC_RRR 0xC0
#define APIC_LDR 0xD0
#define APIC_LDR_MASK (0xFFu << 24)
@@ -78,6 +79,7 @@
#define APIC_DEST_LOGICAL 0x00800
#define APIC_DEST_PHYSICAL 0x00000
#define APIC_DM_FIXED 0x00000
+#define APIC_DM_FIXED_MASK 0x00700
#define APIC_DM_LOWEST 0x00100
#define APIC_DM_SMI 0x00200
#define APIC_DM_REMRD 0x00300
@@ -87,19 +89,15 @@
#define APIC_DM_EXTINT 0x00700
#define APIC_VECTOR_MASK 0x000FF
#define APIC_ICR2 0x310
-#define GET_APIC_DEST_FIELD(x) (((x) >> 24) & 0xFF)
-#define SET_APIC_DEST_FIELD(x) ((x) << 24)
+#define GET_XAPIC_DEST_FIELD(x) (((x) >> 24) & 0xFF)
+#define SET_XAPIC_DEST_FIELD(x) ((x) << 24)
#define APIC_LVTT 0x320
#define APIC_LVTTHMR 0x330
#define APIC_LVTPC 0x340
#define APIC_LVT0 0x350
-#define APIC_LVT_TIMER_BASE_MASK (0x3 << 18)
-#define GET_APIC_TIMER_BASE(x) (((x) >> 18) & 0x3)
-#define SET_APIC_TIMER_BASE(x) (((x) << 18))
-#define APIC_TIMER_BASE_CLKIN 0x0
-#define APIC_TIMER_BASE_TMBASE 0x1
-#define APIC_TIMER_BASE_DIV 0x2
+#define APIC_LVT_TIMER_ONESHOT (0 << 17)
#define APIC_LVT_TIMER_PERIODIC (1 << 17)
+#define APIC_LVT_TIMER_TSCDEADLINE (2 << 17)
#define APIC_LVT_MASKED (1 << 16)
#define APIC_LVT_LEVEL_TRIGGER (1 << 15)
#define APIC_LVT_REMOTE_IRR (1 << 14)
@@ -141,6 +139,7 @@
#define APIC_BASE (fix_to_virt(FIX_APIC_BASE))
#define APIC_BASE_MSR 0x800
+#define XAPIC_ENABLE (1UL << 11)
#define X2APIC_ENABLE (1UL << 10)
#ifdef CONFIG_X86_32
@@ -427,15 +426,13 @@ struct local_apic {
#define BAD_APICID 0xFFFFu
#endif
-enum ioapic_irq_destination_types {
- dest_Fixed = 0,
- dest_LowestPrio = 1,
- dest_SMI = 2,
- dest__reserved_1 = 3,
- dest_NMI = 4,
- dest_INIT = 5,
- dest__reserved_2 = 6,
- dest_ExtINT = 7
+enum apic_delivery_modes {
+ APIC_DELIVERY_MODE_FIXED = 0,
+ APIC_DELIVERY_MODE_LOWESTPRIO = 1,
+ APIC_DELIVERY_MODE_SMI = 2,
+ APIC_DELIVERY_MODE_NMI = 4,
+ APIC_DELIVERY_MODE_INIT = 5,
+ APIC_DELIVERY_MODE_EXTINT = 7,
};
#endif /* _ASM_X86_APICDEF_H */
diff --git a/arch/x86/include/asm/apm.h b/arch/x86/include/asm/apm.h
index 20370c6db74b..4d4015ddcf26 100644
--- a/arch/x86/include/asm/apm.h
+++ b/arch/x86/include/asm/apm.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Machine specific APM BIOS functions for generic.
* Split out from apm.c by Osamu Tomita <tomita@cinet.co.jp>
@@ -45,11 +46,11 @@ static inline void apm_bios_call_asm(u32 func, u32 ebx_in, u32 ecx_in,
: "memory", "cc");
}
-static inline u8 apm_bios_call_simple_asm(u32 func, u32 ebx_in,
- u32 ecx_in, u32 *eax)
+static inline bool apm_bios_call_simple_asm(u32 func, u32 ebx_in,
+ u32 ecx_in, u32 *eax)
{
int cx, dx, si;
- u8 error;
+ bool error;
/*
* N.B. We do NOT need a cld after the BIOS call
diff --git a/arch/x86/include/asm/arch_hweight.h b/arch/x86/include/asm/arch_hweight.h
index 9686c3d9ff73..ba88edd0d58b 100644
--- a/arch/x86/include/asm/arch_hweight.h
+++ b/arch/x86/include/asm/arch_hweight.h
@@ -1,33 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_HWEIGHT_H
#define _ASM_X86_HWEIGHT_H
+#include <asm/cpufeatures.h>
+
#ifdef CONFIG_64BIT
-/* popcnt %edi, %eax -- redundant REX prefix for alignment */
-#define POPCNT32 ".byte 0xf3,0x40,0x0f,0xb8,0xc7"
-/* popcnt %rdi, %rax */
-#define POPCNT64 ".byte 0xf3,0x48,0x0f,0xb8,0xc7"
#define REG_IN "D"
#define REG_OUT "a"
#else
-/* popcnt %eax, %eax */
-#define POPCNT32 ".byte 0xf3,0x0f,0xb8,0xc0"
#define REG_IN "a"
#define REG_OUT "a"
#endif
-/*
- * __sw_hweightXX are called from within the alternatives below
- * and callee-clobbered registers need to be taken care of. See
- * ARCH_HWEIGHT_CFLAGS in <arch/x86/Kconfig> for the respective
- * compiler switches.
- */
-static inline unsigned int __arch_hweight32(unsigned int w)
+static __always_inline unsigned int __arch_hweight32(unsigned int w)
{
- unsigned int res = 0;
+ unsigned int res;
- asm (ALTERNATIVE("call __sw_hweight32", POPCNT32, X86_FEATURE_POPCNT)
- : "="REG_OUT (res)
- : REG_IN (w));
+ asm (ALTERNATIVE("call __sw_hweight32", "popcntl %1, %0", X86_FEATURE_POPCNT)
+ : "="REG_OUT (res)
+ : REG_IN (w));
return res;
}
@@ -42,20 +33,23 @@ static inline unsigned int __arch_hweight8(unsigned int w)
return __arch_hweight32(w & 0xff);
}
+#ifdef CONFIG_X86_32
static inline unsigned long __arch_hweight64(__u64 w)
{
- unsigned long res = 0;
-
-#ifdef CONFIG_X86_32
return __arch_hweight32((u32)w) +
__arch_hweight32((u32)(w >> 32));
+}
#else
- asm (ALTERNATIVE("call __sw_hweight64", POPCNT64, X86_FEATURE_POPCNT)
- : "="REG_OUT (res)
- : REG_IN (w));
-#endif /* CONFIG_X86_32 */
+static __always_inline unsigned long __arch_hweight64(__u64 w)
+{
+ unsigned long res;
+
+ asm (ALTERNATIVE("call __sw_hweight64", "popcntq %1, %0", X86_FEATURE_POPCNT)
+ : "="REG_OUT (res)
+ : REG_IN (w));
return res;
}
+#endif /* CONFIG_X86_32 */
#endif
diff --git a/arch/x86/include/asm/archrandom.h b/arch/x86/include/asm/archrandom.h
new file mode 100644
index 000000000000..02bae8e0758b
--- /dev/null
+++ b/arch/x86/include/asm/archrandom.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * This file is part of the Linux kernel.
+ *
+ * Copyright (c) 2011-2014, Intel Corporation
+ * Authors: Fenghua Yu <fenghua.yu@intel.com>,
+ * H. Peter Anvin <hpa@linux.intel.com>
+ */
+
+#ifndef ASM_X86_ARCHRANDOM_H
+#define ASM_X86_ARCHRANDOM_H
+
+#include <asm/processor.h>
+#include <asm/cpufeature.h>
+
+#define RDRAND_RETRY_LOOPS 10
+
+/* Unconditional execution of RDRAND and RDSEED */
+
+static inline bool __must_check rdrand_long(unsigned long *v)
+{
+ bool ok;
+ unsigned int retry = RDRAND_RETRY_LOOPS;
+ do {
+ asm volatile("rdrand %[out]"
+ CC_SET(c)
+ : CC_OUT(c) (ok), [out] "=r" (*v));
+ if (ok)
+ return true;
+ } while (--retry);
+ return false;
+}
+
+static inline bool __must_check rdseed_long(unsigned long *v)
+{
+ bool ok;
+ asm volatile("rdseed %[out]"
+ CC_SET(c)
+ : CC_OUT(c) (ok), [out] "=r" (*v));
+ return ok;
+}
+
+/*
+ * These are the generic interfaces; they must not be declared if the
+ * stubs in <linux/random.h> are to be invoked.
+ */
+
+static inline size_t __must_check arch_get_random_longs(unsigned long *v, size_t max_longs)
+{
+ return max_longs && static_cpu_has(X86_FEATURE_RDRAND) && rdrand_long(v) ? 1 : 0;
+}
+
+static inline size_t __must_check arch_get_random_seed_longs(unsigned long *v, size_t max_longs)
+{
+ return max_longs && static_cpu_has(X86_FEATURE_RDSEED) && rdseed_long(v) ? 1 : 0;
+}
+
+#ifndef CONFIG_UML
+void x86_init_rdrand(struct cpuinfo_x86 *c);
+#endif
+
+#endif /* ASM_X86_ARCHRANDOM_H */
diff --git a/arch/x86/include/asm/asm-prototypes.h b/arch/x86/include/asm/asm-prototypes.h
new file mode 100644
index 000000000000..b1a98fa38828
--- /dev/null
+++ b/arch/x86/include/asm/asm-prototypes.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#include <asm/ftrace.h>
+#include <linux/uaccess.h>
+#include <linux/pgtable.h>
+#include <asm/string.h>
+#include <asm/page.h>
+#include <asm/checksum.h>
+#include <asm/mce.h>
+
+#include <asm-generic/asm-prototypes.h>
+
+#include <asm/special_insns.h>
+#include <asm/preempt.h>
+#include <asm/asm.h>
+#include <asm/gsseg.h>
+
+#ifndef CONFIG_X86_CMPXCHG64
+extern void cmpxchg8b_emu(void);
+#endif
+
diff --git a/arch/x86/include/asm/asm.h b/arch/x86/include/asm/asm.h
index b3ed1e1460ff..fbcfec4dc4cc 100644
--- a/arch/x86/include/asm/asm.h
+++ b/arch/x86/include/asm/asm.h
@@ -1,22 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_ASM_H
#define _ASM_X86_ASM_H
#ifdef __ASSEMBLY__
-# define __ASM_FORM(x) x
-# define __ASM_EX_SEC .section __ex_table, "a"
+# define __ASM_FORM(x, ...) x,## __VA_ARGS__
+# define __ASM_FORM_RAW(x, ...) x,## __VA_ARGS__
+# define __ASM_FORM_COMMA(x, ...) x,## __VA_ARGS__,
+# define __ASM_REGPFX %
#else
-# define __ASM_FORM(x) " " #x " "
-# define __ASM_EX_SEC " .section __ex_table,\"a\"\n"
+#include <linux/stringify.h>
+# define __ASM_FORM(x, ...) " " __stringify(x,##__VA_ARGS__) " "
+# define __ASM_FORM_RAW(x, ...) __stringify(x,##__VA_ARGS__)
+# define __ASM_FORM_COMMA(x, ...) " " __stringify(x,##__VA_ARGS__) ","
+# define __ASM_REGPFX %%
#endif
-#ifdef CONFIG_X86_32
-# define __ASM_SEL(a,b) __ASM_FORM(a)
+#define _ASM_BYTES(x, ...) __ASM_FORM(.byte x,##__VA_ARGS__ ;)
+
+#ifndef __x86_64__
+/* 32 bit */
+# define __ASM_SEL(a,b) __ASM_FORM(a)
+# define __ASM_SEL_RAW(a,b) __ASM_FORM_RAW(a)
#else
-# define __ASM_SEL(a,b) __ASM_FORM(b)
+/* 64 bit */
+# define __ASM_SEL(a,b) __ASM_FORM(b)
+# define __ASM_SEL_RAW(a,b) __ASM_FORM_RAW(b)
#endif
-#define __ASM_SIZE(inst) __ASM_SEL(inst##l, inst##q)
-#define __ASM_REG(reg) __ASM_SEL(e##reg, r##reg)
+#define __ASM_SIZE(inst, ...) __ASM_SEL(inst##l##__VA_ARGS__, \
+ inst##q##__VA_ARGS__)
+#define __ASM_REG(reg) __ASM_SEL_RAW(e##reg, r##reg)
#define _ASM_PTR __ASM_SEL(.long, .quad)
#define _ASM_ALIGN __ASM_SEL(.balign 4, .balign 8)
@@ -27,6 +40,7 @@
#define _ASM_ADD __ASM_SIZE(add)
#define _ASM_SUB __ASM_SIZE(sub)
#define _ASM_XADD __ASM_SIZE(xadd)
+#define _ASM_MUL __ASM_SIZE(mul)
#define _ASM_AX __ASM_REG(ax)
#define _ASM_BX __ASM_REG(bx)
@@ -37,19 +51,175 @@
#define _ASM_SI __ASM_REG(si)
#define _ASM_DI __ASM_REG(di)
-/* Exception table entry */
-#ifdef __ASSEMBLY__
-# define _ASM_EXTABLE(from,to) \
- __ASM_EX_SEC ; \
- _ASM_ALIGN ; \
- _ASM_PTR from , to ; \
- .previous
+/* Adds a (%rip) suffix on 64 bits only; for immediate memory references */
+#define _ASM_RIP(x) __ASM_SEL_RAW(x, x (__ASM_REGPFX rip))
+
+#ifndef __x86_64__
+/* 32 bit */
+
+#define _ASM_ARG1 _ASM_AX
+#define _ASM_ARG2 _ASM_DX
+#define _ASM_ARG3 _ASM_CX
+
+#define _ASM_ARG1L eax
+#define _ASM_ARG2L edx
+#define _ASM_ARG3L ecx
+
+#define _ASM_ARG1W ax
+#define _ASM_ARG2W dx
+#define _ASM_ARG3W cx
+
+#define _ASM_ARG1B al
+#define _ASM_ARG2B dl
+#define _ASM_ARG3B cl
+
+#else
+/* 64 bit */
+
+#define _ASM_ARG1 _ASM_DI
+#define _ASM_ARG2 _ASM_SI
+#define _ASM_ARG3 _ASM_DX
+#define _ASM_ARG4 _ASM_CX
+#define _ASM_ARG5 r8
+#define _ASM_ARG6 r9
+
+#define _ASM_ARG1Q rdi
+#define _ASM_ARG2Q rsi
+#define _ASM_ARG3Q rdx
+#define _ASM_ARG4Q rcx
+#define _ASM_ARG5Q r8
+#define _ASM_ARG6Q r9
+
+#define _ASM_ARG1L edi
+#define _ASM_ARG2L esi
+#define _ASM_ARG3L edx
+#define _ASM_ARG4L ecx
+#define _ASM_ARG5L r8d
+#define _ASM_ARG6L r9d
+
+#define _ASM_ARG1W di
+#define _ASM_ARG2W si
+#define _ASM_ARG3W dx
+#define _ASM_ARG4W cx
+#define _ASM_ARG5W r8w
+#define _ASM_ARG6W r9w
+
+#define _ASM_ARG1B dil
+#define _ASM_ARG2B sil
+#define _ASM_ARG3B dl
+#define _ASM_ARG4B cl
+#define _ASM_ARG5B r8b
+#define _ASM_ARG6B r9b
+
+#endif
+
+/*
+ * Macros to generate condition code outputs from inline assembly,
+ * The output operand must be type "bool".
+ */
+#ifdef __GCC_ASM_FLAG_OUTPUTS__
+# define CC_SET(c) "\n\t/* output condition code " #c "*/\n"
+# define CC_OUT(c) "=@cc" #c
#else
-# define _ASM_EXTABLE(from,to) \
- __ASM_EX_SEC \
- _ASM_ALIGN "\n" \
- _ASM_PTR #from "," #to "\n" \
- " .previous\n"
+# define CC_SET(c) "\n\tset" #c " %[_cc_" #c "]\n"
+# define CC_OUT(c) [_cc_ ## c] "=qm"
#endif
+#ifdef __KERNEL__
+
+# include <asm/extable_fixup_types.h>
+
+/* Exception table entry */
+#ifdef __ASSEMBLY__
+
+# define _ASM_EXTABLE_TYPE(from, to, type) \
+ .pushsection "__ex_table","a" ; \
+ .balign 4 ; \
+ .long (from) - . ; \
+ .long (to) - . ; \
+ .long type ; \
+ .popsection
+
+# ifdef CONFIG_KPROBES
+# define _ASM_NOKPROBE(entry) \
+ .pushsection "_kprobe_blacklist","aw" ; \
+ _ASM_ALIGN ; \
+ _ASM_PTR (entry); \
+ .popsection
+# else
+# define _ASM_NOKPROBE(entry)
+# endif
+
+#else /* ! __ASSEMBLY__ */
+
+# define DEFINE_EXTABLE_TYPE_REG \
+ ".macro extable_type_reg type:req reg:req\n" \
+ ".set .Lfound, 0\n" \
+ ".set .Lregnr, 0\n" \
+ ".irp rs,rax,rcx,rdx,rbx,rsp,rbp,rsi,rdi,r8,r9,r10,r11,r12,r13,r14,r15\n" \
+ ".ifc \\reg, %%\\rs\n" \
+ ".set .Lfound, .Lfound+1\n" \
+ ".long \\type + (.Lregnr << 8)\n" \
+ ".endif\n" \
+ ".set .Lregnr, .Lregnr+1\n" \
+ ".endr\n" \
+ ".set .Lregnr, 0\n" \
+ ".irp rs,eax,ecx,edx,ebx,esp,ebp,esi,edi,r8d,r9d,r10d,r11d,r12d,r13d,r14d,r15d\n" \
+ ".ifc \\reg, %%\\rs\n" \
+ ".set .Lfound, .Lfound+1\n" \
+ ".long \\type + (.Lregnr << 8)\n" \
+ ".endif\n" \
+ ".set .Lregnr, .Lregnr+1\n" \
+ ".endr\n" \
+ ".if (.Lfound != 1)\n" \
+ ".error \"extable_type_reg: bad register argument\"\n" \
+ ".endif\n" \
+ ".endm\n"
+
+# define UNDEFINE_EXTABLE_TYPE_REG \
+ ".purgem extable_type_reg\n"
+
+# define _ASM_EXTABLE_TYPE(from, to, type) \
+ " .pushsection \"__ex_table\",\"a\"\n" \
+ " .balign 4\n" \
+ " .long (" #from ") - .\n" \
+ " .long (" #to ") - .\n" \
+ " .long " __stringify(type) " \n" \
+ " .popsection\n"
+
+# define _ASM_EXTABLE_TYPE_REG(from, to, type, reg) \
+ " .pushsection \"__ex_table\",\"a\"\n" \
+ " .balign 4\n" \
+ " .long (" #from ") - .\n" \
+ " .long (" #to ") - .\n" \
+ DEFINE_EXTABLE_TYPE_REG \
+ "extable_type_reg reg=" __stringify(reg) ", type=" __stringify(type) " \n"\
+ UNDEFINE_EXTABLE_TYPE_REG \
+ " .popsection\n"
+
+/* For C file, we already have NOKPROBE_SYMBOL macro */
+
+/*
+ * This output constraint should be used for any inline asm which has a "call"
+ * instruction. Otherwise the asm may be inserted before the frame pointer
+ * gets set up by the containing function. If you forget to do this, objtool
+ * may print a "call without frame pointer save/setup" warning.
+ */
+register unsigned long current_stack_pointer asm(_ASM_SP);
+#define ASM_CALL_CONSTRAINT "+r" (current_stack_pointer)
+#endif /* __ASSEMBLY__ */
+
+#define _ASM_EXTABLE(from, to) \
+ _ASM_EXTABLE_TYPE(from, to, EX_TYPE_DEFAULT)
+
+#define _ASM_EXTABLE_UA(from, to) \
+ _ASM_EXTABLE_TYPE(from, to, EX_TYPE_UACCESS)
+
+#define _ASM_EXTABLE_CPY(from, to) \
+ _ASM_EXTABLE_TYPE(from, to, EX_TYPE_COPY)
+
+#define _ASM_EXTABLE_FAULT(from, to) \
+ _ASM_EXTABLE_TYPE(from, to, EX_TYPE_FAULT)
+
+#endif /* __KERNEL__ */
#endif /* _ASM_X86_ASM_H */
diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index 952a826ac4e5..5e754e895767 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -1,72 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_ATOMIC_H
#define _ASM_X86_ATOMIC_H
#include <linux/compiler.h>
#include <linux/types.h>
-#include <asm/processor.h>
#include <asm/alternative.h>
#include <asm/cmpxchg.h>
+#include <asm/rmwcc.h>
+#include <asm/barrier.h>
/*
* Atomic operations that C can't guarantee us. Useful for
* resource counting etc..
*/
-#define ATOMIC_INIT(i) { (i) }
-
/**
- * atomic_read - read atomic variable
+ * arch_atomic_read - read atomic variable
* @v: pointer of type atomic_t
*
* Atomically reads the value of @v.
*/
-static inline int atomic_read(const atomic_t *v)
+static __always_inline int arch_atomic_read(const atomic_t *v)
{
- return (*(volatile int *)&(v)->counter);
+ /*
+ * Note for KASAN: we deliberately don't use READ_ONCE_NOCHECK() here,
+ * it's non-inlined function that increases binary size and stack usage.
+ */
+ return __READ_ONCE((v)->counter);
}
/**
- * atomic_set - set atomic variable
+ * arch_atomic_set - set atomic variable
* @v: pointer of type atomic_t
* @i: required value
*
* Atomically sets the value of @v to @i.
*/
-static inline void atomic_set(atomic_t *v, int i)
+static __always_inline void arch_atomic_set(atomic_t *v, int i)
{
- v->counter = i;
+ __WRITE_ONCE(v->counter, i);
}
/**
- * atomic_add - add integer to atomic variable
+ * arch_atomic_add - add integer to atomic variable
* @i: integer value to add
* @v: pointer of type atomic_t
*
* Atomically adds @i to @v.
*/
-static inline void atomic_add(int i, atomic_t *v)
+static __always_inline void arch_atomic_add(int i, atomic_t *v)
{
asm volatile(LOCK_PREFIX "addl %1,%0"
: "+m" (v->counter)
- : "ir" (i));
+ : "ir" (i) : "memory");
}
/**
- * atomic_sub - subtract integer from atomic variable
+ * arch_atomic_sub - subtract integer from atomic variable
* @i: integer value to subtract
* @v: pointer of type atomic_t
*
* Atomically subtracts @i from @v.
*/
-static inline void atomic_sub(int i, atomic_t *v)
+static __always_inline void arch_atomic_sub(int i, atomic_t *v)
{
asm volatile(LOCK_PREFIX "subl %1,%0"
: "+m" (v->counter)
- : "ir" (i));
+ : "ir" (i) : "memory");
}
/**
- * atomic_sub_and_test - subtract value from variable and test result
+ * arch_atomic_sub_and_test - subtract value from variable and test result
* @i: integer value to subtract
* @v: pointer of type atomic_t
*
@@ -74,78 +78,68 @@ static inline void atomic_sub(int i, atomic_t *v)
* true if the result is zero, or false for all
* other cases.
*/
-static inline int atomic_sub_and_test(int i, atomic_t *v)
+static __always_inline bool arch_atomic_sub_and_test(int i, atomic_t *v)
{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1"
- : "+m" (v->counter), "=qm" (c)
- : "ir" (i) : "memory");
- return c;
+ return GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, e, "er", i);
}
+#define arch_atomic_sub_and_test arch_atomic_sub_and_test
/**
- * atomic_inc - increment atomic variable
+ * arch_atomic_inc - increment atomic variable
* @v: pointer of type atomic_t
*
* Atomically increments @v by 1.
*/
-static inline void atomic_inc(atomic_t *v)
+static __always_inline void arch_atomic_inc(atomic_t *v)
{
asm volatile(LOCK_PREFIX "incl %0"
- : "+m" (v->counter));
+ : "+m" (v->counter) :: "memory");
}
+#define arch_atomic_inc arch_atomic_inc
/**
- * atomic_dec - decrement atomic variable
+ * arch_atomic_dec - decrement atomic variable
* @v: pointer of type atomic_t
*
* Atomically decrements @v by 1.
*/
-static inline void atomic_dec(atomic_t *v)
+static __always_inline void arch_atomic_dec(atomic_t *v)
{
asm volatile(LOCK_PREFIX "decl %0"
- : "+m" (v->counter));
+ : "+m" (v->counter) :: "memory");
}
+#define arch_atomic_dec arch_atomic_dec
/**
- * atomic_dec_and_test - decrement and test
+ * arch_atomic_dec_and_test - decrement and test
* @v: pointer of type atomic_t
*
* Atomically decrements @v by 1 and
* returns true if the result is 0, or false for all other
* cases.
*/
-static inline int atomic_dec_and_test(atomic_t *v)
+static __always_inline bool arch_atomic_dec_and_test(atomic_t *v)
{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "decl %0; sete %1"
- : "+m" (v->counter), "=qm" (c)
- : : "memory");
- return c != 0;
+ return GEN_UNARY_RMWcc(LOCK_PREFIX "decl", v->counter, e);
}
+#define arch_atomic_dec_and_test arch_atomic_dec_and_test
/**
- * atomic_inc_and_test - increment and test
+ * arch_atomic_inc_and_test - increment and test
* @v: pointer of type atomic_t
*
* Atomically increments @v by 1
* and returns true if the result is zero, or false for all
* other cases.
*/
-static inline int atomic_inc_and_test(atomic_t *v)
+static __always_inline bool arch_atomic_inc_and_test(atomic_t *v)
{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "incl %0; sete %1"
- : "+m" (v->counter), "=qm" (c)
- : : "memory");
- return c != 0;
+ return GEN_UNARY_RMWcc(LOCK_PREFIX "incl", v->counter, e);
}
+#define arch_atomic_inc_and_test arch_atomic_inc_and_test
/**
- * atomic_add_negative - add and test if negative
+ * arch_atomic_add_negative - add and test if negative
* @i: integer value to add
* @v: pointer of type atomic_t
*
@@ -153,171 +147,126 @@ static inline int atomic_inc_and_test(atomic_t *v)
* if the result is negative, or false when
* result is greater than or equal to zero.
*/
-static inline int atomic_add_negative(int i, atomic_t *v)
+static __always_inline bool arch_atomic_add_negative(int i, atomic_t *v)
{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1"
- : "+m" (v->counter), "=qm" (c)
- : "ir" (i) : "memory");
- return c;
+ return GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, s, "er", i);
}
+#define arch_atomic_add_negative arch_atomic_add_negative
/**
- * atomic_add_return - add integer and return
+ * arch_atomic_add_return - add integer and return
* @i: integer value to add
* @v: pointer of type atomic_t
*
* Atomically adds @i to @v and returns @i + @v
*/
-static inline int atomic_add_return(int i, atomic_t *v)
+static __always_inline int arch_atomic_add_return(int i, atomic_t *v)
{
- int __i;
-#ifdef CONFIG_M386
- unsigned long flags;
- if (unlikely(boot_cpu_data.x86 <= 3))
- goto no_xadd;
-#endif
- /* Modern 486+ processor */
- __i = i;
- asm volatile(LOCK_PREFIX "xaddl %0, %1"
- : "+r" (i), "+m" (v->counter)
- : : "memory");
- return i + __i;
-
-#ifdef CONFIG_M386
-no_xadd: /* Legacy 386 processor */
- raw_local_irq_save(flags);
- __i = atomic_read(v);
- atomic_set(v, i + __i);
- raw_local_irq_restore(flags);
- return i + __i;
-#endif
+ return i + xadd(&v->counter, i);
}
+#define arch_atomic_add_return arch_atomic_add_return
/**
- * atomic_sub_return - subtract integer and return
+ * arch_atomic_sub_return - subtract integer and return
* @v: pointer of type atomic_t
* @i: integer value to subtract
*
* Atomically subtracts @i from @v and returns @v - @i
*/
-static inline int atomic_sub_return(int i, atomic_t *v)
+static __always_inline int arch_atomic_sub_return(int i, atomic_t *v)
{
- return atomic_add_return(-i, v);
+ return arch_atomic_add_return(-i, v);
}
+#define arch_atomic_sub_return arch_atomic_sub_return
-#define atomic_inc_return(v) (atomic_add_return(1, v))
-#define atomic_dec_return(v) (atomic_sub_return(1, v))
+static __always_inline int arch_atomic_fetch_add(int i, atomic_t *v)
+{
+ return xadd(&v->counter, i);
+}
+#define arch_atomic_fetch_add arch_atomic_fetch_add
-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
+static __always_inline int arch_atomic_fetch_sub(int i, atomic_t *v)
{
- return cmpxchg(&v->counter, old, new);
+ return xadd(&v->counter, -i);
}
+#define arch_atomic_fetch_sub arch_atomic_fetch_sub
-static inline int atomic_xchg(atomic_t *v, int new)
+static __always_inline int arch_atomic_cmpxchg(atomic_t *v, int old, int new)
{
- return xchg(&v->counter, new);
+ return arch_cmpxchg(&v->counter, old, new);
}
+#define arch_atomic_cmpxchg arch_atomic_cmpxchg
-/**
- * atomic_add_unless - add unless the number is already a given value
- * @v: pointer of type atomic_t
- * @a: the amount to add to v...
- * @u: ...unless v is equal to u.
- *
- * Atomically adds @a to @v, so long as @v was not already @u.
- * Returns non-zero if @v was not @u, and zero otherwise.
- */
-static inline int atomic_add_unless(atomic_t *v, int a, int u)
+static __always_inline bool arch_atomic_try_cmpxchg(atomic_t *v, int *old, int new)
{
- int c, old;
- c = atomic_read(v);
- for (;;) {
- if (unlikely(c == (u)))
- break;
- old = atomic_cmpxchg((v), c, c + (a));
- if (likely(old == c))
- break;
- c = old;
- }
- return c != (u);
+ return arch_try_cmpxchg(&v->counter, old, new);
}
+#define arch_atomic_try_cmpxchg arch_atomic_try_cmpxchg
-#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
+static __always_inline int arch_atomic_xchg(atomic_t *v, int new)
+{
+ return arch_xchg(&v->counter, new);
+}
+#define arch_atomic_xchg arch_atomic_xchg
-/*
- * atomic_dec_if_positive - decrement by 1 if old value positive
- * @v: pointer of type atomic_t
- *
- * The function returns the old value of *v minus 1, even if
- * the atomic variable, v, was not decremented.
- */
-static inline int atomic_dec_if_positive(atomic_t *v)
+static __always_inline void arch_atomic_and(int i, atomic_t *v)
{
- int c, old, dec;
- c = atomic_read(v);
- for (;;) {
- dec = c - 1;
- if (unlikely(dec < 0))
- break;
- old = atomic_cmpxchg((v), c, dec);
- if (likely(old == c))
- break;
- c = old;
- }
- return dec;
+ asm volatile(LOCK_PREFIX "andl %1,%0"
+ : "+m" (v->counter)
+ : "ir" (i)
+ : "memory");
}
-/**
- * atomic_inc_short - increment of a short integer
- * @v: pointer to type int
- *
- * Atomically adds 1 to @v
- * Returns the new value of @u
- */
-static inline short int atomic_inc_short(short int *v)
+static __always_inline int arch_atomic_fetch_and(int i, atomic_t *v)
{
- asm(LOCK_PREFIX "addw $1, %0" : "+m" (*v));
- return *v;
+ int val = arch_atomic_read(v);
+
+ do { } while (!arch_atomic_try_cmpxchg(v, &val, val & i));
+
+ return val;
}
+#define arch_atomic_fetch_and arch_atomic_fetch_and
-#ifdef CONFIG_X86_64
-/**
- * atomic_or_long - OR of two long integers
- * @v1: pointer to type unsigned long
- * @v2: pointer to type unsigned long
- *
- * Atomically ORs @v1 and @v2
- * Returns the result of the OR
- */
-static inline void atomic_or_long(unsigned long *v1, unsigned long v2)
+static __always_inline void arch_atomic_or(int i, atomic_t *v)
{
- asm(LOCK_PREFIX "orq %1, %0" : "+m" (*v1) : "r" (v2));
+ asm volatile(LOCK_PREFIX "orl %1,%0"
+ : "+m" (v->counter)
+ : "ir" (i)
+ : "memory");
}
-#endif
-/* These are x86-specific, used by some header files */
-#define atomic_clear_mask(mask, addr) \
- asm volatile(LOCK_PREFIX "andl %0,%1" \
- : : "r" (~(mask)), "m" (*(addr)) : "memory")
+static __always_inline int arch_atomic_fetch_or(int i, atomic_t *v)
+{
+ int val = arch_atomic_read(v);
+
+ do { } while (!arch_atomic_try_cmpxchg(v, &val, val | i));
+
+ return val;
+}
+#define arch_atomic_fetch_or arch_atomic_fetch_or
+
+static __always_inline void arch_atomic_xor(int i, atomic_t *v)
+{
+ asm volatile(LOCK_PREFIX "xorl %1,%0"
+ : "+m" (v->counter)
+ : "ir" (i)
+ : "memory");
+}
-#define atomic_set_mask(mask, addr) \
- asm volatile(LOCK_PREFIX "orl %0,%1" \
- : : "r" ((unsigned)(mask)), "m" (*(addr)) \
- : "memory")
+static __always_inline int arch_atomic_fetch_xor(int i, atomic_t *v)
+{
+ int val = arch_atomic_read(v);
-/* Atomic operations are already serializing on x86 */
-#define smp_mb__before_atomic_dec() barrier()
-#define smp_mb__after_atomic_dec() barrier()
-#define smp_mb__before_atomic_inc() barrier()
-#define smp_mb__after_atomic_inc() barrier()
+ do { } while (!arch_atomic_try_cmpxchg(v, &val, val ^ i));
+
+ return val;
+}
+#define arch_atomic_fetch_xor arch_atomic_fetch_xor
#ifdef CONFIG_X86_32
-# include "atomic64_32.h"
+# include <asm/atomic64_32.h>
#else
-# include "atomic64_64.h"
+# include <asm/atomic64_64.h>
#endif
-#include <asm-generic/atomic-long.h>
#endif /* _ASM_X86_ATOMIC_H */
diff --git a/arch/x86/include/asm/atomic64_32.h b/arch/x86/include/asm/atomic64_32.h
index 2a934aa19a43..808b4eece251 100644
--- a/arch/x86/include/asm/atomic64_32.h
+++ b/arch/x86/include/asm/atomic64_32.h
@@ -1,30 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_ATOMIC64_32_H
#define _ASM_X86_ATOMIC64_32_H
#include <linux/compiler.h>
#include <linux/types.h>
-#include <asm/processor.h>
//#include <asm/cmpxchg.h>
/* An 64bit atomic type */
typedef struct {
- u64 __aligned(8) counter;
+ s64 __aligned(8) counter;
} atomic64_t;
#define ATOMIC64_INIT(val) { (val) }
+#define __ATOMIC64_DECL(sym) void atomic64_##sym(atomic64_t *, ...)
+#ifndef ATOMIC64_EXPORT
+#define ATOMIC64_DECL_ONE __ATOMIC64_DECL
+#else
+#define ATOMIC64_DECL_ONE(sym) __ATOMIC64_DECL(sym); \
+ ATOMIC64_EXPORT(atomic64_##sym)
+#endif
+
#ifdef CONFIG_X86_CMPXCHG64
-#define ATOMIC64_ALTERNATIVE_(f, g) "call atomic64_" #g "_cx8"
+#define __alternative_atomic64(f, g, out, in...) \
+ asm volatile("call %P[func]" \
+ : out : [func] "i" (atomic64_##g##_cx8), ## in)
+
+#define ATOMIC64_DECL(sym) ATOMIC64_DECL_ONE(sym##_cx8)
#else
-#define ATOMIC64_ALTERNATIVE_(f, g) ALTERNATIVE("call atomic64_" #f "_386", "call atomic64_" #g "_cx8", X86_FEATURE_CX8)
+#define __alternative_atomic64(f, g, out, in...) \
+ alternative_call(atomic64_##f##_386, atomic64_##g##_cx8, \
+ X86_FEATURE_CX8, ASM_OUTPUT2(out), ## in)
+
+#define ATOMIC64_DECL(sym) ATOMIC64_DECL_ONE(sym##_cx8); \
+ ATOMIC64_DECL_ONE(sym##_386)
+
+ATOMIC64_DECL_ONE(add_386);
+ATOMIC64_DECL_ONE(sub_386);
+ATOMIC64_DECL_ONE(inc_386);
+ATOMIC64_DECL_ONE(dec_386);
#endif
-#define ATOMIC64_ALTERNATIVE(f) ATOMIC64_ALTERNATIVE_(f, f)
+#define alternative_atomic64(f, out, in...) \
+ __alternative_atomic64(f, f, ASM_OUTPUT2(out), ## in)
+
+ATOMIC64_DECL(read);
+ATOMIC64_DECL(set);
+ATOMIC64_DECL(xchg);
+ATOMIC64_DECL(add_return);
+ATOMIC64_DECL(sub_return);
+ATOMIC64_DECL(inc_return);
+ATOMIC64_DECL(dec_return);
+ATOMIC64_DECL(dec_if_positive);
+ATOMIC64_DECL(inc_not_zero);
+ATOMIC64_DECL(add_unless);
+
+#undef ATOMIC64_DECL
+#undef ATOMIC64_DECL_ONE
+#undef __ATOMIC64_DECL
+#undef ATOMIC64_EXPORT
/**
- * atomic64_cmpxchg - cmpxchg atomic64 variable
- * @p: pointer to type atomic64_t
+ * arch_atomic64_cmpxchg - cmpxchg atomic64 variable
+ * @v: pointer to type atomic64_t
* @o: expected value
* @n: new value
*
@@ -32,273 +71,272 @@ typedef struct {
* the old value.
*/
-static inline long long atomic64_cmpxchg(atomic64_t *v, long long o, long long n)
+static __always_inline s64 arch_atomic64_cmpxchg(atomic64_t *v, s64 o, s64 n)
{
- return cmpxchg64(&v->counter, o, n);
+ return arch_cmpxchg64(&v->counter, o, n);
}
+#define arch_atomic64_cmpxchg arch_atomic64_cmpxchg
/**
- * atomic64_xchg - xchg atomic64 variable
+ * arch_atomic64_xchg - xchg atomic64 variable
* @v: pointer to type atomic64_t
* @n: value to assign
*
* Atomically xchgs the value of @v to @n and returns
* the old value.
*/
-static inline long long atomic64_xchg(atomic64_t *v, long long n)
+static __always_inline s64 arch_atomic64_xchg(atomic64_t *v, s64 n)
{
- long long o;
+ s64 o;
unsigned high = (unsigned)(n >> 32);
unsigned low = (unsigned)n;
- asm volatile(ATOMIC64_ALTERNATIVE(xchg)
- : "=A" (o), "+b" (low), "+c" (high)
- : "S" (v)
- : "memory"
- );
+ alternative_atomic64(xchg, "=&A" (o),
+ "S" (v), "b" (low), "c" (high)
+ : "memory");
return o;
}
+#define arch_atomic64_xchg arch_atomic64_xchg
/**
- * atomic64_set - set atomic64 variable
+ * arch_atomic64_set - set atomic64 variable
* @v: pointer to type atomic64_t
- * @n: value to assign
+ * @i: value to assign
*
* Atomically sets the value of @v to @n.
*/
-static inline void atomic64_set(atomic64_t *v, long long i)
+static __always_inline void arch_atomic64_set(atomic64_t *v, s64 i)
{
unsigned high = (unsigned)(i >> 32);
unsigned low = (unsigned)i;
- asm volatile(ATOMIC64_ALTERNATIVE(set)
- : "+b" (low), "+c" (high)
- : "S" (v)
- : "eax", "edx", "memory"
- );
+ alternative_atomic64(set, /* no output */,
+ "S" (v), "b" (low), "c" (high)
+ : "eax", "edx", "memory");
}
/**
- * atomic64_read - read atomic64 variable
+ * arch_atomic64_read - read atomic64 variable
* @v: pointer to type atomic64_t
*
* Atomically reads the value of @v and returns it.
*/
-static inline long long atomic64_read(atomic64_t *v)
+static __always_inline s64 arch_atomic64_read(const atomic64_t *v)
{
- long long r;
- asm volatile(ATOMIC64_ALTERNATIVE(read)
- : "=A" (r), "+c" (v)
- : : "memory"
- );
+ s64 r;
+ alternative_atomic64(read, "=&A" (r), "c" (v) : "memory");
return r;
- }
+}
/**
- * atomic64_add_return - add and return
+ * arch_atomic64_add_return - add and return
* @i: integer value to add
* @v: pointer to type atomic64_t
*
* Atomically adds @i to @v and returns @i + *@v
*/
-static inline long long atomic64_add_return(long long i, atomic64_t *v)
+static __always_inline s64 arch_atomic64_add_return(s64 i, atomic64_t *v)
{
- asm volatile(ATOMIC64_ALTERNATIVE(add_return)
- : "+A" (i), "+c" (v)
- : : "memory"
- );
+ alternative_atomic64(add_return,
+ ASM_OUTPUT2("+A" (i), "+c" (v)),
+ ASM_NO_INPUT_CLOBBER("memory"));
return i;
}
+#define arch_atomic64_add_return arch_atomic64_add_return
/*
* Other variants with different arithmetic operators:
*/
-static inline long long atomic64_sub_return(long long i, atomic64_t *v)
+static __always_inline s64 arch_atomic64_sub_return(s64 i, atomic64_t *v)
{
- asm volatile(ATOMIC64_ALTERNATIVE(sub_return)
- : "+A" (i), "+c" (v)
- : : "memory"
- );
+ alternative_atomic64(sub_return,
+ ASM_OUTPUT2("+A" (i), "+c" (v)),
+ ASM_NO_INPUT_CLOBBER("memory"));
return i;
}
+#define arch_atomic64_sub_return arch_atomic64_sub_return
-static inline long long atomic64_inc_return(atomic64_t *v)
+static __always_inline s64 arch_atomic64_inc_return(atomic64_t *v)
{
- long long a;
- asm volatile(ATOMIC64_ALTERNATIVE(inc_return)
- : "=A" (a)
- : "S" (v)
- : "memory", "ecx"
- );
+ s64 a;
+ alternative_atomic64(inc_return, "=&A" (a),
+ "S" (v) : "memory", "ecx");
return a;
}
+#define arch_atomic64_inc_return arch_atomic64_inc_return
-static inline long long atomic64_dec_return(atomic64_t *v)
+static __always_inline s64 arch_atomic64_dec_return(atomic64_t *v)
{
- long long a;
- asm volatile(ATOMIC64_ALTERNATIVE(dec_return)
- : "=A" (a)
- : "S" (v)
- : "memory", "ecx"
- );
+ s64 a;
+ alternative_atomic64(dec_return, "=&A" (a),
+ "S" (v) : "memory", "ecx");
return a;
}
+#define arch_atomic64_dec_return arch_atomic64_dec_return
/**
- * atomic64_add - add integer to atomic64 variable
+ * arch_atomic64_add - add integer to atomic64 variable
* @i: integer value to add
* @v: pointer to type atomic64_t
*
* Atomically adds @i to @v.
*/
-static inline long long atomic64_add(long long i, atomic64_t *v)
+static __always_inline s64 arch_atomic64_add(s64 i, atomic64_t *v)
{
- asm volatile(ATOMIC64_ALTERNATIVE_(add, add_return)
- : "+A" (i), "+c" (v)
- : : "memory"
- );
+ __alternative_atomic64(add, add_return,
+ ASM_OUTPUT2("+A" (i), "+c" (v)),
+ ASM_NO_INPUT_CLOBBER("memory"));
return i;
}
/**
- * atomic64_sub - subtract the atomic64 variable
+ * arch_atomic64_sub - subtract the atomic64 variable
* @i: integer value to subtract
* @v: pointer to type atomic64_t
*
* Atomically subtracts @i from @v.
*/
-static inline long long atomic64_sub(long long i, atomic64_t *v)
+static __always_inline s64 arch_atomic64_sub(s64 i, atomic64_t *v)
{
- asm volatile(ATOMIC64_ALTERNATIVE_(sub, sub_return)
- : "+A" (i), "+c" (v)
- : : "memory"
- );
+ __alternative_atomic64(sub, sub_return,
+ ASM_OUTPUT2("+A" (i), "+c" (v)),
+ ASM_NO_INPUT_CLOBBER("memory"));
return i;
}
/**
- * atomic64_sub_and_test - subtract value from variable and test result
- * @i: integer value to subtract
+ * arch_atomic64_inc - increment atomic64 variable
* @v: pointer to type atomic64_t
- *
- * Atomically subtracts @i from @v and returns
- * true if the result is zero, or false for all
- * other cases.
+ *
+ * Atomically increments @v by 1.
*/
-static inline int atomic64_sub_and_test(long long i, atomic64_t *v)
+static __always_inline void arch_atomic64_inc(atomic64_t *v)
{
- return atomic64_sub_return(i, v) == 0;
+ __alternative_atomic64(inc, inc_return, /* no output */,
+ "S" (v) : "memory", "eax", "ecx", "edx");
}
+#define arch_atomic64_inc arch_atomic64_inc
/**
- * atomic64_inc - increment atomic64 variable
+ * arch_atomic64_dec - decrement atomic64 variable
* @v: pointer to type atomic64_t
*
- * Atomically increments @v by 1.
+ * Atomically decrements @v by 1.
*/
-static inline void atomic64_inc(atomic64_t *v)
+static __always_inline void arch_atomic64_dec(atomic64_t *v)
{
- asm volatile(ATOMIC64_ALTERNATIVE_(inc, inc_return)
- : : "S" (v)
- : "memory", "eax", "ecx", "edx"
- );
+ __alternative_atomic64(dec, dec_return, /* no output */,
+ "S" (v) : "memory", "eax", "ecx", "edx");
}
+#define arch_atomic64_dec arch_atomic64_dec
/**
- * atomic64_dec - decrement atomic64 variable
- * @ptr: pointer to type atomic64_t
+ * arch_atomic64_add_unless - add unless the number is a given value
+ * @v: pointer of type atomic64_t
+ * @a: the amount to add to v...
+ * @u: ...unless v is equal to u.
*
- * Atomically decrements @ptr by 1.
+ * Atomically adds @a to @v, so long as it was not @u.
+ * Returns non-zero if the add was done, zero otherwise.
*/
-static inline void atomic64_dec(atomic64_t *v)
+static __always_inline int arch_atomic64_add_unless(atomic64_t *v, s64 a, s64 u)
{
- asm volatile(ATOMIC64_ALTERNATIVE_(dec, dec_return)
- : : "S" (v)
- : "memory", "eax", "ecx", "edx"
- );
+ unsigned low = (unsigned)u;
+ unsigned high = (unsigned)(u >> 32);
+ alternative_atomic64(add_unless,
+ ASM_OUTPUT2("+A" (a), "+c" (low), "+D" (high)),
+ "S" (v) : "memory");
+ return (int)a;
}
+#define arch_atomic64_add_unless arch_atomic64_add_unless
-/**
- * atomic64_dec_and_test - decrement and test
- * @v: pointer to type atomic64_t
- *
- * Atomically decrements @v by 1 and
- * returns true if the result is 0, or false for all other
- * cases.
- */
-static inline int atomic64_dec_and_test(atomic64_t *v)
+static __always_inline int arch_atomic64_inc_not_zero(atomic64_t *v)
{
- return atomic64_dec_return(v) == 0;
+ int r;
+ alternative_atomic64(inc_not_zero, "=&a" (r),
+ "S" (v) : "ecx", "edx", "memory");
+ return r;
}
+#define arch_atomic64_inc_not_zero arch_atomic64_inc_not_zero
-/**
- * atomic64_inc_and_test - increment and test
- * @v: pointer to type atomic64_t
- *
- * Atomically increments @v by 1
- * and returns true if the result is zero, or false for all
- * other cases.
- */
-static inline int atomic64_inc_and_test(atomic64_t *v)
+static __always_inline s64 arch_atomic64_dec_if_positive(atomic64_t *v)
{
- return atomic64_inc_return(v) == 0;
+ s64 r;
+ alternative_atomic64(dec_if_positive, "=&A" (r),
+ "S" (v) : "ecx", "memory");
+ return r;
}
+#define arch_atomic64_dec_if_positive arch_atomic64_dec_if_positive
-/**
- * atomic64_add_negative - add and test if negative
- * @i: integer value to add
- * @v: pointer to type atomic64_t
- *
- * Atomically adds @i to @v and returns true
- * if the result is negative, or false when
- * result is greater than or equal to zero.
- */
-static inline int atomic64_add_negative(long long i, atomic64_t *v)
+#undef alternative_atomic64
+#undef __alternative_atomic64
+
+static __always_inline void arch_atomic64_and(s64 i, atomic64_t *v)
{
- return atomic64_add_return(i, v) < 0;
+ s64 old, c = 0;
+
+ while ((old = arch_atomic64_cmpxchg(v, c, c & i)) != c)
+ c = old;
}
-/**
- * atomic64_add_unless - add unless the number is a given value
- * @v: pointer of type atomic64_t
- * @a: the amount to add to v...
- * @u: ...unless v is equal to u.
- *
- * Atomically adds @a to @v, so long as it was not @u.
- * Returns non-zero if @v was not @u, and zero otherwise.
- */
-static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
+static __always_inline s64 arch_atomic64_fetch_and(s64 i, atomic64_t *v)
{
- unsigned low = (unsigned)u;
- unsigned high = (unsigned)(u >> 32);
- asm volatile(ATOMIC64_ALTERNATIVE(add_unless) "\n\t"
- : "+A" (a), "+c" (v), "+S" (low), "+D" (high)
- : : "memory");
- return (int)a;
+ s64 old, c = 0;
+
+ while ((old = arch_atomic64_cmpxchg(v, c, c & i)) != c)
+ c = old;
+
+ return old;
}
+#define arch_atomic64_fetch_and arch_atomic64_fetch_and
+static __always_inline void arch_atomic64_or(s64 i, atomic64_t *v)
+{
+ s64 old, c = 0;
-static inline int atomic64_inc_not_zero(atomic64_t *v)
+ while ((old = arch_atomic64_cmpxchg(v, c, c | i)) != c)
+ c = old;
+}
+
+static __always_inline s64 arch_atomic64_fetch_or(s64 i, atomic64_t *v)
{
- int r;
- asm volatile(ATOMIC64_ALTERNATIVE(inc_not_zero)
- : "=a" (r)
- : "S" (v)
- : "ecx", "edx", "memory"
- );
- return r;
+ s64 old, c = 0;
+
+ while ((old = arch_atomic64_cmpxchg(v, c, c | i)) != c)
+ c = old;
+
+ return old;
}
+#define arch_atomic64_fetch_or arch_atomic64_fetch_or
-static inline long long atomic64_dec_if_positive(atomic64_t *v)
+static __always_inline void arch_atomic64_xor(s64 i, atomic64_t *v)
{
- long long r;
- asm volatile(ATOMIC64_ALTERNATIVE(dec_if_positive)
- : "=A" (r)
- : "S" (v)
- : "ecx", "memory"
- );
- return r;
+ s64 old, c = 0;
+
+ while ((old = arch_atomic64_cmpxchg(v, c, c ^ i)) != c)
+ c = old;
+}
+
+static __always_inline s64 arch_atomic64_fetch_xor(s64 i, atomic64_t *v)
+{
+ s64 old, c = 0;
+
+ while ((old = arch_atomic64_cmpxchg(v, c, c ^ i)) != c)
+ c = old;
+
+ return old;
+}
+#define arch_atomic64_fetch_xor arch_atomic64_fetch_xor
+
+static __always_inline s64 arch_atomic64_fetch_add(s64 i, atomic64_t *v)
+{
+ s64 old, c = 0;
+
+ while ((old = arch_atomic64_cmpxchg(v, c, c + i)) != c)
+ c = old;
+
+ return old;
}
+#define arch_atomic64_fetch_add arch_atomic64_fetch_add
-#undef ATOMIC64_ALTERNATIVE
-#undef ATOMIC64_ALTERNATIVE_
+#define arch_atomic64_fetch_sub(i, v) arch_atomic64_fetch_add(-(i), (v))
#endif /* _ASM_X86_ATOMIC64_32_H */
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 49fd1ea22951..c496595bf601 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_ATOMIC64_64_H
#define _ASM_X86_ATOMIC64_64_H
@@ -10,59 +11,59 @@
#define ATOMIC64_INIT(i) { (i) }
/**
- * atomic64_read - read atomic64 variable
+ * arch_atomic64_read - read atomic64 variable
* @v: pointer of type atomic64_t
*
* Atomically reads the value of @v.
* Doesn't imply a read memory barrier.
*/
-static inline long atomic64_read(const atomic64_t *v)
+static __always_inline s64 arch_atomic64_read(const atomic64_t *v)
{
- return (*(volatile long *)&(v)->counter);
+ return __READ_ONCE((v)->counter);
}
/**
- * atomic64_set - set atomic64 variable
+ * arch_atomic64_set - set atomic64 variable
* @v: pointer to type atomic64_t
* @i: required value
*
* Atomically sets the value of @v to @i.
*/
-static inline void atomic64_set(atomic64_t *v, long i)
+static __always_inline void arch_atomic64_set(atomic64_t *v, s64 i)
{
- v->counter = i;
+ __WRITE_ONCE(v->counter, i);
}
/**
- * atomic64_add - add integer to atomic64 variable
+ * arch_atomic64_add - add integer to atomic64 variable
* @i: integer value to add
* @v: pointer to type atomic64_t
*
* Atomically adds @i to @v.
*/
-static inline void atomic64_add(long i, atomic64_t *v)
+static __always_inline void arch_atomic64_add(s64 i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "addq %1,%0"
: "=m" (v->counter)
- : "er" (i), "m" (v->counter));
+ : "er" (i), "m" (v->counter) : "memory");
}
/**
- * atomic64_sub - subtract the atomic64 variable
+ * arch_atomic64_sub - subtract the atomic64 variable
* @i: integer value to subtract
* @v: pointer to type atomic64_t
*
* Atomically subtracts @i from @v.
*/
-static inline void atomic64_sub(long i, atomic64_t *v)
+static __always_inline void arch_atomic64_sub(s64 i, atomic64_t *v)
{
asm volatile(LOCK_PREFIX "subq %1,%0"
: "=m" (v->counter)
- : "er" (i), "m" (v->counter));
+ : "er" (i), "m" (v->counter) : "memory");
}
/**
- * atomic64_sub_and_test - subtract value from variable and test result
+ * arch_atomic64_sub_and_test - subtract value from variable and test result
* @i: integer value to subtract
* @v: pointer to type atomic64_t
*
@@ -70,80 +71,70 @@ static inline void atomic64_sub(long i, atomic64_t *v)
* true if the result is zero, or false for all
* other cases.
*/
-static inline int atomic64_sub_and_test(long i, atomic64_t *v)
+static __always_inline bool arch_atomic64_sub_and_test(s64 i, atomic64_t *v)
{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "subq %2,%0; sete %1"
- : "=m" (v->counter), "=qm" (c)
- : "er" (i), "m" (v->counter) : "memory");
- return c;
+ return GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, e, "er", i);
}
+#define arch_atomic64_sub_and_test arch_atomic64_sub_and_test
/**
- * atomic64_inc - increment atomic64 variable
+ * arch_atomic64_inc - increment atomic64 variable
* @v: pointer to type atomic64_t
*
* Atomically increments @v by 1.
*/
-static inline void atomic64_inc(atomic64_t *v)
+static __always_inline void arch_atomic64_inc(atomic64_t *v)
{
asm volatile(LOCK_PREFIX "incq %0"
: "=m" (v->counter)
- : "m" (v->counter));
+ : "m" (v->counter) : "memory");
}
+#define arch_atomic64_inc arch_atomic64_inc
/**
- * atomic64_dec - decrement atomic64 variable
+ * arch_atomic64_dec - decrement atomic64 variable
* @v: pointer to type atomic64_t
*
* Atomically decrements @v by 1.
*/
-static inline void atomic64_dec(atomic64_t *v)
+static __always_inline void arch_atomic64_dec(atomic64_t *v)
{
asm volatile(LOCK_PREFIX "decq %0"
: "=m" (v->counter)
- : "m" (v->counter));
+ : "m" (v->counter) : "memory");
}
+#define arch_atomic64_dec arch_atomic64_dec
/**
- * atomic64_dec_and_test - decrement and test
+ * arch_atomic64_dec_and_test - decrement and test
* @v: pointer to type atomic64_t
*
* Atomically decrements @v by 1 and
* returns true if the result is 0, or false for all other
* cases.
*/
-static inline int atomic64_dec_and_test(atomic64_t *v)
+static __always_inline bool arch_atomic64_dec_and_test(atomic64_t *v)
{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "decq %0; sete %1"
- : "=m" (v->counter), "=qm" (c)
- : "m" (v->counter) : "memory");
- return c != 0;
+ return GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, e);
}
+#define arch_atomic64_dec_and_test arch_atomic64_dec_and_test
/**
- * atomic64_inc_and_test - increment and test
+ * arch_atomic64_inc_and_test - increment and test
* @v: pointer to type atomic64_t
*
* Atomically increments @v by 1
* and returns true if the result is zero, or false for all
* other cases.
*/
-static inline int atomic64_inc_and_test(atomic64_t *v)
+static __always_inline bool arch_atomic64_inc_and_test(atomic64_t *v)
{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "incq %0; sete %1"
- : "=m" (v->counter), "=qm" (c)
- : "m" (v->counter) : "memory");
- return c != 0;
+ return GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, e);
}
+#define arch_atomic64_inc_and_test arch_atomic64_inc_and_test
/**
- * atomic64_add_negative - add and test if negative
+ * arch_atomic64_add_negative - add and test if negative
* @i: integer value to add
* @v: pointer to type atomic64_t
*
@@ -151,97 +142,113 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
* if the result is negative, or false when
* result is greater than or equal to zero.
*/
-static inline int atomic64_add_negative(long i, atomic64_t *v)
+static __always_inline bool arch_atomic64_add_negative(s64 i, atomic64_t *v)
{
- unsigned char c;
-
- asm volatile(LOCK_PREFIX "addq %2,%0; sets %1"
- : "=m" (v->counter), "=qm" (c)
- : "er" (i), "m" (v->counter) : "memory");
- return c;
+ return GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, s, "er", i);
}
+#define arch_atomic64_add_negative arch_atomic64_add_negative
/**
- * atomic64_add_return - add and return
+ * arch_atomic64_add_return - add and return
* @i: integer value to add
* @v: pointer to type atomic64_t
*
* Atomically adds @i to @v and returns @i + @v
*/
-static inline long atomic64_add_return(long i, atomic64_t *v)
+static __always_inline s64 arch_atomic64_add_return(s64 i, atomic64_t *v)
{
- long __i = i;
- asm volatile(LOCK_PREFIX "xaddq %0, %1;"
- : "+r" (i), "+m" (v->counter)
- : : "memory");
- return i + __i;
+ return i + xadd(&v->counter, i);
}
+#define arch_atomic64_add_return arch_atomic64_add_return
-static inline long atomic64_sub_return(long i, atomic64_t *v)
+static __always_inline s64 arch_atomic64_sub_return(s64 i, atomic64_t *v)
{
- return atomic64_add_return(-i, v);
+ return arch_atomic64_add_return(-i, v);
}
+#define arch_atomic64_sub_return arch_atomic64_sub_return
-#define atomic64_inc_return(v) (atomic64_add_return(1, (v)))
-#define atomic64_dec_return(v) (atomic64_sub_return(1, (v)))
+static __always_inline s64 arch_atomic64_fetch_add(s64 i, atomic64_t *v)
+{
+ return xadd(&v->counter, i);
+}
+#define arch_atomic64_fetch_add arch_atomic64_fetch_add
-static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new)
+static __always_inline s64 arch_atomic64_fetch_sub(s64 i, atomic64_t *v)
{
- return cmpxchg(&v->counter, old, new);
+ return xadd(&v->counter, -i);
}
+#define arch_atomic64_fetch_sub arch_atomic64_fetch_sub
-static inline long atomic64_xchg(atomic64_t *v, long new)
+static __always_inline s64 arch_atomic64_cmpxchg(atomic64_t *v, s64 old, s64 new)
{
- return xchg(&v->counter, new);
+ return arch_cmpxchg(&v->counter, old, new);
}
+#define arch_atomic64_cmpxchg arch_atomic64_cmpxchg
-/**
- * atomic64_add_unless - add unless the number is a given value
- * @v: pointer of type atomic64_t
- * @a: the amount to add to v...
- * @u: ...unless v is equal to u.
- *
- * Atomically adds @a to @v, so long as it was not @u.
- * Returns non-zero if @v was not @u, and zero otherwise.
- */
-static inline int atomic64_add_unless(atomic64_t *v, long a, long u)
-{
- long c, old;
- c = atomic64_read(v);
- for (;;) {
- if (unlikely(c == (u)))
- break;
- old = atomic64_cmpxchg((v), c, c + (a));
- if (likely(old == c))
- break;
- c = old;
- }
- return c != (u);
-}
-
-#define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
-
-/*
- * atomic64_dec_if_positive - decrement by 1 if old value positive
- * @v: pointer of type atomic_t
- *
- * The function returns the old value of *v minus 1, even if
- * the atomic variable, v, was not decremented.
- */
-static inline long atomic64_dec_if_positive(atomic64_t *v)
-{
- long c, old, dec;
- c = atomic64_read(v);
- for (;;) {
- dec = c - 1;
- if (unlikely(dec < 0))
- break;
- old = atomic64_cmpxchg((v), c, dec);
- if (likely(old == c))
- break;
- c = old;
- }
- return dec;
+static __always_inline bool arch_atomic64_try_cmpxchg(atomic64_t *v, s64 *old, s64 new)
+{
+ return arch_try_cmpxchg(&v->counter, old, new);
+}
+#define arch_atomic64_try_cmpxchg arch_atomic64_try_cmpxchg
+
+static __always_inline s64 arch_atomic64_xchg(atomic64_t *v, s64 new)
+{
+ return arch_xchg(&v->counter, new);
+}
+#define arch_atomic64_xchg arch_atomic64_xchg
+
+static __always_inline void arch_atomic64_and(s64 i, atomic64_t *v)
+{
+ asm volatile(LOCK_PREFIX "andq %1,%0"
+ : "+m" (v->counter)
+ : "er" (i)
+ : "memory");
+}
+
+static __always_inline s64 arch_atomic64_fetch_and(s64 i, atomic64_t *v)
+{
+ s64 val = arch_atomic64_read(v);
+
+ do {
+ } while (!arch_atomic64_try_cmpxchg(v, &val, val & i));
+ return val;
+}
+#define arch_atomic64_fetch_and arch_atomic64_fetch_and
+
+static __always_inline void arch_atomic64_or(s64 i, atomic64_t *v)
+{
+ asm volatile(LOCK_PREFIX "orq %1,%0"
+ : "+m" (v->counter)
+ : "er" (i)
+ : "memory");
+}
+
+static __always_inline s64 arch_atomic64_fetch_or(s64 i, atomic64_t *v)
+{
+ s64 val = arch_atomic64_read(v);
+
+ do {
+ } while (!arch_atomic64_try_cmpxchg(v, &val, val | i));
+ return val;
+}
+#define arch_atomic64_fetch_or arch_atomic64_fetch_or
+
+static __always_inline void arch_atomic64_xor(s64 i, atomic64_t *v)
+{
+ asm volatile(LOCK_PREFIX "xorq %1,%0"
+ : "+m" (v->counter)
+ : "er" (i)
+ : "memory");
+}
+
+static __always_inline s64 arch_atomic64_fetch_xor(s64 i, atomic64_t *v)
+{
+ s64 val = arch_atomic64_read(v);
+
+ do {
+ } while (!arch_atomic64_try_cmpxchg(v, &val, val ^ i));
+ return val;
}
+#define arch_atomic64_fetch_xor arch_atomic64_fetch_xor
#endif /* _ASM_X86_ATOMIC64_64_H */
diff --git a/arch/x86/include/asm/audit.h b/arch/x86/include/asm/audit.h
new file mode 100644
index 000000000000..36aec57ea7a3
--- /dev/null
+++ b/arch/x86/include/asm/audit.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_AUDIT_H
+#define _ASM_X86_AUDIT_H
+
+int ia32_classify_syscall(unsigned int syscall);
+
+#endif /* _ASM_X86_AUDIT_H */
diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h
new file mode 100644
index 000000000000..35389b2af88e
--- /dev/null
+++ b/arch/x86/include/asm/barrier.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_BARRIER_H
+#define _ASM_X86_BARRIER_H
+
+#include <asm/alternative.h>
+#include <asm/nops.h>
+
+/*
+ * Force strict CPU ordering.
+ * And yes, this might be required on UP too when we're talking
+ * to devices.
+ */
+
+#ifdef CONFIG_X86_32
+#define mb() asm volatile(ALTERNATIVE("lock; addl $0,-4(%%esp)", "mfence", \
+ X86_FEATURE_XMM2) ::: "memory", "cc")
+#define rmb() asm volatile(ALTERNATIVE("lock; addl $0,-4(%%esp)", "lfence", \
+ X86_FEATURE_XMM2) ::: "memory", "cc")
+#define wmb() asm volatile(ALTERNATIVE("lock; addl $0,-4(%%esp)", "sfence", \
+ X86_FEATURE_XMM2) ::: "memory", "cc")
+#else
+#define __mb() asm volatile("mfence":::"memory")
+#define __rmb() asm volatile("lfence":::"memory")
+#define __wmb() asm volatile("sfence" ::: "memory")
+#endif
+
+/**
+ * array_index_mask_nospec() - generate a mask that is ~0UL when the
+ * bounds check succeeds and 0 otherwise
+ * @index: array element index
+ * @size: number of elements in array
+ *
+ * Returns:
+ * 0 - (index < size)
+ */
+static inline unsigned long array_index_mask_nospec(unsigned long index,
+ unsigned long size)
+{
+ unsigned long mask;
+
+ asm volatile ("cmp %1,%2; sbb %0,%0;"
+ :"=r" (mask)
+ :"g"(size),"r" (index)
+ :"cc");
+ return mask;
+}
+
+/* Override the default implementation from linux/nospec.h. */
+#define array_index_mask_nospec array_index_mask_nospec
+
+/* Prevent speculative execution past this barrier. */
+#define barrier_nospec() alternative("", "lfence", X86_FEATURE_LFENCE_RDTSC)
+
+#define __dma_rmb() barrier()
+#define __dma_wmb() barrier()
+
+#define __smp_mb() asm volatile("lock; addl $0,-4(%%" _ASM_SP ")" ::: "memory", "cc")
+
+#define __smp_rmb() dma_rmb()
+#define __smp_wmb() barrier()
+#define __smp_store_mb(var, value) do { (void)xchg(&var, value); } while (0)
+
+#define __smp_store_release(p, v) \
+do { \
+ compiletime_assert_atomic_type(*p); \
+ barrier(); \
+ WRITE_ONCE(*p, v); \
+} while (0)
+
+#define __smp_load_acquire(p) \
+({ \
+ typeof(*p) ___p1 = READ_ONCE(*p); \
+ compiletime_assert_atomic_type(*p); \
+ barrier(); \
+ ___p1; \
+})
+
+/* Atomic operations are already serializing on x86 */
+#define __smp_mb__before_atomic() do { } while (0)
+#define __smp_mb__after_atomic() do { } while (0)
+
+#include <asm-generic/barrier.h>
+
+/*
+ * Make previous memory operations globally visible before
+ * a WRMSR.
+ *
+ * MFENCE makes writes visible, but only affects load/store
+ * instructions. WRMSR is unfortunately not a load/store
+ * instruction and is unaffected by MFENCE. The LFENCE ensures
+ * that the WRMSR is not reordered.
+ *
+ * Most WRMSRs are full serializing instructions themselves and
+ * do not require this barrier. This is only required for the
+ * IA32_TSC_DEADLINE and X2APIC MSRs.
+ */
+static inline void weak_wrmsr_fence(void)
+{
+ asm volatile("mfence; lfence" : : : "memory");
+}
+
+#endif /* _ASM_X86_BARRIER_H */
diff --git a/arch/x86/include/asm/bios_ebda.h b/arch/x86/include/asm/bios_ebda.h
index 3c7521063d3f..4d5a17e2febe 100644
--- a/arch/x86/include/asm/bios_ebda.h
+++ b/arch/x86/include/asm/bios_ebda.h
@@ -1,20 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_BIOS_EBDA_H
#define _ASM_X86_BIOS_EBDA_H
#include <asm/io.h>
/*
- * there is a real-mode segmented pointer pointing to the
- * 4K EBDA area at 0x40E.
+ * Returns physical address of EBDA. Returns 0 if there is no EBDA.
*/
static inline unsigned int get_bios_ebda(void)
{
+ /*
+ * There is a real-mode segmented pointer pointing to the
+ * 4K EBDA area at 0x40E.
+ */
unsigned int address = *(unsigned short *)phys_to_virt(0x40E);
address <<= 4;
return address; /* 0 means none */
}
-void reserve_ebda_region(void);
+void reserve_bios_regions(void);
#ifdef CONFIG_X86_CHECK_BIOS_CORRUPTION
/*
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 69d58131bc8e..2edf68475fec 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_BITOPS_H
#define _ASM_X86_BITOPS_H
@@ -14,6 +15,18 @@
#include <linux/compiler.h>
#include <asm/alternative.h>
+#include <asm/rmwcc.h>
+#include <asm/barrier.h>
+
+#if BITS_PER_LONG == 32
+# define _BITOPS_LONG_SHIFT 5
+#elif BITS_PER_LONG == 64
+# define _BITOPS_LONG_SHIFT 6
+#else
+# error "Unexpected BITS_PER_LONG"
+#endif
+
+#define BIT_64(n) (U64_C(1) << (n))
/*
* These have to be done with inline assembly: that way the bit-setting
@@ -23,320 +36,224 @@
* bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1).
*/
-#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 1)
-/* Technically wrong, but this avoids compilation errors on some gcc
- versions. */
-#define BITOP_ADDR(x) "=m" (*(volatile long *) (x))
-#else
-#define BITOP_ADDR(x) "+m" (*(volatile long *) (x))
-#endif
+#define RLONG_ADDR(x) "m" (*(volatile long *) (x))
+#define WBYTE_ADDR(x) "+m" (*(volatile char *) (x))
-#define ADDR BITOP_ADDR(addr)
+#define ADDR RLONG_ADDR(addr)
/*
* We do the locked ops that don't return the old value as
* a mask operation on a byte.
*/
-#define IS_IMMEDIATE(nr) (__builtin_constant_p(nr))
-#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((void *)(addr) + ((nr)>>3))
+#define CONST_MASK_ADDR(nr, addr) WBYTE_ADDR((void *)(addr) + ((nr)>>3))
#define CONST_MASK(nr) (1 << ((nr) & 7))
-/**
- * set_bit - Atomically set a bit in memory
- * @nr: the bit to set
- * @addr: the address to start counting from
- *
- * This function is atomic and may not be reordered. See __set_bit()
- * if you do not require the atomic guarantees.
- *
- * Note: there are no guarantees that this function will not be reordered
- * on non x86 architectures, so if you are writing portable code,
- * make sure not to rely on its reordering guarantees.
- *
- * Note that @nr may be almost arbitrarily large; this function is not
- * restricted to acting on a single-word quantity.
- */
static __always_inline void
-set_bit(unsigned int nr, volatile unsigned long *addr)
+arch_set_bit(long nr, volatile unsigned long *addr)
{
- if (IS_IMMEDIATE(nr)) {
- asm volatile(LOCK_PREFIX "orb %1,%0"
+ if (__builtin_constant_p(nr)) {
+ asm volatile(LOCK_PREFIX "orb %b1,%0"
: CONST_MASK_ADDR(nr, addr)
- : "iq" ((u8)CONST_MASK(nr))
+ : "iq" (CONST_MASK(nr))
: "memory");
} else {
- asm volatile(LOCK_PREFIX "bts %1,%0"
- : BITOP_ADDR(addr) : "Ir" (nr) : "memory");
+ asm volatile(LOCK_PREFIX __ASM_SIZE(bts) " %1,%0"
+ : : RLONG_ADDR(addr), "Ir" (nr) : "memory");
}
}
-/**
- * __set_bit - Set a bit in memory
- * @nr: the bit to set
- * @addr: the address to start counting from
- *
- * Unlike set_bit(), this function is non-atomic and may be reordered.
- * If it's called on the same region of memory simultaneously, the effect
- * may be that only one operation succeeds.
- */
-static inline void __set_bit(int nr, volatile unsigned long *addr)
+static __always_inline void
+arch___set_bit(unsigned long nr, volatile unsigned long *addr)
{
- asm volatile("bts %1,%0" : ADDR : "Ir" (nr) : "memory");
+ asm volatile(__ASM_SIZE(bts) " %1,%0" : : ADDR, "Ir" (nr) : "memory");
}
-/**
- * clear_bit - Clears a bit in memory
- * @nr: Bit to clear
- * @addr: Address to start counting from
- *
- * clear_bit() is atomic and may not be reordered. However, it does
- * not contain a memory barrier, so if it is used for locking purposes,
- * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit()
- * in order to ensure changes are visible on other processors.
- */
static __always_inline void
-clear_bit(int nr, volatile unsigned long *addr)
+arch_clear_bit(long nr, volatile unsigned long *addr)
{
- if (IS_IMMEDIATE(nr)) {
- asm volatile(LOCK_PREFIX "andb %1,%0"
+ if (__builtin_constant_p(nr)) {
+ asm volatile(LOCK_PREFIX "andb %b1,%0"
: CONST_MASK_ADDR(nr, addr)
- : "iq" ((u8)~CONST_MASK(nr)));
+ : "iq" (~CONST_MASK(nr)));
} else {
- asm volatile(LOCK_PREFIX "btr %1,%0"
- : BITOP_ADDR(addr)
- : "Ir" (nr));
+ asm volatile(LOCK_PREFIX __ASM_SIZE(btr) " %1,%0"
+ : : RLONG_ADDR(addr), "Ir" (nr) : "memory");
}
}
-/*
- * clear_bit_unlock - Clears a bit in memory
- * @nr: Bit to clear
- * @addr: Address to start counting from
- *
- * clear_bit() is atomic and implies release semantics before the memory
- * operation. It can be used for an unlock.
- */
-static inline void clear_bit_unlock(unsigned nr, volatile unsigned long *addr)
+static __always_inline void
+arch_clear_bit_unlock(long nr, volatile unsigned long *addr)
{
barrier();
- clear_bit(nr, addr);
+ arch_clear_bit(nr, addr);
}
-static inline void __clear_bit(int nr, volatile unsigned long *addr)
+static __always_inline void
+arch___clear_bit(unsigned long nr, volatile unsigned long *addr)
{
- asm volatile("btr %1,%0" : ADDR : "Ir" (nr));
+ asm volatile(__ASM_SIZE(btr) " %1,%0" : : ADDR, "Ir" (nr) : "memory");
}
-/*
- * __clear_bit_unlock - Clears a bit in memory
- * @nr: Bit to clear
- * @addr: Address to start counting from
- *
- * __clear_bit() is non-atomic and implies release semantics before the memory
- * operation. It can be used for an unlock if no other CPUs can concurrently
- * modify other bits in the word.
- *
- * No memory barrier is required here, because x86 cannot reorder stores past
- * older loads. Same principle as spin_unlock.
- */
-static inline void __clear_bit_unlock(unsigned nr, volatile unsigned long *addr)
+static __always_inline bool
+arch_clear_bit_unlock_is_negative_byte(long nr, volatile unsigned long *addr)
{
- barrier();
- __clear_bit(nr, addr);
+ bool negative;
+ asm volatile(LOCK_PREFIX "andb %2,%1"
+ CC_SET(s)
+ : CC_OUT(s) (negative), WBYTE_ADDR(addr)
+ : "ir" ((char) ~(1 << nr)) : "memory");
+ return negative;
}
+#define arch_clear_bit_unlock_is_negative_byte \
+ arch_clear_bit_unlock_is_negative_byte
-#define smp_mb__before_clear_bit() barrier()
-#define smp_mb__after_clear_bit() barrier()
+static __always_inline void
+arch___clear_bit_unlock(long nr, volatile unsigned long *addr)
+{
+ arch___clear_bit(nr, addr);
+}
-/**
- * __change_bit - Toggle a bit in memory
- * @nr: the bit to change
- * @addr: the address to start counting from
- *
- * Unlike change_bit(), this function is non-atomic and may be reordered.
- * If it's called on the same region of memory simultaneously, the effect
- * may be that only one operation succeeds.
- */
-static inline void __change_bit(int nr, volatile unsigned long *addr)
+static __always_inline void
+arch___change_bit(unsigned long nr, volatile unsigned long *addr)
{
- asm volatile("btc %1,%0" : ADDR : "Ir" (nr));
+ asm volatile(__ASM_SIZE(btc) " %1,%0" : : ADDR, "Ir" (nr) : "memory");
}
-/**
- * change_bit - Toggle a bit in memory
- * @nr: Bit to change
- * @addr: Address to start counting from
- *
- * change_bit() is atomic and may not be reordered.
- * Note that @nr may be almost arbitrarily large; this function is not
- * restricted to acting on a single-word quantity.
- */
-static inline void change_bit(int nr, volatile unsigned long *addr)
+static __always_inline void
+arch_change_bit(long nr, volatile unsigned long *addr)
{
- if (IS_IMMEDIATE(nr)) {
- asm volatile(LOCK_PREFIX "xorb %1,%0"
+ if (__builtin_constant_p(nr)) {
+ asm volatile(LOCK_PREFIX "xorb %b1,%0"
: CONST_MASK_ADDR(nr, addr)
- : "iq" ((u8)CONST_MASK(nr)));
+ : "iq" (CONST_MASK(nr)));
} else {
- asm volatile(LOCK_PREFIX "btc %1,%0"
- : BITOP_ADDR(addr)
- : "Ir" (nr));
+ asm volatile(LOCK_PREFIX __ASM_SIZE(btc) " %1,%0"
+ : : RLONG_ADDR(addr), "Ir" (nr) : "memory");
}
}
-/**
- * test_and_set_bit - Set a bit and return its old value
- * @nr: Bit to set
- * @addr: Address to count from
- *
- * This operation is atomic and cannot be reordered.
- * It also implies a memory barrier.
- */
-static inline int test_and_set_bit(int nr, volatile unsigned long *addr)
+static __always_inline bool
+arch_test_and_set_bit(long nr, volatile unsigned long *addr)
{
- int oldbit;
+ return GEN_BINARY_RMWcc(LOCK_PREFIX __ASM_SIZE(bts), *addr, c, "Ir", nr);
+}
- asm volatile(LOCK_PREFIX "bts %2,%1\n\t"
- "sbb %0,%0" : "=r" (oldbit), ADDR : "Ir" (nr) : "memory");
+static __always_inline bool
+arch_test_and_set_bit_lock(long nr, volatile unsigned long *addr)
+{
+ return arch_test_and_set_bit(nr, addr);
+}
+
+static __always_inline bool
+arch___test_and_set_bit(unsigned long nr, volatile unsigned long *addr)
+{
+ bool oldbit;
+ asm(__ASM_SIZE(bts) " %2,%1"
+ CC_SET(c)
+ : CC_OUT(c) (oldbit)
+ : ADDR, "Ir" (nr) : "memory");
return oldbit;
}
-/**
- * test_and_set_bit_lock - Set a bit and return its old value for lock
- * @nr: Bit to set
- * @addr: Address to count from
- *
- * This is the same as test_and_set_bit on x86.
- */
-static __always_inline int
-test_and_set_bit_lock(int nr, volatile unsigned long *addr)
+static __always_inline bool
+arch_test_and_clear_bit(long nr, volatile unsigned long *addr)
{
- return test_and_set_bit(nr, addr);
+ return GEN_BINARY_RMWcc(LOCK_PREFIX __ASM_SIZE(btr), *addr, c, "Ir", nr);
}
-/**
- * __test_and_set_bit - Set a bit and return its old value
- * @nr: Bit to set
- * @addr: Address to count from
- *
- * This operation is non-atomic and can be reordered.
- * If two examples of this operation race, one can appear to succeed
- * but actually fail. You must protect multiple accesses with a lock.
+/*
+ * Note: the operation is performed atomically with respect to
+ * the local CPU, but not other CPUs. Portable code should not
+ * rely on this behaviour.
+ * KVM relies on this behaviour on x86 for modifying memory that is also
+ * accessed from a hypervisor on the same CPU if running in a VM: don't change
+ * this without also updating arch/x86/kernel/kvm.c
*/
-static inline int __test_and_set_bit(int nr, volatile unsigned long *addr)
+static __always_inline bool
+arch___test_and_clear_bit(unsigned long nr, volatile unsigned long *addr)
{
- int oldbit;
+ bool oldbit;
- asm("bts %2,%1\n\t"
- "sbb %0,%0"
- : "=r" (oldbit), ADDR
- : "Ir" (nr));
+ asm volatile(__ASM_SIZE(btr) " %2,%1"
+ CC_SET(c)
+ : CC_OUT(c) (oldbit)
+ : ADDR, "Ir" (nr) : "memory");
return oldbit;
}
-/**
- * test_and_clear_bit - Clear a bit and return its old value
- * @nr: Bit to clear
- * @addr: Address to count from
- *
- * This operation is atomic and cannot be reordered.
- * It also implies a memory barrier.
- */
-static inline int test_and_clear_bit(int nr, volatile unsigned long *addr)
+static __always_inline bool
+arch___test_and_change_bit(unsigned long nr, volatile unsigned long *addr)
{
- int oldbit;
+ bool oldbit;
- asm volatile(LOCK_PREFIX "btr %2,%1\n\t"
- "sbb %0,%0"
- : "=r" (oldbit), ADDR : "Ir" (nr) : "memory");
+ asm volatile(__ASM_SIZE(btc) " %2,%1"
+ CC_SET(c)
+ : CC_OUT(c) (oldbit)
+ : ADDR, "Ir" (nr) : "memory");
return oldbit;
}
-/**
- * __test_and_clear_bit - Clear a bit and return its old value
- * @nr: Bit to clear
- * @addr: Address to count from
- *
- * This operation is non-atomic and can be reordered.
- * If two examples of this operation race, one can appear to succeed
- * but actually fail. You must protect multiple accesses with a lock.
- */
-static inline int __test_and_clear_bit(int nr, volatile unsigned long *addr)
+static __always_inline bool
+arch_test_and_change_bit(long nr, volatile unsigned long *addr)
{
- int oldbit;
+ return GEN_BINARY_RMWcc(LOCK_PREFIX __ASM_SIZE(btc), *addr, c, "Ir", nr);
+}
- asm volatile("btr %2,%1\n\t"
- "sbb %0,%0"
- : "=r" (oldbit), ADDR
- : "Ir" (nr));
- return oldbit;
+static __always_inline bool constant_test_bit(long nr, const volatile unsigned long *addr)
+{
+ return ((1UL << (nr & (BITS_PER_LONG-1))) &
+ (addr[nr >> _BITOPS_LONG_SHIFT])) != 0;
}
-/* WARNING: non atomic and it can be reordered! */
-static inline int __test_and_change_bit(int nr, volatile unsigned long *addr)
+static __always_inline bool constant_test_bit_acquire(long nr, const volatile unsigned long *addr)
{
- int oldbit;
+ bool oldbit;
- asm volatile("btc %2,%1\n\t"
- "sbb %0,%0"
- : "=r" (oldbit), ADDR
- : "Ir" (nr) : "memory");
+ asm volatile("testb %2,%1"
+ CC_SET(nz)
+ : CC_OUT(nz) (oldbit)
+ : "m" (((unsigned char *)addr)[nr >> 3]),
+ "i" (1 << (nr & 7))
+ :"memory");
return oldbit;
}
-/**
- * test_and_change_bit - Change a bit and return its old value
- * @nr: Bit to change
- * @addr: Address to count from
- *
- * This operation is atomic and cannot be reordered.
- * It also implies a memory barrier.
- */
-static inline int test_and_change_bit(int nr, volatile unsigned long *addr)
+static __always_inline bool variable_test_bit(long nr, volatile const unsigned long *addr)
{
- int oldbit;
+ bool oldbit;
- asm volatile(LOCK_PREFIX "btc %2,%1\n\t"
- "sbb %0,%0"
- : "=r" (oldbit), ADDR : "Ir" (nr) : "memory");
+ asm volatile(__ASM_SIZE(bt) " %2,%1"
+ CC_SET(c)
+ : CC_OUT(c) (oldbit)
+ : "m" (*(unsigned long *)addr), "Ir" (nr) : "memory");
return oldbit;
}
-static __always_inline int constant_test_bit(unsigned int nr, const volatile unsigned long *addr)
+static __always_inline bool
+arch_test_bit(unsigned long nr, const volatile unsigned long *addr)
{
- return ((1UL << (nr % BITS_PER_LONG)) &
- (addr[nr / BITS_PER_LONG])) != 0;
+ return __builtin_constant_p(nr) ? constant_test_bit(nr, addr) :
+ variable_test_bit(nr, addr);
}
-static inline int variable_test_bit(int nr, volatile const unsigned long *addr)
+static __always_inline bool
+arch_test_bit_acquire(unsigned long nr, const volatile unsigned long *addr)
{
- int oldbit;
-
- asm volatile("bt %2,%1\n\t"
- "sbb %0,%0"
- : "=r" (oldbit)
- : "m" (*(unsigned long *)addr), "Ir" (nr));
-
- return oldbit;
+ return __builtin_constant_p(nr) ? constant_test_bit_acquire(nr, addr) :
+ variable_test_bit(nr, addr);
}
-#if 0 /* Fool kernel-doc since it doesn't do macros yet */
-/**
- * test_bit - Determine whether a bit is set
- * @nr: bit number to test
- * @addr: Address to start counting from
- */
-static int test_bit(int nr, const volatile unsigned long *addr);
-#endif
-
-#define test_bit(nr, addr) \
- (__builtin_constant_p((nr)) \
- ? constant_test_bit((nr), (addr)) \
- : variable_test_bit((nr), (addr)))
+static __always_inline unsigned long variable__ffs(unsigned long word)
+{
+ asm("rep; bsf %1,%0"
+ : "=r" (word)
+ : "rm" (word));
+ return word;
+}
/**
* __ffs - find first set bit in word
@@ -344,11 +261,16 @@ static int test_bit(int nr, const volatile unsigned long *addr);
*
* Undefined if no bit exists, so code should check against 0 first.
*/
-static inline unsigned long __ffs(unsigned long word)
+#define __ffs(word) \
+ (__builtin_constant_p(word) ? \
+ (unsigned long)__builtin_ctzl(word) : \
+ variable__ffs(word))
+
+static __always_inline unsigned long variable_ffz(unsigned long word)
{
- asm("bsf %1,%0"
+ asm("rep; bsf %1,%0"
: "=r" (word)
- : "rm" (word));
+ : "r" (~word));
return word;
}
@@ -358,13 +280,10 @@ static inline unsigned long __ffs(unsigned long word)
*
* Undefined if no zero exists, so code should check against ~0UL first.
*/
-static inline unsigned long ffz(unsigned long word)
-{
- asm("bsf %1,%0"
- : "=r" (word)
- : "r" (~word));
- return word;
-}
+#define ffz(word) \
+ (__builtin_constant_p(word) ? \
+ (unsigned long)__builtin_ctzl(~word) : \
+ variable_ffz(word))
/*
* __fls: find last set bit in word
@@ -372,7 +291,7 @@ static inline unsigned long ffz(unsigned long word)
*
* Undefined if no set bit exists, so code should check against 0 first.
*/
-static inline unsigned long __fls(unsigned long word)
+static __always_inline unsigned long __fls(unsigned long word)
{
asm("bsr %1,%0"
: "=r" (word)
@@ -380,25 +299,30 @@ static inline unsigned long __fls(unsigned long word)
return word;
}
+#undef ADDR
+
#ifdef __KERNEL__
-/**
- * ffs - find first set bit in word
- * @x: the word to search
- *
- * This is defined the same way as the libc and compiler builtin ffs
- * routines, therefore differs in spirit from the other bitops.
- *
- * ffs(value) returns 0 if value is 0 or the position of the first
- * set bit if value is nonzero. The first (least significant) bit
- * is at position 1.
- */
-static inline int ffs(int x)
+static __always_inline int variable_ffs(int x)
{
int r;
-#ifdef CONFIG_X86_CMOV
+
+#ifdef CONFIG_X86_64
+ /*
+ * AMD64 says BSFL won't clobber the dest reg if x==0; Intel64 says the
+ * dest reg is undefined if x==0, but their CPU architect says its
+ * value is written to set it to the same as before, except that the
+ * top 32 bits will be cleared.
+ *
+ * We cannot do this on 32 bits because at the very least some
+ * 486 CPUs did not behave this way.
+ */
+ asm("bsfl %1,%0"
+ : "=r" (r)
+ : "rm" (x), "0" (-1));
+#elif defined(CONFIG_X86_CMOV)
asm("bsfl %1,%0\n\t"
"cmovzl %2,%0"
- : "=r" (r) : "rm" (x), "r" (-1));
+ : "=&r" (r) : "rm" (x), "r" (-1));
#else
asm("bsfl %1,%0\n\t"
"jnz 1f\n\t"
@@ -409,6 +333,19 @@ static inline int ffs(int x)
}
/**
+ * ffs - find first set bit in word
+ * @x: the word to search
+ *
+ * This is defined the same way as the libc and compiler builtin ffs
+ * routines, therefore differs in spirit from the other bitops.
+ *
+ * ffs(value) returns 0 if value is 0 or the position of the first
+ * set bit if value is nonzero. The first (least significant) bit
+ * is at position 1.
+ */
+#define ffs(x) (__builtin_constant_p(x) ? __builtin_ffs(x) : variable_ffs(x))
+
+/**
* fls - find last set bit in word
* @x: the word to search
*
@@ -419,10 +356,24 @@ static inline int ffs(int x)
* set bit if value is nonzero. The last (most significant) bit is
* at position 32.
*/
-static inline int fls(int x)
+static __always_inline int fls(unsigned int x)
{
int r;
-#ifdef CONFIG_X86_CMOV
+
+#ifdef CONFIG_X86_64
+ /*
+ * AMD64 says BSRL won't clobber the dest reg if x==0; Intel64 says the
+ * dest reg is undefined if x==0, but their CPU architect says its
+ * value is written to set it to the same as before, except that the
+ * top 32 bits will be cleared.
+ *
+ * We cannot do this on 32 bits because at the very least some
+ * 486 CPUs did not behave this way.
+ */
+ asm("bsrl %1,%0"
+ : "=r" (r)
+ : "rm" (x), "0" (-1));
+#elif defined(CONFIG_X86_CMOV)
asm("bsrl %1,%0\n\t"
"cmovzl %2,%0"
: "=&r" (r) : "rm" (x), "rm" (-1));
@@ -434,34 +385,49 @@ static inline int fls(int x)
#endif
return r + 1;
}
-#endif /* __KERNEL__ */
-
-#undef ADDR
-#ifdef __KERNEL__
-
-#include <asm-generic/bitops/find.h>
+/**
+ * fls64 - find last set bit in a 64-bit word
+ * @x: the word to search
+ *
+ * This is defined in a similar way as the libc and compiler builtin
+ * ffsll, but returns the position of the most significant set bit.
+ *
+ * fls64(value) returns 0 if value is 0 or the position of the last
+ * set bit if value is nonzero. The last (most significant) bit is
+ * at position 64.
+ */
+#ifdef CONFIG_X86_64
+static __always_inline int fls64(__u64 x)
+{
+ int bitpos = -1;
+ /*
+ * AMD64 says BSRQ won't clobber the dest reg if x==0; Intel64 says the
+ * dest reg is undefined if x==0, but their CPU architect says its
+ * value is written to set it to the same as before.
+ */
+ asm("bsrq %1,%q0"
+ : "+r" (bitpos)
+ : "rm" (x));
+ return bitpos + 1;
+}
+#else
+#include <asm-generic/bitops/fls64.h>
+#endif
#include <asm-generic/bitops/sched.h>
-#define ARCH_HAS_FAST_MULTIPLIER 1
-
#include <asm/arch_hweight.h>
#include <asm-generic/bitops/const_hweight.h>
-#endif /* __KERNEL__ */
-
-#include <asm-generic/bitops/fls64.h>
-
-#ifdef __KERNEL__
+#include <asm-generic/bitops/instrumented-atomic.h>
+#include <asm-generic/bitops/instrumented-non-atomic.h>
+#include <asm-generic/bitops/instrumented-lock.h>
#include <asm-generic/bitops/le.h>
-#define ext2_set_bit_atomic(lock, nr, addr) \
- test_and_set_bit((nr), (unsigned long *)(addr))
-#define ext2_clear_bit_atomic(lock, nr, addr) \
- test_and_clear_bit((nr), (unsigned long *)(addr))
+#include <asm-generic/bitops/ext2-atomic-setbit.h>
#endif /* __KERNEL__ */
#endif /* _ASM_X86_BITOPS_H */
diff --git a/arch/x86/include/asm/boot.h b/arch/x86/include/asm/boot.h
index 5e1a2eef3e7c..9191280d9ea3 100644
--- a/arch/x86/include/asm/boot.h
+++ b/arch/x86/include/asm/boot.h
@@ -1,14 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_BOOT_H
#define _ASM_X86_BOOT_H
-/* Internal svga startup constants */
-#define NORMAL_VGA 0xffff /* 80x25 mode */
-#define EXTENDED_VGA 0xfffe /* 80x50 mode */
-#define ASK_VGA 0xfffd /* ask for it at bootup */
-
-#ifdef __KERNEL__
#include <asm/pgtable_types.h>
+#include <uapi/asm/boot.h>
/* Physical address where kernel should be loaded. */
#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \
@@ -17,31 +13,53 @@
/* Minimum kernel alignment, as a power of two */
#ifdef CONFIG_X86_64
-#define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT
+# define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT
#else
-#define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT + THREAD_ORDER)
+# define MIN_KERNEL_ALIGN_LG2 (PAGE_SHIFT + THREAD_SIZE_ORDER)
#endif
#define MIN_KERNEL_ALIGN (_AC(1, UL) << MIN_KERNEL_ALIGN_LG2)
#if (CONFIG_PHYSICAL_ALIGN & (CONFIG_PHYSICAL_ALIGN-1)) || \
(CONFIG_PHYSICAL_ALIGN < MIN_KERNEL_ALIGN)
-#error "Invalid value for CONFIG_PHYSICAL_ALIGN"
+# error "Invalid value for CONFIG_PHYSICAL_ALIGN"
#endif
-#ifdef CONFIG_KERNEL_BZIP2
-#define BOOT_HEAP_SIZE 0x400000
-#else /* !CONFIG_KERNEL_BZIP2 */
+#if defined(CONFIG_KERNEL_BZIP2)
+# define BOOT_HEAP_SIZE 0x400000
+#elif defined(CONFIG_KERNEL_ZSTD)
+/*
+ * Zstd needs to allocate the ZSTD_DCtx in order to decompress the kernel.
+ * The ZSTD_DCtx is ~160KB, so set the heap size to 192KB because it is a
+ * round number and to allow some slack.
+ */
+# define BOOT_HEAP_SIZE 0x30000
+#else
+# define BOOT_HEAP_SIZE 0x10000
+#endif
-#define BOOT_HEAP_SIZE 0x8000
+#ifdef CONFIG_X86_64
+# define BOOT_STACK_SIZE 0x4000
-#endif /* !CONFIG_KERNEL_BZIP2 */
+# define BOOT_INIT_PGT_SIZE (6*4096)
+# ifdef CONFIG_RANDOMIZE_BASE
+/*
+ * Assuming all cross the 512GB boundary:
+ * 1 page for level4
+ * (2+2)*4 pages for kernel, param, cmd_line, and randomized kernel
+ * 2 pages for first 2M (video RAM: CONFIG_X86_VERBOSE_BOOTUP).
+ * Total is 19 pages.
+ */
+# ifdef CONFIG_X86_VERBOSE_BOOTUP
+# define BOOT_PGT_SIZE (19*4096)
+# else /* !CONFIG_X86_VERBOSE_BOOTUP */
+# define BOOT_PGT_SIZE (17*4096)
+# endif
+# else /* !CONFIG_RANDOMIZE_BASE */
+# define BOOT_PGT_SIZE BOOT_INIT_PGT_SIZE
+# endif
-#ifdef CONFIG_X86_64
-#define BOOT_STACK_SIZE 0x4000
-#else
-#define BOOT_STACK_SIZE 0x1000
+#else /* !CONFIG_X86_64 */
+# define BOOT_STACK_SIZE 0x1000
#endif
-#endif /* __KERNEL__ */
-
#endif /* _ASM_X86_BOOT_H */
diff --git a/arch/x86/include/asm/bootparam.h b/arch/x86/include/asm/bootparam.h
deleted file mode 100644
index e020d88ec02d..000000000000
--- a/arch/x86/include/asm/bootparam.h
+++ /dev/null
@@ -1,134 +0,0 @@
-#ifndef _ASM_X86_BOOTPARAM_H
-#define _ASM_X86_BOOTPARAM_H
-
-#include <linux/types.h>
-#include <linux/screen_info.h>
-#include <linux/apm_bios.h>
-#include <linux/edd.h>
-#include <asm/e820.h>
-#include <asm/ist.h>
-#include <video/edid.h>
-
-/* setup data types */
-#define SETUP_NONE 0
-#define SETUP_E820_EXT 1
-#define SETUP_DTB 2
-
-/* extensible setup data list node */
-struct setup_data {
- __u64 next;
- __u32 type;
- __u32 len;
- __u8 data[0];
-};
-
-struct setup_header {
- __u8 setup_sects;
- __u16 root_flags;
- __u32 syssize;
- __u16 ram_size;
-#define RAMDISK_IMAGE_START_MASK 0x07FF
-#define RAMDISK_PROMPT_FLAG 0x8000
-#define RAMDISK_LOAD_FLAG 0x4000
- __u16 vid_mode;
- __u16 root_dev;
- __u16 boot_flag;
- __u16 jump;
- __u32 header;
- __u16 version;
- __u32 realmode_swtch;
- __u16 start_sys;
- __u16 kernel_version;
- __u8 type_of_loader;
- __u8 loadflags;
-#define LOADED_HIGH (1<<0)
-#define QUIET_FLAG (1<<5)
-#define KEEP_SEGMENTS (1<<6)
-#define CAN_USE_HEAP (1<<7)
- __u16 setup_move_size;
- __u32 code32_start;
- __u32 ramdisk_image;
- __u32 ramdisk_size;
- __u32 bootsect_kludge;
- __u16 heap_end_ptr;
- __u8 ext_loader_ver;
- __u8 ext_loader_type;
- __u32 cmd_line_ptr;
- __u32 initrd_addr_max;
- __u32 kernel_alignment;
- __u8 relocatable_kernel;
- __u8 _pad2[3];
- __u32 cmdline_size;
- __u32 hardware_subarch;
- __u64 hardware_subarch_data;
- __u32 payload_offset;
- __u32 payload_length;
- __u64 setup_data;
-} __attribute__((packed));
-
-struct sys_desc_table {
- __u16 length;
- __u8 table[14];
-};
-
-/* Gleaned from OFW's set-parameters in cpu/x86/pc/linux.fth */
-struct olpc_ofw_header {
- __u32 ofw_magic; /* OFW signature */
- __u32 ofw_version;
- __u32 cif_handler; /* callback into OFW */
- __u32 irq_desc_table;
-} __attribute__((packed));
-
-struct efi_info {
- __u32 efi_loader_signature;
- __u32 efi_systab;
- __u32 efi_memdesc_size;
- __u32 efi_memdesc_version;
- __u32 efi_memmap;
- __u32 efi_memmap_size;
- __u32 efi_systab_hi;
- __u32 efi_memmap_hi;
-};
-
-/* The so-called "zeropage" */
-struct boot_params {
- struct screen_info screen_info; /* 0x000 */
- struct apm_bios_info apm_bios_info; /* 0x040 */
- __u8 _pad2[4]; /* 0x054 */
- __u64 tboot_addr; /* 0x058 */
- struct ist_info ist_info; /* 0x060 */
- __u8 _pad3[16]; /* 0x070 */
- __u8 hd0_info[16]; /* obsolete! */ /* 0x080 */
- __u8 hd1_info[16]; /* obsolete! */ /* 0x090 */
- struct sys_desc_table sys_desc_table; /* 0x0a0 */
- struct olpc_ofw_header olpc_ofw_header; /* 0x0b0 */
- __u8 _pad4[128]; /* 0x0c0 */
- struct edid_info edid_info; /* 0x140 */
- struct efi_info efi_info; /* 0x1c0 */
- __u32 alt_mem_k; /* 0x1e0 */
- __u32 scratch; /* Scratch field! */ /* 0x1e4 */
- __u8 e820_entries; /* 0x1e8 */
- __u8 eddbuf_entries; /* 0x1e9 */
- __u8 edd_mbr_sig_buf_entries; /* 0x1ea */
- __u8 _pad6[6]; /* 0x1eb */
- struct setup_header hdr; /* setup header */ /* 0x1f1 */
- __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)];
- __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */
- struct e820entry e820_map[E820MAX]; /* 0x2d0 */
- __u8 _pad8[48]; /* 0xcd0 */
- struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */
- __u8 _pad9[276]; /* 0xeec */
-} __attribute__((packed));
-
-enum {
- X86_SUBARCH_PC = 0,
- X86_SUBARCH_LGUEST,
- X86_SUBARCH_XEN,
- X86_SUBARCH_MRST,
- X86_SUBARCH_CE4100,
- X86_NR_SUBARCHS,
-};
-
-
-
-#endif /* _ASM_X86_BOOTPARAM_H */
diff --git a/arch/x86/include/asm/bootparam_utils.h b/arch/x86/include/asm/bootparam_utils.h
new file mode 100644
index 000000000000..d90ae472fb76
--- /dev/null
+++ b/arch/x86/include/asm/bootparam_utils.h
@@ -0,0 +1,91 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_BOOTPARAM_UTILS_H
+#define _ASM_X86_BOOTPARAM_UTILS_H
+
+#include <asm/bootparam.h>
+
+/*
+ * This file is included from multiple environments. Do not
+ * add completing #includes to make it standalone.
+ */
+
+/*
+ * Deal with bootloaders which fail to initialize unknown fields in
+ * boot_params to zero. The list fields in this list are taken from
+ * analysis of kexec-tools; if other broken bootloaders initialize a
+ * different set of fields we will need to figure out how to disambiguate.
+ *
+ * Note: efi_info is commonly left uninitialized, but that field has a
+ * private magic, so it is better to leave it unchanged.
+ */
+
+#define sizeof_mbr(type, member) ({ sizeof(((type *)0)->member); })
+
+#define BOOT_PARAM_PRESERVE(struct_member) \
+ { \
+ .start = offsetof(struct boot_params, struct_member), \
+ .len = sizeof_mbr(struct boot_params, struct_member), \
+ }
+
+struct boot_params_to_save {
+ unsigned int start;
+ unsigned int len;
+};
+
+static void sanitize_boot_params(struct boot_params *boot_params)
+{
+ /*
+ * IMPORTANT NOTE TO BOOTLOADER AUTHORS: do not simply clear
+ * this field. The purpose of this field is to guarantee
+ * compliance with the x86 boot spec located in
+ * Documentation/arch/x86/boot.rst . That spec says that the
+ * *whole* structure should be cleared, after which only the
+ * portion defined by struct setup_header (boot_params->hdr)
+ * should be copied in.
+ *
+ * If you're having an issue because the sentinel is set, you
+ * need to change the whole structure to be cleared, not this
+ * (or any other) individual field, or you will soon have
+ * problems again.
+ */
+ if (boot_params->sentinel) {
+ static struct boot_params scratch;
+ char *bp_base = (char *)boot_params;
+ char *save_base = (char *)&scratch;
+ int i;
+
+ const struct boot_params_to_save to_save[] = {
+ BOOT_PARAM_PRESERVE(screen_info),
+ BOOT_PARAM_PRESERVE(apm_bios_info),
+ BOOT_PARAM_PRESERVE(tboot_addr),
+ BOOT_PARAM_PRESERVE(ist_info),
+ BOOT_PARAM_PRESERVE(hd0_info),
+ BOOT_PARAM_PRESERVE(hd1_info),
+ BOOT_PARAM_PRESERVE(sys_desc_table),
+ BOOT_PARAM_PRESERVE(olpc_ofw_header),
+ BOOT_PARAM_PRESERVE(efi_info),
+ BOOT_PARAM_PRESERVE(alt_mem_k),
+ BOOT_PARAM_PRESERVE(scratch),
+ BOOT_PARAM_PRESERVE(e820_entries),
+ BOOT_PARAM_PRESERVE(eddbuf_entries),
+ BOOT_PARAM_PRESERVE(edd_mbr_sig_buf_entries),
+ BOOT_PARAM_PRESERVE(edd_mbr_sig_buffer),
+ BOOT_PARAM_PRESERVE(secure_boot),
+ BOOT_PARAM_PRESERVE(hdr),
+ BOOT_PARAM_PRESERVE(e820_table),
+ BOOT_PARAM_PRESERVE(eddbuf),
+ BOOT_PARAM_PRESERVE(cc_blob_address),
+ };
+
+ memset(&scratch, 0, sizeof(scratch));
+
+ for (i = 0; i < ARRAY_SIZE(to_save); i++) {
+ memcpy(save_base + to_save[i].start,
+ bp_base + to_save[i].start, to_save[i].len);
+ }
+
+ memcpy(boot_params, save_base, sizeof(*boot_params));
+ }
+}
+
+#endif /* _ASM_X86_BOOTPARAM_UTILS_H */
diff --git a/arch/x86/include/asm/bug.h b/arch/x86/include/asm/bug.h
index f654d1bb17fb..a3ec87d198ac 100644
--- a/arch/x86/include/asm/bug.h
+++ b/arch/x86/include/asm/bug.h
@@ -1,39 +1,89 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_BUG_H
#define _ASM_X86_BUG_H
-#ifdef CONFIG_BUG
-#define HAVE_ARCH_BUG
+#include <linux/stringify.h>
+#include <linux/instrumentation.h>
+#include <linux/objtool.h>
-#ifdef CONFIG_DEBUG_BUGVERBOSE
+/*
+ * Despite that some emulators terminate on UD2, we use it for WARN().
+ */
+#define ASM_UD2 ".byte 0x0f, 0x0b"
+#define INSN_UD2 0x0b0f
+#define LEN_UD2 2
+
+#ifdef CONFIG_GENERIC_BUG
#ifdef CONFIG_X86_32
-# define __BUG_C0 "2:\t.long 1b, %c0\n"
+# define __BUG_REL(val) ".long " __stringify(val)
#else
-# define __BUG_C0 "2:\t.long 1b - 2b, %c0 - 2b\n"
+# define __BUG_REL(val) ".long " __stringify(val) " - ."
#endif
-#define BUG() \
-do { \
- asm volatile("1:\tud2\n" \
- ".pushsection __bug_table,\"a\"\n" \
- __BUG_C0 \
- "\t.word %c1, 0\n" \
- "\t.org 2b+%c2\n" \
- ".popsection" \
- : : "i" (__FILE__), "i" (__LINE__), \
- "i" (sizeof(struct bug_entry))); \
- unreachable(); \
+#ifdef CONFIG_DEBUG_BUGVERBOSE
+
+#define _BUG_FLAGS(ins, flags, extra) \
+do { \
+ asm_inline volatile("1:\t" ins "\n" \
+ ".pushsection __bug_table,\"aw\"\n" \
+ "2:\t" __BUG_REL(1b) "\t# bug_entry::bug_addr\n" \
+ "\t" __BUG_REL(%c0) "\t# bug_entry::file\n" \
+ "\t.word %c1" "\t# bug_entry::line\n" \
+ "\t.word %c2" "\t# bug_entry::flags\n" \
+ "\t.org 2b+%c3\n" \
+ ".popsection\n" \
+ extra \
+ : : "i" (__FILE__), "i" (__LINE__), \
+ "i" (flags), \
+ "i" (sizeof(struct bug_entry))); \
+} while (0)
+
+#else /* !CONFIG_DEBUG_BUGVERBOSE */
+
+#define _BUG_FLAGS(ins, flags, extra) \
+do { \
+ asm_inline volatile("1:\t" ins "\n" \
+ ".pushsection __bug_table,\"aw\"\n" \
+ "2:\t" __BUG_REL(1b) "\t# bug_entry::bug_addr\n" \
+ "\t.word %c0" "\t# bug_entry::flags\n" \
+ "\t.org 2b+%c1\n" \
+ ".popsection\n" \
+ extra \
+ : : "i" (flags), \
+ "i" (sizeof(struct bug_entry))); \
} while (0)
+#endif /* CONFIG_DEBUG_BUGVERBOSE */
+
#else
+
+#define _BUG_FLAGS(ins, flags, extra) asm volatile(ins)
+
+#endif /* CONFIG_GENERIC_BUG */
+
+#define HAVE_ARCH_BUG
#define BUG() \
do { \
- asm volatile("ud2"); \
- unreachable(); \
+ instrumentation_begin(); \
+ _BUG_FLAGS(ASM_UD2, 0, ""); \
+ __builtin_unreachable(); \
} while (0)
-#endif
-#endif /* !CONFIG_BUG */
+/*
+ * This instrumentation_begin() is strictly speaking incorrect; but it
+ * suppresses the complaints from WARN()s in noinstr code. If such a WARN()
+ * were to trigger, we'd rather wreck the machine in an attempt to get the
+ * message out than not know about it.
+ */
+#define __WARN_FLAGS(flags) \
+do { \
+ __auto_type __flags = BUGFLAG_WARNING|(flags); \
+ instrumentation_begin(); \
+ _BUG_FLAGS(ASM_UD2, __flags, ASM_REACHABLE); \
+ instrumentation_end(); \
+} while (0)
#include <asm-generic/bug.h>
+
#endif /* _ASM_X86_BUG_H */
diff --git a/arch/x86/include/asm/bugs.h b/arch/x86/include/asm/bugs.h
index 08abf639075f..92ae28389940 100644
--- a/arch/x86/include/asm/bugs.h
+++ b/arch/x86/include/asm/bugs.h
@@ -1,6 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_BUGS_H
#define _ASM_X86_BUGS_H
+#include <asm/processor.h>
+
extern void check_bugs(void);
#if defined(CONFIG_CPU_SUP_INTEL) && defined(CONFIG_X86_32)
@@ -9,4 +12,6 @@ int ppro_with_ram_bug(void);
static inline int ppro_with_ram_bug(void) { return 0; }
#endif
+extern void cpu_bugs_smt_update(void);
+
#endif /* _ASM_X86_BUGS_H */
diff --git a/arch/x86/include/asm/cache.h b/arch/x86/include/asm/cache.h
index 48f99f15452e..69404eae9983 100644
--- a/arch/x86/include/asm/cache.h
+++ b/arch/x86/include/asm/cache.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CACHE_H
#define _ASM_X86_CACHE_H
@@ -7,7 +8,7 @@
#define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT)
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
-#define __read_mostly __attribute__((__section__(".data..read_mostly")))
+#define __read_mostly __section(".data..read_mostly")
#define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT
#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT)
diff --git a/arch/x86/include/asm/cacheflush.h b/arch/x86/include/asm/cacheflush.h
index 4e12668711e5..b192d917a6d0 100644
--- a/arch/x86/include/asm/cacheflush.h
+++ b/arch/x86/include/asm/cacheflush.h
@@ -1,165 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CACHEFLUSH_H
#define _ASM_X86_CACHEFLUSH_H
+#include <linux/mm.h>
+
/* Caches aren't brain-dead on the intel. */
#include <asm-generic/cacheflush.h>
-
-#ifdef CONFIG_X86_PAT
-/*
- * X86 PAT uses page flags WC and Uncached together to keep track of
- * memory type of pages that have backing page struct. X86 PAT supports 3
- * different memory types, _PAGE_CACHE_WB, _PAGE_CACHE_WC and
- * _PAGE_CACHE_UC_MINUS and fourth state where page's memory type has not
- * been changed from its default (value of -1 used to denote this).
- * Note we do not support _PAGE_CACHE_UC here.
- */
-
-#define _PGMT_DEFAULT 0
-#define _PGMT_WC (1UL << PG_arch_1)
-#define _PGMT_UC_MINUS (1UL << PG_uncached)
-#define _PGMT_WB (1UL << PG_uncached | 1UL << PG_arch_1)
-#define _PGMT_MASK (1UL << PG_uncached | 1UL << PG_arch_1)
-#define _PGMT_CLEAR_MASK (~_PGMT_MASK)
-
-static inline unsigned long get_page_memtype(struct page *pg)
-{
- unsigned long pg_flags = pg->flags & _PGMT_MASK;
-
- if (pg_flags == _PGMT_DEFAULT)
- return -1;
- else if (pg_flags == _PGMT_WC)
- return _PAGE_CACHE_WC;
- else if (pg_flags == _PGMT_UC_MINUS)
- return _PAGE_CACHE_UC_MINUS;
- else
- return _PAGE_CACHE_WB;
-}
-
-static inline void set_page_memtype(struct page *pg, unsigned long memtype)
-{
- unsigned long memtype_flags = _PGMT_DEFAULT;
- unsigned long old_flags;
- unsigned long new_flags;
-
- switch (memtype) {
- case _PAGE_CACHE_WC:
- memtype_flags = _PGMT_WC;
- break;
- case _PAGE_CACHE_UC_MINUS:
- memtype_flags = _PGMT_UC_MINUS;
- break;
- case _PAGE_CACHE_WB:
- memtype_flags = _PGMT_WB;
- break;
- }
-
- do {
- old_flags = pg->flags;
- new_flags = (old_flags & _PGMT_CLEAR_MASK) | memtype_flags;
- } while (cmpxchg(&pg->flags, old_flags, new_flags) != old_flags);
-}
-#else
-static inline unsigned long get_page_memtype(struct page *pg) { return -1; }
-static inline void set_page_memtype(struct page *pg, unsigned long memtype) { }
-#endif
-
-/*
- * The set_memory_* API can be used to change various attributes of a virtual
- * address range. The attributes include:
- * Cachability : UnCached, WriteCombining, WriteBack
- * Executability : eXeutable, NoteXecutable
- * Read/Write : ReadOnly, ReadWrite
- * Presence : NotPresent
- *
- * Within a category, the attributes are mutually exclusive.
- *
- * The implementation of this API will take care of various aspects that
- * are associated with changing such attributes, such as:
- * - Flushing TLBs
- * - Flushing CPU caches
- * - Making sure aliases of the memory behind the mapping don't violate
- * coherency rules as defined by the CPU in the system.
- *
- * What this API does not do:
- * - Provide exclusion between various callers - including callers that
- * operation on other mappings of the same physical page
- * - Restore default attributes when a page is freed
- * - Guarantee that mappings other than the requested one are
- * in any state, other than that these do not violate rules for
- * the CPU you have. Do not depend on any effects on other mappings,
- * CPUs other than the one you have may have more relaxed rules.
- * The caller is required to take care of these.
- */
-
-int _set_memory_uc(unsigned long addr, int numpages);
-int _set_memory_wc(unsigned long addr, int numpages);
-int _set_memory_wb(unsigned long addr, int numpages);
-int set_memory_uc(unsigned long addr, int numpages);
-int set_memory_wc(unsigned long addr, int numpages);
-int set_memory_wb(unsigned long addr, int numpages);
-int set_memory_x(unsigned long addr, int numpages);
-int set_memory_nx(unsigned long addr, int numpages);
-int set_memory_ro(unsigned long addr, int numpages);
-int set_memory_rw(unsigned long addr, int numpages);
-int set_memory_np(unsigned long addr, int numpages);
-int set_memory_4k(unsigned long addr, int numpages);
-
-int set_memory_array_uc(unsigned long *addr, int addrinarray);
-int set_memory_array_wc(unsigned long *addr, int addrinarray);
-int set_memory_array_wb(unsigned long *addr, int addrinarray);
-
-int set_pages_array_uc(struct page **pages, int addrinarray);
-int set_pages_array_wc(struct page **pages, int addrinarray);
-int set_pages_array_wb(struct page **pages, int addrinarray);
-
-/*
- * For legacy compatibility with the old APIs, a few functions
- * are provided that work on a "struct page".
- * These functions operate ONLY on the 1:1 kernel mapping of the
- * memory that the struct page represents, and internally just
- * call the set_memory_* function. See the description of the
- * set_memory_* function for more details on conventions.
- *
- * These APIs should be considered *deprecated* and are likely going to
- * be removed in the future.
- * The reason for this is the implicit operation on the 1:1 mapping only,
- * making this not a generally useful API.
- *
- * Specifically, many users of the old APIs had a virtual address,
- * called virt_to_page() or vmalloc_to_page() on that address to
- * get a struct page* that the old API required.
- * To convert these cases, use set_memory_*() on the original
- * virtual address, do not use these functions.
- */
-
-int set_pages_uc(struct page *page, int numpages);
-int set_pages_wb(struct page *page, int numpages);
-int set_pages_x(struct page *page, int numpages);
-int set_pages_nx(struct page *page, int numpages);
-int set_pages_ro(struct page *page, int numpages);
-int set_pages_rw(struct page *page, int numpages);
-
+#include <asm/special_insns.h>
void clflush_cache_range(void *addr, unsigned int size);
-#ifdef CONFIG_DEBUG_RODATA
-void mark_rodata_ro(void);
-extern const int rodata_test_data;
-extern int kernel_set_to_readonly;
-void set_kernel_text_rw(void);
-void set_kernel_text_ro(void);
-#else
-static inline void set_kernel_text_rw(void) { }
-static inline void set_kernel_text_ro(void) { }
-#endif
-
-#ifdef CONFIG_DEBUG_RODATA_TEST
-int rodata_test(void);
-#else
-static inline int rodata_test(void)
-{
- return 0;
-}
-#endif
-
#endif /* _ASM_X86_CACHEFLUSH_H */
diff --git a/arch/x86/include/asm/cacheinfo.h b/arch/x86/include/asm/cacheinfo.h
new file mode 100644
index 000000000000..ce9685fc78d8
--- /dev/null
+++ b/arch/x86/include/asm/cacheinfo.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_CACHEINFO_H
+#define _ASM_X86_CACHEINFO_H
+
+/* Kernel controls MTRR and/or PAT MSRs. */
+extern unsigned int memory_caching_control;
+#define CACHE_MTRR 0x01
+#define CACHE_PAT 0x02
+
+void cacheinfo_amd_init_llc_id(struct cpuinfo_x86 *c, int cpu);
+void cacheinfo_hygon_init_llc_id(struct cpuinfo_x86 *c, int cpu);
+
+void cache_disable(void);
+void cache_enable(void);
+void set_cache_aps_delayed_init(bool val);
+bool get_cache_aps_delayed_init(void);
+void cache_bp_init(void);
+void cache_bp_restore(void);
+void cache_aps_init(void);
+
+#endif /* _ASM_X86_CACHEINFO_H */
diff --git a/arch/x86/include/asm/calgary.h b/arch/x86/include/asm/calgary.h
deleted file mode 100644
index 0d467b338835..000000000000
--- a/arch/x86/include/asm/calgary.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Derived from include/asm-powerpc/iommu.h
- *
- * Copyright IBM Corporation, 2006-2007
- *
- * Author: Jon Mason <jdmason@us.ibm.com>
- * Author: Muli Ben-Yehuda <muli@il.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _ASM_X86_CALGARY_H
-#define _ASM_X86_CALGARY_H
-
-#include <linux/spinlock.h>
-#include <linux/device.h>
-#include <linux/dma-mapping.h>
-#include <linux/timer.h>
-#include <asm/types.h>
-
-struct iommu_table {
- struct cal_chipset_ops *chip_ops; /* chipset specific funcs */
- unsigned long it_base; /* mapped address of tce table */
- unsigned long it_hint; /* Hint for next alloc */
- unsigned long *it_map; /* A simple allocation bitmap for now */
- void __iomem *bbar; /* Bridge BAR */
- u64 tar_val; /* Table Address Register */
- struct timer_list watchdog_timer;
- spinlock_t it_lock; /* Protects it_map */
- unsigned int it_size; /* Size of iommu table in entries */
- unsigned char it_busno; /* Bus number this table belongs to */
-};
-
-struct cal_chipset_ops {
- void (*handle_quirks)(struct iommu_table *tbl, struct pci_dev *dev);
- void (*tce_cache_blast)(struct iommu_table *tbl);
- void (*dump_error_regs)(struct iommu_table *tbl);
-};
-
-#define TCE_TABLE_SIZE_UNSPECIFIED ~0
-#define TCE_TABLE_SIZE_64K 0
-#define TCE_TABLE_SIZE_128K 1
-#define TCE_TABLE_SIZE_256K 2
-#define TCE_TABLE_SIZE_512K 3
-#define TCE_TABLE_SIZE_1M 4
-#define TCE_TABLE_SIZE_2M 5
-#define TCE_TABLE_SIZE_4M 6
-#define TCE_TABLE_SIZE_8M 7
-
-extern int use_calgary;
-
-#ifdef CONFIG_CALGARY_IOMMU
-extern int detect_calgary(void);
-#else
-static inline int detect_calgary(void) { return -ENODEV; }
-#endif
-
-#endif /* _ASM_X86_CALGARY_H */
diff --git a/arch/x86/include/asm/calling.h b/arch/x86/include/asm/calling.h
deleted file mode 100644
index 30af5a832163..000000000000
--- a/arch/x86/include/asm/calling.h
+++ /dev/null
@@ -1,222 +0,0 @@
-/*
-
- x86 function call convention, 64-bit:
- -------------------------------------
- arguments | callee-saved | extra caller-saved | return
- [callee-clobbered] | | [callee-clobbered] |
- ---------------------------------------------------------------------------
- rdi rsi rdx rcx r8-9 | rbx rbp [*] r12-15 | r10-11 | rax, rdx [**]
-
- ( rsp is obviously invariant across normal function calls. (gcc can 'merge'
- functions when it sees tail-call optimization possibilities) rflags is
- clobbered. Leftover arguments are passed over the stack frame.)
-
- [*] In the frame-pointers case rbp is fixed to the stack frame.
-
- [**] for struct return values wider than 64 bits the return convention is a
- bit more complex: up to 128 bits width we return small structures
- straight in rax, rdx. For structures larger than that (3 words or
- larger) the caller puts a pointer to an on-stack return struct
- [allocated in the caller's stack frame] into the first argument - i.e.
- into rdi. All other arguments shift up by one in this case.
- Fortunately this case is rare in the kernel.
-
-For 32-bit we have the following conventions - kernel is built with
--mregparm=3 and -freg-struct-return:
-
- x86 function calling convention, 32-bit:
- ----------------------------------------
- arguments | callee-saved | extra caller-saved | return
- [callee-clobbered] | | [callee-clobbered] |
- -------------------------------------------------------------------------
- eax edx ecx | ebx edi esi ebp [*] | <none> | eax, edx [**]
-
- ( here too esp is obviously invariant across normal function calls. eflags
- is clobbered. Leftover arguments are passed over the stack frame. )
-
- [*] In the frame-pointers case ebp is fixed to the stack frame.
-
- [**] We build with -freg-struct-return, which on 32-bit means similar
- semantics as on 64-bit: edx can be used for a second return value
- (i.e. covering integer and structure sizes up to 64 bits) - after that
- it gets more complex and more expensive: 3-word or larger struct returns
- get done in the caller's frame and the pointer to the return struct goes
- into regparm0, i.e. eax - the other arguments shift up and the
- function's register parameters degenerate to regparm=2 in essence.
-
-*/
-
-
-/*
- * 64-bit system call stack frame layout defines and helpers, for
- * assembly code (note that the seemingly unnecessary parentheses
- * are to prevent cpp from inserting spaces in expressions that get
- * passed to macros):
- */
-
-#define R15 (0)
-#define R14 (8)
-#define R13 (16)
-#define R12 (24)
-#define RBP (32)
-#define RBX (40)
-
-/* arguments: interrupts/non tracing syscalls only save up to here: */
-#define R11 (48)
-#define R10 (56)
-#define R9 (64)
-#define R8 (72)
-#define RAX (80)
-#define RCX (88)
-#define RDX (96)
-#define RSI (104)
-#define RDI (112)
-#define ORIG_RAX (120) /* + error_code */
-/* end of arguments */
-
-/* cpu exception frame or undefined in case of fast syscall: */
-#define RIP (128)
-#define CS (136)
-#define EFLAGS (144)
-#define RSP (152)
-#define SS (160)
-
-#define ARGOFFSET R11
-#define SWFRAME ORIG_RAX
-
- .macro SAVE_ARGS addskip=0, norcx=0, nor891011=0
- subq $9*8+\addskip, %rsp
- CFI_ADJUST_CFA_OFFSET 9*8+\addskip
- movq %rdi, 8*8(%rsp)
- CFI_REL_OFFSET rdi, 8*8
- movq %rsi, 7*8(%rsp)
- CFI_REL_OFFSET rsi, 7*8
- movq %rdx, 6*8(%rsp)
- CFI_REL_OFFSET rdx, 6*8
- .if \norcx
- .else
- movq %rcx, 5*8(%rsp)
- CFI_REL_OFFSET rcx, 5*8
- .endif
- movq %rax, 4*8(%rsp)
- CFI_REL_OFFSET rax, 4*8
- .if \nor891011
- .else
- movq %r8, 3*8(%rsp)
- CFI_REL_OFFSET r8, 3*8
- movq %r9, 2*8(%rsp)
- CFI_REL_OFFSET r9, 2*8
- movq %r10, 1*8(%rsp)
- CFI_REL_OFFSET r10, 1*8
- movq %r11, (%rsp)
- CFI_REL_OFFSET r11, 0*8
- .endif
- .endm
-
-#define ARG_SKIP (9*8)
-
- .macro RESTORE_ARGS skiprax=0, addskip=0, skiprcx=0, skipr11=0, \
- skipr8910=0, skiprdx=0
- .if \skipr11
- .else
- movq (%rsp), %r11
- CFI_RESTORE r11
- .endif
- .if \skipr8910
- .else
- movq 1*8(%rsp), %r10
- CFI_RESTORE r10
- movq 2*8(%rsp), %r9
- CFI_RESTORE r9
- movq 3*8(%rsp), %r8
- CFI_RESTORE r8
- .endif
- .if \skiprax
- .else
- movq 4*8(%rsp), %rax
- CFI_RESTORE rax
- .endif
- .if \skiprcx
- .else
- movq 5*8(%rsp), %rcx
- CFI_RESTORE rcx
- .endif
- .if \skiprdx
- .else
- movq 6*8(%rsp), %rdx
- CFI_RESTORE rdx
- .endif
- movq 7*8(%rsp), %rsi
- CFI_RESTORE rsi
- movq 8*8(%rsp), %rdi
- CFI_RESTORE rdi
- .if ARG_SKIP+\addskip > 0
- addq $ARG_SKIP+\addskip, %rsp
- CFI_ADJUST_CFA_OFFSET -(ARG_SKIP+\addskip)
- .endif
- .endm
-
- .macro LOAD_ARGS offset, skiprax=0
- movq \offset(%rsp), %r11
- movq \offset+8(%rsp), %r10
- movq \offset+16(%rsp), %r9
- movq \offset+24(%rsp), %r8
- movq \offset+40(%rsp), %rcx
- movq \offset+48(%rsp), %rdx
- movq \offset+56(%rsp), %rsi
- movq \offset+64(%rsp), %rdi
- .if \skiprax
- .else
- movq \offset+72(%rsp), %rax
- .endif
- .endm
-
-#define REST_SKIP (6*8)
-
- .macro SAVE_REST
- subq $REST_SKIP, %rsp
- CFI_ADJUST_CFA_OFFSET REST_SKIP
- movq %rbx, 5*8(%rsp)
- CFI_REL_OFFSET rbx, 5*8
- movq %rbp, 4*8(%rsp)
- CFI_REL_OFFSET rbp, 4*8
- movq %r12, 3*8(%rsp)
- CFI_REL_OFFSET r12, 3*8
- movq %r13, 2*8(%rsp)
- CFI_REL_OFFSET r13, 2*8
- movq %r14, 1*8(%rsp)
- CFI_REL_OFFSET r14, 1*8
- movq %r15, (%rsp)
- CFI_REL_OFFSET r15, 0*8
- .endm
-
- .macro RESTORE_REST
- movq (%rsp), %r15
- CFI_RESTORE r15
- movq 1*8(%rsp), %r14
- CFI_RESTORE r14
- movq 2*8(%rsp), %r13
- CFI_RESTORE r13
- movq 3*8(%rsp), %r12
- CFI_RESTORE r12
- movq 4*8(%rsp), %rbp
- CFI_RESTORE rbp
- movq 5*8(%rsp), %rbx
- CFI_RESTORE rbx
- addq $REST_SKIP, %rsp
- CFI_ADJUST_CFA_OFFSET -(REST_SKIP)
- .endm
-
- .macro SAVE_ALL
- SAVE_ARGS
- SAVE_REST
- .endm
-
- .macro RESTORE_ALL addskip=0
- RESTORE_REST
- RESTORE_ARGS 0, \addskip
- .endm
-
- .macro icebp
- .byte 0xf1
- .endm
diff --git a/arch/x86/include/asm/ce4100.h b/arch/x86/include/asm/ce4100.h
index e656ad8c0a2e..2930f560d7f3 100644
--- a/arch/x86/include/asm/ce4100.h
+++ b/arch/x86/include/asm/ce4100.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_CE4100_H_
#define _ASM_CE4100_H_
diff --git a/arch/x86/include/asm/cfi.h b/arch/x86/include/asm/cfi.h
new file mode 100644
index 000000000000..58dacd90daef
--- /dev/null
+++ b/arch/x86/include/asm/cfi.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_CFI_H
+#define _ASM_X86_CFI_H
+
+/*
+ * Clang Control Flow Integrity (CFI) support.
+ *
+ * Copyright (C) 2022 Google LLC
+ */
+
+#include <linux/cfi.h>
+
+#ifdef CONFIG_CFI_CLANG
+enum bug_trap_type handle_cfi_failure(struct pt_regs *regs);
+#else
+static inline enum bug_trap_type handle_cfi_failure(struct pt_regs *regs)
+{
+ return BUG_TRAP_TYPE_NONE;
+}
+#endif /* CONFIG_CFI_CLANG */
+
+#endif /* _ASM_X86_CFI_H */
diff --git a/arch/x86/include/asm/checksum.h b/arch/x86/include/asm/checksum.h
index 848850fd7d62..6df6ece8a28e 100644
--- a/arch/x86/include/asm/checksum.h
+++ b/arch/x86/include/asm/checksum.h
@@ -1,5 +1,13 @@
-#ifdef CONFIG_X86_32
-# include "checksum_32.h"
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifdef CONFIG_GENERIC_CSUM
+# include <asm-generic/checksum.h>
#else
-# include "checksum_64.h"
+# define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER 1
+# define HAVE_CSUM_COPY_USER
+# define _HAVE_ARCH_CSUM_AND_COPY
+# ifdef CONFIG_X86_32
+# include <asm/checksum_32.h>
+# else
+# include <asm/checksum_64.h>
+# endif
#endif
diff --git a/arch/x86/include/asm/checksum_32.h b/arch/x86/include/asm/checksum_32.h
index 46fc474fd819..17da95387997 100644
--- a/arch/x86/include/asm/checksum_32.h
+++ b/arch/x86/include/asm/checksum_32.h
@@ -1,9 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CHECKSUM_32_H
#define _ASM_X86_CHECKSUM_32_H
#include <linux/in6.h>
-
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
/*
* computes the checksum of a memory block at buff, length len,
@@ -27,9 +27,7 @@ asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum);
* better 64-bit) boundary
*/
-asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
- int len, __wsum sum,
- int *src_err_ptr, int *dst_err_ptr);
+asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst, int len);
/*
* Note: when you get a NULL pointer exception here this means someone
@@ -38,20 +36,23 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
* If you use these functions directly please don't forget the
* access_ok().
*/
-static inline __wsum csum_partial_copy_nocheck(const void *src, void *dst,
- int len, __wsum sum)
+static inline __wsum csum_partial_copy_nocheck(const void *src, void *dst, int len)
{
- return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL);
+ return csum_partial_copy_generic(src, dst, len);
}
-static inline __wsum csum_partial_copy_from_user(const void __user *src,
- void *dst,
- int len, __wsum sum,
- int *err_ptr)
+static inline __wsum csum_and_copy_from_user(const void __user *src,
+ void *dst, int len)
{
+ __wsum ret;
+
might_sleep();
- return csum_partial_copy_generic((__force void *)src, dst,
- len, sum, err_ptr, NULL);
+ if (!user_access_begin(src, len))
+ return 0;
+ ret = csum_partial_copy_generic((__force void *)src, dst, len);
+ user_access_end();
+
+ return ret;
}
/*
@@ -106,8 +107,7 @@ static inline __sum16 csum_fold(__wsum sum)
}
static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
- unsigned short len,
- unsigned short proto,
+ __u32 len, __u8 proto,
__wsum sum)
{
asm("addl %1, %0 ;\n"
@@ -125,8 +125,7 @@ static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
* returns a 16-bit checksum, already complemented
*/
static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
- unsigned short len,
- unsigned short proto,
+ __u32 len, __u8 proto,
__wsum sum)
{
return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
@@ -145,8 +144,7 @@ static inline __sum16 ip_compute_csum(const void *buff, int len)
#define _HAVE_ARCH_IPV6_CSUM
static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
const struct in6_addr *daddr,
- __u32 len, unsigned short proto,
- __wsum sum)
+ __u32 len, __u8 proto, __wsum sum)
{
asm("addl 0(%1), %0 ;\n"
"adcl 4(%1), %0 ;\n"
@@ -170,21 +168,19 @@ static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
/*
* Copy and checksum to user
*/
-#define HAVE_CSUM_COPY_USER
static inline __wsum csum_and_copy_to_user(const void *src,
void __user *dst,
- int len, __wsum sum,
- int *err_ptr)
+ int len)
{
- might_sleep();
- if (access_ok(VERIFY_WRITE, dst, len))
- return csum_partial_copy_generic(src, (__force void *)dst,
- len, sum, NULL, err_ptr);
+ __wsum ret;
- if (len)
- *err_ptr = -EFAULT;
+ might_sleep();
+ if (!user_access_begin(dst, len))
+ return 0;
- return (__force __wsum)-1; /* invalid checksum */
+ ret = csum_partial_copy_generic(src, (__force void *)dst, len);
+ user_access_end();
+ return ret;
}
#endif /* _ASM_X86_CHECKSUM_32_H */
diff --git a/arch/x86/include/asm/checksum_64.h b/arch/x86/include/asm/checksum_64.h
index 9bfdc41629ec..4d4a47a3a8ab 100644
--- a/arch/x86/include/asm/checksum_64.h
+++ b/arch/x86/include/asm/checksum_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CHECKSUM_64_H
#define _ASM_X86_CHECKSUM_64_H
@@ -8,7 +9,6 @@
*/
#include <linux/compiler.h>
-#include <asm/uaccess.h>
#include <asm/byteorder.h>
/**
@@ -84,8 +84,8 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
* 32bit unfolded.
*/
static inline __wsum
-csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
- unsigned short proto, __wsum sum)
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, __u32 len,
+ __u8 proto, __wsum sum)
{
asm(" addl %1, %0\n"
" adcl %2, %0\n"
@@ -110,8 +110,8 @@ csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
* complemented and ready to be filled in.
*/
static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
- unsigned short len,
- unsigned short proto, __wsum sum)
+ __u32 len, __u8 proto,
+ __wsum sum)
{
return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
}
@@ -128,26 +128,12 @@ static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
*/
extern __wsum csum_partial(const void *buff, int len, __wsum sum);
-#define _HAVE_ARCH_COPY_AND_CSUM_FROM_USER 1
-#define HAVE_CSUM_COPY_USER 1
-
-
/* Do not call this directly. Use the wrappers below */
-extern __wsum csum_partial_copy_generic(const void *src, const void *dst,
- int len, __wsum sum,
- int *src_err_ptr, int *dst_err_ptr);
-
-
-extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst,
- int len, __wsum isum, int *errp);
-extern __wsum csum_partial_copy_to_user(const void *src, void __user *dst,
- int len, __wsum isum, int *errp);
-extern __wsum csum_partial_copy_nocheck(const void *src, void *dst,
- int len, __wsum sum);
+extern __visible __wsum csum_partial_copy_generic(const void *src, void *dst, int len);
-/* Old names. To be removed. */
-#define csum_and_copy_to_user csum_partial_copy_to_user
-#define csum_and_copy_from_user csum_partial_copy_from_user
+extern __wsum csum_and_copy_from_user(const void __user *src, void *dst, int len);
+extern __wsum csum_and_copy_to_user(const void *src, void __user *dst, int len);
+extern __wsum csum_partial_copy_nocheck(const void *src, void *dst, int len);
/**
* ip_compute_csum - Compute an 16bit IP checksum.
@@ -177,15 +163,22 @@ struct in6_addr;
#define _HAVE_ARCH_IPV6_CSUM 1
extern __sum16
csum_ipv6_magic(const struct in6_addr *saddr, const struct in6_addr *daddr,
- __u32 len, unsigned short proto, __wsum sum);
+ __u32 len, __u8 proto, __wsum sum);
static inline unsigned add32_with_carry(unsigned a, unsigned b)
{
asm("addl %2,%0\n\t"
"adcl $0,%0"
: "=r" (a)
- : "0" (a), "r" (b));
+ : "0" (a), "rm" (b));
return a;
}
+#define HAVE_ARCH_CSUM_ADD
+static inline __wsum csum_add(__wsum csum, __wsum addend)
+{
+ return (__force __wsum)add32_with_carry((__force unsigned)csum,
+ (__force unsigned)addend);
+}
+
#endif /* _ASM_X86_CHECKSUM_64_H */
diff --git a/arch/x86/include/asm/clocksource.h b/arch/x86/include/asm/clocksource.h
new file mode 100644
index 000000000000..dc9dc7b3911a
--- /dev/null
+++ b/arch/x86/include/asm/clocksource.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* x86-specific clocksource additions */
+
+#ifndef _ASM_X86_CLOCKSOURCE_H
+#define _ASM_X86_CLOCKSOURCE_H
+
+#include <asm/vdso/clocksource.h>
+
+extern unsigned int vclocks_used;
+
+static inline bool vclock_was_used(int vclock)
+{
+ return READ_ONCE(vclocks_used) & (1U << vclock);
+}
+
+static inline void vclocks_set_used(unsigned int which)
+{
+ WRITE_ONCE(vclocks_used, READ_ONCE(vclocks_used) | (1 << which));
+}
+
+#endif /* _ASM_X86_CLOCKSOURCE_H */
diff --git a/arch/x86/include/asm/cmdline.h b/arch/x86/include/asm/cmdline.h
new file mode 100644
index 000000000000..6faaf27e8899
--- /dev/null
+++ b/arch/x86/include/asm/cmdline.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_CMDLINE_H
+#define _ASM_X86_CMDLINE_H
+
+int cmdline_find_option_bool(const char *cmdline_ptr, const char *option);
+int cmdline_find_option(const char *cmdline_ptr, const char *option,
+ char *buffer, int bufsize);
+
+#endif /* _ASM_X86_CMDLINE_H */
diff --git a/arch/x86/include/asm/cmpxchg.h b/arch/x86/include/asm/cmpxchg.h
index a460fa088d4c..540573f515b7 100644
--- a/arch/x86/include/asm/cmpxchg.h
+++ b/arch/x86/include/asm/cmpxchg.h
@@ -1,5 +1,267 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef ASM_X86_CMPXCHG_H
+#define ASM_X86_CMPXCHG_H
+
+#include <linux/compiler.h>
+#include <asm/cpufeatures.h>
+#include <asm/alternative.h> /* Provides LOCK_PREFIX */
+
+/*
+ * Non-existent functions to indicate usage errors at link time
+ * (or compile-time if the compiler implements __compiletime_error().
+ */
+extern void __xchg_wrong_size(void)
+ __compiletime_error("Bad argument size for xchg");
+extern void __cmpxchg_wrong_size(void)
+ __compiletime_error("Bad argument size for cmpxchg");
+extern void __xadd_wrong_size(void)
+ __compiletime_error("Bad argument size for xadd");
+extern void __add_wrong_size(void)
+ __compiletime_error("Bad argument size for add");
+
+/*
+ * Constants for operation sizes. On 32-bit, the 64-bit size it set to
+ * -1 because sizeof will never return -1, thereby making those switch
+ * case statements guaranteed dead code which the compiler will
+ * eliminate, and allowing the "missing symbol in the default case" to
+ * indicate a usage error.
+ */
+#define __X86_CASE_B 1
+#define __X86_CASE_W 2
+#define __X86_CASE_L 4
+#ifdef CONFIG_64BIT
+#define __X86_CASE_Q 8
+#else
+#define __X86_CASE_Q -1 /* sizeof will never return -1 */
+#endif
+
+/*
+ * An exchange-type operation, which takes a value and a pointer, and
+ * returns the old value.
+ */
+#define __xchg_op(ptr, arg, op, lock) \
+ ({ \
+ __typeof__ (*(ptr)) __ret = (arg); \
+ switch (sizeof(*(ptr))) { \
+ case __X86_CASE_B: \
+ asm volatile (lock #op "b %b0, %1\n" \
+ : "+q" (__ret), "+m" (*(ptr)) \
+ : : "memory", "cc"); \
+ break; \
+ case __X86_CASE_W: \
+ asm volatile (lock #op "w %w0, %1\n" \
+ : "+r" (__ret), "+m" (*(ptr)) \
+ : : "memory", "cc"); \
+ break; \
+ case __X86_CASE_L: \
+ asm volatile (lock #op "l %0, %1\n" \
+ : "+r" (__ret), "+m" (*(ptr)) \
+ : : "memory", "cc"); \
+ break; \
+ case __X86_CASE_Q: \
+ asm volatile (lock #op "q %q0, %1\n" \
+ : "+r" (__ret), "+m" (*(ptr)) \
+ : : "memory", "cc"); \
+ break; \
+ default: \
+ __ ## op ## _wrong_size(); \
+ } \
+ __ret; \
+ })
+
+/*
+ * Note: no "lock" prefix even on SMP: xchg always implies lock anyway.
+ * Since this is generally used to protect other memory information, we
+ * use "asm volatile" and "memory" clobbers to prevent gcc from moving
+ * information around.
+ */
+#define arch_xchg(ptr, v) __xchg_op((ptr), (v), xchg, "")
+
+/*
+ * Atomic compare and exchange. Compare OLD with MEM, if identical,
+ * store NEW in MEM. Return the initial value in MEM. Success is
+ * indicated by comparing RETURN with OLD.
+ */
+#define __raw_cmpxchg(ptr, old, new, size, lock) \
+({ \
+ __typeof__(*(ptr)) __ret; \
+ __typeof__(*(ptr)) __old = (old); \
+ __typeof__(*(ptr)) __new = (new); \
+ switch (size) { \
+ case __X86_CASE_B: \
+ { \
+ volatile u8 *__ptr = (volatile u8 *)(ptr); \
+ asm volatile(lock "cmpxchgb %2,%1" \
+ : "=a" (__ret), "+m" (*__ptr) \
+ : "q" (__new), "0" (__old) \
+ : "memory"); \
+ break; \
+ } \
+ case __X86_CASE_W: \
+ { \
+ volatile u16 *__ptr = (volatile u16 *)(ptr); \
+ asm volatile(lock "cmpxchgw %2,%1" \
+ : "=a" (__ret), "+m" (*__ptr) \
+ : "r" (__new), "0" (__old) \
+ : "memory"); \
+ break; \
+ } \
+ case __X86_CASE_L: \
+ { \
+ volatile u32 *__ptr = (volatile u32 *)(ptr); \
+ asm volatile(lock "cmpxchgl %2,%1" \
+ : "=a" (__ret), "+m" (*__ptr) \
+ : "r" (__new), "0" (__old) \
+ : "memory"); \
+ break; \
+ } \
+ case __X86_CASE_Q: \
+ { \
+ volatile u64 *__ptr = (volatile u64 *)(ptr); \
+ asm volatile(lock "cmpxchgq %2,%1" \
+ : "=a" (__ret), "+m" (*__ptr) \
+ : "r" (__new), "0" (__old) \
+ : "memory"); \
+ break; \
+ } \
+ default: \
+ __cmpxchg_wrong_size(); \
+ } \
+ __ret; \
+})
+
+#define __cmpxchg(ptr, old, new, size) \
+ __raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
+
+#define __sync_cmpxchg(ptr, old, new, size) \
+ __raw_cmpxchg((ptr), (old), (new), (size), "lock; ")
+
+#define __cmpxchg_local(ptr, old, new, size) \
+ __raw_cmpxchg((ptr), (old), (new), (size), "")
+
#ifdef CONFIG_X86_32
-# include "cmpxchg_32.h"
+# include <asm/cmpxchg_32.h>
#else
-# include "cmpxchg_64.h"
+# include <asm/cmpxchg_64.h>
#endif
+
+#define arch_cmpxchg(ptr, old, new) \
+ __cmpxchg(ptr, old, new, sizeof(*(ptr)))
+
+#define arch_sync_cmpxchg(ptr, old, new) \
+ __sync_cmpxchg(ptr, old, new, sizeof(*(ptr)))
+
+#define arch_cmpxchg_local(ptr, old, new) \
+ __cmpxchg_local(ptr, old, new, sizeof(*(ptr)))
+
+
+#define __raw_try_cmpxchg(_ptr, _pold, _new, size, lock) \
+({ \
+ bool success; \
+ __typeof__(_ptr) _old = (__typeof__(_ptr))(_pold); \
+ __typeof__(*(_ptr)) __old = *_old; \
+ __typeof__(*(_ptr)) __new = (_new); \
+ switch (size) { \
+ case __X86_CASE_B: \
+ { \
+ volatile u8 *__ptr = (volatile u8 *)(_ptr); \
+ asm volatile(lock "cmpxchgb %[new], %[ptr]" \
+ CC_SET(z) \
+ : CC_OUT(z) (success), \
+ [ptr] "+m" (*__ptr), \
+ [old] "+a" (__old) \
+ : [new] "q" (__new) \
+ : "memory"); \
+ break; \
+ } \
+ case __X86_CASE_W: \
+ { \
+ volatile u16 *__ptr = (volatile u16 *)(_ptr); \
+ asm volatile(lock "cmpxchgw %[new], %[ptr]" \
+ CC_SET(z) \
+ : CC_OUT(z) (success), \
+ [ptr] "+m" (*__ptr), \
+ [old] "+a" (__old) \
+ : [new] "r" (__new) \
+ : "memory"); \
+ break; \
+ } \
+ case __X86_CASE_L: \
+ { \
+ volatile u32 *__ptr = (volatile u32 *)(_ptr); \
+ asm volatile(lock "cmpxchgl %[new], %[ptr]" \
+ CC_SET(z) \
+ : CC_OUT(z) (success), \
+ [ptr] "+m" (*__ptr), \
+ [old] "+a" (__old) \
+ : [new] "r" (__new) \
+ : "memory"); \
+ break; \
+ } \
+ case __X86_CASE_Q: \
+ { \
+ volatile u64 *__ptr = (volatile u64 *)(_ptr); \
+ asm volatile(lock "cmpxchgq %[new], %[ptr]" \
+ CC_SET(z) \
+ : CC_OUT(z) (success), \
+ [ptr] "+m" (*__ptr), \
+ [old] "+a" (__old) \
+ : [new] "r" (__new) \
+ : "memory"); \
+ break; \
+ } \
+ default: \
+ __cmpxchg_wrong_size(); \
+ } \
+ if (unlikely(!success)) \
+ *_old = __old; \
+ likely(success); \
+})
+
+#define __try_cmpxchg(ptr, pold, new, size) \
+ __raw_try_cmpxchg((ptr), (pold), (new), (size), LOCK_PREFIX)
+
+#define __try_cmpxchg_local(ptr, pold, new, size) \
+ __raw_try_cmpxchg((ptr), (pold), (new), (size), "")
+
+#define arch_try_cmpxchg(ptr, pold, new) \
+ __try_cmpxchg((ptr), (pold), (new), sizeof(*(ptr)))
+
+#define arch_try_cmpxchg_local(ptr, pold, new) \
+ __try_cmpxchg_local((ptr), (pold), (new), sizeof(*(ptr)))
+
+/*
+ * xadd() adds "inc" to "*ptr" and atomically returns the previous
+ * value of "*ptr".
+ *
+ * xadd() is locked when multiple CPUs are online
+ */
+#define __xadd(ptr, inc, lock) __xchg_op((ptr), (inc), xadd, lock)
+#define xadd(ptr, inc) __xadd((ptr), (inc), LOCK_PREFIX)
+
+#define __cmpxchg_double(pfx, p1, p2, o1, o2, n1, n2) \
+({ \
+ bool __ret; \
+ __typeof__(*(p1)) __old1 = (o1), __new1 = (n1); \
+ __typeof__(*(p2)) __old2 = (o2), __new2 = (n2); \
+ BUILD_BUG_ON(sizeof(*(p1)) != sizeof(long)); \
+ BUILD_BUG_ON(sizeof(*(p2)) != sizeof(long)); \
+ VM_BUG_ON((unsigned long)(p1) % (2 * sizeof(long))); \
+ VM_BUG_ON((unsigned long)((p1) + 1) != (unsigned long)(p2)); \
+ asm volatile(pfx "cmpxchg%c5b %1" \
+ CC_SET(e) \
+ : CC_OUT(e) (__ret), \
+ "+m" (*(p1)), "+m" (*(p2)), \
+ "+a" (__old1), "+d" (__old2) \
+ : "i" (2 * sizeof(long)), \
+ "b" (__new1), "c" (__new2)); \
+ __ret; \
+})
+
+#define arch_cmpxchg_double(p1, p2, o1, o2, n1, n2) \
+ __cmpxchg_double(LOCK_PREFIX, p1, p2, o1, o2, n1, n2)
+
+#define arch_cmpxchg_double_local(p1, p2, o1, o2, n1, n2) \
+ __cmpxchg_double(, p1, p2, o1, o2, n1, n2)
+
+#endif /* ASM_X86_CMPXCHG_H */
diff --git a/arch/x86/include/asm/cmpxchg_32.h b/arch/x86/include/asm/cmpxchg_32.h
index 284a6e8f7ce1..6ba80ce9438d 100644
--- a/arch/x86/include/asm/cmpxchg_32.h
+++ b/arch/x86/include/asm/cmpxchg_32.h
@@ -1,164 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CMPXCHG_32_H
#define _ASM_X86_CMPXCHG_32_H
-#include <linux/bitops.h> /* for LOCK_PREFIX */
-
/*
- * Note: if you use set64_bit(), __cmpxchg64(), or their variants, you
+ * Note: if you use set64_bit(), __cmpxchg64(), or their variants,
* you need to test for the feature in boot_cpu_data.
*/
-extern void __xchg_wrong_size(void);
-
-/*
- * Note: no "lock" prefix even on SMP: xchg always implies lock anyway.
- * Since this is generally used to protect other memory information, we
- * use "asm volatile" and "memory" clobbers to prevent gcc from moving
- * information around.
- */
-#define __xchg(x, ptr, size) \
-({ \
- __typeof(*(ptr)) __x = (x); \
- switch (size) { \
- case 1: \
- { \
- volatile u8 *__ptr = (volatile u8 *)(ptr); \
- asm volatile("xchgb %0,%1" \
- : "=q" (__x), "+m" (*__ptr) \
- : "0" (__x) \
- : "memory"); \
- break; \
- } \
- case 2: \
- { \
- volatile u16 *__ptr = (volatile u16 *)(ptr); \
- asm volatile("xchgw %0,%1" \
- : "=r" (__x), "+m" (*__ptr) \
- : "0" (__x) \
- : "memory"); \
- break; \
- } \
- case 4: \
- { \
- volatile u32 *__ptr = (volatile u32 *)(ptr); \
- asm volatile("xchgl %0,%1" \
- : "=r" (__x), "+m" (*__ptr) \
- : "0" (__x) \
- : "memory"); \
- break; \
- } \
- default: \
- __xchg_wrong_size(); \
- } \
- __x; \
-})
-
-#define xchg(ptr, v) \
- __xchg((v), (ptr), sizeof(*ptr))
-
-/*
- * CMPXCHG8B only writes to the target if we had the previous
- * value in registers, otherwise it acts as a read and gives us the
- * "new previous" value. That is why there is a loop. Preloading
- * EDX:EAX is a performance optimization: in the common case it means
- * we need only one locked operation.
- *
- * A SIMD/3DNOW!/MMX/FPU 64-bit store here would require at the very
- * least an FPU save and/or %cr0.ts manipulation.
- *
- * cmpxchg8b must be used with the lock prefix here to allow the
- * instruction to be executed atomically. We need to have the reader
- * side to see the coherent 64bit value.
- */
-static inline void set_64bit(volatile u64 *ptr, u64 value)
-{
- u32 low = value;
- u32 high = value >> 32;
- u64 prev = *ptr;
-
- asm volatile("\n1:\t"
- LOCK_PREFIX "cmpxchg8b %0\n\t"
- "jnz 1b"
- : "=m" (*ptr), "+A" (prev)
- : "b" (low), "c" (high)
- : "memory");
-}
-
-extern void __cmpxchg_wrong_size(void);
-
-/*
- * Atomic compare and exchange. Compare OLD with MEM, if identical,
- * store NEW in MEM. Return the initial value in MEM. Success is
- * indicated by comparing RETURN with OLD.
- */
-#define __raw_cmpxchg(ptr, old, new, size, lock) \
-({ \
- __typeof__(*(ptr)) __ret; \
- __typeof__(*(ptr)) __old = (old); \
- __typeof__(*(ptr)) __new = (new); \
- switch (size) { \
- case 1: \
- { \
- volatile u8 *__ptr = (volatile u8 *)(ptr); \
- asm volatile(lock "cmpxchgb %2,%1" \
- : "=a" (__ret), "+m" (*__ptr) \
- : "q" (__new), "0" (__old) \
- : "memory"); \
- break; \
- } \
- case 2: \
- { \
- volatile u16 *__ptr = (volatile u16 *)(ptr); \
- asm volatile(lock "cmpxchgw %2,%1" \
- : "=a" (__ret), "+m" (*__ptr) \
- : "r" (__new), "0" (__old) \
- : "memory"); \
- break; \
- } \
- case 4: \
- { \
- volatile u32 *__ptr = (volatile u32 *)(ptr); \
- asm volatile(lock "cmpxchgl %2,%1" \
- : "=a" (__ret), "+m" (*__ptr) \
- : "r" (__new), "0" (__old) \
- : "memory"); \
- break; \
- } \
- default: \
- __cmpxchg_wrong_size(); \
- } \
- __ret; \
-})
-
-#define __cmpxchg(ptr, old, new, size) \
- __raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
-
-#define __sync_cmpxchg(ptr, old, new, size) \
- __raw_cmpxchg((ptr), (old), (new), (size), "lock; ")
-
-#define __cmpxchg_local(ptr, old, new, size) \
- __raw_cmpxchg((ptr), (old), (new), (size), "")
-
-#ifdef CONFIG_X86_CMPXCHG
-#define __HAVE_ARCH_CMPXCHG 1
-
-#define cmpxchg(ptr, old, new) \
- __cmpxchg((ptr), (old), (new), sizeof(*ptr))
-
-#define sync_cmpxchg(ptr, old, new) \
- __sync_cmpxchg((ptr), (old), (new), sizeof(*ptr))
-
-#define cmpxchg_local(ptr, old, new) \
- __cmpxchg_local((ptr), (old), (new), sizeof(*ptr))
-#endif
-
#ifdef CONFIG_X86_CMPXCHG64
-#define cmpxchg64(ptr, o, n) \
+#define arch_cmpxchg64(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg64((ptr), (unsigned long long)(o), \
(unsigned long long)(n)))
-#define cmpxchg64_local(ptr, o, n) \
+#define arch_cmpxchg64_local(ptr, o, n) \
((__typeof__(*(ptr)))__cmpxchg64_local((ptr), (unsigned long long)(o), \
(unsigned long long)(n)))
+#define arch_try_cmpxchg64(ptr, po, n) \
+ __try_cmpxchg64((ptr), (unsigned long long *)(po), \
+ (unsigned long long)(n))
#endif
static inline u64 __cmpxchg64(volatile u64 *ptr, u64 old, u64 new)
@@ -187,58 +45,23 @@ static inline u64 __cmpxchg64_local(volatile u64 *ptr, u64 old, u64 new)
return prev;
}
-#ifndef CONFIG_X86_CMPXCHG
-/*
- * Building a kernel capable running on 80386. It may be necessary to
- * simulate the cmpxchg on the 80386 CPU. For that purpose we define
- * a function for each of the sizes we support.
- */
-
-extern unsigned long cmpxchg_386_u8(volatile void *, u8, u8);
-extern unsigned long cmpxchg_386_u16(volatile void *, u16, u16);
-extern unsigned long cmpxchg_386_u32(volatile void *, u32, u32);
-
-static inline unsigned long cmpxchg_386(volatile void *ptr, unsigned long old,
- unsigned long new, int size)
+static inline bool __try_cmpxchg64(volatile u64 *ptr, u64 *pold, u64 new)
{
- switch (size) {
- case 1:
- return cmpxchg_386_u8(ptr, old, new);
- case 2:
- return cmpxchg_386_u16(ptr, old, new);
- case 4:
- return cmpxchg_386_u32(ptr, old, new);
- }
- return old;
-}
+ bool success;
+ u64 old = *pold;
+ asm volatile(LOCK_PREFIX "cmpxchg8b %[ptr]"
+ CC_SET(z)
+ : CC_OUT(z) (success),
+ [ptr] "+m" (*ptr),
+ "+A" (old)
+ : "b" ((u32)new),
+ "c" ((u32)(new >> 32))
+ : "memory");
-#define cmpxchg(ptr, o, n) \
-({ \
- __typeof__(*(ptr)) __ret; \
- if (likely(boot_cpu_data.x86 > 3)) \
- __ret = (__typeof__(*(ptr)))__cmpxchg((ptr), \
- (unsigned long)(o), (unsigned long)(n), \
- sizeof(*(ptr))); \
- else \
- __ret = (__typeof__(*(ptr)))cmpxchg_386((ptr), \
- (unsigned long)(o), (unsigned long)(n), \
- sizeof(*(ptr))); \
- __ret; \
-})
-#define cmpxchg_local(ptr, o, n) \
-({ \
- __typeof__(*(ptr)) __ret; \
- if (likely(boot_cpu_data.x86 > 3)) \
- __ret = (__typeof__(*(ptr)))__cmpxchg_local((ptr), \
- (unsigned long)(o), (unsigned long)(n), \
- sizeof(*(ptr))); \
- else \
- __ret = (__typeof__(*(ptr)))cmpxchg_386((ptr), \
- (unsigned long)(o), (unsigned long)(n), \
- sizeof(*(ptr))); \
- __ret; \
-})
-#endif
+ if (unlikely(!success))
+ *pold = old;
+ return success;
+}
#ifndef CONFIG_X86_CMPXCHG64
/*
@@ -246,7 +69,7 @@ static inline unsigned long cmpxchg_386(volatile void *ptr, unsigned long old,
* to simulate the cmpxchg8b on the 80386 and 80486 CPU.
*/
-#define cmpxchg64(ptr, o, n) \
+#define arch_cmpxchg64(ptr, o, n) \
({ \
__typeof__(*(ptr)) __ret; \
__typeof__(*(ptr)) __old = (o); \
@@ -263,7 +86,7 @@ static inline unsigned long cmpxchg_386(volatile void *ptr, unsigned long old,
__ret; })
-#define cmpxchg64_local(ptr, o, n) \
+#define arch_cmpxchg64_local(ptr, o, n) \
({ \
__typeof__(*(ptr)) __ret; \
__typeof__(*(ptr)) __old = (o); \
@@ -280,4 +103,6 @@ static inline unsigned long cmpxchg_386(volatile void *ptr, unsigned long old,
#endif
+#define system_has_cmpxchg_double() boot_cpu_has(X86_FEATURE_CX8)
+
#endif /* _ASM_X86_CMPXCHG_32_H */
diff --git a/arch/x86/include/asm/cmpxchg_64.h b/arch/x86/include/asm/cmpxchg_64.h
index 423ae58aa020..0d3beb27b7fe 100644
--- a/arch/x86/include/asm/cmpxchg_64.h
+++ b/arch/x86/include/asm/cmpxchg_64.h
@@ -1,154 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CMPXCHG_64_H
#define _ASM_X86_CMPXCHG_64_H
-#include <asm/alternative.h> /* Provides LOCK_PREFIX */
-
-static inline void set_64bit(volatile u64 *ptr, u64 val)
-{
- *ptr = val;
-}
-
-extern void __xchg_wrong_size(void);
-extern void __cmpxchg_wrong_size(void);
-
-/*
- * Note: no "lock" prefix even on SMP: xchg always implies lock anyway.
- * Since this is generally used to protect other memory information, we
- * use "asm volatile" and "memory" clobbers to prevent gcc from moving
- * information around.
- */
-#define __xchg(x, ptr, size) \
-({ \
- __typeof(*(ptr)) __x = (x); \
- switch (size) { \
- case 1: \
- { \
- volatile u8 *__ptr = (volatile u8 *)(ptr); \
- asm volatile("xchgb %0,%1" \
- : "=q" (__x), "+m" (*__ptr) \
- : "0" (__x) \
- : "memory"); \
- break; \
- } \
- case 2: \
- { \
- volatile u16 *__ptr = (volatile u16 *)(ptr); \
- asm volatile("xchgw %0,%1" \
- : "=r" (__x), "+m" (*__ptr) \
- : "0" (__x) \
- : "memory"); \
- break; \
- } \
- case 4: \
- { \
- volatile u32 *__ptr = (volatile u32 *)(ptr); \
- asm volatile("xchgl %0,%1" \
- : "=r" (__x), "+m" (*__ptr) \
- : "0" (__x) \
- : "memory"); \
- break; \
- } \
- case 8: \
- { \
- volatile u64 *__ptr = (volatile u64 *)(ptr); \
- asm volatile("xchgq %0,%1" \
- : "=r" (__x), "+m" (*__ptr) \
- : "0" (__x) \
- : "memory"); \
- break; \
- } \
- default: \
- __xchg_wrong_size(); \
- } \
- __x; \
-})
-
-#define xchg(ptr, v) \
- __xchg((v), (ptr), sizeof(*ptr))
-
-#define __HAVE_ARCH_CMPXCHG 1
-
-/*
- * Atomic compare and exchange. Compare OLD with MEM, if identical,
- * store NEW in MEM. Return the initial value in MEM. Success is
- * indicated by comparing RETURN with OLD.
- */
-#define __raw_cmpxchg(ptr, old, new, size, lock) \
+#define arch_cmpxchg64(ptr, o, n) \
({ \
- __typeof__(*(ptr)) __ret; \
- __typeof__(*(ptr)) __old = (old); \
- __typeof__(*(ptr)) __new = (new); \
- switch (size) { \
- case 1: \
- { \
- volatile u8 *__ptr = (volatile u8 *)(ptr); \
- asm volatile(lock "cmpxchgb %2,%1" \
- : "=a" (__ret), "+m" (*__ptr) \
- : "q" (__new), "0" (__old) \
- : "memory"); \
- break; \
- } \
- case 2: \
- { \
- volatile u16 *__ptr = (volatile u16 *)(ptr); \
- asm volatile(lock "cmpxchgw %2,%1" \
- : "=a" (__ret), "+m" (*__ptr) \
- : "r" (__new), "0" (__old) \
- : "memory"); \
- break; \
- } \
- case 4: \
- { \
- volatile u32 *__ptr = (volatile u32 *)(ptr); \
- asm volatile(lock "cmpxchgl %2,%1" \
- : "=a" (__ret), "+m" (*__ptr) \
- : "r" (__new), "0" (__old) \
- : "memory"); \
- break; \
- } \
- case 8: \
- { \
- volatile u64 *__ptr = (volatile u64 *)(ptr); \
- asm volatile(lock "cmpxchgq %2,%1" \
- : "=a" (__ret), "+m" (*__ptr) \
- : "r" (__new), "0" (__old) \
- : "memory"); \
- break; \
- } \
- default: \
- __cmpxchg_wrong_size(); \
- } \
- __ret; \
+ BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
+ arch_cmpxchg((ptr), (o), (n)); \
})
-#define __cmpxchg(ptr, old, new, size) \
- __raw_cmpxchg((ptr), (old), (new), (size), LOCK_PREFIX)
-
-#define __sync_cmpxchg(ptr, old, new, size) \
- __raw_cmpxchg((ptr), (old), (new), (size), "lock; ")
-
-#define __cmpxchg_local(ptr, old, new, size) \
- __raw_cmpxchg((ptr), (old), (new), (size), "")
-
-#define cmpxchg(ptr, old, new) \
- __cmpxchg((ptr), (old), (new), sizeof(*ptr))
-
-#define sync_cmpxchg(ptr, old, new) \
- __sync_cmpxchg((ptr), (old), (new), sizeof(*ptr))
-
-#define cmpxchg_local(ptr, old, new) \
- __cmpxchg_local((ptr), (old), (new), sizeof(*ptr))
-
-#define cmpxchg64(ptr, o, n) \
+#define arch_cmpxchg64_local(ptr, o, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
- cmpxchg((ptr), (o), (n)); \
+ arch_cmpxchg_local((ptr), (o), (n)); \
})
-#define cmpxchg64_local(ptr, o, n) \
+#define arch_try_cmpxchg64(ptr, po, n) \
({ \
BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
- cmpxchg_local((ptr), (o), (n)); \
+ arch_try_cmpxchg((ptr), (po), (n)); \
})
+#define system_has_cmpxchg_double() boot_cpu_has(X86_FEATURE_CX16)
+
#endif /* _ASM_X86_CMPXCHG_64_H */
diff --git a/arch/x86/include/asm/coco.h b/arch/x86/include/asm/coco.h
new file mode 100644
index 000000000000..eb08796002f3
--- /dev/null
+++ b/arch/x86/include/asm/coco.h
@@ -0,0 +1,48 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_COCO_H
+#define _ASM_X86_COCO_H
+
+#include <asm/types.h>
+
+enum cc_vendor {
+ CC_VENDOR_NONE,
+ CC_VENDOR_AMD,
+ CC_VENDOR_INTEL,
+};
+
+#ifdef CONFIG_ARCH_HAS_CC_PLATFORM
+extern enum cc_vendor cc_vendor;
+
+static inline enum cc_vendor cc_get_vendor(void)
+{
+ return cc_vendor;
+}
+
+static inline void cc_set_vendor(enum cc_vendor vendor)
+{
+ cc_vendor = vendor;
+}
+
+void cc_set_mask(u64 mask);
+u64 cc_mkenc(u64 val);
+u64 cc_mkdec(u64 val);
+#else
+static inline enum cc_vendor cc_get_vendor(void)
+{
+ return CC_VENDOR_NONE;
+}
+
+static inline void cc_set_vendor(enum cc_vendor vendor) { }
+
+static inline u64 cc_mkenc(u64 val)
+{
+ return val;
+}
+
+static inline u64 cc_mkdec(u64 val)
+{
+ return val;
+}
+#endif
+
+#endif /* _ASM_X86_COCO_H */
diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h
index 1d9cd27c2920..b1221da477b7 100644
--- a/arch/x86/include/asm/compat.h
+++ b/arch/x86/include/asm/compat.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_COMPAT_H
#define _ASM_X86_COMPAT_H
@@ -6,60 +7,40 @@
*/
#include <linux/types.h>
#include <linux/sched.h>
+#include <linux/sched/task_stack.h>
+#include <asm/processor.h>
#include <asm/user32.h>
+#include <asm/unistd.h>
-#define COMPAT_USER_HZ 100
-#define COMPAT_UTS_MACHINE "i686\0\0"
+#define compat_mode_t compat_mode_t
+typedef u16 compat_mode_t;
-typedef u32 compat_size_t;
-typedef s32 compat_ssize_t;
-typedef s32 compat_time_t;
-typedef s32 compat_clock_t;
-typedef s32 compat_pid_t;
+#define __compat_uid_t __compat_uid_t
typedef u16 __compat_uid_t;
typedef u16 __compat_gid_t;
-typedef u32 __compat_uid32_t;
-typedef u32 __compat_gid32_t;
-typedef u16 compat_mode_t;
-typedef u32 compat_ino_t;
+
+#define compat_dev_t compat_dev_t
typedef u16 compat_dev_t;
-typedef s32 compat_off_t;
-typedef s64 compat_loff_t;
-typedef u16 compat_nlink_t;
-typedef u16 compat_ipc_pid_t;
-typedef s32 compat_daddr_t;
-typedef u32 compat_caddr_t;
-typedef __kernel_fsid_t compat_fsid_t;
-typedef s32 compat_timer_t;
-typedef s32 compat_key_t;
-
-typedef s32 compat_int_t;
-typedef s32 compat_long_t;
-typedef s64 __attribute__((aligned(4))) compat_s64;
-typedef u32 compat_uint_t;
-typedef u32 compat_ulong_t;
-typedef u64 __attribute__((aligned(4))) compat_u64;
-
-struct compat_timespec {
- compat_time_t tv_sec;
- s32 tv_nsec;
-};
-struct compat_timeval {
- compat_time_t tv_sec;
- s32 tv_usec;
-};
+#define compat_ipc_pid_t compat_ipc_pid_t
+typedef u16 compat_ipc_pid_t;
+
+#define compat_statfs compat_statfs
+
+#include <asm-generic/compat.h>
+
+#define COMPAT_UTS_MACHINE "i686\0\0"
+
+typedef u16 compat_nlink_t;
struct compat_stat {
- compat_dev_t st_dev;
- u16 __pad1;
+ u32 st_dev;
compat_ino_t st_ino;
compat_mode_t st_mode;
compat_nlink_t st_nlink;
__compat_uid_t st_uid;
__compat_gid_t st_gid;
- compat_dev_t st_rdev;
- u16 __pad2;
+ u32 st_rdev;
u32 st_size;
u32 st_blksize;
u32 st_blocks;
@@ -73,29 +54,11 @@ struct compat_stat {
u32 __unused5;
};
-struct compat_flock {
- short l_type;
- short l_whence;
- compat_off_t l_start;
- compat_off_t l_len;
- compat_pid_t l_pid;
-};
-
-#define F_GETLK64 12 /* using 'struct flock64' */
-#define F_SETLK64 13
-#define F_SETLKW64 14
-
/*
- * IA32 uses 4 byte alignment for 64 bit quantities,
- * so we need to pack this structure.
+ * IA32 uses 4 byte alignment for 64 bit quantities, so we need to pack the
+ * compat flock64 structure.
*/
-struct compat_flock64 {
- short l_type;
- short l_whence;
- compat_loff_t l_start;
- compat_loff_t l_len;
- compat_pid_t l_pid;
-} __attribute__((packed));
+#define __ARCH_NEED_COMPAT_FLOCK64_PACKED
struct compat_statfs {
int f_type;
@@ -108,112 +71,44 @@ struct compat_statfs {
compat_fsid_t f_fsid;
int f_namelen; /* SunOS ignores this field. */
int f_frsize;
- int f_spare[5];
+ int f_flags;
+ int f_spare[4];
};
-#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
-#define COMPAT_RLIM_INFINITY 0xffffffff
-
-typedef u32 compat_old_sigset_t; /* at least 32 bits */
-
-#define _COMPAT_NSIG 64
-#define _COMPAT_NSIG_BPW 32
-
-typedef u32 compat_sigset_word;
+#ifdef CONFIG_X86_X32_ABI
+#define COMPAT_USE_64BIT_TIME \
+ (!!(task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT))
+#endif
-#define COMPAT_OFF_T_MAX 0x7fffffff
-#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
-
-struct compat_ipc64_perm {
- compat_key_t key;
- __compat_uid32_t uid;
- __compat_gid32_t gid;
- __compat_uid32_t cuid;
- __compat_gid32_t cgid;
- unsigned short mode;
- unsigned short __pad1;
- unsigned short seq;
- unsigned short __pad2;
- compat_ulong_t unused1;
- compat_ulong_t unused2;
-};
-
-struct compat_semid64_ds {
- struct compat_ipc64_perm sem_perm;
- compat_time_t sem_otime;
- compat_ulong_t __unused1;
- compat_time_t sem_ctime;
- compat_ulong_t __unused2;
- compat_ulong_t sem_nsems;
- compat_ulong_t __unused3;
- compat_ulong_t __unused4;
-};
-
-struct compat_msqid64_ds {
- struct compat_ipc64_perm msg_perm;
- compat_time_t msg_stime;
- compat_ulong_t __unused1;
- compat_time_t msg_rtime;
- compat_ulong_t __unused2;
- compat_time_t msg_ctime;
- compat_ulong_t __unused3;
- compat_ulong_t msg_cbytes;
- compat_ulong_t msg_qnum;
- compat_ulong_t msg_qbytes;
- compat_pid_t msg_lspid;
- compat_pid_t msg_lrpid;
- compat_ulong_t __unused4;
- compat_ulong_t __unused5;
-};
-
-struct compat_shmid64_ds {
- struct compat_ipc64_perm shm_perm;
- compat_size_t shm_segsz;
- compat_time_t shm_atime;
- compat_ulong_t __unused1;
- compat_time_t shm_dtime;
- compat_ulong_t __unused2;
- compat_time_t shm_ctime;
- compat_ulong_t __unused3;
- compat_pid_t shm_cpid;
- compat_pid_t shm_lpid;
- compat_ulong_t shm_nattch;
- compat_ulong_t __unused4;
- compat_ulong_t __unused5;
-};
-
-/*
- * The type of struct elf_prstatus.pr_reg in compatible core dumps.
- */
-typedef struct user_regs_struct32 compat_elf_gregset_t;
-
-/*
- * A pointer passed in from user mode. This should not
- * be used for syscall parameters, just declare them
- * as pointers because the syscall entry code will have
- * appropriately converted them already.
- */
-typedef u32 compat_uptr_t;
-
-static inline void __user *compat_ptr(compat_uptr_t uptr)
+static inline bool in_x32_syscall(void)
{
- return (void __user *)(unsigned long)uptr;
+#ifdef CONFIG_X86_X32_ABI
+ if (task_pt_regs(current)->orig_ax & __X32_SYSCALL_BIT)
+ return true;
+#endif
+ return false;
}
-static inline compat_uptr_t ptr_to_compat(void __user *uptr)
+static inline bool in_32bit_syscall(void)
{
- return (u32)(unsigned long)uptr;
+ return in_ia32_syscall() || in_x32_syscall();
}
-static inline void __user *arch_compat_alloc_user_space(long len)
+#ifdef CONFIG_COMPAT
+static inline bool in_compat_syscall(void)
{
- struct pt_regs *regs = task_pt_regs(current);
- return (void __user *)regs->sp - len;
+ return in_32bit_syscall();
}
+#define in_compat_syscall in_compat_syscall /* override the generic impl */
+#define compat_need_64bit_alignment_fixup in_ia32_syscall
+#endif
-static inline int is_compat_task(void)
-{
- return current_thread_info()->status & TS_COMPAT;
-}
+struct compat_siginfo;
+
+#ifdef CONFIG_X86_X32_ABI
+int copy_siginfo_to_user32(struct compat_siginfo __user *to,
+ const kernel_siginfo_t *from);
+#define copy_siginfo_to_user32 copy_siginfo_to_user32
+#endif /* CONFIG_X86_X32_ABI */
#endif /* _ASM_X86_COMPAT_H */
diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h
index 4564c8e28a33..78796b98a544 100644
--- a/arch/x86/include/asm/cpu.h
+++ b/arch/x86/include/asm/cpu.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CPU_H
#define _ASM_X86_CPU_H
@@ -6,6 +7,7 @@
#include <linux/topology.h>
#include <linux/nodemask.h>
#include <linux/percpu.h>
+#include <asm/ibt.h>
#ifdef CONFIG_SMP
@@ -16,8 +18,8 @@ extern void prefill_possible_map(void);
static inline void prefill_possible_map(void) {}
#define cpu_physical_id(cpu) boot_cpu_physical_apicid
+#define cpu_acpi_id(cpu) 0
#define safe_smp_processor_id() 0
-#define stack_smp_processor_id() 0
#endif /* CONFIG_SMP */
@@ -28,10 +30,72 @@ struct x86_cpu {
#ifdef CONFIG_HOTPLUG_CPU
extern int arch_register_cpu(int num);
extern void arch_unregister_cpu(int);
+extern void start_cpu0(void);
+#ifdef CONFIG_DEBUG_HOTPLUG_CPU0
+extern int _debug_hotplug_cpu(int cpu, int action);
+#endif
#endif
-DECLARE_PER_CPU(int, cpu_state);
+extern void ap_init_aperfmperf(void);
int mwait_usable(const struct cpuinfo_x86 *);
+unsigned int x86_family(unsigned int sig);
+unsigned int x86_model(unsigned int sig);
+unsigned int x86_stepping(unsigned int sig);
+#ifdef CONFIG_CPU_SUP_INTEL
+extern void __init sld_setup(struct cpuinfo_x86 *c);
+extern bool handle_user_split_lock(struct pt_regs *regs, long error_code);
+extern bool handle_guest_split_lock(unsigned long ip);
+extern void handle_bus_lock(struct pt_regs *regs);
+u8 get_this_hybrid_cpu_type(void);
+#else
+static inline void __init sld_setup(struct cpuinfo_x86 *c) {}
+static inline bool handle_user_split_lock(struct pt_regs *regs, long error_code)
+{
+ return false;
+}
+
+static inline bool handle_guest_split_lock(unsigned long ip)
+{
+ return false;
+}
+
+static inline void handle_bus_lock(struct pt_regs *regs) {}
+
+static inline u8 get_this_hybrid_cpu_type(void)
+{
+ return 0;
+}
+#endif
+#ifdef CONFIG_IA32_FEAT_CTL
+void init_ia32_feat_ctl(struct cpuinfo_x86 *c);
+#else
+static inline void init_ia32_feat_ctl(struct cpuinfo_x86 *c) {}
+#endif
+
+extern __noendbr void cet_disable(void);
+
+struct ucode_cpu_info;
+
+int intel_cpu_collect_info(struct ucode_cpu_info *uci);
+
+static inline bool intel_cpu_signatures_match(unsigned int s1, unsigned int p1,
+ unsigned int s2, unsigned int p2)
+{
+ if (s1 != s2)
+ return false;
+
+ /* Processor flags are either both 0 ... */
+ if (!p1 && !p2)
+ return true;
+
+ /* ... or they intersect. */
+ return p1 & p2;
+}
+
+extern u64 x86_read_arch_cap_msr(void);
+int intel_find_matching_signature(void *mc, unsigned int csig, int cpf);
+int intel_microcode_sanity_check(void *mc, bool print_err, int hdr_type);
+
#endif /* _ASM_X86_CPU_H */
diff --git a/arch/x86/include/asm/cpu_device_id.h b/arch/x86/include/asm/cpu_device_id.h
new file mode 100644
index 000000000000..eb8fcede9e3b
--- /dev/null
+++ b/arch/x86/include/asm/cpu_device_id.h
@@ -0,0 +1,196 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_CPU_DEVICE_ID
+#define _ASM_X86_CPU_DEVICE_ID
+
+/*
+ * Declare drivers belonging to specific x86 CPUs
+ * Similar in spirit to pci_device_id and related PCI functions
+ *
+ * The wildcard initializers are in mod_devicetable.h because
+ * file2alias needs them. Sigh.
+ */
+#include <linux/mod_devicetable.h>
+/* Get the INTEL_FAM* model defines */
+#include <asm/intel-family.h>
+/* And the X86_VENDOR_* ones */
+#include <asm/processor.h>
+
+/* Centaur FAM6 models */
+#define X86_CENTAUR_FAM6_C7_A 0xa
+#define X86_CENTAUR_FAM6_C7_D 0xd
+#define X86_CENTAUR_FAM6_NANO 0xf
+
+#define X86_STEPPINGS(mins, maxs) GENMASK(maxs, mins)
+/**
+ * X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE - Base macro for CPU matching
+ * @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
+ * The name is expanded to X86_VENDOR_@_vendor
+ * @_family: The family number or X86_FAMILY_ANY
+ * @_model: The model number, model constant or X86_MODEL_ANY
+ * @_steppings: Bitmask for steppings, stepping constant or X86_STEPPING_ANY
+ * @_feature: A X86_FEATURE bit or X86_FEATURE_ANY
+ * @_data: Driver specific data or NULL. The internal storage
+ * format is unsigned long. The supplied value, pointer
+ * etc. is casted to unsigned long internally.
+ *
+ * Use only if you need all selectors. Otherwise use one of the shorter
+ * macros of the X86_MATCH_* family. If there is no matching shorthand
+ * macro, consider to add one. If you really need to wrap one of the macros
+ * into another macro at the usage site for good reasons, then please
+ * start this local macro with X86_MATCH to allow easy grepping.
+ */
+#define X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(_vendor, _family, _model, \
+ _steppings, _feature, _data) { \
+ .vendor = X86_VENDOR_##_vendor, \
+ .family = _family, \
+ .model = _model, \
+ .steppings = _steppings, \
+ .feature = _feature, \
+ .driver_data = (unsigned long) _data \
+}
+
+/**
+ * X86_MATCH_VENDOR_FAM_MODEL_FEATURE - Macro for CPU matching
+ * @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
+ * The name is expanded to X86_VENDOR_@_vendor
+ * @_family: The family number or X86_FAMILY_ANY
+ * @_model: The model number, model constant or X86_MODEL_ANY
+ * @_feature: A X86_FEATURE bit or X86_FEATURE_ANY
+ * @_data: Driver specific data or NULL. The internal storage
+ * format is unsigned long. The supplied value, pointer
+ * etc. is casted to unsigned long internally.
+ *
+ * The steppings arguments of X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE() is
+ * set to wildcards.
+ */
+#define X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, feature, data) \
+ X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(vendor, family, model, \
+ X86_STEPPING_ANY, feature, data)
+
+/**
+ * X86_MATCH_VENDOR_FAM_FEATURE - Macro for matching vendor, family and CPU feature
+ * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
+ * The name is expanded to X86_VENDOR_@vendor
+ * @family: The family number or X86_FAMILY_ANY
+ * @feature: A X86_FEATURE bit
+ * @data: Driver specific data or NULL. The internal storage
+ * format is unsigned long. The supplied value, pointer
+ * etc. is casted to unsigned long internally.
+ *
+ * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are
+ * set to wildcards.
+ */
+#define X86_MATCH_VENDOR_FAM_FEATURE(vendor, family, feature, data) \
+ X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, \
+ X86_MODEL_ANY, feature, data)
+
+/**
+ * X86_MATCH_VENDOR_FEATURE - Macro for matching vendor and CPU feature
+ * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
+ * The name is expanded to X86_VENDOR_@vendor
+ * @feature: A X86_FEATURE bit
+ * @data: Driver specific data or NULL. The internal storage
+ * format is unsigned long. The supplied value, pointer
+ * etc. is casted to unsigned long internally.
+ *
+ * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are
+ * set to wildcards.
+ */
+#define X86_MATCH_VENDOR_FEATURE(vendor, feature, data) \
+ X86_MATCH_VENDOR_FAM_FEATURE(vendor, X86_FAMILY_ANY, feature, data)
+
+/**
+ * X86_MATCH_FEATURE - Macro for matching a CPU feature
+ * @feature: A X86_FEATURE bit
+ * @data: Driver specific data or NULL. The internal storage
+ * format is unsigned long. The supplied value, pointer
+ * etc. is casted to unsigned long internally.
+ *
+ * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are
+ * set to wildcards.
+ */
+#define X86_MATCH_FEATURE(feature, data) \
+ X86_MATCH_VENDOR_FEATURE(ANY, feature, data)
+
+/**
+ * X86_MATCH_VENDOR_FAM_MODEL - Match vendor, family and model
+ * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
+ * The name is expanded to X86_VENDOR_@vendor
+ * @family: The family number or X86_FAMILY_ANY
+ * @model: The model number, model constant or X86_MODEL_ANY
+ * @data: Driver specific data or NULL. The internal storage
+ * format is unsigned long. The supplied value, pointer
+ * etc. is casted to unsigned long internally.
+ *
+ * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are
+ * set to wildcards.
+ */
+#define X86_MATCH_VENDOR_FAM_MODEL(vendor, family, model, data) \
+ X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, \
+ X86_FEATURE_ANY, data)
+
+/**
+ * X86_MATCH_VENDOR_FAM - Match vendor and family
+ * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY
+ * The name is expanded to X86_VENDOR_@vendor
+ * @family: The family number or X86_FAMILY_ANY
+ * @data: Driver specific data or NULL. The internal storage
+ * format is unsigned long. The supplied value, pointer
+ * etc. is casted to unsigned long internally.
+ *
+ * All other missing arguments to X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are
+ * set of wildcards.
+ */
+#define X86_MATCH_VENDOR_FAM(vendor, family, data) \
+ X86_MATCH_VENDOR_FAM_MODEL(vendor, family, X86_MODEL_ANY, data)
+
+/**
+ * X86_MATCH_INTEL_FAM6_MODEL - Match vendor INTEL, family 6 and model
+ * @model: The model name without the INTEL_FAM6_ prefix or ANY
+ * The model name is expanded to INTEL_FAM6_@model internally
+ * @data: Driver specific data or NULL. The internal storage
+ * format is unsigned long. The supplied value, pointer
+ * etc. is casted to unsigned long internally.
+ *
+ * The vendor is set to INTEL, the family to 6 and all other missing
+ * arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are set to wildcards.
+ *
+ * See X86_MATCH_VENDOR_FAM_MODEL_FEATURE() for further information.
+ */
+#define X86_MATCH_INTEL_FAM6_MODEL(model, data) \
+ X86_MATCH_VENDOR_FAM_MODEL(INTEL, 6, INTEL_FAM6_##model, data)
+
+#define X86_MATCH_INTEL_FAM6_MODEL_STEPPINGS(model, steppings, data) \
+ X86_MATCH_VENDOR_FAM_MODEL_STEPPINGS_FEATURE(INTEL, 6, INTEL_FAM6_##model, \
+ steppings, X86_FEATURE_ANY, data)
+
+/*
+ * Match specific microcode revisions.
+ *
+ * vendor/family/model/stepping must be all set.
+ *
+ * Only checks against the boot CPU. When mixed-stepping configs are
+ * valid for a CPU model, add a quirk for every valid stepping and
+ * do the fine-tuning in the quirk handler.
+ */
+
+struct x86_cpu_desc {
+ u8 x86_family;
+ u8 x86_vendor;
+ u8 x86_model;
+ u8 x86_stepping;
+ u32 x86_microcode_rev;
+};
+
+#define INTEL_CPU_DESC(model, stepping, revision) { \
+ .x86_family = 6, \
+ .x86_vendor = X86_VENDOR_INTEL, \
+ .x86_model = (model), \
+ .x86_stepping = (stepping), \
+ .x86_microcode_rev = (revision), \
+}
+
+extern const struct x86_cpu_id *x86_match_cpu(const struct x86_cpu_id *match);
+extern bool x86_cpu_has_min_microcode_rev(const struct x86_cpu_desc *table);
+
+#endif /* _ASM_X86_CPU_DEVICE_ID */
diff --git a/arch/x86/include/asm/cpu_entry_area.h b/arch/x86/include/asm/cpu_entry_area.h
new file mode 100644
index 000000000000..462fc34f1317
--- /dev/null
+++ b/arch/x86/include/asm/cpu_entry_area.h
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _ASM_X86_CPU_ENTRY_AREA_H
+#define _ASM_X86_CPU_ENTRY_AREA_H
+
+#include <linux/percpu-defs.h>
+#include <asm/processor.h>
+#include <asm/intel_ds.h>
+#include <asm/pgtable_areas.h>
+
+#ifdef CONFIG_X86_64
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+#define VC_EXCEPTION_STKSZ EXCEPTION_STKSZ
+#else
+#define VC_EXCEPTION_STKSZ 0
+#endif
+
+/* Macro to enforce the same ordering and stack sizes */
+#define ESTACKS_MEMBERS(guardsize, optional_stack_size) \
+ char DF_stack_guard[guardsize]; \
+ char DF_stack[EXCEPTION_STKSZ]; \
+ char NMI_stack_guard[guardsize]; \
+ char NMI_stack[EXCEPTION_STKSZ]; \
+ char DB_stack_guard[guardsize]; \
+ char DB_stack[EXCEPTION_STKSZ]; \
+ char MCE_stack_guard[guardsize]; \
+ char MCE_stack[EXCEPTION_STKSZ]; \
+ char VC_stack_guard[guardsize]; \
+ char VC_stack[optional_stack_size]; \
+ char VC2_stack_guard[guardsize]; \
+ char VC2_stack[optional_stack_size]; \
+ char IST_top_guard[guardsize]; \
+
+/* The exception stacks' physical storage. No guard pages required */
+struct exception_stacks {
+ ESTACKS_MEMBERS(0, VC_EXCEPTION_STKSZ)
+};
+
+/* The effective cpu entry area mapping with guard pages. */
+struct cea_exception_stacks {
+ ESTACKS_MEMBERS(PAGE_SIZE, EXCEPTION_STKSZ)
+};
+
+/*
+ * The exception stack ordering in [cea_]exception_stacks
+ */
+enum exception_stack_ordering {
+ ESTACK_DF,
+ ESTACK_NMI,
+ ESTACK_DB,
+ ESTACK_MCE,
+ ESTACK_VC,
+ ESTACK_VC2,
+ N_EXCEPTION_STACKS
+};
+
+#define CEA_ESTACK_SIZE(st) \
+ sizeof(((struct cea_exception_stacks *)0)->st## _stack)
+
+#define CEA_ESTACK_BOT(ceastp, st) \
+ ((unsigned long)&(ceastp)->st## _stack)
+
+#define CEA_ESTACK_TOP(ceastp, st) \
+ (CEA_ESTACK_BOT(ceastp, st) + CEA_ESTACK_SIZE(st))
+
+#define CEA_ESTACK_OFFS(st) \
+ offsetof(struct cea_exception_stacks, st## _stack)
+
+#define CEA_ESTACK_PAGES \
+ (sizeof(struct cea_exception_stacks) / PAGE_SIZE)
+
+#endif
+
+#ifdef CONFIG_X86_32
+struct doublefault_stack {
+ unsigned long stack[(PAGE_SIZE - sizeof(struct x86_hw_tss)) / sizeof(unsigned long)];
+ struct x86_hw_tss tss;
+} __aligned(PAGE_SIZE);
+#endif
+
+/*
+ * cpu_entry_area is a percpu region that contains things needed by the CPU
+ * and early entry/exit code. Real types aren't used for all fields here
+ * to avoid circular header dependencies.
+ *
+ * Every field is a virtual alias of some other allocated backing store.
+ * There is no direct allocation of a struct cpu_entry_area.
+ */
+struct cpu_entry_area {
+ char gdt[PAGE_SIZE];
+
+ /*
+ * The GDT is just below entry_stack and thus serves (on x86_64) as
+ * a read-only guard page. On 32-bit the GDT must be writeable, so
+ * it needs an extra guard page.
+ */
+#ifdef CONFIG_X86_32
+ char guard_entry_stack[PAGE_SIZE];
+#endif
+ struct entry_stack_page entry_stack_page;
+
+#ifdef CONFIG_X86_32
+ char guard_doublefault_stack[PAGE_SIZE];
+ struct doublefault_stack doublefault_stack;
+#endif
+
+ /*
+ * On x86_64, the TSS is mapped RO. On x86_32, it's mapped RW because
+ * we need task switches to work, and task switches write to the TSS.
+ */
+ struct tss_struct tss;
+
+#ifdef CONFIG_X86_64
+ /*
+ * Exception stacks used for IST entries with guard pages.
+ */
+ struct cea_exception_stacks estacks;
+#endif
+ /*
+ * Per CPU debug store for Intel performance monitoring. Wastes a
+ * full page at the moment.
+ */
+ struct debug_store cpu_debug_store;
+ /*
+ * The actual PEBS/BTS buffers must be mapped to user space
+ * Reserve enough fixmap PTEs.
+ */
+ struct debug_store_buffers cpu_debug_buffers;
+};
+
+#define CPU_ENTRY_AREA_SIZE (sizeof(struct cpu_entry_area))
+
+DECLARE_PER_CPU(struct cpu_entry_area *, cpu_entry_area);
+DECLARE_PER_CPU(struct cea_exception_stacks *, cea_exception_stacks);
+
+extern void setup_cpu_entry_areas(void);
+extern void cea_set_pte(void *cea_vaddr, phys_addr_t pa, pgprot_t flags);
+
+extern struct cpu_entry_area *get_cpu_entry_area(int cpu);
+
+static __always_inline struct entry_stack *cpu_entry_stack(int cpu)
+{
+ return &get_cpu_entry_area(cpu)->entry_stack_page.stack;
+}
+
+#define __this_cpu_ist_top_va(name) \
+ CEA_ESTACK_TOP(__this_cpu_read(cea_exception_stacks), name)
+
+#define __this_cpu_ist_bottom_va(name) \
+ CEA_ESTACK_BOT(__this_cpu_read(cea_exception_stacks), name)
+
+#endif
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 91f3e087cf21..ce0c8f7d3218 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -1,380 +1,217 @@
-/*
- * Defines x86 CPU feature bits
- */
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CPUFEATURE_H
#define _ASM_X86_CPUFEATURE_H
-#include <asm/required-features.h>
-
-#define NCAPINTS 10 /* N 32-bit words worth of info */
-
-/*
- * Note: If the comment begins with a quoted string, that string is used
- * in /proc/cpuinfo instead of the macro name. If the string is "",
- * this feature bit is not displayed in /proc/cpuinfo at all.
- */
-
-/* Intel-defined CPU features, CPUID level 0x00000001 (edx), word 0 */
-#define X86_FEATURE_FPU (0*32+ 0) /* Onboard FPU */
-#define X86_FEATURE_VME (0*32+ 1) /* Virtual Mode Extensions */
-#define X86_FEATURE_DE (0*32+ 2) /* Debugging Extensions */
-#define X86_FEATURE_PSE (0*32+ 3) /* Page Size Extensions */
-#define X86_FEATURE_TSC (0*32+ 4) /* Time Stamp Counter */
-#define X86_FEATURE_MSR (0*32+ 5) /* Model-Specific Registers */
-#define X86_FEATURE_PAE (0*32+ 6) /* Physical Address Extensions */
-#define X86_FEATURE_MCE (0*32+ 7) /* Machine Check Exception */
-#define X86_FEATURE_CX8 (0*32+ 8) /* CMPXCHG8 instruction */
-#define X86_FEATURE_APIC (0*32+ 9) /* Onboard APIC */
-#define X86_FEATURE_SEP (0*32+11) /* SYSENTER/SYSEXIT */
-#define X86_FEATURE_MTRR (0*32+12) /* Memory Type Range Registers */
-#define X86_FEATURE_PGE (0*32+13) /* Page Global Enable */
-#define X86_FEATURE_MCA (0*32+14) /* Machine Check Architecture */
-#define X86_FEATURE_CMOV (0*32+15) /* CMOV instructions */
- /* (plus FCMOVcc, FCOMI with FPU) */
-#define X86_FEATURE_PAT (0*32+16) /* Page Attribute Table */
-#define X86_FEATURE_PSE36 (0*32+17) /* 36-bit PSEs */
-#define X86_FEATURE_PN (0*32+18) /* Processor serial number */
-#define X86_FEATURE_CLFLSH (0*32+19) /* "clflush" CLFLUSH instruction */
-#define X86_FEATURE_DS (0*32+21) /* "dts" Debug Store */
-#define X86_FEATURE_ACPI (0*32+22) /* ACPI via MSR */
-#define X86_FEATURE_MMX (0*32+23) /* Multimedia Extensions */
-#define X86_FEATURE_FXSR (0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */
-#define X86_FEATURE_XMM (0*32+25) /* "sse" */
-#define X86_FEATURE_XMM2 (0*32+26) /* "sse2" */
-#define X86_FEATURE_SELFSNOOP (0*32+27) /* "ss" CPU self snoop */
-#define X86_FEATURE_HT (0*32+28) /* Hyper-Threading */
-#define X86_FEATURE_ACC (0*32+29) /* "tm" Automatic clock control */
-#define X86_FEATURE_IA64 (0*32+30) /* IA-64 processor */
-#define X86_FEATURE_PBE (0*32+31) /* Pending Break Enable */
-
-/* AMD-defined CPU features, CPUID level 0x80000001, word 1 */
-/* Don't duplicate feature flags which are redundant with Intel! */
-#define X86_FEATURE_SYSCALL (1*32+11) /* SYSCALL/SYSRET */
-#define X86_FEATURE_MP (1*32+19) /* MP Capable. */
-#define X86_FEATURE_NX (1*32+20) /* Execute Disable */
-#define X86_FEATURE_MMXEXT (1*32+22) /* AMD MMX extensions */
-#define X86_FEATURE_FXSR_OPT (1*32+25) /* FXSAVE/FXRSTOR optimizations */
-#define X86_FEATURE_GBPAGES (1*32+26) /* "pdpe1gb" GB pages */
-#define X86_FEATURE_RDTSCP (1*32+27) /* RDTSCP */
-#define X86_FEATURE_LM (1*32+29) /* Long Mode (x86-64) */
-#define X86_FEATURE_3DNOWEXT (1*32+30) /* AMD 3DNow! extensions */
-#define X86_FEATURE_3DNOW (1*32+31) /* 3DNow! */
-
-/* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */
-#define X86_FEATURE_RECOVERY (2*32+ 0) /* CPU in recovery mode */
-#define X86_FEATURE_LONGRUN (2*32+ 1) /* Longrun power control */
-#define X86_FEATURE_LRTI (2*32+ 3) /* LongRun table interface */
-
-/* Other features, Linux-defined mapping, word 3 */
-/* This range is used for feature bits which conflict or are synthesized */
-#define X86_FEATURE_CXMMX (3*32+ 0) /* Cyrix MMX extensions */
-#define X86_FEATURE_K6_MTRR (3*32+ 1) /* AMD K6 nonstandard MTRRs */
-#define X86_FEATURE_CYRIX_ARR (3*32+ 2) /* Cyrix ARRs (= MTRRs) */
-#define X86_FEATURE_CENTAUR_MCR (3*32+ 3) /* Centaur MCRs (= MTRRs) */
-/* cpu types for specific tunings: */
-#define X86_FEATURE_K8 (3*32+ 4) /* "" Opteron, Athlon64 */
-#define X86_FEATURE_K7 (3*32+ 5) /* "" Athlon */
-#define X86_FEATURE_P3 (3*32+ 6) /* "" P3 */
-#define X86_FEATURE_P4 (3*32+ 7) /* "" P4 */
-#define X86_FEATURE_CONSTANT_TSC (3*32+ 8) /* TSC ticks at a constant rate */
-#define X86_FEATURE_UP (3*32+ 9) /* smp kernel running on up */
-#define X86_FEATURE_FXSAVE_LEAK (3*32+10) /* "" FXSAVE leaks FOP/FIP/FOP */
-#define X86_FEATURE_ARCH_PERFMON (3*32+11) /* Intel Architectural PerfMon */
-#define X86_FEATURE_PEBS (3*32+12) /* Precise-Event Based Sampling */
-#define X86_FEATURE_BTS (3*32+13) /* Branch Trace Store */
-#define X86_FEATURE_SYSCALL32 (3*32+14) /* "" syscall in ia32 userspace */
-#define X86_FEATURE_SYSENTER32 (3*32+15) /* "" sysenter in ia32 userspace */
-#define X86_FEATURE_REP_GOOD (3*32+16) /* rep microcode works well */
-#define X86_FEATURE_MFENCE_RDTSC (3*32+17) /* "" Mfence synchronizes RDTSC */
-#define X86_FEATURE_LFENCE_RDTSC (3*32+18) /* "" Lfence synchronizes RDTSC */
-#define X86_FEATURE_11AP (3*32+19) /* "" Bad local APIC aka 11AP */
-#define X86_FEATURE_NOPL (3*32+20) /* The NOPL (0F 1F) instructions */
- /* 21 available, was AMD_C1E */
-#define X86_FEATURE_XTOPOLOGY (3*32+22) /* cpu topology enum extensions */
-#define X86_FEATURE_TSC_RELIABLE (3*32+23) /* TSC is known to be reliable */
-#define X86_FEATURE_NONSTOP_TSC (3*32+24) /* TSC does not stop in C states */
-#define X86_FEATURE_CLFLUSH_MONITOR (3*32+25) /* "" clflush reqd with monitor */
-#define X86_FEATURE_EXTD_APICID (3*32+26) /* has extended APICID (8 bits) */
-#define X86_FEATURE_AMD_DCM (3*32+27) /* multi-node processor */
-#define X86_FEATURE_APERFMPERF (3*32+28) /* APERFMPERF */
-
-/* Intel-defined CPU features, CPUID level 0x00000001 (ecx), word 4 */
-#define X86_FEATURE_XMM3 (4*32+ 0) /* "pni" SSE-3 */
-#define X86_FEATURE_PCLMULQDQ (4*32+ 1) /* PCLMULQDQ instruction */
-#define X86_FEATURE_DTES64 (4*32+ 2) /* 64-bit Debug Store */
-#define X86_FEATURE_MWAIT (4*32+ 3) /* "monitor" Monitor/Mwait support */
-#define X86_FEATURE_DSCPL (4*32+ 4) /* "ds_cpl" CPL Qual. Debug Store */
-#define X86_FEATURE_VMX (4*32+ 5) /* Hardware virtualization */
-#define X86_FEATURE_SMX (4*32+ 6) /* Safer mode */
-#define X86_FEATURE_EST (4*32+ 7) /* Enhanced SpeedStep */
-#define X86_FEATURE_TM2 (4*32+ 8) /* Thermal Monitor 2 */
-#define X86_FEATURE_SSSE3 (4*32+ 9) /* Supplemental SSE-3 */
-#define X86_FEATURE_CID (4*32+10) /* Context ID */
-#define X86_FEATURE_FMA (4*32+12) /* Fused multiply-add */
-#define X86_FEATURE_CX16 (4*32+13) /* CMPXCHG16B */
-#define X86_FEATURE_XTPR (4*32+14) /* Send Task Priority Messages */
-#define X86_FEATURE_PDCM (4*32+15) /* Performance Capabilities */
-#define X86_FEATURE_DCA (4*32+18) /* Direct Cache Access */
-#define X86_FEATURE_XMM4_1 (4*32+19) /* "sse4_1" SSE-4.1 */
-#define X86_FEATURE_XMM4_2 (4*32+20) /* "sse4_2" SSE-4.2 */
-#define X86_FEATURE_X2APIC (4*32+21) /* x2APIC */
-#define X86_FEATURE_MOVBE (4*32+22) /* MOVBE instruction */
-#define X86_FEATURE_POPCNT (4*32+23) /* POPCNT instruction */
-#define X86_FEATURE_AES (4*32+25) /* AES instructions */
-#define X86_FEATURE_XSAVE (4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV */
-#define X86_FEATURE_OSXSAVE (4*32+27) /* "" XSAVE enabled in the OS */
-#define X86_FEATURE_AVX (4*32+28) /* Advanced Vector Extensions */
-#define X86_FEATURE_F16C (4*32+29) /* 16-bit fp conversions */
-#define X86_FEATURE_RDRND (4*32+30) /* The RDRAND instruction */
-#define X86_FEATURE_HYPERVISOR (4*32+31) /* Running on a hypervisor */
-
-/* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */
-#define X86_FEATURE_XSTORE (5*32+ 2) /* "rng" RNG present (xstore) */
-#define X86_FEATURE_XSTORE_EN (5*32+ 3) /* "rng_en" RNG enabled */
-#define X86_FEATURE_XCRYPT (5*32+ 6) /* "ace" on-CPU crypto (xcrypt) */
-#define X86_FEATURE_XCRYPT_EN (5*32+ 7) /* "ace_en" on-CPU crypto enabled */
-#define X86_FEATURE_ACE2 (5*32+ 8) /* Advanced Cryptography Engine v2 */
-#define X86_FEATURE_ACE2_EN (5*32+ 9) /* ACE v2 enabled */
-#define X86_FEATURE_PHE (5*32+10) /* PadLock Hash Engine */
-#define X86_FEATURE_PHE_EN (5*32+11) /* PHE enabled */
-#define X86_FEATURE_PMM (5*32+12) /* PadLock Montgomery Multiplier */
-#define X86_FEATURE_PMM_EN (5*32+13) /* PMM enabled */
-
-/* More extended AMD flags: CPUID level 0x80000001, ecx, word 6 */
-#define X86_FEATURE_LAHF_LM (6*32+ 0) /* LAHF/SAHF in long mode */
-#define X86_FEATURE_CMP_LEGACY (6*32+ 1) /* If yes HyperThreading not valid */
-#define X86_FEATURE_SVM (6*32+ 2) /* Secure virtual machine */
-#define X86_FEATURE_EXTAPIC (6*32+ 3) /* Extended APIC space */
-#define X86_FEATURE_CR8_LEGACY (6*32+ 4) /* CR8 in 32-bit mode */
-#define X86_FEATURE_ABM (6*32+ 5) /* Advanced bit manipulation */
-#define X86_FEATURE_SSE4A (6*32+ 6) /* SSE-4A */
-#define X86_FEATURE_MISALIGNSSE (6*32+ 7) /* Misaligned SSE mode */
-#define X86_FEATURE_3DNOWPREFETCH (6*32+ 8) /* 3DNow prefetch instructions */
-#define X86_FEATURE_OSVW (6*32+ 9) /* OS Visible Workaround */
-#define X86_FEATURE_IBS (6*32+10) /* Instruction Based Sampling */
-#define X86_FEATURE_XOP (6*32+11) /* extended AVX instructions */
-#define X86_FEATURE_SKINIT (6*32+12) /* SKINIT/STGI instructions */
-#define X86_FEATURE_WDT (6*32+13) /* Watchdog timer */
-#define X86_FEATURE_LWP (6*32+15) /* Light Weight Profiling */
-#define X86_FEATURE_FMA4 (6*32+16) /* 4 operands MAC instructions */
-#define X86_FEATURE_NODEID_MSR (6*32+19) /* NodeId MSR */
-#define X86_FEATURE_TBM (6*32+21) /* trailing bit manipulations */
-#define X86_FEATURE_TOPOEXT (6*32+22) /* topology extensions CPUID leafs */
-#define X86_FEATURE_PERFCTR_CORE (6*32+23) /* core performance counter extensions */
-
-/*
- * Auxiliary flags: Linux defined - For features scattered in various
- * CPUID levels like 0x6, 0xA etc, word 7
- */
-#define X86_FEATURE_IDA (7*32+ 0) /* Intel Dynamic Acceleration */
-#define X86_FEATURE_ARAT (7*32+ 1) /* Always Running APIC Timer */
-#define X86_FEATURE_CPB (7*32+ 2) /* AMD Core Performance Boost */
-#define X86_FEATURE_EPB (7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */
-#define X86_FEATURE_XSAVEOPT (7*32+ 4) /* Optimized Xsave */
-#define X86_FEATURE_PLN (7*32+ 5) /* Intel Power Limit Notification */
-#define X86_FEATURE_PTS (7*32+ 6) /* Intel Package Thermal Status */
-#define X86_FEATURE_DTS (7*32+ 7) /* Digital Thermal Sensor */
-
-/* Virtualization flags: Linux defined, word 8 */
-#define X86_FEATURE_TPR_SHADOW (8*32+ 0) /* Intel TPR Shadow */
-#define X86_FEATURE_VNMI (8*32+ 1) /* Intel Virtual NMI */
-#define X86_FEATURE_FLEXPRIORITY (8*32+ 2) /* Intel FlexPriority */
-#define X86_FEATURE_EPT (8*32+ 3) /* Intel Extended Page Table */
-#define X86_FEATURE_VPID (8*32+ 4) /* Intel Virtual Processor ID */
-#define X86_FEATURE_NPT (8*32+ 5) /* AMD Nested Page Table support */
-#define X86_FEATURE_LBRV (8*32+ 6) /* AMD LBR Virtualization support */
-#define X86_FEATURE_SVML (8*32+ 7) /* "svm_lock" AMD SVM locking MSR */
-#define X86_FEATURE_NRIPS (8*32+ 8) /* "nrip_save" AMD SVM next_rip save */
-#define X86_FEATURE_TSCRATEMSR (8*32+ 9) /* "tsc_scale" AMD TSC scaling support */
-#define X86_FEATURE_VMCBCLEAN (8*32+10) /* "vmcb_clean" AMD VMCB clean bits support */
-#define X86_FEATURE_FLUSHBYASID (8*32+11) /* AMD flush-by-ASID support */
-#define X86_FEATURE_DECODEASSISTS (8*32+12) /* AMD Decode Assists support */
-#define X86_FEATURE_PAUSEFILTER (8*32+13) /* AMD filtered pause intercept */
-#define X86_FEATURE_PFTHRESHOLD (8*32+14) /* AMD pause filter threshold */
-
-
-/* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */
-#define X86_FEATURE_FSGSBASE (9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/
+#include <asm/processor.h>
#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
#include <asm/asm.h>
#include <linux/bitops.h>
+#include <asm/alternative.h>
+enum cpuid_leafs
+{
+ CPUID_1_EDX = 0,
+ CPUID_8000_0001_EDX,
+ CPUID_8086_0001_EDX,
+ CPUID_LNX_1,
+ CPUID_1_ECX,
+ CPUID_C000_0001_EDX,
+ CPUID_8000_0001_ECX,
+ CPUID_LNX_2,
+ CPUID_LNX_3,
+ CPUID_7_0_EBX,
+ CPUID_D_1_EAX,
+ CPUID_LNX_4,
+ CPUID_7_1_EAX,
+ CPUID_8000_0008_EBX,
+ CPUID_6_EAX,
+ CPUID_8000_000A_EDX,
+ CPUID_7_ECX,
+ CPUID_8000_0007_EBX,
+ CPUID_7_EDX,
+ CPUID_8000_001F_EAX,
+ CPUID_8000_0021_EAX,
+};
+
+#define X86_CAP_FMT_NUM "%d:%d"
+#define x86_cap_flag_num(flag) ((flag) >> 5), ((flag) & 31)
+
+#ifdef CONFIG_X86_FEATURE_NAMES
extern const char * const x86_cap_flags[NCAPINTS*32];
extern const char * const x86_power_flags[32];
+#define X86_CAP_FMT "%s"
+#define x86_cap_flag(flag) x86_cap_flags[flag]
+#else
+#define X86_CAP_FMT X86_CAP_FMT_NUM
+#define x86_cap_flag x86_cap_flag_num
+#endif
+
+/*
+ * In order to save room, we index into this array by doing
+ * X86_BUG_<name> - NCAPINTS*32.
+ */
+extern const char * const x86_bug_flags[NBUGINTS*32];
#define test_cpu_cap(c, bit) \
- test_bit(bit, (unsigned long *)((c)->x86_capability))
+ arch_test_bit(bit, (unsigned long *)((c)->x86_capability))
+
+/*
+ * There are 32 bits/features in each mask word. The high bits
+ * (selected with (bit>>5) give us the word number and the low 5
+ * bits give us the bit/feature number inside the word.
+ * (1UL<<((bit)&31) gives us a mask for the feature_bit so we can
+ * see if it is set in the mask word.
+ */
+#define CHECK_BIT_IN_MASK_WORD(maskname, word, bit) \
+ (((bit)>>5)==(word) && (1UL<<((bit)&31) & maskname##word ))
+
+/*
+ * {REQUIRED,DISABLED}_MASK_CHECK below may seem duplicated with the
+ * following BUILD_BUG_ON_ZERO() check but when NCAPINTS gets changed, all
+ * header macros which use NCAPINTS need to be changed. The duplicated macro
+ * use causes the compiler to issue errors for all headers so that all usage
+ * sites can be corrected.
+ */
+#define REQUIRED_MASK_BIT_SET(feature_bit) \
+ ( CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 0, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 1, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 2, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 3, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 4, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 5, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 6, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 7, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 8, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 9, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 10, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 11, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 12, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 13, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 14, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 15, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 16, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 17, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 18, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 19, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 20, feature_bit) || \
+ REQUIRED_MASK_CHECK || \
+ BUILD_BUG_ON_ZERO(NCAPINTS != 21))
+
+#define DISABLED_MASK_BIT_SET(feature_bit) \
+ ( CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 0, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 1, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 2, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 3, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 4, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 5, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 6, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 7, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 8, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 9, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 10, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 11, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 12, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 13, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 14, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 15, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 16, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 17, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 18, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 19, feature_bit) || \
+ CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 20, feature_bit) || \
+ DISABLED_MASK_CHECK || \
+ BUILD_BUG_ON_ZERO(NCAPINTS != 21))
#define cpu_has(c, bit) \
- (__builtin_constant_p(bit) && \
- ( (((bit)>>5)==0 && (1UL<<((bit)&31) & REQUIRED_MASK0)) || \
- (((bit)>>5)==1 && (1UL<<((bit)&31) & REQUIRED_MASK1)) || \
- (((bit)>>5)==2 && (1UL<<((bit)&31) & REQUIRED_MASK2)) || \
- (((bit)>>5)==3 && (1UL<<((bit)&31) & REQUIRED_MASK3)) || \
- (((bit)>>5)==4 && (1UL<<((bit)&31) & REQUIRED_MASK4)) || \
- (((bit)>>5)==5 && (1UL<<((bit)&31) & REQUIRED_MASK5)) || \
- (((bit)>>5)==6 && (1UL<<((bit)&31) & REQUIRED_MASK6)) || \
- (((bit)>>5)==7 && (1UL<<((bit)&31) & REQUIRED_MASK7)) || \
- (((bit)>>5)==8 && (1UL<<((bit)&31) & REQUIRED_MASK8)) || \
- (((bit)>>5)==9 && (1UL<<((bit)&31) & REQUIRED_MASK9)) ) \
- ? 1 : \
+ (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \
test_cpu_cap(c, bit))
+#define this_cpu_has(bit) \
+ (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \
+ x86_this_cpu_test_bit(bit, \
+ (unsigned long __percpu *)&cpu_info.x86_capability))
+
+/*
+ * This macro is for detection of features which need kernel
+ * infrastructure to be used. It may *not* directly test the CPU
+ * itself. Use the cpu_has() family if you want true runtime
+ * testing of CPU features, like in hypervisor code where you are
+ * supporting a possible guest feature where host support for it
+ * is not relevant.
+ */
+#define cpu_feature_enabled(bit) \
+ (__builtin_constant_p(bit) && DISABLED_MASK_BIT_SET(bit) ? 0 : static_cpu_has(bit))
+
#define boot_cpu_has(bit) cpu_has(&boot_cpu_data, bit)
#define set_cpu_cap(c, bit) set_bit(bit, (unsigned long *)((c)->x86_capability))
-#define clear_cpu_cap(c, bit) clear_bit(bit, (unsigned long *)((c)->x86_capability))
-#define setup_clear_cpu_cap(bit) do { \
- clear_cpu_cap(&boot_cpu_data, bit); \
- set_bit(bit, (unsigned long *)cpu_caps_cleared); \
-} while (0)
+
+extern void setup_clear_cpu_cap(unsigned int bit);
+extern void clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int bit);
+
#define setup_force_cpu_cap(bit) do { \
set_cpu_cap(&boot_cpu_data, bit); \
set_bit(bit, (unsigned long *)cpu_caps_set); \
} while (0)
-#define cpu_has_fpu boot_cpu_has(X86_FEATURE_FPU)
-#define cpu_has_vme boot_cpu_has(X86_FEATURE_VME)
-#define cpu_has_de boot_cpu_has(X86_FEATURE_DE)
-#define cpu_has_pse boot_cpu_has(X86_FEATURE_PSE)
-#define cpu_has_tsc boot_cpu_has(X86_FEATURE_TSC)
-#define cpu_has_pae boot_cpu_has(X86_FEATURE_PAE)
-#define cpu_has_pge boot_cpu_has(X86_FEATURE_PGE)
-#define cpu_has_apic boot_cpu_has(X86_FEATURE_APIC)
-#define cpu_has_sep boot_cpu_has(X86_FEATURE_SEP)
-#define cpu_has_mtrr boot_cpu_has(X86_FEATURE_MTRR)
-#define cpu_has_mmx boot_cpu_has(X86_FEATURE_MMX)
-#define cpu_has_fxsr boot_cpu_has(X86_FEATURE_FXSR)
-#define cpu_has_xmm boot_cpu_has(X86_FEATURE_XMM)
-#define cpu_has_xmm2 boot_cpu_has(X86_FEATURE_XMM2)
-#define cpu_has_xmm3 boot_cpu_has(X86_FEATURE_XMM3)
-#define cpu_has_aes boot_cpu_has(X86_FEATURE_AES)
-#define cpu_has_ht boot_cpu_has(X86_FEATURE_HT)
-#define cpu_has_mp boot_cpu_has(X86_FEATURE_MP)
-#define cpu_has_nx boot_cpu_has(X86_FEATURE_NX)
-#define cpu_has_k6_mtrr boot_cpu_has(X86_FEATURE_K6_MTRR)
-#define cpu_has_cyrix_arr boot_cpu_has(X86_FEATURE_CYRIX_ARR)
-#define cpu_has_centaur_mcr boot_cpu_has(X86_FEATURE_CENTAUR_MCR)
-#define cpu_has_xstore boot_cpu_has(X86_FEATURE_XSTORE)
-#define cpu_has_xstore_enabled boot_cpu_has(X86_FEATURE_XSTORE_EN)
-#define cpu_has_xcrypt boot_cpu_has(X86_FEATURE_XCRYPT)
-#define cpu_has_xcrypt_enabled boot_cpu_has(X86_FEATURE_XCRYPT_EN)
-#define cpu_has_ace2 boot_cpu_has(X86_FEATURE_ACE2)
-#define cpu_has_ace2_enabled boot_cpu_has(X86_FEATURE_ACE2_EN)
-#define cpu_has_phe boot_cpu_has(X86_FEATURE_PHE)
-#define cpu_has_phe_enabled boot_cpu_has(X86_FEATURE_PHE_EN)
-#define cpu_has_pmm boot_cpu_has(X86_FEATURE_PMM)
-#define cpu_has_pmm_enabled boot_cpu_has(X86_FEATURE_PMM_EN)
-#define cpu_has_ds boot_cpu_has(X86_FEATURE_DS)
-#define cpu_has_pebs boot_cpu_has(X86_FEATURE_PEBS)
-#define cpu_has_clflush boot_cpu_has(X86_FEATURE_CLFLSH)
-#define cpu_has_bts boot_cpu_has(X86_FEATURE_BTS)
-#define cpu_has_gbpages boot_cpu_has(X86_FEATURE_GBPAGES)
-#define cpu_has_arch_perfmon boot_cpu_has(X86_FEATURE_ARCH_PERFMON)
-#define cpu_has_pat boot_cpu_has(X86_FEATURE_PAT)
-#define cpu_has_xmm4_1 boot_cpu_has(X86_FEATURE_XMM4_1)
-#define cpu_has_xmm4_2 boot_cpu_has(X86_FEATURE_XMM4_2)
-#define cpu_has_x2apic boot_cpu_has(X86_FEATURE_X2APIC)
-#define cpu_has_xsave boot_cpu_has(X86_FEATURE_XSAVE)
-#define cpu_has_hypervisor boot_cpu_has(X86_FEATURE_HYPERVISOR)
-#define cpu_has_pclmulqdq boot_cpu_has(X86_FEATURE_PCLMULQDQ)
-#define cpu_has_perfctr_core boot_cpu_has(X86_FEATURE_PERFCTR_CORE)
-
-#if defined(CONFIG_X86_INVLPG) || defined(CONFIG_X86_64)
-# define cpu_has_invlpg 1
-#else
-# define cpu_has_invlpg (boot_cpu_data.x86 > 3)
-#endif
-
-#ifdef CONFIG_X86_64
-
-#undef cpu_has_vme
-#define cpu_has_vme 0
-
-#undef cpu_has_pae
-#define cpu_has_pae ___BUG___
-
-#undef cpu_has_mp
-#define cpu_has_mp 1
+#define setup_force_cpu_bug(bit) setup_force_cpu_cap(bit)
-#undef cpu_has_k6_mtrr
-#define cpu_has_k6_mtrr 0
-
-#undef cpu_has_cyrix_arr
-#define cpu_has_cyrix_arr 0
-
-#undef cpu_has_centaur_mcr
-#define cpu_has_centaur_mcr 0
-
-#endif /* CONFIG_X86_64 */
-
-#if __GNUC__ >= 4
/*
- * Static testing of CPU features. Used the same as boot_cpu_has().
- * These are only valid after alternatives have run, but will statically
- * patch the target code for additional performance.
+ * Static testing of CPU features. Used the same as boot_cpu_has(). It
+ * statically patches the target code for additional performance. Use
+ * static_cpu_has() only in fast paths, where every cycle counts. Which
+ * means that the boot_cpu_has() variant is already fast enough for the
+ * majority of cases and you should stick to using it as it is generally
+ * only two instructions: a RIP-relative MOV and a TEST.
*
+ * Do not use an "m" constraint for [cap_byte] here: gcc doesn't know
+ * that this is only used on a fallback path and will sometimes cause
+ * it to manifest the address of boot_cpu_data in a register, fouling
+ * the mainline (post-initialization) code.
*/
-static __always_inline __pure bool __static_cpu_has(u16 bit)
+static __always_inline bool _static_cpu_has(u16 bit)
{
-#if __GNUC__ > 4 || __GNUC_MINOR__ >= 5
- asm goto("1: jmp %l[t_no]\n"
- "2:\n"
- ".section .altinstructions,\"a\"\n"
- _ASM_ALIGN "\n"
- _ASM_PTR "1b\n"
- _ASM_PTR "0\n" /* no replacement */
- " .word %P0\n" /* feature bit */
- " .byte 2b - 1b\n" /* source len */
- " .byte 0\n" /* replacement len */
- ".previous\n"
- /* skipping size check since replacement size = 0 */
- : : "i" (bit) : : t_no);
- return true;
- t_no:
- return false;
-#else
- u8 flag;
- /* Open-coded due to __stringify() in ALTERNATIVE() */
- asm volatile("1: movb $0,%0\n"
- "2:\n"
- ".section .altinstructions,\"a\"\n"
- _ASM_ALIGN "\n"
- _ASM_PTR "1b\n"
- _ASM_PTR "3f\n"
- " .word %P1\n" /* feature bit */
- " .byte 2b - 1b\n" /* source len */
- " .byte 4f - 3f\n" /* replacement len */
- ".previous\n"
- ".section .discard,\"aw\",@progbits\n"
- " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */
- ".previous\n"
- ".section .altinstr_replacement,\"ax\"\n"
- "3: movb $1,%0\n"
- "4:\n"
- ".previous\n"
- : "=qm" (flag) : "i" (bit));
- return flag;
-#endif
+ asm_volatile_goto(
+ ALTERNATIVE_TERNARY("jmp 6f", %P[feature], "", "jmp %l[t_no]")
+ ".pushsection .altinstr_aux,\"ax\"\n"
+ "6:\n"
+ " testb %[bitnum]," _ASM_RIP(%P[cap_byte]) "\n"
+ " jnz %l[t_yes]\n"
+ " jmp %l[t_no]\n"
+ ".popsection\n"
+ : : [feature] "i" (bit),
+ [bitnum] "i" (1 << (bit & 7)),
+ [cap_byte] "i" (&((const char *)boot_cpu_data.x86_capability)[bit >> 3])
+ : : t_yes, t_no);
+t_yes:
+ return true;
+t_no:
+ return false;
}
#define static_cpu_has(bit) \
( \
__builtin_constant_p(boot_cpu_has(bit)) ? \
boot_cpu_has(bit) : \
- __builtin_constant_p(bit) ? \
- __static_cpu_has(bit) : \
- boot_cpu_has(bit) \
+ _static_cpu_has(bit) \
)
-#else
-/*
- * gcc 3.x is too stupid to do the static test; fall back to dynamic.
- */
-#define static_cpu_has(bit) boot_cpu_has(bit)
-#endif
-#endif /* defined(__KERNEL__) && !defined(__ASSEMBLY__) */
+#define cpu_has_bug(c, bit) cpu_has(c, (bit))
+#define set_cpu_bug(c, bit) set_cpu_cap(c, (bit))
+#define clear_cpu_bug(c, bit) clear_cpu_cap(c, (bit))
+
+#define static_cpu_has_bug(bit) static_cpu_has((bit))
+#define boot_cpu_has_bug(bit) cpu_has_bug(&boot_cpu_data, (bit))
+#define boot_cpu_set_bug(bit) set_cpu_cap(&boot_cpu_data, (bit))
+#define MAX_CPU_FEATURES (NCAPINTS * 32)
+#define cpu_have_feature boot_cpu_has
+
+#define CPU_FEATURE_TYPEFMT "x86,ven%04Xfam%04Xmod%04X"
+#define CPU_FEATURE_TYPEVAL boot_cpu_data.x86_vendor, boot_cpu_data.x86, \
+ boot_cpu_data.x86_model
+
+#endif /* defined(__KERNEL__) && !defined(__ASSEMBLY__) */
#endif /* _ASM_X86_CPUFEATURE_H */
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
new file mode 100644
index 000000000000..cb8ca46213be
--- /dev/null
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -0,0 +1,487 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_CPUFEATURES_H
+#define _ASM_X86_CPUFEATURES_H
+
+#ifndef _ASM_X86_REQUIRED_FEATURES_H
+#include <asm/required-features.h>
+#endif
+
+#ifndef _ASM_X86_DISABLED_FEATURES_H
+#include <asm/disabled-features.h>
+#endif
+
+/*
+ * Defines x86 CPU feature bits
+ */
+#define NCAPINTS 21 /* N 32-bit words worth of info */
+#define NBUGINTS 1 /* N 32-bit bug flags */
+
+/*
+ * Note: If the comment begins with a quoted string, that string is used
+ * in /proc/cpuinfo instead of the macro name. If the string is "",
+ * this feature bit is not displayed in /proc/cpuinfo at all.
+ *
+ * When adding new features here that depend on other features,
+ * please update the table in kernel/cpu/cpuid-deps.c as well.
+ */
+
+/* Intel-defined CPU features, CPUID level 0x00000001 (EDX), word 0 */
+#define X86_FEATURE_FPU ( 0*32+ 0) /* Onboard FPU */
+#define X86_FEATURE_VME ( 0*32+ 1) /* Virtual Mode Extensions */
+#define X86_FEATURE_DE ( 0*32+ 2) /* Debugging Extensions */
+#define X86_FEATURE_PSE ( 0*32+ 3) /* Page Size Extensions */
+#define X86_FEATURE_TSC ( 0*32+ 4) /* Time Stamp Counter */
+#define X86_FEATURE_MSR ( 0*32+ 5) /* Model-Specific Registers */
+#define X86_FEATURE_PAE ( 0*32+ 6) /* Physical Address Extensions */
+#define X86_FEATURE_MCE ( 0*32+ 7) /* Machine Check Exception */
+#define X86_FEATURE_CX8 ( 0*32+ 8) /* CMPXCHG8 instruction */
+#define X86_FEATURE_APIC ( 0*32+ 9) /* Onboard APIC */
+#define X86_FEATURE_SEP ( 0*32+11) /* SYSENTER/SYSEXIT */
+#define X86_FEATURE_MTRR ( 0*32+12) /* Memory Type Range Registers */
+#define X86_FEATURE_PGE ( 0*32+13) /* Page Global Enable */
+#define X86_FEATURE_MCA ( 0*32+14) /* Machine Check Architecture */
+#define X86_FEATURE_CMOV ( 0*32+15) /* CMOV instructions (plus FCMOVcc, FCOMI with FPU) */
+#define X86_FEATURE_PAT ( 0*32+16) /* Page Attribute Table */
+#define X86_FEATURE_PSE36 ( 0*32+17) /* 36-bit PSEs */
+#define X86_FEATURE_PN ( 0*32+18) /* Processor serial number */
+#define X86_FEATURE_CLFLUSH ( 0*32+19) /* CLFLUSH instruction */
+#define X86_FEATURE_DS ( 0*32+21) /* "dts" Debug Store */
+#define X86_FEATURE_ACPI ( 0*32+22) /* ACPI via MSR */
+#define X86_FEATURE_MMX ( 0*32+23) /* Multimedia Extensions */
+#define X86_FEATURE_FXSR ( 0*32+24) /* FXSAVE/FXRSTOR, CR4.OSFXSR */
+#define X86_FEATURE_XMM ( 0*32+25) /* "sse" */
+#define X86_FEATURE_XMM2 ( 0*32+26) /* "sse2" */
+#define X86_FEATURE_SELFSNOOP ( 0*32+27) /* "ss" CPU self snoop */
+#define X86_FEATURE_HT ( 0*32+28) /* Hyper-Threading */
+#define X86_FEATURE_ACC ( 0*32+29) /* "tm" Automatic clock control */
+#define X86_FEATURE_IA64 ( 0*32+30) /* IA-64 processor */
+#define X86_FEATURE_PBE ( 0*32+31) /* Pending Break Enable */
+
+/* AMD-defined CPU features, CPUID level 0x80000001, word 1 */
+/* Don't duplicate feature flags which are redundant with Intel! */
+#define X86_FEATURE_SYSCALL ( 1*32+11) /* SYSCALL/SYSRET */
+#define X86_FEATURE_MP ( 1*32+19) /* MP Capable */
+#define X86_FEATURE_NX ( 1*32+20) /* Execute Disable */
+#define X86_FEATURE_MMXEXT ( 1*32+22) /* AMD MMX extensions */
+#define X86_FEATURE_FXSR_OPT ( 1*32+25) /* FXSAVE/FXRSTOR optimizations */
+#define X86_FEATURE_GBPAGES ( 1*32+26) /* "pdpe1gb" GB pages */
+#define X86_FEATURE_RDTSCP ( 1*32+27) /* RDTSCP */
+#define X86_FEATURE_LM ( 1*32+29) /* Long Mode (x86-64, 64-bit support) */
+#define X86_FEATURE_3DNOWEXT ( 1*32+30) /* AMD 3DNow extensions */
+#define X86_FEATURE_3DNOW ( 1*32+31) /* 3DNow */
+
+/* Transmeta-defined CPU features, CPUID level 0x80860001, word 2 */
+#define X86_FEATURE_RECOVERY ( 2*32+ 0) /* CPU in recovery mode */
+#define X86_FEATURE_LONGRUN ( 2*32+ 1) /* Longrun power control */
+#define X86_FEATURE_LRTI ( 2*32+ 3) /* LongRun table interface */
+
+/* Other features, Linux-defined mapping, word 3 */
+/* This range is used for feature bits which conflict or are synthesized */
+#define X86_FEATURE_CXMMX ( 3*32+ 0) /* Cyrix MMX extensions */
+#define X86_FEATURE_K6_MTRR ( 3*32+ 1) /* AMD K6 nonstandard MTRRs */
+#define X86_FEATURE_CYRIX_ARR ( 3*32+ 2) /* Cyrix ARRs (= MTRRs) */
+#define X86_FEATURE_CENTAUR_MCR ( 3*32+ 3) /* Centaur MCRs (= MTRRs) */
+
+/* CPU types for specific tunings: */
+#define X86_FEATURE_K8 ( 3*32+ 4) /* "" Opteron, Athlon64 */
+/* FREE, was #define X86_FEATURE_K7 ( 3*32+ 5) "" Athlon */
+#define X86_FEATURE_P3 ( 3*32+ 6) /* "" P3 */
+#define X86_FEATURE_P4 ( 3*32+ 7) /* "" P4 */
+#define X86_FEATURE_CONSTANT_TSC ( 3*32+ 8) /* TSC ticks at a constant rate */
+#define X86_FEATURE_UP ( 3*32+ 9) /* SMP kernel running on UP */
+#define X86_FEATURE_ART ( 3*32+10) /* Always running timer (ART) */
+#define X86_FEATURE_ARCH_PERFMON ( 3*32+11) /* Intel Architectural PerfMon */
+#define X86_FEATURE_PEBS ( 3*32+12) /* Precise-Event Based Sampling */
+#define X86_FEATURE_BTS ( 3*32+13) /* Branch Trace Store */
+#define X86_FEATURE_SYSCALL32 ( 3*32+14) /* "" syscall in IA32 userspace */
+#define X86_FEATURE_SYSENTER32 ( 3*32+15) /* "" sysenter in IA32 userspace */
+#define X86_FEATURE_REP_GOOD ( 3*32+16) /* REP microcode works well */
+#define X86_FEATURE_AMD_LBR_V2 ( 3*32+17) /* AMD Last Branch Record Extension Version 2 */
+/* FREE, was #define X86_FEATURE_LFENCE_RDTSC ( 3*32+18) "" LFENCE synchronizes RDTSC */
+#define X86_FEATURE_ACC_POWER ( 3*32+19) /* AMD Accumulated Power Mechanism */
+#define X86_FEATURE_NOPL ( 3*32+20) /* The NOPL (0F 1F) instructions */
+#define X86_FEATURE_ALWAYS ( 3*32+21) /* "" Always-present feature */
+#define X86_FEATURE_XTOPOLOGY ( 3*32+22) /* CPU topology enum extensions */
+#define X86_FEATURE_TSC_RELIABLE ( 3*32+23) /* TSC is known to be reliable */
+#define X86_FEATURE_NONSTOP_TSC ( 3*32+24) /* TSC does not stop in C states */
+#define X86_FEATURE_CPUID ( 3*32+25) /* CPU has CPUID instruction itself */
+#define X86_FEATURE_EXTD_APICID ( 3*32+26) /* Extended APICID (8 bits) */
+#define X86_FEATURE_AMD_DCM ( 3*32+27) /* AMD multi-node processor */
+#define X86_FEATURE_APERFMPERF ( 3*32+28) /* P-State hardware coordination feedback capability (APERF/MPERF MSRs) */
+#define X86_FEATURE_RAPL ( 3*32+29) /* AMD/Hygon RAPL interface */
+#define X86_FEATURE_NONSTOP_TSC_S3 ( 3*32+30) /* TSC doesn't stop in S3 state */
+#define X86_FEATURE_TSC_KNOWN_FREQ ( 3*32+31) /* TSC has known frequency */
+
+/* Intel-defined CPU features, CPUID level 0x00000001 (ECX), word 4 */
+#define X86_FEATURE_XMM3 ( 4*32+ 0) /* "pni" SSE-3 */
+#define X86_FEATURE_PCLMULQDQ ( 4*32+ 1) /* PCLMULQDQ instruction */
+#define X86_FEATURE_DTES64 ( 4*32+ 2) /* 64-bit Debug Store */
+#define X86_FEATURE_MWAIT ( 4*32+ 3) /* "monitor" MONITOR/MWAIT support */
+#define X86_FEATURE_DSCPL ( 4*32+ 4) /* "ds_cpl" CPL-qualified (filtered) Debug Store */
+#define X86_FEATURE_VMX ( 4*32+ 5) /* Hardware virtualization */
+#define X86_FEATURE_SMX ( 4*32+ 6) /* Safer Mode eXtensions */
+#define X86_FEATURE_EST ( 4*32+ 7) /* Enhanced SpeedStep */
+#define X86_FEATURE_TM2 ( 4*32+ 8) /* Thermal Monitor 2 */
+#define X86_FEATURE_SSSE3 ( 4*32+ 9) /* Supplemental SSE-3 */
+#define X86_FEATURE_CID ( 4*32+10) /* Context ID */
+#define X86_FEATURE_SDBG ( 4*32+11) /* Silicon Debug */
+#define X86_FEATURE_FMA ( 4*32+12) /* Fused multiply-add */
+#define X86_FEATURE_CX16 ( 4*32+13) /* CMPXCHG16B instruction */
+#define X86_FEATURE_XTPR ( 4*32+14) /* Send Task Priority Messages */
+#define X86_FEATURE_PDCM ( 4*32+15) /* Perf/Debug Capabilities MSR */
+#define X86_FEATURE_PCID ( 4*32+17) /* Process Context Identifiers */
+#define X86_FEATURE_DCA ( 4*32+18) /* Direct Cache Access */
+#define X86_FEATURE_XMM4_1 ( 4*32+19) /* "sse4_1" SSE-4.1 */
+#define X86_FEATURE_XMM4_2 ( 4*32+20) /* "sse4_2" SSE-4.2 */
+#define X86_FEATURE_X2APIC ( 4*32+21) /* X2APIC */
+#define X86_FEATURE_MOVBE ( 4*32+22) /* MOVBE instruction */
+#define X86_FEATURE_POPCNT ( 4*32+23) /* POPCNT instruction */
+#define X86_FEATURE_TSC_DEADLINE_TIMER ( 4*32+24) /* TSC deadline timer */
+#define X86_FEATURE_AES ( 4*32+25) /* AES instructions */
+#define X86_FEATURE_XSAVE ( 4*32+26) /* XSAVE/XRSTOR/XSETBV/XGETBV instructions */
+#define X86_FEATURE_OSXSAVE ( 4*32+27) /* "" XSAVE instruction enabled in the OS */
+#define X86_FEATURE_AVX ( 4*32+28) /* Advanced Vector Extensions */
+#define X86_FEATURE_F16C ( 4*32+29) /* 16-bit FP conversions */
+#define X86_FEATURE_RDRAND ( 4*32+30) /* RDRAND instruction */
+#define X86_FEATURE_HYPERVISOR ( 4*32+31) /* Running on a hypervisor */
+
+/* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */
+#define X86_FEATURE_XSTORE ( 5*32+ 2) /* "rng" RNG present (xstore) */
+#define X86_FEATURE_XSTORE_EN ( 5*32+ 3) /* "rng_en" RNG enabled */
+#define X86_FEATURE_XCRYPT ( 5*32+ 6) /* "ace" on-CPU crypto (xcrypt) */
+#define X86_FEATURE_XCRYPT_EN ( 5*32+ 7) /* "ace_en" on-CPU crypto enabled */
+#define X86_FEATURE_ACE2 ( 5*32+ 8) /* Advanced Cryptography Engine v2 */
+#define X86_FEATURE_ACE2_EN ( 5*32+ 9) /* ACE v2 enabled */
+#define X86_FEATURE_PHE ( 5*32+10) /* PadLock Hash Engine */
+#define X86_FEATURE_PHE_EN ( 5*32+11) /* PHE enabled */
+#define X86_FEATURE_PMM ( 5*32+12) /* PadLock Montgomery Multiplier */
+#define X86_FEATURE_PMM_EN ( 5*32+13) /* PMM enabled */
+
+/* More extended AMD flags: CPUID level 0x80000001, ECX, word 6 */
+#define X86_FEATURE_LAHF_LM ( 6*32+ 0) /* LAHF/SAHF in long mode */
+#define X86_FEATURE_CMP_LEGACY ( 6*32+ 1) /* If yes HyperThreading not valid */
+#define X86_FEATURE_SVM ( 6*32+ 2) /* Secure Virtual Machine */
+#define X86_FEATURE_EXTAPIC ( 6*32+ 3) /* Extended APIC space */
+#define X86_FEATURE_CR8_LEGACY ( 6*32+ 4) /* CR8 in 32-bit mode */
+#define X86_FEATURE_ABM ( 6*32+ 5) /* Advanced bit manipulation */
+#define X86_FEATURE_SSE4A ( 6*32+ 6) /* SSE-4A */
+#define X86_FEATURE_MISALIGNSSE ( 6*32+ 7) /* Misaligned SSE mode */
+#define X86_FEATURE_3DNOWPREFETCH ( 6*32+ 8) /* 3DNow prefetch instructions */
+#define X86_FEATURE_OSVW ( 6*32+ 9) /* OS Visible Workaround */
+#define X86_FEATURE_IBS ( 6*32+10) /* Instruction Based Sampling */
+#define X86_FEATURE_XOP ( 6*32+11) /* extended AVX instructions */
+#define X86_FEATURE_SKINIT ( 6*32+12) /* SKINIT/STGI instructions */
+#define X86_FEATURE_WDT ( 6*32+13) /* Watchdog timer */
+#define X86_FEATURE_LWP ( 6*32+15) /* Light Weight Profiling */
+#define X86_FEATURE_FMA4 ( 6*32+16) /* 4 operands MAC instructions */
+#define X86_FEATURE_TCE ( 6*32+17) /* Translation Cache Extension */
+#define X86_FEATURE_NODEID_MSR ( 6*32+19) /* NodeId MSR */
+#define X86_FEATURE_TBM ( 6*32+21) /* Trailing Bit Manipulations */
+#define X86_FEATURE_TOPOEXT ( 6*32+22) /* Topology extensions CPUID leafs */
+#define X86_FEATURE_PERFCTR_CORE ( 6*32+23) /* Core performance counter extensions */
+#define X86_FEATURE_PERFCTR_NB ( 6*32+24) /* NB performance counter extensions */
+#define X86_FEATURE_BPEXT ( 6*32+26) /* Data breakpoint extension */
+#define X86_FEATURE_PTSC ( 6*32+27) /* Performance time-stamp counter */
+#define X86_FEATURE_PERFCTR_LLC ( 6*32+28) /* Last Level Cache performance counter extensions */
+#define X86_FEATURE_MWAITX ( 6*32+29) /* MWAIT extension (MONITORX/MWAITX instructions) */
+
+/*
+ * Auxiliary flags: Linux defined - For features scattered in various
+ * CPUID levels like 0x6, 0xA etc, word 7.
+ *
+ * Reuse free bits when adding new feature flags!
+ */
+#define X86_FEATURE_RING3MWAIT ( 7*32+ 0) /* Ring 3 MONITOR/MWAIT instructions */
+#define X86_FEATURE_CPUID_FAULT ( 7*32+ 1) /* Intel CPUID faulting */
+#define X86_FEATURE_CPB ( 7*32+ 2) /* AMD Core Performance Boost */
+#define X86_FEATURE_EPB ( 7*32+ 3) /* IA32_ENERGY_PERF_BIAS support */
+#define X86_FEATURE_CAT_L3 ( 7*32+ 4) /* Cache Allocation Technology L3 */
+#define X86_FEATURE_CAT_L2 ( 7*32+ 5) /* Cache Allocation Technology L2 */
+#define X86_FEATURE_CDP_L3 ( 7*32+ 6) /* Code and Data Prioritization L3 */
+#define X86_FEATURE_INVPCID_SINGLE ( 7*32+ 7) /* Effectively INVPCID && CR4.PCIDE=1 */
+#define X86_FEATURE_HW_PSTATE ( 7*32+ 8) /* AMD HW-PState */
+#define X86_FEATURE_PROC_FEEDBACK ( 7*32+ 9) /* AMD ProcFeedbackInterface */
+#define X86_FEATURE_XCOMPACTED ( 7*32+10) /* "" Use compacted XSTATE (XSAVES or XSAVEC) */
+#define X86_FEATURE_PTI ( 7*32+11) /* Kernel Page Table Isolation enabled */
+#define X86_FEATURE_KERNEL_IBRS ( 7*32+12) /* "" Set/clear IBRS on kernel entry/exit */
+#define X86_FEATURE_RSB_VMEXIT ( 7*32+13) /* "" Fill RSB on VM-Exit */
+#define X86_FEATURE_INTEL_PPIN ( 7*32+14) /* Intel Processor Inventory Number */
+#define X86_FEATURE_CDP_L2 ( 7*32+15) /* Code and Data Prioritization L2 */
+#define X86_FEATURE_MSR_SPEC_CTRL ( 7*32+16) /* "" MSR SPEC_CTRL is implemented */
+#define X86_FEATURE_SSBD ( 7*32+17) /* Speculative Store Bypass Disable */
+#define X86_FEATURE_MBA ( 7*32+18) /* Memory Bandwidth Allocation */
+#define X86_FEATURE_RSB_CTXSW ( 7*32+19) /* "" Fill RSB on context switches */
+#define X86_FEATURE_PERFMON_V2 ( 7*32+20) /* AMD Performance Monitoring Version 2 */
+#define X86_FEATURE_USE_IBPB ( 7*32+21) /* "" Indirect Branch Prediction Barrier enabled */
+#define X86_FEATURE_USE_IBRS_FW ( 7*32+22) /* "" Use IBRS during runtime firmware calls */
+#define X86_FEATURE_SPEC_STORE_BYPASS_DISABLE ( 7*32+23) /* "" Disable Speculative Store Bypass. */
+#define X86_FEATURE_LS_CFG_SSBD ( 7*32+24) /* "" AMD SSBD implementation via LS_CFG MSR */
+#define X86_FEATURE_IBRS ( 7*32+25) /* Indirect Branch Restricted Speculation */
+#define X86_FEATURE_IBPB ( 7*32+26) /* Indirect Branch Prediction Barrier */
+#define X86_FEATURE_STIBP ( 7*32+27) /* Single Thread Indirect Branch Predictors */
+#define X86_FEATURE_ZEN (7*32+28) /* "" CPU based on Zen microarchitecture */
+#define X86_FEATURE_L1TF_PTEINV ( 7*32+29) /* "" L1TF workaround PTE inversion */
+#define X86_FEATURE_IBRS_ENHANCED ( 7*32+30) /* Enhanced IBRS */
+#define X86_FEATURE_MSR_IA32_FEAT_CTL ( 7*32+31) /* "" MSR IA32_FEAT_CTL configured */
+
+/* Virtualization flags: Linux defined, word 8 */
+#define X86_FEATURE_TPR_SHADOW ( 8*32+ 0) /* Intel TPR Shadow */
+#define X86_FEATURE_FLEXPRIORITY ( 8*32+ 1) /* Intel FlexPriority */
+#define X86_FEATURE_EPT ( 8*32+ 2) /* Intel Extended Page Table */
+#define X86_FEATURE_VPID ( 8*32+ 3) /* Intel Virtual Processor ID */
+
+#define X86_FEATURE_VMMCALL ( 8*32+15) /* Prefer VMMCALL to VMCALL */
+#define X86_FEATURE_XENPV ( 8*32+16) /* "" Xen paravirtual guest */
+#define X86_FEATURE_EPT_AD ( 8*32+17) /* Intel Extended Page Table access-dirty bit */
+#define X86_FEATURE_VMCALL ( 8*32+18) /* "" Hypervisor supports the VMCALL instruction */
+#define X86_FEATURE_VMW_VMMCALL ( 8*32+19) /* "" VMware prefers VMMCALL hypercall instruction */
+#define X86_FEATURE_PVUNLOCK ( 8*32+20) /* "" PV unlock function */
+#define X86_FEATURE_VCPUPREEMPT ( 8*32+21) /* "" PV vcpu_is_preempted function */
+#define X86_FEATURE_TDX_GUEST ( 8*32+22) /* Intel Trust Domain Extensions Guest */
+
+/* Intel-defined CPU features, CPUID level 0x00000007:0 (EBX), word 9 */
+#define X86_FEATURE_FSGSBASE ( 9*32+ 0) /* RDFSBASE, WRFSBASE, RDGSBASE, WRGSBASE instructions*/
+#define X86_FEATURE_TSC_ADJUST ( 9*32+ 1) /* TSC adjustment MSR 0x3B */
+#define X86_FEATURE_SGX ( 9*32+ 2) /* Software Guard Extensions */
+#define X86_FEATURE_BMI1 ( 9*32+ 3) /* 1st group bit manipulation extensions */
+#define X86_FEATURE_HLE ( 9*32+ 4) /* Hardware Lock Elision */
+#define X86_FEATURE_AVX2 ( 9*32+ 5) /* AVX2 instructions */
+#define X86_FEATURE_FDP_EXCPTN_ONLY ( 9*32+ 6) /* "" FPU data pointer updated only on x87 exceptions */
+#define X86_FEATURE_SMEP ( 9*32+ 7) /* Supervisor Mode Execution Protection */
+#define X86_FEATURE_BMI2 ( 9*32+ 8) /* 2nd group bit manipulation extensions */
+#define X86_FEATURE_ERMS ( 9*32+ 9) /* Enhanced REP MOVSB/STOSB instructions */
+#define X86_FEATURE_INVPCID ( 9*32+10) /* Invalidate Processor Context ID */
+#define X86_FEATURE_RTM ( 9*32+11) /* Restricted Transactional Memory */
+#define X86_FEATURE_CQM ( 9*32+12) /* Cache QoS Monitoring */
+#define X86_FEATURE_ZERO_FCS_FDS ( 9*32+13) /* "" Zero out FPU CS and FPU DS */
+#define X86_FEATURE_MPX ( 9*32+14) /* Memory Protection Extension */
+#define X86_FEATURE_RDT_A ( 9*32+15) /* Resource Director Technology Allocation */
+#define X86_FEATURE_AVX512F ( 9*32+16) /* AVX-512 Foundation */
+#define X86_FEATURE_AVX512DQ ( 9*32+17) /* AVX-512 DQ (Double/Quad granular) Instructions */
+#define X86_FEATURE_RDSEED ( 9*32+18) /* RDSEED instruction */
+#define X86_FEATURE_ADX ( 9*32+19) /* ADCX and ADOX instructions */
+#define X86_FEATURE_SMAP ( 9*32+20) /* Supervisor Mode Access Prevention */
+#define X86_FEATURE_AVX512IFMA ( 9*32+21) /* AVX-512 Integer Fused Multiply-Add instructions */
+#define X86_FEATURE_CLFLUSHOPT ( 9*32+23) /* CLFLUSHOPT instruction */
+#define X86_FEATURE_CLWB ( 9*32+24) /* CLWB instruction */
+#define X86_FEATURE_INTEL_PT ( 9*32+25) /* Intel Processor Trace */
+#define X86_FEATURE_AVX512PF ( 9*32+26) /* AVX-512 Prefetch */
+#define X86_FEATURE_AVX512ER ( 9*32+27) /* AVX-512 Exponential and Reciprocal */
+#define X86_FEATURE_AVX512CD ( 9*32+28) /* AVX-512 Conflict Detection */
+#define X86_FEATURE_SHA_NI ( 9*32+29) /* SHA1/SHA256 Instruction Extensions */
+#define X86_FEATURE_AVX512BW ( 9*32+30) /* AVX-512 BW (Byte/Word granular) Instructions */
+#define X86_FEATURE_AVX512VL ( 9*32+31) /* AVX-512 VL (128/256 Vector Length) Extensions */
+
+/* Extended state features, CPUID level 0x0000000d:1 (EAX), word 10 */
+#define X86_FEATURE_XSAVEOPT (10*32+ 0) /* XSAVEOPT instruction */
+#define X86_FEATURE_XSAVEC (10*32+ 1) /* XSAVEC instruction */
+#define X86_FEATURE_XGETBV1 (10*32+ 2) /* XGETBV with ECX = 1 instruction */
+#define X86_FEATURE_XSAVES (10*32+ 3) /* XSAVES/XRSTORS instructions */
+#define X86_FEATURE_XFD (10*32+ 4) /* "" eXtended Feature Disabling */
+
+/*
+ * Extended auxiliary flags: Linux defined - for features scattered in various
+ * CPUID levels like 0xf, etc.
+ *
+ * Reuse free bits when adding new feature flags!
+ */
+#define X86_FEATURE_CQM_LLC (11*32+ 0) /* LLC QoS if 1 */
+#define X86_FEATURE_CQM_OCCUP_LLC (11*32+ 1) /* LLC occupancy monitoring */
+#define X86_FEATURE_CQM_MBM_TOTAL (11*32+ 2) /* LLC Total MBM monitoring */
+#define X86_FEATURE_CQM_MBM_LOCAL (11*32+ 3) /* LLC Local MBM monitoring */
+#define X86_FEATURE_FENCE_SWAPGS_USER (11*32+ 4) /* "" LFENCE in user entry SWAPGS path */
+#define X86_FEATURE_FENCE_SWAPGS_KERNEL (11*32+ 5) /* "" LFENCE in kernel entry SWAPGS path */
+#define X86_FEATURE_SPLIT_LOCK_DETECT (11*32+ 6) /* #AC for split lock */
+#define X86_FEATURE_PER_THREAD_MBA (11*32+ 7) /* "" Per-thread Memory Bandwidth Allocation */
+#define X86_FEATURE_SGX1 (11*32+ 8) /* "" Basic SGX */
+#define X86_FEATURE_SGX2 (11*32+ 9) /* "" SGX Enclave Dynamic Memory Management (EDMM) */
+#define X86_FEATURE_ENTRY_IBPB (11*32+10) /* "" Issue an IBPB on kernel entry */
+#define X86_FEATURE_RRSBA_CTRL (11*32+11) /* "" RET prediction control */
+#define X86_FEATURE_RETPOLINE (11*32+12) /* "" Generic Retpoline mitigation for Spectre variant 2 */
+#define X86_FEATURE_RETPOLINE_LFENCE (11*32+13) /* "" Use LFENCE for Spectre variant 2 */
+#define X86_FEATURE_RETHUNK (11*32+14) /* "" Use REturn THUNK */
+#define X86_FEATURE_UNRET (11*32+15) /* "" AMD BTB untrain return */
+#define X86_FEATURE_USE_IBPB_FW (11*32+16) /* "" Use IBPB during runtime firmware calls */
+#define X86_FEATURE_RSB_VMEXIT_LITE (11*32+17) /* "" Fill RSB on VM exit when EIBRS is enabled */
+#define X86_FEATURE_SGX_EDECCSSA (11*32+18) /* "" SGX EDECCSSA user leaf function */
+#define X86_FEATURE_CALL_DEPTH (11*32+19) /* "" Call depth tracking for RSB stuffing */
+#define X86_FEATURE_MSR_TSX_CTRL (11*32+20) /* "" MSR IA32_TSX_CTRL (Intel) implemented */
+#define X86_FEATURE_SMBA (11*32+21) /* "" Slow Memory Bandwidth Allocation */
+#define X86_FEATURE_BMEC (11*32+22) /* "" Bandwidth Monitoring Event Configuration */
+
+/* Intel-defined CPU features, CPUID level 0x00000007:1 (EAX), word 12 */
+#define X86_FEATURE_AVX_VNNI (12*32+ 4) /* AVX VNNI instructions */
+#define X86_FEATURE_AVX512_BF16 (12*32+ 5) /* AVX512 BFLOAT16 instructions */
+#define X86_FEATURE_CMPCCXADD (12*32+ 7) /* "" CMPccXADD instructions */
+#define X86_FEATURE_ARCH_PERFMON_EXT (12*32+ 8) /* "" Intel Architectural PerfMon Extension */
+#define X86_FEATURE_FZRM (12*32+10) /* "" Fast zero-length REP MOVSB */
+#define X86_FEATURE_FSRS (12*32+11) /* "" Fast short REP STOSB */
+#define X86_FEATURE_FSRC (12*32+12) /* "" Fast short REP {CMPSB,SCASB} */
+#define X86_FEATURE_LKGS (12*32+18) /* "" Load "kernel" (userspace) GS */
+#define X86_FEATURE_AMX_FP16 (12*32+21) /* "" AMX fp16 Support */
+#define X86_FEATURE_AVX_IFMA (12*32+23) /* "" Support for VPMADD52[H,L]UQ */
+#define X86_FEATURE_LAM (12*32+26) /* Linear Address Masking */
+
+/* AMD-defined CPU features, CPUID level 0x80000008 (EBX), word 13 */
+#define X86_FEATURE_CLZERO (13*32+ 0) /* CLZERO instruction */
+#define X86_FEATURE_IRPERF (13*32+ 1) /* Instructions Retired Count */
+#define X86_FEATURE_XSAVEERPTR (13*32+ 2) /* Always save/restore FP error pointers */
+#define X86_FEATURE_RDPRU (13*32+ 4) /* Read processor register at user level */
+#define X86_FEATURE_WBNOINVD (13*32+ 9) /* WBNOINVD instruction */
+#define X86_FEATURE_AMD_IBPB (13*32+12) /* "" Indirect Branch Prediction Barrier */
+#define X86_FEATURE_AMD_IBRS (13*32+14) /* "" Indirect Branch Restricted Speculation */
+#define X86_FEATURE_AMD_STIBP (13*32+15) /* "" Single Thread Indirect Branch Predictors */
+#define X86_FEATURE_AMD_STIBP_ALWAYS_ON (13*32+17) /* "" Single Thread Indirect Branch Predictors always-on preferred */
+#define X86_FEATURE_AMD_PPIN (13*32+23) /* Protected Processor Inventory Number */
+#define X86_FEATURE_AMD_SSBD (13*32+24) /* "" Speculative Store Bypass Disable */
+#define X86_FEATURE_VIRT_SSBD (13*32+25) /* Virtualized Speculative Store Bypass Disable */
+#define X86_FEATURE_AMD_SSB_NO (13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */
+#define X86_FEATURE_CPPC (13*32+27) /* Collaborative Processor Performance Control */
+#define X86_FEATURE_AMD_PSFD (13*32+28) /* "" Predictive Store Forwarding Disable */
+#define X86_FEATURE_BTC_NO (13*32+29) /* "" Not vulnerable to Branch Type Confusion */
+#define X86_FEATURE_BRS (13*32+31) /* Branch Sampling available */
+
+/* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */
+#define X86_FEATURE_DTHERM (14*32+ 0) /* Digital Thermal Sensor */
+#define X86_FEATURE_IDA (14*32+ 1) /* Intel Dynamic Acceleration */
+#define X86_FEATURE_ARAT (14*32+ 2) /* Always Running APIC Timer */
+#define X86_FEATURE_PLN (14*32+ 4) /* Intel Power Limit Notification */
+#define X86_FEATURE_PTS (14*32+ 6) /* Intel Package Thermal Status */
+#define X86_FEATURE_HWP (14*32+ 7) /* Intel Hardware P-states */
+#define X86_FEATURE_HWP_NOTIFY (14*32+ 8) /* HWP Notification */
+#define X86_FEATURE_HWP_ACT_WINDOW (14*32+ 9) /* HWP Activity Window */
+#define X86_FEATURE_HWP_EPP (14*32+10) /* HWP Energy Perf. Preference */
+#define X86_FEATURE_HWP_PKG_REQ (14*32+11) /* HWP Package Level Request */
+#define X86_FEATURE_HFI (14*32+19) /* Hardware Feedback Interface */
+
+/* AMD SVM Feature Identification, CPUID level 0x8000000a (EDX), word 15 */
+#define X86_FEATURE_NPT (15*32+ 0) /* Nested Page Table support */
+#define X86_FEATURE_LBRV (15*32+ 1) /* LBR Virtualization support */
+#define X86_FEATURE_SVML (15*32+ 2) /* "svm_lock" SVM locking MSR */
+#define X86_FEATURE_NRIPS (15*32+ 3) /* "nrip_save" SVM next_rip save */
+#define X86_FEATURE_TSCRATEMSR (15*32+ 4) /* "tsc_scale" TSC scaling support */
+#define X86_FEATURE_VMCBCLEAN (15*32+ 5) /* "vmcb_clean" VMCB clean bits support */
+#define X86_FEATURE_FLUSHBYASID (15*32+ 6) /* flush-by-ASID support */
+#define X86_FEATURE_DECODEASSISTS (15*32+ 7) /* Decode Assists support */
+#define X86_FEATURE_PAUSEFILTER (15*32+10) /* filtered pause intercept */
+#define X86_FEATURE_PFTHRESHOLD (15*32+12) /* pause filter threshold */
+#define X86_FEATURE_AVIC (15*32+13) /* Virtual Interrupt Controller */
+#define X86_FEATURE_V_VMSAVE_VMLOAD (15*32+15) /* Virtual VMSAVE VMLOAD */
+#define X86_FEATURE_VGIF (15*32+16) /* Virtual GIF */
+#define X86_FEATURE_X2AVIC (15*32+18) /* Virtual x2apic */
+#define X86_FEATURE_V_SPEC_CTRL (15*32+20) /* Virtual SPEC_CTRL */
+#define X86_FEATURE_VNMI (15*32+25) /* Virtual NMI */
+#define X86_FEATURE_SVME_ADDR_CHK (15*32+28) /* "" SVME addr check */
+
+/* Intel-defined CPU features, CPUID level 0x00000007:0 (ECX), word 16 */
+#define X86_FEATURE_AVX512VBMI (16*32+ 1) /* AVX512 Vector Bit Manipulation instructions*/
+#define X86_FEATURE_UMIP (16*32+ 2) /* User Mode Instruction Protection */
+#define X86_FEATURE_PKU (16*32+ 3) /* Protection Keys for Userspace */
+#define X86_FEATURE_OSPKE (16*32+ 4) /* OS Protection Keys Enable */
+#define X86_FEATURE_WAITPKG (16*32+ 5) /* UMONITOR/UMWAIT/TPAUSE Instructions */
+#define X86_FEATURE_AVX512_VBMI2 (16*32+ 6) /* Additional AVX512 Vector Bit Manipulation Instructions */
+#define X86_FEATURE_GFNI (16*32+ 8) /* Galois Field New Instructions */
+#define X86_FEATURE_VAES (16*32+ 9) /* Vector AES */
+#define X86_FEATURE_VPCLMULQDQ (16*32+10) /* Carry-Less Multiplication Double Quadword */
+#define X86_FEATURE_AVX512_VNNI (16*32+11) /* Vector Neural Network Instructions */
+#define X86_FEATURE_AVX512_BITALG (16*32+12) /* Support for VPOPCNT[B,W] and VPSHUF-BITQMB instructions */
+#define X86_FEATURE_TME (16*32+13) /* Intel Total Memory Encryption */
+#define X86_FEATURE_AVX512_VPOPCNTDQ (16*32+14) /* POPCNT for vectors of DW/QW */
+#define X86_FEATURE_LA57 (16*32+16) /* 5-level page tables */
+#define X86_FEATURE_RDPID (16*32+22) /* RDPID instruction */
+#define X86_FEATURE_BUS_LOCK_DETECT (16*32+24) /* Bus Lock detect */
+#define X86_FEATURE_CLDEMOTE (16*32+25) /* CLDEMOTE instruction */
+#define X86_FEATURE_MOVDIRI (16*32+27) /* MOVDIRI instruction */
+#define X86_FEATURE_MOVDIR64B (16*32+28) /* MOVDIR64B instruction */
+#define X86_FEATURE_ENQCMD (16*32+29) /* ENQCMD and ENQCMDS instructions */
+#define X86_FEATURE_SGX_LC (16*32+30) /* Software Guard Extensions Launch Control */
+
+/* AMD-defined CPU features, CPUID level 0x80000007 (EBX), word 17 */
+#define X86_FEATURE_OVERFLOW_RECOV (17*32+ 0) /* MCA overflow recovery support */
+#define X86_FEATURE_SUCCOR (17*32+ 1) /* Uncorrectable error containment and recovery */
+#define X86_FEATURE_SMCA (17*32+ 3) /* Scalable MCA */
+
+/* Intel-defined CPU features, CPUID level 0x00000007:0 (EDX), word 18 */
+#define X86_FEATURE_AVX512_4VNNIW (18*32+ 2) /* AVX-512 Neural Network Instructions */
+#define X86_FEATURE_AVX512_4FMAPS (18*32+ 3) /* AVX-512 Multiply Accumulation Single precision */
+#define X86_FEATURE_FSRM (18*32+ 4) /* Fast Short Rep Mov */
+#define X86_FEATURE_AVX512_VP2INTERSECT (18*32+ 8) /* AVX-512 Intersect for D/Q */
+#define X86_FEATURE_SRBDS_CTRL (18*32+ 9) /* "" SRBDS mitigation MSR available */
+#define X86_FEATURE_MD_CLEAR (18*32+10) /* VERW clears CPU buffers */
+#define X86_FEATURE_RTM_ALWAYS_ABORT (18*32+11) /* "" RTM transaction always aborts */
+#define X86_FEATURE_TSX_FORCE_ABORT (18*32+13) /* "" TSX_FORCE_ABORT */
+#define X86_FEATURE_SERIALIZE (18*32+14) /* SERIALIZE instruction */
+#define X86_FEATURE_HYBRID_CPU (18*32+15) /* "" This part has CPUs of more than one type */
+#define X86_FEATURE_TSXLDTRK (18*32+16) /* TSX Suspend Load Address Tracking */
+#define X86_FEATURE_PCONFIG (18*32+18) /* Intel PCONFIG */
+#define X86_FEATURE_ARCH_LBR (18*32+19) /* Intel ARCH LBR */
+#define X86_FEATURE_IBT (18*32+20) /* Indirect Branch Tracking */
+#define X86_FEATURE_AMX_BF16 (18*32+22) /* AMX bf16 Support */
+#define X86_FEATURE_AVX512_FP16 (18*32+23) /* AVX512 FP16 */
+#define X86_FEATURE_AMX_TILE (18*32+24) /* AMX tile Support */
+#define X86_FEATURE_AMX_INT8 (18*32+25) /* AMX int8 Support */
+#define X86_FEATURE_SPEC_CTRL (18*32+26) /* "" Speculation Control (IBRS + IBPB) */
+#define X86_FEATURE_INTEL_STIBP (18*32+27) /* "" Single Thread Indirect Branch Predictors */
+#define X86_FEATURE_FLUSH_L1D (18*32+28) /* Flush L1D cache */
+#define X86_FEATURE_ARCH_CAPABILITIES (18*32+29) /* IA32_ARCH_CAPABILITIES MSR (Intel) */
+#define X86_FEATURE_CORE_CAPABILITIES (18*32+30) /* "" IA32_CORE_CAPABILITIES MSR */
+#define X86_FEATURE_SPEC_CTRL_SSBD (18*32+31) /* "" Speculative Store Bypass Disable */
+
+/* AMD-defined memory encryption features, CPUID level 0x8000001f (EAX), word 19 */
+#define X86_FEATURE_SME (19*32+ 0) /* AMD Secure Memory Encryption */
+#define X86_FEATURE_SEV (19*32+ 1) /* AMD Secure Encrypted Virtualization */
+#define X86_FEATURE_VM_PAGE_FLUSH (19*32+ 2) /* "" VM Page Flush MSR is supported */
+#define X86_FEATURE_SEV_ES (19*32+ 3) /* AMD Secure Encrypted Virtualization - Encrypted State */
+#define X86_FEATURE_V_TSC_AUX (19*32+ 9) /* "" Virtual TSC_AUX */
+#define X86_FEATURE_SME_COHERENT (19*32+10) /* "" AMD hardware-enforced cache coherency */
+
+/* AMD-defined Extended Feature 2 EAX, CPUID level 0x80000021 (EAX), word 20 */
+#define X86_FEATURE_NO_NESTED_DATA_BP (20*32+ 0) /* "" No Nested Data Breakpoints */
+#define X86_FEATURE_LFENCE_RDTSC (20*32+ 2) /* "" LFENCE always serializing / synchronizes RDTSC */
+#define X86_FEATURE_NULL_SEL_CLR_BASE (20*32+ 6) /* "" Null Selector Clears Base */
+#define X86_FEATURE_AUTOIBRS (20*32+ 8) /* "" Automatic IBRS */
+#define X86_FEATURE_NO_SMM_CTL_MSR (20*32+ 9) /* "" SMM_CTL MSR is not present */
+
+/*
+ * BUG word(s)
+ */
+#define X86_BUG(x) (NCAPINTS*32 + (x))
+
+#define X86_BUG_F00F X86_BUG(0) /* Intel F00F */
+#define X86_BUG_FDIV X86_BUG(1) /* FPU FDIV */
+#define X86_BUG_COMA X86_BUG(2) /* Cyrix 6x86 coma */
+#define X86_BUG_AMD_TLB_MMATCH X86_BUG(3) /* "tlb_mmatch" AMD Erratum 383 */
+#define X86_BUG_AMD_APIC_C1E X86_BUG(4) /* "apic_c1e" AMD Erratum 400 */
+#define X86_BUG_11AP X86_BUG(5) /* Bad local APIC aka 11AP */
+#define X86_BUG_FXSAVE_LEAK X86_BUG(6) /* FXSAVE leaks FOP/FIP/FOP */
+#define X86_BUG_CLFLUSH_MONITOR X86_BUG(7) /* AAI65, CLFLUSH required before MONITOR */
+#define X86_BUG_SYSRET_SS_ATTRS X86_BUG(8) /* SYSRET doesn't fix up SS attrs */
+#ifdef CONFIG_X86_32
+/*
+ * 64-bit kernels don't use X86_BUG_ESPFIX. Make the define conditional
+ * to avoid confusion.
+ */
+#define X86_BUG_ESPFIX X86_BUG(9) /* "" IRET to 16-bit SS corrupts ESP/RSP high bits */
+#endif
+#define X86_BUG_NULL_SEG X86_BUG(10) /* Nulling a selector preserves the base */
+#define X86_BUG_SWAPGS_FENCE X86_BUG(11) /* SWAPGS without input dep on GS */
+#define X86_BUG_MONITOR X86_BUG(12) /* IPI required to wake up remote CPU */
+#define X86_BUG_AMD_E400 X86_BUG(13) /* CPU is among the affected by Erratum 400 */
+#define X86_BUG_CPU_MELTDOWN X86_BUG(14) /* CPU is affected by meltdown attack and needs kernel page table isolation */
+#define X86_BUG_SPECTRE_V1 X86_BUG(15) /* CPU is affected by Spectre variant 1 attack with conditional branches */
+#define X86_BUG_SPECTRE_V2 X86_BUG(16) /* CPU is affected by Spectre variant 2 attack with indirect branches */
+#define X86_BUG_SPEC_STORE_BYPASS X86_BUG(17) /* CPU is affected by speculative store bypass attack */
+#define X86_BUG_L1TF X86_BUG(18) /* CPU is affected by L1 Terminal Fault */
+#define X86_BUG_MDS X86_BUG(19) /* CPU is affected by Microarchitectural data sampling */
+#define X86_BUG_MSBDS_ONLY X86_BUG(20) /* CPU is only affected by the MSDBS variant of BUG_MDS */
+#define X86_BUG_SWAPGS X86_BUG(21) /* CPU is affected by speculation through SWAPGS */
+#define X86_BUG_TAA X86_BUG(22) /* CPU is affected by TSX Async Abort(TAA) */
+#define X86_BUG_ITLB_MULTIHIT X86_BUG(23) /* CPU may incur MCE during certain page attribute changes */
+#define X86_BUG_SRBDS X86_BUG(24) /* CPU may leak RNG bits if not mitigated */
+#define X86_BUG_MMIO_STALE_DATA X86_BUG(25) /* CPU is affected by Processor MMIO Stale Data vulnerabilities */
+#define X86_BUG_MMIO_UNKNOWN X86_BUG(26) /* CPU is too old and its MMIO Stale Data status is unknown */
+#define X86_BUG_RETBLEED X86_BUG(27) /* CPU is affected by RETBleed */
+#define X86_BUG_EIBRS_PBRSB X86_BUG(28) /* EIBRS is vulnerable to Post Barrier RSB Predictions */
+#define X86_BUG_SMT_RSB X86_BUG(29) /* CPU is vulnerable to Cross-Thread Return Address Predictions */
+
+#endif /* _ASM_X86_CPUFEATURES_H */
diff --git a/arch/x86/include/asm/cpuid.h b/arch/x86/include/asm/cpuid.h
new file mode 100644
index 000000000000..9bee3e7bf973
--- /dev/null
+++ b/arch/x86/include/asm/cpuid.h
@@ -0,0 +1,171 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * CPUID-related helpers/definitions
+ */
+
+#ifndef _ASM_X86_CPUID_H
+#define _ASM_X86_CPUID_H
+
+#include <asm/string.h>
+
+struct cpuid_regs {
+ u32 eax, ebx, ecx, edx;
+};
+
+enum cpuid_regs_idx {
+ CPUID_EAX = 0,
+ CPUID_EBX,
+ CPUID_ECX,
+ CPUID_EDX,
+};
+
+#ifdef CONFIG_X86_32
+extern int have_cpuid_p(void);
+#else
+static inline int have_cpuid_p(void)
+{
+ return 1;
+}
+#endif
+static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
+{
+ /* ecx is often an input as well as an output. */
+ asm volatile("cpuid"
+ : "=a" (*eax),
+ "=b" (*ebx),
+ "=c" (*ecx),
+ "=d" (*edx)
+ : "0" (*eax), "2" (*ecx)
+ : "memory");
+}
+
+#define native_cpuid_reg(reg) \
+static inline unsigned int native_cpuid_##reg(unsigned int op) \
+{ \
+ unsigned int eax = op, ebx, ecx = 0, edx; \
+ \
+ native_cpuid(&eax, &ebx, &ecx, &edx); \
+ \
+ return reg; \
+}
+
+/*
+ * Native CPUID functions returning a single datum.
+ */
+native_cpuid_reg(eax)
+native_cpuid_reg(ebx)
+native_cpuid_reg(ecx)
+native_cpuid_reg(edx)
+
+#ifdef CONFIG_PARAVIRT_XXL
+#include <asm/paravirt.h>
+#else
+#define __cpuid native_cpuid
+#endif
+
+/*
+ * Generic CPUID function
+ * clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx
+ * resulting in stale register contents being returned.
+ */
+static inline void cpuid(unsigned int op,
+ unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
+{
+ *eax = op;
+ *ecx = 0;
+ __cpuid(eax, ebx, ecx, edx);
+}
+
+/* Some CPUID calls want 'count' to be placed in ecx */
+static inline void cpuid_count(unsigned int op, int count,
+ unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
+{
+ *eax = op;
+ *ecx = count;
+ __cpuid(eax, ebx, ecx, edx);
+}
+
+/*
+ * CPUID functions returning a single datum
+ */
+static inline unsigned int cpuid_eax(unsigned int op)
+{
+ unsigned int eax, ebx, ecx, edx;
+
+ cpuid(op, &eax, &ebx, &ecx, &edx);
+
+ return eax;
+}
+
+static inline unsigned int cpuid_ebx(unsigned int op)
+{
+ unsigned int eax, ebx, ecx, edx;
+
+ cpuid(op, &eax, &ebx, &ecx, &edx);
+
+ return ebx;
+}
+
+static inline unsigned int cpuid_ecx(unsigned int op)
+{
+ unsigned int eax, ebx, ecx, edx;
+
+ cpuid(op, &eax, &ebx, &ecx, &edx);
+
+ return ecx;
+}
+
+static inline unsigned int cpuid_edx(unsigned int op)
+{
+ unsigned int eax, ebx, ecx, edx;
+
+ cpuid(op, &eax, &ebx, &ecx, &edx);
+
+ return edx;
+}
+
+static __always_inline bool cpuid_function_is_indexed(u32 function)
+{
+ switch (function) {
+ case 4:
+ case 7:
+ case 0xb:
+ case 0xd:
+ case 0xf:
+ case 0x10:
+ case 0x12:
+ case 0x14:
+ case 0x17:
+ case 0x18:
+ case 0x1d:
+ case 0x1e:
+ case 0x1f:
+ case 0x8000001d:
+ return true;
+ }
+
+ return false;
+}
+
+#define for_each_possible_hypervisor_cpuid_base(function) \
+ for (function = 0x40000000; function < 0x40010000; function += 0x100)
+
+static inline uint32_t hypervisor_cpuid_base(const char *sig, uint32_t leaves)
+{
+ uint32_t base, eax, signature[3];
+
+ for_each_possible_hypervisor_cpuid_base(base) {
+ cpuid(base, &eax, &signature[0], &signature[1], &signature[2]);
+
+ if (!memcmp(sig, signature, 12) &&
+ (leaves == 0 || ((eax - base) >= leaves)))
+ return base;
+ }
+
+ return 0;
+}
+
+#endif /* _ASM_X86_CPUID_H */
diff --git a/arch/x86/include/asm/cpuidle_haltpoll.h b/arch/x86/include/asm/cpuidle_haltpoll.h
new file mode 100644
index 000000000000..c8b39c6716ff
--- /dev/null
+++ b/arch/x86/include/asm/cpuidle_haltpoll.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ARCH_HALTPOLL_H
+#define _ARCH_HALTPOLL_H
+
+void arch_haltpoll_enable(unsigned int cpu);
+void arch_haltpoll_disable(unsigned int cpu);
+
+#endif
diff --git a/arch/x86/include/asm/cpumask.h b/arch/x86/include/asm/cpumask.h
index 61c852fa346b..c5aed9e9226c 100644
--- a/arch/x86/include/asm/cpumask.h
+++ b/arch/x86/include/asm/cpumask.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CPUMASK_H
#define _ASM_X86_CPUMASK_H
#ifndef __ASSEMBLY__
@@ -10,5 +11,33 @@ extern cpumask_var_t cpu_sibling_setup_mask;
extern void setup_cpu_local_masks(void);
+/*
+ * NMI and MCE exceptions need cpu_is_offline() _really_ early,
+ * provide an arch_ special for them to avoid instrumentation.
+ */
+#if NR_CPUS > 1
+static __always_inline bool arch_cpu_online(int cpu)
+{
+ return arch_test_bit(cpu, cpumask_bits(cpu_online_mask));
+}
+
+static __always_inline void arch_cpumask_clear_cpu(int cpu, struct cpumask *dstp)
+{
+ arch_clear_bit(cpumask_check(cpu), cpumask_bits(dstp));
+}
+#else
+static __always_inline bool arch_cpu_online(int cpu)
+{
+ return cpu == 0;
+}
+
+static __always_inline void arch_cpumask_clear_cpu(int cpu, struct cpumask *dstp)
+{
+ return;
+}
+#endif
+
+#define arch_cpu_is_offline(cpu) unlikely(!arch_cpu_online(cpu))
+
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_CPUMASK_H */
diff --git a/arch/x86/include/asm/cputime.h b/arch/x86/include/asm/cputime.h
deleted file mode 100644
index 6d68ad7e0ea3..000000000000
--- a/arch/x86/include/asm/cputime.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/cputime.h>
diff --git a/arch/x86/include/asm/crash.h b/arch/x86/include/asm/crash.h
new file mode 100644
index 000000000000..8b6bd63530dc
--- /dev/null
+++ b/arch/x86/include/asm/crash.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_CRASH_H
+#define _ASM_X86_CRASH_H
+
+struct kimage;
+
+int crash_load_segments(struct kimage *image);
+int crash_setup_memmap_entries(struct kimage *image,
+ struct boot_params *params);
+void crash_smp_send_stop(void);
+
+#endif /* _ASM_X86_CRASH_H */
diff --git a/arch/x86/include/asm/current.h b/arch/x86/include/asm/current.h
index 4d447b732d82..a1168e7b69e5 100644
--- a/arch/x86/include/asm/current.h
+++ b/arch/x86/include/asm/current.h
@@ -1,17 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_CURRENT_H
#define _ASM_X86_CURRENT_H
#include <linux/compiler.h>
-#include <asm/percpu.h>
#ifndef __ASSEMBLY__
+
+#include <linux/cache.h>
+#include <asm/percpu.h>
+
struct task_struct;
-DECLARE_PER_CPU(struct task_struct *, current_task);
+struct pcpu_hot {
+ union {
+ struct {
+ struct task_struct *current_task;
+ int preempt_count;
+ int cpu_number;
+#ifdef CONFIG_CALL_DEPTH_TRACKING
+ u64 call_depth;
+#endif
+ unsigned long top_of_stack;
+ void *hardirq_stack_ptr;
+ u16 softirq_pending;
+#ifdef CONFIG_X86_64
+ bool hardirq_stack_inuse;
+#else
+ void *softirq_stack_ptr;
+#endif
+ };
+ u8 pad[64];
+ };
+};
+static_assert(sizeof(struct pcpu_hot) == 64);
+
+DECLARE_PER_CPU_ALIGNED(struct pcpu_hot, pcpu_hot);
static __always_inline struct task_struct *get_current(void)
{
- return percpu_read_stable(current_task);
+ return this_cpu_read_stable(pcpu_hot.current_task);
}
#define current get_current()
diff --git a/arch/x86/include/asm/debugreg.h b/arch/x86/include/asm/debugreg.h
index 078ad0caefc6..66eb5e1ac4fb 100644
--- a/arch/x86/include/asm/debugreg.h
+++ b/arch/x86/include/asm/debugreg.h
@@ -1,84 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_DEBUGREG_H
#define _ASM_X86_DEBUGREG_H
+#include <linux/bug.h>
+#include <linux/percpu.h>
+#include <uapi/asm/debugreg.h>
-/* Indicate the register numbers for a number of the specific
- debug registers. Registers 0-3 contain the addresses we wish to trap on */
-#define DR_FIRSTADDR 0 /* u_debugreg[DR_FIRSTADDR] */
-#define DR_LASTADDR 3 /* u_debugreg[DR_LASTADDR] */
-
-#define DR_STATUS 6 /* u_debugreg[DR_STATUS] */
-#define DR_CONTROL 7 /* u_debugreg[DR_CONTROL] */
-
-/* Define a few things for the status register. We can use this to determine
- which debugging register was responsible for the trap. The other bits
- are either reserved or not of interest to us. */
-
-/* Define reserved bits in DR6 which are always set to 1 */
-#define DR6_RESERVED (0xFFFF0FF0)
-
-#define DR_TRAP0 (0x1) /* db0 */
-#define DR_TRAP1 (0x2) /* db1 */
-#define DR_TRAP2 (0x4) /* db2 */
-#define DR_TRAP3 (0x8) /* db3 */
-#define DR_TRAP_BITS (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3)
-
-#define DR_STEP (0x4000) /* single-step */
-#define DR_SWITCH (0x8000) /* task switch */
-
-/* Now define a bunch of things for manipulating the control register.
- The top two bytes of the control register consist of 4 fields of 4
- bits - each field corresponds to one of the four debug registers,
- and indicates what types of access we trap on, and how large the data
- field is that we are looking at */
-
-#define DR_CONTROL_SHIFT 16 /* Skip this many bits in ctl register */
-#define DR_CONTROL_SIZE 4 /* 4 control bits per register */
-
-#define DR_RW_EXECUTE (0x0) /* Settings for the access types to trap on */
-#define DR_RW_WRITE (0x1)
-#define DR_RW_READ (0x3)
-
-#define DR_LEN_1 (0x0) /* Settings for data length to trap on */
-#define DR_LEN_2 (0x4)
-#define DR_LEN_4 (0xC)
-#define DR_LEN_8 (0x8)
-
-/* The low byte to the control register determine which registers are
- enabled. There are 4 fields of two bits. One bit is "local", meaning
- that the processor will reset the bit after a task switch and the other
- is global meaning that we have to explicitly reset the bit. With linux,
- you can use either one, since we explicitly zero the register when we enter
- kernel mode. */
-
-#define DR_LOCAL_ENABLE_SHIFT 0 /* Extra shift to the local enable bit */
-#define DR_GLOBAL_ENABLE_SHIFT 1 /* Extra shift to the global enable bit */
-#define DR_LOCAL_ENABLE (0x1) /* Local enable for reg 0 */
-#define DR_GLOBAL_ENABLE (0x2) /* Global enable for reg 0 */
-#define DR_ENABLE_SIZE 2 /* 2 enable bits per register */
-
-#define DR_LOCAL_ENABLE_MASK (0x55) /* Set local bits for all 4 regs */
-#define DR_GLOBAL_ENABLE_MASK (0xAA) /* Set global bits for all 4 regs */
-
-/* The second byte to the control register has a few special things.
- We can slow the instruction pipeline for instructions coming via the
- gdt or the ldt if we want to. I am not sure why this is an advantage */
-
-#ifdef __i386__
-#define DR_CONTROL_RESERVED (0xFC00) /* Reserved by Intel */
-#else
-#define DR_CONTROL_RESERVED (0xFFFFFFFF0000FC00UL) /* Reserved */
-#endif
-
-#define DR_LOCAL_SLOWDOWN (0x100) /* Local slow the pipeline */
-#define DR_GLOBAL_SLOWDOWN (0x200) /* Global slow the pipeline */
+DECLARE_PER_CPU(unsigned long, cpu_dr7);
+#ifndef CONFIG_PARAVIRT_XXL
/*
- * HW breakpoint additions
+ * These special macros can be used to get or set a debugging register
*/
-#ifdef __KERNEL__
+#define get_debugreg(var, register) \
+ (var) = native_get_debugreg(register)
+#define set_debugreg(value, register) \
+ native_set_debugreg(register, value)
+#endif
-DECLARE_PER_CPU(unsigned long, cpu_dr7);
+static __always_inline unsigned long native_get_debugreg(int regno)
+{
+ unsigned long val = 0; /* Damn you, gcc! */
+
+ switch (regno) {
+ case 0:
+ asm("mov %%db0, %0" :"=r" (val));
+ break;
+ case 1:
+ asm("mov %%db1, %0" :"=r" (val));
+ break;
+ case 2:
+ asm("mov %%db2, %0" :"=r" (val));
+ break;
+ case 3:
+ asm("mov %%db3, %0" :"=r" (val));
+ break;
+ case 6:
+ asm("mov %%db6, %0" :"=r" (val));
+ break;
+ case 7:
+ /*
+ * Apply __FORCE_ORDER to DR7 reads to forbid re-ordering them
+ * with other code.
+ *
+ * This is needed because a DR7 access can cause a #VC exception
+ * when running under SEV-ES. Taking a #VC exception is not a
+ * safe thing to do just anywhere in the entry code and
+ * re-ordering might place the access into an unsafe location.
+ *
+ * This happened in the NMI handler, where the DR7 read was
+ * re-ordered to happen before the call to sev_es_ist_enter(),
+ * causing stack recursion.
+ */
+ asm volatile("mov %%db7, %0" : "=r" (val) : __FORCE_ORDER);
+ break;
+ default:
+ BUG();
+ }
+ return val;
+}
+
+static __always_inline void native_set_debugreg(int regno, unsigned long value)
+{
+ switch (regno) {
+ case 0:
+ asm("mov %0, %%db0" ::"r" (value));
+ break;
+ case 1:
+ asm("mov %0, %%db1" ::"r" (value));
+ break;
+ case 2:
+ asm("mov %0, %%db2" ::"r" (value));
+ break;
+ case 3:
+ asm("mov %0, %%db3" ::"r" (value));
+ break;
+ case 6:
+ asm("mov %0, %%db6" ::"r" (value));
+ break;
+ case 7:
+ /*
+ * Apply __FORCE_ORDER to DR7 writes to forbid re-ordering them
+ * with other code.
+ *
+ * While is didn't happen with a DR7 write (see the DR7 read
+ * comment above which explains where it happened), add the
+ * __FORCE_ORDER here too to avoid similar problems in the
+ * future.
+ */
+ asm volatile("mov %0, %%db7" ::"r" (value), __FORCE_ORDER);
+ break;
+ default:
+ BUG();
+ }
+}
static inline void hw_breakpoint_disable(void)
{
@@ -92,15 +107,55 @@ static inline void hw_breakpoint_disable(void)
set_debugreg(0UL, 3);
}
-static inline int hw_breakpoint_active(void)
+static __always_inline bool hw_breakpoint_active(void)
{
return __this_cpu_read(cpu_dr7) & DR_GLOBAL_ENABLE_MASK;
}
-extern void aout_dump_debugregs(struct user *dump);
-
extern void hw_breakpoint_restore(void);
-#endif /* __KERNEL__ */
+static __always_inline unsigned long local_db_save(void)
+{
+ unsigned long dr7;
+
+ if (static_cpu_has(X86_FEATURE_HYPERVISOR) && !hw_breakpoint_active())
+ return 0;
+
+ get_debugreg(dr7, 7);
+ dr7 &= ~0x400; /* architecturally set bit */
+ if (dr7)
+ set_debugreg(0, 7);
+ /*
+ * Ensure the compiler doesn't lower the above statements into
+ * the critical section; disabling breakpoints late would not
+ * be good.
+ */
+ barrier();
+
+ return dr7;
+}
+
+static __always_inline void local_db_restore(unsigned long dr7)
+{
+ /*
+ * Ensure the compiler doesn't raise this statement into
+ * the critical section; enabling breakpoints early would
+ * not be good.
+ */
+ barrier();
+ if (dr7)
+ set_debugreg(dr7, 7);
+}
+
+#ifdef CONFIG_CPU_SUP_AMD
+extern void amd_set_dr_addr_mask(unsigned long mask, unsigned int dr);
+extern unsigned long amd_get_dr_addr_mask(unsigned int dr);
+#else
+static inline void amd_set_dr_addr_mask(unsigned long mask, unsigned int dr) { }
+static inline unsigned long amd_get_dr_addr_mask(unsigned int dr)
+{
+ return 0;
+}
+#endif
#endif /* _ASM_X86_DEBUGREG_H */
diff --git a/arch/x86/include/asm/delay.h b/arch/x86/include/asm/delay.h
index 409a649204aa..630891d25819 100644
--- a/arch/x86/include/asm/delay.h
+++ b/arch/x86/include/asm/delay.h
@@ -1,31 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_DELAY_H
#define _ASM_X86_DELAY_H
-/*
- * Copyright (C) 1993 Linus Torvalds
- *
- * Delay routines calling functions in arch/x86/lib/delay.c
- */
+#include <asm-generic/delay.h>
+#include <linux/init.h>
-/* Undefined functions to get compile-time errors */
-extern void __bad_udelay(void);
-extern void __bad_ndelay(void);
-
-extern void __udelay(unsigned long usecs);
-extern void __ndelay(unsigned long nsecs);
-extern void __const_udelay(unsigned long xloops);
-extern void __delay(unsigned long loops);
-
-/* 0x10c7 is 2**32 / 1000000 (rounded up) */
-#define udelay(n) (__builtin_constant_p(n) ? \
- ((n) > 20000 ? __bad_udelay() : __const_udelay((n) * 0x10c7ul)) : \
- __udelay(n))
-
-/* 0x5 is 2**32 / 1000000000 (rounded up) */
-#define ndelay(n) (__builtin_constant_p(n) ? \
- ((n) > 20000 ? __bad_ndelay() : __const_udelay((n) * 5ul)) : \
- __ndelay(n))
-
-void use_tsc_delay(void);
+void __init use_tsc_delay(void);
+void __init use_tpause_delay(void);
+void use_mwaitx_delay(void);
#endif /* _ASM_X86_DELAY_H */
diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index 617bd56b3070..ab97b22ac04a 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -1,105 +1,127 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_DESC_H
#define _ASM_X86_DESC_H
#include <asm/desc_defs.h>
#include <asm/ldt.h>
#include <asm/mmu.h>
+#include <asm/fixmap.h>
+#include <asm/irq_vectors.h>
+#include <asm/cpu_entry_area.h>
+
+#include <linux/debug_locks.h>
#include <linux/smp.h>
+#include <linux/percpu.h>
+
+static inline void fill_ldt(struct desc_struct *desc, const struct user_desc *info)
+{
+ desc->limit0 = info->limit & 0x0ffff;
+
+ desc->base0 = (info->base_addr & 0x0000ffff);
+ desc->base1 = (info->base_addr & 0x00ff0000) >> 16;
+
+ desc->type = (info->read_exec_only ^ 1) << 1;
+ desc->type |= info->contents << 2;
+ /* Set the ACCESS bit so it can be mapped RO */
+ desc->type |= 1;
-static inline void fill_ldt(struct desc_struct *desc,
- const struct user_desc *info)
-{
- desc->limit0 = info->limit & 0x0ffff;
- desc->base0 = info->base_addr & 0x0000ffff;
-
- desc->base1 = (info->base_addr & 0x00ff0000) >> 16;
- desc->type = (info->read_exec_only ^ 1) << 1;
- desc->type |= info->contents << 2;
- desc->s = 1;
- desc->dpl = 0x3;
- desc->p = info->seg_not_present ^ 1;
- desc->limit = (info->limit & 0xf0000) >> 16;
- desc->avl = info->useable;
- desc->d = info->seg_32bit;
- desc->g = info->limit_in_pages;
- desc->base2 = (info->base_addr & 0xff000000) >> 24;
+ desc->s = 1;
+ desc->dpl = 0x3;
+ desc->p = info->seg_not_present ^ 1;
+ desc->limit1 = (info->limit & 0xf0000) >> 16;
+ desc->avl = info->useable;
+ desc->d = info->seg_32bit;
+ desc->g = info->limit_in_pages;
+
+ desc->base2 = (info->base_addr & 0xff000000) >> 24;
/*
- * Don't allow setting of the lm bit. It is useless anyway
- * because 64bit system calls require __USER_CS:
+ * Don't allow setting of the lm bit. It would confuse
+ * user_64bit_mode and would get overridden by sysret anyway.
*/
- desc->l = 0;
+ desc->l = 0;
}
-extern struct desc_ptr idt_descr;
-extern gate_desc idt_table[];
-
struct gdt_page {
struct desc_struct gdt[GDT_ENTRIES];
} __attribute__((aligned(PAGE_SIZE)));
+
DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page);
-static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu)
+/* Provide the original GDT */
+static inline struct desc_struct *get_cpu_gdt_rw(unsigned int cpu)
{
return per_cpu(gdt_page, cpu).gdt;
}
-#ifdef CONFIG_X86_64
+/* Provide the current original GDT */
+static inline struct desc_struct *get_current_gdt_rw(void)
+{
+ return this_cpu_ptr(&gdt_page)->gdt;
+}
-static inline void pack_gate(gate_desc *gate, unsigned type, unsigned long func,
- unsigned dpl, unsigned ist, unsigned seg)
+/* Provide the fixmap address of the remapped GDT */
+static inline struct desc_struct *get_cpu_gdt_ro(int cpu)
{
- gate->offset_low = PTR_LOW(func);
- gate->segment = __KERNEL_CS;
- gate->ist = ist;
- gate->p = 1;
- gate->dpl = dpl;
- gate->zero0 = 0;
- gate->zero1 = 0;
- gate->type = type;
- gate->offset_middle = PTR_MIDDLE(func);
- gate->offset_high = PTR_HIGH(func);
+ return (struct desc_struct *)&get_cpu_entry_area(cpu)->gdt;
}
-#else
-static inline void pack_gate(gate_desc *gate, unsigned char type,
- unsigned long base, unsigned dpl, unsigned flags,
- unsigned short seg)
+/* Provide the current read-only GDT */
+static inline struct desc_struct *get_current_gdt_ro(void)
{
- gate->a = (seg << 16) | (base & 0xffff);
- gate->b = (base & 0xffff0000) |
- (((0x80 | type | (dpl << 5)) & 0xff) << 8);
+ return get_cpu_gdt_ro(smp_processor_id());
}
+/* Provide the physical address of the GDT page. */
+static inline phys_addr_t get_cpu_gdt_paddr(unsigned int cpu)
+{
+ return per_cpu_ptr_to_phys(get_cpu_gdt_rw(cpu));
+}
+
+static inline void pack_gate(gate_desc *gate, unsigned type, unsigned long func,
+ unsigned dpl, unsigned ist, unsigned seg)
+{
+ gate->offset_low = (u16) func;
+ gate->bits.p = 1;
+ gate->bits.dpl = dpl;
+ gate->bits.zero = 0;
+ gate->bits.type = type;
+ gate->offset_middle = (u16) (func >> 16);
+#ifdef CONFIG_X86_64
+ gate->segment = __KERNEL_CS;
+ gate->bits.ist = ist;
+ gate->reserved = 0;
+ gate->offset_high = (u32) (func >> 32);
+#else
+ gate->segment = seg;
+ gate->bits.ist = 0;
#endif
+}
static inline int desc_empty(const void *ptr)
{
const u32 *desc = ptr;
+
return !(desc[0] | desc[1]);
}
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_XXL
#include <asm/paravirt.h>
#else
-#define load_TR_desc() native_load_tr_desc()
-#define load_gdt(dtr) native_load_gdt(dtr)
-#define load_idt(dtr) native_load_idt(dtr)
-#define load_tr(tr) asm volatile("ltr %0"::"m" (tr))
-#define load_ldt(ldt) asm volatile("lldt %0"::"m" (ldt))
-
-#define store_gdt(dtr) native_store_gdt(dtr)
-#define store_idt(dtr) native_store_idt(dtr)
-#define store_tr(tr) (tr = native_store_tr())
-
-#define load_TLS(t, cpu) native_load_tls(t, cpu)
-#define set_ldt native_set_ldt
-
-#define write_ldt_entry(dt, entry, desc) \
- native_write_ldt_entry(dt, entry, desc)
-#define write_gdt_entry(dt, entry, desc, type) \
- native_write_gdt_entry(dt, entry, desc, type)
-#define write_idt_entry(dt, entry, g) \
- native_write_idt_entry(dt, entry, g)
+#define load_TR_desc() native_load_tr_desc()
+#define load_gdt(dtr) native_load_gdt(dtr)
+#define load_idt(dtr) native_load_idt(dtr)
+#define load_tr(tr) asm volatile("ltr %0"::"m" (tr))
+#define load_ldt(ldt) asm volatile("lldt %0"::"m" (ldt))
+
+#define store_gdt(dtr) native_store_gdt(dtr)
+#define store_tr(tr) (tr = native_store_tr())
+
+#define load_TLS(t, cpu) native_load_tls(t, cpu)
+#define set_ldt native_set_ldt
+
+#define write_ldt_entry(dt, entry, desc) native_write_ldt_entry(dt, entry, desc)
+#define write_gdt_entry(dt, entry, desc, type) native_write_gdt_entry(dt, entry, desc, type)
+#define write_idt_entry(dt, entry, g) native_write_idt_entry(dt, entry, g)
static inline void paravirt_alloc_ldt(struct desc_struct *ldt, unsigned entries)
{
@@ -108,86 +130,60 @@ static inline void paravirt_alloc_ldt(struct desc_struct *ldt, unsigned entries)
static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
{
}
-#endif /* CONFIG_PARAVIRT */
+#endif /* CONFIG_PARAVIRT_XXL */
#define store_ldt(ldt) asm("sldt %0" : "=m"(ldt))
-static inline void native_write_idt_entry(gate_desc *idt, int entry,
- const gate_desc *gate)
+static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate)
{
memcpy(&idt[entry], gate, sizeof(*gate));
}
-static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry,
- const void *desc)
+static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc)
{
memcpy(&ldt[entry], desc, 8);
}
-static inline void native_write_gdt_entry(struct desc_struct *gdt, int entry,
- const void *desc, int type)
+static inline void
+native_write_gdt_entry(struct desc_struct *gdt, int entry, const void *desc, int type)
{
unsigned int size;
+
switch (type) {
- case DESC_TSS:
- size = sizeof(tss_desc);
- break;
- case DESC_LDT:
- size = sizeof(ldt_desc);
- break;
- default:
- size = sizeof(struct desc_struct);
- break;
+ case DESC_TSS: size = sizeof(tss_desc); break;
+ case DESC_LDT: size = sizeof(ldt_desc); break;
+ default: size = sizeof(*gdt); break;
}
- memcpy(&gdt[entry], desc, size);
-}
-static inline void pack_descriptor(struct desc_struct *desc, unsigned long base,
- unsigned long limit, unsigned char type,
- unsigned char flags)
-{
- desc->a = ((base & 0xffff) << 16) | (limit & 0xffff);
- desc->b = (base & 0xff000000) | ((base & 0xff0000) >> 16) |
- (limit & 0x000f0000) | ((type & 0xff) << 8) |
- ((flags & 0xf) << 20);
- desc->p = 1;
+ memcpy(&gdt[entry], desc, size);
}
-
static inline void set_tssldt_descriptor(void *d, unsigned long addr,
unsigned type, unsigned size)
{
-#ifdef CONFIG_X86_64
- struct ldttss_desc64 *desc = d;
+ struct ldttss_desc *desc = d;
+
memset(desc, 0, sizeof(*desc));
- desc->limit0 = size & 0xFFFF;
- desc->base0 = PTR_LOW(addr);
- desc->base1 = PTR_MIDDLE(addr) & 0xFF;
- desc->type = type;
- desc->p = 1;
- desc->limit1 = (size >> 16) & 0xF;
- desc->base2 = (PTR_MIDDLE(addr) >> 8) & 0xFF;
- desc->base3 = PTR_HIGH(addr);
-#else
- pack_descriptor((struct desc_struct *)d, addr, size, 0x80 | type, 0);
+
+ desc->limit0 = (u16) size;
+ desc->base0 = (u16) addr;
+ desc->base1 = (addr >> 16) & 0xFF;
+ desc->type = type;
+ desc->p = 1;
+ desc->limit1 = (size >> 16) & 0xF;
+ desc->base2 = (addr >> 24) & 0xFF;
+#ifdef CONFIG_X86_64
+ desc->base3 = (u32) (addr >> 32);
#endif
}
-static inline void __set_tss_desc(unsigned cpu, unsigned int entry, void *addr)
+static inline void __set_tss_desc(unsigned cpu, unsigned int entry, struct x86_hw_tss *addr)
{
- struct desc_struct *d = get_cpu_gdt_table(cpu);
+ struct desc_struct *d = get_cpu_gdt_rw(cpu);
tss_desc tss;
- /*
- * sizeof(unsigned long) coming from an extra "long" at the end
- * of the iobitmap. See tss_struct definition in processor.h
- *
- * -1? seg base+limit should be pointing to the address of the
- * last valid byte
- */
set_tssldt_descriptor(&tss, (unsigned long)addr, DESC_TSS,
- IO_BITMAP_OFFSET + IO_BITMAP_BYTES +
- sizeof(unsigned long) - 1);
+ __KERNEL_TSS_LIMIT);
write_gdt_entry(d, entry, &tss, DESC_TSS);
}
@@ -203,23 +199,18 @@ static inline void native_set_ldt(const void *addr, unsigned int entries)
set_tssldt_descriptor(&ldt, (unsigned long)addr, DESC_LDT,
entries * LDT_ENTRY_SIZE - 1);
- write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_LDT,
+ write_gdt_entry(get_cpu_gdt_rw(cpu), GDT_ENTRY_LDT,
&ldt, DESC_LDT);
asm volatile("lldt %w0"::"q" (GDT_ENTRY_LDT*8));
}
}
-static inline void native_load_tr_desc(void)
-{
- asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
-}
-
static inline void native_load_gdt(const struct desc_ptr *dtr)
{
asm volatile("lgdt %0"::"m" (*dtr));
}
-static inline void native_load_idt(const struct desc_ptr *dtr)
+static __always_inline void native_load_idt(const struct desc_ptr *dtr)
{
asm volatile("lidt %0"::"m" (*dtr));
}
@@ -229,28 +220,138 @@ static inline void native_store_gdt(struct desc_ptr *dtr)
asm volatile("sgdt %0":"=m" (*dtr));
}
-static inline void native_store_idt(struct desc_ptr *dtr)
+static inline void store_idt(struct desc_ptr *dtr)
{
asm volatile("sidt %0":"=m" (*dtr));
}
+static inline void native_gdt_invalidate(void)
+{
+ const struct desc_ptr invalid_gdt = {
+ .address = 0,
+ .size = 0
+ };
+
+ native_load_gdt(&invalid_gdt);
+}
+
+static inline void native_idt_invalidate(void)
+{
+ const struct desc_ptr invalid_idt = {
+ .address = 0,
+ .size = 0
+ };
+
+ native_load_idt(&invalid_idt);
+}
+
+/*
+ * The LTR instruction marks the TSS GDT entry as busy. On 64-bit, the GDT is
+ * a read-only remapping. To prevent a page fault, the GDT is switched to the
+ * original writeable version when needed.
+ */
+#ifdef CONFIG_X86_64
+static inline void native_load_tr_desc(void)
+{
+ struct desc_ptr gdt;
+ int cpu = raw_smp_processor_id();
+ bool restore = 0;
+ struct desc_struct *fixmap_gdt;
+
+ native_store_gdt(&gdt);
+ fixmap_gdt = get_cpu_gdt_ro(cpu);
+
+ /*
+ * If the current GDT is the read-only fixmap, swap to the original
+ * writeable version. Swap back at the end.
+ */
+ if (gdt.address == (unsigned long)fixmap_gdt) {
+ load_direct_gdt(cpu);
+ restore = 1;
+ }
+ asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
+ if (restore)
+ load_fixmap_gdt(cpu);
+}
+#else
+static inline void native_load_tr_desc(void)
+{
+ asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8));
+}
+#endif
+
static inline unsigned long native_store_tr(void)
{
unsigned long tr;
+
asm volatile("str %0":"=r" (tr));
+
return tr;
}
static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
{
+ struct desc_struct *gdt = get_cpu_gdt_rw(cpu);
unsigned int i;
- struct desc_struct *gdt = get_cpu_gdt_table(cpu);
for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++)
gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i];
}
-#define _LDT_empty(info) \
+DECLARE_PER_CPU(bool, __tss_limit_invalid);
+
+static inline void force_reload_TR(void)
+{
+ struct desc_struct *d = get_current_gdt_rw();
+ tss_desc tss;
+
+ memcpy(&tss, &d[GDT_ENTRY_TSS], sizeof(tss_desc));
+
+ /*
+ * LTR requires an available TSS, and the TSS is currently
+ * busy. Make it be available so that LTR will work.
+ */
+ tss.type = DESC_TSS;
+ write_gdt_entry(d, GDT_ENTRY_TSS, &tss, DESC_TSS);
+
+ load_TR_desc();
+ this_cpu_write(__tss_limit_invalid, false);
+}
+
+/*
+ * Call this if you need the TSS limit to be correct, which should be the case
+ * if and only if you have TIF_IO_BITMAP set or you're switching to a task
+ * with TIF_IO_BITMAP set.
+ */
+static inline void refresh_tss_limit(void)
+{
+ DEBUG_LOCKS_WARN_ON(preemptible());
+
+ if (unlikely(this_cpu_read(__tss_limit_invalid)))
+ force_reload_TR();
+}
+
+/*
+ * If you do something evil that corrupts the cached TSS limit (I'm looking
+ * at you, VMX exits), call this function.
+ *
+ * The optimization here is that the TSS limit only matters for Linux if the
+ * IO bitmap is in use. If the TSS limit gets forced to its minimum value,
+ * everything works except that IO bitmap will be ignored and all CPL 3 IO
+ * instructions will #GP, which is exactly what we want for normal tasks.
+ */
+static inline void invalidate_tss_limit(void)
+{
+ DEBUG_LOCKS_WARN_ON(preemptible());
+
+ if (unlikely(test_thread_flag(TIF_IO_BITMAP)))
+ force_reload_TR();
+ else
+ this_cpu_write(__tss_limit_invalid, true);
+}
+
+/* This intentionally ignores lm, since 32-bit apps don't have that field. */
+#define LDT_empty(info) \
((info)->base_addr == 0 && \
(info)->limit == 0 && \
(info)->contents == 0 && \
@@ -260,30 +361,22 @@ static inline void native_load_tls(struct thread_struct *t, unsigned int cpu)
(info)->seg_not_present == 1 && \
(info)->useable == 0)
-#ifdef CONFIG_X86_64
-#define LDT_empty(info) (_LDT_empty(info) && ((info)->lm == 0))
-#else
-#define LDT_empty(info) (_LDT_empty(info))
-#endif
-
-static inline void clear_LDT(void)
+/* Lots of programs expect an all-zero user_desc to mean "no segment at all". */
+static inline bool LDT_zero(const struct user_desc *info)
{
- set_ldt(NULL, 0);
+ return (info->base_addr == 0 &&
+ info->limit == 0 &&
+ info->contents == 0 &&
+ info->read_exec_only == 0 &&
+ info->seg_32bit == 0 &&
+ info->limit_in_pages == 0 &&
+ info->seg_not_present == 0 &&
+ info->useable == 0);
}
-/*
- * load one particular LDT into the current CPU
- */
-static inline void load_LDT_nolock(mm_context_t *pc)
-{
- set_ldt(pc->ldt, pc->size);
-}
-
-static inline void load_LDT(mm_context_t *pc)
+static inline void clear_LDT(void)
{
- preempt_disable();
- load_LDT_nolock(pc);
- preempt_enable();
+ set_ldt(NULL, 0);
}
static inline unsigned long get_desc_base(const struct desc_struct *desc)
@@ -300,96 +393,59 @@ static inline void set_desc_base(struct desc_struct *desc, unsigned long base)
static inline unsigned long get_desc_limit(const struct desc_struct *desc)
{
- return desc->limit0 | (desc->limit << 16);
+ return desc->limit0 | (desc->limit1 << 16);
}
static inline void set_desc_limit(struct desc_struct *desc, unsigned long limit)
{
desc->limit0 = limit & 0xffff;
- desc->limit = (limit >> 16) & 0xf;
+ desc->limit1 = (limit >> 16) & 0xf;
}
-static inline void _set_gate(int gate, unsigned type, void *addr,
- unsigned dpl, unsigned ist, unsigned seg)
-{
- gate_desc s;
- pack_gate(&s, type, (unsigned long)addr, dpl, ist, seg);
- /*
- * does not need to be atomic because it is only done once at
- * setup time
- */
- write_idt_entry(idt_table, gate, &s);
-}
+void alloc_intr_gate(unsigned int n, const void *addr);
-/*
- * This needs to use 'idt_table' rather than 'idt', and
- * thus use the _nonmapped_ version of the IDT, as the
- * Pentium F0 0F bugfix can have resulted in the mapped
- * IDT being write-protected.
- */
-static inline void set_intr_gate(unsigned int n, void *addr)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_INTERRUPT, addr, 0, 0, __KERNEL_CS);
-}
-
-extern int first_system_vector;
-/* used_vectors is BITMAP for irq is not managed by percpu vector_irq */
-extern unsigned long used_vectors[];
-
-static inline void alloc_system_vector(int vector)
+static inline void init_idt_data(struct idt_data *data, unsigned int n,
+ const void *addr)
{
- if (!test_bit(vector, used_vectors)) {
- set_bit(vector, used_vectors);
- if (first_system_vector > vector)
- first_system_vector = vector;
- } else
- BUG();
-}
+ BUG_ON(n > 0xFF);
-static inline void alloc_intr_gate(unsigned int n, void *addr)
-{
- alloc_system_vector(n);
- set_intr_gate(n, addr);
+ memset(data, 0, sizeof(*data));
+ data->vector = n;
+ data->addr = addr;
+ data->segment = __KERNEL_CS;
+ data->bits.type = GATE_INTERRUPT;
+ data->bits.p = 1;
}
-/*
- * This routine sets up an interrupt gate at directory privilege level 3.
- */
-static inline void set_system_intr_gate(unsigned int n, void *addr)
+static inline void idt_init_desc(gate_desc *gate, const struct idt_data *d)
{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS);
-}
+ unsigned long addr = (unsigned long) d->addr;
-static inline void set_system_trap_gate(unsigned int n, void *addr)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS);
+ gate->offset_low = (u16) addr;
+ gate->segment = (u16) d->segment;
+ gate->bits = d->bits;
+ gate->offset_middle = (u16) (addr >> 16);
+#ifdef CONFIG_X86_64
+ gate->offset_high = (u32) (addr >> 32);
+ gate->reserved = 0;
+#endif
}
-static inline void set_trap_gate(unsigned int n, void *addr)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS);
-}
+extern unsigned long system_vectors[];
-static inline void set_task_gate(unsigned int n, unsigned int gdt_entry)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3));
-}
+extern void load_current_idt(void);
+extern void idt_setup_early_handler(void);
+extern void idt_setup_early_traps(void);
+extern void idt_setup_traps(void);
+extern void idt_setup_apic_and_irq_gates(void);
+extern bool idt_is_f00f_address(unsigned long address);
-static inline void set_intr_gate_ist(int n, void *addr, unsigned ist)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS);
-}
+#ifdef CONFIG_X86_64
+extern void idt_setup_early_pf(void);
+#else
+static inline void idt_setup_early_pf(void) { }
+#endif
-static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist)
-{
- BUG_ON((unsigned)n > 0xFF);
- _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS);
-}
+extern void idt_invalidate(void);
#endif /* _ASM_X86_DESC_H */
diff --git a/arch/x86/include/asm/desc_defs.h b/arch/x86/include/asm/desc_defs.h
index 278441f39856..f7e7099af595 100644
--- a/arch/x86/include/asm/desc_defs.h
+++ b/arch/x86/include/asm/desc_defs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/* Written 2000 by Andi Kleen */
#ifndef _ASM_X86_DESC_DEFS_H
#define _ASM_X86_DESC_DEFS_H
@@ -11,34 +12,30 @@
#include <linux/types.h>
-/*
- * FIXME: Accessing the desc_struct through its fields is more elegant,
- * and should be the one valid thing to do. However, a lot of open code
- * still touches the a and b accessors, and doing this allow us to do it
- * incrementally. We keep the signature as a struct, rather than an union,
- * so we can get rid of it transparently in the future -- glommer
- */
/* 8 byte segment descriptor */
struct desc_struct {
- union {
- struct {
- unsigned int a;
- unsigned int b;
- };
- struct {
- u16 limit0;
- u16 base0;
- unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1;
- unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
- };
- };
+ u16 limit0;
+ u16 base0;
+ u16 base1: 8, type: 4, s: 1, dpl: 2, p: 1;
+ u16 limit1: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8;
} __attribute__((packed));
-#define GDT_ENTRY_INIT(flags, base, limit) { { { \
- .a = ((limit) & 0xffff) | (((base) & 0xffff) << 16), \
- .b = (((base) & 0xff0000) >> 16) | (((flags) & 0xf0ff) << 8) | \
- ((limit) & 0xf0000) | ((base) & 0xff000000), \
- } } }
+#define GDT_ENTRY_INIT(flags, base, limit) \
+ { \
+ .limit0 = (u16) (limit), \
+ .limit1 = ((limit) >> 16) & 0x0F, \
+ .base0 = (u16) (base), \
+ .base1 = ((base) >> 16) & 0xFF, \
+ .base2 = ((base) >> 24) & 0xFF, \
+ .type = (flags & 0x0f), \
+ .s = (flags >> 4) & 0x01, \
+ .dpl = (flags >> 5) & 0x03, \
+ .p = (flags >> 7) & 0x01, \
+ .avl = (flags >> 12) & 0x01, \
+ .l = (flags >> 13) & 0x01, \
+ .d = (flags >> 14) & 0x01, \
+ .g = (flags >> 15) & 0x01, \
+ }
enum {
GATE_INTERRUPT = 0xE,
@@ -47,49 +44,70 @@ enum {
GATE_TASK = 0x5,
};
-/* 16byte gate */
-struct gate_struct64 {
- u16 offset_low;
- u16 segment;
- unsigned ist : 3, zero0 : 5, type : 5, dpl : 2, p : 1;
- u16 offset_middle;
- u32 offset_high;
- u32 zero1;
-} __attribute__((packed));
-
-#define PTR_LOW(x) ((unsigned long long)(x) & 0xFFFF)
-#define PTR_MIDDLE(x) (((unsigned long long)(x) >> 16) & 0xFFFF)
-#define PTR_HIGH(x) ((unsigned long long)(x) >> 32)
-
enum {
DESC_TSS = 0x9,
DESC_LDT = 0x2,
DESCTYPE_S = 0x10, /* !system */
};
-/* LDT or TSS descriptor in the GDT. 16 bytes. */
-struct ldttss_desc64 {
- u16 limit0;
- u16 base0;
- unsigned base1 : 8, type : 5, dpl : 2, p : 1;
- unsigned limit1 : 4, zero0 : 3, g : 1, base2 : 8;
- u32 base3;
- u32 zero1;
+/* LDT or TSS descriptor in the GDT. */
+struct ldttss_desc {
+ u16 limit0;
+ u16 base0;
+
+ u16 base1 : 8, type : 5, dpl : 2, p : 1;
+ u16 limit1 : 4, zero0 : 3, g : 1, base2 : 8;
+#ifdef CONFIG_X86_64
+ u32 base3;
+ u32 zero1;
+#endif
+} __attribute__((packed));
+
+typedef struct ldttss_desc ldt_desc;
+typedef struct ldttss_desc tss_desc;
+
+struct idt_bits {
+ u16 ist : 3,
+ zero : 5,
+ type : 5,
+ dpl : 2,
+ p : 1;
} __attribute__((packed));
+struct idt_data {
+ unsigned int vector;
+ unsigned int segment;
+ struct idt_bits bits;
+ const void *addr;
+};
+
+struct gate_struct {
+ u16 offset_low;
+ u16 segment;
+ struct idt_bits bits;
+ u16 offset_middle;
+#ifdef CONFIG_X86_64
+ u32 offset_high;
+ u32 reserved;
+#endif
+} __attribute__((packed));
+
+typedef struct gate_struct gate_desc;
+
+static inline unsigned long gate_offset(const gate_desc *g)
+{
#ifdef CONFIG_X86_64
-typedef struct gate_struct64 gate_desc;
-typedef struct ldttss_desc64 ldt_desc;
-typedef struct ldttss_desc64 tss_desc;
-#define gate_offset(g) ((g).offset_low | ((unsigned long)(g).offset_middle << 16) | ((unsigned long)(g).offset_high << 32))
-#define gate_segment(g) ((g).segment)
+ return g->offset_low | ((unsigned long)g->offset_middle << 16) |
+ ((unsigned long) g->offset_high << 32);
#else
-typedef struct desc_struct gate_desc;
-typedef struct desc_struct ldt_desc;
-typedef struct desc_struct tss_desc;
-#define gate_offset(g) (((g).b & 0xffff0000) | ((g).a & 0x0000ffff))
-#define gate_segment(g) ((g).a >> 16)
+ return g->offset_low | ((unsigned long)g->offset_middle << 16);
#endif
+}
+
+static inline unsigned long gate_segment(const gate_desc *g)
+{
+ return g->segment;
+}
struct desc_ptr {
unsigned short size;
@@ -98,4 +116,30 @@ struct desc_ptr {
#endif /* !__ASSEMBLY__ */
+/* Boot IDT definitions */
+#define BOOT_IDT_ENTRIES 32
+
+/* Access rights as returned by LAR */
+#define AR_TYPE_RODATA (0 * (1 << 9))
+#define AR_TYPE_RWDATA (1 * (1 << 9))
+#define AR_TYPE_RODATA_EXPDOWN (2 * (1 << 9))
+#define AR_TYPE_RWDATA_EXPDOWN (3 * (1 << 9))
+#define AR_TYPE_XOCODE (4 * (1 << 9))
+#define AR_TYPE_XRCODE (5 * (1 << 9))
+#define AR_TYPE_XOCODE_CONF (6 * (1 << 9))
+#define AR_TYPE_XRCODE_CONF (7 * (1 << 9))
+#define AR_TYPE_MASK (7 * (1 << 9))
+
+#define AR_DPL0 (0 * (1 << 13))
+#define AR_DPL3 (3 * (1 << 13))
+#define AR_DPL_MASK (3 * (1 << 13))
+
+#define AR_A (1 << 8) /* "Accessed" */
+#define AR_S (1 << 12) /* If clear, "System" segment */
+#define AR_P (1 << 15) /* "Present" */
+#define AR_AVL (1 << 20) /* "AVaiLable" (no HW effect) */
+#define AR_L (1 << 21) /* "Long mode" for code segments */
+#define AR_DB (1 << 22) /* D/B, effect depends on type */
+#define AR_G (1 << 23) /* "Granularity" (limit in pages) */
+
#endif /* _ASM_X86_DESC_DEFS_H */
diff --git a/arch/x86/include/asm/device.h b/arch/x86/include/asm/device.h
index 029f230ab637..7c0a52ca2f4d 100644
--- a/arch/x86/include/asm/device.h
+++ b/arch/x86/include/asm/device.h
@@ -1,16 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_DEVICE_H
#define _ASM_X86_DEVICE_H
struct dev_archdata {
-#ifdef CONFIG_ACPI
- void *acpi_handle;
-#endif
-#ifdef CONFIG_X86_64
-struct dma_map_ops *dma_ops;
-#endif
-#if defined(CONFIG_DMAR) || defined(CONFIG_AMD_IOMMU)
- void *iommu; /* hook for IOMMU specific extension */
-#endif
};
struct pdev_archdata {
diff --git a/arch/x86/include/asm/disabled-features.h b/arch/x86/include/asm/disabled-features.h
new file mode 100644
index 000000000000..fafe9be7a6f4
--- /dev/null
+++ b/arch/x86/include/asm/disabled-features.h
@@ -0,0 +1,136 @@
+#ifndef _ASM_X86_DISABLED_FEATURES_H
+#define _ASM_X86_DISABLED_FEATURES_H
+
+/* These features, although they might be available in a CPU
+ * will not be used because the compile options to support
+ * them are not present.
+ *
+ * This code allows them to be checked and disabled at
+ * compile time without an explicit #ifdef. Use
+ * cpu_feature_enabled().
+ */
+
+#ifdef CONFIG_X86_UMIP
+# define DISABLE_UMIP 0
+#else
+# define DISABLE_UMIP (1<<(X86_FEATURE_UMIP & 31))
+#endif
+
+#ifdef CONFIG_X86_64
+# define DISABLE_VME (1<<(X86_FEATURE_VME & 31))
+# define DISABLE_K6_MTRR (1<<(X86_FEATURE_K6_MTRR & 31))
+# define DISABLE_CYRIX_ARR (1<<(X86_FEATURE_CYRIX_ARR & 31))
+# define DISABLE_CENTAUR_MCR (1<<(X86_FEATURE_CENTAUR_MCR & 31))
+# define DISABLE_PCID 0
+#else
+# define DISABLE_VME 0
+# define DISABLE_K6_MTRR 0
+# define DISABLE_CYRIX_ARR 0
+# define DISABLE_CENTAUR_MCR 0
+# define DISABLE_PCID (1<<(X86_FEATURE_PCID & 31))
+#endif /* CONFIG_X86_64 */
+
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+# define DISABLE_PKU 0
+# define DISABLE_OSPKE 0
+#else
+# define DISABLE_PKU (1<<(X86_FEATURE_PKU & 31))
+# define DISABLE_OSPKE (1<<(X86_FEATURE_OSPKE & 31))
+#endif /* CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS */
+
+#ifdef CONFIG_X86_5LEVEL
+# define DISABLE_LA57 0
+#else
+# define DISABLE_LA57 (1<<(X86_FEATURE_LA57 & 31))
+#endif
+
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+# define DISABLE_PTI 0
+#else
+# define DISABLE_PTI (1 << (X86_FEATURE_PTI & 31))
+#endif
+
+#ifdef CONFIG_RETPOLINE
+# define DISABLE_RETPOLINE 0
+#else
+# define DISABLE_RETPOLINE ((1 << (X86_FEATURE_RETPOLINE & 31)) | \
+ (1 << (X86_FEATURE_RETPOLINE_LFENCE & 31)))
+#endif
+
+#ifdef CONFIG_RETHUNK
+# define DISABLE_RETHUNK 0
+#else
+# define DISABLE_RETHUNK (1 << (X86_FEATURE_RETHUNK & 31))
+#endif
+
+#ifdef CONFIG_CPU_UNRET_ENTRY
+# define DISABLE_UNRET 0
+#else
+# define DISABLE_UNRET (1 << (X86_FEATURE_UNRET & 31))
+#endif
+
+#ifdef CONFIG_CALL_DEPTH_TRACKING
+# define DISABLE_CALL_DEPTH_TRACKING 0
+#else
+# define DISABLE_CALL_DEPTH_TRACKING (1 << (X86_FEATURE_CALL_DEPTH & 31))
+#endif
+
+#ifdef CONFIG_ADDRESS_MASKING
+# define DISABLE_LAM 0
+#else
+# define DISABLE_LAM (1 << (X86_FEATURE_LAM & 31))
+#endif
+
+#ifdef CONFIG_INTEL_IOMMU_SVM
+# define DISABLE_ENQCMD 0
+#else
+# define DISABLE_ENQCMD (1 << (X86_FEATURE_ENQCMD & 31))
+#endif
+
+#ifdef CONFIG_X86_SGX
+# define DISABLE_SGX 0
+#else
+# define DISABLE_SGX (1 << (X86_FEATURE_SGX & 31))
+#endif
+
+#ifdef CONFIG_XEN_PV
+# define DISABLE_XENPV 0
+#else
+# define DISABLE_XENPV (1 << (X86_FEATURE_XENPV & 31))
+#endif
+
+#ifdef CONFIG_INTEL_TDX_GUEST
+# define DISABLE_TDX_GUEST 0
+#else
+# define DISABLE_TDX_GUEST (1 << (X86_FEATURE_TDX_GUEST & 31))
+#endif
+
+/*
+ * Make sure to add features to the correct mask
+ */
+#define DISABLED_MASK0 (DISABLE_VME)
+#define DISABLED_MASK1 0
+#define DISABLED_MASK2 0
+#define DISABLED_MASK3 (DISABLE_CYRIX_ARR|DISABLE_CENTAUR_MCR|DISABLE_K6_MTRR)
+#define DISABLED_MASK4 (DISABLE_PCID)
+#define DISABLED_MASK5 0
+#define DISABLED_MASK6 0
+#define DISABLED_MASK7 (DISABLE_PTI)
+#define DISABLED_MASK8 (DISABLE_XENPV|DISABLE_TDX_GUEST)
+#define DISABLED_MASK9 (DISABLE_SGX)
+#define DISABLED_MASK10 0
+#define DISABLED_MASK11 (DISABLE_RETPOLINE|DISABLE_RETHUNK|DISABLE_UNRET| \
+ DISABLE_CALL_DEPTH_TRACKING)
+#define DISABLED_MASK12 (DISABLE_LAM)
+#define DISABLED_MASK13 0
+#define DISABLED_MASK14 0
+#define DISABLED_MASK15 0
+#define DISABLED_MASK16 (DISABLE_PKU|DISABLE_OSPKE|DISABLE_LA57|DISABLE_UMIP| \
+ DISABLE_ENQCMD)
+#define DISABLED_MASK17 0
+#define DISABLED_MASK18 0
+#define DISABLED_MASK19 0
+#define DISABLED_MASK20 0
+#define DISABLED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 21)
+
+#endif /* _ASM_X86_DISABLED_FEATURES_H */
diff --git a/arch/x86/include/asm/div64.h b/arch/x86/include/asm/div64.h
index 9a2d644c08ef..b8f1dc0761e4 100644
--- a/arch/x86/include/asm/div64.h
+++ b/arch/x86/include/asm/div64.h
@@ -1,9 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_DIV64_H
#define _ASM_X86_DIV64_H
#ifdef CONFIG_X86_32
#include <linux/types.h>
+#include <linux/log2.h>
/*
* do_div() is NOT a C function. It wants to return
@@ -21,15 +23,20 @@
({ \
unsigned long __upper, __low, __high, __mod, __base; \
__base = (base); \
- asm("":"=a" (__low), "=d" (__high) : "A" (n)); \
- __upper = __high; \
- if (__high) { \
- __upper = __high % (__base); \
- __high = __high / (__base); \
+ if (__builtin_constant_p(__base) && is_power_of_2(__base)) { \
+ __mod = n & (__base - 1); \
+ n >>= ilog2(__base); \
+ } else { \
+ asm("" : "=a" (__low), "=d" (__high) : "A" (n));\
+ __upper = __high; \
+ if (__high) { \
+ __upper = __high % (__base); \
+ __high = __high / (__base); \
+ } \
+ asm("divl %2" : "=a" (__low), "=d" (__mod) \
+ : "rm" (__base), "0" (__low), "1" (__upper)); \
+ asm("" : "=A" (n) : "a" (__low), "d" (__high)); \
} \
- asm("divl %2":"=a" (__low), "=d" (__mod) \
- : "rm" (__base), "0" (__low), "1" (__upper)); \
- asm("":"=A" (n) : "a" (__low), "d" (__high)); \
__mod; \
})
@@ -53,8 +60,42 @@ static inline u64 div_u64_rem(u64 dividend, u32 divisor, u32 *remainder)
}
#define div_u64_rem div_u64_rem
+static inline u64 mul_u32_u32(u32 a, u32 b)
+{
+ u32 high, low;
+
+ asm ("mull %[b]" : "=a" (low), "=d" (high)
+ : [a] "a" (a), [b] "rm" (b) );
+
+ return low | ((u64)high) << 32;
+}
+#define mul_u32_u32 mul_u32_u32
+
#else
# include <asm-generic/div64.h>
+
+/*
+ * Will generate an #DE when the result doesn't fit u64, could fix with an
+ * __ex_table[] entry when it becomes an issue.
+ */
+static inline u64 mul_u64_u64_div_u64(u64 a, u64 mul, u64 div)
+{
+ u64 q;
+
+ asm ("mulq %2; divq %3" : "=a" (q)
+ : "a" (a), "rm" (mul), "rm" (div)
+ : "rdx");
+
+ return q;
+}
+#define mul_u64_u64_div_u64 mul_u64_u64_div_u64
+
+static inline u64 mul_u64_u32_div(u64 a, u32 mul, u32 div)
+{
+ return mul_u64_u64_div_u64(a, mul, div);
+}
+#define mul_u64_u32_div mul_u64_u32_div
+
#endif /* CONFIG_X86_32 */
#endif /* _ASM_X86_DIV64_H */
diff --git a/arch/x86/include/asm/dma-mapping.h b/arch/x86/include/asm/dma-mapping.h
index d4c419f883a0..d1dac96ee30b 100644
--- a/arch/x86/include/asm/dma-mapping.h
+++ b/arch/x86/include/asm/dma-mapping.h
@@ -1,157 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_DMA_MAPPING_H
#define _ASM_X86_DMA_MAPPING_H
-/*
- * IOMMU interface. See Documentation/PCI/PCI-DMA-mapping.txt and
- * Documentation/DMA-API.txt for documentation.
- */
+extern const struct dma_map_ops *dma_ops;
-#include <linux/kmemcheck.h>
-#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
-#include <linux/dma-attrs.h>
-#include <asm/io.h>
-#include <asm/swiotlb.h>
-#include <asm-generic/dma-coherent.h>
-
-#ifdef CONFIG_ISA
-# define ISA_DMA_BIT_MASK DMA_BIT_MASK(24)
-#else
-# define ISA_DMA_BIT_MASK DMA_BIT_MASK(32)
-#endif
-
-#define DMA_ERROR_CODE 0
-
-extern int iommu_merge;
-extern struct device x86_dma_fallback_dev;
-extern int panic_on_overflow;
-
-extern struct dma_map_ops *dma_ops;
-
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline const struct dma_map_ops *get_arch_dma_ops(void)
{
-#ifdef CONFIG_X86_32
return dma_ops;
-#else
- if (unlikely(!dev) || !dev->archdata.dma_ops)
- return dma_ops;
- else
- return dev->archdata.dma_ops;
-#endif
-}
-
-#include <asm-generic/dma-mapping-common.h>
-
-/* Make sure we keep the same behaviour */
-static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
- if (ops->mapping_error)
- return ops->mapping_error(dev, dma_addr);
-
- return (dma_addr == DMA_ERROR_CODE);
-}
-
-#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent(d, s, h, f)
-#define dma_free_noncoherent(d, s, v, h) dma_free_coherent(d, s, v, h)
-
-extern int dma_supported(struct device *hwdev, u64 mask);
-extern int dma_set_mask(struct device *dev, u64 mask);
-
-extern void *dma_generic_alloc_coherent(struct device *dev, size_t size,
- dma_addr_t *dma_addr, gfp_t flag);
-
-static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
-{
- if (!dev->dma_mask)
- return 0;
-
- return addr + size - 1 <= *dev->dma_mask;
-}
-
-static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-{
- return paddr;
-}
-
-static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr)
-{
- return daddr;
-}
-
-static inline void
-dma_cache_sync(struct device *dev, void *vaddr, size_t size,
- enum dma_data_direction dir)
-{
- flush_write_buffers();
-}
-
-static inline unsigned long dma_alloc_coherent_mask(struct device *dev,
- gfp_t gfp)
-{
- unsigned long dma_mask = 0;
-
- dma_mask = dev->coherent_dma_mask;
- if (!dma_mask)
- dma_mask = (gfp & GFP_DMA) ? DMA_BIT_MASK(24) : DMA_BIT_MASK(32);
-
- return dma_mask;
-}
-
-static inline gfp_t dma_alloc_coherent_gfp_flags(struct device *dev, gfp_t gfp)
-{
- unsigned long dma_mask = dma_alloc_coherent_mask(dev, gfp);
-
- if (dma_mask <= DMA_BIT_MASK(24))
- gfp |= GFP_DMA;
-#ifdef CONFIG_X86_64
- if (dma_mask <= DMA_BIT_MASK(32) && !(gfp & GFP_DMA))
- gfp |= GFP_DMA32;
-#endif
- return gfp;
-}
-
-static inline void *
-dma_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle,
- gfp_t gfp)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
- void *memory;
-
- gfp &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
-
- if (dma_alloc_from_coherent(dev, size, dma_handle, &memory))
- return memory;
-
- if (!dev)
- dev = &x86_dma_fallback_dev;
-
- if (!is_device_dma_capable(dev))
- return NULL;
-
- if (!ops->alloc_coherent)
- return NULL;
-
- memory = ops->alloc_coherent(dev, size, dma_handle,
- dma_alloc_coherent_gfp_flags(dev, gfp));
- debug_dma_alloc_coherent(dev, size, *dma_handle, memory);
-
- return memory;
-}
-
-static inline void dma_free_coherent(struct device *dev, size_t size,
- void *vaddr, dma_addr_t bus)
-{
- struct dma_map_ops *ops = get_dma_ops(dev);
-
- WARN_ON(irqs_disabled()); /* for portability */
-
- if (dma_release_from_coherent(dev, get_order(size), vaddr))
- return;
-
- debug_dma_free_coherent(dev, size, vaddr, bus);
- if (ops->free_coherent)
- ops->free_coherent(dev, size, vaddr, bus);
}
#endif
diff --git a/arch/x86/include/asm/dma.h b/arch/x86/include/asm/dma.h
index 057099e5faba..8ae6e0e11b8b 100644
--- a/arch/x86/include/asm/dma.h
+++ b/arch/x86/include/asm/dma.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* linux/include/asm/dma.h: Defines for using and allocating dma channels.
* Written by Hennus Bergman, 1992.
@@ -69,22 +70,18 @@
#define MAX_DMA_CHANNELS 8
-#ifdef CONFIG_X86_32
-
-/* The maximum address that we can perform a DMA transfer to on this platform */
-#define MAX_DMA_ADDRESS (PAGE_OFFSET + 0x1000000)
-
-#else
-
/* 16MB ISA DMA zone */
-#define MAX_DMA_PFN ((16 * 1024 * 1024) >> PAGE_SHIFT)
+#define MAX_DMA_PFN ((16UL * 1024 * 1024) >> PAGE_SHIFT)
/* 4GB broken PCI/AGP hardware bus master zone */
-#define MAX_DMA32_PFN ((4UL * 1024 * 1024 * 1024) >> PAGE_SHIFT)
+#define MAX_DMA32_PFN (1UL << (32 - PAGE_SHIFT))
+#ifdef CONFIG_X86_32
+/* The maximum address that we can perform a DMA transfer to on this platform */
+#define MAX_DMA_ADDRESS (PAGE_OFFSET + 0x1000000)
+#else
/* Compat define for old dma zone */
#define MAX_DMA_ADDRESS ((unsigned long)__va(MAX_DMA_PFN << PAGE_SHIFT))
-
#endif
/* 8237 DMA controllers */
@@ -310,12 +307,4 @@ extern int request_dma(unsigned int dmanr, const char *device_id);
extern void free_dma(unsigned int dmanr);
#endif
-/* From PCI */
-
-#ifdef CONFIG_PCI
-extern int isa_dma_bridge_buggy;
-#else
-#define isa_dma_bridge_buggy (0)
-#endif
-
#endif /* _ASM_X86_DMA_H */
diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h
index fd8f9e2ca35f..b825cb201251 100644
--- a/arch/x86/include/asm/dmi.h
+++ b/arch/x86/include/asm/dmi.h
@@ -1,10 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_DMI_H
#define _ASM_X86_DMI_H
#include <linux/compiler.h>
#include <linux/init.h>
+#include <linux/io.h>
-#include <asm/io.h>
#include <asm/setup.h>
static __always_inline __init void *dmi_alloc(unsigned len)
@@ -13,7 +14,9 @@ static __always_inline __init void *dmi_alloc(unsigned len)
}
/* Use early IO mappings for DMI because it's initialized early */
-#define dmi_ioremap early_ioremap
-#define dmi_iounmap early_iounmap
+#define dmi_early_remap early_memremap
+#define dmi_early_unmap early_memunmap
+#define dmi_remap(_x, _l) memremap(_x, _l, MEMREMAP_WB)
+#define dmi_unmap(_x) memunmap(_x)
#endif /* _ASM_X86_DMI_H */
diff --git a/arch/x86/include/asm/doublefault.h b/arch/x86/include/asm/doublefault.h
new file mode 100644
index 000000000000..54a6e4a2e132
--- /dev/null
+++ b/arch/x86/include/asm/doublefault.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_DOUBLEFAULT_H
+#define _ASM_X86_DOUBLEFAULT_H
+
+#ifdef CONFIG_X86_32
+extern void doublefault_init_cpu_tss(void);
+#else
+static inline void doublefault_init_cpu_tss(void)
+{
+}
+#endif
+
+#endif /* _ASM_X86_DOUBLEFAULT_H */
diff --git a/arch/x86/include/asm/dwarf2.h b/arch/x86/include/asm/dwarf2.h
index 326099199318..430fca13bb56 100644
--- a/arch/x86/include/asm/dwarf2.h
+++ b/arch/x86/include/asm/dwarf2.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_DWARF2_H
#define _ASM_X86_DWARF2_H
@@ -5,15 +6,6 @@
#warning "asm/dwarf2.h should be only included in pure assembly files"
#endif
-/*
- * Macros for dwarf2 CFI unwind table entries.
- * See "as.info" for details on these pseudo ops. Unfortunately
- * they are only supported in very new binutils, so define them
- * away for older version.
- */
-
-#ifdef CONFIG_AS_CFI
-
#define CFI_STARTPROC .cfi_startproc
#define CFI_ENDPROC .cfi_endproc
#define CFI_DEF_CFA .cfi_def_cfa
@@ -27,118 +19,23 @@
#define CFI_REMEMBER_STATE .cfi_remember_state
#define CFI_RESTORE_STATE .cfi_restore_state
#define CFI_UNDEFINED .cfi_undefined
+#define CFI_ESCAPE .cfi_escape
-#ifdef CONFIG_AS_CFI_SIGNAL_FRAME
-#define CFI_SIGNAL_FRAME .cfi_signal_frame
-#else
-#define CFI_SIGNAL_FRAME
-#endif
-
-#if defined(CONFIG_AS_CFI_SECTIONS) && defined(__ASSEMBLY__)
+#ifndef BUILD_VDSO
/*
* Emit CFI data in .debug_frame sections, not .eh_frame sections.
* The latter we currently just discard since we don't do DWARF
* unwinding at runtime. So only the offline DWARF information is
- * useful to anyone. Note we should not use this directive if this
- * file is used in the vDSO assembly, or if vmlinux.lds.S gets
- * changed so it doesn't discard .eh_frame.
+ * useful to anyone. Note we should not use this directive if we
+ * ever decide to enable DWARF unwinding at runtime.
*/
.cfi_sections .debug_frame
-#endif
-
#else
-
-/*
- * Due to the structure of pre-exisiting code, don't use assembler line
- * comment character # to ignore the arguments. Instead, use a dummy macro.
- */
-.macro cfi_ignore a=0, b=0, c=0, d=0
-.endm
-
-#define CFI_STARTPROC cfi_ignore
-#define CFI_ENDPROC cfi_ignore
-#define CFI_DEF_CFA cfi_ignore
-#define CFI_DEF_CFA_REGISTER cfi_ignore
-#define CFI_DEF_CFA_OFFSET cfi_ignore
-#define CFI_ADJUST_CFA_OFFSET cfi_ignore
-#define CFI_OFFSET cfi_ignore
-#define CFI_REL_OFFSET cfi_ignore
-#define CFI_REGISTER cfi_ignore
-#define CFI_RESTORE cfi_ignore
-#define CFI_REMEMBER_STATE cfi_ignore
-#define CFI_RESTORE_STATE cfi_ignore
-#define CFI_UNDEFINED cfi_ignore
-#define CFI_SIGNAL_FRAME cfi_ignore
-
+ /*
+ * For the vDSO, emit both runtime unwind information and debug
+ * symbols for the .dbg file.
+ */
+ .cfi_sections .eh_frame, .debug_frame
#endif
-/*
- * An attempt to make CFI annotations more or less
- * correct and shorter. It is implied that you know
- * what you're doing if you use them.
- */
-#ifdef __ASSEMBLY__
-#ifdef CONFIG_X86_64
- .macro pushq_cfi reg
- pushq \reg
- CFI_ADJUST_CFA_OFFSET 8
- .endm
-
- .macro popq_cfi reg
- popq \reg
- CFI_ADJUST_CFA_OFFSET -8
- .endm
-
- .macro pushfq_cfi
- pushfq
- CFI_ADJUST_CFA_OFFSET 8
- .endm
-
- .macro popfq_cfi
- popfq
- CFI_ADJUST_CFA_OFFSET -8
- .endm
-
- .macro movq_cfi reg offset=0
- movq %\reg, \offset(%rsp)
- CFI_REL_OFFSET \reg, \offset
- .endm
-
- .macro movq_cfi_restore offset reg
- movq \offset(%rsp), %\reg
- CFI_RESTORE \reg
- .endm
-#else /*!CONFIG_X86_64*/
- .macro pushl_cfi reg
- pushl \reg
- CFI_ADJUST_CFA_OFFSET 4
- .endm
-
- .macro popl_cfi reg
- popl \reg
- CFI_ADJUST_CFA_OFFSET -4
- .endm
-
- .macro pushfl_cfi
- pushfl
- CFI_ADJUST_CFA_OFFSET 4
- .endm
-
- .macro popfl_cfi
- popfl
- CFI_ADJUST_CFA_OFFSET -4
- .endm
-
- .macro movl_cfi reg offset=0
- movl %\reg, \offset(%esp)
- CFI_REL_OFFSET \reg, \offset
- .endm
-
- .macro movl_cfi_restore offset reg
- movl \offset(%esp), %\reg
- CFI_RESTORE \reg
- .endm
-#endif /*!CONFIG_X86_64*/
-#endif /*__ASSEMBLY__*/
-
#endif /* _ASM_X86_DWARF2_H */
diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h
deleted file mode 100644
index 908b96957d88..000000000000
--- a/arch/x86/include/asm/e820.h
+++ /dev/null
@@ -1,149 +0,0 @@
-#ifndef _ASM_X86_E820_H
-#define _ASM_X86_E820_H
-#define E820MAP 0x2d0 /* our map */
-#define E820MAX 128 /* number of entries in E820MAP */
-
-/*
- * Legacy E820 BIOS limits us to 128 (E820MAX) nodes due to the
- * constrained space in the zeropage. If we have more nodes than
- * that, and if we've booted off EFI firmware, then the EFI tables
- * passed us from the EFI firmware can list more nodes. Size our
- * internal memory map tables to have room for these additional
- * nodes, based on up to three entries per node for which the
- * kernel was built: MAX_NUMNODES == (1 << CONFIG_NODES_SHIFT),
- * plus E820MAX, allowing space for the possible duplicate E820
- * entries that might need room in the same arrays, prior to the
- * call to sanitize_e820_map() to remove duplicates. The allowance
- * of three memory map entries per node is "enough" entries for
- * the initial hardware platform motivating this mechanism to make
- * use of additional EFI map entries. Future platforms may want
- * to allow more than three entries per node or otherwise refine
- * this size.
- */
-
-/*
- * Odd: 'make headers_check' complains about numa.h if I try
- * to collapse the next two #ifdef lines to a single line:
- * #if defined(__KERNEL__) && defined(CONFIG_EFI)
- */
-#ifdef __KERNEL__
-#ifdef CONFIG_EFI
-#include <linux/numa.h>
-#define E820_X_MAX (E820MAX + 3 * MAX_NUMNODES)
-#else /* ! CONFIG_EFI */
-#define E820_X_MAX E820MAX
-#endif
-#else /* ! __KERNEL__ */
-#define E820_X_MAX E820MAX
-#endif
-
-#define E820NR 0x1e8 /* # entries in E820MAP */
-
-#define E820_RAM 1
-#define E820_RESERVED 2
-#define E820_ACPI 3
-#define E820_NVS 4
-#define E820_UNUSABLE 5
-
-/*
- * reserved RAM used by kernel itself
- * if CONFIG_INTEL_TXT is enabled, memory of this type will be
- * included in the S3 integrity calculation and so should not include
- * any memory that BIOS might alter over the S3 transition
- */
-#define E820_RESERVED_KERN 128
-
-#ifndef __ASSEMBLY__
-#include <linux/types.h>
-struct e820entry {
- __u64 addr; /* start of memory segment */
- __u64 size; /* size of memory segment */
- __u32 type; /* type of memory segment */
-} __attribute__((packed));
-
-struct e820map {
- __u32 nr_map;
- struct e820entry map[E820_X_MAX];
-};
-
-#define ISA_START_ADDRESS 0xa0000
-#define ISA_END_ADDRESS 0x100000
-
-#define BIOS_BEGIN 0x000a0000
-#define BIOS_END 0x00100000
-
-#define BIOS_ROM_BASE 0xffe00000
-#define BIOS_ROM_END 0xffffffff
-
-#ifdef __KERNEL__
-/* see comment in arch/x86/kernel/e820.c */
-extern struct e820map e820;
-extern struct e820map e820_saved;
-
-extern unsigned long pci_mem_start;
-extern int e820_any_mapped(u64 start, u64 end, unsigned type);
-extern int e820_all_mapped(u64 start, u64 end, unsigned type);
-extern void e820_add_region(u64 start, u64 size, int type);
-extern void e820_print_map(char *who);
-extern int
-sanitize_e820_map(struct e820entry *biosmap, int max_nr_map, u32 *pnr_map);
-extern u64 e820_update_range(u64 start, u64 size, unsigned old_type,
- unsigned new_type);
-extern u64 e820_remove_range(u64 start, u64 size, unsigned old_type,
- int checktype);
-extern void update_e820(void);
-extern void e820_setup_gap(void);
-extern int e820_search_gap(unsigned long *gapstart, unsigned long *gapsize,
- unsigned long start_addr, unsigned long long end_addr);
-struct setup_data;
-extern void parse_e820_ext(struct setup_data *data);
-
-#if defined(CONFIG_X86_64) || \
- (defined(CONFIG_X86_32) && defined(CONFIG_HIBERNATION))
-extern void e820_mark_nosave_regions(unsigned long limit_pfn);
-#else
-static inline void e820_mark_nosave_regions(unsigned long limit_pfn)
-{
-}
-#endif
-
-#ifdef CONFIG_MEMTEST
-extern void early_memtest(unsigned long start, unsigned long end);
-#else
-static inline void early_memtest(unsigned long start, unsigned long end)
-{
-}
-#endif
-
-extern unsigned long e820_end_of_ram_pfn(void);
-extern unsigned long e820_end_of_low_ram_pfn(void);
-extern u64 early_reserve_e820(u64 startt, u64 sizet, u64 align);
-
-void memblock_x86_fill(void);
-void memblock_find_dma_reserve(void);
-
-extern void finish_e820_parsing(void);
-extern void e820_reserve_resources(void);
-extern void e820_reserve_resources_late(void);
-extern void setup_memory_map(void);
-extern char *default_machine_specific_memory_setup(void);
-
-/*
- * Returns true iff the specified range [s,e) is completely contained inside
- * the ISA region.
- */
-static inline bool is_ISA_range(u64 s, u64 e)
-{
- return s >= ISA_START_ADDRESS && e <= ISA_END_ADDRESS;
-}
-
-#endif /* __KERNEL__ */
-#endif /* __ASSEMBLY__ */
-
-#ifdef __KERNEL__
-#include <linux/ioport.h>
-
-#define HIGH_MEMORY (1024*1024)
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_X86_E820_H */
diff --git a/arch/x86/include/asm/e820/api.h b/arch/x86/include/asm/e820/api.h
new file mode 100644
index 000000000000..e8f58ddd06d9
--- /dev/null
+++ b/arch/x86/include/asm/e820/api.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_E820_API_H
+#define _ASM_E820_API_H
+
+#include <asm/e820/types.h>
+
+extern struct e820_table *e820_table;
+extern struct e820_table *e820_table_kexec;
+extern struct e820_table *e820_table_firmware;
+
+extern unsigned long pci_mem_start;
+
+extern bool e820__mapped_raw_any(u64 start, u64 end, enum e820_type type);
+extern bool e820__mapped_any(u64 start, u64 end, enum e820_type type);
+extern bool e820__mapped_all(u64 start, u64 end, enum e820_type type);
+
+extern void e820__range_add (u64 start, u64 size, enum e820_type type);
+extern u64 e820__range_update(u64 start, u64 size, enum e820_type old_type, enum e820_type new_type);
+extern u64 e820__range_remove(u64 start, u64 size, enum e820_type old_type, bool check_type);
+
+extern void e820__print_table(char *who);
+extern int e820__update_table(struct e820_table *table);
+extern void e820__update_table_print(void);
+
+extern unsigned long e820__end_of_ram_pfn(void);
+extern unsigned long e820__end_of_low_ram_pfn(void);
+
+extern u64 e820__memblock_alloc_reserved(u64 size, u64 align);
+extern void e820__memblock_setup(void);
+
+extern void e820__reserve_setup_data(void);
+extern void e820__finish_early_params(void);
+extern void e820__reserve_resources(void);
+extern void e820__reserve_resources_late(void);
+
+extern void e820__memory_setup(void);
+extern void e820__memory_setup_extended(u64 phys_addr, u32 data_len);
+extern char *e820__memory_setup_default(void);
+extern void e820__setup_pci_gap(void);
+
+extern void e820__reallocate_tables(void);
+extern void e820__register_nosave_regions(unsigned long limit_pfn);
+
+extern int e820__get_entry_type(u64 start, u64 end);
+
+/*
+ * Returns true iff the specified range [start,end) is completely contained inside
+ * the ISA region.
+ */
+static inline bool is_ISA_range(u64 start, u64 end)
+{
+ return start >= ISA_START_ADDRESS && end <= ISA_END_ADDRESS;
+}
+
+#endif /* _ASM_E820_API_H */
diff --git a/arch/x86/include/asm/e820/types.h b/arch/x86/include/asm/e820/types.h
new file mode 100644
index 000000000000..314f75d886d0
--- /dev/null
+++ b/arch/x86/include/asm/e820/types.h
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_E820_TYPES_H
+#define _ASM_E820_TYPES_H
+
+#include <uapi/asm/bootparam.h>
+
+/*
+ * These are the E820 types known to the kernel:
+ */
+enum e820_type {
+ E820_TYPE_RAM = 1,
+ E820_TYPE_RESERVED = 2,
+ E820_TYPE_ACPI = 3,
+ E820_TYPE_NVS = 4,
+ E820_TYPE_UNUSABLE = 5,
+ E820_TYPE_PMEM = 7,
+
+ /*
+ * This is a non-standardized way to represent ADR or
+ * NVDIMM regions that persist over a reboot.
+ *
+ * The kernel will ignore their special capabilities
+ * unless the CONFIG_X86_PMEM_LEGACY=y option is set.
+ *
+ * ( Note that older platforms also used 6 for the same
+ * type of memory, but newer versions switched to 12 as
+ * 6 was assigned differently. Some time they will learn... )
+ */
+ E820_TYPE_PRAM = 12,
+
+ /*
+ * Special-purpose memory is indicated to the system via the
+ * EFI_MEMORY_SP attribute. Define an e820 translation of this
+ * memory type for the purpose of reserving this range and
+ * marking it with the IORES_DESC_SOFT_RESERVED designation.
+ */
+ E820_TYPE_SOFT_RESERVED = 0xefffffff,
+
+ /*
+ * Reserved RAM used by the kernel itself if
+ * CONFIG_INTEL_TXT=y is enabled, memory of this type
+ * will be included in the S3 integrity calculation
+ * and so should not include any memory that the BIOS
+ * might alter over the S3 transition:
+ */
+ E820_TYPE_RESERVED_KERN = 128,
+};
+
+/*
+ * A single E820 map entry, describing a memory range of [addr...addr+size-1],
+ * of 'type' memory type:
+ *
+ * (We pack it because there can be thousands of them on large systems.)
+ */
+struct e820_entry {
+ u64 addr;
+ u64 size;
+ enum e820_type type;
+} __attribute__((packed));
+
+/*
+ * The legacy E820 BIOS limits us to 128 (E820_MAX_ENTRIES_ZEROPAGE) nodes
+ * due to the constrained space in the zeropage.
+ *
+ * On large systems we can easily have thousands of nodes with RAM,
+ * which cannot be fit into so few entries - so we have a mechanism
+ * to extend the e820 table size at build-time, via the E820_MAX_ENTRIES
+ * define below.
+ *
+ * ( Those extra entries are enumerated via the EFI memory map, not
+ * via the legacy zeropage mechanism. )
+ *
+ * Size our internal memory map tables to have room for these additional
+ * entries, based on a heuristic calculation: up to three entries per
+ * NUMA node, plus E820_MAX_ENTRIES_ZEROPAGE for some extra space.
+ *
+ * This allows for bootstrap/firmware quirks such as possible duplicate
+ * E820 entries that might need room in the same arrays, prior to the
+ * call to e820__update_table() to remove duplicates. The allowance
+ * of three memory map entries per node is "enough" entries for
+ * the initial hardware platform motivating this mechanism to make
+ * use of additional EFI map entries. Future platforms may want
+ * to allow more than three entries per node or otherwise refine
+ * this size.
+ */
+
+#include <linux/numa.h>
+
+#define E820_MAX_ENTRIES (E820_MAX_ENTRIES_ZEROPAGE + 3*MAX_NUMNODES)
+
+/*
+ * The whole array of E820 entries:
+ */
+struct e820_table {
+ __u32 nr_entries;
+ struct e820_entry entries[E820_MAX_ENTRIES];
+};
+
+/*
+ * Various well-known legacy memory ranges in physical memory:
+ */
+#define ISA_START_ADDRESS 0x000a0000
+#define ISA_END_ADDRESS 0x00100000
+
+#define BIOS_BEGIN 0x000a0000
+#define BIOS_END 0x00100000
+
+#define HIGH_MEMORY 0x00100000
+
+#define BIOS_ROM_BASE 0xffe00000
+#define BIOS_ROM_END 0xffffffff
+
+#endif /* _ASM_E820_TYPES_H */
diff --git a/arch/x86/include/asm/edac.h b/arch/x86/include/asm/edac.h
index e9b57ecc70c5..426fc53ff803 100644
--- a/arch/x86/include/asm/edac.h
+++ b/arch/x86/include/asm/edac.h
@@ -1,9 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_EDAC_H
#define _ASM_X86_EDAC_H
/* ECC atomic, DMA, SMP and interrupt safe scrub function */
-static inline void atomic_scrub(void *va, u32 size)
+static inline void edac_atomic_scrub(void *va, u32 size)
{
u32 i, *virt_addr = va;
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 8e4a16508d4e..419280d263d2 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -1,110 +1,469 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_EFI_H
#define _ASM_X86_EFI_H
-#ifdef CONFIG_X86_32
+#include <asm/fpu/api.h>
+#include <asm/processor-flags.h>
+#include <asm/tlb.h>
+#include <asm/nospec-branch.h>
+#include <asm/mmu_context.h>
+#include <asm/ibt.h>
+#include <linux/build_bug.h>
+#include <linux/kernel.h>
+#include <linux/pgtable.h>
+
+extern unsigned long efi_fw_vendor, efi_config_table;
+extern unsigned long efi_mixed_mode_stack_pa;
+
+/*
+ * We map the EFI regions needed for runtime services non-contiguously,
+ * with preserved alignment on virtual addresses starting from -4G down
+ * for a total max space of 64G. This way, we provide for stable runtime
+ * services addresses across kernels so that a kexec'd kernel can still
+ * use them.
+ *
+ * This is the main reason why we're doing stable VA mappings for RT
+ * services.
+ */
+
+#define EFI32_LOADER_SIGNATURE "EL32"
+#define EFI64_LOADER_SIGNATURE "EL64"
+
+#define ARCH_EFI_IRQ_FLAGS_MASK X86_EFLAGS_IF
+
+/*
+ * The EFI services are called through variadic functions in many cases. These
+ * functions are implemented in assembler and support only a fixed number of
+ * arguments. The macros below allows us to check at build time that we don't
+ * try to call them with too many arguments.
+ *
+ * __efi_nargs() will return the number of arguments if it is 7 or less, and
+ * cause a BUILD_BUG otherwise. The limitations of the C preprocessor make it
+ * impossible to calculate the exact number of arguments beyond some
+ * pre-defined limit. The maximum number of arguments currently supported by
+ * any of the thunks is 7, so this is good enough for now and can be extended
+ * in the obvious way if we ever need more.
+ */
+
+#define __efi_nargs(...) __efi_nargs_(__VA_ARGS__)
+#define __efi_nargs_(...) __efi_nargs__(0, ##__VA_ARGS__, \
+ __efi_arg_sentinel(9), __efi_arg_sentinel(8), \
+ __efi_arg_sentinel(7), __efi_arg_sentinel(6), \
+ __efi_arg_sentinel(5), __efi_arg_sentinel(4), \
+ __efi_arg_sentinel(3), __efi_arg_sentinel(2), \
+ __efi_arg_sentinel(1), __efi_arg_sentinel(0))
+#define __efi_nargs__(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, n, ...) \
+ __take_second_arg(n, \
+ ({ BUILD_BUG_ON_MSG(1, "__efi_nargs limit exceeded"); 10; }))
+#define __efi_arg_sentinel(n) , n
-extern unsigned long asmlinkage efi_call_phys(void *, ...);
-
-#define efi_call_phys0(f) efi_call_phys(f)
-#define efi_call_phys1(f, a1) efi_call_phys(f, a1)
-#define efi_call_phys2(f, a1, a2) efi_call_phys(f, a1, a2)
-#define efi_call_phys3(f, a1, a2, a3) efi_call_phys(f, a1, a2, a3)
-#define efi_call_phys4(f, a1, a2, a3, a4) \
- efi_call_phys(f, a1, a2, a3, a4)
-#define efi_call_phys5(f, a1, a2, a3, a4, a5) \
- efi_call_phys(f, a1, a2, a3, a4, a5)
-#define efi_call_phys6(f, a1, a2, a3, a4, a5, a6) \
- efi_call_phys(f, a1, a2, a3, a4, a5, a6)
/*
- * Wrap all the virtual calls in a way that forces the parameters on the stack.
+ * __efi_nargs_check(f, n, ...) will cause a BUILD_BUG if the ellipsis
+ * represents more than n arguments.
*/
-#define efi_call_virt(f, args...) \
- ((efi_##f##_t __attribute__((regparm(0)))*)efi.systab->runtime->f)(args)
+#define __efi_nargs_check(f, n, ...) \
+ __efi_nargs_check_(f, __efi_nargs(__VA_ARGS__), n)
+#define __efi_nargs_check_(f, p, n) __efi_nargs_check__(f, p, n)
+#define __efi_nargs_check__(f, p, n) ({ \
+ BUILD_BUG_ON_MSG( \
+ (p) > (n), \
+ #f " called with too many arguments (" #p ">" #n ")"); \
+})
-#define efi_call_virt0(f) efi_call_virt(f)
-#define efi_call_virt1(f, a1) efi_call_virt(f, a1)
-#define efi_call_virt2(f, a1, a2) efi_call_virt(f, a1, a2)
-#define efi_call_virt3(f, a1, a2, a3) efi_call_virt(f, a1, a2, a3)
-#define efi_call_virt4(f, a1, a2, a3, a4) \
- efi_call_virt(f, a1, a2, a3, a4)
-#define efi_call_virt5(f, a1, a2, a3, a4, a5) \
- efi_call_virt(f, a1, a2, a3, a4, a5)
-#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \
- efi_call_virt(f, a1, a2, a3, a4, a5, a6)
+static inline void efi_fpu_begin(void)
+{
+ /*
+ * The UEFI calling convention (UEFI spec 2.3.2 and 2.3.4) requires
+ * that FCW and MXCSR (64-bit) must be initialized prior to calling
+ * UEFI code. (Oddly the spec does not require that the FPU stack
+ * be empty.)
+ */
+ kernel_fpu_begin_mask(KFPU_387 | KFPU_MXCSR);
+}
-#define efi_ioremap(addr, size, type) ioremap_cache(addr, size)
+static inline void efi_fpu_end(void)
+{
+ kernel_fpu_end();
+}
+
+#ifdef CONFIG_X86_32
+#define arch_efi_call_virt_setup() \
+({ \
+ efi_fpu_begin(); \
+ firmware_restrict_branch_speculation_start(); \
+})
+
+#define arch_efi_call_virt_teardown() \
+({ \
+ firmware_restrict_branch_speculation_end(); \
+ efi_fpu_end(); \
+})
#else /* !CONFIG_X86_32 */
-extern u64 efi_call0(void *fp);
-extern u64 efi_call1(void *fp, u64 arg1);
-extern u64 efi_call2(void *fp, u64 arg1, u64 arg2);
-extern u64 efi_call3(void *fp, u64 arg1, u64 arg2, u64 arg3);
-extern u64 efi_call4(void *fp, u64 arg1, u64 arg2, u64 arg3, u64 arg4);
-extern u64 efi_call5(void *fp, u64 arg1, u64 arg2, u64 arg3,
- u64 arg4, u64 arg5);
-extern u64 efi_call6(void *fp, u64 arg1, u64 arg2, u64 arg3,
- u64 arg4, u64 arg5, u64 arg6);
-
-#define efi_call_phys0(f) \
- efi_call0((void *)(f))
-#define efi_call_phys1(f, a1) \
- efi_call1((void *)(f), (u64)(a1))
-#define efi_call_phys2(f, a1, a2) \
- efi_call2((void *)(f), (u64)(a1), (u64)(a2))
-#define efi_call_phys3(f, a1, a2, a3) \
- efi_call3((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3))
-#define efi_call_phys4(f, a1, a2, a3, a4) \
- efi_call4((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
- (u64)(a4))
-#define efi_call_phys5(f, a1, a2, a3, a4, a5) \
- efi_call5((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
- (u64)(a4), (u64)(a5))
-#define efi_call_phys6(f, a1, a2, a3, a4, a5, a6) \
- efi_call6((void *)(f), (u64)(a1), (u64)(a2), (u64)(a3), \
- (u64)(a4), (u64)(a5), (u64)(a6))
-
-#define efi_call_virt0(f) \
- efi_call0((void *)(efi.systab->runtime->f))
-#define efi_call_virt1(f, a1) \
- efi_call1((void *)(efi.systab->runtime->f), (u64)(a1))
-#define efi_call_virt2(f, a1, a2) \
- efi_call2((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2))
-#define efi_call_virt3(f, a1, a2, a3) \
- efi_call3((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
- (u64)(a3))
-#define efi_call_virt4(f, a1, a2, a3, a4) \
- efi_call4((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
- (u64)(a3), (u64)(a4))
-#define efi_call_virt5(f, a1, a2, a3, a4, a5) \
- efi_call5((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
- (u64)(a3), (u64)(a4), (u64)(a5))
-#define efi_call_virt6(f, a1, a2, a3, a4, a5, a6) \
- efi_call6((void *)(efi.systab->runtime->f), (u64)(a1), (u64)(a2), \
- (u64)(a3), (u64)(a4), (u64)(a5), (u64)(a6))
-
-extern void __iomem *efi_ioremap(unsigned long addr, unsigned long size,
- u32 type);
+#define EFI_LOADER_SIGNATURE "EL64"
+
+extern asmlinkage u64 __efi_call(void *fp, ...);
+
+extern bool efi_disable_ibt_for_runtime;
+
+#define efi_call(...) ({ \
+ __efi_nargs_check(efi_call, 7, __VA_ARGS__); \
+ __efi_call(__VA_ARGS__); \
+})
+
+#define arch_efi_call_virt_setup() \
+({ \
+ efi_sync_low_kernel_mappings(); \
+ efi_fpu_begin(); \
+ firmware_restrict_branch_speculation_start(); \
+ efi_enter_mm(); \
+})
+
+#undef arch_efi_call_virt
+#define arch_efi_call_virt(p, f, args...) ({ \
+ u64 ret, ibt = ibt_save(efi_disable_ibt_for_runtime); \
+ ret = efi_call((void *)p->f, args); \
+ ibt_restore(ibt); \
+ ret; \
+})
+
+#define arch_efi_call_virt_teardown() \
+({ \
+ efi_leave_mm(); \
+ firmware_restrict_branch_speculation_end(); \
+ efi_fpu_end(); \
+})
+
+#ifdef CONFIG_KASAN
+/*
+ * CONFIG_KASAN may redefine memset to __memset. __memset function is present
+ * only in kernel binary. Since the EFI stub linked into a separate binary it
+ * doesn't have __memset(). So we should use standard memset from
+ * arch/x86/boot/compressed/string.c. The same applies to memcpy and memmove.
+ */
+#undef memcpy
+#undef memset
+#undef memmove
+#endif
#endif /* CONFIG_X86_32 */
-extern int add_efi_memmap;
-extern void efi_memblock_x86_reserve_range(void);
-extern void efi_call_phys_prelog(void);
-extern void efi_call_phys_epilog(void);
+extern int __init efi_memblock_x86_reserve_range(void);
+extern void __init efi_print_memmap(void);
+extern void __init efi_map_region(efi_memory_desc_t *md);
+extern void __init efi_map_region_fixed(efi_memory_desc_t *md);
+extern void efi_sync_low_kernel_mappings(void);
+extern int __init efi_alloc_page_tables(void);
+extern int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages);
+extern void __init efi_runtime_update_mappings(void);
+extern void __init efi_dump_pagetable(void);
+extern void __init efi_apply_memmap_quirks(void);
+extern int __init efi_reuse_config(u64 tables, int nr_tables);
+extern void efi_delete_dummy_variable(void);
+extern void efi_crash_gracefully_on_page_fault(unsigned long phys_addr);
+extern void efi_free_boot_services(void);
+
+void efi_enter_mm(void);
+void efi_leave_mm(void);
+
+/* kexec external ABI */
+struct efi_setup_data {
+ u64 fw_vendor;
+ u64 __unused;
+ u64 tables;
+ u64 smbios;
+ u64 reserved[8];
+};
+
+extern u64 efi_setup;
+
+#ifdef CONFIG_EFI
+extern u64 __efi64_thunk(u32, ...);
+
+#define efi64_thunk(...) ({ \
+ u64 __pad[3]; /* must have space for 3 args on the stack */ \
+ __efi_nargs_check(efi64_thunk, 9, __VA_ARGS__); \
+ __efi64_thunk(__VA_ARGS__, __pad); \
+})
+
+static inline bool efi_is_mixed(void)
+{
+ if (!IS_ENABLED(CONFIG_EFI_MIXED))
+ return false;
+ return IS_ENABLED(CONFIG_X86_64) && !efi_enabled(EFI_64BIT);
+}
+
+static inline bool efi_runtime_supported(void)
+{
+ if (IS_ENABLED(CONFIG_X86_64) == efi_enabled(EFI_64BIT))
+ return true;
+
+ return IS_ENABLED(CONFIG_EFI_MIXED);
+}
+
+extern void parse_efi_setup(u64 phys_addr, u32 data_len);
+
+extern void efi_thunk_runtime_setup(void);
+efi_status_t efi_set_virtual_address_map(unsigned long memory_map_size,
+ unsigned long descriptor_size,
+ u32 descriptor_version,
+ efi_memory_desc_t *virtual_map,
+ unsigned long systab_phys);
+
+/* arch specific definitions used by the stub code */
+
+#ifdef CONFIG_EFI_MIXED
+
+#define ARCH_HAS_EFISTUB_WRAPPERS
+
+static inline bool efi_is_64bit(void)
+{
+ extern const bool efi_is64;
+
+ return efi_is64;
+}
+
+static inline bool efi_is_native(void)
+{
+ return efi_is_64bit();
+}
+
+#define efi_table_attr(inst, attr) \
+ (efi_is_native() ? (inst)->attr \
+ : efi_mixed_table_attr((inst), attr))
+
+#define efi_mixed_table_attr(inst, attr) \
+ (__typeof__(inst->attr)) \
+ _Generic(inst->mixed_mode.attr, \
+ u32: (unsigned long)(inst->mixed_mode.attr), \
+ default: (inst->mixed_mode.attr))
+
+/*
+ * The following macros allow translating arguments if necessary from native to
+ * mixed mode. The use case for this is to initialize the upper 32 bits of
+ * output parameters, and where the 32-bit method requires a 64-bit argument,
+ * which must be split up into two arguments to be thunked properly.
+ *
+ * As examples, the AllocatePool boot service returns the address of the
+ * allocation, but it will not set the high 32 bits of the address. To ensure
+ * that the full 64-bit address is initialized, we zero-init the address before
+ * calling the thunk.
+ *
+ * The FreePages boot service takes a 64-bit physical address even in 32-bit
+ * mode. For the thunk to work correctly, a native 64-bit call of
+ * free_pages(addr, size)
+ * must be translated to
+ * efi64_thunk(free_pages, addr & U32_MAX, addr >> 32, size)
+ * so that the two 32-bit halves of addr get pushed onto the stack separately.
+ */
+
+static inline void *efi64_zero_upper(void *p)
+{
+ ((u32 *)p)[1] = 0;
+ return p;
+}
+
+static inline u32 efi64_convert_status(efi_status_t status)
+{
+ return (u32)(status | (u64)status >> 32);
+}
+
+#define __efi64_split(val) (val) & U32_MAX, (u64)(val) >> 32
+
+#define __efi64_argmap_free_pages(addr, size) \
+ ((addr), 0, (size))
+
+#define __efi64_argmap_get_memory_map(mm_size, mm, key, size, ver) \
+ ((mm_size), (mm), efi64_zero_upper(key), efi64_zero_upper(size), (ver))
+
+#define __efi64_argmap_allocate_pool(type, size, buffer) \
+ ((type), (size), efi64_zero_upper(buffer))
+
+#define __efi64_argmap_create_event(type, tpl, f, c, event) \
+ ((type), (tpl), (f), (c), efi64_zero_upper(event))
+
+#define __efi64_argmap_set_timer(event, type, time) \
+ ((event), (type), lower_32_bits(time), upper_32_bits(time))
+
+#define __efi64_argmap_wait_for_event(num, event, index) \
+ ((num), (event), efi64_zero_upper(index))
+
+#define __efi64_argmap_handle_protocol(handle, protocol, interface) \
+ ((handle), (protocol), efi64_zero_upper(interface))
+
+#define __efi64_argmap_locate_protocol(protocol, reg, interface) \
+ ((protocol), (reg), efi64_zero_upper(interface))
+
+#define __efi64_argmap_locate_device_path(protocol, path, handle) \
+ ((protocol), (path), efi64_zero_upper(handle))
+
+#define __efi64_argmap_exit(handle, status, size, data) \
+ ((handle), efi64_convert_status(status), (size), (data))
+
+/* PCI I/O */
+#define __efi64_argmap_get_location(protocol, seg, bus, dev, func) \
+ ((protocol), efi64_zero_upper(seg), efi64_zero_upper(bus), \
+ efi64_zero_upper(dev), efi64_zero_upper(func))
+
+/* LoadFile */
+#define __efi64_argmap_load_file(protocol, path, policy, bufsize, buf) \
+ ((protocol), (path), (policy), efi64_zero_upper(bufsize), (buf))
+
+/* Graphics Output Protocol */
+#define __efi64_argmap_query_mode(gop, mode, size, info) \
+ ((gop), (mode), efi64_zero_upper(size), efi64_zero_upper(info))
+
+/* TCG2 protocol */
+#define __efi64_argmap_hash_log_extend_event(prot, fl, addr, size, ev) \
+ ((prot), (fl), 0ULL, (u64)(addr), 0ULL, (u64)(size), 0ULL, ev)
+
+/* DXE services */
+#define __efi64_argmap_get_memory_space_descriptor(phys, desc) \
+ (__efi64_split(phys), (desc))
+
+#define __efi64_argmap_set_memory_space_attributes(phys, size, flags) \
+ (__efi64_split(phys), __efi64_split(size), __efi64_split(flags))
+
+/* file protocol */
+#define __efi64_argmap_open(prot, newh, fname, mode, attr) \
+ ((prot), efi64_zero_upper(newh), (fname), __efi64_split(mode), \
+ __efi64_split(attr))
+
+#define __efi64_argmap_set_position(pos) (__efi64_split(pos))
+
+/* file system protocol */
+#define __efi64_argmap_open_volume(prot, file) \
+ ((prot), efi64_zero_upper(file))
+
+/* Memory Attribute Protocol */
+#define __efi64_argmap_get_memory_attributes(protocol, phys, size, flags) \
+ ((protocol), __efi64_split(phys), __efi64_split(size), (flags))
+
+#define __efi64_argmap_set_memory_attributes(protocol, phys, size, flags) \
+ ((protocol), __efi64_split(phys), __efi64_split(size), __efi64_split(flags))
+
+#define __efi64_argmap_clear_memory_attributes(protocol, phys, size, flags) \
+ ((protocol), __efi64_split(phys), __efi64_split(size), __efi64_split(flags))
-#ifndef CONFIG_EFI
/*
- * IF EFI is not configured, have the EFI calls return -ENOSYS.
+ * The macros below handle the plumbing for the argument mapping. To add a
+ * mapping for a specific EFI method, simply define a macro
+ * __efi64_argmap_<method name>, following the examples above.
*/
-#define efi_call0(_f) (-ENOSYS)
-#define efi_call1(_f, _a1) (-ENOSYS)
-#define efi_call2(_f, _a1, _a2) (-ENOSYS)
-#define efi_call3(_f, _a1, _a2, _a3) (-ENOSYS)
-#define efi_call4(_f, _a1, _a2, _a3, _a4) (-ENOSYS)
-#define efi_call5(_f, _a1, _a2, _a3, _a4, _a5) (-ENOSYS)
-#define efi_call6(_f, _a1, _a2, _a3, _a4, _a5, _a6) (-ENOSYS)
+
+#define __efi64_thunk_map(inst, func, ...) \
+ efi64_thunk(inst->mixed_mode.func, \
+ __efi64_argmap(__efi64_argmap_ ## func(__VA_ARGS__), \
+ (__VA_ARGS__)))
+
+#define __efi64_argmap(mapped, args) \
+ __PASTE(__efi64_argmap__, __efi_nargs(__efi_eat mapped))(mapped, args)
+#define __efi64_argmap__0(mapped, args) __efi_eval mapped
+#define __efi64_argmap__1(mapped, args) __efi_eval args
+
+#define __efi_eat(...)
+#define __efi_eval(...) __VA_ARGS__
+
+static inline efi_status_t __efi64_widen_efi_status(u64 status)
+{
+ /* use rotate to move the value of bit #31 into position #63 */
+ return ror64(rol32(status, 1), 1);
+}
+
+/* The macro below handles dispatching via the thunk if needed */
+
+#define efi_fn_call(inst, func, ...) \
+ (efi_is_native() ? (inst)->func(__VA_ARGS__) \
+ : efi_mixed_call((inst), func, ##__VA_ARGS__))
+
+#define efi_mixed_call(inst, func, ...) \
+ _Generic(inst->func(__VA_ARGS__), \
+ efi_status_t: \
+ __efi64_widen_efi_status( \
+ __efi64_thunk_map(inst, func, ##__VA_ARGS__)), \
+ u64: ({ BUILD_BUG(); ULONG_MAX; }), \
+ default: \
+ (__typeof__(inst->func(__VA_ARGS__))) \
+ __efi64_thunk_map(inst, func, ##__VA_ARGS__))
+
+#else /* CONFIG_EFI_MIXED */
+
+static inline bool efi_is_64bit(void)
+{
+ return IS_ENABLED(CONFIG_X86_64);
+}
+
+#endif /* CONFIG_EFI_MIXED */
+
+extern bool efi_reboot_required(void);
+extern bool efi_is_table_address(unsigned long phys_addr);
+
+extern void efi_reserve_boot_services(void);
+#else
+static inline void parse_efi_setup(u64 phys_addr, u32 data_len) {}
+static inline bool efi_reboot_required(void)
+{
+ return false;
+}
+static inline bool efi_is_table_address(unsigned long phys_addr)
+{
+ return false;
+}
+static inline void efi_reserve_boot_services(void)
+{
+}
#endif /* CONFIG_EFI */
+#ifdef CONFIG_EFI_FAKE_MEMMAP
+extern void __init efi_fake_memmap_early(void);
+extern void __init efi_fake_memmap(void);
+#else
+static inline void efi_fake_memmap_early(void)
+{
+}
+
+static inline void efi_fake_memmap(void)
+{
+}
+#endif
+
+extern int __init efi_memmap_alloc(unsigned int num_entries,
+ struct efi_memory_map_data *data);
+extern void __efi_memmap_free(u64 phys, unsigned long size,
+ unsigned long flags);
+#define __efi_memmap_free __efi_memmap_free
+
+extern int __init efi_memmap_install(struct efi_memory_map_data *data);
+extern int __init efi_memmap_split_count(efi_memory_desc_t *md,
+ struct range *range);
+extern void __init efi_memmap_insert(struct efi_memory_map *old_memmap,
+ void *buf, struct efi_mem_range *mem);
+
+#define arch_ima_efi_boot_mode \
+ ({ extern struct boot_params boot_params; boot_params.secure_boot; })
+
+#ifdef CONFIG_EFI_RUNTIME_MAP
+int efi_get_runtime_map_size(void);
+int efi_get_runtime_map_desc_size(void);
+int efi_runtime_map_copy(void *buf, size_t bufsz);
+#else
+static inline int efi_get_runtime_map_size(void)
+{
+ return 0;
+}
+
+static inline int efi_get_runtime_map_desc_size(void)
+{
+ return 0;
+}
+
+static inline int efi_runtime_map_copy(void *buf, size_t bufsz)
+{
+ return 0;
+}
+
+#endif
+
#endif /* _ASM_X86_EFI_H */
diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index f2ad2163109d..18fd06f7936a 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -1,13 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_ELF_H
#define _ASM_X86_ELF_H
/*
* ELF register definitions..
*/
+#include <linux/thread_info.h>
#include <asm/ptrace.h>
#include <asm/user.h>
#include <asm/auxvec.h>
+#include <asm/fsgsbase.h>
typedef unsigned long elf_greg_t;
@@ -18,8 +21,6 @@ typedef struct user_i387_struct elf_fpregset_t;
#ifdef __i386__
-typedef struct user_fxsr_struct elf_fpxregset_t;
-
#define R_386_NONE 0
#define R_386_32 1
#define R_386_PC32 2
@@ -60,8 +61,7 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
#define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */
#define R_X86_64_8 14 /* Direct 8 bit sign extended */
#define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */
-
-#define R_X86_64_NUM 16
+#define R_X86_64_PC64 24 /* Place relative 64-bit signed */
/*
* These are used to set parameters in the core dumps.
@@ -74,7 +74,12 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
#include <asm/vdso.h>
-extern unsigned int vdso_enabled;
+#ifdef CONFIG_X86_64
+extern unsigned int vdso64_enabled;
+#endif
+#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
+extern unsigned int vdso32_enabled;
+#endif
/*
* This is used to ensure we don't load something for the wrong architecture.
@@ -83,7 +88,6 @@ extern unsigned int vdso_enabled;
(((x)->e_machine == EM_386) || ((x)->e_machine == EM_486))
#include <asm/processor.h>
-#include <asm/system.h>
#ifdef CONFIG_X86_32
#include <asm/desc.h>
@@ -112,7 +116,7 @@ extern unsigned int vdso_enabled;
* now struct_user_regs, they are different)
*/
-#define ELF_CORE_COPY_REGS_COMMON(pr_reg, regs) \
+#define ELF_CORE_COPY_REGS(pr_reg, regs) \
do { \
pr_reg[0] = regs->bx; \
pr_reg[1] = regs->cx; \
@@ -121,27 +125,16 @@ do { \
pr_reg[4] = regs->di; \
pr_reg[5] = regs->bp; \
pr_reg[6] = regs->ax; \
- pr_reg[7] = regs->ds & 0xffff; \
- pr_reg[8] = regs->es & 0xffff; \
- pr_reg[9] = regs->fs & 0xffff; \
+ pr_reg[7] = regs->ds; \
+ pr_reg[8] = regs->es; \
+ pr_reg[9] = regs->fs; \
+ savesegment(gs, pr_reg[10]); \
pr_reg[11] = regs->orig_ax; \
pr_reg[12] = regs->ip; \
- pr_reg[13] = regs->cs & 0xffff; \
+ pr_reg[13] = regs->cs; \
pr_reg[14] = regs->flags; \
pr_reg[15] = regs->sp; \
- pr_reg[16] = regs->ss & 0xffff; \
-} while (0);
-
-#define ELF_CORE_COPY_REGS(pr_reg, regs) \
-do { \
- ELF_CORE_COPY_REGS_COMMON(pr_reg, regs);\
- pr_reg[10] = get_user_gs(regs); \
-} while (0);
-
-#define ELF_CORE_COPY_KERNEL_REGS(pr_reg, regs) \
-do { \
- ELF_CORE_COPY_REGS_COMMON(pr_reg, regs);\
- savesegment(gs, pr_reg[10]); \
+ pr_reg[16] = regs->ss; \
} while (0);
#define ELF_PLATFORM (utsname()->machine)
@@ -155,16 +148,19 @@ do { \
#define elf_check_arch(x) \
((x)->e_machine == EM_X86_64)
-#define compat_elf_check_arch(x) elf_check_arch_ia32(x)
+#define compat_elf_check_arch(x) \
+ (elf_check_arch_ia32(x) || \
+ (IS_ENABLED(CONFIG_X86_X32_ABI) && (x)->e_machine == EM_X86_64))
static inline void elf_common_init(struct thread_struct *t,
struct pt_regs *regs, const u16 ds)
{
- regs->ax = regs->bx = regs->cx = regs->dx = 0;
+ /* ax gets execve's return value. */
+ /*regs->ax = */ regs->bx = regs->cx = regs->dx = 0;
regs->si = regs->di = regs->bp = 0;
regs->r8 = regs->r9 = regs->r10 = regs->r11 = 0;
regs->r12 = regs->r13 = regs->r14 = regs->r15 = 0;
- t->fs = t->gs = 0;
+ t->fsbase = t->gsbase = 0;
t->fsindex = t->gsindex = 0;
t->ds = t->es = ds;
}
@@ -175,11 +171,13 @@ static inline void elf_common_init(struct thread_struct *t,
#define COMPAT_ELF_PLAT_INIT(regs, load_addr) \
elf_common_init(&current->thread, regs, __USER_DS)
-void start_thread_ia32(struct pt_regs *regs, u32 new_ip, u32 new_sp);
-#define compat_start_thread start_thread_ia32
+void compat_start_thread(struct pt_regs *regs, u32 new_ip, u32 new_sp, bool x32);
+#define COMPAT_START_THREAD(ex, regs, new_ip, new_sp) \
+ compat_start_thread(regs, new_ip, new_sp, ex->e_machine == EM_X86_64)
-void set_personality_ia32(void);
-#define COMPAT_SET_PERSONALITY(ex) set_personality_ia32()
+void set_personality_ia32(bool);
+#define COMPAT_SET_PERSONALITY(ex) \
+ set_personality_ia32((ex).e_machine == EM_X86_64)
#define COMPAT_ELF_PLATFORM ("i686")
@@ -213,8 +211,8 @@ do { \
(pr_reg)[18] = (regs)->flags; \
(pr_reg)[19] = (regs)->sp; \
(pr_reg)[20] = (regs)->ss; \
- (pr_reg)[21] = current->thread.fs; \
- (pr_reg)[22] = current->thread.gs; \
+ (pr_reg)[21] = x86_fsbase_read_cpu(); \
+ (pr_reg)[22] = x86_gsbase_read_cpu_inactive(); \
asm("movl %%ds,%0" : "=r" (v)); (pr_reg)[23] = v; \
asm("movl %%es,%0" : "=r" (v)); (pr_reg)[24] = v; \
asm("movl %%fs,%0" : "=r" (v)); (pr_reg)[25] = v; \
@@ -224,7 +222,6 @@ do { \
/* I'm not sure if we can use '-' here */
#define ELF_PLATFORM ("x86_64")
extern void set_personality_64bit(void);
-extern unsigned int sysctl_vsyscall32;
extern int force_personality32;
#endif /* !CONFIG_X86_32 */
@@ -232,18 +229,28 @@ extern int force_personality32;
#define CORE_DUMP_USE_REGSET
#define ELF_EXEC_PAGESIZE 4096
-/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
- use of this is to invoke "./ld.so someprog" to test out a new version of
- the loader. We need to make sure that it is out of the way of the program
- that it will "exec", and that there is sufficient room for the brk. */
-
-#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
+/*
+ * This is the base location for PIE (ET_DYN with INTERP) loads. On
+ * 64-bit, this is above 4GB to leave the entire 32-bit address
+ * space open for things that want to use the area for 32-bit pointers.
+ */
+#define ELF_ET_DYN_BASE (mmap_is_ia32() ? 0x000400000UL : \
+ (DEFAULT_MAP_WINDOW / 3 * 2))
/* This yields a mask that user programs can use to figure out what
instruction set this CPU supports. This could be done in user space,
but it's not easy, and we've already done it here. */
-#define ELF_HWCAP (boot_cpu_data.x86_capability[0])
+#define ELF_HWCAP (boot_cpu_data.x86_capability[CPUID_1_EDX])
+
+extern u32 elf_hwcap2;
+
+/*
+ * HWCAP2 supplies mask with kernel enabled CPU features, so that
+ * the application can discover that it can safely use them.
+ * The bits are defined in uapi/asm/hwcap2.h.
+ */
+#define ELF_HWCAP2 (elf_hwcap2)
/* This yields a string that ld.so will use to load implementation
specific libraries for optimization. This is more specific in
@@ -257,47 +264,96 @@ extern int force_personality32;
/*
* An executable for which elf_read_implies_exec() returns TRUE will
* have the READ_IMPLIES_EXEC personality flag set automatically.
+ *
+ * The decision process for determining the results are:
+ *
+ * CPU: | lacks NX* | has NX, ia32 | has NX, x86_64 |
+ * ELF: | | | |
+ * ---------------------|------------|------------------|----------------|
+ * missing PT_GNU_STACK | exec-all | exec-all | exec-none |
+ * PT_GNU_STACK == RWX | exec-stack | exec-stack | exec-stack |
+ * PT_GNU_STACK == RW | exec-none | exec-none | exec-none |
+ *
+ * exec-all : all PROT_READ user mappings are executable, except when
+ * backed by files on a noexec-filesystem.
+ * exec-none : only PROT_EXEC user mappings are executable.
+ * exec-stack: only the stack and PROT_EXEC user mappings are executable.
+ *
+ * *this column has no architectural effect: NX markings are ignored by
+ * hardware, but may have behavioral effects when "wants X" collides with
+ * "cannot be X" constraints in memory permission flags, as in
+ * https://lkml.kernel.org/r/20190418055759.GA3155@mellanox.com
+ *
*/
#define elf_read_implies_exec(ex, executable_stack) \
- (executable_stack != EXSTACK_DISABLE_X)
+ (mmap_is_ia32() && executable_stack == EXSTACK_DEFAULT)
struct task_struct;
-#define ARCH_DLINFO_IA32(vdso_enabled) \
+#define ARCH_DLINFO_IA32 \
do { \
- if (vdso_enabled) { \
+ if (VDSO_CURRENT_BASE) { \
NEW_AUX_ENT(AT_SYSINFO, VDSO_ENTRY); \
NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_CURRENT_BASE); \
} \
+ NEW_AUX_ENT(AT_MINSIGSTKSZ, get_sigframe_size()); \
} while (0)
+/*
+ * True on X86_32 or when emulating IA32 on X86_64
+ */
+static inline int mmap_is_ia32(void)
+{
+ return IS_ENABLED(CONFIG_X86_32) ||
+ (IS_ENABLED(CONFIG_COMPAT) &&
+ test_thread_flag(TIF_ADDR32));
+}
+
+extern unsigned long task_size_32bit(void);
+extern unsigned long task_size_64bit(int full_addr_space);
+extern unsigned long get_mmap_base(int is_legacy);
+extern bool mmap_address_hint_valid(unsigned long addr, unsigned long len);
+extern unsigned long get_sigframe_size(void);
+
#ifdef CONFIG_X86_32
+#define __STACK_RND_MASK(is32bit) (0x7ff)
#define STACK_RND_MASK (0x7ff)
-#define VDSO_HIGH_BASE (__fix_to_virt(FIX_VDSO))
-
-#define ARCH_DLINFO ARCH_DLINFO_IA32(vdso_enabled)
+#define ARCH_DLINFO ARCH_DLINFO_IA32
/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
#else /* CONFIG_X86_32 */
-#define VDSO_HIGH_BASE 0xffffe000U /* CONFIG_COMPAT_VDSO address */
-
/* 1GB for 64bit, 8MB for 32bit */
-#define STACK_RND_MASK (test_thread_flag(TIF_IA32) ? 0x7ff : 0x3fffff)
+#define __STACK_RND_MASK(is32bit) ((is32bit) ? 0x7ff : 0x3fffff)
+#define STACK_RND_MASK __STACK_RND_MASK(mmap_is_ia32())
#define ARCH_DLINFO \
do { \
- if (vdso_enabled) \
+ if (vdso64_enabled) \
NEW_AUX_ENT(AT_SYSINFO_EHDR, \
- (unsigned long)current->mm->context.vdso); \
+ (unsigned long __force)current->mm->context.vdso); \
+ NEW_AUX_ENT(AT_MINSIGSTKSZ, get_sigframe_size()); \
+} while (0)
+
+/* As a historical oddity, the x32 and x86_64 vDSOs are controlled together. */
+#define ARCH_DLINFO_X32 \
+do { \
+ if (vdso64_enabled) \
+ NEW_AUX_ENT(AT_SYSINFO_EHDR, \
+ (unsigned long __force)current->mm->context.vdso); \
+ NEW_AUX_ENT(AT_MINSIGSTKSZ, get_sigframe_size()); \
} while (0)
#define AT_SYSINFO 32
-#define COMPAT_ARCH_DLINFO ARCH_DLINFO_IA32(sysctl_vsyscall32)
+#define COMPAT_ARCH_DLINFO \
+if (exec->e_machine == EM_X86_64) \
+ ARCH_DLINFO_X32; \
+else if (IS_ENABLED(CONFIG_IA32_EMULATION)) \
+ ARCH_DLINFO_IA32
#define COMPAT_ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000)
@@ -306,18 +362,34 @@ do { \
#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso)
#define VDSO_ENTRY \
- ((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall))
+ ((unsigned long)current->mm->context.vdso + \
+ vdso_image_32.sym___kernel_vsyscall)
struct linux_binprm;
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
extern int arch_setup_additional_pages(struct linux_binprm *bprm,
int uses_interp);
-
-extern int syscall32_setup_pages(struct linux_binprm *, int exstack);
-#define compat_arch_setup_additional_pages syscall32_setup_pages
-
-extern unsigned long arch_randomize_brk(struct mm_struct *mm);
-#define arch_randomize_brk arch_randomize_brk
-
+extern int compat_arch_setup_additional_pages(struct linux_binprm *bprm,
+ int uses_interp, bool x32);
+#define COMPAT_ARCH_SETUP_ADDITIONAL_PAGES(bprm, ex, interpreter) \
+ compat_arch_setup_additional_pages(bprm, interpreter, \
+ (ex->e_machine == EM_X86_64))
+
+extern bool arch_syscall_is_vdso_sigreturn(struct pt_regs *regs);
+
+/* Do not change the values. See get_align_mask() */
+enum align_flags {
+ ALIGN_VA_32 = BIT(0),
+ ALIGN_VA_64 = BIT(1),
+};
+
+struct va_alignment {
+ int flags;
+ unsigned long mask;
+ unsigned long bits;
+} ____cacheline_aligned;
+
+extern struct va_alignment va_align;
+extern unsigned long align_vdso_addr(unsigned long);
#endif /* _ASM_X86_ELF_H */
diff --git a/arch/x86/include/asm/elfcore-compat.h b/arch/x86/include/asm/elfcore-compat.h
new file mode 100644
index 000000000000..f1b6c7a8d8fc
--- /dev/null
+++ b/arch/x86/include/asm/elfcore-compat.h
@@ -0,0 +1,31 @@
+#ifndef _ASM_X86_ELFCORE_COMPAT_H
+#define _ASM_X86_ELFCORE_COMPAT_H
+
+#include <asm/user32.h>
+
+/*
+ * On amd64 we have two 32bit ABIs - i386 and x32. The latter
+ * has bigger registers, so we use it for compat_elf_regset_t.
+ * The former uses i386_elf_prstatus and PRSTATUS_SIZE/SET_PR_FPVALID
+ * are used to choose the size and location of ->pr_fpvalid of
+ * the layout actually used.
+ */
+typedef struct user_regs_struct compat_elf_gregset_t;
+
+struct i386_elf_prstatus
+{
+ struct compat_elf_prstatus_common common;
+ struct user_regs_struct32 pr_reg;
+ compat_int_t pr_fpvalid;
+};
+
+#define PRSTATUS_SIZE \
+ (user_64bit_mode(task_pt_regs(current)) \
+ ? sizeof(struct compat_elf_prstatus) \
+ : sizeof(struct i386_elf_prstatus))
+#define SET_PR_FPVALID(S) \
+ (*(user_64bit_mode(task_pt_regs(current)) \
+ ? &(S)->pr_fpvalid \
+ : &((struct i386_elf_prstatus *)(S))->pr_fpvalid) = 1)
+
+#endif
diff --git a/arch/x86/include/asm/emergency-restart.h b/arch/x86/include/asm/emergency-restart.h
index cc70c1c78ca4..2abde717db31 100644
--- a/arch/x86/include/asm/emergency-restart.h
+++ b/arch/x86/include/asm/emergency-restart.h
@@ -1,20 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_EMERGENCY_RESTART_H
#define _ASM_X86_EMERGENCY_RESTART_H
-enum reboot_type {
- BOOT_TRIPLE = 't',
- BOOT_KBD = 'k',
-#ifdef CONFIG_X86_32
- BOOT_BIOS = 'b',
-#endif
- BOOT_ACPI = 'a',
- BOOT_EFI = 'e',
- BOOT_CF9 = 'p',
- BOOT_CF9_COND = 'q',
-};
-
-extern enum reboot_type reboot_type;
-
extern void machine_emergency_restart(void);
#endif /* _ASM_X86_EMERGENCY_RESTART_H */
diff --git a/arch/x86/include/asm/emulate_prefix.h b/arch/x86/include/asm/emulate_prefix.h
new file mode 100644
index 000000000000..70f5b98a5286
--- /dev/null
+++ b/arch/x86/include/asm/emulate_prefix.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_EMULATE_PREFIX_H
+#define _ASM_X86_EMULATE_PREFIX_H
+
+/*
+ * Virt escape sequences to trigger instruction emulation;
+ * ideally these would decode to 'whole' instruction and not destroy
+ * the instruction stream; sadly this is not true for the 'kvm' one :/
+ */
+
+#define __XEN_EMULATE_PREFIX 0x0f,0x0b,0x78,0x65,0x6e /* ud2 ; .ascii "xen" */
+#define __KVM_EMULATE_PREFIX 0x0f,0x0b,0x6b,0x76,0x6d /* ud2 ; .ascii "kvm" */
+
+#endif
diff --git a/arch/x86/include/asm/enclu.h b/arch/x86/include/asm/enclu.h
new file mode 100644
index 000000000000..b1314e41a744
--- /dev/null
+++ b/arch/x86/include/asm/enclu.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_ENCLU_H
+#define _ASM_X86_ENCLU_H
+
+#define EENTER 0x02
+#define ERESUME 0x03
+#define EEXIT 0x04
+
+#endif /* _ASM_X86_ENCLU_H */
diff --git a/arch/x86/include/asm/entry-common.h b/arch/x86/include/asm/entry-common.h
new file mode 100644
index 000000000000..117903881fe4
--- /dev/null
+++ b/arch/x86/include/asm/entry-common.h
@@ -0,0 +1,98 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _ASM_X86_ENTRY_COMMON_H
+#define _ASM_X86_ENTRY_COMMON_H
+
+#include <linux/randomize_kstack.h>
+#include <linux/user-return-notifier.h>
+
+#include <asm/nospec-branch.h>
+#include <asm/io_bitmap.h>
+#include <asm/fpu/api.h>
+
+/* Check that the stack and regs on entry from user mode are sane. */
+static __always_inline void arch_enter_from_user_mode(struct pt_regs *regs)
+{
+ if (IS_ENABLED(CONFIG_DEBUG_ENTRY)) {
+ /*
+ * Make sure that the entry code gave us a sensible EFLAGS
+ * register. Native because we want to check the actual CPU
+ * state, not the interrupt state as imagined by Xen.
+ */
+ unsigned long flags = native_save_fl();
+ unsigned long mask = X86_EFLAGS_DF | X86_EFLAGS_NT;
+
+ /*
+ * For !SMAP hardware we patch out CLAC on entry.
+ */
+ if (cpu_feature_enabled(X86_FEATURE_SMAP) ||
+ cpu_feature_enabled(X86_FEATURE_XENPV))
+ mask |= X86_EFLAGS_AC;
+
+ WARN_ON_ONCE(flags & mask);
+
+ /* We think we came from user mode. Make sure pt_regs agrees. */
+ WARN_ON_ONCE(!user_mode(regs));
+
+ /*
+ * All entries from user mode (except #DF) should be on the
+ * normal thread stack and should have user pt_regs in the
+ * correct location.
+ */
+ WARN_ON_ONCE(!on_thread_stack());
+ WARN_ON_ONCE(regs != task_pt_regs(current));
+ }
+}
+#define arch_enter_from_user_mode arch_enter_from_user_mode
+
+static inline void arch_exit_to_user_mode_prepare(struct pt_regs *regs,
+ unsigned long ti_work)
+{
+ if (ti_work & _TIF_USER_RETURN_NOTIFY)
+ fire_user_return_notifiers();
+
+ if (unlikely(ti_work & _TIF_IO_BITMAP))
+ tss_update_io_bitmap();
+
+ fpregs_assert_state_consistent();
+ if (unlikely(ti_work & _TIF_NEED_FPU_LOAD))
+ switch_fpu_return();
+
+#ifdef CONFIG_COMPAT
+ /*
+ * Compat syscalls set TS_COMPAT. Make sure we clear it before
+ * returning to user mode. We need to clear it *after* signal
+ * handling, because syscall restart has a fixup for compat
+ * syscalls. The fixup is exercised by the ptrace_syscall_32
+ * selftest.
+ *
+ * We also need to clear TS_REGS_POKED_I386: the 32-bit tracer
+ * special case only applies after poking regs and before the
+ * very next return to user mode.
+ */
+ current_thread_info()->status &= ~(TS_COMPAT | TS_I386_REGS_POKED);
+#endif
+
+ /*
+ * Ultimately, this value will get limited by KSTACK_OFFSET_MAX(),
+ * but not enough for x86 stack utilization comfort. To keep
+ * reasonable stack head room, reduce the maximum offset to 8 bits.
+ *
+ * The actual entropy will be further reduced by the compiler when
+ * applying stack alignment constraints (see cc_stack_align4/8 in
+ * arch/x86/Makefile), which will remove the 3 (x86_64) or 2 (ia32)
+ * low bits from any entropy chosen here.
+ *
+ * Therefore, final stack offset entropy will be 5 (x86_64) or
+ * 6 (ia32) bits.
+ */
+ choose_random_kstack_offset(rdtsc() & 0xFF);
+}
+#define arch_exit_to_user_mode_prepare arch_exit_to_user_mode_prepare
+
+static __always_inline void arch_exit_to_user_mode(void)
+{
+ mds_user_clear_cpu_buffers();
+}
+#define arch_exit_to_user_mode arch_exit_to_user_mode
+
+#endif
diff --git a/arch/x86/include/asm/entry_arch.h b/arch/x86/include/asm/entry_arch.h
deleted file mode 100644
index 1cd6d26a0a8d..000000000000
--- a/arch/x86/include/asm/entry_arch.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * This file is designed to contain the BUILD_INTERRUPT specifications for
- * all of the extra named interrupt vectors used by the architecture.
- * Usually this is the Inter Process Interrupts (IPIs)
- */
-
-/*
- * The following vectors are part of the Linux architecture, there
- * is no hardware IRQ pin equivalent for them, they are triggered
- * through the ICC by us (IPIs)
- */
-#ifdef CONFIG_SMP
-BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
-BUILD_INTERRUPT(call_function_interrupt,CALL_FUNCTION_VECTOR)
-BUILD_INTERRUPT(call_function_single_interrupt,CALL_FUNCTION_SINGLE_VECTOR)
-BUILD_INTERRUPT(irq_move_cleanup_interrupt,IRQ_MOVE_CLEANUP_VECTOR)
-BUILD_INTERRUPT(reboot_interrupt,REBOOT_VECTOR)
-
-.irp idx,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15, \
- 16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31
-.if NUM_INVALIDATE_TLB_VECTORS > \idx
-BUILD_INTERRUPT3(invalidate_interrupt\idx,
- (INVALIDATE_TLB_VECTOR_START)+\idx,
- smp_invalidate_interrupt)
-.endif
-.endr
-#endif
-
-BUILD_INTERRUPT(x86_platform_ipi, X86_PLATFORM_IPI_VECTOR)
-
-/*
- * every pentium local APIC has two 'local interrupts', with a
- * soft-definable vector attached to both interrupts, one of
- * which is a timer interrupt, the other one is error counter
- * overflow. Linux uses the local APIC timer interrupt to get
- * a much simpler SMP time architecture:
- */
-#ifdef CONFIG_X86_LOCAL_APIC
-
-BUILD_INTERRUPT(apic_timer_interrupt,LOCAL_TIMER_VECTOR)
-BUILD_INTERRUPT(error_interrupt,ERROR_APIC_VECTOR)
-BUILD_INTERRUPT(spurious_interrupt,SPURIOUS_APIC_VECTOR)
-
-#ifdef CONFIG_IRQ_WORK
-BUILD_INTERRUPT(irq_work_interrupt, IRQ_WORK_VECTOR)
-#endif
-
-#ifdef CONFIG_X86_THERMAL_VECTOR
-BUILD_INTERRUPT(thermal_interrupt,THERMAL_APIC_VECTOR)
-#endif
-
-#ifdef CONFIG_X86_MCE_THRESHOLD
-BUILD_INTERRUPT(threshold_interrupt,THRESHOLD_APIC_VECTOR)
-#endif
-
-#ifdef CONFIG_X86_MCE
-BUILD_INTERRUPT(mce_self_interrupt,MCE_SELF_VECTOR)
-#endif
-
-#endif
diff --git a/arch/x86/include/asm/errno.h b/arch/x86/include/asm/errno.h
deleted file mode 100644
index 4c82b503d92f..000000000000
--- a/arch/x86/include/asm/errno.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/errno.h>
diff --git a/arch/x86/include/asm/espfix.h b/arch/x86/include/asm/espfix.h
new file mode 100644
index 000000000000..6777480d8a42
--- /dev/null
+++ b/arch/x86/include/asm/espfix.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_ESPFIX_H
+#define _ASM_X86_ESPFIX_H
+
+#ifdef CONFIG_X86_ESPFIX64
+
+#include <asm/percpu.h>
+
+DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_stack);
+DECLARE_PER_CPU_READ_MOSTLY(unsigned long, espfix_waddr);
+
+extern void init_espfix_bsp(void);
+extern void init_espfix_ap(int cpu);
+#else
+static inline void init_espfix_ap(int cpu) { }
+#endif
+
+#endif /* _ASM_X86_ESPFIX_H */
diff --git a/arch/x86/include/asm/exec.h b/arch/x86/include/asm/exec.h
new file mode 100644
index 000000000000..54c2e1db274a
--- /dev/null
+++ b/arch/x86/include/asm/exec.h
@@ -0,0 +1 @@
+/* define arch_align_stack() here */
diff --git a/arch/x86/include/asm/extable.h b/arch/x86/include/asm/extable.h
new file mode 100644
index 000000000000..eeed395c3177
--- /dev/null
+++ b/arch/x86/include/asm/extable.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_EXTABLE_H
+#define _ASM_X86_EXTABLE_H
+
+#include <asm/extable_fixup_types.h>
+
+/*
+ * The exception table consists of two addresses relative to the
+ * exception table entry itself and a type selector field.
+ *
+ * The first address is of an instruction that is allowed to fault, the
+ * second is the target at which the program should continue.
+ *
+ * The type entry is used by fixup_exception() to select the handler to
+ * deal with the fault caused by the instruction in the first field.
+ *
+ * All the routines below use bits of fixup code that are out of line
+ * with the main instruction path. This means when everything is well,
+ * we don't even have to jump over them. Further, they do not intrude
+ * on our cache or tlb entries.
+ */
+
+struct exception_table_entry {
+ int insn, fixup, data;
+};
+struct pt_regs;
+
+#define ARCH_HAS_RELATIVE_EXTABLE
+
+#define swap_ex_entry_fixup(a, b, tmp, delta) \
+ do { \
+ (a)->fixup = (b)->fixup + (delta); \
+ (b)->fixup = (tmp).fixup - (delta); \
+ (a)->data = (b)->data; \
+ (b)->data = (tmp).data; \
+ } while (0)
+
+extern int fixup_exception(struct pt_regs *regs, int trapnr,
+ unsigned long error_code, unsigned long fault_addr);
+extern int fixup_bug(struct pt_regs *regs, int trapnr);
+extern int ex_get_fixup_type(unsigned long ip);
+extern void early_fixup_exception(struct pt_regs *regs, int trapnr);
+
+#ifdef CONFIG_X86_MCE
+extern void __noreturn ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr);
+#else
+static inline void __noreturn ex_handler_msr_mce(struct pt_regs *regs, bool wrmsr)
+{
+ for (;;)
+ cpu_relax();
+}
+#endif
+
+#if defined(CONFIG_BPF_JIT) && defined(CONFIG_X86_64)
+bool ex_handler_bpf(const struct exception_table_entry *x, struct pt_regs *regs);
+#else
+static inline bool ex_handler_bpf(const struct exception_table_entry *x,
+ struct pt_regs *regs) { return false; }
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/extable_fixup_types.h b/arch/x86/include/asm/extable_fixup_types.h
new file mode 100644
index 000000000000..991e31cfde94
--- /dev/null
+++ b/arch/x86/include/asm/extable_fixup_types.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_EXTABLE_FIXUP_TYPES_H
+#define _ASM_X86_EXTABLE_FIXUP_TYPES_H
+
+/*
+ * Our IMM is signed, as such it must live at the top end of the word. Also,
+ * since C99 hex constants are of ambigious type, force cast the mask to 'int'
+ * so that FIELD_GET() will DTRT and sign extend the value when it extracts it.
+ */
+#define EX_DATA_TYPE_MASK ((int)0x000000FF)
+#define EX_DATA_REG_MASK ((int)0x00000F00)
+#define EX_DATA_FLAG_MASK ((int)0x0000F000)
+#define EX_DATA_IMM_MASK ((int)0xFFFF0000)
+
+#define EX_DATA_REG_SHIFT 8
+#define EX_DATA_FLAG_SHIFT 12
+#define EX_DATA_IMM_SHIFT 16
+
+#define EX_DATA_REG(reg) ((reg) << EX_DATA_REG_SHIFT)
+#define EX_DATA_FLAG(flag) ((flag) << EX_DATA_FLAG_SHIFT)
+#define EX_DATA_IMM(imm) ((imm) << EX_DATA_IMM_SHIFT)
+
+/* segment regs */
+#define EX_REG_DS EX_DATA_REG(8)
+#define EX_REG_ES EX_DATA_REG(9)
+#define EX_REG_FS EX_DATA_REG(10)
+#define EX_REG_GS EX_DATA_REG(11)
+
+/* flags */
+#define EX_FLAG_CLEAR_AX EX_DATA_FLAG(1)
+#define EX_FLAG_CLEAR_DX EX_DATA_FLAG(2)
+#define EX_FLAG_CLEAR_AX_DX EX_DATA_FLAG(3)
+
+/* types */
+#define EX_TYPE_NONE 0
+#define EX_TYPE_DEFAULT 1
+#define EX_TYPE_FAULT 2
+#define EX_TYPE_UACCESS 3
+#define EX_TYPE_COPY 4
+#define EX_TYPE_CLEAR_FS 5
+#define EX_TYPE_FPU_RESTORE 6
+#define EX_TYPE_BPF 7
+#define EX_TYPE_WRMSR 8
+#define EX_TYPE_RDMSR 9
+#define EX_TYPE_WRMSR_SAFE 10 /* reg := -EIO */
+#define EX_TYPE_RDMSR_SAFE 11 /* reg := -EIO */
+#define EX_TYPE_WRMSR_IN_MCE 12
+#define EX_TYPE_RDMSR_IN_MCE 13
+#define EX_TYPE_DEFAULT_MCE_SAFE 14
+#define EX_TYPE_FAULT_MCE_SAFE 15
+
+#define EX_TYPE_POP_REG 16 /* sp += sizeof(long) */
+#define EX_TYPE_POP_ZERO (EX_TYPE_POP_REG | EX_DATA_IMM(0))
+
+#define EX_TYPE_IMM_REG 17 /* reg := (long)imm */
+#define EX_TYPE_EFAULT_REG (EX_TYPE_IMM_REG | EX_DATA_IMM(-EFAULT))
+#define EX_TYPE_ZERO_REG (EX_TYPE_IMM_REG | EX_DATA_IMM(0))
+#define EX_TYPE_ONE_REG (EX_TYPE_IMM_REG | EX_DATA_IMM(1))
+
+#define EX_TYPE_FAULT_SGX 18
+
+#define EX_TYPE_UCOPY_LEN 19 /* cx := reg + imm*cx */
+#define EX_TYPE_UCOPY_LEN1 (EX_TYPE_UCOPY_LEN | EX_DATA_IMM(1))
+#define EX_TYPE_UCOPY_LEN4 (EX_TYPE_UCOPY_LEN | EX_DATA_IMM(4))
+#define EX_TYPE_UCOPY_LEN8 (EX_TYPE_UCOPY_LEN | EX_DATA_IMM(8))
+
+#define EX_TYPE_ZEROPAD 20 /* longword load with zeropad on fault */
+
+#endif
diff --git a/arch/x86/include/asm/fb.h b/arch/x86/include/asm/fb.h
index 2519d0679d99..ab4c960146e3 100644
--- a/arch/x86/include/asm/fb.h
+++ b/arch/x86/include/asm/fb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_FB_H
#define _ASM_X86_FB_H
@@ -8,8 +9,12 @@
static inline void fb_pgprotect(struct file *file, struct vm_area_struct *vma,
unsigned long off)
{
+ unsigned long prot;
+
+ prot = pgprot_val(vma->vm_page_prot) & ~_PAGE_CACHE_MASK;
if (boot_cpu_data.x86 > 3)
- pgprot_val(vma->vm_page_prot) |= _PAGE_PCD;
+ pgprot_val(vma->vm_page_prot) =
+ prot | cachemode2protval(_PAGE_CACHE_MODE_UC_MINUS);
}
extern int fb_is_primary_device(struct fb_info *info);
diff --git a/arch/x86/include/asm/fcntl.h b/arch/x86/include/asm/fcntl.h
deleted file mode 100644
index 46ab12db5739..000000000000
--- a/arch/x86/include/asm/fcntl.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/fcntl.h>
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index 4729b2b63117..d0dcefb5cc59 100644
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h
@@ -14,16 +14,32 @@
#ifndef _ASM_X86_FIXMAP_H
#define _ASM_X86_FIXMAP_H
+#include <asm/kmap_size.h>
+
+/*
+ * Exposed to assembly code for setting up initial page tables. Cannot be
+ * calculated in assembly code (fixmap entries are an enum), but is sanity
+ * checked in the actual fixmap C code to make sure that the fixmap is
+ * covered fully.
+ */
+#ifndef CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP
+# define FIXMAP_PMD_NUM 2
+#else
+# define KM_PMDS (KM_MAX_IDX * ((CONFIG_NR_CPUS + 511) / 512))
+# define FIXMAP_PMD_NUM (KM_PMDS + 2)
+#endif
+/* fixmap starts downwards from the 507th entry in level2_fixmap_pgt */
+#define FIXMAP_PMD_TOP 507
+
#ifndef __ASSEMBLY__
#include <linux/kernel.h>
-#include <asm/acpi.h>
#include <asm/apicdef.h>
#include <asm/page.h>
+#include <asm/pgtable_types.h>
#ifdef CONFIG_X86_32
#include <linux/threads.h>
-#include <asm/kmap_types.h>
#else
-#include <asm/vsyscall.h>
+#include <uapi/asm/vsyscall.h>
#endif
/*
@@ -32,25 +48,17 @@
* Because of this, FIXADDR_TOP x86 integration was left as later work.
*/
#ifdef CONFIG_X86_32
-/* used by vmalloc.c, vsyscall.lds.S.
- *
+/*
* Leave one empty page between vmalloc'ed areas and
* the start of the fixmap.
*/
extern unsigned long __FIXADDR_TOP;
#define FIXADDR_TOP ((unsigned long)__FIXADDR_TOP)
-
-#define FIXADDR_USER_START __fix_to_virt(FIX_VDSO)
-#define FIXADDR_USER_END __fix_to_virt(FIX_VDSO - 1)
#else
-#define FIXADDR_TOP (VSYSCALL_END-PAGE_SIZE)
-
-/* Only covers 32bit vsyscalls currently. Need another set for 64bit. */
-#define FIXADDR_USER_START ((unsigned long)VSYSCALL32_VSYSCALL)
-#define FIXADDR_USER_END (FIXADDR_USER_START + PAGE_SIZE)
+#define FIXADDR_TOP (round_up(VSYSCALL_ADDR + PAGE_SIZE, 1<<PMD_SHIFT) - \
+ PAGE_SIZE)
#endif
-
/*
* Here we define all the compile-time 'special' virtual
* addresses. The point is to have a constant address at
@@ -73,12 +81,10 @@ extern unsigned long __FIXADDR_TOP;
enum fixed_addresses {
#ifdef CONFIG_X86_32
FIX_HOLE,
- FIX_VDSO,
#else
- VSYSCALL_LAST_PAGE,
- VSYSCALL_FIRST_PAGE = VSYSCALL_LAST_PAGE
- + ((VSYSCALL_END-VSYSCALL_START) >> PAGE_SHIFT) - 1,
- VSYSCALL_HPET,
+#ifdef CONFIG_X86_VSYSCALL_EMULATION
+ VSYSCALL_PAGE = (FIXADDR_TOP - VSYSCALL_ADDR) >> PAGE_SHIFT,
+#endif
#endif
FIX_DBGP_BASE,
FIX_EARLYCON_MEM_BASE,
@@ -92,44 +98,34 @@ enum fixed_addresses {
FIX_IO_APIC_BASE_0,
FIX_IO_APIC_BASE_END = FIX_IO_APIC_BASE_0 + MAX_IO_APICS - 1,
#endif
-#ifdef CONFIG_X86_VISWS_APIC
- FIX_CO_CPU, /* Cobalt timer */
- FIX_CO_APIC, /* Cobalt APIC Redirection Table */
- FIX_LI_PCIA, /* Lithium PCI Bridge A */
- FIX_LI_PCIB, /* Lithium PCI Bridge B */
-#endif
-#ifdef CONFIG_X86_F00F_BUG
- FIX_F00F_IDT, /* Virtual mapping for IDT */
-#endif
-#ifdef CONFIG_X86_CYCLONE_TIMER
- FIX_CYCLONE_TIMER, /*cyclone timer register*/
-#endif
-#ifdef CONFIG_X86_32
+#ifdef CONFIG_KMAP_LOCAL
FIX_KMAP_BEGIN, /* reserved pte's for temporary kernel mappings */
- FIX_KMAP_END = FIX_KMAP_BEGIN+(KM_TYPE_NR*NR_CPUS)-1,
+ FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_MAX_IDX * NR_CPUS) - 1,
#ifdef CONFIG_PCI_MMCONFIG
FIX_PCIE_MCFG,
#endif
#endif
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_XXL
FIX_PARAVIRT_BOOTMAP,
#endif
- FIX_TEXT_POKE1, /* reserve 2 pages for text_poke() */
- FIX_TEXT_POKE0, /* first page is last, because allocation is backward */
-#ifdef CONFIG_X86_MRST
- FIX_LNW_VRTC,
+
+#ifdef CONFIG_ACPI_APEI_GHES
+ /* Used for GHES mapping from assorted contexts */
+ FIX_APEI_GHES_IRQ,
+ FIX_APEI_GHES_NMI,
#endif
+
__end_of_permanent_fixed_addresses,
/*
- * 256 temporary boot-time mappings, used by early_ioremap(),
+ * 512 temporary boot-time mappings, used by early_ioremap(),
* before ioremap() is functional.
*
- * If necessary we round it up to the next 256 pages boundary so
- * that we can have a single pgd entry and a single pte table:
+ * If necessary we round it up to the next 512 pages boundary so
+ * that we can have a single pmd entry and a single pte table:
*/
#define NR_FIX_BTMAPS 64
-#define FIX_BTMAPS_SLOTS 4
+#define FIX_BTMAPS_SLOTS 8
#define TOTAL_FIX_BTMAPS (NR_FIX_BTMAPS * FIX_BTMAPS_SLOTS)
FIX_BTMAP_END =
(__end_of_permanent_fixed_addresses ^
@@ -151,22 +147,20 @@ enum fixed_addresses {
extern void reserve_top_address(unsigned long reserve);
-#define FIXADDR_SIZE (__end_of_permanent_fixed_addresses << PAGE_SHIFT)
-#define FIXADDR_BOOT_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
+#define FIXADDR_SIZE (__end_of_permanent_fixed_addresses << PAGE_SHIFT)
#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
-#define FIXADDR_BOOT_START (FIXADDR_TOP - FIXADDR_BOOT_SIZE)
+#define FIXADDR_TOT_SIZE (__end_of_fixed_addresses << PAGE_SHIFT)
+#define FIXADDR_TOT_START (FIXADDR_TOP - FIXADDR_TOT_SIZE)
extern int fixmaps_set;
-extern pte_t *kmap_pte;
-extern pgprot_t kmap_prot;
extern pte_t *pkmap_page_table;
void __native_set_fixmap(enum fixed_addresses idx, pte_t pte);
-void native_set_fixmap(enum fixed_addresses idx,
+void native_set_fixmap(unsigned /* enum fixed_addresses */ idx,
phys_addr_t phys, pgprot_t flags);
-#ifndef CONFIG_PARAVIRT
+#ifndef CONFIG_PARAVIRT_XXL
static inline void __set_fixmap(enum fixed_addresses idx,
phys_addr_t phys, pgprot_t flags)
{
@@ -174,64 +168,33 @@ static inline void __set_fixmap(enum fixed_addresses idx,
}
#endif
-#define set_fixmap(idx, phys) \
- __set_fixmap(idx, phys, PAGE_KERNEL)
-
/*
- * Some hardware wants to get fixmapped without caching.
+ * FIXMAP_PAGE_NOCACHE is used for MMIO. Memory encryption is not
+ * supported for MMIO addresses, so make sure that the memory encryption
+ * mask is not part of the page attributes.
*/
-#define set_fixmap_nocache(idx, phys) \
- __set_fixmap(idx, phys, PAGE_KERNEL_NOCACHE)
-
-#define clear_fixmap(idx) \
- __set_fixmap(idx, 0, __pgprot(0))
-
-#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
-#define __virt_to_fix(x) ((FIXADDR_TOP - ((x)&PAGE_MASK)) >> PAGE_SHIFT)
-
-extern void __this_fixmap_does_not_exist(void);
+#define FIXMAP_PAGE_NOCACHE PAGE_KERNEL_IO_NOCACHE
/*
- * 'index to address' translation. If anyone tries to use the idx
- * directly without translation, we catch the bug with a NULL-deference
- * kernel oops. Illegal ranges of incoming indices are caught too.
+ * Early memremap routines used for in-place encryption. The mappings created
+ * by these routines are intended to be used as temporary mappings.
*/
-static __always_inline unsigned long fix_to_virt(const unsigned int idx)
-{
- /*
- * this branch gets completely eliminated after inlining,
- * except when someone tries to use fixaddr indices in an
- * illegal way. (such as mixing up address types or using
- * out-of-range indices).
- *
- * If it doesn't get removed, the linker will complain
- * loudly with a reasonably clear error message..
- */
- if (idx >= __end_of_fixed_addresses)
- __this_fixmap_does_not_exist();
-
- return __fix_to_virt(idx);
-}
-
-static inline unsigned long virt_to_fix(const unsigned long vaddr)
-{
- BUG_ON(vaddr >= FIXADDR_TOP || vaddr < FIXADDR_START);
- return __virt_to_fix(vaddr);
-}
-
-/* Return an pointer with offset calculated */
-static __always_inline unsigned long
-__set_fixmap_offset(enum fixed_addresses idx, phys_addr_t phys, pgprot_t flags)
-{
- __set_fixmap(idx, phys, flags);
- return fix_to_virt(idx) + (phys & (PAGE_SIZE - 1));
-}
-
-#define set_fixmap_offset(idx, phys) \
- __set_fixmap_offset(idx, phys, PAGE_KERNEL)
-
-#define set_fixmap_offset_nocache(idx, phys) \
- __set_fixmap_offset(idx, phys, PAGE_KERNEL_NOCACHE)
+void __init *early_memremap_encrypted(resource_size_t phys_addr,
+ unsigned long size);
+void __init *early_memremap_encrypted_wp(resource_size_t phys_addr,
+ unsigned long size);
+void __init *early_memremap_decrypted(resource_size_t phys_addr,
+ unsigned long size);
+void __init *early_memremap_decrypted_wp(resource_size_t phys_addr,
+ unsigned long size);
+
+#include <asm-generic/fixmap.h>
+
+#define __late_set_fixmap(idx, phys, flags) __set_fixmap(idx, phys, flags)
+#define __late_clear_fixmap(idx) __set_fixmap(idx, 0, __pgprot(0))
+
+void __early_set_fixmap(enum fixed_addresses idx,
+ phys_addr_t phys, pgprot_t flags);
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_FIXMAP_H */
diff --git a/arch/x86/include/asm/floppy.h b/arch/x86/include/asm/floppy.h
index dbe82a5c5eac..6ec3fc969ad5 100644
--- a/arch/x86/include/asm/floppy.h
+++ b/arch/x86/include/asm/floppy.h
@@ -31,8 +31,8 @@
#define CSW fd_routine[can_use_virtual_dma & 1]
-#define fd_inb(port) inb_p(port)
-#define fd_outb(value, port) outb_p(value, port)
+#define fd_inb(base, reg) inb_p((base) + (reg))
+#define fd_outb(value, base, reg) outb_p(value, (base) + (reg))
#define fd_request_dma() CSW._request_dma(FLOPPY_DMA, "floppy")
#define fd_free_dma() CSW._free_dma(FLOPPY_DMA)
@@ -74,32 +74,32 @@ static irqreturn_t floppy_hardint(int irq, void *dev_id)
int lcount;
char *lptr;
- st = 1;
for (lcount = virtual_dma_count, lptr = virtual_dma_addr;
lcount; lcount--, lptr++) {
- st = inb(virtual_dma_port + 4) & 0xa0;
- if (st != 0xa0)
+ st = inb(virtual_dma_port + FD_STATUS);
+ st &= STATUS_DMA | STATUS_READY;
+ if (st != (STATUS_DMA | STATUS_READY))
break;
if (virtual_dma_mode)
- outb_p(*lptr, virtual_dma_port + 5);
+ outb_p(*lptr, virtual_dma_port + FD_DATA);
else
- *lptr = inb_p(virtual_dma_port + 5);
+ *lptr = inb_p(virtual_dma_port + FD_DATA);
}
virtual_dma_count = lcount;
virtual_dma_addr = lptr;
- st = inb(virtual_dma_port + 4);
+ st = inb(virtual_dma_port + FD_STATUS);
}
#ifdef TRACE_FLPY_INT
calls++;
#endif
- if (st == 0x20)
+ if (st == STATUS_DMA)
return IRQ_HANDLED;
- if (!(st & 0x20)) {
+ if (!(st & STATUS_DMA)) {
virtual_dma_residue += virtual_dma_count;
virtual_dma_count = 0;
#ifdef TRACE_FLPY_INT
- printk("count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n",
+ printk(KERN_DEBUG "count=%x, residue=%x calls=%d bytes=%d dma_wait=%d\n",
virtual_dma_count, virtual_dma_residue, calls, bytes,
dma_wait);
calls = 0;
@@ -145,10 +145,10 @@ static int fd_request_irq(void)
{
if (can_use_virtual_dma)
return request_irq(FLOPPY_IRQ, floppy_hardint,
- IRQF_DISABLED, "floppy", NULL);
+ 0, "floppy", NULL);
else
return request_irq(FLOPPY_IRQ, floppy_interrupt,
- IRQF_DISABLED, "floppy", NULL);
+ 0, "floppy", NULL);
}
static unsigned long dma_mem_alloc(unsigned long size)
@@ -229,18 +229,18 @@ static struct fd_routine_l {
int (*_dma_setup)(char *addr, unsigned long size, int mode, int io);
} fd_routine[] = {
{
- request_dma,
- free_dma,
- get_dma_residue,
- dma_mem_alloc,
- hard_dma_setup
+ ._request_dma = request_dma,
+ ._free_dma = free_dma,
+ ._get_dma_residue = get_dma_residue,
+ ._dma_mem_alloc = dma_mem_alloc,
+ ._dma_setup = hard_dma_setup
},
{
- vdma_request_dma,
- vdma_nop,
- vdma_get_dma_residue,
- vdma_mem_alloc,
- vdma_dma_setup
+ ._request_dma = vdma_request_dma,
+ ._free_dma = vdma_nop,
+ ._get_dma_residue = vdma_get_dma_residue,
+ ._dma_mem_alloc = vdma_mem_alloc,
+ ._dma_setup = vdma_dma_setup
}
};
diff --git a/arch/x86/include/asm/fpu/api.h b/arch/x86/include/asm/fpu/api.h
new file mode 100644
index 000000000000..503a577814b2
--- /dev/null
+++ b/arch/x86/include/asm/fpu/api.h
@@ -0,0 +1,169 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (C) 1994 Linus Torvalds
+ *
+ * Pentium III FXSR, SSE support
+ * General FPU state handling cleanups
+ * Gareth Hughes <gareth@valinux.com>, May 2000
+ * x86-64 work by Andi Kleen 2002
+ */
+
+#ifndef _ASM_X86_FPU_API_H
+#define _ASM_X86_FPU_API_H
+#include <linux/bottom_half.h>
+
+#include <asm/fpu/types.h>
+
+/*
+ * Use kernel_fpu_begin/end() if you intend to use FPU in kernel context. It
+ * disables preemption so be careful if you intend to use it for long periods
+ * of time.
+ * If you intend to use the FPU in irq/softirq you need to check first with
+ * irq_fpu_usable() if it is possible.
+ */
+
+/* Kernel FPU states to initialize in kernel_fpu_begin_mask() */
+#define KFPU_387 _BITUL(0) /* 387 state will be initialized */
+#define KFPU_MXCSR _BITUL(1) /* MXCSR will be initialized */
+
+extern void kernel_fpu_begin_mask(unsigned int kfpu_mask);
+extern void kernel_fpu_end(void);
+extern bool irq_fpu_usable(void);
+extern void fpregs_mark_activate(void);
+
+/* Code that is unaware of kernel_fpu_begin_mask() can use this */
+static inline void kernel_fpu_begin(void)
+{
+#ifdef CONFIG_X86_64
+ /*
+ * Any 64-bit code that uses 387 instructions must explicitly request
+ * KFPU_387.
+ */
+ kernel_fpu_begin_mask(KFPU_MXCSR);
+#else
+ /*
+ * 32-bit kernel code may use 387 operations as well as SSE2, etc,
+ * as long as it checks that the CPU has the required capability.
+ */
+ kernel_fpu_begin_mask(KFPU_387 | KFPU_MXCSR);
+#endif
+}
+
+/*
+ * Use fpregs_lock() while editing CPU's FPU registers or fpu->fpstate.
+ * A context switch will (and softirq might) save CPU's FPU registers to
+ * fpu->fpstate.regs and set TIF_NEED_FPU_LOAD leaving CPU's FPU registers in
+ * a random state.
+ *
+ * local_bh_disable() protects against both preemption and soft interrupts
+ * on !RT kernels.
+ *
+ * On RT kernels local_bh_disable() is not sufficient because it only
+ * serializes soft interrupt related sections via a local lock, but stays
+ * preemptible. Disabling preemption is the right choice here as bottom
+ * half processing is always in thread context on RT kernels so it
+ * implicitly prevents bottom half processing as well.
+ *
+ * Disabling preemption also serializes against kernel_fpu_begin().
+ */
+static inline void fpregs_lock(void)
+{
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+ local_bh_disable();
+ else
+ preempt_disable();
+}
+
+static inline void fpregs_unlock(void)
+{
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT))
+ local_bh_enable();
+ else
+ preempt_enable();
+}
+
+#ifdef CONFIG_X86_DEBUG_FPU
+extern void fpregs_assert_state_consistent(void);
+#else
+static inline void fpregs_assert_state_consistent(void) { }
+#endif
+
+/*
+ * Load the task FPU state before returning to userspace.
+ */
+extern void switch_fpu_return(void);
+
+/*
+ * Query the presence of one or more xfeatures. Works on any legacy CPU as well.
+ *
+ * If 'feature_name' is set then put a human-readable description of
+ * the feature there as well - this can be used to print error (or success)
+ * messages.
+ */
+extern int cpu_has_xfeatures(u64 xfeatures_mask, const char **feature_name);
+
+/* Trap handling */
+extern int fpu__exception_code(struct fpu *fpu, int trap_nr);
+extern void fpu_sync_fpstate(struct fpu *fpu);
+extern void fpu_reset_from_exception_fixup(void);
+
+/* Boot, hotplug and resume */
+extern void fpu__init_cpu(void);
+extern void fpu__init_system(struct cpuinfo_x86 *c);
+extern void fpu__init_check_bugs(void);
+extern void fpu__resume_cpu(void);
+
+#ifdef CONFIG_MATH_EMULATION
+extern void fpstate_init_soft(struct swregs_state *soft);
+#else
+static inline void fpstate_init_soft(struct swregs_state *soft) {}
+#endif
+
+/* State tracking */
+DECLARE_PER_CPU(struct fpu *, fpu_fpregs_owner_ctx);
+
+/* Process cleanup */
+#ifdef CONFIG_X86_64
+extern void fpstate_free(struct fpu *fpu);
+#else
+static inline void fpstate_free(struct fpu *fpu) { }
+#endif
+
+/* fpstate-related functions which are exported to KVM */
+extern void fpstate_clear_xstate_component(struct fpstate *fps, unsigned int xfeature);
+
+extern u64 xstate_get_guest_group_perm(void);
+
+/* KVM specific functions */
+extern bool fpu_alloc_guest_fpstate(struct fpu_guest *gfpu);
+extern void fpu_free_guest_fpstate(struct fpu_guest *gfpu);
+extern int fpu_swap_kvm_fpstate(struct fpu_guest *gfpu, bool enter_guest);
+extern int fpu_enable_guest_xfd_features(struct fpu_guest *guest_fpu, u64 xfeatures);
+
+#ifdef CONFIG_X86_64
+extern void fpu_update_guest_xfd(struct fpu_guest *guest_fpu, u64 xfd);
+extern void fpu_sync_guest_vmexit_xfd_state(void);
+#else
+static inline void fpu_update_guest_xfd(struct fpu_guest *guest_fpu, u64 xfd) { }
+static inline void fpu_sync_guest_vmexit_xfd_state(void) { }
+#endif
+
+extern void fpu_copy_guest_fpstate_to_uabi(struct fpu_guest *gfpu, void *buf, unsigned int size, u32 pkru);
+extern int fpu_copy_uabi_to_guest_fpstate(struct fpu_guest *gfpu, const void *buf, u64 xcr0, u32 *vpkru);
+
+static inline void fpstate_set_confidential(struct fpu_guest *gfpu)
+{
+ gfpu->fpstate->is_confidential = true;
+}
+
+static inline bool fpstate_is_confidential(struct fpu_guest *gfpu)
+{
+ return gfpu->fpstate->is_confidential;
+}
+
+/* prctl */
+extern long fpu_xstate_prctl(int option, unsigned long arg2);
+
+extern void fpu_idle_fpregs(void);
+
+#endif /* _ASM_X86_FPU_API_H */
diff --git a/arch/x86/include/asm/fpu/regset.h b/arch/x86/include/asm/fpu/regset.h
new file mode 100644
index 000000000000..4f928d6a367b
--- /dev/null
+++ b/arch/x86/include/asm/fpu/regset.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * FPU regset handling methods:
+ */
+#ifndef _ASM_X86_FPU_REGSET_H
+#define _ASM_X86_FPU_REGSET_H
+
+#include <linux/regset.h>
+
+extern user_regset_active_fn regset_fpregs_active, regset_xregset_fpregs_active;
+extern user_regset_get2_fn fpregs_get, xfpregs_get, fpregs_soft_get,
+ xstateregs_get;
+extern user_regset_set_fn fpregs_set, xfpregs_set, fpregs_soft_set,
+ xstateregs_set;
+
+/*
+ * xstateregs_active == regset_fpregs_active. Please refer to the comment
+ * at the definition of regset_fpregs_active.
+ */
+#define xstateregs_active regset_fpregs_active
+
+#endif /* _ASM_X86_FPU_REGSET_H */
diff --git a/arch/x86/include/asm/fpu/sched.h b/arch/x86/include/asm/fpu/sched.h
new file mode 100644
index 000000000000..c2d6cd78ed0c
--- /dev/null
+++ b/arch/x86/include/asm/fpu/sched.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_FPU_SCHED_H
+#define _ASM_X86_FPU_SCHED_H
+
+#include <linux/sched.h>
+
+#include <asm/cpufeature.h>
+#include <asm/fpu/types.h>
+
+#include <asm/trace/fpu.h>
+
+extern void save_fpregs_to_fpstate(struct fpu *fpu);
+extern void fpu__drop(struct fpu *fpu);
+extern int fpu_clone(struct task_struct *dst, unsigned long clone_flags, bool minimal);
+extern void fpu_flush_thread(void);
+
+/*
+ * FPU state switching for scheduling.
+ *
+ * This is a two-stage process:
+ *
+ * - switch_fpu_prepare() saves the old state.
+ * This is done within the context of the old process.
+ *
+ * - switch_fpu_finish() sets TIF_NEED_FPU_LOAD; the floating point state
+ * will get loaded on return to userspace, or when the kernel needs it.
+ *
+ * If TIF_NEED_FPU_LOAD is cleared then the CPU's FPU registers
+ * are saved in the current thread's FPU register state.
+ *
+ * If TIF_NEED_FPU_LOAD is set then CPU's FPU registers may not
+ * hold current()'s FPU registers. It is required to load the
+ * registers before returning to userland or using the content
+ * otherwise.
+ *
+ * The FPU context is only stored/restored for a user task and
+ * PF_KTHREAD is used to distinguish between kernel and user threads.
+ */
+static inline void switch_fpu_prepare(struct fpu *old_fpu, int cpu)
+{
+ if (cpu_feature_enabled(X86_FEATURE_FPU) &&
+ !(current->flags & (PF_KTHREAD | PF_IO_WORKER))) {
+ save_fpregs_to_fpstate(old_fpu);
+ /*
+ * The save operation preserved register state, so the
+ * fpu_fpregs_owner_ctx is still @old_fpu. Store the
+ * current CPU number in @old_fpu, so the next return
+ * to user space can avoid the FPU register restore
+ * when is returns on the same CPU and still owns the
+ * context.
+ */
+ old_fpu->last_cpu = cpu;
+
+ trace_x86_fpu_regs_deactivated(old_fpu);
+ }
+}
+
+/*
+ * Delay loading of the complete FPU state until the return to userland.
+ * PKRU is handled separately.
+ */
+static inline void switch_fpu_finish(void)
+{
+ if (cpu_feature_enabled(X86_FEATURE_FPU))
+ set_thread_flag(TIF_NEED_FPU_LOAD);
+}
+
+#endif /* _ASM_X86_FPU_SCHED_H */
diff --git a/arch/x86/include/asm/fpu/signal.h b/arch/x86/include/asm/fpu/signal.h
new file mode 100644
index 000000000000..611fa41711af
--- /dev/null
+++ b/arch/x86/include/asm/fpu/signal.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * x86 FPU signal frame handling methods:
+ */
+#ifndef _ASM_X86_FPU_SIGNAL_H
+#define _ASM_X86_FPU_SIGNAL_H
+
+#include <linux/compat.h>
+#include <linux/user.h>
+
+#include <asm/fpu/types.h>
+
+#ifdef CONFIG_X86_64
+# include <uapi/asm/sigcontext.h>
+# include <asm/user32.h>
+#else
+# define user_i387_ia32_struct user_i387_struct
+# define user32_fxsr_struct user_fxsr_struct
+#endif
+
+extern void convert_from_fxsr(struct user_i387_ia32_struct *env,
+ struct task_struct *tsk);
+extern void convert_to_fxsr(struct fxregs_state *fxsave,
+ const struct user_i387_ia32_struct *env);
+
+unsigned long
+fpu__alloc_mathframe(unsigned long sp, int ia32_frame,
+ unsigned long *buf_fx, unsigned long *size);
+
+unsigned long fpu__get_fpstate_size(void);
+
+extern bool copy_fpstate_to_sigframe(void __user *buf, void __user *fp, int size);
+extern void fpu__clear_user_states(struct fpu *fpu);
+extern bool fpu__restore_sig(void __user *buf, int ia32_frame);
+
+extern void restore_fpregs_from_fpstate(struct fpstate *fpstate, u64 mask);
+#endif /* _ASM_X86_FPU_SIGNAL_H */
diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h
new file mode 100644
index 000000000000..7f6d858ff47a
--- /dev/null
+++ b/arch/x86/include/asm/fpu/types.h
@@ -0,0 +1,585 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * FPU data structures:
+ */
+#ifndef _ASM_X86_FPU_H
+#define _ASM_X86_FPU_H
+
+/*
+ * The legacy x87 FPU state format, as saved by FSAVE and
+ * restored by the FRSTOR instructions:
+ */
+struct fregs_state {
+ u32 cwd; /* FPU Control Word */
+ u32 swd; /* FPU Status Word */
+ u32 twd; /* FPU Tag Word */
+ u32 fip; /* FPU IP Offset */
+ u32 fcs; /* FPU IP Selector */
+ u32 foo; /* FPU Operand Pointer Offset */
+ u32 fos; /* FPU Operand Pointer Selector */
+
+ /* 8*10 bytes for each FP-reg = 80 bytes: */
+ u32 st_space[20];
+
+ /* Software status information [not touched by FSAVE]: */
+ u32 status;
+};
+
+/*
+ * The legacy fx SSE/MMX FPU state format, as saved by FXSAVE and
+ * restored by the FXRSTOR instructions. It's similar to the FSAVE
+ * format, but differs in some areas, plus has extensions at
+ * the end for the XMM registers.
+ */
+struct fxregs_state {
+ u16 cwd; /* Control Word */
+ u16 swd; /* Status Word */
+ u16 twd; /* Tag Word */
+ u16 fop; /* Last Instruction Opcode */
+ union {
+ struct {
+ u64 rip; /* Instruction Pointer */
+ u64 rdp; /* Data Pointer */
+ };
+ struct {
+ u32 fip; /* FPU IP Offset */
+ u32 fcs; /* FPU IP Selector */
+ u32 foo; /* FPU Operand Offset */
+ u32 fos; /* FPU Operand Selector */
+ };
+ };
+ u32 mxcsr; /* MXCSR Register State */
+ u32 mxcsr_mask; /* MXCSR Mask */
+
+ /* 8*16 bytes for each FP-reg = 128 bytes: */
+ u32 st_space[32];
+
+ /* 16*16 bytes for each XMM-reg = 256 bytes: */
+ u32 xmm_space[64];
+
+ u32 padding[12];
+
+ union {
+ u32 padding1[12];
+ u32 sw_reserved[12];
+ };
+
+} __attribute__((aligned(16)));
+
+/* Default value for fxregs_state.mxcsr: */
+#define MXCSR_DEFAULT 0x1f80
+
+/* Copy both mxcsr & mxcsr_flags with a single u64 memcpy: */
+#define MXCSR_AND_FLAGS_SIZE sizeof(u64)
+
+/*
+ * Software based FPU emulation state. This is arbitrary really,
+ * it matches the x87 format to make it easier to understand:
+ */
+struct swregs_state {
+ u32 cwd;
+ u32 swd;
+ u32 twd;
+ u32 fip;
+ u32 fcs;
+ u32 foo;
+ u32 fos;
+ /* 8*10 bytes for each FP-reg = 80 bytes: */
+ u32 st_space[20];
+ u8 ftop;
+ u8 changed;
+ u8 lookahead;
+ u8 no_update;
+ u8 rm;
+ u8 alimit;
+ struct math_emu_info *info;
+ u32 entry_eip;
+};
+
+/*
+ * List of XSAVE features Linux knows about:
+ */
+enum xfeature {
+ XFEATURE_FP,
+ XFEATURE_SSE,
+ /*
+ * Values above here are "legacy states".
+ * Those below are "extended states".
+ */
+ XFEATURE_YMM,
+ XFEATURE_BNDREGS,
+ XFEATURE_BNDCSR,
+ XFEATURE_OPMASK,
+ XFEATURE_ZMM_Hi256,
+ XFEATURE_Hi16_ZMM,
+ XFEATURE_PT_UNIMPLEMENTED_SO_FAR,
+ XFEATURE_PKRU,
+ XFEATURE_PASID,
+ XFEATURE_RSRVD_COMP_11,
+ XFEATURE_RSRVD_COMP_12,
+ XFEATURE_RSRVD_COMP_13,
+ XFEATURE_RSRVD_COMP_14,
+ XFEATURE_LBR,
+ XFEATURE_RSRVD_COMP_16,
+ XFEATURE_XTILE_CFG,
+ XFEATURE_XTILE_DATA,
+
+ XFEATURE_MAX,
+};
+
+#define XFEATURE_MASK_FP (1 << XFEATURE_FP)
+#define XFEATURE_MASK_SSE (1 << XFEATURE_SSE)
+#define XFEATURE_MASK_YMM (1 << XFEATURE_YMM)
+#define XFEATURE_MASK_BNDREGS (1 << XFEATURE_BNDREGS)
+#define XFEATURE_MASK_BNDCSR (1 << XFEATURE_BNDCSR)
+#define XFEATURE_MASK_OPMASK (1 << XFEATURE_OPMASK)
+#define XFEATURE_MASK_ZMM_Hi256 (1 << XFEATURE_ZMM_Hi256)
+#define XFEATURE_MASK_Hi16_ZMM (1 << XFEATURE_Hi16_ZMM)
+#define XFEATURE_MASK_PT (1 << XFEATURE_PT_UNIMPLEMENTED_SO_FAR)
+#define XFEATURE_MASK_PKRU (1 << XFEATURE_PKRU)
+#define XFEATURE_MASK_PASID (1 << XFEATURE_PASID)
+#define XFEATURE_MASK_LBR (1 << XFEATURE_LBR)
+#define XFEATURE_MASK_XTILE_CFG (1 << XFEATURE_XTILE_CFG)
+#define XFEATURE_MASK_XTILE_DATA (1 << XFEATURE_XTILE_DATA)
+
+#define XFEATURE_MASK_FPSSE (XFEATURE_MASK_FP | XFEATURE_MASK_SSE)
+#define XFEATURE_MASK_AVX512 (XFEATURE_MASK_OPMASK \
+ | XFEATURE_MASK_ZMM_Hi256 \
+ | XFEATURE_MASK_Hi16_ZMM)
+
+#ifdef CONFIG_X86_64
+# define XFEATURE_MASK_XTILE (XFEATURE_MASK_XTILE_DATA \
+ | XFEATURE_MASK_XTILE_CFG)
+#else
+# define XFEATURE_MASK_XTILE (0)
+#endif
+
+#define FIRST_EXTENDED_XFEATURE XFEATURE_YMM
+
+struct reg_128_bit {
+ u8 regbytes[128/8];
+};
+struct reg_256_bit {
+ u8 regbytes[256/8];
+};
+struct reg_512_bit {
+ u8 regbytes[512/8];
+};
+struct reg_1024_byte {
+ u8 regbytes[1024];
+};
+
+/*
+ * State component 2:
+ *
+ * There are 16x 256-bit AVX registers named YMM0-YMM15.
+ * The low 128 bits are aliased to the 16 SSE registers (XMM0-XMM15)
+ * and are stored in 'struct fxregs_state::xmm_space[]' in the
+ * "legacy" area.
+ *
+ * The high 128 bits are stored here.
+ */
+struct ymmh_struct {
+ struct reg_128_bit hi_ymm[16];
+} __packed;
+
+/* Intel MPX support: */
+
+struct mpx_bndreg {
+ u64 lower_bound;
+ u64 upper_bound;
+} __packed;
+/*
+ * State component 3 is used for the 4 128-bit bounds registers
+ */
+struct mpx_bndreg_state {
+ struct mpx_bndreg bndreg[4];
+} __packed;
+
+/*
+ * State component 4 is used for the 64-bit user-mode MPX
+ * configuration register BNDCFGU and the 64-bit MPX status
+ * register BNDSTATUS. We call the pair "BNDCSR".
+ */
+struct mpx_bndcsr {
+ u64 bndcfgu;
+ u64 bndstatus;
+} __packed;
+
+/*
+ * The BNDCSR state is padded out to be 64-bytes in size.
+ */
+struct mpx_bndcsr_state {
+ union {
+ struct mpx_bndcsr bndcsr;
+ u8 pad_to_64_bytes[64];
+ };
+} __packed;
+
+/* AVX-512 Components: */
+
+/*
+ * State component 5 is used for the 8 64-bit opmask registers
+ * k0-k7 (opmask state).
+ */
+struct avx_512_opmask_state {
+ u64 opmask_reg[8];
+} __packed;
+
+/*
+ * State component 6 is used for the upper 256 bits of the
+ * registers ZMM0-ZMM15. These 16 256-bit values are denoted
+ * ZMM0_H-ZMM15_H (ZMM_Hi256 state).
+ */
+struct avx_512_zmm_uppers_state {
+ struct reg_256_bit zmm_upper[16];
+} __packed;
+
+/*
+ * State component 7 is used for the 16 512-bit registers
+ * ZMM16-ZMM31 (Hi16_ZMM state).
+ */
+struct avx_512_hi16_state {
+ struct reg_512_bit hi16_zmm[16];
+} __packed;
+
+/*
+ * State component 9: 32-bit PKRU register. The state is
+ * 8 bytes long but only 4 bytes is used currently.
+ */
+struct pkru_state {
+ u32 pkru;
+ u32 pad;
+} __packed;
+
+/*
+ * State component 15: Architectural LBR configuration state.
+ * The size of Arch LBR state depends on the number of LBRs (lbr_depth).
+ */
+
+struct lbr_entry {
+ u64 from;
+ u64 to;
+ u64 info;
+};
+
+struct arch_lbr_state {
+ u64 lbr_ctl;
+ u64 lbr_depth;
+ u64 ler_from;
+ u64 ler_to;
+ u64 ler_info;
+ struct lbr_entry entries[];
+};
+
+/*
+ * State component 17: 64-byte tile configuration register.
+ */
+struct xtile_cfg {
+ u64 tcfg[8];
+} __packed;
+
+/*
+ * State component 18: 1KB tile data register.
+ * Each register represents 16 64-byte rows of the matrix
+ * data. But the number of registers depends on the actual
+ * implementation.
+ */
+struct xtile_data {
+ struct reg_1024_byte tmm;
+} __packed;
+
+/*
+ * State component 10 is supervisor state used for context-switching the
+ * PASID state.
+ */
+struct ia32_pasid_state {
+ u64 pasid;
+} __packed;
+
+struct xstate_header {
+ u64 xfeatures;
+ u64 xcomp_bv;
+ u64 reserved[6];
+} __attribute__((packed));
+
+/*
+ * xstate_header.xcomp_bv[63] indicates that the extended_state_area
+ * is in compacted format.
+ */
+#define XCOMP_BV_COMPACTED_FORMAT ((u64)1 << 63)
+
+/*
+ * This is our most modern FPU state format, as saved by the XSAVE
+ * and restored by the XRSTOR instructions.
+ *
+ * It consists of a legacy fxregs portion, an xstate header and
+ * subsequent areas as defined by the xstate header. Not all CPUs
+ * support all the extensions, so the size of the extended area
+ * can vary quite a bit between CPUs.
+ */
+struct xregs_state {
+ struct fxregs_state i387;
+ struct xstate_header header;
+ u8 extended_state_area[];
+} __attribute__ ((packed, aligned (64)));
+
+/*
+ * This is a union of all the possible FPU state formats
+ * put together, so that we can pick the right one runtime.
+ *
+ * The size of the structure is determined by the largest
+ * member - which is the xsave area. The padding is there
+ * to ensure that statically-allocated task_structs (just
+ * the init_task today) have enough space.
+ */
+union fpregs_state {
+ struct fregs_state fsave;
+ struct fxregs_state fxsave;
+ struct swregs_state soft;
+ struct xregs_state xsave;
+ u8 __padding[PAGE_SIZE];
+};
+
+struct fpstate {
+ /* @kernel_size: The size of the kernel register image */
+ unsigned int size;
+
+ /* @user_size: The size in non-compacted UABI format */
+ unsigned int user_size;
+
+ /* @xfeatures: xfeatures for which the storage is sized */
+ u64 xfeatures;
+
+ /* @user_xfeatures: xfeatures valid in UABI buffers */
+ u64 user_xfeatures;
+
+ /* @xfd: xfeatures disabled to trap userspace use. */
+ u64 xfd;
+
+ /* @is_valloc: Indicator for dynamically allocated state */
+ unsigned int is_valloc : 1;
+
+ /* @is_guest: Indicator for guest state (KVM) */
+ unsigned int is_guest : 1;
+
+ /*
+ * @is_confidential: Indicator for KVM confidential mode.
+ * The FPU registers are restored by the
+ * vmentry firmware from encrypted guest
+ * memory. On vmexit the FPU registers are
+ * saved by firmware to encrypted guest memory
+ * and the registers are scrubbed before
+ * returning to the host. So there is no
+ * content which is worth saving and restoring.
+ * The fpstate has to be there so that
+ * preemption and softirq FPU usage works
+ * without special casing.
+ */
+ unsigned int is_confidential : 1;
+
+ /* @in_use: State is in use */
+ unsigned int in_use : 1;
+
+ /* @regs: The register state union for all supported formats */
+ union fpregs_state regs;
+
+ /* @regs is dynamically sized! Don't add anything after @regs! */
+} __aligned(64);
+
+#define FPU_GUEST_PERM_LOCKED BIT_ULL(63)
+
+struct fpu_state_perm {
+ /*
+ * @__state_perm:
+ *
+ * This bitmap indicates the permission for state components, which
+ * are available to a thread group. The permission prctl() sets the
+ * enabled state bits in thread_group_leader()->thread.fpu.
+ *
+ * All run time operations use the per thread information in the
+ * currently active fpu.fpstate which contains the xfeature masks
+ * and sizes for kernel and user space.
+ *
+ * This master permission field is only to be used when
+ * task.fpu.fpstate based checks fail to validate whether the task
+ * is allowed to expand it's xfeatures set which requires to
+ * allocate a larger sized fpstate buffer.
+ *
+ * Do not access this field directly. Use the provided helper
+ * function. Unlocked access is possible for quick checks.
+ */
+ u64 __state_perm;
+
+ /*
+ * @__state_size:
+ *
+ * The size required for @__state_perm. Only valid to access
+ * with sighand locked.
+ */
+ unsigned int __state_size;
+
+ /*
+ * @__user_state_size:
+ *
+ * The size required for @__state_perm user part. Only valid to
+ * access with sighand locked.
+ */
+ unsigned int __user_state_size;
+};
+
+/*
+ * Highest level per task FPU state data structure that
+ * contains the FPU register state plus various FPU
+ * state fields:
+ */
+struct fpu {
+ /*
+ * @last_cpu:
+ *
+ * Records the last CPU on which this context was loaded into
+ * FPU registers. (In the lazy-restore case we might be
+ * able to reuse FPU registers across multiple context switches
+ * this way, if no intermediate task used the FPU.)
+ *
+ * A value of -1 is used to indicate that the FPU state in context
+ * memory is newer than the FPU state in registers, and that the
+ * FPU state should be reloaded next time the task is run.
+ */
+ unsigned int last_cpu;
+
+ /*
+ * @avx512_timestamp:
+ *
+ * Records the timestamp of AVX512 use during last context switch.
+ */
+ unsigned long avx512_timestamp;
+
+ /*
+ * @fpstate:
+ *
+ * Pointer to the active struct fpstate. Initialized to
+ * point at @__fpstate below.
+ */
+ struct fpstate *fpstate;
+
+ /*
+ * @__task_fpstate:
+ *
+ * Pointer to an inactive struct fpstate. Initialized to NULL. Is
+ * used only for KVM support to swap out the regular task fpstate.
+ */
+ struct fpstate *__task_fpstate;
+
+ /*
+ * @perm:
+ *
+ * Permission related information
+ */
+ struct fpu_state_perm perm;
+
+ /*
+ * @guest_perm:
+ *
+ * Permission related information for guest pseudo FPUs
+ */
+ struct fpu_state_perm guest_perm;
+
+ /*
+ * @__fpstate:
+ *
+ * Initial in-memory storage for FPU registers which are saved in
+ * context switch and when the kernel uses the FPU. The registers
+ * are restored from this storage on return to user space if they
+ * are not longer containing the tasks FPU register state.
+ */
+ struct fpstate __fpstate;
+ /*
+ * WARNING: '__fpstate' is dynamically-sized. Do not put
+ * anything after it here.
+ */
+};
+
+/*
+ * Guest pseudo FPU container
+ */
+struct fpu_guest {
+ /*
+ * @xfeatures: xfeature bitmap of features which are
+ * currently enabled for the guest vCPU.
+ */
+ u64 xfeatures;
+
+ /*
+ * @perm: xfeature bitmap of features which are
+ * permitted to be enabled for the guest
+ * vCPU.
+ */
+ u64 perm;
+
+ /*
+ * @xfd_err: Save the guest value.
+ */
+ u64 xfd_err;
+
+ /*
+ * @uabi_size: Size required for save/restore
+ */
+ unsigned int uabi_size;
+
+ /*
+ * @fpstate: Pointer to the allocated guest fpstate
+ */
+ struct fpstate *fpstate;
+};
+
+/*
+ * FPU state configuration data. Initialized at boot time. Read only after init.
+ */
+struct fpu_state_config {
+ /*
+ * @max_size:
+ *
+ * The maximum size of the register state buffer. Includes all
+ * supported features except independent managed features.
+ */
+ unsigned int max_size;
+
+ /*
+ * @default_size:
+ *
+ * The default size of the register state buffer. Includes all
+ * supported features except independent managed features and
+ * features which have to be requested by user space before usage.
+ */
+ unsigned int default_size;
+
+ /*
+ * @max_features:
+ *
+ * The maximum supported features bitmap. Does not include
+ * independent managed features.
+ */
+ u64 max_features;
+
+ /*
+ * @default_features:
+ *
+ * The default supported features bitmap. Does not include
+ * independent managed features and features which have to
+ * be requested by user space before usage.
+ */
+ u64 default_features;
+ /*
+ * @legacy_features:
+ *
+ * Features which can be reported back to user space
+ * even without XSAVE support, i.e. legacy features FP + SSE
+ */
+ u64 legacy_features;
+};
+
+/* FPU state configuration information */
+extern struct fpu_state_config fpu_kernel_cfg, fpu_user_cfg;
+
+#endif /* _ASM_X86_FPU_H */
diff --git a/arch/x86/include/asm/fpu/xcr.h b/arch/x86/include/asm/fpu/xcr.h
new file mode 100644
index 000000000000..9a710c060445
--- /dev/null
+++ b/arch/x86/include/asm/fpu/xcr.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_FPU_XCR_H
+#define _ASM_X86_FPU_XCR_H
+
+#define XCR_XFEATURE_ENABLED_MASK 0x00000000
+#define XCR_XFEATURE_IN_USE_MASK 0x00000001
+
+static __always_inline u64 xgetbv(u32 index)
+{
+ u32 eax, edx;
+
+ asm volatile("xgetbv" : "=a" (eax), "=d" (edx) : "c" (index));
+ return eax + ((u64)edx << 32);
+}
+
+static inline void xsetbv(u32 index, u64 value)
+{
+ u32 eax = value;
+ u32 edx = value >> 32;
+
+ asm volatile("xsetbv" :: "a" (eax), "d" (edx), "c" (index));
+}
+
+/*
+ * Return a mask of xfeatures which are currently being tracked
+ * by the processor as being in the initial configuration.
+ *
+ * Callers should check X86_FEATURE_XGETBV1.
+ */
+static __always_inline u64 xfeatures_in_use(void)
+{
+ return xgetbv(XCR_XFEATURE_IN_USE_MASK);
+}
+
+#endif /* _ASM_X86_FPU_XCR_H */
diff --git a/arch/x86/include/asm/fpu/xstate.h b/arch/x86/include/asm/fpu/xstate.h
new file mode 100644
index 000000000000..cd3dd170e23a
--- /dev/null
+++ b/arch/x86/include/asm/fpu/xstate.h
@@ -0,0 +1,132 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_X86_XSAVE_H
+#define __ASM_X86_XSAVE_H
+
+#include <linux/uaccess.h>
+#include <linux/types.h>
+
+#include <asm/processor.h>
+#include <asm/fpu/api.h>
+#include <asm/user.h>
+
+/* Bit 63 of XCR0 is reserved for future expansion */
+#define XFEATURE_MASK_EXTEND (~(XFEATURE_MASK_FPSSE | (1ULL << 63)))
+
+#define XSTATE_CPUID 0x0000000d
+
+#define TILE_CPUID 0x0000001d
+
+#define FXSAVE_SIZE 512
+
+#define XSAVE_HDR_SIZE 64
+#define XSAVE_HDR_OFFSET FXSAVE_SIZE
+
+#define XSAVE_YMM_SIZE 256
+#define XSAVE_YMM_OFFSET (XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET)
+
+#define XSAVE_ALIGNMENT 64
+
+/* All currently supported user features */
+#define XFEATURE_MASK_USER_SUPPORTED (XFEATURE_MASK_FP | \
+ XFEATURE_MASK_SSE | \
+ XFEATURE_MASK_YMM | \
+ XFEATURE_MASK_OPMASK | \
+ XFEATURE_MASK_ZMM_Hi256 | \
+ XFEATURE_MASK_Hi16_ZMM | \
+ XFEATURE_MASK_PKRU | \
+ XFEATURE_MASK_BNDREGS | \
+ XFEATURE_MASK_BNDCSR | \
+ XFEATURE_MASK_XTILE)
+
+/*
+ * Features which are restored when returning to user space.
+ * PKRU is not restored on return to user space because PKRU
+ * is switched eagerly in switch_to() and flush_thread()
+ */
+#define XFEATURE_MASK_USER_RESTORE \
+ (XFEATURE_MASK_USER_SUPPORTED & ~XFEATURE_MASK_PKRU)
+
+/* Features which are dynamically enabled for a process on request */
+#define XFEATURE_MASK_USER_DYNAMIC XFEATURE_MASK_XTILE_DATA
+
+/* All currently supported supervisor features */
+#define XFEATURE_MASK_SUPERVISOR_SUPPORTED (XFEATURE_MASK_PASID)
+
+/*
+ * A supervisor state component may not always contain valuable information,
+ * and its size may be huge. Saving/restoring such supervisor state components
+ * at each context switch can cause high CPU and space overhead, which should
+ * be avoided. Such supervisor state components should only be saved/restored
+ * on demand. The on-demand supervisor features are set in this mask.
+ *
+ * Unlike the existing supported supervisor features, an independent supervisor
+ * feature does not allocate a buffer in task->fpu, and the corresponding
+ * supervisor state component cannot be saved/restored at each context switch.
+ *
+ * To support an independent supervisor feature, a developer should follow the
+ * dos and don'ts as below:
+ * - Do dynamically allocate a buffer for the supervisor state component.
+ * - Do manually invoke the XSAVES/XRSTORS instruction to save/restore the
+ * state component to/from the buffer.
+ * - Don't set the bit corresponding to the independent supervisor feature in
+ * IA32_XSS at run time, since it has been set at boot time.
+ */
+#define XFEATURE_MASK_INDEPENDENT (XFEATURE_MASK_LBR)
+
+/*
+ * Unsupported supervisor features. When a supervisor feature in this mask is
+ * supported in the future, move it to the supported supervisor feature mask.
+ */
+#define XFEATURE_MASK_SUPERVISOR_UNSUPPORTED (XFEATURE_MASK_PT)
+
+/* All supervisor states including supported and unsupported states. */
+#define XFEATURE_MASK_SUPERVISOR_ALL (XFEATURE_MASK_SUPERVISOR_SUPPORTED | \
+ XFEATURE_MASK_INDEPENDENT | \
+ XFEATURE_MASK_SUPERVISOR_UNSUPPORTED)
+
+/*
+ * The feature mask required to restore FPU state:
+ * - All user states which are not eagerly switched in switch_to()/exec()
+ * - The suporvisor states
+ */
+#define XFEATURE_MASK_FPSTATE (XFEATURE_MASK_USER_RESTORE | \
+ XFEATURE_MASK_SUPERVISOR_SUPPORTED)
+
+/*
+ * Features in this mask have space allocated in the signal frame, but may not
+ * have that space initialized when the feature is in its init state.
+ */
+#define XFEATURE_MASK_SIGFRAME_INITOPT (XFEATURE_MASK_XTILE | \
+ XFEATURE_MASK_USER_DYNAMIC)
+
+extern u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS];
+
+extern void __init update_regset_xstate_info(unsigned int size,
+ u64 xstate_mask);
+
+int xfeature_size(int xfeature_nr);
+
+void xsaves(struct xregs_state *xsave, u64 mask);
+void xrstors(struct xregs_state *xsave, u64 mask);
+
+int xfd_enable_feature(u64 xfd_err);
+
+#ifdef CONFIG_X86_64
+DECLARE_STATIC_KEY_FALSE(__fpu_state_size_dynamic);
+#endif
+
+#ifdef CONFIG_X86_64
+DECLARE_STATIC_KEY_FALSE(__fpu_state_size_dynamic);
+
+static __always_inline __pure bool fpu_state_size_dynamic(void)
+{
+ return static_branch_unlikely(&__fpu_state_size_dynamic);
+}
+#else
+static __always_inline __pure bool fpu_state_size_dynamic(void)
+{
+ return false;
+}
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/frame.h b/arch/x86/include/asm/frame.h
index 2c6fc9e62812..fb42659f6e98 100644
--- a/arch/x86/include/asm/frame.h
+++ b/arch/x86/include/asm/frame.h
@@ -1,25 +1,113 @@
-#ifdef __ASSEMBLY__
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_FRAME_H
+#define _ASM_X86_FRAME_H
+
+#include <asm/asm.h>
-#include <asm/dwarf2.h>
+/*
+ * These are stack frame creation macros. They should be used by every
+ * callable non-leaf asm function to make kernel stack traces more reliable.
+ */
-/* The annotation hides the frame from the unwinder and makes it look
- like a ordinary ebp save/restore. This avoids some special cases for
- frame pointer later */
#ifdef CONFIG_FRAME_POINTER
- .macro FRAME
- pushl_cfi %ebp
- CFI_REL_OFFSET ebp,0
- movl %esp,%ebp
- .endm
- .macro ENDFRAME
- popl_cfi %ebp
- CFI_RESTORE ebp
- .endm
-#else
- .macro FRAME
- .endm
- .macro ENDFRAME
- .endm
+
+#ifdef __ASSEMBLY__
+
+.macro FRAME_BEGIN
+ push %_ASM_BP
+ _ASM_MOV %_ASM_SP, %_ASM_BP
+.endm
+
+.macro FRAME_END
+ pop %_ASM_BP
+.endm
+
+#ifdef CONFIG_X86_64
+/*
+ * This is a sneaky trick to help the unwinder find pt_regs on the stack. The
+ * frame pointer is replaced with an encoded pointer to pt_regs. The encoding
+ * is just setting the LSB, which makes it an invalid stack address and is also
+ * a signal to the unwinder that it's a pt_regs pointer in disguise.
+ *
+ * NOTE: This macro must be used *after* PUSH_AND_CLEAR_REGS because it corrupts
+ * the original rbp.
+ */
+.macro ENCODE_FRAME_POINTER ptregs_offset=0
+ leaq 1+\ptregs_offset(%rsp), %rbp
+.endm
+#else /* !CONFIG_X86_64 */
+/*
+ * This is a sneaky trick to help the unwinder find pt_regs on the stack. The
+ * frame pointer is replaced with an encoded pointer to pt_regs. The encoding
+ * is just clearing the MSB, which makes it an invalid stack address and is also
+ * a signal to the unwinder that it's a pt_regs pointer in disguise.
+ *
+ * NOTE: This macro must be used *after* SAVE_ALL because it corrupts the
+ * original ebp.
+ */
+.macro ENCODE_FRAME_POINTER
+ mov %esp, %ebp
+ andl $0x7fffffff, %ebp
+.endm
+#endif /* CONFIG_X86_64 */
+
+#else /* !__ASSEMBLY__ */
+
+#define FRAME_BEGIN \
+ "push %" _ASM_BP "\n" \
+ _ASM_MOV "%" _ASM_SP ", %" _ASM_BP "\n"
+
+#define FRAME_END "pop %" _ASM_BP "\n"
+
+#ifdef CONFIG_X86_64
+
+#define ENCODE_FRAME_POINTER \
+ "lea 1(%rsp), %rbp\n\t"
+
+static inline unsigned long encode_frame_pointer(struct pt_regs *regs)
+{
+ return (unsigned long)regs + 1;
+}
+
+#else /* !CONFIG_X86_64 */
+
+#define ENCODE_FRAME_POINTER \
+ "movl %esp, %ebp\n\t" \
+ "andl $0x7fffffff, %ebp\n\t"
+
+static inline unsigned long encode_frame_pointer(struct pt_regs *regs)
+{
+ return (unsigned long)regs & 0x7fffffff;
+}
+
+#endif /* CONFIG_X86_64 */
+
+#endif /* __ASSEMBLY__ */
+
+#define FRAME_OFFSET __ASM_SEL(4, 8)
+
+#else /* !CONFIG_FRAME_POINTER */
+
+#ifdef __ASSEMBLY__
+
+.macro ENCODE_FRAME_POINTER ptregs_offset=0
+.endm
+
+#else /* !__ASSEMBLY */
+
+#define ENCODE_FRAME_POINTER
+
+static inline unsigned long encode_frame_pointer(struct pt_regs *regs)
+{
+ return 0;
+}
+
#endif
-#endif /* __ASSEMBLY__ */
+#define FRAME_BEGIN
+#define FRAME_END
+#define FRAME_OFFSET 0
+
+#endif /* CONFIG_FRAME_POINTER */
+
+#endif /* _ASM_X86_FRAME_H */
diff --git a/arch/x86/include/asm/fsgsbase.h b/arch/x86/include/asm/fsgsbase.h
new file mode 100644
index 000000000000..35cff5f2becf
--- /dev/null
+++ b/arch/x86/include/asm/fsgsbase.h
@@ -0,0 +1,85 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_FSGSBASE_H
+#define _ASM_FSGSBASE_H
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_X86_64
+
+#include <asm/msr-index.h>
+
+/*
+ * Read/write a task's FSBASE or GSBASE. This returns the value that
+ * the FS/GS base would have (if the task were to be resumed). These
+ * work on the current task or on a non-running (typically stopped
+ * ptrace child) task.
+ */
+extern unsigned long x86_fsbase_read_task(struct task_struct *task);
+extern unsigned long x86_gsbase_read_task(struct task_struct *task);
+extern void x86_fsbase_write_task(struct task_struct *task, unsigned long fsbase);
+extern void x86_gsbase_write_task(struct task_struct *task, unsigned long gsbase);
+
+/* Must be protected by X86_FEATURE_FSGSBASE check. */
+
+static __always_inline unsigned long rdfsbase(void)
+{
+ unsigned long fsbase;
+
+ asm volatile("rdfsbase %0" : "=r" (fsbase) :: "memory");
+
+ return fsbase;
+}
+
+static __always_inline unsigned long rdgsbase(void)
+{
+ unsigned long gsbase;
+
+ asm volatile("rdgsbase %0" : "=r" (gsbase) :: "memory");
+
+ return gsbase;
+}
+
+static __always_inline void wrfsbase(unsigned long fsbase)
+{
+ asm volatile("wrfsbase %0" :: "r" (fsbase) : "memory");
+}
+
+static __always_inline void wrgsbase(unsigned long gsbase)
+{
+ asm volatile("wrgsbase %0" :: "r" (gsbase) : "memory");
+}
+
+#include <asm/cpufeature.h>
+
+/* Helper functions for reading/writing FS/GS base */
+
+static inline unsigned long x86_fsbase_read_cpu(void)
+{
+ unsigned long fsbase;
+
+ if (boot_cpu_has(X86_FEATURE_FSGSBASE))
+ fsbase = rdfsbase();
+ else
+ rdmsrl(MSR_FS_BASE, fsbase);
+
+ return fsbase;
+}
+
+static inline void x86_fsbase_write_cpu(unsigned long fsbase)
+{
+ if (boot_cpu_has(X86_FEATURE_FSGSBASE))
+ wrfsbase(fsbase);
+ else
+ wrmsrl(MSR_FS_BASE, fsbase);
+}
+
+extern unsigned long x86_gsbase_read_cpu_inactive(void);
+extern void x86_gsbase_write_cpu_inactive(unsigned long gsbase);
+extern unsigned long x86_fsgsbase_read_task(struct task_struct *task,
+ unsigned short selector);
+
+#endif /* CONFIG_X86_64 */
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_FSGSBASE_H */
diff --git a/arch/x86/include/asm/ftrace.h b/arch/x86/include/asm/ftrace.h
index db24c2278be0..5061ac98ffa1 100644
--- a/arch/x86/include/asm/ftrace.h
+++ b/arch/x86/include/asm/ftrace.h
@@ -1,49 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_FTRACE_H
#define _ASM_X86_FTRACE_H
-#ifdef __ASSEMBLY__
-
- .macro MCOUNT_SAVE_FRAME
- /* taken from glibc */
- subq $0x38, %rsp
- movq %rax, (%rsp)
- movq %rcx, 8(%rsp)
- movq %rdx, 16(%rsp)
- movq %rsi, 24(%rsp)
- movq %rdi, 32(%rsp)
- movq %r8, 40(%rsp)
- movq %r9, 48(%rsp)
- .endm
-
- .macro MCOUNT_RESTORE_FRAME
- movq 48(%rsp), %r9
- movq 40(%rsp), %r8
- movq 32(%rsp), %rdi
- movq 24(%rsp), %rsi
- movq 16(%rsp), %rdx
- movq 8(%rsp), %rcx
- movq (%rsp), %rax
- addq $0x38, %rsp
- .endm
+#ifdef CONFIG_FUNCTION_TRACER
+#ifndef CC_USING_FENTRY
+# error Compiler does not support fentry?
+#endif
+# define MCOUNT_ADDR ((unsigned long)(__fentry__))
+#define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */
+/* Ignore unused weak functions which will have non zero offsets */
+#ifdef CONFIG_HAVE_FENTRY
+# include <asm/ibt.h>
+/* Add offset for endbr64 if IBT enabled */
+# define FTRACE_MCOUNT_MAX_OFFSET ENDBR_INSN_SIZE
#endif
-#ifdef CONFIG_FUNCTION_TRACER
-#define MCOUNT_ADDR ((long)(mcount))
-#define MCOUNT_INSN_SIZE 5 /* sizeof mcount call */
+#ifdef CONFIG_DYNAMIC_FTRACE
+#define ARCH_SUPPORTS_FTRACE_OPS 1
+#endif
+
+#define HAVE_FUNCTION_GRAPH_RET_ADDR_PTR
#ifndef __ASSEMBLY__
-extern void mcount(void);
+extern void __fentry__(void);
static inline unsigned long ftrace_call_adjust(unsigned long addr)
{
/*
- * call mcount is "e8 <4 byte offset>"
- * The addr points to the 4 byte offset and the caller of this
- * function wants the pointer to e8. Simply subtract one.
+ * addr is the address of the mcount call instruction.
+ * recordmcount does the necessary offset calculation.
*/
- return addr - 1;
+ return addr;
+}
+
+#ifdef CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS
+struct ftrace_regs {
+ struct pt_regs regs;
+};
+
+static __always_inline struct pt_regs *
+arch_ftrace_get_regs(struct ftrace_regs *fregs)
+{
+ /* Only when FL_SAVE_REGS is set, cs will be non zero */
+ if (!fregs->regs.cs)
+ return NULL;
+ return &fregs->regs;
+}
+
+#define ftrace_regs_set_instruction_pointer(fregs, _ip) \
+ do { (fregs)->regs.ip = (_ip); } while (0)
+
+#define ftrace_regs_get_instruction_pointer(fregs) \
+ ((fregs)->regs.ip)
+
+#define ftrace_regs_get_argument(fregs, n) \
+ regs_get_kernel_argument(&(fregs)->regs, n)
+#define ftrace_regs_get_stack_pointer(fregs) \
+ kernel_stack_pointer(&(fregs)->regs)
+#define ftrace_regs_return_value(fregs) \
+ regs_return_value(&(fregs)->regs)
+#define ftrace_regs_set_return_value(fregs, ret) \
+ regs_set_return_value(&(fregs)->regs, ret)
+#define ftrace_override_function_with_return(fregs) \
+ override_function_with_return(&(fregs)->regs)
+#define ftrace_regs_query_register_offset(name) \
+ regs_query_register_offset(name)
+
+struct ftrace_ops;
+#define ftrace_graph_func ftrace_graph_func
+void ftrace_graph_func(unsigned long ip, unsigned long parent_ip,
+ struct ftrace_ops *op, struct ftrace_regs *fregs);
+#else
+#define FTRACE_GRAPH_TRAMP_ADDR FTRACE_GRAPH_ADDR
+#endif
+
+#ifdef CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
+/*
+ * When a ftrace registered caller is tracing a function that is
+ * also set by a register_ftrace_direct() call, it needs to be
+ * differentiated in the ftrace_caller trampoline. To do this, we
+ * place the direct caller in the ORIG_AX part of pt_regs. This
+ * tells the ftrace_caller that there's a direct caller.
+ */
+static inline void
+__arch_ftrace_set_direct_caller(struct pt_regs *regs, unsigned long addr)
+{
+ /* Emulate a call */
+ regs->orig_ax = addr;
}
+#define arch_ftrace_set_direct_caller(fregs, addr) \
+ __arch_ftrace_set_direct_caller(&(fregs)->regs, addr)
+#endif /* CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS */
#ifdef CONFIG_DYNAMIC_FTRACE
@@ -55,4 +103,48 @@ struct dyn_arch_ftrace {
#endif /* __ASSEMBLY__ */
#endif /* CONFIG_FUNCTION_TRACER */
+
+#ifndef __ASSEMBLY__
+
+#if defined(CONFIG_FUNCTION_TRACER) && defined(CONFIG_DYNAMIC_FTRACE)
+extern void set_ftrace_ops_ro(void);
+#else
+static inline void set_ftrace_ops_ro(void) { }
+#endif
+
+#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME
+static inline bool arch_syscall_match_sym_name(const char *sym, const char *name)
+{
+ /*
+ * Compare the symbol name with the system call name. Skip the
+ * "__x64_sys", "__ia32_sys", "__do_sys" or simple "sys" prefix.
+ */
+ return !strcmp(sym + 3, name + 3) ||
+ (!strncmp(sym, "__x64_", 6) && !strcmp(sym + 9, name + 3)) ||
+ (!strncmp(sym, "__ia32_", 7) && !strcmp(sym + 10, name + 3)) ||
+ (!strncmp(sym, "__do_sys", 8) && !strcmp(sym + 8, name + 3));
+}
+
+#ifndef COMPILE_OFFSETS
+
+#if defined(CONFIG_FTRACE_SYSCALLS) && defined(CONFIG_IA32_EMULATION)
+#include <linux/compat.h>
+
+/*
+ * Because ia32 syscalls do not map to x86_64 syscall numbers
+ * this screws up the trace output when tracing a ia32 task.
+ * Instead of reporting bogus syscalls, just do not trace them.
+ *
+ * If the user really wants these, then they should use the
+ * raw syscall tracepoints with filtering.
+ */
+#define ARCH_TRACE_IGNORE_COMPAT_SYSCALLS 1
+static inline bool arch_trace_is_compat_syscall(struct pt_regs *regs)
+{
+ return in_32bit_syscall();
+}
+#endif /* CONFIG_FTRACE_SYSCALLS && CONFIG_IA32_EMULATION */
+#endif /* !COMPILE_OFFSETS */
+#endif /* !__ASSEMBLY__ */
+
#endif /* _ASM_X86_FTRACE_H */
diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h
index d09bb03653f0..99d345b686fa 100644
--- a/arch/x86/include/asm/futex.h
+++ b/arch/x86/include/asm/futex.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_FUTEX_H
#define _ASM_X86_FUTEX_H
@@ -9,104 +10,73 @@
#include <asm/asm.h>
#include <asm/errno.h>
#include <asm/processor.h>
-#include <asm/system.h>
+#include <asm/smap.h>
-#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \
+#define unsafe_atomic_op1(insn, oval, uaddr, oparg, label) \
+do { \
+ int oldval = 0, ret; \
asm volatile("1:\t" insn "\n" \
- "2:\t.section .fixup,\"ax\"\n" \
- "3:\tmov\t%3, %1\n" \
- "\tjmp\t2b\n" \
- "\t.previous\n" \
- _ASM_EXTABLE(1b, 3b) \
+ "2:\n" \
+ _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_EFAULT_REG, %1) \
: "=r" (oldval), "=r" (ret), "+m" (*uaddr) \
- : "i" (-EFAULT), "0" (oparg), "1" (0))
+ : "0" (oparg), "1" (0)); \
+ if (ret) \
+ goto label; \
+ *oval = oldval; \
+} while(0)
-#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \
+
+#define unsafe_atomic_op2(insn, oval, uaddr, oparg, label) \
+do { \
+ int oldval = 0, ret, tem; \
asm volatile("1:\tmovl %2, %0\n" \
- "\tmovl\t%0, %3\n" \
+ "2:\tmovl\t%0, %3\n" \
"\t" insn "\n" \
- "2:\t" LOCK_PREFIX "cmpxchgl %3, %2\n" \
- "\tjnz\t1b\n" \
- "3:\t.section .fixup,\"ax\"\n" \
- "4:\tmov\t%5, %1\n" \
- "\tjmp\t3b\n" \
- "\t.previous\n" \
- _ASM_EXTABLE(1b, 4b) \
- _ASM_EXTABLE(2b, 4b) \
+ "3:\t" LOCK_PREFIX "cmpxchgl %3, %2\n" \
+ "\tjnz\t2b\n" \
+ "4:\n" \
+ _ASM_EXTABLE_TYPE_REG(1b, 4b, EX_TYPE_EFAULT_REG, %1) \
+ _ASM_EXTABLE_TYPE_REG(3b, 4b, EX_TYPE_EFAULT_REG, %1) \
: "=&a" (oldval), "=&r" (ret), \
"+m" (*uaddr), "=&r" (tem) \
- : "r" (oparg), "i" (-EFAULT), "1" (0))
-
-static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr)
+ : "r" (oparg), "1" (0)); \
+ if (ret) \
+ goto label; \
+ *oval = oldval; \
+} while(0)
+
+static __always_inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval,
+ u32 __user *uaddr)
{
- int op = (encoded_op >> 28) & 7;
- int cmp = (encoded_op >> 24) & 15;
- int oparg = (encoded_op << 8) >> 20;
- int cmparg = (encoded_op << 20) >> 20;
- int oldval = 0, ret, tem;
-
- if (encoded_op & (FUTEX_OP_OPARG_SHIFT << 28))
- oparg = 1 << oparg;
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+ if (!user_access_begin(uaddr, sizeof(u32)))
return -EFAULT;
-#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_BSWAP)
- /* Real i386 machines can only support FUTEX_OP_SET */
- if (op != FUTEX_OP_SET && boot_cpu_data.x86 == 3)
- return -ENOSYS;
-#endif
-
- pagefault_disable();
-
switch (op) {
case FUTEX_OP_SET:
- __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg);
+ unsafe_atomic_op1("xchgl %0, %2", oval, uaddr, oparg, Efault);
break;
case FUTEX_OP_ADD:
- __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval,
- uaddr, oparg);
+ unsafe_atomic_op1(LOCK_PREFIX "xaddl %0, %2", oval,
+ uaddr, oparg, Efault);
break;
case FUTEX_OP_OR:
- __futex_atomic_op2("orl %4, %3", ret, oldval, uaddr, oparg);
+ unsafe_atomic_op2("orl %4, %3", oval, uaddr, oparg, Efault);
break;
case FUTEX_OP_ANDN:
- __futex_atomic_op2("andl %4, %3", ret, oldval, uaddr, ~oparg);
+ unsafe_atomic_op2("andl %4, %3", oval, uaddr, ~oparg, Efault);
break;
case FUTEX_OP_XOR:
- __futex_atomic_op2("xorl %4, %3", ret, oldval, uaddr, oparg);
+ unsafe_atomic_op2("xorl %4, %3", oval, uaddr, oparg, Efault);
break;
default:
- ret = -ENOSYS;
- }
-
- pagefault_enable();
-
- if (!ret) {
- switch (cmp) {
- case FUTEX_OP_CMP_EQ:
- ret = (oldval == cmparg);
- break;
- case FUTEX_OP_CMP_NE:
- ret = (oldval != cmparg);
- break;
- case FUTEX_OP_CMP_LT:
- ret = (oldval < cmparg);
- break;
- case FUTEX_OP_CMP_GE:
- ret = (oldval >= cmparg);
- break;
- case FUTEX_OP_CMP_LE:
- ret = (oldval <= cmparg);
- break;
- case FUTEX_OP_CMP_GT:
- ret = (oldval > cmparg);
- break;
- default:
- ret = -ENOSYS;
- }
+ user_access_end();
+ return -ENOSYS;
}
- return ret;
+ user_access_end();
+ return 0;
+Efault:
+ user_access_end();
+ return -EFAULT;
}
static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
@@ -114,26 +84,17 @@ static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
{
int ret = 0;
-#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_BSWAP)
- /* Real i386 machines have no cmpxchg instruction */
- if (boot_cpu_data.x86 == 3)
- return -ENOSYS;
-#endif
-
- if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32)))
+ if (!user_access_begin(uaddr, sizeof(u32)))
return -EFAULT;
-
- asm volatile("1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n"
- "2:\t.section .fixup, \"ax\"\n"
- "3:\tmov %3, %0\n"
- "\tjmp 2b\n"
- "\t.previous\n"
- _ASM_EXTABLE(1b, 3b)
- : "+r" (ret), "=a" (oldval), "+m" (*uaddr)
- : "i" (-EFAULT), "r" (newval), "1" (oldval)
- : "memory"
+ asm volatile("\n"
+ "1:\t" LOCK_PREFIX "cmpxchgl %3, %2\n"
+ "2:\n"
+ _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_EFAULT_REG, %0) \
+ : "+r" (ret), "=a" (oldval), "+m" (*uaddr)
+ : "r" (newval), "1" (oldval)
+ : "memory"
);
-
+ user_access_end();
*uval = oldval;
return ret;
}
diff --git a/arch/x86/include/asm/gart.h b/arch/x86/include/asm/gart.h
index 156cd5d18d2a..5af8088a10df 100644
--- a/arch/x86/include/asm/gart.h
+++ b/arch/x86/include/asm/gart.h
@@ -1,7 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_GART_H
#define _ASM_X86_GART_H
-#include <asm/e820.h>
+#include <asm/e820/api.h>
extern void set_up_gart_resume(u32, u32);
@@ -37,7 +38,7 @@ extern int gart_iommu_aperture_disabled;
extern void early_gart_iommu_check(void);
extern int gart_iommu_init(void);
extern void __init gart_parse_options(char *);
-extern int gart_iommu_hole_init(void);
+void gart_iommu_hole_init(void);
#else
#define gart_iommu_aperture 0
@@ -50,9 +51,8 @@ static inline void early_gart_iommu_check(void)
static inline void gart_parse_options(char *options)
{
}
-static inline int gart_iommu_hole_init(void)
+static inline void gart_iommu_hole_init(void)
{
- return -ENODEV;
}
#endif
@@ -97,7 +97,7 @@ static inline int aperture_valid(u64 aper_base, u32 aper_size, u32 min_size)
printk(KERN_INFO "Aperture beyond 4GB. Ignoring.\n");
return 0;
}
- if (e820_any_mapped(aper_base, aper_base + aper_size, E820_RAM)) {
+ if (e820__mapped_any(aper_base, aper_base + aper_size, E820_TYPE_RAM)) {
printk(KERN_INFO "Aperture pointing to e820 RAM. Ignoring.\n");
return 0;
}
diff --git a/arch/x86/include/asm/geode.h b/arch/x86/include/asm/geode.h
index 7cd73552a4e8..3c7267ef4a9e 100644
--- a/arch/x86/include/asm/geode.h
+++ b/arch/x86/include/asm/geode.h
@@ -1,10 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* AMD Geode definitions
* Copyright (C) 2006, Advanced Micro Devices, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public License
- * as published by the Free Software Foundation.
*/
#ifndef _ASM_X86_GEODE_H
diff --git a/arch/x86/include/asm/gpio.h b/arch/x86/include/asm/gpio.h
deleted file mode 100644
index 91d915a65259..000000000000
--- a/arch/x86/include/asm/gpio.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * Generic GPIO API implementation for x86.
- *
- * Derived from the generic GPIO API for powerpc:
- *
- * Copyright (c) 2007-2008 MontaVista Software, Inc.
- *
- * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef _ASM_X86_GPIO_H
-#define _ASM_X86_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#ifdef CONFIG_GPIOLIB
-
-/*
- * Just call gpiolib.
- */
-static inline int gpio_get_value(unsigned int gpio)
-{
- return __gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value(unsigned int gpio, int value)
-{
- __gpio_set_value(gpio, value);
-}
-
-static inline int gpio_cansleep(unsigned int gpio)
-{
- return __gpio_cansleep(gpio);
-}
-
-static inline int gpio_to_irq(unsigned int gpio)
-{
- return __gpio_to_irq(gpio);
-}
-
-static inline int irq_to_gpio(unsigned int irq)
-{
- return -EINVAL;
-}
-
-#endif /* CONFIG_GPIOLIB */
-
-#endif /* _ASM_X86_GPIO_H */
diff --git a/arch/x86/include/asm/gsseg.h b/arch/x86/include/asm/gsseg.h
new file mode 100644
index 000000000000..ab6a595cea70
--- /dev/null
+++ b/arch/x86/include/asm/gsseg.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _ASM_X86_GSSEG_H
+#define _ASM_X86_GSSEG_H
+
+#include <linux/types.h>
+
+#include <asm/asm.h>
+#include <asm/cpufeature.h>
+#include <asm/alternative.h>
+#include <asm/processor.h>
+#include <asm/nops.h>
+
+#ifdef CONFIG_X86_64
+
+extern asmlinkage void asm_load_gs_index(u16 selector);
+
+/* Replace with "lkgs %di" once binutils support LKGS instruction */
+#define LKGS_DI _ASM_BYTES(0xf2,0x0f,0x00,0xf7)
+
+static inline void native_lkgs(unsigned int selector)
+{
+ u16 sel = selector;
+ asm_inline volatile("1: " LKGS_DI
+ _ASM_EXTABLE_TYPE_REG(1b, 1b, EX_TYPE_ZERO_REG, %k[sel])
+ : [sel] "+D" (sel));
+}
+
+static inline void native_load_gs_index(unsigned int selector)
+{
+ if (cpu_feature_enabled(X86_FEATURE_LKGS)) {
+ native_lkgs(selector);
+ } else {
+ unsigned long flags;
+
+ local_irq_save(flags);
+ asm_load_gs_index(selector);
+ local_irq_restore(flags);
+ }
+}
+
+#endif /* CONFIG_X86_64 */
+
+static inline void __init lkgs_init(void)
+{
+#ifdef CONFIG_PARAVIRT_XXL
+#ifdef CONFIG_X86_64
+ if (cpu_feature_enabled(X86_FEATURE_LKGS))
+ pv_ops.cpu.load_gs_index = native_lkgs;
+#endif
+#endif
+}
+
+#ifndef CONFIG_PARAVIRT_XXL
+
+static inline void load_gs_index(unsigned int selector)
+{
+#ifdef CONFIG_X86_64
+ native_load_gs_index(selector);
+#else
+ loadsegment(gs, selector);
+#endif
+}
+
+#endif /* CONFIG_PARAVIRT_XXL */
+
+#endif /* _ASM_X86_GSSEG_H */
diff --git a/arch/x86/include/asm/hardirq.h b/arch/x86/include/asm/hardirq.h
index 55e4de613f0e..66837b8c67f1 100644
--- a/arch/x86/include/asm/hardirq.h
+++ b/arch/x86/include/asm/hardirq.h
@@ -1,16 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_HARDIRQ_H
#define _ASM_X86_HARDIRQ_H
#include <linux/threads.h>
-#include <linux/irq.h>
+#include <asm/current.h>
typedef struct {
- unsigned int __softirq_pending;
+#if IS_ENABLED(CONFIG_KVM_INTEL)
+ u8 kvm_cpu_l1tf_flush_l1d;
+#endif
unsigned int __nmi_count; /* arch dependent */
- unsigned int irq0_irqs;
#ifdef CONFIG_X86_LOCAL_APIC
unsigned int apic_timer_irqs; /* arch dependent */
unsigned int irq_spurious_count;
+ unsigned int icr_read_retry_count;
+#endif
+#ifdef CONFIG_HAVE_KVM
+ unsigned int kvm_posted_intr_ipis;
+ unsigned int kvm_posted_intr_wakeup_ipis;
+ unsigned int kvm_posted_intr_nested_ipis;
#endif
unsigned int x86_platform_ipis; /* arch dependent */
unsigned int apic_perf_irqs;
@@ -18,31 +26,31 @@ typedef struct {
#ifdef CONFIG_SMP
unsigned int irq_resched_count;
unsigned int irq_call_count;
- unsigned int irq_tlb_count;
#endif
+ unsigned int irq_tlb_count;
#ifdef CONFIG_X86_THERMAL_VECTOR
unsigned int irq_thermal_count;
#endif
#ifdef CONFIG_X86_MCE_THRESHOLD
unsigned int irq_threshold_count;
#endif
+#ifdef CONFIG_X86_MCE_AMD
+ unsigned int irq_deferred_error_count;
+#endif
+#ifdef CONFIG_X86_HV_CALLBACK_VECTOR
+ unsigned int irq_hv_callback_count;
+#endif
+#if IS_ENABLED(CONFIG_HYPERV)
+ unsigned int irq_hv_reenlightenment_count;
+ unsigned int hyperv_stimer0_count;
+#endif
} ____cacheline_aligned irq_cpustat_t;
DECLARE_PER_CPU_SHARED_ALIGNED(irq_cpustat_t, irq_stat);
-/* We can have at most NR_VECTORS irqs routed to a cpu at a time */
-#define MAX_HARDIRQS_PER_CPU NR_VECTORS
-
#define __ARCH_IRQ_STAT
-#define inc_irq_stat(member) percpu_inc(irq_stat.member)
-
-#define local_softirq_pending() percpu_read(irq_stat.__softirq_pending)
-
-#define __ARCH_SET_SOFTIRQ_PENDING
-
-#define set_softirq_pending(x) percpu_write(irq_stat.__softirq_pending, (x))
-#define or_softirq_pending(x) percpu_or(irq_stat.__softirq_pending, (x))
+#define inc_irq_stat(member) this_cpu_inc(irq_stat.member)
extern void ack_bad_irq(unsigned int irq);
@@ -52,4 +60,25 @@ extern u64 arch_irq_stat_cpu(unsigned int cpu);
extern u64 arch_irq_stat(void);
#define arch_irq_stat arch_irq_stat
+#define local_softirq_pending_ref pcpu_hot.softirq_pending
+
+#if IS_ENABLED(CONFIG_KVM_INTEL)
+static inline void kvm_set_cpu_l1tf_flush_l1d(void)
+{
+ __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 1);
+}
+
+static __always_inline void kvm_clear_cpu_l1tf_flush_l1d(void)
+{
+ __this_cpu_write(irq_stat.kvm_cpu_l1tf_flush_l1d, 0);
+}
+
+static __always_inline bool kvm_get_cpu_l1tf_flush_l1d(void)
+{
+ return __this_cpu_read(irq_stat.kvm_cpu_l1tf_flush_l1d);
+}
+#else /* !IS_ENABLED(CONFIG_KVM_INTEL) */
+static inline void kvm_set_cpu_l1tf_flush_l1d(void) { }
+#endif /* IS_ENABLED(CONFIG_KVM_INTEL) */
+
#endif /* _ASM_X86_HARDIRQ_H */
diff --git a/arch/x86/include/asm/highmem.h b/arch/x86/include/asm/highmem.h
index 3bd04022fd0c..731ee7cc40a5 100644
--- a/arch/x86/include/asm/highmem.h
+++ b/arch/x86/include/asm/highmem.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* highmem.h: virtual kernel memory mappings for high memory
*
@@ -22,10 +23,10 @@
#include <linux/interrupt.h>
#include <linux/threads.h>
-#include <asm/kmap_types.h>
#include <asm/tlbflush.h>
#include <asm/paravirt.h>
#include <asm/fixmap.h>
+#include <asm/pgtable_areas.h>
/* declarations for highmem.c */
extern unsigned long highstart_pfn, highend_pfn;
@@ -38,36 +39,35 @@ extern unsigned long highstart_pfn, highend_pfn;
/*
* Ordering is:
*
- * FIXADDR_TOP
- * fixed_addresses
- * FIXADDR_START
- * temp fixed addresses
- * FIXADDR_BOOT_START
- * Persistent kmap area
- * PKMAP_BASE
- * VMALLOC_END
- * Vmalloc area
- * VMALLOC_START
- * high_memory
+ * high memory on: high_memory off:
+ * FIXADDR_TOP FIXADDR_TOP
+ * fixed addresses fixed addresses
+ * FIXADDR_START FIXADDR_START
+ * temp fixed addresses/persistent kmap area VMALLOC_END
+ * PKMAP_BASE temp fixed addresses/vmalloc area
+ * VMALLOC_END VMALLOC_START
+ * vmalloc area high_memory
+ * VMALLOC_START
+ * high_memory
+ *
+ * The temp fixed area is only used during boot for early_ioremap(), and
+ * it is unused when the ioremap() is functional. vmalloc/pkmap area become
+ * available after early boot so the temp fixed area is available for re-use.
*/
#define LAST_PKMAP_MASK (LAST_PKMAP-1)
#define PKMAP_NR(virt) ((virt-PKMAP_BASE) >> PAGE_SHIFT)
#define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT))
-extern void *kmap_high(struct page *page);
-extern void kunmap_high(struct page *page);
-
-void *kmap(struct page *page);
-void kunmap(struct page *page);
+#define flush_cache_kmaps() do { } while (0)
-void *kmap_atomic_prot(struct page *page, pgprot_t prot);
-void *__kmap_atomic(struct page *page);
-void __kunmap_atomic(void *kvaddr);
-void *kmap_atomic_pfn(unsigned long pfn);
-void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
-struct page *kmap_atomic_to_page(void *ptr);
+#define arch_kmap_local_post_map(vaddr, pteval) \
+ arch_flush_lazy_mmu_mode()
-#define flush_cache_kmaps() do { } while (0)
+#define arch_kmap_local_post_unmap(vaddr) \
+ do { \
+ flush_tlb_one_kernel((vaddr)); \
+ arch_flush_lazy_mmu_mode(); \
+ } while (0)
extern void add_highpages_with_active_regions(int nid, unsigned long start_pfn,
unsigned long end_pfn);
diff --git a/arch/x86/include/asm/hpet.h b/arch/x86/include/asm/hpet.h
index 2c392d663dce..ab9f3dd87c80 100644
--- a/arch/x86/include/asm/hpet.h
+++ b/arch/x86/include/asm/hpet.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_HPET_H
#define _ASM_X86_HPET_H
@@ -35,8 +36,6 @@
#define HPET_ID_NUMBER_SHIFT 8
#define HPET_ID_VENDOR_SHIFT 16
-#define HPET_ID_VENDOR_8086 0x8086
-
#define HPET_CFG_ENABLE 0x001
#define HPET_CFG_LEGACY 0x002
#define HPET_LEGACY_8254 2
@@ -65,31 +64,16 @@
/* hpet memory map physical address */
extern unsigned long hpet_address;
extern unsigned long force_hpet_address;
+extern bool boot_hpet_disable;
extern u8 hpet_blockid;
-extern int hpet_force_user;
-extern u8 hpet_msi_disable;
+extern bool hpet_force_user;
+extern bool hpet_msi_disable;
extern int is_hpet_enabled(void);
extern int hpet_enable(void);
extern void hpet_disable(void);
extern unsigned int hpet_readl(unsigned int a);
extern void force_hpet_resume(void);
-struct irq_data;
-extern void hpet_msi_unmask(struct irq_data *data);
-extern void hpet_msi_mask(struct irq_data *data);
-struct hpet_dev;
-extern void hpet_msi_write(struct hpet_dev *hdev, struct msi_msg *msg);
-extern void hpet_msi_read(struct hpet_dev *hdev, struct msi_msg *msg);
-
-#ifdef CONFIG_PCI_MSI
-extern int arch_setup_hpet_msi(unsigned int irq, unsigned int id);
-#else
-static inline int arch_setup_hpet_msi(unsigned int irq, unsigned int id)
-{
- return -EINVAL;
-}
-#endif
-
#ifdef CONFIG_HPET_EMULATE_RTC
#include <linux/interrupt.h>
@@ -113,6 +97,7 @@ extern void hpet_unregister_irq_handler(rtc_irq_handler handler);
static inline int hpet_enable(void) { return 0; }
static inline int is_hpet_enabled(void) { return 0; }
#define hpet_readl(a) 0
+#define default_setup_hpet_msi NULL
#endif
#endif /* _ASM_X86_HPET_H */
diff --git a/arch/x86/include/asm/hugetlb.h b/arch/x86/include/asm/hugetlb.h
index 439a9acc132d..1721b1aadeb1 100644
--- a/arch/x86/include/asm/hugetlb.h
+++ b/arch/x86/include/asm/hugetlb.h
@@ -1,93 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_HUGETLB_H
#define _ASM_X86_HUGETLB_H
#include <asm/page.h>
+#include <asm-generic/hugetlb.h>
-
-static inline int is_hugepage_only_range(struct mm_struct *mm,
- unsigned long addr,
- unsigned long len) {
- return 0;
-}
-
-/*
- * If the arch doesn't supply something else, assume that hugepage
- * size aligned regions are ok without further preparation.
- */
-static inline int prepare_hugepage_range(struct file *file,
- unsigned long addr, unsigned long len)
-{
- struct hstate *h = hstate_file(file);
- if (len & ~huge_page_mask(h))
- return -EINVAL;
- if (addr & ~huge_page_mask(h))
- return -EINVAL;
- return 0;
-}
-
-static inline void hugetlb_prefault_arch_hook(struct mm_struct *mm) {
-}
-
-static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
- unsigned long addr, unsigned long end,
- unsigned long floor,
- unsigned long ceiling)
-{
- free_pgd_range(tlb, addr, end, floor, ceiling);
-}
-
-static inline void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
-{
- set_pte_at(mm, addr, ptep, pte);
-}
-
-static inline pte_t huge_ptep_get_and_clear(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep)
-{
- return ptep_get_and_clear(mm, addr, ptep);
-}
-
-static inline void huge_ptep_clear_flush(struct vm_area_struct *vma,
- unsigned long addr, pte_t *ptep)
-{
-}
-
-static inline int huge_pte_none(pte_t pte)
-{
- return pte_none(pte);
-}
-
-static inline pte_t huge_pte_wrprotect(pte_t pte)
-{
- return pte_wrprotect(pte);
-}
-
-static inline void huge_ptep_set_wrprotect(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep)
-{
- ptep_set_wrprotect(mm, addr, ptep);
-}
-
-static inline int huge_ptep_set_access_flags(struct vm_area_struct *vma,
- unsigned long addr, pte_t *ptep,
- pte_t pte, int dirty)
-{
- return ptep_set_access_flags(vma, addr, ptep, pte, dirty);
-}
-
-static inline pte_t huge_ptep_get(pte_t *ptep)
-{
- return *ptep;
-}
-
-static inline int arch_prepare_hugepage(struct page *page)
-{
- return 0;
-}
-
-static inline void arch_release_hugepage(struct page *page)
-{
-}
+#define hugepages_supported() boot_cpu_has(X86_FEATURE_PSE)
#endif /* _ASM_X86_HUGETLB_H */
diff --git a/arch/x86/include/asm/hw_breakpoint.h b/arch/x86/include/asm/hw_breakpoint.h
index 824ca07860d0..0bc931cd0698 100644
--- a/arch/x86/include/asm/hw_breakpoint.h
+++ b/arch/x86/include/asm/hw_breakpoint.h
@@ -1,7 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _I386_HW_BREAKPOINT_H
#define _I386_HW_BREAKPOINT_H
-#ifdef __KERNEL__
+#include <uapi/asm/hw_breakpoint.h>
+
#define __ARCH_HW_BREAKPOINT_H
/*
@@ -11,6 +13,7 @@
*/
struct arch_hw_breakpoint {
unsigned long address;
+ unsigned long mask;
u8 len;
u8 type;
};
@@ -41,16 +44,16 @@ struct arch_hw_breakpoint {
/* Total number of available HW breakpoint registers */
#define HBP_NUM 4
-static inline int hw_breakpoint_slots(int type)
-{
- return HBP_NUM;
-}
+#define hw_breakpoint_slots(type) (HBP_NUM)
+struct perf_event_attr;
struct perf_event;
struct pmu;
-extern int arch_check_bp_in_kernelspace(struct perf_event *bp);
-extern int arch_validate_hwbkpt_settings(struct perf_event *bp);
+extern int arch_check_bp_in_kernelspace(struct arch_hw_breakpoint *hw);
+extern int hw_breakpoint_arch_parse(struct perf_event *bp,
+ const struct perf_event_attr *attr,
+ struct arch_hw_breakpoint *hw);
extern int hw_breakpoint_exceptions_notify(struct notifier_block *unused,
unsigned long val, void *data);
@@ -71,6 +74,4 @@ extern int arch_bp_generic_fields(int x86_len, int x86_type,
extern struct pmu perf_ops_bp;
-#endif /* __KERNEL__ */
#endif /* _I386_HW_BREAKPOINT_H */
-
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index bb9efe8706e2..d465ece58151 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_HW_IRQ_H
#define _ASM_X86_HW_IRQ_H
@@ -15,168 +16,119 @@
#include <asm/irq_vectors.h>
+#define IRQ_MATRIX_BITS NR_VECTORS
+
#ifndef __ASSEMBLY__
#include <linux/percpu.h>
#include <linux/profile.h>
#include <linux/smp.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/irq.h>
#include <asm/sections.h>
-/* Interrupt handlers registered during init_IRQ */
-extern void apic_timer_interrupt(void);
-extern void x86_platform_ipi(void);
-extern void error_interrupt(void);
-extern void irq_work_interrupt(void);
-
-extern void spurious_interrupt(void);
-extern void thermal_interrupt(void);
-extern void reschedule_interrupt(void);
-extern void mce_self_interrupt(void);
-
-extern void invalidate_interrupt(void);
-extern void invalidate_interrupt0(void);
-extern void invalidate_interrupt1(void);
-extern void invalidate_interrupt2(void);
-extern void invalidate_interrupt3(void);
-extern void invalidate_interrupt4(void);
-extern void invalidate_interrupt5(void);
-extern void invalidate_interrupt6(void);
-extern void invalidate_interrupt7(void);
-extern void invalidate_interrupt8(void);
-extern void invalidate_interrupt9(void);
-extern void invalidate_interrupt10(void);
-extern void invalidate_interrupt11(void);
-extern void invalidate_interrupt12(void);
-extern void invalidate_interrupt13(void);
-extern void invalidate_interrupt14(void);
-extern void invalidate_interrupt15(void);
-extern void invalidate_interrupt16(void);
-extern void invalidate_interrupt17(void);
-extern void invalidate_interrupt18(void);
-extern void invalidate_interrupt19(void);
-extern void invalidate_interrupt20(void);
-extern void invalidate_interrupt21(void);
-extern void invalidate_interrupt22(void);
-extern void invalidate_interrupt23(void);
-extern void invalidate_interrupt24(void);
-extern void invalidate_interrupt25(void);
-extern void invalidate_interrupt26(void);
-extern void invalidate_interrupt27(void);
-extern void invalidate_interrupt28(void);
-extern void invalidate_interrupt29(void);
-extern void invalidate_interrupt30(void);
-extern void invalidate_interrupt31(void);
-
-extern void irq_move_cleanup_interrupt(void);
-extern void reboot_interrupt(void);
-extern void threshold_interrupt(void);
-
-extern void call_function_interrupt(void);
-extern void call_function_single_interrupt(void);
-
-/* IOAPIC */
-#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1<<(x)) & io_apic_irqs))
-extern unsigned long io_apic_irqs;
-
-extern void init_VISWS_APIC_irqs(void);
-extern void setup_IO_APIC(void);
-extern void disable_IO_APIC(void);
-
-struct io_apic_irq_attr {
- int ioapic;
- int ioapic_pin;
- int trigger;
- int polarity;
+#ifdef CONFIG_X86_LOCAL_APIC
+struct irq_data;
+struct pci_dev;
+struct msi_desc;
+
+enum irq_alloc_type {
+ X86_IRQ_ALLOC_TYPE_IOAPIC = 1,
+ X86_IRQ_ALLOC_TYPE_HPET,
+ X86_IRQ_ALLOC_TYPE_PCI_MSI,
+ X86_IRQ_ALLOC_TYPE_PCI_MSIX,
+ X86_IRQ_ALLOC_TYPE_DMAR,
+ X86_IRQ_ALLOC_TYPE_AMDVI,
+ X86_IRQ_ALLOC_TYPE_UV,
};
-static inline void set_io_apic_irq_attr(struct io_apic_irq_attr *irq_attr,
- int ioapic, int ioapic_pin,
- int trigger, int polarity)
-{
- irq_attr->ioapic = ioapic;
- irq_attr->ioapic_pin = ioapic_pin;
- irq_attr->trigger = trigger;
- irq_attr->polarity = polarity;
-}
-
-struct irq_2_iommu {
- struct intel_iommu *iommu;
- u16 irte_index;
- u16 sub_handle;
- u8 irte_mask;
+struct ioapic_alloc_info {
+ int pin;
+ int node;
+ u32 is_level : 1;
+ u32 active_low : 1;
+ u32 valid : 1;
};
-/*
- * This is performance-critical, we want to do it O(1)
+struct uv_alloc_info {
+ int limit;
+ int blade;
+ unsigned long offset;
+ char *name;
+
+};
+
+/**
+ * irq_alloc_info - X86 specific interrupt allocation info
+ * @type: X86 specific allocation type
+ * @flags: Flags for allocation tweaks
+ * @devid: Device ID for allocations
+ * @hwirq: Associated hw interrupt number in the domain
+ * @mask: CPU mask for vector allocation
+ * @desc: Pointer to msi descriptor
+ * @data: Allocation specific data
*
- * Most irqs are mapped 1:1 with pins.
- */
+ * @ioapic: IOAPIC specific allocation data
+ * @uv: UV specific allocation data
+*/
+struct irq_alloc_info {
+ enum irq_alloc_type type;
+ u32 flags;
+ u32 devid;
+ irq_hw_number_t hwirq;
+ const struct cpumask *mask;
+ struct msi_desc *desc;
+ void *data;
+
+ union {
+ struct ioapic_alloc_info ioapic;
+ struct uv_alloc_info uv;
+ };
+};
+
struct irq_cfg {
- struct irq_pin_list *irq_2_pin;
- cpumask_var_t domain;
- cpumask_var_t old_domain;
- u8 vector;
- u8 move_in_progress : 1;
-#ifdef CONFIG_INTR_REMAP
- struct irq_2_iommu irq_2_iommu;
-#endif
+ unsigned int dest_apicid;
+ unsigned int vector;
};
-extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
+extern struct irq_cfg *irq_cfg(unsigned int irq);
+extern struct irq_cfg *irqd_cfg(struct irq_data *irq_data);
+extern void lock_vector_lock(void);
+extern void unlock_vector_lock(void);
+#ifdef CONFIG_SMP
extern void send_cleanup_vector(struct irq_cfg *);
+extern void irq_complete_move(struct irq_cfg *cfg);
+#else
+static inline void send_cleanup_vector(struct irq_cfg *c) { }
+static inline void irq_complete_move(struct irq_cfg *c) { }
+#endif
-struct irq_data;
-int __ioapic_set_affinity(struct irq_data *, const struct cpumask *,
- unsigned int *dest_id);
-extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr);
-extern void setup_ioapic_dest(void);
-
-extern void enable_IO_APIC(void);
+extern void apic_ack_edge(struct irq_data *data);
+#else /* CONFIG_X86_LOCAL_APIC */
+static inline void lock_vector_lock(void) {}
+static inline void unlock_vector_lock(void) {}
+#endif /* CONFIG_X86_LOCAL_APIC */
/* Statistics */
extern atomic_t irq_err_count;
extern atomic_t irq_mis_count;
-/* EISA */
-extern void eisa_set_level_irq(unsigned int irq);
+extern void elcr_set_level_irq(unsigned int irq);
-/* SMP */
-extern void smp_apic_timer_interrupt(struct pt_regs *);
-extern void smp_spurious_interrupt(struct pt_regs *);
-extern void smp_x86_platform_ipi(struct pt_regs *);
-extern void smp_error_interrupt(struct pt_regs *);
-#ifdef CONFIG_X86_IO_APIC
-extern asmlinkage void smp_irq_move_cleanup_interrupt(void);
-#endif
-#ifdef CONFIG_SMP
-extern void smp_reschedule_interrupt(struct pt_regs *);
-extern void smp_call_function_interrupt(struct pt_regs *);
-extern void smp_call_function_single_interrupt(struct pt_regs *);
-#ifdef CONFIG_X86_32
-extern void smp_invalidate_interrupt(struct pt_regs *);
-#else
-extern asmlinkage void smp_invalidate_interrupt(struct pt_regs *);
-#endif
+extern char irq_entries_start[];
+#ifdef CONFIG_TRACING
+#define trace_irq_entries_start irq_entries_start
#endif
-extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
+extern char spurious_entries_start[];
-typedef int vector_irq_t[NR_VECTORS];
-DECLARE_PER_CPU(vector_irq_t, vector_irq);
-extern void setup_vector_irq(int cpu);
+#define VECTOR_UNUSED NULL
+#define VECTOR_SHUTDOWN ((void *)-1L)
+#define VECTOR_RETRIGGERED ((void *)-2L)
-#ifdef CONFIG_X86_IO_APIC
-extern void lock_vector_lock(void);
-extern void unlock_vector_lock(void);
-extern void __setup_vector_irq(int cpu);
-#else
-static inline void lock_vector_lock(void) {}
-static inline void unlock_vector_lock(void) {}
-static inline void __setup_vector_irq(int cpu) {}
-#endif
+typedef struct irq_desc* vector_irq_t[NR_VECTORS];
+DECLARE_PER_CPU(vector_irq_t, vector_irq);
#endif /* !ASSEMBLY_ */
diff --git a/arch/x86/include/asm/hypertransport.h b/arch/x86/include/asm/hypertransport.h
deleted file mode 100644
index 334b1a885d9c..000000000000
--- a/arch/x86/include/asm/hypertransport.h
+++ /dev/null
@@ -1,45 +0,0 @@
-#ifndef _ASM_X86_HYPERTRANSPORT_H
-#define _ASM_X86_HYPERTRANSPORT_H
-
-/*
- * Constants for x86 Hypertransport Interrupts.
- */
-
-#define HT_IRQ_LOW_BASE 0xf8000000
-
-#define HT_IRQ_LOW_VECTOR_SHIFT 16
-#define HT_IRQ_LOW_VECTOR_MASK 0x00ff0000
-#define HT_IRQ_LOW_VECTOR(v) \
- (((v) << HT_IRQ_LOW_VECTOR_SHIFT) & HT_IRQ_LOW_VECTOR_MASK)
-
-#define HT_IRQ_LOW_DEST_ID_SHIFT 8
-#define HT_IRQ_LOW_DEST_ID_MASK 0x0000ff00
-#define HT_IRQ_LOW_DEST_ID(v) \
- (((v) << HT_IRQ_LOW_DEST_ID_SHIFT) & HT_IRQ_LOW_DEST_ID_MASK)
-
-#define HT_IRQ_LOW_DM_PHYSICAL 0x0000000
-#define HT_IRQ_LOW_DM_LOGICAL 0x0000040
-
-#define HT_IRQ_LOW_RQEOI_EDGE 0x0000000
-#define HT_IRQ_LOW_RQEOI_LEVEL 0x0000020
-
-
-#define HT_IRQ_LOW_MT_FIXED 0x0000000
-#define HT_IRQ_LOW_MT_ARBITRATED 0x0000004
-#define HT_IRQ_LOW_MT_SMI 0x0000008
-#define HT_IRQ_LOW_MT_NMI 0x000000c
-#define HT_IRQ_LOW_MT_INIT 0x0000010
-#define HT_IRQ_LOW_MT_STARTUP 0x0000014
-#define HT_IRQ_LOW_MT_EXTINT 0x0000018
-#define HT_IRQ_LOW_MT_LINT1 0x000008c
-#define HT_IRQ_LOW_MT_LINT0 0x0000098
-
-#define HT_IRQ_LOW_IRQ_MASKED 0x0000001
-
-
-#define HT_IRQ_HIGH_DEST_ID_SHIFT 0
-#define HT_IRQ_HIGH_DEST_ID_MASK 0x00ffffff
-#define HT_IRQ_HIGH_DEST_ID(v) \
- ((((v) >> 8) << HT_IRQ_HIGH_DEST_ID_SHIFT) & HT_IRQ_HIGH_DEST_ID_MASK)
-
-#endif /* _ASM_X86_HYPERTRANSPORT_H */
diff --git a/arch/x86/include/asm/hyperv-tlfs.h b/arch/x86/include/asm/hyperv-tlfs.h
new file mode 100644
index 000000000000..cea95dcd27c2
--- /dev/null
+++ b/arch/x86/include/asm/hyperv-tlfs.h
@@ -0,0 +1,796 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * This file contains definitions from Hyper-V Hypervisor Top-Level Functional
+ * Specification (TLFS):
+ * https://docs.microsoft.com/en-us/virtualization/hyper-v-on-windows/reference/tlfs
+ */
+
+#ifndef _ASM_X86_HYPERV_TLFS_H
+#define _ASM_X86_HYPERV_TLFS_H
+
+#include <linux/types.h>
+#include <asm/page.h>
+/*
+ * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
+ * is set by CPUID(HvCpuIdFunctionVersionAndFeatures).
+ */
+#define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS 0x40000000
+#define HYPERV_CPUID_INTERFACE 0x40000001
+#define HYPERV_CPUID_VERSION 0x40000002
+#define HYPERV_CPUID_FEATURES 0x40000003
+#define HYPERV_CPUID_ENLIGHTMENT_INFO 0x40000004
+#define HYPERV_CPUID_IMPLEMENT_LIMITS 0x40000005
+#define HYPERV_CPUID_CPU_MANAGEMENT_FEATURES 0x40000007
+#define HYPERV_CPUID_NESTED_FEATURES 0x4000000A
+#define HYPERV_CPUID_ISOLATION_CONFIG 0x4000000C
+
+#define HYPERV_CPUID_VIRT_STACK_INTERFACE 0x40000081
+#define HYPERV_VS_INTERFACE_EAX_SIGNATURE 0x31235356 /* "VS#1" */
+
+#define HYPERV_CPUID_VIRT_STACK_PROPERTIES 0x40000082
+/* Support for the extended IOAPIC RTE format */
+#define HYPERV_VS_PROPERTIES_EAX_EXTENDED_IOAPIC_RTE BIT(2)
+
+#define HYPERV_HYPERVISOR_PRESENT_BIT 0x80000000
+#define HYPERV_CPUID_MIN 0x40000005
+#define HYPERV_CPUID_MAX 0x4000ffff
+
+/*
+ * Group D Features. The bit assignments are custom to each architecture.
+ * On x86/x64 these are HYPERV_CPUID_FEATURES.EDX bits.
+ */
+/* The MWAIT instruction is available (per section MONITOR / MWAIT) */
+#define HV_X64_MWAIT_AVAILABLE BIT(0)
+/* Guest debugging support is available */
+#define HV_X64_GUEST_DEBUGGING_AVAILABLE BIT(1)
+/* Performance Monitor support is available*/
+#define HV_X64_PERF_MONITOR_AVAILABLE BIT(2)
+/* Support for physical CPU dynamic partitioning events is available*/
+#define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE BIT(3)
+/*
+ * Support for passing hypercall input parameter block via XMM
+ * registers is available
+ */
+#define HV_X64_HYPERCALL_XMM_INPUT_AVAILABLE BIT(4)
+/* Support for a virtual guest idle state is available */
+#define HV_X64_GUEST_IDLE_STATE_AVAILABLE BIT(5)
+/* Frequency MSRs available */
+#define HV_FEATURE_FREQUENCY_MSRS_AVAILABLE BIT(8)
+/* Crash MSR available */
+#define HV_FEATURE_GUEST_CRASH_MSR_AVAILABLE BIT(10)
+/* Support for debug MSRs available */
+#define HV_FEATURE_DEBUG_MSRS_AVAILABLE BIT(11)
+/* Support for extended gva ranges for flush hypercalls available */
+#define HV_FEATURE_EXT_GVA_RANGES_FLUSH BIT(14)
+/*
+ * Support for returning hypercall output block via XMM
+ * registers is available
+ */
+#define HV_X64_HYPERCALL_XMM_OUTPUT_AVAILABLE BIT(15)
+/* stimer Direct Mode is available */
+#define HV_STIMER_DIRECT_MODE_AVAILABLE BIT(19)
+
+/*
+ * Implementation recommendations. Indicates which behaviors the hypervisor
+ * recommends the OS implement for optimal performance.
+ * These are HYPERV_CPUID_ENLIGHTMENT_INFO.EAX bits.
+ */
+/*
+ * Recommend using hypercall for address space switches rather
+ * than MOV to CR3 instruction
+ */
+#define HV_X64_AS_SWITCH_RECOMMENDED BIT(0)
+/* Recommend using hypercall for local TLB flushes rather
+ * than INVLPG or MOV to CR3 instructions */
+#define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED BIT(1)
+/*
+ * Recommend using hypercall for remote TLB flushes rather
+ * than inter-processor interrupts
+ */
+#define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED BIT(2)
+/*
+ * Recommend using MSRs for accessing APIC registers
+ * EOI, ICR and TPR rather than their memory-mapped counterparts
+ */
+#define HV_X64_APIC_ACCESS_RECOMMENDED BIT(3)
+/* Recommend using the hypervisor-provided MSR to initiate a system RESET */
+#define HV_X64_SYSTEM_RESET_RECOMMENDED BIT(4)
+/*
+ * Recommend using relaxed timing for this partition. If used,
+ * the VM should disable any watchdog timeouts that rely on the
+ * timely delivery of external interrupts
+ */
+#define HV_X64_RELAXED_TIMING_RECOMMENDED BIT(5)
+
+/*
+ * Recommend not using Auto End-Of-Interrupt feature
+ */
+#define HV_DEPRECATING_AEOI_RECOMMENDED BIT(9)
+
+/*
+ * Recommend using cluster IPI hypercalls.
+ */
+#define HV_X64_CLUSTER_IPI_RECOMMENDED BIT(10)
+
+/* Recommend using the newer ExProcessorMasks interface */
+#define HV_X64_EX_PROCESSOR_MASKS_RECOMMENDED BIT(11)
+
+/* Indicates that the hypervisor is nested within a Hyper-V partition. */
+#define HV_X64_HYPERV_NESTED BIT(12)
+
+/* Recommend using enlightened VMCS */
+#define HV_X64_ENLIGHTENED_VMCS_RECOMMENDED BIT(14)
+
+/* Use hypercalls for MMIO config space access */
+#define HV_X64_USE_MMIO_HYPERCALLS BIT(21)
+
+/*
+ * CPU management features identification.
+ * These are HYPERV_CPUID_CPU_MANAGEMENT_FEATURES.EAX bits.
+ */
+#define HV_X64_START_LOGICAL_PROCESSOR BIT(0)
+#define HV_X64_CREATE_ROOT_VIRTUAL_PROCESSOR BIT(1)
+#define HV_X64_PERFORMANCE_COUNTER_SYNC BIT(2)
+#define HV_X64_RESERVED_IDENTITY_BIT BIT(31)
+
+/*
+ * Virtual processor will never share a physical core with another virtual
+ * processor, except for virtual processors that are reported as sibling SMT
+ * threads.
+ */
+#define HV_X64_NO_NONARCH_CORESHARING BIT(18)
+
+/* Nested features. These are HYPERV_CPUID_NESTED_FEATURES.EAX bits. */
+#define HV_X64_NESTED_DIRECT_FLUSH BIT(17)
+#define HV_X64_NESTED_GUEST_MAPPING_FLUSH BIT(18)
+#define HV_X64_NESTED_MSR_BITMAP BIT(19)
+
+/* Nested features #2. These are HYPERV_CPUID_NESTED_FEATURES.EBX bits. */
+#define HV_X64_NESTED_EVMCS1_PERF_GLOBAL_CTRL BIT(0)
+
+/*
+ * This is specific to AMD and specifies that enlightened TLB flush is
+ * supported. If guest opts in to this feature, ASID invalidations only
+ * flushes gva -> hpa mapping entries. To flush the TLB entries derived
+ * from NPT, hypercalls should be used (HvFlushGuestPhysicalAddressSpace
+ * or HvFlushGuestPhysicalAddressList).
+ */
+#define HV_X64_NESTED_ENLIGHTENED_TLB BIT(22)
+
+/* HYPERV_CPUID_ISOLATION_CONFIG.EAX bits. */
+#define HV_PARAVISOR_PRESENT BIT(0)
+
+/* HYPERV_CPUID_ISOLATION_CONFIG.EBX bits. */
+#define HV_ISOLATION_TYPE GENMASK(3, 0)
+#define HV_SHARED_GPA_BOUNDARY_ACTIVE BIT(5)
+#define HV_SHARED_GPA_BOUNDARY_BITS GENMASK(11, 6)
+
+enum hv_isolation_type {
+ HV_ISOLATION_TYPE_NONE = 0,
+ HV_ISOLATION_TYPE_VBS = 1,
+ HV_ISOLATION_TYPE_SNP = 2
+};
+
+/* Hyper-V specific model specific registers (MSRs) */
+
+/* MSR used to identify the guest OS. */
+#define HV_X64_MSR_GUEST_OS_ID 0x40000000
+
+/* MSR used to setup pages used to communicate with the hypervisor. */
+#define HV_X64_MSR_HYPERCALL 0x40000001
+
+/* MSR used to provide vcpu index */
+#define HV_REGISTER_VP_INDEX 0x40000002
+
+/* MSR used to reset the guest OS. */
+#define HV_X64_MSR_RESET 0x40000003
+
+/* MSR used to provide vcpu runtime in 100ns units */
+#define HV_X64_MSR_VP_RUNTIME 0x40000010
+
+/* MSR used to read the per-partition time reference counter */
+#define HV_REGISTER_TIME_REF_COUNT 0x40000020
+
+/* A partition's reference time stamp counter (TSC) page */
+#define HV_REGISTER_REFERENCE_TSC 0x40000021
+
+/* MSR used to retrieve the TSC frequency */
+#define HV_X64_MSR_TSC_FREQUENCY 0x40000022
+
+/* MSR used to retrieve the local APIC timer frequency */
+#define HV_X64_MSR_APIC_FREQUENCY 0x40000023
+
+/* Define the virtual APIC registers */
+#define HV_X64_MSR_EOI 0x40000070
+#define HV_X64_MSR_ICR 0x40000071
+#define HV_X64_MSR_TPR 0x40000072
+#define HV_X64_MSR_VP_ASSIST_PAGE 0x40000073
+
+/* Define synthetic interrupt controller model specific registers. */
+#define HV_REGISTER_SCONTROL 0x40000080
+#define HV_REGISTER_SVERSION 0x40000081
+#define HV_REGISTER_SIEFP 0x40000082
+#define HV_REGISTER_SIMP 0x40000083
+#define HV_REGISTER_EOM 0x40000084
+#define HV_REGISTER_SINT0 0x40000090
+#define HV_REGISTER_SINT1 0x40000091
+#define HV_REGISTER_SINT2 0x40000092
+#define HV_REGISTER_SINT3 0x40000093
+#define HV_REGISTER_SINT4 0x40000094
+#define HV_REGISTER_SINT5 0x40000095
+#define HV_REGISTER_SINT6 0x40000096
+#define HV_REGISTER_SINT7 0x40000097
+#define HV_REGISTER_SINT8 0x40000098
+#define HV_REGISTER_SINT9 0x40000099
+#define HV_REGISTER_SINT10 0x4000009A
+#define HV_REGISTER_SINT11 0x4000009B
+#define HV_REGISTER_SINT12 0x4000009C
+#define HV_REGISTER_SINT13 0x4000009D
+#define HV_REGISTER_SINT14 0x4000009E
+#define HV_REGISTER_SINT15 0x4000009F
+
+/*
+ * Define synthetic interrupt controller model specific registers for
+ * nested hypervisor.
+ */
+#define HV_REGISTER_NESTED_SCONTROL 0x40001080
+#define HV_REGISTER_NESTED_SVERSION 0x40001081
+#define HV_REGISTER_NESTED_SIEFP 0x40001082
+#define HV_REGISTER_NESTED_SIMP 0x40001083
+#define HV_REGISTER_NESTED_EOM 0x40001084
+#define HV_REGISTER_NESTED_SINT0 0x40001090
+
+/*
+ * Synthetic Timer MSRs. Four timers per vcpu.
+ */
+#define HV_REGISTER_STIMER0_CONFIG 0x400000B0
+#define HV_REGISTER_STIMER0_COUNT 0x400000B1
+#define HV_REGISTER_STIMER1_CONFIG 0x400000B2
+#define HV_REGISTER_STIMER1_COUNT 0x400000B3
+#define HV_REGISTER_STIMER2_CONFIG 0x400000B4
+#define HV_REGISTER_STIMER2_COUNT 0x400000B5
+#define HV_REGISTER_STIMER3_CONFIG 0x400000B6
+#define HV_REGISTER_STIMER3_COUNT 0x400000B7
+
+/* Hyper-V guest idle MSR */
+#define HV_X64_MSR_GUEST_IDLE 0x400000F0
+
+/* Hyper-V guest crash notification MSR's */
+#define HV_REGISTER_CRASH_P0 0x40000100
+#define HV_REGISTER_CRASH_P1 0x40000101
+#define HV_REGISTER_CRASH_P2 0x40000102
+#define HV_REGISTER_CRASH_P3 0x40000103
+#define HV_REGISTER_CRASH_P4 0x40000104
+#define HV_REGISTER_CRASH_CTL 0x40000105
+
+/* TSC emulation after migration */
+#define HV_X64_MSR_REENLIGHTENMENT_CONTROL 0x40000106
+#define HV_X64_MSR_TSC_EMULATION_CONTROL 0x40000107
+#define HV_X64_MSR_TSC_EMULATION_STATUS 0x40000108
+
+/* TSC invariant control */
+#define HV_X64_MSR_TSC_INVARIANT_CONTROL 0x40000118
+
+/* HV_X64_MSR_TSC_INVARIANT_CONTROL bits */
+#define HV_EXPOSE_INVARIANT_TSC BIT_ULL(0)
+
+/* Register name aliases for temporary compatibility */
+#define HV_X64_MSR_STIMER0_COUNT HV_REGISTER_STIMER0_COUNT
+#define HV_X64_MSR_STIMER0_CONFIG HV_REGISTER_STIMER0_CONFIG
+#define HV_X64_MSR_STIMER1_COUNT HV_REGISTER_STIMER1_COUNT
+#define HV_X64_MSR_STIMER1_CONFIG HV_REGISTER_STIMER1_CONFIG
+#define HV_X64_MSR_STIMER2_COUNT HV_REGISTER_STIMER2_COUNT
+#define HV_X64_MSR_STIMER2_CONFIG HV_REGISTER_STIMER2_CONFIG
+#define HV_X64_MSR_STIMER3_COUNT HV_REGISTER_STIMER3_COUNT
+#define HV_X64_MSR_STIMER3_CONFIG HV_REGISTER_STIMER3_CONFIG
+#define HV_X64_MSR_SCONTROL HV_REGISTER_SCONTROL
+#define HV_X64_MSR_SVERSION HV_REGISTER_SVERSION
+#define HV_X64_MSR_SIMP HV_REGISTER_SIMP
+#define HV_X64_MSR_SIEFP HV_REGISTER_SIEFP
+#define HV_X64_MSR_VP_INDEX HV_REGISTER_VP_INDEX
+#define HV_X64_MSR_EOM HV_REGISTER_EOM
+#define HV_X64_MSR_SINT0 HV_REGISTER_SINT0
+#define HV_X64_MSR_SINT15 HV_REGISTER_SINT15
+#define HV_X64_MSR_CRASH_P0 HV_REGISTER_CRASH_P0
+#define HV_X64_MSR_CRASH_P1 HV_REGISTER_CRASH_P1
+#define HV_X64_MSR_CRASH_P2 HV_REGISTER_CRASH_P2
+#define HV_X64_MSR_CRASH_P3 HV_REGISTER_CRASH_P3
+#define HV_X64_MSR_CRASH_P4 HV_REGISTER_CRASH_P4
+#define HV_X64_MSR_CRASH_CTL HV_REGISTER_CRASH_CTL
+#define HV_X64_MSR_TIME_REF_COUNT HV_REGISTER_TIME_REF_COUNT
+#define HV_X64_MSR_REFERENCE_TSC HV_REGISTER_REFERENCE_TSC
+
+/* Hyper-V memory host visibility */
+enum hv_mem_host_visibility {
+ VMBUS_PAGE_NOT_VISIBLE = 0,
+ VMBUS_PAGE_VISIBLE_READ_ONLY = 1,
+ VMBUS_PAGE_VISIBLE_READ_WRITE = 3
+};
+
+/* HvCallModifySparseGpaPageHostVisibility hypercall */
+#define HV_MAX_MODIFY_GPA_REP_COUNT ((PAGE_SIZE / sizeof(u64)) - 2)
+struct hv_gpa_range_for_visibility {
+ u64 partition_id;
+ u32 host_visibility:2;
+ u32 reserved0:30;
+ u32 reserved1;
+ u64 gpa_page_list[HV_MAX_MODIFY_GPA_REP_COUNT];
+} __packed;
+
+/*
+ * Declare the MSR used to setup pages used to communicate with the hypervisor.
+ */
+union hv_x64_msr_hypercall_contents {
+ u64 as_uint64;
+ struct {
+ u64 enable:1;
+ u64 reserved:11;
+ u64 guest_physical_address:52;
+ } __packed;
+};
+
+union hv_vp_assist_msr_contents {
+ u64 as_uint64;
+ struct {
+ u64 enable:1;
+ u64 reserved:11;
+ u64 pfn:52;
+ } __packed;
+};
+
+struct hv_reenlightenment_control {
+ __u64 vector:8;
+ __u64 reserved1:8;
+ __u64 enabled:1;
+ __u64 reserved2:15;
+ __u64 target_vp:32;
+} __packed;
+
+struct hv_tsc_emulation_control {
+ __u64 enabled:1;
+ __u64 reserved:63;
+} __packed;
+
+struct hv_tsc_emulation_status {
+ __u64 inprogress:1;
+ __u64 reserved:63;
+} __packed;
+
+#define HV_X64_MSR_HYPERCALL_ENABLE 0x00000001
+#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT 12
+#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_MASK \
+ (~((1ull << HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT) - 1))
+
+#define HV_X64_MSR_CRASH_PARAMS \
+ (1 + (HV_X64_MSR_CRASH_P4 - HV_X64_MSR_CRASH_P0))
+
+#define HV_IPI_LOW_VECTOR 0x10
+#define HV_IPI_HIGH_VECTOR 0xff
+
+#define HV_X64_MSR_VP_ASSIST_PAGE_ENABLE 0x00000001
+#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT 12
+#define HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_MASK \
+ (~((1ull << HV_X64_MSR_VP_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
+
+/* Hyper-V Enlightened VMCS version mask in nested features CPUID */
+#define HV_X64_ENLIGHTENED_VMCS_VERSION 0xff
+
+#define HV_X64_MSR_TSC_REFERENCE_ENABLE 0x00000001
+#define HV_X64_MSR_TSC_REFERENCE_ADDRESS_SHIFT 12
+
+/* Number of XMM registers used in hypercall input/output */
+#define HV_HYPERCALL_MAX_XMM_REGISTERS 6
+
+struct hv_nested_enlightenments_control {
+ struct {
+ __u32 directhypercall:1;
+ __u32 reserved:31;
+ } features;
+ struct {
+ __u32 inter_partition_comm:1;
+ __u32 reserved:31;
+ } hypercallControls;
+} __packed;
+
+/* Define virtual processor assist page structure. */
+struct hv_vp_assist_page {
+ __u32 apic_assist;
+ __u32 reserved1;
+ __u32 vtl_entry_reason;
+ __u32 vtl_reserved;
+ __u64 vtl_ret_x64rax;
+ __u64 vtl_ret_x64rcx;
+ struct hv_nested_enlightenments_control nested_control;
+ __u8 enlighten_vmentry;
+ __u8 reserved2[7];
+ __u64 current_nested_vmcs;
+ __u8 synthetic_time_unhalted_timer_expired;
+ __u8 reserved3[7];
+ __u8 virtualization_fault_information[40];
+ __u8 reserved4[8];
+ __u8 intercept_message[256];
+ __u8 vtl_ret_actions[256];
+} __packed;
+
+struct hv_enlightened_vmcs {
+ u32 revision_id;
+ u32 abort;
+
+ u16 host_es_selector;
+ u16 host_cs_selector;
+ u16 host_ss_selector;
+ u16 host_ds_selector;
+ u16 host_fs_selector;
+ u16 host_gs_selector;
+ u16 host_tr_selector;
+
+ u16 padding16_1;
+
+ u64 host_ia32_pat;
+ u64 host_ia32_efer;
+
+ u64 host_cr0;
+ u64 host_cr3;
+ u64 host_cr4;
+
+ u64 host_ia32_sysenter_esp;
+ u64 host_ia32_sysenter_eip;
+ u64 host_rip;
+ u32 host_ia32_sysenter_cs;
+
+ u32 pin_based_vm_exec_control;
+ u32 vm_exit_controls;
+ u32 secondary_vm_exec_control;
+
+ u64 io_bitmap_a;
+ u64 io_bitmap_b;
+ u64 msr_bitmap;
+
+ u16 guest_es_selector;
+ u16 guest_cs_selector;
+ u16 guest_ss_selector;
+ u16 guest_ds_selector;
+ u16 guest_fs_selector;
+ u16 guest_gs_selector;
+ u16 guest_ldtr_selector;
+ u16 guest_tr_selector;
+
+ u32 guest_es_limit;
+ u32 guest_cs_limit;
+ u32 guest_ss_limit;
+ u32 guest_ds_limit;
+ u32 guest_fs_limit;
+ u32 guest_gs_limit;
+ u32 guest_ldtr_limit;
+ u32 guest_tr_limit;
+ u32 guest_gdtr_limit;
+ u32 guest_idtr_limit;
+
+ u32 guest_es_ar_bytes;
+ u32 guest_cs_ar_bytes;
+ u32 guest_ss_ar_bytes;
+ u32 guest_ds_ar_bytes;
+ u32 guest_fs_ar_bytes;
+ u32 guest_gs_ar_bytes;
+ u32 guest_ldtr_ar_bytes;
+ u32 guest_tr_ar_bytes;
+
+ u64 guest_es_base;
+ u64 guest_cs_base;
+ u64 guest_ss_base;
+ u64 guest_ds_base;
+ u64 guest_fs_base;
+ u64 guest_gs_base;
+ u64 guest_ldtr_base;
+ u64 guest_tr_base;
+ u64 guest_gdtr_base;
+ u64 guest_idtr_base;
+
+ u64 padding64_1[3];
+
+ u64 vm_exit_msr_store_addr;
+ u64 vm_exit_msr_load_addr;
+ u64 vm_entry_msr_load_addr;
+
+ u64 cr3_target_value0;
+ u64 cr3_target_value1;
+ u64 cr3_target_value2;
+ u64 cr3_target_value3;
+
+ u32 page_fault_error_code_mask;
+ u32 page_fault_error_code_match;
+
+ u32 cr3_target_count;
+ u32 vm_exit_msr_store_count;
+ u32 vm_exit_msr_load_count;
+ u32 vm_entry_msr_load_count;
+
+ u64 tsc_offset;
+ u64 virtual_apic_page_addr;
+ u64 vmcs_link_pointer;
+
+ u64 guest_ia32_debugctl;
+ u64 guest_ia32_pat;
+ u64 guest_ia32_efer;
+
+ u64 guest_pdptr0;
+ u64 guest_pdptr1;
+ u64 guest_pdptr2;
+ u64 guest_pdptr3;
+
+ u64 guest_pending_dbg_exceptions;
+ u64 guest_sysenter_esp;
+ u64 guest_sysenter_eip;
+
+ u32 guest_activity_state;
+ u32 guest_sysenter_cs;
+
+ u64 cr0_guest_host_mask;
+ u64 cr4_guest_host_mask;
+ u64 cr0_read_shadow;
+ u64 cr4_read_shadow;
+ u64 guest_cr0;
+ u64 guest_cr3;
+ u64 guest_cr4;
+ u64 guest_dr7;
+
+ u64 host_fs_base;
+ u64 host_gs_base;
+ u64 host_tr_base;
+ u64 host_gdtr_base;
+ u64 host_idtr_base;
+ u64 host_rsp;
+
+ u64 ept_pointer;
+
+ u16 virtual_processor_id;
+ u16 padding16_2[3];
+
+ u64 padding64_2[5];
+ u64 guest_physical_address;
+
+ u32 vm_instruction_error;
+ u32 vm_exit_reason;
+ u32 vm_exit_intr_info;
+ u32 vm_exit_intr_error_code;
+ u32 idt_vectoring_info_field;
+ u32 idt_vectoring_error_code;
+ u32 vm_exit_instruction_len;
+ u32 vmx_instruction_info;
+
+ u64 exit_qualification;
+ u64 exit_io_instruction_ecx;
+ u64 exit_io_instruction_esi;
+ u64 exit_io_instruction_edi;
+ u64 exit_io_instruction_eip;
+
+ u64 guest_linear_address;
+ u64 guest_rsp;
+ u64 guest_rflags;
+
+ u32 guest_interruptibility_info;
+ u32 cpu_based_vm_exec_control;
+ u32 exception_bitmap;
+ u32 vm_entry_controls;
+ u32 vm_entry_intr_info_field;
+ u32 vm_entry_exception_error_code;
+ u32 vm_entry_instruction_len;
+ u32 tpr_threshold;
+
+ u64 guest_rip;
+
+ u32 hv_clean_fields;
+ u32 padding32_1;
+ u32 hv_synthetic_controls;
+ struct {
+ u32 nested_flush_hypercall:1;
+ u32 msr_bitmap:1;
+ u32 reserved:30;
+ } __packed hv_enlightenments_control;
+ u32 hv_vp_id;
+ u32 padding32_2;
+ u64 hv_vm_id;
+ u64 partition_assist_page;
+ u64 padding64_4[4];
+ u64 guest_bndcfgs;
+ u64 guest_ia32_perf_global_ctrl;
+ u64 guest_ia32_s_cet;
+ u64 guest_ssp;
+ u64 guest_ia32_int_ssp_table_addr;
+ u64 guest_ia32_lbr_ctl;
+ u64 padding64_5[2];
+ u64 xss_exit_bitmap;
+ u64 encls_exiting_bitmap;
+ u64 host_ia32_perf_global_ctrl;
+ u64 tsc_multiplier;
+ u64 host_ia32_s_cet;
+ u64 host_ssp;
+ u64 host_ia32_int_ssp_table_addr;
+ u64 padding64_6;
+} __packed;
+
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_NONE 0
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_IO_BITMAP BIT(0)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_MSR_BITMAP BIT(1)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP2 BIT(2)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_GRP1 BIT(3)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_PROC BIT(4)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EVENT BIT(5)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_ENTRY BIT(6)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_EXCPN BIT(7)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CRDR BIT(8)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_CONTROL_XLAT BIT(9)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_BASIC BIT(10)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP1 BIT(11)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_GUEST_GRP2 BIT(12)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_POINTER BIT(13)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_HOST_GRP1 BIT(14)
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ENLIGHTENMENTSCONTROL BIT(15)
+
+#define HV_VMX_ENLIGHTENED_CLEAN_FIELD_ALL 0xFFFF
+
+/*
+ * Note, Hyper-V isn't actually stealing bit 28 from Intel, just abusing it by
+ * pairing it with architecturally impossible exit reasons. Bit 28 is set only
+ * on SMI exits to a SMI transfer monitor (STM) and if and only if a MTF VM-Exit
+ * is pending. I.e. it will never be set by hardware for non-SMI exits (there
+ * are only three), nor will it ever be set unless the VMM is an STM.
+ */
+#define HV_VMX_SYNTHETIC_EXIT_REASON_TRAP_AFTER_FLUSH 0x10000031
+
+/*
+ * Hyper-V uses the software reserved 32 bytes in VMCB control area to expose
+ * SVM enlightenments to guests.
+ */
+struct hv_vmcb_enlightenments {
+ struct __packed hv_enlightenments_control {
+ u32 nested_flush_hypercall:1;
+ u32 msr_bitmap:1;
+ u32 enlightened_npt_tlb: 1;
+ u32 reserved:29;
+ } __packed hv_enlightenments_control;
+ u32 hv_vp_id;
+ u64 hv_vm_id;
+ u64 partition_assist_page;
+ u64 reserved;
+} __packed;
+
+/*
+ * Hyper-V uses the software reserved clean bit in VMCB.
+ */
+#define HV_VMCB_NESTED_ENLIGHTENMENTS 31
+
+/* Synthetic VM-Exit */
+#define HV_SVM_EXITCODE_ENL 0xf0000000
+#define HV_SVM_ENL_EXITCODE_TRAP_AFTER_FLUSH (1)
+
+struct hv_partition_assist_pg {
+ u32 tlb_lock_count;
+};
+
+enum hv_interrupt_type {
+ HV_X64_INTERRUPT_TYPE_FIXED = 0x0000,
+ HV_X64_INTERRUPT_TYPE_LOWESTPRIORITY = 0x0001,
+ HV_X64_INTERRUPT_TYPE_SMI = 0x0002,
+ HV_X64_INTERRUPT_TYPE_REMOTEREAD = 0x0003,
+ HV_X64_INTERRUPT_TYPE_NMI = 0x0004,
+ HV_X64_INTERRUPT_TYPE_INIT = 0x0005,
+ HV_X64_INTERRUPT_TYPE_SIPI = 0x0006,
+ HV_X64_INTERRUPT_TYPE_EXTINT = 0x0007,
+ HV_X64_INTERRUPT_TYPE_LOCALINT0 = 0x0008,
+ HV_X64_INTERRUPT_TYPE_LOCALINT1 = 0x0009,
+ HV_X64_INTERRUPT_TYPE_MAXIMUM = 0x000A,
+};
+
+union hv_msi_address_register {
+ u32 as_uint32;
+ struct {
+ u32 reserved1:2;
+ u32 destination_mode:1;
+ u32 redirection_hint:1;
+ u32 reserved2:8;
+ u32 destination_id:8;
+ u32 msi_base:12;
+ };
+} __packed;
+
+union hv_msi_data_register {
+ u32 as_uint32;
+ struct {
+ u32 vector:8;
+ u32 delivery_mode:3;
+ u32 reserved1:3;
+ u32 level_assert:1;
+ u32 trigger_mode:1;
+ u32 reserved2:16;
+ };
+} __packed;
+
+/* HvRetargetDeviceInterrupt hypercall */
+union hv_msi_entry {
+ u64 as_uint64;
+ struct {
+ union hv_msi_address_register address;
+ union hv_msi_data_register data;
+ } __packed;
+};
+
+struct hv_x64_segment_register {
+ u64 base;
+ u32 limit;
+ u16 selector;
+ union {
+ struct {
+ u16 segment_type : 4;
+ u16 non_system_segment : 1;
+ u16 descriptor_privilege_level : 2;
+ u16 present : 1;
+ u16 reserved : 4;
+ u16 available : 1;
+ u16 _long : 1;
+ u16 _default : 1;
+ u16 granularity : 1;
+ } __packed;
+ u16 attributes;
+ };
+} __packed;
+
+struct hv_x64_table_register {
+ u16 pad[3];
+ u16 limit;
+ u64 base;
+} __packed;
+
+struct hv_init_vp_context {
+ u64 rip;
+ u64 rsp;
+ u64 rflags;
+
+ struct hv_x64_segment_register cs;
+ struct hv_x64_segment_register ds;
+ struct hv_x64_segment_register es;
+ struct hv_x64_segment_register fs;
+ struct hv_x64_segment_register gs;
+ struct hv_x64_segment_register ss;
+ struct hv_x64_segment_register tr;
+ struct hv_x64_segment_register ldtr;
+
+ struct hv_x64_table_register idtr;
+ struct hv_x64_table_register gdtr;
+
+ u64 efer;
+ u64 cr0;
+ u64 cr3;
+ u64 cr4;
+ u64 msr_cr_pat;
+} __packed;
+
+union hv_input_vtl {
+ u8 as_uint8;
+ struct {
+ u8 target_vtl: 4;
+ u8 use_target_vtl: 1;
+ u8 reserved_z: 3;
+ };
+} __packed;
+
+struct hv_enable_vp_vtl {
+ u64 partition_id;
+ u32 vp_index;
+ union hv_input_vtl target_vtl;
+ u8 mbz0;
+ u16 mbz1;
+ struct hv_init_vp_context vp_context;
+} __packed;
+
+struct hv_get_vp_from_apic_id_in {
+ u64 partition_id;
+ union hv_input_vtl target_vtl;
+ u8 res[7];
+ u32 apic_ids[];
+} __packed;
+
+#include <asm-generic/hyperv-tlfs.h>
+
+#endif
diff --git a/arch/x86/include/asm/hyperv.h b/arch/x86/include/asm/hyperv.h
deleted file mode 100644
index 5df477ac3af7..000000000000
--- a/arch/x86/include/asm/hyperv.h
+++ /dev/null
@@ -1,193 +0,0 @@
-#ifndef _ASM_X86_HYPERV_H
-#define _ASM_X86_HYPERV_H
-
-#include <linux/types.h>
-
-/*
- * The below CPUID leaves are present if VersionAndFeatures.HypervisorPresent
- * is set by CPUID(HvCpuIdFunctionVersionAndFeatures).
- */
-#define HYPERV_CPUID_VENDOR_AND_MAX_FUNCTIONS 0x40000000
-#define HYPERV_CPUID_INTERFACE 0x40000001
-#define HYPERV_CPUID_VERSION 0x40000002
-#define HYPERV_CPUID_FEATURES 0x40000003
-#define HYPERV_CPUID_ENLIGHTMENT_INFO 0x40000004
-#define HYPERV_CPUID_IMPLEMENT_LIMITS 0x40000005
-
-#define HYPERV_HYPERVISOR_PRESENT_BIT 0x80000000
-#define HYPERV_CPUID_MIN 0x40000005
-#define HYPERV_CPUID_MAX 0x4000ffff
-
-/*
- * Feature identification. EAX indicates which features are available
- * to the partition based upon the current partition privileges.
- */
-
-/* VP Runtime (HV_X64_MSR_VP_RUNTIME) available */
-#define HV_X64_MSR_VP_RUNTIME_AVAILABLE (1 << 0)
-/* Partition Reference Counter (HV_X64_MSR_TIME_REF_COUNT) available*/
-#define HV_X64_MSR_TIME_REF_COUNT_AVAILABLE (1 << 1)
-/*
- * Basic SynIC MSRs (HV_X64_MSR_SCONTROL through HV_X64_MSR_EOM
- * and HV_X64_MSR_SINT0 through HV_X64_MSR_SINT15) available
- */
-#define HV_X64_MSR_SYNIC_AVAILABLE (1 << 2)
-/*
- * Synthetic Timer MSRs (HV_X64_MSR_STIMER0_CONFIG through
- * HV_X64_MSR_STIMER3_COUNT) available
- */
-#define HV_X64_MSR_SYNTIMER_AVAILABLE (1 << 3)
-/*
- * APIC access MSRs (HV_X64_MSR_EOI, HV_X64_MSR_ICR and HV_X64_MSR_TPR)
- * are available
- */
-#define HV_X64_MSR_APIC_ACCESS_AVAILABLE (1 << 4)
-/* Hypercall MSRs (HV_X64_MSR_GUEST_OS_ID and HV_X64_MSR_HYPERCALL) available*/
-#define HV_X64_MSR_HYPERCALL_AVAILABLE (1 << 5)
-/* Access virtual processor index MSR (HV_X64_MSR_VP_INDEX) available*/
-#define HV_X64_MSR_VP_INDEX_AVAILABLE (1 << 6)
-/* Virtual system reset MSR (HV_X64_MSR_RESET) is available*/
-#define HV_X64_MSR_RESET_AVAILABLE (1 << 7)
- /*
- * Access statistics pages MSRs (HV_X64_MSR_STATS_PARTITION_RETAIL_PAGE,
- * HV_X64_MSR_STATS_PARTITION_INTERNAL_PAGE, HV_X64_MSR_STATS_VP_RETAIL_PAGE,
- * HV_X64_MSR_STATS_VP_INTERNAL_PAGE) available
- */
-#define HV_X64_MSR_STAT_PAGES_AVAILABLE (1 << 8)
-
-/*
- * Feature identification: EBX indicates which flags were specified at
- * partition creation. The format is the same as the partition creation
- * flag structure defined in section Partition Creation Flags.
- */
-#define HV_X64_CREATE_PARTITIONS (1 << 0)
-#define HV_X64_ACCESS_PARTITION_ID (1 << 1)
-#define HV_X64_ACCESS_MEMORY_POOL (1 << 2)
-#define HV_X64_ADJUST_MESSAGE_BUFFERS (1 << 3)
-#define HV_X64_POST_MESSAGES (1 << 4)
-#define HV_X64_SIGNAL_EVENTS (1 << 5)
-#define HV_X64_CREATE_PORT (1 << 6)
-#define HV_X64_CONNECT_PORT (1 << 7)
-#define HV_X64_ACCESS_STATS (1 << 8)
-#define HV_X64_DEBUGGING (1 << 11)
-#define HV_X64_CPU_POWER_MANAGEMENT (1 << 12)
-#define HV_X64_CONFIGURE_PROFILER (1 << 13)
-
-/*
- * Feature identification. EDX indicates which miscellaneous features
- * are available to the partition.
- */
-/* The MWAIT instruction is available (per section MONITOR / MWAIT) */
-#define HV_X64_MWAIT_AVAILABLE (1 << 0)
-/* Guest debugging support is available */
-#define HV_X64_GUEST_DEBUGGING_AVAILABLE (1 << 1)
-/* Performance Monitor support is available*/
-#define HV_X64_PERF_MONITOR_AVAILABLE (1 << 2)
-/* Support for physical CPU dynamic partitioning events is available*/
-#define HV_X64_CPU_DYNAMIC_PARTITIONING_AVAILABLE (1 << 3)
-/*
- * Support for passing hypercall input parameter block via XMM
- * registers is available
- */
-#define HV_X64_HYPERCALL_PARAMS_XMM_AVAILABLE (1 << 4)
-/* Support for a virtual guest idle state is available */
-#define HV_X64_GUEST_IDLE_STATE_AVAILABLE (1 << 5)
-
-/*
- * Implementation recommendations. Indicates which behaviors the hypervisor
- * recommends the OS implement for optimal performance.
- */
- /*
- * Recommend using hypercall for address space switches rather
- * than MOV to CR3 instruction
- */
-#define HV_X64_MWAIT_RECOMMENDED (1 << 0)
-/* Recommend using hypercall for local TLB flushes rather
- * than INVLPG or MOV to CR3 instructions */
-#define HV_X64_LOCAL_TLB_FLUSH_RECOMMENDED (1 << 1)
-/*
- * Recommend using hypercall for remote TLB flushes rather
- * than inter-processor interrupts
- */
-#define HV_X64_REMOTE_TLB_FLUSH_RECOMMENDED (1 << 2)
-/*
- * Recommend using MSRs for accessing APIC registers
- * EOI, ICR and TPR rather than their memory-mapped counterparts
- */
-#define HV_X64_APIC_ACCESS_RECOMMENDED (1 << 3)
-/* Recommend using the hypervisor-provided MSR to initiate a system RESET */
-#define HV_X64_SYSTEM_RESET_RECOMMENDED (1 << 4)
-/*
- * Recommend using relaxed timing for this partition. If used,
- * the VM should disable any watchdog timeouts that rely on the
- * timely delivery of external interrupts
- */
-#define HV_X64_RELAXED_TIMING_RECOMMENDED (1 << 5)
-
-/* MSR used to identify the guest OS. */
-#define HV_X64_MSR_GUEST_OS_ID 0x40000000
-
-/* MSR used to setup pages used to communicate with the hypervisor. */
-#define HV_X64_MSR_HYPERCALL 0x40000001
-
-/* MSR used to provide vcpu index */
-#define HV_X64_MSR_VP_INDEX 0x40000002
-
-/* MSR used to read the per-partition time reference counter */
-#define HV_X64_MSR_TIME_REF_COUNT 0x40000020
-
-/* Define the virtual APIC registers */
-#define HV_X64_MSR_EOI 0x40000070
-#define HV_X64_MSR_ICR 0x40000071
-#define HV_X64_MSR_TPR 0x40000072
-#define HV_X64_MSR_APIC_ASSIST_PAGE 0x40000073
-
-/* Define synthetic interrupt controller model specific registers. */
-#define HV_X64_MSR_SCONTROL 0x40000080
-#define HV_X64_MSR_SVERSION 0x40000081
-#define HV_X64_MSR_SIEFP 0x40000082
-#define HV_X64_MSR_SIMP 0x40000083
-#define HV_X64_MSR_EOM 0x40000084
-#define HV_X64_MSR_SINT0 0x40000090
-#define HV_X64_MSR_SINT1 0x40000091
-#define HV_X64_MSR_SINT2 0x40000092
-#define HV_X64_MSR_SINT3 0x40000093
-#define HV_X64_MSR_SINT4 0x40000094
-#define HV_X64_MSR_SINT5 0x40000095
-#define HV_X64_MSR_SINT6 0x40000096
-#define HV_X64_MSR_SINT7 0x40000097
-#define HV_X64_MSR_SINT8 0x40000098
-#define HV_X64_MSR_SINT9 0x40000099
-#define HV_X64_MSR_SINT10 0x4000009A
-#define HV_X64_MSR_SINT11 0x4000009B
-#define HV_X64_MSR_SINT12 0x4000009C
-#define HV_X64_MSR_SINT13 0x4000009D
-#define HV_X64_MSR_SINT14 0x4000009E
-#define HV_X64_MSR_SINT15 0x4000009F
-
-
-#define HV_X64_MSR_HYPERCALL_ENABLE 0x00000001
-#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT 12
-#define HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_MASK \
- (~((1ull << HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT) - 1))
-
-/* Declare the various hypercall operations. */
-#define HV_X64_HV_NOTIFY_LONG_SPIN_WAIT 0x0008
-
-#define HV_X64_MSR_APIC_ASSIST_PAGE_ENABLE 0x00000001
-#define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT 12
-#define HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_MASK \
- (~((1ull << HV_X64_MSR_APIC_ASSIST_PAGE_ADDRESS_SHIFT) - 1))
-
-#define HV_PROCESSOR_POWER_STATE_C0 0
-#define HV_PROCESSOR_POWER_STATE_C1 1
-#define HV_PROCESSOR_POWER_STATE_C2 2
-#define HV_PROCESSOR_POWER_STATE_C3 3
-
-/* hypercall status code */
-#define HV_STATUS_SUCCESS 0
-#define HV_STATUS_INVALID_HYPERCALL_CODE 2
-#define HV_STATUS_INVALID_HYPERCALL_INPUT 3
-#define HV_STATUS_INVALID_ALIGNMENT 4
-
-#endif
diff --git a/arch/x86/include/asm/hyperv_timer.h b/arch/x86/include/asm/hyperv_timer.h
new file mode 100644
index 000000000000..388fa81b8f38
--- /dev/null
+++ b/arch/x86/include/asm/hyperv_timer.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_HYPERV_TIMER_H
+#define _ASM_X86_HYPERV_TIMER_H
+
+#include <asm/msr.h>
+
+#define hv_get_raw_timer() rdtsc_ordered()
+
+#endif
diff --git a/arch/x86/include/asm/hypervisor.h b/arch/x86/include/asm/hypervisor.h
index 7a15153c675d..e41cbf2ec41d 100644
--- a/arch/x86/include/asm/hypervisor.h
+++ b/arch/x86/include/asm/hypervisor.h
@@ -20,43 +20,64 @@
#ifndef _ASM_X86_HYPERVISOR_H
#define _ASM_X86_HYPERVISOR_H
+/* x86 hypervisor types */
+enum x86_hypervisor_type {
+ X86_HYPER_NATIVE = 0,
+ X86_HYPER_VMWARE,
+ X86_HYPER_MS_HYPERV,
+ X86_HYPER_XEN_PV,
+ X86_HYPER_XEN_HVM,
+ X86_HYPER_KVM,
+ X86_HYPER_JAILHOUSE,
+ X86_HYPER_ACRN,
+};
+
+#ifdef CONFIG_HYPERVISOR_GUEST
+
#include <asm/kvm_para.h>
+#include <asm/x86_init.h>
#include <asm/xen/hypervisor.h>
-extern void init_hypervisor(struct cpuinfo_x86 *c);
-extern void init_hypervisor_platform(void);
-
-/*
- * x86 hypervisor information
- */
struct hypervisor_x86 {
/* Hypervisor name */
const char *name;
/* Detection routine */
- bool (*detect)(void);
+ uint32_t (*detect)(void);
- /* Adjust CPU feature bits (run once per CPU) */
- void (*set_cpu_features)(struct cpuinfo_x86 *);
+ /* Hypervisor type */
+ enum x86_hypervisor_type type;
- /* Platform setup (run once per boot) */
- void (*init_platform)(void);
-};
+ /* init time callbacks */
+ struct x86_hyper_init init;
+
+ /* runtime callbacks */
+ struct x86_hyper_runtime runtime;
-extern const struct hypervisor_x86 *x86_hyper;
+ /* ignore nopv parameter */
+ bool ignore_nopv;
+};
-/* Recognized hypervisors */
extern const struct hypervisor_x86 x86_hyper_vmware;
extern const struct hypervisor_x86 x86_hyper_ms_hyperv;
-extern const struct hypervisor_x86 x86_hyper_xen_hvm;
+extern const struct hypervisor_x86 x86_hyper_xen_pv;
+extern const struct hypervisor_x86 x86_hyper_kvm;
+extern const struct hypervisor_x86 x86_hyper_jailhouse;
+extern const struct hypervisor_x86 x86_hyper_acrn;
+extern struct hypervisor_x86 x86_hyper_xen_hvm;
-static inline bool hypervisor_x2apic_available(void)
+extern bool nopv;
+extern enum x86_hypervisor_type x86_hyper_type;
+extern void init_hypervisor_platform(void);
+static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
{
- if (kvm_para_available())
- return true;
- if (xen_x2apic_para_available())
- return true;
- return false;
+ return x86_hyper_type == type;
}
-
-#endif
+#else
+static inline void init_hypervisor_platform(void) { }
+static inline bool hypervisor_is_type(enum x86_hypervisor_type type)
+{
+ return type == X86_HYPER_NATIVE;
+}
+#endif /* CONFIG_HYPERVISOR_GUEST */
+#endif /* _ASM_X86_HYPERVISOR_H */
diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h
deleted file mode 100644
index c9e09ea05644..000000000000
--- a/arch/x86/include/asm/i387.h
+++ /dev/null
@@ -1,453 +0,0 @@
-/*
- * Copyright (C) 1994 Linus Torvalds
- *
- * Pentium III FXSR, SSE support
- * General FPU state handling cleanups
- * Gareth Hughes <gareth@valinux.com>, May 2000
- * x86-64 work by Andi Kleen 2002
- */
-
-#ifndef _ASM_X86_I387_H
-#define _ASM_X86_I387_H
-
-#ifndef __ASSEMBLY__
-
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <linux/regset.h>
-#include <linux/hardirq.h>
-#include <linux/slab.h>
-#include <asm/asm.h>
-#include <asm/cpufeature.h>
-#include <asm/processor.h>
-#include <asm/sigcontext.h>
-#include <asm/user.h>
-#include <asm/uaccess.h>
-#include <asm/xsave.h>
-
-extern unsigned int sig_xstate_size;
-extern void fpu_init(void);
-extern void mxcsr_feature_mask_init(void);
-extern int init_fpu(struct task_struct *child);
-extern asmlinkage void math_state_restore(void);
-extern void __math_state_restore(void);
-extern int dump_fpu(struct pt_regs *, struct user_i387_struct *);
-
-extern user_regset_active_fn fpregs_active, xfpregs_active;
-extern user_regset_get_fn fpregs_get, xfpregs_get, fpregs_soft_get,
- xstateregs_get;
-extern user_regset_set_fn fpregs_set, xfpregs_set, fpregs_soft_set,
- xstateregs_set;
-
-/*
- * xstateregs_active == fpregs_active. Please refer to the comment
- * at the definition of fpregs_active.
- */
-#define xstateregs_active fpregs_active
-
-extern struct _fpx_sw_bytes fx_sw_reserved;
-#ifdef CONFIG_IA32_EMULATION
-extern unsigned int sig_xstate_ia32_size;
-extern struct _fpx_sw_bytes fx_sw_reserved_ia32;
-struct _fpstate_ia32;
-struct _xstate_ia32;
-extern int save_i387_xstate_ia32(void __user *buf);
-extern int restore_i387_xstate_ia32(void __user *buf);
-#endif
-
-#ifdef CONFIG_MATH_EMULATION
-extern void finit_soft_fpu(struct i387_soft_struct *soft);
-#else
-static inline void finit_soft_fpu(struct i387_soft_struct *soft) {}
-#endif
-
-#define X87_FSW_ES (1 << 7) /* Exception Summary */
-
-static __always_inline __pure bool use_xsaveopt(void)
-{
- return static_cpu_has(X86_FEATURE_XSAVEOPT);
-}
-
-static __always_inline __pure bool use_xsave(void)
-{
- return static_cpu_has(X86_FEATURE_XSAVE);
-}
-
-static __always_inline __pure bool use_fxsr(void)
-{
- return static_cpu_has(X86_FEATURE_FXSR);
-}
-
-extern void __sanitize_i387_state(struct task_struct *);
-
-static inline void sanitize_i387_state(struct task_struct *tsk)
-{
- if (!use_xsaveopt())
- return;
- __sanitize_i387_state(tsk);
-}
-
-#ifdef CONFIG_X86_64
-static inline int fxrstor_checking(struct i387_fxsave_struct *fx)
-{
- int err;
-
- /* See comment in fxsave() below. */
-#ifdef CONFIG_AS_FXSAVEQ
- asm volatile("1: fxrstorq %[fx]\n\t"
- "2:\n"
- ".section .fixup,\"ax\"\n"
- "3: movl $-1,%[err]\n"
- " jmp 2b\n"
- ".previous\n"
- _ASM_EXTABLE(1b, 3b)
- : [err] "=r" (err)
- : [fx] "m" (*fx), "0" (0));
-#else
- asm volatile("1: rex64/fxrstor (%[fx])\n\t"
- "2:\n"
- ".section .fixup,\"ax\"\n"
- "3: movl $-1,%[err]\n"
- " jmp 2b\n"
- ".previous\n"
- _ASM_EXTABLE(1b, 3b)
- : [err] "=r" (err)
- : [fx] "R" (fx), "m" (*fx), "0" (0));
-#endif
- return err;
-}
-
-static inline int fxsave_user(struct i387_fxsave_struct __user *fx)
-{
- int err;
-
- /*
- * Clear the bytes not touched by the fxsave and reserved
- * for the SW usage.
- */
- err = __clear_user(&fx->sw_reserved,
- sizeof(struct _fpx_sw_bytes));
- if (unlikely(err))
- return -EFAULT;
-
- /* See comment in fxsave() below. */
-#ifdef CONFIG_AS_FXSAVEQ
- asm volatile("1: fxsaveq %[fx]\n\t"
- "2:\n"
- ".section .fixup,\"ax\"\n"
- "3: movl $-1,%[err]\n"
- " jmp 2b\n"
- ".previous\n"
- _ASM_EXTABLE(1b, 3b)
- : [err] "=r" (err), [fx] "=m" (*fx)
- : "0" (0));
-#else
- asm volatile("1: rex64/fxsave (%[fx])\n\t"
- "2:\n"
- ".section .fixup,\"ax\"\n"
- "3: movl $-1,%[err]\n"
- " jmp 2b\n"
- ".previous\n"
- _ASM_EXTABLE(1b, 3b)
- : [err] "=r" (err), "=m" (*fx)
- : [fx] "R" (fx), "0" (0));
-#endif
- if (unlikely(err) &&
- __clear_user(fx, sizeof(struct i387_fxsave_struct)))
- err = -EFAULT;
- /* No need to clear here because the caller clears USED_MATH */
- return err;
-}
-
-static inline void fpu_fxsave(struct fpu *fpu)
-{
- /* Using "rex64; fxsave %0" is broken because, if the memory operand
- uses any extended registers for addressing, a second REX prefix
- will be generated (to the assembler, rex64 followed by semicolon
- is a separate instruction), and hence the 64-bitness is lost. */
-
-#ifdef CONFIG_AS_FXSAVEQ
- /* Using "fxsaveq %0" would be the ideal choice, but is only supported
- starting with gas 2.16. */
- __asm__ __volatile__("fxsaveq %0"
- : "=m" (fpu->state->fxsave));
-#else
- /* Using, as a workaround, the properly prefixed form below isn't
- accepted by any binutils version so far released, complaining that
- the same type of prefix is used twice if an extended register is
- needed for addressing (fix submitted to mainline 2005-11-21).
- asm volatile("rex64/fxsave %0"
- : "=m" (fpu->state->fxsave));
- This, however, we can work around by forcing the compiler to select
- an addressing mode that doesn't require extended registers. */
- asm volatile("rex64/fxsave (%[fx])"
- : "=m" (fpu->state->fxsave)
- : [fx] "R" (&fpu->state->fxsave));
-#endif
-}
-
-#else /* CONFIG_X86_32 */
-
-/* perform fxrstor iff the processor has extended states, otherwise frstor */
-static inline int fxrstor_checking(struct i387_fxsave_struct *fx)
-{
- /*
- * The "nop" is needed to make the instructions the same
- * length.
- */
- alternative_input(
- "nop ; frstor %1",
- "fxrstor %1",
- X86_FEATURE_FXSR,
- "m" (*fx));
-
- return 0;
-}
-
-static inline void fpu_fxsave(struct fpu *fpu)
-{
- asm volatile("fxsave %[fx]"
- : [fx] "=m" (fpu->state->fxsave));
-}
-
-#endif /* CONFIG_X86_64 */
-
-/* We need a safe address that is cheap to find and that is already
- in L1 during context switch. The best choices are unfortunately
- different for UP and SMP */
-#ifdef CONFIG_SMP
-#define safe_address (__per_cpu_offset[0])
-#else
-#define safe_address (kstat_cpu(0).cpustat.user)
-#endif
-
-/*
- * These must be called with preempt disabled
- */
-static inline void fpu_save_init(struct fpu *fpu)
-{
- if (use_xsave()) {
- fpu_xsave(fpu);
-
- /*
- * xsave header may indicate the init state of the FP.
- */
- if (!(fpu->state->xsave.xsave_hdr.xstate_bv & XSTATE_FP))
- return;
- } else if (use_fxsr()) {
- fpu_fxsave(fpu);
- } else {
- asm volatile("fnsave %[fx]; fwait"
- : [fx] "=m" (fpu->state->fsave));
- return;
- }
-
- if (unlikely(fpu->state->fxsave.swd & X87_FSW_ES))
- asm volatile("fnclex");
-
- /* AMD K7/K8 CPUs don't save/restore FDP/FIP/FOP unless an exception
- is pending. Clear the x87 state here by setting it to fixed
- values. safe_address is a random variable that should be in L1 */
- alternative_input(
- ASM_NOP8 ASM_NOP2,
- "emms\n\t" /* clear stack tags */
- "fildl %P[addr]", /* set F?P to defined value */
- X86_FEATURE_FXSAVE_LEAK,
- [addr] "m" (safe_address));
-}
-
-static inline void __save_init_fpu(struct task_struct *tsk)
-{
- fpu_save_init(&tsk->thread.fpu);
- task_thread_info(tsk)->status &= ~TS_USEDFPU;
-}
-
-static inline int fpu_fxrstor_checking(struct fpu *fpu)
-{
- return fxrstor_checking(&fpu->state->fxsave);
-}
-
-static inline int fpu_restore_checking(struct fpu *fpu)
-{
- if (use_xsave())
- return fpu_xrstor_checking(fpu);
- else
- return fpu_fxrstor_checking(fpu);
-}
-
-static inline int restore_fpu_checking(struct task_struct *tsk)
-{
- return fpu_restore_checking(&tsk->thread.fpu);
-}
-
-/*
- * Signal frame handlers...
- */
-extern int save_i387_xstate(void __user *buf);
-extern int restore_i387_xstate(void __user *buf);
-
-static inline void __unlazy_fpu(struct task_struct *tsk)
-{
- if (task_thread_info(tsk)->status & TS_USEDFPU) {
- __save_init_fpu(tsk);
- stts();
- } else
- tsk->fpu_counter = 0;
-}
-
-static inline void __clear_fpu(struct task_struct *tsk)
-{
- if (task_thread_info(tsk)->status & TS_USEDFPU) {
- /* Ignore delayed exceptions from user space */
- asm volatile("1: fwait\n"
- "2:\n"
- _ASM_EXTABLE(1b, 2b));
- task_thread_info(tsk)->status &= ~TS_USEDFPU;
- stts();
- }
-}
-
-static inline void kernel_fpu_begin(void)
-{
- struct thread_info *me = current_thread_info();
- preempt_disable();
- if (me->status & TS_USEDFPU)
- __save_init_fpu(me->task);
- else
- clts();
-}
-
-static inline void kernel_fpu_end(void)
-{
- stts();
- preempt_enable();
-}
-
-static inline bool irq_fpu_usable(void)
-{
- struct pt_regs *regs;
-
- return !in_interrupt() || !(regs = get_irq_regs()) || \
- user_mode(regs) || (read_cr0() & X86_CR0_TS);
-}
-
-/*
- * Some instructions like VIA's padlock instructions generate a spurious
- * DNA fault but don't modify SSE registers. And these instructions
- * get used from interrupt context as well. To prevent these kernel instructions
- * in interrupt context interacting wrongly with other user/kernel fpu usage, we
- * should use them only in the context of irq_ts_save/restore()
- */
-static inline int irq_ts_save(void)
-{
- /*
- * If in process context and not atomic, we can take a spurious DNA fault.
- * Otherwise, doing clts() in process context requires disabling preemption
- * or some heavy lifting like kernel_fpu_begin()
- */
- if (!in_atomic())
- return 0;
-
- if (read_cr0() & X86_CR0_TS) {
- clts();
- return 1;
- }
-
- return 0;
-}
-
-static inline void irq_ts_restore(int TS_state)
-{
- if (TS_state)
- stts();
-}
-
-/*
- * These disable preemption on their own and are safe
- */
-static inline void save_init_fpu(struct task_struct *tsk)
-{
- preempt_disable();
- __save_init_fpu(tsk);
- stts();
- preempt_enable();
-}
-
-static inline void unlazy_fpu(struct task_struct *tsk)
-{
- preempt_disable();
- __unlazy_fpu(tsk);
- preempt_enable();
-}
-
-static inline void clear_fpu(struct task_struct *tsk)
-{
- preempt_disable();
- __clear_fpu(tsk);
- preempt_enable();
-}
-
-/*
- * i387 state interaction
- */
-static inline unsigned short get_fpu_cwd(struct task_struct *tsk)
-{
- if (cpu_has_fxsr) {
- return tsk->thread.fpu.state->fxsave.cwd;
- } else {
- return (unsigned short)tsk->thread.fpu.state->fsave.cwd;
- }
-}
-
-static inline unsigned short get_fpu_swd(struct task_struct *tsk)
-{
- if (cpu_has_fxsr) {
- return tsk->thread.fpu.state->fxsave.swd;
- } else {
- return (unsigned short)tsk->thread.fpu.state->fsave.swd;
- }
-}
-
-static inline unsigned short get_fpu_mxcsr(struct task_struct *tsk)
-{
- if (cpu_has_xmm) {
- return tsk->thread.fpu.state->fxsave.mxcsr;
- } else {
- return MXCSR_DEFAULT;
- }
-}
-
-static bool fpu_allocated(struct fpu *fpu)
-{
- return fpu->state != NULL;
-}
-
-static inline int fpu_alloc(struct fpu *fpu)
-{
- if (fpu_allocated(fpu))
- return 0;
- fpu->state = kmem_cache_alloc(task_xstate_cachep, GFP_KERNEL);
- if (!fpu->state)
- return -ENOMEM;
- WARN_ON((unsigned long)fpu->state & 15);
- return 0;
-}
-
-static inline void fpu_free(struct fpu *fpu)
-{
- if (fpu->state) {
- kmem_cache_free(task_xstate_cachep, fpu->state);
- fpu->state = NULL;
- }
-}
-
-static inline void fpu_copy(struct fpu *dst, struct fpu *src)
-{
- memcpy(dst->state, src->state, xstate_size);
-}
-
-extern void fpu_finit(struct fpu *fpu);
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_X86_I387_H */
diff --git a/arch/x86/include/asm/i8253.h b/arch/x86/include/asm/i8253.h
deleted file mode 100644
index fc1f579fb965..000000000000
--- a/arch/x86/include/asm/i8253.h
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifndef _ASM_X86_I8253_H
-#define _ASM_X86_I8253_H
-
-/* i8253A PIT registers */
-#define PIT_MODE 0x43
-#define PIT_CH0 0x40
-#define PIT_CH2 0x42
-
-extern raw_spinlock_t i8253_lock;
-
-extern struct clock_event_device *global_clock_event;
-
-extern void setup_pit_timer(void);
-
-#define inb_pit inb_p
-#define outb_pit outb_p
-
-#endif /* _ASM_X86_I8253_H */
diff --git a/arch/x86/include/asm/i8259.h b/arch/x86/include/asm/i8259.h
index a20365953bf8..637fa1df3512 100644
--- a/arch/x86/include/asm/i8259.h
+++ b/arch/x86/include/asm/i8259.h
@@ -1,7 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_I8259_H
#define _ASM_X86_I8259_H
#include <linux/delay.h>
+#include <asm/io.h>
extern unsigned int cached_irq_mask;
@@ -17,6 +19,8 @@ extern unsigned int cached_irq_mask;
#define PIC_MASTER_OCW3 PIC_MASTER_ISR
#define PIC_SLAVE_CMD 0xa0
#define PIC_SLAVE_IMR 0xa1
+#define PIC_ELCR1 0x4d0
+#define PIC_ELCR2 0x4d1
/* i8259A PIC related value */
#define PIC_CASCADE_IR 2
@@ -60,6 +64,7 @@ struct legacy_pic {
void (*mask_all)(void);
void (*restore_mask)(void);
void (*init)(int auto_eoi);
+ int (*probe)(void);
int (*irq_pending)(unsigned int irq);
void (*make_irq)(unsigned int irq);
};
@@ -67,4 +72,14 @@ struct legacy_pic {
extern struct legacy_pic *legacy_pic;
extern struct legacy_pic null_legacy_pic;
+static inline bool has_legacy_pic(void)
+{
+ return legacy_pic != &null_legacy_pic;
+}
+
+static inline int nr_legacy_irqs(void)
+{
+ return legacy_pic->nr_legacy_irqs;
+}
+
#endif /* _ASM_X86_I8259_H */
diff --git a/arch/x86/include/asm/ia32.h b/arch/x86/include/asm/ia32.h
index 1f7e62517284..fada857f0a1e 100644
--- a/arch/x86/include/asm/ia32.h
+++ b/arch/x86/include/asm/ia32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_IA32_H
#define _ASM_X86_IA32_H
@@ -10,36 +11,15 @@
* 32 bit structures for IA32 support.
*/
-#include <asm/sigcontext32.h>
+#include <uapi/asm/sigcontext.h>
/* signal.h */
-struct sigaction32 {
- unsigned int sa_handler; /* Really a pointer, but need to deal
- with 32 bits */
- unsigned int sa_flags;
- unsigned int sa_restorer; /* Another 32 bit pointer */
- compat_sigset_t sa_mask; /* A 32 bit mask */
-};
-
-struct old_sigaction32 {
- unsigned int sa_handler; /* Really a pointer, but need to deal
- with 32 bits */
- compat_old_sigset_t sa_mask; /* A 32 bit mask */
- unsigned int sa_flags;
- unsigned int sa_restorer; /* Another 32 bit pointer */
-};
-
-typedef struct sigaltstack_ia32 {
- unsigned int ss_sp;
- int ss_flags;
- unsigned int ss_size;
-} stack_ia32_t;
struct ucontext_ia32 {
unsigned int uc_flags;
unsigned int uc_link;
- stack_ia32_t uc_stack;
- struct sigcontext_ia32 uc_mcontext;
+ compat_stack_t uc_stack;
+ struct sigcontext_32 uc_mcontext;
compat_sigset_t uc_sigmask; /* mask last for extensibility */
};
@@ -77,58 +57,6 @@ struct stat64 {
unsigned long long st_ino;
} __attribute__((packed));
-typedef struct compat_siginfo {
- int si_signo;
- int si_errno;
- int si_code;
-
- union {
- int _pad[((128 / sizeof(int)) - 3)];
-
- /* kill() */
- struct {
- unsigned int _pid; /* sender's pid */
- unsigned int _uid; /* sender's uid */
- } _kill;
-
- /* POSIX.1b timers */
- struct {
- compat_timer_t _tid; /* timer id */
- int _overrun; /* overrun count */
- compat_sigval_t _sigval; /* same as below */
- int _sys_private; /* not to be passed to user */
- int _overrun_incr; /* amount to add to overrun */
- } _timer;
-
- /* POSIX.1b signals */
- struct {
- unsigned int _pid; /* sender's pid */
- unsigned int _uid; /* sender's uid */
- compat_sigval_t _sigval;
- } _rt;
-
- /* SIGCHLD */
- struct {
- unsigned int _pid; /* which child */
- unsigned int _uid; /* sender's uid */
- int _status; /* exit code */
- compat_clock_t _utime;
- compat_clock_t _stime;
- } _sigchld;
-
- /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
- struct {
- unsigned int _addr; /* faulting insn/memory ref. */
- } _sigfault;
-
- /* SIGPOLL */
- struct {
- int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
- int _fd;
- } _sigpoll;
- } _sifields;
-} compat_siginfo_t;
-
#define IA32_STACK_TOP IA32_PAGE_OFFSET
#ifdef __KERNEL__
@@ -140,6 +68,6 @@ extern void ia32_pick_mmap_layout(struct mm_struct *mm);
#endif
-#endif /* !CONFIG_IA32_SUPPORT */
+#endif /* CONFIG_IA32_EMULATION */
#endif /* _ASM_X86_IA32_H */
diff --git a/arch/x86/include/asm/ia32_unistd.h b/arch/x86/include/asm/ia32_unistd.h
index 976f6ecd2ce6..aa065c94ccf5 100644
--- a/arch/x86/include/asm/ia32_unistd.h
+++ b/arch/x86/include/asm/ia32_unistd.h
@@ -1,18 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_IA32_UNISTD_H
#define _ASM_X86_IA32_UNISTD_H
/*
- * This file contains the system call numbers of the ia32 port,
+ * This file contains the system call numbers of the ia32 compat ABI,
* this is for the kernel only.
- * Only add syscalls here where some part of the kernel needs to know
- * the number. This should be otherwise in sync with asm-x86/unistd_32.h. -AK
*/
-
-#define __NR_ia32_restart_syscall 0
-#define __NR_ia32_exit 1
-#define __NR_ia32_read 3
-#define __NR_ia32_write 4
-#define __NR_ia32_sigreturn 119
-#define __NR_ia32_rt_sigreturn 173
+#define __SYSCALL_ia32_NR(x) (x)
+#include <asm/unistd_32_ia32.h>
#endif /* _ASM_X86_IA32_UNISTD_H */
diff --git a/arch/x86/include/asm/ibt.h b/arch/x86/include/asm/ibt.h
new file mode 100644
index 000000000000..baae6b4fea23
--- /dev/null
+++ b/arch/x86/include/asm/ibt.h
@@ -0,0 +1,116 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_IBT_H
+#define _ASM_X86_IBT_H
+
+#include <linux/types.h>
+
+/*
+ * The rules for enabling IBT are:
+ *
+ * - CC_HAS_IBT: the toolchain supports it
+ * - X86_KERNEL_IBT: it is selected in Kconfig
+ * - !__DISABLE_EXPORTS: this is regular kernel code
+ *
+ * Esp. that latter one is a bit non-obvious, but some code like compressed,
+ * purgatory, realmode etc.. is built with custom CFLAGS that do not include
+ * -fcf-protection=branch and things will go *bang*.
+ *
+ * When all the above are satisfied, HAS_KERNEL_IBT will be 1, otherwise 0.
+ */
+#if defined(CONFIG_X86_KERNEL_IBT) && !defined(__DISABLE_EXPORTS)
+
+#define HAS_KERNEL_IBT 1
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_X86_64
+#define ASM_ENDBR "endbr64\n\t"
+#else
+#define ASM_ENDBR "endbr32\n\t"
+#endif
+
+#define __noendbr __attribute__((nocf_check))
+
+/*
+ * Create a dummy function pointer reference to prevent objtool from marking
+ * the function as needing to be "sealed" (i.e. ENDBR converted to NOP by
+ * apply_ibt_endbr()).
+ */
+#define IBT_NOSEAL(fname) \
+ ".pushsection .discard.ibt_endbr_noseal\n\t" \
+ _ASM_PTR fname "\n\t" \
+ ".popsection\n\t"
+
+static inline __attribute_const__ u32 gen_endbr(void)
+{
+ u32 endbr;
+
+ /*
+ * Generate ENDBR64 in a way that is sure to not result in
+ * an ENDBR64 instruction as immediate.
+ */
+ asm ( "mov $~0xfa1e0ff3, %[endbr]\n\t"
+ "not %[endbr]\n\t"
+ : [endbr] "=&r" (endbr) );
+
+ return endbr;
+}
+
+static inline __attribute_const__ u32 gen_endbr_poison(void)
+{
+ /*
+ * 4 byte NOP that isn't NOP4 (in fact it is OSP NOP3), such that it
+ * will be unique to (former) ENDBR sites.
+ */
+ return 0x001f0f66; /* osp nopl (%rax) */
+}
+
+static inline bool is_endbr(u32 val)
+{
+ if (val == gen_endbr_poison())
+ return true;
+
+ val &= ~0x01000000U; /* ENDBR32 -> ENDBR64 */
+ return val == gen_endbr();
+}
+
+extern __noendbr u64 ibt_save(bool disable);
+extern __noendbr void ibt_restore(u64 save);
+
+#else /* __ASSEMBLY__ */
+
+#ifdef CONFIG_X86_64
+#define ENDBR endbr64
+#else
+#define ENDBR endbr32
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#else /* !IBT */
+
+#define HAS_KERNEL_IBT 0
+
+#ifndef __ASSEMBLY__
+
+#define ASM_ENDBR
+#define IBT_NOSEAL(name)
+
+#define __noendbr
+
+static inline bool is_endbr(u32 val) { return false; }
+
+static inline u64 ibt_save(bool disable) { return 0; }
+static inline void ibt_restore(u64 save) { }
+
+#else /* __ASSEMBLY__ */
+
+#define ENDBR
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* CONFIG_X86_KERNEL_IBT */
+
+#define ENDBR_INSN_SIZE (4*HAS_KERNEL_IBT)
+
+#endif /* _ASM_X86_IBT_H */
diff --git a/arch/x86/include/asm/idle.h b/arch/x86/include/asm/idle.h
deleted file mode 100644
index 38d87379e270..000000000000
--- a/arch/x86/include/asm/idle.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef _ASM_X86_IDLE_H
-#define _ASM_X86_IDLE_H
-
-#define IDLE_START 1
-#define IDLE_END 2
-
-struct notifier_block;
-void idle_notifier_register(struct notifier_block *n);
-void idle_notifier_unregister(struct notifier_block *n);
-
-#ifdef CONFIG_X86_64
-void enter_idle(void);
-void exit_idle(void);
-#else /* !CONFIG_X86_64 */
-static inline void enter_idle(void) { }
-static inline void exit_idle(void) { }
-#endif /* CONFIG_X86_64 */
-
-void c1e_remove_cpu(int cpu);
-
-#endif /* _ASM_X86_IDLE_H */
diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h
new file mode 100644
index 000000000000..b241af4ce9b4
--- /dev/null
+++ b/arch/x86/include/asm/idtentry.h
@@ -0,0 +1,701 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_IDTENTRY_H
+#define _ASM_X86_IDTENTRY_H
+
+/* Interrupts/Exceptions */
+#include <asm/trapnr.h>
+
+#define IDT_ALIGN (8 * (1 + HAS_KERNEL_IBT))
+
+#ifndef __ASSEMBLY__
+#include <linux/entry-common.h>
+#include <linux/hardirq.h>
+
+#include <asm/irq_stack.h>
+
+/**
+ * DECLARE_IDTENTRY - Declare functions for simple IDT entry points
+ * No error code pushed by hardware
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Declares three functions:
+ * - The ASM entry point: asm_##func
+ * - The XEN PV trap entry point: xen_##func (maybe unused)
+ * - The C handler called from the ASM entry point
+ *
+ * Note: This is the C variant of DECLARE_IDTENTRY(). As the name says it
+ * declares the entry points for usage in C code. There is an ASM variant
+ * as well which is used to emit the entry stubs in entry_32/64.S.
+ */
+#define DECLARE_IDTENTRY(vector, func) \
+ asmlinkage void asm_##func(void); \
+ asmlinkage void xen_asm_##func(void); \
+ __visible void func(struct pt_regs *regs)
+
+/**
+ * DEFINE_IDTENTRY - Emit code for simple IDT entry points
+ * @func: Function name of the entry point
+ *
+ * @func is called from ASM entry code with interrupts disabled.
+ *
+ * The macro is written so it acts as function definition. Append the
+ * body with a pair of curly brackets.
+ *
+ * irqentry_enter() contains common code which has to be invoked before
+ * arbitrary code in the body. irqentry_exit() contains common code
+ * which has to run before returning to the low level assembly code.
+ */
+#define DEFINE_IDTENTRY(func) \
+static __always_inline void __##func(struct pt_regs *regs); \
+ \
+__visible noinstr void func(struct pt_regs *regs) \
+{ \
+ irqentry_state_t state = irqentry_enter(regs); \
+ \
+ instrumentation_begin(); \
+ __##func (regs); \
+ instrumentation_end(); \
+ irqentry_exit(regs, state); \
+} \
+ \
+static __always_inline void __##func(struct pt_regs *regs)
+
+/* Special case for 32bit IRET 'trap' */
+#define DECLARE_IDTENTRY_SW DECLARE_IDTENTRY
+#define DEFINE_IDTENTRY_SW DEFINE_IDTENTRY
+
+/**
+ * DECLARE_IDTENTRY_ERRORCODE - Declare functions for simple IDT entry points
+ * Error code pushed by hardware
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Declares three functions:
+ * - The ASM entry point: asm_##func
+ * - The XEN PV trap entry point: xen_##func (maybe unused)
+ * - The C handler called from the ASM entry point
+ *
+ * Same as DECLARE_IDTENTRY, but has an extra error_code argument for the
+ * C-handler.
+ */
+#define DECLARE_IDTENTRY_ERRORCODE(vector, func) \
+ asmlinkage void asm_##func(void); \
+ asmlinkage void xen_asm_##func(void); \
+ __visible void func(struct pt_regs *regs, unsigned long error_code)
+
+/**
+ * DEFINE_IDTENTRY_ERRORCODE - Emit code for simple IDT entry points
+ * Error code pushed by hardware
+ * @func: Function name of the entry point
+ *
+ * Same as DEFINE_IDTENTRY, but has an extra error_code argument
+ */
+#define DEFINE_IDTENTRY_ERRORCODE(func) \
+static __always_inline void __##func(struct pt_regs *regs, \
+ unsigned long error_code); \
+ \
+__visible noinstr void func(struct pt_regs *regs, \
+ unsigned long error_code) \
+{ \
+ irqentry_state_t state = irqentry_enter(regs); \
+ \
+ instrumentation_begin(); \
+ __##func (regs, error_code); \
+ instrumentation_end(); \
+ irqentry_exit(regs, state); \
+} \
+ \
+static __always_inline void __##func(struct pt_regs *regs, \
+ unsigned long error_code)
+
+/**
+ * DECLARE_IDTENTRY_RAW - Declare functions for raw IDT entry points
+ * No error code pushed by hardware
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Maps to DECLARE_IDTENTRY().
+ */
+#define DECLARE_IDTENTRY_RAW(vector, func) \
+ DECLARE_IDTENTRY(vector, func)
+
+/**
+ * DEFINE_IDTENTRY_RAW - Emit code for raw IDT entry points
+ * @func: Function name of the entry point
+ *
+ * @func is called from ASM entry code with interrupts disabled.
+ *
+ * The macro is written so it acts as function definition. Append the
+ * body with a pair of curly brackets.
+ *
+ * Contrary to DEFINE_IDTENTRY() this does not invoke the
+ * idtentry_enter/exit() helpers before and after the body invocation. This
+ * needs to be done in the body itself if applicable. Use if extra work
+ * is required before the enter/exit() helpers are invoked.
+ */
+#define DEFINE_IDTENTRY_RAW(func) \
+__visible noinstr void func(struct pt_regs *regs)
+
+/**
+ * DECLARE_IDTENTRY_RAW_ERRORCODE - Declare functions for raw IDT entry points
+ * Error code pushed by hardware
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Maps to DECLARE_IDTENTRY_ERRORCODE()
+ */
+#define DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func) \
+ DECLARE_IDTENTRY_ERRORCODE(vector, func)
+
+/**
+ * DEFINE_IDTENTRY_RAW_ERRORCODE - Emit code for raw IDT entry points
+ * @func: Function name of the entry point
+ *
+ * @func is called from ASM entry code with interrupts disabled.
+ *
+ * The macro is written so it acts as function definition. Append the
+ * body with a pair of curly brackets.
+ *
+ * Contrary to DEFINE_IDTENTRY_ERRORCODE() this does not invoke the
+ * irqentry_enter/exit() helpers before and after the body invocation. This
+ * needs to be done in the body itself if applicable. Use if extra work
+ * is required before the enter/exit() helpers are invoked.
+ */
+#define DEFINE_IDTENTRY_RAW_ERRORCODE(func) \
+__visible noinstr void func(struct pt_regs *regs, unsigned long error_code)
+
+/**
+ * DECLARE_IDTENTRY_IRQ - Declare functions for device interrupt IDT entry
+ * points (common/spurious)
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Maps to DECLARE_IDTENTRY_ERRORCODE()
+ */
+#define DECLARE_IDTENTRY_IRQ(vector, func) \
+ DECLARE_IDTENTRY_ERRORCODE(vector, func)
+
+/**
+ * DEFINE_IDTENTRY_IRQ - Emit code for device interrupt IDT entry points
+ * @func: Function name of the entry point
+ *
+ * The vector number is pushed by the low level entry stub and handed
+ * to the function as error_code argument which needs to be truncated
+ * to an u8 because the push is sign extending.
+ *
+ * irq_enter/exit_rcu() are invoked before the function body and the
+ * KVM L1D flush request is set. Stack switching to the interrupt stack
+ * has to be done in the function body if necessary.
+ */
+#define DEFINE_IDTENTRY_IRQ(func) \
+static void __##func(struct pt_regs *regs, u32 vector); \
+ \
+__visible noinstr void func(struct pt_regs *regs, \
+ unsigned long error_code) \
+{ \
+ irqentry_state_t state = irqentry_enter(regs); \
+ u32 vector = (u32)(u8)error_code; \
+ \
+ instrumentation_begin(); \
+ kvm_set_cpu_l1tf_flush_l1d(); \
+ run_irq_on_irqstack_cond(__##func, regs, vector); \
+ instrumentation_end(); \
+ irqentry_exit(regs, state); \
+} \
+ \
+static noinline void __##func(struct pt_regs *regs, u32 vector)
+
+/**
+ * DECLARE_IDTENTRY_SYSVEC - Declare functions for system vector entry points
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Declares three functions:
+ * - The ASM entry point: asm_##func
+ * - The XEN PV trap entry point: xen_##func (maybe unused)
+ * - The C handler called from the ASM entry point
+ *
+ * Maps to DECLARE_IDTENTRY().
+ */
+#define DECLARE_IDTENTRY_SYSVEC(vector, func) \
+ DECLARE_IDTENTRY(vector, func)
+
+/**
+ * DEFINE_IDTENTRY_SYSVEC - Emit code for system vector IDT entry points
+ * @func: Function name of the entry point
+ *
+ * irqentry_enter/exit() and irq_enter/exit_rcu() are invoked before the
+ * function body. KVM L1D flush request is set.
+ *
+ * Runs the function on the interrupt stack if the entry hit kernel mode
+ */
+#define DEFINE_IDTENTRY_SYSVEC(func) \
+static void __##func(struct pt_regs *regs); \
+ \
+__visible noinstr void func(struct pt_regs *regs) \
+{ \
+ irqentry_state_t state = irqentry_enter(regs); \
+ \
+ instrumentation_begin(); \
+ kvm_set_cpu_l1tf_flush_l1d(); \
+ run_sysvec_on_irqstack_cond(__##func, regs); \
+ instrumentation_end(); \
+ irqentry_exit(regs, state); \
+} \
+ \
+static noinline void __##func(struct pt_regs *regs)
+
+/**
+ * DEFINE_IDTENTRY_SYSVEC_SIMPLE - Emit code for simple system vector IDT
+ * entry points
+ * @func: Function name of the entry point
+ *
+ * Runs the function on the interrupted stack. No switch to IRQ stack and
+ * only the minimal __irq_enter/exit() handling.
+ *
+ * Only use for 'empty' vectors like reschedule IPI and KVM posted
+ * interrupt vectors.
+ */
+#define DEFINE_IDTENTRY_SYSVEC_SIMPLE(func) \
+static __always_inline void __##func(struct pt_regs *regs); \
+ \
+__visible noinstr void func(struct pt_regs *regs) \
+{ \
+ irqentry_state_t state = irqentry_enter(regs); \
+ \
+ instrumentation_begin(); \
+ __irq_enter_raw(); \
+ kvm_set_cpu_l1tf_flush_l1d(); \
+ __##func (regs); \
+ __irq_exit_raw(); \
+ instrumentation_end(); \
+ irqentry_exit(regs, state); \
+} \
+ \
+static __always_inline void __##func(struct pt_regs *regs)
+
+/**
+ * DECLARE_IDTENTRY_XENCB - Declare functions for XEN HV callback entry point
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Declares three functions:
+ * - The ASM entry point: asm_##func
+ * - The XEN PV trap entry point: xen_##func (maybe unused)
+ * - The C handler called from the ASM entry point
+ *
+ * Maps to DECLARE_IDTENTRY(). Distinct entry point to handle the 32/64-bit
+ * difference
+ */
+#define DECLARE_IDTENTRY_XENCB(vector, func) \
+ DECLARE_IDTENTRY(vector, func)
+
+#ifdef CONFIG_X86_64
+/**
+ * DECLARE_IDTENTRY_IST - Declare functions for IST handling IDT entry points
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Maps to DECLARE_IDTENTRY_RAW, but declares also the NOIST C handler
+ * which is called from the ASM entry point on user mode entry
+ */
+#define DECLARE_IDTENTRY_IST(vector, func) \
+ DECLARE_IDTENTRY_RAW(vector, func); \
+ __visible void noist_##func(struct pt_regs *regs)
+
+/**
+ * DECLARE_IDTENTRY_VC - Declare functions for the VC entry point
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Maps to DECLARE_IDTENTRY_RAW_ERRORCODE, but declares also the
+ * safe_stack C handler.
+ */
+#define DECLARE_IDTENTRY_VC(vector, func) \
+ DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func); \
+ __visible noinstr void kernel_##func(struct pt_regs *regs, unsigned long error_code); \
+ __visible noinstr void user_##func(struct pt_regs *regs, unsigned long error_code)
+
+/**
+ * DEFINE_IDTENTRY_IST - Emit code for IST entry points
+ * @func: Function name of the entry point
+ *
+ * Maps to DEFINE_IDTENTRY_RAW
+ */
+#define DEFINE_IDTENTRY_IST(func) \
+ DEFINE_IDTENTRY_RAW(func)
+
+/**
+ * DEFINE_IDTENTRY_NOIST - Emit code for NOIST entry points which
+ * belong to a IST entry point (MCE, DB)
+ * @func: Function name of the entry point. Must be the same as
+ * the function name of the corresponding IST variant
+ *
+ * Maps to DEFINE_IDTENTRY_RAW().
+ */
+#define DEFINE_IDTENTRY_NOIST(func) \
+ DEFINE_IDTENTRY_RAW(noist_##func)
+
+/**
+ * DECLARE_IDTENTRY_DF - Declare functions for double fault
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Maps to DECLARE_IDTENTRY_RAW_ERRORCODE
+ */
+#define DECLARE_IDTENTRY_DF(vector, func) \
+ DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func)
+
+/**
+ * DEFINE_IDTENTRY_DF - Emit code for double fault
+ * @func: Function name of the entry point
+ *
+ * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE
+ */
+#define DEFINE_IDTENTRY_DF(func) \
+ DEFINE_IDTENTRY_RAW_ERRORCODE(func)
+
+/**
+ * DEFINE_IDTENTRY_VC_KERNEL - Emit code for VMM communication handler
+ when raised from kernel mode
+ * @func: Function name of the entry point
+ *
+ * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE
+ */
+#define DEFINE_IDTENTRY_VC_KERNEL(func) \
+ DEFINE_IDTENTRY_RAW_ERRORCODE(kernel_##func)
+
+/**
+ * DEFINE_IDTENTRY_VC_USER - Emit code for VMM communication handler
+ when raised from user mode
+ * @func: Function name of the entry point
+ *
+ * Maps to DEFINE_IDTENTRY_RAW_ERRORCODE
+ */
+#define DEFINE_IDTENTRY_VC_USER(func) \
+ DEFINE_IDTENTRY_RAW_ERRORCODE(user_##func)
+
+#else /* CONFIG_X86_64 */
+
+/**
+ * DECLARE_IDTENTRY_DF - Declare functions for double fault 32bit variant
+ * @vector: Vector number (ignored for C)
+ * @func: Function name of the entry point
+ *
+ * Declares two functions:
+ * - The ASM entry point: asm_##func
+ * - The C handler called from the C shim
+ */
+#define DECLARE_IDTENTRY_DF(vector, func) \
+ asmlinkage void asm_##func(void); \
+ __visible void func(struct pt_regs *regs, \
+ unsigned long error_code, \
+ unsigned long address)
+
+/**
+ * DEFINE_IDTENTRY_DF - Emit code for double fault on 32bit
+ * @func: Function name of the entry point
+ *
+ * This is called through the doublefault shim which already provides
+ * cr2 in the address argument.
+ */
+#define DEFINE_IDTENTRY_DF(func) \
+__visible noinstr void func(struct pt_regs *regs, \
+ unsigned long error_code, \
+ unsigned long address)
+
+#endif /* !CONFIG_X86_64 */
+
+/* C-Code mapping */
+#define DECLARE_IDTENTRY_NMI DECLARE_IDTENTRY_RAW
+#define DEFINE_IDTENTRY_NMI DEFINE_IDTENTRY_RAW
+
+#ifdef CONFIG_X86_64
+#define DECLARE_IDTENTRY_MCE DECLARE_IDTENTRY_IST
+#define DEFINE_IDTENTRY_MCE DEFINE_IDTENTRY_IST
+#define DEFINE_IDTENTRY_MCE_USER DEFINE_IDTENTRY_NOIST
+
+#define DECLARE_IDTENTRY_DEBUG DECLARE_IDTENTRY_IST
+#define DEFINE_IDTENTRY_DEBUG DEFINE_IDTENTRY_IST
+#define DEFINE_IDTENTRY_DEBUG_USER DEFINE_IDTENTRY_NOIST
+#endif
+
+#else /* !__ASSEMBLY__ */
+
+/*
+ * The ASM variants for DECLARE_IDTENTRY*() which emit the ASM entry stubs.
+ */
+#define DECLARE_IDTENTRY(vector, func) \
+ idtentry vector asm_##func func has_error_code=0
+
+#define DECLARE_IDTENTRY_ERRORCODE(vector, func) \
+ idtentry vector asm_##func func has_error_code=1
+
+/* Special case for 32bit IRET 'trap'. Do not emit ASM code */
+#define DECLARE_IDTENTRY_SW(vector, func)
+
+#define DECLARE_IDTENTRY_RAW(vector, func) \
+ DECLARE_IDTENTRY(vector, func)
+
+#define DECLARE_IDTENTRY_RAW_ERRORCODE(vector, func) \
+ DECLARE_IDTENTRY_ERRORCODE(vector, func)
+
+/* Entries for common/spurious (device) interrupts */
+#define DECLARE_IDTENTRY_IRQ(vector, func) \
+ idtentry_irq vector func
+
+/* System vector entries */
+#define DECLARE_IDTENTRY_SYSVEC(vector, func) \
+ idtentry_sysvec vector func
+
+#ifdef CONFIG_X86_64
+# define DECLARE_IDTENTRY_MCE(vector, func) \
+ idtentry_mce_db vector asm_##func func
+
+# define DECLARE_IDTENTRY_DEBUG(vector, func) \
+ idtentry_mce_db vector asm_##func func
+
+# define DECLARE_IDTENTRY_DF(vector, func) \
+ idtentry_df vector asm_##func func
+
+# define DECLARE_IDTENTRY_XENCB(vector, func) \
+ DECLARE_IDTENTRY(vector, func)
+
+# define DECLARE_IDTENTRY_VC(vector, func) \
+ idtentry_vc vector asm_##func func
+
+#else
+# define DECLARE_IDTENTRY_MCE(vector, func) \
+ DECLARE_IDTENTRY(vector, func)
+
+/* No ASM emitted for DF as this goes through a C shim */
+# define DECLARE_IDTENTRY_DF(vector, func)
+
+/* No ASM emitted for XEN hypervisor callback */
+# define DECLARE_IDTENTRY_XENCB(vector, func)
+
+#endif
+
+/* No ASM code emitted for NMI */
+#define DECLARE_IDTENTRY_NMI(vector, func)
+
+/*
+ * ASM code to emit the common vector entry stubs where each stub is
+ * packed into IDT_ALIGN bytes.
+ *
+ * Note, that the 'pushq imm8' is emitted via '.byte 0x6a, vector' because
+ * GCC treats the local vector variable as unsigned int and would expand
+ * all vectors above 0x7F to a 5 byte push. The original code did an
+ * adjustment of the vector number to be in the signed byte range to avoid
+ * this. While clever it's mindboggling counterintuitive and requires the
+ * odd conversion back to a real vector number in the C entry points. Using
+ * .byte achieves the same thing and the only fixup needed in the C entry
+ * point is to mask off the bits above bit 7 because the push is sign
+ * extending.
+ */
+ .align IDT_ALIGN
+SYM_CODE_START(irq_entries_start)
+ vector=FIRST_EXTERNAL_VECTOR
+ .rept NR_EXTERNAL_VECTORS
+ UNWIND_HINT_IRET_REGS
+0 :
+ ENDBR
+ .byte 0x6a, vector
+ jmp asm_common_interrupt
+ /* Ensure that the above is IDT_ALIGN bytes max */
+ .fill 0b + IDT_ALIGN - ., 1, 0xcc
+ vector = vector+1
+ .endr
+SYM_CODE_END(irq_entries_start)
+
+#ifdef CONFIG_X86_LOCAL_APIC
+ .align IDT_ALIGN
+SYM_CODE_START(spurious_entries_start)
+ vector=FIRST_SYSTEM_VECTOR
+ .rept NR_SYSTEM_VECTORS
+ UNWIND_HINT_IRET_REGS
+0 :
+ ENDBR
+ .byte 0x6a, vector
+ jmp asm_spurious_interrupt
+ /* Ensure that the above is IDT_ALIGN bytes max */
+ .fill 0b + IDT_ALIGN - ., 1, 0xcc
+ vector = vector+1
+ .endr
+SYM_CODE_END(spurious_entries_start)
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * The actual entry points. Note that DECLARE_IDTENTRY*() serves two
+ * purposes:
+ * - provide the function declarations when included from C-Code
+ * - emit the ASM stubs when included from entry_32/64.S
+ *
+ * This avoids duplicate defines and ensures that everything is consistent.
+ */
+
+/*
+ * Dummy trap number so the low level ASM macro vector number checks do not
+ * match which results in emitting plain IDTENTRY stubs without bells and
+ * whistles.
+ */
+#define X86_TRAP_OTHER 0xFFFF
+
+/* Simple exception entry points. No hardware error code */
+DECLARE_IDTENTRY(X86_TRAP_DE, exc_divide_error);
+DECLARE_IDTENTRY(X86_TRAP_OF, exc_overflow);
+DECLARE_IDTENTRY(X86_TRAP_BR, exc_bounds);
+DECLARE_IDTENTRY(X86_TRAP_NM, exc_device_not_available);
+DECLARE_IDTENTRY(X86_TRAP_OLD_MF, exc_coproc_segment_overrun);
+DECLARE_IDTENTRY(X86_TRAP_SPURIOUS, exc_spurious_interrupt_bug);
+DECLARE_IDTENTRY(X86_TRAP_MF, exc_coprocessor_error);
+DECLARE_IDTENTRY(X86_TRAP_XF, exc_simd_coprocessor_error);
+
+/* 32bit software IRET trap. Do not emit ASM code */
+DECLARE_IDTENTRY_SW(X86_TRAP_IRET, iret_error);
+
+/* Simple exception entries with error code pushed by hardware */
+DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_TS, exc_invalid_tss);
+DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_NP, exc_segment_not_present);
+DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_SS, exc_stack_segment);
+DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_GP, exc_general_protection);
+DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_AC, exc_alignment_check);
+
+/* Raw exception entries which need extra work */
+DECLARE_IDTENTRY_RAW(X86_TRAP_UD, exc_invalid_op);
+DECLARE_IDTENTRY_RAW(X86_TRAP_BP, exc_int3);
+DECLARE_IDTENTRY_RAW_ERRORCODE(X86_TRAP_PF, exc_page_fault);
+
+#ifdef CONFIG_X86_MCE
+#ifdef CONFIG_X86_64
+DECLARE_IDTENTRY_MCE(X86_TRAP_MC, exc_machine_check);
+#else
+DECLARE_IDTENTRY_RAW(X86_TRAP_MC, exc_machine_check);
+#endif
+#ifdef CONFIG_XEN_PV
+DECLARE_IDTENTRY_RAW(X86_TRAP_MC, xenpv_exc_machine_check);
+#endif
+#endif
+
+/* NMI */
+
+#if IS_ENABLED(CONFIG_KVM_INTEL)
+/*
+ * Special entry point for VMX which invokes this on the kernel stack, even for
+ * 64-bit, i.e. without using an IST. asm_exc_nmi() requires an IST to work
+ * correctly vs. the NMI 'executing' marker. Used for 32-bit kernels as well
+ * to avoid more ifdeffery.
+ */
+DECLARE_IDTENTRY(X86_TRAP_NMI, exc_nmi_kvm_vmx);
+#endif
+
+DECLARE_IDTENTRY_NMI(X86_TRAP_NMI, exc_nmi);
+#ifdef CONFIG_XEN_PV
+DECLARE_IDTENTRY_RAW(X86_TRAP_NMI, xenpv_exc_nmi);
+#endif
+
+/* #DB */
+#ifdef CONFIG_X86_64
+DECLARE_IDTENTRY_DEBUG(X86_TRAP_DB, exc_debug);
+#else
+DECLARE_IDTENTRY_RAW(X86_TRAP_DB, exc_debug);
+#endif
+#ifdef CONFIG_XEN_PV
+DECLARE_IDTENTRY_RAW(X86_TRAP_DB, xenpv_exc_debug);
+#endif
+
+/* #DF */
+DECLARE_IDTENTRY_DF(X86_TRAP_DF, exc_double_fault);
+#ifdef CONFIG_XEN_PV
+DECLARE_IDTENTRY_RAW_ERRORCODE(X86_TRAP_DF, xenpv_exc_double_fault);
+#endif
+
+/* #CP */
+#ifdef CONFIG_X86_KERNEL_IBT
+DECLARE_IDTENTRY_ERRORCODE(X86_TRAP_CP, exc_control_protection);
+#endif
+
+/* #VC */
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+DECLARE_IDTENTRY_VC(X86_TRAP_VC, exc_vmm_communication);
+#endif
+
+#ifdef CONFIG_XEN_PV
+DECLARE_IDTENTRY_XENCB(X86_TRAP_OTHER, exc_xen_hypervisor_callback);
+DECLARE_IDTENTRY_RAW(X86_TRAP_OTHER, exc_xen_unknown_trap);
+#endif
+
+#ifdef CONFIG_INTEL_TDX_GUEST
+DECLARE_IDTENTRY(X86_TRAP_VE, exc_virtualization_exception);
+#endif
+
+/* Device interrupts common/spurious */
+DECLARE_IDTENTRY_IRQ(X86_TRAP_OTHER, common_interrupt);
+#ifdef CONFIG_X86_LOCAL_APIC
+DECLARE_IDTENTRY_IRQ(X86_TRAP_OTHER, spurious_interrupt);
+#endif
+
+/* System vector entry points */
+#ifdef CONFIG_X86_LOCAL_APIC
+DECLARE_IDTENTRY_SYSVEC(ERROR_APIC_VECTOR, sysvec_error_interrupt);
+DECLARE_IDTENTRY_SYSVEC(SPURIOUS_APIC_VECTOR, sysvec_spurious_apic_interrupt);
+DECLARE_IDTENTRY_SYSVEC(LOCAL_TIMER_VECTOR, sysvec_apic_timer_interrupt);
+DECLARE_IDTENTRY_SYSVEC(X86_PLATFORM_IPI_VECTOR, sysvec_x86_platform_ipi);
+#endif
+
+#ifdef CONFIG_SMP
+DECLARE_IDTENTRY(RESCHEDULE_VECTOR, sysvec_reschedule_ipi);
+DECLARE_IDTENTRY_SYSVEC(IRQ_MOVE_CLEANUP_VECTOR, sysvec_irq_move_cleanup);
+DECLARE_IDTENTRY_SYSVEC(REBOOT_VECTOR, sysvec_reboot);
+DECLARE_IDTENTRY_SYSVEC(CALL_FUNCTION_SINGLE_VECTOR, sysvec_call_function_single);
+DECLARE_IDTENTRY_SYSVEC(CALL_FUNCTION_VECTOR, sysvec_call_function);
+#endif
+
+#ifdef CONFIG_X86_LOCAL_APIC
+# ifdef CONFIG_X86_MCE_THRESHOLD
+DECLARE_IDTENTRY_SYSVEC(THRESHOLD_APIC_VECTOR, sysvec_threshold);
+# endif
+
+# ifdef CONFIG_X86_MCE_AMD
+DECLARE_IDTENTRY_SYSVEC(DEFERRED_ERROR_VECTOR, sysvec_deferred_error);
+# endif
+
+# ifdef CONFIG_X86_THERMAL_VECTOR
+DECLARE_IDTENTRY_SYSVEC(THERMAL_APIC_VECTOR, sysvec_thermal);
+# endif
+
+# ifdef CONFIG_IRQ_WORK
+DECLARE_IDTENTRY_SYSVEC(IRQ_WORK_VECTOR, sysvec_irq_work);
+# endif
+#endif
+
+#ifdef CONFIG_HAVE_KVM
+DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_VECTOR, sysvec_kvm_posted_intr_ipi);
+DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_WAKEUP_VECTOR, sysvec_kvm_posted_intr_wakeup_ipi);
+DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_NESTED_VECTOR, sysvec_kvm_posted_intr_nested_ipi);
+#endif
+
+#if IS_ENABLED(CONFIG_HYPERV)
+DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR, sysvec_hyperv_callback);
+DECLARE_IDTENTRY_SYSVEC(HYPERV_REENLIGHTENMENT_VECTOR, sysvec_hyperv_reenlightenment);
+DECLARE_IDTENTRY_SYSVEC(HYPERV_STIMER0_VECTOR, sysvec_hyperv_stimer0);
+#endif
+
+#if IS_ENABLED(CONFIG_ACRN_GUEST)
+DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR, sysvec_acrn_hv_callback);
+#endif
+
+#ifdef CONFIG_XEN_PVHVM
+DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR, sysvec_xen_hvm_callback);
+#endif
+
+#ifdef CONFIG_KVM_GUEST
+DECLARE_IDTENTRY_SYSVEC(HYPERVISOR_CALLBACK_VECTOR, sysvec_kvm_asyncpf_interrupt);
+#endif
+
+#undef X86_TRAP_OTHER
+
+#endif
diff --git a/arch/x86/include/asm/imr.h b/arch/x86/include/asm/imr.h
new file mode 100644
index 000000000000..0d1dbf235679
--- /dev/null
+++ b/arch/x86/include/asm/imr.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * imr.h: Isolated Memory Region API
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ * Copyright(c) 2015 Bryan O'Donoghue <pure.logic@nexus-software.ie>
+ */
+#ifndef _IMR_H
+#define _IMR_H
+
+#include <linux/types.h>
+
+/*
+ * IMR agent access mask bits
+ * See section 12.7.4.7 from quark-x1000-datasheet.pdf for register
+ * definitions.
+ */
+#define IMR_ESRAM_FLUSH BIT(31)
+#define IMR_CPU_SNOOP BIT(30) /* Applicable only to write */
+#define IMR_RMU BIT(29)
+#define IMR_VC1_SAI_ID3 BIT(15)
+#define IMR_VC1_SAI_ID2 BIT(14)
+#define IMR_VC1_SAI_ID1 BIT(13)
+#define IMR_VC1_SAI_ID0 BIT(12)
+#define IMR_VC0_SAI_ID3 BIT(11)
+#define IMR_VC0_SAI_ID2 BIT(10)
+#define IMR_VC0_SAI_ID1 BIT(9)
+#define IMR_VC0_SAI_ID0 BIT(8)
+#define IMR_CPU_0 BIT(1) /* SMM mode */
+#define IMR_CPU BIT(0) /* Non SMM mode */
+#define IMR_ACCESS_NONE 0
+
+/*
+ * Read/Write access-all bits here include some reserved bits
+ * These are the values firmware uses and are accepted by hardware.
+ * The kernel defines read/write access-all in the same way as firmware
+ * in order to have a consistent and crisp definition across firmware,
+ * bootloader and kernel.
+ */
+#define IMR_READ_ACCESS_ALL 0xBFFFFFFF
+#define IMR_WRITE_ACCESS_ALL 0xFFFFFFFF
+
+/* Number of IMRs provided by Quark X1000 SoC */
+#define QUARK_X1000_IMR_MAX 0x08
+#define QUARK_X1000_IMR_REGBASE 0x40
+
+/* IMR alignment bits - only bits 31:10 are checked for IMR validity */
+#define IMR_ALIGN 0x400
+#define IMR_MASK (IMR_ALIGN - 1)
+
+int imr_add_range(phys_addr_t base, size_t size,
+ unsigned int rmask, unsigned int wmask);
+
+int imr_remove_range(phys_addr_t base, size_t size);
+
+#endif /* _IMR_H */
diff --git a/arch/x86/include/asm/inat.h b/arch/x86/include/asm/inat.h
index 205b063e3e32..b56c5741581a 100644
--- a/arch/x86/include/asm/inat.h
+++ b/arch/x86/include/asm/inat.h
@@ -1,26 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_X86_INAT_H
#define _ASM_X86_INAT_H
/*
* x86 instruction attributes
*
* Written by Masami Hiramatsu <mhiramat@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
*/
-#include <asm/inat_types.h>
+#include <asm/inat_types.h> /* __ignore_sync_check__ */
/*
* Internal bits. Don't use bitmasks directly, because these bits are
@@ -48,6 +34,7 @@
/* AVX VEX prefixes */
#define INAT_PFX_VEX2 13 /* 2-bytes VEX prefix */
#define INAT_PFX_VEX3 14 /* 3-bytes VEX prefix */
+#define INAT_PFX_EVEX 15 /* EVEX prefix */
#define INAT_LSTPFX_MAX 3
#define INAT_LGCPFX_MAX 11
@@ -89,19 +76,31 @@
#define INAT_VARIANT (1 << (INAT_FLAG_OFFS + 4))
#define INAT_VEXOK (1 << (INAT_FLAG_OFFS + 5))
#define INAT_VEXONLY (1 << (INAT_FLAG_OFFS + 6))
+#define INAT_EVEXONLY (1 << (INAT_FLAG_OFFS + 7))
/* Attribute making macros for attribute tables */
#define INAT_MAKE_PREFIX(pfx) (pfx << INAT_PFX_OFFS)
#define INAT_MAKE_ESCAPE(esc) (esc << INAT_ESC_OFFS)
#define INAT_MAKE_GROUP(grp) ((grp << INAT_GRP_OFFS) | INAT_MODRM)
#define INAT_MAKE_IMM(imm) (imm << INAT_IMM_OFFS)
+/* Identifiers for segment registers */
+#define INAT_SEG_REG_IGNORE 0
+#define INAT_SEG_REG_DEFAULT 1
+#define INAT_SEG_REG_CS 2
+#define INAT_SEG_REG_SS 3
+#define INAT_SEG_REG_DS 4
+#define INAT_SEG_REG_ES 5
+#define INAT_SEG_REG_FS 6
+#define INAT_SEG_REG_GS 7
+
/* Attribute search APIs */
extern insn_attr_t inat_get_opcode_attribute(insn_byte_t opcode);
+extern int inat_get_last_prefix_id(insn_byte_t last_pfx);
extern insn_attr_t inat_get_escape_attribute(insn_byte_t opcode,
- insn_byte_t last_pfx,
+ int lpfx_id,
insn_attr_t esc_attr);
extern insn_attr_t inat_get_group_attribute(insn_byte_t modrm,
- insn_byte_t last_pfx,
+ int lpfx_id,
insn_attr_t esc_attr);
extern insn_attr_t inat_get_avx_attribute(insn_byte_t opcode,
insn_byte_t vex_m,
@@ -140,7 +139,13 @@ static inline int inat_last_prefix_id(insn_attr_t attr)
static inline int inat_is_vex_prefix(insn_attr_t attr)
{
attr &= INAT_PFX_MASK;
- return attr == INAT_PFX_VEX2 || attr == INAT_PFX_VEX3;
+ return attr == INAT_PFX_VEX2 || attr == INAT_PFX_VEX3 ||
+ attr == INAT_PFX_EVEX;
+}
+
+static inline int inat_is_evex_prefix(insn_attr_t attr)
+{
+ return (attr & INAT_PFX_MASK) == INAT_PFX_EVEX;
}
static inline int inat_is_vex3_prefix(insn_attr_t attr)
@@ -215,6 +220,11 @@ static inline int inat_accept_vex(insn_attr_t attr)
static inline int inat_must_vex(insn_attr_t attr)
{
- return attr & INAT_VEXONLY;
+ return attr & (INAT_VEXONLY | INAT_EVEXONLY);
+}
+
+static inline int inat_must_evex(insn_attr_t attr)
+{
+ return attr & INAT_EVEXONLY;
}
#endif
diff --git a/arch/x86/include/asm/inat_types.h b/arch/x86/include/asm/inat_types.h
index cb3c20ce39cf..b047efa9ddc2 100644
--- a/arch/x86/include/asm/inat_types.h
+++ b/arch/x86/include/asm/inat_types.h
@@ -1,24 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_X86_INAT_TYPES_H
#define _ASM_X86_INAT_TYPES_H
/*
* x86 instruction attributes
*
* Written by Masami Hiramatsu <mhiramat@redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
*/
/* Instruction attributes */
diff --git a/arch/x86/include/asm/init.h b/arch/x86/include/asm/init.h
index 8dbe353e41e1..5f1d3c421f68 100644
--- a/arch/x86/include/asm/init.h
+++ b/arch/x86/include/asm/init.h
@@ -1,18 +1,17 @@
-#ifndef _ASM_X86_INIT_32_H
-#define _ASM_X86_INIT_32_H
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_INIT_H
+#define _ASM_X86_INIT_H
-#ifdef CONFIG_X86_32
-extern void __init early_ioremap_page_table_range_init(void);
-#endif
+struct x86_mapping_info {
+ void *(*alloc_pgt_page)(void *); /* allocate buf for page table */
+ void *context; /* context for alloc_pgt_page */
+ unsigned long page_flag; /* page flag for PMD or PUD entry */
+ unsigned long offset; /* ident mapping offset */
+ bool direct_gbpages; /* PUD level 1GB page support */
+ unsigned long kernpg_flag; /* kernel pagetable flag override */
+};
-extern unsigned long __init
-kernel_physical_mapping_init(unsigned long start,
- unsigned long end,
- unsigned long page_size_mask);
+int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page,
+ unsigned long pstart, unsigned long pend);
-
-extern unsigned long __initdata pgt_buf_start;
-extern unsigned long __meminitdata pgt_buf_end;
-extern unsigned long __meminitdata pgt_buf_top;
-
-#endif /* _ASM_X86_INIT_32_H */
+#endif /* _ASM_X86_INIT_H */
diff --git a/arch/x86/include/asm/insn-eval.h b/arch/x86/include/asm/insn-eval.h
new file mode 100644
index 000000000000..54368a43abf6
--- /dev/null
+++ b/arch/x86/include/asm/insn-eval.h
@@ -0,0 +1,47 @@
+#ifndef _ASM_X86_INSN_EVAL_H
+#define _ASM_X86_INSN_EVAL_H
+/*
+ * A collection of utility functions for x86 instruction analysis to be
+ * used in a kernel context. Useful when, for instance, making sense
+ * of the registers indicated by operands.
+ */
+
+#include <linux/compiler.h>
+#include <linux/bug.h>
+#include <linux/err.h>
+#include <asm/ptrace.h>
+
+#define INSN_CODE_SEG_ADDR_SZ(params) ((params >> 4) & 0xf)
+#define INSN_CODE_SEG_OPND_SZ(params) (params & 0xf)
+#define INSN_CODE_SEG_PARAMS(oper_sz, addr_sz) (oper_sz | (addr_sz << 4))
+
+int pt_regs_offset(struct pt_regs *regs, int regno);
+
+bool insn_has_rep_prefix(struct insn *insn);
+void __user *insn_get_addr_ref(struct insn *insn, struct pt_regs *regs);
+int insn_get_modrm_rm_off(struct insn *insn, struct pt_regs *regs);
+int insn_get_modrm_reg_off(struct insn *insn, struct pt_regs *regs);
+unsigned long *insn_get_modrm_reg_ptr(struct insn *insn, struct pt_regs *regs);
+unsigned long insn_get_seg_base(struct pt_regs *regs, int seg_reg_idx);
+int insn_get_code_seg_params(struct pt_regs *regs);
+int insn_get_effective_ip(struct pt_regs *regs, unsigned long *ip);
+int insn_fetch_from_user(struct pt_regs *regs,
+ unsigned char buf[MAX_INSN_SIZE]);
+int insn_fetch_from_user_inatomic(struct pt_regs *regs,
+ unsigned char buf[MAX_INSN_SIZE]);
+bool insn_decode_from_regs(struct insn *insn, struct pt_regs *regs,
+ unsigned char buf[MAX_INSN_SIZE], int buf_size);
+
+enum insn_mmio_type {
+ INSN_MMIO_DECODE_FAILED,
+ INSN_MMIO_WRITE,
+ INSN_MMIO_WRITE_IMM,
+ INSN_MMIO_READ,
+ INSN_MMIO_READ_ZERO_EXTEND,
+ INSN_MMIO_READ_SIGN_EXTEND,
+ INSN_MMIO_MOVS,
+};
+
+enum insn_mmio_type insn_decode_mmio(struct insn *insn, int *bytes);
+
+#endif /* _ASM_X86_INSN_EVAL_H */
diff --git a/arch/x86/include/asm/insn.h b/arch/x86/include/asm/insn.h
index 88c765e16410..1b29f58f730f 100644
--- a/arch/x86/include/asm/insn.h
+++ b/arch/x86/include/asm/insn.h
@@ -1,27 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_X86_INSN_H
#define _ASM_X86_INSN_H
/*
* x86 instruction analysis
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
* Copyright (C) IBM Corporation, 2009
*/
+#include <asm/byteorder.h>
/* insn_attr_t is defined in inat.h */
-#include <asm/inat.h>
+#include <asm/inat.h> /* __ignore_sync_check__ */
+
+#if defined(__BYTE_ORDER) ? __BYTE_ORDER == __LITTLE_ENDIAN : defined(__LITTLE_ENDIAN)
struct insn_field {
union {
@@ -33,6 +23,48 @@ struct insn_field {
unsigned char nbytes;
};
+static inline void insn_field_set(struct insn_field *p, insn_value_t v,
+ unsigned char n)
+{
+ p->value = v;
+ p->nbytes = n;
+}
+
+static inline void insn_set_byte(struct insn_field *p, unsigned char n,
+ insn_byte_t v)
+{
+ p->bytes[n] = v;
+}
+
+#else
+
+struct insn_field {
+ insn_value_t value;
+ union {
+ insn_value_t little;
+ insn_byte_t bytes[4];
+ };
+ /* !0 if we've run insn_get_xxx() for this field */
+ unsigned char got;
+ unsigned char nbytes;
+};
+
+static inline void insn_field_set(struct insn_field *p, insn_value_t v,
+ unsigned char n)
+{
+ p->value = v;
+ p->little = __cpu_to_le32(v);
+ p->nbytes = n;
+}
+
+static inline void insn_set_byte(struct insn_field *p, unsigned char n,
+ insn_byte_t v)
+{
+ p->bytes[n] = v;
+ p->value = __le32_to_cpu(p->little);
+}
+#endif
+
struct insn {
struct insn_field prefixes; /*
* Prefixes
@@ -58,6 +90,7 @@ struct insn {
struct insn_field immediate2; /* for 64bit imm or seg16 */
};
+ int emulate_prefix_size;
insn_attr_t attr;
unsigned char opnd_bytes;
unsigned char addr_bytes;
@@ -65,10 +98,11 @@ struct insn {
unsigned char x86_64;
const insn_byte_t *kaddr; /* kernel address of insn to analyze */
+ const insn_byte_t *end_kaddr; /* kernel address of last insn in buffer */
const insn_byte_t *next_byte;
};
-#define MAX_INSN_SIZE 16
+#define MAX_INSN_SIZE 15
#define X86_MODRM_MOD(modrm) (((modrm) & 0xc0) >> 6)
#define X86_MODRM_REG(modrm) (((modrm) & 0x38) >> 3)
@@ -90,26 +124,33 @@ struct insn {
#define X86_VEX_B(vex) ((vex) & 0x20) /* VEX3 Byte1 */
#define X86_VEX_L(vex) ((vex) & 0x04) /* VEX3 Byte2, VEX2 Byte1 */
/* VEX bit fields */
+#define X86_EVEX_M(vex) ((vex) & 0x07) /* EVEX Byte1 */
#define X86_VEX3_M(vex) ((vex) & 0x1f) /* VEX3 Byte1 */
#define X86_VEX2_M 1 /* VEX2.M always 1 */
#define X86_VEX_V(vex) (((vex) & 0x78) >> 3) /* VEX3 Byte2, VEX2 Byte1 */
#define X86_VEX_P(vex) ((vex) & 0x03) /* VEX3 Byte2, VEX2 Byte1 */
#define X86_VEX_M_MAX 0x1f /* VEX3.M Maximum value */
-/* The last prefix is needed for two-byte and three-byte opcodes */
-static inline insn_byte_t insn_last_prefix(struct insn *insn)
-{
- return insn->prefixes.bytes[3];
-}
+extern void insn_init(struct insn *insn, const void *kaddr, int buf_len, int x86_64);
+extern int insn_get_prefixes(struct insn *insn);
+extern int insn_get_opcode(struct insn *insn);
+extern int insn_get_modrm(struct insn *insn);
+extern int insn_get_sib(struct insn *insn);
+extern int insn_get_displacement(struct insn *insn);
+extern int insn_get_immediate(struct insn *insn);
+extern int insn_get_length(struct insn *insn);
-extern void insn_init(struct insn *insn, const void *kaddr, int x86_64);
-extern void insn_get_prefixes(struct insn *insn);
-extern void insn_get_opcode(struct insn *insn);
-extern void insn_get_modrm(struct insn *insn);
-extern void insn_get_sib(struct insn *insn);
-extern void insn_get_displacement(struct insn *insn);
-extern void insn_get_immediate(struct insn *insn);
-extern void insn_get_length(struct insn *insn);
+enum insn_mode {
+ INSN_MODE_32,
+ INSN_MODE_64,
+ /* Mode is determined by the current kernel build. */
+ INSN_MODE_KERN,
+ INSN_NUM_MODES,
+};
+
+extern int insn_decode(struct insn *insn, const void *kaddr, int buf_len, enum insn_mode m);
+
+#define insn_decode_kernel(_insn, _ptr) insn_decode((_insn), (_ptr), MAX_INSN_SIZE, INSN_MODE_KERN)
/* Attribute will be determined after getting ModRM (for opcode groups) */
static inline void insn_get_attribute(struct insn *insn)
@@ -120,29 +161,33 @@ static inline void insn_get_attribute(struct insn *insn)
/* Instruction uses RIP-relative addressing */
extern int insn_rip_relative(struct insn *insn);
-/* Init insn for kernel text */
-static inline void kernel_insn_init(struct insn *insn, const void *kaddr)
+static inline int insn_is_avx(struct insn *insn)
{
-#ifdef CONFIG_X86_64
- insn_init(insn, kaddr, 1);
-#else /* CONFIG_X86_32 */
- insn_init(insn, kaddr, 0);
-#endif
+ if (!insn->prefixes.got)
+ insn_get_prefixes(insn);
+ return (insn->vex_prefix.value != 0);
}
-static inline int insn_is_avx(struct insn *insn)
+static inline int insn_is_evex(struct insn *insn)
{
if (!insn->prefixes.got)
insn_get_prefixes(insn);
- return (insn->vex_prefix.value != 0);
+ return (insn->vex_prefix.nbytes == 4);
+}
+
+static inline int insn_has_emulate_prefix(struct insn *insn)
+{
+ return !!insn->emulate_prefix_size;
}
static inline insn_byte_t insn_vex_m_bits(struct insn *insn)
{
if (insn->vex_prefix.nbytes == 2) /* 2 bytes VEX */
return X86_VEX2_M;
- else
+ else if (insn->vex_prefix.nbytes == 3) /* 3 bytes VEX */
return X86_VEX3_M(insn->vex_prefix.bytes[1]);
+ else /* EVEX */
+ return X86_EVEX_M(insn->vex_prefix.bytes[1]);
}
static inline insn_byte_t insn_vex_p_bits(struct insn *insn)
@@ -153,6 +198,18 @@ static inline insn_byte_t insn_vex_p_bits(struct insn *insn)
return X86_VEX_P(insn->vex_prefix.bytes[2]);
}
+/* Get the last prefix id from last prefix or VEX prefix */
+static inline int insn_last_prefix_id(struct insn *insn)
+{
+ if (insn_is_avx(insn))
+ return insn_vex_p_bits(insn); /* VEX_p is a SIMD prefix id */
+
+ if (insn->prefixes.bytes[3])
+ return inat_get_last_prefix_id(insn->prefixes.bytes[3]);
+
+ return 0;
+}
+
/* Offset of each field from kaddr */
static inline int insn_offset_rex_prefix(struct insn *insn)
{
@@ -183,4 +240,37 @@ static inline int insn_offset_immediate(struct insn *insn)
return insn_offset_displacement(insn) + insn->displacement.nbytes;
}
+/**
+ * for_each_insn_prefix() -- Iterate prefixes in the instruction
+ * @insn: Pointer to struct insn.
+ * @idx: Index storage.
+ * @prefix: Prefix byte.
+ *
+ * Iterate prefix bytes of given @insn. Each prefix byte is stored in @prefix
+ * and the index is stored in @idx (note that this @idx is just for a cursor,
+ * do not change it.)
+ * Since prefixes.nbytes can be bigger than 4 if some prefixes
+ * are repeated, it cannot be used for looping over the prefixes.
+ */
+#define for_each_insn_prefix(insn, idx, prefix) \
+ for (idx = 0; idx < ARRAY_SIZE(insn->prefixes.bytes) && (prefix = insn->prefixes.bytes[idx]) != 0; idx++)
+
+#define POP_SS_OPCODE 0x1f
+#define MOV_SREG_OPCODE 0x8e
+
+/*
+ * Intel SDM Vol.3A 6.8.3 states;
+ * "Any single-step trap that would be delivered following the MOV to SS
+ * instruction or POP to SS instruction (because EFLAGS.TF is 1) is
+ * suppressed."
+ * This function returns true if @insn is MOV SS or POP SS. On these
+ * instructions, single stepping is suppressed.
+ */
+static inline int insn_masking_exception(struct insn *insn)
+{
+ return insn->opcode.bytes[0] == POP_SS_OPCODE ||
+ (insn->opcode.bytes[0] == MOV_SREG_OPCODE &&
+ X86_MODRM_REG(insn->modrm.bytes[0]) == 2);
+}
+
#endif /* _ASM_X86_INSN_H */
diff --git a/arch/x86/include/asm/inst.h b/arch/x86/include/asm/inst.h
index 280bf7fb6aba..438ccd4f3cc4 100644
--- a/arch/x86/include/asm/inst.h
+++ b/arch/x86/include/asm/inst.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Generate .byte code for some instructions not supported by old
* binutils.
@@ -9,130 +10,130 @@
#define REG_NUM_INVALID 100
-#define REG_TYPE_R64 0
-#define REG_TYPE_XMM 1
+#define REG_TYPE_R32 0
+#define REG_TYPE_R64 1
#define REG_TYPE_INVALID 100
- .macro R64_NUM opd r64
+ .macro R32_NUM opd r32
\opd = REG_NUM_INVALID
- .ifc \r64,%rax
+ .ifc \r32,%eax
\opd = 0
.endif
- .ifc \r64,%rcx
+ .ifc \r32,%ecx
\opd = 1
.endif
- .ifc \r64,%rdx
+ .ifc \r32,%edx
\opd = 2
.endif
- .ifc \r64,%rbx
+ .ifc \r32,%ebx
\opd = 3
.endif
- .ifc \r64,%rsp
+ .ifc \r32,%esp
\opd = 4
.endif
- .ifc \r64,%rbp
+ .ifc \r32,%ebp
\opd = 5
.endif
- .ifc \r64,%rsi
+ .ifc \r32,%esi
\opd = 6
.endif
- .ifc \r64,%rdi
+ .ifc \r32,%edi
\opd = 7
.endif
- .ifc \r64,%r8
+#ifdef CONFIG_X86_64
+ .ifc \r32,%r8d
\opd = 8
.endif
- .ifc \r64,%r9
+ .ifc \r32,%r9d
\opd = 9
.endif
- .ifc \r64,%r10
+ .ifc \r32,%r10d
\opd = 10
.endif
- .ifc \r64,%r11
+ .ifc \r32,%r11d
\opd = 11
.endif
- .ifc \r64,%r12
+ .ifc \r32,%r12d
\opd = 12
.endif
- .ifc \r64,%r13
+ .ifc \r32,%r13d
\opd = 13
.endif
- .ifc \r64,%r14
+ .ifc \r32,%r14d
\opd = 14
.endif
- .ifc \r64,%r15
+ .ifc \r32,%r15d
\opd = 15
.endif
+#endif
.endm
- .macro XMM_NUM opd xmm
+ .macro R64_NUM opd r64
\opd = REG_NUM_INVALID
- .ifc \xmm,%xmm0
+#ifdef CONFIG_X86_64
+ .ifc \r64,%rax
\opd = 0
.endif
- .ifc \xmm,%xmm1
+ .ifc \r64,%rcx
\opd = 1
.endif
- .ifc \xmm,%xmm2
+ .ifc \r64,%rdx
\opd = 2
.endif
- .ifc \xmm,%xmm3
+ .ifc \r64,%rbx
\opd = 3
.endif
- .ifc \xmm,%xmm4
+ .ifc \r64,%rsp
\opd = 4
.endif
- .ifc \xmm,%xmm5
+ .ifc \r64,%rbp
\opd = 5
.endif
- .ifc \xmm,%xmm6
+ .ifc \r64,%rsi
\opd = 6
.endif
- .ifc \xmm,%xmm7
+ .ifc \r64,%rdi
\opd = 7
.endif
- .ifc \xmm,%xmm8
+ .ifc \r64,%r8
\opd = 8
.endif
- .ifc \xmm,%xmm9
+ .ifc \r64,%r9
\opd = 9
.endif
- .ifc \xmm,%xmm10
+ .ifc \r64,%r10
\opd = 10
.endif
- .ifc \xmm,%xmm11
+ .ifc \r64,%r11
\opd = 11
.endif
- .ifc \xmm,%xmm12
+ .ifc \r64,%r12
\opd = 12
.endif
- .ifc \xmm,%xmm13
+ .ifc \r64,%r13
\opd = 13
.endif
- .ifc \xmm,%xmm14
+ .ifc \r64,%r14
\opd = 14
.endif
- .ifc \xmm,%xmm15
+ .ifc \r64,%r15
\opd = 15
.endif
+#endif
.endm
.macro REG_TYPE type reg
+ R32_NUM reg_type_r32 \reg
R64_NUM reg_type_r64 \reg
- XMM_NUM reg_type_xmm \reg
.if reg_type_r64 <> REG_NUM_INVALID
\type = REG_TYPE_R64
- .elseif reg_type_xmm <> REG_NUM_INVALID
- \type = REG_TYPE_XMM
+ .elseif reg_type_r32 <> REG_NUM_INVALID
+ \type = REG_TYPE_R32
.else
\type = REG_TYPE_INVALID
.endif
.endm
- .macro PFX_OPD_SIZE
- .byte 0x66
- .endm
-
.macro PFX_REX opd1 opd2 W=0
.if ((\opd1 | \opd2) & 8) || \W
.byte 0x40 | ((\opd1 & 8) >> 3) | ((\opd2 & 8) >> 1) | (\W << 3)
@@ -142,99 +143,6 @@
.macro MODRM mod opd1 opd2
.byte \mod | (\opd1 & 7) | ((\opd2 & 7) << 3)
.endm
-
- .macro PSHUFB_XMM xmm1 xmm2
- XMM_NUM pshufb_opd1 \xmm1
- XMM_NUM pshufb_opd2 \xmm2
- PFX_OPD_SIZE
- PFX_REX pshufb_opd1 pshufb_opd2
- .byte 0x0f, 0x38, 0x00
- MODRM 0xc0 pshufb_opd1 pshufb_opd2
- .endm
-
- .macro PCLMULQDQ imm8 xmm1 xmm2
- XMM_NUM clmul_opd1 \xmm1
- XMM_NUM clmul_opd2 \xmm2
- PFX_OPD_SIZE
- PFX_REX clmul_opd1 clmul_opd2
- .byte 0x0f, 0x3a, 0x44
- MODRM 0xc0 clmul_opd1 clmul_opd2
- .byte \imm8
- .endm
-
- .macro AESKEYGENASSIST rcon xmm1 xmm2
- XMM_NUM aeskeygen_opd1 \xmm1
- XMM_NUM aeskeygen_opd2 \xmm2
- PFX_OPD_SIZE
- PFX_REX aeskeygen_opd1 aeskeygen_opd2
- .byte 0x0f, 0x3a, 0xdf
- MODRM 0xc0 aeskeygen_opd1 aeskeygen_opd2
- .byte \rcon
- .endm
-
- .macro AESIMC xmm1 xmm2
- XMM_NUM aesimc_opd1 \xmm1
- XMM_NUM aesimc_opd2 \xmm2
- PFX_OPD_SIZE
- PFX_REX aesimc_opd1 aesimc_opd2
- .byte 0x0f, 0x38, 0xdb
- MODRM 0xc0 aesimc_opd1 aesimc_opd2
- .endm
-
- .macro AESENC xmm1 xmm2
- XMM_NUM aesenc_opd1 \xmm1
- XMM_NUM aesenc_opd2 \xmm2
- PFX_OPD_SIZE
- PFX_REX aesenc_opd1 aesenc_opd2
- .byte 0x0f, 0x38, 0xdc
- MODRM 0xc0 aesenc_opd1 aesenc_opd2
- .endm
-
- .macro AESENCLAST xmm1 xmm2
- XMM_NUM aesenclast_opd1 \xmm1
- XMM_NUM aesenclast_opd2 \xmm2
- PFX_OPD_SIZE
- PFX_REX aesenclast_opd1 aesenclast_opd2
- .byte 0x0f, 0x38, 0xdd
- MODRM 0xc0 aesenclast_opd1 aesenclast_opd2
- .endm
-
- .macro AESDEC xmm1 xmm2
- XMM_NUM aesdec_opd1 \xmm1
- XMM_NUM aesdec_opd2 \xmm2
- PFX_OPD_SIZE
- PFX_REX aesdec_opd1 aesdec_opd2
- .byte 0x0f, 0x38, 0xde
- MODRM 0xc0 aesdec_opd1 aesdec_opd2
- .endm
-
- .macro AESDECLAST xmm1 xmm2
- XMM_NUM aesdeclast_opd1 \xmm1
- XMM_NUM aesdeclast_opd2 \xmm2
- PFX_OPD_SIZE
- PFX_REX aesdeclast_opd1 aesdeclast_opd2
- .byte 0x0f, 0x38, 0xdf
- MODRM 0xc0 aesdeclast_opd1 aesdeclast_opd2
- .endm
-
- .macro MOVQ_R64_XMM opd1 opd2
- REG_TYPE movq_r64_xmm_opd1_type \opd1
- .if movq_r64_xmm_opd1_type == REG_TYPE_XMM
- XMM_NUM movq_r64_xmm_opd1 \opd1
- R64_NUM movq_r64_xmm_opd2 \opd2
- .else
- R64_NUM movq_r64_xmm_opd1 \opd1
- XMM_NUM movq_r64_xmm_opd2 \opd2
- .endif
- PFX_OPD_SIZE
- PFX_REX movq_r64_xmm_opd1 movq_r64_xmm_opd2 1
- .if movq_r64_xmm_opd1_type == REG_TYPE_XMM
- .byte 0x0f, 0x7e
- .else
- .byte 0x0f, 0x6e
- .endif
- MODRM 0xc0 movq_r64_xmm_opd1 movq_r64_xmm_opd2
- .endm
#endif
#endif
diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h
new file mode 100644
index 000000000000..b3af2d45bbbb
--- /dev/null
+++ b/arch/x86/include/asm/intel-family.h
@@ -0,0 +1,169 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_INTEL_FAMILY_H
+#define _ASM_X86_INTEL_FAMILY_H
+
+/*
+ * "Big Core" Processors (Branded as Core, Xeon, etc...)
+ *
+ * While adding a new CPUID for a new microarchitecture, add a new
+ * group to keep logically sorted out in chronological order. Within
+ * that group keep the CPUID for the variants sorted by model number.
+ *
+ * The defined symbol names have the following form:
+ * INTEL_FAM6{OPTFAMILY}_{MICROARCH}{OPTDIFF}
+ * where:
+ * OPTFAMILY Describes the family of CPUs that this belongs to. Default
+ * is assumed to be "_CORE" (and should be omitted). Other values
+ * currently in use are _ATOM and _XEON_PHI
+ * MICROARCH Is the code name for the micro-architecture for this core.
+ * N.B. Not the platform name.
+ * OPTDIFF If needed, a short string to differentiate by market segment.
+ *
+ * Common OPTDIFFs:
+ *
+ * - regular client parts
+ * _L - regular mobile parts
+ * _G - parts with extra graphics on
+ * _X - regular server parts
+ * _D - micro server parts
+ * _N,_P - other mobile parts
+ * _S - other client parts
+ *
+ * Historical OPTDIFFs:
+ *
+ * _EP - 2 socket server parts
+ * _EX - 4+ socket server parts
+ *
+ * The #define line may optionally include a comment including platform or core
+ * names. An exception is made for skylake/kabylake where steppings seem to have gotten
+ * their own names :-(
+ */
+
+/* Wildcard match for FAM6 so X86_MATCH_INTEL_FAM6_MODEL(ANY) works */
+#define INTEL_FAM6_ANY X86_MODEL_ANY
+
+#define INTEL_FAM6_CORE_YONAH 0x0E
+
+#define INTEL_FAM6_CORE2_MEROM 0x0F
+#define INTEL_FAM6_CORE2_MEROM_L 0x16
+#define INTEL_FAM6_CORE2_PENRYN 0x17
+#define INTEL_FAM6_CORE2_DUNNINGTON 0x1D
+
+#define INTEL_FAM6_NEHALEM 0x1E
+#define INTEL_FAM6_NEHALEM_G 0x1F /* Auburndale / Havendale */
+#define INTEL_FAM6_NEHALEM_EP 0x1A
+#define INTEL_FAM6_NEHALEM_EX 0x2E
+
+#define INTEL_FAM6_WESTMERE 0x25
+#define INTEL_FAM6_WESTMERE_EP 0x2C
+#define INTEL_FAM6_WESTMERE_EX 0x2F
+
+#define INTEL_FAM6_SANDYBRIDGE 0x2A
+#define INTEL_FAM6_SANDYBRIDGE_X 0x2D
+#define INTEL_FAM6_IVYBRIDGE 0x3A
+#define INTEL_FAM6_IVYBRIDGE_X 0x3E
+
+#define INTEL_FAM6_HASWELL 0x3C
+#define INTEL_FAM6_HASWELL_X 0x3F
+#define INTEL_FAM6_HASWELL_L 0x45
+#define INTEL_FAM6_HASWELL_G 0x46
+
+#define INTEL_FAM6_BROADWELL 0x3D
+#define INTEL_FAM6_BROADWELL_G 0x47
+#define INTEL_FAM6_BROADWELL_X 0x4F
+#define INTEL_FAM6_BROADWELL_D 0x56
+
+#define INTEL_FAM6_SKYLAKE_L 0x4E /* Sky Lake */
+#define INTEL_FAM6_SKYLAKE 0x5E /* Sky Lake */
+#define INTEL_FAM6_SKYLAKE_X 0x55 /* Sky Lake */
+/* CASCADELAKE_X 0x55 Sky Lake -- s: 7 */
+/* COOPERLAKE_X 0x55 Sky Lake -- s: 11 */
+
+#define INTEL_FAM6_KABYLAKE_L 0x8E /* Sky Lake */
+/* AMBERLAKE_L 0x8E Sky Lake -- s: 9 */
+/* COFFEELAKE_L 0x8E Sky Lake -- s: 10 */
+/* WHISKEYLAKE_L 0x8E Sky Lake -- s: 11,12 */
+
+#define INTEL_FAM6_KABYLAKE 0x9E /* Sky Lake */
+/* COFFEELAKE 0x9E Sky Lake -- s: 10-13 */
+
+#define INTEL_FAM6_COMETLAKE 0xA5 /* Sky Lake */
+#define INTEL_FAM6_COMETLAKE_L 0xA6 /* Sky Lake */
+
+#define INTEL_FAM6_CANNONLAKE_L 0x66 /* Palm Cove */
+
+#define INTEL_FAM6_ICELAKE_X 0x6A /* Sunny Cove */
+#define INTEL_FAM6_ICELAKE_D 0x6C /* Sunny Cove */
+#define INTEL_FAM6_ICELAKE 0x7D /* Sunny Cove */
+#define INTEL_FAM6_ICELAKE_L 0x7E /* Sunny Cove */
+#define INTEL_FAM6_ICELAKE_NNPI 0x9D /* Sunny Cove */
+
+#define INTEL_FAM6_LAKEFIELD 0x8A /* Sunny Cove / Tremont */
+
+#define INTEL_FAM6_ROCKETLAKE 0xA7 /* Cypress Cove */
+
+#define INTEL_FAM6_TIGERLAKE_L 0x8C /* Willow Cove */
+#define INTEL_FAM6_TIGERLAKE 0x8D /* Willow Cove */
+
+#define INTEL_FAM6_SAPPHIRERAPIDS_X 0x8F /* Golden Cove */
+
+#define INTEL_FAM6_EMERALDRAPIDS_X 0xCF
+
+#define INTEL_FAM6_GRANITERAPIDS_X 0xAD
+#define INTEL_FAM6_GRANITERAPIDS_D 0xAE
+
+#define INTEL_FAM6_ALDERLAKE 0x97 /* Golden Cove / Gracemont */
+#define INTEL_FAM6_ALDERLAKE_L 0x9A /* Golden Cove / Gracemont */
+#define INTEL_FAM6_ALDERLAKE_N 0xBE
+
+#define INTEL_FAM6_RAPTORLAKE 0xB7
+#define INTEL_FAM6_RAPTORLAKE_P 0xBA
+#define INTEL_FAM6_RAPTORLAKE_S 0xBF
+
+#define INTEL_FAM6_METEORLAKE 0xAC
+#define INTEL_FAM6_METEORLAKE_L 0xAA
+
+#define INTEL_FAM6_LUNARLAKE_M 0xBD
+
+#define INTEL_FAM6_ARROWLAKE 0xC6
+
+/* "Small Core" Processors (Atom/E-Core) */
+
+#define INTEL_FAM6_ATOM_BONNELL 0x1C /* Diamondville, Pineview */
+#define INTEL_FAM6_ATOM_BONNELL_MID 0x26 /* Silverthorne, Lincroft */
+
+#define INTEL_FAM6_ATOM_SALTWELL 0x36 /* Cedarview */
+#define INTEL_FAM6_ATOM_SALTWELL_MID 0x27 /* Penwell */
+#define INTEL_FAM6_ATOM_SALTWELL_TABLET 0x35 /* Cloverview */
+
+#define INTEL_FAM6_ATOM_SILVERMONT 0x37 /* Bay Trail, Valleyview */
+#define INTEL_FAM6_ATOM_SILVERMONT_D 0x4D /* Avaton, Rangely */
+#define INTEL_FAM6_ATOM_SILVERMONT_MID 0x4A /* Merriefield */
+
+#define INTEL_FAM6_ATOM_AIRMONT 0x4C /* Cherry Trail, Braswell */
+#define INTEL_FAM6_ATOM_AIRMONT_MID 0x5A /* Moorefield */
+#define INTEL_FAM6_ATOM_AIRMONT_NP 0x75 /* Lightning Mountain */
+
+#define INTEL_FAM6_ATOM_GOLDMONT 0x5C /* Apollo Lake */
+#define INTEL_FAM6_ATOM_GOLDMONT_D 0x5F /* Denverton */
+
+/* Note: the micro-architecture is "Goldmont Plus" */
+#define INTEL_FAM6_ATOM_GOLDMONT_PLUS 0x7A /* Gemini Lake */
+
+#define INTEL_FAM6_ATOM_TREMONT_D 0x86 /* Jacobsville */
+#define INTEL_FAM6_ATOM_TREMONT 0x96 /* Elkhart Lake */
+#define INTEL_FAM6_ATOM_TREMONT_L 0x9C /* Jasper Lake */
+
+#define INTEL_FAM6_SIERRAFOREST_X 0xAF
+
+#define INTEL_FAM6_GRANDRIDGE 0xB6
+
+/* Xeon Phi */
+
+#define INTEL_FAM6_XEON_PHI_KNL 0x57 /* Knights Landing */
+#define INTEL_FAM6_XEON_PHI_KNM 0x85 /* Knights Mill */
+
+/* Family 5 */
+#define INTEL_FAM5_QUARK_X1000 0x09 /* Quark X1000 SoC */
+
+#endif /* _ASM_X86_INTEL_FAMILY_H */
diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
new file mode 100644
index 000000000000..a3abdcd89a32
--- /dev/null
+++ b/arch/x86/include/asm/intel-mid.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel MID specific setup code
+ *
+ * (C) Copyright 2009, 2021 Intel Corporation
+ */
+#ifndef _ASM_X86_INTEL_MID_H
+#define _ASM_X86_INTEL_MID_H
+
+#include <linux/pci.h>
+
+extern int intel_mid_pci_init(void);
+extern int intel_mid_pci_set_power_state(struct pci_dev *pdev, pci_power_t state);
+extern pci_power_t intel_mid_pci_get_power_state(struct pci_dev *pdev);
+
+extern void intel_mid_pwr_power_off(void);
+
+#define INTEL_MID_PWR_LSS_OFFSET 4
+#define INTEL_MID_PWR_LSS_TYPE (1 << 7)
+
+extern int intel_mid_pwr_get_lss_id(struct pci_dev *pdev);
+
+#endif /* _ASM_X86_INTEL_MID_H */
diff --git a/arch/x86/include/asm/intel_ds.h b/arch/x86/include/asm/intel_ds.h
new file mode 100644
index 000000000000..2f9eeb5c3069
--- /dev/null
+++ b/arch/x86/include/asm/intel_ds.h
@@ -0,0 +1,38 @@
+#ifndef _ASM_INTEL_DS_H
+#define _ASM_INTEL_DS_H
+
+#include <linux/percpu-defs.h>
+
+#define BTS_BUFFER_SIZE (PAGE_SIZE << 4)
+#define PEBS_BUFFER_SIZE (PAGE_SIZE << 4)
+
+/* The maximal number of PEBS events: */
+#define MAX_PEBS_EVENTS_FMT4 8
+#define MAX_PEBS_EVENTS 32
+#define MAX_FIXED_PEBS_EVENTS 16
+
+/*
+ * A debug store configuration.
+ *
+ * We only support architectures that use 64bit fields.
+ */
+struct debug_store {
+ u64 bts_buffer_base;
+ u64 bts_index;
+ u64 bts_absolute_maximum;
+ u64 bts_interrupt_threshold;
+ u64 pebs_buffer_base;
+ u64 pebs_index;
+ u64 pebs_absolute_maximum;
+ u64 pebs_interrupt_threshold;
+ u64 pebs_event_reset[MAX_PEBS_EVENTS + MAX_FIXED_PEBS_EVENTS];
+} __aligned(PAGE_SIZE);
+
+DECLARE_PER_CPU_PAGE_ALIGNED(struct debug_store, cpu_debug_store);
+
+struct debug_store_buffers {
+ char bts_buffer[BTS_BUFFER_SIZE];
+ char pebs_buffer[PEBS_BUFFER_SIZE];
+};
+
+#endif
diff --git a/arch/x86/include/asm/intel_pconfig.h b/arch/x86/include/asm/intel_pconfig.h
new file mode 100644
index 000000000000..994638ef171b
--- /dev/null
+++ b/arch/x86/include/asm/intel_pconfig.h
@@ -0,0 +1,65 @@
+#ifndef _ASM_X86_INTEL_PCONFIG_H
+#define _ASM_X86_INTEL_PCONFIG_H
+
+#include <asm/asm.h>
+#include <asm/processor.h>
+
+enum pconfig_target {
+ INVALID_TARGET = 0,
+ MKTME_TARGET = 1,
+ PCONFIG_TARGET_NR
+};
+
+int pconfig_target_supported(enum pconfig_target target);
+
+enum pconfig_leaf {
+ MKTME_KEY_PROGRAM = 0,
+ PCONFIG_LEAF_INVALID,
+};
+
+#define PCONFIG ".byte 0x0f, 0x01, 0xc5"
+
+/* Defines and structure for MKTME_KEY_PROGRAM of PCONFIG instruction */
+
+/* mktme_key_program::keyid_ctrl COMMAND, bits [7:0] */
+#define MKTME_KEYID_SET_KEY_DIRECT 0
+#define MKTME_KEYID_SET_KEY_RANDOM 1
+#define MKTME_KEYID_CLEAR_KEY 2
+#define MKTME_KEYID_NO_ENCRYPT 3
+
+/* mktme_key_program::keyid_ctrl ENC_ALG, bits [23:8] */
+#define MKTME_AES_XTS_128 (1 << 8)
+
+/* Return codes from the PCONFIG MKTME_KEY_PROGRAM */
+#define MKTME_PROG_SUCCESS 0
+#define MKTME_INVALID_PROG_CMD 1
+#define MKTME_ENTROPY_ERROR 2
+#define MKTME_INVALID_KEYID 3
+#define MKTME_INVALID_ENC_ALG 4
+#define MKTME_DEVICE_BUSY 5
+
+/* Hardware requires the structure to be 256 byte aligned. Otherwise #GP(0). */
+struct mktme_key_program {
+ u16 keyid;
+ u32 keyid_ctrl;
+ u8 __rsvd[58];
+ u8 key_field_1[64];
+ u8 key_field_2[64];
+} __packed __aligned(256);
+
+static inline int mktme_key_program(struct mktme_key_program *key_program)
+{
+ unsigned long rax = MKTME_KEY_PROGRAM;
+
+ if (!pconfig_target_supported(MKTME_TARGET))
+ return -ENXIO;
+
+ asm volatile(PCONFIG
+ : "=a" (rax), "=b" (key_program)
+ : "0" (rax), "1" (key_program)
+ : "memory", "cc");
+
+ return rax;
+}
+
+#endif /* _ASM_X86_INTEL_PCONFIG_H */
diff --git a/arch/x86/include/asm/intel_pt.h b/arch/x86/include/asm/intel_pt.h
new file mode 100644
index 000000000000..c796e9bc98b6
--- /dev/null
+++ b/arch/x86/include/asm/intel_pt.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_INTEL_PT_H
+#define _ASM_X86_INTEL_PT_H
+
+#define PT_CPUID_LEAVES 2
+#define PT_CPUID_REGS_NUM 4 /* number of registers (eax, ebx, ecx, edx) */
+
+enum pt_capabilities {
+ PT_CAP_max_subleaf = 0,
+ PT_CAP_cr3_filtering,
+ PT_CAP_psb_cyc,
+ PT_CAP_ip_filtering,
+ PT_CAP_mtc,
+ PT_CAP_ptwrite,
+ PT_CAP_power_event_trace,
+ PT_CAP_event_trace,
+ PT_CAP_tnt_disable,
+ PT_CAP_topa_output,
+ PT_CAP_topa_multiple_entries,
+ PT_CAP_single_range_output,
+ PT_CAP_output_subsys,
+ PT_CAP_payloads_lip,
+ PT_CAP_num_address_ranges,
+ PT_CAP_mtc_periods,
+ PT_CAP_cycle_thresholds,
+ PT_CAP_psb_periods,
+};
+
+#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_INTEL)
+void cpu_emergency_stop_pt(void);
+extern u32 intel_pt_validate_hw_cap(enum pt_capabilities cap);
+extern u32 intel_pt_validate_cap(u32 *caps, enum pt_capabilities cap);
+extern int is_intel_pt_event(struct perf_event *event);
+#else
+static inline void cpu_emergency_stop_pt(void) {}
+static inline u32 intel_pt_validate_hw_cap(enum pt_capabilities cap) { return 0; }
+static inline u32 intel_pt_validate_cap(u32 *caps, enum pt_capabilities capability) { return 0; }
+static inline int is_intel_pt_event(struct perf_event *event) { return 0; }
+#endif
+
+#endif /* _ASM_X86_INTEL_PT_H */
diff --git a/arch/x86/include/asm/intel_punit_ipc.h b/arch/x86/include/asm/intel_punit_ipc.h
new file mode 100644
index 000000000000..ce16da719596
--- /dev/null
+++ b/arch/x86/include/asm/intel_punit_ipc.h
@@ -0,0 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_INTEL_PUNIT_IPC_H_
+#define _ASM_X86_INTEL_PUNIT_IPC_H_
+
+/*
+ * Three types of 8bit P-Unit IPC commands are supported,
+ * bit[7:6]: [00]: BIOS; [01]: GTD; [10]: ISPD.
+ */
+typedef enum {
+ BIOS_IPC = 0,
+ GTDRIVER_IPC,
+ ISPDRIVER_IPC,
+ RESERVED_IPC,
+} IPC_TYPE;
+
+#define IPC_TYPE_OFFSET 6
+#define IPC_PUNIT_BIOS_CMD_BASE (BIOS_IPC << IPC_TYPE_OFFSET)
+#define IPC_PUNIT_GTD_CMD_BASE (GTDDRIVER_IPC << IPC_TYPE_OFFSET)
+#define IPC_PUNIT_ISPD_CMD_BASE (ISPDRIVER_IPC << IPC_TYPE_OFFSET)
+#define IPC_PUNIT_CMD_TYPE_MASK (RESERVED_IPC << IPC_TYPE_OFFSET)
+
+/* BIOS => Pcode commands */
+#define IPC_PUNIT_BIOS_ZERO (IPC_PUNIT_BIOS_CMD_BASE | 0x00)
+#define IPC_PUNIT_BIOS_VR_INTERFACE (IPC_PUNIT_BIOS_CMD_BASE | 0x01)
+#define IPC_PUNIT_BIOS_READ_PCS (IPC_PUNIT_BIOS_CMD_BASE | 0x02)
+#define IPC_PUNIT_BIOS_WRITE_PCS (IPC_PUNIT_BIOS_CMD_BASE | 0x03)
+#define IPC_PUNIT_BIOS_READ_PCU_CONFIG (IPC_PUNIT_BIOS_CMD_BASE | 0x04)
+#define IPC_PUNIT_BIOS_WRITE_PCU_CONFIG (IPC_PUNIT_BIOS_CMD_BASE | 0x05)
+#define IPC_PUNIT_BIOS_READ_PL1_SETTING (IPC_PUNIT_BIOS_CMD_BASE | 0x06)
+#define IPC_PUNIT_BIOS_WRITE_PL1_SETTING (IPC_PUNIT_BIOS_CMD_BASE | 0x07)
+#define IPC_PUNIT_BIOS_TRIGGER_VDD_RAM (IPC_PUNIT_BIOS_CMD_BASE | 0x08)
+#define IPC_PUNIT_BIOS_READ_TELE_INFO (IPC_PUNIT_BIOS_CMD_BASE | 0x09)
+#define IPC_PUNIT_BIOS_READ_TELE_TRACE_CTRL (IPC_PUNIT_BIOS_CMD_BASE | 0x0a)
+#define IPC_PUNIT_BIOS_WRITE_TELE_TRACE_CTRL (IPC_PUNIT_BIOS_CMD_BASE | 0x0b)
+#define IPC_PUNIT_BIOS_READ_TELE_EVENT_CTRL (IPC_PUNIT_BIOS_CMD_BASE | 0x0c)
+#define IPC_PUNIT_BIOS_WRITE_TELE_EVENT_CTRL (IPC_PUNIT_BIOS_CMD_BASE | 0x0d)
+#define IPC_PUNIT_BIOS_READ_TELE_TRACE (IPC_PUNIT_BIOS_CMD_BASE | 0x0e)
+#define IPC_PUNIT_BIOS_WRITE_TELE_TRACE (IPC_PUNIT_BIOS_CMD_BASE | 0x0f)
+#define IPC_PUNIT_BIOS_READ_TELE_EVENT (IPC_PUNIT_BIOS_CMD_BASE | 0x10)
+#define IPC_PUNIT_BIOS_WRITE_TELE_EVENT (IPC_PUNIT_BIOS_CMD_BASE | 0x11)
+#define IPC_PUNIT_BIOS_READ_MODULE_TEMP (IPC_PUNIT_BIOS_CMD_BASE | 0x12)
+#define IPC_PUNIT_BIOS_RESERVED (IPC_PUNIT_BIOS_CMD_BASE | 0x13)
+#define IPC_PUNIT_BIOS_READ_VOLTAGE_OVER (IPC_PUNIT_BIOS_CMD_BASE | 0x14)
+#define IPC_PUNIT_BIOS_WRITE_VOLTAGE_OVER (IPC_PUNIT_BIOS_CMD_BASE | 0x15)
+#define IPC_PUNIT_BIOS_READ_RATIO_OVER (IPC_PUNIT_BIOS_CMD_BASE | 0x16)
+#define IPC_PUNIT_BIOS_WRITE_RATIO_OVER (IPC_PUNIT_BIOS_CMD_BASE | 0x17)
+#define IPC_PUNIT_BIOS_READ_VF_GL_CTRL (IPC_PUNIT_BIOS_CMD_BASE | 0x18)
+#define IPC_PUNIT_BIOS_WRITE_VF_GL_CTRL (IPC_PUNIT_BIOS_CMD_BASE | 0x19)
+#define IPC_PUNIT_BIOS_READ_FM_SOC_TEMP_THRESH (IPC_PUNIT_BIOS_CMD_BASE | 0x1a)
+#define IPC_PUNIT_BIOS_WRITE_FM_SOC_TEMP_THRESH (IPC_PUNIT_BIOS_CMD_BASE | 0x1b)
+
+/* GT Driver => Pcode commands */
+#define IPC_PUNIT_GTD_ZERO (IPC_PUNIT_GTD_CMD_BASE | 0x00)
+#define IPC_PUNIT_GTD_CONFIG (IPC_PUNIT_GTD_CMD_BASE | 0x01)
+#define IPC_PUNIT_GTD_READ_ICCP_LIC_CDYN_SCAL (IPC_PUNIT_GTD_CMD_BASE | 0x02)
+#define IPC_PUNIT_GTD_WRITE_ICCP_LIC_CDYN_SCAL (IPC_PUNIT_GTD_CMD_BASE | 0x03)
+#define IPC_PUNIT_GTD_GET_WM_VAL (IPC_PUNIT_GTD_CMD_BASE | 0x06)
+#define IPC_PUNIT_GTD_WRITE_CONFIG_WISHREQ (IPC_PUNIT_GTD_CMD_BASE | 0x07)
+#define IPC_PUNIT_GTD_READ_REQ_DUTY_CYCLE (IPC_PUNIT_GTD_CMD_BASE | 0x16)
+#define IPC_PUNIT_GTD_DIS_VOL_FREQ_CHG_REQUEST (IPC_PUNIT_GTD_CMD_BASE | 0x17)
+#define IPC_PUNIT_GTD_DYNA_DUTY_CYCLE_CTRL (IPC_PUNIT_GTD_CMD_BASE | 0x1a)
+#define IPC_PUNIT_GTD_DYNA_DUTY_CYCLE_TUNING (IPC_PUNIT_GTD_CMD_BASE | 0x1c)
+
+/* ISP Driver => Pcode commands */
+#define IPC_PUNIT_ISPD_ZERO (IPC_PUNIT_ISPD_CMD_BASE | 0x00)
+#define IPC_PUNIT_ISPD_CONFIG (IPC_PUNIT_ISPD_CMD_BASE | 0x01)
+#define IPC_PUNIT_ISPD_GET_ISP_LTR_VAL (IPC_PUNIT_ISPD_CMD_BASE | 0x02)
+#define IPC_PUNIT_ISPD_ACCESS_IU_FREQ_BOUNDS (IPC_PUNIT_ISPD_CMD_BASE | 0x03)
+#define IPC_PUNIT_ISPD_READ_CDYN_LEVEL (IPC_PUNIT_ISPD_CMD_BASE | 0x04)
+#define IPC_PUNIT_ISPD_WRITE_CDYN_LEVEL (IPC_PUNIT_ISPD_CMD_BASE | 0x05)
+
+/* Error codes */
+#define IPC_PUNIT_ERR_SUCCESS 0
+#define IPC_PUNIT_ERR_INVALID_CMD 1
+#define IPC_PUNIT_ERR_INVALID_PARAMETER 2
+#define IPC_PUNIT_ERR_CMD_TIMEOUT 3
+#define IPC_PUNIT_ERR_CMD_LOCKED 4
+#define IPC_PUNIT_ERR_INVALID_VR_ID 5
+#define IPC_PUNIT_ERR_VR_ERR 6
+
+#if IS_ENABLED(CONFIG_INTEL_PUNIT_IPC)
+
+int intel_punit_ipc_simple_command(int cmd, int para1, int para2);
+int intel_punit_ipc_command(u32 cmd, u32 para1, u32 para2, u32 *in, u32 *out);
+
+#else
+
+static inline int intel_punit_ipc_simple_command(int cmd,
+ int para1, int para2)
+{
+ return -ENODEV;
+}
+
+static inline int intel_punit_ipc_command(u32 cmd, u32 para1, u32 para2,
+ u32 *in, u32 *out)
+{
+ return -ENODEV;
+}
+
+#endif /* CONFIG_INTEL_PUNIT_IPC */
+
+#endif
diff --git a/arch/x86/include/asm/intel_scu_ipc.h b/arch/x86/include/asm/intel_scu_ipc.h
index 29f66793cc55..8537f597d20a 100644
--- a/arch/x86/include/asm/intel_scu_ipc.h
+++ b/arch/x86/include/asm/intel_scu_ipc.h
@@ -1,47 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_INTEL_SCU_IPC_H_
#define _ASM_X86_INTEL_SCU_IPC_H_
-#define IPCMSG_VRTC 0xFA /* Set vRTC device */
+#include <linux/ioport.h>
-/* Command id associated with message IPCMSG_VRTC */
-#define IPC_CMD_VRTC_SETTIME 1 /* Set time */
-#define IPC_CMD_VRTC_SETALARM 2 /* Set alarm */
+struct device;
+struct intel_scu_ipc_dev;
-/* Read single register */
-int intel_scu_ipc_ioread8(u16 addr, u8 *data);
+/**
+ * struct intel_scu_ipc_data - Data used to configure SCU IPC
+ * @mem: Base address of SCU IPC MMIO registers
+ * @irq: The IRQ number used for SCU (optional)
+ */
+struct intel_scu_ipc_data {
+ struct resource mem;
+ int irq;
+};
-/* Read two sequential registers */
-int intel_scu_ipc_ioread16(u16 addr, u16 *data);
+struct intel_scu_ipc_dev *
+__intel_scu_ipc_register(struct device *parent,
+ const struct intel_scu_ipc_data *scu_data,
+ struct module *owner);
-/* Read four sequential registers */
-int intel_scu_ipc_ioread32(u16 addr, u32 *data);
+#define intel_scu_ipc_register(parent, scu_data) \
+ __intel_scu_ipc_register(parent, scu_data, THIS_MODULE)
-/* Read a vector */
-int intel_scu_ipc_readv(u16 *addr, u8 *data, int len);
+void intel_scu_ipc_unregister(struct intel_scu_ipc_dev *scu);
-/* Write single register */
-int intel_scu_ipc_iowrite8(u16 addr, u8 data);
+struct intel_scu_ipc_dev *
+__devm_intel_scu_ipc_register(struct device *parent,
+ const struct intel_scu_ipc_data *scu_data,
+ struct module *owner);
-/* Write two sequential registers */
-int intel_scu_ipc_iowrite16(u16 addr, u16 data);
+#define devm_intel_scu_ipc_register(parent, scu_data) \
+ __devm_intel_scu_ipc_register(parent, scu_data, THIS_MODULE)
-/* Write four sequential registers */
-int intel_scu_ipc_iowrite32(u16 addr, u32 data);
+struct intel_scu_ipc_dev *intel_scu_ipc_dev_get(void);
+void intel_scu_ipc_dev_put(struct intel_scu_ipc_dev *scu);
+struct intel_scu_ipc_dev *devm_intel_scu_ipc_dev_get(struct device *dev);
-/* Write a vector */
-int intel_scu_ipc_writev(u16 *addr, u8 *data, int len);
+int intel_scu_ipc_dev_ioread8(struct intel_scu_ipc_dev *scu, u16 addr,
+ u8 *data);
+int intel_scu_ipc_dev_iowrite8(struct intel_scu_ipc_dev *scu, u16 addr,
+ u8 data);
+int intel_scu_ipc_dev_readv(struct intel_scu_ipc_dev *scu, u16 *addr,
+ u8 *data, size_t len);
+int intel_scu_ipc_dev_writev(struct intel_scu_ipc_dev *scu, u16 *addr,
+ u8 *data, size_t len);
-/* Update single register based on the mask */
-int intel_scu_ipc_update_register(u16 addr, u8 data, u8 mask);
+int intel_scu_ipc_dev_update(struct intel_scu_ipc_dev *scu, u16 addr,
+ u8 data, u8 mask);
-/* Issue commands to the SCU with or without data */
-int intel_scu_ipc_simple_command(int cmd, int sub);
-int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
- u32 *out, int outlen);
-/* I2C control api */
-int intel_scu_ipc_i2c_cntrl(u32 addr, u32 *data);
+int intel_scu_ipc_dev_simple_command(struct intel_scu_ipc_dev *scu, int cmd,
+ int sub);
+int intel_scu_ipc_dev_command_with_size(struct intel_scu_ipc_dev *scu, int cmd,
+ int sub, const void *in, size_t inlen,
+ size_t size, void *out, size_t outlen);
-/* Update FW version */
-int intel_scu_ipc_fw_update(u8 *buffer, u32 length);
+static inline int intel_scu_ipc_dev_command(struct intel_scu_ipc_dev *scu, int cmd,
+ int sub, const void *in, size_t inlen,
+ void *out, size_t outlen)
+{
+ return intel_scu_ipc_dev_command_with_size(scu, cmd, sub, in, inlen,
+ inlen, out, outlen);
+}
#endif
diff --git a/arch/x86/include/asm/intel_telemetry.h b/arch/x86/include/asm/intel_telemetry.h
new file mode 100644
index 000000000000..8046e70dfd7c
--- /dev/null
+++ b/arch/x86/include/asm/intel_telemetry.h
@@ -0,0 +1,139 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel SOC Telemetry Driver Header File
+ * Copyright (C) 2015, Intel Corporation.
+ * All Rights Reserved.
+ */
+#ifndef INTEL_TELEMETRY_H
+#define INTEL_TELEMETRY_H
+
+#define TELEM_MAX_EVENTS_SRAM 28
+#define TELEM_MAX_OS_ALLOCATED_EVENTS 20
+
+#include <asm/intel_scu_ipc.h>
+
+enum telemetry_unit {
+ TELEM_PSS = 0,
+ TELEM_IOSS,
+ TELEM_UNIT_NONE
+};
+
+struct telemetry_evtlog {
+ u32 telem_evtid;
+ u64 telem_evtlog;
+};
+
+struct telemetry_evtconfig {
+ /* Array of Event-IDs to Enable */
+ u32 *evtmap;
+
+ /* Number of Events (<29) in evtmap */
+ u8 num_evts;
+
+ /* Sampling period */
+ u8 period;
+};
+
+struct telemetry_evtmap {
+ const char *name;
+ u32 evt_id;
+};
+
+struct telemetry_unit_config {
+ struct telemetry_evtmap *telem_evts;
+ void __iomem *regmap;
+ u8 ssram_evts_used;
+ u8 curr_period;
+ u8 max_period;
+ u8 min_period;
+};
+
+struct telemetry_plt_config {
+ struct telemetry_unit_config pss_config;
+ struct telemetry_unit_config ioss_config;
+ struct mutex telem_trace_lock;
+ struct mutex telem_lock;
+ struct intel_pmc_dev *pmc;
+ struct intel_scu_ipc_dev *scu;
+ bool telem_in_use;
+};
+
+struct telemetry_core_ops {
+ int (*get_sampling_period)(u8 *pss_min_period, u8 *pss_max_period,
+ u8 *ioss_min_period, u8 *ioss_max_period);
+
+ int (*get_eventconfig)(struct telemetry_evtconfig *pss_evtconfig,
+ struct telemetry_evtconfig *ioss_evtconfig,
+ int pss_len, int ioss_len);
+
+ int (*update_events)(struct telemetry_evtconfig pss_evtconfig,
+ struct telemetry_evtconfig ioss_evtconfig);
+
+ int (*set_sampling_period)(u8 pss_period, u8 ioss_period);
+
+ int (*get_trace_verbosity)(enum telemetry_unit telem_unit,
+ u32 *verbosity);
+
+ int (*set_trace_verbosity)(enum telemetry_unit telem_unit,
+ u32 verbosity);
+
+ int (*raw_read_eventlog)(enum telemetry_unit telem_unit,
+ struct telemetry_evtlog *evtlog,
+ int len, int log_all_evts);
+
+ int (*read_eventlog)(enum telemetry_unit telem_unit,
+ struct telemetry_evtlog *evtlog,
+ int len, int log_all_evts);
+
+ int (*add_events)(u8 num_pss_evts, u8 num_ioss_evts,
+ u32 *pss_evtmap, u32 *ioss_evtmap);
+
+ int (*reset_events)(void);
+};
+
+int telemetry_set_pltdata(const struct telemetry_core_ops *ops,
+ struct telemetry_plt_config *pltconfig);
+
+int telemetry_clear_pltdata(void);
+
+struct telemetry_plt_config *telemetry_get_pltdata(void);
+
+int telemetry_get_evtname(enum telemetry_unit telem_unit,
+ const char **name, int len);
+
+int telemetry_update_events(struct telemetry_evtconfig pss_evtconfig,
+ struct telemetry_evtconfig ioss_evtconfig);
+
+int telemetry_add_events(u8 num_pss_evts, u8 num_ioss_evts,
+ u32 *pss_evtmap, u32 *ioss_evtmap);
+
+int telemetry_reset_events(void);
+
+int telemetry_get_eventconfig(struct telemetry_evtconfig *pss_config,
+ struct telemetry_evtconfig *ioss_config,
+ int pss_len, int ioss_len);
+
+int telemetry_read_events(enum telemetry_unit telem_unit,
+ struct telemetry_evtlog *evtlog, int len);
+
+int telemetry_raw_read_events(enum telemetry_unit telem_unit,
+ struct telemetry_evtlog *evtlog, int len);
+
+int telemetry_read_eventlog(enum telemetry_unit telem_unit,
+ struct telemetry_evtlog *evtlog, int len);
+
+int telemetry_raw_read_eventlog(enum telemetry_unit telem_unit,
+ struct telemetry_evtlog *evtlog, int len);
+
+int telemetry_get_sampling_period(u8 *pss_min_period, u8 *pss_max_period,
+ u8 *ioss_min_period, u8 *ioss_max_period);
+
+int telemetry_set_sampling_period(u8 pss_period, u8 ioss_period);
+
+int telemetry_set_trace_verbosity(enum telemetry_unit telem_unit,
+ u32 verbosity);
+
+int telemetry_get_trace_verbosity(enum telemetry_unit telem_unit,
+ u32 *verbosity);
+
+#endif /* INTEL_TELEMETRY_H */
diff --git a/arch/x86/include/asm/invpcid.h b/arch/x86/include/asm/invpcid.h
new file mode 100644
index 000000000000..734482afbf81
--- /dev/null
+++ b/arch/x86/include/asm/invpcid.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_INVPCID
+#define _ASM_X86_INVPCID
+
+static inline void __invpcid(unsigned long pcid, unsigned long addr,
+ unsigned long type)
+{
+ struct { u64 d[2]; } desc = { { pcid, addr } };
+
+ /*
+ * The memory clobber is because the whole point is to invalidate
+ * stale TLB entries and, especially if we're flushing global
+ * mappings, we don't want the compiler to reorder any subsequent
+ * memory accesses before the TLB flush.
+ */
+ asm volatile("invpcid %[desc], %[type]"
+ :: [desc] "m" (desc), [type] "r" (type) : "memory");
+}
+
+#define INVPCID_TYPE_INDIV_ADDR 0
+#define INVPCID_TYPE_SINGLE_CTXT 1
+#define INVPCID_TYPE_ALL_INCL_GLOBAL 2
+#define INVPCID_TYPE_ALL_NON_GLOBAL 3
+
+/* Flush all mappings for a given pcid and addr, not including globals. */
+static inline void invpcid_flush_one(unsigned long pcid,
+ unsigned long addr)
+{
+ __invpcid(pcid, addr, INVPCID_TYPE_INDIV_ADDR);
+}
+
+/* Flush all mappings for a given PCID, not including globals. */
+static inline void invpcid_flush_single_context(unsigned long pcid)
+{
+ __invpcid(pcid, 0, INVPCID_TYPE_SINGLE_CTXT);
+}
+
+/* Flush all mappings, including globals, for all PCIDs. */
+static inline void invpcid_flush_all(void)
+{
+ __invpcid(0, 0, INVPCID_TYPE_ALL_INCL_GLOBAL);
+}
+
+/* Flush all mappings for all PCIDs except globals. */
+static inline void invpcid_flush_all_nonglobals(void)
+{
+ __invpcid(0, 0, INVPCID_TYPE_ALL_NON_GLOBAL);
+}
+
+#endif /* _ASM_X86_INVPCID */
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 072273082528..e9025640f634 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_IO_H
#define _ASM_X86_IO_H
@@ -35,13 +36,15 @@
*/
#define ARCH_HAS_IOREMAP_WC
+#define ARCH_HAS_IOREMAP_WT
#include <linux/string.h>
#include <linux/compiler.h>
-#include <asm-generic/int-ll64.h>
+#include <linux/cc_platform.h>
#include <asm/page.h>
-
-#include <xen/xen.h>
+#include <asm/early_ioremap.h>
+#include <asm/pgtable_types.h>
+#include <asm/shared/io.h>
#define build_mmio_read(name, size, type, reg, barrier) \
static inline type name(const volatile void __iomem *addr) \
@@ -69,6 +72,9 @@ build_mmio_write(__writeb, "b", unsigned char, "q", )
build_mmio_write(__writew, "w", unsigned short, "r", )
build_mmio_write(__writel, "l", unsigned int, "r", )
+#define readb readb
+#define readw readw
+#define readl readl
#define readb_relaxed(a) __readb(a)
#define readw_relaxed(a) __readw(a)
#define readl_relaxed(a) __readl(a)
@@ -76,47 +82,39 @@ build_mmio_write(__writel, "l", unsigned int, "r", )
#define __raw_readw __readw
#define __raw_readl __readl
+#define writeb writeb
+#define writew writew
+#define writel writel
+#define writeb_relaxed(v, a) __writeb(v, a)
+#define writew_relaxed(v, a) __writew(v, a)
+#define writel_relaxed(v, a) __writel(v, a)
#define __raw_writeb __writeb
#define __raw_writew __writew
#define __raw_writel __writel
-#define mmiowb() barrier()
-
#ifdef CONFIG_X86_64
-build_mmio_read(readq, "q", unsigned long, "=r", :"memory")
-build_mmio_write(writeq, "q", unsigned long, "r", :"memory")
-
-#else
-
-static inline __u64 readq(const volatile void __iomem *addr)
-{
- const volatile u32 __iomem *p = addr;
- u32 low, high;
-
- low = readl(p);
- high = readl(p + 1);
-
- return low + ((u64)high << 32);
-}
-
-static inline void writeq(__u64 val, volatile void __iomem *addr)
-{
- writel(val, addr);
- writel(val >> 32, addr+4);
-}
+build_mmio_read(readq, "q", u64, "=r", :"memory")
+build_mmio_read(__readq, "q", u64, "=r", )
+build_mmio_write(writeq, "q", u64, "r", :"memory")
+build_mmio_write(__writeq, "q", u64, "r", )
-#endif
+#define readq_relaxed(a) __readq(a)
+#define writeq_relaxed(v, a) __writeq(v, a)
-#define readq_relaxed(a) readq(a)
-
-#define __raw_readq(a) readq(a)
-#define __raw_writeq(val, addr) writeq(val, addr)
+#define __raw_readq __readq
+#define __raw_writeq __writeq
/* Let people know that we have them */
#define readq readq
#define writeq writeq
+#endif
+
+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE
+extern int valid_phys_addr_range(phys_addr_t addr, size_t size);
+extern int valid_mmap_phys_addr_range(unsigned long pfn, size_t size);
+
/**
* virt_to_phys - map virtual addresses to physical
* @address: address to remap
@@ -134,6 +132,7 @@ static inline phys_addr_t virt_to_phys(volatile void *address)
{
return __pa(address);
}
+#define virt_to_phys virt_to_phys
/**
* phys_to_virt - map physical address to virtual
@@ -152,6 +151,7 @@ static inline void *phys_to_virt(phys_addr_t address)
{
return __va(address);
}
+#define phys_to_virt phys_to_virt
/*
* Change "struct page" to physical address.
@@ -161,23 +161,26 @@ static inline void *phys_to_virt(phys_addr_t address)
/*
* ISA I/O bus memory addresses are 1:1 with the physical address.
* However, we truncate the address to unsigned int to avoid undesirable
- * promitions in legacy drivers.
+ * promotions in legacy drivers.
*/
static inline unsigned int isa_virt_to_bus(volatile void *address)
{
return (unsigned int)virt_to_phys(address);
}
-#define isa_page_to_bus(page) ((unsigned int)page_to_phys(page))
#define isa_bus_to_virt phys_to_virt
/*
- * However PCI ones are not necessarily 1:1 and therefore these interfaces
- * are forbidden in portable PCI drivers.
- *
- * Allow them on x86 for legacy drivers, though.
+ * The default ioremap() behavior is non-cached; if you need something
+ * else, you probably want one of the following.
*/
-#define virt_to_bus virt_to_phys
-#define bus_to_virt phys_to_virt
+extern void __iomem *ioremap_uc(resource_size_t offset, unsigned long size);
+#define ioremap_uc ioremap_uc
+extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size);
+#define ioremap_cache ioremap_cache
+extern void __iomem *ioremap_prot(resource_size_t offset, unsigned long size, unsigned long prot_val);
+#define ioremap_prot ioremap_prot
+extern void __iomem *ioremap_encrypted(resource_size_t phys_addr, unsigned long size);
+#define ioremap_encrypted ioremap_encrypted
/**
* ioremap - map bus memory into CPU space
@@ -193,51 +196,23 @@ static inline unsigned int isa_virt_to_bus(volatile void *address)
* If the area you are trying to map is a PCI BAR you should have a
* look at pci_iomap().
*/
-extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size);
-extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size);
-extern void __iomem *ioremap_prot(resource_size_t offset, unsigned long size,
- unsigned long prot_val);
-
-/*
- * The default ioremap() behavior is non-cached:
- */
-static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
-{
- return ioremap_nocache(offset, size);
-}
+void __iomem *ioremap(resource_size_t offset, unsigned long size);
+#define ioremap ioremap
extern void iounmap(volatile void __iomem *addr);
-
-extern void set_iounmap_nonlazy(void);
+#define iounmap iounmap
#ifdef __KERNEL__
-#include <asm-generic/iomap.h>
-
-#include <linux/vmalloc.h>
+void memcpy_fromio(void *, const volatile void __iomem *, size_t);
+void memcpy_toio(volatile void __iomem *, const void *, size_t);
+void memset_io(volatile void __iomem *, int, size_t);
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p) p
+#define memcpy_fromio memcpy_fromio
+#define memcpy_toio memcpy_toio
+#define memset_io memset_io
-static inline void
-memset_io(volatile void __iomem *addr, unsigned char val, size_t count)
-{
- memset((void __force *)addr, val, count);
-}
-
-static inline void
-memcpy_fromio(void *dst, const volatile void __iomem *src, size_t count)
-{
- memcpy(dst, (const void __force *)src, count);
-}
-
-static inline void
-memcpy_toio(volatile void __iomem *dst, const void *src, size_t count)
-{
- memcpy((void __force *)dst, src, count);
-}
+#include <asm-generic/iomap.h>
/*
* ISA space is 'always mapped' on a typical x86 system, no need to
@@ -249,21 +224,6 @@ memcpy_toio(volatile void __iomem *dst, const void *src, size_t count)
*/
#define __ISA_IO_base ((char __iomem *)(PAGE_OFFSET))
-/*
- * Cache management
- *
- * This needed for two cases
- * 1. Out of order aware processors
- * 2. Accidentally out of order processors (PPro errata #51)
- */
-
-static inline void flush_write_buffers(void)
-{
-#if defined(CONFIG_X86_OOSTORE) || defined(CONFIG_X86_PPRO_FENCE)
- asm volatile("lock; addl $0,0(%%esp)": : :"memory");
-#endif
-}
-
#endif /* __KERNEL__ */
extern void native_io_delay(void);
@@ -288,82 +248,145 @@ static inline void slow_down_io(void)
#endif
#define BUILDIO(bwl, bw, type) \
-static inline void out##bwl(unsigned type value, int port) \
-{ \
- asm volatile("out" #bwl " %" #bw "0, %w1" \
- : : "a"(value), "Nd"(port)); \
-} \
- \
-static inline unsigned type in##bwl(int port) \
-{ \
- unsigned type value; \
- asm volatile("in" #bwl " %w1, %" #bw "0" \
- : "=a"(value) : "Nd"(port)); \
- return value; \
-} \
- \
-static inline void out##bwl##_p(unsigned type value, int port) \
+static inline void out##bwl##_p(type value, u16 port) \
{ \
out##bwl(value, port); \
slow_down_io(); \
} \
\
-static inline unsigned type in##bwl##_p(int port) \
+static inline type in##bwl##_p(u16 port) \
{ \
- unsigned type value = in##bwl(port); \
+ type value = in##bwl(port); \
slow_down_io(); \
return value; \
} \
\
-static inline void outs##bwl(int port, const void *addr, unsigned long count) \
+static inline void outs##bwl(u16 port, const void *addr, unsigned long count) \
{ \
- asm volatile("rep; outs" #bwl \
- : "+S"(addr), "+c"(count) : "d"(port)); \
+ if (cc_platform_has(CC_ATTR_GUEST_UNROLL_STRING_IO)) { \
+ type *value = (type *)addr; \
+ while (count) { \
+ out##bwl(*value, port); \
+ value++; \
+ count--; \
+ } \
+ } else { \
+ asm volatile("rep; outs" #bwl \
+ : "+S"(addr), "+c"(count) \
+ : "d"(port) : "memory"); \
+ } \
} \
\
-static inline void ins##bwl(int port, void *addr, unsigned long count) \
+static inline void ins##bwl(u16 port, void *addr, unsigned long count) \
{ \
- asm volatile("rep; ins" #bwl \
- : "+D"(addr), "+c"(count) : "d"(port)); \
+ if (cc_platform_has(CC_ATTR_GUEST_UNROLL_STRING_IO)) { \
+ type *value = (type *)addr; \
+ while (count) { \
+ *value = in##bwl(port); \
+ value++; \
+ count--; \
+ } \
+ } else { \
+ asm volatile("rep; ins" #bwl \
+ : "+D"(addr), "+c"(count) \
+ : "d"(port) : "memory"); \
+ } \
}
-BUILDIO(b, b, char)
-BUILDIO(w, w, short)
-BUILDIO(l, , int)
+BUILDIO(b, b, u8)
+BUILDIO(w, w, u16)
+BUILDIO(l, , u32)
+#undef BUILDIO
-extern void *xlate_dev_mem_ptr(unsigned long phys);
-extern void unxlate_dev_mem_ptr(unsigned long phys, void *addr);
+#define inb_p inb_p
+#define inw_p inw_p
+#define inl_p inl_p
+#define insb insb
+#define insw insw
+#define insl insl
+
+#define outb_p outb_p
+#define outw_p outw_p
+#define outl_p outl_p
+#define outsb outsb
+#define outsw outsw
+#define outsl outsl
+
+extern void *xlate_dev_mem_ptr(phys_addr_t phys);
+extern void unxlate_dev_mem_ptr(phys_addr_t phys, void *addr);
+
+#define xlate_dev_mem_ptr xlate_dev_mem_ptr
+#define unxlate_dev_mem_ptr unxlate_dev_mem_ptr
extern int ioremap_change_attr(unsigned long vaddr, unsigned long size,
- unsigned long prot_val);
+ enum page_cache_mode pcm);
extern void __iomem *ioremap_wc(resource_size_t offset, unsigned long size);
+#define ioremap_wc ioremap_wc
+extern void __iomem *ioremap_wt(resource_size_t offset, unsigned long size);
+#define ioremap_wt ioremap_wt
-/*
- * early_ioremap() and early_iounmap() are for temporary early boot-time
- * mappings, before the real ioremap() is functional.
- * A boot-time mapping is currently limited to at most 16 pages.
- */
-extern void early_ioremap_init(void);
-extern void early_ioremap_reset(void);
-extern void __iomem *early_ioremap(resource_size_t phys_addr,
- unsigned long size);
-extern void __iomem *early_memremap(resource_size_t phys_addr,
- unsigned long size);
-extern void early_iounmap(void __iomem *addr, unsigned long size);
-extern void fixup_early_ioremap(void);
extern bool is_early_ioremap_ptep(pte_t *ptep);
-#ifdef CONFIG_XEN
-struct bio_vec;
+#define IO_SPACE_LIMIT 0xffff
-extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
- const struct bio_vec *vec2);
+#include <asm-generic/io.h>
+#undef PCI_IOBASE
-#define BIOVEC_PHYS_MERGEABLE(vec1, vec2) \
- (__BIOVEC_PHYS_MERGEABLE(vec1, vec2) && \
- (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2)))
-#endif /* CONFIG_XEN */
+#ifdef CONFIG_MTRR
+extern int __must_check arch_phys_wc_index(int handle);
+#define arch_phys_wc_index arch_phys_wc_index
-#define IO_SPACE_LIMIT 0xffff
+extern int __must_check arch_phys_wc_add(unsigned long base,
+ unsigned long size);
+extern void arch_phys_wc_del(int handle);
+#define arch_phys_wc_add arch_phys_wc_add
+#endif
+
+#ifdef CONFIG_X86_PAT
+extern int arch_io_reserve_memtype_wc(resource_size_t start, resource_size_t size);
+extern void arch_io_free_memtype_wc(resource_size_t start, resource_size_t size);
+#define arch_io_reserve_memtype_wc arch_io_reserve_memtype_wc
+#endif
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+extern bool arch_memremap_can_ram_remap(resource_size_t offset,
+ unsigned long size,
+ unsigned long flags);
+#define arch_memremap_can_ram_remap arch_memremap_can_ram_remap
+
+extern bool phys_mem_access_encrypted(unsigned long phys_addr,
+ unsigned long size);
+#else
+static inline bool phys_mem_access_encrypted(unsigned long phys_addr,
+ unsigned long size)
+{
+ return true;
+}
+#endif
+
+/**
+ * iosubmit_cmds512 - copy data to single MMIO location, in 512-bit units
+ * @dst: destination, in MMIO space (must be 512-bit aligned)
+ * @src: source
+ * @count: number of 512 bits quantities to submit
+ *
+ * Submit data from kernel space to MMIO space, in units of 512 bits at a
+ * time. Order of access is not guaranteed, nor is a memory barrier
+ * performed afterwards.
+ *
+ * Warning: Do not use this helper unless your driver has checked that the CPU
+ * instruction is supported on the platform.
+ */
+static inline void iosubmit_cmds512(void __iomem *dst, const void *src,
+ size_t count)
+{
+ const u8 *from = src;
+ const u8 *end = from + count * 64;
+
+ while (from < end) {
+ movdir64b(dst, from);
+ from += 64;
+ }
+}
#endif /* _ASM_X86_IO_H */
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index c4bd267dfc50..437aa8d00e53 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_IO_APIC_H
#define _ASM_X86_IO_APIC_H
@@ -5,22 +6,13 @@
#include <asm/mpspec.h>
#include <asm/apicdef.h>
#include <asm/irq_vectors.h>
-
+#include <asm/x86_init.h>
/*
* Intel IO-APIC support for SMP and UP systems.
*
* Copyright (C) 1997, 1998, 1999, 2000 Ingo Molnar
*/
-/* I/O Unit Redirection Table */
-#define IO_APIC_REDIR_VECTOR_MASK 0x000FF
-#define IO_APIC_REDIR_DEST_LOGICAL 0x00800
-#define IO_APIC_REDIR_DEST_PHYSICAL 0x00000
-#define IO_APIC_REDIR_SEND_PENDING (1 << 12)
-#define IO_APIC_REDIR_REMOTE_IRR (1 << 14)
-#define IO_APIC_REDIR_LEVEL_TRIGGER (1 << 15)
-#define IO_APIC_REDIR_MASKED (1 << 16)
-
/*
* The structure of the IO-APIC:
*/
@@ -64,40 +56,42 @@ union IO_APIC_reg_03 {
};
struct IO_APIC_route_entry {
- __u32 vector : 8,
- delivery_mode : 3, /* 000: FIXED
- * 001: lowest prio
- * 111: ExtINT
- */
- dest_mode : 1, /* 0: physical, 1: logical */
- delivery_status : 1,
- polarity : 1,
- irr : 1,
- trigger : 1, /* 0: edge, 1: level */
- mask : 1, /* 0: enabled, 1: disabled */
- __reserved_2 : 15;
-
- __u32 __reserved_3 : 24,
- dest : 8;
+ union {
+ struct {
+ u64 vector : 8,
+ delivery_mode : 3,
+ dest_mode_logical : 1,
+ delivery_status : 1,
+ active_low : 1,
+ irr : 1,
+ is_level : 1,
+ masked : 1,
+ reserved_0 : 15,
+ reserved_1 : 17,
+ virt_destid_8_14 : 7,
+ destid_0_7 : 8;
+ };
+ struct {
+ u64 ir_shared_0 : 8,
+ ir_zero : 3,
+ ir_index_15 : 1,
+ ir_shared_1 : 5,
+ ir_reserved_0 : 31,
+ ir_format : 1,
+ ir_index_0_14 : 15;
+ };
+ struct {
+ u64 w1 : 32,
+ w2 : 32;
+ };
+ };
} __attribute__ ((packed));
-struct IR_IO_APIC_route_entry {
- __u64 vector : 8,
- zero : 3,
- index2 : 1,
- delivery_status : 1,
- polarity : 1,
- irr : 1,
- trigger : 1,
- mask : 1,
- reserved : 31,
- format : 1,
- index : 15;
-} __attribute__ ((packed));
+struct irq_alloc_info;
+struct ioapic_domain_cfg;
-#define IOAPIC_AUTO -1
-#define IOAPIC_EDGE 0
-#define IOAPIC_LEVEL 1
+#define IOAPIC_MAP_ALLOC 0x1
+#define IOAPIC_MAP_CHECK 0x2
#ifdef CONFIG_X86_IO_APIC
@@ -105,12 +99,9 @@ struct IR_IO_APIC_route_entry {
* # of IO-APICs and # of IRQ routing registers
*/
extern int nr_ioapics;
-extern int nr_ioapic_registers[MAX_IO_APICS];
-#define MP_MAX_IOAPIC_PIN 127
-
-/* I/O APIC entries */
-extern struct mpc_ioapic mp_ioapics[MAX_IO_APICS];
+extern int mpc_ioapic_id(int ioapic);
+extern unsigned int mpc_ioapic_addr(int ioapic);
/* # of MP IRQ source entries */
extern int mp_irq_entries;
@@ -118,12 +109,6 @@ extern int mp_irq_entries;
/* MP IRQ source entries */
extern struct mpc_intsrc mp_irqs[MAX_IRQ_SOURCES];
-/* non-0 if default (table-less) MP configuration */
-extern int mpc_default_type;
-
-/* Older SiS APIC requires we rewrite the index register */
-extern int sis_apic_bug;
-
/* 1 if "noapic" boot option passed */
extern int skip_ioapic_setup;
@@ -133,8 +118,11 @@ extern int noioapicquirk;
/* -1 if "noapic" boot option passed */
extern int noioapicreroute;
-/* 1 if the timer IRQ uses the '8259A Virtual Wire' mode */
-extern int timer_through_8259;
+extern u32 gsi_top;
+
+extern unsigned long io_apic_irqs;
+
+#define IO_APIC_IRQ(x) (((x) >= NR_IRQS_LEGACY) || ((1 << (x)) & io_apic_irqs))
/*
* If we use the IO-APIC for IRQ routing, disable automatic
@@ -143,74 +131,88 @@ extern int timer_through_8259;
#define io_apic_assign_pci_irqs \
(mp_irq_entries && !skip_ioapic_setup && io_apic_irqs)
-struct io_apic_irq_attr;
-extern int io_apic_set_pci_routing(struct device *dev, int irq,
- struct io_apic_irq_attr *irq_attr);
-void setup_IO_APIC_irq_extra(u32 gsi);
-extern void ioapic_and_gsi_init(void);
+struct irq_cfg;
extern void ioapic_insert_resources(void);
+extern int arch_early_ioapic_init(void);
-int io_apic_setup_irq_pin(unsigned int irq, int node, struct io_apic_irq_attr *attr);
-
-extern struct IO_APIC_route_entry **alloc_ioapic_entries(void);
-extern void free_ioapic_entries(struct IO_APIC_route_entry **ioapic_entries);
-extern int save_IO_APIC_setup(struct IO_APIC_route_entry **ioapic_entries);
-extern void mask_IO_APIC_setup(struct IO_APIC_route_entry **ioapic_entries);
-extern int restore_IO_APIC_setup(struct IO_APIC_route_entry **ioapic_entries);
-
-extern int get_nr_irqs_gsi(void);
+extern int save_ioapic_entries(void);
+extern void mask_ioapic_entries(void);
+extern int restore_ioapic_entries(void);
extern void setup_ioapic_ids_from_mpc(void);
extern void setup_ioapic_ids_from_mpc_nocheck(void);
-struct mp_ioapic_gsi{
- u32 gsi_base;
- u32 gsi_end;
-};
-extern struct mp_ioapic_gsi mp_gsi_routing[];
-extern u32 gsi_top;
-int mp_find_ioapic(u32 gsi);
-int mp_find_ioapic_pin(int ioapic, u32 gsi);
-void __init mp_register_ioapic(int id, u32 address, u32 gsi_base);
-extern void __init pre_init_apic_IRQ0(void);
+extern int mp_find_ioapic(u32 gsi);
+extern int mp_find_ioapic_pin(int ioapic, u32 gsi);
+extern int mp_map_gsi_to_irq(u32 gsi, unsigned int flags,
+ struct irq_alloc_info *info);
+extern void mp_unmap_irq(int irq);
+extern int mp_register_ioapic(int id, u32 address, u32 gsi_base,
+ struct ioapic_domain_cfg *cfg);
+extern int mp_unregister_ioapic(u32 gsi_base);
+extern int mp_ioapic_registered(u32 gsi_base);
+
+extern void ioapic_set_alloc_attr(struct irq_alloc_info *info,
+ int node, int trigger, int polarity);
extern void mp_save_irq(struct mpc_intsrc *m);
extern void disable_ioapic_support(void);
+extern void __init io_apic_init_mappings(void);
+extern unsigned int native_io_apic_read(unsigned int apic, unsigned int reg);
+extern void native_restore_boot_irq_mode(void);
+
+static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
+{
+ return x86_apic_ops.io_apic_read(apic, reg);
+}
+
+extern void setup_IO_APIC(void);
+extern void enable_IO_APIC(void);
+extern void clear_IO_APIC(void);
+extern void restore_boot_irq_mode(void);
+extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin);
+extern void print_IO_APICs(void);
#else /* !CONFIG_X86_IO_APIC */
+#define IO_APIC_IRQ(x) 0
#define io_apic_assign_pci_irqs 0
#define setup_ioapic_ids_from_mpc x86_init_noop
-static const int timer_through_8259 = 0;
-static inline void ioapic_and_gsi_init(void) { }
static inline void ioapic_insert_resources(void) { }
+static inline int arch_early_ioapic_init(void) { return 0; }
+static inline void print_IO_APICs(void) {}
#define gsi_top (NR_IRQS_LEGACY)
static inline int mp_find_ioapic(u32 gsi) { return 0; }
-
-struct io_apic_irq_attr;
-static inline int io_apic_set_pci_routing(struct device *dev, int irq,
- struct io_apic_irq_attr *irq_attr) { return 0; }
-
-static inline struct IO_APIC_route_entry **alloc_ioapic_entries(void)
+static inline int mp_map_gsi_to_irq(u32 gsi, unsigned int flags,
+ struct irq_alloc_info *info)
{
- return NULL;
+ return gsi;
}
-static inline void free_ioapic_entries(struct IO_APIC_route_entry **ent) { }
-static inline int save_IO_APIC_setup(struct IO_APIC_route_entry **ent)
+static inline void mp_unmap_irq(int irq) { }
+
+static inline int save_ioapic_entries(void)
{
return -ENOMEM;
}
-static inline void mask_IO_APIC_setup(struct IO_APIC_route_entry **ent) { }
-static inline int restore_IO_APIC_setup(struct IO_APIC_route_entry **ent)
+static inline void mask_ioapic_entries(void) { }
+static inline int restore_ioapic_entries(void)
{
return -ENOMEM;
}
-static inline void mp_save_irq(struct mpc_intsrc *m) { };
+static inline void mp_save_irq(struct mpc_intsrc *m) { }
static inline void disable_ioapic_support(void) { }
+static inline void io_apic_init_mappings(void) { }
+#define native_io_apic_read NULL
+#define native_restore_boot_irq_mode NULL
+
+static inline void setup_IO_APIC(void) { }
+static inline void enable_IO_APIC(void) { }
+static inline void restore_boot_irq_mode(void) { }
+
#endif
#endif /* _ASM_X86_IO_APIC_H */
diff --git a/arch/x86/include/asm/io_bitmap.h b/arch/x86/include/asm/io_bitmap.h
new file mode 100644
index 000000000000..7f080f5c7def
--- /dev/null
+++ b/arch/x86/include/asm/io_bitmap.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_IOBITMAP_H
+#define _ASM_X86_IOBITMAP_H
+
+#include <linux/refcount.h>
+#include <asm/processor.h>
+
+struct io_bitmap {
+ u64 sequence;
+ refcount_t refcnt;
+ /* The maximum number of bytes to copy so all zero bits are covered */
+ unsigned int max;
+ unsigned long bitmap[IO_BITMAP_LONGS];
+};
+
+struct task_struct;
+
+#ifdef CONFIG_X86_IOPL_IOPERM
+void io_bitmap_share(struct task_struct *tsk);
+void io_bitmap_exit(struct task_struct *tsk);
+
+static inline void native_tss_invalidate_io_bitmap(void)
+{
+ /*
+ * Invalidate the I/O bitmap by moving io_bitmap_base outside the
+ * TSS limit so any subsequent I/O access from user space will
+ * trigger a #GP.
+ *
+ * This is correct even when VMEXIT rewrites the TSS limit
+ * to 0x67 as the only requirement is that the base points
+ * outside the limit.
+ */
+ this_cpu_write(cpu_tss_rw.x86_tss.io_bitmap_base,
+ IO_BITMAP_OFFSET_INVALID);
+}
+
+void native_tss_update_io_bitmap(void);
+
+#ifdef CONFIG_PARAVIRT_XXL
+#include <asm/paravirt.h>
+#else
+#define tss_update_io_bitmap native_tss_update_io_bitmap
+#define tss_invalidate_io_bitmap native_tss_invalidate_io_bitmap
+#endif
+
+#else
+static inline void io_bitmap_share(struct task_struct *tsk) { }
+static inline void io_bitmap_exit(struct task_struct *tsk) { }
+static inline void tss_update_io_bitmap(void) { }
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/ioctl.h b/arch/x86/include/asm/ioctl.h
deleted file mode 100644
index b279fe06dfe5..000000000000
--- a/arch/x86/include/asm/ioctl.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/ioctl.h>
diff --git a/arch/x86/include/asm/ioctls.h b/arch/x86/include/asm/ioctls.h
deleted file mode 100644
index ec34c760665e..000000000000
--- a/arch/x86/include/asm/ioctls.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/ioctls.h>
diff --git a/arch/x86/include/asm/iomap.h b/arch/x86/include/asm/iomap.h
index 363e33eb6ec1..e2de092fc38c 100644
--- a/arch/x86/include/asm/iomap.h
+++ b/arch/x86/include/asm/iomap.h
@@ -1,41 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_X86_IOMAP_H
#define _ASM_X86_IOMAP_H
/*
* Copyright Ā© 2008 Ingo Molnar
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <linux/fs.h>
#include <linux/mm.h>
#include <linux/uaccess.h>
+#include <linux/highmem.h>
#include <asm/cacheflush.h>
-#include <asm/pgtable.h>
#include <asm/tlbflush.h>
-void __iomem *
-iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
+void __iomem *__iomap_local_pfn_prot(unsigned long pfn, pgprot_t prot);
-void
-iounmap_atomic(void __iomem *kvaddr);
+int iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot);
-int
-iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot);
-
-void
-iomap_free(resource_size_t base, unsigned long size);
+void iomap_free(resource_size_t base, unsigned long size);
#endif /* _ASM_X86_IOMAP_H */
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index 345c99cef152..2fd52b65deac 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -1,12 +1,39 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_IOMMU_H
#define _ASM_X86_IOMMU_H
-extern struct dma_map_ops nommu_dma_ops;
+#include <linux/acpi.h>
+
+#include <asm/e820/api.h>
+
extern int force_iommu, no_iommu;
extern int iommu_detected;
-extern int iommu_pass_through;
+extern int iommu_merge;
+extern int panic_on_overflow;
+
+#ifdef CONFIG_SWIOTLB
+extern bool x86_swiotlb_enable;
+#else
+#define x86_swiotlb_enable false
+#endif
/* 10 seconds */
#define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
+static inline int __init
+arch_rmrr_sanity_check(struct acpi_dmar_reserved_memory *rmrr)
+{
+ u64 start = rmrr->base_address;
+ u64 end = rmrr->end_address + 1;
+ int entry_type;
+
+ entry_type = e820__get_entry_type(start, end);
+ if (entry_type == E820_TYPE_RESERVED || entry_type == E820_TYPE_NVS)
+ return 0;
+
+ pr_err(FW_BUG "No firmware reserved region can cover this RMRR [%#018Lx-%#018Lx], contact BIOS vendor for fixes\n",
+ start, end - 1);
+ return -EINVAL;
+}
+
#endif /* _ASM_X86_IOMMU_H */
diff --git a/arch/x86/include/asm/iommu_table.h b/arch/x86/include/asm/iommu_table.h
deleted file mode 100644
index f229b13a5f30..000000000000
--- a/arch/x86/include/asm/iommu_table.h
+++ /dev/null
@@ -1,100 +0,0 @@
-#ifndef _ASM_X86_IOMMU_TABLE_H
-#define _ASM_X86_IOMMU_TABLE_H
-
-#include <asm/swiotlb.h>
-
-/*
- * History lesson:
- * The execution chain of IOMMUs in 2.6.36 looks as so:
- *
- * [xen-swiotlb]
- * |
- * +----[swiotlb *]--+
- * / | \
- * / | \
- * [GART] [Calgary] [Intel VT-d]
- * /
- * /
- * [AMD-Vi]
- *
- * *: if SWIOTLB detected 'iommu=soft'/'swiotlb=force' it would skip
- * over the rest of IOMMUs and unconditionally initialize the SWIOTLB.
- * Also it would surreptitiously initialize set the swiotlb=1 if there were
- * more than 4GB and if the user did not pass in 'iommu=off'. The swiotlb
- * flag would be turned off by all IOMMUs except the Calgary one.
- *
- * The IOMMU_INIT* macros allow a similar tree (or more complex if desired)
- * to be built by defining who we depend on.
- *
- * And all that needs to be done is to use one of the macros in the IOMMU
- * and the pci-dma.c will take care of the rest.
- */
-
-struct iommu_table_entry {
- initcall_t detect;
- initcall_t depend;
- void (*early_init)(void); /* No memory allocate available. */
- void (*late_init)(void); /* Yes, can allocate memory. */
-#define IOMMU_FINISH_IF_DETECTED (1<<0)
-#define IOMMU_DETECTED (1<<1)
- int flags;
-};
-/*
- * Macro fills out an entry in the .iommu_table that is equivalent
- * to the fields that 'struct iommu_table_entry' has. The entries
- * that are put in the .iommu_table section are not put in any order
- * hence during boot-time we will have to resort them based on
- * dependency. */
-
-
-#define __IOMMU_INIT(_detect, _depend, _early_init, _late_init, _finish)\
- static const struct iommu_table_entry const \
- __iommu_entry_##_detect __used \
- __attribute__ ((unused, __section__(".iommu_table"), \
- aligned((sizeof(void *))))) \
- = {_detect, _depend, _early_init, _late_init, \
- _finish ? IOMMU_FINISH_IF_DETECTED : 0}
-/*
- * The simplest IOMMU definition. Provide the detection routine
- * and it will be run after the SWIOTLB and the other IOMMUs
- * that utilize this macro. If the IOMMU is detected (ie, the
- * detect routine returns a positive value), the other IOMMUs
- * are also checked. You can use IOMMU_INIT_POST_FINISH if you prefer
- * to stop detecting the other IOMMUs after yours has been detected.
- */
-#define IOMMU_INIT_POST(_detect) \
- __IOMMU_INIT(_detect, pci_swiotlb_detect_4gb, 0, 0, 0)
-
-#define IOMMU_INIT_POST_FINISH(detect) \
- __IOMMU_INIT(_detect, pci_swiotlb_detect_4gb, 0, 0, 1)
-
-/*
- * A more sophisticated version of IOMMU_INIT. This variant requires:
- * a). A detection routine function.
- * b). The name of the detection routine we depend on to get called
- * before us.
- * c). The init routine which gets called if the detection routine
- * returns a positive value from the pci_iommu_alloc. This means
- * no presence of a memory allocator.
- * d). Similar to the 'init', except that this gets called from pci_iommu_init
- * where we do have a memory allocator.
- *
- * The standard vs the _FINISH differs in that the _FINISH variant will
- * continue detecting other IOMMUs in the call list after the
- * the detection routine returns a positive number. The _FINISH will
- * stop the execution chain. Both will still call the 'init' and
- * 'late_init' functions if they are set.
- */
-#define IOMMU_INIT_FINISH(_detect, _depend, _init, _late_init) \
- __IOMMU_INIT(_detect, _depend, _init, _late_init, 1)
-
-#define IOMMU_INIT(_detect, _depend, _init, _late_init) \
- __IOMMU_INIT(_detect, _depend, _init, _late_init, 0)
-
-void sort_iommu_table(struct iommu_table_entry *start,
- struct iommu_table_entry *finish);
-
-void check_iommu_entries(struct iommu_table_entry *start,
- struct iommu_table_entry *finish);
-
-#endif /* _ASM_X86_IOMMU_TABLE_H */
diff --git a/arch/x86/include/asm/iosf_mbi.h b/arch/x86/include/asm/iosf_mbi.h
new file mode 100644
index 000000000000..a1911fea8739
--- /dev/null
+++ b/arch/x86/include/asm/iosf_mbi.h
@@ -0,0 +1,253 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Intel OnChip System Fabric MailBox access support
+ */
+
+#ifndef IOSF_MBI_SYMS_H
+#define IOSF_MBI_SYMS_H
+
+#include <linux/notifier.h>
+
+#define MBI_MCR_OFFSET 0xD0
+#define MBI_MDR_OFFSET 0xD4
+#define MBI_MCRX_OFFSET 0xD8
+
+#define MBI_RD_MASK 0xFEFFFFFF
+#define MBI_WR_MASK 0X01000000
+
+#define MBI_MASK_HI 0xFFFFFF00
+#define MBI_MASK_LO 0x000000FF
+#define MBI_ENABLE 0xF0
+
+/* IOSF SB read/write opcodes */
+#define MBI_MMIO_READ 0x00
+#define MBI_MMIO_WRITE 0x01
+#define MBI_CFG_READ 0x04
+#define MBI_CFG_WRITE 0x05
+#define MBI_CR_READ 0x06
+#define MBI_CR_WRITE 0x07
+#define MBI_REG_READ 0x10
+#define MBI_REG_WRITE 0x11
+#define MBI_ESRAM_READ 0x12
+#define MBI_ESRAM_WRITE 0x13
+
+/* Baytrail available units */
+#define BT_MBI_UNIT_AUNIT 0x00
+#define BT_MBI_UNIT_SMC 0x01
+#define BT_MBI_UNIT_CPU 0x02
+#define BT_MBI_UNIT_BUNIT 0x03
+#define BT_MBI_UNIT_PMC 0x04
+#define BT_MBI_UNIT_GFX 0x06
+#define BT_MBI_UNIT_SMI 0x0C
+#define BT_MBI_UNIT_CCK 0x14
+#define BT_MBI_UNIT_USB 0x43
+#define BT_MBI_UNIT_SATA 0xA3
+#define BT_MBI_UNIT_PCIE 0xA6
+
+/* Quark available units */
+#define QRK_MBI_UNIT_HBA 0x00
+#define QRK_MBI_UNIT_HB 0x03
+#define QRK_MBI_UNIT_RMU 0x04
+#define QRK_MBI_UNIT_MM 0x05
+#define QRK_MBI_UNIT_SOC 0x31
+
+/* Action values for the pmic_bus_access_notifier functions */
+#define MBI_PMIC_BUS_ACCESS_BEGIN 1
+#define MBI_PMIC_BUS_ACCESS_END 2
+
+#if IS_ENABLED(CONFIG_IOSF_MBI)
+
+bool iosf_mbi_available(void);
+
+/**
+ * iosf_mbi_read() - MailBox Interface read command
+ * @port: port indicating subunit being accessed
+ * @opcode: port specific read or write opcode
+ * @offset: register address offset
+ * @mdr: register data to be read
+ *
+ * Locking is handled by spinlock - cannot sleep.
+ * Return: Nonzero on error
+ */
+int iosf_mbi_read(u8 port, u8 opcode, u32 offset, u32 *mdr);
+
+/**
+ * iosf_mbi_write() - MailBox unmasked write command
+ * @port: port indicating subunit being accessed
+ * @opcode: port specific read or write opcode
+ * @offset: register address offset
+ * @mdr: register data to be written
+ *
+ * Locking is handled by spinlock - cannot sleep.
+ * Return: Nonzero on error
+ */
+int iosf_mbi_write(u8 port, u8 opcode, u32 offset, u32 mdr);
+
+/**
+ * iosf_mbi_modify() - MailBox masked write command
+ * @port: port indicating subunit being accessed
+ * @opcode: port specific read or write opcode
+ * @offset: register address offset
+ * @mdr: register data being modified
+ * @mask: mask indicating bits in mdr to be modified
+ *
+ * Locking is handled by spinlock - cannot sleep.
+ * Return: Nonzero on error
+ */
+int iosf_mbi_modify(u8 port, u8 opcode, u32 offset, u32 mdr, u32 mask);
+
+/**
+ * iosf_mbi_punit_acquire() - Acquire access to the P-Unit
+ *
+ * One some systems the P-Unit accesses the PMIC to change various voltages
+ * through the same bus as other kernel drivers use for e.g. battery monitoring.
+ *
+ * If a driver sends requests to the P-Unit which require the P-Unit to access
+ * the PMIC bus while another driver is also accessing the PMIC bus various bad
+ * things happen.
+ *
+ * Call this function before sending requests to the P-Unit which may make it
+ * access the PMIC, be it through iosf_mbi* functions or through other means.
+ * This function will block all kernel access to the PMIC I2C bus, so that the
+ * P-Unit can safely access the PMIC over the shared I2C bus.
+ *
+ * Note on these systems the i2c-bus driver will request a sempahore from the
+ * P-Unit for exclusive access to the PMIC bus when i2c drivers are accessing
+ * it, but this does not appear to be sufficient, we still need to avoid making
+ * certain P-Unit requests during the access window to avoid problems.
+ *
+ * This function locks a mutex, as such it may sleep.
+ */
+void iosf_mbi_punit_acquire(void);
+
+/**
+ * iosf_mbi_punit_release() - Release access to the P-Unit
+ */
+void iosf_mbi_punit_release(void);
+
+/**
+ * iosf_mbi_block_punit_i2c_access() - Block P-Unit accesses to the PMIC bus
+ *
+ * Call this function to block P-Unit access to the PMIC I2C bus, so that the
+ * kernel can safely access the PMIC over the shared I2C bus.
+ *
+ * This function acquires the P-Unit bus semaphore and notifies
+ * pmic_bus_access_notifier listeners that they may no longer access the
+ * P-Unit in a way which may cause it to access the shared I2C bus.
+ *
+ * Note this function may be called multiple times and the bus will not
+ * be released until iosf_mbi_unblock_punit_i2c_access() has been called the
+ * same amount of times.
+ *
+ * Return: Nonzero on error
+ */
+int iosf_mbi_block_punit_i2c_access(void);
+
+/*
+ * iosf_mbi_unblock_punit_i2c_access() - Release PMIC I2C bus block
+ *
+ * Release i2c access block gotten through iosf_mbi_block_punit_i2c_access().
+ */
+void iosf_mbi_unblock_punit_i2c_access(void);
+
+/**
+ * iosf_mbi_register_pmic_bus_access_notifier - Register PMIC bus notifier
+ *
+ * This function can be used by drivers which may need to acquire P-Unit
+ * managed resources from interrupt context, where iosf_mbi_punit_acquire()
+ * can not be used.
+ *
+ * This function allows a driver to register a notifier to get notified (in a
+ * process context) before other drivers start accessing the PMIC bus.
+ *
+ * This allows the driver to acquire any resources, which it may need during
+ * the window the other driver is accessing the PMIC, before hand.
+ *
+ * @nb: notifier_block to register
+ */
+int iosf_mbi_register_pmic_bus_access_notifier(struct notifier_block *nb);
+
+/**
+ * iosf_mbi_register_pmic_bus_access_notifier - Unregister PMIC bus notifier
+ *
+ * @nb: notifier_block to unregister
+ */
+int iosf_mbi_unregister_pmic_bus_access_notifier(struct notifier_block *nb);
+
+/**
+ * iosf_mbi_unregister_pmic_bus_access_notifier_unlocked - Unregister PMIC bus
+ * notifier, unlocked
+ *
+ * Like iosf_mbi_unregister_pmic_bus_access_notifier(), but for use when the
+ * caller has already called iosf_mbi_punit_acquire() itself.
+ *
+ * @nb: notifier_block to unregister
+ */
+int iosf_mbi_unregister_pmic_bus_access_notifier_unlocked(
+ struct notifier_block *nb);
+
+/**
+ * iosf_mbi_assert_punit_acquired - Assert that the P-Unit has been acquired.
+ */
+void iosf_mbi_assert_punit_acquired(void);
+
+#else /* CONFIG_IOSF_MBI is not enabled */
+static inline
+bool iosf_mbi_available(void)
+{
+ return false;
+}
+
+static inline
+int iosf_mbi_read(u8 port, u8 opcode, u32 offset, u32 *mdr)
+{
+ WARN(1, "IOSF_MBI driver not available");
+ return -EPERM;
+}
+
+static inline
+int iosf_mbi_write(u8 port, u8 opcode, u32 offset, u32 mdr)
+{
+ WARN(1, "IOSF_MBI driver not available");
+ return -EPERM;
+}
+
+static inline
+int iosf_mbi_modify(u8 port, u8 opcode, u32 offset, u32 mdr, u32 mask)
+{
+ WARN(1, "IOSF_MBI driver not available");
+ return -EPERM;
+}
+
+static inline void iosf_mbi_punit_acquire(void) {}
+static inline void iosf_mbi_punit_release(void) {}
+
+static inline
+int iosf_mbi_register_pmic_bus_access_notifier(struct notifier_block *nb)
+{
+ return 0;
+}
+
+static inline
+int iosf_mbi_unregister_pmic_bus_access_notifier(struct notifier_block *nb)
+{
+ return 0;
+}
+
+static inline int
+iosf_mbi_unregister_pmic_bus_access_notifier_unlocked(struct notifier_block *nb)
+{
+ return 0;
+}
+
+static inline
+int iosf_mbi_call_pmic_bus_access_notifier_chain(unsigned long val, void *v)
+{
+ return 0;
+}
+
+static inline void iosf_mbi_assert_punit_acquired(void) {}
+
+#endif /* CONFIG_IOSF_MBI */
+
+#endif /* IOSF_MBI_SYMS_H */
diff --git a/arch/x86/include/asm/ipcbuf.h b/arch/x86/include/asm/ipcbuf.h
deleted file mode 100644
index 84c7e51cb6d0..000000000000
--- a/arch/x86/include/asm/ipcbuf.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/ipcbuf.h>
diff --git a/arch/x86/include/asm/ipi.h b/arch/x86/include/asm/ipi.h
deleted file mode 100644
index 615fa9061b57..000000000000
--- a/arch/x86/include/asm/ipi.h
+++ /dev/null
@@ -1,162 +0,0 @@
-#ifndef _ASM_X86_IPI_H
-#define _ASM_X86_IPI_H
-
-#ifdef CONFIG_X86_LOCAL_APIC
-
-/*
- * Copyright 2004 James Cleverdon, IBM.
- * Subject to the GNU Public License, v.2
- *
- * Generic APIC InterProcessor Interrupt code.
- *
- * Moved to include file by James Cleverdon from
- * arch/x86-64/kernel/smp.c
- *
- * Copyrights from kernel/smp.c:
- *
- * (c) 1995 Alan Cox, Building #3 <alan@redhat.com>
- * (c) 1998-99, 2000 Ingo Molnar <mingo@redhat.com>
- * (c) 2002,2003 Andi Kleen, SuSE Labs.
- * Subject to the GNU Public License, v.2
- */
-
-#include <asm/hw_irq.h>
-#include <asm/apic.h>
-#include <asm/smp.h>
-
-/*
- * the following functions deal with sending IPIs between CPUs.
- *
- * We use 'broadcast', CPU->CPU IPIs and self-IPIs too.
- */
-
-static inline unsigned int __prepare_ICR(unsigned int shortcut, int vector,
- unsigned int dest)
-{
- unsigned int icr = shortcut | dest;
-
- switch (vector) {
- default:
- icr |= APIC_DM_FIXED | vector;
- break;
- case NMI_VECTOR:
- icr |= APIC_DM_NMI;
- break;
- }
- return icr;
-}
-
-static inline int __prepare_ICR2(unsigned int mask)
-{
- return SET_APIC_DEST_FIELD(mask);
-}
-
-static inline void __xapic_wait_icr_idle(void)
-{
- while (native_apic_mem_read(APIC_ICR) & APIC_ICR_BUSY)
- cpu_relax();
-}
-
-static inline void
-__default_send_IPI_shortcut(unsigned int shortcut, int vector, unsigned int dest)
-{
- /*
- * Subtle. In the case of the 'never do double writes' workaround
- * we have to lock out interrupts to be safe. As we don't care
- * of the value read we use an atomic rmw access to avoid costly
- * cli/sti. Otherwise we use an even cheaper single atomic write
- * to the APIC.
- */
- unsigned int cfg;
-
- /*
- * Wait for idle.
- */
- __xapic_wait_icr_idle();
-
- /*
- * No need to touch the target chip field
- */
- cfg = __prepare_ICR(shortcut, vector, dest);
-
- /*
- * Send the IPI. The write to APIC_ICR fires this off.
- */
- native_apic_mem_write(APIC_ICR, cfg);
-}
-
-/*
- * This is used to send an IPI with no shorthand notation (the destination is
- * specified in bits 56 to 63 of the ICR).
- */
-static inline void
- __default_send_IPI_dest_field(unsigned int mask, int vector, unsigned int dest)
-{
- unsigned long cfg;
-
- /*
- * Wait for idle.
- */
- if (unlikely(vector == NMI_VECTOR))
- safe_apic_wait_icr_idle();
- else
- __xapic_wait_icr_idle();
-
- /*
- * prepare target chip field
- */
- cfg = __prepare_ICR2(mask);
- native_apic_mem_write(APIC_ICR2, cfg);
-
- /*
- * program the ICR
- */
- cfg = __prepare_ICR(0, vector, dest);
-
- /*
- * Send the IPI. The write to APIC_ICR fires this off.
- */
- native_apic_mem_write(APIC_ICR, cfg);
-}
-
-extern void default_send_IPI_mask_sequence_phys(const struct cpumask *mask,
- int vector);
-extern void default_send_IPI_mask_allbutself_phys(const struct cpumask *mask,
- int vector);
-
-/* Avoid include hell */
-#define NMI_VECTOR 0x02
-
-extern int no_broadcast;
-
-static inline void __default_local_send_IPI_allbutself(int vector)
-{
- if (no_broadcast || vector == NMI_VECTOR)
- apic->send_IPI_mask_allbutself(cpu_online_mask, vector);
- else
- __default_send_IPI_shortcut(APIC_DEST_ALLBUT, vector, apic->dest_logical);
-}
-
-static inline void __default_local_send_IPI_all(int vector)
-{
- if (no_broadcast || vector == NMI_VECTOR)
- apic->send_IPI_mask(cpu_online_mask, vector);
- else
- __default_send_IPI_shortcut(APIC_DEST_ALLINC, vector, apic->dest_logical);
-}
-
-#ifdef CONFIG_X86_32
-extern void default_send_IPI_mask_sequence_logical(const struct cpumask *mask,
- int vector);
-extern void default_send_IPI_mask_allbutself_logical(const struct cpumask *mask,
- int vector);
-extern void default_send_IPI_mask_logical(const struct cpumask *mask,
- int vector);
-extern void default_send_IPI_allbutself(int vector);
-extern void default_send_IPI_all(int vector);
-extern void default_send_IPI_self(int vector);
-#endif
-
-#endif
-
-#endif /* _ASM_X86_IPI_H */
diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h
index ba870bb6dd8e..768aa234cbb4 100644
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_IRQ_H
#define _ASM_X86_IRQ_H
/*
@@ -10,35 +11,42 @@
#include <asm/apicdef.h>
#include <asm/irq_vectors.h>
+/*
+ * The irq entry code is in the noinstr section and the start/end of
+ * __irqentry_text is emitted via labels. Make the build fail if
+ * something moves a C function into the __irq_entry section.
+ */
+#define __irq_entry __invalid_section
+
static inline int irq_canonicalize(int irq)
{
return ((irq == 2) ? 9 : irq);
}
-#ifdef CONFIG_X86_32
-extern void irq_ctx_init(int cpu);
-#else
-# define irq_ctx_init(cpu) do { } while (0)
-#endif
+extern int irq_init_percpu_irqstack(unsigned int cpu);
-#define __ARCH_HAS_DO_SOFTIRQ
+struct irq_desc;
-#ifdef CONFIG_HOTPLUG_CPU
-#include <linux/cpumask.h>
extern void fixup_irqs(void);
-extern void irq_force_complete_move(int);
+
+#ifdef CONFIG_HAVE_KVM
+extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
#endif
extern void (*x86_platform_ipi_callback)(void);
extern void native_init_IRQ(void);
-extern bool handle_irq(unsigned irq, struct pt_regs *regs);
-extern unsigned int do_IRQ(struct pt_regs *regs);
-
-/* Interrupt vector management */
-extern DECLARE_BITMAP(used_vectors, NR_VECTORS);
-extern int vector_used_by_percpu_irq(unsigned int vector);
+extern void __handle_irq(struct irq_desc *desc, struct pt_regs *regs);
extern void init_ISA_irqs(void);
+extern void __init init_IRQ(void);
+
+#ifdef CONFIG_X86_LOCAL_APIC
+void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
+ bool exclude_self);
+
+#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
+#endif
+
#endif /* _ASM_X86_IRQ_H */
diff --git a/arch/x86/include/asm/irq_controller.h b/arch/x86/include/asm/irq_controller.h
deleted file mode 100644
index 423bbbddf36d..000000000000
--- a/arch/x86/include/asm/irq_controller.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef __IRQ_CONTROLLER__
-#define __IRQ_CONTROLLER__
-
-struct irq_domain {
- int (*xlate)(struct irq_domain *h, const u32 *intspec, u32 intsize,
- u32 *out_hwirq, u32 *out_type);
- void *priv;
- struct device_node *controller;
- struct list_head l;
-};
-
-#endif
diff --git a/arch/x86/include/asm/irq_regs.h b/arch/x86/include/asm/irq_regs.h
deleted file mode 100644
index 77843225b7ea..000000000000
--- a/arch/x86/include/asm/irq_regs.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Per-cpu current frame pointer - the location of the last exception frame on
- * the stack, stored in the per-cpu area.
- *
- * Jeremy Fitzhardinge <jeremy@goop.org>
- */
-#ifndef _ASM_X86_IRQ_REGS_H
-#define _ASM_X86_IRQ_REGS_H
-
-#include <asm/percpu.h>
-
-#define ARCH_HAS_OWN_IRQ_REGS
-
-DECLARE_PER_CPU(struct pt_regs *, irq_regs);
-
-static inline struct pt_regs *get_irq_regs(void)
-{
- return percpu_read(irq_regs);
-}
-
-static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs)
-{
- struct pt_regs *old_regs;
-
- old_regs = get_irq_regs();
- percpu_write(irq_regs, new_regs);
-
- return old_regs;
-}
-
-#endif /* _ASM_X86_IRQ_REGS_32_H */
diff --git a/arch/x86/include/asm/irq_remapping.h b/arch/x86/include/asm/irq_remapping.h
index 1c23360fb2d8..7a2ed154a5e1 100644
--- a/arch/x86/include/asm/irq_remapping.h
+++ b/arch/x86/include/asm/irq_remapping.h
@@ -1,41 +1,68 @@
-#ifndef _ASM_X86_IRQ_REMAPPING_H
-#define _ASM_X86_IRQ_REMAPPING_H
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2012 Advanced Micro Devices, Inc.
+ * Author: Joerg Roedel <joerg.roedel@amd.com>
+ *
+ * This header file contains the interface of the interrupt remapping code to
+ * the x86 interrupt management code.
+ */
-#define IRTE_DEST(dest) ((x2apic_mode) ? dest : dest << 8)
+#ifndef __X86_IRQ_REMAPPING_H
+#define __X86_IRQ_REMAPPING_H
-#ifdef CONFIG_INTR_REMAP
-static inline void prepare_irte(struct irte *irte, int vector,
- unsigned int dest)
-{
- memset(irte, 0, sizeof(*irte));
-
- irte->present = 1;
- irte->dst_mode = apic->irq_dest_mode;
- /*
- * Trigger mode in the IRTE will always be edge, and for IO-APIC, the
- * actual level or edge trigger will be setup in the IO-APIC
- * RTE. This will help simplify level triggered irq migration.
- * For more details, see the comments (in io_apic.c) explainig IO-APIC
- * irq migration in the presence of interrupt-remapping.
- */
- irte->trigger_mode = 0;
- irte->dlvry_mode = apic->irq_delivery_mode;
- irte->vector = vector;
- irte->dest_id = IRTE_DEST(dest);
- irte->redir_hint = 1;
-}
-static inline bool irq_remapped(struct irq_cfg *cfg)
-{
- return cfg->irq_2_iommu.iommu != NULL;
-}
-#else
-static void prepare_irte(struct irte *irte, int vector, unsigned int dest)
+#include <asm/irqdomain.h>
+#include <asm/hw_irq.h>
+#include <asm/io_apic.h>
+
+struct msi_msg;
+struct irq_alloc_info;
+
+enum irq_remap_cap {
+ IRQ_POSTING_CAP = 0,
+};
+
+enum {
+ IRQ_REMAP_XAPIC_MODE,
+ IRQ_REMAP_X2APIC_MODE,
+};
+
+struct vcpu_data {
+ u64 pi_desc_addr; /* Physical address of PI Descriptor */
+ u32 vector; /* Guest vector of the interrupt */
+};
+
+#ifdef CONFIG_IRQ_REMAP
+
+extern raw_spinlock_t irq_2_ir_lock;
+
+extern bool irq_remapping_cap(enum irq_remap_cap cap);
+extern void set_irq_remapping_broken(void);
+extern int irq_remapping_prepare(void);
+extern int irq_remapping_enable(void);
+extern void irq_remapping_disable(void);
+extern int irq_remapping_reenable(int);
+extern int irq_remap_enable_fault_handling(void);
+extern void panic_if_irq_remap(const char *msg);
+
+/* Get parent irqdomain for interrupt remapping irqdomain */
+static inline struct irq_domain *arch_get_ir_parent_domain(void)
{
+ return x86_vector_domain;
}
-static inline bool irq_remapped(struct irq_cfg *cfg)
+
+#else /* CONFIG_IRQ_REMAP */
+
+static inline bool irq_remapping_cap(enum irq_remap_cap cap) { return 0; }
+static inline void set_irq_remapping_broken(void) { }
+static inline int irq_remapping_prepare(void) { return -ENODEV; }
+static inline int irq_remapping_enable(void) { return -ENODEV; }
+static inline void irq_remapping_disable(void) { }
+static inline int irq_remapping_reenable(int eim) { return -ENODEV; }
+static inline int irq_remap_enable_fault_handling(void) { return -ENODEV; }
+
+static inline void panic_if_irq_remap(const char *msg)
{
- return false;
}
-#endif
-#endif /* _ASM_X86_IRQ_REMAPPING_H */
+#endif /* CONFIG_IRQ_REMAP */
+#endif /* __X86_IRQ_REMAPPING_H */
diff --git a/arch/x86/include/asm/irq_stack.h b/arch/x86/include/asm/irq_stack.h
new file mode 100644
index 000000000000..798183867d78
--- /dev/null
+++ b/arch/x86/include/asm/irq_stack.h
@@ -0,0 +1,241 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_IRQ_STACK_H
+#define _ASM_X86_IRQ_STACK_H
+
+#include <linux/ptrace.h>
+#include <linux/objtool.h>
+
+#include <asm/processor.h>
+
+#ifdef CONFIG_X86_64
+
+/*
+ * Macro to inline switching to an interrupt stack and invoking function
+ * calls from there. The following rules apply:
+ *
+ * - Ordering:
+ *
+ * 1. Write the stack pointer into the top most place of the irq
+ * stack. This ensures that the various unwinders can link back to the
+ * original stack.
+ *
+ * 2. Switch the stack pointer to the top of the irq stack.
+ *
+ * 3. Invoke whatever needs to be done (@asm_call argument)
+ *
+ * 4. Pop the original stack pointer from the top of the irq stack
+ * which brings it back to the original stack where it left off.
+ *
+ * - Function invocation:
+ *
+ * To allow flexible usage of the macro, the actual function code including
+ * the store of the arguments in the call ABI registers is handed in via
+ * the @asm_call argument.
+ *
+ * - Local variables:
+ *
+ * @tos:
+ * The @tos variable holds a pointer to the top of the irq stack and
+ * _must_ be allocated in a non-callee saved register as this is a
+ * restriction coming from objtool.
+ *
+ * Note, that (tos) is both in input and output constraints to ensure
+ * that the compiler does not assume that R11 is left untouched in
+ * case this macro is used in some place where the per cpu interrupt
+ * stack pointer is used again afterwards
+ *
+ * - Function arguments:
+ * The function argument(s), if any, have to be defined in register
+ * variables at the place where this is invoked. Storing the
+ * argument(s) in the proper register(s) is part of the @asm_call
+ *
+ * - Constraints:
+ *
+ * The constraints have to be done very carefully because the compiler
+ * does not know about the assembly call.
+ *
+ * output:
+ * As documented already above the @tos variable is required to be in
+ * the output constraints to make the compiler aware that R11 cannot be
+ * reused after the asm() statement.
+ *
+ * For builds with CONFIG_UNWINDER_FRAME_POINTER, ASM_CALL_CONSTRAINT is
+ * required as well as this prevents certain creative GCC variants from
+ * misplacing the ASM code.
+ *
+ * input:
+ * - func:
+ * Immediate, which tells the compiler that the function is referenced.
+ *
+ * - tos:
+ * Register. The actual register is defined by the variable declaration.
+ *
+ * - function arguments:
+ * The constraints are handed in via the 'argconstr' argument list. They
+ * describe the register arguments which are used in @asm_call.
+ *
+ * clobbers:
+ * Function calls can clobber anything except the callee-saved
+ * registers. Tell the compiler.
+ */
+#define call_on_stack(stack, func, asm_call, argconstr...) \
+{ \
+ register void *tos asm("r11"); \
+ \
+ tos = ((void *)(stack)); \
+ \
+ asm_inline volatile( \
+ "movq %%rsp, (%[tos]) \n" \
+ "movq %[tos], %%rsp \n" \
+ \
+ asm_call \
+ \
+ "popq %%rsp \n" \
+ \
+ : "+r" (tos), ASM_CALL_CONSTRAINT \
+ : [__func] "i" (func), [tos] "r" (tos) argconstr \
+ : "cc", "rax", "rcx", "rdx", "rsi", "rdi", "r8", "r9", "r10", \
+ "memory" \
+ ); \
+}
+
+#define ASM_CALL_ARG0 \
+ "call %P[__func] \n" \
+ ASM_REACHABLE
+
+#define ASM_CALL_ARG1 \
+ "movq %[arg1], %%rdi \n" \
+ ASM_CALL_ARG0
+
+#define ASM_CALL_ARG2 \
+ "movq %[arg2], %%rsi \n" \
+ ASM_CALL_ARG1
+
+#define ASM_CALL_ARG3 \
+ "movq %[arg3], %%rdx \n" \
+ ASM_CALL_ARG2
+
+#define call_on_irqstack(func, asm_call, argconstr...) \
+ call_on_stack(__this_cpu_read(pcpu_hot.hardirq_stack_ptr), \
+ func, asm_call, argconstr)
+
+/* Macros to assert type correctness for run_*_on_irqstack macros */
+#define assert_function_type(func, proto) \
+ static_assert(__builtin_types_compatible_p(typeof(&func), proto))
+
+#define assert_arg_type(arg, proto) \
+ static_assert(__builtin_types_compatible_p(typeof(arg), proto))
+
+/*
+ * Macro to invoke system vector and device interrupt C handlers.
+ */
+#define call_on_irqstack_cond(func, regs, asm_call, constr, c_args...) \
+{ \
+ /* \
+ * User mode entry and interrupt on the irq stack do not \
+ * switch stacks. If from user mode the task stack is empty. \
+ */ \
+ if (user_mode(regs) || __this_cpu_read(pcpu_hot.hardirq_stack_inuse)) { \
+ irq_enter_rcu(); \
+ func(c_args); \
+ irq_exit_rcu(); \
+ } else { \
+ /* \
+ * Mark the irq stack inuse _before_ and unmark _after_ \
+ * switching stacks. Interrupts are disabled in both \
+ * places. Invoke the stack switch macro with the call \
+ * sequence which matches the above direct invocation. \
+ */ \
+ __this_cpu_write(pcpu_hot.hardirq_stack_inuse, true); \
+ call_on_irqstack(func, asm_call, constr); \
+ __this_cpu_write(pcpu_hot.hardirq_stack_inuse, false); \
+ } \
+}
+
+/*
+ * Function call sequence for __call_on_irqstack() for system vectors.
+ *
+ * Note that irq_enter_rcu() and irq_exit_rcu() do not use the input
+ * mechanism because these functions are global and cannot be optimized out
+ * when compiling a particular source file which uses one of these macros.
+ *
+ * The argument (regs) does not need to be pushed or stashed in a callee
+ * saved register to be safe vs. the irq_enter_rcu() call because the
+ * clobbers already prevent the compiler from storing it in a callee
+ * clobbered register. As the compiler has to preserve @regs for the final
+ * call to idtentry_exit() anyway, it's likely that it does not cause extra
+ * effort for this asm magic.
+ */
+#define ASM_CALL_SYSVEC \
+ "call irq_enter_rcu \n" \
+ ASM_CALL_ARG1 \
+ "call irq_exit_rcu \n"
+
+#define SYSVEC_CONSTRAINTS , [arg1] "r" (regs)
+
+#define run_sysvec_on_irqstack_cond(func, regs) \
+{ \
+ assert_function_type(func, void (*)(struct pt_regs *)); \
+ assert_arg_type(regs, struct pt_regs *); \
+ \
+ call_on_irqstack_cond(func, regs, ASM_CALL_SYSVEC, \
+ SYSVEC_CONSTRAINTS, regs); \
+}
+
+/*
+ * As in ASM_CALL_SYSVEC above the clobbers force the compiler to store
+ * @regs and @vector in callee saved registers.
+ */
+#define ASM_CALL_IRQ \
+ "call irq_enter_rcu \n" \
+ ASM_CALL_ARG2 \
+ "call irq_exit_rcu \n"
+
+#define IRQ_CONSTRAINTS , [arg1] "r" (regs), [arg2] "r" ((unsigned long)vector)
+
+#define run_irq_on_irqstack_cond(func, regs, vector) \
+{ \
+ assert_function_type(func, void (*)(struct pt_regs *, u32)); \
+ assert_arg_type(regs, struct pt_regs *); \
+ assert_arg_type(vector, u32); \
+ \
+ call_on_irqstack_cond(func, regs, ASM_CALL_IRQ, \
+ IRQ_CONSTRAINTS, regs, vector); \
+}
+
+#ifdef CONFIG_SOFTIRQ_ON_OWN_STACK
+/*
+ * Macro to invoke __do_softirq on the irq stack. This is only called from
+ * task context when bottom halves are about to be reenabled and soft
+ * interrupts are pending to be processed. The interrupt stack cannot be in
+ * use here.
+ */
+#define do_softirq_own_stack() \
+{ \
+ __this_cpu_write(pcpu_hot.hardirq_stack_inuse, true); \
+ call_on_irqstack(__do_softirq, ASM_CALL_ARG0); \
+ __this_cpu_write(pcpu_hot.hardirq_stack_inuse, false); \
+}
+
+#endif
+
+#else /* CONFIG_X86_64 */
+/* System vector handlers always run on the stack they interrupted. */
+#define run_sysvec_on_irqstack_cond(func, regs) \
+{ \
+ irq_enter_rcu(); \
+ func(regs); \
+ irq_exit_rcu(); \
+}
+
+/* Switches to the irq stack within func() */
+#define run_irq_on_irqstack_cond(func, regs, vector) \
+{ \
+ irq_enter_rcu(); \
+ func(regs, vector); \
+ irq_exit_rcu(); \
+}
+
+#endif /* !CONFIG_X86_64 */
+
+#endif
diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h
index 6e976ee3b3ef..43dcb9284208 100644
--- a/arch/x86/include/asm/irq_vectors.h
+++ b/arch/x86/include/asm/irq_vectors.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_IRQ_VECTORS_H
#define _ASM_X86_IRQ_VECTORS_H
@@ -17,27 +18,22 @@
* Vectors 0 ... 31 : system traps and exceptions - hardcoded events
* Vectors 32 ... 127 : device interrupts
* Vector 128 : legacy int80 syscall interface
- * Vectors 129 ... INVALIDATE_TLB_VECTOR_START-1 : device interrupts
- * Vectors INVALIDATE_TLB_VECTOR_START ... 255 : special interrupts
+ * Vectors 129 ... LOCAL_TIMER_VECTOR-1
+ * Vectors LOCAL_TIMER_VECTOR ... 255 : special interrupts
*
* 64-bit x86 has per CPU IDT tables, 32-bit has one shared IDT table.
*
* This file enumerates the exact layout of them:
*/
+/* This is used as an interrupt vector when programming the APIC. */
#define NMI_VECTOR 0x02
-#define MCE_VECTOR 0x12
/*
* IDT vectors usable for external interrupt sources start at 0x20.
* (0x80 is the syscall vector, 0x30-0x3f are for ISA)
*/
#define FIRST_EXTERNAL_VECTOR 0x20
-/*
- * We start allocating at 0x21 to spread out vectors evenly between
- * priority levels. (0x80 is the syscall vector)
- */
-#define VECTOR_OFFSET_START 1
/*
* Reserve the lowest usable vector (and hence lowest priority) 0x20 for
@@ -47,31 +43,12 @@
#define IRQ_MOVE_CLEANUP_VECTOR FIRST_EXTERNAL_VECTOR
#define IA32_SYSCALL_VECTOR 0x80
-#ifdef CONFIG_X86_32
-# define SYSCALL_VECTOR 0x80
-#endif
/*
* Vectors 0x30-0x3f are used for ISA interrupts.
* round up to the next 16-vector boundary
*/
-#define IRQ0_VECTOR ((FIRST_EXTERNAL_VECTOR + 16) & ~15)
-
-#define IRQ1_VECTOR (IRQ0_VECTOR + 1)
-#define IRQ2_VECTOR (IRQ0_VECTOR + 2)
-#define IRQ3_VECTOR (IRQ0_VECTOR + 3)
-#define IRQ4_VECTOR (IRQ0_VECTOR + 4)
-#define IRQ5_VECTOR (IRQ0_VECTOR + 5)
-#define IRQ6_VECTOR (IRQ0_VECTOR + 6)
-#define IRQ7_VECTOR (IRQ0_VECTOR + 7)
-#define IRQ8_VECTOR (IRQ0_VECTOR + 8)
-#define IRQ9_VECTOR (IRQ0_VECTOR + 9)
-#define IRQ10_VECTOR (IRQ0_VECTOR + 10)
-#define IRQ11_VECTOR (IRQ0_VECTOR + 11)
-#define IRQ12_VECTOR (IRQ0_VECTOR + 12)
-#define IRQ13_VECTOR (IRQ0_VECTOR + 13)
-#define IRQ14_VECTOR (IRQ0_VECTOR + 14)
-#define IRQ15_VECTOR (IRQ0_VECTOR + 15)
+#define ISA_IRQ_VECTOR(irq) (((FIRST_EXTERNAL_VECTOR + 16) & ~15) + irq)
/*
* Special IRQ vectors used by the SMP architecture, 0xf0-0xff
@@ -107,48 +84,39 @@
*/
#define IRQ_WORK_VECTOR 0xf6
-#define UV_BAU_MESSAGE 0xf5
+/* 0xf5 - unused, was UV_BAU_MESSAGE */
+#define DEFERRED_ERROR_VECTOR 0xf4
-/*
- * Self IPI vector for machine checks
- */
-#define MCE_SELF_VECTOR 0xf4
+/* Vector on which hypervisor callbacks will be delivered */
+#define HYPERVISOR_CALLBACK_VECTOR 0xf3
-/* Xen vector callback to receive events in a HVM domain */
-#define XEN_HVM_EVTCHN_CALLBACK 0xf3
+/* Vector for KVM to deliver posted interrupt IPI */
+#ifdef CONFIG_HAVE_KVM
+#define POSTED_INTR_VECTOR 0xf2
+#define POSTED_INTR_WAKEUP_VECTOR 0xf1
+#define POSTED_INTR_NESTED_VECTOR 0xf0
+#endif
-/*
- * Local APIC timer IRQ vector is on a different priority level,
- * to work around the 'lost local interrupt if more than 2 IRQ
- * sources per level' errata.
- */
-#define LOCAL_TIMER_VECTOR 0xef
+#define MANAGED_IRQ_SHUTDOWN_VECTOR 0xef
-/* up to 32 vectors used for spreading out TLB flushes: */
-#if NR_CPUS <= 32
-# define NUM_INVALIDATE_TLB_VECTORS (NR_CPUS)
-#else
-# define NUM_INVALIDATE_TLB_VECTORS (32)
+#if IS_ENABLED(CONFIG_HYPERV)
+#define HYPERV_REENLIGHTENMENT_VECTOR 0xee
+#define HYPERV_STIMER0_VECTOR 0xed
#endif
-#define INVALIDATE_TLB_VECTOR_END (0xee)
-#define INVALIDATE_TLB_VECTOR_START \
- (INVALIDATE_TLB_VECTOR_END-NUM_INVALIDATE_TLB_VECTORS+1)
+#define LOCAL_TIMER_VECTOR 0xec
#define NR_VECTORS 256
-#define FPU_IRQ 13
-
-#define FIRST_VM86_IRQ 3
-#define LAST_VM86_IRQ 15
-
-#ifndef __ASSEMBLY__
-static inline int invalid_vm86_irq(int irq)
-{
- return irq < FIRST_VM86_IRQ || irq > LAST_VM86_IRQ;
-}
+#ifdef CONFIG_X86_LOCAL_APIC
+#define FIRST_SYSTEM_VECTOR LOCAL_TIMER_VECTOR
+#else
+#define FIRST_SYSTEM_VECTOR NR_VECTORS
#endif
+#define NR_EXTERNAL_VECTORS (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR)
+#define NR_SYSTEM_VECTORS (NR_VECTORS - FIRST_SYSTEM_VECTOR)
+
/*
* Size the maximum number of interrupts.
*
@@ -160,26 +128,22 @@ static inline int invalid_vm86_irq(int irq)
* static arrays.
*/
-#define NR_IRQS_LEGACY 16
+#define NR_IRQS_LEGACY 16
-#define IO_APIC_VECTOR_LIMIT ( 32 * MAX_IO_APICS )
+#define CPU_VECTOR_LIMIT (64 * NR_CPUS)
+#define IO_APIC_VECTOR_LIMIT (32 * MAX_IO_APICS)
-#ifdef CONFIG_X86_IO_APIC
-# ifdef CONFIG_SPARSE_IRQ
-# define CPU_VECTOR_LIMIT (64 * NR_CPUS)
-# define NR_IRQS \
+#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_PCI_MSI)
+#define NR_IRQS \
(CPU_VECTOR_LIMIT > IO_APIC_VECTOR_LIMIT ? \
(NR_VECTORS + CPU_VECTOR_LIMIT) : \
(NR_VECTORS + IO_APIC_VECTOR_LIMIT))
-# else
-# define CPU_VECTOR_LIMIT (32 * NR_CPUS)
-# define NR_IRQS \
- (CPU_VECTOR_LIMIT < IO_APIC_VECTOR_LIMIT ? \
- (NR_VECTORS + CPU_VECTOR_LIMIT) : \
- (NR_VECTORS + IO_APIC_VECTOR_LIMIT))
-# endif
-#else /* !CONFIG_X86_IO_APIC: */
-# define NR_IRQS NR_IRQS_LEGACY
+#elif defined(CONFIG_X86_IO_APIC)
+#define NR_IRQS (NR_VECTORS + IO_APIC_VECTOR_LIMIT)
+#elif defined(CONFIG_PCI_MSI)
+#define NR_IRQS (NR_VECTORS + CPU_VECTOR_LIMIT)
+#else
+#define NR_IRQS NR_IRQS_LEGACY
#endif
#endif /* _ASM_X86_IRQ_VECTORS_H */
diff --git a/arch/x86/include/asm/irq_work.h b/arch/x86/include/asm/irq_work.h
new file mode 100644
index 000000000000..800ffce0db29
--- /dev/null
+++ b/arch/x86/include/asm/irq_work.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_IRQ_WORK_H
+#define _ASM_IRQ_WORK_H
+
+#include <asm/cpufeature.h>
+
+#ifdef CONFIG_X86_LOCAL_APIC
+static inline bool arch_irq_work_has_interrupt(void)
+{
+ return boot_cpu_has(X86_FEATURE_APIC);
+}
+extern void arch_irq_work_raise(void);
+#else
+static inline bool arch_irq_work_has_interrupt(void)
+{
+ return false;
+}
+#endif
+
+#endif /* _ASM_IRQ_WORK_H */
diff --git a/arch/x86/include/asm/irqdomain.h b/arch/x86/include/asm/irqdomain.h
new file mode 100644
index 000000000000..30c325c235c0
--- /dev/null
+++ b/arch/x86/include/asm/irqdomain.h
@@ -0,0 +1,64 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_IRQDOMAIN_H
+#define _ASM_IRQDOMAIN_H
+
+#include <linux/irqdomain.h>
+#include <asm/hw_irq.h>
+
+#ifdef CONFIG_X86_LOCAL_APIC
+enum {
+ X86_IRQ_ALLOC_LEGACY = 0x1,
+};
+
+extern int x86_fwspec_is_ioapic(struct irq_fwspec *fwspec);
+extern int x86_fwspec_is_hpet(struct irq_fwspec *fwspec);
+
+extern struct irq_domain *x86_vector_domain;
+
+extern void init_irq_alloc_info(struct irq_alloc_info *info,
+ const struct cpumask *mask);
+extern void copy_irq_alloc_info(struct irq_alloc_info *dst,
+ struct irq_alloc_info *src);
+#endif /* CONFIG_X86_LOCAL_APIC */
+
+#ifdef CONFIG_X86_IO_APIC
+struct device_node;
+struct irq_data;
+
+enum ioapic_domain_type {
+ IOAPIC_DOMAIN_INVALID,
+ IOAPIC_DOMAIN_LEGACY,
+ IOAPIC_DOMAIN_STRICT,
+ IOAPIC_DOMAIN_DYNAMIC,
+};
+
+struct ioapic_domain_cfg {
+ enum ioapic_domain_type type;
+ const struct irq_domain_ops *ops;
+ struct device_node *dev;
+};
+
+extern const struct irq_domain_ops mp_ioapic_irqdomain_ops;
+
+extern int mp_irqdomain_alloc(struct irq_domain *domain, unsigned int virq,
+ unsigned int nr_irqs, void *arg);
+extern void mp_irqdomain_free(struct irq_domain *domain, unsigned int virq,
+ unsigned int nr_irqs);
+extern int mp_irqdomain_activate(struct irq_domain *domain,
+ struct irq_data *irq_data, bool reserve);
+extern void mp_irqdomain_deactivate(struct irq_domain *domain,
+ struct irq_data *irq_data);
+extern int mp_irqdomain_ioapic_idx(struct irq_domain *domain);
+#endif /* CONFIG_X86_IO_APIC */
+
+#ifdef CONFIG_PCI_MSI
+void x86_create_pci_msi_domain(void);
+struct irq_domain *native_create_pci_msi_domain(void);
+extern struct irq_domain *x86_pci_msi_default_domain;
+#else
+static inline void x86_create_pci_msi_domain(void) { }
+#define native_create_pci_msi_domain NULL
+#define x86_pci_msi_default_domain NULL
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/irqflags.h b/arch/x86/include/asm/irqflags.h
index 5745ce8bf108..8c5ae649d2df 100644
--- a/arch/x86/include/asm/irqflags.h
+++ b/arch/x86/include/asm/irqflags.h
@@ -1,14 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _X86_IRQFLAGS_H_
#define _X86_IRQFLAGS_H_
#include <asm/processor-flags.h>
#ifndef __ASSEMBLY__
+
+#include <asm/nospec-branch.h>
+
/*
* Interrupt control:
*/
-static inline unsigned long native_save_fl(void)
+/* Declaration required for gcc < 4.9 to prevent -Werror=missing-prototypes */
+extern inline unsigned long native_save_fl(void);
+extern __always_inline unsigned long native_save_fl(void)
{
unsigned long flags;
@@ -26,57 +32,47 @@ static inline unsigned long native_save_fl(void)
return flags;
}
-static inline void native_restore_fl(unsigned long flags)
-{
- asm volatile("push %0 ; popf"
- : /* no output */
- :"g" (flags)
- :"memory", "cc");
-}
-
-static inline void native_irq_disable(void)
+static __always_inline void native_irq_disable(void)
{
asm volatile("cli": : :"memory");
}
-static inline void native_irq_enable(void)
+static __always_inline void native_irq_enable(void)
{
asm volatile("sti": : :"memory");
}
-static inline void native_safe_halt(void)
+static __always_inline void native_safe_halt(void)
{
+ mds_idle_clear_cpu_buffers();
asm volatile("sti; hlt": : :"memory");
}
-static inline void native_halt(void)
+static __always_inline void native_halt(void)
{
+ mds_idle_clear_cpu_buffers();
asm volatile("hlt": : :"memory");
}
#endif
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_XXL
#include <asm/paravirt.h>
#else
#ifndef __ASSEMBLY__
+#include <linux/types.h>
-static inline unsigned long arch_local_save_flags(void)
+static __always_inline unsigned long arch_local_save_flags(void)
{
return native_save_fl();
}
-static inline void arch_local_irq_restore(unsigned long flags)
-{
- native_restore_fl(flags);
-}
-
-static inline void arch_local_irq_disable(void)
+static __always_inline void arch_local_irq_disable(void)
{
native_irq_disable();
}
-static inline void arch_local_irq_enable(void)
+static __always_inline void arch_local_irq_enable(void)
{
native_irq_enable();
}
@@ -85,7 +81,7 @@ static inline void arch_local_irq_enable(void)
* Used in the idle loop; sti takes one instruction cycle
* to complete:
*/
-static inline void arch_safe_halt(void)
+static __always_inline void arch_safe_halt(void)
{
native_safe_halt();
}
@@ -94,7 +90,7 @@ static inline void arch_safe_halt(void)
* Used when interrupts are already enabled or to
* shutdown the processor:
*/
-static inline void halt(void)
+static __always_inline void halt(void)
{
native_halt();
}
@@ -102,7 +98,7 @@ static inline void halt(void)
/*
* For spinlocks, etc:
*/
-static inline unsigned long arch_local_irq_save(void)
+static __always_inline unsigned long arch_local_irq_save(void)
{
unsigned long flags = arch_local_save_flags();
arch_local_irq_disable();
@@ -110,99 +106,34 @@ static inline unsigned long arch_local_irq_save(void)
}
#else
-#define ENABLE_INTERRUPTS(x) sti
-#define DISABLE_INTERRUPTS(x) cli
-
#ifdef CONFIG_X86_64
-#define SWAPGS swapgs
-/*
- * Currently paravirt can't handle swapgs nicely when we
- * don't have a stack we can rely on (such as a user space
- * stack). So we either find a way around these or just fault
- * and emulate if a guest tries to call swapgs directly.
- *
- * Either way, this is a good way to document that we don't
- * have a reliable stack. x86_64 only.
- */
-#define SWAPGS_UNSAFE_STACK swapgs
-
-#define PARAVIRT_ADJUST_EXCEPTION_FRAME /* */
-
-#define INTERRUPT_RETURN iretq
-#define USERGS_SYSRET64 \
- swapgs; \
- sysretq;
-#define USERGS_SYSRET32 \
- swapgs; \
- sysretl
-#define ENABLE_INTERRUPTS_SYSEXIT32 \
- swapgs; \
- sti; \
- sysexit
-
-#else
-#define INTERRUPT_RETURN iret
-#define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit
-#define GET_CR0_INTO_EAX movl %cr0, %eax
+#ifdef CONFIG_DEBUG_ENTRY
+#define SAVE_FLAGS pushfq; popq %rax
#endif
+#endif
#endif /* __ASSEMBLY__ */
-#endif /* CONFIG_PARAVIRT */
+#endif /* CONFIG_PARAVIRT_XXL */
#ifndef __ASSEMBLY__
-static inline int arch_irqs_disabled_flags(unsigned long flags)
+static __always_inline int arch_irqs_disabled_flags(unsigned long flags)
{
return !(flags & X86_EFLAGS_IF);
}
-static inline int arch_irqs_disabled(void)
+static __always_inline int arch_irqs_disabled(void)
{
unsigned long flags = arch_local_save_flags();
return arch_irqs_disabled_flags(flags);
}
-#else
-
-#ifdef CONFIG_X86_64
-#define ARCH_LOCKDEP_SYS_EXIT call lockdep_sys_exit_thunk
-#define ARCH_LOCKDEP_SYS_EXIT_IRQ \
- TRACE_IRQS_ON; \
- sti; \
- SAVE_REST; \
- LOCKDEP_SYS_EXIT; \
- RESTORE_REST; \
- cli; \
- TRACE_IRQS_OFF;
-
-#else
-#define ARCH_LOCKDEP_SYS_EXIT \
- pushl %eax; \
- pushl %ecx; \
- pushl %edx; \
- call lockdep_sys_exit; \
- popl %edx; \
- popl %ecx; \
- popl %eax;
-
-#define ARCH_LOCKDEP_SYS_EXIT_IRQ
-#endif
-
-#ifdef CONFIG_TRACE_IRQFLAGS
-# define TRACE_IRQS_ON call trace_hardirqs_on_thunk;
-# define TRACE_IRQS_OFF call trace_hardirqs_off_thunk;
-#else
-# define TRACE_IRQS_ON
-# define TRACE_IRQS_OFF
-#endif
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-# define LOCKDEP_SYS_EXIT ARCH_LOCKDEP_SYS_EXIT
-# define LOCKDEP_SYS_EXIT_IRQ ARCH_LOCKDEP_SYS_EXIT_IRQ
-# else
-# define LOCKDEP_SYS_EXIT
-# define LOCKDEP_SYS_EXIT_IRQ
-# endif
+static __always_inline void arch_local_irq_restore(unsigned long flags)
+{
+ if (!arch_irqs_disabled_flags(flags))
+ arch_local_irq_enable();
+}
+#endif /* !__ASSEMBLY__ */
-#endif /* __ASSEMBLY__ */
#endif
diff --git a/arch/x86/include/asm/ist.h b/arch/x86/include/asm/ist.h
index 7e5dff1de0e9..7ede2731dc92 100644
--- a/arch/x86/include/asm/ist.h
+++ b/arch/x86/include/asm/ist.h
@@ -1,34 +1,14 @@
-#ifndef _ASM_X86_IST_H
-#define _ASM_X86_IST_H
-
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Include file for the interface to IST BIOS
* Copyright 2002 Andy Grover <andrew.grover@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
*/
+#ifndef _ASM_X86_IST_H
+#define _ASM_X86_IST_H
+#include <uapi/asm/ist.h>
-#include <linux/types.h>
-
-struct ist_info {
- __u32 signature;
- __u32 command;
- __u32 event;
- __u32 perf_level;
-};
-
-#ifdef __KERNEL__
extern struct ist_info ist_info;
-#endif /* __KERNEL__ */
#endif /* _ASM_X86_IST_H */
diff --git a/arch/x86/include/asm/jailhouse_para.h b/arch/x86/include/asm/jailhouse_para.h
new file mode 100644
index 000000000000..a34897aef2c2
--- /dev/null
+++ b/arch/x86/include/asm/jailhouse_para.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+/*
+ * Jailhouse paravirt detection
+ *
+ * Copyright (c) Siemens AG, 2015-2017
+ *
+ * Authors:
+ * Jan Kiszka <jan.kiszka@siemens.com>
+ */
+
+#ifndef _ASM_X86_JAILHOUSE_PARA_H
+#define _ASM_X86_JAILHOUSE_PARA_H
+
+#include <linux/types.h>
+
+#ifdef CONFIG_JAILHOUSE_GUEST
+bool jailhouse_paravirt(void);
+#else
+static inline bool jailhouse_paravirt(void)
+{
+ return false;
+}
+#endif
+
+#endif /* _ASM_X86_JAILHOUSE_PARA_H */
diff --git a/arch/x86/include/asm/jump_label.h b/arch/x86/include/asm/jump_label.h
index 574dbc22893a..071572e23d3a 100644
--- a/arch/x86/include/asm/jump_label.h
+++ b/arch/x86/include/asm/jump_label.h
@@ -1,37 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_JUMP_LABEL_H
#define _ASM_X86_JUMP_LABEL_H
-#ifdef __KERNEL__
+#define HAVE_JUMP_LABEL_BATCH
-#include <linux/types.h>
+#include <asm/asm.h>
#include <asm/nops.h>
-#define JUMP_LABEL_NOP_SIZE 5
+#ifndef __ASSEMBLY__
-# define JUMP_LABEL_INITIAL_NOP ".byte 0xe9 \n\t .long 0\n\t"
+#include <linux/stringify.h>
+#include <linux/types.h>
-# define JUMP_LABEL(key, label) \
- do { \
- asm goto("1:" \
- JUMP_LABEL_INITIAL_NOP \
- ".pushsection __jump_table, \"aw\" \n\t"\
- _ASM_PTR "1b, %l[" #label "], %c0 \n\t" \
- ".popsection \n\t" \
- : : "i" (key) : : label); \
- } while (0)
+#define JUMP_TABLE_ENTRY \
+ ".pushsection __jump_table, \"aw\" \n\t" \
+ _ASM_ALIGN "\n\t" \
+ ".long 1b - . \n\t" \
+ ".long %l[l_yes] - . \n\t" \
+ _ASM_PTR "%c0 + %c1 - .\n\t" \
+ ".popsection \n\t"
-#endif /* __KERNEL__ */
+#ifdef CONFIG_HAVE_JUMP_LABEL_HACK
-#ifdef CONFIG_X86_64
-typedef u64 jump_label_t;
-#else
-typedef u32 jump_label_t;
-#endif
+static __always_inline bool arch_static_branch(struct static_key *key, bool branch)
+{
+ asm_volatile_goto("1:"
+ "jmp %l[l_yes] # objtool NOPs this \n\t"
+ JUMP_TABLE_ENTRY
+ : : "i" (key), "i" (2 | branch) : : l_yes);
+
+ return false;
+l_yes:
+ return true;
+}
+
+#else /* !CONFIG_HAVE_JUMP_LABEL_HACK */
+
+static __always_inline bool arch_static_branch(struct static_key * const key, const bool branch)
+{
+ asm_volatile_goto("1:"
+ ".byte " __stringify(BYTES_NOP5) "\n\t"
+ JUMP_TABLE_ENTRY
+ : : "i" (key), "i" (branch) : : l_yes);
+
+ return false;
+l_yes:
+ return true;
+}
+
+#endif /* CONFIG_HAVE_JUMP_LABEL_HACK */
+
+static __always_inline bool arch_static_branch_jump(struct static_key * const key, const bool branch)
+{
+ asm_volatile_goto("1:"
+ "jmp %l[l_yes]\n\t"
+ JUMP_TABLE_ENTRY
+ : : "i" (key), "i" (branch) : : l_yes);
+
+ return false;
+l_yes:
+ return true;
+}
+
+extern int arch_jump_entry_size(struct jump_entry *entry);
-struct jump_entry {
- jump_label_t code;
- jump_label_t target;
- jump_label_t key;
-};
+#endif /* __ASSEMBLY__ */
#endif
diff --git a/arch/x86/include/asm/kasan.h b/arch/x86/include/asm/kasan.h
new file mode 100644
index 000000000000..de75306b932e
--- /dev/null
+++ b/arch/x86/include/asm/kasan.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_KASAN_H
+#define _ASM_X86_KASAN_H
+
+#include <linux/const.h>
+#define KASAN_SHADOW_OFFSET _AC(CONFIG_KASAN_SHADOW_OFFSET, UL)
+#define KASAN_SHADOW_SCALE_SHIFT 3
+
+/*
+ * Compiler uses shadow offset assuming that addresses start
+ * from 0. Kernel addresses don't start from 0, so shadow
+ * for kernel really starts from compiler's shadow offset +
+ * 'kernel address space start' >> KASAN_SHADOW_SCALE_SHIFT
+ */
+#define KASAN_SHADOW_START (KASAN_SHADOW_OFFSET + \
+ ((-1UL << __VIRTUAL_MASK_SHIFT) >> \
+ KASAN_SHADOW_SCALE_SHIFT))
+/*
+ * 47 bits for kernel address -> (47 - KASAN_SHADOW_SCALE_SHIFT) bits for shadow
+ * 56 bits for kernel address -> (56 - KASAN_SHADOW_SCALE_SHIFT) bits for shadow
+ */
+#define KASAN_SHADOW_END (KASAN_SHADOW_START + \
+ (1ULL << (__VIRTUAL_MASK_SHIFT - \
+ KASAN_SHADOW_SCALE_SHIFT)))
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_KASAN
+void __init kasan_early_init(void);
+void __init kasan_init(void);
+void __init kasan_populate_shadow_for_vaddr(void *va, size_t size, int nid);
+#else
+static inline void kasan_early_init(void) { }
+static inline void kasan_init(void) { }
+static inline void kasan_populate_shadow_for_vaddr(void *va, size_t size,
+ int nid) { }
+#endif
+
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/kaslr.h b/arch/x86/include/asm/kaslr.h
new file mode 100644
index 000000000000..0648190467ba
--- /dev/null
+++ b/arch/x86/include/asm/kaslr.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_KASLR_H_
+#define _ASM_KASLR_H_
+
+unsigned long kaslr_get_random_long(const char *purpose);
+
+#ifdef CONFIG_RANDOMIZE_MEMORY
+void kernel_randomize_memory(void);
+void init_trampoline_kaslr(void);
+#else
+static inline void kernel_randomize_memory(void) { }
+static inline void init_trampoline_kaslr(void) {}
+#endif /* CONFIG_RANDOMIZE_MEMORY */
+
+#endif
diff --git a/arch/x86/include/asm/kbdleds.h b/arch/x86/include/asm/kbdleds.h
new file mode 100644
index 000000000000..197ea4fedd53
--- /dev/null
+++ b/arch/x86/include/asm/kbdleds.h
@@ -0,0 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_KBDLEDS_H
+#define _ASM_X86_KBDLEDS_H
+
+/*
+ * Some laptops take the 789uiojklm,. keys as number pad when NumLock is on.
+ * This seems a good reason to start with NumLock off. That's why on X86 we
+ * ask the bios for the correct state.
+ */
+
+#include <asm/setup.h>
+
+static inline int kbd_defleds(void)
+{
+ return boot_params.kbd_status & 0x20 ? (1 << VC_NUMLOCK) : 0;
+}
+
+#endif /* _ASM_X86_KBDLEDS_H */
diff --git a/arch/x86/include/asm/kdebug.h b/arch/x86/include/asm/kdebug.h
index fe2cc6e105fa..d1514e70477b 100644
--- a/arch/x86/include/asm/kdebug.h
+++ b/arch/x86/include/asm/kdebug.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_KDEBUG_H
#define _ASM_X86_KDEBUG_H
@@ -21,21 +22,24 @@ enum die_val {
DIE_NMIUNKNOWN,
};
-extern void printk_address(unsigned long address, int reliable);
+enum show_regs_mode {
+ SHOW_REGS_SHORT,
+ /*
+ * For when userspace crashed, but we don't think it's our fault, and
+ * therefore don't print kernel registers.
+ */
+ SHOW_REGS_USER,
+ SHOW_REGS_ALL
+};
+
extern void die(const char *, struct pt_regs *,long);
+void die_addr(const char *str, struct pt_regs *regs, long err, long gp_addr);
extern int __must_check __die(const char *, struct pt_regs *, long);
-extern void show_registers(struct pt_regs *regs);
-extern void show_trace(struct task_struct *t, struct pt_regs *regs,
- unsigned long *sp, unsigned long bp);
-extern void __show_regs(struct pt_regs *regs, int all);
-extern void show_regs(struct pt_regs *regs);
+extern void show_stack_regs(struct pt_regs *regs);
+extern void __show_regs(struct pt_regs *regs, enum show_regs_mode,
+ const char *log_lvl);
+extern void show_iret_regs(struct pt_regs *regs, const char *log_lvl);
extern unsigned long oops_begin(void);
extern void oops_end(unsigned long, struct pt_regs *, int signr);
-#ifdef CONFIG_KEXEC
-extern int in_crash_kexec;
-#else
-/* no crash dump is ever in progress if no crash kernel can be kexec'd */
-#define in_crash_kexec 0
-#endif
#endif /* _ASM_X86_KDEBUG_H */
diff --git a/arch/x86/include/asm/kexec-bzimage64.h b/arch/x86/include/asm/kexec-bzimage64.h
new file mode 100644
index 000000000000..df89ee7d3e9e
--- /dev/null
+++ b/arch/x86/include/asm/kexec-bzimage64.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_KEXEC_BZIMAGE64_H
+#define _ASM_KEXEC_BZIMAGE64_H
+
+extern const struct kexec_file_ops kexec_bzImage64_ops;
+
+#endif /* _ASM_KEXE_BZIMAGE64_H */
diff --git a/arch/x86/include/asm/kexec.h b/arch/x86/include/asm/kexec.h
index 317ff1703d0b..5b77bbc28f96 100644
--- a/arch/x86/include/asm/kexec.h
+++ b/arch/x86/include/asm/kexec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_KEXEC_H
#define _ASM_X86_KEXEC_H
@@ -20,9 +21,13 @@
#ifndef __ASSEMBLY__
#include <linux/string.h>
+#include <linux/kernel.h>
#include <asm/page.h>
#include <asm/ptrace.h>
+#include <asm/bootparam.h>
+
+struct kimage;
/*
* KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
@@ -48,11 +53,11 @@
# define vmcore_elf_check_arch_cross(x) ((x)->e_machine == EM_X86_64)
#else
/* Maximum physical address we can use pages from */
-# define KEXEC_SOURCE_MEMORY_LIMIT (0xFFFFFFFFFFUL)
+# define KEXEC_SOURCE_MEMORY_LIMIT (MAXMEM-1)
/* Maximum address we can reach in physical address mode */
-# define KEXEC_DESTINATION_MEMORY_LIMIT (0xFFFFFFFFFFUL)
+# define KEXEC_DESTINATION_MEMORY_LIMIT (MAXMEM-1)
/* Maximum address we can use for the control pages */
-# define KEXEC_CONTROL_MEMORY_LIMIT (0xFFFFFFFFFFUL)
+# define KEXEC_CONTROL_MEMORY_LIMIT (MAXMEM-1)
/* Allocate one page for the pdp and the second for the code */
# define KEXEC_CONTROL_PAGE_SIZE (4096UL + 4096UL)
@@ -62,22 +67,6 @@
#endif
/*
- * CPU does not save ss and sp on stack if execution is already
- * running in kernel mode at the time of NMI occurrence. This code
- * fixes it.
- */
-static inline void crash_fixup_ss_esp(struct pt_regs *newregs,
- struct pt_regs *oldregs)
-{
-#ifdef CONFIG_X86_32
- newregs->sp = (unsigned long)&(oldregs->sp);
- asm volatile("xorl %%eax, %%eax\n\t"
- "movw %%ss, %%ax\n\t"
- :"=a"(newregs->ss));
-#endif
-}
-
-/*
* This function is responsible for capturing register states if coming
* via panic otherwise just fix up the ss and sp if coming via kernel
* mode exception.
@@ -87,7 +76,6 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
{
if (oldregs) {
memcpy(newregs, oldregs, sizeof(*newregs));
- crash_fixup_ss_esp(newregs, oldregs);
} else {
#ifdef CONFIG_X86_32
asm volatile("movl %%ebx,%0" : "=m"(newregs->bx));
@@ -124,7 +112,7 @@ static inline void crash_setup_regs(struct pt_regs *newregs,
asm volatile("movl %%cs, %%eax;" :"=a"(newregs->cs));
asm volatile("pushfq; popq %0" :"=m"(newregs->flags));
#endif
- newregs->ip = (unsigned long)current_text_addr();
+ newregs->ip = _THIS_IP_;
}
}
@@ -140,7 +128,8 @@ unsigned long
relocate_kernel(unsigned long indirection_page,
unsigned long page_list,
unsigned long start_address,
- unsigned int preserve_context);
+ unsigned int preserve_context,
+ unsigned int host_mem_enc_active);
#endif
#define ARCH_HAS_KIMAGE_ARCH
@@ -157,11 +146,68 @@ struct kimage_arch {
};
#else
struct kimage_arch {
+ p4d_t *p4d;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
};
+#endif /* CONFIG_X86_32 */
+
+#ifdef CONFIG_X86_64
+/*
+ * Number of elements and order of elements in this structure should match
+ * with the ones in arch/x86/purgatory/entry64.S. If you make a change here
+ * make an appropriate change in purgatory too.
+ */
+struct kexec_entry64_regs {
+ uint64_t rax;
+ uint64_t rcx;
+ uint64_t rdx;
+ uint64_t rbx;
+ uint64_t rsp;
+ uint64_t rbp;
+ uint64_t rsi;
+ uint64_t rdi;
+ uint64_t r8;
+ uint64_t r9;
+ uint64_t r10;
+ uint64_t r11;
+ uint64_t r12;
+ uint64_t r13;
+ uint64_t r14;
+ uint64_t r15;
+ uint64_t rip;
+};
+
+extern int arch_kexec_post_alloc_pages(void *vaddr, unsigned int pages,
+ gfp_t gfp);
+#define arch_kexec_post_alloc_pages arch_kexec_post_alloc_pages
+
+extern void arch_kexec_pre_free_pages(void *vaddr, unsigned int pages);
+#define arch_kexec_pre_free_pages arch_kexec_pre_free_pages
+
+void arch_kexec_protect_crashkres(void);
+#define arch_kexec_protect_crashkres arch_kexec_protect_crashkres
+
+void arch_kexec_unprotect_crashkres(void);
+#define arch_kexec_unprotect_crashkres arch_kexec_unprotect_crashkres
+
+#ifdef CONFIG_KEXEC_FILE
+struct purgatory_info;
+int arch_kexec_apply_relocations_add(struct purgatory_info *pi,
+ Elf_Shdr *section,
+ const Elf_Shdr *relsec,
+ const Elf_Shdr *symtab);
+#define arch_kexec_apply_relocations_add arch_kexec_apply_relocations_add
+
+int arch_kimage_file_post_load_cleanup(struct kimage *image);
+#define arch_kimage_file_post_load_cleanup arch_kimage_file_post_load_cleanup
#endif
+#endif
+
+typedef void crash_vmclear_fn(void);
+extern crash_vmclear_fn __rcu *crash_vmclear_loaded_vmcss;
+extern void kdump_nmi_shootdown_cpus(void);
#endif /* __ASSEMBLY__ */
diff --git a/arch/x86/include/asm/kfence.h b/arch/x86/include/asm/kfence.h
new file mode 100644
index 000000000000..ff5c7134a37a
--- /dev/null
+++ b/arch/x86/include/asm/kfence.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * x86 KFENCE support.
+ *
+ * Copyright (C) 2020, Google LLC.
+ */
+
+#ifndef _ASM_X86_KFENCE_H
+#define _ASM_X86_KFENCE_H
+
+#ifndef MODULE
+
+#include <linux/bug.h>
+#include <linux/kfence.h>
+
+#include <asm/pgalloc.h>
+#include <asm/pgtable.h>
+#include <asm/set_memory.h>
+#include <asm/tlbflush.h>
+
+/* Force 4K pages for __kfence_pool. */
+static inline bool arch_kfence_init_pool(void)
+{
+ unsigned long addr;
+
+ for (addr = (unsigned long)__kfence_pool; is_kfence_address((void *)addr);
+ addr += PAGE_SIZE) {
+ unsigned int level;
+
+ if (!lookup_address(addr, &level))
+ return false;
+
+ if (level != PG_LEVEL_4K)
+ set_memory_4k(addr, 1);
+ }
+
+ return true;
+}
+
+/* Protect the given page and flush TLB. */
+static inline bool kfence_protect_page(unsigned long addr, bool protect)
+{
+ unsigned int level;
+ pte_t *pte = lookup_address(addr, &level);
+
+ if (WARN_ON(!pte || level != PG_LEVEL_4K))
+ return false;
+
+ /*
+ * We need to avoid IPIs, as we may get KFENCE allocations or faults
+ * with interrupts disabled. Therefore, the below is best-effort, and
+ * does not flush TLBs on all CPUs. We can tolerate some inaccuracy;
+ * lazy fault handling takes care of faults after the page is PRESENT.
+ */
+
+ if (protect)
+ set_pte(pte, __pte(pte_val(*pte) & ~_PAGE_PRESENT));
+ else
+ set_pte(pte, __pte(pte_val(*pte) | _PAGE_PRESENT));
+
+ /*
+ * Flush this CPU's TLB, assuming whoever did the allocation/free is
+ * likely to continue running on this CPU.
+ */
+ preempt_disable();
+ flush_tlb_one_kernel(addr);
+ preempt_enable();
+ return true;
+}
+
+#endif /* !MODULE */
+
+#endif /* _ASM_X86_KFENCE_H */
diff --git a/arch/x86/include/asm/kgdb.h b/arch/x86/include/asm/kgdb.h
index 396f5b5fc4d7..aacaf2502bd2 100644
--- a/arch/x86/include/asm/kgdb.h
+++ b/arch/x86/include/asm/kgdb.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_KGDB_H
#define _ASM_X86_KGDB_H
@@ -6,6 +7,8 @@
* Copyright (C) 2008 Wind River Systems, Inc.
*/
+#include <asm/ptrace.h>
+
/*
* BUFMAX defines the maximum number of characters in inbound/outbound
* buffers at least NUMREGBYTES*2 are needed for register packets
@@ -64,11 +67,15 @@ enum regnames {
GDB_PS, /* 17 */
GDB_CS, /* 18 */
GDB_SS, /* 19 */
+ GDB_DS, /* 20 */
+ GDB_ES, /* 21 */
+ GDB_FS, /* 22 */
+ GDB_GS, /* 23 */
};
#define GDB_ORIG_AX 57
-#define DBG_MAX_REG_NUM 20
-/* 17 64 bit regs and 3 32 bit regs */
-#define NUMREGBYTES ((17 * 8) + (3 * 4))
+#define DBG_MAX_REG_NUM 24
+/* 17 64 bit regs and 5 32 bit regs */
+#define NUMREGBYTES ((17 * 8) + (5 * 4))
#endif /* ! CONFIG_X86_32 */
static inline void arch_kgdb_breakpoint(void)
@@ -77,6 +84,7 @@ static inline void arch_kgdb_breakpoint(void)
}
#define BREAK_INSTR_SIZE 1
#define CACHE_FLUSH_IS_SAFE 1
+#define GDB_ADJUSTS_BREAK_OFFSET
extern int kgdb_ll_trap(int cmd, const char *str,
struct pt_regs *regs, long err, int trap, int sig);
diff --git a/arch/x86/include/asm/kmap_types.h b/arch/x86/include/asm/kmap_types.h
deleted file mode 100644
index 9e00a731a7fb..000000000000
--- a/arch/x86/include/asm/kmap_types.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_X86_KMAP_TYPES_H
-#define _ASM_X86_KMAP_TYPES_H
-
-#if defined(CONFIG_X86_32) && defined(CONFIG_DEBUG_HIGHMEM)
-#define __WITH_KM_FENCE
-#endif
-
-#include <asm-generic/kmap_types.h>
-
-#undef __WITH_KM_FENCE
-
-#endif /* _ASM_X86_KMAP_TYPES_H */
diff --git a/arch/x86/include/asm/kmemcheck.h b/arch/x86/include/asm/kmemcheck.h
deleted file mode 100644
index ed01518f297e..000000000000
--- a/arch/x86/include/asm/kmemcheck.h
+++ /dev/null
@@ -1,42 +0,0 @@
-#ifndef ASM_X86_KMEMCHECK_H
-#define ASM_X86_KMEMCHECK_H
-
-#include <linux/types.h>
-#include <asm/ptrace.h>
-
-#ifdef CONFIG_KMEMCHECK
-bool kmemcheck_active(struct pt_regs *regs);
-
-void kmemcheck_show(struct pt_regs *regs);
-void kmemcheck_hide(struct pt_regs *regs);
-
-bool kmemcheck_fault(struct pt_regs *regs,
- unsigned long address, unsigned long error_code);
-bool kmemcheck_trap(struct pt_regs *regs);
-#else
-static inline bool kmemcheck_active(struct pt_regs *regs)
-{
- return false;
-}
-
-static inline void kmemcheck_show(struct pt_regs *regs)
-{
-}
-
-static inline void kmemcheck_hide(struct pt_regs *regs)
-{
-}
-
-static inline bool kmemcheck_fault(struct pt_regs *regs,
- unsigned long address, unsigned long error_code)
-{
- return false;
-}
-
-static inline bool kmemcheck_trap(struct pt_regs *regs)
-{
- return false;
-}
-#endif /* CONFIG_KMEMCHECK */
-
-#endif
diff --git a/arch/x86/include/asm/kmsan.h b/arch/x86/include/asm/kmsan.h
new file mode 100644
index 000000000000..8fa6ac0e2d76
--- /dev/null
+++ b/arch/x86/include/asm/kmsan.h
@@ -0,0 +1,87 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * x86 KMSAN support.
+ *
+ * Copyright (C) 2022, Google LLC
+ * Author: Alexander Potapenko <glider@google.com>
+ */
+
+#ifndef _ASM_X86_KMSAN_H
+#define _ASM_X86_KMSAN_H
+
+#ifndef MODULE
+
+#include <asm/cpu_entry_area.h>
+#include <asm/processor.h>
+#include <linux/mmzone.h>
+
+DECLARE_PER_CPU(char[CPU_ENTRY_AREA_SIZE], cpu_entry_area_shadow);
+DECLARE_PER_CPU(char[CPU_ENTRY_AREA_SIZE], cpu_entry_area_origin);
+
+/*
+ * Functions below are declared in the header to make sure they are inlined.
+ * They all are called from kmsan_get_metadata() for every memory access in
+ * the kernel, so speed is important here.
+ */
+
+/*
+ * Compute metadata addresses for the CPU entry area on x86.
+ */
+static inline void *arch_kmsan_get_meta_or_null(void *addr, bool is_origin)
+{
+ unsigned long addr64 = (unsigned long)addr;
+ char *metadata_array;
+ unsigned long off;
+ int cpu;
+
+ if ((addr64 < CPU_ENTRY_AREA_BASE) ||
+ (addr64 >= (CPU_ENTRY_AREA_BASE + CPU_ENTRY_AREA_MAP_SIZE)))
+ return NULL;
+ cpu = (addr64 - CPU_ENTRY_AREA_BASE) / CPU_ENTRY_AREA_SIZE;
+ off = addr64 - (unsigned long)get_cpu_entry_area(cpu);
+ if ((off < 0) || (off >= CPU_ENTRY_AREA_SIZE))
+ return NULL;
+ metadata_array = is_origin ? cpu_entry_area_origin :
+ cpu_entry_area_shadow;
+ return &per_cpu(metadata_array[off], cpu);
+}
+
+/*
+ * Taken from arch/x86/mm/physaddr.h to avoid using an instrumented version.
+ */
+static inline bool kmsan_phys_addr_valid(unsigned long addr)
+{
+ if (IS_ENABLED(CONFIG_PHYS_ADDR_T_64BIT))
+ return !(addr >> boot_cpu_data.x86_phys_bits);
+ else
+ return true;
+}
+
+/*
+ * Taken from arch/x86/mm/physaddr.c to avoid using an instrumented version.
+ */
+static inline bool kmsan_virt_addr_valid(void *addr)
+{
+ unsigned long x = (unsigned long)addr;
+ unsigned long y = x - __START_KERNEL_map;
+
+ /* use the carry flag to determine if x was < __START_KERNEL_map */
+ if (unlikely(x > y)) {
+ x = y + phys_base;
+
+ if (y >= KERNEL_IMAGE_SIZE)
+ return false;
+ } else {
+ x = y + (__START_KERNEL_map - PAGE_OFFSET);
+
+ /* carry flag will be set if starting x was >= PAGE_OFFSET */
+ if ((x > y) || !kmsan_phys_addr_valid(x))
+ return false;
+ }
+
+ return pfn_valid(x >> PAGE_SHIFT);
+}
+
+#endif /* !MODULE */
+
+#endif /* _ASM_X86_KMSAN_H */
diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h
index 547882539157..a2e9317aad49 100644
--- a/arch/x86/include/asm/kprobes.h
+++ b/arch/x86/include/asm/kprobes.h
@@ -1,29 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_X86_KPROBES_H
#define _ASM_X86_KPROBES_H
/*
* Kernel Probes (KProbes)
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
* Copyright (C) IBM Corporation, 2002, 2004
*
* See arch/x86/kernel/kprobes.c for x86 kprobes history.
*/
+
+#include <asm-generic/kprobes.h>
+
+#ifdef CONFIG_KPROBES
#include <linux/types.h>
#include <linux/ptrace.h>
#include <linux/percpu.h>
+#include <asm/text-patching.h>
#include <asm/insn.h>
#define __ARCH_WANT_KPROBES_INSN_SLOT
@@ -32,55 +24,67 @@ struct pt_regs;
struct kprobe;
typedef u8 kprobe_opcode_t;
-#define BREAKPOINT_INSTRUCTION 0xcc
-#define RELATIVEJUMP_OPCODE 0xe9
-#define RELATIVEJUMP_SIZE 5
-#define RELATIVECALL_OPCODE 0xe8
-#define RELATIVE_ADDR_SIZE 4
+
#define MAX_STACK_SIZE 64
-#define MIN_STACK_SIZE(ADDR) \
- (((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \
- THREAD_SIZE - (unsigned long)(ADDR))) \
- ? (MAX_STACK_SIZE) \
- : (((unsigned long)current_thread_info()) + \
- THREAD_SIZE - (unsigned long)(ADDR)))
+#define CUR_STACK_SIZE(ADDR) \
+ (current_top_of_stack() - (unsigned long)(ADDR))
+#define MIN_STACK_SIZE(ADDR) \
+ (MAX_STACK_SIZE < CUR_STACK_SIZE(ADDR) ? \
+ MAX_STACK_SIZE : CUR_STACK_SIZE(ADDR))
#define flush_insn_slot(p) do { } while (0)
/* optinsn template addresses */
-extern kprobe_opcode_t optprobe_template_entry;
-extern kprobe_opcode_t optprobe_template_val;
-extern kprobe_opcode_t optprobe_template_call;
-extern kprobe_opcode_t optprobe_template_end;
-#define MAX_OPTIMIZED_LENGTH (MAX_INSN_SIZE + RELATIVE_ADDR_SIZE)
+extern __visible kprobe_opcode_t optprobe_template_entry[];
+extern __visible kprobe_opcode_t optprobe_template_clac[];
+extern __visible kprobe_opcode_t optprobe_template_val[];
+extern __visible kprobe_opcode_t optprobe_template_call[];
+extern __visible kprobe_opcode_t optprobe_template_end[];
+#define MAX_OPTIMIZED_LENGTH (MAX_INSN_SIZE + DISP32_SIZE)
#define MAX_OPTINSN_SIZE \
- (((unsigned long)&optprobe_template_end - \
- (unsigned long)&optprobe_template_entry) + \
- MAX_OPTIMIZED_LENGTH + RELATIVEJUMP_SIZE)
+ (((unsigned long)optprobe_template_end - \
+ (unsigned long)optprobe_template_entry) + \
+ MAX_OPTIMIZED_LENGTH + JMP32_INSN_SIZE)
extern const int kretprobe_blacklist_size;
void arch_remove_kprobe(struct kprobe *p);
-void kretprobe_trampoline(void);
/* Architecture specific copy of original instruction*/
struct arch_specific_insn {
/* copy of the original instruction */
kprobe_opcode_t *insn;
/*
- * boostable = -1: This instruction type is not boostable.
- * boostable = 0: This instruction type is boostable.
+ * boostable = 0: This instruction type is not boostable.
* boostable = 1: This instruction has been boosted: we have
* added a relative jump after the instruction copy in insn,
* so no single-step and fixup are needed (unless there's
- * a post_handler or break_handler).
+ * a post_handler).
*/
- int boostable;
+ unsigned boostable:1;
+ unsigned char size; /* The size of insn */
+ union {
+ unsigned char opcode;
+ struct {
+ unsigned char type;
+ } jcc;
+ struct {
+ unsigned char type;
+ unsigned char asize;
+ } loop;
+ struct {
+ unsigned char reg;
+ } indirect;
+ };
+ s32 rel32; /* relative offset must be s32, s16, or s8 */
+ void (*emulate_op)(struct kprobe *p, struct pt_regs *regs);
+ /* Number of bytes of text poked */
+ int tp_len;
};
struct arch_optimized_insn {
/* copy of the original instructions */
- kprobe_opcode_t copied_insn[RELATIVE_ADDR_SIZE];
+ kprobe_opcode_t copied_insn[DISP32_SIZE];
/* detour code buffer */
kprobe_opcode_t *insn;
/* the size of instructions copied to detour code buffer */
@@ -105,13 +109,17 @@ struct kprobe_ctlblk {
unsigned long kprobe_status;
unsigned long kprobe_old_flags;
unsigned long kprobe_saved_flags;
- unsigned long *jprobe_saved_sp;
- struct pt_regs jprobe_saved_regs;
- kprobe_opcode_t jprobes_stack[MAX_STACK_SIZE];
struct prev_kprobe prev_kprobe;
};
extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
extern int kprobe_exceptions_notify(struct notifier_block *self,
unsigned long val, void *data);
+extern int kprobe_int3_handler(struct pt_regs *regs);
+
+#else
+
+static inline int kprobe_debug_handler(struct pt_regs *regs) { return 0; }
+
+#endif /* CONFIG_KPROBES */
#endif /* _ASM_X86_KPROBES_H */
diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h
new file mode 100644
index 000000000000..13bc212cd4bc
--- /dev/null
+++ b/arch/x86/include/asm/kvm-x86-ops.h
@@ -0,0 +1,139 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(KVM_X86_OP) || !defined(KVM_X86_OP_OPTIONAL)
+BUILD_BUG_ON(1)
+#endif
+
+/*
+ * KVM_X86_OP() and KVM_X86_OP_OPTIONAL() are used to help generate
+ * both DECLARE/DEFINE_STATIC_CALL() invocations and
+ * "static_call_update()" calls.
+ *
+ * KVM_X86_OP_OPTIONAL() can be used for those functions that can have
+ * a NULL definition, for example if "static_call_cond()" will be used
+ * at the call sites. KVM_X86_OP_OPTIONAL_RET0() can be used likewise
+ * to make a definition optional, but in this case the default will
+ * be __static_call_return0.
+ */
+KVM_X86_OP(check_processor_compatibility)
+KVM_X86_OP(hardware_enable)
+KVM_X86_OP(hardware_disable)
+KVM_X86_OP(hardware_unsetup)
+KVM_X86_OP(has_emulated_msr)
+KVM_X86_OP(vcpu_after_set_cpuid)
+KVM_X86_OP(vm_init)
+KVM_X86_OP_OPTIONAL(vm_destroy)
+KVM_X86_OP_OPTIONAL_RET0(vcpu_precreate)
+KVM_X86_OP(vcpu_create)
+KVM_X86_OP(vcpu_free)
+KVM_X86_OP(vcpu_reset)
+KVM_X86_OP(prepare_switch_to_guest)
+KVM_X86_OP(vcpu_load)
+KVM_X86_OP(vcpu_put)
+KVM_X86_OP(update_exception_bitmap)
+KVM_X86_OP(get_msr)
+KVM_X86_OP(set_msr)
+KVM_X86_OP(get_segment_base)
+KVM_X86_OP(get_segment)
+KVM_X86_OP(get_cpl)
+KVM_X86_OP(set_segment)
+KVM_X86_OP(get_cs_db_l_bits)
+KVM_X86_OP(set_cr0)
+KVM_X86_OP_OPTIONAL(post_set_cr3)
+KVM_X86_OP(is_valid_cr4)
+KVM_X86_OP(set_cr4)
+KVM_X86_OP(set_efer)
+KVM_X86_OP(get_idt)
+KVM_X86_OP(set_idt)
+KVM_X86_OP(get_gdt)
+KVM_X86_OP(set_gdt)
+KVM_X86_OP(sync_dirty_debug_regs)
+KVM_X86_OP(set_dr7)
+KVM_X86_OP(cache_reg)
+KVM_X86_OP(get_rflags)
+KVM_X86_OP(set_rflags)
+KVM_X86_OP(get_if_flag)
+KVM_X86_OP(flush_tlb_all)
+KVM_X86_OP(flush_tlb_current)
+KVM_X86_OP_OPTIONAL(flush_remote_tlbs)
+KVM_X86_OP_OPTIONAL(flush_remote_tlbs_range)
+KVM_X86_OP(flush_tlb_gva)
+KVM_X86_OP(flush_tlb_guest)
+KVM_X86_OP(vcpu_pre_run)
+KVM_X86_OP(vcpu_run)
+KVM_X86_OP(handle_exit)
+KVM_X86_OP(skip_emulated_instruction)
+KVM_X86_OP_OPTIONAL(update_emulated_instruction)
+KVM_X86_OP(set_interrupt_shadow)
+KVM_X86_OP(get_interrupt_shadow)
+KVM_X86_OP(patch_hypercall)
+KVM_X86_OP(inject_irq)
+KVM_X86_OP(inject_nmi)
+KVM_X86_OP_OPTIONAL_RET0(is_vnmi_pending)
+KVM_X86_OP_OPTIONAL_RET0(set_vnmi_pending)
+KVM_X86_OP(inject_exception)
+KVM_X86_OP(cancel_injection)
+KVM_X86_OP(interrupt_allowed)
+KVM_X86_OP(nmi_allowed)
+KVM_X86_OP(get_nmi_mask)
+KVM_X86_OP(set_nmi_mask)
+KVM_X86_OP(enable_nmi_window)
+KVM_X86_OP(enable_irq_window)
+KVM_X86_OP_OPTIONAL(update_cr8_intercept)
+KVM_X86_OP(refresh_apicv_exec_ctrl)
+KVM_X86_OP_OPTIONAL(hwapic_irr_update)
+KVM_X86_OP_OPTIONAL(hwapic_isr_update)
+KVM_X86_OP_OPTIONAL_RET0(guest_apic_has_interrupt)
+KVM_X86_OP_OPTIONAL(load_eoi_exitmap)
+KVM_X86_OP_OPTIONAL(set_virtual_apic_mode)
+KVM_X86_OP_OPTIONAL(set_apic_access_page_addr)
+KVM_X86_OP(deliver_interrupt)
+KVM_X86_OP_OPTIONAL(sync_pir_to_irr)
+KVM_X86_OP_OPTIONAL_RET0(set_tss_addr)
+KVM_X86_OP_OPTIONAL_RET0(set_identity_map_addr)
+KVM_X86_OP_OPTIONAL_RET0(get_mt_mask)
+KVM_X86_OP(load_mmu_pgd)
+KVM_X86_OP(has_wbinvd_exit)
+KVM_X86_OP(get_l2_tsc_offset)
+KVM_X86_OP(get_l2_tsc_multiplier)
+KVM_X86_OP(write_tsc_offset)
+KVM_X86_OP(write_tsc_multiplier)
+KVM_X86_OP(get_exit_info)
+KVM_X86_OP(check_intercept)
+KVM_X86_OP(handle_exit_irqoff)
+KVM_X86_OP(request_immediate_exit)
+KVM_X86_OP(sched_in)
+KVM_X86_OP_OPTIONAL(update_cpu_dirty_logging)
+KVM_X86_OP_OPTIONAL(vcpu_blocking)
+KVM_X86_OP_OPTIONAL(vcpu_unblocking)
+KVM_X86_OP_OPTIONAL(pi_update_irte)
+KVM_X86_OP_OPTIONAL(pi_start_assignment)
+KVM_X86_OP_OPTIONAL(apicv_post_state_restore)
+KVM_X86_OP_OPTIONAL_RET0(dy_apicv_has_pending_interrupt)
+KVM_X86_OP_OPTIONAL(set_hv_timer)
+KVM_X86_OP_OPTIONAL(cancel_hv_timer)
+KVM_X86_OP(setup_mce)
+#ifdef CONFIG_KVM_SMM
+KVM_X86_OP(smi_allowed)
+KVM_X86_OP(enter_smm)
+KVM_X86_OP(leave_smm)
+KVM_X86_OP(enable_smi_window)
+#endif
+KVM_X86_OP_OPTIONAL(mem_enc_ioctl)
+KVM_X86_OP_OPTIONAL(mem_enc_register_region)
+KVM_X86_OP_OPTIONAL(mem_enc_unregister_region)
+KVM_X86_OP_OPTIONAL(vm_copy_enc_context_from)
+KVM_X86_OP_OPTIONAL(vm_move_enc_context_from)
+KVM_X86_OP_OPTIONAL(guest_memory_reclaimed)
+KVM_X86_OP(get_msr_feature)
+KVM_X86_OP(can_emulate_instruction)
+KVM_X86_OP(apic_init_signal_blocked)
+KVM_X86_OP_OPTIONAL(enable_l2_tlb_flush)
+KVM_X86_OP_OPTIONAL(migrate_timers)
+KVM_X86_OP(msr_filter_changed)
+KVM_X86_OP(complete_emulated_msr)
+KVM_X86_OP(vcpu_deliver_sipi_vector)
+KVM_X86_OP_OPTIONAL_RET0(vcpu_get_apicv_inhibit_reasons);
+
+#undef KVM_X86_OP
+#undef KVM_X86_OP_OPTIONAL
+#undef KVM_X86_OP_OPTIONAL_RET0
diff --git a/arch/x86/include/asm/kvm-x86-pmu-ops.h b/arch/x86/include/asm/kvm-x86-pmu-ops.h
new file mode 100644
index 000000000000..c17e3e96fc1d
--- /dev/null
+++ b/arch/x86/include/asm/kvm-x86-pmu-ops.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#if !defined(KVM_X86_PMU_OP) || !defined(KVM_X86_PMU_OP_OPTIONAL)
+BUILD_BUG_ON(1)
+#endif
+
+/*
+ * KVM_X86_PMU_OP() and KVM_X86_PMU_OP_OPTIONAL() are used to help generate
+ * both DECLARE/DEFINE_STATIC_CALL() invocations and
+ * "static_call_update()" calls.
+ *
+ * KVM_X86_PMU_OP_OPTIONAL() can be used for those functions that can have
+ * a NULL definition, for example if "static_call_cond()" will be used
+ * at the call sites.
+ */
+KVM_X86_PMU_OP(hw_event_available)
+KVM_X86_PMU_OP(pmc_is_enabled)
+KVM_X86_PMU_OP(pmc_idx_to_pmc)
+KVM_X86_PMU_OP(rdpmc_ecx_to_pmc)
+KVM_X86_PMU_OP(msr_idx_to_pmc)
+KVM_X86_PMU_OP(is_valid_rdpmc_ecx)
+KVM_X86_PMU_OP(is_valid_msr)
+KVM_X86_PMU_OP(get_msr)
+KVM_X86_PMU_OP(set_msr)
+KVM_X86_PMU_OP(refresh)
+KVM_X86_PMU_OP(init)
+KVM_X86_PMU_OP(reset)
+KVM_X86_PMU_OP_OPTIONAL(deliver_pmi)
+KVM_X86_PMU_OP_OPTIONAL(cleanup)
+
+#undef KVM_X86_PMU_OP
+#undef KVM_X86_PMU_OP_OPTIONAL
diff --git a/arch/x86/include/asm/kvm.h b/arch/x86/include/asm/kvm.h
deleted file mode 100644
index 4d8dcbdfc120..000000000000
--- a/arch/x86/include/asm/kvm.h
+++ /dev/null
@@ -1,324 +0,0 @@
-#ifndef _ASM_X86_KVM_H
-#define _ASM_X86_KVM_H
-
-/*
- * KVM x86 specific structures and definitions
- *
- */
-
-#include <linux/types.h>
-#include <linux/ioctl.h>
-
-/* Select x86 specific features in <linux/kvm.h> */
-#define __KVM_HAVE_PIT
-#define __KVM_HAVE_IOAPIC
-#define __KVM_HAVE_DEVICE_ASSIGNMENT
-#define __KVM_HAVE_MSI
-#define __KVM_HAVE_USER_NMI
-#define __KVM_HAVE_GUEST_DEBUG
-#define __KVM_HAVE_MSIX
-#define __KVM_HAVE_MCE
-#define __KVM_HAVE_PIT_STATE2
-#define __KVM_HAVE_XEN_HVM
-#define __KVM_HAVE_VCPU_EVENTS
-#define __KVM_HAVE_DEBUGREGS
-#define __KVM_HAVE_XSAVE
-#define __KVM_HAVE_XCRS
-
-/* Architectural interrupt line count. */
-#define KVM_NR_INTERRUPTS 256
-
-struct kvm_memory_alias {
- __u32 slot; /* this has a different namespace than memory slots */
- __u32 flags;
- __u64 guest_phys_addr;
- __u64 memory_size;
- __u64 target_phys_addr;
-};
-
-/* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */
-struct kvm_pic_state {
- __u8 last_irr; /* edge detection */
- __u8 irr; /* interrupt request register */
- __u8 imr; /* interrupt mask register */
- __u8 isr; /* interrupt service register */
- __u8 priority_add; /* highest irq priority */
- __u8 irq_base;
- __u8 read_reg_select;
- __u8 poll;
- __u8 special_mask;
- __u8 init_state;
- __u8 auto_eoi;
- __u8 rotate_on_auto_eoi;
- __u8 special_fully_nested_mode;
- __u8 init4; /* true if 4 byte init */
- __u8 elcr; /* PIIX edge/trigger selection */
- __u8 elcr_mask;
-};
-
-#define KVM_IOAPIC_NUM_PINS 24
-struct kvm_ioapic_state {
- __u64 base_address;
- __u32 ioregsel;
- __u32 id;
- __u32 irr;
- __u32 pad;
- union {
- __u64 bits;
- struct {
- __u8 vector;
- __u8 delivery_mode:3;
- __u8 dest_mode:1;
- __u8 delivery_status:1;
- __u8 polarity:1;
- __u8 remote_irr:1;
- __u8 trig_mode:1;
- __u8 mask:1;
- __u8 reserve:7;
- __u8 reserved[4];
- __u8 dest_id;
- } fields;
- } redirtbl[KVM_IOAPIC_NUM_PINS];
-};
-
-#define KVM_IRQCHIP_PIC_MASTER 0
-#define KVM_IRQCHIP_PIC_SLAVE 1
-#define KVM_IRQCHIP_IOAPIC 2
-#define KVM_NR_IRQCHIPS 3
-
-/* for KVM_GET_REGS and KVM_SET_REGS */
-struct kvm_regs {
- /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */
- __u64 rax, rbx, rcx, rdx;
- __u64 rsi, rdi, rsp, rbp;
- __u64 r8, r9, r10, r11;
- __u64 r12, r13, r14, r15;
- __u64 rip, rflags;
-};
-
-/* for KVM_GET_LAPIC and KVM_SET_LAPIC */
-#define KVM_APIC_REG_SIZE 0x400
-struct kvm_lapic_state {
- char regs[KVM_APIC_REG_SIZE];
-};
-
-struct kvm_segment {
- __u64 base;
- __u32 limit;
- __u16 selector;
- __u8 type;
- __u8 present, dpl, db, s, l, g, avl;
- __u8 unusable;
- __u8 padding;
-};
-
-struct kvm_dtable {
- __u64 base;
- __u16 limit;
- __u16 padding[3];
-};
-
-
-/* for KVM_GET_SREGS and KVM_SET_SREGS */
-struct kvm_sregs {
- /* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */
- struct kvm_segment cs, ds, es, fs, gs, ss;
- struct kvm_segment tr, ldt;
- struct kvm_dtable gdt, idt;
- __u64 cr0, cr2, cr3, cr4, cr8;
- __u64 efer;
- __u64 apic_base;
- __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64];
-};
-
-/* for KVM_GET_FPU and KVM_SET_FPU */
-struct kvm_fpu {
- __u8 fpr[8][16];
- __u16 fcw;
- __u16 fsw;
- __u8 ftwx; /* in fxsave format */
- __u8 pad1;
- __u16 last_opcode;
- __u64 last_ip;
- __u64 last_dp;
- __u8 xmm[16][16];
- __u32 mxcsr;
- __u32 pad2;
-};
-
-struct kvm_msr_entry {
- __u32 index;
- __u32 reserved;
- __u64 data;
-};
-
-/* for KVM_GET_MSRS and KVM_SET_MSRS */
-struct kvm_msrs {
- __u32 nmsrs; /* number of msrs in entries */
- __u32 pad;
-
- struct kvm_msr_entry entries[0];
-};
-
-/* for KVM_GET_MSR_INDEX_LIST */
-struct kvm_msr_list {
- __u32 nmsrs; /* number of msrs in entries */
- __u32 indices[0];
-};
-
-
-struct kvm_cpuid_entry {
- __u32 function;
- __u32 eax;
- __u32 ebx;
- __u32 ecx;
- __u32 edx;
- __u32 padding;
-};
-
-/* for KVM_SET_CPUID */
-struct kvm_cpuid {
- __u32 nent;
- __u32 padding;
- struct kvm_cpuid_entry entries[0];
-};
-
-struct kvm_cpuid_entry2 {
- __u32 function;
- __u32 index;
- __u32 flags;
- __u32 eax;
- __u32 ebx;
- __u32 ecx;
- __u32 edx;
- __u32 padding[3];
-};
-
-#define KVM_CPUID_FLAG_SIGNIFCANT_INDEX 1
-#define KVM_CPUID_FLAG_STATEFUL_FUNC 2
-#define KVM_CPUID_FLAG_STATE_READ_NEXT 4
-
-/* for KVM_SET_CPUID2 */
-struct kvm_cpuid2 {
- __u32 nent;
- __u32 padding;
- struct kvm_cpuid_entry2 entries[0];
-};
-
-/* for KVM_GET_PIT and KVM_SET_PIT */
-struct kvm_pit_channel_state {
- __u32 count; /* can be 65536 */
- __u16 latched_count;
- __u8 count_latched;
- __u8 status_latched;
- __u8 status;
- __u8 read_state;
- __u8 write_state;
- __u8 write_latch;
- __u8 rw_mode;
- __u8 mode;
- __u8 bcd;
- __u8 gate;
- __s64 count_load_time;
-};
-
-struct kvm_debug_exit_arch {
- __u32 exception;
- __u32 pad;
- __u64 pc;
- __u64 dr6;
- __u64 dr7;
-};
-
-#define KVM_GUESTDBG_USE_SW_BP 0x00010000
-#define KVM_GUESTDBG_USE_HW_BP 0x00020000
-#define KVM_GUESTDBG_INJECT_DB 0x00040000
-#define KVM_GUESTDBG_INJECT_BP 0x00080000
-
-/* for KVM_SET_GUEST_DEBUG */
-struct kvm_guest_debug_arch {
- __u64 debugreg[8];
-};
-
-struct kvm_pit_state {
- struct kvm_pit_channel_state channels[3];
-};
-
-#define KVM_PIT_FLAGS_HPET_LEGACY 0x00000001
-
-struct kvm_pit_state2 {
- struct kvm_pit_channel_state channels[3];
- __u32 flags;
- __u32 reserved[9];
-};
-
-struct kvm_reinject_control {
- __u8 pit_reinject;
- __u8 reserved[31];
-};
-
-/* When set in flags, include corresponding fields on KVM_SET_VCPU_EVENTS */
-#define KVM_VCPUEVENT_VALID_NMI_PENDING 0x00000001
-#define KVM_VCPUEVENT_VALID_SIPI_VECTOR 0x00000002
-#define KVM_VCPUEVENT_VALID_SHADOW 0x00000004
-
-/* Interrupt shadow states */
-#define KVM_X86_SHADOW_INT_MOV_SS 0x01
-#define KVM_X86_SHADOW_INT_STI 0x02
-
-/* for KVM_GET/SET_VCPU_EVENTS */
-struct kvm_vcpu_events {
- struct {
- __u8 injected;
- __u8 nr;
- __u8 has_error_code;
- __u8 pad;
- __u32 error_code;
- } exception;
- struct {
- __u8 injected;
- __u8 nr;
- __u8 soft;
- __u8 shadow;
- } interrupt;
- struct {
- __u8 injected;
- __u8 pending;
- __u8 masked;
- __u8 pad;
- } nmi;
- __u32 sipi_vector;
- __u32 flags;
- __u32 reserved[10];
-};
-
-/* for KVM_GET/SET_DEBUGREGS */
-struct kvm_debugregs {
- __u64 db[4];
- __u64 dr6;
- __u64 dr7;
- __u64 flags;
- __u64 reserved[9];
-};
-
-/* for KVM_CAP_XSAVE */
-struct kvm_xsave {
- __u32 region[1024];
-};
-
-#define KVM_MAX_XCRS 16
-
-struct kvm_xcr {
- __u32 xcr;
- __u32 reserved;
- __u64 value;
-};
-
-struct kvm_xcrs {
- __u32 nr_xcrs;
- __u32 flags;
- struct kvm_xcr xcrs[KVM_MAX_XCRS];
- __u64 padding[16];
-};
-
-#endif /* _ASM_X86_KVM_H */
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
deleted file mode 100644
index 0f5213564326..000000000000
--- a/arch/x86/include/asm/kvm_emulate.h
+++ /dev/null
@@ -1,279 +0,0 @@
-/******************************************************************************
- * x86_emulate.h
- *
- * Generic x86 (32-bit and 64-bit) instruction decoder and emulator.
- *
- * Copyright (c) 2005 Keir Fraser
- *
- * From: xen-unstable 10676:af9809f51f81a3c43f276f00c81a52ef558afda4
- */
-
-#ifndef _ASM_X86_KVM_X86_EMULATE_H
-#define _ASM_X86_KVM_X86_EMULATE_H
-
-#include <asm/desc_defs.h>
-
-struct x86_emulate_ctxt;
-
-struct x86_exception {
- u8 vector;
- bool error_code_valid;
- u16 error_code;
- bool nested_page_fault;
- u64 address; /* cr2 or nested page fault gpa */
-};
-
-/*
- * x86_emulate_ops:
- *
- * These operations represent the instruction emulator's interface to memory.
- * There are two categories of operation: those that act on ordinary memory
- * regions (*_std), and those that act on memory regions known to require
- * special treatment or emulation (*_emulated).
- *
- * The emulator assumes that an instruction accesses only one 'emulated memory'
- * location, that this location is the given linear faulting address (cr2), and
- * that this is one of the instruction's data operands. Instruction fetches and
- * stack operations are assumed never to access emulated memory. The emulator
- * automatically deduces which operand of a string-move operation is accessing
- * emulated memory, and assumes that the other operand accesses normal memory.
- *
- * NOTES:
- * 1. The emulator isn't very smart about emulated vs. standard memory.
- * 'Emulated memory' access addresses should be checked for sanity.
- * 'Normal memory' accesses may fault, and the caller must arrange to
- * detect and handle reentrancy into the emulator via recursive faults.
- * Accesses may be unaligned and may cross page boundaries.
- * 2. If the access fails (cannot emulate, or a standard access faults) then
- * it is up to the memop to propagate the fault to the guest VM via
- * some out-of-band mechanism, unknown to the emulator. The memop signals
- * failure by returning X86EMUL_PROPAGATE_FAULT to the emulator, which will
- * then immediately bail.
- * 3. Valid access sizes are 1, 2, 4 and 8 bytes. On x86/32 systems only
- * cmpxchg8b_emulated need support 8-byte accesses.
- * 4. The emulator cannot handle 64-bit mode emulation on an x86/32 system.
- */
-/* Access completed successfully: continue emulation as normal. */
-#define X86EMUL_CONTINUE 0
-/* Access is unhandleable: bail from emulation and return error to caller. */
-#define X86EMUL_UNHANDLEABLE 1
-/* Terminate emulation but return success to the caller. */
-#define X86EMUL_PROPAGATE_FAULT 2 /* propagate a generated fault to guest */
-#define X86EMUL_RETRY_INSTR 3 /* retry the instruction for some reason */
-#define X86EMUL_CMPXCHG_FAILED 4 /* cmpxchg did not see expected value */
-#define X86EMUL_IO_NEEDED 5 /* IO is needed to complete emulation */
-
-struct x86_emulate_ops {
- /*
- * read_std: Read bytes of standard (non-emulated/special) memory.
- * Used for descriptor reading.
- * @addr: [IN ] Linear address from which to read.
- * @val: [OUT] Value read from memory, zero-extended to 'u_long'.
- * @bytes: [IN ] Number of bytes to read from memory.
- */
- int (*read_std)(unsigned long addr, void *val,
- unsigned int bytes, struct kvm_vcpu *vcpu,
- struct x86_exception *fault);
-
- /*
- * write_std: Write bytes of standard (non-emulated/special) memory.
- * Used for descriptor writing.
- * @addr: [IN ] Linear address to which to write.
- * @val: [OUT] Value write to memory, zero-extended to 'u_long'.
- * @bytes: [IN ] Number of bytes to write to memory.
- */
- int (*write_std)(unsigned long addr, void *val,
- unsigned int bytes, struct kvm_vcpu *vcpu,
- struct x86_exception *fault);
- /*
- * fetch: Read bytes of standard (non-emulated/special) memory.
- * Used for instruction fetch.
- * @addr: [IN ] Linear address from which to read.
- * @val: [OUT] Value read from memory, zero-extended to 'u_long'.
- * @bytes: [IN ] Number of bytes to read from memory.
- */
- int (*fetch)(unsigned long addr, void *val,
- unsigned int bytes, struct kvm_vcpu *vcpu,
- struct x86_exception *fault);
-
- /*
- * read_emulated: Read bytes from emulated/special memory area.
- * @addr: [IN ] Linear address from which to read.
- * @val: [OUT] Value read from memory, zero-extended to 'u_long'.
- * @bytes: [IN ] Number of bytes to read from memory.
- */
- int (*read_emulated)(unsigned long addr,
- void *val,
- unsigned int bytes,
- struct x86_exception *fault,
- struct kvm_vcpu *vcpu);
-
- /*
- * write_emulated: Write bytes to emulated/special memory area.
- * @addr: [IN ] Linear address to which to write.
- * @val: [IN ] Value to write to memory (low-order bytes used as
- * required).
- * @bytes: [IN ] Number of bytes to write to memory.
- */
- int (*write_emulated)(unsigned long addr,
- const void *val,
- unsigned int bytes,
- struct x86_exception *fault,
- struct kvm_vcpu *vcpu);
-
- /*
- * cmpxchg_emulated: Emulate an atomic (LOCKed) CMPXCHG operation on an
- * emulated/special memory area.
- * @addr: [IN ] Linear address to access.
- * @old: [IN ] Value expected to be current at @addr.
- * @new: [IN ] Value to write to @addr.
- * @bytes: [IN ] Number of bytes to access using CMPXCHG.
- */
- int (*cmpxchg_emulated)(unsigned long addr,
- const void *old,
- const void *new,
- unsigned int bytes,
- struct x86_exception *fault,
- struct kvm_vcpu *vcpu);
-
- int (*pio_in_emulated)(int size, unsigned short port, void *val,
- unsigned int count, struct kvm_vcpu *vcpu);
-
- int (*pio_out_emulated)(int size, unsigned short port, const void *val,
- unsigned int count, struct kvm_vcpu *vcpu);
-
- bool (*get_cached_descriptor)(struct desc_struct *desc, u32 *base3,
- int seg, struct kvm_vcpu *vcpu);
- void (*set_cached_descriptor)(struct desc_struct *desc, u32 base3,
- int seg, struct kvm_vcpu *vcpu);
- u16 (*get_segment_selector)(int seg, struct kvm_vcpu *vcpu);
- void (*set_segment_selector)(u16 sel, int seg, struct kvm_vcpu *vcpu);
- unsigned long (*get_cached_segment_base)(int seg, struct kvm_vcpu *vcpu);
- void (*get_gdt)(struct desc_ptr *dt, struct kvm_vcpu *vcpu);
- void (*get_idt)(struct desc_ptr *dt, struct kvm_vcpu *vcpu);
- ulong (*get_cr)(int cr, struct kvm_vcpu *vcpu);
- int (*set_cr)(int cr, ulong val, struct kvm_vcpu *vcpu);
- int (*cpl)(struct kvm_vcpu *vcpu);
- int (*get_dr)(int dr, unsigned long *dest, struct kvm_vcpu *vcpu);
- int (*set_dr)(int dr, unsigned long value, struct kvm_vcpu *vcpu);
- int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
- int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
-};
-
-/* Type, address-of, and value of an instruction's operand. */
-struct operand {
- enum { OP_REG, OP_MEM, OP_IMM, OP_NONE } type;
- unsigned int bytes;
- union {
- unsigned long orig_val;
- u64 orig_val64;
- };
- union {
- unsigned long *reg;
- struct segmented_address {
- ulong ea;
- unsigned seg;
- } mem;
- } addr;
- union {
- unsigned long val;
- u64 val64;
- char valptr[sizeof(unsigned long) + 2];
- };
-};
-
-struct fetch_cache {
- u8 data[15];
- unsigned long start;
- unsigned long end;
-};
-
-struct read_cache {
- u8 data[1024];
- unsigned long pos;
- unsigned long end;
-};
-
-struct decode_cache {
- u8 twobyte;
- u8 b;
- u8 lock_prefix;
- u8 rep_prefix;
- u8 op_bytes;
- u8 ad_bytes;
- u8 rex_prefix;
- struct operand src;
- struct operand src2;
- struct operand dst;
- bool has_seg_override;
- u8 seg_override;
- unsigned int d;
- int (*execute)(struct x86_emulate_ctxt *ctxt);
- unsigned long regs[NR_VCPU_REGS];
- unsigned long eip;
- /* modrm */
- u8 modrm;
- u8 modrm_mod;
- u8 modrm_reg;
- u8 modrm_rm;
- u8 modrm_seg;
- bool rip_relative;
- struct fetch_cache fetch;
- struct read_cache io_read;
- struct read_cache mem_read;
-};
-
-struct x86_emulate_ctxt {
- struct x86_emulate_ops *ops;
-
- /* Register state before/after emulation. */
- struct kvm_vcpu *vcpu;
-
- unsigned long eflags;
- unsigned long eip; /* eip before instruction emulation */
- /* Emulated execution mode, represented by an X86EMUL_MODE value. */
- int mode;
- u32 cs_base;
-
- /* interruptibility state, as a result of execution of STI or MOV SS */
- int interruptibility;
-
- bool perm_ok; /* do not check permissions if true */
- bool only_vendor_specific_insn;
-
- bool have_exception;
- struct x86_exception exception;
-
- /* decode cache */
- struct decode_cache decode;
-};
-
-/* Repeat String Operation Prefix */
-#define REPE_PREFIX 1
-#define REPNE_PREFIX 2
-
-/* Execution mode, passed to the emulator. */
-#define X86EMUL_MODE_REAL 0 /* Real mode. */
-#define X86EMUL_MODE_VM86 1 /* Virtual 8086 mode. */
-#define X86EMUL_MODE_PROT16 2 /* 16-bit protected mode. */
-#define X86EMUL_MODE_PROT32 4 /* 32-bit protected mode. */
-#define X86EMUL_MODE_PROT64 8 /* 64-bit (long) mode. */
-
-/* Host execution mode. */
-#if defined(CONFIG_X86_32)
-#define X86EMUL_MODE_HOST X86EMUL_MODE_PROT32
-#elif defined(CONFIG_X86_64)
-#define X86EMUL_MODE_HOST X86EMUL_MODE_PROT64
-#endif
-
-int x86_decode_insn(struct x86_emulate_ctxt *ctxt, void *insn, int insn_len);
-#define EMULATION_FAILED -1
-#define EMULATION_OK 0
-#define EMULATION_RESTART 1
-int x86_emulate_insn(struct x86_emulate_ctxt *ctxt);
-int emulator_task_switch(struct x86_emulate_ctxt *ctxt,
- u16 tss_selector, int reason,
- bool has_error_code, u32 error_code);
-int emulate_int_real(struct x86_emulate_ctxt *ctxt,
- struct x86_emulate_ops *ops, int irq);
-#endif /* _ASM_X86_KVM_X86_EMULATE_H */
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index c8af0991fdf0..fb9d1f2d6136 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1,11 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Kernel-based Virtual Machine driver for Linux
*
* This header defines architecture specific interfaces, x86 version
- *
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
- *
*/
#ifndef _ASM_X86_KVM_HOST_H
@@ -16,108 +13,178 @@
#include <linux/mmu_notifier.h>
#include <linux/tracepoint.h>
#include <linux/cpumask.h>
+#include <linux/irq_work.h>
+#include <linux/irq.h>
+#include <linux/workqueue.h>
#include <linux/kvm.h>
#include <linux/kvm_para.h>
#include <linux/kvm_types.h>
-
+#include <linux/perf_event.h>
+#include <linux/pvclock_gtod.h>
+#include <linux/clocksource.h>
+#include <linux/irqbypass.h>
+#include <linux/hyperv.h>
+#include <linux/kfifo.h>
+
+#include <asm/apic.h>
#include <asm/pvclock-abi.h>
#include <asm/desc.h>
#include <asm/mtrr.h>
#include <asm/msr-index.h>
+#include <asm/asm.h>
+#include <asm/kvm_page_track.h>
+#include <asm/kvm_vcpu_regs.h>
+#include <asm/hyperv-tlfs.h>
+
+#define __KVM_HAVE_ARCH_VCPU_DEBUGFS
-#define KVM_MAX_VCPUS 64
-#define KVM_MEMORY_SLOTS 32
-/* memory slots that does not exposed to userspace */
-#define KVM_PRIVATE_MEM_SLOTS 4
+#define KVM_MAX_VCPUS 1024
+
+/*
+ * In x86, the VCPU ID corresponds to the APIC ID, and APIC IDs
+ * might be larger than the actual number of VCPUs because the
+ * APIC ID encodes CPU topology information.
+ *
+ * In the worst case, we'll need less than one extra bit for the
+ * Core ID, and less than one extra bit for the Package (Die) ID,
+ * so ratio of 4 should be enough.
+ */
+#define KVM_VCPU_ID_RATIO 4
+#define KVM_MAX_VCPU_IDS (KVM_MAX_VCPUS * KVM_VCPU_ID_RATIO)
+
+/* memory slots that are not exposed to userspace */
+#define KVM_INTERNAL_MEM_SLOTS 3
+
+#define KVM_HALT_POLL_NS_DEFAULT 200000
+
+#define KVM_IRQCHIP_NUM_PINS KVM_IOAPIC_NUM_PINS
+
+#define KVM_DIRTY_LOG_MANUAL_CAPS (KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE | \
+ KVM_DIRTY_LOG_INITIALLY_SET)
+
+#define KVM_BUS_LOCK_DETECTION_VALID_MODE (KVM_BUS_LOCK_DETECTION_OFF | \
+ KVM_BUS_LOCK_DETECTION_EXIT)
+
+#define KVM_X86_NOTIFY_VMEXIT_VALID_BITS (KVM_X86_NOTIFY_VMEXIT_ENABLED | \
+ KVM_X86_NOTIFY_VMEXIT_USER)
+
+/* x86-specific vcpu->requests bit members */
+#define KVM_REQ_MIGRATE_TIMER KVM_ARCH_REQ(0)
+#define KVM_REQ_REPORT_TPR_ACCESS KVM_ARCH_REQ(1)
+#define KVM_REQ_TRIPLE_FAULT KVM_ARCH_REQ(2)
+#define KVM_REQ_MMU_SYNC KVM_ARCH_REQ(3)
+#define KVM_REQ_CLOCK_UPDATE KVM_ARCH_REQ(4)
+#define KVM_REQ_LOAD_MMU_PGD KVM_ARCH_REQ(5)
+#define KVM_REQ_EVENT KVM_ARCH_REQ(6)
+#define KVM_REQ_APF_HALT KVM_ARCH_REQ(7)
+#define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(8)
+#define KVM_REQ_NMI KVM_ARCH_REQ(9)
+#define KVM_REQ_PMU KVM_ARCH_REQ(10)
+#define KVM_REQ_PMI KVM_ARCH_REQ(11)
+#ifdef CONFIG_KVM_SMM
+#define KVM_REQ_SMI KVM_ARCH_REQ(12)
+#endif
+#define KVM_REQ_MASTERCLOCK_UPDATE KVM_ARCH_REQ(13)
+#define KVM_REQ_MCLOCK_INPROGRESS \
+ KVM_ARCH_REQ_FLAGS(14, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_SCAN_IOAPIC \
+ KVM_ARCH_REQ_FLAGS(15, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_GLOBAL_CLOCK_UPDATE KVM_ARCH_REQ(16)
+#define KVM_REQ_APIC_PAGE_RELOAD \
+ KVM_ARCH_REQ_FLAGS(17, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_HV_CRASH KVM_ARCH_REQ(18)
+#define KVM_REQ_IOAPIC_EOI_EXIT KVM_ARCH_REQ(19)
+#define KVM_REQ_HV_RESET KVM_ARCH_REQ(20)
+#define KVM_REQ_HV_EXIT KVM_ARCH_REQ(21)
+#define KVM_REQ_HV_STIMER KVM_ARCH_REQ(22)
+#define KVM_REQ_LOAD_EOI_EXITMAP KVM_ARCH_REQ(23)
+#define KVM_REQ_GET_NESTED_STATE_PAGES KVM_ARCH_REQ(24)
+#define KVM_REQ_APICV_UPDATE \
+ KVM_ARCH_REQ_FLAGS(25, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_TLB_FLUSH_CURRENT KVM_ARCH_REQ(26)
+#define KVM_REQ_TLB_FLUSH_GUEST \
+ KVM_ARCH_REQ_FLAGS(27, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_APF_READY KVM_ARCH_REQ(28)
+#define KVM_REQ_MSR_FILTER_CHANGED KVM_ARCH_REQ(29)
+#define KVM_REQ_UPDATE_CPU_DIRTY_LOGGING \
+ KVM_ARCH_REQ_FLAGS(30, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_MMU_FREE_OBSOLETE_ROOTS \
+ KVM_ARCH_REQ_FLAGS(31, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+#define KVM_REQ_HV_TLB_FLUSH \
+ KVM_ARCH_REQ_FLAGS(32, KVM_REQUEST_WAIT | KVM_REQUEST_NO_WAKEUP)
+
+#define CR0_RESERVED_BITS \
+ (~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
+ | X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
+ | X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
+
+#define CR4_RESERVED_BITS \
+ (~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
+ | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
+ | X86_CR4_PGE | X86_CR4_PCE | X86_CR4_OSFXSR | X86_CR4_PCIDE \
+ | X86_CR4_OSXSAVE | X86_CR4_SMEP | X86_CR4_FSGSBASE \
+ | X86_CR4_OSXMMEXCPT | X86_CR4_LA57 | X86_CR4_VMXE \
+ | X86_CR4_SMAP | X86_CR4_PKE | X86_CR4_UMIP))
+
+#define CR8_RESERVED_BITS (~(unsigned long)X86_CR8_TPR)
-#define KVM_PIO_PAGE_OFFSET 1
-#define KVM_COALESCED_MMIO_PAGE_OFFSET 2
-#define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1)
-#define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD))
-#define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS | \
- 0xFFFFFF0000000000ULL)
#define INVALID_PAGE (~(hpa_t)0)
#define VALID_PAGE(x) ((x) != INVALID_PAGE)
-#define UNMAPPED_GVA (~(gpa_t)0)
-
/* KVM Hugepage definitions for x86 */
-#define KVM_NR_PAGE_SIZES 3
+#define KVM_MAX_HUGEPAGE_LEVEL PG_LEVEL_1G
+#define KVM_NR_PAGE_SIZES (KVM_MAX_HUGEPAGE_LEVEL - PG_LEVEL_4K + 1)
#define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 9)
#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
#define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
#define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
#define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
-#define DE_VECTOR 0
-#define DB_VECTOR 1
-#define BP_VECTOR 3
-#define OF_VECTOR 4
-#define BR_VECTOR 5
-#define UD_VECTOR 6
-#define NM_VECTOR 7
-#define DF_VECTOR 8
-#define TS_VECTOR 10
-#define NP_VECTOR 11
-#define SS_VECTOR 12
-#define GP_VECTOR 13
-#define PF_VECTOR 14
-#define MF_VECTOR 16
-#define MC_VECTOR 18
-
-#define SELECTOR_TI_MASK (1 << 2)
-#define SELECTOR_RPL_MASK 0x03
-
-#define IOPL_SHIFT 12
-
-#define KVM_PERMILLE_MMU_PAGES 20
-#define KVM_MIN_ALLOC_MMU_PAGES 64
-#define KVM_MMU_HASH_SHIFT 10
+#define KVM_MEMSLOT_PAGES_TO_MMU_PAGES_RATIO 50
+#define KVM_MIN_ALLOC_MMU_PAGES 64UL
+#define KVM_MMU_HASH_SHIFT 12
#define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT)
#define KVM_MIN_FREE_MMU_PAGES 5
#define KVM_REFILL_PAGES 25
-#define KVM_MAX_CPUID_ENTRIES 80
+#define KVM_MAX_CPUID_ENTRIES 256
#define KVM_NR_FIXED_MTRR_REGION 88
#define KVM_NR_VAR_MTRR 8
#define ASYNC_PF_PER_VCPU 64
-extern raw_spinlock_t kvm_lock;
-extern struct list_head vm_list;
-
-struct kvm_vcpu;
-struct kvm;
-struct kvm_async_pf;
-
enum kvm_reg {
- VCPU_REGS_RAX = 0,
- VCPU_REGS_RCX = 1,
- VCPU_REGS_RDX = 2,
- VCPU_REGS_RBX = 3,
- VCPU_REGS_RSP = 4,
- VCPU_REGS_RBP = 5,
- VCPU_REGS_RSI = 6,
- VCPU_REGS_RDI = 7,
+ VCPU_REGS_RAX = __VCPU_REGS_RAX,
+ VCPU_REGS_RCX = __VCPU_REGS_RCX,
+ VCPU_REGS_RDX = __VCPU_REGS_RDX,
+ VCPU_REGS_RBX = __VCPU_REGS_RBX,
+ VCPU_REGS_RSP = __VCPU_REGS_RSP,
+ VCPU_REGS_RBP = __VCPU_REGS_RBP,
+ VCPU_REGS_RSI = __VCPU_REGS_RSI,
+ VCPU_REGS_RDI = __VCPU_REGS_RDI,
#ifdef CONFIG_X86_64
- VCPU_REGS_R8 = 8,
- VCPU_REGS_R9 = 9,
- VCPU_REGS_R10 = 10,
- VCPU_REGS_R11 = 11,
- VCPU_REGS_R12 = 12,
- VCPU_REGS_R13 = 13,
- VCPU_REGS_R14 = 14,
- VCPU_REGS_R15 = 15,
+ VCPU_REGS_R8 = __VCPU_REGS_R8,
+ VCPU_REGS_R9 = __VCPU_REGS_R9,
+ VCPU_REGS_R10 = __VCPU_REGS_R10,
+ VCPU_REGS_R11 = __VCPU_REGS_R11,
+ VCPU_REGS_R12 = __VCPU_REGS_R12,
+ VCPU_REGS_R13 = __VCPU_REGS_R13,
+ VCPU_REGS_R14 = __VCPU_REGS_R14,
+ VCPU_REGS_R15 = __VCPU_REGS_R15,
#endif
VCPU_REGS_RIP,
- NR_VCPU_REGS
-};
+ NR_VCPU_REGS,
-enum kvm_reg_ex {
VCPU_EXREG_PDPTR = NR_VCPU_REGS,
+ VCPU_EXREG_CR0,
VCPU_EXREG_CR3,
+ VCPU_EXREG_CR4,
+ VCPU_EXREG_RFLAGS,
+ VCPU_EXREG_SEGMENTS,
+ VCPU_EXREG_EXIT_INFO_1,
+ VCPU_EXREG_EXIT_INFO_2,
};
enum {
@@ -131,147 +198,521 @@ enum {
VCPU_SREG_LDTR,
};
-#include <asm/kvm_emulate.h>
+enum exit_fastpath_completion {
+ EXIT_FASTPATH_NONE,
+ EXIT_FASTPATH_REENTER_GUEST,
+ EXIT_FASTPATH_EXIT_HANDLED,
+};
+typedef enum exit_fastpath_completion fastpath_t;
-#define KVM_NR_MEM_OBJS 40
+struct x86_emulate_ctxt;
+struct x86_exception;
+union kvm_smram;
+enum x86_intercept;
+enum x86_intercept_stage;
#define KVM_NR_DB_REGS 4
+#define DR6_BUS_LOCK (1 << 11)
#define DR6_BD (1 << 13)
#define DR6_BS (1 << 14)
-#define DR6_FIXED_1 0xffff0ff0
-#define DR6_VOLATILE 0x0000e00f
+#define DR6_BT (1 << 15)
+#define DR6_RTM (1 << 16)
+/*
+ * DR6_ACTIVE_LOW combines fixed-1 and active-low bits.
+ * We can regard all the bits in DR6_FIXED_1 as active_low bits;
+ * they will never be 0 for now, but when they are defined
+ * in the future it will require no code change.
+ *
+ * DR6_ACTIVE_LOW is also used as the init/reset value for DR6.
+ */
+#define DR6_ACTIVE_LOW 0xffff0ff0
+#define DR6_VOLATILE 0x0001e80f
+#define DR6_FIXED_1 (DR6_ACTIVE_LOW & ~DR6_VOLATILE)
#define DR7_BP_EN_MASK 0x000000ff
#define DR7_GE (1 << 9)
#define DR7_GD (1 << 13)
#define DR7_FIXED_1 0x00000400
-#define DR7_VOLATILE 0xffff23ff
-
+#define DR7_VOLATILE 0xffff2bff
+
+#define KVM_GUESTDBG_VALID_MASK \
+ (KVM_GUESTDBG_ENABLE | \
+ KVM_GUESTDBG_SINGLESTEP | \
+ KVM_GUESTDBG_USE_HW_BP | \
+ KVM_GUESTDBG_USE_SW_BP | \
+ KVM_GUESTDBG_INJECT_BP | \
+ KVM_GUESTDBG_INJECT_DB | \
+ KVM_GUESTDBG_BLOCKIRQ)
+
+
+#define PFERR_PRESENT_BIT 0
+#define PFERR_WRITE_BIT 1
+#define PFERR_USER_BIT 2
+#define PFERR_RSVD_BIT 3
+#define PFERR_FETCH_BIT 4
+#define PFERR_PK_BIT 5
+#define PFERR_SGX_BIT 15
+#define PFERR_GUEST_FINAL_BIT 32
+#define PFERR_GUEST_PAGE_BIT 33
+#define PFERR_IMPLICIT_ACCESS_BIT 48
+
+#define PFERR_PRESENT_MASK BIT(PFERR_PRESENT_BIT)
+#define PFERR_WRITE_MASK BIT(PFERR_WRITE_BIT)
+#define PFERR_USER_MASK BIT(PFERR_USER_BIT)
+#define PFERR_RSVD_MASK BIT(PFERR_RSVD_BIT)
+#define PFERR_FETCH_MASK BIT(PFERR_FETCH_BIT)
+#define PFERR_PK_MASK BIT(PFERR_PK_BIT)
+#define PFERR_SGX_MASK BIT(PFERR_SGX_BIT)
+#define PFERR_GUEST_FINAL_MASK BIT_ULL(PFERR_GUEST_FINAL_BIT)
+#define PFERR_GUEST_PAGE_MASK BIT_ULL(PFERR_GUEST_PAGE_BIT)
+#define PFERR_IMPLICIT_ACCESS BIT_ULL(PFERR_IMPLICIT_ACCESS_BIT)
+
+#define PFERR_NESTED_GUEST_PAGE (PFERR_GUEST_PAGE_MASK | \
+ PFERR_WRITE_MASK | \
+ PFERR_PRESENT_MASK)
+
+/* apic attention bits */
+#define KVM_APIC_CHECK_VAPIC 0
/*
- * We don't want allocation failures within the mmu code, so we preallocate
- * enough memory for a single page fault in a cache.
+ * The following bit is set with PV-EOI, unset on EOI.
+ * We detect PV-EOI changes by guest by comparing
+ * this bit with PV-EOI in guest memory.
+ * See the implementation in apic_update_pv_eoi.
*/
-struct kvm_mmu_memory_cache {
- int nobjs;
- void *objects[KVM_NR_MEM_OBJS];
-};
-
-#define NR_PTE_CHAIN_ENTRIES 5
+#define KVM_APIC_PV_EOI_PENDING 1
-struct kvm_pte_chain {
- u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES];
- struct hlist_node link;
-};
+struct kvm_kernel_irq_routing_entry;
/*
- * kvm_mmu_page_role, below, is defined as:
+ * kvm_mmu_page_role tracks the properties of a shadow page (where shadow page
+ * also includes TDP pages) to determine whether or not a page can be used in
+ * the given MMU context. This is a subset of the overall kvm_cpu_role to
+ * minimize the size of kvm_memory_slot.arch.gfn_track, i.e. allows allocating
+ * 2 bytes per gfn instead of 4 bytes per gfn.
+ *
+ * Upper-level shadow pages having gptes are tracked for write-protection via
+ * gfn_track. As above, gfn_track is a 16 bit counter, so KVM must not create
+ * more than 2^16-1 upper-level shadow pages at a single gfn, otherwise
+ * gfn_track will overflow and explosions will ensure.
+ *
+ * A unique shadow page (SP) for a gfn is created if and only if an existing SP
+ * cannot be reused. The ability to reuse a SP is tracked by its role, which
+ * incorporates various mode bits and properties of the SP. Roughly speaking,
+ * the number of unique SPs that can theoretically be created is 2^n, where n
+ * is the number of bits that are used to compute the role.
+ *
+ * But, even though there are 19 bits in the mask below, not all combinations
+ * of modes and flags are possible:
+ *
+ * - invalid shadow pages are not accounted, so the bits are effectively 18
+ *
+ * - quadrant will only be used if has_4_byte_gpte=1 (non-PAE paging);
+ * execonly and ad_disabled are only used for nested EPT which has
+ * has_4_byte_gpte=0. Therefore, 2 bits are always unused.
+ *
+ * - the 4 bits of level are effectively limited to the values 2/3/4/5,
+ * as 4k SPs are not tracked (allowed to go unsync). In addition non-PAE
+ * paging has exactly one upper level, making level completely redundant
+ * when has_4_byte_gpte=1.
*
- * bits 0:3 - total guest paging levels (2-4, or zero for real mode)
- * bits 4:7 - page table level for this shadow (1-4)
- * bits 8:9 - page table quadrant for 2-level guests
- * bit 16 - direct mapping of virtual to physical mapping at gfn
- * used for real mode and two-dimensional paging
- * bits 17:19 - common access permissions for all ptes in this shadow page
+ * - on top of this, smep_andnot_wp and smap_andnot_wp are only set if
+ * cr0_wp=0, therefore these three bits only give rise to 5 possibilities.
+ *
+ * Therefore, the maximum number of possible upper-level shadow pages for a
+ * single gfn is a bit less than 2^13.
*/
union kvm_mmu_page_role {
- unsigned word;
+ u32 word;
struct {
unsigned level:4;
- unsigned cr4_pae:1;
+ unsigned has_4_byte_gpte:1;
unsigned quadrant:2;
- unsigned pad_for_nice_hex_output:6;
unsigned direct:1;
unsigned access:3;
unsigned invalid:1;
- unsigned nxe:1;
+ unsigned efer_nx:1;
unsigned cr0_wp:1;
+ unsigned smep_andnot_wp:1;
+ unsigned smap_andnot_wp:1;
+ unsigned ad_disabled:1;
+ unsigned guest_mode:1;
+ unsigned passthrough:1;
+ unsigned :5;
+
+ /*
+ * This is left at the top of the word so that
+ * kvm_memslots_for_spte_role can extract it with a
+ * simple shift. While there is room, give it a whole
+ * byte so it is also faster to load it from memory.
+ */
+ unsigned smm:8;
};
};
-struct kvm_mmu_page {
- struct list_head link;
- struct hlist_node hash_link;
-
- /*
- * The following two entries are used to key the shadow page in the
- * hash table.
- */
- gfn_t gfn;
- union kvm_mmu_page_role role;
+/*
+ * kvm_mmu_extended_role complements kvm_mmu_page_role, tracking properties
+ * relevant to the current MMU configuration. When loading CR0, CR4, or EFER,
+ * including on nested transitions, if nothing in the full role changes then
+ * MMU re-configuration can be skipped. @valid bit is set on first usage so we
+ * don't treat all-zero structure as valid data.
+ *
+ * The properties that are tracked in the extended role but not the page role
+ * are for things that either (a) do not affect the validity of the shadow page
+ * or (b) are indirectly reflected in the shadow page's role. For example,
+ * CR4.PKE only affects permission checks for software walks of the guest page
+ * tables (because KVM doesn't support Protection Keys with shadow paging), and
+ * CR0.PG, CR4.PAE, and CR4.PSE are indirectly reflected in role.level.
+ *
+ * Note, SMEP and SMAP are not redundant with sm*p_andnot_wp in the page role.
+ * If CR0.WP=1, KVM can reuse shadow pages for the guest regardless of SMEP and
+ * SMAP, but the MMU's permission checks for software walks need to be SMEP and
+ * SMAP aware regardless of CR0.WP.
+ */
+union kvm_mmu_extended_role {
+ u32 word;
+ struct {
+ unsigned int valid:1;
+ unsigned int execonly:1;
+ unsigned int cr4_pse:1;
+ unsigned int cr4_pke:1;
+ unsigned int cr4_smap:1;
+ unsigned int cr4_smep:1;
+ unsigned int cr4_la57:1;
+ unsigned int efer_lma:1;
+ };
+};
- u64 *spt;
- /* hold the gfn of each spte inside spt */
- gfn_t *gfns;
- /*
- * One bit set per slot which has memory
- * in this shadow page.
- */
- DECLARE_BITMAP(slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS);
- bool multimapped; /* More than one parent_pte? */
- bool unsync;
- int root_count; /* Currently serving as active root */
- unsigned int unsync_children;
- union {
- u64 *parent_pte; /* !multimapped */
- struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */
+union kvm_cpu_role {
+ u64 as_u64;
+ struct {
+ union kvm_mmu_page_role base;
+ union kvm_mmu_extended_role ext;
};
- DECLARE_BITMAP(unsync_child_bitmap, 512);
};
-struct kvm_pv_mmu_op_buffer {
- void *ptr;
- unsigned len;
- unsigned processed;
- char buf[512] __aligned(sizeof(long));
+struct kvm_rmap_head {
+ unsigned long val;
};
struct kvm_pio_request {
+ unsigned long linear_rip;
unsigned long count;
int in;
int port;
int size;
};
+#define PT64_ROOT_MAX_LEVEL 5
+
+struct rsvd_bits_validate {
+ u64 rsvd_bits_mask[2][PT64_ROOT_MAX_LEVEL];
+ u64 bad_mt_xwr;
+};
+
+struct kvm_mmu_root_info {
+ gpa_t pgd;
+ hpa_t hpa;
+};
+
+#define KVM_MMU_ROOT_INFO_INVALID \
+ ((struct kvm_mmu_root_info) { .pgd = INVALID_PAGE, .hpa = INVALID_PAGE })
+
+#define KVM_MMU_NUM_PREV_ROOTS 3
+
+#define KVM_MMU_ROOT_CURRENT BIT(0)
+#define KVM_MMU_ROOT_PREVIOUS(i) BIT(1+i)
+#define KVM_MMU_ROOTS_ALL (BIT(1 + KVM_MMU_NUM_PREV_ROOTS) - 1)
+
+#define KVM_HAVE_MMU_RWLOCK
+
+struct kvm_mmu_page;
+struct kvm_page_fault;
+
/*
- * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
- * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
- * mode.
+ * x86 supports 4 paging modes (5-level 64-bit, 4-level 64-bit, 3-level 32-bit,
+ * and 2-level 32-bit). The kvm_mmu structure abstracts the details of the
+ * current mmu mode.
*/
struct kvm_mmu {
- void (*new_cr3)(struct kvm_vcpu *vcpu);
- void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root);
- unsigned long (*get_cr3)(struct kvm_vcpu *vcpu);
- int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err,
- bool prefault);
+ unsigned long (*get_guest_pgd)(struct kvm_vcpu *vcpu);
+ u64 (*get_pdptr)(struct kvm_vcpu *vcpu, int index);
+ int (*page_fault)(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault);
void (*inject_page_fault)(struct kvm_vcpu *vcpu,
struct x86_exception *fault);
- void (*free)(struct kvm_vcpu *vcpu);
- gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access,
+ gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
+ gpa_t gva_or_gpa, u64 access,
struct x86_exception *exception);
- gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access);
- void (*prefetch_page)(struct kvm_vcpu *vcpu,
- struct kvm_mmu_page *page);
- int (*sync_page)(struct kvm_vcpu *vcpu,
- struct kvm_mmu_page *sp);
- void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva);
- void (*update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
- u64 *spte, const void *pte, unsigned long mmu_seq);
- hpa_t root_hpa;
- int root_level;
- int shadow_root_level;
- union kvm_mmu_page_role base_role;
- bool direct_map;
+ int (*sync_spte)(struct kvm_vcpu *vcpu,
+ struct kvm_mmu_page *sp, int i);
+ struct kvm_mmu_root_info root;
+ union kvm_cpu_role cpu_role;
+ union kvm_mmu_page_role root_role;
+
+ /*
+ * The pkru_mask indicates if protection key checks are needed. It
+ * consists of 16 domains indexed by page fault error code bits [4:1],
+ * with PFEC.RSVD replaced by ACC_USER_MASK from the page tables.
+ * Each domain has 2 bits which are ANDed with AD and WD from PKRU.
+ */
+ u32 pkru_mask;
+
+ struct kvm_mmu_root_info prev_roots[KVM_MMU_NUM_PREV_ROOTS];
+
+ /*
+ * Bitmap; bit set = permission fault
+ * Byte index: page fault error code [4:1]
+ * Bit index: pte permissions in ACC_* format
+ */
+ u8 permissions[16];
u64 *pae_root;
- u64 *lm_root;
- u64 rsvd_bits_mask[2][4];
+ u64 *pml4_root;
+ u64 *pml5_root;
+
+ /*
+ * check zero bits on shadow page table entries, these
+ * bits include not only hardware reserved bits but also
+ * the bits spte never used.
+ */
+ struct rsvd_bits_validate shadow_zero_check;
- bool nx;
+ struct rsvd_bits_validate guest_rsvd_check;
u64 pdptrs[4]; /* pae */
};
+enum pmc_type {
+ KVM_PMC_GP = 0,
+ KVM_PMC_FIXED,
+};
+
+struct kvm_pmc {
+ enum pmc_type type;
+ u8 idx;
+ bool is_paused;
+ bool intr;
+ u64 counter;
+ u64 prev_counter;
+ u64 eventsel;
+ struct perf_event *perf_event;
+ struct kvm_vcpu *vcpu;
+ /*
+ * only for creating or reusing perf_event,
+ * eventsel value for general purpose counters,
+ * ctrl value for fixed counters.
+ */
+ u64 current_config;
+};
+
+/* More counters may conflict with other existing Architectural MSRs */
+#define KVM_INTEL_PMC_MAX_GENERIC 8
+#define MSR_ARCH_PERFMON_PERFCTR_MAX (MSR_ARCH_PERFMON_PERFCTR0 + KVM_INTEL_PMC_MAX_GENERIC - 1)
+#define MSR_ARCH_PERFMON_EVENTSEL_MAX (MSR_ARCH_PERFMON_EVENTSEL0 + KVM_INTEL_PMC_MAX_GENERIC - 1)
+#define KVM_PMC_MAX_FIXED 3
+#define MSR_ARCH_PERFMON_FIXED_CTR_MAX (MSR_ARCH_PERFMON_FIXED_CTR0 + KVM_PMC_MAX_FIXED - 1)
+#define KVM_AMD_PMC_MAX_GENERIC 6
+struct kvm_pmu {
+ u8 version;
+ unsigned nr_arch_gp_counters;
+ unsigned nr_arch_fixed_counters;
+ unsigned available_event_types;
+ u64 fixed_ctr_ctrl;
+ u64 fixed_ctr_ctrl_mask;
+ u64 global_ctrl;
+ u64 global_status;
+ u64 counter_bitmask[2];
+ u64 global_ctrl_mask;
+ u64 global_ovf_ctrl_mask;
+ u64 reserved_bits;
+ u64 raw_event_mask;
+ struct kvm_pmc gp_counters[KVM_INTEL_PMC_MAX_GENERIC];
+ struct kvm_pmc fixed_counters[KVM_PMC_MAX_FIXED];
+ struct irq_work irq_work;
+
+ /*
+ * Overlay the bitmap with a 64-bit atomic so that all bits can be
+ * set in a single access, e.g. to reprogram all counters when the PMU
+ * filter changes.
+ */
+ union {
+ DECLARE_BITMAP(reprogram_pmi, X86_PMC_IDX_MAX);
+ atomic64_t __reprogram_pmi;
+ };
+ DECLARE_BITMAP(all_valid_pmc_idx, X86_PMC_IDX_MAX);
+ DECLARE_BITMAP(pmc_in_use, X86_PMC_IDX_MAX);
+
+ u64 ds_area;
+ u64 pebs_enable;
+ u64 pebs_enable_mask;
+ u64 pebs_data_cfg;
+ u64 pebs_data_cfg_mask;
+
+ /*
+ * If a guest counter is cross-mapped to host counter with different
+ * index, its PEBS capability will be temporarily disabled.
+ *
+ * The user should make sure that this mask is updated
+ * after disabling interrupts and before perf_guest_get_msrs();
+ */
+ u64 host_cross_mapped_mask;
+
+ /*
+ * The gate to release perf_events not marked in
+ * pmc_in_use only once in a vcpu time slice.
+ */
+ bool need_cleanup;
+
+ /*
+ * The total number of programmed perf_events and it helps to avoid
+ * redundant check before cleanup if guest don't use vPMU at all.
+ */
+ u8 event_count;
+};
+
+struct kvm_pmu_ops;
+
+enum {
+ KVM_DEBUGREG_BP_ENABLED = 1,
+ KVM_DEBUGREG_WONT_EXIT = 2,
+};
+
+struct kvm_mtrr_range {
+ u64 base;
+ u64 mask;
+ struct list_head node;
+};
+
+struct kvm_mtrr {
+ struct kvm_mtrr_range var_ranges[KVM_NR_VAR_MTRR];
+ mtrr_type fixed_ranges[KVM_NR_FIXED_MTRR_REGION];
+ u64 deftype;
+
+ struct list_head head;
+};
+
+/* Hyper-V SynIC timer */
+struct kvm_vcpu_hv_stimer {
+ struct hrtimer timer;
+ int index;
+ union hv_stimer_config config;
+ u64 count;
+ u64 exp_time;
+ struct hv_message msg;
+ bool msg_pending;
+};
+
+/* Hyper-V synthetic interrupt controller (SynIC)*/
+struct kvm_vcpu_hv_synic {
+ u64 version;
+ u64 control;
+ u64 msg_page;
+ u64 evt_page;
+ atomic64_t sint[HV_SYNIC_SINT_COUNT];
+ atomic_t sint_to_gsi[HV_SYNIC_SINT_COUNT];
+ DECLARE_BITMAP(auto_eoi_bitmap, 256);
+ DECLARE_BITMAP(vec_bitmap, 256);
+ bool active;
+ bool dont_zero_synic_pages;
+};
+
+/* The maximum number of entries on the TLB flush fifo. */
+#define KVM_HV_TLB_FLUSH_FIFO_SIZE (16)
+/*
+ * Note: the following 'magic' entry is made up by KVM to avoid putting
+ * anything besides GVA on the TLB flush fifo. It is theoretically possible
+ * to observe a request to flush 4095 PFNs starting from 0xfffffffffffff000
+ * which will look identical. KVM's action to 'flush everything' instead of
+ * flushing these particular addresses is, however, fully legitimate as
+ * flushing more than requested is always OK.
+ */
+#define KVM_HV_TLB_FLUSHALL_ENTRY ((u64)-1)
+
+enum hv_tlb_flush_fifos {
+ HV_L1_TLB_FLUSH_FIFO,
+ HV_L2_TLB_FLUSH_FIFO,
+ HV_NR_TLB_FLUSH_FIFOS,
+};
+
+struct kvm_vcpu_hv_tlb_flush_fifo {
+ spinlock_t write_lock;
+ DECLARE_KFIFO(entries, u64, KVM_HV_TLB_FLUSH_FIFO_SIZE);
+};
+
+/* Hyper-V per vcpu emulation context */
+struct kvm_vcpu_hv {
+ struct kvm_vcpu *vcpu;
+ u32 vp_index;
+ u64 hv_vapic;
+ s64 runtime_offset;
+ struct kvm_vcpu_hv_synic synic;
+ struct kvm_hyperv_exit exit;
+ struct kvm_vcpu_hv_stimer stimer[HV_SYNIC_STIMER_COUNT];
+ DECLARE_BITMAP(stimer_pending_bitmap, HV_SYNIC_STIMER_COUNT);
+ bool enforce_cpuid;
+ struct {
+ u32 features_eax; /* HYPERV_CPUID_FEATURES.EAX */
+ u32 features_ebx; /* HYPERV_CPUID_FEATURES.EBX */
+ u32 features_edx; /* HYPERV_CPUID_FEATURES.EDX */
+ u32 enlightenments_eax; /* HYPERV_CPUID_ENLIGHTMENT_INFO.EAX */
+ u32 enlightenments_ebx; /* HYPERV_CPUID_ENLIGHTMENT_INFO.EBX */
+ u32 syndbg_cap_eax; /* HYPERV_CPUID_SYNDBG_PLATFORM_CAPABILITIES.EAX */
+ u32 nested_eax; /* HYPERV_CPUID_NESTED_FEATURES.EAX */
+ u32 nested_ebx; /* HYPERV_CPUID_NESTED_FEATURES.EBX */
+ } cpuid_cache;
+
+ struct kvm_vcpu_hv_tlb_flush_fifo tlb_flush_fifo[HV_NR_TLB_FLUSH_FIFOS];
+
+ /* Preallocated buffer for handling hypercalls passing sparse vCPU set */
+ u64 sparse_banks[HV_MAX_SPARSE_VCPU_BANKS];
+
+ struct hv_vp_assist_page vp_assist_page;
+
+ struct {
+ u64 pa_page_gpa;
+ u64 vm_id;
+ u32 vp_id;
+ } nested;
+};
+
+struct kvm_hypervisor_cpuid {
+ u32 base;
+ u32 limit;
+};
+
+/* Xen HVM per vcpu emulation context */
+struct kvm_vcpu_xen {
+ u64 hypercall_rip;
+ u32 current_runstate;
+ u8 upcall_vector;
+ struct gfn_to_pfn_cache vcpu_info_cache;
+ struct gfn_to_pfn_cache vcpu_time_info_cache;
+ struct gfn_to_pfn_cache runstate_cache;
+ struct gfn_to_pfn_cache runstate2_cache;
+ u64 last_steal;
+ u64 runstate_entry_time;
+ u64 runstate_times[4];
+ unsigned long evtchn_pending_sel;
+ u32 vcpu_id; /* The Xen / ACPI vCPU ID */
+ u32 timer_virq;
+ u64 timer_expires; /* In guest epoch */
+ atomic_t timer_pending;
+ struct hrtimer timer;
+ int poll_evtchn;
+ struct timer_list poll_timer;
+ struct kvm_hypervisor_cpuid cpuid;
+};
+
+struct kvm_queued_exception {
+ bool pending;
+ bool injected;
+ bool has_error_code;
+ u8 vector;
+ u32 error_code;
+ unsigned long payload;
+ bool has_payload;
+};
+
struct kvm_vcpu_arch {
/*
* rip and regs accesses must go through
@@ -287,16 +728,30 @@ struct kvm_vcpu_arch {
unsigned long cr3;
unsigned long cr4;
unsigned long cr4_guest_owned_bits;
+ unsigned long cr4_guest_rsvd_bits;
unsigned long cr8;
+ u32 host_pkru;
+ u32 pkru;
u32 hflags;
u64 efer;
u64 apic_base;
struct kvm_lapic *apic; /* kernel irqchip context */
+ bool load_eoi_exitmap_pending;
+ DECLARE_BITMAP(ioapic_handled_vectors, 256);
+ unsigned long apic_attention;
int32_t apic_arb_prio;
int mp_state;
- int sipi_vector;
u64 ia32_misc_enable_msr;
+ u64 smbase;
+ u64 smi_count;
+ bool at_instruction_boundary;
bool tpr_access_reporting;
+ bool xsaves_enabled;
+ bool xfd_no_write_intercept;
+ u64 ia32_xss;
+ u64 microcode_version;
+ u64 arch_capabilities;
+ u64 perf_capabilities;
/*
* Paging state of the vcpu
@@ -305,13 +760,19 @@ struct kvm_vcpu_arch {
* the paging mode of the l1 guest. This context is always used to
* handle faults.
*/
- struct kvm_mmu mmu;
+ struct kvm_mmu *mmu;
+
+ /* Non-nested MMU for L1 */
+ struct kvm_mmu root_mmu;
+
+ /* L1 MMU when running nested */
+ struct kvm_mmu guest_mmu;
/*
* Paging state of an L2 guest (used for nested npt)
*
* This context will save all necessary information to walk page tables
- * of the an L2 guest. This context is only initialized for page table
+ * of an L2 guest. This context is only initialized for page table
* walking and not for faulting since we never handle l2 page faults on
* the host.
*/
@@ -323,39 +784,43 @@ struct kvm_vcpu_arch {
*/
struct kvm_mmu *walk_mmu;
- /* only needed in kvm_pv_mmu_op() path, but it's hot so
- * put it here to avoid allocation */
- struct kvm_pv_mmu_op_buffer mmu_op_buffer;
-
- struct kvm_mmu_memory_cache mmu_pte_chain_cache;
- struct kvm_mmu_memory_cache mmu_rmap_desc_cache;
- struct kvm_mmu_memory_cache mmu_page_cache;
+ struct kvm_mmu_memory_cache mmu_pte_list_desc_cache;
+ struct kvm_mmu_memory_cache mmu_shadow_page_cache;
+ struct kvm_mmu_memory_cache mmu_shadowed_info_cache;
struct kvm_mmu_memory_cache mmu_page_header_cache;
- gfn_t last_pt_write_gfn;
- int last_pt_write_count;
- u64 *last_pte_updated;
- gfn_t last_pte_gfn;
+ /*
+ * QEMU userspace and the guest each have their own FPU state.
+ * In vcpu_run, we switch between the user and guest FPU contexts.
+ * While running a VCPU, the VCPU thread will have the guest FPU
+ * context.
+ *
+ * Note that while the PKRU state lives inside the fpu registers,
+ * it is switched out separately at VMENTER and VMEXIT time. The
+ * "guest_fpstate" state here contains the guest FPU context, with the
+ * host PRKU bits.
+ */
+ struct fpu_guest guest_fpu;
- struct fpu guest_fpu;
u64 xcr0;
+ u64 guest_supported_xcr0;
- gva_t mmio_fault_cr2;
struct kvm_pio_request pio;
void *pio_data;
+ void *sev_pio_data;
+ unsigned sev_pio_count;
u8 event_exit_inst_len;
- struct kvm_queued_exception {
- bool pending;
- bool has_error_code;
- bool reinject;
- u8 nr;
- u32 error_code;
- } exception;
+ bool exception_from_userspace;
+
+ /* Exceptions to be injected to the guest. */
+ struct kvm_queued_exception exception;
+ /* Exception VM-Exits to be synthesized to L1. */
+ struct kvm_queued_exception exception_vmexit;
struct kvm_queued_interrupt {
- bool pending;
+ bool injected;
bool soft;
u8 nr;
} interrupt;
@@ -363,169 +828,737 @@ struct kvm_vcpu_arch {
int halt_request; /* real mode on Intel only */
int cpuid_nent;
- struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES];
+ struct kvm_cpuid_entry2 *cpuid_entries;
+ struct kvm_hypervisor_cpuid kvm_cpuid;
+
+ u64 reserved_gpa_bits;
+ int maxphyaddr;
+
/* emulate context */
- struct x86_emulate_ctxt emulate_ctxt;
+ struct x86_emulate_ctxt *emulate_ctxt;
+ bool emulate_regs_need_sync_to_vcpu;
+ bool emulate_regs_need_sync_from_vcpu;
+ int (*complete_userspace_io)(struct kvm_vcpu *vcpu);
gpa_t time;
struct pvclock_vcpu_time_info hv_clock;
unsigned int hw_tsc_khz;
- unsigned int time_offset;
- struct page *time_page;
- u64 last_host_tsc;
- u64 last_guest_tsc;
- u64 last_kernel_ns;
- u64 last_tsc_nsec;
- u64 last_tsc_write;
- bool tsc_catchup;
-
- bool nmi_pending;
- bool nmi_injected;
+ struct gfn_to_pfn_cache pv_time;
+ /* set guest stopped flag in pvclock flags field */
+ bool pvclock_set_guest_stopped_request;
- struct mtrr_state_type mtrr_state;
- u32 pat;
+ struct {
+ u8 preempted;
+ u64 msr_val;
+ u64 last_steal;
+ struct gfn_to_hva_cache cache;
+ } st;
- int switch_db_regs;
+ u64 l1_tsc_offset;
+ u64 tsc_offset; /* current tsc offset */
+ u64 last_guest_tsc;
+ u64 last_host_tsc;
+ u64 tsc_offset_adjustment;
+ u64 this_tsc_nsec;
+ u64 this_tsc_write;
+ u64 this_tsc_generation;
+ bool tsc_catchup;
+ bool tsc_always_catchup;
+ s8 virtual_tsc_shift;
+ u32 virtual_tsc_mult;
+ u32 virtual_tsc_khz;
+ s64 ia32_tsc_adjust_msr;
+ u64 msr_ia32_power_ctl;
+ u64 l1_tsc_scaling_ratio;
+ u64 tsc_scaling_ratio; /* current scaling ratio */
+
+ atomic_t nmi_queued; /* unprocessed asynchronous NMIs */
+ /* Number of NMIs pending injection, not including hardware vNMIs. */
+ unsigned int nmi_pending;
+ bool nmi_injected; /* Trying to inject an NMI this entry */
+ bool smi_pending; /* SMI queued after currently running handler */
+ u8 handling_intr_from_guest;
+
+ struct kvm_mtrr mtrr_state;
+ u64 pat;
+
+ unsigned switch_db_regs;
unsigned long db[KVM_NR_DB_REGS];
unsigned long dr6;
unsigned long dr7;
unsigned long eff_db[KVM_NR_DB_REGS];
+ unsigned long guest_debug_dr7;
+ u64 msr_platform_info;
+ u64 msr_misc_features_enables;
u64 mcg_cap;
u64 mcg_status;
u64 mcg_ctl;
+ u64 mcg_ext_ctl;
u64 *mce_banks;
+ u64 *mci_ctl2_banks;
+
+ /* Cache MMIO info */
+ u64 mmio_gva;
+ unsigned mmio_access;
+ gfn_t mmio_gfn;
+ u64 mmio_gen;
+
+ struct kvm_pmu pmu;
/* used for guest single stepping over the given code position */
unsigned long singlestep_rip;
- /* fields used by HYPER-V emulation */
- u64 hv_vapic;
+ bool hyperv_enabled;
+ struct kvm_vcpu_hv *hyperv;
+ struct kvm_vcpu_xen xen;
cpumask_var_t wbinvd_dirty_mask;
+ unsigned long last_retry_eip;
+ unsigned long last_retry_addr;
+
struct {
bool halted;
- gfn_t gfns[roundup_pow_of_two(ASYNC_PF_PER_VCPU)];
+ gfn_t gfns[ASYNC_PF_PER_VCPU];
struct gfn_to_hva_cache data;
- u64 msr_val;
+ u64 msr_en_val; /* MSR_KVM_ASYNC_PF_EN */
+ u64 msr_int_val; /* MSR_KVM_ASYNC_PF_INT */
+ u16 vec;
u32 id;
bool send_user_only;
+ u32 host_apf_flags;
+ bool delivery_as_pf_vmexit;
+ bool pageready_pending;
} apf;
+
+ /* OSVW MSRs (AMD only) */
+ struct {
+ u64 length;
+ u64 status;
+ } osvw;
+
+ struct {
+ u64 msr_val;
+ struct gfn_to_hva_cache data;
+ } pv_eoi;
+
+ u64 msr_kvm_poll_control;
+
+ /* set at EPT violation at this point */
+ unsigned long exit_qualification;
+
+ /* pv related host specific info */
+ struct {
+ bool pv_unhalted;
+ } pv;
+
+ int pending_ioapic_eoi;
+ int pending_external_vector;
+
+ /* be preempted when it's in kernel-mode(cpl=0) */
+ bool preempted_in_kernel;
+
+ /* Flush the L1 Data cache for L1TF mitigation on VMENTER */
+ bool l1tf_flush_l1d;
+
+ /* Host CPU on which VM-entry was most recently attempted */
+ int last_vmentry_cpu;
+
+ /* AMD MSRC001_0015 Hardware Configuration */
+ u64 msr_hwcr;
+
+ /* pv related cpuid info */
+ struct {
+ /*
+ * value of the eax register in the KVM_CPUID_FEATURES CPUID
+ * leaf.
+ */
+ u32 features;
+
+ /*
+ * indicates whether pv emulation should be disabled if features
+ * are not present in the guest's cpuid
+ */
+ bool enforce;
+ } pv_cpuid;
+
+ /* Protected Guests */
+ bool guest_state_protected;
+
+ /*
+ * Set when PDPTS were loaded directly by the userspace without
+ * reading the guest memory
+ */
+ bool pdptrs_from_userspace;
+
+#if IS_ENABLED(CONFIG_HYPERV)
+ hpa_t hv_root_tdp;
+#endif
+};
+
+struct kvm_lpage_info {
+ int disallow_lpage;
+};
+
+struct kvm_arch_memory_slot {
+ struct kvm_rmap_head *rmap[KVM_NR_PAGE_SIZES];
+ struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
+ unsigned short *gfn_track[KVM_PAGE_TRACK_MAX];
+};
+
+/*
+ * Track the mode of the optimized logical map, as the rules for decoding the
+ * destination vary per mode. Enabling the optimized logical map requires all
+ * software-enabled local APIs to be in the same mode, each addressable APIC to
+ * be mapped to only one MDA, and each MDA to map to at most one APIC.
+ */
+enum kvm_apic_logical_mode {
+ /* All local APICs are software disabled. */
+ KVM_APIC_MODE_SW_DISABLED,
+ /* All software enabled local APICs in xAPIC cluster addressing mode. */
+ KVM_APIC_MODE_XAPIC_CLUSTER,
+ /* All software enabled local APICs in xAPIC flat addressing mode. */
+ KVM_APIC_MODE_XAPIC_FLAT,
+ /* All software enabled local APICs in x2APIC mode. */
+ KVM_APIC_MODE_X2APIC,
+ /*
+ * Optimized map disabled, e.g. not all local APICs in the same logical
+ * mode, same logical ID assigned to multiple APICs, etc.
+ */
+ KVM_APIC_MODE_MAP_DISABLED,
+};
+
+struct kvm_apic_map {
+ struct rcu_head rcu;
+ enum kvm_apic_logical_mode logical_mode;
+ u32 max_apic_id;
+ union {
+ struct kvm_lapic *xapic_flat_map[8];
+ struct kvm_lapic *xapic_cluster_map[16][4];
+ };
+ struct kvm_lapic *phys_map[];
+};
+
+/* Hyper-V synthetic debugger (SynDbg)*/
+struct kvm_hv_syndbg {
+ struct {
+ u64 control;
+ u64 status;
+ u64 send_page;
+ u64 recv_page;
+ u64 pending_page;
+ } control;
+ u64 options;
+};
+
+/* Current state of Hyper-V TSC page clocksource */
+enum hv_tsc_page_status {
+ /* TSC page was not set up or disabled */
+ HV_TSC_PAGE_UNSET = 0,
+ /* TSC page MSR was written by the guest, update pending */
+ HV_TSC_PAGE_GUEST_CHANGED,
+ /* TSC page update was triggered from the host side */
+ HV_TSC_PAGE_HOST_CHANGED,
+ /* TSC page was properly set up and is currently active */
+ HV_TSC_PAGE_SET,
+ /* TSC page was set up with an inaccessible GPA */
+ HV_TSC_PAGE_BROKEN,
+};
+
+/* Hyper-V emulation context */
+struct kvm_hv {
+ struct mutex hv_lock;
+ u64 hv_guest_os_id;
+ u64 hv_hypercall;
+ u64 hv_tsc_page;
+ enum hv_tsc_page_status hv_tsc_page_status;
+
+ /* Hyper-v based guest crash (NT kernel bugcheck) parameters */
+ u64 hv_crash_param[HV_X64_MSR_CRASH_PARAMS];
+ u64 hv_crash_ctl;
+
+ struct ms_hyperv_tsc_page tsc_ref;
+
+ struct idr conn_to_evt;
+
+ u64 hv_reenlightenment_control;
+ u64 hv_tsc_emulation_control;
+ u64 hv_tsc_emulation_status;
+ u64 hv_invtsc_control;
+
+ /* How many vCPUs have VP index != vCPU index */
+ atomic_t num_mismatched_vp_indexes;
+
+ /*
+ * How many SynICs use 'AutoEOI' feature
+ * (protected by arch.apicv_update_lock)
+ */
+ unsigned int synic_auto_eoi_used;
+
+ struct hv_partition_assist_pg *hv_pa_pg;
+ struct kvm_hv_syndbg hv_syndbg;
+};
+
+struct msr_bitmap_range {
+ u32 flags;
+ u32 nmsrs;
+ u32 base;
+ unsigned long *bitmap;
+};
+
+/* Xen emulation context */
+struct kvm_xen {
+ struct mutex xen_lock;
+ u32 xen_version;
+ bool long_mode;
+ bool runstate_update_flag;
+ u8 upcall_vector;
+ struct gfn_to_pfn_cache shinfo_cache;
+ struct idr evtchn_ports;
+ unsigned long poll_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
+};
+
+enum kvm_irqchip_mode {
+ KVM_IRQCHIP_NONE,
+ KVM_IRQCHIP_KERNEL, /* created with KVM_CREATE_IRQCHIP */
+ KVM_IRQCHIP_SPLIT, /* created with KVM_CAP_SPLIT_IRQCHIP */
+};
+
+struct kvm_x86_msr_filter {
+ u8 count;
+ bool default_allow:1;
+ struct msr_bitmap_range ranges[16];
+};
+
+struct kvm_x86_pmu_event_filter {
+ __u32 action;
+ __u32 nevents;
+ __u32 fixed_counter_bitmap;
+ __u32 flags;
+ __u32 nr_includes;
+ __u32 nr_excludes;
+ __u64 *includes;
+ __u64 *excludes;
+ __u64 events[];
+};
+
+enum kvm_apicv_inhibit {
+
+ /********************************************************************/
+ /* INHIBITs that are relevant to both Intel's APICv and AMD's AVIC. */
+ /********************************************************************/
+
+ /*
+ * APIC acceleration is disabled by a module parameter
+ * and/or not supported in hardware.
+ */
+ APICV_INHIBIT_REASON_DISABLE,
+
+ /*
+ * APIC acceleration is inhibited because AutoEOI feature is
+ * being used by a HyperV guest.
+ */
+ APICV_INHIBIT_REASON_HYPERV,
+
+ /*
+ * APIC acceleration is inhibited because the userspace didn't yet
+ * enable the kernel/split irqchip.
+ */
+ APICV_INHIBIT_REASON_ABSENT,
+
+ /* APIC acceleration is inhibited because KVM_GUESTDBG_BLOCKIRQ
+ * (out of band, debug measure of blocking all interrupts on this vCPU)
+ * was enabled, to avoid AVIC/APICv bypassing it.
+ */
+ APICV_INHIBIT_REASON_BLOCKIRQ,
+
+ /*
+ * APICv is disabled because not all vCPUs have a 1:1 mapping between
+ * APIC ID and vCPU, _and_ KVM is not applying its x2APIC hotplug hack.
+ */
+ APICV_INHIBIT_REASON_PHYSICAL_ID_ALIASED,
+
+ /*
+ * For simplicity, the APIC acceleration is inhibited
+ * first time either APIC ID or APIC base are changed by the guest
+ * from their reset values.
+ */
+ APICV_INHIBIT_REASON_APIC_ID_MODIFIED,
+ APICV_INHIBIT_REASON_APIC_BASE_MODIFIED,
+
+ /******************************************************/
+ /* INHIBITs that are relevant only to the AMD's AVIC. */
+ /******************************************************/
+
+ /*
+ * AVIC is inhibited on a vCPU because it runs a nested guest.
+ *
+ * This is needed because unlike APICv, the peers of this vCPU
+ * cannot use the doorbell mechanism to signal interrupts via AVIC when
+ * a vCPU runs nested.
+ */
+ APICV_INHIBIT_REASON_NESTED,
+
+ /*
+ * On SVM, the wait for the IRQ window is implemented with pending vIRQ,
+ * which cannot be injected when the AVIC is enabled, thus AVIC
+ * is inhibited while KVM waits for IRQ window.
+ */
+ APICV_INHIBIT_REASON_IRQWIN,
+
+ /*
+ * PIT (i8254) 're-inject' mode, relies on EOI intercept,
+ * which AVIC doesn't support for edge triggered interrupts.
+ */
+ APICV_INHIBIT_REASON_PIT_REINJ,
+
+ /*
+ * AVIC is disabled because SEV doesn't support it.
+ */
+ APICV_INHIBIT_REASON_SEV,
+
+ /*
+ * AVIC is disabled because not all vCPUs with a valid LDR have a 1:1
+ * mapping between logical ID and vCPU.
+ */
+ APICV_INHIBIT_REASON_LOGICAL_ID_ALIASED,
};
struct kvm_arch {
- unsigned int n_used_mmu_pages;
- unsigned int n_requested_mmu_pages;
- unsigned int n_max_mmu_pages;
- atomic_t invlpg_counter;
+ unsigned long n_used_mmu_pages;
+ unsigned long n_requested_mmu_pages;
+ unsigned long n_max_mmu_pages;
+ unsigned int indirect_shadow_pages;
+ u8 mmu_valid_gen;
struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
+ struct list_head active_mmu_pages;
+ struct list_head zapped_obsolete_pages;
/*
- * Hash table of struct kvm_mmu_page.
+ * A list of kvm_mmu_page structs that, if zapped, could possibly be
+ * replaced by an NX huge page. A shadow page is on this list if its
+ * existence disallows an NX huge page (nx_huge_page_disallowed is set)
+ * and there are no other conditions that prevent a huge page, e.g.
+ * the backing host page is huge, dirtly logging is not enabled for its
+ * memslot, etc... Note, zapping shadow pages on this list doesn't
+ * guarantee an NX huge page will be created in its stead, e.g. if the
+ * guest attempts to execute from the region then KVM obviously can't
+ * create an NX huge page (without hanging the guest).
*/
- struct list_head active_mmu_pages;
+ struct list_head possible_nx_huge_pages;
+ struct kvm_page_track_notifier_node mmu_sp_tracker;
+ struct kvm_page_track_notifier_head track_notifier_head;
+ /*
+ * Protects marking pages unsync during page faults, as TDP MMU page
+ * faults only take mmu_lock for read. For simplicity, the unsync
+ * pages lock is always taken when marking pages unsync regardless of
+ * whether mmu_lock is held for read or write.
+ */
+ spinlock_t mmu_unsync_pages_lock;
+
struct list_head assigned_dev_head;
struct iommu_domain *iommu_domain;
- int iommu_flags;
+ bool iommu_noncoherent;
+#define __KVM_HAVE_ARCH_NONCOHERENT_DMA
+ atomic_t noncoherent_dma_count;
+#define __KVM_HAVE_ARCH_ASSIGNED_DEVICE
+ atomic_t assigned_device_count;
struct kvm_pic *vpic;
struct kvm_ioapic *vioapic;
struct kvm_pit *vpit;
- int vapics_in_nmi_mode;
+ atomic_t vapics_in_nmi_mode;
+ struct mutex apic_map_lock;
+ struct kvm_apic_map __rcu *apic_map;
+ atomic_t apic_map_dirty;
+
+ bool apic_access_memslot_enabled;
+ bool apic_access_memslot_inhibited;
- unsigned int tss_addr;
- struct page *apic_access_page;
+ /* Protects apicv_inhibit_reasons */
+ struct rw_semaphore apicv_update_lock;
+ unsigned long apicv_inhibit_reasons;
gpa_t wall_clock;
- struct page *ept_identity_pagetable;
- bool ept_identity_pagetable_done;
- gpa_t ept_identity_map_addr;
+ bool mwait_in_guest;
+ bool hlt_in_guest;
+ bool pause_in_guest;
+ bool cstate_in_guest;
unsigned long irq_sources_bitmap;
s64 kvmclock_offset;
+
+ /*
+ * This also protects nr_vcpus_matched_tsc which is read from a
+ * preemption-disabled region, so it must be a raw spinlock.
+ */
raw_spinlock_t tsc_write_lock;
u64 last_tsc_nsec;
- u64 last_tsc_offset;
u64 last_tsc_write;
- u32 virtual_tsc_khz;
- u32 virtual_tsc_mult;
- s8 virtual_tsc_shift;
+ u32 last_tsc_khz;
+ u64 last_tsc_offset;
+ u64 cur_tsc_nsec;
+ u64 cur_tsc_write;
+ u64 cur_tsc_offset;
+ u64 cur_tsc_generation;
+ int nr_vcpus_matched_tsc;
+
+ u32 default_tsc_khz;
+
+ seqcount_raw_spinlock_t pvclock_sc;
+ bool use_master_clock;
+ u64 master_kernel_ns;
+ u64 master_cycle_now;
+ struct delayed_work kvmclock_update_work;
+ struct delayed_work kvmclock_sync_work;
struct kvm_xen_hvm_config xen_hvm_config;
- /* fields used by HYPER-V emulation */
- u64 hv_guest_os_id;
- u64 hv_hypercall;
+ /* reads protected by irq_srcu, writes by irq_lock */
+ struct hlist_head mask_notifier_list;
+
+ struct kvm_hv hyperv;
+ struct kvm_xen xen;
+
+ bool backwards_tsc_observed;
+ bool boot_vcpu_runs_old_kvmclock;
+ u32 bsp_vcpu_id;
+
+ u64 disabled_quirks;
+
+ enum kvm_irqchip_mode irqchip_mode;
+ u8 nr_reserved_ioapic_pins;
+
+ bool disabled_lapic_found;
+
+ bool x2apic_format;
+ bool x2apic_broadcast_quirk_disabled;
+
+ bool guest_can_read_msr_platform_info;
+ bool exception_payload_enabled;
+
+ bool triple_fault_event;
+
+ bool bus_lock_detection_enabled;
+ bool enable_pmu;
+
+ u32 notify_window;
+ u32 notify_vmexit_flags;
+ /*
+ * If exit_on_emulation_error is set, and the in-kernel instruction
+ * emulator fails to emulate an instruction, allow userspace
+ * the opportunity to look at it.
+ */
+ bool exit_on_emulation_error;
- #ifdef CONFIG_KVM_MMU_AUDIT
- int audit_point;
- #endif
+ /* Deflect RDMSR and WRMSR to user space when they trigger a #GP */
+ u32 user_space_msr_mask;
+ struct kvm_x86_msr_filter __rcu *msr_filter;
+
+ u32 hypercall_exit_enabled;
+
+ /* Guest can access the SGX PROVISIONKEY. */
+ bool sgx_provisioning_allowed;
+
+ struct kvm_x86_pmu_event_filter __rcu *pmu_event_filter;
+ struct task_struct *nx_huge_page_recovery_thread;
+
+#ifdef CONFIG_X86_64
+ /* The number of TDP MMU pages across all roots. */
+ atomic64_t tdp_mmu_pages;
+
+ /*
+ * List of struct kvm_mmu_pages being used as roots.
+ * All struct kvm_mmu_pages in the list should have
+ * tdp_mmu_page set.
+ *
+ * For reads, this list is protected by:
+ * the MMU lock in read mode + RCU or
+ * the MMU lock in write mode
+ *
+ * For writes, this list is protected by:
+ * the MMU lock in read mode + the tdp_mmu_pages_lock or
+ * the MMU lock in write mode
+ *
+ * Roots will remain in the list until their tdp_mmu_root_count
+ * drops to zero, at which point the thread that decremented the
+ * count to zero should removed the root from the list and clean
+ * it up, freeing the root after an RCU grace period.
+ */
+ struct list_head tdp_mmu_roots;
+
+ /*
+ * Protects accesses to the following fields when the MMU lock
+ * is held in read mode:
+ * - tdp_mmu_roots (above)
+ * - the link field of kvm_mmu_page structs used by the TDP MMU
+ * - possible_nx_huge_pages;
+ * - the possible_nx_huge_page_link field of kvm_mmu_page structs used
+ * by the TDP MMU
+ * It is acceptable, but not necessary, to acquire this lock when
+ * the thread holds the MMU lock in write mode.
+ */
+ spinlock_t tdp_mmu_pages_lock;
+ struct workqueue_struct *tdp_mmu_zap_wq;
+#endif /* CONFIG_X86_64 */
+
+ /*
+ * If set, at least one shadow root has been allocated. This flag
+ * is used as one input when determining whether certain memslot
+ * related allocations are necessary.
+ */
+ bool shadow_root_allocated;
+
+#if IS_ENABLED(CONFIG_HYPERV)
+ hpa_t hv_root_tdp;
+ spinlock_t hv_root_tdp_lock;
+#endif
+ /*
+ * VM-scope maximum vCPU ID. Used to determine the size of structures
+ * that increase along with the maximum vCPU ID, in which case, using
+ * the global KVM_MAX_VCPU_IDS may lead to significant memory waste.
+ */
+ u32 max_vcpu_ids;
+
+ bool disable_nx_huge_pages;
+
+ /*
+ * Memory caches used to allocate shadow pages when performing eager
+ * page splitting. No need for a shadowed_info_cache since eager page
+ * splitting only allocates direct shadow pages.
+ *
+ * Protected by kvm->slots_lock.
+ */
+ struct kvm_mmu_memory_cache split_shadow_page_cache;
+ struct kvm_mmu_memory_cache split_page_header_cache;
+
+ /*
+ * Memory cache used to allocate pte_list_desc structs while splitting
+ * huge pages. In the worst case, to split one huge page, 512
+ * pte_list_desc structs are needed to add each lower level leaf sptep
+ * to the rmap plus 1 to extend the parent_ptes rmap of the lower level
+ * page table.
+ *
+ * Protected by kvm->slots_lock.
+ */
+#define SPLIT_DESC_CACHE_MIN_NR_OBJECTS (SPTE_ENT_PER_PAGE + 1)
+ struct kvm_mmu_memory_cache split_desc_cache;
};
struct kvm_vm_stat {
- u32 mmu_shadow_zapped;
- u32 mmu_pte_write;
- u32 mmu_pte_updated;
- u32 mmu_pde_zapped;
- u32 mmu_flooded;
- u32 mmu_recycled;
- u32 mmu_cache_miss;
- u32 mmu_unsync;
- u32 remote_tlb_flush;
- u32 lpages;
+ struct kvm_vm_stat_generic generic;
+ u64 mmu_shadow_zapped;
+ u64 mmu_pte_write;
+ u64 mmu_pde_zapped;
+ u64 mmu_flooded;
+ u64 mmu_recycled;
+ u64 mmu_cache_miss;
+ u64 mmu_unsync;
+ union {
+ struct {
+ atomic64_t pages_4k;
+ atomic64_t pages_2m;
+ atomic64_t pages_1g;
+ };
+ atomic64_t pages[KVM_NR_PAGE_SIZES];
+ };
+ u64 nx_lpage_splits;
+ u64 max_mmu_page_hash_collisions;
+ u64 max_mmu_rmap_size;
};
struct kvm_vcpu_stat {
- u32 pf_fixed;
- u32 pf_guest;
- u32 tlb_flush;
- u32 invlpg;
-
- u32 exits;
- u32 io_exits;
- u32 mmio_exits;
- u32 signal_exits;
- u32 irq_window_exits;
- u32 nmi_window_exits;
- u32 halt_exits;
- u32 halt_wakeup;
- u32 request_irq_exits;
- u32 irq_exits;
- u32 host_state_reload;
- u32 efer_reload;
- u32 fpu_reload;
- u32 insn_emulation;
- u32 insn_emulation_fail;
- u32 hypercalls;
- u32 irq_injections;
- u32 nmi_injections;
+ struct kvm_vcpu_stat_generic generic;
+ u64 pf_taken;
+ u64 pf_fixed;
+ u64 pf_emulate;
+ u64 pf_spurious;
+ u64 pf_fast;
+ u64 pf_mmio_spte_created;
+ u64 pf_guest;
+ u64 tlb_flush;
+ u64 invlpg;
+
+ u64 exits;
+ u64 io_exits;
+ u64 mmio_exits;
+ u64 signal_exits;
+ u64 irq_window_exits;
+ u64 nmi_window_exits;
+ u64 l1d_flush;
+ u64 halt_exits;
+ u64 request_irq_exits;
+ u64 irq_exits;
+ u64 host_state_reload;
+ u64 fpu_reload;
+ u64 insn_emulation;
+ u64 insn_emulation_fail;
+ u64 hypercalls;
+ u64 irq_injections;
+ u64 nmi_injections;
+ u64 req_event;
+ u64 nested_run;
+ u64 directed_yield_attempted;
+ u64 directed_yield_successful;
+ u64 preemption_reported;
+ u64 preemption_other;
+ u64 guest_mode;
+ u64 notify_window_exits;
+};
+
+struct x86_instruction_info;
+
+struct msr_data {
+ bool host_initiated;
+ u32 index;
+ u64 data;
+};
+
+struct kvm_lapic_irq {
+ u32 vector;
+ u16 delivery_mode;
+ u16 dest_mode;
+ bool level;
+ u16 trig_mode;
+ u32 shorthand;
+ u32 dest_id;
+ bool msi_redir_hint;
};
+static inline u16 kvm_lapic_irq_dest_mode(bool dest_mode_logical)
+{
+ return dest_mode_logical ? APIC_DEST_LOGICAL : APIC_DEST_PHYSICAL;
+}
+
struct kvm_x86_ops {
- int (*cpu_has_kvm_support)(void); /* __init */
- int (*disabled_by_bios)(void); /* __init */
- int (*hardware_enable)(void *dummy);
- void (*hardware_disable)(void *dummy);
- void (*check_processor_compatibility)(void *rtn);
- int (*hardware_setup)(void); /* __init */
- void (*hardware_unsetup)(void); /* __exit */
- bool (*cpu_has_accelerated_tpr)(void);
- void (*cpuid_update)(struct kvm_vcpu *vcpu);
+ const char *name;
+
+ int (*check_processor_compatibility)(void);
+
+ int (*hardware_enable)(void);
+ void (*hardware_disable)(void);
+ void (*hardware_unsetup)(void);
+ bool (*has_emulated_msr)(struct kvm *kvm, u32 index);
+ void (*vcpu_after_set_cpuid)(struct kvm_vcpu *vcpu);
+
+ unsigned int vm_size;
+ int (*vm_init)(struct kvm *kvm);
+ void (*vm_destroy)(struct kvm *kvm);
/* Create, but do not attach this VCPU */
- struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
+ int (*vcpu_precreate)(struct kvm *kvm);
+ int (*vcpu_create)(struct kvm_vcpu *vcpu);
void (*vcpu_free)(struct kvm_vcpu *vcpu);
- int (*vcpu_reset)(struct kvm_vcpu *vcpu);
+ void (*vcpu_reset)(struct kvm_vcpu *vcpu, bool init_event);
- void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
+ void (*prepare_switch_to_guest)(struct kvm_vcpu *vcpu);
void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
void (*vcpu_put)(struct kvm_vcpu *vcpu);
- void (*set_guest_debug)(struct kvm_vcpu *vcpu,
- struct kvm_guest_debug *dbg);
- int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
- int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
+ void (*update_exception_bitmap)(struct kvm_vcpu *vcpu);
+ int (*get_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
+ int (*set_msr)(struct kvm_vcpu *vcpu, struct msr_data *msr);
u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
void (*get_segment)(struct kvm_vcpu *vcpu,
struct kvm_segment *var, int seg);
@@ -533,63 +1566,201 @@ struct kvm_x86_ops {
void (*set_segment)(struct kvm_vcpu *vcpu,
struct kvm_segment *var, int seg);
void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
- void (*decache_cr0_guest_bits)(struct kvm_vcpu *vcpu);
- void (*decache_cr3)(struct kvm_vcpu *vcpu);
- void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu);
void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
- void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
+ void (*post_set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
+ bool (*is_valid_cr4)(struct kvm_vcpu *vcpu, unsigned long cr0);
void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
- void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
+ int (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
void (*get_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
void (*set_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
void (*get_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
void (*set_gdt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
+ void (*sync_dirty_debug_regs)(struct kvm_vcpu *vcpu);
void (*set_dr7)(struct kvm_vcpu *vcpu, unsigned long value);
void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg);
unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
- void (*fpu_activate)(struct kvm_vcpu *vcpu);
- void (*fpu_deactivate)(struct kvm_vcpu *vcpu);
+ bool (*get_if_flag)(struct kvm_vcpu *vcpu);
- void (*tlb_flush)(struct kvm_vcpu *vcpu);
+ void (*flush_tlb_all)(struct kvm_vcpu *vcpu);
+ void (*flush_tlb_current)(struct kvm_vcpu *vcpu);
+ int (*flush_remote_tlbs)(struct kvm *kvm);
+ int (*flush_remote_tlbs_range)(struct kvm *kvm, gfn_t gfn,
+ gfn_t nr_pages);
- void (*run)(struct kvm_vcpu *vcpu);
- int (*handle_exit)(struct kvm_vcpu *vcpu);
- void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
+ /*
+ * Flush any TLB entries associated with the given GVA.
+ * Does not need to flush GPA->HPA mappings.
+ * Can potentially get non-canonical addresses through INVLPGs, which
+ * the implementation may choose to ignore if appropriate.
+ */
+ void (*flush_tlb_gva)(struct kvm_vcpu *vcpu, gva_t addr);
+
+ /*
+ * Flush any TLB entries created by the guest. Like tlb_flush_gva(),
+ * does not need to flush GPA->HPA mappings.
+ */
+ void (*flush_tlb_guest)(struct kvm_vcpu *vcpu);
+
+ int (*vcpu_pre_run)(struct kvm_vcpu *vcpu);
+ enum exit_fastpath_completion (*vcpu_run)(struct kvm_vcpu *vcpu);
+ int (*handle_exit)(struct kvm_vcpu *vcpu,
+ enum exit_fastpath_completion exit_fastpath);
+ int (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
+ void (*update_emulated_instruction)(struct kvm_vcpu *vcpu);
void (*set_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask);
- u32 (*get_interrupt_shadow)(struct kvm_vcpu *vcpu, int mask);
+ u32 (*get_interrupt_shadow)(struct kvm_vcpu *vcpu);
void (*patch_hypercall)(struct kvm_vcpu *vcpu,
unsigned char *hypercall_addr);
- void (*set_irq)(struct kvm_vcpu *vcpu);
- void (*set_nmi)(struct kvm_vcpu *vcpu);
- void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr,
- bool has_error_code, u32 error_code,
- bool reinject);
+ void (*inject_irq)(struct kvm_vcpu *vcpu, bool reinjected);
+ void (*inject_nmi)(struct kvm_vcpu *vcpu);
+ void (*inject_exception)(struct kvm_vcpu *vcpu);
void (*cancel_injection)(struct kvm_vcpu *vcpu);
- int (*interrupt_allowed)(struct kvm_vcpu *vcpu);
- int (*nmi_allowed)(struct kvm_vcpu *vcpu);
+ int (*interrupt_allowed)(struct kvm_vcpu *vcpu, bool for_injection);
+ int (*nmi_allowed)(struct kvm_vcpu *vcpu, bool for_injection);
bool (*get_nmi_mask)(struct kvm_vcpu *vcpu);
void (*set_nmi_mask)(struct kvm_vcpu *vcpu, bool masked);
+ /* Whether or not a virtual NMI is pending in hardware. */
+ bool (*is_vnmi_pending)(struct kvm_vcpu *vcpu);
+ /*
+ * Attempt to pend a virtual NMI in harware. Returns %true on success
+ * to allow using static_call_ret0 as the fallback.
+ */
+ bool (*set_vnmi_pending)(struct kvm_vcpu *vcpu);
void (*enable_nmi_window)(struct kvm_vcpu *vcpu);
void (*enable_irq_window)(struct kvm_vcpu *vcpu);
void (*update_cr8_intercept)(struct kvm_vcpu *vcpu, int tpr, int irr);
+ bool (*check_apicv_inhibit_reasons)(enum kvm_apicv_inhibit reason);
+ const unsigned long required_apicv_inhibits;
+ bool allow_apicv_in_x2apic_without_x2apic_virtualization;
+ void (*refresh_apicv_exec_ctrl)(struct kvm_vcpu *vcpu);
+ void (*hwapic_irr_update)(struct kvm_vcpu *vcpu, int max_irr);
+ void (*hwapic_isr_update)(int isr);
+ bool (*guest_apic_has_interrupt)(struct kvm_vcpu *vcpu);
+ void (*load_eoi_exitmap)(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap);
+ void (*set_virtual_apic_mode)(struct kvm_vcpu *vcpu);
+ void (*set_apic_access_page_addr)(struct kvm_vcpu *vcpu);
+ void (*deliver_interrupt)(struct kvm_lapic *apic, int delivery_mode,
+ int trig_mode, int vector);
+ int (*sync_pir_to_irr)(struct kvm_vcpu *vcpu);
int (*set_tss_addr)(struct kvm *kvm, unsigned int addr);
- int (*get_tdp_level)(void);
- u64 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
- int (*get_lpage_level)(void);
- bool (*rdtscp_supported)(void);
- void (*adjust_tsc_offset)(struct kvm_vcpu *vcpu, s64 adjustment);
+ int (*set_identity_map_addr)(struct kvm *kvm, u64 ident_addr);
+ u8 (*get_mt_mask)(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio);
- void (*set_tdp_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
-
- void (*set_supported_cpuid)(u32 func, struct kvm_cpuid_entry2 *entry);
+ void (*load_mmu_pgd)(struct kvm_vcpu *vcpu, hpa_t root_hpa,
+ int root_level);
bool (*has_wbinvd_exit)(void);
+ u64 (*get_l2_tsc_offset)(struct kvm_vcpu *vcpu);
+ u64 (*get_l2_tsc_multiplier)(struct kvm_vcpu *vcpu);
void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset);
+ void (*write_tsc_multiplier)(struct kvm_vcpu *vcpu, u64 multiplier);
+
+ /*
+ * Retrieve somewhat arbitrary exit information. Intended to
+ * be used only from within tracepoints or error paths.
+ */
+ void (*get_exit_info)(struct kvm_vcpu *vcpu, u32 *reason,
+ u64 *info1, u64 *info2,
+ u32 *exit_int_info, u32 *exit_int_info_err_code);
+
+ int (*check_intercept)(struct kvm_vcpu *vcpu,
+ struct x86_instruction_info *info,
+ enum x86_intercept_stage stage,
+ struct x86_exception *exception);
+ void (*handle_exit_irqoff)(struct kvm_vcpu *vcpu);
+
+ void (*request_immediate_exit)(struct kvm_vcpu *vcpu);
- void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2);
- const struct trace_print_flags *exit_reasons_str;
+ void (*sched_in)(struct kvm_vcpu *kvm, int cpu);
+
+ /*
+ * Size of the CPU's dirty log buffer, i.e. VMX's PML buffer. A zero
+ * value indicates CPU dirty logging is unsupported or disabled.
+ */
+ int cpu_dirty_log_size;
+ void (*update_cpu_dirty_logging)(struct kvm_vcpu *vcpu);
+
+ const struct kvm_x86_nested_ops *nested_ops;
+
+ void (*vcpu_blocking)(struct kvm_vcpu *vcpu);
+ void (*vcpu_unblocking)(struct kvm_vcpu *vcpu);
+
+ int (*pi_update_irte)(struct kvm *kvm, unsigned int host_irq,
+ uint32_t guest_irq, bool set);
+ void (*pi_start_assignment)(struct kvm *kvm);
+ void (*apicv_post_state_restore)(struct kvm_vcpu *vcpu);
+ bool (*dy_apicv_has_pending_interrupt)(struct kvm_vcpu *vcpu);
+
+ int (*set_hv_timer)(struct kvm_vcpu *vcpu, u64 guest_deadline_tsc,
+ bool *expired);
+ void (*cancel_hv_timer)(struct kvm_vcpu *vcpu);
+
+ void (*setup_mce)(struct kvm_vcpu *vcpu);
+
+#ifdef CONFIG_KVM_SMM
+ int (*smi_allowed)(struct kvm_vcpu *vcpu, bool for_injection);
+ int (*enter_smm)(struct kvm_vcpu *vcpu, union kvm_smram *smram);
+ int (*leave_smm)(struct kvm_vcpu *vcpu, const union kvm_smram *smram);
+ void (*enable_smi_window)(struct kvm_vcpu *vcpu);
+#endif
+
+ int (*mem_enc_ioctl)(struct kvm *kvm, void __user *argp);
+ int (*mem_enc_register_region)(struct kvm *kvm, struct kvm_enc_region *argp);
+ int (*mem_enc_unregister_region)(struct kvm *kvm, struct kvm_enc_region *argp);
+ int (*vm_copy_enc_context_from)(struct kvm *kvm, unsigned int source_fd);
+ int (*vm_move_enc_context_from)(struct kvm *kvm, unsigned int source_fd);
+ void (*guest_memory_reclaimed)(struct kvm *kvm);
+
+ int (*get_msr_feature)(struct kvm_msr_entry *entry);
+
+ bool (*can_emulate_instruction)(struct kvm_vcpu *vcpu, int emul_type,
+ void *insn, int insn_len);
+
+ bool (*apic_init_signal_blocked)(struct kvm_vcpu *vcpu);
+ int (*enable_l2_tlb_flush)(struct kvm_vcpu *vcpu);
+
+ void (*migrate_timers)(struct kvm_vcpu *vcpu);
+ void (*msr_filter_changed)(struct kvm_vcpu *vcpu);
+ int (*complete_emulated_msr)(struct kvm_vcpu *vcpu, int err);
+
+ void (*vcpu_deliver_sipi_vector)(struct kvm_vcpu *vcpu, u8 vector);
+
+ /*
+ * Returns vCPU specific APICv inhibit reasons
+ */
+ unsigned long (*vcpu_get_apicv_inhibit_reasons)(struct kvm_vcpu *vcpu);
+};
+
+struct kvm_x86_nested_ops {
+ void (*leave_nested)(struct kvm_vcpu *vcpu);
+ bool (*is_exception_vmexit)(struct kvm_vcpu *vcpu, u8 vector,
+ u32 error_code);
+ int (*check_events)(struct kvm_vcpu *vcpu);
+ bool (*has_events)(struct kvm_vcpu *vcpu);
+ void (*triple_fault)(struct kvm_vcpu *vcpu);
+ int (*get_state)(struct kvm_vcpu *vcpu,
+ struct kvm_nested_state __user *user_kvm_nested_state,
+ unsigned user_data_size);
+ int (*set_state)(struct kvm_vcpu *vcpu,
+ struct kvm_nested_state __user *user_kvm_nested_state,
+ struct kvm_nested_state *kvm_state);
+ bool (*get_nested_state_pages)(struct kvm_vcpu *vcpu);
+ int (*write_log_dirty)(struct kvm_vcpu *vcpu, gpa_t l2_gpa);
+
+ int (*enable_evmcs)(struct kvm_vcpu *vcpu,
+ uint16_t *vmcs_version);
+ uint16_t (*get_evmcs_version)(struct kvm_vcpu *vcpu);
+ void (*hv_inject_synthetic_vmexit_post_tlb_flush)(struct kvm_vcpu *vcpu);
+};
+
+struct kvm_x86_init_ops {
+ int (*hardware_setup)(void);
+ unsigned int (*handle_intel_pt_intr)(void);
+
+ struct kvm_x86_ops *runtime_ops;
+ struct kvm_pmu_ops *pmu_ops;
};
struct kvm_arch_async_pf {
@@ -599,146 +1770,290 @@ struct kvm_arch_async_pf {
bool direct_map;
};
-extern struct kvm_x86_ops *kvm_x86_ops;
+extern u32 __read_mostly kvm_nr_uret_msrs;
+extern u64 __read_mostly host_efer;
+extern bool __read_mostly allow_smaller_maxphyaddr;
+extern bool __read_mostly enable_apicv;
+extern struct kvm_x86_ops kvm_x86_ops;
+
+#define KVM_X86_OP(func) \
+ DECLARE_STATIC_CALL(kvm_x86_##func, *(((struct kvm_x86_ops *)0)->func));
+#define KVM_X86_OP_OPTIONAL KVM_X86_OP
+#define KVM_X86_OP_OPTIONAL_RET0 KVM_X86_OP
+#include <asm/kvm-x86-ops.h>
+
+int kvm_x86_vendor_init(struct kvm_x86_init_ops *ops);
+void kvm_x86_vendor_exit(void);
+
+#define __KVM_HAVE_ARCH_VM_ALLOC
+static inline struct kvm *kvm_arch_alloc_vm(void)
+{
+ return __vmalloc(kvm_x86_ops.vm_size, GFP_KERNEL_ACCOUNT | __GFP_ZERO);
+}
-int kvm_mmu_module_init(void);
-void kvm_mmu_module_exit(void);
+#define __KVM_HAVE_ARCH_VM_FREE
+void kvm_arch_free_vm(struct kvm *kvm);
+
+#define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLB
+static inline int kvm_arch_flush_remote_tlb(struct kvm *kvm)
+{
+ if (kvm_x86_ops.flush_remote_tlbs &&
+ !static_call(kvm_x86_flush_remote_tlbs)(kvm))
+ return 0;
+ else
+ return -ENOTSUPP;
+}
+
+#define kvm_arch_pmi_in_guest(vcpu) \
+ ((vcpu) && (vcpu)->arch.handling_intr_from_guest)
+
+void __init kvm_mmu_x86_module_init(void);
+int kvm_mmu_vendor_module_init(void);
+void kvm_mmu_vendor_module_exit(void);
void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
int kvm_mmu_create(struct kvm_vcpu *vcpu);
-int kvm_mmu_setup(struct kvm_vcpu *vcpu);
-void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte);
-void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
- u64 dirty_mask, u64 nx_mask, u64 x_mask);
-
-int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
-void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
+int kvm_mmu_init_vm(struct kvm *kvm);
+void kvm_mmu_uninit_vm(struct kvm *kvm);
+
+void kvm_mmu_after_set_cpuid(struct kvm_vcpu *vcpu);
+void kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
+void kvm_mmu_slot_remove_write_access(struct kvm *kvm,
+ const struct kvm_memory_slot *memslot,
+ int start_level);
+void kvm_mmu_slot_try_split_huge_pages(struct kvm *kvm,
+ const struct kvm_memory_slot *memslot,
+ int target_level);
+void kvm_mmu_try_split_huge_pages(struct kvm *kvm,
+ const struct kvm_memory_slot *memslot,
+ u64 start, u64 end,
+ int target_level);
+void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm,
+ const struct kvm_memory_slot *memslot);
+void kvm_mmu_slot_leaf_clear_dirty(struct kvm *kvm,
+ const struct kvm_memory_slot *memslot);
void kvm_mmu_zap_all(struct kvm *kvm);
-unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
-void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
+void kvm_mmu_invalidate_mmio_sptes(struct kvm *kvm, u64 gen);
+void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned long kvm_nr_mmu_pages);
-int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3);
+int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3);
int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
const void *val, int bytes);
-int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes,
- gpa_t addr, unsigned long *ret);
-u8 kvm_get_guest_memory_type(struct kvm_vcpu *vcpu, gfn_t gfn);
+
+struct kvm_irq_mask_notifier {
+ void (*func)(struct kvm_irq_mask_notifier *kimn, bool masked);
+ int irq;
+ struct hlist_node link;
+};
+
+void kvm_register_irq_mask_notifier(struct kvm *kvm, int irq,
+ struct kvm_irq_mask_notifier *kimn);
+void kvm_unregister_irq_mask_notifier(struct kvm *kvm, int irq,
+ struct kvm_irq_mask_notifier *kimn);
+void kvm_fire_mask_notifiers(struct kvm *kvm, unsigned irqchip, unsigned pin,
+ bool mask);
extern bool tdp_enabled;
-enum emulation_result {
- EMULATE_DONE, /* no further processing */
- EMULATE_DO_MMIO, /* kvm_run filled with mmio request */
- EMULATE_FAIL, /* can't emulate this instruction */
-};
+u64 vcpu_tsc_khz(struct kvm_vcpu *vcpu);
+/*
+ * EMULTYPE_NO_DECODE - Set when re-emulating an instruction (after completing
+ * userspace I/O) to indicate that the emulation context
+ * should be reused as is, i.e. skip initialization of
+ * emulation context, instruction fetch and decode.
+ *
+ * EMULTYPE_TRAP_UD - Set when emulating an intercepted #UD from hardware.
+ * Indicates that only select instructions (tagged with
+ * EmulateOnUD) should be emulated (to minimize the emulator
+ * attack surface). See also EMULTYPE_TRAP_UD_FORCED.
+ *
+ * EMULTYPE_SKIP - Set when emulating solely to skip an instruction, i.e. to
+ * decode the instruction length. For use *only* by
+ * kvm_x86_ops.skip_emulated_instruction() implementations if
+ * EMULTYPE_COMPLETE_USER_EXIT is not set.
+ *
+ * EMULTYPE_ALLOW_RETRY_PF - Set when the emulator should resume the guest to
+ * retry native execution under certain conditions,
+ * Can only be set in conjunction with EMULTYPE_PF.
+ *
+ * EMULTYPE_TRAP_UD_FORCED - Set when emulating an intercepted #UD that was
+ * triggered by KVM's magic "force emulation" prefix,
+ * which is opt in via module param (off by default).
+ * Bypasses EmulateOnUD restriction despite emulating
+ * due to an intercepted #UD (see EMULTYPE_TRAP_UD).
+ * Used to test the full emulator from userspace.
+ *
+ * EMULTYPE_VMWARE_GP - Set when emulating an intercepted #GP for VMware
+ * backdoor emulation, which is opt in via module param.
+ * VMware backdoor emulation handles select instructions
+ * and reinjects the #GP for all other cases.
+ *
+ * EMULTYPE_PF - Set when emulating MMIO by way of an intercepted #PF, in which
+ * case the CR2/GPA value pass on the stack is valid.
+ *
+ * EMULTYPE_COMPLETE_USER_EXIT - Set when the emulator should update interruptibility
+ * state and inject single-step #DBs after skipping
+ * an instruction (after completing userspace I/O).
+ *
+ * EMULTYPE_WRITE_PF_TO_SP - Set when emulating an intercepted page fault that
+ * is attempting to write a gfn that contains one or
+ * more of the PTEs used to translate the write itself,
+ * and the owning page table is being shadowed by KVM.
+ * If emulation of the faulting instruction fails and
+ * this flag is set, KVM will exit to userspace instead
+ * of retrying emulation as KVM cannot make forward
+ * progress.
+ *
+ * If emulation fails for a write to guest page tables,
+ * KVM unprotects (zaps) the shadow page for the target
+ * gfn and resumes the guest to retry the non-emulatable
+ * instruction (on hardware). Unprotecting the gfn
+ * doesn't allow forward progress for a self-changing
+ * access because doing so also zaps the translation for
+ * the gfn, i.e. retrying the instruction will hit a
+ * !PRESENT fault, which results in a new shadow page
+ * and sends KVM back to square one.
+ */
#define EMULTYPE_NO_DECODE (1 << 0)
#define EMULTYPE_TRAP_UD (1 << 1)
#define EMULTYPE_SKIP (1 << 2)
-int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2,
- int emulation_type, void *insn, int insn_len);
-
-static inline int emulate_instruction(struct kvm_vcpu *vcpu,
- int emulation_type)
-{
- return x86_emulate_instruction(vcpu, 0, emulation_type, NULL, 0);
-}
-
-void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
-void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
+#define EMULTYPE_ALLOW_RETRY_PF (1 << 3)
+#define EMULTYPE_TRAP_UD_FORCED (1 << 4)
+#define EMULTYPE_VMWARE_GP (1 << 5)
+#define EMULTYPE_PF (1 << 6)
+#define EMULTYPE_COMPLETE_USER_EXIT (1 << 7)
+#define EMULTYPE_WRITE_PF_TO_SP (1 << 8)
+
+int kvm_emulate_instruction(struct kvm_vcpu *vcpu, int emulation_type);
+int kvm_emulate_instruction_from_buffer(struct kvm_vcpu *vcpu,
+ void *insn, int insn_len);
+void __kvm_prepare_emulation_failure_exit(struct kvm_vcpu *vcpu,
+ u64 *data, u8 ndata);
+void kvm_prepare_emulation_failure_exit(struct kvm_vcpu *vcpu);
void kvm_enable_efer_bits(u64);
-int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data);
-int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
-
-struct x86_emulate_ctxt;
-
-int kvm_fast_pio_out(struct kvm_vcpu *vcpu, int size, unsigned short port);
-void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
+bool kvm_valid_efer(struct kvm_vcpu *vcpu, u64 efer);
+int __kvm_get_msr(struct kvm_vcpu *vcpu, u32 index, u64 *data, bool host_initiated);
+int kvm_get_msr(struct kvm_vcpu *vcpu, u32 index, u64 *data);
+int kvm_set_msr(struct kvm_vcpu *vcpu, u32 index, u64 data);
+int kvm_emulate_rdmsr(struct kvm_vcpu *vcpu);
+int kvm_emulate_wrmsr(struct kvm_vcpu *vcpu);
+int kvm_emulate_as_nop(struct kvm_vcpu *vcpu);
+int kvm_emulate_invd(struct kvm_vcpu *vcpu);
+int kvm_emulate_mwait(struct kvm_vcpu *vcpu);
+int kvm_handle_invalid_op(struct kvm_vcpu *vcpu);
+int kvm_emulate_monitor(struct kvm_vcpu *vcpu);
+
+int kvm_fast_pio(struct kvm_vcpu *vcpu, int size, unsigned short port, int in);
+int kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
int kvm_emulate_halt(struct kvm_vcpu *vcpu);
-int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
-int emulate_clts(struct kvm_vcpu *vcpu);
+int kvm_emulate_halt_noskip(struct kvm_vcpu *vcpu);
+int kvm_emulate_ap_reset_hold(struct kvm_vcpu *vcpu);
int kvm_emulate_wbinvd(struct kvm_vcpu *vcpu);
void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
+void kvm_set_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg);
int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, int seg);
+void kvm_vcpu_deliver_sipi_vector(struct kvm_vcpu *vcpu, u8 vector);
-int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason,
- bool has_error_code, u32 error_code);
+int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int idt_index,
+ int reason, bool has_error_code, u32 error_code);
+void kvm_post_set_cr0(struct kvm_vcpu *vcpu, unsigned long old_cr0, unsigned long cr0);
+void kvm_post_set_cr4(struct kvm_vcpu *vcpu, unsigned long old_cr4, unsigned long cr4);
int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
int kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8);
int kvm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long val);
-int kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val);
+void kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val);
unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
-void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
-int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr);
+int kvm_emulate_xsetbv(struct kvm_vcpu *vcpu);
-int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
-int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
+int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
+int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr);
unsigned long kvm_get_rflags(struct kvm_vcpu *vcpu);
void kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
+int kvm_emulate_rdpmc(struct kvm_vcpu *vcpu);
void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
+void kvm_queue_exception_p(struct kvm_vcpu *vcpu, unsigned nr, unsigned long payload);
void kvm_requeue_exception(struct kvm_vcpu *vcpu, unsigned nr);
void kvm_requeue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault);
-int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
- gfn_t gfn, void *data, int offset, int len,
- u32 access);
-void kvm_propagate_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault);
+void kvm_inject_emulated_page_fault(struct kvm_vcpu *vcpu,
+ struct x86_exception *fault);
bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl);
+bool kvm_require_dr(struct kvm_vcpu *vcpu, int dr);
+
+static inline int __kvm_irq_line_state(unsigned long *irq_state,
+ int irq_source_id, int level)
+{
+ /* Logical OR for level trig interrupt */
+ if (level)
+ __set_bit(irq_source_id, irq_state);
+ else
+ __clear_bit(irq_source_id, irq_state);
-int kvm_pic_set_irq(void *opaque, int irq, int level);
+ return !!(*irq_state);
+}
+
+int kvm_pic_set_irq(struct kvm_pic *pic, int irq, int irq_source_id, int level);
+void kvm_pic_clear_all(struct kvm_pic *pic, int irq_source_id);
void kvm_inject_nmi(struct kvm_vcpu *vcpu);
+int kvm_get_nr_pending_nmis(struct kvm_vcpu *vcpu);
+
+void kvm_update_dr7(struct kvm_vcpu *vcpu);
-int fx_init(struct kvm_vcpu *vcpu);
-
-void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu);
-void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
- const u8 *new, int bytes,
- bool guest_initiated);
-int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
-void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
-int kvm_mmu_load(struct kvm_vcpu *vcpu);
-void kvm_mmu_unload(struct kvm_vcpu *vcpu);
-void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu);
+int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn);
+void kvm_mmu_free_roots(struct kvm *kvm, struct kvm_mmu *mmu,
+ ulong roots_to_free);
+void kvm_mmu_free_guest_mode_roots(struct kvm *kvm, struct kvm_mmu *mmu);
gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva,
struct x86_exception *exception);
-gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva,
- struct x86_exception *exception);
gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva,
struct x86_exception *exception);
gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
struct x86_exception *exception);
-int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
-
-int kvm_fix_hypercall(struct kvm_vcpu *vcpu);
+bool kvm_apicv_activated(struct kvm *kvm);
+bool kvm_vcpu_apicv_activated(struct kvm_vcpu *vcpu);
+void __kvm_vcpu_update_apicv(struct kvm_vcpu *vcpu);
+void __kvm_set_or_clear_apicv_inhibit(struct kvm *kvm,
+ enum kvm_apicv_inhibit reason, bool set);
+void kvm_set_or_clear_apicv_inhibit(struct kvm *kvm,
+ enum kvm_apicv_inhibit reason, bool set);
-int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code,
- void *insn, int insn_len);
-void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
+static inline void kvm_set_apicv_inhibit(struct kvm *kvm,
+ enum kvm_apicv_inhibit reason)
+{
+ kvm_set_or_clear_apicv_inhibit(kvm, reason, true);
+}
-void kvm_enable_tdp(void);
-void kvm_disable_tdp(void);
+static inline void kvm_clear_apicv_inhibit(struct kvm *kvm,
+ enum kvm_apicv_inhibit reason)
+{
+ kvm_set_or_clear_apicv_inhibit(kvm, reason, false);
+}
-int complete_pio(struct kvm_vcpu *vcpu);
-bool kvm_check_iopl(struct kvm_vcpu *vcpu);
+int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
-static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
-{
- struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
+int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u64 error_code,
+ void *insn, int insn_len);
+void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
+void kvm_mmu_invalidate_addr(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
+ u64 addr, unsigned long roots);
+void kvm_mmu_invpcid_gva(struct kvm_vcpu *vcpu, gva_t gva, unsigned long pcid);
+void kvm_mmu_new_pgd(struct kvm_vcpu *vcpu, gpa_t new_pgd);
- return (struct kvm_mmu_page *)page_private(page);
-}
+void kvm_configure_mmu(bool enable_tdp, int tdp_forced_root_level,
+ int tdp_max_root_level, int tdp_huge_page_level);
static inline u16 kvm_read_ldt(void)
{
@@ -762,11 +2077,6 @@ static inline unsigned long read_msr(unsigned long msr)
}
#endif
-static inline u32 get_rdx_init_val(void)
-{
- return 0x600; /* P6 family */
-}
-
static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code)
{
kvm_queue_exception_e(vcpu, GP_VECTOR, error_code);
@@ -786,59 +2096,125 @@ enum {
TASK_SWITCH_GATE = 3,
};
-#define HF_GIF_MASK (1 << 0)
-#define HF_HIF_MASK (1 << 1)
-#define HF_VINTR_MASK (1 << 2)
-#define HF_NMI_MASK (1 << 3)
-#define HF_IRET_MASK (1 << 4)
-#define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */
+#define HF_GUEST_MASK (1 << 0) /* VCPU is in guest-mode */
-/*
- * Hardware virtualization extension instructions may fault if a
- * reboot turns off virtualization while processes are running.
- * Trap the fault and ignore the instruction if that happens.
- */
-asmlinkage void kvm_spurious_fault(void);
-extern bool kvm_rebooting;
-
-#define __kvm_handle_fault_on_reboot(insn) \
- "666: " insn "\n\t" \
- "668: \n\t" \
- ".pushsection .fixup, \"ax\" \n" \
- "667: \n\t" \
- "cmpb $0, kvm_rebooting \n\t" \
- "jne 668b \n\t" \
- __ASM_SIZE(push) " $666b \n\t" \
- "call kvm_spurious_fault \n\t" \
- ".popsection \n\t" \
- ".pushsection __ex_table, \"a\" \n\t" \
- _ASM_PTR " 666b, 667b \n\t" \
- ".popsection"
+#ifdef CONFIG_KVM_SMM
+#define HF_SMM_MASK (1 << 1)
+#define HF_SMM_INSIDE_NMI_MASK (1 << 2)
+
+# define __KVM_VCPU_MULTIPLE_ADDRESS_SPACE
+# define KVM_ADDRESS_SPACE_NUM 2
+# define kvm_arch_vcpu_memslots_id(vcpu) ((vcpu)->arch.hflags & HF_SMM_MASK ? 1 : 0)
+# define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, (role).smm)
+#else
+# define kvm_memslots_for_spte_role(kvm, role) __kvm_memslots(kvm, 0)
+#endif
#define KVM_ARCH_WANT_MMU_NOTIFIER
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
-int kvm_age_hva(struct kvm *kvm, unsigned long hva);
-int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
-void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
-int cpuid_maxphyaddr(struct kvm_vcpu *vcpu);
+
+int kvm_cpu_has_injectable_intr(struct kvm_vcpu *v);
int kvm_cpu_has_interrupt(struct kvm_vcpu *vcpu);
+int kvm_cpu_has_extint(struct kvm_vcpu *v);
int kvm_arch_interrupt_allowed(struct kvm_vcpu *vcpu);
int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
+void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event);
-void kvm_define_shared_msr(unsigned index, u32 msr);
-void kvm_set_shared_msr(unsigned index, u64 val, u64 mask);
+int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
+ unsigned long ipi_bitmap_high, u32 min,
+ unsigned long icr, int op_64_bit);
+int kvm_add_user_return_msr(u32 msr);
+int kvm_find_user_return_msr(u32 msr);
+int kvm_set_user_return_msr(unsigned index, u64 val, u64 mask);
+
+static inline bool kvm_is_supported_user_return_msr(u32 msr)
+{
+ return kvm_find_user_return_msr(msr) >= 0;
+}
+
+u64 kvm_scale_tsc(u64 tsc, u64 ratio);
+u64 kvm_read_l1_tsc(struct kvm_vcpu *vcpu, u64 host_tsc);
+u64 kvm_calc_nested_tsc_offset(u64 l1_offset, u64 l2_offset, u64 l2_multiplier);
+u64 kvm_calc_nested_tsc_multiplier(u64 l1_multiplier, u64 l2_multiplier);
+
+unsigned long kvm_get_linear_rip(struct kvm_vcpu *vcpu);
bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip);
-void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
+void kvm_make_scan_ioapic_request(struct kvm *kvm);
+void kvm_make_scan_ioapic_request_mask(struct kvm *kvm,
+ unsigned long *vcpu_bitmap);
+
+bool kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
struct kvm_async_pf *work);
void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
struct kvm_async_pf *work);
void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
struct kvm_async_pf *work);
-bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
+void kvm_arch_async_page_present_queued(struct kvm_vcpu *vcpu);
+bool kvm_arch_can_dequeue_async_page_present(struct kvm_vcpu *vcpu);
extern bool kvm_find_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn);
-void kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err);
+int kvm_skip_emulated_instruction(struct kvm_vcpu *vcpu);
+int kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err);
+void __kvm_request_immediate_exit(struct kvm_vcpu *vcpu);
+
+void __user *__x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa,
+ u32 size);
+bool kvm_vcpu_is_reset_bsp(struct kvm_vcpu *vcpu);
+bool kvm_vcpu_is_bsp(struct kvm_vcpu *vcpu);
+
+bool kvm_intr_is_single_vcpu(struct kvm *kvm, struct kvm_lapic_irq *irq,
+ struct kvm_vcpu **dest_vcpu);
+
+void kvm_set_msi_irq(struct kvm *kvm, struct kvm_kernel_irq_routing_entry *e,
+ struct kvm_lapic_irq *irq);
+
+static inline bool kvm_irq_is_postable(struct kvm_lapic_irq *irq)
+{
+ /* We can only post Fixed and LowPrio IRQs */
+ return (irq->delivery_mode == APIC_DM_FIXED ||
+ irq->delivery_mode == APIC_DM_LOWEST);
+}
+
+static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu)
+{
+ static_call_cond(kvm_x86_vcpu_blocking)(vcpu);
+}
+
+static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu)
+{
+ static_call_cond(kvm_x86_vcpu_unblocking)(vcpu);
+}
+
+static inline int kvm_cpu_get_apicid(int mps_cpu)
+{
+#ifdef CONFIG_X86_LOCAL_APIC
+ return default_cpu_present_to_apicid(mps_cpu);
+#else
+ WARN_ON_ONCE(1);
+ return BAD_APICID;
+#endif
+}
+
+int memslot_rmap_alloc(struct kvm_memory_slot *slot, unsigned long npages);
+
+#define KVM_CLOCK_VALID_FLAGS \
+ (KVM_CLOCK_TSC_STABLE | KVM_CLOCK_REALTIME | KVM_CLOCK_HOST_TSC)
+
+#define KVM_X86_VALID_QUIRKS \
+ (KVM_X86_QUIRK_LINT0_REENABLED | \
+ KVM_X86_QUIRK_CD_NW_CLEARED | \
+ KVM_X86_QUIRK_LAPIC_MMIO_HOLE | \
+ KVM_X86_QUIRK_OUT_7E_INC_RIP | \
+ KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT | \
+ KVM_X86_QUIRK_FIX_HYPERCALL_INSN | \
+ KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS)
+
+/*
+ * KVM previously used a u32 field in kvm_run to indicate the hypercall was
+ * initiated from long mode. KVM now sets bit 0 to indicate long mode, but the
+ * remaining 31 lower bits must be 0 to preserve ABI.
+ */
+#define KVM_EXIT_HYPERCALL_MBZ GENMASK_ULL(31, 1)
#endif /* _ASM_X86_KVM_HOST_H */
diff --git a/arch/x86/include/asm/kvm_page_track.h b/arch/x86/include/asm/kvm_page_track.h
new file mode 100644
index 000000000000..eb186bc57f6a
--- /dev/null
+++ b/arch/x86/include/asm/kvm_page_track.h
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_KVM_PAGE_TRACK_H
+#define _ASM_X86_KVM_PAGE_TRACK_H
+
+enum kvm_page_track_mode {
+ KVM_PAGE_TRACK_WRITE,
+ KVM_PAGE_TRACK_MAX,
+};
+
+/*
+ * The notifier represented by @kvm_page_track_notifier_node is linked into
+ * the head which will be notified when guest is triggering the track event.
+ *
+ * Write access on the head is protected by kvm->mmu_lock, read access
+ * is protected by track_srcu.
+ */
+struct kvm_page_track_notifier_head {
+ struct srcu_struct track_srcu;
+ struct hlist_head track_notifier_list;
+};
+
+struct kvm_page_track_notifier_node {
+ struct hlist_node node;
+
+ /*
+ * It is called when guest is writing the write-tracked page
+ * and write emulation is finished at that time.
+ *
+ * @vcpu: the vcpu where the write access happened.
+ * @gpa: the physical address written by guest.
+ * @new: the data was written to the address.
+ * @bytes: the written length.
+ * @node: this node
+ */
+ void (*track_write)(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *new,
+ int bytes, struct kvm_page_track_notifier_node *node);
+ /*
+ * It is called when memory slot is being moved or removed
+ * users can drop write-protection for the pages in that memory slot
+ *
+ * @kvm: the kvm where memory slot being moved or removed
+ * @slot: the memory slot being moved or removed
+ * @node: this node
+ */
+ void (*track_flush_slot)(struct kvm *kvm, struct kvm_memory_slot *slot,
+ struct kvm_page_track_notifier_node *node);
+};
+
+int kvm_page_track_init(struct kvm *kvm);
+void kvm_page_track_cleanup(struct kvm *kvm);
+
+bool kvm_page_track_write_tracking_enabled(struct kvm *kvm);
+int kvm_page_track_write_tracking_alloc(struct kvm_memory_slot *slot);
+
+void kvm_page_track_free_memslot(struct kvm_memory_slot *slot);
+int kvm_page_track_create_memslot(struct kvm *kvm,
+ struct kvm_memory_slot *slot,
+ unsigned long npages);
+
+void kvm_slot_page_track_add_page(struct kvm *kvm,
+ struct kvm_memory_slot *slot, gfn_t gfn,
+ enum kvm_page_track_mode mode);
+void kvm_slot_page_track_remove_page(struct kvm *kvm,
+ struct kvm_memory_slot *slot, gfn_t gfn,
+ enum kvm_page_track_mode mode);
+bool kvm_slot_page_track_is_active(struct kvm *kvm,
+ const struct kvm_memory_slot *slot,
+ gfn_t gfn, enum kvm_page_track_mode mode);
+
+void
+kvm_page_track_register_notifier(struct kvm *kvm,
+ struct kvm_page_track_notifier_node *n);
+void
+kvm_page_track_unregister_notifier(struct kvm *kvm,
+ struct kvm_page_track_notifier_node *n);
+void kvm_page_track_write(struct kvm_vcpu *vcpu, gpa_t gpa, const u8 *new,
+ int bytes);
+void kvm_page_track_flush_slot(struct kvm *kvm, struct kvm_memory_slot *slot);
+#endif
diff --git a/arch/x86/include/asm/kvm_para.h b/arch/x86/include/asm/kvm_para.h
index a427bf77a93d..57bc74e112f2 100644
--- a/arch/x86/include/asm/kvm_para.h
+++ b/arch/x86/include/asm/kvm_para.h
@@ -1,105 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_KVM_PARA_H
#define _ASM_X86_KVM_PARA_H
-#include <linux/types.h>
-#include <asm/hyperv.h>
-
-/* This CPUID returns the signature 'KVMKVMKVM' in ebx, ecx, and edx. It
- * should be used to determine that a VM is running under KVM.
- */
-#define KVM_CPUID_SIGNATURE 0x40000000
-
-/* This CPUID returns a feature bitmap in eax. Before enabling a particular
- * paravirtualization, the appropriate feature bit should be checked.
- */
-#define KVM_CPUID_FEATURES 0x40000001
-#define KVM_FEATURE_CLOCKSOURCE 0
-#define KVM_FEATURE_NOP_IO_DELAY 1
-#define KVM_FEATURE_MMU_OP 2
-/* This indicates that the new set of kvmclock msrs
- * are available. The use of 0x11 and 0x12 is deprecated
- */
-#define KVM_FEATURE_CLOCKSOURCE2 3
-#define KVM_FEATURE_ASYNC_PF 4
-
-/* The last 8 bits are used to indicate how to interpret the flags field
- * in pvclock structure. If no bits are set, all flags are ignored.
- */
-#define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 24
-
-#define MSR_KVM_WALL_CLOCK 0x11
-#define MSR_KVM_SYSTEM_TIME 0x12
-
-/* Custom MSRs falls in the range 0x4b564d00-0x4b564dff */
-#define MSR_KVM_WALL_CLOCK_NEW 0x4b564d00
-#define MSR_KVM_SYSTEM_TIME_NEW 0x4b564d01
-#define MSR_KVM_ASYNC_PF_EN 0x4b564d02
-
-#define KVM_MAX_MMU_OP_BATCH 32
-
-#define KVM_ASYNC_PF_ENABLED (1 << 0)
-#define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1)
-
-/* Operations for KVM_HC_MMU_OP */
-#define KVM_MMU_OP_WRITE_PTE 1
-#define KVM_MMU_OP_FLUSH_TLB 2
-#define KVM_MMU_OP_RELEASE_PT 3
-
-/* Payload for KVM_HC_MMU_OP */
-struct kvm_mmu_op_header {
- __u32 op;
- __u32 pad;
-};
-
-struct kvm_mmu_op_write_pte {
- struct kvm_mmu_op_header header;
- __u64 pte_phys;
- __u64 pte_val;
-};
-
-struct kvm_mmu_op_flush_tlb {
- struct kvm_mmu_op_header header;
-};
-
-struct kvm_mmu_op_release_pt {
- struct kvm_mmu_op_header header;
- __u64 pt_phys;
-};
-
-#define KVM_PV_REASON_PAGE_NOT_PRESENT 1
-#define KVM_PV_REASON_PAGE_READY 2
-
-struct kvm_vcpu_pv_apf_data {
- __u32 reason;
- __u8 pad[60];
- __u32 enabled;
-};
-
-#ifdef __KERNEL__
#include <asm/processor.h>
+#include <asm/alternative.h>
+#include <linux/interrupt.h>
+#include <uapi/asm/kvm_para.h>
-extern void kvmclock_init(void);
-extern int kvm_register_clock(char *txt);
+#include <asm/tdx.h>
+#ifdef CONFIG_KVM_GUEST
+bool kvm_check_and_clear_guest_paused(void);
+#else
+static inline bool kvm_check_and_clear_guest_paused(void)
+{
+ return false;
+}
+#endif /* CONFIG_KVM_GUEST */
-/* This instruction is vmcall. On non-VT architectures, it will generate a
- * trap that we will then rewrite to the appropriate instruction.
- */
-#define KVM_HYPERCALL ".byte 0x0f,0x01,0xc1"
+#define KVM_HYPERCALL \
+ ALTERNATIVE("vmcall", "vmmcall", X86_FEATURE_VMMCALL)
-/* For KVM hypercalls, a three-byte sequence of either the vmrun or the vmmrun
+/* For KVM hypercalls, a three-byte sequence of either the vmcall or the vmmcall
* instruction. The hypervisor may replace it with something else but only the
* instructions are guaranteed to be supported.
*
* Up to four arguments may be passed in rbx, rcx, rdx, and rsi respectively.
* The hypercall number should be placed in rax and the return value will be
- * placed in rax. No other registers will be clobbered unless explicited
+ * placed in rax. No other registers will be clobbered unless explicitly
* noted by the particular hypercall.
*/
static inline long kvm_hypercall0(unsigned int nr)
{
long ret;
+
+ if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST))
+ return tdx_kvm_hypercall(nr, 0, 0, 0, 0);
+
asm volatile(KVM_HYPERCALL
: "=a"(ret)
: "a"(nr)
@@ -110,6 +48,10 @@ static inline long kvm_hypercall0(unsigned int nr)
static inline long kvm_hypercall1(unsigned int nr, unsigned long p1)
{
long ret;
+
+ if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST))
+ return tdx_kvm_hypercall(nr, p1, 0, 0, 0);
+
asm volatile(KVM_HYPERCALL
: "=a"(ret)
: "a"(nr), "b"(p1)
@@ -121,6 +63,10 @@ static inline long kvm_hypercall2(unsigned int nr, unsigned long p1,
unsigned long p2)
{
long ret;
+
+ if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST))
+ return tdx_kvm_hypercall(nr, p1, p2, 0, 0);
+
asm volatile(KVM_HYPERCALL
: "=a"(ret)
: "a"(nr), "b"(p1), "c"(p2)
@@ -132,6 +78,10 @@ static inline long kvm_hypercall3(unsigned int nr, unsigned long p1,
unsigned long p2, unsigned long p3)
{
long ret;
+
+ if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST))
+ return tdx_kvm_hypercall(nr, p1, p2, p3, 0);
+
asm volatile(KVM_HYPERCALL
: "=a"(ret)
: "a"(nr), "b"(p1), "c"(p2), "d"(p3)
@@ -144,6 +94,10 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
unsigned long p4)
{
long ret;
+
+ if (cpu_feature_enabled(X86_FEATURE_TDX_GUEST))
+ return tdx_kvm_hypercall(nr, p1, p2, p3, p4);
+
asm volatile(KVM_HYPERCALL
: "=a"(ret)
: "a"(nr), "b"(p1), "c"(p2), "d"(p3), "S"(p4)
@@ -151,43 +105,75 @@ static inline long kvm_hypercall4(unsigned int nr, unsigned long p1,
return ret;
}
-static inline int kvm_para_available(void)
+static inline long kvm_sev_hypercall3(unsigned int nr, unsigned long p1,
+ unsigned long p2, unsigned long p3)
{
- unsigned int eax, ebx, ecx, edx;
- char signature[13];
+ long ret;
- cpuid(KVM_CPUID_SIGNATURE, &eax, &ebx, &ecx, &edx);
- memcpy(signature + 0, &ebx, 4);
- memcpy(signature + 4, &ecx, 4);
- memcpy(signature + 8, &edx, 4);
- signature[12] = 0;
+ asm volatile("vmmcall"
+ : "=a"(ret)
+ : "a"(nr), "b"(p1), "c"(p2), "d"(p3)
+ : "memory");
+ return ret;
+}
- if (strcmp(signature, "KVMKVMKVM") == 0)
- return 1;
+#ifdef CONFIG_KVM_GUEST
+void kvmclock_init(void);
+void kvmclock_disable(void);
+bool kvm_para_available(void);
+unsigned int kvm_arch_para_features(void);
+unsigned int kvm_arch_para_hints(void);
+void kvm_async_pf_task_wait_schedule(u32 token);
+void kvm_async_pf_task_wake(u32 token);
+u32 kvm_read_and_reset_apf_flags(void);
+bool __kvm_handle_async_pf(struct pt_regs *regs, u32 token);
- return 0;
+DECLARE_STATIC_KEY_FALSE(kvm_async_pf_enabled);
+
+static __always_inline bool kvm_handle_async_pf(struct pt_regs *regs, u32 token)
+{
+ if (static_branch_unlikely(&kvm_async_pf_enabled))
+ return __kvm_handle_async_pf(regs, token);
+ else
+ return false;
}
-static inline unsigned int kvm_arch_para_features(void)
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+void __init kvm_spinlock_init(void);
+#else /* !CONFIG_PARAVIRT_SPINLOCKS */
+static inline void kvm_spinlock_init(void)
{
- return cpuid_eax(KVM_CPUID_FEATURES);
}
+#endif /* CONFIG_PARAVIRT_SPINLOCKS */
-#ifdef CONFIG_KVM_GUEST
-void __init kvm_guest_init(void);
-void kvm_async_pf_task_wait(u32 token);
-void kvm_async_pf_task_wake(u32 token);
-u32 kvm_read_and_reset_pf_reason(void);
-#else
-#define kvm_guest_init() do { } while (0)
-#define kvm_async_pf_task_wait(T) do {} while(0)
+#else /* CONFIG_KVM_GUEST */
+#define kvm_async_pf_task_wait_schedule(T) do {} while(0)
#define kvm_async_pf_task_wake(T) do {} while(0)
-static inline u32 kvm_read_and_reset_pf_reason(void)
+
+static inline bool kvm_para_available(void)
+{
+ return false;
+}
+
+static inline unsigned int kvm_arch_para_features(void)
+{
+ return 0;
+}
+
+static inline unsigned int kvm_arch_para_hints(void)
+{
+ return 0;
+}
+
+static inline u32 kvm_read_and_reset_apf_flags(void)
{
return 0;
}
-#endif
-#endif /* __KERNEL__ */
+static __always_inline bool kvm_handle_async_pf(struct pt_regs *regs, u32 token)
+{
+ return false;
+}
+#endif
#endif /* _ASM_X86_KVM_PARA_H */
diff --git a/arch/x86/include/asm/kvm_types.h b/arch/x86/include/asm/kvm_types.h
new file mode 100644
index 000000000000..08f1b57d3b62
--- /dev/null
+++ b/arch/x86/include/asm/kvm_types.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_KVM_TYPES_H
+#define _ASM_X86_KVM_TYPES_H
+
+#define KVM_ARCH_NR_OBJS_PER_MEMORY_CACHE 40
+
+#endif /* _ASM_X86_KVM_TYPES_H */
diff --git a/arch/x86/include/asm/kvm_vcpu_regs.h b/arch/x86/include/asm/kvm_vcpu_regs.h
new file mode 100644
index 000000000000..1af2cb59233b
--- /dev/null
+++ b/arch/x86/include/asm/kvm_vcpu_regs.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_KVM_VCPU_REGS_H
+#define _ASM_X86_KVM_VCPU_REGS_H
+
+#define __VCPU_REGS_RAX 0
+#define __VCPU_REGS_RCX 1
+#define __VCPU_REGS_RDX 2
+#define __VCPU_REGS_RBX 3
+#define __VCPU_REGS_RSP 4
+#define __VCPU_REGS_RBP 5
+#define __VCPU_REGS_RSI 6
+#define __VCPU_REGS_RDI 7
+
+#ifdef CONFIG_X86_64
+#define __VCPU_REGS_R8 8
+#define __VCPU_REGS_R9 9
+#define __VCPU_REGS_R10 10
+#define __VCPU_REGS_R11 11
+#define __VCPU_REGS_R12 12
+#define __VCPU_REGS_R13 13
+#define __VCPU_REGS_R14 14
+#define __VCPU_REGS_R15 15
+#endif
+
+#endif /* _ASM_X86_KVM_VCPU_REGS_H */
diff --git a/arch/x86/include/asm/kvmclock.h b/arch/x86/include/asm/kvmclock.h
new file mode 100644
index 000000000000..511b35069187
--- /dev/null
+++ b/arch/x86/include/asm/kvmclock.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_KVM_CLOCK_H
+#define _ASM_X86_KVM_CLOCK_H
+
+#include <linux/percpu.h>
+
+extern struct clocksource kvm_clock;
+
+DECLARE_PER_CPU(struct pvclock_vsyscall_time_info *, hv_clock_per_cpu);
+
+static __always_inline struct pvclock_vcpu_time_info *this_cpu_pvti(void)
+{
+ return &this_cpu_read(hv_clock_per_cpu)->pvti;
+}
+
+static inline struct pvclock_vsyscall_time_info *this_cpu_hvclock(void)
+{
+ return this_cpu_read(hv_clock_per_cpu);
+}
+
+#endif /* _ASM_X86_KVM_CLOCK_H */
diff --git a/arch/x86/include/asm/lguest.h b/arch/x86/include/asm/lguest.h
deleted file mode 100644
index 0d97deba1e35..000000000000
--- a/arch/x86/include/asm/lguest.h
+++ /dev/null
@@ -1,99 +0,0 @@
-#ifndef _ASM_X86_LGUEST_H
-#define _ASM_X86_LGUEST_H
-
-#define GDT_ENTRY_LGUEST_CS 10
-#define GDT_ENTRY_LGUEST_DS 11
-#define LGUEST_CS (GDT_ENTRY_LGUEST_CS * 8)
-#define LGUEST_DS (GDT_ENTRY_LGUEST_DS * 8)
-
-#ifndef __ASSEMBLY__
-#include <asm/desc.h>
-
-#define GUEST_PL 1
-
-/* Every guest maps the core switcher code. */
-#define SHARED_SWITCHER_PAGES \
- DIV_ROUND_UP(end_switcher_text - start_switcher_text, PAGE_SIZE)
-/* Pages for switcher itself, then two pages per cpu */
-#define TOTAL_SWITCHER_PAGES (SHARED_SWITCHER_PAGES + 2 * nr_cpu_ids)
-
-/* We map at -4M (-2M for PAE) for ease of mapping (one PTE page). */
-#ifdef CONFIG_X86_PAE
-#define SWITCHER_ADDR 0xFFE00000
-#else
-#define SWITCHER_ADDR 0xFFC00000
-#endif
-
-/* Found in switcher.S */
-extern unsigned long default_idt_entries[];
-
-/* Declarations for definitions in lguest_guest.S */
-extern char lguest_noirq_start[], lguest_noirq_end[];
-extern const char lgstart_cli[], lgend_cli[];
-extern const char lgstart_sti[], lgend_sti[];
-extern const char lgstart_popf[], lgend_popf[];
-extern const char lgstart_pushf[], lgend_pushf[];
-extern const char lgstart_iret[], lgend_iret[];
-
-extern void lguest_iret(void);
-extern void lguest_init(void);
-
-struct lguest_regs {
- /* Manually saved part. */
- unsigned long eax, ebx, ecx, edx;
- unsigned long esi, edi, ebp;
- unsigned long gs;
- unsigned long fs, ds, es;
- unsigned long trapnum, errcode;
- /* Trap pushed part */
- unsigned long eip;
- unsigned long cs;
- unsigned long eflags;
- unsigned long esp;
- unsigned long ss;
-};
-
-/* This is a guest-specific page (mapped ro) into the guest. */
-struct lguest_ro_state {
- /* Host information we need to restore when we switch back. */
- u32 host_cr3;
- struct desc_ptr host_idt_desc;
- struct desc_ptr host_gdt_desc;
- u32 host_sp;
-
- /* Fields which are used when guest is running. */
- struct desc_ptr guest_idt_desc;
- struct desc_ptr guest_gdt_desc;
- struct x86_hw_tss guest_tss;
- struct desc_struct guest_idt[IDT_ENTRIES];
- struct desc_struct guest_gdt[GDT_ENTRIES];
-};
-
-struct lg_cpu_arch {
- /* The GDT entries copied into lguest_ro_state when running. */
- struct desc_struct gdt[GDT_ENTRIES];
-
- /* The IDT entries: some copied into lguest_ro_state when running. */
- struct desc_struct idt[IDT_ENTRIES];
-
- /* The address of the last guest-visible pagefault (ie. cr2). */
- unsigned long last_pagefault;
-};
-
-static inline void lguest_set_ts(void)
-{
- u32 cr0;
-
- cr0 = read_cr0();
- if (!(cr0 & 8))
- write_cr0(cr0 | 8);
-}
-
-/* Full 4G segment descriptors, suitable for CS and DS. */
-#define FULL_EXEC_SEGMENT \
- ((struct desc_struct)GDT_ENTRY_INIT(0xc09b, 0, 0xfffff))
-#define FULL_SEGMENT ((struct desc_struct)GDT_ENTRY_INIT(0xc093, 0, 0xfffff))
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_X86_LGUEST_H */
diff --git a/arch/x86/include/asm/lguest_hcall.h b/arch/x86/include/asm/lguest_hcall.h
deleted file mode 100644
index b60f2924c413..000000000000
--- a/arch/x86/include/asm/lguest_hcall.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/* Architecture specific portion of the lguest hypercalls */
-#ifndef _ASM_X86_LGUEST_HCALL_H
-#define _ASM_X86_LGUEST_HCALL_H
-
-#define LHCALL_FLUSH_ASYNC 0
-#define LHCALL_LGUEST_INIT 1
-#define LHCALL_SHUTDOWN 2
-#define LHCALL_NEW_PGTABLE 4
-#define LHCALL_FLUSH_TLB 5
-#define LHCALL_LOAD_IDT_ENTRY 6
-#define LHCALL_SET_STACK 7
-#define LHCALL_TS 8
-#define LHCALL_SET_CLOCKEVENT 9
-#define LHCALL_HALT 10
-#define LHCALL_SET_PMD 13
-#define LHCALL_SET_PTE 14
-#define LHCALL_SET_PGD 15
-#define LHCALL_LOAD_TLS 16
-#define LHCALL_NOTIFY 17
-#define LHCALL_LOAD_GDT_ENTRY 18
-#define LHCALL_SEND_INTERRUPTS 19
-
-#define LGUEST_TRAP_ENTRY 0x1F
-
-/* Argument number 3 to LHCALL_LGUEST_SHUTDOWN */
-#define LGUEST_SHUTDOWN_POWEROFF 1
-#define LGUEST_SHUTDOWN_RESTART 2
-
-#ifndef __ASSEMBLY__
-#include <asm/hw_irq.h>
-
-/*G:030
- * But first, how does our Guest contact the Host to ask for privileged
- * operations? There are two ways: the direct way is to make a "hypercall",
- * to make requests of the Host Itself.
- *
- * Our hypercall mechanism uses the highest unused trap code (traps 32 and
- * above are used by real hardware interrupts). Seventeen hypercalls are
- * available: the hypercall number is put in the %eax register, and the
- * arguments (when required) are placed in %ebx, %ecx, %edx and %esi.
- * If a return value makes sense, it's returned in %eax.
- *
- * Grossly invalid calls result in Sudden Death at the hands of the vengeful
- * Host, rather than returning failure. This reflects Winston Churchill's
- * definition of a gentleman: "someone who is only rude intentionally".
- */
-static inline unsigned long
-hcall(unsigned long call,
- unsigned long arg1, unsigned long arg2, unsigned long arg3,
- unsigned long arg4)
-{
- /* "int" is the Intel instruction to trigger a trap. */
- asm volatile("int $" __stringify(LGUEST_TRAP_ENTRY)
- /* The call in %eax (aka "a") might be overwritten */
- : "=a"(call)
- /* The arguments are in %eax, %ebx, %ecx, %edx & %esi */
- : "a"(call), "b"(arg1), "c"(arg2), "d"(arg3), "S"(arg4)
- /* "memory" means this might write somewhere in memory.
- * This isn't true for all calls, but it's safe to tell
- * gcc that it might happen so it doesn't get clever. */
- : "memory");
- return call;
-}
-
-/* Can't use our min() macro here: needs to be a constant */
-#define LGUEST_IRQS (NR_IRQS < 32 ? NR_IRQS: 32)
-
-#define LHCALL_RING_SIZE 64
-struct hcall_args {
- /* These map directly onto eax/ebx/ecx/edx/esi in struct lguest_regs */
- unsigned long arg0, arg1, arg2, arg3, arg4;
-};
-
-#endif /* !__ASSEMBLY__ */
-#endif /* _ASM_X86_LGUEST_HCALL_H */
diff --git a/arch/x86/include/asm/linkage.h b/arch/x86/include/asm/linkage.h
index 12d55e773eb6..0953aa32a324 100644
--- a/arch/x86/include/asm/linkage.h
+++ b/arch/x86/include/asm/linkage.h
@@ -1,66 +1,136 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_LINKAGE_H
#define _ASM_X86_LINKAGE_H
#include <linux/stringify.h>
+#include <asm/ibt.h>
#undef notrace
#define notrace __attribute__((no_instrument_function))
#ifdef CONFIG_X86_32
#define asmlinkage CPP_ASMLINKAGE __attribute__((regparm(0)))
-/*
- * For 32-bit UML - mark functions implemented in assembly that use
- * regparm input parameters:
- */
-#define asmregparm __attribute__((regparm(3)))
+#endif /* CONFIG_X86_32 */
-/*
- * Make sure the compiler doesn't do anything stupid with the
- * arguments on the stack - they are owned by the *caller*, not
- * the callee. This just fools gcc into not spilling into them,
- * and keeps it from doing tailcall recursion and/or using the
- * stack slots for temporaries, since they are live and "used"
- * all the way to the end of the function.
- *
- * NOTE! On x86-64, all the arguments are in registers, so this
- * only matters on a 32-bit kernel.
- */
-#define asmlinkage_protect(n, ret, args...) \
- __asmlinkage_protect##n(ret, ##args)
-#define __asmlinkage_protect_n(ret, args...) \
- __asm__ __volatile__ ("" : "=r" (ret) : "0" (ret), ##args)
-#define __asmlinkage_protect0(ret) \
- __asmlinkage_protect_n(ret)
-#define __asmlinkage_protect1(ret, arg1) \
- __asmlinkage_protect_n(ret, "g" (arg1))
-#define __asmlinkage_protect2(ret, arg1, arg2) \
- __asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2))
-#define __asmlinkage_protect3(ret, arg1, arg2, arg3) \
- __asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3))
-#define __asmlinkage_protect4(ret, arg1, arg2, arg3, arg4) \
- __asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3), \
- "g" (arg4))
-#define __asmlinkage_protect5(ret, arg1, arg2, arg3, arg4, arg5) \
- __asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3), \
- "g" (arg4), "g" (arg5))
-#define __asmlinkage_protect6(ret, arg1, arg2, arg3, arg4, arg5, arg6) \
- __asmlinkage_protect_n(ret, "g" (arg1), "g" (arg2), "g" (arg3), \
- "g" (arg4), "g" (arg5), "g" (arg6))
+#define __ALIGN .balign CONFIG_FUNCTION_ALIGNMENT, 0x90;
+#define __ALIGN_STR __stringify(__ALIGN)
-#endif /* CONFIG_X86_32 */
+#if defined(CONFIG_CALL_PADDING) && !defined(__DISABLE_EXPORTS) && !defined(BUILD_VDSO)
+#define FUNCTION_PADDING .skip CONFIG_FUNCTION_ALIGNMENT, 0x90;
+#else
+#define FUNCTION_PADDING
+#endif
+
+#if (CONFIG_FUNCTION_ALIGNMENT > 8) && !defined(__DISABLE_EXPORTS) && !defined(BULID_VDSO)
+# define __FUNC_ALIGN __ALIGN; FUNCTION_PADDING
+#else
+# define __FUNC_ALIGN __ALIGN
+#endif
+
+#define ASM_FUNC_ALIGN __stringify(__FUNC_ALIGN)
+#define SYM_F_ALIGN __FUNC_ALIGN
#ifdef __ASSEMBLY__
-#define GLOBAL(name) \
- .globl name; \
- name:
+#if defined(CONFIG_RETHUNK) && !defined(__DISABLE_EXPORTS) && !defined(BUILD_VDSO)
+#define RET jmp __x86_return_thunk
+#else /* CONFIG_RETPOLINE */
+#ifdef CONFIG_SLS
+#define RET ret; int3
+#else
+#define RET ret
+#endif
+#endif /* CONFIG_RETPOLINE */
+
+#else /* __ASSEMBLY__ */
-#if defined(CONFIG_X86_64) || defined(CONFIG_X86_ALIGNMENT_16)
-#define __ALIGN .p2align 4, 0x90
-#define __ALIGN_STR __stringify(__ALIGN)
+#if defined(CONFIG_RETHUNK) && !defined(__DISABLE_EXPORTS) && !defined(BUILD_VDSO)
+#define ASM_RET "jmp __x86_return_thunk\n\t"
+#else /* CONFIG_RETPOLINE */
+#ifdef CONFIG_SLS
+#define ASM_RET "ret; int3\n\t"
+#else
+#define ASM_RET "ret\n\t"
#endif
+#endif /* CONFIG_RETPOLINE */
#endif /* __ASSEMBLY__ */
+/*
+ * Depending on -fpatchable-function-entry=N,N usage (CONFIG_CALL_PADDING) the
+ * CFI symbol layout changes.
+ *
+ * Without CALL_THUNKS:
+ *
+ * .align FUNCTION_ALIGNMENT
+ * __cfi_##name:
+ * .skip FUNCTION_PADDING, 0x90
+ * .byte 0xb8
+ * .long __kcfi_typeid_##name
+ * name:
+ *
+ * With CALL_THUNKS:
+ *
+ * .align FUNCTION_ALIGNMENT
+ * __cfi_##name:
+ * .byte 0xb8
+ * .long __kcfi_typeid_##name
+ * .skip FUNCTION_PADDING, 0x90
+ * name:
+ *
+ * In both cases the whole thing is FUNCTION_ALIGNMENT aligned and sized.
+ */
+
+#ifdef CONFIG_CALL_PADDING
+#define CFI_PRE_PADDING
+#define CFI_POST_PADDING .skip CONFIG_FUNCTION_PADDING_BYTES, 0x90;
+#else
+#define CFI_PRE_PADDING .skip CONFIG_FUNCTION_PADDING_BYTES, 0x90;
+#define CFI_POST_PADDING
+#endif
+
+#define __CFI_TYPE(name) \
+ SYM_START(__cfi_##name, SYM_L_LOCAL, SYM_A_NONE) \
+ CFI_PRE_PADDING \
+ .byte 0xb8 ASM_NL \
+ .long __kcfi_typeid_##name ASM_NL \
+ CFI_POST_PADDING \
+ SYM_FUNC_END(__cfi_##name)
+
+/* SYM_TYPED_FUNC_START -- use for indirectly called globals, w/ CFI type */
+#define SYM_TYPED_FUNC_START(name) \
+ SYM_TYPED_START(name, SYM_L_GLOBAL, SYM_F_ALIGN) \
+ ENDBR
+
+/* SYM_FUNC_START -- use for global functions */
+#define SYM_FUNC_START(name) \
+ SYM_START(name, SYM_L_GLOBAL, SYM_F_ALIGN) \
+ ENDBR
+
+/* SYM_FUNC_START_NOALIGN -- use for global functions, w/o alignment */
+#define SYM_FUNC_START_NOALIGN(name) \
+ SYM_START(name, SYM_L_GLOBAL, SYM_A_NONE) \
+ ENDBR
+
+/* SYM_FUNC_START_LOCAL -- use for local functions */
+#define SYM_FUNC_START_LOCAL(name) \
+ SYM_START(name, SYM_L_LOCAL, SYM_F_ALIGN) \
+ ENDBR
+
+/* SYM_FUNC_START_LOCAL_NOALIGN -- use for local functions, w/o alignment */
+#define SYM_FUNC_START_LOCAL_NOALIGN(name) \
+ SYM_START(name, SYM_L_LOCAL, SYM_A_NONE) \
+ ENDBR
+
+/* SYM_FUNC_START_WEAK -- use for weak functions */
+#define SYM_FUNC_START_WEAK(name) \
+ SYM_START(name, SYM_L_WEAK, SYM_F_ALIGN) \
+ ENDBR
+
+/* SYM_FUNC_START_WEAK_NOALIGN -- use for weak functions, w/o alignment */
+#define SYM_FUNC_START_WEAK_NOALIGN(name) \
+ SYM_START(name, SYM_L_WEAK, SYM_A_NONE) \
+ ENDBR
+
#endif /* _ASM_X86_LINKAGE_H */
diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
index 2e9972468a5d..56d4ef604b91 100644
--- a/arch/x86/include/asm/local.h
+++ b/arch/x86/include/asm/local.h
@@ -1,10 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_LOCAL_H
#define _ASM_X86_LOCAL_H
#include <linux/percpu.h>
-#include <asm/system.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/asm.h>
typedef struct {
@@ -51,14 +51,9 @@ static inline void local_sub(long i, local_t *l)
* true if the result is zero, or false for all
* other cases.
*/
-static inline int local_sub_and_test(long i, local_t *l)
+static inline bool local_sub_and_test(long i, local_t *l)
{
- unsigned char c;
-
- asm volatile(_ASM_SUB "%2,%0; sete %1"
- : "+m" (l->a.counter), "=qm" (c)
- : "ir" (i) : "memory");
- return c;
+ return GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, e, "er", i);
}
/**
@@ -69,14 +64,9 @@ static inline int local_sub_and_test(long i, local_t *l)
* returns true if the result is 0, or false for all other
* cases.
*/
-static inline int local_dec_and_test(local_t *l)
+static inline bool local_dec_and_test(local_t *l)
{
- unsigned char c;
-
- asm volatile(_ASM_DEC "%0; sete %1"
- : "+m" (l->a.counter), "=qm" (c)
- : : "memory");
- return c != 0;
+ return GEN_UNARY_RMWcc(_ASM_DEC, l->a.counter, e);
}
/**
@@ -87,14 +77,9 @@ static inline int local_dec_and_test(local_t *l)
* and returns true if the result is zero, or false for all
* other cases.
*/
-static inline int local_inc_and_test(local_t *l)
+static inline bool local_inc_and_test(local_t *l)
{
- unsigned char c;
-
- asm volatile(_ASM_INC "%0; sete %1"
- : "+m" (l->a.counter), "=qm" (c)
- : : "memory");
- return c != 0;
+ return GEN_UNARY_RMWcc(_ASM_INC, l->a.counter, e);
}
/**
@@ -106,14 +91,9 @@ static inline int local_inc_and_test(local_t *l)
* if the result is negative, or false when
* result is greater than or equal to zero.
*/
-static inline int local_add_negative(long i, local_t *l)
+static inline bool local_add_negative(long i, local_t *l)
{
- unsigned char c;
-
- asm volatile(_ASM_ADD "%2,%0; sets %1"
- : "+m" (l->a.counter), "=qm" (c)
- : "ir" (i) : "memory");
- return c;
+ return GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, s, "er", i);
}
/**
@@ -125,27 +105,11 @@ static inline int local_add_negative(long i, local_t *l)
*/
static inline long local_add_return(long i, local_t *l)
{
- long __i;
-#ifdef CONFIG_M386
- unsigned long flags;
- if (unlikely(boot_cpu_data.x86 <= 3))
- goto no_xadd;
-#endif
- /* Modern 486+ processor */
- __i = i;
+ long __i = i;
asm volatile(_ASM_XADD "%0, %1;"
: "+r" (i), "+m" (l->a.counter)
: : "memory");
return i + __i;
-
-#ifdef CONFIG_M386
-no_xadd: /* Legacy 386 processor */
- local_irq_save(flags);
- __i = local_read(l);
- local_set(l, i + __i);
- local_irq_restore(flags);
- return i + __i;
-#endif
}
static inline long local_sub_return(long i, local_t *l)
@@ -156,8 +120,17 @@ static inline long local_sub_return(long i, local_t *l)
#define local_inc_return(l) (local_add_return(1, l))
#define local_dec_return(l) (local_sub_return(1, l))
-#define local_cmpxchg(l, o, n) \
- (cmpxchg_local(&((l)->a.counter), (o), (n)))
+static inline long local_cmpxchg(local_t *l, long old, long new)
+{
+ return cmpxchg_local(&l->a.counter, old, new);
+}
+
+static inline bool local_try_cmpxchg(local_t *l, long *old, long new)
+{
+ typeof(l->a.counter) *__old = (typeof(l->a.counter) *) old;
+ return try_cmpxchg_local(&l->a.counter, __old, new);
+}
+
/* Always has a lock prefix */
#define local_xchg(l, n) (xchg(&((l)->a.counter), (n)))
diff --git a/arch/x86/include/asm/local64.h b/arch/x86/include/asm/local64.h
deleted file mode 100644
index 36c93b5cc239..000000000000
--- a/arch/x86/include/asm/local64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/local64.h>
diff --git a/arch/x86/include/asm/mach_timer.h b/arch/x86/include/asm/mach_timer.h
index 853728519ae9..044daf6fb8f6 100644
--- a/arch/x86/include/asm/mach_timer.h
+++ b/arch/x86/include/asm/mach_timer.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Machine specific calibrate_tsc() for generic.
* Split out from timer_tsc.c by Osamu Tomita <tomita@cinet.co.jp>
@@ -15,7 +16,7 @@
#define CALIBRATE_TIME_MSEC 30 /* 30 msecs */
#define CALIBRATE_LATCH \
- ((CLOCK_TICK_RATE * CALIBRATE_TIME_MSEC + 1000/2)/1000)
+ ((PIT_TICK_RATE * CALIBRATE_TIME_MSEC + 1000/2)/1000)
static inline void mach_prepare_counter(void)
{
diff --git a/arch/x86/include/asm/mach_traps.h b/arch/x86/include/asm/mach_traps.h
index 72a8b52e7dfd..e39a517467cd 100644
--- a/arch/x86/include/asm/mach_traps.h
+++ b/arch/x86/include/asm/mach_traps.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Machine specific NMI handling for generic.
* Split out from traps.c by Osamu Tomita <tomita@cinet.co.jp>
@@ -17,7 +18,7 @@
#define NMI_REASON_CLEAR_IOCHK 0x08
#define NMI_REASON_CLEAR_MASK 0x0f
-static inline unsigned char get_nmi_reason(void)
+static inline unsigned char default_get_nmi_reason(void)
{
return inb(NMI_REASON_PORT);
}
diff --git a/arch/x86/include/asm/math_emu.h b/arch/x86/include/asm/math_emu.h
index 031f6266f425..3c42743083ed 100644
--- a/arch/x86/include/asm/math_emu.h
+++ b/arch/x86/include/asm/math_emu.h
@@ -1,8 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MATH_EMU_H
#define _ASM_X86_MATH_EMU_H
#include <asm/ptrace.h>
-#include <asm/vm86.h>
/* This structure matches the layout of the data saved to the stack
following a device-not-present interrupt, part of it saved
@@ -10,9 +10,6 @@
*/
struct math_emu_info {
long ___orig_eip;
- union {
- struct pt_regs *regs;
- struct kernel_vm86_regs *vm86;
- };
+ struct pt_regs *regs;
};
#endif /* _ASM_X86_MATH_EMU_H */
diff --git a/arch/x86/include/asm/mc146818rtc.h b/arch/x86/include/asm/mc146818rtc.h
index 01fdf5674e24..6115bb3d5795 100644
--- a/arch/x86/include/asm/mc146818rtc.h
+++ b/arch/x86/include/asm/mc146818rtc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Machine dependent access functions for RTC registers.
*/
@@ -5,16 +6,14 @@
#define _ASM_X86_MC146818RTC_H
#include <asm/io.h>
-#include <asm/system.h>
#include <asm/processor.h>
-#include <linux/mc146818rtc.h>
#ifndef RTC_PORT
#define RTC_PORT(x) (0x70 + (x))
#define RTC_ALWAYS_BCD 1 /* RTC operates in binary mode */
#endif
-#if defined(CONFIG_X86_32) && defined(__HAVE_ARCH_CMPXCHG)
+#if defined(CONFIG_X86_32)
/*
* This lock provides nmi access to the CMOS/RTC registers. It has some
* special properties. It is owned by a CPU and stores the index register
@@ -81,8 +80,8 @@ static inline unsigned char current_lock_cmos_reg(void)
#else
#define lock_cmos_prefix(reg) do {} while (0)
#define lock_cmos_suffix(reg) do {} while (0)
-#define lock_cmos(reg)
-#define unlock_cmos()
+#define lock_cmos(reg) do { } while (0)
+#define unlock_cmos() do { } while (0)
#define do_i_have_lock_cmos() 0
#define current_lock_cmos_reg() 0
#endif
@@ -96,8 +95,8 @@ static inline unsigned char current_lock_cmos_reg(void)
unsigned char rtc_cmos_read(unsigned char addr);
void rtc_cmos_write(unsigned char val, unsigned char addr);
-extern int mach_set_rtc_mmss(unsigned long nowtime);
-extern unsigned long mach_get_cmos_time(void);
+extern int mach_set_cmos_time(const struct timespec64 *now);
+extern void mach_get_cmos_time(struct timespec64 *now);
#define RTC_IRQ 8
diff --git a/arch/x86/include/asm/mca.h b/arch/x86/include/asm/mca.h
deleted file mode 100644
index eedbb6cc1efb..000000000000
--- a/arch/x86/include/asm/mca.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* -*- mode: c; c-basic-offset: 8 -*- */
-
-/* Platform specific MCA defines */
-#ifndef _ASM_X86_MCA_H
-#define _ASM_X86_MCA_H
-
-/* Maximal number of MCA slots - actually, some machines have less, but
- * they all have sufficient number of POS registers to cover 8.
- */
-#define MCA_MAX_SLOT_NR 8
-
-/* Most machines have only one MCA bus. The only multiple bus machines
- * I know have at most two */
-#define MAX_MCA_BUSSES 2
-
-#define MCA_PRIMARY_BUS 0
-#define MCA_SECONDARY_BUS 1
-
-/* Dummy slot numbers on primary MCA for integrated functions */
-#define MCA_INTEGSCSI (MCA_MAX_SLOT_NR)
-#define MCA_INTEGVIDEO (MCA_MAX_SLOT_NR+1)
-#define MCA_MOTHERBOARD (MCA_MAX_SLOT_NR+2)
-
-/* Dummy POS values for integrated functions */
-#define MCA_DUMMY_POS_START 0x10000
-#define MCA_INTEGSCSI_POS (MCA_DUMMY_POS_START+1)
-#define MCA_INTEGVIDEO_POS (MCA_DUMMY_POS_START+2)
-#define MCA_MOTHERBOARD_POS (MCA_DUMMY_POS_START+3)
-
-/* MCA registers */
-
-#define MCA_MOTHERBOARD_SETUP_REG 0x94
-#define MCA_ADAPTER_SETUP_REG 0x96
-#define MCA_POS_REG(n) (0x100+(n))
-
-#define MCA_ENABLED 0x01 /* POS 2, set if adapter enabled */
-
-/* Max number of adapters, including both slots and various integrated
- * things.
- */
-#define MCA_NUMADAPTERS (MCA_MAX_SLOT_NR+3)
-
-#endif /* _ASM_X86_MCA_H */
diff --git a/arch/x86/include/asm/mca_dma.h b/arch/x86/include/asm/mca_dma.h
deleted file mode 100644
index 45271aef82dd..000000000000
--- a/arch/x86/include/asm/mca_dma.h
+++ /dev/null
@@ -1,201 +0,0 @@
-#ifndef _ASM_X86_MCA_DMA_H
-#define _ASM_X86_MCA_DMA_H
-
-#include <asm/io.h>
-#include <linux/ioport.h>
-
-/*
- * Microchannel specific DMA stuff. DMA on an MCA machine is fairly similar to
- * standard PC dma, but it certainly has its quirks. DMA register addresses
- * are in a different place and there are some added functions. Most of this
- * should be pretty obvious on inspection. Note that the user must divide
- * count by 2 when using 16-bit dma; that is not handled by these functions.
- *
- * Ramen Noodles are yummy.
- *
- * 1998 Tymm Twillman <tymm@computer.org>
- */
-
-/*
- * Registers that are used by the DMA controller; FN is the function register
- * (tell the controller what to do) and EXE is the execution register (how
- * to do it)
- */
-
-#define MCA_DMA_REG_FN 0x18
-#define MCA_DMA_REG_EXE 0x1A
-
-/*
- * Functions that the DMA controller can do
- */
-
-#define MCA_DMA_FN_SET_IO 0x00
-#define MCA_DMA_FN_SET_ADDR 0x20
-#define MCA_DMA_FN_GET_ADDR 0x30
-#define MCA_DMA_FN_SET_COUNT 0x40
-#define MCA_DMA_FN_GET_COUNT 0x50
-#define MCA_DMA_FN_GET_STATUS 0x60
-#define MCA_DMA_FN_SET_MODE 0x70
-#define MCA_DMA_FN_SET_ARBUS 0x80
-#define MCA_DMA_FN_MASK 0x90
-#define MCA_DMA_FN_RESET_MASK 0xA0
-#define MCA_DMA_FN_MASTER_CLEAR 0xD0
-
-/*
- * Modes (used by setting MCA_DMA_FN_MODE in the function register)
- *
- * Note that the MODE_READ is read from memory (write to device), and
- * MODE_WRITE is vice-versa.
- */
-
-#define MCA_DMA_MODE_XFER 0x04 /* read by default */
-#define MCA_DMA_MODE_READ 0x04 /* same as XFER */
-#define MCA_DMA_MODE_WRITE 0x08 /* OR with MODE_XFER to use */
-#define MCA_DMA_MODE_IO 0x01 /* DMA from IO register */
-#define MCA_DMA_MODE_16 0x40 /* 16 bit xfers */
-
-
-/**
- * mca_enable_dma - channel to enable DMA on
- * @dmanr: DMA channel
- *
- * Enable the MCA bus DMA on a channel. This can be called from
- * IRQ context.
- */
-
-static inline void mca_enable_dma(unsigned int dmanr)
-{
- outb(MCA_DMA_FN_RESET_MASK | dmanr, MCA_DMA_REG_FN);
-}
-
-/**
- * mca_disble_dma - channel to disable DMA on
- * @dmanr: DMA channel
- *
- * Enable the MCA bus DMA on a channel. This can be called from
- * IRQ context.
- */
-
-static inline void mca_disable_dma(unsigned int dmanr)
-{
- outb(MCA_DMA_FN_MASK | dmanr, MCA_DMA_REG_FN);
-}
-
-/**
- * mca_set_dma_addr - load a 24bit DMA address
- * @dmanr: DMA channel
- * @a: 24bit bus address
- *
- * Load the address register in the DMA controller. This has a 24bit
- * limitation (16Mb).
- */
-
-static inline void mca_set_dma_addr(unsigned int dmanr, unsigned int a)
-{
- outb(MCA_DMA_FN_SET_ADDR | dmanr, MCA_DMA_REG_FN);
- outb(a & 0xff, MCA_DMA_REG_EXE);
- outb((a >> 8) & 0xff, MCA_DMA_REG_EXE);
- outb((a >> 16) & 0xff, MCA_DMA_REG_EXE);
-}
-
-/**
- * mca_get_dma_addr - load a 24bit DMA address
- * @dmanr: DMA channel
- *
- * Read the address register in the DMA controller. This has a 24bit
- * limitation (16Mb). The return is a bus address.
- */
-
-static inline unsigned int mca_get_dma_addr(unsigned int dmanr)
-{
- unsigned int addr;
-
- outb(MCA_DMA_FN_GET_ADDR | dmanr, MCA_DMA_REG_FN);
- addr = inb(MCA_DMA_REG_EXE);
- addr |= inb(MCA_DMA_REG_EXE) << 8;
- addr |= inb(MCA_DMA_REG_EXE) << 16;
-
- return addr;
-}
-
-/**
- * mca_set_dma_count - load a 16bit transfer count
- * @dmanr: DMA channel
- * @count: count
- *
- * Set the DMA count for this channel. This can be up to 64Kbytes.
- * Setting a count of zero will not do what you expect.
- */
-
-static inline void mca_set_dma_count(unsigned int dmanr, unsigned int count)
-{
- count--; /* transfers one more than count -- correct for this */
-
- outb(MCA_DMA_FN_SET_COUNT | dmanr, MCA_DMA_REG_FN);
- outb(count & 0xff, MCA_DMA_REG_EXE);
- outb((count >> 8) & 0xff, MCA_DMA_REG_EXE);
-}
-
-/**
- * mca_get_dma_residue - get the remaining bytes to transfer
- * @dmanr: DMA channel
- *
- * This function returns the number of bytes left to transfer
- * on this DMA channel.
- */
-
-static inline unsigned int mca_get_dma_residue(unsigned int dmanr)
-{
- unsigned short count;
-
- outb(MCA_DMA_FN_GET_COUNT | dmanr, MCA_DMA_REG_FN);
- count = 1 + inb(MCA_DMA_REG_EXE);
- count += inb(MCA_DMA_REG_EXE) << 8;
-
- return count;
-}
-
-/**
- * mca_set_dma_io - set the port for an I/O transfer
- * @dmanr: DMA channel
- * @io_addr: an I/O port number
- *
- * Unlike the ISA bus DMA controllers the DMA on MCA bus can transfer
- * with an I/O port target.
- */
-
-static inline void mca_set_dma_io(unsigned int dmanr, unsigned int io_addr)
-{
- /*
- * DMA from a port address -- set the io address
- */
-
- outb(MCA_DMA_FN_SET_IO | dmanr, MCA_DMA_REG_FN);
- outb(io_addr & 0xff, MCA_DMA_REG_EXE);
- outb((io_addr >> 8) & 0xff, MCA_DMA_REG_EXE);
-}
-
-/**
- * mca_set_dma_mode - set the DMA mode
- * @dmanr: DMA channel
- * @mode: mode to set
- *
- * The DMA controller supports several modes. The mode values you can
- * set are-
- *
- * %MCA_DMA_MODE_READ when reading from the DMA device.
- *
- * %MCA_DMA_MODE_WRITE to writing to the DMA device.
- *
- * %MCA_DMA_MODE_IO to do DMA to or from an I/O port.
- *
- * %MCA_DMA_MODE_16 to do 16bit transfers.
- */
-
-static inline void mca_set_dma_mode(unsigned int dmanr, unsigned int mode)
-{
- outb(MCA_DMA_FN_SET_MODE | dmanr, MCA_DMA_REG_FN);
- outb(mode, MCA_DMA_REG_EXE);
-}
-
-#endif /* _ASM_X86_MCA_DMA_H */
diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index eb16e94ae04f..9646ed6e8c0b 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -1,77 +1,161 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MCE_H
#define _ASM_X86_MCE_H
-#include <linux/types.h>
-#include <asm/ioctls.h>
+#include <uapi/asm/mce.h>
/*
* Machine Check support for x86
*/
+/* MCG_CAP register defines */
#define MCG_BANKCNT_MASK 0xff /* Number of Banks */
-#define MCG_CTL_P (1ULL<<8) /* MCG_CTL register available */
-#define MCG_EXT_P (1ULL<<9) /* Extended registers available */
-#define MCG_CMCI_P (1ULL<<10) /* CMCI supported */
+#define MCG_CTL_P BIT_ULL(8) /* MCG_CTL register available */
+#define MCG_EXT_P BIT_ULL(9) /* Extended registers available */
+#define MCG_CMCI_P BIT_ULL(10) /* CMCI supported */
#define MCG_EXT_CNT_MASK 0xff0000 /* Number of Extended registers */
#define MCG_EXT_CNT_SHIFT 16
#define MCG_EXT_CNT(c) (((c) & MCG_EXT_CNT_MASK) >> MCG_EXT_CNT_SHIFT)
-#define MCG_SER_P (1ULL<<24) /* MCA recovery/new status bits */
-
-#define MCG_STATUS_RIPV (1ULL<<0) /* restart ip valid */
-#define MCG_STATUS_EIPV (1ULL<<1) /* ip points to correct instruction */
-#define MCG_STATUS_MCIP (1ULL<<2) /* machine check in progress */
-
-#define MCI_STATUS_VAL (1ULL<<63) /* valid error */
-#define MCI_STATUS_OVER (1ULL<<62) /* previous errors lost */
-#define MCI_STATUS_UC (1ULL<<61) /* uncorrected error */
-#define MCI_STATUS_EN (1ULL<<60) /* error enabled */
-#define MCI_STATUS_MISCV (1ULL<<59) /* misc error reg. valid */
-#define MCI_STATUS_ADDRV (1ULL<<58) /* addr reg. valid */
-#define MCI_STATUS_PCC (1ULL<<57) /* processor context corrupt */
-#define MCI_STATUS_S (1ULL<<56) /* Signaled machine check */
-#define MCI_STATUS_AR (1ULL<<55) /* Action required */
-
-/* MISC register defines */
-#define MCM_ADDR_SEGOFF 0 /* segment offset */
-#define MCM_ADDR_LINEAR 1 /* linear address */
-#define MCM_ADDR_PHYS 2 /* physical address */
-#define MCM_ADDR_MEM 3 /* memory address */
-#define MCM_ADDR_GENERIC 7 /* generic */
+#define MCG_SER_P BIT_ULL(24) /* MCA recovery/new status bits */
+#define MCG_ELOG_P BIT_ULL(26) /* Extended error log supported */
+#define MCG_LMCE_P BIT_ULL(27) /* Local machine check supported */
+
+/* MCG_STATUS register defines */
+#define MCG_STATUS_RIPV BIT_ULL(0) /* restart ip valid */
+#define MCG_STATUS_EIPV BIT_ULL(1) /* ip points to correct instruction */
+#define MCG_STATUS_MCIP BIT_ULL(2) /* machine check in progress */
+#define MCG_STATUS_LMCES BIT_ULL(3) /* LMCE signaled */
+
+/* MCG_EXT_CTL register defines */
+#define MCG_EXT_CTL_LMCE_EN BIT_ULL(0) /* Enable LMCE */
+
+/* MCi_STATUS register defines */
+#define MCI_STATUS_VAL BIT_ULL(63) /* valid error */
+#define MCI_STATUS_OVER BIT_ULL(62) /* previous errors lost */
+#define MCI_STATUS_UC BIT_ULL(61) /* uncorrected error */
+#define MCI_STATUS_EN BIT_ULL(60) /* error enabled */
+#define MCI_STATUS_MISCV BIT_ULL(59) /* misc error reg. valid */
+#define MCI_STATUS_ADDRV BIT_ULL(58) /* addr reg. valid */
+#define MCI_STATUS_PCC BIT_ULL(57) /* processor context corrupt */
+#define MCI_STATUS_S BIT_ULL(56) /* Signaled machine check */
+#define MCI_STATUS_AR BIT_ULL(55) /* Action required */
+#define MCI_STATUS_CEC_SHIFT 38 /* Corrected Error Count */
+#define MCI_STATUS_CEC_MASK GENMASK_ULL(52,38)
+#define MCI_STATUS_CEC(c) (((c) & MCI_STATUS_CEC_MASK) >> MCI_STATUS_CEC_SHIFT)
+#define MCI_STATUS_MSCOD(m) (((m) >> 16) & 0xffff)
+
+/* AMD-specific bits */
+#define MCI_STATUS_TCC BIT_ULL(55) /* Task context corrupt */
+#define MCI_STATUS_SYNDV BIT_ULL(53) /* synd reg. valid */
+#define MCI_STATUS_DEFERRED BIT_ULL(44) /* uncorrected error, deferred exception */
+#define MCI_STATUS_POISON BIT_ULL(43) /* access poisonous data */
+#define MCI_STATUS_SCRUB BIT_ULL(40) /* Error detected during scrub operation */
+
+/*
+ * McaX field if set indicates a given bank supports MCA extensions:
+ * - Deferred error interrupt type is specifiable by bank.
+ * - MCx_MISC0[BlkPtr] field indicates presence of extended MISC registers,
+ * But should not be used to determine MSR numbers.
+ * - TCC bit is present in MCx_STATUS.
+ */
+#define MCI_CONFIG_MCAX 0x1
+#define MCI_IPID_MCATYPE 0xFFFF0000
+#define MCI_IPID_HWID 0xFFF
+
+/*
+ * Note that the full MCACOD field of IA32_MCi_STATUS MSR is
+ * bits 15:0. But bit 12 is the 'F' bit, defined for corrected
+ * errors to indicate that errors are being filtered by hardware.
+ * We should mask out bit 12 when looking for specific signatures
+ * of uncorrected errors - so the F bit is deliberately skipped
+ * in this #define.
+ */
+#define MCACOD 0xefff /* MCA Error Code */
+
+/* Architecturally defined codes from SDM Vol. 3B Chapter 15 */
+#define MCACOD_SCRUB 0x00C0 /* 0xC0-0xCF Memory Scrubbing */
+#define MCACOD_SCRUBMSK 0xeff0 /* Skip bit 12 ('F' bit) */
+#define MCACOD_L3WB 0x017A /* L3 Explicit Writeback */
+#define MCACOD_DATA 0x0134 /* Data Load */
+#define MCACOD_INSTR 0x0150 /* Instruction Fetch */
+
+/* MCi_MISC register defines */
+#define MCI_MISC_ADDR_LSB(m) ((m) & 0x3f)
+#define MCI_MISC_ADDR_MODE(m) (((m) >> 6) & 7)
+#define MCI_MISC_ADDR_SEGOFF 0 /* segment offset */
+#define MCI_MISC_ADDR_LINEAR 1 /* linear address */
+#define MCI_MISC_ADDR_PHYS 2 /* physical address */
+#define MCI_MISC_ADDR_MEM 3 /* memory address */
+#define MCI_MISC_ADDR_GENERIC 7 /* generic */
+
+/* MCi_ADDR register defines */
+#define MCI_ADDR_PHYSADDR GENMASK_ULL(boot_cpu_data.x86_phys_bits - 1, 0)
/* CTL2 register defines */
-#define MCI_CTL2_CMCI_EN (1ULL << 30)
+#define MCI_CTL2_CMCI_EN BIT_ULL(30)
#define MCI_CTL2_CMCI_THRESHOLD_MASK 0x7fffULL
#define MCJ_CTX_MASK 3
#define MCJ_CTX(flags) ((flags) & MCJ_CTX_MASK)
#define MCJ_CTX_RANDOM 0 /* inject context: random */
-#define MCJ_CTX_PROCESS 1 /* inject context: process */
-#define MCJ_CTX_IRQ 2 /* inject context: IRQ */
-#define MCJ_NMI_BROADCAST 4 /* do NMI broadcasting */
-#define MCJ_EXCEPTION 8 /* raise as exception */
-
-/* Fields are zero when not available */
-struct mce {
- __u64 status;
- __u64 misc;
- __u64 addr;
- __u64 mcgstatus;
- __u64 ip;
- __u64 tsc; /* cpu time stamp counter */
- __u64 time; /* wall time_t when error was detected */
- __u8 cpuvendor; /* cpu vendor as encoded in system.h */
- __u8 inject_flags; /* software inject flags */
- __u16 pad;
- __u32 cpuid; /* CPUID 1 EAX */
- __u8 cs; /* code segment */
- __u8 bank; /* machine check bank */
- __u8 cpu; /* cpu number; obsolete; use extcpu now */
- __u8 finished; /* entry is valid */
- __u32 extcpu; /* linux cpu number that detected the error */
- __u32 socketid; /* CPU socket ID */
- __u32 apicid; /* CPU initial apic ID */
- __u64 mcgcap; /* MCGCAP MSR: machine check capabilities of CPU */
-};
+#define MCJ_CTX_PROCESS 0x1 /* inject context: process */
+#define MCJ_CTX_IRQ 0x2 /* inject context: IRQ */
+#define MCJ_NMI_BROADCAST 0x4 /* do NMI broadcasting */
+#define MCJ_EXCEPTION 0x8 /* raise as exception */
+#define MCJ_IRQ_BROADCAST 0x10 /* do IRQ broadcasting */
+
+#define MCE_OVERFLOW 0 /* bit 0 in flags means overflow */
+
+#define MCE_LOG_MIN_LEN 32U
+#define MCE_LOG_SIGNATURE "MACHINECHECK"
+
+/* AMD Scalable MCA */
+#define MSR_AMD64_SMCA_MC0_CTL 0xc0002000
+#define MSR_AMD64_SMCA_MC0_STATUS 0xc0002001
+#define MSR_AMD64_SMCA_MC0_ADDR 0xc0002002
+#define MSR_AMD64_SMCA_MC0_MISC0 0xc0002003
+#define MSR_AMD64_SMCA_MC0_CONFIG 0xc0002004
+#define MSR_AMD64_SMCA_MC0_IPID 0xc0002005
+#define MSR_AMD64_SMCA_MC0_SYND 0xc0002006
+#define MSR_AMD64_SMCA_MC0_DESTAT 0xc0002008
+#define MSR_AMD64_SMCA_MC0_DEADDR 0xc0002009
+#define MSR_AMD64_SMCA_MC0_MISC1 0xc000200a
+#define MSR_AMD64_SMCA_MCx_CTL(x) (MSR_AMD64_SMCA_MC0_CTL + 0x10*(x))
+#define MSR_AMD64_SMCA_MCx_STATUS(x) (MSR_AMD64_SMCA_MC0_STATUS + 0x10*(x))
+#define MSR_AMD64_SMCA_MCx_ADDR(x) (MSR_AMD64_SMCA_MC0_ADDR + 0x10*(x))
+#define MSR_AMD64_SMCA_MCx_MISC(x) (MSR_AMD64_SMCA_MC0_MISC0 + 0x10*(x))
+#define MSR_AMD64_SMCA_MCx_CONFIG(x) (MSR_AMD64_SMCA_MC0_CONFIG + 0x10*(x))
+#define MSR_AMD64_SMCA_MCx_IPID(x) (MSR_AMD64_SMCA_MC0_IPID + 0x10*(x))
+#define MSR_AMD64_SMCA_MCx_SYND(x) (MSR_AMD64_SMCA_MC0_SYND + 0x10*(x))
+#define MSR_AMD64_SMCA_MCx_DESTAT(x) (MSR_AMD64_SMCA_MC0_DESTAT + 0x10*(x))
+#define MSR_AMD64_SMCA_MCx_DEADDR(x) (MSR_AMD64_SMCA_MC0_DEADDR + 0x10*(x))
+#define MSR_AMD64_SMCA_MCx_MISCy(x, y) ((MSR_AMD64_SMCA_MC0_MISC1 + y) + (0x10*(x)))
+
+#define XEC(x, mask) (((x) >> 16) & mask)
+
+/* mce.kflags flag bits for logging etc. */
+#define MCE_HANDLED_CEC BIT_ULL(0)
+#define MCE_HANDLED_UC BIT_ULL(1)
+#define MCE_HANDLED_EXTLOG BIT_ULL(2)
+#define MCE_HANDLED_NFIT BIT_ULL(3)
+#define MCE_HANDLED_EDAC BIT_ULL(4)
+#define MCE_HANDLED_MCELOG BIT_ULL(5)
+
+/*
+ * Indicates an MCE which has happened in kernel space but from
+ * which the kernel can recover simply by executing fixup_exception()
+ * so that an error is returned to the caller of the function that
+ * hit the machine check.
+ */
+#define MCE_IN_KERNEL_RECOV BIT_ULL(6)
+
+/*
+ * Indicates an MCE that happened in kernel space while copying data
+ * from user. In this case fixup_exception() gets the kernel to the
+ * error exit for the copy function. Machine check handler can then
+ * treat it like a fault taken in user mode.
+ */
+#define MCE_IN_KERNEL_COPYIN BIT_ULL(7)
/*
* This structure contains all data related to the MCE log. Also
@@ -79,158 +163,123 @@ struct mce {
* debugging tools. Each entry is only valid when its finished flag
* is set.
*/
-
-#define MCE_LOG_LEN 32
-
-struct mce_log {
+struct mce_log_buffer {
char signature[12]; /* "MACHINECHECK" */
- unsigned len; /* = MCE_LOG_LEN */
+ unsigned len; /* = elements in .mce_entry[] */
unsigned next;
unsigned flags;
unsigned recordlen; /* length of struct mce */
- struct mce entry[MCE_LOG_LEN];
+ struct mce entry[];
};
-#define MCE_OVERFLOW 0 /* bit 0 in flags means overflow */
-
-#define MCE_LOG_SIGNATURE "MACHINECHECK"
-
-#define MCE_GET_RECORD_LEN _IOR('M', 1, int)
-#define MCE_GET_LOG_LEN _IOR('M', 2, int)
-#define MCE_GETCLEAR_FLAGS _IOR('M', 3, int)
-
-/* Software defined banks */
-#define MCE_EXTENDED_BANK 128
-#define MCE_THERMAL_BANK MCE_EXTENDED_BANK + 0
-
-#define K8_MCE_THRESHOLD_BASE (MCE_EXTENDED_BANK + 1) /* MCE_AMD */
-#define K8_MCE_THRESHOLD_BANK_0 (MCE_THRESHOLD_BASE + 0 * 9)
-#define K8_MCE_THRESHOLD_BANK_1 (MCE_THRESHOLD_BASE + 1 * 9)
-#define K8_MCE_THRESHOLD_BANK_2 (MCE_THRESHOLD_BASE + 2 * 9)
-#define K8_MCE_THRESHOLD_BANK_3 (MCE_THRESHOLD_BASE + 3 * 9)
-#define K8_MCE_THRESHOLD_BANK_4 (MCE_THRESHOLD_BASE + 4 * 9)
-#define K8_MCE_THRESHOLD_BANK_5 (MCE_THRESHOLD_BASE + 5 * 9)
-#define K8_MCE_THRESHOLD_DRAM_ECC (MCE_THRESHOLD_BANK_4 + 0)
-
-
-#ifdef __KERNEL__
+/* Highest last */
+enum mce_notifier_prios {
+ MCE_PRIO_LOWEST,
+ MCE_PRIO_MCELOG,
+ MCE_PRIO_EDAC,
+ MCE_PRIO_NFIT,
+ MCE_PRIO_EXTLOG,
+ MCE_PRIO_UC,
+ MCE_PRIO_EARLY,
+ MCE_PRIO_CEC,
+ MCE_PRIO_HIGHEST = MCE_PRIO_CEC
+};
-extern struct atomic_notifier_head x86_mce_decoder_chain;
+struct notifier_block;
+extern void mce_register_decode_chain(struct notifier_block *nb);
+extern void mce_unregister_decode_chain(struct notifier_block *nb);
#include <linux/percpu.h>
-#include <linux/init.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
-extern int mce_disabled;
extern int mce_p5_enabled;
+#ifdef CONFIG_ARCH_HAS_COPY_MC
+extern void enable_copy_mc_fragile(void);
+unsigned long __must_check copy_mc_fragile(void *dst, const void *src, unsigned cnt);
+#else
+static inline void enable_copy_mc_fragile(void)
+{
+}
+#endif
+
+struct cper_ia_proc_ctx;
+
#ifdef CONFIG_X86_MCE
int mcheck_init(void);
void mcheck_cpu_init(struct cpuinfo_x86 *c);
+void mcheck_cpu_clear(struct cpuinfo_x86 *c);
+int apei_smca_report_x86_error(struct cper_ia_proc_ctx *ctx_info,
+ u64 lapic_id);
#else
static inline int mcheck_init(void) { return 0; }
static inline void mcheck_cpu_init(struct cpuinfo_x86 *c) {}
+static inline void mcheck_cpu_clear(struct cpuinfo_x86 *c) {}
+static inline int apei_smca_report_x86_error(struct cper_ia_proc_ctx *ctx_info,
+ u64 lapic_id) { return -EINVAL; }
#endif
-#ifdef CONFIG_X86_ANCIENT_MCE
-void intel_p5_mcheck_init(struct cpuinfo_x86 *c);
-void winchip_mcheck_init(struct cpuinfo_x86 *c);
-static inline void enable_p5_mce(void) { mce_p5_enabled = 1; }
-#else
-static inline void intel_p5_mcheck_init(struct cpuinfo_x86 *c) {}
-static inline void winchip_mcheck_init(struct cpuinfo_x86 *c) {}
-static inline void enable_p5_mce(void) {}
-#endif
-
-extern void (*x86_mce_decode_callback)(struct mce *m);
-
void mce_setup(struct mce *m);
void mce_log(struct mce *m);
-DECLARE_PER_CPU(struct sys_device, mce_dev);
+DECLARE_PER_CPU(struct device *, mce_device);
-/*
- * Maximum banks number.
- * This is the limit of the current register layout on
- * Intel CPUs.
- */
-#define MAX_NR_BANKS 32
+/* Maximum number of MCA banks per CPU. */
+#define MAX_NR_BANKS 64
#ifdef CONFIG_X86_MCE_INTEL
-extern int mce_cmci_disabled;
-extern int mce_ignore_ce;
void mce_intel_feature_init(struct cpuinfo_x86 *c);
+void mce_intel_feature_clear(struct cpuinfo_x86 *c);
void cmci_clear(void);
void cmci_reenable(void);
-void cmci_rediscover(int dying);
+void cmci_rediscover(void);
void cmci_recheck(void);
#else
static inline void mce_intel_feature_init(struct cpuinfo_x86 *c) { }
+static inline void mce_intel_feature_clear(struct cpuinfo_x86 *c) { }
static inline void cmci_clear(void) {}
static inline void cmci_reenable(void) {}
-static inline void cmci_rediscover(int dying) {}
+static inline void cmci_rediscover(void) {}
static inline void cmci_recheck(void) {}
#endif
-#ifdef CONFIG_X86_MCE_AMD
-void mce_amd_feature_init(struct cpuinfo_x86 *c);
-#else
-static inline void mce_amd_feature_init(struct cpuinfo_x86 *c) { }
-#endif
-
int mce_available(struct cpuinfo_x86 *c);
+bool mce_is_memory_error(struct mce *m);
+bool mce_is_correctable(struct mce *m);
+int mce_usable_address(struct mce *m);
DECLARE_PER_CPU(unsigned, mce_exception_count);
DECLARE_PER_CPU(unsigned, mce_poll_count);
-extern atomic_t mce_entry;
-
typedef DECLARE_BITMAP(mce_banks_t, MAX_NR_BANKS);
DECLARE_PER_CPU(mce_banks_t, mce_poll_banks);
enum mcp_flags {
- MCP_TIMESTAMP = (1 << 0), /* log time stamp */
- MCP_UC = (1 << 1), /* log uncorrected errors */
- MCP_DONTLOG = (1 << 2), /* only clear, don't log */
+ MCP_TIMESTAMP = BIT(0), /* log time stamp */
+ MCP_UC = BIT(1), /* log uncorrected errors */
+ MCP_DONTLOG = BIT(2), /* only clear, don't log */
+ MCP_QUEUE_LOG = BIT(3), /* only queue to genpool */
};
-void machine_check_poll(enum mcp_flags flags, mce_banks_t *b);
+bool machine_check_poll(enum mcp_flags flags, mce_banks_t *b);
int mce_notify_irq(void);
-void mce_notify_process(void);
DECLARE_PER_CPU(struct mce, injectm);
-extern struct file_operations mce_chrdev_ops;
+
+/* Disable CMCI/polling for MCA bank claimed by firmware */
+extern void mce_disable_bank(int bank);
/*
* Exception handler
*/
-
-/* Call the installed machine check handler for this CPU setup. */
-extern void (*machine_check_vector)(struct pt_regs *, long error_code);
-void do_machine_check(struct pt_regs *, long);
+void do_machine_check(struct pt_regs *pt_regs);
/*
* Threshold handler
*/
-
extern void (*mce_threshold_vector)(void);
-extern void (*threshold_cpu_callback)(unsigned long action, unsigned int cpu);
-
-/*
- * Thermal handler
- */
-
-void intel_init_thermal(struct cpuinfo_x86 *c);
-void mce_log_therm_throt_event(__u64 status);
-
-/* Interrupt Handler for core thermal thresholds */
-extern int (*platform_thermal_notify)(__u64 msr_val);
-
-#ifdef CONFIG_X86_THERMAL_VECTOR
-extern void mcheck_intel_therm_init(void);
-#else
-static inline void mcheck_intel_therm_init(void) { }
-#endif
+/* Deferred error interrupt handler */
+extern void (*deferred_error_int_vector)(void);
/*
* Used by APEI to report memory error via /dev/mcelog
@@ -240,5 +289,65 @@ struct cper_sec_mem_err;
extern void apei_mce_report_mem_error(int corrected,
struct cper_sec_mem_err *mem_err);
-#endif /* __KERNEL__ */
+/*
+ * Enumerate new IP types and HWID values in AMD processors which support
+ * Scalable MCA.
+ */
+#ifdef CONFIG_X86_MCE_AMD
+
+/* These may be used by multiple smca_hwid_mcatypes */
+enum smca_bank_types {
+ SMCA_LS = 0, /* Load Store */
+ SMCA_LS_V2,
+ SMCA_IF, /* Instruction Fetch */
+ SMCA_L2_CACHE, /* L2 Cache */
+ SMCA_DE, /* Decoder Unit */
+ SMCA_RESERVED, /* Reserved */
+ SMCA_EX, /* Execution Unit */
+ SMCA_FP, /* Floating Point */
+ SMCA_L3_CACHE, /* L3 Cache */
+ SMCA_CS, /* Coherent Slave */
+ SMCA_CS_V2,
+ SMCA_PIE, /* Power, Interrupts, etc. */
+ SMCA_UMC, /* Unified Memory Controller */
+ SMCA_UMC_V2,
+ SMCA_PB, /* Parameter Block */
+ SMCA_PSP, /* Platform Security Processor */
+ SMCA_PSP_V2,
+ SMCA_SMU, /* System Management Unit */
+ SMCA_SMU_V2,
+ SMCA_MP5, /* Microprocessor 5 Unit */
+ SMCA_MPDMA, /* MPDMA Unit */
+ SMCA_NBIO, /* Northbridge IO Unit */
+ SMCA_PCIE, /* PCI Express Unit */
+ SMCA_PCIE_V2,
+ SMCA_XGMI_PCS, /* xGMI PCS Unit */
+ SMCA_NBIF, /* NBIF Unit */
+ SMCA_SHUB, /* System HUB Unit */
+ SMCA_SATA, /* SATA Unit */
+ SMCA_USB, /* USB Unit */
+ SMCA_GMI_PCS, /* GMI PCS Unit */
+ SMCA_XGMI_PHY, /* xGMI PHY Unit */
+ SMCA_WAFL_PHY, /* WAFL PHY Unit */
+ SMCA_GMI_PHY, /* GMI PHY Unit */
+ N_SMCA_BANK_TYPES
+};
+
+extern const char *smca_get_long_name(enum smca_bank_types t);
+extern bool amd_mce_is_memory_error(struct mce *m);
+
+extern int mce_threshold_create_device(unsigned int cpu);
+extern int mce_threshold_remove_device(unsigned int cpu);
+
+void mce_amd_feature_init(struct cpuinfo_x86 *c);
+enum smca_bank_types smca_get_bank_type(unsigned int cpu, unsigned int bank);
+#else
+
+static inline int mce_threshold_create_device(unsigned int cpu) { return 0; };
+static inline int mce_threshold_remove_device(unsigned int cpu) { return 0; };
+static inline bool amd_mce_is_memory_error(struct mce *m) { return false; };
+static inline void mce_amd_feature_init(struct cpuinfo_x86 *c) { }
+#endif
+
+static inline void mce_hygon_feature_init(struct cpuinfo_x86 *c) { return mce_amd_feature_init(c); }
#endif /* _ASM_X86_MCE_H */
diff --git a/arch/x86/include/asm/mem_encrypt.h b/arch/x86/include/asm/mem_encrypt.h
new file mode 100644
index 000000000000..b7126701574c
--- /dev/null
+++ b/arch/x86/include/asm/mem_encrypt.h
@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * AMD Memory Encryption Support
+ *
+ * Copyright (C) 2016 Advanced Micro Devices, Inc.
+ *
+ * Author: Tom Lendacky <thomas.lendacky@amd.com>
+ */
+
+#ifndef __X86_MEM_ENCRYPT_H__
+#define __X86_MEM_ENCRYPT_H__
+
+#ifndef __ASSEMBLY__
+
+#include <linux/init.h>
+#include <linux/cc_platform.h>
+
+#include <asm/bootparam.h>
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+
+extern u64 sme_me_mask;
+extern u64 sev_status;
+
+void sme_encrypt_execute(unsigned long encrypted_kernel_vaddr,
+ unsigned long decrypted_kernel_vaddr,
+ unsigned long kernel_len,
+ unsigned long encryption_wa,
+ unsigned long encryption_pgd);
+
+void __init sme_early_encrypt(resource_size_t paddr,
+ unsigned long size);
+void __init sme_early_decrypt(resource_size_t paddr,
+ unsigned long size);
+
+void __init sme_map_bootdata(char *real_mode_data);
+void __init sme_unmap_bootdata(char *real_mode_data);
+
+void __init sme_early_init(void);
+void __init sev_setup_arch(void);
+
+void __init sme_encrypt_kernel(struct boot_params *bp);
+void __init sme_enable(struct boot_params *bp);
+
+int __init early_set_memory_decrypted(unsigned long vaddr, unsigned long size);
+int __init early_set_memory_encrypted(unsigned long vaddr, unsigned long size);
+void __init early_set_mem_enc_dec_hypercall(unsigned long vaddr, int npages,
+ bool enc);
+
+void __init mem_encrypt_free_decrypted_mem(void);
+
+void __init sev_es_init_vc_handling(void);
+
+#define __bss_decrypted __section(".bss..decrypted")
+
+#else /* !CONFIG_AMD_MEM_ENCRYPT */
+
+#define sme_me_mask 0ULL
+#define sev_status 0ULL
+
+static inline void __init sme_early_encrypt(resource_size_t paddr,
+ unsigned long size) { }
+static inline void __init sme_early_decrypt(resource_size_t paddr,
+ unsigned long size) { }
+
+static inline void __init sme_map_bootdata(char *real_mode_data) { }
+static inline void __init sme_unmap_bootdata(char *real_mode_data) { }
+
+static inline void __init sme_early_init(void) { }
+static inline void __init sev_setup_arch(void) { }
+
+static inline void __init sme_encrypt_kernel(struct boot_params *bp) { }
+static inline void __init sme_enable(struct boot_params *bp) { }
+
+static inline void sev_es_init_vc_handling(void) { }
+
+static inline int __init
+early_set_memory_decrypted(unsigned long vaddr, unsigned long size) { return 0; }
+static inline int __init
+early_set_memory_encrypted(unsigned long vaddr, unsigned long size) { return 0; }
+static inline void __init
+early_set_mem_enc_dec_hypercall(unsigned long vaddr, int npages, bool enc) {}
+
+static inline void mem_encrypt_free_decrypted_mem(void) { }
+
+#define __bss_decrypted
+
+#endif /* CONFIG_AMD_MEM_ENCRYPT */
+
+/* Architecture __weak replacement functions */
+void __init mem_encrypt_init(void);
+
+void add_encrypt_protection_map(void);
+
+/*
+ * The __sme_pa() and __sme_pa_nodebug() macros are meant for use when
+ * writing to or comparing values from the cr3 register. Having the
+ * encryption mask set in cr3 enables the PGD entry to be encrypted and
+ * avoid special case handling of PGD allocations.
+ */
+#define __sme_pa(x) (__pa(x) | sme_me_mask)
+#define __sme_pa_nodebug(x) (__pa_nodebug(x) | sme_me_mask)
+
+extern char __start_bss_decrypted[], __end_bss_decrypted[], __start_bss_decrypted_unused[];
+
+static inline u64 sme_get_me_mask(void)
+{
+ return sme_me_mask;
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __X86_MEM_ENCRYPT_H__ */
diff --git a/arch/x86/include/asm/memblock.h b/arch/x86/include/asm/memblock.h
deleted file mode 100644
index 19ae14ba6978..000000000000
--- a/arch/x86/include/asm/memblock.h
+++ /dev/null
@@ -1,23 +0,0 @@
-#ifndef _X86_MEMBLOCK_H
-#define _X86_MEMBLOCK_H
-
-#define ARCH_DISCARD_MEMBLOCK
-
-u64 memblock_x86_find_in_range_size(u64 start, u64 *sizep, u64 align);
-void memblock_x86_to_bootmem(u64 start, u64 end);
-
-void memblock_x86_reserve_range(u64 start, u64 end, char *name);
-void memblock_x86_free_range(u64 start, u64 end);
-struct range;
-int __get_free_all_memory_range(struct range **range, int nodeid,
- unsigned long start_pfn, unsigned long end_pfn);
-int get_free_all_memory_range(struct range **rangep, int nodeid);
-
-void memblock_x86_register_active_regions(int nid, unsigned long start_pfn,
- unsigned long last_pfn);
-u64 memblock_x86_hole_size(u64 start, u64 end);
-u64 memblock_x86_find_in_range_node(int nid, u64 start, u64 end, u64 size, u64 align);
-u64 memblock_x86_free_memory_in_range(u64 addr, u64 limit);
-u64 memblock_x86_memory_in_range(u64 addr, u64 limit);
-
-#endif
diff --git a/arch/x86/include/asm/memtype.h b/arch/x86/include/asm/memtype.h
new file mode 100644
index 000000000000..113b2fa51849
--- /dev/null
+++ b/arch/x86/include/asm/memtype.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_MEMTYPE_H
+#define _ASM_X86_MEMTYPE_H
+
+#include <linux/types.h>
+#include <asm/pgtable_types.h>
+
+extern bool pat_enabled(void);
+extern void pat_bp_init(void);
+extern void pat_cpu_init(void);
+
+extern int memtype_reserve(u64 start, u64 end,
+ enum page_cache_mode req_pcm, enum page_cache_mode *ret_pcm);
+extern int memtype_free(u64 start, u64 end);
+
+extern int memtype_kernel_map_sync(u64 base, unsigned long size,
+ enum page_cache_mode pcm);
+
+extern int memtype_reserve_io(resource_size_t start, resource_size_t end,
+ enum page_cache_mode *pcm);
+
+extern void memtype_free_io(resource_size_t start, resource_size_t end);
+
+extern bool pat_pfn_immune_to_uc_mtrr(unsigned long pfn);
+
+bool x86_has_pat_wp(void);
+enum page_cache_mode pgprot2cachemode(pgprot_t pgprot);
+
+#endif /* _ASM_X86_MEMTYPE_H */
diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
index 24215072d0e1..320566a0443d 100644
--- a/arch/x86/include/asm/microcode.h
+++ b/arch/x86/include/asm/microcode.h
@@ -1,6 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MICROCODE_H
#define _ASM_X86_MICROCODE_H
+#include <asm/cpu.h>
+#include <linux/earlycpio.h>
+#include <linux/initrd.h>
+
+struct ucode_patch {
+ struct list_head plist;
+ void *data; /* Intel uses only this one */
+ unsigned int size;
+ u32 patch_id;
+ u16 equiv_cpu;
+};
+
+extern struct list_head microcode_cache;
+
struct cpu_signature {
unsigned int sig;
unsigned int pf;
@@ -9,14 +24,16 @@ struct cpu_signature {
struct device;
-enum ucode_state { UCODE_ERROR, UCODE_OK, UCODE_NFOUND };
+enum ucode_state {
+ UCODE_OK = 0,
+ UCODE_NEW,
+ UCODE_UPDATED,
+ UCODE_NFOUND,
+ UCODE_ERROR,
+};
struct microcode_ops {
- enum ucode_state (*request_microcode_user) (int cpu,
- const void __user *buf, size_t size);
-
- enum ucode_state (*request_microcode_fw) (int cpu,
- struct device *device);
+ enum ucode_state (*request_microcode_fw) (int cpu, struct device *);
void (*microcode_fini_cpu) (int cpu);
@@ -26,16 +43,16 @@ struct microcode_ops {
* are being called.
* See also the "Synchronization" section in microcode_core.c.
*/
- int (*apply_microcode) (int cpu);
+ enum ucode_state (*apply_microcode) (int cpu);
int (*collect_cpu_info) (int cpu, struct cpu_signature *csig);
};
struct ucode_cpu_info {
struct cpu_signature cpu_sig;
- int valid;
void *mc;
};
extern struct ucode_cpu_info ucode_cpu_info[];
+struct cpio_data find_microcode_in_initrd(const char *path, bool use_pa);
#ifdef CONFIG_MICROCODE_INTEL
extern struct microcode_ops * __init init_intel_microcode(void);
@@ -48,17 +65,74 @@ static inline struct microcode_ops * __init init_intel_microcode(void)
#ifdef CONFIG_MICROCODE_AMD
extern struct microcode_ops * __init init_amd_microcode(void);
+extern void __exit exit_amd_microcode(void);
+#else
+static inline struct microcode_ops * __init init_amd_microcode(void)
+{
+ return NULL;
+}
+static inline void __exit exit_amd_microcode(void) {}
+#endif
+
+#define MAX_UCODE_COUNT 128
-static inline void get_ucode_data(void *to, const u8 *from, size_t n)
+#define QCHAR(a, b, c, d) ((a) + ((b) << 8) + ((c) << 16) + ((d) << 24))
+#define CPUID_INTEL1 QCHAR('G', 'e', 'n', 'u')
+#define CPUID_INTEL2 QCHAR('i', 'n', 'e', 'I')
+#define CPUID_INTEL3 QCHAR('n', 't', 'e', 'l')
+#define CPUID_AMD1 QCHAR('A', 'u', 't', 'h')
+#define CPUID_AMD2 QCHAR('e', 'n', 't', 'i')
+#define CPUID_AMD3 QCHAR('c', 'A', 'M', 'D')
+
+#define CPUID_IS(a, b, c, ebx, ecx, edx) \
+ (!((ebx ^ (a))|(edx ^ (b))|(ecx ^ (c))))
+
+/*
+ * In early loading microcode phase on BSP, boot_cpu_data is not set up yet.
+ * x86_cpuid_vendor() gets vendor id for BSP.
+ *
+ * In 32 bit AP case, accessing boot_cpu_data needs linear address. To simplify
+ * coding, we still use x86_cpuid_vendor() to get vendor id for AP.
+ *
+ * x86_cpuid_vendor() gets vendor information directly from CPUID.
+ */
+static inline int x86_cpuid_vendor(void)
{
- memcpy(to, from, n);
+ u32 eax = 0x00000000;
+ u32 ebx, ecx = 0, edx;
+
+ native_cpuid(&eax, &ebx, &ecx, &edx);
+
+ if (CPUID_IS(CPUID_INTEL1, CPUID_INTEL2, CPUID_INTEL3, ebx, ecx, edx))
+ return X86_VENDOR_INTEL;
+
+ if (CPUID_IS(CPUID_AMD1, CPUID_AMD2, CPUID_AMD3, ebx, ecx, edx))
+ return X86_VENDOR_AMD;
+
+ return X86_VENDOR_UNKNOWN;
}
-#else
-static inline struct microcode_ops * __init init_amd_microcode(void)
+static inline unsigned int x86_cpuid_family(void)
{
- return NULL;
+ u32 eax = 0x00000001;
+ u32 ebx, ecx = 0, edx;
+
+ native_cpuid(&eax, &ebx, &ecx, &edx);
+
+ return x86_family(eax);
}
+
+#ifdef CONFIG_MICROCODE
+extern void __init load_ucode_bsp(void);
+extern void load_ucode_ap(void);
+void reload_early_microcode(unsigned int cpu);
+extern bool initrd_gone;
+void microcode_bsp_resume(void);
+#else
+static inline void __init load_ucode_bsp(void) { }
+static inline void load_ucode_ap(void) { }
+static inline void reload_early_microcode(unsigned int cpu) { }
+static inline void microcode_bsp_resume(void) { }
#endif
#endif /* _ASM_X86_MICROCODE_H */
diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h
new file mode 100644
index 000000000000..e6662adf3af4
--- /dev/null
+++ b/arch/x86/include/asm/microcode_amd.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_MICROCODE_AMD_H
+#define _ASM_X86_MICROCODE_AMD_H
+
+#include <asm/microcode.h>
+
+#define UCODE_MAGIC 0x00414d44
+#define UCODE_EQUIV_CPU_TABLE_TYPE 0x00000000
+#define UCODE_UCODE_TYPE 0x00000001
+
+#define SECTION_HDR_SIZE 8
+#define CONTAINER_HDR_SZ 12
+
+struct equiv_cpu_entry {
+ u32 installed_cpu;
+ u32 fixed_errata_mask;
+ u32 fixed_errata_compare;
+ u16 equiv_cpu;
+ u16 res;
+} __attribute__((packed));
+
+struct microcode_header_amd {
+ u32 data_code;
+ u32 patch_id;
+ u16 mc_patch_data_id;
+ u8 mc_patch_data_len;
+ u8 init_flag;
+ u32 mc_patch_data_checksum;
+ u32 nb_dev_id;
+ u32 sb_dev_id;
+ u16 processor_rev_id;
+ u8 nb_rev_id;
+ u8 sb_rev_id;
+ u8 bios_api_rev;
+ u8 reserved1[3];
+ u32 match_reg[8];
+} __attribute__((packed));
+
+struct microcode_amd {
+ struct microcode_header_amd hdr;
+ unsigned int mpb[];
+};
+
+#define PATCH_MAX_SIZE (3 * PAGE_SIZE)
+
+#ifdef CONFIG_MICROCODE_AMD
+extern void __init load_ucode_amd_bsp(unsigned int family);
+extern void load_ucode_amd_ap(unsigned int family);
+extern int __init save_microcode_in_initrd_amd(unsigned int family);
+void reload_ucode_amd(unsigned int cpu);
+#else
+static inline void __init load_ucode_amd_bsp(unsigned int family) {}
+static inline void load_ucode_amd_ap(unsigned int family) {}
+static inline int __init
+save_microcode_in_initrd_amd(unsigned int family) { return -EINVAL; }
+static inline void reload_ucode_amd(unsigned int cpu) {}
+#endif
+#endif /* _ASM_X86_MICROCODE_AMD_H */
diff --git a/arch/x86/include/asm/microcode_intel.h b/arch/x86/include/asm/microcode_intel.h
new file mode 100644
index 000000000000..f1fa979e05bf
--- /dev/null
+++ b/arch/x86/include/asm/microcode_intel.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_MICROCODE_INTEL_H
+#define _ASM_X86_MICROCODE_INTEL_H
+
+#include <asm/microcode.h>
+
+struct microcode_header_intel {
+ unsigned int hdrver;
+ unsigned int rev;
+ unsigned int date;
+ unsigned int sig;
+ unsigned int cksum;
+ unsigned int ldrver;
+ unsigned int pf;
+ unsigned int datasize;
+ unsigned int totalsize;
+ unsigned int metasize;
+ unsigned int reserved[2];
+};
+
+struct microcode_intel {
+ struct microcode_header_intel hdr;
+ unsigned int bits[];
+};
+
+/* microcode format is extended from prescott processors */
+struct extended_signature {
+ unsigned int sig;
+ unsigned int pf;
+ unsigned int cksum;
+};
+
+struct extended_sigtable {
+ unsigned int count;
+ unsigned int cksum;
+ unsigned int reserved[3];
+ struct extended_signature sigs[];
+};
+
+#define DEFAULT_UCODE_DATASIZE (2000)
+#define MC_HEADER_SIZE (sizeof(struct microcode_header_intel))
+#define DEFAULT_UCODE_TOTALSIZE (DEFAULT_UCODE_DATASIZE + MC_HEADER_SIZE)
+#define EXT_HEADER_SIZE (sizeof(struct extended_sigtable))
+#define EXT_SIGNATURE_SIZE (sizeof(struct extended_signature))
+#define MC_HEADER_TYPE_MICROCODE 1
+#define MC_HEADER_TYPE_IFS 2
+
+#define get_totalsize(mc) \
+ (((struct microcode_intel *)mc)->hdr.datasize ? \
+ ((struct microcode_intel *)mc)->hdr.totalsize : \
+ DEFAULT_UCODE_TOTALSIZE)
+
+#define get_datasize(mc) \
+ (((struct microcode_intel *)mc)->hdr.datasize ? \
+ ((struct microcode_intel *)mc)->hdr.datasize : DEFAULT_UCODE_DATASIZE)
+
+#define exttable_size(et) ((et)->count * EXT_SIGNATURE_SIZE + EXT_HEADER_SIZE)
+
+static inline u32 intel_get_microcode_revision(void)
+{
+ u32 rev, dummy;
+
+ native_wrmsrl(MSR_IA32_UCODE_REV, 0);
+
+ /* As documented in the SDM: Do a CPUID 1 here */
+ native_cpuid_eax(1);
+
+ /* get the current revision from MSR 0x8B */
+ native_rdmsr(MSR_IA32_UCODE_REV, dummy, rev);
+
+ return rev;
+}
+
+#ifdef CONFIG_MICROCODE_INTEL
+extern void __init load_ucode_intel_bsp(void);
+extern void load_ucode_intel_ap(void);
+extern void show_ucode_info_early(void);
+extern int __init save_microcode_in_initrd_intel(void);
+void reload_ucode_intel(void);
+#else
+static inline __init void load_ucode_intel_bsp(void) {}
+static inline void load_ucode_intel_ap(void) {}
+static inline void show_ucode_info_early(void) {}
+static inline int __init save_microcode_in_initrd_intel(void) { return -EINVAL; }
+static inline void reload_ucode_intel(void) {}
+#endif
+
+#endif /* _ASM_X86_MICROCODE_INTEL_H */
diff --git a/arch/x86/include/asm/misc.h b/arch/x86/include/asm/misc.h
new file mode 100644
index 000000000000..bb049cca3729
--- /dev/null
+++ b/arch/x86/include/asm/misc.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_MISC_H
+#define _ASM_X86_MISC_H
+
+int num_digits(int val);
+
+#endif /* _ASM_X86_MISC_H */
diff --git a/arch/x86/include/asm/mman.h b/arch/x86/include/asm/mman.h
deleted file mode 100644
index 593e51d4643f..000000000000
--- a/arch/x86/include/asm/mman.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _ASM_X86_MMAN_H
-#define _ASM_X86_MMAN_H
-
-#define MAP_32BIT 0x40 /* only give out 32bit addresses */
-
-#include <asm-generic/mman.h>
-
-#endif /* _ASM_X86_MMAN_H */
diff --git a/arch/x86/include/asm/mmconfig.h b/arch/x86/include/asm/mmconfig.h
index 9b119da1d105..976486447e10 100644
--- a/arch/x86/include/asm/mmconfig.h
+++ b/arch/x86/include/asm/mmconfig.h
@@ -1,9 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MMCONFIG_H
#define _ASM_X86_MMCONFIG_H
#ifdef CONFIG_PCI_MMCONFIG
-extern void __cpuinit fam10h_check_enable_mmcfg(void);
-extern void __cpuinit check_enable_amd_mmconf_dmi(void);
+extern void fam10h_check_enable_mmcfg(void);
+extern void check_enable_amd_mmconf_dmi(void);
#else
static inline void fam10h_check_enable_mmcfg(void) { }
static inline void check_enable_amd_mmconf_dmi(void) { }
diff --git a/arch/x86/include/asm/mmu.h b/arch/x86/include/asm/mmu.h
index aeff3e89b222..0da5c227f490 100644
--- a/arch/x86/include/asm/mmu.h
+++ b/arch/x86/include/asm/mmu.h
@@ -1,32 +1,81 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MMU_H
#define _ASM_X86_MMU_H
#include <linux/spinlock.h>
+#include <linux/rwsem.h>
#include <linux/mutex.h>
+#include <linux/atomic.h>
+#include <linux/bits.h>
+
+/* Uprobes on this MM assume 32-bit code */
+#define MM_CONTEXT_UPROBE_IA32 0
+/* vsyscall page is accessible on this MM */
+#define MM_CONTEXT_HAS_VSYSCALL 1
+/* Do not allow changing LAM mode */
+#define MM_CONTEXT_LOCK_LAM 2
+/* Allow LAM and SVA coexisting */
+#define MM_CONTEXT_FORCE_TAGGED_SVA 3
/*
- * The x86 doesn't have a mmu context, but
- * we put the segment information here.
+ * x86 has arch-specific MMU state beyond what lives in mm_struct.
*/
typedef struct {
- void *ldt;
- int size;
- struct mutex lock;
- void *vdso;
+ /*
+ * ctx_id uniquely identifies this mm_struct. A ctx_id will never
+ * be reused, and zero is not a valid ctx_id.
+ */
+ u64 ctx_id;
+
+ /*
+ * Any code that needs to do any sort of TLB flushing for this
+ * mm will first make its changes to the page tables, then
+ * increment tlb_gen, then flush. This lets the low-level
+ * flushing code keep track of what needs flushing.
+ *
+ * This is not used on Xen PV.
+ */
+ atomic64_t tlb_gen;
+
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+ struct rw_semaphore ldt_usr_sem;
+ struct ldt_struct *ldt;
+#endif
#ifdef CONFIG_X86_64
- /* True if mm supports a task running in 32 bit compatibility mode. */
- unsigned short ia32_compat;
+ unsigned long flags;
#endif
+#ifdef CONFIG_ADDRESS_MASKING
+ /* Active LAM mode: X86_CR3_LAM_U48 or X86_CR3_LAM_U57 or 0 (disabled) */
+ unsigned long lam_cr3_mask;
+
+ /* Significant bits of the virtual address. Excludes tag bits. */
+ u64 untag_mask;
+#endif
+
+ struct mutex lock;
+ void __user *vdso; /* vdso base address */
+ const struct vdso_image *vdso_image; /* vdso image in use */
+
+ atomic_t perf_rdpmc_allowed; /* nonzero if rdpmc is allowed */
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+ /*
+ * One bit per protection key says whether userspace can
+ * use it or not. protected by mmap_lock.
+ */
+ u16 pkey_allocation_map;
+ s16 execute_only_pkey;
+#endif
} mm_context_t;
-#ifdef CONFIG_SMP
+#define INIT_MM_CONTEXT(mm) \
+ .context = { \
+ .ctx_id = 1, \
+ .lock = __MUTEX_INITIALIZER(mm.context.lock), \
+ }
+
void leave_mm(int cpu);
-#else
-static inline void leave_mm(int cpu)
-{
-}
-#endif
+#define leave_mm leave_mm
#endif /* _ASM_X86_MMU_H */
diff --git a/arch/x86/include/asm/mmu_context.h b/arch/x86/include/asm/mmu_context.h
index 8b5393ec1080..1d29dc791f5a 100644
--- a/arch/x86/include/asm/mmu_context.h
+++ b/arch/x86/include/asm/mmu_context.h
@@ -1,86 +1,187 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MMU_CONTEXT_H
#define _ASM_X86_MMU_CONTEXT_H
#include <asm/desc.h>
-#include <asm/atomic.h>
-#include <asm/pgalloc.h>
+#include <linux/atomic.h>
+#include <linux/mm_types.h>
+#include <linux/pkeys.h>
+
+#include <trace/events/tlb.h>
+
#include <asm/tlbflush.h>
#include <asm/paravirt.h>
-#ifndef CONFIG_PARAVIRT
-#include <asm-generic/mm_hooks.h>
+#include <asm/debugreg.h>
+#include <asm/gsseg.h>
-static inline void paravirt_activate_mm(struct mm_struct *prev,
- struct mm_struct *next)
-{
-}
-#endif /* !CONFIG_PARAVIRT */
+extern atomic64_t last_mm_ctx_id;
+
+#ifdef CONFIG_PERF_EVENTS
+DECLARE_STATIC_KEY_FALSE(rdpmc_never_available_key);
+DECLARE_STATIC_KEY_FALSE(rdpmc_always_available_key);
+void cr4_update_pce(void *ignored);
+#endif
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
/*
- * Used for LDT copy/destruction.
+ * ldt_structs can be allocated, used, and freed, but they are never
+ * modified while live.
*/
-int init_new_context(struct task_struct *tsk, struct mm_struct *mm);
-void destroy_context(struct mm_struct *mm);
+struct ldt_struct {
+ /*
+ * Xen requires page-aligned LDTs with special permissions. This is
+ * needed to prevent us from installing evil descriptors such as
+ * call gates. On native, we could merge the ldt_struct and LDT
+ * allocations, but it's not worth trying to optimize.
+ */
+ struct desc_struct *entries;
+ unsigned int nr_entries;
+
+ /*
+ * If PTI is in use, then the entries array is not mapped while we're
+ * in user mode. The whole array will be aliased at the addressed
+ * given by ldt_slot_va(slot). We use two slots so that we can allocate
+ * and map, and enable a new LDT without invalidating the mapping
+ * of an older, still-in-use LDT.
+ *
+ * slot will be -1 if this LDT doesn't have an alias mapping.
+ */
+ int slot;
+};
+/*
+ * Used for LDT copy/destruction.
+ */
+static inline void init_new_context_ldt(struct mm_struct *mm)
+{
+ mm->context.ldt = NULL;
+ init_rwsem(&mm->context.ldt_usr_sem);
+}
+int ldt_dup_context(struct mm_struct *oldmm, struct mm_struct *mm);
+void destroy_context_ldt(struct mm_struct *mm);
+void ldt_arch_exit_mmap(struct mm_struct *mm);
+#else /* CONFIG_MODIFY_LDT_SYSCALL */
+static inline void init_new_context_ldt(struct mm_struct *mm) { }
+static inline int ldt_dup_context(struct mm_struct *oldmm,
+ struct mm_struct *mm)
+{
+ return 0;
+}
+static inline void destroy_context_ldt(struct mm_struct *mm) { }
+static inline void ldt_arch_exit_mmap(struct mm_struct *mm) { }
+#endif
-static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
+#ifdef CONFIG_MODIFY_LDT_SYSCALL
+extern void load_mm_ldt(struct mm_struct *mm);
+extern void switch_ldt(struct mm_struct *prev, struct mm_struct *next);
+#else
+static inline void load_mm_ldt(struct mm_struct *mm)
{
-#ifdef CONFIG_SMP
- if (percpu_read(cpu_tlbstate.state) == TLBSTATE_OK)
- percpu_write(cpu_tlbstate.state, TLBSTATE_LAZY);
+ clear_LDT();
+}
+static inline void switch_ldt(struct mm_struct *prev, struct mm_struct *next)
+{
+ DEBUG_LOCKS_WARN_ON(preemptible());
+}
#endif
+
+#ifdef CONFIG_ADDRESS_MASKING
+static inline unsigned long mm_lam_cr3_mask(struct mm_struct *mm)
+{
+ return mm->context.lam_cr3_mask;
+}
+
+static inline void dup_lam(struct mm_struct *oldmm, struct mm_struct *mm)
+{
+ mm->context.lam_cr3_mask = oldmm->context.lam_cr3_mask;
+ mm->context.untag_mask = oldmm->context.untag_mask;
+}
+
+#define mm_untag_mask mm_untag_mask
+static inline unsigned long mm_untag_mask(struct mm_struct *mm)
+{
+ return mm->context.untag_mask;
+}
+
+static inline void mm_reset_untag_mask(struct mm_struct *mm)
+{
+ mm->context.untag_mask = -1UL;
+}
+
+#define arch_pgtable_dma_compat arch_pgtable_dma_compat
+static inline bool arch_pgtable_dma_compat(struct mm_struct *mm)
+{
+ return !mm_lam_cr3_mask(mm) ||
+ test_bit(MM_CONTEXT_FORCE_TAGGED_SVA, &mm->context.flags);
+}
+#else
+
+static inline unsigned long mm_lam_cr3_mask(struct mm_struct *mm)
+{
+ return 0;
}
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
- struct task_struct *tsk)
+static inline void dup_lam(struct mm_struct *oldmm, struct mm_struct *mm)
{
- unsigned cpu = smp_processor_id();
+}
- if (likely(prev != next)) {
-#ifdef CONFIG_SMP
- percpu_write(cpu_tlbstate.state, TLBSTATE_OK);
- percpu_write(cpu_tlbstate.active_mm, next);
+static inline void mm_reset_untag_mask(struct mm_struct *mm)
+{
+}
#endif
- cpumask_set_cpu(cpu, mm_cpumask(next));
- /* Re-load page tables */
- load_cr3(next->pgd);
+#define enter_lazy_tlb enter_lazy_tlb
+extern void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk);
- /* stop flush ipis for the previous mm */
- cpumask_clear_cpu(cpu, mm_cpumask(prev));
+/*
+ * Init a new mm. Used on mm copies, like at fork()
+ * and on mm's that are brand-new, like at execve().
+ */
+#define init_new_context init_new_context
+static inline int init_new_context(struct task_struct *tsk,
+ struct mm_struct *mm)
+{
+ mutex_init(&mm->context.lock);
- /*
- * load the LDT, if the LDT is different:
- */
- if (unlikely(prev->context.ldt != next->context.ldt))
- load_LDT_nolock(&next->context);
- }
-#ifdef CONFIG_SMP
- else {
- percpu_write(cpu_tlbstate.state, TLBSTATE_OK);
- BUG_ON(percpu_read(cpu_tlbstate.active_mm) != next);
-
- if (!cpumask_test_and_set_cpu(cpu, mm_cpumask(next))) {
- /* We were in lazy tlb mode and leave_mm disabled
- * tlb flush IPI delivery. We must reload CR3
- * to make sure to use no freed page tables.
- */
- load_cr3(next->pgd);
- load_LDT_nolock(&next->context);
- }
+ mm->context.ctx_id = atomic64_inc_return(&last_mm_ctx_id);
+ atomic64_set(&mm->context.tlb_gen, 0);
+
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+ if (cpu_feature_enabled(X86_FEATURE_OSPKE)) {
+ /* pkey 0 is the default and allocated implicitly */
+ mm->context.pkey_allocation_map = 0x1;
+ /* -1 means unallocated or invalid */
+ mm->context.execute_only_pkey = -1;
}
#endif
+ mm_reset_untag_mask(mm);
+ init_new_context_ldt(mm);
+ return 0;
}
+#define destroy_context destroy_context
+static inline void destroy_context(struct mm_struct *mm)
+{
+ destroy_context_ldt(mm);
+}
+
+extern void switch_mm(struct mm_struct *prev, struct mm_struct *next,
+ struct task_struct *tsk);
+
+extern void switch_mm_irqs_off(struct mm_struct *prev, struct mm_struct *next,
+ struct task_struct *tsk);
+#define switch_mm_irqs_off switch_mm_irqs_off
+
#define activate_mm(prev, next) \
do { \
- paravirt_activate_mm((prev), (next)); \
+ paravirt_enter_mmap(next); \
switch_mm((prev), (next), NULL); \
} while (0);
#ifdef CONFIG_X86_32
#define deactivate_mm(tsk, mm) \
do { \
- lazy_load_gs(0); \
+ loadsegment(gs, 0); \
} while (0)
#else
#define deactivate_mm(tsk, mm) \
@@ -90,4 +191,74 @@ do { \
} while (0)
#endif
+static inline void arch_dup_pkeys(struct mm_struct *oldmm,
+ struct mm_struct *mm)
+{
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+ if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
+ return;
+
+ /* Duplicate the oldmm pkey state in mm: */
+ mm->context.pkey_allocation_map = oldmm->context.pkey_allocation_map;
+ mm->context.execute_only_pkey = oldmm->context.execute_only_pkey;
+#endif
+}
+
+static inline int arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
+{
+ arch_dup_pkeys(oldmm, mm);
+ paravirt_enter_mmap(mm);
+ dup_lam(oldmm, mm);
+ return ldt_dup_context(oldmm, mm);
+}
+
+static inline void arch_exit_mmap(struct mm_struct *mm)
+{
+ paravirt_arch_exit_mmap(mm);
+ ldt_arch_exit_mmap(mm);
+}
+
+#ifdef CONFIG_X86_64
+static inline bool is_64bit_mm(struct mm_struct *mm)
+{
+ return !IS_ENABLED(CONFIG_IA32_EMULATION) ||
+ !test_bit(MM_CONTEXT_UPROBE_IA32, &mm->context.flags);
+}
+#else
+static inline bool is_64bit_mm(struct mm_struct *mm)
+{
+ return false;
+}
+#endif
+
+static inline void arch_unmap(struct mm_struct *mm, unsigned long start,
+ unsigned long end)
+{
+}
+
+/*
+ * We only want to enforce protection keys on the current process
+ * because we effectively have no access to PKRU for other
+ * processes or any way to tell *which * PKRU in a threaded
+ * process we could use.
+ *
+ * So do not enforce things if the VMA is not from the current
+ * mm, or if we are in a kernel thread.
+ */
+static inline bool arch_vma_access_permitted(struct vm_area_struct *vma,
+ bool write, bool execute, bool foreign)
+{
+ /* pkeys never affect instruction fetches */
+ if (execute)
+ return true;
+ /* allow access if the VMA is not one from this process */
+ if (foreign || vma_is_foreign(vma))
+ return true;
+ return __pkru_allows_pkey(vma_pkey(vma), write);
+}
+
+unsigned long __get_current_cr3_fast(void);
+
+#include <asm-generic/mmu_context.h>
+
#endif /* _ASM_X86_MMU_CONTEXT_H */
diff --git a/arch/x86/include/asm/mmx.h b/arch/x86/include/asm/mmx.h
deleted file mode 100644
index 5cbf3135b971..000000000000
--- a/arch/x86/include/asm/mmx.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef _ASM_X86_MMX_H
-#define _ASM_X86_MMX_H
-
-/*
- * MMX 3Dnow! helper operations
- */
-
-#include <linux/types.h>
-
-extern void *_mmx_memcpy(void *to, const void *from, size_t size);
-extern void mmx_clear_page(void *page);
-extern void mmx_copy_page(void *to, void *from);
-
-#endif /* _ASM_X86_MMX_H */
diff --git a/arch/x86/include/asm/mmzone.h b/arch/x86/include/asm/mmzone.h
index 64217ea16a36..c41b41edd691 100644
--- a/arch/x86/include/asm/mmzone.h
+++ b/arch/x86/include/asm/mmzone.h
@@ -1,5 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifdef CONFIG_X86_32
-# include "mmzone_32.h"
+# include <asm/mmzone_32.h>
#else
-# include "mmzone_64.h"
+# include <asm/mmzone_64.h>
#endif
diff --git a/arch/x86/include/asm/mmzone_32.h b/arch/x86/include/asm/mmzone_32.h
index 91df7c51806c..2d4515e8b7df 100644
--- a/arch/x86/include/asm/mmzone_32.h
+++ b/arch/x86/include/asm/mmzone_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Written by Pat Gaughen (gone@us.ibm.com) Mar 2002
*
@@ -11,89 +12,6 @@
#ifdef CONFIG_NUMA
extern struct pglist_data *node_data[];
#define NODE_DATA(nid) (node_data[nid])
-
-#include <asm/numaq.h>
-/* summit or generic arch */
-#include <asm/srat.h>
-
-extern int get_memcfg_numa_flat(void);
-/*
- * This allows any one NUMA architecture to be compiled
- * for, and still fall back to the flat function if it
- * fails.
- */
-static inline void get_memcfg_numa(void)
-{
-
- if (get_memcfg_numaq())
- return;
- if (get_memcfg_from_srat())
- return;
- get_memcfg_numa_flat();
-}
-
-extern void resume_map_numa_kva(pgd_t *pgd);
-
-#else /* !CONFIG_NUMA */
-
-#define get_memcfg_numa get_memcfg_numa_flat
-
-static inline void resume_map_numa_kva(pgd_t *pgd) {}
-
#endif /* CONFIG_NUMA */
-#ifdef CONFIG_DISCONTIGMEM
-
-/*
- * generic node memory support, the following assumptions apply:
- *
- * 1) memory comes in 64Mb contiguous chunks which are either present or not
- * 2) we will not have more than 64Gb in total
- *
- * for now assume that 64Gb is max amount of RAM for whole system
- * 64Gb / 4096bytes/page = 16777216 pages
- */
-#define MAX_NR_PAGES 16777216
-#define MAX_ELEMENTS 1024
-#define PAGES_PER_ELEMENT (MAX_NR_PAGES/MAX_ELEMENTS)
-
-extern s8 physnode_map[];
-
-static inline int pfn_to_nid(unsigned long pfn)
-{
-#ifdef CONFIG_NUMA
- return((int) physnode_map[(pfn) / PAGES_PER_ELEMENT]);
-#else
- return 0;
-#endif
-}
-
-/*
- * Following are macros that each numa implmentation must define.
- */
-
-#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
-#define node_end_pfn(nid) \
-({ \
- pg_data_t *__pgdat = NODE_DATA(nid); \
- __pgdat->node_start_pfn + __pgdat->node_spanned_pages; \
-})
-
-static inline int pfn_valid(int pfn)
-{
- int nid = pfn_to_nid(pfn);
-
- if (nid >= 0)
- return (pfn < node_end_pfn(nid));
- return 0;
-}
-
-#endif /* CONFIG_DISCONTIGMEM */
-
-#ifdef CONFIG_NEED_MULTIPLE_NODES
-/* always use node 0 for bootmem on this numa platform */
-#define bootmem_arch_preferred_node(__bdata, size, align, goal, limit) \
- (NODE_DATA(0)->bdata)
-#endif /* CONFIG_NEED_MULTIPLE_NODES */
-
#endif /* _ASM_X86_MMZONE_32_H */
diff --git a/arch/x86/include/asm/mmzone_64.h b/arch/x86/include/asm/mmzone_64.h
index 288b96f815a6..0c585046f744 100644
--- a/arch/x86/include/asm/mmzone_64.h
+++ b/arch/x86/include/asm/mmzone_64.h
@@ -1,43 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/* K8 NUMA support */
/* Copyright 2002,2003 by Andi Kleen, SuSE Labs */
/* 2.5 Version loosely based on the NUMAQ Code by Pat Gaughen. */
#ifndef _ASM_X86_MMZONE_64_H
#define _ASM_X86_MMZONE_64_H
-
#ifdef CONFIG_NUMA
#include <linux/mmdebug.h>
-
#include <asm/smp.h>
-/* Simple perfect hash to map physical addresses to node numbers */
-struct memnode {
- int shift;
- unsigned int mapsize;
- s16 *map;
- s16 embedded_map[64 - 8];
-} ____cacheline_aligned; /* total size = 128 bytes */
-extern struct memnode memnode;
-#define memnode_shift memnode.shift
-#define memnodemap memnode.map
-#define memnodemapsize memnode.mapsize
-
extern struct pglist_data *node_data[];
-static inline __attribute__((pure)) int phys_to_nid(unsigned long addr)
-{
- unsigned nid;
- VIRTUAL_BUG_ON(!memnodemap);
- nid = memnodemap[addr >> memnode_shift];
- VIRTUAL_BUG_ON(nid >= MAX_NUMNODES || !node_data[nid]);
- return nid;
-}
-
#define NODE_DATA(nid) (node_data[nid])
-#define node_start_pfn(nid) (NODE_DATA(nid)->node_start_pfn)
-#define node_end_pfn(nid) (NODE_DATA(nid)->node_start_pfn + \
- NODE_DATA(nid)->node_spanned_pages)
#endif
#endif /* _ASM_X86_MMZONE_64_H */
diff --git a/arch/x86/include/asm/module.h b/arch/x86/include/asm/module.h
index 67763c5d8b4e..e988bac0a4a1 100644
--- a/arch/x86/include/asm/module.h
+++ b/arch/x86/include/asm/module.h
@@ -1,66 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MODULE_H
#define _ASM_X86_MODULE_H
#include <asm-generic/module.h>
+#include <asm/orc_types.h>
-#ifdef CONFIG_X86_64
-/* X86_64 does not define MODULE_PROC_FAMILY */
-#elif defined CONFIG_M386
-#define MODULE_PROC_FAMILY "386 "
-#elif defined CONFIG_M486
-#define MODULE_PROC_FAMILY "486 "
-#elif defined CONFIG_M586
-#define MODULE_PROC_FAMILY "586 "
-#elif defined CONFIG_M586TSC
-#define MODULE_PROC_FAMILY "586TSC "
-#elif defined CONFIG_M586MMX
-#define MODULE_PROC_FAMILY "586MMX "
-#elif defined CONFIG_MCORE2
-#define MODULE_PROC_FAMILY "CORE2 "
-#elif defined CONFIG_MATOM
-#define MODULE_PROC_FAMILY "ATOM "
-#elif defined CONFIG_M686
-#define MODULE_PROC_FAMILY "686 "
-#elif defined CONFIG_MPENTIUMII
-#define MODULE_PROC_FAMILY "PENTIUMII "
-#elif defined CONFIG_MPENTIUMIII
-#define MODULE_PROC_FAMILY "PENTIUMIII "
-#elif defined CONFIG_MPENTIUMM
-#define MODULE_PROC_FAMILY "PENTIUMM "
-#elif defined CONFIG_MPENTIUM4
-#define MODULE_PROC_FAMILY "PENTIUM4 "
-#elif defined CONFIG_MK6
-#define MODULE_PROC_FAMILY "K6 "
-#elif defined CONFIG_MK7
-#define MODULE_PROC_FAMILY "K7 "
-#elif defined CONFIG_MK8
-#define MODULE_PROC_FAMILY "K8 "
-#elif defined CONFIG_X86_ELAN
-#define MODULE_PROC_FAMILY "ELAN "
-#elif defined CONFIG_MCRUSOE
-#define MODULE_PROC_FAMILY "CRUSOE "
-#elif defined CONFIG_MEFFICEON
-#define MODULE_PROC_FAMILY "EFFICEON "
-#elif defined CONFIG_MWINCHIPC6
-#define MODULE_PROC_FAMILY "WINCHIPC6 "
-#elif defined CONFIG_MWINCHIP3D
-#define MODULE_PROC_FAMILY "WINCHIP3D "
-#elif defined CONFIG_MCYRIXIII
-#define MODULE_PROC_FAMILY "CYRIXIII "
-#elif defined CONFIG_MVIAC3_2
-#define MODULE_PROC_FAMILY "VIAC3-2 "
-#elif defined CONFIG_MVIAC7
-#define MODULE_PROC_FAMILY "VIAC7 "
-#elif defined CONFIG_MGEODEGX1
-#define MODULE_PROC_FAMILY "GEODEGX1 "
-#elif defined CONFIG_MGEODE_LX
-#define MODULE_PROC_FAMILY "GEODE "
-#else
-#error unknown processor family
-#endif
-
-#ifdef CONFIG_X86_32
-# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
+struct mod_arch_specific {
+#ifdef CONFIG_UNWINDER_ORC
+ unsigned int num_orcs;
+ int *orc_unwind_ip;
+ struct orc_entry *orc_unwind;
#endif
+};
#endif /* _ASM_X86_MODULE_H */
diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h
index 9c7d95f6174b..e90ac7e9ae2c 100644
--- a/arch/x86/include/asm/mpspec.h
+++ b/arch/x86/include/asm/mpspec.h
@@ -1,13 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MPSPEC_H
#define _ASM_X86_MPSPEC_H
-#include <linux/init.h>
#include <asm/mpspec_def.h>
#include <asm/x86_init.h>
#include <asm/apicdef.h>
-extern int apic_version[];
extern int pic_mode;
#ifdef CONFIG_X86_32
@@ -26,12 +25,6 @@ extern int pic_mode;
extern unsigned int def_to_bigsmp;
-#ifdef CONFIG_X86_NUMAQ
-extern int mp_bus_id_to_node[MAX_MP_BUSSES];
-extern int mp_bus_id_to_local[MAX_MP_BUSSES];
-extern int quad_local_to_mp_bus_id [NR_CPUS/4][4];
-#endif
-
#else /* CONFIG_X86_64: */
#define MAX_MP_BUSSES 256
@@ -40,15 +33,14 @@ extern int quad_local_to_mp_bus_id [NR_CPUS/4][4];
#endif /* CONFIG_X86_64 */
-#if defined(CONFIG_MCA) || defined(CONFIG_EISA)
+#ifdef CONFIG_EISA
extern int mp_bus_id_to_type[MAX_MP_BUSSES];
#endif
extern DECLARE_BITMAP(mp_bus_not_pci, MAX_MP_BUSSES);
extern unsigned int boot_cpu_physical_apicid;
-extern unsigned int max_physical_apicid;
-extern int mpc_default_type;
+extern u8 boot_cpu_apic_version;
extern unsigned long mp_lapic_addr;
#ifdef CONFIG_X86_LOCAL_APIC
@@ -73,37 +65,18 @@ static inline void find_smp_config(void)
}
#ifdef CONFIG_X86_MPPARSE
-extern void early_reserve_e820_mpc_new(void);
+extern void e820__memblock_alloc_reserved_mpc_new(void);
extern int enable_update_mptable;
-extern int default_mpc_apic_id(struct mpc_cpu *m);
-extern void default_smp_read_mpc_oem(struct mpc_table *mpc);
-# ifdef CONFIG_X86_IO_APIC
-extern void default_mpc_oem_bus_info(struct mpc_bus *m, char *str);
-# else
-# define default_mpc_oem_bus_info NULL
-# endif
extern void default_find_smp_config(void);
extern void default_get_smp_config(unsigned int early);
#else
-static inline void early_reserve_e820_mpc_new(void) { }
+static inline void e820__memblock_alloc_reserved_mpc_new(void) { }
#define enable_update_mptable 0
-#define default_mpc_apic_id NULL
-#define default_smp_read_mpc_oem NULL
-#define default_mpc_oem_bus_info NULL
#define default_find_smp_config x86_init_noop
#define default_get_smp_config x86_init_uint_noop
#endif
-void __cpuinit generic_processor_info(int apicid, int version);
-#ifdef CONFIG_ACPI
-extern void mp_register_ioapic(int id, u32 address, u32 gsi_base);
-extern void mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
- u32 gsi);
-extern void mp_config_acpi_legacy_irqs(void);
-struct device;
-extern int mp_register_gsi(struct device *dev, u32 gsi, int edge_level,
- int active_high_low);
-#endif /* CONFIG_ACPI */
+int generic_processor_info(int apicid, int version);
#define PHYSID_ARRAY_SIZE BITS_TO_LONGS(MAX_LOCAL_APIC)
@@ -168,8 +141,4 @@ static inline void physid_set_mask_of_physid(int physid, physid_mask_t *map)
extern physid_mask_t phys_cpu_present_map;
-extern int generic_mps_oem_check(struct mpc_table *, char *, char *);
-
-extern int default_acpi_madt_oem_check(char *, char *);
-
#endif /* _ASM_X86_MPSPEC_H */
diff --git a/arch/x86/include/asm/mpspec_def.h b/arch/x86/include/asm/mpspec_def.h
index c0a955a9a087..6fb923a34309 100644
--- a/arch/x86/include/asm/mpspec_def.h
+++ b/arch/x86/include/asm/mpspec_def.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MPSPEC_DEF_H
#define _ASM_X86_MPSPEC_DEF_H
@@ -58,7 +59,7 @@ struct mpc_table {
#define MP_TRANSLATION 192
#define CPU_ENABLED 1 /* Processor is available */
-#define CPU_BOOTPROCESSOR 2 /* Processor is the BP */
+#define CPU_BOOTPROCESSOR 2 /* Processor is the boot CPU */
#define CPU_STEPPING_MASK 0x000F
#define CPU_MODEL_MASK 0x00F0
@@ -84,7 +85,7 @@ struct mpc_bus {
#define BUSTYPE_EISA "EISA"
#define BUSTYPE_ISA "ISA"
#define BUSTYPE_INTERN "INTERN" /* Internal BUS */
-#define BUSTYPE_MCA "MCA"
+#define BUSTYPE_MCA "MCA" /* Obsolete */
#define BUSTYPE_VL "VL" /* Local bus */
#define BUSTYPE_PCI "PCI"
#define BUSTYPE_PCMCIA "PCMCIA"
@@ -127,9 +128,17 @@ enum mp_irq_source_types {
mp_ExtINT = 3
};
-#define MP_IRQDIR_DEFAULT 0
-#define MP_IRQDIR_HIGH 1
-#define MP_IRQDIR_LOW 3
+#define MP_IRQPOL_DEFAULT 0x0
+#define MP_IRQPOL_ACTIVE_HIGH 0x1
+#define MP_IRQPOL_RESERVED 0x2
+#define MP_IRQPOL_ACTIVE_LOW 0x3
+#define MP_IRQPOL_MASK 0x3
+
+#define MP_IRQTRIG_DEFAULT 0x0
+#define MP_IRQTRIG_EDGE 0x4
+#define MP_IRQTRIG_RESERVED 0x8
+#define MP_IRQTRIG_LEVEL 0xc
+#define MP_IRQTRIG_MASK 0xc
#define MP_APIC_ALL 0xFF
@@ -169,6 +178,5 @@ enum mp_bustype {
MP_BUS_ISA = 1,
MP_BUS_EISA,
MP_BUS_PCI,
- MP_BUS_MCA,
};
#endif /* _ASM_X86_MPSPEC_DEF_H */
diff --git a/arch/x86/include/asm/mrst-vrtc.h b/arch/x86/include/asm/mrst-vrtc.h
deleted file mode 100644
index 73668abdbedf..000000000000
--- a/arch/x86/include/asm/mrst-vrtc.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _MRST_VRTC_H
-#define _MRST_VRTC_H
-
-extern unsigned char vrtc_cmos_read(unsigned char reg);
-extern void vrtc_cmos_write(unsigned char val, unsigned char reg);
-extern unsigned long vrtc_get_time(void);
-extern int vrtc_set_mmss(unsigned long nowtime);
-
-#endif
diff --git a/arch/x86/include/asm/mrst.h b/arch/x86/include/asm/mrst.h
deleted file mode 100644
index 719f00b28ff5..000000000000
--- a/arch/x86/include/asm/mrst.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * mrst.h: Intel Moorestown platform specific setup code
- *
- * (C) Copyright 2009 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2
- * of the License.
- */
-#ifndef _ASM_X86_MRST_H
-#define _ASM_X86_MRST_H
-
-#include <linux/sfi.h>
-
-extern int pci_mrst_init(void);
-extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
-extern int sfi_mrtc_num;
-extern struct sfi_rtc_table_entry sfi_mrtc_array[];
-
-/*
- * Medfield is the follow-up of Moorestown, it combines two chip solution into
- * one. Other than that it also added always-on and constant tsc and lapic
- * timers. Medfield is the platform name, and the chip name is called Penwell
- * we treat Medfield/Penwell as a variant of Moorestown. Penwell can be
- * identified via MSRs.
- */
-enum mrst_cpu_type {
- MRST_CPU_CHIP_LINCROFT = 1,
- MRST_CPU_CHIP_PENWELL,
-};
-
-extern enum mrst_cpu_type __mrst_cpu_chip;
-static inline enum mrst_cpu_type mrst_identify_cpu(void)
-{
- return __mrst_cpu_chip;
-}
-
-enum mrst_timer_options {
- MRST_TIMER_DEFAULT,
- MRST_TIMER_APBT_ONLY,
- MRST_TIMER_LAPIC_APBT,
-};
-
-extern enum mrst_timer_options mrst_timer_options;
-
-#define SFI_MTMR_MAX_NUM 8
-#define SFI_MRTC_MAX 8
-
-extern struct console early_mrst_console;
-extern void mrst_early_console_init(void);
-
-extern struct console early_hsu_console;
-extern void hsu_early_console_init(void);
-
-extern void intel_scu_devices_create(void);
-extern void intel_scu_devices_destroy(void);
-
-/* VRTC timer */
-#define MRST_VRTC_MAP_SZ (1024)
-/*#define MRST_VRTC_PGOFFSET (0xc00) */
-
-extern void mrst_rtc_init(void);
-
-#endif /* _ASM_X86_MRST_H */
diff --git a/arch/x86/include/asm/msgbuf.h b/arch/x86/include/asm/msgbuf.h
deleted file mode 100644
index 809134c644a6..000000000000
--- a/arch/x86/include/asm/msgbuf.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/msgbuf.h>
diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h
index 79ce5685ab64..49bb4f2bd300 100644
--- a/arch/x86/include/asm/mshyperv.h
+++ b/arch/x86/include/asm/mshyperv.h
@@ -1,14 +1,291 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MSHYPER_H
#define _ASM_X86_MSHYPER_H
#include <linux/types.h>
-#include <asm/hyperv.h>
+#include <linux/nmi.h>
+#include <linux/msi.h>
+#include <asm/io.h>
+#include <asm/hyperv-tlfs.h>
+#include <asm/nospec-branch.h>
+#include <asm/paravirt.h>
+#include <asm/mshyperv.h>
-struct ms_hyperv_info {
- u32 features;
- u32 hints;
-};
+/*
+ * Hyper-V always provides a single IO-APIC at this MMIO address.
+ * Ideally, the value should be looked up in ACPI tables, but it
+ * is needed for mapping the IO-APIC early in boot on Confidential
+ * VMs, before ACPI functions can be used.
+ */
+#define HV_IOAPIC_BASE_ADDRESS 0xfec00000
-extern struct ms_hyperv_info ms_hyperv;
+#define HV_VTL_NORMAL 0x0
+#define HV_VTL_SECURE 0x1
+#define HV_VTL_MGMT 0x2
+
+union hv_ghcb;
+
+DECLARE_STATIC_KEY_FALSE(isolation_type_snp);
+
+typedef int (*hyperv_fill_flush_list_func)(
+ struct hv_guest_mapping_flush_list *flush,
+ void *data);
+
+void hyperv_vector_handler(struct pt_regs *regs);
+
+static inline unsigned char hv_get_nmi_reason(void)
+{
+ return 0;
+}
+
+#if IS_ENABLED(CONFIG_HYPERV)
+extern int hyperv_init_cpuhp;
+
+extern void *hv_hypercall_pg;
+
+extern u64 hv_current_partition_id;
+
+extern union hv_ghcb * __percpu *hv_ghcb_pg;
+
+int hv_call_deposit_pages(int node, u64 partition_id, u32 num_pages);
+int hv_call_add_logical_proc(int node, u32 lp_index, u32 acpi_id);
+int hv_call_create_vp(int node, u64 partition_id, u32 vp_index, u32 flags);
+
+static inline u64 hv_do_hypercall(u64 control, void *input, void *output)
+{
+ u64 input_address = input ? virt_to_phys(input) : 0;
+ u64 output_address = output ? virt_to_phys(output) : 0;
+ u64 hv_status;
+
+#ifdef CONFIG_X86_64
+ if (!hv_hypercall_pg)
+ return U64_MAX;
+
+ __asm__ __volatile__("mov %4, %%r8\n"
+ CALL_NOSPEC
+ : "=a" (hv_status), ASM_CALL_CONSTRAINT,
+ "+c" (control), "+d" (input_address)
+ : "r" (output_address),
+ THUNK_TARGET(hv_hypercall_pg)
+ : "cc", "memory", "r8", "r9", "r10", "r11");
+#else
+ u32 input_address_hi = upper_32_bits(input_address);
+ u32 input_address_lo = lower_32_bits(input_address);
+ u32 output_address_hi = upper_32_bits(output_address);
+ u32 output_address_lo = lower_32_bits(output_address);
+
+ if (!hv_hypercall_pg)
+ return U64_MAX;
+
+ __asm__ __volatile__(CALL_NOSPEC
+ : "=A" (hv_status),
+ "+c" (input_address_lo), ASM_CALL_CONSTRAINT
+ : "A" (control),
+ "b" (input_address_hi),
+ "D"(output_address_hi), "S"(output_address_lo),
+ THUNK_TARGET(hv_hypercall_pg)
+ : "cc", "memory");
+#endif /* !x86_64 */
+ return hv_status;
+}
+
+/* Hypercall to the L0 hypervisor */
+static inline u64 hv_do_nested_hypercall(u64 control, void *input, void *output)
+{
+ return hv_do_hypercall(control | HV_HYPERCALL_NESTED, input, output);
+}
+
+/* Fast hypercall with 8 bytes of input and no output */
+static inline u64 _hv_do_fast_hypercall8(u64 control, u64 input1)
+{
+ u64 hv_status;
+
+#ifdef CONFIG_X86_64
+ {
+ __asm__ __volatile__(CALL_NOSPEC
+ : "=a" (hv_status), ASM_CALL_CONSTRAINT,
+ "+c" (control), "+d" (input1)
+ : THUNK_TARGET(hv_hypercall_pg)
+ : "cc", "r8", "r9", "r10", "r11");
+ }
+#else
+ {
+ u32 input1_hi = upper_32_bits(input1);
+ u32 input1_lo = lower_32_bits(input1);
+
+ __asm__ __volatile__ (CALL_NOSPEC
+ : "=A"(hv_status),
+ "+c"(input1_lo),
+ ASM_CALL_CONSTRAINT
+ : "A" (control),
+ "b" (input1_hi),
+ THUNK_TARGET(hv_hypercall_pg)
+ : "cc", "edi", "esi");
+ }
+#endif
+ return hv_status;
+}
+
+static inline u64 hv_do_fast_hypercall8(u16 code, u64 input1)
+{
+ u64 control = (u64)code | HV_HYPERCALL_FAST_BIT;
+
+ return _hv_do_fast_hypercall8(control, input1);
+}
+
+static inline u64 hv_do_fast_nested_hypercall8(u16 code, u64 input1)
+{
+ u64 control = (u64)code | HV_HYPERCALL_FAST_BIT | HV_HYPERCALL_NESTED;
+
+ return _hv_do_fast_hypercall8(control, input1);
+}
+
+/* Fast hypercall with 16 bytes of input */
+static inline u64 _hv_do_fast_hypercall16(u64 control, u64 input1, u64 input2)
+{
+ u64 hv_status;
+
+#ifdef CONFIG_X86_64
+ {
+ __asm__ __volatile__("mov %4, %%r8\n"
+ CALL_NOSPEC
+ : "=a" (hv_status), ASM_CALL_CONSTRAINT,
+ "+c" (control), "+d" (input1)
+ : "r" (input2),
+ THUNK_TARGET(hv_hypercall_pg)
+ : "cc", "r8", "r9", "r10", "r11");
+ }
+#else
+ {
+ u32 input1_hi = upper_32_bits(input1);
+ u32 input1_lo = lower_32_bits(input1);
+ u32 input2_hi = upper_32_bits(input2);
+ u32 input2_lo = lower_32_bits(input2);
+
+ __asm__ __volatile__ (CALL_NOSPEC
+ : "=A"(hv_status),
+ "+c"(input1_lo), ASM_CALL_CONSTRAINT
+ : "A" (control), "b" (input1_hi),
+ "D"(input2_hi), "S"(input2_lo),
+ THUNK_TARGET(hv_hypercall_pg)
+ : "cc");
+ }
+#endif
+ return hv_status;
+}
+
+static inline u64 hv_do_fast_hypercall16(u16 code, u64 input1, u64 input2)
+{
+ u64 control = (u64)code | HV_HYPERCALL_FAST_BIT;
+
+ return _hv_do_fast_hypercall16(control, input1, input2);
+}
+
+static inline u64 hv_do_fast_nested_hypercall16(u16 code, u64 input1, u64 input2)
+{
+ u64 control = (u64)code | HV_HYPERCALL_FAST_BIT | HV_HYPERCALL_NESTED;
+
+ return _hv_do_fast_hypercall16(control, input1, input2);
+}
+
+extern struct hv_vp_assist_page **hv_vp_assist_page;
+
+static inline struct hv_vp_assist_page *hv_get_vp_assist_page(unsigned int cpu)
+{
+ if (!hv_vp_assist_page)
+ return NULL;
+
+ return hv_vp_assist_page[cpu];
+}
+
+void __init hyperv_init(void);
+void hyperv_setup_mmu_ops(void);
+void set_hv_tscchange_cb(void (*cb)(void));
+void clear_hv_tscchange_cb(void);
+void hyperv_stop_tsc_emulation(void);
+int hyperv_flush_guest_mapping(u64 as);
+int hyperv_flush_guest_mapping_range(u64 as,
+ hyperv_fill_flush_list_func fill_func, void *data);
+int hyperv_fill_flush_guest_mapping_list(
+ struct hv_guest_mapping_flush_list *flush,
+ u64 start_gfn, u64 end_gfn);
+
+#ifdef CONFIG_X86_64
+void hv_apic_init(void);
+void __init hv_init_spinlocks(void);
+bool hv_vcpu_is_preempted(int vcpu);
+#else
+static inline void hv_apic_init(void) {}
+#endif
+
+struct irq_domain *hv_create_pci_msi_domain(void);
+
+int hv_map_ioapic_interrupt(int ioapic_id, bool level, int vcpu, int vector,
+ struct hv_interrupt_entry *entry);
+int hv_unmap_ioapic_interrupt(int ioapic_id, struct hv_interrupt_entry *entry);
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+void hv_ghcb_msr_write(u64 msr, u64 value);
+void hv_ghcb_msr_read(u64 msr, u64 *value);
+bool hv_ghcb_negotiate_protocol(void);
+void __noreturn hv_ghcb_terminate(unsigned int set, unsigned int reason);
+void hv_vtom_init(void);
+#else
+static inline void hv_ghcb_msr_write(u64 msr, u64 value) {}
+static inline void hv_ghcb_msr_read(u64 msr, u64 *value) {}
+static inline bool hv_ghcb_negotiate_protocol(void) { return false; }
+static inline void hv_ghcb_terminate(unsigned int set, unsigned int reason) {}
+static inline void hv_vtom_init(void) {}
+#endif
+
+extern bool hv_isolation_type_snp(void);
+
+static inline bool hv_is_synic_reg(unsigned int reg)
+{
+ return (reg >= HV_REGISTER_SCONTROL) &&
+ (reg <= HV_REGISTER_SINT15);
+}
+
+static inline bool hv_is_sint_reg(unsigned int reg)
+{
+ return (reg >= HV_REGISTER_SINT0) &&
+ (reg <= HV_REGISTER_SINT15);
+}
+
+u64 hv_get_register(unsigned int reg);
+void hv_set_register(unsigned int reg, u64 value);
+u64 hv_get_non_nested_register(unsigned int reg);
+void hv_set_non_nested_register(unsigned int reg, u64 value);
+
+#else /* CONFIG_HYPERV */
+static inline void hyperv_init(void) {}
+static inline void hyperv_setup_mmu_ops(void) {}
+static inline void set_hv_tscchange_cb(void (*cb)(void)) {}
+static inline void clear_hv_tscchange_cb(void) {}
+static inline void hyperv_stop_tsc_emulation(void) {};
+static inline struct hv_vp_assist_page *hv_get_vp_assist_page(unsigned int cpu)
+{
+ return NULL;
+}
+static inline int hyperv_flush_guest_mapping(u64 as) { return -1; }
+static inline int hyperv_flush_guest_mapping_range(u64 as,
+ hyperv_fill_flush_list_func fill_func, void *data)
+{
+ return -1;
+}
+static inline void hv_set_register(unsigned int reg, u64 value) { }
+static inline u64 hv_get_register(unsigned int reg) { return 0; }
+static inline void hv_set_non_nested_register(unsigned int reg, u64 value) { }
+static inline u64 hv_get_non_nested_register(unsigned int reg) { return 0; }
+#endif /* CONFIG_HYPERV */
+
+
+#ifdef CONFIG_HYPERV_VTL_MODE
+void __init hv_vtl_init_platform(void);
+#else
+static inline void __init hv_vtl_init_platform(void) {}
+#endif
+
+#include <asm-generic/mshyperv.h>
#endif
diff --git a/arch/x86/include/asm/msi.h b/arch/x86/include/asm/msi.h
new file mode 100644
index 000000000000..935c6d470341
--- /dev/null
+++ b/arch/x86/include/asm/msi.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_MSI_H
+#define _ASM_X86_MSI_H
+#include <asm/hw_irq.h>
+#include <asm/irqdomain.h>
+
+typedef struct irq_alloc_info msi_alloc_info_t;
+
+int pci_msi_prepare(struct irq_domain *domain, struct device *dev, int nvec,
+ msi_alloc_info_t *arg);
+
+/* Structs and defines for the X86 specific MSI message format */
+
+typedef struct x86_msi_data {
+ union {
+ struct {
+ u32 vector : 8,
+ delivery_mode : 3,
+ dest_mode_logical : 1,
+ reserved : 2,
+ active_low : 1,
+ is_level : 1;
+ };
+ u32 dmar_subhandle;
+ };
+} __attribute__ ((packed)) arch_msi_msg_data_t;
+#define arch_msi_msg_data x86_msi_data
+
+typedef struct x86_msi_addr_lo {
+ union {
+ struct {
+ u32 reserved_0 : 2,
+ dest_mode_logical : 1,
+ redirect_hint : 1,
+ reserved_1 : 1,
+ virt_destid_8_14 : 7,
+ destid_0_7 : 8,
+ base_address : 12;
+ };
+ struct {
+ u32 dmar_reserved_0 : 2,
+ dmar_index_15 : 1,
+ dmar_subhandle_valid : 1,
+ dmar_format : 1,
+ dmar_index_0_14 : 15,
+ dmar_base_address : 12;
+ };
+ };
+} __attribute__ ((packed)) arch_msi_msg_addr_lo_t;
+#define arch_msi_msg_addr_lo x86_msi_addr_lo
+
+#define X86_MSI_BASE_ADDRESS_LOW (0xfee00000 >> 20)
+
+typedef struct x86_msi_addr_hi {
+ u32 reserved : 8,
+ destid_8_31 : 24;
+} __attribute__ ((packed)) arch_msi_msg_addr_hi_t;
+#define arch_msi_msg_addr_hi x86_msi_addr_hi
+
+#define X86_MSI_BASE_ADDRESS_HIGH (0)
+
+struct msi_msg;
+u32 x86_msi_msg_get_destid(struct msi_msg *msg, bool extid);
+
+#define X86_VECTOR_MSI_FLAGS_SUPPORTED \
+ (MSI_GENERIC_FLAGS_MASK | MSI_FLAG_PCI_MSIX | MSI_FLAG_PCI_MSIX_ALLOC_DYN)
+
+#define X86_VECTOR_MSI_FLAGS_REQUIRED \
+ (MSI_FLAG_USE_DEF_DOM_OPS | MSI_FLAG_USE_DEF_CHIP_OPS)
+
+#endif /* _ASM_X86_MSI_H */
diff --git a/arch/x86/include/asm/msidef.h b/arch/x86/include/asm/msidef.h
deleted file mode 100644
index 4cc48af23fef..000000000000
--- a/arch/x86/include/asm/msidef.h
+++ /dev/null
@@ -1,56 +0,0 @@
-#ifndef _ASM_X86_MSIDEF_H
-#define _ASM_X86_MSIDEF_H
-
-/*
- * Constants for Intel APIC based MSI messages.
- */
-
-/*
- * Shifts for MSI data
- */
-
-#define MSI_DATA_VECTOR_SHIFT 0
-#define MSI_DATA_VECTOR_MASK 0x000000ff
-#define MSI_DATA_VECTOR(v) (((v) << MSI_DATA_VECTOR_SHIFT) & \
- MSI_DATA_VECTOR_MASK)
-
-#define MSI_DATA_DELIVERY_MODE_SHIFT 8
-#define MSI_DATA_DELIVERY_FIXED (0 << MSI_DATA_DELIVERY_MODE_SHIFT)
-#define MSI_DATA_DELIVERY_LOWPRI (1 << MSI_DATA_DELIVERY_MODE_SHIFT)
-
-#define MSI_DATA_LEVEL_SHIFT 14
-#define MSI_DATA_LEVEL_DEASSERT (0 << MSI_DATA_LEVEL_SHIFT)
-#define MSI_DATA_LEVEL_ASSERT (1 << MSI_DATA_LEVEL_SHIFT)
-
-#define MSI_DATA_TRIGGER_SHIFT 15
-#define MSI_DATA_TRIGGER_EDGE (0 << MSI_DATA_TRIGGER_SHIFT)
-#define MSI_DATA_TRIGGER_LEVEL (1 << MSI_DATA_TRIGGER_SHIFT)
-
-/*
- * Shift/mask fields for msi address
- */
-
-#define MSI_ADDR_BASE_HI 0
-#define MSI_ADDR_BASE_LO 0xfee00000
-
-#define MSI_ADDR_DEST_MODE_SHIFT 2
-#define MSI_ADDR_DEST_MODE_PHYSICAL (0 << MSI_ADDR_DEST_MODE_SHIFT)
-#define MSI_ADDR_DEST_MODE_LOGICAL (1 << MSI_ADDR_DEST_MODE_SHIFT)
-
-#define MSI_ADDR_REDIRECTION_SHIFT 3
-#define MSI_ADDR_REDIRECTION_CPU (0 << MSI_ADDR_REDIRECTION_SHIFT)
- /* dedicated cpu */
-#define MSI_ADDR_REDIRECTION_LOWPRI (1 << MSI_ADDR_REDIRECTION_SHIFT)
- /* lowest priority */
-
-#define MSI_ADDR_DEST_ID_SHIFT 12
-#define MSI_ADDR_DEST_ID_MASK 0x00ffff0
-#define MSI_ADDR_DEST_ID(dest) (((dest) << MSI_ADDR_DEST_ID_SHIFT) & \
- MSI_ADDR_DEST_ID_MASK)
-#define MSI_ADDR_EXT_DEST_ID(dest) ((dest) & 0xffffff00)
-
-#define MSI_ADDR_IR_EXT_INT (1 << 4)
-#define MSI_ADDR_IR_SHV (1 << 3)
-#define MSI_ADDR_IR_INDEX1(index) ((index & 0x8000) >> 13)
-#define MSI_ADDR_IR_INDEX2(index) ((index & 0x7fff) << 5)
-#endif /* _ASM_X86_MSIDEF_H */
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 3cce71413d0b..3aedae61af4f 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -1,7 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MSR_INDEX_H
#define _ASM_X86_MSR_INDEX_H
-/* CPU model specific register (MSR) numbers */
+#include <linux/bits.h>
+
+/* CPU model specific register (MSR) numbers. */
/* x86-64 specific MSRs */
#define MSR_EFER 0xc0000080 /* extended feature register */
@@ -22,6 +25,7 @@
#define _EFER_SVME 12 /* Enable virtualization */
#define _EFER_LMSLE 13 /* Long Mode Segment Limit Enable */
#define _EFER_FFXSR 14 /* Enable Fast FXSAVE/FXRSTOR */
+#define _EFER_AUTOIBRS 21 /* Enable Automatic IBRS */
#define EFER_SCE (1<<_EFER_SCE)
#define EFER_LME (1<<_EFER_LME)
@@ -30,21 +34,151 @@
#define EFER_SVME (1<<_EFER_SVME)
#define EFER_LMSLE (1<<_EFER_LMSLE)
#define EFER_FFXSR (1<<_EFER_FFXSR)
+#define EFER_AUTOIBRS (1<<_EFER_AUTOIBRS)
/* Intel MSRs. Some also available on other CPUs */
+
+#define MSR_TEST_CTRL 0x00000033
+#define MSR_TEST_CTRL_SPLIT_LOCK_DETECT_BIT 29
+#define MSR_TEST_CTRL_SPLIT_LOCK_DETECT BIT(MSR_TEST_CTRL_SPLIT_LOCK_DETECT_BIT)
+
+#define MSR_IA32_SPEC_CTRL 0x00000048 /* Speculation Control */
+#define SPEC_CTRL_IBRS BIT(0) /* Indirect Branch Restricted Speculation */
+#define SPEC_CTRL_STIBP_SHIFT 1 /* Single Thread Indirect Branch Predictor (STIBP) bit */
+#define SPEC_CTRL_STIBP BIT(SPEC_CTRL_STIBP_SHIFT) /* STIBP mask */
+#define SPEC_CTRL_SSBD_SHIFT 2 /* Speculative Store Bypass Disable bit */
+#define SPEC_CTRL_SSBD BIT(SPEC_CTRL_SSBD_SHIFT) /* Speculative Store Bypass Disable */
+#define SPEC_CTRL_RRSBA_DIS_S_SHIFT 6 /* Disable RRSBA behavior */
+#define SPEC_CTRL_RRSBA_DIS_S BIT(SPEC_CTRL_RRSBA_DIS_S_SHIFT)
+
+/* A mask for bits which the kernel toggles when controlling mitigations */
+#define SPEC_CTRL_MITIGATIONS_MASK (SPEC_CTRL_IBRS | SPEC_CTRL_STIBP | SPEC_CTRL_SSBD \
+ | SPEC_CTRL_RRSBA_DIS_S)
+
+#define MSR_IA32_PRED_CMD 0x00000049 /* Prediction Command */
+#define PRED_CMD_IBPB BIT(0) /* Indirect Branch Prediction Barrier */
+
+#define MSR_PPIN_CTL 0x0000004e
+#define MSR_PPIN 0x0000004f
+
#define MSR_IA32_PERFCTR0 0x000000c1
#define MSR_IA32_PERFCTR1 0x000000c2
#define MSR_FSB_FREQ 0x000000cd
-
-#define MSR_NHM_SNB_PKG_CST_CFG_CTL 0x000000e2
+#define MSR_PLATFORM_INFO 0x000000ce
+#define MSR_PLATFORM_INFO_CPUID_FAULT_BIT 31
+#define MSR_PLATFORM_INFO_CPUID_FAULT BIT_ULL(MSR_PLATFORM_INFO_CPUID_FAULT_BIT)
+
+#define MSR_IA32_UMWAIT_CONTROL 0xe1
+#define MSR_IA32_UMWAIT_CONTROL_C02_DISABLE BIT(0)
+#define MSR_IA32_UMWAIT_CONTROL_RESERVED BIT(1)
+/*
+ * The time field is bit[31:2], but representing a 32bit value with
+ * bit[1:0] zero.
+ */
+#define MSR_IA32_UMWAIT_CONTROL_TIME_MASK (~0x03U)
+
+/* Abbreviated from Intel SDM name IA32_CORE_CAPABILITIES */
+#define MSR_IA32_CORE_CAPS 0x000000cf
+#define MSR_IA32_CORE_CAPS_INTEGRITY_CAPS_BIT 2
+#define MSR_IA32_CORE_CAPS_INTEGRITY_CAPS BIT(MSR_IA32_CORE_CAPS_INTEGRITY_CAPS_BIT)
+#define MSR_IA32_CORE_CAPS_SPLIT_LOCK_DETECT_BIT 5
+#define MSR_IA32_CORE_CAPS_SPLIT_LOCK_DETECT BIT(MSR_IA32_CORE_CAPS_SPLIT_LOCK_DETECT_BIT)
+
+#define MSR_PKG_CST_CONFIG_CONTROL 0x000000e2
#define NHM_C3_AUTO_DEMOTE (1UL << 25)
#define NHM_C1_AUTO_DEMOTE (1UL << 26)
#define ATM_LNC_C6_AUTO_DEMOTE (1UL << 25)
+#define SNB_C3_AUTO_UNDEMOTE (1UL << 27)
+#define SNB_C1_AUTO_UNDEMOTE (1UL << 28)
#define MSR_MTRRcap 0x000000fe
+
+#define MSR_IA32_ARCH_CAPABILITIES 0x0000010a
+#define ARCH_CAP_RDCL_NO BIT(0) /* Not susceptible to Meltdown */
+#define ARCH_CAP_IBRS_ALL BIT(1) /* Enhanced IBRS support */
+#define ARCH_CAP_RSBA BIT(2) /* RET may use alternative branch predictors */
+#define ARCH_CAP_SKIP_VMENTRY_L1DFLUSH BIT(3) /* Skip L1D flush on vmentry */
+#define ARCH_CAP_SSB_NO BIT(4) /*
+ * Not susceptible to Speculative Store Bypass
+ * attack, so no Speculative Store Bypass
+ * control required.
+ */
+#define ARCH_CAP_MDS_NO BIT(5) /*
+ * Not susceptible to
+ * Microarchitectural Data
+ * Sampling (MDS) vulnerabilities.
+ */
+#define ARCH_CAP_PSCHANGE_MC_NO BIT(6) /*
+ * The processor is not susceptible to a
+ * machine check error due to modifying the
+ * code page size along with either the
+ * physical address or cache type
+ * without TLB invalidation.
+ */
+#define ARCH_CAP_TSX_CTRL_MSR BIT(7) /* MSR for TSX control is available. */
+#define ARCH_CAP_TAA_NO BIT(8) /*
+ * Not susceptible to
+ * TSX Async Abort (TAA) vulnerabilities.
+ */
+#define ARCH_CAP_SBDR_SSDP_NO BIT(13) /*
+ * Not susceptible to SBDR and SSDP
+ * variants of Processor MMIO stale data
+ * vulnerabilities.
+ */
+#define ARCH_CAP_FBSDP_NO BIT(14) /*
+ * Not susceptible to FBSDP variant of
+ * Processor MMIO stale data
+ * vulnerabilities.
+ */
+#define ARCH_CAP_PSDP_NO BIT(15) /*
+ * Not susceptible to PSDP variant of
+ * Processor MMIO stale data
+ * vulnerabilities.
+ */
+#define ARCH_CAP_FB_CLEAR BIT(17) /*
+ * VERW clears CPU fill buffer
+ * even on MDS_NO CPUs.
+ */
+#define ARCH_CAP_FB_CLEAR_CTRL BIT(18) /*
+ * MSR_IA32_MCU_OPT_CTRL[FB_CLEAR_DIS]
+ * bit available to control VERW
+ * behavior.
+ */
+#define ARCH_CAP_RRSBA BIT(19) /*
+ * Indicates RET may use predictors
+ * other than the RSB. With eIBRS
+ * enabled predictions in kernel mode
+ * are restricted to targets in
+ * kernel.
+ */
+#define ARCH_CAP_PBRSB_NO BIT(24) /*
+ * Not susceptible to Post-Barrier
+ * Return Stack Buffer Predictions.
+ */
+
+#define ARCH_CAP_XAPIC_DISABLE BIT(21) /*
+ * IA32_XAPIC_DISABLE_STATUS MSR
+ * supported
+ */
+
+#define MSR_IA32_FLUSH_CMD 0x0000010b
+#define L1D_FLUSH BIT(0) /*
+ * Writeback and invalidate the
+ * L1 data cache.
+ */
+
#define MSR_IA32_BBL_CR_CTL 0x00000119
#define MSR_IA32_BBL_CR_CTL3 0x0000011e
+#define MSR_IA32_TSX_CTRL 0x00000122
+#define TSX_CTRL_RTM_DISABLE BIT(0) /* Disable RTM feature */
+#define TSX_CTRL_CPUID_CLEAR BIT(1) /* Disable TSX enumeration */
+
+#define MSR_IA32_MCU_OPT_CTRL 0x00000123
+#define RNGDS_MITG_DIS BIT(0) /* SRBDS support */
+#define RTM_ALLOW BIT(1) /* TSX development mode */
+#define FB_CLEAR_DIS BIT(3) /* CPU Fill buffer clear disable */
+
#define MSR_IA32_SYSENTER_CS 0x00000174
#define MSR_IA32_SYSENTER_ESP 0x00000175
#define MSR_IA32_SYSENTER_EIP 0x00000176
@@ -52,13 +186,124 @@
#define MSR_IA32_MCG_CAP 0x00000179
#define MSR_IA32_MCG_STATUS 0x0000017a
#define MSR_IA32_MCG_CTL 0x0000017b
+#define MSR_ERROR_CONTROL 0x0000017f
+#define MSR_IA32_MCG_EXT_CTL 0x000004d0
#define MSR_OFFCORE_RSP_0 0x000001a6
#define MSR_OFFCORE_RSP_1 0x000001a7
+#define MSR_TURBO_RATIO_LIMIT 0x000001ad
+#define MSR_TURBO_RATIO_LIMIT1 0x000001ae
+#define MSR_TURBO_RATIO_LIMIT2 0x000001af
+
+#define MSR_SNOOP_RSP_0 0x00001328
+#define MSR_SNOOP_RSP_1 0x00001329
+
+#define MSR_LBR_SELECT 0x000001c8
+#define MSR_LBR_TOS 0x000001c9
+
+#define MSR_IA32_POWER_CTL 0x000001fc
+#define MSR_IA32_POWER_CTL_BIT_EE 19
+
+/* Abbreviated from Intel SDM name IA32_INTEGRITY_CAPABILITIES */
+#define MSR_INTEGRITY_CAPS 0x000002d9
+#define MSR_INTEGRITY_CAPS_ARRAY_BIST_BIT 2
+#define MSR_INTEGRITY_CAPS_ARRAY_BIST BIT(MSR_INTEGRITY_CAPS_ARRAY_BIST_BIT)
+#define MSR_INTEGRITY_CAPS_PERIODIC_BIST_BIT 4
+#define MSR_INTEGRITY_CAPS_PERIODIC_BIST BIT(MSR_INTEGRITY_CAPS_PERIODIC_BIST_BIT)
+
+#define MSR_LBR_NHM_FROM 0x00000680
+#define MSR_LBR_NHM_TO 0x000006c0
+#define MSR_LBR_CORE_FROM 0x00000040
+#define MSR_LBR_CORE_TO 0x00000060
+
+#define MSR_LBR_INFO_0 0x00000dc0 /* ... 0xddf for _31 */
+#define LBR_INFO_MISPRED BIT_ULL(63)
+#define LBR_INFO_IN_TX BIT_ULL(62)
+#define LBR_INFO_ABORT BIT_ULL(61)
+#define LBR_INFO_CYC_CNT_VALID BIT_ULL(60)
+#define LBR_INFO_CYCLES 0xffff
+#define LBR_INFO_BR_TYPE_OFFSET 56
+#define LBR_INFO_BR_TYPE (0xfull << LBR_INFO_BR_TYPE_OFFSET)
+
+#define MSR_ARCH_LBR_CTL 0x000014ce
+#define ARCH_LBR_CTL_LBREN BIT(0)
+#define ARCH_LBR_CTL_CPL_OFFSET 1
+#define ARCH_LBR_CTL_CPL (0x3ull << ARCH_LBR_CTL_CPL_OFFSET)
+#define ARCH_LBR_CTL_STACK_OFFSET 3
+#define ARCH_LBR_CTL_STACK (0x1ull << ARCH_LBR_CTL_STACK_OFFSET)
+#define ARCH_LBR_CTL_FILTER_OFFSET 16
+#define ARCH_LBR_CTL_FILTER (0x7full << ARCH_LBR_CTL_FILTER_OFFSET)
+#define MSR_ARCH_LBR_DEPTH 0x000014cf
+#define MSR_ARCH_LBR_FROM_0 0x00001500
+#define MSR_ARCH_LBR_TO_0 0x00001600
+#define MSR_ARCH_LBR_INFO_0 0x00001200
#define MSR_IA32_PEBS_ENABLE 0x000003f1
+#define MSR_PEBS_DATA_CFG 0x000003f2
#define MSR_IA32_DS_AREA 0x00000600
#define MSR_IA32_PERF_CAPABILITIES 0x00000345
+#define PERF_CAP_METRICS_IDX 15
+#define PERF_CAP_PT_IDX 16
+
+#define MSR_PEBS_LD_LAT_THRESHOLD 0x000003f6
+#define PERF_CAP_PEBS_TRAP BIT_ULL(6)
+#define PERF_CAP_ARCH_REG BIT_ULL(7)
+#define PERF_CAP_PEBS_FORMAT 0xf00
+#define PERF_CAP_PEBS_BASELINE BIT_ULL(14)
+#define PERF_CAP_PEBS_MASK (PERF_CAP_PEBS_TRAP | PERF_CAP_ARCH_REG | \
+ PERF_CAP_PEBS_FORMAT | PERF_CAP_PEBS_BASELINE)
+
+#define MSR_IA32_RTIT_CTL 0x00000570
+#define RTIT_CTL_TRACEEN BIT(0)
+#define RTIT_CTL_CYCLEACC BIT(1)
+#define RTIT_CTL_OS BIT(2)
+#define RTIT_CTL_USR BIT(3)
+#define RTIT_CTL_PWR_EVT_EN BIT(4)
+#define RTIT_CTL_FUP_ON_PTW BIT(5)
+#define RTIT_CTL_FABRIC_EN BIT(6)
+#define RTIT_CTL_CR3EN BIT(7)
+#define RTIT_CTL_TOPA BIT(8)
+#define RTIT_CTL_MTC_EN BIT(9)
+#define RTIT_CTL_TSC_EN BIT(10)
+#define RTIT_CTL_DISRETC BIT(11)
+#define RTIT_CTL_PTW_EN BIT(12)
+#define RTIT_CTL_BRANCH_EN BIT(13)
+#define RTIT_CTL_EVENT_EN BIT(31)
+#define RTIT_CTL_NOTNT BIT_ULL(55)
+#define RTIT_CTL_MTC_RANGE_OFFSET 14
+#define RTIT_CTL_MTC_RANGE (0x0full << RTIT_CTL_MTC_RANGE_OFFSET)
+#define RTIT_CTL_CYC_THRESH_OFFSET 19
+#define RTIT_CTL_CYC_THRESH (0x0full << RTIT_CTL_CYC_THRESH_OFFSET)
+#define RTIT_CTL_PSB_FREQ_OFFSET 24
+#define RTIT_CTL_PSB_FREQ (0x0full << RTIT_CTL_PSB_FREQ_OFFSET)
+#define RTIT_CTL_ADDR0_OFFSET 32
+#define RTIT_CTL_ADDR0 (0x0full << RTIT_CTL_ADDR0_OFFSET)
+#define RTIT_CTL_ADDR1_OFFSET 36
+#define RTIT_CTL_ADDR1 (0x0full << RTIT_CTL_ADDR1_OFFSET)
+#define RTIT_CTL_ADDR2_OFFSET 40
+#define RTIT_CTL_ADDR2 (0x0full << RTIT_CTL_ADDR2_OFFSET)
+#define RTIT_CTL_ADDR3_OFFSET 44
+#define RTIT_CTL_ADDR3 (0x0full << RTIT_CTL_ADDR3_OFFSET)
+#define MSR_IA32_RTIT_STATUS 0x00000571
+#define RTIT_STATUS_FILTEREN BIT(0)
+#define RTIT_STATUS_CONTEXTEN BIT(1)
+#define RTIT_STATUS_TRIGGEREN BIT(2)
+#define RTIT_STATUS_BUFFOVF BIT(3)
+#define RTIT_STATUS_ERROR BIT(4)
+#define RTIT_STATUS_STOPPED BIT(5)
+#define RTIT_STATUS_BYTECNT_OFFSET 32
+#define RTIT_STATUS_BYTECNT (0x1ffffull << RTIT_STATUS_BYTECNT_OFFSET)
+#define MSR_IA32_RTIT_ADDR0_A 0x00000580
+#define MSR_IA32_RTIT_ADDR0_B 0x00000581
+#define MSR_IA32_RTIT_ADDR1_A 0x00000582
+#define MSR_IA32_RTIT_ADDR1_B 0x00000583
+#define MSR_IA32_RTIT_ADDR2_A 0x00000584
+#define MSR_IA32_RTIT_ADDR2_B 0x00000585
+#define MSR_IA32_RTIT_ADDR3_A 0x00000586
+#define MSR_IA32_RTIT_ADDR3_B 0x00000587
+#define MSR_IA32_RTIT_CR3_MATCH 0x00000572
+#define MSR_IA32_RTIT_OUTPUT_BASE 0x00000560
+#define MSR_IA32_RTIT_OUTPUT_MASK 0x00000561
#define MSR_MTRRfix64K_00000 0x00000250
#define MSR_MTRRfix16K_80000 0x00000258
@@ -81,21 +326,173 @@
#define MSR_IA32_LASTINTFROMIP 0x000001dd
#define MSR_IA32_LASTINTTOIP 0x000001de
+#define MSR_IA32_PASID 0x00000d93
+#define MSR_IA32_PASID_VALID BIT_ULL(31)
+
/* DEBUGCTLMSR bits (others vary by model): */
#define DEBUGCTLMSR_LBR (1UL << 0) /* last branch recording */
+#define DEBUGCTLMSR_BTF_SHIFT 1
#define DEBUGCTLMSR_BTF (1UL << 1) /* single-step on branches */
+#define DEBUGCTLMSR_BUS_LOCK_DETECT (1UL << 2)
#define DEBUGCTLMSR_TR (1UL << 6)
#define DEBUGCTLMSR_BTS (1UL << 7)
#define DEBUGCTLMSR_BTINT (1UL << 8)
#define DEBUGCTLMSR_BTS_OFF_OS (1UL << 9)
#define DEBUGCTLMSR_BTS_OFF_USR (1UL << 10)
#define DEBUGCTLMSR_FREEZE_LBRS_ON_PMI (1UL << 11)
+#define DEBUGCTLMSR_FREEZE_PERFMON_ON_PMI (1UL << 12)
+#define DEBUGCTLMSR_FREEZE_IN_SMM_BIT 14
+#define DEBUGCTLMSR_FREEZE_IN_SMM (1UL << DEBUGCTLMSR_FREEZE_IN_SMM_BIT)
+
+#define MSR_PEBS_FRONTEND 0x000003f7
#define MSR_IA32_MC0_CTL 0x00000400
#define MSR_IA32_MC0_STATUS 0x00000401
#define MSR_IA32_MC0_ADDR 0x00000402
#define MSR_IA32_MC0_MISC 0x00000403
+/* C-state Residency Counters */
+#define MSR_PKG_C3_RESIDENCY 0x000003f8
+#define MSR_PKG_C6_RESIDENCY 0x000003f9
+#define MSR_ATOM_PKG_C6_RESIDENCY 0x000003fa
+#define MSR_PKG_C7_RESIDENCY 0x000003fa
+#define MSR_CORE_C3_RESIDENCY 0x000003fc
+#define MSR_CORE_C6_RESIDENCY 0x000003fd
+#define MSR_CORE_C7_RESIDENCY 0x000003fe
+#define MSR_KNL_CORE_C6_RESIDENCY 0x000003ff
+#define MSR_PKG_C2_RESIDENCY 0x0000060d
+#define MSR_PKG_C8_RESIDENCY 0x00000630
+#define MSR_PKG_C9_RESIDENCY 0x00000631
+#define MSR_PKG_C10_RESIDENCY 0x00000632
+
+/* Interrupt Response Limit */
+#define MSR_PKGC3_IRTL 0x0000060a
+#define MSR_PKGC6_IRTL 0x0000060b
+#define MSR_PKGC7_IRTL 0x0000060c
+#define MSR_PKGC8_IRTL 0x00000633
+#define MSR_PKGC9_IRTL 0x00000634
+#define MSR_PKGC10_IRTL 0x00000635
+
+/* Run Time Average Power Limiting (RAPL) Interface */
+
+#define MSR_VR_CURRENT_CONFIG 0x00000601
+#define MSR_RAPL_POWER_UNIT 0x00000606
+
+#define MSR_PKG_POWER_LIMIT 0x00000610
+#define MSR_PKG_ENERGY_STATUS 0x00000611
+#define MSR_PKG_PERF_STATUS 0x00000613
+#define MSR_PKG_POWER_INFO 0x00000614
+
+#define MSR_DRAM_POWER_LIMIT 0x00000618
+#define MSR_DRAM_ENERGY_STATUS 0x00000619
+#define MSR_DRAM_PERF_STATUS 0x0000061b
+#define MSR_DRAM_POWER_INFO 0x0000061c
+
+#define MSR_PP0_POWER_LIMIT 0x00000638
+#define MSR_PP0_ENERGY_STATUS 0x00000639
+#define MSR_PP0_POLICY 0x0000063a
+#define MSR_PP0_PERF_STATUS 0x0000063b
+
+#define MSR_PP1_POWER_LIMIT 0x00000640
+#define MSR_PP1_ENERGY_STATUS 0x00000641
+#define MSR_PP1_POLICY 0x00000642
+
+#define MSR_AMD_RAPL_POWER_UNIT 0xc0010299
+#define MSR_AMD_CORE_ENERGY_STATUS 0xc001029a
+#define MSR_AMD_PKG_ENERGY_STATUS 0xc001029b
+
+/* Config TDP MSRs */
+#define MSR_CONFIG_TDP_NOMINAL 0x00000648
+#define MSR_CONFIG_TDP_LEVEL_1 0x00000649
+#define MSR_CONFIG_TDP_LEVEL_2 0x0000064A
+#define MSR_CONFIG_TDP_CONTROL 0x0000064B
+#define MSR_TURBO_ACTIVATION_RATIO 0x0000064C
+
+#define MSR_PLATFORM_ENERGY_STATUS 0x0000064D
+#define MSR_SECONDARY_TURBO_RATIO_LIMIT 0x00000650
+
+#define MSR_PKG_WEIGHTED_CORE_C0_RES 0x00000658
+#define MSR_PKG_ANY_CORE_C0_RES 0x00000659
+#define MSR_PKG_ANY_GFXE_C0_RES 0x0000065A
+#define MSR_PKG_BOTH_CORE_GFXE_C0_RES 0x0000065B
+
+#define MSR_CORE_C1_RES 0x00000660
+#define MSR_MODULE_C6_RES_MS 0x00000664
+
+#define MSR_CC6_DEMOTION_POLICY_CONFIG 0x00000668
+#define MSR_MC6_DEMOTION_POLICY_CONFIG 0x00000669
+
+#define MSR_ATOM_CORE_RATIOS 0x0000066a
+#define MSR_ATOM_CORE_VIDS 0x0000066b
+#define MSR_ATOM_CORE_TURBO_RATIOS 0x0000066c
+#define MSR_ATOM_CORE_TURBO_VIDS 0x0000066d
+
+#define MSR_CORE_PERF_LIMIT_REASONS 0x00000690
+#define MSR_GFX_PERF_LIMIT_REASONS 0x000006B0
+#define MSR_RING_PERF_LIMIT_REASONS 0x000006B1
+
+/* Control-flow Enforcement Technology MSRs */
+#define MSR_IA32_U_CET 0x000006a0 /* user mode cet */
+#define MSR_IA32_S_CET 0x000006a2 /* kernel mode cet */
+#define CET_SHSTK_EN BIT_ULL(0)
+#define CET_WRSS_EN BIT_ULL(1)
+#define CET_ENDBR_EN BIT_ULL(2)
+#define CET_LEG_IW_EN BIT_ULL(3)
+#define CET_NO_TRACK_EN BIT_ULL(4)
+#define CET_SUPPRESS_DISABLE BIT_ULL(5)
+#define CET_RESERVED (BIT_ULL(6) | BIT_ULL(7) | BIT_ULL(8) | BIT_ULL(9))
+#define CET_SUPPRESS BIT_ULL(10)
+#define CET_WAIT_ENDBR BIT_ULL(11)
+
+#define MSR_IA32_PL0_SSP 0x000006a4 /* ring-0 shadow stack pointer */
+#define MSR_IA32_PL1_SSP 0x000006a5 /* ring-1 shadow stack pointer */
+#define MSR_IA32_PL2_SSP 0x000006a6 /* ring-2 shadow stack pointer */
+#define MSR_IA32_PL3_SSP 0x000006a7 /* ring-3 shadow stack pointer */
+#define MSR_IA32_INT_SSP_TAB 0x000006a8 /* exception shadow stack table */
+
+/* Hardware P state interface */
+#define MSR_PPERF 0x0000064e
+#define MSR_PERF_LIMIT_REASONS 0x0000064f
+#define MSR_PM_ENABLE 0x00000770
+#define MSR_HWP_CAPABILITIES 0x00000771
+#define MSR_HWP_REQUEST_PKG 0x00000772
+#define MSR_HWP_INTERRUPT 0x00000773
+#define MSR_HWP_REQUEST 0x00000774
+#define MSR_HWP_STATUS 0x00000777
+
+/* CPUID.6.EAX */
+#define HWP_BASE_BIT (1<<7)
+#define HWP_NOTIFICATIONS_BIT (1<<8)
+#define HWP_ACTIVITY_WINDOW_BIT (1<<9)
+#define HWP_ENERGY_PERF_PREFERENCE_BIT (1<<10)
+#define HWP_PACKAGE_LEVEL_REQUEST_BIT (1<<11)
+
+/* IA32_HWP_CAPABILITIES */
+#define HWP_HIGHEST_PERF(x) (((x) >> 0) & 0xff)
+#define HWP_GUARANTEED_PERF(x) (((x) >> 8) & 0xff)
+#define HWP_MOSTEFFICIENT_PERF(x) (((x) >> 16) & 0xff)
+#define HWP_LOWEST_PERF(x) (((x) >> 24) & 0xff)
+
+/* IA32_HWP_REQUEST */
+#define HWP_MIN_PERF(x) (x & 0xff)
+#define HWP_MAX_PERF(x) ((x & 0xff) << 8)
+#define HWP_DESIRED_PERF(x) ((x & 0xff) << 16)
+#define HWP_ENERGY_PERF_PREFERENCE(x) (((unsigned long long) x & 0xff) << 24)
+#define HWP_EPP_PERFORMANCE 0x00
+#define HWP_EPP_BALANCE_PERFORMANCE 0x80
+#define HWP_EPP_BALANCE_POWERSAVE 0xC0
+#define HWP_EPP_POWERSAVE 0xFF
+#define HWP_ACTIVITY_WINDOW(x) ((unsigned long long)(x & 0xff3) << 32)
+#define HWP_PACKAGE_CONTROL(x) ((unsigned long long)(x & 0x1) << 42)
+
+/* IA32_HWP_STATUS */
+#define HWP_GUARANTEED_CHANGE(x) (x & 0x1)
+#define HWP_EXCURSION_TO_MINIMUM(x) (x & 0x4)
+
+/* IA32_HWP_INTERRUPT */
+#define HWP_CHANGE_TO_GUARANTEED_INT(x) (x & 0x1)
+#define HWP_EXCURSION_TO_MINIMUM_INT(x) (x & 0x2)
+
#define MSR_AMD64_MC0_MASK 0xc0010044
#define MSR_IA32_MCx_CTL(x) (MSR_IA32_MC0_CTL + 4*(x))
@@ -114,18 +511,47 @@
#define MSR_P6_EVNTSEL0 0x00000186
#define MSR_P6_EVNTSEL1 0x00000187
-/* AMD64 MSRs. Not complete. See the architecture manual for a more
- complete list. */
+#define MSR_KNC_PERFCTR0 0x00000020
+#define MSR_KNC_PERFCTR1 0x00000021
+#define MSR_KNC_EVNTSEL0 0x00000028
+#define MSR_KNC_EVNTSEL1 0x00000029
+
+/* Alternative perfctr range with full access. */
+#define MSR_IA32_PMC0 0x000004c1
+/* Auto-reload via MSR instead of DS area */
+#define MSR_RELOAD_PMC0 0x000014c1
+#define MSR_RELOAD_FIXED_CTR0 0x00001309
+
+/*
+ * AMD64 MSRs. Not complete. See the architecture manual for a more
+ * complete list.
+ */
#define MSR_AMD64_PATCH_LEVEL 0x0000008b
+#define MSR_AMD64_TSC_RATIO 0xc0000104
#define MSR_AMD64_NB_CFG 0xc001001f
#define MSR_AMD64_PATCH_LOADER 0xc0010020
+#define MSR_AMD_PERF_CTL 0xc0010062
+#define MSR_AMD_PERF_STATUS 0xc0010063
+#define MSR_AMD_PSTATE_DEF_BASE 0xc0010064
#define MSR_AMD64_OSVW_ID_LENGTH 0xc0010140
#define MSR_AMD64_OSVW_STATUS 0xc0010141
+#define MSR_AMD_PPIN_CTL 0xc00102f0
+#define MSR_AMD_PPIN 0xc00102f1
+#define MSR_AMD64_CPUID_FN_1 0xc0011004
+#define MSR_AMD64_LS_CFG 0xc0011020
#define MSR_AMD64_DC_CFG 0xc0011022
+
+#define MSR_AMD64_DE_CFG 0xc0011029
+#define MSR_AMD64_DE_CFG_LFENCE_SERIALIZE_BIT 1
+#define MSR_AMD64_DE_CFG_LFENCE_SERIALIZE BIT_ULL(MSR_AMD64_DE_CFG_LFENCE_SERIALIZE_BIT)
+
+#define MSR_AMD64_BU_CFG2 0xc001102a
#define MSR_AMD64_IBSFETCHCTL 0xc0011030
#define MSR_AMD64_IBSFETCHLINAD 0xc0011031
#define MSR_AMD64_IBSFETCHPHYSAD 0xc0011032
+#define MSR_AMD64_IBSFETCH_REG_COUNT 3
+#define MSR_AMD64_IBSFETCH_REG_MASK ((1UL<<MSR_AMD64_IBSFETCH_REG_COUNT)-1)
#define MSR_AMD64_IBSOPCTL 0xc0011033
#define MSR_AMD64_IBSOPRIP 0xc0011034
#define MSR_AMD64_IBSOPDATA 0xc0011035
@@ -133,12 +559,109 @@
#define MSR_AMD64_IBSOPDATA3 0xc0011037
#define MSR_AMD64_IBSDCLINAD 0xc0011038
#define MSR_AMD64_IBSDCPHYSAD 0xc0011039
+#define MSR_AMD64_IBSOP_REG_COUNT 7
+#define MSR_AMD64_IBSOP_REG_MASK ((1UL<<MSR_AMD64_IBSOP_REG_COUNT)-1)
#define MSR_AMD64_IBSCTL 0xc001103a
#define MSR_AMD64_IBSBRTARGET 0xc001103b
+#define MSR_AMD64_ICIBSEXTDCTL 0xc001103c
+#define MSR_AMD64_IBSOPDATA4 0xc001103d
+#define MSR_AMD64_IBS_REG_COUNT_MAX 8 /* includes MSR_AMD64_IBSBRTARGET */
+#define MSR_AMD64_SVM_AVIC_DOORBELL 0xc001011b
+#define MSR_AMD64_VM_PAGE_FLUSH 0xc001011e
+#define MSR_AMD64_SEV_ES_GHCB 0xc0010130
+#define MSR_AMD64_SEV 0xc0010131
+#define MSR_AMD64_SEV_ENABLED_BIT 0
+#define MSR_AMD64_SEV_ES_ENABLED_BIT 1
+#define MSR_AMD64_SEV_SNP_ENABLED_BIT 2
+#define MSR_AMD64_SEV_ENABLED BIT_ULL(MSR_AMD64_SEV_ENABLED_BIT)
+#define MSR_AMD64_SEV_ES_ENABLED BIT_ULL(MSR_AMD64_SEV_ES_ENABLED_BIT)
+#define MSR_AMD64_SEV_SNP_ENABLED BIT_ULL(MSR_AMD64_SEV_SNP_ENABLED_BIT)
+
+/* SNP feature bits enabled by the hypervisor */
+#define MSR_AMD64_SNP_VTOM BIT_ULL(3)
+#define MSR_AMD64_SNP_REFLECT_VC BIT_ULL(4)
+#define MSR_AMD64_SNP_RESTRICTED_INJ BIT_ULL(5)
+#define MSR_AMD64_SNP_ALT_INJ BIT_ULL(6)
+#define MSR_AMD64_SNP_DEBUG_SWAP BIT_ULL(7)
+#define MSR_AMD64_SNP_PREVENT_HOST_IBS BIT_ULL(8)
+#define MSR_AMD64_SNP_BTB_ISOLATION BIT_ULL(9)
+#define MSR_AMD64_SNP_VMPL_SSS BIT_ULL(10)
+#define MSR_AMD64_SNP_SECURE_TSC BIT_ULL(11)
+#define MSR_AMD64_SNP_VMGEXIT_PARAM BIT_ULL(12)
+#define MSR_AMD64_SNP_IBS_VIRT BIT_ULL(14)
+#define MSR_AMD64_SNP_VMSA_REG_PROTECTION BIT_ULL(16)
+#define MSR_AMD64_SNP_SMT_PROTECTION BIT_ULL(17)
+
+/* SNP feature bits reserved for future use. */
+#define MSR_AMD64_SNP_RESERVED_BIT13 BIT_ULL(13)
+#define MSR_AMD64_SNP_RESERVED_BIT15 BIT_ULL(15)
+#define MSR_AMD64_SNP_RESERVED_MASK GENMASK_ULL(63, 18)
+
+#define MSR_AMD64_VIRT_SPEC_CTRL 0xc001011f
+
+/* AMD Collaborative Processor Performance Control MSRs */
+#define MSR_AMD_CPPC_CAP1 0xc00102b0
+#define MSR_AMD_CPPC_ENABLE 0xc00102b1
+#define MSR_AMD_CPPC_CAP2 0xc00102b2
+#define MSR_AMD_CPPC_REQ 0xc00102b3
+#define MSR_AMD_CPPC_STATUS 0xc00102b4
+
+#define AMD_CPPC_LOWEST_PERF(x) (((x) >> 0) & 0xff)
+#define AMD_CPPC_LOWNONLIN_PERF(x) (((x) >> 8) & 0xff)
+#define AMD_CPPC_NOMINAL_PERF(x) (((x) >> 16) & 0xff)
+#define AMD_CPPC_HIGHEST_PERF(x) (((x) >> 24) & 0xff)
+
+#define AMD_CPPC_MAX_PERF(x) (((x) & 0xff) << 0)
+#define AMD_CPPC_MIN_PERF(x) (((x) & 0xff) << 8)
+#define AMD_CPPC_DES_PERF(x) (((x) & 0xff) << 16)
+#define AMD_CPPC_ENERGY_PERF_PREF(x) (((x) & 0xff) << 24)
+
+/* AMD Performance Counter Global Status and Control MSRs */
+#define MSR_AMD64_PERF_CNTR_GLOBAL_STATUS 0xc0000300
+#define MSR_AMD64_PERF_CNTR_GLOBAL_CTL 0xc0000301
+#define MSR_AMD64_PERF_CNTR_GLOBAL_STATUS_CLR 0xc0000302
+
+/* AMD Last Branch Record MSRs */
+#define MSR_AMD64_LBR_SELECT 0xc000010e
+
+/* Fam 17h MSRs */
+#define MSR_F17H_IRPERF 0xc00000e9
+
+#define MSR_ZEN2_SPECTRAL_CHICKEN 0xc00110e3
+#define MSR_ZEN2_SPECTRAL_CHICKEN_BIT BIT_ULL(1)
+
+/* Fam 16h MSRs */
+#define MSR_F16H_L2I_PERF_CTL 0xc0010230
+#define MSR_F16H_L2I_PERF_CTR 0xc0010231
+#define MSR_F16H_DR1_ADDR_MASK 0xc0011019
+#define MSR_F16H_DR2_ADDR_MASK 0xc001101a
+#define MSR_F16H_DR3_ADDR_MASK 0xc001101b
+#define MSR_F16H_DR0_ADDR_MASK 0xc0011027
/* Fam 15h MSRs */
+#define MSR_F15H_CU_PWR_ACCUMULATOR 0xc001007a
+#define MSR_F15H_CU_MAX_PWR_ACCUMULATOR 0xc001007b
#define MSR_F15H_PERF_CTL 0xc0010200
+#define MSR_F15H_PERF_CTL0 MSR_F15H_PERF_CTL
+#define MSR_F15H_PERF_CTL1 (MSR_F15H_PERF_CTL + 2)
+#define MSR_F15H_PERF_CTL2 (MSR_F15H_PERF_CTL + 4)
+#define MSR_F15H_PERF_CTL3 (MSR_F15H_PERF_CTL + 6)
+#define MSR_F15H_PERF_CTL4 (MSR_F15H_PERF_CTL + 8)
+#define MSR_F15H_PERF_CTL5 (MSR_F15H_PERF_CTL + 10)
+
#define MSR_F15H_PERF_CTR 0xc0010201
+#define MSR_F15H_PERF_CTR0 MSR_F15H_PERF_CTR
+#define MSR_F15H_PERF_CTR1 (MSR_F15H_PERF_CTR + 2)
+#define MSR_F15H_PERF_CTR2 (MSR_F15H_PERF_CTR + 4)
+#define MSR_F15H_PERF_CTR3 (MSR_F15H_PERF_CTR + 6)
+#define MSR_F15H_PERF_CTR4 (MSR_F15H_PERF_CTR + 8)
+#define MSR_F15H_PERF_CTR5 (MSR_F15H_PERF_CTR + 10)
+
+#define MSR_F15H_NB_PERF_CTL 0xc0010240
+#define MSR_F15H_NB_PERF_CTR 0xc0010241
+#define MSR_F15H_PTSC 0xc0010280
+#define MSR_F15H_IC_CFG 0xc0011021
+#define MSR_F15H_EX_CFG 0xc001102c
/* Fam 10h MSRs */
#define MSR_FAM10H_MMIO_CONF_BASE 0xc0010058
@@ -152,11 +675,14 @@
/* K8 MSRs */
#define MSR_K8_TOP_MEM1 0xc001001a
#define MSR_K8_TOP_MEM2 0xc001001d
-#define MSR_K8_SYSCFG 0xc0010010
+#define MSR_AMD64_SYSCFG 0xc0010010
+#define MSR_AMD64_SYSCFG_MEM_ENCRYPT_BIT 23
+#define MSR_AMD64_SYSCFG_MEM_ENCRYPT BIT_ULL(MSR_AMD64_SYSCFG_MEM_ENCRYPT_BIT)
#define MSR_K8_INT_PENDING_MSG 0xc0010055
/* C1E active bits in int pending message */
#define K8_INTP_C1E_ACTIVE_MASK 0x18000000
#define MSR_K8_TSEG_ADDR 0xc0010112
+#define MSR_K8_TSEG_MASK 0xc0010113
#define K8_MTRRFIXRANGE_DRAM_ENABLE 0x00040000 /* MtrrFixDramEn bit */
#define K8_MTRRFIXRANGE_DRAM_MODIFY 0x00080000 /* MtrrFixDramModEn bit */
#define K8_MTRR_RDMEM_WRMEM_MASK 0x18181818 /* Mask: RdMem|WrMem */
@@ -172,6 +698,10 @@
#define MSR_K7_PERFCTR3 0xc0010007
#define MSR_K7_CLK_CTL 0xc001001b
#define MSR_K7_HWCR 0xc0010015
+#define MSR_K7_HWCR_SMMLOCK_BIT 0
+#define MSR_K7_HWCR_SMMLOCK BIT_ULL(MSR_K7_HWCR_SMMLOCK_BIT)
+#define MSR_K7_HWCR_IRPERF_EN_BIT 30
+#define MSR_K7_HWCR_IRPERF_EN BIT_ULL(MSR_K7_HWCR_IRPERF_EN_BIT)
#define MSR_K7_FID_VID_CTL 0xc0010041
#define MSR_K7_FID_VID_STATUS 0xc0010042
@@ -217,11 +747,25 @@
#define MSR_IA32_PLATFORM_ID 0x00000017
#define MSR_IA32_EBL_CR_POWERON 0x0000002a
#define MSR_EBC_FREQUENCY_ID 0x0000002c
-#define MSR_IA32_FEATURE_CONTROL 0x0000003a
+#define MSR_SMI_COUNT 0x00000034
-#define FEATURE_CONTROL_LOCKED (1<<0)
-#define FEATURE_CONTROL_VMXON_ENABLED_INSIDE_SMX (1<<1)
-#define FEATURE_CONTROL_VMXON_ENABLED_OUTSIDE_SMX (1<<2)
+/* Referred to as IA32_FEATURE_CONTROL in Intel's SDM. */
+#define MSR_IA32_FEAT_CTL 0x0000003a
+#define FEAT_CTL_LOCKED BIT(0)
+#define FEAT_CTL_VMX_ENABLED_INSIDE_SMX BIT(1)
+#define FEAT_CTL_VMX_ENABLED_OUTSIDE_SMX BIT(2)
+#define FEAT_CTL_SGX_LC_ENABLED BIT(17)
+#define FEAT_CTL_SGX_ENABLED BIT(18)
+#define FEAT_CTL_LMCE_ENABLED BIT(20)
+
+#define MSR_IA32_TSC_ADJUST 0x0000003b
+#define MSR_IA32_BNDCFGS 0x00000d90
+
+#define MSR_IA32_BNDCFGS_RSVD 0x00000ffc
+
+#define MSR_IA32_XFD 0x000001c4
+#define MSR_IA32_XFD_ERR 0x000001c5
+#define MSR_IA32_XSS 0x00000da0
#define MSR_IA32_APICBASE 0x0000001b
#define MSR_IA32_APICBASE_BSP (1<<8)
@@ -231,8 +775,24 @@
#define MSR_IA32_UCODE_WRITE 0x00000079
#define MSR_IA32_UCODE_REV 0x0000008b
+/* Intel SGX Launch Enclave Public Key Hash MSRs */
+#define MSR_IA32_SGXLEPUBKEYHASH0 0x0000008C
+#define MSR_IA32_SGXLEPUBKEYHASH1 0x0000008D
+#define MSR_IA32_SGXLEPUBKEYHASH2 0x0000008E
+#define MSR_IA32_SGXLEPUBKEYHASH3 0x0000008F
+
+#define MSR_IA32_SMM_MONITOR_CTL 0x0000009b
+#define MSR_IA32_SMBASE 0x0000009e
+
#define MSR_IA32_PERF_STATUS 0x00000198
#define MSR_IA32_PERF_CTL 0x00000199
+#define INTEL_PERF_CTL_MASK 0xffff
+
+/* AMD Branch Sampling configuration */
+#define MSR_AMD_DBG_EXTN_CFG 0xc000010f
+#define MSR_AMD_SAMP_BR_FROM 0xc0010300
+
+#define DBG_EXTN_CFG_LBRV2EN BIT_ULL(6)
#define MSR_IA32_MPERF 0x000000e7
#define MSR_IA32_APERF 0x000000e8
@@ -257,18 +817,29 @@
#define MSR_IA32_TEMPERATURE_TARGET 0x000001a2
+#define MSR_MISC_FEATURE_CONTROL 0x000001a4
+#define MSR_MISC_PWR_MGMT 0x000001aa
+
#define MSR_IA32_ENERGY_PERF_BIAS 0x000001b0
+#define ENERGY_PERF_BIAS_PERFORMANCE 0
+#define ENERGY_PERF_BIAS_BALANCE_PERFORMANCE 4
+#define ENERGY_PERF_BIAS_NORMAL 6
+#define ENERGY_PERF_BIAS_NORMAL_POWERSAVE 7
+#define ENERGY_PERF_BIAS_BALANCE_POWERSAVE 8
+#define ENERGY_PERF_BIAS_POWERSAVE 15
#define MSR_IA32_PACKAGE_THERM_STATUS 0x000001b1
#define PACKAGE_THERM_STATUS_PROCHOT (1 << 0)
#define PACKAGE_THERM_STATUS_POWER_LIMIT (1 << 10)
+#define PACKAGE_THERM_STATUS_HFI_UPDATED (1 << 26)
#define MSR_IA32_PACKAGE_THERM_INTERRUPT 0x000001b2
#define PACKAGE_THERM_INT_HIGH_ENABLE (1 << 0)
#define PACKAGE_THERM_INT_LOW_ENABLE (1 << 1)
#define PACKAGE_THERM_INT_PLN_ENABLE (1 << 24)
+#define PACKAGE_THERM_INT_HFI_ENABLE (1 << 25)
/* Thermal Thresholds Support */
#define THERM_INT_THRESHOLD0_ENABLE (1 << 15)
@@ -283,33 +854,77 @@
#define THERM_LOG_THRESHOLD1 (1 << 9)
/* MISC_ENABLE bits: architectural */
-#define MSR_IA32_MISC_ENABLE_FAST_STRING (1ULL << 0)
-#define MSR_IA32_MISC_ENABLE_TCC (1ULL << 1)
-#define MSR_IA32_MISC_ENABLE_EMON (1ULL << 7)
-#define MSR_IA32_MISC_ENABLE_BTS_UNAVAIL (1ULL << 11)
-#define MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL (1ULL << 12)
-#define MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP (1ULL << 16)
-#define MSR_IA32_MISC_ENABLE_MWAIT (1ULL << 18)
-#define MSR_IA32_MISC_ENABLE_LIMIT_CPUID (1ULL << 22)
-#define MSR_IA32_MISC_ENABLE_XTPR_DISABLE (1ULL << 23)
-#define MSR_IA32_MISC_ENABLE_XD_DISABLE (1ULL << 34)
+#define MSR_IA32_MISC_ENABLE_FAST_STRING_BIT 0
+#define MSR_IA32_MISC_ENABLE_FAST_STRING (1ULL << MSR_IA32_MISC_ENABLE_FAST_STRING_BIT)
+#define MSR_IA32_MISC_ENABLE_TCC_BIT 1
+#define MSR_IA32_MISC_ENABLE_TCC (1ULL << MSR_IA32_MISC_ENABLE_TCC_BIT)
+#define MSR_IA32_MISC_ENABLE_EMON_BIT 7
+#define MSR_IA32_MISC_ENABLE_EMON (1ULL << MSR_IA32_MISC_ENABLE_EMON_BIT)
+#define MSR_IA32_MISC_ENABLE_BTS_UNAVAIL_BIT 11
+#define MSR_IA32_MISC_ENABLE_BTS_UNAVAIL (1ULL << MSR_IA32_MISC_ENABLE_BTS_UNAVAIL_BIT)
+#define MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL_BIT 12
+#define MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL (1ULL << MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL_BIT)
+#define MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP_BIT 16
+#define MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP (1ULL << MSR_IA32_MISC_ENABLE_ENHANCED_SPEEDSTEP_BIT)
+#define MSR_IA32_MISC_ENABLE_MWAIT_BIT 18
+#define MSR_IA32_MISC_ENABLE_MWAIT (1ULL << MSR_IA32_MISC_ENABLE_MWAIT_BIT)
+#define MSR_IA32_MISC_ENABLE_LIMIT_CPUID_BIT 22
+#define MSR_IA32_MISC_ENABLE_LIMIT_CPUID (1ULL << MSR_IA32_MISC_ENABLE_LIMIT_CPUID_BIT)
+#define MSR_IA32_MISC_ENABLE_XTPR_DISABLE_BIT 23
+#define MSR_IA32_MISC_ENABLE_XTPR_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_XTPR_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_XD_DISABLE_BIT 34
+#define MSR_IA32_MISC_ENABLE_XD_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_XD_DISABLE_BIT)
/* MISC_ENABLE bits: model-specific, meaning may vary from core to core */
-#define MSR_IA32_MISC_ENABLE_X87_COMPAT (1ULL << 2)
-#define MSR_IA32_MISC_ENABLE_TM1 (1ULL << 3)
-#define MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE (1ULL << 4)
-#define MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE (1ULL << 6)
-#define MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK (1ULL << 8)
-#define MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE (1ULL << 9)
-#define MSR_IA32_MISC_ENABLE_FERR (1ULL << 10)
-#define MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX (1ULL << 10)
-#define MSR_IA32_MISC_ENABLE_TM2 (1ULL << 13)
-#define MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE (1ULL << 19)
-#define MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK (1ULL << 20)
-#define MSR_IA32_MISC_ENABLE_L1D_CONTEXT (1ULL << 24)
-#define MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE (1ULL << 37)
-#define MSR_IA32_MISC_ENABLE_TURBO_DISABLE (1ULL << 38)
-#define MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE (1ULL << 39)
+#define MSR_IA32_MISC_ENABLE_X87_COMPAT_BIT 2
+#define MSR_IA32_MISC_ENABLE_X87_COMPAT (1ULL << MSR_IA32_MISC_ENABLE_X87_COMPAT_BIT)
+#define MSR_IA32_MISC_ENABLE_TM1_BIT 3
+#define MSR_IA32_MISC_ENABLE_TM1 (1ULL << MSR_IA32_MISC_ENABLE_TM1_BIT)
+#define MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE_BIT 4
+#define MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_SPLIT_LOCK_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE_BIT 6
+#define MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_L3CACHE_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK_BIT 8
+#define MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK (1ULL << MSR_IA32_MISC_ENABLE_SUPPRESS_LOCK_BIT)
+#define MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE_BIT 9
+#define MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_PREFETCH_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_FERR_BIT 10
+#define MSR_IA32_MISC_ENABLE_FERR (1ULL << MSR_IA32_MISC_ENABLE_FERR_BIT)
+#define MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX_BIT 10
+#define MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX (1ULL << MSR_IA32_MISC_ENABLE_FERR_MULTIPLEX_BIT)
+#define MSR_IA32_MISC_ENABLE_TM2_BIT 13
+#define MSR_IA32_MISC_ENABLE_TM2 (1ULL << MSR_IA32_MISC_ENABLE_TM2_BIT)
+#define MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE_BIT 19
+#define MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_ADJ_PREF_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK_BIT 20
+#define MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK (1ULL << MSR_IA32_MISC_ENABLE_SPEEDSTEP_LOCK_BIT)
+#define MSR_IA32_MISC_ENABLE_L1D_CONTEXT_BIT 24
+#define MSR_IA32_MISC_ENABLE_L1D_CONTEXT (1ULL << MSR_IA32_MISC_ENABLE_L1D_CONTEXT_BIT)
+#define MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE_BIT 37
+#define MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_DCU_PREF_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_TURBO_DISABLE_BIT 38
+#define MSR_IA32_MISC_ENABLE_TURBO_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_TURBO_DISABLE_BIT)
+#define MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE_BIT 39
+#define MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE (1ULL << MSR_IA32_MISC_ENABLE_IP_PREF_DISABLE_BIT)
+
+/* MISC_FEATURES_ENABLES non-architectural features */
+#define MSR_MISC_FEATURES_ENABLES 0x00000140
+
+#define MSR_MISC_FEATURES_ENABLES_CPUID_FAULT_BIT 0
+#define MSR_MISC_FEATURES_ENABLES_CPUID_FAULT BIT_ULL(MSR_MISC_FEATURES_ENABLES_CPUID_FAULT_BIT)
+#define MSR_MISC_FEATURES_ENABLES_RING3MWAIT_BIT 1
+
+#define MSR_IA32_TSC_DEADLINE 0x000006E0
+
+
+#define MSR_TSX_FORCE_ABORT 0x0000010F
+
+#define MSR_TFA_RTM_FORCE_ABORT_BIT 0
+#define MSR_TFA_RTM_FORCE_ABORT BIT_ULL(MSR_TFA_RTM_FORCE_ABORT_BIT)
+#define MSR_TFA_TSX_CPUID_CLEAR_BIT 1
+#define MSR_TFA_TSX_CPUID_CLEAR BIT_ULL(MSR_TFA_TSX_CPUID_CLEAR_BIT)
+#define MSR_TFA_SDV_ENABLE_RTM_BIT 2
+#define MSR_TFA_SDV_ENABLE_RTM BIT_ULL(MSR_TFA_SDV_ENABLE_RTM_BIT)
/* P4/Xeon+ specific */
#define MSR_IA32_MCG_EAX 0x00000180
@@ -415,11 +1030,22 @@
#define MSR_CORE_PERF_FIXED_CTR0 0x00000309
#define MSR_CORE_PERF_FIXED_CTR1 0x0000030a
#define MSR_CORE_PERF_FIXED_CTR2 0x0000030b
+#define MSR_CORE_PERF_FIXED_CTR3 0x0000030c
#define MSR_CORE_PERF_FIXED_CTR_CTRL 0x0000038d
#define MSR_CORE_PERF_GLOBAL_STATUS 0x0000038e
#define MSR_CORE_PERF_GLOBAL_CTRL 0x0000038f
#define MSR_CORE_PERF_GLOBAL_OVF_CTRL 0x00000390
+#define MSR_PERF_METRICS 0x00000329
+
+/* PERF_GLOBAL_OVF_CTL bits */
+#define MSR_CORE_PERF_GLOBAL_OVF_CTRL_TRACE_TOPA_PMI_BIT 55
+#define MSR_CORE_PERF_GLOBAL_OVF_CTRL_TRACE_TOPA_PMI (1ULL << MSR_CORE_PERF_GLOBAL_OVF_CTRL_TRACE_TOPA_PMI_BIT)
+#define MSR_CORE_PERF_GLOBAL_OVF_CTRL_OVF_BUF_BIT 62
+#define MSR_CORE_PERF_GLOBAL_OVF_CTRL_OVF_BUF (1ULL << MSR_CORE_PERF_GLOBAL_OVF_CTRL_OVF_BUF_BIT)
+#define MSR_CORE_PERF_GLOBAL_OVF_CTRL_COND_CHGD_BIT 63
+#define MSR_CORE_PERF_GLOBAL_OVF_CTRL_COND_CHGD (1ULL << MSR_CORE_PERF_GLOBAL_OVF_CTRL_COND_CHGD_BIT)
+
/* Geode defined MSRs */
#define MSR_GEODE_BUSCONT_CONF0 0x00001900
@@ -437,11 +1063,58 @@
#define MSR_IA32_VMX_VMCS_ENUM 0x0000048a
#define MSR_IA32_VMX_PROCBASED_CTLS2 0x0000048b
#define MSR_IA32_VMX_EPT_VPID_CAP 0x0000048c
-
+#define MSR_IA32_VMX_TRUE_PINBASED_CTLS 0x0000048d
+#define MSR_IA32_VMX_TRUE_PROCBASED_CTLS 0x0000048e
+#define MSR_IA32_VMX_TRUE_EXIT_CTLS 0x0000048f
+#define MSR_IA32_VMX_TRUE_ENTRY_CTLS 0x00000490
+#define MSR_IA32_VMX_VMFUNC 0x00000491
+#define MSR_IA32_VMX_PROCBASED_CTLS3 0x00000492
+
+/* VMX_BASIC bits and bitmasks */
+#define VMX_BASIC_VMCS_SIZE_SHIFT 32
+#define VMX_BASIC_TRUE_CTLS (1ULL << 55)
+#define VMX_BASIC_64 0x0001000000000000LLU
+#define VMX_BASIC_MEM_TYPE_SHIFT 50
+#define VMX_BASIC_MEM_TYPE_MASK 0x003c000000000000LLU
+#define VMX_BASIC_MEM_TYPE_WB 6LLU
+#define VMX_BASIC_INOUT 0x0040000000000000LLU
+
+/* Resctrl MSRs: */
+/* - Intel: */
+#define MSR_IA32_L3_QOS_CFG 0xc81
+#define MSR_IA32_L2_QOS_CFG 0xc82
+#define MSR_IA32_QM_EVTSEL 0xc8d
+#define MSR_IA32_QM_CTR 0xc8e
+#define MSR_IA32_PQR_ASSOC 0xc8f
+#define MSR_IA32_L3_CBM_BASE 0xc90
+#define MSR_IA32_L2_CBM_BASE 0xd10
+#define MSR_IA32_MBA_THRTL_BASE 0xd50
+
+/* - AMD: */
+#define MSR_IA32_MBA_BW_BASE 0xc0000200
+#define MSR_IA32_SMBA_BW_BASE 0xc0000280
+#define MSR_IA32_EVT_CFG_BASE 0xc0000400
+
+/* MSR_IA32_VMX_MISC bits */
+#define MSR_IA32_VMX_MISC_INTEL_PT (1ULL << 14)
+#define MSR_IA32_VMX_MISC_VMWRITE_SHADOW_RO_FIELDS (1ULL << 29)
+#define MSR_IA32_VMX_MISC_PREEMPTION_TIMER_SCALE 0x1F
/* AMD-V MSRs */
#define MSR_VM_CR 0xc0010114
#define MSR_VM_IGNNE 0xc0010115
#define MSR_VM_HSAVE_PA 0xc0010117
+/* Hardware Feedback Interface */
+#define MSR_IA32_HW_FEEDBACK_PTR 0x17d0
+#define MSR_IA32_HW_FEEDBACK_CONFIG 0x17d1
+
+/* x2APIC locked status */
+#define MSR_IA32_XAPIC_DISABLE_STATUS 0xBD
+#define LEGACY_XAPIC_DISABLED BIT(0) /*
+ * x2APIC mode is locked and
+ * disabling x2APIC will cause
+ * a #GP
+ */
+
#endif /* _ASM_X86_MSR_INDEX_H */
diff --git a/arch/x86/include/asm/msr-trace.h b/arch/x86/include/asm/msr-trace.h
new file mode 100644
index 000000000000..f6adbe96856a
--- /dev/null
+++ b/arch/x86/include/asm/msr-trace.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM msr
+
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE msr-trace
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH asm/
+
+#if !defined(_TRACE_MSR_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_MSR_H
+
+#include <linux/tracepoint.h>
+
+/*
+ * Tracing for x86 model specific registers. Directly maps to the
+ * RDMSR/WRMSR instructions.
+ */
+
+DECLARE_EVENT_CLASS(msr_trace_class,
+ TP_PROTO(unsigned msr, u64 val, int failed),
+ TP_ARGS(msr, val, failed),
+ TP_STRUCT__entry(
+ __field( unsigned, msr )
+ __field( u64, val )
+ __field( int, failed )
+ ),
+ TP_fast_assign(
+ __entry->msr = msr;
+ __entry->val = val;
+ __entry->failed = failed;
+ ),
+ TP_printk("%x, value %llx%s",
+ __entry->msr,
+ __entry->val,
+ __entry->failed ? " #GP" : "")
+);
+
+DEFINE_EVENT(msr_trace_class, read_msr,
+ TP_PROTO(unsigned msr, u64 val, int failed),
+ TP_ARGS(msr, val, failed)
+);
+
+DEFINE_EVENT(msr_trace_class, write_msr,
+ TP_PROTO(unsigned msr, u64 val, int failed),
+ TP_ARGS(msr, val, failed)
+);
+
+DEFINE_EVENT(msr_trace_class, rdpmc,
+ TP_PROTO(unsigned msr, u64 val, int failed),
+ TP_ARGS(msr, val, failed)
+);
+
+#endif /* _TRACE_MSR_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 084ef95274cd..65ec1965cd28 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -1,31 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MSR_H
#define _ASM_X86_MSR_H
-#include <asm/msr-index.h>
+#include "msr-index.h"
#ifndef __ASSEMBLY__
-#include <linux/types.h>
-#include <linux/ioctl.h>
-
-#define X86_IOC_RDMSR_REGS _IOWR('c', 0xA0, __u32[8])
-#define X86_IOC_WRMSR_REGS _IOWR('c', 0xA1, __u32[8])
-
-#ifdef __KERNEL__
-
#include <asm/asm.h>
#include <asm/errno.h>
#include <asm/cpumask.h>
-
-struct msr {
- union {
- struct {
- u32 l;
- u32 h;
- };
- u64 q;
- };
-};
+#include <uapi/asm/msr.h>
+#include <asm/shared/msr.h>
struct msr_info {
u32 msr_no;
@@ -39,13 +24,15 @@ struct msr_regs_info {
int err;
};
-static inline unsigned long long native_read_tscp(unsigned int *aux)
-{
- unsigned long low, high;
- asm volatile(".byte 0x0f,0x01,0xf9"
- : "=a" (low), "=d" (high), "=c" (*aux));
- return low | ((u64)high << 32);
-}
+struct saved_msr {
+ bool valid;
+ struct msr_info info;
+};
+
+struct saved_msrs {
+ unsigned int num;
+ struct saved_msr *array;
+};
/*
* both i386 and x86_64 returns 64-bit value in edx:eax, but gcc's "A"
@@ -54,75 +41,183 @@ static inline unsigned long long native_read_tscp(unsigned int *aux)
* it means rax *or* rdx.
*/
#ifdef CONFIG_X86_64
-#define DECLARE_ARGS(val, low, high) unsigned low, high
-#define EAX_EDX_VAL(val, low, high) ((low) | ((u64)(high) << 32))
-#define EAX_EDX_ARGS(val, low, high) "a" (low), "d" (high)
+/* Using 64-bit values saves one instruction clearing the high half of low */
+#define DECLARE_ARGS(val, low, high) unsigned long low, high
+#define EAX_EDX_VAL(val, low, high) ((low) | (high) << 32)
#define EAX_EDX_RET(val, low, high) "=a" (low), "=d" (high)
#else
#define DECLARE_ARGS(val, low, high) unsigned long long val
#define EAX_EDX_VAL(val, low, high) (val)
-#define EAX_EDX_ARGS(val, low, high) "A" (val)
#define EAX_EDX_RET(val, low, high) "=A" (val)
#endif
-static inline unsigned long long native_read_msr(unsigned int msr)
+/*
+ * Be very careful with includes. This header is prone to include loops.
+ */
+#include <asm/atomic.h>
+#include <linux/tracepoint-defs.h>
+
+#ifdef CONFIG_TRACEPOINTS
+DECLARE_TRACEPOINT(read_msr);
+DECLARE_TRACEPOINT(write_msr);
+DECLARE_TRACEPOINT(rdpmc);
+extern void do_trace_write_msr(unsigned int msr, u64 val, int failed);
+extern void do_trace_read_msr(unsigned int msr, u64 val, int failed);
+extern void do_trace_rdpmc(unsigned int msr, u64 val, int failed);
+#else
+static inline void do_trace_write_msr(unsigned int msr, u64 val, int failed) {}
+static inline void do_trace_read_msr(unsigned int msr, u64 val, int failed) {}
+static inline void do_trace_rdpmc(unsigned int msr, u64 val, int failed) {}
+#endif
+
+/*
+ * __rdmsr() and __wrmsr() are the two primitives which are the bare minimum MSR
+ * accessors and should not have any tracing or other functionality piggybacking
+ * on them - those are *purely* for accessing MSRs and nothing more. So don't even
+ * think of extending them - you will be slapped with a stinking trout or a frozen
+ * shark will reach you, wherever you are! You've been warned.
+ */
+static __always_inline unsigned long long __rdmsr(unsigned int msr)
{
DECLARE_ARGS(val, low, high);
- asm volatile("rdmsr" : EAX_EDX_RET(val, low, high) : "c" (msr));
+ asm volatile("1: rdmsr\n"
+ "2:\n"
+ _ASM_EXTABLE_TYPE(1b, 2b, EX_TYPE_RDMSR)
+ : EAX_EDX_RET(val, low, high) : "c" (msr));
+
return EAX_EDX_VAL(val, low, high);
}
+static __always_inline void __wrmsr(unsigned int msr, u32 low, u32 high)
+{
+ asm volatile("1: wrmsr\n"
+ "2:\n"
+ _ASM_EXTABLE_TYPE(1b, 2b, EX_TYPE_WRMSR)
+ : : "c" (msr), "a"(low), "d" (high) : "memory");
+}
+
+#define native_rdmsr(msr, val1, val2) \
+do { \
+ u64 __val = __rdmsr((msr)); \
+ (void)((val1) = (u32)__val); \
+ (void)((val2) = (u32)(__val >> 32)); \
+} while (0)
+
+#define native_wrmsr(msr, low, high) \
+ __wrmsr(msr, low, high)
+
+#define native_wrmsrl(msr, val) \
+ __wrmsr((msr), (u32)((u64)(val)), \
+ (u32)((u64)(val) >> 32))
+
+static inline unsigned long long native_read_msr(unsigned int msr)
+{
+ unsigned long long val;
+
+ val = __rdmsr(msr);
+
+ if (tracepoint_enabled(read_msr))
+ do_trace_read_msr(msr, val, 0);
+
+ return val;
+}
+
static inline unsigned long long native_read_msr_safe(unsigned int msr,
int *err)
{
DECLARE_ARGS(val, low, high);
- asm volatile("2: rdmsr ; xor %[err],%[err]\n"
- "1:\n\t"
- ".section .fixup,\"ax\"\n\t"
- "3: mov %[fault],%[err] ; jmp 1b\n\t"
- ".previous\n\t"
- _ASM_EXTABLE(2b, 3b)
+ asm volatile("1: rdmsr ; xor %[err],%[err]\n"
+ "2:\n\t"
+ _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_RDMSR_SAFE, %[err])
: [err] "=r" (*err), EAX_EDX_RET(val, low, high)
- : "c" (msr), [fault] "i" (-EIO));
+ : "c" (msr));
+ if (tracepoint_enabled(read_msr))
+ do_trace_read_msr(msr, EAX_EDX_VAL(val, low, high), *err);
return EAX_EDX_VAL(val, low, high);
}
-static inline void native_write_msr(unsigned int msr,
- unsigned low, unsigned high)
+/* Can be uninlined because referenced by paravirt */
+static inline void notrace
+native_write_msr(unsigned int msr, u32 low, u32 high)
{
- asm volatile("wrmsr" : : "c" (msr), "a"(low), "d" (high) : "memory");
+ __wrmsr(msr, low, high);
+
+ if (tracepoint_enabled(write_msr))
+ do_trace_write_msr(msr, ((u64)high << 32 | low), 0);
}
/* Can be uninlined because referenced by paravirt */
-notrace static inline int native_write_msr_safe(unsigned int msr,
- unsigned low, unsigned high)
+static inline int notrace
+native_write_msr_safe(unsigned int msr, u32 low, u32 high)
{
int err;
- asm volatile("2: wrmsr ; xor %[err],%[err]\n"
- "1:\n\t"
- ".section .fixup,\"ax\"\n\t"
- "3: mov %[fault],%[err] ; jmp 1b\n\t"
- ".previous\n\t"
- _ASM_EXTABLE(2b, 3b)
+
+ asm volatile("1: wrmsr ; xor %[err],%[err]\n"
+ "2:\n\t"
+ _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_WRMSR_SAFE, %[err])
: [err] "=a" (err)
- : "c" (msr), "0" (low), "d" (high),
- [fault] "i" (-EIO)
+ : "c" (msr), "0" (low), "d" (high)
: "memory");
+ if (tracepoint_enabled(write_msr))
+ do_trace_write_msr(msr, ((u64)high << 32 | low), err);
return err;
}
-extern unsigned long long native_read_tsc(void);
+extern int rdmsr_safe_regs(u32 regs[8]);
+extern int wrmsr_safe_regs(u32 regs[8]);
+
+/**
+ * rdtsc() - returns the current TSC without ordering constraints
+ *
+ * rdtsc() returns the result of RDTSC as a 64-bit integer. The
+ * only ordering constraint it supplies is the ordering implied by
+ * "asm volatile": it will put the RDTSC in the place you expect. The
+ * CPU can and will speculatively execute that RDTSC, though, so the
+ * results can be non-monotonic if compared on different CPUs.
+ */
+static __always_inline unsigned long long rdtsc(void)
+{
+ DECLARE_ARGS(val, low, high);
-extern int native_rdmsr_safe_regs(u32 regs[8]);
-extern int native_wrmsr_safe_regs(u32 regs[8]);
+ asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
-static __always_inline unsigned long long __native_read_tsc(void)
+ return EAX_EDX_VAL(val, low, high);
+}
+
+/**
+ * rdtsc_ordered() - read the current TSC in program order
+ *
+ * rdtsc_ordered() returns the result of RDTSC as a 64-bit integer.
+ * It is ordered like a load to a global in-memory counter. It should
+ * be impossible to observe non-monotonic rdtsc_unordered() behavior
+ * across multiple CPUs as long as the TSC is synced.
+ */
+static __always_inline unsigned long long rdtsc_ordered(void)
{
DECLARE_ARGS(val, low, high);
- asm volatile("rdtsc" : EAX_EDX_RET(val, low, high));
+ /*
+ * The RDTSC instruction is not ordered relative to memory
+ * access. The Intel SDM and the AMD APM are both vague on this
+ * point, but empirically an RDTSC instruction can be
+ * speculatively executed before prior loads. An RDTSC
+ * immediately after an appropriate barrier appears to be
+ * ordered as a normal load, that is, it provides the same
+ * ordering guarantees as reading from a global memory location
+ * that some other imaginary CPU is updating continuously with a
+ * time stamp.
+ *
+ * Thus, use the preferred barrier on the respective CPU, aiming for
+ * RDTSCP as the default.
+ */
+ asm volatile(ALTERNATIVE_2("rdtsc",
+ "lfence; rdtsc", X86_FEATURE_LFENCE_RDTSC,
+ "rdtscp", X86_FEATURE_RDTSCP)
+ : EAX_EDX_RET(val, low, high)
+ /* RDTSCP clobbers ECX with MSR_TSC_AUX. */
+ :: "ecx");
return EAX_EDX_VAL(val, low, high);
}
@@ -132,10 +227,12 @@ static inline unsigned long long native_read_pmc(int counter)
DECLARE_ARGS(val, low, high);
asm volatile("rdpmc" : EAX_EDX_RET(val, low, high) : "c" (counter));
+ if (tracepoint_enabled(rdpmc))
+ do_trace_rdpmc(counter, EAX_EDX_VAL(val, low, high), 0);
return EAX_EDX_VAL(val, low, high);
}
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_XXL
#include <asm/paravirt.h>
#else
#include <linux/errno.h>
@@ -145,14 +242,14 @@ static inline unsigned long long native_read_pmc(int counter)
* pointer indirection), this allows gcc to optimize better
*/
-#define rdmsr(msr, val1, val2) \
+#define rdmsr(msr, low, high) \
do { \
u64 __val = native_read_msr((msr)); \
- (void)((val1) = (u32)__val); \
- (void)((val2) = (u32)(__val >> 32)); \
+ (void)((low) = (u32)__val); \
+ (void)((high) = (u32)(__val >> 32)); \
} while (0)
-static inline void wrmsr(unsigned msr, unsigned low, unsigned high)
+static inline void wrmsr(unsigned int msr, u32 low, u32 high)
{
native_write_msr(msr, low, high);
}
@@ -160,26 +257,28 @@ static inline void wrmsr(unsigned msr, unsigned low, unsigned high)
#define rdmsrl(msr, val) \
((val) = native_read_msr((msr)))
-#define wrmsrl(msr, val) \
- native_write_msr((msr), (u32)((u64)(val)), (u32)((u64)(val) >> 32))
+static inline void wrmsrl(unsigned int msr, u64 val)
+{
+ native_write_msr(msr, (u32)(val & 0xffffffffULL), (u32)(val >> 32));
+}
/* wrmsr with exception handling */
-static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high)
+static inline int wrmsr_safe(unsigned int msr, u32 low, u32 high)
{
return native_write_msr_safe(msr, low, high);
}
/* rdmsr with exception handling */
-#define rdmsr_safe(msr, p1, p2) \
+#define rdmsr_safe(msr, low, high) \
({ \
int __err; \
u64 __val = native_read_msr_safe((msr), &__err); \
- (*p1) = (u32)__val; \
- (*p2) = (u32)(__val >> 32); \
+ (*low) = (u32)__val; \
+ (*high) = (u32)(__val >> 32); \
__err; \
})
-static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
+static inline int rdmsrl_safe(unsigned int msr, unsigned long long *p)
{
int err;
@@ -187,49 +286,6 @@ static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
return err;
}
-static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
-{
- u32 gprs[8] = { 0 };
- int err;
-
- gprs[1] = msr;
- gprs[7] = 0x9c5a203a;
-
- err = native_rdmsr_safe_regs(gprs);
-
- *p = gprs[0] | ((u64)gprs[2] << 32);
-
- return err;
-}
-
-static inline int wrmsrl_amd_safe(unsigned msr, unsigned long long val)
-{
- u32 gprs[8] = { 0 };
-
- gprs[0] = (u32)val;
- gprs[1] = msr;
- gprs[2] = val >> 32;
- gprs[7] = 0x9c5a203a;
-
- return native_wrmsr_safe_regs(gprs);
-}
-
-static inline int rdmsr_safe_regs(u32 regs[8])
-{
- return native_rdmsr_safe_regs(regs);
-}
-
-static inline int wrmsr_safe_regs(u32 regs[8])
-{
- return native_wrmsr_safe_regs(regs);
-}
-
-#define rdtscl(low) \
- ((low) = (u32)__native_read_tsc())
-
-#define rdtscll(val) \
- ((val) = __native_read_tsc())
-
#define rdpmc(counter, low, high) \
do { \
u64 _l = native_read_pmc((counter)); \
@@ -237,35 +293,34 @@ do { \
(high) = (u32)(_l >> 32); \
} while (0)
-#define rdtscp(low, high, aux) \
-do { \
- unsigned long long _val = native_read_tscp(&(aux)); \
- (low) = (u32)_val; \
- (high) = (u32)(_val >> 32); \
-} while (0)
-
-#define rdtscpll(val, aux) (val) = native_read_tscp(&(aux))
-
-#endif /* !CONFIG_PARAVIRT */
+#define rdpmcl(counter, val) ((val) = native_read_pmc(counter))
+#endif /* !CONFIG_PARAVIRT_XXL */
-#define checking_wrmsrl(msr, val) wrmsr_safe((msr), (u32)(val), \
- (u32)((val) >> 32))
-
-#define write_tsc(val1, val2) wrmsr(MSR_IA32_TSC, (val1), (val2))
-
-#define write_rdtscp_aux(val) wrmsr(MSR_TSC_AUX, (val), 0)
+/*
+ * 64-bit version of wrmsr_safe():
+ */
+static inline int wrmsrl_safe(u32 msr, u64 val)
+{
+ return wrmsr_safe(msr, (u32)val, (u32)(val >> 32));
+}
struct msr *msrs_alloc(void);
void msrs_free(struct msr *msrs);
+int msr_set_bit(u32 msr, u8 bit);
+int msr_clear_bit(u32 msr, u8 bit);
#ifdef CONFIG_SMP
int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
+int rdmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 *q);
+int wrmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 q);
void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs);
void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs);
int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
+int rdmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 *q);
+int wrmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 q);
int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]);
int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]);
#else /* CONFIG_SMP */
@@ -279,15 +334,25 @@ static inline int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
wrmsr(msr_no, l, h);
return 0;
}
+static inline int rdmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
+{
+ rdmsrl(msr_no, *q);
+ return 0;
+}
+static inline int wrmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
+{
+ wrmsrl(msr_no, q);
+ return 0;
+}
static inline void rdmsr_on_cpus(const struct cpumask *m, u32 msr_no,
struct msr *msrs)
{
- rdmsr_on_cpu(0, msr_no, &(msrs[0].l), &(msrs[0].h));
+ rdmsr_on_cpu(0, msr_no, &(msrs[0].l), &(msrs[0].h));
}
static inline void wrmsr_on_cpus(const struct cpumask *m, u32 msr_no,
struct msr *msrs)
{
- wrmsr_on_cpu(0, msr_no, msrs[0].l, msrs[0].h);
+ wrmsr_on_cpu(0, msr_no, msrs[0].l, msrs[0].h);
}
static inline int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no,
u32 *l, u32 *h)
@@ -298,6 +363,14 @@ static inline int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
return wrmsr_safe(msr_no, l, h);
}
+static inline int rdmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
+{
+ return rdmsrl_safe(msr_no, q);
+}
+static inline int wrmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
+{
+ return wrmsrl_safe(msr_no, q);
+}
static inline int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8])
{
return rdmsr_safe_regs(regs);
@@ -307,6 +380,5 @@ static inline int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8])
return wrmsr_safe_regs(regs);
}
#endif /* CONFIG_SMP */
-#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_MSR_H */
diff --git a/arch/x86/include/asm/mtrr.h b/arch/x86/include/asm/mtrr.h
index 4365ffdb461f..f0eeaf6e5f5f 100644
--- a/arch/x86/include/asm/mtrr.h
+++ b/arch/x86/include/asm/mtrr.h
@@ -23,93 +23,15 @@
#ifndef _ASM_X86_MTRR_H
#define _ASM_X86_MTRR_H
-#include <linux/types.h>
-#include <linux/ioctl.h>
-#include <linux/errno.h>
+#include <uapi/asm/mtrr.h>
-#define MTRR_IOCTL_BASE 'M'
-
-struct mtrr_sentry {
- unsigned long base; /* Base address */
- unsigned int size; /* Size of region */
- unsigned int type; /* Type of region */
-};
-
-/* Warning: this structure has a different order from i386
- on x86-64. The 32bit emulation code takes care of that.
- But you need to use this for 64bit, otherwise your X server
- will break. */
-
-#ifdef __i386__
-struct mtrr_gentry {
- unsigned int regnum; /* Register number */
- unsigned long base; /* Base address */
- unsigned int size; /* Size of region */
- unsigned int type; /* Type of region */
-};
-
-#else /* __i386__ */
-
-struct mtrr_gentry {
- unsigned long base; /* Base address */
- unsigned int size; /* Size of region */
- unsigned int regnum; /* Register number */
- unsigned int type; /* Type of region */
-};
-#endif /* !__i386__ */
-
-struct mtrr_var_range {
- __u32 base_lo;
- __u32 base_hi;
- __u32 mask_lo;
- __u32 mask_hi;
-};
-
-/* In the Intel processor's MTRR interface, the MTRR type is always held in
- an 8 bit field: */
-typedef __u8 mtrr_type;
-
-#define MTRR_NUM_FIXED_RANGES 88
-#define MTRR_MAX_VAR_RANGES 256
-
-struct mtrr_state_type {
- struct mtrr_var_range var_ranges[MTRR_MAX_VAR_RANGES];
- mtrr_type fixed_ranges[MTRR_NUM_FIXED_RANGES];
- unsigned char enabled;
- unsigned char have_fixed;
- mtrr_type def_type;
-};
-
-#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg))
-#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
-
-/* These are the various ioctls */
-#define MTRRIOC_ADD_ENTRY _IOW(MTRR_IOCTL_BASE, 0, struct mtrr_sentry)
-#define MTRRIOC_SET_ENTRY _IOW(MTRR_IOCTL_BASE, 1, struct mtrr_sentry)
-#define MTRRIOC_DEL_ENTRY _IOW(MTRR_IOCTL_BASE, 2, struct mtrr_sentry)
-#define MTRRIOC_GET_ENTRY _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry)
-#define MTRRIOC_KILL_ENTRY _IOW(MTRR_IOCTL_BASE, 4, struct mtrr_sentry)
-#define MTRRIOC_ADD_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 5, struct mtrr_sentry)
-#define MTRRIOC_SET_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 6, struct mtrr_sentry)
-#define MTRRIOC_DEL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 7, struct mtrr_sentry)
-#define MTRRIOC_GET_PAGE_ENTRY _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry)
-#define MTRRIOC_KILL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 9, struct mtrr_sentry)
-
-/* These are the region types */
-#define MTRR_TYPE_UNCACHABLE 0
-#define MTRR_TYPE_WRCOMB 1
-/*#define MTRR_TYPE_ 2*/
-/*#define MTRR_TYPE_ 3*/
-#define MTRR_TYPE_WRTHROUGH 4
-#define MTRR_TYPE_WRPROT 5
-#define MTRR_TYPE_WRBACK 6
-#define MTRR_NUM_TYPES 7
-
-#ifdef __KERNEL__
-
-/* The following functions are for use by other drivers */
+/*
+ * The following functions are for use by other drivers that cannot use
+ * arch_phys_wc_add and arch_phys_wc_del.
+ */
# ifdef CONFIG_MTRR
-extern u8 mtrr_type_lookup(u64 addr, u64 end);
+void mtrr_bp_init(void);
+extern u8 mtrr_type_lookup(u64 addr, u64 end, u8 *uniform);
extern void mtrr_save_fixed_ranges(void *);
extern void mtrr_save_state(void);
extern int mtrr_add(unsigned long base, unsigned long size,
@@ -119,20 +41,19 @@ extern int mtrr_add_page(unsigned long base, unsigned long size,
extern int mtrr_del(int reg, unsigned long base, unsigned long size);
extern int mtrr_del_page(int reg, unsigned long base, unsigned long size);
extern void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi);
-extern void mtrr_ap_init(void);
-extern void mtrr_bp_init(void);
-extern void set_mtrr_aps_delayed_init(void);
-extern void mtrr_aps_init(void);
extern void mtrr_bp_restore(void);
extern int mtrr_trim_uncached_memory(unsigned long end_pfn);
extern int amd_special_default_mtrr(void);
+void mtrr_disable(void);
+void mtrr_enable(void);
+void mtrr_generic_set_state(void);
# else
-static inline u8 mtrr_type_lookup(u64 addr, u64 end)
+static inline u8 mtrr_type_lookup(u64 addr, u64 end, u8 *uniform)
{
/*
* Return no-MTRRs:
*/
- return 0xff;
+ return MTRR_TYPE_INVALID;
}
#define mtrr_save_fixed_ranges(arg) do {} while (0)
#define mtrr_save_state() do {} while (0)
@@ -161,12 +82,11 @@ static inline int mtrr_trim_uncached_memory(unsigned long end_pfn)
static inline void mtrr_centaur_report_mcr(int mcr, u32 lo, u32 hi)
{
}
-
-#define mtrr_ap_init() do {} while (0)
#define mtrr_bp_init() do {} while (0)
-#define set_mtrr_aps_delayed_init() do {} while (0)
-#define mtrr_aps_init() do {} while (0)
#define mtrr_bp_restore() do {} while (0)
+#define mtrr_disable() do {} while (0)
+#define mtrr_enable() do {} while (0)
+#define mtrr_generic_set_state() do {} while (0)
# endif
#ifdef CONFIG_COMPAT
@@ -200,6 +120,8 @@ struct mtrr_gentry32 {
_IOW(MTRR_IOCTL_BASE, 9, struct mtrr_sentry32)
#endif /* CONFIG_COMPAT */
-#endif /* __KERNEL__ */
+/* Bit fields for enabled in struct mtrr_state_type */
+#define MTRR_STATE_MTRR_FIXED_ENABLED 0x01
+#define MTRR_STATE_MTRR_ENABLED 0x02
#endif /* _ASM_X86_MTRR_H */
diff --git a/arch/x86/include/asm/mutex.h b/arch/x86/include/asm/mutex.h
deleted file mode 100644
index a731b9c573a6..000000000000
--- a/arch/x86/include/asm/mutex.h
+++ /dev/null
@@ -1,5 +0,0 @@
-#ifdef CONFIG_X86_32
-# include "mutex_32.h"
-#else
-# include "mutex_64.h"
-#endif
diff --git a/arch/x86/include/asm/mutex_32.h b/arch/x86/include/asm/mutex_32.h
deleted file mode 100644
index 03f90c8a5a7c..000000000000
--- a/arch/x86/include/asm/mutex_32.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Assembly implementation of the mutex fastpath, based on atomic
- * decrement/increment.
- *
- * started by Ingo Molnar:
- *
- * Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- */
-#ifndef _ASM_X86_MUTEX_32_H
-#define _ASM_X86_MUTEX_32_H
-
-#include <asm/alternative.h>
-
-/**
- * __mutex_fastpath_lock - try to take the lock by moving the count
- * from 1 to a 0 value
- * @count: pointer of type atomic_t
- * @fn: function to call if the original value was not 1
- *
- * Change the count from 1 to a value lower than 1, and call <fn> if it
- * wasn't 1 originally. This function MUST leave the value lower than 1
- * even when the "1" assertion wasn't true.
- */
-#define __mutex_fastpath_lock(count, fail_fn) \
-do { \
- unsigned int dummy; \
- \
- typecheck(atomic_t *, count); \
- typecheck_fn(void (*)(atomic_t *), fail_fn); \
- \
- asm volatile(LOCK_PREFIX " decl (%%eax)\n" \
- " jns 1f \n" \
- " call " #fail_fn "\n" \
- "1:\n" \
- : "=a" (dummy) \
- : "a" (count) \
- : "memory", "ecx", "edx"); \
-} while (0)
-
-
-/**
- * __mutex_fastpath_lock_retval - try to take the lock by moving the count
- * from 1 to a 0 value
- * @count: pointer of type atomic_t
- * @fail_fn: function to call if the original value was not 1
- *
- * Change the count from 1 to a value lower than 1, and call <fail_fn> if it
- * wasn't 1 originally. This function returns 0 if the fastpath succeeds,
- * or anything the slow path function returns
- */
-static inline int __mutex_fastpath_lock_retval(atomic_t *count,
- int (*fail_fn)(atomic_t *))
-{
- if (unlikely(atomic_dec_return(count) < 0))
- return fail_fn(count);
- else
- return 0;
-}
-
-/**
- * __mutex_fastpath_unlock - try to promote the mutex from 0 to 1
- * @count: pointer of type atomic_t
- * @fail_fn: function to call if the original value was not 0
- *
- * try to promote the mutex from 0 to 1. if it wasn't 0, call <fail_fn>.
- * In the failure case, this function is allowed to either set the value
- * to 1, or to set it to a value lower than 1.
- *
- * If the implementation sets it to a value of lower than 1, the
- * __mutex_slowpath_needs_to_unlock() macro needs to return 1, it needs
- * to return 0 otherwise.
- */
-#define __mutex_fastpath_unlock(count, fail_fn) \
-do { \
- unsigned int dummy; \
- \
- typecheck(atomic_t *, count); \
- typecheck_fn(void (*)(atomic_t *), fail_fn); \
- \
- asm volatile(LOCK_PREFIX " incl (%%eax)\n" \
- " jg 1f\n" \
- " call " #fail_fn "\n" \
- "1:\n" \
- : "=a" (dummy) \
- : "a" (count) \
- : "memory", "ecx", "edx"); \
-} while (0)
-
-#define __mutex_slowpath_needs_to_unlock() 1
-
-/**
- * __mutex_fastpath_trylock - try to acquire the mutex, without waiting
- *
- * @count: pointer of type atomic_t
- * @fail_fn: fallback function
- *
- * Change the count from 1 to a value lower than 1, and return 0 (failure)
- * if it wasn't 1 originally, or return 1 (success) otherwise. This function
- * MUST leave the value lower than 1 even when the "1" assertion wasn't true.
- * Additionally, if the value was < 0 originally, this function must not leave
- * it to 0 on failure.
- */
-static inline int __mutex_fastpath_trylock(atomic_t *count,
- int (*fail_fn)(atomic_t *))
-{
- /*
- * We have two variants here. The cmpxchg based one is the best one
- * because it never induce a false contention state. It is included
- * here because architectures using the inc/dec algorithms over the
- * xchg ones are much more likely to support cmpxchg natively.
- *
- * If not we fall back to the spinlock based variant - that is
- * just as efficient (and simpler) as a 'destructive' probing of
- * the mutex state would be.
- */
-#ifdef __HAVE_ARCH_CMPXCHG
- if (likely(atomic_cmpxchg(count, 1, 0) == 1))
- return 1;
- return 0;
-#else
- return fail_fn(count);
-#endif
-}
-
-#endif /* _ASM_X86_MUTEX_32_H */
diff --git a/arch/x86/include/asm/mutex_64.h b/arch/x86/include/asm/mutex_64.h
deleted file mode 100644
index 68a87b0f8e29..000000000000
--- a/arch/x86/include/asm/mutex_64.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * Assembly implementation of the mutex fastpath, based on atomic
- * decrement/increment.
- *
- * started by Ingo Molnar:
- *
- * Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- */
-#ifndef _ASM_X86_MUTEX_64_H
-#define _ASM_X86_MUTEX_64_H
-
-/**
- * __mutex_fastpath_lock - decrement and call function if negative
- * @v: pointer of type atomic_t
- * @fail_fn: function to call if the result is negative
- *
- * Atomically decrements @v and calls <fail_fn> if the result is negative.
- */
-#define __mutex_fastpath_lock(v, fail_fn) \
-do { \
- unsigned long dummy; \
- \
- typecheck(atomic_t *, v); \
- typecheck_fn(void (*)(atomic_t *), fail_fn); \
- \
- asm volatile(LOCK_PREFIX " decl (%%rdi)\n" \
- " jns 1f \n" \
- " call " #fail_fn "\n" \
- "1:" \
- : "=D" (dummy) \
- : "D" (v) \
- : "rax", "rsi", "rdx", "rcx", \
- "r8", "r9", "r10", "r11", "memory"); \
-} while (0)
-
-/**
- * __mutex_fastpath_lock_retval - try to take the lock by moving the count
- * from 1 to a 0 value
- * @count: pointer of type atomic_t
- * @fail_fn: function to call if the original value was not 1
- *
- * Change the count from 1 to a value lower than 1, and call <fail_fn> if
- * it wasn't 1 originally. This function returns 0 if the fastpath succeeds,
- * or anything the slow path function returns
- */
-static inline int __mutex_fastpath_lock_retval(atomic_t *count,
- int (*fail_fn)(atomic_t *))
-{
- if (unlikely(atomic_dec_return(count) < 0))
- return fail_fn(count);
- else
- return 0;
-}
-
-/**
- * __mutex_fastpath_unlock - increment and call function if nonpositive
- * @v: pointer of type atomic_t
- * @fail_fn: function to call if the result is nonpositive
- *
- * Atomically increments @v and calls <fail_fn> if the result is nonpositive.
- */
-#define __mutex_fastpath_unlock(v, fail_fn) \
-do { \
- unsigned long dummy; \
- \
- typecheck(atomic_t *, v); \
- typecheck_fn(void (*)(atomic_t *), fail_fn); \
- \
- asm volatile(LOCK_PREFIX " incl (%%rdi)\n" \
- " jg 1f\n" \
- " call " #fail_fn "\n" \
- "1:" \
- : "=D" (dummy) \
- : "D" (v) \
- : "rax", "rsi", "rdx", "rcx", \
- "r8", "r9", "r10", "r11", "memory"); \
-} while (0)
-
-#define __mutex_slowpath_needs_to_unlock() 1
-
-/**
- * __mutex_fastpath_trylock - try to acquire the mutex, without waiting
- *
- * @count: pointer of type atomic_t
- * @fail_fn: fallback function
- *
- * Change the count from 1 to 0 and return 1 (success), or return 0 (failure)
- * if it wasn't 1 originally. [the fallback function is never used on
- * x86_64, because all x86_64 CPUs have a CMPXCHG instruction.]
- */
-static inline int __mutex_fastpath_trylock(atomic_t *count,
- int (*fail_fn)(atomic_t *))
-{
- if (likely(atomic_cmpxchg(count, 1, 0) == 1))
- return 1;
- else
- return 0;
-}
-
-#endif /* _ASM_X86_MUTEX_64_H */
diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h
index bcdff997668c..778df05f8539 100644
--- a/arch/x86/include/asm/mwait.h
+++ b/arch/x86/include/asm/mwait.h
@@ -1,15 +1,144 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_MWAIT_H
#define _ASM_X86_MWAIT_H
+#include <linux/sched.h>
+#include <linux/sched/idle.h>
+
+#include <asm/cpufeature.h>
+#include <asm/nospec-branch.h>
+
#define MWAIT_SUBSTATE_MASK 0xf
#define MWAIT_CSTATE_MASK 0xf
#define MWAIT_SUBSTATE_SIZE 4
-#define MWAIT_MAX_NUM_CSTATES 8
+#define MWAIT_HINT2CSTATE(hint) (((hint) >> MWAIT_SUBSTATE_SIZE) & MWAIT_CSTATE_MASK)
+#define MWAIT_HINT2SUBSTATE(hint) ((hint) & MWAIT_CSTATE_MASK)
+#define MWAIT_C1_SUBSTATE_MASK 0xf0
#define CPUID_MWAIT_LEAF 5
#define CPUID5_ECX_EXTENSIONS_SUPPORTED 0x1
#define CPUID5_ECX_INTERRUPT_BREAK 0x2
#define MWAIT_ECX_INTERRUPT_BREAK 0x1
+#define MWAITX_ECX_TIMER_ENABLE BIT(1)
+#define MWAITX_MAX_WAIT_CYCLES UINT_MAX
+#define MWAITX_DISABLE_CSTATES 0xf0
+#define TPAUSE_C01_STATE 1
+#define TPAUSE_C02_STATE 0
+
+static __always_inline void __monitor(const void *eax, unsigned long ecx,
+ unsigned long edx)
+{
+ /* "monitor %eax, %ecx, %edx;" */
+ asm volatile(".byte 0x0f, 0x01, 0xc8;"
+ :: "a" (eax), "c" (ecx), "d"(edx));
+}
+
+static __always_inline void __monitorx(const void *eax, unsigned long ecx,
+ unsigned long edx)
+{
+ /* "monitorx %eax, %ecx, %edx;" */
+ asm volatile(".byte 0x0f, 0x01, 0xfa;"
+ :: "a" (eax), "c" (ecx), "d"(edx));
+}
+
+static __always_inline void __mwait(unsigned long eax, unsigned long ecx)
+{
+ mds_idle_clear_cpu_buffers();
+
+ /* "mwait %eax, %ecx;" */
+ asm volatile(".byte 0x0f, 0x01, 0xc9;"
+ :: "a" (eax), "c" (ecx));
+}
+
+/*
+ * MWAITX allows for a timer expiration to get the core out a wait state in
+ * addition to the default MWAIT exit condition of a store appearing at a
+ * monitored virtual address.
+ *
+ * Registers:
+ *
+ * MWAITX ECX[1]: enable timer if set
+ * MWAITX EBX[31:0]: max wait time expressed in SW P0 clocks. The software P0
+ * frequency is the same as the TSC frequency.
+ *
+ * Below is a comparison between MWAIT and MWAITX on AMD processors:
+ *
+ * MWAIT MWAITX
+ * opcode 0f 01 c9 | 0f 01 fb
+ * ECX[0] value of RFLAGS.IF seen by instruction
+ * ECX[1] unused/#GP if set | enable timer if set
+ * ECX[31:2] unused/#GP if set
+ * EAX unused (reserve for hint)
+ * EBX[31:0] unused | max wait time (P0 clocks)
+ *
+ * MONITOR MONITORX
+ * opcode 0f 01 c8 | 0f 01 fa
+ * EAX (logical) address to monitor
+ * ECX #GP if not zero
+ */
+static __always_inline void __mwaitx(unsigned long eax, unsigned long ebx,
+ unsigned long ecx)
+{
+ /* No MDS buffer clear as this is AMD/HYGON only */
+
+ /* "mwaitx %eax, %ebx, %ecx;" */
+ asm volatile(".byte 0x0f, 0x01, 0xfb;"
+ :: "a" (eax), "b" (ebx), "c" (ecx));
+}
+
+static __always_inline void __sti_mwait(unsigned long eax, unsigned long ecx)
+{
+ mds_idle_clear_cpu_buffers();
+ /* "mwait %eax, %ecx;" */
+ asm volatile("sti; .byte 0x0f, 0x01, 0xc9;"
+ :: "a" (eax), "c" (ecx));
+}
+
+/*
+ * This uses new MONITOR/MWAIT instructions on P4 processors with PNI,
+ * which can obviate IPI to trigger checking of need_resched.
+ * We execute MONITOR against need_resched and enter optimized wait state
+ * through MWAIT. Whenever someone changes need_resched, we would be woken
+ * up from MWAIT (without an IPI).
+ *
+ * New with Core Duo processors, MWAIT can take some hints based on CPU
+ * capability.
+ */
+static __always_inline void mwait_idle_with_hints(unsigned long eax, unsigned long ecx)
+{
+ if (static_cpu_has_bug(X86_BUG_MONITOR) || !current_set_polling_and_test()) {
+ if (static_cpu_has_bug(X86_BUG_CLFLUSH_MONITOR)) {
+ mb();
+ clflush((void *)&current_thread_info()->flags);
+ mb();
+ }
+
+ __monitor((void *)&current_thread_info()->flags, 0, 0);
+ if (!need_resched())
+ __mwait(eax, ecx);
+ }
+ current_clr_polling();
+}
+
+/*
+ * Caller can specify whether to enter C0.1 (low latency, less
+ * power saving) or C0.2 state (saves more power, but longer wakeup
+ * latency). This may be overridden by the IA32_UMWAIT_CONTROL MSR
+ * which can force requests for C0.2 to be downgraded to C0.1.
+ */
+static inline void __tpause(u32 ecx, u32 edx, u32 eax)
+{
+ /* "tpause %ecx, %edx, %eax;" */
+ #ifdef CONFIG_AS_TPAUSE
+ asm volatile("tpause %%ecx\n"
+ :
+ : "c"(ecx), "d"(edx), "a"(eax));
+ #else
+ asm volatile(".byte 0x66, 0x0f, 0xae, 0xf1\t\n"
+ :
+ : "c"(ecx), "d"(edx), "a"(eax));
+ #endif
+}
#endif /* _ASM_X86_MWAIT_H */
diff --git a/arch/x86/include/asm/nmi.h b/arch/x86/include/asm/nmi.h
index 4886a68f267e..5c5f1e56c404 100644
--- a/arch/x86/include/asm/nmi.h
+++ b/arch/x86/include/asm/nmi.h
@@ -1,13 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_NMI_H
#define _ASM_X86_NMI_H
+#include <linux/irq_work.h>
#include <linux/pm.h>
#include <asm/irq.h>
#include <asm/io.h>
#ifdef CONFIG_X86_LOCAL_APIC
-extern int avail_to_resrv_perfctr_nmi_bit(unsigned int);
extern int reserve_perfctr_nmi(unsigned int);
extern void release_perfctr_nmi(unsigned int);
extern int reserve_evntsel_nmi(unsigned int);
@@ -18,31 +19,48 @@ extern int proc_nmi_enabled(struct ctl_table *, int ,
void __user *, size_t *, loff_t *);
extern int unknown_nmi_panic;
-void arch_trigger_all_cpu_backtrace(void);
-#define arch_trigger_all_cpu_backtrace arch_trigger_all_cpu_backtrace
-#endif
-
-/*
- * Define some priorities for the nmi notifier call chain.
- *
- * Create a local nmi bit that has a higher priority than
- * external nmis, because the local ones are more frequent.
- *
- * Also setup some default high/normal/low settings for
- * subsystems to registers with. Using 4 bits to separate
- * the priorities. This can go a lot higher if needed be.
- */
-
-#define NMI_LOCAL_SHIFT 16 /* randomly picked */
-#define NMI_LOCAL_BIT (1ULL << NMI_LOCAL_SHIFT)
-#define NMI_HIGH_PRIOR (1ULL << 8)
-#define NMI_NORMAL_PRIOR (1ULL << 4)
-#define NMI_LOW_PRIOR (1ULL << 0)
-#define NMI_LOCAL_HIGH_PRIOR (NMI_LOCAL_BIT | NMI_HIGH_PRIOR)
-#define NMI_LOCAL_NORMAL_PRIOR (NMI_LOCAL_BIT | NMI_NORMAL_PRIOR)
-#define NMI_LOCAL_LOW_PRIOR (NMI_LOCAL_BIT | NMI_LOW_PRIOR)
+#endif /* CONFIG_X86_LOCAL_APIC */
+
+#define NMI_FLAG_FIRST 1
+
+enum {
+ NMI_LOCAL=0,
+ NMI_UNKNOWN,
+ NMI_SERR,
+ NMI_IO_CHECK,
+ NMI_MAX
+};
+
+#define NMI_DONE 0
+#define NMI_HANDLED 1
+
+typedef int (*nmi_handler_t)(unsigned int, struct pt_regs *);
+
+struct nmiaction {
+ struct list_head list;
+ nmi_handler_t handler;
+ u64 max_duration;
+ unsigned long flags;
+ const char *name;
+};
+
+#define register_nmi_handler(t, fn, fg, n, init...) \
+({ \
+ static struct nmiaction init fn##_na = { \
+ .list = LIST_HEAD_INIT(fn##_na.list), \
+ .handler = (fn), \
+ .name = (n), \
+ .flags = (fg), \
+ }; \
+ __register_nmi_handler((t), &fn##_na); \
+})
+
+int __register_nmi_handler(unsigned int, struct nmiaction *);
+
+void unregister_nmi_handler(unsigned int, const char *);
void stop_nmi(void);
void restart_nmi(void);
+void local_touch_nmi(void);
#endif /* _ASM_X86_NMI_H */
diff --git a/arch/x86/include/asm/nops.h b/arch/x86/include/asm/nops.h
index af788496020b..c5573eaa5bb9 100644
--- a/arch/x86/include/asm/nops.h
+++ b/arch/x86/include/asm/nops.h
@@ -1,120 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_NOPS_H
#define _ASM_X86_NOPS_H
-/* Define nops for use with alternative() */
+#include <asm/asm.h>
-/* generic versions from gas
- 1: nop
- the following instructions are NOT nops in 64-bit mode,
- for 64-bit mode use K8 or P6 nops instead
- 2: movl %esi,%esi
- 3: leal 0x00(%esi),%esi
- 4: leal 0x00(,%esi,1),%esi
- 6: leal 0x00000000(%esi),%esi
- 7: leal 0x00000000(,%esi,1),%esi
-*/
-#define GENERIC_NOP1 ".byte 0x90\n"
-#define GENERIC_NOP2 ".byte 0x89,0xf6\n"
-#define GENERIC_NOP3 ".byte 0x8d,0x76,0x00\n"
-#define GENERIC_NOP4 ".byte 0x8d,0x74,0x26,0x00\n"
-#define GENERIC_NOP5 GENERIC_NOP1 GENERIC_NOP4
-#define GENERIC_NOP6 ".byte 0x8d,0xb6,0x00,0x00,0x00,0x00\n"
-#define GENERIC_NOP7 ".byte 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00\n"
-#define GENERIC_NOP8 GENERIC_NOP1 GENERIC_NOP7
+/*
+ * Define nops for use with alternative() and for tracing.
+ */
-/* Opteron 64bit nops
- 1: nop
- 2: osp nop
- 3: osp osp nop
- 4: osp osp osp nop
-*/
-#define K8_NOP1 GENERIC_NOP1
-#define K8_NOP2 ".byte 0x66,0x90\n"
-#define K8_NOP3 ".byte 0x66,0x66,0x90\n"
-#define K8_NOP4 ".byte 0x66,0x66,0x66,0x90\n"
-#define K8_NOP5 K8_NOP3 K8_NOP2
-#define K8_NOP6 K8_NOP3 K8_NOP3
-#define K8_NOP7 K8_NOP4 K8_NOP3
-#define K8_NOP8 K8_NOP4 K8_NOP4
+#ifndef CONFIG_64BIT
-/* K7 nops
- uses eax dependencies (arbitrary choice)
- 1: nop
- 2: movl %eax,%eax
- 3: leal (,%eax,1),%eax
- 4: leal 0x00(,%eax,1),%eax
- 6: leal 0x00000000(%eax),%eax
- 7: leal 0x00000000(,%eax,1),%eax
-*/
-#define K7_NOP1 GENERIC_NOP1
-#define K7_NOP2 ".byte 0x8b,0xc0\n"
-#define K7_NOP3 ".byte 0x8d,0x04,0x20\n"
-#define K7_NOP4 ".byte 0x8d,0x44,0x20,0x00\n"
-#define K7_NOP5 K7_NOP4 ASM_NOP1
-#define K7_NOP6 ".byte 0x8d,0x80,0,0,0,0\n"
-#define K7_NOP7 ".byte 0x8D,0x04,0x05,0,0,0,0\n"
-#define K7_NOP8 K7_NOP7 ASM_NOP1
+/*
+ * Generic 32bit nops from GAS:
+ *
+ * 1: nop
+ * 2: movl %esi,%esi
+ * 3: leal 0x0(%esi),%esi
+ * 4: leal 0x0(%esi,%eiz,1),%esi
+ * 5: leal %ds:0x0(%esi,%eiz,1),%esi
+ * 6: leal 0x0(%esi),%esi
+ * 7: leal 0x0(%esi,%eiz,1),%esi
+ * 8: leal %ds:0x0(%esi,%eiz,1),%esi
+ *
+ * Except 5 and 8, which are DS prefixed 4 and 7 resp, where GAS would emit 2
+ * nop instructions.
+ */
+#define BYTES_NOP1 0x90
+#define BYTES_NOP2 0x89,0xf6
+#define BYTES_NOP3 0x8d,0x76,0x00
+#define BYTES_NOP4 0x8d,0x74,0x26,0x00
+#define BYTES_NOP5 0x3e,BYTES_NOP4
+#define BYTES_NOP6 0x8d,0xb6,0x00,0x00,0x00,0x00
+#define BYTES_NOP7 0x8d,0xb4,0x26,0x00,0x00,0x00,0x00
+#define BYTES_NOP8 0x3e,BYTES_NOP7
-/* P6 nops
- uses eax dependencies (Intel-recommended choice)
- 1: nop
- 2: osp nop
- 3: nopl (%eax)
- 4: nopl 0x00(%eax)
- 5: nopl 0x00(%eax,%eax,1)
- 6: osp nopl 0x00(%eax,%eax,1)
- 7: nopl 0x00000000(%eax)
- 8: nopl 0x00000000(%eax,%eax,1)
- Note: All the above are assumed to be a single instruction.
- There is kernel code that depends on this.
-*/
-#define P6_NOP1 GENERIC_NOP1
-#define P6_NOP2 ".byte 0x66,0x90\n"
-#define P6_NOP3 ".byte 0x0f,0x1f,0x00\n"
-#define P6_NOP4 ".byte 0x0f,0x1f,0x40,0\n"
-#define P6_NOP5 ".byte 0x0f,0x1f,0x44,0x00,0\n"
-#define P6_NOP6 ".byte 0x66,0x0f,0x1f,0x44,0x00,0\n"
-#define P6_NOP7 ".byte 0x0f,0x1f,0x80,0,0,0,0\n"
-#define P6_NOP8 ".byte 0x0f,0x1f,0x84,0x00,0,0,0,0\n"
-
-#if defined(CONFIG_MK7)
-#define ASM_NOP1 K7_NOP1
-#define ASM_NOP2 K7_NOP2
-#define ASM_NOP3 K7_NOP3
-#define ASM_NOP4 K7_NOP4
-#define ASM_NOP5 K7_NOP5
-#define ASM_NOP6 K7_NOP6
-#define ASM_NOP7 K7_NOP7
-#define ASM_NOP8 K7_NOP8
-#elif defined(CONFIG_X86_P6_NOP)
-#define ASM_NOP1 P6_NOP1
-#define ASM_NOP2 P6_NOP2
-#define ASM_NOP3 P6_NOP3
-#define ASM_NOP4 P6_NOP4
-#define ASM_NOP5 P6_NOP5
-#define ASM_NOP6 P6_NOP6
-#define ASM_NOP7 P6_NOP7
-#define ASM_NOP8 P6_NOP8
-#elif defined(CONFIG_X86_64)
-#define ASM_NOP1 K8_NOP1
-#define ASM_NOP2 K8_NOP2
-#define ASM_NOP3 K8_NOP3
-#define ASM_NOP4 K8_NOP4
-#define ASM_NOP5 K8_NOP5
-#define ASM_NOP6 K8_NOP6
-#define ASM_NOP7 K8_NOP7
-#define ASM_NOP8 K8_NOP8
#else
-#define ASM_NOP1 GENERIC_NOP1
-#define ASM_NOP2 GENERIC_NOP2
-#define ASM_NOP3 GENERIC_NOP3
-#define ASM_NOP4 GENERIC_NOP4
-#define ASM_NOP5 GENERIC_NOP5
-#define ASM_NOP6 GENERIC_NOP6
-#define ASM_NOP7 GENERIC_NOP7
-#define ASM_NOP8 GENERIC_NOP8
-#endif
+
+/*
+ * Generic 64bit nops from GAS:
+ *
+ * 1: nop
+ * 2: osp nop
+ * 3: nopl (%eax)
+ * 4: nopl 0x00(%eax)
+ * 5: nopl 0x00(%eax,%eax,1)
+ * 6: osp nopl 0x00(%eax,%eax,1)
+ * 7: nopl 0x00000000(%eax)
+ * 8: nopl 0x00000000(%eax,%eax,1)
+ */
+#define BYTES_NOP1 0x90
+#define BYTES_NOP2 0x66,BYTES_NOP1
+#define BYTES_NOP3 0x0f,0x1f,0x00
+#define BYTES_NOP4 0x0f,0x1f,0x40,0x00
+#define BYTES_NOP5 0x0f,0x1f,0x44,0x00,0x00
+#define BYTES_NOP6 0x66,BYTES_NOP5
+#define BYTES_NOP7 0x0f,0x1f,0x80,0x00,0x00,0x00,0x00
+#define BYTES_NOP8 0x0f,0x1f,0x84,0x00,0x00,0x00,0x00,0x00
+
+#endif /* CONFIG_64BIT */
+
+#define ASM_NOP1 _ASM_BYTES(BYTES_NOP1)
+#define ASM_NOP2 _ASM_BYTES(BYTES_NOP2)
+#define ASM_NOP3 _ASM_BYTES(BYTES_NOP3)
+#define ASM_NOP4 _ASM_BYTES(BYTES_NOP4)
+#define ASM_NOP5 _ASM_BYTES(BYTES_NOP5)
+#define ASM_NOP6 _ASM_BYTES(BYTES_NOP6)
+#define ASM_NOP7 _ASM_BYTES(BYTES_NOP7)
+#define ASM_NOP8 _ASM_BYTES(BYTES_NOP8)
#define ASM_NOP_MAX 8
+#ifndef __ASSEMBLY__
+extern const unsigned char * const x86_nops[];
+#endif
+
#endif /* _ASM_X86_NOPS_H */
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
new file mode 100644
index 000000000000..edb2b0cb8efe
--- /dev/null
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -0,0 +1,575 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _ASM_X86_NOSPEC_BRANCH_H_
+#define _ASM_X86_NOSPEC_BRANCH_H_
+
+#include <linux/static_key.h>
+#include <linux/objtool.h>
+#include <linux/linkage.h>
+
+#include <asm/alternative.h>
+#include <asm/cpufeatures.h>
+#include <asm/msr-index.h>
+#include <asm/unwind_hints.h>
+#include <asm/percpu.h>
+#include <asm/current.h>
+
+/*
+ * Call depth tracking for Intel SKL CPUs to address the RSB underflow
+ * issue in software.
+ *
+ * The tracking does not use a counter. It uses uses arithmetic shift
+ * right on call entry and logical shift left on return.
+ *
+ * The depth tracking variable is initialized to 0x8000.... when the call
+ * depth is zero. The arithmetic shift right sign extends the MSB and
+ * saturates after the 12th call. The shift count is 5 for both directions
+ * so the tracking covers 12 nested calls.
+ *
+ * Call
+ * 0: 0x8000000000000000 0x0000000000000000
+ * 1: 0xfc00000000000000 0xf000000000000000
+ * ...
+ * 11: 0xfffffffffffffff8 0xfffffffffffffc00
+ * 12: 0xffffffffffffffff 0xffffffffffffffe0
+ *
+ * After a return buffer fill the depth is credited 12 calls before the
+ * next stuffing has to take place.
+ *
+ * There is a inaccuracy for situations like this:
+ *
+ * 10 calls
+ * 5 returns
+ * 3 calls
+ * 4 returns
+ * 3 calls
+ * ....
+ *
+ * The shift count might cause this to be off by one in either direction,
+ * but there is still a cushion vs. the RSB depth. The algorithm does not
+ * claim to be perfect and it can be speculated around by the CPU, but it
+ * is considered that it obfuscates the problem enough to make exploitation
+ * extremly difficult.
+ */
+#define RET_DEPTH_SHIFT 5
+#define RSB_RET_STUFF_LOOPS 16
+#define RET_DEPTH_INIT 0x8000000000000000ULL
+#define RET_DEPTH_INIT_FROM_CALL 0xfc00000000000000ULL
+#define RET_DEPTH_CREDIT 0xffffffffffffffffULL
+
+#ifdef CONFIG_CALL_THUNKS_DEBUG
+# define CALL_THUNKS_DEBUG_INC_CALLS \
+ incq %gs:__x86_call_count;
+# define CALL_THUNKS_DEBUG_INC_RETS \
+ incq %gs:__x86_ret_count;
+# define CALL_THUNKS_DEBUG_INC_STUFFS \
+ incq %gs:__x86_stuffs_count;
+# define CALL_THUNKS_DEBUG_INC_CTXSW \
+ incq %gs:__x86_ctxsw_count;
+#else
+# define CALL_THUNKS_DEBUG_INC_CALLS
+# define CALL_THUNKS_DEBUG_INC_RETS
+# define CALL_THUNKS_DEBUG_INC_STUFFS
+# define CALL_THUNKS_DEBUG_INC_CTXSW
+#endif
+
+#if defined(CONFIG_CALL_DEPTH_TRACKING) && !defined(COMPILE_OFFSETS)
+
+#include <asm/asm-offsets.h>
+
+#define CREDIT_CALL_DEPTH \
+ movq $-1, PER_CPU_VAR(pcpu_hot + X86_call_depth);
+
+#define ASM_CREDIT_CALL_DEPTH \
+ movq $-1, PER_CPU_VAR(pcpu_hot + X86_call_depth);
+
+#define RESET_CALL_DEPTH \
+ mov $0x80, %rax; \
+ shl $56, %rax; \
+ movq %rax, PER_CPU_VAR(pcpu_hot + X86_call_depth);
+
+#define RESET_CALL_DEPTH_FROM_CALL \
+ mov $0xfc, %rax; \
+ shl $56, %rax; \
+ movq %rax, PER_CPU_VAR(pcpu_hot + X86_call_depth); \
+ CALL_THUNKS_DEBUG_INC_CALLS
+
+#define INCREMENT_CALL_DEPTH \
+ sarq $5, %gs:pcpu_hot + X86_call_depth; \
+ CALL_THUNKS_DEBUG_INC_CALLS
+
+#define ASM_INCREMENT_CALL_DEPTH \
+ sarq $5, PER_CPU_VAR(pcpu_hot + X86_call_depth); \
+ CALL_THUNKS_DEBUG_INC_CALLS
+
+#else
+#define CREDIT_CALL_DEPTH
+#define ASM_CREDIT_CALL_DEPTH
+#define RESET_CALL_DEPTH
+#define INCREMENT_CALL_DEPTH
+#define ASM_INCREMENT_CALL_DEPTH
+#define RESET_CALL_DEPTH_FROM_CALL
+#endif
+
+/*
+ * Fill the CPU return stack buffer.
+ *
+ * Each entry in the RSB, if used for a speculative 'ret', contains an
+ * infinite 'pause; lfence; jmp' loop to capture speculative execution.
+ *
+ * This is required in various cases for retpoline and IBRS-based
+ * mitigations for the Spectre variant 2 vulnerability. Sometimes to
+ * eliminate potentially bogus entries from the RSB, and sometimes
+ * purely to ensure that it doesn't get empty, which on some CPUs would
+ * allow predictions from other (unwanted!) sources to be used.
+ *
+ * We define a CPP macro such that it can be used from both .S files and
+ * inline assembly. It's possible to do a .macro and then include that
+ * from C via asm(".include <asm/nospec-branch.h>") but let's not go there.
+ */
+
+#define RETPOLINE_THUNK_SIZE 32
+#define RSB_CLEAR_LOOPS 32 /* To forcibly overwrite all entries */
+
+/*
+ * Common helper for __FILL_RETURN_BUFFER and __FILL_ONE_RETURN.
+ */
+#define __FILL_RETURN_SLOT \
+ ANNOTATE_INTRA_FUNCTION_CALL; \
+ call 772f; \
+ int3; \
+772:
+
+/*
+ * Stuff the entire RSB.
+ *
+ * Google experimented with loop-unrolling and this turned out to be
+ * the optimal version - two calls, each with their own speculation
+ * trap should their return address end up getting used, in a loop.
+ */
+#ifdef CONFIG_X86_64
+#define __FILL_RETURN_BUFFER(reg, nr) \
+ mov $(nr/2), reg; \
+771: \
+ __FILL_RETURN_SLOT \
+ __FILL_RETURN_SLOT \
+ add $(BITS_PER_LONG/8) * 2, %_ASM_SP; \
+ dec reg; \
+ jnz 771b; \
+ /* barrier for jnz misprediction */ \
+ lfence; \
+ ASM_CREDIT_CALL_DEPTH \
+ CALL_THUNKS_DEBUG_INC_CTXSW
+#else
+/*
+ * i386 doesn't unconditionally have LFENCE, as such it can't
+ * do a loop.
+ */
+#define __FILL_RETURN_BUFFER(reg, nr) \
+ .rept nr; \
+ __FILL_RETURN_SLOT; \
+ .endr; \
+ add $(BITS_PER_LONG/8) * nr, %_ASM_SP;
+#endif
+
+/*
+ * Stuff a single RSB slot.
+ *
+ * To mitigate Post-Barrier RSB speculation, one CALL instruction must be
+ * forced to retire before letting a RET instruction execute.
+ *
+ * On PBRSB-vulnerable CPUs, it is not safe for a RET to be executed
+ * before this point.
+ */
+#define __FILL_ONE_RETURN \
+ __FILL_RETURN_SLOT \
+ add $(BITS_PER_LONG/8), %_ASM_SP; \
+ lfence;
+
+#ifdef __ASSEMBLY__
+
+/*
+ * This should be used immediately before an indirect jump/call. It tells
+ * objtool the subsequent indirect jump/call is vouched safe for retpoline
+ * builds.
+ */
+.macro ANNOTATE_RETPOLINE_SAFE
+.Lhere_\@:
+ .pushsection .discard.retpoline_safe
+ .long .Lhere_\@ - .
+ .popsection
+.endm
+
+/*
+ * (ab)use RETPOLINE_SAFE on RET to annotate away 'bare' RET instructions
+ * vs RETBleed validation.
+ */
+#define ANNOTATE_UNRET_SAFE ANNOTATE_RETPOLINE_SAFE
+
+/*
+ * Abuse ANNOTATE_RETPOLINE_SAFE on a NOP to indicate UNRET_END, should
+ * eventually turn into it's own annotation.
+ */
+.macro VALIDATE_UNRET_END
+#if defined(CONFIG_NOINSTR_VALIDATION) && defined(CONFIG_CPU_UNRET_ENTRY)
+ ANNOTATE_RETPOLINE_SAFE
+ nop
+#endif
+.endm
+
+/*
+ * Equivalent to -mindirect-branch-cs-prefix; emit the 5 byte jmp/call
+ * to the retpoline thunk with a CS prefix when the register requires
+ * a RAX prefix byte to encode. Also see apply_retpolines().
+ */
+.macro __CS_PREFIX reg:req
+ .irp rs,r8,r9,r10,r11,r12,r13,r14,r15
+ .ifc \reg,\rs
+ .byte 0x2e
+ .endif
+ .endr
+.endm
+
+/*
+ * JMP_NOSPEC and CALL_NOSPEC macros can be used instead of a simple
+ * indirect jmp/call which may be susceptible to the Spectre variant 2
+ * attack.
+ */
+.macro JMP_NOSPEC reg:req
+#ifdef CONFIG_RETPOLINE
+ __CS_PREFIX \reg
+ jmp __x86_indirect_thunk_\reg
+#else
+ jmp *%\reg
+ int3
+#endif
+.endm
+
+.macro CALL_NOSPEC reg:req
+#ifdef CONFIG_RETPOLINE
+ __CS_PREFIX \reg
+ call __x86_indirect_thunk_\reg
+#else
+ call *%\reg
+#endif
+.endm
+
+ /*
+ * A simpler FILL_RETURN_BUFFER macro. Don't make people use the CPP
+ * monstrosity above, manually.
+ */
+.macro FILL_RETURN_BUFFER reg:req nr:req ftr:req ftr2=ALT_NOT(X86_FEATURE_ALWAYS)
+ ALTERNATIVE_2 "jmp .Lskip_rsb_\@", \
+ __stringify(__FILL_RETURN_BUFFER(\reg,\nr)), \ftr, \
+ __stringify(nop;nop;__FILL_ONE_RETURN), \ftr2
+
+.Lskip_rsb_\@:
+.endm
+
+#ifdef CONFIG_CPU_UNRET_ENTRY
+#define CALL_ZEN_UNTRAIN_RET "call zen_untrain_ret"
+#else
+#define CALL_ZEN_UNTRAIN_RET ""
+#endif
+
+/*
+ * Mitigate RETBleed for AMD/Hygon Zen uarch. Requires KERNEL CR3 because the
+ * return thunk isn't mapped into the userspace tables (then again, AMD
+ * typically has NO_MELTDOWN).
+ *
+ * While zen_untrain_ret() doesn't clobber anything but requires stack,
+ * entry_ibpb() will clobber AX, CX, DX.
+ *
+ * As such, this must be placed after every *SWITCH_TO_KERNEL_CR3 at a point
+ * where we have a stack but before any RET instruction.
+ */
+.macro UNTRAIN_RET
+#if defined(CONFIG_CPU_UNRET_ENTRY) || defined(CONFIG_CPU_IBPB_ENTRY) || \
+ defined(CONFIG_CALL_DEPTH_TRACKING)
+ VALIDATE_UNRET_END
+ ALTERNATIVE_3 "", \
+ CALL_ZEN_UNTRAIN_RET, X86_FEATURE_UNRET, \
+ "call entry_ibpb", X86_FEATURE_ENTRY_IBPB, \
+ __stringify(RESET_CALL_DEPTH), X86_FEATURE_CALL_DEPTH
+#endif
+.endm
+
+.macro UNTRAIN_RET_FROM_CALL
+#if defined(CONFIG_CPU_UNRET_ENTRY) || defined(CONFIG_CPU_IBPB_ENTRY) || \
+ defined(CONFIG_CALL_DEPTH_TRACKING)
+ VALIDATE_UNRET_END
+ ALTERNATIVE_3 "", \
+ CALL_ZEN_UNTRAIN_RET, X86_FEATURE_UNRET, \
+ "call entry_ibpb", X86_FEATURE_ENTRY_IBPB, \
+ __stringify(RESET_CALL_DEPTH_FROM_CALL), X86_FEATURE_CALL_DEPTH
+#endif
+.endm
+
+
+.macro CALL_DEPTH_ACCOUNT
+#ifdef CONFIG_CALL_DEPTH_TRACKING
+ ALTERNATIVE "", \
+ __stringify(ASM_INCREMENT_CALL_DEPTH), X86_FEATURE_CALL_DEPTH
+#endif
+.endm
+
+#else /* __ASSEMBLY__ */
+
+#define ANNOTATE_RETPOLINE_SAFE \
+ "999:\n\t" \
+ ".pushsection .discard.retpoline_safe\n\t" \
+ ".long 999b - .\n\t" \
+ ".popsection\n\t"
+
+typedef u8 retpoline_thunk_t[RETPOLINE_THUNK_SIZE];
+extern retpoline_thunk_t __x86_indirect_thunk_array[];
+extern retpoline_thunk_t __x86_indirect_call_thunk_array[];
+extern retpoline_thunk_t __x86_indirect_jump_thunk_array[];
+
+extern void __x86_return_thunk(void);
+extern void zen_untrain_ret(void);
+extern void entry_ibpb(void);
+
+#ifdef CONFIG_CALL_THUNKS
+extern void (*x86_return_thunk)(void);
+#else
+#define x86_return_thunk (&__x86_return_thunk)
+#endif
+
+#ifdef CONFIG_CALL_DEPTH_TRACKING
+extern void __x86_return_skl(void);
+
+static inline void x86_set_skl_return_thunk(void)
+{
+ x86_return_thunk = &__x86_return_skl;
+}
+
+#define CALL_DEPTH_ACCOUNT \
+ ALTERNATIVE("", \
+ __stringify(INCREMENT_CALL_DEPTH), \
+ X86_FEATURE_CALL_DEPTH)
+
+#ifdef CONFIG_CALL_THUNKS_DEBUG
+DECLARE_PER_CPU(u64, __x86_call_count);
+DECLARE_PER_CPU(u64, __x86_ret_count);
+DECLARE_PER_CPU(u64, __x86_stuffs_count);
+DECLARE_PER_CPU(u64, __x86_ctxsw_count);
+#endif
+#else
+static inline void x86_set_skl_return_thunk(void) {}
+
+#define CALL_DEPTH_ACCOUNT ""
+
+#endif
+
+#ifdef CONFIG_RETPOLINE
+
+#define GEN(reg) \
+ extern retpoline_thunk_t __x86_indirect_thunk_ ## reg;
+#include <asm/GEN-for-each-reg.h>
+#undef GEN
+
+#define GEN(reg) \
+ extern retpoline_thunk_t __x86_indirect_call_thunk_ ## reg;
+#include <asm/GEN-for-each-reg.h>
+#undef GEN
+
+#define GEN(reg) \
+ extern retpoline_thunk_t __x86_indirect_jump_thunk_ ## reg;
+#include <asm/GEN-for-each-reg.h>
+#undef GEN
+
+#ifdef CONFIG_X86_64
+
+/*
+ * Inline asm uses the %V modifier which is only in newer GCC
+ * which is ensured when CONFIG_RETPOLINE is defined.
+ */
+# define CALL_NOSPEC \
+ ALTERNATIVE_2( \
+ ANNOTATE_RETPOLINE_SAFE \
+ "call *%[thunk_target]\n", \
+ "call __x86_indirect_thunk_%V[thunk_target]\n", \
+ X86_FEATURE_RETPOLINE, \
+ "lfence;\n" \
+ ANNOTATE_RETPOLINE_SAFE \
+ "call *%[thunk_target]\n", \
+ X86_FEATURE_RETPOLINE_LFENCE)
+
+# define THUNK_TARGET(addr) [thunk_target] "r" (addr)
+
+#else /* CONFIG_X86_32 */
+/*
+ * For i386 we use the original ret-equivalent retpoline, because
+ * otherwise we'll run out of registers. We don't care about CET
+ * here, anyway.
+ */
+# define CALL_NOSPEC \
+ ALTERNATIVE_2( \
+ ANNOTATE_RETPOLINE_SAFE \
+ "call *%[thunk_target]\n", \
+ " jmp 904f;\n" \
+ " .align 16\n" \
+ "901: call 903f;\n" \
+ "902: pause;\n" \
+ " lfence;\n" \
+ " jmp 902b;\n" \
+ " .align 16\n" \
+ "903: lea 4(%%esp), %%esp;\n" \
+ " pushl %[thunk_target];\n" \
+ " ret;\n" \
+ " .align 16\n" \
+ "904: call 901b;\n", \
+ X86_FEATURE_RETPOLINE, \
+ "lfence;\n" \
+ ANNOTATE_RETPOLINE_SAFE \
+ "call *%[thunk_target]\n", \
+ X86_FEATURE_RETPOLINE_LFENCE)
+
+# define THUNK_TARGET(addr) [thunk_target] "rm" (addr)
+#endif
+#else /* No retpoline for C / inline asm */
+# define CALL_NOSPEC "call *%[thunk_target]\n"
+# define THUNK_TARGET(addr) [thunk_target] "rm" (addr)
+#endif
+
+/* The Spectre V2 mitigation variants */
+enum spectre_v2_mitigation {
+ SPECTRE_V2_NONE,
+ SPECTRE_V2_RETPOLINE,
+ SPECTRE_V2_LFENCE,
+ SPECTRE_V2_EIBRS,
+ SPECTRE_V2_EIBRS_RETPOLINE,
+ SPECTRE_V2_EIBRS_LFENCE,
+ SPECTRE_V2_IBRS,
+};
+
+/* The indirect branch speculation control variants */
+enum spectre_v2_user_mitigation {
+ SPECTRE_V2_USER_NONE,
+ SPECTRE_V2_USER_STRICT,
+ SPECTRE_V2_USER_STRICT_PREFERRED,
+ SPECTRE_V2_USER_PRCTL,
+ SPECTRE_V2_USER_SECCOMP,
+};
+
+/* The Speculative Store Bypass disable variants */
+enum ssb_mitigation {
+ SPEC_STORE_BYPASS_NONE,
+ SPEC_STORE_BYPASS_DISABLE,
+ SPEC_STORE_BYPASS_PRCTL,
+ SPEC_STORE_BYPASS_SECCOMP,
+};
+
+extern char __indirect_thunk_start[];
+extern char __indirect_thunk_end[];
+
+static __always_inline
+void alternative_msr_write(unsigned int msr, u64 val, unsigned int feature)
+{
+ asm volatile(ALTERNATIVE("", "wrmsr", %c[feature])
+ : : "c" (msr),
+ "a" ((u32)val),
+ "d" ((u32)(val >> 32)),
+ [feature] "i" (feature)
+ : "memory");
+}
+
+static inline void indirect_branch_prediction_barrier(void)
+{
+ u64 val = PRED_CMD_IBPB;
+
+ alternative_msr_write(MSR_IA32_PRED_CMD, val, X86_FEATURE_USE_IBPB);
+}
+
+/* The Intel SPEC CTRL MSR base value cache */
+extern u64 x86_spec_ctrl_base;
+DECLARE_PER_CPU(u64, x86_spec_ctrl_current);
+extern void update_spec_ctrl_cond(u64 val);
+extern u64 spec_ctrl_current(void);
+
+/*
+ * With retpoline, we must use IBRS to restrict branch prediction
+ * before calling into firmware.
+ *
+ * (Implemented as CPP macros due to header hell.)
+ */
+#define firmware_restrict_branch_speculation_start() \
+do { \
+ preempt_disable(); \
+ alternative_msr_write(MSR_IA32_SPEC_CTRL, \
+ spec_ctrl_current() | SPEC_CTRL_IBRS, \
+ X86_FEATURE_USE_IBRS_FW); \
+ alternative_msr_write(MSR_IA32_PRED_CMD, PRED_CMD_IBPB, \
+ X86_FEATURE_USE_IBPB_FW); \
+} while (0)
+
+#define firmware_restrict_branch_speculation_end() \
+do { \
+ alternative_msr_write(MSR_IA32_SPEC_CTRL, \
+ spec_ctrl_current(), \
+ X86_FEATURE_USE_IBRS_FW); \
+ preempt_enable(); \
+} while (0)
+
+DECLARE_STATIC_KEY_FALSE(switch_to_cond_stibp);
+DECLARE_STATIC_KEY_FALSE(switch_mm_cond_ibpb);
+DECLARE_STATIC_KEY_FALSE(switch_mm_always_ibpb);
+
+DECLARE_STATIC_KEY_FALSE(mds_user_clear);
+DECLARE_STATIC_KEY_FALSE(mds_idle_clear);
+
+DECLARE_STATIC_KEY_FALSE(switch_mm_cond_l1d_flush);
+
+DECLARE_STATIC_KEY_FALSE(mmio_stale_data_clear);
+
+#include <asm/segment.h>
+
+/**
+ * mds_clear_cpu_buffers - Mitigation for MDS and TAA vulnerability
+ *
+ * This uses the otherwise unused and obsolete VERW instruction in
+ * combination with microcode which triggers a CPU buffer flush when the
+ * instruction is executed.
+ */
+static __always_inline void mds_clear_cpu_buffers(void)
+{
+ static const u16 ds = __KERNEL_DS;
+
+ /*
+ * Has to be the memory-operand variant because only that
+ * guarantees the CPU buffer flush functionality according to
+ * documentation. The register-operand variant does not.
+ * Works with any segment selector, but a valid writable
+ * data segment is the fastest variant.
+ *
+ * "cc" clobber is required because VERW modifies ZF.
+ */
+ asm volatile("verw %[ds]" : : [ds] "m" (ds) : "cc");
+}
+
+/**
+ * mds_user_clear_cpu_buffers - Mitigation for MDS and TAA vulnerability
+ *
+ * Clear CPU buffers if the corresponding static key is enabled
+ */
+static __always_inline void mds_user_clear_cpu_buffers(void)
+{
+ if (static_branch_likely(&mds_user_clear))
+ mds_clear_cpu_buffers();
+}
+
+/**
+ * mds_idle_clear_cpu_buffers - Mitigation for MDS vulnerability
+ *
+ * Clear CPU buffers if the corresponding static key is enabled
+ */
+static __always_inline void mds_idle_clear_cpu_buffers(void)
+{
+ if (static_branch_likely(&mds_idle_clear))
+ mds_clear_cpu_buffers();
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_X86_NOSPEC_BRANCH_H_ */
diff --git a/arch/x86/include/asm/numa.h b/arch/x86/include/asm/numa.h
index a50fc9f493b3..e3bae2b60a0d 100644
--- a/arch/x86/include/asm/numa.h
+++ b/arch/x86/include/asm/numa.h
@@ -1,6 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_NUMA_H
#define _ASM_X86_NUMA_H
+#include <linux/nodemask.h>
+#include <linux/errno.h>
+
#include <asm/topology.h>
#include <asm/apicdef.h>
@@ -9,6 +13,15 @@
#define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
/*
+ * Too small node sizes may confuse the VM badly. Usually they
+ * result from BIOS bugs. So dont recognize nodes as standalone
+ * NUMA entities that have less than this amount of RAM listed:
+ */
+#define NODE_MIN_SIZE (4*1024*1024)
+
+extern int numa_off;
+
+/*
* __apicid_to_node[] stores the raw mapping between physical apicid and
* node and is used to initialize cpu_to_node mapping.
*
@@ -17,41 +30,62 @@
* numa_cpu_node().
*/
extern s16 __apicid_to_node[MAX_LOCAL_APIC];
+extern nodemask_t numa_nodes_parsed __initdata;
+
+extern int __init numa_add_memblk(int nodeid, u64 start, u64 end);
+extern void __init numa_set_distance(int from, int to, int distance);
static inline void set_apicid_to_node(int apicid, s16 node)
{
__apicid_to_node[apicid] = node;
}
+
+extern int numa_cpu_node(int cpu);
+
#else /* CONFIG_NUMA */
static inline void set_apicid_to_node(int apicid, s16 node)
{
}
+
+static inline int numa_cpu_node(int cpu)
+{
+ return NUMA_NO_NODE;
+}
#endif /* CONFIG_NUMA */
#ifdef CONFIG_X86_32
-# include "numa_32.h"
-#else
-# include "numa_64.h"
+# include <asm/numa_32.h>
#endif
#ifdef CONFIG_NUMA
-extern void __cpuinit numa_set_node(int cpu, int node);
-extern void __cpuinit numa_clear_node(int cpu);
-extern void __init numa_init_array(void);
+extern void numa_set_node(int cpu, int node);
+extern void numa_clear_node(int cpu);
extern void __init init_cpu_to_node(void);
-extern void __cpuinit numa_add_cpu(int cpu);
-extern void __cpuinit numa_remove_cpu(int cpu);
+extern void numa_add_cpu(int cpu);
+extern void numa_remove_cpu(int cpu);
+extern void init_gi_nodes(void);
#else /* CONFIG_NUMA */
static inline void numa_set_node(int cpu, int node) { }
static inline void numa_clear_node(int cpu) { }
-static inline void numa_init_array(void) { }
static inline void init_cpu_to_node(void) { }
static inline void numa_add_cpu(int cpu) { }
static inline void numa_remove_cpu(int cpu) { }
+static inline void init_gi_nodes(void) { }
#endif /* CONFIG_NUMA */
#ifdef CONFIG_DEBUG_PER_CPU_MAPS
void debug_cpumask_set_cpu(int cpu, int node, bool enable);
#endif
+#ifdef CONFIG_NUMA_EMU
+#define FAKE_NODE_MIN_SIZE ((u64)32 << 20)
+#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
+int numa_emu_cmdline(char *str);
+#else /* CONFIG_NUMA_EMU */
+static inline int numa_emu_cmdline(char *str)
+{
+ return -EINVAL;
+}
+#endif /* CONFIG_NUMA_EMU */
+
#endif /* _ASM_X86_NUMA_H */
diff --git a/arch/x86/include/asm/numa_32.h b/arch/x86/include/asm/numa_32.h
index c6beed1ef103..9c8e9e85be77 100644
--- a/arch/x86/include/asm/numa_32.h
+++ b/arch/x86/include/asm/numa_32.h
@@ -1,16 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_NUMA_32_H
#define _ASM_X86_NUMA_32_H
-extern int numa_off;
-
-extern int pxm_to_nid(int pxm);
-
-#ifdef CONFIG_NUMA
-extern int __cpuinit numa_cpu_node(int cpu);
-#else /* CONFIG_NUMA */
-static inline int numa_cpu_node(int cpu) { return NUMA_NO_NODE; }
-#endif /* CONFIG_NUMA */
-
#ifdef CONFIG_HIGHMEM
extern void set_highmem_pages_init(void);
#else
diff --git a/arch/x86/include/asm/numa_64.h b/arch/x86/include/asm/numa_64.h
deleted file mode 100644
index 344eb1790b46..000000000000
--- a/arch/x86/include/asm/numa_64.h
+++ /dev/null
@@ -1,42 +0,0 @@
-#ifndef _ASM_X86_NUMA_64_H
-#define _ASM_X86_NUMA_64_H
-
-#include <linux/nodemask.h>
-
-struct bootnode {
- u64 start;
- u64 end;
-};
-
-#define ZONE_ALIGN (1UL << (MAX_ORDER+PAGE_SHIFT))
-
-extern int numa_off;
-
-extern unsigned long numa_free_all_bootmem(void);
-extern void setup_node_bootmem(int nodeid, unsigned long start,
- unsigned long end);
-
-#ifdef CONFIG_NUMA
-/*
- * Too small node sizes may confuse the VM badly. Usually they
- * result from BIOS bugs. So dont recognize nodes as standalone
- * NUMA entities that have less than this amount of RAM listed:
- */
-#define NODE_MIN_SIZE (4*1024*1024)
-
-extern nodemask_t numa_nodes_parsed __initdata;
-
-extern int __cpuinit numa_cpu_node(int cpu);
-extern int __init numa_add_memblk(int nodeid, u64 start, u64 end);
-extern void __init numa_set_distance(int from, int to, int distance);
-
-#ifdef CONFIG_NUMA_EMU
-#define FAKE_NODE_MIN_SIZE ((u64)32 << 20)
-#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
-void numa_emu_cmdline(char *);
-#endif /* CONFIG_NUMA_EMU */
-#else
-static inline int numa_cpu_node(int cpu) { return NUMA_NO_NODE; }
-#endif
-
-#endif /* _ASM_X86_NUMA_64_H */
diff --git a/arch/x86/include/asm/numachip/numachip.h b/arch/x86/include/asm/numachip/numachip.h
new file mode 100644
index 000000000000..c64373a2d731
--- /dev/null
+++ b/arch/x86/include/asm/numachip/numachip.h
@@ -0,0 +1,20 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Numascale NumaConnect-specific header file
+ *
+ * Copyright (C) 2012 Numascale AS. All rights reserved.
+ *
+ * Send feedback to <support@numascale.com>
+ *
+ */
+
+#ifndef _ASM_X86_NUMACHIP_NUMACHIP_H
+#define _ASM_X86_NUMACHIP_NUMACHIP_H
+
+extern u8 numachip_system;
+extern int __init pci_numachip_init(void);
+
+#endif /* _ASM_X86_NUMACHIP_NUMACHIP_H */
diff --git a/arch/x86/include/asm/numachip/numachip_csr.h b/arch/x86/include/asm/numachip/numachip_csr.h
new file mode 100644
index 000000000000..29719eecdc2e
--- /dev/null
+++ b/arch/x86/include/asm/numachip/numachip_csr.h
@@ -0,0 +1,98 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Numascale NumaConnect-Specific Header file
+ *
+ * Copyright (C) 2011 Numascale AS. All rights reserved.
+ *
+ * Send feedback to <support@numascale.com>
+ *
+ */
+
+#ifndef _ASM_X86_NUMACHIP_NUMACHIP_CSR_H
+#define _ASM_X86_NUMACHIP_NUMACHIP_CSR_H
+
+#include <linux/smp.h>
+#include <linux/io.h>
+
+#define CSR_NODE_SHIFT 16
+#define CSR_NODE_BITS(p) (((unsigned long)(p)) << CSR_NODE_SHIFT)
+#define CSR_NODE_MASK 0x0fff /* 4K nodes */
+
+/* 32K CSR space, b15 indicates geo/non-geo */
+#define CSR_OFFSET_MASK 0x7fffUL
+#define CSR_G0_NODE_IDS (0x008 + (0 << 12))
+#define CSR_G3_EXT_IRQ_GEN (0x030 + (3 << 12))
+
+/*
+ * Local CSR space starts in global CSR space with "nodeid" = 0xfff0, however
+ * when using the direct mapping on x86_64, both start and size needs to be
+ * aligned with PMD_SIZE which is 2M
+ */
+#define NUMACHIP_LCSR_BASE 0x3ffffe000000ULL
+#define NUMACHIP_LCSR_LIM 0x3fffffffffffULL
+#define NUMACHIP_LCSR_SIZE (NUMACHIP_LCSR_LIM - NUMACHIP_LCSR_BASE + 1)
+#define NUMACHIP_LAPIC_BITS 8
+
+static inline void *lcsr_address(unsigned long offset)
+{
+ return __va(NUMACHIP_LCSR_BASE | (1UL << 15) |
+ CSR_NODE_BITS(0xfff0) | (offset & CSR_OFFSET_MASK));
+}
+
+static inline unsigned int read_lcsr(unsigned long offset)
+{
+ return swab32(readl(lcsr_address(offset)));
+}
+
+static inline void write_lcsr(unsigned long offset, unsigned int val)
+{
+ writel(swab32(val), lcsr_address(offset));
+}
+
+/*
+ * On NumaChip2, local CSR space is 16MB and starts at fixed offset below 4G
+ */
+
+#define NUMACHIP2_LCSR_BASE 0xf0000000UL
+#define NUMACHIP2_LCSR_SIZE 0x1000000UL
+#define NUMACHIP2_APIC_ICR 0x100000
+#define NUMACHIP2_TIMER_DEADLINE 0x200000
+#define NUMACHIP2_TIMER_INT 0x200008
+#define NUMACHIP2_TIMER_NOW 0x200018
+#define NUMACHIP2_TIMER_RESET 0x200020
+
+static inline void __iomem *numachip2_lcsr_address(unsigned long offset)
+{
+ return (void __iomem *)__va(NUMACHIP2_LCSR_BASE |
+ (offset & (NUMACHIP2_LCSR_SIZE - 1)));
+}
+
+static inline u32 numachip2_read32_lcsr(unsigned long offset)
+{
+ return readl(numachip2_lcsr_address(offset));
+}
+
+static inline u64 numachip2_read64_lcsr(unsigned long offset)
+{
+ return readq(numachip2_lcsr_address(offset));
+}
+
+static inline void numachip2_write32_lcsr(unsigned long offset, u32 val)
+{
+ writel(val, numachip2_lcsr_address(offset));
+}
+
+static inline void numachip2_write64_lcsr(unsigned long offset, u64 val)
+{
+ writeq(val, numachip2_lcsr_address(offset));
+}
+
+static inline unsigned int numachip2_timer(void)
+{
+ return (smp_processor_id() % 48) << 6;
+}
+
+#endif /* _ASM_X86_NUMACHIP_NUMACHIP_CSR_H */
diff --git a/arch/x86/include/asm/numaq.h b/arch/x86/include/asm/numaq.h
deleted file mode 100644
index 37c516545ec8..000000000000
--- a/arch/x86/include/asm/numaq.h
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * Written by: Patricia Gaughen, IBM Corporation
- *
- * Copyright (C) 2002, IBM Corp.
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <gone@us.ibm.com>
- */
-
-#ifndef _ASM_X86_NUMAQ_H
-#define _ASM_X86_NUMAQ_H
-
-#ifdef CONFIG_X86_NUMAQ
-
-extern int found_numaq;
-extern int get_memcfg_numaq(void);
-extern int pci_numaq_init(void);
-
-extern void *xquad_portio;
-
-#define XQUAD_PORTIO_BASE 0xfe400000
-#define XQUAD_PORTIO_QUAD 0x40000 /* 256k per quad. */
-#define XQUAD_PORT_ADDR(port, quad) (xquad_portio + (XQUAD_PORTIO_QUAD*quad) + port)
-
-/*
- * SYS_CFG_DATA_PRIV_ADDR, struct eachquadmem, and struct sys_cfg_data are the
- */
-#define SYS_CFG_DATA_PRIV_ADDR 0x0009d000 /* place for scd in private
- quad space */
-
-/*
- * Communication area for each processor on lynxer-processor tests.
- *
- * NOTE: If you change the size of this eachproc structure you need
- * to change the definition for EACH_QUAD_SIZE.
- */
-struct eachquadmem {
- unsigned int priv_mem_start; /* Starting address of this */
- /* quad's private memory. */
- /* This is always 0. */
- /* In MB. */
- unsigned int priv_mem_size; /* Size of this quad's */
- /* private memory. */
- /* In MB. */
- unsigned int low_shrd_mem_strp_start;/* Starting address of this */
- /* quad's low shared block */
- /* (untranslated). */
- /* In MB. */
- unsigned int low_shrd_mem_start; /* Starting address of this */
- /* quad's low shared memory */
- /* (untranslated). */
- /* In MB. */
- unsigned int low_shrd_mem_size; /* Size of this quad's low */
- /* shared memory. */
- /* In MB. */
- unsigned int lmmio_copb_start; /* Starting address of this */
- /* quad's local memory */
- /* mapped I/O in the */
- /* compatibility OPB. */
- /* In MB. */
- unsigned int lmmio_copb_size; /* Size of this quad's local */
- /* memory mapped I/O in the */
- /* compatibility OPB. */
- /* In MB. */
- unsigned int lmmio_nopb_start; /* Starting address of this */
- /* quad's local memory */
- /* mapped I/O in the */
- /* non-compatibility OPB. */
- /* In MB. */
- unsigned int lmmio_nopb_size; /* Size of this quad's local */
- /* memory mapped I/O in the */
- /* non-compatibility OPB. */
- /* In MB. */
- unsigned int io_apic_0_start; /* Starting address of I/O */
- /* APIC 0. */
- unsigned int io_apic_0_sz; /* Size I/O APIC 0. */
- unsigned int io_apic_1_start; /* Starting address of I/O */
- /* APIC 1. */
- unsigned int io_apic_1_sz; /* Size I/O APIC 1. */
- unsigned int hi_shrd_mem_start; /* Starting address of this */
- /* quad's high shared memory.*/
- /* In MB. */
- unsigned int hi_shrd_mem_size; /* Size of this quad's high */
- /* shared memory. */
- /* In MB. */
- unsigned int mps_table_addr; /* Address of this quad's */
- /* MPS tables from BIOS, */
- /* in system space.*/
- unsigned int lcl_MDC_pio_addr; /* Port-I/O address for */
- /* local access of MDC. */
- unsigned int rmt_MDC_mmpio_addr; /* MM-Port-I/O address for */
- /* remote access of MDC. */
- unsigned int mm_port_io_start; /* Starting address of this */
- /* quad's memory mapped Port */
- /* I/O space. */
- unsigned int mm_port_io_size; /* Size of this quad's memory*/
- /* mapped Port I/O space. */
- unsigned int mm_rmt_io_apic_start; /* Starting address of this */
- /* quad's memory mapped */
- /* remote I/O APIC space. */
- unsigned int mm_rmt_io_apic_size; /* Size of this quad's memory*/
- /* mapped remote I/O APIC */
- /* space. */
- unsigned int mm_isa_start; /* Starting address of this */
- /* quad's memory mapped ISA */
- /* space (contains MDC */
- /* memory space). */
- unsigned int mm_isa_size; /* Size of this quad's memory*/
- /* mapped ISA space (contains*/
- /* MDC memory space). */
- unsigned int rmt_qmi_addr; /* Remote addr to access QMI.*/
- unsigned int lcl_qmi_addr; /* Local addr to access QMI. */
-};
-
-/*
- * Note: This structure must be NOT be changed unless the multiproc and
- * OS are changed to reflect the new structure.
- */
-struct sys_cfg_data {
- unsigned int quad_id;
- unsigned int bsp_proc_id; /* Boot Strap Processor in this quad. */
- unsigned int scd_version; /* Version number of this table. */
- unsigned int first_quad_id;
- unsigned int quads_present31_0; /* 1 bit for each quad */
- unsigned int quads_present63_32; /* 1 bit for each quad */
- unsigned int config_flags;
- unsigned int boot_flags;
- unsigned int csr_start_addr; /* Absolute value (not in MB) */
- unsigned int csr_size; /* Absolute value (not in MB) */
- unsigned int lcl_apic_start_addr; /* Absolute value (not in MB) */
- unsigned int lcl_apic_size; /* Absolute value (not in MB) */
- unsigned int low_shrd_mem_base; /* 0 or 512MB or 1GB */
- unsigned int low_shrd_mem_quad_offset; /* 0,128M,256M,512M,1G */
- /* may not be totally populated */
- unsigned int split_mem_enbl; /* 0 for no low shared memory */
- unsigned int mmio_sz; /* Size of total system memory mapped I/O */
- /* (in MB). */
- unsigned int quad_spin_lock; /* Spare location used for quad */
- /* bringup. */
- unsigned int nonzero55; /* For checksumming. */
- unsigned int nonzeroaa; /* For checksumming. */
- unsigned int scd_magic_number;
- unsigned int system_type;
- unsigned int checksum;
- /*
- * memory configuration area for each quad
- */
- struct eachquadmem eq[MAX_NUMNODES]; /* indexed by quad id */
-};
-
-void numaq_tsc_disable(void);
-
-#else
-static inline int get_memcfg_numaq(void)
-{
- return 0;
-}
-#endif /* CONFIG_X86_NUMAQ */
-#endif /* _ASM_X86_NUMAQ_H */
-
diff --git a/arch/x86/include/asm/olpc.h b/arch/x86/include/asm/olpc.h
index 5ca6801b75f3..6fe76282aceb 100644
--- a/arch/x86/include/asm/olpc.h
+++ b/arch/x86/include/asm/olpc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/* OLPC machine specific definitions */
#ifndef _ASM_X86_OLPC_H
@@ -8,7 +9,6 @@
struct olpc_platform_t {
int flags;
uint32_t boardrev;
- int ecver;
};
#define OLPC_F_PRESENT 0x01
@@ -76,33 +76,13 @@ static inline int olpc_has_dcon(void)
#endif
-extern int pci_olpc_init(void);
-
-/* EC related functions */
-
-extern int olpc_ec_cmd(unsigned char cmd, unsigned char *inbuf, size_t inlen,
- unsigned char *outbuf, size_t outlen);
-
-extern int olpc_ec_mask_set(uint8_t bits);
-extern int olpc_ec_mask_unset(uint8_t bits);
-
-/* EC commands */
-
-#define EC_FIRMWARE_REV 0x08
-#define EC_WLAN_ENTER_RESET 0x35
-#define EC_WLAN_LEAVE_RESET 0x25
-
-/* SCI source values */
+#ifdef CONFIG_OLPC_XO1_PM
+extern void do_olpc_suspend_lowlevel(void);
+extern void olpc_xo1_pm_wakeup_set(u16 value);
+extern void olpc_xo1_pm_wakeup_clear(u16 value);
+#endif
-#define EC_SCI_SRC_EMPTY 0x00
-#define EC_SCI_SRC_GAME 0x01
-#define EC_SCI_SRC_BATTERY 0x02
-#define EC_SCI_SRC_BATSOC 0x04
-#define EC_SCI_SRC_BATERR 0x08
-#define EC_SCI_SRC_EBOOK 0x10
-#define EC_SCI_SRC_WLAN 0x20
-#define EC_SCI_SRC_ACPWR 0x40
-#define EC_SCI_SRC_ALL 0x7F
+extern int pci_olpc_init(void);
/* GPIO assignments */
@@ -116,7 +96,7 @@ extern int olpc_ec_mask_unset(uint8_t bits);
#define OLPC_GPIO_SMB_CLK 14
#define OLPC_GPIO_SMB_DATA 15
#define OLPC_GPIO_WORKAUX geode_gpio(24)
-#define OLPC_GPIO_LID geode_gpio(26)
-#define OLPC_GPIO_ECSCI geode_gpio(27)
+#define OLPC_GPIO_LID 26
+#define OLPC_GPIO_ECSCI 27
#endif /* _ASM_X86_OLPC_H */
diff --git a/arch/x86/include/asm/olpc_ofw.h b/arch/x86/include/asm/olpc_ofw.h
index c5d3a5abbb9f..8c2a1daf7f72 100644
--- a/arch/x86/include/asm/olpc_ofw.h
+++ b/arch/x86/include/asm/olpc_ofw.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_OLPC_OFW_H
#define _ASM_X86_OLPC_OFW_H
@@ -26,15 +27,12 @@ extern void setup_olpc_ofw_pgd(void);
/* check if OFW was detected during boot */
extern bool olpc_ofw_present(void);
+extern void olpc_dt_build_devicetree(void);
+
#else /* !CONFIG_OLPC */
static inline void olpc_ofw_detect(void) { }
static inline void setup_olpc_ofw_pgd(void) { }
-#endif /* !CONFIG_OLPC */
-
-#ifdef CONFIG_OF_PROMTREE
-extern void olpc_dt_build_devicetree(void);
-#else
static inline void olpc_dt_build_devicetree(void) { }
-#endif
+#endif /* !CONFIG_OLPC */
#endif /* _ASM_X86_OLPC_OFW_H */
diff --git a/arch/x86/include/asm/orc_lookup.h b/arch/x86/include/asm/orc_lookup.h
new file mode 100644
index 000000000000..241631282e43
--- /dev/null
+++ b/arch/x86/include/asm/orc_lookup.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
+ */
+#ifndef _ORC_LOOKUP_H
+#define _ORC_LOOKUP_H
+
+/*
+ * This is a lookup table for speeding up access to the .orc_unwind table.
+ * Given an input address offset, the corresponding lookup table entry
+ * specifies a subset of the .orc_unwind table to search.
+ *
+ * Each block represents the end of the previous range and the start of the
+ * next range. An extra block is added to give the last range an end.
+ *
+ * The block size should be a power of 2 to avoid a costly 'div' instruction.
+ *
+ * A block size of 256 was chosen because it roughly doubles unwinder
+ * performance while only adding ~5% to the ORC data footprint.
+ */
+#define LOOKUP_BLOCK_ORDER 8
+#define LOOKUP_BLOCK_SIZE (1 << LOOKUP_BLOCK_ORDER)
+
+#ifndef LINKER_SCRIPT
+
+extern unsigned int orc_lookup[];
+extern unsigned int orc_lookup_end[];
+
+#define LOOKUP_START_IP (unsigned long)_stext
+#define LOOKUP_STOP_IP (unsigned long)_etext
+
+#endif /* LINKER_SCRIPT */
+
+#endif /* _ORC_LOOKUP_H */
diff --git a/arch/x86/include/asm/orc_types.h b/arch/x86/include/asm/orc_types.h
new file mode 100644
index 000000000000..46d7e06763c9
--- /dev/null
+++ b/arch/x86/include/asm/orc_types.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2017 Josh Poimboeuf <jpoimboe@redhat.com>
+ */
+
+#ifndef _ORC_TYPES_H
+#define _ORC_TYPES_H
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+
+/*
+ * The ORC_REG_* registers are base registers which are used to find other
+ * registers on the stack.
+ *
+ * ORC_REG_PREV_SP, also known as DWARF Call Frame Address (CFA), is the
+ * address of the previous frame: the caller's SP before it called the current
+ * function.
+ *
+ * ORC_REG_UNDEFINED means the corresponding register's value didn't change in
+ * the current frame.
+ *
+ * The most commonly used base registers are SP and BP -- which the previous SP
+ * is usually based on -- and PREV_SP and UNDEFINED -- which the previous BP is
+ * usually based on.
+ *
+ * The rest of the base registers are needed for special cases like entry code
+ * and GCC realigned stacks.
+ */
+#define ORC_REG_UNDEFINED 0
+#define ORC_REG_PREV_SP 1
+#define ORC_REG_DX 2
+#define ORC_REG_DI 3
+#define ORC_REG_BP 4
+#define ORC_REG_SP 5
+#define ORC_REG_R10 6
+#define ORC_REG_R13 7
+#define ORC_REG_BP_INDIRECT 8
+#define ORC_REG_SP_INDIRECT 9
+#define ORC_REG_MAX 15
+
+#define ORC_TYPE_UNDEFINED 0
+#define ORC_TYPE_END_OF_STACK 1
+#define ORC_TYPE_CALL 2
+#define ORC_TYPE_REGS 3
+#define ORC_TYPE_REGS_PARTIAL 4
+
+#ifndef __ASSEMBLY__
+#include <asm/byteorder.h>
+
+/*
+ * This struct is more or less a vastly simplified version of the DWARF Call
+ * Frame Information standard. It contains only the necessary parts of DWARF
+ * CFI, simplified for ease of access by the in-kernel unwinder. It tells the
+ * unwinder how to find the previous SP and BP (and sometimes entry regs) on
+ * the stack for a given code address. Each instance of the struct corresponds
+ * to one or more code locations.
+ */
+struct orc_entry {
+ s16 sp_offset;
+ s16 bp_offset;
+#if defined(__LITTLE_ENDIAN_BITFIELD)
+ unsigned sp_reg:4;
+ unsigned bp_reg:4;
+ unsigned type:3;
+ unsigned signal:1;
+#elif defined(__BIG_ENDIAN_BITFIELD)
+ unsigned bp_reg:4;
+ unsigned sp_reg:4;
+ unsigned unused:4;
+ unsigned signal:1;
+ unsigned type:3;
+#endif
+} __packed;
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ORC_TYPES_H */
diff --git a/arch/x86/include/asm/page.h b/arch/x86/include/asm/page.h
index 8ca82839288a..d18e5c332cb9 100644
--- a/arch/x86/include/asm/page.h
+++ b/arch/x86/include/asm/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PAGE_H
#define _ASM_X86_PAGE_H
@@ -17,6 +18,10 @@
struct page;
+#include <linux/range.h>
+extern struct range pfn_mapped[];
+extern int nr_pfn_mapped;
+
static inline void clear_user_page(void *page, unsigned long vaddr,
struct page *pg)
{
@@ -29,11 +34,13 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
copy_page(to, from);
}
-#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
- alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
-#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
+#define vma_alloc_zeroed_movable_folio(vma, vaddr) \
+ vma_alloc_folio(GFP_HIGHUSER_MOVABLE | __GFP_ZERO, 0, vma, vaddr, false)
+#ifndef __pa
#define __pa(x) __phys_addr((unsigned long)(x))
+#endif
+
#define __pa_nodebug(x) __phys_addr_nodebug((unsigned long)(x))
/* __pa_symbol should be used for C visible symbols.
This seems to be the official gcc blessed way to do such arithmetic. */
@@ -44,9 +51,12 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
* case properly. Once all supported versions of gcc understand it, we can
* remove this Voodoo magic stuff. (i.e. once gcc3.x is deprecated)
*/
-#define __pa_symbol(x) __pa(__phys_reloc_hide((unsigned long)(x)))
+#define __pa_symbol(x) \
+ __phys_addr_symbol(__phys_reloc_hide((unsigned long)(x)))
+#ifndef __va
#define __va(x) ((void *)((unsigned long)(x)+PAGE_OFFSET))
+#endif
#define __boot_va(x) __va(x)
#define __boot_pa(x) __pa(x)
@@ -60,12 +70,22 @@ static inline void copy_user_page(void *to, void *from, unsigned long vaddr,
extern bool __virt_addr_valid(unsigned long kaddr);
#define virt_addr_valid(kaddr) __virt_addr_valid((unsigned long) (kaddr))
+static __always_inline u64 __canonical_address(u64 vaddr, u8 vaddr_bits)
+{
+ return ((s64)vaddr << (64 - vaddr_bits)) >> (64 - vaddr_bits);
+}
+
+static __always_inline u64 __is_canonical_address(u64 vaddr, u8 vaddr_bits)
+{
+ return __canonical_address(vaddr, vaddr_bits) == vaddr;
+}
+
#endif /* __ASSEMBLY__ */
#include <asm-generic/memory_model.h>
#include <asm-generic/getorder.h>
-#define __HAVE_ARCH_GATE_AREA 1
+#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
#endif /* __KERNEL__ */
#endif /* _ASM_X86_PAGE_H */
diff --git a/arch/x86/include/asm/page_32.h b/arch/x86/include/asm/page_32.h
index da4e762406f7..580d71aca65a 100644
--- a/arch/x86/include/asm/page_32.h
+++ b/arch/x86/include/asm/page_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PAGE_32_H
#define _ASM_X86_PAGE_32_H
@@ -5,35 +6,15 @@
#ifndef __ASSEMBLY__
-#ifdef CONFIG_HUGETLB_PAGE
-#define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
-#endif
-
#define __phys_addr_nodebug(x) ((x) - PAGE_OFFSET)
#ifdef CONFIG_DEBUG_VIRTUAL
extern unsigned long __phys_addr(unsigned long);
#else
#define __phys_addr(x) __phys_addr_nodebug(x)
#endif
+#define __phys_addr_symbol(x) __phys_addr(x)
#define __phys_reloc_hide(x) RELOC_HIDE((x), 0)
-#ifdef CONFIG_FLATMEM
-#define pfn_valid(pfn) ((pfn) < max_mapnr)
-#endif /* CONFIG_FLATMEM */
-
-#ifdef CONFIG_X86_USE_3DNOW
-#include <asm/mmx.h>
-
-static inline void clear_page(void *page)
-{
- mmx_clear_page(page);
-}
-
-static inline void copy_page(void *to, void *from)
-{
- mmx_copy_page(to, from);
-}
-#else /* !CONFIG_X86_USE_3DNOW */
#include <linux/string.h>
static inline void clear_page(void *page)
@@ -45,7 +26,6 @@ static inline void copy_page(void *to, void *from)
{
memcpy(to, from, PAGE_SIZE);
}
-#endif /* CONFIG_X86_3DNOW */
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_PAGE_32_H */
diff --git a/arch/x86/include/asm/page_32_types.h b/arch/x86/include/asm/page_32_types.h
index ade619ff9e2a..faf9cc1c14bb 100644
--- a/arch/x86/include/asm/page_32_types.h
+++ b/arch/x86/include/asm/page_32_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PAGE_32_DEFS_H
#define _ASM_X86_PAGE_32_DEFS_H
@@ -13,21 +14,26 @@
* If you want more physical memory than this then see the CONFIG_HIGHMEM4G
* and CONFIG_HIGHMEM64G options in the kernel configuration.
*/
-#define __PAGE_OFFSET _AC(CONFIG_PAGE_OFFSET, UL)
+#define __PAGE_OFFSET_BASE _AC(CONFIG_PAGE_OFFSET, UL)
+#define __PAGE_OFFSET __PAGE_OFFSET_BASE
-#define THREAD_ORDER 1
-#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
+#define __START_KERNEL_map __PAGE_OFFSET
-#define STACKFAULT_STACK 0
-#define DOUBLEFAULT_STACK 1
-#define NMI_STACK 0
-#define DEBUG_STACK 0
-#define MCE_STACK 0
-#define N_EXCEPTION_STACKS 1
+#define THREAD_SIZE_ORDER 1
+#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
+
+#define IRQ_STACK_SIZE THREAD_SIZE
+
+#define N_EXCEPTION_STACKS 1
#ifdef CONFIG_X86_PAE
-/* 44=32+12, the limit we can fit into an unsigned long pfn */
-#define __PHYSICAL_MASK_SHIFT 44
+/*
+ * This is beyond the 44 bit limit imposed by the 32bit long pfns,
+ * but we need the full mask to make sure inverted PROT_NONE
+ * entries have all the host bits set in a guest.
+ * The real limit is still 44 bits.
+ */
+#define __PHYSICAL_MASK_SHIFT 52
#define __VIRTUAL_MASK_SHIFT 32
#else /* !CONFIG_X86_PAE */
@@ -36,7 +42,24 @@
#endif /* CONFIG_X86_PAE */
/*
- * Kernel image size is limited to 512 MB (see in arch/x86/kernel/head_32.S)
+ * User space process size: 3GB (default).
+ */
+#define IA32_PAGE_OFFSET __PAGE_OFFSET
+#define TASK_SIZE __PAGE_OFFSET
+#define TASK_SIZE_LOW TASK_SIZE
+#define TASK_SIZE_MAX TASK_SIZE
+#define DEFAULT_MAP_WINDOW TASK_SIZE
+#define STACK_TOP TASK_SIZE
+#define STACK_TOP_MAX STACK_TOP
+
+/*
+ * In spite of the name, KERNEL_IMAGE_SIZE is a limit on the maximum virtual
+ * address for the kernel image, rather than the limit on the size itself. On
+ * 32-bit, this is not a strict limit, but this value is used to limit the
+ * link-time virtual address range of the kernel, and by KASLR to limit the
+ * randomized address from which the kernel is executed. A relocatable kernel
+ * can be loaded somewhat higher than KERNEL_IMAGE_SIZE as long as enough space
+ * remains for the vmalloc area.
*/
#define KERNEL_IMAGE_SIZE (512 * 1024 * 1024)
diff --git a/arch/x86/include/asm/page_64.h b/arch/x86/include/asm/page_64.h
index 072694ed81a5..cc6b8e087192 100644
--- a/arch/x86/include/asm/page_64.h
+++ b/arch/x86/include/asm/page_64.h
@@ -1,6 +1,102 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PAGE_64_H
#define _ASM_X86_PAGE_64_H
#include <asm/page_64_types.h>
+#ifndef __ASSEMBLY__
+#include <asm/cpufeatures.h>
+#include <asm/alternative.h>
+
+#include <linux/kmsan-checks.h>
+
+/* duplicated to the one in bootmem.h */
+extern unsigned long max_pfn;
+extern unsigned long phys_base;
+
+extern unsigned long page_offset_base;
+extern unsigned long vmalloc_base;
+extern unsigned long vmemmap_base;
+
+static __always_inline unsigned long __phys_addr_nodebug(unsigned long x)
+{
+ unsigned long y = x - __START_KERNEL_map;
+
+ /* use the carry flag to determine if x was < __START_KERNEL_map */
+ x = y + ((x > y) ? phys_base : (__START_KERNEL_map - PAGE_OFFSET));
+
+ return x;
+}
+
+#ifdef CONFIG_DEBUG_VIRTUAL
+extern unsigned long __phys_addr(unsigned long);
+extern unsigned long __phys_addr_symbol(unsigned long);
+#else
+#define __phys_addr(x) __phys_addr_nodebug(x)
+#define __phys_addr_symbol(x) \
+ ((unsigned long)(x) - __START_KERNEL_map + phys_base)
+#endif
+
+#define __phys_reloc_hide(x) (x)
+
+void clear_page_orig(void *page);
+void clear_page_rep(void *page);
+void clear_page_erms(void *page);
+
+static inline void clear_page(void *page)
+{
+ /*
+ * Clean up KMSAN metadata for the page being cleared. The assembly call
+ * below clobbers @page, so we perform unpoisoning before it.
+ */
+ kmsan_unpoison_memory(page, PAGE_SIZE);
+ alternative_call_2(clear_page_orig,
+ clear_page_rep, X86_FEATURE_REP_GOOD,
+ clear_page_erms, X86_FEATURE_ERMS,
+ "=D" (page),
+ "0" (page)
+ : "cc", "memory", "rax", "rcx");
+}
+
+void copy_page(void *to, void *from);
+
+#ifdef CONFIG_X86_5LEVEL
+/*
+ * User space process size. This is the first address outside the user range.
+ * There are a few constraints that determine this:
+ *
+ * On Intel CPUs, if a SYSCALL instruction is at the highest canonical
+ * address, then that syscall will enter the kernel with a
+ * non-canonical return address, and SYSRET will explode dangerously.
+ * We avoid this particular problem by preventing anything
+ * from being mapped at the maximum canonical address.
+ *
+ * On AMD CPUs in the Ryzen family, there's a nasty bug in which the
+ * CPUs malfunction if they execute code from the highest canonical page.
+ * They'll speculate right off the end of the canonical space, and
+ * bad things happen. This is worked around in the same way as the
+ * Intel problem.
+ *
+ * With page table isolation enabled, we map the LDT in ... [stay tuned]
+ */
+static __always_inline unsigned long task_size_max(void)
+{
+ unsigned long ret;
+
+ alternative_io("movq %[small],%0","movq %[large],%0",
+ X86_FEATURE_LA57,
+ "=r" (ret),
+ [small] "i" ((1ul << 47)-PAGE_SIZE),
+ [large] "i" ((1ul << 56)-PAGE_SIZE));
+
+ return ret;
+}
+#endif /* CONFIG_X86_5LEVEL */
+
+#endif /* !__ASSEMBLY__ */
+
+#ifdef CONFIG_X86_VSYSCALL_EMULATION
+# define __HAVE_ARCH_GATE_AREA 1
+#endif
+
#endif /* _ASM_X86_PAGE_64_H */
diff --git a/arch/x86/include/asm/page_64_types.h b/arch/x86/include/asm/page_64_types.h
index 7639dbf5d223..06ef25411d62 100644
--- a/arch/x86/include/asm/page_64_types.h
+++ b/arch/x86/include/asm/page_64_types.h
@@ -1,75 +1,101 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PAGE_64_DEFS_H
#define _ASM_X86_PAGE_64_DEFS_H
-#define THREAD_ORDER 1
-#define THREAD_SIZE (PAGE_SIZE << THREAD_ORDER)
-#define CURRENT_MASK (~(THREAD_SIZE - 1))
+#ifndef __ASSEMBLY__
+#include <asm/kaslr.h>
+#endif
-#define EXCEPTION_STACK_ORDER 0
-#define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
+#ifdef CONFIG_KASAN
+#define KASAN_STACK_ORDER 1
+#else
+#define KASAN_STACK_ORDER 0
+#endif
-#define DEBUG_STACK_ORDER (EXCEPTION_STACK_ORDER + 1)
-#define DEBUG_STKSZ (PAGE_SIZE << DEBUG_STACK_ORDER)
+#define THREAD_SIZE_ORDER (2 + KASAN_STACK_ORDER)
+#define THREAD_SIZE (PAGE_SIZE << THREAD_SIZE_ORDER)
-#define IRQ_STACK_ORDER 2
-#define IRQ_STACK_SIZE (PAGE_SIZE << IRQ_STACK_ORDER)
+#define EXCEPTION_STACK_ORDER (1 + KASAN_STACK_ORDER)
+#define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
-#define STACKFAULT_STACK 1
-#define DOUBLEFAULT_STACK 2
-#define NMI_STACK 3
-#define DEBUG_STACK 4
-#define MCE_STACK 5
-#define N_EXCEPTION_STACKS 5 /* hw limit: 7 */
+#define IRQ_STACK_ORDER (2 + KASAN_STACK_ORDER)
+#define IRQ_STACK_SIZE (PAGE_SIZE << IRQ_STACK_ORDER)
-#define PUD_PAGE_SIZE (_AC(1, UL) << PUD_SHIFT)
-#define PUD_PAGE_MASK (~(PUD_PAGE_SIZE-1))
+/*
+ * The index for the tss.ist[] array. The hardware limit is 7 entries.
+ */
+#define IST_INDEX_DF 0
+#define IST_INDEX_NMI 1
+#define IST_INDEX_DB 2
+#define IST_INDEX_MCE 3
+#define IST_INDEX_VC 4
/*
* Set __PAGE_OFFSET to the most negative possible address +
- * PGDIR_SIZE*16 (pgd slot 272). The gap is to allow a space for a
- * hypervisor to fit. Choosing 16 slots here is arbitrary, but it's
- * what Xen requires.
+ * PGDIR_SIZE*17 (pgd slot 273).
+ *
+ * The gap is to allow a space for LDT remap for PTI (1 pgd slot) and space for
+ * a hypervisor (16 slots). Choosing 16 slots for a hypervisor is arbitrary,
+ * but it's what Xen requires.
*/
-#define __PAGE_OFFSET _AC(0xffff880000000000, UL)
+#define __PAGE_OFFSET_BASE_L5 _AC(0xff11000000000000, UL)
+#define __PAGE_OFFSET_BASE_L4 _AC(0xffff888000000000, UL)
-#define __PHYSICAL_START ((CONFIG_PHYSICAL_START + \
- (CONFIG_PHYSICAL_ALIGN - 1)) & \
- ~(CONFIG_PHYSICAL_ALIGN - 1))
+#ifdef CONFIG_DYNAMIC_MEMORY_LAYOUT
+#define __PAGE_OFFSET page_offset_base
+#else
+#define __PAGE_OFFSET __PAGE_OFFSET_BASE_L4
+#endif /* CONFIG_DYNAMIC_MEMORY_LAYOUT */
-#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
#define __START_KERNEL_map _AC(0xffffffff80000000, UL)
-/* See Documentation/x86/x86_64/mm.txt for a description of the memory map. */
-#define __PHYSICAL_MASK_SHIFT 46
-#define __VIRTUAL_MASK_SHIFT 47
+/* See Documentation/arch/x86/x86_64/mm.rst for a description of the memory map. */
-/*
- * Kernel image size is limited to 512 MB (see level2_kernel_pgt in
- * arch/x86/kernel/head_64.S), and it is mapped here:
- */
-#define KERNEL_IMAGE_SIZE (512 * 1024 * 1024)
-#define KERNEL_IMAGE_START _AC(0xffffffff80000000, UL)
+#define __PHYSICAL_MASK_SHIFT 52
-#ifndef __ASSEMBLY__
-void clear_page(void *page);
-void copy_page(void *to, void *from);
-
-/* duplicated to the one in bootmem.h */
-extern unsigned long max_pfn;
-extern unsigned long phys_base;
+#ifdef CONFIG_X86_5LEVEL
+#define __VIRTUAL_MASK_SHIFT (pgtable_l5_enabled() ? 56 : 47)
+/* See task_size_max() in <asm/page_64.h> */
+#else
+#define __VIRTUAL_MASK_SHIFT 47
+#define task_size_max() ((_AC(1,UL) << __VIRTUAL_MASK_SHIFT) - PAGE_SIZE)
+#endif
-extern unsigned long __phys_addr(unsigned long);
-#define __phys_reloc_hide(x) (x)
+#define TASK_SIZE_MAX task_size_max()
+#define DEFAULT_MAP_WINDOW ((1UL << 47) - PAGE_SIZE)
-#define vmemmap ((struct page *)VMEMMAP_START)
+/* This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \
+ 0xc0000000 : 0xFFFFe000)
-extern void init_extra_mapping_uc(unsigned long phys, unsigned long size);
-extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);
+#define TASK_SIZE_LOW (test_thread_flag(TIF_ADDR32) ? \
+ IA32_PAGE_OFFSET : DEFAULT_MAP_WINDOW)
+#define TASK_SIZE (test_thread_flag(TIF_ADDR32) ? \
+ IA32_PAGE_OFFSET : TASK_SIZE_MAX)
+#define TASK_SIZE_OF(child) ((test_tsk_thread_flag(child, TIF_ADDR32)) ? \
+ IA32_PAGE_OFFSET : TASK_SIZE_MAX)
-#endif /* !__ASSEMBLY__ */
+#define STACK_TOP TASK_SIZE_LOW
+#define STACK_TOP_MAX TASK_SIZE_MAX
-#ifdef CONFIG_FLATMEM
-#define pfn_valid(pfn) ((pfn) < max_pfn)
+/*
+ * In spite of the name, KERNEL_IMAGE_SIZE is a limit on the maximum virtual
+ * address for the kernel image, rather than the limit on the size itself.
+ * This can be at most 1 GiB, due to the fixmap living in the next 1 GiB (see
+ * level2_kernel_pgt in arch/x86/kernel/head_64.S).
+ *
+ * On KASLR use 1 GiB by default, leaving 1 GiB for modules once the
+ * page tables are fully set up.
+ *
+ * If KASLR is disabled we can shrink it to 0.5 GiB and increase the size
+ * of the modules area to 1.5 GiB.
+ */
+#ifdef CONFIG_RANDOMIZE_BASE
+#define KERNEL_IMAGE_SIZE (1024 * 1024 * 1024)
+#else
+#define KERNEL_IMAGE_SIZE (512 * 1024 * 1024)
#endif
#endif /* _ASM_X86_PAGE_64_DEFS_H */
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
index bce688d54c12..86bd4311daf8 100644
--- a/arch/x86/include/asm/page_types.h
+++ b/arch/x86/include/asm/page_types.h
@@ -1,24 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PAGE_DEFS_H
#define _ASM_X86_PAGE_DEFS_H
#include <linux/const.h>
#include <linux/types.h>
+#include <linux/mem_encrypt.h>
/* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT 12
-#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE-1))
+#define PAGE_SHIFT 12
+#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
+#define PAGE_MASK (~(PAGE_SIZE-1))
-#define __PHYSICAL_MASK ((phys_addr_t)((1ULL << __PHYSICAL_MASK_SHIFT) - 1))
#define __VIRTUAL_MASK ((1UL << __VIRTUAL_MASK_SHIFT) - 1)
-/* Cast PAGE_MASK to a signed type so that it is sign-extended if
+/* Cast P*D_MASK to a signed type so that it is sign-extended if
virtual addresses are 32-bits but physical addresses are larger
(ie, 32-bit PAE). */
#define PHYSICAL_PAGE_MASK (((signed long)PAGE_MASK) & __PHYSICAL_MASK)
-
-#define PMD_PAGE_SIZE (_AC(1, UL) << PMD_SHIFT)
-#define PMD_PAGE_MASK (~(PMD_PAGE_SIZE-1))
+#define PHYSICAL_PMD_PAGE_MASK (((signed long)PMD_MASK) & __PHYSICAL_MASK)
+#define PHYSICAL_PUD_PAGE_MASK (((signed long)PUD_MASK) & __PHYSICAL_MASK)
#define HPAGE_SHIFT PMD_SHIFT
#define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT)
@@ -29,18 +29,30 @@
#define PAGE_OFFSET ((unsigned long)__PAGE_OFFSET)
-#define VM_DATA_DEFAULT_FLAGS \
- (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0 ) | \
- VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+#define VM_DATA_DEFAULT_FLAGS VM_DATA_FLAGS_TSK_EXEC
+
+#define __PHYSICAL_START ALIGN(CONFIG_PHYSICAL_START, \
+ CONFIG_PHYSICAL_ALIGN)
+
+#define __START_KERNEL (__START_KERNEL_map + __PHYSICAL_START)
#ifdef CONFIG_X86_64
#include <asm/page_64_types.h>
+#define IOREMAP_MAX_ORDER (PUD_SHIFT)
#else
#include <asm/page_32_types.h>
+#define IOREMAP_MAX_ORDER (PMD_SHIFT)
#endif /* CONFIG_X86_64 */
#ifndef __ASSEMBLY__
+#ifdef CONFIG_DYNAMIC_PHYSICAL_MASK
+extern phys_addr_t physical_mask;
+#define __PHYSICAL_MASK physical_mask
+#else
+#define __PHYSICAL_MASK ((phys_addr_t)((1ULL << __PHYSICAL_MASK_SHIFT) - 1))
+#endif
+
extern int devmem_is_allowed(unsigned long pagenr);
extern unsigned long max_low_pfn_mapped;
@@ -51,11 +63,9 @@ static inline phys_addr_t get_max_mapped(void)
return (phys_addr_t)max_pfn_mapped << PAGE_SHIFT;
}
-extern unsigned long init_memory_mapping(unsigned long start,
- unsigned long end);
+bool pfn_range_is_mapped(unsigned long start_pfn, unsigned long end_pfn);
extern void initmem_init(void);
-extern void free_initmem(void);
#endif /* !__ASSEMBLY__ */
diff --git a/arch/x86/include/asm/param.h b/arch/x86/include/asm/param.h
deleted file mode 100644
index 965d45427975..000000000000
--- a/arch/x86/include/asm/param.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/param.h>
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index ebbc4d8ab170..b49778664d2b 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -1,152 +1,215 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PARAVIRT_H
#define _ASM_X86_PARAVIRT_H
/* Various instructions on x86 need to be replaced for
* para-virtualization: those hooks are defined here. */
+#include <asm/paravirt_types.h>
+
#ifdef CONFIG_PARAVIRT
#include <asm/pgtable_types.h>
#include <asm/asm.h>
-
-#include <asm/paravirt_types.h>
+#include <asm/nospec-branch.h>
#ifndef __ASSEMBLY__
+#include <linux/bug.h>
#include <linux/types.h>
#include <linux/cpumask.h>
+#include <linux/static_call_types.h>
+#include <asm/frame.h>
+
+u64 dummy_steal_clock(int cpu);
+u64 dummy_sched_clock(void);
+
+DECLARE_STATIC_CALL(pv_steal_clock, dummy_steal_clock);
+DECLARE_STATIC_CALL(pv_sched_clock, dummy_sched_clock);
+
+void paravirt_set_sched_clock(u64 (*func)(void));
-static inline int paravirt_enabled(void)
+static __always_inline u64 paravirt_sched_clock(void)
{
- return pv_info.paravirt_enabled;
+ return static_call(pv_sched_clock)();
}
-static inline void load_sp0(struct tss_struct *tss,
- struct thread_struct *thread)
+struct static_key;
+extern struct static_key paravirt_steal_enabled;
+extern struct static_key paravirt_steal_rq_enabled;
+
+__visible void __native_queued_spin_unlock(struct qspinlock *lock);
+bool pv_is_native_spin_unlock(void);
+__visible bool __native_vcpu_is_preempted(long cpu);
+bool pv_is_native_vcpu_is_preempted(void);
+
+static inline u64 paravirt_steal_clock(int cpu)
{
- PVOP_VCALL2(pv_cpu_ops.load_sp0, tss, thread);
+ return static_call(pv_steal_clock)(cpu);
}
-/* The paravirtualized CPUID instruction. */
-static inline void __cpuid(unsigned int *eax, unsigned int *ebx,
- unsigned int *ecx, unsigned int *edx)
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+void __init paravirt_set_cap(void);
+#endif
+
+/* The paravirtualized I/O functions */
+static inline void slow_down_io(void)
{
- PVOP_VCALL4(pv_cpu_ops.cpuid, eax, ebx, ecx, edx);
+ PVOP_VCALL0(cpu.io_delay);
+#ifdef REALLY_SLOW_IO
+ PVOP_VCALL0(cpu.io_delay);
+ PVOP_VCALL0(cpu.io_delay);
+ PVOP_VCALL0(cpu.io_delay);
+#endif
}
-/*
- * These special macros can be used to get or set a debugging register
- */
-static inline unsigned long paravirt_get_debugreg(int reg)
+void native_flush_tlb_local(void);
+void native_flush_tlb_global(void);
+void native_flush_tlb_one_user(unsigned long addr);
+void native_flush_tlb_multi(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info);
+
+static inline void __flush_tlb_local(void)
{
- return PVOP_CALL1(unsigned long, pv_cpu_ops.get_debugreg, reg);
+ PVOP_VCALL0(mmu.flush_tlb_user);
}
-#define get_debugreg(var, reg) var = paravirt_get_debugreg(reg)
-static inline void set_debugreg(unsigned long val, int reg)
+
+static inline void __flush_tlb_global(void)
{
- PVOP_VCALL2(pv_cpu_ops.set_debugreg, reg, val);
+ PVOP_VCALL0(mmu.flush_tlb_kernel);
}
-static inline void clts(void)
+static inline void __flush_tlb_one_user(unsigned long addr)
{
- PVOP_VCALL0(pv_cpu_ops.clts);
+ PVOP_VCALL1(mmu.flush_tlb_one_user, addr);
}
-static inline unsigned long read_cr0(void)
+static inline void __flush_tlb_multi(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info)
{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr0);
+ PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
}
-static inline void write_cr0(unsigned long x)
+static inline void paravirt_tlb_remove_table(struct mmu_gather *tlb, void *table)
{
- PVOP_VCALL1(pv_cpu_ops.write_cr0, x);
+ PVOP_VCALL2(mmu.tlb_remove_table, tlb, table);
}
-static inline unsigned long read_cr2(void)
+static inline void paravirt_arch_exit_mmap(struct mm_struct *mm)
{
- return PVOP_CALL0(unsigned long, pv_mmu_ops.read_cr2);
+ PVOP_VCALL1(mmu.exit_mmap, mm);
}
-static inline void write_cr2(unsigned long x)
+static inline void notify_page_enc_status_changed(unsigned long pfn,
+ int npages, bool enc)
{
- PVOP_VCALL1(pv_mmu_ops.write_cr2, x);
+ PVOP_VCALL3(mmu.notify_page_enc_status_changed, pfn, npages, enc);
}
-static inline unsigned long read_cr3(void)
+#ifdef CONFIG_PARAVIRT_XXL
+static inline void load_sp0(unsigned long sp0)
{
- return PVOP_CALL0(unsigned long, pv_mmu_ops.read_cr3);
+ PVOP_VCALL1(cpu.load_sp0, sp0);
}
-static inline void write_cr3(unsigned long x)
+/* The paravirtualized CPUID instruction. */
+static inline void __cpuid(unsigned int *eax, unsigned int *ebx,
+ unsigned int *ecx, unsigned int *edx)
{
- PVOP_VCALL1(pv_mmu_ops.write_cr3, x);
+ PVOP_VCALL4(cpu.cpuid, eax, ebx, ecx, edx);
}
-static inline unsigned long read_cr4(void)
+/*
+ * These special macros can be used to get or set a debugging register
+ */
+static __always_inline unsigned long paravirt_get_debugreg(int reg)
{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr4);
+ return PVOP_CALL1(unsigned long, cpu.get_debugreg, reg);
}
-static inline unsigned long read_cr4_safe(void)
+#define get_debugreg(var, reg) var = paravirt_get_debugreg(reg)
+static __always_inline void set_debugreg(unsigned long val, int reg)
{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr4_safe);
+ PVOP_VCALL2(cpu.set_debugreg, reg, val);
}
-static inline void write_cr4(unsigned long x)
+static inline unsigned long read_cr0(void)
{
- PVOP_VCALL1(pv_cpu_ops.write_cr4, x);
+ return PVOP_CALL0(unsigned long, cpu.read_cr0);
}
-#ifdef CONFIG_X86_64
-static inline unsigned long read_cr8(void)
+static inline void write_cr0(unsigned long x)
{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.read_cr8);
+ PVOP_VCALL1(cpu.write_cr0, x);
}
-static inline void write_cr8(unsigned long x)
+static __always_inline unsigned long read_cr2(void)
{
- PVOP_VCALL1(pv_cpu_ops.write_cr8, x);
+ return PVOP_ALT_CALLEE0(unsigned long, mmu.read_cr2,
+ "mov %%cr2, %%rax;",
+ ALT_NOT(X86_FEATURE_XENPV));
}
-#endif
-static inline void arch_safe_halt(void)
+static __always_inline void write_cr2(unsigned long x)
{
- PVOP_VCALL0(pv_irq_ops.safe_halt);
+ PVOP_VCALL1(mmu.write_cr2, x);
}
-static inline void halt(void)
+static inline unsigned long __read_cr3(void)
{
- PVOP_VCALL0(pv_irq_ops.halt);
+ return PVOP_ALT_CALL0(unsigned long, mmu.read_cr3,
+ "mov %%cr3, %%rax;", ALT_NOT(X86_FEATURE_XENPV));
}
-static inline void wbinvd(void)
+static inline void write_cr3(unsigned long x)
{
- PVOP_VCALL0(pv_cpu_ops.wbinvd);
+ PVOP_ALT_VCALL1(mmu.write_cr3, x,
+ "mov %%rdi, %%cr3", ALT_NOT(X86_FEATURE_XENPV));
}
-#define get_kernel_rpl() (pv_info.kernel_rpl)
+static inline void __write_cr4(unsigned long x)
+{
+ PVOP_VCALL1(cpu.write_cr4, x);
+}
+
+static __always_inline void arch_safe_halt(void)
+{
+ PVOP_VCALL0(irq.safe_halt);
+}
+
+static inline void halt(void)
+{
+ PVOP_VCALL0(irq.halt);
+}
+
+extern noinstr void pv_native_wbinvd(void);
+
+static __always_inline void wbinvd(void)
+{
+ PVOP_ALT_VCALL0(cpu.wbinvd, "wbinvd", ALT_NOT(X86_FEATURE_XENPV));
+}
-static inline u64 paravirt_read_msr(unsigned msr, int *err)
+static inline u64 paravirt_read_msr(unsigned msr)
{
- return PVOP_CALL2(u64, pv_cpu_ops.read_msr, msr, err);
+ return PVOP_CALL1(u64, cpu.read_msr, msr);
}
-static inline int paravirt_rdmsr_regs(u32 *regs)
+static inline void paravirt_write_msr(unsigned msr,
+ unsigned low, unsigned high)
{
- return PVOP_CALL1(int, pv_cpu_ops.rdmsr_regs, regs);
+ PVOP_VCALL3(cpu.write_msr, msr, low, high);
}
-static inline int paravirt_write_msr(unsigned msr, unsigned low, unsigned high)
+static inline u64 paravirt_read_msr_safe(unsigned msr, int *err)
{
- return PVOP_CALL3(int, pv_cpu_ops.write_msr, msr, low, high);
+ return PVOP_CALL2(u64, cpu.read_msr_safe, msr, err);
}
-static inline int paravirt_wrmsr_regs(u32 *regs)
+static inline int paravirt_write_msr_safe(unsigned msr,
+ unsigned low, unsigned high)
{
- return PVOP_CALL1(int, pv_cpu_ops.wrmsr_regs, regs);
+ return PVOP_CALL3(int, cpu.write_msr_safe, msr, low, high);
}
-/* These should all do BUG_ON(_err), but our headers are too tangled. */
#define rdmsr(msr, val1, val2) \
do { \
- int _err; \
- u64 _l = paravirt_read_msr(msr, &_err); \
+ u64 _l = paravirt_read_msr(msr); \
val1 = (u32)_l; \
val2 = _l >> 32; \
} while (0)
@@ -158,81 +221,37 @@ do { \
#define rdmsrl(msr, val) \
do { \
- int _err; \
- val = paravirt_read_msr(msr, &_err); \
+ val = paravirt_read_msr(msr); \
} while (0)
-#define wrmsrl(msr, val) wrmsr(msr, (u32)((u64)(val)), ((u64)(val))>>32)
-#define wrmsr_safe(msr, a, b) paravirt_write_msr(msr, a, b)
+static inline void wrmsrl(unsigned msr, u64 val)
+{
+ wrmsr(msr, (u32)val, (u32)(val>>32));
+}
+
+#define wrmsr_safe(msr, a, b) paravirt_write_msr_safe(msr, a, b)
/* rdmsr with exception handling */
-#define rdmsr_safe(msr, a, b) \
-({ \
- int _err; \
- u64 _l = paravirt_read_msr(msr, &_err); \
- (*a) = (u32)_l; \
- (*b) = _l >> 32; \
- _err; \
+#define rdmsr_safe(msr, a, b) \
+({ \
+ int _err; \
+ u64 _l = paravirt_read_msr_safe(msr, &_err); \
+ (*a) = (u32)_l; \
+ (*b) = _l >> 32; \
+ _err; \
})
-#define rdmsr_safe_regs(regs) paravirt_rdmsr_regs(regs)
-#define wrmsr_safe_regs(regs) paravirt_wrmsr_regs(regs)
-
static inline int rdmsrl_safe(unsigned msr, unsigned long long *p)
{
int err;
- *p = paravirt_read_msr(msr, &err);
- return err;
-}
-static inline int rdmsrl_amd_safe(unsigned msr, unsigned long long *p)
-{
- u32 gprs[8] = { 0 };
- int err;
-
- gprs[1] = msr;
- gprs[7] = 0x9c5a203a;
-
- err = paravirt_rdmsr_regs(gprs);
-
- *p = gprs[0] | ((u64)gprs[2] << 32);
-
+ *p = paravirt_read_msr_safe(msr, &err);
return err;
}
-static inline int wrmsrl_amd_safe(unsigned msr, unsigned long long val)
-{
- u32 gprs[8] = { 0 };
-
- gprs[0] = (u32)val;
- gprs[1] = msr;
- gprs[2] = val >> 32;
- gprs[7] = 0x9c5a203a;
-
- return paravirt_wrmsr_regs(gprs);
-}
-
-static inline u64 paravirt_read_tsc(void)
-{
- return PVOP_CALL0(u64, pv_cpu_ops.read_tsc);
-}
-
-#define rdtscl(low) \
-do { \
- u64 _l = paravirt_read_tsc(); \
- low = (int)_l; \
-} while (0)
-
-#define rdtscll(val) (val = paravirt_read_tsc())
-
-static inline unsigned long long paravirt_sched_clock(void)
-{
- return PVOP_CALL0(unsigned long long, pv_time_ops.sched_clock);
-}
-
static inline unsigned long long paravirt_read_pmc(int counter)
{
- return PVOP_CALL1(u64, pv_cpu_ops.read_pmc, counter);
+ return PVOP_CALL1(u64, cpu.read_pmc, counter);
}
#define rdpmc(counter, low, high) \
@@ -242,456 +261,273 @@ do { \
high = _l >> 32; \
} while (0)
-static inline unsigned long long paravirt_rdtscp(unsigned int *aux)
-{
- return PVOP_CALL1(u64, pv_cpu_ops.read_tscp, aux);
-}
-
-#define rdtscp(low, high, aux) \
-do { \
- int __aux; \
- unsigned long __val = paravirt_rdtscp(&__aux); \
- (low) = (u32)__val; \
- (high) = (u32)(__val >> 32); \
- (aux) = __aux; \
-} while (0)
-
-#define rdtscpll(val, aux) \
-do { \
- unsigned long __aux; \
- val = paravirt_rdtscp(&__aux); \
- (aux) = __aux; \
-} while (0)
+#define rdpmcl(counter, val) ((val) = paravirt_read_pmc(counter))
static inline void paravirt_alloc_ldt(struct desc_struct *ldt, unsigned entries)
{
- PVOP_VCALL2(pv_cpu_ops.alloc_ldt, ldt, entries);
+ PVOP_VCALL2(cpu.alloc_ldt, ldt, entries);
}
static inline void paravirt_free_ldt(struct desc_struct *ldt, unsigned entries)
{
- PVOP_VCALL2(pv_cpu_ops.free_ldt, ldt, entries);
+ PVOP_VCALL2(cpu.free_ldt, ldt, entries);
}
static inline void load_TR_desc(void)
{
- PVOP_VCALL0(pv_cpu_ops.load_tr_desc);
+ PVOP_VCALL0(cpu.load_tr_desc);
}
static inline void load_gdt(const struct desc_ptr *dtr)
{
- PVOP_VCALL1(pv_cpu_ops.load_gdt, dtr);
+ PVOP_VCALL1(cpu.load_gdt, dtr);
}
static inline void load_idt(const struct desc_ptr *dtr)
{
- PVOP_VCALL1(pv_cpu_ops.load_idt, dtr);
+ PVOP_VCALL1(cpu.load_idt, dtr);
}
static inline void set_ldt(const void *addr, unsigned entries)
{
- PVOP_VCALL2(pv_cpu_ops.set_ldt, addr, entries);
-}
-static inline void store_gdt(struct desc_ptr *dtr)
-{
- PVOP_VCALL1(pv_cpu_ops.store_gdt, dtr);
-}
-static inline void store_idt(struct desc_ptr *dtr)
-{
- PVOP_VCALL1(pv_cpu_ops.store_idt, dtr);
+ PVOP_VCALL2(cpu.set_ldt, addr, entries);
}
static inline unsigned long paravirt_store_tr(void)
{
- return PVOP_CALL0(unsigned long, pv_cpu_ops.store_tr);
+ return PVOP_CALL0(unsigned long, cpu.store_tr);
}
+
#define store_tr(tr) ((tr) = paravirt_store_tr())
static inline void load_TLS(struct thread_struct *t, unsigned cpu)
{
- PVOP_VCALL2(pv_cpu_ops.load_tls, t, cpu);
+ PVOP_VCALL2(cpu.load_tls, t, cpu);
}
-#ifdef CONFIG_X86_64
static inline void load_gs_index(unsigned int gs)
{
- PVOP_VCALL1(pv_cpu_ops.load_gs_index, gs);
+ PVOP_VCALL1(cpu.load_gs_index, gs);
}
-#endif
static inline void write_ldt_entry(struct desc_struct *dt, int entry,
const void *desc)
{
- PVOP_VCALL3(pv_cpu_ops.write_ldt_entry, dt, entry, desc);
+ PVOP_VCALL3(cpu.write_ldt_entry, dt, entry, desc);
}
static inline void write_gdt_entry(struct desc_struct *dt, int entry,
void *desc, int type)
{
- PVOP_VCALL4(pv_cpu_ops.write_gdt_entry, dt, entry, desc, type);
+ PVOP_VCALL4(cpu.write_gdt_entry, dt, entry, desc, type);
}
static inline void write_idt_entry(gate_desc *dt, int entry, const gate_desc *g)
{
- PVOP_VCALL3(pv_cpu_ops.write_idt_entry, dt, entry, g);
-}
-static inline void set_iopl_mask(unsigned mask)
-{
- PVOP_VCALL1(pv_cpu_ops.set_iopl_mask, mask);
+ PVOP_VCALL3(cpu.write_idt_entry, dt, entry, g);
}
-/* The paravirtualized I/O functions */
-static inline void slow_down_io(void)
+#ifdef CONFIG_X86_IOPL_IOPERM
+static inline void tss_invalidate_io_bitmap(void)
{
- pv_cpu_ops.io_delay();
-#ifdef REALLY_SLOW_IO
- pv_cpu_ops.io_delay();
- pv_cpu_ops.io_delay();
- pv_cpu_ops.io_delay();
-#endif
+ PVOP_VCALL0(cpu.invalidate_io_bitmap);
}
-#ifdef CONFIG_SMP
-static inline void startup_ipi_hook(int phys_apicid, unsigned long start_eip,
- unsigned long start_esp)
+static inline void tss_update_io_bitmap(void)
{
- PVOP_VCALL3(pv_apic_ops.startup_ipi_hook,
- phys_apicid, start_eip, start_esp);
+ PVOP_VCALL0(cpu.update_io_bitmap);
}
#endif
-static inline void paravirt_activate_mm(struct mm_struct *prev,
- struct mm_struct *next)
+static inline void paravirt_enter_mmap(struct mm_struct *next)
{
- PVOP_VCALL2(pv_mmu_ops.activate_mm, prev, next);
-}
-
-static inline void arch_dup_mmap(struct mm_struct *oldmm,
- struct mm_struct *mm)
-{
- PVOP_VCALL2(pv_mmu_ops.dup_mmap, oldmm, mm);
-}
-
-static inline void arch_exit_mmap(struct mm_struct *mm)
-{
- PVOP_VCALL1(pv_mmu_ops.exit_mmap, mm);
-}
-
-static inline void __flush_tlb(void)
-{
- PVOP_VCALL0(pv_mmu_ops.flush_tlb_user);
-}
-static inline void __flush_tlb_global(void)
-{
- PVOP_VCALL0(pv_mmu_ops.flush_tlb_kernel);
-}
-static inline void __flush_tlb_single(unsigned long addr)
-{
- PVOP_VCALL1(pv_mmu_ops.flush_tlb_single, addr);
-}
-
-static inline void flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm,
- unsigned long va)
-{
- PVOP_VCALL3(pv_mmu_ops.flush_tlb_others, cpumask, mm, va);
+ PVOP_VCALL1(mmu.enter_mmap, next);
}
static inline int paravirt_pgd_alloc(struct mm_struct *mm)
{
- return PVOP_CALL1(int, pv_mmu_ops.pgd_alloc, mm);
+ return PVOP_CALL1(int, mmu.pgd_alloc, mm);
}
static inline void paravirt_pgd_free(struct mm_struct *mm, pgd_t *pgd)
{
- PVOP_VCALL2(pv_mmu_ops.pgd_free, mm, pgd);
+ PVOP_VCALL2(mmu.pgd_free, mm, pgd);
}
static inline void paravirt_alloc_pte(struct mm_struct *mm, unsigned long pfn)
{
- PVOP_VCALL2(pv_mmu_ops.alloc_pte, mm, pfn);
+ PVOP_VCALL2(mmu.alloc_pte, mm, pfn);
}
static inline void paravirt_release_pte(unsigned long pfn)
{
- PVOP_VCALL1(pv_mmu_ops.release_pte, pfn);
+ PVOP_VCALL1(mmu.release_pte, pfn);
}
static inline void paravirt_alloc_pmd(struct mm_struct *mm, unsigned long pfn)
{
- PVOP_VCALL2(pv_mmu_ops.alloc_pmd, mm, pfn);
+ PVOP_VCALL2(mmu.alloc_pmd, mm, pfn);
}
static inline void paravirt_release_pmd(unsigned long pfn)
{
- PVOP_VCALL1(pv_mmu_ops.release_pmd, pfn);
+ PVOP_VCALL1(mmu.release_pmd, pfn);
}
static inline void paravirt_alloc_pud(struct mm_struct *mm, unsigned long pfn)
{
- PVOP_VCALL2(pv_mmu_ops.alloc_pud, mm, pfn);
+ PVOP_VCALL2(mmu.alloc_pud, mm, pfn);
}
static inline void paravirt_release_pud(unsigned long pfn)
{
- PVOP_VCALL1(pv_mmu_ops.release_pud, pfn);
+ PVOP_VCALL1(mmu.release_pud, pfn);
}
-static inline void pte_update(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
+static inline void paravirt_alloc_p4d(struct mm_struct *mm, unsigned long pfn)
{
- PVOP_VCALL3(pv_mmu_ops.pte_update, mm, addr, ptep);
-}
-static inline void pmd_update(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp)
-{
- PVOP_VCALL3(pv_mmu_ops.pmd_update, mm, addr, pmdp);
+ PVOP_VCALL2(mmu.alloc_p4d, mm, pfn);
}
-static inline void pte_update_defer(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
+static inline void paravirt_release_p4d(unsigned long pfn)
{
- PVOP_VCALL3(pv_mmu_ops.pte_update_defer, mm, addr, ptep);
-}
-
-static inline void pmd_update_defer(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp)
-{
- PVOP_VCALL3(pv_mmu_ops.pmd_update_defer, mm, addr, pmdp);
+ PVOP_VCALL1(mmu.release_p4d, pfn);
}
static inline pte_t __pte(pteval_t val)
{
- pteval_t ret;
-
- if (sizeof(pteval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pteval_t,
- pv_mmu_ops.make_pte,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pteval_t,
- pv_mmu_ops.make_pte,
- val);
-
- return (pte_t) { .pte = ret };
+ return (pte_t) { PVOP_ALT_CALLEE1(pteval_t, mmu.make_pte, val,
+ "mov %%rdi, %%rax",
+ ALT_NOT(X86_FEATURE_XENPV)) };
}
static inline pteval_t pte_val(pte_t pte)
{
- pteval_t ret;
-
- if (sizeof(pteval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pteval_t, pv_mmu_ops.pte_val,
- pte.pte, (u64)pte.pte >> 32);
- else
- ret = PVOP_CALLEE1(pteval_t, pv_mmu_ops.pte_val,
- pte.pte);
-
- return ret;
+ return PVOP_ALT_CALLEE1(pteval_t, mmu.pte_val, pte.pte,
+ "mov %%rdi, %%rax", ALT_NOT(X86_FEATURE_XENPV));
}
static inline pgd_t __pgd(pgdval_t val)
{
- pgdval_t ret;
-
- if (sizeof(pgdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pgdval_t, pv_mmu_ops.make_pgd,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pgdval_t, pv_mmu_ops.make_pgd,
- val);
-
- return (pgd_t) { ret };
+ return (pgd_t) { PVOP_ALT_CALLEE1(pgdval_t, mmu.make_pgd, val,
+ "mov %%rdi, %%rax",
+ ALT_NOT(X86_FEATURE_XENPV)) };
}
static inline pgdval_t pgd_val(pgd_t pgd)
{
- pgdval_t ret;
-
- if (sizeof(pgdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pgdval_t, pv_mmu_ops.pgd_val,
- pgd.pgd, (u64)pgd.pgd >> 32);
- else
- ret = PVOP_CALLEE1(pgdval_t, pv_mmu_ops.pgd_val,
- pgd.pgd);
-
- return ret;
+ return PVOP_ALT_CALLEE1(pgdval_t, mmu.pgd_val, pgd.pgd,
+ "mov %%rdi, %%rax", ALT_NOT(X86_FEATURE_XENPV));
}
#define __HAVE_ARCH_PTEP_MODIFY_PROT_TRANSACTION
-static inline pte_t ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr,
+static inline pte_t ptep_modify_prot_start(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep)
{
pteval_t ret;
- ret = PVOP_CALL3(pteval_t, pv_mmu_ops.ptep_modify_prot_start,
- mm, addr, ptep);
+ ret = PVOP_CALL3(pteval_t, mmu.ptep_modify_prot_start, vma, addr, ptep);
return (pte_t) { .pte = ret };
}
-static inline void ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
+static inline void ptep_modify_prot_commit(struct vm_area_struct *vma, unsigned long addr,
+ pte_t *ptep, pte_t old_pte, pte_t pte)
{
- if (sizeof(pteval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.ptep_modify_prot_commit(mm, addr, ptep, pte);
- else
- PVOP_VCALL4(pv_mmu_ops.ptep_modify_prot_commit,
- mm, addr, ptep, pte.pte);
-}
-static inline void set_pte(pte_t *ptep, pte_t pte)
-{
- if (sizeof(pteval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pte, ptep,
- pte.pte, (u64)pte.pte >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pte, ptep,
- pte.pte);
+ PVOP_VCALL4(mmu.ptep_modify_prot_commit, vma, addr, ptep, pte.pte);
}
-static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pte)
-{
- if (sizeof(pteval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.set_pte_at(mm, addr, ptep, pte);
- else
- PVOP_VCALL4(pv_mmu_ops.set_pte_at, mm, addr, ptep, pte.pte);
-}
-
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp, pmd_t pmd)
+static inline void set_pte(pte_t *ptep, pte_t pte)
{
- if (sizeof(pmdval_t) > sizeof(long))
- /* 5 arg words */
- pv_mmu_ops.set_pmd_at(mm, addr, pmdp, pmd);
- else
- PVOP_VCALL4(pv_mmu_ops.set_pmd_at, mm, addr, pmdp,
- native_pmd_val(pmd));
+ PVOP_VCALL2(mmu.set_pte, ptep, pte.pte);
}
-#endif
static inline void set_pmd(pmd_t *pmdp, pmd_t pmd)
{
- pmdval_t val = native_pmd_val(pmd);
-
- if (sizeof(pmdval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pmd, pmdp, val, (u64)val >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pmd, pmdp, val);
+ PVOP_VCALL2(mmu.set_pmd, pmdp, native_pmd_val(pmd));
}
-#if PAGETABLE_LEVELS >= 3
static inline pmd_t __pmd(pmdval_t val)
{
- pmdval_t ret;
-
- if (sizeof(pmdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pmdval_t, pv_mmu_ops.make_pmd,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pmdval_t, pv_mmu_ops.make_pmd,
- val);
-
- return (pmd_t) { ret };
+ return (pmd_t) { PVOP_ALT_CALLEE1(pmdval_t, mmu.make_pmd, val,
+ "mov %%rdi, %%rax",
+ ALT_NOT(X86_FEATURE_XENPV)) };
}
static inline pmdval_t pmd_val(pmd_t pmd)
{
- pmdval_t ret;
-
- if (sizeof(pmdval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pmdval_t, pv_mmu_ops.pmd_val,
- pmd.pmd, (u64)pmd.pmd >> 32);
- else
- ret = PVOP_CALLEE1(pmdval_t, pv_mmu_ops.pmd_val,
- pmd.pmd);
-
- return ret;
+ return PVOP_ALT_CALLEE1(pmdval_t, mmu.pmd_val, pmd.pmd,
+ "mov %%rdi, %%rax", ALT_NOT(X86_FEATURE_XENPV));
}
static inline void set_pud(pud_t *pudp, pud_t pud)
{
- pudval_t val = native_pud_val(pud);
-
- if (sizeof(pudval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pud, pudp,
- val, (u64)val >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pud, pudp,
- val);
+ PVOP_VCALL2(mmu.set_pud, pudp, native_pud_val(pud));
}
-#if PAGETABLE_LEVELS == 4
+
static inline pud_t __pud(pudval_t val)
{
pudval_t ret;
- if (sizeof(pudval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pudval_t, pv_mmu_ops.make_pud,
- val, (u64)val >> 32);
- else
- ret = PVOP_CALLEE1(pudval_t, pv_mmu_ops.make_pud,
- val);
+ ret = PVOP_ALT_CALLEE1(pudval_t, mmu.make_pud, val,
+ "mov %%rdi, %%rax", ALT_NOT(X86_FEATURE_XENPV));
return (pud_t) { ret };
}
static inline pudval_t pud_val(pud_t pud)
{
- pudval_t ret;
+ return PVOP_ALT_CALLEE1(pudval_t, mmu.pud_val, pud.pud,
+ "mov %%rdi, %%rax", ALT_NOT(X86_FEATURE_XENPV));
+}
- if (sizeof(pudval_t) > sizeof(long))
- ret = PVOP_CALLEE2(pudval_t, pv_mmu_ops.pud_val,
- pud.pud, (u64)pud.pud >> 32);
- else
- ret = PVOP_CALLEE1(pudval_t, pv_mmu_ops.pud_val,
- pud.pud);
+static inline void pud_clear(pud_t *pudp)
+{
+ set_pud(pudp, native_make_pud(0));
+}
- return ret;
+static inline void set_p4d(p4d_t *p4dp, p4d_t p4d)
+{
+ p4dval_t val = native_p4d_val(p4d);
+
+ PVOP_VCALL2(mmu.set_p4d, p4dp, val);
}
-static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
+#if CONFIG_PGTABLE_LEVELS >= 5
+
+static inline p4d_t __p4d(p4dval_t val)
{
- pgdval_t val = native_pgd_val(pgd);
+ p4dval_t ret = PVOP_ALT_CALLEE1(p4dval_t, mmu.make_p4d, val,
+ "mov %%rdi, %%rax",
+ ALT_NOT(X86_FEATURE_XENPV));
- if (sizeof(pgdval_t) > sizeof(long))
- PVOP_VCALL3(pv_mmu_ops.set_pgd, pgdp,
- val, (u64)val >> 32);
- else
- PVOP_VCALL2(pv_mmu_ops.set_pgd, pgdp,
- val);
+ return (p4d_t) { ret };
}
-static inline void pgd_clear(pgd_t *pgdp)
+static inline p4dval_t p4d_val(p4d_t p4d)
{
- set_pgd(pgdp, __pgd(0));
+ return PVOP_ALT_CALLEE1(p4dval_t, mmu.p4d_val, p4d.p4d,
+ "mov %%rdi, %%rax", ALT_NOT(X86_FEATURE_XENPV));
}
-static inline void pud_clear(pud_t *pudp)
+static inline void __set_pgd(pgd_t *pgdp, pgd_t pgd)
{
- set_pud(pudp, __pud(0));
+ PVOP_VCALL2(mmu.set_pgd, pgdp, native_pgd_val(pgd));
}
-#endif /* PAGETABLE_LEVELS == 4 */
+#define set_pgd(pgdp, pgdval) do { \
+ if (pgtable_l5_enabled()) \
+ __set_pgd(pgdp, pgdval); \
+ else \
+ set_p4d((p4d_t *)(pgdp), (p4d_t) { (pgdval).pgd }); \
+} while (0)
-#endif /* PAGETABLE_LEVELS >= 3 */
+#define pgd_clear(pgdp) do { \
+ if (pgtable_l5_enabled()) \
+ set_pgd(pgdp, native_make_pgd(0)); \
+} while (0)
-#ifdef CONFIG_X86_PAE
-/* Special-case pte-setting operations for PAE, which can't update a
- 64-bit pte atomically */
-static inline void set_pte_atomic(pte_t *ptep, pte_t pte)
-{
- PVOP_VCALL3(pv_mmu_ops.set_pte_atomic, ptep,
- pte.pte, pte.pte >> 32);
-}
+#endif /* CONFIG_PGTABLE_LEVELS == 5 */
-static inline void pte_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
+static inline void p4d_clear(p4d_t *p4dp)
{
- PVOP_VCALL3(pv_mmu_ops.pte_clear, mm, addr, ptep);
+ set_p4d(p4dp, native_make_p4d(0));
}
-static inline void pmd_clear(pmd_t *pmdp)
-{
- PVOP_VCALL1(pv_mmu_ops.pmd_clear, pmdp);
-}
-#else /* !CONFIG_X86_PAE */
static inline void set_pte_atomic(pte_t *ptep, pte_t pte)
{
set_pte(ptep, pte);
@@ -700,92 +536,89 @@ static inline void set_pte_atomic(pte_t *ptep, pte_t pte)
static inline void pte_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
- set_pte_at(mm, addr, ptep, __pte(0));
+ set_pte(ptep, native_make_pte(0));
}
static inline void pmd_clear(pmd_t *pmdp)
{
- set_pmd(pmdp, __pmd(0));
+ set_pmd(pmdp, native_make_pmd(0));
}
-#endif /* CONFIG_X86_PAE */
#define __HAVE_ARCH_START_CONTEXT_SWITCH
static inline void arch_start_context_switch(struct task_struct *prev)
{
- PVOP_VCALL1(pv_cpu_ops.start_context_switch, prev);
+ PVOP_VCALL1(cpu.start_context_switch, prev);
}
static inline void arch_end_context_switch(struct task_struct *next)
{
- PVOP_VCALL1(pv_cpu_ops.end_context_switch, next);
+ PVOP_VCALL1(cpu.end_context_switch, next);
}
#define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
static inline void arch_enter_lazy_mmu_mode(void)
{
- PVOP_VCALL0(pv_mmu_ops.lazy_mode.enter);
+ PVOP_VCALL0(mmu.lazy_mode.enter);
}
static inline void arch_leave_lazy_mmu_mode(void)
{
- PVOP_VCALL0(pv_mmu_ops.lazy_mode.leave);
+ PVOP_VCALL0(mmu.lazy_mode.leave);
}
-void arch_flush_lazy_mmu_mode(void);
+static inline void arch_flush_lazy_mmu_mode(void)
+{
+ PVOP_VCALL0(mmu.lazy_mode.flush);
+}
static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
phys_addr_t phys, pgprot_t flags)
{
- pv_mmu_ops.set_fixmap(idx, phys, flags);
+ pv_ops.mmu.set_fixmap(idx, phys, flags);
}
+#endif
#if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS)
-static inline int arch_spin_is_locked(struct arch_spinlock *lock)
+static __always_inline void pv_queued_spin_lock_slowpath(struct qspinlock *lock,
+ u32 val)
{
- return PVOP_CALL1(int, pv_lock_ops.spin_is_locked, lock);
+ PVOP_VCALL2(lock.queued_spin_lock_slowpath, lock, val);
}
-static inline int arch_spin_is_contended(struct arch_spinlock *lock)
+static __always_inline void pv_queued_spin_unlock(struct qspinlock *lock)
{
- return PVOP_CALL1(int, pv_lock_ops.spin_is_contended, lock);
+ PVOP_ALT_VCALLEE1(lock.queued_spin_unlock, lock,
+ "movb $0, (%%" _ASM_ARG1 ");",
+ ALT_NOT(X86_FEATURE_PVUNLOCK));
}
-#define arch_spin_is_contended arch_spin_is_contended
-static __always_inline void arch_spin_lock(struct arch_spinlock *lock)
+static __always_inline void pv_wait(u8 *ptr, u8 val)
{
- PVOP_VCALL1(pv_lock_ops.spin_lock, lock);
+ PVOP_VCALL2(lock.wait, ptr, val);
}
-static __always_inline void arch_spin_lock_flags(struct arch_spinlock *lock,
- unsigned long flags)
+static __always_inline void pv_kick(int cpu)
{
- PVOP_VCALL2(pv_lock_ops.spin_lock_flags, lock, flags);
+ PVOP_VCALL1(lock.kick, cpu);
}
-static __always_inline int arch_spin_trylock(struct arch_spinlock *lock)
+static __always_inline bool pv_vcpu_is_preempted(long cpu)
{
- return PVOP_CALL1(int, pv_lock_ops.spin_trylock, lock);
+ return PVOP_ALT_CALLEE1(bool, lock.vcpu_is_preempted, cpu,
+ "xor %%" _ASM_AX ", %%" _ASM_AX ";",
+ ALT_NOT(X86_FEATURE_VCPUPREEMPT));
}
-static __always_inline void arch_spin_unlock(struct arch_spinlock *lock)
-{
- PVOP_VCALL1(pv_lock_ops.spin_unlock, lock);
-}
+void __raw_callee_save___native_queued_spin_unlock(struct qspinlock *lock);
+bool __raw_callee_save___native_vcpu_is_preempted(long cpu);
-#endif
+#endif /* SMP && PARAVIRT_SPINLOCKS */
#ifdef CONFIG_X86_32
-#define PV_SAVE_REGS "pushl %ecx; pushl %edx;"
-#define PV_RESTORE_REGS "popl %edx; popl %ecx;"
-
/* save and restore all caller-save registers, except return value */
#define PV_SAVE_ALL_CALLER_REGS "pushl %ecx;"
#define PV_RESTORE_ALL_CALLER_REGS "popl %ecx;"
-
-#define PV_FLAGS_ARG "0"
-#define PV_EXTRA_CLOBBERS
-#define PV_VEXTRA_CLOBBERS
#else
/* save and restore all caller-save registers, except return value */
#define PV_SAVE_ALL_CALLER_REGS \
@@ -806,14 +639,6 @@ static __always_inline void arch_spin_unlock(struct arch_spinlock *lock)
"pop %rsi;" \
"pop %rdx;" \
"pop %rcx;"
-
-/* We save some registers, but all of them, that's too much. We clobber all
- * caller saved registers but the argument parameter */
-#define PV_SAVE_REGS "pushq %%rdi;"
-#define PV_RESTORE_REGS "popq %%rdi;"
-#define PV_EXTRA_CLOBBERS EXTRA_CLOBBERS, "rcx" , "rdx", "rsi"
-#define PV_VEXTRA_CLOBBERS EXTRA_CLOBBERS, "rdi", "rcx" , "rdx", "rsi"
-#define PV_FLAGS_ARG "D"
#endif
/*
@@ -828,18 +653,28 @@ static __always_inline void arch_spin_unlock(struct arch_spinlock *lock)
* call. The return value in rax/eax will not be saved, even for void
* functions.
*/
-#define PV_CALLEE_SAVE_REGS_THUNK(func) \
+#define PV_THUNK_NAME(func) "__raw_callee_save_" #func
+#define __PV_CALLEE_SAVE_REGS_THUNK(func, section) \
extern typeof(func) __raw_callee_save_##func; \
- static void *__##func##__ __used = func; \
\
- asm(".pushsection .text;" \
- "__raw_callee_save_" #func ": " \
+ asm(".pushsection " section ", \"ax\";" \
+ ".globl " PV_THUNK_NAME(func) ";" \
+ ".type " PV_THUNK_NAME(func) ", @function;" \
+ ASM_FUNC_ALIGN \
+ PV_THUNK_NAME(func) ":" \
+ ASM_ENDBR \
+ FRAME_BEGIN \
PV_SAVE_ALL_CALLER_REGS \
"call " #func ";" \
PV_RESTORE_ALL_CALLER_REGS \
- "ret;" \
+ FRAME_END \
+ ASM_RET \
+ ".size " PV_THUNK_NAME(func) ", .-" PV_THUNK_NAME(func) ";" \
".popsection")
+#define PV_CALLEE_SAVE_REGS_THUNK(func) \
+ __PV_CALLEE_SAVE_REGS_THUNK(func, ".text")
+
/* Get a reference to a callee-save function */
#define PV_CALLEE_SAVE(func) \
((struct paravirt_callee_save) { __raw_callee_save_##func })
@@ -848,27 +683,24 @@ static __always_inline void arch_spin_unlock(struct arch_spinlock *lock)
#define __PV_IS_CALLEE_SAVE(func) \
((struct paravirt_callee_save) { func })
-static inline notrace unsigned long arch_local_save_flags(void)
+#ifdef CONFIG_PARAVIRT_XXL
+static __always_inline unsigned long arch_local_save_flags(void)
{
- return PVOP_CALLEE0(unsigned long, pv_irq_ops.save_fl);
+ return PVOP_ALT_CALLEE0(unsigned long, irq.save_fl, "pushf; pop %%rax;",
+ ALT_NOT(X86_FEATURE_XENPV));
}
-static inline notrace void arch_local_irq_restore(unsigned long f)
+static __always_inline void arch_local_irq_disable(void)
{
- PVOP_VCALLEE1(pv_irq_ops.restore_fl, f);
+ PVOP_ALT_VCALLEE0(irq.irq_disable, "cli;", ALT_NOT(X86_FEATURE_XENPV));
}
-static inline notrace void arch_local_irq_disable(void)
+static __always_inline void arch_local_irq_enable(void)
{
- PVOP_VCALLEE0(pv_irq_ops.irq_disable);
+ PVOP_ALT_VCALLEE0(irq.irq_enable, "sti;", ALT_NOT(X86_FEATURE_XENPV));
}
-static inline notrace void arch_local_irq_enable(void)
-{
- PVOP_VCALLEE0(pv_irq_ops.irq_enable);
-}
-
-static inline notrace unsigned long arch_local_irq_save(void)
+static __always_inline unsigned long arch_local_irq_save(void)
{
unsigned long f;
@@ -876,6 +708,7 @@ static inline notrace unsigned long arch_local_irq_save(void)
arch_local_irq_disable();
return f;
}
+#endif
/* Make sure as little as possible of this mess escapes. */
@@ -893,11 +726,23 @@ static inline notrace unsigned long arch_local_irq_save(void)
#undef PVOP_VCALL4
#undef PVOP_CALL4
+#define DEFINE_PARAVIRT_ASM(func, instr, sec) \
+ asm (".pushsection " #sec ", \"ax\"\n" \
+ ".global " #func "\n\t" \
+ ".type " #func ", @function\n\t" \
+ ASM_FUNC_ALIGN "\n" \
+ #func ":\n\t" \
+ ASM_ENDBR \
+ instr "\n\t" \
+ ASM_RET \
+ ".size " #func ", . - " #func "\n\t" \
+ ".popsection")
+
extern void default_banner(void);
#else /* __ASSEMBLY__ */
-#define _PVSITE(ptype, clobbers, ops, word, algn) \
+#define _PVSITE(ptype, ops, word, algn) \
771:; \
ops; \
772:; \
@@ -906,136 +751,52 @@ extern void default_banner(void);
word 771b; \
.byte ptype; \
.byte 772b-771b; \
- .short clobbers; \
+ _ASM_ALIGN; \
.popsection
-#define COND_PUSH(set, mask, reg) \
- .if ((~(set)) & mask); push %reg; .endif
-#define COND_POP(set, mask, reg) \
- .if ((~(set)) & mask); pop %reg; .endif
-
#ifdef CONFIG_X86_64
+#ifdef CONFIG_PARAVIRT_XXL
-#define PV_SAVE_REGS(set) \
- COND_PUSH(set, CLBR_RAX, rax); \
- COND_PUSH(set, CLBR_RCX, rcx); \
- COND_PUSH(set, CLBR_RDX, rdx); \
- COND_PUSH(set, CLBR_RSI, rsi); \
- COND_PUSH(set, CLBR_RDI, rdi); \
- COND_PUSH(set, CLBR_R8, r8); \
- COND_PUSH(set, CLBR_R9, r9); \
- COND_PUSH(set, CLBR_R10, r10); \
- COND_PUSH(set, CLBR_R11, r11)
-#define PV_RESTORE_REGS(set) \
- COND_POP(set, CLBR_R11, r11); \
- COND_POP(set, CLBR_R10, r10); \
- COND_POP(set, CLBR_R9, r9); \
- COND_POP(set, CLBR_R8, r8); \
- COND_POP(set, CLBR_RDI, rdi); \
- COND_POP(set, CLBR_RSI, rsi); \
- COND_POP(set, CLBR_RDX, rdx); \
- COND_POP(set, CLBR_RCX, rcx); \
- COND_POP(set, CLBR_RAX, rax)
-
-#define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 8)
-#define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .quad, 8)
+#define PARA_PATCH(off) ((off) / 8)
+#define PARA_SITE(ptype, ops) _PVSITE(ptype, ops, .quad, 8)
#define PARA_INDIRECT(addr) *addr(%rip)
-#else
-#define PV_SAVE_REGS(set) \
- COND_PUSH(set, CLBR_EAX, eax); \
- COND_PUSH(set, CLBR_EDI, edi); \
- COND_PUSH(set, CLBR_ECX, ecx); \
- COND_PUSH(set, CLBR_EDX, edx)
-#define PV_RESTORE_REGS(set) \
- COND_POP(set, CLBR_EDX, edx); \
- COND_POP(set, CLBR_ECX, ecx); \
- COND_POP(set, CLBR_EDI, edi); \
- COND_POP(set, CLBR_EAX, eax)
-
-#define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4)
-#define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4)
-#define PARA_INDIRECT(addr) *%cs:addr
-#endif
-
-#define INTERRUPT_RETURN \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_iret), CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_iret))
-
-#define DISABLE_INTERRUPTS(clobbers) \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_disable), clobbers, \
- PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE); \
- call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_disable); \
- PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
-#define ENABLE_INTERRUPTS(clobbers) \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_irq_enable), clobbers, \
- PV_SAVE_REGS(clobbers | CLBR_CALLEE_SAVE); \
- call PARA_INDIRECT(pv_irq_ops+PV_IRQ_irq_enable); \
- PV_RESTORE_REGS(clobbers | CLBR_CALLEE_SAVE);)
+#ifdef CONFIG_DEBUG_ENTRY
+.macro PARA_IRQ_save_fl
+ PARA_SITE(PARA_PATCH(PV_IRQ_save_fl),
+ ANNOTATE_RETPOLINE_SAFE;
+ call PARA_INDIRECT(pv_ops+PV_IRQ_save_fl);)
+.endm
-#define USERGS_SYSRET32 \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usergs_sysret32), \
- CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret32))
-
-#ifdef CONFIG_X86_32
-#define GET_CR0_INTO_EAX \
- push %ecx; push %edx; \
- call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); \
- pop %edx; pop %ecx
-
-#define ENABLE_INTERRUPTS_SYSEXIT \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \
- CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
-
-
-#else /* !CONFIG_X86_32 */
-
-/*
- * If swapgs is used while the userspace stack is still current,
- * there's no way to call a pvop. The PV replacement *must* be
- * inlined, or the swapgs instruction must be trapped and emulated.
- */
-#define SWAPGS_UNSAFE_STACK \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_swapgs), CLBR_NONE, \
- swapgs)
-
-/*
- * Note: swapgs is very special, and in practise is either going to be
- * implemented with a single "swapgs" instruction or something very
- * special. Either way, we don't need to save any registers for
- * it.
- */
-#define SWAPGS \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_swapgs), CLBR_NONE, \
- call PARA_INDIRECT(pv_cpu_ops+PV_CPU_swapgs) \
- )
-
-#define GET_CR2_INTO_RCX \
- call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr2); \
- movq %rax, %rcx; \
- xorq %rax, %rax;
-
-#define PARAVIRT_ADJUST_EXCEPTION_FRAME \
- PARA_SITE(PARA_PATCH(pv_irq_ops, PV_IRQ_adjust_exception_frame), \
- CLBR_NONE, \
- call PARA_INDIRECT(pv_irq_ops+PV_IRQ_adjust_exception_frame))
-
-#define USERGS_SYSRET64 \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_usergs_sysret64), \
- CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret64))
-
-#define ENABLE_INTERRUPTS_SYSEXIT32 \
- PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \
- CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit))
-#endif /* CONFIG_X86_32 */
+#define SAVE_FLAGS ALTERNATIVE "PARA_IRQ_save_fl;", "pushf; pop %rax;", \
+ ALT_NOT(X86_FEATURE_XENPV)
+#endif
+#endif /* CONFIG_PARAVIRT_XXL */
+#endif /* CONFIG_X86_64 */
#endif /* __ASSEMBLY__ */
#else /* CONFIG_PARAVIRT */
# define default_banner x86_init_noop
#endif /* !CONFIG_PARAVIRT */
+
+#ifndef __ASSEMBLY__
+#ifndef CONFIG_PARAVIRT_XXL
+static inline void paravirt_enter_mmap(struct mm_struct *mm)
+{
+}
+#endif
+
+#ifndef CONFIG_PARAVIRT
+static inline void paravirt_arch_exit_mmap(struct mm_struct *mm)
+{
+}
+#endif
+
+#ifndef CONFIG_PARAVIRT_SPINLOCKS
+static inline void paravirt_set_cap(void)
+{
+}
+#endif
+#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_PARAVIRT_H */
diff --git a/arch/x86/include/asm/paravirt_api_clock.h b/arch/x86/include/asm/paravirt_api_clock.h
new file mode 100644
index 000000000000..65ac7cee0dad
--- /dev/null
+++ b/arch/x86/include/asm/paravirt_api_clock.h
@@ -0,0 +1 @@
+#include <asm/paravirt.h>
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 82885099c869..4acbcddddc29 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -1,46 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PARAVIRT_TYPES_H
#define _ASM_X86_PARAVIRT_TYPES_H
-/* Bitmask of what can be clobbered: usually at least eax. */
-#define CLBR_NONE 0
-#define CLBR_EAX (1 << 0)
-#define CLBR_ECX (1 << 1)
-#define CLBR_EDX (1 << 2)
-#define CLBR_EDI (1 << 3)
-
-#ifdef CONFIG_X86_32
-/* CLBR_ANY should match all regs platform has. For i386, that's just it */
-#define CLBR_ANY ((1 << 4) - 1)
-
-#define CLBR_ARG_REGS (CLBR_EAX | CLBR_EDX | CLBR_ECX)
-#define CLBR_RET_REG (CLBR_EAX | CLBR_EDX)
-#define CLBR_SCRATCH (0)
-#else
-#define CLBR_RAX CLBR_EAX
-#define CLBR_RCX CLBR_ECX
-#define CLBR_RDX CLBR_EDX
-#define CLBR_RDI CLBR_EDI
-#define CLBR_RSI (1 << 4)
-#define CLBR_R8 (1 << 5)
-#define CLBR_R9 (1 << 6)
-#define CLBR_R10 (1 << 7)
-#define CLBR_R11 (1 << 8)
-
-#define CLBR_ANY ((1 << 9) - 1)
-
-#define CLBR_ARG_REGS (CLBR_RDI | CLBR_RSI | CLBR_RDX | \
- CLBR_RCX | CLBR_R8 | CLBR_R9)
-#define CLBR_RET_REG (CLBR_RAX)
-#define CLBR_SCRATCH (CLBR_R10 | CLBR_R11)
+#ifndef __ASSEMBLY__
+/* These all sit in the .parainstructions section to tell us what to patch. */
+struct paravirt_patch_site {
+ u8 *instr; /* original instructions */
+ u8 type; /* type of this instruction */
+ u8 len; /* length of original instruction */
+};
-#endif /* X86_64 */
+/* Lazy mode for batching updates / context switch */
+enum paravirt_lazy_mode {
+ PARAVIRT_LAZY_NONE,
+ PARAVIRT_LAZY_MMU,
+ PARAVIRT_LAZY_CPU,
+};
+#endif
-#define CLBR_CALLEE_SAVE ((CLBR_ARG_REGS | CLBR_SCRATCH) & ~CLBR_RET_REG)
+#ifdef CONFIG_PARAVIRT
#ifndef __ASSEMBLY__
#include <asm/desc_defs.h>
-#include <asm/kmap_types.h>
+#include <asm/pgtable_types.h>
+#include <asm/nospec-branch.h>
struct page;
struct thread_struct;
@@ -50,6 +34,9 @@ struct mm_struct;
struct desc_struct;
struct task_struct;
struct cpumask;
+struct flush_tlb_info;
+struct mmu_gather;
+struct vm_area_struct;
/*
* Wrapper type for pointers to code which uses the non-standard
@@ -61,68 +48,43 @@ struct paravirt_callee_save {
/* general info */
struct pv_info {
- unsigned int kernel_rpl;
- int shared_kernel_pmd;
- int paravirt_enabled;
- const char *name;
-};
+#ifdef CONFIG_PARAVIRT_XXL
+ u16 extra_user_64bit_cs; /* __USER_CS if none */
+#endif
-struct pv_init_ops {
- /*
- * Patch may replace one of the defined code sequences with
- * arbitrary code, subject to the same register constraints.
- * This generally means the code is not free to clobber any
- * registers other than EAX. The patch function should return
- * the number of bytes of code generated, as we nop pad the
- * rest in generic code.
- */
- unsigned (*patch)(u8 type, u16 clobber, void *insnbuf,
- unsigned long addr, unsigned len);
+ const char *name;
};
-
+#ifdef CONFIG_PARAVIRT_XXL
struct pv_lazy_ops {
/* Set deferred update mode, used for batching operations. */
void (*enter)(void);
void (*leave)(void);
-};
-
-struct pv_time_ops {
- unsigned long long (*sched_clock)(void);
- unsigned long (*get_tsc_khz)(void);
-};
+ void (*flush)(void);
+} __no_randomize_layout;
+#endif
struct pv_cpu_ops {
/* hooks for various privileged instructions */
+ void (*io_delay)(void);
+
+#ifdef CONFIG_PARAVIRT_XXL
unsigned long (*get_debugreg)(int regno);
void (*set_debugreg)(int regno, unsigned long value);
- void (*clts)(void);
-
unsigned long (*read_cr0)(void);
void (*write_cr0)(unsigned long);
- unsigned long (*read_cr4_safe)(void);
- unsigned long (*read_cr4)(void);
void (*write_cr4)(unsigned long);
-#ifdef CONFIG_X86_64
- unsigned long (*read_cr8)(void);
- void (*write_cr8)(unsigned long);
-#endif
-
/* Segment descriptor handling */
void (*load_tr_desc)(void);
void (*load_gdt)(const struct desc_ptr *);
void (*load_idt)(const struct desc_ptr *);
- void (*store_gdt)(struct desc_ptr *);
- void (*store_idt)(struct desc_ptr *);
void (*set_ldt)(const void *desc, unsigned entries);
unsigned long (*store_tr)(void);
void (*load_tls)(struct thread_struct *t, unsigned int cpu);
-#ifdef CONFIG_X86_64
void (*load_gs_index)(unsigned int idx);
-#endif
void (*write_ldt_entry)(struct desc_struct *ldt, int entrynum,
const void *desc);
void (*write_gdt_entry)(struct desc_struct *,
@@ -132,118 +94,78 @@ struct pv_cpu_ops {
void (*alloc_ldt)(struct desc_struct *ldt, unsigned entries);
void (*free_ldt)(struct desc_struct *ldt, unsigned entries);
- void (*load_sp0)(struct tss_struct *tss, struct thread_struct *t);
+ void (*load_sp0)(unsigned long sp0);
- void (*set_iopl_mask)(unsigned mask);
+#ifdef CONFIG_X86_IOPL_IOPERM
+ void (*invalidate_io_bitmap)(void);
+ void (*update_io_bitmap)(void);
+#endif
void (*wbinvd)(void);
- void (*io_delay)(void);
/* cpuid emulation, mostly so that caps bits can be disabled */
void (*cpuid)(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx);
- /* MSR, PMC and TSR operations.
- err = 0/-EFAULT. wrmsr returns 0/-EFAULT. */
- u64 (*read_msr)(unsigned int msr, int *err);
- int (*rdmsr_regs)(u32 *regs);
- int (*write_msr)(unsigned int msr, unsigned low, unsigned high);
- int (*wrmsr_regs)(u32 *regs);
-
- u64 (*read_tsc)(void);
- u64 (*read_pmc)(int counter);
- unsigned long long (*read_tscp)(unsigned int *aux);
-
- /*
- * Atomically enable interrupts and return to userspace. This
- * is only ever used to return to 32-bit processes; in a
- * 64-bit kernel, it's used for 32-on-64 compat processes, but
- * never native 64-bit processes. (Jump, not call.)
- */
- void (*irq_enable_sysexit)(void);
+ /* Unsafe MSR operations. These will warn or panic on failure. */
+ u64 (*read_msr)(unsigned int msr);
+ void (*write_msr)(unsigned int msr, unsigned low, unsigned high);
/*
- * Switch to usermode gs and return to 64-bit usermode using
- * sysret. Only used in 64-bit kernels to return to 64-bit
- * processes. Usermode register state, including %rsp, must
- * already be restored.
+ * Safe MSR operations.
+ * read sets err to 0 or -EIO. write returns 0 or -EIO.
*/
- void (*usergs_sysret64)(void);
+ u64 (*read_msr_safe)(unsigned int msr, int *err);
+ int (*write_msr_safe)(unsigned int msr, unsigned low, unsigned high);
- /*
- * Switch to usermode gs and return to 32-bit usermode using
- * sysret. Used to return to 32-on-64 compat processes.
- * Other usermode register state, including %esp, must already
- * be restored.
- */
- void (*usergs_sysret32)(void);
-
- /* Normal iret. Jump to this with the standard iret stack
- frame set up. */
- void (*iret)(void);
-
- void (*swapgs)(void);
+ u64 (*read_pmc)(int counter);
void (*start_context_switch)(struct task_struct *prev);
void (*end_context_switch)(struct task_struct *next);
-};
+#endif
+} __no_randomize_layout;
struct pv_irq_ops {
+#ifdef CONFIG_PARAVIRT_XXL
/*
- * Get/set interrupt state. save_fl and restore_fl are only
- * expected to use X86_EFLAGS_IF; all other bits
- * returned from save_fl are undefined, and may be ignored by
- * restore_fl.
+ * Get/set interrupt state. save_fl is expected to use X86_EFLAGS_IF;
+ * all other bits returned from save_fl are undefined.
*
* NOTE: These functions callers expect the callee to preserve
* more registers than the standard C calling convention.
*/
struct paravirt_callee_save save_fl;
- struct paravirt_callee_save restore_fl;
struct paravirt_callee_save irq_disable;
struct paravirt_callee_save irq_enable;
void (*safe_halt)(void);
void (*halt)(void);
-
-#ifdef CONFIG_X86_64
- void (*adjust_exception_frame)(void);
#endif
-};
-
-struct pv_apic_ops {
-#ifdef CONFIG_X86_LOCAL_APIC
- void (*startup_ipi_hook)(int phys_apicid,
- unsigned long start_eip,
- unsigned long start_esp);
-#endif
-};
+} __no_randomize_layout;
struct pv_mmu_ops {
- unsigned long (*read_cr2)(void);
- void (*write_cr2)(unsigned long);
+ /* TLB operations */
+ void (*flush_tlb_user)(void);
+ void (*flush_tlb_kernel)(void);
+ void (*flush_tlb_one_user)(unsigned long addr);
+ void (*flush_tlb_multi)(const struct cpumask *cpus,
+ const struct flush_tlb_info *info);
- unsigned long (*read_cr3)(void);
- void (*write_cr3)(unsigned long);
+ void (*tlb_remove_table)(struct mmu_gather *tlb, void *table);
- /*
- * Hooks for intercepting the creation/use/destruction of an
- * mm_struct.
- */
- void (*activate_mm)(struct mm_struct *prev,
- struct mm_struct *next);
- void (*dup_mmap)(struct mm_struct *oldmm,
- struct mm_struct *mm);
+ /* Hook for intercepting the destruction of an mm_struct. */
void (*exit_mmap)(struct mm_struct *mm);
+ void (*notify_page_enc_status_changed)(unsigned long pfn, int npages, bool enc);
+#ifdef CONFIG_PARAVIRT_XXL
+ struct paravirt_callee_save read_cr2;
+ void (*write_cr2)(unsigned long);
- /* TLB operations */
- void (*flush_tlb_user)(void);
- void (*flush_tlb_kernel)(void);
- void (*flush_tlb_single)(unsigned long addr);
- void (*flush_tlb_others)(const struct cpumask *cpus,
- struct mm_struct *mm,
- unsigned long va);
+ unsigned long (*read_cr3)(void);
+ void (*write_cr3)(unsigned long);
+
+ /* Hook for intercepting the creation/use of an mm_struct. */
+ void (*enter_mmap)(struct mm_struct *mm);
/* Hooks for allocating and freeing a pagetable top-level */
int (*pgd_alloc)(struct mm_struct *mm);
@@ -256,29 +178,19 @@ struct pv_mmu_ops {
void (*alloc_pte)(struct mm_struct *mm, unsigned long pfn);
void (*alloc_pmd)(struct mm_struct *mm, unsigned long pfn);
void (*alloc_pud)(struct mm_struct *mm, unsigned long pfn);
+ void (*alloc_p4d)(struct mm_struct *mm, unsigned long pfn);
void (*release_pte)(unsigned long pfn);
void (*release_pmd)(unsigned long pfn);
void (*release_pud)(unsigned long pfn);
+ void (*release_p4d)(unsigned long pfn);
/* Pagetable manipulation functions */
void (*set_pte)(pte_t *ptep, pte_t pteval);
- void (*set_pte_at)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep, pte_t pteval);
void (*set_pmd)(pmd_t *pmdp, pmd_t pmdval);
- void (*set_pmd_at)(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp, pmd_t pmdval);
- void (*pte_update)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep);
- void (*pte_update_defer)(struct mm_struct *mm,
- unsigned long addr, pte_t *ptep);
- void (*pmd_update)(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp);
- void (*pmd_update_defer)(struct mm_struct *mm,
- unsigned long addr, pmd_t *pmdp);
-
- pte_t (*ptep_modify_prot_start)(struct mm_struct *mm, unsigned long addr,
+
+ pte_t (*ptep_modify_prot_start)(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep);
- void (*ptep_modify_prot_commit)(struct mm_struct *mm, unsigned long addr,
+ void (*ptep_modify_prot_commit)(struct vm_area_struct *vma, unsigned long addr,
pte_t *ptep, pte_t pte);
struct paravirt_callee_save pte_val;
@@ -287,27 +199,22 @@ struct pv_mmu_ops {
struct paravirt_callee_save pgd_val;
struct paravirt_callee_save make_pgd;
-#if PAGETABLE_LEVELS >= 3
-#ifdef CONFIG_X86_PAE
- void (*set_pte_atomic)(pte_t *ptep, pte_t pteval);
- void (*pte_clear)(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep);
- void (*pmd_clear)(pmd_t *pmdp);
-
-#endif /* CONFIG_X86_PAE */
-
void (*set_pud)(pud_t *pudp, pud_t pudval);
struct paravirt_callee_save pmd_val;
struct paravirt_callee_save make_pmd;
-#if PAGETABLE_LEVELS == 4
struct paravirt_callee_save pud_val;
struct paravirt_callee_save make_pud;
- void (*set_pgd)(pgd_t *pudp, pgd_t pgdval);
-#endif /* PAGETABLE_LEVELS == 4 */
-#endif /* PAGETABLE_LEVELS >= 3 */
+ void (*set_p4d)(p4d_t *p4dp, p4d_t p4dval);
+
+#if CONFIG_PGTABLE_LEVELS >= 5
+ struct paravirt_callee_save p4d_val;
+ struct paravirt_callee_save make_p4d;
+
+ void (*set_pgd)(pgd_t *pgdp, pgd_t pgdval);
+#endif /* CONFIG_PGTABLE_LEVELS >= 5 */
struct pv_lazy_ops lazy_mode;
@@ -317,90 +224,67 @@ struct pv_mmu_ops {
an mfn. We can tell which is which from the index. */
void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
phys_addr_t phys, pgprot_t flags);
-};
+#endif
+} __no_randomize_layout;
struct arch_spinlock;
+#ifdef CONFIG_SMP
+#include <asm/spinlock_types.h>
+#endif
+
+struct qspinlock;
+
struct pv_lock_ops {
- int (*spin_is_locked)(struct arch_spinlock *lock);
- int (*spin_is_contended)(struct arch_spinlock *lock);
- void (*spin_lock)(struct arch_spinlock *lock);
- void (*spin_lock_flags)(struct arch_spinlock *lock, unsigned long flags);
- int (*spin_trylock)(struct arch_spinlock *lock);
- void (*spin_unlock)(struct arch_spinlock *lock);
-};
+ void (*queued_spin_lock_slowpath)(struct qspinlock *lock, u32 val);
+ struct paravirt_callee_save queued_spin_unlock;
+
+ void (*wait)(u8 *ptr, u8 val);
+ void (*kick)(int cpu);
+
+ struct paravirt_callee_save vcpu_is_preempted;
+} __no_randomize_layout;
/* This contains all the paravirt structures: we get a convenient
* number for each function using the offset which we use to indicate
* what to patch. */
struct paravirt_patch_template {
- struct pv_init_ops pv_init_ops;
- struct pv_time_ops pv_time_ops;
- struct pv_cpu_ops pv_cpu_ops;
- struct pv_irq_ops pv_irq_ops;
- struct pv_apic_ops pv_apic_ops;
- struct pv_mmu_ops pv_mmu_ops;
- struct pv_lock_ops pv_lock_ops;
-};
+ struct pv_cpu_ops cpu;
+ struct pv_irq_ops irq;
+ struct pv_mmu_ops mmu;
+ struct pv_lock_ops lock;
+} __no_randomize_layout;
extern struct pv_info pv_info;
-extern struct pv_init_ops pv_init_ops;
-extern struct pv_time_ops pv_time_ops;
-extern struct pv_cpu_ops pv_cpu_ops;
-extern struct pv_irq_ops pv_irq_ops;
-extern struct pv_apic_ops pv_apic_ops;
-extern struct pv_mmu_ops pv_mmu_ops;
-extern struct pv_lock_ops pv_lock_ops;
+extern struct paravirt_patch_template pv_ops;
#define PARAVIRT_PATCH(x) \
(offsetof(struct paravirt_patch_template, x) / sizeof(void *))
#define paravirt_type(op) \
[paravirt_typenum] "i" (PARAVIRT_PATCH(op)), \
- [paravirt_opptr] "i" (&(op))
-#define paravirt_clobber(clobber) \
- [paravirt_clobber] "i" (clobber)
-
+ [paravirt_opptr] "m" (pv_ops.op)
/*
* Generate some code, and mark it as patchable by the
* apply_paravirt() alternate instruction patcher.
*/
-#define _paravirt_alt(insn_string, type, clobber) \
+#define _paravirt_alt(insn_string, type) \
"771:\n\t" insn_string "\n" "772:\n" \
".pushsection .parainstructions,\"a\"\n" \
_ASM_ALIGN "\n" \
_ASM_PTR " 771b\n" \
" .byte " type "\n" \
" .byte 772b-771b\n" \
- " .short " clobber "\n" \
+ _ASM_ALIGN "\n" \
".popsection\n"
/* Generate patchable code, with the default asm parameters. */
#define paravirt_alt(insn_string) \
- _paravirt_alt(insn_string, "%c[paravirt_typenum]", "%c[paravirt_clobber]")
+ _paravirt_alt(insn_string, "%c[paravirt_typenum]")
/* Simple instruction patching code. */
-#define DEF_NATIVE(ops, name, code) \
- extern const char start_##ops##_##name[], end_##ops##_##name[]; \
- asm("start_" #ops "_" #name ": " code "; end_" #ops "_" #name ":")
-
-unsigned paravirt_patch_nop(void);
-unsigned paravirt_patch_ident_32(void *insnbuf, unsigned len);
-unsigned paravirt_patch_ident_64(void *insnbuf, unsigned len);
-unsigned paravirt_patch_ignore(unsigned len);
-unsigned paravirt_patch_call(void *insnbuf,
- const void *target, u16 tgt_clobbers,
- unsigned long addr, u16 site_clobbers,
- unsigned len);
-unsigned paravirt_patch_jmp(void *insnbuf, const void *target,
- unsigned long addr, unsigned len);
-unsigned paravirt_patch_default(u8 type, u16 clobbers, void *insnbuf,
- unsigned long addr, unsigned len);
-
-unsigned paravirt_patch_insns(void *insnbuf, unsigned len,
- const char *start, const char *end);
-
-unsigned native_patch(u8 type, u16 clobbers, void *ibuf,
- unsigned long addr, unsigned len);
+#define NATIVE_LABEL(a,x,b) "\n\t.globl " a #x "_" #b "\n" a #x "_" #b ":\n\t"
+
+unsigned int paravirt_patch(u8 type, void *insn_buff, unsigned long addr, unsigned int len);
int paravirt_disable_iospace(void);
@@ -410,7 +294,9 @@ int paravirt_disable_iospace(void);
* offset into the paravirt_patch_template structure, and can therefore be
* freely converted back into a structure offset.
*/
-#define PARAVIRT_CALL "call *%c[paravirt_opptr];"
+#define PARAVIRT_CALL \
+ ANNOTATE_RETPOLINE_SAFE \
+ "call *%[paravirt_opptr];"
/*
* These macros are intended to wrap calls through one of the paravirt
@@ -423,7 +309,7 @@ int paravirt_disable_iospace(void);
* Unfortunately, this is a relatively slow operation for modern CPUs,
* because it cannot necessarily determine what the destination
* address is. In this case, the address is a runtime constant, so at
- * the very least we can patch the call to e a simple direct call, or
+ * the very least we can patch the call to a simple direct call, or,
* ideally, patch an inline implementation into the callsite. (Direct
* calls are essentially free, because the call and return addresses
* are completely predictable.)
@@ -434,10 +320,10 @@ int paravirt_disable_iospace(void);
* on the stack. All caller-save registers (eax,edx,ecx) are expected
* to be modified (either clobbered or used for return values).
* X86_64, on the other hand, already specifies a register-based calling
- * conventions, returning at %rax, with parameteres going on %rdi, %rsi,
+ * conventions, returning at %rax, with parameters going in %rdi, %rsi,
* %rdx, and %rcx. Note that for this reason, x86_64 does not need any
* special handling for dealing with 4 arguments, unlike i386.
- * However, x86_64 also have to clobber all caller saved registers, which
+ * However, x86_64 also has to clobber all caller saved registers, which
* unfortunately, are quite a bit (r8 - r11)
*
* The call instruction itself is marked by placing its start address
@@ -455,31 +341,30 @@ int paravirt_disable_iospace(void);
* There are 5 sets of PVOP_* macros for dealing with 0-4 arguments.
* It could be extended to more arguments, but there would be little
* to be gained from that. For each number of arguments, there are
- * the two VCALL and CALL variants for void and non-void functions.
+ * two VCALL and CALL variants for void and non-void functions.
*
* When there is a return value, the invoker of the macro must specify
* the return type. The macro then uses sizeof() on that type to
- * determine whether its a 32 or 64 bit value, and places the return
+ * determine whether it's a 32 or 64 bit value and places the return
* in the right register(s) (just %eax for 32-bit, and %edx:%eax for
- * 64-bit). For x86_64 machines, it just returns at %rax regardless of
+ * 64-bit). For x86_64 machines, it just returns in %rax regardless of
* the return value size.
*
- * 64-bit arguments are passed as a pair of adjacent 32-bit arguments
+ * 64-bit arguments are passed as a pair of adjacent 32-bit arguments;
* i386 also passes 64-bit arguments as a pair of adjacent 32-bit arguments
* in low,high order
*
* Small structures are passed and returned in registers. The macro
* calling convention can't directly deal with this, so the wrapper
- * functions must do this.
+ * functions must do it.
*
* These PVOP_* macros are only defined within this header. This
* means that all uses must be wrapped in inline functions. This also
* makes sure the incoming and outgoing types are always correct.
*/
#ifdef CONFIG_X86_32
-#define PVOP_VCALL_ARGS \
- unsigned long __eax = __eax, __edx = __edx, __ecx = __ecx
-#define PVOP_CALL_ARGS PVOP_VCALL_ARGS
+#define PVOP_CALL_ARGS \
+ unsigned long __eax = __eax, __edx = __edx, __ecx = __ecx;
#define PVOP_CALL_ARG1(x) "a" ((unsigned long)(x))
#define PVOP_CALL_ARG2(x) "d" ((unsigned long)(x))
@@ -496,10 +381,9 @@ int paravirt_disable_iospace(void);
#define VEXTRA_CLOBBERS
#else /* CONFIG_X86_64 */
/* [re]ax isn't an arg, but the return val */
-#define PVOP_VCALL_ARGS \
- unsigned long __edi = __edi, __esi = __esi, \
- __edx = __edx, __ecx = __ecx, __eax = __eax
-#define PVOP_CALL_ARGS PVOP_VCALL_ARGS
+#define PVOP_CALL_ARGS \
+ unsigned long __edi = __edi, __esi = __esi, \
+ __edx = __edx, __ecx = __ecx, __eax = __eax;
#define PVOP_CALL_ARG1(x) "D" ((unsigned long)(x))
#define PVOP_CALL_ARG2(x) "S" ((unsigned long)(x))
@@ -511,8 +395,17 @@ int paravirt_disable_iospace(void);
"=c" (__ecx)
#define PVOP_CALL_CLOBBERS PVOP_VCALL_CLOBBERS, "=a" (__eax)
-/* void functions are still allowed [re]ax for scratch */
+/*
+ * void functions are still allowed [re]ax for scratch.
+ *
+ * The ZERO_CALL_USED REGS feature may end up zeroing out callee-saved
+ * registers. Make sure we model this with the appropriate clobbers.
+ */
+#ifdef CONFIG_ZERO_CALL_USED_REGS
+#define PVOP_VCALLEE_CLOBBERS "=a" (__eax), PVOP_VCALL_CLOBBERS
+#else
#define PVOP_VCALLEE_CLOBBERS "=a" (__eax)
+#endif
#define PVOP_CALLEE_CLOBBERS PVOP_VCALLEE_CLOBBERS
#define EXTRA_CLOBBERS , "r8", "r9", "r10", "r11"
@@ -520,152 +413,141 @@ int paravirt_disable_iospace(void);
#endif /* CONFIG_X86_32 */
#ifdef CONFIG_PARAVIRT_DEBUG
-#define PVOP_TEST_NULL(op) BUG_ON(op == NULL)
+#define PVOP_TEST_NULL(op) BUG_ON(pv_ops.op == NULL)
#else
-#define PVOP_TEST_NULL(op) ((void)op)
+#define PVOP_TEST_NULL(op) ((void)pv_ops.op)
#endif
-#define ____PVOP_CALL(rettype, op, clbr, call_clbr, extra_clbr, \
- pre, post, ...) \
- ({ \
- rettype __ret; \
- PVOP_CALL_ARGS; \
- PVOP_TEST_NULL(op); \
- /* This is 32-bit specific, but is okay in 64-bit */ \
- /* since this condition will never hold */ \
- if (sizeof(rettype) > sizeof(unsigned long)) { \
- asm volatile(pre \
- paravirt_alt(PARAVIRT_CALL) \
- post \
- : call_clbr \
- : paravirt_type(op), \
- paravirt_clobber(clbr), \
- ##__VA_ARGS__ \
- : "memory", "cc" extra_clbr); \
- __ret = (rettype)((((u64)__edx) << 32) | __eax); \
- } else { \
- asm volatile(pre \
- paravirt_alt(PARAVIRT_CALL) \
- post \
- : call_clbr \
- : paravirt_type(op), \
- paravirt_clobber(clbr), \
- ##__VA_ARGS__ \
- : "memory", "cc" extra_clbr); \
- __ret = (rettype)__eax; \
+#define PVOP_RETVAL(rettype) \
+ ({ unsigned long __mask = ~0UL; \
+ BUILD_BUG_ON(sizeof(rettype) > sizeof(unsigned long)); \
+ switch (sizeof(rettype)) { \
+ case 1: __mask = 0xffUL; break; \
+ case 2: __mask = 0xffffUL; break; \
+ case 4: __mask = 0xffffffffUL; break; \
+ default: break; \
} \
- __ret; \
+ __mask & __eax; \
})
-#define __PVOP_CALL(rettype, op, pre, post, ...) \
- ____PVOP_CALL(rettype, op, CLBR_ANY, PVOP_CALL_CLOBBERS, \
- EXTRA_CLOBBERS, pre, post, ##__VA_ARGS__)
-
-#define __PVOP_CALLEESAVE(rettype, op, pre, post, ...) \
- ____PVOP_CALL(rettype, op.func, CLBR_RET_REG, \
- PVOP_CALLEE_CLOBBERS, , \
- pre, post, ##__VA_ARGS__)
+#define ____PVOP_CALL(ret, op, call_clbr, extra_clbr, ...) \
+ ({ \
+ PVOP_CALL_ARGS; \
+ PVOP_TEST_NULL(op); \
+ asm volatile(paravirt_alt(PARAVIRT_CALL) \
+ : call_clbr, ASM_CALL_CONSTRAINT \
+ : paravirt_type(op), \
+ ##__VA_ARGS__ \
+ : "memory", "cc" extra_clbr); \
+ ret; \
+ })
-#define ____PVOP_VCALL(op, clbr, call_clbr, extra_clbr, pre, post, ...) \
+#define ____PVOP_ALT_CALL(ret, op, alt, cond, call_clbr, \
+ extra_clbr, ...) \
({ \
- PVOP_VCALL_ARGS; \
+ PVOP_CALL_ARGS; \
PVOP_TEST_NULL(op); \
- asm volatile(pre \
- paravirt_alt(PARAVIRT_CALL) \
- post \
- : call_clbr \
+ asm volatile(ALTERNATIVE(paravirt_alt(PARAVIRT_CALL), \
+ alt, cond) \
+ : call_clbr, ASM_CALL_CONSTRAINT \
: paravirt_type(op), \
- paravirt_clobber(clbr), \
##__VA_ARGS__ \
: "memory", "cc" extra_clbr); \
+ ret; \
})
-#define __PVOP_VCALL(op, pre, post, ...) \
- ____PVOP_VCALL(op, CLBR_ANY, PVOP_VCALL_CLOBBERS, \
- VEXTRA_CLOBBERS, \
- pre, post, ##__VA_ARGS__)
+#define __PVOP_CALL(rettype, op, ...) \
+ ____PVOP_CALL(PVOP_RETVAL(rettype), op, \
+ PVOP_CALL_CLOBBERS, EXTRA_CLOBBERS, ##__VA_ARGS__)
+
+#define __PVOP_ALT_CALL(rettype, op, alt, cond, ...) \
+ ____PVOP_ALT_CALL(PVOP_RETVAL(rettype), op, alt, cond, \
+ PVOP_CALL_CLOBBERS, EXTRA_CLOBBERS, \
+ ##__VA_ARGS__)
+
+#define __PVOP_CALLEESAVE(rettype, op, ...) \
+ ____PVOP_CALL(PVOP_RETVAL(rettype), op.func, \
+ PVOP_CALLEE_CLOBBERS, , ##__VA_ARGS__)
+
+#define __PVOP_ALT_CALLEESAVE(rettype, op, alt, cond, ...) \
+ ____PVOP_ALT_CALL(PVOP_RETVAL(rettype), op.func, alt, cond, \
+ PVOP_CALLEE_CLOBBERS, , ##__VA_ARGS__)
+
-#define __PVOP_VCALLEESAVE(op, pre, post, ...) \
- ____PVOP_VCALL(op.func, CLBR_RET_REG, \
- PVOP_VCALLEE_CLOBBERS, , \
- pre, post, ##__VA_ARGS__)
+#define __PVOP_VCALL(op, ...) \
+ (void)____PVOP_CALL(, op, PVOP_VCALL_CLOBBERS, \
+ VEXTRA_CLOBBERS, ##__VA_ARGS__)
+#define __PVOP_ALT_VCALL(op, alt, cond, ...) \
+ (void)____PVOP_ALT_CALL(, op, alt, cond, \
+ PVOP_VCALL_CLOBBERS, VEXTRA_CLOBBERS, \
+ ##__VA_ARGS__)
+
+#define __PVOP_VCALLEESAVE(op, ...) \
+ (void)____PVOP_CALL(, op.func, \
+ PVOP_VCALLEE_CLOBBERS, , ##__VA_ARGS__)
+
+#define __PVOP_ALT_VCALLEESAVE(op, alt, cond, ...) \
+ (void)____PVOP_ALT_CALL(, op.func, alt, cond, \
+ PVOP_VCALLEE_CLOBBERS, , ##__VA_ARGS__)
#define PVOP_CALL0(rettype, op) \
- __PVOP_CALL(rettype, op, "", "")
+ __PVOP_CALL(rettype, op)
#define PVOP_VCALL0(op) \
- __PVOP_VCALL(op, "", "")
+ __PVOP_VCALL(op)
+#define PVOP_ALT_CALL0(rettype, op, alt, cond) \
+ __PVOP_ALT_CALL(rettype, op, alt, cond)
+#define PVOP_ALT_VCALL0(op, alt, cond) \
+ __PVOP_ALT_VCALL(op, alt, cond)
#define PVOP_CALLEE0(rettype, op) \
- __PVOP_CALLEESAVE(rettype, op, "", "")
+ __PVOP_CALLEESAVE(rettype, op)
#define PVOP_VCALLEE0(op) \
- __PVOP_VCALLEESAVE(op, "", "")
+ __PVOP_VCALLEESAVE(op)
+#define PVOP_ALT_CALLEE0(rettype, op, alt, cond) \
+ __PVOP_ALT_CALLEESAVE(rettype, op, alt, cond)
+#define PVOP_ALT_VCALLEE0(op, alt, cond) \
+ __PVOP_ALT_VCALLEESAVE(op, alt, cond)
#define PVOP_CALL1(rettype, op, arg1) \
- __PVOP_CALL(rettype, op, "", "", PVOP_CALL_ARG1(arg1))
+ __PVOP_CALL(rettype, op, PVOP_CALL_ARG1(arg1))
#define PVOP_VCALL1(op, arg1) \
- __PVOP_VCALL(op, "", "", PVOP_CALL_ARG1(arg1))
+ __PVOP_VCALL(op, PVOP_CALL_ARG1(arg1))
+#define PVOP_ALT_VCALL1(op, arg1, alt, cond) \
+ __PVOP_ALT_VCALL(op, alt, cond, PVOP_CALL_ARG1(arg1))
#define PVOP_CALLEE1(rettype, op, arg1) \
- __PVOP_CALLEESAVE(rettype, op, "", "", PVOP_CALL_ARG1(arg1))
+ __PVOP_CALLEESAVE(rettype, op, PVOP_CALL_ARG1(arg1))
#define PVOP_VCALLEE1(op, arg1) \
- __PVOP_VCALLEESAVE(op, "", "", PVOP_CALL_ARG1(arg1))
+ __PVOP_VCALLEESAVE(op, PVOP_CALL_ARG1(arg1))
+#define PVOP_ALT_CALLEE1(rettype, op, arg1, alt, cond) \
+ __PVOP_ALT_CALLEESAVE(rettype, op, alt, cond, PVOP_CALL_ARG1(arg1))
+#define PVOP_ALT_VCALLEE1(op, arg1, alt, cond) \
+ __PVOP_ALT_VCALLEESAVE(op, alt, cond, PVOP_CALL_ARG1(arg1))
#define PVOP_CALL2(rettype, op, arg1, arg2) \
- __PVOP_CALL(rettype, op, "", "", PVOP_CALL_ARG1(arg1), \
- PVOP_CALL_ARG2(arg2))
+ __PVOP_CALL(rettype, op, PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2))
#define PVOP_VCALL2(op, arg1, arg2) \
- __PVOP_VCALL(op, "", "", PVOP_CALL_ARG1(arg1), \
- PVOP_CALL_ARG2(arg2))
-
-#define PVOP_CALLEE2(rettype, op, arg1, arg2) \
- __PVOP_CALLEESAVE(rettype, op, "", "", PVOP_CALL_ARG1(arg1), \
- PVOP_CALL_ARG2(arg2))
-#define PVOP_VCALLEE2(op, arg1, arg2) \
- __PVOP_VCALLEESAVE(op, "", "", PVOP_CALL_ARG1(arg1), \
- PVOP_CALL_ARG2(arg2))
-
+ __PVOP_VCALL(op, PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2))
#define PVOP_CALL3(rettype, op, arg1, arg2, arg3) \
- __PVOP_CALL(rettype, op, "", "", PVOP_CALL_ARG1(arg1), \
+ __PVOP_CALL(rettype, op, PVOP_CALL_ARG1(arg1), \
PVOP_CALL_ARG2(arg2), PVOP_CALL_ARG3(arg3))
#define PVOP_VCALL3(op, arg1, arg2, arg3) \
- __PVOP_VCALL(op, "", "", PVOP_CALL_ARG1(arg1), \
+ __PVOP_VCALL(op, PVOP_CALL_ARG1(arg1), \
PVOP_CALL_ARG2(arg2), PVOP_CALL_ARG3(arg3))
-/* This is the only difference in x86_64. We can make it much simpler */
-#ifdef CONFIG_X86_32
#define PVOP_CALL4(rettype, op, arg1, arg2, arg3, arg4) \
__PVOP_CALL(rettype, op, \
- "push %[_arg4];", "lea 4(%%esp),%%esp;", \
- PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2), \
- PVOP_CALL_ARG3(arg3), [_arg4] "mr" ((u32)(arg4)))
-#define PVOP_VCALL4(op, arg1, arg2, arg3, arg4) \
- __PVOP_VCALL(op, \
- "push %[_arg4];", "lea 4(%%esp),%%esp;", \
- "0" ((u32)(arg1)), "1" ((u32)(arg2)), \
- "2" ((u32)(arg3)), [_arg4] "mr" ((u32)(arg4)))
-#else
-#define PVOP_CALL4(rettype, op, arg1, arg2, arg3, arg4) \
- __PVOP_CALL(rettype, op, "", "", \
PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2), \
PVOP_CALL_ARG3(arg3), PVOP_CALL_ARG4(arg4))
#define PVOP_VCALL4(op, arg1, arg2, arg3, arg4) \
- __PVOP_VCALL(op, "", "", \
- PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2), \
+ __PVOP_VCALL(op, PVOP_CALL_ARG1(arg1), PVOP_CALL_ARG2(arg2), \
PVOP_CALL_ARG3(arg3), PVOP_CALL_ARG4(arg4))
-#endif
-
-/* Lazy mode for batching updates / context switch */
-enum paravirt_lazy_mode {
- PARAVIRT_LAZY_NONE,
- PARAVIRT_LAZY_MMU,
- PARAVIRT_LAZY_CPU,
-};
enum paravirt_lazy_mode paravirt_get_lazy_mode(void);
void paravirt_start_context_switch(struct task_struct *prev);
@@ -673,24 +555,24 @@ void paravirt_end_context_switch(struct task_struct *next);
void paravirt_enter_lazy_mmu(void);
void paravirt_leave_lazy_mmu(void);
+void paravirt_flush_lazy_mmu(void);
void _paravirt_nop(void);
-u32 _paravirt_ident_32(u32);
+void paravirt_BUG(void);
+unsigned long paravirt_ret0(void);
+#ifdef CONFIG_PARAVIRT_XXL
u64 _paravirt_ident_64(u64);
+unsigned long pv_native_save_fl(void);
+void pv_native_irq_disable(void);
+void pv_native_irq_enable(void);
+unsigned long pv_native_read_cr2(void);
+#endif
#define paravirt_nop ((void *)_paravirt_nop)
-/* These all sit in the .parainstructions section to tell us what to patch. */
-struct paravirt_patch_site {
- u8 *instr; /* original instructions */
- u8 instrtype; /* type of this instruction */
- u8 len; /* length of original instruction */
- u16 clobbers; /* what registers you may clobber */
-};
-
extern struct paravirt_patch_site __parainstructions[],
__parainstructions_end[];
#endif /* __ASSEMBLY__ */
-
+#endif /* CONFIG_PARAVIRT */
#endif /* _ASM_X86_PARAVIRT_TYPES_H */
diff --git a/arch/x86/include/asm/parport.h b/arch/x86/include/asm/parport.h
index 3c4ffeb467e9..163f78259a7e 100644
--- a/arch/x86/include/asm/parport.h
+++ b/arch/x86/include/asm/parport.h
@@ -1,8 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PARPORT_H
#define _ASM_X86_PARPORT_H
-static int __devinit parport_pc_find_isa_ports(int autoirq, int autodma);
-static int __devinit parport_pc_find_nonpci_ports(int autoirq, int autodma)
+static int parport_pc_find_isa_ports(int autoirq, int autodma);
+static int parport_pc_find_nonpci_ports(int autoirq, int autodma)
{
return parport_pc_find_isa_ports(autoirq, autodma);
}
diff --git a/arch/x86/include/asm/pat.h b/arch/x86/include/asm/pat.h
deleted file mode 100644
index e2c1668dde7a..000000000000
--- a/arch/x86/include/asm/pat.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#ifndef _ASM_X86_PAT_H
-#define _ASM_X86_PAT_H
-
-#include <linux/types.h>
-#include <asm/pgtable_types.h>
-
-#ifdef CONFIG_X86_PAT
-extern int pat_enabled;
-#else
-static const int pat_enabled;
-#endif
-
-extern void pat_init(void);
-
-extern int reserve_memtype(u64 start, u64 end,
- unsigned long req_type, unsigned long *ret_type);
-extern int free_memtype(u64 start, u64 end);
-
-extern int kernel_map_sync_memtype(u64 base, unsigned long size,
- unsigned long flag);
-
-int io_reserve_memtype(resource_size_t start, resource_size_t end,
- unsigned long *type);
-
-void io_free_memtype(resource_size_t start, resource_size_t end);
-
-#endif /* _ASM_X86_PAT_H */
diff --git a/arch/x86/include/asm/pc-conf-reg.h b/arch/x86/include/asm/pc-conf-reg.h
new file mode 100644
index 000000000000..56bceceacf5f
--- /dev/null
+++ b/arch/x86/include/asm/pc-conf-reg.h
@@ -0,0 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Support for the configuration register space at port I/O locations
+ * 0x22 and 0x23 variously used by PC architectures, e.g. the MP Spec,
+ * Cyrix CPUs, numerous chipsets.
+ */
+#ifndef _ASM_X86_PC_CONF_REG_H
+#define _ASM_X86_PC_CONF_REG_H
+
+#include <linux/io.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+
+#define PC_CONF_INDEX 0x22
+#define PC_CONF_DATA 0x23
+
+#define PC_CONF_MPS_IMCR 0x70
+
+extern raw_spinlock_t pc_conf_lock;
+
+static inline u8 pc_conf_get(u8 reg)
+{
+ outb(reg, PC_CONF_INDEX);
+ return inb(PC_CONF_DATA);
+}
+
+static inline void pc_conf_set(u8 reg, u8 data)
+{
+ outb(reg, PC_CONF_INDEX);
+ outb(data, PC_CONF_DATA);
+}
+
+#endif /* _ASM_X86_PC_CONF_REG_H */
diff --git a/arch/x86/include/asm/pci-direct.h b/arch/x86/include/asm/pci-direct.h
index b1e7a45d868a..94597a3cf3d0 100644
--- a/arch/x86/include/asm/pci-direct.h
+++ b/arch/x86/include/asm/pci-direct.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PCI_DIRECT_H
#define _ASM_X86_PCI_DIRECT_H
@@ -14,8 +15,4 @@ extern void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val);
extern void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
extern int early_pci_allowed(void);
-
-extern unsigned int pci_early_dump_regs;
-extern void early_dump_pci_device(u8 bus, u8 slot, u8 func);
-extern void early_dump_pci_devices(void);
#endif /* _ASM_X86_PCI_DIRECT_H */
diff --git a/arch/x86/include/asm/pci-functions.h b/arch/x86/include/asm/pci-functions.h
index ed0bab427354..1bbc10812ae1 100644
--- a/arch/x86/include/asm/pci-functions.h
+++ b/arch/x86/include/asm/pci-functions.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* PCI BIOS function numbering for conventional PCI BIOS
* systems
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 676129229630..b40c462b4af3 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PCI_H
#define _ASM_X86_PCI_H
@@ -5,36 +6,44 @@
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/string.h>
-#include <asm/scatterlist.h>
+#include <linux/scatterlist.h>
+#include <linux/numa.h>
#include <asm/io.h>
+#include <asm/memtype.h>
#include <asm/x86_init.h>
-#ifdef __KERNEL__
-
struct pci_sysdata {
int domain; /* PCI domain */
int node; /* NUMA node */
+#ifdef CONFIG_ACPI
+ struct acpi_device *companion; /* ACPI companion device */
+#endif
#ifdef CONFIG_X86_64
void *iommu; /* IOMMU private data */
#endif
+#ifdef CONFIG_PCI_MSI
+ void *fwnode; /* IRQ domain for MSI assignment */
+#endif
+#if IS_ENABLED(CONFIG_VMD)
+ struct pci_dev *vmd_dev; /* VMD Device if in Intel VMD domain */
+#endif
};
extern int pci_routeirq;
extern int noioapicquirk;
extern int noioapicreroute;
-/* scan a bus after allocating a pci_sysdata for it */
-extern struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops,
- int node);
-extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
+static inline struct pci_sysdata *to_pci_sysdata(const struct pci_bus *bus)
+{
+ return bus->sysdata;
+}
#ifdef CONFIG_PCI
#ifdef CONFIG_PCI_DOMAINS
static inline int pci_domain_nr(struct pci_bus *bus)
{
- struct pci_sysdata *sd = bus->sysdata;
- return sd->domain;
+ return to_pci_sysdata(bus)->domain;
}
static inline int pci_proc_domain(struct pci_bus *bus)
@@ -43,20 +52,32 @@ static inline int pci_proc_domain(struct pci_bus *bus)
}
#endif
+#ifdef CONFIG_PCI_MSI
+static inline void *_pci_root_bus_fwnode(struct pci_bus *bus)
+{
+ return to_pci_sysdata(bus)->fwnode;
+}
+
+#define pci_root_bus_fwnode _pci_root_bus_fwnode
+#endif
+
+#if IS_ENABLED(CONFIG_VMD)
+static inline bool is_vmd(struct pci_bus *bus)
+{
+ return to_pci_sysdata(bus)->vmd_dev != NULL;
+}
+#else
+#define is_vmd(bus) false
+#endif /* CONFIG_VMD */
+
/* Can be used to override the logic in pci_scan_bus for skipping
already-configured bus numbers - to be used for buggy BIOSes
or architectures with incomplete PCI setup by the loader */
extern unsigned int pcibios_assign_all_busses(void);
extern int pci_legacy_init(void);
-# ifdef CONFIG_ACPI
-# define x86_default_pci_init pci_acpi_init
-# else
-# define x86_default_pci_init pci_legacy_init
-# endif
#else
-# define pcibios_assign_all_busses() 0
-# define x86_default_pci_init NULL
+static inline int pcibios_assign_all_busses(void) { return 0; }
#endif
extern unsigned long pci_mem_start;
@@ -66,91 +87,30 @@ extern unsigned long pci_mem_start;
#define PCIBIOS_MIN_CARDBUS_IO 0x4000
extern int pcibios_enabled;
-void pcibios_config_init(void);
-struct pci_bus *pcibios_scan_root(int bus);
+void pcibios_scan_root(int bus);
-void pcibios_set_master(struct pci_dev *dev);
-void pcibios_penalize_isa_irq(int irq, int active);
struct irq_routing_table *pcibios_get_irq_routing_table(void);
int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
+bool pci_dev_has_default_msi_parent_domain(struct pci_dev *dev);
#define HAVE_PCI_MMAP
-extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
- enum pci_mmap_state mmap_state,
- int write_combine);
-
+#define arch_can_pci_mmap_wc() pat_enabled()
+#define ARCH_GENERIC_PCI_MMAP_RESOURCE
#ifdef CONFIG_PCI
extern void early_quirks(void);
-static inline void pci_dma_burst_advice(struct pci_dev *pdev,
- enum pci_dma_burst_strategy *strat,
- unsigned long *strategy_parameter)
-{
- *strat = PCI_DMA_BURST_INFINITY;
- *strategy_parameter = ~0UL;
-}
#else
static inline void early_quirks(void) { }
#endif
extern void pci_iommu_alloc(void);
-#ifdef CONFIG_PCI_MSI
-/* MSI arch specific hooks */
-static inline int x86_setup_msi_irqs(struct pci_dev *dev, int nvec, int type)
-{
- return x86_msi.setup_msi_irqs(dev, nvec, type);
-}
-
-static inline void x86_teardown_msi_irqs(struct pci_dev *dev)
-{
- x86_msi.teardown_msi_irqs(dev);
-}
-
-static inline void x86_teardown_msi_irq(unsigned int irq)
-{
- x86_msi.teardown_msi_irq(irq);
-}
-#define arch_setup_msi_irqs x86_setup_msi_irqs
-#define arch_teardown_msi_irqs x86_teardown_msi_irqs
-#define arch_teardown_msi_irq x86_teardown_msi_irq
-/* implemented in arch/x86/kernel/apic/io_apic. */
-int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
-void native_teardown_msi_irq(unsigned int irq);
-/* default to the implementation in drivers/lib/msi.c */
-#define HAVE_DEFAULT_MSI_TEARDOWN_IRQS
-void default_teardown_msi_irqs(struct pci_dev *dev);
-#else
-#define native_setup_msi_irqs NULL
-#define native_teardown_msi_irq NULL
-#define default_teardown_msi_irqs NULL
-#endif
-
-#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
-
-#endif /* __KERNEL__ */
-
-#ifdef CONFIG_X86_64
-#include "pci_64.h"
-#endif
-
-void dma32_reserve_bootmem(void);
-
-/* implement the pci_ DMA API in terms of the generic device dma_ one */
-#include <asm-generic/pci-dma-compat.h>
-
-/* generic pci stuff */
-#include <asm-generic/pci.h>
-#define PCIBIOS_MAX_MEM_32 0xffffffff
-
#ifdef CONFIG_NUMA
/* Returns the node based on pci bus */
static inline int __pcibus_to_node(const struct pci_bus *bus)
{
- const struct pci_sysdata *sd = bus->sysdata;
-
- return sd->node;
+ return to_pci_sysdata(bus)->node;
}
static inline const struct cpumask *
@@ -159,9 +119,21 @@ cpumask_of_pcibus(const struct pci_bus *bus)
int node;
node = __pcibus_to_node(bus);
- return (node == -1) ? cpu_online_mask :
+ return (node == NUMA_NO_NODE) ? cpu_online_mask :
cpumask_of_node(node);
}
#endif
+struct pci_setup_rom {
+ struct setup_data data;
+ uint16_t vendor;
+ uint16_t devid;
+ uint64_t pcilen;
+ unsigned long segment;
+ unsigned long bus;
+ unsigned long device;
+ unsigned long function;
+ uint8_t romdata[];
+};
+
#endif /* _ASM_X86_PCI_H */
diff --git a/arch/x86/include/asm/pci_64.h b/arch/x86/include/asm/pci_64.h
deleted file mode 100644
index fe15cfb21b9b..000000000000
--- a/arch/x86/include/asm/pci_64.h
+++ /dev/null
@@ -1,27 +0,0 @@
-#ifndef _ASM_X86_PCI_64_H
-#define _ASM_X86_PCI_64_H
-
-#ifdef __KERNEL__
-
-#ifdef CONFIG_CALGARY_IOMMU
-static inline void *pci_iommu(struct pci_bus *bus)
-{
- struct pci_sysdata *sd = bus->sysdata;
- return sd->iommu;
-}
-
-static inline void set_pci_iommu(struct pci_bus *bus, void *val)
-{
- struct pci_sysdata *sd = bus->sysdata;
- sd->iommu = val;
-}
-#endif /* CONFIG_CALGARY_IOMMU */
-
-extern int (*pci_config_read)(int seg, int bus, int dev, int fn,
- int reg, int len, u32 *value);
-extern int (*pci_config_write)(int seg, int bus, int dev, int fn,
- int reg, int len, u32 value);
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_X86_PCI_64_H */
diff --git a/arch/x86/include/asm/pci_x86.h b/arch/x86/include/asm/pci_x86.h
index 704526734bef..70533fdcbf02 100644
--- a/arch/x86/include/asm/pci_x86.h
+++ b/arch/x86/include/asm/pci_x86.h
@@ -1,15 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Low-Level PCI Access for i386 machines.
*
* (c) 1999 Martin Mares <mj@ucw.cz>
*/
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/spinlock.h>
+
#undef DEBUG
#ifdef DEBUG
-#define DBG(x...) printk(x)
+#define DBG(fmt, ...) printk(fmt, ##__VA_ARGS__)
#else
-#define DBG(x...)
+#define DBG(fmt, ...) \
+do { \
+ if (0) \
+ printk(fmt, ##__VA_ARGS__); \
+} while (0)
#endif
#define PCI_PROBE_BIOS 0x0001
@@ -31,6 +41,9 @@
#define PCI_NOASSIGN_ROMS 0x80000
#define PCI_ROOT_NO_CRS 0x100000
#define PCI_NOASSIGN_BARS 0x200000
+#define PCI_BIG_ROOT_WINDOW 0x400000
+#define PCI_USE_E820 0x800000
+#define PCI_NO_E820 0x1000000
extern unsigned int pci_probe;
extern unsigned long pirq_table_addr;
@@ -44,21 +57,20 @@ enum pci_bf_sort_state {
/* pci-i386.c */
-extern unsigned int pcibios_max_latency;
-
void pcibios_resource_survey(void);
void pcibios_set_cache_line_size(void);
/* pci-pc.c */
extern int pcibios_last_bus;
-extern struct pci_bus *pci_root_bus;
extern struct pci_ops pci_root_ops;
void pcibios_scan_specific_bus(int busn);
/* pci-irq.c */
+struct pci_dev;
+
struct irq_info {
u8 bus, devfn; /* Bus, device and function */
struct {
@@ -82,7 +94,16 @@ struct irq_routing_table {
u32 miniport_data; /* Crap */
u8 rfu[11];
u8 checksum; /* Modulo 256 checksum must give 0 */
- struct irq_info slots[0];
+ struct irq_info slots[];
+} __attribute__((packed));
+
+struct irt_routing_table {
+ u32 signature; /* IRT_SIGNATURE should be here */
+ u8 size; /* Number of entries provided */
+ u8 used; /* Number of entries actually used */
+ u16 exclusive_irqs; /* IRQs devoted exclusively to
+ PCI usage */
+ struct irq_info slots[];
} __attribute__((packed));
extern unsigned int pcibios_irq_mask;
@@ -92,6 +113,8 @@ extern raw_spinlock_t pci_config_lock;
extern int (*pcibios_enable_irq)(struct pci_dev *dev);
extern void (*pcibios_disable_irq)(struct pci_dev *dev);
+extern bool mp_should_keep_irq(struct device *dev);
+
struct pci_raw_ops {
int (*read)(unsigned int domain, unsigned int bus, unsigned int devfn,
int reg, int len, u32 *val);
@@ -99,21 +122,40 @@ struct pci_raw_ops {
int reg, int len, u32 val);
};
-extern struct pci_raw_ops *raw_pci_ops;
-extern struct pci_raw_ops *raw_pci_ext_ops;
+extern const struct pci_raw_ops *raw_pci_ops;
+extern const struct pci_raw_ops *raw_pci_ext_ops;
-extern struct pci_raw_ops pci_direct_conf1;
+extern const struct pci_raw_ops pci_mmcfg;
+extern const struct pci_raw_ops pci_direct_conf1;
extern bool port_cf9_safe;
/* arch_initcall level */
+#ifdef CONFIG_PCI_DIRECT
extern int pci_direct_probe(void);
extern void pci_direct_init(int type);
+#else
+static inline int pci_direct_probe(void) { return -1; }
+static inline void pci_direct_init(int type) { }
+#endif
+
+#ifdef CONFIG_PCI_BIOS
extern void pci_pcbios_init(void);
+#else
+static inline void pci_pcbios_init(void) { }
+#endif
+
extern void __init dmi_check_pciprobe(void);
extern void __init dmi_check_skip_isa_align(void);
/* some common used subsys_initcalls */
+#ifdef CONFIG_PCI
extern int __init pci_acpi_init(void);
+#else
+static inline int __init pci_acpi_init(void)
+{
+ return -EINVAL;
+}
+#endif
extern void __init pcibios_irq_init(void);
extern int __init pcibios_init(void);
extern int pci_legacy_init(void);
@@ -137,18 +179,25 @@ struct pci_mmcfg_region {
extern int __init pci_mmcfg_arch_init(void);
extern void __init pci_mmcfg_arch_free(void);
+extern int pci_mmcfg_arch_map(struct pci_mmcfg_region *cfg);
+extern void pci_mmcfg_arch_unmap(struct pci_mmcfg_region *cfg);
+extern int pci_mmconfig_insert(struct device *dev, u16 seg, u8 start, u8 end,
+ phys_addr_t addr);
+extern int pci_mmconfig_delete(u16 seg, u8 start, u8 end);
extern struct pci_mmcfg_region *pci_mmconfig_lookup(int segment, int bus);
+extern struct pci_mmcfg_region *__init pci_mmconfig_add(int segment, int start,
+ int end, u64 addr);
extern struct list_head pci_mmcfg_list;
#define PCI_MMCFG_BUS_OFFSET(bus) ((bus) << 20)
/*
- * AMD Fam10h CPUs are buggy, and cannot access MMIO config space
- * on their northbrige except through the * %eax register. As such, you MUST
- * NOT use normal IOMEM accesses, you need to only use the magic mmio-config
- * accessor functions.
- * In fact just use pci_config_*, nothing else please.
+ * On AMD Fam10h CPUs, all PCI MMIO configuration space accesses must use
+ * %eax. No other source or target registers may be used. The following
+ * mmio_config_* accessors enforce this. See "BIOS and Kernel Developer's
+ * Guide (BKDG) For AMD Family 10h Processors", rev. 3.48, sec 2.11.1,
+ * "MMIO Configuration Coding Requirements".
*/
static inline unsigned char mmio_config_readb(void __iomem *pos)
{
@@ -199,3 +248,9 @@ static inline void mmio_config_writel(void __iomem *pos, u32 val)
# define x86_default_pci_init_irq NULL
# define x86_default_pci_fixup_irqs NULL
#endif
+
+#if defined(CONFIG_PCI) && defined(CONFIG_ACPI)
+extern bool pci_use_e820;
+#else
+#define pci_use_e820 false
+#endif
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index d475b4398d8b..13c0d63ed55e 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -1,35 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PERCPU_H
#define _ASM_X86_PERCPU_H
#ifdef CONFIG_X86_64
#define __percpu_seg gs
-#define __percpu_mov_op movq
#else
#define __percpu_seg fs
-#define __percpu_mov_op movl
#endif
#ifdef __ASSEMBLY__
-/*
- * PER_CPU finds an address of a per-cpu variable.
- *
- * Args:
- * var - variable name
- * reg - 32bit register
- *
- * The resulting address is stored in the "reg" argument.
- *
- * Example:
- * PER_CPU(cpu_gdt_descr, %ebx)
- */
#ifdef CONFIG_SMP
-#define PER_CPU(var, reg) \
- __percpu_mov_op %__percpu_seg:this_cpu_off, reg; \
- lea var(reg), reg
#define PER_CPU_VAR(var) %__percpu_seg:var
#else /* ! SMP */
-#define PER_CPU(var, reg) __percpu_mov_op $var, reg
#define PER_CPU_VAR(var) var
#endif /* SMP */
@@ -46,26 +29,25 @@
#ifdef CONFIG_SMP
#define __percpu_prefix "%%"__stringify(__percpu_seg)":"
-#define __my_cpu_offset percpu_read(this_cpu_off)
+#define __my_cpu_offset this_cpu_read(this_cpu_off)
/*
* Compared to the generic __my_cpu_offset version, the following
* saves one instruction and avoids clobbering a temp register.
*/
-#define __this_cpu_ptr(ptr) \
+#define arch_raw_cpu_ptr(ptr) \
({ \
unsigned long tcp_ptr__; \
- __verify_pcpu_ptr(ptr); \
- asm volatile("add " __percpu_arg(1) ", %0" \
- : "=r" (tcp_ptr__) \
- : "m" (this_cpu_off), "0" (ptr)); \
+ asm ("add " __percpu_arg(1) ", %0" \
+ : "=r" (tcp_ptr__) \
+ : "m" (this_cpu_off), "0" (ptr)); \
(typeof(*(ptr)) __kernel __force *)tcp_ptr__; \
})
#else
#define __percpu_prefix ""
#endif
-#define __percpu_arg(x) __percpu_prefix "%P" #x
+#define __percpu_arg(x) __percpu_prefix "%" #x
/*
* Initialized pointers to per-cpu variables needed for the boot
@@ -85,183 +67,108 @@
/* For arch-specific code, we can use direct single-insn ops (they
* don't give an lvalue though). */
-extern void __bad_percpu_size(void);
-
-#define percpu_to_op(op, var, val) \
-do { \
- typedef typeof(var) pto_T__; \
- if (0) { \
- pto_T__ pto_tmp__; \
- pto_tmp__ = (val); \
- (void)pto_tmp__; \
- } \
- switch (sizeof(var)) { \
- case 1: \
- asm(op "b %1,"__percpu_arg(0) \
- : "+m" (var) \
- : "qi" ((pto_T__)(val))); \
- break; \
- case 2: \
- asm(op "w %1,"__percpu_arg(0) \
- : "+m" (var) \
- : "ri" ((pto_T__)(val))); \
- break; \
- case 4: \
- asm(op "l %1,"__percpu_arg(0) \
- : "+m" (var) \
- : "ri" ((pto_T__)(val))); \
- break; \
- case 8: \
- asm(op "q %1,"__percpu_arg(0) \
- : "+m" (var) \
- : "re" ((pto_T__)(val))); \
- break; \
- default: __bad_percpu_size(); \
- } \
+
+#define __pcpu_type_1 u8
+#define __pcpu_type_2 u16
+#define __pcpu_type_4 u32
+#define __pcpu_type_8 u64
+
+#define __pcpu_cast_1(val) ((u8)(((unsigned long) val) & 0xff))
+#define __pcpu_cast_2(val) ((u16)(((unsigned long) val) & 0xffff))
+#define __pcpu_cast_4(val) ((u32)(((unsigned long) val) & 0xffffffff))
+#define __pcpu_cast_8(val) ((u64)(val))
+
+#define __pcpu_op1_1(op, dst) op "b " dst
+#define __pcpu_op1_2(op, dst) op "w " dst
+#define __pcpu_op1_4(op, dst) op "l " dst
+#define __pcpu_op1_8(op, dst) op "q " dst
+
+#define __pcpu_op2_1(op, src, dst) op "b " src ", " dst
+#define __pcpu_op2_2(op, src, dst) op "w " src ", " dst
+#define __pcpu_op2_4(op, src, dst) op "l " src ", " dst
+#define __pcpu_op2_8(op, src, dst) op "q " src ", " dst
+
+#define __pcpu_reg_1(mod, x) mod "q" (x)
+#define __pcpu_reg_2(mod, x) mod "r" (x)
+#define __pcpu_reg_4(mod, x) mod "r" (x)
+#define __pcpu_reg_8(mod, x) mod "r" (x)
+
+#define __pcpu_reg_imm_1(x) "qi" (x)
+#define __pcpu_reg_imm_2(x) "ri" (x)
+#define __pcpu_reg_imm_4(x) "ri" (x)
+#define __pcpu_reg_imm_8(x) "re" (x)
+
+#define percpu_to_op(size, qual, op, _var, _val) \
+do { \
+ __pcpu_type_##size pto_val__ = __pcpu_cast_##size(_val); \
+ if (0) { \
+ typeof(_var) pto_tmp__; \
+ pto_tmp__ = (_val); \
+ (void)pto_tmp__; \
+ } \
+ asm qual(__pcpu_op2_##size(op, "%[val]", __percpu_arg([var])) \
+ : [var] "+m" (_var) \
+ : [val] __pcpu_reg_imm_##size(pto_val__)); \
} while (0)
+#define percpu_unary_op(size, qual, op, _var) \
+({ \
+ asm qual (__pcpu_op1_##size(op, __percpu_arg([var])) \
+ : [var] "+m" (_var)); \
+})
+
/*
* Generate a percpu add to memory instruction and optimize code
* if one is added or subtracted.
*/
-#define percpu_add_op(var, val) \
+#define percpu_add_op(size, qual, var, val) \
do { \
- typedef typeof(var) pao_T__; \
const int pao_ID__ = (__builtin_constant_p(val) && \
- ((val) == 1 || (val) == -1)) ? (val) : 0; \
+ ((val) == 1 || (val) == -1)) ? \
+ (int)(val) : 0; \
if (0) { \
- pao_T__ pao_tmp__; \
+ typeof(var) pao_tmp__; \
pao_tmp__ = (val); \
(void)pao_tmp__; \
} \
- switch (sizeof(var)) { \
- case 1: \
- if (pao_ID__ == 1) \
- asm("incb "__percpu_arg(0) : "+m" (var)); \
- else if (pao_ID__ == -1) \
- asm("decb "__percpu_arg(0) : "+m" (var)); \
- else \
- asm("addb %1, "__percpu_arg(0) \
- : "+m" (var) \
- : "qi" ((pao_T__)(val))); \
- break; \
- case 2: \
- if (pao_ID__ == 1) \
- asm("incw "__percpu_arg(0) : "+m" (var)); \
- else if (pao_ID__ == -1) \
- asm("decw "__percpu_arg(0) : "+m" (var)); \
- else \
- asm("addw %1, "__percpu_arg(0) \
- : "+m" (var) \
- : "ri" ((pao_T__)(val))); \
- break; \
- case 4: \
- if (pao_ID__ == 1) \
- asm("incl "__percpu_arg(0) : "+m" (var)); \
- else if (pao_ID__ == -1) \
- asm("decl "__percpu_arg(0) : "+m" (var)); \
- else \
- asm("addl %1, "__percpu_arg(0) \
- : "+m" (var) \
- : "ri" ((pao_T__)(val))); \
- break; \
- case 8: \
- if (pao_ID__ == 1) \
- asm("incq "__percpu_arg(0) : "+m" (var)); \
- else if (pao_ID__ == -1) \
- asm("decq "__percpu_arg(0) : "+m" (var)); \
- else \
- asm("addq %1, "__percpu_arg(0) \
- : "+m" (var) \
- : "re" ((pao_T__)(val))); \
- break; \
- default: __bad_percpu_size(); \
- } \
+ if (pao_ID__ == 1) \
+ percpu_unary_op(size, qual, "inc", var); \
+ else if (pao_ID__ == -1) \
+ percpu_unary_op(size, qual, "dec", var); \
+ else \
+ percpu_to_op(size, qual, "add", var, val); \
} while (0)
-#define percpu_from_op(op, var, constraint) \
-({ \
- typeof(var) pfo_ret__; \
- switch (sizeof(var)) { \
- case 1: \
- asm(op "b "__percpu_arg(1)",%0" \
- : "=q" (pfo_ret__) \
- : constraint); \
- break; \
- case 2: \
- asm(op "w "__percpu_arg(1)",%0" \
- : "=r" (pfo_ret__) \
- : constraint); \
- break; \
- case 4: \
- asm(op "l "__percpu_arg(1)",%0" \
- : "=r" (pfo_ret__) \
- : constraint); \
- break; \
- case 8: \
- asm(op "q "__percpu_arg(1)",%0" \
- : "=r" (pfo_ret__) \
- : constraint); \
- break; \
- default: __bad_percpu_size(); \
- } \
- pfo_ret__; \
+#define percpu_from_op(size, qual, op, _var) \
+({ \
+ __pcpu_type_##size pfo_val__; \
+ asm qual (__pcpu_op2_##size(op, __percpu_arg([var]), "%[val]") \
+ : [val] __pcpu_reg_##size("=", pfo_val__) \
+ : [var] "m" (_var)); \
+ (typeof(_var))(unsigned long) pfo_val__; \
})
-#define percpu_unary_op(op, var) \
-({ \
- switch (sizeof(var)) { \
- case 1: \
- asm(op "b "__percpu_arg(0) \
- : "+m" (var)); \
- break; \
- case 2: \
- asm(op "w "__percpu_arg(0) \
- : "+m" (var)); \
- break; \
- case 4: \
- asm(op "l "__percpu_arg(0) \
- : "+m" (var)); \
- break; \
- case 8: \
- asm(op "q "__percpu_arg(0) \
- : "+m" (var)); \
- break; \
- default: __bad_percpu_size(); \
- } \
+#define percpu_stable_op(size, op, _var) \
+({ \
+ __pcpu_type_##size pfo_val__; \
+ asm(__pcpu_op2_##size(op, __percpu_arg(P[var]), "%[val]") \
+ : [val] __pcpu_reg_##size("=", pfo_val__) \
+ : [var] "p" (&(_var))); \
+ (typeof(_var))(unsigned long) pfo_val__; \
})
/*
* Add return operation
*/
-#define percpu_add_return_op(var, val) \
+#define percpu_add_return_op(size, qual, _var, _val) \
({ \
- typeof(var) paro_ret__ = val; \
- switch (sizeof(var)) { \
- case 1: \
- asm("xaddb %0, "__percpu_arg(1) \
- : "+q" (paro_ret__), "+m" (var) \
- : : "memory"); \
- break; \
- case 2: \
- asm("xaddw %0, "__percpu_arg(1) \
- : "+r" (paro_ret__), "+m" (var) \
- : : "memory"); \
- break; \
- case 4: \
- asm("xaddl %0, "__percpu_arg(1) \
- : "+r" (paro_ret__), "+m" (var) \
- : : "memory"); \
- break; \
- case 8: \
- asm("xaddq %0, "__percpu_arg(1) \
- : "+re" (paro_ret__), "+m" (var) \
- : : "memory"); \
- break; \
- default: __bad_percpu_size(); \
- } \
- paro_ret__ += val; \
- paro_ret__; \
+ __pcpu_type_##size paro_tmp__ = __pcpu_cast_##size(_val); \
+ asm qual (__pcpu_op2_##size("xadd", "%[tmp]", \
+ __percpu_arg([var])) \
+ : [tmp] __pcpu_reg_##size("+", paro_tmp__), \
+ [var] "+m" (_var) \
+ : : "memory"); \
+ (typeof(_var))(unsigned long) (paro_tmp__ + _val); \
})
/*
@@ -269,208 +176,135 @@ do { \
* expensive due to the implied lock prefix. The processor cannot prefetch
* cachelines if xchg is used.
*/
-#define percpu_xchg_op(var, nval) \
+#define percpu_xchg_op(size, qual, _var, _nval) \
({ \
- typeof(var) pxo_ret__; \
- typeof(var) pxo_new__ = (nval); \
- switch (sizeof(var)) { \
- case 1: \
- asm("\n\tmov "__percpu_arg(1)",%%al" \
- "\n1:\tcmpxchgb %2, "__percpu_arg(1) \
- "\n\tjnz 1b" \
- : "=&a" (pxo_ret__), "+m" (var) \
- : "q" (pxo_new__) \
- : "memory"); \
- break; \
- case 2: \
- asm("\n\tmov "__percpu_arg(1)",%%ax" \
- "\n1:\tcmpxchgw %2, "__percpu_arg(1) \
- "\n\tjnz 1b" \
- : "=&a" (pxo_ret__), "+m" (var) \
- : "r" (pxo_new__) \
- : "memory"); \
- break; \
- case 4: \
- asm("\n\tmov "__percpu_arg(1)",%%eax" \
- "\n1:\tcmpxchgl %2, "__percpu_arg(1) \
- "\n\tjnz 1b" \
- : "=&a" (pxo_ret__), "+m" (var) \
- : "r" (pxo_new__) \
- : "memory"); \
- break; \
- case 8: \
- asm("\n\tmov "__percpu_arg(1)",%%rax" \
- "\n1:\tcmpxchgq %2, "__percpu_arg(1) \
- "\n\tjnz 1b" \
- : "=&a" (pxo_ret__), "+m" (var) \
- : "r" (pxo_new__) \
- : "memory"); \
- break; \
- default: __bad_percpu_size(); \
- } \
- pxo_ret__; \
+ __pcpu_type_##size pxo_old__; \
+ __pcpu_type_##size pxo_new__ = __pcpu_cast_##size(_nval); \
+ asm qual (__pcpu_op2_##size("mov", __percpu_arg([var]), \
+ "%[oval]") \
+ "\n1:\t" \
+ __pcpu_op2_##size("cmpxchg", "%[nval]", \
+ __percpu_arg([var])) \
+ "\n\tjnz 1b" \
+ : [oval] "=&a" (pxo_old__), \
+ [var] "+m" (_var) \
+ : [nval] __pcpu_reg_##size(, pxo_new__) \
+ : "memory"); \
+ (typeof(_var))(unsigned long) pxo_old__; \
})
/*
* cmpxchg has no such implied lock semantics as a result it is much
* more efficient for cpu local operations.
*/
-#define percpu_cmpxchg_op(var, oval, nval) \
+#define percpu_cmpxchg_op(size, qual, _var, _oval, _nval) \
({ \
- typeof(var) pco_ret__; \
- typeof(var) pco_old__ = (oval); \
- typeof(var) pco_new__ = (nval); \
- switch (sizeof(var)) { \
- case 1: \
- asm("cmpxchgb %2, "__percpu_arg(1) \
- : "=a" (pco_ret__), "+m" (var) \
- : "q" (pco_new__), "0" (pco_old__) \
- : "memory"); \
- break; \
- case 2: \
- asm("cmpxchgw %2, "__percpu_arg(1) \
- : "=a" (pco_ret__), "+m" (var) \
- : "r" (pco_new__), "0" (pco_old__) \
- : "memory"); \
- break; \
- case 4: \
- asm("cmpxchgl %2, "__percpu_arg(1) \
- : "=a" (pco_ret__), "+m" (var) \
- : "r" (pco_new__), "0" (pco_old__) \
- : "memory"); \
- break; \
- case 8: \
- asm("cmpxchgq %2, "__percpu_arg(1) \
- : "=a" (pco_ret__), "+m" (var) \
- : "r" (pco_new__), "0" (pco_old__) \
- : "memory"); \
- break; \
- default: __bad_percpu_size(); \
- } \
- pco_ret__; \
+ __pcpu_type_##size pco_old__ = __pcpu_cast_##size(_oval); \
+ __pcpu_type_##size pco_new__ = __pcpu_cast_##size(_nval); \
+ asm qual (__pcpu_op2_##size("cmpxchg", "%[nval]", \
+ __percpu_arg([var])) \
+ : [oval] "+a" (pco_old__), \
+ [var] "+m" (_var) \
+ : [nval] __pcpu_reg_##size(, pco_new__) \
+ : "memory"); \
+ (typeof(_var))(unsigned long) pco_old__; \
})
/*
- * percpu_read() makes gcc load the percpu variable every time it is
- * accessed while percpu_read_stable() allows the value to be cached.
- * percpu_read_stable() is more efficient and can be used if its value
+ * this_cpu_read() makes gcc load the percpu variable every time it is
+ * accessed while this_cpu_read_stable() allows the value to be cached.
+ * this_cpu_read_stable() is more efficient and can be used if its value
* is guaranteed to be valid across cpus. The current users include
* get_current() and get_thread_info() both of which are actually
* per-thread variables implemented as per-cpu variables and thus
* stable for the duration of the respective task.
*/
-#define percpu_read(var) percpu_from_op("mov", var, "m" (var))
-#define percpu_read_stable(var) percpu_from_op("mov", var, "p" (&(var)))
-#define percpu_write(var, val) percpu_to_op("mov", var, val)
-#define percpu_add(var, val) percpu_add_op(var, val)
-#define percpu_sub(var, val) percpu_add_op(var, -(val))
-#define percpu_and(var, val) percpu_to_op("and", var, val)
-#define percpu_or(var, val) percpu_to_op("or", var, val)
-#define percpu_xor(var, val) percpu_to_op("xor", var, val)
-#define percpu_inc(var) percpu_unary_op("inc", var)
-
-#define __this_cpu_read_1(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
-#define __this_cpu_read_2(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
-#define __this_cpu_read_4(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
-
-#define __this_cpu_write_1(pcp, val) percpu_to_op("mov", (pcp), val)
-#define __this_cpu_write_2(pcp, val) percpu_to_op("mov", (pcp), val)
-#define __this_cpu_write_4(pcp, val) percpu_to_op("mov", (pcp), val)
-#define __this_cpu_add_1(pcp, val) percpu_add_op((pcp), val)
-#define __this_cpu_add_2(pcp, val) percpu_add_op((pcp), val)
-#define __this_cpu_add_4(pcp, val) percpu_add_op((pcp), val)
-#define __this_cpu_and_1(pcp, val) percpu_to_op("and", (pcp), val)
-#define __this_cpu_and_2(pcp, val) percpu_to_op("and", (pcp), val)
-#define __this_cpu_and_4(pcp, val) percpu_to_op("and", (pcp), val)
-#define __this_cpu_or_1(pcp, val) percpu_to_op("or", (pcp), val)
-#define __this_cpu_or_2(pcp, val) percpu_to_op("or", (pcp), val)
-#define __this_cpu_or_4(pcp, val) percpu_to_op("or", (pcp), val)
-#define __this_cpu_xor_1(pcp, val) percpu_to_op("xor", (pcp), val)
-#define __this_cpu_xor_2(pcp, val) percpu_to_op("xor", (pcp), val)
-#define __this_cpu_xor_4(pcp, val) percpu_to_op("xor", (pcp), val)
+#define this_cpu_read_stable_1(pcp) percpu_stable_op(1, "mov", pcp)
+#define this_cpu_read_stable_2(pcp) percpu_stable_op(2, "mov", pcp)
+#define this_cpu_read_stable_4(pcp) percpu_stable_op(4, "mov", pcp)
+#define this_cpu_read_stable_8(pcp) percpu_stable_op(8, "mov", pcp)
+#define this_cpu_read_stable(pcp) __pcpu_size_call_return(this_cpu_read_stable_, pcp)
+
+#define raw_cpu_read_1(pcp) percpu_from_op(1, , "mov", pcp)
+#define raw_cpu_read_2(pcp) percpu_from_op(2, , "mov", pcp)
+#define raw_cpu_read_4(pcp) percpu_from_op(4, , "mov", pcp)
+
+#define raw_cpu_write_1(pcp, val) percpu_to_op(1, , "mov", (pcp), val)
+#define raw_cpu_write_2(pcp, val) percpu_to_op(2, , "mov", (pcp), val)
+#define raw_cpu_write_4(pcp, val) percpu_to_op(4, , "mov", (pcp), val)
+#define raw_cpu_add_1(pcp, val) percpu_add_op(1, , (pcp), val)
+#define raw_cpu_add_2(pcp, val) percpu_add_op(2, , (pcp), val)
+#define raw_cpu_add_4(pcp, val) percpu_add_op(4, , (pcp), val)
+#define raw_cpu_and_1(pcp, val) percpu_to_op(1, , "and", (pcp), val)
+#define raw_cpu_and_2(pcp, val) percpu_to_op(2, , "and", (pcp), val)
+#define raw_cpu_and_4(pcp, val) percpu_to_op(4, , "and", (pcp), val)
+#define raw_cpu_or_1(pcp, val) percpu_to_op(1, , "or", (pcp), val)
+#define raw_cpu_or_2(pcp, val) percpu_to_op(2, , "or", (pcp), val)
+#define raw_cpu_or_4(pcp, val) percpu_to_op(4, , "or", (pcp), val)
+
/*
- * Generic fallback operations for __this_cpu_xchg_[1-4] are okay and much
- * faster than an xchg with forced lock semantics.
+ * raw_cpu_xchg() can use a load-store since it is not required to be
+ * IRQ-safe.
*/
-#define __this_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval)
-#define __this_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-
-#define this_cpu_read_1(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
-#define this_cpu_read_2(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
-#define this_cpu_read_4(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
-#define this_cpu_write_1(pcp, val) percpu_to_op("mov", (pcp), val)
-#define this_cpu_write_2(pcp, val) percpu_to_op("mov", (pcp), val)
-#define this_cpu_write_4(pcp, val) percpu_to_op("mov", (pcp), val)
-#define this_cpu_add_1(pcp, val) percpu_add_op((pcp), val)
-#define this_cpu_add_2(pcp, val) percpu_add_op((pcp), val)
-#define this_cpu_add_4(pcp, val) percpu_add_op((pcp), val)
-#define this_cpu_and_1(pcp, val) percpu_to_op("and", (pcp), val)
-#define this_cpu_and_2(pcp, val) percpu_to_op("and", (pcp), val)
-#define this_cpu_and_4(pcp, val) percpu_to_op("and", (pcp), val)
-#define this_cpu_or_1(pcp, val) percpu_to_op("or", (pcp), val)
-#define this_cpu_or_2(pcp, val) percpu_to_op("or", (pcp), val)
-#define this_cpu_or_4(pcp, val) percpu_to_op("or", (pcp), val)
-#define this_cpu_xor_1(pcp, val) percpu_to_op("xor", (pcp), val)
-#define this_cpu_xor_2(pcp, val) percpu_to_op("xor", (pcp), val)
-#define this_cpu_xor_4(pcp, val) percpu_to_op("xor", (pcp), val)
-#define this_cpu_xchg_1(pcp, nval) percpu_xchg_op(pcp, nval)
-#define this_cpu_xchg_2(pcp, nval) percpu_xchg_op(pcp, nval)
-#define this_cpu_xchg_4(pcp, nval) percpu_xchg_op(pcp, nval)
-
-#define irqsafe_cpu_add_1(pcp, val) percpu_add_op((pcp), val)
-#define irqsafe_cpu_add_2(pcp, val) percpu_add_op((pcp), val)
-#define irqsafe_cpu_add_4(pcp, val) percpu_add_op((pcp), val)
-#define irqsafe_cpu_and_1(pcp, val) percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_and_2(pcp, val) percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_and_4(pcp, val) percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_or_1(pcp, val) percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_or_2(pcp, val) percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_or_4(pcp, val) percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_xor_1(pcp, val) percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xor_2(pcp, val) percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xor_4(pcp, val) percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xchg_1(pcp, nval) percpu_xchg_op(pcp, nval)
-#define irqsafe_cpu_xchg_2(pcp, nval) percpu_xchg_op(pcp, nval)
-#define irqsafe_cpu_xchg_4(pcp, nval) percpu_xchg_op(pcp, nval)
-
-#ifndef CONFIG_M386
-#define __this_cpu_add_return_1(pcp, val) percpu_add_return_op(pcp, val)
-#define __this_cpu_add_return_2(pcp, val) percpu_add_return_op(pcp, val)
-#define __this_cpu_add_return_4(pcp, val) percpu_add_return_op(pcp, val)
-#define __this_cpu_cmpxchg_1(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#define __this_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#define __this_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-
-#define this_cpu_add_return_1(pcp, val) percpu_add_return_op(pcp, val)
-#define this_cpu_add_return_2(pcp, val) percpu_add_return_op(pcp, val)
-#define this_cpu_add_return_4(pcp, val) percpu_add_return_op(pcp, val)
-#define this_cpu_cmpxchg_1(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#define this_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#define this_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-
-#define irqsafe_cpu_cmpxchg_1(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#define irqsafe_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#define irqsafe_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-#endif /* !CONFIG_M386 */
+#define raw_percpu_xchg_op(var, nval) \
+({ \
+ typeof(var) pxo_ret__ = raw_cpu_read(var); \
+ raw_cpu_write(var, (nval)); \
+ pxo_ret__; \
+})
+
+#define raw_cpu_xchg_1(pcp, val) raw_percpu_xchg_op(pcp, val)
+#define raw_cpu_xchg_2(pcp, val) raw_percpu_xchg_op(pcp, val)
+#define raw_cpu_xchg_4(pcp, val) raw_percpu_xchg_op(pcp, val)
+
+#define this_cpu_read_1(pcp) percpu_from_op(1, volatile, "mov", pcp)
+#define this_cpu_read_2(pcp) percpu_from_op(2, volatile, "mov", pcp)
+#define this_cpu_read_4(pcp) percpu_from_op(4, volatile, "mov", pcp)
+#define this_cpu_write_1(pcp, val) percpu_to_op(1, volatile, "mov", (pcp), val)
+#define this_cpu_write_2(pcp, val) percpu_to_op(2, volatile, "mov", (pcp), val)
+#define this_cpu_write_4(pcp, val) percpu_to_op(4, volatile, "mov", (pcp), val)
+#define this_cpu_add_1(pcp, val) percpu_add_op(1, volatile, (pcp), val)
+#define this_cpu_add_2(pcp, val) percpu_add_op(2, volatile, (pcp), val)
+#define this_cpu_add_4(pcp, val) percpu_add_op(4, volatile, (pcp), val)
+#define this_cpu_and_1(pcp, val) percpu_to_op(1, volatile, "and", (pcp), val)
+#define this_cpu_and_2(pcp, val) percpu_to_op(2, volatile, "and", (pcp), val)
+#define this_cpu_and_4(pcp, val) percpu_to_op(4, volatile, "and", (pcp), val)
+#define this_cpu_or_1(pcp, val) percpu_to_op(1, volatile, "or", (pcp), val)
+#define this_cpu_or_2(pcp, val) percpu_to_op(2, volatile, "or", (pcp), val)
+#define this_cpu_or_4(pcp, val) percpu_to_op(4, volatile, "or", (pcp), val)
+#define this_cpu_xchg_1(pcp, nval) percpu_xchg_op(1, volatile, pcp, nval)
+#define this_cpu_xchg_2(pcp, nval) percpu_xchg_op(2, volatile, pcp, nval)
+#define this_cpu_xchg_4(pcp, nval) percpu_xchg_op(4, volatile, pcp, nval)
+
+#define raw_cpu_add_return_1(pcp, val) percpu_add_return_op(1, , pcp, val)
+#define raw_cpu_add_return_2(pcp, val) percpu_add_return_op(2, , pcp, val)
+#define raw_cpu_add_return_4(pcp, val) percpu_add_return_op(4, , pcp, val)
+#define raw_cpu_cmpxchg_1(pcp, oval, nval) percpu_cmpxchg_op(1, , pcp, oval, nval)
+#define raw_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(2, , pcp, oval, nval)
+#define raw_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(4, , pcp, oval, nval)
+
+#define this_cpu_add_return_1(pcp, val) percpu_add_return_op(1, volatile, pcp, val)
+#define this_cpu_add_return_2(pcp, val) percpu_add_return_op(2, volatile, pcp, val)
+#define this_cpu_add_return_4(pcp, val) percpu_add_return_op(4, volatile, pcp, val)
+#define this_cpu_cmpxchg_1(pcp, oval, nval) percpu_cmpxchg_op(1, volatile, pcp, oval, nval)
+#define this_cpu_cmpxchg_2(pcp, oval, nval) percpu_cmpxchg_op(2, volatile, pcp, oval, nval)
+#define this_cpu_cmpxchg_4(pcp, oval, nval) percpu_cmpxchg_op(4, volatile, pcp, oval, nval)
#ifdef CONFIG_X86_CMPXCHG64
-#define percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2) \
+#define percpu_cmpxchg8b_double(pcp1, pcp2, o1, o2, n1, n2) \
({ \
- char __ret; \
- typeof(o1) __o1 = o1; \
- typeof(o1) __n1 = n1; \
- typeof(o2) __o2 = o2; \
- typeof(o2) __n2 = n2; \
- typeof(o2) __dummy = n2; \
- asm volatile("cmpxchg8b "__percpu_arg(1)"\n\tsetz %0\n\t" \
- : "=a"(__ret), "=m" (pcp1), "=d"(__dummy) \
- : "b"(__n1), "c"(__n2), "a"(__o1), "d"(__o2)); \
+ bool __ret; \
+ typeof(pcp1) __o1 = (o1), __n1 = (n1); \
+ typeof(pcp2) __o2 = (o2), __n2 = (n2); \
+ asm volatile("cmpxchg8b "__percpu_arg(1) \
+ CC_SET(z) \
+ : CC_OUT(z) (__ret), "+m" (pcp1), "+m" (pcp2), "+a" (__o1), "+d" (__o2) \
+ : "b" (__n1), "c" (__n2)); \
__ret; \
})
-#define __this_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2)
-#define this_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2)
-#define irqsafe_cpu_cmpxchg_double_4(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg8b_double(pcp1, o1, o2, n1, n2)
+#define raw_cpu_cmpxchg_double_4 percpu_cmpxchg8b_double
+#define this_cpu_cmpxchg_double_4 percpu_cmpxchg8b_double
#endif /* CONFIG_X86_CMPXCHG64 */
/*
@@ -478,30 +312,23 @@ do { \
* 32 bit must fall back to generic operations.
*/
#ifdef CONFIG_X86_64
-#define __this_cpu_read_8(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
-#define __this_cpu_write_8(pcp, val) percpu_to_op("mov", (pcp), val)
-#define __this_cpu_add_8(pcp, val) percpu_add_op((pcp), val)
-#define __this_cpu_and_8(pcp, val) percpu_to_op("and", (pcp), val)
-#define __this_cpu_or_8(pcp, val) percpu_to_op("or", (pcp), val)
-#define __this_cpu_xor_8(pcp, val) percpu_to_op("xor", (pcp), val)
-#define __this_cpu_add_return_8(pcp, val) percpu_add_return_op(pcp, val)
-
-#define this_cpu_read_8(pcp) percpu_from_op("mov", (pcp), "m"(pcp))
-#define this_cpu_write_8(pcp, val) percpu_to_op("mov", (pcp), val)
-#define this_cpu_add_8(pcp, val) percpu_add_op((pcp), val)
-#define this_cpu_and_8(pcp, val) percpu_to_op("and", (pcp), val)
-#define this_cpu_or_8(pcp, val) percpu_to_op("or", (pcp), val)
-#define this_cpu_xor_8(pcp, val) percpu_to_op("xor", (pcp), val)
-#define this_cpu_add_return_8(pcp, val) percpu_add_return_op(pcp, val)
-#define this_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval)
-#define this_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
-
-#define irqsafe_cpu_add_8(pcp, val) percpu_add_op((pcp), val)
-#define irqsafe_cpu_and_8(pcp, val) percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_or_8(pcp, val) percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_xor_8(pcp, val) percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xchg_8(pcp, nval) percpu_xchg_op(pcp, nval)
-#define irqsafe_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(pcp, oval, nval)
+#define raw_cpu_read_8(pcp) percpu_from_op(8, , "mov", pcp)
+#define raw_cpu_write_8(pcp, val) percpu_to_op(8, , "mov", (pcp), val)
+#define raw_cpu_add_8(pcp, val) percpu_add_op(8, , (pcp), val)
+#define raw_cpu_and_8(pcp, val) percpu_to_op(8, , "and", (pcp), val)
+#define raw_cpu_or_8(pcp, val) percpu_to_op(8, , "or", (pcp), val)
+#define raw_cpu_add_return_8(pcp, val) percpu_add_return_op(8, , pcp, val)
+#define raw_cpu_xchg_8(pcp, nval) raw_percpu_xchg_op(pcp, nval)
+#define raw_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(8, , pcp, oval, nval)
+
+#define this_cpu_read_8(pcp) percpu_from_op(8, volatile, "mov", pcp)
+#define this_cpu_write_8(pcp, val) percpu_to_op(8, volatile, "mov", (pcp), val)
+#define this_cpu_add_8(pcp, val) percpu_add_op(8, volatile, (pcp), val)
+#define this_cpu_and_8(pcp, val) percpu_to_op(8, volatile, "and", (pcp), val)
+#define this_cpu_or_8(pcp, val) percpu_to_op(8, volatile, "or", (pcp), val)
+#define this_cpu_add_return_8(pcp, val) percpu_add_return_op(8, volatile, pcp, val)
+#define this_cpu_xchg_8(pcp, nval) percpu_xchg_op(8, volatile, pcp, nval)
+#define this_cpu_cmpxchg_8(pcp, oval, nval) percpu_cmpxchg_op(8, volatile, pcp, oval, nval)
/*
* Pretty complex macro to generate cmpxchg16 instruction. The instruction
@@ -509,43 +336,61 @@ do { \
* it in software. The address used in the cmpxchg16 instruction must be
* aligned to a 16 byte boundary.
*/
-#define percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2) \
+#define percpu_cmpxchg16b_double(pcp1, pcp2, o1, o2, n1, n2) \
({ \
- char __ret; \
- typeof(o1) __o1 = o1; \
- typeof(o1) __n1 = n1; \
- typeof(o2) __o2 = o2; \
- typeof(o2) __n2 = n2; \
- typeof(o2) __dummy; \
- alternative_io("call this_cpu_cmpxchg16b_emu\n\t" P6_NOP4, \
- "cmpxchg16b " __percpu_prefix "(%%rsi)\n\tsetz %0\n\t", \
+ bool __ret; \
+ typeof(pcp1) __o1 = (o1), __n1 = (n1); \
+ typeof(pcp2) __o2 = (o2), __n2 = (n2); \
+ alternative_io("leaq %P1,%%rsi\n\tcall this_cpu_cmpxchg16b_emu\n\t", \
+ "cmpxchg16b " __percpu_arg(1) "\n\tsetz %0\n\t", \
X86_FEATURE_CX16, \
- ASM_OUTPUT2("=a"(__ret), "=d"(__dummy)), \
- "S" (&pcp1), "b"(__n1), "c"(__n2), \
- "a"(__o1), "d"(__o2) : "memory"); \
+ ASM_OUTPUT2("=a" (__ret), "+m" (pcp1), \
+ "+m" (pcp2), "+d" (__o2)), \
+ "b" (__n1), "c" (__n2), "a" (__o1) : "rsi"); \
__ret; \
})
-#define __this_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2)
-#define this_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2)
-#define irqsafe_cpu_cmpxchg_double_8(pcp1, pcp2, o1, o2, n1, n2) percpu_cmpxchg16b_double(pcp1, o1, o2, n1, n2)
+#define raw_cpu_cmpxchg_double_8 percpu_cmpxchg16b_double
+#define this_cpu_cmpxchg_double_8 percpu_cmpxchg16b_double
#endif
-/* This is not atomic against other CPUs -- CPU preemption needs to be off */
-#define x86_test_and_clear_bit_percpu(bit, var) \
-({ \
- int old__; \
- asm volatile("btr %2,"__percpu_arg(1)"\n\tsbbl %0,%0" \
- : "=r" (old__), "+m" (var) \
- : "dIr" (bit)); \
- old__; \
-})
+static __always_inline bool x86_this_cpu_constant_test_bit(unsigned int nr,
+ const unsigned long __percpu *addr)
+{
+ unsigned long __percpu *a =
+ (unsigned long __percpu *)addr + nr / BITS_PER_LONG;
+
+#ifdef CONFIG_X86_64
+ return ((1UL << (nr % BITS_PER_LONG)) & raw_cpu_read_8(*a)) != 0;
+#else
+ return ((1UL << (nr % BITS_PER_LONG)) & raw_cpu_read_4(*a)) != 0;
+#endif
+}
+
+static inline bool x86_this_cpu_variable_test_bit(int nr,
+ const unsigned long __percpu *addr)
+{
+ bool oldbit;
+
+ asm volatile("btl "__percpu_arg(2)",%1"
+ CC_SET(c)
+ : CC_OUT(c) (oldbit)
+ : "m" (*(unsigned long __percpu *)addr), "Ir" (nr));
+
+ return oldbit;
+}
+
+#define x86_this_cpu_test_bit(nr, addr) \
+ (__builtin_constant_p((nr)) \
+ ? x86_this_cpu_constant_test_bit((nr), (addr)) \
+ : x86_this_cpu_variable_test_bit((nr), (addr)))
+
#include <asm-generic/percpu.h>
/* We can use this directly for local CPU (faster). */
-DECLARE_PER_CPU(unsigned long, this_cpu_off);
+DECLARE_PER_CPU_READ_MOSTLY(unsigned long, this_cpu_off);
#endif /* !__ASSEMBLY__ */
@@ -563,6 +408,12 @@ DECLARE_PER_CPU(unsigned long, this_cpu_off);
{ [0 ... NR_CPUS-1] = _initvalue }; \
__typeof__(_type) *_name##_early_ptr __refdata = _name##_early_map
+#define DEFINE_EARLY_PER_CPU_READ_MOSTLY(_type, _name, _initvalue) \
+ DEFINE_PER_CPU_READ_MOSTLY(_type, _name) = _initvalue; \
+ __typeof__(_type) _name##_early_map[NR_CPUS] __initdata = \
+ { [0 ... NR_CPUS-1] = _initvalue }; \
+ __typeof__(_type) *_name##_early_ptr __refdata = _name##_early_map
+
#define EXPORT_EARLY_PER_CPU_SYMBOL(_name) \
EXPORT_PER_CPU_SYMBOL(_name)
@@ -571,6 +422,11 @@ DECLARE_PER_CPU(unsigned long, this_cpu_off);
extern __typeof__(_type) *_name##_early_ptr; \
extern __typeof__(_type) _name##_early_map[]
+#define DECLARE_EARLY_PER_CPU_READ_MOSTLY(_type, _name) \
+ DECLARE_PER_CPU_READ_MOSTLY(_type, _name); \
+ extern __typeof__(_type) *_name##_early_ptr; \
+ extern __typeof__(_type) _name##_early_map[]
+
#define early_per_cpu_ptr(_name) (_name##_early_ptr)
#define early_per_cpu_map(_name, _idx) (_name##_early_map[_idx])
#define early_per_cpu(_name, _cpu) \
@@ -582,12 +438,18 @@ DECLARE_PER_CPU(unsigned long, this_cpu_off);
#define DEFINE_EARLY_PER_CPU(_type, _name, _initvalue) \
DEFINE_PER_CPU(_type, _name) = _initvalue
+#define DEFINE_EARLY_PER_CPU_READ_MOSTLY(_type, _name, _initvalue) \
+ DEFINE_PER_CPU_READ_MOSTLY(_type, _name) = _initvalue
+
#define EXPORT_EARLY_PER_CPU_SYMBOL(_name) \
EXPORT_PER_CPU_SYMBOL(_name)
#define DECLARE_EARLY_PER_CPU(_type, _name) \
DECLARE_PER_CPU(_type, _name)
+#define DECLARE_EARLY_PER_CPU_READ_MOSTLY(_type, _name) \
+ DECLARE_PER_CPU_READ_MOSTLY(_type, _name)
+
#define early_per_cpu(_name, _cpu) per_cpu(_name, _cpu)
#define early_per_cpu_ptr(_name) NULL
/* no early_per_cpu_map() */
diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h
index d9d4dae305f6..abf09882f58b 100644
--- a/arch/x86/include/asm/perf_event.h
+++ b/arch/x86/include/asm/perf_event.h
@@ -1,15 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PERF_EVENT_H
#define _ASM_X86_PERF_EVENT_H
+#include <linux/static_call.h>
+
/*
* Performance event hw details:
*/
-#define X86_PMC_MAX_GENERIC 32
-#define X86_PMC_MAX_FIXED 3
+#define INTEL_PMC_MAX_GENERIC 32
+#define INTEL_PMC_MAX_FIXED 16
+#define INTEL_PMC_IDX_FIXED 32
-#define X86_PMC_IDX_GENERIC 0
-#define X86_PMC_IDX_FIXED 32
#define X86_PMC_IDX_MAX 64
#define MSR_ARCH_PERFMON_PERFCTR0 0xc1
@@ -23,34 +25,104 @@
#define ARCH_PERFMON_EVENTSEL_USR (1ULL << 16)
#define ARCH_PERFMON_EVENTSEL_OS (1ULL << 17)
#define ARCH_PERFMON_EVENTSEL_EDGE (1ULL << 18)
+#define ARCH_PERFMON_EVENTSEL_PIN_CONTROL (1ULL << 19)
#define ARCH_PERFMON_EVENTSEL_INT (1ULL << 20)
#define ARCH_PERFMON_EVENTSEL_ANY (1ULL << 21)
#define ARCH_PERFMON_EVENTSEL_ENABLE (1ULL << 22)
#define ARCH_PERFMON_EVENTSEL_INV (1ULL << 23)
#define ARCH_PERFMON_EVENTSEL_CMASK 0xFF000000ULL
+#define HSW_IN_TX (1ULL << 32)
+#define HSW_IN_TX_CHECKPOINTED (1ULL << 33)
+#define ICL_EVENTSEL_ADAPTIVE (1ULL << 34)
+#define ICL_FIXED_0_ADAPTIVE (1ULL << 32)
+
+#define AMD64_EVENTSEL_INT_CORE_ENABLE (1ULL << 36)
+#define AMD64_EVENTSEL_GUESTONLY (1ULL << 40)
+#define AMD64_EVENTSEL_HOSTONLY (1ULL << 41)
+
+#define AMD64_EVENTSEL_INT_CORE_SEL_SHIFT 37
+#define AMD64_EVENTSEL_INT_CORE_SEL_MASK \
+ (0xFULL << AMD64_EVENTSEL_INT_CORE_SEL_SHIFT)
+
#define AMD64_EVENTSEL_EVENT \
(ARCH_PERFMON_EVENTSEL_EVENT | (0x0FULL << 32))
#define INTEL_ARCH_EVENT_MASK \
(ARCH_PERFMON_EVENTSEL_UMASK | ARCH_PERFMON_EVENTSEL_EVENT)
+#define AMD64_L3_SLICE_SHIFT 48
+#define AMD64_L3_SLICE_MASK \
+ (0xFULL << AMD64_L3_SLICE_SHIFT)
+#define AMD64_L3_SLICEID_MASK \
+ (0x7ULL << AMD64_L3_SLICE_SHIFT)
+
+#define AMD64_L3_THREAD_SHIFT 56
+#define AMD64_L3_THREAD_MASK \
+ (0xFFULL << AMD64_L3_THREAD_SHIFT)
+#define AMD64_L3_F19H_THREAD_MASK \
+ (0x3ULL << AMD64_L3_THREAD_SHIFT)
+
+#define AMD64_L3_EN_ALL_CORES BIT_ULL(47)
+#define AMD64_L3_EN_ALL_SLICES BIT_ULL(46)
+
+#define AMD64_L3_COREID_SHIFT 42
+#define AMD64_L3_COREID_MASK \
+ (0x7ULL << AMD64_L3_COREID_SHIFT)
+
#define X86_RAW_EVENT_MASK \
(ARCH_PERFMON_EVENTSEL_EVENT | \
ARCH_PERFMON_EVENTSEL_UMASK | \
ARCH_PERFMON_EVENTSEL_EDGE | \
ARCH_PERFMON_EVENTSEL_INV | \
ARCH_PERFMON_EVENTSEL_CMASK)
+#define X86_ALL_EVENT_FLAGS \
+ (ARCH_PERFMON_EVENTSEL_EDGE | \
+ ARCH_PERFMON_EVENTSEL_INV | \
+ ARCH_PERFMON_EVENTSEL_CMASK | \
+ ARCH_PERFMON_EVENTSEL_ANY | \
+ ARCH_PERFMON_EVENTSEL_PIN_CONTROL | \
+ HSW_IN_TX | \
+ HSW_IN_TX_CHECKPOINTED)
#define AMD64_RAW_EVENT_MASK \
(X86_RAW_EVENT_MASK | \
AMD64_EVENTSEL_EVENT)
+#define AMD64_RAW_EVENT_MASK_NB \
+ (AMD64_EVENTSEL_EVENT | \
+ ARCH_PERFMON_EVENTSEL_UMASK)
+
+#define AMD64_PERFMON_V2_EVENTSEL_EVENT_NB \
+ (AMD64_EVENTSEL_EVENT | \
+ GENMASK_ULL(37, 36))
-#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL 0x3c
+#define AMD64_PERFMON_V2_EVENTSEL_UMASK_NB \
+ (ARCH_PERFMON_EVENTSEL_UMASK | \
+ GENMASK_ULL(27, 24))
+
+#define AMD64_PERFMON_V2_RAW_EVENT_MASK_NB \
+ (AMD64_PERFMON_V2_EVENTSEL_EVENT_NB | \
+ AMD64_PERFMON_V2_EVENTSEL_UMASK_NB)
+
+#define AMD64_NUM_COUNTERS 4
+#define AMD64_NUM_COUNTERS_CORE 6
+#define AMD64_NUM_COUNTERS_NB 4
+
+#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL 0x3c
#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8)
-#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX 0
+#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX 0
#define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT \
(1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX))
-#define ARCH_PERFMON_BRANCH_MISSES_RETIRED 6
+#define ARCH_PERFMON_BRANCH_MISSES_RETIRED 6
+#define ARCH_PERFMON_EVENTS_COUNT 7
+
+#define PEBS_DATACFG_MEMINFO BIT_ULL(0)
+#define PEBS_DATACFG_GP BIT_ULL(1)
+#define PEBS_DATACFG_XMMS BIT_ULL(2)
+#define PEBS_DATACFG_LBRS BIT_ULL(3)
+#define PEBS_DATACFG_LBR_SHIFT 24
+
+/* Steal the highest bit of pebs_data_cfg for SW usage */
+#define PEBS_UPDATE_DS_SW BIT_ULL(63)
/*
* Intel "Architectural Performance Monitoring" CPUID
@@ -66,77 +138,371 @@ union cpuid10_eax {
unsigned int full;
};
+union cpuid10_ebx {
+ struct {
+ unsigned int no_unhalted_core_cycles:1;
+ unsigned int no_instructions_retired:1;
+ unsigned int no_unhalted_reference_cycles:1;
+ unsigned int no_llc_reference:1;
+ unsigned int no_llc_misses:1;
+ unsigned int no_branch_instruction_retired:1;
+ unsigned int no_branch_misses_retired:1;
+ } split;
+ unsigned int full;
+};
+
union cpuid10_edx {
struct {
unsigned int num_counters_fixed:5;
unsigned int bit_width_fixed:8;
- unsigned int reserved:19;
+ unsigned int reserved1:2;
+ unsigned int anythread_deprecated:1;
+ unsigned int reserved2:16;
} split;
unsigned int full;
};
+/*
+ * Intel "Architectural Performance Monitoring extension" CPUID
+ * detection/enumeration details:
+ */
+#define ARCH_PERFMON_EXT_LEAF 0x00000023
+#define ARCH_PERFMON_NUM_COUNTER_LEAF_BIT 0x1
+#define ARCH_PERFMON_NUM_COUNTER_LEAF 0x1
+
+/*
+ * Intel Architectural LBR CPUID detection/enumeration details:
+ */
+union cpuid28_eax {
+ struct {
+ /* Supported LBR depth values */
+ unsigned int lbr_depth_mask:8;
+ unsigned int reserved:22;
+ /* Deep C-state Reset */
+ unsigned int lbr_deep_c_reset:1;
+ /* IP values contain LIP */
+ unsigned int lbr_lip:1;
+ } split;
+ unsigned int full;
+};
+
+union cpuid28_ebx {
+ struct {
+ /* CPL Filtering Supported */
+ unsigned int lbr_cpl:1;
+ /* Branch Filtering Supported */
+ unsigned int lbr_filter:1;
+ /* Call-stack Mode Supported */
+ unsigned int lbr_call_stack:1;
+ } split;
+ unsigned int full;
+};
+
+union cpuid28_ecx {
+ struct {
+ /* Mispredict Bit Supported */
+ unsigned int lbr_mispred:1;
+ /* Timed LBRs Supported */
+ unsigned int lbr_timed_lbr:1;
+ /* Branch Type Field Supported */
+ unsigned int lbr_br_type:1;
+ } split;
+ unsigned int full;
+};
+
+/*
+ * AMD "Extended Performance Monitoring and Debug" CPUID
+ * detection/enumeration details:
+ */
+union cpuid_0x80000022_ebx {
+ struct {
+ /* Number of Core Performance Counters */
+ unsigned int num_core_pmc:4;
+ /* Number of available LBR Stack Entries */
+ unsigned int lbr_v2_stack_sz:6;
+ /* Number of Data Fabric Counters */
+ unsigned int num_df_pmc:6;
+ } split;
+ unsigned int full;
+};
+
+struct x86_pmu_capability {
+ int version;
+ int num_counters_gp;
+ int num_counters_fixed;
+ int bit_width_gp;
+ int bit_width_fixed;
+ unsigned int events_mask;
+ int events_mask_len;
+ unsigned int pebs_ept :1;
+};
/*
* Fixed-purpose performance events:
*/
+/* RDPMC offset for Fixed PMCs */
+#define INTEL_PMC_FIXED_RDPMC_BASE (1 << 30)
+#define INTEL_PMC_FIXED_RDPMC_METRICS (1 << 29)
+
/*
- * All 3 fixed-mode PMCs are configured via this single MSR:
+ * All the fixed-mode PMCs are configured via this single MSR:
*/
-#define MSR_ARCH_PERFMON_FIXED_CTR_CTRL 0x38d
+#define MSR_ARCH_PERFMON_FIXED_CTR_CTRL 0x38d
/*
- * The counts are available in three separate MSRs:
+ * There is no event-code assigned to the fixed-mode PMCs.
+ *
+ * For a fixed-mode PMC, which has an equivalent event on a general-purpose
+ * PMC, the event-code of the equivalent event is used for the fixed-mode PMC,
+ * e.g., Instr_Retired.Any and CPU_CLK_Unhalted.Core.
+ *
+ * For a fixed-mode PMC, which doesn't have an equivalent event, a
+ * pseudo-encoding is used, e.g., CPU_CLK_Unhalted.Ref and TOPDOWN.SLOTS.
+ * The pseudo event-code for a fixed-mode PMC must be 0x00.
+ * The pseudo umask-code is 0xX. The X equals the index of the fixed
+ * counter + 1, e.g., the fixed counter 2 has the pseudo-encoding 0x0300.
+ *
+ * The counts are available in separate MSRs:
*/
/* Instr_Retired.Any: */
-#define MSR_ARCH_PERFMON_FIXED_CTR0 0x309
-#define X86_PMC_IDX_FIXED_INSTRUCTIONS (X86_PMC_IDX_FIXED + 0)
+#define MSR_ARCH_PERFMON_FIXED_CTR0 0x309
+#define INTEL_PMC_IDX_FIXED_INSTRUCTIONS (INTEL_PMC_IDX_FIXED + 0)
/* CPU_CLK_Unhalted.Core: */
-#define MSR_ARCH_PERFMON_FIXED_CTR1 0x30a
-#define X86_PMC_IDX_FIXED_CPU_CYCLES (X86_PMC_IDX_FIXED + 1)
+#define MSR_ARCH_PERFMON_FIXED_CTR1 0x30a
+#define INTEL_PMC_IDX_FIXED_CPU_CYCLES (INTEL_PMC_IDX_FIXED + 1)
+
+/* CPU_CLK_Unhalted.Ref: event=0x00,umask=0x3 (pseudo-encoding) */
+#define MSR_ARCH_PERFMON_FIXED_CTR2 0x30b
+#define INTEL_PMC_IDX_FIXED_REF_CYCLES (INTEL_PMC_IDX_FIXED + 2)
+#define INTEL_PMC_MSK_FIXED_REF_CYCLES (1ULL << INTEL_PMC_IDX_FIXED_REF_CYCLES)
-/* CPU_CLK_Unhalted.Ref: */
-#define MSR_ARCH_PERFMON_FIXED_CTR2 0x30b
-#define X86_PMC_IDX_FIXED_BUS_CYCLES (X86_PMC_IDX_FIXED + 2)
+/* TOPDOWN.SLOTS: event=0x00,umask=0x4 (pseudo-encoding) */
+#define MSR_ARCH_PERFMON_FIXED_CTR3 0x30c
+#define INTEL_PMC_IDX_FIXED_SLOTS (INTEL_PMC_IDX_FIXED + 3)
+#define INTEL_PMC_MSK_FIXED_SLOTS (1ULL << INTEL_PMC_IDX_FIXED_SLOTS)
+
+static inline bool use_fixed_pseudo_encoding(u64 code)
+{
+ return !(code & 0xff);
+}
/*
* We model BTS tracing as another fixed-mode PMC.
*
- * We choose a value in the middle of the fixed event range, since lower
+ * We choose the value 47 for the fixed index of BTS, since lower
* values are used by actual fixed events and higher values are used
* to indicate other overflow conditions in the PERF_GLOBAL_STATUS msr.
*/
-#define X86_PMC_IDX_FIXED_BTS (X86_PMC_IDX_FIXED + 16)
+#define INTEL_PMC_IDX_FIXED_BTS (INTEL_PMC_IDX_FIXED + 15)
-/* IbsFetchCtl bits/masks */
+/*
+ * The PERF_METRICS MSR is modeled as several magic fixed-mode PMCs, one for
+ * each TopDown metric event.
+ *
+ * Internally the TopDown metric events are mapped to the FxCtr 3 (SLOTS).
+ */
+#define INTEL_PMC_IDX_METRIC_BASE (INTEL_PMC_IDX_FIXED + 16)
+#define INTEL_PMC_IDX_TD_RETIRING (INTEL_PMC_IDX_METRIC_BASE + 0)
+#define INTEL_PMC_IDX_TD_BAD_SPEC (INTEL_PMC_IDX_METRIC_BASE + 1)
+#define INTEL_PMC_IDX_TD_FE_BOUND (INTEL_PMC_IDX_METRIC_BASE + 2)
+#define INTEL_PMC_IDX_TD_BE_BOUND (INTEL_PMC_IDX_METRIC_BASE + 3)
+#define INTEL_PMC_IDX_TD_HEAVY_OPS (INTEL_PMC_IDX_METRIC_BASE + 4)
+#define INTEL_PMC_IDX_TD_BR_MISPREDICT (INTEL_PMC_IDX_METRIC_BASE + 5)
+#define INTEL_PMC_IDX_TD_FETCH_LAT (INTEL_PMC_IDX_METRIC_BASE + 6)
+#define INTEL_PMC_IDX_TD_MEM_BOUND (INTEL_PMC_IDX_METRIC_BASE + 7)
+#define INTEL_PMC_IDX_METRIC_END INTEL_PMC_IDX_TD_MEM_BOUND
+#define INTEL_PMC_MSK_TOPDOWN ((0xffull << INTEL_PMC_IDX_METRIC_BASE) | \
+ INTEL_PMC_MSK_FIXED_SLOTS)
+
+/*
+ * There is no event-code assigned to the TopDown events.
+ *
+ * For the slots event, use the pseudo code of the fixed counter 3.
+ *
+ * For the metric events, the pseudo event-code is 0x00.
+ * The pseudo umask-code starts from the middle of the pseudo event
+ * space, 0x80.
+ */
+#define INTEL_TD_SLOTS 0x0400 /* TOPDOWN.SLOTS */
+/* Level 1 metrics */
+#define INTEL_TD_METRIC_RETIRING 0x8000 /* Retiring metric */
+#define INTEL_TD_METRIC_BAD_SPEC 0x8100 /* Bad speculation metric */
+#define INTEL_TD_METRIC_FE_BOUND 0x8200 /* FE bound metric */
+#define INTEL_TD_METRIC_BE_BOUND 0x8300 /* BE bound metric */
+/* Level 2 metrics */
+#define INTEL_TD_METRIC_HEAVY_OPS 0x8400 /* Heavy Operations metric */
+#define INTEL_TD_METRIC_BR_MISPREDICT 0x8500 /* Branch Mispredict metric */
+#define INTEL_TD_METRIC_FETCH_LAT 0x8600 /* Fetch Latency metric */
+#define INTEL_TD_METRIC_MEM_BOUND 0x8700 /* Memory bound metric */
+
+#define INTEL_TD_METRIC_MAX INTEL_TD_METRIC_MEM_BOUND
+#define INTEL_TD_METRIC_NUM 8
+
+static inline bool is_metric_idx(int idx)
+{
+ return (unsigned)(idx - INTEL_PMC_IDX_METRIC_BASE) < INTEL_TD_METRIC_NUM;
+}
+
+static inline bool is_topdown_idx(int idx)
+{
+ return is_metric_idx(idx) || idx == INTEL_PMC_IDX_FIXED_SLOTS;
+}
+
+#define INTEL_PMC_OTHER_TOPDOWN_BITS(bit) \
+ (~(0x1ull << bit) & INTEL_PMC_MSK_TOPDOWN)
+
+#define GLOBAL_STATUS_COND_CHG BIT_ULL(63)
+#define GLOBAL_STATUS_BUFFER_OVF_BIT 62
+#define GLOBAL_STATUS_BUFFER_OVF BIT_ULL(GLOBAL_STATUS_BUFFER_OVF_BIT)
+#define GLOBAL_STATUS_UNC_OVF BIT_ULL(61)
+#define GLOBAL_STATUS_ASIF BIT_ULL(60)
+#define GLOBAL_STATUS_COUNTERS_FROZEN BIT_ULL(59)
+#define GLOBAL_STATUS_LBRS_FROZEN_BIT 58
+#define GLOBAL_STATUS_LBRS_FROZEN BIT_ULL(GLOBAL_STATUS_LBRS_FROZEN_BIT)
+#define GLOBAL_STATUS_TRACE_TOPAPMI_BIT 55
+#define GLOBAL_STATUS_TRACE_TOPAPMI BIT_ULL(GLOBAL_STATUS_TRACE_TOPAPMI_BIT)
+#define GLOBAL_STATUS_PERF_METRICS_OVF_BIT 48
+
+#define GLOBAL_CTRL_EN_PERF_METRICS 48
+/*
+ * We model guest LBR event tracing as another fixed-mode PMC like BTS.
+ *
+ * We choose bit 58 because it's used to indicate LBR stack frozen state
+ * for architectural perfmon v4, also we unconditionally mask that bit in
+ * the handle_pmi_common(), so it'll never be set in the overflow handling.
+ *
+ * With this fake counter assigned, the guest LBR event user (such as KVM),
+ * can program the LBR registers on its own, and we don't actually do anything
+ * with then in the host context.
+ */
+#define INTEL_PMC_IDX_FIXED_VLBR (GLOBAL_STATUS_LBRS_FROZEN_BIT)
+
+/*
+ * Pseudo-encoding the guest LBR event as event=0x00,umask=0x1b,
+ * since it would claim bit 58 which is effectively Fixed26.
+ */
+#define INTEL_FIXED_VLBR_EVENT 0x1b00
+
+/*
+ * Adaptive PEBS v4
+ */
+
+struct pebs_basic {
+ u64 format_size;
+ u64 ip;
+ u64 applicable_counters;
+ u64 tsc;
+};
+
+struct pebs_meminfo {
+ u64 address;
+ u64 aux;
+ u64 latency;
+ u64 tsx_tuning;
+};
+
+struct pebs_gprs {
+ u64 flags, ip, ax, cx, dx, bx, sp, bp, si, di;
+ u64 r8, r9, r10, r11, r12, r13, r14, r15;
+};
+
+struct pebs_xmm {
+ u64 xmm[16*2]; /* two entries for each register */
+};
+
+/*
+ * AMD Extended Performance Monitoring and Debug cpuid feature detection
+ */
+#define EXT_PERFMON_DEBUG_FEATURES 0x80000022
+
+/*
+ * IBS cpuid feature detection
+ */
+
+#define IBS_CPUID_FEATURES 0x8000001b
+
+/*
+ * Same bit mask as for IBS cpuid feature flags (Fn8000_001B_EAX), but
+ * bit 0 is used to indicate the existence of IBS.
+ */
+#define IBS_CAPS_AVAIL (1U<<0)
+#define IBS_CAPS_FETCHSAM (1U<<1)
+#define IBS_CAPS_OPSAM (1U<<2)
+#define IBS_CAPS_RDWROPCNT (1U<<3)
+#define IBS_CAPS_OPCNT (1U<<4)
+#define IBS_CAPS_BRNTRGT (1U<<5)
+#define IBS_CAPS_OPCNTEXT (1U<<6)
+#define IBS_CAPS_RIPINVALIDCHK (1U<<7)
+#define IBS_CAPS_OPBRNFUSE (1U<<8)
+#define IBS_CAPS_FETCHCTLEXTD (1U<<9)
+#define IBS_CAPS_OPDATA4 (1U<<10)
+#define IBS_CAPS_ZEN4 (1U<<11)
+
+#define IBS_CAPS_DEFAULT (IBS_CAPS_AVAIL \
+ | IBS_CAPS_FETCHSAM \
+ | IBS_CAPS_OPSAM)
+
+/*
+ * IBS APIC setup
+ */
+#define IBSCTL 0x1cc
+#define IBSCTL_LVT_OFFSET_VALID (1ULL<<8)
+#define IBSCTL_LVT_OFFSET_MASK 0x0F
+
+/* IBS fetch bits/masks */
+#define IBS_FETCH_L3MISSONLY (1ULL<<59)
#define IBS_FETCH_RAND_EN (1ULL<<57)
#define IBS_FETCH_VAL (1ULL<<49)
#define IBS_FETCH_ENABLE (1ULL<<48)
#define IBS_FETCH_CNT 0xFFFF0000ULL
#define IBS_FETCH_MAX_CNT 0x0000FFFFULL
-/* IbsOpCtl bits */
+/*
+ * IBS op bits/masks
+ * The lower 7 bits of the current count are random bits
+ * preloaded by hardware and ignored in software
+ */
+#define IBS_OP_CUR_CNT (0xFFF80ULL<<32)
+#define IBS_OP_CUR_CNT_RAND (0x0007FULL<<32)
#define IBS_OP_CNT_CTL (1ULL<<19)
#define IBS_OP_VAL (1ULL<<18)
#define IBS_OP_ENABLE (1ULL<<17)
+#define IBS_OP_L3MISSONLY (1ULL<<16)
#define IBS_OP_MAX_CNT 0x0000FFFFULL
#define IBS_OP_MAX_CNT_EXT 0x007FFFFFULL /* not a register bit mask */
+#define IBS_OP_MAX_CNT_EXT_MASK (0x7FULL<<20) /* separate upper 7 bits */
+#define IBS_RIP_INVALID (1ULL<<38)
+
+#ifdef CONFIG_X86_LOCAL_APIC
+extern u32 get_ibs_caps(void);
+#else
+static inline u32 get_ibs_caps(void) { return 0; }
+#endif
#ifdef CONFIG_PERF_EVENTS
extern void perf_events_lapic_init(void);
-#define PERF_EVENT_INDEX_OFFSET 0
-
/*
- * Abuse bit 3 of the cpu eflags register to indicate proper PEBS IP fixups.
- * This flag is otherwise unused and ABI specified to be 0, so nobody should
- * care what we do with it.
+ * Abuse bits {3,5} of the cpu eflags register. These flags are otherwise
+ * unused and ABI specified to be 0, so nobody should care what we do with
+ * them.
+ *
+ * EXACT - the IP points to the exact instruction that triggered the
+ * event (HW bugs exempt).
+ * VM - original X86_VM_MASK; see set_linear_ip().
*/
#define PERF_EFLAGS_EXACT (1UL << 3)
+#define PERF_EFLAGS_VM (1UL << 5)
struct pt_regs;
+struct x86_perf_regs {
+ struct pt_regs regs;
+ u64 *xmm_regs;
+};
+
extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
extern unsigned long perf_misc_flags(struct pt_regs *regs);
#define perf_misc_flags(regs) perf_misc_flags(regs)
@@ -149,13 +515,92 @@ extern unsigned long perf_misc_flags(struct pt_regs *regs);
*/
#define perf_arch_fetch_caller_regs(regs, __ip) { \
(regs)->ip = (__ip); \
- (regs)->bp = caller_frame_pointer(); \
+ (regs)->sp = (unsigned long)__builtin_frame_address(0); \
(regs)->cs = __KERNEL_CS; \
regs->flags = 0; \
}
+struct perf_guest_switch_msr {
+ unsigned msr;
+ u64 host, guest;
+};
+
+struct x86_pmu_lbr {
+ unsigned int nr;
+ unsigned int from;
+ unsigned int to;
+ unsigned int info;
+};
+
+extern void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap);
+extern u64 perf_get_hw_event_config(int hw_event);
+extern void perf_check_microcode(void);
+extern void perf_clear_dirty_counters(void);
+extern int x86_perf_rdpmc_index(struct perf_event *event);
#else
+static inline void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap)
+{
+ memset(cap, 0, sizeof(*cap));
+}
+
+static inline u64 perf_get_hw_event_config(int hw_event)
+{
+ return 0;
+}
+
static inline void perf_events_lapic_init(void) { }
+static inline void perf_check_microcode(void) { }
#endif
+#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_INTEL)
+extern struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr, void *data);
+extern void x86_perf_get_lbr(struct x86_pmu_lbr *lbr);
+#else
+struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr, void *data);
+static inline void x86_perf_get_lbr(struct x86_pmu_lbr *lbr)
+{
+ memset(lbr, 0, sizeof(*lbr));
+}
+#endif
+
+#ifdef CONFIG_CPU_SUP_INTEL
+ extern void intel_pt_handle_vmx(int on);
+#else
+static inline void intel_pt_handle_vmx(int on)
+{
+
+}
+#endif
+
+#if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_AMD)
+ extern void amd_pmu_enable_virt(void);
+ extern void amd_pmu_disable_virt(void);
+
+#if defined(CONFIG_PERF_EVENTS_AMD_BRS)
+
+#define PERF_NEEDS_LOPWR_CB 1
+
+/*
+ * architectural low power callback impacts
+ * drivers/acpi/processor_idle.c
+ * drivers/acpi/acpi_pad.c
+ */
+extern void perf_amd_brs_lopwr_cb(bool lopwr_in);
+
+DECLARE_STATIC_CALL(perf_lopwr_cb, perf_amd_brs_lopwr_cb);
+
+static __always_inline void perf_lopwr_cb(bool lopwr_in)
+{
+ static_call_mod(perf_lopwr_cb)(lopwr_in);
+}
+
+#endif /* PERF_NEEDS_LOPWR_CB */
+
+#else
+ static inline void amd_pmu_enable_virt(void) { }
+ static inline void amd_pmu_disable_virt(void) { }
+#endif
+
+#define arch_perf_out_copy_user copy_from_user_nmi
+
#endif /* _ASM_X86_PERF_EVENT_H */
diff --git a/arch/x86/include/asm/perf_event_p4.h b/arch/x86/include/asm/perf_event_p4.h
index 56fd9e3abbda..94de1a05aeba 100644
--- a/arch/x86/include/asm/perf_event_p4.h
+++ b/arch/x86/include/asm/perf_event_p4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Netburst Performance Events (P4, old Xeon)
*/
@@ -24,45 +25,45 @@
#define ARCH_P4_CNTRVAL_MASK ((1ULL << ARCH_P4_CNTRVAL_BITS) - 1)
#define ARCH_P4_UNFLAGGED_BIT ((1ULL) << (ARCH_P4_CNTRVAL_BITS - 1))
-#define P4_ESCR_EVENT_MASK 0x7e000000U
+#define P4_ESCR_EVENT_MASK 0x7e000000ULL
#define P4_ESCR_EVENT_SHIFT 25
-#define P4_ESCR_EVENTMASK_MASK 0x01fffe00U
+#define P4_ESCR_EVENTMASK_MASK 0x01fffe00ULL
#define P4_ESCR_EVENTMASK_SHIFT 9
-#define P4_ESCR_TAG_MASK 0x000001e0U
+#define P4_ESCR_TAG_MASK 0x000001e0ULL
#define P4_ESCR_TAG_SHIFT 5
-#define P4_ESCR_TAG_ENABLE 0x00000010U
-#define P4_ESCR_T0_OS 0x00000008U
-#define P4_ESCR_T0_USR 0x00000004U
-#define P4_ESCR_T1_OS 0x00000002U
-#define P4_ESCR_T1_USR 0x00000001U
+#define P4_ESCR_TAG_ENABLE 0x00000010ULL
+#define P4_ESCR_T0_OS 0x00000008ULL
+#define P4_ESCR_T0_USR 0x00000004ULL
+#define P4_ESCR_T1_OS 0x00000002ULL
+#define P4_ESCR_T1_USR 0x00000001ULL
#define P4_ESCR_EVENT(v) ((v) << P4_ESCR_EVENT_SHIFT)
#define P4_ESCR_EMASK(v) ((v) << P4_ESCR_EVENTMASK_SHIFT)
#define P4_ESCR_TAG(v) ((v) << P4_ESCR_TAG_SHIFT)
-#define P4_CCCR_OVF 0x80000000U
-#define P4_CCCR_CASCADE 0x40000000U
-#define P4_CCCR_OVF_PMI_T0 0x04000000U
-#define P4_CCCR_OVF_PMI_T1 0x08000000U
-#define P4_CCCR_FORCE_OVF 0x02000000U
-#define P4_CCCR_EDGE 0x01000000U
-#define P4_CCCR_THRESHOLD_MASK 0x00f00000U
+#define P4_CCCR_OVF 0x80000000ULL
+#define P4_CCCR_CASCADE 0x40000000ULL
+#define P4_CCCR_OVF_PMI_T0 0x04000000ULL
+#define P4_CCCR_OVF_PMI_T1 0x08000000ULL
+#define P4_CCCR_FORCE_OVF 0x02000000ULL
+#define P4_CCCR_EDGE 0x01000000ULL
+#define P4_CCCR_THRESHOLD_MASK 0x00f00000ULL
#define P4_CCCR_THRESHOLD_SHIFT 20
-#define P4_CCCR_COMPLEMENT 0x00080000U
-#define P4_CCCR_COMPARE 0x00040000U
-#define P4_CCCR_ESCR_SELECT_MASK 0x0000e000U
+#define P4_CCCR_COMPLEMENT 0x00080000ULL
+#define P4_CCCR_COMPARE 0x00040000ULL
+#define P4_CCCR_ESCR_SELECT_MASK 0x0000e000ULL
#define P4_CCCR_ESCR_SELECT_SHIFT 13
-#define P4_CCCR_ENABLE 0x00001000U
-#define P4_CCCR_THREAD_SINGLE 0x00010000U
-#define P4_CCCR_THREAD_BOTH 0x00020000U
-#define P4_CCCR_THREAD_ANY 0x00030000U
-#define P4_CCCR_RESERVED 0x00000fffU
+#define P4_CCCR_ENABLE 0x00001000ULL
+#define P4_CCCR_THREAD_SINGLE 0x00010000ULL
+#define P4_CCCR_THREAD_BOTH 0x00020000ULL
+#define P4_CCCR_THREAD_ANY 0x00030000ULL
+#define P4_CCCR_RESERVED 0x00000fffULL
#define P4_CCCR_THRESHOLD(v) ((v) << P4_CCCR_THRESHOLD_SHIFT)
#define P4_CCCR_ESEL(v) ((v) << P4_CCCR_ESCR_SELECT_SHIFT)
#define P4_GEN_ESCR_EMASK(class, name, bit) \
- class##__##name = ((1 << bit) << P4_ESCR_EVENTMASK_SHIFT)
+ class##__##name = ((1ULL << bit) << P4_ESCR_EVENTMASK_SHIFT)
#define P4_ESCR_EMASK_BIT(class, name) class##__##name
/*
@@ -102,6 +103,14 @@
#define P4_CONFIG_HT (1ULL << P4_CONFIG_HT_SHIFT)
/*
+ * If an event has alias it should be marked
+ * with a special bit. (Don't forget to check
+ * P4_PEBS_CONFIG_MASK and related bits on
+ * modification.)
+ */
+#define P4_CONFIG_ALIASABLE (1ULL << 9)
+
+/*
* The bits we allow to pass for RAW events
*/
#define P4_CONFIG_MASK_ESCR \
@@ -123,6 +132,31 @@
(p4_config_pack_escr(P4_CONFIG_MASK_ESCR)) | \
(p4_config_pack_cccr(P4_CONFIG_MASK_CCCR))
+/*
+ * In case of event aliasing we need to preserve some
+ * caller bits, otherwise the mapping won't be complete.
+ */
+#define P4_CONFIG_EVENT_ALIAS_MASK \
+ (p4_config_pack_escr(P4_CONFIG_MASK_ESCR) | \
+ p4_config_pack_cccr(P4_CCCR_EDGE | \
+ P4_CCCR_THRESHOLD_MASK | \
+ P4_CCCR_COMPLEMENT | \
+ P4_CCCR_COMPARE))
+
+#define P4_CONFIG_EVENT_ALIAS_IMMUTABLE_BITS \
+ ((P4_CONFIG_HT) | \
+ p4_config_pack_escr(P4_ESCR_T0_OS | \
+ P4_ESCR_T0_USR | \
+ P4_ESCR_T1_OS | \
+ P4_ESCR_T1_USR) | \
+ p4_config_pack_cccr(P4_CCCR_OVF | \
+ P4_CCCR_CASCADE | \
+ P4_CCCR_FORCE_OVF | \
+ P4_CCCR_THREAD_ANY | \
+ P4_CCCR_OVF_PMI_T0 | \
+ P4_CCCR_OVF_PMI_T1 | \
+ P4_CONFIG_ALIASABLE))
+
static inline bool p4_is_event_cascaded(u64 config)
{
u32 cccr = p4_config_unpack_cccr(config);
@@ -156,7 +190,7 @@ static inline int p4_ht_thread(int cpu)
{
#ifdef CONFIG_SMP
if (smp_num_siblings == 2)
- return cpu != cpumask_first(__get_cpu_var(cpu_sibling_map));
+ return cpu != cpumask_first(this_cpu_cpumask_var_ptr(cpu_sibling_map));
#endif
return 0;
}
@@ -751,17 +785,17 @@ enum P4_ESCR_EMASKS {
* Note we have UOP and PEBS bits reserved for now
* just in case if we will need them once
*/
-#define P4_PEBS_CONFIG_ENABLE (1 << 7)
-#define P4_PEBS_CONFIG_UOP_TAG (1 << 8)
-#define P4_PEBS_CONFIG_METRIC_MASK 0x3f
-#define P4_PEBS_CONFIG_MASK 0xff
+#define P4_PEBS_CONFIG_ENABLE (1ULL << 7)
+#define P4_PEBS_CONFIG_UOP_TAG (1ULL << 8)
+#define P4_PEBS_CONFIG_METRIC_MASK 0x3FLL
+#define P4_PEBS_CONFIG_MASK 0xFFLL
/*
* mem: Only counters MSR_IQ_COUNTER4 (16) and
* MSR_IQ_COUNTER5 (17) are allowed for PEBS sampling
*/
-#define P4_PEBS_ENABLE 0x02000000U
-#define P4_PEBS_ENABLE_UOP_TAG 0x01000000U
+#define P4_PEBS_ENABLE 0x02000000ULL
+#define P4_PEBS_ENABLE_UOP_TAG 0x01000000ULL
#define p4_config_unpack_metric(v) (((u64)(v)) & P4_PEBS_CONFIG_METRIC_MASK)
#define p4_config_unpack_pebs(v) (((u64)(v)) & P4_PEBS_CONFIG_MASK)
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index b4389a468fb6..c7ec5bb88334 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGALLOC_H
#define _ASM_X86_PGALLOC_H
@@ -5,9 +6,13 @@
#include <linux/mm.h> /* for struct page */
#include <linux/pagemap.h>
+#define __HAVE_ARCH_PTE_ALLOC_ONE
+#define __HAVE_ARCH_PGD_FREE
+#include <asm-generic/pgalloc.h>
+
static inline int __paravirt_pgd_alloc(struct mm_struct *mm) { return 0; }
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_XXL
#include <asm/paravirt.h>
#else
#define paravirt_pgd_alloc(mm) __paravirt_pgd_alloc(mm)
@@ -17,9 +22,11 @@ static inline void paravirt_alloc_pmd(struct mm_struct *mm, unsigned long pfn) {
static inline void paravirt_alloc_pmd_clone(unsigned long pfn, unsigned long clonepfn,
unsigned long start, unsigned long count) {}
static inline void paravirt_alloc_pud(struct mm_struct *mm, unsigned long pfn) {}
+static inline void paravirt_alloc_p4d(struct mm_struct *mm, unsigned long pfn) {}
static inline void paravirt_release_pte(unsigned long pfn) {}
static inline void paravirt_release_pmd(unsigned long pfn) {}
static inline void paravirt_release_pud(unsigned long pfn) {}
+static inline void paravirt_release_p4d(unsigned long pfn) {}
#endif
/*
@@ -27,29 +34,24 @@ static inline void paravirt_release_pud(unsigned long pfn) {}
*/
extern gfp_t __userpte_alloc_gfp;
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+/*
+ * Instead of one PGD, we acquire two PGDs. Being order-1, it is
+ * both 8k in size and 8k-aligned. That lets us just flip bit 12
+ * in a pointer to swap between the two 4k halves.
+ */
+#define PGD_ALLOCATION_ORDER 1
+#else
+#define PGD_ALLOCATION_ORDER 0
+#endif
+
/*
* Allocate and free page tables.
*/
extern pgd_t *pgd_alloc(struct mm_struct *);
extern void pgd_free(struct mm_struct *mm, pgd_t *pgd);
-extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
-extern pgtable_t pte_alloc_one(struct mm_struct *, unsigned long);
-
-/* Should really implement gc for free page table pages. This could be
- done with a reference count in struct page. */
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
- BUG_ON((unsigned long)pte & (PAGE_SIZE-1));
- free_page((unsigned long)pte);
-}
-
-static inline void pte_free(struct mm_struct *mm, struct page *pte)
-{
- pgtable_page_dtor(pte);
- __free_page(pte);
-}
+extern pgtable_t pte_alloc_one(struct mm_struct *);
extern void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte);
@@ -66,6 +68,13 @@ static inline void pmd_populate_kernel(struct mm_struct *mm,
set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
}
+static inline void pmd_populate_kernel_safe(struct mm_struct *mm,
+ pmd_t *pmd, pte_t *pte)
+{
+ paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT);
+ set_pmd_safe(pmd, __pmd(__pa(pte) | _PAGE_TABLE));
+}
+
static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
struct page *pte)
{
@@ -75,20 +84,7 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
set_pmd(pmd, __pmd(((pteval_t)pfn << PAGE_SHIFT) | _PAGE_TABLE));
}
-#define pmd_pgtable(pmd) pmd_page(pmd)
-
-#if PAGETABLE_LEVELS > 2
-static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
-{
- return (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
-}
-
-static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
-{
- BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
- free_page((unsigned long)pmd);
-}
-
+#if CONFIG_PGTABLE_LEVELS > 2
extern void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd);
static inline void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd,
@@ -105,24 +101,25 @@ static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
set_pud(pud, __pud(_PAGE_TABLE | __pa(pmd)));
}
-#endif /* CONFIG_X86_PAE */
-#if PAGETABLE_LEVELS > 3
-static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud)
+static inline void pud_populate_safe(struct mm_struct *mm, pud_t *pud, pmd_t *pmd)
{
- paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
- set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(pud)));
+ paravirt_alloc_pmd(mm, __pa(pmd) >> PAGE_SHIFT);
+ set_pud_safe(pud, __pud(_PAGE_TABLE | __pa(pmd)));
}
+#endif /* CONFIG_X86_PAE */
-static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
+#if CONFIG_PGTABLE_LEVELS > 3
+static inline void p4d_populate(struct mm_struct *mm, p4d_t *p4d, pud_t *pud)
{
- return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
+ paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
+ set_p4d(p4d, __p4d(_PAGE_TABLE | __pa(pud)));
}
-static inline void pud_free(struct mm_struct *mm, pud_t *pud)
+static inline void p4d_populate_safe(struct mm_struct *mm, p4d_t *p4d, pud_t *pud)
{
- BUG_ON((unsigned long)pud & (PAGE_SIZE-1));
- free_page((unsigned long)pud);
+ paravirt_alloc_pud(mm, __pa(pud) >> PAGE_SHIFT);
+ set_p4d_safe(p4d, __p4d(_PAGE_TABLE | __pa(pud)));
}
extern void ___pud_free_tlb(struct mmu_gather *tlb, pud_t *pud);
@@ -133,7 +130,52 @@ static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
___pud_free_tlb(tlb, pud);
}
-#endif /* PAGETABLE_LEVELS > 3 */
-#endif /* PAGETABLE_LEVELS > 2 */
+#if CONFIG_PGTABLE_LEVELS > 4
+static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, p4d_t *p4d)
+{
+ if (!pgtable_l5_enabled())
+ return;
+ paravirt_alloc_p4d(mm, __pa(p4d) >> PAGE_SHIFT);
+ set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(p4d)));
+}
+
+static inline void pgd_populate_safe(struct mm_struct *mm, pgd_t *pgd, p4d_t *p4d)
+{
+ if (!pgtable_l5_enabled())
+ return;
+ paravirt_alloc_p4d(mm, __pa(p4d) >> PAGE_SHIFT);
+ set_pgd_safe(pgd, __pgd(_PAGE_TABLE | __pa(p4d)));
+}
+
+static inline p4d_t *p4d_alloc_one(struct mm_struct *mm, unsigned long addr)
+{
+ gfp_t gfp = GFP_KERNEL_ACCOUNT;
+
+ if (mm == &init_mm)
+ gfp &= ~__GFP_ACCOUNT;
+ return (p4d_t *)get_zeroed_page(gfp);
+}
+
+static inline void p4d_free(struct mm_struct *mm, p4d_t *p4d)
+{
+ if (!pgtable_l5_enabled())
+ return;
+
+ BUG_ON((unsigned long)p4d & (PAGE_SIZE-1));
+ free_page((unsigned long)p4d);
+}
+
+extern void ___p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d);
+
+static inline void __p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d,
+ unsigned long address)
+{
+ if (pgtable_l5_enabled())
+ ___p4d_free_tlb(tlb, p4d);
+}
+
+#endif /* CONFIG_PGTABLE_LEVELS > 4 */
+#endif /* CONFIG_PGTABLE_LEVELS > 3 */
+#endif /* CONFIG_PGTABLE_LEVELS > 2 */
#endif /* _ASM_X86_PGALLOC_H */
diff --git a/arch/x86/include/asm/pgtable-2level.h b/arch/x86/include/asm/pgtable-2level.h
index 98391db840c6..e9482a11ac52 100644
--- a/arch/x86/include/asm/pgtable-2level.h
+++ b/arch/x86/include/asm/pgtable-2level.h
@@ -1,10 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGTABLE_2LEVEL_H
#define _ASM_X86_PGTABLE_2LEVEL_H
#define pte_ERROR(e) \
- printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, (e).pte_low)
+ pr_err("%s:%d: bad pte %08lx\n", __FILE__, __LINE__, (e).pte_low)
#define pgd_ERROR(e) \
- printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
+ pr_err("%s:%d: bad pgd %08lx\n", __FILE__, __LINE__, pgd_val(e))
/*
* Certain architectures need to do special things when PTEs
@@ -21,6 +22,10 @@ static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
*pmdp = pmd;
}
+static inline void native_set_pud(pud_t *pudp, pud_t pud)
+{
+}
+
static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
{
native_set_pte(ptep, pte);
@@ -31,6 +36,10 @@ static inline void native_pmd_clear(pmd_t *pmdp)
native_set_pmd(pmdp, __pmd(0));
}
+static inline void native_pud_clear(pud_t *pudp)
+{
+}
+
static inline void native_pte_clear(struct mm_struct *mm,
unsigned long addr, pte_t *xp)
{
@@ -55,57 +64,68 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
#define native_pmdp_get_and_clear(xp) native_local_pmdp_get_and_clear(xp)
#endif
-/*
- * Bits _PAGE_BIT_PRESENT, _PAGE_BIT_FILE and _PAGE_BIT_PROTNONE are taken,
- * split up the 29 bits of offset into this range:
- */
-#define PTE_FILE_MAX_BITS 29
-#define PTE_FILE_SHIFT1 (_PAGE_BIT_PRESENT + 1)
-#if _PAGE_BIT_FILE < _PAGE_BIT_PROTNONE
-#define PTE_FILE_SHIFT2 (_PAGE_BIT_FILE + 1)
-#define PTE_FILE_SHIFT3 (_PAGE_BIT_PROTNONE + 1)
+#ifdef CONFIG_SMP
+static inline pud_t native_pudp_get_and_clear(pud_t *xp)
+{
+ return __pud(xchg((pudval_t *)xp, 0));
+}
#else
-#define PTE_FILE_SHIFT2 (_PAGE_BIT_PROTNONE + 1)
-#define PTE_FILE_SHIFT3 (_PAGE_BIT_FILE + 1)
+#define native_pudp_get_and_clear(xp) native_local_pudp_get_and_clear(xp)
#endif
-#define PTE_FILE_BITS1 (PTE_FILE_SHIFT2 - PTE_FILE_SHIFT1 - 1)
-#define PTE_FILE_BITS2 (PTE_FILE_SHIFT3 - PTE_FILE_SHIFT2 - 1)
-
-#define pte_to_pgoff(pte) \
- ((((pte).pte_low >> PTE_FILE_SHIFT1) \
- & ((1U << PTE_FILE_BITS1) - 1)) \
- + ((((pte).pte_low >> PTE_FILE_SHIFT2) \
- & ((1U << PTE_FILE_BITS2) - 1)) << PTE_FILE_BITS1) \
- + (((pte).pte_low >> PTE_FILE_SHIFT3) \
- << (PTE_FILE_BITS1 + PTE_FILE_BITS2)))
-
-#define pgoff_to_pte(off) \
- ((pte_t) { .pte_low = \
- (((off) & ((1U << PTE_FILE_BITS1) - 1)) << PTE_FILE_SHIFT1) \
- + ((((off) >> PTE_FILE_BITS1) & ((1U << PTE_FILE_BITS2) - 1)) \
- << PTE_FILE_SHIFT2) \
- + (((off) >> (PTE_FILE_BITS1 + PTE_FILE_BITS2)) \
- << PTE_FILE_SHIFT3) \
- + _PAGE_FILE })
-
-/* Encode and de-code a swap entry */
-#if _PAGE_BIT_FILE < _PAGE_BIT_PROTNONE
-#define SWP_TYPE_BITS (_PAGE_BIT_FILE - _PAGE_BIT_PRESENT - 1)
+
+/* Bit manipulation helper on pte/pgoff entry */
+static inline unsigned long pte_bitop(unsigned long value, unsigned int rightshift,
+ unsigned long mask, unsigned int leftshift)
+{
+ return ((value >> rightshift) & mask) << leftshift;
+}
+
+/*
+ * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that
+ * are !pte_none() && !pte_present().
+ *
+ * Format of swap PTEs:
+ *
+ * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * <----------------- offset ------------------> 0 E <- type --> 0
+ *
+ * E is the exclusive marker that is not stored in swap entries.
+ */
+#define SWP_TYPE_BITS 5
+#define _SWP_TYPE_MASK ((1U << SWP_TYPE_BITS) - 1)
+#define _SWP_TYPE_SHIFT (_PAGE_BIT_PRESENT + 1)
#define SWP_OFFSET_SHIFT (_PAGE_BIT_PROTNONE + 1)
-#else
-#define SWP_TYPE_BITS (_PAGE_BIT_PROTNONE - _PAGE_BIT_PRESENT - 1)
-#define SWP_OFFSET_SHIFT (_PAGE_BIT_FILE + 1)
-#endif
-#define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > SWP_TYPE_BITS)
+#define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > 5)
-#define __swp_type(x) (((x).val >> (_PAGE_BIT_PRESENT + 1)) \
- & ((1U << SWP_TYPE_BITS) - 1))
+#define __swp_type(x) (((x).val >> _SWP_TYPE_SHIFT) \
+ & _SWP_TYPE_MASK)
#define __swp_offset(x) ((x).val >> SWP_OFFSET_SHIFT)
#define __swp_entry(type, offset) ((swp_entry_t) { \
- ((type) << (_PAGE_BIT_PRESENT + 1)) \
+ (((type) & _SWP_TYPE_MASK) << _SWP_TYPE_SHIFT) \
| ((offset) << SWP_OFFSET_SHIFT) })
#define __pte_to_swp_entry(pte) ((swp_entry_t) { (pte).pte_low })
#define __swp_entry_to_pte(x) ((pte_t) { .pte = (x).val })
+/* We borrow bit 7 to store the exclusive marker in swap PTEs. */
+#define _PAGE_SWP_EXCLUSIVE _PAGE_PSE
+
+/* No inverted PFNs on 2 level page tables */
+
+static inline u64 protnone_mask(u64 val)
+{
+ return 0;
+}
+
+static inline u64 flip_protnone_guard(u64 oldval, u64 val, u64 mask)
+{
+ return val;
+}
+
+static inline bool __pte_needs_invert(u64 val)
+{
+ return false;
+}
+
#endif /* _ASM_X86_PGTABLE_2LEVEL_H */
diff --git a/arch/x86/include/asm/pgtable-2level_types.h b/arch/x86/include/asm/pgtable-2level_types.h
index daacc23e3fb9..7f6ccff0ba72 100644
--- a/arch/x86/include/asm/pgtable-2level_types.h
+++ b/arch/x86/include/asm/pgtable-2level_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGTABLE_2LEVEL_DEFS_H
#define _ASM_X86_PGTABLE_2LEVEL_DEFS_H
@@ -7,6 +8,7 @@
typedef unsigned long pteval_t;
typedef unsigned long pmdval_t;
typedef unsigned long pudval_t;
+typedef unsigned long p4dval_t;
typedef unsigned long pgdval_t;
typedef unsigned long pgprotval_t;
@@ -17,7 +19,8 @@ typedef union {
#endif /* !__ASSEMBLY__ */
#define SHARED_KERNEL_PMD 0
-#define PAGETABLE_LEVELS 2
+
+#define ARCH_PAGE_TABLE_SYNC_MASK PGTBL_PMD_MODIFIED
/*
* traditional i386 two-level paging structure:
@@ -34,4 +37,7 @@ typedef union {
#define PTRS_PER_PTE 1024
+/* This covers all VMSPLIT_* and VMSPLIT_*_OPT variants */
+#define PGD_KERNEL_START (CONFIG_PAGE_OFFSET >> PGDIR_SHIFT)
+
#endif /* _ASM_X86_PGTABLE_2LEVEL_DEFS_H */
diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h
index effff47a3c82..9e7c0b719c3c 100644
--- a/arch/x86/include/asm/pgtable-3level.h
+++ b/arch/x86/include/asm/pgtable-3level.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGTABLE_3LEVEL_H
#define _ASM_X86_PGTABLE_3LEVEL_H
@@ -9,16 +10,24 @@
*/
#define pte_ERROR(e) \
- printk("%s:%d: bad pte %p(%08lx%08lx).\n", \
+ pr_err("%s:%d: bad pte %p(%08lx%08lx)\n", \
__FILE__, __LINE__, &(e), (e).pte_high, (e).pte_low)
#define pmd_ERROR(e) \
- printk("%s:%d: bad pmd %p(%016Lx).\n", \
+ pr_err("%s:%d: bad pmd %p(%016Lx)\n", \
__FILE__, __LINE__, &(e), pmd_val(e))
#define pgd_ERROR(e) \
- printk("%s:%d: bad pgd %p(%016Lx).\n", \
+ pr_err("%s:%d: bad pgd %p(%016Lx)\n", \
__FILE__, __LINE__, &(e), pgd_val(e))
-/* Rules for using set_pte: the pte being assigned *must* be
+#define pxx_xchg64(_pxx, _ptr, _val) ({ \
+ _pxx##val_t *_p = (_pxx##val_t *)_ptr; \
+ _pxx##val_t _o = *_p; \
+ do { } while (!try_cmpxchg64(_p, &_o, (_val))); \
+ native_make_##_pxx(_o); \
+})
+
+/*
+ * Rules for using set_pte: the pte being assigned *must* be
* either not present or in a state where the hardware will
* not attempt to update the pte. In places where this is
* not possible, use pte_get_and_clear to obtain the old pte
@@ -26,24 +35,27 @@
*/
static inline void native_set_pte(pte_t *ptep, pte_t pte)
{
- ptep->pte_high = pte.pte_high;
+ WRITE_ONCE(ptep->pte_high, pte.pte_high);
smp_wmb();
- ptep->pte_low = pte.pte_low;
+ WRITE_ONCE(ptep->pte_low, pte.pte_low);
}
static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
{
- set_64bit((unsigned long long *)(ptep), native_pte_val(pte));
+ pxx_xchg64(pte, ptep, native_pte_val(pte));
}
static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
{
- set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd));
+ pxx_xchg64(pmd, pmdp, native_pmd_val(pmd));
}
static inline void native_set_pud(pud_t *pudp, pud_t pud)
{
- set_64bit((unsigned long long *)(pudp), native_pud_val(pud));
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+ pud.p4d.pgd = pti_set_user_pgtbl(&pudp->p4d.pgd, pud.p4d.pgd);
+#endif
+ pxx_xchg64(pud, pudp, native_pud_val(pud));
}
/*
@@ -54,17 +66,20 @@ static inline void native_set_pud(pud_t *pudp, pud_t pud)
static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
- ptep->pte_low = 0;
+ WRITE_ONCE(ptep->pte_low, 0);
smp_wmb();
- ptep->pte_high = 0;
+ WRITE_ONCE(ptep->pte_high, 0);
}
-static inline void native_pmd_clear(pmd_t *pmd)
+static inline void native_pmd_clear(pmd_t *pmdp)
{
- u32 *tmp = (u32 *)pmd;
- *tmp = 0;
+ WRITE_ONCE(pmdp->pmd_low, 0);
smp_wmb();
- *(tmp + 1) = 0;
+ WRITE_ONCE(pmdp->pmd_high, 0);
+}
+
+static inline void native_pud_clear(pud_t *pudp)
+{
}
static inline void pud_clear(pud_t *pudp)
@@ -83,60 +98,112 @@ static inline void pud_clear(pud_t *pudp)
*/
}
+
#ifdef CONFIG_SMP
static inline pte_t native_ptep_get_and_clear(pte_t *ptep)
{
- pte_t res;
+ return pxx_xchg64(pte, ptep, 0ULL);
+}
- /* xchg acts as a barrier before the setting of the high bits */
- res.pte_low = xchg(&ptep->pte_low, 0);
- res.pte_high = ptep->pte_high;
- ptep->pte_high = 0;
+static inline pmd_t native_pmdp_get_and_clear(pmd_t *pmdp)
+{
+ return pxx_xchg64(pmd, pmdp, 0ULL);
+}
- return res;
+static inline pud_t native_pudp_get_and_clear(pud_t *pudp)
+{
+ return pxx_xchg64(pud, pudp, 0ULL);
}
#else
#define native_ptep_get_and_clear(xp) native_local_ptep_get_and_clear(xp)
+#define native_pmdp_get_and_clear(xp) native_local_pmdp_get_and_clear(xp)
+#define native_pudp_get_and_clear(xp) native_local_pudp_get_and_clear(xp)
#endif
-#ifdef CONFIG_SMP
-union split_pmd {
- struct {
- u32 pmd_low;
- u32 pmd_high;
- };
- pmd_t pmd;
-};
-static inline pmd_t native_pmdp_get_and_clear(pmd_t *pmdp)
+#ifndef pmdp_establish
+#define pmdp_establish pmdp_establish
+static inline pmd_t pmdp_establish(struct vm_area_struct *vma,
+ unsigned long address, pmd_t *pmdp, pmd_t pmd)
{
- union split_pmd res, *orig = (union split_pmd *)pmdp;
+ pmd_t old;
+
+ /*
+ * If pmd has present bit cleared we can get away without expensive
+ * cmpxchg64: we can update pmdp half-by-half without racing with
+ * anybody.
+ */
+ if (!(pmd_val(pmd) & _PAGE_PRESENT)) {
+ /* xchg acts as a barrier before setting of the high bits */
+ old.pmd_low = xchg(&pmdp->pmd_low, pmd.pmd_low);
+ old.pmd_high = READ_ONCE(pmdp->pmd_high);
+ WRITE_ONCE(pmdp->pmd_high, pmd.pmd_high);
- /* xchg acts as a barrier before setting of the high bits */
- res.pmd_low = xchg(&orig->pmd_low, 0);
- res.pmd_high = orig->pmd_high;
- orig->pmd_high = 0;
+ return old;
+ }
- return res.pmd;
+ return pxx_xchg64(pmd, pmdp, pmd.pmd);
}
-#else
-#define native_pmdp_get_and_clear(xp) native_local_pmdp_get_and_clear(xp)
#endif
/*
- * Bits 0, 6 and 7 are taken in the low part of the pte,
- * put the 32 bits of offset into the high part.
+ * Encode/decode swap entries and swap PTEs. Swap PTEs are all PTEs that
+ * are !pte_none() && !pte_present().
+ *
+ * Format of swap PTEs:
+ *
+ * 6 6 6 6 5 5 5 5 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 4 3 3 3 3 3 3 3 3
+ * 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2
+ * < type -> <---------------------- offset ----------------------
+ *
+ * 3 3 2 2 2 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1
+ * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
+ * --------------------------------------------> 0 E 0 0 0 0 0 0 0
+ *
+ * E is the exclusive marker that is not stored in swap entries.
+ */
+#define SWP_TYPE_BITS 5
+#define _SWP_TYPE_MASK ((1U << SWP_TYPE_BITS) - 1)
+
+#define SWP_OFFSET_FIRST_BIT (_PAGE_BIT_PROTNONE + 1)
+
+/* We always extract/encode the offset by shifting it all the way up, and then down again */
+#define SWP_OFFSET_SHIFT (SWP_OFFSET_FIRST_BIT + SWP_TYPE_BITS)
+
+#define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > SWP_TYPE_BITS)
+#define __swp_type(x) (((x).val) & _SWP_TYPE_MASK)
+#define __swp_offset(x) ((x).val >> SWP_TYPE_BITS)
+#define __swp_entry(type, offset) ((swp_entry_t){((type) & _SWP_TYPE_MASK) \
+ | (offset) << SWP_TYPE_BITS})
+
+/*
+ * Normally, __swp_entry() converts from arch-independent swp_entry_t to
+ * arch-dependent swp_entry_t, and __swp_entry_to_pte() just stores the result
+ * to pte. But here we have 32bit swp_entry_t and 64bit pte, and need to use the
+ * whole 64 bits. Thus, we shift the "real" arch-dependent conversion to
+ * __swp_entry_to_pte() through the following helper macro based on 64bit
+ * __swp_entry().
*/
-#define pte_to_pgoff(pte) ((pte).pte_high)
-#define pgoff_to_pte(off) \
- ((pte_t) { { .pte_low = _PAGE_FILE, .pte_high = (off) } })
-#define PTE_FILE_MAX_BITS 32
-
-/* Encode and de-code a swap entry */
-#define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > 5)
-#define __swp_type(x) (((x).val) & 0x1f)
-#define __swp_offset(x) ((x).val >> 5)
-#define __swp_entry(type, offset) ((swp_entry_t){(type) | (offset) << 5})
-#define __pte_to_swp_entry(pte) ((swp_entry_t){ (pte).pte_high })
-#define __swp_entry_to_pte(x) ((pte_t){ { .pte_high = (x).val } })
+#define __swp_pteval_entry(type, offset) ((pteval_t) { \
+ (~(pteval_t)(offset) << SWP_OFFSET_SHIFT >> SWP_TYPE_BITS) \
+ | ((pteval_t)(type) << (64 - SWP_TYPE_BITS)) })
+
+#define __swp_entry_to_pte(x) ((pte_t){ .pte = \
+ __swp_pteval_entry(__swp_type(x), __swp_offset(x)) })
+/*
+ * Analogically, __pte_to_swp_entry() doesn't just extract the arch-dependent
+ * swp_entry_t, but also has to convert it from 64bit to the 32bit
+ * intermediate representation, using the following macros based on 64bit
+ * __swp_type() and __swp_offset().
+ */
+#define __pteval_swp_type(x) ((unsigned long)((x).pte >> (64 - SWP_TYPE_BITS)))
+#define __pteval_swp_offset(x) ((unsigned long)(~((x).pte) << SWP_TYPE_BITS >> SWP_OFFSET_SHIFT))
+
+#define __pte_to_swp_entry(pte) (__swp_entry(__pteval_swp_type(pte), \
+ __pteval_swp_offset(pte)))
+
+/* We borrow bit 7 to store the exclusive marker in swap PTEs. */
+#define _PAGE_SWP_EXCLUSIVE _PAGE_PSE
+
+#include <asm/pgtable-invert.h>
#endif /* _ASM_X86_PGTABLE_3LEVEL_H */
diff --git a/arch/x86/include/asm/pgtable-3level_types.h b/arch/x86/include/asm/pgtable-3level_types.h
index 1bd5876c8649..80911349519e 100644
--- a/arch/x86/include/asm/pgtable-3level_types.h
+++ b/arch/x86/include/asm/pgtable-3level_types.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
#define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
@@ -7,6 +8,7 @@
typedef u64 pteval_t;
typedef u64 pmdval_t;
typedef u64 pudval_t;
+typedef u64 p4dval_t;
typedef u64 pgdval_t;
typedef u64 pgprotval_t;
@@ -16,15 +18,18 @@ typedef union {
};
pteval_t pte;
} pte_t;
+
+typedef union {
+ struct {
+ unsigned long pmd_low, pmd_high;
+ };
+ pmdval_t pmd;
+} pmd_t;
#endif /* !__ASSEMBLY__ */
-#ifdef CONFIG_PARAVIRT
-#define SHARED_KERNEL_PMD (pv_info.shared_kernel_pmd)
-#else
-#define SHARED_KERNEL_PMD 1
-#endif
+#define SHARED_KERNEL_PMD (!static_cpu_has(X86_FEATURE_PTI))
-#define PAGETABLE_LEVELS 3
+#define ARCH_PAGE_TABLE_SYNC_MASK (SHARED_KERNEL_PMD ? 0 : PGTBL_PMD_MODIFIED)
/*
* PGDIR_SHIFT determines what a top-level page table entry can map
@@ -44,5 +49,7 @@ typedef union {
*/
#define PTRS_PER_PTE 512
+#define MAX_POSSIBLE_PHYSMEM_BITS 36
+#define PGD_KERNEL_START (CONFIG_PAGE_OFFSET >> PGDIR_SHIFT)
#endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */
diff --git a/arch/x86/include/asm/pgtable-invert.h b/arch/x86/include/asm/pgtable-invert.h
new file mode 100644
index 000000000000..a0c1525f1b6f
--- /dev/null
+++ b/arch/x86/include/asm/pgtable-invert.h
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_PGTABLE_INVERT_H
+#define _ASM_PGTABLE_INVERT_H 1
+
+#ifndef __ASSEMBLY__
+
+/*
+ * A clear pte value is special, and doesn't get inverted.
+ *
+ * Note that even users that only pass a pgprot_t (rather
+ * than a full pte) won't trigger the special zero case,
+ * because even PAGE_NONE has _PAGE_PROTNONE | _PAGE_ACCESSED
+ * set. So the all zero case really is limited to just the
+ * cleared page table entry case.
+ */
+static inline bool __pte_needs_invert(u64 val)
+{
+ return val && !(val & _PAGE_PRESENT);
+}
+
+/* Get a mask to xor with the page table entry to get the correct pfn. */
+static inline u64 protnone_mask(u64 val)
+{
+ return __pte_needs_invert(val) ? ~0ull : 0;
+}
+
+static inline u64 flip_protnone_guard(u64 oldval, u64 val, u64 mask)
+{
+ /*
+ * When a PTE transitions from NONE to !NONE or vice-versa
+ * invert the PFN part to stop speculation.
+ * pte_pfn undoes this when needed.
+ */
+ if (__pte_needs_invert(oldval) != __pte_needs_invert(val))
+ val = (val & ~mask) | (~val & mask);
+ return val;
+}
+
+#endif /* __ASSEMBLY__ */
+
+#endif
diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h
index 18601c86fab1..15ae4d6ba476 100644
--- a/arch/x86/include/asm/pgtable.h
+++ b/arch/x86/include/asm/pgtable.h
@@ -1,71 +1,109 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGTABLE_H
#define _ASM_X86_PGTABLE_H
+#include <linux/mem_encrypt.h>
#include <asm/page.h>
-#include <asm/e820.h>
-
#include <asm/pgtable_types.h>
/*
* Macro to mark a page protection value as UC-
*/
-#define pgprot_noncached(prot) \
- ((boot_cpu_data.x86 > 3) \
- ? (__pgprot(pgprot_val(prot) | _PAGE_CACHE_UC_MINUS)) \
+#define pgprot_noncached(prot) \
+ ((boot_cpu_data.x86 > 3) \
+ ? (__pgprot(pgprot_val(prot) | \
+ cachemode2protval(_PAGE_CACHE_MODE_UC_MINUS))) \
: (prot))
#ifndef __ASSEMBLY__
-
+#include <linux/spinlock.h>
#include <asm/x86_init.h>
+#include <asm/pkru.h>
+#include <asm/fpu/api.h>
+#include <asm/coco.h>
+#include <asm-generic/pgtable_uffd.h>
+#include <linux/page_table_check.h>
+
+extern pgd_t early_top_pgt[PTRS_PER_PGD];
+bool __init __early_make_pgtable(unsigned long address, pmdval_t pmd);
+
+void ptdump_walk_pgd_level(struct seq_file *m, struct mm_struct *mm);
+void ptdump_walk_pgd_level_debugfs(struct seq_file *m, struct mm_struct *mm,
+ bool user);
+void ptdump_walk_pgd_level_checkwx(void);
+void ptdump_walk_user_pgd_level_checkwx(void);
+
+/*
+ * Macros to add or remove encryption attribute
+ */
+#define pgprot_encrypted(prot) __pgprot(cc_mkenc(pgprot_val(prot)))
+#define pgprot_decrypted(prot) __pgprot(cc_mkdec(pgprot_val(prot)))
+
+#ifdef CONFIG_DEBUG_WX
+#define debug_checkwx() ptdump_walk_pgd_level_checkwx()
+#define debug_checkwx_user() ptdump_walk_user_pgd_level_checkwx()
+#else
+#define debug_checkwx() do { } while (0)
+#define debug_checkwx_user() do { } while (0)
+#endif
/*
* ZERO_PAGE is a global shared page that is always zero: used
* for zero-mapped memory areas etc..
*/
-extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)];
-#define ZERO_PAGE(vaddr) (virt_to_page(empty_zero_page))
+extern unsigned long empty_zero_page[PAGE_SIZE / sizeof(unsigned long)]
+ __visible;
+#define ZERO_PAGE(vaddr) ((void)(vaddr),virt_to_page(empty_zero_page))
extern spinlock_t pgd_lock;
extern struct list_head pgd_list;
extern struct mm_struct *pgd_page_get_mm(struct page *page);
-#ifdef CONFIG_PARAVIRT
+extern pmdval_t early_pmd_flags;
+
+#ifdef CONFIG_PARAVIRT_XXL
#include <asm/paravirt.h>
-#else /* !CONFIG_PARAVIRT */
+#else /* !CONFIG_PARAVIRT_XXL */
#define set_pte(ptep, pte) native_set_pte(ptep, pte)
-#define set_pte_at(mm, addr, ptep, pte) native_set_pte_at(mm, addr, ptep, pte)
-#define set_pmd_at(mm, addr, pmdp, pmd) native_set_pmd_at(mm, addr, pmdp, pmd)
#define set_pte_atomic(ptep, pte) \
native_set_pte_atomic(ptep, pte)
#define set_pmd(pmdp, pmd) native_set_pmd(pmdp, pmd)
-#ifndef __PAGETABLE_PUD_FOLDED
+#ifndef __PAGETABLE_P4D_FOLDED
#define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd)
-#define pgd_clear(pgd) native_pgd_clear(pgd)
+#define pgd_clear(pgd) (pgtable_l5_enabled() ? native_pgd_clear(pgd) : 0)
+#endif
+
+#ifndef set_p4d
+# define set_p4d(p4dp, p4d) native_set_p4d(p4dp, p4d)
+#endif
+
+#ifndef __PAGETABLE_PUD_FOLDED
+#define p4d_clear(p4d) native_p4d_clear(p4d)
#endif
#ifndef set_pud
# define set_pud(pudp, pud) native_set_pud(pudp, pud)
#endif
-#ifndef __PAGETABLE_PMD_FOLDED
+#ifndef __PAGETABLE_PUD_FOLDED
#define pud_clear(pud) native_pud_clear(pud)
#endif
#define pte_clear(mm, addr, ptep) native_pte_clear(mm, addr, ptep)
#define pmd_clear(pmd) native_pmd_clear(pmd)
-#define pte_update(mm, addr, ptep) do { } while (0)
-#define pte_update_defer(mm, addr, ptep) do { } while (0)
-#define pmd_update(mm, addr, ptep) do { } while (0)
-#define pmd_update_defer(mm, addr, ptep) do { } while (0)
-
#define pgd_val(x) native_pgd_val(x)
#define __pgd(x) native_make_pgd(x)
+#ifndef __PAGETABLE_P4D_FOLDED
+#define p4d_val(x) native_p4d_val(x)
+#define __p4d(x) native_make_p4d(x)
+#endif
+
#ifndef __PAGETABLE_PUD_FOLDED
#define pud_val(x) native_pud_val(x)
#define __pud(x) native_make_pud(x)
@@ -80,8 +118,7 @@ extern struct mm_struct *pgd_page_get_mm(struct page *page);
#define __pte(x) native_make_pte(x)
#define arch_end_context_switch(prev) do {} while(0)
-
-#endif /* CONFIG_PARAVIRT */
+#endif /* CONFIG_PARAVIRT_XXL */
/*
* The following only work if pte_present() is true.
@@ -97,19 +134,30 @@ static inline int pte_young(pte_t pte)
return pte_flags(pte) & _PAGE_ACCESSED;
}
+static inline int pmd_dirty(pmd_t pmd)
+{
+ return pmd_flags(pmd) & _PAGE_DIRTY;
+}
+
+#define pmd_young pmd_young
static inline int pmd_young(pmd_t pmd)
{
return pmd_flags(pmd) & _PAGE_ACCESSED;
}
-static inline int pte_write(pte_t pte)
+static inline int pud_dirty(pud_t pud)
{
- return pte_flags(pte) & _PAGE_RW;
+ return pud_flags(pud) & _PAGE_DIRTY;
}
-static inline int pte_file(pte_t pte)
+static inline int pud_young(pud_t pud)
{
- return pte_flags(pte) & _PAGE_FILE;
+ return pud_flags(pud) & _PAGE_ACCESSED;
+}
+
+static inline int pte_write(pte_t pte)
+{
+ return pte_flags(pte) & _PAGE_RW;
}
static inline int pte_huge(pte_t pte)
@@ -132,39 +180,99 @@ static inline int pte_special(pte_t pte)
return pte_flags(pte) & _PAGE_SPECIAL;
}
+/* Entries that were set to PROT_NONE are inverted */
+
+static inline u64 protnone_mask(u64 val);
+
static inline unsigned long pte_pfn(pte_t pte)
{
- return (pte_val(pte) & PTE_PFN_MASK) >> PAGE_SHIFT;
+ phys_addr_t pfn = pte_val(pte);
+ pfn ^= protnone_mask(pfn);
+ return (pfn & PTE_PFN_MASK) >> PAGE_SHIFT;
}
static inline unsigned long pmd_pfn(pmd_t pmd)
{
- return (pmd_val(pmd) & PTE_PFN_MASK) >> PAGE_SHIFT;
+ phys_addr_t pfn = pmd_val(pmd);
+ pfn ^= protnone_mask(pfn);
+ return (pfn & pmd_pfn_mask(pmd)) >> PAGE_SHIFT;
+}
+
+static inline unsigned long pud_pfn(pud_t pud)
+{
+ phys_addr_t pfn = pud_val(pud);
+ pfn ^= protnone_mask(pfn);
+ return (pfn & pud_pfn_mask(pud)) >> PAGE_SHIFT;
+}
+
+static inline unsigned long p4d_pfn(p4d_t p4d)
+{
+ return (p4d_val(p4d) & p4d_pfn_mask(p4d)) >> PAGE_SHIFT;
+}
+
+static inline unsigned long pgd_pfn(pgd_t pgd)
+{
+ return (pgd_val(pgd) & PTE_PFN_MASK) >> PAGE_SHIFT;
+}
+
+#define p4d_leaf p4d_large
+static inline int p4d_large(p4d_t p4d)
+{
+ /* No 512 GiB pages yet */
+ return 0;
}
#define pte_page(pte) pfn_to_page(pte_pfn(pte))
+#define pmd_leaf pmd_large
static inline int pmd_large(pmd_t pte)
{
- return (pmd_flags(pte) & (_PAGE_PSE | _PAGE_PRESENT)) ==
- (_PAGE_PSE | _PAGE_PRESENT);
+ return pmd_flags(pte) & _PAGE_PSE;
}
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-static inline int pmd_trans_splitting(pmd_t pmd)
+/* NOTE: when predicate huge page, consider also pmd_devmap, or use pmd_large */
+static inline int pmd_trans_huge(pmd_t pmd)
{
- return pmd_val(pmd) & _PAGE_SPLITTING;
+ return (pmd_val(pmd) & (_PAGE_PSE|_PAGE_DEVMAP)) == _PAGE_PSE;
}
-static inline int pmd_trans_huge(pmd_t pmd)
+#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
+static inline int pud_trans_huge(pud_t pud)
{
- return pmd_val(pmd) & _PAGE_PSE;
+ return (pud_val(pud) & (_PAGE_PSE|_PAGE_DEVMAP)) == _PAGE_PSE;
}
+#endif
+#define has_transparent_hugepage has_transparent_hugepage
static inline int has_transparent_hugepage(void)
{
- return cpu_has_pse;
+ return boot_cpu_has(X86_FEATURE_PSE);
}
+
+#ifdef CONFIG_ARCH_HAS_PTE_DEVMAP
+static inline int pmd_devmap(pmd_t pmd)
+{
+ return !!(pmd_val(pmd) & _PAGE_DEVMAP);
+}
+
+#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
+static inline int pud_devmap(pud_t pud)
+{
+ return !!(pud_val(pud) & _PAGE_DEVMAP);
+}
+#else
+static inline int pud_devmap(pud_t pud)
+{
+ return 0;
+}
+#endif
+
+static inline int pgd_devmap(pgd_t pgd)
+{
+ return 0;
+}
+#endif
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
static inline pte_t pte_set_flags(pte_t pte, pteval_t set)
@@ -181,6 +289,44 @@ static inline pte_t pte_clear_flags(pte_t pte, pteval_t clear)
return native_make_pte(v & ~clear);
}
+static inline pte_t pte_wrprotect(pte_t pte)
+{
+ return pte_clear_flags(pte, _PAGE_RW);
+}
+
+#ifdef CONFIG_HAVE_ARCH_USERFAULTFD_WP
+static inline int pte_uffd_wp(pte_t pte)
+{
+ bool wp = pte_flags(pte) & _PAGE_UFFD_WP;
+
+#ifdef CONFIG_DEBUG_VM
+ /*
+ * Having write bit for wr-protect-marked present ptes is fatal,
+ * because it means the uffd-wp bit will be ignored and write will
+ * just go through.
+ *
+ * Use any chance of pgtable walking to verify this (e.g., when
+ * page swapped out or being migrated for all purposes). It means
+ * something is already wrong. Tell the admin even before the
+ * process crashes. We also nail it with wrong pgtable setup.
+ */
+ WARN_ON_ONCE(wp && pte_write(pte));
+#endif
+
+ return wp;
+}
+
+static inline pte_t pte_mkuffd_wp(pte_t pte)
+{
+ return pte_wrprotect(pte_set_flags(pte, _PAGE_UFFD_WP));
+}
+
+static inline pte_t pte_clear_uffd_wp(pte_t pte)
+{
+ return pte_clear_flags(pte, _PAGE_UFFD_WP);
+}
+#endif /* CONFIG_HAVE_ARCH_USERFAULTFD_WP */
+
static inline pte_t pte_mkclean(pte_t pte)
{
return pte_clear_flags(pte, _PAGE_DIRTY);
@@ -191,11 +337,6 @@ static inline pte_t pte_mkold(pte_t pte)
return pte_clear_flags(pte, _PAGE_ACCESSED);
}
-static inline pte_t pte_wrprotect(pte_t pte)
-{
- return pte_clear_flags(pte, _PAGE_RW);
-}
-
static inline pte_t pte_mkexec(pte_t pte)
{
return pte_clear_flags(pte, _PAGE_NX);
@@ -203,7 +344,7 @@ static inline pte_t pte_mkexec(pte_t pte)
static inline pte_t pte_mkdirty(pte_t pte)
{
- return pte_set_flags(pte, _PAGE_DIRTY);
+ return pte_set_flags(pte, _PAGE_DIRTY | _PAGE_SOFT_DIRTY);
}
static inline pte_t pte_mkyoung(pte_t pte)
@@ -241,33 +382,65 @@ static inline pte_t pte_mkspecial(pte_t pte)
return pte_set_flags(pte, _PAGE_SPECIAL);
}
+static inline pte_t pte_mkdevmap(pte_t pte)
+{
+ return pte_set_flags(pte, _PAGE_SPECIAL|_PAGE_DEVMAP);
+}
+
static inline pmd_t pmd_set_flags(pmd_t pmd, pmdval_t set)
{
pmdval_t v = native_pmd_val(pmd);
- return __pmd(v | set);
+ return native_make_pmd(v | set);
}
static inline pmd_t pmd_clear_flags(pmd_t pmd, pmdval_t clear)
{
pmdval_t v = native_pmd_val(pmd);
- return __pmd(v & ~clear);
+ return native_make_pmd(v & ~clear);
+}
+
+static inline pmd_t pmd_wrprotect(pmd_t pmd)
+{
+ return pmd_clear_flags(pmd, _PAGE_RW);
+}
+
+#ifdef CONFIG_HAVE_ARCH_USERFAULTFD_WP
+static inline int pmd_uffd_wp(pmd_t pmd)
+{
+ return pmd_flags(pmd) & _PAGE_UFFD_WP;
+}
+
+static inline pmd_t pmd_mkuffd_wp(pmd_t pmd)
+{
+ return pmd_wrprotect(pmd_set_flags(pmd, _PAGE_UFFD_WP));
+}
+
+static inline pmd_t pmd_clear_uffd_wp(pmd_t pmd)
+{
+ return pmd_clear_flags(pmd, _PAGE_UFFD_WP);
}
+#endif /* CONFIG_HAVE_ARCH_USERFAULTFD_WP */
static inline pmd_t pmd_mkold(pmd_t pmd)
{
return pmd_clear_flags(pmd, _PAGE_ACCESSED);
}
-static inline pmd_t pmd_wrprotect(pmd_t pmd)
+static inline pmd_t pmd_mkclean(pmd_t pmd)
{
- return pmd_clear_flags(pmd, _PAGE_RW);
+ return pmd_clear_flags(pmd, _PAGE_DIRTY);
}
static inline pmd_t pmd_mkdirty(pmd_t pmd)
{
- return pmd_set_flags(pmd, _PAGE_DIRTY);
+ return pmd_set_flags(pmd, _PAGE_DIRTY | _PAGE_SOFT_DIRTY);
+}
+
+static inline pmd_t pmd_mkdevmap(pmd_t pmd)
+{
+ return pmd_set_flags(pmd, _PAGE_DEVMAP);
}
static inline pmd_t pmd_mkhuge(pmd_t pmd)
@@ -285,11 +458,108 @@ static inline pmd_t pmd_mkwrite(pmd_t pmd)
return pmd_set_flags(pmd, _PAGE_RW);
}
-static inline pmd_t pmd_mknotpresent(pmd_t pmd)
+static inline pud_t pud_set_flags(pud_t pud, pudval_t set)
+{
+ pudval_t v = native_pud_val(pud);
+
+ return native_make_pud(v | set);
+}
+
+static inline pud_t pud_clear_flags(pud_t pud, pudval_t clear)
+{
+ pudval_t v = native_pud_val(pud);
+
+ return native_make_pud(v & ~clear);
+}
+
+static inline pud_t pud_mkold(pud_t pud)
+{
+ return pud_clear_flags(pud, _PAGE_ACCESSED);
+}
+
+static inline pud_t pud_mkclean(pud_t pud)
+{
+ return pud_clear_flags(pud, _PAGE_DIRTY);
+}
+
+static inline pud_t pud_wrprotect(pud_t pud)
+{
+ return pud_clear_flags(pud, _PAGE_RW);
+}
+
+static inline pud_t pud_mkdirty(pud_t pud)
+{
+ return pud_set_flags(pud, _PAGE_DIRTY | _PAGE_SOFT_DIRTY);
+}
+
+static inline pud_t pud_mkdevmap(pud_t pud)
+{
+ return pud_set_flags(pud, _PAGE_DEVMAP);
+}
+
+static inline pud_t pud_mkhuge(pud_t pud)
+{
+ return pud_set_flags(pud, _PAGE_PSE);
+}
+
+static inline pud_t pud_mkyoung(pud_t pud)
+{
+ return pud_set_flags(pud, _PAGE_ACCESSED);
+}
+
+static inline pud_t pud_mkwrite(pud_t pud)
+{
+ return pud_set_flags(pud, _PAGE_RW);
+}
+
+#ifdef CONFIG_HAVE_ARCH_SOFT_DIRTY
+static inline int pte_soft_dirty(pte_t pte)
+{
+ return pte_flags(pte) & _PAGE_SOFT_DIRTY;
+}
+
+static inline int pmd_soft_dirty(pmd_t pmd)
+{
+ return pmd_flags(pmd) & _PAGE_SOFT_DIRTY;
+}
+
+static inline int pud_soft_dirty(pud_t pud)
+{
+ return pud_flags(pud) & _PAGE_SOFT_DIRTY;
+}
+
+static inline pte_t pte_mksoft_dirty(pte_t pte)
+{
+ return pte_set_flags(pte, _PAGE_SOFT_DIRTY);
+}
+
+static inline pmd_t pmd_mksoft_dirty(pmd_t pmd)
+{
+ return pmd_set_flags(pmd, _PAGE_SOFT_DIRTY);
+}
+
+static inline pud_t pud_mksoft_dirty(pud_t pud)
+{
+ return pud_set_flags(pud, _PAGE_SOFT_DIRTY);
+}
+
+static inline pte_t pte_clear_soft_dirty(pte_t pte)
+{
+ return pte_clear_flags(pte, _PAGE_SOFT_DIRTY);
+}
+
+static inline pmd_t pmd_clear_soft_dirty(pmd_t pmd)
+{
+ return pmd_clear_flags(pmd, _PAGE_SOFT_DIRTY);
+}
+
+static inline pud_t pud_clear_soft_dirty(pud_t pud)
{
- return pmd_clear_flags(pmd, _PAGE_PRESENT);
+ return pud_clear_flags(pud, _PAGE_SOFT_DIRTY);
}
+#endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */
+
/*
* Mask out unsupported bits in a present pgprot. Non-present pgprots
* can use those bits for other purposes, so leave them be.
@@ -304,58 +574,101 @@ static inline pgprotval_t massage_pgprot(pgprot_t pgprot)
return protval;
}
+static inline pgprotval_t check_pgprot(pgprot_t pgprot)
+{
+ pgprotval_t massaged_val = massage_pgprot(pgprot);
+
+ /* mmdebug.h can not be included here because of dependencies */
+#ifdef CONFIG_DEBUG_VM
+ WARN_ONCE(pgprot_val(pgprot) != massaged_val,
+ "attempted to set unsupported pgprot: %016llx "
+ "bits: %016llx supported: %016llx\n",
+ (u64)pgprot_val(pgprot),
+ (u64)pgprot_val(pgprot) ^ massaged_val,
+ (u64)__supported_pte_mask);
+#endif
+
+ return massaged_val;
+}
+
static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
{
- return __pte(((phys_addr_t)page_nr << PAGE_SHIFT) |
- massage_pgprot(pgprot));
+ phys_addr_t pfn = (phys_addr_t)page_nr << PAGE_SHIFT;
+ pfn ^= protnone_mask(pgprot_val(pgprot));
+ pfn &= PTE_PFN_MASK;
+ return __pte(pfn | check_pgprot(pgprot));
}
static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot)
{
- return __pmd(((phys_addr_t)page_nr << PAGE_SHIFT) |
- massage_pgprot(pgprot));
+ phys_addr_t pfn = (phys_addr_t)page_nr << PAGE_SHIFT;
+ pfn ^= protnone_mask(pgprot_val(pgprot));
+ pfn &= PHYSICAL_PMD_PAGE_MASK;
+ return __pmd(pfn | check_pgprot(pgprot));
+}
+
+static inline pud_t pfn_pud(unsigned long page_nr, pgprot_t pgprot)
+{
+ phys_addr_t pfn = (phys_addr_t)page_nr << PAGE_SHIFT;
+ pfn ^= protnone_mask(pgprot_val(pgprot));
+ pfn &= PHYSICAL_PUD_PAGE_MASK;
+ return __pud(pfn | check_pgprot(pgprot));
+}
+
+static inline pmd_t pmd_mkinvalid(pmd_t pmd)
+{
+ return pfn_pmd(pmd_pfn(pmd),
+ __pgprot(pmd_flags(pmd) & ~(_PAGE_PRESENT|_PAGE_PROTNONE)));
}
+static inline u64 flip_protnone_guard(u64 oldval, u64 val, u64 mask);
+
static inline pte_t pte_modify(pte_t pte, pgprot_t newprot)
{
- pteval_t val = pte_val(pte);
+ pteval_t val = pte_val(pte), oldval = val;
/*
* Chop off the NX bit (if present), and add the NX portion of
* the newprot (if present):
*/
val &= _PAGE_CHG_MASK;
- val |= massage_pgprot(newprot) & ~_PAGE_CHG_MASK;
-
+ val |= check_pgprot(newprot) & ~_PAGE_CHG_MASK;
+ val = flip_protnone_guard(oldval, val, PTE_PFN_MASK);
return __pte(val);
}
static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
{
- pmdval_t val = pmd_val(pmd);
+ pmdval_t val = pmd_val(pmd), oldval = val;
val &= _HPAGE_CHG_MASK;
- val |= massage_pgprot(newprot) & ~_HPAGE_CHG_MASK;
-
+ val |= check_pgprot(newprot) & ~_HPAGE_CHG_MASK;
+ val = flip_protnone_guard(oldval, val, PHYSICAL_PMD_PAGE_MASK);
return __pmd(val);
}
-/* mprotect needs to preserve PAT bits when updating vm_page_prot */
+/*
+ * mprotect needs to preserve PAT and encryption bits when updating
+ * vm_page_prot
+ */
#define pgprot_modify pgprot_modify
static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
{
pgprotval_t preservebits = pgprot_val(oldprot) & _PAGE_CHG_MASK;
- pgprotval_t addbits = pgprot_val(newprot);
+ pgprotval_t addbits = pgprot_val(newprot) & ~_PAGE_CHG_MASK;
return __pgprot(preservebits | addbits);
}
-#define pte_pgprot(x) __pgprot(pte_flags(x) & PTE_FLAGS_MASK)
+#define pte_pgprot(x) __pgprot(pte_flags(x))
+#define pmd_pgprot(x) __pgprot(pmd_flags(x))
+#define pud_pgprot(x) __pgprot(pud_flags(x))
+#define p4d_pgprot(x) __pgprot(p4d_flags(x))
#define canon_pgprot(p) __pgprot(massage_pgprot(p))
static inline int is_new_memtype_allowed(u64 paddr, unsigned long size,
- unsigned long flags,
- unsigned long new_flags)
+ enum page_cache_mode pcm,
+ enum page_cache_mode new_pcm)
{
/*
* PAT type is always WB for untracked ranges, so no need to check.
@@ -368,11 +681,17 @@ static inline int is_new_memtype_allowed(u64 paddr, unsigned long size,
* requested memtype:
* - request is uncached, return cannot be write-back
* - request is write-combine, return cannot be write-back
+ * - request is write-through, return cannot be write-back
+ * - request is write-through, return cannot be write-combine
*/
- if ((flags == _PAGE_CACHE_UC_MINUS &&
- new_flags == _PAGE_CACHE_WB) ||
- (flags == _PAGE_CACHE_WC &&
- new_flags == _PAGE_CACHE_WB)) {
+ if ((pcm == _PAGE_CACHE_MODE_UC_MINUS &&
+ new_pcm == _PAGE_CACHE_MODE_WB) ||
+ (pcm == _PAGE_CACHE_MODE_WC &&
+ new_pcm == _PAGE_CACHE_MODE_WB) ||
+ (pcm == _PAGE_CACHE_MODE_WT &&
+ new_pcm == _PAGE_CACHE_MODE_WB) ||
+ (pcm == _PAGE_CACHE_MODE_WT &&
+ new_pcm == _PAGE_CACHE_MODE_WC)) {
return 0;
}
@@ -381,20 +700,46 @@ static inline int is_new_memtype_allowed(u64 paddr, unsigned long size,
pmd_t *populate_extra_pmd(unsigned long vaddr);
pte_t *populate_extra_pte(unsigned long vaddr);
+
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+pgd_t __pti_set_user_pgtbl(pgd_t *pgdp, pgd_t pgd);
+
+/*
+ * Take a PGD location (pgdp) and a pgd value that needs to be set there.
+ * Populates the user and returns the resulting PGD that must be set in
+ * the kernel copy of the page tables.
+ */
+static inline pgd_t pti_set_user_pgtbl(pgd_t *pgdp, pgd_t pgd)
+{
+ if (!static_cpu_has(X86_FEATURE_PTI))
+ return pgd;
+ return __pti_set_user_pgtbl(pgdp, pgd);
+}
+#else /* CONFIG_PAGE_TABLE_ISOLATION */
+static inline pgd_t pti_set_user_pgtbl(pgd_t *pgdp, pgd_t pgd)
+{
+ return pgd;
+}
+#endif /* CONFIG_PAGE_TABLE_ISOLATION */
+
#endif /* __ASSEMBLY__ */
+
#ifdef CONFIG_X86_32
-# include "pgtable_32.h"
+# include <asm/pgtable_32.h>
#else
-# include "pgtable_64.h"
+# include <asm/pgtable_64.h>
#endif
#ifndef __ASSEMBLY__
#include <linux/mm_types.h>
+#include <linux/mmdebug.h>
+#include <linux/log2.h>
+#include <asm/fixmap.h>
static inline int pte_none(pte_t pte)
{
- return !pte.pte;
+ return !(pte.pte & ~(_PAGE_KNL_ERRATUM_MASK));
}
#define __HAVE_ARCH_PTE_SAME
@@ -408,44 +753,73 @@ static inline int pte_present(pte_t a)
return pte_flags(a) & (_PAGE_PRESENT | _PAGE_PROTNONE);
}
-static inline int pte_hidden(pte_t pte)
+#ifdef CONFIG_ARCH_HAS_PTE_DEVMAP
+static inline int pte_devmap(pte_t a)
{
- return pte_flags(pte) & _PAGE_HIDDEN;
+ return (pte_flags(a) & _PAGE_DEVMAP) == _PAGE_DEVMAP;
+}
+#endif
+
+#define pte_accessible pte_accessible
+static inline bool pte_accessible(struct mm_struct *mm, pte_t a)
+{
+ if (pte_flags(a) & _PAGE_PRESENT)
+ return true;
+
+ if ((pte_flags(a) & _PAGE_PROTNONE) &&
+ atomic_read(&mm->tlb_flush_pending))
+ return true;
+
+ return false;
}
static inline int pmd_present(pmd_t pmd)
{
- return pmd_flags(pmd) & _PAGE_PRESENT;
+ /*
+ * Checking for _PAGE_PSE is needed too because
+ * split_huge_page will temporarily clear the present bit (but
+ * the _PAGE_PSE flag will remain set at all times while the
+ * _PAGE_PRESENT bit is clear).
+ */
+ return pmd_flags(pmd) & (_PAGE_PRESENT | _PAGE_PROTNONE | _PAGE_PSE);
+}
+
+#ifdef CONFIG_NUMA_BALANCING
+/*
+ * These work without NUMA balancing but the kernel does not care. See the
+ * comment in include/linux/pgtable.h
+ */
+static inline int pte_protnone(pte_t pte)
+{
+ return (pte_flags(pte) & (_PAGE_PROTNONE | _PAGE_PRESENT))
+ == _PAGE_PROTNONE;
}
+static inline int pmd_protnone(pmd_t pmd)
+{
+ return (pmd_flags(pmd) & (_PAGE_PROTNONE | _PAGE_PRESENT))
+ == _PAGE_PROTNONE;
+}
+#endif /* CONFIG_NUMA_BALANCING */
+
static inline int pmd_none(pmd_t pmd)
{
/* Only check low word on 32-bit platforms, since it might be
out of sync with upper half. */
- return (unsigned long)native_pmd_val(pmd) == 0;
+ unsigned long val = native_pmd_val(pmd);
+ return (val & ~_PAGE_KNL_ERRATUM_MASK) == 0;
}
static inline unsigned long pmd_page_vaddr(pmd_t pmd)
{
- return (unsigned long)__va(pmd_val(pmd) & PTE_PFN_MASK);
+ return (unsigned long)__va(pmd_val(pmd) & pmd_pfn_mask(pmd));
}
/*
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pmd_page(pmd) pfn_to_page((pmd_val(pmd) & PTE_PFN_MASK) >> PAGE_SHIFT)
-
-/*
- * the pmd page can be thought of an array like this: pmd_t[PTRS_PER_PMD]
- *
- * this macro returns the index of the entry in the pmd page which would
- * control the given virtual address
- */
-static inline unsigned long pmd_index(unsigned long address)
-{
- return (address >> PMD_SHIFT) & (PTRS_PER_PMD - 1);
-}
+#define pmd_page(pmd) pfn_to_page(pmd_pfn(pmd))
/*
* Conversion functions: convert a page and protection to a page entry,
@@ -456,25 +830,10 @@ static inline unsigned long pmd_index(unsigned long address)
*/
#define mk_pte(page, pgprot) pfn_pte(page_to_pfn(page), (pgprot))
-/*
- * the pte page can be thought of an array like this: pte_t[PTRS_PER_PTE]
- *
- * this function returns the index of the entry in the pte page which would
- * control the given virtual address
- */
-static inline unsigned long pte_index(unsigned long address)
-{
- return (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1);
-}
-
-static inline pte_t *pte_offset_kernel(pmd_t *pmd, unsigned long address)
-{
- return (pte_t *)pmd_page_vaddr(*pmd) + pte_index(address);
-}
-
static inline int pmd_bad(pmd_t pmd)
{
- return (pmd_flags(pmd) & ~_PAGE_USER) != _KERNPG_TABLE;
+ return (pmd_flags(pmd) & ~(_PAGE_USER | _PAGE_ACCESSED)) !=
+ (_KERNPG_TABLE & ~_PAGE_ACCESSED);
}
static inline unsigned long pages_to_mb(unsigned long npg)
@@ -482,13 +841,10 @@ static inline unsigned long pages_to_mb(unsigned long npg)
return npg >> (20 - PAGE_SHIFT);
}
-#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
- remap_pfn_range(vma, vaddr, pfn, size, prot)
-
-#if PAGETABLE_LEVELS > 2
+#if CONFIG_PGTABLE_LEVELS > 2
static inline int pud_none(pud_t pud)
{
- return native_pud_val(pud) == 0;
+ return (native_pud_val(pud) & ~(_PAGE_KNL_ERRATUM_MASK)) == 0;
}
static inline int pud_present(pud_t pud)
@@ -496,23 +852,18 @@ static inline int pud_present(pud_t pud)
return pud_flags(pud) & _PAGE_PRESENT;
}
-static inline unsigned long pud_page_vaddr(pud_t pud)
+static inline pmd_t *pud_pgtable(pud_t pud)
{
- return (unsigned long)__va((unsigned long)pud_val(pud) & PTE_PFN_MASK);
+ return (pmd_t *)__va(pud_val(pud) & pud_pfn_mask(pud));
}
/*
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pud_page(pud) pfn_to_page(pud_val(pud) >> PAGE_SHIFT)
-
-/* Find an entry in the second-level page table.. */
-static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address)
-{
- return (pmd_t *)pud_page_vaddr(*pud) + pmd_index(address);
-}
+#define pud_page(pud) pfn_to_page(pud_pfn(pud))
+#define pud_leaf pud_large
static inline int pud_large(pud_t pud)
{
return (pud_val(pud) & (_PAGE_PSE | _PAGE_PRESENT)) ==
@@ -524,15 +875,56 @@ static inline int pud_bad(pud_t pud)
return (pud_flags(pud) & ~(_KERNPG_TABLE | _PAGE_USER)) != 0;
}
#else
+#define pud_leaf pud_large
static inline int pud_large(pud_t pud)
{
return 0;
}
-#endif /* PAGETABLE_LEVELS > 2 */
+#endif /* CONFIG_PGTABLE_LEVELS > 2 */
+
+#if CONFIG_PGTABLE_LEVELS > 3
+static inline int p4d_none(p4d_t p4d)
+{
+ return (native_p4d_val(p4d) & ~(_PAGE_KNL_ERRATUM_MASK)) == 0;
+}
+
+static inline int p4d_present(p4d_t p4d)
+{
+ return p4d_flags(p4d) & _PAGE_PRESENT;
+}
+
+static inline pud_t *p4d_pgtable(p4d_t p4d)
+{
+ return (pud_t *)__va(p4d_val(p4d) & p4d_pfn_mask(p4d));
+}
+
+/*
+ * Currently stuck as a macro due to indirect forward reference to
+ * linux/mmzone.h's __section_mem_map_addr() definition:
+ */
+#define p4d_page(p4d) pfn_to_page(p4d_pfn(p4d))
+
+static inline int p4d_bad(p4d_t p4d)
+{
+ unsigned long ignore_flags = _KERNPG_TABLE | _PAGE_USER;
+
+ if (IS_ENABLED(CONFIG_PAGE_TABLE_ISOLATION))
+ ignore_flags |= _PAGE_NX;
+
+ return (p4d_flags(p4d) & ~ignore_flags) != 0;
+}
+#endif /* CONFIG_PGTABLE_LEVELS > 3 */
+
+static inline unsigned long p4d_index(unsigned long address)
+{
+ return (address >> P4D_SHIFT) & (PTRS_PER_P4D - 1);
+}
-#if PAGETABLE_LEVELS > 3
+#if CONFIG_PGTABLE_LEVELS > 4
static inline int pgd_present(pgd_t pgd)
{
+ if (!pgtable_l5_enabled())
+ return 1;
return pgd_flags(pgd) & _PAGE_PRESENT;
}
@@ -545,58 +937,61 @@ static inline unsigned long pgd_page_vaddr(pgd_t pgd)
* Currently stuck as a macro due to indirect forward reference to
* linux/mmzone.h's __section_mem_map_addr() definition:
*/
-#define pgd_page(pgd) pfn_to_page(pgd_val(pgd) >> PAGE_SHIFT)
+#define pgd_page(pgd) pfn_to_page(pgd_pfn(pgd))
/* to find an entry in a page-table-directory. */
-static inline unsigned long pud_index(unsigned long address)
+static inline p4d_t *p4d_offset(pgd_t *pgd, unsigned long address)
{
- return (address >> PUD_SHIFT) & (PTRS_PER_PUD - 1);
-}
-
-static inline pud_t *pud_offset(pgd_t *pgd, unsigned long address)
-{
- return (pud_t *)pgd_page_vaddr(*pgd) + pud_index(address);
+ if (!pgtable_l5_enabled())
+ return (p4d_t *)pgd;
+ return (p4d_t *)pgd_page_vaddr(*pgd) + p4d_index(address);
}
static inline int pgd_bad(pgd_t pgd)
{
- return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE;
+ unsigned long ignore_flags = _PAGE_USER;
+
+ if (!pgtable_l5_enabled())
+ return 0;
+
+ if (IS_ENABLED(CONFIG_PAGE_TABLE_ISOLATION))
+ ignore_flags |= _PAGE_NX;
+
+ return (pgd_flags(pgd) & ~ignore_flags) != _KERNPG_TABLE;
}
static inline int pgd_none(pgd_t pgd)
{
+ if (!pgtable_l5_enabled())
+ return 0;
+ /*
+ * There is no need to do a workaround for the KNL stray
+ * A/D bit erratum here. PGDs only point to page tables
+ * except on 32-bit non-PAE which is not supported on
+ * KNL.
+ */
return !native_pgd_val(pgd);
}
-#endif /* PAGETABLE_LEVELS > 3 */
+#endif /* CONFIG_PGTABLE_LEVELS > 4 */
#endif /* __ASSEMBLY__ */
-/*
- * the pgd page can be thought of an array like this: pgd_t[PTRS_PER_PGD]
- *
- * this macro returns the index of the entry in the pgd page which would
- * control the given virtual address
- */
-#define pgd_index(address) (((address) >> PGDIR_SHIFT) & (PTRS_PER_PGD - 1))
-
-/*
- * pgd_offset() returns a (pgd_t *)
- * pgd_index() is used get the offset into the pgd page's array of pgd_t's;
- */
-#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address)))
-/*
- * a shortcut which implies the use of the kernel's pgd, instead
- * of a process's
- */
-#define pgd_offset_k(address) pgd_offset(&init_mm, (address))
-
-
#define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET)
#define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY)
#ifndef __ASSEMBLY__
extern int direct_gbpages;
+void init_mem_mapping(void);
+void early_alloc_pgt_buf(void);
+extern void memblock_find_dma_reserve(void);
+void __init poking_init(void);
+unsigned long init_memory_mapping(unsigned long start,
+ unsigned long end, pgprot_t prot);
+
+#ifdef CONFIG_X86_64
+extern pgd_t trampoline_pgd_entry;
+#endif
/* local pte updates need not use xchg for locking */
static inline pte_t native_local_ptep_get_and_clear(pte_t *ptep)
@@ -616,35 +1011,34 @@ static inline pmd_t native_local_pmdp_get_and_clear(pmd_t *pmdp)
return res;
}
-static inline void native_set_pte_at(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep , pte_t pte)
+static inline pud_t native_local_pudp_get_and_clear(pud_t *pudp)
{
- native_set_pte(ptep, pte);
+ pud_t res = *pudp;
+
+ native_pud_clear(pudp);
+ return res;
}
-static inline void native_set_pmd_at(struct mm_struct *mm, unsigned long addr,
- pmd_t *pmdp , pmd_t pmd)
+static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep, pte_t pte)
{
- native_set_pmd(pmdp, pmd);
+ page_table_check_pte_set(mm, addr, ptep, pte);
+ set_pte(ptep, pte);
}
-#ifndef CONFIG_PARAVIRT
-/*
- * Rules for using pte_update - it must be called after any PTE update which
- * has not been done using the set_pte / clear_pte interfaces. It is used by
- * shadow mode hypervisors to resynchronize the shadow page tables. Kernel PTE
- * updates should either be sets, clears, or set_pte_atomic for P->P
- * transitions, which means this hook should only be called for user PTEs.
- * This hook implies a P->P protection or access change has taken place, which
- * requires a subsequent TLB flush. The notification can optionally be delayed
- * until the TLB flush event by using the pte_update_defer form of the
- * interface, but care must be taken to assure that the flush happens while
- * still holding the same page table lock so that the shadow and primary pages
- * do not become out of sync on SMP.
- */
-#define pte_update(mm, addr, ptep) do { } while (0)
-#define pte_update_defer(mm, addr, ptep) do { } while (0)
-#endif
+static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
+ pmd_t *pmdp, pmd_t pmd)
+{
+ page_table_check_pmd_set(mm, addr, pmdp, pmd);
+ set_pmd(pmdp, pmd);
+}
+
+static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
+ pud_t *pudp, pud_t pud)
+{
+ page_table_check_pud_set(mm, addr, pudp, pud);
+ native_set_pud(pudp, pud);
+}
/*
* We only update the dirty/accessed state if we set
@@ -673,7 +1067,7 @@ static inline pte_t ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
pte_t *ptep)
{
pte_t pte = native_ptep_get_and_clear(ptep);
- pte_update(mm, addr, ptep);
+ page_table_check_pte_clear(mm, addr, pte);
return pte;
}
@@ -689,6 +1083,7 @@ static inline pte_t ptep_get_and_clear_full(struct mm_struct *mm,
* care about updates and native needs no locking
*/
pte = native_local_ptep_get_and_clear(ptep);
+ page_table_check_pte_clear(mm, addr, pte);
} else {
pte = ptep_get_and_clear(mm, addr, ptep);
}
@@ -700,10 +1095,9 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pte_t *ptep)
{
clear_bit(_PAGE_BIT_RW, (unsigned long *)&ptep->pte);
- pte_update(mm, addr, ptep);
}
-#define flush_tlb_fix_spurious_fault(vma, address)
+#define flush_tlb_fix_spurious_fault(vma, address, ptep) do { } while (0)
#define mk_pmd(page, pgprot) pfn_pmd(page_to_pfn(page), (pgprot))
@@ -711,47 +1105,152 @@ static inline void ptep_set_wrprotect(struct mm_struct *mm,
extern int pmdp_set_access_flags(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmdp,
pmd_t entry, int dirty);
+extern int pudp_set_access_flags(struct vm_area_struct *vma,
+ unsigned long address, pud_t *pudp,
+ pud_t entry, int dirty);
#define __HAVE_ARCH_PMDP_TEST_AND_CLEAR_YOUNG
extern int pmdp_test_and_clear_young(struct vm_area_struct *vma,
unsigned long addr, pmd_t *pmdp);
+extern int pudp_test_and_clear_young(struct vm_area_struct *vma,
+ unsigned long addr, pud_t *pudp);
#define __HAVE_ARCH_PMDP_CLEAR_YOUNG_FLUSH
extern int pmdp_clear_flush_young(struct vm_area_struct *vma,
unsigned long address, pmd_t *pmdp);
-#define __HAVE_ARCH_PMDP_SPLITTING_FLUSH
-extern void pmdp_splitting_flush(struct vm_area_struct *vma,
- unsigned long addr, pmd_t *pmdp);
-
-#define __HAVE_ARCH_PMD_WRITE
+#define pmd_write pmd_write
static inline int pmd_write(pmd_t pmd)
{
return pmd_flags(pmd) & _PAGE_RW;
}
-#define __HAVE_ARCH_PMDP_GET_AND_CLEAR
-static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm, unsigned long addr,
+#define __HAVE_ARCH_PMDP_HUGE_GET_AND_CLEAR
+static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm, unsigned long addr,
pmd_t *pmdp)
{
pmd_t pmd = native_pmdp_get_and_clear(pmdp);
- pmd_update(mm, addr, pmdp);
+
+ page_table_check_pmd_clear(mm, addr, pmd);
+
return pmd;
}
+#define __HAVE_ARCH_PUDP_HUGE_GET_AND_CLEAR
+static inline pud_t pudp_huge_get_and_clear(struct mm_struct *mm,
+ unsigned long addr, pud_t *pudp)
+{
+ pud_t pud = native_pudp_get_and_clear(pudp);
+
+ page_table_check_pud_clear(mm, addr, pud);
+
+ return pud;
+}
+
#define __HAVE_ARCH_PMDP_SET_WRPROTECT
static inline void pmdp_set_wrprotect(struct mm_struct *mm,
unsigned long addr, pmd_t *pmdp)
{
clear_bit(_PAGE_BIT_RW, (unsigned long *)pmdp);
- pmd_update(mm, addr, pmdp);
}
+#define pud_write pud_write
+static inline int pud_write(pud_t pud)
+{
+ return pud_flags(pud) & _PAGE_RW;
+}
+
+#ifndef pmdp_establish
+#define pmdp_establish pmdp_establish
+static inline pmd_t pmdp_establish(struct vm_area_struct *vma,
+ unsigned long address, pmd_t *pmdp, pmd_t pmd)
+{
+ page_table_check_pmd_set(vma->vm_mm, address, pmdp, pmd);
+ if (IS_ENABLED(CONFIG_SMP)) {
+ return xchg(pmdp, pmd);
+ } else {
+ pmd_t old = *pmdp;
+ WRITE_ONCE(*pmdp, pmd);
+ return old;
+ }
+}
+#endif
+
+#define __HAVE_ARCH_PMDP_INVALIDATE_AD
+extern pmd_t pmdp_invalidate_ad(struct vm_area_struct *vma,
+ unsigned long address, pmd_t *pmdp);
+
+/*
+ * Page table pages are page-aligned. The lower half of the top
+ * level is used for userspace and the top half for the kernel.
+ *
+ * Returns true for parts of the PGD that map userspace and
+ * false for the parts that map the kernel.
+ */
+static inline bool pgdp_maps_userspace(void *__ptr)
+{
+ unsigned long ptr = (unsigned long)__ptr;
+
+ return (((ptr & ~PAGE_MASK) / sizeof(pgd_t)) < PGD_KERNEL_START);
+}
+
+#define pgd_leaf pgd_large
+static inline int pgd_large(pgd_t pgd) { return 0; }
+
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+/*
+ * All top-level PAGE_TABLE_ISOLATION page tables are order-1 pages
+ * (8k-aligned and 8k in size). The kernel one is at the beginning 4k and
+ * the user one is in the last 4k. To switch between them, you
+ * just need to flip the 12th bit in their addresses.
+ */
+#define PTI_PGTABLE_SWITCH_BIT PAGE_SHIFT
+
+/*
+ * This generates better code than the inline assembly in
+ * __set_bit().
+ */
+static inline void *ptr_set_bit(void *ptr, int bit)
+{
+ unsigned long __ptr = (unsigned long)ptr;
+
+ __ptr |= BIT(bit);
+ return (void *)__ptr;
+}
+static inline void *ptr_clear_bit(void *ptr, int bit)
+{
+ unsigned long __ptr = (unsigned long)ptr;
+
+ __ptr &= ~BIT(bit);
+ return (void *)__ptr;
+}
+
+static inline pgd_t *kernel_to_user_pgdp(pgd_t *pgdp)
+{
+ return ptr_set_bit(pgdp, PTI_PGTABLE_SWITCH_BIT);
+}
+
+static inline pgd_t *user_to_kernel_pgdp(pgd_t *pgdp)
+{
+ return ptr_clear_bit(pgdp, PTI_PGTABLE_SWITCH_BIT);
+}
+
+static inline p4d_t *kernel_to_user_p4dp(p4d_t *p4dp)
+{
+ return ptr_set_bit(p4dp, PTI_PGTABLE_SWITCH_BIT);
+}
+
+static inline p4d_t *user_to_kernel_p4dp(p4d_t *p4dp)
+{
+ return ptr_clear_bit(p4dp, PTI_PGTABLE_SWITCH_BIT);
+}
+#endif /* CONFIG_PAGE_TABLE_ISOLATION */
+
/*
* clone_pgd_range(pgd_t *dst, pgd_t *src, int count);
*
- * dst - pointer to pgd range anwhere on a pgd page
+ * dst - pointer to pgd range anywhere on a pgd page
* src - ""
* count - the number of pgds to copy.
*
@@ -760,11 +1259,224 @@ static inline void pmdp_set_wrprotect(struct mm_struct *mm,
*/
static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count)
{
- memcpy(dst, src, count * sizeof(pgd_t));
+ memcpy(dst, src, count * sizeof(pgd_t));
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+ if (!static_cpu_has(X86_FEATURE_PTI))
+ return;
+ /* Clone the user space pgd as well */
+ memcpy(kernel_to_user_pgdp(dst), kernel_to_user_pgdp(src),
+ count * sizeof(pgd_t));
+#endif
+}
+
+#define PTE_SHIFT ilog2(PTRS_PER_PTE)
+static inline int page_level_shift(enum pg_level level)
+{
+ return (PAGE_SHIFT - PTE_SHIFT) + level * PTE_SHIFT;
+}
+static inline unsigned long page_level_size(enum pg_level level)
+{
+ return 1UL << page_level_shift(level);
+}
+static inline unsigned long page_level_mask(enum pg_level level)
+{
+ return ~(page_level_size(level) - 1);
+}
+
+/*
+ * The x86 doesn't have any external MMU info: the kernel page
+ * tables contain all the necessary information.
+ */
+static inline void update_mmu_cache(struct vm_area_struct *vma,
+ unsigned long addr, pte_t *ptep)
+{
+}
+static inline void update_mmu_cache_pmd(struct vm_area_struct *vma,
+ unsigned long addr, pmd_t *pmd)
+{
+}
+static inline void update_mmu_cache_pud(struct vm_area_struct *vma,
+ unsigned long addr, pud_t *pud)
+{
+}
+static inline pte_t pte_swp_mkexclusive(pte_t pte)
+{
+ return pte_set_flags(pte, _PAGE_SWP_EXCLUSIVE);
+}
+
+static inline int pte_swp_exclusive(pte_t pte)
+{
+ return pte_flags(pte) & _PAGE_SWP_EXCLUSIVE;
+}
+
+static inline pte_t pte_swp_clear_exclusive(pte_t pte)
+{
+ return pte_clear_flags(pte, _PAGE_SWP_EXCLUSIVE);
+}
+
+#ifdef CONFIG_HAVE_ARCH_SOFT_DIRTY
+static inline pte_t pte_swp_mksoft_dirty(pte_t pte)
+{
+ return pte_set_flags(pte, _PAGE_SWP_SOFT_DIRTY);
+}
+
+static inline int pte_swp_soft_dirty(pte_t pte)
+{
+ return pte_flags(pte) & _PAGE_SWP_SOFT_DIRTY;
+}
+
+static inline pte_t pte_swp_clear_soft_dirty(pte_t pte)
+{
+ return pte_clear_flags(pte, _PAGE_SWP_SOFT_DIRTY);
+}
+
+#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION
+static inline pmd_t pmd_swp_mksoft_dirty(pmd_t pmd)
+{
+ return pmd_set_flags(pmd, _PAGE_SWP_SOFT_DIRTY);
+}
+
+static inline int pmd_swp_soft_dirty(pmd_t pmd)
+{
+ return pmd_flags(pmd) & _PAGE_SWP_SOFT_DIRTY;
+}
+
+static inline pmd_t pmd_swp_clear_soft_dirty(pmd_t pmd)
+{
+ return pmd_clear_flags(pmd, _PAGE_SWP_SOFT_DIRTY);
+}
+#endif
+#endif
+
+#ifdef CONFIG_HAVE_ARCH_USERFAULTFD_WP
+static inline pte_t pte_swp_mkuffd_wp(pte_t pte)
+{
+ return pte_set_flags(pte, _PAGE_SWP_UFFD_WP);
+}
+
+static inline int pte_swp_uffd_wp(pte_t pte)
+{
+ return pte_flags(pte) & _PAGE_SWP_UFFD_WP;
+}
+
+static inline pte_t pte_swp_clear_uffd_wp(pte_t pte)
+{
+ return pte_clear_flags(pte, _PAGE_SWP_UFFD_WP);
+}
+
+static inline pmd_t pmd_swp_mkuffd_wp(pmd_t pmd)
+{
+ return pmd_set_flags(pmd, _PAGE_SWP_UFFD_WP);
+}
+
+static inline int pmd_swp_uffd_wp(pmd_t pmd)
+{
+ return pmd_flags(pmd) & _PAGE_SWP_UFFD_WP;
+}
+
+static inline pmd_t pmd_swp_clear_uffd_wp(pmd_t pmd)
+{
+ return pmd_clear_flags(pmd, _PAGE_SWP_UFFD_WP);
+}
+#endif /* CONFIG_HAVE_ARCH_USERFAULTFD_WP */
+
+static inline u16 pte_flags_pkey(unsigned long pte_flags)
+{
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+ /* ifdef to avoid doing 59-bit shift on 32-bit values */
+ return (pte_flags & _PAGE_PKEY_MASK) >> _PAGE_BIT_PKEY_BIT0;
+#else
+ return 0;
+#endif
+}
+
+static inline bool __pkru_allows_pkey(u16 pkey, bool write)
+{
+ u32 pkru = read_pkru();
+
+ if (!__pkru_allows_read(pkru, pkey))
+ return false;
+ if (write && !__pkru_allows_write(pkru, pkey))
+ return false;
+
+ return true;
+}
+
+/*
+ * 'pteval' can come from a PTE, PMD or PUD. We only check
+ * _PAGE_PRESENT, _PAGE_USER, and _PAGE_RW in here which are the
+ * same value on all 3 types.
+ */
+static inline bool __pte_access_permitted(unsigned long pteval, bool write)
+{
+ unsigned long need_pte_bits = _PAGE_PRESENT|_PAGE_USER;
+
+ if (write)
+ need_pte_bits |= _PAGE_RW;
+
+ if ((pteval & need_pte_bits) != need_pte_bits)
+ return 0;
+
+ return __pkru_allows_pkey(pte_flags_pkey(pteval), write);
+}
+
+#define pte_access_permitted pte_access_permitted
+static inline bool pte_access_permitted(pte_t pte, bool write)
+{
+ return __pte_access_permitted(pte_val(pte), write);
+}
+
+#define pmd_access_permitted pmd_access_permitted
+static inline bool pmd_access_permitted(pmd_t pmd, bool write)
+{
+ return __pte_access_permitted(pmd_val(pmd), write);
+}
+
+#define pud_access_permitted pud_access_permitted
+static inline bool pud_access_permitted(pud_t pud, bool write)
+{
+ return __pte_access_permitted(pud_val(pud), write);
+}
+
+#define __HAVE_ARCH_PFN_MODIFY_ALLOWED 1
+extern bool pfn_modify_allowed(unsigned long pfn, pgprot_t prot);
+
+static inline bool arch_has_pfn_modify_check(void)
+{
+ return boot_cpu_has_bug(X86_BUG_L1TF);
+}
+
+#define arch_has_hw_pte_young arch_has_hw_pte_young
+static inline bool arch_has_hw_pte_young(void)
+{
+ return true;
+}
+
+#ifdef CONFIG_XEN_PV
+#define arch_has_hw_nonleaf_pmd_young arch_has_hw_nonleaf_pmd_young
+static inline bool arch_has_hw_nonleaf_pmd_young(void)
+{
+ return !cpu_feature_enabled(X86_FEATURE_XENPV);
+}
+#endif
+
+#ifdef CONFIG_PAGE_TABLE_CHECK
+static inline bool pte_user_accessible_page(pte_t pte)
+{
+ return (pte_val(pte) & _PAGE_PRESENT) && (pte_val(pte) & _PAGE_USER);
+}
+
+static inline bool pmd_user_accessible_page(pmd_t pmd)
+{
+ return pmd_leaf(pmd) && (pmd_val(pmd) & _PAGE_PRESENT) && (pmd_val(pmd) & _PAGE_USER);
}
+static inline bool pud_user_accessible_page(pud_t pud)
+{
+ return pud_leaf(pud) && (pud_val(pud) & _PAGE_PRESENT) && (pud_val(pud) & _PAGE_USER);
+}
+#endif
-#include <asm-generic/pgtable.h>
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_PGTABLE_H */
diff --git a/arch/x86/include/asm/pgtable_32.h b/arch/x86/include/asm/pgtable_32.h
index 0c92113c4cb6..7d4ad8907297 100644
--- a/arch/x86/include/asm/pgtable_32.h
+++ b/arch/x86/include/asm/pgtable_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGTABLE_32_H
#define _ASM_X86_PGTABLE_32_H
@@ -14,7 +15,6 @@
*/
#ifndef __ASSEMBLY__
#include <asm/processor.h>
-#include <asm/fixmap.h>
#include <linux/threads.h>
#include <asm/paravirt.h>
@@ -27,20 +27,10 @@ struct vm_area_struct;
extern pgd_t swapper_pg_dir[1024];
extern pgd_t initial_page_table[1024];
+extern pmd_t initial_pg_pmd[];
-static inline void pgtable_cache_init(void) { }
-static inline void check_pgt_cache(void) { }
void paging_init(void);
-
-extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
-
-
-/*
- * Define this if things work differently on an i386 and an i486:
- * it will (on an i486) warn about kernel memory accesses that are
- * done without a 'access_ok(VERIFY_WRITE,..)'
- */
-#undef TEST_ACCESS_OK
+void sync_initial_page_table(void);
#ifdef CONFIG_X86_PAE
# include <asm/pgtable-3level.h>
@@ -48,40 +38,38 @@ extern void set_pmd_pfn(unsigned long, unsigned long, pgprot_t);
# include <asm/pgtable-2level.h>
#endif
-#if defined(CONFIG_HIGHPTE)
-#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \
- pte_index((address)))
-#define pte_unmap(pte) kunmap_atomic((pte))
-#else
-#define pte_offset_map(dir, address) \
- ((pte_t *)page_address(pmd_page(*(dir))) + pte_index((address)))
-#define pte_unmap(pte) do { } while (0)
-#endif
-
/* Clear a kernel PTE and flush it from the TLB */
#define kpte_clear_flush(ptep, vaddr) \
do { \
pte_clear(&init_mm, (vaddr), (ptep)); \
- __flush_tlb_one((vaddr)); \
+ flush_tlb_one_kernel((vaddr)); \
} while (0)
-/*
- * The i386 doesn't have any external MMU info: the kernel page
- * tables contain all the necessary information.
- */
-#define update_mmu_cache(vma, address, ptep) do { } while (0)
-
#endif /* !__ASSEMBLY__ */
/*
- * kern_addr_valid() is (1) for FLATMEM and (0) for
- * SPARSEMEM and DISCONTIGMEM
+ * This is used to calculate the .brk reservation for initial pagetables.
+ * Enough space is reserved to allocate pagetables sufficient to cover all
+ * of LOWMEM_PAGES, which is an upper bound on the size of the direct map of
+ * lowmem.
+ *
+ * With PAE paging (PTRS_PER_PMD > 1), we allocate PTRS_PER_PGD == 4 pages for
+ * the PMD's in addition to the pages required for the last level pagetables.
*/
-#ifdef CONFIG_FLATMEM
-#define kern_addr_valid(addr) (1)
+#if PTRS_PER_PMD > 1
+#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD)
#else
-#define kern_addr_valid(kaddr) (0)
+#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD)
#endif
+/*
+ * Number of possible pages in the lowmem region.
+ *
+ * We shift 2 by 31 instead of 1 by 32 to the left in order to avoid a
+ * gas warning about overflowing shift count when gas has been compiled
+ * with only a host target support using a 32-bit type for internal
+ * representation.
+ */
+#define LOWMEM_PAGES ((((_ULL(2)<<31) - __PAGE_OFFSET) >> PAGE_SHIFT))
+
#endif /* _ASM_X86_PGTABLE_32_H */
diff --git a/arch/x86/include/asm/pgtable_32_areas.h b/arch/x86/include/asm/pgtable_32_areas.h
new file mode 100644
index 000000000000..b6355416a15a
--- /dev/null
+++ b/arch/x86/include/asm/pgtable_32_areas.h
@@ -0,0 +1,53 @@
+#ifndef _ASM_X86_PGTABLE_32_AREAS_H
+#define _ASM_X86_PGTABLE_32_AREAS_H
+
+#include <asm/cpu_entry_area.h>
+
+/*
+ * Just any arbitrary offset to the start of the vmalloc VM area: the
+ * current 8MB value just means that there will be a 8MB "hole" after the
+ * physical memory until the kernel virtual memory starts. That means that
+ * any out-of-bounds memory accesses will hopefully be caught.
+ * The vmalloc() routines leaves a hole of 4kB between each vmalloced
+ * area for the same reason. ;)
+ */
+#define VMALLOC_OFFSET (8 * 1024 * 1024)
+
+#ifndef __ASSEMBLY__
+extern bool __vmalloc_start_set; /* set once high_memory is set */
+#endif
+
+#define VMALLOC_START ((unsigned long)high_memory + VMALLOC_OFFSET)
+#ifdef CONFIG_X86_PAE
+#define LAST_PKMAP 512
+#else
+#define LAST_PKMAP 1024
+#endif
+
+#define CPU_ENTRY_AREA_PAGES (NR_CPUS * DIV_ROUND_UP(sizeof(struct cpu_entry_area), PAGE_SIZE))
+
+/* The +1 is for the readonly IDT page: */
+#define CPU_ENTRY_AREA_BASE \
+ ((FIXADDR_TOT_START - PAGE_SIZE*(CPU_ENTRY_AREA_PAGES+1)) & PMD_MASK)
+
+#define LDT_BASE_ADDR \
+ ((CPU_ENTRY_AREA_BASE - PAGE_SIZE) & PMD_MASK)
+
+#define LDT_END_ADDR (LDT_BASE_ADDR + PMD_SIZE)
+
+#define PKMAP_BASE \
+ ((LDT_BASE_ADDR - PAGE_SIZE) & PMD_MASK)
+
+#ifdef CONFIG_HIGHMEM
+# define VMALLOC_END (PKMAP_BASE - 2 * PAGE_SIZE)
+#else
+# define VMALLOC_END (LDT_BASE_ADDR - 2 * PAGE_SIZE)
+#endif
+
+#define MODULES_VADDR VMALLOC_START
+#define MODULES_END VMALLOC_END
+#define MODULES_LEN (MODULES_VADDR - MODULES_END)
+
+#define MAXMEM (VMALLOC_END - PAGE_OFFSET - __VMALLOC_RESERVE)
+
+#endif /* _ASM_X86_PGTABLE_32_AREAS_H */
diff --git a/arch/x86/include/asm/pgtable_32_types.h b/arch/x86/include/asm/pgtable_32_types.h
index ed5903be26fe..5356a46b0373 100644
--- a/arch/x86/include/asm/pgtable_32_types.h
+++ b/arch/x86/include/asm/pgtable_32_types.h
@@ -1,5 +1,6 @@
-#ifndef _ASM_X86_PGTABLE_32_DEFS_H
-#define _ASM_X86_PGTABLE_32_DEFS_H
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_PGTABLE_32_TYPES_H
+#define _ASM_X86_PGTABLE_32_TYPES_H
/*
* The Linux x86 paging architecture is 'compile-time dual-mode', it
@@ -14,42 +15,9 @@
# include <asm/pgtable-2level_types.h>
#endif
+#define pgtable_l5_enabled() 0
+
#define PGDIR_SIZE (1UL << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE - 1))
-/* Just any arbitrary offset to the start of the vmalloc VM area: the
- * current 8MB value just means that there will be a 8MB "hole" after the
- * physical memory until the kernel virtual memory starts. That means that
- * any out-of-bounds memory accesses will hopefully be caught.
- * The vmalloc() routines leaves a hole of 4kB between each vmalloced
- * area for the same reason. ;)
- */
-#define VMALLOC_OFFSET (8 * 1024 * 1024)
-
-#ifndef __ASSEMBLY__
-extern bool __vmalloc_start_set; /* set once high_memory is set */
-#endif
-
-#define VMALLOC_START ((unsigned long)high_memory + VMALLOC_OFFSET)
-#ifdef CONFIG_X86_PAE
-#define LAST_PKMAP 512
-#else
-#define LAST_PKMAP 1024
-#endif
-
-#define PKMAP_BASE ((FIXADDR_BOOT_START - PAGE_SIZE * (LAST_PKMAP + 1)) \
- & PMD_MASK)
-
-#ifdef CONFIG_HIGHMEM
-# define VMALLOC_END (PKMAP_BASE - 2 * PAGE_SIZE)
-#else
-# define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE)
-#endif
-
-#define MODULES_VADDR VMALLOC_START
-#define MODULES_END VMALLOC_END
-#define MODULES_LEN (MODULES_VADDR - MODULES_END)
-
-#define MAXMEM (VMALLOC_END - PAGE_OFFSET - __VMALLOC_RESERVE)
-
-#endif /* _ASM_X86_PGTABLE_32_DEFS_H */
+#endif /* _ASM_X86_PGTABLE_32_TYPES_H */
diff --git a/arch/x86/include/asm/pgtable_64.h b/arch/x86/include/asm/pgtable_64.h
index 975f709e09ae..7929327abe00 100644
--- a/arch/x86/include/asm/pgtable_64.h
+++ b/arch/x86/include/asm/pgtable_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGTABLE_64_H
#define _ASM_X86_PGTABLE_64_H
@@ -13,45 +14,63 @@
#include <asm/processor.h>
#include <linux/bitops.h>
#include <linux/threads.h>
+#include <asm/fixmap.h>
+extern p4d_t level4_kernel_pgt[512];
+extern p4d_t level4_ident_pgt[512];
extern pud_t level3_kernel_pgt[512];
extern pud_t level3_ident_pgt[512];
extern pmd_t level2_kernel_pgt[512];
extern pmd_t level2_fixmap_pgt[512];
extern pmd_t level2_ident_pgt[512];
-extern pgd_t init_level4_pgt[];
+extern pte_t level1_fixmap_pgt[512 * FIXMAP_PMD_NUM];
+extern pgd_t init_top_pgt[];
-#define swapper_pg_dir init_level4_pgt
+#define swapper_pg_dir init_top_pgt
extern void paging_init(void);
+static inline void sync_initial_page_table(void) { }
#define pte_ERROR(e) \
- printk("%s:%d: bad pte %p(%016lx).\n", \
+ pr_err("%s:%d: bad pte %p(%016lx)\n", \
__FILE__, __LINE__, &(e), pte_val(e))
#define pmd_ERROR(e) \
- printk("%s:%d: bad pmd %p(%016lx).\n", \
+ pr_err("%s:%d: bad pmd %p(%016lx)\n", \
__FILE__, __LINE__, &(e), pmd_val(e))
#define pud_ERROR(e) \
- printk("%s:%d: bad pud %p(%016lx).\n", \
+ pr_err("%s:%d: bad pud %p(%016lx)\n", \
__FILE__, __LINE__, &(e), pud_val(e))
+
+#if CONFIG_PGTABLE_LEVELS >= 5
+#define p4d_ERROR(e) \
+ pr_err("%s:%d: bad p4d %p(%016lx)\n", \
+ __FILE__, __LINE__, &(e), p4d_val(e))
+#endif
+
#define pgd_ERROR(e) \
- printk("%s:%d: bad pgd %p(%016lx).\n", \
+ pr_err("%s:%d: bad pgd %p(%016lx)\n", \
__FILE__, __LINE__, &(e), pgd_val(e))
struct mm_struct;
-void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte);
+#define mm_p4d_folded mm_p4d_folded
+static inline bool mm_p4d_folded(struct mm_struct *mm)
+{
+ return !pgtable_l5_enabled();
+}
+void set_pte_vaddr_p4d(p4d_t *p4d_page, unsigned long vaddr, pte_t new_pte);
+void set_pte_vaddr_pud(pud_t *pud_page, unsigned long vaddr, pte_t new_pte);
-static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr,
- pte_t *ptep)
+static inline void native_set_pte(pte_t *ptep, pte_t pte)
{
- *ptep = native_make_pte(0);
+ WRITE_ONCE(*ptep, pte);
}
-static inline void native_set_pte(pte_t *ptep, pte_t pte)
+static inline void native_pte_clear(struct mm_struct *mm, unsigned long addr,
+ pte_t *ptep)
{
- *ptep = pte;
+ native_set_pte(ptep, native_make_pte(0));
}
static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
@@ -61,7 +80,7 @@ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte)
static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd)
{
- *pmdp = pmd;
+ WRITE_ONCE(*pmdp, pmd);
}
static inline void native_pmd_clear(pmd_t *pmd)
@@ -97,7 +116,7 @@ static inline pmd_t native_pmdp_get_and_clear(pmd_t *xp)
static inline void native_set_pud(pud_t *pudp, pud_t pud)
{
- *pudp = pud;
+ WRITE_ONCE(*pudp, pud);
}
static inline void native_pud_clear(pud_t *pud)
@@ -105,9 +124,43 @@ static inline void native_pud_clear(pud_t *pud)
native_set_pud(pud, native_make_pud(0));
}
+static inline pud_t native_pudp_get_and_clear(pud_t *xp)
+{
+#ifdef CONFIG_SMP
+ return native_make_pud(xchg(&xp->pud, 0));
+#else
+ /* native_local_pudp_get_and_clear,
+ * but duplicated because of cyclic dependency
+ */
+ pud_t ret = *xp;
+
+ native_pud_clear(xp);
+ return ret;
+#endif
+}
+
+static inline void native_set_p4d(p4d_t *p4dp, p4d_t p4d)
+{
+ pgd_t pgd;
+
+ if (pgtable_l5_enabled() || !IS_ENABLED(CONFIG_PAGE_TABLE_ISOLATION)) {
+ WRITE_ONCE(*p4dp, p4d);
+ return;
+ }
+
+ pgd = native_make_pgd(native_p4d_val(p4d));
+ pgd = pti_set_user_pgtbl((pgd_t *)p4dp, pgd);
+ WRITE_ONCE(*p4dp, native_make_p4d(native_pgd_val(pgd)));
+}
+
+static inline void native_p4d_clear(p4d_t *p4d)
+{
+ native_set_p4d(p4d, native_make_p4d(0));
+}
+
static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd)
{
- *pgdp = pgd;
+ WRITE_ONCE(*pgdp, pti_set_user_pgtbl(pgdp, pgd));
}
static inline void native_pgd_clear(pgd_t *pgd)
@@ -115,64 +168,83 @@ static inline void native_pgd_clear(pgd_t *pgd)
native_set_pgd(pgd, native_make_pgd(0));
}
-extern void sync_global_pgds(unsigned long start, unsigned long end);
-
/*
* Conversion functions: convert a page and protection to a page entry,
* and a page entry and page directory to the page they refer to.
*/
-/*
- * Level 4 access.
- */
-static inline int pgd_large(pgd_t pgd) { return 0; }
-#define mk_kernel_pgd(address) __pgd((address) | _KERNPG_TABLE)
+/* PGD - Level 4 access */
-/* PUD - Level3 access */
+/* PUD - Level 3 access */
-/* PMD - Level 2 access */
-#define pte_to_pgoff(pte) ((pte_val((pte)) & PHYSICAL_PAGE_MASK) >> PAGE_SHIFT)
-#define pgoff_to_pte(off) ((pte_t) { .pte = ((off) << PAGE_SHIFT) | \
- _PAGE_FILE })
-#define PTE_FILE_MAX_BITS __PHYSICAL_MASK_SHIFT
+/* PMD - Level 2 access */
-/* PTE - Level 1 access. */
+/* PTE - Level 1 access */
-/* x86-64 always has all page tables mapped. */
-#define pte_offset_map(dir, address) pte_offset_kernel((dir), (address))
-#define pte_unmap(pte) ((void)(pte))/* NOP */
+/*
+ * Encode and de-code a swap entry
+ *
+ * | ... | 11| 10| 9|8|7|6|5| 4| 3|2| 1|0| <- bit number
+ * | ... |SW3|SW2|SW1|G|L|D|A|CD|WT|U| W|P| <- bit names
+ * | TYPE (59-63) | ~OFFSET (9-58) |0|0|X|X| X| E|F|SD|0| <- swp entry
+ *
+ * G (8) is aliased and used as a PROT_NONE indicator for
+ * !present ptes. We need to start storing swap entries above
+ * there. We also need to avoid using A and D because of an
+ * erratum where they can be incorrectly set by hardware on
+ * non-present PTEs.
+ *
+ * SD Bits 1-4 are not used in non-present format and available for
+ * special use described below:
+ *
+ * SD (1) in swp entry is used to store soft dirty bit, which helps us
+ * remember soft dirty over page migration
+ *
+ * F (2) in swp entry is used to record when a pagetable is
+ * writeprotected by userfaultfd WP support.
+ *
+ * E (3) in swp entry is used to rememeber PG_anon_exclusive.
+ *
+ * Bit 7 in swp entry should be 0 because pmd_present checks not only P,
+ * but also L and G.
+ *
+ * The offset is inverted by a binary not operation to make the high
+ * physical bits set.
+ */
+#define SWP_TYPE_BITS 5
-#define update_mmu_cache(vma, address, ptep) do { } while (0)
+#define SWP_OFFSET_FIRST_BIT (_PAGE_BIT_PROTNONE + 1)
-/* Encode and de-code a swap entry */
-#if _PAGE_BIT_FILE < _PAGE_BIT_PROTNONE
-#define SWP_TYPE_BITS (_PAGE_BIT_FILE - _PAGE_BIT_PRESENT - 1)
-#define SWP_OFFSET_SHIFT (_PAGE_BIT_PROTNONE + 1)
-#else
-#define SWP_TYPE_BITS (_PAGE_BIT_PROTNONE - _PAGE_BIT_PRESENT - 1)
-#define SWP_OFFSET_SHIFT (_PAGE_BIT_FILE + 1)
-#endif
+/* We always extract/encode the offset by shifting it all the way up, and then down again */
+#define SWP_OFFSET_SHIFT (SWP_OFFSET_FIRST_BIT+SWP_TYPE_BITS)
#define MAX_SWAPFILES_CHECK() BUILD_BUG_ON(MAX_SWAPFILES_SHIFT > SWP_TYPE_BITS)
-#define __swp_type(x) (((x).val >> (_PAGE_BIT_PRESENT + 1)) \
- & ((1U << SWP_TYPE_BITS) - 1))
-#define __swp_offset(x) ((x).val >> SWP_OFFSET_SHIFT)
-#define __swp_entry(type, offset) ((swp_entry_t) { \
- ((type) << (_PAGE_BIT_PRESENT + 1)) \
- | ((offset) << SWP_OFFSET_SHIFT) })
+/* Extract the high bits for type */
+#define __swp_type(x) ((x).val >> (64 - SWP_TYPE_BITS))
+
+/* Shift up (to get rid of type), then down to get value */
+#define __swp_offset(x) (~(x).val << SWP_TYPE_BITS >> SWP_OFFSET_SHIFT)
+
+/*
+ * Shift the offset up "too far" by TYPE bits, then down again
+ * The offset is inverted by a binary not operation to make the high
+ * physical bits set.
+ */
+#define __swp_entry(type, offset) ((swp_entry_t) { \
+ (~(unsigned long)(offset) << SWP_OFFSET_SHIFT >> SWP_TYPE_BITS) \
+ | ((unsigned long)(type) << (64-SWP_TYPE_BITS)) })
+
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val((pte)) })
+#define __pmd_to_swp_entry(pmd) ((swp_entry_t) { pmd_val((pmd)) })
#define __swp_entry_to_pte(x) ((pte_t) { .pte = (x).val })
+#define __swp_entry_to_pmd(x) ((pmd_t) { .pmd = (x).val })
-extern int kern_addr_valid(unsigned long addr);
extern void cleanup_highmap(void);
#define HAVE_ARCH_UNMAPPED_AREA
#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN
-#define pgtable_cache_init() do { } while (0)
-#define check_pgt_cache() do { } while (0)
-
#define PAGE_AGP PAGE_KERNEL_NOCACHE
#define HAVE_PAGE_AGP 1
@@ -182,6 +254,20 @@ extern void cleanup_highmap(void);
#define __HAVE_ARCH_PTE_SAME
-#endif /* !__ASSEMBLY__ */
+#define vmemmap ((struct page *)VMEMMAP_START)
+extern void init_extra_mapping_uc(unsigned long phys, unsigned long size);
+extern void init_extra_mapping_wb(unsigned long phys, unsigned long size);
+
+#define gup_fast_permitted gup_fast_permitted
+static inline bool gup_fast_permitted(unsigned long start, unsigned long end)
+{
+ if (end >> __VIRTUAL_MASK_SHIFT)
+ return false;
+ return true;
+}
+
+#include <asm/pgtable-invert.h>
+
+#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_PGTABLE_64_H */
diff --git a/arch/x86/include/asm/pgtable_64_types.h b/arch/x86/include/asm/pgtable_64_types.h
index 766ea16fbbbd..38b54b992f32 100644
--- a/arch/x86/include/asm/pgtable_64_types.h
+++ b/arch/x86/include/asm/pgtable_64_types.h
@@ -1,8 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGTABLE_64_DEFS_H
#define _ASM_X86_PGTABLE_64_DEFS_H
+#include <asm/sparsemem.h>
+
#ifndef __ASSEMBLY__
#include <linux/types.h>
+#include <asm/kaslr.h>
/*
* These are used to make use of C type-checking..
@@ -10,23 +14,71 @@
typedef unsigned long pteval_t;
typedef unsigned long pmdval_t;
typedef unsigned long pudval_t;
+typedef unsigned long p4dval_t;
typedef unsigned long pgdval_t;
typedef unsigned long pgprotval_t;
typedef struct { pteval_t pte; } pte_t;
+typedef struct { pmdval_t pmd; } pmd_t;
+
+#ifdef CONFIG_X86_5LEVEL
+extern unsigned int __pgtable_l5_enabled;
+
+#ifdef USE_EARLY_PGTABLE_L5
+/*
+ * cpu_feature_enabled() is not available in early boot code.
+ * Use variable instead.
+ */
+static inline bool pgtable_l5_enabled(void)
+{
+ return __pgtable_l5_enabled;
+}
+#else
+#define pgtable_l5_enabled() cpu_feature_enabled(X86_FEATURE_LA57)
+#endif /* USE_EARLY_PGTABLE_L5 */
+
+#else
+#define pgtable_l5_enabled() 0
+#endif /* CONFIG_X86_5LEVEL */
+
+extern unsigned int pgdir_shift;
+extern unsigned int ptrs_per_p4d;
#endif /* !__ASSEMBLY__ */
#define SHARED_KERNEL_PMD 0
-#define PAGETABLE_LEVELS 4
+
+#ifdef CONFIG_X86_5LEVEL
/*
* PGDIR_SHIFT determines what a top-level page table entry can map
*/
-#define PGDIR_SHIFT 39
+#define PGDIR_SHIFT pgdir_shift
#define PTRS_PER_PGD 512
/*
+ * 4th level page in 5-level paging case
+ */
+#define P4D_SHIFT 39
+#define MAX_PTRS_PER_P4D 512
+#define PTRS_PER_P4D ptrs_per_p4d
+#define P4D_SIZE (_AC(1, UL) << P4D_SHIFT)
+#define P4D_MASK (~(P4D_SIZE - 1))
+
+#define MAX_POSSIBLE_PHYSMEM_BITS 52
+
+#else /* CONFIG_X86_5LEVEL */
+
+/*
+ * PGDIR_SHIFT determines what a top-level page table entry can map
+ */
+#define PGDIR_SHIFT 39
+#define PTRS_PER_PGD 512
+#define MAX_PTRS_PER_P4D 1
+
+#endif /* CONFIG_X86_5LEVEL */
+
+/*
* 3rd level page
*/
#define PUD_SHIFT 30
@@ -51,13 +103,115 @@ typedef struct { pteval_t pte; } pte_t;
#define PGDIR_SIZE (_AC(1, UL) << PGDIR_SHIFT)
#define PGDIR_MASK (~(PGDIR_SIZE - 1))
-/* See Documentation/x86/x86_64/mm.txt for a description of the memory map. */
-#define MAXMEM _AC(__AC(1, UL) << MAX_PHYSMEM_BITS, UL)
-#define VMALLOC_START _AC(0xffffc90000000000, UL)
-#define VMALLOC_END _AC(0xffffe8ffffffffff, UL)
-#define VMEMMAP_START _AC(0xffffea0000000000, UL)
-#define MODULES_VADDR _AC(0xffffffffa0000000, UL)
-#define MODULES_END _AC(0xffffffffff000000, UL)
-#define MODULES_LEN (MODULES_END - MODULES_VADDR)
+/*
+ * See Documentation/arch/x86/x86_64/mm.rst for a description of the memory map.
+ *
+ * Be very careful vs. KASLR when changing anything here. The KASLR address
+ * range must not overlap with anything except the KASAN shadow area, which
+ * is correct as KASAN disables KASLR.
+ */
+#define MAXMEM (1UL << MAX_PHYSMEM_BITS)
+
+#define GUARD_HOLE_PGD_ENTRY -256UL
+#define GUARD_HOLE_SIZE (16UL << PGDIR_SHIFT)
+#define GUARD_HOLE_BASE_ADDR (GUARD_HOLE_PGD_ENTRY << PGDIR_SHIFT)
+#define GUARD_HOLE_END_ADDR (GUARD_HOLE_BASE_ADDR + GUARD_HOLE_SIZE)
+
+#define LDT_PGD_ENTRY -240UL
+#define LDT_BASE_ADDR (LDT_PGD_ENTRY << PGDIR_SHIFT)
+#define LDT_END_ADDR (LDT_BASE_ADDR + PGDIR_SIZE)
+
+#define __VMALLOC_BASE_L4 0xffffc90000000000UL
+#define __VMALLOC_BASE_L5 0xffa0000000000000UL
+
+#define VMALLOC_SIZE_TB_L4 32UL
+#define VMALLOC_SIZE_TB_L5 12800UL
+
+#define __VMEMMAP_BASE_L4 0xffffea0000000000UL
+#define __VMEMMAP_BASE_L5 0xffd4000000000000UL
+
+#ifdef CONFIG_DYNAMIC_MEMORY_LAYOUT
+# define VMALLOC_START vmalloc_base
+# define VMALLOC_SIZE_TB (pgtable_l5_enabled() ? VMALLOC_SIZE_TB_L5 : VMALLOC_SIZE_TB_L4)
+# define VMEMMAP_START vmemmap_base
+#else
+# define VMALLOC_START __VMALLOC_BASE_L4
+# define VMALLOC_SIZE_TB VMALLOC_SIZE_TB_L4
+# define VMEMMAP_START __VMEMMAP_BASE_L4
+#endif /* CONFIG_DYNAMIC_MEMORY_LAYOUT */
+
+/*
+ * End of the region for which vmalloc page tables are pre-allocated.
+ * For non-KMSAN builds, this is the same as VMALLOC_END.
+ * For KMSAN builds, VMALLOC_START..VMEMORY_END is 4 times bigger than
+ * VMALLOC_START..VMALLOC_END (see below).
+ */
+#define VMEMORY_END (VMALLOC_START + (VMALLOC_SIZE_TB << 40) - 1)
+
+#ifndef CONFIG_KMSAN
+#define VMALLOC_END VMEMORY_END
+#else
+/*
+ * In KMSAN builds vmalloc area is four times smaller, and the remaining 3/4
+ * are used to keep the metadata for virtual pages. The memory formerly
+ * belonging to vmalloc area is now laid out as follows:
+ *
+ * 1st quarter: VMALLOC_START to VMALLOC_END - new vmalloc area
+ * 2nd quarter: KMSAN_VMALLOC_SHADOW_START to
+ * VMALLOC_END+KMSAN_VMALLOC_SHADOW_OFFSET - vmalloc area shadow
+ * 3rd quarter: KMSAN_VMALLOC_ORIGIN_START to
+ * VMALLOC_END+KMSAN_VMALLOC_ORIGIN_OFFSET - vmalloc area origins
+ * 4th quarter: KMSAN_MODULES_SHADOW_START to KMSAN_MODULES_ORIGIN_START
+ * - shadow for modules,
+ * KMSAN_MODULES_ORIGIN_START to
+ * KMSAN_MODULES_ORIGIN_START + MODULES_LEN - origins for modules.
+ */
+#define VMALLOC_QUARTER_SIZE ((VMALLOC_SIZE_TB << 40) >> 2)
+#define VMALLOC_END (VMALLOC_START + VMALLOC_QUARTER_SIZE - 1)
+
+/*
+ * vmalloc metadata addresses are calculated by adding shadow/origin offsets
+ * to vmalloc address.
+ */
+#define KMSAN_VMALLOC_SHADOW_OFFSET VMALLOC_QUARTER_SIZE
+#define KMSAN_VMALLOC_ORIGIN_OFFSET (VMALLOC_QUARTER_SIZE << 1)
+
+#define KMSAN_VMALLOC_SHADOW_START (VMALLOC_START + KMSAN_VMALLOC_SHADOW_OFFSET)
+#define KMSAN_VMALLOC_ORIGIN_START (VMALLOC_START + KMSAN_VMALLOC_ORIGIN_OFFSET)
+
+/*
+ * The shadow/origin for modules are placed one by one in the last 1/4 of
+ * vmalloc space.
+ */
+#define KMSAN_MODULES_SHADOW_START (VMALLOC_END + KMSAN_VMALLOC_ORIGIN_OFFSET + 1)
+#define KMSAN_MODULES_ORIGIN_START (KMSAN_MODULES_SHADOW_START + MODULES_LEN)
+#endif /* CONFIG_KMSAN */
+
+#define MODULES_VADDR (__START_KERNEL_map + KERNEL_IMAGE_SIZE)
+/* The module sections ends with the start of the fixmap */
+#ifndef CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP
+# define MODULES_END _AC(0xffffffffff000000, UL)
+#else
+# define MODULES_END _AC(0xfffffffffe000000, UL)
+#endif
+#define MODULES_LEN (MODULES_END - MODULES_VADDR)
+
+#define ESPFIX_PGD_ENTRY _AC(-2, UL)
+#define ESPFIX_BASE_ADDR (ESPFIX_PGD_ENTRY << P4D_SHIFT)
+
+#define CPU_ENTRY_AREA_PGD _AC(-4, UL)
+#define CPU_ENTRY_AREA_BASE (CPU_ENTRY_AREA_PGD << P4D_SHIFT)
+
+#define EFI_VA_START ( -4 * (_AC(1, UL) << 30))
+#define EFI_VA_END (-68 * (_AC(1, UL) << 30))
+
+#define EARLY_DYNAMIC_PAGE_TABLES 64
+
+#define PGD_KERNEL_START ((PAGE_SIZE / 2) / sizeof(pgd_t))
+
+/*
+ * We borrow bit 3 to remember PG_anon_exclusive.
+ */
+#define _PAGE_SWP_EXCLUSIVE _PAGE_PWT
#endif /* _ASM_X86_PGTABLE_64_DEFS_H */
diff --git a/arch/x86/include/asm/pgtable_areas.h b/arch/x86/include/asm/pgtable_areas.h
new file mode 100644
index 000000000000..4f056fb88174
--- /dev/null
+++ b/arch/x86/include/asm/pgtable_areas.h
@@ -0,0 +1,22 @@
+#ifndef _ASM_X86_PGTABLE_AREAS_H
+#define _ASM_X86_PGTABLE_AREAS_H
+
+#ifdef CONFIG_X86_32
+# include <asm/pgtable_32_areas.h>
+#endif
+
+/* Single page reserved for the readonly IDT mapping: */
+#define CPU_ENTRY_AREA_RO_IDT CPU_ENTRY_AREA_BASE
+#define CPU_ENTRY_AREA_PER_CPU (CPU_ENTRY_AREA_RO_IDT + PAGE_SIZE)
+
+#define CPU_ENTRY_AREA_RO_IDT_VADDR ((void *)CPU_ENTRY_AREA_RO_IDT)
+
+#ifdef CONFIG_X86_32
+#define CPU_ENTRY_AREA_MAP_SIZE (CPU_ENTRY_AREA_PER_CPU + \
+ (CPU_ENTRY_AREA_SIZE * NR_CPUS) - \
+ CPU_ENTRY_AREA_BASE)
+#else
+#define CPU_ENTRY_AREA_MAP_SIZE P4D_SIZE
+#endif
+
+#endif /* _ASM_X86_PGTABLE_AREAS_H */
diff --git a/arch/x86/include/asm/pgtable_types.h b/arch/x86/include/asm/pgtable_types.h
index 7db7723d1f32..447d4bee25c4 100644
--- a/arch/x86/include/asm/pgtable_types.h
+++ b/arch/x86/include/asm/pgtable_types.h
@@ -1,10 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PGTABLE_DEFS_H
#define _ASM_X86_PGTABLE_DEFS_H
#include <linux/const.h>
-#include <asm/page_types.h>
+#include <linux/mem_encrypt.h>
-#define FIRST_USER_ADDRESS 0
+#include <asm/page_types.h>
#define _PAGE_BIT_PRESENT 0 /* is present */
#define _PAGE_BIT_RW 1 /* writeable */
@@ -16,20 +17,26 @@
#define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */
#define _PAGE_BIT_PAT 7 /* on 4KB pages */
#define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */
-#define _PAGE_BIT_UNUSED1 9 /* available for programmer */
-#define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */
-#define _PAGE_BIT_HIDDEN 11 /* hidden by kmemcheck */
+#define _PAGE_BIT_SOFTW1 9 /* available for programmer */
+#define _PAGE_BIT_SOFTW2 10 /* " */
+#define _PAGE_BIT_SOFTW3 11 /* " */
#define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */
-#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1
-#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1
-#define _PAGE_BIT_SPLITTING _PAGE_BIT_UNUSED1 /* only valid on a PSE pmd */
-#define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
+#define _PAGE_BIT_SOFTW4 58 /* available for programmer */
+#define _PAGE_BIT_PKEY_BIT0 59 /* Protection Keys, bit 1/4 */
+#define _PAGE_BIT_PKEY_BIT1 60 /* Protection Keys, bit 2/4 */
+#define _PAGE_BIT_PKEY_BIT2 61 /* Protection Keys, bit 3/4 */
+#define _PAGE_BIT_PKEY_BIT3 62 /* Protection Keys, bit 4/4 */
+#define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */
+
+#define _PAGE_BIT_SPECIAL _PAGE_BIT_SOFTW1
+#define _PAGE_BIT_CPA_TEST _PAGE_BIT_SOFTW1
+#define _PAGE_BIT_UFFD_WP _PAGE_BIT_SOFTW2 /* userfaultfd wrprotected */
+#define _PAGE_BIT_SOFT_DIRTY _PAGE_BIT_SOFTW3 /* software dirty tracking */
+#define _PAGE_BIT_DEVMAP _PAGE_BIT_SOFTW4
/* If _PAGE_BIT_PRESENT is clear, we use these: */
/* - if the user mapped it with PROT_NONE; pte_present gives true */
#define _PAGE_BIT_PROTNONE _PAGE_BIT_GLOBAL
-/* - set: nonlinear file mapping, saved PTE; unset:swap */
-#define _PAGE_BIT_FILE _PAGE_BIT_DIRTY
#define _PAGE_PRESENT (_AT(pteval_t, 1) << _PAGE_BIT_PRESENT)
#define _PAGE_RW (_AT(pteval_t, 1) << _PAGE_BIT_RW)
@@ -40,120 +47,188 @@
#define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY)
#define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE)
#define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL)
-#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1)
-#define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP)
+#define _PAGE_SOFTW1 (_AT(pteval_t, 1) << _PAGE_BIT_SOFTW1)
+#define _PAGE_SOFTW2 (_AT(pteval_t, 1) << _PAGE_BIT_SOFTW2)
+#define _PAGE_SOFTW3 (_AT(pteval_t, 1) << _PAGE_BIT_SOFTW3)
#define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT)
#define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE)
#define _PAGE_SPECIAL (_AT(pteval_t, 1) << _PAGE_BIT_SPECIAL)
#define _PAGE_CPA_TEST (_AT(pteval_t, 1) << _PAGE_BIT_CPA_TEST)
-#define _PAGE_SPLITTING (_AT(pteval_t, 1) << _PAGE_BIT_SPLITTING)
-#define __HAVE_ARCH_PTE_SPECIAL
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+#define _PAGE_PKEY_BIT0 (_AT(pteval_t, 1) << _PAGE_BIT_PKEY_BIT0)
+#define _PAGE_PKEY_BIT1 (_AT(pteval_t, 1) << _PAGE_BIT_PKEY_BIT1)
+#define _PAGE_PKEY_BIT2 (_AT(pteval_t, 1) << _PAGE_BIT_PKEY_BIT2)
+#define _PAGE_PKEY_BIT3 (_AT(pteval_t, 1) << _PAGE_BIT_PKEY_BIT3)
+#else
+#define _PAGE_PKEY_BIT0 (_AT(pteval_t, 0))
+#define _PAGE_PKEY_BIT1 (_AT(pteval_t, 0))
+#define _PAGE_PKEY_BIT2 (_AT(pteval_t, 0))
+#define _PAGE_PKEY_BIT3 (_AT(pteval_t, 0))
+#endif
+
+#define _PAGE_PKEY_MASK (_PAGE_PKEY_BIT0 | \
+ _PAGE_PKEY_BIT1 | \
+ _PAGE_PKEY_BIT2 | \
+ _PAGE_PKEY_BIT3)
+
+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
+#define _PAGE_KNL_ERRATUM_MASK (_PAGE_DIRTY | _PAGE_ACCESSED)
+#else
+#define _PAGE_KNL_ERRATUM_MASK 0
+#endif
-#ifdef CONFIG_KMEMCHECK
-#define _PAGE_HIDDEN (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN)
+#ifdef CONFIG_MEM_SOFT_DIRTY
+#define _PAGE_SOFT_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_SOFT_DIRTY)
+#else
+#define _PAGE_SOFT_DIRTY (_AT(pteval_t, 0))
+#endif
+
+/*
+ * Tracking soft dirty bit when a page goes to a swap is tricky.
+ * We need a bit which can be stored in pte _and_ not conflict
+ * with swap entry format. On x86 bits 1-4 are *not* involved
+ * into swap entry computation, but bit 7 is used for thp migration,
+ * so we borrow bit 1 for soft dirty tracking.
+ *
+ * Please note that this bit must be treated as swap dirty page
+ * mark if and only if the PTE/PMD has present bit clear!
+ */
+#ifdef CONFIG_MEM_SOFT_DIRTY
+#define _PAGE_SWP_SOFT_DIRTY _PAGE_RW
#else
-#define _PAGE_HIDDEN (_AT(pteval_t, 0))
+#define _PAGE_SWP_SOFT_DIRTY (_AT(pteval_t, 0))
+#endif
+
+#ifdef CONFIG_HAVE_ARCH_USERFAULTFD_WP
+#define _PAGE_UFFD_WP (_AT(pteval_t, 1) << _PAGE_BIT_UFFD_WP)
+#define _PAGE_SWP_UFFD_WP _PAGE_USER
+#else
+#define _PAGE_UFFD_WP (_AT(pteval_t, 0))
+#define _PAGE_SWP_UFFD_WP (_AT(pteval_t, 0))
#endif
#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE)
#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX)
+#define _PAGE_DEVMAP (_AT(u64, 1) << _PAGE_BIT_DEVMAP)
+#define _PAGE_SOFTW4 (_AT(pteval_t, 1) << _PAGE_BIT_SOFTW4)
#else
#define _PAGE_NX (_AT(pteval_t, 0))
+#define _PAGE_DEVMAP (_AT(pteval_t, 0))
+#define _PAGE_SOFTW4 (_AT(pteval_t, 0))
#endif
-#define _PAGE_FILE (_AT(pteval_t, 1) << _PAGE_BIT_FILE)
#define _PAGE_PROTNONE (_AT(pteval_t, 1) << _PAGE_BIT_PROTNONE)
-#define _PAGE_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
- _PAGE_ACCESSED | _PAGE_DIRTY)
-#define _KERNPG_TABLE (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | \
- _PAGE_DIRTY)
-
-/* Set of bits not changed in pte_modify */
+/*
+ * Set of bits not changed in pte_modify. The pte's
+ * protection key is treated like _PAGE_RW, for
+ * instance, and is *not* included in this mask since
+ * pte_modify() does modify it.
+ */
#define _PAGE_CHG_MASK (PTE_PFN_MASK | _PAGE_PCD | _PAGE_PWT | \
- _PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY)
+ _PAGE_SPECIAL | _PAGE_ACCESSED | _PAGE_DIRTY | \
+ _PAGE_SOFT_DIRTY | _PAGE_DEVMAP | _PAGE_ENC | \
+ _PAGE_UFFD_WP)
#define _HPAGE_CHG_MASK (_PAGE_CHG_MASK | _PAGE_PSE)
-#define _PAGE_CACHE_MASK (_PAGE_PCD | _PAGE_PWT)
-#define _PAGE_CACHE_WB (0)
-#define _PAGE_CACHE_WC (_PAGE_PWT)
-#define _PAGE_CACHE_UC_MINUS (_PAGE_PCD)
-#define _PAGE_CACHE_UC (_PAGE_PCD | _PAGE_PWT)
-
-#define PAGE_NONE __pgprot(_PAGE_PROTNONE | _PAGE_ACCESSED)
-#define PAGE_SHARED __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER | \
- _PAGE_ACCESSED | _PAGE_NX)
-
-#define PAGE_SHARED_EXEC __pgprot(_PAGE_PRESENT | _PAGE_RW | \
- _PAGE_USER | _PAGE_ACCESSED)
-#define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
- _PAGE_ACCESSED | _PAGE_NX)
-#define PAGE_COPY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
- _PAGE_ACCESSED)
-#define PAGE_COPY PAGE_COPY_NOEXEC
-#define PAGE_READONLY __pgprot(_PAGE_PRESENT | _PAGE_USER | \
- _PAGE_ACCESSED | _PAGE_NX)
-#define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \
- _PAGE_ACCESSED)
-
-#define __PAGE_KERNEL_EXEC \
- (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL)
-#define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX)
-
-#define __PAGE_KERNEL_RO (__PAGE_KERNEL & ~_PAGE_RW)
-#define __PAGE_KERNEL_RX (__PAGE_KERNEL_EXEC & ~_PAGE_RW)
-#define __PAGE_KERNEL_EXEC_NOCACHE (__PAGE_KERNEL_EXEC | _PAGE_PCD | _PAGE_PWT)
-#define __PAGE_KERNEL_WC (__PAGE_KERNEL | _PAGE_CACHE_WC)
-#define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT)
-#define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD)
-#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER)
-#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT)
-#define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE)
-#define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE)
-#define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE)
-
-#define __PAGE_KERNEL_IO (__PAGE_KERNEL | _PAGE_IOMAP)
-#define __PAGE_KERNEL_IO_NOCACHE (__PAGE_KERNEL_NOCACHE | _PAGE_IOMAP)
-#define __PAGE_KERNEL_IO_UC_MINUS (__PAGE_KERNEL_UC_MINUS | _PAGE_IOMAP)
-#define __PAGE_KERNEL_IO_WC (__PAGE_KERNEL_WC | _PAGE_IOMAP)
-
-#define PAGE_KERNEL __pgprot(__PAGE_KERNEL)
-#define PAGE_KERNEL_RO __pgprot(__PAGE_KERNEL_RO)
-#define PAGE_KERNEL_EXEC __pgprot(__PAGE_KERNEL_EXEC)
-#define PAGE_KERNEL_RX __pgprot(__PAGE_KERNEL_RX)
-#define PAGE_KERNEL_WC __pgprot(__PAGE_KERNEL_WC)
-#define PAGE_KERNEL_NOCACHE __pgprot(__PAGE_KERNEL_NOCACHE)
-#define PAGE_KERNEL_UC_MINUS __pgprot(__PAGE_KERNEL_UC_MINUS)
-#define PAGE_KERNEL_EXEC_NOCACHE __pgprot(__PAGE_KERNEL_EXEC_NOCACHE)
-#define PAGE_KERNEL_LARGE __pgprot(__PAGE_KERNEL_LARGE)
-#define PAGE_KERNEL_LARGE_NOCACHE __pgprot(__PAGE_KERNEL_LARGE_NOCACHE)
-#define PAGE_KERNEL_LARGE_EXEC __pgprot(__PAGE_KERNEL_LARGE_EXEC)
-#define PAGE_KERNEL_VSYSCALL __pgprot(__PAGE_KERNEL_VSYSCALL)
-#define PAGE_KERNEL_VSYSCALL_NOCACHE __pgprot(__PAGE_KERNEL_VSYSCALL_NOCACHE)
-
-#define PAGE_KERNEL_IO __pgprot(__PAGE_KERNEL_IO)
-#define PAGE_KERNEL_IO_NOCACHE __pgprot(__PAGE_KERNEL_IO_NOCACHE)
-#define PAGE_KERNEL_IO_UC_MINUS __pgprot(__PAGE_KERNEL_IO_UC_MINUS)
-#define PAGE_KERNEL_IO_WC __pgprot(__PAGE_KERNEL_IO_WC)
-
-/* xwr */
-#define __P000 PAGE_NONE
-#define __P001 PAGE_READONLY
-#define __P010 PAGE_COPY
-#define __P011 PAGE_COPY
-#define __P100 PAGE_READONLY_EXEC
-#define __P101 PAGE_READONLY_EXEC
-#define __P110 PAGE_COPY_EXEC
-#define __P111 PAGE_COPY_EXEC
-
-#define __S000 PAGE_NONE
-#define __S001 PAGE_READONLY
-#define __S010 PAGE_SHARED
-#define __S011 PAGE_SHARED
-#define __S100 PAGE_READONLY_EXEC
-#define __S101 PAGE_READONLY_EXEC
-#define __S110 PAGE_SHARED_EXEC
-#define __S111 PAGE_SHARED_EXEC
+/*
+ * The cache modes defined here are used to translate between pure SW usage
+ * and the HW defined cache mode bits and/or PAT entries.
+ *
+ * The resulting bits for PWT, PCD and PAT should be chosen in a way
+ * to have the WB mode at index 0 (all bits clear). This is the default
+ * right now and likely would break too much if changed.
+ */
+#ifndef __ASSEMBLY__
+enum page_cache_mode {
+ _PAGE_CACHE_MODE_WB = 0,
+ _PAGE_CACHE_MODE_WC = 1,
+ _PAGE_CACHE_MODE_UC_MINUS = 2,
+ _PAGE_CACHE_MODE_UC = 3,
+ _PAGE_CACHE_MODE_WT = 4,
+ _PAGE_CACHE_MODE_WP = 5,
+
+ _PAGE_CACHE_MODE_NUM = 8
+};
+#endif
+
+#define _PAGE_ENC (_AT(pteval_t, sme_me_mask))
+
+#define _PAGE_CACHE_MASK (_PAGE_PWT | _PAGE_PCD | _PAGE_PAT)
+#define _PAGE_LARGE_CACHE_MASK (_PAGE_PWT | _PAGE_PCD | _PAGE_PAT_LARGE)
+
+#define _PAGE_NOCACHE (cachemode2protval(_PAGE_CACHE_MODE_UC))
+#define _PAGE_CACHE_WP (cachemode2protval(_PAGE_CACHE_MODE_WP))
+
+#define __PP _PAGE_PRESENT
+#define __RW _PAGE_RW
+#define _USR _PAGE_USER
+#define ___A _PAGE_ACCESSED
+#define ___D _PAGE_DIRTY
+#define ___G _PAGE_GLOBAL
+#define __NX _PAGE_NX
+
+#define _ENC _PAGE_ENC
+#define __WP _PAGE_CACHE_WP
+#define __NC _PAGE_NOCACHE
+#define _PSE _PAGE_PSE
+
+#define pgprot_val(x) ((x).pgprot)
+#define __pgprot(x) ((pgprot_t) { (x) } )
+#define __pg(x) __pgprot(x)
+
+#define PAGE_NONE __pg( 0| 0| 0|___A| 0| 0| 0|___G)
+#define PAGE_SHARED __pg(__PP|__RW|_USR|___A|__NX| 0| 0| 0)
+#define PAGE_SHARED_EXEC __pg(__PP|__RW|_USR|___A| 0| 0| 0| 0)
+#define PAGE_COPY_NOEXEC __pg(__PP| 0|_USR|___A|__NX| 0| 0| 0)
+#define PAGE_COPY_EXEC __pg(__PP| 0|_USR|___A| 0| 0| 0| 0)
+#define PAGE_COPY __pg(__PP| 0|_USR|___A|__NX| 0| 0| 0)
+#define PAGE_READONLY __pg(__PP| 0|_USR|___A|__NX| 0| 0| 0)
+#define PAGE_READONLY_EXEC __pg(__PP| 0|_USR|___A| 0| 0| 0| 0)
+
+#define __PAGE_KERNEL (__PP|__RW| 0|___A|__NX|___D| 0|___G)
+#define __PAGE_KERNEL_EXEC (__PP|__RW| 0|___A| 0|___D| 0|___G)
+#define _KERNPG_TABLE_NOENC (__PP|__RW| 0|___A| 0|___D| 0| 0)
+#define _KERNPG_TABLE (__PP|__RW| 0|___A| 0|___D| 0| 0| _ENC)
+#define _PAGE_TABLE_NOENC (__PP|__RW|_USR|___A| 0|___D| 0| 0)
+#define _PAGE_TABLE (__PP|__RW|_USR|___A| 0|___D| 0| 0| _ENC)
+#define __PAGE_KERNEL_RO (__PP| 0| 0|___A|__NX|___D| 0|___G)
+#define __PAGE_KERNEL_ROX (__PP| 0| 0|___A| 0|___D| 0|___G)
+#define __PAGE_KERNEL_NOCACHE (__PP|__RW| 0|___A|__NX|___D| 0|___G| __NC)
+#define __PAGE_KERNEL_VVAR (__PP| 0|_USR|___A|__NX|___D| 0|___G)
+#define __PAGE_KERNEL_LARGE (__PP|__RW| 0|___A|__NX|___D|_PSE|___G)
+#define __PAGE_KERNEL_LARGE_EXEC (__PP|__RW| 0|___A| 0|___D|_PSE|___G)
+#define __PAGE_KERNEL_WP (__PP|__RW| 0|___A|__NX|___D| 0|___G| __WP)
+
+
+#define __PAGE_KERNEL_IO __PAGE_KERNEL
+#define __PAGE_KERNEL_IO_NOCACHE __PAGE_KERNEL_NOCACHE
+
+
+#ifndef __ASSEMBLY__
+
+#define __PAGE_KERNEL_ENC (__PAGE_KERNEL | _ENC)
+#define __PAGE_KERNEL_ENC_WP (__PAGE_KERNEL_WP | _ENC)
+#define __PAGE_KERNEL_NOENC (__PAGE_KERNEL | 0)
+#define __PAGE_KERNEL_NOENC_WP (__PAGE_KERNEL_WP | 0)
+
+#define __pgprot_mask(x) __pgprot((x) & __default_kernel_pte_mask)
+
+#define PAGE_KERNEL __pgprot_mask(__PAGE_KERNEL | _ENC)
+#define PAGE_KERNEL_NOENC __pgprot_mask(__PAGE_KERNEL | 0)
+#define PAGE_KERNEL_RO __pgprot_mask(__PAGE_KERNEL_RO | _ENC)
+#define PAGE_KERNEL_EXEC __pgprot_mask(__PAGE_KERNEL_EXEC | _ENC)
+#define PAGE_KERNEL_EXEC_NOENC __pgprot_mask(__PAGE_KERNEL_EXEC | 0)
+#define PAGE_KERNEL_ROX __pgprot_mask(__PAGE_KERNEL_ROX | _ENC)
+#define PAGE_KERNEL_NOCACHE __pgprot_mask(__PAGE_KERNEL_NOCACHE | _ENC)
+#define PAGE_KERNEL_LARGE __pgprot_mask(__PAGE_KERNEL_LARGE | _ENC)
+#define PAGE_KERNEL_LARGE_EXEC __pgprot_mask(__PAGE_KERNEL_LARGE_EXEC | _ENC)
+#define PAGE_KERNEL_VVAR __pgprot_mask(__PAGE_KERNEL_VVAR | _ENC)
+
+#define PAGE_KERNEL_IO __pgprot_mask(__PAGE_KERNEL_IO)
+#define PAGE_KERNEL_IO_NOCACHE __pgprot_mask(__PAGE_KERNEL_IO_NOCACHE)
+
+#endif /* __ASSEMBLY__ */
/*
* early identity mapping pte attrib macros.
@@ -161,44 +236,71 @@
#ifdef CONFIG_X86_64
#define __PAGE_KERNEL_IDENT_LARGE_EXEC __PAGE_KERNEL_LARGE_EXEC
#else
-/*
- * For PDE_IDENT_ATTR include USER bit. As the PDE and PTE protection
- * bits are combined, this will alow user to access the high address mapped
- * VDSO in the presence of CONFIG_COMPAT_VDSO
- */
#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */
-#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */
+#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */
#define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */
#endif
#ifdef CONFIG_X86_32
-# include "pgtable_32_types.h"
+# include <asm/pgtable_32_types.h>
#else
-# include "pgtable_64_types.h"
+# include <asm/pgtable_64_types.h>
#endif
#ifndef __ASSEMBLY__
#include <linux/types.h>
-/* PTE_PFN_MASK extracts the PFN from a (pte|pmd|pud|pgd)val_t */
+/* Extracts the PFN from a (pte|pmd|pud|pgd)val_t of a 4KB page */
#define PTE_PFN_MASK ((pteval_t)PHYSICAL_PAGE_MASK)
-/* PTE_FLAGS_MASK extracts the flags from a (pte|pmd|pud|pgd)val_t */
+/*
+ * Extracts the flags from a (pte|pmd|pud|pgd)val_t
+ * This includes the protection key value.
+ */
#define PTE_FLAGS_MASK (~PTE_PFN_MASK)
typedef struct pgprot { pgprotval_t pgprot; } pgprot_t;
typedef struct { pgdval_t pgd; } pgd_t;
+static inline pgprot_t pgprot_nx(pgprot_t prot)
+{
+ return __pgprot(pgprot_val(prot) | _PAGE_NX);
+}
+#define pgprot_nx pgprot_nx
+
+#ifdef CONFIG_X86_PAE
+
+/*
+ * PHYSICAL_PAGE_MASK might be non-constant when SME is compiled in, so we can't
+ * use it here.
+ */
+
+#define PGD_PAE_PAGE_MASK ((signed long)PAGE_MASK)
+#define PGD_PAE_PHYS_MASK (((1ULL << __PHYSICAL_MASK_SHIFT)-1) & PGD_PAE_PAGE_MASK)
+
+/*
+ * PAE allows Base Address, P, PWT, PCD and AVL bits to be set in PGD entries.
+ * All other bits are Reserved MBZ
+ */
+#define PGD_ALLOWED_BITS (PGD_PAE_PHYS_MASK | _PAGE_PRESENT | \
+ _PAGE_PWT | _PAGE_PCD | \
+ _PAGE_SOFTW1 | _PAGE_SOFTW2 | _PAGE_SOFTW3)
+
+#else
+/* No need to mask any bits for !PAE */
+#define PGD_ALLOWED_BITS (~0ULL)
+#endif
+
static inline pgd_t native_make_pgd(pgdval_t val)
{
- return (pgd_t) { val };
+ return (pgd_t) { val & PGD_ALLOWED_BITS };
}
static inline pgdval_t native_pgd_val(pgd_t pgd)
{
- return pgd.pgd;
+ return pgd.pgd & PGD_ALLOWED_BITS;
}
static inline pgdval_t pgd_flags(pgd_t pgd)
@@ -206,7 +308,33 @@ static inline pgdval_t pgd_flags(pgd_t pgd)
return native_pgd_val(pgd) & PTE_FLAGS_MASK;
}
-#if PAGETABLE_LEVELS > 3
+#if CONFIG_PGTABLE_LEVELS > 4
+typedef struct { p4dval_t p4d; } p4d_t;
+
+static inline p4d_t native_make_p4d(pudval_t val)
+{
+ return (p4d_t) { val };
+}
+
+static inline p4dval_t native_p4d_val(p4d_t p4d)
+{
+ return p4d.p4d;
+}
+#else
+#include <asm-generic/pgtable-nop4d.h>
+
+static inline p4d_t native_make_p4d(pudval_t val)
+{
+ return (p4d_t) { .pgd = native_make_pgd((pgdval_t)val) };
+}
+
+static inline p4dval_t native_p4d_val(p4d_t p4d)
+{
+ return native_pgd_val(p4d.pgd);
+}
+#endif
+
+#if CONFIG_PGTABLE_LEVELS > 3
typedef struct { pudval_t pud; } pud_t;
static inline pud_t native_make_pud(pmdval_t val)
@@ -221,18 +349,21 @@ static inline pudval_t native_pud_val(pud_t pud)
#else
#include <asm-generic/pgtable-nopud.h>
+static inline pud_t native_make_pud(pudval_t val)
+{
+ return (pud_t) { .p4d.pgd = native_make_pgd(val) };
+}
+
static inline pudval_t native_pud_val(pud_t pud)
{
- return native_pgd_val(pud.pgd);
+ return native_pgd_val(pud.p4d.pgd);
}
#endif
-#if PAGETABLE_LEVELS > 2
-typedef struct { pmdval_t pmd; } pmd_t;
-
+#if CONFIG_PGTABLE_LEVELS > 2
static inline pmd_t native_make_pmd(pmdval_t val)
{
- return (pmd_t) { val };
+ return (pmd_t) { .pmd = val };
}
static inline pmdval_t native_pmd_val(pmd_t pmd)
@@ -242,20 +373,67 @@ static inline pmdval_t native_pmd_val(pmd_t pmd)
#else
#include <asm-generic/pgtable-nopmd.h>
+static inline pmd_t native_make_pmd(pmdval_t val)
+{
+ return (pmd_t) { .pud.p4d.pgd = native_make_pgd(val) };
+}
+
static inline pmdval_t native_pmd_val(pmd_t pmd)
{
- return native_pgd_val(pmd.pud.pgd);
+ return native_pgd_val(pmd.pud.p4d.pgd);
}
#endif
+static inline p4dval_t p4d_pfn_mask(p4d_t p4d)
+{
+ /* No 512 GiB huge pages yet */
+ return PTE_PFN_MASK;
+}
+
+static inline p4dval_t p4d_flags_mask(p4d_t p4d)
+{
+ return ~p4d_pfn_mask(p4d);
+}
+
+static inline p4dval_t p4d_flags(p4d_t p4d)
+{
+ return native_p4d_val(p4d) & p4d_flags_mask(p4d);
+}
+
+static inline pudval_t pud_pfn_mask(pud_t pud)
+{
+ if (native_pud_val(pud) & _PAGE_PSE)
+ return PHYSICAL_PUD_PAGE_MASK;
+ else
+ return PTE_PFN_MASK;
+}
+
+static inline pudval_t pud_flags_mask(pud_t pud)
+{
+ return ~pud_pfn_mask(pud);
+}
+
static inline pudval_t pud_flags(pud_t pud)
{
- return native_pud_val(pud) & PTE_FLAGS_MASK;
+ return native_pud_val(pud) & pud_flags_mask(pud);
+}
+
+static inline pmdval_t pmd_pfn_mask(pmd_t pmd)
+{
+ if (native_pmd_val(pmd) & _PAGE_PSE)
+ return PHYSICAL_PMD_PAGE_MASK;
+ else
+ return PTE_PFN_MASK;
+}
+
+static inline pmdval_t pmd_flags_mask(pmd_t pmd)
+{
+ return ~pmd_pfn_mask(pmd);
}
static inline pmdval_t pmd_flags(pmd_t pmd)
{
- return native_pmd_val(pmd) & PTE_FLAGS_MASK;
+ return native_pmd_val(pmd) & pmd_flags_mask(pmd);
}
static inline pte_t native_make_pte(pteval_t val)
@@ -273,19 +451,51 @@ static inline pteval_t pte_flags(pte_t pte)
return native_pte_val(pte) & PTE_FLAGS_MASK;
}
-#define pgprot_val(x) ((x).pgprot)
-#define __pgprot(x) ((pgprot_t) { (x) } )
+#define __pte2cm_idx(cb) \
+ ((((cb) >> (_PAGE_BIT_PAT - 2)) & 4) | \
+ (((cb) >> (_PAGE_BIT_PCD - 1)) & 2) | \
+ (((cb) >> _PAGE_BIT_PWT) & 1))
+#define __cm_idx2pte(i) \
+ ((((i) & 4) << (_PAGE_BIT_PAT - 2)) | \
+ (((i) & 2) << (_PAGE_BIT_PCD - 1)) | \
+ (((i) & 1) << _PAGE_BIT_PWT))
+
+unsigned long cachemode2protval(enum page_cache_mode pcm);
+
+static inline pgprotval_t protval_4k_2_large(pgprotval_t val)
+{
+ return (val & ~(_PAGE_PAT | _PAGE_PAT_LARGE)) |
+ ((val & _PAGE_PAT) << (_PAGE_BIT_PAT_LARGE - _PAGE_BIT_PAT));
+}
+static inline pgprot_t pgprot_4k_2_large(pgprot_t pgprot)
+{
+ return __pgprot(protval_4k_2_large(pgprot_val(pgprot)));
+}
+static inline pgprotval_t protval_large_2_4k(pgprotval_t val)
+{
+ return (val & ~(_PAGE_PAT | _PAGE_PAT_LARGE)) |
+ ((val & _PAGE_PAT_LARGE) >>
+ (_PAGE_BIT_PAT_LARGE - _PAGE_BIT_PAT));
+}
+static inline pgprot_t pgprot_large_2_4k(pgprot_t pgprot)
+{
+ return __pgprot(protval_large_2_4k(pgprot_val(pgprot)));
+}
typedef struct page *pgtable_t;
extern pteval_t __supported_pte_mask;
+extern pteval_t __default_kernel_pte_mask;
extern void set_nx(void);
extern int nx_enabled;
#define pgprot_writecombine pgprot_writecombine
extern pgprot_t pgprot_writecombine(pgprot_t prot);
+#define pgprot_writethrough pgprot_writethrough
+extern pgprot_t pgprot_writethrough(pgprot_t prot);
+
/* Indicate that x86 has its own track and untrack pfn vma functions */
#define __HAVE_PFNMAP_TRACKING
@@ -293,28 +503,25 @@ extern pgprot_t pgprot_writecombine(pgprot_t prot);
struct file;
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t vma_prot);
-int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn,
- unsigned long size, pgprot_t *vma_prot);
/* Install a pte for a particular vaddr in kernel space. */
void set_pte_vaddr(unsigned long vaddr, pte_t pte);
#ifdef CONFIG_X86_32
-extern void native_pagetable_setup_start(pgd_t *base);
-extern void native_pagetable_setup_done(pgd_t *base);
+extern void native_pagetable_init(void);
#else
-#define native_pagetable_setup_start x86_init_pgd_noop
-#define native_pagetable_setup_done x86_init_pgd_noop
+#define native_pagetable_init paging_init
#endif
struct seq_file;
extern void arch_report_meminfo(struct seq_file *m);
-enum {
+enum pg_level {
PG_LEVEL_NONE,
PG_LEVEL_4K,
PG_LEVEL_2M,
PG_LEVEL_1G,
+ PG_LEVEL_512G,
PG_LEVEL_NUM
};
@@ -331,7 +538,16 @@ static inline void update_page_count(int level, unsigned long pages) { }
* as a pte too.
*/
extern pte_t *lookup_address(unsigned long address, unsigned int *level);
-
+extern pte_t *lookup_address_in_pgd(pgd_t *pgd, unsigned long address,
+ unsigned int *level);
+extern pmd_t *lookup_pmd_address(unsigned long address);
+extern phys_addr_t slow_virt_to_phys(void *__address);
+extern int __init kernel_map_pages_in_pgd(pgd_t *pgd, u64 pfn,
+ unsigned long address,
+ unsigned numpages,
+ unsigned long page_flags);
+extern int __init kernel_unmap_pages_in_pgd(pgd_t *pgd, unsigned long address,
+ unsigned long numpages);
#endif /* !__ASSEMBLY__ */
#endif /* _ASM_X86_PGTABLE_DEFS_H */
diff --git a/arch/x86/include/asm/pkeys.h b/arch/x86/include/asm/pkeys.h
new file mode 100644
index 000000000000..2e6c04d8a45b
--- /dev/null
+++ b/arch/x86/include/asm/pkeys.h
@@ -0,0 +1,126 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_PKEYS_H
+#define _ASM_X86_PKEYS_H
+
+/*
+ * If more than 16 keys are ever supported, a thorough audit
+ * will be necessary to ensure that the types that store key
+ * numbers and masks have sufficient capacity.
+ */
+#define arch_max_pkey() (cpu_feature_enabled(X86_FEATURE_OSPKE) ? 16 : 1)
+
+extern int arch_set_user_pkey_access(struct task_struct *tsk, int pkey,
+ unsigned long init_val);
+
+static inline bool arch_pkeys_enabled(void)
+{
+ return cpu_feature_enabled(X86_FEATURE_OSPKE);
+}
+
+/*
+ * Try to dedicate one of the protection keys to be used as an
+ * execute-only protection key.
+ */
+extern int __execute_only_pkey(struct mm_struct *mm);
+static inline int execute_only_pkey(struct mm_struct *mm)
+{
+ if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
+ return ARCH_DEFAULT_PKEY;
+
+ return __execute_only_pkey(mm);
+}
+
+extern int __arch_override_mprotect_pkey(struct vm_area_struct *vma,
+ int prot, int pkey);
+static inline int arch_override_mprotect_pkey(struct vm_area_struct *vma,
+ int prot, int pkey)
+{
+ if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
+ return 0;
+
+ return __arch_override_mprotect_pkey(vma, prot, pkey);
+}
+
+#define ARCH_VM_PKEY_FLAGS (VM_PKEY_BIT0 | VM_PKEY_BIT1 | VM_PKEY_BIT2 | VM_PKEY_BIT3)
+
+#define mm_pkey_allocation_map(mm) (mm->context.pkey_allocation_map)
+#define mm_set_pkey_allocated(mm, pkey) do { \
+ mm_pkey_allocation_map(mm) |= (1U << pkey); \
+} while (0)
+#define mm_set_pkey_free(mm, pkey) do { \
+ mm_pkey_allocation_map(mm) &= ~(1U << pkey); \
+} while (0)
+
+static inline
+bool mm_pkey_is_allocated(struct mm_struct *mm, int pkey)
+{
+ /*
+ * "Allocated" pkeys are those that have been returned
+ * from pkey_alloc() or pkey 0 which is allocated
+ * implicitly when the mm is created.
+ */
+ if (pkey < 0)
+ return false;
+ if (pkey >= arch_max_pkey())
+ return false;
+ /*
+ * The exec-only pkey is set in the allocation map, but
+ * is not available to any of the user interfaces like
+ * mprotect_pkey().
+ */
+ if (pkey == mm->context.execute_only_pkey)
+ return false;
+
+ return mm_pkey_allocation_map(mm) & (1U << pkey);
+}
+
+/*
+ * Returns a positive, 4-bit key on success, or -1 on failure.
+ */
+static inline
+int mm_pkey_alloc(struct mm_struct *mm)
+{
+ /*
+ * Note: this is the one and only place we make sure
+ * that the pkey is valid as far as the hardware is
+ * concerned. The rest of the kernel trusts that
+ * only good, valid pkeys come out of here.
+ */
+ u16 all_pkeys_mask = ((1U << arch_max_pkey()) - 1);
+ int ret;
+
+ /*
+ * Are we out of pkeys? We must handle this specially
+ * because ffz() behavior is undefined if there are no
+ * zeros.
+ */
+ if (mm_pkey_allocation_map(mm) == all_pkeys_mask)
+ return -1;
+
+ ret = ffz(mm_pkey_allocation_map(mm));
+
+ mm_set_pkey_allocated(mm, ret);
+
+ return ret;
+}
+
+static inline
+int mm_pkey_free(struct mm_struct *mm, int pkey)
+{
+ if (!mm_pkey_is_allocated(mm, pkey))
+ return -EINVAL;
+
+ mm_set_pkey_free(mm, pkey);
+
+ return 0;
+}
+
+static inline int vma_pkey(struct vm_area_struct *vma)
+{
+ unsigned long vma_pkey_mask = VM_PKEY_BIT0 | VM_PKEY_BIT1 |
+ VM_PKEY_BIT2 | VM_PKEY_BIT3;
+
+ return (vma->vm_flags & vma_pkey_mask) >> VM_PKEY_SHIFT;
+}
+
+#endif /*_ASM_X86_PKEYS_H */
diff --git a/arch/x86/include/asm/pkru.h b/arch/x86/include/asm/pkru.h
new file mode 100644
index 000000000000..74f0a2d34ffd
--- /dev/null
+++ b/arch/x86/include/asm/pkru.h
@@ -0,0 +1,62 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_PKRU_H
+#define _ASM_X86_PKRU_H
+
+#include <asm/cpufeature.h>
+
+#define PKRU_AD_BIT 0x1u
+#define PKRU_WD_BIT 0x2u
+#define PKRU_BITS_PER_PKEY 2
+
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+extern u32 init_pkru_value;
+#define pkru_get_init_value() READ_ONCE(init_pkru_value)
+#else
+#define init_pkru_value 0
+#define pkru_get_init_value() 0
+#endif
+
+static inline bool __pkru_allows_read(u32 pkru, u16 pkey)
+{
+ int pkru_pkey_bits = pkey * PKRU_BITS_PER_PKEY;
+ return !(pkru & (PKRU_AD_BIT << pkru_pkey_bits));
+}
+
+static inline bool __pkru_allows_write(u32 pkru, u16 pkey)
+{
+ int pkru_pkey_bits = pkey * PKRU_BITS_PER_PKEY;
+ /*
+ * Access-disable disables writes too so we need to check
+ * both bits here.
+ */
+ return !(pkru & ((PKRU_AD_BIT|PKRU_WD_BIT) << pkru_pkey_bits));
+}
+
+static inline u32 read_pkru(void)
+{
+ if (cpu_feature_enabled(X86_FEATURE_OSPKE))
+ return rdpkru();
+ return 0;
+}
+
+static inline void write_pkru(u32 pkru)
+{
+ if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
+ return;
+ /*
+ * WRPKRU is relatively expensive compared to RDPKRU.
+ * Avoid WRPKRU when it would not change the value.
+ */
+ if (pkru != rdpkru())
+ wrpkru(pkru);
+}
+
+static inline void pkru_write_default(void)
+{
+ if (!cpu_feature_enabled(X86_FEATURE_OSPKE))
+ return;
+
+ wrpkru(pkru_get_init_value());
+}
+
+#endif
diff --git a/arch/x86/include/asm/platform_sst_audio.h b/arch/x86/include/asm/platform_sst_audio.h
new file mode 100644
index 000000000000..40f92270515b
--- /dev/null
+++ b/arch/x86/include/asm/platform_sst_audio.h
@@ -0,0 +1,136 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * platform_sst_audio.h: sst audio platform data header file
+ *
+ * Copyright (C) 2012-14 Intel Corporation
+ * Author: Jeeja KP <jeeja.kp@intel.com>
+ * Omair Mohammed Abdullah <omair.m.abdullah@intel.com>
+ * Vinod Koul ,vinod.koul@intel.com>
+ */
+#ifndef _PLATFORM_SST_AUDIO_H_
+#define _PLATFORM_SST_AUDIO_H_
+
+#define MAX_NUM_STREAMS_MRFLD 25
+#define MAX_NUM_STREAMS MAX_NUM_STREAMS_MRFLD
+
+enum sst_audio_task_id_mrfld {
+ SST_TASK_ID_NONE = 0,
+ SST_TASK_ID_SBA = 1,
+ SST_TASK_ID_MEDIA = 3,
+ SST_TASK_ID_MAX = SST_TASK_ID_MEDIA,
+};
+
+/* Device IDs for Merrifield are Pipe IDs,
+ * ref: DSP spec v0.75 */
+enum sst_audio_device_id_mrfld {
+ /* Output pipeline IDs */
+ PIPE_ID_OUT_START = 0x0,
+ PIPE_CODEC_OUT0 = 0x2,
+ PIPE_CODEC_OUT1 = 0x3,
+ PIPE_SPROT_LOOP_OUT = 0x4,
+ PIPE_MEDIA_LOOP1_OUT = 0x5,
+ PIPE_MEDIA_LOOP2_OUT = 0x6,
+ PIPE_VOIP_OUT = 0xC,
+ PIPE_PCM0_OUT = 0xD,
+ PIPE_PCM1_OUT = 0xE,
+ PIPE_PCM2_OUT = 0xF,
+ PIPE_MEDIA0_OUT = 0x12,
+ PIPE_MEDIA1_OUT = 0x13,
+/* Input Pipeline IDs */
+ PIPE_ID_IN_START = 0x80,
+ PIPE_CODEC_IN0 = 0x82,
+ PIPE_CODEC_IN1 = 0x83,
+ PIPE_SPROT_LOOP_IN = 0x84,
+ PIPE_MEDIA_LOOP1_IN = 0x85,
+ PIPE_MEDIA_LOOP2_IN = 0x86,
+ PIPE_VOIP_IN = 0x8C,
+ PIPE_PCM0_IN = 0x8D,
+ PIPE_PCM1_IN = 0x8E,
+ PIPE_MEDIA0_IN = 0x8F,
+ PIPE_MEDIA1_IN = 0x90,
+ PIPE_MEDIA2_IN = 0x91,
+ PIPE_MEDIA3_IN = 0x9C,
+ PIPE_RSVD = 0xFF,
+};
+
+/* The stream map for each platform consists of an array of the below
+ * stream map structure.
+ */
+struct sst_dev_stream_map {
+ u8 dev_num; /* device id */
+ u8 subdev_num; /* substream */
+ u8 direction;
+ u8 device_id; /* fw id */
+ u8 task_id; /* fw task */
+ u8 status;
+};
+
+struct sst_platform_data {
+ /* Intel software platform id*/
+ struct sst_dev_stream_map *pdev_strm_map;
+ unsigned int strm_map_size;
+};
+
+struct sst_info {
+ u32 iram_start;
+ u32 iram_end;
+ bool iram_use;
+ u32 dram_start;
+ u32 dram_end;
+ bool dram_use;
+ u32 imr_start;
+ u32 imr_end;
+ bool imr_use;
+ u32 mailbox_start;
+ bool use_elf;
+ bool lpe_viewpt_rqd;
+ unsigned int max_streams;
+ u32 dma_max_len;
+ u8 num_probes;
+};
+
+struct sst_lib_dnld_info {
+ unsigned int mod_base;
+ unsigned int mod_end;
+ unsigned int mod_table_offset;
+ unsigned int mod_table_size;
+ bool mod_ddr_dnld;
+};
+
+struct sst_res_info {
+ unsigned int shim_offset;
+ unsigned int shim_size;
+ unsigned int shim_phy_addr;
+ unsigned int ssp0_offset;
+ unsigned int ssp0_size;
+ unsigned int dma0_offset;
+ unsigned int dma0_size;
+ unsigned int dma1_offset;
+ unsigned int dma1_size;
+ unsigned int iram_offset;
+ unsigned int iram_size;
+ unsigned int dram_offset;
+ unsigned int dram_size;
+ unsigned int mbox_offset;
+ unsigned int mbox_size;
+ unsigned int acpi_lpe_res_index;
+ unsigned int acpi_ddr_index;
+ unsigned int acpi_ipc_irq_index;
+};
+
+struct sst_ipc_info {
+ int ipc_offset;
+ unsigned int mbox_recv_off;
+};
+
+struct sst_platform_info {
+ const struct sst_info *probe_data;
+ const struct sst_ipc_info *ipc_info;
+ const struct sst_res_info *res_info;
+ const struct sst_lib_dnld_info *lib_info;
+ const char *platform;
+ bool streams_lost_on_suspend;
+};
+int add_sst_platform_device(void);
+#endif
+
diff --git a/arch/x86/include/asm/resume-trace.h b/arch/x86/include/asm/pm-trace.h
index 3ff1c2cb1da5..bfa32aa428e5 100644
--- a/arch/x86/include/asm/resume-trace.h
+++ b/arch/x86/include/asm/pm-trace.h
@@ -1,5 +1,6 @@
-#ifndef _ASM_X86_RESUME_TRACE_H
-#define _ASM_X86_RESUME_TRACE_H
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_PM_TRACE_H
+#define _ASM_X86_PM_TRACE_H
#include <asm/asm.h>
@@ -14,8 +15,10 @@ do { \
".previous" \
:"=r" (tracedata) \
: "i" (__LINE__), "i" (__FILE__)); \
- generate_resume_trace(tracedata, user); \
+ generate_pm_trace(tracedata, user); \
} \
} while (0)
-#endif /* _ASM_X86_RESUME_TRACE_H */
+#define TRACE_SUSPEND(user) TRACE_RESUME(user)
+
+#endif /* _ASM_X86_PM_TRACE_H */
diff --git a/arch/x86/include/asm/poll.h b/arch/x86/include/asm/poll.h
deleted file mode 100644
index c98509d3149e..000000000000
--- a/arch/x86/include/asm/poll.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/poll.h>
diff --git a/arch/x86/include/asm/posix_types.h b/arch/x86/include/asm/posix_types.h
index bb7133dc155d..374336e217ff 100644
--- a/arch/x86/include/asm/posix_types.h
+++ b/arch/x86/include/asm/posix_types.h
@@ -1,13 +1,6 @@
-#ifdef __KERNEL__
+/* SPDX-License-Identifier: GPL-2.0 */
# ifdef CONFIG_X86_32
-# include "posix_types_32.h"
+# include <asm/posix_types_32.h>
# else
-# include "posix_types_64.h"
+# include <asm/posix_types_64.h>
# endif
-#else
-# ifdef __i386__
-# include "posix_types_32.h"
-# else
-# include "posix_types_64.h"
-# endif
-#endif
diff --git a/arch/x86/include/asm/posix_types_32.h b/arch/x86/include/asm/posix_types_32.h
deleted file mode 100644
index f7d9adf82e53..000000000000
--- a/arch/x86/include/asm/posix_types_32.h
+++ /dev/null
@@ -1,85 +0,0 @@
-#ifndef _ASM_X86_POSIX_TYPES_32_H
-#define _ASM_X86_POSIX_TYPES_32_H
-
-/*
- * This file is generally used by user-level software, so you need to
- * be a little careful about namespace pollution etc. Also, we cannot
- * assume GCC is being used.
- */
-
-typedef unsigned long __kernel_ino_t;
-typedef unsigned short __kernel_mode_t;
-typedef unsigned short __kernel_nlink_t;
-typedef long __kernel_off_t;
-typedef int __kernel_pid_t;
-typedef unsigned short __kernel_ipc_pid_t;
-typedef unsigned short __kernel_uid_t;
-typedef unsigned short __kernel_gid_t;
-typedef unsigned int __kernel_size_t;
-typedef int __kernel_ssize_t;
-typedef int __kernel_ptrdiff_t;
-typedef long __kernel_time_t;
-typedef long __kernel_suseconds_t;
-typedef long __kernel_clock_t;
-typedef int __kernel_timer_t;
-typedef int __kernel_clockid_t;
-typedef int __kernel_daddr_t;
-typedef char * __kernel_caddr_t;
-typedef unsigned short __kernel_uid16_t;
-typedef unsigned short __kernel_gid16_t;
-typedef unsigned int __kernel_uid32_t;
-typedef unsigned int __kernel_gid32_t;
-
-typedef unsigned short __kernel_old_uid_t;
-typedef unsigned short __kernel_old_gid_t;
-typedef unsigned short __kernel_old_dev_t;
-
-#ifdef __GNUC__
-typedef long long __kernel_loff_t;
-#endif
-
-typedef struct {
- int val[2];
-} __kernel_fsid_t;
-
-#if defined(__KERNEL__)
-
-#undef __FD_SET
-#define __FD_SET(fd,fdsetp) \
- asm volatile("btsl %1,%0": \
- "+m" (*(__kernel_fd_set *)(fdsetp)) \
- : "r" ((int)(fd)))
-
-#undef __FD_CLR
-#define __FD_CLR(fd,fdsetp) \
- asm volatile("btrl %1,%0": \
- "+m" (*(__kernel_fd_set *)(fdsetp)) \
- : "r" ((int) (fd)))
-
-#undef __FD_ISSET
-#define __FD_ISSET(fd,fdsetp) \
- (__extension__ \
- ({ \
- unsigned char __result; \
- asm volatile("btl %1,%2 ; setb %0" \
- : "=q" (__result) \
- : "r" ((int)(fd)), \
- "m" (*(__kernel_fd_set *)(fdsetp))); \
- __result; \
-}))
-
-#undef __FD_ZERO
-#define __FD_ZERO(fdsetp) \
-do { \
- int __d0, __d1; \
- asm volatile("cld ; rep ; stosl" \
- : "=m" (*(__kernel_fd_set *)(fdsetp)), \
- "=&c" (__d0), "=&D" (__d1) \
- : "a" (0), "1" (__FDSET_LONGS), \
- "2" ((__kernel_fd_set *)(fdsetp)) \
- : "memory"); \
-} while (0)
-
-#endif /* defined(__KERNEL__) */
-
-#endif /* _ASM_X86_POSIX_TYPES_32_H */
diff --git a/arch/x86/include/asm/posix_types_64.h b/arch/x86/include/asm/posix_types_64.h
deleted file mode 100644
index eb8d2d92b63e..000000000000
--- a/arch/x86/include/asm/posix_types_64.h
+++ /dev/null
@@ -1,119 +0,0 @@
-#ifndef _ASM_X86_POSIX_TYPES_64_H
-#define _ASM_X86_POSIX_TYPES_64_H
-
-/*
- * This file is generally used by user-level software, so you need to
- * be a little careful about namespace pollution etc. Also, we cannot
- * assume GCC is being used.
- */
-
-typedef unsigned long __kernel_ino_t;
-typedef unsigned int __kernel_mode_t;
-typedef unsigned long __kernel_nlink_t;
-typedef long __kernel_off_t;
-typedef int __kernel_pid_t;
-typedef int __kernel_ipc_pid_t;
-typedef unsigned int __kernel_uid_t;
-typedef unsigned int __kernel_gid_t;
-typedef unsigned long __kernel_size_t;
-typedef long __kernel_ssize_t;
-typedef long __kernel_ptrdiff_t;
-typedef long __kernel_time_t;
-typedef long __kernel_suseconds_t;
-typedef long __kernel_clock_t;
-typedef int __kernel_timer_t;
-typedef int __kernel_clockid_t;
-typedef int __kernel_daddr_t;
-typedef char * __kernel_caddr_t;
-typedef unsigned short __kernel_uid16_t;
-typedef unsigned short __kernel_gid16_t;
-
-#ifdef __GNUC__
-typedef long long __kernel_loff_t;
-#endif
-
-typedef struct {
- int val[2];
-} __kernel_fsid_t;
-
-typedef unsigned short __kernel_old_uid_t;
-typedef unsigned short __kernel_old_gid_t;
-typedef __kernel_uid_t __kernel_uid32_t;
-typedef __kernel_gid_t __kernel_gid32_t;
-
-typedef unsigned long __kernel_old_dev_t;
-
-#ifdef __KERNEL__
-
-#undef __FD_SET
-static inline void __FD_SET(unsigned long fd, __kernel_fd_set *fdsetp)
-{
- unsigned long _tmp = fd / __NFDBITS;
- unsigned long _rem = fd % __NFDBITS;
- fdsetp->fds_bits[_tmp] |= (1UL<<_rem);
-}
-
-#undef __FD_CLR
-static inline void __FD_CLR(unsigned long fd, __kernel_fd_set *fdsetp)
-{
- unsigned long _tmp = fd / __NFDBITS;
- unsigned long _rem = fd % __NFDBITS;
- fdsetp->fds_bits[_tmp] &= ~(1UL<<_rem);
-}
-
-#undef __FD_ISSET
-static inline int __FD_ISSET(unsigned long fd, __const__ __kernel_fd_set *p)
-{
- unsigned long _tmp = fd / __NFDBITS;
- unsigned long _rem = fd % __NFDBITS;
- return (p->fds_bits[_tmp] & (1UL<<_rem)) != 0;
-}
-
-/*
- * This will unroll the loop for the normal constant cases (8 or 32 longs,
- * for 256 and 1024-bit fd_sets respectively)
- */
-#undef __FD_ZERO
-static inline void __FD_ZERO(__kernel_fd_set *p)
-{
- unsigned long *tmp = p->fds_bits;
- int i;
-
- if (__builtin_constant_p(__FDSET_LONGS)) {
- switch (__FDSET_LONGS) {
- case 32:
- tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
- tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
- tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
- tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
- tmp[16] = 0; tmp[17] = 0; tmp[18] = 0; tmp[19] = 0;
- tmp[20] = 0; tmp[21] = 0; tmp[22] = 0; tmp[23] = 0;
- tmp[24] = 0; tmp[25] = 0; tmp[26] = 0; tmp[27] = 0;
- tmp[28] = 0; tmp[29] = 0; tmp[30] = 0; tmp[31] = 0;
- return;
- case 16:
- tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
- tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
- tmp[ 8] = 0; tmp[ 9] = 0; tmp[10] = 0; tmp[11] = 0;
- tmp[12] = 0; tmp[13] = 0; tmp[14] = 0; tmp[15] = 0;
- return;
- case 8:
- tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
- tmp[ 4] = 0; tmp[ 5] = 0; tmp[ 6] = 0; tmp[ 7] = 0;
- return;
- case 4:
- tmp[ 0] = 0; tmp[ 1] = 0; tmp[ 2] = 0; tmp[ 3] = 0;
- return;
- }
- }
- i = __FDSET_LONGS;
- while (i) {
- i--;
- *tmp = 0;
- tmp++;
- }
-}
-
-#endif /* defined(__KERNEL__) */
-
-#endif /* _ASM_X86_POSIX_TYPES_64_H */
diff --git a/arch/x86/include/asm/prctl.h b/arch/x86/include/asm/prctl.h
deleted file mode 100644
index 3ac5032fae09..000000000000
--- a/arch/x86/include/asm/prctl.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _ASM_X86_PRCTL_H
-#define _ASM_X86_PRCTL_H
-
-#define ARCH_SET_GS 0x1001
-#define ARCH_SET_FS 0x1002
-#define ARCH_GET_FS 0x1003
-#define ARCH_GET_GS 0x1004
-
-#endif /* _ASM_X86_PRCTL_H */
diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
new file mode 100644
index 000000000000..2d13f25b1bd8
--- /dev/null
+++ b/arch/x86/include/asm/preempt.h
@@ -0,0 +1,151 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_PREEMPT_H
+#define __ASM_PREEMPT_H
+
+#include <asm/rmwcc.h>
+#include <asm/percpu.h>
+#include <asm/current.h>
+
+#include <linux/thread_info.h>
+#include <linux/static_call_types.h>
+
+/* We use the MSB mostly because its available */
+#define PREEMPT_NEED_RESCHED 0x80000000
+
+/*
+ * We use the PREEMPT_NEED_RESCHED bit as an inverted NEED_RESCHED such
+ * that a decrement hitting 0 means we can and should reschedule.
+ */
+#define PREEMPT_ENABLED (0 + PREEMPT_NEED_RESCHED)
+
+/*
+ * We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users
+ * that think a non-zero value indicates we cannot preempt.
+ */
+static __always_inline int preempt_count(void)
+{
+ return raw_cpu_read_4(pcpu_hot.preempt_count) & ~PREEMPT_NEED_RESCHED;
+}
+
+static __always_inline void preempt_count_set(int pc)
+{
+ int old, new;
+
+ do {
+ old = raw_cpu_read_4(pcpu_hot.preempt_count);
+ new = (old & PREEMPT_NEED_RESCHED) |
+ (pc & ~PREEMPT_NEED_RESCHED);
+ } while (raw_cpu_cmpxchg_4(pcpu_hot.preempt_count, old, new) != old);
+}
+
+/*
+ * must be macros to avoid header recursion hell
+ */
+#define init_task_preempt_count(p) do { } while (0)
+
+#define init_idle_preempt_count(p, cpu) do { \
+ per_cpu(pcpu_hot.preempt_count, (cpu)) = PREEMPT_DISABLED; \
+} while (0)
+
+/*
+ * We fold the NEED_RESCHED bit into the preempt count such that
+ * preempt_enable() can decrement and test for needing to reschedule with a
+ * single instruction.
+ *
+ * We invert the actual bit, so that when the decrement hits 0 we know we both
+ * need to resched (the bit is cleared) and can resched (no preempt count).
+ */
+
+static __always_inline void set_preempt_need_resched(void)
+{
+ raw_cpu_and_4(pcpu_hot.preempt_count, ~PREEMPT_NEED_RESCHED);
+}
+
+static __always_inline void clear_preempt_need_resched(void)
+{
+ raw_cpu_or_4(pcpu_hot.preempt_count, PREEMPT_NEED_RESCHED);
+}
+
+static __always_inline bool test_preempt_need_resched(void)
+{
+ return !(raw_cpu_read_4(pcpu_hot.preempt_count) & PREEMPT_NEED_RESCHED);
+}
+
+/*
+ * The various preempt_count add/sub methods
+ */
+
+static __always_inline void __preempt_count_add(int val)
+{
+ raw_cpu_add_4(pcpu_hot.preempt_count, val);
+}
+
+static __always_inline void __preempt_count_sub(int val)
+{
+ raw_cpu_add_4(pcpu_hot.preempt_count, -val);
+}
+
+/*
+ * Because we keep PREEMPT_NEED_RESCHED set when we do _not_ need to reschedule
+ * a decrement which hits zero means we have no preempt_count and should
+ * reschedule.
+ */
+static __always_inline bool __preempt_count_dec_and_test(void)
+{
+ return GEN_UNARY_RMWcc("decl", pcpu_hot.preempt_count, e,
+ __percpu_arg([var]));
+}
+
+/*
+ * Returns true when we need to resched and can (barring IRQ state).
+ */
+static __always_inline bool should_resched(int preempt_offset)
+{
+ return unlikely(raw_cpu_read_4(pcpu_hot.preempt_count) == preempt_offset);
+}
+
+#ifdef CONFIG_PREEMPTION
+
+extern asmlinkage void preempt_schedule(void);
+extern asmlinkage void preempt_schedule_thunk(void);
+
+#define preempt_schedule_dynamic_enabled preempt_schedule_thunk
+#define preempt_schedule_dynamic_disabled NULL
+
+extern asmlinkage void preempt_schedule_notrace(void);
+extern asmlinkage void preempt_schedule_notrace_thunk(void);
+
+#define preempt_schedule_notrace_dynamic_enabled preempt_schedule_notrace_thunk
+#define preempt_schedule_notrace_dynamic_disabled NULL
+
+#ifdef CONFIG_PREEMPT_DYNAMIC
+
+DECLARE_STATIC_CALL(preempt_schedule, preempt_schedule_dynamic_enabled);
+
+#define __preempt_schedule() \
+do { \
+ __STATIC_CALL_MOD_ADDRESSABLE(preempt_schedule); \
+ asm volatile ("call " STATIC_CALL_TRAMP_STR(preempt_schedule) : ASM_CALL_CONSTRAINT); \
+} while (0)
+
+DECLARE_STATIC_CALL(preempt_schedule_notrace, preempt_schedule_notrace_dynamic_enabled);
+
+#define __preempt_schedule_notrace() \
+do { \
+ __STATIC_CALL_MOD_ADDRESSABLE(preempt_schedule_notrace); \
+ asm volatile ("call " STATIC_CALL_TRAMP_STR(preempt_schedule_notrace) : ASM_CALL_CONSTRAINT); \
+} while (0)
+
+#else /* PREEMPT_DYNAMIC */
+
+#define __preempt_schedule() \
+ asm volatile ("call preempt_schedule_thunk" : ASM_CALL_CONSTRAINT);
+
+#define __preempt_schedule_notrace() \
+ asm volatile ("call preempt_schedule_notrace_thunk" : ASM_CALL_CONSTRAINT);
+
+#endif /* PREEMPT_DYNAMIC */
+
+#endif /* PREEMPTION */
+
+#endif /* __ASM_PREEMPT_H */
diff --git a/arch/x86/include/asm/probe_roms.h b/arch/x86/include/asm/probe_roms.h
new file mode 100644
index 000000000000..1c7f3815bbd6
--- /dev/null
+++ b/arch/x86/include/asm/probe_roms.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _PROBE_ROMS_H_
+#define _PROBE_ROMS_H_
+struct pci_dev;
+
+extern void __iomem *pci_map_biosrom(struct pci_dev *pdev);
+extern void pci_unmap_biosrom(void __iomem *rom);
+extern size_t pci_biosrom_size(struct pci_dev *pdev);
+#endif
diff --git a/arch/x86/include/asm/processor-cyrix.h b/arch/x86/include/asm/processor-cyrix.h
index 1198f2a0e42c..efe3e46e454b 100644
--- a/arch/x86/include/asm/processor-cyrix.h
+++ b/arch/x86/include/asm/processor-cyrix.h
@@ -1,38 +1,18 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* NSC/Cyrix CPU indexed register access. Must be inlined instead of
* macros to ensure correct access ordering
* Access order is always 0x22 (=offset), 0x23 (=value)
- *
- * When using the old macros a line like
- * setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88);
- * gets expanded to:
- * do {
- * outb((CX86_CCR2), 0x22);
- * outb((({
- * outb((CX86_CCR2), 0x22);
- * inb(0x23);
- * }) | 0x88), 0x23);
- * } while (0);
- *
- * which in fact violates the access order (= 0x22, 0x22, 0x23, 0x23).
*/
+#include <asm/pc-conf-reg.h>
+
static inline u8 getCx86(u8 reg)
{
- outb(reg, 0x22);
- return inb(0x23);
+ return pc_conf_get(reg);
}
static inline void setCx86(u8 reg, u8 data)
{
- outb(reg, 0x22);
- outb(data, 0x23);
+ pc_conf_set(reg, data);
}
-
-#define getCx86_old(reg) ({ outb((reg), 0x22); inb(0x23); })
-
-#define setCx86_old(reg, data) do { \
- outb((reg), 0x22); \
- outb((data), 0x23); \
-} while (0)
-
diff --git a/arch/x86/include/asm/processor-flags.h b/arch/x86/include/asm/processor-flags.h
index a898a2b6e10c..d8cccadc83a6 100644
--- a/arch/x86/include/asm/processor-flags.h
+++ b/arch/x86/include/asm/processor-flags.h
@@ -1,100 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PROCESSOR_FLAGS_H
#define _ASM_X86_PROCESSOR_FLAGS_H
-/* Various flags defined: can be included from assembler. */
-/*
- * EFLAGS bits
- */
-#define X86_EFLAGS_CF 0x00000001 /* Carry Flag */
-#define X86_EFLAGS_PF 0x00000004 /* Parity Flag */
-#define X86_EFLAGS_AF 0x00000010 /* Auxiliary carry Flag */
-#define X86_EFLAGS_ZF 0x00000040 /* Zero Flag */
-#define X86_EFLAGS_SF 0x00000080 /* Sign Flag */
-#define X86_EFLAGS_TF 0x00000100 /* Trap Flag */
-#define X86_EFLAGS_IF 0x00000200 /* Interrupt Flag */
-#define X86_EFLAGS_DF 0x00000400 /* Direction Flag */
-#define X86_EFLAGS_OF 0x00000800 /* Overflow Flag */
-#define X86_EFLAGS_IOPL 0x00003000 /* IOPL mask */
-#define X86_EFLAGS_NT 0x00004000 /* Nested Task */
-#define X86_EFLAGS_RF 0x00010000 /* Resume Flag */
-#define X86_EFLAGS_VM 0x00020000 /* Virtual Mode */
-#define X86_EFLAGS_AC 0x00040000 /* Alignment Check */
-#define X86_EFLAGS_VIF 0x00080000 /* Virtual Interrupt Flag */
-#define X86_EFLAGS_VIP 0x00100000 /* Virtual Interrupt Pending */
-#define X86_EFLAGS_ID 0x00200000 /* CPUID detection flag */
+#include <uapi/asm/processor-flags.h>
+#include <linux/mem_encrypt.h>
-/*
- * Basic CPU control in CR0
- */
-#define X86_CR0_PE 0x00000001 /* Protection Enable */
-#define X86_CR0_MP 0x00000002 /* Monitor Coprocessor */
-#define X86_CR0_EM 0x00000004 /* Emulation */
-#define X86_CR0_TS 0x00000008 /* Task Switched */
-#define X86_CR0_ET 0x00000010 /* Extension Type */
-#define X86_CR0_NE 0x00000020 /* Numeric Error */
-#define X86_CR0_WP 0x00010000 /* Write Protect */
-#define X86_CR0_AM 0x00040000 /* Alignment Mask */
-#define X86_CR0_NW 0x20000000 /* Not Write-through */
-#define X86_CR0_CD 0x40000000 /* Cache Disable */
-#define X86_CR0_PG 0x80000000 /* Paging */
-
-/*
- * Paging options in CR3
- */
-#define X86_CR3_PWT 0x00000008 /* Page Write Through */
-#define X86_CR3_PCD 0x00000010 /* Page Cache Disable */
-
-/*
- * Intel CPU features in CR4
- */
-#define X86_CR4_VME 0x00000001 /* enable vm86 extensions */
-#define X86_CR4_PVI 0x00000002 /* virtual interrupts flag enable */
-#define X86_CR4_TSD 0x00000004 /* disable time stamp at ipl 3 */
-#define X86_CR4_DE 0x00000008 /* enable debugging extensions */
-#define X86_CR4_PSE 0x00000010 /* enable page size extensions */
-#define X86_CR4_PAE 0x00000020 /* enable physical address extensions */
-#define X86_CR4_MCE 0x00000040 /* Machine check enable */
-#define X86_CR4_PGE 0x00000080 /* enable global pages */
-#define X86_CR4_PCE 0x00000100 /* enable performance counters at ipl 3 */
-#define X86_CR4_OSFXSR 0x00000200 /* enable fast FPU save and restore */
-#define X86_CR4_OSXMMEXCPT 0x00000400 /* enable unmasked SSE exceptions */
-#define X86_CR4_VMXE 0x00002000 /* enable VMX virtualization */
-#define X86_CR4_OSXSAVE 0x00040000 /* enable xsave and xrestore */
-
-/*
- * x86-64 Task Priority Register, CR8
- */
-#define X86_CR8_TPR 0x0000000F /* task priority register */
+#ifdef CONFIG_VM86
+#define X86_VM_MASK X86_EFLAGS_VM
+#else
+#define X86_VM_MASK 0 /* No VM86 support */
+#endif
/*
- * AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h>
+ * CR3's layout varies depending on several things.
+ *
+ * If CR4.PCIDE is set (64-bit only), then CR3[11:0] is the address space ID.
+ * If PAE is enabled, then CR3[11:5] is part of the PDPT address
+ * (i.e. it's 32-byte aligned, not page-aligned) and CR3[4:0] is ignored.
+ * Otherwise (non-PAE, non-PCID), CR3[3] is PWT, CR3[4] is PCD, and
+ * CR3[2:0] and CR3[11:5] are ignored.
+ *
+ * In all cases, Linux puts zeros in the low ignored bits and in PWT and PCD.
+ *
+ * CR3[63] is always read as zero. If CR4.PCIDE is set, then CR3[63] may be
+ * written as 1 to prevent the write to CR3 from flushing the TLB.
+ *
+ * On systems with SME, one bit (in a variable position!) is stolen to indicate
+ * that the top-level paging structure is encrypted.
+ *
+ * On systemms with LAM, bits 61 and 62 are used to indicate LAM mode.
+ *
+ * All of the remaining bits indicate the physical address of the top-level
+ * paging structure.
+ *
+ * CR3_ADDR_MASK is the mask used by read_cr3_pa().
*/
+#ifdef CONFIG_X86_64
+/* Mask off the address space ID and SME encryption bits. */
+#define CR3_ADDR_MASK __sme_clr(PHYSICAL_PAGE_MASK)
+#define CR3_PCID_MASK 0xFFFull
+#define CR3_NOFLUSH BIT_ULL(63)
+#else
/*
- * NSC/Cyrix CPU configuration register indexes
+ * CR3_ADDR_MASK needs at least bits 31:5 set on PAE systems, and we save
+ * a tiny bit of code size by setting all the bits.
*/
-#define CX86_PCR0 0x20
-#define CX86_GCR 0xb8
-#define CX86_CCR0 0xc0
-#define CX86_CCR1 0xc1
-#define CX86_CCR2 0xc2
-#define CX86_CCR3 0xc3
-#define CX86_CCR4 0xe8
-#define CX86_CCR5 0xe9
-#define CX86_CCR6 0xea
-#define CX86_CCR7 0xeb
-#define CX86_PCR1 0xf0
-#define CX86_DIR0 0xfe
-#define CX86_DIR1 0xff
-#define CX86_ARR_BASE 0xc4
-#define CX86_RCR_BASE 0xdc
-
-#ifdef __KERNEL__
-#ifdef CONFIG_VM86
-#define X86_VM_MASK X86_EFLAGS_VM
-#else
-#define X86_VM_MASK 0 /* No VM86 support */
+#define CR3_ADDR_MASK 0xFFFFFFFFull
+#define CR3_PCID_MASK 0ull
+#define CR3_NOFLUSH 0
#endif
+
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+# define X86_CR3_PTI_PCID_USER_BIT 11
#endif
#endif /* _ASM_X86_PROCESSOR_FLAGS_H */
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 4c25ab48257b..a1e4fa58b357 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PROCESSOR_H
#define _ASM_X86_PROCESSOR_H
@@ -6,55 +7,75 @@
/* Forward declaration, a strange C thing */
struct task_struct;
struct mm_struct;
+struct io_bitmap;
+struct vm86;
-#include <asm/vm86.h>
#include <asm/math_emu.h>
#include <asm/segment.h>
#include <asm/types.h>
-#include <asm/sigcontext.h>
+#include <uapi/asm/sigcontext.h>
#include <asm/current.h>
-#include <asm/cpufeature.h>
-#include <asm/system.h>
+#include <asm/cpufeatures.h>
+#include <asm/cpuid.h>
#include <asm/page.h>
#include <asm/pgtable_types.h>
#include <asm/percpu.h>
#include <asm/msr.h>
#include <asm/desc_defs.h>
#include <asm/nops.h>
+#include <asm/special_insns.h>
+#include <asm/fpu/types.h>
+#include <asm/unwind_hints.h>
+#include <asm/vmxfeatures.h>
+#include <asm/vdso/processor.h>
#include <linux/personality.h>
-#include <linux/cpumask.h>
#include <linux/cache.h>
#include <linux/threads.h>
#include <linux/math64.h>
-#include <linux/init.h>
#include <linux/err.h>
+#include <linux/irqflags.h>
+#include <linux/mem_encrypt.h>
-#define HBP_NUM 4
/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
+ * We handle most unaligned accesses in hardware. On the other hand
+ * unaligned DMA can be quite expensive on some Nehalem processors.
+ *
+ * Based on this we disable the IP header alignment in network drivers.
*/
-static inline void *current_text_addr(void)
-{
- void *pc;
-
- asm volatile("mov $1f, %0; 1:":"=r" (pc));
+#define NET_IP_ALIGN 0
- return pc;
-}
+#define HBP_NUM 4
+/*
+ * These alignment constraints are for performance in the vSMP case,
+ * but in the task_struct case we must also meet hardware imposed
+ * alignment requirements of the FPU state:
+ */
#ifdef CONFIG_X86_VSMP
# define ARCH_MIN_TASKALIGN (1 << INTERNODE_CACHE_SHIFT)
# define ARCH_MIN_MMSTRUCT_ALIGN (1 << INTERNODE_CACHE_SHIFT)
#else
-# define ARCH_MIN_TASKALIGN 16
+# define ARCH_MIN_TASKALIGN __alignof__(union fpregs_state)
# define ARCH_MIN_MMSTRUCT_ALIGN 0
#endif
+enum tlb_infos {
+ ENTRIES,
+ NR_INFO
+};
+
+extern u16 __read_mostly tlb_lli_4k[NR_INFO];
+extern u16 __read_mostly tlb_lli_2m[NR_INFO];
+extern u16 __read_mostly tlb_lli_4m[NR_INFO];
+extern u16 __read_mostly tlb_lld_4k[NR_INFO];
+extern u16 __read_mostly tlb_lld_2m[NR_INFO];
+extern u16 __read_mostly tlb_lld_4m[NR_INFO];
+extern u16 __read_mostly tlb_lld_1g[NR_INFO];
+
/*
* CPU type and hardware bug flags. Kept separately for each CPU.
- * Members of this structure are referenced in head.S, so think twice
+ * Members of this structure are referenced in head_32.S, so think twice
* before touching them. [mj]
*/
@@ -62,56 +83,69 @@ struct cpuinfo_x86 {
__u8 x86; /* CPU family */
__u8 x86_vendor; /* CPU vendor */
__u8 x86_model;
- __u8 x86_mask;
-#ifdef CONFIG_X86_32
- char wp_works_ok; /* It doesn't on 386's */
-
- /* Problems on some 486Dx4's and old 386's: */
- char hlt_works_ok;
- char hard_math;
- char rfu;
- char fdiv_bug;
- char f00f_bug;
- char coma_bug;
- char pad0;
-#else
+ __u8 x86_stepping;
+#ifdef CONFIG_X86_64
/* Number of 4K pages in DTLB/ITLB combined(in pages): */
int x86_tlbsize;
#endif
+#ifdef CONFIG_X86_VMX_FEATURE_NAMES
+ __u32 vmx_capability[NVMXINTS];
+#endif
__u8 x86_virt_bits;
__u8 x86_phys_bits;
/* CPUID returned core id bits: */
__u8 x86_coreid_bits;
+ __u8 cu_id;
/* Max extended CPUID function supported: */
__u32 extended_cpuid_level;
/* Maximum supported CPUID level, -1=no CPUID: */
int cpuid_level;
- __u32 x86_capability[NCAPINTS];
+ /*
+ * Align to size of unsigned long because the x86_capability array
+ * is passed to bitops which require the alignment. Use unnamed
+ * union to enforce the array is aligned to size of unsigned long.
+ */
+ union {
+ __u32 x86_capability[NCAPINTS + NBUGINTS];
+ unsigned long x86_capability_alignment;
+ };
char x86_vendor_id[16];
char x86_model_id[64];
/* in KB - valid for CPUS which support this call: */
- int x86_cache_size;
+ unsigned int x86_cache_size;
int x86_cache_alignment; /* In bytes */
+ /* Cache QoS architectural values, valid only on the BSP: */
+ int x86_cache_max_rmid; /* max index */
+ int x86_cache_occ_scale; /* scale to bytes */
+ int x86_cache_mbm_width_offset;
int x86_power;
unsigned long loops_per_jiffy;
+ /* protected processor identification number */
+ u64 ppin;
/* cpuid returned max cores value: */
- u16 x86_max_cores;
+ u16 x86_max_cores;
u16 apicid;
u16 initial_apicid;
u16 x86_clflush_size;
-#ifdef CONFIG_SMP
/* number of cores as seen by the OS: */
u16 booted_cores;
/* Physical processor id: */
u16 phys_proc_id;
+ /* Logical processor id: */
+ u16 logical_proc_id;
/* Core id: */
u16 cpu_core_id;
- /* Compute unit id */
- u8 compute_unit_id;
+ u16 cpu_die_id;
+ u16 logical_die_id;
/* Index into per_cpu list: */
u16 cpu_index;
-#endif
-} __attribute__((__aligned__(SMP_CACHE_BYTES)));
+ /* Is SMT active on this core? */
+ bool smt_active;
+ u32 microcode;
+ /* Address space bits used by the cache internally */
+ u8 x86_cache_bits;
+ unsigned initialized : 1;
+} __randomize_layout;
#define X86_VENDOR_INTEL 0
#define X86_VENDOR_CYRIX 1
@@ -120,7 +154,10 @@ struct cpuinfo_x86 {
#define X86_VENDOR_CENTAUR 5
#define X86_VENDOR_TRANSMETA 7
#define X86_VENDOR_NSC 8
-#define X86_VENDOR_NUM 9
+#define X86_VENDOR_HYGON 9
+#define X86_VENDOR_ZHAOXIN 10
+#define X86_VENDOR_VORTEX 11
+#define X86_VENDOR_NUM 12
#define X86_VENDOR_UNKNOWN 0xff
@@ -130,12 +167,11 @@ struct cpuinfo_x86 {
extern struct cpuinfo_x86 boot_cpu_data;
extern struct cpuinfo_x86 new_cpu_data;
-extern struct tss_struct doublefault_tss;
-extern __u32 cpu_caps_cleared[NCAPINTS];
-extern __u32 cpu_caps_set[NCAPINTS];
+extern __u32 cpu_caps_cleared[NCAPINTS + NBUGINTS];
+extern __u32 cpu_caps_set[NCAPINTS + NBUGINTS];
#ifdef CONFIG_SMP
-DECLARE_PER_CPU_SHARED_ALIGNED(struct cpuinfo_x86, cpu_info);
+DECLARE_PER_CPU_READ_MOSTLY(struct cpuinfo_x86, cpu_info);
#define cpu_data(cpu) per_cpu(cpu_info, cpu)
#else
#define cpu_info boot_cpu_data
@@ -144,49 +180,44 @@ DECLARE_PER_CPU_SHARED_ALIGNED(struct cpuinfo_x86, cpu_info);
extern const struct seq_operations cpuinfo_op;
-static inline int hlt_works(int cpu)
-{
-#ifdef CONFIG_X86_32
- return cpu_data(cpu).hlt_works_ok;
-#else
- return 1;
-#endif
-}
-
#define cache_line_size() (boot_cpu_data.x86_cache_alignment)
extern void cpu_detect(struct cpuinfo_x86 *c);
-extern struct pt_regs *idle_regs(struct pt_regs *);
+static inline unsigned long long l1tf_pfn_limit(void)
+{
+ return BIT_ULL(boot_cpu_data.x86_cache_bits - 1 - PAGE_SHIFT);
+}
extern void early_cpu_init(void);
extern void identify_boot_cpu(void);
extern void identify_secondary_cpu(struct cpuinfo_x86 *);
extern void print_cpu_info(struct cpuinfo_x86 *);
-extern void init_scattered_cpuid_features(struct cpuinfo_x86 *c);
-extern unsigned int init_intel_cacheinfo(struct cpuinfo_x86 *c);
-extern unsigned short num_cache_leaves;
+void print_cpu_msr(struct cpuinfo_x86 *);
-extern void detect_extended_topology(struct cpuinfo_x86 *c);
-extern void detect_ht(struct cpuinfo_x86 *c);
+/*
+ * Friendlier CR3 helpers.
+ */
+static inline unsigned long read_cr3_pa(void)
+{
+ return __read_cr3() & CR3_ADDR_MASK;
+}
-static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
- unsigned int *ecx, unsigned int *edx)
+static inline unsigned long native_read_cr3_pa(void)
{
- /* ecx is often an input as well as an output. */
- asm volatile("cpuid"
- : "=a" (*eax),
- "=b" (*ebx),
- "=c" (*ecx),
- "=d" (*edx)
- : "0" (*eax), "2" (*ecx));
+ return __native_read_cr3() & CR3_ADDR_MASK;
}
static inline void load_cr3(pgd_t *pgdir)
{
- write_cr3(__pa(pgdir));
+ write_cr3(__sme_pa(pgdir));
}
+/*
+ * Note that while the legacy 'TSS' name comes from 'Task State Segment',
+ * on modern x86 CPUs the TSS also holds information important to 64-bit mode,
+ * unrelated to the task-switch mechanism:
+ */
#ifdef CONFIG_X86_32
/* This is the TSS defined by the hardware. */
struct x86_hw_tss {
@@ -194,8 +225,23 @@ struct x86_hw_tss {
unsigned long sp0;
unsigned short ss0, __ss0h;
unsigned long sp1;
- /* ss1 caches MSR_IA32_SYSENTER_CS: */
- unsigned short ss1, __ss1h;
+
+ /*
+ * We don't use ring 1, so ss1 is a convenient scratch space in
+ * the same cacheline as sp0. We use ss1 to cache the value in
+ * MSR_IA32_SYSENTER_CS. When we context switch
+ * MSR_IA32_SYSENTER_CS, we first check if the new value being
+ * written matches ss1, and, if it's not, then we wrmsr the new
+ * value and update ss1.
+ *
+ * The only reason we context switch MSR_IA32_SYSENTER_CS is
+ * that we set it to zero in vm86 tasks to avoid corrupting the
+ * stack if we were to go through the sysenter path from vm86
+ * mode.
+ */
+ unsigned short ss1; /* MSR_IA32_SYSENTER_CS */
+
+ unsigned short __ss1h;
unsigned long sp2;
unsigned short ss2, __ss2h;
unsigned long __cr3;
@@ -225,7 +271,14 @@ struct x86_hw_tss {
u32 reserved1;
u64 sp0;
u64 sp1;
+
+ /*
+ * Since Linux does not use ring 2, the 'sp2' slot is unused by
+ * hardware. entry_SYSCALL_64 uses it as scratch space to stash
+ * the user RSP value.
+ */
u64 sp2;
+
u64 reserved2;
u64 ist[7];
u32 reserved3;
@@ -233,547 +286,274 @@ struct x86_hw_tss {
u16 reserved5;
u16 io_bitmap_base;
-} __attribute__((packed)) ____cacheline_aligned;
+} __attribute__((packed));
#endif
/*
* IO-bitmap sizes:
*/
#define IO_BITMAP_BITS 65536
-#define IO_BITMAP_BYTES (IO_BITMAP_BITS/8)
-#define IO_BITMAP_LONGS (IO_BITMAP_BYTES/sizeof(long))
-#define IO_BITMAP_OFFSET offsetof(struct tss_struct, io_bitmap)
-#define INVALID_IO_BITMAP_OFFSET 0x8000
-
-struct tss_struct {
- /*
- * The hardware state:
- */
- struct x86_hw_tss x86_tss;
-
- /*
- * The extra 1 is there because the CPU will access an
- * additional byte beyond the end of the IO permission
- * bitmap. The extra byte must be all 1 bits, and must
- * be within the limit.
- */
- unsigned long io_bitmap[IO_BITMAP_LONGS + 1];
+#define IO_BITMAP_BYTES (IO_BITMAP_BITS / BITS_PER_BYTE)
+#define IO_BITMAP_LONGS (IO_BITMAP_BYTES / sizeof(long))
- /*
- * .. and then another 0x100 bytes for the emergency kernel stack:
- */
- unsigned long stack[64];
+#define IO_BITMAP_OFFSET_VALID_MAP \
+ (offsetof(struct tss_struct, io_bitmap.bitmap) - \
+ offsetof(struct tss_struct, x86_tss))
-} ____cacheline_aligned;
-
-DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss);
+#define IO_BITMAP_OFFSET_VALID_ALL \
+ (offsetof(struct tss_struct, io_bitmap.mapall) - \
+ offsetof(struct tss_struct, x86_tss))
+#ifdef CONFIG_X86_IOPL_IOPERM
/*
- * Save the original ist values for checking stack pointers during debugging
+ * sizeof(unsigned long) coming from an extra "long" at the end of the
+ * iobitmap. The limit is inclusive, i.e. the last valid byte.
*/
-struct orig_ist {
- unsigned long ist[7];
-};
-
-#define MXCSR_DEFAULT 0x1f80
-
-struct i387_fsave_struct {
- u32 cwd; /* FPU Control Word */
- u32 swd; /* FPU Status Word */
- u32 twd; /* FPU Tag Word */
- u32 fip; /* FPU IP Offset */
- u32 fcs; /* FPU IP Selector */
- u32 foo; /* FPU Operand Pointer Offset */
- u32 fos; /* FPU Operand Pointer Selector */
+# define __KERNEL_TSS_LIMIT \
+ (IO_BITMAP_OFFSET_VALID_ALL + IO_BITMAP_BYTES + \
+ sizeof(unsigned long) - 1)
+#else
+# define __KERNEL_TSS_LIMIT \
+ (offsetof(struct tss_struct, x86_tss) + sizeof(struct x86_hw_tss) - 1)
+#endif
- /* 8*10 bytes for each FP-reg = 80 bytes: */
- u32 st_space[20];
+/* Base offset outside of TSS_LIMIT so unpriviledged IO causes #GP */
+#define IO_BITMAP_OFFSET_INVALID (__KERNEL_TSS_LIMIT + 1)
- /* Software status information [not touched by FSAVE ]: */
- u32 status;
+struct entry_stack {
+ char stack[PAGE_SIZE];
};
-struct i387_fxsave_struct {
- u16 cwd; /* Control Word */
- u16 swd; /* Status Word */
- u16 twd; /* Tag Word */
- u16 fop; /* Last Instruction Opcode */
- union {
- struct {
- u64 rip; /* Instruction Pointer */
- u64 rdp; /* Data Pointer */
- };
- struct {
- u32 fip; /* FPU IP Offset */
- u32 fcs; /* FPU IP Selector */
- u32 foo; /* FPU Operand Offset */
- u32 fos; /* FPU Operand Selector */
- };
- };
- u32 mxcsr; /* MXCSR Register State */
- u32 mxcsr_mask; /* MXCSR Mask */
+struct entry_stack_page {
+ struct entry_stack stack;
+} __aligned(PAGE_SIZE);
- /* 8*16 bytes for each FP-reg = 128 bytes: */
- u32 st_space[32];
-
- /* 16*16 bytes for each XMM-reg = 256 bytes: */
- u32 xmm_space[64];
+/*
+ * All IO bitmap related data stored in the TSS:
+ */
+struct x86_io_bitmap {
+ /* The sequence number of the last active bitmap. */
+ u64 prev_sequence;
- u32 padding[12];
+ /*
+ * Store the dirty size of the last io bitmap offender. The next
+ * one will have to do the cleanup as the switch out to a non io
+ * bitmap user will just set x86_tss.io_bitmap_base to a value
+ * outside of the TSS limit. So for sane tasks there is no need to
+ * actually touch the io_bitmap at all.
+ */
+ unsigned int prev_max;
- union {
- u32 padding1[12];
- u32 sw_reserved[12];
- };
+ /*
+ * The extra 1 is there because the CPU will access an
+ * additional byte beyond the end of the IO permission
+ * bitmap. The extra byte must be all 1 bits, and must
+ * be within the limit.
+ */
+ unsigned long bitmap[IO_BITMAP_LONGS + 1];
-} __attribute__((aligned(16)));
-
-struct i387_soft_struct {
- u32 cwd;
- u32 swd;
- u32 twd;
- u32 fip;
- u32 fcs;
- u32 foo;
- u32 fos;
- /* 8*10 bytes for each FP-reg = 80 bytes: */
- u32 st_space[20];
- u8 ftop;
- u8 changed;
- u8 lookahead;
- u8 no_update;
- u8 rm;
- u8 alimit;
- struct math_emu_info *info;
- u32 entry_eip;
+ /*
+ * Special I/O bitmap to emulate IOPL(3). All bytes zero,
+ * except the additional byte at the end.
+ */
+ unsigned long mapall[IO_BITMAP_LONGS + 1];
};
-struct ymmh_struct {
- /* 16 * 16 bytes for each YMMH-reg = 256 bytes */
- u32 ymmh_space[64];
-};
+struct tss_struct {
+ /*
+ * The fixed hardware portion. This must not cross a page boundary
+ * at risk of violating the SDM's advice and potentially triggering
+ * errata.
+ */
+ struct x86_hw_tss x86_tss;
-struct xsave_hdr_struct {
- u64 xstate_bv;
- u64 reserved1[2];
- u64 reserved2[5];
-} __attribute__((packed));
+ struct x86_io_bitmap io_bitmap;
+} __aligned(PAGE_SIZE);
-struct xsave_struct {
- struct i387_fxsave_struct i387;
- struct xsave_hdr_struct xsave_hdr;
- struct ymmh_struct ymmh;
- /* new processor state extensions will go here */
-} __attribute__ ((packed, aligned (64)));
-
-union thread_xstate {
- struct i387_fsave_struct fsave;
- struct i387_fxsave_struct fxsave;
- struct i387_soft_struct soft;
- struct xsave_struct xsave;
-};
+DECLARE_PER_CPU_PAGE_ALIGNED(struct tss_struct, cpu_tss_rw);
-struct fpu {
- union thread_xstate *state;
-};
+/* Per CPU interrupt stacks */
+struct irq_stack {
+ char stack[IRQ_STACK_SIZE];
+} __aligned(IRQ_STACK_SIZE);
#ifdef CONFIG_X86_64
-DECLARE_PER_CPU(struct orig_ist, orig_ist);
-
-union irq_stack_union {
- char irq_stack[IRQ_STACK_SIZE];
+struct fixed_percpu_data {
/*
* GCC hardcodes the stack canary as %gs:40. Since the
* irq_stack is the object at %gs:0, we reserve the bottom
* 48 bytes of the irq stack for the canary.
+ *
+ * Once we are willing to require -mstack-protector-guard-symbol=
+ * support for x86_64 stackprotector, we can get rid of this.
*/
- struct {
- char gs_base[40];
- unsigned long stack_canary;
- };
+ char gs_base[40];
+ unsigned long stack_canary;
};
-DECLARE_PER_CPU_FIRST(union irq_stack_union, irq_stack_union);
-DECLARE_INIT_PER_CPU(irq_stack_union);
+DECLARE_PER_CPU_FIRST(struct fixed_percpu_data, fixed_percpu_data) __visible;
+DECLARE_INIT_PER_CPU(fixed_percpu_data);
+
+static inline unsigned long cpu_kernelmode_gs_base(int cpu)
+{
+ return (unsigned long)per_cpu(fixed_percpu_data.gs_base, cpu);
+}
-DECLARE_PER_CPU(char *, irq_stack_ptr);
-DECLARE_PER_CPU(unsigned int, irq_count);
-extern unsigned long kernel_eflags;
extern asmlinkage void ignore_sysret(void);
+
+/* Save actual FS/GS selectors and bases to current->thread */
+void current_save_fsgs(void);
#else /* X86_64 */
-#ifdef CONFIG_CC_STACKPROTECTOR
-/*
- * Make sure stack canary segment base is cached-aligned:
- * "For Intel Atom processors, avoid non zero segment base address
- * that is not aligned to cache line boundary at all cost."
- * (Optim Ref Manual Assembly/Compiler Coding Rule 15.)
- */
-struct stack_canary {
- char __pad[20]; /* canary at %gs:20 */
- unsigned long canary;
-};
-DECLARE_PER_CPU_ALIGNED(struct stack_canary, stack_canary);
+#ifdef CONFIG_STACKPROTECTOR
+DECLARE_PER_CPU(unsigned long, __stack_chk_guard);
#endif
-#endif /* X86_64 */
-
-extern unsigned int xstate_size;
-extern void free_thread_xstate(struct task_struct *);
-extern struct kmem_cache *task_xstate_cachep;
+#endif /* !X86_64 */
struct perf_event;
struct thread_struct {
/* Cached TLS descriptors: */
struct desc_struct tls_array[GDT_ENTRY_TLS_ENTRIES];
+#ifdef CONFIG_X86_32
unsigned long sp0;
+#endif
unsigned long sp;
#ifdef CONFIG_X86_32
unsigned long sysenter_cs;
#else
- unsigned long usersp; /* Copy from PDA */
unsigned short es;
unsigned short ds;
unsigned short fsindex;
unsigned short gsindex;
#endif
-#ifdef CONFIG_X86_32
- unsigned long ip;
-#endif
+
#ifdef CONFIG_X86_64
- unsigned long fs;
+ unsigned long fsbase;
+ unsigned long gsbase;
+#else
+ /*
+ * XXX: this could presumably be unsigned short. Alternatively,
+ * 32-bit kernels could be taught to use fsindex instead.
+ */
+ unsigned long fs;
+ unsigned long gs;
#endif
- unsigned long gs;
+
/* Save middle states of ptrace breakpoints */
struct perf_event *ptrace_bps[HBP_NUM];
/* Debug status used for traps, single steps, etc... */
- unsigned long debugreg6;
+ unsigned long virtual_dr6;
/* Keep track of the exact dr7 value set by the user */
unsigned long ptrace_dr7;
/* Fault info: */
unsigned long cr2;
- unsigned long trap_no;
+ unsigned long trap_nr;
unsigned long error_code;
- /* floating point and extended processor state */
- struct fpu fpu;
-#ifdef CONFIG_X86_32
+#ifdef CONFIG_VM86
/* Virtual 86 mode info */
- struct vm86_struct __user *vm86_info;
- unsigned long screen_bitmap;
- unsigned long v86flags;
- unsigned long v86mask;
- unsigned long saved_sp0;
- unsigned int saved_fs;
- unsigned int saved_gs;
+ struct vm86 *vm86;
#endif
/* IO permissions: */
- unsigned long *io_bitmap_ptr;
- unsigned long iopl;
- /* Max allowed port in the bitmap, in bytes: */
- unsigned io_bitmap_max;
-};
+ struct io_bitmap *io_bitmap;
-static inline unsigned long native_get_debugreg(int regno)
-{
- unsigned long val = 0; /* Damn you, gcc! */
-
- switch (regno) {
- case 0:
- asm("mov %%db0, %0" :"=r" (val));
- break;
- case 1:
- asm("mov %%db1, %0" :"=r" (val));
- break;
- case 2:
- asm("mov %%db2, %0" :"=r" (val));
- break;
- case 3:
- asm("mov %%db3, %0" :"=r" (val));
- break;
- case 6:
- asm("mov %%db6, %0" :"=r" (val));
- break;
- case 7:
- asm("mov %%db7, %0" :"=r" (val));
- break;
- default:
- BUG();
- }
- return val;
-}
+ /*
+ * IOPL. Privilege level dependent I/O permission which is
+ * emulated via the I/O bitmap to prevent user space from disabling
+ * interrupts.
+ */
+ unsigned long iopl_emul;
-static inline void native_set_debugreg(int regno, unsigned long value)
-{
- switch (regno) {
- case 0:
- asm("mov %0, %%db0" ::"r" (value));
- break;
- case 1:
- asm("mov %0, %%db1" ::"r" (value));
- break;
- case 2:
- asm("mov %0, %%db2" ::"r" (value));
- break;
- case 3:
- asm("mov %0, %%db3" ::"r" (value));
- break;
- case 6:
- asm("mov %0, %%db6" ::"r" (value));
- break;
- case 7:
- asm("mov %0, %%db7" ::"r" (value));
- break;
- default:
- BUG();
- }
-}
+ unsigned int iopl_warn:1;
+ unsigned int sig_on_uaccess_err:1;
-/*
- * Set IOPL bits in EFLAGS from given mask
- */
-static inline void native_set_iopl_mask(unsigned mask)
+ /*
+ * Protection Keys Register for Userspace. Loaded immediately on
+ * context switch. Store it in thread_struct to avoid a lookup in
+ * the tasks's FPU xstate buffer. This value is only valid when a
+ * task is scheduled out. For 'current' the authoritative source of
+ * PKRU is the hardware itself.
+ */
+ u32 pkru;
+
+ /* Floating point and extended processor state */
+ struct fpu fpu;
+ /*
+ * WARNING: 'fpu' is dynamically-sized. It *MUST* be at
+ * the end.
+ */
+};
+
+extern void fpu_thread_struct_whitelist(unsigned long *offset, unsigned long *size);
+
+static inline void arch_thread_struct_whitelist(unsigned long *offset,
+ unsigned long *size)
{
-#ifdef CONFIG_X86_32
- unsigned int reg;
-
- asm volatile ("pushfl;"
- "popl %0;"
- "andl %1, %0;"
- "orl %2, %0;"
- "pushl %0;"
- "popfl"
- : "=&r" (reg)
- : "i" (~X86_EFLAGS_IOPL), "r" (mask));
-#endif
+ fpu_thread_struct_whitelist(offset, size);
}
static inline void
-native_load_sp0(struct tss_struct *tss, struct thread_struct *thread)
+native_load_sp0(unsigned long sp0)
{
- tss->x86_tss.sp0 = thread->sp0;
-#ifdef CONFIG_X86_32
- /* Only happens when SEP is enabled, no need to test "SEP"arately: */
- if (unlikely(tss->x86_tss.ss1 != thread->sysenter_cs)) {
- tss->x86_tss.ss1 = thread->sysenter_cs;
- wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0);
- }
-#endif
+ this_cpu_write(cpu_tss_rw.x86_tss.sp0, sp0);
}
-static inline void native_swapgs(void)
+static __always_inline void native_swapgs(void)
{
#ifdef CONFIG_X86_64
asm volatile("swapgs" ::: "memory");
#endif
}
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else
-#define __cpuid native_cpuid
-#define paravirt_enabled() 0
-
-/*
- * These special macros can be used to get or set a debugging register
- */
-#define get_debugreg(var, register) \
- (var) = native_get_debugreg(register)
-#define set_debugreg(value, register) \
- native_set_debugreg(register, value)
-
-static inline void load_sp0(struct tss_struct *tss,
- struct thread_struct *thread)
-{
- native_load_sp0(tss, thread);
-}
-
-#define set_iopl_mask native_set_iopl_mask
-#endif /* CONFIG_PARAVIRT */
-
-/*
- * Save the cr4 feature set we're using (ie
- * Pentium 4MB enable and PPro Global page
- * enable), so that any CPU's that boot up
- * after us can get the correct flags.
- */
-extern unsigned long mmu_cr4_features;
-
-static inline void set_in_cr4(unsigned long mask)
-{
- unsigned long cr4;
-
- mmu_cr4_features |= mask;
- cr4 = read_cr4();
- cr4 |= mask;
- write_cr4(cr4);
-}
-
-static inline void clear_in_cr4(unsigned long mask)
-{
- unsigned long cr4;
-
- mmu_cr4_features &= ~mask;
- cr4 = read_cr4();
- cr4 &= ~mask;
- write_cr4(cr4);
-}
-
-typedef struct {
- unsigned long seg;
-} mm_segment_t;
-
-
-/*
- * create a kernel thread without removing it from tasklists
- */
-extern int kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);
-
-/* Free all resources held by a thread. */
-extern void release_thread(struct task_struct *);
-
-/* Prepare to copy thread state - unlazy all lazy state */
-extern void prepare_to_copy(struct task_struct *tsk);
-
-unsigned long get_wchan(struct task_struct *p);
-
-/*
- * Generic CPUID function
- * clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx
- * resulting in stale register contents being returned.
- */
-static inline void cpuid(unsigned int op,
- unsigned int *eax, unsigned int *ebx,
- unsigned int *ecx, unsigned int *edx)
-{
- *eax = op;
- *ecx = 0;
- __cpuid(eax, ebx, ecx, edx);
-}
-
-/* Some CPUID calls want 'count' to be placed in ecx */
-static inline void cpuid_count(unsigned int op, int count,
- unsigned int *eax, unsigned int *ebx,
- unsigned int *ecx, unsigned int *edx)
-{
- *eax = op;
- *ecx = count;
- __cpuid(eax, ebx, ecx, edx);
-}
-
-/*
- * CPUID functions returning a single datum
- */
-static inline unsigned int cpuid_eax(unsigned int op)
-{
- unsigned int eax, ebx, ecx, edx;
-
- cpuid(op, &eax, &ebx, &ecx, &edx);
-
- return eax;
-}
-
-static inline unsigned int cpuid_ebx(unsigned int op)
-{
- unsigned int eax, ebx, ecx, edx;
-
- cpuid(op, &eax, &ebx, &ecx, &edx);
-
- return ebx;
-}
-
-static inline unsigned int cpuid_ecx(unsigned int op)
-{
- unsigned int eax, ebx, ecx, edx;
-
- cpuid(op, &eax, &ebx, &ecx, &edx);
-
- return ecx;
-}
-
-static inline unsigned int cpuid_edx(unsigned int op)
+static __always_inline unsigned long current_top_of_stack(void)
{
- unsigned int eax, ebx, ecx, edx;
-
- cpuid(op, &eax, &ebx, &ecx, &edx);
-
- return edx;
-}
-
-/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
-static inline void rep_nop(void)
-{
- asm volatile("rep; nop" ::: "memory");
-}
-
-static inline void cpu_relax(void)
-{
- rep_nop();
+ /*
+ * We can't read directly from tss.sp0: sp0 on x86_32 is special in
+ * and around vm86 mode and sp0 on x86_64 is special because of the
+ * entry trampoline.
+ */
+ return this_cpu_read_stable(pcpu_hot.top_of_stack);
}
-/* Stop speculative execution and prefetching of modified code. */
-static inline void sync_core(void)
+static __always_inline bool on_thread_stack(void)
{
- int tmp;
-
-#if defined(CONFIG_M386) || defined(CONFIG_M486)
- if (boot_cpu_data.x86 < 5)
- /* There is no speculative execution.
- * jmp is a barrier to prefetching. */
- asm volatile("jmp 1f\n1:\n" ::: "memory");
- else
-#endif
- /* cpuid is a barrier to speculative execution.
- * Prefetched instructions are automatically
- * invalidated when modified. */
- asm volatile("cpuid" : "=a" (tmp) : "0" (1)
- : "ebx", "ecx", "edx", "memory");
+ return (unsigned long)(current_top_of_stack() -
+ current_stack_pointer) < THREAD_SIZE;
}
-static inline void __monitor(const void *eax, unsigned long ecx,
- unsigned long edx)
-{
- /* "monitor %eax, %ecx, %edx;" */
- asm volatile(".byte 0x0f, 0x01, 0xc8;"
- :: "a" (eax), "c" (ecx), "d"(edx));
-}
+#ifdef CONFIG_PARAVIRT_XXL
+#include <asm/paravirt.h>
+#else
-static inline void __mwait(unsigned long eax, unsigned long ecx)
+static inline void load_sp0(unsigned long sp0)
{
- /* "mwait %eax, %ecx;" */
- asm volatile(".byte 0x0f, 0x01, 0xc9;"
- :: "a" (eax), "c" (ecx));
+ native_load_sp0(sp0);
}
-static inline void __sti_mwait(unsigned long eax, unsigned long ecx)
-{
- trace_hardirqs_on();
- /* "mwait %eax, %ecx;" */
- asm volatile("sti; .byte 0x0f, 0x01, 0xc9;"
- :: "a" (eax), "c" (ecx));
-}
+#endif /* CONFIG_PARAVIRT_XXL */
-extern void mwait_idle_with_hints(unsigned long eax, unsigned long ecx);
+unsigned long __get_wchan(struct task_struct *p);
extern void select_idle_routine(const struct cpuinfo_x86 *c);
-extern void init_c1e_mask(void);
+extern void amd_e400_c1e_apic_setup(void);
extern unsigned long boot_option_idle_override;
-extern bool c1e_detected;
enum idle_boot_override {IDLE_NO_OVERRIDE=0, IDLE_HALT, IDLE_NOMWAIT,
- IDLE_POLL, IDLE_FORCE_MWAIT};
+ IDLE_POLL};
extern void enable_sep_cpu(void);
-extern int sysenter_setup(void);
-extern void early_trap_init(void);
/* Defined in head.S */
extern struct desc_ptr early_gdt_descr;
-extern void cpu_set_gdt(int);
-extern void switch_to_new_gdt(int);
-extern void load_percpu_segment(int);
+extern void switch_gdt_and_percpu_base(int);
+extern void load_direct_gdt(int);
+extern void load_fixmap_gdt(int);
extern void cpu_init(void);
+extern void cpu_init_secondary(void);
+extern void cpu_init_exception_handling(void);
+extern void cr4_init(void);
static inline unsigned long get_debugctlmsr(void)
{
@@ -797,13 +577,7 @@ static inline void update_debugctlmsr(unsigned long debugctlmsr)
wrmsrl(MSR_IA32_DEBUGCTLMSR, debugctlmsr);
}
-/*
- * from system description table in BIOS. Mostly for MCA use, but
- * others may find it useful:
- */
-extern unsigned int machine_id;
-extern unsigned int machine_submodel_id;
-extern unsigned int BIOS_revision;
+extern void set_task_blockstep(struct task_struct *task, bool on);
/* Boot loader type from the setup header: */
extern int bootloader_type;
@@ -816,10 +590,10 @@ extern char ignore_fpu_irq;
#define ARCH_HAS_SPINLOCK_PREFETCH
#ifdef CONFIG_X86_32
-# define BASE_PREFETCH ASM_NOP4
+# define BASE_PREFETCH ""
# define ARCH_HAS_PREFETCH
#else
-# define BASE_PREFETCH "prefetcht0 (%1)"
+# define BASE_PREFETCH "prefetcht0 %P1"
#endif
/*
@@ -830,10 +604,9 @@ extern char ignore_fpu_irq;
*/
static inline void prefetch(const void *x)
{
- alternative_input(BASE_PREFETCH,
- "prefetchnta (%1)",
+ alternative_input(BASE_PREFETCH, "prefetchnta %P1",
X86_FEATURE_XMM,
- "r" (x));
+ "m" (*(const char *)x));
}
/*
@@ -841,12 +614,11 @@ static inline void prefetch(const void *x)
* Useful for spinlocks to avoid one state transition in the
* cache coherency protocol:
*/
-static inline void prefetchw(const void *x)
+static __always_inline void prefetchw(const void *x)
{
- alternative_input(BASE_PREFETCH,
- "prefetchw (%1)",
- X86_FEATURE_3DNOW,
- "r" (x));
+ alternative_input(BASE_PREFETCH, "prefetchw %P1",
+ X86_FEATURE_3DNOWPREFETCH,
+ "m" (*(const char *)x));
}
static inline void spin_lock_prefetch(const void *x)
@@ -854,102 +626,35 @@ static inline void spin_lock_prefetch(const void *x)
prefetchw(x);
}
-#ifdef CONFIG_X86_32
-/*
- * User space process size: 3GB (default).
- */
-#define TASK_SIZE PAGE_OFFSET
-#define TASK_SIZE_MAX TASK_SIZE
-#define STACK_TOP TASK_SIZE
-#define STACK_TOP_MAX STACK_TOP
-
-#define INIT_THREAD { \
- .sp0 = sizeof(init_stack) + (long)&init_stack, \
- .vm86_info = NULL, \
- .sysenter_cs = __KERNEL_CS, \
- .io_bitmap_ptr = NULL, \
-}
-
-/*
- * Note that the .io_bitmap member must be extra-big. This is because
- * the CPU will access an additional byte beyond the end of the IO
- * permission bitmap. The extra byte must be all 1 bits, and must
- * be within the limit.
- */
-#define INIT_TSS { \
- .x86_tss = { \
- .sp0 = sizeof(init_stack) + (long)&init_stack, \
- .ss0 = __KERNEL_DS, \
- .ss1 = __KERNEL_CS, \
- .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \
- }, \
- .io_bitmap = { [0 ... IO_BITMAP_LONGS] = ~0 }, \
-}
+#define TOP_OF_INIT_STACK ((unsigned long)&init_stack + sizeof(init_stack) - \
+ TOP_OF_KERNEL_STACK_PADDING)
-extern unsigned long thread_saved_pc(struct task_struct *tsk);
+#define task_top_of_stack(task) ((unsigned long)(task_pt_regs(task) + 1))
-#define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long))
-#define KSTK_TOP(info) \
-({ \
- unsigned long *__ptr = (unsigned long *)(info); \
- (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \
+#define task_pt_regs(task) \
+({ \
+ unsigned long __ptr = (unsigned long)task_stack_page(task); \
+ __ptr += THREAD_SIZE - TOP_OF_KERNEL_STACK_PADDING; \
+ ((struct pt_regs *)__ptr) - 1; \
})
-/*
- * The below -8 is to reserve 8 bytes on top of the ring0 stack.
- * This is necessary to guarantee that the entire "struct pt_regs"
- * is accessible even if the CPU haven't stored the SS/ESP registers
- * on the stack (interrupt gate does not save these registers
- * when switching to the same priv ring).
- * Therefore beware: accessing the ss/esp fields of the
- * "struct pt_regs" is possible, but they may contain the
- * completely wrong values.
- */
-#define task_pt_regs(task) \
-({ \
- struct pt_regs *__regs__; \
- __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \
- __regs__ - 1; \
-})
+#ifdef CONFIG_X86_32
+#define INIT_THREAD { \
+ .sp0 = TOP_OF_INIT_STACK, \
+ .sysenter_cs = __KERNEL_CS, \
+}
#define KSTK_ESP(task) (task_pt_regs(task)->sp)
#else
-/*
- * User space process size. 47bits minus one guard page.
- */
-#define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE)
-
-/* This decides where the kernel will search for a free chunk of vm
- * space during mmap's.
- */
-#define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \
- 0xc0000000 : 0xFFFFe000)
-
-#define TASK_SIZE (test_thread_flag(TIF_IA32) ? \
- IA32_PAGE_OFFSET : TASK_SIZE_MAX)
-#define TASK_SIZE_OF(child) ((test_tsk_thread_flag(child, TIF_IA32)) ? \
- IA32_PAGE_OFFSET : TASK_SIZE_MAX)
-
-#define STACK_TOP TASK_SIZE
-#define STACK_TOP_MAX TASK_SIZE_MAX
+extern unsigned long __end_init_task[];
-#define INIT_THREAD { \
- .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
+#define INIT_THREAD { \
+ .sp = (unsigned long)&__end_init_task - sizeof(struct pt_regs), \
}
-#define INIT_TSS { \
- .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \
-}
-
-/*
- * Return saved PC of a blocked thread.
- * What is this good for? it will be always the scheduler or ret_from_fork.
- */
-#define thread_saved_pc(t) (*(unsigned long *)((t)->thread.sp - 8))
-
-#define task_pt_regs(tsk) ((struct pt_regs *)(tsk)->thread.sp0 - 1)
extern unsigned long KSTK_ESP(struct task_struct *task);
+
#endif /* CONFIG_X86_64 */
extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
@@ -959,7 +664,8 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
* This decides where the kernel will search for a free chunk of vm
* space during mmap's.
*/
-#define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3))
+#define __TASK_UNMAPPED_BASE(task_size) (PAGE_ALIGN(task_size / 3))
+#define TASK_UNMAPPED_BASE __TASK_UNMAPPED_BASE(TASK_SIZE_LOW)
#define KSTK_EIP(task) (task_pt_regs(task)->ip)
@@ -970,55 +676,56 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
extern int get_tsc_mode(unsigned long adr);
extern int set_tsc_mode(unsigned int val);
-extern int amd_get_nb_id(int cpu);
+DECLARE_PER_CPU(u64, msr_misc_features_shadow);
-struct aperfmperf {
- u64 aperf, mperf;
-};
+extern u16 get_llc_id(unsigned int cpu);
-static inline void get_aperfmperf(struct aperfmperf *am)
-{
- WARN_ON_ONCE(!boot_cpu_has(X86_FEATURE_APERFMPERF));
+#ifdef CONFIG_CPU_SUP_AMD
+extern u32 amd_get_nodes_per_socket(void);
+extern u32 amd_get_highest_perf(void);
+#else
+static inline u32 amd_get_nodes_per_socket(void) { return 0; }
+static inline u32 amd_get_highest_perf(void) { return 0; }
+#endif
- rdmsrl(MSR_IA32_APERF, am->aperf);
- rdmsrl(MSR_IA32_MPERF, am->mperf);
-}
+extern unsigned long arch_align_stack(unsigned long sp);
+void free_init_pages(const char *what, unsigned long begin, unsigned long end);
+extern void free_kernel_image_pages(const char *what, void *begin, void *end);
-#define APERFMPERF_SHIFT 10
+void default_idle(void);
+#ifdef CONFIG_XEN
+bool xen_set_default_idle(void);
+#else
+#define xen_set_default_idle 0
+#endif
-static inline
-unsigned long calc_aperfmperf_ratio(struct aperfmperf *old,
- struct aperfmperf *new)
-{
- u64 aperf = new->aperf - old->aperf;
- u64 mperf = new->mperf - old->mperf;
- unsigned long ratio = aperf;
+void __noreturn stop_this_cpu(void *dummy);
+void microcode_check(struct cpuinfo_x86 *prev_info);
+void store_cpu_caps(struct cpuinfo_x86 *info);
+
+enum l1tf_mitigations {
+ L1TF_MITIGATION_OFF,
+ L1TF_MITIGATION_FLUSH_NOWARN,
+ L1TF_MITIGATION_FLUSH,
+ L1TF_MITIGATION_FLUSH_NOSMT,
+ L1TF_MITIGATION_FULL,
+ L1TF_MITIGATION_FULL_FORCE
+};
- mperf >>= APERFMPERF_SHIFT;
- if (mperf)
- ratio = div64_u64(aperf, mperf);
+extern enum l1tf_mitigations l1tf_mitigation;
- return ratio;
-}
+enum mds_mitigations {
+ MDS_MITIGATION_OFF,
+ MDS_MITIGATION_FULL,
+ MDS_MITIGATION_VMWERV,
+};
-/*
- * AMD errata checking
- */
-#ifdef CONFIG_CPU_SUP_AMD
-extern const int amd_erratum_383[];
-extern const int amd_erratum_400[];
-extern bool cpu_has_amd_erratum(const int *);
-
-#define AMD_LEGACY_ERRATUM(...) { -1, __VA_ARGS__, 0 }
-#define AMD_OSVW_ERRATUM(osvw_id, ...) { osvw_id, __VA_ARGS__, 0 }
-#define AMD_MODEL_RANGE(f, m_start, s_start, m_end, s_end) \
- ((f << 24) | (m_start << 16) | (s_start << 12) | (m_end << 4) | (s_end))
-#define AMD_MODEL_RANGE_FAMILY(range) (((range) >> 24) & 0xff)
-#define AMD_MODEL_RANGE_START(range) (((range) >> 12) & 0xfff)
-#define AMD_MODEL_RANGE_END(range) ((range) & 0xfff)
+#ifdef CONFIG_X86_SGX
+int arch_memory_failure(unsigned long pfn, int flags);
+#define arch_memory_failure arch_memory_failure
-#else
-#define cpu_has_amd_erratum(x) (false)
-#endif /* CONFIG_CPU_SUP_AMD */
+bool arch_is_platform_page(u64 paddr);
+#define arch_is_platform_page arch_is_platform_page
+#endif
#endif /* _ASM_X86_PROCESSOR_H */
diff --git a/arch/x86/include/asm/prom.h b/arch/x86/include/asm/prom.h
index 971e0b46446e..b716d291d0d4 100644
--- a/arch/x86/include/asm/prom.h
+++ b/arch/x86/include/asm/prom.h
@@ -1,13 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Definitions for Device tree / OpenFirmware handling on X86
*
* based on arch/powerpc/include/asm/prom.h which is
* Copyright (C) 1996-2005 Paul Mackerras.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
*/
#ifndef _ASM_X86_PROM_H
@@ -19,31 +15,17 @@
#include <linux/pci.h>
#include <asm/irq.h>
-#include <asm/atomic.h>
+#include <linux/atomic.h>
#include <asm/setup.h>
-#include <asm/irq_controller.h>
#ifdef CONFIG_OF
extern int of_ioapic;
extern u64 initial_dtb;
extern void add_dtb(u64 data);
-extern void x86_add_irq_domains(void);
-void __cpuinit x86_of_pci_init(void);
+void x86_of_pci_init(void);
void x86_dtb_init(void);
-
-static inline struct device_node *pci_device_to_OF_node(struct pci_dev *pdev)
-{
- return pdev ? pdev->dev.of_node : NULL;
-}
-
-static inline struct device_node *pci_bus_to_OF_node(struct pci_bus *bus)
-{
- return pci_device_to_OF_node(bus->self);
-}
-
#else
static inline void add_dtb(u64 data) { }
-static inline void x86_add_irq_domains(void) { }
static inline void x86_of_pci_init(void) { }
static inline void x86_dtb_init(void) { }
#define of_ioapic 0
@@ -51,19 +33,5 @@ static inline void x86_dtb_init(void) { }
extern char cmd_line[COMMAND_LINE_SIZE];
-#define pci_address_to_pio pci_address_to_pio
-unsigned long pci_address_to_pio(phys_addr_t addr);
-
-/**
- * irq_dispose_mapping - Unmap an interrupt
- * @virq: linux virq number of the interrupt to unmap
- *
- * FIXME: We really should implement proper virq handling like power,
- * but that's going to be major surgery.
- */
-static inline void irq_dispose_mapping(unsigned int virq) { }
-
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
#endif /* __ASSEMBLY__ */
#endif
diff --git a/arch/x86/include/asm/proto.h b/arch/x86/include/asm/proto.h
index 6f414ed88620..12ef86b19910 100644
--- a/arch/x86/include/asm/proto.h
+++ b/arch/x86/include/asm/proto.h
@@ -1,26 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PROTO_H
#define _ASM_X86_PROTO_H
#include <asm/ldt.h>
-/* misc architecture specific prototypes */
+struct task_struct;
-void early_idt_handler(void);
+/* misc architecture specific prototypes */
-void system_call(void);
void syscall_init(void);
-void ia32_syscall(void);
-void ia32_cstar_target(void);
-void ia32_sysenter_target(void);
-
-void syscall32_cpu_init(void);
+#ifdef CONFIG_X86_64
+void entry_SYSCALL_64(void);
+void entry_SYSCALL_64_safe_stack(void);
+void entry_SYSRETQ_unsafe_stack(void);
+void entry_SYSRETQ_end(void);
+long do_arch_prctl_64(struct task_struct *task, int option, unsigned long arg2);
+#endif
+
+#ifdef CONFIG_X86_32
+void entry_INT80_32(void);
+void entry_SYSENTER_32(void);
+void __begin_SYSENTER_singlestep_region(void);
+void __end_SYSENTER_singlestep_region(void);
+#endif
+
+#ifdef CONFIG_IA32_EMULATION
+void entry_SYSENTER_compat(void);
+void __end_entry_SYSENTER_compat(void);
+void entry_SYSCALL_compat(void);
+void entry_SYSCALL_compat_safe_stack(void);
+void entry_SYSRETL_compat_unsafe_stack(void);
+void entry_SYSRETL_compat_end(void);
+void entry_INT80_compat(void);
+#ifdef CONFIG_XEN_PV
+void xen_entry_INT80_compat(void);
+#endif
+#endif
void x86_configure_nx(void);
-void x86_report_nx(void);
extern int reboot_force;
-long do_arch_prctl(struct task_struct *task, int code, unsigned long addr);
+long do_arch_prctl_common(int option, unsigned long arg2);
#endif /* _ASM_X86_PROTO_H */
diff --git a/arch/x86/include/asm/pti.h b/arch/x86/include/asm/pti.h
new file mode 100644
index 000000000000..07375b476c4f
--- /dev/null
+++ b/arch/x86/include/asm/pti.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_PTI_H
+#define _ASM_X86_PTI_H
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_PAGE_TABLE_ISOLATION
+extern void pti_init(void);
+extern void pti_check_boottime_disable(void);
+extern void pti_finalize(void);
+#else
+static inline void pti_check_boottime_disable(void) { }
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_X86_PTI_H */
diff --git a/arch/x86/include/asm/ptrace.h b/arch/x86/include/asm/ptrace.h
index 1babf8adecdf..f4db78b09c8f 100644
--- a/arch/x86/include/asm/ptrace.h
+++ b/arch/x86/include/asm/ptrace.h
@@ -1,46 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PTRACE_H
#define _ASM_X86_PTRACE_H
-#include <linux/compiler.h> /* For __user */
-#include <asm/ptrace-abi.h>
-#include <asm/processor-flags.h>
-
-#ifdef __KERNEL__
#include <asm/segment.h>
#include <asm/page_types.h>
-#endif
+#include <uapi/asm/ptrace.h>
#ifndef __ASSEMBLY__
-
#ifdef __i386__
-/* this struct defines the way the registers are stored on the
- stack during a system call. */
-
-#ifndef __KERNEL__
-
-struct pt_regs {
- long ebx;
- long ecx;
- long edx;
- long esi;
- long edi;
- long ebp;
- long eax;
- int xds;
- int xes;
- int xfs;
- int xgs;
- long orig_eax;
- long eip;
- int xcs;
- long eflags;
- long esp;
- int xss;
-};
-
-#else /* __KERNEL__ */
struct pt_regs {
+ /*
+ * NB: 32-bit x86 CPUs are inconsistent as what happens in the
+ * following cases (where %seg represents a segment register):
+ *
+ * - pushl %seg: some do a 16-bit write and leave the high
+ * bits alone
+ * - movl %seg, [mem]: some do a 16-bit write despite the movl
+ * - IDT entry: some (e.g. 486) will leave the high bits of CS
+ * and (if applicable) SS undefined.
+ *
+ * Fortunately, x86-32 doesn't read the high bits on POP or IRET,
+ * so we can just treat all of the segment registers as 16-bit
+ * values.
+ */
unsigned long bx;
unsigned long cx;
unsigned long dx;
@@ -48,62 +31,43 @@ struct pt_regs {
unsigned long di;
unsigned long bp;
unsigned long ax;
- unsigned long ds;
- unsigned long es;
- unsigned long fs;
- unsigned long gs;
+ unsigned short ds;
+ unsigned short __dsh;
+ unsigned short es;
+ unsigned short __esh;
+ unsigned short fs;
+ unsigned short __fsh;
+ /*
+ * On interrupt, gs and __gsh store the vector number. They never
+ * store gs any more.
+ */
+ unsigned short gs;
+ unsigned short __gsh;
+ /* On interrupt, this is the error code. */
unsigned long orig_ax;
unsigned long ip;
- unsigned long cs;
+ unsigned short cs;
+ unsigned short __csh;
unsigned long flags;
unsigned long sp;
- unsigned long ss;
+ unsigned short ss;
+ unsigned short __ssh;
};
-#endif /* __KERNEL__ */
-
#else /* __i386__ */
-#ifndef __KERNEL__
-
-struct pt_regs {
- unsigned long r15;
- unsigned long r14;
- unsigned long r13;
- unsigned long r12;
- unsigned long rbp;
- unsigned long rbx;
-/* arguments: non interrupts/non tracing syscalls only save up to here*/
- unsigned long r11;
- unsigned long r10;
- unsigned long r9;
- unsigned long r8;
- unsigned long rax;
- unsigned long rcx;
- unsigned long rdx;
- unsigned long rsi;
- unsigned long rdi;
- unsigned long orig_rax;
-/* end of arguments */
-/* cpu exception frame or undefined */
- unsigned long rip;
- unsigned long cs;
- unsigned long eflags;
- unsigned long rsp;
- unsigned long ss;
-/* top of stack page */
-};
-
-#else /* __KERNEL__ */
-
struct pt_regs {
+/*
+ * C ABI says these regs are callee-preserved. They aren't saved on kernel entry
+ * unless syscall needs a complete, fully filled "struct pt_regs".
+ */
unsigned long r15;
unsigned long r14;
unsigned long r13;
unsigned long r12;
unsigned long bp;
unsigned long bx;
-/* arguments: non interrupts/non tracing syscalls only save up to here*/
+/* These regs are callee-clobbered. Always saved on kernel entry. */
unsigned long r11;
unsigned long r10;
unsigned long r9;
@@ -113,9 +77,12 @@ struct pt_regs {
unsigned long dx;
unsigned long si;
unsigned long di;
+/*
+ * On syscall entry, this is syscall#. On CPU exception, this is error code.
+ * On hw interrupt, it's IRQ number:
+ */
unsigned long orig_ax;
-/* end of arguments */
-/* cpu exception frame or undefined */
+/* Return frame for iretq */
unsigned long ip;
unsigned long cs;
unsigned long flags;
@@ -124,13 +91,13 @@ struct pt_regs {
/* top of stack page */
};
-#endif /* __KERNEL__ */
#endif /* !__i386__ */
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt_types.h>
+#endif
-#ifdef __KERNEL__
-
-#include <linux/init.h>
+#include <asm/proto.h>
struct cpuinfo_x86;
struct task_struct;
@@ -139,67 +106,102 @@ extern unsigned long profile_pc(struct pt_regs *regs);
extern unsigned long
convert_ip_to_linear(struct task_struct *child, struct pt_regs *regs);
-extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs,
- int error_code, int si_code);
-void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
+extern void send_sigtrap(struct pt_regs *regs, int error_code, int si_code);
-extern long syscall_trace_enter(struct pt_regs *);
-extern void syscall_trace_leave(struct pt_regs *);
static inline unsigned long regs_return_value(struct pt_regs *regs)
{
return regs->ax;
}
+static inline void regs_set_return_value(struct pt_regs *regs, unsigned long rc)
+{
+ regs->ax = rc;
+}
+
/*
- * user_mode_vm(regs) determines whether a register set came from user mode.
- * This is true if V8086 mode was enabled OR if the register set was from
- * protected mode with RPL-3 CS value. This tricky test checks that with
- * one comparison. Many places in the kernel can bypass this full check
- * if they have already ruled out V8086 mode, so user_mode(regs) can be used.
+ * user_mode(regs) determines whether a register set came from user
+ * mode. On x86_32, this is true if V8086 mode was enabled OR if the
+ * register set was from protected mode with RPL-3 CS value. This
+ * tricky test checks that with one comparison.
+ *
+ * On x86_64, vm86 mode is mercifully nonexistent, and we don't need
+ * the extra check.
*/
-static inline int user_mode(struct pt_regs *regs)
+static __always_inline int user_mode(struct pt_regs *regs)
{
#ifdef CONFIG_X86_32
- return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL;
+ return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >= USER_RPL;
#else
return !!(regs->cs & 3);
#endif
}
-static inline int user_mode_vm(struct pt_regs *regs)
+static __always_inline int v8086_mode(struct pt_regs *regs)
{
#ifdef CONFIG_X86_32
- return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >=
- USER_RPL;
+ return (regs->flags & X86_VM_MASK);
#else
- return user_mode(regs);
+ return 0; /* No V86 mode support in long mode */
#endif
}
-static inline int v8086_mode(struct pt_regs *regs)
+static inline bool user_64bit_mode(struct pt_regs *regs)
{
-#ifdef CONFIG_X86_32
- return (regs->flags & X86_VM_MASK);
+#ifdef CONFIG_X86_64
+#ifndef CONFIG_PARAVIRT_XXL
+ /*
+ * On non-paravirt systems, this is the only long mode CPL 3
+ * selector. We do not allow long mode selectors in the LDT.
+ */
+ return regs->cs == __USER_CS;
#else
- return 0; /* No V86 mode support in long mode */
+ /* Headers are too twisted for this to go in paravirt.h. */
+ return regs->cs == __USER_CS || regs->cs == pv_info.extra_user_64bit_cs;
+#endif
+#else /* !CONFIG_X86_64 */
+ return false;
#endif
}
/*
- * X86_32 CPUs don't save ss and esp if the CPU is already in kernel mode
- * when it traps. The previous stack will be directly underneath the saved
- * registers, and 'sp/ss' won't even have been saved. Thus the '&regs->sp'.
- *
- * This is valid only for kernel mode traps.
+ * Determine whether the register set came from any context that is running in
+ * 64-bit mode.
*/
-static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
+static inline bool any_64bit_mode(struct pt_regs *regs)
{
-#ifdef CONFIG_X86_32
- return (unsigned long)(&regs->sp);
+#ifdef CONFIG_X86_64
+ return !user_mode(regs) || user_64bit_mode(regs);
#else
- return regs->sp;
+ return false;
+#endif
+}
+
+#ifdef CONFIG_X86_64
+#define current_user_stack_pointer() current_pt_regs()->sp
+#define compat_user_stack_pointer() current_pt_regs()->sp
+
+static __always_inline bool ip_within_syscall_gap(struct pt_regs *regs)
+{
+ bool ret = (regs->ip >= (unsigned long)entry_SYSCALL_64 &&
+ regs->ip < (unsigned long)entry_SYSCALL_64_safe_stack);
+
+ ret = ret || (regs->ip >= (unsigned long)entry_SYSRETQ_unsafe_stack &&
+ regs->ip < (unsigned long)entry_SYSRETQ_end);
+#ifdef CONFIG_IA32_EMULATION
+ ret = ret || (regs->ip >= (unsigned long)entry_SYSCALL_compat &&
+ regs->ip < (unsigned long)entry_SYSCALL_compat_safe_stack);
+ ret = ret || (regs->ip >= (unsigned long)entry_SYSRETL_compat_unsafe_stack &&
+ regs->ip < (unsigned long)entry_SYSRETL_compat_end);
#endif
+
+ return ret;
+}
+#endif
+
+static inline unsigned long kernel_stack_pointer(struct pt_regs *regs)
+{
+ return regs->sp;
}
static inline unsigned long instruction_pointer(struct pt_regs *regs)
@@ -207,6 +209,12 @@ static inline unsigned long instruction_pointer(struct pt_regs *regs)
return regs->ip;
}
+static inline void instruction_pointer_set(struct pt_regs *regs,
+ unsigned long val)
+{
+ regs->ip = val;
+}
+
static inline unsigned long frame_pointer(struct pt_regs *regs)
{
return regs->bp;
@@ -217,6 +225,17 @@ static inline unsigned long user_stack_pointer(struct pt_regs *regs)
return regs->sp;
}
+static inline void user_stack_pointer_set(struct pt_regs *regs,
+ unsigned long val)
+{
+ regs->sp = val;
+}
+
+static __always_inline bool regs_irqs_disabled(struct pt_regs *regs)
+{
+ return !(regs->flags & X86_EFLAGS_IF);
+}
+
/* Query offset/name of register from its name/offset */
extern int regs_query_register_offset(const char *name);
extern const char *regs_query_register_name(unsigned int offset);
@@ -236,6 +255,18 @@ static inline unsigned long regs_get_register(struct pt_regs *regs,
{
if (unlikely(offset > MAX_REG_OFFSET))
return 0;
+#ifdef CONFIG_X86_32
+ /* The selector fields are 16-bit. */
+ if (offset == offsetof(struct pt_regs, cs) ||
+ offset == offsetof(struct pt_regs, ss) ||
+ offset == offsetof(struct pt_regs, ds) ||
+ offset == offsetof(struct pt_regs, es) ||
+ offset == offsetof(struct pt_regs, fs) ||
+ offset == offsetof(struct pt_regs, gs)) {
+ return *(u16 *)((unsigned long)regs + offset);
+
+ }
+#endif
return *(unsigned long *)((unsigned long)regs + offset);
}
@@ -250,28 +281,93 @@ static inline unsigned long regs_get_register(struct pt_regs *regs,
static inline int regs_within_kernel_stack(struct pt_regs *regs,
unsigned long addr)
{
- return ((addr & ~(THREAD_SIZE - 1)) ==
- (kernel_stack_pointer(regs) & ~(THREAD_SIZE - 1)));
+ return ((addr & ~(THREAD_SIZE - 1)) == (regs->sp & ~(THREAD_SIZE - 1)));
+}
+
+/**
+ * regs_get_kernel_stack_nth_addr() - get the address of the Nth entry on stack
+ * @regs: pt_regs which contains kernel stack pointer.
+ * @n: stack entry number.
+ *
+ * regs_get_kernel_stack_nth() returns the address of the @n th entry of the
+ * kernel stack which is specified by @regs. If the @n th entry is NOT in
+ * the kernel stack, this returns NULL.
+ */
+static inline unsigned long *regs_get_kernel_stack_nth_addr(struct pt_regs *regs, unsigned int n)
+{
+ unsigned long *addr = (unsigned long *)regs->sp;
+
+ addr += n;
+ if (regs_within_kernel_stack(regs, (unsigned long)addr))
+ return addr;
+ else
+ return NULL;
}
+/* To avoid include hell, we can't include uaccess.h */
+extern long copy_from_kernel_nofault(void *dst, const void *src, size_t size);
+
/**
* regs_get_kernel_stack_nth() - get Nth entry of the stack
* @regs: pt_regs which contains kernel stack pointer.
* @n: stack entry number.
*
* regs_get_kernel_stack_nth() returns @n th entry of the kernel stack which
- * is specified by @regs. If the @n th entry is NOT in the kernel stack,
+ * is specified by @regs. If the @n th entry is NOT in the kernel stack
* this returns 0.
*/
static inline unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs,
unsigned int n)
{
- unsigned long *addr = (unsigned long *)kernel_stack_pointer(regs);
- addr += n;
- if (regs_within_kernel_stack(regs, (unsigned long)addr))
- return *addr;
- else
- return 0;
+ unsigned long *addr;
+ unsigned long val;
+ long ret;
+
+ addr = regs_get_kernel_stack_nth_addr(regs, n);
+ if (addr) {
+ ret = copy_from_kernel_nofault(&val, addr, sizeof(val));
+ if (!ret)
+ return val;
+ }
+ return 0;
+}
+
+/**
+ * regs_get_kernel_argument() - get Nth function argument in kernel
+ * @regs: pt_regs of that context
+ * @n: function argument number (start from 0)
+ *
+ * regs_get_argument() returns @n th argument of the function call.
+ * Note that this chooses most probably assignment, in some case
+ * it can be incorrect.
+ * This is expected to be called from kprobes or ftrace with regs
+ * where the top of stack is the return address.
+ */
+static inline unsigned long regs_get_kernel_argument(struct pt_regs *regs,
+ unsigned int n)
+{
+ static const unsigned int argument_offs[] = {
+#ifdef __i386__
+ offsetof(struct pt_regs, ax),
+ offsetof(struct pt_regs, dx),
+ offsetof(struct pt_regs, cx),
+#define NR_REG_ARGUMENTS 3
+#else
+ offsetof(struct pt_regs, di),
+ offsetof(struct pt_regs, si),
+ offsetof(struct pt_regs, dx),
+ offsetof(struct pt_regs, cx),
+ offsetof(struct pt_regs, r8),
+ offsetof(struct pt_regs, r9),
+#define NR_REG_ARGUMENTS 6
+#endif
+ };
+
+ if (n >= NR_REG_ARGUMENTS) {
+ n -= NR_REG_ARGUMENTS - 1;
+ return regs_get_kernel_stack_nth(regs, n);
+ } else
+ return regs_get_register(regs, argument_offs[n]);
}
#define arch_has_single_step() (1)
@@ -281,7 +377,7 @@ static inline unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs,
#define arch_has_block_step() (boot_cpu_data.x86 >= 6)
#endif
-#define ARCH_HAS_USER_SINGLE_STEP_INFO
+#define ARCH_HAS_USER_SINGLE_STEP_REPORT
struct user_desc;
extern int do_get_thread_area(struct task_struct *p, int idx,
@@ -289,8 +385,11 @@ extern int do_get_thread_area(struct task_struct *p, int idx,
extern int do_set_thread_area(struct task_struct *p, int idx,
struct user_desc __user *info, int can_allocate);
-#endif /* __KERNEL__ */
+#ifdef CONFIG_X86_64
+# define do_set_thread_area_64(p, s, t) do_arch_prctl_64(p, s, t)
+#else
+# define do_set_thread_area_64(p, s, t) (0)
+#endif
#endif /* !__ASSEMBLY__ */
-
#endif /* _ASM_X86_PTRACE_H */
diff --git a/arch/x86/include/asm/purgatory.h b/arch/x86/include/asm/purgatory.h
new file mode 100644
index 000000000000..5528e9325049
--- /dev/null
+++ b/arch/x86/include/asm/purgatory.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_PURGATORY_H
+#define _ASM_X86_PURGATORY_H
+
+#ifndef __ASSEMBLY__
+#include <linux/purgatory.h>
+
+extern void purgatory(void);
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_PURGATORY_H */
diff --git a/arch/x86/include/asm/pvclock-abi.h b/arch/x86/include/asm/pvclock-abi.h
index 35f2d1948ada..1436226efe3e 100644
--- a/arch/x86/include/asm/pvclock-abi.h
+++ b/arch/x86/include/asm/pvclock-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PVCLOCK_ABI_H
#define _ASM_X86_PVCLOCK_ABI_H
#ifndef __ASSEMBLY__
@@ -40,5 +41,8 @@ struct pvclock_wall_clock {
} __attribute__((__packed__));
#define PVCLOCK_TSC_STABLE_BIT (1 << 0)
+#define PVCLOCK_GUEST_STOPPED (1 << 1)
+/* PVCLOCK_COUNTS_FROM_ZERO broke ABI and can't be used anymore. */
+#define PVCLOCK_COUNTS_FROM_ZERO (1 << 2)
#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_PVCLOCK_ABI_H */
diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
index 31d84acc1512..0c92db84469d 100644
--- a/arch/x86/include/asm/pvclock.h
+++ b/arch/x86/include/asm/pvclock.h
@@ -1,27 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PVCLOCK_H
#define _ASM_X86_PVCLOCK_H
-#include <linux/clocksource.h>
+#include <asm/clocksource.h>
#include <asm/pvclock-abi.h>
/* some helper functions for xen and kvm pv clock sources */
-cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src);
+u64 pvclock_clocksource_read(struct pvclock_vcpu_time_info *src);
+u64 pvclock_clocksource_read_nowd(struct pvclock_vcpu_time_info *src);
+u8 pvclock_read_flags(struct pvclock_vcpu_time_info *src);
void pvclock_set_flags(u8 flags);
unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src);
void pvclock_read_wallclock(struct pvclock_wall_clock *wall,
struct pvclock_vcpu_time_info *vcpu,
- struct timespec *ts);
+ struct timespec64 *ts);
void pvclock_resume(void);
+void pvclock_touch_watchdogs(void);
+
+static __always_inline
+unsigned pvclock_read_begin(const struct pvclock_vcpu_time_info *src)
+{
+ unsigned version = src->version & ~1;
+ /* Make sure that the version is read before the data. */
+ virt_rmb();
+ return version;
+}
+
+static __always_inline
+bool pvclock_read_retry(const struct pvclock_vcpu_time_info *src,
+ unsigned version)
+{
+ /* Make sure that the version is re-read after the data. */
+ virt_rmb();
+ return unlikely(version != src->version);
+}
+
/*
* Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction,
* yielding a 64-bit result.
*/
-static inline u64 pvclock_scale_delta(u64 delta, u32 mul_frac, int shift)
+static __always_inline u64 pvclock_scale_delta(u64 delta, u32 mul_frac, int shift)
{
u64 product;
#ifdef __i386__
u32 tmp1, tmp2;
+#else
+ ulong tmp;
#endif
if (shift < 0)
@@ -42,8 +67,11 @@ static inline u64 pvclock_scale_delta(u64 delta, u32 mul_frac, int shift)
: "a" ((u32)delta), "1" ((u32)(delta >> 32)), "2" (mul_frac) );
#elif defined(__x86_64__)
__asm__ (
- "mul %%rdx ; shrd $32,%%rdx,%%rax"
- : "=a" (product) : "0" (delta), "d" ((u64)mul_frac) );
+ "mulq %[mul_frac] ; shrd $32, %[hi], %[lo]"
+ : [lo]"=a"(product),
+ [hi]"=d"(tmp)
+ : "0"(delta),
+ [mul_frac]"rm"((u64)mul_frac));
#else
#error implement me!
#endif
@@ -51,4 +79,29 @@ static inline u64 pvclock_scale_delta(u64 delta, u32 mul_frac, int shift)
return product;
}
+static __always_inline
+u64 __pvclock_read_cycles(const struct pvclock_vcpu_time_info *src, u64 tsc)
+{
+ u64 delta = tsc - src->tsc_timestamp;
+ u64 offset = pvclock_scale_delta(delta, src->tsc_to_system_mul,
+ src->tsc_shift);
+ return src->system_time + offset;
+}
+
+struct pvclock_vsyscall_time_info {
+ struct pvclock_vcpu_time_info pvti;
+} __attribute__((__aligned__(SMP_CACHE_BYTES)));
+
+#define PVTI_SIZE sizeof(struct pvclock_vsyscall_time_info)
+
+#ifdef CONFIG_PARAVIRT_CLOCK
+void pvclock_set_pvti_cpu0_va(struct pvclock_vsyscall_time_info *pvti);
+struct pvclock_vsyscall_time_info *pvclock_get_pvti_cpu0_va(void);
+#else
+static inline struct pvclock_vsyscall_time_info *pvclock_get_pvti_cpu0_va(void)
+{
+ return NULL;
+}
+#endif
+
#endif /* _ASM_X86_PVCLOCK_H */
diff --git a/arch/x86/include/asm/qrwlock.h b/arch/x86/include/asm/qrwlock.h
new file mode 100644
index 000000000000..8656b5a6e8e7
--- /dev/null
+++ b/arch/x86/include/asm/qrwlock.h
@@ -0,0 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_QRWLOCK_H
+#define _ASM_X86_QRWLOCK_H
+
+#include <asm-generic/qrwlock_types.h>
+#include <asm-generic/qrwlock.h>
+
+#endif /* _ASM_X86_QRWLOCK_H */
diff --git a/arch/x86/include/asm/qspinlock.h b/arch/x86/include/asm/qspinlock.h
new file mode 100644
index 000000000000..d87451df480b
--- /dev/null
+++ b/arch/x86/include/asm/qspinlock.h
@@ -0,0 +1,114 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_QSPINLOCK_H
+#define _ASM_X86_QSPINLOCK_H
+
+#include <linux/jump_label.h>
+#include <asm/cpufeature.h>
+#include <asm-generic/qspinlock_types.h>
+#include <asm/paravirt.h>
+#include <asm/rmwcc.h>
+
+#define _Q_PENDING_LOOPS (1 << 9)
+
+#define queued_fetch_set_pending_acquire queued_fetch_set_pending_acquire
+static __always_inline u32 queued_fetch_set_pending_acquire(struct qspinlock *lock)
+{
+ u32 val;
+
+ /*
+ * We can't use GEN_BINARY_RMWcc() inside an if() stmt because asm goto
+ * and CONFIG_PROFILE_ALL_BRANCHES=y results in a label inside a
+ * statement expression, which GCC doesn't like.
+ */
+ val = GEN_BINARY_RMWcc(LOCK_PREFIX "btsl", lock->val.counter, c,
+ "I", _Q_PENDING_OFFSET) * _Q_PENDING_VAL;
+ val |= atomic_read(&lock->val) & ~_Q_PENDING_MASK;
+
+ return val;
+}
+
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+extern void native_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
+extern void __pv_init_lock_hash(void);
+extern void __pv_queued_spin_lock_slowpath(struct qspinlock *lock, u32 val);
+extern void __raw_callee_save___pv_queued_spin_unlock(struct qspinlock *lock);
+extern bool nopvspin;
+
+#define queued_spin_unlock queued_spin_unlock
+/**
+ * queued_spin_unlock - release a queued spinlock
+ * @lock : Pointer to queued spinlock structure
+ *
+ * A smp_store_release() on the least-significant byte.
+ */
+static inline void native_queued_spin_unlock(struct qspinlock *lock)
+{
+ smp_store_release(&lock->locked, 0);
+}
+
+static inline void queued_spin_lock_slowpath(struct qspinlock *lock, u32 val)
+{
+ pv_queued_spin_lock_slowpath(lock, val);
+}
+
+static inline void queued_spin_unlock(struct qspinlock *lock)
+{
+ kcsan_release();
+ pv_queued_spin_unlock(lock);
+}
+
+#define vcpu_is_preempted vcpu_is_preempted
+static inline bool vcpu_is_preempted(long cpu)
+{
+ return pv_vcpu_is_preempted(cpu);
+}
+#endif
+
+#ifdef CONFIG_PARAVIRT
+/*
+ * virt_spin_lock_key - enables (by default) the virt_spin_lock() hijack.
+ *
+ * Native (and PV wanting native due to vCPU pinning) should disable this key.
+ * It is done in this backwards fashion to only have a single direction change,
+ * which removes ordering between native_pv_spin_init() and HV setup.
+ */
+DECLARE_STATIC_KEY_TRUE(virt_spin_lock_key);
+
+void native_pv_lock_init(void) __init;
+
+/*
+ * Shortcut for the queued_spin_lock_slowpath() function that allows
+ * virt to hijack it.
+ *
+ * Returns:
+ * true - lock has been negotiated, all done;
+ * false - queued_spin_lock_slowpath() will do its thing.
+ */
+#define virt_spin_lock virt_spin_lock
+static inline bool virt_spin_lock(struct qspinlock *lock)
+{
+ if (!static_branch_likely(&virt_spin_lock_key))
+ return false;
+
+ /*
+ * On hypervisors without PARAVIRT_SPINLOCKS support we fall
+ * back to a Test-and-Set spinlock, because fair locks have
+ * horrible lock 'holder' preemption issues.
+ */
+
+ do {
+ while (atomic_read(&lock->val) != 0)
+ cpu_relax();
+ } while (atomic_cmpxchg(&lock->val, 0, _Q_LOCKED_VAL) != 0);
+
+ return true;
+}
+#else
+static inline void native_pv_lock_init(void)
+{
+}
+#endif /* CONFIG_PARAVIRT */
+
+#include <asm-generic/qspinlock.h>
+
+#endif /* _ASM_X86_QSPINLOCK_H */
diff --git a/arch/x86/include/asm/qspinlock_paravirt.h b/arch/x86/include/asm/qspinlock_paravirt.h
new file mode 100644
index 000000000000..42b17cf10b10
--- /dev/null
+++ b/arch/x86/include/asm/qspinlock_paravirt.h
@@ -0,0 +1,66 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_QSPINLOCK_PARAVIRT_H
+#define __ASM_QSPINLOCK_PARAVIRT_H
+
+#include <asm/ibt.h>
+
+/*
+ * For x86-64, PV_CALLEE_SAVE_REGS_THUNK() saves and restores 8 64-bit
+ * registers. For i386, however, only 1 32-bit register needs to be saved
+ * and restored. So an optimized version of __pv_queued_spin_unlock() is
+ * hand-coded for 64-bit, but it isn't worthwhile to do it for 32-bit.
+ */
+#ifdef CONFIG_64BIT
+
+__PV_CALLEE_SAVE_REGS_THUNK(__pv_queued_spin_unlock_slowpath, ".spinlock.text");
+#define __pv_queued_spin_unlock __pv_queued_spin_unlock
+
+/*
+ * Optimized assembly version of __raw_callee_save___pv_queued_spin_unlock
+ * which combines the registers saving trunk and the body of the following
+ * C code. Note that it puts the code in the .spinlock.text section which
+ * is equivalent to adding __lockfunc in the C code:
+ *
+ * void __lockfunc __pv_queued_spin_unlock(struct qspinlock *lock)
+ * {
+ * u8 lockval = cmpxchg(&lock->locked, _Q_LOCKED_VAL, 0);
+ *
+ * if (likely(lockval == _Q_LOCKED_VAL))
+ * return;
+ * pv_queued_spin_unlock_slowpath(lock, lockval);
+ * }
+ *
+ * For x86-64,
+ * rdi = lock (first argument)
+ * rsi = lockval (second argument)
+ * rdx = internal variable (set to 0)
+ */
+#define PV_UNLOCK_ASM \
+ FRAME_BEGIN \
+ "push %rdx\n\t" \
+ "mov $0x1,%eax\n\t" \
+ "xor %edx,%edx\n\t" \
+ LOCK_PREFIX "cmpxchg %dl,(%rdi)\n\t" \
+ "cmp $0x1,%al\n\t" \
+ "jne .slowpath\n\t" \
+ "pop %rdx\n\t" \
+ FRAME_END \
+ ASM_RET \
+ ".slowpath:\n\t" \
+ "push %rsi\n\t" \
+ "movzbl %al,%esi\n\t" \
+ "call __raw_callee_save___pv_queued_spin_unlock_slowpath\n\t" \
+ "pop %rsi\n\t" \
+ "pop %rdx\n\t" \
+ FRAME_END
+
+DEFINE_PARAVIRT_ASM(__raw_callee_save___pv_queued_spin_unlock,
+ PV_UNLOCK_ASM, .spinlock.text);
+
+#else /* CONFIG_64BIT */
+
+extern void __lockfunc __pv_queued_spin_unlock(struct qspinlock *lock);
+__PV_CALLEE_SAVE_REGS_THUNK(__pv_queued_spin_unlock, ".spinlock.text");
+
+#endif /* CONFIG_64BIT */
+#endif
diff --git a/arch/x86/include/asm/realmode.h b/arch/x86/include/asm/realmode.h
new file mode 100644
index 000000000000..f6a1737c77be
--- /dev/null
+++ b/arch/x86/include/asm/realmode.h
@@ -0,0 +1,97 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ARCH_X86_REALMODE_H
+#define _ARCH_X86_REALMODE_H
+
+/*
+ * Flag bit definitions for use with the flags field of the trampoline header
+ * in the CONFIG_X86_64 variant.
+ */
+#define TH_FLAGS_SME_ACTIVE_BIT 0
+#define TH_FLAGS_SME_ACTIVE BIT(TH_FLAGS_SME_ACTIVE_BIT)
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+#include <asm/io.h>
+
+/* This must match data at realmode/rm/header.S */
+struct real_mode_header {
+ u32 text_start;
+ u32 ro_end;
+ /* SMP trampoline */
+ u32 trampoline_start;
+ u32 trampoline_header;
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+ u32 sev_es_trampoline_start;
+#endif
+#ifdef CONFIG_X86_64
+ u32 trampoline_start64;
+ u32 trampoline_pgd;
+#endif
+ /* ACPI S3 wakeup */
+#ifdef CONFIG_ACPI_SLEEP
+ u32 wakeup_start;
+ u32 wakeup_header;
+#endif
+ /* APM/BIOS reboot */
+ u32 machine_real_restart_asm;
+#ifdef CONFIG_X86_64
+ u32 machine_real_restart_seg;
+#endif
+};
+
+/* This must match data at realmode/rm/trampoline_{32,64}.S */
+struct trampoline_header {
+#ifdef CONFIG_X86_32
+ u32 start;
+ u16 gdt_pad;
+ u16 gdt_limit;
+ u32 gdt_base;
+#else
+ u64 start;
+ u64 efer;
+ u32 cr4;
+ u32 flags;
+#endif
+};
+
+extern struct real_mode_header *real_mode_header;
+extern unsigned char real_mode_blob_end[];
+
+extern unsigned long initial_code;
+extern unsigned long initial_stack;
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+extern unsigned long initial_vc_handler;
+#endif
+
+extern unsigned char real_mode_blob[];
+extern unsigned char real_mode_relocs[];
+
+#ifdef CONFIG_X86_32
+extern unsigned char startup_32_smp[];
+extern unsigned char boot_gdt[];
+#else
+extern unsigned char secondary_startup_64[];
+extern unsigned char secondary_startup_64_no_verify[];
+#endif
+
+static inline size_t real_mode_size_needed(void)
+{
+ if (real_mode_header)
+ return 0; /* already allocated. */
+
+ return ALIGN(real_mode_blob_end - real_mode_blob, PAGE_SIZE);
+}
+
+static inline void set_real_mode_mem(phys_addr_t mem)
+{
+ real_mode_header = (struct real_mode_header *) __va(mem);
+}
+
+void reserve_real_mode(void);
+void load_trampoline_pgtable(void);
+void init_real_mode(void);
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ARCH_X86_REALMODE_H */
diff --git a/arch/x86/include/asm/reboot.h b/arch/x86/include/asm/reboot.h
index 3250e3d605d9..9177b4354c3f 100644
--- a/arch/x86/include/asm/reboot.h
+++ b/arch/x86/include/asm/reboot.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_REBOOT_H
#define _ASM_X86_REBOOT_H
@@ -15,15 +16,19 @@ struct machine_ops {
};
extern struct machine_ops machine_ops;
+extern int crashing_cpu;
void native_machine_crash_shutdown(struct pt_regs *regs);
void native_machine_shutdown(void);
-void machine_real_restart(unsigned int type);
-/* These must match dispatch_table in reboot_32.S */
+void __noreturn machine_real_restart(unsigned int type);
+/* These must match dispatch in arch/x86/realmore/rm/reboot.S */
#define MRR_BIOS 0
#define MRR_APM 1
-typedef void (*nmi_shootdown_cb)(int, struct die_args*);
+void cpu_emergency_disable_virtualization(void);
+
+typedef void (*nmi_shootdown_cb)(int, struct pt_regs*);
void nmi_shootdown_cpus(nmi_shootdown_cb callback);
+void run_crash_ipi_callback(struct pt_regs *regs);
#endif /* _ASM_X86_REBOOT_H */
diff --git a/arch/x86/include/asm/reboot_fixups.h b/arch/x86/include/asm/reboot_fixups.h
index 765debe4c54c..96515658ce12 100644
--- a/arch/x86/include/asm/reboot_fixups.h
+++ b/arch/x86/include/asm/reboot_fixups.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_REBOOT_FIXUPS_H
#define _ASM_X86_REBOOT_FIXUPS_H
diff --git a/arch/x86/include/asm/required-features.h b/arch/x86/include/asm/required-features.h
index 6c7fc25f2c34..7ba1726b71c7 100644
--- a/arch/x86/include/asm/required-features.h
+++ b/arch/x86/include/asm/required-features.h
@@ -35,11 +35,7 @@
# define NEED_CMOV 0
#endif
-#ifdef CONFIG_X86_USE_3DNOW
-# define NEED_3DNOW (1<<(X86_FEATURE_3DNOW & 31))
-#else
# define NEED_3DNOW 0
-#endif
#if defined(CONFIG_X86_P6_NOP) || defined(CONFIG_X86_64)
# define NEED_NOPL (1<<(X86_FEATURE_NOPL & 31))
@@ -47,8 +43,14 @@
# define NEED_NOPL 0
#endif
+#ifdef CONFIG_MATOM
+# define NEED_MOVBE (1<<(X86_FEATURE_MOVBE & 31))
+#else
+# define NEED_MOVBE 0
+#endif
+
#ifdef CONFIG_X86_64
-#ifdef CONFIG_PARAVIRT
+#ifdef CONFIG_PARAVIRT_XXL
/* Paravirtualized systems may not have PSE or PGE available */
#define NEED_PSE 0
#define NEED_PGE 0
@@ -80,11 +82,23 @@
#define REQUIRED_MASK2 0
#define REQUIRED_MASK3 (NEED_NOPL)
-#define REQUIRED_MASK4 0
+#define REQUIRED_MASK4 (NEED_MOVBE)
#define REQUIRED_MASK5 0
#define REQUIRED_MASK6 0
#define REQUIRED_MASK7 0
#define REQUIRED_MASK8 0
#define REQUIRED_MASK9 0
+#define REQUIRED_MASK10 0
+#define REQUIRED_MASK11 0
+#define REQUIRED_MASK12 0
+#define REQUIRED_MASK13 0
+#define REQUIRED_MASK14 0
+#define REQUIRED_MASK15 0
+#define REQUIRED_MASK16 0
+#define REQUIRED_MASK17 0
+#define REQUIRED_MASK18 0
+#define REQUIRED_MASK19 0
+#define REQUIRED_MASK20 0
+#define REQUIRED_MASK_CHECK BUILD_BUG_ON_ZERO(NCAPINTS != 21)
#endif /* _ASM_X86_REQUIRED_FEATURES_H */
diff --git a/arch/x86/include/asm/resctrl.h b/arch/x86/include/asm/resctrl.h
new file mode 100644
index 000000000000..255a78d9d906
--- /dev/null
+++ b/arch/x86/include/asm/resctrl.h
@@ -0,0 +1,106 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_RESCTRL_H
+#define _ASM_X86_RESCTRL_H
+
+#ifdef CONFIG_X86_CPU_RESCTRL
+
+#include <linux/sched.h>
+#include <linux/jump_label.h>
+
+/**
+ * struct resctrl_pqr_state - State cache for the PQR MSR
+ * @cur_rmid: The cached Resource Monitoring ID
+ * @cur_closid: The cached Class Of Service ID
+ * @default_rmid: The user assigned Resource Monitoring ID
+ * @default_closid: The user assigned cached Class Of Service ID
+ *
+ * The upper 32 bits of MSR_IA32_PQR_ASSOC contain closid and the
+ * lower 10 bits rmid. The update to MSR_IA32_PQR_ASSOC always
+ * contains both parts, so we need to cache them. This also
+ * stores the user configured per cpu CLOSID and RMID.
+ *
+ * The cache also helps to avoid pointless updates if the value does
+ * not change.
+ */
+struct resctrl_pqr_state {
+ u32 cur_rmid;
+ u32 cur_closid;
+ u32 default_rmid;
+ u32 default_closid;
+};
+
+DECLARE_PER_CPU(struct resctrl_pqr_state, pqr_state);
+
+DECLARE_STATIC_KEY_FALSE(rdt_enable_key);
+DECLARE_STATIC_KEY_FALSE(rdt_alloc_enable_key);
+DECLARE_STATIC_KEY_FALSE(rdt_mon_enable_key);
+
+/*
+ * __resctrl_sched_in() - Writes the task's CLOSid/RMID to IA32_PQR_MSR
+ *
+ * Following considerations are made so that this has minimal impact
+ * on scheduler hot path:
+ * - This will stay as no-op unless we are running on an Intel SKU
+ * which supports resource control or monitoring and we enable by
+ * mounting the resctrl file system.
+ * - Caches the per cpu CLOSid/RMID values and does the MSR write only
+ * when a task with a different CLOSid/RMID is scheduled in.
+ * - We allocate RMIDs/CLOSids globally in order to keep this as
+ * simple as possible.
+ * Must be called with preemption disabled.
+ */
+static inline void __resctrl_sched_in(struct task_struct *tsk)
+{
+ struct resctrl_pqr_state *state = this_cpu_ptr(&pqr_state);
+ u32 closid = state->default_closid;
+ u32 rmid = state->default_rmid;
+ u32 tmp;
+
+ /*
+ * If this task has a closid/rmid assigned, use it.
+ * Else use the closid/rmid assigned to this cpu.
+ */
+ if (static_branch_likely(&rdt_alloc_enable_key)) {
+ tmp = READ_ONCE(tsk->closid);
+ if (tmp)
+ closid = tmp;
+ }
+
+ if (static_branch_likely(&rdt_mon_enable_key)) {
+ tmp = READ_ONCE(tsk->rmid);
+ if (tmp)
+ rmid = tmp;
+ }
+
+ if (closid != state->cur_closid || rmid != state->cur_rmid) {
+ state->cur_closid = closid;
+ state->cur_rmid = rmid;
+ wrmsr(MSR_IA32_PQR_ASSOC, rmid, closid);
+ }
+}
+
+static inline unsigned int resctrl_arch_round_mon_val(unsigned int val)
+{
+ unsigned int scale = boot_cpu_data.x86_cache_occ_scale;
+
+ /* h/w works in units of "boot_cpu_data.x86_cache_occ_scale" */
+ val /= scale;
+ return val * scale;
+}
+
+static inline void resctrl_sched_in(struct task_struct *tsk)
+{
+ if (static_branch_likely(&rdt_enable_key))
+ __resctrl_sched_in(tsk);
+}
+
+void resctrl_cpu_detect(struct cpuinfo_x86 *c);
+
+#else
+
+static inline void resctrl_sched_in(struct task_struct *tsk) {}
+static inline void resctrl_cpu_detect(struct cpuinfo_x86 *c) {}
+
+#endif /* CONFIG_X86_CPU_RESCTRL */
+
+#endif /* _ASM_X86_RESCTRL_H */
diff --git a/arch/x86/include/asm/resource.h b/arch/x86/include/asm/resource.h
deleted file mode 100644
index 04bc4db8921b..000000000000
--- a/arch/x86/include/asm/resource.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/resource.h>
diff --git a/arch/x86/include/asm/rio.h b/arch/x86/include/asm/rio.h
deleted file mode 100644
index 97bab6388a92..000000000000
--- a/arch/x86/include/asm/rio.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Derived from include/asm-x86/mach-summit/mach_mpparse.h
- * and include/asm-x86/mach-default/bios_ebda.h
- *
- * Author: Laurent Vivier <Laurent.Vivier@bull.net>
- */
-
-#ifndef _ASM_X86_RIO_H
-#define _ASM_X86_RIO_H
-
-#define RIO_TABLE_VERSION 3
-
-struct rio_table_hdr {
- u8 version; /* Version number of this data structure */
- u8 num_scal_dev; /* # of Scalability devices */
- u8 num_rio_dev; /* # of RIO I/O devices */
-} __attribute__((packed));
-
-struct scal_detail {
- u8 node_id; /* Scalability Node ID */
- u32 CBAR; /* Address of 1MB register space */
- u8 port0node; /* Node ID port connected to: 0xFF=None */
- u8 port0port; /* Port num port connected to: 0,1,2, or */
- /* 0xFF=None */
- u8 port1node; /* Node ID port connected to: 0xFF = None */
- u8 port1port; /* Port num port connected to: 0,1,2, or */
- /* 0xFF=None */
- u8 port2node; /* Node ID port connected to: 0xFF = None */
- u8 port2port; /* Port num port connected to: 0,1,2, or */
- /* 0xFF=None */
- u8 chassis_num; /* 1 based Chassis number (1 = boot node) */
-} __attribute__((packed));
-
-struct rio_detail {
- u8 node_id; /* RIO Node ID */
- u32 BBAR; /* Address of 1MB register space */
- u8 type; /* Type of device */
- u8 owner_id; /* Node ID of Hurricane that owns this */
- /* node */
- u8 port0node; /* Node ID port connected to: 0xFF=None */
- u8 port0port; /* Port num port connected to: 0,1,2, or */
- /* 0xFF=None */
- u8 port1node; /* Node ID port connected to: 0xFF=None */
- u8 port1port; /* Port num port connected to: 0,1,2, or */
- /* 0xFF=None */
- u8 first_slot; /* Lowest slot number below this Calgary */
- u8 status; /* Bit 0 = 1 : the XAPIC is used */
- /* = 0 : the XAPIC is not used, ie: */
- /* ints fwded to another XAPIC */
- /* Bits1:7 Reserved */
- u8 WP_index; /* instance index - lower ones have */
- /* lower slot numbers/PCI bus numbers */
- u8 chassis_num; /* 1 based Chassis number */
-} __attribute__((packed));
-
-enum {
- HURR_SCALABILTY = 0, /* Hurricane Scalability info */
- HURR_RIOIB = 2, /* Hurricane RIOIB info */
- COMPAT_CALGARY = 4, /* Compatibility Calgary */
- ALT_CALGARY = 5, /* Second Planar Calgary */
-};
-
-#endif /* _ASM_X86_RIO_H */
diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
new file mode 100644
index 000000000000..7fa611216417
--- /dev/null
+++ b/arch/x86/include/asm/rmwcc.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_RMWcc
+#define _ASM_X86_RMWcc
+
+/* This counts to 12. Any more, it will return 13th argument. */
+#define __RMWcc_ARGS(_0, _1, _2, _3, _4, _5, _6, _7, _8, _9, _10, _11, _12, _n, X...) _n
+#define RMWcc_ARGS(X...) __RMWcc_ARGS(, ##X, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0)
+
+#define __RMWcc_CONCAT(a, b) a ## b
+#define RMWcc_CONCAT(a, b) __RMWcc_CONCAT(a, b)
+
+#define __CLOBBERS_MEM(clb...) "memory", ## clb
+
+#ifndef __GCC_ASM_FLAG_OUTPUTS__
+
+/* Use asm goto */
+
+#define __GEN_RMWcc(fullop, _var, cc, clobbers, ...) \
+({ \
+ bool c = false; \
+ asm_volatile_goto (fullop "; j" #cc " %l[cc_label]" \
+ : : [var] "m" (_var), ## __VA_ARGS__ \
+ : clobbers : cc_label); \
+ if (0) { \
+cc_label: c = true; \
+ } \
+ c; \
+})
+
+#else /* defined(__GCC_ASM_FLAG_OUTPUTS__) */
+
+/* Use flags output or a set instruction */
+
+#define __GEN_RMWcc(fullop, _var, cc, clobbers, ...) \
+({ \
+ bool c; \
+ asm volatile (fullop CC_SET(cc) \
+ : [var] "+m" (_var), CC_OUT(cc) (c) \
+ : __VA_ARGS__ : clobbers); \
+ c; \
+})
+
+#endif /* defined(__GCC_ASM_FLAG_OUTPUTS__) */
+
+#define GEN_UNARY_RMWcc_4(op, var, cc, arg0) \
+ __GEN_RMWcc(op " " arg0, var, cc, __CLOBBERS_MEM())
+
+#define GEN_UNARY_RMWcc_3(op, var, cc) \
+ GEN_UNARY_RMWcc_4(op, var, cc, "%[var]")
+
+#define GEN_UNARY_RMWcc(X...) RMWcc_CONCAT(GEN_UNARY_RMWcc_, RMWcc_ARGS(X))(X)
+
+#define GEN_BINARY_RMWcc_6(op, var, cc, vcon, _val, arg0) \
+ __GEN_RMWcc(op " %[val], " arg0, var, cc, \
+ __CLOBBERS_MEM(), [val] vcon (_val))
+
+#define GEN_BINARY_RMWcc_5(op, var, cc, vcon, val) \
+ GEN_BINARY_RMWcc_6(op, var, cc, vcon, val, "%[var]")
+
+#define GEN_BINARY_RMWcc(X...) RMWcc_CONCAT(GEN_BINARY_RMWcc_, RMWcc_ARGS(X))(X)
+
+#define GEN_UNARY_SUFFIXED_RMWcc(op, suffix, var, cc, clobbers...) \
+ __GEN_RMWcc(op " %[var]\n\t" suffix, var, cc, \
+ __CLOBBERS_MEM(clobbers))
+
+#define GEN_BINARY_SUFFIXED_RMWcc(op, suffix, var, cc, vcon, _val, clobbers...)\
+ __GEN_RMWcc(op " %[val], %[var]\n\t" suffix, var, cc, \
+ __CLOBBERS_MEM(clobbers), [val] vcon (_val))
+
+#endif /* _ASM_X86_RMWcc */
diff --git a/arch/x86/include/asm/rtc.h b/arch/x86/include/asm/rtc.h
deleted file mode 100644
index f71c3b0ed360..000000000000
--- a/arch/x86/include/asm/rtc.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/rtc.h>
diff --git a/arch/x86/include/asm/rwlock.h b/arch/x86/include/asm/rwlock.h
deleted file mode 100644
index 6a8c0d645108..000000000000
--- a/arch/x86/include/asm/rwlock.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _ASM_X86_RWLOCK_H
-#define _ASM_X86_RWLOCK_H
-
-#define RW_LOCK_BIAS 0x01000000
-
-/* Actual code is in asm/spinlock.h or in arch/x86/lib/rwlock.S */
-
-#endif /* _ASM_X86_RWLOCK_H */
diff --git a/arch/x86/include/asm/rwsem.h b/arch/x86/include/asm/rwsem.h
deleted file mode 100644
index df4cd32b4cc6..000000000000
--- a/arch/x86/include/asm/rwsem.h
+++ /dev/null
@@ -1,217 +0,0 @@
-/* rwsem.h: R/W semaphores implemented using XADD/CMPXCHG for i486+
- *
- * Written by David Howells (dhowells@redhat.com).
- *
- * Derived from asm-x86/semaphore.h
- *
- *
- * The MSW of the count is the negated number of active writers and waiting
- * lockers, and the LSW is the total number of active locks
- *
- * The lock count is initialized to 0 (no active and no waiting lockers).
- *
- * When a writer subtracts WRITE_BIAS, it'll get 0xffff0001 for the case of an
- * uncontended lock. This can be determined because XADD returns the old value.
- * Readers increment by 1 and see a positive value when uncontended, negative
- * if there are writers (and maybe) readers waiting (in which case it goes to
- * sleep).
- *
- * The value of WAITING_BIAS supports up to 32766 waiting processes. This can
- * be extended to 65534 by manually checking the whole MSW rather than relying
- * on the S flag.
- *
- * The value of ACTIVE_BIAS supports up to 65535 active processes.
- *
- * This should be totally fair - if anything is waiting, a process that wants a
- * lock will go to the back of the queue. When the currently active lock is
- * released, if there's a writer at the front of the queue, then that and only
- * that will be woken up; if there's a bunch of consequtive readers at the
- * front, then they'll all be woken up, but no other readers will be.
- */
-
-#ifndef _ASM_X86_RWSEM_H
-#define _ASM_X86_RWSEM_H
-
-#ifndef _LINUX_RWSEM_H
-#error "please don't include asm/rwsem.h directly, use linux/rwsem.h instead"
-#endif
-
-#ifdef __KERNEL__
-#include <asm/asm.h>
-
-/*
- * The bias values and the counter type limits the number of
- * potential readers/writers to 32767 for 32 bits and 2147483647
- * for 64 bits.
- */
-
-#ifdef CONFIG_X86_64
-# define RWSEM_ACTIVE_MASK 0xffffffffL
-#else
-# define RWSEM_ACTIVE_MASK 0x0000ffffL
-#endif
-
-#define RWSEM_UNLOCKED_VALUE 0x00000000L
-#define RWSEM_ACTIVE_BIAS 0x00000001L
-#define RWSEM_WAITING_BIAS (-RWSEM_ACTIVE_MASK-1)
-#define RWSEM_ACTIVE_READ_BIAS RWSEM_ACTIVE_BIAS
-#define RWSEM_ACTIVE_WRITE_BIAS (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
-
-/*
- * lock for reading
- */
-static inline void __down_read(struct rw_semaphore *sem)
-{
- asm volatile("# beginning down_read\n\t"
- LOCK_PREFIX _ASM_INC "(%1)\n\t"
- /* adds 0x00000001 */
- " jns 1f\n"
- " call call_rwsem_down_read_failed\n"
- "1:\n\t"
- "# ending down_read\n\t"
- : "+m" (sem->count)
- : "a" (sem)
- : "memory", "cc");
-}
-
-/*
- * trylock for reading -- returns 1 if successful, 0 if contention
- */
-static inline int __down_read_trylock(struct rw_semaphore *sem)
-{
- long result, tmp;
- asm volatile("# beginning __down_read_trylock\n\t"
- " mov %0,%1\n\t"
- "1:\n\t"
- " mov %1,%2\n\t"
- " add %3,%2\n\t"
- " jle 2f\n\t"
- LOCK_PREFIX " cmpxchg %2,%0\n\t"
- " jnz 1b\n\t"
- "2:\n\t"
- "# ending __down_read_trylock\n\t"
- : "+m" (sem->count), "=&a" (result), "=&r" (tmp)
- : "i" (RWSEM_ACTIVE_READ_BIAS)
- : "memory", "cc");
- return result >= 0 ? 1 : 0;
-}
-
-/*
- * lock for writing
- */
-static inline void __down_write_nested(struct rw_semaphore *sem, int subclass)
-{
- long tmp;
- asm volatile("# beginning down_write\n\t"
- LOCK_PREFIX " xadd %1,(%2)\n\t"
- /* adds 0xffff0001, returns the old value */
- " test %1,%1\n\t"
- /* was the count 0 before? */
- " jz 1f\n"
- " call call_rwsem_down_write_failed\n"
- "1:\n"
- "# ending down_write"
- : "+m" (sem->count), "=d" (tmp)
- : "a" (sem), "1" (RWSEM_ACTIVE_WRITE_BIAS)
- : "memory", "cc");
-}
-
-static inline void __down_write(struct rw_semaphore *sem)
-{
- __down_write_nested(sem, 0);
-}
-
-/*
- * trylock for writing -- returns 1 if successful, 0 if contention
- */
-static inline int __down_write_trylock(struct rw_semaphore *sem)
-{
- long ret = cmpxchg(&sem->count, RWSEM_UNLOCKED_VALUE,
- RWSEM_ACTIVE_WRITE_BIAS);
- if (ret == RWSEM_UNLOCKED_VALUE)
- return 1;
- return 0;
-}
-
-/*
- * unlock after reading
- */
-static inline void __up_read(struct rw_semaphore *sem)
-{
- long tmp;
- asm volatile("# beginning __up_read\n\t"
- LOCK_PREFIX " xadd %1,(%2)\n\t"
- /* subtracts 1, returns the old value */
- " jns 1f\n\t"
- " call call_rwsem_wake\n" /* expects old value in %edx */
- "1:\n"
- "# ending __up_read\n"
- : "+m" (sem->count), "=d" (tmp)
- : "a" (sem), "1" (-RWSEM_ACTIVE_READ_BIAS)
- : "memory", "cc");
-}
-
-/*
- * unlock after writing
- */
-static inline void __up_write(struct rw_semaphore *sem)
-{
- long tmp;
- asm volatile("# beginning __up_write\n\t"
- LOCK_PREFIX " xadd %1,(%2)\n\t"
- /* subtracts 0xffff0001, returns the old value */
- " jns 1f\n\t"
- " call call_rwsem_wake\n" /* expects old value in %edx */
- "1:\n\t"
- "# ending __up_write\n"
- : "+m" (sem->count), "=d" (tmp)
- : "a" (sem), "1" (-RWSEM_ACTIVE_WRITE_BIAS)
- : "memory", "cc");
-}
-
-/*
- * downgrade write lock to read lock
- */
-static inline void __downgrade_write(struct rw_semaphore *sem)
-{
- asm volatile("# beginning __downgrade_write\n\t"
- LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t"
- /*
- * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386)
- * 0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64)
- */
- " jns 1f\n\t"
- " call call_rwsem_downgrade_wake\n"
- "1:\n\t"
- "# ending __downgrade_write\n"
- : "+m" (sem->count)
- : "a" (sem), "er" (-RWSEM_WAITING_BIAS)
- : "memory", "cc");
-}
-
-/*
- * implement atomic add functionality
- */
-static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem)
-{
- asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0"
- : "+m" (sem->count)
- : "er" (delta));
-}
-
-/*
- * implement exchange and add functionality
- */
-static inline long rwsem_atomic_update(long delta, struct rw_semaphore *sem)
-{
- long tmp = delta;
-
- asm volatile(LOCK_PREFIX "xadd %0,%1"
- : "+r" (tmp), "+m" (sem->count)
- : : "memory");
-
- return tmp + delta;
-}
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_X86_RWSEM_H */
diff --git a/arch/x86/include/asm/scatterlist.h b/arch/x86/include/asm/scatterlist.h
deleted file mode 100644
index 4240878b9d76..000000000000
--- a/arch/x86/include/asm/scatterlist.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _ASM_X86_SCATTERLIST_H
-#define _ASM_X86_SCATTERLIST_H
-
-#include <asm-generic/scatterlist.h>
-
-#define ARCH_HAS_SG_CHAIN
-
-#endif /* _ASM_X86_SCATTERLIST_H */
diff --git a/arch/x86/include/asm/seccomp.h b/arch/x86/include/asm/seccomp.h
index c62e58a5a90d..fef16e398161 100644
--- a/arch/x86/include/asm/seccomp.h
+++ b/arch/x86/include/asm/seccomp.h
@@ -1,5 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SECCOMP_H
+#define _ASM_X86_SECCOMP_H
+
+#include <asm/unistd.h>
+
#ifdef CONFIG_X86_32
-# include "seccomp_32.h"
-#else
-# include "seccomp_64.h"
+#define __NR_seccomp_sigreturn __NR_sigreturn
#endif
+
+#ifdef CONFIG_COMPAT
+#include <asm/ia32_unistd.h>
+#define __NR_seccomp_read_32 __NR_ia32_read
+#define __NR_seccomp_write_32 __NR_ia32_write
+#define __NR_seccomp_exit_32 __NR_ia32_exit
+#define __NR_seccomp_sigreturn_32 __NR_ia32_sigreturn
+#endif
+
+#ifdef CONFIG_X86_64
+# define SECCOMP_ARCH_NATIVE AUDIT_ARCH_X86_64
+# define SECCOMP_ARCH_NATIVE_NR NR_syscalls
+# define SECCOMP_ARCH_NATIVE_NAME "x86_64"
+# ifdef CONFIG_COMPAT
+# define SECCOMP_ARCH_COMPAT AUDIT_ARCH_I386
+# define SECCOMP_ARCH_COMPAT_NR IA32_NR_syscalls
+# define SECCOMP_ARCH_COMPAT_NAME "ia32"
+# endif
+/*
+ * x32 will have __X32_SYSCALL_BIT set in syscall number. We don't support
+ * caching them and they are treated as out of range syscalls, which will
+ * always pass through the BPF filter.
+ */
+#else /* !CONFIG_X86_64 */
+# define SECCOMP_ARCH_NATIVE AUDIT_ARCH_I386
+# define SECCOMP_ARCH_NATIVE_NR NR_syscalls
+# define SECCOMP_ARCH_NATIVE_NAME "ia32"
+#endif
+
+#include <asm-generic/seccomp.h>
+
+#endif /* _ASM_X86_SECCOMP_H */
diff --git a/arch/x86/include/asm/seccomp_32.h b/arch/x86/include/asm/seccomp_32.h
deleted file mode 100644
index b811d6f5780c..000000000000
--- a/arch/x86/include/asm/seccomp_32.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _ASM_X86_SECCOMP_32_H
-#define _ASM_X86_SECCOMP_32_H
-
-#include <linux/unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_sigreturn
-
-#endif /* _ASM_X86_SECCOMP_32_H */
diff --git a/arch/x86/include/asm/seccomp_64.h b/arch/x86/include/asm/seccomp_64.h
deleted file mode 100644
index 84ec1bd161a5..000000000000
--- a/arch/x86/include/asm/seccomp_64.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#ifndef _ASM_X86_SECCOMP_64_H
-#define _ASM_X86_SECCOMP_64_H
-
-#include <linux/unistd.h>
-#include <asm/ia32_unistd.h>
-
-#define __NR_seccomp_read __NR_read
-#define __NR_seccomp_write __NR_write
-#define __NR_seccomp_exit __NR_exit
-#define __NR_seccomp_sigreturn __NR_rt_sigreturn
-
-#define __NR_seccomp_read_32 __NR_ia32_read
-#define __NR_seccomp_write_32 __NR_ia32_write
-#define __NR_seccomp_exit_32 __NR_ia32_exit
-#define __NR_seccomp_sigreturn_32 __NR_ia32_sigreturn
-
-#endif /* _ASM_X86_SECCOMP_64_H */
diff --git a/arch/x86/include/asm/sections.h b/arch/x86/include/asm/sections.h
index 0a5242428659..a6e8373a5170 100644
--- a/arch/x86/include/asm/sections.h
+++ b/arch/x86/include/asm/sections.h
@@ -1,14 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SECTIONS_H
#define _ASM_X86_SECTIONS_H
+#define arch_is_kernel_initmem_freed arch_is_kernel_initmem_freed
+
#include <asm-generic/sections.h>
-#include <asm/uaccess.h>
+#include <asm/extable.h>
extern char __brk_base[], __brk_limit[];
-extern struct exception_table_entry __stop___ex_table[];
+extern char __end_rodata_aligned[];
-#if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA)
+#if defined(CONFIG_X86_64)
extern char __end_rodata_hpage_align[];
#endif
+extern char __end_of_kernel_reserve[];
+
+extern unsigned long _brk_start, _brk_end;
+
+static inline bool arch_is_kernel_initmem_freed(unsigned long addr)
+{
+ /*
+ * If _brk_start has not been cleared, brk allocation is incomplete,
+ * and we can not make assumptions about its use.
+ */
+ if (_brk_start)
+ return 0;
+
+ /*
+ * After brk allocation is complete, space between _brk_end and _end
+ * is available for allocation.
+ */
+ return addr >= _brk_end && addr < (unsigned long)&_end;
+}
+
#endif /* _ASM_X86_SECTIONS_H */
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
index cd84f7208f76..794f69625780 100644
--- a/arch/x86/include/asm/segment.h
+++ b/arch/x86/include/asm/segment.h
@@ -1,10 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SEGMENT_H
#define _ASM_X86_SEGMENT_H
#include <linux/const.h>
+#include <asm/alternative.h>
+#include <asm/ibt.h>
-/* Constructor for a conventional segment GDT (or LDT) entry */
-/* This is a macro so it can be used in initializers */
+/*
+ * Constructor for a conventional segment GDT (or LDT) entry.
+ * This is a macro so it can be used in initializers.
+ */
#define GDT_ENTRY(flags, base, limit) \
((((base) & _AC(0xff000000,ULL)) << (56-24)) | \
(((flags) & _AC(0x0000f0ff,ULL)) << 40) | \
@@ -12,207 +17,340 @@
(((base) & _AC(0x00ffffff,ULL)) << 16) | \
(((limit) & _AC(0x0000ffff,ULL))))
-/* Simple and small GDT entries for booting only */
+/* Simple and small GDT entries for booting only: */
#define GDT_ENTRY_BOOT_CS 2
-#define __BOOT_CS (GDT_ENTRY_BOOT_CS * 8)
+#define GDT_ENTRY_BOOT_DS 3
+#define GDT_ENTRY_BOOT_TSS 4
+#define __BOOT_CS (GDT_ENTRY_BOOT_CS*8)
+#define __BOOT_DS (GDT_ENTRY_BOOT_DS*8)
+#define __BOOT_TSS (GDT_ENTRY_BOOT_TSS*8)
+
+/*
+ * Bottom two bits of selector give the ring
+ * privilege level
+ */
+#define SEGMENT_RPL_MASK 0x3
+
+/*
+ * When running on Xen PV, the actual privilege level of the kernel is 1,
+ * not 0. Testing the Requested Privilege Level in a segment selector to
+ * determine whether the context is user mode or kernel mode with
+ * SEGMENT_RPL_MASK is wrong because the PV kernel's privilege level
+ * matches the 0x3 mask.
+ *
+ * Testing with USER_SEGMENT_RPL_MASK is valid for both native and Xen PV
+ * kernels because privilege level 2 is never used.
+ */
+#define USER_SEGMENT_RPL_MASK 0x2
-#define GDT_ENTRY_BOOT_DS (GDT_ENTRY_BOOT_CS + 1)
-#define __BOOT_DS (GDT_ENTRY_BOOT_DS * 8)
+/* User mode is privilege level 3: */
+#define USER_RPL 0x3
+
+/* Bit 2 is Table Indicator (TI): selects between LDT or GDT */
+#define SEGMENT_TI_MASK 0x4
+/* LDT segment has TI set ... */
+#define SEGMENT_LDT 0x4
+/* ... GDT has it cleared */
+#define SEGMENT_GDT 0x0
-#define GDT_ENTRY_BOOT_TSS (GDT_ENTRY_BOOT_CS + 2)
-#define __BOOT_TSS (GDT_ENTRY_BOOT_TSS * 8)
+#define GDT_ENTRY_INVALID_SEG 0
#ifdef CONFIG_X86_32
/*
* The layout of the per-CPU GDT under Linux:
*
- * 0 - null
+ * 0 - null <=== cacheline #1
* 1 - reserved
* 2 - reserved
* 3 - reserved
*
- * 4 - unused <==== new cacheline
+ * 4 - unused <=== cacheline #2
* 5 - unused
*
* ------- start of TLS (Thread-Local Storage) segments:
*
* 6 - TLS segment #1 [ glibc's TLS segment ]
* 7 - TLS segment #2 [ Wine's %fs Win32 segment ]
- * 8 - TLS segment #3
+ * 8 - TLS segment #3 <=== cacheline #3
* 9 - reserved
* 10 - reserved
* 11 - reserved
*
* ------- start of kernel segments:
*
- * 12 - kernel code segment <==== new cacheline
+ * 12 - kernel code segment <=== cacheline #4
* 13 - kernel data segment
* 14 - default user CS
* 15 - default user DS
- * 16 - TSS
+ * 16 - TSS <=== cacheline #5
* 17 - LDT
* 18 - PNPBIOS support (16->32 gate)
* 19 - PNPBIOS support
- * 20 - PNPBIOS support
+ * 20 - PNPBIOS support <=== cacheline #6
* 21 - PNPBIOS support
* 22 - PNPBIOS support
* 23 - APM BIOS support
- * 24 - APM BIOS support
+ * 24 - APM BIOS support <=== cacheline #7
* 25 - APM BIOS support
*
* 26 - ESPFIX small SS
* 27 - per-cpu [ offset to per-cpu data area ]
- * 28 - stack_canary-20 [ for stack protector ]
+ * 28 - VDSO getcpu
* 29 - unused
* 30 - unused
* 31 - TSS for double fault handler
*/
-#define GDT_ENTRY_TLS_MIN 6
-#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
+#define GDT_ENTRY_TLS_MIN 6
+#define GDT_ENTRY_TLS_MAX (GDT_ENTRY_TLS_MIN + GDT_ENTRY_TLS_ENTRIES - 1)
+#define GDT_ENTRY_KERNEL_CS 12
+#define GDT_ENTRY_KERNEL_DS 13
#define GDT_ENTRY_DEFAULT_USER_CS 14
-
#define GDT_ENTRY_DEFAULT_USER_DS 15
+#define GDT_ENTRY_TSS 16
+#define GDT_ENTRY_LDT 17
+#define GDT_ENTRY_PNPBIOS_CS32 18
+#define GDT_ENTRY_PNPBIOS_CS16 19
+#define GDT_ENTRY_PNPBIOS_DS 20
+#define GDT_ENTRY_PNPBIOS_TS1 21
+#define GDT_ENTRY_PNPBIOS_TS2 22
+#define GDT_ENTRY_APMBIOS_BASE 23
+
+#define GDT_ENTRY_ESPFIX_SS 26
+#define GDT_ENTRY_PERCPU 27
+#define GDT_ENTRY_CPUNODE 28
+
+#define GDT_ENTRY_DOUBLEFAULT_TSS 31
-#define GDT_ENTRY_KERNEL_BASE (12)
+/*
+ * Number of entries in the GDT table:
+ */
+#define GDT_ENTRIES 32
-#define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE+0)
+/*
+ * Segment selector values corresponding to the above entries:
+ */
-#define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE+1)
+#define __KERNEL_CS (GDT_ENTRY_KERNEL_CS*8)
+#define __KERNEL_DS (GDT_ENTRY_KERNEL_DS*8)
+#define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8 + 3)
+#define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8 + 3)
+#define __USER32_CS __USER_CS
+#define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS*8)
-#define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE+4)
-#define GDT_ENTRY_LDT (GDT_ENTRY_KERNEL_BASE+5)
+/* segment for calling fn: */
+#define PNP_CS32 (GDT_ENTRY_PNPBIOS_CS32*8)
+/* code segment for BIOS: */
+#define PNP_CS16 (GDT_ENTRY_PNPBIOS_CS16*8)
-#define GDT_ENTRY_PNPBIOS_BASE (GDT_ENTRY_KERNEL_BASE+6)
-#define GDT_ENTRY_APMBIOS_BASE (GDT_ENTRY_KERNEL_BASE+11)
+/* "Is this PNP code selector (PNP_CS32 or PNP_CS16)?" */
+#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == PNP_CS32)
-#define GDT_ENTRY_ESPFIX_SS (GDT_ENTRY_KERNEL_BASE+14)
-#define __ESPFIX_SS (GDT_ENTRY_ESPFIX_SS*8)
+/* data segment for BIOS: */
+#define PNP_DS (GDT_ENTRY_PNPBIOS_DS*8)
+/* transfer data segment: */
+#define PNP_TS1 (GDT_ENTRY_PNPBIOS_TS1*8)
+/* another data segment: */
+#define PNP_TS2 (GDT_ENTRY_PNPBIOS_TS2*8)
-#define GDT_ENTRY_PERCPU (GDT_ENTRY_KERNEL_BASE+15)
#ifdef CONFIG_SMP
-#define __KERNEL_PERCPU (GDT_ENTRY_PERCPU * 8)
+# define __KERNEL_PERCPU (GDT_ENTRY_PERCPU*8)
#else
-#define __KERNEL_PERCPU 0
+# define __KERNEL_PERCPU 0
#endif
-#define GDT_ENTRY_STACK_CANARY (GDT_ENTRY_KERNEL_BASE+16)
-#ifdef CONFIG_CC_STACKPROTECTOR
-#define __KERNEL_STACK_CANARY (GDT_ENTRY_STACK_CANARY*8)
-#else
-#define __KERNEL_STACK_CANARY 0
-#endif
+#define __CPUNODE_SEG (GDT_ENTRY_CPUNODE*8 + 3)
-#define GDT_ENTRY_DOUBLEFAULT_TSS 31
+#else /* 64-bit: */
+
+#include <asm/cache.h>
+
+#define GDT_ENTRY_KERNEL32_CS 1
+#define GDT_ENTRY_KERNEL_CS 2
+#define GDT_ENTRY_KERNEL_DS 3
/*
- * The GDT has 32 entries
+ * We cannot use the same code segment descriptor for user and kernel mode,
+ * not even in long flat mode, because of different DPL.
+ *
+ * GDT layout to get 64-bit SYSCALL/SYSRET support right. SYSRET hardcodes
+ * selectors:
+ *
+ * if returning to 32-bit userspace: cs = STAR.SYSRET_CS,
+ * if returning to 64-bit userspace: cs = STAR.SYSRET_CS+16,
+ *
+ * ss = STAR.SYSRET_CS+8 (in either case)
+ *
+ * thus USER_DS should be between 32-bit and 64-bit code selectors:
*/
-#define GDT_ENTRIES 32
-
-/* The PnP BIOS entries in the GDT */
-#define GDT_ENTRY_PNPBIOS_CS32 (GDT_ENTRY_PNPBIOS_BASE + 0)
-#define GDT_ENTRY_PNPBIOS_CS16 (GDT_ENTRY_PNPBIOS_BASE + 1)
-#define GDT_ENTRY_PNPBIOS_DS (GDT_ENTRY_PNPBIOS_BASE + 2)
-#define GDT_ENTRY_PNPBIOS_TS1 (GDT_ENTRY_PNPBIOS_BASE + 3)
-#define GDT_ENTRY_PNPBIOS_TS2 (GDT_ENTRY_PNPBIOS_BASE + 4)
-
-/* The PnP BIOS selectors */
-#define PNP_CS32 (GDT_ENTRY_PNPBIOS_CS32 * 8) /* segment for calling fn */
-#define PNP_CS16 (GDT_ENTRY_PNPBIOS_CS16 * 8) /* code segment for BIOS */
-#define PNP_DS (GDT_ENTRY_PNPBIOS_DS * 8) /* data segment for BIOS */
-#define PNP_TS1 (GDT_ENTRY_PNPBIOS_TS1 * 8) /* transfer data segment */
-#define PNP_TS2 (GDT_ENTRY_PNPBIOS_TS2 * 8) /* another data segment */
-
-/* Bottom two bits of selector give the ring privilege level */
-#define SEGMENT_RPL_MASK 0x3
-/* Bit 2 is table indicator (LDT/GDT) */
-#define SEGMENT_TI_MASK 0x4
+#define GDT_ENTRY_DEFAULT_USER32_CS 4
+#define GDT_ENTRY_DEFAULT_USER_DS 5
+#define GDT_ENTRY_DEFAULT_USER_CS 6
-/* User mode is privilege level 3 */
-#define USER_RPL 0x3
-/* LDT segment has TI set, GDT has it cleared */
-#define SEGMENT_LDT 0x4
-#define SEGMENT_GDT 0x0
+/* Needs two entries */
+#define GDT_ENTRY_TSS 8
+/* Needs two entries */
+#define GDT_ENTRY_LDT 10
+
+#define GDT_ENTRY_TLS_MIN 12
+#define GDT_ENTRY_TLS_MAX 14
+
+#define GDT_ENTRY_CPUNODE 15
/*
- * Matching rules for certain types of segments.
+ * Number of entries in the GDT table:
+ */
+#define GDT_ENTRIES 16
+
+/*
+ * Segment selector values corresponding to the above entries:
+ *
+ * Note, selectors also need to have a correct RPL,
+ * expressed with the +3 value for user-space selectors:
*/
+#define __KERNEL32_CS (GDT_ENTRY_KERNEL32_CS*8)
+#define __KERNEL_CS (GDT_ENTRY_KERNEL_CS*8)
+#define __KERNEL_DS (GDT_ENTRY_KERNEL_DS*8)
+#define __USER32_CS (GDT_ENTRY_DEFAULT_USER32_CS*8 + 3)
+#define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8 + 3)
+#define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8 + 3)
+#define __CPUNODE_SEG (GDT_ENTRY_CPUNODE*8 + 3)
-/* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */
-#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8)
+#endif
+#define IDT_ENTRIES 256
+#define NUM_EXCEPTION_VECTORS 32
-#else
-#include <asm/cache.h>
+/* Bitmask of exception vectors which push an error code on the stack: */
+#define EXCEPTION_ERRCODE_MASK 0x20027d00
+
+#define GDT_SIZE (GDT_ENTRIES*8)
+#define GDT_ENTRY_TLS_ENTRIES 3
+#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES* 8)
+
+/* Bit size and mask of CPU number stored in the per CPU data (and TSC_AUX) */
+#define VDSO_CPUNODE_BITS 12
+#define VDSO_CPUNODE_MASK 0xfff
-#define GDT_ENTRY_KERNEL32_CS 1
-#define GDT_ENTRY_KERNEL_CS 2
-#define GDT_ENTRY_KERNEL_DS 3
+#ifndef __ASSEMBLY__
+
+/* Helper functions to store/load CPU and node numbers */
+
+static inline unsigned long vdso_encode_cpunode(int cpu, unsigned long node)
+{
+ return (node << VDSO_CPUNODE_BITS) | cpu;
+}
+
+static inline void vdso_read_cpunode(unsigned *cpu, unsigned *node)
+{
+ unsigned int p;
+
+ /*
+ * Load CPU and node number from the GDT. LSL is faster than RDTSCP
+ * and works on all CPUs. This is volatile so that it orders
+ * correctly with respect to barrier() and to keep GCC from cleverly
+ * hoisting it out of the calling function.
+ *
+ * If RDPID is available, use it.
+ */
+ alternative_io ("lsl %[seg],%[p]",
+ ".byte 0xf3,0x0f,0xc7,0xf8", /* RDPID %eax/rax */
+ X86_FEATURE_RDPID,
+ [p] "=a" (p), [seg] "r" (__CPUNODE_SEG));
+
+ if (cpu)
+ *cpu = (p & VDSO_CPUNODE_MASK);
+ if (node)
+ *node = (p >> VDSO_CPUNODE_BITS);
+}
+
+#endif /* !__ASSEMBLY__ */
-#define __KERNEL32_CS (GDT_ENTRY_KERNEL32_CS * 8)
+#ifdef __KERNEL__
/*
- * we cannot use the same code segment descriptor for user and kernel
- * -- not even in the long flat mode, because of different DPL /kkeil
- * The segment offset needs to contain a RPL. Grr. -AK
- * GDT layout to get 64bit syscall right (sysret hardcodes gdt offsets)
+ * early_idt_handler_array is an array of entry points referenced in the
+ * early IDT. For simplicity, it's a real array with one entry point
+ * every nine bytes. That leaves room for an optional 'push $0' if the
+ * vector has no error code (two bytes), a 'push $vector_number' (two
+ * bytes), and a jump to the common entry code (up to five bytes).
*/
-#define GDT_ENTRY_DEFAULT_USER32_CS 4
-#define GDT_ENTRY_DEFAULT_USER_DS 5
-#define GDT_ENTRY_DEFAULT_USER_CS 6
-#define __USER32_CS (GDT_ENTRY_DEFAULT_USER32_CS * 8 + 3)
-#define __USER32_DS __USER_DS
+#define EARLY_IDT_HANDLER_SIZE (9 + ENDBR_INSN_SIZE)
-#define GDT_ENTRY_TSS 8 /* needs two entries */
-#define GDT_ENTRY_LDT 10 /* needs two entries */
-#define GDT_ENTRY_TLS_MIN 12
-#define GDT_ENTRY_TLS_MAX 14
+/*
+ * xen_early_idt_handler_array is for Xen pv guests: for each entry in
+ * early_idt_handler_array it contains a prequel in the form of
+ * pop %rcx; pop %r11; jmp early_idt_handler_array[i]; summing up to
+ * max 8 bytes.
+ */
+#define XEN_EARLY_IDT_HANDLER_SIZE (8 + ENDBR_INSN_SIZE)
-#define GDT_ENTRY_PER_CPU 15 /* Abused to load per CPU data from limit */
-#define __PER_CPU_SEG (GDT_ENTRY_PER_CPU * 8 + 3)
+#ifndef __ASSEMBLY__
-/* TLS indexes for 64bit - hardcoded in arch_prctl */
-#define FS_TLS 0
-#define GS_TLS 1
+extern const char early_idt_handler_array[NUM_EXCEPTION_VECTORS][EARLY_IDT_HANDLER_SIZE];
+extern void early_ignore_irq(void);
-#define GS_TLS_SEL ((GDT_ENTRY_TLS_MIN+GS_TLS)*8 + 3)
-#define FS_TLS_SEL ((GDT_ENTRY_TLS_MIN+FS_TLS)*8 + 3)
+#ifdef CONFIG_XEN_PV
+extern const char xen_early_idt_handler_array[NUM_EXCEPTION_VECTORS][XEN_EARLY_IDT_HANDLER_SIZE];
+#endif
-#define GDT_ENTRIES 16
+/*
+ * Load a segment. Fall back on loading the zero segment if something goes
+ * wrong. This variant assumes that loading zero fully clears the segment.
+ * This is always the case on Intel CPUs and, even on 64-bit AMD CPUs, any
+ * failure to fully clear the cached descriptor is only observable for
+ * FS and GS.
+ */
+#define __loadsegment_simple(seg, value) \
+do { \
+ unsigned short __val = (value); \
+ \
+ asm volatile(" \n" \
+ "1: movl %k0,%%" #seg " \n" \
+ _ASM_EXTABLE_TYPE_REG(1b, 1b, EX_TYPE_ZERO_REG, %k0)\
+ : "+r" (__val) : : "memory"); \
+} while (0)
+
+#define __loadsegment_ss(value) __loadsegment_simple(ss, (value))
+#define __loadsegment_ds(value) __loadsegment_simple(ds, (value))
+#define __loadsegment_es(value) __loadsegment_simple(es, (value))
-#endif
+#ifdef CONFIG_X86_32
-#define __KERNEL_CS (GDT_ENTRY_KERNEL_CS*8)
-#define __KERNEL_DS (GDT_ENTRY_KERNEL_DS*8)
-#define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8+3)
-#define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8+3)
-#ifndef CONFIG_PARAVIRT
-#define get_kernel_rpl() 0
-#endif
+/*
+ * On 32-bit systems, the hidden parts of FS and GS are unobservable if
+ * the selector is NULL, so there's no funny business here.
+ */
+#define __loadsegment_fs(value) __loadsegment_simple(fs, (value))
+#define __loadsegment_gs(value) __loadsegment_simple(gs, (value))
-/* User mode is privilege level 3 */
-#define USER_RPL 0x3
-/* LDT segment has TI set, GDT has it cleared */
-#define SEGMENT_LDT 0x4
-#define SEGMENT_GDT 0x0
+#else
-/* Bottom two bits of selector give the ring privilege level */
-#define SEGMENT_RPL_MASK 0x3
-/* Bit 2 is table indicator (LDT/GDT) */
-#define SEGMENT_TI_MASK 0x4
+static inline void __loadsegment_fs(unsigned short value)
+{
+ asm volatile(" \n"
+ "1: movw %0, %%fs \n"
+ "2: \n"
-#define IDT_ENTRIES 256
-#define NUM_EXCEPTION_VECTORS 32
-#define GDT_SIZE (GDT_ENTRIES * 8)
-#define GDT_ENTRY_TLS_ENTRIES 3
-#define TLS_SIZE (GDT_ENTRY_TLS_ENTRIES * 8)
+ _ASM_EXTABLE_TYPE(1b, 2b, EX_TYPE_CLEAR_FS)
+
+ : : "rm" (value) : "memory");
+}
+
+/* __loadsegment_gs is intentionally undefined. Use load_gs_index instead. */
-#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
-extern const char early_idt_handlers[NUM_EXCEPTION_VECTORS][10];
-#endif
#endif
+#define loadsegment(seg, value) __loadsegment_ ## seg (value)
+
+/*
+ * Save a segment register away:
+ */
+#define savesegment(seg, value) \
+ asm("mov %%" #seg ",%0":"=r" (value) : : "memory")
+
+#endif /* !__ASSEMBLY__ */
+#endif /* __KERNEL__ */
+
#endif /* _ASM_X86_SEGMENT_H */
diff --git a/arch/x86/include/asm/sembuf.h b/arch/x86/include/asm/sembuf.h
deleted file mode 100644
index ee50c801f7b7..000000000000
--- a/arch/x86/include/asm/sembuf.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#ifndef _ASM_X86_SEMBUF_H
-#define _ASM_X86_SEMBUF_H
-
-/*
- * The semid64_ds structure for x86 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-struct semid64_ds {
- struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
- __kernel_time_t sem_otime; /* last semop time */
- unsigned long __unused1;
- __kernel_time_t sem_ctime; /* last change time */
- unsigned long __unused2;
- unsigned long sem_nsems; /* no. of semaphores in array */
- unsigned long __unused3;
- unsigned long __unused4;
-};
-
-#endif /* _ASM_X86_SEMBUF_H */
diff --git a/arch/x86/include/asm/serial.h b/arch/x86/include/asm/serial.h
index 628c801535ea..ece8299d2695 100644
--- a/arch/x86/include/asm/serial.h
+++ b/arch/x86/include/asm/serial.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SERIAL_H
#define _ASM_X86_SERIAL_H
@@ -6,24 +7,24 @@
*
* It'd be nice if someone built a serial card with a 24.576 MHz
* clock, since the 16550A is capable of handling a top speed of 1.5
- * megabits/second; but this requires the faster clock.
+ * megabits/second; but this requires a faster clock.
*/
-#define BASE_BAUD ( 1843200 / 16 )
+#define BASE_BAUD (1843200/16)
/* Standard COM flags (except for COM4, because of the 8514 problem) */
-#ifdef CONFIG_SERIAL_DETECT_IRQ
-#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
-#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
+#ifdef CONFIG_SERIAL_8250_DETECT_IRQ
+# define STD_COMX_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | UPF_AUTO_IRQ)
+# define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | 0 | UPF_AUTO_IRQ)
#else
-#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
-#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
+# define STD_COMX_FLAGS (UPF_BOOT_AUTOCONF | UPF_SKIP_TEST | 0 )
+# define STD_COM4_FLAGS (UPF_BOOT_AUTOCONF | 0 | 0 )
#endif
-#define SERIAL_PORT_DFNS \
- /* UART CLK PORT IRQ FLAGS */ \
- { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
- { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
- { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
- { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */
+#define SERIAL_PORT_DFNS \
+ /* UART CLK PORT IRQ FLAGS */ \
+ { .uart = 0, BASE_BAUD, 0x3F8, 4, STD_COMX_FLAGS }, /* ttyS0 */ \
+ { .uart = 0, BASE_BAUD, 0x2F8, 3, STD_COMX_FLAGS }, /* ttyS1 */ \
+ { .uart = 0, BASE_BAUD, 0x3E8, 4, STD_COMX_FLAGS }, /* ttyS2 */ \
+ { .uart = 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */
#endif /* _ASM_X86_SERIAL_H */
diff --git a/arch/x86/include/asm/set_memory.h b/arch/x86/include/asm/set_memory.h
new file mode 100644
index 000000000000..a5e89641bd2d
--- /dev/null
+++ b/arch/x86/include/asm/set_memory.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SET_MEMORY_H
+#define _ASM_X86_SET_MEMORY_H
+
+#include <linux/mm.h>
+#include <asm/page.h>
+#include <asm-generic/set_memory.h>
+
+#define set_memory_rox set_memory_rox
+int set_memory_rox(unsigned long addr, int numpages);
+
+/*
+ * The set_memory_* API can be used to change various attributes of a virtual
+ * address range. The attributes include:
+ * Cacheability : UnCached, WriteCombining, WriteThrough, WriteBack
+ * Executability : eXecutable, NoteXecutable
+ * Read/Write : ReadOnly, ReadWrite
+ * Presence : NotPresent
+ * Encryption : Encrypted, Decrypted
+ *
+ * Within a category, the attributes are mutually exclusive.
+ *
+ * The implementation of this API will take care of various aspects that
+ * are associated with changing such attributes, such as:
+ * - Flushing TLBs
+ * - Flushing CPU caches
+ * - Making sure aliases of the memory behind the mapping don't violate
+ * coherency rules as defined by the CPU in the system.
+ *
+ * What this API does not do:
+ * - Provide exclusion between various callers - including callers that
+ * operation on other mappings of the same physical page
+ * - Restore default attributes when a page is freed
+ * - Guarantee that mappings other than the requested one are
+ * in any state, other than that these do not violate rules for
+ * the CPU you have. Do not depend on any effects on other mappings,
+ * CPUs other than the one you have may have more relaxed rules.
+ * The caller is required to take care of these.
+ */
+
+int __set_memory_prot(unsigned long addr, int numpages, pgprot_t prot);
+int _set_memory_uc(unsigned long addr, int numpages);
+int _set_memory_wc(unsigned long addr, int numpages);
+int _set_memory_wt(unsigned long addr, int numpages);
+int _set_memory_wb(unsigned long addr, int numpages);
+int set_memory_uc(unsigned long addr, int numpages);
+int set_memory_wc(unsigned long addr, int numpages);
+int set_memory_wb(unsigned long addr, int numpages);
+int set_memory_np(unsigned long addr, int numpages);
+int set_memory_4k(unsigned long addr, int numpages);
+int set_memory_encrypted(unsigned long addr, int numpages);
+int set_memory_decrypted(unsigned long addr, int numpages);
+int set_memory_np_noalias(unsigned long addr, int numpages);
+int set_memory_nonglobal(unsigned long addr, int numpages);
+int set_memory_global(unsigned long addr, int numpages);
+
+int set_pages_array_uc(struct page **pages, int addrinarray);
+int set_pages_array_wc(struct page **pages, int addrinarray);
+int set_pages_array_wb(struct page **pages, int addrinarray);
+
+/*
+ * For legacy compatibility with the old APIs, a few functions
+ * are provided that work on a "struct page".
+ * These functions operate ONLY on the 1:1 kernel mapping of the
+ * memory that the struct page represents, and internally just
+ * call the set_memory_* function. See the description of the
+ * set_memory_* function for more details on conventions.
+ *
+ * These APIs should be considered *deprecated* and are likely going to
+ * be removed in the future.
+ * The reason for this is the implicit operation on the 1:1 mapping only,
+ * making this not a generally useful API.
+ *
+ * Specifically, many users of the old APIs had a virtual address,
+ * called virt_to_page() or vmalloc_to_page() on that address to
+ * get a struct page* that the old API required.
+ * To convert these cases, use set_memory_*() on the original
+ * virtual address, do not use these functions.
+ */
+
+int set_pages_uc(struct page *page, int numpages);
+int set_pages_wb(struct page *page, int numpages);
+int set_pages_ro(struct page *page, int numpages);
+int set_pages_rw(struct page *page, int numpages);
+
+int set_direct_map_invalid_noflush(struct page *page);
+int set_direct_map_default_noflush(struct page *page);
+bool kernel_page_present(struct page *page);
+
+extern int kernel_set_to_readonly;
+
+#endif /* _ASM_X86_SET_MEMORY_H */
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index db8aa19a08a2..f3495623ac99 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -1,10 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SETUP_H
#define _ASM_X86_SETUP_H
-#ifdef __KERNEL__
+#include <uapi/asm/setup.h>
#define COMMAND_LINE_SIZE 2048
+#include <linux/linkage.h>
+#include <asm/page_types.h>
+#include <asm/ibt.h>
+
#ifdef __i386__
#include <linux/pfn.h>
@@ -26,6 +31,8 @@
#include <asm/bootparam.h>
#include <asm/x86_init.h>
+extern u64 relocated_ramdisk;
+
/* Interrupt control for vSMPowered x86_64 systems */
#ifdef CONFIG_X86_64
void vsmp_init(void);
@@ -33,24 +40,24 @@ void vsmp_init(void);
static inline void vsmp_init(void) { }
#endif
-void setup_bios_corruption_check(void);
+struct pt_regs;
-#ifdef CONFIG_X86_VISWS
-extern void visws_early_detect(void);
-#else
-static inline void visws_early_detect(void) { }
-#endif
+void setup_bios_corruption_check(void);
+void early_platform_quirks(void);
extern unsigned long saved_video_mode;
extern void reserve_standard_io_resources(void);
extern void i386_reserve_resources(void);
-extern void setup_default_timer_irq(void);
+extern unsigned long __startup_64(unsigned long physaddr, struct boot_params *bp);
+extern void startup_64_setup_env(unsigned long physbase);
+extern void early_setup_idt(void);
+extern void __init do_early_exception(struct pt_regs *regs, int trapnr);
-#ifdef CONFIG_X86_MRST
-extern void x86_mrst_early_setup(void);
+#ifdef CONFIG_X86_INTEL_MID
+extern void x86_intel_mid_early_setup(void);
#else
-static inline void x86_mrst_early_setup(void) { }
+static inline void x86_intel_mid_early_setup(void) { }
#endif
#ifdef CONFIG_X86_INTEL_CE
@@ -61,10 +68,34 @@ static inline void x86_ce4100_early_setup(void) { }
#ifndef _SETUP
+#include <asm/espfix.h>
+#include <linux/kernel.h>
+
/*
* This is set up by the setup-routine at boot-time
*/
extern struct boot_params boot_params;
+extern char _text[];
+
+static inline bool kaslr_enabled(void)
+{
+ return IS_ENABLED(CONFIG_RANDOMIZE_MEMORY) &&
+ !!(boot_params.hdr.loadflags & KASLR_FLAG);
+}
+
+/*
+ * Apply no randomization if KASLR was disabled at boot or if KASAN
+ * is enabled. KASAN shadow mappings rely on regions being PGD aligned.
+ */
+static inline bool kaslr_memory_enabled(void)
+{
+ return kaslr_enabled() && !IS_ENABLED(CONFIG_KASAN);
+}
+
+static inline unsigned long kaslr_offset(void)
+{
+ return (unsigned long)&_text - __START_KERNEL;
+}
/*
* Do NOT EVER look at the BIOS memory size location.
@@ -77,52 +108,44 @@ extern unsigned long _brk_end;
void *extend_brk(size_t size, size_t align);
/*
- * Reserve space in the brk section. The name must be unique within
- * the file, and somewhat descriptive. The size is in bytes. Must be
- * used at file scope.
+ * Reserve space in the .brk section, which is a block of memory from which the
+ * caller is allowed to allocate very early (before even memblock is available)
+ * by calling extend_brk(). All allocated memory will be eventually converted
+ * to memblock. Any leftover unallocated memory will be freed.
*
- * (This uses a temp function to wrap the asm so we can pass it the
- * size parameter; otherwise we wouldn't be able to. We can't use a
- * "section" attribute on a normal variable because it always ends up
- * being @progbits, which ends up allocating space in the vmlinux
- * executable.)
+ * The size is in bytes.
*/
-#define RESERVE_BRK(name,sz) \
- static void __section(.discard.text) __used \
- __brk_reservation_fn_##name##__(void) { \
- asm volatile ( \
- ".pushsection .brk_reservation,\"aw\",@nobits;" \
- ".brk." #name ":" \
- " 1:.skip %c0;" \
- " .size .brk." #name ", . - 1b;" \
- " .popsection" \
- : : "i" (sz)); \
- }
-
-/* Helper for reserving space for arrays of things */
-#define RESERVE_BRK_ARRAY(type, name, entries) \
- type *name; \
- RESERVE_BRK(name, sizeof(type) * entries)
+#define RESERVE_BRK(name, size) \
+ __section(".bss..brk") __aligned(1) __used \
+ static char __brk_##name[size]
+
+extern void probe_roms(void);
+
+void clear_bss(void);
#ifdef __i386__
-void __init i386_start_kernel(void);
-extern void probe_roms(void);
+asmlinkage void __init __noreturn i386_start_kernel(void);
#else
-void __init x86_64_start_kernel(char *real_mode);
-void __init x86_64_start_reservations(char *real_mode_data);
+asmlinkage void __init __noreturn x86_64_start_kernel(char *real_mode);
+asmlinkage void __init __noreturn x86_64_start_reservations(char *real_mode_data);
#endif /* __i386__ */
#endif /* _SETUP */
-#else
-#define RESERVE_BRK(name,sz) \
- .pushsection .brk_reservation,"aw",@nobits; \
-.brk.name: \
-1: .skip sz; \
- .size .brk.name,.-1b; \
+
+#else /* __ASSEMBLY */
+
+.macro __RESERVE_BRK name, size
+ .pushsection .bss..brk, "aw"
+SYM_DATA_START(__brk_\name)
+ .skip \size
+SYM_DATA_END(__brk_\name)
.popsection
+.endm
+
+#define RESERVE_BRK(name, size) __RESERVE_BRK name, size
+
#endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
#endif /* _ASM_X86_SETUP_H */
diff --git a/arch/x86/include/asm/sev-common.h b/arch/x86/include/asm/sev-common.h
new file mode 100644
index 000000000000..0759af9b1acf
--- /dev/null
+++ b/arch/x86/include/asm/sev-common.h
@@ -0,0 +1,171 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AMD SEV header common between the guest and the hypervisor.
+ *
+ * Author: Brijesh Singh <brijesh.singh@amd.com>
+ */
+
+#ifndef __ASM_X86_SEV_COMMON_H
+#define __ASM_X86_SEV_COMMON_H
+
+#define GHCB_MSR_INFO_POS 0
+#define GHCB_DATA_LOW 12
+#define GHCB_MSR_INFO_MASK (BIT_ULL(GHCB_DATA_LOW) - 1)
+
+#define GHCB_DATA(v) \
+ (((unsigned long)(v) & ~GHCB_MSR_INFO_MASK) >> GHCB_DATA_LOW)
+
+/* SEV Information Request/Response */
+#define GHCB_MSR_SEV_INFO_RESP 0x001
+#define GHCB_MSR_SEV_INFO_REQ 0x002
+
+#define GHCB_MSR_SEV_INFO(_max, _min, _cbit) \
+ /* GHCBData[63:48] */ \
+ ((((_max) & 0xffff) << 48) | \
+ /* GHCBData[47:32] */ \
+ (((_min) & 0xffff) << 32) | \
+ /* GHCBData[31:24] */ \
+ (((_cbit) & 0xff) << 24) | \
+ GHCB_MSR_SEV_INFO_RESP)
+
+#define GHCB_MSR_INFO(v) ((v) & 0xfffUL)
+#define GHCB_MSR_PROTO_MAX(v) (((v) >> 48) & 0xffff)
+#define GHCB_MSR_PROTO_MIN(v) (((v) >> 32) & 0xffff)
+
+/* CPUID Request/Response */
+#define GHCB_MSR_CPUID_REQ 0x004
+#define GHCB_MSR_CPUID_RESP 0x005
+#define GHCB_MSR_CPUID_FUNC_POS 32
+#define GHCB_MSR_CPUID_FUNC_MASK 0xffffffff
+#define GHCB_MSR_CPUID_VALUE_POS 32
+#define GHCB_MSR_CPUID_VALUE_MASK 0xffffffff
+#define GHCB_MSR_CPUID_REG_POS 30
+#define GHCB_MSR_CPUID_REG_MASK 0x3
+#define GHCB_CPUID_REQ_EAX 0
+#define GHCB_CPUID_REQ_EBX 1
+#define GHCB_CPUID_REQ_ECX 2
+#define GHCB_CPUID_REQ_EDX 3
+#define GHCB_CPUID_REQ(fn, reg) \
+ /* GHCBData[11:0] */ \
+ (GHCB_MSR_CPUID_REQ | \
+ /* GHCBData[31:12] */ \
+ (((unsigned long)(reg) & 0x3) << 30) | \
+ /* GHCBData[63:32] */ \
+ (((unsigned long)fn) << 32))
+
+/* AP Reset Hold */
+#define GHCB_MSR_AP_RESET_HOLD_REQ 0x006
+#define GHCB_MSR_AP_RESET_HOLD_RESP 0x007
+
+/* GHCB GPA Register */
+#define GHCB_MSR_REG_GPA_REQ 0x012
+#define GHCB_MSR_REG_GPA_REQ_VAL(v) \
+ /* GHCBData[63:12] */ \
+ (((u64)((v) & GENMASK_ULL(51, 0)) << 12) | \
+ /* GHCBData[11:0] */ \
+ GHCB_MSR_REG_GPA_REQ)
+
+#define GHCB_MSR_REG_GPA_RESP 0x013
+#define GHCB_MSR_REG_GPA_RESP_VAL(v) \
+ /* GHCBData[63:12] */ \
+ (((u64)(v) & GENMASK_ULL(63, 12)) >> 12)
+
+/*
+ * SNP Page State Change Operation
+ *
+ * GHCBData[55:52] - Page operation:
+ * 0x0001 Page assignment, Private
+ * 0x0002 Page assignment, Shared
+ */
+enum psc_op {
+ SNP_PAGE_STATE_PRIVATE = 1,
+ SNP_PAGE_STATE_SHARED,
+};
+
+#define GHCB_MSR_PSC_REQ 0x014
+#define GHCB_MSR_PSC_REQ_GFN(gfn, op) \
+ /* GHCBData[55:52] */ \
+ (((u64)((op) & 0xf) << 52) | \
+ /* GHCBData[51:12] */ \
+ ((u64)((gfn) & GENMASK_ULL(39, 0)) << 12) | \
+ /* GHCBData[11:0] */ \
+ GHCB_MSR_PSC_REQ)
+
+#define GHCB_MSR_PSC_RESP 0x015
+#define GHCB_MSR_PSC_RESP_VAL(val) \
+ /* GHCBData[63:32] */ \
+ (((u64)(val) & GENMASK_ULL(63, 32)) >> 32)
+
+/* GHCB Hypervisor Feature Request/Response */
+#define GHCB_MSR_HV_FT_REQ 0x080
+#define GHCB_MSR_HV_FT_RESP 0x081
+#define GHCB_MSR_HV_FT_RESP_VAL(v) \
+ /* GHCBData[63:12] */ \
+ (((u64)(v) & GENMASK_ULL(63, 12)) >> 12)
+
+#define GHCB_HV_FT_SNP BIT_ULL(0)
+#define GHCB_HV_FT_SNP_AP_CREATION BIT_ULL(1)
+
+/* SNP Page State Change NAE event */
+#define VMGEXIT_PSC_MAX_ENTRY 253
+
+struct psc_hdr {
+ u16 cur_entry;
+ u16 end_entry;
+ u32 reserved;
+} __packed;
+
+struct psc_entry {
+ u64 cur_page : 12,
+ gfn : 40,
+ operation : 4,
+ pagesize : 1,
+ reserved : 7;
+} __packed;
+
+struct snp_psc_desc {
+ struct psc_hdr hdr;
+ struct psc_entry entries[VMGEXIT_PSC_MAX_ENTRY];
+} __packed;
+
+#define GHCB_MSR_TERM_REQ 0x100
+#define GHCB_MSR_TERM_REASON_SET_POS 12
+#define GHCB_MSR_TERM_REASON_SET_MASK 0xf
+#define GHCB_MSR_TERM_REASON_POS 16
+#define GHCB_MSR_TERM_REASON_MASK 0xff
+
+#define GHCB_SEV_TERM_REASON(reason_set, reason_val) \
+ /* GHCBData[15:12] */ \
+ (((((u64)reason_set) & 0xf) << 12) | \
+ /* GHCBData[23:16] */ \
+ ((((u64)reason_val) & 0xff) << 16))
+
+/* Error codes from reason set 0 */
+#define SEV_TERM_SET_GEN 0
+#define GHCB_SEV_ES_GEN_REQ 0
+#define GHCB_SEV_ES_PROT_UNSUPPORTED 1
+#define GHCB_SNP_UNSUPPORTED 2
+
+/* Linux-specific reason codes (used with reason set 1) */
+#define SEV_TERM_SET_LINUX 1
+#define GHCB_TERM_REGISTER 0 /* GHCB GPA registration failure */
+#define GHCB_TERM_PSC 1 /* Page State Change failure */
+#define GHCB_TERM_PVALIDATE 2 /* Pvalidate failure */
+#define GHCB_TERM_NOT_VMPL0 3 /* SNP guest is not running at VMPL-0 */
+#define GHCB_TERM_CPUID 4 /* CPUID-validation failure */
+#define GHCB_TERM_CPUID_HV 5 /* CPUID failure during hypervisor fallback */
+
+#define GHCB_RESP_CODE(v) ((v) & GHCB_MSR_INFO_MASK)
+
+/*
+ * Error codes related to GHCB input that can be communicated back to the guest
+ * by setting the lower 32-bits of the GHCB SW_EXITINFO1 field to 2.
+ */
+#define GHCB_ERR_NOT_REGISTERED 1
+#define GHCB_ERR_INVALID_USAGE 2
+#define GHCB_ERR_INVALID_SCRATCH_AREA 3
+#define GHCB_ERR_MISSING_INPUT 4
+#define GHCB_ERR_INVALID_INPUT 5
+#define GHCB_ERR_INVALID_EVENT 6
+
+#endif
diff --git a/arch/x86/include/asm/sev.h b/arch/x86/include/asm/sev.h
new file mode 100644
index 000000000000..13dc2a9d23c1
--- /dev/null
+++ b/arch/x86/include/asm/sev.h
@@ -0,0 +1,230 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * AMD Encrypted Register State Support
+ *
+ * Author: Joerg Roedel <jroedel@suse.de>
+ */
+
+#ifndef __ASM_ENCRYPTED_STATE_H
+#define __ASM_ENCRYPTED_STATE_H
+
+#include <linux/types.h>
+#include <linux/sev-guest.h>
+
+#include <asm/insn.h>
+#include <asm/sev-common.h>
+#include <asm/bootparam.h>
+
+#define GHCB_PROTOCOL_MIN 1ULL
+#define GHCB_PROTOCOL_MAX 2ULL
+#define GHCB_DEFAULT_USAGE 0ULL
+
+#define VMGEXIT() { asm volatile("rep; vmmcall\n\r"); }
+
+enum es_result {
+ ES_OK, /* All good */
+ ES_UNSUPPORTED, /* Requested operation not supported */
+ ES_VMM_ERROR, /* Unexpected state from the VMM */
+ ES_DECODE_FAILED, /* Instruction decoding failed */
+ ES_EXCEPTION, /* Instruction caused exception */
+ ES_RETRY, /* Retry instruction emulation */
+};
+
+struct es_fault_info {
+ unsigned long vector;
+ unsigned long error_code;
+ unsigned long cr2;
+};
+
+struct pt_regs;
+
+/* ES instruction emulation context */
+struct es_em_ctxt {
+ struct pt_regs *regs;
+ struct insn insn;
+ struct es_fault_info fi;
+};
+
+/*
+ * AMD SEV Confidential computing blob structure. The structure is
+ * defined in OVMF UEFI firmware header:
+ * https://github.com/tianocore/edk2/blob/master/OvmfPkg/Include/Guid/ConfidentialComputingSevSnpBlob.h
+ */
+#define CC_BLOB_SEV_HDR_MAGIC 0x45444d41
+struct cc_blob_sev_info {
+ u32 magic;
+ u16 version;
+ u16 reserved;
+ u64 secrets_phys;
+ u32 secrets_len;
+ u32 rsvd1;
+ u64 cpuid_phys;
+ u32 cpuid_len;
+ u32 rsvd2;
+} __packed;
+
+void do_vc_no_ghcb(struct pt_regs *regs, unsigned long exit_code);
+
+static inline u64 lower_bits(u64 val, unsigned int bits)
+{
+ u64 mask = (1ULL << bits) - 1;
+
+ return (val & mask);
+}
+
+struct real_mode_header;
+enum stack_type;
+
+/* Early IDT entry points for #VC handler */
+extern void vc_no_ghcb(void);
+extern void vc_boot_ghcb(void);
+extern bool handle_vc_boot_ghcb(struct pt_regs *regs);
+
+/* Software defined (when rFlags.CF = 1) */
+#define PVALIDATE_FAIL_NOUPDATE 255
+
+/* RMP page size */
+#define RMP_PG_SIZE_4K 0
+
+#define RMPADJUST_VMSA_PAGE_BIT BIT(16)
+
+/* SNP Guest message request */
+struct snp_req_data {
+ unsigned long req_gpa;
+ unsigned long resp_gpa;
+ unsigned long data_gpa;
+ unsigned int data_npages;
+};
+
+struct sev_guest_platform_data {
+ u64 secrets_gpa;
+};
+
+/*
+ * The secrets page contains 96-bytes of reserved field that can be used by
+ * the guest OS. The guest OS uses the area to save the message sequence
+ * number for each VMPCK.
+ *
+ * See the GHCB spec section Secret page layout for the format for this area.
+ */
+struct secrets_os_area {
+ u32 msg_seqno_0;
+ u32 msg_seqno_1;
+ u32 msg_seqno_2;
+ u32 msg_seqno_3;
+ u64 ap_jump_table_pa;
+ u8 rsvd[40];
+ u8 guest_usage[32];
+} __packed;
+
+#define VMPCK_KEY_LEN 32
+
+/* See the SNP spec version 0.9 for secrets page format */
+struct snp_secrets_page_layout {
+ u32 version;
+ u32 imien : 1,
+ rsvd1 : 31;
+ u32 fms;
+ u32 rsvd2;
+ u8 gosvw[16];
+ u8 vmpck0[VMPCK_KEY_LEN];
+ u8 vmpck1[VMPCK_KEY_LEN];
+ u8 vmpck2[VMPCK_KEY_LEN];
+ u8 vmpck3[VMPCK_KEY_LEN];
+ struct secrets_os_area os_area;
+ u8 rsvd3[3840];
+} __packed;
+
+#ifdef CONFIG_AMD_MEM_ENCRYPT
+extern struct static_key_false sev_es_enable_key;
+extern void __sev_es_ist_enter(struct pt_regs *regs);
+extern void __sev_es_ist_exit(void);
+static __always_inline void sev_es_ist_enter(struct pt_regs *regs)
+{
+ if (static_branch_unlikely(&sev_es_enable_key))
+ __sev_es_ist_enter(regs);
+}
+static __always_inline void sev_es_ist_exit(void)
+{
+ if (static_branch_unlikely(&sev_es_enable_key))
+ __sev_es_ist_exit();
+}
+extern int sev_es_setup_ap_jump_table(struct real_mode_header *rmh);
+extern void __sev_es_nmi_complete(void);
+static __always_inline void sev_es_nmi_complete(void)
+{
+ if (static_branch_unlikely(&sev_es_enable_key))
+ __sev_es_nmi_complete();
+}
+extern int __init sev_es_efi_map_ghcbs(pgd_t *pgd);
+
+static inline int rmpadjust(unsigned long vaddr, bool rmp_psize, unsigned long attrs)
+{
+ int rc;
+
+ /* "rmpadjust" mnemonic support in binutils 2.36 and newer */
+ asm volatile(".byte 0xF3,0x0F,0x01,0xFE\n\t"
+ : "=a"(rc)
+ : "a"(vaddr), "c"(rmp_psize), "d"(attrs)
+ : "memory", "cc");
+
+ return rc;
+}
+static inline int pvalidate(unsigned long vaddr, bool rmp_psize, bool validate)
+{
+ bool no_rmpupdate;
+ int rc;
+
+ /* "pvalidate" mnemonic support in binutils 2.36 and newer */
+ asm volatile(".byte 0xF2, 0x0F, 0x01, 0xFF\n\t"
+ CC_SET(c)
+ : CC_OUT(c) (no_rmpupdate), "=a"(rc)
+ : "a"(vaddr), "c"(rmp_psize), "d"(validate)
+ : "memory", "cc");
+
+ if (no_rmpupdate)
+ return PVALIDATE_FAIL_NOUPDATE;
+
+ return rc;
+}
+
+struct snp_guest_request_ioctl;
+
+void setup_ghcb(void);
+void __init early_snp_set_memory_private(unsigned long vaddr, unsigned long paddr,
+ unsigned int npages);
+void __init early_snp_set_memory_shared(unsigned long vaddr, unsigned long paddr,
+ unsigned int npages);
+void __init snp_prep_memory(unsigned long paddr, unsigned int sz, enum psc_op op);
+void snp_set_memory_shared(unsigned long vaddr, unsigned int npages);
+void snp_set_memory_private(unsigned long vaddr, unsigned int npages);
+void snp_set_wakeup_secondary_cpu(void);
+bool snp_init(struct boot_params *bp);
+void __init __noreturn snp_abort(void);
+int snp_issue_guest_request(u64 exit_code, struct snp_req_data *input, struct snp_guest_request_ioctl *rio);
+#else
+static inline void sev_es_ist_enter(struct pt_regs *regs) { }
+static inline void sev_es_ist_exit(void) { }
+static inline int sev_es_setup_ap_jump_table(struct real_mode_header *rmh) { return 0; }
+static inline void sev_es_nmi_complete(void) { }
+static inline int sev_es_efi_map_ghcbs(pgd_t *pgd) { return 0; }
+static inline int pvalidate(unsigned long vaddr, bool rmp_psize, bool validate) { return 0; }
+static inline int rmpadjust(unsigned long vaddr, bool rmp_psize, unsigned long attrs) { return 0; }
+static inline void setup_ghcb(void) { }
+static inline void __init
+early_snp_set_memory_private(unsigned long vaddr, unsigned long paddr, unsigned int npages) { }
+static inline void __init
+early_snp_set_memory_shared(unsigned long vaddr, unsigned long paddr, unsigned int npages) { }
+static inline void __init snp_prep_memory(unsigned long paddr, unsigned int sz, enum psc_op op) { }
+static inline void snp_set_memory_shared(unsigned long vaddr, unsigned int npages) { }
+static inline void snp_set_memory_private(unsigned long vaddr, unsigned int npages) { }
+static inline void snp_set_wakeup_secondary_cpu(void) { }
+static inline bool snp_init(struct boot_params *bp) { return false; }
+static inline void snp_abort(void) { }
+static inline int snp_issue_guest_request(u64 exit_code, struct snp_req_data *input, struct snp_guest_request_ioctl *rio)
+{
+ return -ENOTTY;
+}
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/sgx.h b/arch/x86/include/asm/sgx.h
new file mode 100644
index 000000000000..6a0069761508
--- /dev/null
+++ b/arch/x86/include/asm/sgx.h
@@ -0,0 +1,423 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/**
+ * Copyright(c) 2016-20 Intel Corporation.
+ *
+ * Intel Software Guard Extensions (SGX) support.
+ */
+#ifndef _ASM_X86_SGX_H
+#define _ASM_X86_SGX_H
+
+#include <linux/bits.h>
+#include <linux/types.h>
+
+/*
+ * This file contains both data structures defined by SGX architecture and Linux
+ * defined software data structures and functions. The two should not be mixed
+ * together for better readability. The architectural definitions come first.
+ */
+
+/* The SGX specific CPUID function. */
+#define SGX_CPUID 0x12
+/* EPC enumeration. */
+#define SGX_CPUID_EPC 2
+/* An invalid EPC section, i.e. the end marker. */
+#define SGX_CPUID_EPC_INVALID 0x0
+/* A valid EPC section. */
+#define SGX_CPUID_EPC_SECTION 0x1
+/* The bitmask for the EPC section type. */
+#define SGX_CPUID_EPC_MASK GENMASK(3, 0)
+
+enum sgx_encls_function {
+ ECREATE = 0x00,
+ EADD = 0x01,
+ EINIT = 0x02,
+ EREMOVE = 0x03,
+ EDGBRD = 0x04,
+ EDGBWR = 0x05,
+ EEXTEND = 0x06,
+ ELDU = 0x08,
+ EBLOCK = 0x09,
+ EPA = 0x0A,
+ EWB = 0x0B,
+ ETRACK = 0x0C,
+ EAUG = 0x0D,
+ EMODPR = 0x0E,
+ EMODT = 0x0F,
+};
+
+/**
+ * SGX_ENCLS_FAULT_FLAG - flag signifying an ENCLS return code is a trapnr
+ *
+ * ENCLS has its own (positive value) error codes and also generates
+ * ENCLS specific #GP and #PF faults. And the ENCLS values get munged
+ * with system error codes as everything percolates back up the stack.
+ * Unfortunately (for us), we need to precisely identify each unique
+ * error code, e.g. the action taken if EWB fails varies based on the
+ * type of fault and on the exact SGX error code, i.e. we can't simply
+ * convert all faults to -EFAULT.
+ *
+ * To make all three error types coexist, we set bit 30 to identify an
+ * ENCLS fault. Bit 31 (technically bits N:31) is used to differentiate
+ * between positive (faults and SGX error codes) and negative (system
+ * error codes) values.
+ */
+#define SGX_ENCLS_FAULT_FLAG 0x40000000
+
+/**
+ * enum sgx_return_code - The return code type for ENCLS, ENCLU and ENCLV
+ * %SGX_EPC_PAGE_CONFLICT: Page is being written by other ENCLS function.
+ * %SGX_NOT_TRACKED: Previous ETRACK's shootdown sequence has not
+ * been completed yet.
+ * %SGX_CHILD_PRESENT SECS has child pages present in the EPC.
+ * %SGX_INVALID_EINITTOKEN: EINITTOKEN is invalid and enclave signer's
+ * public key does not match IA32_SGXLEPUBKEYHASH.
+ * %SGX_PAGE_NOT_MODIFIABLE: The EPC page cannot be modified because it
+ * is in the PENDING or MODIFIED state.
+ * %SGX_UNMASKED_EVENT: An unmasked event, e.g. INTR, was received
+ */
+enum sgx_return_code {
+ SGX_EPC_PAGE_CONFLICT = 7,
+ SGX_NOT_TRACKED = 11,
+ SGX_CHILD_PRESENT = 13,
+ SGX_INVALID_EINITTOKEN = 16,
+ SGX_PAGE_NOT_MODIFIABLE = 20,
+ SGX_UNMASKED_EVENT = 128,
+};
+
+/* The modulus size for 3072-bit RSA keys. */
+#define SGX_MODULUS_SIZE 384
+
+/**
+ * enum sgx_miscselect - additional information to an SSA frame
+ * %SGX_MISC_EXINFO: Report #PF or #GP to the SSA frame.
+ *
+ * Save State Area (SSA) is a stack inside the enclave used to store processor
+ * state when an exception or interrupt occurs. This enum defines additional
+ * information stored to an SSA frame.
+ */
+enum sgx_miscselect {
+ SGX_MISC_EXINFO = BIT(0),
+};
+
+#define SGX_MISC_RESERVED_MASK GENMASK_ULL(63, 1)
+
+#define SGX_SSA_GPRS_SIZE 184
+#define SGX_SSA_MISC_EXINFO_SIZE 16
+
+/**
+ * enum sgx_attributes - the attributes field in &struct sgx_secs
+ * %SGX_ATTR_INIT: Enclave can be entered (is initialized).
+ * %SGX_ATTR_DEBUG: Allow ENCLS(EDBGRD) and ENCLS(EDBGWR).
+ * %SGX_ATTR_MODE64BIT: Tell that this a 64-bit enclave.
+ * %SGX_ATTR_PROVISIONKEY: Allow to use provisioning keys for remote
+ * attestation.
+ * %SGX_ATTR_KSS: Allow to use key separation and sharing (KSS).
+ * %SGX_ATTR_EINITTOKENKEY: Allow to use token signing key that is used to
+ * sign cryptographic tokens that can be passed to
+ * EINIT as an authorization to run an enclave.
+ * %SGX_ATTR_ASYNC_EXIT_NOTIFY: Allow enclaves to be notified after an
+ * asynchronous exit has occurred.
+ */
+enum sgx_attribute {
+ SGX_ATTR_INIT = BIT(0),
+ SGX_ATTR_DEBUG = BIT(1),
+ SGX_ATTR_MODE64BIT = BIT(2),
+ /* BIT(3) is reserved */
+ SGX_ATTR_PROVISIONKEY = BIT(4),
+ SGX_ATTR_EINITTOKENKEY = BIT(5),
+ /* BIT(6) is for CET */
+ SGX_ATTR_KSS = BIT(7),
+ /* BIT(8) is reserved */
+ /* BIT(9) is reserved */
+ SGX_ATTR_ASYNC_EXIT_NOTIFY = BIT(10),
+};
+
+#define SGX_ATTR_RESERVED_MASK (BIT_ULL(3) | \
+ BIT_ULL(6) | \
+ BIT_ULL(8) | \
+ BIT_ULL(9) | \
+ GENMASK_ULL(63, 11))
+
+#define SGX_ATTR_UNPRIV_MASK (SGX_ATTR_DEBUG | \
+ SGX_ATTR_MODE64BIT | \
+ SGX_ATTR_KSS | \
+ SGX_ATTR_ASYNC_EXIT_NOTIFY)
+
+#define SGX_ATTR_PRIV_MASK (SGX_ATTR_PROVISIONKEY | \
+ SGX_ATTR_EINITTOKENKEY)
+
+/**
+ * struct sgx_secs - SGX Enclave Control Structure (SECS)
+ * @size: size of the address space
+ * @base: base address of the address space
+ * @ssa_frame_size: size of an SSA frame
+ * @miscselect: additional information stored to an SSA frame
+ * @attributes: attributes for enclave
+ * @xfrm: XSave-Feature Request Mask (subset of XCR0)
+ * @mrenclave: SHA256-hash of the enclave contents
+ * @mrsigner: SHA256-hash of the public key used to sign the SIGSTRUCT
+ * @config_id: a user-defined value that is used in key derivation
+ * @isv_prod_id: a user-defined value that is used in key derivation
+ * @isv_svn: a user-defined value that is used in key derivation
+ * @config_svn: a user-defined value that is used in key derivation
+ *
+ * SGX Enclave Control Structure (SECS) is a special enclave page that is not
+ * visible in the address space. In fact, this structure defines the address
+ * range and other global attributes for the enclave and it is the first EPC
+ * page created for any enclave. It is moved from a temporary buffer to an EPC
+ * by the means of ENCLS[ECREATE] function.
+ */
+struct sgx_secs {
+ u64 size;
+ u64 base;
+ u32 ssa_frame_size;
+ u32 miscselect;
+ u8 reserved1[24];
+ u64 attributes;
+ u64 xfrm;
+ u32 mrenclave[8];
+ u8 reserved2[32];
+ u32 mrsigner[8];
+ u8 reserved3[32];
+ u32 config_id[16];
+ u16 isv_prod_id;
+ u16 isv_svn;
+ u16 config_svn;
+ u8 reserved4[3834];
+} __packed;
+
+/**
+ * enum sgx_tcs_flags - execution flags for TCS
+ * %SGX_TCS_DBGOPTIN: If enabled allows single-stepping and breakpoints
+ * inside an enclave. It is cleared by EADD but can
+ * be set later with EDBGWR.
+ */
+enum sgx_tcs_flags {
+ SGX_TCS_DBGOPTIN = 0x01,
+};
+
+#define SGX_TCS_RESERVED_MASK GENMASK_ULL(63, 1)
+#define SGX_TCS_RESERVED_SIZE 4024
+
+/**
+ * struct sgx_tcs - Thread Control Structure (TCS)
+ * @state: used to mark an entered TCS
+ * @flags: execution flags (cleared by EADD)
+ * @ssa_offset: SSA stack offset relative to the enclave base
+ * @ssa_index: the current SSA frame index (cleard by EADD)
+ * @nr_ssa_frames: the number of frame in the SSA stack
+ * @entry_offset: entry point offset relative to the enclave base
+ * @exit_addr: address outside the enclave to exit on an exception or
+ * interrupt
+ * @fs_offset: offset relative to the enclave base to become FS
+ * segment inside the enclave
+ * @gs_offset: offset relative to the enclave base to become GS
+ * segment inside the enclave
+ * @fs_limit: size to become a new FS-limit (only 32-bit enclaves)
+ * @gs_limit: size to become a new GS-limit (only 32-bit enclaves)
+ *
+ * Thread Control Structure (TCS) is an enclave page visible in its address
+ * space that defines an entry point inside the enclave. A thread enters inside
+ * an enclave by supplying address of TCS to ENCLU(EENTER). A TCS can be entered
+ * by only one thread at a time.
+ */
+struct sgx_tcs {
+ u64 state;
+ u64 flags;
+ u64 ssa_offset;
+ u32 ssa_index;
+ u32 nr_ssa_frames;
+ u64 entry_offset;
+ u64 exit_addr;
+ u64 fs_offset;
+ u64 gs_offset;
+ u32 fs_limit;
+ u32 gs_limit;
+ u8 reserved[SGX_TCS_RESERVED_SIZE];
+} __packed;
+
+/**
+ * struct sgx_pageinfo - an enclave page descriptor
+ * @addr: address of the enclave page
+ * @contents: pointer to the page contents
+ * @metadata: pointer either to a SECINFO or PCMD instance
+ * @secs: address of the SECS page
+ */
+struct sgx_pageinfo {
+ u64 addr;
+ u64 contents;
+ u64 metadata;
+ u64 secs;
+} __packed __aligned(32);
+
+
+/**
+ * enum sgx_page_type - bits in the SECINFO flags defining the page type
+ * %SGX_PAGE_TYPE_SECS: a SECS page
+ * %SGX_PAGE_TYPE_TCS: a TCS page
+ * %SGX_PAGE_TYPE_REG: a regular page
+ * %SGX_PAGE_TYPE_VA: a VA page
+ * %SGX_PAGE_TYPE_TRIM: a page in trimmed state
+ *
+ * Make sure when making changes to this enum that its values can still fit
+ * in the bitfield within &struct sgx_encl_page
+ */
+enum sgx_page_type {
+ SGX_PAGE_TYPE_SECS,
+ SGX_PAGE_TYPE_TCS,
+ SGX_PAGE_TYPE_REG,
+ SGX_PAGE_TYPE_VA,
+ SGX_PAGE_TYPE_TRIM,
+};
+
+#define SGX_NR_PAGE_TYPES 5
+#define SGX_PAGE_TYPE_MASK GENMASK(7, 0)
+
+/**
+ * enum sgx_secinfo_flags - the flags field in &struct sgx_secinfo
+ * %SGX_SECINFO_R: allow read
+ * %SGX_SECINFO_W: allow write
+ * %SGX_SECINFO_X: allow execution
+ * %SGX_SECINFO_SECS: a SECS page
+ * %SGX_SECINFO_TCS: a TCS page
+ * %SGX_SECINFO_REG: a regular page
+ * %SGX_SECINFO_VA: a VA page
+ * %SGX_SECINFO_TRIM: a page in trimmed state
+ */
+enum sgx_secinfo_flags {
+ SGX_SECINFO_R = BIT(0),
+ SGX_SECINFO_W = BIT(1),
+ SGX_SECINFO_X = BIT(2),
+ SGX_SECINFO_SECS = (SGX_PAGE_TYPE_SECS << 8),
+ SGX_SECINFO_TCS = (SGX_PAGE_TYPE_TCS << 8),
+ SGX_SECINFO_REG = (SGX_PAGE_TYPE_REG << 8),
+ SGX_SECINFO_VA = (SGX_PAGE_TYPE_VA << 8),
+ SGX_SECINFO_TRIM = (SGX_PAGE_TYPE_TRIM << 8),
+};
+
+#define SGX_SECINFO_PERMISSION_MASK GENMASK_ULL(2, 0)
+#define SGX_SECINFO_PAGE_TYPE_MASK (SGX_PAGE_TYPE_MASK << 8)
+#define SGX_SECINFO_RESERVED_MASK ~(SGX_SECINFO_PERMISSION_MASK | \
+ SGX_SECINFO_PAGE_TYPE_MASK)
+
+/**
+ * struct sgx_secinfo - describes attributes of an EPC page
+ * @flags: permissions and type
+ *
+ * Used together with ENCLS leaves that add or modify an EPC page to an
+ * enclave to define page permissions and type.
+ */
+struct sgx_secinfo {
+ u64 flags;
+ u8 reserved[56];
+} __packed __aligned(64);
+
+#define SGX_PCMD_RESERVED_SIZE 40
+
+/**
+ * struct sgx_pcmd - Paging Crypto Metadata (PCMD)
+ * @enclave_id: enclave identifier
+ * @mac: MAC over PCMD, page contents and isvsvn
+ *
+ * PCMD is stored for every swapped page to the regular memory. When ELDU loads
+ * the page back it recalculates the MAC by using a isvsvn number stored in a
+ * VA page. Together these two structures bring integrity and rollback
+ * protection.
+ */
+struct sgx_pcmd {
+ struct sgx_secinfo secinfo;
+ u64 enclave_id;
+ u8 reserved[SGX_PCMD_RESERVED_SIZE];
+ u8 mac[16];
+} __packed __aligned(128);
+
+#define SGX_SIGSTRUCT_RESERVED1_SIZE 84
+#define SGX_SIGSTRUCT_RESERVED2_SIZE 20
+#define SGX_SIGSTRUCT_RESERVED3_SIZE 32
+#define SGX_SIGSTRUCT_RESERVED4_SIZE 12
+
+/**
+ * struct sgx_sigstruct_header - defines author of the enclave
+ * @header1: constant byte string
+ * @vendor: must be either 0x0000 or 0x8086
+ * @date: YYYYMMDD in BCD
+ * @header2: constant byte string
+ * @swdefined: software defined value
+ */
+struct sgx_sigstruct_header {
+ u64 header1[2];
+ u32 vendor;
+ u32 date;
+ u64 header2[2];
+ u32 swdefined;
+ u8 reserved1[84];
+} __packed;
+
+/**
+ * struct sgx_sigstruct_body - defines contents of the enclave
+ * @miscselect: additional information stored to an SSA frame
+ * @misc_mask: required miscselect in SECS
+ * @attributes: attributes for enclave
+ * @xfrm: XSave-Feature Request Mask (subset of XCR0)
+ * @attributes_mask: required attributes in SECS
+ * @xfrm_mask: required XFRM in SECS
+ * @mrenclave: SHA256-hash of the enclave contents
+ * @isvprodid: a user-defined value that is used in key derivation
+ * @isvsvn: a user-defined value that is used in key derivation
+ */
+struct sgx_sigstruct_body {
+ u32 miscselect;
+ u32 misc_mask;
+ u8 reserved2[20];
+ u64 attributes;
+ u64 xfrm;
+ u64 attributes_mask;
+ u64 xfrm_mask;
+ u8 mrenclave[32];
+ u8 reserved3[32];
+ u16 isvprodid;
+ u16 isvsvn;
+} __packed;
+
+/**
+ * struct sgx_sigstruct - an enclave signature
+ * @header: defines author of the enclave
+ * @modulus: the modulus of the public key
+ * @exponent: the exponent of the public key
+ * @signature: the signature calculated over the fields except modulus,
+ * @body: defines contents of the enclave
+ * @q1: a value used in RSA signature verification
+ * @q2: a value used in RSA signature verification
+ *
+ * Header and body are the parts that are actual signed. The remaining fields
+ * define the signature of the enclave.
+ */
+struct sgx_sigstruct {
+ struct sgx_sigstruct_header header;
+ u8 modulus[SGX_MODULUS_SIZE];
+ u32 exponent;
+ u8 signature[SGX_MODULUS_SIZE];
+ struct sgx_sigstruct_body body;
+ u8 reserved4[12];
+ u8 q1[SGX_MODULUS_SIZE];
+ u8 q2[SGX_MODULUS_SIZE];
+} __packed;
+
+#define SGX_LAUNCH_TOKEN_SIZE 304
+
+/*
+ * Do not put any hardware-defined SGX structure representations below this
+ * comment!
+ */
+
+#ifdef CONFIG_X86_SGX_KVM
+int sgx_virt_ecreate(struct sgx_pageinfo *pageinfo, void __user *secs,
+ int *trapnr);
+int sgx_virt_einit(void __user *sigstruct, void __user *token,
+ void __user *secs, u64 *lepubkeyhash, int *trapnr);
+#endif
+
+int sgx_set_attribute(unsigned long *allowed_attributes,
+ unsigned int attribute_fd);
+
+#endif /* _ASM_X86_SGX_H */
diff --git a/arch/x86/include/asm/shared/io.h b/arch/x86/include/asm/shared/io.h
new file mode 100644
index 000000000000..8009d781c2f9
--- /dev/null
+++ b/arch/x86/include/asm/shared/io.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SHARED_IO_H
+#define _ASM_X86_SHARED_IO_H
+
+#include <linux/types.h>
+
+#define BUILDIO(bwl, bw, type) \
+static __always_inline void __out##bwl(type value, u16 port) \
+{ \
+ asm volatile("out" #bwl " %" #bw "0, %w1" \
+ : : "a"(value), "Nd"(port)); \
+} \
+ \
+static __always_inline type __in##bwl(u16 port) \
+{ \
+ type value; \
+ asm volatile("in" #bwl " %w1, %" #bw "0" \
+ : "=a"(value) : "Nd"(port)); \
+ return value; \
+}
+
+BUILDIO(b, b, u8)
+BUILDIO(w, w, u16)
+BUILDIO(l, , u32)
+#undef BUILDIO
+
+#define inb __inb
+#define inw __inw
+#define inl __inl
+#define outb __outb
+#define outw __outw
+#define outl __outl
+
+#endif
diff --git a/arch/x86/include/asm/shared/msr.h b/arch/x86/include/asm/shared/msr.h
new file mode 100644
index 000000000000..1e6ec10b3a15
--- /dev/null
+++ b/arch/x86/include/asm/shared/msr.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SHARED_MSR_H
+#define _ASM_X86_SHARED_MSR_H
+
+struct msr {
+ union {
+ struct {
+ u32 l;
+ u32 h;
+ };
+ u64 q;
+ };
+};
+
+#endif /* _ASM_X86_SHARED_MSR_H */
diff --git a/arch/x86/include/asm/shared/tdx.h b/arch/x86/include/asm/shared/tdx.h
new file mode 100644
index 000000000000..2631e01f6e0f
--- /dev/null
+++ b/arch/x86/include/asm/shared/tdx.h
@@ -0,0 +1,44 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SHARED_TDX_H
+#define _ASM_X86_SHARED_TDX_H
+
+#include <linux/bits.h>
+#include <linux/types.h>
+
+#define TDX_HYPERCALL_STANDARD 0
+
+#define TDX_CPUID_LEAF_ID 0x21
+#define TDX_IDENT "IntelTDX "
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Used in __tdx_hypercall() to pass down and get back registers' values of
+ * the TDCALL instruction when requesting services from the VMM.
+ *
+ * This is a software only structure and not part of the TDX module/VMM ABI.
+ */
+struct tdx_hypercall_args {
+ u64 r8;
+ u64 r9;
+ u64 r10;
+ u64 r11;
+ u64 r12;
+ u64 r13;
+ u64 r14;
+ u64 r15;
+ u64 rdi;
+ u64 rsi;
+ u64 rbx;
+ u64 rdx;
+};
+
+/* Used to request services from the VMM */
+u64 __tdx_hypercall(struct tdx_hypercall_args *args);
+u64 __tdx_hypercall_ret(struct tdx_hypercall_args *args);
+
+/* Called from __tdx_hypercall() for unrecoverable failure */
+void __tdx_hypercall_failed(void);
+
+#endif /* !__ASSEMBLY__ */
+#endif /* _ASM_X86_SHARED_TDX_H */
diff --git a/arch/x86/include/asm/shmbuf.h b/arch/x86/include/asm/shmbuf.h
deleted file mode 100644
index 83c05fc2de38..000000000000
--- a/arch/x86/include/asm/shmbuf.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/shmbuf.h>
diff --git a/arch/x86/include/asm/shmparam.h b/arch/x86/include/asm/shmparam.h
index 0880cf0917b9..c4041819c3e5 100644
--- a/arch/x86/include/asm/shmparam.h
+++ b/arch/x86/include/asm/shmparam.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SHMPARAM_H
#define _ASM_X86_SHMPARAM_H
diff --git a/arch/x86/include/asm/sigcontext.h b/arch/x86/include/asm/sigcontext.h
index 04459d25e66e..140d890c2c98 100644
--- a/arch/x86/include/asm/sigcontext.h
+++ b/arch/x86/include/asm/sigcontext.h
@@ -1,290 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SIGCONTEXT_H
#define _ASM_X86_SIGCONTEXT_H
-#include <linux/compiler.h>
-#include <linux/types.h>
+/* This is a legacy header - all kernel code includes <uapi/asm/sigcontext.h> directly. */
-#define FP_XSTATE_MAGIC1 0x46505853U
-#define FP_XSTATE_MAGIC2 0x46505845U
-#define FP_XSTATE_MAGIC2_SIZE sizeof(FP_XSTATE_MAGIC2)
-
-/*
- * bytes 464..511 in the current 512byte layout of fxsave/fxrstor frame
- * are reserved for SW usage. On cpu's supporting xsave/xrstor, these bytes
- * are used to extended the fpstate pointer in the sigcontext, which now
- * includes the extended state information along with fpstate information.
- *
- * Presence of FP_XSTATE_MAGIC1 at the beginning of this SW reserved
- * area and FP_XSTATE_MAGIC2 at the end of memory layout
- * (extended_size - FP_XSTATE_MAGIC2_SIZE) indicates the presence of the
- * extended state information in the memory layout pointed by the fpstate
- * pointer in sigcontext.
- */
-struct _fpx_sw_bytes {
- __u32 magic1; /* FP_XSTATE_MAGIC1 */
- __u32 extended_size; /* total size of the layout referred by
- * fpstate pointer in the sigcontext.
- */
- __u64 xstate_bv;
- /* feature bit mask (including fp/sse/extended
- * state) that is present in the memory
- * layout.
- */
- __u32 xstate_size; /* actual xsave state size, based on the
- * features saved in the layout.
- * 'extended_size' will be greater than
- * 'xstate_size'.
- */
- __u32 padding[7]; /* for future use. */
-};
-
-#ifdef __i386__
-/*
- * As documented in the iBCS2 standard..
- *
- * The first part of "struct _fpstate" is just the normal i387
- * hardware setup, the extra "status" word is used to save the
- * coprocessor status word before entering the handler.
- *
- * Pentium III FXSR, SSE support
- * Gareth Hughes <gareth@valinux.com>, May 2000
- *
- * The FPU state data structure has had to grow to accommodate the
- * extended FPU state required by the Streaming SIMD Extensions.
- * There is no documented standard to accomplish this at the moment.
- */
-struct _fpreg {
- unsigned short significand[4];
- unsigned short exponent;
-};
-
-struct _fpxreg {
- unsigned short significand[4];
- unsigned short exponent;
- unsigned short padding[3];
-};
-
-struct _xmmreg {
- unsigned long element[4];
-};
-
-struct _fpstate {
- /* Regular FPU environment */
- unsigned long cw;
- unsigned long sw;
- unsigned long tag;
- unsigned long ipoff;
- unsigned long cssel;
- unsigned long dataoff;
- unsigned long datasel;
- struct _fpreg _st[8];
- unsigned short status;
- unsigned short magic; /* 0xffff = regular FPU data only */
-
- /* FXSR FPU environment */
- unsigned long _fxsr_env[6]; /* FXSR FPU env is ignored */
- unsigned long mxcsr;
- unsigned long reserved;
- struct _fpxreg _fxsr_st[8]; /* FXSR FPU reg data is ignored */
- struct _xmmreg _xmm[8];
- unsigned long padding1[44];
-
- union {
- unsigned long padding2[12];
- struct _fpx_sw_bytes sw_reserved; /* represents the extended
- * state info */
- };
-};
-
-#define X86_FXSR_MAGIC 0x0000
-
-#ifdef __KERNEL__
-struct sigcontext {
- unsigned short gs, __gsh;
- unsigned short fs, __fsh;
- unsigned short es, __esh;
- unsigned short ds, __dsh;
- unsigned long di;
- unsigned long si;
- unsigned long bp;
- unsigned long sp;
- unsigned long bx;
- unsigned long dx;
- unsigned long cx;
- unsigned long ax;
- unsigned long trapno;
- unsigned long err;
- unsigned long ip;
- unsigned short cs, __csh;
- unsigned long flags;
- unsigned long sp_at_signal;
- unsigned short ss, __ssh;
-
- /*
- * fpstate is really (struct _fpstate *) or (struct _xstate *)
- * depending on the FP_XSTATE_MAGIC1 encoded in the SW reserved
- * bytes of (struct _fpstate) and FP_XSTATE_MAGIC2 present at the end
- * of extended memory layout. See comments at the definition of
- * (struct _fpx_sw_bytes)
- */
- void __user *fpstate; /* zero when no FPU/extended context */
- unsigned long oldmask;
- unsigned long cr2;
-};
-#else /* __KERNEL__ */
-/*
- * User-space might still rely on the old definition:
- */
-struct sigcontext {
- unsigned short gs, __gsh;
- unsigned short fs, __fsh;
- unsigned short es, __esh;
- unsigned short ds, __dsh;
- unsigned long edi;
- unsigned long esi;
- unsigned long ebp;
- unsigned long esp;
- unsigned long ebx;
- unsigned long edx;
- unsigned long ecx;
- unsigned long eax;
- unsigned long trapno;
- unsigned long err;
- unsigned long eip;
- unsigned short cs, __csh;
- unsigned long eflags;
- unsigned long esp_at_signal;
- unsigned short ss, __ssh;
- struct _fpstate __user *fpstate;
- unsigned long oldmask;
- unsigned long cr2;
-};
-#endif /* !__KERNEL__ */
-
-#else /* __i386__ */
-
-/* FXSAVE frame */
-/* Note: reserved1/2 may someday contain valuable data. Always save/restore
- them when you change signal frames. */
-struct _fpstate {
- __u16 cwd;
- __u16 swd;
- __u16 twd; /* Note this is not the same as the
- 32bit/x87/FSAVE twd */
- __u16 fop;
- __u64 rip;
- __u64 rdp;
- __u32 mxcsr;
- __u32 mxcsr_mask;
- __u32 st_space[32]; /* 8*16 bytes for each FP-reg */
- __u32 xmm_space[64]; /* 16*16 bytes for each XMM-reg */
- __u32 reserved2[12];
- union {
- __u32 reserved3[12];
- struct _fpx_sw_bytes sw_reserved; /* represents the extended
- * state information */
- };
-};
-
-#ifdef __KERNEL__
-struct sigcontext {
- unsigned long r8;
- unsigned long r9;
- unsigned long r10;
- unsigned long r11;
- unsigned long r12;
- unsigned long r13;
- unsigned long r14;
- unsigned long r15;
- unsigned long di;
- unsigned long si;
- unsigned long bp;
- unsigned long bx;
- unsigned long dx;
- unsigned long ax;
- unsigned long cx;
- unsigned long sp;
- unsigned long ip;
- unsigned long flags;
- unsigned short cs;
- unsigned short gs;
- unsigned short fs;
- unsigned short __pad0;
- unsigned long err;
- unsigned long trapno;
- unsigned long oldmask;
- unsigned long cr2;
-
- /*
- * fpstate is really (struct _fpstate *) or (struct _xstate *)
- * depending on the FP_XSTATE_MAGIC1 encoded in the SW reserved
- * bytes of (struct _fpstate) and FP_XSTATE_MAGIC2 present at the end
- * of extended memory layout. See comments at the definition of
- * (struct _fpx_sw_bytes)
- */
- void __user *fpstate; /* zero when no FPU/extended context */
- unsigned long reserved1[8];
-};
-#else /* __KERNEL__ */
-/*
- * User-space might still rely on the old definition:
- */
-struct sigcontext {
- unsigned long r8;
- unsigned long r9;
- unsigned long r10;
- unsigned long r11;
- unsigned long r12;
- unsigned long r13;
- unsigned long r14;
- unsigned long r15;
- unsigned long rdi;
- unsigned long rsi;
- unsigned long rbp;
- unsigned long rbx;
- unsigned long rdx;
- unsigned long rax;
- unsigned long rcx;
- unsigned long rsp;
- unsigned long rip;
- unsigned long eflags; /* RFLAGS */
- unsigned short cs;
- unsigned short gs;
- unsigned short fs;
- unsigned short __pad0;
- unsigned long err;
- unsigned long trapno;
- unsigned long oldmask;
- unsigned long cr2;
- struct _fpstate __user *fpstate; /* zero when no FPU context */
- unsigned long reserved1[8];
-};
-#endif /* !__KERNEL__ */
-
-#endif /* !__i386__ */
-
-struct _xsave_hdr {
- __u64 xstate_bv;
- __u64 reserved1[2];
- __u64 reserved2[5];
-};
-
-struct _ymmh_state {
- /* 16 * 16 bytes for each YMMH-reg */
- __u32 ymmh_space[64];
-};
-
-/*
- * Extended state pointed by the fpstate pointer in the sigcontext.
- * In addition to the fpstate, information encoded in the xstate_hdr
- * indicates the presence of other extended state information
- * supported by the processor and OS.
- */
-struct _xstate {
- struct _fpstate fpstate;
- struct _xsave_hdr xstate_hdr;
- struct _ymmh_state ymmh;
- /* new processor state extensions go here */
-};
+#include <uapi/asm/sigcontext.h>
#endif /* _ASM_X86_SIGCONTEXT_H */
diff --git a/arch/x86/include/asm/sigcontext32.h b/arch/x86/include/asm/sigcontext32.h
deleted file mode 100644
index ad1478c4ae12..000000000000
--- a/arch/x86/include/asm/sigcontext32.h
+++ /dev/null
@@ -1,77 +0,0 @@
-#ifndef _ASM_X86_SIGCONTEXT32_H
-#define _ASM_X86_SIGCONTEXT32_H
-
-#include <linux/types.h>
-
-/* signal context for 32bit programs. */
-
-#define X86_FXSR_MAGIC 0x0000
-
-struct _fpreg {
- unsigned short significand[4];
- unsigned short exponent;
-};
-
-struct _fpxreg {
- unsigned short significand[4];
- unsigned short exponent;
- unsigned short padding[3];
-};
-
-struct _xmmreg {
- __u32 element[4];
-};
-
-/* FSAVE frame with extensions */
-struct _fpstate_ia32 {
- /* Regular FPU environment */
- __u32 cw;
- __u32 sw;
- __u32 tag; /* not compatible to 64bit twd */
- __u32 ipoff;
- __u32 cssel;
- __u32 dataoff;
- __u32 datasel;
- struct _fpreg _st[8];
- unsigned short status;
- unsigned short magic; /* 0xffff = regular FPU data only */
-
- /* FXSR FPU environment */
- __u32 _fxsr_env[6];
- __u32 mxcsr;
- __u32 reserved;
- struct _fpxreg _fxsr_st[8];
- struct _xmmreg _xmm[8]; /* It's actually 16 */
- __u32 padding[44];
- union {
- __u32 padding2[12];
- struct _fpx_sw_bytes sw_reserved;
- };
-};
-
-struct sigcontext_ia32 {
- unsigned short gs, __gsh;
- unsigned short fs, __fsh;
- unsigned short es, __esh;
- unsigned short ds, __dsh;
- unsigned int di;
- unsigned int si;
- unsigned int bp;
- unsigned int sp;
- unsigned int bx;
- unsigned int dx;
- unsigned int cx;
- unsigned int ax;
- unsigned int trapno;
- unsigned int err;
- unsigned int ip;
- unsigned short cs, __csh;
- unsigned int flags;
- unsigned int sp_at_signal;
- unsigned short ss, __ssh;
- unsigned int fpstate; /* really (struct _fpstate_ia32 *) */
- unsigned int oldmask;
- unsigned int cr2;
-};
-
-#endif /* _ASM_X86_SIGCONTEXT32_H */
diff --git a/arch/x86/include/asm/sigframe.h b/arch/x86/include/asm/sigframe.h
index 4e0fe26d27d3..5b1ed650b124 100644
--- a/arch/x86/include/asm/sigframe.h
+++ b/arch/x86/include/asm/sigframe.h
@@ -1,15 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SIGFRAME_H
#define _ASM_X86_SIGFRAME_H
-#include <asm/sigcontext.h>
+#include <uapi/asm/sigcontext.h>
#include <asm/siginfo.h>
#include <asm/ucontext.h>
+#include <linux/compat.h>
#ifdef CONFIG_X86_32
#define sigframe_ia32 sigframe
#define rt_sigframe_ia32 rt_sigframe
-#define sigcontext_ia32 sigcontext
-#define _fpstate_ia32 _fpstate
#define ucontext_ia32 ucontext
#else /* !CONFIG_X86_32 */
@@ -23,7 +23,7 @@
struct sigframe_ia32 {
u32 pretcode;
int sig;
- struct sigcontext_ia32 sc;
+ struct sigcontext_32 sc;
/*
* fpstate is unused. fpstate is moved/allocated after
* retcode[] below. This movement allows to have the FP state and the
@@ -32,12 +32,8 @@ struct sigframe_ia32 {
* the offset of extramask[] in the sigframe and thus prevent any
* legacy application accessing/modifying it.
*/
- struct _fpstate_ia32 fpstate_unused;
-#ifdef CONFIG_IA32_EMULATION
- unsigned int extramask[_COMPAT_NSIG_WORDS-1];
-#else /* !CONFIG_IA32_EMULATION */
- unsigned long extramask[_NSIG_WORDS-1];
-#endif /* CONFIG_IA32_EMULATION */
+ struct _fpstate_32 fpstate_unused;
+ unsigned int extramask[1];
char retcode[8];
/* fp state follows here */
};
@@ -59,12 +55,36 @@ struct rt_sigframe_ia32 {
#endif /* defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) */
#ifdef CONFIG_X86_64
+
struct rt_sigframe {
char __user *pretcode;
struct ucontext uc;
struct siginfo info;
/* fp state follows here */
};
+
+#ifdef CONFIG_X86_X32_ABI
+
+struct ucontext_x32 {
+ unsigned int uc_flags;
+ unsigned int uc_link;
+ compat_stack_t uc_stack;
+ unsigned int uc__pad0; /* needed for alignment */
+ struct sigcontext uc_mcontext; /* the 64-bit sigcontext type */
+ compat_sigset_t uc_sigmask; /* mask last for extensibility */
+};
+
+struct rt_sigframe_x32 {
+ u64 pretcode;
+ struct ucontext_x32 uc;
+ compat_siginfo_t info;
+ /* fp state follows here */
+};
+
+#endif /* CONFIG_X86_X32_ABI */
+
#endif /* CONFIG_X86_64 */
+void __init init_sigframe_size(void);
+
#endif /* _ASM_X86_SIGFRAME_H */
diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h
new file mode 100644
index 000000000000..e770c4fc47f4
--- /dev/null
+++ b/arch/x86/include/asm/sighandling.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SIGHANDLING_H
+#define _ASM_X86_SIGHANDLING_H
+
+#include <linux/compiler.h>
+#include <linux/ptrace.h>
+#include <linux/signal.h>
+
+#include <asm/processor-flags.h>
+
+#define FIX_EFLAGS (X86_EFLAGS_AC | X86_EFLAGS_OF | \
+ X86_EFLAGS_DF | X86_EFLAGS_TF | X86_EFLAGS_SF | \
+ X86_EFLAGS_ZF | X86_EFLAGS_AF | X86_EFLAGS_PF | \
+ X86_EFLAGS_CF | X86_EFLAGS_RF)
+
+void signal_fault(struct pt_regs *regs, void __user *frame, char *where);
+
+void __user *
+get_sigframe(struct ksignal *ksig, struct pt_regs *regs, size_t frame_size,
+ void __user **fpstate);
+
+int ia32_setup_frame(struct ksignal *ksig, struct pt_regs *regs);
+int ia32_setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs);
+int x64_setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs);
+int x32_setup_rt_frame(struct ksignal *ksig, struct pt_regs *regs);
+
+#endif /* _ASM_X86_SIGHANDLING_H */
diff --git a/arch/x86/include/asm/siginfo.h b/arch/x86/include/asm/siginfo.h
deleted file mode 100644
index fc1aa5535646..000000000000
--- a/arch/x86/include/asm/siginfo.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _ASM_X86_SIGINFO_H
-#define _ASM_X86_SIGINFO_H
-
-#ifdef __x86_64__
-# define __ARCH_SI_PREAMBLE_SIZE (4 * sizeof(int))
-#endif
-
-#include <asm-generic/siginfo.h>
-
-#endif /* _ASM_X86_SIGINFO_H */
diff --git a/arch/x86/include/asm/signal.h b/arch/x86/include/asm/signal.h
index 598457cbd0f8..4a4043ca6493 100644
--- a/arch/x86/include/asm/signal.h
+++ b/arch/x86/include/asm/signal.h
@@ -1,15 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SIGNAL_H
#define _ASM_X86_SIGNAL_H
#ifndef __ASSEMBLY__
-#include <linux/types.h>
-#include <linux/time.h>
-#include <linux/compiler.h>
-
-/* Avoid too many header ordering problems. */
-struct siginfo;
-
-#ifdef __KERNEL__
#include <linux/linkage.h>
/* Most things should be clean enough to redefine this at will, if care
@@ -31,160 +24,18 @@ typedef struct {
unsigned long sig[_NSIG_WORDS];
} sigset_t;
-#else
-/* Here we must cater to libcs that poke about in kernel headers. */
-
-#define NSIG 32
-typedef unsigned long sigset_t;
+/* non-uapi in-kernel SA_FLAGS for those indicates ABI for a signal frame */
+#define SA_IA32_ABI 0x02000000u
+#define SA_X32_ABI 0x01000000u
-#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
-
-#define SIGHUP 1
-#define SIGINT 2
-#define SIGQUIT 3
-#define SIGILL 4
-#define SIGTRAP 5
-#define SIGABRT 6
-#define SIGIOT 6
-#define SIGBUS 7
-#define SIGFPE 8
-#define SIGKILL 9
-#define SIGUSR1 10
-#define SIGSEGV 11
-#define SIGUSR2 12
-#define SIGPIPE 13
-#define SIGALRM 14
-#define SIGTERM 15
-#define SIGSTKFLT 16
-#define SIGCHLD 17
-#define SIGCONT 18
-#define SIGSTOP 19
-#define SIGTSTP 20
-#define SIGTTIN 21
-#define SIGTTOU 22
-#define SIGURG 23
-#define SIGXCPU 24
-#define SIGXFSZ 25
-#define SIGVTALRM 26
-#define SIGPROF 27
-#define SIGWINCH 28
-#define SIGIO 29
-#define SIGPOLL SIGIO
-/*
-#define SIGLOST 29
-*/
-#define SIGPWR 30
-#define SIGSYS 31
-#define SIGUNUSED 31
-
-/* These should not be considered constants from userland. */
-#define SIGRTMIN 32
-#define SIGRTMAX _NSIG
-
-/*
- * SA_FLAGS values:
- *
- * SA_ONSTACK indicates that a registered stack_t will be used.
- * SA_RESTART flag to get restarting signals (which were the default long ago)
- * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
- * SA_RESETHAND clears the handler when the signal is delivered.
- * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
- * SA_NODEFER prevents the current signal from being masked in the handler.
- *
- * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
- * Unix names RESETHAND and NODEFER respectively.
- */
-#define SA_NOCLDSTOP 0x00000001u
-#define SA_NOCLDWAIT 0x00000002u
-#define SA_SIGINFO 0x00000004u
-#define SA_ONSTACK 0x08000000u
-#define SA_RESTART 0x10000000u
-#define SA_NODEFER 0x40000000u
-#define SA_RESETHAND 0x80000000u
-
-#define SA_NOMASK SA_NODEFER
-#define SA_ONESHOT SA_RESETHAND
-
-#define SA_RESTORER 0x04000000
-
-/*
- * sigaltstack controls
- */
-#define SS_ONSTACK 1
-#define SS_DISABLE 2
-
-#define MINSIGSTKSZ 2048
-#define SIGSTKSZ 8192
-
-#include <asm-generic/signal-defs.h>
-
+#include <uapi/asm/signal.h>
#ifndef __ASSEMBLY__
-# ifdef __KERNEL__
-extern void do_notify_resume(struct pt_regs *, void *, __u32);
-# endif /* __KERNEL__ */
-
-#ifdef __i386__
-# ifdef __KERNEL__
-struct old_sigaction {
- __sighandler_t sa_handler;
- old_sigset_t sa_mask;
- unsigned long sa_flags;
- __sigrestore_t sa_restorer;
-};
-
-struct sigaction {
- __sighandler_t sa_handler;
- unsigned long sa_flags;
- __sigrestore_t sa_restorer;
- sigset_t sa_mask; /* mask last for extensibility */
-};
+#define __ARCH_HAS_SA_RESTORER
-struct k_sigaction {
- struct sigaction sa;
-};
-
-# else /* __KERNEL__ */
-/* Here we must cater to libcs that poke about in kernel headers. */
-
-struct sigaction {
- union {
- __sighandler_t _sa_handler;
- void (*_sa_sigaction)(int, struct siginfo *, void *);
- } _u;
- sigset_t sa_mask;
- unsigned long sa_flags;
- void (*sa_restorer)(void);
-};
-
-#define sa_handler _u._sa_handler
-#define sa_sigaction _u._sa_sigaction
-
-# endif /* ! __KERNEL__ */
-#else /* __i386__ */
-
-struct sigaction {
- __sighandler_t sa_handler;
- unsigned long sa_flags;
- __sigrestore_t sa_restorer;
- sigset_t sa_mask; /* mask last for extensibility */
-};
-
-struct k_sigaction {
- struct sigaction sa;
-};
-
-#endif /* !__i386__ */
-
-typedef struct sigaltstack {
- void __user *ss_sp;
- int ss_flags;
- size_t ss_size;
-} stack_t;
-
-#ifdef __KERNEL__
-#include <asm/sigcontext.h>
+#include <asm/asm.h>
+#include <uapi/asm/sigcontext.h>
#ifdef __i386__
@@ -231,9 +82,9 @@ static inline int __const_sigismember(sigset_t *set, int _sig)
static inline int __gen_sigismember(sigset_t *set, int _sig)
{
- int ret;
- asm("btl %2,%1\n\tsbbl %0,%0"
- : "=r"(ret) : "m"(*set), "Ir"(_sig-1) : "cc");
+ bool ret;
+ asm("btl %2,%1" CC_SET(c)
+ : CC_OUT(c) (ret) : "m"(*set), "Ir"(_sig-1));
return ret;
}
@@ -242,12 +93,6 @@ static inline int __gen_sigismember(sigset_t *set, int _sig)
? __const_sigismember((set), (sig)) \
: __gen_sigismember((set), (sig)))
-static inline int sigfindinword(unsigned long word)
-{
- asm("bsfl %1,%0" : "=r"(word) : "rm"(word) : "cc");
- return word;
-}
-
struct pt_regs;
#else /* __i386__ */
@@ -256,9 +101,5 @@ struct pt_regs;
#endif /* !__i386__ */
-#define ptrace_signal_deliver(regs, cookie) do { } while (0)
-
-#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
-
#endif /* _ASM_X86_SIGNAL_H */
diff --git a/arch/x86/include/asm/simd.h b/arch/x86/include/asm/simd.h
new file mode 100644
index 000000000000..a341c878e977
--- /dev/null
+++ b/arch/x86/include/asm/simd.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#include <asm/fpu/api.h>
+
+/*
+ * may_use_simd - whether it is allowable at this time to issue SIMD
+ * instructions or access the SIMD register file
+ */
+static __must_check inline bool may_use_simd(void)
+{
+ return irq_fpu_usable();
+}
diff --git a/arch/x86/include/asm/smap.h b/arch/x86/include/asm/smap.h
new file mode 100644
index 000000000000..bab490379c65
--- /dev/null
+++ b/arch/x86/include/asm/smap.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Supervisor Mode Access Prevention support
+ *
+ * Copyright (C) 2012 Intel Corporation
+ * Author: H. Peter Anvin <hpa@linux.intel.com>
+ */
+
+#ifndef _ASM_X86_SMAP_H
+#define _ASM_X86_SMAP_H
+
+#include <asm/nops.h>
+#include <asm/cpufeatures.h>
+#include <asm/alternative.h>
+
+/* "Raw" instruction opcodes */
+#define __ASM_CLAC ".byte 0x0f,0x01,0xca"
+#define __ASM_STAC ".byte 0x0f,0x01,0xcb"
+
+#ifdef __ASSEMBLY__
+
+#define ASM_CLAC \
+ ALTERNATIVE "", __ASM_CLAC, X86_FEATURE_SMAP
+
+#define ASM_STAC \
+ ALTERNATIVE "", __ASM_STAC, X86_FEATURE_SMAP
+
+#else /* __ASSEMBLY__ */
+
+static __always_inline void clac(void)
+{
+ /* Note: a barrier is implicit in alternative() */
+ alternative("", __ASM_CLAC, X86_FEATURE_SMAP);
+}
+
+static __always_inline void stac(void)
+{
+ /* Note: a barrier is implicit in alternative() */
+ alternative("", __ASM_STAC, X86_FEATURE_SMAP);
+}
+
+static __always_inline unsigned long smap_save(void)
+{
+ unsigned long flags;
+
+ asm volatile ("# smap_save\n\t"
+ ALTERNATIVE("", "pushf; pop %0; " __ASM_CLAC "\n\t",
+ X86_FEATURE_SMAP)
+ : "=rm" (flags) : : "memory", "cc");
+
+ return flags;
+}
+
+static __always_inline void smap_restore(unsigned long flags)
+{
+ asm volatile ("# smap_restore\n\t"
+ ALTERNATIVE("", "push %0; popf\n\t",
+ X86_FEATURE_SMAP)
+ : : "g" (flags) : "memory", "cc");
+}
+
+/* These macros can be used in asm() statements */
+#define ASM_CLAC \
+ ALTERNATIVE("", __ASM_CLAC, X86_FEATURE_SMAP)
+#define ASM_STAC \
+ ALTERNATIVE("", __ASM_STAC, X86_FEATURE_SMAP)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_X86_SMAP_H */
diff --git a/arch/x86/include/asm/smp.h b/arch/x86/include/asm/smp.h
index 73b11bc0ae6f..4e91054c84be 100644
--- a/arch/x86/include/asm/smp.h
+++ b/arch/x86/include/asm/smp.h
@@ -1,66 +1,33 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SMP_H
#define _ASM_X86_SMP_H
#ifndef __ASSEMBLY__
#include <linux/cpumask.h>
-#include <linux/init.h>
-#include <asm/percpu.h>
-/*
- * We need the APIC definitions automatically as part of 'smp.h'
- */
-#ifdef CONFIG_X86_LOCAL_APIC
-# include <asm/mpspec.h>
-# include <asm/apic.h>
-# ifdef CONFIG_X86_IO_APIC
-# include <asm/io_apic.h>
-# endif
-#endif
-#include <asm/thread_info.h>
#include <asm/cpumask.h>
-#include <asm/cpufeature.h>
+#include <asm/current.h>
+#include <asm/thread_info.h>
extern int smp_num_siblings;
extern unsigned int num_processors;
-static inline bool cpu_has_ht_siblings(void)
-{
- bool has_siblings = false;
-#ifdef CONFIG_SMP
- has_siblings = cpu_has_ht && smp_num_siblings > 1;
-#endif
- return has_siblings;
-}
-
-DECLARE_PER_CPU(cpumask_var_t, cpu_sibling_map);
-DECLARE_PER_CPU(cpumask_var_t, cpu_core_map);
+DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_sibling_map);
+DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_core_map);
+DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_die_map);
/* cpus sharing the last level cache: */
-DECLARE_PER_CPU(cpumask_var_t, cpu_llc_shared_map);
-DECLARE_PER_CPU(u16, cpu_llc_id);
-DECLARE_PER_CPU(int, cpu_number);
-
-static inline struct cpumask *cpu_sibling_mask(int cpu)
-{
- return per_cpu(cpu_sibling_map, cpu);
-}
-
-static inline struct cpumask *cpu_core_mask(int cpu)
-{
- return per_cpu(cpu_core_map, cpu);
-}
-
-static inline struct cpumask *cpu_llc_shared_mask(int cpu)
-{
- return per_cpu(cpu_llc_shared_map, cpu);
-}
-
-DECLARE_EARLY_PER_CPU(u16, x86_cpu_to_apicid);
-DECLARE_EARLY_PER_CPU(u16, x86_bios_cpu_apicid);
+DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_llc_shared_map);
+DECLARE_PER_CPU_READ_MOSTLY(cpumask_var_t, cpu_l2c_shared_map);
+DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_llc_id);
+DECLARE_PER_CPU_READ_MOSTLY(u16, cpu_l2c_id);
+
+DECLARE_EARLY_PER_CPU_READ_MOSTLY(u16, x86_cpu_to_apicid);
+DECLARE_EARLY_PER_CPU_READ_MOSTLY(u32, x86_cpu_to_acpiid);
+DECLARE_EARLY_PER_CPU_READ_MOSTLY(u16, x86_bios_cpu_apicid);
#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_32)
-DECLARE_EARLY_PER_CPU(int, x86_cpu_to_logical_apicid);
+DECLARE_EARLY_PER_CPU_READ_MOSTLY(int, x86_cpu_to_logical_apicid);
#endif
-/* Static state in head.S used to set up a CPU */
-extern unsigned long stack_start; /* Initial stack pointer address */
+struct task_struct;
struct smp_ops {
void (*smp_prepare_boot_cpu)(void);
@@ -68,9 +35,10 @@ struct smp_ops {
void (*smp_cpus_done)(unsigned max_cpus);
void (*stop_other_cpus)(int wait);
+ void (*crash_stop_other_cpus)(void);
void (*smp_send_reschedule)(int cpu);
- int (*cpu_up)(unsigned cpu);
+ int (*cpu_up)(unsigned cpu, struct task_struct *tidle);
int (*cpu_disable)(void);
void (*cpu_die)(unsigned int cpu);
void (*play_dead)(void);
@@ -83,9 +51,6 @@ struct smp_ops {
extern void set_cpu_sibling_map(int cpu);
#ifdef CONFIG_SMP
-#ifndef CONFIG_PARAVIRT
-#define startup_ipi_hook(phys_apicid, start_eip, start_esp) do { } while (0)
-#endif
extern struct smp_ops smp_ops;
static inline void smp_send_stop(void)
@@ -113,9 +78,9 @@ static inline void smp_cpus_done(unsigned int max_cpus)
smp_ops.smp_cpus_done(max_cpus);
}
-static inline int __cpu_up(unsigned int cpu)
+static inline int __cpu_up(unsigned int cpu, struct task_struct *tidle)
{
- return smp_ops.cpu_up(cpu);
+ return smp_ops.cpu_up(cpu, tidle);
}
static inline int __cpu_disable(void)
@@ -128,12 +93,13 @@ static inline void __cpu_die(unsigned int cpu)
smp_ops.cpu_die(cpu);
}
-static inline void play_dead(void)
+static inline void __noreturn play_dead(void)
{
smp_ops.play_dead();
+ BUG();
}
-static inline void smp_send_reschedule(int cpu)
+static inline void arch_smp_send_reschedule(int cpu)
{
smp_ops.smp_send_reschedule(cpu);
}
@@ -150,27 +116,61 @@ static inline void arch_send_call_function_ipi_mask(const struct cpumask *mask)
void cpu_disable_common(void);
void native_smp_prepare_boot_cpu(void);
+void smp_prepare_cpus_common(void);
void native_smp_prepare_cpus(unsigned int max_cpus);
+void calculate_max_logical_packages(void);
void native_smp_cpus_done(unsigned int max_cpus);
-int native_cpu_up(unsigned int cpunum);
+int common_cpu_up(unsigned int cpunum, struct task_struct *tidle);
+int native_cpu_up(unsigned int cpunum, struct task_struct *tidle);
int native_cpu_disable(void);
+int common_cpu_die(unsigned int cpu);
void native_cpu_die(unsigned int cpu);
+void __noreturn hlt_play_dead(void);
void native_play_dead(void);
void play_dead_common(void);
void wbinvd_on_cpu(int cpu);
int wbinvd_on_all_cpus(void);
+void cond_wakeup_cpu0(void);
+void native_smp_send_reschedule(int cpu);
void native_send_call_func_ipi(const struct cpumask *mask);
void native_send_call_func_single_ipi(int cpu);
+void x86_idle_thread_init(unsigned int cpu, struct task_struct *idle);
+void smp_store_boot_cpu_info(void);
void smp_store_cpu_info(int id);
+
+asmlinkage __visible void smp_reboot_interrupt(void);
+__visible void smp_reschedule_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_interrupt(struct pt_regs *regs);
+__visible void smp_call_function_single_interrupt(struct pt_regs *r);
+
#define cpu_physical_id(cpu) per_cpu(x86_cpu_to_apicid, cpu)
+#define cpu_acpi_id(cpu) per_cpu(x86_cpu_to_acpiid, cpu)
+
+/*
+ * This function is needed by all SMP systems. It must _always_ be valid
+ * from the initial startup.
+ */
+#define raw_smp_processor_id() this_cpu_read(pcpu_hot.cpu_number)
+#define __smp_processor_id() __this_cpu_read(pcpu_hot.cpu_number)
-/* We don't mark CPUs online until __cpu_up(), so we need another measure */
-static inline int num_booting_cpus(void)
+#ifdef CONFIG_X86_32
+extern int safe_smp_processor_id(void);
+#else
+# define safe_smp_processor_id() smp_processor_id()
+#endif
+
+static inline struct cpumask *cpu_llc_shared_mask(int cpu)
+{
+ return per_cpu(cpu_llc_shared_map, cpu);
+}
+
+static inline struct cpumask *cpu_l2c_shared_mask(int cpu)
{
- return cpumask_weight(cpu_callout_mask);
+ return per_cpu(cpu_l2c_shared_map, cpu);
}
+
#else /* !CONFIG_SMP */
#define wbinvd_on_cpu(cpu) wbinvd()
static inline int wbinvd_on_all_cpus(void)
@@ -178,52 +178,30 @@ static inline int wbinvd_on_all_cpus(void)
wbinvd();
return 0;
}
-#endif /* CONFIG_SMP */
-
-extern unsigned disabled_cpus __cpuinitdata;
-
-#ifdef CONFIG_X86_32_SMP
-/*
- * This function is needed by all SMP systems. It must _always_ be valid
- * from the initial startup. We map APIC_BASE very early in page_setup(),
- * so this is correct in the x86 case.
- */
-#define raw_smp_processor_id() (percpu_read(cpu_number))
-extern int safe_smp_processor_id(void);
-
-#elif defined(CONFIG_X86_64_SMP)
-#define raw_smp_processor_id() (percpu_read(cpu_number))
-
-#define stack_smp_processor_id() \
-({ \
- struct thread_info *ti; \
- __asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK)); \
- ti->cpu; \
-})
-#define safe_smp_processor_id() smp_processor_id()
-
-#endif
-
-#ifdef CONFIG_X86_LOCAL_APIC
-#ifndef CONFIG_X86_64
-static inline int logical_smp_processor_id(void)
+static inline struct cpumask *cpu_llc_shared_mask(int cpu)
{
- /* we don't want to mark this access volatile - bad code generation */
- return GET_APIC_LOGICAL_ID(apic_read(APIC_LDR));
+ return (struct cpumask *)cpumask_of(0);
}
+#endif /* CONFIG_SMP */
-#endif
+extern unsigned disabled_cpus;
+#ifdef CONFIG_X86_LOCAL_APIC
extern int hard_smp_processor_id(void);
#else /* CONFIG_X86_LOCAL_APIC */
+#define hard_smp_processor_id() 0
+#endif /* CONFIG_X86_LOCAL_APIC */
-# ifndef CONFIG_SMP
-# define hard_smp_processor_id() 0
-# endif
+#ifdef CONFIG_DEBUG_NMI_SELFTEST
+extern void nmi_selftest(void);
+#else
+#define nmi_selftest() do { } while (0)
+#endif
-#endif /* CONFIG_X86_LOCAL_APIC */
+extern unsigned int smpboot_control;
+
+#endif /* !__ASSEMBLY__ */
-#endif /* __ASSEMBLY__ */
#endif /* _ASM_X86_SMP_H */
diff --git a/arch/x86/include/asm/smpboot_hooks.h b/arch/x86/include/asm/smpboot_hooks.h
deleted file mode 100644
index 725b77831993..000000000000
--- a/arch/x86/include/asm/smpboot_hooks.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/* two abstractions specific to kernel/smpboot.c, mainly to cater to visws
- * which needs to alter them. */
-
-static inline void smpboot_clear_io_apic_irqs(void)
-{
-#ifdef CONFIG_X86_IO_APIC
- io_apic_irqs = 0;
-#endif
-}
-
-static inline void smpboot_setup_warm_reset_vector(unsigned long start_eip)
-{
- CMOS_WRITE(0xa, 0xf);
- local_flush_tlb();
- pr_debug("1.\n");
- *((volatile unsigned short *)phys_to_virt(apic->trampoline_phys_high)) =
- start_eip >> 4;
- pr_debug("2.\n");
- *((volatile unsigned short *)phys_to_virt(apic->trampoline_phys_low)) =
- start_eip & 0xf;
- pr_debug("3.\n");
-}
-
-static inline void smpboot_restore_warm_reset_vector(void)
-{
- /*
- * Install writable page 0 entry to set BIOS data area.
- */
- local_flush_tlb();
-
- /*
- * Paranoid: Set warm reset code and vector here back
- * to default values.
- */
- CMOS_WRITE(0, 0xf);
-
- *((volatile u32 *)phys_to_virt(apic->trampoline_phys_low)) = 0;
-}
-
-static inline void __init smpboot_setup_io_apic(void)
-{
-#ifdef CONFIG_X86_IO_APIC
- /*
- * Here we can be sure that there is an IO-APIC in the system. Let's
- * go and set it up:
- */
- if (!skip_ioapic_setup && nr_ioapics)
- setup_IO_APIC();
- else {
- nr_ioapics = 0;
- }
-#endif
-}
-
-static inline void smpboot_clear_io_apic(void)
-{
-#ifdef CONFIG_X86_IO_APIC
- nr_ioapics = 0;
-#endif
-}
diff --git a/arch/x86/include/asm/socket.h b/arch/x86/include/asm/socket.h
deleted file mode 100644
index 6b71384b9d8b..000000000000
--- a/arch/x86/include/asm/socket.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/socket.h>
diff --git a/arch/x86/include/asm/sockios.h b/arch/x86/include/asm/sockios.h
deleted file mode 100644
index def6d4746ee7..000000000000
--- a/arch/x86/include/asm/sockios.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/sockios.h>
diff --git a/arch/x86/include/asm/softirq_stack.h b/arch/x86/include/asm/softirq_stack.h
new file mode 100644
index 000000000000..889d53d6a0e1
--- /dev/null
+++ b/arch/x86/include/asm/softirq_stack.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SOFTIRQ_STACK_H
+#define _ASM_X86_SOFTIRQ_STACK_H
+
+#ifdef CONFIG_X86_64
+# include <asm/irq_stack.h>
+#else
+# include <asm-generic/softirq_stack.h>
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/sparsemem.h b/arch/x86/include/asm/sparsemem.h
index 4517d6b93188..64df897c0ee3 100644
--- a/arch/x86/include/asm/sparsemem.h
+++ b/arch/x86/include/asm/sparsemem.h
@@ -1,6 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SPARSEMEM_H
#define _ASM_X86_SPARSEMEM_H
+#include <linux/types.h>
+
#ifdef CONFIG_SPARSEMEM
/*
* generic non-linear memory support:
@@ -9,26 +12,32 @@
* field of the struct page
*
* SECTION_SIZE_BITS 2^n: size of each section
- * MAX_PHYSADDR_BITS 2^n: max size of physical address space
- * MAX_PHYSMEM_BITS 2^n: how much memory we can have in that space
+ * MAX_PHYSMEM_BITS 2^n: max size of physical address space
*
*/
#ifdef CONFIG_X86_32
# ifdef CONFIG_X86_PAE
# define SECTION_SIZE_BITS 29
-# define MAX_PHYSADDR_BITS 36
# define MAX_PHYSMEM_BITS 36
# else
# define SECTION_SIZE_BITS 26
-# define MAX_PHYSADDR_BITS 32
# define MAX_PHYSMEM_BITS 32
# endif
#else /* CONFIG_X86_32 */
# define SECTION_SIZE_BITS 27 /* matt - 128 is convenient right now */
-# define MAX_PHYSADDR_BITS 44
-# define MAX_PHYSMEM_BITS 46
+# define MAX_PHYSMEM_BITS (pgtable_l5_enabled() ? 52 : 46)
#endif
#endif /* CONFIG_SPARSEMEM */
+
+#ifndef __ASSEMBLY__
+#ifdef CONFIG_NUMA_KEEP_MEMINFO
+extern int phys_to_target_node(phys_addr_t start);
+#define phys_to_target_node phys_to_target_node
+extern int memory_add_physaddr_to_nid(u64 start);
+#define memory_add_physaddr_to_nid memory_add_physaddr_to_nid
+#endif
+#endif /* __ASSEMBLY__ */
+
#endif /* _ASM_X86_SPARSEMEM_H */
diff --git a/arch/x86/include/asm/spec-ctrl.h b/arch/x86/include/asm/spec-ctrl.h
new file mode 100644
index 000000000000..cb0386fc4dc3
--- /dev/null
+++ b/arch/x86/include/asm/spec-ctrl.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SPECCTRL_H_
+#define _ASM_X86_SPECCTRL_H_
+
+#include <linux/thread_info.h>
+#include <asm/nospec-branch.h>
+
+/*
+ * On VMENTER we must preserve whatever view of the SPEC_CTRL MSR
+ * the guest has, while on VMEXIT we restore the host view. This
+ * would be easier if SPEC_CTRL were architecturally maskable or
+ * shadowable for guests but this is not (currently) the case.
+ * Takes the guest view of SPEC_CTRL MSR as a parameter and also
+ * the guest's version of VIRT_SPEC_CTRL, if emulated.
+ */
+extern void x86_virt_spec_ctrl(u64 guest_virt_spec_ctrl, bool guest);
+
+/**
+ * x86_spec_ctrl_set_guest - Set speculation control registers for the guest
+ * @guest_spec_ctrl: The guest content of MSR_SPEC_CTRL
+ * @guest_virt_spec_ctrl: The guest controlled bits of MSR_VIRT_SPEC_CTRL
+ * (may get translated to MSR_AMD64_LS_CFG bits)
+ *
+ * Avoids writing to the MSR if the content/bits are the same
+ */
+static inline
+void x86_spec_ctrl_set_guest(u64 guest_virt_spec_ctrl)
+{
+ x86_virt_spec_ctrl(guest_virt_spec_ctrl, true);
+}
+
+/**
+ * x86_spec_ctrl_restore_host - Restore host speculation control registers
+ * @guest_spec_ctrl: The guest content of MSR_SPEC_CTRL
+ * @guest_virt_spec_ctrl: The guest controlled bits of MSR_VIRT_SPEC_CTRL
+ * (may get translated to MSR_AMD64_LS_CFG bits)
+ *
+ * Avoids writing to the MSR if the content/bits are the same
+ */
+static inline
+void x86_spec_ctrl_restore_host(u64 guest_virt_spec_ctrl)
+{
+ x86_virt_spec_ctrl(guest_virt_spec_ctrl, false);
+}
+
+/* AMD specific Speculative Store Bypass MSR data */
+extern u64 x86_amd_ls_cfg_base;
+extern u64 x86_amd_ls_cfg_ssbd_mask;
+
+static inline u64 ssbd_tif_to_spec_ctrl(u64 tifn)
+{
+ BUILD_BUG_ON(TIF_SSBD < SPEC_CTRL_SSBD_SHIFT);
+ return (tifn & _TIF_SSBD) >> (TIF_SSBD - SPEC_CTRL_SSBD_SHIFT);
+}
+
+static inline u64 stibp_tif_to_spec_ctrl(u64 tifn)
+{
+ BUILD_BUG_ON(TIF_SPEC_IB < SPEC_CTRL_STIBP_SHIFT);
+ return (tifn & _TIF_SPEC_IB) >> (TIF_SPEC_IB - SPEC_CTRL_STIBP_SHIFT);
+}
+
+static inline unsigned long ssbd_spec_ctrl_to_tif(u64 spec_ctrl)
+{
+ BUILD_BUG_ON(TIF_SSBD < SPEC_CTRL_SSBD_SHIFT);
+ return (spec_ctrl & SPEC_CTRL_SSBD) << (TIF_SSBD - SPEC_CTRL_SSBD_SHIFT);
+}
+
+static inline unsigned long stibp_spec_ctrl_to_tif(u64 spec_ctrl)
+{
+ BUILD_BUG_ON(TIF_SPEC_IB < SPEC_CTRL_STIBP_SHIFT);
+ return (spec_ctrl & SPEC_CTRL_STIBP) << (TIF_SPEC_IB - SPEC_CTRL_STIBP_SHIFT);
+}
+
+static inline u64 ssbd_tif_to_amd_ls_cfg(u64 tifn)
+{
+ return (tifn & _TIF_SSBD) ? x86_amd_ls_cfg_ssbd_mask : 0ULL;
+}
+
+#ifdef CONFIG_SMP
+extern void speculative_store_bypass_ht_init(void);
+#else
+static inline void speculative_store_bypass_ht_init(void) { }
+#endif
+
+extern void speculation_ctrl_update(unsigned long tif);
+extern void speculation_ctrl_update_current(void);
+
+#endif
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
new file mode 100644
index 000000000000..de48d1389936
--- /dev/null
+++ b/arch/x86/include/asm/special_insns.h
@@ -0,0 +1,288 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SPECIAL_INSNS_H
+#define _ASM_X86_SPECIAL_INSNS_H
+
+
+#ifdef __KERNEL__
+
+#include <asm/nops.h>
+#include <asm/processor-flags.h>
+#include <linux/irqflags.h>
+#include <linux/jump_label.h>
+
+/*
+ * The compiler should not reorder volatile asm statements with respect to each
+ * other: they should execute in program order. However GCC 4.9.x and 5.x have
+ * a bug (which was fixed in 8.1, 7.3 and 6.5) where they might reorder
+ * volatile asm. The write functions are not affected since they have memory
+ * clobbers preventing reordering. To prevent reads from being reordered with
+ * respect to writes, use a dummy memory operand.
+ */
+
+#define __FORCE_ORDER "m"(*(unsigned int *)0x1000UL)
+
+void native_write_cr0(unsigned long val);
+
+static inline unsigned long native_read_cr0(void)
+{
+ unsigned long val;
+ asm volatile("mov %%cr0,%0\n\t" : "=r" (val) : __FORCE_ORDER);
+ return val;
+}
+
+static __always_inline unsigned long native_read_cr2(void)
+{
+ unsigned long val;
+ asm volatile("mov %%cr2,%0\n\t" : "=r" (val) : __FORCE_ORDER);
+ return val;
+}
+
+static __always_inline void native_write_cr2(unsigned long val)
+{
+ asm volatile("mov %0,%%cr2": : "r" (val) : "memory");
+}
+
+static inline unsigned long __native_read_cr3(void)
+{
+ unsigned long val;
+ asm volatile("mov %%cr3,%0\n\t" : "=r" (val) : __FORCE_ORDER);
+ return val;
+}
+
+static inline void native_write_cr3(unsigned long val)
+{
+ asm volatile("mov %0,%%cr3": : "r" (val) : "memory");
+}
+
+static inline unsigned long native_read_cr4(void)
+{
+ unsigned long val;
+#ifdef CONFIG_X86_32
+ /*
+ * This could fault if CR4 does not exist. Non-existent CR4
+ * is functionally equivalent to CR4 == 0. Keep it simple and pretend
+ * that CR4 == 0 on CPUs that don't have CR4.
+ */
+ asm volatile("1: mov %%cr4, %0\n"
+ "2:\n"
+ _ASM_EXTABLE(1b, 2b)
+ : "=r" (val) : "0" (0), __FORCE_ORDER);
+#else
+ /* CR4 always exists on x86_64. */
+ asm volatile("mov %%cr4,%0\n\t" : "=r" (val) : __FORCE_ORDER);
+#endif
+ return val;
+}
+
+void native_write_cr4(unsigned long val);
+
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+static inline u32 rdpkru(void)
+{
+ u32 ecx = 0;
+ u32 edx, pkru;
+
+ /*
+ * "rdpkru" instruction. Places PKRU contents in to EAX,
+ * clears EDX and requires that ecx=0.
+ */
+ asm volatile(".byte 0x0f,0x01,0xee\n\t"
+ : "=a" (pkru), "=d" (edx)
+ : "c" (ecx));
+ return pkru;
+}
+
+static inline void wrpkru(u32 pkru)
+{
+ u32 ecx = 0, edx = 0;
+
+ /*
+ * "wrpkru" instruction. Loads contents in EAX to PKRU,
+ * requires that ecx = edx = 0.
+ */
+ asm volatile(".byte 0x0f,0x01,0xef\n\t"
+ : : "a" (pkru), "c"(ecx), "d"(edx));
+}
+
+#else
+static inline u32 rdpkru(void)
+{
+ return 0;
+}
+
+static inline void wrpkru(u32 pkru)
+{
+}
+#endif
+
+static __always_inline void native_wbinvd(void)
+{
+ asm volatile("wbinvd": : :"memory");
+}
+
+static inline unsigned long __read_cr4(void)
+{
+ return native_read_cr4();
+}
+
+#ifdef CONFIG_PARAVIRT_XXL
+#include <asm/paravirt.h>
+#else
+
+static inline unsigned long read_cr0(void)
+{
+ return native_read_cr0();
+}
+
+static inline void write_cr0(unsigned long x)
+{
+ native_write_cr0(x);
+}
+
+static __always_inline unsigned long read_cr2(void)
+{
+ return native_read_cr2();
+}
+
+static __always_inline void write_cr2(unsigned long x)
+{
+ native_write_cr2(x);
+}
+
+/*
+ * Careful! CR3 contains more than just an address. You probably want
+ * read_cr3_pa() instead.
+ */
+static inline unsigned long __read_cr3(void)
+{
+ return __native_read_cr3();
+}
+
+static inline void write_cr3(unsigned long x)
+{
+ native_write_cr3(x);
+}
+
+static inline void __write_cr4(unsigned long x)
+{
+ native_write_cr4(x);
+}
+
+static __always_inline void wbinvd(void)
+{
+ native_wbinvd();
+}
+
+#endif /* CONFIG_PARAVIRT_XXL */
+
+static __always_inline void clflush(volatile void *__p)
+{
+ asm volatile("clflush %0" : "+m" (*(volatile char __force *)__p));
+}
+
+static inline void clflushopt(volatile void *__p)
+{
+ alternative_io(".byte 0x3e; clflush %P0",
+ ".byte 0x66; clflush %P0",
+ X86_FEATURE_CLFLUSHOPT,
+ "+m" (*(volatile char __force *)__p));
+}
+
+static inline void clwb(volatile void *__p)
+{
+ volatile struct { char x[64]; } *p = __p;
+
+ asm volatile(ALTERNATIVE_2(
+ ".byte 0x3e; clflush (%[pax])",
+ ".byte 0x66; clflush (%[pax])", /* clflushopt (%%rax) */
+ X86_FEATURE_CLFLUSHOPT,
+ ".byte 0x66, 0x0f, 0xae, 0x30", /* clwb (%%rax) */
+ X86_FEATURE_CLWB)
+ : [p] "+m" (*p)
+ : [pax] "a" (p));
+}
+
+#define nop() asm volatile ("nop")
+
+static inline void serialize(void)
+{
+ /* Instruction opcode for SERIALIZE; supported in binutils >= 2.35. */
+ asm volatile(".byte 0xf, 0x1, 0xe8" ::: "memory");
+}
+
+/* The dst parameter must be 64-bytes aligned */
+static inline void movdir64b(void __iomem *dst, const void *src)
+{
+ const struct { char _[64]; } *__src = src;
+ struct { char _[64]; } __iomem *__dst = dst;
+
+ /*
+ * MOVDIR64B %(rdx), rax.
+ *
+ * Both __src and __dst must be memory constraints in order to tell the
+ * compiler that no other memory accesses should be reordered around
+ * this one.
+ *
+ * Also, both must be supplied as lvalues because this tells
+ * the compiler what the object is (its size) the instruction accesses.
+ * I.e., not the pointers but what they point to, thus the deref'ing '*'.
+ */
+ asm volatile(".byte 0x66, 0x0f, 0x38, 0xf8, 0x02"
+ : "+m" (*__dst)
+ : "m" (*__src), "a" (__dst), "d" (__src));
+}
+
+/**
+ * enqcmds - Enqueue a command in supervisor (CPL0) mode
+ * @dst: destination, in MMIO space (must be 512-bit aligned)
+ * @src: 512 bits memory operand
+ *
+ * The ENQCMDS instruction allows software to write a 512-bit command to
+ * a 512-bit-aligned special MMIO region that supports the instruction.
+ * A return status is loaded into the ZF flag in the RFLAGS register.
+ * ZF = 0 equates to success, and ZF = 1 indicates retry or error.
+ *
+ * This function issues the ENQCMDS instruction to submit data from
+ * kernel space to MMIO space, in a unit of 512 bits. Order of data access
+ * is not guaranteed, nor is a memory barrier performed afterwards. It
+ * returns 0 on success and -EAGAIN on failure.
+ *
+ * Warning: Do not use this helper unless your driver has checked that the
+ * ENQCMDS instruction is supported on the platform and the device accepts
+ * ENQCMDS.
+ */
+static inline int enqcmds(void __iomem *dst, const void *src)
+{
+ const struct { char _[64]; } *__src = src;
+ struct { char _[64]; } __iomem *__dst = dst;
+ bool zf;
+
+ /*
+ * ENQCMDS %(rdx), rax
+ *
+ * See movdir64b()'s comment on operand specification.
+ */
+ asm volatile(".byte 0xf3, 0x0f, 0x38, 0xf8, 0x02, 0x66, 0x90"
+ CC_SET(z)
+ : CC_OUT(z) (zf), "+m" (*__dst)
+ : "m" (*__src), "a" (__dst), "d" (__src));
+
+ /* Submission failure is indicated via EFLAGS.ZF=1 */
+ if (zf)
+ return -EAGAIN;
+
+ return 0;
+}
+
+static __always_inline void tile_release(void)
+{
+ /*
+ * Instruction opcode for TILERELEASE; supported in binutils
+ * version >= 2.36.
+ */
+ asm volatile(".byte 0xc4, 0xe2, 0x78, 0x49, 0xc0");
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_X86_SPECIAL_INSNS_H */
diff --git a/arch/x86/include/asm/spinlock.h b/arch/x86/include/asm/spinlock.h
index 3089f70c0c52..5b6bc7016c22 100644
--- a/arch/x86/include/asm/spinlock.h
+++ b/arch/x86/include/asm/spinlock.h
@@ -1,218 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SPINLOCK_H
#define _ASM_X86_SPINLOCK_H
-#include <asm/atomic.h>
-#include <asm/rwlock.h>
+#include <linux/jump_label.h>
+#include <linux/atomic.h>
#include <asm/page.h>
#include <asm/processor.h>
#include <linux/compiler.h>
#include <asm/paravirt.h>
+#include <asm/bitops.h>
+
/*
* Your basic SMP spinlocks, allowing only a single CPU anywhere
*
* Simple spin lock operations. There are two variants, one clears IRQ's
* on the local processor, one does not.
*
- * These are fair FIFO ticket locks, which are currently limited to 256
- * CPUs.
+ * These are fair FIFO ticket locks, which support up to 2^16 CPUs.
*
* (the type definitions are in asm/spinlock_types.h)
*/
-#ifdef CONFIG_X86_32
-# define LOCK_PTR_REG "a"
-# define REG_PTR_MODE "k"
-#else
-# define LOCK_PTR_REG "D"
-# define REG_PTR_MODE "q"
-#endif
+/* How long a lock should spin before we consider blocking */
+#define SPIN_THRESHOLD (1 << 15)
-#if defined(CONFIG_X86_32) && \
- (defined(CONFIG_X86_OOSTORE) || defined(CONFIG_X86_PPRO_FENCE))
-/*
- * On PPro SMP or if we are using OOSTORE, we use a locked operation to unlock
- * (PPro errata 66, 92)
- */
-# define UNLOCK_LOCK_PREFIX LOCK_PREFIX
-#else
-# define UNLOCK_LOCK_PREFIX
-#endif
-
-/*
- * Ticket locks are conceptually two parts, one indicating the current head of
- * the queue, and the other indicating the current tail. The lock is acquired
- * by atomically noting the tail and incrementing it by one (thus adding
- * ourself to the queue and noting our position), then waiting until the head
- * becomes equal to the the initial value of the tail.
- *
- * We use an xadd covering *both* parts of the lock, to increment the tail and
- * also load the position of the head, which takes care of memory ordering
- * issues and should be optimal for the uncontended case. Note the tail must be
- * in the high part, because a wide xadd increment of the low part would carry
- * up and contaminate the high part.
- *
- * With fewer than 2^8 possible CPUs, we can use x86's partial registers to
- * save some instructions and make the code more elegant. There really isn't
- * much between them in performance though, especially as locks are out of line.
- */
-#if (NR_CPUS < 256)
-#define TICKET_SHIFT 8
-
-static __always_inline void __ticket_spin_lock(arch_spinlock_t *lock)
-{
- short inc = 0x0100;
-
- asm volatile (
- LOCK_PREFIX "xaddw %w0, %1\n"
- "1:\t"
- "cmpb %h0, %b0\n\t"
- "je 2f\n\t"
- "rep ; nop\n\t"
- "movb %1, %b0\n\t"
- /* don't need lfence here, because loads are in-order */
- "jmp 1b\n"
- "2:"
- : "+Q" (inc), "+m" (lock->slock)
- :
- : "memory", "cc");
-}
-
-static __always_inline int __ticket_spin_trylock(arch_spinlock_t *lock)
-{
- int tmp, new;
-
- asm volatile("movzwl %2, %0\n\t"
- "cmpb %h0,%b0\n\t"
- "leal 0x100(%" REG_PTR_MODE "0), %1\n\t"
- "jne 1f\n\t"
- LOCK_PREFIX "cmpxchgw %w1,%2\n\t"
- "1:"
- "sete %b1\n\t"
- "movzbl %b1,%0\n\t"
- : "=&a" (tmp), "=&q" (new), "+m" (lock->slock)
- :
- : "memory", "cc");
-
- return tmp;
-}
-
-static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
-{
- asm volatile(UNLOCK_LOCK_PREFIX "incb %0"
- : "+m" (lock->slock)
- :
- : "memory", "cc");
-}
-#else
-#define TICKET_SHIFT 16
-
-static __always_inline void __ticket_spin_lock(arch_spinlock_t *lock)
-{
- int inc = 0x00010000;
- int tmp;
-
- asm volatile(LOCK_PREFIX "xaddl %0, %1\n"
- "movzwl %w0, %2\n\t"
- "shrl $16, %0\n\t"
- "1:\t"
- "cmpl %0, %2\n\t"
- "je 2f\n\t"
- "rep ; nop\n\t"
- "movzwl %1, %2\n\t"
- /* don't need lfence here, because loads are in-order */
- "jmp 1b\n"
- "2:"
- : "+r" (inc), "+m" (lock->slock), "=&r" (tmp)
- :
- : "memory", "cc");
-}
-
-static __always_inline int __ticket_spin_trylock(arch_spinlock_t *lock)
-{
- int tmp;
- int new;
-
- asm volatile("movl %2,%0\n\t"
- "movl %0,%1\n\t"
- "roll $16, %0\n\t"
- "cmpl %0,%1\n\t"
- "leal 0x00010000(%" REG_PTR_MODE "0), %1\n\t"
- "jne 1f\n\t"
- LOCK_PREFIX "cmpxchgl %1,%2\n\t"
- "1:"
- "sete %b1\n\t"
- "movzbl %b1,%0\n\t"
- : "=&a" (tmp), "=&q" (new), "+m" (lock->slock)
- :
- : "memory", "cc");
-
- return tmp;
-}
-
-static __always_inline void __ticket_spin_unlock(arch_spinlock_t *lock)
-{
- asm volatile(UNLOCK_LOCK_PREFIX "incw %0"
- : "+m" (lock->slock)
- :
- : "memory", "cc");
-}
-#endif
-
-static inline int __ticket_spin_is_locked(arch_spinlock_t *lock)
-{
- int tmp = ACCESS_ONCE(lock->slock);
-
- return !!(((tmp >> TICKET_SHIFT) ^ tmp) & ((1 << TICKET_SHIFT) - 1));
-}
-
-static inline int __ticket_spin_is_contended(arch_spinlock_t *lock)
-{
- int tmp = ACCESS_ONCE(lock->slock);
-
- return (((tmp >> TICKET_SHIFT) - tmp) & ((1 << TICKET_SHIFT) - 1)) > 1;
-}
-
-#ifndef CONFIG_PARAVIRT_SPINLOCKS
-
-static inline int arch_spin_is_locked(arch_spinlock_t *lock)
-{
- return __ticket_spin_is_locked(lock);
-}
-
-static inline int arch_spin_is_contended(arch_spinlock_t *lock)
-{
- return __ticket_spin_is_contended(lock);
-}
-#define arch_spin_is_contended arch_spin_is_contended
-
-static __always_inline void arch_spin_lock(arch_spinlock_t *lock)
-{
- __ticket_spin_lock(lock);
-}
-
-static __always_inline int arch_spin_trylock(arch_spinlock_t *lock)
-{
- return __ticket_spin_trylock(lock);
-}
-
-static __always_inline void arch_spin_unlock(arch_spinlock_t *lock)
-{
- __ticket_spin_unlock(lock);
-}
-
-static __always_inline void arch_spin_lock_flags(arch_spinlock_t *lock,
- unsigned long flags)
-{
- arch_spin_lock(lock);
-}
-
-#endif /* CONFIG_PARAVIRT_SPINLOCKS */
-
-static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
-{
- while (arch_spin_is_locked(lock))
- cpu_relax();
-}
+#include <asm/qspinlock.h>
/*
* Read-write spinlocks, allowing multiple readers
@@ -224,86 +36,10 @@ static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
* irq-safe write-lock, but readers can get non-irqsafe
* read-locks.
*
- * On x86, we implement read-write locks as a 32-bit counter
- * with the high bit (sign) being the "contended" bit.
+ * On x86, we implement read-write locks using the generic qrwlock with
+ * x86 specific optimization.
*/
-/**
- * read_can_lock - would read_trylock() succeed?
- * @lock: the rwlock in question.
- */
-static inline int arch_read_can_lock(arch_rwlock_t *lock)
-{
- return (int)(lock)->lock > 0;
-}
-
-/**
- * write_can_lock - would write_trylock() succeed?
- * @lock: the rwlock in question.
- */
-static inline int arch_write_can_lock(arch_rwlock_t *lock)
-{
- return (lock)->lock == RW_LOCK_BIAS;
-}
-
-static inline void arch_read_lock(arch_rwlock_t *rw)
-{
- asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t"
- "jns 1f\n"
- "call __read_lock_failed\n\t"
- "1:\n"
- ::LOCK_PTR_REG (rw) : "memory");
-}
-
-static inline void arch_write_lock(arch_rwlock_t *rw)
-{
- asm volatile(LOCK_PREFIX " subl %1,(%0)\n\t"
- "jz 1f\n"
- "call __write_lock_failed\n\t"
- "1:\n"
- ::LOCK_PTR_REG (rw), "i" (RW_LOCK_BIAS) : "memory");
-}
-
-static inline int arch_read_trylock(arch_rwlock_t *lock)
-{
- atomic_t *count = (atomic_t *)lock;
-
- if (atomic_dec_return(count) >= 0)
- return 1;
- atomic_inc(count);
- return 0;
-}
-
-static inline int arch_write_trylock(arch_rwlock_t *lock)
-{
- atomic_t *count = (atomic_t *)lock;
-
- if (atomic_sub_and_test(RW_LOCK_BIAS, count))
- return 1;
- atomic_add(RW_LOCK_BIAS, count);
- return 0;
-}
-
-static inline void arch_read_unlock(arch_rwlock_t *rw)
-{
- asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory");
-}
-
-static inline void arch_write_unlock(arch_rwlock_t *rw)
-{
- asm volatile(LOCK_PREFIX "addl %1, %0"
- : "+m" (rw->lock) : "i" (RW_LOCK_BIAS) : "memory");
-}
-
-#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
-#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
-
-#define arch_spin_relax(lock) cpu_relax()
-#define arch_read_relax(lock) cpu_relax()
-#define arch_write_relax(lock) cpu_relax()
-
-/* The {read|write|spin}_lock() on x86 are full memory barriers. */
-static inline void smp_mb__after_lock(void) { }
-#define ARCH_HAS_SMP_MB_AFTER_LOCK
+#include <asm/qrwlock.h>
#endif /* _ASM_X86_SPINLOCK_H */
diff --git a/arch/x86/include/asm/spinlock_types.h b/arch/x86/include/asm/spinlock_types.h
index dcb48b2edc11..323db6c5852a 100644
--- a/arch/x86/include/asm/spinlock_types.h
+++ b/arch/x86/include/asm/spinlock_types.h
@@ -1,20 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SPINLOCK_TYPES_H
#define _ASM_X86_SPINLOCK_TYPES_H
-#ifndef __LINUX_SPINLOCK_TYPES_H
-# error "please don't include this file directly"
-#endif
-
-typedef struct arch_spinlock {
- unsigned int slock;
-} arch_spinlock_t;
-
-#define __ARCH_SPIN_LOCK_UNLOCKED { 0 }
-
-typedef struct {
- unsigned int lock;
-} arch_rwlock_t;
-
-#define __ARCH_RW_LOCK_UNLOCKED { RW_LOCK_BIAS }
+#include <linux/types.h>
+#include <asm-generic/qspinlock_types.h>
+#include <asm-generic/qrwlock_types.h>
#endif /* _ASM_X86_SPINLOCK_TYPES_H */
diff --git a/arch/x86/include/asm/srat.h b/arch/x86/include/asm/srat.h
deleted file mode 100644
index b508d639d1a7..000000000000
--- a/arch/x86/include/asm/srat.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Some of the code in this file has been gleaned from the 64 bit
- * discontigmem support code base.
- *
- * Copyright (C) 2002, IBM Corp.
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to Pat Gaughen <gone@us.ibm.com>
- */
-
-#ifndef _ASM_X86_SRAT_H
-#define _ASM_X86_SRAT_H
-
-#ifdef CONFIG_ACPI_NUMA
-extern int get_memcfg_from_srat(void);
-#else
-static inline int get_memcfg_from_srat(void)
-{
- return 0;
-}
-#endif
-
-#endif /* _ASM_X86_SRAT_H */
diff --git a/arch/x86/include/asm/sta2x11.h b/arch/x86/include/asm/sta2x11.h
new file mode 100644
index 000000000000..e0975e9c4f47
--- /dev/null
+++ b/arch/x86/include/asm/sta2x11.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Header file for STMicroelectronics ConneXt (STA2X11) IOHub
+ */
+#ifndef __ASM_STA2X11_H
+#define __ASM_STA2X11_H
+
+#include <linux/pci.h>
+
+/* This needs to be called from the MFD to configure its sub-devices */
+struct sta2x11_instance *sta2x11_get_instance(struct pci_dev *pdev);
+
+#endif /* __ASM_STA2X11_H */
diff --git a/arch/x86/include/asm/stackprotector.h b/arch/x86/include/asm/stackprotector.h
index 157517763565..00473a650f51 100644
--- a/arch/x86/include/asm/stackprotector.h
+++ b/arch/x86/include/asm/stackprotector.h
@@ -1,122 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* GCC stack protector support.
*
* Stack protector works by putting predefined pattern at the start of
* the stack frame and verifying that it hasn't been overwritten when
* returning from the function. The pattern is called stack canary
- * and unfortunately gcc requires it to be at a fixed offset from %gs.
- * On x86_64, the offset is 40 bytes and on x86_32 20 bytes. x86_64
- * and x86_32 use segment registers differently and thus handles this
- * requirement differently.
+ * and unfortunately gcc historically required it to be at a fixed offset
+ * from the percpu segment base. On x86_64, the offset is 40 bytes.
*
- * On x86_64, %gs is shared by percpu area and stack canary. All
- * percpu symbols are zero based and %gs points to the base of percpu
- * area. The first occupant of the percpu area is always
- * irq_stack_union which contains stack_canary at offset 40. Userland
- * %gs is always saved and restored on kernel entry and exit using
- * swapgs, so stack protector doesn't add any complexity there.
+ * The same segment is shared by percpu area and stack canary. On
+ * x86_64, percpu symbols are zero based and %gs (64-bit) points to the
+ * base of percpu area. The first occupant of the percpu area is always
+ * fixed_percpu_data which contains stack_canary at the appropriate
+ * offset. On x86_32, the stack canary is just a regular percpu
+ * variable.
*
- * On x86_32, it's slightly more complicated. As in x86_64, %gs is
- * used for userland TLS. Unfortunately, some processors are much
- * slower at loading segment registers with different value when
- * entering and leaving the kernel, so the kernel uses %fs for percpu
- * area and manages %gs lazily so that %gs is switched only when
- * necessary, usually during task switch.
+ * Putting percpu data in %fs on 32-bit is a minor optimization compared to
+ * using %gs. Since 32-bit userspace normally has %fs == 0, we are likely
+ * to load 0 into %fs on exit to usermode, whereas with percpu data in
+ * %gs, we are likely to load a non-null %gs on return to user mode.
*
- * As gcc requires the stack canary at %gs:20, %gs can't be managed
- * lazily if stack protector is enabled, so the kernel saves and
- * restores userland %gs on kernel entry and exit. This behavior is
- * controlled by CONFIG_X86_32_LAZY_GS and accessors are defined in
- * system.h to hide the details.
+ * Once we are willing to require GCC 8.1 or better for 64-bit stackprotector
+ * support, we can remove some of this complexity.
*/
#ifndef _ASM_STACKPROTECTOR_H
#define _ASM_STACKPROTECTOR_H 1
-#ifdef CONFIG_CC_STACKPROTECTOR
+#ifdef CONFIG_STACKPROTECTOR
#include <asm/tsc.h>
#include <asm/processor.h>
#include <asm/percpu.h>
-#include <asm/system.h>
#include <asm/desc.h>
-#include <linux/random.h>
-/*
- * 24 byte read-only segment initializer for stack canary. Linker
- * can't handle the address bit shifting. Address will be set in
- * head_32 for boot CPU and setup_per_cpu_areas() for others.
- */
-#define GDT_STACK_CANARY_INIT \
- [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18),
+#include <linux/sched.h>
/*
* Initialize the stackprotector canary value.
*
- * NOTE: this must only be called from functions that never return,
+ * NOTE: this must only be called from functions that never return
* and it must always be inlined.
+ *
+ * In addition, it should be called from a compilation unit for which
+ * stack protector is disabled. Alternatively, the caller should not end
+ * with a function call which gets tail-call optimized as that would
+ * lead to checking a modified canary value.
*/
static __always_inline void boot_init_stack_canary(void)
{
- u64 canary;
- u64 tsc;
+ unsigned long canary = get_random_canary();
#ifdef CONFIG_X86_64
- BUILD_BUG_ON(offsetof(union irq_stack_union, stack_canary) != 40);
+ BUILD_BUG_ON(offsetof(struct fixed_percpu_data, stack_canary) != 40);
#endif
- /*
- * We both use the random pool and the current TSC as a source
- * of randomness. The TSC only matters for very early init,
- * there it already has some randomness on most systems. Later
- * on during the bootup the random pool has true entropy too.
- */
- get_random_bytes(&canary, sizeof(canary));
- tsc = __native_read_tsc();
- canary += tsc + (tsc << 32UL);
current->stack_canary = canary;
#ifdef CONFIG_X86_64
- percpu_write(irq_stack_union.stack_canary, canary);
+ this_cpu_write(fixed_percpu_data.stack_canary, canary);
#else
- percpu_write(stack_canary.canary, canary);
-#endif
-}
-
-static inline void setup_stack_canary_segment(int cpu)
-{
-#ifdef CONFIG_X86_32
- unsigned long canary = (unsigned long)&per_cpu(stack_canary, cpu);
- struct desc_struct *gdt_table = get_cpu_gdt_table(cpu);
- struct desc_struct desc;
-
- desc = gdt_table[GDT_ENTRY_STACK_CANARY];
- set_desc_base(&desc, canary);
- write_gdt_entry(gdt_table, GDT_ENTRY_STACK_CANARY, &desc, DESCTYPE_S);
+ this_cpu_write(__stack_chk_guard, canary);
#endif
}
-static inline void load_stack_canary_segment(void)
+static inline void cpu_init_stack_canary(int cpu, struct task_struct *idle)
{
-#ifdef CONFIG_X86_32
- asm("mov %0, %%gs" : : "r" (__KERNEL_STACK_CANARY) : "memory");
+#ifdef CONFIG_X86_64
+ per_cpu(fixed_percpu_data.stack_canary, cpu) = idle->stack_canary;
+#else
+ per_cpu(__stack_chk_guard, cpu) = idle->stack_canary;
#endif
}
-#else /* CC_STACKPROTECTOR */
-
-#define GDT_STACK_CANARY_INIT
+#else /* STACKPROTECTOR */
/* dummy boot_init_stack_canary() is defined in linux/stackprotector.h */
-static inline void setup_stack_canary_segment(int cpu)
+static inline void cpu_init_stack_canary(int cpu, struct task_struct *idle)
{ }
-static inline void load_stack_canary_segment(void)
-{
-#ifdef CONFIG_X86_32
- asm volatile ("mov %0, %%gs" : : "r" (0));
-#endif
-}
-
-#endif /* CC_STACKPROTECTOR */
+#endif /* STACKPROTECTOR */
#endif /* _ASM_STACKPROTECTOR_H */
diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h
index d7e89c83645d..3881b5333eb8 100644
--- a/arch/x86/include/asm/stacktrace.h
+++ b/arch/x86/include/asm/stacktrace.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright (C) 1991, 1992 Linus Torvalds
* Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs
@@ -9,90 +10,93 @@
#include <linux/uaccess.h>
#include <linux/ptrace.h>
-extern int kstack_depth_to_print;
-
-struct thread_info;
-struct stacktrace_ops;
-
-typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo,
- unsigned long *stack,
- unsigned long bp,
- const struct stacktrace_ops *ops,
- void *data,
- unsigned long *end,
- int *graph);
-
-extern unsigned long
-print_context_stack(struct thread_info *tinfo,
- unsigned long *stack, unsigned long bp,
- const struct stacktrace_ops *ops, void *data,
- unsigned long *end, int *graph);
-
-extern unsigned long
-print_context_stack_bp(struct thread_info *tinfo,
- unsigned long *stack, unsigned long bp,
- const struct stacktrace_ops *ops, void *data,
- unsigned long *end, int *graph);
-
-/* Generic stack tracer with callbacks */
-
-struct stacktrace_ops {
- void (*warning)(void *data, char *msg);
- /* msg must contain %s for the symbol */
- void (*warning_symbol)(void *data, char *msg, unsigned long symbol);
- void (*address)(void *data, unsigned long address, int reliable);
- /* On negative return stop dumping */
- int (*stack)(void *data, char *name);
- walk_stack_t walk_stack;
+#include <asm/cpu_entry_area.h>
+#include <asm/switch_to.h>
+
+enum stack_type {
+ STACK_TYPE_UNKNOWN,
+ STACK_TYPE_TASK,
+ STACK_TYPE_IRQ,
+ STACK_TYPE_SOFTIRQ,
+ STACK_TYPE_ENTRY,
+ STACK_TYPE_EXCEPTION,
+ STACK_TYPE_EXCEPTION_LAST = STACK_TYPE_EXCEPTION + N_EXCEPTION_STACKS-1,
};
-void dump_trace(struct task_struct *tsk, struct pt_regs *regs,
- unsigned long *stack, unsigned long bp,
- const struct stacktrace_ops *ops, void *data);
+struct stack_info {
+ enum stack_type type;
+ unsigned long *begin, *end, *next_sp;
+};
+
+bool in_task_stack(unsigned long *stack, struct task_struct *task,
+ struct stack_info *info);
+
+bool in_entry_stack(unsigned long *stack, struct stack_info *info);
+
+int get_stack_info(unsigned long *stack, struct task_struct *task,
+ struct stack_info *info, unsigned long *visit_mask);
+bool get_stack_info_noinstr(unsigned long *stack, struct task_struct *task,
+ struct stack_info *info);
+
+static __always_inline
+bool get_stack_guard_info(unsigned long *stack, struct stack_info *info)
+{
+ /* make sure it's not in the stack proper */
+ if (get_stack_info_noinstr(stack, current, info))
+ return false;
+ /* but if it is in the page below it, we hit a guard */
+ return get_stack_info_noinstr((void *)stack + PAGE_SIZE, current, info);
+}
+
+const char *stack_type_name(enum stack_type type);
+
+static inline bool on_stack(struct stack_info *info, void *addr, size_t len)
+{
+ void *begin = info->begin;
+ void *end = info->end;
+
+ return (info->type != STACK_TYPE_UNKNOWN &&
+ addr >= begin && addr < end &&
+ addr + len > begin && addr + len <= end);
+}
#ifdef CONFIG_X86_32
#define STACKSLOTS_PER_LINE 8
-#define get_bp(bp) asm("movl %%ebp, %0" : "=r" (bp) :)
#else
#define STACKSLOTS_PER_LINE 4
-#define get_bp(bp) asm("movq %%rbp, %0" : "=r" (bp) :)
#endif
#ifdef CONFIG_FRAME_POINTER
-static inline unsigned long
-stack_frame(struct task_struct *task, struct pt_regs *regs)
+static inline unsigned long *
+get_frame_pointer(struct task_struct *task, struct pt_regs *regs)
{
- unsigned long bp;
-
if (regs)
- return regs->bp;
+ return (unsigned long *)regs->bp;
- if (task == current) {
- /* Grab bp right from our regs */
- get_bp(bp);
- return bp;
- }
+ if (task == current)
+ return __builtin_frame_address(0);
- /* bp is the last reg pushed by switch_to */
- return *(unsigned long *)task->thread.sp;
+ return &((struct inactive_task_frame *)task->thread.sp)->bp;
}
#else
-static inline unsigned long
-stack_frame(struct task_struct *task, struct pt_regs *regs)
+static inline unsigned long *
+get_frame_pointer(struct task_struct *task, struct pt_regs *regs)
{
- return 0;
+ return NULL;
}
-#endif
+#endif /* CONFIG_FRAME_POINTER */
-extern void
-show_trace_log_lvl(struct task_struct *task, struct pt_regs *regs,
- unsigned long *stack, unsigned long bp, char *log_lvl);
+static inline unsigned long *
+get_stack_pointer(struct task_struct *task, struct pt_regs *regs)
+{
+ if (regs)
+ return (unsigned long *)regs->sp;
-extern void
-show_stack_log_lvl(struct task_struct *task, struct pt_regs *regs,
- unsigned long *sp, unsigned long bp, char *log_lvl);
+ if (task == current)
+ return __builtin_frame_address(0);
-extern unsigned int code_bytes;
+ return (unsigned long *)task->thread.sp;
+}
/* The form of the top of the frame on the stack */
struct stack_frame {
@@ -105,17 +109,6 @@ struct stack_frame_ia32 {
u32 return_address;
};
-static inline unsigned long caller_frame_pointer(void)
-{
- struct stack_frame *frame;
-
- get_bp(frame);
-
-#ifdef CONFIG_FRAME_POINTER
- frame = frame->next_frame;
-#endif
-
- return (unsigned long)frame;
-}
-
+void show_opcodes(struct pt_regs *regs, const char *loglvl);
+void show_ip(struct pt_regs *regs, const char *loglvl);
#endif /* _ASM_X86_STACKTRACE_H */
diff --git a/arch/x86/include/asm/static_call.h b/arch/x86/include/asm/static_call.h
new file mode 100644
index 000000000000..343b722ccaf2
--- /dev/null
+++ b/arch/x86/include/asm/static_call.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_STATIC_CALL_H
+#define _ASM_STATIC_CALL_H
+
+#include <asm/text-patching.h>
+
+/*
+ * For CONFIG_HAVE_STATIC_CALL_INLINE, this is a temporary trampoline which
+ * uses the current value of the key->func pointer to do an indirect jump to
+ * the function. This trampoline is only used during boot, before the call
+ * sites get patched by static_call_update(). The name of this trampoline has
+ * a magical aspect: objtool uses it to find static call sites so it can create
+ * the .static_call_sites section.
+ *
+ * For CONFIG_HAVE_STATIC_CALL, this is a permanent trampoline which
+ * does a direct jump to the function. The direct jump gets patched by
+ * static_call_update().
+ *
+ * Having the trampoline in a special section forces GCC to emit a JMP.d32 when
+ * it does tail-call optimization on the call; since you cannot compute the
+ * relative displacement across sections.
+ */
+
+/*
+ * The trampoline is 8 bytes and of the general form:
+ *
+ * jmp.d32 \func
+ * ud1 %esp, %ecx
+ *
+ * That trailing #UD provides both a speculation stop and serves as a unique
+ * 3 byte signature identifying static call trampolines. Also see tramp_ud[]
+ * and __static_call_fixup().
+ */
+#define __ARCH_DEFINE_STATIC_CALL_TRAMP(name, insns) \
+ asm(".pushsection .static_call.text, \"ax\" \n" \
+ ".align 4 \n" \
+ ".globl " STATIC_CALL_TRAMP_STR(name) " \n" \
+ STATIC_CALL_TRAMP_STR(name) ": \n" \
+ ANNOTATE_NOENDBR \
+ insns " \n" \
+ ".byte 0x0f, 0xb9, 0xcc \n" \
+ ".type " STATIC_CALL_TRAMP_STR(name) ", @function \n" \
+ ".size " STATIC_CALL_TRAMP_STR(name) ", . - " STATIC_CALL_TRAMP_STR(name) " \n" \
+ ".popsection \n")
+
+#define ARCH_DEFINE_STATIC_CALL_TRAMP(name, func) \
+ __ARCH_DEFINE_STATIC_CALL_TRAMP(name, ".byte 0xe9; .long " #func " - (. + 4)")
+
+#ifdef CONFIG_RETHUNK
+#define ARCH_DEFINE_STATIC_CALL_NULL_TRAMP(name) \
+ __ARCH_DEFINE_STATIC_CALL_TRAMP(name, "jmp __x86_return_thunk")
+#else
+#define ARCH_DEFINE_STATIC_CALL_NULL_TRAMP(name) \
+ __ARCH_DEFINE_STATIC_CALL_TRAMP(name, "ret; int3; nop; nop; nop")
+#endif
+
+#define ARCH_DEFINE_STATIC_CALL_RET0_TRAMP(name) \
+ ARCH_DEFINE_STATIC_CALL_TRAMP(name, __static_call_return0)
+
+#define ARCH_ADD_TRAMP_KEY(name) \
+ asm(".pushsection .static_call_tramp_key, \"a\" \n" \
+ ".long " STATIC_CALL_TRAMP_STR(name) " - . \n" \
+ ".long " STATIC_CALL_KEY_STR(name) " - . \n" \
+ ".popsection \n")
+
+extern bool __static_call_fixup(void *tramp, u8 op, void *dest);
+
+#endif /* _ASM_STATIC_CALL_H */
diff --git a/arch/x86/include/asm/string.h b/arch/x86/include/asm/string.h
index 6dfd6d9373a0..c3c2c1914d65 100644
--- a/arch/x86/include/asm/string.h
+++ b/arch/x86/include/asm/string.h
@@ -1,5 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifdef CONFIG_X86_32
-# include "string_32.h"
+# include <asm/string_32.h>
#else
-# include "string_64.h"
+# include <asm/string_64.h>
#endif
diff --git a/arch/x86/include/asm/string_32.h b/arch/x86/include/asm/string_32.h
index 3d3e8353ee5c..32c0d981a82a 100644
--- a/arch/x86/include/asm/string_32.h
+++ b/arch/x86/include/asm/string_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_STRING_32_H
#define _ASM_X86_STRING_32_H
@@ -142,64 +143,21 @@ static __always_inline void *__constant_memcpy(void *to, const void *from,
}
#define __HAVE_ARCH_MEMCPY
+extern void *memcpy(void *, const void *, size_t);
-#ifdef CONFIG_X86_USE_3DNOW
+#ifndef CONFIG_FORTIFY_SOURCE
-#include <asm/mmx.h>
-
-/*
- * This CPU favours 3DNow strongly (eg AMD Athlon)
- */
-
-static inline void *__constant_memcpy3d(void *to, const void *from, size_t len)
-{
- if (len < 512)
- return __constant_memcpy(to, from, len);
- return _mmx_memcpy(to, from, len);
-}
-
-static inline void *__memcpy3d(void *to, const void *from, size_t len)
-{
- if (len < 512)
- return __memcpy(to, from, len);
- return _mmx_memcpy(to, from, len);
-}
-
-#define memcpy(t, f, n) \
- (__builtin_constant_p((n)) \
- ? __constant_memcpy3d((t), (f), (n)) \
- : __memcpy3d((t), (f), (n)))
-
-#else
-
-/*
- * No 3D Now!
- */
-
-#ifndef CONFIG_KMEMCHECK
-
-#if (__GNUC__ >= 4)
#define memcpy(t, f, n) __builtin_memcpy(t, f, n)
-#else
-#define memcpy(t, f, n) \
- (__builtin_constant_p((n)) \
- ? __constant_memcpy((t), (f), (n)) \
- : __memcpy((t), (f), (n)))
-#endif
-#else
-/*
- * kmemcheck becomes very happy if we use the REP instructions unconditionally,
- * because it means that we know both memory operands in advance.
- */
-#define memcpy(t, f, n) __memcpy((t), (f), (n))
-#endif
-#endif
+#endif /* !CONFIG_FORTIFY_SOURCE */
#define __HAVE_ARCH_MEMMOVE
void *memmove(void *dest, const void *src, size_t n);
+extern int memcmp(const void *, const void *, size_t);
+#ifndef CONFIG_FORTIFY_SOURCE
#define memcmp __builtin_memcmp
+#endif
#define __HAVE_ARCH_MEMCHR
extern void *memchr(const void *cs, int c, size_t count);
@@ -218,29 +176,6 @@ static inline void *__memset_generic(void *s, char c, size_t count)
/* we might want to write optimized versions of these later */
#define __constant_count_memset(s, c, count) __memset_generic((s), (c), (count))
-/*
- * memset(x, 0, y) is a reasonably common thing to do, so we want to fill
- * things 32 bits at a time even when we don't know the size of the
- * area at compile-time..
- */
-static __always_inline
-void *__constant_c_memset(void *s, unsigned long c, size_t count)
-{
- int d0, d1;
- asm volatile("rep ; stosl\n\t"
- "testb $2,%b3\n\t"
- "je 1f\n\t"
- "stosw\n"
- "1:\ttestb $1,%b3\n\t"
- "je 2f\n\t"
- "stosb\n"
- "2:"
- : "=&c" (d0), "=&D" (d1)
- : "a" (c), "q" (count), "0" (count/4), "1" ((long)s)
- : "memory");
- return s;
-}
-
/* Added by Gertjan van Wingerde to make minix and sysv module work */
#define __HAVE_ARCH_STRNLEN
extern size_t strnlen(const char *s, size_t count);
@@ -249,87 +184,40 @@ extern size_t strnlen(const char *s, size_t count);
#define __HAVE_ARCH_STRSTR
extern char *strstr(const char *cs, const char *ct);
-/*
- * This looks horribly ugly, but the compiler can optimize it totally,
- * as we by now know that both pattern and count is constant..
- */
-static __always_inline
-void *__constant_c_and_count_memset(void *s, unsigned long pattern,
- size_t count)
-{
- switch (count) {
- case 0:
- return s;
- case 1:
- *(unsigned char *)s = pattern & 0xff;
- return s;
- case 2:
- *(unsigned short *)s = pattern & 0xffff;
- return s;
- case 3:
- *(unsigned short *)s = pattern & 0xffff;
- *((unsigned char *)s + 2) = pattern & 0xff;
- return s;
- case 4:
- *(unsigned long *)s = pattern;
- return s;
- }
-
-#define COMMON(x) \
- asm volatile("rep ; stosl" \
- x \
- : "=&c" (d0), "=&D" (d1) \
- : "a" (eax), "0" (count/4), "1" ((long)s) \
- : "memory")
-
- {
- int d0, d1;
-#if __GNUC__ == 4 && __GNUC_MINOR__ == 0
- /* Workaround for broken gcc 4.0 */
- register unsigned long eax asm("%eax") = pattern;
-#else
- unsigned long eax = pattern;
-#endif
-
- switch (count % 4) {
- case 0:
- COMMON("");
- return s;
- case 1:
- COMMON("\n\tstosb");
- return s;
- case 2:
- COMMON("\n\tstosw");
- return s;
- default:
- COMMON("\n\tstosw\n\tstosb");
- return s;
- }
- }
-
-#undef COMMON
-}
-
-#define __constant_c_x_memset(s, c, count) \
- (__builtin_constant_p(count) \
- ? __constant_c_and_count_memset((s), (c), (count)) \
- : __constant_c_memset((s), (c), (count)))
-
#define __memset(s, c, count) \
(__builtin_constant_p(count) \
? __constant_count_memset((s), (c), (count)) \
: __memset_generic((s), (c), (count)))
#define __HAVE_ARCH_MEMSET
-#if (__GNUC__ >= 4)
+extern void *memset(void *, int, size_t);
+#ifndef CONFIG_FORTIFY_SOURCE
#define memset(s, c, count) __builtin_memset(s, c, count)
-#else
-#define memset(s, c, count) \
- (__builtin_constant_p(c) \
- ? __constant_c_x_memset((s), (0x01010101UL * (unsigned char)(c)), \
- (count)) \
- : __memset((s), (c), (count)))
-#endif
+#endif /* !CONFIG_FORTIFY_SOURCE */
+
+#define __HAVE_ARCH_MEMSET16
+static inline void *memset16(uint16_t *s, uint16_t v, size_t n)
+{
+ int d0, d1;
+ asm volatile("rep\n\t"
+ "stosw"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (v), "1" (s), "0" (n)
+ : "memory");
+ return s;
+}
+
+#define __HAVE_ARCH_MEMSET32
+static inline void *memset32(uint32_t *s, uint32_t v, size_t n)
+{
+ int d0, d1;
+ asm volatile("rep\n\t"
+ "stosl"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (v), "1" (s), "0" (n)
+ : "memory");
+ return s;
+}
/*
* find the first occurrence of byte 'c', or 1 past the area if none
diff --git a/arch/x86/include/asm/string_64.h b/arch/x86/include/asm/string_64.h
index 19e2c468fc2c..857d364b9888 100644
--- a/arch/x86/include/asm/string_64.h
+++ b/arch/x86/include/asm/string_64.h
@@ -1,61 +1,72 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_STRING_64_H
#define _ASM_X86_STRING_64_H
#ifdef __KERNEL__
+#include <linux/jump_label.h>
/* Written 2002 by Andi Kleen */
-/* Only used for special circumstances. Stolen from i386/string.h */
-static __always_inline void *__inline_memcpy(void *to, const void *from, size_t n)
-{
- unsigned long d0, d1, d2;
- asm volatile("rep ; movsl\n\t"
- "testb $2,%b4\n\t"
- "je 1f\n\t"
- "movsw\n"
- "1:\ttestb $1,%b4\n\t"
- "je 2f\n\t"
- "movsb\n"
- "2:"
- : "=&c" (d0), "=&D" (d1), "=&S" (d2)
- : "0" (n / 4), "q" (n), "1" ((long)to), "2" ((long)from)
- : "memory");
- return to;
-}
-
/* Even with __builtin_ the compiler may decide to use the out of line
function. */
+#if defined(__SANITIZE_MEMORY__) && defined(__NO_FORTIFY)
+#include <linux/kmsan_string.h>
+#endif
+
#define __HAVE_ARCH_MEMCPY 1
-#ifndef CONFIG_KMEMCHECK
-#if (__GNUC__ == 4 && __GNUC_MINOR__ >= 3) || __GNUC__ > 4
extern void *memcpy(void *to, const void *from, size_t len);
-#else
extern void *__memcpy(void *to, const void *from, size_t len);
-#define memcpy(dst, src, len) \
-({ \
- size_t __len = (len); \
- void *__ret; \
- if (__builtin_constant_p(len) && __len >= 64) \
- __ret = __memcpy((dst), (src), __len); \
- else \
- __ret = __builtin_memcpy((dst), (src), __len); \
- __ret; \
-})
-#endif
-#else
-/*
- * kmemcheck becomes very happy if we use the REP instructions unconditionally,
- * because it means that we know both memory operands in advance.
- */
-#define memcpy(dst, src, len) __inline_memcpy((dst), (src), (len))
-#endif
#define __HAVE_ARCH_MEMSET
void *memset(void *s, int c, size_t n);
+void *__memset(void *s, int c, size_t n);
+
+/*
+ * KMSAN needs to instrument as much code as possible. Use C versions of
+ * memsetXX() from lib/string.c under KMSAN.
+ */
+#if !defined(CONFIG_KMSAN)
+#define __HAVE_ARCH_MEMSET16
+static inline void *memset16(uint16_t *s, uint16_t v, size_t n)
+{
+ long d0, d1;
+ asm volatile("rep\n\t"
+ "stosw"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (v), "1" (s), "0" (n)
+ : "memory");
+ return s;
+}
+
+#define __HAVE_ARCH_MEMSET32
+static inline void *memset32(uint32_t *s, uint32_t v, size_t n)
+{
+ long d0, d1;
+ asm volatile("rep\n\t"
+ "stosl"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (v), "1" (s), "0" (n)
+ : "memory");
+ return s;
+}
+
+#define __HAVE_ARCH_MEMSET64
+static inline void *memset64(uint64_t *s, uint64_t v, size_t n)
+{
+ long d0, d1;
+ asm volatile("rep\n\t"
+ "stosq"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (v), "1" (s), "0" (n)
+ : "memory");
+ return s;
+}
+#endif
#define __HAVE_ARCH_MEMMOVE
void *memmove(void *dest, const void *src, size_t count);
+void *__memmove(void *dest, const void *src, size_t count);
int memcmp(const void *cs, const void *ct, size_t count);
size_t strlen(const char *s);
@@ -63,6 +74,29 @@ char *strcpy(char *dest, const char *src);
char *strcat(char *dest, const char *src);
int strcmp(const char *cs, const char *ct);
+#ifdef CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE
+#define __HAVE_ARCH_MEMCPY_FLUSHCACHE 1
+void __memcpy_flushcache(void *dst, const void *src, size_t cnt);
+static __always_inline void memcpy_flushcache(void *dst, const void *src, size_t cnt)
+{
+ if (__builtin_constant_p(cnt)) {
+ switch (cnt) {
+ case 4:
+ asm ("movntil %1, %0" : "=m"(*(u32 *)dst) : "r"(*(u32 *)src));
+ return;
+ case 8:
+ asm ("movntiq %1, %0" : "=m"(*(u64 *)dst) : "r"(*(u64 *)src));
+ return;
+ case 16:
+ asm ("movntiq %1, %0" : "=m"(*(u64 *)dst) : "r"(*(u64 *)src));
+ asm ("movntiq %1, %0" : "=m"(*(u64 *)(dst + 8)) : "r"(*(u64 *)(src + 8)));
+ return;
+ }
+ }
+ __memcpy_flushcache(dst, src, cnt);
+}
+#endif
+
#endif /* __KERNEL__ */
#endif /* _ASM_X86_STRING_64_H */
diff --git a/arch/x86/include/asm/suspend.h b/arch/x86/include/asm/suspend.h
index 9bd521fe4570..a892494ca5e4 100644
--- a/arch/x86/include/asm/suspend.h
+++ b/arch/x86/include/asm/suspend.h
@@ -1,5 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifdef CONFIG_X86_32
-# include "suspend_32.h"
+# include <asm/suspend_32.h>
#else
-# include "suspend_64.h"
+# include <asm/suspend_64.h>
#endif
+extern unsigned long restore_jump_address __visible;
+extern unsigned long jump_address_phys;
+extern unsigned long restore_cr3 __visible;
+extern unsigned long temp_pgt __visible;
+extern unsigned long relocated_restore_code __visible;
+extern int relocate_restore_code(void);
+/* Defined in hibernate_asm_32/64.S */
+extern asmlinkage __visible int restore_image(void);
diff --git a/arch/x86/include/asm/suspend_32.h b/arch/x86/include/asm/suspend_32.h
index fd921c3a6841..a800abb1a992 100644
--- a/arch/x86/include/asm/suspend_32.h
+++ b/arch/x86/include/asm/suspend_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2001-2002 Pavel Machek <pavel@suse.cz>
* Based on code
@@ -7,23 +8,30 @@
#define _ASM_X86_SUSPEND_32_H
#include <asm/desc.h>
-#include <asm/i387.h>
-
-static inline int arch_prepare_suspend(void) { return 0; }
+#include <asm/fpu/api.h>
/* image of the saved processor state */
struct saved_context {
- u16 es, fs, gs, ss;
+ /*
+ * On x86_32, all segment registers except gs are saved at kernel
+ * entry in pt_regs.
+ */
+ u16 gs;
unsigned long cr0, cr2, cr3, cr4;
u64 misc_enable;
- bool misc_enable_saved;
- struct desc_ptr gdt;
+ struct saved_msrs saved_msrs;
+ struct desc_ptr gdt_desc;
struct desc_ptr idt;
u16 ldt;
u16 tss;
unsigned long tr;
unsigned long safety;
unsigned long return_address;
+ bool misc_enable_saved;
} __attribute__((packed));
+/* routines for saving/restoring kernel state */
+extern char core_restore_code[];
+extern char restore_registers[];
+
#endif /* _ASM_X86_SUSPEND_32_H */
diff --git a/arch/x86/include/asm/suspend_64.h b/arch/x86/include/asm/suspend_64.h
index 8d942afae681..54df06687d83 100644
--- a/arch/x86/include/asm/suspend_64.h
+++ b/arch/x86/include/asm/suspend_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Copyright 2001-2003 Pavel Machek <pavel@suse.cz>
* Based on code
@@ -7,48 +8,57 @@
#define _ASM_X86_SUSPEND_64_H
#include <asm/desc.h>
-#include <asm/i387.h>
-
-static inline int arch_prepare_suspend(void)
-{
- return 0;
-}
+#include <asm/fpu/api.h>
/*
* Image of the saved processor state, used by the low level ACPI suspend to
* RAM code and by the low level hibernation code.
*
- * If you modify it, fix arch/x86/kernel/acpi/wakeup_64.S and make sure that
- * __save/__restore_processor_state(), defined in arch/x86/kernel/suspend_64.c,
- * still work as required.
+ * If you modify it, check how it is used in arch/x86/kernel/acpi/wakeup_64.S
+ * and make sure that __save/__restore_processor_state(), defined in
+ * arch/x86/power/cpu.c, still work as required.
+ *
+ * Because the structure is packed, make sure to avoid unaligned members. For
+ * optimisation purposes but also because tools like kmemleak only search for
+ * pointers that are aligned.
*/
struct saved_context {
struct pt_regs regs;
- u16 ds, es, fs, gs, ss;
- unsigned long gs_base, gs_kernel_base, fs_base;
- unsigned long cr0, cr2, cr3, cr4, cr8;
+
+ /*
+ * User CS and SS are saved in current_pt_regs(). The rest of the
+ * segment selectors need to be saved and restored here.
+ */
+ u16 ds, es, fs, gs;
+
+ /*
+ * Usermode FSBASE and GSBASE may not match the fs and gs selectors,
+ * so we save them separately. We save the kernelmode GSBASE to
+ * restore percpu access after resume.
+ */
+ unsigned long kernelmode_gs_base, usermode_gs_base, fs_base;
+
+ unsigned long cr0, cr2, cr3, cr4;
u64 misc_enable;
- bool misc_enable_saved;
+ struct saved_msrs saved_msrs;
unsigned long efer;
- u16 gdt_pad;
- u16 gdt_limit;
- unsigned long gdt_base;
+ u16 gdt_pad; /* Unused */
+ struct desc_ptr gdt_desc;
u16 idt_pad;
- u16 idt_limit;
- unsigned long idt_base;
+ struct desc_ptr idt;
u16 ldt;
u16 tss;
unsigned long tr;
unsigned long safety;
unsigned long return_address;
+ bool misc_enable_saved;
} __attribute__((packed));
#define loaddebug(thread,register) \
set_debugreg((thread)->debugreg##register, register)
/* routines for saving/restoring kernel state */
-extern int acpi_save_state_mem(void);
-extern char core_restore_code;
-extern char restore_registers;
+extern char core_restore_code[];
+extern char restore_registers[];
#endif /* _ASM_X86_SUSPEND_64_H */
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h
index f2b83bc7d784..e7c7379d6ac7 100644
--- a/arch/x86/include/asm/svm.h
+++ b/arch/x86/include/asm/svm.h
@@ -1,8 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __SVM_H
#define __SVM_H
+#include <uapi/asm/svm.h>
+#include <uapi/asm/kvm.h>
+
+#include <asm/hyperv-tlfs.h>
+
+/*
+ * 32-bit intercept words in the VMCB Control Area, starting
+ * at Byte offset 000h.
+ */
+
+enum intercept_words {
+ INTERCEPT_CR = 0,
+ INTERCEPT_DR,
+ INTERCEPT_EXCEPTION,
+ INTERCEPT_WORD3,
+ INTERCEPT_WORD4,
+ INTERCEPT_WORD5,
+ MAX_INTERCEPT,
+};
+
enum {
- INTERCEPT_INTR,
+ /* Byte offset 000h (word 0) */
+ INTERCEPT_CR0_READ = 0,
+ INTERCEPT_CR3_READ = 3,
+ INTERCEPT_CR4_READ = 4,
+ INTERCEPT_CR8_READ = 8,
+ INTERCEPT_CR0_WRITE = 16,
+ INTERCEPT_CR3_WRITE = 16 + 3,
+ INTERCEPT_CR4_WRITE = 16 + 4,
+ INTERCEPT_CR8_WRITE = 16 + 8,
+ /* Byte offset 004h (word 1) */
+ INTERCEPT_DR0_READ = 32,
+ INTERCEPT_DR1_READ,
+ INTERCEPT_DR2_READ,
+ INTERCEPT_DR3_READ,
+ INTERCEPT_DR4_READ,
+ INTERCEPT_DR5_READ,
+ INTERCEPT_DR6_READ,
+ INTERCEPT_DR7_READ,
+ INTERCEPT_DR0_WRITE = 48,
+ INTERCEPT_DR1_WRITE,
+ INTERCEPT_DR2_WRITE,
+ INTERCEPT_DR3_WRITE,
+ INTERCEPT_DR4_WRITE,
+ INTERCEPT_DR5_WRITE,
+ INTERCEPT_DR6_WRITE,
+ INTERCEPT_DR7_WRITE,
+ /* Byte offset 008h (word 2) */
+ INTERCEPT_EXCEPTION_OFFSET = 64,
+ /* Byte offset 00Ch (word 3) */
+ INTERCEPT_INTR = 96,
INTERCEPT_NMI,
INTERCEPT_SMI,
INTERCEPT_INIT,
@@ -34,7 +84,8 @@ enum {
INTERCEPT_TASK_SWITCH,
INTERCEPT_FERR_FREEZE,
INTERCEPT_SHUTDOWN,
- INTERCEPT_VMRUN,
+ /* Byte offset 010h (word 4) */
+ INTERCEPT_VMRUN = 128,
INTERCEPT_VMMCALL,
INTERCEPT_VMLOAD,
INTERCEPT_VMSAVE,
@@ -48,15 +99,30 @@ enum {
INTERCEPT_MWAIT,
INTERCEPT_MWAIT_COND,
INTERCEPT_XSETBV,
+ INTERCEPT_RDPRU,
+ TRAP_EFER_WRITE,
+ TRAP_CR0_WRITE,
+ TRAP_CR1_WRITE,
+ TRAP_CR2_WRITE,
+ TRAP_CR3_WRITE,
+ TRAP_CR4_WRITE,
+ TRAP_CR5_WRITE,
+ TRAP_CR6_WRITE,
+ TRAP_CR7_WRITE,
+ TRAP_CR8_WRITE,
+ /* Byte offset 014h (word 5) */
+ INTERCEPT_INVLPGB = 160,
+ INTERCEPT_INVLPGB_ILLEGAL,
+ INTERCEPT_INVPCID,
+ INTERCEPT_MCOMMIT,
+ INTERCEPT_TLBSYNC,
};
struct __attribute__ ((__packed__)) vmcb_control_area {
- u32 intercept_cr;
- u32 intercept_dr;
- u32 intercept_exceptions;
- u64 intercept;
- u8 reserved_1[42];
+ u32 intercepts[MAX_INTERCEPT];
+ u32 reserved_1[15 - MAX_INTERCEPT];
+ u16 pause_filter_thresh;
u16 pause_filter_count;
u64 iopm_base_pa;
u64 msrpm_base_pa;
@@ -75,17 +141,32 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
u32 exit_int_info;
u32 exit_int_info_err;
u64 nested_ctl;
- u8 reserved_4[16];
+ u64 avic_vapic_bar;
+ u64 ghcb_gpa;
u32 event_inj;
u32 event_inj_err;
u64 nested_cr3;
- u64 lbr_ctl;
+ u64 virt_ext;
u32 clean;
u32 reserved_5;
u64 next_rip;
u8 insn_len;
u8 insn_bytes[15];
- u8 reserved_6[800];
+ u64 avic_backing_page; /* Offset 0xe0 */
+ u8 reserved_6[8]; /* Offset 0xe8 */
+ u64 avic_logical_id; /* Offset 0xf0 */
+ u64 avic_physical_id; /* Offset 0xf8 */
+ u8 reserved_7[8];
+ u64 vmsa_pa; /* Used for an SEV-ES guest */
+ u8 reserved_8[720];
+ /*
+ * Offset 0x3e0, 32 bytes reserved
+ * for use by hypervisor/software.
+ */
+ union {
+ struct hv_vmcb_enlightenments hv_enlightenments;
+ u8 reserved_sw[32];
+ };
};
@@ -99,16 +180,43 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
#define V_IRQ_SHIFT 8
#define V_IRQ_MASK (1 << V_IRQ_SHIFT)
+#define V_GIF_SHIFT 9
+#define V_GIF_MASK (1 << V_GIF_SHIFT)
+
+#define V_NMI_PENDING_SHIFT 11
+#define V_NMI_PENDING_MASK (1 << V_NMI_PENDING_SHIFT)
+
+#define V_NMI_BLOCKING_SHIFT 12
+#define V_NMI_BLOCKING_MASK (1 << V_NMI_BLOCKING_SHIFT)
+
#define V_INTR_PRIO_SHIFT 16
#define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
#define V_IGN_TPR_SHIFT 20
#define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
+#define V_IRQ_INJECTION_BITS_MASK (V_IRQ_MASK | V_INTR_PRIO_MASK | V_IGN_TPR_MASK)
+
#define V_INTR_MASKING_SHIFT 24
#define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
-#define SVM_INTERRUPT_SHADOW_MASK 1
+#define V_GIF_ENABLE_SHIFT 25
+#define V_GIF_ENABLE_MASK (1 << V_GIF_ENABLE_SHIFT)
+
+#define V_NMI_ENABLE_SHIFT 26
+#define V_NMI_ENABLE_MASK (1 << V_NMI_ENABLE_SHIFT)
+
+#define AVIC_ENABLE_SHIFT 31
+#define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT)
+
+#define X2APIC_MODE_SHIFT 30
+#define X2APIC_MODE_MASK (1 << X2APIC_MODE_SHIFT)
+
+#define LBR_CTL_ENABLE_MASK BIT_ULL(0)
+#define VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK BIT_ULL(1)
+
+#define SVM_INTERRUPT_SHADOW_MASK BIT_ULL(0)
+#define SVM_GUEST_INTERRUPT_MASK BIT_ULL(1)
#define SVM_IOIO_STR_SHIFT 2
#define SVM_IOIO_REP_SHIFT 3
@@ -125,14 +233,71 @@ struct __attribute__ ((__packed__)) vmcb_control_area {
#define SVM_VM_CR_SVM_LOCK_MASK 0x0008ULL
#define SVM_VM_CR_SVM_DIS_MASK 0x0010ULL
-struct __attribute__ ((__packed__)) vmcb_seg {
+#define SVM_NESTED_CTL_NP_ENABLE BIT(0)
+#define SVM_NESTED_CTL_SEV_ENABLE BIT(1)
+#define SVM_NESTED_CTL_SEV_ES_ENABLE BIT(2)
+
+
+#define SVM_TSC_RATIO_RSVD 0xffffff0000000000ULL
+#define SVM_TSC_RATIO_MIN 0x0000000000000001ULL
+#define SVM_TSC_RATIO_MAX 0x000000ffffffffffULL
+#define SVM_TSC_RATIO_DEFAULT 0x0100000000ULL
+
+
+/* AVIC */
+#define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK (0xFFULL)
+#define AVIC_LOGICAL_ID_ENTRY_VALID_BIT 31
+#define AVIC_LOGICAL_ID_ENTRY_VALID_MASK (1 << 31)
+
+#define AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK GENMASK_ULL(11, 0)
+#define AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK (0xFFFFFFFFFFULL << 12)
+#define AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK (1ULL << 62)
+#define AVIC_PHYSICAL_ID_ENTRY_VALID_MASK (1ULL << 63)
+#define AVIC_PHYSICAL_ID_TABLE_SIZE_MASK (0xFFULL)
+
+#define AVIC_DOORBELL_PHYSICAL_ID_MASK GENMASK_ULL(11, 0)
+
+#define VMCB_AVIC_APIC_BAR_MASK 0xFFFFFFFFFF000ULL
+
+#define AVIC_UNACCEL_ACCESS_WRITE_MASK 1
+#define AVIC_UNACCEL_ACCESS_OFFSET_MASK 0xFF0
+#define AVIC_UNACCEL_ACCESS_VECTOR_MASK 0xFFFFFFFF
+
+enum avic_ipi_failure_cause {
+ AVIC_IPI_FAILURE_INVALID_INT_TYPE,
+ AVIC_IPI_FAILURE_TARGET_NOT_RUNNING,
+ AVIC_IPI_FAILURE_INVALID_TARGET,
+ AVIC_IPI_FAILURE_INVALID_BACKING_PAGE,
+};
+
+#define AVIC_PHYSICAL_MAX_INDEX_MASK GENMASK_ULL(8, 0)
+
+/*
+ * For AVIC, the max index allowed for physical APIC ID table is 0xfe (254), as
+ * 0xff is a broadcast to all CPUs, i.e. can't be targeted individually.
+ */
+#define AVIC_MAX_PHYSICAL_ID 0XFEULL
+
+/*
+ * For x2AVIC, the max index allowed for physical APIC ID table is 0x1ff (511).
+ */
+#define X2AVIC_MAX_PHYSICAL_ID 0x1FFUL
+
+static_assert((AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == AVIC_MAX_PHYSICAL_ID);
+static_assert((X2AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == X2AVIC_MAX_PHYSICAL_ID);
+
+#define AVIC_HPA_MASK ~((0xFFFULL << 52) | 0xFFF)
+
+
+struct vmcb_seg {
u16 selector;
u16 attrib;
u32 limit;
u64 base;
-};
+} __packed;
-struct __attribute__ ((__packed__)) vmcb_save_area {
+/* Save area definition for legacy and SEV-MEM guests */
+struct vmcb_save_area {
struct vmcb_seg es;
struct vmcb_seg cs;
struct vmcb_seg ss;
@@ -143,11 +308,13 @@ struct __attribute__ ((__packed__)) vmcb_save_area {
struct vmcb_seg ldtr;
struct vmcb_seg idtr;
struct vmcb_seg tr;
- u8 reserved_1[43];
+ /* Reserved fields are named following their struct offset */
+ u8 reserved_0xa0[42];
+ u8 vmpl;
u8 cpl;
- u8 reserved_2[4];
+ u8 reserved_0xcc[4];
u64 efer;
- u8 reserved_3[112];
+ u8 reserved_0xd8[112];
u64 cr4;
u64 cr3;
u64 cr0;
@@ -155,9 +322,11 @@ struct __attribute__ ((__packed__)) vmcb_save_area {
u64 dr6;
u64 rflags;
u64 rip;
- u8 reserved_4[88];
+ u8 reserved_0x180[88];
u64 rsp;
- u8 reserved_5[24];
+ u64 s_cet;
+ u64 ssp;
+ u64 isst_addr;
u64 rax;
u64 star;
u64 lstar;
@@ -168,21 +337,237 @@ struct __attribute__ ((__packed__)) vmcb_save_area {
u64 sysenter_esp;
u64 sysenter_eip;
u64 cr2;
- u8 reserved_6[32];
+ u8 reserved_0x248[32];
u64 g_pat;
u64 dbgctl;
u64 br_from;
u64 br_to;
u64 last_excp_from;
u64 last_excp_to;
-};
+ u8 reserved_0x298[72];
+ u32 spec_ctrl; /* Guest version of SPEC_CTRL at 0x2E0 */
+} __packed;
-struct __attribute__ ((__packed__)) vmcb {
+/* Save area definition for SEV-ES and SEV-SNP guests */
+struct sev_es_save_area {
+ struct vmcb_seg es;
+ struct vmcb_seg cs;
+ struct vmcb_seg ss;
+ struct vmcb_seg ds;
+ struct vmcb_seg fs;
+ struct vmcb_seg gs;
+ struct vmcb_seg gdtr;
+ struct vmcb_seg ldtr;
+ struct vmcb_seg idtr;
+ struct vmcb_seg tr;
+ u64 vmpl0_ssp;
+ u64 vmpl1_ssp;
+ u64 vmpl2_ssp;
+ u64 vmpl3_ssp;
+ u64 u_cet;
+ u8 reserved_0xc8[2];
+ u8 vmpl;
+ u8 cpl;
+ u8 reserved_0xcc[4];
+ u64 efer;
+ u8 reserved_0xd8[104];
+ u64 xss;
+ u64 cr4;
+ u64 cr3;
+ u64 cr0;
+ u64 dr7;
+ u64 dr6;
+ u64 rflags;
+ u64 rip;
+ u64 dr0;
+ u64 dr1;
+ u64 dr2;
+ u64 dr3;
+ u64 dr0_addr_mask;
+ u64 dr1_addr_mask;
+ u64 dr2_addr_mask;
+ u64 dr3_addr_mask;
+ u8 reserved_0x1c0[24];
+ u64 rsp;
+ u64 s_cet;
+ u64 ssp;
+ u64 isst_addr;
+ u64 rax;
+ u64 star;
+ u64 lstar;
+ u64 cstar;
+ u64 sfmask;
+ u64 kernel_gs_base;
+ u64 sysenter_cs;
+ u64 sysenter_esp;
+ u64 sysenter_eip;
+ u64 cr2;
+ u8 reserved_0x248[32];
+ u64 g_pat;
+ u64 dbgctl;
+ u64 br_from;
+ u64 br_to;
+ u64 last_excp_from;
+ u64 last_excp_to;
+ u8 reserved_0x298[80];
+ u32 pkru;
+ u32 tsc_aux;
+ u8 reserved_0x2f0[24];
+ u64 rcx;
+ u64 rdx;
+ u64 rbx;
+ u64 reserved_0x320; /* rsp already available at 0x01d8 */
+ u64 rbp;
+ u64 rsi;
+ u64 rdi;
+ u64 r8;
+ u64 r9;
+ u64 r10;
+ u64 r11;
+ u64 r12;
+ u64 r13;
+ u64 r14;
+ u64 r15;
+ u8 reserved_0x380[16];
+ u64 guest_exit_info_1;
+ u64 guest_exit_info_2;
+ u64 guest_exit_int_info;
+ u64 guest_nrip;
+ u64 sev_features;
+ u64 vintr_ctrl;
+ u64 guest_exit_code;
+ u64 virtual_tom;
+ u64 tlb_id;
+ u64 pcpu_id;
+ u64 event_inj;
+ u64 xcr0;
+ u8 reserved_0x3f0[16];
+
+ /* Floating point area */
+ u64 x87_dp;
+ u32 mxcsr;
+ u16 x87_ftw;
+ u16 x87_fsw;
+ u16 x87_fcw;
+ u16 x87_fop;
+ u16 x87_ds;
+ u16 x87_cs;
+ u64 x87_rip;
+ u8 fpreg_x87[80];
+ u8 fpreg_xmm[256];
+ u8 fpreg_ymm[256];
+} __packed;
+
+struct ghcb_save_area {
+ u8 reserved_0x0[203];
+ u8 cpl;
+ u8 reserved_0xcc[116];
+ u64 xss;
+ u8 reserved_0x148[24];
+ u64 dr7;
+ u8 reserved_0x168[16];
+ u64 rip;
+ u8 reserved_0x180[88];
+ u64 rsp;
+ u8 reserved_0x1e0[24];
+ u64 rax;
+ u8 reserved_0x200[264];
+ u64 rcx;
+ u64 rdx;
+ u64 rbx;
+ u8 reserved_0x320[8];
+ u64 rbp;
+ u64 rsi;
+ u64 rdi;
+ u64 r8;
+ u64 r9;
+ u64 r10;
+ u64 r11;
+ u64 r12;
+ u64 r13;
+ u64 r14;
+ u64 r15;
+ u8 reserved_0x380[16];
+ u64 sw_exit_code;
+ u64 sw_exit_info_1;
+ u64 sw_exit_info_2;
+ u64 sw_scratch;
+ u8 reserved_0x3b0[56];
+ u64 xcr0;
+ u8 valid_bitmap[16];
+ u64 x87_state_gpa;
+} __packed;
+
+#define GHCB_SHARED_BUF_SIZE 2032
+
+struct ghcb {
+ struct ghcb_save_area save;
+ u8 reserved_save[2048 - sizeof(struct ghcb_save_area)];
+
+ u8 shared_buffer[GHCB_SHARED_BUF_SIZE];
+
+ u8 reserved_0xff0[10];
+ u16 protocol_version; /* negotiated SEV-ES/GHCB protocol version */
+ u32 ghcb_usage;
+} __packed;
+
+
+#define EXPECTED_VMCB_SAVE_AREA_SIZE 740
+#define EXPECTED_GHCB_SAVE_AREA_SIZE 1032
+#define EXPECTED_SEV_ES_SAVE_AREA_SIZE 1648
+#define EXPECTED_VMCB_CONTROL_AREA_SIZE 1024
+#define EXPECTED_GHCB_SIZE PAGE_SIZE
+
+#define BUILD_BUG_RESERVED_OFFSET(x, y) \
+ ASSERT_STRUCT_OFFSET(struct x, reserved ## _ ## y, y)
+
+static inline void __unused_size_checks(void)
+{
+ BUILD_BUG_ON(sizeof(struct vmcb_save_area) != EXPECTED_VMCB_SAVE_AREA_SIZE);
+ BUILD_BUG_ON(sizeof(struct ghcb_save_area) != EXPECTED_GHCB_SAVE_AREA_SIZE);
+ BUILD_BUG_ON(sizeof(struct sev_es_save_area) != EXPECTED_SEV_ES_SAVE_AREA_SIZE);
+ BUILD_BUG_ON(sizeof(struct vmcb_control_area) != EXPECTED_VMCB_CONTROL_AREA_SIZE);
+ BUILD_BUG_ON(sizeof(struct ghcb) != EXPECTED_GHCB_SIZE);
+
+ /* Check offsets of reserved fields */
+
+ BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xa0);
+ BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xcc);
+ BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xd8);
+ BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x180);
+ BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x248);
+ BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x298);
+
+ BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xc8);
+ BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xcc);
+ BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xd8);
+ BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x1c0);
+ BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x248);
+ BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x298);
+ BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x2f0);
+ BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x320);
+ BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x380);
+ BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x3f0);
+
+ BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x0);
+ BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0xcc);
+ BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x148);
+ BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x168);
+ BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x180);
+ BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x1e0);
+ BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x200);
+ BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x320);
+ BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x380);
+ BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x3b0);
+
+ BUILD_BUG_RESERVED_OFFSET(ghcb, 0xff0);
+}
+
+struct vmcb {
struct vmcb_control_area control;
struct vmcb_save_area save;
-};
+} __packed;
-#define SVM_CPUID_FEATURE_SHIFT 2
#define SVM_CPUID_FUNC 0x8000000a
#define SVM_VM_CR_SVM_DISABLE 4
@@ -208,32 +593,6 @@ struct __attribute__ ((__packed__)) vmcb {
#define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
#define SVM_SELECTOR_CODE_MASK (1 << 3)
-#define INTERCEPT_CR0_READ 0
-#define INTERCEPT_CR3_READ 3
-#define INTERCEPT_CR4_READ 4
-#define INTERCEPT_CR8_READ 8
-#define INTERCEPT_CR0_WRITE (16 + 0)
-#define INTERCEPT_CR3_WRITE (16 + 3)
-#define INTERCEPT_CR4_WRITE (16 + 4)
-#define INTERCEPT_CR8_WRITE (16 + 8)
-
-#define INTERCEPT_DR0_READ 0
-#define INTERCEPT_DR1_READ 1
-#define INTERCEPT_DR2_READ 2
-#define INTERCEPT_DR3_READ 3
-#define INTERCEPT_DR4_READ 4
-#define INTERCEPT_DR5_READ 5
-#define INTERCEPT_DR6_READ 6
-#define INTERCEPT_DR7_READ 7
-#define INTERCEPT_DR0_WRITE (16 + 0)
-#define INTERCEPT_DR1_WRITE (16 + 1)
-#define INTERCEPT_DR2_WRITE (16 + 2)
-#define INTERCEPT_DR3_WRITE (16 + 3)
-#define INTERCEPT_DR4_WRITE (16 + 4)
-#define INTERCEPT_DR5_WRITE (16 + 5)
-#define INTERCEPT_DR6_WRITE (16 + 6)
-#define INTERCEPT_DR7_WRITE (16 + 7)
-
#define SVM_EVTINJ_VEC_MASK 0xff
#define SVM_EVTINJ_TYPE_SHIFT 8
@@ -264,89 +623,59 @@ struct __attribute__ ((__packed__)) vmcb {
#define SVM_EXITINFO_REG_MASK 0x0F
-#define SVM_EXIT_READ_CR0 0x000
-#define SVM_EXIT_READ_CR3 0x003
-#define SVM_EXIT_READ_CR4 0x004
-#define SVM_EXIT_READ_CR8 0x008
-#define SVM_EXIT_WRITE_CR0 0x010
-#define SVM_EXIT_WRITE_CR3 0x013
-#define SVM_EXIT_WRITE_CR4 0x014
-#define SVM_EXIT_WRITE_CR8 0x018
-#define SVM_EXIT_READ_DR0 0x020
-#define SVM_EXIT_READ_DR1 0x021
-#define SVM_EXIT_READ_DR2 0x022
-#define SVM_EXIT_READ_DR3 0x023
-#define SVM_EXIT_READ_DR4 0x024
-#define SVM_EXIT_READ_DR5 0x025
-#define SVM_EXIT_READ_DR6 0x026
-#define SVM_EXIT_READ_DR7 0x027
-#define SVM_EXIT_WRITE_DR0 0x030
-#define SVM_EXIT_WRITE_DR1 0x031
-#define SVM_EXIT_WRITE_DR2 0x032
-#define SVM_EXIT_WRITE_DR3 0x033
-#define SVM_EXIT_WRITE_DR4 0x034
-#define SVM_EXIT_WRITE_DR5 0x035
-#define SVM_EXIT_WRITE_DR6 0x036
-#define SVM_EXIT_WRITE_DR7 0x037
-#define SVM_EXIT_EXCP_BASE 0x040
-#define SVM_EXIT_INTR 0x060
-#define SVM_EXIT_NMI 0x061
-#define SVM_EXIT_SMI 0x062
-#define SVM_EXIT_INIT 0x063
-#define SVM_EXIT_VINTR 0x064
-#define SVM_EXIT_CR0_SEL_WRITE 0x065
-#define SVM_EXIT_IDTR_READ 0x066
-#define SVM_EXIT_GDTR_READ 0x067
-#define SVM_EXIT_LDTR_READ 0x068
-#define SVM_EXIT_TR_READ 0x069
-#define SVM_EXIT_IDTR_WRITE 0x06a
-#define SVM_EXIT_GDTR_WRITE 0x06b
-#define SVM_EXIT_LDTR_WRITE 0x06c
-#define SVM_EXIT_TR_WRITE 0x06d
-#define SVM_EXIT_RDTSC 0x06e
-#define SVM_EXIT_RDPMC 0x06f
-#define SVM_EXIT_PUSHF 0x070
-#define SVM_EXIT_POPF 0x071
-#define SVM_EXIT_CPUID 0x072
-#define SVM_EXIT_RSM 0x073
-#define SVM_EXIT_IRET 0x074
-#define SVM_EXIT_SWINT 0x075
-#define SVM_EXIT_INVD 0x076
-#define SVM_EXIT_PAUSE 0x077
-#define SVM_EXIT_HLT 0x078
-#define SVM_EXIT_INVLPG 0x079
-#define SVM_EXIT_INVLPGA 0x07a
-#define SVM_EXIT_IOIO 0x07b
-#define SVM_EXIT_MSR 0x07c
-#define SVM_EXIT_TASK_SWITCH 0x07d
-#define SVM_EXIT_FERR_FREEZE 0x07e
-#define SVM_EXIT_SHUTDOWN 0x07f
-#define SVM_EXIT_VMRUN 0x080
-#define SVM_EXIT_VMMCALL 0x081
-#define SVM_EXIT_VMLOAD 0x082
-#define SVM_EXIT_VMSAVE 0x083
-#define SVM_EXIT_STGI 0x084
-#define SVM_EXIT_CLGI 0x085
-#define SVM_EXIT_SKINIT 0x086
-#define SVM_EXIT_RDTSCP 0x087
-#define SVM_EXIT_ICEBP 0x088
-#define SVM_EXIT_WBINVD 0x089
-#define SVM_EXIT_MONITOR 0x08a
-#define SVM_EXIT_MWAIT 0x08b
-#define SVM_EXIT_MWAIT_COND 0x08c
-#define SVM_EXIT_XSETBV 0x08d
-#define SVM_EXIT_NPF 0x400
-
-#define SVM_EXIT_ERR -1
-
#define SVM_CR0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
-#define SVM_VMLOAD ".byte 0x0f, 0x01, 0xda"
-#define SVM_VMRUN ".byte 0x0f, 0x01, 0xd8"
-#define SVM_VMSAVE ".byte 0x0f, 0x01, 0xdb"
-#define SVM_CLGI ".byte 0x0f, 0x01, 0xdd"
-#define SVM_STGI ".byte 0x0f, 0x01, 0xdc"
-#define SVM_INVLPGA ".byte 0x0f, 0x01, 0xdf"
+/* GHCB Accessor functions */
+
+#define GHCB_BITMAP_IDX(field) \
+ (offsetof(struct ghcb_save_area, field) / sizeof(u64))
+
+#define DEFINE_GHCB_ACCESSORS(field) \
+ static __always_inline bool ghcb_##field##_is_valid(const struct ghcb *ghcb) \
+ { \
+ return test_bit(GHCB_BITMAP_IDX(field), \
+ (unsigned long *)&ghcb->save.valid_bitmap); \
+ } \
+ \
+ static __always_inline u64 ghcb_get_##field(struct ghcb *ghcb) \
+ { \
+ return ghcb->save.field; \
+ } \
+ \
+ static __always_inline u64 ghcb_get_##field##_if_valid(struct ghcb *ghcb) \
+ { \
+ return ghcb_##field##_is_valid(ghcb) ? ghcb->save.field : 0; \
+ } \
+ \
+ static __always_inline void ghcb_set_##field(struct ghcb *ghcb, u64 value) \
+ { \
+ __set_bit(GHCB_BITMAP_IDX(field), \
+ (unsigned long *)&ghcb->save.valid_bitmap); \
+ ghcb->save.field = value; \
+ }
+
+DEFINE_GHCB_ACCESSORS(cpl)
+DEFINE_GHCB_ACCESSORS(rip)
+DEFINE_GHCB_ACCESSORS(rsp)
+DEFINE_GHCB_ACCESSORS(rax)
+DEFINE_GHCB_ACCESSORS(rcx)
+DEFINE_GHCB_ACCESSORS(rdx)
+DEFINE_GHCB_ACCESSORS(rbx)
+DEFINE_GHCB_ACCESSORS(rbp)
+DEFINE_GHCB_ACCESSORS(rsi)
+DEFINE_GHCB_ACCESSORS(rdi)
+DEFINE_GHCB_ACCESSORS(r8)
+DEFINE_GHCB_ACCESSORS(r9)
+DEFINE_GHCB_ACCESSORS(r10)
+DEFINE_GHCB_ACCESSORS(r11)
+DEFINE_GHCB_ACCESSORS(r12)
+DEFINE_GHCB_ACCESSORS(r13)
+DEFINE_GHCB_ACCESSORS(r14)
+DEFINE_GHCB_ACCESSORS(r15)
+DEFINE_GHCB_ACCESSORS(sw_exit_code)
+DEFINE_GHCB_ACCESSORS(sw_exit_info_1)
+DEFINE_GHCB_ACCESSORS(sw_exit_info_2)
+DEFINE_GHCB_ACCESSORS(sw_scratch)
+DEFINE_GHCB_ACCESSORS(xcr0)
#endif
-
diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h
deleted file mode 100644
index 977f1761a25d..000000000000
--- a/arch/x86/include/asm/swiotlb.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef _ASM_X86_SWIOTLB_H
-#define _ASM_X86_SWIOTLB_H
-
-#include <linux/swiotlb.h>
-
-#ifdef CONFIG_SWIOTLB
-extern int swiotlb;
-extern int __init pci_swiotlb_detect_override(void);
-extern int __init pci_swiotlb_detect_4gb(void);
-extern void __init pci_swiotlb_init(void);
-extern void __init pci_swiotlb_late_init(void);
-#else
-#define swiotlb 0
-static inline int pci_swiotlb_detect_override(void)
-{
- return 0;
-}
-static inline int pci_swiotlb_detect_4gb(void)
-{
- return 0;
-}
-static inline void pci_swiotlb_init(void)
-{
-}
-static inline void pci_swiotlb_late_init(void)
-{
-}
-#endif
-
-static inline void dma_mark_clean(void *addr, size_t size) {}
-
-#endif /* _ASM_X86_SWIOTLB_H */
diff --git a/arch/x86/include/asm/switch_to.h b/arch/x86/include/asm/switch_to.h
new file mode 100644
index 000000000000..5c91305d09d2
--- /dev/null
+++ b/arch/x86/include/asm/switch_to.h
@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SWITCH_TO_H
+#define _ASM_X86_SWITCH_TO_H
+
+#include <linux/sched/task_stack.h>
+
+struct task_struct; /* one of the stranger aspects of C forward declarations */
+
+struct task_struct *__switch_to_asm(struct task_struct *prev,
+ struct task_struct *next);
+
+__visible struct task_struct *__switch_to(struct task_struct *prev,
+ struct task_struct *next);
+
+asmlinkage void ret_from_fork(void);
+
+/*
+ * This is the structure pointed to by thread.sp for an inactive task. The
+ * order of the fields must match the code in __switch_to_asm().
+ */
+struct inactive_task_frame {
+#ifdef CONFIG_X86_64
+ unsigned long r15;
+ unsigned long r14;
+ unsigned long r13;
+ unsigned long r12;
+#else
+ unsigned long flags;
+ unsigned long si;
+ unsigned long di;
+#endif
+ unsigned long bx;
+
+ /*
+ * These two fields must be together. They form a stack frame header,
+ * needed by get_frame_pointer().
+ */
+ unsigned long bp;
+ unsigned long ret_addr;
+};
+
+struct fork_frame {
+ struct inactive_task_frame frame;
+ struct pt_regs regs;
+};
+
+#define switch_to(prev, next, last) \
+do { \
+ ((last) = __switch_to_asm((prev), (next))); \
+} while (0)
+
+#ifdef CONFIG_X86_32
+static inline void refresh_sysenter_cs(struct thread_struct *thread)
+{
+ /* Only happens when SEP is enabled, no need to test "SEP"arately: */
+ if (unlikely(this_cpu_read(cpu_tss_rw.x86_tss.ss1) == thread->sysenter_cs))
+ return;
+
+ this_cpu_write(cpu_tss_rw.x86_tss.ss1, thread->sysenter_cs);
+ wrmsr(MSR_IA32_SYSENTER_CS, thread->sysenter_cs, 0);
+}
+#endif
+
+/* This is used when switching tasks or entering/exiting vm86 mode. */
+static inline void update_task_stack(struct task_struct *task)
+{
+ /* sp0 always points to the entry trampoline stack, which is constant: */
+#ifdef CONFIG_X86_32
+ this_cpu_write(cpu_tss_rw.x86_tss.sp1, task->thread.sp0);
+#else
+ /* Xen PV enters the kernel on the thread stack. */
+ if (cpu_feature_enabled(X86_FEATURE_XENPV))
+ load_sp0(task_top_of_stack(task));
+#endif
+}
+
+static inline void kthread_frame_init(struct inactive_task_frame *frame,
+ int (*fun)(void *), void *arg)
+{
+ frame->bx = (unsigned long)fun;
+#ifdef CONFIG_X86_32
+ frame->di = (unsigned long)arg;
+#else
+ frame->r12 = (unsigned long)arg;
+#endif
+}
+
+#endif /* _ASM_X86_SWITCH_TO_H */
diff --git a/arch/x86/include/asm/sync_bitops.h b/arch/x86/include/asm/sync_bitops.h
index 9d09b4073b60..6d8d6bc183b7 100644
--- a/arch/x86/include/asm/sync_bitops.h
+++ b/arch/x86/include/asm/sync_bitops.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SYNC_BITOPS_H
#define _ASM_X86_SYNC_BITOPS_H
@@ -13,6 +14,8 @@
* bit 0 is the LSB of addr; bit 32 is the LSB of (addr+1).
*/
+#include <asm/rmwcc.h>
+
#define ADDR (*(volatile long *)addr)
/**
@@ -26,9 +29,9 @@
* Note that @nr may be almost arbitrarily large; this function is not
* restricted to acting on a single-word quantity.
*/
-static inline void sync_set_bit(int nr, volatile unsigned long *addr)
+static inline void sync_set_bit(long nr, volatile unsigned long *addr)
{
- asm volatile("lock; btsl %1,%0"
+ asm volatile("lock; " __ASM_SIZE(bts) " %1,%0"
: "+m" (ADDR)
: "Ir" (nr)
: "memory");
@@ -41,12 +44,12 @@ static inline void sync_set_bit(int nr, volatile unsigned long *addr)
*
* sync_clear_bit() is atomic and may not be reordered. However, it does
* not contain a memory barrier, so if it is used for locking purposes,
- * you should call smp_mb__before_clear_bit() and/or smp_mb__after_clear_bit()
+ * you should call smp_mb__before_atomic() and/or smp_mb__after_atomic()
* in order to ensure changes are visible on other processors.
*/
-static inline void sync_clear_bit(int nr, volatile unsigned long *addr)
+static inline void sync_clear_bit(long nr, volatile unsigned long *addr)
{
- asm volatile("lock; btrl %1,%0"
+ asm volatile("lock; " __ASM_SIZE(btr) " %1,%0"
: "+m" (ADDR)
: "Ir" (nr)
: "memory");
@@ -61,9 +64,9 @@ static inline void sync_clear_bit(int nr, volatile unsigned long *addr)
* Note that @nr may be almost arbitrarily large; this function is not
* restricted to acting on a single-word quantity.
*/
-static inline void sync_change_bit(int nr, volatile unsigned long *addr)
+static inline void sync_change_bit(long nr, volatile unsigned long *addr)
{
- asm volatile("lock; btcl %1,%0"
+ asm volatile("lock; " __ASM_SIZE(btc) " %1,%0"
: "+m" (ADDR)
: "Ir" (nr)
: "memory");
@@ -77,14 +80,9 @@ static inline void sync_change_bit(int nr, volatile unsigned long *addr)
* This operation is atomic and cannot be reordered.
* It also implies a memory barrier.
*/
-static inline int sync_test_and_set_bit(int nr, volatile unsigned long *addr)
+static inline bool sync_test_and_set_bit(long nr, volatile unsigned long *addr)
{
- int oldbit;
-
- asm volatile("lock; btsl %2,%1\n\tsbbl %0,%0"
- : "=r" (oldbit), "+m" (ADDR)
- : "Ir" (nr) : "memory");
- return oldbit;
+ return GEN_BINARY_RMWcc("lock; " __ASM_SIZE(bts), *addr, c, "Ir", nr);
}
/**
@@ -95,14 +93,9 @@ static inline int sync_test_and_set_bit(int nr, volatile unsigned long *addr)
* This operation is atomic and cannot be reordered.
* It also implies a memory barrier.
*/
-static inline int sync_test_and_clear_bit(int nr, volatile unsigned long *addr)
+static inline int sync_test_and_clear_bit(long nr, volatile unsigned long *addr)
{
- int oldbit;
-
- asm volatile("lock; btrl %2,%1\n\tsbbl %0,%0"
- : "=r" (oldbit), "+m" (ADDR)
- : "Ir" (nr) : "memory");
- return oldbit;
+ return GEN_BINARY_RMWcc("lock; " __ASM_SIZE(btr), *addr, c, "Ir", nr);
}
/**
@@ -113,14 +106,9 @@ static inline int sync_test_and_clear_bit(int nr, volatile unsigned long *addr)
* This operation is atomic and cannot be reordered.
* It also implies a memory barrier.
*/
-static inline int sync_test_and_change_bit(int nr, volatile unsigned long *addr)
+static inline int sync_test_and_change_bit(long nr, volatile unsigned long *addr)
{
- int oldbit;
-
- asm volatile("lock; btcl %2,%1\n\tsbbl %0,%0"
- : "=r" (oldbit), "+m" (ADDR)
- : "Ir" (nr) : "memory");
- return oldbit;
+ return GEN_BINARY_RMWcc("lock; " __ASM_SIZE(btc), *addr, c, "Ir", nr);
}
#define sync_test_bit(nr, addr) test_bit(nr, addr)
diff --git a/arch/x86/include/asm/sync_core.h b/arch/x86/include/asm/sync_core.h
new file mode 100644
index 000000000000..ab7382f92aff
--- /dev/null
+++ b/arch/x86/include/asm/sync_core.h
@@ -0,0 +1,111 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SYNC_CORE_H
+#define _ASM_X86_SYNC_CORE_H
+
+#include <linux/preempt.h>
+#include <asm/processor.h>
+#include <asm/cpufeature.h>
+#include <asm/special_insns.h>
+
+#ifdef CONFIG_X86_32
+static inline void iret_to_self(void)
+{
+ asm volatile (
+ "pushfl\n\t"
+ "pushl %%cs\n\t"
+ "pushl $1f\n\t"
+ "iret\n\t"
+ "1:"
+ : ASM_CALL_CONSTRAINT : : "memory");
+}
+#else
+static inline void iret_to_self(void)
+{
+ unsigned int tmp;
+
+ asm volatile (
+ "mov %%ss, %0\n\t"
+ "pushq %q0\n\t"
+ "pushq %%rsp\n\t"
+ "addq $8, (%%rsp)\n\t"
+ "pushfq\n\t"
+ "mov %%cs, %0\n\t"
+ "pushq %q0\n\t"
+ "pushq $1f\n\t"
+ "iretq\n\t"
+ "1:"
+ : "=&r" (tmp), ASM_CALL_CONSTRAINT : : "cc", "memory");
+}
+#endif /* CONFIG_X86_32 */
+
+/*
+ * This function forces the icache and prefetched instruction stream to
+ * catch up with reality in two very specific cases:
+ *
+ * a) Text was modified using one virtual address and is about to be executed
+ * from the same physical page at a different virtual address.
+ *
+ * b) Text was modified on a different CPU, may subsequently be
+ * executed on this CPU, and you want to make sure the new version
+ * gets executed. This generally means you're calling this in an IPI.
+ *
+ * If you're calling this for a different reason, you're probably doing
+ * it wrong.
+ *
+ * Like all of Linux's memory ordering operations, this is a
+ * compiler barrier as well.
+ */
+static inline void sync_core(void)
+{
+ /*
+ * The SERIALIZE instruction is the most straightforward way to
+ * do this, but it is not universally available.
+ */
+ if (static_cpu_has(X86_FEATURE_SERIALIZE)) {
+ serialize();
+ return;
+ }
+
+ /*
+ * For all other processors, there are quite a few ways to do this.
+ * IRET-to-self is nice because it works on every CPU, at any CPL
+ * (so it's compatible with paravirtualization), and it never exits
+ * to a hypervisor. The only downsides are that it's a bit slow
+ * (it seems to be a bit more than 2x slower than the fastest
+ * options) and that it unmasks NMIs. The "push %cs" is needed,
+ * because in paravirtual environments __KERNEL_CS may not be a
+ * valid CS value when we do IRET directly.
+ *
+ * In case NMI unmasking or performance ever becomes a problem,
+ * the next best option appears to be MOV-to-CR2 and an
+ * unconditional jump. That sequence also works on all CPUs,
+ * but it will fault at CPL3 (i.e. Xen PV).
+ *
+ * CPUID is the conventional way, but it's nasty: it doesn't
+ * exist on some 486-like CPUs, and it usually exits to a
+ * hypervisor.
+ */
+ iret_to_self();
+}
+
+/*
+ * Ensure that a core serializing instruction is issued before returning
+ * to user-mode. x86 implements return to user-space through sysexit,
+ * sysrel, and sysretq, which are not core serializing.
+ */
+static inline void sync_core_before_usermode(void)
+{
+ /* With PTI, we unconditionally serialize before running user code. */
+ if (static_cpu_has(X86_FEATURE_PTI))
+ return;
+
+ /*
+ * Even if we're in an interrupt, we might reschedule before returning,
+ * in which case we could switch to a different thread in the same mm
+ * and return using SYSRET or SYSEXIT. Instead of trying to keep
+ * track of our need to sync the core, just sync right away.
+ */
+ sync_core();
+}
+
+#endif /* _ASM_X86_SYNC_CORE_H */
diff --git a/arch/x86/include/asm/sys_ia32.h b/arch/x86/include/asm/sys_ia32.h
deleted file mode 100644
index cb238526a9f1..000000000000
--- a/arch/x86/include/asm/sys_ia32.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * sys_ia32.h - Linux ia32 syscall interfaces
- *
- * Copyright (c) 2008 Jaswinder Singh Rajput
- *
- * This file is released under the GPLv2.
- * See the file COPYING for more details.
- */
-
-#ifndef _ASM_X86_SYS_IA32_H
-#define _ASM_X86_SYS_IA32_H
-
-#include <linux/compiler.h>
-#include <linux/linkage.h>
-#include <linux/types.h>
-#include <linux/signal.h>
-#include <asm/compat.h>
-#include <asm/ia32.h>
-
-/* ia32/sys_ia32.c */
-asmlinkage long sys32_truncate64(const char __user *, unsigned long, unsigned long);
-asmlinkage long sys32_ftruncate64(unsigned int, unsigned long, unsigned long);
-
-asmlinkage long sys32_stat64(const char __user *, struct stat64 __user *);
-asmlinkage long sys32_lstat64(const char __user *, struct stat64 __user *);
-asmlinkage long sys32_fstat64(unsigned int, struct stat64 __user *);
-asmlinkage long sys32_fstatat(unsigned int, const char __user *,
- struct stat64 __user *, int);
-struct mmap_arg_struct32;
-asmlinkage long sys32_mmap(struct mmap_arg_struct32 __user *);
-asmlinkage long sys32_mprotect(unsigned long, size_t, unsigned long);
-
-struct sigaction32;
-struct old_sigaction32;
-asmlinkage long sys32_rt_sigaction(int, struct sigaction32 __user *,
- struct sigaction32 __user *, unsigned int);
-asmlinkage long sys32_sigaction(int, struct old_sigaction32 __user *,
- struct old_sigaction32 __user *);
-asmlinkage long sys32_rt_sigprocmask(int, compat_sigset_t __user *,
- compat_sigset_t __user *, unsigned int);
-asmlinkage long sys32_alarm(unsigned int);
-
-asmlinkage long sys32_waitpid(compat_pid_t, unsigned int *, int);
-asmlinkage long sys32_sysfs(int, u32, u32);
-
-asmlinkage long sys32_sched_rr_get_interval(compat_pid_t,
- struct compat_timespec __user *);
-asmlinkage long sys32_rt_sigpending(compat_sigset_t __user *, compat_size_t);
-asmlinkage long sys32_rt_sigqueueinfo(int, int, compat_siginfo_t __user *);
-
-asmlinkage long sys32_pread(unsigned int, char __user *, u32, u32, u32);
-asmlinkage long sys32_pwrite(unsigned int, const char __user *, u32, u32, u32);
-
-asmlinkage long sys32_personality(unsigned long);
-asmlinkage long sys32_sendfile(int, int, compat_off_t __user *, s32);
-
-asmlinkage long sys32_execve(const char __user *, compat_uptr_t __user *,
- compat_uptr_t __user *, struct pt_regs *);
-asmlinkage long sys32_clone(unsigned int, unsigned int, struct pt_regs *);
-
-long sys32_lseek(unsigned int, int, unsigned int);
-long sys32_kill(int, int);
-long sys32_fadvise64_64(int, __u32, __u32, __u32, __u32, int);
-long sys32_vm86_warning(void);
-long sys32_lookup_dcookie(u32, u32, char __user *, size_t);
-
-asmlinkage ssize_t sys32_readahead(int, unsigned, unsigned, size_t);
-asmlinkage long sys32_sync_file_range(int, unsigned, unsigned,
- unsigned, unsigned, int);
-asmlinkage long sys32_fadvise64(int, unsigned, unsigned, size_t, int);
-asmlinkage long sys32_fallocate(int, int, unsigned,
- unsigned, unsigned, unsigned);
-
-/* ia32/ia32_signal.c */
-asmlinkage long sys32_sigsuspend(int, int, old_sigset_t);
-asmlinkage long sys32_sigaltstack(const stack_ia32_t __user *,
- stack_ia32_t __user *, struct pt_regs *);
-asmlinkage long sys32_sigreturn(struct pt_regs *);
-asmlinkage long sys32_rt_sigreturn(struct pt_regs *);
-
-/* ia32/ipc32.c */
-asmlinkage long sys32_ipc(u32, int, int, int, compat_uptr_t, u32);
-
-asmlinkage long sys32_fanotify_mark(int, unsigned int, u32, u32, int,
- const char __user *);
-#endif /* _ASM_X86_SYS_IA32_H */
diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h
index c4a348f7bd43..5b85987a5e97 100644
--- a/arch/x86/include/asm/syscall.h
+++ b/arch/x86/include/asm/syscall.h
@@ -1,22 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Access to user system call parameters and results
*
* Copyright (C) 2008-2009 Red Hat, Inc. All rights reserved.
*
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
- *
* See asm-generic/syscall.h for descriptions of what we must do here.
*/
#ifndef _ASM_X86_SYSCALL_H
#define _ASM_X86_SYSCALL_H
+#include <uapi/linux/audit.h>
#include <linux/sched.h>
#include <linux/err.h>
+#include <asm/thread_info.h> /* for TS_COMPAT */
+#include <asm/unistd.h>
+
+typedef long (*sys_call_ptr_t)(const struct pt_regs *);
+extern const sys_call_ptr_t sys_call_table[];
-extern const unsigned long sys_call_table[];
+#if defined(CONFIG_X86_32)
+#define ia32_sys_call_table sys_call_table
+#else
+/*
+ * These may not exist, but still put the prototypes in so we
+ * can use IS_ENABLED().
+ */
+extern const sys_call_ptr_t ia32_sys_call_table[];
+extern const sys_call_ptr_t x32_sys_call_table[];
+#endif
/*
* Only the low 32 bits of orig_ax are meaningful, so we return int.
@@ -43,7 +55,7 @@ static inline long syscall_get_error(struct task_struct *task,
* TS_COMPAT is set for 32-bit syscall entries and then
* remains set until we return to user mode.
*/
- if (task_thread_info(task)->status & TS_COMPAT)
+ if (task->thread_info.status & (TS_COMPAT|TS_I386_REGS_POKED))
/*
* Sign-extend the value so (int)-EFOO becomes (long)-EFOO
* and will match correctly in comparisons.
@@ -70,146 +82,54 @@ static inline void syscall_set_return_value(struct task_struct *task,
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
- unsigned int i, unsigned int n,
unsigned long *args)
{
- BUG_ON(i + n > 6);
- memcpy(args, &regs->bx + i, n * sizeof(args[0]));
+ memcpy(args, &regs->bx, 6 * sizeof(args[0]));
}
-static inline void syscall_set_arguments(struct task_struct *task,
- struct pt_regs *regs,
- unsigned int i, unsigned int n,
- const unsigned long *args)
+static inline int syscall_get_arch(struct task_struct *task)
{
- BUG_ON(i + n > 6);
- memcpy(&regs->bx + i, args, n * sizeof(args[0]));
+ return AUDIT_ARCH_I386;
}
#else /* CONFIG_X86_64 */
static inline void syscall_get_arguments(struct task_struct *task,
struct pt_regs *regs,
- unsigned int i, unsigned int n,
unsigned long *args)
{
# ifdef CONFIG_IA32_EMULATION
- if (task_thread_info(task)->status & TS_COMPAT)
- switch (i) {
- case 0:
- if (!n--) break;
- *args++ = regs->bx;
- case 1:
- if (!n--) break;
- *args++ = regs->cx;
- case 2:
- if (!n--) break;
- *args++ = regs->dx;
- case 3:
- if (!n--) break;
- *args++ = regs->si;
- case 4:
- if (!n--) break;
- *args++ = regs->di;
- case 5:
- if (!n--) break;
- *args++ = regs->bp;
- case 6:
- if (!n--) break;
- default:
- BUG();
- break;
- }
- else
+ if (task->thread_info.status & TS_COMPAT) {
+ *args++ = regs->bx;
+ *args++ = regs->cx;
+ *args++ = regs->dx;
+ *args++ = regs->si;
+ *args++ = regs->di;
+ *args = regs->bp;
+ } else
# endif
- switch (i) {
- case 0:
- if (!n--) break;
- *args++ = regs->di;
- case 1:
- if (!n--) break;
- *args++ = regs->si;
- case 2:
- if (!n--) break;
- *args++ = regs->dx;
- case 3:
- if (!n--) break;
- *args++ = regs->r10;
- case 4:
- if (!n--) break;
- *args++ = regs->r8;
- case 5:
- if (!n--) break;
- *args++ = regs->r9;
- case 6:
- if (!n--) break;
- default:
- BUG();
- break;
- }
+ {
+ *args++ = regs->di;
+ *args++ = regs->si;
+ *args++ = regs->dx;
+ *args++ = regs->r10;
+ *args++ = regs->r8;
+ *args = regs->r9;
+ }
}
-static inline void syscall_set_arguments(struct task_struct *task,
- struct pt_regs *regs,
- unsigned int i, unsigned int n,
- const unsigned long *args)
+static inline int syscall_get_arch(struct task_struct *task)
{
-# ifdef CONFIG_IA32_EMULATION
- if (task_thread_info(task)->status & TS_COMPAT)
- switch (i) {
- case 0:
- if (!n--) break;
- regs->bx = *args++;
- case 1:
- if (!n--) break;
- regs->cx = *args++;
- case 2:
- if (!n--) break;
- regs->dx = *args++;
- case 3:
- if (!n--) break;
- regs->si = *args++;
- case 4:
- if (!n--) break;
- regs->di = *args++;
- case 5:
- if (!n--) break;
- regs->bp = *args++;
- case 6:
- if (!n--) break;
- default:
- BUG();
- break;
- }
- else
-# endif
- switch (i) {
- case 0:
- if (!n--) break;
- regs->di = *args++;
- case 1:
- if (!n--) break;
- regs->si = *args++;
- case 2:
- if (!n--) break;
- regs->dx = *args++;
- case 3:
- if (!n--) break;
- regs->r10 = *args++;
- case 4:
- if (!n--) break;
- regs->r8 = *args++;
- case 5:
- if (!n--) break;
- regs->r9 = *args++;
- case 6:
- if (!n--) break;
- default:
- BUG();
- break;
- }
+ /* x32 tasks should be considered AUDIT_ARCH_X86_64. */
+ return (IS_ENABLED(CONFIG_IA32_EMULATION) &&
+ task->thread_info.status & TS_COMPAT)
+ ? AUDIT_ARCH_I386 : AUDIT_ARCH_X86_64;
}
+void do_syscall_64(struct pt_regs *regs, int nr);
+void do_int80_syscall_32(struct pt_regs *regs);
+long do_fast_syscall_32(struct pt_regs *regs);
+
#endif /* CONFIG_X86_32 */
#endif /* _ASM_X86_SYSCALL_H */
diff --git a/arch/x86/include/asm/syscall_wrapper.h b/arch/x86/include/asm/syscall_wrapper.h
new file mode 100644
index 000000000000..fd2669b1cb2d
--- /dev/null
+++ b/arch/x86/include/asm/syscall_wrapper.h
@@ -0,0 +1,273 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * syscall_wrapper.h - x86 specific wrappers to syscall definitions
+ */
+
+#ifndef _ASM_X86_SYSCALL_WRAPPER_H
+#define _ASM_X86_SYSCALL_WRAPPER_H
+
+#include <asm/ptrace.h>
+
+extern long __x64_sys_ni_syscall(const struct pt_regs *regs);
+extern long __ia32_sys_ni_syscall(const struct pt_regs *regs);
+
+/*
+ * Instead of the generic __SYSCALL_DEFINEx() definition, the x86 version takes
+ * struct pt_regs *regs as the only argument of the syscall stub(s) named as:
+ * __x64_sys_*() - 64-bit native syscall
+ * __ia32_sys_*() - 32-bit native syscall or common compat syscall
+ * __ia32_compat_sys_*() - 32-bit compat syscall
+ * __x64_compat_sys_*() - 64-bit X32 compat syscall
+ *
+ * The registers are decoded according to the ABI:
+ * 64-bit: RDI, RSI, RDX, R10, R8, R9
+ * 32-bit: EBX, ECX, EDX, ESI, EDI, EBP
+ *
+ * The stub then passes the decoded arguments to the __se_sys_*() wrapper to
+ * perform sign-extension (omitted for zero-argument syscalls). Finally the
+ * arguments are passed to the __do_sys_*() function which is the actual
+ * syscall. These wrappers are marked as inline so the compiler can optimize
+ * the functions where appropriate.
+ *
+ * Example assembly (slightly re-ordered for better readability):
+ *
+ * <__x64_sys_recv>: <-- syscall with 4 parameters
+ * callq <__fentry__>
+ *
+ * mov 0x70(%rdi),%rdi <-- decode regs->di
+ * mov 0x68(%rdi),%rsi <-- decode regs->si
+ * mov 0x60(%rdi),%rdx <-- decode regs->dx
+ * mov 0x38(%rdi),%rcx <-- decode regs->r10
+ *
+ * xor %r9d,%r9d <-- clear %r9
+ * xor %r8d,%r8d <-- clear %r8
+ *
+ * callq __sys_recvfrom <-- do the actual work in __sys_recvfrom()
+ * which takes 6 arguments
+ *
+ * cltq <-- extend return value to 64-bit
+ * retq <-- return
+ *
+ * This approach avoids leaking random user-provided register content down
+ * the call chain.
+ */
+
+/* Mapping of registers to parameters for syscalls on x86-64 and x32 */
+#define SC_X86_64_REGS_TO_ARGS(x, ...) \
+ __MAP(x,__SC_ARGS \
+ ,,regs->di,,regs->si,,regs->dx \
+ ,,regs->r10,,regs->r8,,regs->r9) \
+
+/* Mapping of registers to parameters for syscalls on i386 */
+#define SC_IA32_REGS_TO_ARGS(x, ...) \
+ __MAP(x,__SC_ARGS \
+ ,,(unsigned int)regs->bx,,(unsigned int)regs->cx \
+ ,,(unsigned int)regs->dx,,(unsigned int)regs->si \
+ ,,(unsigned int)regs->di,,(unsigned int)regs->bp)
+
+#define __SYS_STUB0(abi, name) \
+ long __##abi##_##name(const struct pt_regs *regs); \
+ ALLOW_ERROR_INJECTION(__##abi##_##name, ERRNO); \
+ long __##abi##_##name(const struct pt_regs *regs) \
+ __alias(__do_##name);
+
+#define __SYS_STUBx(abi, name, ...) \
+ long __##abi##_##name(const struct pt_regs *regs); \
+ ALLOW_ERROR_INJECTION(__##abi##_##name, ERRNO); \
+ long __##abi##_##name(const struct pt_regs *regs) \
+ { \
+ return __se_##name(__VA_ARGS__); \
+ }
+
+#define __COND_SYSCALL(abi, name) \
+ __weak long __##abi##_##name(const struct pt_regs *__unused); \
+ __weak long __##abi##_##name(const struct pt_regs *__unused) \
+ { \
+ return sys_ni_syscall(); \
+ }
+
+#define __SYS_NI(abi, name) \
+ SYSCALL_ALIAS(__##abi##_##name, sys_ni_posix_timers);
+
+#ifdef CONFIG_X86_64
+#define __X64_SYS_STUB0(name) \
+ __SYS_STUB0(x64, sys_##name)
+
+#define __X64_SYS_STUBx(x, name, ...) \
+ __SYS_STUBx(x64, sys##name, \
+ SC_X86_64_REGS_TO_ARGS(x, __VA_ARGS__))
+
+#define __X64_COND_SYSCALL(name) \
+ __COND_SYSCALL(x64, sys_##name)
+
+#define __X64_SYS_NI(name) \
+ __SYS_NI(x64, sys_##name)
+#else /* CONFIG_X86_64 */
+#define __X64_SYS_STUB0(name)
+#define __X64_SYS_STUBx(x, name, ...)
+#define __X64_COND_SYSCALL(name)
+#define __X64_SYS_NI(name)
+#endif /* CONFIG_X86_64 */
+
+#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION)
+#define __IA32_SYS_STUB0(name) \
+ __SYS_STUB0(ia32, sys_##name)
+
+#define __IA32_SYS_STUBx(x, name, ...) \
+ __SYS_STUBx(ia32, sys##name, \
+ SC_IA32_REGS_TO_ARGS(x, __VA_ARGS__))
+
+#define __IA32_COND_SYSCALL(name) \
+ __COND_SYSCALL(ia32, sys_##name)
+
+#define __IA32_SYS_NI(name) \
+ __SYS_NI(ia32, sys_##name)
+#else /* CONFIG_X86_32 || CONFIG_IA32_EMULATION */
+#define __IA32_SYS_STUB0(name)
+#define __IA32_SYS_STUBx(x, name, ...)
+#define __IA32_COND_SYSCALL(name)
+#define __IA32_SYS_NI(name)
+#endif /* CONFIG_X86_32 || CONFIG_IA32_EMULATION */
+
+#ifdef CONFIG_IA32_EMULATION
+/*
+ * For IA32 emulation, we need to handle "compat" syscalls *and* create
+ * additional wrappers (aptly named __ia32_sys_xyzzy) which decode the
+ * ia32 regs in the proper order for shared or "common" syscalls. As some
+ * syscalls may not be implemented, we need to expand COND_SYSCALL in
+ * kernel/sys_ni.c and SYS_NI in kernel/time/posix-stubs.c to cover this
+ * case as well.
+ */
+#define __IA32_COMPAT_SYS_STUB0(name) \
+ __SYS_STUB0(ia32, compat_sys_##name)
+
+#define __IA32_COMPAT_SYS_STUBx(x, name, ...) \
+ __SYS_STUBx(ia32, compat_sys##name, \
+ SC_IA32_REGS_TO_ARGS(x, __VA_ARGS__))
+
+#define __IA32_COMPAT_COND_SYSCALL(name) \
+ __COND_SYSCALL(ia32, compat_sys_##name)
+
+#define __IA32_COMPAT_SYS_NI(name) \
+ __SYS_NI(ia32, compat_sys_##name)
+
+#else /* CONFIG_IA32_EMULATION */
+#define __IA32_COMPAT_SYS_STUB0(name)
+#define __IA32_COMPAT_SYS_STUBx(x, name, ...)
+#define __IA32_COMPAT_COND_SYSCALL(name)
+#define __IA32_COMPAT_SYS_NI(name)
+#endif /* CONFIG_IA32_EMULATION */
+
+
+#ifdef CONFIG_X86_X32_ABI
+/*
+ * For the x32 ABI, we need to create a stub for compat_sys_*() which is aware
+ * of the x86-64-style parameter ordering of x32 syscalls. The syscalls common
+ * with x86_64 obviously do not need such care.
+ */
+#define __X32_COMPAT_SYS_STUB0(name) \
+ __SYS_STUB0(x64, compat_sys_##name)
+
+#define __X32_COMPAT_SYS_STUBx(x, name, ...) \
+ __SYS_STUBx(x64, compat_sys##name, \
+ SC_X86_64_REGS_TO_ARGS(x, __VA_ARGS__))
+
+#define __X32_COMPAT_COND_SYSCALL(name) \
+ __COND_SYSCALL(x64, compat_sys_##name)
+
+#define __X32_COMPAT_SYS_NI(name) \
+ __SYS_NI(x64, compat_sys_##name)
+#else /* CONFIG_X86_X32_ABI */
+#define __X32_COMPAT_SYS_STUB0(name)
+#define __X32_COMPAT_SYS_STUBx(x, name, ...)
+#define __X32_COMPAT_COND_SYSCALL(name)
+#define __X32_COMPAT_SYS_NI(name)
+#endif /* CONFIG_X86_X32_ABI */
+
+
+#ifdef CONFIG_COMPAT
+/*
+ * Compat means IA32_EMULATION and/or X86_X32. As they use a different
+ * mapping of registers to parameters, we need to generate stubs for each
+ * of them.
+ */
+#define COMPAT_SYSCALL_DEFINE0(name) \
+ static long \
+ __do_compat_sys_##name(const struct pt_regs *__unused); \
+ __IA32_COMPAT_SYS_STUB0(name) \
+ __X32_COMPAT_SYS_STUB0(name) \
+ static long \
+ __do_compat_sys_##name(const struct pt_regs *__unused)
+
+#define COMPAT_SYSCALL_DEFINEx(x, name, ...) \
+ static long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
+ static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
+ __IA32_COMPAT_SYS_STUBx(x, name, __VA_ARGS__) \
+ __X32_COMPAT_SYS_STUBx(x, name, __VA_ARGS__) \
+ static long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
+ { \
+ return __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));\
+ } \
+ static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
+
+/*
+ * As some compat syscalls may not be implemented, we need to expand
+ * COND_SYSCALL_COMPAT in kernel/sys_ni.c and COMPAT_SYS_NI in
+ * kernel/time/posix-stubs.c to cover this case as well.
+ */
+#define COND_SYSCALL_COMPAT(name) \
+ __IA32_COMPAT_COND_SYSCALL(name) \
+ __X32_COMPAT_COND_SYSCALL(name)
+
+#define COMPAT_SYS_NI(name) \
+ __IA32_COMPAT_SYS_NI(name) \
+ __X32_COMPAT_SYS_NI(name)
+
+#endif /* CONFIG_COMPAT */
+
+#define __SYSCALL_DEFINEx(x, name, ...) \
+ static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \
+ static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
+ __X64_SYS_STUBx(x, name, __VA_ARGS__) \
+ __IA32_SYS_STUBx(x, name, __VA_ARGS__) \
+ static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \
+ { \
+ long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));\
+ __MAP(x,__SC_TEST,__VA_ARGS__); \
+ __PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__)); \
+ return ret; \
+ } \
+ static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))
+
+/*
+ * As the generic SYSCALL_DEFINE0() macro does not decode any parameters for
+ * obvious reasons, and passing struct pt_regs *regs to it in %rdi does not
+ * hurt, we only need to re-define it here to keep the naming congruent to
+ * SYSCALL_DEFINEx() -- which is essential for the COND_SYSCALL() and SYS_NI()
+ * macros to work correctly.
+ */
+#define SYSCALL_DEFINE0(sname) \
+ SYSCALL_METADATA(_##sname, 0); \
+ static long __do_sys_##sname(const struct pt_regs *__unused); \
+ __X64_SYS_STUB0(sname) \
+ __IA32_SYS_STUB0(sname) \
+ static long __do_sys_##sname(const struct pt_regs *__unused)
+
+#define COND_SYSCALL(name) \
+ __X64_COND_SYSCALL(name) \
+ __IA32_COND_SYSCALL(name)
+
+#define SYS_NI(name) \
+ __X64_SYS_NI(name) \
+ __IA32_SYS_NI(name)
+
+
+/*
+ * For VSYSCALLS, we need to declare these three syscalls with the new
+ * pt_regs-based calling convention for in-kernel use.
+ */
+long __x64_sys_getcpu(const struct pt_regs *regs);
+long __x64_sys_gettimeofday(const struct pt_regs *regs);
+long __x64_sys_time(const struct pt_regs *regs);
+
+#endif /* _ASM_X86_SYSCALL_WRAPPER_H */
diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h
index f1d8b441fc77..6714a358235d 100644
--- a/arch/x86/include/asm/syscalls.h
+++ b/arch/x86/include/asm/syscalls.h
@@ -1,69 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* syscalls.h - Linux syscall interfaces (arch-specific)
*
* Copyright (c) 2008 Jaswinder Singh Rajput
- *
- * This file is released under the GPLv2.
- * See the file COPYING for more details.
*/
#ifndef _ASM_X86_SYSCALLS_H
#define _ASM_X86_SYSCALLS_H
-#include <linux/compiler.h>
-#include <linux/linkage.h>
-#include <linux/signal.h>
-#include <linux/types.h>
-
/* Common in X86_32 and X86_64 */
/* kernel/ioport.c */
-asmlinkage long sys_ioperm(unsigned long, unsigned long, int);
-long sys_iopl(unsigned int, struct pt_regs *);
-
-/* kernel/process.c */
-int sys_fork(struct pt_regs *);
-int sys_vfork(struct pt_regs *);
-long sys_execve(const char __user *,
- const char __user *const __user *,
- const char __user *const __user *, struct pt_regs *);
-long sys_clone(unsigned long, unsigned long, void __user *,
- void __user *, struct pt_regs *);
-
-/* kernel/ldt.c */
-asmlinkage int sys_modify_ldt(int, void __user *, unsigned long);
-
-/* kernel/signal.c */
-long sys_rt_sigreturn(struct pt_regs *);
-long sys_sigaltstack(const stack_t __user *, stack_t __user *,
- struct pt_regs *);
-
-
-/* kernel/tls.c */
-asmlinkage int sys_set_thread_area(struct user_desc __user *);
-asmlinkage int sys_get_thread_area(struct user_desc __user *);
-
-/* X86_32 only */
-#ifdef CONFIG_X86_32
-
-/* kernel/signal.c */
-asmlinkage int sys_sigsuspend(int, int, old_sigset_t);
-asmlinkage int sys_sigaction(int, const struct old_sigaction __user *,
- struct old_sigaction __user *);
-unsigned long sys_sigreturn(struct pt_regs *);
-
-/* kernel/vm86_32.c */
-int sys_vm86old(struct vm86_struct __user *, struct pt_regs *);
-int sys_vm86(unsigned long, unsigned long, struct pt_regs *);
-
-#else /* CONFIG_X86_32 */
-
-/* X86_64 only */
-/* kernel/process_64.c */
-long sys_arch_prctl(int, unsigned long);
-
-/* kernel/sys_x86_64.c */
-asmlinkage long sys_mmap(unsigned long, unsigned long, unsigned long,
- unsigned long, unsigned long, unsigned long);
+long ksys_ioperm(unsigned long from, unsigned long num, int turn_on);
-#endif /* CONFIG_X86_32 */
#endif /* _ASM_X86_SYSCALLS_H */
diff --git a/arch/x86/include/asm/system.h b/arch/x86/include/asm/system.h
deleted file mode 100644
index 12569e691ce3..000000000000
--- a/arch/x86/include/asm/system.h
+++ /dev/null
@@ -1,465 +0,0 @@
-#ifndef _ASM_X86_SYSTEM_H
-#define _ASM_X86_SYSTEM_H
-
-#include <asm/asm.h>
-#include <asm/segment.h>
-#include <asm/cpufeature.h>
-#include <asm/cmpxchg.h>
-#include <asm/nops.h>
-
-#include <linux/kernel.h>
-#include <linux/irqflags.h>
-
-/* entries in ARCH_DLINFO: */
-#if defined(CONFIG_IA32_EMULATION) || !defined(CONFIG_X86_64)
-# define AT_VECTOR_SIZE_ARCH 2
-#else /* else it's non-compat x86-64 */
-# define AT_VECTOR_SIZE_ARCH 1
-#endif
-
-struct task_struct; /* one of the stranger aspects of C forward declarations */
-struct task_struct *__switch_to(struct task_struct *prev,
- struct task_struct *next);
-struct tss_struct;
-void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p,
- struct tss_struct *tss);
-extern void show_regs_common(void);
-
-#ifdef CONFIG_X86_32
-
-#ifdef CONFIG_CC_STACKPROTECTOR
-#define __switch_canary \
- "movl %P[task_canary](%[next]), %%ebx\n\t" \
- "movl %%ebx, "__percpu_arg([stack_canary])"\n\t"
-#define __switch_canary_oparam \
- , [stack_canary] "=m" (stack_canary.canary)
-#define __switch_canary_iparam \
- , [task_canary] "i" (offsetof(struct task_struct, stack_canary))
-#else /* CC_STACKPROTECTOR */
-#define __switch_canary
-#define __switch_canary_oparam
-#define __switch_canary_iparam
-#endif /* CC_STACKPROTECTOR */
-
-/*
- * Saving eflags is important. It switches not only IOPL between tasks,
- * it also protects other tasks from NT leaking through sysenter etc.
- */
-#define switch_to(prev, next, last) \
-do { \
- /* \
- * Context-switching clobbers all registers, so we clobber \
- * them explicitly, via unused output variables. \
- * (EAX and EBP is not listed because EBP is saved/restored \
- * explicitly for wchan access and EAX is the return value of \
- * __switch_to()) \
- */ \
- unsigned long ebx, ecx, edx, esi, edi; \
- \
- asm volatile("pushfl\n\t" /* save flags */ \
- "pushl %%ebp\n\t" /* save EBP */ \
- "movl %%esp,%[prev_sp]\n\t" /* save ESP */ \
- "movl %[next_sp],%%esp\n\t" /* restore ESP */ \
- "movl $1f,%[prev_ip]\n\t" /* save EIP */ \
- "pushl %[next_ip]\n\t" /* restore EIP */ \
- __switch_canary \
- "jmp __switch_to\n" /* regparm call */ \
- "1:\t" \
- "popl %%ebp\n\t" /* restore EBP */ \
- "popfl\n" /* restore flags */ \
- \
- /* output parameters */ \
- : [prev_sp] "=m" (prev->thread.sp), \
- [prev_ip] "=m" (prev->thread.ip), \
- "=a" (last), \
- \
- /* clobbered output registers: */ \
- "=b" (ebx), "=c" (ecx), "=d" (edx), \
- "=S" (esi), "=D" (edi) \
- \
- __switch_canary_oparam \
- \
- /* input parameters: */ \
- : [next_sp] "m" (next->thread.sp), \
- [next_ip] "m" (next->thread.ip), \
- \
- /* regparm parameters for __switch_to(): */ \
- [prev] "a" (prev), \
- [next] "d" (next) \
- \
- __switch_canary_iparam \
- \
- : /* reloaded segment registers */ \
- "memory"); \
-} while (0)
-
-/*
- * disable hlt during certain critical i/o operations
- */
-#define HAVE_DISABLE_HLT
-#else
-
-/* frame pointer must be last for get_wchan */
-#define SAVE_CONTEXT "pushf ; pushq %%rbp ; movq %%rsi,%%rbp\n\t"
-#define RESTORE_CONTEXT "movq %%rbp,%%rsi ; popq %%rbp ; popf\t"
-
-#define __EXTRA_CLOBBER \
- , "rcx", "rbx", "rdx", "r8", "r9", "r10", "r11", \
- "r12", "r13", "r14", "r15"
-
-#ifdef CONFIG_CC_STACKPROTECTOR
-#define __switch_canary \
- "movq %P[task_canary](%%rsi),%%r8\n\t" \
- "movq %%r8,"__percpu_arg([gs_canary])"\n\t"
-#define __switch_canary_oparam \
- , [gs_canary] "=m" (irq_stack_union.stack_canary)
-#define __switch_canary_iparam \
- , [task_canary] "i" (offsetof(struct task_struct, stack_canary))
-#else /* CC_STACKPROTECTOR */
-#define __switch_canary
-#define __switch_canary_oparam
-#define __switch_canary_iparam
-#endif /* CC_STACKPROTECTOR */
-
-/* Save restore flags to clear handle leaking NT */
-#define switch_to(prev, next, last) \
- asm volatile(SAVE_CONTEXT \
- "movq %%rsp,%P[threadrsp](%[prev])\n\t" /* save RSP */ \
- "movq %P[threadrsp](%[next]),%%rsp\n\t" /* restore RSP */ \
- "call __switch_to\n\t" \
- "movq "__percpu_arg([current_task])",%%rsi\n\t" \
- __switch_canary \
- "movq %P[thread_info](%%rsi),%%r8\n\t" \
- "movq %%rax,%%rdi\n\t" \
- "testl %[_tif_fork],%P[ti_flags](%%r8)\n\t" \
- "jnz ret_from_fork\n\t" \
- RESTORE_CONTEXT \
- : "=a" (last) \
- __switch_canary_oparam \
- : [next] "S" (next), [prev] "D" (prev), \
- [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \
- [ti_flags] "i" (offsetof(struct thread_info, flags)), \
- [_tif_fork] "i" (_TIF_FORK), \
- [thread_info] "i" (offsetof(struct task_struct, stack)), \
- [current_task] "m" (current_task) \
- __switch_canary_iparam \
- : "memory", "cc" __EXTRA_CLOBBER)
-#endif
-
-#ifdef __KERNEL__
-
-extern void native_load_gs_index(unsigned);
-
-/*
- * Load a segment. Fall back on loading the zero
- * segment if something goes wrong..
- */
-#define loadsegment(seg, value) \
-do { \
- unsigned short __val = (value); \
- \
- asm volatile(" \n" \
- "1: movl %k0,%%" #seg " \n" \
- \
- ".section .fixup,\"ax\" \n" \
- "2: xorl %k0,%k0 \n" \
- " jmp 1b \n" \
- ".previous \n" \
- \
- _ASM_EXTABLE(1b, 2b) \
- \
- : "+r" (__val) : : "memory"); \
-} while (0)
-
-/*
- * Save a segment register away
- */
-#define savesegment(seg, value) \
- asm("mov %%" #seg ",%0":"=r" (value) : : "memory")
-
-/*
- * x86_32 user gs accessors.
- */
-#ifdef CONFIG_X86_32
-#ifdef CONFIG_X86_32_LAZY_GS
-#define get_user_gs(regs) (u16)({unsigned long v; savesegment(gs, v); v;})
-#define set_user_gs(regs, v) loadsegment(gs, (unsigned long)(v))
-#define task_user_gs(tsk) ((tsk)->thread.gs)
-#define lazy_save_gs(v) savesegment(gs, (v))
-#define lazy_load_gs(v) loadsegment(gs, (v))
-#else /* X86_32_LAZY_GS */
-#define get_user_gs(regs) (u16)((regs)->gs)
-#define set_user_gs(regs, v) do { (regs)->gs = (v); } while (0)
-#define task_user_gs(tsk) (task_pt_regs(tsk)->gs)
-#define lazy_save_gs(v) do { } while (0)
-#define lazy_load_gs(v) do { } while (0)
-#endif /* X86_32_LAZY_GS */
-#endif /* X86_32 */
-
-static inline unsigned long get_limit(unsigned long segment)
-{
- unsigned long __limit;
- asm("lsll %1,%0" : "=r" (__limit) : "r" (segment));
- return __limit + 1;
-}
-
-static inline void native_clts(void)
-{
- asm volatile("clts");
-}
-
-/*
- * Volatile isn't enough to prevent the compiler from reordering the
- * read/write functions for the control registers and messing everything up.
- * A memory clobber would solve the problem, but would prevent reordering of
- * all loads stores around it, which can hurt performance. Solution is to
- * use a variable and mimic reads and writes to it to enforce serialization
- */
-static unsigned long __force_order;
-
-static inline unsigned long native_read_cr0(void)
-{
- unsigned long val;
- asm volatile("mov %%cr0,%0\n\t" : "=r" (val), "=m" (__force_order));
- return val;
-}
-
-static inline void native_write_cr0(unsigned long val)
-{
- asm volatile("mov %0,%%cr0": : "r" (val), "m" (__force_order));
-}
-
-static inline unsigned long native_read_cr2(void)
-{
- unsigned long val;
- asm volatile("mov %%cr2,%0\n\t" : "=r" (val), "=m" (__force_order));
- return val;
-}
-
-static inline void native_write_cr2(unsigned long val)
-{
- asm volatile("mov %0,%%cr2": : "r" (val), "m" (__force_order));
-}
-
-static inline unsigned long native_read_cr3(void)
-{
- unsigned long val;
- asm volatile("mov %%cr3,%0\n\t" : "=r" (val), "=m" (__force_order));
- return val;
-}
-
-static inline void native_write_cr3(unsigned long val)
-{
- asm volatile("mov %0,%%cr3": : "r" (val), "m" (__force_order));
-}
-
-static inline unsigned long native_read_cr4(void)
-{
- unsigned long val;
- asm volatile("mov %%cr4,%0\n\t" : "=r" (val), "=m" (__force_order));
- return val;
-}
-
-static inline unsigned long native_read_cr4_safe(void)
-{
- unsigned long val;
- /* This could fault if %cr4 does not exist. In x86_64, a cr4 always
- * exists, so it will never fail. */
-#ifdef CONFIG_X86_32
- asm volatile("1: mov %%cr4, %0\n"
- "2:\n"
- _ASM_EXTABLE(1b, 2b)
- : "=r" (val), "=m" (__force_order) : "0" (0));
-#else
- val = native_read_cr4();
-#endif
- return val;
-}
-
-static inline void native_write_cr4(unsigned long val)
-{
- asm volatile("mov %0,%%cr4": : "r" (val), "m" (__force_order));
-}
-
-#ifdef CONFIG_X86_64
-static inline unsigned long native_read_cr8(void)
-{
- unsigned long cr8;
- asm volatile("movq %%cr8,%0" : "=r" (cr8));
- return cr8;
-}
-
-static inline void native_write_cr8(unsigned long val)
-{
- asm volatile("movq %0,%%cr8" :: "r" (val) : "memory");
-}
-#endif
-
-static inline void native_wbinvd(void)
-{
- asm volatile("wbinvd": : :"memory");
-}
-
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else
-#define read_cr0() (native_read_cr0())
-#define write_cr0(x) (native_write_cr0(x))
-#define read_cr2() (native_read_cr2())
-#define write_cr2(x) (native_write_cr2(x))
-#define read_cr3() (native_read_cr3())
-#define write_cr3(x) (native_write_cr3(x))
-#define read_cr4() (native_read_cr4())
-#define read_cr4_safe() (native_read_cr4_safe())
-#define write_cr4(x) (native_write_cr4(x))
-#define wbinvd() (native_wbinvd())
-#ifdef CONFIG_X86_64
-#define read_cr8() (native_read_cr8())
-#define write_cr8(x) (native_write_cr8(x))
-#define load_gs_index native_load_gs_index
-#endif
-
-/* Clear the 'TS' bit */
-#define clts() (native_clts())
-
-#endif/* CONFIG_PARAVIRT */
-
-#define stts() write_cr0(read_cr0() | X86_CR0_TS)
-
-#endif /* __KERNEL__ */
-
-static inline void clflush(volatile void *__p)
-{
- asm volatile("clflush %0" : "+m" (*(volatile char __force *)__p));
-}
-
-#define nop() asm volatile ("nop")
-
-void disable_hlt(void);
-void enable_hlt(void);
-
-void cpu_idle_wait(void);
-
-extern unsigned long arch_align_stack(unsigned long sp);
-extern void free_init_pages(char *what, unsigned long begin, unsigned long end);
-
-void default_idle(void);
-
-void stop_this_cpu(void *dummy);
-
-/*
- * Force strict CPU ordering.
- * And yes, this is required on UP too when we're talking
- * to devices.
- */
-#ifdef CONFIG_X86_32
-/*
- * Some non-Intel clones support out of order store. wmb() ceases to be a
- * nop for these.
- */
-#define mb() alternative("lock; addl $0,0(%%esp)", "mfence", X86_FEATURE_XMM2)
-#define rmb() alternative("lock; addl $0,0(%%esp)", "lfence", X86_FEATURE_XMM2)
-#define wmb() alternative("lock; addl $0,0(%%esp)", "sfence", X86_FEATURE_XMM)
-#else
-#define mb() asm volatile("mfence":::"memory")
-#define rmb() asm volatile("lfence":::"memory")
-#define wmb() asm volatile("sfence" ::: "memory")
-#endif
-
-/**
- * read_barrier_depends - Flush all pending reads that subsequents reads
- * depend on.
- *
- * No data-dependent reads from memory-like regions are ever reordered
- * over this barrier. All reads preceding this primitive are guaranteed
- * to access memory (but not necessarily other CPUs' caches) before any
- * reads following this primitive that depend on the data return by
- * any of the preceding reads. This primitive is much lighter weight than
- * rmb() on most CPUs, and is never heavier weight than is
- * rmb().
- *
- * These ordering constraints are respected by both the local CPU
- * and the compiler.
- *
- * Ordering is not guaranteed by anything other than these primitives,
- * not even by data dependencies. See the documentation for
- * memory_barrier() for examples and URLs to more information.
- *
- * For example, the following code would force ordering (the initial
- * value of "a" is zero, "b" is one, and "p" is "&a"):
- *
- * <programlisting>
- * CPU 0 CPU 1
- *
- * b = 2;
- * memory_barrier();
- * p = &b; q = p;
- * read_barrier_depends();
- * d = *q;
- * </programlisting>
- *
- * because the read of "*q" depends on the read of "p" and these
- * two reads are separated by a read_barrier_depends(). However,
- * the following code, with the same initial values for "a" and "b":
- *
- * <programlisting>
- * CPU 0 CPU 1
- *
- * a = 2;
- * memory_barrier();
- * b = 3; y = b;
- * read_barrier_depends();
- * x = a;
- * </programlisting>
- *
- * does not enforce ordering, since there is no data dependency between
- * the read of "a" and the read of "b". Therefore, on some CPUs, such
- * as Alpha, "y" could be set to 3 and "x" to 0. Use rmb()
- * in cases like this where there are no data dependencies.
- **/
-
-#define read_barrier_depends() do { } while (0)
-
-#ifdef CONFIG_SMP
-#define smp_mb() mb()
-#ifdef CONFIG_X86_PPRO_FENCE
-# define smp_rmb() rmb()
-#else
-# define smp_rmb() barrier()
-#endif
-#ifdef CONFIG_X86_OOSTORE
-# define smp_wmb() wmb()
-#else
-# define smp_wmb() barrier()
-#endif
-#define smp_read_barrier_depends() read_barrier_depends()
-#define set_mb(var, value) do { (void)xchg(&var, value); } while (0)
-#else
-#define smp_mb() barrier()
-#define smp_rmb() barrier()
-#define smp_wmb() barrier()
-#define smp_read_barrier_depends() do { } while (0)
-#define set_mb(var, value) do { var = value; barrier(); } while (0)
-#endif
-
-/*
- * Stop RDTSC speculation. This is needed when you need to use RDTSC
- * (or get_cycles or vread that possibly accesses the TSC) in a defined
- * code region.
- *
- * (Could use an alternative three way for this if there was one.)
- */
-static __always_inline void rdtsc_barrier(void)
-{
- alternative(ASM_NOP3, "mfence", X86_FEATURE_MFENCE_RDTSC);
- alternative(ASM_NOP3, "lfence", X86_FEATURE_LFENCE_RDTSC);
-}
-
-/*
- * We handle most unaligned accesses in hardware. On the other hand
- * unaligned DMA can be quite expensive on some Nehalem processors.
- *
- * Based on this we disable the IP header alignment in network drivers.
- */
-#define NET_IP_ALIGN 0
-#endif /* _ASM_X86_SYSTEM_H */
diff --git a/arch/x86/include/asm/tce.h b/arch/x86/include/asm/tce.h
deleted file mode 100644
index 7a6677c1a715..000000000000
--- a/arch/x86/include/asm/tce.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * This file is derived from asm-powerpc/tce.h.
- *
- * Copyright (C) IBM Corporation, 2006
- *
- * Author: Muli Ben-Yehuda <muli@il.ibm.com>
- * Author: Jon Mason <jdmason@us.ibm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef _ASM_X86_TCE_H
-#define _ASM_X86_TCE_H
-
-extern unsigned int specified_table_size;
-struct iommu_table;
-
-#define TCE_ENTRY_SIZE 8 /* in bytes */
-
-#define TCE_READ_SHIFT 0
-#define TCE_WRITE_SHIFT 1
-#define TCE_HUBID_SHIFT 2 /* unused */
-#define TCE_RSVD_SHIFT 8 /* unused */
-#define TCE_RPN_SHIFT 12
-#define TCE_UNUSED_SHIFT 48 /* unused */
-
-#define TCE_RPN_MASK 0x0000fffffffff000ULL
-
-extern void tce_build(struct iommu_table *tbl, unsigned long index,
- unsigned int npages, unsigned long uaddr, int direction);
-extern void tce_free(struct iommu_table *tbl, long index, unsigned int npages);
-extern void * __init alloc_tce_table(void);
-extern void __init free_tce_table(void *tbl);
-extern int __init build_tce_table(struct pci_dev *dev, void __iomem *bbar);
-
-#endif /* _ASM_X86_TCE_H */
diff --git a/arch/x86/include/asm/tdx.h b/arch/x86/include/asm/tdx.h
new file mode 100644
index 000000000000..28d889c9aa16
--- /dev/null
+++ b/arch/x86/include/asm/tdx.h
@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (C) 2021-2022 Intel Corporation */
+#ifndef _ASM_X86_TDX_H
+#define _ASM_X86_TDX_H
+
+#include <linux/init.h>
+#include <linux/bits.h>
+#include <asm/ptrace.h>
+#include <asm/shared/tdx.h>
+
+/*
+ * SW-defined error codes.
+ *
+ * Bits 47:40 == 0xFF indicate Reserved status code class that never used by
+ * TDX module.
+ */
+#define TDX_ERROR _BITUL(63)
+#define TDX_SW_ERROR (TDX_ERROR | GENMASK_ULL(47, 40))
+#define TDX_SEAMCALL_VMFAILINVALID (TDX_SW_ERROR | _UL(0xFFFF0000))
+
+#ifndef __ASSEMBLY__
+
+/*
+ * Used to gather the output registers values of the TDCALL and SEAMCALL
+ * instructions when requesting services from the TDX module.
+ *
+ * This is a software only structure and not part of the TDX module/VMM ABI.
+ */
+struct tdx_module_output {
+ u64 rcx;
+ u64 rdx;
+ u64 r8;
+ u64 r9;
+ u64 r10;
+ u64 r11;
+};
+
+/*
+ * Used by the #VE exception handler to gather the #VE exception
+ * info from the TDX module. This is a software only structure
+ * and not part of the TDX module/VMM ABI.
+ */
+struct ve_info {
+ u64 exit_reason;
+ u64 exit_qual;
+ /* Guest Linear (virtual) Address */
+ u64 gla;
+ /* Guest Physical Address */
+ u64 gpa;
+ u32 instr_len;
+ u32 instr_info;
+};
+
+#ifdef CONFIG_INTEL_TDX_GUEST
+
+void __init tdx_early_init(void);
+
+/* Used to communicate with the TDX module */
+u64 __tdx_module_call(u64 fn, u64 rcx, u64 rdx, u64 r8, u64 r9,
+ struct tdx_module_output *out);
+
+void tdx_get_ve_info(struct ve_info *ve);
+
+bool tdx_handle_virt_exception(struct pt_regs *regs, struct ve_info *ve);
+
+void tdx_safe_halt(void);
+
+bool tdx_early_handle_ve(struct pt_regs *regs);
+
+int tdx_mcall_get_report0(u8 *reportdata, u8 *tdreport);
+
+#else
+
+static inline void tdx_early_init(void) { };
+static inline void tdx_safe_halt(void) { };
+
+static inline bool tdx_early_handle_ve(struct pt_regs *regs) { return false; }
+
+#endif /* CONFIG_INTEL_TDX_GUEST */
+
+#if defined(CONFIG_KVM_GUEST) && defined(CONFIG_INTEL_TDX_GUEST)
+long tdx_kvm_hypercall(unsigned int nr, unsigned long p1, unsigned long p2,
+ unsigned long p3, unsigned long p4);
+#else
+static inline long tdx_kvm_hypercall(unsigned int nr, unsigned long p1,
+ unsigned long p2, unsigned long p3,
+ unsigned long p4)
+{
+ return -ENODEV;
+}
+#endif /* CONFIG_INTEL_TDX_GUEST && CONFIG_KVM_GUEST */
+#endif /* !__ASSEMBLY__ */
+#endif /* _ASM_X86_TDX_H */
diff --git a/arch/x86/include/asm/termbits.h b/arch/x86/include/asm/termbits.h
deleted file mode 100644
index 3935b106de79..000000000000
--- a/arch/x86/include/asm/termbits.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/termbits.h>
diff --git a/arch/x86/include/asm/termios.h b/arch/x86/include/asm/termios.h
deleted file mode 100644
index 280d78a9d966..000000000000
--- a/arch/x86/include/asm/termios.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/termios.h>
diff --git a/arch/x86/include/asm/text-patching.h b/arch/x86/include/asm/text-patching.h
new file mode 100644
index 000000000000..29832c338cdc
--- /dev/null
+++ b/arch/x86/include/asm/text-patching.h
@@ -0,0 +1,220 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_TEXT_PATCHING_H
+#define _ASM_X86_TEXT_PATCHING_H
+
+#include <linux/types.h>
+#include <linux/stddef.h>
+#include <asm/ptrace.h>
+
+struct paravirt_patch_site;
+#ifdef CONFIG_PARAVIRT
+void apply_paravirt(struct paravirt_patch_site *start,
+ struct paravirt_patch_site *end);
+#else
+static inline void apply_paravirt(struct paravirt_patch_site *start,
+ struct paravirt_patch_site *end)
+{}
+#define __parainstructions NULL
+#define __parainstructions_end NULL
+#endif
+
+/*
+ * Currently, the max observed size in the kernel code is
+ * JUMP_LABEL_NOP_SIZE/RELATIVEJUMP_SIZE, which are 5.
+ * Raise it if needed.
+ */
+#define POKE_MAX_OPCODE_SIZE 5
+
+extern void text_poke_early(void *addr, const void *opcode, size_t len);
+
+/*
+ * Clear and restore the kernel write-protection flag on the local CPU.
+ * Allows the kernel to edit read-only pages.
+ * Side-effect: any interrupt handler running between save and restore will have
+ * the ability to write to read-only pages.
+ *
+ * Warning:
+ * Code patching in the UP case is safe if NMIs and MCE handlers are stopped and
+ * no thread can be preempted in the instructions being modified (no iret to an
+ * invalid instruction possible) or if the instructions are changed from a
+ * consistent state to another consistent state atomically.
+ * On the local CPU you need to be protected against NMI or MCE handlers seeing
+ * an inconsistent instruction while you patch.
+ */
+extern void *text_poke(void *addr, const void *opcode, size_t len);
+extern void text_poke_sync(void);
+extern void *text_poke_kgdb(void *addr, const void *opcode, size_t len);
+extern void *text_poke_copy(void *addr, const void *opcode, size_t len);
+extern void *text_poke_copy_locked(void *addr, const void *opcode, size_t len, bool core_ok);
+extern void *text_poke_set(void *addr, int c, size_t len);
+extern int poke_int3_handler(struct pt_regs *regs);
+extern void text_poke_bp(void *addr, const void *opcode, size_t len, const void *emulate);
+
+extern void text_poke_queue(void *addr, const void *opcode, size_t len, const void *emulate);
+extern void text_poke_finish(void);
+
+#define INT3_INSN_SIZE 1
+#define INT3_INSN_OPCODE 0xCC
+
+#define RET_INSN_SIZE 1
+#define RET_INSN_OPCODE 0xC3
+
+#define CALL_INSN_SIZE 5
+#define CALL_INSN_OPCODE 0xE8
+
+#define JMP32_INSN_SIZE 5
+#define JMP32_INSN_OPCODE 0xE9
+
+#define JMP8_INSN_SIZE 2
+#define JMP8_INSN_OPCODE 0xEB
+
+#define DISP32_SIZE 4
+
+static __always_inline int text_opcode_size(u8 opcode)
+{
+ int size = 0;
+
+#define __CASE(insn) \
+ case insn##_INSN_OPCODE: size = insn##_INSN_SIZE; break
+
+ switch(opcode) {
+ __CASE(INT3);
+ __CASE(RET);
+ __CASE(CALL);
+ __CASE(JMP32);
+ __CASE(JMP8);
+ }
+
+#undef __CASE
+
+ return size;
+}
+
+union text_poke_insn {
+ u8 text[POKE_MAX_OPCODE_SIZE];
+ struct {
+ u8 opcode;
+ s32 disp;
+ } __attribute__((packed));
+};
+
+static __always_inline
+void __text_gen_insn(void *buf, u8 opcode, const void *addr, const void *dest, int size)
+{
+ union text_poke_insn *insn = buf;
+
+ BUG_ON(size < text_opcode_size(opcode));
+
+ /*
+ * Hide the addresses to avoid the compiler folding in constants when
+ * referencing code, these can mess up annotations like
+ * ANNOTATE_NOENDBR.
+ */
+ OPTIMIZER_HIDE_VAR(insn);
+ OPTIMIZER_HIDE_VAR(addr);
+ OPTIMIZER_HIDE_VAR(dest);
+
+ insn->opcode = opcode;
+
+ if (size > 1) {
+ insn->disp = (long)dest - (long)(addr + size);
+ if (size == 2) {
+ /*
+ * Ensure that for JMP8 the displacement
+ * actually fits the signed byte.
+ */
+ BUG_ON((insn->disp >> 31) != (insn->disp >> 7));
+ }
+ }
+}
+
+static __always_inline
+void *text_gen_insn(u8 opcode, const void *addr, const void *dest)
+{
+ static union text_poke_insn insn; /* per instance */
+ __text_gen_insn(&insn, opcode, addr, dest, text_opcode_size(opcode));
+ return &insn.text;
+}
+
+extern int after_bootmem;
+extern __ro_after_init struct mm_struct *poking_mm;
+extern __ro_after_init unsigned long poking_addr;
+
+#ifndef CONFIG_UML_X86
+static __always_inline
+void int3_emulate_jmp(struct pt_regs *regs, unsigned long ip)
+{
+ regs->ip = ip;
+}
+
+static __always_inline
+void int3_emulate_push(struct pt_regs *regs, unsigned long val)
+{
+ /*
+ * The int3 handler in entry_64.S adds a gap between the
+ * stack where the break point happened, and the saving of
+ * pt_regs. We can extend the original stack because of
+ * this gap. See the idtentry macro's create_gap option.
+ *
+ * Similarly entry_32.S will have a gap on the stack for (any) hardware
+ * exception and pt_regs; see FIXUP_FRAME.
+ */
+ regs->sp -= sizeof(unsigned long);
+ *(unsigned long *)regs->sp = val;
+}
+
+static __always_inline
+unsigned long int3_emulate_pop(struct pt_regs *regs)
+{
+ unsigned long val = *(unsigned long *)regs->sp;
+ regs->sp += sizeof(unsigned long);
+ return val;
+}
+
+static __always_inline
+void int3_emulate_call(struct pt_regs *regs, unsigned long func)
+{
+ int3_emulate_push(regs, regs->ip - INT3_INSN_SIZE + CALL_INSN_SIZE);
+ int3_emulate_jmp(regs, func);
+}
+
+static __always_inline
+void int3_emulate_ret(struct pt_regs *regs)
+{
+ unsigned long ip = int3_emulate_pop(regs);
+ int3_emulate_jmp(regs, ip);
+}
+
+static __always_inline
+void int3_emulate_jcc(struct pt_regs *regs, u8 cc, unsigned long ip, unsigned long disp)
+{
+ static const unsigned long jcc_mask[6] = {
+ [0] = X86_EFLAGS_OF,
+ [1] = X86_EFLAGS_CF,
+ [2] = X86_EFLAGS_ZF,
+ [3] = X86_EFLAGS_CF | X86_EFLAGS_ZF,
+ [4] = X86_EFLAGS_SF,
+ [5] = X86_EFLAGS_PF,
+ };
+
+ bool invert = cc & 1;
+ bool match;
+
+ if (cc < 0xc) {
+ match = regs->flags & jcc_mask[cc >> 1];
+ } else {
+ match = ((regs->flags & X86_EFLAGS_SF) >> X86_EFLAGS_SF_BIT) ^
+ ((regs->flags & X86_EFLAGS_OF) >> X86_EFLAGS_OF_BIT);
+ if (cc >= 0xe)
+ match = match || (regs->flags & X86_EFLAGS_ZF);
+ }
+
+ if ((match && !invert) || (!match && invert))
+ ip += disp;
+
+ int3_emulate_jmp(regs, ip);
+}
+
+#endif /* !CONFIG_UML_X86 */
+
+#endif /* _ASM_X86_TEXT_PATCHING_H */
diff --git a/arch/x86/include/asm/thermal.h b/arch/x86/include/asm/thermal.h
new file mode 100644
index 000000000000..91a7b6687c3b
--- /dev/null
+++ b/arch/x86/include/asm/thermal.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_THERMAL_H
+#define _ASM_X86_THERMAL_H
+
+#ifdef CONFIG_X86_THERMAL_VECTOR
+void therm_lvt_init(void);
+void intel_init_thermal(struct cpuinfo_x86 *c);
+bool x86_thermal_enabled(void);
+void intel_thermal_interrupt(void);
+#else
+static inline void therm_lvt_init(void) { }
+static inline void intel_init_thermal(struct cpuinfo_x86 *c) { }
+#endif
+
+#endif /* _ASM_X86_THERMAL_H */
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index 1f2e61e28981..f1cccba52eb9 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/* thread_info.h: low-level thread information
*
* Copyright (C) 2002 David Howells (dhowells@redhat.com)
@@ -9,56 +10,63 @@
#include <linux/compiler.h>
#include <asm/page.h>
+#include <asm/percpu.h>
#include <asm/types.h>
/*
+ * TOP_OF_KERNEL_STACK_PADDING is a number of unused bytes that we
+ * reserve at the top of the kernel stack. We do it because of a nasty
+ * 32-bit corner case. On x86_32, the hardware stack frame is
+ * variable-length. Except for vm86 mode, struct pt_regs assumes a
+ * maximum-length frame. If we enter from CPL 0, the top 8 bytes of
+ * pt_regs don't actually exist. Ordinarily this doesn't matter, but it
+ * does in at least one case:
+ *
+ * If we take an NMI early enough in SYSENTER, then we can end up with
+ * pt_regs that extends above sp0. On the way out, in the espfix code,
+ * we can read the saved SS value, but that value will be above sp0.
+ * Without this offset, that can result in a page fault. (We are
+ * careful that, in this case, the value we read doesn't matter.)
+ *
+ * In vm86 mode, the hardware frame is much longer still, so add 16
+ * bytes to make room for the real-mode segments.
+ *
+ * x86_64 has a fixed-length stack frame.
+ */
+#ifdef CONFIG_X86_32
+# ifdef CONFIG_VM86
+# define TOP_OF_KERNEL_STACK_PADDING 16
+# else
+# define TOP_OF_KERNEL_STACK_PADDING 8
+# endif
+#else
+# define TOP_OF_KERNEL_STACK_PADDING 0
+#endif
+
+/*
* low level task data that entry.S needs immediate access to
* - this struct should fit entirely inside of one cache line
* - this struct shares the supervisor stack pages
*/
#ifndef __ASSEMBLY__
struct task_struct;
-struct exec_domain;
-#include <asm/processor.h>
-#include <asm/ftrace.h>
-#include <asm/atomic.h>
+#include <asm/cpufeature.h>
+#include <linux/atomic.h>
struct thread_info {
- struct task_struct *task; /* main task structure */
- struct exec_domain *exec_domain; /* execution domain */
- __u32 flags; /* low level flags */
- __u32 status; /* thread synchronous flags */
- __u32 cpu; /* current CPU */
- int preempt_count; /* 0 => preemptable,
- <0 => BUG */
- mm_segment_t addr_limit;
- struct restart_block restart_block;
- void __user *sysenter_return;
-#ifdef CONFIG_X86_32
- unsigned long previous_esp; /* ESP of the previous stack in
- case of nested (IRQ) stacks
- */
- __u8 supervisor_stack[0];
+ unsigned long flags; /* low level flags */
+ unsigned long syscall_work; /* SYSCALL_WORK_ flags */
+ u32 status; /* thread synchronous flags */
+#ifdef CONFIG_SMP
+ u32 cpu; /* current CPU */
#endif
- int uaccess_err;
};
#define INIT_THREAD_INFO(tsk) \
{ \
- .task = &tsk, \
- .exec_domain = &default_exec_domain, \
.flags = 0, \
- .cpu = 0, \
- .preempt_count = INIT_PREEMPT_COUNT, \
- .addr_limit = KERNEL_DS, \
- .restart_block = { \
- .fn = do_no_restart_syscall, \
- }, \
}
-#define init_thread_info (init_thread_union.thread_info)
-#define init_stack (init_thread_union.stack)
-
#else /* !__ASSEMBLY__ */
#include <asm/asm-offsets.h>
@@ -69,110 +77,77 @@ struct thread_info {
* thread information flags
* - these are process state flags that various assembly files
* may need to access
- * - pending work-to-be-done flags are in LSW
- * - other flags in MSW
- * Warning: layout of LSW is hardcoded in entry.S
*/
-#define TIF_SYSCALL_TRACE 0 /* syscall trace active */
#define TIF_NOTIFY_RESUME 1 /* callback before returning to user */
#define TIF_SIGPENDING 2 /* signal pending */
#define TIF_NEED_RESCHED 3 /* rescheduling necessary */
#define TIF_SINGLESTEP 4 /* reenable singlestep on user return*/
-#define TIF_IRET 5 /* force IRET */
-#define TIF_SYSCALL_EMU 6 /* syscall emulation active */
-#define TIF_SYSCALL_AUDIT 7 /* syscall auditing active */
-#define TIF_SECCOMP 8 /* secure computing */
-#define TIF_MCE_NOTIFY 10 /* notify userspace of an MCE */
+#define TIF_SSBD 5 /* Speculative store bypass disable */
+#define TIF_SPEC_IB 9 /* Indirect branch speculation mitigation */
+#define TIF_SPEC_L1D_FLUSH 10 /* Flush L1D on mm switches (processes) */
#define TIF_USER_RETURN_NOTIFY 11 /* notify kernel of userspace return */
+#define TIF_UPROBE 12 /* breakpointed or singlestepping */
+#define TIF_PATCH_PENDING 13 /* pending live patching update */
+#define TIF_NEED_FPU_LOAD 14 /* load FPU on return to userspace */
+#define TIF_NOCPUID 15 /* CPUID is not accessible in userland */
#define TIF_NOTSC 16 /* TSC is not accessible in userland */
-#define TIF_IA32 17 /* 32bit process */
-#define TIF_FORK 18 /* ret_from_fork */
+#define TIF_NOTIFY_SIGNAL 17 /* signal notifications exist */
#define TIF_MEMDIE 20 /* is terminating due to OOM killer */
-#define TIF_DEBUG 21 /* uses debug registers */
+#define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */
#define TIF_IO_BITMAP 22 /* uses I/O bitmap */
-#define TIF_FREEZE 23 /* is freezing for suspend */
+#define TIF_SPEC_FORCE_UPDATE 23 /* Force speculation MSR update in context switch */
#define TIF_FORCED_TF 24 /* true if TF in eflags artificially */
#define TIF_BLOCKSTEP 25 /* set when we want DEBUGCTLMSR_BTF */
#define TIF_LAZY_MMU_UPDATES 27 /* task is updating the mmu lazily */
-#define TIF_SYSCALL_TRACEPOINT 28 /* syscall tracepoint instrumentation */
+#define TIF_ADDR32 29 /* 32-bit address space on 64 bits */
-#define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE)
#define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME)
#define _TIF_SIGPENDING (1 << TIF_SIGPENDING)
-#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
#define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED)
-#define _TIF_IRET (1 << TIF_IRET)
-#define _TIF_SYSCALL_EMU (1 << TIF_SYSCALL_EMU)
-#define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT)
-#define _TIF_SECCOMP (1 << TIF_SECCOMP)
-#define _TIF_MCE_NOTIFY (1 << TIF_MCE_NOTIFY)
+#define _TIF_SINGLESTEP (1 << TIF_SINGLESTEP)
+#define _TIF_SSBD (1 << TIF_SSBD)
+#define _TIF_SPEC_IB (1 << TIF_SPEC_IB)
+#define _TIF_SPEC_L1D_FLUSH (1 << TIF_SPEC_L1D_FLUSH)
#define _TIF_USER_RETURN_NOTIFY (1 << TIF_USER_RETURN_NOTIFY)
+#define _TIF_UPROBE (1 << TIF_UPROBE)
+#define _TIF_PATCH_PENDING (1 << TIF_PATCH_PENDING)
+#define _TIF_NEED_FPU_LOAD (1 << TIF_NEED_FPU_LOAD)
+#define _TIF_NOCPUID (1 << TIF_NOCPUID)
#define _TIF_NOTSC (1 << TIF_NOTSC)
-#define _TIF_IA32 (1 << TIF_IA32)
-#define _TIF_FORK (1 << TIF_FORK)
-#define _TIF_DEBUG (1 << TIF_DEBUG)
+#define _TIF_NOTIFY_SIGNAL (1 << TIF_NOTIFY_SIGNAL)
+#define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG)
#define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP)
-#define _TIF_FREEZE (1 << TIF_FREEZE)
+#define _TIF_SPEC_FORCE_UPDATE (1 << TIF_SPEC_FORCE_UPDATE)
#define _TIF_FORCED_TF (1 << TIF_FORCED_TF)
#define _TIF_BLOCKSTEP (1 << TIF_BLOCKSTEP)
#define _TIF_LAZY_MMU_UPDATES (1 << TIF_LAZY_MMU_UPDATES)
-#define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT)
-
-/* work to do in syscall_trace_enter() */
-#define _TIF_WORK_SYSCALL_ENTRY \
- (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT | \
- _TIF_SECCOMP | _TIF_SINGLESTEP | _TIF_SYSCALL_TRACEPOINT)
-
-/* work to do in syscall_trace_leave() */
-#define _TIF_WORK_SYSCALL_EXIT \
- (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | _TIF_SINGLESTEP | \
- _TIF_SYSCALL_TRACEPOINT)
-
-/* work to do on interrupt/exception return */
-#define _TIF_WORK_MASK \
- (0x0000FFFF & \
- ~(_TIF_SYSCALL_TRACE|_TIF_SYSCALL_AUDIT| \
- _TIF_SINGLESTEP|_TIF_SECCOMP|_TIF_SYSCALL_EMU))
-
-/* work to do on any return to user space */
-#define _TIF_ALLWORK_MASK \
- ((0x0000FFFF & ~_TIF_SECCOMP) | _TIF_SYSCALL_TRACEPOINT)
-
-/* Only used for 64 bit */
-#define _TIF_DO_NOTIFY_MASK \
- (_TIF_SIGPENDING | _TIF_MCE_NOTIFY | _TIF_NOTIFY_RESUME | \
- _TIF_USER_RETURN_NOTIFY)
+#define _TIF_ADDR32 (1 << TIF_ADDR32)
/* flags to check in __switch_to() */
-#define _TIF_WORK_CTXSW \
- (_TIF_IO_BITMAP|_TIF_NOTSC|_TIF_BLOCKSTEP)
-
-#define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY)
-#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW|_TIF_DEBUG)
+#define _TIF_WORK_CTXSW_BASE \
+ (_TIF_NOCPUID | _TIF_NOTSC | _TIF_BLOCKSTEP | \
+ _TIF_SSBD | _TIF_SPEC_FORCE_UPDATE)
-#define PREEMPT_ACTIVE 0x10000000
-
-/* thread information allocation */
-#ifdef CONFIG_DEBUG_STACK_USAGE
-#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
+/*
+ * Avoid calls to __switch_to_xtra() on UP as STIBP is not evaluated.
+ */
+#ifdef CONFIG_SMP
+# define _TIF_WORK_CTXSW (_TIF_WORK_CTXSW_BASE | _TIF_SPEC_IB)
#else
-#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK)
+# define _TIF_WORK_CTXSW (_TIF_WORK_CTXSW_BASE)
#endif
-#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
+#ifdef CONFIG_X86_IOPL_IOPERM
+# define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW| _TIF_USER_RETURN_NOTIFY | \
+ _TIF_IO_BITMAP)
+#else
+# define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW| _TIF_USER_RETURN_NOTIFY)
+#endif
-#define alloc_thread_info_node(tsk, node) \
-({ \
- struct page *page = alloc_pages_node(node, THREAD_FLAGS, \
- THREAD_ORDER); \
- struct thread_info *ret = page ? page_address(page) : NULL; \
- \
- ret; \
-})
+#define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
-#ifdef CONFIG_X86_32
+#define STACK_WARN (THREAD_SIZE/8)
-#define STACK_WARN (THREAD_SIZE/8)
/*
* macros/functions for gaining access to the thread information structure
*
@@ -180,60 +155,57 @@ struct thread_info {
*/
#ifndef __ASSEMBLY__
-
-/* how to get the current stack pointer from C */
-register unsigned long current_stack_pointer asm("esp") __used;
-
-/* how to get the thread information struct from C */
-static inline struct thread_info *current_thread_info(void)
-{
- return (struct thread_info *)
- (current_stack_pointer & ~(THREAD_SIZE - 1));
-}
-
-#else /* !__ASSEMBLY__ */
-
-/* how to get the thread information struct from ASM */
-#define GET_THREAD_INFO(reg) \
- movl $-THREAD_SIZE, reg; \
- andl %esp, reg
-
-/* use this one if reg already contains %esp */
-#define GET_THREAD_INFO_WITH_ESP(reg) \
- andl $-THREAD_SIZE, reg
-
-#endif
-
-#else /* X86_32 */
-
-#include <asm/percpu.h>
-#define KERNEL_STACK_OFFSET (5*8)
-
/*
- * macros/functions for gaining access to the thread information structure
- * preempt_count needs to be 1 initially, until the scheduler is functional.
+ * Walks up the stack frames to make sure that the specified object is
+ * entirely contained by a single stack frame.
+ *
+ * Returns:
+ * GOOD_FRAME if within a frame
+ * BAD_STACK if placed across a frame boundary (or outside stack)
+ * NOT_STACK unable to determine (no frame pointers, etc)
+ *
+ * This function reads pointers from the stack and dereferences them. The
+ * pointers may not have their KMSAN shadow set up properly, which may result
+ * in false positive reports. Disable instrumentation to avoid those.
*/
-#ifndef __ASSEMBLY__
-DECLARE_PER_CPU(unsigned long, kernel_stack);
-
-static inline struct thread_info *current_thread_info(void)
+__no_kmsan_checks
+static inline int arch_within_stack_frames(const void * const stack,
+ const void * const stackend,
+ const void *obj, unsigned long len)
{
- struct thread_info *ti;
- ti = (void *)(percpu_read_stable(kernel_stack) +
- KERNEL_STACK_OFFSET - THREAD_SIZE);
- return ti;
-}
-
-#else /* !__ASSEMBLY__ */
-
-/* how to get the thread information struct from ASM */
-#define GET_THREAD_INFO(reg) \
- movq PER_CPU_VAR(kernel_stack),reg ; \
- subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg
-
+#if defined(CONFIG_FRAME_POINTER)
+ const void *frame = NULL;
+ const void *oldframe;
+
+ oldframe = __builtin_frame_address(1);
+ if (oldframe)
+ frame = __builtin_frame_address(2);
+ /*
+ * low ----------------------------------------------> high
+ * [saved bp][saved ip][args][local vars][saved bp][saved ip]
+ * ^----------------^
+ * allow copies only within here
+ */
+ while (stack <= frame && frame < stackend) {
+ /*
+ * If obj + len extends past the last frame, this
+ * check won't pass and the next frame will be 0,
+ * causing us to bail out and correctly report
+ * the copy as invalid.
+ */
+ if (obj + len <= frame)
+ return obj >= oldframe + 2 * sizeof(void *) ?
+ GOOD_FRAME : BAD_STACK;
+ oldframe = frame;
+ frame = *(const void * const *)frame;
+ }
+ return BAD_STACK;
+#else
+ return NOT_STACK;
#endif
+}
-#endif /* !X86_32 */
+#endif /* !__ASSEMBLY__ */
/*
* Thread-synchronous status.
@@ -242,29 +214,29 @@ static inline struct thread_info *current_thread_info(void)
* ever touches our thread-synchronous status, so we don't
* have to worry about atomic accesses.
*/
-#define TS_USEDFPU 0x0001 /* FPU was used by this task
- this quantum (SMP) */
#define TS_COMPAT 0x0002 /* 32bit syscall active (64BIT)*/
-#define TS_POLLING 0x0004 /* idle task polling need_resched,
- skip sending interrupt */
-#define TS_RESTORE_SIGMASK 0x0008 /* restore signal mask in do_signal() */
-
-#define tsk_is_polling(t) (task_thread_info(t)->status & TS_POLLING)
#ifndef __ASSEMBLY__
-#define HAVE_SET_RESTORE_SIGMASK 1
-static inline void set_restore_sigmask(void)
-{
- struct thread_info *ti = current_thread_info();
- ti->status |= TS_RESTORE_SIGMASK;
- set_bit(TIF_SIGPENDING, (unsigned long *)&ti->flags);
-}
-#endif /* !__ASSEMBLY__ */
+#ifdef CONFIG_COMPAT
+#define TS_I386_REGS_POKED 0x0004 /* regs poked by 32-bit ptracer */
+
+#define arch_set_restart_data(restart) \
+ do { restart->arch_data = current_thread_info()->status; } while (0)
+
+#endif
+
+#ifdef CONFIG_X86_32
+#define in_ia32_syscall() true
+#else
+#define in_ia32_syscall() (IS_ENABLED(CONFIG_IA32_EMULATION) && \
+ current_thread_info()->status & TS_COMPAT)
+#endif
-#ifndef __ASSEMBLY__
extern void arch_task_cache_init(void);
-extern void free_thread_info(struct thread_info *ti);
extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src);
-#define arch_task_cache_init arch_task_cache_init
-#endif
+extern void arch_release_task_struct(struct task_struct *tsk);
+extern void arch_setup_new_exec(void);
+#define arch_setup_new_exec arch_setup_new_exec
+#endif /* !__ASSEMBLY__ */
+
#endif /* _ASM_X86_THREAD_INFO_H */
diff --git a/arch/x86/include/asm/time.h b/arch/x86/include/asm/time.h
index 7bdec4e9b739..a53961c64a56 100644
--- a/arch/x86/include/asm/time.h
+++ b/arch/x86/include/asm/time.h
@@ -1,10 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_TIME_H
#define _ASM_X86_TIME_H
-extern void hpet_time_init(void);
-
+#include <linux/clocksource.h>
#include <asm/mc146818rtc.h>
+extern void hpet_time_init(void);
extern void time_init(void);
+extern bool pit_timer_init(void);
+extern bool tsc_clocksource_watchdog_disabled(void);
+
+extern struct clock_event_device *global_clock_event;
#endif /* _ASM_X86_TIME_H */
diff --git a/arch/x86/include/asm/timer.h b/arch/x86/include/asm/timer.h
index fa7b9176b76c..7365dd4acffb 100644
--- a/arch/x86/include/asm/timer.h
+++ b/arch/x86/include/asm/timer.h
@@ -1,62 +1,38 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_TIMER_H
#define _ASM_X86_TIMER_H
-#include <linux/init.h>
#include <linux/pm.h>
#include <linux/percpu.h>
#include <linux/interrupt.h>
+#include <linux/math64.h>
#define TICK_SIZE (tick_nsec / 1000)
unsigned long long native_sched_clock(void);
-extern int recalibrate_cpu_khz(void);
+extern void recalibrate_cpu_khz(void);
extern int no_timer_check;
-/* Accelerators for sched_clock()
- * convert from cycles(64bits) => nanoseconds (64bits)
- * basic equation:
- * ns = cycles / (freq / ns_per_sec)
- * ns = cycles * (ns_per_sec / freq)
- * ns = cycles * (10^9 / (cpu_khz * 10^3))
- * ns = cycles * (10^6 / cpu_khz)
- *
- * Then we use scaling math (suggested by george@mvista.com) to get:
- * ns = cycles * (10^6 * SC / cpu_khz) / SC
- * ns = cycles * cyc2ns_scale / SC
+extern bool using_native_sched_clock(void);
+
+/*
+ * We use the full linear equation: f(x) = a + b*x, in order to allow
+ * a continuous function in the face of dynamic freq changes.
*
- * And since SC is a constant power of two, we can convert the div
- * into a shift.
+ * Continuity means that when our frequency changes our slope (b); we want to
+ * ensure that: f(t) == f'(t), which gives: a + b*t == a' + b'*t.
*
- * We can use khz divisor instead of mhz to keep a better precision, since
- * cyc2ns_scale is limited to 10^6 * 2^10, which fits in 32 bits.
- * (mathieu.desnoyers@polymtl.ca)
+ * Without an offset (a) the above would not be possible.
*
- * -johnstul@us.ibm.com "math is hard, lets go shopping!"
+ * See the comment near cycles_2_ns() for details on how we compute (b).
*/
-
-DECLARE_PER_CPU(unsigned long, cyc2ns);
-DECLARE_PER_CPU(unsigned long long, cyc2ns_offset);
-
-#define CYC2NS_SCALE_FACTOR 10 /* 2^10, carefully chosen */
-
-static inline unsigned long long __cycles_2_ns(unsigned long long cyc)
-{
- int cpu = smp_processor_id();
- unsigned long long ns = per_cpu(cyc2ns_offset, cpu);
- ns += cyc * per_cpu(cyc2ns, cpu) >> CYC2NS_SCALE_FACTOR;
- return ns;
-}
-
-static inline unsigned long long cycles_2_ns(unsigned long long cyc)
-{
- unsigned long long ns;
- unsigned long flags;
-
- local_irq_save(flags);
- ns = __cycles_2_ns(cyc);
- local_irq_restore(flags);
-
- return ns;
-}
+struct cyc2ns_data {
+ u32 cyc2ns_mul;
+ u32 cyc2ns_shift;
+ u64 cyc2ns_offset;
+}; /* 16 bytes */
+
+extern void cyc2ns_read_begin(struct cyc2ns_data *);
+extern void cyc2ns_read_end(void);
#endif /* _ASM_X86_TIMER_H */
diff --git a/arch/x86/include/asm/timex.h b/arch/x86/include/asm/timex.h
index 1375cfc93960..956e4145311b 100644
--- a/arch/x86/include/asm/timex.h
+++ b/arch/x86/include/asm/timex.h
@@ -1,9 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_TIMEX_H
#define _ASM_X86_TIMEX_H
#include <asm/processor.h>
#include <asm/tsc.h>
+static inline unsigned long random_get_entropy(void)
+{
+ if (!IS_ENABLED(CONFIG_X86_TSC) &&
+ !cpu_feature_enabled(X86_FEATURE_TSC))
+ return random_get_entropy_fallback();
+ return rdtsc();
+}
+#define random_get_entropy random_get_entropy
+
/* Assume we use the PIT time source for the clock tick */
#define CLOCK_TICK_RATE PIT_TICK_RATE
diff --git a/arch/x86/include/asm/tlb.h b/arch/x86/include/asm/tlb.h
index 829215fef9ee..580636cdc257 100644
--- a/arch/x86/include/asm/tlb.h
+++ b/arch/x86/include/asm/tlb.h
@@ -1,11 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_TLB_H
#define _ASM_X86_TLB_H
-#define tlb_start_vma(tlb, vma) do { } while (0)
-#define tlb_end_vma(tlb, vma) do { } while (0)
-#define __tlb_remove_tlb_entry(tlb, ptep, address) do { } while (0)
-#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
+#define tlb_flush tlb_flush
+static inline void tlb_flush(struct mmu_gather *tlb);
#include <asm-generic/tlb.h>
+static inline void tlb_flush(struct mmu_gather *tlb)
+{
+ unsigned long start = 0UL, end = TLB_FLUSH_ALL;
+ unsigned int stride_shift = tlb_get_unmap_shift(tlb);
+
+ if (!tlb->fullmm && !tlb->need_flush_all) {
+ start = tlb->start;
+ end = tlb->end;
+ }
+
+ flush_tlb_mm_range(tlb->mm, start, end, stride_shift, tlb->freed_tables);
+}
+
+/*
+ * While x86 architecture in general requires an IPI to perform TLB
+ * shootdown, enablement code for several hypervisors overrides
+ * .flush_tlb_others hook in pv_mmu_ops and implements it by issuing
+ * a hypercall. To keep software pagetable walkers safe in this case we
+ * switch to RCU based table free (MMU_GATHER_RCU_TABLE_FREE). See the comment
+ * below 'ifdef CONFIG_MMU_GATHER_RCU_TABLE_FREE' in include/asm-generic/tlb.h
+ * for more details.
+ */
+static inline void __tlb_remove_table(void *table)
+{
+ free_page_and_swap_cache(table);
+}
+
#endif /* _ASM_X86_TLB_H */
diff --git a/arch/x86/include/asm/tlbbatch.h b/arch/x86/include/asm/tlbbatch.h
new file mode 100644
index 000000000000..1ad56eb3e8a8
--- /dev/null
+++ b/arch/x86/include/asm/tlbbatch.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ARCH_X86_TLBBATCH_H
+#define _ARCH_X86_TLBBATCH_H
+
+#include <linux/cpumask.h>
+
+struct arch_tlbflush_unmap_batch {
+ /*
+ * Each bit set is a CPU that potentially has a TLB entry for one of
+ * the PFNs being flushed..
+ */
+ struct cpumask cpumask;
+};
+
+#endif /* _ARCH_X86_TLBBATCH_H */
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h
index 169be8938b96..75bfaa421030 100644
--- a/arch/x86/include/asm/tlbflush.h
+++ b/arch/x86/include/asm/tlbflush.h
@@ -1,175 +1,413 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_TLBFLUSH_H
#define _ASM_X86_TLBFLUSH_H
-#include <linux/mm.h>
+#include <linux/mm_types.h>
#include <linux/sched.h>
#include <asm/processor.h>
-#include <asm/system.h>
+#include <asm/cpufeature.h>
+#include <asm/special_insns.h>
+#include <asm/smp.h>
+#include <asm/invpcid.h>
+#include <asm/pti.h>
+#include <asm/processor-flags.h>
+#include <asm/pgtable.h>
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else
-#define __flush_tlb() __native_flush_tlb()
-#define __flush_tlb_global() __native_flush_tlb_global()
-#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
-#endif
+void __flush_tlb_all(void);
+
+#define TLB_FLUSH_ALL -1UL
+#define TLB_GENERATION_INVALID 0
+
+void cr4_update_irqsoff(unsigned long set, unsigned long clear);
+unsigned long cr4_read_shadow(void);
-static inline void __native_flush_tlb(void)
+/* Set in this cpu's CR4. */
+static inline void cr4_set_bits_irqsoff(unsigned long mask)
{
- native_write_cr3(native_read_cr3());
+ cr4_update_irqsoff(mask, 0);
}
-static inline void __native_flush_tlb_global(void)
+/* Clear in this cpu's CR4. */
+static inline void cr4_clear_bits_irqsoff(unsigned long mask)
{
- unsigned long flags;
- unsigned long cr4;
-
- /*
- * Read-modify-write to CR4 - protect it from preemption and
- * from interrupts. (Use the raw variant because this code can
- * be called from deep inside debugging code.)
- */
- raw_local_irq_save(flags);
+ cr4_update_irqsoff(0, mask);
+}
- cr4 = native_read_cr4();
- /* clear PGE */
- native_write_cr4(cr4 & ~X86_CR4_PGE);
- /* write old PGE again and flush TLBs */
- native_write_cr4(cr4);
+/* Set in this cpu's CR4. */
+static inline void cr4_set_bits(unsigned long mask)
+{
+ unsigned long flags;
- raw_local_irq_restore(flags);
+ local_irq_save(flags);
+ cr4_set_bits_irqsoff(mask);
+ local_irq_restore(flags);
}
-static inline void __native_flush_tlb_single(unsigned long addr)
+/* Clear in this cpu's CR4. */
+static inline void cr4_clear_bits(unsigned long mask)
{
- asm volatile("invlpg (%0)" ::"r" (addr) : "memory");
+ unsigned long flags;
+
+ local_irq_save(flags);
+ cr4_clear_bits_irqsoff(mask);
+ local_irq_restore(flags);
}
-static inline void __flush_tlb_all(void)
+#ifdef CONFIG_ADDRESS_MASKING
+DECLARE_PER_CPU(u64, tlbstate_untag_mask);
+
+static inline u64 current_untag_mask(void)
{
- if (cpu_has_pge)
- __flush_tlb_global();
- else
- __flush_tlb();
+ return this_cpu_read(tlbstate_untag_mask);
}
+#endif
+
+#ifndef MODULE
+/*
+ * 6 because 6 should be plenty and struct tlb_state will fit in two cache
+ * lines.
+ */
+#define TLB_NR_DYN_ASIDS 6
+
+struct tlb_context {
+ u64 ctx_id;
+ u64 tlb_gen;
+};
+
+struct tlb_state {
+ /*
+ * cpu_tlbstate.loaded_mm should match CR3 whenever interrupts
+ * are on. This means that it may not match current->active_mm,
+ * which will contain the previous user mm when we're in lazy TLB
+ * mode even if we've already switched back to swapper_pg_dir.
+ *
+ * During switch_mm_irqs_off(), loaded_mm will be set to
+ * LOADED_MM_SWITCHING during the brief interrupts-off window
+ * when CR3 and loaded_mm would otherwise be inconsistent. This
+ * is for nmi_uaccess_okay()'s benefit.
+ */
+ struct mm_struct *loaded_mm;
+
+#define LOADED_MM_SWITCHING ((struct mm_struct *)1UL)
+
+ /* Last user mm for optimizing IBPB */
+ union {
+ struct mm_struct *last_user_mm;
+ unsigned long last_user_mm_spec;
+ };
+
+ u16 loaded_mm_asid;
+ u16 next_asid;
+
+ /*
+ * If set we changed the page tables in such a way that we
+ * needed an invalidation of all contexts (aka. PCIDs / ASIDs).
+ * This tells us to go invalidate all the non-loaded ctxs[]
+ * on the next context switch.
+ *
+ * The current ctx was kept up-to-date as it ran and does not
+ * need to be invalidated.
+ */
+ bool invalidate_other;
+
+#ifdef CONFIG_ADDRESS_MASKING
+ /*
+ * Active LAM mode.
+ *
+ * X86_CR3_LAM_U57/U48 shifted right by X86_CR3_LAM_U57_BIT or 0 if LAM
+ * disabled.
+ */
+ u8 lam;
+#endif
+
+ /*
+ * Mask that contains TLB_NR_DYN_ASIDS+1 bits to indicate
+ * the corresponding user PCID needs a flush next time we
+ * switch to it; see SWITCH_TO_USER_CR3.
+ */
+ unsigned short user_pcid_flush_mask;
+
+ /*
+ * Access to this CR4 shadow and to H/W CR4 is protected by
+ * disabling interrupts when modifying either one.
+ */
+ unsigned long cr4;
+
+ /*
+ * This is a list of all contexts that might exist in the TLB.
+ * There is one per ASID that we use, and the ASID (what the
+ * CPU calls PCID) is the index into ctxts.
+ *
+ * For each context, ctx_id indicates which mm the TLB's user
+ * entries came from. As an invariant, the TLB will never
+ * contain entries that are out-of-date as when that mm reached
+ * the tlb_gen in the list.
+ *
+ * To be clear, this means that it's legal for the TLB code to
+ * flush the TLB without updating tlb_gen. This can happen
+ * (for now, at least) due to paravirt remote flushes.
+ *
+ * NB: context 0 is a bit special, since it's also used by
+ * various bits of init code. This is fine -- code that
+ * isn't aware of PCID will end up harmlessly flushing
+ * context 0.
+ */
+ struct tlb_context ctxs[TLB_NR_DYN_ASIDS];
+};
+DECLARE_PER_CPU_ALIGNED(struct tlb_state, cpu_tlbstate);
+
+struct tlb_state_shared {
+ /*
+ * We can be in one of several states:
+ *
+ * - Actively using an mm. Our CPU's bit will be set in
+ * mm_cpumask(loaded_mm) and is_lazy == false;
+ *
+ * - Not using a real mm. loaded_mm == &init_mm. Our CPU's bit
+ * will not be set in mm_cpumask(&init_mm) and is_lazy == false.
+ *
+ * - Lazily using a real mm. loaded_mm != &init_mm, our bit
+ * is set in mm_cpumask(loaded_mm), but is_lazy == true.
+ * We're heuristically guessing that the CR3 load we
+ * skipped more than makes up for the overhead added by
+ * lazy mode.
+ */
+ bool is_lazy;
+};
+DECLARE_PER_CPU_SHARED_ALIGNED(struct tlb_state_shared, cpu_tlbstate_shared);
+
+bool nmi_uaccess_okay(void);
+#define nmi_uaccess_okay nmi_uaccess_okay
-static inline void __flush_tlb_one(unsigned long addr)
+/* Initialize cr4 shadow for this CPU. */
+static inline void cr4_init_shadow(void)
{
- if (cpu_has_invlpg)
- __flush_tlb_single(addr);
- else
- __flush_tlb();
+ this_cpu_write(cpu_tlbstate.cr4, __read_cr4());
}
-#ifdef CONFIG_X86_32
-# define TLB_FLUSH_ALL 0xffffffff
-#else
-# define TLB_FLUSH_ALL -1ULL
-#endif
+extern unsigned long mmu_cr4_features;
+extern u32 *trampoline_cr4_features;
+
+extern void initialize_tlbstate_and_flush(void);
/*
* TLB flushing:
*
- * - flush_tlb() flushes the current mm struct TLBs
* - flush_tlb_all() flushes all processes TLBs
* - flush_tlb_mm(mm) flushes the specified mm context TLB's
* - flush_tlb_page(vma, vmaddr) flushes one page
* - flush_tlb_range(vma, start, end) flushes a range of pages
* - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
- * - flush_tlb_others(cpumask, mm, va) flushes TLBs on other cpus
+ * - flush_tlb_multi(cpumask, info) flushes TLBs on multiple cpus
*
* ..but the i386 has somewhat limited tlb flushing capabilities,
* and page-granular flushes are available only on i486 and up.
- *
- * x86-64 can only flush individual pages or full VMs. For a range flush
- * we always do the full VM. Might be worth trying if for a small
- * range a few INVLPGs in a row are a win.
*/
+struct flush_tlb_info {
+ /*
+ * We support several kinds of flushes.
+ *
+ * - Fully flush a single mm. .mm will be set, .end will be
+ * TLB_FLUSH_ALL, and .new_tlb_gen will be the tlb_gen to
+ * which the IPI sender is trying to catch us up.
+ *
+ * - Partially flush a single mm. .mm will be set, .start and
+ * .end will indicate the range, and .new_tlb_gen will be set
+ * such that the changes between generation .new_tlb_gen-1 and
+ * .new_tlb_gen are entirely contained in the indicated range.
+ *
+ * - Fully flush all mms whose tlb_gens have been updated. .mm
+ * will be NULL, .end will be TLB_FLUSH_ALL, and .new_tlb_gen
+ * will be zero.
+ */
+ struct mm_struct *mm;
+ unsigned long start;
+ unsigned long end;
+ u64 new_tlb_gen;
+ unsigned int initiating_cpu;
+ u8 stride_shift;
+ u8 freed_tables;
+};
+
+void flush_tlb_local(void);
+void flush_tlb_one_user(unsigned long addr);
+void flush_tlb_one_kernel(unsigned long addr);
+void flush_tlb_multi(const struct cpumask *cpumask,
+ const struct flush_tlb_info *info);
+
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#endif
-#ifndef CONFIG_SMP
+#define flush_tlb_mm(mm) \
+ flush_tlb_mm_range(mm, 0UL, TLB_FLUSH_ALL, 0UL, true)
-#define flush_tlb() __flush_tlb()
-#define flush_tlb_all() __flush_tlb_all()
-#define local_flush_tlb() __flush_tlb()
+#define flush_tlb_range(vma, start, end) \
+ flush_tlb_mm_range((vma)->vm_mm, start, end, \
+ ((vma)->vm_flags & VM_HUGETLB) \
+ ? huge_page_shift(hstate_vma(vma)) \
+ : PAGE_SHIFT, false)
-static inline void flush_tlb_mm(struct mm_struct *mm)
+extern void flush_tlb_all(void);
+extern void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
+ unsigned long end, unsigned int stride_shift,
+ bool freed_tables);
+extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
+
+static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long a)
{
- if (mm == current->active_mm)
- __flush_tlb();
+ flush_tlb_mm_range(vma->vm_mm, a, a + PAGE_SIZE, PAGE_SHIFT, false);
}
-static inline void flush_tlb_page(struct vm_area_struct *vma,
- unsigned long addr)
+static inline u64 inc_mm_tlb_gen(struct mm_struct *mm)
{
- if (vma->vm_mm == current->active_mm)
- __flush_tlb_one(addr);
+ /*
+ * Bump the generation count. This also serves as a full barrier
+ * that synchronizes with switch_mm(): callers are required to order
+ * their read of mm_cpumask after their writes to the paging
+ * structures.
+ */
+ return atomic64_inc_return(&mm->context.tlb_gen);
}
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
+static inline void arch_tlbbatch_add_mm(struct arch_tlbflush_unmap_batch *batch,
+ struct mm_struct *mm)
{
- if (vma->vm_mm == current->active_mm)
- __flush_tlb();
+ inc_mm_tlb_gen(mm);
+ cpumask_or(&batch->cpumask, &batch->cpumask, mm_cpumask(mm));
}
-static inline void native_flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm,
- unsigned long va)
+extern void arch_tlbbatch_flush(struct arch_tlbflush_unmap_batch *batch);
+
+static inline bool pte_flags_need_flush(unsigned long oldflags,
+ unsigned long newflags,
+ bool ignore_access)
{
+ /*
+ * Flags that require a flush when cleared but not when they are set.
+ * Only include flags that would not trigger spurious page-faults.
+ * Non-present entries are not cached. Hardware would set the
+ * dirty/access bit if needed without a fault.
+ */
+ const pteval_t flush_on_clear = _PAGE_DIRTY | _PAGE_PRESENT |
+ _PAGE_ACCESSED;
+ const pteval_t software_flags = _PAGE_SOFTW1 | _PAGE_SOFTW2 |
+ _PAGE_SOFTW3 | _PAGE_SOFTW4;
+ const pteval_t flush_on_change = _PAGE_RW | _PAGE_USER | _PAGE_PWT |
+ _PAGE_PCD | _PAGE_PSE | _PAGE_GLOBAL | _PAGE_PAT |
+ _PAGE_PAT_LARGE | _PAGE_PKEY_BIT0 | _PAGE_PKEY_BIT1 |
+ _PAGE_PKEY_BIT2 | _PAGE_PKEY_BIT3 | _PAGE_NX;
+ unsigned long diff = oldflags ^ newflags;
+
+ BUILD_BUG_ON(flush_on_clear & software_flags);
+ BUILD_BUG_ON(flush_on_clear & flush_on_change);
+ BUILD_BUG_ON(flush_on_change & software_flags);
+
+ /* Ignore software flags */
+ diff &= ~software_flags;
+
+ if (ignore_access)
+ diff &= ~_PAGE_ACCESSED;
+
+ /*
+ * Did any of the 'flush_on_clear' flags was clleared set from between
+ * 'oldflags' and 'newflags'?
+ */
+ if (diff & oldflags & flush_on_clear)
+ return true;
+
+ /* Flush on modified flags. */
+ if (diff & flush_on_change)
+ return true;
+
+ /* Ensure there are no flags that were left behind */
+ if (IS_ENABLED(CONFIG_DEBUG_VM) &&
+ (diff & ~(flush_on_clear | software_flags | flush_on_change))) {
+ VM_WARN_ON_ONCE(1);
+ return true;
+ }
+
+ return false;
}
-static inline void reset_lazy_tlbstate(void)
+/*
+ * pte_needs_flush() checks whether permissions were demoted and require a
+ * flush. It should only be used for userspace PTEs.
+ */
+static inline bool pte_needs_flush(pte_t oldpte, pte_t newpte)
{
-}
+ /* !PRESENT -> * ; no need for flush */
+ if (!(pte_flags(oldpte) & _PAGE_PRESENT))
+ return false;
-#else /* SMP */
+ /* PFN changed ; needs flush */
+ if (pte_pfn(oldpte) != pte_pfn(newpte))
+ return true;
-#include <asm/smp.h>
+ /*
+ * check PTE flags; ignore access-bit; see comment in
+ * ptep_clear_flush_young().
+ */
+ return pte_flags_need_flush(pte_flags(oldpte), pte_flags(newpte),
+ true);
+}
+#define pte_needs_flush pte_needs_flush
-#define local_flush_tlb() __flush_tlb()
+/*
+ * huge_pmd_needs_flush() checks whether permissions were demoted and require a
+ * flush. It should only be used for userspace huge PMDs.
+ */
+static inline bool huge_pmd_needs_flush(pmd_t oldpmd, pmd_t newpmd)
+{
+ /* !PRESENT -> * ; no need for flush */
+ if (!(pmd_flags(oldpmd) & _PAGE_PRESENT))
+ return false;
-extern void flush_tlb_all(void);
-extern void flush_tlb_current_task(void);
-extern void flush_tlb_mm(struct mm_struct *);
-extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
+ /* PFN changed ; needs flush */
+ if (pmd_pfn(oldpmd) != pmd_pfn(newpmd))
+ return true;
-#define flush_tlb() flush_tlb_current_task()
+ /*
+ * check PMD flags; do not ignore access-bit; see
+ * pmdp_clear_flush_young().
+ */
+ return pte_flags_need_flush(pmd_flags(oldpmd), pmd_flags(newpmd),
+ false);
+}
+#define huge_pmd_needs_flush huge_pmd_needs_flush
-static inline void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start, unsigned long end)
+#ifdef CONFIG_ADDRESS_MASKING
+static inline u64 tlbstate_lam_cr3_mask(void)
{
- flush_tlb_mm(vma->vm_mm);
-}
+ u64 lam = this_cpu_read(cpu_tlbstate.lam);
-void native_flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm, unsigned long va);
+ return lam << X86_CR3_LAM_U57_BIT;
+}
-#define TLBSTATE_OK 1
-#define TLBSTATE_LAZY 2
+static inline void set_tlbstate_lam_mode(struct mm_struct *mm)
+{
+ this_cpu_write(cpu_tlbstate.lam,
+ mm->context.lam_cr3_mask >> X86_CR3_LAM_U57_BIT);
+ this_cpu_write(tlbstate_untag_mask, mm->context.untag_mask);
+}
-struct tlb_state {
- struct mm_struct *active_mm;
- int state;
-};
-DECLARE_PER_CPU_SHARED_ALIGNED(struct tlb_state, cpu_tlbstate);
+#else
-static inline void reset_lazy_tlbstate(void)
+static inline u64 tlbstate_lam_cr3_mask(void)
{
- percpu_write(cpu_tlbstate.state, 0);
- percpu_write(cpu_tlbstate.active_mm, &init_mm);
+ return 0;
}
-#endif /* SMP */
-
-#ifndef CONFIG_PARAVIRT
-#define flush_tlb_others(mask, mm, va) native_flush_tlb_others(mask, mm, va)
+static inline void set_tlbstate_lam_mode(struct mm_struct *mm)
+{
+}
#endif
+#endif /* !MODULE */
-static inline void flush_tlb_kernel_range(unsigned long start,
- unsigned long end)
+static inline void __native_tlb_flush_global(unsigned long cr4)
{
- flush_tlb_all();
+ native_write_cr4(cr4 ^ X86_CR4_PGE);
+ native_write_cr4(cr4);
}
-
#endif /* _ASM_X86_TLBFLUSH_H */
diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index 910a7084f7f2..458c891a8273 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -25,16 +25,6 @@
#ifndef _ASM_X86_TOPOLOGY_H
#define _ASM_X86_TOPOLOGY_H
-#ifdef CONFIG_X86_32
-# ifdef CONFIG_X86_HT
-# define ENABLE_TOPO_DEFINES
-# endif
-#else
-# ifdef CONFIG_SMP
-# define ENABLE_TOPO_DEFINES
-# endif
-#endif
-
/*
* to preserve the visibility of NUMA_NO_NODE definition,
* moved to there from here. May be used independent of
@@ -46,6 +36,7 @@
#include <linux/cpumask.h>
#include <asm/mpspec.h>
+#include <asm/percpu.h>
/* Mappings between logical cpu number and node number */
DECLARE_EARLY_PER_CPU(int, x86_cpu_to_node_map);
@@ -84,64 +75,10 @@ static inline const struct cpumask *cpumask_of_node(int node)
extern void setup_node_to_cpumask_map(void);
-/*
- * Returns the number of the node containing Node 'node'. This
- * architecture is flat, so it is a pretty simple function!
- */
-#define parent_node(node) (node)
-
#define pcibus_to_node(bus) __pcibus_to_node(bus)
-#ifdef CONFIG_X86_32
-extern unsigned long node_start_pfn[];
-extern unsigned long node_end_pfn[];
-extern unsigned long node_remap_size[];
-#define node_has_online_mem(nid) (node_start_pfn[nid] != node_end_pfn[nid])
-
-# define SD_CACHE_NICE_TRIES 1
-# define SD_IDLE_IDX 1
-
-#else
-
-# define SD_CACHE_NICE_TRIES 2
-# define SD_IDLE_IDX 2
-
-#endif
-
-/* sched_domains SD_NODE_INIT for NUMA machines */
-#define SD_NODE_INIT (struct sched_domain) { \
- .min_interval = 8, \
- .max_interval = 32, \
- .busy_factor = 32, \
- .imbalance_pct = 125, \
- .cache_nice_tries = SD_CACHE_NICE_TRIES, \
- .busy_idx = 3, \
- .idle_idx = SD_IDLE_IDX, \
- .newidle_idx = 0, \
- .wake_idx = 0, \
- .forkexec_idx = 0, \
- \
- .flags = 1*SD_LOAD_BALANCE \
- | 1*SD_BALANCE_NEWIDLE \
- | 1*SD_BALANCE_EXEC \
- | 1*SD_BALANCE_FORK \
- | 0*SD_BALANCE_WAKE \
- | 1*SD_WAKE_AFFINE \
- | 0*SD_PREFER_LOCAL \
- | 0*SD_SHARE_CPUPOWER \
- | 0*SD_POWERSAVINGS_BALANCE \
- | 0*SD_SHARE_PKG_RESOURCES \
- | 1*SD_SERIALIZE \
- | 0*SD_PREFER_SIBLING \
- , \
- .last_balance = jiffies, \
- .balance_interval = 1, \
-}
-
-#ifdef CONFIG_X86_64
extern int __node_distance(int, int);
#define node_distance(a, b) __node_distance(a, b)
-#endif
#else /* !CONFIG_NUMA */
@@ -166,15 +103,58 @@ static inline void setup_node_to_cpumask_map(void) { }
#include <asm-generic/topology.h>
extern const struct cpumask *cpu_coregroup_mask(int cpu);
+extern const struct cpumask *cpu_clustergroup_mask(int cpu);
-#ifdef ENABLE_TOPO_DEFINES
+#define topology_logical_package_id(cpu) (cpu_data(cpu).logical_proc_id)
#define topology_physical_package_id(cpu) (cpu_data(cpu).phys_proc_id)
+#define topology_logical_die_id(cpu) (cpu_data(cpu).logical_die_id)
+#define topology_die_id(cpu) (cpu_data(cpu).cpu_die_id)
#define topology_core_id(cpu) (cpu_data(cpu).cpu_core_id)
+#define topology_ppin(cpu) (cpu_data(cpu).ppin)
+
+extern unsigned int __max_die_per_package;
+
+#ifdef CONFIG_SMP
+#define topology_cluster_id(cpu) (per_cpu(cpu_l2c_id, cpu))
+#define topology_die_cpumask(cpu) (per_cpu(cpu_die_map, cpu))
+#define topology_cluster_cpumask(cpu) (cpu_clustergroup_mask(cpu))
#define topology_core_cpumask(cpu) (per_cpu(cpu_core_map, cpu))
-#define topology_thread_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
+#define topology_sibling_cpumask(cpu) (per_cpu(cpu_sibling_map, cpu))
+
+extern unsigned int __max_logical_packages;
+#define topology_max_packages() (__max_logical_packages)
+
+static inline int topology_max_die_per_package(void)
+{
+ return __max_die_per_package;
+}
+
+extern int __max_smt_threads;
+
+static inline int topology_max_smt_threads(void)
+{
+ return __max_smt_threads;
+}
-/* indicates that pointers to the topology cpumask_t maps are valid */
-#define arch_provides_topology_pointers yes
+int topology_update_package_map(unsigned int apicid, unsigned int cpu);
+int topology_update_die_map(unsigned int dieid, unsigned int cpu);
+int topology_phys_to_logical_pkg(unsigned int pkg);
+int topology_phys_to_logical_die(unsigned int die, unsigned int cpu);
+bool topology_is_primary_thread(unsigned int cpu);
+bool topology_smt_supported(void);
+#else
+#define topology_max_packages() (1)
+static inline int
+topology_update_package_map(unsigned int apicid, unsigned int cpu) { return 0; }
+static inline int
+topology_update_die_map(unsigned int dieid, unsigned int cpu) { return 0; }
+static inline int topology_phys_to_logical_pkg(unsigned int pkg) { return 0; }
+static inline int topology_phys_to_logical_die(unsigned int die,
+ unsigned int cpu) { return 0; }
+static inline int topology_max_die_per_package(void) { return 1; }
+static inline int topology_max_smt_threads(void) { return 1; }
+static inline bool topology_is_primary_thread(unsigned int cpu) { return true; }
+static inline bool topology_smt_supported(void) { return false; }
#endif
static inline void arch_fix_phys_package_id(int num, u32 slot)
@@ -182,25 +162,69 @@ static inline void arch_fix_phys_package_id(int num, u32 slot)
}
struct pci_bus;
-void x86_pci_root_bus_res_quirks(struct pci_bus *b);
+int x86_pci_root_bus_node(int bus);
+void x86_pci_root_bus_resources(int bus, struct list_head *resources);
-#ifdef CONFIG_SMP
-#define mc_capable() ((boot_cpu_data.x86_max_cores > 1) && \
- (cpumask_weight(cpu_core_mask(0)) != nr_cpu_ids))
-#define smt_capable() (smp_num_siblings > 1)
-#endif
+extern bool x86_topology_update;
-#ifdef CONFIG_NUMA
-extern int get_mp_bus_to_node(int busnum);
-extern void set_mp_bus_to_node(int busnum, int node);
-#else
-static inline int get_mp_bus_to_node(int busnum)
+#ifdef CONFIG_SCHED_MC_PRIO
+#include <asm/percpu.h>
+
+DECLARE_PER_CPU_READ_MOSTLY(int, sched_core_priority);
+extern unsigned int __read_mostly sysctl_sched_itmt_enabled;
+
+/* Interface to set priority of a cpu */
+void sched_set_itmt_core_prio(int prio, int core_cpu);
+
+/* Interface to notify scheduler that system supports ITMT */
+int sched_set_itmt_support(void);
+
+/* Interface to notify scheduler that system revokes ITMT support */
+void sched_clear_itmt_support(void);
+
+#else /* CONFIG_SCHED_MC_PRIO */
+
+#define sysctl_sched_itmt_enabled 0
+static inline void sched_set_itmt_core_prio(int prio, int core_cpu)
+{
+}
+static inline int sched_set_itmt_support(void)
{
return 0;
}
-static inline void set_mp_bus_to_node(int busnum, int node)
+static inline void sched_clear_itmt_support(void)
{
}
+#endif /* CONFIG_SCHED_MC_PRIO */
+
+#if defined(CONFIG_SMP) && defined(CONFIG_X86_64)
+#include <asm/cpufeature.h>
+
+DECLARE_STATIC_KEY_FALSE(arch_scale_freq_key);
+
+#define arch_scale_freq_invariant() static_branch_likely(&arch_scale_freq_key)
+
+DECLARE_PER_CPU(unsigned long, arch_freq_scale);
+
+static inline long arch_scale_freq_capacity(int cpu)
+{
+ return per_cpu(arch_freq_scale, cpu);
+}
+#define arch_scale_freq_capacity arch_scale_freq_capacity
+
+extern void arch_set_max_freq_ratio(bool turbo_disabled);
+extern void freq_invariance_set_perf_ratio(u64 ratio, bool turbo_disabled);
+#else
+static inline void arch_set_max_freq_ratio(bool turbo_disabled) { }
+static inline void freq_invariance_set_perf_ratio(u64 ratio, bool turbo_disabled) { }
+#endif
+
+extern void arch_scale_freq_tick(void);
+#define arch_scale_freq_tick arch_scale_freq_tick
+
+#ifdef CONFIG_ACPI_CPPC_LIB
+void init_freq_invariance_cppc(void);
+#define arch_init_invariance_cppc init_freq_invariance_cppc
#endif
#endif /* _ASM_X86_TOPOLOGY_H */
diff --git a/arch/x86/include/asm/trace/common.h b/arch/x86/include/asm/trace/common.h
new file mode 100644
index 000000000000..f0f9bcdb74d9
--- /dev/null
+++ b/arch/x86/include/asm/trace/common.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_TRACE_COMMON_H
+#define _ASM_TRACE_COMMON_H
+
+#ifdef CONFIG_TRACING
+DECLARE_STATIC_KEY_FALSE(trace_pagefault_key);
+#define trace_pagefault_enabled() \
+ static_branch_unlikely(&trace_pagefault_key)
+#else
+static inline bool trace_pagefault_enabled(void) { return false; }
+#endif
+
+#endif
diff --git a/arch/x86/include/asm/trace/exceptions.h b/arch/x86/include/asm/trace/exceptions.h
new file mode 100644
index 000000000000..6b1e87194809
--- /dev/null
+++ b/arch/x86/include/asm/trace/exceptions.h
@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM exceptions
+
+#if !defined(_TRACE_PAGE_FAULT_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_PAGE_FAULT_H
+
+#include <linux/tracepoint.h>
+#include <asm/trace/common.h>
+
+extern int trace_pagefault_reg(void);
+extern void trace_pagefault_unreg(void);
+
+DECLARE_EVENT_CLASS(x86_exceptions,
+
+ TP_PROTO(unsigned long address, struct pt_regs *regs,
+ unsigned long error_code),
+
+ TP_ARGS(address, regs, error_code),
+
+ TP_STRUCT__entry(
+ __field( unsigned long, address )
+ __field( unsigned long, ip )
+ __field( unsigned long, error_code )
+ ),
+
+ TP_fast_assign(
+ __entry->address = address;
+ __entry->ip = regs->ip;
+ __entry->error_code = error_code;
+ ),
+
+ TP_printk("address=%ps ip=%ps error_code=0x%lx",
+ (void *)__entry->address, (void *)__entry->ip,
+ __entry->error_code) );
+
+#define DEFINE_PAGE_FAULT_EVENT(name) \
+DEFINE_EVENT_FN(x86_exceptions, name, \
+ TP_PROTO(unsigned long address, struct pt_regs *regs, \
+ unsigned long error_code), \
+ TP_ARGS(address, regs, error_code), \
+ trace_pagefault_reg, trace_pagefault_unreg);
+
+DEFINE_PAGE_FAULT_EVENT(page_fault_user);
+DEFINE_PAGE_FAULT_EVENT(page_fault_kernel);
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE exceptions
+#endif /* _TRACE_PAGE_FAULT_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/arch/x86/include/asm/trace/fpu.h b/arch/x86/include/asm/trace/fpu.h
new file mode 100644
index 000000000000..4645a6334063
--- /dev/null
+++ b/arch/x86/include/asm/trace/fpu.h
@@ -0,0 +1,99 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM x86_fpu
+
+#if !defined(_TRACE_FPU_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_FPU_H
+
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(x86_fpu,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu),
+
+ TP_STRUCT__entry(
+ __field(struct fpu *, fpu)
+ __field(bool, load_fpu)
+ __field(u64, xfeatures)
+ __field(u64, xcomp_bv)
+ ),
+
+ TP_fast_assign(
+ __entry->fpu = fpu;
+ __entry->load_fpu = test_thread_flag(TIF_NEED_FPU_LOAD);
+ if (boot_cpu_has(X86_FEATURE_OSXSAVE)) {
+ __entry->xfeatures = fpu->fpstate->regs.xsave.header.xfeatures;
+ __entry->xcomp_bv = fpu->fpstate->regs.xsave.header.xcomp_bv;
+ }
+ ),
+ TP_printk("x86/fpu: %p load: %d xfeatures: %llx xcomp_bv: %llx",
+ __entry->fpu,
+ __entry->load_fpu,
+ __entry->xfeatures,
+ __entry->xcomp_bv
+ )
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_before_save,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_after_save,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_before_restore,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_after_restore,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_regs_activated,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_regs_deactivated,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_init_state,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_dropped,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_copy_src,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_copy_dst,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+DEFINE_EVENT(x86_fpu, x86_fpu_xstate_check_failed,
+ TP_PROTO(struct fpu *fpu),
+ TP_ARGS(fpu)
+);
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH asm/trace/
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE fpu
+#endif /* _TRACE_FPU_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/arch/x86/include/asm/trace/hyperv.h b/arch/x86/include/asm/trace/hyperv.h
new file mode 100644
index 000000000000..a8e5a7a2b460
--- /dev/null
+++ b/arch/x86/include/asm/trace/hyperv.h
@@ -0,0 +1,98 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM hyperv
+
+#if !defined(_TRACE_HYPERV_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_HYPERV_H
+
+#include <linux/tracepoint.h>
+
+#if IS_ENABLED(CONFIG_HYPERV)
+
+TRACE_EVENT(hyperv_mmu_flush_tlb_multi,
+ TP_PROTO(const struct cpumask *cpus,
+ const struct flush_tlb_info *info),
+ TP_ARGS(cpus, info),
+ TP_STRUCT__entry(
+ __field(unsigned int, ncpus)
+ __field(struct mm_struct *, mm)
+ __field(unsigned long, addr)
+ __field(unsigned long, end)
+ ),
+ TP_fast_assign(__entry->ncpus = cpumask_weight(cpus);
+ __entry->mm = info->mm;
+ __entry->addr = info->start;
+ __entry->end = info->end;
+ ),
+ TP_printk("ncpus %d mm %p addr %lx, end %lx",
+ __entry->ncpus, __entry->mm,
+ __entry->addr, __entry->end)
+ );
+
+TRACE_EVENT(hyperv_nested_flush_guest_mapping,
+ TP_PROTO(u64 as, int ret),
+ TP_ARGS(as, ret),
+
+ TP_STRUCT__entry(
+ __field(u64, as)
+ __field(int, ret)
+ ),
+ TP_fast_assign(__entry->as = as;
+ __entry->ret = ret;
+ ),
+ TP_printk("address space %llx ret %d", __entry->as, __entry->ret)
+ );
+
+TRACE_EVENT(hyperv_nested_flush_guest_mapping_range,
+ TP_PROTO(u64 as, int ret),
+ TP_ARGS(as, ret),
+
+ TP_STRUCT__entry(
+ __field(u64, as)
+ __field(int, ret)
+ ),
+ TP_fast_assign(__entry->as = as;
+ __entry->ret = ret;
+ ),
+ TP_printk("address space %llx ret %d", __entry->as, __entry->ret)
+ );
+
+TRACE_EVENT(hyperv_send_ipi_mask,
+ TP_PROTO(const struct cpumask *cpus,
+ int vector),
+ TP_ARGS(cpus, vector),
+ TP_STRUCT__entry(
+ __field(unsigned int, ncpus)
+ __field(int, vector)
+ ),
+ TP_fast_assign(__entry->ncpus = cpumask_weight(cpus);
+ __entry->vector = vector;
+ ),
+ TP_printk("ncpus %d vector %x",
+ __entry->ncpus, __entry->vector)
+ );
+
+TRACE_EVENT(hyperv_send_ipi_one,
+ TP_PROTO(int cpu,
+ int vector),
+ TP_ARGS(cpu, vector),
+ TP_STRUCT__entry(
+ __field(int, cpu)
+ __field(int, vector)
+ ),
+ TP_fast_assign(__entry->cpu = cpu;
+ __entry->vector = vector;
+ ),
+ TP_printk("cpu %d vector %x",
+ __entry->cpu, __entry->vector)
+ );
+
+#endif /* CONFIG_HYPERV */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH asm/trace/
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE hyperv
+#endif /* _TRACE_HYPERV_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/arch/x86/include/asm/trace/irq_vectors.h b/arch/x86/include/asm/trace/irq_vectors.h
new file mode 100644
index 000000000000..88e7f0f3bf62
--- /dev/null
+++ b/arch/x86/include/asm/trace/irq_vectors.h
@@ -0,0 +1,383 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM irq_vectors
+
+#if !defined(_TRACE_IRQ_VECTORS_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_IRQ_VECTORS_H
+
+#include <linux/tracepoint.h>
+#include <asm/trace/common.h>
+
+#ifdef CONFIG_X86_LOCAL_APIC
+
+DECLARE_EVENT_CLASS(x86_irq_vector,
+
+ TP_PROTO(int vector),
+
+ TP_ARGS(vector),
+
+ TP_STRUCT__entry(
+ __field( int, vector )
+ ),
+
+ TP_fast_assign(
+ __entry->vector = vector;
+ ),
+
+ TP_printk("vector=%d", __entry->vector) );
+
+#define DEFINE_IRQ_VECTOR_EVENT(name) \
+DEFINE_EVENT_FN(x86_irq_vector, name##_entry, \
+ TP_PROTO(int vector), \
+ TP_ARGS(vector), NULL, NULL); \
+DEFINE_EVENT_FN(x86_irq_vector, name##_exit, \
+ TP_PROTO(int vector), \
+ TP_ARGS(vector), NULL, NULL);
+
+/*
+ * local_timer - called when entering/exiting a local timer interrupt
+ * vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(local_timer);
+
+/*
+ * spurious_apic - called when entering/exiting a spurious apic vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(spurious_apic);
+
+/*
+ * error_apic - called when entering/exiting an error apic vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(error_apic);
+
+/*
+ * x86_platform_ipi - called when entering/exiting a x86 platform ipi interrupt
+ * vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(x86_platform_ipi);
+
+#ifdef CONFIG_IRQ_WORK
+/*
+ * irq_work - called when entering/exiting a irq work interrupt
+ * vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(irq_work);
+
+/*
+ * We must dis-allow sampling irq_work_exit() because perf event sampling
+ * itself can cause irq_work, which would lead to an infinite loop;
+ *
+ * 1) irq_work_exit happens
+ * 2) generates perf sample
+ * 3) generates irq_work
+ * 4) goto 1
+ */
+TRACE_EVENT_PERF_PERM(irq_work_exit, is_sampling_event(p_event) ? -EPERM : 0);
+#endif
+
+/*
+ * The ifdef is required because that tracepoint macro hell emits tracepoint
+ * code in files which include this header even if the tracepoint is not
+ * enabled. Brilliant stuff that.
+ */
+#ifdef CONFIG_SMP
+/*
+ * reschedule - called when entering/exiting a reschedule vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(reschedule);
+
+/*
+ * call_function - called when entering/exiting a call function interrupt
+ * vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(call_function);
+
+/*
+ * call_function_single - called when entering/exiting a call function
+ * single interrupt vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(call_function_single);
+#endif
+
+#ifdef CONFIG_X86_MCE_THRESHOLD
+/*
+ * threshold_apic - called when entering/exiting a threshold apic interrupt
+ * vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(threshold_apic);
+#endif
+
+#ifdef CONFIG_X86_MCE_AMD
+/*
+ * deferred_error_apic - called when entering/exiting a deferred apic interrupt
+ * vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(deferred_error_apic);
+#endif
+
+#ifdef CONFIG_X86_THERMAL_VECTOR
+/*
+ * thermal_apic - called when entering/exiting a thermal apic interrupt
+ * vector handler
+ */
+DEFINE_IRQ_VECTOR_EVENT(thermal_apic);
+#endif
+
+TRACE_EVENT(vector_config,
+
+ TP_PROTO(unsigned int irq, unsigned int vector,
+ unsigned int cpu, unsigned int apicdest),
+
+ TP_ARGS(irq, vector, cpu, apicdest),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, irq )
+ __field( unsigned int, vector )
+ __field( unsigned int, cpu )
+ __field( unsigned int, apicdest )
+ ),
+
+ TP_fast_assign(
+ __entry->irq = irq;
+ __entry->vector = vector;
+ __entry->cpu = cpu;
+ __entry->apicdest = apicdest;
+ ),
+
+ TP_printk("irq=%u vector=%u cpu=%u apicdest=0x%08x",
+ __entry->irq, __entry->vector, __entry->cpu,
+ __entry->apicdest)
+);
+
+DECLARE_EVENT_CLASS(vector_mod,
+
+ TP_PROTO(unsigned int irq, unsigned int vector,
+ unsigned int cpu, unsigned int prev_vector,
+ unsigned int prev_cpu),
+
+ TP_ARGS(irq, vector, cpu, prev_vector, prev_cpu),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, irq )
+ __field( unsigned int, vector )
+ __field( unsigned int, cpu )
+ __field( unsigned int, prev_vector )
+ __field( unsigned int, prev_cpu )
+ ),
+
+ TP_fast_assign(
+ __entry->irq = irq;
+ __entry->vector = vector;
+ __entry->cpu = cpu;
+ __entry->prev_vector = prev_vector;
+ __entry->prev_cpu = prev_cpu;
+
+ ),
+
+ TP_printk("irq=%u vector=%u cpu=%u prev_vector=%u prev_cpu=%u",
+ __entry->irq, __entry->vector, __entry->cpu,
+ __entry->prev_vector, __entry->prev_cpu)
+);
+
+#define DEFINE_IRQ_VECTOR_MOD_EVENT(name) \
+DEFINE_EVENT_FN(vector_mod, name, \
+ TP_PROTO(unsigned int irq, unsigned int vector, \
+ unsigned int cpu, unsigned int prev_vector, \
+ unsigned int prev_cpu), \
+ TP_ARGS(irq, vector, cpu, prev_vector, prev_cpu), NULL, NULL); \
+
+DEFINE_IRQ_VECTOR_MOD_EVENT(vector_update);
+DEFINE_IRQ_VECTOR_MOD_EVENT(vector_clear);
+
+DECLARE_EVENT_CLASS(vector_reserve,
+
+ TP_PROTO(unsigned int irq, int ret),
+
+ TP_ARGS(irq, ret),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, irq )
+ __field( int, ret )
+ ),
+
+ TP_fast_assign(
+ __entry->irq = irq;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("irq=%u ret=%d", __entry->irq, __entry->ret)
+);
+
+#define DEFINE_IRQ_VECTOR_RESERVE_EVENT(name) \
+DEFINE_EVENT_FN(vector_reserve, name, \
+ TP_PROTO(unsigned int irq, int ret), \
+ TP_ARGS(irq, ret), NULL, NULL); \
+
+DEFINE_IRQ_VECTOR_RESERVE_EVENT(vector_reserve_managed);
+DEFINE_IRQ_VECTOR_RESERVE_EVENT(vector_reserve);
+
+TRACE_EVENT(vector_alloc,
+
+ TP_PROTO(unsigned int irq, unsigned int vector, bool reserved,
+ int ret),
+
+ TP_ARGS(irq, vector, reserved, ret),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, irq )
+ __field( unsigned int, vector )
+ __field( bool, reserved )
+ __field( int, ret )
+ ),
+
+ TP_fast_assign(
+ __entry->irq = irq;
+ __entry->vector = ret < 0 ? 0 : vector;
+ __entry->reserved = reserved;
+ __entry->ret = ret > 0 ? 0 : ret;
+ ),
+
+ TP_printk("irq=%u vector=%u reserved=%d ret=%d",
+ __entry->irq, __entry->vector,
+ __entry->reserved, __entry->ret)
+);
+
+TRACE_EVENT(vector_alloc_managed,
+
+ TP_PROTO(unsigned int irq, unsigned int vector,
+ int ret),
+
+ TP_ARGS(irq, vector, ret),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, irq )
+ __field( unsigned int, vector )
+ __field( int, ret )
+ ),
+
+ TP_fast_assign(
+ __entry->irq = irq;
+ __entry->vector = ret < 0 ? 0 : vector;
+ __entry->ret = ret > 0 ? 0 : ret;
+ ),
+
+ TP_printk("irq=%u vector=%u ret=%d",
+ __entry->irq, __entry->vector, __entry->ret)
+);
+
+DECLARE_EVENT_CLASS(vector_activate,
+
+ TP_PROTO(unsigned int irq, bool is_managed, bool can_reserve,
+ bool reserve),
+
+ TP_ARGS(irq, is_managed, can_reserve, reserve),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, irq )
+ __field( bool, is_managed )
+ __field( bool, can_reserve )
+ __field( bool, reserve )
+ ),
+
+ TP_fast_assign(
+ __entry->irq = irq;
+ __entry->is_managed = is_managed;
+ __entry->can_reserve = can_reserve;
+ __entry->reserve = reserve;
+ ),
+
+ TP_printk("irq=%u is_managed=%d can_reserve=%d reserve=%d",
+ __entry->irq, __entry->is_managed, __entry->can_reserve,
+ __entry->reserve)
+);
+
+#define DEFINE_IRQ_VECTOR_ACTIVATE_EVENT(name) \
+DEFINE_EVENT_FN(vector_activate, name, \
+ TP_PROTO(unsigned int irq, bool is_managed, \
+ bool can_reserve, bool reserve), \
+ TP_ARGS(irq, is_managed, can_reserve, reserve), NULL, NULL); \
+
+DEFINE_IRQ_VECTOR_ACTIVATE_EVENT(vector_activate);
+DEFINE_IRQ_VECTOR_ACTIVATE_EVENT(vector_deactivate);
+
+TRACE_EVENT(vector_teardown,
+
+ TP_PROTO(unsigned int irq, bool is_managed, bool has_reserved),
+
+ TP_ARGS(irq, is_managed, has_reserved),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, irq )
+ __field( bool, is_managed )
+ __field( bool, has_reserved )
+ ),
+
+ TP_fast_assign(
+ __entry->irq = irq;
+ __entry->is_managed = is_managed;
+ __entry->has_reserved = has_reserved;
+ ),
+
+ TP_printk("irq=%u is_managed=%d has_reserved=%d",
+ __entry->irq, __entry->is_managed, __entry->has_reserved)
+);
+
+TRACE_EVENT(vector_setup,
+
+ TP_PROTO(unsigned int irq, bool is_legacy, int ret),
+
+ TP_ARGS(irq, is_legacy, ret),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, irq )
+ __field( bool, is_legacy )
+ __field( int, ret )
+ ),
+
+ TP_fast_assign(
+ __entry->irq = irq;
+ __entry->is_legacy = is_legacy;
+ __entry->ret = ret;
+ ),
+
+ TP_printk("irq=%u is_legacy=%d ret=%d",
+ __entry->irq, __entry->is_legacy, __entry->ret)
+);
+
+TRACE_EVENT(vector_free_moved,
+
+ TP_PROTO(unsigned int irq, unsigned int cpu, unsigned int vector,
+ bool is_managed),
+
+ TP_ARGS(irq, cpu, vector, is_managed),
+
+ TP_STRUCT__entry(
+ __field( unsigned int, irq )
+ __field( unsigned int, cpu )
+ __field( unsigned int, vector )
+ __field( bool, is_managed )
+ ),
+
+ TP_fast_assign(
+ __entry->irq = irq;
+ __entry->cpu = cpu;
+ __entry->vector = vector;
+ __entry->is_managed = is_managed;
+ ),
+
+ TP_printk("irq=%u cpu=%u vector=%u is_managed=%d",
+ __entry->irq, __entry->cpu, __entry->vector,
+ __entry->is_managed)
+);
+
+
+#endif /* CONFIG_X86_LOCAL_APIC */
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE irq_vectors
+#endif /* _TRACE_IRQ_VECTORS_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/arch/x86/include/asm/trace_clock.h b/arch/x86/include/asm/trace_clock.h
new file mode 100644
index 000000000000..7061a5650969
--- /dev/null
+++ b/arch/x86/include/asm/trace_clock.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_TRACE_CLOCK_H
+#define _ASM_X86_TRACE_CLOCK_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+
+#ifdef CONFIG_X86_TSC
+
+extern u64 notrace trace_clock_x86_tsc(void);
+
+# define ARCH_TRACE_CLOCKS \
+ { trace_clock_x86_tsc, "x86-tsc", .in_ns = 0 },
+
+#else /* !CONFIG_X86_TSC */
+
+#define ARCH_TRACE_CLOCKS
+
+#endif
+
+#endif /* _ASM_X86_TRACE_CLOCK_H */
diff --git a/arch/x86/include/asm/trampoline.h b/arch/x86/include/asm/trampoline.h
deleted file mode 100644
index feca3118a73b..000000000000
--- a/arch/x86/include/asm/trampoline.h
+++ /dev/null
@@ -1,39 +0,0 @@
-#ifndef _ASM_X86_TRAMPOLINE_H
-#define _ASM_X86_TRAMPOLINE_H
-
-#ifndef __ASSEMBLY__
-
-#include <linux/types.h>
-#include <asm/io.h>
-
-/*
- * Trampoline 80x86 program as an array. These are in the init rodata
- * segment, but that's okay, because we only care about the relative
- * addresses of the symbols.
- */
-extern const unsigned char x86_trampoline_start [];
-extern const unsigned char x86_trampoline_end [];
-extern unsigned char *x86_trampoline_base;
-
-extern unsigned long init_rsp;
-extern unsigned long initial_code;
-extern unsigned long initial_gs;
-
-extern void __init setup_trampolines(void);
-
-extern const unsigned char trampoline_data[];
-extern const unsigned char trampoline_status[];
-
-#define TRAMPOLINE_SYM(x) \
- ((void *)(x86_trampoline_base + \
- ((const unsigned char *)(x) - x86_trampoline_start)))
-
-/* Address of the SMP trampoline */
-static inline unsigned long trampoline_address(void)
-{
- return virt_to_phys(TRAMPOLINE_SYM(trampoline_data));
-}
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _ASM_X86_TRAMPOLINE_H */
diff --git a/arch/x86/include/asm/trap_pf.h b/arch/x86/include/asm/trap_pf.h
new file mode 100644
index 000000000000..10b1de500ab1
--- /dev/null
+++ b/arch/x86/include/asm/trap_pf.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_TRAP_PF_H
+#define _ASM_X86_TRAP_PF_H
+
+/*
+ * Page fault error code bits:
+ *
+ * bit 0 == 0: no page found 1: protection fault
+ * bit 1 == 0: read access 1: write access
+ * bit 2 == 0: kernel-mode access 1: user-mode access
+ * bit 3 == 1: use of reserved bit detected
+ * bit 4 == 1: fault was an instruction fetch
+ * bit 5 == 1: protection keys block access
+ * bit 15 == 1: SGX MMU page-fault
+ */
+enum x86_pf_error_code {
+ X86_PF_PROT = 1 << 0,
+ X86_PF_WRITE = 1 << 1,
+ X86_PF_USER = 1 << 2,
+ X86_PF_RSVD = 1 << 3,
+ X86_PF_INSTR = 1 << 4,
+ X86_PF_PK = 1 << 5,
+ X86_PF_SGX = 1 << 15,
+};
+
+#endif /* _ASM_X86_TRAP_PF_H */
diff --git a/arch/x86/include/asm/trapnr.h b/arch/x86/include/asm/trapnr.h
new file mode 100644
index 000000000000..f5d2325aa0b7
--- /dev/null
+++ b/arch/x86/include/asm/trapnr.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_TRAPNR_H
+#define _ASM_X86_TRAPNR_H
+
+/* Interrupts/Exceptions */
+
+#define X86_TRAP_DE 0 /* Divide-by-zero */
+#define X86_TRAP_DB 1 /* Debug */
+#define X86_TRAP_NMI 2 /* Non-maskable Interrupt */
+#define X86_TRAP_BP 3 /* Breakpoint */
+#define X86_TRAP_OF 4 /* Overflow */
+#define X86_TRAP_BR 5 /* Bound Range Exceeded */
+#define X86_TRAP_UD 6 /* Invalid Opcode */
+#define X86_TRAP_NM 7 /* Device Not Available */
+#define X86_TRAP_DF 8 /* Double Fault */
+#define X86_TRAP_OLD_MF 9 /* Coprocessor Segment Overrun */
+#define X86_TRAP_TS 10 /* Invalid TSS */
+#define X86_TRAP_NP 11 /* Segment Not Present */
+#define X86_TRAP_SS 12 /* Stack Segment Fault */
+#define X86_TRAP_GP 13 /* General Protection Fault */
+#define X86_TRAP_PF 14 /* Page Fault */
+#define X86_TRAP_SPURIOUS 15 /* Spurious Interrupt */
+#define X86_TRAP_MF 16 /* x87 Floating-Point Exception */
+#define X86_TRAP_AC 17 /* Alignment Check */
+#define X86_TRAP_MC 18 /* Machine Check */
+#define X86_TRAP_XF 19 /* SIMD Floating-Point Exception */
+#define X86_TRAP_VE 20 /* Virtualization Exception */
+#define X86_TRAP_CP 21 /* Control Protection Exception */
+#define X86_TRAP_VC 29 /* VMM Communication Exception */
+#define X86_TRAP_IRET 32 /* IRET Exception */
+
+#endif
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 0310da67307f..47ecfff2c83d 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -1,71 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_TRAPS_H
#define _ASM_X86_TRAPS_H
+#include <linux/context_tracking_state.h>
+#include <linux/kprobes.h>
+
#include <asm/debugreg.h>
+#include <asm/idtentry.h>
#include <asm/siginfo.h> /* TRAP_TRACE, ... */
+#include <asm/trap_pf.h>
-#ifdef CONFIG_X86_32
-#define dotraplinkage
-#else
-#define dotraplinkage asmlinkage
-#endif
-
-asmlinkage void divide_error(void);
-asmlinkage void debug(void);
-asmlinkage void nmi(void);
-asmlinkage void int3(void);
-asmlinkage void xen_debug(void);
-asmlinkage void xen_int3(void);
-asmlinkage void xen_stack_segment(void);
-asmlinkage void overflow(void);
-asmlinkage void bounds(void);
-asmlinkage void invalid_op(void);
-asmlinkage void device_not_available(void);
#ifdef CONFIG_X86_64
-asmlinkage void double_fault(void);
+asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs);
+asmlinkage __visible notrace
+struct pt_regs *fixup_bad_iret(struct pt_regs *bad_regs);
+void __init trap_init(void);
+asmlinkage __visible noinstr struct pt_regs *vc_switch_off_ist(struct pt_regs *eregs);
#endif
-asmlinkage void coprocessor_segment_overrun(void);
-asmlinkage void invalid_TSS(void);
-asmlinkage void segment_not_present(void);
-asmlinkage void stack_segment(void);
-asmlinkage void general_protection(void);
-asmlinkage void page_fault(void);
-asmlinkage void async_page_fault(void);
-asmlinkage void spurious_interrupt_bug(void);
-asmlinkage void coprocessor_error(void);
-asmlinkage void alignment_check(void);
-#ifdef CONFIG_X86_MCE
-asmlinkage void machine_check(void);
-#endif /* CONFIG_X86_MCE */
-asmlinkage void simd_coprocessor_error(void);
-dotraplinkage void do_divide_error(struct pt_regs *, long);
-dotraplinkage void do_debug(struct pt_regs *, long);
-dotraplinkage void do_nmi(struct pt_regs *, long);
-dotraplinkage void do_int3(struct pt_regs *, long);
-dotraplinkage void do_overflow(struct pt_regs *, long);
-dotraplinkage void do_bounds(struct pt_regs *, long);
-dotraplinkage void do_invalid_op(struct pt_regs *, long);
-dotraplinkage void do_device_not_available(struct pt_regs *, long);
-dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *, long);
-dotraplinkage void do_invalid_TSS(struct pt_regs *, long);
-dotraplinkage void do_segment_not_present(struct pt_regs *, long);
-dotraplinkage void do_stack_segment(struct pt_regs *, long);
-#ifdef CONFIG_X86_64
-dotraplinkage void do_double_fault(struct pt_regs *, long);
-asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *);
-#endif
-dotraplinkage void do_general_protection(struct pt_regs *, long);
-dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
-dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
-dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
-dotraplinkage void do_alignment_check(struct pt_regs *, long);
-#ifdef CONFIG_X86_MCE
-dotraplinkage void do_machine_check(struct pt_regs *, long);
-#endif
-dotraplinkage void do_simd_coprocessor_error(struct pt_regs *, long);
-#ifdef CONFIG_X86_32
-dotraplinkage void do_iret_error(struct pt_regs *, long);
+extern bool ibt_selftest(void);
+
+#ifdef CONFIG_X86_F00F_BUG
+/* For handling the FOOF bug */
+void handle_invalid_op(struct pt_regs *regs);
#endif
static inline int get_si_code(unsigned long condition)
@@ -80,11 +37,14 @@ static inline int get_si_code(unsigned long condition)
extern int panic_on_unrecovered_nmi;
-void math_error(struct pt_regs *, int, int);
void math_emulate(struct math_emu_info *);
-#ifndef CONFIG_X86_32
-asmlinkage void smp_thermal_interrupt(void);
-asmlinkage void mce_threshold_interrupt(void);
+
+bool fault_in_kernel_space(unsigned long address);
+
+#ifdef CONFIG_VMAP_STACK
+void __noreturn handle_stack_overflow(struct pt_regs *regs,
+ unsigned long fault_address,
+ struct stack_info *info);
#endif
#endif /* _ASM_X86_TRAPS_H */
diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h
index 83e2efd181e2..fbdc3d951494 100644
--- a/arch/x86/include/asm/tsc.h
+++ b/arch/x86/include/asm/tsc.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* x86 TSC related functions
*/
@@ -5,9 +6,7 @@
#define _ASM_X86_TSC_H
#include <asm/processor.h>
-
-#define NS_SCALE 10 /* 2^10, carefully chosen */
-#define US_SCALE 32 /* 2^32, arbitralrily chosen */
+#include <asm/cpufeature.h>
/*
* Standard way to access the cycle counter.
@@ -21,45 +20,54 @@ extern void disable_TSC(void);
static inline cycles_t get_cycles(void)
{
- unsigned long long ret = 0;
-
-#ifndef CONFIG_X86_TSC
- if (!cpu_has_tsc)
+ if (!IS_ENABLED(CONFIG_X86_TSC) &&
+ !cpu_feature_enabled(X86_FEATURE_TSC))
return 0;
-#endif
- rdtscll(ret);
-
- return ret;
+ return rdtsc();
}
+#define get_cycles get_cycles
-static __always_inline cycles_t vget_cycles(void)
-{
- /*
- * We only do VDSOs on TSC capable CPUs, so this shouldn't
- * access boot_cpu_data (which is not VDSO-safe):
- */
-#ifndef CONFIG_X86_TSC
- if (!cpu_has_tsc)
- return 0;
-#endif
- return (cycles_t)__native_read_tsc();
-}
+extern struct system_counterval_t convert_art_to_tsc(u64 art);
+extern struct system_counterval_t convert_art_ns_to_tsc(u64 art_ns);
+extern void tsc_early_init(void);
extern void tsc_init(void);
+extern unsigned long calibrate_delay_is_known(void);
extern void mark_tsc_unstable(char *reason);
extern int unsynchronized_tsc(void);
extern int check_tsc_unstable(void);
+extern void mark_tsc_async_resets(char *reason);
+extern unsigned long native_calibrate_cpu_early(void);
extern unsigned long native_calibrate_tsc(void);
+extern unsigned long long native_sched_clock_from_tsc(u64 tsc);
+
+extern int tsc_clocksource_reliable;
+#ifdef CONFIG_X86_TSC
+extern bool tsc_async_resets;
+#else
+# define tsc_async_resets false
+#endif
/*
* Boot-time check whether the TSCs are synchronized across
* all CPUs/cores:
*/
+#ifdef CONFIG_X86_TSC
+extern bool tsc_store_and_check_tsc_adjust(bool bootcpu);
+extern void tsc_verify_tsc_adjust(bool resume);
extern void check_tsc_sync_source(int cpu);
extern void check_tsc_sync_target(void);
+#else
+static inline bool tsc_store_and_check_tsc_adjust(bool bootcpu) { return false; }
+static inline void tsc_verify_tsc_adjust(bool resume) { }
+static inline void check_tsc_sync_source(int cpu) { }
+static inline void check_tsc_sync_target(void) { }
+#endif
extern int notsc_setup(char *);
-extern void save_sched_clock_state(void);
-extern void restore_sched_clock_state(void);
+extern void tsc_save_sched_clock_state(void);
+extern void tsc_restore_sched_clock_state(void);
+
+unsigned long cpu_khz_from_msr(void);
#endif /* _ASM_X86_TSC_H */
diff --git a/arch/x86/include/asm/types.h b/arch/x86/include/asm/types.h
deleted file mode 100644
index 8e8c23fef08c..000000000000
--- a/arch/x86/include/asm/types.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_X86_TYPES_H
-#define _ASM_X86_TYPES_H
-
-#include <asm-generic/types.h>
-
-#endif /* _ASM_X86_TYPES_H */
diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index abd3e0ea762a..8bae40a66282 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -1,138 +1,119 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_UACCESS_H
#define _ASM_X86_UACCESS_H
/*
* User space memory access functions
*/
-#include <linux/errno.h>
#include <linux/compiler.h>
-#include <linux/thread_info.h>
-#include <linux/prefetch.h>
+#include <linux/instrumented.h>
+#include <linux/kasan-checks.h>
+#include <linux/mm_types.h>
#include <linux/string.h>
+#include <linux/mmap_lock.h>
#include <asm/asm.h>
#include <asm/page.h>
+#include <asm/smap.h>
+#include <asm/extable.h>
+#include <asm/tlbflush.h>
-#define VERIFY_READ 0
-#define VERIFY_WRITE 1
-
-/*
- * The fs value determines whether argument validity checking should be
- * performed or not. If get_fs() == USER_DS, checking is performed, with
- * get_fs() == KERNEL_DS, checking is bypassed.
- *
- * For historical reasons, these macros are grossly misnamed.
- */
+#ifdef CONFIG_X86_32
+# include <asm/uaccess_32.h>
+#else
+# include <asm/uaccess_64.h>
+#endif
-#define MAKE_MM_SEG(s) ((mm_segment_t) { (s) })
+#include <asm-generic/access_ok.h>
-#define KERNEL_DS MAKE_MM_SEG(-1UL)
-#define USER_DS MAKE_MM_SEG(TASK_SIZE_MAX)
+extern int __get_user_1(void);
+extern int __get_user_2(void);
+extern int __get_user_4(void);
+extern int __get_user_8(void);
+extern int __get_user_nocheck_1(void);
+extern int __get_user_nocheck_2(void);
+extern int __get_user_nocheck_4(void);
+extern int __get_user_nocheck_8(void);
+extern int __get_user_bad(void);
-#define get_ds() (KERNEL_DS)
-#define get_fs() (current_thread_info()->addr_limit)
-#define set_fs(x) (current_thread_info()->addr_limit = (x))
+#define __uaccess_begin() stac()
+#define __uaccess_end() clac()
+#define __uaccess_begin_nospec() \
+({ \
+ stac(); \
+ barrier_nospec(); \
+})
-#define segment_eq(a, b) ((a).seg == (b).seg)
+/*
+ * This is the smallest unsigned integer type that can fit a value
+ * (up to 'long long')
+ */
+#define __inttype(x) __typeof__( \
+ __typefits(x,char, \
+ __typefits(x,short, \
+ __typefits(x,int, \
+ __typefits(x,long,0ULL)))))
-#define __addr_ok(addr) \
- ((unsigned long __force)(addr) < \
- (current_thread_info()->addr_limit.seg))
+#define __typefits(x,type,not) \
+ __builtin_choose_expr(sizeof(x)<=sizeof(type),(unsigned type)0,not)
/*
- * Test whether a block of memory is a valid user space address.
- * Returns 0 if the range is valid, nonzero otherwise.
+ * This is used for both get_user() and __get_user() to expand to
+ * the proper special function call that has odd calling conventions
+ * due to returning both a value and an error, and that depends on
+ * the size of the pointer passed in.
+ *
+ * Careful: we have to cast the result to the type of the pointer
+ * for sign reasons.
*
- * This is equivalent to the following test:
- * (u33)addr + (u33)size >= (u33)current->addr_limit.seg (u65 for x86_64)
+ * The use of _ASM_DX as the register specifier is a bit of a
+ * simplification, as gcc only cares about it as the starting point
+ * and not size: for a 64-bit value it will use %ecx:%edx on 32 bits
+ * (%ecx being the next register in gcc's x86 register sequence), and
+ * %rdx on 64 bits.
*
- * This needs 33-bit (65-bit for x86_64) arithmetic. We have a carry...
+ * Clang/LLVM cares about the size of the register, but still wants
+ * the base register for something that ends up being a pair.
*/
-
-#define __range_not_ok(addr, size) \
+#define do_get_user_call(fn,x,ptr) \
({ \
- unsigned long flag, roksum; \
- __chk_user_ptr(addr); \
- asm("add %3,%1 ; sbb %0,%0 ; cmp %1,%4 ; sbb $0,%0" \
- : "=&r" (flag), "=r" (roksum) \
- : "1" (addr), "g" ((long)(size)), \
- "rm" (current_thread_info()->addr_limit.seg)); \
- flag; \
+ int __ret_gu; \
+ register __inttype(*(ptr)) __val_gu asm("%"_ASM_DX); \
+ __chk_user_ptr(ptr); \
+ asm volatile("call __" #fn "_%P4" \
+ : "=a" (__ret_gu), "=r" (__val_gu), \
+ ASM_CALL_CONSTRAINT \
+ : "0" (ptr), "i" (sizeof(*(ptr)))); \
+ instrument_get_user(__val_gu); \
+ (x) = (__force __typeof__(*(ptr))) __val_gu; \
+ __builtin_expect(__ret_gu, 0); \
})
/**
- * access_ok: - Checks if a user space pointer is valid
- * @type: Type of access: %VERIFY_READ or %VERIFY_WRITE. Note that
- * %VERIFY_WRITE is a superset of %VERIFY_READ - if it is safe
- * to write to a block, it is always safe to read from it.
- * @addr: User space pointer to start of block to check
- * @size: Size of block to check
- *
- * Context: User context only. This function may sleep.
- *
- * Checks if a pointer to a block of memory in user space is valid.
- *
- * Returns true (nonzero) if the memory block may be valid, false (zero)
- * if it is definitely invalid.
+ * get_user - Get a simple variable from user space.
+ * @x: Variable to store result.
+ * @ptr: Source address, in user space.
*
- * Note that, depending on architecture, this function probably just
- * checks that the pointer is in the user space range - after calling
- * this function, memory access functions may still return -EFAULT.
- */
-#define access_ok(type, addr, size) (likely(__range_not_ok(addr, size) == 0))
-
-/*
- * The exception table consists of pairs of addresses: the first is the
- * address of an instruction that is allowed to fault, and the second is
- * the address at which the program should continue. No registers are
- * modified, so it is entirely up to the continuation code to figure out
- * what to do.
+ * Context: User context only. This function may sleep if pagefaults are
+ * enabled.
*
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path. This means when everything is well,
- * we don't even have to jump over them. Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry {
- unsigned long insn, fixup;
-};
-
-extern int fixup_exception(struct pt_regs *regs);
-
-/*
- * These are the main single-value transfer routines. They automatically
- * use the right size if we just have the right pointer type.
+ * This macro copies a single simple variable from user space to kernel
+ * space. It supports simple types like char and int, but not larger
+ * data types like structures or arrays.
*
- * This gets kind of ugly. We want to return _two_ values in "get_user()"
- * and yet we don't want to do any pointers, because that is too much
- * of a performance impact. Thus we have a few rather ugly macros here,
- * and hide all the ugliness from the user.
+ * @ptr must have pointer-to-simple-variable type, and the result of
+ * dereferencing @ptr must be assignable to @x without a cast.
*
- * The "__xxx" versions of the user access functions are versions that
- * do not verify the address space, that must have been done previously
- * with a separate "access_ok()" call (this is used when we do multiple
- * accesses to the same area of user memory).
+ * Return: zero on success, or -EFAULT on error.
+ * On error, the variable @x is set to zero.
*/
-
-extern int __get_user_1(void);
-extern int __get_user_2(void);
-extern int __get_user_4(void);
-extern int __get_user_8(void);
-extern int __get_user_bad(void);
-
-#define __get_user_x(size, ret, x, ptr) \
- asm volatile("call __get_user_" #size \
- : "=a" (ret), "=d" (x) \
- : "0" (ptr)) \
-
-/* Careful: we have to cast the result to the type of the pointer
- * for sign reasons */
+#define get_user(x,ptr) ({ might_fault(); do_get_user_call(get_user,x,ptr); })
/**
- * get_user: - Get a simple variable from user space.
+ * __get_user - Get a simple variable from user space, with less checking.
* @x: Variable to store result.
* @ptr: Source address, in user space.
*
- * Context: User context only. This function may sleep.
+ * Context: User context only. This function may sleep if pagefaults are
+ * enabled.
*
* This macro copies a single simple variable from user space to kernel
* space. It supports simple types like char and int, but not larger
@@ -141,102 +122,79 @@ extern int __get_user_bad(void);
* @ptr must have pointer-to-simple-variable type, and the result of
* dereferencing @ptr must be assignable to @x without a cast.
*
- * Returns zero on success, or -EFAULT on error.
+ * Caller must check the pointer with access_ok() before calling this
+ * function.
+ *
+ * Return: zero on success, or -EFAULT on error.
* On error, the variable @x is set to zero.
*/
-#ifdef CONFIG_X86_32
-#define __get_user_8(__ret_gu, __val_gu, ptr) \
- __get_user_x(X, __ret_gu, __val_gu, ptr)
-#else
-#define __get_user_8(__ret_gu, __val_gu, ptr) \
- __get_user_x(8, __ret_gu, __val_gu, ptr)
-#endif
-
-#define get_user(x, ptr) \
-({ \
- int __ret_gu; \
- unsigned long __val_gu; \
- __chk_user_ptr(ptr); \
- might_fault(); \
- switch (sizeof(*(ptr))) { \
- case 1: \
- __get_user_x(1, __ret_gu, __val_gu, ptr); \
- break; \
- case 2: \
- __get_user_x(2, __ret_gu, __val_gu, ptr); \
- break; \
- case 4: \
- __get_user_x(4, __ret_gu, __val_gu, ptr); \
- break; \
- case 8: \
- __get_user_8(__ret_gu, __val_gu, ptr); \
- break; \
- default: \
- __get_user_x(X, __ret_gu, __val_gu, ptr); \
- break; \
- } \
- (x) = (__typeof__(*(ptr)))__val_gu; \
- __ret_gu; \
-})
-
-#define __put_user_x(size, x, ptr, __ret_pu) \
- asm volatile("call __put_user_" #size : "=a" (__ret_pu) \
- : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
-
+#define __get_user(x,ptr) do_get_user_call(get_user_nocheck,x,ptr)
#ifdef CONFIG_X86_32
-#define __put_user_asm_u64(x, addr, err, errret) \
- asm volatile("1: movl %%eax,0(%2)\n" \
- "2: movl %%edx,4(%2)\n" \
- "3:\n" \
- ".section .fixup,\"ax\"\n" \
- "4: movl %3,%0\n" \
- " jmp 3b\n" \
- ".previous\n" \
- _ASM_EXTABLE(1b, 4b) \
- _ASM_EXTABLE(2b, 4b) \
- : "=r" (err) \
- : "A" (x), "r" (addr), "i" (errret), "0" (err))
-
-#define __put_user_asm_ex_u64(x, addr) \
- asm volatile("1: movl %%eax,0(%1)\n" \
- "2: movl %%edx,4(%1)\n" \
- "3:\n" \
- _ASM_EXTABLE(1b, 2b - 1b) \
- _ASM_EXTABLE(2b, 3b - 2b) \
- : : "A" (x), "r" (addr))
+#define __put_user_goto_u64(x, addr, label) \
+ asm_volatile_goto("\n" \
+ "1: movl %%eax,0(%1)\n" \
+ "2: movl %%edx,4(%1)\n" \
+ _ASM_EXTABLE_UA(1b, %l2) \
+ _ASM_EXTABLE_UA(2b, %l2) \
+ : : "A" (x), "r" (addr) \
+ : : label)
-#define __put_user_x8(x, ptr, __ret_pu) \
- asm volatile("call __put_user_8" : "=a" (__ret_pu) \
- : "A" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx")
#else
-#define __put_user_asm_u64(x, ptr, retval, errret) \
- __put_user_asm(x, ptr, retval, "q", "", "er", errret)
-#define __put_user_asm_ex_u64(x, addr) \
- __put_user_asm_ex(x, addr, "q", "", "er")
-#define __put_user_x8(x, ptr, __ret_pu) __put_user_x(8, x, ptr, __ret_pu)
+#define __put_user_goto_u64(x, ptr, label) \
+ __put_user_goto(x, ptr, "q", "er", label)
#endif
extern void __put_user_bad(void);
/*
* Strange magic calling convention: pointer in %ecx,
- * value in %eax(:%edx), return value in %eax. clobbers %rbx
+ * value in %eax(:%edx), return value in %ecx. clobbers %rbx
*/
extern void __put_user_1(void);
extern void __put_user_2(void);
extern void __put_user_4(void);
extern void __put_user_8(void);
+extern void __put_user_nocheck_1(void);
+extern void __put_user_nocheck_2(void);
+extern void __put_user_nocheck_4(void);
+extern void __put_user_nocheck_8(void);
-#ifdef CONFIG_X86_WP_WORKS_OK
+/*
+ * ptr must be evaluated and assigned to the temporary __ptr_pu before
+ * the assignment of x to __val_pu, to avoid any function calls
+ * involved in the ptr expression (possibly implicitly generated due
+ * to KASAN) from clobbering %ax.
+ */
+#define do_put_user_call(fn,x,ptr) \
+({ \
+ int __ret_pu; \
+ void __user *__ptr_pu; \
+ register __typeof__(*(ptr)) __val_pu asm("%"_ASM_AX); \
+ __typeof__(*(ptr)) __x = (x); /* eval x once */ \
+ __typeof__(ptr) __ptr = (ptr); /* eval ptr once */ \
+ __chk_user_ptr(__ptr); \
+ __ptr_pu = __ptr; \
+ __val_pu = __x; \
+ asm volatile("call __" #fn "_%P[size]" \
+ : "=c" (__ret_pu), \
+ ASM_CALL_CONSTRAINT \
+ : "0" (__ptr_pu), \
+ "r" (__val_pu), \
+ [size] "i" (sizeof(*(ptr))) \
+ :"ebx"); \
+ instrument_put_user(__x, __ptr, sizeof(*(ptr))); \
+ __builtin_expect(__ret_pu, 0); \
+})
/**
- * put_user: - Write a simple value into user space.
+ * put_user - Write a simple value into user space.
* @x: Value to copy to user space.
* @ptr: Destination address, in user space.
*
- * Context: User context only. This function may sleep.
+ * Context: User context only. This function may sleep if pagefaults are
+ * enabled.
*
* This macro copies a single simple value from kernel space to user
* space. It supports simple types like char and int, but not larger
@@ -245,188 +203,269 @@ extern void __put_user_8(void);
* @ptr must have pointer-to-simple-variable type, and @x must be assignable
* to the result of dereferencing @ptr.
*
- * Returns zero on success, or -EFAULT on error.
+ * Return: zero on success, or -EFAULT on error.
*/
-#define put_user(x, ptr) \
-({ \
- int __ret_pu; \
- __typeof__(*(ptr)) __pu_val; \
- __chk_user_ptr(ptr); \
- might_fault(); \
- __pu_val = x; \
- switch (sizeof(*(ptr))) { \
- case 1: \
- __put_user_x(1, __pu_val, ptr, __ret_pu); \
- break; \
- case 2: \
- __put_user_x(2, __pu_val, ptr, __ret_pu); \
- break; \
- case 4: \
- __put_user_x(4, __pu_val, ptr, __ret_pu); \
- break; \
- case 8: \
- __put_user_x8(__pu_val, ptr, __ret_pu); \
- break; \
- default: \
- __put_user_x(X, __pu_val, ptr, __ret_pu); \
- break; \
- } \
- __ret_pu; \
-})
+#define put_user(x, ptr) ({ might_fault(); do_put_user_call(put_user,x,ptr); })
+
+/**
+ * __put_user - Write a simple value into user space, with less checking.
+ * @x: Value to copy to user space.
+ * @ptr: Destination address, in user space.
+ *
+ * Context: User context only. This function may sleep if pagefaults are
+ * enabled.
+ *
+ * This macro copies a single simple value from kernel space to user
+ * space. It supports simple types like char and int, but not larger
+ * data types like structures or arrays.
+ *
+ * @ptr must have pointer-to-simple-variable type, and @x must be assignable
+ * to the result of dereferencing @ptr.
+ *
+ * Caller must check the pointer with access_ok() before calling this
+ * function.
+ *
+ * Return: zero on success, or -EFAULT on error.
+ */
+#define __put_user(x, ptr) do_put_user_call(put_user_nocheck,x,ptr)
-#define __put_user_size(x, ptr, size, retval, errret) \
+#define __put_user_size(x, ptr, size, label) \
do { \
- retval = 0; \
- __chk_user_ptr(ptr); \
+ __typeof__(*(ptr)) __x = (x); /* eval x once */ \
+ __typeof__(ptr) __ptr = (ptr); /* eval ptr once */ \
+ __chk_user_ptr(__ptr); \
switch (size) { \
case 1: \
- __put_user_asm(x, ptr, retval, "b", "b", "iq", errret); \
+ __put_user_goto(__x, __ptr, "b", "iq", label); \
break; \
case 2: \
- __put_user_asm(x, ptr, retval, "w", "w", "ir", errret); \
+ __put_user_goto(__x, __ptr, "w", "ir", label); \
break; \
case 4: \
- __put_user_asm(x, ptr, retval, "l", "k", "ir", errret); \
+ __put_user_goto(__x, __ptr, "l", "ir", label); \
break; \
case 8: \
- __put_user_asm_u64((__typeof__(*ptr))(x), ptr, retval, \
- errret); \
+ __put_user_goto_u64(__x, __ptr, label); \
break; \
default: \
__put_user_bad(); \
} \
+ instrument_put_user(__x, __ptr, size); \
} while (0)
-#define __put_user_size_ex(x, ptr, size) \
+#ifdef CONFIG_CC_HAS_ASM_GOTO_OUTPUT
+
+#ifdef CONFIG_X86_32
+#define __get_user_asm_u64(x, ptr, label) do { \
+ unsigned int __gu_low, __gu_high; \
+ const unsigned int __user *__gu_ptr; \
+ __gu_ptr = (const void __user *)(ptr); \
+ __get_user_asm(__gu_low, __gu_ptr, "l", "=r", label); \
+ __get_user_asm(__gu_high, __gu_ptr+1, "l", "=r", label); \
+ (x) = ((unsigned long long)__gu_high << 32) | __gu_low; \
+} while (0)
+#else
+#define __get_user_asm_u64(x, ptr, label) \
+ __get_user_asm(x, ptr, "q", "=r", label)
+#endif
+
+#define __get_user_size(x, ptr, size, label) \
do { \
__chk_user_ptr(ptr); \
switch (size) { \
- case 1: \
- __put_user_asm_ex(x, ptr, "b", "b", "iq"); \
+ case 1: { \
+ unsigned char x_u8__; \
+ __get_user_asm(x_u8__, ptr, "b", "=q", label); \
+ (x) = x_u8__; \
break; \
+ } \
case 2: \
- __put_user_asm_ex(x, ptr, "w", "w", "ir"); \
+ __get_user_asm(x, ptr, "w", "=r", label); \
break; \
case 4: \
- __put_user_asm_ex(x, ptr, "l", "k", "ir"); \
+ __get_user_asm(x, ptr, "l", "=r", label); \
break; \
case 8: \
- __put_user_asm_ex_u64((__typeof__(*ptr))(x), ptr); \
+ __get_user_asm_u64(x, ptr, label); \
break; \
default: \
- __put_user_bad(); \
+ (x) = __get_user_bad(); \
} \
+ instrument_get_user(x); \
} while (0)
-#else
+#define __get_user_asm(x, addr, itype, ltype, label) \
+ asm_volatile_goto("\n" \
+ "1: mov"itype" %[umem],%[output]\n" \
+ _ASM_EXTABLE_UA(1b, %l2) \
+ : [output] ltype(x) \
+ : [umem] "m" (__m(addr)) \
+ : : label)
-#define __put_user_size(x, ptr, size, retval, errret) \
-do { \
- __typeof__(*(ptr))__pus_tmp = x; \
- retval = 0; \
- \
- if (unlikely(__copy_to_user_ll(ptr, &__pus_tmp, size) != 0)) \
- retval = errret; \
-} while (0)
+#else // !CONFIG_CC_HAS_ASM_GOTO_OUTPUT
-#define put_user(x, ptr) \
-({ \
- int __ret_pu; \
- __typeof__(*(ptr))__pus_tmp = x; \
- __ret_pu = 0; \
- if (unlikely(__copy_to_user_ll(ptr, &__pus_tmp, \
- sizeof(*(ptr))) != 0)) \
- __ret_pu = -EFAULT; \
- __ret_pu; \
+#ifdef CONFIG_X86_32
+#define __get_user_asm_u64(x, ptr, retval) \
+({ \
+ __typeof__(ptr) __ptr = (ptr); \
+ asm volatile("\n" \
+ "1: movl %[lowbits],%%eax\n" \
+ "2: movl %[highbits],%%edx\n" \
+ "3:\n" \
+ _ASM_EXTABLE_TYPE_REG(1b, 3b, EX_TYPE_EFAULT_REG | \
+ EX_FLAG_CLEAR_AX_DX, \
+ %[errout]) \
+ _ASM_EXTABLE_TYPE_REG(2b, 3b, EX_TYPE_EFAULT_REG | \
+ EX_FLAG_CLEAR_AX_DX, \
+ %[errout]) \
+ : [errout] "=r" (retval), \
+ [output] "=&A"(x) \
+ : [lowbits] "m" (__m(__ptr)), \
+ [highbits] "m" __m(((u32 __user *)(__ptr)) + 1), \
+ "0" (retval)); \
})
-#endif
-#ifdef CONFIG_X86_32
-#define __get_user_asm_u64(x, ptr, retval, errret) (x) = __get_user_bad()
-#define __get_user_asm_ex_u64(x, ptr) (x) = __get_user_bad()
#else
-#define __get_user_asm_u64(x, ptr, retval, errret) \
- __get_user_asm(x, ptr, retval, "q", "", "=r", errret)
-#define __get_user_asm_ex_u64(x, ptr) \
- __get_user_asm_ex(x, ptr, "q", "", "=r")
+#define __get_user_asm_u64(x, ptr, retval) \
+ __get_user_asm(x, ptr, retval, "q")
#endif
-#define __get_user_size(x, ptr, size, retval, errret) \
+#define __get_user_size(x, ptr, size, retval) \
do { \
+ unsigned char x_u8__; \
+ \
retval = 0; \
__chk_user_ptr(ptr); \
switch (size) { \
case 1: \
- __get_user_asm(x, ptr, retval, "b", "b", "=q", errret); \
+ __get_user_asm(x_u8__, ptr, retval, "b"); \
+ (x) = x_u8__; \
break; \
case 2: \
- __get_user_asm(x, ptr, retval, "w", "w", "=r", errret); \
+ __get_user_asm(x, ptr, retval, "w"); \
break; \
case 4: \
- __get_user_asm(x, ptr, retval, "l", "k", "=r", errret); \
+ __get_user_asm(x, ptr, retval, "l"); \
break; \
case 8: \
- __get_user_asm_u64(x, ptr, retval, errret); \
+ __get_user_asm_u64(x, ptr, retval); \
break; \
default: \
(x) = __get_user_bad(); \
} \
} while (0)
-#define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \
- asm volatile("1: mov"itype" %2,%"rtype"1\n" \
+#define __get_user_asm(x, addr, err, itype) \
+ asm volatile("\n" \
+ "1: mov"itype" %[umem],%[output]\n" \
"2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: mov %3,%0\n" \
- " xor"itype" %"rtype"1,%"rtype"1\n" \
- " jmp 2b\n" \
- ".previous\n" \
- _ASM_EXTABLE(1b, 3b) \
- : "=r" (err), ltype(x) \
- : "m" (__m(addr)), "i" (errret), "0" (err))
-
-#define __get_user_size_ex(x, ptr, size) \
-do { \
- __chk_user_ptr(ptr); \
- switch (size) { \
- case 1: \
- __get_user_asm_ex(x, ptr, "b", "b", "=q"); \
- break; \
- case 2: \
- __get_user_asm_ex(x, ptr, "w", "w", "=r"); \
- break; \
- case 4: \
- __get_user_asm_ex(x, ptr, "l", "k", "=r"); \
- break; \
- case 8: \
- __get_user_asm_ex_u64(x, ptr); \
- break; \
- default: \
- (x) = __get_user_bad(); \
- } \
-} while (0)
+ _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_EFAULT_REG | \
+ EX_FLAG_CLEAR_AX, \
+ %[errout]) \
+ : [errout] "=r" (err), \
+ [output] "=a" (x) \
+ : [umem] "m" (__m(addr)), \
+ "0" (err))
+
+#endif // CONFIG_CC_HAS_ASM_GOTO_OUTPUT
+
+#ifdef CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT
+#define __try_cmpxchg_user_asm(itype, ltype, _ptr, _pold, _new, label) ({ \
+ bool success; \
+ __typeof__(_ptr) _old = (__typeof__(_ptr))(_pold); \
+ __typeof__(*(_ptr)) __old = *_old; \
+ __typeof__(*(_ptr)) __new = (_new); \
+ asm_volatile_goto("\n" \
+ "1: " LOCK_PREFIX "cmpxchg"itype" %[new], %[ptr]\n"\
+ _ASM_EXTABLE_UA(1b, %l[label]) \
+ : CC_OUT(z) (success), \
+ [ptr] "+m" (*_ptr), \
+ [old] "+a" (__old) \
+ : [new] ltype (__new) \
+ : "memory" \
+ : label); \
+ if (unlikely(!success)) \
+ *_old = __old; \
+ likely(success); })
-#define __get_user_asm_ex(x, addr, itype, rtype, ltype) \
- asm volatile("1: mov"itype" %1,%"rtype"0\n" \
+#ifdef CONFIG_X86_32
+#define __try_cmpxchg64_user_asm(_ptr, _pold, _new, label) ({ \
+ bool success; \
+ __typeof__(_ptr) _old = (__typeof__(_ptr))(_pold); \
+ __typeof__(*(_ptr)) __old = *_old; \
+ __typeof__(*(_ptr)) __new = (_new); \
+ asm_volatile_goto("\n" \
+ "1: " LOCK_PREFIX "cmpxchg8b %[ptr]\n" \
+ _ASM_EXTABLE_UA(1b, %l[label]) \
+ : CC_OUT(z) (success), \
+ "+A" (__old), \
+ [ptr] "+m" (*_ptr) \
+ : "b" ((u32)__new), \
+ "c" ((u32)((u64)__new >> 32)) \
+ : "memory" \
+ : label); \
+ if (unlikely(!success)) \
+ *_old = __old; \
+ likely(success); })
+#endif // CONFIG_X86_32
+#else // !CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT
+#define __try_cmpxchg_user_asm(itype, ltype, _ptr, _pold, _new, label) ({ \
+ int __err = 0; \
+ bool success; \
+ __typeof__(_ptr) _old = (__typeof__(_ptr))(_pold); \
+ __typeof__(*(_ptr)) __old = *_old; \
+ __typeof__(*(_ptr)) __new = (_new); \
+ asm volatile("\n" \
+ "1: " LOCK_PREFIX "cmpxchg"itype" %[new], %[ptr]\n"\
+ CC_SET(z) \
"2:\n" \
- _ASM_EXTABLE(1b, 2b - 1b) \
- : ltype(x) : "m" (__m(addr)))
-
-#define __put_user_nocheck(x, ptr, size) \
-({ \
- int __pu_err; \
- __put_user_size((x), (ptr), (size), __pu_err, -EFAULT); \
- __pu_err; \
-})
+ _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_EFAULT_REG, \
+ %[errout]) \
+ : CC_OUT(z) (success), \
+ [errout] "+r" (__err), \
+ [ptr] "+m" (*_ptr), \
+ [old] "+a" (__old) \
+ : [new] ltype (__new) \
+ : "memory"); \
+ if (unlikely(__err)) \
+ goto label; \
+ if (unlikely(!success)) \
+ *_old = __old; \
+ likely(success); })
-#define __get_user_nocheck(x, ptr, size) \
-({ \
- int __gu_err; \
- unsigned long __gu_val; \
- __get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT); \
- (x) = (__force __typeof__(*(ptr)))__gu_val; \
- __gu_err; \
-})
+#ifdef CONFIG_X86_32
+/*
+ * Unlike the normal CMPXCHG, use output GPR for both success/fail and error.
+ * There are only six GPRs available and four (EAX, EBX, ECX, and EDX) are
+ * hardcoded by CMPXCHG8B, leaving only ESI and EDI. If the compiler uses
+ * both ESI and EDI for the memory operand, compilation will fail if the error
+ * is an input+output as there will be no register available for input.
+ */
+#define __try_cmpxchg64_user_asm(_ptr, _pold, _new, label) ({ \
+ int __result; \
+ __typeof__(_ptr) _old = (__typeof__(_ptr))(_pold); \
+ __typeof__(*(_ptr)) __old = *_old; \
+ __typeof__(*(_ptr)) __new = (_new); \
+ asm volatile("\n" \
+ "1: " LOCK_PREFIX "cmpxchg8b %[ptr]\n" \
+ "mov $0, %[result]\n\t" \
+ "setz %b[result]\n" \
+ "2:\n" \
+ _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_EFAULT_REG, \
+ %[result]) \
+ : [result] "=q" (__result), \
+ "+A" (__old), \
+ [ptr] "+m" (*_ptr) \
+ : "b" ((u32)__new), \
+ "c" ((u32)((u64)__new >> 32)) \
+ : "memory", "cc"); \
+ if (unlikely(__result < 0)) \
+ goto label; \
+ if (unlikely(!__result)) \
+ *_old = __old; \
+ likely(__result); })
+#endif // CONFIG_X86_32
+#endif // CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT
/* FIXME: this hack is definitely wrong -AK */
struct __large_struct { unsigned long buf[100]; };
@@ -437,141 +476,167 @@ struct __large_struct { unsigned long buf[100]; };
* we do not write to any memory gcc knows about, so there are no
* aliasing issues.
*/
-#define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \
- asm volatile("1: mov"itype" %"rtype"1,%2\n" \
- "2:\n" \
- ".section .fixup,\"ax\"\n" \
- "3: mov %3,%0\n" \
- " jmp 2b\n" \
- ".previous\n" \
- _ASM_EXTABLE(1b, 3b) \
- : "=r"(err) \
- : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err))
-
-#define __put_user_asm_ex(x, addr, itype, rtype, ltype) \
- asm volatile("1: mov"itype" %"rtype"0,%1\n" \
- "2:\n" \
- _ASM_EXTABLE(1b, 2b - 1b) \
- : : ltype(x), "m" (__m(addr)))
+#define __put_user_goto(x, addr, itype, ltype, label) \
+ asm_volatile_goto("\n" \
+ "1: mov"itype" %0,%1\n" \
+ _ASM_EXTABLE_UA(1b, %l2) \
+ : : ltype(x), "m" (__m(addr)) \
+ : : label)
+
+extern unsigned long
+copy_from_user_nmi(void *to, const void __user *from, unsigned long n);
+extern __must_check long
+strncpy_from_user(char *dst, const char __user *src, long count);
+
+extern __must_check long strnlen_user(const char __user *str, long n);
+
+#ifdef CONFIG_ARCH_HAS_COPY_MC
+unsigned long __must_check
+copy_mc_to_kernel(void *to, const void *from, unsigned len);
+#define copy_mc_to_kernel copy_mc_to_kernel
+
+unsigned long __must_check
+copy_mc_to_user(void *to, const void *from, unsigned len);
+#endif
/*
- * uaccess_try and catch
- */
-#define uaccess_try do { \
- int prev_err = current_thread_info()->uaccess_err; \
- current_thread_info()->uaccess_err = 0; \
- barrier();
-
-#define uaccess_catch(err) \
- (err) |= current_thread_info()->uaccess_err; \
- current_thread_info()->uaccess_err = prev_err; \
-} while (0)
-
-/**
- * __get_user: - Get a simple variable from user space, with less checking.
- * @x: Variable to store result.
- * @ptr: Source address, in user space.
- *
- * Context: User context only. This function may sleep.
- *
- * This macro copies a single simple variable from user space to kernel
- * space. It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and the result of
- * dereferencing @ptr must be assignable to @x without a cast.
- *
- * Caller must check the pointer with access_ok() before calling this
- * function.
- *
- * Returns zero on success, or -EFAULT on error.
- * On error, the variable @x is set to zero.
- */
-
-#define __get_user(x, ptr) \
- __get_user_nocheck((x), (ptr), sizeof(*(ptr)))
-
-/**
- * __put_user: - Write a simple value into user space, with less checking.
- * @x: Value to copy to user space.
- * @ptr: Destination address, in user space.
- *
- * Context: User context only. This function may sleep.
- *
- * This macro copies a single simple value from kernel space to user
- * space. It supports simple types like char and int, but not larger
- * data types like structures or arrays.
- *
- * @ptr must have pointer-to-simple-variable type, and @x must be assignable
- * to the result of dereferencing @ptr.
- *
- * Caller must check the pointer with access_ok() before calling this
- * function.
- *
- * Returns zero on success, or -EFAULT on error.
+ * movsl can be slow when source and dest are not both 8-byte aligned
*/
+#ifdef CONFIG_X86_INTEL_USERCOPY
+extern struct movsl_mask {
+ int mask;
+} ____cacheline_aligned_in_smp movsl_mask;
+#endif
-#define __put_user(x, ptr) \
- __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
-
-#define __get_user_unaligned __get_user
-#define __put_user_unaligned __put_user
+#define ARCH_HAS_NOCACHE_UACCESS 1
/*
- * {get|put}_user_try and catch
- *
- * get_user_try {
- * get_user_ex(...);
- * } get_user_catch(err)
+ * The "unsafe" user accesses aren't really "unsafe", but the naming
+ * is a big fat warning: you have to not only do the access_ok()
+ * checking before using them, but you have to surround them with the
+ * user_access_begin/end() pair.
*/
-#define get_user_try uaccess_try
-#define get_user_catch(err) uaccess_catch(err)
-
-#define get_user_ex(x, ptr) do { \
- unsigned long __gue_val; \
- __get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr)))); \
- (x) = (__force __typeof__(*(ptr)))__gue_val; \
+static __must_check __always_inline bool user_access_begin(const void __user *ptr, size_t len)
+{
+ if (unlikely(!access_ok(ptr,len)))
+ return 0;
+ __uaccess_begin_nospec();
+ return 1;
+}
+#define user_access_begin(a,b) user_access_begin(a,b)
+#define user_access_end() __uaccess_end()
+
+#define user_access_save() smap_save()
+#define user_access_restore(x) smap_restore(x)
+
+#define unsafe_put_user(x, ptr, label) \
+ __put_user_size((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)), label)
+
+#ifdef CONFIG_CC_HAS_ASM_GOTO_OUTPUT
+#define unsafe_get_user(x, ptr, err_label) \
+do { \
+ __inttype(*(ptr)) __gu_val; \
+ __get_user_size(__gu_val, (ptr), sizeof(*(ptr)), err_label); \
+ (x) = (__force __typeof__(*(ptr)))__gu_val; \
} while (0)
-
-#ifdef CONFIG_X86_WP_WORKS_OK
-
-#define put_user_try uaccess_try
-#define put_user_catch(err) uaccess_catch(err)
-
-#define put_user_ex(x, ptr) \
- __put_user_size_ex((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr)))
-
-#else /* !CONFIG_X86_WP_WORKS_OK */
-
-#define put_user_try do { \
- int __uaccess_err = 0;
-
-#define put_user_catch(err) \
- (err) |= __uaccess_err; \
+#else // !CONFIG_CC_HAS_ASM_GOTO_OUTPUT
+#define unsafe_get_user(x, ptr, err_label) \
+do { \
+ int __gu_err; \
+ __inttype(*(ptr)) __gu_val; \
+ __get_user_size(__gu_val, (ptr), sizeof(*(ptr)), __gu_err); \
+ (x) = (__force __typeof__(*(ptr)))__gu_val; \
+ if (unlikely(__gu_err)) goto err_label; \
} while (0)
+#endif // CONFIG_CC_HAS_ASM_GOTO_OUTPUT
-#define put_user_ex(x, ptr) do { \
- __uaccess_err |= __put_user(x, ptr); \
-} while (0)
+extern void __try_cmpxchg_user_wrong_size(void);
-#endif /* CONFIG_X86_WP_WORKS_OK */
+#ifndef CONFIG_X86_32
+#define __try_cmpxchg64_user_asm(_ptr, _oldp, _nval, _label) \
+ __try_cmpxchg_user_asm("q", "r", (_ptr), (_oldp), (_nval), _label)
+#endif
/*
- * movsl can be slow when source and dest are not both 8-byte aligned
+ * Force the pointer to u<size> to match the size expected by the asm helper.
+ * clang/LLVM compiles all cases and only discards the unused paths after
+ * processing errors, which breaks i386 if the pointer is an 8-byte value.
*/
-#ifdef CONFIG_X86_INTEL_USERCOPY
-extern struct movsl_mask {
- int mask;
-} ____cacheline_aligned_in_smp movsl_mask;
-#endif
+#define unsafe_try_cmpxchg_user(_ptr, _oldp, _nval, _label) ({ \
+ bool __ret; \
+ __chk_user_ptr(_ptr); \
+ switch (sizeof(*(_ptr))) { \
+ case 1: __ret = __try_cmpxchg_user_asm("b", "q", \
+ (__force u8 *)(_ptr), (_oldp), \
+ (_nval), _label); \
+ break; \
+ case 2: __ret = __try_cmpxchg_user_asm("w", "r", \
+ (__force u16 *)(_ptr), (_oldp), \
+ (_nval), _label); \
+ break; \
+ case 4: __ret = __try_cmpxchg_user_asm("l", "r", \
+ (__force u32 *)(_ptr), (_oldp), \
+ (_nval), _label); \
+ break; \
+ case 8: __ret = __try_cmpxchg64_user_asm((__force u64 *)(_ptr), (_oldp),\
+ (_nval), _label); \
+ break; \
+ default: __try_cmpxchg_user_wrong_size(); \
+ } \
+ __ret; })
+
+/* "Returns" 0 on success, 1 on failure, -EFAULT if the access faults. */
+#define __try_cmpxchg_user(_ptr, _oldp, _nval, _label) ({ \
+ int __ret = -EFAULT; \
+ __uaccess_begin_nospec(); \
+ __ret = !unsafe_try_cmpxchg_user(_ptr, _oldp, _nval, _label); \
+_label: \
+ __uaccess_end(); \
+ __ret; \
+ })
-#define ARCH_HAS_NOCACHE_UACCESS 1
+/*
+ * We want the unsafe accessors to always be inlined and use
+ * the error labels - thus the macro games.
+ */
+#define unsafe_copy_loop(dst, src, len, type, label) \
+ while (len >= sizeof(type)) { \
+ unsafe_put_user(*(type *)(src),(type __user *)(dst),label); \
+ dst += sizeof(type); \
+ src += sizeof(type); \
+ len -= sizeof(type); \
+ }
+
+#define unsafe_copy_to_user(_dst,_src,_len,label) \
+do { \
+ char __user *__ucu_dst = (_dst); \
+ const char *__ucu_src = (_src); \
+ size_t __ucu_len = (_len); \
+ unsafe_copy_loop(__ucu_dst, __ucu_src, __ucu_len, u64, label); \
+ unsafe_copy_loop(__ucu_dst, __ucu_src, __ucu_len, u32, label); \
+ unsafe_copy_loop(__ucu_dst, __ucu_src, __ucu_len, u16, label); \
+ unsafe_copy_loop(__ucu_dst, __ucu_src, __ucu_len, u8, label); \
+} while (0)
-#ifdef CONFIG_X86_32
-# include "uaccess_32.h"
-#else
-# include "uaccess_64.h"
-#endif
+#ifdef CONFIG_CC_HAS_ASM_GOTO_OUTPUT
+#define __get_kernel_nofault(dst, src, type, err_label) \
+ __get_user_size(*((type *)(dst)), (__force type __user *)(src), \
+ sizeof(type), err_label)
+#else // !CONFIG_CC_HAS_ASM_GOTO_OUTPUT
+#define __get_kernel_nofault(dst, src, type, err_label) \
+do { \
+ int __kr_err; \
+ \
+ __get_user_size(*((type *)(dst)), (__force type __user *)(src), \
+ sizeof(type), __kr_err); \
+ if (unlikely(__kr_err)) \
+ goto err_label; \
+} while (0)
+#endif // CONFIG_CC_HAS_ASM_GOTO_OUTPUT
+
+#define __put_kernel_nofault(dst, src, type, err_label) \
+ __put_user_size(*((type *)(src)), (__force type __user *)(dst), \
+ sizeof(type), err_label)
#endif /* _ASM_X86_UACCESS_H */
diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
index 088d09fb1615..40379a1adbb8 100644
--- a/arch/x86/include/asm/uaccess_32.h
+++ b/arch/x86/include/asm/uaccess_32.h
@@ -1,181 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_UACCESS_32_H
#define _ASM_X86_UACCESS_32_H
/*
* User space memory access functions
*/
-#include <linux/errno.h>
-#include <linux/thread_info.h>
-#include <linux/prefetch.h>
#include <linux/string.h>
#include <asm/asm.h>
#include <asm/page.h>
-unsigned long __must_check __copy_to_user_ll
- (void __user *to, const void *from, unsigned long n);
-unsigned long __must_check __copy_from_user_ll
- (void *to, const void __user *from, unsigned long n);
-unsigned long __must_check __copy_from_user_ll_nozero
- (void *to, const void __user *from, unsigned long n);
-unsigned long __must_check __copy_from_user_ll_nocache
- (void *to, const void __user *from, unsigned long n);
+unsigned long __must_check __copy_user_ll
+ (void *to, const void *from, unsigned long n);
unsigned long __must_check __copy_from_user_ll_nocache_nozero
(void *to, const void __user *from, unsigned long n);
-/**
- * __copy_to_user_inatomic: - Copy a block of data into user space, with less checking.
- * @to: Destination address, in user space.
- * @from: Source address, in kernel space.
- * @n: Number of bytes to copy.
- *
- * Context: User context only.
- *
- * Copy data from kernel space to user space. Caller must check
- * the specified block with access_ok() before calling this function.
- * The caller should also make sure he pins the user space address
- * so that we don't result in page fault and sleep.
- *
- * Here we special-case 1, 2 and 4-byte copy_*_user invocations. On a fault
- * we return the initial request size (1, 2 or 4), as copy_*_user should do.
- * If a store crosses a page boundary and gets a fault, the x86 will not write
- * anything, so this is accurate.
- */
-
static __always_inline unsigned long __must_check
-__copy_to_user_inatomic(void __user *to, const void *from, unsigned long n)
+raw_copy_to_user(void __user *to, const void *from, unsigned long n)
{
- if (__builtin_constant_p(n)) {
- unsigned long ret;
-
- switch (n) {
- case 1:
- __put_user_size(*(u8 *)from, (u8 __user *)to,
- 1, ret, 1);
- return ret;
- case 2:
- __put_user_size(*(u16 *)from, (u16 __user *)to,
- 2, ret, 2);
- return ret;
- case 4:
- __put_user_size(*(u32 *)from, (u32 __user *)to,
- 4, ret, 4);
- return ret;
- }
- }
- return __copy_to_user_ll(to, from, n);
-}
-
-/**
- * __copy_to_user: - Copy a block of data into user space, with less checking.
- * @to: Destination address, in user space.
- * @from: Source address, in kernel space.
- * @n: Number of bytes to copy.
- *
- * Context: User context only. This function may sleep.
- *
- * Copy data from kernel space to user space. Caller must check
- * the specified block with access_ok() before calling this function.
- *
- * Returns number of bytes that could not be copied.
- * On success, this will be zero.
- */
-static __always_inline unsigned long __must_check
-__copy_to_user(void __user *to, const void *from, unsigned long n)
-{
- might_fault();
- return __copy_to_user_inatomic(to, from, n);
+ return __copy_user_ll((__force void *)to, from, n);
}
static __always_inline unsigned long
-__copy_from_user_inatomic(void *to, const void __user *from, unsigned long n)
+raw_copy_from_user(void *to, const void __user *from, unsigned long n)
{
- /* Avoid zeroing the tail if the copy fails..
- * If 'n' is constant and 1, 2, or 4, we do still zero on a failure,
- * but as the zeroing behaviour is only significant when n is not
- * constant, that shouldn't be a problem.
- */
- if (__builtin_constant_p(n)) {
- unsigned long ret;
-
- switch (n) {
- case 1:
- __get_user_size(*(u8 *)to, from, 1, ret, 1);
- return ret;
- case 2:
- __get_user_size(*(u16 *)to, from, 2, ret, 2);
- return ret;
- case 4:
- __get_user_size(*(u32 *)to, from, 4, ret, 4);
- return ret;
- }
- }
- return __copy_from_user_ll_nozero(to, from, n);
-}
-
-/**
- * __copy_from_user: - Copy a block of data from user space, with less checking.
- * @to: Destination address, in kernel space.
- * @from: Source address, in user space.
- * @n: Number of bytes to copy.
- *
- * Context: User context only. This function may sleep.
- *
- * Copy data from user space to kernel space. Caller must check
- * the specified block with access_ok() before calling this function.
- *
- * Returns number of bytes that could not be copied.
- * On success, this will be zero.
- *
- * If some data could not be copied, this function will pad the copied
- * data to the requested size using zero bytes.
- *
- * An alternate version - __copy_from_user_inatomic() - may be called from
- * atomic context and will fail rather than sleep. In this case the
- * uncopied bytes will *NOT* be padded with zeros. See fs/filemap.h
- * for explanation of why this is needed.
- */
-static __always_inline unsigned long
-__copy_from_user(void *to, const void __user *from, unsigned long n)
-{
- might_fault();
- if (__builtin_constant_p(n)) {
- unsigned long ret;
-
- switch (n) {
- case 1:
- __get_user_size(*(u8 *)to, from, 1, ret, 1);
- return ret;
- case 2:
- __get_user_size(*(u16 *)to, from, 2, ret, 2);
- return ret;
- case 4:
- __get_user_size(*(u32 *)to, from, 4, ret, 4);
- return ret;
- }
- }
- return __copy_from_user_ll(to, from, n);
-}
-
-static __always_inline unsigned long __copy_from_user_nocache(void *to,
- const void __user *from, unsigned long n)
-{
- might_fault();
- if (__builtin_constant_p(n)) {
- unsigned long ret;
-
- switch (n) {
- case 1:
- __get_user_size(*(u8 *)to, from, 1, ret, 1);
- return ret;
- case 2:
- __get_user_size(*(u16 *)to, from, 2, ret, 2);
- return ret;
- case 4:
- __get_user_size(*(u32 *)to, from, 4, ret, 4);
- return ret;
- }
- }
- return __copy_from_user_ll_nocache(to, from, n);
+ return __copy_user_ll(to, (__force const void *)from, n);
}
static __always_inline unsigned long
@@ -185,57 +33,6 @@ __copy_from_user_inatomic_nocache(void *to, const void __user *from,
return __copy_from_user_ll_nocache_nozero(to, from, n);
}
-unsigned long __must_check copy_to_user(void __user *to,
- const void *from, unsigned long n);
-unsigned long __must_check _copy_from_user(void *to,
- const void __user *from,
- unsigned long n);
-
-
-extern void copy_from_user_overflow(void)
-#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
- __compiletime_error("copy_from_user() buffer size is not provably correct")
-#else
- __compiletime_warning("copy_from_user() buffer size is not provably correct")
-#endif
-;
-
-static inline unsigned long __must_check copy_from_user(void *to,
- const void __user *from,
- unsigned long n)
-{
- int sz = __compiletime_object_size(to);
-
- if (likely(sz == -1 || sz >= n))
- n = _copy_from_user(to, from, n);
- else
- copy_from_user_overflow();
-
- return n;
-}
-
-long __must_check strncpy_from_user(char *dst, const char __user *src,
- long count);
-long __must_check __strncpy_from_user(char *dst,
- const char __user *src, long count);
-
-/**
- * strlen_user: - Get the size of a string in user space.
- * @str: The string to measure.
- *
- * Context: User context only. This function may sleep.
- *
- * Get the size of a NUL-terminated string in user space.
- *
- * Returns the size of the string INCLUDING the terminating NUL.
- * On exception, returns 0.
- *
- * If there is a limit on the length of a valid string, you may wish to
- * consider using strnlen_user() instead.
- */
-#define strlen_user(str) strnlen_user(str, LONG_MAX)
-
-long strnlen_user(const char __user *str, long n);
unsigned long __must_check clear_user(void __user *mem, unsigned long len);
unsigned long __must_check __clear_user(void __user *mem, unsigned long len);
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 316708d5af92..81b826d3b753 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_UACCESS_64_H
#define _ASM_X86_UACCESS_64_H
@@ -5,250 +6,189 @@
* User space memory access functions
*/
#include <linux/compiler.h>
-#include <linux/errno.h>
-#include <linux/prefetch.h>
#include <linux/lockdep.h>
+#include <linux/kasan-checks.h>
#include <asm/alternative.h>
-#include <asm/cpufeature.h>
+#include <asm/cpufeatures.h>
#include <asm/page.h>
+#ifdef CONFIG_ADDRESS_MASKING
/*
- * Copy To/From Userspace
+ * Mask out tag bits from the address.
*/
-
-/* Handles exceptions in both to and from, but doesn't do access_ok */
-__must_check unsigned long
-copy_user_generic_string(void *to, const void *from, unsigned len);
-__must_check unsigned long
-copy_user_generic_unrolled(void *to, const void *from, unsigned len);
-
-static __always_inline __must_check unsigned long
-copy_user_generic(void *to, const void *from, unsigned len)
+static inline unsigned long __untagged_addr(unsigned long addr)
{
- unsigned ret;
-
- alternative_call(copy_user_generic_unrolled,
- copy_user_generic_string,
- X86_FEATURE_REP_GOOD,
- ASM_OUTPUT2("=a" (ret), "=D" (to), "=S" (from),
- "=d" (len)),
- "1" (to), "2" (from), "3" (len)
- : "memory", "rcx", "r8", "r9", "r10", "r11");
- return ret;
+ /*
+ * Refer tlbstate_untag_mask directly to avoid RIP-relative relocation
+ * in alternative instructions. The relocation gets wrong when gets
+ * copied to the target place.
+ */
+ asm (ALTERNATIVE("",
+ "and %%gs:tlbstate_untag_mask, %[addr]\n\t", X86_FEATURE_LAM)
+ : [addr] "+r" (addr) : "m" (tlbstate_untag_mask));
+
+ return addr;
}
-__must_check unsigned long
-_copy_to_user(void __user *to, const void *from, unsigned len);
-__must_check unsigned long
-_copy_from_user(void *to, const void __user *from, unsigned len);
-__must_check unsigned long
-copy_in_user(void __user *to, const void __user *from, unsigned len);
+#define untagged_addr(addr) ({ \
+ unsigned long __addr = (__force unsigned long)(addr); \
+ (__force __typeof__(addr))__untagged_addr(__addr); \
+})
-static inline unsigned long __must_check copy_from_user(void *to,
- const void __user *from,
- unsigned long n)
+static inline unsigned long __untagged_addr_remote(struct mm_struct *mm,
+ unsigned long addr)
{
- int sz = __compiletime_object_size(to);
-
- might_fault();
- if (likely(sz == -1 || sz >= n))
- n = _copy_from_user(to, from, n);
-#ifdef CONFIG_DEBUG_VM
- else
- WARN(1, "Buffer overflow detected!\n");
-#endif
- return n;
+ mmap_assert_locked(mm);
+ return addr & (mm)->context.untag_mask;
}
-static __always_inline __must_check
-int copy_to_user(void __user *dst, const void *src, unsigned size)
-{
- might_fault();
-
- return _copy_to_user(dst, src, size);
-}
+#define untagged_addr_remote(mm, addr) ({ \
+ unsigned long __addr = (__force unsigned long)(addr); \
+ (__force __typeof__(addr))__untagged_addr_remote(mm, __addr); \
+})
-static __always_inline __must_check
-int __copy_from_user(void *dst, const void __user *src, unsigned size)
-{
- int ret = 0;
+#endif
- might_fault();
- if (!__builtin_constant_p(size))
- return copy_user_generic(dst, (__force void *)src, size);
- switch (size) {
- case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src,
- ret, "b", "b", "=q", 1);
- return ret;
- case 2:__get_user_asm(*(u16 *)dst, (u16 __user *)src,
- ret, "w", "w", "=r", 2);
- return ret;
- case 4:__get_user_asm(*(u32 *)dst, (u32 __user *)src,
- ret, "l", "k", "=r", 4);
- return ret;
- case 8:__get_user_asm(*(u64 *)dst, (u64 __user *)src,
- ret, "q", "", "=r", 8);
- return ret;
- case 10:
- __get_user_asm(*(u64 *)dst, (u64 __user *)src,
- ret, "q", "", "=r", 10);
- if (unlikely(ret))
- return ret;
- __get_user_asm(*(u16 *)(8 + (char *)dst),
- (u16 __user *)(8 + (char __user *)src),
- ret, "w", "w", "=r", 2);
- return ret;
- case 16:
- __get_user_asm(*(u64 *)dst, (u64 __user *)src,
- ret, "q", "", "=r", 16);
- if (unlikely(ret))
- return ret;
- __get_user_asm(*(u64 *)(8 + (char *)dst),
- (u64 __user *)(8 + (char __user *)src),
- ret, "q", "", "=r", 8);
- return ret;
- default:
- return copy_user_generic(dst, (__force void *)src, size);
- }
-}
+/*
+ * The virtual address space space is logically divided into a kernel
+ * half and a user half. When cast to a signed type, user pointers
+ * are positive and kernel pointers are negative.
+ */
+#define valid_user_address(x) ((long)(x) >= 0)
-static __always_inline __must_check
-int __copy_to_user(void __user *dst, const void *src, unsigned size)
+/*
+ * User pointers can have tag bits on x86-64. This scheme tolerates
+ * arbitrary values in those bits rather then masking them off.
+ *
+ * Enforce two rules:
+ * 1. 'ptr' must be in the user half of the address space
+ * 2. 'ptr+size' must not overflow into kernel addresses
+ *
+ * Note that addresses around the sign change are not valid addresses,
+ * and will GP-fault even with LAM enabled if the sign bit is set (see
+ * "CR3.LAM_SUP" that can narrow the canonicality check if we ever
+ * enable it, but not remove it entirely).
+ *
+ * So the "overflow into kernel addresses" does not imply some sudden
+ * exact boundary at the sign bit, and we can allow a lot of slop on the
+ * size check.
+ *
+ * In fact, we could probably remove the size check entirely, since
+ * any kernel accesses will be in increasing address order starting
+ * at 'ptr', and even if the end might be in kernel space, we'll
+ * hit the GP faults for non-canonical accesses before we ever get
+ * there.
+ *
+ * That's a separate optimization, for now just handle the small
+ * constant case.
+ */
+static inline bool __access_ok(const void __user *ptr, unsigned long size)
{
- int ret = 0;
-
- might_fault();
- if (!__builtin_constant_p(size))
- return copy_user_generic((__force void *)dst, src, size);
- switch (size) {
- case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst,
- ret, "b", "b", "iq", 1);
- return ret;
- case 2:__put_user_asm(*(u16 *)src, (u16 __user *)dst,
- ret, "w", "w", "ir", 2);
- return ret;
- case 4:__put_user_asm(*(u32 *)src, (u32 __user *)dst,
- ret, "l", "k", "ir", 4);
- return ret;
- case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst,
- ret, "q", "", "er", 8);
- return ret;
- case 10:
- __put_user_asm(*(u64 *)src, (u64 __user *)dst,
- ret, "q", "", "er", 10);
- if (unlikely(ret))
- return ret;
- asm("":::"memory");
- __put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst,
- ret, "w", "w", "ir", 2);
- return ret;
- case 16:
- __put_user_asm(*(u64 *)src, (u64 __user *)dst,
- ret, "q", "", "er", 16);
- if (unlikely(ret))
- return ret;
- asm("":::"memory");
- __put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst,
- ret, "q", "", "er", 8);
- return ret;
- default:
- return copy_user_generic((__force void *)dst, src, size);
+ if (__builtin_constant_p(size <= PAGE_SIZE) && size <= PAGE_SIZE) {
+ return valid_user_address(ptr);
+ } else {
+ unsigned long sum = size + (unsigned long)ptr;
+ return valid_user_address(sum) && sum >= (unsigned long)ptr;
}
}
+#define __access_ok __access_ok
-static __always_inline __must_check
-int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
-{
- int ret = 0;
+/*
+ * Copy To/From Userspace
+ */
- might_fault();
- if (!__builtin_constant_p(size))
- return copy_user_generic((__force void *)dst,
- (__force void *)src, size);
- switch (size) {
- case 1: {
- u8 tmp;
- __get_user_asm(tmp, (u8 __user *)src,
- ret, "b", "b", "=q", 1);
- if (likely(!ret))
- __put_user_asm(tmp, (u8 __user *)dst,
- ret, "b", "b", "iq", 1);
- return ret;
- }
- case 2: {
- u16 tmp;
- __get_user_asm(tmp, (u16 __user *)src,
- ret, "w", "w", "=r", 2);
- if (likely(!ret))
- __put_user_asm(tmp, (u16 __user *)dst,
- ret, "w", "w", "ir", 2);
- return ret;
- }
+/* Handles exceptions in both to and from, but doesn't do access_ok */
+__must_check unsigned long
+rep_movs_alternative(void *to, const void *from, unsigned len);
- case 4: {
- u32 tmp;
- __get_user_asm(tmp, (u32 __user *)src,
- ret, "l", "k", "=r", 4);
- if (likely(!ret))
- __put_user_asm(tmp, (u32 __user *)dst,
- ret, "l", "k", "ir", 4);
- return ret;
- }
- case 8: {
- u64 tmp;
- __get_user_asm(tmp, (u64 __user *)src,
- ret, "q", "", "=r", 8);
- if (likely(!ret))
- __put_user_asm(tmp, (u64 __user *)dst,
- ret, "q", "", "er", 8);
- return ret;
- }
- default:
- return copy_user_generic((__force void *)dst,
- (__force void *)src, size);
- }
+static __always_inline __must_check unsigned long
+copy_user_generic(void *to, const void *from, unsigned long len)
+{
+ stac();
+ /*
+ * If CPU has FSRM feature, use 'rep movs'.
+ * Otherwise, use rep_movs_alternative.
+ */
+ asm volatile(
+ "1:\n\t"
+ ALTERNATIVE("rep movsb",
+ "call rep_movs_alternative", ALT_NOT(X86_FEATURE_FSRM))
+ "2:\n"
+ _ASM_EXTABLE_UA(1b, 2b)
+ :"+c" (len), "+D" (to), "+S" (from), ASM_CALL_CONSTRAINT
+ : : "memory", "rax", "r8", "r9", "r10", "r11");
+ clac();
+ return len;
}
-__must_check long
-strncpy_from_user(char *dst, const char __user *src, long count);
-__must_check long
-__strncpy_from_user(char *dst, const char __user *src, long count);
-__must_check long strnlen_user(const char __user *str, long n);
-__must_check long __strnlen_user(const char __user *str, long n);
-__must_check long strlen_user(const char __user *str);
-__must_check unsigned long clear_user(void __user *mem, unsigned long len);
-__must_check unsigned long __clear_user(void __user *mem, unsigned long len);
-
-static __must_check __always_inline int
-__copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
+static __always_inline __must_check unsigned long
+raw_copy_from_user(void *dst, const void __user *src, unsigned long size)
{
- return copy_user_generic(dst, (__force const void *)src, size);
+ return copy_user_generic(dst, (__force void *)src, size);
}
-static __must_check __always_inline int
-__copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
+static __always_inline __must_check unsigned long
+raw_copy_to_user(void __user *dst, const void *src, unsigned long size)
{
return copy_user_generic((__force void *)dst, src, size);
}
-extern long __copy_user_nocache(void *dst, const void __user *src,
- unsigned size, int zerorest);
+extern long __copy_user_nocache(void *dst, const void __user *src, unsigned size);
+extern long __copy_user_flushcache(void *dst, const void __user *src, unsigned size);
static inline int
-__copy_from_user_nocache(void *dst, const void __user *src, unsigned size)
+__copy_from_user_inatomic_nocache(void *dst, const void __user *src,
+ unsigned size)
{
- might_sleep();
- return __copy_user_nocache(dst, src, size, 1);
+ long ret;
+ kasan_check_write(dst, size);
+ stac();
+ ret = __copy_user_nocache(dst, src, size);
+ clac();
+ return ret;
}
static inline int
-__copy_from_user_inatomic_nocache(void *dst, const void __user *src,
- unsigned size)
+__copy_from_user_flushcache(void *dst, const void __user *src, unsigned size)
{
- return __copy_user_nocache(dst, src, size, 0);
+ kasan_check_write(dst, size);
+ return __copy_user_flushcache(dst, src, size);
}
-unsigned long
-copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest);
+/*
+ * Zero Userspace.
+ */
+
+__must_check unsigned long
+rep_stos_alternative(void __user *addr, unsigned long len);
+static __always_inline __must_check unsigned long __clear_user(void __user *addr, unsigned long size)
+{
+ might_fault();
+ stac();
+
+ /*
+ * No memory constraint because it doesn't change any memory gcc
+ * knows about.
+ */
+ asm volatile(
+ "1:\n\t"
+ ALTERNATIVE("rep stosb",
+ "call rep_stos_alternative", ALT_NOT(X86_FEATURE_FSRS))
+ "2:\n"
+ _ASM_EXTABLE_UA(1b, 2b)
+ : "+c" (size), "+D" (addr), ASM_CALL_CONSTRAINT
+ : "a" (0));
+
+ clac();
+
+ return size;
+}
+
+static __always_inline unsigned long clear_user(void __user *to, unsigned long n)
+{
+ if (__access_ok(to, n))
+ return __clear_user(to, n);
+ return n;
+}
#endif /* _ASM_X86_UACCESS_64_H */
diff --git a/arch/x86/include/asm/ucontext.h b/arch/x86/include/asm/ucontext.h
deleted file mode 100644
index b7c29c8017f2..000000000000
--- a/arch/x86/include/asm/ucontext.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_X86_UCONTEXT_H
-#define _ASM_X86_UCONTEXT_H
-
-#define UC_FP_XSTATE 0x1 /* indicates the presence of extended state
- * information in the memory layout pointed
- * by the fpstate pointer in the ucontext's
- * sigcontext struct (uc_mcontext).
- */
-
-#include <asm-generic/ucontext.h>
-
-#endif /* _ASM_X86_UCONTEXT_H */
diff --git a/arch/x86/include/asm/umip.h b/arch/x86/include/asm/umip.h
new file mode 100644
index 000000000000..aeed98c3c9e1
--- /dev/null
+++ b/arch/x86/include/asm/umip.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_X86_UMIP_H
+#define _ASM_X86_UMIP_H
+
+#include <linux/types.h>
+#include <asm/ptrace.h>
+
+#ifdef CONFIG_X86_UMIP
+bool fixup_umip_exception(struct pt_regs *regs);
+#else
+static inline bool fixup_umip_exception(struct pt_regs *regs) { return false; }
+#endif /* CONFIG_X86_UMIP */
+#endif /* _ASM_X86_UMIP_H */
diff --git a/arch/x86/include/asm/unaligned.h b/arch/x86/include/asm/unaligned.h
deleted file mode 100644
index a7bd416b4763..000000000000
--- a/arch/x86/include/asm/unaligned.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef _ASM_X86_UNALIGNED_H
-#define _ASM_X86_UNALIGNED_H
-
-/*
- * The x86 can do unaligned accesses itself.
- */
-
-#include <linux/unaligned/access_ok.h>
-#include <linux/unaligned/generic.h>
-
-#define get_unaligned __get_unaligned_le
-#define put_unaligned __put_unaligned_le
-
-#endif /* _ASM_X86_UNALIGNED_H */
diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h
index 2a58ed3e51d8..761173ccc33c 100644
--- a/arch/x86/include/asm/unistd.h
+++ b/arch/x86/include/asm/unistd.h
@@ -1,13 +1,61 @@
-#ifdef __KERNEL__
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_UNISTD_H
+#define _ASM_X86_UNISTD_H 1
+
+#include <uapi/asm/unistd.h>
+
+
# ifdef CONFIG_X86_32
-# include "unistd_32.h"
+
+# include <asm/unistd_32.h>
+# define __ARCH_WANT_STAT64
+# define __ARCH_WANT_SYS_IPC
+# define __ARCH_WANT_SYS_OLD_MMAP
+# define __ARCH_WANT_SYS_OLD_SELECT
+
+# define IA32_NR_syscalls (__NR_syscalls)
+
# else
-# include "unistd_64.h"
+
+# include <asm/unistd_64.h>
+# include <asm/unistd_64_x32.h>
+# include <asm/unistd_32_ia32.h>
+# define __ARCH_WANT_SYS_TIME
+# define __ARCH_WANT_SYS_UTIME
+# define __ARCH_WANT_COMPAT_STAT
+# define __ARCH_WANT_COMPAT_SYS_PREADV64
+# define __ARCH_WANT_COMPAT_SYS_PWRITEV64
+# define __ARCH_WANT_COMPAT_SYS_PREADV64V2
+# define __ARCH_WANT_COMPAT_SYS_PWRITEV64V2
+# define X32_NR_syscalls (__NR_x32_syscalls)
+# define IA32_NR_syscalls (__NR_ia32_syscalls)
+
# endif
-#else
-# ifdef __i386__
-# include "unistd_32.h"
-# else
-# include "unistd_64.h"
-# endif
-#endif
+
+# define NR_syscalls (__NR_syscalls)
+
+# define __ARCH_WANT_NEW_STAT
+# define __ARCH_WANT_OLD_READDIR
+# define __ARCH_WANT_OLD_STAT
+# define __ARCH_WANT_SYS_ALARM
+# define __ARCH_WANT_SYS_FADVISE64
+# define __ARCH_WANT_SYS_GETHOSTNAME
+# define __ARCH_WANT_SYS_GETPGRP
+# define __ARCH_WANT_SYS_NICE
+# define __ARCH_WANT_SYS_OLDUMOUNT
+# define __ARCH_WANT_SYS_OLD_GETRLIMIT
+# define __ARCH_WANT_SYS_OLD_UNAME
+# define __ARCH_WANT_SYS_PAUSE
+# define __ARCH_WANT_SYS_SIGNAL
+# define __ARCH_WANT_SYS_SIGPENDING
+# define __ARCH_WANT_SYS_SIGPROCMASK
+# define __ARCH_WANT_SYS_SOCKETCALL
+# define __ARCH_WANT_SYS_TIME32
+# define __ARCH_WANT_SYS_UTIME32
+# define __ARCH_WANT_SYS_WAITPID
+# define __ARCH_WANT_SYS_FORK
+# define __ARCH_WANT_SYS_VFORK
+# define __ARCH_WANT_SYS_CLONE
+# define __ARCH_WANT_SYS_CLONE3
+
+#endif /* _ASM_X86_UNISTD_H */
diff --git a/arch/x86/include/asm/unistd_32.h b/arch/x86/include/asm/unistd_32.h
deleted file mode 100644
index a755ef5e5977..000000000000
--- a/arch/x86/include/asm/unistd_32.h
+++ /dev/null
@@ -1,397 +0,0 @@
-#ifndef _ASM_X86_UNISTD_32_H
-#define _ASM_X86_UNISTD_32_H
-
-/*
- * This file contains the system call numbers.
- */
-
-#define __NR_restart_syscall 0
-#define __NR_exit 1
-#define __NR_fork 2
-#define __NR_read 3
-#define __NR_write 4
-#define __NR_open 5
-#define __NR_close 6
-#define __NR_waitpid 7
-#define __NR_creat 8
-#define __NR_link 9
-#define __NR_unlink 10
-#define __NR_execve 11
-#define __NR_chdir 12
-#define __NR_time 13
-#define __NR_mknod 14
-#define __NR_chmod 15
-#define __NR_lchown 16
-#define __NR_break 17
-#define __NR_oldstat 18
-#define __NR_lseek 19
-#define __NR_getpid 20
-#define __NR_mount 21
-#define __NR_umount 22
-#define __NR_setuid 23
-#define __NR_getuid 24
-#define __NR_stime 25
-#define __NR_ptrace 26
-#define __NR_alarm 27
-#define __NR_oldfstat 28
-#define __NR_pause 29
-#define __NR_utime 30
-#define __NR_stty 31
-#define __NR_gtty 32
-#define __NR_access 33
-#define __NR_nice 34
-#define __NR_ftime 35
-#define __NR_sync 36
-#define __NR_kill 37
-#define __NR_rename 38
-#define __NR_mkdir 39
-#define __NR_rmdir 40
-#define __NR_dup 41
-#define __NR_pipe 42
-#define __NR_times 43
-#define __NR_prof 44
-#define __NR_brk 45
-#define __NR_setgid 46
-#define __NR_getgid 47
-#define __NR_signal 48
-#define __NR_geteuid 49
-#define __NR_getegid 50
-#define __NR_acct 51
-#define __NR_umount2 52
-#define __NR_lock 53
-#define __NR_ioctl 54
-#define __NR_fcntl 55
-#define __NR_mpx 56
-#define __NR_setpgid 57
-#define __NR_ulimit 58
-#define __NR_oldolduname 59
-#define __NR_umask 60
-#define __NR_chroot 61
-#define __NR_ustat 62
-#define __NR_dup2 63
-#define __NR_getppid 64
-#define __NR_getpgrp 65
-#define __NR_setsid 66
-#define __NR_sigaction 67
-#define __NR_sgetmask 68
-#define __NR_ssetmask 69
-#define __NR_setreuid 70
-#define __NR_setregid 71
-#define __NR_sigsuspend 72
-#define __NR_sigpending 73
-#define __NR_sethostname 74
-#define __NR_setrlimit 75
-#define __NR_getrlimit 76 /* Back compatible 2Gig limited rlimit */
-#define __NR_getrusage 77
-#define __NR_gettimeofday 78
-#define __NR_settimeofday 79
-#define __NR_getgroups 80
-#define __NR_setgroups 81
-#define __NR_select 82
-#define __NR_symlink 83
-#define __NR_oldlstat 84
-#define __NR_readlink 85
-#define __NR_uselib 86
-#define __NR_swapon 87
-#define __NR_reboot 88
-#define __NR_readdir 89
-#define __NR_mmap 90
-#define __NR_munmap 91
-#define __NR_truncate 92
-#define __NR_ftruncate 93
-#define __NR_fchmod 94
-#define __NR_fchown 95
-#define __NR_getpriority 96
-#define __NR_setpriority 97
-#define __NR_profil 98
-#define __NR_statfs 99
-#define __NR_fstatfs 100
-#define __NR_ioperm 101
-#define __NR_socketcall 102
-#define __NR_syslog 103
-#define __NR_setitimer 104
-#define __NR_getitimer 105
-#define __NR_stat 106
-#define __NR_lstat 107
-#define __NR_fstat 108
-#define __NR_olduname 109
-#define __NR_iopl 110
-#define __NR_vhangup 111
-#define __NR_idle 112
-#define __NR_vm86old 113
-#define __NR_wait4 114
-#define __NR_swapoff 115
-#define __NR_sysinfo 116
-#define __NR_ipc 117
-#define __NR_fsync 118
-#define __NR_sigreturn 119
-#define __NR_clone 120
-#define __NR_setdomainname 121
-#define __NR_uname 122
-#define __NR_modify_ldt 123
-#define __NR_adjtimex 124
-#define __NR_mprotect 125
-#define __NR_sigprocmask 126
-#define __NR_create_module 127
-#define __NR_init_module 128
-#define __NR_delete_module 129
-#define __NR_get_kernel_syms 130
-#define __NR_quotactl 131
-#define __NR_getpgid 132
-#define __NR_fchdir 133
-#define __NR_bdflush 134
-#define __NR_sysfs 135
-#define __NR_personality 136
-#define __NR_afs_syscall 137 /* Syscall for Andrew File System */
-#define __NR_setfsuid 138
-#define __NR_setfsgid 139
-#define __NR__llseek 140
-#define __NR_getdents 141
-#define __NR__newselect 142
-#define __NR_flock 143
-#define __NR_msync 144
-#define __NR_readv 145
-#define __NR_writev 146
-#define __NR_getsid 147
-#define __NR_fdatasync 148
-#define __NR__sysctl 149
-#define __NR_mlock 150
-#define __NR_munlock 151
-#define __NR_mlockall 152
-#define __NR_munlockall 153
-#define __NR_sched_setparam 154
-#define __NR_sched_getparam 155
-#define __NR_sched_setscheduler 156
-#define __NR_sched_getscheduler 157
-#define __NR_sched_yield 158
-#define __NR_sched_get_priority_max 159
-#define __NR_sched_get_priority_min 160
-#define __NR_sched_rr_get_interval 161
-#define __NR_nanosleep 162
-#define __NR_mremap 163
-#define __NR_setresuid 164
-#define __NR_getresuid 165
-#define __NR_vm86 166
-#define __NR_query_module 167
-#define __NR_poll 168
-#define __NR_nfsservctl 169
-#define __NR_setresgid 170
-#define __NR_getresgid 171
-#define __NR_prctl 172
-#define __NR_rt_sigreturn 173
-#define __NR_rt_sigaction 174
-#define __NR_rt_sigprocmask 175
-#define __NR_rt_sigpending 176
-#define __NR_rt_sigtimedwait 177
-#define __NR_rt_sigqueueinfo 178
-#define __NR_rt_sigsuspend 179
-#define __NR_pread64 180
-#define __NR_pwrite64 181
-#define __NR_chown 182
-#define __NR_getcwd 183
-#define __NR_capget 184
-#define __NR_capset 185
-#define __NR_sigaltstack 186
-#define __NR_sendfile 187
-#define __NR_getpmsg 188 /* some people actually want streams */
-#define __NR_putpmsg 189 /* some people actually want streams */
-#define __NR_vfork 190
-#define __NR_ugetrlimit 191 /* SuS compliant getrlimit */
-#define __NR_mmap2 192
-#define __NR_truncate64 193
-#define __NR_ftruncate64 194
-#define __NR_stat64 195
-#define __NR_lstat64 196
-#define __NR_fstat64 197
-#define __NR_lchown32 198
-#define __NR_getuid32 199
-#define __NR_getgid32 200
-#define __NR_geteuid32 201
-#define __NR_getegid32 202
-#define __NR_setreuid32 203
-#define __NR_setregid32 204
-#define __NR_getgroups32 205
-#define __NR_setgroups32 206
-#define __NR_fchown32 207
-#define __NR_setresuid32 208
-#define __NR_getresuid32 209
-#define __NR_setresgid32 210
-#define __NR_getresgid32 211
-#define __NR_chown32 212
-#define __NR_setuid32 213
-#define __NR_setgid32 214
-#define __NR_setfsuid32 215
-#define __NR_setfsgid32 216
-#define __NR_pivot_root 217
-#define __NR_mincore 218
-#define __NR_madvise 219
-#define __NR_madvise1 219 /* delete when C lib stub is removed */
-#define __NR_getdents64 220
-#define __NR_fcntl64 221
-/* 223 is unused */
-#define __NR_gettid 224
-#define __NR_readahead 225
-#define __NR_setxattr 226
-#define __NR_lsetxattr 227
-#define __NR_fsetxattr 228
-#define __NR_getxattr 229
-#define __NR_lgetxattr 230
-#define __NR_fgetxattr 231
-#define __NR_listxattr 232
-#define __NR_llistxattr 233
-#define __NR_flistxattr 234
-#define __NR_removexattr 235
-#define __NR_lremovexattr 236
-#define __NR_fremovexattr 237
-#define __NR_tkill 238
-#define __NR_sendfile64 239
-#define __NR_futex 240
-#define __NR_sched_setaffinity 241
-#define __NR_sched_getaffinity 242
-#define __NR_set_thread_area 243
-#define __NR_get_thread_area 244
-#define __NR_io_setup 245
-#define __NR_io_destroy 246
-#define __NR_io_getevents 247
-#define __NR_io_submit 248
-#define __NR_io_cancel 249
-#define __NR_fadvise64 250
-/* 251 is available for reuse (was briefly sys_set_zone_reclaim) */
-#define __NR_exit_group 252
-#define __NR_lookup_dcookie 253
-#define __NR_epoll_create 254
-#define __NR_epoll_ctl 255
-#define __NR_epoll_wait 256
-#define __NR_remap_file_pages 257
-#define __NR_set_tid_address 258
-#define __NR_timer_create 259
-#define __NR_timer_settime (__NR_timer_create+1)
-#define __NR_timer_gettime (__NR_timer_create+2)
-#define __NR_timer_getoverrun (__NR_timer_create+3)
-#define __NR_timer_delete (__NR_timer_create+4)
-#define __NR_clock_settime (__NR_timer_create+5)
-#define __NR_clock_gettime (__NR_timer_create+6)
-#define __NR_clock_getres (__NR_timer_create+7)
-#define __NR_clock_nanosleep (__NR_timer_create+8)
-#define __NR_statfs64 268
-#define __NR_fstatfs64 269
-#define __NR_tgkill 270
-#define __NR_utimes 271
-#define __NR_fadvise64_64 272
-#define __NR_vserver 273
-#define __NR_mbind 274
-#define __NR_get_mempolicy 275
-#define __NR_set_mempolicy 276
-#define __NR_mq_open 277
-#define __NR_mq_unlink (__NR_mq_open+1)
-#define __NR_mq_timedsend (__NR_mq_open+2)
-#define __NR_mq_timedreceive (__NR_mq_open+3)
-#define __NR_mq_notify (__NR_mq_open+4)
-#define __NR_mq_getsetattr (__NR_mq_open+5)
-#define __NR_kexec_load 283
-#define __NR_waitid 284
-/* #define __NR_sys_setaltroot 285 */
-#define __NR_add_key 286
-#define __NR_request_key 287
-#define __NR_keyctl 288
-#define __NR_ioprio_set 289
-#define __NR_ioprio_get 290
-#define __NR_inotify_init 291
-#define __NR_inotify_add_watch 292
-#define __NR_inotify_rm_watch 293
-#define __NR_migrate_pages 294
-#define __NR_openat 295
-#define __NR_mkdirat 296
-#define __NR_mknodat 297
-#define __NR_fchownat 298
-#define __NR_futimesat 299
-#define __NR_fstatat64 300
-#define __NR_unlinkat 301
-#define __NR_renameat 302
-#define __NR_linkat 303
-#define __NR_symlinkat 304
-#define __NR_readlinkat 305
-#define __NR_fchmodat 306
-#define __NR_faccessat 307
-#define __NR_pselect6 308
-#define __NR_ppoll 309
-#define __NR_unshare 310
-#define __NR_set_robust_list 311
-#define __NR_get_robust_list 312
-#define __NR_splice 313
-#define __NR_sync_file_range 314
-#define __NR_tee 315
-#define __NR_vmsplice 316
-#define __NR_move_pages 317
-#define __NR_getcpu 318
-#define __NR_epoll_pwait 319
-#define __NR_utimensat 320
-#define __NR_signalfd 321
-#define __NR_timerfd_create 322
-#define __NR_eventfd 323
-#define __NR_fallocate 324
-#define __NR_timerfd_settime 325
-#define __NR_timerfd_gettime 326
-#define __NR_signalfd4 327
-#define __NR_eventfd2 328
-#define __NR_epoll_create1 329
-#define __NR_dup3 330
-#define __NR_pipe2 331
-#define __NR_inotify_init1 332
-#define __NR_preadv 333
-#define __NR_pwritev 334
-#define __NR_rt_tgsigqueueinfo 335
-#define __NR_perf_event_open 336
-#define __NR_recvmmsg 337
-#define __NR_fanotify_init 338
-#define __NR_fanotify_mark 339
-#define __NR_prlimit64 340
-#define __NR_name_to_handle_at 341
-#define __NR_open_by_handle_at 342
-#define __NR_clock_adjtime 343
-#define __NR_syncfs 344
-
-#ifdef __KERNEL__
-
-#define NR_syscalls 345
-
-#define __ARCH_WANT_IPC_PARSE_VERSION
-#define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_OLD_STAT
-#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYS_ALARM
-#define __ARCH_WANT_SYS_GETHOSTNAME
-#define __ARCH_WANT_SYS_IPC
-#define __ARCH_WANT_SYS_PAUSE
-#define __ARCH_WANT_SYS_SGETMASK
-#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_SYS_UTIME
-#define __ARCH_WANT_SYS_WAITPID
-#define __ARCH_WANT_SYS_SOCKETCALL
-#define __ARCH_WANT_SYS_FADVISE64
-#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
-#define __ARCH_WANT_SYS_OLD_UNAME
-#define __ARCH_WANT_SYS_OLD_MMAP
-#define __ARCH_WANT_SYS_OLD_SELECT
-#define __ARCH_WANT_SYS_OLDUMOUNT
-#define __ARCH_WANT_SYS_SIGPENDING
-#define __ARCH_WANT_SYS_SIGPROCMASK
-#define __ARCH_WANT_SYS_RT_SIGACTION
-#define __ARCH_WANT_SYS_RT_SIGSUSPEND
-
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#ifndef cond_syscall
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-#endif
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_X86_UNISTD_32_H */
diff --git a/arch/x86/include/asm/unistd_64.h b/arch/x86/include/asm/unistd_64.h
deleted file mode 100644
index 160fa76bd578..000000000000
--- a/arch/x86/include/asm/unistd_64.h
+++ /dev/null
@@ -1,723 +0,0 @@
-#ifndef _ASM_X86_UNISTD_64_H
-#define _ASM_X86_UNISTD_64_H
-
-#ifndef __SYSCALL
-#define __SYSCALL(a, b)
-#endif
-
-/*
- * This file contains the system call numbers.
- *
- * Note: holes are not allowed.
- */
-
-/* at least 8 syscall per cacheline */
-#define __NR_read 0
-__SYSCALL(__NR_read, sys_read)
-#define __NR_write 1
-__SYSCALL(__NR_write, sys_write)
-#define __NR_open 2
-__SYSCALL(__NR_open, sys_open)
-#define __NR_close 3
-__SYSCALL(__NR_close, sys_close)
-#define __NR_stat 4
-__SYSCALL(__NR_stat, sys_newstat)
-#define __NR_fstat 5
-__SYSCALL(__NR_fstat, sys_newfstat)
-#define __NR_lstat 6
-__SYSCALL(__NR_lstat, sys_newlstat)
-#define __NR_poll 7
-__SYSCALL(__NR_poll, sys_poll)
-
-#define __NR_lseek 8
-__SYSCALL(__NR_lseek, sys_lseek)
-#define __NR_mmap 9
-__SYSCALL(__NR_mmap, sys_mmap)
-#define __NR_mprotect 10
-__SYSCALL(__NR_mprotect, sys_mprotect)
-#define __NR_munmap 11
-__SYSCALL(__NR_munmap, sys_munmap)
-#define __NR_brk 12
-__SYSCALL(__NR_brk, sys_brk)
-#define __NR_rt_sigaction 13
-__SYSCALL(__NR_rt_sigaction, sys_rt_sigaction)
-#define __NR_rt_sigprocmask 14
-__SYSCALL(__NR_rt_sigprocmask, sys_rt_sigprocmask)
-#define __NR_rt_sigreturn 15
-__SYSCALL(__NR_rt_sigreturn, stub_rt_sigreturn)
-
-#define __NR_ioctl 16
-__SYSCALL(__NR_ioctl, sys_ioctl)
-#define __NR_pread64 17
-__SYSCALL(__NR_pread64, sys_pread64)
-#define __NR_pwrite64 18
-__SYSCALL(__NR_pwrite64, sys_pwrite64)
-#define __NR_readv 19
-__SYSCALL(__NR_readv, sys_readv)
-#define __NR_writev 20
-__SYSCALL(__NR_writev, sys_writev)
-#define __NR_access 21
-__SYSCALL(__NR_access, sys_access)
-#define __NR_pipe 22
-__SYSCALL(__NR_pipe, sys_pipe)
-#define __NR_select 23
-__SYSCALL(__NR_select, sys_select)
-
-#define __NR_sched_yield 24
-__SYSCALL(__NR_sched_yield, sys_sched_yield)
-#define __NR_mremap 25
-__SYSCALL(__NR_mremap, sys_mremap)
-#define __NR_msync 26
-__SYSCALL(__NR_msync, sys_msync)
-#define __NR_mincore 27
-__SYSCALL(__NR_mincore, sys_mincore)
-#define __NR_madvise 28
-__SYSCALL(__NR_madvise, sys_madvise)
-#define __NR_shmget 29
-__SYSCALL(__NR_shmget, sys_shmget)
-#define __NR_shmat 30
-__SYSCALL(__NR_shmat, sys_shmat)
-#define __NR_shmctl 31
-__SYSCALL(__NR_shmctl, sys_shmctl)
-
-#define __NR_dup 32
-__SYSCALL(__NR_dup, sys_dup)
-#define __NR_dup2 33
-__SYSCALL(__NR_dup2, sys_dup2)
-#define __NR_pause 34
-__SYSCALL(__NR_pause, sys_pause)
-#define __NR_nanosleep 35
-__SYSCALL(__NR_nanosleep, sys_nanosleep)
-#define __NR_getitimer 36
-__SYSCALL(__NR_getitimer, sys_getitimer)
-#define __NR_alarm 37
-__SYSCALL(__NR_alarm, sys_alarm)
-#define __NR_setitimer 38
-__SYSCALL(__NR_setitimer, sys_setitimer)
-#define __NR_getpid 39
-__SYSCALL(__NR_getpid, sys_getpid)
-
-#define __NR_sendfile 40
-__SYSCALL(__NR_sendfile, sys_sendfile64)
-#define __NR_socket 41
-__SYSCALL(__NR_socket, sys_socket)
-#define __NR_connect 42
-__SYSCALL(__NR_connect, sys_connect)
-#define __NR_accept 43
-__SYSCALL(__NR_accept, sys_accept)
-#define __NR_sendto 44
-__SYSCALL(__NR_sendto, sys_sendto)
-#define __NR_recvfrom 45
-__SYSCALL(__NR_recvfrom, sys_recvfrom)
-#define __NR_sendmsg 46
-__SYSCALL(__NR_sendmsg, sys_sendmsg)
-#define __NR_recvmsg 47
-__SYSCALL(__NR_recvmsg, sys_recvmsg)
-
-#define __NR_shutdown 48
-__SYSCALL(__NR_shutdown, sys_shutdown)
-#define __NR_bind 49
-__SYSCALL(__NR_bind, sys_bind)
-#define __NR_listen 50
-__SYSCALL(__NR_listen, sys_listen)
-#define __NR_getsockname 51
-__SYSCALL(__NR_getsockname, sys_getsockname)
-#define __NR_getpeername 52
-__SYSCALL(__NR_getpeername, sys_getpeername)
-#define __NR_socketpair 53
-__SYSCALL(__NR_socketpair, sys_socketpair)
-#define __NR_setsockopt 54
-__SYSCALL(__NR_setsockopt, sys_setsockopt)
-#define __NR_getsockopt 55
-__SYSCALL(__NR_getsockopt, sys_getsockopt)
-
-#define __NR_clone 56
-__SYSCALL(__NR_clone, stub_clone)
-#define __NR_fork 57
-__SYSCALL(__NR_fork, stub_fork)
-#define __NR_vfork 58
-__SYSCALL(__NR_vfork, stub_vfork)
-#define __NR_execve 59
-__SYSCALL(__NR_execve, stub_execve)
-#define __NR_exit 60
-__SYSCALL(__NR_exit, sys_exit)
-#define __NR_wait4 61
-__SYSCALL(__NR_wait4, sys_wait4)
-#define __NR_kill 62
-__SYSCALL(__NR_kill, sys_kill)
-#define __NR_uname 63
-__SYSCALL(__NR_uname, sys_newuname)
-
-#define __NR_semget 64
-__SYSCALL(__NR_semget, sys_semget)
-#define __NR_semop 65
-__SYSCALL(__NR_semop, sys_semop)
-#define __NR_semctl 66
-__SYSCALL(__NR_semctl, sys_semctl)
-#define __NR_shmdt 67
-__SYSCALL(__NR_shmdt, sys_shmdt)
-#define __NR_msgget 68
-__SYSCALL(__NR_msgget, sys_msgget)
-#define __NR_msgsnd 69
-__SYSCALL(__NR_msgsnd, sys_msgsnd)
-#define __NR_msgrcv 70
-__SYSCALL(__NR_msgrcv, sys_msgrcv)
-#define __NR_msgctl 71
-__SYSCALL(__NR_msgctl, sys_msgctl)
-
-#define __NR_fcntl 72
-__SYSCALL(__NR_fcntl, sys_fcntl)
-#define __NR_flock 73
-__SYSCALL(__NR_flock, sys_flock)
-#define __NR_fsync 74
-__SYSCALL(__NR_fsync, sys_fsync)
-#define __NR_fdatasync 75
-__SYSCALL(__NR_fdatasync, sys_fdatasync)
-#define __NR_truncate 76
-__SYSCALL(__NR_truncate, sys_truncate)
-#define __NR_ftruncate 77
-__SYSCALL(__NR_ftruncate, sys_ftruncate)
-#define __NR_getdents 78
-__SYSCALL(__NR_getdents, sys_getdents)
-#define __NR_getcwd 79
-__SYSCALL(__NR_getcwd, sys_getcwd)
-
-#define __NR_chdir 80
-__SYSCALL(__NR_chdir, sys_chdir)
-#define __NR_fchdir 81
-__SYSCALL(__NR_fchdir, sys_fchdir)
-#define __NR_rename 82
-__SYSCALL(__NR_rename, sys_rename)
-#define __NR_mkdir 83
-__SYSCALL(__NR_mkdir, sys_mkdir)
-#define __NR_rmdir 84
-__SYSCALL(__NR_rmdir, sys_rmdir)
-#define __NR_creat 85
-__SYSCALL(__NR_creat, sys_creat)
-#define __NR_link 86
-__SYSCALL(__NR_link, sys_link)
-#define __NR_unlink 87
-__SYSCALL(__NR_unlink, sys_unlink)
-
-#define __NR_symlink 88
-__SYSCALL(__NR_symlink, sys_symlink)
-#define __NR_readlink 89
-__SYSCALL(__NR_readlink, sys_readlink)
-#define __NR_chmod 90
-__SYSCALL(__NR_chmod, sys_chmod)
-#define __NR_fchmod 91
-__SYSCALL(__NR_fchmod, sys_fchmod)
-#define __NR_chown 92
-__SYSCALL(__NR_chown, sys_chown)
-#define __NR_fchown 93
-__SYSCALL(__NR_fchown, sys_fchown)
-#define __NR_lchown 94
-__SYSCALL(__NR_lchown, sys_lchown)
-#define __NR_umask 95
-__SYSCALL(__NR_umask, sys_umask)
-
-#define __NR_gettimeofday 96
-__SYSCALL(__NR_gettimeofday, sys_gettimeofday)
-#define __NR_getrlimit 97
-__SYSCALL(__NR_getrlimit, sys_getrlimit)
-#define __NR_getrusage 98
-__SYSCALL(__NR_getrusage, sys_getrusage)
-#define __NR_sysinfo 99
-__SYSCALL(__NR_sysinfo, sys_sysinfo)
-#define __NR_times 100
-__SYSCALL(__NR_times, sys_times)
-#define __NR_ptrace 101
-__SYSCALL(__NR_ptrace, sys_ptrace)
-#define __NR_getuid 102
-__SYSCALL(__NR_getuid, sys_getuid)
-#define __NR_syslog 103
-__SYSCALL(__NR_syslog, sys_syslog)
-
-/* at the very end the stuff that never runs during the benchmarks */
-#define __NR_getgid 104
-__SYSCALL(__NR_getgid, sys_getgid)
-#define __NR_setuid 105
-__SYSCALL(__NR_setuid, sys_setuid)
-#define __NR_setgid 106
-__SYSCALL(__NR_setgid, sys_setgid)
-#define __NR_geteuid 107
-__SYSCALL(__NR_geteuid, sys_geteuid)
-#define __NR_getegid 108
-__SYSCALL(__NR_getegid, sys_getegid)
-#define __NR_setpgid 109
-__SYSCALL(__NR_setpgid, sys_setpgid)
-#define __NR_getppid 110
-__SYSCALL(__NR_getppid, sys_getppid)
-#define __NR_getpgrp 111
-__SYSCALL(__NR_getpgrp, sys_getpgrp)
-
-#define __NR_setsid 112
-__SYSCALL(__NR_setsid, sys_setsid)
-#define __NR_setreuid 113
-__SYSCALL(__NR_setreuid, sys_setreuid)
-#define __NR_setregid 114
-__SYSCALL(__NR_setregid, sys_setregid)
-#define __NR_getgroups 115
-__SYSCALL(__NR_getgroups, sys_getgroups)
-#define __NR_setgroups 116
-__SYSCALL(__NR_setgroups, sys_setgroups)
-#define __NR_setresuid 117
-__SYSCALL(__NR_setresuid, sys_setresuid)
-#define __NR_getresuid 118
-__SYSCALL(__NR_getresuid, sys_getresuid)
-#define __NR_setresgid 119
-__SYSCALL(__NR_setresgid, sys_setresgid)
-
-#define __NR_getresgid 120
-__SYSCALL(__NR_getresgid, sys_getresgid)
-#define __NR_getpgid 121
-__SYSCALL(__NR_getpgid, sys_getpgid)
-#define __NR_setfsuid 122
-__SYSCALL(__NR_setfsuid, sys_setfsuid)
-#define __NR_setfsgid 123
-__SYSCALL(__NR_setfsgid, sys_setfsgid)
-#define __NR_getsid 124
-__SYSCALL(__NR_getsid, sys_getsid)
-#define __NR_capget 125
-__SYSCALL(__NR_capget, sys_capget)
-#define __NR_capset 126
-__SYSCALL(__NR_capset, sys_capset)
-
-#define __NR_rt_sigpending 127
-__SYSCALL(__NR_rt_sigpending, sys_rt_sigpending)
-#define __NR_rt_sigtimedwait 128
-__SYSCALL(__NR_rt_sigtimedwait, sys_rt_sigtimedwait)
-#define __NR_rt_sigqueueinfo 129
-__SYSCALL(__NR_rt_sigqueueinfo, sys_rt_sigqueueinfo)
-#define __NR_rt_sigsuspend 130
-__SYSCALL(__NR_rt_sigsuspend, sys_rt_sigsuspend)
-#define __NR_sigaltstack 131
-__SYSCALL(__NR_sigaltstack, stub_sigaltstack)
-#define __NR_utime 132
-__SYSCALL(__NR_utime, sys_utime)
-#define __NR_mknod 133
-__SYSCALL(__NR_mknod, sys_mknod)
-
-/* Only needed for a.out */
-#define __NR_uselib 134
-__SYSCALL(__NR_uselib, sys_ni_syscall)
-#define __NR_personality 135
-__SYSCALL(__NR_personality, sys_personality)
-
-#define __NR_ustat 136
-__SYSCALL(__NR_ustat, sys_ustat)
-#define __NR_statfs 137
-__SYSCALL(__NR_statfs, sys_statfs)
-#define __NR_fstatfs 138
-__SYSCALL(__NR_fstatfs, sys_fstatfs)
-#define __NR_sysfs 139
-__SYSCALL(__NR_sysfs, sys_sysfs)
-
-#define __NR_getpriority 140
-__SYSCALL(__NR_getpriority, sys_getpriority)
-#define __NR_setpriority 141
-__SYSCALL(__NR_setpriority, sys_setpriority)
-#define __NR_sched_setparam 142
-__SYSCALL(__NR_sched_setparam, sys_sched_setparam)
-#define __NR_sched_getparam 143
-__SYSCALL(__NR_sched_getparam, sys_sched_getparam)
-#define __NR_sched_setscheduler 144
-__SYSCALL(__NR_sched_setscheduler, sys_sched_setscheduler)
-#define __NR_sched_getscheduler 145
-__SYSCALL(__NR_sched_getscheduler, sys_sched_getscheduler)
-#define __NR_sched_get_priority_max 146
-__SYSCALL(__NR_sched_get_priority_max, sys_sched_get_priority_max)
-#define __NR_sched_get_priority_min 147
-__SYSCALL(__NR_sched_get_priority_min, sys_sched_get_priority_min)
-#define __NR_sched_rr_get_interval 148
-__SYSCALL(__NR_sched_rr_get_interval, sys_sched_rr_get_interval)
-
-#define __NR_mlock 149
-__SYSCALL(__NR_mlock, sys_mlock)
-#define __NR_munlock 150
-__SYSCALL(__NR_munlock, sys_munlock)
-#define __NR_mlockall 151
-__SYSCALL(__NR_mlockall, sys_mlockall)
-#define __NR_munlockall 152
-__SYSCALL(__NR_munlockall, sys_munlockall)
-
-#define __NR_vhangup 153
-__SYSCALL(__NR_vhangup, sys_vhangup)
-
-#define __NR_modify_ldt 154
-__SYSCALL(__NR_modify_ldt, sys_modify_ldt)
-
-#define __NR_pivot_root 155
-__SYSCALL(__NR_pivot_root, sys_pivot_root)
-
-#define __NR__sysctl 156
-__SYSCALL(__NR__sysctl, sys_sysctl)
-
-#define __NR_prctl 157
-__SYSCALL(__NR_prctl, sys_prctl)
-#define __NR_arch_prctl 158
-__SYSCALL(__NR_arch_prctl, sys_arch_prctl)
-
-#define __NR_adjtimex 159
-__SYSCALL(__NR_adjtimex, sys_adjtimex)
-
-#define __NR_setrlimit 160
-__SYSCALL(__NR_setrlimit, sys_setrlimit)
-
-#define __NR_chroot 161
-__SYSCALL(__NR_chroot, sys_chroot)
-
-#define __NR_sync 162
-__SYSCALL(__NR_sync, sys_sync)
-
-#define __NR_acct 163
-__SYSCALL(__NR_acct, sys_acct)
-
-#define __NR_settimeofday 164
-__SYSCALL(__NR_settimeofday, sys_settimeofday)
-
-#define __NR_mount 165
-__SYSCALL(__NR_mount, sys_mount)
-#define __NR_umount2 166
-__SYSCALL(__NR_umount2, sys_umount)
-
-#define __NR_swapon 167
-__SYSCALL(__NR_swapon, sys_swapon)
-#define __NR_swapoff 168
-__SYSCALL(__NR_swapoff, sys_swapoff)
-
-#define __NR_reboot 169
-__SYSCALL(__NR_reboot, sys_reboot)
-
-#define __NR_sethostname 170
-__SYSCALL(__NR_sethostname, sys_sethostname)
-#define __NR_setdomainname 171
-__SYSCALL(__NR_setdomainname, sys_setdomainname)
-
-#define __NR_iopl 172
-__SYSCALL(__NR_iopl, stub_iopl)
-#define __NR_ioperm 173
-__SYSCALL(__NR_ioperm, sys_ioperm)
-
-#define __NR_create_module 174
-__SYSCALL(__NR_create_module, sys_ni_syscall)
-#define __NR_init_module 175
-__SYSCALL(__NR_init_module, sys_init_module)
-#define __NR_delete_module 176
-__SYSCALL(__NR_delete_module, sys_delete_module)
-#define __NR_get_kernel_syms 177
-__SYSCALL(__NR_get_kernel_syms, sys_ni_syscall)
-#define __NR_query_module 178
-__SYSCALL(__NR_query_module, sys_ni_syscall)
-
-#define __NR_quotactl 179
-__SYSCALL(__NR_quotactl, sys_quotactl)
-
-#define __NR_nfsservctl 180
-__SYSCALL(__NR_nfsservctl, sys_nfsservctl)
-
-/* reserved for LiS/STREAMS */
-#define __NR_getpmsg 181
-__SYSCALL(__NR_getpmsg, sys_ni_syscall)
-#define __NR_putpmsg 182
-__SYSCALL(__NR_putpmsg, sys_ni_syscall)
-
-/* reserved for AFS */
-#define __NR_afs_syscall 183
-__SYSCALL(__NR_afs_syscall, sys_ni_syscall)
-
-/* reserved for tux */
-#define __NR_tuxcall 184
-__SYSCALL(__NR_tuxcall, sys_ni_syscall)
-
-#define __NR_security 185
-__SYSCALL(__NR_security, sys_ni_syscall)
-
-#define __NR_gettid 186
-__SYSCALL(__NR_gettid, sys_gettid)
-
-#define __NR_readahead 187
-__SYSCALL(__NR_readahead, sys_readahead)
-#define __NR_setxattr 188
-__SYSCALL(__NR_setxattr, sys_setxattr)
-#define __NR_lsetxattr 189
-__SYSCALL(__NR_lsetxattr, sys_lsetxattr)
-#define __NR_fsetxattr 190
-__SYSCALL(__NR_fsetxattr, sys_fsetxattr)
-#define __NR_getxattr 191
-__SYSCALL(__NR_getxattr, sys_getxattr)
-#define __NR_lgetxattr 192
-__SYSCALL(__NR_lgetxattr, sys_lgetxattr)
-#define __NR_fgetxattr 193
-__SYSCALL(__NR_fgetxattr, sys_fgetxattr)
-#define __NR_listxattr 194
-__SYSCALL(__NR_listxattr, sys_listxattr)
-#define __NR_llistxattr 195
-__SYSCALL(__NR_llistxattr, sys_llistxattr)
-#define __NR_flistxattr 196
-__SYSCALL(__NR_flistxattr, sys_flistxattr)
-#define __NR_removexattr 197
-__SYSCALL(__NR_removexattr, sys_removexattr)
-#define __NR_lremovexattr 198
-__SYSCALL(__NR_lremovexattr, sys_lremovexattr)
-#define __NR_fremovexattr 199
-__SYSCALL(__NR_fremovexattr, sys_fremovexattr)
-#define __NR_tkill 200
-__SYSCALL(__NR_tkill, sys_tkill)
-#define __NR_time 201
-__SYSCALL(__NR_time, sys_time)
-#define __NR_futex 202
-__SYSCALL(__NR_futex, sys_futex)
-#define __NR_sched_setaffinity 203
-__SYSCALL(__NR_sched_setaffinity, sys_sched_setaffinity)
-#define __NR_sched_getaffinity 204
-__SYSCALL(__NR_sched_getaffinity, sys_sched_getaffinity)
-#define __NR_set_thread_area 205
-__SYSCALL(__NR_set_thread_area, sys_ni_syscall) /* use arch_prctl */
-#define __NR_io_setup 206
-__SYSCALL(__NR_io_setup, sys_io_setup)
-#define __NR_io_destroy 207
-__SYSCALL(__NR_io_destroy, sys_io_destroy)
-#define __NR_io_getevents 208
-__SYSCALL(__NR_io_getevents, sys_io_getevents)
-#define __NR_io_submit 209
-__SYSCALL(__NR_io_submit, sys_io_submit)
-#define __NR_io_cancel 210
-__SYSCALL(__NR_io_cancel, sys_io_cancel)
-#define __NR_get_thread_area 211
-__SYSCALL(__NR_get_thread_area, sys_ni_syscall) /* use arch_prctl */
-#define __NR_lookup_dcookie 212
-__SYSCALL(__NR_lookup_dcookie, sys_lookup_dcookie)
-#define __NR_epoll_create 213
-__SYSCALL(__NR_epoll_create, sys_epoll_create)
-#define __NR_epoll_ctl_old 214
-__SYSCALL(__NR_epoll_ctl_old, sys_ni_syscall)
-#define __NR_epoll_wait_old 215
-__SYSCALL(__NR_epoll_wait_old, sys_ni_syscall)
-#define __NR_remap_file_pages 216
-__SYSCALL(__NR_remap_file_pages, sys_remap_file_pages)
-#define __NR_getdents64 217
-__SYSCALL(__NR_getdents64, sys_getdents64)
-#define __NR_set_tid_address 218
-__SYSCALL(__NR_set_tid_address, sys_set_tid_address)
-#define __NR_restart_syscall 219
-__SYSCALL(__NR_restart_syscall, sys_restart_syscall)
-#define __NR_semtimedop 220
-__SYSCALL(__NR_semtimedop, sys_semtimedop)
-#define __NR_fadvise64 221
-__SYSCALL(__NR_fadvise64, sys_fadvise64)
-#define __NR_timer_create 222
-__SYSCALL(__NR_timer_create, sys_timer_create)
-#define __NR_timer_settime 223
-__SYSCALL(__NR_timer_settime, sys_timer_settime)
-#define __NR_timer_gettime 224
-__SYSCALL(__NR_timer_gettime, sys_timer_gettime)
-#define __NR_timer_getoverrun 225
-__SYSCALL(__NR_timer_getoverrun, sys_timer_getoverrun)
-#define __NR_timer_delete 226
-__SYSCALL(__NR_timer_delete, sys_timer_delete)
-#define __NR_clock_settime 227
-__SYSCALL(__NR_clock_settime, sys_clock_settime)
-#define __NR_clock_gettime 228
-__SYSCALL(__NR_clock_gettime, sys_clock_gettime)
-#define __NR_clock_getres 229
-__SYSCALL(__NR_clock_getres, sys_clock_getres)
-#define __NR_clock_nanosleep 230
-__SYSCALL(__NR_clock_nanosleep, sys_clock_nanosleep)
-#define __NR_exit_group 231
-__SYSCALL(__NR_exit_group, sys_exit_group)
-#define __NR_epoll_wait 232
-__SYSCALL(__NR_epoll_wait, sys_epoll_wait)
-#define __NR_epoll_ctl 233
-__SYSCALL(__NR_epoll_ctl, sys_epoll_ctl)
-#define __NR_tgkill 234
-__SYSCALL(__NR_tgkill, sys_tgkill)
-#define __NR_utimes 235
-__SYSCALL(__NR_utimes, sys_utimes)
-#define __NR_vserver 236
-__SYSCALL(__NR_vserver, sys_ni_syscall)
-#define __NR_mbind 237
-__SYSCALL(__NR_mbind, sys_mbind)
-#define __NR_set_mempolicy 238
-__SYSCALL(__NR_set_mempolicy, sys_set_mempolicy)
-#define __NR_get_mempolicy 239
-__SYSCALL(__NR_get_mempolicy, sys_get_mempolicy)
-#define __NR_mq_open 240
-__SYSCALL(__NR_mq_open, sys_mq_open)
-#define __NR_mq_unlink 241
-__SYSCALL(__NR_mq_unlink, sys_mq_unlink)
-#define __NR_mq_timedsend 242
-__SYSCALL(__NR_mq_timedsend, sys_mq_timedsend)
-#define __NR_mq_timedreceive 243
-__SYSCALL(__NR_mq_timedreceive, sys_mq_timedreceive)
-#define __NR_mq_notify 244
-__SYSCALL(__NR_mq_notify, sys_mq_notify)
-#define __NR_mq_getsetattr 245
-__SYSCALL(__NR_mq_getsetattr, sys_mq_getsetattr)
-#define __NR_kexec_load 246
-__SYSCALL(__NR_kexec_load, sys_kexec_load)
-#define __NR_waitid 247
-__SYSCALL(__NR_waitid, sys_waitid)
-#define __NR_add_key 248
-__SYSCALL(__NR_add_key, sys_add_key)
-#define __NR_request_key 249
-__SYSCALL(__NR_request_key, sys_request_key)
-#define __NR_keyctl 250
-__SYSCALL(__NR_keyctl, sys_keyctl)
-#define __NR_ioprio_set 251
-__SYSCALL(__NR_ioprio_set, sys_ioprio_set)
-#define __NR_ioprio_get 252
-__SYSCALL(__NR_ioprio_get, sys_ioprio_get)
-#define __NR_inotify_init 253
-__SYSCALL(__NR_inotify_init, sys_inotify_init)
-#define __NR_inotify_add_watch 254
-__SYSCALL(__NR_inotify_add_watch, sys_inotify_add_watch)
-#define __NR_inotify_rm_watch 255
-__SYSCALL(__NR_inotify_rm_watch, sys_inotify_rm_watch)
-#define __NR_migrate_pages 256
-__SYSCALL(__NR_migrate_pages, sys_migrate_pages)
-#define __NR_openat 257
-__SYSCALL(__NR_openat, sys_openat)
-#define __NR_mkdirat 258
-__SYSCALL(__NR_mkdirat, sys_mkdirat)
-#define __NR_mknodat 259
-__SYSCALL(__NR_mknodat, sys_mknodat)
-#define __NR_fchownat 260
-__SYSCALL(__NR_fchownat, sys_fchownat)
-#define __NR_futimesat 261
-__SYSCALL(__NR_futimesat, sys_futimesat)
-#define __NR_newfstatat 262
-__SYSCALL(__NR_newfstatat, sys_newfstatat)
-#define __NR_unlinkat 263
-__SYSCALL(__NR_unlinkat, sys_unlinkat)
-#define __NR_renameat 264
-__SYSCALL(__NR_renameat, sys_renameat)
-#define __NR_linkat 265
-__SYSCALL(__NR_linkat, sys_linkat)
-#define __NR_symlinkat 266
-__SYSCALL(__NR_symlinkat, sys_symlinkat)
-#define __NR_readlinkat 267
-__SYSCALL(__NR_readlinkat, sys_readlinkat)
-#define __NR_fchmodat 268
-__SYSCALL(__NR_fchmodat, sys_fchmodat)
-#define __NR_faccessat 269
-__SYSCALL(__NR_faccessat, sys_faccessat)
-#define __NR_pselect6 270
-__SYSCALL(__NR_pselect6, sys_pselect6)
-#define __NR_ppoll 271
-__SYSCALL(__NR_ppoll, sys_ppoll)
-#define __NR_unshare 272
-__SYSCALL(__NR_unshare, sys_unshare)
-#define __NR_set_robust_list 273
-__SYSCALL(__NR_set_robust_list, sys_set_robust_list)
-#define __NR_get_robust_list 274
-__SYSCALL(__NR_get_robust_list, sys_get_robust_list)
-#define __NR_splice 275
-__SYSCALL(__NR_splice, sys_splice)
-#define __NR_tee 276
-__SYSCALL(__NR_tee, sys_tee)
-#define __NR_sync_file_range 277
-__SYSCALL(__NR_sync_file_range, sys_sync_file_range)
-#define __NR_vmsplice 278
-__SYSCALL(__NR_vmsplice, sys_vmsplice)
-#define __NR_move_pages 279
-__SYSCALL(__NR_move_pages, sys_move_pages)
-#define __NR_utimensat 280
-__SYSCALL(__NR_utimensat, sys_utimensat)
-#define __IGNORE_getcpu /* implemented as a vsyscall */
-#define __NR_epoll_pwait 281
-__SYSCALL(__NR_epoll_pwait, sys_epoll_pwait)
-#define __NR_signalfd 282
-__SYSCALL(__NR_signalfd, sys_signalfd)
-#define __NR_timerfd_create 283
-__SYSCALL(__NR_timerfd_create, sys_timerfd_create)
-#define __NR_eventfd 284
-__SYSCALL(__NR_eventfd, sys_eventfd)
-#define __NR_fallocate 285
-__SYSCALL(__NR_fallocate, sys_fallocate)
-#define __NR_timerfd_settime 286
-__SYSCALL(__NR_timerfd_settime, sys_timerfd_settime)
-#define __NR_timerfd_gettime 287
-__SYSCALL(__NR_timerfd_gettime, sys_timerfd_gettime)
-#define __NR_accept4 288
-__SYSCALL(__NR_accept4, sys_accept4)
-#define __NR_signalfd4 289
-__SYSCALL(__NR_signalfd4, sys_signalfd4)
-#define __NR_eventfd2 290
-__SYSCALL(__NR_eventfd2, sys_eventfd2)
-#define __NR_epoll_create1 291
-__SYSCALL(__NR_epoll_create1, sys_epoll_create1)
-#define __NR_dup3 292
-__SYSCALL(__NR_dup3, sys_dup3)
-#define __NR_pipe2 293
-__SYSCALL(__NR_pipe2, sys_pipe2)
-#define __NR_inotify_init1 294
-__SYSCALL(__NR_inotify_init1, sys_inotify_init1)
-#define __NR_preadv 295
-__SYSCALL(__NR_preadv, sys_preadv)
-#define __NR_pwritev 296
-__SYSCALL(__NR_pwritev, sys_pwritev)
-#define __NR_rt_tgsigqueueinfo 297
-__SYSCALL(__NR_rt_tgsigqueueinfo, sys_rt_tgsigqueueinfo)
-#define __NR_perf_event_open 298
-__SYSCALL(__NR_perf_event_open, sys_perf_event_open)
-#define __NR_recvmmsg 299
-__SYSCALL(__NR_recvmmsg, sys_recvmmsg)
-#define __NR_fanotify_init 300
-__SYSCALL(__NR_fanotify_init, sys_fanotify_init)
-#define __NR_fanotify_mark 301
-__SYSCALL(__NR_fanotify_mark, sys_fanotify_mark)
-#define __NR_prlimit64 302
-__SYSCALL(__NR_prlimit64, sys_prlimit64)
-#define __NR_name_to_handle_at 303
-__SYSCALL(__NR_name_to_handle_at, sys_name_to_handle_at)
-#define __NR_open_by_handle_at 304
-__SYSCALL(__NR_open_by_handle_at, sys_open_by_handle_at)
-#define __NR_clock_adjtime 305
-__SYSCALL(__NR_clock_adjtime, sys_clock_adjtime)
-#define __NR_syncfs 306
-__SYSCALL(__NR_syncfs, sys_syncfs)
-
-#ifndef __NO_STUBS
-#define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_OLD_STAT
-#define __ARCH_WANT_SYS_ALARM
-#define __ARCH_WANT_SYS_GETHOSTNAME
-#define __ARCH_WANT_SYS_PAUSE
-#define __ARCH_WANT_SYS_SGETMASK
-#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_UTIME
-#define __ARCH_WANT_SYS_WAITPID
-#define __ARCH_WANT_SYS_SOCKETCALL
-#define __ARCH_WANT_SYS_FADVISE64
-#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
-#define __ARCH_WANT_SYS_OLD_UNAME
-#define __ARCH_WANT_SYS_OLDUMOUNT
-#define __ARCH_WANT_SYS_SIGPENDING
-#define __ARCH_WANT_SYS_SIGPROCMASK
-#define __ARCH_WANT_SYS_RT_SIGACTION
-#define __ARCH_WANT_SYS_RT_SIGSUSPEND
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_COMPAT_SYS_TIME
-#endif /* __NO_STUBS */
-
-#ifdef __KERNEL__
-
-#ifndef COMPILE_OFFSETS
-#include <asm/asm-offsets.h>
-#define NR_syscalls (__NR_syscall_max + 1)
-#endif
-
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n\t.set\t" #x ",sys_ni_syscall")
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_X86_UNISTD_64_H */
diff --git a/arch/x86/include/asm/unwind.h b/arch/x86/include/asm/unwind.h
new file mode 100644
index 000000000000..7cede4dc21f0
--- /dev/null
+++ b/arch/x86/include/asm/unwind.h
@@ -0,0 +1,154 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_UNWIND_H
+#define _ASM_X86_UNWIND_H
+
+#include <linux/sched.h>
+#include <linux/ftrace.h>
+#include <linux/rethook.h>
+#include <asm/ptrace.h>
+#include <asm/stacktrace.h>
+
+#define IRET_FRAME_OFFSET (offsetof(struct pt_regs, ip))
+#define IRET_FRAME_SIZE (sizeof(struct pt_regs) - IRET_FRAME_OFFSET)
+
+struct unwind_state {
+ struct stack_info stack_info;
+ unsigned long stack_mask;
+ struct task_struct *task;
+ int graph_idx;
+#if defined(CONFIG_RETHOOK)
+ struct llist_node *kr_cur;
+#endif
+ bool error;
+#if defined(CONFIG_UNWINDER_ORC)
+ bool signal, full_regs;
+ unsigned long sp, bp, ip;
+ struct pt_regs *regs, *prev_regs;
+#elif defined(CONFIG_UNWINDER_FRAME_POINTER)
+ bool got_irq;
+ unsigned long *bp, *orig_sp, ip;
+ /*
+ * If non-NULL: The current frame is incomplete and doesn't contain a
+ * valid BP. When looking for the next frame, use this instead of the
+ * non-existent saved BP.
+ */
+ unsigned long *next_bp;
+ struct pt_regs *regs;
+#else
+ unsigned long *sp;
+#endif
+};
+
+void __unwind_start(struct unwind_state *state, struct task_struct *task,
+ struct pt_regs *regs, unsigned long *first_frame);
+bool unwind_next_frame(struct unwind_state *state);
+unsigned long unwind_get_return_address(struct unwind_state *state);
+unsigned long *unwind_get_return_address_ptr(struct unwind_state *state);
+
+static inline bool unwind_done(struct unwind_state *state)
+{
+ return state->stack_info.type == STACK_TYPE_UNKNOWN;
+}
+
+static inline bool unwind_error(struct unwind_state *state)
+{
+ return state->error;
+}
+
+static inline
+void unwind_start(struct unwind_state *state, struct task_struct *task,
+ struct pt_regs *regs, unsigned long *first_frame)
+{
+ first_frame = first_frame ? : get_stack_pointer(task, regs);
+
+ __unwind_start(state, task, regs, first_frame);
+}
+
+#if defined(CONFIG_UNWINDER_ORC) || defined(CONFIG_UNWINDER_FRAME_POINTER)
+/*
+ * If 'partial' returns true, only the iret frame registers are valid.
+ */
+static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state,
+ bool *partial)
+{
+ if (unwind_done(state))
+ return NULL;
+
+ if (partial) {
+#ifdef CONFIG_UNWINDER_ORC
+ *partial = !state->full_regs;
+#else
+ *partial = false;
+#endif
+ }
+
+ return state->regs;
+}
+#else
+static inline struct pt_regs *unwind_get_entry_regs(struct unwind_state *state,
+ bool *partial)
+{
+ return NULL;
+}
+#endif
+
+#ifdef CONFIG_UNWINDER_ORC
+void unwind_init(void);
+void unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size,
+ void *orc, size_t orc_size);
+#else
+static inline void unwind_init(void) {}
+static inline
+void unwind_module_init(struct module *mod, void *orc_ip, size_t orc_ip_size,
+ void *orc, size_t orc_size) {}
+#endif
+
+static inline
+unsigned long unwind_recover_rethook(struct unwind_state *state,
+ unsigned long addr, unsigned long *addr_p)
+{
+#ifdef CONFIG_RETHOOK
+ if (is_rethook_trampoline(addr))
+ return rethook_find_ret_addr(state->task, (unsigned long)addr_p,
+ &state->kr_cur);
+#endif
+ return addr;
+}
+
+/* Recover the return address modified by rethook and ftrace_graph. */
+static inline
+unsigned long unwind_recover_ret_addr(struct unwind_state *state,
+ unsigned long addr, unsigned long *addr_p)
+{
+ unsigned long ret;
+
+ ret = ftrace_graph_ret_addr(state->task, &state->graph_idx,
+ addr, addr_p);
+ return unwind_recover_rethook(state, ret, addr_p);
+}
+
+/*
+ * This disables KASAN checking when reading a value from another task's stack,
+ * since the other task could be running on another CPU and could have poisoned
+ * the stack in the meantime.
+ */
+#define READ_ONCE_TASK_STACK(task, x) \
+({ \
+ unsigned long val; \
+ if (task == current) \
+ val = READ_ONCE(x); \
+ else \
+ val = READ_ONCE_NOCHECK(x); \
+ val; \
+})
+
+static inline bool task_on_another_cpu(struct task_struct *task)
+{
+#ifdef CONFIG_SMP
+ return task != current && task->on_cpu;
+#else
+ return false;
+#endif
+}
+
+#endif /* _ASM_X86_UNWIND_H */
diff --git a/arch/x86/include/asm/unwind_hints.h b/arch/x86/include/asm/unwind_hints.h
new file mode 100644
index 000000000000..01cb9692b160
--- /dev/null
+++ b/arch/x86/include/asm/unwind_hints.h
@@ -0,0 +1,84 @@
+#ifndef _ASM_X86_UNWIND_HINTS_H
+#define _ASM_X86_UNWIND_HINTS_H
+
+#include <linux/objtool.h>
+
+#include "orc_types.h"
+
+#ifdef __ASSEMBLY__
+
+.macro UNWIND_HINT_END_OF_STACK
+ UNWIND_HINT type=UNWIND_HINT_TYPE_END_OF_STACK
+.endm
+
+.macro UNWIND_HINT_UNDEFINED
+ UNWIND_HINT type=UNWIND_HINT_TYPE_UNDEFINED
+.endm
+
+.macro UNWIND_HINT_ENTRY
+ VALIDATE_UNRET_BEGIN
+ UNWIND_HINT_END_OF_STACK
+.endm
+
+.macro UNWIND_HINT_REGS base=%rsp offset=0 indirect=0 extra=1 partial=0 signal=1
+ .if \base == %rsp
+ .if \indirect
+ .set sp_reg, ORC_REG_SP_INDIRECT
+ .else
+ .set sp_reg, ORC_REG_SP
+ .endif
+ .elseif \base == %rbp
+ .set sp_reg, ORC_REG_BP
+ .elseif \base == %rdi
+ .set sp_reg, ORC_REG_DI
+ .elseif \base == %rdx
+ .set sp_reg, ORC_REG_DX
+ .elseif \base == %r10
+ .set sp_reg, ORC_REG_R10
+ .else
+ .error "UNWIND_HINT_REGS: bad base register"
+ .endif
+
+ .set sp_offset, \offset
+
+ .if \partial
+ .set type, UNWIND_HINT_TYPE_REGS_PARTIAL
+ .elseif \extra == 0
+ .set type, UNWIND_HINT_TYPE_REGS_PARTIAL
+ .set sp_offset, \offset + (16*8)
+ .else
+ .set type, UNWIND_HINT_TYPE_REGS
+ .endif
+
+ UNWIND_HINT sp_reg=sp_reg sp_offset=sp_offset type=type signal=\signal
+.endm
+
+.macro UNWIND_HINT_IRET_REGS base=%rsp offset=0 signal=1
+ UNWIND_HINT_REGS base=\base offset=\offset partial=1 signal=\signal
+.endm
+
+.macro UNWIND_HINT_IRET_ENTRY base=%rsp offset=0 signal=1
+ VALIDATE_UNRET_BEGIN
+ UNWIND_HINT_IRET_REGS base=\base offset=\offset signal=\signal
+.endm
+
+.macro UNWIND_HINT_FUNC
+ UNWIND_HINT sp_reg=ORC_REG_SP sp_offset=8 type=UNWIND_HINT_TYPE_FUNC
+.endm
+
+.macro UNWIND_HINT_SAVE
+ UNWIND_HINT type=UNWIND_HINT_TYPE_SAVE
+.endm
+
+.macro UNWIND_HINT_RESTORE
+ UNWIND_HINT type=UNWIND_HINT_TYPE_RESTORE
+.endm
+
+#else
+
+#define UNWIND_HINT_FUNC \
+ UNWIND_HINT(UNWIND_HINT_TYPE_FUNC, ORC_REG_SP, 8, 0)
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_X86_UNWIND_HINTS_H */
diff --git a/arch/x86/include/asm/uprobes.h b/arch/x86/include/asm/uprobes.h
new file mode 100644
index 000000000000..678fb546f0a7
--- /dev/null
+++ b/arch/x86/include/asm/uprobes.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _ASM_UPROBES_H
+#define _ASM_UPROBES_H
+/*
+ * User-space Probes (UProbes) for x86
+ *
+ * Copyright (C) IBM Corporation, 2008-2011
+ * Authors:
+ * Srikar Dronamraju
+ * Jim Keniston
+ */
+
+#include <linux/notifier.h>
+
+typedef u8 uprobe_opcode_t;
+
+#define MAX_UINSN_BYTES 16
+#define UPROBE_XOL_SLOT_BYTES 128 /* to keep it cache aligned */
+
+#define UPROBE_SWBP_INSN 0xcc
+#define UPROBE_SWBP_INSN_SIZE 1
+
+struct uprobe_xol_ops;
+
+struct arch_uprobe {
+ union {
+ u8 insn[MAX_UINSN_BYTES];
+ u8 ixol[MAX_UINSN_BYTES];
+ };
+
+ const struct uprobe_xol_ops *ops;
+
+ union {
+ struct {
+ s32 offs;
+ u8 ilen;
+ u8 opc1;
+ } branch;
+ struct {
+ u8 fixups;
+ u8 ilen;
+ } defparam;
+ struct {
+ u8 reg_offset; /* to the start of pt_regs */
+ u8 ilen;
+ } push;
+ };
+};
+
+struct arch_uprobe_task {
+#ifdef CONFIG_X86_64
+ unsigned long saved_scratch_register;
+#endif
+ unsigned int saved_trap_nr;
+ unsigned int saved_tf;
+};
+
+#endif /* _ASM_UPROBES_H */
diff --git a/arch/x86/include/asm/user.h b/arch/x86/include/asm/user.h
index 24532c7da3d6..413c91746b27 100644
--- a/arch/x86/include/asm/user.h
+++ b/arch/x86/include/asm/user.h
@@ -1,10 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_USER_H
#define _ASM_X86_USER_H
#ifdef CONFIG_X86_32
-# include "user_32.h"
+# include <asm/user_32.h>
#else
-# include "user_64.h"
+# include <asm/user_64.h>
#endif
#include <asm/types.h>
@@ -14,8 +15,8 @@ struct user_ymmh_regs {
__u32 ymmh_space[64];
};
-struct user_xsave_hdr {
- __u64 xstate_bv;
+struct user_xstate_header {
+ __u64 xfeatures;
__u64 reserved1[2];
__u64 reserved2[5];
};
@@ -41,11 +42,11 @@ struct user_xsave_hdr {
* particular process/thread.
*
* Also when the user modifies certain state FP/SSE/etc through the
- * ptrace interface, they must ensure that the xsave_hdr.xstate_bv
+ * ptrace interface, they must ensure that the header.xfeatures
* bytes[512..519] of the memory layout are updated correspondingly.
* i.e., for example when FP state is modified to a non-init state,
- * xsave_hdr.xstate_bv's bit 0 must be set to '1', when SSE is modified to
- * non-init state, xsave_hdr.xstate_bv's bit 1 must to be set to '1', etc.
+ * header.xfeatures's bit 0 must be set to '1', when SSE is modified to
+ * non-init state, header.xfeatures's bit 1 must to be set to '1', etc.
*/
#define USER_XSTATE_FX_SW_WORDS 6
#define USER_XSTATE_XCR0_WORD 0
@@ -55,7 +56,7 @@ struct user_xstateregs {
__u64 fpx_space[58];
__u64 xstate_fx_sw[USER_XSTATE_FX_SW_WORDS];
} i387;
- struct user_xsave_hdr xsave_hdr;
+ struct user_xstate_header header;
struct user_ymmh_regs ymmh;
/* further processor state extensions go here */
};
diff --git a/arch/x86/include/asm/user32.h b/arch/x86/include/asm/user32.h
index 14cbb73ebcba..fa577312f63a 100644
--- a/arch/x86/include/asm/user32.h
+++ b/arch/x86/include/asm/user32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_USER32_H
#define _ASM_X86_USER32_H
diff --git a/arch/x86/include/asm/user_32.h b/arch/x86/include/asm/user_32.h
index bebfd8644016..8963915e533f 100644
--- a/arch/x86/include/asm/user_32.h
+++ b/arch/x86/include/asm/user_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_USER_32_H
#define _ASM_X86_USER_32_H
@@ -123,9 +124,5 @@ struct user{
char u_comm[32]; /* User command that was responsible */
int u_debugreg[8];
};
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
#endif /* _ASM_X86_USER_32_H */
diff --git a/arch/x86/include/asm/user_64.h b/arch/x86/include/asm/user_64.h
index faf2cd3e0d76..1dd10f07ccd6 100644
--- a/arch/x86/include/asm/user_64.h
+++ b/arch/x86/include/asm/user_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_USER_64_H
#define _ASM_X86_USER_64_H
@@ -129,9 +130,5 @@ struct user {
unsigned long error_code; /* CPU error code or 0 */
unsigned long fault_address; /* CR3 or 0 */
};
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
#endif /* _ASM_X86_USER_64_H */
diff --git a/arch/x86/include/asm/uv/bios.h b/arch/x86/include/asm/uv/bios.h
index 71605c7d5c5c..1b6455f881f9 100644
--- a/arch/x86/include/asm/uv/bios.h
+++ b/arch/x86/include/asm/uv/bios.h
@@ -1,25 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_X86_UV_BIOS_H
#define _ASM_X86_UV_BIOS_H
/*
* UV BIOS layer definitions.
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * Copyright (c) 2008-2009 Silicon Graphics, Inc. All Rights Reserved.
- * Copyright (c) Russ Anderson <rja@sgi.com>
+ * (C) Copyright 2020 Hewlett Packard Enterprise Development LP
+ * Copyright (C) 2007-2017 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (c) Russ Anderson <rja@sgi.com>
*/
#include <linux/rtc.h>
@@ -40,6 +28,20 @@ enum uv_bios_cmd {
UV_BIOS_SET_LEGACY_VGA_TARGET
};
+#define UV_BIOS_EXTRA 0x10000
+#define UV_BIOS_GET_PCI_TOPOLOGY 0x10001
+#define UV_BIOS_GET_GEOINFO 0x10003
+
+#define UV_BIOS_EXTRA_OP_MEM_COPYIN 0x1000
+#define UV_BIOS_EXTRA_OP_MEM_COPYOUT 0x2000
+#define UV_BIOS_EXTRA_OP_MASK 0x0fff
+#define UV_BIOS_EXTRA_GET_HEAPSIZE 1
+#define UV_BIOS_EXTRA_INSTALL_HEAP 2
+#define UV_BIOS_EXTRA_MASTER_NASID 3
+#define UV_BIOS_EXTRA_OBJECT_COUNT (10|UV_BIOS_EXTRA_OP_MEM_COPYOUT)
+#define UV_BIOS_EXTRA_ENUM_OBJECTS (12|UV_BIOS_EXTRA_OP_MEM_COPYOUT)
+#define UV_BIOS_EXTRA_ENUM_PORTS (13|UV_BIOS_EXTRA_OP_MEM_COPYOUT)
+
/*
* Status values returned from a BIOS call.
*/
@@ -48,19 +50,107 @@ enum {
BIOS_STATUS_SUCCESS = 0,
BIOS_STATUS_UNIMPLEMENTED = -ENOSYS,
BIOS_STATUS_EINVAL = -EINVAL,
- BIOS_STATUS_UNAVAIL = -EBUSY
+ BIOS_STATUS_UNAVAIL = -EBUSY,
+ BIOS_STATUS_ABORT = -EINTR,
+};
+
+/* Address map parameters */
+struct uv_gam_parameters {
+ u64 mmr_base;
+ u64 gru_base;
+ u8 mmr_shift; /* Convert PNode to MMR space offset */
+ u8 gru_shift; /* Convert PNode to GRU space offset */
+ u8 gpa_shift; /* Size of offset field in GRU phys addr */
+ u8 unused1;
};
+/* UV_TABLE_GAM_RANGE_ENTRY values */
+#define UV_GAM_RANGE_TYPE_UNUSED 0 /* End of table */
+#define UV_GAM_RANGE_TYPE_RAM 1 /* Normal RAM */
+#define UV_GAM_RANGE_TYPE_NVRAM 2 /* Non-volatile memory */
+#define UV_GAM_RANGE_TYPE_NV_WINDOW 3 /* NVMDIMM block window */
+#define UV_GAM_RANGE_TYPE_NV_MAILBOX 4 /* NVMDIMM mailbox */
+#define UV_GAM_RANGE_TYPE_HOLE 5 /* Unused address range */
+#define UV_GAM_RANGE_TYPE_MAX 6
+
+/* The structure stores PA bits 56:26, for 64MB granularity */
+#define UV_GAM_RANGE_SHFT 26 /* 64MB */
+
+struct uv_gam_range_entry {
+ char type; /* Entry type: GAM_RANGE_TYPE_UNUSED, etc. */
+ char unused1;
+ u16 nasid; /* HNasid */
+ u16 sockid; /* Socket ID, high bits of APIC ID */
+ u16 pnode; /* Index to MMR and GRU spaces */
+ u32 unused2;
+ u32 limit; /* PA bits 56:26 (UV_GAM_RANGE_SHFT) */
+};
+
+#define UV_AT_SIZE 8 /* 7 character arch type + NULL char */
+struct uv_arch_type_entry {
+ char archtype[UV_AT_SIZE];
+};
+
+#define UV_SYSTAB_SIG "UVST"
+#define UV_SYSTAB_VERSION_1 1 /* UV2/3 BIOS version */
+#define UV_SYSTAB_VERSION_UV4 0x400 /* UV4 BIOS base version */
+#define UV_SYSTAB_VERSION_UV4_1 0x401 /* + gpa_shift */
+#define UV_SYSTAB_VERSION_UV4_2 0x402 /* + TYPE_NVRAM/WINDOW/MBOX */
+#define UV_SYSTAB_VERSION_UV4_3 0x403 /* - GAM Range PXM Value */
+#define UV_SYSTAB_VERSION_UV4_LATEST UV_SYSTAB_VERSION_UV4_3
+
+#define UV_SYSTAB_VERSION_UV5 0x500 /* UV5 GAM base version */
+#define UV_SYSTAB_VERSION_UV5_LATEST UV_SYSTAB_VERSION_UV5
+
+#define UV_SYSTAB_TYPE_UNUSED 0 /* End of table (offset == 0) */
+#define UV_SYSTAB_TYPE_GAM_PARAMS 1 /* GAM PARAM conversions */
+#define UV_SYSTAB_TYPE_GAM_RNG_TBL 2 /* GAM entry table */
+#define UV_SYSTAB_TYPE_ARCH_TYPE 3 /* UV arch type */
+#define UV_SYSTAB_TYPE_MAX 4
+
/*
* The UV system table describes specific firmware
* capabilities available to the Linux kernel at runtime.
*/
struct uv_systab {
- char signature[4]; /* must be "UVST" */
+ char signature[4]; /* must be UV_SYSTAB_SIG */
u32 revision; /* distinguish different firmware revs */
u64 function; /* BIOS runtime callback function ptr */
+ u32 size; /* systab size (starting with _VERSION_UV4) */
+ struct {
+ u32 type:8; /* type of entry */
+ u32 offset:24; /* byte offset from struct start to entry */
+ } entry[1]; /* additional entries follow */
+};
+extern struct uv_systab *uv_systab;
+
+#define UV_BIOS_MAXSTRING 128
+struct uv_bios_hub_info {
+ unsigned int id;
+ union {
+ struct {
+ unsigned long long this_part:1;
+ unsigned long long is_shared:1;
+ unsigned long long is_disabled:1;
+ } fields;
+ struct {
+ unsigned long long flags;
+ unsigned long long reserved;
+ } b;
+ } f;
+ char name[UV_BIOS_MAXSTRING];
+ char location[UV_BIOS_MAXSTRING];
+ unsigned int ports;
};
+struct uv_bios_port_info {
+ unsigned int port;
+ unsigned int conn_id;
+ unsigned int conn_port;
+};
+
+/* (... end of definitions from UV BIOS ...) */
+
enum {
BIOS_FREQ_BASE_PLATFORM = 0,
BIOS_FREQ_BASE_INTERVAL_TIMER = 1,
@@ -83,13 +173,6 @@ enum uv_memprotect {
UV_MEMPROT_ALLOW_RW
};
-/*
- * bios calls have 6 parameters
- */
-extern s64 uv_bios_call(enum uv_bios_cmd, u64, u64, u64, u64, u64);
-extern s64 uv_bios_call_irqsave(enum uv_bios_cmd, u64, u64, u64, u64, u64);
-extern s64 uv_bios_call_reentrant(enum uv_bios_cmd, u64, u64, u64, u64, u64);
-
extern s64 uv_bios_get_sn_info(int, int *, long *, long *, long *, long *);
extern s64 uv_bios_freq_base(u64, u64 *);
extern int uv_bios_mq_watchlist_alloc(unsigned long, unsigned int,
@@ -99,7 +182,17 @@ extern s64 uv_bios_change_memprotect(u64, u64, enum uv_memprotect);
extern s64 uv_bios_reserved_page_pa(u64, u64 *, u64 *, u64 *);
extern int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus);
-extern void uv_bios_init(void);
+extern s64 uv_bios_get_master_nasid(u64 sz, u64 *nasid);
+extern s64 uv_bios_get_heapsize(u64 nasid, u64 sz, u64 *heap_sz);
+extern s64 uv_bios_install_heap(u64 nasid, u64 sz, u64 *heap);
+extern s64 uv_bios_obj_count(u64 nasid, u64 sz, u64 *objcnt);
+extern s64 uv_bios_enum_objs(u64 nasid, u64 sz, u64 *objbuf);
+extern s64 uv_bios_enum_ports(u64 nasid, u64 obj_id, u64 sz, u64 *portbuf);
+extern s64 uv_bios_get_geoinfo(u64 nasid, u64 sz, u64 *geo);
+extern s64 uv_bios_get_pci_topology(u64 sz, u64 *buf);
+
+extern int uv_bios_init(void);
+extern unsigned long get_uv_systab_phys(bool msg);
extern unsigned long sn_rtc_cycles_per_second;
extern int uv_type;
@@ -107,8 +200,14 @@ extern long sn_partition_id;
extern long sn_coherency_id;
extern long sn_region_size;
extern long system_serial_number;
-#define partition_coherence_id() (sn_coherency_id)
+extern ssize_t uv_get_archtype(char *buf, int len);
+extern int uv_get_hubless_system(void);
extern struct kobject *sgi_uv_kobj; /* /sys/firmware/sgi_uv */
+/*
+ * EFI runtime lock; cf. firmware/efi/runtime-wrappers.c for details
+ */
+extern struct semaphore __efi_uv_runtime_lock;
+
#endif /* _ASM_X86_UV_BIOS_H */
diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h
index 3bb9491b7659..648eb23fe7f0 100644
--- a/arch/x86/include/asm/uv/uv.h
+++ b/arch/x86/include/asm/uv/uv.h
@@ -1,33 +1,43 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_UV_UV_H
#define _ASM_X86_UV_UV_H
-enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC, UV_NON_UNIQUE_APIC};
-
-struct cpumask;
-struct mm_struct;
+enum uv_system_type {UV_NONE, UV_LEGACY_APIC, UV_X2APIC};
#ifdef CONFIG_X86_UV
+#include <linux/efi.h>
+
+#define UV_PROC_NODE "sgi_uv"
+
+static inline int uv(int uvtype)
+{
+ /* uv(0) is "any" */
+ if (uvtype >= 0 && uvtype <= 30)
+ return 1 << uvtype;
+ return 1;
+}
+
+extern unsigned long uv_systab_phys;
extern enum uv_system_type get_uv_system_type(void);
+static inline bool is_early_uv_system(void)
+{
+ return uv_systab_phys && uv_systab_phys != EFI_INVALID_TABLE_ADDR;
+}
extern int is_uv_system(void);
+extern int is_uv_hubbed(int uvtype);
extern void uv_cpu_init(void);
extern void uv_nmi_init(void);
extern void uv_system_init(void);
-extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
- struct mm_struct *mm,
- unsigned long va,
- unsigned int cpu);
-#else /* X86_UV */
+#else /* !X86_UV */
static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }
+static inline bool is_early_uv_system(void) { return 0; }
static inline int is_uv_system(void) { return 0; }
+static inline int is_uv_hubbed(int uv) { return 0; }
static inline void uv_cpu_init(void) { }
static inline void uv_system_init(void) { }
-static inline const struct cpumask *
-uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm,
- unsigned long va, unsigned int cpu)
-{ return cpumask; }
#endif /* X86_UV */
diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h
deleted file mode 100644
index 3e094af443c3..000000000000
--- a/arch/x86/include/asm/uv/uv_bau.h
+++ /dev/null
@@ -1,488 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * SGI UV Broadcast Assist Unit definitions
- *
- * Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved.
- */
-
-#ifndef _ASM_X86_UV_UV_BAU_H
-#define _ASM_X86_UV_UV_BAU_H
-
-#include <linux/bitmap.h>
-#define BITSPERBYTE 8
-
-/*
- * Broadcast Assist Unit messaging structures
- *
- * Selective Broadcast activations are induced by software action
- * specifying a particular 8-descriptor "set" via a 6-bit index written
- * to an MMR.
- * Thus there are 64 unique 512-byte sets of SB descriptors - one set for
- * each 6-bit index value. These descriptor sets are mapped in sequence
- * starting with set 0 located at the address specified in the
- * BAU_SB_DESCRIPTOR_BASE register, set 1 is located at BASE + 512,
- * set 2 is at BASE + 2*512, set 3 at BASE + 3*512, and so on.
- *
- * We will use one set for sending BAU messages from each of the
- * cpu's on the uvhub.
- *
- * TLB shootdown will use the first of the 8 descriptors of each set.
- * Each of the descriptors is 64 bytes in size (8*64 = 512 bytes in a set).
- */
-
-#define MAX_CPUS_PER_UVHUB 64
-#define MAX_CPUS_PER_SOCKET 32
-#define UV_ADP_SIZE 64 /* hardware-provided max. */
-#define UV_CPUS_PER_ACT_STATUS 32 /* hardware-provided max. */
-#define UV_ITEMS_PER_DESCRIPTOR 8
-/* the 'throttle' to prevent the hardware stay-busy bug */
-#define MAX_BAU_CONCURRENT 3
-#define UV_ACT_STATUS_MASK 0x3
-#define UV_ACT_STATUS_SIZE 2
-#define UV_DISTRIBUTION_SIZE 256
-#define UV_SW_ACK_NPENDING 8
-#define UV_NET_ENDPOINT_INTD 0x38
-#define UV_DESC_BASE_PNODE_SHIFT 49
-#define UV_PAYLOADQ_PNODE_SHIFT 49
-#define UV_PTC_BASENAME "sgi_uv/ptc_statistics"
-#define UV_BAU_BASENAME "sgi_uv/bau_tunables"
-#define UV_BAU_TUNABLES_DIR "sgi_uv"
-#define UV_BAU_TUNABLES_FILE "bau_tunables"
-#define WHITESPACE " \t\n"
-#define uv_physnodeaddr(x) ((__pa((unsigned long)(x)) & uv_mmask))
-#define UV_ENABLE_INTD_SOFT_ACK_MODE_SHIFT 15
-#define UV_INTD_SOFT_ACK_TIMEOUT_PERIOD_SHIFT 16
-#define UV_INTD_SOFT_ACK_TIMEOUT_PERIOD 0x0000000009UL
-/* [19:16] SOFT_ACK timeout period 19: 1 is urgency 7 17:16 1 is multiplier */
-#define BAU_MISC_CONTROL_MULT_MASK 3
-
-#define UVH_AGING_PRESCALE_SEL 0x000000b000UL
-/* [30:28] URGENCY_7 an index into a table of times */
-#define BAU_URGENCY_7_SHIFT 28
-#define BAU_URGENCY_7_MASK 7
-
-#define UVH_TRANSACTION_TIMEOUT 0x000000b200UL
-/* [45:40] BAU - BAU transaction timeout select - a multiplier */
-#define BAU_TRANS_SHIFT 40
-#define BAU_TRANS_MASK 0x3f
-
-/*
- * bits in UVH_LB_BAU_SB_ACTIVATION_STATUS_0/1
- */
-#define DESC_STATUS_IDLE 0
-#define DESC_STATUS_ACTIVE 1
-#define DESC_STATUS_DESTINATION_TIMEOUT 2
-#define DESC_STATUS_SOURCE_TIMEOUT 3
-
-/*
- * delay for 'plugged' timeout retries, in microseconds
- */
-#define PLUGGED_DELAY 10
-
-/*
- * threshholds at which to use IPI to free resources
- */
-/* after this # consecutive 'plugged' timeouts, use IPI to release resources */
-#define PLUGSB4RESET 100
-/* after this many consecutive timeouts, use IPI to release resources */
-#define TIMEOUTSB4RESET 1
-/* at this number uses of IPI to release resources, giveup the request */
-#define IPI_RESET_LIMIT 1
-/* after this # consecutive successes, bump up the throttle if it was lowered */
-#define COMPLETE_THRESHOLD 5
-
-/*
- * number of entries in the destination side payload queue
- */
-#define DEST_Q_SIZE 20
-/*
- * number of destination side software ack resources
- */
-#define DEST_NUM_RESOURCES 8
-/*
- * completion statuses for sending a TLB flush message
- */
-#define FLUSH_RETRY_PLUGGED 1
-#define FLUSH_RETRY_TIMEOUT 2
-#define FLUSH_GIVEUP 3
-#define FLUSH_COMPLETE 4
-
-/*
- * tuning the action when the numalink network is extremely delayed
- */
-#define CONGESTED_RESPONSE_US 1000 /* 'long' response time, in microseconds */
-#define CONGESTED_REPS 10 /* long delays averaged over this many broadcasts */
-#define CONGESTED_PERIOD 30 /* time for the bau to be disabled, in seconds */
-
-/*
- * Distribution: 32 bytes (256 bits) (bytes 0-0x1f of descriptor)
- * If the 'multilevel' flag in the header portion of the descriptor
- * has been set to 0, then endpoint multi-unicast mode is selected.
- * The distribution specification (32 bytes) is interpreted as a 256-bit
- * distribution vector. Adjacent bits correspond to consecutive even numbered
- * nodeIDs. The result of adding the index of a given bit to the 15-bit
- * 'base_dest_nodeid' field of the header corresponds to the
- * destination nodeID associated with that specified bit.
- */
-struct bau_target_uvhubmask {
- unsigned long bits[BITS_TO_LONGS(UV_DISTRIBUTION_SIZE)];
-};
-
-/*
- * mask of cpu's on a uvhub
- * (during initialization we need to check that unsigned long has
- * enough bits for max. cpu's per uvhub)
- */
-struct bau_local_cpumask {
- unsigned long bits;
-};
-
-/*
- * Payload: 16 bytes (128 bits) (bytes 0x20-0x2f of descriptor)
- * only 12 bytes (96 bits) of the payload area are usable.
- * An additional 3 bytes (bits 27:4) of the header address are carried
- * to the next bytes of the destination payload queue.
- * And an additional 2 bytes of the header Suppl_A field are also
- * carried to the destination payload queue.
- * But the first byte of the Suppl_A becomes bits 127:120 (the 16th byte)
- * of the destination payload queue, which is written by the hardware
- * with the s/w ack resource bit vector.
- * [ effective message contents (16 bytes (128 bits) maximum), not counting
- * the s/w ack bit vector ]
- */
-
-/*
- * The payload is software-defined for INTD transactions
- */
-struct bau_msg_payload {
- unsigned long address; /* signifies a page or all TLB's
- of the cpu */
- /* 64 bits */
- unsigned short sending_cpu; /* filled in by sender */
- /* 16 bits */
- unsigned short acknowledge_count;/* filled in by destination */
- /* 16 bits */
- unsigned int reserved1:32; /* not usable */
-};
-
-
-/*
- * Message header: 16 bytes (128 bits) (bytes 0x30-0x3f of descriptor)
- * see table 4.2.3.0.1 in broacast_assist spec.
- */
-struct bau_msg_header {
- unsigned int dest_subnodeid:6; /* must be 0x10, for the LB */
- /* bits 5:0 */
- unsigned int base_dest_nodeid:15; /* nasid of the */
- /* bits 20:6 */ /* first bit in uvhub map */
- unsigned int command:8; /* message type */
- /* bits 28:21 */
- /* 0x38: SN3net EndPoint Message */
- unsigned int rsvd_1:3; /* must be zero */
- /* bits 31:29 */
- /* int will align on 32 bits */
- unsigned int rsvd_2:9; /* must be zero */
- /* bits 40:32 */
- /* Suppl_A is 56-41 */
- unsigned int sequence:16;/* message sequence number */
- /* bits 56:41 */ /* becomes bytes 16-17 of msg */
- /* Address field (96:57) is never used as an
- address (these are address bits 42:3) */
-
- unsigned int rsvd_3:1; /* must be zero */
- /* bit 57 */
- /* address bits 27:4 are payload */
- /* these next 24 (58-81) bits become bytes 12-14 of msg */
-
- /* bits 65:58 land in byte 12 */
- unsigned int replied_to:1;/* sent as 0 by the source to byte 12 */
- /* bit 58 */
- unsigned int msg_type:3; /* software type of the message*/
- /* bits 61:59 */
- unsigned int canceled:1; /* message canceled, resource to be freed*/
- /* bit 62 */
- unsigned int payload_1a:1;/* not currently used */
- /* bit 63 */
- unsigned int payload_1b:2;/* not currently used */
- /* bits 65:64 */
-
- /* bits 73:66 land in byte 13 */
- unsigned int payload_1ca:6;/* not currently used */
- /* bits 71:66 */
- unsigned int payload_1c:2;/* not currently used */
- /* bits 73:72 */
-
- /* bits 81:74 land in byte 14 */
- unsigned int payload_1d:6;/* not currently used */
- /* bits 79:74 */
- unsigned int payload_1e:2;/* not currently used */
- /* bits 81:80 */
-
- unsigned int rsvd_4:7; /* must be zero */
- /* bits 88:82 */
- unsigned int sw_ack_flag:1;/* software acknowledge flag */
- /* bit 89 */
- /* INTD trasactions at destination are to
- wait for software acknowledge */
- unsigned int rsvd_5:6; /* must be zero */
- /* bits 95:90 */
- unsigned int rsvd_6:5; /* must be zero */
- /* bits 100:96 */
- unsigned int int_both:1;/* if 1, interrupt both sockets on the uvhub */
- /* bit 101*/
- unsigned int fairness:3;/* usually zero */
- /* bits 104:102 */
- unsigned int multilevel:1; /* multi-level multicast format */
- /* bit 105 */
- /* 0 for TLB: endpoint multi-unicast messages */
- unsigned int chaining:1;/* next descriptor is part of this activation*/
- /* bit 106 */
- unsigned int rsvd_7:21; /* must be zero */
- /* bits 127:107 */
-};
-
-/* see msg_type: */
-#define MSG_NOOP 0
-#define MSG_REGULAR 1
-#define MSG_RETRY 2
-
-/*
- * The activation descriptor:
- * The format of the message to send, plus all accompanying control
- * Should be 64 bytes
- */
-struct bau_desc {
- struct bau_target_uvhubmask distribution;
- /*
- * message template, consisting of header and payload:
- */
- struct bau_msg_header header;
- struct bau_msg_payload payload;
-};
-/*
- * -payload-- ---------header------
- * bytes 0-11 bits 41-56 bits 58-81
- * A B (2) C (3)
- *
- * A/B/C are moved to:
- * A C B
- * bytes 0-11 bytes 12-14 bytes 16-17 (byte 15 filled in by hw as vector)
- * ------------payload queue-----------
- */
-
-/*
- * The payload queue on the destination side is an array of these.
- * With BAU_MISC_CONTROL set for software acknowledge mode, the messages
- * are 32 bytes (2 micropackets) (256 bits) in length, but contain only 17
- * bytes of usable data, including the sw ack vector in byte 15 (bits 127:120)
- * (12 bytes come from bau_msg_payload, 3 from payload_1, 2 from
- * sw_ack_vector and payload_2)
- * "Enabling Software Acknowledgment mode (see Section 4.3.3 Software
- * Acknowledge Processing) also selects 32 byte (17 bytes usable) payload
- * operation."
- */
-struct bau_payload_queue_entry {
- unsigned long address; /* signifies a page or all TLB's
- of the cpu */
- /* 64 bits, bytes 0-7 */
-
- unsigned short sending_cpu; /* cpu that sent the message */
- /* 16 bits, bytes 8-9 */
-
- unsigned short acknowledge_count; /* filled in by destination */
- /* 16 bits, bytes 10-11 */
-
- /* these next 3 bytes come from bits 58-81 of the message header */
- unsigned short replied_to:1; /* sent as 0 by the source */
- unsigned short msg_type:3; /* software message type */
- unsigned short canceled:1; /* sent as 0 by the source */
- unsigned short unused1:3; /* not currently using */
- /* byte 12 */
-
- unsigned char unused2a; /* not currently using */
- /* byte 13 */
- unsigned char unused2; /* not currently using */
- /* byte 14 */
-
- unsigned char sw_ack_vector; /* filled in by the hardware */
- /* byte 15 (bits 127:120) */
-
- unsigned short sequence; /* message sequence number */
- /* bytes 16-17 */
- unsigned char unused4[2]; /* not currently using bytes 18-19 */
- /* bytes 18-19 */
-
- int number_of_cpus; /* filled in at destination */
- /* 32 bits, bytes 20-23 (aligned) */
-
- unsigned char unused5[8]; /* not using */
- /* bytes 24-31 */
-};
-
-struct msg_desc {
- struct bau_payload_queue_entry *msg;
- int msg_slot;
- int sw_ack_slot;
- struct bau_payload_queue_entry *va_queue_first;
- struct bau_payload_queue_entry *va_queue_last;
-};
-
-struct reset_args {
- int sender;
-};
-
-/*
- * This structure is allocated per_cpu for UV TLB shootdown statistics.
- */
-struct ptc_stats {
- /* sender statistics */
- unsigned long s_giveup; /* number of fall backs to IPI-style flushes */
- unsigned long s_requestor; /* number of shootdown requests */
- unsigned long s_stimeout; /* source side timeouts */
- unsigned long s_dtimeout; /* destination side timeouts */
- unsigned long s_time; /* time spent in sending side */
- unsigned long s_retriesok; /* successful retries */
- unsigned long s_ntargcpu; /* total number of cpu's targeted */
- unsigned long s_ntargself; /* times the sending cpu was targeted */
- unsigned long s_ntarglocals; /* targets of cpus on the local blade */
- unsigned long s_ntargremotes; /* targets of cpus on remote blades */
- unsigned long s_ntarglocaluvhub; /* targets of the local hub */
- unsigned long s_ntargremoteuvhub; /* remotes hubs targeted */
- unsigned long s_ntarguvhub; /* total number of uvhubs targeted */
- unsigned long s_ntarguvhub16; /* number of times target hubs >= 16*/
- unsigned long s_ntarguvhub8; /* number of times target hubs >= 8 */
- unsigned long s_ntarguvhub4; /* number of times target hubs >= 4 */
- unsigned long s_ntarguvhub2; /* number of times target hubs >= 2 */
- unsigned long s_ntarguvhub1; /* number of times target hubs == 1 */
- unsigned long s_resets_plug; /* ipi-style resets from plug state */
- unsigned long s_resets_timeout; /* ipi-style resets from timeouts */
- unsigned long s_busy; /* status stayed busy past s/w timer */
- unsigned long s_throttles; /* waits in throttle */
- unsigned long s_retry_messages; /* retry broadcasts */
- unsigned long s_bau_reenabled; /* for bau enable/disable */
- unsigned long s_bau_disabled; /* for bau enable/disable */
- /* destination statistics */
- unsigned long d_alltlb; /* times all tlb's on this cpu were flushed */
- unsigned long d_onetlb; /* times just one tlb on this cpu was flushed */
- unsigned long d_multmsg; /* interrupts with multiple messages */
- unsigned long d_nomsg; /* interrupts with no message */
- unsigned long d_time; /* time spent on destination side */
- unsigned long d_requestee; /* number of messages processed */
- unsigned long d_retries; /* number of retry messages processed */
- unsigned long d_canceled; /* number of messages canceled by retries */
- unsigned long d_nocanceled; /* retries that found nothing to cancel */
- unsigned long d_resets; /* number of ipi-style requests processed */
- unsigned long d_rcanceled; /* number of messages canceled by resets */
-};
-
-/*
- * one per-cpu; to locate the software tables
- */
-struct bau_control {
- struct bau_desc *descriptor_base;
- struct bau_payload_queue_entry *va_queue_first;
- struct bau_payload_queue_entry *va_queue_last;
- struct bau_payload_queue_entry *bau_msg_head;
- struct bau_control *uvhub_master;
- struct bau_control *socket_master;
- struct ptc_stats *statp;
- unsigned long timeout_interval;
- unsigned long set_bau_on_time;
- atomic_t active_descriptor_count;
- int plugged_tries;
- int timeout_tries;
- int ipi_attempts;
- int conseccompletes;
- int baudisabled;
- int set_bau_off;
- short cpu;
- short uvhub_cpu;
- short uvhub;
- short cpus_in_socket;
- short cpus_in_uvhub;
- unsigned short message_number;
- unsigned short uvhub_quiesce;
- short socket_acknowledge_count[DEST_Q_SIZE];
- cycles_t send_message;
- spinlock_t uvhub_lock;
- spinlock_t queue_lock;
- /* tunables */
- int max_bau_concurrent;
- int max_bau_concurrent_constant;
- int plugged_delay;
- int plugsb4reset;
- int timeoutsb4reset;
- int ipi_reset_limit;
- int complete_threshold;
- int congested_response_us;
- int congested_reps;
- int congested_period;
- cycles_t period_time;
- long period_requests;
-};
-
-static inline int bau_uvhub_isset(int uvhub, struct bau_target_uvhubmask *dstp)
-{
- return constant_test_bit(uvhub, &dstp->bits[0]);
-}
-static inline void bau_uvhub_set(int uvhub, struct bau_target_uvhubmask *dstp)
-{
- __set_bit(uvhub, &dstp->bits[0]);
-}
-static inline void bau_uvhubs_clear(struct bau_target_uvhubmask *dstp,
- int nbits)
-{
- bitmap_zero(&dstp->bits[0], nbits);
-}
-static inline int bau_uvhub_weight(struct bau_target_uvhubmask *dstp)
-{
- return bitmap_weight((unsigned long *)&dstp->bits[0],
- UV_DISTRIBUTION_SIZE);
-}
-
-static inline void bau_cpubits_clear(struct bau_local_cpumask *dstp, int nbits)
-{
- bitmap_zero(&dstp->bits, nbits);
-}
-
-#define cpubit_isset(cpu, bau_local_cpumask) \
- test_bit((cpu), (bau_local_cpumask).bits)
-
-extern void uv_bau_message_intr1(void);
-extern void uv_bau_timeout_intr1(void);
-
-struct atomic_short {
- short counter;
-};
-
-/**
- * atomic_read_short - read a short atomic variable
- * @v: pointer of type atomic_short
- *
- * Atomically reads the value of @v.
- */
-static inline int atomic_read_short(const struct atomic_short *v)
-{
- return v->counter;
-}
-
-/**
- * atomic_add_short_return - add and return a short int
- * @i: short value to add
- * @v: pointer of type atomic_short
- *
- * Atomically adds @i to @v and returns @i + @v
- */
-static inline int atomic_add_short_return(short i, struct atomic_short *v)
-{
- short __i = i;
- asm volatile(LOCK_PREFIX "xaddw %0, %1"
- : "+r" (i), "+m" (v->counter)
- : : "memory");
- return i + __i;
-}
-
-#endif /* _ASM_X86_UV_UV_BAU_H */
diff --git a/arch/x86/include/asm/uv/uv_geo.h b/arch/x86/include/asm/uv/uv_geo.h
new file mode 100644
index 000000000000..027a9258dbca
--- /dev/null
+++ b/arch/x86/include/asm/uv/uv_geo.h
@@ -0,0 +1,103 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2020 Hewlett Packard Enterprise Development LP. All rights reserved.
+ */
+
+#ifndef _ASM_UV_GEO_H
+#define _ASM_UV_GEO_H
+
+/* Type declarations */
+
+/* Size of a geoid_s structure (must be before decl. of geoid_u) */
+#define GEOID_SIZE 8
+
+/* Fields common to all substructures */
+struct geo_common_s {
+ unsigned char type; /* What type of h/w is named by this geoid_s */
+ unsigned char blade;
+ unsigned char slot; /* slot is IRU */
+ unsigned char upos;
+ unsigned char rack;
+};
+
+/* Additional fields for particular types of hardware */
+struct geo_node_s {
+ struct geo_common_s common; /* No additional fields needed */
+};
+
+struct geo_rtr_s {
+ struct geo_common_s common; /* No additional fields needed */
+};
+
+struct geo_iocntl_s {
+ struct geo_common_s common; /* No additional fields needed */
+};
+
+struct geo_pcicard_s {
+ struct geo_iocntl_s common;
+ char bus; /* Bus/widget number */
+ char slot; /* PCI slot number */
+};
+
+/* Subcomponents of a node */
+struct geo_cpu_s {
+ struct geo_node_s node;
+ unsigned char socket:4, /* Which CPU on the node */
+ thread:4;
+ unsigned char core;
+};
+
+struct geo_mem_s {
+ struct geo_node_s node;
+ char membus; /* The memory bus on the node */
+ char memslot; /* The memory slot on the bus */
+};
+
+union geoid_u {
+ struct geo_common_s common;
+ struct geo_node_s node;
+ struct geo_iocntl_s iocntl;
+ struct geo_pcicard_s pcicard;
+ struct geo_rtr_s rtr;
+ struct geo_cpu_s cpu;
+ struct geo_mem_s mem;
+ char padsize[GEOID_SIZE];
+};
+
+/* Defined constants */
+
+#define GEO_MAX_LEN 48
+
+#define GEO_TYPE_INVALID 0
+#define GEO_TYPE_MODULE 1
+#define GEO_TYPE_NODE 2
+#define GEO_TYPE_RTR 3
+#define GEO_TYPE_IOCNTL 4
+#define GEO_TYPE_IOCARD 5
+#define GEO_TYPE_CPU 6
+#define GEO_TYPE_MEM 7
+#define GEO_TYPE_MAX (GEO_TYPE_MEM+1)
+
+static inline int geo_rack(union geoid_u g)
+{
+ return (g.common.type == GEO_TYPE_INVALID) ?
+ -1 : g.common.rack;
+}
+
+static inline int geo_slot(union geoid_u g)
+{
+ return (g.common.type == GEO_TYPE_INVALID) ?
+ -1 : g.common.upos;
+}
+
+static inline int geo_blade(union geoid_u g)
+{
+ return (g.common.type == GEO_TYPE_INVALID) ?
+ -1 : g.common.blade * 2 + g.common.slot;
+}
+
+#endif /* _ASM_UV_GEO_H */
diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h
index a501741c2335..d3e3197917be 100644
--- a/arch/x86/include/asm/uv/uv_hub.h
+++ b/arch/x86/include/asm/uv/uv_hub.h
@@ -5,7 +5,8 @@
*
* SGI UV architectural definitions
*
- * Copyright (C) 2007-2010 Silicon Graphics, Inc. All rights reserved.
+ * (C) Copyright 2020 Hewlett Packard Enterprise Development LP
+ * Copyright (C) 2007-2014 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_X86_UV_UV_HUB_H
@@ -16,9 +17,12 @@
#include <linux/percpu.h>
#include <linux/timer.h>
#include <linux/io.h>
+#include <linux/topology.h>
#include <asm/types.h>
#include <asm/percpu.h>
+#include <asm/uv/uv.h>
#include <asm/uv/uv_mmrs.h>
+#include <asm/uv/bios.h>
#include <asm/irq_vectors.h>
#include <asm/io_apic.h>
@@ -46,6 +50,13 @@
* PNODE - the low N bits of the GNODE. The PNODE is the most useful variant
* of the nasid for socket usage.
*
+ * GPA - (global physical address) a socket physical address converted
+ * so that it can be used by the GRU as a global address. Socket
+ * physical addresses 1) need additional NASID (node) bits added
+ * to the high end of the address, and 2) unaliased if the
+ * partition does not have a physical address 0. In addition, on
+ * UV2 rev 1, GPAs need the gnode left shifted to bits 39 or 40.
+ *
*
* NumaLink Global Physical Address Format:
* +--------------------------------+---------------------+
@@ -77,8 +88,9 @@
*
* 1111110000000000
* 5432109876543210
- * pppppppppplc0cch Nehalem-EX
- * ppppppppplcc0cch Westmere-EX
+ * pppppppppplc0cch Nehalem-EX (12 bits in hdw reg)
+ * ppppppppplcc0cch Westmere-EX (12 bits in hdw reg)
+ * pppppppppppcccch SandyBridge (15 bits in hdw reg)
* sssssssssss
*
* p = pnode bits
@@ -87,7 +99,7 @@
* h = hyperthread
* s = bits that are in the SOCKET_ID CSR
*
- * Note: Processor only supports 12 bits in the APICID register. The ACPI
+ * Note: Processor may support fewer bits in the APICID register. The ACPI
* tables hold all 16 bits. Software needs to be aware of this.
*
* Unless otherwise specified, all references to APICID refer to
@@ -95,7 +107,6 @@
* processor APICID register.
*/
-
/*
* Maximum number of bricks in all partitions and in all coherency domains.
* This is the total number of bricks accessible in the numalink fabric. It
@@ -119,42 +130,129 @@
*/
#define UV_MAX_NASID_VALUE (UV_MAX_NUMALINK_BLADES * 2)
-struct uv_scir_s {
- struct timer_list timer;
- unsigned long offset;
- unsigned long last;
- unsigned long idle_on;
- unsigned long idle_off;
- unsigned char state;
- unsigned char enabled;
+/* GAM (globally addressed memory) range table */
+struct uv_gam_range_s {
+ u32 limit; /* PA bits 56:26 (GAM_RANGE_SHFT) */
+ u16 nasid; /* node's global physical address */
+ s8 base; /* entry index of node's base addr */
+ u8 reserved;
};
/*
* The following defines attributes of the HUB chip. These attributes are
- * frequently referenced and are kept in the per-cpu data areas of each cpu.
- * They are kept together in a struct to minimize cache misses.
+ * frequently referenced and are kept in a common per hub struct.
+ * After setup, the struct is read only, so it should be readily
+ * available in the L3 cache on the cpu socket for the node.
*/
struct uv_hub_info_s {
+ unsigned int hub_type;
+ unsigned char hub_revision;
unsigned long global_mmr_base;
+ unsigned long global_mmr_shift;
unsigned long gpa_mask;
+ unsigned short *socket_to_node;
+ unsigned short *socket_to_pnode;
+ unsigned short *pnode_to_socket;
+ struct uv_gam_range_s *gr_table;
+ unsigned short min_socket;
+ unsigned short min_pnode;
+ unsigned char m_val;
+ unsigned char n_val;
+ unsigned char gr_table_len;
+ unsigned char apic_pnode_shift;
+ unsigned char gpa_shift;
+ unsigned char nasid_shift;
+ unsigned char m_shift;
+ unsigned char n_lshift;
unsigned int gnode_extra;
unsigned long gnode_upper;
unsigned long lowmem_remap_top;
unsigned long lowmem_remap_base;
+ unsigned long global_gru_base;
+ unsigned long global_gru_shift;
unsigned short pnode;
unsigned short pnode_mask;
unsigned short coherency_domain_number;
unsigned short numa_blade_id;
- unsigned char blade_processor_id;
- unsigned char m_val;
- unsigned char n_val;
- struct uv_scir_s scir;
- unsigned char apic_pnode_shift;
+ unsigned short nr_possible_cpus;
+ unsigned short nr_online_cpus;
+ short memory_nid;
};
-DECLARE_PER_CPU(struct uv_hub_info_s, __uv_hub_info);
-#define uv_hub_info (&__get_cpu_var(__uv_hub_info))
-#define uv_cpu_hub_info(cpu) (&per_cpu(__uv_hub_info, cpu))
+/* CPU specific info with a pointer to the hub common info struct */
+struct uv_cpu_info_s {
+ void *p_uv_hub_info;
+ unsigned char blade_cpu_id;
+ void *reserved;
+};
+DECLARE_PER_CPU(struct uv_cpu_info_s, __uv_cpu_info);
+
+#define uv_cpu_info this_cpu_ptr(&__uv_cpu_info)
+#define uv_cpu_info_per(cpu) (&per_cpu(__uv_cpu_info, cpu))
+
+/* Node specific hub common info struct */
+extern void **__uv_hub_info_list;
+static inline struct uv_hub_info_s *uv_hub_info_list(int node)
+{
+ return (struct uv_hub_info_s *)__uv_hub_info_list[node];
+}
+
+static inline struct uv_hub_info_s *_uv_hub_info(void)
+{
+ return (struct uv_hub_info_s *)uv_cpu_info->p_uv_hub_info;
+}
+#define uv_hub_info _uv_hub_info()
+
+static inline struct uv_hub_info_s *uv_cpu_hub_info(int cpu)
+{
+ return (struct uv_hub_info_s *)uv_cpu_info_per(cpu)->p_uv_hub_info;
+}
+
+static inline int uv_hub_type(void)
+{
+ return uv_hub_info->hub_type;
+}
+
+static inline __init void uv_hub_type_set(int uvmask)
+{
+ uv_hub_info->hub_type = uvmask;
+}
+
+
+/*
+ * HUB revision ranges for each UV HUB architecture.
+ * This is a software convention - NOT the hardware revision numbers in
+ * the hub chip.
+ */
+#define UV2_HUB_REVISION_BASE 3
+#define UV3_HUB_REVISION_BASE 5
+#define UV4_HUB_REVISION_BASE 7
+#define UV4A_HUB_REVISION_BASE 8 /* UV4 (fixed) rev 2 */
+#define UV5_HUB_REVISION_BASE 9
+
+static inline int is_uv(int uvmask) { return uv_hub_type() & uvmask; }
+static inline int is_uv1_hub(void) { return 0; }
+static inline int is_uv2_hub(void) { return is_uv(UV2); }
+static inline int is_uv3_hub(void) { return is_uv(UV3); }
+static inline int is_uv4a_hub(void) { return is_uv(UV4A); }
+static inline int is_uv4_hub(void) { return is_uv(UV4); }
+static inline int is_uv5_hub(void) { return is_uv(UV5); }
+
+/*
+ * UV4A is a revision of UV4. So on UV4A, both is_uv4_hub() and
+ * is_uv4a_hub() return true, While on UV4, only is_uv4_hub()
+ * returns true. So to get true results, first test if is UV4A,
+ * then test if is UV4.
+ */
+
+/* UVX class: UV2,3,4 */
+static inline int is_uvx_hub(void) { return is_uv(UVX); }
+
+/* UVY class: UV5,..? */
+static inline int is_uvy_hub(void) { return is_uv(UVY); }
+
+/* Any UV Hubbed System */
+static inline int is_uv_hub(void) { return is_uv(UV_ANY); }
union uvh_apicid {
unsigned long v;
@@ -176,20 +274,67 @@ union uvh_apicid {
* g - GNODE (full 15-bit global nasid, right shifted 1)
* p - PNODE (local part of nsids, right shifted 1)
*/
-#define UV_NASID_TO_PNODE(n) (((n) >> 1) & uv_hub_info->pnode_mask)
+#define UV_NASID_TO_PNODE(n) \
+ (((n) >> uv_hub_info->nasid_shift) & uv_hub_info->pnode_mask)
#define UV_PNODE_TO_GNODE(p) ((p) |uv_hub_info->gnode_extra)
-#define UV_PNODE_TO_NASID(p) (UV_PNODE_TO_GNODE(p) << 1)
+#define UV_PNODE_TO_NASID(p) \
+ (UV_PNODE_TO_GNODE(p) << uv_hub_info->nasid_shift)
+
+#define UV2_LOCAL_MMR_BASE 0xfa000000UL
+#define UV2_GLOBAL_MMR32_BASE 0xfc000000UL
+#define UV2_LOCAL_MMR_SIZE (32UL * 1024 * 1024)
+#define UV2_GLOBAL_MMR32_SIZE (32UL * 1024 * 1024)
+
+#define UV3_LOCAL_MMR_BASE 0xfa000000UL
+#define UV3_GLOBAL_MMR32_BASE 0xfc000000UL
+#define UV3_LOCAL_MMR_SIZE (32UL * 1024 * 1024)
+#define UV3_GLOBAL_MMR32_SIZE (32UL * 1024 * 1024)
+
+#define UV4_LOCAL_MMR_BASE 0xfa000000UL
+#define UV4_GLOBAL_MMR32_BASE 0
+#define UV4_LOCAL_MMR_SIZE (32UL * 1024 * 1024)
+#define UV4_GLOBAL_MMR32_SIZE 0
+
+#define UV5_LOCAL_MMR_BASE 0xfa000000UL
+#define UV5_GLOBAL_MMR32_BASE 0
+#define UV5_LOCAL_MMR_SIZE (32UL * 1024 * 1024)
+#define UV5_GLOBAL_MMR32_SIZE 0
+
+#define UV_LOCAL_MMR_BASE ( \
+ is_uv(UV2) ? UV2_LOCAL_MMR_BASE : \
+ is_uv(UV3) ? UV3_LOCAL_MMR_BASE : \
+ is_uv(UV4) ? UV4_LOCAL_MMR_BASE : \
+ is_uv(UV5) ? UV5_LOCAL_MMR_BASE : \
+ 0)
+
+#define UV_GLOBAL_MMR32_BASE ( \
+ is_uv(UV2) ? UV2_GLOBAL_MMR32_BASE : \
+ is_uv(UV3) ? UV3_GLOBAL_MMR32_BASE : \
+ is_uv(UV4) ? UV4_GLOBAL_MMR32_BASE : \
+ is_uv(UV5) ? UV5_GLOBAL_MMR32_BASE : \
+ 0)
+
+#define UV_LOCAL_MMR_SIZE ( \
+ is_uv(UV2) ? UV2_LOCAL_MMR_SIZE : \
+ is_uv(UV3) ? UV3_LOCAL_MMR_SIZE : \
+ is_uv(UV4) ? UV4_LOCAL_MMR_SIZE : \
+ is_uv(UV5) ? UV5_LOCAL_MMR_SIZE : \
+ 0)
+
+#define UV_GLOBAL_MMR32_SIZE ( \
+ is_uv(UV2) ? UV2_GLOBAL_MMR32_SIZE : \
+ is_uv(UV3) ? UV3_GLOBAL_MMR32_SIZE : \
+ is_uv(UV4) ? UV4_GLOBAL_MMR32_SIZE : \
+ is_uv(UV5) ? UV5_GLOBAL_MMR32_SIZE : \
+ 0)
-#define UV_LOCAL_MMR_BASE 0xf4000000UL
-#define UV_GLOBAL_MMR32_BASE 0xf8000000UL
#define UV_GLOBAL_MMR64_BASE (uv_hub_info->global_mmr_base)
-#define UV_LOCAL_MMR_SIZE (64UL * 1024 * 1024)
-#define UV_GLOBAL_MMR32_SIZE (64UL * 1024 * 1024)
#define UV_GLOBAL_GRU_MMR_BASE 0x4000000
#define UV_GLOBAL_MMR32_PNODE_SHIFT 15
-#define UV_GLOBAL_MMR64_PNODE_SHIFT 26
+#define _UV_GLOBAL_MMR64_PNODE_SHIFT 26
+#define UV_GLOBAL_MMR64_PNODE_SHIFT (uv_hub_info->global_mmr_shift)
#define UV_GLOBAL_MMR32_PNODE_BITS(p) ((p) << (UV_GLOBAL_MMR32_PNODE_SHIFT))
@@ -199,8 +344,6 @@ union uvh_apicid {
#define UVH_APICID 0x002D0E00L
#define UV_APIC_PNODE_SHIFT 6
-#define UV_APICID_HIBIT_MASK 0xffff0000
-
/* Local Bus from cpu's perspective */
#define LOCAL_BUS_BASE 0x1c00000
#define LOCAL_BUS_SIZE (4 * 1024 * 1024)
@@ -210,7 +353,7 @@ union uvh_apicid {
*
* Note there are NO leds on a UV system. This register is only
* used by the system controller to monitor system-wide operation.
- * There are 64 regs per node. With Nahelem cpus (2 cores per node,
+ * There are 64 regs per node. With Nehalem cpus (2 cores per node,
* 8 cpus per core, 2 threads per cpu) there are 32 cpu threads on
* a node.
*
@@ -236,14 +379,75 @@ union uvh_apicid {
* between socket virtual and socket physical addresses.
*/
+/* global bits offset - number of local address bits in gpa for this UV arch */
+static inline unsigned int uv_gpa_shift(void)
+{
+ return uv_hub_info->gpa_shift;
+}
+#define _uv_gpa_shift
+
+/* Find node that has the address range that contains global address */
+static inline struct uv_gam_range_s *uv_gam_range(unsigned long pa)
+{
+ struct uv_gam_range_s *gr = uv_hub_info->gr_table;
+ unsigned long pal = (pa & uv_hub_info->gpa_mask) >> UV_GAM_RANGE_SHFT;
+ int i, num = uv_hub_info->gr_table_len;
+
+ if (gr) {
+ for (i = 0; i < num; i++, gr++) {
+ if (pal < gr->limit)
+ return gr;
+ }
+ }
+ pr_crit("UV: GAM Range for 0x%lx not found at %p!\n", pa, gr);
+ BUG();
+}
+
+/* Return base address of node that contains global address */
+static inline unsigned long uv_gam_range_base(unsigned long pa)
+{
+ struct uv_gam_range_s *gr = uv_gam_range(pa);
+ int base = gr->base;
+
+ if (base < 0)
+ return 0UL;
+
+ return uv_hub_info->gr_table[base].limit;
+}
+
+/* socket phys RAM --> UV global NASID (UV4+) */
+static inline unsigned long uv_soc_phys_ram_to_nasid(unsigned long paddr)
+{
+ return uv_gam_range(paddr)->nasid;
+}
+#define _uv_soc_phys_ram_to_nasid
+
+/* socket virtual --> UV global NASID (UV4+) */
+static inline unsigned long uv_gpa_nasid(void *v)
+{
+ return uv_soc_phys_ram_to_nasid(__pa(v));
+}
+
/* socket phys RAM --> UV global physical address */
static inline unsigned long uv_soc_phys_ram_to_gpa(unsigned long paddr)
{
+ unsigned int m_val = uv_hub_info->m_val;
+
if (paddr < uv_hub_info->lowmem_remap_top)
paddr |= uv_hub_info->lowmem_remap_base;
- return paddr | uv_hub_info->gnode_upper;
-}
+ if (m_val) {
+ paddr |= uv_hub_info->gnode_upper;
+ paddr = ((paddr << uv_hub_info->m_shift)
+ >> uv_hub_info->m_shift) |
+ ((paddr >> uv_hub_info->m_val)
+ << uv_hub_info->n_lshift);
+ } else {
+ paddr |= uv_soc_phys_ram_to_nasid(paddr)
+ << uv_hub_info->gpa_shift;
+ }
+ return paddr;
+}
/* socket virtual --> UV global physical address */
static inline unsigned long uv_gpa(void *v)
@@ -261,43 +465,89 @@ uv_gpa_in_mmr_space(unsigned long gpa)
/* UV global physical address --> socket phys RAM */
static inline unsigned long uv_gpa_to_soc_phys_ram(unsigned long gpa)
{
- unsigned long paddr = gpa & uv_hub_info->gpa_mask;
+ unsigned long paddr;
unsigned long remap_base = uv_hub_info->lowmem_remap_base;
unsigned long remap_top = uv_hub_info->lowmem_remap_top;
+ unsigned int m_val = uv_hub_info->m_val;
+
+ if (m_val)
+ gpa = ((gpa << uv_hub_info->m_shift) >> uv_hub_info->m_shift) |
+ ((gpa >> uv_hub_info->n_lshift) << uv_hub_info->m_val);
+ paddr = gpa & uv_hub_info->gpa_mask;
if (paddr >= remap_base && paddr < remap_base + remap_top)
paddr -= remap_base;
return paddr;
}
-
-/* gnode -> pnode */
+/* gpa -> gnode */
static inline unsigned long uv_gpa_to_gnode(unsigned long gpa)
{
- return gpa >> uv_hub_info->m_val;
+ unsigned int n_lshift = uv_hub_info->n_lshift;
+
+ if (n_lshift)
+ return gpa >> n_lshift;
+
+ return uv_gam_range(gpa)->nasid >> 1;
}
/* gpa -> pnode */
static inline int uv_gpa_to_pnode(unsigned long gpa)
{
- unsigned long n_mask = (1UL << uv_hub_info->n_val) - 1;
+ return uv_gpa_to_gnode(gpa) & uv_hub_info->pnode_mask;
+}
+
+/* gpa -> node offset */
+static inline unsigned long uv_gpa_to_offset(unsigned long gpa)
+{
+ unsigned int m_shift = uv_hub_info->m_shift;
+
+ if (m_shift)
+ return (gpa << m_shift) >> m_shift;
+
+ return (gpa & uv_hub_info->gpa_mask) - uv_gam_range_base(gpa);
+}
+
+/* Convert socket to node */
+static inline int _uv_socket_to_node(int socket, unsigned short *s2nid)
+{
+ return s2nid ? s2nid[socket - uv_hub_info->min_socket] : socket;
+}
- return uv_gpa_to_gnode(gpa) & n_mask;
+static inline int uv_socket_to_node(int socket)
+{
+ return _uv_socket_to_node(socket, uv_hub_info->socket_to_node);
}
/* pnode, offset --> socket virtual */
static inline void *uv_pnode_offset_to_vaddr(int pnode, unsigned long offset)
{
- return __va(((unsigned long)pnode << uv_hub_info->m_val) | offset);
-}
+ unsigned int m_val = uv_hub_info->m_val;
+ unsigned long base;
+ unsigned short sockid, node, *p2s;
+ if (m_val)
+ return __va(((unsigned long)pnode << m_val) | offset);
-/*
- * Extract a PNODE from an APICID (full apicid, not processor subset)
- */
+ p2s = uv_hub_info->pnode_to_socket;
+ sockid = p2s ? p2s[pnode - uv_hub_info->min_pnode] : pnode;
+ node = uv_socket_to_node(sockid);
+
+ /* limit address of previous socket is our base, except node 0 is 0 */
+ if (!node)
+ return __va((unsigned long)offset);
+
+ base = (unsigned long)(uv_hub_info->gr_table[node - 1].limit);
+ return __va(base << UV_GAM_RANGE_SHFT | offset);
+}
+
+/* Extract/Convert a PNODE from an APICID (full apicid, not processor subset) */
static inline int uv_apicid_to_pnode(int apicid)
{
- return (apicid >> uv_hub_info->apic_pnode_shift);
+ int pnode = apicid >> uv_hub_info->apic_pnode_shift;
+ unsigned short *s2pn = uv_hub_info->socket_to_pnode;
+
+ return s2pn ? s2pn[pnode - uv_hub_info->min_socket] : pnode;
}
/*
@@ -340,16 +590,6 @@ static inline unsigned long uv_read_global_mmr64(int pnode, unsigned long offset
return readq(uv_global_mmr64_address(pnode, offset));
}
-/*
- * Global MMR space addresses when referenced by the GRU. (GRU does
- * NOT use socket addressing).
- */
-static inline unsigned long uv_global_gru_mmr_address(int pnode, unsigned long offset)
-{
- return UV_GLOBAL_GRU_MMR_BASE | offset |
- ((unsigned long)pnode << uv_hub_info->m_val);
-}
-
static inline void uv_write_global_mmr8(int pnode, unsigned long offset, unsigned char val)
{
writeb(val, uv_global_mmr64_address(pnode, offset));
@@ -389,25 +629,22 @@ static inline void uv_write_local_mmr8(unsigned long offset, unsigned char val)
writeb(val, uv_local_mmr_address(offset));
}
-/*
- * Structures and definitions for converting between cpu, node, pnode, and blade
- * numbers.
- */
-struct uv_blade_info {
- unsigned short nr_possible_cpus;
- unsigned short nr_online_cpus;
- unsigned short pnode;
- short memory_nid;
-};
-extern struct uv_blade_info *uv_blade_info;
-extern short *uv_node_to_blade;
-extern short *uv_cpu_to_blade;
-extern short uv_possible_blades;
-
/* Blade-local cpu number of current cpu. Numbered 0 .. <# cpus on the blade> */
static inline int uv_blade_processor_id(void)
{
- return uv_hub_info->blade_processor_id;
+ return uv_cpu_info->blade_cpu_id;
+}
+
+/* Blade-local cpu number of cpu N. Numbered 0 .. <# cpus on the blade> */
+static inline int uv_cpu_blade_processor_id(int cpu)
+{
+ return uv_cpu_info_per(cpu)->blade_cpu_id;
+}
+
+/* Blade number to Node number (UV2..UV4 is 1:1) */
+static inline int uv_blade_to_node(int blade)
+{
+ return blade;
}
/* Blade number of current cpu. Numnbered 0 .. <#blades -1> */
@@ -416,115 +653,126 @@ static inline int uv_numa_blade_id(void)
return uv_hub_info->numa_blade_id;
}
-/* Convert a cpu number to the the UV blade number */
-static inline int uv_cpu_to_blade_id(int cpu)
+/*
+ * Convert linux node number to the UV blade number.
+ * .. Currently for UV2 thru UV4 the node and the blade are identical.
+ * .. If this changes then you MUST check references to this function!
+ */
+static inline int uv_node_to_blade_id(int nid)
{
- return uv_cpu_to_blade[cpu];
+ return nid;
}
-/* Convert linux node number to the UV blade number */
-static inline int uv_node_to_blade_id(int nid)
+/* Convert a CPU number to the UV blade number */
+static inline int uv_cpu_to_blade_id(int cpu)
{
- return uv_node_to_blade[nid];
+ return uv_node_to_blade_id(cpu_to_node(cpu));
}
/* Convert a blade id to the PNODE of the blade */
static inline int uv_blade_to_pnode(int bid)
{
- return uv_blade_info[bid].pnode;
+ return uv_hub_info_list(uv_blade_to_node(bid))->pnode;
}
/* Nid of memory node on blade. -1 if no blade-local memory */
static inline int uv_blade_to_memory_nid(int bid)
{
- return uv_blade_info[bid].memory_nid;
+ return uv_hub_info_list(uv_blade_to_node(bid))->memory_nid;
}
/* Determine the number of possible cpus on a blade */
static inline int uv_blade_nr_possible_cpus(int bid)
{
- return uv_blade_info[bid].nr_possible_cpus;
+ return uv_hub_info_list(uv_blade_to_node(bid))->nr_possible_cpus;
}
/* Determine the number of online cpus on a blade */
static inline int uv_blade_nr_online_cpus(int bid)
{
- return uv_blade_info[bid].nr_online_cpus;
+ return uv_hub_info_list(uv_blade_to_node(bid))->nr_online_cpus;
}
/* Convert a cpu id to the PNODE of the blade containing the cpu */
static inline int uv_cpu_to_pnode(int cpu)
{
- return uv_blade_info[uv_cpu_to_blade_id(cpu)].pnode;
+ return uv_cpu_hub_info(cpu)->pnode;
}
/* Convert a linux node number to the PNODE of the blade */
static inline int uv_node_to_pnode(int nid)
{
- return uv_blade_info[uv_node_to_blade_id(nid)].pnode;
+ return uv_hub_info_list(nid)->pnode;
}
/* Maximum possible number of blades */
+extern short uv_possible_blades;
static inline int uv_num_possible_blades(void)
{
return uv_possible_blades;
}
-/* Update SCIR state */
-static inline void uv_set_scir_bits(unsigned char value)
-{
- if (uv_hub_info->scir.state != value) {
- uv_hub_info->scir.state = value;
- uv_write_local_mmr8(uv_hub_info->scir.offset, value);
- }
-}
-
-static inline unsigned long uv_scir_offset(int apicid)
-{
- return SCIR_LOCAL_MMR_BASE | (apicid & 0x3f);
-}
-
-static inline void uv_set_cpu_scir_bits(int cpu, unsigned char value)
-{
- if (uv_cpu_hub_info(cpu)->scir.state != value) {
- uv_write_global_mmr8(uv_cpu_to_pnode(cpu),
- uv_cpu_hub_info(cpu)->scir.offset, value);
- uv_cpu_hub_info(cpu)->scir.state = value;
- }
-}
+/* Per Hub NMI support */
+extern void uv_nmi_setup(void);
+extern void uv_nmi_setup_hubless(void);
+
+/* BIOS/Kernel flags exchange MMR */
+#define UVH_BIOS_KERNEL_MMR UVH_SCRATCH5
+#define UVH_BIOS_KERNEL_MMR_ALIAS UVH_SCRATCH5_ALIAS
+#define UVH_BIOS_KERNEL_MMR_ALIAS_2 UVH_SCRATCH5_ALIAS_2
+
+/* TSC sync valid, set by BIOS */
+#define UVH_TSC_SYNC_MMR UVH_BIOS_KERNEL_MMR
+#define UVH_TSC_SYNC_SHIFT 10
+#define UVH_TSC_SYNC_SHIFT_UV2K 16 /* UV2/3k have different bits */
+#define UVH_TSC_SYNC_MASK 3 /* 0011 */
+#define UVH_TSC_SYNC_VALID 3 /* 0011 */
+#define UVH_TSC_SYNC_UNKNOWN 0 /* 0000 */
+
+/* BMC sets a bit this MMR non-zero before sending an NMI */
+#define UVH_NMI_MMR UVH_BIOS_KERNEL_MMR
+#define UVH_NMI_MMR_CLEAR UVH_BIOS_KERNEL_MMR_ALIAS
+#define UVH_NMI_MMR_SHIFT 63
+#define UVH_NMI_MMR_TYPE "SCRATCH5"
+
+struct uv_hub_nmi_s {
+ raw_spinlock_t nmi_lock;
+ atomic_t in_nmi; /* flag this node in UV NMI IRQ */
+ atomic_t cpu_owner; /* last locker of this struct */
+ atomic_t read_mmr_count; /* count of MMR reads */
+ atomic_t nmi_count; /* count of true UV NMIs */
+ unsigned long nmi_value; /* last value read from NMI MMR */
+ bool hub_present; /* false means UV hubless system */
+ bool pch_owner; /* indicates this hub owns PCH */
+};
-extern unsigned int uv_apicid_hibits;
-static unsigned long uv_hub_ipi_value(int apicid, int vector, int mode)
-{
- apicid |= uv_apicid_hibits;
- return (1UL << UVH_IPI_INT_SEND_SHFT) |
- ((apicid) << UVH_IPI_INT_APIC_ID_SHFT) |
- (mode << UVH_IPI_INT_DELIVERY_MODE_SHFT) |
- (vector << UVH_IPI_INT_VECTOR_SHFT);
-}
+struct uv_cpu_nmi_s {
+ struct uv_hub_nmi_s *hub;
+ int state;
+ int pinging;
+ int queries;
+ int pings;
+};
-static inline void uv_hub_send_ipi(int pnode, int apicid, int vector)
-{
- unsigned long val;
- unsigned long dmode = dest_Fixed;
+DECLARE_PER_CPU(struct uv_cpu_nmi_s, uv_cpu_nmi);
- if (vector == NMI_VECTOR)
- dmode = dest_NMI;
+#define uv_hub_nmi this_cpu_read(uv_cpu_nmi.hub)
+#define uv_cpu_nmi_per(cpu) (per_cpu(uv_cpu_nmi, cpu))
+#define uv_hub_nmi_per(cpu) (uv_cpu_nmi_per(cpu).hub)
- val = uv_hub_ipi_value(apicid, vector, dmode);
- uv_write_global_mmr64(pnode, UVH_IPI_INT, val);
-}
+/* uv_cpu_nmi_states */
+#define UV_NMI_STATE_OUT 0
+#define UV_NMI_STATE_IN 1
+#define UV_NMI_STATE_DUMP 2
+#define UV_NMI_STATE_DUMP_DONE 3
/*
* Get the minimum revision number of the hub chips within the partition.
- * 1 - initial rev 1.0 silicon
- * 2 - rev 2.0 production silicon
+ * (See UVx_HUB_REVISION_BASE above for specific values.)
*/
static inline int uv_get_min_hub_revision_id(void)
{
- extern int uv_min_hub_revision_id;
-
- return uv_min_hub_revision_id;
+ return uv_hub_info->hub_revision;
}
#endif /* CONFIG_X86_64 */
diff --git a/arch/x86/include/asm/uv/uv_mmrs.h b/arch/x86/include/asm/uv/uv_mmrs.h
index 20cafeac7455..57fa67373262 100644
--- a/arch/x86/include/asm/uv/uv_mmrs.h
+++ b/arch/x86/include/asm/uv/uv_mmrs.h
@@ -3,412 +3,2657 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * SGI UV MMR definitions
+ * HPE UV MMR definitions
*
- * Copyright (C) 2007-2010 Silicon Graphics, Inc. All rights reserved.
+ * (C) Copyright 2020 Hewlett Packard Enterprise Development LP
+ * Copyright (C) 2007-2016 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_X86_UV_UV_MMRS_H
#define _ASM_X86_UV_UV_MMRS_H
+/*
+ * This file contains MMR definitions for all UV hubs types.
+ *
+ * To minimize coding differences between hub types, the symbols are
+ * grouped by architecture types.
+ *
+ * UVH - definitions common to all UV hub types.
+ * UVXH - definitions common to UVX class (2, 3, 4).
+ * UVYH - definitions common to UVY class (5).
+ * UV5H - definitions specific to UV type 5 hub.
+ * UV4AH - definitions specific to UV type 4A hub.
+ * UV4H - definitions specific to UV type 4 hub.
+ * UV3H - definitions specific to UV type 3 hub.
+ * UV2H - definitions specific to UV type 2 hub.
+ *
+ * If the MMR exists on all hub types but have different addresses,
+ * use a conditional operator to define the value at runtime. Any
+ * that are not defined are blank.
+ * (UV4A variations only generated if different from uv4)
+ * #define UVHxxx (
+ * is_uv(UV5) ? UV5Hxxx value :
+ * is_uv(UV4A) ? UV4AHxxx value :
+ * is_uv(UV4) ? UV4Hxxx value :
+ * is_uv(UV3) ? UV3Hxxx value :
+ * is_uv(UV2) ? UV2Hxxx value :
+ * <ucv> or <undef value>)
+ *
+ * Class UVX has UVs (2|3|4|4A).
+ * Class UVY has UVs (5).
+ *
+ * union uvh_xxx {
+ * unsigned long v;
+ * struct uvh_xxx_s { # Common fields only
+ * } s;
+ * struct uv5h_xxx_s { # Full UV5 definition (*)
+ * } s5;
+ * struct uv4ah_xxx_s { # Full UV4A definition (*)
+ * } s4a;
+ * struct uv4h_xxx_s { # Full UV4 definition (*)
+ * } s4;
+ * struct uv3h_xxx_s { # Full UV3 definition (*)
+ * } s3;
+ * struct uv2h_xxx_s { # Full UV2 definition (*)
+ * } s2;
+ * };
+ * (* - if present and different than the common struct)
+ *
+ * Only essential differences are enumerated. For example, if the address is
+ * the same for all UV's, only a single #define is generated. Likewise,
+ * if the contents is the same for all hubs, only the "s" structure is
+ * generated.
+ *
+ * (GEN Flags: undefs=function)
+ */
+
+ /* UV bit masks */
+#define UV2 (1 << 0)
+#define UV3 (1 << 1)
+#define UV4 (1 << 2)
+#define UV4A (1 << 3)
+#define UV5 (1 << 4)
+#define UVX (UV2|UV3|UV4)
+#define UVY (UV5)
+#define UV_ANY (~0)
+
+
+
+
#define UV_MMR_ENABLE (1UL << 63)
+#define UV1_HUB_PART_NUMBER 0x88a5
+#define UV2_HUB_PART_NUMBER 0x8eb8
+#define UV2_HUB_PART_NUMBER_X 0x1111
+#define UV3_HUB_PART_NUMBER 0x9578
+#define UV3_HUB_PART_NUMBER_X 0x4321
+#define UV4_HUB_PART_NUMBER 0x99a1
+#define UV5_HUB_PART_NUMBER 0xa171
+
+/* Error function to catch undefined references */
+extern unsigned long uv_undefined(char *str);
+
/* ========================================================================= */
-/* UVH_BAU_DATA_BROADCAST */
+/* UVH_EVENT_OCCURRED0 */
/* ========================================================================= */
-#define UVH_BAU_DATA_BROADCAST 0x61688UL
-#define UVH_BAU_DATA_BROADCAST_32 0x0440
+#define UVH_EVENT_OCCURRED0 0x70000UL
+
+/* UVH common defines*/
+#define UVH_EVENT_OCCURRED0_LB_HCERR_SHFT 0
+#define UVH_EVENT_OCCURRED0_LB_HCERR_MASK 0x0000000000000001UL
+
+/* UVXH common defines */
+#define UVXH_EVENT_OCCURRED0_RH_HCERR_SHFT 2
+#define UVXH_EVENT_OCCURRED0_RH_HCERR_MASK 0x0000000000000004UL
+#define UVXH_EVENT_OCCURRED0_LH0_HCERR_SHFT 3
+#define UVXH_EVENT_OCCURRED0_LH0_HCERR_MASK 0x0000000000000008UL
+#define UVXH_EVENT_OCCURRED0_LH1_HCERR_SHFT 4
+#define UVXH_EVENT_OCCURRED0_LH1_HCERR_MASK 0x0000000000000010UL
+#define UVXH_EVENT_OCCURRED0_GR0_HCERR_SHFT 5
+#define UVXH_EVENT_OCCURRED0_GR0_HCERR_MASK 0x0000000000000020UL
+#define UVXH_EVENT_OCCURRED0_GR1_HCERR_SHFT 6
+#define UVXH_EVENT_OCCURRED0_GR1_HCERR_MASK 0x0000000000000040UL
+#define UVXH_EVENT_OCCURRED0_NI0_HCERR_SHFT 7
+#define UVXH_EVENT_OCCURRED0_NI0_HCERR_MASK 0x0000000000000080UL
+#define UVXH_EVENT_OCCURRED0_NI1_HCERR_SHFT 8
+#define UVXH_EVENT_OCCURRED0_NI1_HCERR_MASK 0x0000000000000100UL
+#define UVXH_EVENT_OCCURRED0_LB_AOERR0_SHFT 9
+#define UVXH_EVENT_OCCURRED0_LB_AOERR0_MASK 0x0000000000000200UL
+#define UVXH_EVENT_OCCURRED0_RH_AOERR0_SHFT 11
+#define UVXH_EVENT_OCCURRED0_RH_AOERR0_MASK 0x0000000000000800UL
+#define UVXH_EVENT_OCCURRED0_LH0_AOERR0_SHFT 12
+#define UVXH_EVENT_OCCURRED0_LH0_AOERR0_MASK 0x0000000000001000UL
+#define UVXH_EVENT_OCCURRED0_LH1_AOERR0_SHFT 13
+#define UVXH_EVENT_OCCURRED0_LH1_AOERR0_MASK 0x0000000000002000UL
+#define UVXH_EVENT_OCCURRED0_GR0_AOERR0_SHFT 14
+#define UVXH_EVENT_OCCURRED0_GR0_AOERR0_MASK 0x0000000000004000UL
+#define UVXH_EVENT_OCCURRED0_GR1_AOERR0_SHFT 15
+#define UVXH_EVENT_OCCURRED0_GR1_AOERR0_MASK 0x0000000000008000UL
+#define UVXH_EVENT_OCCURRED0_XB_AOERR0_SHFT 16
+#define UVXH_EVENT_OCCURRED0_XB_AOERR0_MASK 0x0000000000010000UL
+
+/* UVYH common defines */
+#define UVYH_EVENT_OCCURRED0_KT_HCERR_SHFT 1
+#define UVYH_EVENT_OCCURRED0_KT_HCERR_MASK 0x0000000000000002UL
+#define UVYH_EVENT_OCCURRED0_RH0_HCERR_SHFT 2
+#define UVYH_EVENT_OCCURRED0_RH0_HCERR_MASK 0x0000000000000004UL
+#define UVYH_EVENT_OCCURRED0_RH1_HCERR_SHFT 3
+#define UVYH_EVENT_OCCURRED0_RH1_HCERR_MASK 0x0000000000000008UL
+#define UVYH_EVENT_OCCURRED0_LH0_HCERR_SHFT 4
+#define UVYH_EVENT_OCCURRED0_LH0_HCERR_MASK 0x0000000000000010UL
+#define UVYH_EVENT_OCCURRED0_LH1_HCERR_SHFT 5
+#define UVYH_EVENT_OCCURRED0_LH1_HCERR_MASK 0x0000000000000020UL
+#define UVYH_EVENT_OCCURRED0_LH2_HCERR_SHFT 6
+#define UVYH_EVENT_OCCURRED0_LH2_HCERR_MASK 0x0000000000000040UL
+#define UVYH_EVENT_OCCURRED0_LH3_HCERR_SHFT 7
+#define UVYH_EVENT_OCCURRED0_LH3_HCERR_MASK 0x0000000000000080UL
+#define UVYH_EVENT_OCCURRED0_XB_HCERR_SHFT 8
+#define UVYH_EVENT_OCCURRED0_XB_HCERR_MASK 0x0000000000000100UL
+#define UVYH_EVENT_OCCURRED0_RDM_HCERR_SHFT 9
+#define UVYH_EVENT_OCCURRED0_RDM_HCERR_MASK 0x0000000000000200UL
+#define UVYH_EVENT_OCCURRED0_NI0_HCERR_SHFT 10
+#define UVYH_EVENT_OCCURRED0_NI0_HCERR_MASK 0x0000000000000400UL
+#define UVYH_EVENT_OCCURRED0_NI1_HCERR_SHFT 11
+#define UVYH_EVENT_OCCURRED0_NI1_HCERR_MASK 0x0000000000000800UL
+#define UVYH_EVENT_OCCURRED0_LB_AOERR0_SHFT 12
+#define UVYH_EVENT_OCCURRED0_LB_AOERR0_MASK 0x0000000000001000UL
+#define UVYH_EVENT_OCCURRED0_KT_AOERR0_SHFT 13
+#define UVYH_EVENT_OCCURRED0_KT_AOERR0_MASK 0x0000000000002000UL
+#define UVYH_EVENT_OCCURRED0_RH0_AOERR0_SHFT 14
+#define UVYH_EVENT_OCCURRED0_RH0_AOERR0_MASK 0x0000000000004000UL
+#define UVYH_EVENT_OCCURRED0_RH1_AOERR0_SHFT 15
+#define UVYH_EVENT_OCCURRED0_RH1_AOERR0_MASK 0x0000000000008000UL
+#define UVYH_EVENT_OCCURRED0_LH0_AOERR0_SHFT 16
+#define UVYH_EVENT_OCCURRED0_LH0_AOERR0_MASK 0x0000000000010000UL
+#define UVYH_EVENT_OCCURRED0_LH1_AOERR0_SHFT 17
+#define UVYH_EVENT_OCCURRED0_LH1_AOERR0_MASK 0x0000000000020000UL
+#define UVYH_EVENT_OCCURRED0_LH2_AOERR0_SHFT 18
+#define UVYH_EVENT_OCCURRED0_LH2_AOERR0_MASK 0x0000000000040000UL
+#define UVYH_EVENT_OCCURRED0_LH3_AOERR0_SHFT 19
+#define UVYH_EVENT_OCCURRED0_LH3_AOERR0_MASK 0x0000000000080000UL
+#define UVYH_EVENT_OCCURRED0_XB_AOERR0_SHFT 20
+#define UVYH_EVENT_OCCURRED0_XB_AOERR0_MASK 0x0000000000100000UL
+#define UVYH_EVENT_OCCURRED0_RDM_AOERR0_SHFT 21
+#define UVYH_EVENT_OCCURRED0_RDM_AOERR0_MASK 0x0000000000200000UL
+#define UVYH_EVENT_OCCURRED0_RT0_AOERR0_SHFT 22
+#define UVYH_EVENT_OCCURRED0_RT0_AOERR0_MASK 0x0000000000400000UL
+#define UVYH_EVENT_OCCURRED0_RT1_AOERR0_SHFT 23
+#define UVYH_EVENT_OCCURRED0_RT1_AOERR0_MASK 0x0000000000800000UL
+#define UVYH_EVENT_OCCURRED0_NI0_AOERR0_SHFT 24
+#define UVYH_EVENT_OCCURRED0_NI0_AOERR0_MASK 0x0000000001000000UL
+#define UVYH_EVENT_OCCURRED0_NI1_AOERR0_SHFT 25
+#define UVYH_EVENT_OCCURRED0_NI1_AOERR0_MASK 0x0000000002000000UL
+#define UVYH_EVENT_OCCURRED0_LB_AOERR1_SHFT 26
+#define UVYH_EVENT_OCCURRED0_LB_AOERR1_MASK 0x0000000004000000UL
+#define UVYH_EVENT_OCCURRED0_KT_AOERR1_SHFT 27
+#define UVYH_EVENT_OCCURRED0_KT_AOERR1_MASK 0x0000000008000000UL
+#define UVYH_EVENT_OCCURRED0_RH0_AOERR1_SHFT 28
+#define UVYH_EVENT_OCCURRED0_RH0_AOERR1_MASK 0x0000000010000000UL
+#define UVYH_EVENT_OCCURRED0_RH1_AOERR1_SHFT 29
+#define UVYH_EVENT_OCCURRED0_RH1_AOERR1_MASK 0x0000000020000000UL
+#define UVYH_EVENT_OCCURRED0_LH0_AOERR1_SHFT 30
+#define UVYH_EVENT_OCCURRED0_LH0_AOERR1_MASK 0x0000000040000000UL
+#define UVYH_EVENT_OCCURRED0_LH1_AOERR1_SHFT 31
+#define UVYH_EVENT_OCCURRED0_LH1_AOERR1_MASK 0x0000000080000000UL
+#define UVYH_EVENT_OCCURRED0_LH2_AOERR1_SHFT 32
+#define UVYH_EVENT_OCCURRED0_LH2_AOERR1_MASK 0x0000000100000000UL
+#define UVYH_EVENT_OCCURRED0_LH3_AOERR1_SHFT 33
+#define UVYH_EVENT_OCCURRED0_LH3_AOERR1_MASK 0x0000000200000000UL
+#define UVYH_EVENT_OCCURRED0_XB_AOERR1_SHFT 34
+#define UVYH_EVENT_OCCURRED0_XB_AOERR1_MASK 0x0000000400000000UL
+#define UVYH_EVENT_OCCURRED0_RDM_AOERR1_SHFT 35
+#define UVYH_EVENT_OCCURRED0_RDM_AOERR1_MASK 0x0000000800000000UL
+#define UVYH_EVENT_OCCURRED0_RT0_AOERR1_SHFT 36
+#define UVYH_EVENT_OCCURRED0_RT0_AOERR1_MASK 0x0000001000000000UL
+#define UVYH_EVENT_OCCURRED0_RT1_AOERR1_SHFT 37
+#define UVYH_EVENT_OCCURRED0_RT1_AOERR1_MASK 0x0000002000000000UL
+#define UVYH_EVENT_OCCURRED0_NI0_AOERR1_SHFT 38
+#define UVYH_EVENT_OCCURRED0_NI0_AOERR1_MASK 0x0000004000000000UL
+#define UVYH_EVENT_OCCURRED0_NI1_AOERR1_SHFT 39
+#define UVYH_EVENT_OCCURRED0_NI1_AOERR1_MASK 0x0000008000000000UL
+#define UVYH_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_SHFT 40
+#define UVYH_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_MASK 0x0000010000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_0_SHFT 41
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_0_MASK 0x0000020000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_1_SHFT 42
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_1_MASK 0x0000040000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_2_SHFT 43
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_2_MASK 0x0000080000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_3_SHFT 44
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_3_MASK 0x0000100000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_4_SHFT 45
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_4_MASK 0x0000200000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_5_SHFT 46
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_5_MASK 0x0000400000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_6_SHFT 47
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_6_MASK 0x0000800000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_7_SHFT 48
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_7_MASK 0x0001000000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_8_SHFT 49
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_8_MASK 0x0002000000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_9_SHFT 50
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_9_MASK 0x0004000000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_10_SHFT 51
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_10_MASK 0x0008000000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_11_SHFT 52
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_11_MASK 0x0010000000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_12_SHFT 53
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_12_MASK 0x0020000000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_13_SHFT 54
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_13_MASK 0x0040000000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_14_SHFT 55
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_14_MASK 0x0080000000000000UL
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_15_SHFT 56
+#define UVYH_EVENT_OCCURRED0_LB_IRQ_INT_15_MASK 0x0100000000000000UL
+#define UVYH_EVENT_OCCURRED0_L1_NMI_INT_SHFT 57
+#define UVYH_EVENT_OCCURRED0_L1_NMI_INT_MASK 0x0200000000000000UL
+#define UVYH_EVENT_OCCURRED0_STOP_CLOCK_SHFT 58
+#define UVYH_EVENT_OCCURRED0_STOP_CLOCK_MASK 0x0400000000000000UL
+#define UVYH_EVENT_OCCURRED0_ASIC_TO_L1_SHFT 59
+#define UVYH_EVENT_OCCURRED0_ASIC_TO_L1_MASK 0x0800000000000000UL
+#define UVYH_EVENT_OCCURRED0_L1_TO_ASIC_SHFT 60
+#define UVYH_EVENT_OCCURRED0_L1_TO_ASIC_MASK 0x1000000000000000UL
+#define UVYH_EVENT_OCCURRED0_LA_SEQ_TRIGGER_SHFT 61
+#define UVYH_EVENT_OCCURRED0_LA_SEQ_TRIGGER_MASK 0x2000000000000000UL
-#define UVH_BAU_DATA_BROADCAST_ENABLE_SHFT 0
-#define UVH_BAU_DATA_BROADCAST_ENABLE_MASK 0x0000000000000001UL
+/* UV4 unique defines */
+#define UV4H_EVENT_OCCURRED0_KT_HCERR_SHFT 1
+#define UV4H_EVENT_OCCURRED0_KT_HCERR_MASK 0x0000000000000002UL
+#define UV4H_EVENT_OCCURRED0_KT_AOERR0_SHFT 10
+#define UV4H_EVENT_OCCURRED0_KT_AOERR0_MASK 0x0000000000000400UL
+#define UV4H_EVENT_OCCURRED0_RTQ0_AOERR0_SHFT 17
+#define UV4H_EVENT_OCCURRED0_RTQ0_AOERR0_MASK 0x0000000000020000UL
+#define UV4H_EVENT_OCCURRED0_RTQ1_AOERR0_SHFT 18
+#define UV4H_EVENT_OCCURRED0_RTQ1_AOERR0_MASK 0x0000000000040000UL
+#define UV4H_EVENT_OCCURRED0_RTQ2_AOERR0_SHFT 19
+#define UV4H_EVENT_OCCURRED0_RTQ2_AOERR0_MASK 0x0000000000080000UL
+#define UV4H_EVENT_OCCURRED0_RTQ3_AOERR0_SHFT 20
+#define UV4H_EVENT_OCCURRED0_RTQ3_AOERR0_MASK 0x0000000000100000UL
+#define UV4H_EVENT_OCCURRED0_NI0_AOERR0_SHFT 21
+#define UV4H_EVENT_OCCURRED0_NI0_AOERR0_MASK 0x0000000000200000UL
+#define UV4H_EVENT_OCCURRED0_NI1_AOERR0_SHFT 22
+#define UV4H_EVENT_OCCURRED0_NI1_AOERR0_MASK 0x0000000000400000UL
+#define UV4H_EVENT_OCCURRED0_LB_AOERR1_SHFT 23
+#define UV4H_EVENT_OCCURRED0_LB_AOERR1_MASK 0x0000000000800000UL
+#define UV4H_EVENT_OCCURRED0_KT_AOERR1_SHFT 24
+#define UV4H_EVENT_OCCURRED0_KT_AOERR1_MASK 0x0000000001000000UL
+#define UV4H_EVENT_OCCURRED0_RH_AOERR1_SHFT 25
+#define UV4H_EVENT_OCCURRED0_RH_AOERR1_MASK 0x0000000002000000UL
+#define UV4H_EVENT_OCCURRED0_LH0_AOERR1_SHFT 26
+#define UV4H_EVENT_OCCURRED0_LH0_AOERR1_MASK 0x0000000004000000UL
+#define UV4H_EVENT_OCCURRED0_LH1_AOERR1_SHFT 27
+#define UV4H_EVENT_OCCURRED0_LH1_AOERR1_MASK 0x0000000008000000UL
+#define UV4H_EVENT_OCCURRED0_GR0_AOERR1_SHFT 28
+#define UV4H_EVENT_OCCURRED0_GR0_AOERR1_MASK 0x0000000010000000UL
+#define UV4H_EVENT_OCCURRED0_GR1_AOERR1_SHFT 29
+#define UV4H_EVENT_OCCURRED0_GR1_AOERR1_MASK 0x0000000020000000UL
+#define UV4H_EVENT_OCCURRED0_XB_AOERR1_SHFT 30
+#define UV4H_EVENT_OCCURRED0_XB_AOERR1_MASK 0x0000000040000000UL
+#define UV4H_EVENT_OCCURRED0_RTQ0_AOERR1_SHFT 31
+#define UV4H_EVENT_OCCURRED0_RTQ0_AOERR1_MASK 0x0000000080000000UL
+#define UV4H_EVENT_OCCURRED0_RTQ1_AOERR1_SHFT 32
+#define UV4H_EVENT_OCCURRED0_RTQ1_AOERR1_MASK 0x0000000100000000UL
+#define UV4H_EVENT_OCCURRED0_RTQ2_AOERR1_SHFT 33
+#define UV4H_EVENT_OCCURRED0_RTQ2_AOERR1_MASK 0x0000000200000000UL
+#define UV4H_EVENT_OCCURRED0_RTQ3_AOERR1_SHFT 34
+#define UV4H_EVENT_OCCURRED0_RTQ3_AOERR1_MASK 0x0000000400000000UL
+#define UV4H_EVENT_OCCURRED0_NI0_AOERR1_SHFT 35
+#define UV4H_EVENT_OCCURRED0_NI0_AOERR1_MASK 0x0000000800000000UL
+#define UV4H_EVENT_OCCURRED0_NI1_AOERR1_SHFT 36
+#define UV4H_EVENT_OCCURRED0_NI1_AOERR1_MASK 0x0000001000000000UL
+#define UV4H_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_SHFT 37
+#define UV4H_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_MASK 0x0000002000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_0_SHFT 38
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_0_MASK 0x0000004000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_1_SHFT 39
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_1_MASK 0x0000008000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_2_SHFT 40
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_2_MASK 0x0000010000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_3_SHFT 41
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_3_MASK 0x0000020000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_4_SHFT 42
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_4_MASK 0x0000040000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_5_SHFT 43
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_5_MASK 0x0000080000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_6_SHFT 44
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_6_MASK 0x0000100000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_7_SHFT 45
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_7_MASK 0x0000200000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_8_SHFT 46
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_8_MASK 0x0000400000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_9_SHFT 47
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_9_MASK 0x0000800000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_10_SHFT 48
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_10_MASK 0x0001000000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_11_SHFT 49
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_11_MASK 0x0002000000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_12_SHFT 50
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_12_MASK 0x0004000000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_13_SHFT 51
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_13_MASK 0x0008000000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_14_SHFT 52
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_14_MASK 0x0010000000000000UL
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_15_SHFT 53
+#define UV4H_EVENT_OCCURRED0_LB_IRQ_INT_15_MASK 0x0020000000000000UL
+#define UV4H_EVENT_OCCURRED0_L1_NMI_INT_SHFT 54
+#define UV4H_EVENT_OCCURRED0_L1_NMI_INT_MASK 0x0040000000000000UL
+#define UV4H_EVENT_OCCURRED0_STOP_CLOCK_SHFT 55
+#define UV4H_EVENT_OCCURRED0_STOP_CLOCK_MASK 0x0080000000000000UL
+#define UV4H_EVENT_OCCURRED0_ASIC_TO_L1_SHFT 56
+#define UV4H_EVENT_OCCURRED0_ASIC_TO_L1_MASK 0x0100000000000000UL
+#define UV4H_EVENT_OCCURRED0_L1_TO_ASIC_SHFT 57
+#define UV4H_EVENT_OCCURRED0_L1_TO_ASIC_MASK 0x0200000000000000UL
+#define UV4H_EVENT_OCCURRED0_LA_SEQ_TRIGGER_SHFT 58
+#define UV4H_EVENT_OCCURRED0_LA_SEQ_TRIGGER_MASK 0x0400000000000000UL
+#define UV4H_EVENT_OCCURRED0_IPI_INT_SHFT 59
+#define UV4H_EVENT_OCCURRED0_IPI_INT_MASK 0x0800000000000000UL
+#define UV4H_EVENT_OCCURRED0_EXTIO_INT0_SHFT 60
+#define UV4H_EVENT_OCCURRED0_EXTIO_INT0_MASK 0x1000000000000000UL
+#define UV4H_EVENT_OCCURRED0_EXTIO_INT1_SHFT 61
+#define UV4H_EVENT_OCCURRED0_EXTIO_INT1_MASK 0x2000000000000000UL
+#define UV4H_EVENT_OCCURRED0_EXTIO_INT2_SHFT 62
+#define UV4H_EVENT_OCCURRED0_EXTIO_INT2_MASK 0x4000000000000000UL
+#define UV4H_EVENT_OCCURRED0_EXTIO_INT3_SHFT 63
+#define UV4H_EVENT_OCCURRED0_EXTIO_INT3_MASK 0x8000000000000000UL
+
+/* UV3 unique defines */
+#define UV3H_EVENT_OCCURRED0_QP_HCERR_SHFT 1
+#define UV3H_EVENT_OCCURRED0_QP_HCERR_MASK 0x0000000000000002UL
+#define UV3H_EVENT_OCCURRED0_QP_AOERR0_SHFT 10
+#define UV3H_EVENT_OCCURRED0_QP_AOERR0_MASK 0x0000000000000400UL
+#define UV3H_EVENT_OCCURRED0_RT_AOERR0_SHFT 17
+#define UV3H_EVENT_OCCURRED0_RT_AOERR0_MASK 0x0000000000020000UL
+#define UV3H_EVENT_OCCURRED0_NI0_AOERR0_SHFT 18
+#define UV3H_EVENT_OCCURRED0_NI0_AOERR0_MASK 0x0000000000040000UL
+#define UV3H_EVENT_OCCURRED0_NI1_AOERR0_SHFT 19
+#define UV3H_EVENT_OCCURRED0_NI1_AOERR0_MASK 0x0000000000080000UL
+#define UV3H_EVENT_OCCURRED0_LB_AOERR1_SHFT 20
+#define UV3H_EVENT_OCCURRED0_LB_AOERR1_MASK 0x0000000000100000UL
+#define UV3H_EVENT_OCCURRED0_QP_AOERR1_SHFT 21
+#define UV3H_EVENT_OCCURRED0_QP_AOERR1_MASK 0x0000000000200000UL
+#define UV3H_EVENT_OCCURRED0_RH_AOERR1_SHFT 22
+#define UV3H_EVENT_OCCURRED0_RH_AOERR1_MASK 0x0000000000400000UL
+#define UV3H_EVENT_OCCURRED0_LH0_AOERR1_SHFT 23
+#define UV3H_EVENT_OCCURRED0_LH0_AOERR1_MASK 0x0000000000800000UL
+#define UV3H_EVENT_OCCURRED0_LH1_AOERR1_SHFT 24
+#define UV3H_EVENT_OCCURRED0_LH1_AOERR1_MASK 0x0000000001000000UL
+#define UV3H_EVENT_OCCURRED0_GR0_AOERR1_SHFT 25
+#define UV3H_EVENT_OCCURRED0_GR0_AOERR1_MASK 0x0000000002000000UL
+#define UV3H_EVENT_OCCURRED0_GR1_AOERR1_SHFT 26
+#define UV3H_EVENT_OCCURRED0_GR1_AOERR1_MASK 0x0000000004000000UL
+#define UV3H_EVENT_OCCURRED0_XB_AOERR1_SHFT 27
+#define UV3H_EVENT_OCCURRED0_XB_AOERR1_MASK 0x0000000008000000UL
+#define UV3H_EVENT_OCCURRED0_RT_AOERR1_SHFT 28
+#define UV3H_EVENT_OCCURRED0_RT_AOERR1_MASK 0x0000000010000000UL
+#define UV3H_EVENT_OCCURRED0_NI0_AOERR1_SHFT 29
+#define UV3H_EVENT_OCCURRED0_NI0_AOERR1_MASK 0x0000000020000000UL
+#define UV3H_EVENT_OCCURRED0_NI1_AOERR1_SHFT 30
+#define UV3H_EVENT_OCCURRED0_NI1_AOERR1_MASK 0x0000000040000000UL
+#define UV3H_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_SHFT 31
+#define UV3H_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_MASK 0x0000000080000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_0_SHFT 32
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_0_MASK 0x0000000100000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_1_SHFT 33
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_1_MASK 0x0000000200000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_2_SHFT 34
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_2_MASK 0x0000000400000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_3_SHFT 35
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_3_MASK 0x0000000800000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_4_SHFT 36
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_4_MASK 0x0000001000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_5_SHFT 37
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_5_MASK 0x0000002000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_6_SHFT 38
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_6_MASK 0x0000004000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_7_SHFT 39
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_7_MASK 0x0000008000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_8_SHFT 40
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_8_MASK 0x0000010000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_9_SHFT 41
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_9_MASK 0x0000020000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_10_SHFT 42
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_10_MASK 0x0000040000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_11_SHFT 43
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_11_MASK 0x0000080000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_12_SHFT 44
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_12_MASK 0x0000100000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_13_SHFT 45
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_13_MASK 0x0000200000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_14_SHFT 46
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_14_MASK 0x0000400000000000UL
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_15_SHFT 47
+#define UV3H_EVENT_OCCURRED0_LB_IRQ_INT_15_MASK 0x0000800000000000UL
+#define UV3H_EVENT_OCCURRED0_L1_NMI_INT_SHFT 48
+#define UV3H_EVENT_OCCURRED0_L1_NMI_INT_MASK 0x0001000000000000UL
+#define UV3H_EVENT_OCCURRED0_STOP_CLOCK_SHFT 49
+#define UV3H_EVENT_OCCURRED0_STOP_CLOCK_MASK 0x0002000000000000UL
+#define UV3H_EVENT_OCCURRED0_ASIC_TO_L1_SHFT 50
+#define UV3H_EVENT_OCCURRED0_ASIC_TO_L1_MASK 0x0004000000000000UL
+#define UV3H_EVENT_OCCURRED0_L1_TO_ASIC_SHFT 51
+#define UV3H_EVENT_OCCURRED0_L1_TO_ASIC_MASK 0x0008000000000000UL
+#define UV3H_EVENT_OCCURRED0_LA_SEQ_TRIGGER_SHFT 52
+#define UV3H_EVENT_OCCURRED0_LA_SEQ_TRIGGER_MASK 0x0010000000000000UL
+#define UV3H_EVENT_OCCURRED0_IPI_INT_SHFT 53
+#define UV3H_EVENT_OCCURRED0_IPI_INT_MASK 0x0020000000000000UL
+#define UV3H_EVENT_OCCURRED0_EXTIO_INT0_SHFT 54
+#define UV3H_EVENT_OCCURRED0_EXTIO_INT0_MASK 0x0040000000000000UL
+#define UV3H_EVENT_OCCURRED0_EXTIO_INT1_SHFT 55
+#define UV3H_EVENT_OCCURRED0_EXTIO_INT1_MASK 0x0080000000000000UL
+#define UV3H_EVENT_OCCURRED0_EXTIO_INT2_SHFT 56
+#define UV3H_EVENT_OCCURRED0_EXTIO_INT2_MASK 0x0100000000000000UL
+#define UV3H_EVENT_OCCURRED0_EXTIO_INT3_SHFT 57
+#define UV3H_EVENT_OCCURRED0_EXTIO_INT3_MASK 0x0200000000000000UL
+#define UV3H_EVENT_OCCURRED0_PROFILE_INT_SHFT 58
+#define UV3H_EVENT_OCCURRED0_PROFILE_INT_MASK 0x0400000000000000UL
+
+/* UV2 unique defines */
+#define UV2H_EVENT_OCCURRED0_QP_HCERR_SHFT 1
+#define UV2H_EVENT_OCCURRED0_QP_HCERR_MASK 0x0000000000000002UL
+#define UV2H_EVENT_OCCURRED0_QP_AOERR0_SHFT 10
+#define UV2H_EVENT_OCCURRED0_QP_AOERR0_MASK 0x0000000000000400UL
+#define UV2H_EVENT_OCCURRED0_RT_AOERR0_SHFT 17
+#define UV2H_EVENT_OCCURRED0_RT_AOERR0_MASK 0x0000000000020000UL
+#define UV2H_EVENT_OCCURRED0_NI0_AOERR0_SHFT 18
+#define UV2H_EVENT_OCCURRED0_NI0_AOERR0_MASK 0x0000000000040000UL
+#define UV2H_EVENT_OCCURRED0_NI1_AOERR0_SHFT 19
+#define UV2H_EVENT_OCCURRED0_NI1_AOERR0_MASK 0x0000000000080000UL
+#define UV2H_EVENT_OCCURRED0_LB_AOERR1_SHFT 20
+#define UV2H_EVENT_OCCURRED0_LB_AOERR1_MASK 0x0000000000100000UL
+#define UV2H_EVENT_OCCURRED0_QP_AOERR1_SHFT 21
+#define UV2H_EVENT_OCCURRED0_QP_AOERR1_MASK 0x0000000000200000UL
+#define UV2H_EVENT_OCCURRED0_RH_AOERR1_SHFT 22
+#define UV2H_EVENT_OCCURRED0_RH_AOERR1_MASK 0x0000000000400000UL
+#define UV2H_EVENT_OCCURRED0_LH0_AOERR1_SHFT 23
+#define UV2H_EVENT_OCCURRED0_LH0_AOERR1_MASK 0x0000000000800000UL
+#define UV2H_EVENT_OCCURRED0_LH1_AOERR1_SHFT 24
+#define UV2H_EVENT_OCCURRED0_LH1_AOERR1_MASK 0x0000000001000000UL
+#define UV2H_EVENT_OCCURRED0_GR0_AOERR1_SHFT 25
+#define UV2H_EVENT_OCCURRED0_GR0_AOERR1_MASK 0x0000000002000000UL
+#define UV2H_EVENT_OCCURRED0_GR1_AOERR1_SHFT 26
+#define UV2H_EVENT_OCCURRED0_GR1_AOERR1_MASK 0x0000000004000000UL
+#define UV2H_EVENT_OCCURRED0_XB_AOERR1_SHFT 27
+#define UV2H_EVENT_OCCURRED0_XB_AOERR1_MASK 0x0000000008000000UL
+#define UV2H_EVENT_OCCURRED0_RT_AOERR1_SHFT 28
+#define UV2H_EVENT_OCCURRED0_RT_AOERR1_MASK 0x0000000010000000UL
+#define UV2H_EVENT_OCCURRED0_NI0_AOERR1_SHFT 29
+#define UV2H_EVENT_OCCURRED0_NI0_AOERR1_MASK 0x0000000020000000UL
+#define UV2H_EVENT_OCCURRED0_NI1_AOERR1_SHFT 30
+#define UV2H_EVENT_OCCURRED0_NI1_AOERR1_MASK 0x0000000040000000UL
+#define UV2H_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_SHFT 31
+#define UV2H_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_MASK 0x0000000080000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_0_SHFT 32
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_0_MASK 0x0000000100000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_1_SHFT 33
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_1_MASK 0x0000000200000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_2_SHFT 34
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_2_MASK 0x0000000400000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_3_SHFT 35
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_3_MASK 0x0000000800000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_4_SHFT 36
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_4_MASK 0x0000001000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_5_SHFT 37
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_5_MASK 0x0000002000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_6_SHFT 38
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_6_MASK 0x0000004000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_7_SHFT 39
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_7_MASK 0x0000008000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_8_SHFT 40
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_8_MASK 0x0000010000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_9_SHFT 41
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_9_MASK 0x0000020000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_10_SHFT 42
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_10_MASK 0x0000040000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_11_SHFT 43
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_11_MASK 0x0000080000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_12_SHFT 44
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_12_MASK 0x0000100000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_13_SHFT 45
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_13_MASK 0x0000200000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_14_SHFT 46
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_14_MASK 0x0000400000000000UL
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_15_SHFT 47
+#define UV2H_EVENT_OCCURRED0_LB_IRQ_INT_15_MASK 0x0000800000000000UL
+#define UV2H_EVENT_OCCURRED0_L1_NMI_INT_SHFT 48
+#define UV2H_EVENT_OCCURRED0_L1_NMI_INT_MASK 0x0001000000000000UL
+#define UV2H_EVENT_OCCURRED0_STOP_CLOCK_SHFT 49
+#define UV2H_EVENT_OCCURRED0_STOP_CLOCK_MASK 0x0002000000000000UL
+#define UV2H_EVENT_OCCURRED0_ASIC_TO_L1_SHFT 50
+#define UV2H_EVENT_OCCURRED0_ASIC_TO_L1_MASK 0x0004000000000000UL
+#define UV2H_EVENT_OCCURRED0_L1_TO_ASIC_SHFT 51
+#define UV2H_EVENT_OCCURRED0_L1_TO_ASIC_MASK 0x0008000000000000UL
+#define UV2H_EVENT_OCCURRED0_LA_SEQ_TRIGGER_SHFT 52
+#define UV2H_EVENT_OCCURRED0_LA_SEQ_TRIGGER_MASK 0x0010000000000000UL
+#define UV2H_EVENT_OCCURRED0_IPI_INT_SHFT 53
+#define UV2H_EVENT_OCCURRED0_IPI_INT_MASK 0x0020000000000000UL
+#define UV2H_EVENT_OCCURRED0_EXTIO_INT0_SHFT 54
+#define UV2H_EVENT_OCCURRED0_EXTIO_INT0_MASK 0x0040000000000000UL
+#define UV2H_EVENT_OCCURRED0_EXTIO_INT1_SHFT 55
+#define UV2H_EVENT_OCCURRED0_EXTIO_INT1_MASK 0x0080000000000000UL
+#define UV2H_EVENT_OCCURRED0_EXTIO_INT2_SHFT 56
+#define UV2H_EVENT_OCCURRED0_EXTIO_INT2_MASK 0x0100000000000000UL
+#define UV2H_EVENT_OCCURRED0_EXTIO_INT3_SHFT 57
+#define UV2H_EVENT_OCCURRED0_EXTIO_INT3_MASK 0x0200000000000000UL
+#define UV2H_EVENT_OCCURRED0_PROFILE_INT_SHFT 58
+#define UV2H_EVENT_OCCURRED0_PROFILE_INT_MASK 0x0400000000000000UL
+
+#define UVH_EVENT_OCCURRED0_EXTIO_INT0_MASK ( \
+ is_uv(UV4) ? 0x1000000000000000UL : \
+ is_uv(UV3) ? 0x0040000000000000UL : \
+ is_uv(UV2) ? 0x0040000000000000UL : \
+ 0)
+#define UVH_EVENT_OCCURRED0_EXTIO_INT0_SHFT ( \
+ is_uv(UV4) ? 60 : \
+ is_uv(UV3) ? 54 : \
+ is_uv(UV2) ? 54 : \
+ -1)
+
+union uvh_event_occurred0_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_event_occurred0_s {
+ unsigned long lb_hcerr:1; /* RW */
+ unsigned long rsvd_1_63:63;
+ } s;
-union uvh_bau_data_broadcast_u {
- unsigned long v;
- struct uvh_bau_data_broadcast_s {
- unsigned long enable : 1; /* RW */
- unsigned long rsvd_1_63: 63; /* */
- } s;
+ /* UVXH common struct */
+ struct uvxh_event_occurred0_s {
+ unsigned long lb_hcerr:1; /* RW */
+ unsigned long rsvd_1:1;
+ unsigned long rh_hcerr:1; /* RW */
+ unsigned long lh0_hcerr:1; /* RW */
+ unsigned long lh1_hcerr:1; /* RW */
+ unsigned long gr0_hcerr:1; /* RW */
+ unsigned long gr1_hcerr:1; /* RW */
+ unsigned long ni0_hcerr:1; /* RW */
+ unsigned long ni1_hcerr:1; /* RW */
+ unsigned long lb_aoerr0:1; /* RW */
+ unsigned long rsvd_10:1;
+ unsigned long rh_aoerr0:1; /* RW */
+ unsigned long lh0_aoerr0:1; /* RW */
+ unsigned long lh1_aoerr0:1; /* RW */
+ unsigned long gr0_aoerr0:1; /* RW */
+ unsigned long gr1_aoerr0:1; /* RW */
+ unsigned long xb_aoerr0:1; /* RW */
+ unsigned long rsvd_17_63:47;
+ } sx;
+
+ /* UVYH common struct */
+ struct uvyh_event_occurred0_s {
+ unsigned long lb_hcerr:1; /* RW */
+ unsigned long kt_hcerr:1; /* RW */
+ unsigned long rh0_hcerr:1; /* RW */
+ unsigned long rh1_hcerr:1; /* RW */
+ unsigned long lh0_hcerr:1; /* RW */
+ unsigned long lh1_hcerr:1; /* RW */
+ unsigned long lh2_hcerr:1; /* RW */
+ unsigned long lh3_hcerr:1; /* RW */
+ unsigned long xb_hcerr:1; /* RW */
+ unsigned long rdm_hcerr:1; /* RW */
+ unsigned long ni0_hcerr:1; /* RW */
+ unsigned long ni1_hcerr:1; /* RW */
+ unsigned long lb_aoerr0:1; /* RW */
+ unsigned long kt_aoerr0:1; /* RW */
+ unsigned long rh0_aoerr0:1; /* RW */
+ unsigned long rh1_aoerr0:1; /* RW */
+ unsigned long lh0_aoerr0:1; /* RW */
+ unsigned long lh1_aoerr0:1; /* RW */
+ unsigned long lh2_aoerr0:1; /* RW */
+ unsigned long lh3_aoerr0:1; /* RW */
+ unsigned long xb_aoerr0:1; /* RW */
+ unsigned long rdm_aoerr0:1; /* RW */
+ unsigned long rt0_aoerr0:1; /* RW */
+ unsigned long rt1_aoerr0:1; /* RW */
+ unsigned long ni0_aoerr0:1; /* RW */
+ unsigned long ni1_aoerr0:1; /* RW */
+ unsigned long lb_aoerr1:1; /* RW */
+ unsigned long kt_aoerr1:1; /* RW */
+ unsigned long rh0_aoerr1:1; /* RW */
+ unsigned long rh1_aoerr1:1; /* RW */
+ unsigned long lh0_aoerr1:1; /* RW */
+ unsigned long lh1_aoerr1:1; /* RW */
+ unsigned long lh2_aoerr1:1; /* RW */
+ unsigned long lh3_aoerr1:1; /* RW */
+ unsigned long xb_aoerr1:1; /* RW */
+ unsigned long rdm_aoerr1:1; /* RW */
+ unsigned long rt0_aoerr1:1; /* RW */
+ unsigned long rt1_aoerr1:1; /* RW */
+ unsigned long ni0_aoerr1:1; /* RW */
+ unsigned long ni1_aoerr1:1; /* RW */
+ unsigned long system_shutdown_int:1; /* RW */
+ unsigned long lb_irq_int_0:1; /* RW */
+ unsigned long lb_irq_int_1:1; /* RW */
+ unsigned long lb_irq_int_2:1; /* RW */
+ unsigned long lb_irq_int_3:1; /* RW */
+ unsigned long lb_irq_int_4:1; /* RW */
+ unsigned long lb_irq_int_5:1; /* RW */
+ unsigned long lb_irq_int_6:1; /* RW */
+ unsigned long lb_irq_int_7:1; /* RW */
+ unsigned long lb_irq_int_8:1; /* RW */
+ unsigned long lb_irq_int_9:1; /* RW */
+ unsigned long lb_irq_int_10:1; /* RW */
+ unsigned long lb_irq_int_11:1; /* RW */
+ unsigned long lb_irq_int_12:1; /* RW */
+ unsigned long lb_irq_int_13:1; /* RW */
+ unsigned long lb_irq_int_14:1; /* RW */
+ unsigned long lb_irq_int_15:1; /* RW */
+ unsigned long l1_nmi_int:1; /* RW */
+ unsigned long stop_clock:1; /* RW */
+ unsigned long asic_to_l1:1; /* RW */
+ unsigned long l1_to_asic:1; /* RW */
+ unsigned long la_seq_trigger:1; /* RW */
+ unsigned long rsvd_62_63:2;
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_event_occurred0_s {
+ unsigned long lb_hcerr:1; /* RW */
+ unsigned long kt_hcerr:1; /* RW */
+ unsigned long rh0_hcerr:1; /* RW */
+ unsigned long rh1_hcerr:1; /* RW */
+ unsigned long lh0_hcerr:1; /* RW */
+ unsigned long lh1_hcerr:1; /* RW */
+ unsigned long lh2_hcerr:1; /* RW */
+ unsigned long lh3_hcerr:1; /* RW */
+ unsigned long xb_hcerr:1; /* RW */
+ unsigned long rdm_hcerr:1; /* RW */
+ unsigned long ni0_hcerr:1; /* RW */
+ unsigned long ni1_hcerr:1; /* RW */
+ unsigned long lb_aoerr0:1; /* RW */
+ unsigned long kt_aoerr0:1; /* RW */
+ unsigned long rh0_aoerr0:1; /* RW */
+ unsigned long rh1_aoerr0:1; /* RW */
+ unsigned long lh0_aoerr0:1; /* RW */
+ unsigned long lh1_aoerr0:1; /* RW */
+ unsigned long lh2_aoerr0:1; /* RW */
+ unsigned long lh3_aoerr0:1; /* RW */
+ unsigned long xb_aoerr0:1; /* RW */
+ unsigned long rdm_aoerr0:1; /* RW */
+ unsigned long rt0_aoerr0:1; /* RW */
+ unsigned long rt1_aoerr0:1; /* RW */
+ unsigned long ni0_aoerr0:1; /* RW */
+ unsigned long ni1_aoerr0:1; /* RW */
+ unsigned long lb_aoerr1:1; /* RW */
+ unsigned long kt_aoerr1:1; /* RW */
+ unsigned long rh0_aoerr1:1; /* RW */
+ unsigned long rh1_aoerr1:1; /* RW */
+ unsigned long lh0_aoerr1:1; /* RW */
+ unsigned long lh1_aoerr1:1; /* RW */
+ unsigned long lh2_aoerr1:1; /* RW */
+ unsigned long lh3_aoerr1:1; /* RW */
+ unsigned long xb_aoerr1:1; /* RW */
+ unsigned long rdm_aoerr1:1; /* RW */
+ unsigned long rt0_aoerr1:1; /* RW */
+ unsigned long rt1_aoerr1:1; /* RW */
+ unsigned long ni0_aoerr1:1; /* RW */
+ unsigned long ni1_aoerr1:1; /* RW */
+ unsigned long system_shutdown_int:1; /* RW */
+ unsigned long lb_irq_int_0:1; /* RW */
+ unsigned long lb_irq_int_1:1; /* RW */
+ unsigned long lb_irq_int_2:1; /* RW */
+ unsigned long lb_irq_int_3:1; /* RW */
+ unsigned long lb_irq_int_4:1; /* RW */
+ unsigned long lb_irq_int_5:1; /* RW */
+ unsigned long lb_irq_int_6:1; /* RW */
+ unsigned long lb_irq_int_7:1; /* RW */
+ unsigned long lb_irq_int_8:1; /* RW */
+ unsigned long lb_irq_int_9:1; /* RW */
+ unsigned long lb_irq_int_10:1; /* RW */
+ unsigned long lb_irq_int_11:1; /* RW */
+ unsigned long lb_irq_int_12:1; /* RW */
+ unsigned long lb_irq_int_13:1; /* RW */
+ unsigned long lb_irq_int_14:1; /* RW */
+ unsigned long lb_irq_int_15:1; /* RW */
+ unsigned long l1_nmi_int:1; /* RW */
+ unsigned long stop_clock:1; /* RW */
+ unsigned long asic_to_l1:1; /* RW */
+ unsigned long l1_to_asic:1; /* RW */
+ unsigned long la_seq_trigger:1; /* RW */
+ unsigned long rsvd_62_63:2;
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_event_occurred0_s {
+ unsigned long lb_hcerr:1; /* RW */
+ unsigned long kt_hcerr:1; /* RW */
+ unsigned long rh_hcerr:1; /* RW */
+ unsigned long lh0_hcerr:1; /* RW */
+ unsigned long lh1_hcerr:1; /* RW */
+ unsigned long gr0_hcerr:1; /* RW */
+ unsigned long gr1_hcerr:1; /* RW */
+ unsigned long ni0_hcerr:1; /* RW */
+ unsigned long ni1_hcerr:1; /* RW */
+ unsigned long lb_aoerr0:1; /* RW */
+ unsigned long kt_aoerr0:1; /* RW */
+ unsigned long rh_aoerr0:1; /* RW */
+ unsigned long lh0_aoerr0:1; /* RW */
+ unsigned long lh1_aoerr0:1; /* RW */
+ unsigned long gr0_aoerr0:1; /* RW */
+ unsigned long gr1_aoerr0:1; /* RW */
+ unsigned long xb_aoerr0:1; /* RW */
+ unsigned long rtq0_aoerr0:1; /* RW */
+ unsigned long rtq1_aoerr0:1; /* RW */
+ unsigned long rtq2_aoerr0:1; /* RW */
+ unsigned long rtq3_aoerr0:1; /* RW */
+ unsigned long ni0_aoerr0:1; /* RW */
+ unsigned long ni1_aoerr0:1; /* RW */
+ unsigned long lb_aoerr1:1; /* RW */
+ unsigned long kt_aoerr1:1; /* RW */
+ unsigned long rh_aoerr1:1; /* RW */
+ unsigned long lh0_aoerr1:1; /* RW */
+ unsigned long lh1_aoerr1:1; /* RW */
+ unsigned long gr0_aoerr1:1; /* RW */
+ unsigned long gr1_aoerr1:1; /* RW */
+ unsigned long xb_aoerr1:1; /* RW */
+ unsigned long rtq0_aoerr1:1; /* RW */
+ unsigned long rtq1_aoerr1:1; /* RW */
+ unsigned long rtq2_aoerr1:1; /* RW */
+ unsigned long rtq3_aoerr1:1; /* RW */
+ unsigned long ni0_aoerr1:1; /* RW */
+ unsigned long ni1_aoerr1:1; /* RW */
+ unsigned long system_shutdown_int:1; /* RW */
+ unsigned long lb_irq_int_0:1; /* RW */
+ unsigned long lb_irq_int_1:1; /* RW */
+ unsigned long lb_irq_int_2:1; /* RW */
+ unsigned long lb_irq_int_3:1; /* RW */
+ unsigned long lb_irq_int_4:1; /* RW */
+ unsigned long lb_irq_int_5:1; /* RW */
+ unsigned long lb_irq_int_6:1; /* RW */
+ unsigned long lb_irq_int_7:1; /* RW */
+ unsigned long lb_irq_int_8:1; /* RW */
+ unsigned long lb_irq_int_9:1; /* RW */
+ unsigned long lb_irq_int_10:1; /* RW */
+ unsigned long lb_irq_int_11:1; /* RW */
+ unsigned long lb_irq_int_12:1; /* RW */
+ unsigned long lb_irq_int_13:1; /* RW */
+ unsigned long lb_irq_int_14:1; /* RW */
+ unsigned long lb_irq_int_15:1; /* RW */
+ unsigned long l1_nmi_int:1; /* RW */
+ unsigned long stop_clock:1; /* RW */
+ unsigned long asic_to_l1:1; /* RW */
+ unsigned long l1_to_asic:1; /* RW */
+ unsigned long la_seq_trigger:1; /* RW */
+ unsigned long ipi_int:1; /* RW */
+ unsigned long extio_int0:1; /* RW */
+ unsigned long extio_int1:1; /* RW */
+ unsigned long extio_int2:1; /* RW */
+ unsigned long extio_int3:1; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_event_occurred0_s {
+ unsigned long lb_hcerr:1; /* RW */
+ unsigned long qp_hcerr:1; /* RW */
+ unsigned long rh_hcerr:1; /* RW */
+ unsigned long lh0_hcerr:1; /* RW */
+ unsigned long lh1_hcerr:1; /* RW */
+ unsigned long gr0_hcerr:1; /* RW */
+ unsigned long gr1_hcerr:1; /* RW */
+ unsigned long ni0_hcerr:1; /* RW */
+ unsigned long ni1_hcerr:1; /* RW */
+ unsigned long lb_aoerr0:1; /* RW */
+ unsigned long qp_aoerr0:1; /* RW */
+ unsigned long rh_aoerr0:1; /* RW */
+ unsigned long lh0_aoerr0:1; /* RW */
+ unsigned long lh1_aoerr0:1; /* RW */
+ unsigned long gr0_aoerr0:1; /* RW */
+ unsigned long gr1_aoerr0:1; /* RW */
+ unsigned long xb_aoerr0:1; /* RW */
+ unsigned long rt_aoerr0:1; /* RW */
+ unsigned long ni0_aoerr0:1; /* RW */
+ unsigned long ni1_aoerr0:1; /* RW */
+ unsigned long lb_aoerr1:1; /* RW */
+ unsigned long qp_aoerr1:1; /* RW */
+ unsigned long rh_aoerr1:1; /* RW */
+ unsigned long lh0_aoerr1:1; /* RW */
+ unsigned long lh1_aoerr1:1; /* RW */
+ unsigned long gr0_aoerr1:1; /* RW */
+ unsigned long gr1_aoerr1:1; /* RW */
+ unsigned long xb_aoerr1:1; /* RW */
+ unsigned long rt_aoerr1:1; /* RW */
+ unsigned long ni0_aoerr1:1; /* RW */
+ unsigned long ni1_aoerr1:1; /* RW */
+ unsigned long system_shutdown_int:1; /* RW */
+ unsigned long lb_irq_int_0:1; /* RW */
+ unsigned long lb_irq_int_1:1; /* RW */
+ unsigned long lb_irq_int_2:1; /* RW */
+ unsigned long lb_irq_int_3:1; /* RW */
+ unsigned long lb_irq_int_4:1; /* RW */
+ unsigned long lb_irq_int_5:1; /* RW */
+ unsigned long lb_irq_int_6:1; /* RW */
+ unsigned long lb_irq_int_7:1; /* RW */
+ unsigned long lb_irq_int_8:1; /* RW */
+ unsigned long lb_irq_int_9:1; /* RW */
+ unsigned long lb_irq_int_10:1; /* RW */
+ unsigned long lb_irq_int_11:1; /* RW */
+ unsigned long lb_irq_int_12:1; /* RW */
+ unsigned long lb_irq_int_13:1; /* RW */
+ unsigned long lb_irq_int_14:1; /* RW */
+ unsigned long lb_irq_int_15:1; /* RW */
+ unsigned long l1_nmi_int:1; /* RW */
+ unsigned long stop_clock:1; /* RW */
+ unsigned long asic_to_l1:1; /* RW */
+ unsigned long l1_to_asic:1; /* RW */
+ unsigned long la_seq_trigger:1; /* RW */
+ unsigned long ipi_int:1; /* RW */
+ unsigned long extio_int0:1; /* RW */
+ unsigned long extio_int1:1; /* RW */
+ unsigned long extio_int2:1; /* RW */
+ unsigned long extio_int3:1; /* RW */
+ unsigned long profile_int:1; /* RW */
+ unsigned long rsvd_59_63:5;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_event_occurred0_s {
+ unsigned long lb_hcerr:1; /* RW */
+ unsigned long qp_hcerr:1; /* RW */
+ unsigned long rh_hcerr:1; /* RW */
+ unsigned long lh0_hcerr:1; /* RW */
+ unsigned long lh1_hcerr:1; /* RW */
+ unsigned long gr0_hcerr:1; /* RW */
+ unsigned long gr1_hcerr:1; /* RW */
+ unsigned long ni0_hcerr:1; /* RW */
+ unsigned long ni1_hcerr:1; /* RW */
+ unsigned long lb_aoerr0:1; /* RW */
+ unsigned long qp_aoerr0:1; /* RW */
+ unsigned long rh_aoerr0:1; /* RW */
+ unsigned long lh0_aoerr0:1; /* RW */
+ unsigned long lh1_aoerr0:1; /* RW */
+ unsigned long gr0_aoerr0:1; /* RW */
+ unsigned long gr1_aoerr0:1; /* RW */
+ unsigned long xb_aoerr0:1; /* RW */
+ unsigned long rt_aoerr0:1; /* RW */
+ unsigned long ni0_aoerr0:1; /* RW */
+ unsigned long ni1_aoerr0:1; /* RW */
+ unsigned long lb_aoerr1:1; /* RW */
+ unsigned long qp_aoerr1:1; /* RW */
+ unsigned long rh_aoerr1:1; /* RW */
+ unsigned long lh0_aoerr1:1; /* RW */
+ unsigned long lh1_aoerr1:1; /* RW */
+ unsigned long gr0_aoerr1:1; /* RW */
+ unsigned long gr1_aoerr1:1; /* RW */
+ unsigned long xb_aoerr1:1; /* RW */
+ unsigned long rt_aoerr1:1; /* RW */
+ unsigned long ni0_aoerr1:1; /* RW */
+ unsigned long ni1_aoerr1:1; /* RW */
+ unsigned long system_shutdown_int:1; /* RW */
+ unsigned long lb_irq_int_0:1; /* RW */
+ unsigned long lb_irq_int_1:1; /* RW */
+ unsigned long lb_irq_int_2:1; /* RW */
+ unsigned long lb_irq_int_3:1; /* RW */
+ unsigned long lb_irq_int_4:1; /* RW */
+ unsigned long lb_irq_int_5:1; /* RW */
+ unsigned long lb_irq_int_6:1; /* RW */
+ unsigned long lb_irq_int_7:1; /* RW */
+ unsigned long lb_irq_int_8:1; /* RW */
+ unsigned long lb_irq_int_9:1; /* RW */
+ unsigned long lb_irq_int_10:1; /* RW */
+ unsigned long lb_irq_int_11:1; /* RW */
+ unsigned long lb_irq_int_12:1; /* RW */
+ unsigned long lb_irq_int_13:1; /* RW */
+ unsigned long lb_irq_int_14:1; /* RW */
+ unsigned long lb_irq_int_15:1; /* RW */
+ unsigned long l1_nmi_int:1; /* RW */
+ unsigned long stop_clock:1; /* RW */
+ unsigned long asic_to_l1:1; /* RW */
+ unsigned long l1_to_asic:1; /* RW */
+ unsigned long la_seq_trigger:1; /* RW */
+ unsigned long ipi_int:1; /* RW */
+ unsigned long extio_int0:1; /* RW */
+ unsigned long extio_int1:1; /* RW */
+ unsigned long extio_int2:1; /* RW */
+ unsigned long extio_int3:1; /* RW */
+ unsigned long profile_int:1; /* RW */
+ unsigned long rsvd_59_63:5;
+ } s2;
};
/* ========================================================================= */
-/* UVH_BAU_DATA_CONFIG */
-/* ========================================================================= */
-#define UVH_BAU_DATA_CONFIG 0x61680UL
-#define UVH_BAU_DATA_CONFIG_32 0x0438
-
-#define UVH_BAU_DATA_CONFIG_VECTOR_SHFT 0
-#define UVH_BAU_DATA_CONFIG_VECTOR_MASK 0x00000000000000ffUL
-#define UVH_BAU_DATA_CONFIG_DM_SHFT 8
-#define UVH_BAU_DATA_CONFIG_DM_MASK 0x0000000000000700UL
-#define UVH_BAU_DATA_CONFIG_DESTMODE_SHFT 11
-#define UVH_BAU_DATA_CONFIG_DESTMODE_MASK 0x0000000000000800UL
-#define UVH_BAU_DATA_CONFIG_STATUS_SHFT 12
-#define UVH_BAU_DATA_CONFIG_STATUS_MASK 0x0000000000001000UL
-#define UVH_BAU_DATA_CONFIG_P_SHFT 13
-#define UVH_BAU_DATA_CONFIG_P_MASK 0x0000000000002000UL
-#define UVH_BAU_DATA_CONFIG_T_SHFT 15
-#define UVH_BAU_DATA_CONFIG_T_MASK 0x0000000000008000UL
-#define UVH_BAU_DATA_CONFIG_M_SHFT 16
-#define UVH_BAU_DATA_CONFIG_M_MASK 0x0000000000010000UL
-#define UVH_BAU_DATA_CONFIG_APIC_ID_SHFT 32
-#define UVH_BAU_DATA_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
-
-union uvh_bau_data_config_u {
- unsigned long v;
- struct uvh_bau_data_config_s {
- unsigned long vector_ : 8; /* RW */
- unsigned long dm : 3; /* RW */
- unsigned long destmode : 1; /* RW */
- unsigned long status : 1; /* RO */
- unsigned long p : 1; /* RO */
- unsigned long rsvd_14 : 1; /* */
- unsigned long t : 1; /* RO */
- unsigned long m : 1; /* RW */
- unsigned long rsvd_17_31: 15; /* */
- unsigned long apic_id : 32; /* RW */
- } s;
+/* UVH_EVENT_OCCURRED0_ALIAS */
+/* ========================================================================= */
+#define UVH_EVENT_OCCURRED0_ALIAS 0x70008UL
+
+
+/* ========================================================================= */
+/* UVH_EVENT_OCCURRED1 */
+/* ========================================================================= */
+#define UVH_EVENT_OCCURRED1 0x70080UL
+
+
+
+/* UVYH common defines */
+#define UVYH_EVENT_OCCURRED1_IPI_INT_SHFT 0
+#define UVYH_EVENT_OCCURRED1_IPI_INT_MASK 0x0000000000000001UL
+#define UVYH_EVENT_OCCURRED1_EXTIO_INT0_SHFT 1
+#define UVYH_EVENT_OCCURRED1_EXTIO_INT0_MASK 0x0000000000000002UL
+#define UVYH_EVENT_OCCURRED1_EXTIO_INT1_SHFT 2
+#define UVYH_EVENT_OCCURRED1_EXTIO_INT1_MASK 0x0000000000000004UL
+#define UVYH_EVENT_OCCURRED1_EXTIO_INT2_SHFT 3
+#define UVYH_EVENT_OCCURRED1_EXTIO_INT2_MASK 0x0000000000000008UL
+#define UVYH_EVENT_OCCURRED1_EXTIO_INT3_SHFT 4
+#define UVYH_EVENT_OCCURRED1_EXTIO_INT3_MASK 0x0000000000000010UL
+#define UVYH_EVENT_OCCURRED1_PROFILE_INT_SHFT 5
+#define UVYH_EVENT_OCCURRED1_PROFILE_INT_MASK 0x0000000000000020UL
+#define UVYH_EVENT_OCCURRED1_BAU_DATA_SHFT 6
+#define UVYH_EVENT_OCCURRED1_BAU_DATA_MASK 0x0000000000000040UL
+#define UVYH_EVENT_OCCURRED1_PROC_GENERAL_SHFT 7
+#define UVYH_EVENT_OCCURRED1_PROC_GENERAL_MASK 0x0000000000000080UL
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT0_SHFT 8
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT0_MASK 0x0000000000000100UL
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT1_SHFT 9
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT1_MASK 0x0000000000000200UL
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT2_SHFT 10
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT2_MASK 0x0000000000000400UL
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT3_SHFT 11
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT3_MASK 0x0000000000000800UL
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT4_SHFT 12
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT4_MASK 0x0000000000001000UL
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT5_SHFT 13
+#define UVYH_EVENT_OCCURRED1_XH_TLB_INT5_MASK 0x0000000000002000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT0_SHFT 14
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT0_MASK 0x0000000000004000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT1_SHFT 15
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT1_MASK 0x0000000000008000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT2_SHFT 16
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT2_MASK 0x0000000000010000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT3_SHFT 17
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT3_MASK 0x0000000000020000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT4_SHFT 18
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT4_MASK 0x0000000000040000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT5_SHFT 19
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT5_MASK 0x0000000000080000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT6_SHFT 20
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT6_MASK 0x0000000000100000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT7_SHFT 21
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT7_MASK 0x0000000000200000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT8_SHFT 22
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT8_MASK 0x0000000000400000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT9_SHFT 23
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT9_MASK 0x0000000000800000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT10_SHFT 24
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT10_MASK 0x0000000001000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT11_SHFT 25
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT11_MASK 0x0000000002000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT12_SHFT 26
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT12_MASK 0x0000000004000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT13_SHFT 27
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT13_MASK 0x0000000008000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT14_SHFT 28
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT14_MASK 0x0000000010000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT15_SHFT 29
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT15_MASK 0x0000000020000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT16_SHFT 30
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT16_MASK 0x0000000040000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT17_SHFT 31
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT17_MASK 0x0000000080000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT18_SHFT 32
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT18_MASK 0x0000000100000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT19_SHFT 33
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT19_MASK 0x0000000200000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT20_SHFT 34
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT20_MASK 0x0000000400000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT21_SHFT 35
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT21_MASK 0x0000000800000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT22_SHFT 36
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT22_MASK 0x0000001000000000UL
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT23_SHFT 37
+#define UVYH_EVENT_OCCURRED1_RDM_TLB_INT23_MASK 0x0000002000000000UL
+
+/* UV4 unique defines */
+#define UV4H_EVENT_OCCURRED1_PROFILE_INT_SHFT 0
+#define UV4H_EVENT_OCCURRED1_PROFILE_INT_MASK 0x0000000000000001UL
+#define UV4H_EVENT_OCCURRED1_BAU_DATA_SHFT 1
+#define UV4H_EVENT_OCCURRED1_BAU_DATA_MASK 0x0000000000000002UL
+#define UV4H_EVENT_OCCURRED1_PROC_GENERAL_SHFT 2
+#define UV4H_EVENT_OCCURRED1_PROC_GENERAL_MASK 0x0000000000000004UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT0_SHFT 3
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT0_MASK 0x0000000000000008UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT1_SHFT 4
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT1_MASK 0x0000000000000010UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT2_SHFT 5
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT2_MASK 0x0000000000000020UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT3_SHFT 6
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT3_MASK 0x0000000000000040UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT4_SHFT 7
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT4_MASK 0x0000000000000080UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT5_SHFT 8
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT5_MASK 0x0000000000000100UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT6_SHFT 9
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT6_MASK 0x0000000000000200UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT7_SHFT 10
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT7_MASK 0x0000000000000400UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT8_SHFT 11
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT8_MASK 0x0000000000000800UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT9_SHFT 12
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT9_MASK 0x0000000000001000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT10_SHFT 13
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT10_MASK 0x0000000000002000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT11_SHFT 14
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT11_MASK 0x0000000000004000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT12_SHFT 15
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT12_MASK 0x0000000000008000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT13_SHFT 16
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT13_MASK 0x0000000000010000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT14_SHFT 17
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT14_MASK 0x0000000000020000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT15_SHFT 18
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT15_MASK 0x0000000000040000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT16_SHFT 19
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT16_MASK 0x0000000000080000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT17_SHFT 20
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT17_MASK 0x0000000000100000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT18_SHFT 21
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT18_MASK 0x0000000000200000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT19_SHFT 22
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT19_MASK 0x0000000000400000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT20_SHFT 23
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT20_MASK 0x0000000000800000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT21_SHFT 24
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT21_MASK 0x0000000001000000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT22_SHFT 25
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT22_MASK 0x0000000002000000UL
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT23_SHFT 26
+#define UV4H_EVENT_OCCURRED1_GR0_TLB_INT23_MASK 0x0000000004000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT0_SHFT 27
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT0_MASK 0x0000000008000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT1_SHFT 28
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT1_MASK 0x0000000010000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT2_SHFT 29
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT2_MASK 0x0000000020000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT3_SHFT 30
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT3_MASK 0x0000000040000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT4_SHFT 31
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT4_MASK 0x0000000080000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT5_SHFT 32
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT5_MASK 0x0000000100000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT6_SHFT 33
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT6_MASK 0x0000000200000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT7_SHFT 34
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT7_MASK 0x0000000400000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT8_SHFT 35
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT8_MASK 0x0000000800000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT9_SHFT 36
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT9_MASK 0x0000001000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT10_SHFT 37
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT10_MASK 0x0000002000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT11_SHFT 38
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT11_MASK 0x0000004000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT12_SHFT 39
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT12_MASK 0x0000008000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT13_SHFT 40
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT13_MASK 0x0000010000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT14_SHFT 41
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT14_MASK 0x0000020000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT15_SHFT 42
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT15_MASK 0x0000040000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT16_SHFT 43
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT16_MASK 0x0000080000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT17_SHFT 44
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT17_MASK 0x0000100000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT18_SHFT 45
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT18_MASK 0x0000200000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT19_SHFT 46
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT19_MASK 0x0000400000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT20_SHFT 47
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT20_MASK 0x0000800000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT21_SHFT 48
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT21_MASK 0x0001000000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT22_SHFT 49
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT22_MASK 0x0002000000000000UL
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT23_SHFT 50
+#define UV4H_EVENT_OCCURRED1_GR1_TLB_INT23_MASK 0x0004000000000000UL
+
+/* UV3 unique defines */
+#define UV3H_EVENT_OCCURRED1_BAU_DATA_SHFT 0
+#define UV3H_EVENT_OCCURRED1_BAU_DATA_MASK 0x0000000000000001UL
+#define UV3H_EVENT_OCCURRED1_POWER_MANAGEMENT_REQ_SHFT 1
+#define UV3H_EVENT_OCCURRED1_POWER_MANAGEMENT_REQ_MASK 0x0000000000000002UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT0_SHFT 2
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT0_MASK 0x0000000000000004UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT1_SHFT 3
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT1_MASK 0x0000000000000008UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT2_SHFT 4
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT2_MASK 0x0000000000000010UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT3_SHFT 5
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT3_MASK 0x0000000000000020UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT4_SHFT 6
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT4_MASK 0x0000000000000040UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT5_SHFT 7
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT5_MASK 0x0000000000000080UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT6_SHFT 8
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT6_MASK 0x0000000000000100UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT7_SHFT 9
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT7_MASK 0x0000000000000200UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT8_SHFT 10
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT8_MASK 0x0000000000000400UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT9_SHFT 11
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT9_MASK 0x0000000000000800UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT10_SHFT 12
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT10_MASK 0x0000000000001000UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT11_SHFT 13
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT11_MASK 0x0000000000002000UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT12_SHFT 14
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT12_MASK 0x0000000000004000UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT13_SHFT 15
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT13_MASK 0x0000000000008000UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT14_SHFT 16
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT14_MASK 0x0000000000010000UL
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT15_SHFT 17
+#define UV3H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT15_MASK 0x0000000000020000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT0_SHFT 18
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT0_MASK 0x0000000000040000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT1_SHFT 19
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT1_MASK 0x0000000000080000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT2_SHFT 20
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT2_MASK 0x0000000000100000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT3_SHFT 21
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT3_MASK 0x0000000000200000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT4_SHFT 22
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT4_MASK 0x0000000000400000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT5_SHFT 23
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT5_MASK 0x0000000000800000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT6_SHFT 24
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT6_MASK 0x0000000001000000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT7_SHFT 25
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT7_MASK 0x0000000002000000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT8_SHFT 26
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT8_MASK 0x0000000004000000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT9_SHFT 27
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT9_MASK 0x0000000008000000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT10_SHFT 28
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT10_MASK 0x0000000010000000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT11_SHFT 29
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT11_MASK 0x0000000020000000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT12_SHFT 30
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT12_MASK 0x0000000040000000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT13_SHFT 31
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT13_MASK 0x0000000080000000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT14_SHFT 32
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT14_MASK 0x0000000100000000UL
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT15_SHFT 33
+#define UV3H_EVENT_OCCURRED1_GR0_TLB_INT15_MASK 0x0000000200000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT0_SHFT 34
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT0_MASK 0x0000000400000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT1_SHFT 35
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT1_MASK 0x0000000800000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT2_SHFT 36
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT2_MASK 0x0000001000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT3_SHFT 37
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT3_MASK 0x0000002000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT4_SHFT 38
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT4_MASK 0x0000004000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT5_SHFT 39
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT5_MASK 0x0000008000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT6_SHFT 40
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT6_MASK 0x0000010000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT7_SHFT 41
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT7_MASK 0x0000020000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT8_SHFT 42
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT8_MASK 0x0000040000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT9_SHFT 43
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT9_MASK 0x0000080000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT10_SHFT 44
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT10_MASK 0x0000100000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT11_SHFT 45
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT11_MASK 0x0000200000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT12_SHFT 46
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT12_MASK 0x0000400000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT13_SHFT 47
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT13_MASK 0x0000800000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT14_SHFT 48
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT14_MASK 0x0001000000000000UL
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT15_SHFT 49
+#define UV3H_EVENT_OCCURRED1_GR1_TLB_INT15_MASK 0x0002000000000000UL
+#define UV3H_EVENT_OCCURRED1_RTC_INTERVAL_INT_SHFT 50
+#define UV3H_EVENT_OCCURRED1_RTC_INTERVAL_INT_MASK 0x0004000000000000UL
+#define UV3H_EVENT_OCCURRED1_BAU_DASHBOARD_INT_SHFT 51
+#define UV3H_EVENT_OCCURRED1_BAU_DASHBOARD_INT_MASK 0x0008000000000000UL
+
+/* UV2 unique defines */
+#define UV2H_EVENT_OCCURRED1_BAU_DATA_SHFT 0
+#define UV2H_EVENT_OCCURRED1_BAU_DATA_MASK 0x0000000000000001UL
+#define UV2H_EVENT_OCCURRED1_POWER_MANAGEMENT_REQ_SHFT 1
+#define UV2H_EVENT_OCCURRED1_POWER_MANAGEMENT_REQ_MASK 0x0000000000000002UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT0_SHFT 2
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT0_MASK 0x0000000000000004UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT1_SHFT 3
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT1_MASK 0x0000000000000008UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT2_SHFT 4
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT2_MASK 0x0000000000000010UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT3_SHFT 5
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT3_MASK 0x0000000000000020UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT4_SHFT 6
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT4_MASK 0x0000000000000040UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT5_SHFT 7
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT5_MASK 0x0000000000000080UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT6_SHFT 8
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT6_MASK 0x0000000000000100UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT7_SHFT 9
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT7_MASK 0x0000000000000200UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT8_SHFT 10
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT8_MASK 0x0000000000000400UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT9_SHFT 11
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT9_MASK 0x0000000000000800UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT10_SHFT 12
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT10_MASK 0x0000000000001000UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT11_SHFT 13
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT11_MASK 0x0000000000002000UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT12_SHFT 14
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT12_MASK 0x0000000000004000UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT13_SHFT 15
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT13_MASK 0x0000000000008000UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT14_SHFT 16
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT14_MASK 0x0000000000010000UL
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT15_SHFT 17
+#define UV2H_EVENT_OCCURRED1_MESSAGE_ACCELERATOR_INT15_MASK 0x0000000000020000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT0_SHFT 18
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT0_MASK 0x0000000000040000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT1_SHFT 19
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT1_MASK 0x0000000000080000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT2_SHFT 20
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT2_MASK 0x0000000000100000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT3_SHFT 21
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT3_MASK 0x0000000000200000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT4_SHFT 22
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT4_MASK 0x0000000000400000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT5_SHFT 23
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT5_MASK 0x0000000000800000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT6_SHFT 24
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT6_MASK 0x0000000001000000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT7_SHFT 25
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT7_MASK 0x0000000002000000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT8_SHFT 26
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT8_MASK 0x0000000004000000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT9_SHFT 27
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT9_MASK 0x0000000008000000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT10_SHFT 28
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT10_MASK 0x0000000010000000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT11_SHFT 29
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT11_MASK 0x0000000020000000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT12_SHFT 30
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT12_MASK 0x0000000040000000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT13_SHFT 31
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT13_MASK 0x0000000080000000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT14_SHFT 32
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT14_MASK 0x0000000100000000UL
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT15_SHFT 33
+#define UV2H_EVENT_OCCURRED1_GR0_TLB_INT15_MASK 0x0000000200000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT0_SHFT 34
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT0_MASK 0x0000000400000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT1_SHFT 35
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT1_MASK 0x0000000800000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT2_SHFT 36
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT2_MASK 0x0000001000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT3_SHFT 37
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT3_MASK 0x0000002000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT4_SHFT 38
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT4_MASK 0x0000004000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT5_SHFT 39
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT5_MASK 0x0000008000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT6_SHFT 40
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT6_MASK 0x0000010000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT7_SHFT 41
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT7_MASK 0x0000020000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT8_SHFT 42
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT8_MASK 0x0000040000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT9_SHFT 43
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT9_MASK 0x0000080000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT10_SHFT 44
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT10_MASK 0x0000100000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT11_SHFT 45
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT11_MASK 0x0000200000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT12_SHFT 46
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT12_MASK 0x0000400000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT13_SHFT 47
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT13_MASK 0x0000800000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT14_SHFT 48
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT14_MASK 0x0001000000000000UL
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT15_SHFT 49
+#define UV2H_EVENT_OCCURRED1_GR1_TLB_INT15_MASK 0x0002000000000000UL
+#define UV2H_EVENT_OCCURRED1_RTC_INTERVAL_INT_SHFT 50
+#define UV2H_EVENT_OCCURRED1_RTC_INTERVAL_INT_MASK 0x0004000000000000UL
+#define UV2H_EVENT_OCCURRED1_BAU_DASHBOARD_INT_SHFT 51
+#define UV2H_EVENT_OCCURRED1_BAU_DASHBOARD_INT_MASK 0x0008000000000000UL
+
+#define UVH_EVENT_OCCURRED1_EXTIO_INT0_MASK ( \
+ is_uv(UV5) ? 0x0000000000000002UL : \
+ 0)
+#define UVH_EVENT_OCCURRED1_EXTIO_INT0_SHFT ( \
+ is_uv(UV5) ? 1 : \
+ -1)
+
+union uvyh_event_occurred1_u {
+ unsigned long v;
+
+ /* UVYH common struct */
+ struct uvyh_event_occurred1_s {
+ unsigned long ipi_int:1; /* RW */
+ unsigned long extio_int0:1; /* RW */
+ unsigned long extio_int1:1; /* RW */
+ unsigned long extio_int2:1; /* RW */
+ unsigned long extio_int3:1; /* RW */
+ unsigned long profile_int:1; /* RW */
+ unsigned long bau_data:1; /* RW */
+ unsigned long proc_general:1; /* RW */
+ unsigned long xh_tlb_int0:1; /* RW */
+ unsigned long xh_tlb_int1:1; /* RW */
+ unsigned long xh_tlb_int2:1; /* RW */
+ unsigned long xh_tlb_int3:1; /* RW */
+ unsigned long xh_tlb_int4:1; /* RW */
+ unsigned long xh_tlb_int5:1; /* RW */
+ unsigned long rdm_tlb_int0:1; /* RW */
+ unsigned long rdm_tlb_int1:1; /* RW */
+ unsigned long rdm_tlb_int2:1; /* RW */
+ unsigned long rdm_tlb_int3:1; /* RW */
+ unsigned long rdm_tlb_int4:1; /* RW */
+ unsigned long rdm_tlb_int5:1; /* RW */
+ unsigned long rdm_tlb_int6:1; /* RW */
+ unsigned long rdm_tlb_int7:1; /* RW */
+ unsigned long rdm_tlb_int8:1; /* RW */
+ unsigned long rdm_tlb_int9:1; /* RW */
+ unsigned long rdm_tlb_int10:1; /* RW */
+ unsigned long rdm_tlb_int11:1; /* RW */
+ unsigned long rdm_tlb_int12:1; /* RW */
+ unsigned long rdm_tlb_int13:1; /* RW */
+ unsigned long rdm_tlb_int14:1; /* RW */
+ unsigned long rdm_tlb_int15:1; /* RW */
+ unsigned long rdm_tlb_int16:1; /* RW */
+ unsigned long rdm_tlb_int17:1; /* RW */
+ unsigned long rdm_tlb_int18:1; /* RW */
+ unsigned long rdm_tlb_int19:1; /* RW */
+ unsigned long rdm_tlb_int20:1; /* RW */
+ unsigned long rdm_tlb_int21:1; /* RW */
+ unsigned long rdm_tlb_int22:1; /* RW */
+ unsigned long rdm_tlb_int23:1; /* RW */
+ unsigned long rsvd_38_63:26;
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_event_occurred1_s {
+ unsigned long ipi_int:1; /* RW */
+ unsigned long extio_int0:1; /* RW */
+ unsigned long extio_int1:1; /* RW */
+ unsigned long extio_int2:1; /* RW */
+ unsigned long extio_int3:1; /* RW */
+ unsigned long profile_int:1; /* RW */
+ unsigned long bau_data:1; /* RW */
+ unsigned long proc_general:1; /* RW */
+ unsigned long xh_tlb_int0:1; /* RW */
+ unsigned long xh_tlb_int1:1; /* RW */
+ unsigned long xh_tlb_int2:1; /* RW */
+ unsigned long xh_tlb_int3:1; /* RW */
+ unsigned long xh_tlb_int4:1; /* RW */
+ unsigned long xh_tlb_int5:1; /* RW */
+ unsigned long rdm_tlb_int0:1; /* RW */
+ unsigned long rdm_tlb_int1:1; /* RW */
+ unsigned long rdm_tlb_int2:1; /* RW */
+ unsigned long rdm_tlb_int3:1; /* RW */
+ unsigned long rdm_tlb_int4:1; /* RW */
+ unsigned long rdm_tlb_int5:1; /* RW */
+ unsigned long rdm_tlb_int6:1; /* RW */
+ unsigned long rdm_tlb_int7:1; /* RW */
+ unsigned long rdm_tlb_int8:1; /* RW */
+ unsigned long rdm_tlb_int9:1; /* RW */
+ unsigned long rdm_tlb_int10:1; /* RW */
+ unsigned long rdm_tlb_int11:1; /* RW */
+ unsigned long rdm_tlb_int12:1; /* RW */
+ unsigned long rdm_tlb_int13:1; /* RW */
+ unsigned long rdm_tlb_int14:1; /* RW */
+ unsigned long rdm_tlb_int15:1; /* RW */
+ unsigned long rdm_tlb_int16:1; /* RW */
+ unsigned long rdm_tlb_int17:1; /* RW */
+ unsigned long rdm_tlb_int18:1; /* RW */
+ unsigned long rdm_tlb_int19:1; /* RW */
+ unsigned long rdm_tlb_int20:1; /* RW */
+ unsigned long rdm_tlb_int21:1; /* RW */
+ unsigned long rdm_tlb_int22:1; /* RW */
+ unsigned long rdm_tlb_int23:1; /* RW */
+ unsigned long rsvd_38_63:26;
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_event_occurred1_s {
+ unsigned long profile_int:1; /* RW */
+ unsigned long bau_data:1; /* RW */
+ unsigned long proc_general:1; /* RW */
+ unsigned long gr0_tlb_int0:1; /* RW */
+ unsigned long gr0_tlb_int1:1; /* RW */
+ unsigned long gr0_tlb_int2:1; /* RW */
+ unsigned long gr0_tlb_int3:1; /* RW */
+ unsigned long gr0_tlb_int4:1; /* RW */
+ unsigned long gr0_tlb_int5:1; /* RW */
+ unsigned long gr0_tlb_int6:1; /* RW */
+ unsigned long gr0_tlb_int7:1; /* RW */
+ unsigned long gr0_tlb_int8:1; /* RW */
+ unsigned long gr0_tlb_int9:1; /* RW */
+ unsigned long gr0_tlb_int10:1; /* RW */
+ unsigned long gr0_tlb_int11:1; /* RW */
+ unsigned long gr0_tlb_int12:1; /* RW */
+ unsigned long gr0_tlb_int13:1; /* RW */
+ unsigned long gr0_tlb_int14:1; /* RW */
+ unsigned long gr0_tlb_int15:1; /* RW */
+ unsigned long gr0_tlb_int16:1; /* RW */
+ unsigned long gr0_tlb_int17:1; /* RW */
+ unsigned long gr0_tlb_int18:1; /* RW */
+ unsigned long gr0_tlb_int19:1; /* RW */
+ unsigned long gr0_tlb_int20:1; /* RW */
+ unsigned long gr0_tlb_int21:1; /* RW */
+ unsigned long gr0_tlb_int22:1; /* RW */
+ unsigned long gr0_tlb_int23:1; /* RW */
+ unsigned long gr1_tlb_int0:1; /* RW */
+ unsigned long gr1_tlb_int1:1; /* RW */
+ unsigned long gr1_tlb_int2:1; /* RW */
+ unsigned long gr1_tlb_int3:1; /* RW */
+ unsigned long gr1_tlb_int4:1; /* RW */
+ unsigned long gr1_tlb_int5:1; /* RW */
+ unsigned long gr1_tlb_int6:1; /* RW */
+ unsigned long gr1_tlb_int7:1; /* RW */
+ unsigned long gr1_tlb_int8:1; /* RW */
+ unsigned long gr1_tlb_int9:1; /* RW */
+ unsigned long gr1_tlb_int10:1; /* RW */
+ unsigned long gr1_tlb_int11:1; /* RW */
+ unsigned long gr1_tlb_int12:1; /* RW */
+ unsigned long gr1_tlb_int13:1; /* RW */
+ unsigned long gr1_tlb_int14:1; /* RW */
+ unsigned long gr1_tlb_int15:1; /* RW */
+ unsigned long gr1_tlb_int16:1; /* RW */
+ unsigned long gr1_tlb_int17:1; /* RW */
+ unsigned long gr1_tlb_int18:1; /* RW */
+ unsigned long gr1_tlb_int19:1; /* RW */
+ unsigned long gr1_tlb_int20:1; /* RW */
+ unsigned long gr1_tlb_int21:1; /* RW */
+ unsigned long gr1_tlb_int22:1; /* RW */
+ unsigned long gr1_tlb_int23:1; /* RW */
+ unsigned long rsvd_51_63:13;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_event_occurred1_s {
+ unsigned long bau_data:1; /* RW */
+ unsigned long power_management_req:1; /* RW */
+ unsigned long message_accelerator_int0:1; /* RW */
+ unsigned long message_accelerator_int1:1; /* RW */
+ unsigned long message_accelerator_int2:1; /* RW */
+ unsigned long message_accelerator_int3:1; /* RW */
+ unsigned long message_accelerator_int4:1; /* RW */
+ unsigned long message_accelerator_int5:1; /* RW */
+ unsigned long message_accelerator_int6:1; /* RW */
+ unsigned long message_accelerator_int7:1; /* RW */
+ unsigned long message_accelerator_int8:1; /* RW */
+ unsigned long message_accelerator_int9:1; /* RW */
+ unsigned long message_accelerator_int10:1; /* RW */
+ unsigned long message_accelerator_int11:1; /* RW */
+ unsigned long message_accelerator_int12:1; /* RW */
+ unsigned long message_accelerator_int13:1; /* RW */
+ unsigned long message_accelerator_int14:1; /* RW */
+ unsigned long message_accelerator_int15:1; /* RW */
+ unsigned long gr0_tlb_int0:1; /* RW */
+ unsigned long gr0_tlb_int1:1; /* RW */
+ unsigned long gr0_tlb_int2:1; /* RW */
+ unsigned long gr0_tlb_int3:1; /* RW */
+ unsigned long gr0_tlb_int4:1; /* RW */
+ unsigned long gr0_tlb_int5:1; /* RW */
+ unsigned long gr0_tlb_int6:1; /* RW */
+ unsigned long gr0_tlb_int7:1; /* RW */
+ unsigned long gr0_tlb_int8:1; /* RW */
+ unsigned long gr0_tlb_int9:1; /* RW */
+ unsigned long gr0_tlb_int10:1; /* RW */
+ unsigned long gr0_tlb_int11:1; /* RW */
+ unsigned long gr0_tlb_int12:1; /* RW */
+ unsigned long gr0_tlb_int13:1; /* RW */
+ unsigned long gr0_tlb_int14:1; /* RW */
+ unsigned long gr0_tlb_int15:1; /* RW */
+ unsigned long gr1_tlb_int0:1; /* RW */
+ unsigned long gr1_tlb_int1:1; /* RW */
+ unsigned long gr1_tlb_int2:1; /* RW */
+ unsigned long gr1_tlb_int3:1; /* RW */
+ unsigned long gr1_tlb_int4:1; /* RW */
+ unsigned long gr1_tlb_int5:1; /* RW */
+ unsigned long gr1_tlb_int6:1; /* RW */
+ unsigned long gr1_tlb_int7:1; /* RW */
+ unsigned long gr1_tlb_int8:1; /* RW */
+ unsigned long gr1_tlb_int9:1; /* RW */
+ unsigned long gr1_tlb_int10:1; /* RW */
+ unsigned long gr1_tlb_int11:1; /* RW */
+ unsigned long gr1_tlb_int12:1; /* RW */
+ unsigned long gr1_tlb_int13:1; /* RW */
+ unsigned long gr1_tlb_int14:1; /* RW */
+ unsigned long gr1_tlb_int15:1; /* RW */
+ unsigned long rtc_interval_int:1; /* RW */
+ unsigned long bau_dashboard_int:1; /* RW */
+ unsigned long rsvd_52_63:12;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_event_occurred1_s {
+ unsigned long bau_data:1; /* RW */
+ unsigned long power_management_req:1; /* RW */
+ unsigned long message_accelerator_int0:1; /* RW */
+ unsigned long message_accelerator_int1:1; /* RW */
+ unsigned long message_accelerator_int2:1; /* RW */
+ unsigned long message_accelerator_int3:1; /* RW */
+ unsigned long message_accelerator_int4:1; /* RW */
+ unsigned long message_accelerator_int5:1; /* RW */
+ unsigned long message_accelerator_int6:1; /* RW */
+ unsigned long message_accelerator_int7:1; /* RW */
+ unsigned long message_accelerator_int8:1; /* RW */
+ unsigned long message_accelerator_int9:1; /* RW */
+ unsigned long message_accelerator_int10:1; /* RW */
+ unsigned long message_accelerator_int11:1; /* RW */
+ unsigned long message_accelerator_int12:1; /* RW */
+ unsigned long message_accelerator_int13:1; /* RW */
+ unsigned long message_accelerator_int14:1; /* RW */
+ unsigned long message_accelerator_int15:1; /* RW */
+ unsigned long gr0_tlb_int0:1; /* RW */
+ unsigned long gr0_tlb_int1:1; /* RW */
+ unsigned long gr0_tlb_int2:1; /* RW */
+ unsigned long gr0_tlb_int3:1; /* RW */
+ unsigned long gr0_tlb_int4:1; /* RW */
+ unsigned long gr0_tlb_int5:1; /* RW */
+ unsigned long gr0_tlb_int6:1; /* RW */
+ unsigned long gr0_tlb_int7:1; /* RW */
+ unsigned long gr0_tlb_int8:1; /* RW */
+ unsigned long gr0_tlb_int9:1; /* RW */
+ unsigned long gr0_tlb_int10:1; /* RW */
+ unsigned long gr0_tlb_int11:1; /* RW */
+ unsigned long gr0_tlb_int12:1; /* RW */
+ unsigned long gr0_tlb_int13:1; /* RW */
+ unsigned long gr0_tlb_int14:1; /* RW */
+ unsigned long gr0_tlb_int15:1; /* RW */
+ unsigned long gr1_tlb_int0:1; /* RW */
+ unsigned long gr1_tlb_int1:1; /* RW */
+ unsigned long gr1_tlb_int2:1; /* RW */
+ unsigned long gr1_tlb_int3:1; /* RW */
+ unsigned long gr1_tlb_int4:1; /* RW */
+ unsigned long gr1_tlb_int5:1; /* RW */
+ unsigned long gr1_tlb_int6:1; /* RW */
+ unsigned long gr1_tlb_int7:1; /* RW */
+ unsigned long gr1_tlb_int8:1; /* RW */
+ unsigned long gr1_tlb_int9:1; /* RW */
+ unsigned long gr1_tlb_int10:1; /* RW */
+ unsigned long gr1_tlb_int11:1; /* RW */
+ unsigned long gr1_tlb_int12:1; /* RW */
+ unsigned long gr1_tlb_int13:1; /* RW */
+ unsigned long gr1_tlb_int14:1; /* RW */
+ unsigned long gr1_tlb_int15:1; /* RW */
+ unsigned long rtc_interval_int:1; /* RW */
+ unsigned long bau_dashboard_int:1; /* RW */
+ unsigned long rsvd_52_63:12;
+ } s2;
};
/* ========================================================================= */
-/* UVH_EVENT_OCCURRED0 */
+/* UVH_EVENT_OCCURRED1_ALIAS */
/* ========================================================================= */
-#define UVH_EVENT_OCCURRED0 0x70000UL
-#define UVH_EVENT_OCCURRED0_32 0x005e8
-
-#define UVH_EVENT_OCCURRED0_LB_HCERR_SHFT 0
-#define UVH_EVENT_OCCURRED0_LB_HCERR_MASK 0x0000000000000001UL
-#define UVH_EVENT_OCCURRED0_GR0_HCERR_SHFT 1
-#define UVH_EVENT_OCCURRED0_GR0_HCERR_MASK 0x0000000000000002UL
-#define UVH_EVENT_OCCURRED0_GR1_HCERR_SHFT 2
-#define UVH_EVENT_OCCURRED0_GR1_HCERR_MASK 0x0000000000000004UL
-#define UVH_EVENT_OCCURRED0_LH_HCERR_SHFT 3
-#define UVH_EVENT_OCCURRED0_LH_HCERR_MASK 0x0000000000000008UL
-#define UVH_EVENT_OCCURRED0_RH_HCERR_SHFT 4
-#define UVH_EVENT_OCCURRED0_RH_HCERR_MASK 0x0000000000000010UL
-#define UVH_EVENT_OCCURRED0_XN_HCERR_SHFT 5
-#define UVH_EVENT_OCCURRED0_XN_HCERR_MASK 0x0000000000000020UL
-#define UVH_EVENT_OCCURRED0_SI_HCERR_SHFT 6
-#define UVH_EVENT_OCCURRED0_SI_HCERR_MASK 0x0000000000000040UL
-#define UVH_EVENT_OCCURRED0_LB_AOERR0_SHFT 7
-#define UVH_EVENT_OCCURRED0_LB_AOERR0_MASK 0x0000000000000080UL
-#define UVH_EVENT_OCCURRED0_GR0_AOERR0_SHFT 8
-#define UVH_EVENT_OCCURRED0_GR0_AOERR0_MASK 0x0000000000000100UL
-#define UVH_EVENT_OCCURRED0_GR1_AOERR0_SHFT 9
-#define UVH_EVENT_OCCURRED0_GR1_AOERR0_MASK 0x0000000000000200UL
-#define UVH_EVENT_OCCURRED0_LH_AOERR0_SHFT 10
-#define UVH_EVENT_OCCURRED0_LH_AOERR0_MASK 0x0000000000000400UL
-#define UVH_EVENT_OCCURRED0_RH_AOERR0_SHFT 11
-#define UVH_EVENT_OCCURRED0_RH_AOERR0_MASK 0x0000000000000800UL
-#define UVH_EVENT_OCCURRED0_XN_AOERR0_SHFT 12
-#define UVH_EVENT_OCCURRED0_XN_AOERR0_MASK 0x0000000000001000UL
-#define UVH_EVENT_OCCURRED0_SI_AOERR0_SHFT 13
-#define UVH_EVENT_OCCURRED0_SI_AOERR0_MASK 0x0000000000002000UL
-#define UVH_EVENT_OCCURRED0_LB_AOERR1_SHFT 14
-#define UVH_EVENT_OCCURRED0_LB_AOERR1_MASK 0x0000000000004000UL
-#define UVH_EVENT_OCCURRED0_GR0_AOERR1_SHFT 15
-#define UVH_EVENT_OCCURRED0_GR0_AOERR1_MASK 0x0000000000008000UL
-#define UVH_EVENT_OCCURRED0_GR1_AOERR1_SHFT 16
-#define UVH_EVENT_OCCURRED0_GR1_AOERR1_MASK 0x0000000000010000UL
-#define UVH_EVENT_OCCURRED0_LH_AOERR1_SHFT 17
-#define UVH_EVENT_OCCURRED0_LH_AOERR1_MASK 0x0000000000020000UL
-#define UVH_EVENT_OCCURRED0_RH_AOERR1_SHFT 18
-#define UVH_EVENT_OCCURRED0_RH_AOERR1_MASK 0x0000000000040000UL
-#define UVH_EVENT_OCCURRED0_XN_AOERR1_SHFT 19
-#define UVH_EVENT_OCCURRED0_XN_AOERR1_MASK 0x0000000000080000UL
-#define UVH_EVENT_OCCURRED0_SI_AOERR1_SHFT 20
-#define UVH_EVENT_OCCURRED0_SI_AOERR1_MASK 0x0000000000100000UL
-#define UVH_EVENT_OCCURRED0_RH_VPI_INT_SHFT 21
-#define UVH_EVENT_OCCURRED0_RH_VPI_INT_MASK 0x0000000000200000UL
-#define UVH_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_SHFT 22
-#define UVH_EVENT_OCCURRED0_SYSTEM_SHUTDOWN_INT_MASK 0x0000000000400000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_0_SHFT 23
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_0_MASK 0x0000000000800000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_1_SHFT 24
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_1_MASK 0x0000000001000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_2_SHFT 25
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_2_MASK 0x0000000002000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_3_SHFT 26
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_3_MASK 0x0000000004000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_4_SHFT 27
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_4_MASK 0x0000000008000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_5_SHFT 28
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_5_MASK 0x0000000010000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_6_SHFT 29
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_6_MASK 0x0000000020000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_7_SHFT 30
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_7_MASK 0x0000000040000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_8_SHFT 31
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_8_MASK 0x0000000080000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_9_SHFT 32
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_9_MASK 0x0000000100000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_10_SHFT 33
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_10_MASK 0x0000000200000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_11_SHFT 34
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_11_MASK 0x0000000400000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_12_SHFT 35
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_12_MASK 0x0000000800000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_13_SHFT 36
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_13_MASK 0x0000001000000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_14_SHFT 37
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_14_MASK 0x0000002000000000UL
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_15_SHFT 38
-#define UVH_EVENT_OCCURRED0_LB_IRQ_INT_15_MASK 0x0000004000000000UL
-#define UVH_EVENT_OCCURRED0_L1_NMI_INT_SHFT 39
-#define UVH_EVENT_OCCURRED0_L1_NMI_INT_MASK 0x0000008000000000UL
-#define UVH_EVENT_OCCURRED0_STOP_CLOCK_SHFT 40
-#define UVH_EVENT_OCCURRED0_STOP_CLOCK_MASK 0x0000010000000000UL
-#define UVH_EVENT_OCCURRED0_ASIC_TO_L1_SHFT 41
-#define UVH_EVENT_OCCURRED0_ASIC_TO_L1_MASK 0x0000020000000000UL
-#define UVH_EVENT_OCCURRED0_L1_TO_ASIC_SHFT 42
-#define UVH_EVENT_OCCURRED0_L1_TO_ASIC_MASK 0x0000040000000000UL
-#define UVH_EVENT_OCCURRED0_LTC_INT_SHFT 43
-#define UVH_EVENT_OCCURRED0_LTC_INT_MASK 0x0000080000000000UL
-#define UVH_EVENT_OCCURRED0_LA_SEQ_TRIGGER_SHFT 44
-#define UVH_EVENT_OCCURRED0_LA_SEQ_TRIGGER_MASK 0x0000100000000000UL
-#define UVH_EVENT_OCCURRED0_IPI_INT_SHFT 45
-#define UVH_EVENT_OCCURRED0_IPI_INT_MASK 0x0000200000000000UL
-#define UVH_EVENT_OCCURRED0_EXTIO_INT0_SHFT 46
-#define UVH_EVENT_OCCURRED0_EXTIO_INT0_MASK 0x0000400000000000UL
-#define UVH_EVENT_OCCURRED0_EXTIO_INT1_SHFT 47
-#define UVH_EVENT_OCCURRED0_EXTIO_INT1_MASK 0x0000800000000000UL
-#define UVH_EVENT_OCCURRED0_EXTIO_INT2_SHFT 48
-#define UVH_EVENT_OCCURRED0_EXTIO_INT2_MASK 0x0001000000000000UL
-#define UVH_EVENT_OCCURRED0_EXTIO_INT3_SHFT 49
-#define UVH_EVENT_OCCURRED0_EXTIO_INT3_MASK 0x0002000000000000UL
-#define UVH_EVENT_OCCURRED0_PROFILE_INT_SHFT 50
-#define UVH_EVENT_OCCURRED0_PROFILE_INT_MASK 0x0004000000000000UL
-#define UVH_EVENT_OCCURRED0_RTC0_SHFT 51
-#define UVH_EVENT_OCCURRED0_RTC0_MASK 0x0008000000000000UL
-#define UVH_EVENT_OCCURRED0_RTC1_SHFT 52
-#define UVH_EVENT_OCCURRED0_RTC1_MASK 0x0010000000000000UL
-#define UVH_EVENT_OCCURRED0_RTC2_SHFT 53
-#define UVH_EVENT_OCCURRED0_RTC2_MASK 0x0020000000000000UL
-#define UVH_EVENT_OCCURRED0_RTC3_SHFT 54
-#define UVH_EVENT_OCCURRED0_RTC3_MASK 0x0040000000000000UL
-#define UVH_EVENT_OCCURRED0_BAU_DATA_SHFT 55
-#define UVH_EVENT_OCCURRED0_BAU_DATA_MASK 0x0080000000000000UL
-#define UVH_EVENT_OCCURRED0_POWER_MANAGEMENT_REQ_SHFT 56
-#define UVH_EVENT_OCCURRED0_POWER_MANAGEMENT_REQ_MASK 0x0100000000000000UL
-union uvh_event_occurred0_u {
- unsigned long v;
- struct uvh_event_occurred0_s {
- unsigned long lb_hcerr : 1; /* RW, W1C */
- unsigned long gr0_hcerr : 1; /* RW, W1C */
- unsigned long gr1_hcerr : 1; /* RW, W1C */
- unsigned long lh_hcerr : 1; /* RW, W1C */
- unsigned long rh_hcerr : 1; /* RW, W1C */
- unsigned long xn_hcerr : 1; /* RW, W1C */
- unsigned long si_hcerr : 1; /* RW, W1C */
- unsigned long lb_aoerr0 : 1; /* RW, W1C */
- unsigned long gr0_aoerr0 : 1; /* RW, W1C */
- unsigned long gr1_aoerr0 : 1; /* RW, W1C */
- unsigned long lh_aoerr0 : 1; /* RW, W1C */
- unsigned long rh_aoerr0 : 1; /* RW, W1C */
- unsigned long xn_aoerr0 : 1; /* RW, W1C */
- unsigned long si_aoerr0 : 1; /* RW, W1C */
- unsigned long lb_aoerr1 : 1; /* RW, W1C */
- unsigned long gr0_aoerr1 : 1; /* RW, W1C */
- unsigned long gr1_aoerr1 : 1; /* RW, W1C */
- unsigned long lh_aoerr1 : 1; /* RW, W1C */
- unsigned long rh_aoerr1 : 1; /* RW, W1C */
- unsigned long xn_aoerr1 : 1; /* RW, W1C */
- unsigned long si_aoerr1 : 1; /* RW, W1C */
- unsigned long rh_vpi_int : 1; /* RW, W1C */
- unsigned long system_shutdown_int : 1; /* RW, W1C */
- unsigned long lb_irq_int_0 : 1; /* RW, W1C */
- unsigned long lb_irq_int_1 : 1; /* RW, W1C */
- unsigned long lb_irq_int_2 : 1; /* RW, W1C */
- unsigned long lb_irq_int_3 : 1; /* RW, W1C */
- unsigned long lb_irq_int_4 : 1; /* RW, W1C */
- unsigned long lb_irq_int_5 : 1; /* RW, W1C */
- unsigned long lb_irq_int_6 : 1; /* RW, W1C */
- unsigned long lb_irq_int_7 : 1; /* RW, W1C */
- unsigned long lb_irq_int_8 : 1; /* RW, W1C */
- unsigned long lb_irq_int_9 : 1; /* RW, W1C */
- unsigned long lb_irq_int_10 : 1; /* RW, W1C */
- unsigned long lb_irq_int_11 : 1; /* RW, W1C */
- unsigned long lb_irq_int_12 : 1; /* RW, W1C */
- unsigned long lb_irq_int_13 : 1; /* RW, W1C */
- unsigned long lb_irq_int_14 : 1; /* RW, W1C */
- unsigned long lb_irq_int_15 : 1; /* RW, W1C */
- unsigned long l1_nmi_int : 1; /* RW, W1C */
- unsigned long stop_clock : 1; /* RW, W1C */
- unsigned long asic_to_l1 : 1; /* RW, W1C */
- unsigned long l1_to_asic : 1; /* RW, W1C */
- unsigned long ltc_int : 1; /* RW, W1C */
- unsigned long la_seq_trigger : 1; /* RW, W1C */
- unsigned long ipi_int : 1; /* RW, W1C */
- unsigned long extio_int0 : 1; /* RW, W1C */
- unsigned long extio_int1 : 1; /* RW, W1C */
- unsigned long extio_int2 : 1; /* RW, W1C */
- unsigned long extio_int3 : 1; /* RW, W1C */
- unsigned long profile_int : 1; /* RW, W1C */
- unsigned long rtc0 : 1; /* RW, W1C */
- unsigned long rtc1 : 1; /* RW, W1C */
- unsigned long rtc2 : 1; /* RW, W1C */
- unsigned long rtc3 : 1; /* RW, W1C */
- unsigned long bau_data : 1; /* RW, W1C */
- unsigned long power_management_req : 1; /* RW, W1C */
- unsigned long rsvd_57_63 : 7; /* */
- } s;
+#define UVH_EVENT_OCCURRED1_ALIAS 0x70088UL
+
+
+/* ========================================================================= */
+/* UVH_EVENT_OCCURRED2 */
+/* ========================================================================= */
+#define UVH_EVENT_OCCURRED2 0x70100UL
+
+
+
+/* UVYH common defines */
+#define UVYH_EVENT_OCCURRED2_RTC_INTERVAL_INT_SHFT 0
+#define UVYH_EVENT_OCCURRED2_RTC_INTERVAL_INT_MASK 0x0000000000000001UL
+#define UVYH_EVENT_OCCURRED2_BAU_DASHBOARD_INT_SHFT 1
+#define UVYH_EVENT_OCCURRED2_BAU_DASHBOARD_INT_MASK 0x0000000000000002UL
+#define UVYH_EVENT_OCCURRED2_RTC_0_SHFT 2
+#define UVYH_EVENT_OCCURRED2_RTC_0_MASK 0x0000000000000004UL
+#define UVYH_EVENT_OCCURRED2_RTC_1_SHFT 3
+#define UVYH_EVENT_OCCURRED2_RTC_1_MASK 0x0000000000000008UL
+#define UVYH_EVENT_OCCURRED2_RTC_2_SHFT 4
+#define UVYH_EVENT_OCCURRED2_RTC_2_MASK 0x0000000000000010UL
+#define UVYH_EVENT_OCCURRED2_RTC_3_SHFT 5
+#define UVYH_EVENT_OCCURRED2_RTC_3_MASK 0x0000000000000020UL
+#define UVYH_EVENT_OCCURRED2_RTC_4_SHFT 6
+#define UVYH_EVENT_OCCURRED2_RTC_4_MASK 0x0000000000000040UL
+#define UVYH_EVENT_OCCURRED2_RTC_5_SHFT 7
+#define UVYH_EVENT_OCCURRED2_RTC_5_MASK 0x0000000000000080UL
+#define UVYH_EVENT_OCCURRED2_RTC_6_SHFT 8
+#define UVYH_EVENT_OCCURRED2_RTC_6_MASK 0x0000000000000100UL
+#define UVYH_EVENT_OCCURRED2_RTC_7_SHFT 9
+#define UVYH_EVENT_OCCURRED2_RTC_7_MASK 0x0000000000000200UL
+#define UVYH_EVENT_OCCURRED2_RTC_8_SHFT 10
+#define UVYH_EVENT_OCCURRED2_RTC_8_MASK 0x0000000000000400UL
+#define UVYH_EVENT_OCCURRED2_RTC_9_SHFT 11
+#define UVYH_EVENT_OCCURRED2_RTC_9_MASK 0x0000000000000800UL
+#define UVYH_EVENT_OCCURRED2_RTC_10_SHFT 12
+#define UVYH_EVENT_OCCURRED2_RTC_10_MASK 0x0000000000001000UL
+#define UVYH_EVENT_OCCURRED2_RTC_11_SHFT 13
+#define UVYH_EVENT_OCCURRED2_RTC_11_MASK 0x0000000000002000UL
+#define UVYH_EVENT_OCCURRED2_RTC_12_SHFT 14
+#define UVYH_EVENT_OCCURRED2_RTC_12_MASK 0x0000000000004000UL
+#define UVYH_EVENT_OCCURRED2_RTC_13_SHFT 15
+#define UVYH_EVENT_OCCURRED2_RTC_13_MASK 0x0000000000008000UL
+#define UVYH_EVENT_OCCURRED2_RTC_14_SHFT 16
+#define UVYH_EVENT_OCCURRED2_RTC_14_MASK 0x0000000000010000UL
+#define UVYH_EVENT_OCCURRED2_RTC_15_SHFT 17
+#define UVYH_EVENT_OCCURRED2_RTC_15_MASK 0x0000000000020000UL
+#define UVYH_EVENT_OCCURRED2_RTC_16_SHFT 18
+#define UVYH_EVENT_OCCURRED2_RTC_16_MASK 0x0000000000040000UL
+#define UVYH_EVENT_OCCURRED2_RTC_17_SHFT 19
+#define UVYH_EVENT_OCCURRED2_RTC_17_MASK 0x0000000000080000UL
+#define UVYH_EVENT_OCCURRED2_RTC_18_SHFT 20
+#define UVYH_EVENT_OCCURRED2_RTC_18_MASK 0x0000000000100000UL
+#define UVYH_EVENT_OCCURRED2_RTC_19_SHFT 21
+#define UVYH_EVENT_OCCURRED2_RTC_19_MASK 0x0000000000200000UL
+#define UVYH_EVENT_OCCURRED2_RTC_20_SHFT 22
+#define UVYH_EVENT_OCCURRED2_RTC_20_MASK 0x0000000000400000UL
+#define UVYH_EVENT_OCCURRED2_RTC_21_SHFT 23
+#define UVYH_EVENT_OCCURRED2_RTC_21_MASK 0x0000000000800000UL
+#define UVYH_EVENT_OCCURRED2_RTC_22_SHFT 24
+#define UVYH_EVENT_OCCURRED2_RTC_22_MASK 0x0000000001000000UL
+#define UVYH_EVENT_OCCURRED2_RTC_23_SHFT 25
+#define UVYH_EVENT_OCCURRED2_RTC_23_MASK 0x0000000002000000UL
+#define UVYH_EVENT_OCCURRED2_RTC_24_SHFT 26
+#define UVYH_EVENT_OCCURRED2_RTC_24_MASK 0x0000000004000000UL
+#define UVYH_EVENT_OCCURRED2_RTC_25_SHFT 27
+#define UVYH_EVENT_OCCURRED2_RTC_25_MASK 0x0000000008000000UL
+#define UVYH_EVENT_OCCURRED2_RTC_26_SHFT 28
+#define UVYH_EVENT_OCCURRED2_RTC_26_MASK 0x0000000010000000UL
+#define UVYH_EVENT_OCCURRED2_RTC_27_SHFT 29
+#define UVYH_EVENT_OCCURRED2_RTC_27_MASK 0x0000000020000000UL
+#define UVYH_EVENT_OCCURRED2_RTC_28_SHFT 30
+#define UVYH_EVENT_OCCURRED2_RTC_28_MASK 0x0000000040000000UL
+#define UVYH_EVENT_OCCURRED2_RTC_29_SHFT 31
+#define UVYH_EVENT_OCCURRED2_RTC_29_MASK 0x0000000080000000UL
+#define UVYH_EVENT_OCCURRED2_RTC_30_SHFT 32
+#define UVYH_EVENT_OCCURRED2_RTC_30_MASK 0x0000000100000000UL
+#define UVYH_EVENT_OCCURRED2_RTC_31_SHFT 33
+#define UVYH_EVENT_OCCURRED2_RTC_31_MASK 0x0000000200000000UL
+
+/* UV4 unique defines */
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT0_SHFT 0
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT0_MASK 0x0000000000000001UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT1_SHFT 1
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT1_MASK 0x0000000000000002UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT2_SHFT 2
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT2_MASK 0x0000000000000004UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT3_SHFT 3
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT3_MASK 0x0000000000000008UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT4_SHFT 4
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT4_MASK 0x0000000000000010UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT5_SHFT 5
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT5_MASK 0x0000000000000020UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT6_SHFT 6
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT6_MASK 0x0000000000000040UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT7_SHFT 7
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT7_MASK 0x0000000000000080UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT8_SHFT 8
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT8_MASK 0x0000000000000100UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT9_SHFT 9
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT9_MASK 0x0000000000000200UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT10_SHFT 10
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT10_MASK 0x0000000000000400UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT11_SHFT 11
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT11_MASK 0x0000000000000800UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT12_SHFT 12
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT12_MASK 0x0000000000001000UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT13_SHFT 13
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT13_MASK 0x0000000000002000UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT14_SHFT 14
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT14_MASK 0x0000000000004000UL
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT15_SHFT 15
+#define UV4H_EVENT_OCCURRED2_MESSAGE_ACCELERATOR_INT15_MASK 0x0000000000008000UL
+#define UV4H_EVENT_OCCURRED2_RTC_INTERVAL_INT_SHFT 16
+#define UV4H_EVENT_OCCURRED2_RTC_INTERVAL_INT_MASK 0x0000000000010000UL
+#define UV4H_EVENT_OCCURRED2_BAU_DASHBOARD_INT_SHFT 17
+#define UV4H_EVENT_OCCURRED2_BAU_DASHBOARD_INT_MASK 0x0000000000020000UL
+#define UV4H_EVENT_OCCURRED2_RTC_0_SHFT 18
+#define UV4H_EVENT_OCCURRED2_RTC_0_MASK 0x0000000000040000UL
+#define UV4H_EVENT_OCCURRED2_RTC_1_SHFT 19
+#define UV4H_EVENT_OCCURRED2_RTC_1_MASK 0x0000000000080000UL
+#define UV4H_EVENT_OCCURRED2_RTC_2_SHFT 20
+#define UV4H_EVENT_OCCURRED2_RTC_2_MASK 0x0000000000100000UL
+#define UV4H_EVENT_OCCURRED2_RTC_3_SHFT 21
+#define UV4H_EVENT_OCCURRED2_RTC_3_MASK 0x0000000000200000UL
+#define UV4H_EVENT_OCCURRED2_RTC_4_SHFT 22
+#define UV4H_EVENT_OCCURRED2_RTC_4_MASK 0x0000000000400000UL
+#define UV4H_EVENT_OCCURRED2_RTC_5_SHFT 23
+#define UV4H_EVENT_OCCURRED2_RTC_5_MASK 0x0000000000800000UL
+#define UV4H_EVENT_OCCURRED2_RTC_6_SHFT 24
+#define UV4H_EVENT_OCCURRED2_RTC_6_MASK 0x0000000001000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_7_SHFT 25
+#define UV4H_EVENT_OCCURRED2_RTC_7_MASK 0x0000000002000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_8_SHFT 26
+#define UV4H_EVENT_OCCURRED2_RTC_8_MASK 0x0000000004000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_9_SHFT 27
+#define UV4H_EVENT_OCCURRED2_RTC_9_MASK 0x0000000008000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_10_SHFT 28
+#define UV4H_EVENT_OCCURRED2_RTC_10_MASK 0x0000000010000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_11_SHFT 29
+#define UV4H_EVENT_OCCURRED2_RTC_11_MASK 0x0000000020000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_12_SHFT 30
+#define UV4H_EVENT_OCCURRED2_RTC_12_MASK 0x0000000040000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_13_SHFT 31
+#define UV4H_EVENT_OCCURRED2_RTC_13_MASK 0x0000000080000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_14_SHFT 32
+#define UV4H_EVENT_OCCURRED2_RTC_14_MASK 0x0000000100000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_15_SHFT 33
+#define UV4H_EVENT_OCCURRED2_RTC_15_MASK 0x0000000200000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_16_SHFT 34
+#define UV4H_EVENT_OCCURRED2_RTC_16_MASK 0x0000000400000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_17_SHFT 35
+#define UV4H_EVENT_OCCURRED2_RTC_17_MASK 0x0000000800000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_18_SHFT 36
+#define UV4H_EVENT_OCCURRED2_RTC_18_MASK 0x0000001000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_19_SHFT 37
+#define UV4H_EVENT_OCCURRED2_RTC_19_MASK 0x0000002000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_20_SHFT 38
+#define UV4H_EVENT_OCCURRED2_RTC_20_MASK 0x0000004000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_21_SHFT 39
+#define UV4H_EVENT_OCCURRED2_RTC_21_MASK 0x0000008000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_22_SHFT 40
+#define UV4H_EVENT_OCCURRED2_RTC_22_MASK 0x0000010000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_23_SHFT 41
+#define UV4H_EVENT_OCCURRED2_RTC_23_MASK 0x0000020000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_24_SHFT 42
+#define UV4H_EVENT_OCCURRED2_RTC_24_MASK 0x0000040000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_25_SHFT 43
+#define UV4H_EVENT_OCCURRED2_RTC_25_MASK 0x0000080000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_26_SHFT 44
+#define UV4H_EVENT_OCCURRED2_RTC_26_MASK 0x0000100000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_27_SHFT 45
+#define UV4H_EVENT_OCCURRED2_RTC_27_MASK 0x0000200000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_28_SHFT 46
+#define UV4H_EVENT_OCCURRED2_RTC_28_MASK 0x0000400000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_29_SHFT 47
+#define UV4H_EVENT_OCCURRED2_RTC_29_MASK 0x0000800000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_30_SHFT 48
+#define UV4H_EVENT_OCCURRED2_RTC_30_MASK 0x0001000000000000UL
+#define UV4H_EVENT_OCCURRED2_RTC_31_SHFT 49
+#define UV4H_EVENT_OCCURRED2_RTC_31_MASK 0x0002000000000000UL
+
+/* UV3 unique defines */
+#define UV3H_EVENT_OCCURRED2_RTC_0_SHFT 0
+#define UV3H_EVENT_OCCURRED2_RTC_0_MASK 0x0000000000000001UL
+#define UV3H_EVENT_OCCURRED2_RTC_1_SHFT 1
+#define UV3H_EVENT_OCCURRED2_RTC_1_MASK 0x0000000000000002UL
+#define UV3H_EVENT_OCCURRED2_RTC_2_SHFT 2
+#define UV3H_EVENT_OCCURRED2_RTC_2_MASK 0x0000000000000004UL
+#define UV3H_EVENT_OCCURRED2_RTC_3_SHFT 3
+#define UV3H_EVENT_OCCURRED2_RTC_3_MASK 0x0000000000000008UL
+#define UV3H_EVENT_OCCURRED2_RTC_4_SHFT 4
+#define UV3H_EVENT_OCCURRED2_RTC_4_MASK 0x0000000000000010UL
+#define UV3H_EVENT_OCCURRED2_RTC_5_SHFT 5
+#define UV3H_EVENT_OCCURRED2_RTC_5_MASK 0x0000000000000020UL
+#define UV3H_EVENT_OCCURRED2_RTC_6_SHFT 6
+#define UV3H_EVENT_OCCURRED2_RTC_6_MASK 0x0000000000000040UL
+#define UV3H_EVENT_OCCURRED2_RTC_7_SHFT 7
+#define UV3H_EVENT_OCCURRED2_RTC_7_MASK 0x0000000000000080UL
+#define UV3H_EVENT_OCCURRED2_RTC_8_SHFT 8
+#define UV3H_EVENT_OCCURRED2_RTC_8_MASK 0x0000000000000100UL
+#define UV3H_EVENT_OCCURRED2_RTC_9_SHFT 9
+#define UV3H_EVENT_OCCURRED2_RTC_9_MASK 0x0000000000000200UL
+#define UV3H_EVENT_OCCURRED2_RTC_10_SHFT 10
+#define UV3H_EVENT_OCCURRED2_RTC_10_MASK 0x0000000000000400UL
+#define UV3H_EVENT_OCCURRED2_RTC_11_SHFT 11
+#define UV3H_EVENT_OCCURRED2_RTC_11_MASK 0x0000000000000800UL
+#define UV3H_EVENT_OCCURRED2_RTC_12_SHFT 12
+#define UV3H_EVENT_OCCURRED2_RTC_12_MASK 0x0000000000001000UL
+#define UV3H_EVENT_OCCURRED2_RTC_13_SHFT 13
+#define UV3H_EVENT_OCCURRED2_RTC_13_MASK 0x0000000000002000UL
+#define UV3H_EVENT_OCCURRED2_RTC_14_SHFT 14
+#define UV3H_EVENT_OCCURRED2_RTC_14_MASK 0x0000000000004000UL
+#define UV3H_EVENT_OCCURRED2_RTC_15_SHFT 15
+#define UV3H_EVENT_OCCURRED2_RTC_15_MASK 0x0000000000008000UL
+#define UV3H_EVENT_OCCURRED2_RTC_16_SHFT 16
+#define UV3H_EVENT_OCCURRED2_RTC_16_MASK 0x0000000000010000UL
+#define UV3H_EVENT_OCCURRED2_RTC_17_SHFT 17
+#define UV3H_EVENT_OCCURRED2_RTC_17_MASK 0x0000000000020000UL
+#define UV3H_EVENT_OCCURRED2_RTC_18_SHFT 18
+#define UV3H_EVENT_OCCURRED2_RTC_18_MASK 0x0000000000040000UL
+#define UV3H_EVENT_OCCURRED2_RTC_19_SHFT 19
+#define UV3H_EVENT_OCCURRED2_RTC_19_MASK 0x0000000000080000UL
+#define UV3H_EVENT_OCCURRED2_RTC_20_SHFT 20
+#define UV3H_EVENT_OCCURRED2_RTC_20_MASK 0x0000000000100000UL
+#define UV3H_EVENT_OCCURRED2_RTC_21_SHFT 21
+#define UV3H_EVENT_OCCURRED2_RTC_21_MASK 0x0000000000200000UL
+#define UV3H_EVENT_OCCURRED2_RTC_22_SHFT 22
+#define UV3H_EVENT_OCCURRED2_RTC_22_MASK 0x0000000000400000UL
+#define UV3H_EVENT_OCCURRED2_RTC_23_SHFT 23
+#define UV3H_EVENT_OCCURRED2_RTC_23_MASK 0x0000000000800000UL
+#define UV3H_EVENT_OCCURRED2_RTC_24_SHFT 24
+#define UV3H_EVENT_OCCURRED2_RTC_24_MASK 0x0000000001000000UL
+#define UV3H_EVENT_OCCURRED2_RTC_25_SHFT 25
+#define UV3H_EVENT_OCCURRED2_RTC_25_MASK 0x0000000002000000UL
+#define UV3H_EVENT_OCCURRED2_RTC_26_SHFT 26
+#define UV3H_EVENT_OCCURRED2_RTC_26_MASK 0x0000000004000000UL
+#define UV3H_EVENT_OCCURRED2_RTC_27_SHFT 27
+#define UV3H_EVENT_OCCURRED2_RTC_27_MASK 0x0000000008000000UL
+#define UV3H_EVENT_OCCURRED2_RTC_28_SHFT 28
+#define UV3H_EVENT_OCCURRED2_RTC_28_MASK 0x0000000010000000UL
+#define UV3H_EVENT_OCCURRED2_RTC_29_SHFT 29
+#define UV3H_EVENT_OCCURRED2_RTC_29_MASK 0x0000000020000000UL
+#define UV3H_EVENT_OCCURRED2_RTC_30_SHFT 30
+#define UV3H_EVENT_OCCURRED2_RTC_30_MASK 0x0000000040000000UL
+#define UV3H_EVENT_OCCURRED2_RTC_31_SHFT 31
+#define UV3H_EVENT_OCCURRED2_RTC_31_MASK 0x0000000080000000UL
+
+/* UV2 unique defines */
+#define UV2H_EVENT_OCCURRED2_RTC_0_SHFT 0
+#define UV2H_EVENT_OCCURRED2_RTC_0_MASK 0x0000000000000001UL
+#define UV2H_EVENT_OCCURRED2_RTC_1_SHFT 1
+#define UV2H_EVENT_OCCURRED2_RTC_1_MASK 0x0000000000000002UL
+#define UV2H_EVENT_OCCURRED2_RTC_2_SHFT 2
+#define UV2H_EVENT_OCCURRED2_RTC_2_MASK 0x0000000000000004UL
+#define UV2H_EVENT_OCCURRED2_RTC_3_SHFT 3
+#define UV2H_EVENT_OCCURRED2_RTC_3_MASK 0x0000000000000008UL
+#define UV2H_EVENT_OCCURRED2_RTC_4_SHFT 4
+#define UV2H_EVENT_OCCURRED2_RTC_4_MASK 0x0000000000000010UL
+#define UV2H_EVENT_OCCURRED2_RTC_5_SHFT 5
+#define UV2H_EVENT_OCCURRED2_RTC_5_MASK 0x0000000000000020UL
+#define UV2H_EVENT_OCCURRED2_RTC_6_SHFT 6
+#define UV2H_EVENT_OCCURRED2_RTC_6_MASK 0x0000000000000040UL
+#define UV2H_EVENT_OCCURRED2_RTC_7_SHFT 7
+#define UV2H_EVENT_OCCURRED2_RTC_7_MASK 0x0000000000000080UL
+#define UV2H_EVENT_OCCURRED2_RTC_8_SHFT 8
+#define UV2H_EVENT_OCCURRED2_RTC_8_MASK 0x0000000000000100UL
+#define UV2H_EVENT_OCCURRED2_RTC_9_SHFT 9
+#define UV2H_EVENT_OCCURRED2_RTC_9_MASK 0x0000000000000200UL
+#define UV2H_EVENT_OCCURRED2_RTC_10_SHFT 10
+#define UV2H_EVENT_OCCURRED2_RTC_10_MASK 0x0000000000000400UL
+#define UV2H_EVENT_OCCURRED2_RTC_11_SHFT 11
+#define UV2H_EVENT_OCCURRED2_RTC_11_MASK 0x0000000000000800UL
+#define UV2H_EVENT_OCCURRED2_RTC_12_SHFT 12
+#define UV2H_EVENT_OCCURRED2_RTC_12_MASK 0x0000000000001000UL
+#define UV2H_EVENT_OCCURRED2_RTC_13_SHFT 13
+#define UV2H_EVENT_OCCURRED2_RTC_13_MASK 0x0000000000002000UL
+#define UV2H_EVENT_OCCURRED2_RTC_14_SHFT 14
+#define UV2H_EVENT_OCCURRED2_RTC_14_MASK 0x0000000000004000UL
+#define UV2H_EVENT_OCCURRED2_RTC_15_SHFT 15
+#define UV2H_EVENT_OCCURRED2_RTC_15_MASK 0x0000000000008000UL
+#define UV2H_EVENT_OCCURRED2_RTC_16_SHFT 16
+#define UV2H_EVENT_OCCURRED2_RTC_16_MASK 0x0000000000010000UL
+#define UV2H_EVENT_OCCURRED2_RTC_17_SHFT 17
+#define UV2H_EVENT_OCCURRED2_RTC_17_MASK 0x0000000000020000UL
+#define UV2H_EVENT_OCCURRED2_RTC_18_SHFT 18
+#define UV2H_EVENT_OCCURRED2_RTC_18_MASK 0x0000000000040000UL
+#define UV2H_EVENT_OCCURRED2_RTC_19_SHFT 19
+#define UV2H_EVENT_OCCURRED2_RTC_19_MASK 0x0000000000080000UL
+#define UV2H_EVENT_OCCURRED2_RTC_20_SHFT 20
+#define UV2H_EVENT_OCCURRED2_RTC_20_MASK 0x0000000000100000UL
+#define UV2H_EVENT_OCCURRED2_RTC_21_SHFT 21
+#define UV2H_EVENT_OCCURRED2_RTC_21_MASK 0x0000000000200000UL
+#define UV2H_EVENT_OCCURRED2_RTC_22_SHFT 22
+#define UV2H_EVENT_OCCURRED2_RTC_22_MASK 0x0000000000400000UL
+#define UV2H_EVENT_OCCURRED2_RTC_23_SHFT 23
+#define UV2H_EVENT_OCCURRED2_RTC_23_MASK 0x0000000000800000UL
+#define UV2H_EVENT_OCCURRED2_RTC_24_SHFT 24
+#define UV2H_EVENT_OCCURRED2_RTC_24_MASK 0x0000000001000000UL
+#define UV2H_EVENT_OCCURRED2_RTC_25_SHFT 25
+#define UV2H_EVENT_OCCURRED2_RTC_25_MASK 0x0000000002000000UL
+#define UV2H_EVENT_OCCURRED2_RTC_26_SHFT 26
+#define UV2H_EVENT_OCCURRED2_RTC_26_MASK 0x0000000004000000UL
+#define UV2H_EVENT_OCCURRED2_RTC_27_SHFT 27
+#define UV2H_EVENT_OCCURRED2_RTC_27_MASK 0x0000000008000000UL
+#define UV2H_EVENT_OCCURRED2_RTC_28_SHFT 28
+#define UV2H_EVENT_OCCURRED2_RTC_28_MASK 0x0000000010000000UL
+#define UV2H_EVENT_OCCURRED2_RTC_29_SHFT 29
+#define UV2H_EVENT_OCCURRED2_RTC_29_MASK 0x0000000020000000UL
+#define UV2H_EVENT_OCCURRED2_RTC_30_SHFT 30
+#define UV2H_EVENT_OCCURRED2_RTC_30_MASK 0x0000000040000000UL
+#define UV2H_EVENT_OCCURRED2_RTC_31_SHFT 31
+#define UV2H_EVENT_OCCURRED2_RTC_31_MASK 0x0000000080000000UL
+
+#define UVH_EVENT_OCCURRED2_RTC_1_MASK ( \
+ is_uv(UV5) ? 0x0000000000000008UL : \
+ is_uv(UV4) ? 0x0000000000080000UL : \
+ is_uv(UV3) ? 0x0000000000000002UL : \
+ is_uv(UV2) ? 0x0000000000000002UL : \
+ 0)
+#define UVH_EVENT_OCCURRED2_RTC_1_SHFT ( \
+ is_uv(UV5) ? 3 : \
+ is_uv(UV4) ? 19 : \
+ is_uv(UV3) ? 1 : \
+ is_uv(UV2) ? 1 : \
+ -1)
+
+union uvyh_event_occurred2_u {
+ unsigned long v;
+
+ /* UVYH common struct */
+ struct uvyh_event_occurred2_s {
+ unsigned long rtc_interval_int:1; /* RW */
+ unsigned long bau_dashboard_int:1; /* RW */
+ unsigned long rtc_0:1; /* RW */
+ unsigned long rtc_1:1; /* RW */
+ unsigned long rtc_2:1; /* RW */
+ unsigned long rtc_3:1; /* RW */
+ unsigned long rtc_4:1; /* RW */
+ unsigned long rtc_5:1; /* RW */
+ unsigned long rtc_6:1; /* RW */
+ unsigned long rtc_7:1; /* RW */
+ unsigned long rtc_8:1; /* RW */
+ unsigned long rtc_9:1; /* RW */
+ unsigned long rtc_10:1; /* RW */
+ unsigned long rtc_11:1; /* RW */
+ unsigned long rtc_12:1; /* RW */
+ unsigned long rtc_13:1; /* RW */
+ unsigned long rtc_14:1; /* RW */
+ unsigned long rtc_15:1; /* RW */
+ unsigned long rtc_16:1; /* RW */
+ unsigned long rtc_17:1; /* RW */
+ unsigned long rtc_18:1; /* RW */
+ unsigned long rtc_19:1; /* RW */
+ unsigned long rtc_20:1; /* RW */
+ unsigned long rtc_21:1; /* RW */
+ unsigned long rtc_22:1; /* RW */
+ unsigned long rtc_23:1; /* RW */
+ unsigned long rtc_24:1; /* RW */
+ unsigned long rtc_25:1; /* RW */
+ unsigned long rtc_26:1; /* RW */
+ unsigned long rtc_27:1; /* RW */
+ unsigned long rtc_28:1; /* RW */
+ unsigned long rtc_29:1; /* RW */
+ unsigned long rtc_30:1; /* RW */
+ unsigned long rtc_31:1; /* RW */
+ unsigned long rsvd_34_63:30;
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_event_occurred2_s {
+ unsigned long rtc_interval_int:1; /* RW */
+ unsigned long bau_dashboard_int:1; /* RW */
+ unsigned long rtc_0:1; /* RW */
+ unsigned long rtc_1:1; /* RW */
+ unsigned long rtc_2:1; /* RW */
+ unsigned long rtc_3:1; /* RW */
+ unsigned long rtc_4:1; /* RW */
+ unsigned long rtc_5:1; /* RW */
+ unsigned long rtc_6:1; /* RW */
+ unsigned long rtc_7:1; /* RW */
+ unsigned long rtc_8:1; /* RW */
+ unsigned long rtc_9:1; /* RW */
+ unsigned long rtc_10:1; /* RW */
+ unsigned long rtc_11:1; /* RW */
+ unsigned long rtc_12:1; /* RW */
+ unsigned long rtc_13:1; /* RW */
+ unsigned long rtc_14:1; /* RW */
+ unsigned long rtc_15:1; /* RW */
+ unsigned long rtc_16:1; /* RW */
+ unsigned long rtc_17:1; /* RW */
+ unsigned long rtc_18:1; /* RW */
+ unsigned long rtc_19:1; /* RW */
+ unsigned long rtc_20:1; /* RW */
+ unsigned long rtc_21:1; /* RW */
+ unsigned long rtc_22:1; /* RW */
+ unsigned long rtc_23:1; /* RW */
+ unsigned long rtc_24:1; /* RW */
+ unsigned long rtc_25:1; /* RW */
+ unsigned long rtc_26:1; /* RW */
+ unsigned long rtc_27:1; /* RW */
+ unsigned long rtc_28:1; /* RW */
+ unsigned long rtc_29:1; /* RW */
+ unsigned long rtc_30:1; /* RW */
+ unsigned long rtc_31:1; /* RW */
+ unsigned long rsvd_34_63:30;
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_event_occurred2_s {
+ unsigned long message_accelerator_int0:1; /* RW */
+ unsigned long message_accelerator_int1:1; /* RW */
+ unsigned long message_accelerator_int2:1; /* RW */
+ unsigned long message_accelerator_int3:1; /* RW */
+ unsigned long message_accelerator_int4:1; /* RW */
+ unsigned long message_accelerator_int5:1; /* RW */
+ unsigned long message_accelerator_int6:1; /* RW */
+ unsigned long message_accelerator_int7:1; /* RW */
+ unsigned long message_accelerator_int8:1; /* RW */
+ unsigned long message_accelerator_int9:1; /* RW */
+ unsigned long message_accelerator_int10:1; /* RW */
+ unsigned long message_accelerator_int11:1; /* RW */
+ unsigned long message_accelerator_int12:1; /* RW */
+ unsigned long message_accelerator_int13:1; /* RW */
+ unsigned long message_accelerator_int14:1; /* RW */
+ unsigned long message_accelerator_int15:1; /* RW */
+ unsigned long rtc_interval_int:1; /* RW */
+ unsigned long bau_dashboard_int:1; /* RW */
+ unsigned long rtc_0:1; /* RW */
+ unsigned long rtc_1:1; /* RW */
+ unsigned long rtc_2:1; /* RW */
+ unsigned long rtc_3:1; /* RW */
+ unsigned long rtc_4:1; /* RW */
+ unsigned long rtc_5:1; /* RW */
+ unsigned long rtc_6:1; /* RW */
+ unsigned long rtc_7:1; /* RW */
+ unsigned long rtc_8:1; /* RW */
+ unsigned long rtc_9:1; /* RW */
+ unsigned long rtc_10:1; /* RW */
+ unsigned long rtc_11:1; /* RW */
+ unsigned long rtc_12:1; /* RW */
+ unsigned long rtc_13:1; /* RW */
+ unsigned long rtc_14:1; /* RW */
+ unsigned long rtc_15:1; /* RW */
+ unsigned long rtc_16:1; /* RW */
+ unsigned long rtc_17:1; /* RW */
+ unsigned long rtc_18:1; /* RW */
+ unsigned long rtc_19:1; /* RW */
+ unsigned long rtc_20:1; /* RW */
+ unsigned long rtc_21:1; /* RW */
+ unsigned long rtc_22:1; /* RW */
+ unsigned long rtc_23:1; /* RW */
+ unsigned long rtc_24:1; /* RW */
+ unsigned long rtc_25:1; /* RW */
+ unsigned long rtc_26:1; /* RW */
+ unsigned long rtc_27:1; /* RW */
+ unsigned long rtc_28:1; /* RW */
+ unsigned long rtc_29:1; /* RW */
+ unsigned long rtc_30:1; /* RW */
+ unsigned long rtc_31:1; /* RW */
+ unsigned long rsvd_50_63:14;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_event_occurred2_s {
+ unsigned long rtc_0:1; /* RW */
+ unsigned long rtc_1:1; /* RW */
+ unsigned long rtc_2:1; /* RW */
+ unsigned long rtc_3:1; /* RW */
+ unsigned long rtc_4:1; /* RW */
+ unsigned long rtc_5:1; /* RW */
+ unsigned long rtc_6:1; /* RW */
+ unsigned long rtc_7:1; /* RW */
+ unsigned long rtc_8:1; /* RW */
+ unsigned long rtc_9:1; /* RW */
+ unsigned long rtc_10:1; /* RW */
+ unsigned long rtc_11:1; /* RW */
+ unsigned long rtc_12:1; /* RW */
+ unsigned long rtc_13:1; /* RW */
+ unsigned long rtc_14:1; /* RW */
+ unsigned long rtc_15:1; /* RW */
+ unsigned long rtc_16:1; /* RW */
+ unsigned long rtc_17:1; /* RW */
+ unsigned long rtc_18:1; /* RW */
+ unsigned long rtc_19:1; /* RW */
+ unsigned long rtc_20:1; /* RW */
+ unsigned long rtc_21:1; /* RW */
+ unsigned long rtc_22:1; /* RW */
+ unsigned long rtc_23:1; /* RW */
+ unsigned long rtc_24:1; /* RW */
+ unsigned long rtc_25:1; /* RW */
+ unsigned long rtc_26:1; /* RW */
+ unsigned long rtc_27:1; /* RW */
+ unsigned long rtc_28:1; /* RW */
+ unsigned long rtc_29:1; /* RW */
+ unsigned long rtc_30:1; /* RW */
+ unsigned long rtc_31:1; /* RW */
+ unsigned long rsvd_32_63:32;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_event_occurred2_s {
+ unsigned long rtc_0:1; /* RW */
+ unsigned long rtc_1:1; /* RW */
+ unsigned long rtc_2:1; /* RW */
+ unsigned long rtc_3:1; /* RW */
+ unsigned long rtc_4:1; /* RW */
+ unsigned long rtc_5:1; /* RW */
+ unsigned long rtc_6:1; /* RW */
+ unsigned long rtc_7:1; /* RW */
+ unsigned long rtc_8:1; /* RW */
+ unsigned long rtc_9:1; /* RW */
+ unsigned long rtc_10:1; /* RW */
+ unsigned long rtc_11:1; /* RW */
+ unsigned long rtc_12:1; /* RW */
+ unsigned long rtc_13:1; /* RW */
+ unsigned long rtc_14:1; /* RW */
+ unsigned long rtc_15:1; /* RW */
+ unsigned long rtc_16:1; /* RW */
+ unsigned long rtc_17:1; /* RW */
+ unsigned long rtc_18:1; /* RW */
+ unsigned long rtc_19:1; /* RW */
+ unsigned long rtc_20:1; /* RW */
+ unsigned long rtc_21:1; /* RW */
+ unsigned long rtc_22:1; /* RW */
+ unsigned long rtc_23:1; /* RW */
+ unsigned long rtc_24:1; /* RW */
+ unsigned long rtc_25:1; /* RW */
+ unsigned long rtc_26:1; /* RW */
+ unsigned long rtc_27:1; /* RW */
+ unsigned long rtc_28:1; /* RW */
+ unsigned long rtc_29:1; /* RW */
+ unsigned long rtc_30:1; /* RW */
+ unsigned long rtc_31:1; /* RW */
+ unsigned long rsvd_32_63:32;
+ } s2;
};
/* ========================================================================= */
-/* UVH_EVENT_OCCURRED0_ALIAS */
+/* UVH_EVENT_OCCURRED2_ALIAS */
+/* ========================================================================= */
+#define UVH_EVENT_OCCURRED2_ALIAS 0x70108UL
+
+
+/* ========================================================================= */
+/* UVH_EXTIO_INT0_BROADCAST */
+/* ========================================================================= */
+#define UVH_EXTIO_INT0_BROADCAST 0x61448UL
+
+/* UVH common defines*/
+#define UVH_EXTIO_INT0_BROADCAST_ENABLE_SHFT 0
+#define UVH_EXTIO_INT0_BROADCAST_ENABLE_MASK 0x0000000000000001UL
+
+
+union uvh_extio_int0_broadcast_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_extio_int0_broadcast_s {
+ unsigned long enable:1; /* RW */
+ unsigned long rsvd_1_63:63;
+ } s;
+
+ /* UV5 unique struct */
+ struct uv5h_extio_int0_broadcast_s {
+ unsigned long enable:1; /* RW */
+ unsigned long rsvd_1_63:63;
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_extio_int0_broadcast_s {
+ unsigned long enable:1; /* RW */
+ unsigned long rsvd_1_63:63;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_extio_int0_broadcast_s {
+ unsigned long enable:1; /* RW */
+ unsigned long rsvd_1_63:63;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_extio_int0_broadcast_s {
+ unsigned long enable:1; /* RW */
+ unsigned long rsvd_1_63:63;
+ } s2;
+};
+
/* ========================================================================= */
-#define UVH_EVENT_OCCURRED0_ALIAS 0x0000000000070008UL
-#define UVH_EVENT_OCCURRED0_ALIAS_32 0x005f0
+/* UVH_GR0_GAM_GR_CONFIG */
+/* ========================================================================= */
+#define UVH_GR0_GAM_GR_CONFIG ( \
+ is_uv(UV5) ? 0x600028UL : \
+ is_uv(UV4) ? 0x600028UL : \
+ is_uv(UV3) ? 0xc00028UL : \
+ is_uv(UV2) ? 0xc00028UL : \
+ 0)
+
+
+
+/* UVYH common defines */
+#define UVYH_GR0_GAM_GR_CONFIG_SUBSPACE_SHFT 10
+#define UVYH_GR0_GAM_GR_CONFIG_SUBSPACE_MASK 0x0000000000000400UL
+
+/* UV4 unique defines */
+#define UV4H_GR0_GAM_GR_CONFIG_SUBSPACE_SHFT 10
+#define UV4H_GR0_GAM_GR_CONFIG_SUBSPACE_MASK 0x0000000000000400UL
+
+/* UV3 unique defines */
+#define UV3H_GR0_GAM_GR_CONFIG_M_SKT_SHFT 0
+#define UV3H_GR0_GAM_GR_CONFIG_M_SKT_MASK 0x000000000000003fUL
+#define UV3H_GR0_GAM_GR_CONFIG_SUBSPACE_SHFT 10
+#define UV3H_GR0_GAM_GR_CONFIG_SUBSPACE_MASK 0x0000000000000400UL
+
+/* UV2 unique defines */
+#define UV2H_GR0_GAM_GR_CONFIG_N_GR_SHFT 0
+#define UV2H_GR0_GAM_GR_CONFIG_N_GR_MASK 0x000000000000000fUL
+
+
+union uvyh_gr0_gam_gr_config_u {
+ unsigned long v;
+
+ /* UVYH common struct */
+ struct uvyh_gr0_gam_gr_config_s {
+ unsigned long rsvd_0_9:10;
+ unsigned long subspace:1; /* RW */
+ unsigned long rsvd_11_63:53;
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_gr0_gam_gr_config_s {
+ unsigned long rsvd_0_9:10;
+ unsigned long subspace:1; /* RW */
+ unsigned long rsvd_11_63:53;
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_gr0_gam_gr_config_s {
+ unsigned long rsvd_0_9:10;
+ unsigned long subspace:1; /* RW */
+ unsigned long rsvd_11_63:53;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_gr0_gam_gr_config_s {
+ unsigned long m_skt:6; /* RW */
+ unsigned long undef_6_9:4; /* Undefined */
+ unsigned long subspace:1; /* RW */
+ unsigned long reserved:53;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_gr0_gam_gr_config_s {
+ unsigned long n_gr:4; /* RW */
+ unsigned long reserved:60;
+ } s2;
+};
/* ========================================================================= */
/* UVH_GR0_TLB_INT0_CONFIG */
/* ========================================================================= */
-#define UVH_GR0_TLB_INT0_CONFIG 0x61b00UL
-
-#define UVH_GR0_TLB_INT0_CONFIG_VECTOR_SHFT 0
-#define UVH_GR0_TLB_INT0_CONFIG_VECTOR_MASK 0x00000000000000ffUL
-#define UVH_GR0_TLB_INT0_CONFIG_DM_SHFT 8
-#define UVH_GR0_TLB_INT0_CONFIG_DM_MASK 0x0000000000000700UL
-#define UVH_GR0_TLB_INT0_CONFIG_DESTMODE_SHFT 11
-#define UVH_GR0_TLB_INT0_CONFIG_DESTMODE_MASK 0x0000000000000800UL
-#define UVH_GR0_TLB_INT0_CONFIG_STATUS_SHFT 12
-#define UVH_GR0_TLB_INT0_CONFIG_STATUS_MASK 0x0000000000001000UL
-#define UVH_GR0_TLB_INT0_CONFIG_P_SHFT 13
-#define UVH_GR0_TLB_INT0_CONFIG_P_MASK 0x0000000000002000UL
-#define UVH_GR0_TLB_INT0_CONFIG_T_SHFT 15
-#define UVH_GR0_TLB_INT0_CONFIG_T_MASK 0x0000000000008000UL
-#define UVH_GR0_TLB_INT0_CONFIG_M_SHFT 16
-#define UVH_GR0_TLB_INT0_CONFIG_M_MASK 0x0000000000010000UL
-#define UVH_GR0_TLB_INT0_CONFIG_APIC_ID_SHFT 32
-#define UVH_GR0_TLB_INT0_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
+#define UVH_GR0_TLB_INT0_CONFIG ( \
+ is_uv(UV4) ? 0x61b00UL : \
+ is_uv(UV3) ? 0x61b00UL : \
+ is_uv(UV2) ? 0x61b00UL : \
+ uv_undefined("UVH_GR0_TLB_INT0_CONFIG"))
+
+
+/* UVXH common defines */
+#define UVXH_GR0_TLB_INT0_CONFIG_VECTOR_SHFT 0
+#define UVXH_GR0_TLB_INT0_CONFIG_VECTOR_MASK 0x00000000000000ffUL
+#define UVXH_GR0_TLB_INT0_CONFIG_DM_SHFT 8
+#define UVXH_GR0_TLB_INT0_CONFIG_DM_MASK 0x0000000000000700UL
+#define UVXH_GR0_TLB_INT0_CONFIG_DESTMODE_SHFT 11
+#define UVXH_GR0_TLB_INT0_CONFIG_DESTMODE_MASK 0x0000000000000800UL
+#define UVXH_GR0_TLB_INT0_CONFIG_STATUS_SHFT 12
+#define UVXH_GR0_TLB_INT0_CONFIG_STATUS_MASK 0x0000000000001000UL
+#define UVXH_GR0_TLB_INT0_CONFIG_P_SHFT 13
+#define UVXH_GR0_TLB_INT0_CONFIG_P_MASK 0x0000000000002000UL
+#define UVXH_GR0_TLB_INT0_CONFIG_T_SHFT 15
+#define UVXH_GR0_TLB_INT0_CONFIG_T_MASK 0x0000000000008000UL
+#define UVXH_GR0_TLB_INT0_CONFIG_M_SHFT 16
+#define UVXH_GR0_TLB_INT0_CONFIG_M_MASK 0x0000000000010000UL
+#define UVXH_GR0_TLB_INT0_CONFIG_APIC_ID_SHFT 32
+#define UVXH_GR0_TLB_INT0_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
+
union uvh_gr0_tlb_int0_config_u {
- unsigned long v;
- struct uvh_gr0_tlb_int0_config_s {
- unsigned long vector_ : 8; /* RW */
- unsigned long dm : 3; /* RW */
- unsigned long destmode : 1; /* RW */
- unsigned long status : 1; /* RO */
- unsigned long p : 1; /* RO */
- unsigned long rsvd_14 : 1; /* */
- unsigned long t : 1; /* RO */
- unsigned long m : 1; /* RW */
- unsigned long rsvd_17_31: 15; /* */
- unsigned long apic_id : 32; /* RW */
- } s;
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_gr0_tlb_int0_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_gr0_tlb_int0_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_gr0_tlb_int0_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_gr0_tlb_int0_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_gr0_tlb_int0_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s2;
};
/* ========================================================================= */
/* UVH_GR0_TLB_INT1_CONFIG */
/* ========================================================================= */
-#define UVH_GR0_TLB_INT1_CONFIG 0x61b40UL
-
-#define UVH_GR0_TLB_INT1_CONFIG_VECTOR_SHFT 0
-#define UVH_GR0_TLB_INT1_CONFIG_VECTOR_MASK 0x00000000000000ffUL
-#define UVH_GR0_TLB_INT1_CONFIG_DM_SHFT 8
-#define UVH_GR0_TLB_INT1_CONFIG_DM_MASK 0x0000000000000700UL
-#define UVH_GR0_TLB_INT1_CONFIG_DESTMODE_SHFT 11
-#define UVH_GR0_TLB_INT1_CONFIG_DESTMODE_MASK 0x0000000000000800UL
-#define UVH_GR0_TLB_INT1_CONFIG_STATUS_SHFT 12
-#define UVH_GR0_TLB_INT1_CONFIG_STATUS_MASK 0x0000000000001000UL
-#define UVH_GR0_TLB_INT1_CONFIG_P_SHFT 13
-#define UVH_GR0_TLB_INT1_CONFIG_P_MASK 0x0000000000002000UL
-#define UVH_GR0_TLB_INT1_CONFIG_T_SHFT 15
-#define UVH_GR0_TLB_INT1_CONFIG_T_MASK 0x0000000000008000UL
-#define UVH_GR0_TLB_INT1_CONFIG_M_SHFT 16
-#define UVH_GR0_TLB_INT1_CONFIG_M_MASK 0x0000000000010000UL
-#define UVH_GR0_TLB_INT1_CONFIG_APIC_ID_SHFT 32
-#define UVH_GR0_TLB_INT1_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
+#define UVH_GR0_TLB_INT1_CONFIG ( \
+ is_uv(UV4) ? 0x61b40UL : \
+ is_uv(UV3) ? 0x61b40UL : \
+ is_uv(UV2) ? 0x61b40UL : \
+ uv_undefined("UVH_GR0_TLB_INT1_CONFIG"))
+
+
+/* UVXH common defines */
+#define UVXH_GR0_TLB_INT1_CONFIG_VECTOR_SHFT 0
+#define UVXH_GR0_TLB_INT1_CONFIG_VECTOR_MASK 0x00000000000000ffUL
+#define UVXH_GR0_TLB_INT1_CONFIG_DM_SHFT 8
+#define UVXH_GR0_TLB_INT1_CONFIG_DM_MASK 0x0000000000000700UL
+#define UVXH_GR0_TLB_INT1_CONFIG_DESTMODE_SHFT 11
+#define UVXH_GR0_TLB_INT1_CONFIG_DESTMODE_MASK 0x0000000000000800UL
+#define UVXH_GR0_TLB_INT1_CONFIG_STATUS_SHFT 12
+#define UVXH_GR0_TLB_INT1_CONFIG_STATUS_MASK 0x0000000000001000UL
+#define UVXH_GR0_TLB_INT1_CONFIG_P_SHFT 13
+#define UVXH_GR0_TLB_INT1_CONFIG_P_MASK 0x0000000000002000UL
+#define UVXH_GR0_TLB_INT1_CONFIG_T_SHFT 15
+#define UVXH_GR0_TLB_INT1_CONFIG_T_MASK 0x0000000000008000UL
+#define UVXH_GR0_TLB_INT1_CONFIG_M_SHFT 16
+#define UVXH_GR0_TLB_INT1_CONFIG_M_MASK 0x0000000000010000UL
+#define UVXH_GR0_TLB_INT1_CONFIG_APIC_ID_SHFT 32
+#define UVXH_GR0_TLB_INT1_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
+
union uvh_gr0_tlb_int1_config_u {
- unsigned long v;
- struct uvh_gr0_tlb_int1_config_s {
- unsigned long vector_ : 8; /* RW */
- unsigned long dm : 3; /* RW */
- unsigned long destmode : 1; /* RW */
- unsigned long status : 1; /* RO */
- unsigned long p : 1; /* RO */
- unsigned long rsvd_14 : 1; /* */
- unsigned long t : 1; /* RO */
- unsigned long m : 1; /* RW */
- unsigned long rsvd_17_31: 15; /* */
- unsigned long apic_id : 32; /* RW */
- } s;
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_gr0_tlb_int1_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_gr0_tlb_int1_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_gr0_tlb_int1_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_gr0_tlb_int1_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_gr0_tlb_int1_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s2;
};
/* ========================================================================= */
/* UVH_GR1_TLB_INT0_CONFIG */
/* ========================================================================= */
-#define UVH_GR1_TLB_INT0_CONFIG 0x61f00UL
-
-#define UVH_GR1_TLB_INT0_CONFIG_VECTOR_SHFT 0
-#define UVH_GR1_TLB_INT0_CONFIG_VECTOR_MASK 0x00000000000000ffUL
-#define UVH_GR1_TLB_INT0_CONFIG_DM_SHFT 8
-#define UVH_GR1_TLB_INT0_CONFIG_DM_MASK 0x0000000000000700UL
-#define UVH_GR1_TLB_INT0_CONFIG_DESTMODE_SHFT 11
-#define UVH_GR1_TLB_INT0_CONFIG_DESTMODE_MASK 0x0000000000000800UL
-#define UVH_GR1_TLB_INT0_CONFIG_STATUS_SHFT 12
-#define UVH_GR1_TLB_INT0_CONFIG_STATUS_MASK 0x0000000000001000UL
-#define UVH_GR1_TLB_INT0_CONFIG_P_SHFT 13
-#define UVH_GR1_TLB_INT0_CONFIG_P_MASK 0x0000000000002000UL
-#define UVH_GR1_TLB_INT0_CONFIG_T_SHFT 15
-#define UVH_GR1_TLB_INT0_CONFIG_T_MASK 0x0000000000008000UL
-#define UVH_GR1_TLB_INT0_CONFIG_M_SHFT 16
-#define UVH_GR1_TLB_INT0_CONFIG_M_MASK 0x0000000000010000UL
-#define UVH_GR1_TLB_INT0_CONFIG_APIC_ID_SHFT 32
-#define UVH_GR1_TLB_INT0_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
+#define UVH_GR1_TLB_INT0_CONFIG ( \
+ is_uv(UV4) ? 0x62100UL : \
+ is_uv(UV3) ? 0x61f00UL : \
+ is_uv(UV2) ? 0x61f00UL : \
+ uv_undefined("UVH_GR1_TLB_INT0_CONFIG"))
+
+
+/* UVXH common defines */
+#define UVXH_GR1_TLB_INT0_CONFIG_VECTOR_SHFT 0
+#define UVXH_GR1_TLB_INT0_CONFIG_VECTOR_MASK 0x00000000000000ffUL
+#define UVXH_GR1_TLB_INT0_CONFIG_DM_SHFT 8
+#define UVXH_GR1_TLB_INT0_CONFIG_DM_MASK 0x0000000000000700UL
+#define UVXH_GR1_TLB_INT0_CONFIG_DESTMODE_SHFT 11
+#define UVXH_GR1_TLB_INT0_CONFIG_DESTMODE_MASK 0x0000000000000800UL
+#define UVXH_GR1_TLB_INT0_CONFIG_STATUS_SHFT 12
+#define UVXH_GR1_TLB_INT0_CONFIG_STATUS_MASK 0x0000000000001000UL
+#define UVXH_GR1_TLB_INT0_CONFIG_P_SHFT 13
+#define UVXH_GR1_TLB_INT0_CONFIG_P_MASK 0x0000000000002000UL
+#define UVXH_GR1_TLB_INT0_CONFIG_T_SHFT 15
+#define UVXH_GR1_TLB_INT0_CONFIG_T_MASK 0x0000000000008000UL
+#define UVXH_GR1_TLB_INT0_CONFIG_M_SHFT 16
+#define UVXH_GR1_TLB_INT0_CONFIG_M_MASK 0x0000000000010000UL
+#define UVXH_GR1_TLB_INT0_CONFIG_APIC_ID_SHFT 32
+#define UVXH_GR1_TLB_INT0_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
+
union uvh_gr1_tlb_int0_config_u {
- unsigned long v;
- struct uvh_gr1_tlb_int0_config_s {
- unsigned long vector_ : 8; /* RW */
- unsigned long dm : 3; /* RW */
- unsigned long destmode : 1; /* RW */
- unsigned long status : 1; /* RO */
- unsigned long p : 1; /* RO */
- unsigned long rsvd_14 : 1; /* */
- unsigned long t : 1; /* RO */
- unsigned long m : 1; /* RW */
- unsigned long rsvd_17_31: 15; /* */
- unsigned long apic_id : 32; /* RW */
- } s;
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_gr1_tlb_int0_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_gr1_tlb_int0_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_gr1_tlb_int0_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_gr1_tlb_int0_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_gr1_tlb_int0_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s2;
};
/* ========================================================================= */
/* UVH_GR1_TLB_INT1_CONFIG */
/* ========================================================================= */
-#define UVH_GR1_TLB_INT1_CONFIG 0x61f40UL
-
-#define UVH_GR1_TLB_INT1_CONFIG_VECTOR_SHFT 0
-#define UVH_GR1_TLB_INT1_CONFIG_VECTOR_MASK 0x00000000000000ffUL
-#define UVH_GR1_TLB_INT1_CONFIG_DM_SHFT 8
-#define UVH_GR1_TLB_INT1_CONFIG_DM_MASK 0x0000000000000700UL
-#define UVH_GR1_TLB_INT1_CONFIG_DESTMODE_SHFT 11
-#define UVH_GR1_TLB_INT1_CONFIG_DESTMODE_MASK 0x0000000000000800UL
-#define UVH_GR1_TLB_INT1_CONFIG_STATUS_SHFT 12
-#define UVH_GR1_TLB_INT1_CONFIG_STATUS_MASK 0x0000000000001000UL
-#define UVH_GR1_TLB_INT1_CONFIG_P_SHFT 13
-#define UVH_GR1_TLB_INT1_CONFIG_P_MASK 0x0000000000002000UL
-#define UVH_GR1_TLB_INT1_CONFIG_T_SHFT 15
-#define UVH_GR1_TLB_INT1_CONFIG_T_MASK 0x0000000000008000UL
-#define UVH_GR1_TLB_INT1_CONFIG_M_SHFT 16
-#define UVH_GR1_TLB_INT1_CONFIG_M_MASK 0x0000000000010000UL
-#define UVH_GR1_TLB_INT1_CONFIG_APIC_ID_SHFT 32
-#define UVH_GR1_TLB_INT1_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
+#define UVH_GR1_TLB_INT1_CONFIG ( \
+ is_uv(UV4) ? 0x62140UL : \
+ is_uv(UV3) ? 0x61f40UL : \
+ is_uv(UV2) ? 0x61f40UL : \
+ uv_undefined("UVH_GR1_TLB_INT1_CONFIG"))
+
+
+/* UVXH common defines */
+#define UVXH_GR1_TLB_INT1_CONFIG_VECTOR_SHFT 0
+#define UVXH_GR1_TLB_INT1_CONFIG_VECTOR_MASK 0x00000000000000ffUL
+#define UVXH_GR1_TLB_INT1_CONFIG_DM_SHFT 8
+#define UVXH_GR1_TLB_INT1_CONFIG_DM_MASK 0x0000000000000700UL
+#define UVXH_GR1_TLB_INT1_CONFIG_DESTMODE_SHFT 11
+#define UVXH_GR1_TLB_INT1_CONFIG_DESTMODE_MASK 0x0000000000000800UL
+#define UVXH_GR1_TLB_INT1_CONFIG_STATUS_SHFT 12
+#define UVXH_GR1_TLB_INT1_CONFIG_STATUS_MASK 0x0000000000001000UL
+#define UVXH_GR1_TLB_INT1_CONFIG_P_SHFT 13
+#define UVXH_GR1_TLB_INT1_CONFIG_P_MASK 0x0000000000002000UL
+#define UVXH_GR1_TLB_INT1_CONFIG_T_SHFT 15
+#define UVXH_GR1_TLB_INT1_CONFIG_T_MASK 0x0000000000008000UL
+#define UVXH_GR1_TLB_INT1_CONFIG_M_SHFT 16
+#define UVXH_GR1_TLB_INT1_CONFIG_M_MASK 0x0000000000010000UL
+#define UVXH_GR1_TLB_INT1_CONFIG_APIC_ID_SHFT 32
+#define UVXH_GR1_TLB_INT1_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
+
union uvh_gr1_tlb_int1_config_u {
- unsigned long v;
- struct uvh_gr1_tlb_int1_config_s {
- unsigned long vector_ : 8; /* RW */
- unsigned long dm : 3; /* RW */
- unsigned long destmode : 1; /* RW */
- unsigned long status : 1; /* RO */
- unsigned long p : 1; /* RO */
- unsigned long rsvd_14 : 1; /* */
- unsigned long t : 1; /* RO */
- unsigned long m : 1; /* RW */
- unsigned long rsvd_17_31: 15; /* */
- unsigned long apic_id : 32; /* RW */
- } s;
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_gr1_tlb_int1_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_gr1_tlb_int1_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_gr1_tlb_int1_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_gr1_tlb_int1_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_gr1_tlb_int1_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s2;
};
/* ========================================================================= */
@@ -416,649 +2661,1766 @@ union uvh_gr1_tlb_int1_config_u {
/* ========================================================================= */
#define UVH_INT_CMPB 0x22080UL
-#define UVH_INT_CMPB_REAL_TIME_CMPB_SHFT 0
-#define UVH_INT_CMPB_REAL_TIME_CMPB_MASK 0x00ffffffffffffffUL
+/* UVH common defines*/
+#define UVH_INT_CMPB_REAL_TIME_CMPB_SHFT 0
+#define UVH_INT_CMPB_REAL_TIME_CMPB_MASK 0x00ffffffffffffffUL
+
union uvh_int_cmpb_u {
- unsigned long v;
- struct uvh_int_cmpb_s {
- unsigned long real_time_cmpb : 56; /* RW */
- unsigned long rsvd_56_63 : 8; /* */
- } s;
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_int_cmpb_s {
+ unsigned long real_time_cmpb:56; /* RW */
+ unsigned long rsvd_56_63:8;
+ } s;
+
+ /* UV5 unique struct */
+ struct uv5h_int_cmpb_s {
+ unsigned long real_time_cmpb:56; /* RW */
+ unsigned long rsvd_56_63:8;
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_int_cmpb_s {
+ unsigned long real_time_cmpb:56; /* RW */
+ unsigned long rsvd_56_63:8;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_int_cmpb_s {
+ unsigned long real_time_cmpb:56; /* RW */
+ unsigned long rsvd_56_63:8;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_int_cmpb_s {
+ unsigned long real_time_cmpb:56; /* RW */
+ unsigned long rsvd_56_63:8;
+ } s2;
};
/* ========================================================================= */
-/* UVH_INT_CMPC */
+/* UVH_IPI_INT */
/* ========================================================================= */
-#define UVH_INT_CMPC 0x22100UL
+#define UVH_IPI_INT 0x60500UL
+
+/* UVH common defines*/
+#define UVH_IPI_INT_VECTOR_SHFT 0
+#define UVH_IPI_INT_VECTOR_MASK 0x00000000000000ffUL
+#define UVH_IPI_INT_DELIVERY_MODE_SHFT 8
+#define UVH_IPI_INT_DELIVERY_MODE_MASK 0x0000000000000700UL
+#define UVH_IPI_INT_DESTMODE_SHFT 11
+#define UVH_IPI_INT_DESTMODE_MASK 0x0000000000000800UL
+#define UVH_IPI_INT_APIC_ID_SHFT 16
+#define UVH_IPI_INT_APIC_ID_MASK 0x0000ffffffff0000UL
+#define UVH_IPI_INT_SEND_SHFT 63
+#define UVH_IPI_INT_SEND_MASK 0x8000000000000000UL
-#define UVH_INT_CMPC_REAL_TIME_CMPC_SHFT 0
-#define UVH_INT_CMPC_REAL_TIME_CMPC_MASK 0x00ffffffffffffffUL
-union uvh_int_cmpc_u {
- unsigned long v;
- struct uvh_int_cmpc_s {
- unsigned long real_time_cmpc : 56; /* RW */
- unsigned long rsvd_56_63 : 8; /* */
- } s;
+union uvh_ipi_int_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_ipi_int_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long delivery_mode:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long rsvd_12_15:4;
+ unsigned long apic_id:32; /* RW */
+ unsigned long rsvd_48_62:15;
+ unsigned long send:1; /* WP */
+ } s;
+
+ /* UV5 unique struct */
+ struct uv5h_ipi_int_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long delivery_mode:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long rsvd_12_15:4;
+ unsigned long apic_id:32; /* RW */
+ unsigned long rsvd_48_62:15;
+ unsigned long send:1; /* WP */
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_ipi_int_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long delivery_mode:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long rsvd_12_15:4;
+ unsigned long apic_id:32; /* RW */
+ unsigned long rsvd_48_62:15;
+ unsigned long send:1; /* WP */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_ipi_int_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long delivery_mode:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long rsvd_12_15:4;
+ unsigned long apic_id:32; /* RW */
+ unsigned long rsvd_48_62:15;
+ unsigned long send:1; /* WP */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_ipi_int_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long delivery_mode:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long rsvd_12_15:4;
+ unsigned long apic_id:32; /* RW */
+ unsigned long rsvd_48_62:15;
+ unsigned long send:1; /* WP */
+ } s2;
};
/* ========================================================================= */
-/* UVH_INT_CMPD */
+/* UVH_NODE_ID */
/* ========================================================================= */
-#define UVH_INT_CMPD 0x22180UL
+#define UVH_NODE_ID 0x0UL
+
+/* UVH common defines*/
+#define UVH_NODE_ID_FORCE1_SHFT 0
+#define UVH_NODE_ID_FORCE1_MASK 0x0000000000000001UL
+#define UVH_NODE_ID_MANUFACTURER_SHFT 1
+#define UVH_NODE_ID_MANUFACTURER_MASK 0x0000000000000ffeUL
+#define UVH_NODE_ID_PART_NUMBER_SHFT 12
+#define UVH_NODE_ID_PART_NUMBER_MASK 0x000000000ffff000UL
+#define UVH_NODE_ID_REVISION_SHFT 28
+#define UVH_NODE_ID_REVISION_MASK 0x00000000f0000000UL
+#define UVH_NODE_ID_NODE_ID_SHFT 32
+#define UVH_NODE_ID_NI_PORT_SHFT 57
+
+/* UVXH common defines */
+#define UVXH_NODE_ID_NODE_ID_MASK 0x00007fff00000000UL
+#define UVXH_NODE_ID_NODES_PER_BIT_SHFT 50
+#define UVXH_NODE_ID_NODES_PER_BIT_MASK 0x01fc000000000000UL
+#define UVXH_NODE_ID_NI_PORT_MASK 0x3e00000000000000UL
+
+/* UVYH common defines */
+#define UVYH_NODE_ID_NODE_ID_MASK 0x0000007f00000000UL
+#define UVYH_NODE_ID_NI_PORT_MASK 0x7e00000000000000UL
+
+/* UV4 unique defines */
+#define UV4H_NODE_ID_ROUTER_SELECT_SHFT 48
+#define UV4H_NODE_ID_ROUTER_SELECT_MASK 0x0001000000000000UL
+#define UV4H_NODE_ID_RESERVED_2_SHFT 49
+#define UV4H_NODE_ID_RESERVED_2_MASK 0x0002000000000000UL
+
+/* UV3 unique defines */
+#define UV3H_NODE_ID_ROUTER_SELECT_SHFT 48
+#define UV3H_NODE_ID_ROUTER_SELECT_MASK 0x0001000000000000UL
+#define UV3H_NODE_ID_RESERVED_2_SHFT 49
+#define UV3H_NODE_ID_RESERVED_2_MASK 0x0002000000000000UL
-#define UVH_INT_CMPD_REAL_TIME_CMPD_SHFT 0
-#define UVH_INT_CMPD_REAL_TIME_CMPD_MASK 0x00ffffffffffffffUL
-union uvh_int_cmpd_u {
- unsigned long v;
- struct uvh_int_cmpd_s {
- unsigned long real_time_cmpd : 56; /* RW */
- unsigned long rsvd_56_63 : 8; /* */
- } s;
+union uvh_node_id_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_node_id_s {
+ unsigned long force1:1; /* RO */
+ unsigned long manufacturer:11; /* RO */
+ unsigned long part_number:16; /* RO */
+ unsigned long revision:4; /* RO */
+ unsigned long rsvd_32_63:32;
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_node_id_s {
+ unsigned long force1:1; /* RO */
+ unsigned long manufacturer:11; /* RO */
+ unsigned long part_number:16; /* RO */
+ unsigned long revision:4; /* RO */
+ unsigned long node_id:15; /* RW */
+ unsigned long rsvd_47_49:3;
+ unsigned long nodes_per_bit:7; /* RO */
+ unsigned long ni_port:5; /* RO */
+ unsigned long rsvd_62_63:2;
+ } sx;
+
+ /* UVYH common struct */
+ struct uvyh_node_id_s {
+ unsigned long force1:1; /* RO */
+ unsigned long manufacturer:11; /* RO */
+ unsigned long part_number:16; /* RO */
+ unsigned long revision:4; /* RO */
+ unsigned long node_id:7; /* RW */
+ unsigned long rsvd_39_56:18;
+ unsigned long ni_port:6; /* RO */
+ unsigned long rsvd_63:1;
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_node_id_s {
+ unsigned long force1:1; /* RO */
+ unsigned long manufacturer:11; /* RO */
+ unsigned long part_number:16; /* RO */
+ unsigned long revision:4; /* RO */
+ unsigned long node_id:7; /* RW */
+ unsigned long rsvd_39_56:18;
+ unsigned long ni_port:6; /* RO */
+ unsigned long rsvd_63:1;
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_node_id_s {
+ unsigned long force1:1; /* RO */
+ unsigned long manufacturer:11; /* RO */
+ unsigned long part_number:16; /* RO */
+ unsigned long revision:4; /* RO */
+ unsigned long node_id:15; /* RW */
+ unsigned long rsvd_47:1;
+ unsigned long router_select:1; /* RO */
+ unsigned long rsvd_49:1;
+ unsigned long nodes_per_bit:7; /* RO */
+ unsigned long ni_port:5; /* RO */
+ unsigned long rsvd_62_63:2;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_node_id_s {
+ unsigned long force1:1; /* RO */
+ unsigned long manufacturer:11; /* RO */
+ unsigned long part_number:16; /* RO */
+ unsigned long revision:4; /* RO */
+ unsigned long node_id:15; /* RW */
+ unsigned long rsvd_47:1;
+ unsigned long router_select:1; /* RO */
+ unsigned long rsvd_49:1;
+ unsigned long nodes_per_bit:7; /* RO */
+ unsigned long ni_port:5; /* RO */
+ unsigned long rsvd_62_63:2;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_node_id_s {
+ unsigned long force1:1; /* RO */
+ unsigned long manufacturer:11; /* RO */
+ unsigned long part_number:16; /* RO */
+ unsigned long revision:4; /* RO */
+ unsigned long node_id:15; /* RW */
+ unsigned long rsvd_47_49:3;
+ unsigned long nodes_per_bit:7; /* RO */
+ unsigned long ni_port:5; /* RO */
+ unsigned long rsvd_62_63:2;
+ } s2;
};
/* ========================================================================= */
-/* UVH_IPI_INT */
+/* UVH_NODE_PRESENT_0 */
/* ========================================================================= */
-#define UVH_IPI_INT 0x60500UL
-#define UVH_IPI_INT_32 0x0348
-
-#define UVH_IPI_INT_VECTOR_SHFT 0
-#define UVH_IPI_INT_VECTOR_MASK 0x00000000000000ffUL
-#define UVH_IPI_INT_DELIVERY_MODE_SHFT 8
-#define UVH_IPI_INT_DELIVERY_MODE_MASK 0x0000000000000700UL
-#define UVH_IPI_INT_DESTMODE_SHFT 11
-#define UVH_IPI_INT_DESTMODE_MASK 0x0000000000000800UL
-#define UVH_IPI_INT_APIC_ID_SHFT 16
-#define UVH_IPI_INT_APIC_ID_MASK 0x0000ffffffff0000UL
-#define UVH_IPI_INT_SEND_SHFT 63
-#define UVH_IPI_INT_SEND_MASK 0x8000000000000000UL
+#define UVH_NODE_PRESENT_0 ( \
+ is_uv(UV5) ? 0x1400UL : \
+ 0)
-union uvh_ipi_int_u {
- unsigned long v;
- struct uvh_ipi_int_s {
- unsigned long vector_ : 8; /* RW */
- unsigned long delivery_mode : 3; /* RW */
- unsigned long destmode : 1; /* RW */
- unsigned long rsvd_12_15 : 4; /* */
- unsigned long apic_id : 32; /* RW */
- unsigned long rsvd_48_62 : 15; /* */
- unsigned long send : 1; /* WP */
- } s;
+
+/* UVYH common defines */
+#define UVYH_NODE_PRESENT_0_NODES_SHFT 0
+#define UVYH_NODE_PRESENT_0_NODES_MASK 0xffffffffffffffffUL
+
+
+union uvh_node_present_0_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_node_present_0_s {
+ unsigned long nodes:64; /* RW */
+ } s;
+
+ /* UVYH common struct */
+ struct uvyh_node_present_0_s {
+ unsigned long nodes:64; /* RW */
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_node_present_0_s {
+ unsigned long nodes:64; /* RW */
+ } s5;
};
/* ========================================================================= */
-/* UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST */
+/* UVH_NODE_PRESENT_1 */
/* ========================================================================= */
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST 0x320050UL
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST_32 0x009c0
+#define UVH_NODE_PRESENT_1 ( \
+ is_uv(UV5) ? 0x1408UL : \
+ 0)
+
+
+/* UVYH common defines */
+#define UVYH_NODE_PRESENT_1_NODES_SHFT 0
+#define UVYH_NODE_PRESENT_1_NODES_MASK 0xffffffffffffffffUL
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST_ADDRESS_SHFT 4
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST_ADDRESS_MASK 0x000007fffffffff0UL
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST_NODE_ID_SHFT 49
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_FIRST_NODE_ID_MASK 0x7ffe000000000000UL
-union uvh_lb_bau_intd_payload_queue_first_u {
- unsigned long v;
- struct uvh_lb_bau_intd_payload_queue_first_s {
- unsigned long rsvd_0_3: 4; /* */
- unsigned long address : 39; /* RW */
- unsigned long rsvd_43_48: 6; /* */
- unsigned long node_id : 14; /* RW */
- unsigned long rsvd_63 : 1; /* */
- } s;
+union uvh_node_present_1_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_node_present_1_s {
+ unsigned long nodes:64; /* RW */
+ } s;
+
+ /* UVYH common struct */
+ struct uvyh_node_present_1_s {
+ unsigned long nodes:64; /* RW */
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_node_present_1_s {
+ unsigned long nodes:64; /* RW */
+ } s5;
};
/* ========================================================================= */
-/* UVH_LB_BAU_INTD_PAYLOAD_QUEUE_LAST */
+/* UVH_NODE_PRESENT_TABLE */
/* ========================================================================= */
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_LAST 0x320060UL
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_LAST_32 0x009c8
+#define UVH_NODE_PRESENT_TABLE ( \
+ is_uv(UV4) ? 0x1400UL : \
+ is_uv(UV3) ? 0x1400UL : \
+ is_uv(UV2) ? 0x1400UL : \
+ 0)
+
+#define UVH_NODE_PRESENT_TABLE_DEPTH ( \
+ is_uv(UV4) ? 4 : \
+ is_uv(UV3) ? 16 : \
+ is_uv(UV2) ? 16 : \
+ 0)
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_LAST_ADDRESS_SHFT 4
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_LAST_ADDRESS_MASK 0x000007fffffffff0UL
-union uvh_lb_bau_intd_payload_queue_last_u {
- unsigned long v;
- struct uvh_lb_bau_intd_payload_queue_last_s {
- unsigned long rsvd_0_3: 4; /* */
- unsigned long address : 39; /* RW */
- unsigned long rsvd_43_63: 21; /* */
- } s;
+/* UVXH common defines */
+#define UVXH_NODE_PRESENT_TABLE_NODES_SHFT 0
+#define UVXH_NODE_PRESENT_TABLE_NODES_MASK 0xffffffffffffffffUL
+
+
+union uvh_node_present_table_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_node_present_table_s {
+ unsigned long nodes:64; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_node_present_table_s {
+ unsigned long nodes:64; /* RW */
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_node_present_table_s {
+ unsigned long nodes:64; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_node_present_table_s {
+ unsigned long nodes:64; /* RW */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_node_present_table_s {
+ unsigned long nodes:64; /* RW */
+ } s2;
};
/* ========================================================================= */
-/* UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL */
+/* UVH_RH10_GAM_ADDR_MAP_CONFIG */
/* ========================================================================= */
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL 0x320070UL
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL_32 0x009d0
+#define UVH_RH10_GAM_ADDR_MAP_CONFIG ( \
+ is_uv(UV5) ? 0x470000UL : \
+ 0)
+
+
+/* UVYH common defines */
+#define UVYH_RH10_GAM_ADDR_MAP_CONFIG_N_SKT_SHFT 6
+#define UVYH_RH10_GAM_ADDR_MAP_CONFIG_N_SKT_MASK 0x00000000000001c0UL
+#define UVYH_RH10_GAM_ADDR_MAP_CONFIG_LS_ENABLE_SHFT 12
+#define UVYH_RH10_GAM_ADDR_MAP_CONFIG_LS_ENABLE_MASK 0x0000000000001000UL
+#define UVYH_RH10_GAM_ADDR_MAP_CONFIG_MK_TME_KEYID_BITS_SHFT 16
+#define UVYH_RH10_GAM_ADDR_MAP_CONFIG_MK_TME_KEYID_BITS_MASK 0x00000000000f0000UL
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL_ADDRESS_SHFT 4
-#define UVH_LB_BAU_INTD_PAYLOAD_QUEUE_TAIL_ADDRESS_MASK 0x000007fffffffff0UL
-union uvh_lb_bau_intd_payload_queue_tail_u {
- unsigned long v;
- struct uvh_lb_bau_intd_payload_queue_tail_s {
- unsigned long rsvd_0_3: 4; /* */
- unsigned long address : 39; /* RW */
- unsigned long rsvd_43_63: 21; /* */
- } s;
+union uvh_rh10_gam_addr_map_config_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh10_gam_addr_map_config_s {
+ unsigned long undef_0_5:6; /* Undefined */
+ unsigned long n_skt:3; /* RW */
+ unsigned long undef_9_11:3; /* Undefined */
+ unsigned long ls_enable:1; /* RW */
+ unsigned long undef_13_15:3; /* Undefined */
+ unsigned long mk_tme_keyid_bits:4; /* RW */
+ unsigned long rsvd_20_63:44;
+ } s;
+
+ /* UVYH common struct */
+ struct uvyh_rh10_gam_addr_map_config_s {
+ unsigned long undef_0_5:6; /* Undefined */
+ unsigned long n_skt:3; /* RW */
+ unsigned long undef_9_11:3; /* Undefined */
+ unsigned long ls_enable:1; /* RW */
+ unsigned long undef_13_15:3; /* Undefined */
+ unsigned long mk_tme_keyid_bits:4; /* RW */
+ unsigned long rsvd_20_63:44;
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_rh10_gam_addr_map_config_s {
+ unsigned long undef_0_5:6; /* Undefined */
+ unsigned long n_skt:3; /* RW */
+ unsigned long undef_9_11:3; /* Undefined */
+ unsigned long ls_enable:1; /* RW */
+ unsigned long undef_13_15:3; /* Undefined */
+ unsigned long mk_tme_keyid_bits:4; /* RW */
+ } s5;
};
/* ========================================================================= */
-/* UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE */
-/* ========================================================================= */
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE 0x320080UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_32 0x0a68
-
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_0_SHFT 0
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_0_MASK 0x0000000000000001UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_1_SHFT 1
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_1_MASK 0x0000000000000002UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_2_SHFT 2
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_2_MASK 0x0000000000000004UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_3_SHFT 3
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_3_MASK 0x0000000000000008UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_4_SHFT 4
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_4_MASK 0x0000000000000010UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_5_SHFT 5
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_5_MASK 0x0000000000000020UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_6_SHFT 6
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_6_MASK 0x0000000000000040UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_7_SHFT 7
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_PENDING_7_MASK 0x0000000000000080UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_0_SHFT 8
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_0_MASK 0x0000000000000100UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_1_SHFT 9
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_1_MASK 0x0000000000000200UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_2_SHFT 10
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_2_MASK 0x0000000000000400UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_3_SHFT 11
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_3_MASK 0x0000000000000800UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_4_SHFT 12
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_4_MASK 0x0000000000001000UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_5_SHFT 13
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_5_MASK 0x0000000000002000UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_6_SHFT 14
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_6_MASK 0x0000000000004000UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_7_SHFT 15
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_TIMEOUT_7_MASK 0x0000000000008000UL
-union uvh_lb_bau_intd_software_acknowledge_u {
- unsigned long v;
- struct uvh_lb_bau_intd_software_acknowledge_s {
- unsigned long pending_0 : 1; /* RW, W1C */
- unsigned long pending_1 : 1; /* RW, W1C */
- unsigned long pending_2 : 1; /* RW, W1C */
- unsigned long pending_3 : 1; /* RW, W1C */
- unsigned long pending_4 : 1; /* RW, W1C */
- unsigned long pending_5 : 1; /* RW, W1C */
- unsigned long pending_6 : 1; /* RW, W1C */
- unsigned long pending_7 : 1; /* RW, W1C */
- unsigned long timeout_0 : 1; /* RW, W1C */
- unsigned long timeout_1 : 1; /* RW, W1C */
- unsigned long timeout_2 : 1; /* RW, W1C */
- unsigned long timeout_3 : 1; /* RW, W1C */
- unsigned long timeout_4 : 1; /* RW, W1C */
- unsigned long timeout_5 : 1; /* RW, W1C */
- unsigned long timeout_6 : 1; /* RW, W1C */
- unsigned long timeout_7 : 1; /* RW, W1C */
- unsigned long rsvd_16_63: 48; /* */
- } s;
+/* UVH_RH10_GAM_GRU_OVERLAY_CONFIG */
+/* ========================================================================= */
+#define UVH_RH10_GAM_GRU_OVERLAY_CONFIG ( \
+ is_uv(UV5) ? 0x4700b0UL : \
+ 0)
+
+
+/* UVYH common defines */
+#define UVYH_RH10_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT 25
+#define UVYH_RH10_GAM_GRU_OVERLAY_CONFIG_BASE_MASK 0x000ffffffe000000UL
+#define UVYH_RH10_GAM_GRU_OVERLAY_CONFIG_N_GRU_SHFT 52
+#define UVYH_RH10_GAM_GRU_OVERLAY_CONFIG_N_GRU_MASK 0x0070000000000000UL
+#define UVYH_RH10_GAM_GRU_OVERLAY_CONFIG_ENABLE_SHFT 63
+#define UVYH_RH10_GAM_GRU_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
+
+#define UVH_RH10_GAM_GRU_OVERLAY_CONFIG_BASE_MASK ( \
+ is_uv(UV5) ? 0x000ffffffe000000UL : \
+ 0)
+#define UVH_RH10_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT ( \
+ is_uv(UV5) ? 25 : \
+ -1)
+
+union uvh_rh10_gam_gru_overlay_config_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh10_gam_gru_overlay_config_s {
+ unsigned long undef_0_24:25; /* Undefined */
+ unsigned long base:27; /* RW */
+ unsigned long n_gru:3; /* RW */
+ unsigned long undef_55_62:8; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVYH common struct */
+ struct uvyh_rh10_gam_gru_overlay_config_s {
+ unsigned long undef_0_24:25; /* Undefined */
+ unsigned long base:27; /* RW */
+ unsigned long n_gru:3; /* RW */
+ unsigned long undef_55_62:8; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_rh10_gam_gru_overlay_config_s {
+ unsigned long undef_0_24:25; /* Undefined */
+ unsigned long base:27; /* RW */
+ unsigned long n_gru:3; /* RW */
+ unsigned long undef_55_62:8; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } s5;
};
/* ========================================================================= */
-/* UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_ALIAS */
-/* ========================================================================= */
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_ALIAS 0x0000000000320088UL
-#define UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE_ALIAS_32 0x0a70
-
-/* ========================================================================= */
-/* UVH_LB_BAU_MISC_CONTROL */
-/* ========================================================================= */
-#define UVH_LB_BAU_MISC_CONTROL 0x320170UL
-#define UVH_LB_BAU_MISC_CONTROL_32 0x00a10
-
-#define UVH_LB_BAU_MISC_CONTROL_REJECTION_DELAY_SHFT 0
-#define UVH_LB_BAU_MISC_CONTROL_REJECTION_DELAY_MASK 0x00000000000000ffUL
-#define UVH_LB_BAU_MISC_CONTROL_APIC_MODE_SHFT 8
-#define UVH_LB_BAU_MISC_CONTROL_APIC_MODE_MASK 0x0000000000000100UL
-#define UVH_LB_BAU_MISC_CONTROL_FORCE_BROADCAST_SHFT 9
-#define UVH_LB_BAU_MISC_CONTROL_FORCE_BROADCAST_MASK 0x0000000000000200UL
-#define UVH_LB_BAU_MISC_CONTROL_FORCE_LOCK_NOP_SHFT 10
-#define UVH_LB_BAU_MISC_CONTROL_FORCE_LOCK_NOP_MASK 0x0000000000000400UL
-#define UVH_LB_BAU_MISC_CONTROL_CSI_AGENT_PRESENCE_VECTOR_SHFT 11
-#define UVH_LB_BAU_MISC_CONTROL_CSI_AGENT_PRESENCE_VECTOR_MASK 0x0000000000003800UL
-#define UVH_LB_BAU_MISC_CONTROL_DESCRIPTOR_FETCH_MODE_SHFT 14
-#define UVH_LB_BAU_MISC_CONTROL_DESCRIPTOR_FETCH_MODE_MASK 0x0000000000004000UL
-#define UVH_LB_BAU_MISC_CONTROL_ENABLE_INTD_SOFT_ACK_MODE_SHFT 15
-#define UVH_LB_BAU_MISC_CONTROL_ENABLE_INTD_SOFT_ACK_MODE_MASK 0x0000000000008000UL
-#define UVH_LB_BAU_MISC_CONTROL_INTD_SOFT_ACK_TIMEOUT_PERIOD_SHFT 16
-#define UVH_LB_BAU_MISC_CONTROL_INTD_SOFT_ACK_TIMEOUT_PERIOD_MASK 0x00000000000f0000UL
-#define UVH_LB_BAU_MISC_CONTROL_ENABLE_DUAL_MAPPING_MODE_SHFT 20
-#define UVH_LB_BAU_MISC_CONTROL_ENABLE_DUAL_MAPPING_MODE_MASK 0x0000000000100000UL
-#define UVH_LB_BAU_MISC_CONTROL_VGA_IO_PORT_DECODE_ENABLE_SHFT 21
-#define UVH_LB_BAU_MISC_CONTROL_VGA_IO_PORT_DECODE_ENABLE_MASK 0x0000000000200000UL
-#define UVH_LB_BAU_MISC_CONTROL_VGA_IO_PORT_16_BIT_DECODE_SHFT 22
-#define UVH_LB_BAU_MISC_CONTROL_VGA_IO_PORT_16_BIT_DECODE_MASK 0x0000000000400000UL
-#define UVH_LB_BAU_MISC_CONTROL_SUPPRESS_DEST_REGISTRATION_SHFT 23
-#define UVH_LB_BAU_MISC_CONTROL_SUPPRESS_DEST_REGISTRATION_MASK 0x0000000000800000UL
-#define UVH_LB_BAU_MISC_CONTROL_PROGRAMMED_INITIAL_PRIORITY_SHFT 24
-#define UVH_LB_BAU_MISC_CONTROL_PROGRAMMED_INITIAL_PRIORITY_MASK 0x0000000007000000UL
-#define UVH_LB_BAU_MISC_CONTROL_USE_INCOMING_PRIORITY_SHFT 27
-#define UVH_LB_BAU_MISC_CONTROL_USE_INCOMING_PRIORITY_MASK 0x0000000008000000UL
-#define UVH_LB_BAU_MISC_CONTROL_ENABLE_PROGRAMMED_INITIAL_PRIORITY_SHFT 28
-#define UVH_LB_BAU_MISC_CONTROL_ENABLE_PROGRAMMED_INITIAL_PRIORITY_MASK 0x0000000010000000UL
-#define UVH_LB_BAU_MISC_CONTROL_FUN_SHFT 48
-#define UVH_LB_BAU_MISC_CONTROL_FUN_MASK 0xffff000000000000UL
-
-union uvh_lb_bau_misc_control_u {
- unsigned long v;
- struct uvh_lb_bau_misc_control_s {
- unsigned long rejection_delay : 8; /* RW */
- unsigned long apic_mode : 1; /* RW */
- unsigned long force_broadcast : 1; /* RW */
- unsigned long force_lock_nop : 1; /* RW */
- unsigned long csi_agent_presence_vector : 3; /* RW */
- unsigned long descriptor_fetch_mode : 1; /* RW */
- unsigned long enable_intd_soft_ack_mode : 1; /* RW */
- unsigned long intd_soft_ack_timeout_period : 4; /* RW */
- unsigned long enable_dual_mapping_mode : 1; /* RW */
- unsigned long vga_io_port_decode_enable : 1; /* RW */
- unsigned long vga_io_port_16_bit_decode : 1; /* RW */
- unsigned long suppress_dest_registration : 1; /* RW */
- unsigned long programmed_initial_priority : 3; /* RW */
- unsigned long use_incoming_priority : 1; /* RW */
- unsigned long enable_programmed_initial_priority : 1; /* RW */
- unsigned long rsvd_29_47 : 19; /* */
- unsigned long fun : 16; /* RW */
- } s;
+/* UVH_RH10_GAM_MMIOH_OVERLAY_CONFIG0 */
+/* ========================================================================= */
+#define UVH_RH10_GAM_MMIOH_OVERLAY_CONFIG0 ( \
+ is_uv(UV5) ? 0x473000UL : \
+ 0)
+
+
+/* UVYH common defines */
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG0_BASE_SHFT 26
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG0_BASE_MASK 0x000ffffffc000000UL
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG0_M_IO_SHFT 52
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG0_M_IO_MASK 0x03f0000000000000UL
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG0_ENABLE_SHFT 63
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG0_ENABLE_MASK 0x8000000000000000UL
+
+#define UVH_RH10_GAM_MMIOH_OVERLAY_CONFIG0_BASE_MASK ( \
+ is_uv(UV5) ? 0x000ffffffc000000UL : \
+ 0)
+#define UVH_RH10_GAM_MMIOH_OVERLAY_CONFIG0_BASE_SHFT ( \
+ is_uv(UV5) ? 26 : \
+ -1)
+
+union uvh_rh10_gam_mmioh_overlay_config0_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh10_gam_mmioh_overlay_config0_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:26; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long undef_62:1; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVYH common struct */
+ struct uvyh_rh10_gam_mmioh_overlay_config0_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:26; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long undef_62:1; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_rh10_gam_mmioh_overlay_config0_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:26; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long undef_62:1; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } s5;
};
/* ========================================================================= */
-/* UVH_LB_BAU_SB_ACTIVATION_CONTROL */
+/* UVH_RH10_GAM_MMIOH_OVERLAY_CONFIG1 */
/* ========================================================================= */
-#define UVH_LB_BAU_SB_ACTIVATION_CONTROL 0x320020UL
-#define UVH_LB_BAU_SB_ACTIVATION_CONTROL_32 0x009a8
+#define UVH_RH10_GAM_MMIOH_OVERLAY_CONFIG1 ( \
+ is_uv(UV5) ? 0x474000UL : \
+ 0)
+
-#define UVH_LB_BAU_SB_ACTIVATION_CONTROL_INDEX_SHFT 0
-#define UVH_LB_BAU_SB_ACTIVATION_CONTROL_INDEX_MASK 0x000000000000003fUL
-#define UVH_LB_BAU_SB_ACTIVATION_CONTROL_PUSH_SHFT 62
-#define UVH_LB_BAU_SB_ACTIVATION_CONTROL_PUSH_MASK 0x4000000000000000UL
-#define UVH_LB_BAU_SB_ACTIVATION_CONTROL_INIT_SHFT 63
-#define UVH_LB_BAU_SB_ACTIVATION_CONTROL_INIT_MASK 0x8000000000000000UL
+/* UVYH common defines */
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG1_BASE_SHFT 26
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG1_BASE_MASK 0x000ffffffc000000UL
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG1_M_IO_SHFT 52
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG1_M_IO_MASK 0x03f0000000000000UL
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG1_ENABLE_SHFT 63
+#define UVYH_RH10_GAM_MMIOH_OVERLAY_CONFIG1_ENABLE_MASK 0x8000000000000000UL
-union uvh_lb_bau_sb_activation_control_u {
- unsigned long v;
- struct uvh_lb_bau_sb_activation_control_s {
- unsigned long index : 6; /* RW */
- unsigned long rsvd_6_61: 56; /* */
- unsigned long push : 1; /* WP */
- unsigned long init : 1; /* WP */
- } s;
+#define UVH_RH10_GAM_MMIOH_OVERLAY_CONFIG1_BASE_MASK ( \
+ is_uv(UV5) ? 0x000ffffffc000000UL : \
+ 0)
+#define UVH_RH10_GAM_MMIOH_OVERLAY_CONFIG1_BASE_SHFT ( \
+ is_uv(UV5) ? 26 : \
+ -1)
+
+union uvh_rh10_gam_mmioh_overlay_config1_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh10_gam_mmioh_overlay_config1_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:26; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long undef_62:1; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVYH common struct */
+ struct uvyh_rh10_gam_mmioh_overlay_config1_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:26; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long undef_62:1; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_rh10_gam_mmioh_overlay_config1_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:26; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long undef_62:1; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } s5;
};
/* ========================================================================= */
-/* UVH_LB_BAU_SB_ACTIVATION_STATUS_0 */
+/* UVH_RH10_GAM_MMIOH_REDIRECT_CONFIG0 */
/* ========================================================================= */
-#define UVH_LB_BAU_SB_ACTIVATION_STATUS_0 0x320030UL
-#define UVH_LB_BAU_SB_ACTIVATION_STATUS_0_32 0x009b0
+#define UVH_RH10_GAM_MMIOH_REDIRECT_CONFIG0 ( \
+ is_uv(UV5) ? 0x473800UL : \
+ 0)
+
+#define UVH_RH10_GAM_MMIOH_REDIRECT_CONFIG0_DEPTH ( \
+ is_uv(UV5) ? 128 : \
+ 0)
+
-#define UVH_LB_BAU_SB_ACTIVATION_STATUS_0_STATUS_SHFT 0
-#define UVH_LB_BAU_SB_ACTIVATION_STATUS_0_STATUS_MASK 0xffffffffffffffffUL
+/* UVYH common defines */
+#define UVYH_RH10_GAM_MMIOH_REDIRECT_CONFIG0_NASID_SHFT 0
+#define UVYH_RH10_GAM_MMIOH_REDIRECT_CONFIG0_NASID_MASK 0x000000000000007fUL
-union uvh_lb_bau_sb_activation_status_0_u {
- unsigned long v;
- struct uvh_lb_bau_sb_activation_status_0_s {
- unsigned long status : 64; /* RW */
- } s;
+
+union uvh_rh10_gam_mmioh_redirect_config0_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh10_gam_mmioh_redirect_config0_s {
+ unsigned long nasid:7; /* RW */
+ unsigned long rsvd_7_63:57;
+ } s;
+
+ /* UVYH common struct */
+ struct uvyh_rh10_gam_mmioh_redirect_config0_s {
+ unsigned long nasid:7; /* RW */
+ unsigned long rsvd_7_63:57;
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_rh10_gam_mmioh_redirect_config0_s {
+ unsigned long nasid:7; /* RW */
+ unsigned long rsvd_7_63:57;
+ } s5;
};
/* ========================================================================= */
-/* UVH_LB_BAU_SB_ACTIVATION_STATUS_1 */
+/* UVH_RH10_GAM_MMIOH_REDIRECT_CONFIG1 */
/* ========================================================================= */
-#define UVH_LB_BAU_SB_ACTIVATION_STATUS_1 0x320040UL
-#define UVH_LB_BAU_SB_ACTIVATION_STATUS_1_32 0x009b8
+#define UVH_RH10_GAM_MMIOH_REDIRECT_CONFIG1 ( \
+ is_uv(UV5) ? 0x474800UL : \
+ 0)
+
+#define UVH_RH10_GAM_MMIOH_REDIRECT_CONFIG1_DEPTH ( \
+ is_uv(UV5) ? 128 : \
+ 0)
+
-#define UVH_LB_BAU_SB_ACTIVATION_STATUS_1_STATUS_SHFT 0
-#define UVH_LB_BAU_SB_ACTIVATION_STATUS_1_STATUS_MASK 0xffffffffffffffffUL
+/* UVYH common defines */
+#define UVYH_RH10_GAM_MMIOH_REDIRECT_CONFIG1_NASID_SHFT 0
+#define UVYH_RH10_GAM_MMIOH_REDIRECT_CONFIG1_NASID_MASK 0x000000000000007fUL
-union uvh_lb_bau_sb_activation_status_1_u {
- unsigned long v;
- struct uvh_lb_bau_sb_activation_status_1_s {
- unsigned long status : 64; /* RW */
- } s;
+
+union uvh_rh10_gam_mmioh_redirect_config1_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh10_gam_mmioh_redirect_config1_s {
+ unsigned long nasid:7; /* RW */
+ unsigned long rsvd_7_63:57;
+ } s;
+
+ /* UVYH common struct */
+ struct uvyh_rh10_gam_mmioh_redirect_config1_s {
+ unsigned long nasid:7; /* RW */
+ unsigned long rsvd_7_63:57;
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_rh10_gam_mmioh_redirect_config1_s {
+ unsigned long nasid:7; /* RW */
+ unsigned long rsvd_7_63:57;
+ } s5;
};
/* ========================================================================= */
-/* UVH_LB_BAU_SB_DESCRIPTOR_BASE */
+/* UVH_RH10_GAM_MMR_OVERLAY_CONFIG */
/* ========================================================================= */
-#define UVH_LB_BAU_SB_DESCRIPTOR_BASE 0x320010UL
-#define UVH_LB_BAU_SB_DESCRIPTOR_BASE_32 0x009a0
+#define UVH_RH10_GAM_MMR_OVERLAY_CONFIG ( \
+ is_uv(UV5) ? 0x470090UL : \
+ 0)
+
+
+/* UVYH common defines */
+#define UVYH_RH10_GAM_MMR_OVERLAY_CONFIG_BASE_SHFT 25
+#define UVYH_RH10_GAM_MMR_OVERLAY_CONFIG_BASE_MASK 0x000ffffffe000000UL
+#define UVYH_RH10_GAM_MMR_OVERLAY_CONFIG_ENABLE_SHFT 63
+#define UVYH_RH10_GAM_MMR_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
-#define UVH_LB_BAU_SB_DESCRIPTOR_BASE_PAGE_ADDRESS_SHFT 12
-#define UVH_LB_BAU_SB_DESCRIPTOR_BASE_PAGE_ADDRESS_MASK 0x000007fffffff000UL
-#define UVH_LB_BAU_SB_DESCRIPTOR_BASE_NODE_ID_SHFT 49
-#define UVH_LB_BAU_SB_DESCRIPTOR_BASE_NODE_ID_MASK 0x7ffe000000000000UL
+#define UVH_RH10_GAM_MMR_OVERLAY_CONFIG_BASE_MASK ( \
+ is_uv(UV5) ? 0x000ffffffe000000UL : \
+ 0)
+#define UVH_RH10_GAM_MMR_OVERLAY_CONFIG_BASE_SHFT ( \
+ is_uv(UV5) ? 25 : \
+ -1)
-union uvh_lb_bau_sb_descriptor_base_u {
- unsigned long v;
- struct uvh_lb_bau_sb_descriptor_base_s {
- unsigned long rsvd_0_11 : 12; /* */
- unsigned long page_address : 31; /* RW */
- unsigned long rsvd_43_48 : 6; /* */
- unsigned long node_id : 14; /* RW */
- unsigned long rsvd_63 : 1; /* */
- } s;
+union uvh_rh10_gam_mmr_overlay_config_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh10_gam_mmr_overlay_config_s {
+ unsigned long undef_0_24:25; /* Undefined */
+ unsigned long base:27; /* RW */
+ unsigned long undef_52_62:11; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVYH common struct */
+ struct uvyh_rh10_gam_mmr_overlay_config_s {
+ unsigned long undef_0_24:25; /* Undefined */
+ unsigned long base:27; /* RW */
+ unsigned long undef_52_62:11; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_rh10_gam_mmr_overlay_config_s {
+ unsigned long undef_0_24:25; /* Undefined */
+ unsigned long base:27; /* RW */
+ unsigned long undef_52_62:11; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } s5;
};
/* ========================================================================= */
-/* UVH_LB_TARGET_PHYSICAL_APIC_ID_MASK */
+/* UVH_RH_GAM_ADDR_MAP_CONFIG */
/* ========================================================================= */
-#define UVH_LB_TARGET_PHYSICAL_APIC_ID_MASK 0x320130UL
-#define UVH_LB_TARGET_PHYSICAL_APIC_ID_MASK_32 0x009f0
+#define UVH_RH_GAM_ADDR_MAP_CONFIG ( \
+ is_uv(UV4) ? 0x480000UL : \
+ is_uv(UV3) ? 0x1600000UL : \
+ is_uv(UV2) ? 0x1600000UL : \
+ 0)
+
+
+/* UVXH common defines */
+#define UVXH_RH_GAM_ADDR_MAP_CONFIG_N_SKT_SHFT 6
+#define UVXH_RH_GAM_ADDR_MAP_CONFIG_N_SKT_MASK 0x00000000000003c0UL
+
+/* UV3 unique defines */
+#define UV3H_RH_GAM_ADDR_MAP_CONFIG_M_SKT_SHFT 0
+#define UV3H_RH_GAM_ADDR_MAP_CONFIG_M_SKT_MASK 0x000000000000003fUL
-#define UVH_LB_TARGET_PHYSICAL_APIC_ID_MASK_BIT_ENABLES_SHFT 0
-#define UVH_LB_TARGET_PHYSICAL_APIC_ID_MASK_BIT_ENABLES_MASK 0x00000000ffffffffUL
+/* UV2 unique defines */
+#define UV2H_RH_GAM_ADDR_MAP_CONFIG_M_SKT_SHFT 0
+#define UV2H_RH_GAM_ADDR_MAP_CONFIG_M_SKT_MASK 0x000000000000003fUL
-union uvh_lb_target_physical_apic_id_mask_u {
- unsigned long v;
- struct uvh_lb_target_physical_apic_id_mask_s {
- unsigned long bit_enables : 32; /* RW */
- unsigned long rsvd_32_63 : 32; /* */
+
+union uvh_rh_gam_addr_map_config_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_addr_map_config_s {
+ unsigned long rsvd_0_5:6;
+ unsigned long n_skt:4; /* RW */
+ unsigned long rsvd_10_63:54;
} s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_addr_map_config_s {
+ unsigned long rsvd_0_5:6;
+ unsigned long n_skt:4; /* RW */
+ unsigned long rsvd_10_63:54;
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_addr_map_config_s {
+ unsigned long rsvd_0_5:6;
+ unsigned long n_skt:4; /* RW */
+ unsigned long rsvd_10_63:54;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_addr_map_config_s {
+ unsigned long m_skt:6; /* RW */
+ unsigned long n_skt:4; /* RW */
+ unsigned long rsvd_10_63:54;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_rh_gam_addr_map_config_s {
+ unsigned long m_skt:6; /* RW */
+ unsigned long n_skt:4; /* RW */
+ unsigned long rsvd_10_63:54;
+ } s2;
};
/* ========================================================================= */
-/* UVH_NODE_ID */
+/* UVH_RH_GAM_ALIAS_0_OVERLAY_CONFIG */
/* ========================================================================= */
-#define UVH_NODE_ID 0x0UL
+#define UVH_RH_GAM_ALIAS_0_OVERLAY_CONFIG ( \
+ is_uv(UV4) ? 0x4800c8UL : \
+ is_uv(UV3) ? 0x16000c8UL : \
+ is_uv(UV2) ? 0x16000c8UL : \
+ 0)
-#define UVH_NODE_ID_FORCE1_SHFT 0
-#define UVH_NODE_ID_FORCE1_MASK 0x0000000000000001UL
-#define UVH_NODE_ID_MANUFACTURER_SHFT 1
-#define UVH_NODE_ID_MANUFACTURER_MASK 0x0000000000000ffeUL
-#define UVH_NODE_ID_PART_NUMBER_SHFT 12
-#define UVH_NODE_ID_PART_NUMBER_MASK 0x000000000ffff000UL
-#define UVH_NODE_ID_REVISION_SHFT 28
-#define UVH_NODE_ID_REVISION_MASK 0x00000000f0000000UL
-#define UVH_NODE_ID_NODE_ID_SHFT 32
-#define UVH_NODE_ID_NODE_ID_MASK 0x00007fff00000000UL
-#define UVH_NODE_ID_NODES_PER_BIT_SHFT 48
-#define UVH_NODE_ID_NODES_PER_BIT_MASK 0x007f000000000000UL
-#define UVH_NODE_ID_NI_PORT_SHFT 56
-#define UVH_NODE_ID_NI_PORT_MASK 0x0f00000000000000UL
-union uvh_node_id_u {
- unsigned long v;
- struct uvh_node_id_s {
- unsigned long force1 : 1; /* RO */
- unsigned long manufacturer : 11; /* RO */
- unsigned long part_number : 16; /* RO */
- unsigned long revision : 4; /* RO */
- unsigned long node_id : 15; /* RW */
- unsigned long rsvd_47 : 1; /* */
- unsigned long nodes_per_bit : 7; /* RW */
- unsigned long rsvd_55 : 1; /* */
- unsigned long ni_port : 4; /* RO */
- unsigned long rsvd_60_63 : 4; /* */
- } s;
+/* UVXH common defines */
+#define UVXH_RH_GAM_ALIAS_0_OVERLAY_CONFIG_BASE_SHFT 24
+#define UVXH_RH_GAM_ALIAS_0_OVERLAY_CONFIG_BASE_MASK 0x00000000ff000000UL
+#define UVXH_RH_GAM_ALIAS_0_OVERLAY_CONFIG_M_ALIAS_SHFT 48
+#define UVXH_RH_GAM_ALIAS_0_OVERLAY_CONFIG_M_ALIAS_MASK 0x001f000000000000UL
+#define UVXH_RH_GAM_ALIAS_0_OVERLAY_CONFIG_ENABLE_SHFT 63
+#define UVXH_RH_GAM_ALIAS_0_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
+
+
+union uvh_rh_gam_alias_0_overlay_config_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_alias_0_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_alias_0_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_alias_0_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_alias_0_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_rh_gam_alias_0_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s2;
};
/* ========================================================================= */
-/* UVH_NODE_PRESENT_TABLE */
+/* UVH_RH_GAM_ALIAS_0_REDIRECT_CONFIG */
/* ========================================================================= */
-#define UVH_NODE_PRESENT_TABLE 0x1400UL
-#define UVH_NODE_PRESENT_TABLE_DEPTH 16
+#define UVH_RH_GAM_ALIAS_0_REDIRECT_CONFIG ( \
+ is_uv(UV4) ? 0x4800d0UL : \
+ is_uv(UV3) ? 0x16000d0UL : \
+ is_uv(UV2) ? 0x16000d0UL : \
+ 0)
-#define UVH_NODE_PRESENT_TABLE_NODES_SHFT 0
-#define UVH_NODE_PRESENT_TABLE_NODES_MASK 0xffffffffffffffffUL
-union uvh_node_present_table_u {
- unsigned long v;
- struct uvh_node_present_table_s {
- unsigned long nodes : 64; /* RW */
- } s;
+/* UVXH common defines */
+#define UVXH_RH_GAM_ALIAS_0_REDIRECT_CONFIG_DEST_BASE_SHFT 24
+#define UVXH_RH_GAM_ALIAS_0_REDIRECT_CONFIG_DEST_BASE_MASK 0x00003fffff000000UL
+
+
+union uvh_rh_gam_alias_0_redirect_config_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_alias_0_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_alias_0_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_alias_0_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_alias_0_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_rh_gam_alias_0_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s2;
};
/* ========================================================================= */
-/* UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR */
+/* UVH_RH_GAM_ALIAS_1_OVERLAY_CONFIG */
/* ========================================================================= */
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR 0x16000c8UL
+#define UVH_RH_GAM_ALIAS_1_OVERLAY_CONFIG ( \
+ is_uv(UV4) ? 0x4800d8UL : \
+ is_uv(UV3) ? 0x16000d8UL : \
+ is_uv(UV2) ? 0x16000d8UL : \
+ 0)
+
+
+/* UVXH common defines */
+#define UVXH_RH_GAM_ALIAS_1_OVERLAY_CONFIG_BASE_SHFT 24
+#define UVXH_RH_GAM_ALIAS_1_OVERLAY_CONFIG_BASE_MASK 0x00000000ff000000UL
+#define UVXH_RH_GAM_ALIAS_1_OVERLAY_CONFIG_M_ALIAS_SHFT 48
+#define UVXH_RH_GAM_ALIAS_1_OVERLAY_CONFIG_M_ALIAS_MASK 0x001f000000000000UL
+#define UVXH_RH_GAM_ALIAS_1_OVERLAY_CONFIG_ENABLE_SHFT 63
+#define UVXH_RH_GAM_ALIAS_1_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
+
+
+union uvh_rh_gam_alias_1_overlay_config_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_alias_1_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_alias_1_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } sx;
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_BASE_SHFT 24
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_BASE_MASK 0x00000000ff000000UL
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_M_ALIAS_SHFT 48
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_M_ALIAS_MASK 0x001f000000000000UL
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_ENABLE_SHFT 63
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_0_MMR_ENABLE_MASK 0x8000000000000000UL
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_alias_1_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s4;
-union uvh_rh_gam_alias210_overlay_config_0_mmr_u {
- unsigned long v;
- struct uvh_rh_gam_alias210_overlay_config_0_mmr_s {
- unsigned long rsvd_0_23: 24; /* */
- unsigned long base : 8; /* RW */
- unsigned long rsvd_32_47: 16; /* */
- unsigned long m_alias : 5; /* RW */
- unsigned long rsvd_53_62: 10; /* */
- unsigned long enable : 1; /* RW */
- } s;
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_alias_1_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_rh_gam_alias_1_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s2;
};
/* ========================================================================= */
-/* UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR */
+/* UVH_RH_GAM_ALIAS_1_REDIRECT_CONFIG */
/* ========================================================================= */
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR 0x16000d8UL
+#define UVH_RH_GAM_ALIAS_1_REDIRECT_CONFIG ( \
+ is_uv(UV4) ? 0x4800e0UL : \
+ is_uv(UV3) ? 0x16000e0UL : \
+ is_uv(UV2) ? 0x16000e0UL : \
+ 0)
+
+
+/* UVXH common defines */
+#define UVXH_RH_GAM_ALIAS_1_REDIRECT_CONFIG_DEST_BASE_SHFT 24
+#define UVXH_RH_GAM_ALIAS_1_REDIRECT_CONFIG_DEST_BASE_MASK 0x00003fffff000000UL
+
+
+union uvh_rh_gam_alias_1_redirect_config_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_alias_1_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s;
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_BASE_SHFT 24
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_BASE_MASK 0x00000000ff000000UL
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_M_ALIAS_SHFT 48
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_M_ALIAS_MASK 0x001f000000000000UL
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_ENABLE_SHFT 63
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_1_MMR_ENABLE_MASK 0x8000000000000000UL
+ /* UVXH common struct */
+ struct uvxh_rh_gam_alias_1_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } sx;
-union uvh_rh_gam_alias210_overlay_config_1_mmr_u {
- unsigned long v;
- struct uvh_rh_gam_alias210_overlay_config_1_mmr_s {
- unsigned long rsvd_0_23: 24; /* */
- unsigned long base : 8; /* RW */
- unsigned long rsvd_32_47: 16; /* */
- unsigned long m_alias : 5; /* RW */
- unsigned long rsvd_53_62: 10; /* */
- unsigned long enable : 1; /* RW */
- } s;
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_alias_1_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_alias_1_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_rh_gam_alias_1_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s2;
};
/* ========================================================================= */
-/* UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR */
+/* UVH_RH_GAM_ALIAS_2_OVERLAY_CONFIG */
/* ========================================================================= */
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR 0x16000e8UL
+#define UVH_RH_GAM_ALIAS_2_OVERLAY_CONFIG ( \
+ is_uv(UV4) ? 0x4800e8UL : \
+ is_uv(UV3) ? 0x16000e8UL : \
+ is_uv(UV2) ? 0x16000e8UL : \
+ 0)
+
+
+/* UVXH common defines */
+#define UVXH_RH_GAM_ALIAS_2_OVERLAY_CONFIG_BASE_SHFT 24
+#define UVXH_RH_GAM_ALIAS_2_OVERLAY_CONFIG_BASE_MASK 0x00000000ff000000UL
+#define UVXH_RH_GAM_ALIAS_2_OVERLAY_CONFIG_M_ALIAS_SHFT 48
+#define UVXH_RH_GAM_ALIAS_2_OVERLAY_CONFIG_M_ALIAS_MASK 0x001f000000000000UL
+#define UVXH_RH_GAM_ALIAS_2_OVERLAY_CONFIG_ENABLE_SHFT 63
+#define UVXH_RH_GAM_ALIAS_2_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
+
+
+union uvh_rh_gam_alias_2_overlay_config_u {
+ unsigned long v;
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_BASE_SHFT 24
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_BASE_MASK 0x00000000ff000000UL
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_M_ALIAS_SHFT 48
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_M_ALIAS_MASK 0x001f000000000000UL
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_ENABLE_SHFT 63
-#define UVH_RH_GAM_ALIAS210_OVERLAY_CONFIG_2_MMR_ENABLE_MASK 0x8000000000000000UL
+ /* UVH common struct */
+ struct uvh_rh_gam_alias_2_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_alias_2_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_alias_2_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_alias_2_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s3;
-union uvh_rh_gam_alias210_overlay_config_2_mmr_u {
- unsigned long v;
- struct uvh_rh_gam_alias210_overlay_config_2_mmr_s {
- unsigned long rsvd_0_23: 24; /* */
- unsigned long base : 8; /* RW */
- unsigned long rsvd_32_47: 16; /* */
- unsigned long m_alias : 5; /* RW */
- unsigned long rsvd_53_62: 10; /* */
- unsigned long enable : 1; /* RW */
- } s;
+ /* UV2 unique struct */
+ struct uv2h_rh_gam_alias_2_overlay_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long base:8; /* RW */
+ unsigned long rsvd_32_47:16;
+ unsigned long m_alias:5; /* RW */
+ unsigned long rsvd_53_62:10;
+ unsigned long enable:1; /* RW */
+ } s2;
};
/* ========================================================================= */
-/* UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR */
+/* UVH_RH_GAM_ALIAS_2_REDIRECT_CONFIG */
/* ========================================================================= */
-#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR 0x16000d0UL
+#define UVH_RH_GAM_ALIAS_2_REDIRECT_CONFIG ( \
+ is_uv(UV4) ? 0x4800f0UL : \
+ is_uv(UV3) ? 0x16000f0UL : \
+ is_uv(UV2) ? 0x16000f0UL : \
+ 0)
+
+
+/* UVXH common defines */
+#define UVXH_RH_GAM_ALIAS_2_REDIRECT_CONFIG_DEST_BASE_SHFT 24
+#define UVXH_RH_GAM_ALIAS_2_REDIRECT_CONFIG_DEST_BASE_MASK 0x00003fffff000000UL
+
-#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR_DEST_BASE_SHFT 24
-#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_0_MMR_DEST_BASE_MASK 0x00003fffff000000UL
+union uvh_rh_gam_alias_2_redirect_config_u {
+ unsigned long v;
-union uvh_rh_gam_alias210_redirect_config_0_mmr_u {
- unsigned long v;
- struct uvh_rh_gam_alias210_redirect_config_0_mmr_s {
- unsigned long rsvd_0_23 : 24; /* */
- unsigned long dest_base : 22; /* RW */
- unsigned long rsvd_46_63: 18; /* */
- } s;
+ /* UVH common struct */
+ struct uvh_rh_gam_alias_2_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_alias_2_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_alias_2_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_alias_2_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_rh_gam_alias_2_redirect_config_s {
+ unsigned long rsvd_0_23:24;
+ unsigned long dest_base:22; /* RW */
+ unsigned long rsvd_46_63:18;
+ } s2;
};
/* ========================================================================= */
-/* UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR */
+/* UVH_RH_GAM_GRU_OVERLAY_CONFIG */
/* ========================================================================= */
-#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR 0x16000e0UL
+#define UVH_RH_GAM_GRU_OVERLAY_CONFIG ( \
+ is_uv(UV4) ? 0x480010UL : \
+ is_uv(UV3) ? 0x1600010UL : \
+ is_uv(UV2) ? 0x1600010UL : \
+ 0)
+
+
+/* UVXH common defines */
+#define UVXH_RH_GAM_GRU_OVERLAY_CONFIG_N_GRU_SHFT 52
+#define UVXH_RH_GAM_GRU_OVERLAY_CONFIG_N_GRU_MASK 0x00f0000000000000UL
+#define UVXH_RH_GAM_GRU_OVERLAY_CONFIG_ENABLE_SHFT 63
+#define UVXH_RH_GAM_GRU_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
-#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR_DEST_BASE_SHFT 24
-#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_1_MMR_DEST_BASE_MASK 0x00003fffff000000UL
+/* UV4A unique defines */
+#define UV4AH_RH_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT 26
+#define UV4AH_RH_GAM_GRU_OVERLAY_CONFIG_BASE_MASK 0x000ffffffc000000UL
-union uvh_rh_gam_alias210_redirect_config_1_mmr_u {
- unsigned long v;
- struct uvh_rh_gam_alias210_redirect_config_1_mmr_s {
- unsigned long rsvd_0_23 : 24; /* */
- unsigned long dest_base : 22; /* RW */
- unsigned long rsvd_46_63: 18; /* */
- } s;
+/* UV4 unique defines */
+#define UV4H_RH_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT 26
+#define UV4H_RH_GAM_GRU_OVERLAY_CONFIG_BASE_MASK 0x00003ffffc000000UL
+
+/* UV3 unique defines */
+#define UV3H_RH_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT 28
+#define UV3H_RH_GAM_GRU_OVERLAY_CONFIG_BASE_MASK 0x00003ffff0000000UL
+#define UV3H_RH_GAM_GRU_OVERLAY_CONFIG_MODE_SHFT 62
+#define UV3H_RH_GAM_GRU_OVERLAY_CONFIG_MODE_MASK 0x4000000000000000UL
+
+/* UV2 unique defines */
+#define UV2H_RH_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT 28
+#define UV2H_RH_GAM_GRU_OVERLAY_CONFIG_BASE_MASK 0x00003ffff0000000UL
+
+#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_BASE_MASK ( \
+ is_uv(UV4A) ? 0x000ffffffc000000UL : \
+ is_uv(UV4) ? 0x00003ffffc000000UL : \
+ is_uv(UV3) ? 0x00003ffff0000000UL : \
+ is_uv(UV2) ? 0x00003ffff0000000UL : \
+ 0)
+#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT ( \
+ is_uv(UV4) ? 26 : \
+ is_uv(UV3) ? 28 : \
+ is_uv(UV2) ? 28 : \
+ -1)
+
+union uvh_rh_gam_gru_overlay_config_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_gru_overlay_config_s {
+ unsigned long rsvd_0_45:46;
+ unsigned long rsvd_46_51:6;
+ unsigned long n_gru:4; /* RW */
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_gru_overlay_config_s {
+ unsigned long rsvd_0_45:46;
+ unsigned long rsvd_46_51:6;
+ unsigned long n_gru:4; /* RW */
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } sx;
+
+ /* UV4A unique struct */
+ struct uv4ah_rh_gam_gru_overlay_config_s {
+ unsigned long rsvd_0_24:25;
+ unsigned long undef_25:1; /* Undefined */
+ unsigned long base:26; /* RW */
+ unsigned long n_gru:4; /* RW */
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s4a;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_gru_overlay_config_s {
+ unsigned long rsvd_0_24:25;
+ unsigned long undef_25:1; /* Undefined */
+ unsigned long base:20; /* RW */
+ unsigned long rsvd_46_51:6;
+ unsigned long n_gru:4; /* RW */
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_gru_overlay_config_s {
+ unsigned long rsvd_0_27:28;
+ unsigned long base:18; /* RW */
+ unsigned long rsvd_46_51:6;
+ unsigned long n_gru:4; /* RW */
+ unsigned long rsvd_56_61:6;
+ unsigned long mode:1; /* RW */
+ unsigned long enable:1; /* RW */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_rh_gam_gru_overlay_config_s {
+ unsigned long rsvd_0_27:28;
+ unsigned long base:18; /* RW */
+ unsigned long rsvd_46_51:6;
+ unsigned long n_gru:4; /* RW */
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s2;
};
/* ========================================================================= */
-/* UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR */
+/* UVH_RH_GAM_MMIOH_OVERLAY_CONFIG */
/* ========================================================================= */
-#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR 0x16000f0UL
+#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG ( \
+ is_uv(UV2) ? 0x1600030UL : \
+ 0)
+
+
-#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR_DEST_BASE_SHFT 24
-#define UVH_RH_GAM_ALIAS210_REDIRECT_CONFIG_2_MMR_DEST_BASE_MASK 0x00003fffff000000UL
+/* UV2 unique defines */
+#define UV2H_RH_GAM_MMIOH_OVERLAY_CONFIG_BASE_SHFT 27
+#define UV2H_RH_GAM_MMIOH_OVERLAY_CONFIG_BASE_MASK 0x00003ffff8000000UL
+#define UV2H_RH_GAM_MMIOH_OVERLAY_CONFIG_M_IO_SHFT 46
+#define UV2H_RH_GAM_MMIOH_OVERLAY_CONFIG_M_IO_MASK 0x000fc00000000000UL
+#define UV2H_RH_GAM_MMIOH_OVERLAY_CONFIG_N_IO_SHFT 52
+#define UV2H_RH_GAM_MMIOH_OVERLAY_CONFIG_N_IO_MASK 0x00f0000000000000UL
+#define UV2H_RH_GAM_MMIOH_OVERLAY_CONFIG_ENABLE_SHFT 63
+#define UV2H_RH_GAM_MMIOH_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
-union uvh_rh_gam_alias210_redirect_config_2_mmr_u {
- unsigned long v;
- struct uvh_rh_gam_alias210_redirect_config_2_mmr_s {
- unsigned long rsvd_0_23 : 24; /* */
- unsigned long dest_base : 22; /* RW */
- unsigned long rsvd_46_63: 18; /* */
- } s;
+#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_BASE_SHFT ( \
+ is_uv(UV2) ? 27 : \
+ uv_undefined("UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_BASE_SHFT"))
+
+union uvh_rh_gam_mmioh_overlay_config_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_mmioh_overlay_config_s {
+ unsigned long rsvd_0_26:27;
+ unsigned long base:19; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4; /* RW */
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_mmioh_overlay_config_s {
+ unsigned long rsvd_0_26:27;
+ unsigned long base:19; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4; /* RW */
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } sx;
+
+ /* UV2 unique struct */
+ struct uv2h_rh_gam_mmioh_overlay_config_s {
+ unsigned long rsvd_0_26:27;
+ unsigned long base:19; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4; /* RW */
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s2;
};
/* ========================================================================= */
-/* UVH_RH_GAM_CONFIG_MMR */
+/* UVH_RH_GAM_MMIOH_OVERLAY_CONFIG0 */
/* ========================================================================= */
-#define UVH_RH_GAM_CONFIG_MMR 0x1600000UL
+#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG0 ( \
+ is_uv(UV4) ? 0x483000UL : \
+ is_uv(UV3) ? 0x1603000UL : \
+ 0)
+
+/* UV4A unique defines */
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG0_BASE_SHFT 26
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG0_BASE_MASK 0x000ffffffc000000UL
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG0_M_IO_SHFT 52
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG0_M_IO_MASK 0x03f0000000000000UL
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG0_ENABLE_SHFT 63
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG0_ENABLE_MASK 0x8000000000000000UL
+
+/* UV4 unique defines */
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG0_BASE_SHFT 26
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG0_BASE_MASK 0x00003ffffc000000UL
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG0_M_IO_SHFT 46
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG0_M_IO_MASK 0x000fc00000000000UL
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG0_ENABLE_SHFT 63
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG0_ENABLE_MASK 0x8000000000000000UL
+
+/* UV3 unique defines */
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG0_BASE_SHFT 26
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG0_BASE_MASK 0x00003ffffc000000UL
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG0_M_IO_SHFT 46
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG0_M_IO_MASK 0x000fc00000000000UL
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG0_ENABLE_SHFT 63
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG0_ENABLE_MASK 0x8000000000000000UL
+
+#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG0_BASE_MASK ( \
+ is_uv(UV4A) ? 0x000ffffffc000000UL : \
+ is_uv(UV4) ? 0x00003ffffc000000UL : \
+ is_uv(UV3) ? 0x00003ffffc000000UL : \
+ 0)
+#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG0_BASE_SHFT ( \
+ is_uv(UV4) ? 26 : \
+ is_uv(UV3) ? 26 : \
+ -1)
+
+union uvh_rh_gam_mmioh_overlay_config0_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_mmioh_overlay_config0_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_mmioh_overlay_config0_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } sx;
+
+ /* UV4A unique struct */
+ struct uv4ah_rh_gam_mmioh_overlay_config0_mmr_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:26; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long undef_62:1; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } s4a;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_mmioh_overlay_config0_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_mmioh_overlay_config0_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s3;
+};
+
+/* ========================================================================= */
+/* UVH_RH_GAM_MMIOH_OVERLAY_CONFIG1 */
+/* ========================================================================= */
+#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG1 ( \
+ is_uv(UV4) ? 0x484000UL : \
+ is_uv(UV3) ? 0x1604000UL : \
+ 0)
+
+/* UV4A unique defines */
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG1_BASE_SHFT 26
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG1_BASE_MASK 0x000ffffffc000000UL
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG1_M_IO_SHFT 52
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG1_M_IO_MASK 0x03f0000000000000UL
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG1_ENABLE_SHFT 63
+#define UV4AH_RH_GAM_MMIOH_OVERLAY_CONFIG1_ENABLE_MASK 0x8000000000000000UL
+
+/* UV4 unique defines */
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG1_BASE_SHFT 26
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG1_BASE_MASK 0x00003ffffc000000UL
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG1_M_IO_SHFT 46
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG1_M_IO_MASK 0x000fc00000000000UL
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG1_ENABLE_SHFT 63
+#define UV4H_RH_GAM_MMIOH_OVERLAY_CONFIG1_ENABLE_MASK 0x8000000000000000UL
+
+/* UV3 unique defines */
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG1_BASE_SHFT 26
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG1_BASE_MASK 0x00003ffffc000000UL
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG1_M_IO_SHFT 46
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG1_M_IO_MASK 0x000fc00000000000UL
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG1_ENABLE_SHFT 63
+#define UV3H_RH_GAM_MMIOH_OVERLAY_CONFIG1_ENABLE_MASK 0x8000000000000000UL
+
+#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG1_BASE_MASK ( \
+ is_uv(UV4A) ? 0x000ffffffc000000UL : \
+ is_uv(UV4) ? 0x00003ffffc000000UL : \
+ is_uv(UV3) ? 0x00003ffffc000000UL : \
+ 0)
+#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG1_BASE_SHFT ( \
+ is_uv(UV4) ? 26 : \
+ is_uv(UV3) ? 26 : \
+ -1)
+
+union uvh_rh_gam_mmioh_overlay_config1_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_mmioh_overlay_config1_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s;
-#define UVH_RH_GAM_CONFIG_MMR_M_SKT_SHFT 0
-#define UVH_RH_GAM_CONFIG_MMR_M_SKT_MASK 0x000000000000003fUL
-#define UVH_RH_GAM_CONFIG_MMR_N_SKT_SHFT 6
-#define UVH_RH_GAM_CONFIG_MMR_N_SKT_MASK 0x00000000000003c0UL
-#define UVH_RH_GAM_CONFIG_MMR_MMIOL_CFG_SHFT 12
-#define UVH_RH_GAM_CONFIG_MMR_MMIOL_CFG_MASK 0x0000000000001000UL
+ /* UVXH common struct */
+ struct uvxh_rh_gam_mmioh_overlay_config1_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } sx;
-union uvh_rh_gam_config_mmr_u {
- unsigned long v;
- struct uvh_rh_gam_config_mmr_s {
- unsigned long m_skt : 6; /* RW */
- unsigned long n_skt : 4; /* RW */
- unsigned long rsvd_10_11: 2; /* */
- unsigned long mmiol_cfg : 1; /* RW */
- unsigned long rsvd_13_63: 51; /* */
- } s;
+ /* UV4A unique struct */
+ struct uv4ah_rh_gam_mmioh_overlay_config1_mmr_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:26; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long undef_62:1; /* Undefined */
+ unsigned long enable:1; /* RW */
+ } s4a;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_mmioh_overlay_config1_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_mmioh_overlay_config1_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long m_io:6; /* RW */
+ unsigned long n_io:4;
+ unsigned long rsvd_56_62:7;
+ unsigned long enable:1; /* RW */
+ } s3;
};
/* ========================================================================= */
-/* UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR */
-/* ========================================================================= */
-#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR 0x1600010UL
-
-#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_BASE_SHFT 28
-#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_BASE_MASK 0x00003ffff0000000UL
-#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_GR4_SHFT 48
-#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_GR4_MASK 0x0001000000000000UL
-#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_N_GRU_SHFT 52
-#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_N_GRU_MASK 0x00f0000000000000UL
-#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_ENABLE_SHFT 63
-#define UVH_RH_GAM_GRU_OVERLAY_CONFIG_MMR_ENABLE_MASK 0x8000000000000000UL
-
-union uvh_rh_gam_gru_overlay_config_mmr_u {
- unsigned long v;
- struct uvh_rh_gam_gru_overlay_config_mmr_s {
- unsigned long rsvd_0_27: 28; /* */
- unsigned long base : 18; /* RW */
- unsigned long rsvd_46_47: 2; /* */
- unsigned long gr4 : 1; /* RW */
- unsigned long rsvd_49_51: 3; /* */
- unsigned long n_gru : 4; /* RW */
- unsigned long rsvd_56_62: 7; /* */
- unsigned long enable : 1; /* RW */
- } s;
+/* UVH_RH_GAM_MMIOH_REDIRECT_CONFIG0 */
+/* ========================================================================= */
+#define UVH_RH_GAM_MMIOH_REDIRECT_CONFIG0 ( \
+ is_uv(UV4) ? 0x483800UL : \
+ is_uv(UV3) ? 0x1603800UL : \
+ 0)
+
+#define UVH_RH_GAM_MMIOH_REDIRECT_CONFIG0_DEPTH ( \
+ is_uv(UV4) ? 128 : \
+ is_uv(UV3) ? 128 : \
+ 0)
+
+/* UV4A unique defines */
+#define UV4AH_RH_GAM_MMIOH_REDIRECT_CONFIG0_NASID_SHFT 0
+#define UV4AH_RH_GAM_MMIOH_REDIRECT_CONFIG0_NASID_MASK 0x0000000000000fffUL
+
+/* UV4 unique defines */
+#define UV4H_RH_GAM_MMIOH_REDIRECT_CONFIG0_NASID_SHFT 0
+#define UV4H_RH_GAM_MMIOH_REDIRECT_CONFIG0_NASID_MASK 0x0000000000007fffUL
+
+/* UV3 unique defines */
+#define UV3H_RH_GAM_MMIOH_REDIRECT_CONFIG0_NASID_SHFT 0
+#define UV3H_RH_GAM_MMIOH_REDIRECT_CONFIG0_NASID_MASK 0x0000000000007fffUL
+
+
+union uvh_rh_gam_mmioh_redirect_config0_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_mmioh_redirect_config0_s {
+ unsigned long nasid:15; /* RW */
+ unsigned long rsvd_15_63:49;
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_mmioh_redirect_config0_s {
+ unsigned long nasid:15; /* RW */
+ unsigned long rsvd_15_63:49;
+ } sx;
+
+ struct uv4ah_rh_gam_mmioh_redirect_config0_s {
+ unsigned long nasid:12; /* RW */
+ unsigned long rsvd_12_63:52;
+ } s4a;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_mmioh_redirect_config0_s {
+ unsigned long nasid:15; /* RW */
+ unsigned long rsvd_15_63:49;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_mmioh_redirect_config0_s {
+ unsigned long nasid:15; /* RW */
+ unsigned long rsvd_15_63:49;
+ } s3;
};
/* ========================================================================= */
-/* UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR */
-/* ========================================================================= */
-#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR 0x1600030UL
-
-#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_BASE_SHFT 30
-#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_BASE_MASK 0x00003fffc0000000UL
-#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_M_IO_SHFT 46
-#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_M_IO_MASK 0x000fc00000000000UL
-#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_N_IO_SHFT 52
-#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_N_IO_MASK 0x00f0000000000000UL
-#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_ENABLE_SHFT 63
-#define UVH_RH_GAM_MMIOH_OVERLAY_CONFIG_MMR_ENABLE_MASK 0x8000000000000000UL
-
-union uvh_rh_gam_mmioh_overlay_config_mmr_u {
- unsigned long v;
- struct uvh_rh_gam_mmioh_overlay_config_mmr_s {
- unsigned long rsvd_0_29: 30; /* */
- unsigned long base : 16; /* RW */
- unsigned long m_io : 6; /* RW */
- unsigned long n_io : 4; /* RW */
- unsigned long rsvd_56_62: 7; /* */
- unsigned long enable : 1; /* RW */
- } s;
+/* UVH_RH_GAM_MMIOH_REDIRECT_CONFIG1 */
+/* ========================================================================= */
+#define UVH_RH_GAM_MMIOH_REDIRECT_CONFIG1 ( \
+ is_uv(UV4) ? 0x484800UL : \
+ is_uv(UV3) ? 0x1604800UL : \
+ 0)
+
+#define UVH_RH_GAM_MMIOH_REDIRECT_CONFIG1_DEPTH ( \
+ is_uv(UV4) ? 128 : \
+ is_uv(UV3) ? 128 : \
+ 0)
+
+/* UV4A unique defines */
+#define UV4AH_RH_GAM_MMIOH_REDIRECT_CONFIG0_NASID_SHFT 0
+#define UV4AH_RH_GAM_MMIOH_REDIRECT_CONFIG0_NASID_MASK 0x0000000000000fffUL
+
+/* UV4 unique defines */
+#define UV4H_RH_GAM_MMIOH_REDIRECT_CONFIG1_NASID_SHFT 0
+#define UV4H_RH_GAM_MMIOH_REDIRECT_CONFIG1_NASID_MASK 0x0000000000007fffUL
+
+/* UV3 unique defines */
+#define UV3H_RH_GAM_MMIOH_REDIRECT_CONFIG1_NASID_SHFT 0
+#define UV3H_RH_GAM_MMIOH_REDIRECT_CONFIG1_NASID_MASK 0x0000000000007fffUL
+
+
+union uvh_rh_gam_mmioh_redirect_config1_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rh_gam_mmioh_redirect_config1_s {
+ unsigned long nasid:15; /* RW */
+ unsigned long rsvd_15_63:49;
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_mmioh_redirect_config1_s {
+ unsigned long nasid:15; /* RW */
+ unsigned long rsvd_15_63:49;
+ } sx;
+
+ struct uv4ah_rh_gam_mmioh_redirect_config1_s {
+ unsigned long nasid:12; /* RW */
+ unsigned long rsvd_12_63:52;
+ } s4a;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_mmioh_redirect_config1_s {
+ unsigned long nasid:15; /* RW */
+ unsigned long rsvd_15_63:49;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_mmioh_redirect_config1_s {
+ unsigned long nasid:15; /* RW */
+ unsigned long rsvd_15_63:49;
+ } s3;
};
/* ========================================================================= */
-/* UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR */
+/* UVH_RH_GAM_MMR_OVERLAY_CONFIG */
/* ========================================================================= */
-#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR 0x1600028UL
+#define UVH_RH_GAM_MMR_OVERLAY_CONFIG ( \
+ is_uv(UV4) ? 0x480028UL : \
+ is_uv(UV3) ? 0x1600028UL : \
+ is_uv(UV2) ? 0x1600028UL : \
+ 0)
+
+
+/* UVXH common defines */
+#define UVXH_RH_GAM_MMR_OVERLAY_CONFIG_BASE_SHFT 26
+#define UVXH_RH_GAM_MMR_OVERLAY_CONFIG_BASE_MASK ( \
+ is_uv(UV4A) ? 0x000ffffffc000000UL : \
+ is_uv(UV4) ? 0x00003ffffc000000UL : \
+ is_uv(UV3) ? 0x00003ffffc000000UL : \
+ is_uv(UV2) ? 0x00003ffffc000000UL : \
+ 0)
+#define UVXH_RH_GAM_MMR_OVERLAY_CONFIG_ENABLE_SHFT 63
+#define UVXH_RH_GAM_MMR_OVERLAY_CONFIG_ENABLE_MASK 0x8000000000000000UL
+
+/* UV4A unique defines */
+#define UV4AH_RH_GAM_GRU_OVERLAY_CONFIG_BASE_SHFT 26
+#define UV4AH_RH_GAM_GRU_OVERLAY_CONFIG_BASE_MASK 0x000ffffffc000000UL
+
+#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_BASE_MASK ( \
+ is_uv(UV4A) ? 0x000ffffffc000000UL : \
+ is_uv(UV4) ? 0x00003ffffc000000UL : \
+ is_uv(UV3) ? 0x00003ffffc000000UL : \
+ is_uv(UV2) ? 0x00003ffffc000000UL : \
+ 0)
+
+#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_BASE_SHFT ( \
+ is_uv(UV4) ? 26 : \
+ is_uv(UV3) ? 26 : \
+ is_uv(UV2) ? 26 : \
+ -1)
+
+union uvh_rh_gam_mmr_overlay_config_u {
+ unsigned long v;
-#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_SHFT 26
-#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_BASE_MASK 0x00003ffffc000000UL
-#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_DUAL_HUB_SHFT 46
-#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_DUAL_HUB_MASK 0x0000400000000000UL
-#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_ENABLE_SHFT 63
-#define UVH_RH_GAM_MMR_OVERLAY_CONFIG_MMR_ENABLE_MASK 0x8000000000000000UL
+ /* UVH common struct */
+ struct uvh_rh_gam_mmr_overlay_config_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long rsvd_46_62:17;
+ unsigned long enable:1; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_rh_gam_mmr_overlay_config_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long rsvd_46_62:17;
+ unsigned long enable:1; /* RW */
+ } sx;
+
+ /* UV4 unique struct */
+ struct uv4h_rh_gam_mmr_overlay_config_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long rsvd_46_62:17;
+ unsigned long enable:1; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rh_gam_mmr_overlay_config_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long rsvd_46_62:17;
+ unsigned long enable:1; /* RW */
+ } s3;
-union uvh_rh_gam_mmr_overlay_config_mmr_u {
- unsigned long v;
- struct uvh_rh_gam_mmr_overlay_config_mmr_s {
- unsigned long rsvd_0_25: 26; /* */
- unsigned long base : 20; /* RW */
- unsigned long dual_hub : 1; /* RW */
- unsigned long rsvd_47_62: 16; /* */
- unsigned long enable : 1; /* RW */
- } s;
+ /* UV2 unique struct */
+ struct uv2h_rh_gam_mmr_overlay_config_s {
+ unsigned long rsvd_0_25:26;
+ unsigned long base:20; /* RW */
+ unsigned long rsvd_46_62:17;
+ unsigned long enable:1; /* RW */
+ } s2;
};
/* ========================================================================= */
/* UVH_RTC */
/* ========================================================================= */
-#define UVH_RTC 0x340000UL
+#define UVH_RTC ( \
+ is_uv(UV5) ? 0xe0000UL : \
+ is_uv(UV4) ? 0xe0000UL : \
+ is_uv(UV3) ? 0x340000UL : \
+ is_uv(UV2) ? 0x340000UL : \
+ 0)
+
+/* UVH common defines*/
+#define UVH_RTC_REAL_TIME_CLOCK_SHFT 0
+#define UVH_RTC_REAL_TIME_CLOCK_MASK 0x00ffffffffffffffUL
-#define UVH_RTC_REAL_TIME_CLOCK_SHFT 0
-#define UVH_RTC_REAL_TIME_CLOCK_MASK 0x00ffffffffffffffUL
union uvh_rtc_u {
- unsigned long v;
- struct uvh_rtc_s {
- unsigned long real_time_clock : 56; /* RW */
- unsigned long rsvd_56_63 : 8; /* */
- } s;
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rtc_s {
+ unsigned long real_time_clock:56; /* RW */
+ unsigned long rsvd_56_63:8;
+ } s;
+
+ /* UV5 unique struct */
+ struct uv5h_rtc_s {
+ unsigned long real_time_clock:56; /* RW */
+ unsigned long rsvd_56_63:8;
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_rtc_s {
+ unsigned long real_time_clock:56; /* RW */
+ unsigned long rsvd_56_63:8;
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rtc_s {
+ unsigned long real_time_clock:56; /* RW */
+ unsigned long rsvd_56_63:8;
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_rtc_s {
+ unsigned long real_time_clock:56; /* RW */
+ unsigned long rsvd_56_63:8;
+ } s2;
};
/* ========================================================================= */
@@ -1066,38 +4428,210 @@ union uvh_rtc_u {
/* ========================================================================= */
#define UVH_RTC1_INT_CONFIG 0x615c0UL
-#define UVH_RTC1_INT_CONFIG_VECTOR_SHFT 0
-#define UVH_RTC1_INT_CONFIG_VECTOR_MASK 0x00000000000000ffUL
-#define UVH_RTC1_INT_CONFIG_DM_SHFT 8
-#define UVH_RTC1_INT_CONFIG_DM_MASK 0x0000000000000700UL
-#define UVH_RTC1_INT_CONFIG_DESTMODE_SHFT 11
-#define UVH_RTC1_INT_CONFIG_DESTMODE_MASK 0x0000000000000800UL
-#define UVH_RTC1_INT_CONFIG_STATUS_SHFT 12
-#define UVH_RTC1_INT_CONFIG_STATUS_MASK 0x0000000000001000UL
-#define UVH_RTC1_INT_CONFIG_P_SHFT 13
-#define UVH_RTC1_INT_CONFIG_P_MASK 0x0000000000002000UL
-#define UVH_RTC1_INT_CONFIG_T_SHFT 15
-#define UVH_RTC1_INT_CONFIG_T_MASK 0x0000000000008000UL
-#define UVH_RTC1_INT_CONFIG_M_SHFT 16
-#define UVH_RTC1_INT_CONFIG_M_MASK 0x0000000000010000UL
-#define UVH_RTC1_INT_CONFIG_APIC_ID_SHFT 32
-#define UVH_RTC1_INT_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
+/* UVH common defines*/
+#define UVH_RTC1_INT_CONFIG_VECTOR_SHFT 0
+#define UVH_RTC1_INT_CONFIG_VECTOR_MASK 0x00000000000000ffUL
+#define UVH_RTC1_INT_CONFIG_DM_SHFT 8
+#define UVH_RTC1_INT_CONFIG_DM_MASK 0x0000000000000700UL
+#define UVH_RTC1_INT_CONFIG_DESTMODE_SHFT 11
+#define UVH_RTC1_INT_CONFIG_DESTMODE_MASK 0x0000000000000800UL
+#define UVH_RTC1_INT_CONFIG_STATUS_SHFT 12
+#define UVH_RTC1_INT_CONFIG_STATUS_MASK 0x0000000000001000UL
+#define UVH_RTC1_INT_CONFIG_P_SHFT 13
+#define UVH_RTC1_INT_CONFIG_P_MASK 0x0000000000002000UL
+#define UVH_RTC1_INT_CONFIG_T_SHFT 15
+#define UVH_RTC1_INT_CONFIG_T_MASK 0x0000000000008000UL
+#define UVH_RTC1_INT_CONFIG_M_SHFT 16
+#define UVH_RTC1_INT_CONFIG_M_MASK 0x0000000000010000UL
+#define UVH_RTC1_INT_CONFIG_APIC_ID_SHFT 32
+#define UVH_RTC1_INT_CONFIG_APIC_ID_MASK 0xffffffff00000000UL
+
union uvh_rtc1_int_config_u {
- unsigned long v;
- struct uvh_rtc1_int_config_s {
- unsigned long vector_ : 8; /* RW */
- unsigned long dm : 3; /* RW */
- unsigned long destmode : 1; /* RW */
- unsigned long status : 1; /* RO */
- unsigned long p : 1; /* RO */
- unsigned long rsvd_14 : 1; /* */
- unsigned long t : 1; /* RO */
- unsigned long m : 1; /* RW */
- unsigned long rsvd_17_31: 15; /* */
- unsigned long apic_id : 32; /* RW */
- } s;
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_rtc1_int_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s;
+
+ /* UV5 unique struct */
+ struct uv5h_rtc1_int_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_rtc1_int_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_rtc1_int_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_rtc1_int_config_s {
+ unsigned long vector_:8; /* RW */
+ unsigned long dm:3; /* RW */
+ unsigned long destmode:1; /* RW */
+ unsigned long status:1; /* RO */
+ unsigned long p:1; /* RO */
+ unsigned long rsvd_14:1;
+ unsigned long t:1; /* RO */
+ unsigned long m:1; /* RW */
+ unsigned long rsvd_17_31:15;
+ unsigned long apic_id:32; /* RW */
+ } s2;
+};
+
+/* ========================================================================= */
+/* UVH_SCRATCH5 */
+/* ========================================================================= */
+#define UVH_SCRATCH5 ( \
+ is_uv(UV5) ? 0xb0200UL : \
+ is_uv(UV4) ? 0xb0200UL : \
+ is_uv(UV3) ? 0x2d0200UL : \
+ is_uv(UV2) ? 0x2d0200UL : \
+ 0)
+#define UV5H_SCRATCH5 0xb0200UL
+#define UV4H_SCRATCH5 0xb0200UL
+#define UV3H_SCRATCH5 0x2d0200UL
+#define UV2H_SCRATCH5 0x2d0200UL
+
+/* UVH common defines*/
+#define UVH_SCRATCH5_SCRATCH5_SHFT 0
+#define UVH_SCRATCH5_SCRATCH5_MASK 0xffffffffffffffffUL
+
+/* UVXH common defines */
+#define UVXH_SCRATCH5_SCRATCH5_SHFT 0
+#define UVXH_SCRATCH5_SCRATCH5_MASK 0xffffffffffffffffUL
+
+/* UVYH common defines */
+#define UVYH_SCRATCH5_SCRATCH5_SHFT 0
+#define UVYH_SCRATCH5_SCRATCH5_MASK 0xffffffffffffffffUL
+
+/* UV5 unique defines */
+#define UV5H_SCRATCH5_SCRATCH5_SHFT 0
+#define UV5H_SCRATCH5_SCRATCH5_MASK 0xffffffffffffffffUL
+
+/* UV4 unique defines */
+#define UV4H_SCRATCH5_SCRATCH5_SHFT 0
+#define UV4H_SCRATCH5_SCRATCH5_MASK 0xffffffffffffffffUL
+
+/* UV3 unique defines */
+#define UV3H_SCRATCH5_SCRATCH5_SHFT 0
+#define UV3H_SCRATCH5_SCRATCH5_MASK 0xffffffffffffffffUL
+
+/* UV2 unique defines */
+#define UV2H_SCRATCH5_SCRATCH5_SHFT 0
+#define UV2H_SCRATCH5_SCRATCH5_MASK 0xffffffffffffffffUL
+
+
+union uvh_scratch5_u {
+ unsigned long v;
+
+ /* UVH common struct */
+ struct uvh_scratch5_s {
+ unsigned long scratch5:64; /* RW */
+ } s;
+
+ /* UVXH common struct */
+ struct uvxh_scratch5_s {
+ unsigned long scratch5:64; /* RW */
+ } sx;
+
+ /* UVYH common struct */
+ struct uvyh_scratch5_s {
+ unsigned long scratch5:64; /* RW */
+ } sy;
+
+ /* UV5 unique struct */
+ struct uv5h_scratch5_s {
+ unsigned long scratch5:64; /* RW */
+ } s5;
+
+ /* UV4 unique struct */
+ struct uv4h_scratch5_s {
+ unsigned long scratch5:64; /* RW */
+ } s4;
+
+ /* UV3 unique struct */
+ struct uv3h_scratch5_s {
+ unsigned long scratch5:64; /* RW */
+ } s3;
+
+ /* UV2 unique struct */
+ struct uv2h_scratch5_s {
+ unsigned long scratch5:64; /* RW */
+ } s2;
};
+/* ========================================================================= */
+/* UVH_SCRATCH5_ALIAS */
+/* ========================================================================= */
+#define UVH_SCRATCH5_ALIAS ( \
+ is_uv(UV5) ? 0xb0208UL : \
+ is_uv(UV4) ? 0xb0208UL : \
+ is_uv(UV3) ? 0x2d0208UL : \
+ is_uv(UV2) ? 0x2d0208UL : \
+ 0)
+#define UV5H_SCRATCH5_ALIAS 0xb0208UL
+#define UV4H_SCRATCH5_ALIAS 0xb0208UL
+#define UV3H_SCRATCH5_ALIAS 0x2d0208UL
+#define UV2H_SCRATCH5_ALIAS 0x2d0208UL
+
+
+/* ========================================================================= */
+/* UVH_SCRATCH5_ALIAS_2 */
+/* ========================================================================= */
+#define UVH_SCRATCH5_ALIAS_2 ( \
+ is_uv(UV5) ? 0xb0210UL : \
+ is_uv(UV4) ? 0xb0210UL : \
+ is_uv(UV3) ? 0x2d0210UL : \
+ is_uv(UV2) ? 0x2d0210UL : \
+ 0)
+#define UV5H_SCRATCH5_ALIAS_2 0xb0210UL
+#define UV4H_SCRATCH5_ALIAS_2 0xb0210UL
+#define UV3H_SCRATCH5_ALIAS_2 0x2d0210UL
+#define UV2H_SCRATCH5_ALIAS_2 0x2d0210UL
+
+
-#endif /* __ASM_UV_MMRS_X86_H__ */
+#endif /* _ASM_X86_UV_UV_MMRS_H */
diff --git a/arch/x86/include/asm/vdso.h b/arch/x86/include/asm/vdso.h
index 9064052b73de..d7f6592b74a9 100644
--- a/arch/x86/include/asm/vdso.h
+++ b/arch/x86/include/asm/vdso.h
@@ -1,47 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_VDSO_H
#define _ASM_X86_VDSO_H
+#include <asm/page_types.h>
+#include <linux/linkage.h>
+#include <linux/init.h>
+
+#ifndef __ASSEMBLER__
+
+#include <linux/mm_types.h>
+
+struct vdso_image {
+ void *data;
+ unsigned long size; /* Always a multiple of PAGE_SIZE */
+
+ unsigned long alt, alt_len;
+ unsigned long extable_base, extable_len;
+ const void *extable;
+
+ long sym_vvar_start; /* Negative offset to the vvar area */
+
+ long sym_vvar_page;
+ long sym_pvclock_page;
+ long sym_hvclock_page;
+ long sym_timens_page;
+ long sym_VDSO32_NOTE_MASK;
+ long sym___kernel_sigreturn;
+ long sym___kernel_rt_sigreturn;
+ long sym___kernel_vsyscall;
+ long sym_int80_landing_pad;
+ long sym_vdso32_sigreturn_landing_pad;
+ long sym_vdso32_rt_sigreturn_landing_pad;
+};
+
#ifdef CONFIG_X86_64
-extern const char VDSO64_PRELINK[];
-
-/*
- * Given a pointer to the vDSO image, find the pointer to VDSO64_name
- * as that symbol is defined in the vDSO sources or linker script.
- */
-#define VDSO64_SYMBOL(base, name) \
-({ \
- extern const char VDSO64_##name[]; \
- (void *)(VDSO64_##name - VDSO64_PRELINK + (unsigned long)(base)); \
-})
+extern const struct vdso_image vdso_image_64;
+#endif
+
+#ifdef CONFIG_X86_X32_ABI
+extern const struct vdso_image vdso_image_x32;
#endif
#if defined CONFIG_X86_32 || defined CONFIG_COMPAT
-extern const char VDSO32_PRELINK[];
-
-/*
- * Given a pointer to the vDSO image, find the pointer to VDSO32_name
- * as that symbol is defined in the vDSO sources or linker script.
- */
-#define VDSO32_SYMBOL(base, name) \
-({ \
- extern const char VDSO32_##name[]; \
- (void *)(VDSO32_##name - VDSO32_PRELINK + (unsigned long)(base)); \
-})
+extern const struct vdso_image vdso_image_32;
#endif
-/*
- * These symbols are defined with the addresses in the vsyscall page.
- * See vsyscall-sigreturn.S.
- */
-extern void __user __kernel_sigreturn;
-extern void __user __kernel_rt_sigreturn;
-
-/*
- * These symbols are defined by vdso32.S to mark the bounds
- * of the ELF DSO images included therein.
- */
-extern const char vdso32_int80_start, vdso32_int80_end;
-extern const char vdso32_syscall_start, vdso32_syscall_end;
-extern const char vdso32_sysenter_start, vdso32_sysenter_end;
+extern int __init init_vdso_image(const struct vdso_image *image);
+
+extern int map_vdso_once(const struct vdso_image *image, unsigned long addr);
+
+extern bool fixup_vdso_exception(struct pt_regs *regs, int trapnr,
+ unsigned long error_code,
+ unsigned long fault_addr);
+#endif /* __ASSEMBLER__ */
#endif /* _ASM_X86_VDSO_H */
diff --git a/arch/x86/include/asm/vdso/clocksource.h b/arch/x86/include/asm/vdso/clocksource.h
new file mode 100644
index 000000000000..136e5e57cfe1
--- /dev/null
+++ b/arch/x86/include/asm/vdso/clocksource.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_VDSO_CLOCKSOURCE_H
+#define __ASM_VDSO_CLOCKSOURCE_H
+
+#define VDSO_ARCH_CLOCKMODES \
+ VDSO_CLOCKMODE_TSC, \
+ VDSO_CLOCKMODE_PVCLOCK, \
+ VDSO_CLOCKMODE_HVCLOCK
+
+#define HAVE_VDSO_CLOCKMODE_HVCLOCK
+
+#endif /* __ASM_VDSO_CLOCKSOURCE_H */
diff --git a/arch/x86/include/asm/vdso/gettimeofday.h b/arch/x86/include/asm/vdso/gettimeofday.h
new file mode 100644
index 000000000000..4cf6794f9d68
--- /dev/null
+++ b/arch/x86/include/asm/vdso/gettimeofday.h
@@ -0,0 +1,325 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Fast user context implementation of clock_gettime, gettimeofday, and time.
+ *
+ * Copyright (C) 2019 ARM Limited.
+ * Copyright 2006 Andi Kleen, SUSE Labs.
+ * 32 Bit compat layer by Stefani Seibold <stefani@seibold.net>
+ * sponsored by Rohde & Schwarz GmbH & Co. KG Munich/Germany
+ */
+#ifndef __ASM_VDSO_GETTIMEOFDAY_H
+#define __ASM_VDSO_GETTIMEOFDAY_H
+
+#ifndef __ASSEMBLY__
+
+#include <uapi/linux/time.h>
+#include <asm/vgtod.h>
+#include <asm/vvar.h>
+#include <asm/unistd.h>
+#include <asm/msr.h>
+#include <asm/pvclock.h>
+#include <clocksource/hyperv_timer.h>
+
+#define __vdso_data (VVAR(_vdso_data))
+#define __timens_vdso_data (TIMENS(_vdso_data))
+
+#define VDSO_HAS_TIME 1
+
+#define VDSO_HAS_CLOCK_GETRES 1
+
+/*
+ * Declare the memory-mapped vclock data pages. These come from hypervisors.
+ * If we ever reintroduce something like direct access to an MMIO clock like
+ * the HPET again, it will go here as well.
+ *
+ * A load from any of these pages will segfault if the clock in question is
+ * disabled, so appropriate compiler barriers and checks need to be used
+ * to prevent stray loads.
+ *
+ * These declarations MUST NOT be const. The compiler will assume that
+ * an extern const variable has genuinely constant contents, and the
+ * resulting code won't work, since the whole point is that these pages
+ * change over time, possibly while we're accessing them.
+ */
+
+#ifdef CONFIG_PARAVIRT_CLOCK
+/*
+ * This is the vCPU 0 pvclock page. We only use pvclock from the vDSO
+ * if the hypervisor tells us that all vCPUs can get valid data from the
+ * vCPU 0 page.
+ */
+extern struct pvclock_vsyscall_time_info pvclock_page
+ __attribute__((visibility("hidden")));
+#endif
+
+#ifdef CONFIG_HYPERV_TIMER
+extern struct ms_hyperv_tsc_page hvclock_page
+ __attribute__((visibility("hidden")));
+#endif
+
+#ifdef CONFIG_TIME_NS
+static __always_inline
+const struct vdso_data *__arch_get_timens_vdso_data(const struct vdso_data *vd)
+{
+ return __timens_vdso_data;
+}
+#endif
+
+#ifndef BUILD_VDSO32
+
+static __always_inline
+long clock_gettime_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ long ret;
+
+ asm ("syscall" : "=a" (ret), "=m" (*_ts) :
+ "0" (__NR_clock_gettime), "D" (_clkid), "S" (_ts) :
+ "rcx", "r11");
+
+ return ret;
+}
+
+static __always_inline
+long gettimeofday_fallback(struct __kernel_old_timeval *_tv,
+ struct timezone *_tz)
+{
+ long ret;
+
+ asm("syscall" : "=a" (ret) :
+ "0" (__NR_gettimeofday), "D" (_tv), "S" (_tz) : "memory");
+
+ return ret;
+}
+
+static __always_inline
+long clock_getres_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ long ret;
+
+ asm ("syscall" : "=a" (ret), "=m" (*_ts) :
+ "0" (__NR_clock_getres), "D" (_clkid), "S" (_ts) :
+ "rcx", "r11");
+
+ return ret;
+}
+
+#else
+
+static __always_inline
+long clock_gettime_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ long ret;
+
+ asm (
+ "mov %%ebx, %%edx \n"
+ "mov %[clock], %%ebx \n"
+ "call __kernel_vsyscall \n"
+ "mov %%edx, %%ebx \n"
+ : "=a" (ret), "=m" (*_ts)
+ : "0" (__NR_clock_gettime64), [clock] "g" (_clkid), "c" (_ts)
+ : "edx");
+
+ return ret;
+}
+
+static __always_inline
+long clock_gettime32_fallback(clockid_t _clkid, struct old_timespec32 *_ts)
+{
+ long ret;
+
+ asm (
+ "mov %%ebx, %%edx \n"
+ "mov %[clock], %%ebx \n"
+ "call __kernel_vsyscall \n"
+ "mov %%edx, %%ebx \n"
+ : "=a" (ret), "=m" (*_ts)
+ : "0" (__NR_clock_gettime), [clock] "g" (_clkid), "c" (_ts)
+ : "edx");
+
+ return ret;
+}
+
+static __always_inline
+long gettimeofday_fallback(struct __kernel_old_timeval *_tv,
+ struct timezone *_tz)
+{
+ long ret;
+
+ asm(
+ "mov %%ebx, %%edx \n"
+ "mov %2, %%ebx \n"
+ "call __kernel_vsyscall \n"
+ "mov %%edx, %%ebx \n"
+ : "=a" (ret)
+ : "0" (__NR_gettimeofday), "g" (_tv), "c" (_tz)
+ : "memory", "edx");
+
+ return ret;
+}
+
+static __always_inline long
+clock_getres_fallback(clockid_t _clkid, struct __kernel_timespec *_ts)
+{
+ long ret;
+
+ asm (
+ "mov %%ebx, %%edx \n"
+ "mov %[clock], %%ebx \n"
+ "call __kernel_vsyscall \n"
+ "mov %%edx, %%ebx \n"
+ : "=a" (ret), "=m" (*_ts)
+ : "0" (__NR_clock_getres_time64), [clock] "g" (_clkid), "c" (_ts)
+ : "edx");
+
+ return ret;
+}
+
+static __always_inline
+long clock_getres32_fallback(clockid_t _clkid, struct old_timespec32 *_ts)
+{
+ long ret;
+
+ asm (
+ "mov %%ebx, %%edx \n"
+ "mov %[clock], %%ebx \n"
+ "call __kernel_vsyscall \n"
+ "mov %%edx, %%ebx \n"
+ : "=a" (ret), "=m" (*_ts)
+ : "0" (__NR_clock_getres), [clock] "g" (_clkid), "c" (_ts)
+ : "edx");
+
+ return ret;
+}
+
+#endif
+
+#ifdef CONFIG_PARAVIRT_CLOCK
+static u64 vread_pvclock(void)
+{
+ const struct pvclock_vcpu_time_info *pvti = &pvclock_page.pvti;
+ u32 version;
+ u64 ret;
+
+ /*
+ * Note: The kernel and hypervisor must guarantee that cpu ID
+ * number maps 1:1 to per-CPU pvclock time info.
+ *
+ * Because the hypervisor is entirely unaware of guest userspace
+ * preemption, it cannot guarantee that per-CPU pvclock time
+ * info is updated if the underlying CPU changes or that that
+ * version is increased whenever underlying CPU changes.
+ *
+ * On KVM, we are guaranteed that pvti updates for any vCPU are
+ * atomic as seen by *all* vCPUs. This is an even stronger
+ * guarantee than we get with a normal seqlock.
+ *
+ * On Xen, we don't appear to have that guarantee, but Xen still
+ * supplies a valid seqlock using the version field.
+ *
+ * We only do pvclock vdso timing at all if
+ * PVCLOCK_TSC_STABLE_BIT is set, and we interpret that bit to
+ * mean that all vCPUs have matching pvti and that the TSC is
+ * synced, so we can just look at vCPU 0's pvti.
+ */
+
+ do {
+ version = pvclock_read_begin(pvti);
+
+ if (unlikely(!(pvti->flags & PVCLOCK_TSC_STABLE_BIT)))
+ return U64_MAX;
+
+ ret = __pvclock_read_cycles(pvti, rdtsc_ordered());
+ } while (pvclock_read_retry(pvti, version));
+
+ return ret;
+}
+#endif
+
+#ifdef CONFIG_HYPERV_TIMER
+static u64 vread_hvclock(void)
+{
+ return hv_read_tsc_page(&hvclock_page);
+}
+#endif
+
+static inline u64 __arch_get_hw_counter(s32 clock_mode,
+ const struct vdso_data *vd)
+{
+ if (likely(clock_mode == VDSO_CLOCKMODE_TSC))
+ return (u64)rdtsc_ordered();
+ /*
+ * For any memory-mapped vclock type, we need to make sure that gcc
+ * doesn't cleverly hoist a load before the mode check. Otherwise we
+ * might end up touching the memory-mapped page even if the vclock in
+ * question isn't enabled, which will segfault. Hence the barriers.
+ */
+#ifdef CONFIG_PARAVIRT_CLOCK
+ if (clock_mode == VDSO_CLOCKMODE_PVCLOCK) {
+ barrier();
+ return vread_pvclock();
+ }
+#endif
+#ifdef CONFIG_HYPERV_TIMER
+ if (clock_mode == VDSO_CLOCKMODE_HVCLOCK) {
+ barrier();
+ return vread_hvclock();
+ }
+#endif
+ return U64_MAX;
+}
+
+static __always_inline const struct vdso_data *__arch_get_vdso_data(void)
+{
+ return __vdso_data;
+}
+
+static inline bool arch_vdso_clocksource_ok(const struct vdso_data *vd)
+{
+ return true;
+}
+#define vdso_clocksource_ok arch_vdso_clocksource_ok
+
+/*
+ * Clocksource read value validation to handle PV and HyperV clocksources
+ * which can be invalidated asynchronously and indicate invalidation by
+ * returning U64_MAX, which can be effectively tested by checking for a
+ * negative value after casting it to s64.
+ */
+static inline bool arch_vdso_cycles_ok(u64 cycles)
+{
+ return (s64)cycles >= 0;
+}
+#define vdso_cycles_ok arch_vdso_cycles_ok
+
+/*
+ * x86 specific delta calculation.
+ *
+ * The regular implementation assumes that clocksource reads are globally
+ * monotonic. The TSC can be slightly off across sockets which can cause
+ * the regular delta calculation (@cycles - @last) to return a huge time
+ * jump.
+ *
+ * Therefore it needs to be verified that @cycles are greater than
+ * @last. If not then use @last, which is the base time of the current
+ * conversion period.
+ *
+ * This variant also removes the masking of the subtraction because the
+ * clocksource mask of all VDSO capable clocksources on x86 is U64_MAX
+ * which would result in a pointless operation. The compiler cannot
+ * optimize it away as the mask comes from the vdso data and is not compile
+ * time constant.
+ */
+static __always_inline
+u64 vdso_calc_delta(u64 cycles, u64 last, u64 mask, u32 mult)
+{
+ if (cycles > last)
+ return (cycles - last) * mult;
+ return 0;
+}
+#define vdso_calc_delta vdso_calc_delta
+
+int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts);
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_GETTIMEOFDAY_H */
diff --git a/arch/x86/include/asm/vdso/processor.h b/arch/x86/include/asm/vdso/processor.h
new file mode 100644
index 000000000000..2cbce97d29ea
--- /dev/null
+++ b/arch/x86/include/asm/vdso/processor.h
@@ -0,0 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020 ARM Ltd.
+ */
+#ifndef __ASM_VDSO_PROCESSOR_H
+#define __ASM_VDSO_PROCESSOR_H
+
+#ifndef __ASSEMBLY__
+
+/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */
+static __always_inline void rep_nop(void)
+{
+ asm volatile("rep; nop" ::: "memory");
+}
+
+static __always_inline void cpu_relax(void)
+{
+ rep_nop();
+}
+
+struct getcpu_cache;
+
+notrace long __vdso_getcpu(unsigned *cpu, unsigned *node, struct getcpu_cache *unused);
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_PROCESSOR_H */
diff --git a/arch/x86/include/asm/vdso/vsyscall.h b/arch/x86/include/asm/vdso/vsyscall.h
new file mode 100644
index 000000000000..be199a9b2676
--- /dev/null
+++ b/arch/x86/include/asm/vdso/vsyscall.h
@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __ASM_VDSO_VSYSCALL_H
+#define __ASM_VDSO_VSYSCALL_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/hrtimer.h>
+#include <linux/timekeeper_internal.h>
+#include <vdso/datapage.h>
+#include <asm/vgtod.h>
+#include <asm/vvar.h>
+
+DEFINE_VVAR(struct vdso_data, _vdso_data);
+/*
+ * Update the vDSO data page to keep in sync with kernel timekeeping.
+ */
+static __always_inline
+struct vdso_data *__x86_get_k_vdso_data(void)
+{
+ return _vdso_data;
+}
+#define __arch_get_k_vdso_data __x86_get_k_vdso_data
+
+/* The asm-generic header needs to be included after the definitions above */
+#include <asm-generic/vdso/vsyscall.h>
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* __ASM_VDSO_VSYSCALL_H */
diff --git a/arch/x86/include/asm/vermagic.h b/arch/x86/include/asm/vermagic.h
new file mode 100644
index 000000000000..75884d2cdec3
--- /dev/null
+++ b/arch/x86/include/asm/vermagic.h
@@ -0,0 +1,68 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _ASM_VERMAGIC_H
+#define _ASM_VERMAGIC_H
+
+#ifdef CONFIG_X86_64
+/* X86_64 does not define MODULE_PROC_FAMILY */
+#elif defined CONFIG_M486SX
+#define MODULE_PROC_FAMILY "486SX "
+#elif defined CONFIG_M486
+#define MODULE_PROC_FAMILY "486 "
+#elif defined CONFIG_M586
+#define MODULE_PROC_FAMILY "586 "
+#elif defined CONFIG_M586TSC
+#define MODULE_PROC_FAMILY "586TSC "
+#elif defined CONFIG_M586MMX
+#define MODULE_PROC_FAMILY "586MMX "
+#elif defined CONFIG_MCORE2
+#define MODULE_PROC_FAMILY "CORE2 "
+#elif defined CONFIG_MATOM
+#define MODULE_PROC_FAMILY "ATOM "
+#elif defined CONFIG_M686
+#define MODULE_PROC_FAMILY "686 "
+#elif defined CONFIG_MPENTIUMII
+#define MODULE_PROC_FAMILY "PENTIUMII "
+#elif defined CONFIG_MPENTIUMIII
+#define MODULE_PROC_FAMILY "PENTIUMIII "
+#elif defined CONFIG_MPENTIUMM
+#define MODULE_PROC_FAMILY "PENTIUMM "
+#elif defined CONFIG_MPENTIUM4
+#define MODULE_PROC_FAMILY "PENTIUM4 "
+#elif defined CONFIG_MK6
+#define MODULE_PROC_FAMILY "K6 "
+#elif defined CONFIG_MK7
+#define MODULE_PROC_FAMILY "K7 "
+#elif defined CONFIG_MK8
+#define MODULE_PROC_FAMILY "K8 "
+#elif defined CONFIG_MELAN
+#define MODULE_PROC_FAMILY "ELAN "
+#elif defined CONFIG_MCRUSOE
+#define MODULE_PROC_FAMILY "CRUSOE "
+#elif defined CONFIG_MEFFICEON
+#define MODULE_PROC_FAMILY "EFFICEON "
+#elif defined CONFIG_MWINCHIPC6
+#define MODULE_PROC_FAMILY "WINCHIPC6 "
+#elif defined CONFIG_MWINCHIP3D
+#define MODULE_PROC_FAMILY "WINCHIP3D "
+#elif defined CONFIG_MCYRIXIII
+#define MODULE_PROC_FAMILY "CYRIXIII "
+#elif defined CONFIG_MVIAC3_2
+#define MODULE_PROC_FAMILY "VIAC3-2 "
+#elif defined CONFIG_MVIAC7
+#define MODULE_PROC_FAMILY "VIAC7 "
+#elif defined CONFIG_MGEODEGX1
+#define MODULE_PROC_FAMILY "GEODEGX1 "
+#elif defined CONFIG_MGEODE_LX
+#define MODULE_PROC_FAMILY "GEODE "
+#else
+#error unknown processor family
+#endif
+
+#ifdef CONFIG_X86_32
+# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY
+#else
+# define MODULE_ARCH_VERMAGIC ""
+#endif
+
+#endif /* _ASM_VERMAGIC_H */
diff --git a/arch/x86/include/asm/vga.h b/arch/x86/include/asm/vga.h
index c4b9dc2f67c5..46f9b2deab4d 100644
--- a/arch/x86/include/asm/vga.h
+++ b/arch/x86/include/asm/vga.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* Access to VGA videoram
*
@@ -7,12 +8,24 @@
#ifndef _ASM_X86_VGA_H
#define _ASM_X86_VGA_H
+#include <asm/set_memory.h>
+
/*
* On the PC, we can just recalculate addresses and then
* access the videoram directly without any black magic.
+ * To support memory encryption however, we need to access
+ * the videoram as decrypted memory.
*/
-#define VGA_MAP_MEM(x, s) (unsigned long)phys_to_virt(x)
+#define VGA_MAP_MEM(x, s) \
+({ \
+ unsigned long start = (unsigned long)phys_to_virt(x); \
+ \
+ if (IS_ENABLED(CONFIG_AMD_MEM_ENCRYPT)) \
+ set_memory_decrypted(start, (s) >> PAGE_SHIFT); \
+ \
+ start; \
+})
#define vga_readb(x) (*(x))
#define vga_writeb(x, y) (*(y) = (x))
diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h
index 3d61e204826f..7aa38b2ad8a9 100644
--- a/arch/x86/include/asm/vgtod.h
+++ b/arch/x86/include/asm/vgtod.h
@@ -1,30 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_VGTOD_H
#define _ASM_X86_VGTOD_H
-#include <asm/vsyscall.h>
-#include <linux/clocksource.h>
+/*
+ * This check is required to prevent ARCH=um to include
+ * unwanted headers.
+ */
+#ifdef CONFIG_GENERIC_GETTIMEOFDAY
+#include <linux/compiler.h>
+#include <asm/clocksource.h>
+#include <vdso/datapage.h>
+#include <vdso/helpers.h>
-struct vsyscall_gtod_data {
- seqlock_t lock;
+#include <uapi/linux/time.h>
- /* open coded 'struct timespec' */
- time_t wall_time_sec;
- u32 wall_time_nsec;
-
- int sysctl_enabled;
- struct timezone sys_tz;
- struct { /* extract of a clocksource struct */
- cycle_t (*vread)(void);
- cycle_t cycle_last;
- cycle_t mask;
- u32 mult;
- u32 shift;
- } clock;
- struct timespec wall_to_monotonic;
- struct timespec wall_time_coarse;
-};
-extern struct vsyscall_gtod_data __vsyscall_gtod_data
-__section_vsyscall_gtod_data;
-extern struct vsyscall_gtod_data vsyscall_gtod_data;
+#ifdef BUILD_VDSO32_64
+typedef u64 gtod_long_t;
+#else
+typedef unsigned long gtod_long_t;
+#endif
+#endif /* CONFIG_GENERIC_GETTIMEOFDAY */
#endif /* _ASM_X86_VGTOD_H */
diff --git a/arch/x86/include/asm/virtext.h b/arch/x86/include/asm/virtext.h
index e0f9aa16358b..3b12e6b99412 100644
--- a/arch/x86/include/asm/virtext.h
+++ b/arch/x86/include/asm/virtext.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/* CPU virtualization extensions handling
*
* This should carry the code for handling CPU virtualization extensions
@@ -8,18 +9,15 @@
* Copyright (C) 2008, Red Hat Inc.
*
* Contains code from KVM, Copyright (C) 2006 Qumranet, Inc.
- *
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
*/
#ifndef _ASM_X86_VIRTEX_H
#define _ASM_X86_VIRTEX_H
#include <asm/processor.h>
-#include <asm/system.h>
#include <asm/vmx.h>
#include <asm/svm.h>
+#include <asm/tlbflush.h>
/*
* VMX functions:
@@ -32,21 +30,34 @@ static inline int cpu_has_vmx(void)
}
-/** Disable VMX on the current CPU
+/**
+ * cpu_vmxoff() - Disable VMX on the current CPU
+ *
+ * Disable VMX and clear CR4.VMXE (even if VMXOFF faults)
*
- * vmxoff causes a undefined-opcode exception if vmxon was not run
- * on the CPU previously. Only call this function if you know VMX
- * is enabled.
+ * Note, VMXOFF causes a #UD if the CPU is !post-VMXON, but it's impossible to
+ * atomically track post-VMXON state, e.g. this may be called in NMI context.
+ * Eat all faults as all other faults on VMXOFF faults are mode related, i.e.
+ * faults are guaranteed to be due to the !post-VMXON check unless the CPU is
+ * magically in RM, VM86, compat mode, or at CPL>0.
*/
-static inline void cpu_vmxoff(void)
+static inline int cpu_vmxoff(void)
{
- asm volatile (ASM_VMX_VMXOFF : : : "cc");
- write_cr4(read_cr4() & ~X86_CR4_VMXE);
+ asm_volatile_goto("1: vmxoff\n\t"
+ _ASM_EXTABLE(1b, %l[fault])
+ ::: "cc", "memory" : fault);
+
+ cr4_clear_bits(X86_CR4_VMXE);
+ return 0;
+
+fault:
+ cr4_clear_bits(X86_CR4_VMXE);
+ return -EIO;
}
static inline int cpu_vmx_enabled(void)
{
- return read_cr4() & X86_CR4_VMXE;
+ return __read_cr4() & X86_CR4_VMXE;
}
/** Disable VMX if it is enabled on the current CPU
@@ -83,23 +94,20 @@ static inline void cpu_emergency_vmxoff(void)
*/
static inline int cpu_has_svm(const char **msg)
{
- uint32_t eax, ebx, ecx, edx;
-
- if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) {
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD &&
+ boot_cpu_data.x86_vendor != X86_VENDOR_HYGON) {
if (msg)
- *msg = "not amd";
+ *msg = "not amd or hygon";
return 0;
}
- cpuid(0x80000000, &eax, &ebx, &ecx, &edx);
- if (eax < SVM_CPUID_FUNC) {
+ if (boot_cpu_data.extended_cpuid_level < SVM_CPUID_FUNC) {
if (msg)
*msg = "can't execute cpuid_8000000a";
return 0;
}
- cpuid(0x80000001, &eax, &ebx, &ecx, &edx);
- if (!(ecx & (1 << SVM_CPUID_FEATURE_SHIFT))) {
+ if (!boot_cpu_has(X86_FEATURE_SVM)) {
if (msg)
*msg = "svm not available";
return 0;
@@ -118,7 +126,21 @@ static inline void cpu_svm_disable(void)
wrmsrl(MSR_VM_HSAVE_PA, 0);
rdmsrl(MSR_EFER, efer);
- wrmsrl(MSR_EFER, efer & ~EFER_SVME);
+ if (efer & EFER_SVME) {
+ /*
+ * Force GIF=1 prior to disabling SVM to ensure INIT and NMI
+ * aren't blocked, e.g. if a fatal error occurred between CLGI
+ * and STGI. Note, STGI may #UD if SVM is disabled from NMI
+ * context between reading EFER and executing STGI. In that
+ * case, GIF must already be set, otherwise the NMI would have
+ * been blocked, so just eat the fault.
+ */
+ asm_volatile_goto("1: stgi\n\t"
+ _ASM_EXTABLE(1b, %l[fault])
+ ::: "memory" : fault);
+fault:
+ wrmsrl(MSR_EFER, efer & ~EFER_SVME);
+ }
}
/** Makes sure SVM is disabled, if it is supported on the CPU
diff --git a/arch/x86/include/asm/visws/cobalt.h b/arch/x86/include/asm/visws/cobalt.h
deleted file mode 100644
index 2edb37637ead..000000000000
--- a/arch/x86/include/asm/visws/cobalt.h
+++ /dev/null
@@ -1,127 +0,0 @@
-#ifndef _ASM_X86_VISWS_COBALT_H
-#define _ASM_X86_VISWS_COBALT_H
-
-#include <asm/fixmap.h>
-
-/*
- * Cobalt SGI Visual Workstation system ASIC
- */
-
-#define CO_CPU_NUM_PHYS 0x1e00
-#define CO_CPU_TAB_PHYS (CO_CPU_NUM_PHYS + 2)
-
-#define CO_CPU_MAX 4
-
-#define CO_CPU_PHYS 0xc2000000
-#define CO_APIC_PHYS 0xc4000000
-
-/* see set_fixmap() and asm/fixmap.h */
-#define CO_CPU_VADDR (fix_to_virt(FIX_CO_CPU))
-#define CO_APIC_VADDR (fix_to_virt(FIX_CO_APIC))
-
-/* Cobalt CPU registers -- relative to CO_CPU_VADDR, use co_cpu_*() */
-#define CO_CPU_REV 0x08
-#define CO_CPU_CTRL 0x10
-#define CO_CPU_STAT 0x20
-#define CO_CPU_TIMEVAL 0x30
-
-/* CO_CPU_CTRL bits */
-#define CO_CTRL_TIMERUN 0x04 /* 0 == disabled */
-#define CO_CTRL_TIMEMASK 0x08 /* 0 == unmasked */
-
-/* CO_CPU_STATUS bits */
-#define CO_STAT_TIMEINTR 0x02 /* (r) 1 == int pend, (w) 0 == clear */
-
-/* CO_CPU_TIMEVAL value */
-#define CO_TIME_HZ 100000000 /* Cobalt core rate */
-
-/* Cobalt APIC registers -- relative to CO_APIC_VADDR, use co_apic_*() */
-#define CO_APIC_HI(n) (((n) * 0x10) + 4)
-#define CO_APIC_LO(n) ((n) * 0x10)
-#define CO_APIC_ID 0x0ffc
-
-/* CO_APIC_ID bits */
-#define CO_APIC_ENABLE 0x00000100
-
-/* CO_APIC_LO bits */
-#define CO_APIC_MASK 0x00010000 /* 0 = enabled */
-#define CO_APIC_LEVEL 0x00008000 /* 0 = edge */
-
-/*
- * Where things are physically wired to Cobalt
- * #defines with no board _<type>_<rev>_ are common to all (thus far)
- */
-#define CO_APIC_IDE0 4
-#define CO_APIC_IDE1 2 /* Only on 320 */
-
-#define CO_APIC_8259 12 /* serial, floppy, par-l-l */
-
-/* Lithium PCI Bridge A -- "the one with 82557 Ethernet" */
-#define CO_APIC_PCIA_BASE0 0 /* and 1 */ /* slot 0, line 0 */
-#define CO_APIC_PCIA_BASE123 5 /* and 6 */ /* slot 0, line 1 */
-
-#define CO_APIC_PIIX4_USB 7 /* this one is weird */
-
-/* Lithium PCI Bridge B -- "the one with PIIX4" */
-#define CO_APIC_PCIB_BASE0 8 /* and 9-12 *//* slot 0, line 0 */
-#define CO_APIC_PCIB_BASE123 13 /* 14.15 */ /* slot 0, line 1 */
-
-#define CO_APIC_VIDOUT0 16
-#define CO_APIC_VIDOUT1 17
-#define CO_APIC_VIDIN0 18
-#define CO_APIC_VIDIN1 19
-
-#define CO_APIC_LI_AUDIO 22
-
-#define CO_APIC_AS 24
-#define CO_APIC_RE 25
-
-#define CO_APIC_CPU 28 /* Timer and Cache interrupt */
-#define CO_APIC_NMI 29
-#define CO_APIC_LAST CO_APIC_NMI
-
-/*
- * This is how irqs are assigned on the Visual Workstation.
- * Legacy devices get irq's 1-15 (system clock is 0 and is CO_APIC_CPU).
- * All other devices (including PCI) go to Cobalt and are irq's 16 on up.
- */
-#define CO_IRQ_APIC0 16 /* irq of apic entry 0 */
-#define IS_CO_APIC(irq) ((irq) >= CO_IRQ_APIC0)
-#define CO_IRQ(apic) (CO_IRQ_APIC0 + (apic)) /* apic ent to irq */
-#define CO_APIC(irq) ((irq) - CO_IRQ_APIC0) /* irq to apic ent */
-#define CO_IRQ_IDE0 14 /* knowledge of... */
-#define CO_IRQ_IDE1 15 /* ... ide driver defaults! */
-#define CO_IRQ_8259 CO_IRQ(CO_APIC_8259)
-
-#ifdef CONFIG_X86_VISWS_APIC
-static inline void co_cpu_write(unsigned long reg, unsigned long v)
-{
- *((volatile unsigned long *)(CO_CPU_VADDR+reg))=v;
-}
-
-static inline unsigned long co_cpu_read(unsigned long reg)
-{
- return *((volatile unsigned long *)(CO_CPU_VADDR+reg));
-}
-
-static inline void co_apic_write(unsigned long reg, unsigned long v)
-{
- *((volatile unsigned long *)(CO_APIC_VADDR+reg))=v;
-}
-
-static inline unsigned long co_apic_read(unsigned long reg)
-{
- return *((volatile unsigned long *)(CO_APIC_VADDR+reg));
-}
-#endif
-
-extern char visws_board_type;
-
-#define VISWS_320 0
-#define VISWS_540 1
-
-extern char visws_board_rev;
-
-extern int pci_visws_init(void);
-
-#endif /* _ASM_X86_VISWS_COBALT_H */
diff --git a/arch/x86/include/asm/visws/lithium.h b/arch/x86/include/asm/visws/lithium.h
deleted file mode 100644
index a10d89bc1270..000000000000
--- a/arch/x86/include/asm/visws/lithium.h
+++ /dev/null
@@ -1,53 +0,0 @@
-#ifndef _ASM_X86_VISWS_LITHIUM_H
-#define _ASM_X86_VISWS_LITHIUM_H
-
-#include <asm/fixmap.h>
-
-/*
- * Lithium is the SGI Visual Workstation I/O ASIC
- */
-
-#define LI_PCI_A_PHYS 0xfc000000 /* Enet is dev 3 */
-#define LI_PCI_B_PHYS 0xfd000000 /* PIIX4 is here */
-
-/* see set_fixmap() and asm/fixmap.h */
-#define LI_PCIA_VADDR (fix_to_virt(FIX_LI_PCIA))
-#define LI_PCIB_VADDR (fix_to_virt(FIX_LI_PCIB))
-
-/* Not a standard PCI? (not in linux/pci.h) */
-#define LI_PCI_BUSNUM 0x44 /* lo8: primary, hi8: sub */
-#define LI_PCI_INTEN 0x46
-
-/* LI_PCI_INTENT bits */
-#define LI_INTA_0 0x0001
-#define LI_INTA_1 0x0002
-#define LI_INTA_2 0x0004
-#define LI_INTA_3 0x0008
-#define LI_INTA_4 0x0010
-#define LI_INTB 0x0020
-#define LI_INTC 0x0040
-#define LI_INTD 0x0080
-
-/* More special purpose macros... */
-static inline void li_pcia_write16(unsigned long reg, unsigned short v)
-{
- *((volatile unsigned short *)(LI_PCIA_VADDR+reg))=v;
-}
-
-static inline unsigned short li_pcia_read16(unsigned long reg)
-{
- return *((volatile unsigned short *)(LI_PCIA_VADDR+reg));
-}
-
-static inline void li_pcib_write16(unsigned long reg, unsigned short v)
-{
- *((volatile unsigned short *)(LI_PCIB_VADDR+reg))=v;
-}
-
-static inline unsigned short li_pcib_read16(unsigned long reg)
-{
- return *((volatile unsigned short *)(LI_PCIB_VADDR+reg));
-}
-
-#endif /* _ASM_X86_VISWS_LITHIUM_H */
-
diff --git a/arch/x86/include/asm/visws/piix4.h b/arch/x86/include/asm/visws/piix4.h
deleted file mode 100644
index d0af4d338e7f..000000000000
--- a/arch/x86/include/asm/visws/piix4.h
+++ /dev/null
@@ -1,107 +0,0 @@
-#ifndef _ASM_X86_VISWS_PIIX4_H
-#define _ASM_X86_VISWS_PIIX4_H
-
-/*
- * PIIX4 as used on SGI Visual Workstations
- */
-
-#define PIIX_PM_START 0x0F80
-
-#define SIO_GPIO_START 0x0FC0
-
-#define SIO_PM_START 0x0FC8
-
-#define PMBASE PIIX_PM_START
-#define GPIREG0 (PMBASE+0x30)
-#define GPIREG(x) (GPIREG0+((x)/8))
-#define GPIBIT(x) (1 << ((x)%8))
-
-#define PIIX_GPI_BD_ID1 18
-#define PIIX_GPI_BD_ID2 19
-#define PIIX_GPI_BD_ID3 20
-#define PIIX_GPI_BD_ID4 21
-#define PIIX_GPI_BD_REG GPIREG(PIIX_GPI_BD_ID1)
-#define PIIX_GPI_BD_MASK (GPIBIT(PIIX_GPI_BD_ID1) | \
- GPIBIT(PIIX_GPI_BD_ID2) | \
- GPIBIT(PIIX_GPI_BD_ID3) | \
- GPIBIT(PIIX_GPI_BD_ID4) )
-
-#define PIIX_GPI_BD_SHIFT (PIIX_GPI_BD_ID1 % 8)
-
-#define SIO_INDEX 0x2e
-#define SIO_DATA 0x2f
-
-#define SIO_DEV_SEL 0x7
-#define SIO_DEV_ENB 0x30
-#define SIO_DEV_MSB 0x60
-#define SIO_DEV_LSB 0x61
-
-#define SIO_GP_DEV 0x7
-
-#define SIO_GP_BASE SIO_GPIO_START
-#define SIO_GP_MSB (SIO_GP_BASE>>8)
-#define SIO_GP_LSB (SIO_GP_BASE&0xff)
-
-#define SIO_GP_DATA1 (SIO_GP_BASE+0)
-
-#define SIO_PM_DEV 0x8
-
-#define SIO_PM_BASE SIO_PM_START
-#define SIO_PM_MSB (SIO_PM_BASE>>8)
-#define SIO_PM_LSB (SIO_PM_BASE&0xff)
-#define SIO_PM_INDEX (SIO_PM_BASE+0)
-#define SIO_PM_DATA (SIO_PM_BASE+1)
-
-#define SIO_PM_FER2 0x1
-
-#define SIO_PM_GP_EN 0x80
-
-
-
-/*
- * This is the dev/reg where generating a config cycle will
- * result in a PCI special cycle.
- */
-#define SPECIAL_DEV 0xff
-#define SPECIAL_REG 0x00
-
-/*
- * PIIX4 needs to see a special cycle with the following data
- * to be convinced the processor has gone into the stop grant
- * state. PIIX4 insists on seeing this before it will power
- * down a system.
- */
-#define PIIX_SPECIAL_STOP 0x00120002
-
-#define PIIX4_RESET_PORT 0xcf9
-#define PIIX4_RESET_VAL 0x6
-
-#define PMSTS_PORT 0xf80 // 2 bytes PM Status
-#define PMEN_PORT 0xf82 // 2 bytes PM Enable
-#define PMCNTRL_PORT 0xf84 // 2 bytes PM Control
-
-#define PM_SUSPEND_ENABLE 0x2000 // start sequence to suspend state
-
-/*
- * PMSTS and PMEN I/O bit definitions.
- * (Bits are the same in both registers)
- */
-#define PM_STS_RSM (1<<15) // Resume Status
-#define PM_STS_PWRBTNOR (1<<11) // Power Button Override
-#define PM_STS_RTC (1<<10) // RTC status
-#define PM_STS_PWRBTN (1<<8) // Power Button Pressed?
-#define PM_STS_GBL (1<<5) // Global Status
-#define PM_STS_BM (1<<4) // Bus Master Status
-#define PM_STS_TMROF (1<<0) // Timer Overflow Status.
-
-/*
- * Stop clock GPI register
- */
-#define PIIX_GPIREG0 (0xf80 + 0x30)
-
-/*
- * Stop clock GPI bit in GPIREG0
- */
-#define PIIX_GPI_STPCLK 0x4 // STPCLK signal routed back in
-
-#endif /* _ASM_X86_VISWS_PIIX4_H */
diff --git a/arch/x86/include/asm/visws/sgivw.h b/arch/x86/include/asm/visws/sgivw.h
deleted file mode 100644
index 5fbf63e1003c..000000000000
--- a/arch/x86/include/asm/visws/sgivw.h
+++ /dev/null
@@ -1,5 +0,0 @@
-/*
- * Frame buffer position and size:
- */
-extern unsigned long sgivwfb_mem_phys;
-extern unsigned long sgivwfb_mem_size;
diff --git a/arch/x86/include/asm/vm86.h b/arch/x86/include/asm/vm86.h
index f9303602fbc0..9e8ac5073ecb 100644
--- a/arch/x86/include/asm/vm86.h
+++ b/arch/x86/include/asm/vm86.h
@@ -1,133 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_VM86_H
#define _ASM_X86_VM86_H
-/*
- * I'm guessing at the VIF/VIP flag usage, but hope that this is how
- * the Pentium uses them. Linux will return from vm86 mode when both
- * VIF and VIP is set.
- *
- * On a Pentium, we could probably optimize the virtual flags directly
- * in the eflags register instead of doing it "by hand" in vflags...
- *
- * Linus
- */
-
-#include <asm/processor-flags.h>
-
-#define BIOSSEG 0x0f000
-
-#define CPU_086 0
-#define CPU_186 1
-#define CPU_286 2
-#define CPU_386 3
-#define CPU_486 4
-#define CPU_586 5
-
-/*
- * Return values for the 'vm86()' system call
- */
-#define VM86_TYPE(retval) ((retval) & 0xff)
-#define VM86_ARG(retval) ((retval) >> 8)
-
-#define VM86_SIGNAL 0 /* return due to signal */
-#define VM86_UNKNOWN 1 /* unhandled GP fault
- - IO-instruction or similar */
-#define VM86_INTx 2 /* int3/int x instruction (ARG = x) */
-#define VM86_STI 3 /* sti/popf/iret instruction enabled
- virtual interrupts */
-
-/*
- * Additional return values when invoking new vm86()
- */
-#define VM86_PICRETURN 4 /* return due to pending PIC request */
-#define VM86_TRAP 6 /* return due to DOS-debugger request */
-
-/*
- * function codes when invoking new vm86()
- */
-#define VM86_PLUS_INSTALL_CHECK 0
-#define VM86_ENTER 1
-#define VM86_ENTER_NO_BYPASS 2
-#define VM86_REQUEST_IRQ 3
-#define VM86_FREE_IRQ 4
-#define VM86_GET_IRQ_BITS 5
-#define VM86_GET_AND_RESET_IRQ 6
-
-/*
- * This is the stack-layout seen by the user space program when we have
- * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
- * is 'kernel_vm86_regs' (see below).
- */
-
-struct vm86_regs {
-/*
- * normal regs, with special meaning for the segment descriptors..
- */
- long ebx;
- long ecx;
- long edx;
- long esi;
- long edi;
- long ebp;
- long eax;
- long __null_ds;
- long __null_es;
- long __null_fs;
- long __null_gs;
- long orig_eax;
- long eip;
- unsigned short cs, __csh;
- long eflags;
- long esp;
- unsigned short ss, __ssh;
-/*
- * these are specific to v86 mode:
- */
- unsigned short es, __esh;
- unsigned short ds, __dsh;
- unsigned short fs, __fsh;
- unsigned short gs, __gsh;
-};
-
-struct revectored_struct {
- unsigned long __map[8]; /* 256 bits */
-};
-
-struct vm86_struct {
- struct vm86_regs regs;
- unsigned long flags;
- unsigned long screen_bitmap;
- unsigned long cpu_type;
- struct revectored_struct int_revectored;
- struct revectored_struct int21_revectored;
-};
-
-/*
- * flags masks
- */
-#define VM86_SCREEN_BITMAP 0x0001
-
-struct vm86plus_info_struct {
- unsigned long force_return_for_pic:1;
- unsigned long vm86dbg_active:1; /* for debugger */
- unsigned long vm86dbg_TFpendig:1; /* for debugger */
- unsigned long unused:28;
- unsigned long is_vm86pus:1; /* for vm86 internal use */
- unsigned char vm86dbg_intxxtab[32]; /* for debugger */
-};
-struct vm86plus_struct {
- struct vm86_regs regs;
- unsigned long flags;
- unsigned long screen_bitmap;
- unsigned long cpu_type;
- struct revectored_struct int_revectored;
- struct revectored_struct int21_revectored;
- struct vm86plus_info_struct vm86plus;
-};
-
-#ifdef __KERNEL__
-
#include <asm/ptrace.h>
+#include <uapi/asm/vm86.h>
/*
* This is the (kernel) stack-layout when we have done a "SAVE_ALL" from vm86
@@ -152,43 +28,48 @@ struct kernel_vm86_regs {
unsigned short gs, __gsh;
};
-struct kernel_vm86_struct {
- struct kernel_vm86_regs regs;
-/*
- * the below part remains on the kernel stack while we are in VM86 mode.
- * 'tss.esp0' then contains the address of VM86_TSS_ESP0 below, and when we
- * get forced back from VM86, the CPU and "SAVE_ALL" will restore the above
- * 'struct kernel_vm86_regs' with the then actual values.
- * Therefore, pt_regs in fact points to a complete 'kernel_vm86_struct'
- * in kernelspace, hence we need not reget the data from userspace.
- */
-#define VM86_TSS_ESP0 flags
+struct vm86 {
+ struct vm86plus_struct __user *user_vm86;
+ struct pt_regs regs32;
+ unsigned long veflags;
+ unsigned long veflags_mask;
+ unsigned long saved_sp0;
+
unsigned long flags;
- unsigned long screen_bitmap;
unsigned long cpu_type;
struct revectored_struct int_revectored;
struct revectored_struct int21_revectored;
struct vm86plus_info_struct vm86plus;
- struct pt_regs *regs32; /* here we save the pointer to the old regs */
-/*
- * The below is not part of the structure, but the stack layout continues
- * this way. In front of 'return-eip' may be some data, depending on
- * compilation, so we don't rely on this and save the pointer to 'oldregs'
- * in 'regs32' above.
- * However, with GCC-2.7.2 and the current CFLAGS you see exactly this:
-
- long return-eip; from call to vm86()
- struct pt_regs oldregs; user space registers as saved by syscall
- */
};
#ifdef CONFIG_VM86
void handle_vm86_fault(struct kernel_vm86_regs *, long);
int handle_vm86_trap(struct kernel_vm86_regs *, long, int);
-struct pt_regs *save_v86_state(struct kernel_vm86_regs *);
+void save_v86_state(struct kernel_vm86_regs *, int);
struct task_struct;
+
+#define free_vm86(t) do { \
+ struct thread_struct *__t = (t); \
+ if (__t->vm86 != NULL) { \
+ kfree(__t->vm86); \
+ __t->vm86 = NULL; \
+ } \
+} while (0)
+
+/*
+ * Support for VM86 programs to request interrupts for
+ * real mode hardware drivers:
+ */
+#define FIRST_VM86_IRQ 3
+#define LAST_VM86_IRQ 15
+
+static inline int invalid_vm86_irq(int irq)
+{
+ return irq < FIRST_VM86_IRQ || irq > LAST_VM86_IRQ;
+}
+
void release_vm86_irqs(struct task_struct *);
#else
@@ -201,8 +82,10 @@ static inline int handle_vm86_trap(struct kernel_vm86_regs *a, long b, int c)
return 0;
}
-#endif /* CONFIG_VM86 */
+static inline void save_v86_state(struct kernel_vm86_regs *a, int b) { }
-#endif /* __KERNEL__ */
+#define free_vm86(t) do { } while(0)
+
+#endif /* CONFIG_VM86 */
#endif /* _ASM_X86_VM86_H */
diff --git a/arch/x86/include/asm/vmalloc.h b/arch/x86/include/asm/vmalloc.h
new file mode 100644
index 000000000000..49ce331f3ac6
--- /dev/null
+++ b/arch/x86/include/asm/vmalloc.h
@@ -0,0 +1,26 @@
+#ifndef _ASM_X86_VMALLOC_H
+#define _ASM_X86_VMALLOC_H
+
+#include <asm/cpufeature.h>
+#include <asm/page.h>
+#include <asm/pgtable_areas.h>
+
+#ifdef CONFIG_HAVE_ARCH_HUGE_VMAP
+
+#ifdef CONFIG_X86_64
+#define arch_vmap_pud_supported arch_vmap_pud_supported
+static inline bool arch_vmap_pud_supported(pgprot_t prot)
+{
+ return boot_cpu_has(X86_FEATURE_GBPAGES);
+}
+#endif
+
+#define arch_vmap_pmd_supported arch_vmap_pmd_supported
+static inline bool arch_vmap_pmd_supported(pgprot_t prot)
+{
+ return boot_cpu_has(X86_FEATURE_PSE);
+}
+
+#endif
+
+#endif /* _ASM_X86_VMALLOC_H */
diff --git a/arch/x86/include/asm/vmware.h b/arch/x86/include/asm/vmware.h
new file mode 100644
index 000000000000..ac9fc51e2b18
--- /dev/null
+++ b/arch/x86/include/asm/vmware.h
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: GPL-2.0 or MIT */
+#ifndef _ASM_X86_VMWARE_H
+#define _ASM_X86_VMWARE_H
+
+#include <asm/cpufeatures.h>
+#include <asm/alternative.h>
+#include <linux/stringify.h>
+
+/*
+ * The hypercall definitions differ in the low word of the %edx argument
+ * in the following way: the old port base interface uses the port
+ * number to distinguish between high- and low bandwidth versions.
+ *
+ * The new vmcall interface instead uses a set of flags to select
+ * bandwidth mode and transfer direction. The flags should be loaded
+ * into %dx by any user and are automatically replaced by the port
+ * number if the VMWARE_HYPERVISOR_PORT method is used.
+ *
+ * In short, new driver code should strictly use the new definition of
+ * %dx content.
+ */
+
+/* Old port-based version */
+#define VMWARE_HYPERVISOR_PORT 0x5658
+#define VMWARE_HYPERVISOR_PORT_HB 0x5659
+
+/* Current vmcall / vmmcall version */
+#define VMWARE_HYPERVISOR_HB BIT(0)
+#define VMWARE_HYPERVISOR_OUT BIT(1)
+
+/* The low bandwidth call. The low word of edx is presumed clear. */
+#define VMWARE_HYPERCALL \
+ ALTERNATIVE_2("movw $" __stringify(VMWARE_HYPERVISOR_PORT) ", %%dx; " \
+ "inl (%%dx), %%eax", \
+ "vmcall", X86_FEATURE_VMCALL, \
+ "vmmcall", X86_FEATURE_VMW_VMMCALL)
+
+/*
+ * The high bandwidth out call. The low word of edx is presumed to have the
+ * HB and OUT bits set.
+ */
+#define VMWARE_HYPERCALL_HB_OUT \
+ ALTERNATIVE_2("movw $" __stringify(VMWARE_HYPERVISOR_PORT_HB) ", %%dx; " \
+ "rep outsb", \
+ "vmcall", X86_FEATURE_VMCALL, \
+ "vmmcall", X86_FEATURE_VMW_VMMCALL)
+
+/*
+ * The high bandwidth in call. The low word of edx is presumed to have the
+ * HB bit set.
+ */
+#define VMWARE_HYPERCALL_HB_IN \
+ ALTERNATIVE_2("movw $" __stringify(VMWARE_HYPERVISOR_PORT_HB) ", %%dx; " \
+ "rep insb", \
+ "vmcall", X86_FEATURE_VMCALL, \
+ "vmmcall", X86_FEATURE_VMW_VMMCALL)
+#endif
diff --git a/arch/x86/include/asm/vmx.h b/arch/x86/include/asm/vmx.h
index 84471b810460..498dc600bd5c 100644
--- a/arch/x86/include/asm/vmx.h
+++ b/arch/x86/include/asm/vmx.h
@@ -1,72 +1,96 @@
-#ifndef VMX_H
-#define VMX_H
-
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* vmx.h: VMX Architecture related definitions
* Copyright (c) 2004, Intel Corporation.
*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
- * Place - Suite 330, Boston, MA 02111-1307 USA.
- *
* A few random additions are:
* Copyright (C) 2006 Qumranet
* Avi Kivity <avi@qumranet.com>
* Yaniv Kamay <yaniv@qumranet.com>
- *
*/
+#ifndef VMX_H
+#define VMX_H
+
+#include <linux/bitops.h>
#include <linux/types.h>
+#include <uapi/asm/vmx.h>
+#include <asm/vmxfeatures.h>
+
+#define VMCS_CONTROL_BIT(x) BIT(VMX_FEATURE_##x & 0x1f)
/*
* Definitions of Primary Processor-Based VM-Execution Controls.
*/
-#define CPU_BASED_VIRTUAL_INTR_PENDING 0x00000004
-#define CPU_BASED_USE_TSC_OFFSETING 0x00000008
-#define CPU_BASED_HLT_EXITING 0x00000080
-#define CPU_BASED_INVLPG_EXITING 0x00000200
-#define CPU_BASED_MWAIT_EXITING 0x00000400
-#define CPU_BASED_RDPMC_EXITING 0x00000800
-#define CPU_BASED_RDTSC_EXITING 0x00001000
-#define CPU_BASED_CR3_LOAD_EXITING 0x00008000
-#define CPU_BASED_CR3_STORE_EXITING 0x00010000
-#define CPU_BASED_CR8_LOAD_EXITING 0x00080000
-#define CPU_BASED_CR8_STORE_EXITING 0x00100000
-#define CPU_BASED_TPR_SHADOW 0x00200000
-#define CPU_BASED_VIRTUAL_NMI_PENDING 0x00400000
-#define CPU_BASED_MOV_DR_EXITING 0x00800000
-#define CPU_BASED_UNCOND_IO_EXITING 0x01000000
-#define CPU_BASED_USE_IO_BITMAPS 0x02000000
-#define CPU_BASED_USE_MSR_BITMAPS 0x10000000
-#define CPU_BASED_MONITOR_EXITING 0x20000000
-#define CPU_BASED_PAUSE_EXITING 0x40000000
-#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS 0x80000000
+#define CPU_BASED_INTR_WINDOW_EXITING VMCS_CONTROL_BIT(INTR_WINDOW_EXITING)
+#define CPU_BASED_USE_TSC_OFFSETTING VMCS_CONTROL_BIT(USE_TSC_OFFSETTING)
+#define CPU_BASED_HLT_EXITING VMCS_CONTROL_BIT(HLT_EXITING)
+#define CPU_BASED_INVLPG_EXITING VMCS_CONTROL_BIT(INVLPG_EXITING)
+#define CPU_BASED_MWAIT_EXITING VMCS_CONTROL_BIT(MWAIT_EXITING)
+#define CPU_BASED_RDPMC_EXITING VMCS_CONTROL_BIT(RDPMC_EXITING)
+#define CPU_BASED_RDTSC_EXITING VMCS_CONTROL_BIT(RDTSC_EXITING)
+#define CPU_BASED_CR3_LOAD_EXITING VMCS_CONTROL_BIT(CR3_LOAD_EXITING)
+#define CPU_BASED_CR3_STORE_EXITING VMCS_CONTROL_BIT(CR3_STORE_EXITING)
+#define CPU_BASED_ACTIVATE_TERTIARY_CONTROLS VMCS_CONTROL_BIT(TERTIARY_CONTROLS)
+#define CPU_BASED_CR8_LOAD_EXITING VMCS_CONTROL_BIT(CR8_LOAD_EXITING)
+#define CPU_BASED_CR8_STORE_EXITING VMCS_CONTROL_BIT(CR8_STORE_EXITING)
+#define CPU_BASED_TPR_SHADOW VMCS_CONTROL_BIT(VIRTUAL_TPR)
+#define CPU_BASED_NMI_WINDOW_EXITING VMCS_CONTROL_BIT(NMI_WINDOW_EXITING)
+#define CPU_BASED_MOV_DR_EXITING VMCS_CONTROL_BIT(MOV_DR_EXITING)
+#define CPU_BASED_UNCOND_IO_EXITING VMCS_CONTROL_BIT(UNCOND_IO_EXITING)
+#define CPU_BASED_USE_IO_BITMAPS VMCS_CONTROL_BIT(USE_IO_BITMAPS)
+#define CPU_BASED_MONITOR_TRAP_FLAG VMCS_CONTROL_BIT(MONITOR_TRAP_FLAG)
+#define CPU_BASED_USE_MSR_BITMAPS VMCS_CONTROL_BIT(USE_MSR_BITMAPS)
+#define CPU_BASED_MONITOR_EXITING VMCS_CONTROL_BIT(MONITOR_EXITING)
+#define CPU_BASED_PAUSE_EXITING VMCS_CONTROL_BIT(PAUSE_EXITING)
+#define CPU_BASED_ACTIVATE_SECONDARY_CONTROLS VMCS_CONTROL_BIT(SEC_CONTROLS)
+
+#define CPU_BASED_ALWAYSON_WITHOUT_TRUE_MSR 0x0401e172
+
/*
* Definitions of Secondary Processor-Based VM-Execution Controls.
*/
-#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES 0x00000001
-#define SECONDARY_EXEC_ENABLE_EPT 0x00000002
-#define SECONDARY_EXEC_RDTSCP 0x00000008
-#define SECONDARY_EXEC_ENABLE_VPID 0x00000020
-#define SECONDARY_EXEC_WBINVD_EXITING 0x00000040
-#define SECONDARY_EXEC_UNRESTRICTED_GUEST 0x00000080
-#define SECONDARY_EXEC_PAUSE_LOOP_EXITING 0x00000400
+#define SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES VMCS_CONTROL_BIT(VIRT_APIC_ACCESSES)
+#define SECONDARY_EXEC_ENABLE_EPT VMCS_CONTROL_BIT(EPT)
+#define SECONDARY_EXEC_DESC VMCS_CONTROL_BIT(DESC_EXITING)
+#define SECONDARY_EXEC_ENABLE_RDTSCP VMCS_CONTROL_BIT(RDTSCP)
+#define SECONDARY_EXEC_VIRTUALIZE_X2APIC_MODE VMCS_CONTROL_BIT(VIRTUAL_X2APIC)
+#define SECONDARY_EXEC_ENABLE_VPID VMCS_CONTROL_BIT(VPID)
+#define SECONDARY_EXEC_WBINVD_EXITING VMCS_CONTROL_BIT(WBINVD_EXITING)
+#define SECONDARY_EXEC_UNRESTRICTED_GUEST VMCS_CONTROL_BIT(UNRESTRICTED_GUEST)
+#define SECONDARY_EXEC_APIC_REGISTER_VIRT VMCS_CONTROL_BIT(APIC_REGISTER_VIRT)
+#define SECONDARY_EXEC_VIRTUAL_INTR_DELIVERY VMCS_CONTROL_BIT(VIRT_INTR_DELIVERY)
+#define SECONDARY_EXEC_PAUSE_LOOP_EXITING VMCS_CONTROL_BIT(PAUSE_LOOP_EXITING)
+#define SECONDARY_EXEC_RDRAND_EXITING VMCS_CONTROL_BIT(RDRAND_EXITING)
+#define SECONDARY_EXEC_ENABLE_INVPCID VMCS_CONTROL_BIT(INVPCID)
+#define SECONDARY_EXEC_ENABLE_VMFUNC VMCS_CONTROL_BIT(VMFUNC)
+#define SECONDARY_EXEC_SHADOW_VMCS VMCS_CONTROL_BIT(SHADOW_VMCS)
+#define SECONDARY_EXEC_ENCLS_EXITING VMCS_CONTROL_BIT(ENCLS_EXITING)
+#define SECONDARY_EXEC_RDSEED_EXITING VMCS_CONTROL_BIT(RDSEED_EXITING)
+#define SECONDARY_EXEC_ENABLE_PML VMCS_CONTROL_BIT(PAGE_MOD_LOGGING)
+#define SECONDARY_EXEC_PT_CONCEAL_VMX VMCS_CONTROL_BIT(PT_CONCEAL_VMX)
+#define SECONDARY_EXEC_XSAVES VMCS_CONTROL_BIT(XSAVES)
+#define SECONDARY_EXEC_MODE_BASED_EPT_EXEC VMCS_CONTROL_BIT(MODE_BASED_EPT_EXEC)
+#define SECONDARY_EXEC_PT_USE_GPA VMCS_CONTROL_BIT(PT_USE_GPA)
+#define SECONDARY_EXEC_TSC_SCALING VMCS_CONTROL_BIT(TSC_SCALING)
+#define SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE VMCS_CONTROL_BIT(USR_WAIT_PAUSE)
+#define SECONDARY_EXEC_BUS_LOCK_DETECTION VMCS_CONTROL_BIT(BUS_LOCK_DETECTION)
+#define SECONDARY_EXEC_NOTIFY_VM_EXITING VMCS_CONTROL_BIT(NOTIFY_VM_EXITING)
+/*
+ * Definitions of Tertiary Processor-Based VM-Execution Controls.
+ */
+#define TERTIARY_EXEC_IPI_VIRT VMCS_CONTROL_BIT(IPI_VIRT)
+
+#define PIN_BASED_EXT_INTR_MASK VMCS_CONTROL_BIT(INTR_EXITING)
+#define PIN_BASED_NMI_EXITING VMCS_CONTROL_BIT(NMI_EXITING)
+#define PIN_BASED_VIRTUAL_NMIS VMCS_CONTROL_BIT(VIRTUAL_NMIS)
+#define PIN_BASED_VMX_PREEMPTION_TIMER VMCS_CONTROL_BIT(PREEMPTION_TIMER)
+#define PIN_BASED_POSTED_INTR VMCS_CONTROL_BIT(POSTED_INTR)
-#define PIN_BASED_EXT_INTR_MASK 0x00000001
-#define PIN_BASED_NMI_EXITING 0x00000008
-#define PIN_BASED_VIRTUAL_NMIS 0x00000020
+#define PIN_BASED_ALWAYSON_WITHOUT_TRUE_MSR 0x00000016
-#define VM_EXIT_SAVE_DEBUG_CONTROLS 0x00000002
+#define VM_EXIT_SAVE_DEBUG_CONTROLS 0x00000004
#define VM_EXIT_HOST_ADDR_SPACE_SIZE 0x00000200
#define VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL 0x00001000
#define VM_EXIT_ACK_INTR_ON_EXIT 0x00008000
@@ -75,18 +99,73 @@
#define VM_EXIT_SAVE_IA32_EFER 0x00100000
#define VM_EXIT_LOAD_IA32_EFER 0x00200000
#define VM_EXIT_SAVE_VMX_PREEMPTION_TIMER 0x00400000
+#define VM_EXIT_CLEAR_BNDCFGS 0x00800000
+#define VM_EXIT_PT_CONCEAL_PIP 0x01000000
+#define VM_EXIT_CLEAR_IA32_RTIT_CTL 0x02000000
-#define VM_ENTRY_LOAD_DEBUG_CONTROLS 0x00000002
+#define VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR 0x00036dff
+
+#define VM_ENTRY_LOAD_DEBUG_CONTROLS 0x00000004
#define VM_ENTRY_IA32E_MODE 0x00000200
#define VM_ENTRY_SMM 0x00000400
#define VM_ENTRY_DEACT_DUAL_MONITOR 0x00000800
#define VM_ENTRY_LOAD_IA32_PERF_GLOBAL_CTRL 0x00002000
#define VM_ENTRY_LOAD_IA32_PAT 0x00004000
#define VM_ENTRY_LOAD_IA32_EFER 0x00008000
+#define VM_ENTRY_LOAD_BNDCFGS 0x00010000
+#define VM_ENTRY_PT_CONCEAL_PIP 0x00020000
+#define VM_ENTRY_LOAD_IA32_RTIT_CTL 0x00040000
+
+#define VM_ENTRY_ALWAYSON_WITHOUT_TRUE_MSR 0x000011ff
+
+#define VMX_MISC_PREEMPTION_TIMER_RATE_MASK 0x0000001f
+#define VMX_MISC_SAVE_EFER_LMA 0x00000020
+#define VMX_MISC_ACTIVITY_HLT 0x00000040
+#define VMX_MISC_ACTIVITY_WAIT_SIPI 0x00000100
+#define VMX_MISC_ZERO_LEN_INS 0x40000000
+#define VMX_MISC_MSR_LIST_MULTIPLIER 512
+
+/* VMFUNC functions */
+#define VMFUNC_CONTROL_BIT(x) BIT((VMX_FEATURE_##x & 0x1f) - 28)
+
+#define VMX_VMFUNC_EPTP_SWITCHING VMFUNC_CONTROL_BIT(EPTP_SWITCHING)
+#define VMFUNC_EPTP_ENTRIES 512
+
+static inline u32 vmx_basic_vmcs_revision_id(u64 vmx_basic)
+{
+ return vmx_basic & GENMASK_ULL(30, 0);
+}
+
+static inline u32 vmx_basic_vmcs_size(u64 vmx_basic)
+{
+ return (vmx_basic & GENMASK_ULL(44, 32)) >> 32;
+}
+
+static inline int vmx_misc_preemption_timer_rate(u64 vmx_misc)
+{
+ return vmx_misc & VMX_MISC_PREEMPTION_TIMER_RATE_MASK;
+}
+
+static inline int vmx_misc_cr3_count(u64 vmx_misc)
+{
+ return (vmx_misc & GENMASK_ULL(24, 16)) >> 16;
+}
+
+static inline int vmx_misc_max_msr(u64 vmx_misc)
+{
+ return (vmx_misc & GENMASK_ULL(27, 25)) >> 25;
+}
+
+static inline int vmx_misc_mseg_revid(u64 vmx_misc)
+{
+ return (vmx_misc & GENMASK_ULL(63, 32)) >> 32;
+}
/* VMCS Encodings */
enum vmcs_field {
VIRTUAL_PROCESSOR_ID = 0x00000000,
+ POSTED_INTR_NV = 0x00000002,
+ LAST_PID_POINTER_INDEX = 0x00000008,
GUEST_ES_SELECTOR = 0x00000800,
GUEST_CS_SELECTOR = 0x00000802,
GUEST_SS_SELECTOR = 0x00000804,
@@ -95,6 +174,8 @@ enum vmcs_field {
GUEST_GS_SELECTOR = 0x0000080a,
GUEST_LDTR_SELECTOR = 0x0000080c,
GUEST_TR_SELECTOR = 0x0000080e,
+ GUEST_INTR_STATUS = 0x00000810,
+ GUEST_PML_INDEX = 0x00000812,
HOST_ES_SELECTOR = 0x00000c00,
HOST_CS_SELECTOR = 0x00000c02,
HOST_SS_SELECTOR = 0x00000c04,
@@ -114,14 +195,44 @@ enum vmcs_field {
VM_EXIT_MSR_LOAD_ADDR_HIGH = 0x00002009,
VM_ENTRY_MSR_LOAD_ADDR = 0x0000200a,
VM_ENTRY_MSR_LOAD_ADDR_HIGH = 0x0000200b,
+ PML_ADDRESS = 0x0000200e,
+ PML_ADDRESS_HIGH = 0x0000200f,
TSC_OFFSET = 0x00002010,
TSC_OFFSET_HIGH = 0x00002011,
VIRTUAL_APIC_PAGE_ADDR = 0x00002012,
VIRTUAL_APIC_PAGE_ADDR_HIGH = 0x00002013,
APIC_ACCESS_ADDR = 0x00002014,
APIC_ACCESS_ADDR_HIGH = 0x00002015,
+ POSTED_INTR_DESC_ADDR = 0x00002016,
+ POSTED_INTR_DESC_ADDR_HIGH = 0x00002017,
+ VM_FUNCTION_CONTROL = 0x00002018,
+ VM_FUNCTION_CONTROL_HIGH = 0x00002019,
EPT_POINTER = 0x0000201a,
EPT_POINTER_HIGH = 0x0000201b,
+ EOI_EXIT_BITMAP0 = 0x0000201c,
+ EOI_EXIT_BITMAP0_HIGH = 0x0000201d,
+ EOI_EXIT_BITMAP1 = 0x0000201e,
+ EOI_EXIT_BITMAP1_HIGH = 0x0000201f,
+ EOI_EXIT_BITMAP2 = 0x00002020,
+ EOI_EXIT_BITMAP2_HIGH = 0x00002021,
+ EOI_EXIT_BITMAP3 = 0x00002022,
+ EOI_EXIT_BITMAP3_HIGH = 0x00002023,
+ EPTP_LIST_ADDRESS = 0x00002024,
+ EPTP_LIST_ADDRESS_HIGH = 0x00002025,
+ VMREAD_BITMAP = 0x00002026,
+ VMREAD_BITMAP_HIGH = 0x00002027,
+ VMWRITE_BITMAP = 0x00002028,
+ VMWRITE_BITMAP_HIGH = 0x00002029,
+ XSS_EXIT_BITMAP = 0x0000202C,
+ XSS_EXIT_BITMAP_HIGH = 0x0000202D,
+ ENCLS_EXITING_BITMAP = 0x0000202E,
+ ENCLS_EXITING_BITMAP_HIGH = 0x0000202F,
+ TSC_MULTIPLIER = 0x00002032,
+ TSC_MULTIPLIER_HIGH = 0x00002033,
+ TERTIARY_VM_EXEC_CONTROL = 0x00002034,
+ TERTIARY_VM_EXEC_CONTROL_HIGH = 0x00002035,
+ PID_POINTER_TABLE = 0x00002042,
+ PID_POINTER_TABLE_HIGH = 0x00002043,
GUEST_PHYSICAL_ADDRESS = 0x00002400,
GUEST_PHYSICAL_ADDRESS_HIGH = 0x00002401,
VMCS_LINK_POINTER = 0x00002800,
@@ -132,6 +243,8 @@ enum vmcs_field {
GUEST_IA32_PAT_HIGH = 0x00002805,
GUEST_IA32_EFER = 0x00002806,
GUEST_IA32_EFER_HIGH = 0x00002807,
+ GUEST_IA32_PERF_GLOBAL_CTRL = 0x00002808,
+ GUEST_IA32_PERF_GLOBAL_CTRL_HIGH= 0x00002809,
GUEST_PDPTR0 = 0x0000280a,
GUEST_PDPTR0_HIGH = 0x0000280b,
GUEST_PDPTR1 = 0x0000280c,
@@ -140,10 +253,16 @@ enum vmcs_field {
GUEST_PDPTR2_HIGH = 0x0000280f,
GUEST_PDPTR3 = 0x00002810,
GUEST_PDPTR3_HIGH = 0x00002811,
+ GUEST_BNDCFGS = 0x00002812,
+ GUEST_BNDCFGS_HIGH = 0x00002813,
+ GUEST_IA32_RTIT_CTL = 0x00002814,
+ GUEST_IA32_RTIT_CTL_HIGH = 0x00002815,
HOST_IA32_PAT = 0x00002c00,
HOST_IA32_PAT_HIGH = 0x00002c01,
HOST_IA32_EFER = 0x00002c02,
HOST_IA32_EFER_HIGH = 0x00002c03,
+ HOST_IA32_PERF_GLOBAL_CTRL = 0x00002c04,
+ HOST_IA32_PERF_GLOBAL_CTRL_HIGH = 0x00002c05,
PIN_BASED_VM_EXEC_CONTROL = 0x00004000,
CPU_BASED_VM_EXEC_CONTROL = 0x00004002,
EXCEPTION_BITMAP = 0x00004004,
@@ -162,6 +281,7 @@ enum vmcs_field {
SECONDARY_VM_EXEC_CONTROL = 0x0000401e,
PLE_GAP = 0x00004020,
PLE_WINDOW = 0x00004022,
+ NOTIFY_WINDOW = 0x00004024,
VM_INSTRUCTION_ERROR = 0x00004400,
VM_EXIT_REASON = 0x00004402,
VM_EXIT_INTR_INFO = 0x00004404,
@@ -189,8 +309,9 @@ enum vmcs_field {
GUEST_LDTR_AR_BYTES = 0x00004820,
GUEST_TR_AR_BYTES = 0x00004822,
GUEST_INTERRUPTIBILITY_INFO = 0x00004824,
- GUEST_ACTIVITY_STATE = 0X00004826,
+ GUEST_ACTIVITY_STATE = 0x00004826,
GUEST_SYSENTER_CS = 0x0000482A,
+ VMX_PREEMPTION_TIMER_VALUE = 0x0000482E,
HOST_IA32_SYSENTER_CS = 0x00004c00,
CR0_GUEST_HOST_MASK = 0x00006000,
CR4_GUEST_HOST_MASK = 0x00006002,
@@ -236,48 +357,6 @@ enum vmcs_field {
HOST_RIP = 0x00006c16,
};
-#define VMX_EXIT_REASONS_FAILED_VMENTRY 0x80000000
-
-#define EXIT_REASON_EXCEPTION_NMI 0
-#define EXIT_REASON_EXTERNAL_INTERRUPT 1
-#define EXIT_REASON_TRIPLE_FAULT 2
-
-#define EXIT_REASON_PENDING_INTERRUPT 7
-#define EXIT_REASON_NMI_WINDOW 8
-#define EXIT_REASON_TASK_SWITCH 9
-#define EXIT_REASON_CPUID 10
-#define EXIT_REASON_HLT 12
-#define EXIT_REASON_INVD 13
-#define EXIT_REASON_INVLPG 14
-#define EXIT_REASON_RDPMC 15
-#define EXIT_REASON_RDTSC 16
-#define EXIT_REASON_VMCALL 18
-#define EXIT_REASON_VMCLEAR 19
-#define EXIT_REASON_VMLAUNCH 20
-#define EXIT_REASON_VMPTRLD 21
-#define EXIT_REASON_VMPTRST 22
-#define EXIT_REASON_VMREAD 23
-#define EXIT_REASON_VMRESUME 24
-#define EXIT_REASON_VMWRITE 25
-#define EXIT_REASON_VMOFF 26
-#define EXIT_REASON_VMON 27
-#define EXIT_REASON_CR_ACCESS 28
-#define EXIT_REASON_DR_ACCESS 29
-#define EXIT_REASON_IO_INSTRUCTION 30
-#define EXIT_REASON_MSR_READ 31
-#define EXIT_REASON_MSR_WRITE 32
-#define EXIT_REASON_INVALID_STATE 33
-#define EXIT_REASON_MWAIT_INSTRUCTION 36
-#define EXIT_REASON_MONITOR_INSTRUCTION 39
-#define EXIT_REASON_PAUSE_INSTRUCTION 40
-#define EXIT_REASON_MCE_DURING_VMENTRY 41
-#define EXIT_REASON_TPR_BELOW_THRESHOLD 43
-#define EXIT_REASON_APIC_ACCESS 44
-#define EXIT_REASON_EPT_VIOLATION 48
-#define EXIT_REASON_EPT_MISCONFIG 49
-#define EXIT_REASON_WBINVD 54
-#define EXIT_REASON_XSETBV 55
-
/*
* Interruption-information format
*/
@@ -294,16 +373,20 @@ enum vmcs_field {
#define VECTORING_INFO_VALID_MASK INTR_INFO_VALID_MASK
#define INTR_TYPE_EXT_INTR (0 << 8) /* external interrupt */
+#define INTR_TYPE_RESERVED (1 << 8) /* reserved */
#define INTR_TYPE_NMI_INTR (2 << 8) /* NMI */
#define INTR_TYPE_HARD_EXCEPTION (3 << 8) /* processor exception */
#define INTR_TYPE_SOFT_INTR (4 << 8) /* software interrupt */
+#define INTR_TYPE_PRIV_SW_EXCEPTION (5 << 8) /* ICE breakpoint - undocumented */
#define INTR_TYPE_SOFT_EXCEPTION (6 << 8) /* software exception */
+#define INTR_TYPE_OTHER_EVENT (7 << 8) /* other event */
/* GUEST_INTERRUPTIBILITY_INFO flags. */
#define GUEST_INTR_STATE_STI 0x00000001
#define GUEST_INTR_STATE_MOV_SS 0x00000002
#define GUEST_INTR_STATE_SMI 0x00000004
#define GUEST_INTR_STATE_NMI 0x00000008
+#define GUEST_INTR_STATE_ENCLAVE_INTR 0x00000010
/* GUEST_ACTIVITY_STATE flags */
#define GUEST_ACTIVITY_ACTIVE 0
@@ -346,79 +429,110 @@ enum vmcs_field {
#define DEBUG_REG_ACCESS_REG(eq) (((eq) >> 8) & 0xf) /* 11:8, general purpose reg. */
-/* segment AR */
-#define SEGMENT_AR_L_MASK (1 << 13)
-
-#define AR_TYPE_ACCESSES_MASK 1
-#define AR_TYPE_READABLE_MASK (1 << 1)
-#define AR_TYPE_WRITEABLE_MASK (1 << 2)
-#define AR_TYPE_CODE_MASK (1 << 3)
-#define AR_TYPE_MASK 0x0f
-#define AR_TYPE_BUSY_64_TSS 11
-#define AR_TYPE_BUSY_32_TSS 11
-#define AR_TYPE_BUSY_16_TSS 3
-#define AR_TYPE_LDT 2
-
-#define AR_UNUSABLE_MASK (1 << 16)
-#define AR_S_MASK (1 << 4)
-#define AR_P_MASK (1 << 7)
-#define AR_L_MASK (1 << 13)
-#define AR_DB_MASK (1 << 14)
-#define AR_G_MASK (1 << 15)
-#define AR_DPL_SHIFT 5
-#define AR_DPL(ar) (((ar) >> AR_DPL_SHIFT) & 3)
-
-#define AR_RESERVD_MASK 0xfffe0f00
-
-#define TSS_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 0)
-#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 1)
-#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT (KVM_MEMORY_SLOTS + 2)
+/*
+ * Exit Qualifications for APIC-Access
+ */
+#define APIC_ACCESS_OFFSET 0xfff /* 11:0, offset within the APIC page */
+#define APIC_ACCESS_TYPE 0xf000 /* 15:12, access type */
+#define TYPE_LINEAR_APIC_INST_READ (0 << 12)
+#define TYPE_LINEAR_APIC_INST_WRITE (1 << 12)
+#define TYPE_LINEAR_APIC_INST_FETCH (2 << 12)
+#define TYPE_LINEAR_APIC_EVENT (3 << 12)
+#define TYPE_PHYSICAL_APIC_EVENT (10 << 12)
+#define TYPE_PHYSICAL_APIC_INST (15 << 12)
+
+/* segment AR in VMCS -- these are different from what LAR reports */
+#define VMX_SEGMENT_AR_L_MASK (1 << 13)
+
+#define VMX_AR_TYPE_ACCESSES_MASK 1
+#define VMX_AR_TYPE_READABLE_MASK (1 << 1)
+#define VMX_AR_TYPE_WRITEABLE_MASK (1 << 2)
+#define VMX_AR_TYPE_CODE_MASK (1 << 3)
+#define VMX_AR_TYPE_MASK 0x0f
+#define VMX_AR_TYPE_BUSY_64_TSS 11
+#define VMX_AR_TYPE_BUSY_32_TSS 11
+#define VMX_AR_TYPE_BUSY_16_TSS 3
+#define VMX_AR_TYPE_LDT 2
+
+#define VMX_AR_UNUSABLE_MASK (1 << 16)
+#define VMX_AR_S_MASK (1 << 4)
+#define VMX_AR_P_MASK (1 << 7)
+#define VMX_AR_L_MASK (1 << 13)
+#define VMX_AR_DB_MASK (1 << 14)
+#define VMX_AR_G_MASK (1 << 15)
+#define VMX_AR_DPL_SHIFT 5
+#define VMX_AR_DPL(ar) (((ar) >> VMX_AR_DPL_SHIFT) & 3)
+
+#define VMX_AR_RESERVD_MASK 0xfffe0f00
+
+#define TSS_PRIVATE_MEMSLOT (KVM_USER_MEM_SLOTS + 0)
+#define APIC_ACCESS_PAGE_PRIVATE_MEMSLOT (KVM_USER_MEM_SLOTS + 1)
+#define IDENTITY_PAGETABLE_PRIVATE_MEMSLOT (KVM_USER_MEM_SLOTS + 2)
#define VMX_NR_VPIDS (1 << 16)
+#define VMX_VPID_EXTENT_INDIVIDUAL_ADDR 0
#define VMX_VPID_EXTENT_SINGLE_CONTEXT 1
#define VMX_VPID_EXTENT_ALL_CONTEXT 2
+#define VMX_VPID_EXTENT_SINGLE_NON_GLOBAL 3
-#define VMX_EPT_EXTENT_INDIVIDUAL_ADDR 0
#define VMX_EPT_EXTENT_CONTEXT 1
#define VMX_EPT_EXTENT_GLOBAL 2
+#define VMX_EPT_EXTENT_SHIFT 24
#define VMX_EPT_EXECUTE_ONLY_BIT (1ull)
#define VMX_EPT_PAGE_WALK_4_BIT (1ull << 6)
+#define VMX_EPT_PAGE_WALK_5_BIT (1ull << 7)
#define VMX_EPTP_UC_BIT (1ull << 8)
#define VMX_EPTP_WB_BIT (1ull << 14)
#define VMX_EPT_2MB_PAGE_BIT (1ull << 16)
#define VMX_EPT_1GB_PAGE_BIT (1ull << 17)
-#define VMX_EPT_EXTENT_INDIVIDUAL_BIT (1ull << 24)
+#define VMX_EPT_INVEPT_BIT (1ull << 20)
+#define VMX_EPT_AD_BIT (1ull << 21)
#define VMX_EPT_EXTENT_CONTEXT_BIT (1ull << 25)
#define VMX_EPT_EXTENT_GLOBAL_BIT (1ull << 26)
+#define VMX_VPID_INVVPID_BIT (1ull << 0) /* (32 - 32) */
+#define VMX_VPID_EXTENT_INDIVIDUAL_ADDR_BIT (1ull << 8) /* (40 - 32) */
#define VMX_VPID_EXTENT_SINGLE_CONTEXT_BIT (1ull << 9) /* (41 - 32) */
#define VMX_VPID_EXTENT_GLOBAL_CONTEXT_BIT (1ull << 10) /* (42 - 32) */
+#define VMX_VPID_EXTENT_SINGLE_NON_GLOBAL_BIT (1ull << 11) /* (43 - 32) */
-#define VMX_EPT_DEFAULT_GAW 3
-#define VMX_EPT_MAX_GAW 0x4
#define VMX_EPT_MT_EPTE_SHIFT 3
-#define VMX_EPT_GAW_EPTP_SHIFT 3
-#define VMX_EPT_DEFAULT_MT 0x6ull
+#define VMX_EPTP_PWL_MASK 0x38ull
+#define VMX_EPTP_PWL_4 0x18ull
+#define VMX_EPTP_PWL_5 0x20ull
+#define VMX_EPTP_AD_ENABLE_BIT (1ull << 6)
+#define VMX_EPTP_MT_MASK 0x7ull
+#define VMX_EPTP_MT_WB 0x6ull
+#define VMX_EPTP_MT_UC 0x0ull
#define VMX_EPT_READABLE_MASK 0x1ull
#define VMX_EPT_WRITABLE_MASK 0x2ull
#define VMX_EPT_EXECUTABLE_MASK 0x4ull
#define VMX_EPT_IPAT_BIT (1ull << 6)
+#define VMX_EPT_ACCESS_BIT (1ull << 8)
+#define VMX_EPT_DIRTY_BIT (1ull << 9)
+#define VMX_EPT_RWX_MASK (VMX_EPT_READABLE_MASK | \
+ VMX_EPT_WRITABLE_MASK | \
+ VMX_EPT_EXECUTABLE_MASK)
+#define VMX_EPT_MT_MASK (7ull << VMX_EPT_MT_EPTE_SHIFT)
-#define VMX_EPT_IDENTITY_PAGETABLE_ADDR 0xfffbc000ul
+static inline u8 vmx_eptp_page_walk_level(u64 eptp)
+{
+ u64 encoded_level = eptp & VMX_EPTP_PWL_MASK;
+
+ if (encoded_level == VMX_EPTP_PWL_5)
+ return 5;
+
+ /* @eptp must be pre-validated by the caller. */
+ WARN_ON_ONCE(encoded_level != VMX_EPTP_PWL_4);
+ return 4;
+}
+/* The mask to use to trigger an EPT Misconfiguration in order to track MMIO */
+#define VMX_EPT_MISCONFIG_WX_VALUE (VMX_EPT_WRITABLE_MASK | \
+ VMX_EPT_EXECUTABLE_MASK)
-#define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30"
-#define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2"
-#define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3"
-#define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30"
-#define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0"
-#define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0"
-#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
-#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
-#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
-#define ASM_VMX_INVEPT ".byte 0x66, 0x0f, 0x38, 0x80, 0x08"
-#define ASM_VMX_INVVPID ".byte 0x66, 0x0f, 0x38, 0x81, 0x08"
+#define VMX_EPT_IDENTITY_PAGETABLE_ADDR 0xfffbc000ul
struct vmx_msr_entry {
u32 index;
@@ -426,4 +540,91 @@ struct vmx_msr_entry {
u64 value;
} __aligned(16);
+/*
+ * Exit Qualifications for entry failure during or after loading guest state
+ */
+enum vm_entry_failure_code {
+ ENTRY_FAIL_DEFAULT = 0,
+ ENTRY_FAIL_PDPTE = 2,
+ ENTRY_FAIL_NMI = 3,
+ ENTRY_FAIL_VMCS_LINK_PTR = 4,
+};
+
+/*
+ * Exit Qualifications for EPT Violations
+ */
+#define EPT_VIOLATION_ACC_READ_BIT 0
+#define EPT_VIOLATION_ACC_WRITE_BIT 1
+#define EPT_VIOLATION_ACC_INSTR_BIT 2
+#define EPT_VIOLATION_RWX_SHIFT 3
+#define EPT_VIOLATION_GVA_IS_VALID_BIT 7
+#define EPT_VIOLATION_GVA_TRANSLATED_BIT 8
+#define EPT_VIOLATION_ACC_READ (1 << EPT_VIOLATION_ACC_READ_BIT)
+#define EPT_VIOLATION_ACC_WRITE (1 << EPT_VIOLATION_ACC_WRITE_BIT)
+#define EPT_VIOLATION_ACC_INSTR (1 << EPT_VIOLATION_ACC_INSTR_BIT)
+#define EPT_VIOLATION_RWX_MASK (VMX_EPT_RWX_MASK << EPT_VIOLATION_RWX_SHIFT)
+#define EPT_VIOLATION_GVA_IS_VALID (1 << EPT_VIOLATION_GVA_IS_VALID_BIT)
+#define EPT_VIOLATION_GVA_TRANSLATED (1 << EPT_VIOLATION_GVA_TRANSLATED_BIT)
+
+/*
+ * Exit Qualifications for NOTIFY VM EXIT
+ */
+#define NOTIFY_VM_CONTEXT_INVALID BIT(0)
+
+/*
+ * VM-instruction error numbers
+ */
+enum vm_instruction_error_number {
+ VMXERR_VMCALL_IN_VMX_ROOT_OPERATION = 1,
+ VMXERR_VMCLEAR_INVALID_ADDRESS = 2,
+ VMXERR_VMCLEAR_VMXON_POINTER = 3,
+ VMXERR_VMLAUNCH_NONCLEAR_VMCS = 4,
+ VMXERR_VMRESUME_NONLAUNCHED_VMCS = 5,
+ VMXERR_VMRESUME_AFTER_VMXOFF = 6,
+ VMXERR_ENTRY_INVALID_CONTROL_FIELD = 7,
+ VMXERR_ENTRY_INVALID_HOST_STATE_FIELD = 8,
+ VMXERR_VMPTRLD_INVALID_ADDRESS = 9,
+ VMXERR_VMPTRLD_VMXON_POINTER = 10,
+ VMXERR_VMPTRLD_INCORRECT_VMCS_REVISION_ID = 11,
+ VMXERR_UNSUPPORTED_VMCS_COMPONENT = 12,
+ VMXERR_VMWRITE_READ_ONLY_VMCS_COMPONENT = 13,
+ VMXERR_VMXON_IN_VMX_ROOT_OPERATION = 15,
+ VMXERR_ENTRY_INVALID_EXECUTIVE_VMCS_POINTER = 16,
+ VMXERR_ENTRY_NONLAUNCHED_EXECUTIVE_VMCS = 17,
+ VMXERR_ENTRY_EXECUTIVE_VMCS_POINTER_NOT_VMXON_POINTER = 18,
+ VMXERR_VMCALL_NONCLEAR_VMCS = 19,
+ VMXERR_VMCALL_INVALID_VM_EXIT_CONTROL_FIELDS = 20,
+ VMXERR_VMCALL_INCORRECT_MSEG_REVISION_ID = 22,
+ VMXERR_VMXOFF_UNDER_DUAL_MONITOR_TREATMENT_OF_SMIS_AND_SMM = 23,
+ VMXERR_VMCALL_INVALID_SMM_MONITOR_FEATURES = 24,
+ VMXERR_ENTRY_INVALID_VM_EXECUTION_CONTROL_FIELDS_IN_EXECUTIVE_VMCS = 25,
+ VMXERR_ENTRY_EVENTS_BLOCKED_BY_MOV_SS = 26,
+ VMXERR_INVALID_OPERAND_TO_INVEPT_INVVPID = 28,
+};
+
+/*
+ * VM-instruction errors that can be encountered on VM-Enter, used to trace
+ * nested VM-Enter failures reported by hardware. Errors unique to VM-Enter
+ * from a SMI Transfer Monitor are not included as things have gone seriously
+ * sideways if we get one of those...
+ */
+#define VMX_VMENTER_INSTRUCTION_ERRORS \
+ { VMXERR_VMLAUNCH_NONCLEAR_VMCS, "VMLAUNCH_NONCLEAR_VMCS" }, \
+ { VMXERR_VMRESUME_NONLAUNCHED_VMCS, "VMRESUME_NONLAUNCHED_VMCS" }, \
+ { VMXERR_VMRESUME_AFTER_VMXOFF, "VMRESUME_AFTER_VMXOFF" }, \
+ { VMXERR_ENTRY_INVALID_CONTROL_FIELD, "VMENTRY_INVALID_CONTROL_FIELD" }, \
+ { VMXERR_ENTRY_INVALID_HOST_STATE_FIELD, "VMENTRY_INVALID_HOST_STATE_FIELD" }, \
+ { VMXERR_ENTRY_EVENTS_BLOCKED_BY_MOV_SS, "VMENTRY_EVENTS_BLOCKED_BY_MOV_SS" }
+
+enum vmx_l1d_flush_state {
+ VMENTER_L1D_FLUSH_AUTO,
+ VMENTER_L1D_FLUSH_NEVER,
+ VMENTER_L1D_FLUSH_COND,
+ VMENTER_L1D_FLUSH_ALWAYS,
+ VMENTER_L1D_FLUSH_EPT_DISABLED,
+ VMENTER_L1D_FLUSH_NOT_REQUIRED,
+};
+
+extern enum vmx_l1d_flush_state l1tf_vmx_mitigation;
+
#endif
diff --git a/arch/x86/include/asm/vmxfeatures.h b/arch/x86/include/asm/vmxfeatures.h
new file mode 100644
index 000000000000..c6a7eed03914
--- /dev/null
+++ b/arch/x86/include/asm/vmxfeatures.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_VMXFEATURES_H
+#define _ASM_X86_VMXFEATURES_H
+
+/*
+ * Defines VMX CPU feature bits
+ */
+#define NVMXINTS 5 /* N 32-bit words worth of info */
+
+/*
+ * Note: If the comment begins with a quoted string, that string is used
+ * in /proc/cpuinfo instead of the macro name. If the string is "",
+ * this feature bit is not displayed in /proc/cpuinfo at all.
+ */
+
+/* Pin-Based VM-Execution Controls, EPT/VPID, APIC and VM-Functions, word 0 */
+#define VMX_FEATURE_INTR_EXITING ( 0*32+ 0) /* "" VM-Exit on vectored interrupts */
+#define VMX_FEATURE_NMI_EXITING ( 0*32+ 3) /* "" VM-Exit on NMIs */
+#define VMX_FEATURE_VIRTUAL_NMIS ( 0*32+ 5) /* "vnmi" NMI virtualization */
+#define VMX_FEATURE_PREEMPTION_TIMER ( 0*32+ 6) /* VMX Preemption Timer */
+#define VMX_FEATURE_POSTED_INTR ( 0*32+ 7) /* Posted Interrupts */
+
+/* EPT/VPID features, scattered to bits 16-23 */
+#define VMX_FEATURE_INVVPID ( 0*32+ 16) /* INVVPID is supported */
+#define VMX_FEATURE_EPT_EXECUTE_ONLY ( 0*32+ 17) /* "ept_x_only" EPT entries can be execute only */
+#define VMX_FEATURE_EPT_AD ( 0*32+ 18) /* EPT Accessed/Dirty bits */
+#define VMX_FEATURE_EPT_1GB ( 0*32+ 19) /* 1GB EPT pages */
+
+/* Aggregated APIC features 24-27 */
+#define VMX_FEATURE_FLEXPRIORITY ( 0*32+ 24) /* TPR shadow + virt APIC */
+#define VMX_FEATURE_APICV ( 0*32+ 25) /* TPR shadow + APIC reg virt + virt intr delivery + posted interrupts */
+
+/* VM-Functions, shifted to bits 28-31 */
+#define VMX_FEATURE_EPTP_SWITCHING ( 0*32+ 28) /* EPTP switching (in guest) */
+
+/* Primary Processor-Based VM-Execution Controls, word 1 */
+#define VMX_FEATURE_INTR_WINDOW_EXITING ( 1*32+ 2) /* "" VM-Exit if INTRs are unblocked in guest */
+#define VMX_FEATURE_USE_TSC_OFFSETTING ( 1*32+ 3) /* "tsc_offset" Offset hardware TSC when read in guest */
+#define VMX_FEATURE_HLT_EXITING ( 1*32+ 7) /* "" VM-Exit on HLT */
+#define VMX_FEATURE_INVLPG_EXITING ( 1*32+ 9) /* "" VM-Exit on INVLPG */
+#define VMX_FEATURE_MWAIT_EXITING ( 1*32+ 10) /* "" VM-Exit on MWAIT */
+#define VMX_FEATURE_RDPMC_EXITING ( 1*32+ 11) /* "" VM-Exit on RDPMC */
+#define VMX_FEATURE_RDTSC_EXITING ( 1*32+ 12) /* "" VM-Exit on RDTSC */
+#define VMX_FEATURE_CR3_LOAD_EXITING ( 1*32+ 15) /* "" VM-Exit on writes to CR3 */
+#define VMX_FEATURE_CR3_STORE_EXITING ( 1*32+ 16) /* "" VM-Exit on reads from CR3 */
+#define VMX_FEATURE_TERTIARY_CONTROLS ( 1*32+ 17) /* "" Enable Tertiary VM-Execution Controls */
+#define VMX_FEATURE_CR8_LOAD_EXITING ( 1*32+ 19) /* "" VM-Exit on writes to CR8 */
+#define VMX_FEATURE_CR8_STORE_EXITING ( 1*32+ 20) /* "" VM-Exit on reads from CR8 */
+#define VMX_FEATURE_VIRTUAL_TPR ( 1*32+ 21) /* "vtpr" TPR virtualization, a.k.a. TPR shadow */
+#define VMX_FEATURE_NMI_WINDOW_EXITING ( 1*32+ 22) /* "" VM-Exit if NMIs are unblocked in guest */
+#define VMX_FEATURE_MOV_DR_EXITING ( 1*32+ 23) /* "" VM-Exit on accesses to debug registers */
+#define VMX_FEATURE_UNCOND_IO_EXITING ( 1*32+ 24) /* "" VM-Exit on *all* IN{S} and OUT{S}*/
+#define VMX_FEATURE_USE_IO_BITMAPS ( 1*32+ 25) /* "" VM-Exit based on I/O port */
+#define VMX_FEATURE_MONITOR_TRAP_FLAG ( 1*32+ 27) /* "mtf" VMX single-step VM-Exits */
+#define VMX_FEATURE_USE_MSR_BITMAPS ( 1*32+ 28) /* "" VM-Exit based on MSR index */
+#define VMX_FEATURE_MONITOR_EXITING ( 1*32+ 29) /* "" VM-Exit on MONITOR (MWAIT's accomplice) */
+#define VMX_FEATURE_PAUSE_EXITING ( 1*32+ 30) /* "" VM-Exit on PAUSE (unconditionally) */
+#define VMX_FEATURE_SEC_CONTROLS ( 1*32+ 31) /* "" Enable Secondary VM-Execution Controls */
+
+/* Secondary Processor-Based VM-Execution Controls, word 2 */
+#define VMX_FEATURE_VIRT_APIC_ACCESSES ( 2*32+ 0) /* "vapic" Virtualize memory mapped APIC accesses */
+#define VMX_FEATURE_EPT ( 2*32+ 1) /* Extended Page Tables, a.k.a. Two-Dimensional Paging */
+#define VMX_FEATURE_DESC_EXITING ( 2*32+ 2) /* "" VM-Exit on {S,L}*DT instructions */
+#define VMX_FEATURE_RDTSCP ( 2*32+ 3) /* "" Enable RDTSCP in guest */
+#define VMX_FEATURE_VIRTUAL_X2APIC ( 2*32+ 4) /* "" Virtualize X2APIC for the guest */
+#define VMX_FEATURE_VPID ( 2*32+ 5) /* Virtual Processor ID (TLB ASID modifier) */
+#define VMX_FEATURE_WBINVD_EXITING ( 2*32+ 6) /* "" VM-Exit on WBINVD */
+#define VMX_FEATURE_UNRESTRICTED_GUEST ( 2*32+ 7) /* Allow Big Real Mode and other "invalid" states */
+#define VMX_FEATURE_APIC_REGISTER_VIRT ( 2*32+ 8) /* "vapic_reg" Hardware emulation of reads to the virtual-APIC */
+#define VMX_FEATURE_VIRT_INTR_DELIVERY ( 2*32+ 9) /* "vid" Evaluation and delivery of pending virtual interrupts */
+#define VMX_FEATURE_PAUSE_LOOP_EXITING ( 2*32+ 10) /* "ple" Conditionally VM-Exit on PAUSE at CPL0 */
+#define VMX_FEATURE_RDRAND_EXITING ( 2*32+ 11) /* "" VM-Exit on RDRAND*/
+#define VMX_FEATURE_INVPCID ( 2*32+ 12) /* "" Enable INVPCID in guest */
+#define VMX_FEATURE_VMFUNC ( 2*32+ 13) /* "" Enable VM-Functions (leaf dependent) */
+#define VMX_FEATURE_SHADOW_VMCS ( 2*32+ 14) /* VMREAD/VMWRITE in guest can access shadow VMCS */
+#define VMX_FEATURE_ENCLS_EXITING ( 2*32+ 15) /* "" VM-Exit on ENCLS (leaf dependent) */
+#define VMX_FEATURE_RDSEED_EXITING ( 2*32+ 16) /* "" VM-Exit on RDSEED */
+#define VMX_FEATURE_PAGE_MOD_LOGGING ( 2*32+ 17) /* "pml" Log dirty pages into buffer */
+#define VMX_FEATURE_EPT_VIOLATION_VE ( 2*32+ 18) /* "" Conditionally reflect EPT violations as #VE exceptions */
+#define VMX_FEATURE_PT_CONCEAL_VMX ( 2*32+ 19) /* "" Suppress VMX indicators in Processor Trace */
+#define VMX_FEATURE_XSAVES ( 2*32+ 20) /* "" Enable XSAVES and XRSTORS in guest */
+#define VMX_FEATURE_MODE_BASED_EPT_EXEC ( 2*32+ 22) /* "ept_mode_based_exec" Enable separate EPT EXEC bits for supervisor vs. user */
+#define VMX_FEATURE_PT_USE_GPA ( 2*32+ 24) /* "" Processor Trace logs GPAs */
+#define VMX_FEATURE_TSC_SCALING ( 2*32+ 25) /* Scale hardware TSC when read in guest */
+#define VMX_FEATURE_USR_WAIT_PAUSE ( 2*32+ 26) /* Enable TPAUSE, UMONITOR, UMWAIT in guest */
+#define VMX_FEATURE_ENCLV_EXITING ( 2*32+ 28) /* "" VM-Exit on ENCLV (leaf dependent) */
+#define VMX_FEATURE_BUS_LOCK_DETECTION ( 2*32+ 30) /* "" VM-Exit when bus lock caused */
+#define VMX_FEATURE_NOTIFY_VM_EXITING ( 2*32+ 31) /* VM-Exit when no event windows after notify window */
+
+/* Tertiary Processor-Based VM-Execution Controls, word 3 */
+#define VMX_FEATURE_IPI_VIRT ( 3*32+ 4) /* Enable IPI virtualization */
+#endif /* _ASM_X86_VMXFEATURES_H */
diff --git a/arch/x86/include/asm/vsyscall.h b/arch/x86/include/asm/vsyscall.h
index d0983d255fbd..ab60a71a8dcb 100644
--- a/arch/x86/include/asm/vsyscall.h
+++ b/arch/x86/include/asm/vsyscall.h
@@ -1,44 +1,27 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_VSYSCALL_H
#define _ASM_X86_VSYSCALL_H
-enum vsyscall_num {
- __NR_vgettimeofday,
- __NR_vtime,
- __NR_vgetcpu,
-};
-
-#define VSYSCALL_START (-10UL << 20)
-#define VSYSCALL_SIZE 1024
-#define VSYSCALL_END (-2UL << 20)
-#define VSYSCALL_MAPPED_PAGES 1
-#define VSYSCALL_ADDR(vsyscall_nr) (VSYSCALL_START+VSYSCALL_SIZE*(vsyscall_nr))
-
-#ifdef __KERNEL__
#include <linux/seqlock.h>
+#include <uapi/asm/vsyscall.h>
-#define __section_vgetcpu_mode __attribute__ ((unused, __section__ (".vgetcpu_mode"), aligned(16)))
-#define __section_jiffies __attribute__ ((unused, __section__ (".jiffies"), aligned(16)))
-
-/* Definitions for CONFIG_GENERIC_TIME definitions */
-#define __section_vsyscall_gtod_data __attribute__ \
- ((unused, __section__ (".vsyscall_gtod_data"),aligned(16)))
-#define __section_vsyscall_clock __attribute__ \
- ((unused, __section__ (".vsyscall_clock"),aligned(16)))
-#define __vsyscall_fn \
- __attribute__ ((unused, __section__(".vsyscall_fn"))) notrace
-
-#define VGETCPU_RDTSCP 1
-#define VGETCPU_LSL 2
-
-extern int __vgetcpu_mode;
-extern volatile unsigned long __jiffies;
-
-/* kernel space (writeable) */
-extern int vgetcpu_mode;
-extern struct timezone sys_tz;
-
+#ifdef CONFIG_X86_VSYSCALL_EMULATION
extern void map_vsyscall(void);
-
-#endif /* __KERNEL__ */
+extern void set_vsyscall_pgtable_user_bits(pgd_t *root);
+
+/*
+ * Called on instruction fetch fault in vsyscall page.
+ * Returns true if handled.
+ */
+extern bool emulate_vsyscall(unsigned long error_code,
+ struct pt_regs *regs, unsigned long address);
+#else
+static inline void map_vsyscall(void) {}
+static inline bool emulate_vsyscall(unsigned long error_code,
+ struct pt_regs *regs, unsigned long address)
+{
+ return false;
+}
+#endif
#endif /* _ASM_X86_VSYSCALL_H */
diff --git a/arch/x86/include/asm/vvar.h b/arch/x86/include/asm/vvar.h
new file mode 100644
index 000000000000..183e98e49ab9
--- /dev/null
+++ b/arch/x86/include/asm/vvar.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * vvar.h: Shared vDSO/kernel variable declarations
+ * Copyright (c) 2011 Andy Lutomirski
+ *
+ * A handful of variables are accessible (read-only) from userspace
+ * code in the vsyscall page and the vdso. They are declared here.
+ * Some other file must define them with DEFINE_VVAR.
+ *
+ * In normal kernel code, they are used like any other variable.
+ * In user code, they are accessed through the VVAR macro.
+ *
+ * These variables live in a page of kernel data that has an extra RO
+ * mapping for userspace. Each variable needs a unique offset within
+ * that page; specify that offset with the DECLARE_VVAR macro. (If
+ * you mess up, the linker will catch it.)
+ */
+
+#ifndef _ASM_X86_VVAR_H
+#define _ASM_X86_VVAR_H
+
+#ifdef EMIT_VVAR
+/*
+ * EMIT_VVAR() is used by the kernel linker script to put vvars in the
+ * right place. Also, it's used by kernel code to import offsets values.
+ */
+#define DECLARE_VVAR(offset, type, name) \
+ EMIT_VVAR(name, offset)
+
+#else
+
+extern char __vvar_page;
+
+#define DECLARE_VVAR(offset, type, name) \
+ extern type vvar_ ## name[CS_BASES] \
+ __attribute__((visibility("hidden"))); \
+ extern type timens_ ## name[CS_BASES] \
+ __attribute__((visibility("hidden"))); \
+
+#define VVAR(name) (vvar_ ## name)
+#define TIMENS(name) (timens_ ## name)
+
+#define DEFINE_VVAR(type, name) \
+ type name[CS_BASES] \
+ __attribute__((section(".vvar_" #name), aligned(16))) __visible
+
+#endif
+
+/* DECLARE_VVAR(offset, type, name) */
+
+DECLARE_VVAR(128, struct vdso_data, _vdso_data)
+
+#undef DECLARE_VVAR
+
+#endif
diff --git a/arch/x86/include/asm/word-at-a-time.h b/arch/x86/include/asm/word-at-a-time.h
new file mode 100644
index 000000000000..46b4f1f7f354
--- /dev/null
+++ b/arch/x86/include/asm/word-at-a-time.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_WORD_AT_A_TIME_H
+#define _ASM_WORD_AT_A_TIME_H
+
+#include <linux/kernel.h>
+
+/*
+ * This is largely generic for little-endian machines, but the
+ * optimal byte mask counting is probably going to be something
+ * that is architecture-specific. If you have a reliably fast
+ * bit count instruction, that might be better than the multiply
+ * and shift, for example.
+ */
+struct word_at_a_time {
+ const unsigned long one_bits, high_bits;
+};
+
+#define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
+
+#ifdef CONFIG_64BIT
+
+/*
+ * Jan Achrenius on G+: microoptimized version of
+ * the simpler "(mask & ONEBYTES) * ONEBYTES >> 56"
+ * that works for the bytemasks without having to
+ * mask them first.
+ */
+static inline long count_masked_bytes(unsigned long mask)
+{
+ return mask*0x0001020304050608ul >> 56;
+}
+
+#else /* 32-bit case */
+
+/* Carl Chatfield / Jan Achrenius G+ version for 32-bit */
+static inline long count_masked_bytes(long mask)
+{
+ /* (000000 0000ff 00ffff ffffff) -> ( 1 1 2 3 ) */
+ long a = (0x0ff0001+mask) >> 23;
+ /* Fix the 1 for 00 case */
+ return a & mask;
+}
+
+#endif
+
+/* Return nonzero if it has a zero */
+static inline unsigned long has_zero(unsigned long a, unsigned long *bits, const struct word_at_a_time *c)
+{
+ unsigned long mask = ((a - c->one_bits) & ~a) & c->high_bits;
+ *bits = mask;
+ return mask;
+}
+
+static inline unsigned long prep_zero_mask(unsigned long a, unsigned long bits, const struct word_at_a_time *c)
+{
+ return bits;
+}
+
+static inline unsigned long create_zero_mask(unsigned long bits)
+{
+ bits = (bits - 1) & ~bits;
+ return bits >> 7;
+}
+
+/* The mask we created is directly usable as a bytemask */
+#define zero_bytemask(mask) (mask)
+
+static inline unsigned long find_zero(unsigned long mask)
+{
+ return count_masked_bytes(mask);
+}
+
+/*
+ * Load an unaligned word from kernel space.
+ *
+ * In the (very unlikely) case of the word being a page-crosser
+ * and the next page not being mapped, take the exception and
+ * return zeroes in the non-existing part.
+ */
+static inline unsigned long load_unaligned_zeropad(const void *addr)
+{
+ unsigned long ret;
+
+ asm volatile(
+ "1: mov %[mem], %[ret]\n"
+ "2:\n"
+ _ASM_EXTABLE_TYPE(1b, 2b, EX_TYPE_ZEROPAD)
+ : [ret] "=r" (ret)
+ : [mem] "m" (*(unsigned long *)addr));
+
+ return ret;
+}
+
+#endif /* _ASM_WORD_AT_A_TIME_H */
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 643ebf2e2ad8..88085f369ff6 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -1,31 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_PLATFORM_H
#define _ASM_X86_PLATFORM_H
-#include <asm/pgtable_types.h>
#include <asm/bootparam.h>
+struct ghcb;
struct mpc_bus;
struct mpc_cpu;
+struct pt_regs;
struct mpc_table;
+struct cpuinfo_x86;
+struct irq_domain;
/**
* struct x86_init_mpparse - platform specific mpparse ops
- * @mpc_record: platform specific mpc record accounting
* @setup_ioapic_ids: platform specific ioapic id override
- * @mpc_apic_id: platform specific mpc apic id assignment
- * @smp_read_mpc_oem: platform specific oem mpc table setup
- * @mpc_oem_pci_bus: platform specific pci bus setup (default NULL)
- * @mpc_oem_bus_info: platform specific mpc bus info
* @find_smp_config: find the smp configuration
* @get_smp_config: get the smp configuration
*/
struct x86_init_mpparse {
- void (*mpc_record)(unsigned int mode);
void (*setup_ioapic_ids)(void);
- int (*mpc_apic_id)(struct mpc_cpu *m);
- void (*smp_read_mpc_oem)(struct mpc_table *mpc);
- void (*mpc_oem_pci_bus)(struct mpc_bus *m);
- void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name);
void (*find_smp_config)(void);
void (*get_smp_config)(unsigned int early);
};
@@ -49,17 +43,21 @@ struct x86_init_resources {
* @pre_vector_init: init code to run before interrupt vectors
* are set up.
* @intr_init: interrupt init code
- * @trap_init: platform specific trap setup
+ * @intr_mode_select: interrupt delivery mode selection
+ * @intr_mode_init: interrupt delivery mode setup
+ * @create_pci_msi_domain: Create the PCI/MSI interrupt domain
*/
struct x86_init_irqs {
void (*pre_vector_init)(void);
void (*intr_init)(void);
- void (*trap_init)(void);
+ void (*intr_mode_select)(void);
+ void (*intr_mode_init)(void);
+ struct irq_domain *(*create_pci_msi_domain)(void);
};
/**
* struct x86_init_oem - oem platform specific customizing functions
- * @arch_setup: platform specific architecure setup
+ * @arch_setup: platform specific architecture setup
* @banner: print a platform specific banner
*/
struct x86_init_oem {
@@ -69,25 +67,24 @@ struct x86_init_oem {
/**
* struct x86_init_paging - platform specific paging functions
- * @pagetable_setup_start: platform specific pre paging_init() call
- * @pagetable_setup_done: platform specific post paging_init() call
+ * @pagetable_init: platform specific paging initialization call to setup
+ * the kernel pagetables and prepare accessors functions.
+ * Callback must call paging_init(). Called once after the
+ * direct mapping for phys memory is available.
*/
struct x86_init_paging {
- void (*pagetable_setup_start)(pgd_t *base);
- void (*pagetable_setup_done)(pgd_t *base);
+ void (*pagetable_init)(void);
};
/**
* struct x86_init_timers - platform specific timer setup
* @setup_perpcu_clockev: set up the per cpu clock event device for the
* boot cpu
- * @tsc_pre_init: platform function called before TSC init
* @timer_init: initialize the platform timer (default PIT/HPET)
* @wallclock_init: init the wallclock device
*/
struct x86_init_timers {
void (*setup_percpu_clockev)(void);
- void (*tsc_pre_init)(void);
void (*timer_init)(void);
void (*wallclock_init)(void);
};
@@ -115,6 +112,51 @@ struct x86_init_pci {
};
/**
+ * struct x86_hyper_init - x86 hypervisor init functions
+ * @init_platform: platform setup
+ * @guest_late_init: guest late init
+ * @x2apic_available: X2APIC detection
+ * @msi_ext_dest_id: MSI supports 15-bit APIC IDs
+ * @init_mem_mapping: setup early mappings during init_mem_mapping()
+ * @init_after_bootmem: guest init after boot allocator is finished
+ */
+struct x86_hyper_init {
+ void (*init_platform)(void);
+ void (*guest_late_init)(void);
+ bool (*x2apic_available)(void);
+ bool (*msi_ext_dest_id)(void);
+ void (*init_mem_mapping)(void);
+ void (*init_after_bootmem)(void);
+};
+
+/**
+ * struct x86_init_acpi - x86 ACPI init functions
+ * @set_root_poitner: set RSDP address
+ * @get_root_pointer: get RSDP address
+ * @reduced_hw_early_init: hardware reduced platform early init
+ */
+struct x86_init_acpi {
+ void (*set_root_pointer)(u64 addr);
+ u64 (*get_root_pointer)(void);
+ void (*reduced_hw_early_init)(void);
+};
+
+/**
+ * struct x86_guest - Functions used by misc guest incarnations like SEV, TDX, etc.
+ *
+ * @enc_status_change_prepare Notify HV before the encryption status of a range is changed
+ * @enc_status_change_finish Notify HV after the encryption status of a range is changed
+ * @enc_tlb_flush_required Returns true if a TLB flush is needed before changing page encryption status
+ * @enc_cache_flush_required Returns true if a cache flush is needed before changing page encryption status
+ */
+struct x86_guest {
+ void (*enc_status_change_prepare)(unsigned long vaddr, int npages, bool enc);
+ bool (*enc_status_change_finish)(unsigned long vaddr, int npages, bool enc);
+ bool (*enc_tlb_flush_required)(bool enc);
+ bool (*enc_cache_flush_required)(void);
+};
+
+/**
* struct x86_init_ops - functions for platform specific setup
*
*/
@@ -127,49 +169,168 @@ struct x86_init_ops {
struct x86_init_timers timers;
struct x86_init_iommu iommu;
struct x86_init_pci pci;
+ struct x86_hyper_init hyper;
+ struct x86_init_acpi acpi;
};
/**
* struct x86_cpuinit_ops - platform specific cpu hotplug setups
* @setup_percpu_clockev: set up the per cpu clock event device
+ * @early_percpu_clock_init: early init of the per cpu clock event device
*/
struct x86_cpuinit_ops {
void (*setup_percpu_clockev)(void);
+ void (*early_percpu_clock_init)(void);
+ void (*fixup_cpu_id)(struct cpuinfo_x86 *c, int node);
+};
+
+struct timespec64;
+
+/**
+ * struct x86_legacy_devices - legacy x86 devices
+ *
+ * @pnpbios: this platform can have a PNPBIOS. If this is disabled the platform
+ * is known to never have a PNPBIOS.
+ *
+ * These are devices known to require LPC or ISA bus. The definition of legacy
+ * devices adheres to the ACPI 5.2.9.3 IA-PC Boot Architecture flag
+ * ACPI_FADT_LEGACY_DEVICES. These devices consist of user visible devices on
+ * the LPC or ISA bus. User visible devices are devices that have end-user
+ * accessible connectors (for example, LPT parallel port). Legacy devices on
+ * the LPC bus consist for example of serial and parallel ports, PS/2 keyboard
+ * / mouse, and the floppy disk controller. A system that lacks all known
+ * legacy devices can assume all devices can be detected exclusively via
+ * standard device enumeration mechanisms including the ACPI namespace.
+ *
+ * A system which has does not have ACPI_FADT_LEGACY_DEVICES enabled must not
+ * have any of the legacy devices enumerated below present.
+ */
+struct x86_legacy_devices {
+ int pnpbios;
+};
+
+/**
+ * enum x86_legacy_i8042_state - i8042 keyboard controller state
+ * @X86_LEGACY_I8042_PLATFORM_ABSENT: the controller is always absent on
+ * given platform/subarch.
+ * @X86_LEGACY_I8042_FIRMWARE_ABSENT: firmware reports that the controller
+ * is absent.
+ * @X86_LEGACY_i8042_EXPECTED_PRESENT: the controller is likely to be
+ * present, the i8042 driver should probe for controller existence.
+ */
+enum x86_legacy_i8042_state {
+ X86_LEGACY_I8042_PLATFORM_ABSENT,
+ X86_LEGACY_I8042_FIRMWARE_ABSENT,
+ X86_LEGACY_I8042_EXPECTED_PRESENT,
+};
+
+/**
+ * struct x86_legacy_features - legacy x86 features
+ *
+ * @i8042: indicated if we expect the device to have i8042 controller
+ * present.
+ * @rtc: this device has a CMOS real-time clock present
+ * @reserve_bios_regions: boot code will search for the EBDA address and the
+ * start of the 640k - 1M BIOS region. If false, the platform must
+ * ensure that its memory map correctly reserves sub-1MB regions as needed.
+ * @devices: legacy x86 devices, refer to struct x86_legacy_devices
+ * documentation for further details.
+ */
+struct x86_legacy_features {
+ enum x86_legacy_i8042_state i8042;
+ int rtc;
+ int warm_reset;
+ int no_vga;
+ int reserve_bios_regions;
+ struct x86_legacy_devices devices;
+};
+
+/**
+ * struct x86_hyper_runtime - x86 hypervisor specific runtime callbacks
+ *
+ * @pin_vcpu: pin current vcpu to specified physical
+ * cpu (run rarely)
+ * @sev_es_hcall_prepare: Load additional hypervisor-specific
+ * state into the GHCB when doing a VMMCALL under
+ * SEV-ES. Called from the #VC exception handler.
+ * @sev_es_hcall_finish: Copies state from the GHCB back into the
+ * processor (or pt_regs). Also runs checks on the
+ * state returned from the hypervisor after a
+ * VMMCALL under SEV-ES. Needs to return 'false'
+ * if the checks fail. Called from the #VC
+ * exception handler.
+ * @is_private_mmio: For CoCo VMs, must map MMIO address as private.
+ * Used when device is emulated by a paravisor
+ * layer in the VM context.
+ */
+struct x86_hyper_runtime {
+ void (*pin_vcpu)(int cpu);
+ void (*sev_es_hcall_prepare)(struct ghcb *ghcb, struct pt_regs *regs);
+ bool (*sev_es_hcall_finish)(struct ghcb *ghcb, struct pt_regs *regs);
+ bool (*is_private_mmio)(u64 addr);
};
/**
* struct x86_platform_ops - platform specific runtime functions
- * @calibrate_tsc: calibrate TSC
+ * @calibrate_cpu: calibrate CPU
+ * @calibrate_tsc: calibrate TSC, if different from CPU
* @get_wallclock: get time from HW clock like RTC etc.
* @set_wallclock: set time back to HW clock
* @is_untracked_pat_range exclude from PAT logic
* @nmi_init enable NMI on cpus
- * @i8042_detect pre-detect if i8042 controller exists
+ * @save_sched_clock_state: save state for sched_clock() on suspend
+ * @restore_sched_clock_state: restore state for sched_clock() on resume
+ * @apic_post_init: adjust apic if needed
+ * @legacy: legacy features
+ * @set_legacy_features: override legacy features. Use of this callback
+ * is highly discouraged. You should only need
+ * this if your hardware platform requires further
+ * custom fine tuning far beyond what may be
+ * possible in x86_early_init_platform_quirks() by
+ * only using the current x86_hardware_subarch
+ * semantics.
+ * @realmode_reserve: reserve memory for realmode trampoline
+ * @realmode_init: initialize realmode trampoline
+ * @hyper: x86 hypervisor specific runtime callbacks
*/
struct x86_platform_ops {
+ unsigned long (*calibrate_cpu)(void);
unsigned long (*calibrate_tsc)(void);
- unsigned long (*get_wallclock)(void);
- int (*set_wallclock)(unsigned long nowtime);
+ void (*get_wallclock)(struct timespec64 *ts);
+ int (*set_wallclock)(const struct timespec64 *ts);
void (*iommu_shutdown)(void);
bool (*is_untracked_pat_range)(u64 start, u64 end);
void (*nmi_init)(void);
- int (*i8042_detect)(void);
+ unsigned char (*get_nmi_reason)(void);
+ void (*save_sched_clock_state)(void);
+ void (*restore_sched_clock_state)(void);
+ void (*apic_post_init)(void);
+ struct x86_legacy_features legacy;
+ void (*set_legacy_features)(void);
+ void (*realmode_reserve)(void);
+ void (*realmode_init)(void);
+ struct x86_hyper_runtime hyper;
+ struct x86_guest guest;
};
-struct pci_dev;
-
-struct x86_msi_ops {
- int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
- void (*teardown_msi_irq)(unsigned int irq);
- void (*teardown_msi_irqs)(struct pci_dev *dev);
+struct x86_apic_ops {
+ unsigned int (*io_apic_read) (unsigned int apic, unsigned int reg);
+ void (*restore)(void);
};
extern struct x86_init_ops x86_init;
extern struct x86_cpuinit_ops x86_cpuinit;
extern struct x86_platform_ops x86_platform;
extern struct x86_msi_ops x86_msi;
+extern struct x86_apic_ops x86_apic_ops;
+extern void x86_early_init_platform_quirks(void);
extern void x86_init_noop(void);
extern void x86_init_uint_noop(unsigned int unused);
+extern bool bool_x86_init_noop(void);
+extern void x86_op_int_noop(int cpu);
+extern bool x86_pnpbios_disabled(void);
+extern int set_rtc_noop(const struct timespec64 *now);
+extern void get_rtc_noop(struct timespec64 *now);
#endif
diff --git a/arch/x86/include/asm/xcr.h b/arch/x86/include/asm/xcr.h
deleted file mode 100644
index f2cba4e79a23..000000000000
--- a/arch/x86/include/asm/xcr.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/* -*- linux-c -*- ------------------------------------------------------- *
- *
- * Copyright 2008 rPath, Inc. - All Rights Reserved
- *
- * This file is part of the Linux kernel, and is made available under
- * the terms of the GNU General Public License version 2 or (at your
- * option) any later version; incorporated herein by reference.
- *
- * ----------------------------------------------------------------------- */
-
-/*
- * asm-x86/xcr.h
- *
- * Definitions for the eXtended Control Register instructions
- */
-
-#ifndef _ASM_X86_XCR_H
-#define _ASM_X86_XCR_H
-
-#define XCR_XFEATURE_ENABLED_MASK 0x00000000
-
-#ifdef __KERNEL__
-# ifndef __ASSEMBLY__
-
-#include <linux/types.h>
-
-static inline u64 xgetbv(u32 index)
-{
- u32 eax, edx;
-
- asm volatile(".byte 0x0f,0x01,0xd0" /* xgetbv */
- : "=a" (eax), "=d" (edx)
- : "c" (index));
- return eax + ((u64)edx << 32);
-}
-
-static inline void xsetbv(u32 index, u64 value)
-{
- u32 eax = value;
- u32 edx = value >> 32;
-
- asm volatile(".byte 0x0f,0x01,0xd1" /* xsetbv */
- : : "a" (eax), "d" (edx), "c" (index));
-}
-
-# endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_X86_XCR_H */
diff --git a/arch/x86/include/asm/xen/cpuid.h b/arch/x86/include/asm/xen/cpuid.h
new file mode 100644
index 000000000000..a3c29b1496c8
--- /dev/null
+++ b/arch/x86/include/asm/xen/cpuid.h
@@ -0,0 +1,139 @@
+/******************************************************************************
+ * arch-x86/cpuid.h
+ *
+ * CPUID interface to Xen.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright (c) 2007 Citrix Systems, Inc.
+ *
+ * Authors:
+ * Keir Fraser <keir@xen.org>
+ */
+
+#ifndef __XEN_PUBLIC_ARCH_X86_CPUID_H__
+#define __XEN_PUBLIC_ARCH_X86_CPUID_H__
+
+/*
+ * For compatibility with other hypervisor interfaces, the Xen cpuid leaves
+ * can be found at the first otherwise unused 0x100 aligned boundary starting
+ * from 0x40000000.
+ *
+ * e.g If viridian extensions are enabled for an HVM domain, the Xen cpuid
+ * leaves will start at 0x40000100
+ */
+
+#define XEN_CPUID_FIRST_LEAF 0x40000000
+#define XEN_CPUID_LEAF(i) (XEN_CPUID_FIRST_LEAF + (i))
+
+/*
+ * Leaf 1 (0x40000x00)
+ * EAX: Largest Xen-information leaf. All leaves up to an including @EAX
+ * are supported by the Xen host.
+ * EBX-EDX: "XenVMMXenVMM" signature, allowing positive identification
+ * of a Xen host.
+ */
+#define XEN_CPUID_SIGNATURE_EBX 0x566e6558 /* "XenV" */
+#define XEN_CPUID_SIGNATURE_ECX 0x65584d4d /* "MMXe" */
+#define XEN_CPUID_SIGNATURE_EDX 0x4d4d566e /* "nVMM" */
+
+/*
+ * Leaf 2 (0x40000x01)
+ * EAX[31:16]: Xen major version.
+ * EAX[15: 0]: Xen minor version.
+ * EBX-EDX: Reserved (currently all zeroes).
+ */
+
+/*
+ * Leaf 3 (0x40000x02)
+ * EAX: Number of hypercall transfer pages. This register is always guaranteed
+ * to specify one hypercall page.
+ * EBX: Base address of Xen-specific MSRs.
+ * ECX: Features 1. Unused bits are set to zero.
+ * EDX: Features 2. Unused bits are set to zero.
+ */
+
+/* Does the host support MMU_PT_UPDATE_PRESERVE_AD for this guest? */
+#define _XEN_CPUID_FEAT1_MMU_PT_UPDATE_PRESERVE_AD 0
+#define XEN_CPUID_FEAT1_MMU_PT_UPDATE_PRESERVE_AD (1u<<0)
+
+/*
+ * Leaf 4 (0x40000x03)
+ * Sub-leaf 0: EAX: bit 0: emulated tsc
+ * bit 1: host tsc is known to be reliable
+ * bit 2: RDTSCP instruction available
+ * EBX: tsc_mode: 0=default (emulate if necessary), 1=emulate,
+ * 2=no emulation, 3=no emulation + TSC_AUX support
+ * ECX: guest tsc frequency in kHz
+ * EDX: guest tsc incarnation (migration count)
+ * Sub-leaf 1: EAX: tsc offset low part
+ * EBX: tsc offset high part
+ * ECX: multiplicator for tsc->ns conversion
+ * EDX: shift amount for tsc->ns conversion
+ * Sub-leaf 2: EAX: host tsc frequency in kHz
+ */
+
+#define XEN_CPUID_TSC_EMULATED (1u << 0)
+#define XEN_CPUID_HOST_TSC_RELIABLE (1u << 1)
+#define XEN_CPUID_RDTSCP_INSTR_AVAIL (1u << 2)
+
+#define XEN_CPUID_TSC_MODE_DEFAULT (0)
+#define XEN_CPUID_TSC_MODE_ALWAYS_EMULATE (1u)
+#define XEN_CPUID_TSC_MODE_NEVER_EMULATE (2u)
+#define XEN_CPUID_TSC_MODE_PVRDTSCP (3u)
+
+/*
+ * Leaf 5 (0x40000x04)
+ * HVM-specific features
+ * Sub-leaf 0: EAX: Features
+ * Sub-leaf 0: EBX: vcpu id (iff EAX has XEN_HVM_CPUID_VCPU_ID_PRESENT flag)
+ * Sub-leaf 0: ECX: domain id (iff EAX has XEN_HVM_CPUID_DOMID_PRESENT flag)
+ */
+#define XEN_HVM_CPUID_APIC_ACCESS_VIRT (1u << 0) /* Virtualized APIC registers */
+#define XEN_HVM_CPUID_X2APIC_VIRT (1u << 1) /* Virtualized x2APIC accesses */
+/* Memory mapped from other domains has valid IOMMU entries */
+#define XEN_HVM_CPUID_IOMMU_MAPPINGS (1u << 2)
+#define XEN_HVM_CPUID_VCPU_ID_PRESENT (1u << 3) /* vcpu id is present in EBX */
+#define XEN_HVM_CPUID_DOMID_PRESENT (1u << 4) /* domid is present in ECX */
+/*
+ * With interrupt format set to 0 (non-remappable) bits 55:49 from the
+ * IO-APIC RTE and bits 11:5 from the MSI address can be used to store
+ * high bits for the Destination ID. This expands the Destination ID
+ * field from 8 to 15 bits, allowing to target APIC IDs up 32768.
+ */
+#define XEN_HVM_CPUID_EXT_DEST_ID (1u << 5)
+/*
+ * Per-vCPU event channel upcalls work correctly with physical IRQs
+ * bound to event channels.
+ */
+#define XEN_HVM_CPUID_UPCALL_VECTOR (1u << 6)
+
+/*
+ * Leaf 6 (0x40000x05)
+ * PV-specific parameters
+ * Sub-leaf 0: EAX: max available sub-leaf
+ * Sub-leaf 0: EBX: bits 0-7: max machine address width
+ */
+
+/* Max. address width in bits taking memory hotplug into account. */
+#define XEN_CPUID_MACHINE_ADDRESS_WIDTH_MASK (0xffu << 0)
+
+#define XEN_CPUID_MAX_NUM_LEAVES 5
+
+#endif /* __XEN_PUBLIC_ARCH_X86_CPUID_H__ */
diff --git a/arch/x86/include/asm/xen/events.h b/arch/x86/include/asm/xen/events.h
index 1df35417c412..62bdceb594f1 100644
--- a/arch/x86/include/asm/xen/events.h
+++ b/arch/x86/include/asm/xen/events.h
@@ -1,11 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_XEN_EVENTS_H
#define _ASM_X86_XEN_EVENTS_H
+#include <xen/xen.h>
+
enum ipi_vector {
XEN_RESCHEDULE_VECTOR,
XEN_CALL_FUNCTION_VECTOR,
XEN_CALL_FUNCTION_SINGLE_VECTOR,
XEN_SPIN_UNLOCK_VECTOR,
+ XEN_IRQ_WORK_VECTOR,
+ XEN_NMI_VECTOR,
XEN_NR_IPIS,
};
@@ -15,4 +20,19 @@ static inline int xen_irqs_disabled(struct pt_regs *regs)
return raw_irqs_disabled_flags(regs->flags);
}
+/* No need for a barrier -- XCHG is a barrier on x86. */
+#define xchg_xen_ulong(ptr, val) xchg((ptr), (val))
+
+extern bool xen_have_vector_callback;
+
+/*
+ * Events delivered via platform PCI interrupts are always
+ * routed to vcpu 0 and hence cannot be rebound.
+ */
+static inline bool xen_support_evtchn_rebind(void)
+{
+ return (!xen_hvm_domain() || xen_have_vector_callback);
+}
+
+extern bool xen_percpu_upcall;
#endif /* _ASM_X86_XEN_EVENTS_H */
diff --git a/arch/x86/include/asm/xen/grant_table.h b/arch/x86/include/asm/xen/grant_table.h
deleted file mode 100644
index fdbbb45767a6..000000000000
--- a/arch/x86/include/asm/xen/grant_table.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _ASM_X86_XEN_GRANT_TABLE_H
-#define _ASM_X86_XEN_GRANT_TABLE_H
-
-#define xen_alloc_vm_area(size) alloc_vm_area(size)
-#define xen_free_vm_area(area) free_vm_area(area)
-
-#endif /* _ASM_X86_XEN_GRANT_TABLE_H */
diff --git a/arch/x86/include/asm/xen/hypercall.h b/arch/x86/include/asm/xen/hypercall.h
index 8508bfe52296..a2dd24947eb8 100644
--- a/arch/x86/include/asm/xen/hypercall.h
+++ b/arch/x86/include/asm/xen/hypercall.h
@@ -38,13 +38,21 @@
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/types.h>
+#include <linux/pgtable.h>
+
+#include <trace/events/xen.h>
#include <asm/page.h>
-#include <asm/pgtable.h>
+#include <asm/smap.h>
+#include <asm/nospec-branch.h>
#include <xen/interface/xen.h>
#include <xen/interface/sched.h>
#include <xen/interface/physdev.h>
+#include <xen/interface/platform.h>
+#include <xen/interface/xen-mca.h>
+
+struct xen_dm_op_buf;
/*
* The hypercall asms have to meet several constraints:
@@ -74,7 +82,7 @@
* - clobber the rest
*
* The result certainly isn't pretty, and it really shows up cpp's
- * weakness as as macro language. Sorry. (But let's just give thanks
+ * weakness as a macro language. Sorry. (But let's just give thanks
* there aren't more than 5 arguments...)
*/
@@ -108,7 +116,7 @@ extern struct { char _entry[32]; } hypercall_page[];
register unsigned long __arg4 asm(__HYPERCALL_ARG4REG) = __arg4; \
register unsigned long __arg5 asm(__HYPERCALL_ARG5REG) = __arg5;
-#define __HYPERCALL_0PARAM "=r" (__res)
+#define __HYPERCALL_0PARAM "=r" (__res), ASM_CALL_CONSTRAINT
#define __HYPERCALL_1PARAM __HYPERCALL_0PARAM, "+r" (__arg1)
#define __HYPERCALL_2PARAM __HYPERCALL_1PARAM, "+r" (__arg2)
#define __HYPERCALL_3PARAM __HYPERCALL_2PARAM, "+r" (__arg3)
@@ -189,34 +197,58 @@ extern struct { char _entry[32]; } hypercall_page[];
(type)__res; \
})
-#define _hypercall5(type, name, a1, a2, a3, a4, a5) \
-({ \
- __HYPERCALL_DECLS; \
- __HYPERCALL_5ARG(a1, a2, a3, a4, a5); \
- asm volatile (__HYPERCALL \
- : __HYPERCALL_5PARAM \
- : __HYPERCALL_ENTRY(name) \
- : __HYPERCALL_CLOBBER5); \
- (type)__res; \
-})
-
static inline long
-privcmd_call(unsigned call,
- unsigned long a1, unsigned long a2,
- unsigned long a3, unsigned long a4,
- unsigned long a5)
+xen_single_call(unsigned int call,
+ unsigned long a1, unsigned long a2,
+ unsigned long a3, unsigned long a4,
+ unsigned long a5)
{
__HYPERCALL_DECLS;
__HYPERCALL_5ARG(a1, a2, a3, a4, a5);
- asm volatile("call *%[call]"
+ if (call >= PAGE_SIZE / sizeof(hypercall_page[0]))
+ return -EINVAL;
+
+ asm volatile(CALL_NOSPEC
: __HYPERCALL_5PARAM
- : [call] "a" (&hypercall_page[call])
+ : [thunk_target] "a" (&hypercall_page[call])
: __HYPERCALL_CLOBBER5);
return (long)__res;
}
+static __always_inline void __xen_stac(void)
+{
+ /*
+ * Suppress objtool seeing the STAC/CLAC and getting confused about it
+ * calling random code with AC=1.
+ */
+ asm volatile(ANNOTATE_IGNORE_ALTERNATIVE
+ ASM_STAC ::: "memory", "flags");
+}
+
+static __always_inline void __xen_clac(void)
+{
+ asm volatile(ANNOTATE_IGNORE_ALTERNATIVE
+ ASM_CLAC ::: "memory", "flags");
+}
+
+static inline long
+privcmd_call(unsigned int call,
+ unsigned long a1, unsigned long a2,
+ unsigned long a3, unsigned long a4,
+ unsigned long a5)
+{
+ long res;
+
+ __xen_stac();
+ res = xen_single_call(call, a1, a2, a3, a4, a5);
+ __xen_clac();
+
+ return res;
+}
+
+#ifdef CONFIG_XEN_PV
static inline int
HYPERVISOR_set_trap_table(struct trap_info *table)
{
@@ -244,47 +276,113 @@ HYPERVISOR_set_gdt(unsigned long *frame_list, int entries)
}
static inline int
-HYPERVISOR_stack_switch(unsigned long ss, unsigned long esp)
+HYPERVISOR_callback_op(int cmd, void *arg)
{
- return _hypercall2(int, stack_switch, ss, esp);
+ return _hypercall2(int, callback_op, cmd, arg);
}
-#ifdef CONFIG_X86_32
-static inline int
-HYPERVISOR_set_callbacks(unsigned long event_selector,
- unsigned long event_address,
- unsigned long failsafe_selector,
- unsigned long failsafe_address)
+static __always_inline int
+HYPERVISOR_set_debugreg(int reg, unsigned long value)
{
- return _hypercall4(int, set_callbacks,
- event_selector, event_address,
- failsafe_selector, failsafe_address);
+ return _hypercall2(int, set_debugreg, reg, value);
}
-#else /* CONFIG_X86_64 */
-static inline int
-HYPERVISOR_set_callbacks(unsigned long event_address,
- unsigned long failsafe_address,
- unsigned long syscall_address)
+
+static __always_inline unsigned long
+HYPERVISOR_get_debugreg(int reg)
{
- return _hypercall3(int, set_callbacks,
- event_address, failsafe_address,
- syscall_address);
+ return _hypercall1(unsigned long, get_debugreg, reg);
}
-#endif /* CONFIG_X86_{32,64} */
static inline int
-HYPERVISOR_callback_op(int cmd, void *arg)
+HYPERVISOR_update_descriptor(u64 ma, u64 desc)
{
- return _hypercall2(int, callback_op, cmd, arg);
+ return _hypercall2(int, update_descriptor, ma, desc);
}
static inline int
-HYPERVISOR_fpu_taskswitch(int set)
+HYPERVISOR_update_va_mapping(unsigned long va, pte_t new_val,
+ unsigned long flags)
{
- return _hypercall1(int, fpu_taskswitch, set);
+ return _hypercall3(int, update_va_mapping, va, new_val.pte, flags);
}
static inline int
+HYPERVISOR_set_segment_base(int reg, unsigned long value)
+{
+ return _hypercall2(int, set_segment_base, reg, value);
+}
+
+static inline void
+MULTI_fpu_taskswitch(struct multicall_entry *mcl, int set)
+{
+ mcl->op = __HYPERVISOR_fpu_taskswitch;
+ mcl->args[0] = set;
+
+ trace_xen_mc_entry(mcl, 1);
+}
+
+static inline void
+MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va,
+ pte_t new_val, unsigned long flags)
+{
+ mcl->op = __HYPERVISOR_update_va_mapping;
+ mcl->args[0] = va;
+ mcl->args[1] = new_val.pte;
+ mcl->args[2] = flags;
+
+ trace_xen_mc_entry(mcl, 3);
+}
+
+static inline void
+MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr,
+ struct desc_struct desc)
+{
+ mcl->op = __HYPERVISOR_update_descriptor;
+ mcl->args[0] = maddr;
+ mcl->args[1] = *(unsigned long *)&desc;
+
+ trace_xen_mc_entry(mcl, 2);
+}
+
+static inline void
+MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req,
+ int count, int *success_count, domid_t domid)
+{
+ mcl->op = __HYPERVISOR_mmu_update;
+ mcl->args[0] = (unsigned long)req;
+ mcl->args[1] = count;
+ mcl->args[2] = (unsigned long)success_count;
+ mcl->args[3] = domid;
+
+ trace_xen_mc_entry(mcl, 4);
+}
+
+static inline void
+MULTI_mmuext_op(struct multicall_entry *mcl, struct mmuext_op *op, int count,
+ int *success_count, domid_t domid)
+{
+ mcl->op = __HYPERVISOR_mmuext_op;
+ mcl->args[0] = (unsigned long)op;
+ mcl->args[1] = count;
+ mcl->args[2] = (unsigned long)success_count;
+ mcl->args[3] = domid;
+
+ trace_xen_mc_entry(mcl, 4);
+}
+
+static inline void
+MULTI_stack_switch(struct multicall_entry *mcl,
+ unsigned long ss, unsigned long esp)
+{
+ mcl->op = __HYPERVISOR_stack_switch;
+ mcl->args[0] = ss;
+ mcl->args[1] = esp;
+
+ trace_xen_mc_entry(mcl, 2);
+}
+#endif
+
+static __always_inline int
HYPERVISOR_sched_op(int cmd, void *arg)
{
return _hypercall2(int, sched_op, cmd, arg);
@@ -299,64 +397,38 @@ HYPERVISOR_set_timer_op(u64 timeout)
}
static inline int
-HYPERVISOR_set_debugreg(int reg, unsigned long value)
+HYPERVISOR_mca(struct xen_mc *mc_op)
{
- return _hypercall2(int, set_debugreg, reg, value);
-}
-
-static inline unsigned long
-HYPERVISOR_get_debugreg(int reg)
-{
- return _hypercall1(unsigned long, get_debugreg, reg);
+ mc_op->interface_version = XEN_MCA_INTERFACE_VERSION;
+ return _hypercall1(int, mca, mc_op);
}
static inline int
-HYPERVISOR_update_descriptor(u64 ma, u64 desc)
+HYPERVISOR_platform_op(struct xen_platform_op *op)
{
- if (sizeof(u64) == sizeof(long))
- return _hypercall2(int, update_descriptor, ma, desc);
- return _hypercall4(int, update_descriptor, ma, ma>>32, desc, desc>>32);
+ op->interface_version = XENPF_INTERFACE_VERSION;
+ return _hypercall1(int, platform_op, op);
}
-static inline int
+static inline long
HYPERVISOR_memory_op(unsigned int cmd, void *arg)
{
- return _hypercall2(int, memory_op, cmd, arg);
+ return _hypercall2(long, memory_op, cmd, arg);
}
static inline int
-HYPERVISOR_multicall(void *call_list, int nr_calls)
+HYPERVISOR_multicall(void *call_list, uint32_t nr_calls)
{
return _hypercall2(int, multicall, call_list, nr_calls);
}
static inline int
-HYPERVISOR_update_va_mapping(unsigned long va, pte_t new_val,
- unsigned long flags)
-{
- if (sizeof(new_val) == sizeof(long))
- return _hypercall3(int, update_va_mapping, va,
- new_val.pte, flags);
- else
- return _hypercall4(int, update_va_mapping, va,
- new_val.pte, new_val.pte >> 32, flags);
-}
-
-static inline int
HYPERVISOR_event_channel_op(int cmd, void *arg)
{
- int rc = _hypercall2(int, event_channel_op, cmd, arg);
- if (unlikely(rc == -ENOSYS)) {
- struct evtchn_op op;
- op.cmd = cmd;
- memcpy(&op.u, arg, sizeof(op.u));
- rc = _hypercall1(int, event_channel_op_compat, &op);
- memcpy(arg, &op.u, sizeof(op.u));
- }
- return rc;
+ return _hypercall2(int, event_channel_op, cmd, arg);
}
-static inline int
+static __always_inline int
HYPERVISOR_xen_version(int cmd, void *arg)
{
return _hypercall2(int, xen_version, cmd, arg);
@@ -371,15 +443,7 @@ HYPERVISOR_console_io(int cmd, int count, char *str)
static inline int
HYPERVISOR_physdev_op(int cmd, void *arg)
{
- int rc = _hypercall2(int, physdev_op, cmd, arg);
- if (unlikely(rc == -ENOSYS)) {
- struct physdev_op op;
- op.cmd = cmd;
- memcpy(&op.u, arg, sizeof(op.u));
- rc = _hypercall1(int, physdev_op_compat, &op);
- memcpy(arg, &op.u, sizeof(op.u));
- }
- return rc;
+ return _hypercall2(int, physdev_op, cmd, arg);
}
static inline int
@@ -389,19 +453,6 @@ HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count)
}
static inline int
-HYPERVISOR_update_va_mapping_otherdomain(unsigned long va, pte_t new_val,
- unsigned long flags, domid_t domid)
-{
- if (sizeof(new_val) == sizeof(long))
- return _hypercall4(int, update_va_mapping_otherdomain, va,
- new_val.pte, flags, domid);
- else
- return _hypercall5(int, update_va_mapping_otherdomain, va,
- new_val.pte, new_val.pte >> 32,
- flags, domid);
-}
-
-static inline int
HYPERVISOR_vm_assist(unsigned int cmd, unsigned int type)
{
return _hypercall2(int, vm_assist, cmd, type);
@@ -413,14 +464,6 @@ HYPERVISOR_vcpu_op(int cmd, int vcpuid, void *extra_args)
return _hypercall3(int, vcpu_op, cmd, vcpuid, extra_args);
}
-#ifdef CONFIG_X86_64
-static inline int
-HYPERVISOR_set_segment_base(int reg, unsigned long value)
-{
- return _hypercall2(int, set_segment_base, reg, value);
-}
-#endif
-
static inline int
HYPERVISOR_suspend(unsigned long start_info_mfn)
{
@@ -435,131 +478,27 @@ HYPERVISOR_suspend(unsigned long start_info_mfn)
return _hypercall3(int, sched_op, SCHEDOP_shutdown, &r, start_info_mfn);
}
-static inline int
-HYPERVISOR_nmi_op(unsigned long op, unsigned long arg)
-{
- return _hypercall2(int, nmi_op, op, arg);
-}
-
static inline unsigned long __must_check
HYPERVISOR_hvm_op(int op, void *arg)
{
return _hypercall2(unsigned long, hvm_op, op, arg);
}
-static inline void
-MULTI_fpu_taskswitch(struct multicall_entry *mcl, int set)
-{
- mcl->op = __HYPERVISOR_fpu_taskswitch;
- mcl->args[0] = set;
-}
-
-static inline void
-MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va,
- pte_t new_val, unsigned long flags)
-{
- mcl->op = __HYPERVISOR_update_va_mapping;
- mcl->args[0] = va;
- if (sizeof(new_val) == sizeof(long)) {
- mcl->args[1] = new_val.pte;
- mcl->args[2] = flags;
- } else {
- mcl->args[1] = new_val.pte;
- mcl->args[2] = new_val.pte >> 32;
- mcl->args[3] = flags;
- }
-}
-
-static inline void
-MULTI_grant_table_op(struct multicall_entry *mcl, unsigned int cmd,
- void *uop, unsigned int count)
-{
- mcl->op = __HYPERVISOR_grant_table_op;
- mcl->args[0] = cmd;
- mcl->args[1] = (unsigned long)uop;
- mcl->args[2] = count;
-}
-
-static inline void
-MULTI_update_va_mapping_otherdomain(struct multicall_entry *mcl, unsigned long va,
- pte_t new_val, unsigned long flags,
- domid_t domid)
-{
- mcl->op = __HYPERVISOR_update_va_mapping_otherdomain;
- mcl->args[0] = va;
- if (sizeof(new_val) == sizeof(long)) {
- mcl->args[1] = new_val.pte;
- mcl->args[2] = flags;
- mcl->args[3] = domid;
- } else {
- mcl->args[1] = new_val.pte;
- mcl->args[2] = new_val.pte >> 32;
- mcl->args[3] = flags;
- mcl->args[4] = domid;
- }
-}
-
-static inline void
-MULTI_update_descriptor(struct multicall_entry *mcl, u64 maddr,
- struct desc_struct desc)
-{
- mcl->op = __HYPERVISOR_update_descriptor;
- if (sizeof(maddr) == sizeof(long)) {
- mcl->args[0] = maddr;
- mcl->args[1] = *(unsigned long *)&desc;
- } else {
- mcl->args[0] = maddr;
- mcl->args[1] = maddr >> 32;
- mcl->args[2] = desc.a;
- mcl->args[3] = desc.b;
- }
-}
-
-static inline void
-MULTI_memory_op(struct multicall_entry *mcl, unsigned int cmd, void *arg)
-{
- mcl->op = __HYPERVISOR_memory_op;
- mcl->args[0] = cmd;
- mcl->args[1] = (unsigned long)arg;
-}
-
-static inline void
-MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req,
- int count, int *success_count, domid_t domid)
-{
- mcl->op = __HYPERVISOR_mmu_update;
- mcl->args[0] = (unsigned long)req;
- mcl->args[1] = count;
- mcl->args[2] = (unsigned long)success_count;
- mcl->args[3] = domid;
-}
-
-static inline void
-MULTI_mmuext_op(struct multicall_entry *mcl, struct mmuext_op *op, int count,
- int *success_count, domid_t domid)
-{
- mcl->op = __HYPERVISOR_mmuext_op;
- mcl->args[0] = (unsigned long)op;
- mcl->args[1] = count;
- mcl->args[2] = (unsigned long)success_count;
- mcl->args[3] = domid;
-}
-
-static inline void
-MULTI_set_gdt(struct multicall_entry *mcl, unsigned long *frames, int entries)
+static inline int
+HYPERVISOR_xenpmu_op(unsigned int op, void *arg)
{
- mcl->op = __HYPERVISOR_set_gdt;
- mcl->args[0] = (unsigned long)frames;
- mcl->args[1] = entries;
+ return _hypercall2(int, xenpmu_op, op, arg);
}
-static inline void
-MULTI_stack_switch(struct multicall_entry *mcl,
- unsigned long ss, unsigned long esp)
-{
- mcl->op = __HYPERVISOR_stack_switch;
- mcl->args[0] = ss;
- mcl->args[1] = esp;
+static inline int
+HYPERVISOR_dm_op(
+ domid_t dom, unsigned int nr_bufs, struct xen_dm_op_buf *bufs)
+{
+ int ret;
+ __xen_stac();
+ ret = _hypercall3(int, dm_op, dom, nr_bufs, bufs);
+ __xen_clac();
+ return ret;
}
#endif /* _ASM_X86_XEN_HYPERCALL_H */
diff --git a/arch/x86/include/asm/xen/hypervisor.h b/arch/x86/include/asm/xen/hypervisor.h
index 66d0fff1ee84..5fc35f889cd1 100644
--- a/arch/x86/include/asm/xen/hypervisor.h
+++ b/arch/x86/include/asm/xen/hypervisor.h
@@ -33,43 +33,34 @@
#ifndef _ASM_X86_XEN_HYPERVISOR_H
#define _ASM_X86_XEN_HYPERVISOR_H
-/* arch/i386/kernel/setup.c */
extern struct shared_info *HYPERVISOR_shared_info;
extern struct start_info *xen_start_info;
#include <asm/processor.h>
+#define XEN_SIGNATURE "XenVMMXenVMM"
+
static inline uint32_t xen_cpuid_base(void)
{
- uint32_t base, eax, ebx, ecx, edx;
- char signature[13];
-
- for (base = 0x40000000; base < 0x40010000; base += 0x100) {
- cpuid(base, &eax, &ebx, &ecx, &edx);
- *(uint32_t *)(signature + 0) = ebx;
- *(uint32_t *)(signature + 4) = ecx;
- *(uint32_t *)(signature + 8) = edx;
- signature[12] = 0;
-
- if (!strcmp("XenVMMXenVMM", signature) && ((eax - base) >= 2))
- return base;
- }
-
- return 0;
+ return hypervisor_cpuid_base(XEN_SIGNATURE, 2);
}
-#ifdef CONFIG_XEN
-extern bool xen_hvm_need_lapic(void);
+struct pci_dev;
-static inline bool xen_x2apic_para_available(void)
-{
- return xen_hvm_need_lapic();
-}
+#ifdef CONFIG_XEN_PV_DOM0
+bool xen_initdom_restore_msi(struct pci_dev *dev);
#else
-static inline bool xen_x2apic_para_available(void)
-{
- return (xen_cpuid_base() != 0);
-}
+static inline bool xen_initdom_restore_msi(struct pci_dev *dev) { return true; }
+#endif
+
+#ifdef CONFIG_HOTPLUG_CPU
+void xen_arch_register_cpu(int num);
+void xen_arch_unregister_cpu(int num);
+#endif
+
+#ifdef CONFIG_PVH
+void __init xen_pvh_init(struct boot_params *boot_params);
+void __init mem_map_via_hcall(struct boot_params *boot_params_p);
#endif
#endif /* _ASM_X86_XEN_HYPERVISOR_H */
diff --git a/arch/x86/include/asm/xen/interface.h b/arch/x86/include/asm/xen/interface.h
index 5d4922ad4b9b..baca0b00ef76 100644
--- a/arch/x86/include/asm/xen/interface.h
+++ b/arch/x86/include/asm/xen/interface.h
@@ -3,12 +3,38 @@
*
* Guest OS interface to x86 Xen.
*
- * Copyright (c) 2004, K A Fraser
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Copyright (c) 2004-2006, K A Fraser
*/
#ifndef _ASM_X86_XEN_INTERFACE_H
#define _ASM_X86_XEN_INTERFACE_H
+/*
+ * XEN_GUEST_HANDLE represents a guest pointer, when passed as a field
+ * in a struct in memory.
+ * XEN_GUEST_HANDLE_PARAM represent a guest pointer, when passed as an
+ * hypercall argument.
+ * XEN_GUEST_HANDLE_PARAM and XEN_GUEST_HANDLE are the same on X86 but
+ * they might not be on other architectures.
+ */
#ifdef __XEN__
#define __DEFINE_GUEST_HANDLE(name, type) \
typedef struct { type *p; } __guest_handle_ ## name
@@ -47,14 +73,26 @@
#endif
#ifndef __ASSEMBLY__
+/* Explicitly size integers that represent pfns in the public interface
+ * with Xen so that on ARM we can have one ABI that works for 32 and 64
+ * bit guests. */
+typedef unsigned long xen_pfn_t;
+#define PRI_xen_pfn "lx"
+typedef unsigned long xen_ulong_t;
+#define PRI_xen_ulong "lx"
+typedef long xen_long_t;
+#define PRI_xen_long "lx"
+
/* Guest handles for primitive C types. */
__DEFINE_GUEST_HANDLE(uchar, unsigned char);
__DEFINE_GUEST_HANDLE(uint, unsigned int);
-__DEFINE_GUEST_HANDLE(ulong, unsigned long);
DEFINE_GUEST_HANDLE(char);
DEFINE_GUEST_HANDLE(int);
-DEFINE_GUEST_HANDLE(long);
DEFINE_GUEST_HANDLE(void);
+DEFINE_GUEST_HANDLE(uint64_t);
+DEFINE_GUEST_HANDLE(uint32_t);
+DEFINE_GUEST_HANDLE(xen_pfn_t);
+DEFINE_GUEST_HANDLE(xen_ulong_t);
#endif
#ifndef HYPERVISOR_VIRT_START
@@ -76,13 +114,16 @@ DEFINE_GUEST_HANDLE(void);
* start of the GDT because some stupid OSes export hard-coded selector values
* in their ABI. These hard-coded values are always near the start of the GDT,
* so Xen places itself out of the way, at the far end of the GDT.
+ *
+ * NB The LDT is set using the MMUEXT_SET_LDT op of HYPERVISOR_mmuext_op
*/
#define FIRST_RESERVED_GDT_PAGE 14
#define FIRST_RESERVED_GDT_BYTE (FIRST_RESERVED_GDT_PAGE * 4096)
#define FIRST_RESERVED_GDT_ENTRY (FIRST_RESERVED_GDT_BYTE / 8)
/*
- * Send an array of these to HYPERVISOR_set_trap_table()
+ * Send an array of these to HYPERVISOR_set_trap_table().
+ * Terminate the array with a sentinel entry, with traps[].address==0.
* The privilege level specifies which modes may enter a trap via a software
* interrupt. On x86/64, since rings 1 and 2 are unavailable, we allocate
* privilege levels as follows:
@@ -106,30 +147,84 @@ struct trap_info {
DEFINE_GUEST_HANDLE_STRUCT(trap_info);
struct arch_shared_info {
- unsigned long max_pfn; /* max pfn that appears in table */
- /* Frame containing list of mfns containing list of mfns containing p2m. */
- unsigned long pfn_to_mfn_frame_list_list;
- unsigned long nmi_reason;
+ /*
+ * Number of valid entries in the p2m table(s) anchored at
+ * pfn_to_mfn_frame_list_list and/or p2m_vaddr.
+ */
+ unsigned long max_pfn;
+ /*
+ * Frame containing list of mfns containing list of mfns containing p2m.
+ * A value of 0 indicates it has not yet been set up, ~0 indicates it
+ * has been set to invalid e.g. due to the p2m being too large for the
+ * 3-level p2m tree. In this case the linear mapper p2m list anchored
+ * at p2m_vaddr is to be used.
+ */
+ xen_pfn_t pfn_to_mfn_frame_list_list;
+ unsigned long nmi_reason;
+ /*
+ * Following three fields are valid if p2m_cr3 contains a value
+ * different from 0.
+ * p2m_cr3 is the root of the address space where p2m_vaddr is valid.
+ * p2m_cr3 is in the same format as a cr3 value in the vcpu register
+ * state and holds the folded machine frame number (via xen_pfn_to_cr3)
+ * of a L3 or L4 page table.
+ * p2m_vaddr holds the virtual address of the linear p2m list. All
+ * entries in the range [0...max_pfn[ are accessible via this pointer.
+ * p2m_generation will be incremented by the guest before and after each
+ * change of the mappings of the p2m list. p2m_generation starts at 0
+ * and a value with the least significant bit set indicates that a
+ * mapping update is in progress. This allows guest external software
+ * (e.g. in Dom0) to verify that read mappings are consistent and
+ * whether they have changed since the last check.
+ * Modifying a p2m element in the linear p2m list is allowed via an
+ * atomic write only.
+ */
+ unsigned long p2m_cr3; /* cr3 value of the p2m address space */
+ unsigned long p2m_vaddr; /* virtual address of the p2m list */
+ unsigned long p2m_generation; /* generation count of p2m mapping */
+#ifdef CONFIG_X86_32
+ uint32_t wc_sec_hi;
+#endif
};
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_X86_32
-#include "interface_32.h"
+#include <asm/xen/interface_32.h>
#else
-#include "interface_64.h"
+#include <asm/xen/interface_64.h>
#endif
+#include <asm/pvclock-abi.h>
+
#ifndef __ASSEMBLY__
/*
* The following is all CPU context. Note that the fpu_ctxt block is filled
* in by FXSAVE if the CPU has feature FXSR; otherwise FSAVE is used.
+ *
+ * Also note that when calling DOMCTL_setvcpucontext and VCPU_initialise
+ * for HVM and PVH guests, not all information in this structure is updated:
+ *
+ * - For HVM guests, the structures read include: fpu_ctxt (if
+ * VGCT_I387_VALID is set), flags, user_regs, debugreg[*]
+ *
+ * - PVH guests are the same as HVM guests, but additionally use ctrlreg[3] to
+ * set cr3. All other fields not used should be set to 0.
*/
struct vcpu_guest_context {
/* FPU registers come first so they can be aligned for FXSAVE/FXRSTOR. */
struct { char x[512]; } fpu_ctxt; /* User-level FPU registers */
-#define VGCF_I387_VALID (1<<0)
-#define VGCF_HVM_GUEST (1<<1)
-#define VGCF_IN_KERNEL (1<<2)
+#define VGCF_I387_VALID (1<<0)
+#define VGCF_IN_KERNEL (1<<2)
+#define _VGCF_i387_valid 0
+#define VGCF_i387_valid (1<<_VGCF_i387_valid)
+#define _VGCF_in_kernel 2
+#define VGCF_in_kernel (1<<_VGCF_in_kernel)
+#define _VGCF_failsafe_disables_events 3
+#define VGCF_failsafe_disables_events (1<<_VGCF_failsafe_disables_events)
+#define _VGCF_syscall_disables_events 4
+#define VGCF_syscall_disables_events (1<<_VGCF_syscall_disables_events)
+#define _VGCF_online 5
+#define VGCF_online (1<<_VGCF_online)
unsigned long flags; /* VGCF_* flags */
struct cpu_user_regs user_regs; /* User-level CPU registers */
struct trap_info trap_ctxt[256]; /* Virtual IDT */
@@ -158,18 +253,138 @@ struct vcpu_guest_context {
#endif
};
DEFINE_GUEST_HANDLE_STRUCT(vcpu_guest_context);
+
+/* AMD PMU registers and structures */
+struct xen_pmu_amd_ctxt {
+ /*
+ * Offsets to counter and control MSRs (relative to xen_pmu_arch.c.amd).
+ * For PV(H) guests these fields are RO.
+ */
+ uint32_t counters;
+ uint32_t ctrls;
+
+ /* Counter MSRs */
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+ uint64_t regs[];
+#elif defined(__GNUC__)
+ uint64_t regs[0];
+#endif
+};
+
+/* Intel PMU registers and structures */
+struct xen_pmu_cntr_pair {
+ uint64_t counter;
+ uint64_t control;
+};
+
+struct xen_pmu_intel_ctxt {
+ /*
+ * Offsets to fixed and architectural counter MSRs (relative to
+ * xen_pmu_arch.c.intel).
+ * For PV(H) guests these fields are RO.
+ */
+ uint32_t fixed_counters;
+ uint32_t arch_counters;
+
+ /* PMU registers */
+ uint64_t global_ctrl;
+ uint64_t global_ovf_ctrl;
+ uint64_t global_status;
+ uint64_t fixed_ctrl;
+ uint64_t ds_area;
+ uint64_t pebs_enable;
+ uint64_t debugctl;
+
+ /* Fixed and architectural counter MSRs */
+#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
+ uint64_t regs[];
+#elif defined(__GNUC__)
+ uint64_t regs[0];
+#endif
+};
+
+/* Sampled domain's registers */
+struct xen_pmu_regs {
+ uint64_t ip;
+ uint64_t sp;
+ uint64_t flags;
+ uint16_t cs;
+ uint16_t ss;
+ uint8_t cpl;
+ uint8_t pad[3];
+};
+
+/* PMU flags */
+#define PMU_CACHED (1<<0) /* PMU MSRs are cached in the context */
+#define PMU_SAMPLE_USER (1<<1) /* Sample is from user or kernel mode */
+#define PMU_SAMPLE_REAL (1<<2) /* Sample is from realmode */
+#define PMU_SAMPLE_PV (1<<3) /* Sample from a PV guest */
+
+/*
+ * Architecture-specific information describing state of the processor at
+ * the time of PMU interrupt.
+ * Fields of this structure marked as RW for guest should only be written by
+ * the guest when PMU_CACHED bit in pmu_flags is set (which is done by the
+ * hypervisor during PMU interrupt). Hypervisor will read updated data in
+ * XENPMU_flush hypercall and clear PMU_CACHED bit.
+ */
+struct xen_pmu_arch {
+ union {
+ /*
+ * Processor's registers at the time of interrupt.
+ * WO for hypervisor, RO for guests.
+ */
+ struct xen_pmu_regs regs;
+ /*
+ * Padding for adding new registers to xen_pmu_regs in
+ * the future
+ */
+#define XENPMU_REGS_PAD_SZ 64
+ uint8_t pad[XENPMU_REGS_PAD_SZ];
+ } r;
+
+ /* WO for hypervisor, RO for guest */
+ uint64_t pmu_flags;
+
+ /*
+ * APIC LVTPC register.
+ * RW for both hypervisor and guest.
+ * Only APIC_LVT_MASKED bit is loaded by the hypervisor into hardware
+ * during XENPMU_flush or XENPMU_lvtpc_set.
+ */
+ union {
+ uint32_t lapic_lvtpc;
+ uint64_t pad;
+ } l;
+
+ /*
+ * Vendor-specific PMU registers.
+ * RW for both hypervisor and guest (see exceptions above).
+ * Guest's updates to this field are verified and then loaded by the
+ * hypervisor into hardware during XENPMU_flush
+ */
+ union {
+ struct xen_pmu_amd_ctxt amd;
+ struct xen_pmu_intel_ctxt intel;
+
+ /*
+ * Padding for contexts (fixed parts only, does not include
+ * MSR banks that are specified by offsets)
+ */
+#define XENPMU_CTXT_PAD_SZ 128
+ uint8_t pad[XENPMU_CTXT_PAD_SZ];
+ } c;
+};
+
#endif /* !__ASSEMBLY__ */
/*
* Prefix forces emulation of some non-trapping instructions.
* Currently only CPUID.
*/
-#ifdef __ASSEMBLY__
-#define XEN_EMULATE_PREFIX .byte 0x0f,0x0b,0x78,0x65,0x6e ;
-#define XEN_CPUID XEN_EMULATE_PREFIX cpuid
-#else
-#define XEN_EMULATE_PREFIX ".byte 0x0f,0x0b,0x78,0x65,0x6e ; "
-#define XEN_CPUID XEN_EMULATE_PREFIX "cpuid"
-#endif
+#include <asm/emulate_prefix.h>
+
+#define XEN_EMULATE_PREFIX __ASM_FORM(.byte __XEN_EMULATE_PREFIX ;)
+#define XEN_CPUID XEN_EMULATE_PREFIX __ASM_FORM(cpuid)
#endif /* _ASM_X86_XEN_INTERFACE_H */
diff --git a/arch/x86/include/asm/xen/interface_32.h b/arch/x86/include/asm/xen/interface_32.h
index 8413688b2571..dc40578abded 100644
--- a/arch/x86/include/asm/xen/interface_32.h
+++ b/arch/x86/include/asm/xen/interface_32.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/******************************************************************************
* arch-x86_32.h
*
diff --git a/arch/x86/include/asm/xen/interface_64.h b/arch/x86/include/asm/xen/interface_64.h
index 839a4811cf98..c599ec269a25 100644
--- a/arch/x86/include/asm/xen/interface_64.h
+++ b/arch/x86/include/asm/xen/interface_64.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_XEN_INTERFACE_64_H
#define _ASM_X86_XEN_INTERFACE_64_H
diff --git a/arch/x86/include/asm/xen/page.h b/arch/x86/include/asm/xen/page.h
index c61934fbf22a..fa9ec20783fa 100644
--- a/arch/x86/include/asm/xen/page.h
+++ b/arch/x86/include/asm/xen/page.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_XEN_PAGE_H
#define _ASM_X86_XEN_PAGE_H
@@ -6,12 +7,13 @@
#include <linux/spinlock.h>
#include <linux/pfn.h>
#include <linux/mm.h>
+#include <linux/device.h>
-#include <asm/uaccess.h>
+#include <asm/extable.h>
#include <asm/page.h>
-#include <asm/pgtable.h>
#include <xen/interface/xen.h>
+#include <xen/interface/grant_table.h>
#include <xen/features.h>
/* Xen machine address */
@@ -24,6 +26,15 @@ typedef struct xpaddr {
phys_addr_t paddr;
} xpaddr_t;
+#ifdef CONFIG_X86_64
+#define XEN_PHYSICAL_MASK __sme_clr((1UL << 52) - 1)
+#else
+#define XEN_PHYSICAL_MASK __PHYSICAL_MASK
+#endif
+
+#define XEN_PTE_MFN_MASK ((pteval_t)(((signed long)PAGE_MASK) & \
+ XEN_PHYSICAL_MASK))
+
#define XMADDR(x) ((xmaddr_t) { .maddr = (x) })
#define XPADDR(x) ((xpaddr_t) { .paddr = (x) })
@@ -34,35 +45,127 @@ typedef struct xpaddr {
#define FOREIGN_FRAME(m) ((m) | FOREIGN_FRAME_BIT)
#define IDENTITY_FRAME(m) ((m) | IDENTITY_FRAME_BIT)
-/* Maximum amount of memory we can handle in a domain in pages */
-#define MAX_DOMAIN_PAGES \
- ((unsigned long)((u64)CONFIG_XEN_MAX_DOMAIN_MEMORY * 1024 * 1024 * 1024 / PAGE_SIZE))
+#define P2M_PER_PAGE (PAGE_SIZE / sizeof(unsigned long))
extern unsigned long *machine_to_phys_mapping;
-extern unsigned int machine_to_phys_order;
+extern unsigned long machine_to_phys_nr;
+extern unsigned long *xen_p2m_addr;
+extern unsigned long xen_p2m_size;
+extern unsigned long xen_max_p2m_pfn;
+
+extern int xen_alloc_p2m_entry(unsigned long pfn);
extern unsigned long get_phys_to_machine(unsigned long pfn);
extern bool set_phys_to_machine(unsigned long pfn, unsigned long mfn);
extern bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn);
-extern unsigned long set_phys_range_identity(unsigned long pfn_s,
- unsigned long pfn_e);
+extern unsigned long __init set_phys_range_identity(unsigned long pfn_s,
+ unsigned long pfn_e);
+
+#ifdef CONFIG_XEN_PV
+extern int set_foreign_p2m_mapping(struct gnttab_map_grant_ref *map_ops,
+ struct gnttab_map_grant_ref *kmap_ops,
+ struct page **pages, unsigned int count);
+extern int clear_foreign_p2m_mapping(struct gnttab_unmap_grant_ref *unmap_ops,
+ struct gnttab_unmap_grant_ref *kunmap_ops,
+ struct page **pages, unsigned int count);
+#else
+static inline int
+set_foreign_p2m_mapping(struct gnttab_map_grant_ref *map_ops,
+ struct gnttab_map_grant_ref *kmap_ops,
+ struct page **pages, unsigned int count)
+{
+ return 0;
+}
+
+static inline int
+clear_foreign_p2m_mapping(struct gnttab_unmap_grant_ref *unmap_ops,
+ struct gnttab_unmap_grant_ref *kunmap_ops,
+ struct page **pages, unsigned int count)
+{
+ return 0;
+}
+#endif
+
+/*
+ * Helper functions to write or read unsigned long values to/from
+ * memory, when the access may fault.
+ */
+static inline int xen_safe_write_ulong(unsigned long *addr, unsigned long val)
+{
+ int ret = 0;
+
+ asm volatile("1: mov %[val], %[ptr]\n"
+ "2:\n"
+ _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_EFAULT_REG, %[ret])
+ : [ret] "+r" (ret), [ptr] "=m" (*addr)
+ : [val] "r" (val));
+
+ return ret;
+}
+
+static inline int xen_safe_read_ulong(const unsigned long *addr,
+ unsigned long *val)
+{
+ unsigned long rval = ~0ul;
+ int ret = 0;
+
+ asm volatile("1: mov %[ptr], %[rval]\n"
+ "2:\n"
+ _ASM_EXTABLE_TYPE_REG(1b, 2b, EX_TYPE_EFAULT_REG, %[ret])
+ : [ret] "+r" (ret), [rval] "+r" (rval)
+ : [ptr] "m" (*addr));
+ *val = rval;
+
+ return ret;
+}
+
+#ifdef CONFIG_XEN_PV
+/*
+ * When to use pfn_to_mfn(), __pfn_to_mfn() or get_phys_to_machine():
+ * - pfn_to_mfn() returns either INVALID_P2M_ENTRY or the mfn. No indicator
+ * bits (identity or foreign) are set.
+ * - __pfn_to_mfn() returns the found entry of the p2m table. A possibly set
+ * identity or foreign indicator will be still set. __pfn_to_mfn() is
+ * encapsulating get_phys_to_machine() which is called in special cases only.
+ * - get_phys_to_machine() is to be called by __pfn_to_mfn() only in special
+ * cases needing an extended handling.
+ */
+static inline unsigned long __pfn_to_mfn(unsigned long pfn)
+{
+ unsigned long mfn;
+
+ if (pfn < xen_p2m_size)
+ mfn = xen_p2m_addr[pfn];
+ else if (unlikely(pfn < xen_max_p2m_pfn))
+ return get_phys_to_machine(pfn);
+ else
+ return IDENTITY_FRAME(pfn);
-extern int m2p_add_override(unsigned long mfn, struct page *page);
-extern int m2p_remove_override(struct page *page);
-extern struct page *m2p_find_override(unsigned long mfn);
-extern unsigned long m2p_find_override_pfn(unsigned long mfn, unsigned long pfn);
+ if (unlikely(mfn == INVALID_P2M_ENTRY))
+ return get_phys_to_machine(pfn);
-#ifdef CONFIG_XEN_DEBUG_FS
-extern int p2m_dump_show(struct seq_file *m, void *v);
+ return mfn;
+}
+#else
+static inline unsigned long __pfn_to_mfn(unsigned long pfn)
+{
+ return pfn;
+}
#endif
+
static inline unsigned long pfn_to_mfn(unsigned long pfn)
{
unsigned long mfn;
+ /*
+ * Some x86 code are still using pfn_to_mfn instead of
+ * pfn_to_mfn. This will have to be removed when we figured
+ * out which call.
+ */
if (xen_feature(XENFEAT_auto_translated_physmap))
return pfn;
- mfn = get_phys_to_machine(pfn);
+ mfn = __pfn_to_mfn(pfn);
if (mfn != INVALID_P2M_ENTRY)
mfn &= ~(FOREIGN_FRAME_BIT | IDENTITY_FRAME_BIT);
@@ -75,49 +178,50 @@ static inline int phys_to_machine_mapping_valid(unsigned long pfn)
if (xen_feature(XENFEAT_auto_translated_physmap))
return 1;
- return get_phys_to_machine(pfn) != INVALID_P2M_ENTRY;
+ return __pfn_to_mfn(pfn) != INVALID_P2M_ENTRY;
}
-static inline unsigned long mfn_to_pfn(unsigned long mfn)
+static inline unsigned long mfn_to_pfn_no_overrides(unsigned long mfn)
{
unsigned long pfn;
- int ret = 0;
+ int ret;
- if (xen_feature(XENFEAT_auto_translated_physmap))
- return mfn;
+ if (unlikely(mfn >= machine_to_phys_nr))
+ return ~0;
- if (unlikely((mfn >> machine_to_phys_order) != 0)) {
- pfn = ~0;
- goto try_override;
- }
- pfn = 0;
/*
* The array access can fail (e.g., device space beyond end of RAM).
* In such cases it doesn't matter what we return (we return garbage),
* but we must handle the fault without crashing!
*/
- ret = __get_user(pfn, &machine_to_phys_mapping[mfn]);
-try_override:
- /* ret might be < 0 if there are no entries in the m2p for mfn */
+ ret = xen_safe_read_ulong(&machine_to_phys_mapping[mfn], &pfn);
if (ret < 0)
+ return ~0;
+
+ return pfn;
+}
+
+static inline unsigned long mfn_to_pfn(unsigned long mfn)
+{
+ unsigned long pfn;
+
+ /*
+ * Some x86 code are still using mfn_to_pfn instead of
+ * gfn_to_pfn. This will have to be removed when we figure
+ * out which call.
+ */
+ if (xen_feature(XENFEAT_auto_translated_physmap))
+ return mfn;
+
+ pfn = mfn_to_pfn_no_overrides(mfn);
+ if (__pfn_to_mfn(pfn) != mfn)
pfn = ~0;
- else if (get_phys_to_machine(pfn) != mfn)
- /*
- * If this appears to be a foreign mfn (because the pfn
- * doesn't map back to the mfn), then check the local override
- * table to see if there's a better pfn to use.
- *
- * m2p_find_override_pfn returns ~0 if it doesn't find anything.
- */
- pfn = m2p_find_override_pfn(mfn, ~0);
-
- /*
- * pfn is ~0 if there are no entries in the m2p for mfn or if the
- * entry doesn't map back to the mfn and m2p_override doesn't have a
- * valid entry for it.
+
+ /*
+ * pfn is ~0 if there are no entries in the m2p for mfn or the
+ * entry doesn't map back to the mfn.
*/
- if (pfn == ~0 &&
- get_phys_to_machine(mfn) == IDENTITY_FRAME(mfn))
+ if (pfn == ~0 && __pfn_to_mfn(mfn) == IDENTITY_FRAME(mfn))
pfn = mfn;
return pfn;
@@ -135,6 +239,27 @@ static inline xpaddr_t machine_to_phys(xmaddr_t machine)
return XPADDR(PFN_PHYS(mfn_to_pfn(PFN_DOWN(machine.maddr))) | offset);
}
+/* Pseudo-physical <-> Guest conversion */
+static inline unsigned long pfn_to_gfn(unsigned long pfn)
+{
+ if (xen_feature(XENFEAT_auto_translated_physmap))
+ return pfn;
+ else
+ return pfn_to_mfn(pfn);
+}
+
+static inline unsigned long gfn_to_pfn(unsigned long gfn)
+{
+ if (xen_feature(XENFEAT_auto_translated_physmap))
+ return gfn;
+ else
+ return mfn_to_pfn(gfn);
+}
+
+/* Pseudo-physical <-> Bus conversion */
+#define pfn_to_bfn(pfn) pfn_to_gfn(pfn)
+#define bfn_to_pfn(bfn) gfn_to_pfn(bfn)
+
/*
* We detect special mappings in one of two ways:
* 1. If the MFN is an I/O page then Xen will set the m2p entry
@@ -155,10 +280,15 @@ static inline xpaddr_t machine_to_phys(xmaddr_t machine)
* require. In all the cases we care about, the FOREIGN_FRAME bit is
* masked (e.g., pfn_to_mfn()) so behaviour there is correct.
*/
-static inline unsigned long mfn_to_local_pfn(unsigned long mfn)
+static inline unsigned long bfn_to_local_pfn(unsigned long mfn)
{
- unsigned long pfn = mfn_to_pfn(mfn);
- if (get_phys_to_machine(pfn) != mfn)
+ unsigned long pfn;
+
+ if (xen_feature(XENFEAT_auto_translated_physmap))
+ return mfn;
+
+ pfn = mfn_to_pfn(mfn);
+ if (__pfn_to_mfn(pfn) != mfn)
return -1; /* force !pfn_valid() */
return pfn;
}
@@ -169,9 +299,13 @@ static inline unsigned long mfn_to_local_pfn(unsigned long mfn)
#define virt_to_mfn(v) (pfn_to_mfn(virt_to_pfn(v)))
#define mfn_to_virt(m) (__va(mfn_to_pfn(m) << PAGE_SHIFT))
+/* VIRT <-> GUEST conversion */
+#define virt_to_gfn(v) (pfn_to_gfn(virt_to_pfn(v)))
+#define gfn_to_virt(g) (__va(gfn_to_pfn(g) << PAGE_SHIFT))
+
static inline unsigned long pte_mfn(pte_t pte)
{
- return (pte.pte & PTE_PFN_MASK) >> PAGE_SHIFT;
+ return (pte.pte & XEN_PTE_MFN_MASK) >> PAGE_SHIFT;
}
static inline pte_t mfn_pte(unsigned long page_nr, pgprot_t pgprot)
@@ -196,19 +330,28 @@ static inline pte_t __pte_ma(pteval_t x)
#define pmd_val_ma(v) ((v).pmd)
#ifdef __PAGETABLE_PUD_FOLDED
-#define pud_val_ma(v) ((v).pgd.pgd)
+#define pud_val_ma(v) ((v).p4d.pgd.pgd)
#else
#define pud_val_ma(v) ((v).pud)
#endif
#define __pmd_ma(x) ((pmd_t) { (x) } )
-#define pgd_val_ma(x) ((x).pgd)
-
-void xen_set_domain_pte(pte_t *ptep, pte_t pteval, unsigned domid);
+#ifdef __PAGETABLE_P4D_FOLDED
+#define p4d_val_ma(x) ((x).pgd.pgd)
+#else
+#define p4d_val_ma(x) ((x).p4d)
+#endif
xmaddr_t arbitrary_virt_to_machine(void *address);
unsigned long arbitrary_virt_to_mfn(void *vaddr);
void make_lowmem_page_readonly(void *vaddr);
void make_lowmem_page_readwrite(void *vaddr);
+static inline bool xen_arch_need_swiotlb(struct device *dev,
+ phys_addr_t phys,
+ dma_addr_t dev_addr)
+{
+ return false;
+}
+
#endif /* _ASM_X86_XEN_PAGE_H */
diff --git a/arch/x86/include/asm/xen/pci.h b/arch/x86/include/asm/xen/pci.h
index aa8620989162..9015b888edd6 100644
--- a/arch/x86/include/asm/xen/pci.h
+++ b/arch/x86/include/asm/xen/pci.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_XEN_PCI_H
#define _ASM_X86_XEN_PCI_H
@@ -13,11 +14,12 @@ static inline int pci_xen_hvm_init(void)
return -1;
}
#endif
-#if defined(CONFIG_XEN_DOM0)
-void __init xen_setup_pirqs(void);
+#ifdef CONFIG_XEN_PV_DOM0
+int __init pci_xen_initial_domain(void);
#else
-static inline void __init xen_setup_pirqs(void)
+static inline int __init pci_xen_initial_domain(void)
{
+ return -1;
}
#endif
@@ -40,7 +42,7 @@ static inline int xen_pci_frontend_enable_msi(struct pci_dev *dev,
{
if (xen_pci_frontend && xen_pci_frontend->enable_msi)
return xen_pci_frontend->enable_msi(dev, vectors);
- return -ENODEV;
+ return -ENOSYS;
}
static inline void xen_pci_frontend_disable_msi(struct pci_dev *dev)
{
@@ -52,7 +54,7 @@ static inline int xen_pci_frontend_enable_msix(struct pci_dev *dev,
{
if (xen_pci_frontend && xen_pci_frontend->enable_msix)
return xen_pci_frontend->enable_msix(dev, vectors, nvec);
- return -ENODEV;
+ return -ENOSYS;
}
static inline void xen_pci_frontend_disable_msix(struct pci_dev *dev)
{
diff --git a/arch/x86/include/asm/xen/swiotlb-xen.h b/arch/x86/include/asm/xen/swiotlb-xen.h
index 1be1ab7d6a41..77a2d19cc990 100644
--- a/arch/x86/include/asm/xen/swiotlb-xen.h
+++ b/arch/x86/include/asm/xen/swiotlb-xen.h
@@ -1,14 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_SWIOTLB_XEN_H
#define _ASM_X86_SWIOTLB_XEN_H
#ifdef CONFIG_SWIOTLB_XEN
-extern int xen_swiotlb;
-extern int __init pci_xen_swiotlb_detect(void);
-extern void __init pci_xen_swiotlb_init(void);
+extern int pci_xen_swiotlb_init_late(void);
#else
-#define xen_swiotlb (0)
-static inline int __init pci_xen_swiotlb_detect(void) { return 0; }
-static inline void __init pci_xen_swiotlb_init(void) { }
+static inline int pci_xen_swiotlb_init_late(void) { return -ENXIO; }
#endif
+int xen_swiotlb_fixup(void *buf, unsigned long nslabs);
+int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
+ unsigned int address_bits,
+ dma_addr_t *dma_handle);
+void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order);
+
#endif /* _ASM_X86_SWIOTLB_XEN_H */
diff --git a/arch/x86/include/asm/xen/trace_types.h b/arch/x86/include/asm/xen/trace_types.h
new file mode 100644
index 000000000000..2aad0abd68e2
--- /dev/null
+++ b/arch/x86/include/asm/xen/trace_types.h
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_XEN_TRACE_TYPES_H
+#define _ASM_XEN_TRACE_TYPES_H
+
+enum xen_mc_flush_reason {
+ XEN_MC_FL_NONE, /* explicit flush */
+ XEN_MC_FL_BATCH, /* out of hypercall space */
+ XEN_MC_FL_ARGS, /* out of argument space */
+ XEN_MC_FL_CALLBACK, /* out of callback space */
+};
+
+enum xen_mc_extend_args {
+ XEN_MC_XE_OK,
+ XEN_MC_XE_BAD_OP,
+ XEN_MC_XE_NO_SPACE
+};
+typedef void (*xen_mc_callback_fn_t)(void *);
+
+#endif /* _ASM_XEN_TRACE_TYPES_H */
diff --git a/arch/x86/include/asm/xor.h b/arch/x86/include/asm/xor.h
index 7fcf6f3dbcc3..7b0307acc410 100644
--- a/arch/x86/include/asm/xor.h
+++ b/arch/x86/include/asm/xor.h
@@ -1,10 +1,502 @@
-#ifdef CONFIG_KMEMCHECK
-/* kmemcheck doesn't handle MMX/SSE/SSE2 instructions */
-# include <asm-generic/xor.h>
-#else
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef _ASM_X86_XOR_H
+#define _ASM_X86_XOR_H
+
+/*
+ * Optimized RAID-5 checksumming functions for SSE.
+ */
+
+/*
+ * Cache avoiding checksumming functions utilizing KNI instructions
+ * Copyright (C) 1999 Zach Brown (with obvious credit due Ingo)
+ */
+
+/*
+ * Based on
+ * High-speed RAID5 checksumming functions utilizing SSE instructions.
+ * Copyright (C) 1998 Ingo Molnar.
+ */
+
+/*
+ * x86-64 changes / gcc fixes from Andi Kleen.
+ * Copyright 2002 Andi Kleen, SuSE Labs.
+ *
+ * This hasn't been optimized for the hammer yet, but there are likely
+ * no advantages to be gotten from x86-64 here anyways.
+ */
+
+#include <asm/fpu/api.h>
+
#ifdef CONFIG_X86_32
-# include "xor_32.h"
+/* reduce register pressure */
+# define XOR_CONSTANT_CONSTRAINT "i"
#else
-# include "xor_64.h"
+# define XOR_CONSTANT_CONSTRAINT "re"
#endif
+
+#define OFFS(x) "16*("#x")"
+#define PF_OFFS(x) "256+16*("#x")"
+#define PF0(x) " prefetchnta "PF_OFFS(x)"(%[p1]) ;\n"
+#define LD(x, y) " movaps "OFFS(x)"(%[p1]), %%xmm"#y" ;\n"
+#define ST(x, y) " movaps %%xmm"#y", "OFFS(x)"(%[p1]) ;\n"
+#define PF1(x) " prefetchnta "PF_OFFS(x)"(%[p2]) ;\n"
+#define PF2(x) " prefetchnta "PF_OFFS(x)"(%[p3]) ;\n"
+#define PF3(x) " prefetchnta "PF_OFFS(x)"(%[p4]) ;\n"
+#define PF4(x) " prefetchnta "PF_OFFS(x)"(%[p5]) ;\n"
+#define XO1(x, y) " xorps "OFFS(x)"(%[p2]), %%xmm"#y" ;\n"
+#define XO2(x, y) " xorps "OFFS(x)"(%[p3]), %%xmm"#y" ;\n"
+#define XO3(x, y) " xorps "OFFS(x)"(%[p4]), %%xmm"#y" ;\n"
+#define XO4(x, y) " xorps "OFFS(x)"(%[p5]), %%xmm"#y" ;\n"
+#define NOP(x)
+
+#define BLK64(pf, op, i) \
+ pf(i) \
+ op(i, 0) \
+ op(i + 1, 1) \
+ op(i + 2, 2) \
+ op(i + 3, 3)
+
+static void
+xor_sse_2(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2)
+{
+ unsigned long lines = bytes >> 8;
+
+ kernel_fpu_begin();
+
+ asm volatile(
+#undef BLOCK
+#define BLOCK(i) \
+ LD(i, 0) \
+ LD(i + 1, 1) \
+ PF1(i) \
+ PF1(i + 2) \
+ LD(i + 2, 2) \
+ LD(i + 3, 3) \
+ PF0(i + 4) \
+ PF0(i + 6) \
+ XO1(i, 0) \
+ XO1(i + 1, 1) \
+ XO1(i + 2, 2) \
+ XO1(i + 3, 3) \
+ ST(i, 0) \
+ ST(i + 1, 1) \
+ ST(i + 2, 2) \
+ ST(i + 3, 3) \
+
+
+ PF0(0)
+ PF0(2)
+
+ " .align 32 ;\n"
+ " 1: ;\n"
+
+ BLOCK(0)
+ BLOCK(4)
+ BLOCK(8)
+ BLOCK(12)
+
+ " add %[inc], %[p1] ;\n"
+ " add %[inc], %[p2] ;\n"
+ " dec %[cnt] ;\n"
+ " jnz 1b ;\n"
+ : [cnt] "+r" (lines),
+ [p1] "+r" (p1), [p2] "+r" (p2)
+ : [inc] XOR_CONSTANT_CONSTRAINT (256UL)
+ : "memory");
+
+ kernel_fpu_end();
+}
+
+static void
+xor_sse_2_pf64(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2)
+{
+ unsigned long lines = bytes >> 8;
+
+ kernel_fpu_begin();
+
+ asm volatile(
+#undef BLOCK
+#define BLOCK(i) \
+ BLK64(PF0, LD, i) \
+ BLK64(PF1, XO1, i) \
+ BLK64(NOP, ST, i) \
+
+ " .align 32 ;\n"
+ " 1: ;\n"
+
+ BLOCK(0)
+ BLOCK(4)
+ BLOCK(8)
+ BLOCK(12)
+
+ " add %[inc], %[p1] ;\n"
+ " add %[inc], %[p2] ;\n"
+ " dec %[cnt] ;\n"
+ " jnz 1b ;\n"
+ : [cnt] "+r" (lines),
+ [p1] "+r" (p1), [p2] "+r" (p2)
+ : [inc] XOR_CONSTANT_CONSTRAINT (256UL)
+ : "memory");
+
+ kernel_fpu_end();
+}
+
+static void
+xor_sse_3(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3)
+{
+ unsigned long lines = bytes >> 8;
+
+ kernel_fpu_begin();
+
+ asm volatile(
+#undef BLOCK
+#define BLOCK(i) \
+ PF1(i) \
+ PF1(i + 2) \
+ LD(i, 0) \
+ LD(i + 1, 1) \
+ LD(i + 2, 2) \
+ LD(i + 3, 3) \
+ PF2(i) \
+ PF2(i + 2) \
+ PF0(i + 4) \
+ PF0(i + 6) \
+ XO1(i, 0) \
+ XO1(i + 1, 1) \
+ XO1(i + 2, 2) \
+ XO1(i + 3, 3) \
+ XO2(i, 0) \
+ XO2(i + 1, 1) \
+ XO2(i + 2, 2) \
+ XO2(i + 3, 3) \
+ ST(i, 0) \
+ ST(i + 1, 1) \
+ ST(i + 2, 2) \
+ ST(i + 3, 3) \
+
+
+ PF0(0)
+ PF0(2)
+
+ " .align 32 ;\n"
+ " 1: ;\n"
+
+ BLOCK(0)
+ BLOCK(4)
+ BLOCK(8)
+ BLOCK(12)
+
+ " add %[inc], %[p1] ;\n"
+ " add %[inc], %[p2] ;\n"
+ " add %[inc], %[p3] ;\n"
+ " dec %[cnt] ;\n"
+ " jnz 1b ;\n"
+ : [cnt] "+r" (lines),
+ [p1] "+r" (p1), [p2] "+r" (p2), [p3] "+r" (p3)
+ : [inc] XOR_CONSTANT_CONSTRAINT (256UL)
+ : "memory");
+
+ kernel_fpu_end();
+}
+
+static void
+xor_sse_3_pf64(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3)
+{
+ unsigned long lines = bytes >> 8;
+
+ kernel_fpu_begin();
+
+ asm volatile(
+#undef BLOCK
+#define BLOCK(i) \
+ BLK64(PF0, LD, i) \
+ BLK64(PF1, XO1, i) \
+ BLK64(PF2, XO2, i) \
+ BLK64(NOP, ST, i) \
+
+ " .align 32 ;\n"
+ " 1: ;\n"
+
+ BLOCK(0)
+ BLOCK(4)
+ BLOCK(8)
+ BLOCK(12)
+
+ " add %[inc], %[p1] ;\n"
+ " add %[inc], %[p2] ;\n"
+ " add %[inc], %[p3] ;\n"
+ " dec %[cnt] ;\n"
+ " jnz 1b ;\n"
+ : [cnt] "+r" (lines),
+ [p1] "+r" (p1), [p2] "+r" (p2), [p3] "+r" (p3)
+ : [inc] XOR_CONSTANT_CONSTRAINT (256UL)
+ : "memory");
+
+ kernel_fpu_end();
+}
+
+static void
+xor_sse_4(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4)
+{
+ unsigned long lines = bytes >> 8;
+
+ kernel_fpu_begin();
+
+ asm volatile(
+#undef BLOCK
+#define BLOCK(i) \
+ PF1(i) \
+ PF1(i + 2) \
+ LD(i, 0) \
+ LD(i + 1, 1) \
+ LD(i + 2, 2) \
+ LD(i + 3, 3) \
+ PF2(i) \
+ PF2(i + 2) \
+ XO1(i, 0) \
+ XO1(i + 1, 1) \
+ XO1(i + 2, 2) \
+ XO1(i + 3, 3) \
+ PF3(i) \
+ PF3(i + 2) \
+ PF0(i + 4) \
+ PF0(i + 6) \
+ XO2(i, 0) \
+ XO2(i + 1, 1) \
+ XO2(i + 2, 2) \
+ XO2(i + 3, 3) \
+ XO3(i, 0) \
+ XO3(i + 1, 1) \
+ XO3(i + 2, 2) \
+ XO3(i + 3, 3) \
+ ST(i, 0) \
+ ST(i + 1, 1) \
+ ST(i + 2, 2) \
+ ST(i + 3, 3) \
+
+
+ PF0(0)
+ PF0(2)
+
+ " .align 32 ;\n"
+ " 1: ;\n"
+
+ BLOCK(0)
+ BLOCK(4)
+ BLOCK(8)
+ BLOCK(12)
+
+ " add %[inc], %[p1] ;\n"
+ " add %[inc], %[p2] ;\n"
+ " add %[inc], %[p3] ;\n"
+ " add %[inc], %[p4] ;\n"
+ " dec %[cnt] ;\n"
+ " jnz 1b ;\n"
+ : [cnt] "+r" (lines), [p1] "+r" (p1),
+ [p2] "+r" (p2), [p3] "+r" (p3), [p4] "+r" (p4)
+ : [inc] XOR_CONSTANT_CONSTRAINT (256UL)
+ : "memory");
+
+ kernel_fpu_end();
+}
+
+static void
+xor_sse_4_pf64(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4)
+{
+ unsigned long lines = bytes >> 8;
+
+ kernel_fpu_begin();
+
+ asm volatile(
+#undef BLOCK
+#define BLOCK(i) \
+ BLK64(PF0, LD, i) \
+ BLK64(PF1, XO1, i) \
+ BLK64(PF2, XO2, i) \
+ BLK64(PF3, XO3, i) \
+ BLK64(NOP, ST, i) \
+
+ " .align 32 ;\n"
+ " 1: ;\n"
+
+ BLOCK(0)
+ BLOCK(4)
+ BLOCK(8)
+ BLOCK(12)
+
+ " add %[inc], %[p1] ;\n"
+ " add %[inc], %[p2] ;\n"
+ " add %[inc], %[p3] ;\n"
+ " add %[inc], %[p4] ;\n"
+ " dec %[cnt] ;\n"
+ " jnz 1b ;\n"
+ : [cnt] "+r" (lines), [p1] "+r" (p1),
+ [p2] "+r" (p2), [p3] "+r" (p3), [p4] "+r" (p4)
+ : [inc] XOR_CONSTANT_CONSTRAINT (256UL)
+ : "memory");
+
+ kernel_fpu_end();
+}
+
+static void
+xor_sse_5(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4,
+ const unsigned long * __restrict p5)
+{
+ unsigned long lines = bytes >> 8;
+
+ kernel_fpu_begin();
+
+ asm volatile(
+#undef BLOCK
+#define BLOCK(i) \
+ PF1(i) \
+ PF1(i + 2) \
+ LD(i, 0) \
+ LD(i + 1, 1) \
+ LD(i + 2, 2) \
+ LD(i + 3, 3) \
+ PF2(i) \
+ PF2(i + 2) \
+ XO1(i, 0) \
+ XO1(i + 1, 1) \
+ XO1(i + 2, 2) \
+ XO1(i + 3, 3) \
+ PF3(i) \
+ PF3(i + 2) \
+ XO2(i, 0) \
+ XO2(i + 1, 1) \
+ XO2(i + 2, 2) \
+ XO2(i + 3, 3) \
+ PF4(i) \
+ PF4(i + 2) \
+ PF0(i + 4) \
+ PF0(i + 6) \
+ XO3(i, 0) \
+ XO3(i + 1, 1) \
+ XO3(i + 2, 2) \
+ XO3(i + 3, 3) \
+ XO4(i, 0) \
+ XO4(i + 1, 1) \
+ XO4(i + 2, 2) \
+ XO4(i + 3, 3) \
+ ST(i, 0) \
+ ST(i + 1, 1) \
+ ST(i + 2, 2) \
+ ST(i + 3, 3) \
+
+
+ PF0(0)
+ PF0(2)
+
+ " .align 32 ;\n"
+ " 1: ;\n"
+
+ BLOCK(0)
+ BLOCK(4)
+ BLOCK(8)
+ BLOCK(12)
+
+ " add %[inc], %[p1] ;\n"
+ " add %[inc], %[p2] ;\n"
+ " add %[inc], %[p3] ;\n"
+ " add %[inc], %[p4] ;\n"
+ " add %[inc], %[p5] ;\n"
+ " dec %[cnt] ;\n"
+ " jnz 1b ;\n"
+ : [cnt] "+r" (lines), [p1] "+r" (p1), [p2] "+r" (p2),
+ [p3] "+r" (p3), [p4] "+r" (p4), [p5] "+r" (p5)
+ : [inc] XOR_CONSTANT_CONSTRAINT (256UL)
+ : "memory");
+
+ kernel_fpu_end();
+}
+
+static void
+xor_sse_5_pf64(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4,
+ const unsigned long * __restrict p5)
+{
+ unsigned long lines = bytes >> 8;
+
+ kernel_fpu_begin();
+
+ asm volatile(
+#undef BLOCK
+#define BLOCK(i) \
+ BLK64(PF0, LD, i) \
+ BLK64(PF1, XO1, i) \
+ BLK64(PF2, XO2, i) \
+ BLK64(PF3, XO3, i) \
+ BLK64(PF4, XO4, i) \
+ BLK64(NOP, ST, i) \
+
+ " .align 32 ;\n"
+ " 1: ;\n"
+
+ BLOCK(0)
+ BLOCK(4)
+ BLOCK(8)
+ BLOCK(12)
+
+ " add %[inc], %[p1] ;\n"
+ " add %[inc], %[p2] ;\n"
+ " add %[inc], %[p3] ;\n"
+ " add %[inc], %[p4] ;\n"
+ " add %[inc], %[p5] ;\n"
+ " dec %[cnt] ;\n"
+ " jnz 1b ;\n"
+ : [cnt] "+r" (lines), [p1] "+r" (p1), [p2] "+r" (p2),
+ [p3] "+r" (p3), [p4] "+r" (p4), [p5] "+r" (p5)
+ : [inc] XOR_CONSTANT_CONSTRAINT (256UL)
+ : "memory");
+
+ kernel_fpu_end();
+}
+
+static struct xor_block_template xor_block_sse_pf64 = {
+ .name = "prefetch64-sse",
+ .do_2 = xor_sse_2_pf64,
+ .do_3 = xor_sse_3_pf64,
+ .do_4 = xor_sse_4_pf64,
+ .do_5 = xor_sse_5_pf64,
+};
+
+#undef LD
+#undef XO1
+#undef XO2
+#undef XO3
+#undef XO4
+#undef ST
+#undef NOP
+#undef BLK64
+#undef BLOCK
+
+#undef XOR_CONSTANT_CONSTRAINT
+
+#ifdef CONFIG_X86_32
+# include <asm/xor_32.h>
+#else
+# include <asm/xor_64.h>
#endif
+
+#define XOR_SELECT_TEMPLATE(FASTEST) \
+ AVX_SELECT(FASTEST)
+
+#endif /* _ASM_X86_XOR_H */
diff --git a/arch/x86/include/asm/xor_32.h b/arch/x86/include/asm/xor_32.h
index 133b40a0f495..7a6b9474591e 100644
--- a/arch/x86/include/asm/xor_32.h
+++ b/arch/x86/include/asm/xor_32.h
@@ -1,17 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _ASM_X86_XOR_32_H
#define _ASM_X86_XOR_32_H
/*
- * Optimized RAID-5 checksumming functions for MMX and SSE.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * You should have received a copy of the GNU General Public License
- * (for example /usr/src/linux/COPYING); if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * Optimized RAID-5 checksumming functions for MMX.
*/
/*
@@ -26,10 +18,11 @@
#define XO3(x, y) " pxor 8*("#x")(%4), %%mm"#y" ;\n"
#define XO4(x, y) " pxor 8*("#x")(%5), %%mm"#y" ;\n"
-#include <asm/i387.h>
+#include <asm/fpu/api.h>
static void
-xor_pII_mmx_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
+xor_pII_mmx_2(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2)
{
unsigned long lines = bytes >> 7;
@@ -72,8 +65,9 @@ xor_pII_mmx_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
}
static void
-xor_pII_mmx_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3)
+xor_pII_mmx_3(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3)
{
unsigned long lines = bytes >> 7;
@@ -121,8 +115,10 @@ xor_pII_mmx_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
}
static void
-xor_pII_mmx_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3, unsigned long *p4)
+xor_pII_mmx_4(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4)
{
unsigned long lines = bytes >> 7;
@@ -176,8 +172,11 @@ xor_pII_mmx_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
static void
-xor_pII_mmx_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3, unsigned long *p4, unsigned long *p5)
+xor_pII_mmx_5(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4,
+ const unsigned long * __restrict p5)
{
unsigned long lines = bytes >> 7;
@@ -256,7 +255,8 @@ xor_pII_mmx_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
#undef BLOCK
static void
-xor_p5_mmx_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
+xor_p5_mmx_2(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2)
{
unsigned long lines = bytes >> 6;
@@ -303,8 +303,9 @@ xor_p5_mmx_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
}
static void
-xor_p5_mmx_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3)
+xor_p5_mmx_3(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3)
{
unsigned long lines = bytes >> 6;
@@ -360,8 +361,10 @@ xor_p5_mmx_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
}
static void
-xor_p5_mmx_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3, unsigned long *p4)
+xor_p5_mmx_4(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4)
{
unsigned long lines = bytes >> 6;
@@ -426,8 +429,11 @@ xor_p5_mmx_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
}
static void
-xor_p5_mmx_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3, unsigned long *p4, unsigned long *p5)
+xor_p5_mmx_5(unsigned long bytes, unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4,
+ const unsigned long * __restrict p5)
{
unsigned long lines = bytes >> 6;
@@ -529,330 +535,6 @@ static struct xor_block_template xor_block_p5_mmx = {
.do_5 = xor_p5_mmx_5,
};
-/*
- * Cache avoiding checksumming functions utilizing KNI instructions
- * Copyright (C) 1999 Zach Brown (with obvious credit due Ingo)
- */
-
-#define XMMS_SAVE \
-do { \
- preempt_disable(); \
- cr0 = read_cr0(); \
- clts(); \
- asm volatile( \
- "movups %%xmm0,(%0) ;\n\t" \
- "movups %%xmm1,0x10(%0) ;\n\t" \
- "movups %%xmm2,0x20(%0) ;\n\t" \
- "movups %%xmm3,0x30(%0) ;\n\t" \
- : \
- : "r" (xmm_save) \
- : "memory"); \
-} while (0)
-
-#define XMMS_RESTORE \
-do { \
- asm volatile( \
- "sfence ;\n\t" \
- "movups (%0),%%xmm0 ;\n\t" \
- "movups 0x10(%0),%%xmm1 ;\n\t" \
- "movups 0x20(%0),%%xmm2 ;\n\t" \
- "movups 0x30(%0),%%xmm3 ;\n\t" \
- : \
- : "r" (xmm_save) \
- : "memory"); \
- write_cr0(cr0); \
- preempt_enable(); \
-} while (0)
-
-#define ALIGN16 __attribute__((aligned(16)))
-
-#define OFFS(x) "16*("#x")"
-#define PF_OFFS(x) "256+16*("#x")"
-#define PF0(x) " prefetchnta "PF_OFFS(x)"(%1) ;\n"
-#define LD(x, y) " movaps "OFFS(x)"(%1), %%xmm"#y" ;\n"
-#define ST(x, y) " movaps %%xmm"#y", "OFFS(x)"(%1) ;\n"
-#define PF1(x) " prefetchnta "PF_OFFS(x)"(%2) ;\n"
-#define PF2(x) " prefetchnta "PF_OFFS(x)"(%3) ;\n"
-#define PF3(x) " prefetchnta "PF_OFFS(x)"(%4) ;\n"
-#define PF4(x) " prefetchnta "PF_OFFS(x)"(%5) ;\n"
-#define PF5(x) " prefetchnta "PF_OFFS(x)"(%6) ;\n"
-#define XO1(x, y) " xorps "OFFS(x)"(%2), %%xmm"#y" ;\n"
-#define XO2(x, y) " xorps "OFFS(x)"(%3), %%xmm"#y" ;\n"
-#define XO3(x, y) " xorps "OFFS(x)"(%4), %%xmm"#y" ;\n"
-#define XO4(x, y) " xorps "OFFS(x)"(%5), %%xmm"#y" ;\n"
-#define XO5(x, y) " xorps "OFFS(x)"(%6), %%xmm"#y" ;\n"
-
-
-static void
-xor_sse_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
-{
- unsigned long lines = bytes >> 8;
- char xmm_save[16*4] ALIGN16;
- int cr0;
-
- XMMS_SAVE;
-
- asm volatile(
-#undef BLOCK
-#define BLOCK(i) \
- LD(i, 0) \
- LD(i + 1, 1) \
- PF1(i) \
- PF1(i + 2) \
- LD(i + 2, 2) \
- LD(i + 3, 3) \
- PF0(i + 4) \
- PF0(i + 6) \
- XO1(i, 0) \
- XO1(i + 1, 1) \
- XO1(i + 2, 2) \
- XO1(i + 3, 3) \
- ST(i, 0) \
- ST(i + 1, 1) \
- ST(i + 2, 2) \
- ST(i + 3, 3) \
-
-
- PF0(0)
- PF0(2)
-
- " .align 32 ;\n"
- " 1: ;\n"
-
- BLOCK(0)
- BLOCK(4)
- BLOCK(8)
- BLOCK(12)
-
- " addl $256, %1 ;\n"
- " addl $256, %2 ;\n"
- " decl %0 ;\n"
- " jnz 1b ;\n"
- : "+r" (lines),
- "+r" (p1), "+r" (p2)
- :
- : "memory");
-
- XMMS_RESTORE;
-}
-
-static void
-xor_sse_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3)
-{
- unsigned long lines = bytes >> 8;
- char xmm_save[16*4] ALIGN16;
- int cr0;
-
- XMMS_SAVE;
-
- asm volatile(
-#undef BLOCK
-#define BLOCK(i) \
- PF1(i) \
- PF1(i + 2) \
- LD(i,0) \
- LD(i + 1, 1) \
- LD(i + 2, 2) \
- LD(i + 3, 3) \
- PF2(i) \
- PF2(i + 2) \
- PF0(i + 4) \
- PF0(i + 6) \
- XO1(i,0) \
- XO1(i + 1, 1) \
- XO1(i + 2, 2) \
- XO1(i + 3, 3) \
- XO2(i,0) \
- XO2(i + 1, 1) \
- XO2(i + 2, 2) \
- XO2(i + 3, 3) \
- ST(i,0) \
- ST(i + 1, 1) \
- ST(i + 2, 2) \
- ST(i + 3, 3) \
-
-
- PF0(0)
- PF0(2)
-
- " .align 32 ;\n"
- " 1: ;\n"
-
- BLOCK(0)
- BLOCK(4)
- BLOCK(8)
- BLOCK(12)
-
- " addl $256, %1 ;\n"
- " addl $256, %2 ;\n"
- " addl $256, %3 ;\n"
- " decl %0 ;\n"
- " jnz 1b ;\n"
- : "+r" (lines),
- "+r" (p1), "+r"(p2), "+r"(p3)
- :
- : "memory" );
-
- XMMS_RESTORE;
-}
-
-static void
-xor_sse_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3, unsigned long *p4)
-{
- unsigned long lines = bytes >> 8;
- char xmm_save[16*4] ALIGN16;
- int cr0;
-
- XMMS_SAVE;
-
- asm volatile(
-#undef BLOCK
-#define BLOCK(i) \
- PF1(i) \
- PF1(i + 2) \
- LD(i,0) \
- LD(i + 1, 1) \
- LD(i + 2, 2) \
- LD(i + 3, 3) \
- PF2(i) \
- PF2(i + 2) \
- XO1(i,0) \
- XO1(i + 1, 1) \
- XO1(i + 2, 2) \
- XO1(i + 3, 3) \
- PF3(i) \
- PF3(i + 2) \
- PF0(i + 4) \
- PF0(i + 6) \
- XO2(i,0) \
- XO2(i + 1, 1) \
- XO2(i + 2, 2) \
- XO2(i + 3, 3) \
- XO3(i,0) \
- XO3(i + 1, 1) \
- XO3(i + 2, 2) \
- XO3(i + 3, 3) \
- ST(i,0) \
- ST(i + 1, 1) \
- ST(i + 2, 2) \
- ST(i + 3, 3) \
-
-
- PF0(0)
- PF0(2)
-
- " .align 32 ;\n"
- " 1: ;\n"
-
- BLOCK(0)
- BLOCK(4)
- BLOCK(8)
- BLOCK(12)
-
- " addl $256, %1 ;\n"
- " addl $256, %2 ;\n"
- " addl $256, %3 ;\n"
- " addl $256, %4 ;\n"
- " decl %0 ;\n"
- " jnz 1b ;\n"
- : "+r" (lines),
- "+r" (p1), "+r" (p2), "+r" (p3), "+r" (p4)
- :
- : "memory" );
-
- XMMS_RESTORE;
-}
-
-static void
-xor_sse_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3, unsigned long *p4, unsigned long *p5)
-{
- unsigned long lines = bytes >> 8;
- char xmm_save[16*4] ALIGN16;
- int cr0;
-
- XMMS_SAVE;
-
- /* Make sure GCC forgets anything it knows about p4 or p5,
- such that it won't pass to the asm volatile below a
- register that is shared with any other variable. That's
- because we modify p4 and p5 there, but we can't mark them
- as read/write, otherwise we'd overflow the 10-asm-operands
- limit of GCC < 3.1. */
- asm("" : "+r" (p4), "+r" (p5));
-
- asm volatile(
-#undef BLOCK
-#define BLOCK(i) \
- PF1(i) \
- PF1(i + 2) \
- LD(i,0) \
- LD(i + 1, 1) \
- LD(i + 2, 2) \
- LD(i + 3, 3) \
- PF2(i) \
- PF2(i + 2) \
- XO1(i,0) \
- XO1(i + 1, 1) \
- XO1(i + 2, 2) \
- XO1(i + 3, 3) \
- PF3(i) \
- PF3(i + 2) \
- XO2(i,0) \
- XO2(i + 1, 1) \
- XO2(i + 2, 2) \
- XO2(i + 3, 3) \
- PF4(i) \
- PF4(i + 2) \
- PF0(i + 4) \
- PF0(i + 6) \
- XO3(i,0) \
- XO3(i + 1, 1) \
- XO3(i + 2, 2) \
- XO3(i + 3, 3) \
- XO4(i,0) \
- XO4(i + 1, 1) \
- XO4(i + 2, 2) \
- XO4(i + 3, 3) \
- ST(i,0) \
- ST(i + 1, 1) \
- ST(i + 2, 2) \
- ST(i + 3, 3) \
-
-
- PF0(0)
- PF0(2)
-
- " .align 32 ;\n"
- " 1: ;\n"
-
- BLOCK(0)
- BLOCK(4)
- BLOCK(8)
- BLOCK(12)
-
- " addl $256, %1 ;\n"
- " addl $256, %2 ;\n"
- " addl $256, %3 ;\n"
- " addl $256, %4 ;\n"
- " addl $256, %5 ;\n"
- " decl %0 ;\n"
- " jnz 1b ;\n"
- : "+r" (lines),
- "+r" (p1), "+r" (p2), "+r" (p3)
- : "r" (p4), "r" (p5)
- : "memory");
-
- /* p4 and p5 were modified, and now the variables are dead.
- Clobber them just to be sure nobody does something stupid
- like assuming they have some legal value. */
- asm("" : "=r" (p4), "=r" (p5));
-
- XMMS_RESTORE;
-}
-
static struct xor_block_template xor_block_pIII_sse = {
.name = "pIII_sse",
.do_2 = xor_sse_2,
@@ -861,28 +543,31 @@ static struct xor_block_template xor_block_pIII_sse = {
.do_5 = xor_sse_5,
};
+/* Also try the AVX routines */
+#include <asm/xor_avx.h>
+
/* Also try the generic routines. */
#include <asm-generic/xor.h>
+/* We force the use of the SSE xor block because it can write around L2.
+ We may also be able to load into the L1 only depending on how the cpu
+ deals with a load to a line that is being prefetched. */
#undef XOR_TRY_TEMPLATES
#define XOR_TRY_TEMPLATES \
do { \
- xor_speed(&xor_block_8regs); \
- xor_speed(&xor_block_8regs_p); \
- xor_speed(&xor_block_32regs); \
- xor_speed(&xor_block_32regs_p); \
- if (cpu_has_xmm) \
+ AVX_XOR_SPEED; \
+ if (boot_cpu_has(X86_FEATURE_XMM)) { \
xor_speed(&xor_block_pIII_sse); \
- if (cpu_has_mmx) { \
+ xor_speed(&xor_block_sse_pf64); \
+ } else if (boot_cpu_has(X86_FEATURE_MMX)) { \
xor_speed(&xor_block_pII_mmx); \
xor_speed(&xor_block_p5_mmx); \
+ } else { \
+ xor_speed(&xor_block_8regs); \
+ xor_speed(&xor_block_8regs_p); \
+ xor_speed(&xor_block_32regs); \
+ xor_speed(&xor_block_32regs_p); \
} \
} while (0)
-/* We force the use of the SSE xor block because it can write around L2.
- We may also be able to load into the L1 only depending on how the cpu
- deals with a load to a line that is being prefetched. */
-#define XOR_SELECT_TEMPLATE(FASTEST) \
- (cpu_has_xmm ? &xor_block_pIII_sse : FASTEST)
-
#endif /* _ASM_X86_XOR_32_H */
diff --git a/arch/x86/include/asm/xor_64.h b/arch/x86/include/asm/xor_64.h
index 1549b5e261f6..0307e4ec5044 100644
--- a/arch/x86/include/asm/xor_64.h
+++ b/arch/x86/include/asm/xor_64.h
@@ -1,344 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_X86_XOR_64_H
#define _ASM_X86_XOR_64_H
-/*
- * Optimized RAID-5 checksumming functions for MMX and SSE.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * You should have received a copy of the GNU General Public License
- * (for example /usr/src/linux/COPYING); if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
-/*
- * Cache avoiding checksumming functions utilizing KNI instructions
- * Copyright (C) 1999 Zach Brown (with obvious credit due Ingo)
- */
-
-/*
- * Based on
- * High-speed RAID5 checksumming functions utilizing SSE instructions.
- * Copyright (C) 1998 Ingo Molnar.
- */
-
-/*
- * x86-64 changes / gcc fixes from Andi Kleen.
- * Copyright 2002 Andi Kleen, SuSE Labs.
- *
- * This hasn't been optimized for the hammer yet, but there are likely
- * no advantages to be gotten from x86-64 here anyways.
- */
-
-typedef struct {
- unsigned long a, b;
-} __attribute__((aligned(16))) xmm_store_t;
-
-/* Doesn't use gcc to save the XMM registers, because there is no easy way to
- tell it to do a clts before the register saving. */
-#define XMMS_SAVE \
-do { \
- preempt_disable(); \
- asm volatile( \
- "movq %%cr0,%0 ;\n\t" \
- "clts ;\n\t" \
- "movups %%xmm0,(%1) ;\n\t" \
- "movups %%xmm1,0x10(%1) ;\n\t" \
- "movups %%xmm2,0x20(%1) ;\n\t" \
- "movups %%xmm3,0x30(%1) ;\n\t" \
- : "=&r" (cr0) \
- : "r" (xmm_save) \
- : "memory"); \
-} while (0)
-
-#define XMMS_RESTORE \
-do { \
- asm volatile( \
- "sfence ;\n\t" \
- "movups (%1),%%xmm0 ;\n\t" \
- "movups 0x10(%1),%%xmm1 ;\n\t" \
- "movups 0x20(%1),%%xmm2 ;\n\t" \
- "movups 0x30(%1),%%xmm3 ;\n\t" \
- "movq %0,%%cr0 ;\n\t" \
- : \
- : "r" (cr0), "r" (xmm_save) \
- : "memory"); \
- preempt_enable(); \
-} while (0)
-
-#define OFFS(x) "16*("#x")"
-#define PF_OFFS(x) "256+16*("#x")"
-#define PF0(x) " prefetchnta "PF_OFFS(x)"(%[p1]) ;\n"
-#define LD(x, y) " movaps "OFFS(x)"(%[p1]), %%xmm"#y" ;\n"
-#define ST(x, y) " movaps %%xmm"#y", "OFFS(x)"(%[p1]) ;\n"
-#define PF1(x) " prefetchnta "PF_OFFS(x)"(%[p2]) ;\n"
-#define PF2(x) " prefetchnta "PF_OFFS(x)"(%[p3]) ;\n"
-#define PF3(x) " prefetchnta "PF_OFFS(x)"(%[p4]) ;\n"
-#define PF4(x) " prefetchnta "PF_OFFS(x)"(%[p5]) ;\n"
-#define PF5(x) " prefetchnta "PF_OFFS(x)"(%[p6]) ;\n"
-#define XO1(x, y) " xorps "OFFS(x)"(%[p2]), %%xmm"#y" ;\n"
-#define XO2(x, y) " xorps "OFFS(x)"(%[p3]), %%xmm"#y" ;\n"
-#define XO3(x, y) " xorps "OFFS(x)"(%[p4]), %%xmm"#y" ;\n"
-#define XO4(x, y) " xorps "OFFS(x)"(%[p5]), %%xmm"#y" ;\n"
-#define XO5(x, y) " xorps "OFFS(x)"(%[p6]), %%xmm"#y" ;\n"
-
-
-static void
-xor_sse_2(unsigned long bytes, unsigned long *p1, unsigned long *p2)
-{
- unsigned int lines = bytes >> 8;
- unsigned long cr0;
- xmm_store_t xmm_save[4];
-
- XMMS_SAVE;
-
- asm volatile(
-#undef BLOCK
-#define BLOCK(i) \
- LD(i, 0) \
- LD(i + 1, 1) \
- PF1(i) \
- PF1(i + 2) \
- LD(i + 2, 2) \
- LD(i + 3, 3) \
- PF0(i + 4) \
- PF0(i + 6) \
- XO1(i, 0) \
- XO1(i + 1, 1) \
- XO1(i + 2, 2) \
- XO1(i + 3, 3) \
- ST(i, 0) \
- ST(i + 1, 1) \
- ST(i + 2, 2) \
- ST(i + 3, 3) \
-
-
- PF0(0)
- PF0(2)
-
- " .align 32 ;\n"
- " 1: ;\n"
-
- BLOCK(0)
- BLOCK(4)
- BLOCK(8)
- BLOCK(12)
-
- " addq %[inc], %[p1] ;\n"
- " addq %[inc], %[p2] ;\n"
- " decl %[cnt] ; jnz 1b"
- : [p1] "+r" (p1), [p2] "+r" (p2), [cnt] "+r" (lines)
- : [inc] "r" (256UL)
- : "memory");
-
- XMMS_RESTORE;
-}
-
-static void
-xor_sse_3(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3)
-{
- unsigned int lines = bytes >> 8;
- xmm_store_t xmm_save[4];
- unsigned long cr0;
-
- XMMS_SAVE;
-
- asm volatile(
-#undef BLOCK
-#define BLOCK(i) \
- PF1(i) \
- PF1(i + 2) \
- LD(i, 0) \
- LD(i + 1, 1) \
- LD(i + 2, 2) \
- LD(i + 3, 3) \
- PF2(i) \
- PF2(i + 2) \
- PF0(i + 4) \
- PF0(i + 6) \
- XO1(i, 0) \
- XO1(i + 1, 1) \
- XO1(i + 2, 2) \
- XO1(i + 3, 3) \
- XO2(i, 0) \
- XO2(i + 1, 1) \
- XO2(i + 2, 2) \
- XO2(i + 3, 3) \
- ST(i, 0) \
- ST(i + 1, 1) \
- ST(i + 2, 2) \
- ST(i + 3, 3) \
-
-
- PF0(0)
- PF0(2)
-
- " .align 32 ;\n"
- " 1: ;\n"
-
- BLOCK(0)
- BLOCK(4)
- BLOCK(8)
- BLOCK(12)
-
- " addq %[inc], %[p1] ;\n"
- " addq %[inc], %[p2] ;\n"
- " addq %[inc], %[p3] ;\n"
- " decl %[cnt] ; jnz 1b"
- : [cnt] "+r" (lines),
- [p1] "+r" (p1), [p2] "+r" (p2), [p3] "+r" (p3)
- : [inc] "r" (256UL)
- : "memory");
- XMMS_RESTORE;
-}
-
-static void
-xor_sse_4(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3, unsigned long *p4)
-{
- unsigned int lines = bytes >> 8;
- xmm_store_t xmm_save[4];
- unsigned long cr0;
-
- XMMS_SAVE;
-
- asm volatile(
-#undef BLOCK
-#define BLOCK(i) \
- PF1(i) \
- PF1(i + 2) \
- LD(i, 0) \
- LD(i + 1, 1) \
- LD(i + 2, 2) \
- LD(i + 3, 3) \
- PF2(i) \
- PF2(i + 2) \
- XO1(i, 0) \
- XO1(i + 1, 1) \
- XO1(i + 2, 2) \
- XO1(i + 3, 3) \
- PF3(i) \
- PF3(i + 2) \
- PF0(i + 4) \
- PF0(i + 6) \
- XO2(i, 0) \
- XO2(i + 1, 1) \
- XO2(i + 2, 2) \
- XO2(i + 3, 3) \
- XO3(i, 0) \
- XO3(i + 1, 1) \
- XO3(i + 2, 2) \
- XO3(i + 3, 3) \
- ST(i, 0) \
- ST(i + 1, 1) \
- ST(i + 2, 2) \
- ST(i + 3, 3) \
-
-
- PF0(0)
- PF0(2)
-
- " .align 32 ;\n"
- " 1: ;\n"
-
- BLOCK(0)
- BLOCK(4)
- BLOCK(8)
- BLOCK(12)
-
- " addq %[inc], %[p1] ;\n"
- " addq %[inc], %[p2] ;\n"
- " addq %[inc], %[p3] ;\n"
- " addq %[inc], %[p4] ;\n"
- " decl %[cnt] ; jnz 1b"
- : [cnt] "+c" (lines),
- [p1] "+r" (p1), [p2] "+r" (p2), [p3] "+r" (p3), [p4] "+r" (p4)
- : [inc] "r" (256UL)
- : "memory" );
-
- XMMS_RESTORE;
-}
-
-static void
-xor_sse_5(unsigned long bytes, unsigned long *p1, unsigned long *p2,
- unsigned long *p3, unsigned long *p4, unsigned long *p5)
-{
- unsigned int lines = bytes >> 8;
- xmm_store_t xmm_save[4];
- unsigned long cr0;
-
- XMMS_SAVE;
-
- asm volatile(
-#undef BLOCK
-#define BLOCK(i) \
- PF1(i) \
- PF1(i + 2) \
- LD(i, 0) \
- LD(i + 1, 1) \
- LD(i + 2, 2) \
- LD(i + 3, 3) \
- PF2(i) \
- PF2(i + 2) \
- XO1(i, 0) \
- XO1(i + 1, 1) \
- XO1(i + 2, 2) \
- XO1(i + 3, 3) \
- PF3(i) \
- PF3(i + 2) \
- XO2(i, 0) \
- XO2(i + 1, 1) \
- XO2(i + 2, 2) \
- XO2(i + 3, 3) \
- PF4(i) \
- PF4(i + 2) \
- PF0(i + 4) \
- PF0(i + 6) \
- XO3(i, 0) \
- XO3(i + 1, 1) \
- XO3(i + 2, 2) \
- XO3(i + 3, 3) \
- XO4(i, 0) \
- XO4(i + 1, 1) \
- XO4(i + 2, 2) \
- XO4(i + 3, 3) \
- ST(i, 0) \
- ST(i + 1, 1) \
- ST(i + 2, 2) \
- ST(i + 3, 3) \
-
-
- PF0(0)
- PF0(2)
-
- " .align 32 ;\n"
- " 1: ;\n"
-
- BLOCK(0)
- BLOCK(4)
- BLOCK(8)
- BLOCK(12)
-
- " addq %[inc], %[p1] ;\n"
- " addq %[inc], %[p2] ;\n"
- " addq %[inc], %[p3] ;\n"
- " addq %[inc], %[p4] ;\n"
- " addq %[inc], %[p5] ;\n"
- " decl %[cnt] ; jnz 1b"
- : [cnt] "+c" (lines),
- [p1] "+r" (p1), [p2] "+r" (p2), [p3] "+r" (p3), [p4] "+r" (p4),
- [p5] "+r" (p5)
- : [inc] "r" (256UL)
- : "memory");
-
- XMMS_RESTORE;
-}
-
static struct xor_block_template xor_block_sse = {
.name = "generic_sse",
.do_2 = xor_sse_2,
@@ -347,15 +10,19 @@ static struct xor_block_template xor_block_sse = {
.do_5 = xor_sse_5,
};
+
+/* Also try the AVX routines */
+#include <asm/xor_avx.h>
+
+/* We force the use of the SSE xor block because it can write around L2.
+ We may also be able to load into the L1 only depending on how the cpu
+ deals with a load to a line that is being prefetched. */
#undef XOR_TRY_TEMPLATES
#define XOR_TRY_TEMPLATES \
do { \
+ AVX_XOR_SPEED; \
+ xor_speed(&xor_block_sse_pf64); \
xor_speed(&xor_block_sse); \
} while (0)
-/* We force the use of the SSE xor block because it can write around L2.
- We may also be able to load into the L1 only depending on how the cpu
- deals with a load to a line that is being prefetched. */
-#define XOR_SELECT_TEMPLATE(FASTEST) (&xor_block_sse)
-
#endif /* _ASM_X86_XOR_64_H */
diff --git a/arch/x86/include/asm/xor_avx.h b/arch/x86/include/asm/xor_avx.h
new file mode 100644
index 000000000000..7f81dd5897f4
--- /dev/null
+++ b/arch/x86/include/asm/xor_avx.h
@@ -0,0 +1,178 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef _ASM_X86_XOR_AVX_H
+#define _ASM_X86_XOR_AVX_H
+
+/*
+ * Optimized RAID-5 checksumming functions for AVX
+ *
+ * Copyright (C) 2012 Intel Corporation
+ * Author: Jim Kukunas <james.t.kukunas@linux.intel.com>
+ *
+ * Based on Ingo Molnar and Zach Brown's respective MMX and SSE routines
+ */
+
+#include <linux/compiler.h>
+#include <asm/fpu/api.h>
+
+#define BLOCK4(i) \
+ BLOCK(32 * i, 0) \
+ BLOCK(32 * (i + 1), 1) \
+ BLOCK(32 * (i + 2), 2) \
+ BLOCK(32 * (i + 3), 3)
+
+#define BLOCK16() \
+ BLOCK4(0) \
+ BLOCK4(4) \
+ BLOCK4(8) \
+ BLOCK4(12)
+
+static void xor_avx_2(unsigned long bytes, unsigned long * __restrict p0,
+ const unsigned long * __restrict p1)
+{
+ unsigned long lines = bytes >> 9;
+
+ kernel_fpu_begin();
+
+ while (lines--) {
+#undef BLOCK
+#define BLOCK(i, reg) \
+do { \
+ asm volatile("vmovdqa %0, %%ymm" #reg : : "m" (p1[i / sizeof(*p1)])); \
+ asm volatile("vxorps %0, %%ymm" #reg ", %%ymm" #reg : : \
+ "m" (p0[i / sizeof(*p0)])); \
+ asm volatile("vmovdqa %%ymm" #reg ", %0" : \
+ "=m" (p0[i / sizeof(*p0)])); \
+} while (0);
+
+ BLOCK16()
+
+ p0 = (unsigned long *)((uintptr_t)p0 + 512);
+ p1 = (unsigned long *)((uintptr_t)p1 + 512);
+ }
+
+ kernel_fpu_end();
+}
+
+static void xor_avx_3(unsigned long bytes, unsigned long * __restrict p0,
+ const unsigned long * __restrict p1,
+ const unsigned long * __restrict p2)
+{
+ unsigned long lines = bytes >> 9;
+
+ kernel_fpu_begin();
+
+ while (lines--) {
+#undef BLOCK
+#define BLOCK(i, reg) \
+do { \
+ asm volatile("vmovdqa %0, %%ymm" #reg : : "m" (p2[i / sizeof(*p2)])); \
+ asm volatile("vxorps %0, %%ymm" #reg ", %%ymm" #reg : : \
+ "m" (p1[i / sizeof(*p1)])); \
+ asm volatile("vxorps %0, %%ymm" #reg ", %%ymm" #reg : : \
+ "m" (p0[i / sizeof(*p0)])); \
+ asm volatile("vmovdqa %%ymm" #reg ", %0" : \
+ "=m" (p0[i / sizeof(*p0)])); \
+} while (0);
+
+ BLOCK16()
+
+ p0 = (unsigned long *)((uintptr_t)p0 + 512);
+ p1 = (unsigned long *)((uintptr_t)p1 + 512);
+ p2 = (unsigned long *)((uintptr_t)p2 + 512);
+ }
+
+ kernel_fpu_end();
+}
+
+static void xor_avx_4(unsigned long bytes, unsigned long * __restrict p0,
+ const unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3)
+{
+ unsigned long lines = bytes >> 9;
+
+ kernel_fpu_begin();
+
+ while (lines--) {
+#undef BLOCK
+#define BLOCK(i, reg) \
+do { \
+ asm volatile("vmovdqa %0, %%ymm" #reg : : "m" (p3[i / sizeof(*p3)])); \
+ asm volatile("vxorps %0, %%ymm" #reg ", %%ymm" #reg : : \
+ "m" (p2[i / sizeof(*p2)])); \
+ asm volatile("vxorps %0, %%ymm" #reg ", %%ymm" #reg : : \
+ "m" (p1[i / sizeof(*p1)])); \
+ asm volatile("vxorps %0, %%ymm" #reg ", %%ymm" #reg : : \
+ "m" (p0[i / sizeof(*p0)])); \
+ asm volatile("vmovdqa %%ymm" #reg ", %0" : \
+ "=m" (p0[i / sizeof(*p0)])); \
+} while (0);
+
+ BLOCK16();
+
+ p0 = (unsigned long *)((uintptr_t)p0 + 512);
+ p1 = (unsigned long *)((uintptr_t)p1 + 512);
+ p2 = (unsigned long *)((uintptr_t)p2 + 512);
+ p3 = (unsigned long *)((uintptr_t)p3 + 512);
+ }
+
+ kernel_fpu_end();
+}
+
+static void xor_avx_5(unsigned long bytes, unsigned long * __restrict p0,
+ const unsigned long * __restrict p1,
+ const unsigned long * __restrict p2,
+ const unsigned long * __restrict p3,
+ const unsigned long * __restrict p4)
+{
+ unsigned long lines = bytes >> 9;
+
+ kernel_fpu_begin();
+
+ while (lines--) {
+#undef BLOCK
+#define BLOCK(i, reg) \
+do { \
+ asm volatile("vmovdqa %0, %%ymm" #reg : : "m" (p4[i / sizeof(*p4)])); \
+ asm volatile("vxorps %0, %%ymm" #reg ", %%ymm" #reg : : \
+ "m" (p3[i / sizeof(*p3)])); \
+ asm volatile("vxorps %0, %%ymm" #reg ", %%ymm" #reg : : \
+ "m" (p2[i / sizeof(*p2)])); \
+ asm volatile("vxorps %0, %%ymm" #reg ", %%ymm" #reg : : \
+ "m" (p1[i / sizeof(*p1)])); \
+ asm volatile("vxorps %0, %%ymm" #reg ", %%ymm" #reg : : \
+ "m" (p0[i / sizeof(*p0)])); \
+ asm volatile("vmovdqa %%ymm" #reg ", %0" : \
+ "=m" (p0[i / sizeof(*p0)])); \
+} while (0);
+
+ BLOCK16()
+
+ p0 = (unsigned long *)((uintptr_t)p0 + 512);
+ p1 = (unsigned long *)((uintptr_t)p1 + 512);
+ p2 = (unsigned long *)((uintptr_t)p2 + 512);
+ p3 = (unsigned long *)((uintptr_t)p3 + 512);
+ p4 = (unsigned long *)((uintptr_t)p4 + 512);
+ }
+
+ kernel_fpu_end();
+}
+
+static struct xor_block_template xor_block_avx = {
+ .name = "avx",
+ .do_2 = xor_avx_2,
+ .do_3 = xor_avx_3,
+ .do_4 = xor_avx_4,
+ .do_5 = xor_avx_5,
+};
+
+#define AVX_XOR_SPEED \
+do { \
+ if (boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_OSXSAVE)) \
+ xor_speed(&xor_block_avx); \
+} while (0)
+
+#define AVX_SELECT(FASTEST) \
+ (boot_cpu_has(X86_FEATURE_AVX) && boot_cpu_has(X86_FEATURE_OSXSAVE) ? &xor_block_avx : FASTEST)
+
+#endif
diff --git a/arch/x86/include/asm/xsave.h b/arch/x86/include/asm/xsave.h
deleted file mode 100644
index c6ce2452f10c..000000000000
--- a/arch/x86/include/asm/xsave.h
+++ /dev/null
@@ -1,150 +0,0 @@
-#ifndef __ASM_X86_XSAVE_H
-#define __ASM_X86_XSAVE_H
-
-#include <linux/types.h>
-#include <asm/processor.h>
-
-#define XSTATE_CPUID 0x0000000d
-
-#define XSTATE_FP 0x1
-#define XSTATE_SSE 0x2
-#define XSTATE_YMM 0x4
-
-#define XSTATE_FPSSE (XSTATE_FP | XSTATE_SSE)
-
-#define FXSAVE_SIZE 512
-
-#define XSAVE_HDR_SIZE 64
-#define XSAVE_HDR_OFFSET FXSAVE_SIZE
-
-#define XSAVE_YMM_SIZE 256
-#define XSAVE_YMM_OFFSET (XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET)
-
-/*
- * These are the features that the OS can handle currently.
- */
-#define XCNTXT_MASK (XSTATE_FP | XSTATE_SSE | XSTATE_YMM)
-
-#ifdef CONFIG_X86_64
-#define REX_PREFIX "0x48, "
-#else
-#define REX_PREFIX
-#endif
-
-extern unsigned int xstate_size;
-extern u64 pcntxt_mask;
-extern u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS];
-
-extern void xsave_init(void);
-extern void update_regset_xstate_info(unsigned int size, u64 xstate_mask);
-extern int init_fpu(struct task_struct *child);
-extern int check_for_xstate(struct i387_fxsave_struct __user *buf,
- void __user *fpstate,
- struct _fpx_sw_bytes *sw);
-
-static inline int fpu_xrstor_checking(struct fpu *fpu)
-{
- struct xsave_struct *fx = &fpu->state->xsave;
- int err;
-
- asm volatile("1: .byte " REX_PREFIX "0x0f,0xae,0x2f\n\t"
- "2:\n"
- ".section .fixup,\"ax\"\n"
- "3: movl $-1,%[err]\n"
- " jmp 2b\n"
- ".previous\n"
- _ASM_EXTABLE(1b, 3b)
- : [err] "=r" (err)
- : "D" (fx), "m" (*fx), "a" (-1), "d" (-1), "0" (0)
- : "memory");
-
- return err;
-}
-
-static inline int xsave_user(struct xsave_struct __user *buf)
-{
- int err;
-
- /*
- * Clear the xsave header first, so that reserved fields are
- * initialized to zero.
- */
- err = __clear_user(&buf->xsave_hdr,
- sizeof(struct xsave_hdr_struct));
- if (unlikely(err))
- return -EFAULT;
-
- __asm__ __volatile__("1: .byte " REX_PREFIX "0x0f,0xae,0x27\n"
- "2:\n"
- ".section .fixup,\"ax\"\n"
- "3: movl $-1,%[err]\n"
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- _ASM_ALIGN "\n"
- _ASM_PTR "1b,3b\n"
- ".previous"
- : [err] "=r" (err)
- : "D" (buf), "a" (-1), "d" (-1), "0" (0)
- : "memory");
- if (unlikely(err) && __clear_user(buf, xstate_size))
- err = -EFAULT;
- /* No need to clear here because the caller clears USED_MATH */
- return err;
-}
-
-static inline int xrestore_user(struct xsave_struct __user *buf, u64 mask)
-{
- int err;
- struct xsave_struct *xstate = ((__force struct xsave_struct *)buf);
- u32 lmask = mask;
- u32 hmask = mask >> 32;
-
- __asm__ __volatile__("1: .byte " REX_PREFIX "0x0f,0xae,0x2f\n"
- "2:\n"
- ".section .fixup,\"ax\"\n"
- "3: movl $-1,%[err]\n"
- " jmp 2b\n"
- ".previous\n"
- ".section __ex_table,\"a\"\n"
- _ASM_ALIGN "\n"
- _ASM_PTR "1b,3b\n"
- ".previous"
- : [err] "=r" (err)
- : "D" (xstate), "a" (lmask), "d" (hmask), "0" (0)
- : "memory"); /* memory required? */
- return err;
-}
-
-static inline void xrstor_state(struct xsave_struct *fx, u64 mask)
-{
- u32 lmask = mask;
- u32 hmask = mask >> 32;
-
- asm volatile(".byte " REX_PREFIX "0x0f,0xae,0x2f\n\t"
- : : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
- : "memory");
-}
-
-static inline void xsave_state(struct xsave_struct *fx, u64 mask)
-{
- u32 lmask = mask;
- u32 hmask = mask >> 32;
-
- asm volatile(".byte " REX_PREFIX "0x0f,0xae,0x27\n\t"
- : : "D" (fx), "m" (*fx), "a" (lmask), "d" (hmask)
- : "memory");
-}
-
-static inline void fpu_xsave(struct fpu *fpu)
-{
- /* This, however, we can work around by forcing the compiler to select
- an addressing mode that doesn't require extended registers. */
- alternative_input(
- ".byte " REX_PREFIX "0x0f,0xae,0x27",
- ".byte " REX_PREFIX "0x0f,0xae,0x37",
- X86_FEATURE_XSAVEOPT,
- [fx] "D" (&fpu->state->xsave), "a" (-1), "d" (-1) :
- "memory");
-}
-#endif
diff --git a/arch/x86/include/uapi/asm/Kbuild b/arch/x86/include/uapi/asm/Kbuild
new file mode 100644
index 000000000000..39606a856d3b
--- /dev/null
+++ b/arch/x86/include/uapi/asm/Kbuild
@@ -0,0 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0
+generated-y += unistd_32.h
+generated-y += unistd_64.h
+generated-y += unistd_x32.h
diff --git a/arch/x86/include/asm/a.out.h b/arch/x86/include/uapi/asm/a.out.h
index 4684f97a5bbd..094c49d8ea8e 100644
--- a/arch/x86/include/asm/a.out.h
+++ b/arch/x86/include/uapi/asm/a.out.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_X86_A_OUT_H
#define _ASM_X86_A_OUT_H
diff --git a/arch/x86/include/uapi/asm/amd_hsmp.h b/arch/x86/include/uapi/asm/amd_hsmp.h
new file mode 100644
index 000000000000..769b939444ae
--- /dev/null
+++ b/arch/x86/include/uapi/asm/amd_hsmp.h
@@ -0,0 +1,307 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+
+#ifndef _UAPI_ASM_X86_AMD_HSMP_H_
+#define _UAPI_ASM_X86_AMD_HSMP_H_
+
+#include <linux/types.h>
+
+#pragma pack(4)
+
+#define HSMP_MAX_MSG_LEN 8
+
+/*
+ * HSMP Messages supported
+ */
+enum hsmp_message_ids {
+ HSMP_TEST = 1, /* 01h Increments input value by 1 */
+ HSMP_GET_SMU_VER, /* 02h SMU FW version */
+ HSMP_GET_PROTO_VER, /* 03h HSMP interface version */
+ HSMP_GET_SOCKET_POWER, /* 04h average package power consumption */
+ HSMP_SET_SOCKET_POWER_LIMIT, /* 05h Set the socket power limit */
+ HSMP_GET_SOCKET_POWER_LIMIT, /* 06h Get current socket power limit */
+ HSMP_GET_SOCKET_POWER_LIMIT_MAX,/* 07h Get maximum socket power value */
+ HSMP_SET_BOOST_LIMIT, /* 08h Set a core maximum frequency limit */
+ HSMP_SET_BOOST_LIMIT_SOCKET, /* 09h Set socket maximum frequency level */
+ HSMP_GET_BOOST_LIMIT, /* 0Ah Get current frequency limit */
+ HSMP_GET_PROC_HOT, /* 0Bh Get PROCHOT status */
+ HSMP_SET_XGMI_LINK_WIDTH, /* 0Ch Set max and min width of xGMI Link */
+ HSMP_SET_DF_PSTATE, /* 0Dh Alter APEnable/Disable messages behavior */
+ HSMP_SET_AUTO_DF_PSTATE, /* 0Eh Enable DF P-State Performance Boost algorithm */
+ HSMP_GET_FCLK_MCLK, /* 0Fh Get FCLK and MEMCLK for current socket */
+ HSMP_GET_CCLK_THROTTLE_LIMIT, /* 10h Get CCLK frequency limit in socket */
+ HSMP_GET_C0_PERCENT, /* 11h Get average C0 residency in socket */
+ HSMP_SET_NBIO_DPM_LEVEL, /* 12h Set max/min LCLK DPM Level for a given NBIO */
+ HSMP_GET_NBIO_DPM_LEVEL, /* 13h Get LCLK DPM level min and max for a given NBIO */
+ HSMP_GET_DDR_BANDWIDTH, /* 14h Get theoretical maximum and current DDR Bandwidth */
+ HSMP_GET_TEMP_MONITOR, /* 15h Get socket temperature */
+ HSMP_GET_DIMM_TEMP_RANGE, /* 16h Get per-DIMM temperature range and refresh rate */
+ HSMP_GET_DIMM_POWER, /* 17h Get per-DIMM power consumption */
+ HSMP_GET_DIMM_THERMAL, /* 18h Get per-DIMM thermal sensors */
+ HSMP_GET_SOCKET_FREQ_LIMIT, /* 19h Get current active frequency per socket */
+ HSMP_GET_CCLK_CORE_LIMIT, /* 1Ah Get CCLK frequency limit per core */
+ HSMP_GET_RAILS_SVI, /* 1Bh Get SVI-based Telemetry for all rails */
+ HSMP_GET_SOCKET_FMAX_FMIN, /* 1Ch Get Fmax and Fmin per socket */
+ HSMP_GET_IOLINK_BANDWITH, /* 1Dh Get current bandwidth on IO Link */
+ HSMP_GET_XGMI_BANDWITH, /* 1Eh Get current bandwidth on xGMI Link */
+ HSMP_SET_GMI3_WIDTH, /* 1Fh Set max and min GMI3 Link width */
+ HSMP_SET_PCI_RATE, /* 20h Control link rate on PCIe devices */
+ HSMP_SET_POWER_MODE, /* 21h Select power efficiency profile policy */
+ HSMP_SET_PSTATE_MAX_MIN, /* 22h Set the max and min DF P-State */
+ HSMP_MSG_ID_MAX,
+};
+
+struct hsmp_message {
+ __u32 msg_id; /* Message ID */
+ __u16 num_args; /* Number of input argument words in message */
+ __u16 response_sz; /* Number of expected output/response words */
+ __u32 args[HSMP_MAX_MSG_LEN]; /* argument/response buffer */
+ __u16 sock_ind; /* socket number */
+};
+
+enum hsmp_msg_type {
+ HSMP_RSVD = -1,
+ HSMP_SET = 0,
+ HSMP_GET = 1,
+};
+
+struct hsmp_msg_desc {
+ int num_args;
+ int response_sz;
+ enum hsmp_msg_type type;
+};
+
+/*
+ * User may use these comments as reference, please find the
+ * supported list of messages and message definition in the
+ * HSMP chapter of respective family/model PPR.
+ *
+ * Not supported messages would return -ENOMSG.
+ */
+static const struct hsmp_msg_desc hsmp_msg_desc_table[] = {
+ /* RESERVED */
+ {0, 0, HSMP_RSVD},
+
+ /*
+ * HSMP_TEST, num_args = 1, response_sz = 1
+ * input: args[0] = xx
+ * output: args[0] = xx + 1
+ */
+ {1, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_SMU_VER, num_args = 0, response_sz = 1
+ * output: args[0] = smu fw ver
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_PROTO_VER, num_args = 0, response_sz = 1
+ * output: args[0] = proto version
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_SOCKET_POWER, num_args = 0, response_sz = 1
+ * output: args[0] = socket power in mWatts
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_SET_SOCKET_POWER_LIMIT, num_args = 1, response_sz = 0
+ * input: args[0] = power limit value in mWatts
+ */
+ {1, 0, HSMP_SET},
+
+ /*
+ * HSMP_GET_SOCKET_POWER_LIMIT, num_args = 0, response_sz = 1
+ * output: args[0] = socket power limit value in mWatts
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_SOCKET_POWER_LIMIT_MAX, num_args = 0, response_sz = 1
+ * output: args[0] = maximuam socket power limit in mWatts
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_SET_BOOST_LIMIT, num_args = 1, response_sz = 0
+ * input: args[0] = apic id[31:16] + boost limit value in MHz[15:0]
+ */
+ {1, 0, HSMP_SET},
+
+ /*
+ * HSMP_SET_BOOST_LIMIT_SOCKET, num_args = 1, response_sz = 0
+ * input: args[0] = boost limit value in MHz
+ */
+ {1, 0, HSMP_SET},
+
+ /*
+ * HSMP_GET_BOOST_LIMIT, num_args = 1, response_sz = 1
+ * input: args[0] = apic id
+ * output: args[0] = boost limit value in MHz
+ */
+ {1, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_PROC_HOT, num_args = 0, response_sz = 1
+ * output: args[0] = proc hot status
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_SET_XGMI_LINK_WIDTH, num_args = 1, response_sz = 0
+ * input: args[0] = min link width[15:8] + max link width[7:0]
+ */
+ {1, 0, HSMP_SET},
+
+ /*
+ * HSMP_SET_DF_PSTATE, num_args = 1, response_sz = 0
+ * input: args[0] = df pstate[7:0]
+ */
+ {1, 0, HSMP_SET},
+
+ /* HSMP_SET_AUTO_DF_PSTATE, num_args = 0, response_sz = 0 */
+ {0, 0, HSMP_SET},
+
+ /*
+ * HSMP_GET_FCLK_MCLK, num_args = 0, response_sz = 2
+ * output: args[0] = fclk in MHz, args[1] = mclk in MHz
+ */
+ {0, 2, HSMP_GET},
+
+ /*
+ * HSMP_GET_CCLK_THROTTLE_LIMIT, num_args = 0, response_sz = 1
+ * output: args[0] = core clock in MHz
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_C0_PERCENT, num_args = 0, response_sz = 1
+ * output: args[0] = average c0 residency
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_SET_NBIO_DPM_LEVEL, num_args = 1, response_sz = 0
+ * input: args[0] = nbioid[23:16] + max dpm level[15:8] + min dpm level[7:0]
+ */
+ {1, 0, HSMP_SET},
+
+ /*
+ * HSMP_GET_NBIO_DPM_LEVEL, num_args = 1, response_sz = 1
+ * input: args[0] = nbioid[23:16]
+ * output: args[0] = max dpm level[15:8] + min dpm level[7:0]
+ */
+ {1, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_DDR_BANDWIDTH, num_args = 0, response_sz = 1
+ * output: args[0] = max bw in Gbps[31:20] + utilised bw in Gbps[19:8] +
+ * bw in percentage[7:0]
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_TEMP_MONITOR, num_args = 0, response_sz = 1
+ * output: args[0] = temperature in degree celsius. [15:8] integer part +
+ * [7:5] fractional part
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_DIMM_TEMP_RANGE, num_args = 1, response_sz = 1
+ * input: args[0] = DIMM address[7:0]
+ * output: args[0] = refresh rate[3] + temperature range[2:0]
+ */
+ {1, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_DIMM_POWER, num_args = 1, response_sz = 1
+ * input: args[0] = DIMM address[7:0]
+ * output: args[0] = DIMM power in mW[31:17] + update rate in ms[16:8] +
+ * DIMM address[7:0]
+ */
+ {1, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_DIMM_THERMAL, num_args = 1, response_sz = 1
+ * input: args[0] = DIMM address[7:0]
+ * output: args[0] = temperature in degree celcius[31:21] + update rate in ms[16:8] +
+ * DIMM address[7:0]
+ */
+ {1, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_SOCKET_FREQ_LIMIT, num_args = 0, response_sz = 1
+ * output: args[0] = frequency in MHz[31:16] + frequency source[15:0]
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_CCLK_CORE_LIMIT, num_args = 1, response_sz = 1
+ * input: args[0] = apic id [31:0]
+ * output: args[0] = frequency in MHz[31:0]
+ */
+ {1, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_RAILS_SVI, num_args = 0, response_sz = 1
+ * output: args[0] = power in mW[31:0]
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_SOCKET_FMAX_FMIN, num_args = 0, response_sz = 1
+ * output: args[0] = fmax in MHz[31:16] + fmin in MHz[15:0]
+ */
+ {0, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_IOLINK_BANDWITH, num_args = 1, response_sz = 1
+ * input: args[0] = link id[15:8] + bw type[2:0]
+ * output: args[0] = io bandwidth in Mbps[31:0]
+ */
+ {1, 1, HSMP_GET},
+
+ /*
+ * HSMP_GET_XGMI_BANDWITH, num_args = 1, response_sz = 1
+ * input: args[0] = link id[15:8] + bw type[2:0]
+ * output: args[0] = xgmi bandwidth in Mbps[31:0]
+ */
+ {1, 1, HSMP_GET},
+
+ /*
+ * HSMP_SET_GMI3_WIDTH, num_args = 1, response_sz = 0
+ * input: args[0] = min link width[15:8] + max link width[7:0]
+ */
+ {1, 0, HSMP_SET},
+
+ /*
+ * HSMP_SET_PCI_RATE, num_args = 1, response_sz = 1
+ * input: args[0] = link rate control value
+ * output: args[0] = previous link rate control value
+ */
+ {1, 1, HSMP_SET},
+
+ /*
+ * HSMP_SET_POWER_MODE, num_args = 1, response_sz = 0
+ * input: args[0] = power efficiency mode[2:0]
+ */
+ {1, 0, HSMP_SET},
+
+ /*
+ * HSMP_SET_PSTATE_MAX_MIN, num_args = 1, response_sz = 0
+ * input: args[0] = min df pstate[15:8] + max df pstate[7:0]
+ */
+ {1, 0, HSMP_SET},
+};
+
+/* Reset to default packing */
+#pragma pack()
+
+/* Define unique ioctl command for hsmp msgs using generic _IOWR */
+#define HSMP_BASE_IOCTL_NR 0xF8
+#define HSMP_IOCTL_CMD _IOWR(HSMP_BASE_IOCTL_NR, 0, struct hsmp_message)
+
+#endif /*_ASM_X86_AMD_HSMP_H_*/
diff --git a/arch/x86/include/asm/auxvec.h b/arch/x86/include/uapi/asm/auxvec.h
index 1316b4c35425..6beb55bbefa4 100644
--- a/arch/x86/include/asm/auxvec.h
+++ b/arch/x86/include/uapi/asm/auxvec.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_X86_AUXVEC_H
#define _ASM_X86_AUXVEC_H
/*
@@ -9,4 +10,11 @@
#endif
#define AT_SYSINFO_EHDR 33
+/* entries in ARCH_DLINFO: */
+#if defined(CONFIG_IA32_EMULATION) || !defined(CONFIG_X86_64)
+# define AT_VECTOR_SIZE_ARCH 3
+#else /* else it's non-compat x86-64 */
+# define AT_VECTOR_SIZE_ARCH 2
+#endif
+
#endif /* _ASM_X86_AUXVEC_H */
diff --git a/arch/x86/include/asm/bitsperlong.h b/arch/x86/include/uapi/asm/bitsperlong.h
index b0ae1c4dc791..5d72c8458838 100644
--- a/arch/x86/include/asm/bitsperlong.h
+++ b/arch/x86/include/uapi/asm/bitsperlong.h
@@ -1,7 +1,8 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef __ASM_X86_BITSPERLONG_H
#define __ASM_X86_BITSPERLONG_H
-#ifdef __x86_64__
+#if defined(__x86_64__) && !defined(__ILP32__)
# define __BITS_PER_LONG 64
#else
# define __BITS_PER_LONG 32
diff --git a/arch/x86/include/uapi/asm/boot.h b/arch/x86/include/uapi/asm/boot.h
new file mode 100644
index 000000000000..88ffc5aee087
--- /dev/null
+++ b/arch/x86/include/uapi/asm/boot.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_BOOT_H
+#define _UAPI_ASM_X86_BOOT_H
+
+/* Internal svga startup constants */
+#define NORMAL_VGA 0xffff /* 80x25 mode */
+#define EXTENDED_VGA 0xfffe /* 80x50 mode */
+#define ASK_VGA 0xfffd /* ask for it at bootup */
+
+
+#endif /* _UAPI_ASM_X86_BOOT_H */
diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h
new file mode 100644
index 000000000000..01d19fc22346
--- /dev/null
+++ b/arch/x86/include/uapi/asm/bootparam.h
@@ -0,0 +1,284 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_BOOTPARAM_H
+#define _ASM_X86_BOOTPARAM_H
+
+/* setup_data/setup_indirect types */
+#define SETUP_NONE 0
+#define SETUP_E820_EXT 1
+#define SETUP_DTB 2
+#define SETUP_PCI 3
+#define SETUP_EFI 4
+#define SETUP_APPLE_PROPERTIES 5
+#define SETUP_JAILHOUSE 6
+#define SETUP_CC_BLOB 7
+#define SETUP_IMA 8
+#define SETUP_RNG_SEED 9
+#define SETUP_ENUM_MAX SETUP_RNG_SEED
+
+#define SETUP_INDIRECT (1<<31)
+#define SETUP_TYPE_MAX (SETUP_ENUM_MAX | SETUP_INDIRECT)
+
+/* ram_size flags */
+#define RAMDISK_IMAGE_START_MASK 0x07FF
+#define RAMDISK_PROMPT_FLAG 0x8000
+#define RAMDISK_LOAD_FLAG 0x4000
+
+/* loadflags */
+#define LOADED_HIGH (1<<0)
+#define KASLR_FLAG (1<<1)
+#define QUIET_FLAG (1<<5)
+#define KEEP_SEGMENTS (1<<6)
+#define CAN_USE_HEAP (1<<7)
+
+/* xloadflags */
+#define XLF_KERNEL_64 (1<<0)
+#define XLF_CAN_BE_LOADED_ABOVE_4G (1<<1)
+#define XLF_EFI_HANDOVER_32 (1<<2)
+#define XLF_EFI_HANDOVER_64 (1<<3)
+#define XLF_EFI_KEXEC (1<<4)
+#define XLF_5LEVEL (1<<5)
+#define XLF_5LEVEL_ENABLED (1<<6)
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+#include <linux/screen_info.h>
+#include <linux/apm_bios.h>
+#include <linux/edd.h>
+#include <asm/ist.h>
+#include <video/edid.h>
+
+/* extensible setup data list node */
+struct setup_data {
+ __u64 next;
+ __u32 type;
+ __u32 len;
+ __u8 data[];
+};
+
+/* extensible setup indirect data node */
+struct setup_indirect {
+ __u32 type;
+ __u32 reserved; /* Reserved, must be set to zero. */
+ __u64 len;
+ __u64 addr;
+};
+
+struct setup_header {
+ __u8 setup_sects;
+ __u16 root_flags;
+ __u32 syssize;
+ __u16 ram_size;
+ __u16 vid_mode;
+ __u16 root_dev;
+ __u16 boot_flag;
+ __u16 jump;
+ __u32 header;
+ __u16 version;
+ __u32 realmode_swtch;
+ __u16 start_sys_seg;
+ __u16 kernel_version;
+ __u8 type_of_loader;
+ __u8 loadflags;
+ __u16 setup_move_size;
+ __u32 code32_start;
+ __u32 ramdisk_image;
+ __u32 ramdisk_size;
+ __u32 bootsect_kludge;
+ __u16 heap_end_ptr;
+ __u8 ext_loader_ver;
+ __u8 ext_loader_type;
+ __u32 cmd_line_ptr;
+ __u32 initrd_addr_max;
+ __u32 kernel_alignment;
+ __u8 relocatable_kernel;
+ __u8 min_alignment;
+ __u16 xloadflags;
+ __u32 cmdline_size;
+ __u32 hardware_subarch;
+ __u64 hardware_subarch_data;
+ __u32 payload_offset;
+ __u32 payload_length;
+ __u64 setup_data;
+ __u64 pref_address;
+ __u32 init_size;
+ __u32 handover_offset;
+ __u32 kernel_info_offset;
+} __attribute__((packed));
+
+struct sys_desc_table {
+ __u16 length;
+ __u8 table[14];
+};
+
+/* Gleaned from OFW's set-parameters in cpu/x86/pc/linux.fth */
+struct olpc_ofw_header {
+ __u32 ofw_magic; /* OFW signature */
+ __u32 ofw_version;
+ __u32 cif_handler; /* callback into OFW */
+ __u32 irq_desc_table;
+} __attribute__((packed));
+
+struct efi_info {
+ __u32 efi_loader_signature;
+ __u32 efi_systab;
+ __u32 efi_memdesc_size;
+ __u32 efi_memdesc_version;
+ __u32 efi_memmap;
+ __u32 efi_memmap_size;
+ __u32 efi_systab_hi;
+ __u32 efi_memmap_hi;
+};
+
+/*
+ * This is the maximum number of entries in struct boot_params::e820_table
+ * (the zeropage), which is part of the x86 boot protocol ABI:
+ */
+#define E820_MAX_ENTRIES_ZEROPAGE 128
+
+/*
+ * The E820 memory region entry of the boot protocol ABI:
+ */
+struct boot_e820_entry {
+ __u64 addr;
+ __u64 size;
+ __u32 type;
+} __attribute__((packed));
+
+/*
+ * Smallest compatible version of jailhouse_setup_data required by this kernel.
+ */
+#define JAILHOUSE_SETUP_REQUIRED_VERSION 1
+
+/*
+ * The boot loader is passing platform information via this Jailhouse-specific
+ * setup data structure.
+ */
+struct jailhouse_setup_data {
+ struct {
+ __u16 version;
+ __u16 compatible_version;
+ } __attribute__((packed)) hdr;
+ struct {
+ __u16 pm_timer_address;
+ __u16 num_cpus;
+ __u64 pci_mmconfig_base;
+ __u32 tsc_khz;
+ __u32 apic_khz;
+ __u8 standard_ioapic;
+ __u8 cpu_ids[255];
+ } __attribute__((packed)) v1;
+ struct {
+ __u32 flags;
+ } __attribute__((packed)) v2;
+} __attribute__((packed));
+
+/*
+ * IMA buffer setup data information from the previous kernel during kexec
+ */
+struct ima_setup_data {
+ __u64 addr;
+ __u64 size;
+} __attribute__((packed));
+
+/* The so-called "zeropage" */
+struct boot_params {
+ struct screen_info screen_info; /* 0x000 */
+ struct apm_bios_info apm_bios_info; /* 0x040 */
+ __u8 _pad2[4]; /* 0x054 */
+ __u64 tboot_addr; /* 0x058 */
+ struct ist_info ist_info; /* 0x060 */
+ __u64 acpi_rsdp_addr; /* 0x070 */
+ __u8 _pad3[8]; /* 0x078 */
+ __u8 hd0_info[16]; /* obsolete! */ /* 0x080 */
+ __u8 hd1_info[16]; /* obsolete! */ /* 0x090 */
+ struct sys_desc_table sys_desc_table; /* obsolete! */ /* 0x0a0 */
+ struct olpc_ofw_header olpc_ofw_header; /* 0x0b0 */
+ __u32 ext_ramdisk_image; /* 0x0c0 */
+ __u32 ext_ramdisk_size; /* 0x0c4 */
+ __u32 ext_cmd_line_ptr; /* 0x0c8 */
+ __u8 _pad4[112]; /* 0x0cc */
+ __u32 cc_blob_address; /* 0x13c */
+ struct edid_info edid_info; /* 0x140 */
+ struct efi_info efi_info; /* 0x1c0 */
+ __u32 alt_mem_k; /* 0x1e0 */
+ __u32 scratch; /* Scratch field! */ /* 0x1e4 */
+ __u8 e820_entries; /* 0x1e8 */
+ __u8 eddbuf_entries; /* 0x1e9 */
+ __u8 edd_mbr_sig_buf_entries; /* 0x1ea */
+ __u8 kbd_status; /* 0x1eb */
+ __u8 secure_boot; /* 0x1ec */
+ __u8 _pad5[2]; /* 0x1ed */
+ /*
+ * The sentinel is set to a nonzero value (0xff) in header.S.
+ *
+ * A bootloader is supposed to only take setup_header and put
+ * it into a clean boot_params buffer. If it turns out that
+ * it is clumsy or too generous with the buffer, it most
+ * probably will pick up the sentinel variable too. The fact
+ * that this variable then is still 0xff will let kernel
+ * know that some variables in boot_params are invalid and
+ * kernel should zero out certain portions of boot_params.
+ */
+ __u8 sentinel; /* 0x1ef */
+ __u8 _pad6[1]; /* 0x1f0 */
+ struct setup_header hdr; /* setup header */ /* 0x1f1 */
+ __u8 _pad7[0x290-0x1f1-sizeof(struct setup_header)];
+ __u32 edd_mbr_sig_buffer[EDD_MBR_SIG_MAX]; /* 0x290 */
+ struct boot_e820_entry e820_table[E820_MAX_ENTRIES_ZEROPAGE]; /* 0x2d0 */
+ __u8 _pad8[48]; /* 0xcd0 */
+ struct edd_info eddbuf[EDDMAXNR]; /* 0xd00 */
+ __u8 _pad9[276]; /* 0xeec */
+} __attribute__((packed));
+
+/**
+ * enum x86_hardware_subarch - x86 hardware subarchitecture
+ *
+ * The x86 hardware_subarch and hardware_subarch_data were added as of the x86
+ * boot protocol 2.07 to help distinguish and support custom x86 boot
+ * sequences. This enum represents accepted values for the x86
+ * hardware_subarch. Custom x86 boot sequences (not X86_SUBARCH_PC) do not
+ * have or simply *cannot* make use of natural stubs like BIOS or EFI, the
+ * hardware_subarch can be used on the Linux entry path to revector to a
+ * subarchitecture stub when needed. This subarchitecture stub can be used to
+ * set up Linux boot parameters or for special care to account for nonstandard
+ * handling of page tables.
+ *
+ * These enums should only ever be used by x86 code, and the code that uses
+ * it should be well contained and compartmentalized.
+ *
+ * KVM and Xen HVM do not have a subarch as these are expected to follow
+ * standard x86 boot entries. If there is a genuine need for "hypervisor" type
+ * that should be considered separately in the future. Future guest types
+ * should seriously consider working with standard x86 boot stubs such as
+ * the BIOS or EFI boot stubs.
+ *
+ * WARNING: this enum is only used for legacy hacks, for platform features that
+ * are not easily enumerated or discoverable. You should not ever use
+ * this for new features.
+ *
+ * @X86_SUBARCH_PC: Should be used if the hardware is enumerable using standard
+ * PC mechanisms (PCI, ACPI) and doesn't need a special boot flow.
+ * @X86_SUBARCH_LGUEST: Used for x86 hypervisor demo, lguest, deprecated
+ * @X86_SUBARCH_XEN: Used for Xen guest types which follow the PV boot path,
+ * which start at asm startup_xen() entry point and later jump to the C
+ * xen_start_kernel() entry point. Both domU and dom0 type of guests are
+ * currently supported through this PV boot path.
+ * @X86_SUBARCH_INTEL_MID: Used for Intel MID (Mobile Internet Device) platform
+ * systems which do not have the PCI legacy interfaces.
+ * @X86_SUBARCH_CE4100: Used for Intel CE media processor (CE4100) SoC
+ * for settop boxes and media devices, the use of a subarch for CE4100
+ * is more of a hack...
+ */
+enum x86_hardware_subarch {
+ X86_SUBARCH_PC = 0,
+ X86_SUBARCH_LGUEST,
+ X86_SUBARCH_XEN,
+ X86_SUBARCH_INTEL_MID,
+ X86_SUBARCH_CE4100,
+ X86_NR_SUBARCHS,
+};
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_X86_BOOTPARAM_H */
diff --git a/arch/x86/include/asm/byteorder.h b/arch/x86/include/uapi/asm/byteorder.h
index b13a7a88f3eb..149143cab9ff 100644
--- a/arch/x86/include/asm/byteorder.h
+++ b/arch/x86/include/uapi/asm/byteorder.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_X86_BYTEORDER_H
#define _ASM_X86_BYTEORDER_H
diff --git a/arch/x86/include/uapi/asm/debugreg.h b/arch/x86/include/uapi/asm/debugreg.h
new file mode 100644
index 000000000000..0007ba077c0c
--- /dev/null
+++ b/arch/x86/include/uapi/asm/debugreg.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_DEBUGREG_H
+#define _UAPI_ASM_X86_DEBUGREG_H
+
+
+/* Indicate the register numbers for a number of the specific
+ debug registers. Registers 0-3 contain the addresses we wish to trap on */
+#define DR_FIRSTADDR 0 /* u_debugreg[DR_FIRSTADDR] */
+#define DR_LASTADDR 3 /* u_debugreg[DR_LASTADDR] */
+
+#define DR_STATUS 6 /* u_debugreg[DR_STATUS] */
+#define DR_CONTROL 7 /* u_debugreg[DR_CONTROL] */
+
+/* Define a few things for the status register. We can use this to determine
+ which debugging register was responsible for the trap. The other bits
+ are either reserved or not of interest to us. */
+
+/* Define reserved bits in DR6 which are always set to 1 */
+#define DR6_RESERVED (0xFFFF0FF0)
+
+#define DR_TRAP0 (0x1) /* db0 */
+#define DR_TRAP1 (0x2) /* db1 */
+#define DR_TRAP2 (0x4) /* db2 */
+#define DR_TRAP3 (0x8) /* db3 */
+#define DR_TRAP_BITS (DR_TRAP0|DR_TRAP1|DR_TRAP2|DR_TRAP3)
+
+#define DR_BUS_LOCK (0x800) /* bus_lock */
+#define DR_STEP (0x4000) /* single-step */
+#define DR_SWITCH (0x8000) /* task switch */
+
+/* Now define a bunch of things for manipulating the control register.
+ The top two bytes of the control register consist of 4 fields of 4
+ bits - each field corresponds to one of the four debug registers,
+ and indicates what types of access we trap on, and how large the data
+ field is that we are looking at */
+
+#define DR_CONTROL_SHIFT 16 /* Skip this many bits in ctl register */
+#define DR_CONTROL_SIZE 4 /* 4 control bits per register */
+
+#define DR_RW_EXECUTE (0x0) /* Settings for the access types to trap on */
+#define DR_RW_WRITE (0x1)
+#define DR_RW_READ (0x3)
+
+#define DR_LEN_1 (0x0) /* Settings for data length to trap on */
+#define DR_LEN_2 (0x4)
+#define DR_LEN_4 (0xC)
+#define DR_LEN_8 (0x8)
+
+/* The low byte to the control register determine which registers are
+ enabled. There are 4 fields of two bits. One bit is "local", meaning
+ that the processor will reset the bit after a task switch and the other
+ is global meaning that we have to explicitly reset the bit. With linux,
+ you can use either one, since we explicitly zero the register when we enter
+ kernel mode. */
+
+#define DR_LOCAL_ENABLE_SHIFT 0 /* Extra shift to the local enable bit */
+#define DR_GLOBAL_ENABLE_SHIFT 1 /* Extra shift to the global enable bit */
+#define DR_LOCAL_ENABLE (0x1) /* Local enable for reg 0 */
+#define DR_GLOBAL_ENABLE (0x2) /* Global enable for reg 0 */
+#define DR_ENABLE_SIZE 2 /* 2 enable bits per register */
+
+#define DR_LOCAL_ENABLE_MASK (0x55) /* Set local bits for all 4 regs */
+#define DR_GLOBAL_ENABLE_MASK (0xAA) /* Set global bits for all 4 regs */
+
+/* The second byte to the control register has a few special things.
+ We can slow the instruction pipeline for instructions coming via the
+ gdt or the ldt if we want to. I am not sure why this is an advantage */
+
+#ifdef __i386__
+#define DR_CONTROL_RESERVED (0xFC00) /* Reserved by Intel */
+#else
+#define DR_CONTROL_RESERVED (0xFFFFFFFF0000FC00UL) /* Reserved */
+#endif
+
+#define DR_LOCAL_SLOWDOWN (0x100) /* Local slow the pipeline */
+#define DR_GLOBAL_SLOWDOWN (0x200) /* Global slow the pipeline */
+
+/*
+ * HW breakpoint additions
+ */
+
+#endif /* _UAPI_ASM_X86_DEBUGREG_H */
diff --git a/arch/x86/include/uapi/asm/e820.h b/arch/x86/include/uapi/asm/e820.h
new file mode 100644
index 000000000000..2f491efe3a12
--- /dev/null
+++ b/arch/x86/include/uapi/asm/e820.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_E820_H
+#define _UAPI_ASM_X86_E820_H
+#define E820MAP 0x2d0 /* our map */
+#define E820MAX 128 /* number of entries in E820MAP */
+
+/*
+ * Legacy E820 BIOS limits us to 128 (E820MAX) nodes due to the
+ * constrained space in the zeropage. If we have more nodes than
+ * that, and if we've booted off EFI firmware, then the EFI tables
+ * passed us from the EFI firmware can list more nodes. Size our
+ * internal memory map tables to have room for these additional
+ * nodes, based on up to three entries per node for which the
+ * kernel was built: MAX_NUMNODES == (1 << CONFIG_NODES_SHIFT),
+ * plus E820MAX, allowing space for the possible duplicate E820
+ * entries that might need room in the same arrays, prior to the
+ * call to sanitize_e820_map() to remove duplicates. The allowance
+ * of three memory map entries per node is "enough" entries for
+ * the initial hardware platform motivating this mechanism to make
+ * use of additional EFI map entries. Future platforms may want
+ * to allow more than three entries per node or otherwise refine
+ * this size.
+ */
+
+#ifndef __KERNEL__
+#define E820_X_MAX E820MAX
+#endif
+
+#define E820NR 0x1e8 /* # entries in E820MAP */
+
+#define E820_RAM 1
+#define E820_RESERVED 2
+#define E820_ACPI 3
+#define E820_NVS 4
+#define E820_UNUSABLE 5
+#define E820_PMEM 7
+
+/*
+ * This is a non-standardized way to represent ADR or NVDIMM regions that
+ * persist over a reboot. The kernel will ignore their special capabilities
+ * unless the CONFIG_X86_PMEM_LEGACY option is set.
+ *
+ * ( Note that older platforms also used 6 for the same type of memory,
+ * but newer versions switched to 12 as 6 was assigned differently. Some
+ * time they will learn... )
+ */
+#define E820_PRAM 12
+
+/*
+ * reserved RAM used by kernel itself
+ * if CONFIG_INTEL_TXT is enabled, memory of this type will be
+ * included in the S3 integrity calculation and so should not include
+ * any memory that BIOS might alter over the S3 transition
+ */
+#define E820_RESERVED_KERN 128
+
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+struct e820entry {
+ __u64 addr; /* start of memory segment */
+ __u64 size; /* size of memory segment */
+ __u32 type; /* type of memory segment */
+} __attribute__((packed));
+
+struct e820map {
+ __u32 nr_map;
+ struct e820entry map[E820_X_MAX];
+};
+
+#define ISA_START_ADDRESS 0xa0000
+#define ISA_END_ADDRESS 0x100000
+
+#define BIOS_BEGIN 0x000a0000
+#define BIOS_END 0x00100000
+
+#define BIOS_ROM_BASE 0xffe00000
+#define BIOS_ROM_END 0xffffffff
+
+#endif /* __ASSEMBLY__ */
+
+
+#endif /* _UAPI_ASM_X86_E820_H */
diff --git a/arch/x86/include/uapi/asm/hw_breakpoint.h b/arch/x86/include/uapi/asm/hw_breakpoint.h
new file mode 100644
index 000000000000..6789884c7701
--- /dev/null
+++ b/arch/x86/include/uapi/asm/hw_breakpoint.h
@@ -0,0 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* */
diff --git a/arch/x86/include/uapi/asm/hwcap2.h b/arch/x86/include/uapi/asm/hwcap2.h
new file mode 100644
index 000000000000..054604aba9f0
--- /dev/null
+++ b/arch/x86/include/uapi/asm/hwcap2.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_HWCAP2_H
+#define _ASM_X86_HWCAP2_H
+
+#include <linux/const.h>
+
+/* MONITOR/MWAIT enabled in Ring 3 */
+#define HWCAP2_RING3MWAIT _BITUL(0)
+
+/* Kernel allows FSGSBASE instructions available in Ring 3 */
+#define HWCAP2_FSGSBASE _BITUL(1)
+
+#endif
diff --git a/arch/x86/include/uapi/asm/ist.h b/arch/x86/include/uapi/asm/ist.h
new file mode 100644
index 000000000000..eac5b207939d
--- /dev/null
+++ b/arch/x86/include/uapi/asm/ist.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+ * Include file for the interface to IST BIOS
+ * Copyright 2002 Andy Grover <andrew.grover@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ */
+#ifndef _UAPI_ASM_X86_IST_H
+#define _UAPI_ASM_X86_IST_H
+
+
+
+#include <linux/types.h>
+
+struct ist_info {
+ __u32 signature;
+ __u32 command;
+ __u32 event;
+ __u32 perf_level;
+};
+
+#endif /* _UAPI_ASM_X86_IST_H */
diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h
new file mode 100644
index 000000000000..1a6a1f987949
--- /dev/null
+++ b/arch/x86/include/uapi/asm/kvm.h
@@ -0,0 +1,565 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_KVM_H
+#define _ASM_X86_KVM_H
+
+/*
+ * KVM x86 specific structures and definitions
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#include <linux/stddef.h>
+
+#define KVM_PIO_PAGE_OFFSET 1
+#define KVM_COALESCED_MMIO_PAGE_OFFSET 2
+#define KVM_DIRTY_LOG_PAGE_OFFSET 64
+
+#define DE_VECTOR 0
+#define DB_VECTOR 1
+#define BP_VECTOR 3
+#define OF_VECTOR 4
+#define BR_VECTOR 5
+#define UD_VECTOR 6
+#define NM_VECTOR 7
+#define DF_VECTOR 8
+#define TS_VECTOR 10
+#define NP_VECTOR 11
+#define SS_VECTOR 12
+#define GP_VECTOR 13
+#define PF_VECTOR 14
+#define MF_VECTOR 16
+#define AC_VECTOR 17
+#define MC_VECTOR 18
+#define XM_VECTOR 19
+#define VE_VECTOR 20
+
+/* Select x86 specific features in <linux/kvm.h> */
+#define __KVM_HAVE_PIT
+#define __KVM_HAVE_IOAPIC
+#define __KVM_HAVE_IRQ_LINE
+#define __KVM_HAVE_MSI
+#define __KVM_HAVE_USER_NMI
+#define __KVM_HAVE_GUEST_DEBUG
+#define __KVM_HAVE_MSIX
+#define __KVM_HAVE_MCE
+#define __KVM_HAVE_PIT_STATE2
+#define __KVM_HAVE_XEN_HVM
+#define __KVM_HAVE_VCPU_EVENTS
+#define __KVM_HAVE_DEBUGREGS
+#define __KVM_HAVE_XSAVE
+#define __KVM_HAVE_XCRS
+#define __KVM_HAVE_READONLY_MEM
+
+/* Architectural interrupt line count. */
+#define KVM_NR_INTERRUPTS 256
+
+/* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */
+struct kvm_pic_state {
+ __u8 last_irr; /* edge detection */
+ __u8 irr; /* interrupt request register */
+ __u8 imr; /* interrupt mask register */
+ __u8 isr; /* interrupt service register */
+ __u8 priority_add; /* highest irq priority */
+ __u8 irq_base;
+ __u8 read_reg_select;
+ __u8 poll;
+ __u8 special_mask;
+ __u8 init_state;
+ __u8 auto_eoi;
+ __u8 rotate_on_auto_eoi;
+ __u8 special_fully_nested_mode;
+ __u8 init4; /* true if 4 byte init */
+ __u8 elcr; /* PIIX edge/trigger selection */
+ __u8 elcr_mask;
+};
+
+#define KVM_IOAPIC_NUM_PINS 24
+struct kvm_ioapic_state {
+ __u64 base_address;
+ __u32 ioregsel;
+ __u32 id;
+ __u32 irr;
+ __u32 pad;
+ union {
+ __u64 bits;
+ struct {
+ __u8 vector;
+ __u8 delivery_mode:3;
+ __u8 dest_mode:1;
+ __u8 delivery_status:1;
+ __u8 polarity:1;
+ __u8 remote_irr:1;
+ __u8 trig_mode:1;
+ __u8 mask:1;
+ __u8 reserve:7;
+ __u8 reserved[4];
+ __u8 dest_id;
+ } fields;
+ } redirtbl[KVM_IOAPIC_NUM_PINS];
+};
+
+#define KVM_IRQCHIP_PIC_MASTER 0
+#define KVM_IRQCHIP_PIC_SLAVE 1
+#define KVM_IRQCHIP_IOAPIC 2
+#define KVM_NR_IRQCHIPS 3
+
+#define KVM_RUN_X86_SMM (1 << 0)
+#define KVM_RUN_X86_BUS_LOCK (1 << 1)
+
+/* for KVM_GET_REGS and KVM_SET_REGS */
+struct kvm_regs {
+ /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */
+ __u64 rax, rbx, rcx, rdx;
+ __u64 rsi, rdi, rsp, rbp;
+ __u64 r8, r9, r10, r11;
+ __u64 r12, r13, r14, r15;
+ __u64 rip, rflags;
+};
+
+/* for KVM_GET_LAPIC and KVM_SET_LAPIC */
+#define KVM_APIC_REG_SIZE 0x400
+struct kvm_lapic_state {
+ char regs[KVM_APIC_REG_SIZE];
+};
+
+struct kvm_segment {
+ __u64 base;
+ __u32 limit;
+ __u16 selector;
+ __u8 type;
+ __u8 present, dpl, db, s, l, g, avl;
+ __u8 unusable;
+ __u8 padding;
+};
+
+struct kvm_dtable {
+ __u64 base;
+ __u16 limit;
+ __u16 padding[3];
+};
+
+
+/* for KVM_GET_SREGS and KVM_SET_SREGS */
+struct kvm_sregs {
+ /* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */
+ struct kvm_segment cs, ds, es, fs, gs, ss;
+ struct kvm_segment tr, ldt;
+ struct kvm_dtable gdt, idt;
+ __u64 cr0, cr2, cr3, cr4, cr8;
+ __u64 efer;
+ __u64 apic_base;
+ __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64];
+};
+
+struct kvm_sregs2 {
+ /* out (KVM_GET_SREGS2) / in (KVM_SET_SREGS2) */
+ struct kvm_segment cs, ds, es, fs, gs, ss;
+ struct kvm_segment tr, ldt;
+ struct kvm_dtable gdt, idt;
+ __u64 cr0, cr2, cr3, cr4, cr8;
+ __u64 efer;
+ __u64 apic_base;
+ __u64 flags;
+ __u64 pdptrs[4];
+};
+#define KVM_SREGS2_FLAGS_PDPTRS_VALID 1
+
+/* for KVM_GET_FPU and KVM_SET_FPU */
+struct kvm_fpu {
+ __u8 fpr[8][16];
+ __u16 fcw;
+ __u16 fsw;
+ __u8 ftwx; /* in fxsave format */
+ __u8 pad1;
+ __u16 last_opcode;
+ __u64 last_ip;
+ __u64 last_dp;
+ __u8 xmm[16][16];
+ __u32 mxcsr;
+ __u32 pad2;
+};
+
+struct kvm_msr_entry {
+ __u32 index;
+ __u32 reserved;
+ __u64 data;
+};
+
+/* for KVM_GET_MSRS and KVM_SET_MSRS */
+struct kvm_msrs {
+ __u32 nmsrs; /* number of msrs in entries */
+ __u32 pad;
+
+ struct kvm_msr_entry entries[];
+};
+
+/* for KVM_GET_MSR_INDEX_LIST */
+struct kvm_msr_list {
+ __u32 nmsrs; /* number of msrs in entries */
+ __u32 indices[];
+};
+
+/* Maximum size of any access bitmap in bytes */
+#define KVM_MSR_FILTER_MAX_BITMAP_SIZE 0x600
+
+/* for KVM_X86_SET_MSR_FILTER */
+struct kvm_msr_filter_range {
+#define KVM_MSR_FILTER_READ (1 << 0)
+#define KVM_MSR_FILTER_WRITE (1 << 1)
+#define KVM_MSR_FILTER_RANGE_VALID_MASK (KVM_MSR_FILTER_READ | \
+ KVM_MSR_FILTER_WRITE)
+ __u32 flags;
+ __u32 nmsrs; /* number of msrs in bitmap */
+ __u32 base; /* MSR index the bitmap starts at */
+ __u8 *bitmap; /* a 1 bit allows the operations in flags, 0 denies */
+};
+
+#define KVM_MSR_FILTER_MAX_RANGES 16
+struct kvm_msr_filter {
+#ifndef __KERNEL__
+#define KVM_MSR_FILTER_DEFAULT_ALLOW (0 << 0)
+#endif
+#define KVM_MSR_FILTER_DEFAULT_DENY (1 << 0)
+#define KVM_MSR_FILTER_VALID_MASK (KVM_MSR_FILTER_DEFAULT_DENY)
+ __u32 flags;
+ struct kvm_msr_filter_range ranges[KVM_MSR_FILTER_MAX_RANGES];
+};
+
+struct kvm_cpuid_entry {
+ __u32 function;
+ __u32 eax;
+ __u32 ebx;
+ __u32 ecx;
+ __u32 edx;
+ __u32 padding;
+};
+
+/* for KVM_SET_CPUID */
+struct kvm_cpuid {
+ __u32 nent;
+ __u32 padding;
+ struct kvm_cpuid_entry entries[];
+};
+
+struct kvm_cpuid_entry2 {
+ __u32 function;
+ __u32 index;
+ __u32 flags;
+ __u32 eax;
+ __u32 ebx;
+ __u32 ecx;
+ __u32 edx;
+ __u32 padding[3];
+};
+
+#define KVM_CPUID_FLAG_SIGNIFCANT_INDEX (1 << 0)
+#define KVM_CPUID_FLAG_STATEFUL_FUNC (1 << 1)
+#define KVM_CPUID_FLAG_STATE_READ_NEXT (1 << 2)
+
+/* for KVM_SET_CPUID2 */
+struct kvm_cpuid2 {
+ __u32 nent;
+ __u32 padding;
+ struct kvm_cpuid_entry2 entries[];
+};
+
+/* for KVM_GET_PIT and KVM_SET_PIT */
+struct kvm_pit_channel_state {
+ __u32 count; /* can be 65536 */
+ __u16 latched_count;
+ __u8 count_latched;
+ __u8 status_latched;
+ __u8 status;
+ __u8 read_state;
+ __u8 write_state;
+ __u8 write_latch;
+ __u8 rw_mode;
+ __u8 mode;
+ __u8 bcd;
+ __u8 gate;
+ __s64 count_load_time;
+};
+
+struct kvm_debug_exit_arch {
+ __u32 exception;
+ __u32 pad;
+ __u64 pc;
+ __u64 dr6;
+ __u64 dr7;
+};
+
+#define KVM_GUESTDBG_USE_SW_BP 0x00010000
+#define KVM_GUESTDBG_USE_HW_BP 0x00020000
+#define KVM_GUESTDBG_INJECT_DB 0x00040000
+#define KVM_GUESTDBG_INJECT_BP 0x00080000
+#define KVM_GUESTDBG_BLOCKIRQ 0x00100000
+
+/* for KVM_SET_GUEST_DEBUG */
+struct kvm_guest_debug_arch {
+ __u64 debugreg[8];
+};
+
+struct kvm_pit_state {
+ struct kvm_pit_channel_state channels[3];
+};
+
+#define KVM_PIT_FLAGS_HPET_LEGACY 0x00000001
+#define KVM_PIT_FLAGS_SPEAKER_DATA_ON 0x00000002
+
+struct kvm_pit_state2 {
+ struct kvm_pit_channel_state channels[3];
+ __u32 flags;
+ __u32 reserved[9];
+};
+
+struct kvm_reinject_control {
+ __u8 pit_reinject;
+ __u8 reserved[31];
+};
+
+/* When set in flags, include corresponding fields on KVM_SET_VCPU_EVENTS */
+#define KVM_VCPUEVENT_VALID_NMI_PENDING 0x00000001
+#define KVM_VCPUEVENT_VALID_SIPI_VECTOR 0x00000002
+#define KVM_VCPUEVENT_VALID_SHADOW 0x00000004
+#define KVM_VCPUEVENT_VALID_SMM 0x00000008
+#define KVM_VCPUEVENT_VALID_PAYLOAD 0x00000010
+#define KVM_VCPUEVENT_VALID_TRIPLE_FAULT 0x00000020
+
+/* Interrupt shadow states */
+#define KVM_X86_SHADOW_INT_MOV_SS 0x01
+#define KVM_X86_SHADOW_INT_STI 0x02
+
+/* for KVM_GET/SET_VCPU_EVENTS */
+struct kvm_vcpu_events {
+ struct {
+ __u8 injected;
+ __u8 nr;
+ __u8 has_error_code;
+ __u8 pending;
+ __u32 error_code;
+ } exception;
+ struct {
+ __u8 injected;
+ __u8 nr;
+ __u8 soft;
+ __u8 shadow;
+ } interrupt;
+ struct {
+ __u8 injected;
+ __u8 pending;
+ __u8 masked;
+ __u8 pad;
+ } nmi;
+ __u32 sipi_vector;
+ __u32 flags;
+ struct {
+ __u8 smm;
+ __u8 pending;
+ __u8 smm_inside_nmi;
+ __u8 latched_init;
+ } smi;
+ struct {
+ __u8 pending;
+ } triple_fault;
+ __u8 reserved[26];
+ __u8 exception_has_payload;
+ __u64 exception_payload;
+};
+
+/* for KVM_GET/SET_DEBUGREGS */
+struct kvm_debugregs {
+ __u64 db[4];
+ __u64 dr6;
+ __u64 dr7;
+ __u64 flags;
+ __u64 reserved[9];
+};
+
+/* for KVM_CAP_XSAVE and KVM_CAP_XSAVE2 */
+struct kvm_xsave {
+ /*
+ * KVM_GET_XSAVE2 and KVM_SET_XSAVE write and read as many bytes
+ * as are returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2)
+ * respectively, when invoked on the vm file descriptor.
+ *
+ * The size value returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2)
+ * will always be at least 4096. Currently, it is only greater
+ * than 4096 if a dynamic feature has been enabled with
+ * ``arch_prctl()``, but this may change in the future.
+ *
+ * The offsets of the state save areas in struct kvm_xsave follow
+ * the contents of CPUID leaf 0xD on the host.
+ */
+ __u32 region[1024];
+ __u32 extra[];
+};
+
+#define KVM_MAX_XCRS 16
+
+struct kvm_xcr {
+ __u32 xcr;
+ __u32 reserved;
+ __u64 value;
+};
+
+struct kvm_xcrs {
+ __u32 nr_xcrs;
+ __u32 flags;
+ struct kvm_xcr xcrs[KVM_MAX_XCRS];
+ __u64 padding[16];
+};
+
+#define KVM_SYNC_X86_REGS (1UL << 0)
+#define KVM_SYNC_X86_SREGS (1UL << 1)
+#define KVM_SYNC_X86_EVENTS (1UL << 2)
+
+#define KVM_SYNC_X86_VALID_FIELDS \
+ (KVM_SYNC_X86_REGS| \
+ KVM_SYNC_X86_SREGS| \
+ KVM_SYNC_X86_EVENTS)
+
+/* kvm_sync_regs struct included by kvm_run struct */
+struct kvm_sync_regs {
+ /* Members of this structure are potentially malicious.
+ * Care must be taken by code reading, esp. interpreting,
+ * data fields from them inside KVM to prevent TOCTOU and
+ * double-fetch types of vulnerabilities.
+ */
+ struct kvm_regs regs;
+ struct kvm_sregs sregs;
+ struct kvm_vcpu_events events;
+};
+
+#define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0)
+#define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1)
+#define KVM_X86_QUIRK_LAPIC_MMIO_HOLE (1 << 2)
+#define KVM_X86_QUIRK_OUT_7E_INC_RIP (1 << 3)
+#define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT (1 << 4)
+#define KVM_X86_QUIRK_FIX_HYPERCALL_INSN (1 << 5)
+#define KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS (1 << 6)
+
+#define KVM_STATE_NESTED_FORMAT_VMX 0
+#define KVM_STATE_NESTED_FORMAT_SVM 1
+
+#define KVM_STATE_NESTED_GUEST_MODE 0x00000001
+#define KVM_STATE_NESTED_RUN_PENDING 0x00000002
+#define KVM_STATE_NESTED_EVMCS 0x00000004
+#define KVM_STATE_NESTED_MTF_PENDING 0x00000008
+#define KVM_STATE_NESTED_GIF_SET 0x00000100
+
+#define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001
+#define KVM_STATE_NESTED_SMM_VMXON 0x00000002
+
+#define KVM_STATE_NESTED_VMX_VMCS_SIZE 0x1000
+
+#define KVM_STATE_NESTED_SVM_VMCB_SIZE 0x1000
+
+#define KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE 0x00000001
+
+/* attributes for system fd (group 0) */
+#define KVM_X86_XCOMP_GUEST_SUPP 0
+
+struct kvm_vmx_nested_state_data {
+ __u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];
+ __u8 shadow_vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];
+};
+
+struct kvm_vmx_nested_state_hdr {
+ __u64 vmxon_pa;
+ __u64 vmcs12_pa;
+
+ struct {
+ __u16 flags;
+ } smm;
+
+ __u16 pad;
+
+ __u32 flags;
+ __u64 preemption_timer_deadline;
+};
+
+struct kvm_svm_nested_state_data {
+ /* Save area only used if KVM_STATE_NESTED_RUN_PENDING. */
+ __u8 vmcb12[KVM_STATE_NESTED_SVM_VMCB_SIZE];
+};
+
+struct kvm_svm_nested_state_hdr {
+ __u64 vmcb_pa;
+};
+
+/* for KVM_CAP_NESTED_STATE */
+struct kvm_nested_state {
+ __u16 flags;
+ __u16 format;
+ __u32 size;
+
+ union {
+ struct kvm_vmx_nested_state_hdr vmx;
+ struct kvm_svm_nested_state_hdr svm;
+
+ /* Pad the header to 128 bytes. */
+ __u8 pad[120];
+ } hdr;
+
+ /*
+ * Define data region as 0 bytes to preserve backwards-compatability
+ * to old definition of kvm_nested_state in order to avoid changing
+ * KVM_{GET,PUT}_NESTED_STATE ioctl values.
+ */
+ union {
+ __DECLARE_FLEX_ARRAY(struct kvm_vmx_nested_state_data, vmx);
+ __DECLARE_FLEX_ARRAY(struct kvm_svm_nested_state_data, svm);
+ } data;
+};
+
+/* for KVM_CAP_PMU_EVENT_FILTER */
+struct kvm_pmu_event_filter {
+ __u32 action;
+ __u32 nevents;
+ __u32 fixed_counter_bitmap;
+ __u32 flags;
+ __u32 pad[4];
+ __u64 events[];
+};
+
+#define KVM_PMU_EVENT_ALLOW 0
+#define KVM_PMU_EVENT_DENY 1
+
+#define KVM_PMU_EVENT_FLAG_MASKED_EVENTS BIT(0)
+#define KVM_PMU_EVENT_FLAGS_VALID_MASK (KVM_PMU_EVENT_FLAG_MASKED_EVENTS)
+
+/*
+ * Masked event layout.
+ * Bits Description
+ * ---- -----------
+ * 7:0 event select (low bits)
+ * 15:8 umask match
+ * 31:16 unused
+ * 35:32 event select (high bits)
+ * 36:54 unused
+ * 55 exclude bit
+ * 63:56 umask mask
+ */
+
+#define KVM_PMU_ENCODE_MASKED_ENTRY(event_select, mask, match, exclude) \
+ (((event_select) & 0xFFULL) | (((event_select) & 0XF00ULL) << 24) | \
+ (((mask) & 0xFFULL) << 56) | \
+ (((match) & 0xFFULL) << 8) | \
+ ((__u64)(!!(exclude)) << 55))
+
+#define KVM_PMU_MASKED_ENTRY_EVENT_SELECT \
+ (GENMASK_ULL(7, 0) | GENMASK_ULL(35, 32))
+#define KVM_PMU_MASKED_ENTRY_UMASK_MASK (GENMASK_ULL(63, 56))
+#define KVM_PMU_MASKED_ENTRY_UMASK_MATCH (GENMASK_ULL(15, 8))
+#define KVM_PMU_MASKED_ENTRY_EXCLUDE (BIT_ULL(55))
+#define KVM_PMU_MASKED_ENTRY_UMASK_MASK_SHIFT (56)
+
+/* for KVM_{GET,SET,HAS}_DEVICE_ATTR */
+#define KVM_VCPU_TSC_CTRL 0 /* control group for the timestamp counter (TSC) */
+#define KVM_VCPU_TSC_OFFSET 0 /* attribute for the TSC offset */
+
+/* x86-specific KVM_EXIT_HYPERCALL flags. */
+#define KVM_EXIT_HYPERCALL_LONG_MODE BIT(0)
+
+#endif /* _ASM_X86_KVM_H */
diff --git a/arch/x86/include/uapi/asm/kvm_para.h b/arch/x86/include/uapi/asm/kvm_para.h
new file mode 100644
index 000000000000..6e64b27b2c1e
--- /dev/null
+++ b/arch/x86/include/uapi/asm/kvm_para.h
@@ -0,0 +1,153 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_KVM_PARA_H
+#define _UAPI_ASM_X86_KVM_PARA_H
+
+#include <linux/types.h>
+
+/* This CPUID returns the signature 'KVMKVMKVM' in ebx, ecx, and edx. It
+ * should be used to determine that a VM is running under KVM.
+ */
+#define KVM_CPUID_SIGNATURE 0x40000000
+#define KVM_SIGNATURE "KVMKVMKVM\0\0\0"
+
+/* This CPUID returns two feature bitmaps in eax, edx. Before enabling
+ * a particular paravirtualization, the appropriate feature bit should
+ * be checked in eax. The performance hint feature bit should be checked
+ * in edx.
+ */
+#define KVM_CPUID_FEATURES 0x40000001
+#define KVM_FEATURE_CLOCKSOURCE 0
+#define KVM_FEATURE_NOP_IO_DELAY 1
+#define KVM_FEATURE_MMU_OP 2
+/* This indicates that the new set of kvmclock msrs
+ * are available. The use of 0x11 and 0x12 is deprecated
+ */
+#define KVM_FEATURE_CLOCKSOURCE2 3
+#define KVM_FEATURE_ASYNC_PF 4
+#define KVM_FEATURE_STEAL_TIME 5
+#define KVM_FEATURE_PV_EOI 6
+#define KVM_FEATURE_PV_UNHALT 7
+#define KVM_FEATURE_PV_TLB_FLUSH 9
+#define KVM_FEATURE_ASYNC_PF_VMEXIT 10
+#define KVM_FEATURE_PV_SEND_IPI 11
+#define KVM_FEATURE_POLL_CONTROL 12
+#define KVM_FEATURE_PV_SCHED_YIELD 13
+#define KVM_FEATURE_ASYNC_PF_INT 14
+#define KVM_FEATURE_MSI_EXT_DEST_ID 15
+#define KVM_FEATURE_HC_MAP_GPA_RANGE 16
+#define KVM_FEATURE_MIGRATION_CONTROL 17
+
+#define KVM_HINTS_REALTIME 0
+
+/* The last 8 bits are used to indicate how to interpret the flags field
+ * in pvclock structure. If no bits are set, all flags are ignored.
+ */
+#define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 24
+
+#define MSR_KVM_WALL_CLOCK 0x11
+#define MSR_KVM_SYSTEM_TIME 0x12
+
+#define KVM_MSR_ENABLED 1
+/* Custom MSRs falls in the range 0x4b564d00-0x4b564dff */
+#define MSR_KVM_WALL_CLOCK_NEW 0x4b564d00
+#define MSR_KVM_SYSTEM_TIME_NEW 0x4b564d01
+#define MSR_KVM_ASYNC_PF_EN 0x4b564d02
+#define MSR_KVM_STEAL_TIME 0x4b564d03
+#define MSR_KVM_PV_EOI_EN 0x4b564d04
+#define MSR_KVM_POLL_CONTROL 0x4b564d05
+#define MSR_KVM_ASYNC_PF_INT 0x4b564d06
+#define MSR_KVM_ASYNC_PF_ACK 0x4b564d07
+#define MSR_KVM_MIGRATION_CONTROL 0x4b564d08
+
+struct kvm_steal_time {
+ __u64 steal;
+ __u32 version;
+ __u32 flags;
+ __u8 preempted;
+ __u8 u8_pad[3];
+ __u32 pad[11];
+};
+
+#define KVM_VCPU_PREEMPTED (1 << 0)
+#define KVM_VCPU_FLUSH_TLB (1 << 1)
+
+#define KVM_CLOCK_PAIRING_WALLCLOCK 0
+struct kvm_clock_pairing {
+ __s64 sec;
+ __s64 nsec;
+ __u64 tsc;
+ __u32 flags;
+ __u32 pad[9];
+};
+
+#define KVM_STEAL_ALIGNMENT_BITS 5
+#define KVM_STEAL_VALID_BITS ((-1ULL << (KVM_STEAL_ALIGNMENT_BITS + 1)))
+#define KVM_STEAL_RESERVED_MASK (((1 << KVM_STEAL_ALIGNMENT_BITS) - 1 ) << 1)
+
+#define KVM_MAX_MMU_OP_BATCH 32
+
+#define KVM_ASYNC_PF_ENABLED (1 << 0)
+#define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1)
+#define KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT (1 << 2)
+#define KVM_ASYNC_PF_DELIVERY_AS_INT (1 << 3)
+
+/* MSR_KVM_ASYNC_PF_INT */
+#define KVM_ASYNC_PF_VEC_MASK GENMASK(7, 0)
+
+/* MSR_KVM_MIGRATION_CONTROL */
+#define KVM_MIGRATION_READY (1 << 0)
+
+/* KVM_HC_MAP_GPA_RANGE */
+#define KVM_MAP_GPA_RANGE_PAGE_SZ_4K 0
+#define KVM_MAP_GPA_RANGE_PAGE_SZ_2M (1 << 0)
+#define KVM_MAP_GPA_RANGE_PAGE_SZ_1G (1 << 1)
+#define KVM_MAP_GPA_RANGE_ENC_STAT(n) (n << 4)
+#define KVM_MAP_GPA_RANGE_ENCRYPTED KVM_MAP_GPA_RANGE_ENC_STAT(1)
+#define KVM_MAP_GPA_RANGE_DECRYPTED KVM_MAP_GPA_RANGE_ENC_STAT(0)
+
+/* Operations for KVM_HC_MMU_OP */
+#define KVM_MMU_OP_WRITE_PTE 1
+#define KVM_MMU_OP_FLUSH_TLB 2
+#define KVM_MMU_OP_RELEASE_PT 3
+
+/* Payload for KVM_HC_MMU_OP */
+struct kvm_mmu_op_header {
+ __u32 op;
+ __u32 pad;
+};
+
+struct kvm_mmu_op_write_pte {
+ struct kvm_mmu_op_header header;
+ __u64 pte_phys;
+ __u64 pte_val;
+};
+
+struct kvm_mmu_op_flush_tlb {
+ struct kvm_mmu_op_header header;
+};
+
+struct kvm_mmu_op_release_pt {
+ struct kvm_mmu_op_header header;
+ __u64 pt_phys;
+};
+
+#define KVM_PV_REASON_PAGE_NOT_PRESENT 1
+#define KVM_PV_REASON_PAGE_READY 2
+
+struct kvm_vcpu_pv_apf_data {
+ /* Used for 'page not present' events delivered via #PF */
+ __u32 flags;
+
+ /* Used for 'page ready' events delivered via interrupt notification */
+ __u32 token;
+
+ __u8 pad[56];
+ __u32 enabled;
+};
+
+#define KVM_PV_EOI_BIT 0
+#define KVM_PV_EOI_MASK (0x1 << KVM_PV_EOI_BIT)
+#define KVM_PV_EOI_ENABLED KVM_PV_EOI_MASK
+#define KVM_PV_EOI_DISABLED 0x0
+
+#endif /* _UAPI_ASM_X86_KVM_PARA_H */
diff --git a/arch/x86/include/uapi/asm/kvm_perf.h b/arch/x86/include/uapi/asm/kvm_perf.h
new file mode 100644
index 000000000000..125cf5cdf6c5
--- /dev/null
+++ b/arch/x86/include/uapi/asm/kvm_perf.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_KVM_PERF_H
+#define _ASM_X86_KVM_PERF_H
+
+#include <asm/svm.h>
+#include <asm/vmx.h>
+#include <asm/kvm.h>
+
+#define DECODE_STR_LEN 20
+
+#define VCPU_ID "vcpu_id"
+
+#define KVM_ENTRY_TRACE "kvm:kvm_entry"
+#define KVM_EXIT_TRACE "kvm:kvm_exit"
+#define KVM_EXIT_REASON "exit_reason"
+
+#endif /* _ASM_X86_KVM_PERF_H */
diff --git a/arch/x86/include/asm/ldt.h b/arch/x86/include/uapi/asm/ldt.h
index 46727eb37bfe..d62ac5db093b 100644
--- a/arch/x86/include/asm/ldt.h
+++ b/arch/x86/include/uapi/asm/ldt.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* ldt.h
*
@@ -28,6 +29,13 @@ struct user_desc {
unsigned int seg_not_present:1;
unsigned int useable:1;
#ifdef __x86_64__
+ /*
+ * Because this bit is not present in 32-bit user code, user
+ * programs can pass uninitialized values here. Therefore, in
+ * any context in which a user_desc comes from a 32-bit program,
+ * the kernel must act as though lm == 0, regardless of the
+ * actual value.
+ */
unsigned int lm:1;
#endif
};
diff --git a/arch/x86/include/uapi/asm/mce.h b/arch/x86/include/uapi/asm/mce.h
new file mode 100644
index 000000000000..db9adc081c5a
--- /dev/null
+++ b/arch/x86/include/uapi/asm/mce.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_MCE_H
+#define _UAPI_ASM_X86_MCE_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/*
+ * Fields are zero when not available. Also, this struct is shared with
+ * userspace mcelog and thus must keep existing fields at current offsets.
+ * Only add new fields to the end of the structure
+ */
+struct mce {
+ __u64 status; /* Bank's MCi_STATUS MSR */
+ __u64 misc; /* Bank's MCi_MISC MSR */
+ __u64 addr; /* Bank's MCi_ADDR MSR */
+ __u64 mcgstatus; /* Machine Check Global Status MSR */
+ __u64 ip; /* Instruction Pointer when the error happened */
+ __u64 tsc; /* CPU time stamp counter */
+ __u64 time; /* Wall time_t when error was detected */
+ __u8 cpuvendor; /* Kernel's X86_VENDOR enum */
+ __u8 inject_flags; /* Software inject flags */
+ __u8 severity; /* Error severity */
+ __u8 pad;
+ __u32 cpuid; /* CPUID 1 EAX */
+ __u8 cs; /* Code segment */
+ __u8 bank; /* Machine check bank reporting the error */
+ __u8 cpu; /* CPU number; obsoleted by extcpu */
+ __u8 finished; /* Entry is valid */
+ __u32 extcpu; /* Linux CPU number that detected the error */
+ __u32 socketid; /* CPU socket ID */
+ __u32 apicid; /* CPU initial APIC ID */
+ __u64 mcgcap; /* MCGCAP MSR: machine check capabilities of CPU */
+ __u64 synd; /* MCA_SYND MSR: only valid on SMCA systems */
+ __u64 ipid; /* MCA_IPID MSR: only valid on SMCA systems */
+ __u64 ppin; /* Protected Processor Inventory Number */
+ __u32 microcode; /* Microcode revision */
+ __u64 kflags; /* Internal kernel use */
+};
+
+#define MCE_GET_RECORD_LEN _IOR('M', 1, int)
+#define MCE_GET_LOG_LEN _IOR('M', 2, int)
+#define MCE_GETCLEAR_FLAGS _IOR('M', 3, int)
+
+#endif /* _UAPI_ASM_X86_MCE_H */
diff --git a/arch/x86/include/uapi/asm/mman.h b/arch/x86/include/uapi/asm/mman.h
new file mode 100644
index 000000000000..775dbd3aff73
--- /dev/null
+++ b/arch/x86/include/uapi/asm/mman.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_MMAN_H
+#define _ASM_X86_MMAN_H
+
+#define MAP_32BIT 0x40 /* only give out 32bit addresses */
+
+#ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS
+#define arch_calc_vm_prot_bits(prot, key) ( \
+ ((key) & 0x1 ? VM_PKEY_BIT0 : 0) | \
+ ((key) & 0x2 ? VM_PKEY_BIT1 : 0) | \
+ ((key) & 0x4 ? VM_PKEY_BIT2 : 0) | \
+ ((key) & 0x8 ? VM_PKEY_BIT3 : 0))
+#endif
+
+#include <asm-generic/mman.h>
+
+#endif /* _ASM_X86_MMAN_H */
diff --git a/arch/x86/include/uapi/asm/msgbuf.h b/arch/x86/include/uapi/asm/msgbuf.h
new file mode 100644
index 000000000000..ac83e25bbf37
--- /dev/null
+++ b/arch/x86/include/uapi/asm/msgbuf.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __ASM_X64_MSGBUF_H
+#define __ASM_X64_MSGBUF_H
+
+#if !defined(__x86_64__) || !defined(__ILP32__)
+#include <asm-generic/msgbuf.h>
+#else
+
+#include <asm/ipcbuf.h>
+
+/*
+ * The msqid64_ds structure for x86 architecture with x32 ABI.
+ *
+ * On x86-32 and x86-64 we can just use the generic definition, but
+ * x32 uses the same binary layout as x86_64, which is different
+ * from other 32-bit architectures.
+ */
+
+struct msqid64_ds {
+ struct ipc64_perm msg_perm;
+ __kernel_long_t msg_stime; /* last msgsnd time */
+ __kernel_long_t msg_rtime; /* last msgrcv time */
+ __kernel_long_t msg_ctime; /* last change time */
+ __kernel_ulong_t msg_cbytes; /* current number of bytes on queue */
+ __kernel_ulong_t msg_qnum; /* number of messages in queue */
+ __kernel_ulong_t msg_qbytes; /* max number of bytes on queue */
+ __kernel_pid_t msg_lspid; /* pid of last msgsnd */
+ __kernel_pid_t msg_lrpid; /* last receive pid */
+ __kernel_ulong_t __unused4;
+ __kernel_ulong_t __unused5;
+};
+
+#endif
+
+#endif /* __ASM_GENERIC_MSGBUF_H */
diff --git a/arch/x86/include/uapi/asm/msr.h b/arch/x86/include/uapi/asm/msr.h
new file mode 100644
index 000000000000..e7516b402a00
--- /dev/null
+++ b/arch/x86/include/uapi/asm/msr.h
@@ -0,0 +1,14 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_MSR_H
+#define _UAPI_ASM_X86_MSR_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#define X86_IOC_RDMSR_REGS _IOWR('c', 0xA0, __u32[8])
+#define X86_IOC_WRMSR_REGS _IOWR('c', 0xA1, __u32[8])
+
+#endif /* __ASSEMBLY__ */
+#endif /* _UAPI_ASM_X86_MSR_H */
diff --git a/arch/x86/include/uapi/asm/mtrr.h b/arch/x86/include/uapi/asm/mtrr.h
new file mode 100644
index 000000000000..376563f2bac1
--- /dev/null
+++ b/arch/x86/include/uapi/asm/mtrr.h
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: LGPL-2.0+ WITH Linux-syscall-note */
+/* Generic MTRR (Memory Type Range Register) ioctls.
+
+ Copyright (C) 1997-1999 Richard Gooch
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this library; if not, write to the Free
+ Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+ Richard Gooch may be reached by email at rgooch@atnf.csiro.au
+ The postal address is:
+ Richard Gooch, c/o ATNF, P. O. Box 76, Epping, N.S.W., 2121, Australia.
+*/
+#ifndef _UAPI_ASM_X86_MTRR_H
+#define _UAPI_ASM_X86_MTRR_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+#include <linux/errno.h>
+
+#define MTRR_IOCTL_BASE 'M'
+
+/* Warning: this structure has a different order from i386
+ on x86-64. The 32bit emulation code takes care of that.
+ But you need to use this for 64bit, otherwise your X server
+ will break. */
+
+#ifdef __i386__
+struct mtrr_sentry {
+ unsigned long base; /* Base address */
+ unsigned int size; /* Size of region */
+ unsigned int type; /* Type of region */
+};
+
+struct mtrr_gentry {
+ unsigned int regnum; /* Register number */
+ unsigned long base; /* Base address */
+ unsigned int size; /* Size of region */
+ unsigned int type; /* Type of region */
+};
+
+#else /* __i386__ */
+
+struct mtrr_sentry {
+ __u64 base; /* Base address */
+ __u32 size; /* Size of region */
+ __u32 type; /* Type of region */
+};
+
+struct mtrr_gentry {
+ __u64 base; /* Base address */
+ __u32 size; /* Size of region */
+ __u32 regnum; /* Register number */
+ __u32 type; /* Type of region */
+ __u32 _pad; /* Unused */
+};
+
+#endif /* !__i386__ */
+
+struct mtrr_var_range {
+ __u32 base_lo;
+ __u32 base_hi;
+ __u32 mask_lo;
+ __u32 mask_hi;
+};
+
+/* In the Intel processor's MTRR interface, the MTRR type is always held in
+ an 8 bit field: */
+typedef __u8 mtrr_type;
+
+#define MTRR_NUM_FIXED_RANGES 88
+#define MTRR_MAX_VAR_RANGES 256
+
+struct mtrr_state_type {
+ struct mtrr_var_range var_ranges[MTRR_MAX_VAR_RANGES];
+ mtrr_type fixed_ranges[MTRR_NUM_FIXED_RANGES];
+ unsigned char enabled;
+ unsigned char have_fixed;
+ mtrr_type def_type;
+};
+
+#define MTRRphysBase_MSR(reg) (0x200 + 2 * (reg))
+#define MTRRphysMask_MSR(reg) (0x200 + 2 * (reg) + 1)
+
+/* These are the various ioctls */
+#define MTRRIOC_ADD_ENTRY _IOW(MTRR_IOCTL_BASE, 0, struct mtrr_sentry)
+#define MTRRIOC_SET_ENTRY _IOW(MTRR_IOCTL_BASE, 1, struct mtrr_sentry)
+#define MTRRIOC_DEL_ENTRY _IOW(MTRR_IOCTL_BASE, 2, struct mtrr_sentry)
+#define MTRRIOC_GET_ENTRY _IOWR(MTRR_IOCTL_BASE, 3, struct mtrr_gentry)
+#define MTRRIOC_KILL_ENTRY _IOW(MTRR_IOCTL_BASE, 4, struct mtrr_sentry)
+#define MTRRIOC_ADD_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 5, struct mtrr_sentry)
+#define MTRRIOC_SET_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 6, struct mtrr_sentry)
+#define MTRRIOC_DEL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 7, struct mtrr_sentry)
+#define MTRRIOC_GET_PAGE_ENTRY _IOWR(MTRR_IOCTL_BASE, 8, struct mtrr_gentry)
+#define MTRRIOC_KILL_PAGE_ENTRY _IOW(MTRR_IOCTL_BASE, 9, struct mtrr_sentry)
+
+/* MTRR memory types, which are defined in SDM */
+#define MTRR_TYPE_UNCACHABLE 0
+#define MTRR_TYPE_WRCOMB 1
+/*#define MTRR_TYPE_ 2*/
+/*#define MTRR_TYPE_ 3*/
+#define MTRR_TYPE_WRTHROUGH 4
+#define MTRR_TYPE_WRPROT 5
+#define MTRR_TYPE_WRBACK 6
+#define MTRR_NUM_TYPES 7
+
+/*
+ * Invalid MTRR memory type. mtrr_type_lookup() returns this value when
+ * MTRRs are disabled. Note, this value is allocated from the reserved
+ * values (0x7-0xff) of the MTRR memory types.
+ */
+#define MTRR_TYPE_INVALID 0xff
+
+#endif /* _UAPI_ASM_X86_MTRR_H */
diff --git a/arch/x86/include/uapi/asm/perf_regs.h b/arch/x86/include/uapi/asm/perf_regs.h
new file mode 100644
index 000000000000..7c9d2bb3833b
--- /dev/null
+++ b/arch/x86/include/uapi/asm/perf_regs.h
@@ -0,0 +1,58 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_PERF_REGS_H
+#define _ASM_X86_PERF_REGS_H
+
+enum perf_event_x86_regs {
+ PERF_REG_X86_AX,
+ PERF_REG_X86_BX,
+ PERF_REG_X86_CX,
+ PERF_REG_X86_DX,
+ PERF_REG_X86_SI,
+ PERF_REG_X86_DI,
+ PERF_REG_X86_BP,
+ PERF_REG_X86_SP,
+ PERF_REG_X86_IP,
+ PERF_REG_X86_FLAGS,
+ PERF_REG_X86_CS,
+ PERF_REG_X86_SS,
+ PERF_REG_X86_DS,
+ PERF_REG_X86_ES,
+ PERF_REG_X86_FS,
+ PERF_REG_X86_GS,
+ PERF_REG_X86_R8,
+ PERF_REG_X86_R9,
+ PERF_REG_X86_R10,
+ PERF_REG_X86_R11,
+ PERF_REG_X86_R12,
+ PERF_REG_X86_R13,
+ PERF_REG_X86_R14,
+ PERF_REG_X86_R15,
+ /* These are the limits for the GPRs. */
+ PERF_REG_X86_32_MAX = PERF_REG_X86_GS + 1,
+ PERF_REG_X86_64_MAX = PERF_REG_X86_R15 + 1,
+
+ /* These all need two bits set because they are 128bit */
+ PERF_REG_X86_XMM0 = 32,
+ PERF_REG_X86_XMM1 = 34,
+ PERF_REG_X86_XMM2 = 36,
+ PERF_REG_X86_XMM3 = 38,
+ PERF_REG_X86_XMM4 = 40,
+ PERF_REG_X86_XMM5 = 42,
+ PERF_REG_X86_XMM6 = 44,
+ PERF_REG_X86_XMM7 = 46,
+ PERF_REG_X86_XMM8 = 48,
+ PERF_REG_X86_XMM9 = 50,
+ PERF_REG_X86_XMM10 = 52,
+ PERF_REG_X86_XMM11 = 54,
+ PERF_REG_X86_XMM12 = 56,
+ PERF_REG_X86_XMM13 = 58,
+ PERF_REG_X86_XMM14 = 60,
+ PERF_REG_X86_XMM15 = 62,
+
+ /* These include both GPRs and XMMX registers */
+ PERF_REG_X86_XMM_MAX = PERF_REG_X86_XMM15 + 2,
+};
+
+#define PERF_REG_EXTENDED_MASK (~((1ULL << PERF_REG_X86_XMM0) - 1))
+
+#endif /* _ASM_X86_PERF_REGS_H */
diff --git a/arch/x86/include/uapi/asm/posix_types.h b/arch/x86/include/uapi/asm/posix_types.h
new file mode 100644
index 000000000000..c661e95f0134
--- /dev/null
+++ b/arch/x86/include/uapi/asm/posix_types.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __KERNEL__
+# ifdef __i386__
+# include <asm/posix_types_32.h>
+# elif defined(__ILP32__)
+# include <asm/posix_types_x32.h>
+# else
+# include <asm/posix_types_64.h>
+# endif
+#endif
diff --git a/arch/x86/include/uapi/asm/posix_types_32.h b/arch/x86/include/uapi/asm/posix_types_32.h
new file mode 100644
index 000000000000..840659f4b96f
--- /dev/null
+++ b/arch/x86/include/uapi/asm/posix_types_32.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_POSIX_TYPES_32_H
+#define _ASM_X86_POSIX_TYPES_32_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc. Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned short __kernel_mode_t;
+#define __kernel_mode_t __kernel_mode_t
+
+typedef unsigned short __kernel_ipc_pid_t;
+#define __kernel_ipc_pid_t __kernel_ipc_pid_t
+
+typedef unsigned short __kernel_uid_t;
+typedef unsigned short __kernel_gid_t;
+#define __kernel_uid_t __kernel_uid_t
+
+typedef unsigned short __kernel_old_dev_t;
+#define __kernel_old_dev_t __kernel_old_dev_t
+
+#include <asm-generic/posix_types.h>
+
+#endif /* _ASM_X86_POSIX_TYPES_32_H */
diff --git a/arch/x86/include/uapi/asm/posix_types_64.h b/arch/x86/include/uapi/asm/posix_types_64.h
new file mode 100644
index 000000000000..515afb8059ce
--- /dev/null
+++ b/arch/x86/include/uapi/asm/posix_types_64.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_POSIX_TYPES_64_H
+#define _ASM_X86_POSIX_TYPES_64_H
+
+/*
+ * This file is generally used by user-level software, so you need to
+ * be a little careful about namespace pollution etc. Also, we cannot
+ * assume GCC is being used.
+ */
+
+typedef unsigned short __kernel_old_uid_t;
+typedef unsigned short __kernel_old_gid_t;
+#define __kernel_old_uid_t __kernel_old_uid_t
+
+typedef unsigned long __kernel_old_dev_t;
+#define __kernel_old_dev_t __kernel_old_dev_t
+
+#include <asm-generic/posix_types.h>
+
+#endif /* _ASM_X86_POSIX_TYPES_64_H */
diff --git a/arch/x86/include/uapi/asm/posix_types_x32.h b/arch/x86/include/uapi/asm/posix_types_x32.h
new file mode 100644
index 000000000000..f60479b07fc8
--- /dev/null
+++ b/arch/x86/include/uapi/asm/posix_types_x32.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_POSIX_TYPES_X32_H
+#define _ASM_X86_POSIX_TYPES_X32_H
+
+/*
+ * This file is only used by user-level software, so you need to
+ * be a little careful about namespace pollution etc. Also, we cannot
+ * assume GCC is being used.
+ *
+ * These types should generally match the ones used by the 64-bit kernel,
+ *
+ */
+
+typedef long long __kernel_long_t;
+typedef unsigned long long __kernel_ulong_t;
+#define __kernel_long_t __kernel_long_t
+
+#include <asm/posix_types_64.h>
+
+#endif /* _ASM_X86_POSIX_TYPES_X32_H */
diff --git a/arch/x86/include/uapi/asm/prctl.h b/arch/x86/include/uapi/asm/prctl.h
new file mode 100644
index 000000000000..e8d7ebbca1a4
--- /dev/null
+++ b/arch/x86/include/uapi/asm/prctl.h
@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_PRCTL_H
+#define _ASM_X86_PRCTL_H
+
+#define ARCH_SET_GS 0x1001
+#define ARCH_SET_FS 0x1002
+#define ARCH_GET_FS 0x1003
+#define ARCH_GET_GS 0x1004
+
+#define ARCH_GET_CPUID 0x1011
+#define ARCH_SET_CPUID 0x1012
+
+#define ARCH_GET_XCOMP_SUPP 0x1021
+#define ARCH_GET_XCOMP_PERM 0x1022
+#define ARCH_REQ_XCOMP_PERM 0x1023
+#define ARCH_GET_XCOMP_GUEST_PERM 0x1024
+#define ARCH_REQ_XCOMP_GUEST_PERM 0x1025
+
+#define ARCH_XCOMP_TILECFG 17
+#define ARCH_XCOMP_TILEDATA 18
+
+#define ARCH_MAP_VDSO_X32 0x2001
+#define ARCH_MAP_VDSO_32 0x2002
+#define ARCH_MAP_VDSO_64 0x2003
+
+#define ARCH_GET_UNTAG_MASK 0x4001
+#define ARCH_ENABLE_TAGGED_ADDR 0x4002
+#define ARCH_GET_MAX_TAG_BITS 0x4003
+#define ARCH_FORCE_TAGGED_SVA 0x4004
+
+#endif /* _ASM_X86_PRCTL_H */
diff --git a/arch/x86/include/uapi/asm/processor-flags.h b/arch/x86/include/uapi/asm/processor-flags.h
new file mode 100644
index 000000000000..d898432947ff
--- /dev/null
+++ b/arch/x86/include/uapi/asm/processor-flags.h
@@ -0,0 +1,174 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_PROCESSOR_FLAGS_H
+#define _UAPI_ASM_X86_PROCESSOR_FLAGS_H
+/* Various flags defined: can be included from assembler. */
+
+#include <linux/const.h>
+
+/*
+ * EFLAGS bits
+ */
+#define X86_EFLAGS_CF_BIT 0 /* Carry Flag */
+#define X86_EFLAGS_CF _BITUL(X86_EFLAGS_CF_BIT)
+#define X86_EFLAGS_FIXED_BIT 1 /* Bit 1 - always on */
+#define X86_EFLAGS_FIXED _BITUL(X86_EFLAGS_FIXED_BIT)
+#define X86_EFLAGS_PF_BIT 2 /* Parity Flag */
+#define X86_EFLAGS_PF _BITUL(X86_EFLAGS_PF_BIT)
+#define X86_EFLAGS_AF_BIT 4 /* Auxiliary carry Flag */
+#define X86_EFLAGS_AF _BITUL(X86_EFLAGS_AF_BIT)
+#define X86_EFLAGS_ZF_BIT 6 /* Zero Flag */
+#define X86_EFLAGS_ZF _BITUL(X86_EFLAGS_ZF_BIT)
+#define X86_EFLAGS_SF_BIT 7 /* Sign Flag */
+#define X86_EFLAGS_SF _BITUL(X86_EFLAGS_SF_BIT)
+#define X86_EFLAGS_TF_BIT 8 /* Trap Flag */
+#define X86_EFLAGS_TF _BITUL(X86_EFLAGS_TF_BIT)
+#define X86_EFLAGS_IF_BIT 9 /* Interrupt Flag */
+#define X86_EFLAGS_IF _BITUL(X86_EFLAGS_IF_BIT)
+#define X86_EFLAGS_DF_BIT 10 /* Direction Flag */
+#define X86_EFLAGS_DF _BITUL(X86_EFLAGS_DF_BIT)
+#define X86_EFLAGS_OF_BIT 11 /* Overflow Flag */
+#define X86_EFLAGS_OF _BITUL(X86_EFLAGS_OF_BIT)
+#define X86_EFLAGS_IOPL_BIT 12 /* I/O Privilege Level (2 bits) */
+#define X86_EFLAGS_IOPL (_AC(3,UL) << X86_EFLAGS_IOPL_BIT)
+#define X86_EFLAGS_NT_BIT 14 /* Nested Task */
+#define X86_EFLAGS_NT _BITUL(X86_EFLAGS_NT_BIT)
+#define X86_EFLAGS_RF_BIT 16 /* Resume Flag */
+#define X86_EFLAGS_RF _BITUL(X86_EFLAGS_RF_BIT)
+#define X86_EFLAGS_VM_BIT 17 /* Virtual Mode */
+#define X86_EFLAGS_VM _BITUL(X86_EFLAGS_VM_BIT)
+#define X86_EFLAGS_AC_BIT 18 /* Alignment Check/Access Control */
+#define X86_EFLAGS_AC _BITUL(X86_EFLAGS_AC_BIT)
+#define X86_EFLAGS_VIF_BIT 19 /* Virtual Interrupt Flag */
+#define X86_EFLAGS_VIF _BITUL(X86_EFLAGS_VIF_BIT)
+#define X86_EFLAGS_VIP_BIT 20 /* Virtual Interrupt Pending */
+#define X86_EFLAGS_VIP _BITUL(X86_EFLAGS_VIP_BIT)
+#define X86_EFLAGS_ID_BIT 21 /* CPUID detection */
+#define X86_EFLAGS_ID _BITUL(X86_EFLAGS_ID_BIT)
+
+/*
+ * Basic CPU control in CR0
+ */
+#define X86_CR0_PE_BIT 0 /* Protection Enable */
+#define X86_CR0_PE _BITUL(X86_CR0_PE_BIT)
+#define X86_CR0_MP_BIT 1 /* Monitor Coprocessor */
+#define X86_CR0_MP _BITUL(X86_CR0_MP_BIT)
+#define X86_CR0_EM_BIT 2 /* Emulation */
+#define X86_CR0_EM _BITUL(X86_CR0_EM_BIT)
+#define X86_CR0_TS_BIT 3 /* Task Switched */
+#define X86_CR0_TS _BITUL(X86_CR0_TS_BIT)
+#define X86_CR0_ET_BIT 4 /* Extension Type */
+#define X86_CR0_ET _BITUL(X86_CR0_ET_BIT)
+#define X86_CR0_NE_BIT 5 /* Numeric Error */
+#define X86_CR0_NE _BITUL(X86_CR0_NE_BIT)
+#define X86_CR0_WP_BIT 16 /* Write Protect */
+#define X86_CR0_WP _BITUL(X86_CR0_WP_BIT)
+#define X86_CR0_AM_BIT 18 /* Alignment Mask */
+#define X86_CR0_AM _BITUL(X86_CR0_AM_BIT)
+#define X86_CR0_NW_BIT 29 /* Not Write-through */
+#define X86_CR0_NW _BITUL(X86_CR0_NW_BIT)
+#define X86_CR0_CD_BIT 30 /* Cache Disable */
+#define X86_CR0_CD _BITUL(X86_CR0_CD_BIT)
+#define X86_CR0_PG_BIT 31 /* Paging */
+#define X86_CR0_PG _BITUL(X86_CR0_PG_BIT)
+
+/*
+ * Paging options in CR3
+ */
+#define X86_CR3_PWT_BIT 3 /* Page Write Through */
+#define X86_CR3_PWT _BITUL(X86_CR3_PWT_BIT)
+#define X86_CR3_PCD_BIT 4 /* Page Cache Disable */
+#define X86_CR3_PCD _BITUL(X86_CR3_PCD_BIT)
+
+#define X86_CR3_PCID_BITS 12
+#define X86_CR3_PCID_MASK (_AC((1UL << X86_CR3_PCID_BITS) - 1, UL))
+
+#define X86_CR3_LAM_U57_BIT 61 /* Activate LAM for userspace, 62:57 bits masked */
+#define X86_CR3_LAM_U57 _BITULL(X86_CR3_LAM_U57_BIT)
+#define X86_CR3_LAM_U48_BIT 62 /* Activate LAM for userspace, 62:48 bits masked */
+#define X86_CR3_LAM_U48 _BITULL(X86_CR3_LAM_U48_BIT)
+#define X86_CR3_PCID_NOFLUSH_BIT 63 /* Preserve old PCID */
+#define X86_CR3_PCID_NOFLUSH _BITULL(X86_CR3_PCID_NOFLUSH_BIT)
+
+/*
+ * Intel CPU features in CR4
+ */
+#define X86_CR4_VME_BIT 0 /* enable vm86 extensions */
+#define X86_CR4_VME _BITUL(X86_CR4_VME_BIT)
+#define X86_CR4_PVI_BIT 1 /* virtual interrupts flag enable */
+#define X86_CR4_PVI _BITUL(X86_CR4_PVI_BIT)
+#define X86_CR4_TSD_BIT 2 /* disable time stamp at ipl 3 */
+#define X86_CR4_TSD _BITUL(X86_CR4_TSD_BIT)
+#define X86_CR4_DE_BIT 3 /* enable debugging extensions */
+#define X86_CR4_DE _BITUL(X86_CR4_DE_BIT)
+#define X86_CR4_PSE_BIT 4 /* enable page size extensions */
+#define X86_CR4_PSE _BITUL(X86_CR4_PSE_BIT)
+#define X86_CR4_PAE_BIT 5 /* enable physical address extensions */
+#define X86_CR4_PAE _BITUL(X86_CR4_PAE_BIT)
+#define X86_CR4_MCE_BIT 6 /* Machine check enable */
+#define X86_CR4_MCE _BITUL(X86_CR4_MCE_BIT)
+#define X86_CR4_PGE_BIT 7 /* enable global pages */
+#define X86_CR4_PGE _BITUL(X86_CR4_PGE_BIT)
+#define X86_CR4_PCE_BIT 8 /* enable performance counters at ipl 3 */
+#define X86_CR4_PCE _BITUL(X86_CR4_PCE_BIT)
+#define X86_CR4_OSFXSR_BIT 9 /* enable fast FPU save and restore */
+#define X86_CR4_OSFXSR _BITUL(X86_CR4_OSFXSR_BIT)
+#define X86_CR4_OSXMMEXCPT_BIT 10 /* enable unmasked SSE exceptions */
+#define X86_CR4_OSXMMEXCPT _BITUL(X86_CR4_OSXMMEXCPT_BIT)
+#define X86_CR4_UMIP_BIT 11 /* enable UMIP support */
+#define X86_CR4_UMIP _BITUL(X86_CR4_UMIP_BIT)
+#define X86_CR4_LA57_BIT 12 /* enable 5-level page tables */
+#define X86_CR4_LA57 _BITUL(X86_CR4_LA57_BIT)
+#define X86_CR4_VMXE_BIT 13 /* enable VMX virtualization */
+#define X86_CR4_VMXE _BITUL(X86_CR4_VMXE_BIT)
+#define X86_CR4_SMXE_BIT 14 /* enable safer mode (TXT) */
+#define X86_CR4_SMXE _BITUL(X86_CR4_SMXE_BIT)
+#define X86_CR4_FSGSBASE_BIT 16 /* enable RDWRFSGS support */
+#define X86_CR4_FSGSBASE _BITUL(X86_CR4_FSGSBASE_BIT)
+#define X86_CR4_PCIDE_BIT 17 /* enable PCID support */
+#define X86_CR4_PCIDE _BITUL(X86_CR4_PCIDE_BIT)
+#define X86_CR4_OSXSAVE_BIT 18 /* enable xsave and xrestore */
+#define X86_CR4_OSXSAVE _BITUL(X86_CR4_OSXSAVE_BIT)
+#define X86_CR4_SMEP_BIT 20 /* enable SMEP support */
+#define X86_CR4_SMEP _BITUL(X86_CR4_SMEP_BIT)
+#define X86_CR4_SMAP_BIT 21 /* enable SMAP support */
+#define X86_CR4_SMAP _BITUL(X86_CR4_SMAP_BIT)
+#define X86_CR4_PKE_BIT 22 /* enable Protection Keys support */
+#define X86_CR4_PKE _BITUL(X86_CR4_PKE_BIT)
+#define X86_CR4_CET_BIT 23 /* enable Control-flow Enforcement Technology */
+#define X86_CR4_CET _BITUL(X86_CR4_CET_BIT)
+#define X86_CR4_LAM_SUP_BIT 28 /* LAM for supervisor pointers */
+#define X86_CR4_LAM_SUP _BITUL(X86_CR4_LAM_SUP_BIT)
+
+/*
+ * x86-64 Task Priority Register, CR8
+ */
+#define X86_CR8_TPR _AC(0x0000000f,UL) /* task priority register */
+
+/*
+ * AMD and Transmeta use MSRs for configuration; see <asm/msr-index.h>
+ */
+
+/*
+ * NSC/Cyrix CPU configuration register indexes
+ */
+#define CX86_PCR0 0x20
+#define CX86_GCR 0xb8
+#define CX86_CCR0 0xc0
+#define CX86_CCR1 0xc1
+#define CX86_CCR2 0xc2
+#define CX86_CCR3 0xc3
+#define CX86_CCR4 0xe8
+#define CX86_CCR5 0xe9
+#define CX86_CCR6 0xea
+#define CX86_CCR7 0xeb
+#define CX86_PCR1 0xf0
+#define CX86_DIR0 0xfe
+#define CX86_DIR1 0xff
+#define CX86_ARR_BASE 0xc4
+#define CX86_RCR_BASE 0xdc
+
+#define CR0_STATE (X86_CR0_PE | X86_CR0_MP | X86_CR0_ET | \
+ X86_CR0_NE | X86_CR0_WP | X86_CR0_AM | \
+ X86_CR0_PG)
+
+#endif /* _UAPI_ASM_X86_PROCESSOR_FLAGS_H */
diff --git a/arch/x86/include/asm/ptrace-abi.h b/arch/x86/include/uapi/asm/ptrace-abi.h
index 7b0a55a88851..16074b9c93bb 100644
--- a/arch/x86/include/asm/ptrace-abi.h
+++ b/arch/x86/include/uapi/asm/ptrace-abi.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_X86_PTRACE_ABI_H
#define _ASM_X86_PTRACE_ABI_H
@@ -25,13 +26,17 @@
#else /* __i386__ */
#if defined(__ASSEMBLY__) || defined(__FRAME_OFFSETS)
+/*
+ * C ABI says these regs are callee-preserved. They aren't saved on kernel entry
+ * unless syscall needs a complete, fully filled "struct pt_regs".
+ */
#define R15 0
#define R14 8
#define R13 16
#define R12 24
#define RBP 32
#define RBX 40
-/* arguments: interrupts/non tracing syscalls only save up to here*/
+/* These regs are callee-clobbered. Always saved on kernel entry. */
#define R11 48
#define R10 56
#define R9 64
@@ -41,15 +46,17 @@
#define RDX 96
#define RSI 104
#define RDI 112
-#define ORIG_RAX 120 /* = ERROR */
-/* end of arguments */
-/* cpu exception frame or undefined in case of fast syscall. */
+/*
+ * On syscall entry, this is syscall#. On CPU exception, this is error code.
+ * On hw interrupt, it's IRQ number:
+ */
+#define ORIG_RAX 120
+/* Return frame for iretq */
#define RIP 128
#define CS 136
#define EFLAGS 144
#define RSP 152
#define SS 160
-#define ARGOFFSET R11
#endif /* __ASSEMBLY__ */
/* top of stack page */
diff --git a/arch/x86/include/uapi/asm/ptrace.h b/arch/x86/include/uapi/asm/ptrace.h
new file mode 100644
index 000000000000..85165c0edafc
--- /dev/null
+++ b/arch/x86/include/uapi/asm/ptrace.h
@@ -0,0 +1,86 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_PTRACE_H
+#define _UAPI_ASM_X86_PTRACE_H
+
+#include <linux/compiler.h> /* For __user */
+#include <asm/ptrace-abi.h>
+#include <asm/processor-flags.h>
+
+
+#ifndef __ASSEMBLY__
+
+#ifdef __i386__
+/* this struct defines the way the registers are stored on the
+ stack during a system call. */
+
+#ifndef __KERNEL__
+
+struct pt_regs {
+ long ebx;
+ long ecx;
+ long edx;
+ long esi;
+ long edi;
+ long ebp;
+ long eax;
+ int xds;
+ int xes;
+ int xfs;
+ int xgs;
+ long orig_eax;
+ long eip;
+ int xcs;
+ long eflags;
+ long esp;
+ int xss;
+};
+
+#endif /* __KERNEL__ */
+
+#else /* __i386__ */
+
+#ifndef __KERNEL__
+
+struct pt_regs {
+/*
+ * C ABI says these regs are callee-preserved. They aren't saved on kernel entry
+ * unless syscall needs a complete, fully filled "struct pt_regs".
+ */
+ unsigned long r15;
+ unsigned long r14;
+ unsigned long r13;
+ unsigned long r12;
+ unsigned long rbp;
+ unsigned long rbx;
+/* These regs are callee-clobbered. Always saved on kernel entry. */
+ unsigned long r11;
+ unsigned long r10;
+ unsigned long r9;
+ unsigned long r8;
+ unsigned long rax;
+ unsigned long rcx;
+ unsigned long rdx;
+ unsigned long rsi;
+ unsigned long rdi;
+/*
+ * On syscall entry, this is syscall#. On CPU exception, this is error code.
+ * On hw interrupt, it's IRQ number:
+ */
+ unsigned long orig_rax;
+/* Return frame for iretq */
+ unsigned long rip;
+ unsigned long cs;
+ unsigned long eflags;
+ unsigned long rsp;
+ unsigned long ss;
+/* top of stack page */
+};
+
+#endif /* __KERNEL__ */
+#endif /* !__i386__ */
+
+
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _UAPI_ASM_X86_PTRACE_H */
diff --git a/arch/x86/include/uapi/asm/sembuf.h b/arch/x86/include/uapi/asm/sembuf.h
new file mode 100644
index 000000000000..71205b02a191
--- /dev/null
+++ b/arch/x86/include/uapi/asm/sembuf.h
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_SEMBUF_H
+#define _ASM_X86_SEMBUF_H
+
+#include <asm/ipcbuf.h>
+
+/*
+ * The semid64_ds structure for x86 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 2 miscellaneous 32-bit values
+ *
+ * x86_64 and x32 incorrectly added padding here, so the structures
+ * are still incompatible with the padding on x86.
+ */
+struct semid64_ds {
+ struct ipc64_perm sem_perm; /* permissions .. see ipc.h */
+#ifdef __i386__
+ unsigned long sem_otime; /* last semop time */
+ unsigned long sem_otime_high;
+ unsigned long sem_ctime; /* last change time */
+ unsigned long sem_ctime_high;
+#else
+ __kernel_long_t sem_otime; /* last semop time */
+ __kernel_ulong_t __unused1;
+ __kernel_long_t sem_ctime; /* last change time */
+ __kernel_ulong_t __unused2;
+#endif
+ __kernel_ulong_t sem_nsems; /* no. of semaphores in array */
+ __kernel_ulong_t __unused3;
+ __kernel_ulong_t __unused4;
+};
+
+#endif /* _ASM_X86_SEMBUF_H */
diff --git a/arch/x86/include/uapi/asm/setup.h b/arch/x86/include/uapi/asm/setup.h
new file mode 100644
index 000000000000..79a9626b5500
--- /dev/null
+++ b/arch/x86/include/uapi/asm/setup.h
@@ -0,0 +1 @@
+/* */
diff --git a/arch/x86/include/uapi/asm/sgx.h b/arch/x86/include/uapi/asm/sgx.h
new file mode 100644
index 000000000000..2dd35bbdc822
--- /dev/null
+++ b/arch/x86/include/uapi/asm/sgx.h
@@ -0,0 +1,232 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Copyright(c) 2016-20 Intel Corporation.
+ */
+#ifndef _UAPI_ASM_X86_SGX_H
+#define _UAPI_ASM_X86_SGX_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/**
+ * enum sgx_page_flags - page control flags
+ * %SGX_PAGE_MEASURE: Measure the page contents with a sequence of
+ * ENCLS[EEXTEND] operations.
+ */
+enum sgx_page_flags {
+ SGX_PAGE_MEASURE = 0x01,
+};
+
+#define SGX_MAGIC 0xA4
+
+#define SGX_IOC_ENCLAVE_CREATE \
+ _IOW(SGX_MAGIC, 0x00, struct sgx_enclave_create)
+#define SGX_IOC_ENCLAVE_ADD_PAGES \
+ _IOWR(SGX_MAGIC, 0x01, struct sgx_enclave_add_pages)
+#define SGX_IOC_ENCLAVE_INIT \
+ _IOW(SGX_MAGIC, 0x02, struct sgx_enclave_init)
+#define SGX_IOC_ENCLAVE_PROVISION \
+ _IOW(SGX_MAGIC, 0x03, struct sgx_enclave_provision)
+#define SGX_IOC_VEPC_REMOVE_ALL \
+ _IO(SGX_MAGIC, 0x04)
+#define SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS \
+ _IOWR(SGX_MAGIC, 0x05, struct sgx_enclave_restrict_permissions)
+#define SGX_IOC_ENCLAVE_MODIFY_TYPES \
+ _IOWR(SGX_MAGIC, 0x06, struct sgx_enclave_modify_types)
+#define SGX_IOC_ENCLAVE_REMOVE_PAGES \
+ _IOWR(SGX_MAGIC, 0x07, struct sgx_enclave_remove_pages)
+
+/**
+ * struct sgx_enclave_create - parameter structure for the
+ * %SGX_IOC_ENCLAVE_CREATE ioctl
+ * @src: address for the SECS page data
+ */
+struct sgx_enclave_create {
+ __u64 src;
+};
+
+/**
+ * struct sgx_enclave_add_pages - parameter structure for the
+ * %SGX_IOC_ENCLAVE_ADD_PAGE ioctl
+ * @src: start address for the page data
+ * @offset: starting page offset
+ * @length: length of the data (multiple of the page size)
+ * @secinfo: address for the SECINFO data
+ * @flags: page control flags
+ * @count: number of bytes added (multiple of the page size)
+ */
+struct sgx_enclave_add_pages {
+ __u64 src;
+ __u64 offset;
+ __u64 length;
+ __u64 secinfo;
+ __u64 flags;
+ __u64 count;
+};
+
+/**
+ * struct sgx_enclave_init - parameter structure for the
+ * %SGX_IOC_ENCLAVE_INIT ioctl
+ * @sigstruct: address for the SIGSTRUCT data
+ */
+struct sgx_enclave_init {
+ __u64 sigstruct;
+};
+
+/**
+ * struct sgx_enclave_provision - parameter structure for the
+ * %SGX_IOC_ENCLAVE_PROVISION ioctl
+ * @fd: file handle of /dev/sgx_provision
+ */
+struct sgx_enclave_provision {
+ __u64 fd;
+};
+
+/**
+ * struct sgx_enclave_restrict_permissions - parameters for ioctl
+ * %SGX_IOC_ENCLAVE_RESTRICT_PERMISSIONS
+ * @offset: starting page offset (page aligned relative to enclave base
+ * address defined in SECS)
+ * @length: length of memory (multiple of the page size)
+ * @permissions:new permission bits for pages in range described by @offset
+ * and @length
+ * @result: (output) SGX result code of ENCLS[EMODPR] function
+ * @count: (output) bytes successfully changed (multiple of page size)
+ */
+struct sgx_enclave_restrict_permissions {
+ __u64 offset;
+ __u64 length;
+ __u64 permissions;
+ __u64 result;
+ __u64 count;
+};
+
+/**
+ * struct sgx_enclave_modify_types - parameters for ioctl
+ * %SGX_IOC_ENCLAVE_MODIFY_TYPES
+ * @offset: starting page offset (page aligned relative to enclave base
+ * address defined in SECS)
+ * @length: length of memory (multiple of the page size)
+ * @page_type: new type for pages in range described by @offset and @length
+ * @result: (output) SGX result code of ENCLS[EMODT] function
+ * @count: (output) bytes successfully changed (multiple of page size)
+ */
+struct sgx_enclave_modify_types {
+ __u64 offset;
+ __u64 length;
+ __u64 page_type;
+ __u64 result;
+ __u64 count;
+};
+
+/**
+ * struct sgx_enclave_remove_pages - %SGX_IOC_ENCLAVE_REMOVE_PAGES parameters
+ * @offset: starting page offset (page aligned relative to enclave base
+ * address defined in SECS)
+ * @length: length of memory (multiple of the page size)
+ * @count: (output) bytes successfully changed (multiple of page size)
+ *
+ * Regular (PT_REG) or TCS (PT_TCS) can be removed from an initialized
+ * enclave if the system supports SGX2. First, the %SGX_IOC_ENCLAVE_MODIFY_TYPES
+ * ioctl() should be used to change the page type to PT_TRIM. After that
+ * succeeds ENCLU[EACCEPT] should be run from within the enclave and then
+ * %SGX_IOC_ENCLAVE_REMOVE_PAGES can be used to complete the page removal.
+ */
+struct sgx_enclave_remove_pages {
+ __u64 offset;
+ __u64 length;
+ __u64 count;
+};
+
+struct sgx_enclave_run;
+
+/**
+ * typedef sgx_enclave_user_handler_t - Exit handler function accepted by
+ * __vdso_sgx_enter_enclave()
+ * @run: The run instance given by the caller
+ *
+ * The register parameters contain the snapshot of their values at enclave
+ * exit. An invalid ENCLU function number will cause -EINVAL to be returned
+ * to the caller.
+ *
+ * Return:
+ * - <= 0: The given value is returned back to the caller.
+ * - > 0: ENCLU function to invoke, either EENTER or ERESUME.
+ */
+typedef int (*sgx_enclave_user_handler_t)(long rdi, long rsi, long rdx,
+ long rsp, long r8, long r9,
+ struct sgx_enclave_run *run);
+
+/**
+ * struct sgx_enclave_run - the execution context of __vdso_sgx_enter_enclave()
+ * @tcs: TCS used to enter the enclave
+ * @function: The last seen ENCLU function (EENTER, ERESUME or EEXIT)
+ * @exception_vector: The interrupt vector of the exception
+ * @exception_error_code: The exception error code pulled out of the stack
+ * @exception_addr: The address that triggered the exception
+ * @user_handler: User provided callback run on exception
+ * @user_data: Data passed to the user handler
+ * @reserved Reserved for future extensions
+ *
+ * If @user_handler is provided, the handler will be invoked on all return paths
+ * of the normal flow. The user handler may transfer control, e.g. via a
+ * longjmp() call or a C++ exception, without returning to
+ * __vdso_sgx_enter_enclave().
+ */
+struct sgx_enclave_run {
+ __u64 tcs;
+ __u32 function;
+ __u16 exception_vector;
+ __u16 exception_error_code;
+ __u64 exception_addr;
+ __u64 user_handler;
+ __u64 user_data;
+ __u8 reserved[216];
+};
+
+/**
+ * typedef vdso_sgx_enter_enclave_t - Prototype for __vdso_sgx_enter_enclave(),
+ * a vDSO function to enter an SGX enclave.
+ * @rdi: Pass-through value for RDI
+ * @rsi: Pass-through value for RSI
+ * @rdx: Pass-through value for RDX
+ * @function: ENCLU function, must be EENTER or ERESUME
+ * @r8: Pass-through value for R8
+ * @r9: Pass-through value for R9
+ * @run: struct sgx_enclave_run, must be non-NULL
+ *
+ * NOTE: __vdso_sgx_enter_enclave() does not ensure full compliance with the
+ * x86-64 ABI, e.g. doesn't handle XSAVE state. Except for non-volatile
+ * general purpose registers, EFLAGS.DF, and RSP alignment, preserving/setting
+ * state in accordance with the x86-64 ABI is the responsibility of the enclave
+ * and its runtime, i.e. __vdso_sgx_enter_enclave() cannot be called from C
+ * code without careful consideration by both the enclave and its runtime.
+ *
+ * All general purpose registers except RAX, RBX and RCX are passed as-is to the
+ * enclave. RAX, RBX and RCX are consumed by EENTER and ERESUME and are loaded
+ * with @function, asynchronous exit pointer, and @run.tcs respectively.
+ *
+ * RBP and the stack are used to anchor __vdso_sgx_enter_enclave() to the
+ * pre-enclave state, e.g. to retrieve @run.exception and @run.user_handler
+ * after an enclave exit. All other registers are available for use by the
+ * enclave and its runtime, e.g. an enclave can push additional data onto the
+ * stack (and modify RSP) to pass information to the optional user handler (see
+ * below).
+ *
+ * Most exceptions reported on ENCLU, including those that occur within the
+ * enclave, are fixed up and reported synchronously instead of being delivered
+ * via a standard signal. Debug Exceptions (#DB) and Breakpoints (#BP) are
+ * never fixed up and are always delivered via standard signals. On synchronously
+ * reported exceptions, -EFAULT is returned and details about the exception are
+ * recorded in @run.exception, the optional sgx_enclave_exception struct.
+ *
+ * Return:
+ * - 0: ENCLU function was successfully executed.
+ * - -EINVAL: Invalid ENCL number (neither EENTER nor ERESUME).
+ */
+typedef int (*vdso_sgx_enter_enclave_t)(unsigned long rdi, unsigned long rsi,
+ unsigned long rdx, unsigned int function,
+ unsigned long r8, unsigned long r9,
+ struct sgx_enclave_run *run);
+
+#endif /* _UAPI_ASM_X86_SGX_H */
diff --git a/arch/x86/include/uapi/asm/shmbuf.h b/arch/x86/include/uapi/asm/shmbuf.h
new file mode 100644
index 000000000000..13775bfdfee2
--- /dev/null
+++ b/arch/x86/include/uapi/asm/shmbuf.h
@@ -0,0 +1,47 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef __ASM_X86_SHMBUF_H
+#define __ASM_X86_SHMBUF_H
+
+#if !defined(__x86_64__) || !defined(__ILP32__)
+#include <asm-generic/shmbuf.h>
+#else
+
+#include <asm/ipcbuf.h>
+#include <asm/posix_types.h>
+
+/*
+ * The shmid64_ds structure for x86 architecture with x32 ABI.
+ *
+ * On x86-32 and x86-64 we can just use the generic definition, but
+ * x32 uses the same binary layout as x86_64, which is different
+ * from other 32-bit architectures.
+ */
+
+struct shmid64_ds {
+ struct ipc64_perm shm_perm; /* operation perms */
+ __kernel_size_t shm_segsz; /* size of segment (bytes) */
+ __kernel_long_t shm_atime; /* last attach time */
+ __kernel_long_t shm_dtime; /* last detach time */
+ __kernel_long_t shm_ctime; /* last change time */
+ __kernel_pid_t shm_cpid; /* pid of creator */
+ __kernel_pid_t shm_lpid; /* pid of last operator */
+ __kernel_ulong_t shm_nattch; /* no. of current attaches */
+ __kernel_ulong_t __unused4;
+ __kernel_ulong_t __unused5;
+};
+
+struct shminfo64 {
+ __kernel_ulong_t shmmax;
+ __kernel_ulong_t shmmin;
+ __kernel_ulong_t shmmni;
+ __kernel_ulong_t shmseg;
+ __kernel_ulong_t shmall;
+ __kernel_ulong_t __unused1;
+ __kernel_ulong_t __unused2;
+ __kernel_ulong_t __unused3;
+ __kernel_ulong_t __unused4;
+};
+
+#endif
+
+#endif /* __ASM_X86_SHMBUF_H */
diff --git a/arch/x86/include/uapi/asm/sigcontext.h b/arch/x86/include/uapi/asm/sigcontext.h
new file mode 100644
index 000000000000..d0d9b331d3a1
--- /dev/null
+++ b/arch/x86/include/uapi/asm/sigcontext.h
@@ -0,0 +1,389 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_SIGCONTEXT_H
+#define _UAPI_ASM_X86_SIGCONTEXT_H
+
+/*
+ * Linux signal context definitions. The sigcontext includes a complex
+ * hierarchy of CPU and FPU state, available to user-space (on the stack) when
+ * a signal handler is executed.
+ *
+ * As over the years this ABI grew from its very simple roots towards
+ * supporting more and more CPU state organically, some of the details (which
+ * were rather clever hacks back in the days) became a bit quirky by today.
+ *
+ * The current ABI includes flexible provisions for future extensions, so we
+ * won't have to grow new quirks for quite some time. Promise!
+ */
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+
+#define FP_XSTATE_MAGIC1 0x46505853U
+#define FP_XSTATE_MAGIC2 0x46505845U
+#define FP_XSTATE_MAGIC2_SIZE sizeof(FP_XSTATE_MAGIC2)
+
+/*
+ * Bytes 464..511 in the current 512-byte layout of the FXSAVE/FXRSTOR frame
+ * are reserved for SW usage. On CPUs supporting XSAVE/XRSTOR, these bytes are
+ * used to extend the fpstate pointer in the sigcontext, which now includes the
+ * extended state information along with fpstate information.
+ *
+ * If sw_reserved.magic1 == FP_XSTATE_MAGIC1 then there's a
+ * sw_reserved.extended_size bytes large extended context area present. (The
+ * last 32-bit word of this extended area (at the
+ * fpstate+extended_size-FP_XSTATE_MAGIC2_SIZE address) is set to
+ * FP_XSTATE_MAGIC2 so that you can sanity check your size calculations.)
+ *
+ * This extended area typically grows with newer CPUs that have larger and
+ * larger XSAVE areas.
+ */
+struct _fpx_sw_bytes {
+ /*
+ * If set to FP_XSTATE_MAGIC1 then this is an xstate context.
+ * 0 if a legacy frame.
+ */
+ __u32 magic1;
+
+ /*
+ * Total size of the fpstate area:
+ *
+ * - if magic1 == 0 then it's sizeof(struct _fpstate)
+ * - if magic1 == FP_XSTATE_MAGIC1 then it's sizeof(struct _xstate)
+ * plus extensions (if any)
+ */
+ __u32 extended_size;
+
+ /*
+ * Feature bit mask (including FP/SSE/extended state) that is present
+ * in the memory layout:
+ */
+ __u64 xfeatures;
+
+ /*
+ * Actual XSAVE state size, based on the xfeatures saved in the layout.
+ * 'extended_size' is greater than 'xstate_size':
+ */
+ __u32 xstate_size;
+
+ /* For future use: */
+ __u32 padding[7];
+};
+
+/*
+ * As documented in the iBCS2 standard:
+ *
+ * The first part of "struct _fpstate" is just the normal i387 hardware setup,
+ * the extra "status" word is used to save the coprocessor status word before
+ * entering the handler.
+ *
+ * The FPU state data structure has had to grow to accommodate the extended FPU
+ * state required by the Streaming SIMD Extensions. There is no documented
+ * standard to accomplish this at the moment.
+ */
+
+/* 10-byte legacy floating point register: */
+struct _fpreg {
+ __u16 significand[4];
+ __u16 exponent;
+};
+
+/* 16-byte floating point register: */
+struct _fpxreg {
+ __u16 significand[4];
+ __u16 exponent;
+ __u16 padding[3];
+};
+
+/* 16-byte XMM register: */
+struct _xmmreg {
+ __u32 element[4];
+};
+
+#define X86_FXSR_MAGIC 0x0000
+
+/*
+ * The 32-bit FPU frame:
+ */
+struct _fpstate_32 {
+ /* Legacy FPU environment: */
+ __u32 cw;
+ __u32 sw;
+ __u32 tag;
+ __u32 ipoff;
+ __u32 cssel;
+ __u32 dataoff;
+ __u32 datasel;
+ struct _fpreg _st[8];
+ __u16 status;
+ __u16 magic; /* 0xffff: regular FPU data only */
+ /* 0x0000: FXSR FPU data */
+
+ /* FXSR FPU environment */
+ __u32 _fxsr_env[6]; /* FXSR FPU env is ignored */
+ __u32 mxcsr;
+ __u32 reserved;
+ struct _fpxreg _fxsr_st[8]; /* FXSR FPU reg data is ignored */
+ struct _xmmreg _xmm[8]; /* First 8 XMM registers */
+ union {
+ __u32 padding1[44]; /* Second 8 XMM registers plus padding */
+ __u32 padding[44]; /* Alias name for old user-space */
+ };
+
+ union {
+ __u32 padding2[12];
+ struct _fpx_sw_bytes sw_reserved; /* Potential extended state is encoded here */
+ };
+};
+
+/*
+ * The 64-bit FPU frame. (FXSAVE format and later)
+ *
+ * Note1: If sw_reserved.magic1 == FP_XSTATE_MAGIC1 then the structure is
+ * larger: 'struct _xstate'. Note that 'struct _xstate' embeds
+ * 'struct _fpstate' so that you can always assume the _fpstate portion
+ * exists so that you can check the magic value.
+ *
+ * Note2: Reserved fields may someday contain valuable data. Always
+ * save/restore them when you change signal frames.
+ */
+struct _fpstate_64 {
+ __u16 cwd;
+ __u16 swd;
+ /* Note this is not the same as the 32-bit/x87/FSAVE twd: */
+ __u16 twd;
+ __u16 fop;
+ __u64 rip;
+ __u64 rdp;
+ __u32 mxcsr;
+ __u32 mxcsr_mask;
+ __u32 st_space[32]; /* 8x FP registers, 16 bytes each */
+ __u32 xmm_space[64]; /* 16x XMM registers, 16 bytes each */
+ __u32 reserved2[12];
+ union {
+ __u32 reserved3[12];
+ struct _fpx_sw_bytes sw_reserved; /* Potential extended state is encoded here */
+ };
+};
+
+#ifdef __i386__
+# define _fpstate _fpstate_32
+#else
+# define _fpstate _fpstate_64
+#endif
+
+struct _header {
+ __u64 xfeatures;
+ __u64 reserved1[2];
+ __u64 reserved2[5];
+};
+
+struct _ymmh_state {
+ /* 16x YMM registers, 16 bytes each: */
+ __u32 ymmh_space[64];
+};
+
+/*
+ * Extended state pointed to by sigcontext::fpstate.
+ *
+ * In addition to the fpstate, information encoded in _xstate::xstate_hdr
+ * indicates the presence of other extended state information supported
+ * by the CPU and kernel:
+ */
+struct _xstate {
+ struct _fpstate fpstate;
+ struct _header xstate_hdr;
+ struct _ymmh_state ymmh;
+ /* New processor state extensions go here: */
+};
+
+/*
+ * The 32-bit signal frame:
+ */
+struct sigcontext_32 {
+ __u16 gs, __gsh;
+ __u16 fs, __fsh;
+ __u16 es, __esh;
+ __u16 ds, __dsh;
+ __u32 di;
+ __u32 si;
+ __u32 bp;
+ __u32 sp;
+ __u32 bx;
+ __u32 dx;
+ __u32 cx;
+ __u32 ax;
+ __u32 trapno;
+ __u32 err;
+ __u32 ip;
+ __u16 cs, __csh;
+ __u32 flags;
+ __u32 sp_at_signal;
+ __u16 ss, __ssh;
+
+ /*
+ * fpstate is really (struct _fpstate *) or (struct _xstate *)
+ * depending on the FP_XSTATE_MAGIC1 encoded in the SW reserved
+ * bytes of (struct _fpstate) and FP_XSTATE_MAGIC2 present at the end
+ * of extended memory layout. See comments at the definition of
+ * (struct _fpx_sw_bytes)
+ */
+ __u32 fpstate; /* Zero when no FPU/extended context */
+ __u32 oldmask;
+ __u32 cr2;
+};
+
+/*
+ * The 64-bit signal frame:
+ */
+struct sigcontext_64 {
+ __u64 r8;
+ __u64 r9;
+ __u64 r10;
+ __u64 r11;
+ __u64 r12;
+ __u64 r13;
+ __u64 r14;
+ __u64 r15;
+ __u64 di;
+ __u64 si;
+ __u64 bp;
+ __u64 bx;
+ __u64 dx;
+ __u64 ax;
+ __u64 cx;
+ __u64 sp;
+ __u64 ip;
+ __u64 flags;
+ __u16 cs;
+ __u16 gs;
+ __u16 fs;
+ __u16 ss;
+ __u64 err;
+ __u64 trapno;
+ __u64 oldmask;
+ __u64 cr2;
+
+ /*
+ * fpstate is really (struct _fpstate *) or (struct _xstate *)
+ * depending on the FP_XSTATE_MAGIC1 encoded in the SW reserved
+ * bytes of (struct _fpstate) and FP_XSTATE_MAGIC2 present at the end
+ * of extended memory layout. See comments at the definition of
+ * (struct _fpx_sw_bytes)
+ */
+ __u64 fpstate; /* Zero when no FPU/extended context */
+ __u64 reserved1[8];
+};
+
+/*
+ * Create the real 'struct sigcontext' type:
+ */
+#ifdef __KERNEL__
+# ifdef __i386__
+# define sigcontext sigcontext_32
+# else
+# define sigcontext sigcontext_64
+# endif
+#endif
+
+/*
+ * The old user-space sigcontext definition, just in case user-space still
+ * relies on it. The kernel definition (in asm/sigcontext.h) has unified
+ * field names but otherwise the same layout.
+ */
+#ifndef __KERNEL__
+
+#define _fpstate_ia32 _fpstate_32
+#define sigcontext_ia32 sigcontext_32
+
+
+# ifdef __i386__
+struct sigcontext {
+ __u16 gs, __gsh;
+ __u16 fs, __fsh;
+ __u16 es, __esh;
+ __u16 ds, __dsh;
+ __u32 edi;
+ __u32 esi;
+ __u32 ebp;
+ __u32 esp;
+ __u32 ebx;
+ __u32 edx;
+ __u32 ecx;
+ __u32 eax;
+ __u32 trapno;
+ __u32 err;
+ __u32 eip;
+ __u16 cs, __csh;
+ __u32 eflags;
+ __u32 esp_at_signal;
+ __u16 ss, __ssh;
+ struct _fpstate __user *fpstate;
+ __u32 oldmask;
+ __u32 cr2;
+};
+# else /* __x86_64__: */
+struct sigcontext {
+ __u64 r8;
+ __u64 r9;
+ __u64 r10;
+ __u64 r11;
+ __u64 r12;
+ __u64 r13;
+ __u64 r14;
+ __u64 r15;
+ __u64 rdi;
+ __u64 rsi;
+ __u64 rbp;
+ __u64 rbx;
+ __u64 rdx;
+ __u64 rax;
+ __u64 rcx;
+ __u64 rsp;
+ __u64 rip;
+ __u64 eflags; /* RFLAGS */
+ __u16 cs;
+
+ /*
+ * Prior to 2.5.64 ("[PATCH] x86-64 updates for 2.5.64-bk3"),
+ * Linux saved and restored fs and gs in these slots. This
+ * was counterproductive, as fsbase and gsbase were never
+ * saved, so arch_prctl was presumably unreliable.
+ *
+ * These slots should never be reused without extreme caution:
+ *
+ * - Some DOSEMU versions stash fs and gs in these slots manually,
+ * thus overwriting anything the kernel expects to be preserved
+ * in these slots.
+ *
+ * - If these slots are ever needed for any other purpose,
+ * there is some risk that very old 64-bit binaries could get
+ * confused. I doubt that many such binaries still work,
+ * though, since the same patch in 2.5.64 also removed the
+ * 64-bit set_thread_area syscall, so it appears that there
+ * is no TLS API beyond modify_ldt that works in both pre-
+ * and post-2.5.64 kernels.
+ *
+ * If the kernel ever adds explicit fs, gs, fsbase, and gsbase
+ * save/restore, it will most likely need to be opt-in and use
+ * different context slots.
+ */
+ __u16 gs;
+ __u16 fs;
+ union {
+ __u16 ss; /* If UC_SIGCONTEXT_SS */
+ __u16 __pad0; /* Alias name for old (!UC_SIGCONTEXT_SS) user-space */
+ };
+ __u64 err;
+ __u64 trapno;
+ __u64 oldmask;
+ __u64 cr2;
+ struct _fpstate __user *fpstate; /* Zero when no FPU context */
+# ifdef __ILP32__
+ __u32 __fpstate_pad;
+# endif
+ __u64 reserved1[8];
+};
+# endif /* __x86_64__ */
+#endif /* !__KERNEL__ */
+
+#endif /* _UAPI_ASM_X86_SIGCONTEXT_H */
diff --git a/arch/x86/include/uapi/asm/sigcontext32.h b/arch/x86/include/uapi/asm/sigcontext32.h
new file mode 100644
index 000000000000..7114801d0499
--- /dev/null
+++ b/arch/x86/include/uapi/asm/sigcontext32.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_SIGCONTEXT32_H
+#define _ASM_X86_SIGCONTEXT32_H
+
+/* This is a legacy file - all the type definitions are in sigcontext.h: */
+
+#include <asm/sigcontext.h>
+
+#endif /* _ASM_X86_SIGCONTEXT32_H */
diff --git a/arch/x86/include/uapi/asm/siginfo.h b/arch/x86/include/uapi/asm/siginfo.h
new file mode 100644
index 000000000000..6642d8be40c4
--- /dev/null
+++ b/arch/x86/include/uapi/asm/siginfo.h
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_SIGINFO_H
+#define _ASM_X86_SIGINFO_H
+
+#ifdef __x86_64__
+# ifdef __ILP32__ /* x32 */
+typedef long long __kernel_si_clock_t __attribute__((aligned(4)));
+# define __ARCH_SI_CLOCK_T __kernel_si_clock_t
+# define __ARCH_SI_ATTRIBUTES __attribute__((aligned(8)))
+# endif
+#endif
+
+#include <asm-generic/siginfo.h>
+
+#endif /* _ASM_X86_SIGINFO_H */
diff --git a/arch/x86/include/uapi/asm/signal.h b/arch/x86/include/uapi/asm/signal.h
new file mode 100644
index 000000000000..777c3a0f4e23
--- /dev/null
+++ b/arch/x86/include/uapi/asm/signal.h
@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_SIGNAL_H
+#define _UAPI_ASM_X86_SIGNAL_H
+
+#ifndef __ASSEMBLY__
+#include <linux/types.h>
+#include <linux/time.h>
+#include <linux/compiler.h>
+
+/* Avoid too many header ordering problems. */
+struct siginfo;
+
+#ifndef __KERNEL__
+/* Here we must cater to libcs that poke about in kernel headers. */
+
+#define NSIG 32
+typedef unsigned long sigset_t;
+
+#endif /* __KERNEL__ */
+#endif /* __ASSEMBLY__ */
+
+
+#define SIGHUP 1
+#define SIGINT 2
+#define SIGQUIT 3
+#define SIGILL 4
+#define SIGTRAP 5
+#define SIGABRT 6
+#define SIGIOT 6
+#define SIGBUS 7
+#define SIGFPE 8
+#define SIGKILL 9
+#define SIGUSR1 10
+#define SIGSEGV 11
+#define SIGUSR2 12
+#define SIGPIPE 13
+#define SIGALRM 14
+#define SIGTERM 15
+#define SIGSTKFLT 16
+#define SIGCHLD 17
+#define SIGCONT 18
+#define SIGSTOP 19
+#define SIGTSTP 20
+#define SIGTTIN 21
+#define SIGTTOU 22
+#define SIGURG 23
+#define SIGXCPU 24
+#define SIGXFSZ 25
+#define SIGVTALRM 26
+#define SIGPROF 27
+#define SIGWINCH 28
+#define SIGIO 29
+#define SIGPOLL SIGIO
+/*
+#define SIGLOST 29
+*/
+#define SIGPWR 30
+#define SIGSYS 31
+#define SIGUNUSED 31
+
+/* These should not be considered constants from userland. */
+#define SIGRTMIN 32
+#define SIGRTMAX _NSIG
+
+#define SA_RESTORER 0x04000000
+
+#define MINSIGSTKSZ 2048
+#define SIGSTKSZ 8192
+
+#include <asm-generic/signal-defs.h>
+
+#ifndef __ASSEMBLY__
+
+
+# ifndef __KERNEL__
+/* Here we must cater to libcs that poke about in kernel headers. */
+#ifdef __i386__
+
+struct sigaction {
+ union {
+ __sighandler_t _sa_handler;
+ void (*_sa_sigaction)(int, struct siginfo *, void *);
+ } _u;
+ sigset_t sa_mask;
+ unsigned long sa_flags;
+ void (*sa_restorer)(void);
+};
+
+#define sa_handler _u._sa_handler
+#define sa_sigaction _u._sa_sigaction
+
+#else /* __i386__ */
+
+struct sigaction {
+ __sighandler_t sa_handler;
+ unsigned long sa_flags;
+ __sigrestore_t sa_restorer;
+ sigset_t sa_mask; /* mask last for extensibility */
+};
+
+#endif /* !__i386__ */
+# endif /* ! __KERNEL__ */
+
+typedef struct sigaltstack {
+ void __user *ss_sp;
+ int ss_flags;
+ __kernel_size_t ss_size;
+} stack_t;
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _UAPI_ASM_X86_SIGNAL_H */
diff --git a/arch/x86/include/asm/stat.h b/arch/x86/include/uapi/asm/stat.h
index e0b1d9bbcbc6..9e3982d95d0f 100644
--- a/arch/x86/include/asm/stat.h
+++ b/arch/x86/include/uapi/asm/stat.h
@@ -1,6 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_X86_STAT_H
#define _ASM_X86_STAT_H
+#include <asm/posix_types.h>
+
#define STAT_HAVE_NSEC 1
#ifdef __i386__
@@ -25,6 +28,12 @@ struct stat {
unsigned long __unused5;
};
+/* We don't need to memset the whole thing just to initialize the padding */
+#define INIT_STRUCT_STAT_PADDING(st) do { \
+ st.__unused4 = 0; \
+ st.__unused5 = 0; \
+} while (0)
+
#define STAT64_HAS_BROKEN_ST_INO 1
/* This matches struct stat64 in glibc2.1, hence the absolutely
@@ -63,30 +72,45 @@ struct stat64 {
unsigned long long st_ino;
};
+/* We don't need to memset the whole thing just to initialize the padding */
+#define INIT_STRUCT_STAT64_PADDING(st) do { \
+ memset(&st.__pad0, 0, sizeof(st.__pad0)); \
+ memset(&st.__pad3, 0, sizeof(st.__pad3)); \
+} while (0)
+
#else /* __i386__ */
struct stat {
- unsigned long st_dev;
- unsigned long st_ino;
- unsigned long st_nlink;
+ __kernel_ulong_t st_dev;
+ __kernel_ulong_t st_ino;
+ __kernel_ulong_t st_nlink;
+
+ unsigned int st_mode;
+ unsigned int st_uid;
+ unsigned int st_gid;
+ unsigned int __pad0;
+ __kernel_ulong_t st_rdev;
+ __kernel_long_t st_size;
+ __kernel_long_t st_blksize;
+ __kernel_long_t st_blocks; /* Number 512-byte blocks allocated. */
+
+ __kernel_ulong_t st_atime;
+ __kernel_ulong_t st_atime_nsec;
+ __kernel_ulong_t st_mtime;
+ __kernel_ulong_t st_mtime_nsec;
+ __kernel_ulong_t st_ctime;
+ __kernel_ulong_t st_ctime_nsec;
+ __kernel_long_t __unused[3];
+};
- unsigned int st_mode;
- unsigned int st_uid;
- unsigned int st_gid;
- unsigned int __pad0;
- unsigned long st_rdev;
- long st_size;
- long st_blksize;
- long st_blocks; /* Number 512-byte blocks allocated. */
+/* We don't need to memset the whole thing just to initialize the padding */
+#define INIT_STRUCT_STAT_PADDING(st) do { \
+ st.__pad0 = 0; \
+ st.__unused[0] = 0; \
+ st.__unused[1] = 0; \
+ st.__unused[2] = 0; \
+} while (0)
- unsigned long st_atime;
- unsigned long st_atime_nsec;
- unsigned long st_mtime;
- unsigned long st_mtime_nsec;
- unsigned long st_ctime;
- unsigned long st_ctime_nsec;
- long __unused[3];
-};
#endif
/* for 32bit emulation and 32 bit kernels */
diff --git a/arch/x86/include/asm/statfs.h b/arch/x86/include/uapi/asm/statfs.h
index 2d0adbf99a8e..13c2464cd2c4 100644
--- a/arch/x86/include/asm/statfs.h
+++ b/arch/x86/include/uapi/asm/statfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_X86_STATFS_H
#define _ASM_X86_STATFS_H
diff --git a/arch/x86/include/uapi/asm/svm.h b/arch/x86/include/uapi/asm/svm.h
new file mode 100644
index 000000000000..80e1df482337
--- /dev/null
+++ b/arch/x86/include/uapi/asm/svm.h
@@ -0,0 +1,243 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI__SVM_H
+#define _UAPI__SVM_H
+
+#define SVM_EXIT_READ_CR0 0x000
+#define SVM_EXIT_READ_CR2 0x002
+#define SVM_EXIT_READ_CR3 0x003
+#define SVM_EXIT_READ_CR4 0x004
+#define SVM_EXIT_READ_CR8 0x008
+#define SVM_EXIT_WRITE_CR0 0x010
+#define SVM_EXIT_WRITE_CR2 0x012
+#define SVM_EXIT_WRITE_CR3 0x013
+#define SVM_EXIT_WRITE_CR4 0x014
+#define SVM_EXIT_WRITE_CR8 0x018
+#define SVM_EXIT_READ_DR0 0x020
+#define SVM_EXIT_READ_DR1 0x021
+#define SVM_EXIT_READ_DR2 0x022
+#define SVM_EXIT_READ_DR3 0x023
+#define SVM_EXIT_READ_DR4 0x024
+#define SVM_EXIT_READ_DR5 0x025
+#define SVM_EXIT_READ_DR6 0x026
+#define SVM_EXIT_READ_DR7 0x027
+#define SVM_EXIT_WRITE_DR0 0x030
+#define SVM_EXIT_WRITE_DR1 0x031
+#define SVM_EXIT_WRITE_DR2 0x032
+#define SVM_EXIT_WRITE_DR3 0x033
+#define SVM_EXIT_WRITE_DR4 0x034
+#define SVM_EXIT_WRITE_DR5 0x035
+#define SVM_EXIT_WRITE_DR6 0x036
+#define SVM_EXIT_WRITE_DR7 0x037
+#define SVM_EXIT_EXCP_BASE 0x040
+#define SVM_EXIT_LAST_EXCP 0x05f
+#define SVM_EXIT_INTR 0x060
+#define SVM_EXIT_NMI 0x061
+#define SVM_EXIT_SMI 0x062
+#define SVM_EXIT_INIT 0x063
+#define SVM_EXIT_VINTR 0x064
+#define SVM_EXIT_CR0_SEL_WRITE 0x065
+#define SVM_EXIT_IDTR_READ 0x066
+#define SVM_EXIT_GDTR_READ 0x067
+#define SVM_EXIT_LDTR_READ 0x068
+#define SVM_EXIT_TR_READ 0x069
+#define SVM_EXIT_IDTR_WRITE 0x06a
+#define SVM_EXIT_GDTR_WRITE 0x06b
+#define SVM_EXIT_LDTR_WRITE 0x06c
+#define SVM_EXIT_TR_WRITE 0x06d
+#define SVM_EXIT_RDTSC 0x06e
+#define SVM_EXIT_RDPMC 0x06f
+#define SVM_EXIT_PUSHF 0x070
+#define SVM_EXIT_POPF 0x071
+#define SVM_EXIT_CPUID 0x072
+#define SVM_EXIT_RSM 0x073
+#define SVM_EXIT_IRET 0x074
+#define SVM_EXIT_SWINT 0x075
+#define SVM_EXIT_INVD 0x076
+#define SVM_EXIT_PAUSE 0x077
+#define SVM_EXIT_HLT 0x078
+#define SVM_EXIT_INVLPG 0x079
+#define SVM_EXIT_INVLPGA 0x07a
+#define SVM_EXIT_IOIO 0x07b
+#define SVM_EXIT_MSR 0x07c
+#define SVM_EXIT_TASK_SWITCH 0x07d
+#define SVM_EXIT_FERR_FREEZE 0x07e
+#define SVM_EXIT_SHUTDOWN 0x07f
+#define SVM_EXIT_VMRUN 0x080
+#define SVM_EXIT_VMMCALL 0x081
+#define SVM_EXIT_VMLOAD 0x082
+#define SVM_EXIT_VMSAVE 0x083
+#define SVM_EXIT_STGI 0x084
+#define SVM_EXIT_CLGI 0x085
+#define SVM_EXIT_SKINIT 0x086
+#define SVM_EXIT_RDTSCP 0x087
+#define SVM_EXIT_ICEBP 0x088
+#define SVM_EXIT_WBINVD 0x089
+#define SVM_EXIT_MONITOR 0x08a
+#define SVM_EXIT_MWAIT 0x08b
+#define SVM_EXIT_MWAIT_COND 0x08c
+#define SVM_EXIT_XSETBV 0x08d
+#define SVM_EXIT_RDPRU 0x08e
+#define SVM_EXIT_EFER_WRITE_TRAP 0x08f
+#define SVM_EXIT_CR0_WRITE_TRAP 0x090
+#define SVM_EXIT_CR1_WRITE_TRAP 0x091
+#define SVM_EXIT_CR2_WRITE_TRAP 0x092
+#define SVM_EXIT_CR3_WRITE_TRAP 0x093
+#define SVM_EXIT_CR4_WRITE_TRAP 0x094
+#define SVM_EXIT_CR5_WRITE_TRAP 0x095
+#define SVM_EXIT_CR6_WRITE_TRAP 0x096
+#define SVM_EXIT_CR7_WRITE_TRAP 0x097
+#define SVM_EXIT_CR8_WRITE_TRAP 0x098
+#define SVM_EXIT_CR9_WRITE_TRAP 0x099
+#define SVM_EXIT_CR10_WRITE_TRAP 0x09a
+#define SVM_EXIT_CR11_WRITE_TRAP 0x09b
+#define SVM_EXIT_CR12_WRITE_TRAP 0x09c
+#define SVM_EXIT_CR13_WRITE_TRAP 0x09d
+#define SVM_EXIT_CR14_WRITE_TRAP 0x09e
+#define SVM_EXIT_CR15_WRITE_TRAP 0x09f
+#define SVM_EXIT_INVPCID 0x0a2
+#define SVM_EXIT_NPF 0x400
+#define SVM_EXIT_AVIC_INCOMPLETE_IPI 0x401
+#define SVM_EXIT_AVIC_UNACCELERATED_ACCESS 0x402
+#define SVM_EXIT_VMGEXIT 0x403
+
+/* SEV-ES software-defined VMGEXIT events */
+#define SVM_VMGEXIT_MMIO_READ 0x80000001
+#define SVM_VMGEXIT_MMIO_WRITE 0x80000002
+#define SVM_VMGEXIT_NMI_COMPLETE 0x80000003
+#define SVM_VMGEXIT_AP_HLT_LOOP 0x80000004
+#define SVM_VMGEXIT_AP_JUMP_TABLE 0x80000005
+#define SVM_VMGEXIT_SET_AP_JUMP_TABLE 0
+#define SVM_VMGEXIT_GET_AP_JUMP_TABLE 1
+#define SVM_VMGEXIT_PSC 0x80000010
+#define SVM_VMGEXIT_GUEST_REQUEST 0x80000011
+#define SVM_VMGEXIT_EXT_GUEST_REQUEST 0x80000012
+#define SVM_VMGEXIT_AP_CREATION 0x80000013
+#define SVM_VMGEXIT_AP_CREATE_ON_INIT 0
+#define SVM_VMGEXIT_AP_CREATE 1
+#define SVM_VMGEXIT_AP_DESTROY 2
+#define SVM_VMGEXIT_HV_FEATURES 0x8000fffd
+#define SVM_VMGEXIT_TERM_REQUEST 0x8000fffe
+#define SVM_VMGEXIT_TERM_REASON(reason_set, reason_code) \
+ /* SW_EXITINFO1[3:0] */ \
+ (((((u64)reason_set) & 0xf)) | \
+ /* SW_EXITINFO1[11:4] */ \
+ ((((u64)reason_code) & 0xff) << 4))
+#define SVM_VMGEXIT_UNSUPPORTED_EVENT 0x8000ffff
+
+/* Exit code reserved for hypervisor/software use */
+#define SVM_EXIT_SW 0xf0000000
+
+#define SVM_EXIT_ERR -1
+
+#define SVM_EXIT_REASONS \
+ { SVM_EXIT_READ_CR0, "read_cr0" }, \
+ { SVM_EXIT_READ_CR2, "read_cr2" }, \
+ { SVM_EXIT_READ_CR3, "read_cr3" }, \
+ { SVM_EXIT_READ_CR4, "read_cr4" }, \
+ { SVM_EXIT_READ_CR8, "read_cr8" }, \
+ { SVM_EXIT_WRITE_CR0, "write_cr0" }, \
+ { SVM_EXIT_WRITE_CR2, "write_cr2" }, \
+ { SVM_EXIT_WRITE_CR3, "write_cr3" }, \
+ { SVM_EXIT_WRITE_CR4, "write_cr4" }, \
+ { SVM_EXIT_WRITE_CR8, "write_cr8" }, \
+ { SVM_EXIT_READ_DR0, "read_dr0" }, \
+ { SVM_EXIT_READ_DR1, "read_dr1" }, \
+ { SVM_EXIT_READ_DR2, "read_dr2" }, \
+ { SVM_EXIT_READ_DR3, "read_dr3" }, \
+ { SVM_EXIT_READ_DR4, "read_dr4" }, \
+ { SVM_EXIT_READ_DR5, "read_dr5" }, \
+ { SVM_EXIT_READ_DR6, "read_dr6" }, \
+ { SVM_EXIT_READ_DR7, "read_dr7" }, \
+ { SVM_EXIT_WRITE_DR0, "write_dr0" }, \
+ { SVM_EXIT_WRITE_DR1, "write_dr1" }, \
+ { SVM_EXIT_WRITE_DR2, "write_dr2" }, \
+ { SVM_EXIT_WRITE_DR3, "write_dr3" }, \
+ { SVM_EXIT_WRITE_DR4, "write_dr4" }, \
+ { SVM_EXIT_WRITE_DR5, "write_dr5" }, \
+ { SVM_EXIT_WRITE_DR6, "write_dr6" }, \
+ { SVM_EXIT_WRITE_DR7, "write_dr7" }, \
+ { SVM_EXIT_EXCP_BASE + DE_VECTOR, "DE excp" }, \
+ { SVM_EXIT_EXCP_BASE + DB_VECTOR, "DB excp" }, \
+ { SVM_EXIT_EXCP_BASE + BP_VECTOR, "BP excp" }, \
+ { SVM_EXIT_EXCP_BASE + OF_VECTOR, "OF excp" }, \
+ { SVM_EXIT_EXCP_BASE + BR_VECTOR, "BR excp" }, \
+ { SVM_EXIT_EXCP_BASE + UD_VECTOR, "UD excp" }, \
+ { SVM_EXIT_EXCP_BASE + NM_VECTOR, "NM excp" }, \
+ { SVM_EXIT_EXCP_BASE + DF_VECTOR, "DF excp" }, \
+ { SVM_EXIT_EXCP_BASE + TS_VECTOR, "TS excp" }, \
+ { SVM_EXIT_EXCP_BASE + NP_VECTOR, "NP excp" }, \
+ { SVM_EXIT_EXCP_BASE + SS_VECTOR, "SS excp" }, \
+ { SVM_EXIT_EXCP_BASE + GP_VECTOR, "GP excp" }, \
+ { SVM_EXIT_EXCP_BASE + PF_VECTOR, "PF excp" }, \
+ { SVM_EXIT_EXCP_BASE + MF_VECTOR, "MF excp" }, \
+ { SVM_EXIT_EXCP_BASE + AC_VECTOR, "AC excp" }, \
+ { SVM_EXIT_EXCP_BASE + MC_VECTOR, "MC excp" }, \
+ { SVM_EXIT_EXCP_BASE + XM_VECTOR, "XF excp" }, \
+ { SVM_EXIT_INTR, "interrupt" }, \
+ { SVM_EXIT_NMI, "nmi" }, \
+ { SVM_EXIT_SMI, "smi" }, \
+ { SVM_EXIT_INIT, "init" }, \
+ { SVM_EXIT_VINTR, "vintr" }, \
+ { SVM_EXIT_CR0_SEL_WRITE, "cr0_sel_write" }, \
+ { SVM_EXIT_IDTR_READ, "read_idtr" }, \
+ { SVM_EXIT_GDTR_READ, "read_gdtr" }, \
+ { SVM_EXIT_LDTR_READ, "read_ldtr" }, \
+ { SVM_EXIT_TR_READ, "read_rt" }, \
+ { SVM_EXIT_IDTR_WRITE, "write_idtr" }, \
+ { SVM_EXIT_GDTR_WRITE, "write_gdtr" }, \
+ { SVM_EXIT_LDTR_WRITE, "write_ldtr" }, \
+ { SVM_EXIT_TR_WRITE, "write_rt" }, \
+ { SVM_EXIT_RDTSC, "rdtsc" }, \
+ { SVM_EXIT_RDPMC, "rdpmc" }, \
+ { SVM_EXIT_PUSHF, "pushf" }, \
+ { SVM_EXIT_POPF, "popf" }, \
+ { SVM_EXIT_CPUID, "cpuid" }, \
+ { SVM_EXIT_RSM, "rsm" }, \
+ { SVM_EXIT_IRET, "iret" }, \
+ { SVM_EXIT_SWINT, "swint" }, \
+ { SVM_EXIT_INVD, "invd" }, \
+ { SVM_EXIT_PAUSE, "pause" }, \
+ { SVM_EXIT_HLT, "hlt" }, \
+ { SVM_EXIT_INVLPG, "invlpg" }, \
+ { SVM_EXIT_INVLPGA, "invlpga" }, \
+ { SVM_EXIT_IOIO, "io" }, \
+ { SVM_EXIT_MSR, "msr" }, \
+ { SVM_EXIT_TASK_SWITCH, "task_switch" }, \
+ { SVM_EXIT_FERR_FREEZE, "ferr_freeze" }, \
+ { SVM_EXIT_SHUTDOWN, "shutdown" }, \
+ { SVM_EXIT_VMRUN, "vmrun" }, \
+ { SVM_EXIT_VMMCALL, "hypercall" }, \
+ { SVM_EXIT_VMLOAD, "vmload" }, \
+ { SVM_EXIT_VMSAVE, "vmsave" }, \
+ { SVM_EXIT_STGI, "stgi" }, \
+ { SVM_EXIT_CLGI, "clgi" }, \
+ { SVM_EXIT_SKINIT, "skinit" }, \
+ { SVM_EXIT_RDTSCP, "rdtscp" }, \
+ { SVM_EXIT_ICEBP, "icebp" }, \
+ { SVM_EXIT_WBINVD, "wbinvd" }, \
+ { SVM_EXIT_MONITOR, "monitor" }, \
+ { SVM_EXIT_MWAIT, "mwait" }, \
+ { SVM_EXIT_XSETBV, "xsetbv" }, \
+ { SVM_EXIT_EFER_WRITE_TRAP, "write_efer_trap" }, \
+ { SVM_EXIT_CR0_WRITE_TRAP, "write_cr0_trap" }, \
+ { SVM_EXIT_CR4_WRITE_TRAP, "write_cr4_trap" }, \
+ { SVM_EXIT_CR8_WRITE_TRAP, "write_cr8_trap" }, \
+ { SVM_EXIT_INVPCID, "invpcid" }, \
+ { SVM_EXIT_NPF, "npf" }, \
+ { SVM_EXIT_AVIC_INCOMPLETE_IPI, "avic_incomplete_ipi" }, \
+ { SVM_EXIT_AVIC_UNACCELERATED_ACCESS, "avic_unaccelerated_access" }, \
+ { SVM_EXIT_VMGEXIT, "vmgexit" }, \
+ { SVM_VMGEXIT_MMIO_READ, "vmgexit_mmio_read" }, \
+ { SVM_VMGEXIT_MMIO_WRITE, "vmgexit_mmio_write" }, \
+ { SVM_VMGEXIT_NMI_COMPLETE, "vmgexit_nmi_complete" }, \
+ { SVM_VMGEXIT_AP_HLT_LOOP, "vmgexit_ap_hlt_loop" }, \
+ { SVM_VMGEXIT_AP_JUMP_TABLE, "vmgexit_ap_jump_table" }, \
+ { SVM_VMGEXIT_PSC, "vmgexit_page_state_change" }, \
+ { SVM_VMGEXIT_GUEST_REQUEST, "vmgexit_guest_request" }, \
+ { SVM_VMGEXIT_EXT_GUEST_REQUEST, "vmgexit_ext_guest_request" }, \
+ { SVM_VMGEXIT_AP_CREATION, "vmgexit_ap_creation" }, \
+ { SVM_VMGEXIT_HV_FEATURES, "vmgexit_hypervisor_feature" }, \
+ { SVM_EXIT_ERR, "invalid_guest_state" }
+
+
+#endif /* _UAPI__SVM_H */
diff --git a/arch/x86/include/asm/swab.h b/arch/x86/include/uapi/asm/swab.h
index 557cd9f00661..cd3fd8ddbe9a 100644
--- a/arch/x86/include/asm/swab.h
+++ b/arch/x86/include/uapi/asm/swab.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _ASM_X86_SWAB_H
#define _ASM_X86_SWAB_H
@@ -6,22 +7,7 @@
static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
{
-#ifdef __i386__
-# ifdef CONFIG_X86_BSWAP
- asm("bswap %0" : "=r" (val) : "0" (val));
-# else
- asm("xchgb %b0,%h0\n\t" /* swap lower bytes */
- "rorl $16,%0\n\t" /* swap words */
- "xchgb %b0,%h0" /* swap higher bytes */
- : "=q" (val)
- : "0" (val));
-# endif
-
-#else /* __i386__ */
- asm("bswapl %0"
- : "=r" (val)
- : "0" (val));
-#endif
+ asm("bswapl %0" : "=r" (val) : "0" (val));
return val;
}
#define __arch_swab32 __arch_swab32
@@ -37,22 +23,12 @@ static inline __attribute_const__ __u64 __arch_swab64(__u64 val)
__u64 u;
} v;
v.u = val;
-# ifdef CONFIG_X86_BSWAP
asm("bswapl %0 ; bswapl %1 ; xchgl %0,%1"
: "=r" (v.s.a), "=r" (v.s.b)
: "0" (v.s.a), "1" (v.s.b));
-# else
- v.s.a = __arch_swab32(v.s.a);
- v.s.b = __arch_swab32(v.s.b);
- asm("xchgl %0,%1"
- : "=r" (v.s.a), "=r" (v.s.b)
- : "0" (v.s.a), "1" (v.s.b));
-# endif
return v.u;
#else /* __i386__ */
- asm("bswapq %0"
- : "=r" (val)
- : "0" (val));
+ asm("bswapq %0" : "=r" (val) : "0" (val));
return val;
#endif
}
diff --git a/arch/x86/include/uapi/asm/ucontext.h b/arch/x86/include/uapi/asm/ucontext.h
new file mode 100644
index 000000000000..5657b7a49f03
--- /dev/null
+++ b/arch/x86/include/uapi/asm/ucontext.h
@@ -0,0 +1,56 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _ASM_X86_UCONTEXT_H
+#define _ASM_X86_UCONTEXT_H
+
+/*
+ * Indicates the presence of extended state information in the memory
+ * layout pointed by the fpstate pointer in the ucontext's sigcontext
+ * struct (uc_mcontext).
+ */
+#define UC_FP_XSTATE 0x1
+
+#ifdef __x86_64__
+/*
+ * UC_SIGCONTEXT_SS will be set when delivering 64-bit or x32 signals on
+ * kernels that save SS in the sigcontext. All kernels that set
+ * UC_SIGCONTEXT_SS will correctly restore at least the low 32 bits of esp
+ * regardless of SS (i.e. they implement espfix).
+ *
+ * Kernels that set UC_SIGCONTEXT_SS will also set UC_STRICT_RESTORE_SS
+ * when delivering a signal that came from 64-bit code.
+ *
+ * Sigreturn restores SS as follows:
+ *
+ * if (saved SS is valid || UC_STRICT_RESTORE_SS is set ||
+ * saved CS is not 64-bit)
+ * new SS = saved SS (will fail IRET and signal if invalid)
+ * else
+ * new SS = a flat 32-bit data segment
+ *
+ * This behavior serves three purposes:
+ *
+ * - Legacy programs that construct a 64-bit sigcontext from scratch
+ * with zero or garbage in the SS slot (e.g. old CRIU) and call
+ * sigreturn will still work.
+ *
+ * - Old DOSEMU versions sometimes catch a signal from a segmented
+ * context, delete the old SS segment (with modify_ldt), and change
+ * the saved CS to a 64-bit segment. These DOSEMU versions expect
+ * sigreturn to send them back to 64-bit mode without killing them,
+ * despite the fact that the SS selector when the signal was raised is
+ * no longer valid. UC_STRICT_RESTORE_SS will be clear, so the kernel
+ * will fix up SS for these DOSEMU versions.
+ *
+ * - Old and new programs that catch a signal and return without
+ * modifying the saved context will end up in exactly the state they
+ * started in, even if they were running in a segmented context when
+ * the signal was raised.. Old kernels would lose track of the
+ * previous SS value.
+ */
+#define UC_SIGCONTEXT_SS 0x2
+#define UC_STRICT_RESTORE_SS 0x4
+#endif
+
+#include <asm-generic/ucontext.h>
+
+#endif /* _ASM_X86_UCONTEXT_H */
diff --git a/arch/x86/include/uapi/asm/unistd.h b/arch/x86/include/uapi/asm/unistd.h
new file mode 100644
index 000000000000..be5e2e747f50
--- /dev/null
+++ b/arch/x86/include/uapi/asm/unistd.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_UNISTD_H
+#define _UAPI_ASM_X86_UNISTD_H
+
+/*
+ * x32 syscall flag bit. Some user programs expect syscall NR macros
+ * and __X32_SYSCALL_BIT to have type int, even though syscall numbers
+ * are, for practical purposes, unsigned long.
+ *
+ * Fortunately, expressions like (nr & ~__X32_SYSCALL_BIT) do the right
+ * thing regardless.
+ */
+#define __X32_SYSCALL_BIT 0x40000000
+
+#ifndef __KERNEL__
+# ifdef __i386__
+# include <asm/unistd_32.h>
+# elif defined(__ILP32__)
+# include <asm/unistd_x32.h>
+# else
+# include <asm/unistd_64.h>
+# endif
+#endif
+
+#endif /* _UAPI_ASM_X86_UNISTD_H */
diff --git a/arch/x86/include/uapi/asm/vm86.h b/arch/x86/include/uapi/asm/vm86.h
new file mode 100644
index 000000000000..18909b8050bc
--- /dev/null
+++ b/arch/x86/include/uapi/asm/vm86.h
@@ -0,0 +1,130 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_VM86_H
+#define _UAPI_ASM_X86_VM86_H
+
+/*
+ * I'm guessing at the VIF/VIP flag usage, but hope that this is how
+ * the Pentium uses them. Linux will return from vm86 mode when both
+ * VIF and VIP is set.
+ *
+ * On a Pentium, we could probably optimize the virtual flags directly
+ * in the eflags register instead of doing it "by hand" in vflags...
+ *
+ * Linus
+ */
+
+#include <asm/processor-flags.h>
+
+#define BIOSSEG 0x0f000
+
+#define CPU_086 0
+#define CPU_186 1
+#define CPU_286 2
+#define CPU_386 3
+#define CPU_486 4
+#define CPU_586 5
+
+/*
+ * Return values for the 'vm86()' system call
+ */
+#define VM86_TYPE(retval) ((retval) & 0xff)
+#define VM86_ARG(retval) ((retval) >> 8)
+
+#define VM86_SIGNAL 0 /* return due to signal */
+#define VM86_UNKNOWN 1 /* unhandled GP fault
+ - IO-instruction or similar */
+#define VM86_INTx 2 /* int3/int x instruction (ARG = x) */
+#define VM86_STI 3 /* sti/popf/iret instruction enabled
+ virtual interrupts */
+
+/*
+ * Additional return values when invoking new vm86()
+ */
+#define VM86_PICRETURN 4 /* return due to pending PIC request */
+#define VM86_TRAP 6 /* return due to DOS-debugger request */
+
+/*
+ * function codes when invoking new vm86()
+ */
+#define VM86_PLUS_INSTALL_CHECK 0
+#define VM86_ENTER 1
+#define VM86_ENTER_NO_BYPASS 2
+#define VM86_REQUEST_IRQ 3
+#define VM86_FREE_IRQ 4
+#define VM86_GET_IRQ_BITS 5
+#define VM86_GET_AND_RESET_IRQ 6
+
+/*
+ * This is the stack-layout seen by the user space program when we have
+ * done a translation of "SAVE_ALL" from vm86 mode. The real kernel layout
+ * is 'kernel_vm86_regs' (see below).
+ */
+
+struct vm86_regs {
+/*
+ * normal regs, with special meaning for the segment descriptors..
+ */
+ long ebx;
+ long ecx;
+ long edx;
+ long esi;
+ long edi;
+ long ebp;
+ long eax;
+ long __null_ds;
+ long __null_es;
+ long __null_fs;
+ long __null_gs;
+ long orig_eax;
+ long eip;
+ unsigned short cs, __csh;
+ long eflags;
+ long esp;
+ unsigned short ss, __ssh;
+/*
+ * these are specific to v86 mode:
+ */
+ unsigned short es, __esh;
+ unsigned short ds, __dsh;
+ unsigned short fs, __fsh;
+ unsigned short gs, __gsh;
+};
+
+struct revectored_struct {
+ unsigned long __map[8]; /* 256 bits */
+};
+
+struct vm86_struct {
+ struct vm86_regs regs;
+ unsigned long flags;
+ unsigned long screen_bitmap; /* unused, preserved by vm86() */
+ unsigned long cpu_type;
+ struct revectored_struct int_revectored;
+ struct revectored_struct int21_revectored;
+};
+
+/*
+ * flags masks
+ */
+#define VM86_SCREEN_BITMAP 0x0001 /* no longer supported */
+
+struct vm86plus_info_struct {
+ unsigned long force_return_for_pic:1;
+ unsigned long vm86dbg_active:1; /* for debugger */
+ unsigned long vm86dbg_TFpendig:1; /* for debugger */
+ unsigned long unused:28;
+ unsigned long is_vm86pus:1; /* for vm86 internal use */
+ unsigned char vm86dbg_intxxtab[32]; /* for debugger */
+};
+struct vm86plus_struct {
+ struct vm86_regs regs;
+ unsigned long flags;
+ unsigned long screen_bitmap;
+ unsigned long cpu_type;
+ struct revectored_struct int_revectored;
+ struct revectored_struct int21_revectored;
+ struct vm86plus_info_struct vm86plus;
+};
+
+
+#endif /* _UAPI_ASM_X86_VM86_H */
diff --git a/arch/x86/include/uapi/asm/vmx.h b/arch/x86/include/uapi/asm/vmx.h
new file mode 100644
index 000000000000..a5faf6d88f1b
--- /dev/null
+++ b/arch/x86/include/uapi/asm/vmx.h
@@ -0,0 +1,167 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * vmx.h: VMX Architecture related definitions
+ * Copyright (c) 2004, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
+ * Place - Suite 330, Boston, MA 02111-1307 USA.
+ *
+ * A few random additions are:
+ * Copyright (C) 2006 Qumranet
+ * Avi Kivity <avi@qumranet.com>
+ * Yaniv Kamay <yaniv@qumranet.com>
+ *
+ */
+#ifndef _UAPIVMX_H
+#define _UAPIVMX_H
+
+
+#define VMX_EXIT_REASONS_FAILED_VMENTRY 0x80000000
+#define VMX_EXIT_REASONS_SGX_ENCLAVE_MODE 0x08000000
+
+#define EXIT_REASON_EXCEPTION_NMI 0
+#define EXIT_REASON_EXTERNAL_INTERRUPT 1
+#define EXIT_REASON_TRIPLE_FAULT 2
+#define EXIT_REASON_INIT_SIGNAL 3
+#define EXIT_REASON_SIPI_SIGNAL 4
+
+#define EXIT_REASON_INTERRUPT_WINDOW 7
+#define EXIT_REASON_NMI_WINDOW 8
+#define EXIT_REASON_TASK_SWITCH 9
+#define EXIT_REASON_CPUID 10
+#define EXIT_REASON_HLT 12
+#define EXIT_REASON_INVD 13
+#define EXIT_REASON_INVLPG 14
+#define EXIT_REASON_RDPMC 15
+#define EXIT_REASON_RDTSC 16
+#define EXIT_REASON_VMCALL 18
+#define EXIT_REASON_VMCLEAR 19
+#define EXIT_REASON_VMLAUNCH 20
+#define EXIT_REASON_VMPTRLD 21
+#define EXIT_REASON_VMPTRST 22
+#define EXIT_REASON_VMREAD 23
+#define EXIT_REASON_VMRESUME 24
+#define EXIT_REASON_VMWRITE 25
+#define EXIT_REASON_VMOFF 26
+#define EXIT_REASON_VMON 27
+#define EXIT_REASON_CR_ACCESS 28
+#define EXIT_REASON_DR_ACCESS 29
+#define EXIT_REASON_IO_INSTRUCTION 30
+#define EXIT_REASON_MSR_READ 31
+#define EXIT_REASON_MSR_WRITE 32
+#define EXIT_REASON_INVALID_STATE 33
+#define EXIT_REASON_MSR_LOAD_FAIL 34
+#define EXIT_REASON_MWAIT_INSTRUCTION 36
+#define EXIT_REASON_MONITOR_TRAP_FLAG 37
+#define EXIT_REASON_MONITOR_INSTRUCTION 39
+#define EXIT_REASON_PAUSE_INSTRUCTION 40
+#define EXIT_REASON_MCE_DURING_VMENTRY 41
+#define EXIT_REASON_TPR_BELOW_THRESHOLD 43
+#define EXIT_REASON_APIC_ACCESS 44
+#define EXIT_REASON_EOI_INDUCED 45
+#define EXIT_REASON_GDTR_IDTR 46
+#define EXIT_REASON_LDTR_TR 47
+#define EXIT_REASON_EPT_VIOLATION 48
+#define EXIT_REASON_EPT_MISCONFIG 49
+#define EXIT_REASON_INVEPT 50
+#define EXIT_REASON_RDTSCP 51
+#define EXIT_REASON_PREEMPTION_TIMER 52
+#define EXIT_REASON_INVVPID 53
+#define EXIT_REASON_WBINVD 54
+#define EXIT_REASON_XSETBV 55
+#define EXIT_REASON_APIC_WRITE 56
+#define EXIT_REASON_RDRAND 57
+#define EXIT_REASON_INVPCID 58
+#define EXIT_REASON_VMFUNC 59
+#define EXIT_REASON_ENCLS 60
+#define EXIT_REASON_RDSEED 61
+#define EXIT_REASON_PML_FULL 62
+#define EXIT_REASON_XSAVES 63
+#define EXIT_REASON_XRSTORS 64
+#define EXIT_REASON_UMWAIT 67
+#define EXIT_REASON_TPAUSE 68
+#define EXIT_REASON_BUS_LOCK 74
+#define EXIT_REASON_NOTIFY 75
+
+#define VMX_EXIT_REASONS \
+ { EXIT_REASON_EXCEPTION_NMI, "EXCEPTION_NMI" }, \
+ { EXIT_REASON_EXTERNAL_INTERRUPT, "EXTERNAL_INTERRUPT" }, \
+ { EXIT_REASON_TRIPLE_FAULT, "TRIPLE_FAULT" }, \
+ { EXIT_REASON_INIT_SIGNAL, "INIT_SIGNAL" }, \
+ { EXIT_REASON_SIPI_SIGNAL, "SIPI_SIGNAL" }, \
+ { EXIT_REASON_INTERRUPT_WINDOW, "INTERRUPT_WINDOW" }, \
+ { EXIT_REASON_NMI_WINDOW, "NMI_WINDOW" }, \
+ { EXIT_REASON_TASK_SWITCH, "TASK_SWITCH" }, \
+ { EXIT_REASON_CPUID, "CPUID" }, \
+ { EXIT_REASON_HLT, "HLT" }, \
+ { EXIT_REASON_INVD, "INVD" }, \
+ { EXIT_REASON_INVLPG, "INVLPG" }, \
+ { EXIT_REASON_RDPMC, "RDPMC" }, \
+ { EXIT_REASON_RDTSC, "RDTSC" }, \
+ { EXIT_REASON_VMCALL, "VMCALL" }, \
+ { EXIT_REASON_VMCLEAR, "VMCLEAR" }, \
+ { EXIT_REASON_VMLAUNCH, "VMLAUNCH" }, \
+ { EXIT_REASON_VMPTRLD, "VMPTRLD" }, \
+ { EXIT_REASON_VMPTRST, "VMPTRST" }, \
+ { EXIT_REASON_VMREAD, "VMREAD" }, \
+ { EXIT_REASON_VMRESUME, "VMRESUME" }, \
+ { EXIT_REASON_VMWRITE, "VMWRITE" }, \
+ { EXIT_REASON_VMOFF, "VMOFF" }, \
+ { EXIT_REASON_VMON, "VMON" }, \
+ { EXIT_REASON_CR_ACCESS, "CR_ACCESS" }, \
+ { EXIT_REASON_DR_ACCESS, "DR_ACCESS" }, \
+ { EXIT_REASON_IO_INSTRUCTION, "IO_INSTRUCTION" }, \
+ { EXIT_REASON_MSR_READ, "MSR_READ" }, \
+ { EXIT_REASON_MSR_WRITE, "MSR_WRITE" }, \
+ { EXIT_REASON_INVALID_STATE, "INVALID_STATE" }, \
+ { EXIT_REASON_MSR_LOAD_FAIL, "MSR_LOAD_FAIL" }, \
+ { EXIT_REASON_MWAIT_INSTRUCTION, "MWAIT_INSTRUCTION" }, \
+ { EXIT_REASON_MONITOR_TRAP_FLAG, "MONITOR_TRAP_FLAG" }, \
+ { EXIT_REASON_MONITOR_INSTRUCTION, "MONITOR_INSTRUCTION" }, \
+ { EXIT_REASON_PAUSE_INSTRUCTION, "PAUSE_INSTRUCTION" }, \
+ { EXIT_REASON_MCE_DURING_VMENTRY, "MCE_DURING_VMENTRY" }, \
+ { EXIT_REASON_TPR_BELOW_THRESHOLD, "TPR_BELOW_THRESHOLD" }, \
+ { EXIT_REASON_APIC_ACCESS, "APIC_ACCESS" }, \
+ { EXIT_REASON_EOI_INDUCED, "EOI_INDUCED" }, \
+ { EXIT_REASON_GDTR_IDTR, "GDTR_IDTR" }, \
+ { EXIT_REASON_LDTR_TR, "LDTR_TR" }, \
+ { EXIT_REASON_EPT_VIOLATION, "EPT_VIOLATION" }, \
+ { EXIT_REASON_EPT_MISCONFIG, "EPT_MISCONFIG" }, \
+ { EXIT_REASON_INVEPT, "INVEPT" }, \
+ { EXIT_REASON_RDTSCP, "RDTSCP" }, \
+ { EXIT_REASON_PREEMPTION_TIMER, "PREEMPTION_TIMER" }, \
+ { EXIT_REASON_INVVPID, "INVVPID" }, \
+ { EXIT_REASON_WBINVD, "WBINVD" }, \
+ { EXIT_REASON_XSETBV, "XSETBV" }, \
+ { EXIT_REASON_APIC_WRITE, "APIC_WRITE" }, \
+ { EXIT_REASON_RDRAND, "RDRAND" }, \
+ { EXIT_REASON_INVPCID, "INVPCID" }, \
+ { EXIT_REASON_VMFUNC, "VMFUNC" }, \
+ { EXIT_REASON_ENCLS, "ENCLS" }, \
+ { EXIT_REASON_RDSEED, "RDSEED" }, \
+ { EXIT_REASON_PML_FULL, "PML_FULL" }, \
+ { EXIT_REASON_XSAVES, "XSAVES" }, \
+ { EXIT_REASON_XRSTORS, "XRSTORS" }, \
+ { EXIT_REASON_UMWAIT, "UMWAIT" }, \
+ { EXIT_REASON_TPAUSE, "TPAUSE" }, \
+ { EXIT_REASON_BUS_LOCK, "BUS_LOCK" }, \
+ { EXIT_REASON_NOTIFY, "NOTIFY" }
+
+#define VMX_EXIT_REASON_FLAGS \
+ { VMX_EXIT_REASONS_FAILED_VMENTRY, "FAILED_VMENTRY" }
+
+#define VMX_ABORT_SAVE_GUEST_MSR_FAIL 1
+#define VMX_ABORT_LOAD_HOST_PDPTE_FAIL 2
+#define VMX_ABORT_LOAD_HOST_MSR_FAIL 4
+
+#endif /* _UAPIVMX_H */
diff --git a/arch/x86/include/uapi/asm/vsyscall.h b/arch/x86/include/uapi/asm/vsyscall.h
new file mode 100644
index 000000000000..75275f547444
--- /dev/null
+++ b/arch/x86/include/uapi/asm/vsyscall.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_VSYSCALL_H
+#define _UAPI_ASM_X86_VSYSCALL_H
+
+enum vsyscall_num {
+ __NR_vgettimeofday,
+ __NR_vtime,
+ __NR_vgetcpu,
+};
+
+#define VSYSCALL_ADDR (-10UL << 20)
+
+#endif /* _UAPI_ASM_X86_VSYSCALL_H */
diff --git a/arch/x86/kernel/.gitignore b/arch/x86/kernel/.gitignore
index 08f4fd731469..ef66569e7e22 100644
--- a/arch/x86/kernel/.gitignore
+++ b/arch/x86/kernel/.gitignore
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-only
vsyscall.lds
vsyscall_32.lds
vmlinux.lds
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 7338ef2218bc..dd61752f4c96 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -1,67 +1,82 @@
+# SPDX-License-Identifier: GPL-2.0
#
# Makefile for the linux kernel.
#
-extra-y := head_$(BITS).o head$(BITS).o head.o init_task.o vmlinux.lds
+extra-y += vmlinux.lds
CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
ifdef CONFIG_FUNCTION_TRACER
# Do not profile debug and lowlevel utilities
CFLAGS_REMOVE_tsc.o = -pg
-CFLAGS_REMOVE_rtc.o = -pg
CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
CFLAGS_REMOVE_pvclock.o = -pg
CFLAGS_REMOVE_kvmclock.o = -pg
CFLAGS_REMOVE_ftrace.o = -pg
CFLAGS_REMOVE_early_printk.o = -pg
+CFLAGS_REMOVE_head64.o = -pg
+CFLAGS_REMOVE_sev.o = -pg
endif
-#
-# vsyscalls (which work on the user stack) should have
-# no stack-protector checks:
-#
-nostackp := $(call cc-option, -fno-stack-protector)
-CFLAGS_vsyscall_64.o := $(PROFILING) -g0 $(nostackp)
-CFLAGS_hpet.o := $(nostackp)
-CFLAGS_tsc.o := $(nostackp)
-CFLAGS_paravirt.o := $(nostackp)
-GCOV_PROFILE_vsyscall_64.o := n
-GCOV_PROFILE_hpet.o := n
-GCOV_PROFILE_tsc.o := n
-GCOV_PROFILE_paravirt.o := n
-
-obj-y := process_$(BITS).o signal.o entry_$(BITS).o
-obj-y += traps.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
-obj-y += time.o ioport.o ldt.o dumpstack.o
-obj-y += setup.o x86_init.o i8259.o irqinit.o jump_label.o
+KASAN_SANITIZE_head$(BITS).o := n
+KASAN_SANITIZE_dumpstack.o := n
+KASAN_SANITIZE_dumpstack_$(BITS).o := n
+KASAN_SANITIZE_stacktrace.o := n
+KASAN_SANITIZE_paravirt.o := n
+KASAN_SANITIZE_sev.o := n
+
+# With some compiler versions the generated code results in boot hangs, caused
+# by several compilation units. To be safe, disable all instrumentation.
+KCSAN_SANITIZE := n
+KMSAN_SANITIZE_head$(BITS).o := n
+KMSAN_SANITIZE_nmi.o := n
+
+# If instrumentation of this dir is enabled, boot hangs during first second.
+# Probably could be more selective here, but note that files related to irqs,
+# boot, dumpstack/stacktrace, etc are either non-interesting or can lead to
+# non-deterministic coverage.
+KCOV_INSTRUMENT := n
+
+CFLAGS_irq.o := -I $(srctree)/$(src)/../include/asm/trace
+
+obj-y += head_$(BITS).o
+obj-y += head$(BITS).o
+obj-y += ebda.o
+obj-y += platform-quirks.o
+obj-y += process_$(BITS).o signal.o signal_$(BITS).o
+obj-y += traps.o idt.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
+obj-y += time.o ioport.o dumpstack.o nmi.o
+obj-$(CONFIG_MODIFY_LDT_SYSCALL) += ldt.o
+obj-y += setup.o x86_init.o i8259.o irqinit.o
+obj-$(CONFIG_JUMP_LABEL) += jump_label.o
obj-$(CONFIG_IRQ_WORK) += irq_work.o
-obj-$(CONFIG_X86_32) += probe_roms_32.o
-obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o
-obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o
-obj-$(CONFIG_X86_64) += syscall_64.o vsyscall_64.o
+obj-y += probe_roms.o
+obj-$(CONFIG_X86_32) += sys_ia32.o
+obj-$(CONFIG_IA32_EMULATION) += sys_ia32.o signal_32.o
+obj-$(CONFIG_X86_64) += sys_x86_64.o
+obj-$(CONFIG_X86_ESPFIX64) += espfix_64.o
+obj-$(CONFIG_SYSFS) += ksysfs.o
obj-y += bootflag.o e820.o
obj-y += pci-dma.o quirks.o topology.o kdebugfs.o
-obj-y += alternative.o i8253.o pci-nommu.o hw_breakpoint.o
-obj-y += tsc.o io_delay.o rtc.o
-obj-y += pci-iommu_table.o
+obj-y += alternative.o i8253.o hw_breakpoint.o
+obj-y += tsc.o tsc_msr.o io_delay.o rtc.o
obj-y += resource.o
+obj-y += irqflags.o
+obj-y += static_call.o
-obj-y += trampoline.o trampoline_$(BITS).o
obj-y += process.o
-obj-y += i387.o xsave.o
+obj-y += fpu/
obj-y += ptrace.o
obj-$(CONFIG_X86_32) += tls.o
obj-$(CONFIG_IA32_EMULATION) += tls.o
obj-y += step.o
obj-$(CONFIG_INTEL_TXT) += tboot.o
obj-$(CONFIG_ISA_DMA_API) += i8237.o
-obj-$(CONFIG_STACKTRACE) += stacktrace.o
+obj-y += stacktrace.o
obj-y += cpu/
obj-y += acpi/
obj-y += reboot.o
-obj-$(CONFIG_X86_32) += reboot_32.o
-obj-$(CONFIG_MCA) += mca_32.o
obj-$(CONFIG_X86_MSR) += msr.o
obj-$(CONFIG_X86_CPUID) += cpuid.o
obj-$(CONFIG_PCI) += early-quirks.o
@@ -69,58 +84,73 @@ apm-y := apm_32.o
obj-$(CONFIG_APM) += apm.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_SMP) += smpboot.o
-obj-$(CONFIG_SMP) += tsc_sync.o
+obj-$(CONFIG_X86_TSC) += tsc_sync.o
obj-$(CONFIG_SMP) += setup_percpu.o
obj-$(CONFIG_X86_MPPARSE) += mpparse.o
obj-y += apic/
obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
+obj-$(CONFIG_FUNCTION_TRACER) += ftrace_$(BITS).o
obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
obj-$(CONFIG_FTRACE_SYSCALLS) += ftrace.o
-obj-$(CONFIG_KEXEC) += machine_kexec_$(BITS).o
-obj-$(CONFIG_KEXEC) += relocate_kernel_$(BITS).o crash.o
+obj-$(CONFIG_X86_TSC) += trace_clock.o
+obj-$(CONFIG_TRACING) += trace.o
+obj-$(CONFIG_RETHOOK) += rethook.o
+obj-$(CONFIG_CRASH_CORE) += crash_core_$(BITS).o
+obj-$(CONFIG_KEXEC_CORE) += machine_kexec_$(BITS).o
+obj-$(CONFIG_KEXEC_CORE) += relocate_kernel_$(BITS).o crash.o
+obj-$(CONFIG_KEXEC_FILE) += kexec-bzimage64.o
obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o
-obj-$(CONFIG_KPROBES) += kprobes.o
+obj-y += kprobes/
obj-$(CONFIG_MODULES) += module.o
-obj-$(CONFIG_DOUBLEFAULT) += doublefault_32.o
+obj-$(CONFIG_X86_32) += doublefault_32.o
obj-$(CONFIG_KGDB) += kgdb.o
obj-$(CONFIG_VM86) += vm86_32.o
obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
obj-$(CONFIG_HPET_TIMER) += hpet.o
-obj-$(CONFIG_APB_TIMER) += apb_timer.o
obj-$(CONFIG_AMD_NB) += amd_nb.o
-obj-$(CONFIG_DEBUG_RODATA_TEST) += test_rodata.o
-obj-$(CONFIG_DEBUG_NX_TEST) += test_nx.o
+obj-$(CONFIG_DEBUG_NMI_SELFTEST) += nmi_selftest.o
-obj-$(CONFIG_KVM_GUEST) += kvm.o
-obj-$(CONFIG_KVM_CLOCK) += kvmclock.o
-obj-$(CONFIG_PARAVIRT) += paravirt.o paravirt_patch_$(BITS).o
+obj-$(CONFIG_KVM_GUEST) += kvm.o kvmclock.o
+obj-$(CONFIG_PARAVIRT) += paravirt.o
obj-$(CONFIG_PARAVIRT_SPINLOCKS)+= paravirt-spinlocks.o
obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o
+obj-$(CONFIG_X86_PMEM_LEGACY_DEVICE) += pmem.o
-obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
+obj-$(CONFIG_JAILHOUSE_GUEST) += jailhouse.o
-microcode-y := microcode_core.o
-microcode-$(CONFIG_MICROCODE_INTEL) += microcode_intel.o
-microcode-$(CONFIG_MICROCODE_AMD) += microcode_amd.o
-obj-$(CONFIG_MICROCODE) += microcode.o
+obj-$(CONFIG_EISA) += eisa.o
+obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o
-obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o
obj-$(CONFIG_OF) += devicetree.o
+obj-$(CONFIG_UPROBES) += uprobes.o
+
+obj-$(CONFIG_PERF_EVENTS) += perf_regs.o
+obj-$(CONFIG_TRACING) += tracepoint.o
+obj-$(CONFIG_SCHED_MC_PRIO) += itmt.o
+obj-$(CONFIG_X86_UMIP) += umip.o
+
+obj-$(CONFIG_UNWINDER_ORC) += unwind_orc.o
+obj-$(CONFIG_UNWINDER_FRAME_POINTER) += unwind_frame.o
+obj-$(CONFIG_UNWINDER_GUESS) += unwind_guess.o
+
+obj-$(CONFIG_AMD_MEM_ENCRYPT) += sev.o
+
+obj-$(CONFIG_CFI_CLANG) += cfi.o
+
+obj-$(CONFIG_CALL_THUNKS) += callthunks.o
###
# 64 bit specific files
ifeq ($(CONFIG_X86_64),y)
obj-$(CONFIG_AUDIT) += audit_64.o
- obj-$(CONFIG_GART_IOMMU) += pci-gart_64.o aperture_64.o
- obj-$(CONFIG_CALGARY_IOMMU) += pci-calgary_64.o tce_64.o
- obj-$(CONFIG_AMD_IOMMU) += amd_iommu_init.o amd_iommu.o
+ obj-$(CONFIG_GART_IOMMU) += amd_gart_64.o aperture_64.o
- obj-$(CONFIG_PCI_MMCONFIG) += mmconf-fam10h_64.o
+ obj-$(CONFIG_MMCONF_FAM10H) += mmconf-fam10h_64.o
obj-y += vsmp_64.o
endif
diff --git a/arch/x86/kernel/acpi/Makefile b/arch/x86/kernel/acpi/Makefile
index 6f35260bb3ef..fc17b3f136fe 100644
--- a/arch/x86/kernel/acpi/Makefile
+++ b/arch/x86/kernel/acpi/Makefile
@@ -1,14 +1,11 @@
-subdir- := realmode
+# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_ACPI) += boot.o
-obj-$(CONFIG_ACPI_SLEEP) += sleep.o wakeup_rm.o wakeup_$(BITS).o
+obj-$(CONFIG_ACPI_SLEEP) += sleep.o wakeup_$(BITS).o
+obj-$(CONFIG_ACPI_APEI) += apei.o
+obj-$(CONFIG_ACPI_CPPC_LIB) += cppc.o
ifneq ($(CONFIG_ACPI_PROCESSOR),)
obj-y += cstate.o
endif
-$(obj)/wakeup_rm.o: $(obj)/realmode/wakeup.bin
-
-$(obj)/realmode/wakeup.bin: FORCE
- $(Q)$(MAKE) $(build)=$(obj)/realmode
-
diff --git a/arch/x86/kernel/acpi/apei.c b/arch/x86/kernel/acpi/apei.c
new file mode 100644
index 000000000000..0916f00a992e
--- /dev/null
+++ b/arch/x86/kernel/acpi/apei.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Arch-specific APEI-related functions.
+ */
+
+#include <acpi/apei.h>
+
+#include <asm/mce.h>
+#include <asm/tlbflush.h>
+
+int arch_apei_enable_cmcff(struct acpi_hest_header *hest_hdr, void *data)
+{
+#ifdef CONFIG_X86_MCE
+ int i;
+ struct acpi_hest_ia_corrected *cmc;
+ struct acpi_hest_ia_error_bank *mc_bank;
+
+ cmc = (struct acpi_hest_ia_corrected *)hest_hdr;
+ if (!cmc->enabled)
+ return 0;
+
+ /*
+ * We expect HEST to provide a list of MC banks that report errors
+ * in firmware first mode. Otherwise, return non-zero value to
+ * indicate that we are done parsing HEST.
+ */
+ if (!(cmc->flags & ACPI_HEST_FIRMWARE_FIRST) ||
+ !cmc->num_hardware_banks)
+ return 1;
+
+ pr_info("HEST: Enabling Firmware First mode for corrected errors.\n");
+
+ mc_bank = (struct acpi_hest_ia_error_bank *)(cmc + 1);
+ for (i = 0; i < cmc->num_hardware_banks; i++, mc_bank++)
+ mce_disable_bank(mc_bank->bank_number);
+#endif
+ return 1;
+}
+
+void arch_apei_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)
+{
+#ifdef CONFIG_X86_MCE
+ apei_mce_report_mem_error(sev, mem_err);
+#endif
+}
+
+int arch_apei_report_x86_error(struct cper_ia_proc_ctx *ctx_info, u64 lapic_id)
+{
+ return apei_smca_report_x86_error(ctx_info, lapic_id);
+}
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 9a966c579af5..21b542a6866c 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -1,85 +1,90 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
* boot.c - Architecture-Specific Low-Level ACPI Boot Support
*
* Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
* Copyright (C) 2001 Jun Nakajima <jun.nakajima@intel.com>
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
+#define pr_fmt(fmt) "ACPI: " fmt
#include <linux/init.h>
#include <linux/acpi.h>
#include <linux/acpi_pmtmr.h>
#include <linux/efi.h>
#include <linux/cpumask.h>
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/dmi.h>
#include <linux/irq.h>
#include <linux/slab.h>
-#include <linux/bootmem.h>
+#include <linux/memblock.h>
#include <linux/ioport.h>
#include <linux/pci.h>
+#include <linux/efi-bgrt.h>
+#include <linux/serial_core.h>
+#include <linux/pgtable.h>
+#include <asm/e820/api.h>
+#include <asm/irqdomain.h>
#include <asm/pci_x86.h>
-#include <asm/pgtable.h>
#include <asm/io_apic.h>
#include <asm/apic.h>
#include <asm/io.h>
#include <asm/mpspec.h>
#include <asm/smp.h>
+#include <asm/i8259.h>
+#include <asm/setup.h>
+#include "sleep.h" /* To include x86_acpi_suspend_lowlevel */
static int __initdata acpi_force = 0;
-u32 acpi_rsdt_forced;
int acpi_disabled;
EXPORT_SYMBOL(acpi_disabled);
#ifdef CONFIG_X86_64
# include <asm/proto.h>
-# include <asm/numa_64.h>
#endif /* X86 */
-#define BAD_MADT_ENTRY(entry, end) ( \
- (!entry) || (unsigned long)entry + sizeof(*entry) > end || \
- ((struct acpi_subtable_header *)entry)->length < sizeof(*entry))
-
-#define PREFIX "ACPI: "
-
int acpi_noirq; /* skip ACPI IRQ initialization */
+static int acpi_nobgrt; /* skip ACPI BGRT */
int acpi_pci_disabled; /* skip ACPI PCI scan and IRQ initialization */
EXPORT_SYMBOL(acpi_pci_disabled);
int acpi_lapic;
int acpi_ioapic;
int acpi_strict;
+int acpi_disable_cmcff;
+/* ACPI SCI override configuration */
u8 acpi_sci_flags __initdata;
-int acpi_sci_override_gsi __initdata;
+u32 acpi_sci_override_gsi __initdata = INVALID_ACPI_IRQ;
int acpi_skip_timer_override __initdata;
int acpi_use_timer_override __initdata;
int acpi_fix_pin2_polarity __initdata;
#ifdef CONFIG_X86_LOCAL_APIC
static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE;
+static bool acpi_support_online_capable;
#endif
-#ifndef __HAVE_ARCH_CMPXCHG
-#warning ACPI uses CMPXCHG, i486 and later hardware
+#ifdef CONFIG_X86_64
+/* Physical address of the Multiprocessor Wakeup Structure mailbox */
+static u64 acpi_mp_wake_mailbox_paddr;
+/* Virtual address of the Multiprocessor Wakeup Structure mailbox */
+static struct acpi_madt_multiproc_wakeup_mailbox *acpi_mp_wake_mailbox;
+#endif
+
+#ifdef CONFIG_X86_IO_APIC
+/*
+ * Locks related to IOAPIC hotplug
+ * Hotplug side:
+ * ->device_hotplug_lock
+ * ->acpi_ioapic_lock
+ * ->ioapic_lock
+ * Interrupt mapping side:
+ * ->acpi_ioapic_lock
+ * ->ioapic_mutex
+ * ->ioapic_lock
+ */
+static DEFINE_MUTEX(acpi_ioapic_lock);
#endif
/* --------------------------------------------------------------------------
@@ -101,71 +106,25 @@ static u32 isa_irq_to_gsi[NR_IRQS_LEGACY] __read_mostly = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
};
-static unsigned int gsi_to_irq(unsigned int gsi)
-{
- unsigned int irq = gsi + NR_IRQS_LEGACY;
- unsigned int i;
-
- for (i = 0; i < NR_IRQS_LEGACY; i++) {
- if (isa_irq_to_gsi[i] == gsi) {
- return i;
- }
- }
-
- /* Provide an identity mapping of gsi == irq
- * except on truly weird platforms that have
- * non isa irqs in the first 16 gsis.
- */
- if (gsi >= NR_IRQS_LEGACY)
- irq = gsi;
- else
- irq = gsi_top + gsi;
-
- return irq;
-}
-
-static u32 irq_to_gsi(int irq)
-{
- unsigned int gsi;
-
- if (irq < NR_IRQS_LEGACY)
- gsi = isa_irq_to_gsi[irq];
- else if (irq < gsi_top)
- gsi = irq;
- else if (irq < (gsi_top + NR_IRQS_LEGACY))
- gsi = irq - gsi_top;
- else
- gsi = 0xffffffff;
-
- return gsi;
-}
-
/*
- * Temporarily use the virtual area starting from FIX_IO_APIC_BASE_END,
- * to map the target physical address. The problem is that set_fixmap()
- * provides a single page, and it is possible that the page is not
- * sufficient.
- * By using this area, we can map up to MAX_IO_APICS pages temporarily,
- * i.e. until the next __va_range() call.
- *
- * Important Safety Note: The fixed I/O APIC page numbers are *subtracted*
- * from the fixed base. That's why we start at FIX_IO_APIC_BASE_END and
- * count idx down while incrementing the phys address.
+ * This is just a simple wrapper around early_memremap(),
+ * with sanity checks for phys == 0 and size == 0.
*/
-char *__init __acpi_map_table(unsigned long phys, unsigned long size)
+void __init __iomem *__acpi_map_table(unsigned long phys, unsigned long size)
{
if (!phys || !size)
return NULL;
- return early_ioremap(phys, size);
+ return early_memremap(phys, size);
}
-void __init __acpi_unmap_table(char *map, unsigned long size)
+
+void __init __acpi_unmap_table(void __iomem *map, unsigned long size)
{
if (!map || !size)
return;
- early_iounmap(map, size);
+ early_memunmap(map, size);
}
#ifdef CONFIG_X86_LOCAL_APIC
@@ -173,61 +132,106 @@ static int __init acpi_parse_madt(struct acpi_table_header *table)
{
struct acpi_table_madt *madt = NULL;
- if (!cpu_has_apic)
+ if (!boot_cpu_has(X86_FEATURE_APIC))
return -EINVAL;
madt = (struct acpi_table_madt *)table;
if (!madt) {
- printk(KERN_WARNING PREFIX "Unable to map MADT\n");
+ pr_warn("Unable to map MADT\n");
return -ENODEV;
}
if (madt->address) {
acpi_lapic_addr = (u64) madt->address;
- printk(KERN_DEBUG PREFIX "Local APIC address 0x%08x\n",
- madt->address);
+ pr_debug("Local APIC address 0x%08x\n", madt->address);
}
+ /* ACPI 6.3 and newer support the online capable bit. */
+ if (acpi_gbl_FADT.header.revision > 6 ||
+ (acpi_gbl_FADT.header.revision == 6 &&
+ acpi_gbl_FADT.minor_revision >= 3))
+ acpi_support_online_capable = true;
+
default_acpi_madt_oem_check(madt->header.oem_id,
madt->header.oem_table_id);
return 0;
}
-static void __cpuinit acpi_register_lapic(int id, u8 enabled)
+/**
+ * acpi_register_lapic - register a local apic and generates a logic cpu number
+ * @id: local apic id to register
+ * @acpiid: ACPI id to register
+ * @enabled: this cpu is enabled or not
+ *
+ * Returns the logic cpu number which maps to the local apic
+ */
+static int acpi_register_lapic(int id, u32 acpiid, u8 enabled)
{
unsigned int ver = 0;
+ int cpu;
- if (id >= (MAX_LOCAL_APIC-1)) {
- printk(KERN_INFO PREFIX "skipped apicid that is too big\n");
- return;
+ if (id >= MAX_LOCAL_APIC) {
+ pr_info("skipped apicid that is too big\n");
+ return -EINVAL;
}
if (!enabled) {
++disabled_cpus;
- return;
+ return -EINVAL;
}
if (boot_cpu_physical_apicid != -1U)
- ver = apic_version[boot_cpu_physical_apicid];
+ ver = boot_cpu_apic_version;
+
+ cpu = generic_processor_info(id, ver);
+ if (cpu >= 0)
+ early_per_cpu(x86_cpu_to_acpiid, cpu) = acpiid;
- generic_processor_info(id, ver);
+ return cpu;
+}
+
+static bool __init acpi_is_processor_usable(u32 lapic_flags)
+{
+ if (lapic_flags & ACPI_MADT_ENABLED)
+ return true;
+
+ if (!acpi_support_online_capable ||
+ (lapic_flags & ACPI_MADT_ONLINE_CAPABLE))
+ return true;
+
+ return false;
}
static int __init
-acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end)
+acpi_parse_x2apic(union acpi_subtable_headers *header, const unsigned long end)
{
struct acpi_madt_local_x2apic *processor = NULL;
+#ifdef CONFIG_X86_X2APIC
+ u32 apic_id;
+ u8 enabled;
+#endif
processor = (struct acpi_madt_local_x2apic *)header;
if (BAD_MADT_ENTRY(processor, end))
return -EINVAL;
- acpi_table_print_madt_entry(header);
+ acpi_table_print_madt_entry(&header->common);
#ifdef CONFIG_X86_X2APIC
+ apic_id = processor->local_apic_id;
+ enabled = processor->lapic_flags & ACPI_MADT_ENABLED;
+
+ /* Ignore invalid ID */
+ if (apic_id == 0xffffffff)
+ return 0;
+
+ /* don't register processors that cannot be onlined */
+ if (!acpi_is_processor_usable(processor->lapic_flags))
+ return 0;
+
/*
* We need to register disabled CPU as well to permit
* counting disabled CPUs. This allows us to size
@@ -235,17 +239,22 @@ acpi_parse_x2apic(struct acpi_subtable_header *header, const unsigned long end)
* to not preallocating memory for all NR_CPUS
* when we use CPU hotplug.
*/
- acpi_register_lapic(processor->local_apic_id, /* APIC ID */
- processor->lapic_flags & ACPI_MADT_ENABLED);
+ if (!apic->apic_id_valid(apic_id)) {
+ if (enabled)
+ pr_warn("x2apic entry ignored\n");
+ return 0;
+ }
+
+ acpi_register_lapic(apic_id, processor->uid, enabled);
#else
- printk(KERN_WARNING PREFIX "x2apic entry ignored\n");
+ pr_warn("x2apic entry ignored\n");
#endif
return 0;
}
static int __init
-acpi_parse_lapic(struct acpi_subtable_header * header, const unsigned long end)
+acpi_parse_lapic(union acpi_subtable_headers * header, const unsigned long end)
{
struct acpi_madt_local_apic *processor = NULL;
@@ -254,7 +263,15 @@ acpi_parse_lapic(struct acpi_subtable_header * header, const unsigned long end)
if (BAD_MADT_ENTRY(processor, end))
return -EINVAL;
- acpi_table_print_madt_entry(header);
+ acpi_table_print_madt_entry(&header->common);
+
+ /* Ignore invalid ID */
+ if (processor->id == 0xff)
+ return 0;
+
+ /* don't register processors that can not be onlined */
+ if (!acpi_is_processor_usable(processor->lapic_flags))
+ return 0;
/*
* We need to register disabled CPU as well to permit
@@ -264,13 +281,14 @@ acpi_parse_lapic(struct acpi_subtable_header * header, const unsigned long end)
* when we use CPU hotplug.
*/
acpi_register_lapic(processor->id, /* APIC ID */
+ processor->processor_id, /* ACPI ID */
processor->lapic_flags & ACPI_MADT_ENABLED);
return 0;
}
static int __init
-acpi_parse_sapic(struct acpi_subtable_header *header, const unsigned long end)
+acpi_parse_sapic(union acpi_subtable_headers *header, const unsigned long end)
{
struct acpi_madt_local_sapic *processor = NULL;
@@ -279,16 +297,17 @@ acpi_parse_sapic(struct acpi_subtable_header *header, const unsigned long end)
if (BAD_MADT_ENTRY(processor, end))
return -EINVAL;
- acpi_table_print_madt_entry(header);
+ acpi_table_print_madt_entry(&header->common);
acpi_register_lapic((processor->id << 8) | processor->eid,/* APIC ID */
+ processor->processor_id, /* ACPI ID */
processor->lapic_flags & ACPI_MADT_ENABLED);
return 0;
}
static int __init
-acpi_parse_lapic_addr_ovr(struct acpi_subtable_header * header,
+acpi_parse_lapic_addr_ovr(union acpi_subtable_headers * header,
const unsigned long end)
{
struct acpi_madt_local_apic_override *lapic_addr_ovr = NULL;
@@ -298,13 +317,15 @@ acpi_parse_lapic_addr_ovr(struct acpi_subtable_header * header,
if (BAD_MADT_ENTRY(lapic_addr_ovr, end))
return -EINVAL;
+ acpi_table_print_madt_entry(&header->common);
+
acpi_lapic_addr = lapic_addr_ovr->address;
return 0;
}
static int __init
-acpi_parse_x2apic_nmi(struct acpi_subtable_header *header,
+acpi_parse_x2apic_nmi(union acpi_subtable_headers *header,
const unsigned long end)
{
struct acpi_madt_local_x2apic_nmi *x2apic_nmi = NULL;
@@ -314,16 +335,16 @@ acpi_parse_x2apic_nmi(struct acpi_subtable_header *header,
if (BAD_MADT_ENTRY(x2apic_nmi, end))
return -EINVAL;
- acpi_table_print_madt_entry(header);
+ acpi_table_print_madt_entry(&header->common);
if (x2apic_nmi->lint != 1)
- printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n");
+ pr_warn("NMI not connected to LINT 1!\n");
return 0;
}
static int __init
-acpi_parse_lapic_nmi(struct acpi_subtable_header * header, const unsigned long end)
+acpi_parse_lapic_nmi(union acpi_subtable_headers * header, const unsigned long end)
{
struct acpi_madt_local_apic_nmi *lapic_nmi = NULL;
@@ -332,32 +353,191 @@ acpi_parse_lapic_nmi(struct acpi_subtable_header * header, const unsigned long e
if (BAD_MADT_ENTRY(lapic_nmi, end))
return -EINVAL;
- acpi_table_print_madt_entry(header);
+ acpi_table_print_madt_entry(&header->common);
if (lapic_nmi->lint != 1)
- printk(KERN_WARNING PREFIX "NMI not connected to LINT 1!\n");
+ pr_warn("NMI not connected to LINT 1!\n");
return 0;
}
-#endif /*CONFIG_X86_LOCAL_APIC */
+#ifdef CONFIG_X86_64
+static int acpi_wakeup_cpu(int apicid, unsigned long start_ip)
+{
+ /*
+ * Remap mailbox memory only for the first call to acpi_wakeup_cpu().
+ *
+ * Wakeup of secondary CPUs is fully serialized in the core code.
+ * No need to protect acpi_mp_wake_mailbox from concurrent accesses.
+ */
+ if (!acpi_mp_wake_mailbox) {
+ acpi_mp_wake_mailbox = memremap(acpi_mp_wake_mailbox_paddr,
+ sizeof(*acpi_mp_wake_mailbox),
+ MEMREMAP_WB);
+ }
+
+ /*
+ * Mailbox memory is shared between the firmware and OS. Firmware will
+ * listen on mailbox command address, and once it receives the wakeup
+ * command, the CPU associated with the given apicid will be booted.
+ *
+ * The value of 'apic_id' and 'wakeup_vector' must be visible to the
+ * firmware before the wakeup command is visible. smp_store_release()
+ * ensures ordering and visibility.
+ */
+ acpi_mp_wake_mailbox->apic_id = apicid;
+ acpi_mp_wake_mailbox->wakeup_vector = start_ip;
+ smp_store_release(&acpi_mp_wake_mailbox->command,
+ ACPI_MP_WAKE_COMMAND_WAKEUP);
+
+ /*
+ * Wait for the CPU to wake up.
+ *
+ * The CPU being woken up is essentially in a spin loop waiting to be
+ * woken up. It should not take long for it wake up and acknowledge by
+ * zeroing out ->command.
+ *
+ * ACPI specification doesn't provide any guidance on how long kernel
+ * has to wait for a wake up acknowledgement. It also doesn't provide
+ * a way to cancel a wake up request if it takes too long.
+ *
+ * In TDX environment, the VMM has control over how long it takes to
+ * wake up secondary. It can postpone scheduling secondary vCPU
+ * indefinitely. Giving up on wake up request and reporting error opens
+ * possible attack vector for VMM: it can wake up a secondary CPU when
+ * kernel doesn't expect it. Wait until positive result of the wake up
+ * request.
+ */
+ while (READ_ONCE(acpi_mp_wake_mailbox->command))
+ cpu_relax();
+
+ return 0;
+}
+#endif /* CONFIG_X86_64 */
+#endif /* CONFIG_X86_LOCAL_APIC */
#ifdef CONFIG_X86_IO_APIC
+#define MP_ISA_BUS 0
+
+static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity,
+ u8 trigger, u32 gsi);
+
+static void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
+ u32 gsi)
+{
+ /*
+ * Check bus_irq boundary.
+ */
+ if (bus_irq >= NR_IRQS_LEGACY) {
+ pr_warn("Invalid bus_irq %u for legacy override\n", bus_irq);
+ return;
+ }
+
+ /*
+ * TBD: This check is for faulty timer entries, where the override
+ * erroneously sets the trigger to level, resulting in a HUGE
+ * increase of timer interrupts!
+ */
+ if ((bus_irq == 0) && (trigger == 3))
+ trigger = 1;
+
+ if (mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi) < 0)
+ return;
+ /*
+ * Reset default identity mapping if gsi is also an legacy IRQ,
+ * otherwise there will be more than one entry with the same GSI
+ * and acpi_isa_irq_to_gsi() may give wrong result.
+ */
+ if (gsi < nr_legacy_irqs() && isa_irq_to_gsi[gsi] == gsi)
+ isa_irq_to_gsi[gsi] = INVALID_ACPI_IRQ;
+ isa_irq_to_gsi[bus_irq] = gsi;
+}
+
+static void mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger,
+ int polarity)
+{
+#ifdef CONFIG_X86_MPPARSE
+ struct mpc_intsrc mp_irq;
+ struct pci_dev *pdev;
+ unsigned char number;
+ unsigned int devfn;
+ int ioapic;
+ u8 pin;
+
+ if (!acpi_ioapic)
+ return;
+ if (!dev || !dev_is_pci(dev))
+ return;
+
+ pdev = to_pci_dev(dev);
+ number = pdev->bus->number;
+ devfn = pdev->devfn;
+ pin = pdev->pin;
+ /* print the entry should happen on mptable identically */
+ mp_irq.type = MP_INTSRC;
+ mp_irq.irqtype = mp_INT;
+ mp_irq.irqflag = (trigger == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) |
+ (polarity == ACPI_ACTIVE_HIGH ? 1 : 3);
+ mp_irq.srcbus = number;
+ mp_irq.srcbusirq = (((devfn >> 3) & 0x1f) << 2) | ((pin - 1) & 3);
+ ioapic = mp_find_ioapic(gsi);
+ mp_irq.dstapic = mpc_ioapic_id(ioapic);
+ mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi);
+
+ mp_save_irq(&mp_irq);
+#endif
+}
+
+static int __init mp_register_ioapic_irq(u8 bus_irq, u8 polarity,
+ u8 trigger, u32 gsi)
+{
+ struct mpc_intsrc mp_irq;
+ int ioapic, pin;
+
+ /* Convert 'gsi' to 'ioapic.pin'(INTIN#) */
+ ioapic = mp_find_ioapic(gsi);
+ if (ioapic < 0) {
+ pr_warn("Failed to find ioapic for gsi : %u\n", gsi);
+ return ioapic;
+ }
+
+ pin = mp_find_ioapic_pin(ioapic, gsi);
+
+ mp_irq.type = MP_INTSRC;
+ mp_irq.irqtype = mp_INT;
+ mp_irq.irqflag = (trigger << 2) | polarity;
+ mp_irq.srcbus = MP_ISA_BUS;
+ mp_irq.srcbusirq = bus_irq;
+ mp_irq.dstapic = mpc_ioapic_id(ioapic);
+ mp_irq.dstirq = pin;
+
+ mp_save_irq(&mp_irq);
+
+ return 0;
+}
static int __init
-acpi_parse_ioapic(struct acpi_subtable_header * header, const unsigned long end)
+acpi_parse_ioapic(union acpi_subtable_headers * header, const unsigned long end)
{
struct acpi_madt_io_apic *ioapic = NULL;
+ struct ioapic_domain_cfg cfg = {
+ .type = IOAPIC_DOMAIN_DYNAMIC,
+ .ops = &mp_ioapic_irqdomain_ops,
+ };
ioapic = (struct acpi_madt_io_apic *)header;
if (BAD_MADT_ENTRY(ioapic, end))
return -EINVAL;
- acpi_table_print_madt_entry(header);
+ acpi_table_print_madt_entry(&header->common);
- mp_register_ioapic(ioapic->id,
- ioapic->address, ioapic->global_irq_base);
+ /* Statically assign IRQ numbers for IOAPICs hosting legacy IRQs */
+ if (ioapic->global_irq_base < nr_legacy_irqs())
+ cfg.type = IOAPIC_DOMAIN_LEGACY;
+
+ mp_register_ioapic(ioapic->id, ioapic->address, ioapic->global_irq_base,
+ &cfg);
return 0;
}
@@ -380,12 +560,12 @@ static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger,
if (acpi_sci_flags & ACPI_MADT_POLARITY_MASK)
polarity = acpi_sci_flags & ACPI_MADT_POLARITY_MASK;
- /*
- * mp_config_acpi_legacy_irqs() already setup IRQs < 16
- * If GSI is < 16, this will update its flags,
- * else it will create a new mp_irqs[] entry.
- */
- mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
+ if (bus_irq < NR_IRQS_LEGACY)
+ mp_override_legacy_irq(bus_irq, polarity, trigger, gsi);
+ else
+ mp_register_ioapic_irq(bus_irq, polarity, trigger, gsi);
+
+ acpi_penalize_sci_irq(bus_irq, trigger, polarity);
/*
* stash over-ride to indicate we've been here
@@ -396,7 +576,7 @@ static void __init acpi_sci_ioapic_setup(u8 bus_irq, u16 polarity, u16 trigger,
}
static int __init
-acpi_parse_int_src_ovr(struct acpi_subtable_header * header,
+acpi_parse_int_src_ovr(union acpi_subtable_headers * header,
const unsigned long end)
{
struct acpi_madt_interrupt_override *intsrc = NULL;
@@ -406,7 +586,7 @@ acpi_parse_int_src_ovr(struct acpi_subtable_header * header,
if (BAD_MADT_ENTRY(intsrc, end))
return -EINVAL;
- acpi_table_print_madt_entry(header);
+ acpi_table_print_madt_entry(&header->common);
if (intsrc->source_irq == acpi_gbl_FADT.sci_interrupt) {
acpi_sci_ioapic_setup(intsrc->source_irq,
@@ -416,14 +596,16 @@ acpi_parse_int_src_ovr(struct acpi_subtable_header * header,
return 0;
}
- if (intsrc->source_irq == 0 && intsrc->global_irq == 2) {
+ if (intsrc->source_irq == 0) {
if (acpi_skip_timer_override) {
- printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n");
+ pr_warn("BIOS IRQ0 override ignored.\n");
return 0;
}
- if (acpi_fix_pin2_polarity && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) {
+
+ if ((intsrc->global_irq == 2) && acpi_fix_pin2_polarity
+ && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) {
intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK;
- printk(PREFIX "BIOS IRQ0 pin2 override: forcing polarity to high active.\n");
+ pr_warn("BIOS IRQ0 pin2 override: forcing polarity to high active.\n");
}
}
@@ -436,7 +618,7 @@ acpi_parse_int_src_ovr(struct acpi_subtable_header * header,
}
static int __init
-acpi_parse_nmi_src(struct acpi_subtable_header * header, const unsigned long end)
+acpi_parse_nmi_src(union acpi_subtable_headers * header, const unsigned long end)
{
struct acpi_madt_nmi_source *nmi_src = NULL;
@@ -445,7 +627,7 @@ acpi_parse_nmi_src(struct acpi_subtable_header * header, const unsigned long end
if (BAD_MADT_ENTRY(nmi_src, end))
return -EINVAL;
- acpi_table_print_madt_entry(header);
+ acpi_table_print_madt_entry(&header->common);
/* TBD: Support nimsrc entries? */
@@ -462,10 +644,10 @@ acpi_parse_nmi_src(struct acpi_subtable_header * header, const unsigned long end
* If a PIC-mode SCI is not recognized or gives spurious IRQ7's
* it may require Edge Trigger -- use "acpi_sci=edge"
*
- * Port 0x4d0-4d1 are ECLR1 and ECLR2, the Edge/Level Control Registers
+ * Port 0x4d0-4d1 are ELCR1 and ELCR2, the Edge/Level Control Registers
* for the 8259 PIC. bit[n] = 1 means irq[n] is Level, otherwise Edge.
- * ECLR1 is IRQs 0-7 (IRQ 0, 1, 2 must be 0)
- * ECLR2 is IRQs 8-15 (IRQ 8, 13 must be 0)
+ * ELCR1 is IRQs 0-7 (IRQ 0, 1, 2 must be 0)
+ * ELCR2 is IRQs 8-15 (IRQ 8, 13 must be 0)
*/
void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
@@ -474,7 +656,7 @@ void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
unsigned int old, new;
/* Real old ELCR mask */
- old = inb(0x4d0) | (inb(0x4d1) << 8);
+ old = inb(PIC_ELCR1) | (inb(PIC_ELCR2) << 8);
/*
* If we use ACPI to set PCI IRQs, then we should clear ELCR
@@ -499,30 +681,44 @@ void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger)
if (old == new)
return;
- printk(PREFIX "setting ELCR to %04x (from %04x)\n", new, old);
- outb(new, 0x4d0);
- outb(new >> 8, 0x4d1);
+ pr_warn("setting ELCR to %04x (from %04x)\n", new, old);
+ outb(new, PIC_ELCR1);
+ outb(new >> 8, PIC_ELCR2);
}
-int acpi_gsi_to_irq(u32 gsi, unsigned int *irq)
+int acpi_gsi_to_irq(u32 gsi, unsigned int *irqp)
{
- *irq = gsi_to_irq(gsi);
+ int rc, irq, trigger, polarity;
-#ifdef CONFIG_X86_IO_APIC
- if (acpi_irq_model == ACPI_IRQ_MODEL_IOAPIC)
- setup_IO_APIC_irq_extra(gsi);
-#endif
+ if (acpi_irq_model == ACPI_IRQ_MODEL_PIC) {
+ *irqp = gsi;
+ return 0;
+ }
+ rc = acpi_get_override_irq(gsi, &trigger, &polarity);
+ if (rc)
+ return rc;
+
+ trigger = trigger ? ACPI_LEVEL_SENSITIVE : ACPI_EDGE_SENSITIVE;
+ polarity = polarity ? ACPI_ACTIVE_LOW : ACPI_ACTIVE_HIGH;
+ irq = acpi_register_gsi(NULL, gsi, trigger, polarity);
+ if (irq < 0)
+ return irq;
+
+ *irqp = irq;
return 0;
}
EXPORT_SYMBOL_GPL(acpi_gsi_to_irq);
int acpi_isa_irq_to_gsi(unsigned isa_irq, u32 *gsi)
{
- if (isa_irq >= 16)
- return -1;
- *gsi = irq_to_gsi(isa_irq);
- return 0;
+ if (isa_irq < nr_legacy_irqs() &&
+ isa_irq_to_gsi[isa_irq] != INVALID_ACPI_IRQ) {
+ *gsi = isa_irq_to_gsi[isa_irq];
+ return 0;
+ }
+
+ return -1;
}
static int acpi_register_gsi_pic(struct device *dev, u32 gsi,
@@ -533,24 +729,60 @@ static int acpi_register_gsi_pic(struct device *dev, u32 gsi,
* Make sure all (legacy) PCI IRQs are set as level-triggered.
*/
if (trigger == ACPI_LEVEL_SENSITIVE)
- eisa_set_level_irq(gsi);
+ elcr_set_level_irq(gsi);
#endif
return gsi;
}
+#ifdef CONFIG_X86_LOCAL_APIC
static int acpi_register_gsi_ioapic(struct device *dev, u32 gsi,
int trigger, int polarity)
{
+ int irq = gsi;
#ifdef CONFIG_X86_IO_APIC
- gsi = mp_register_gsi(dev, gsi, trigger, polarity);
+ int node;
+ struct irq_alloc_info info;
+
+ node = dev ? dev_to_node(dev) : NUMA_NO_NODE;
+ trigger = trigger == ACPI_EDGE_SENSITIVE ? 0 : 1;
+ polarity = polarity == ACPI_ACTIVE_HIGH ? 0 : 1;
+ ioapic_set_alloc_attr(&info, node, trigger, polarity);
+
+ mutex_lock(&acpi_ioapic_lock);
+ irq = mp_map_gsi_to_irq(gsi, IOAPIC_MAP_ALLOC, &info);
+ /* Don't set up the ACPI SCI because it's already set up */
+ if (irq >= 0 && enable_update_mptable && gsi != acpi_gbl_FADT.sci_interrupt)
+ mp_config_acpi_gsi(dev, gsi, trigger, polarity);
+ mutex_unlock(&acpi_ioapic_lock);
#endif
- return gsi;
+ return irq;
}
+static void acpi_unregister_gsi_ioapic(u32 gsi)
+{
+#ifdef CONFIG_X86_IO_APIC
+ int irq;
+
+ mutex_lock(&acpi_ioapic_lock);
+ irq = mp_map_gsi_to_irq(gsi, 0, NULL);
+ if (irq > 0)
+ mp_unmap_irq(irq);
+ mutex_unlock(&acpi_ioapic_lock);
+#endif
+}
+#endif
+
int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
int trigger, int polarity) = acpi_register_gsi_pic;
+void (*__acpi_unregister_gsi)(u32 gsi) = NULL;
+
+#ifdef CONFIG_ACPI_SLEEP
+int (*acpi_suspend_lowlevel)(void) = x86_acpi_suspend_lowlevel;
+#else
+int (*acpi_suspend_lowlevel)(void);
+#endif
/*
* success: return IRQ number (>=0)
@@ -558,28 +790,26 @@ int (*__acpi_register_gsi)(struct device *dev, u32 gsi,
*/
int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity)
{
- unsigned int irq;
- unsigned int plat_gsi = gsi;
-
- plat_gsi = (*__acpi_register_gsi)(dev, gsi, trigger, polarity);
- irq = gsi_to_irq(plat_gsi);
-
- return irq;
+ return __acpi_register_gsi(dev, gsi, trigger, polarity);
}
+EXPORT_SYMBOL_GPL(acpi_register_gsi);
-void __init acpi_set_irq_model_pic(void)
+void acpi_unregister_gsi(u32 gsi)
{
- acpi_irq_model = ACPI_IRQ_MODEL_PIC;
- __acpi_register_gsi = acpi_register_gsi_pic;
- acpi_ioapic = 0;
+ if (__acpi_unregister_gsi)
+ __acpi_unregister_gsi(gsi);
}
+EXPORT_SYMBOL_GPL(acpi_unregister_gsi);
-void __init acpi_set_irq_model_ioapic(void)
+#ifdef CONFIG_X86_LOCAL_APIC
+static void __init acpi_set_irq_model_ioapic(void)
{
acpi_irq_model = ACPI_IRQ_MODEL_IOAPIC;
__acpi_register_gsi = acpi_register_gsi_ioapic;
+ __acpi_unregister_gsi = acpi_unregister_gsi_ioapic;
acpi_ioapic = 1;
}
+#endif
/*
* ACPI based hotplug support for CPU
@@ -587,136 +817,127 @@ void __init acpi_set_irq_model_ioapic(void)
#ifdef CONFIG_ACPI_HOTPLUG_CPU
#include <acpi/processor.h>
-static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
+static int acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
{
#ifdef CONFIG_ACPI_NUMA
int nid;
nid = acpi_get_node(handle);
- if (nid == -1 || !node_online(nid))
- return;
- set_apicid_to_node(physid, nid);
- numa_set_node(cpu, nid);
+ if (nid != NUMA_NO_NODE) {
+ set_apicid_to_node(physid, nid);
+ numa_set_node(cpu, nid);
+ }
#endif
+ return 0;
}
-static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
+int acpi_map_cpu(acpi_handle handle, phys_cpuid_t physid, u32 acpi_id,
+ int *pcpu)
{
- struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
- union acpi_object *obj;
- struct acpi_madt_local_apic *lapic;
- cpumask_var_t tmp_map, new_map;
- u8 physid;
int cpu;
- int retval = -ENOMEM;
-
- if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
- return -EINVAL;
-
- if (!buffer.length || !buffer.pointer)
- return -EINVAL;
- obj = buffer.pointer;
- if (obj->type != ACPI_TYPE_BUFFER ||
- obj->buffer.length < sizeof(*lapic)) {
- kfree(buffer.pointer);
- return -EINVAL;
- }
-
- lapic = (struct acpi_madt_local_apic *)obj->buffer.pointer;
-
- if (lapic->header.type != ACPI_MADT_TYPE_LOCAL_APIC ||
- !(lapic->lapic_flags & ACPI_MADT_ENABLED)) {
- kfree(buffer.pointer);
- return -EINVAL;
- }
-
- physid = lapic->id;
-
- kfree(buffer.pointer);
- buffer.length = ACPI_ALLOCATE_BUFFER;
- buffer.pointer = NULL;
-
- if (!alloc_cpumask_var(&tmp_map, GFP_KERNEL))
- goto out;
-
- if (!alloc_cpumask_var(&new_map, GFP_KERNEL))
- goto free_tmp_map;
-
- cpumask_copy(tmp_map, cpu_present_mask);
- acpi_register_lapic(physid, lapic->lapic_flags & ACPI_MADT_ENABLED);
-
- /*
- * If mp_register_lapic successfully generates a new logical cpu
- * number, then the following will get us exactly what was mapped
- */
- cpumask_andnot(new_map, cpu_present_mask, tmp_map);
- if (cpumask_empty(new_map)) {
- printk ("Unable to map lapic to logical cpu number\n");
- retval = -EINVAL;
- goto free_new_map;
+ cpu = acpi_register_lapic(physid, acpi_id, ACPI_MADT_ENABLED);
+ if (cpu < 0) {
+ pr_info("Unable to map lapic to logical cpu number\n");
+ return cpu;
}
acpi_processor_set_pdc(handle);
-
- cpu = cpumask_first(new_map);
acpi_map_cpu2node(handle, cpu, physid);
*pcpu = cpu;
- retval = 0;
-
-free_new_map:
- free_cpumask_var(new_map);
-free_tmp_map:
- free_cpumask_var(tmp_map);
-out:
- return retval;
+ return 0;
}
+EXPORT_SYMBOL(acpi_map_cpu);
-/* wrapper to silence section mismatch warning */
-int __ref acpi_map_lsapic(acpi_handle handle, int *pcpu)
+int acpi_unmap_cpu(int cpu)
{
- return _acpi_map_lsapic(handle, pcpu);
-}
-EXPORT_SYMBOL(acpi_map_lsapic);
+#ifdef CONFIG_ACPI_NUMA
+ set_apicid_to_node(per_cpu(x86_cpu_to_apicid, cpu), NUMA_NO_NODE);
+#endif
-int acpi_unmap_lsapic(int cpu)
-{
per_cpu(x86_cpu_to_apicid, cpu) = -1;
set_cpu_present(cpu, false);
num_processors--;
return (0);
}
-
-EXPORT_SYMBOL(acpi_unmap_lsapic);
+EXPORT_SYMBOL(acpi_unmap_cpu);
#endif /* CONFIG_ACPI_HOTPLUG_CPU */
int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base)
{
- /* TBD */
- return -EINVAL;
-}
+ int ret = -ENOSYS;
+#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
+ int ioapic_id;
+ u64 addr;
+ struct ioapic_domain_cfg cfg = {
+ .type = IOAPIC_DOMAIN_DYNAMIC,
+ .ops = &mp_ioapic_irqdomain_ops,
+ };
+
+ ioapic_id = acpi_get_ioapic_id(handle, gsi_base, &addr);
+ if (ioapic_id < 0) {
+ unsigned long long uid;
+ acpi_status status;
+
+ status = acpi_evaluate_integer(handle, METHOD_NAME__UID,
+ NULL, &uid);
+ if (ACPI_FAILURE(status)) {
+ acpi_handle_warn(handle, "failed to get IOAPIC ID.\n");
+ return -EINVAL;
+ }
+ ioapic_id = (int)uid;
+ }
+
+ mutex_lock(&acpi_ioapic_lock);
+ ret = mp_register_ioapic(ioapic_id, phys_addr, gsi_base, &cfg);
+ mutex_unlock(&acpi_ioapic_lock);
+#endif
+ return ret;
+}
EXPORT_SYMBOL(acpi_register_ioapic);
int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base)
{
- /* TBD */
- return -EINVAL;
-}
+ int ret = -ENOSYS;
+
+#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
+ mutex_lock(&acpi_ioapic_lock);
+ ret = mp_unregister_ioapic(gsi_base);
+ mutex_unlock(&acpi_ioapic_lock);
+#endif
+ return ret;
+}
EXPORT_SYMBOL(acpi_unregister_ioapic);
-static int __init acpi_parse_sbf(struct acpi_table_header *table)
+/**
+ * acpi_ioapic_registered - Check whether IOAPIC associated with @gsi_base
+ * has been registered
+ * @handle: ACPI handle of the IOAPIC device
+ * @gsi_base: GSI base associated with the IOAPIC
+ *
+ * Assume caller holds some type of lock to serialize acpi_ioapic_registered()
+ * with acpi_register_ioapic()/acpi_unregister_ioapic().
+ */
+int acpi_ioapic_registered(acpi_handle handle, u32 gsi_base)
{
- struct acpi_table_boot *sb;
+ int ret = 0;
- sb = (struct acpi_table_boot *)table;
- if (!sb) {
- printk(KERN_WARNING PREFIX "Unable to map SBF\n");
- return -ENODEV;
- }
+#ifdef CONFIG_ACPI_HOTPLUG_IOAPIC
+ mutex_lock(&acpi_ioapic_lock);
+ ret = mp_ioapic_registered(gsi_base);
+ mutex_unlock(&acpi_ioapic_lock);
+#endif
+
+ return ret;
+}
+
+static int __init acpi_parse_sbf(struct acpi_table_header *table)
+{
+ struct acpi_table_boot *sb = (struct acpi_table_boot *)table;
sbf_port = sb->cmos_index; /* Save CMOS port */
@@ -726,21 +947,14 @@ static int __init acpi_parse_sbf(struct acpi_table_header *table)
#ifdef CONFIG_HPET_TIMER
#include <asm/hpet.h>
-static struct __initdata resource *hpet_res;
+static struct resource *hpet_res __initdata;
static int __init acpi_parse_hpet(struct acpi_table_header *table)
{
- struct acpi_table_hpet *hpet_tbl;
-
- hpet_tbl = (struct acpi_table_hpet *)table;
- if (!hpet_tbl) {
- printk(KERN_WARNING PREFIX "Unable to map HPET\n");
- return -ENODEV;
- }
+ struct acpi_table_hpet *hpet_tbl = (struct acpi_table_hpet *)table;
if (hpet_tbl->address.space_id != ACPI_SPACE_MEM) {
- printk(KERN_WARNING PREFIX "HPET timers must be located in "
- "memory.\n");
+ pr_warn("HPET timers must be located in memory.\n");
return -1;
}
@@ -752,9 +966,7 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
* want to allocate a resource there.
*/
if (!hpet_address) {
- printk(KERN_WARNING PREFIX
- "HPET id: %#x base: %#lx is invalid\n",
- hpet_tbl->id, hpet_address);
+ pr_warn("HPET id: %#x base: %#lx is invalid\n", hpet_tbl->id, hpet_address);
return 0;
}
#ifdef CONFIG_X86_64
@@ -765,28 +977,28 @@ static int __init acpi_parse_hpet(struct acpi_table_header *table)
*/
if (hpet_address == 0xfed0000000000000UL) {
if (!hpet_force_user) {
- printk(KERN_WARNING PREFIX "HPET id: %#x "
- "base: 0xfed0000000000000 is bogus\n "
- "try hpet=force on the kernel command line to "
- "fix it up to 0xfed00000.\n", hpet_tbl->id);
+ pr_warn("HPET id: %#x base: 0xfed0000000000000 is bogus, try hpet=force on the kernel command line to fix it up to 0xfed00000.\n",
+ hpet_tbl->id);
hpet_address = 0;
return 0;
}
- printk(KERN_WARNING PREFIX
- "HPET id: %#x base: 0xfed0000000000000 fixed up "
- "to 0xfed00000.\n", hpet_tbl->id);
+ pr_warn("HPET id: %#x base: 0xfed0000000000000 fixed up to 0xfed00000.\n",
+ hpet_tbl->id);
hpet_address >>= 32;
}
#endif
- printk(KERN_INFO PREFIX "HPET id: %#x base: %#lx\n",
- hpet_tbl->id, hpet_address);
+ pr_info("HPET id: %#x base: %#lx\n", hpet_tbl->id, hpet_address);
/*
* Allocate and initialize the HPET firmware resource for adding into
* the resource tree during the lateinit timeframe.
*/
#define HPET_RESOURCE_NAME_SIZE 9
- hpet_res = alloc_bootmem(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE);
+ hpet_res = memblock_alloc(sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE,
+ SMP_CACHE_BYTES);
+ if (!hpet_res)
+ panic("%s: Failed to allocate %zu bytes\n", __func__,
+ sizeof(*hpet_res) + HPET_RESOURCE_NAME_SIZE);
hpet_res->name = (void *)&hpet_res[1];
hpet_res->flags = IORESOURCE_MEM;
@@ -819,6 +1031,27 @@ late_initcall(hpet_insert_resource);
static int __init acpi_parse_fadt(struct acpi_table_header *table)
{
+ if (!(acpi_gbl_FADT.boot_flags & ACPI_FADT_LEGACY_DEVICES)) {
+ pr_debug("no legacy devices present\n");
+ x86_platform.legacy.devices.pnpbios = 0;
+ }
+
+ if (acpi_gbl_FADT.header.revision >= FADT2_REVISION_ID &&
+ !(acpi_gbl_FADT.boot_flags & ACPI_FADT_8042) &&
+ x86_platform.legacy.i8042 != X86_LEGACY_I8042_PLATFORM_ABSENT) {
+ pr_debug("i8042 controller is absent\n");
+ x86_platform.legacy.i8042 = X86_LEGACY_I8042_FIRMWARE_ABSENT;
+ }
+
+ if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) {
+ pr_debug("not registering RTC platform device\n");
+ x86_platform.legacy.rtc = 0;
+ }
+
+ if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_VGA) {
+ pr_debug("probing for VGA not safe\n");
+ x86_platform.legacy.no_vga = 1;
+ }
#ifdef CONFIG_X86_PM_TIMER
/* detect the location of the ACPI PM Timer */
@@ -841,8 +1074,7 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table)
pmtmr_ioport = acpi_gbl_FADT.pm_timer_block;
}
if (pmtmr_ioport)
- printk(KERN_INFO PREFIX "PM-Timer IO Port: %#x\n",
- pmtmr_ioport);
+ pr_info("PM-Timer IO Port: %#x\n", pmtmr_ioport);
#endif
return 0;
}
@@ -857,20 +1089,18 @@ static int __init early_acpi_parse_madt_lapic_addr_ovr(void)
{
int count;
- if (!cpu_has_apic)
+ if (!boot_cpu_has(X86_FEATURE_APIC))
return -ENODEV;
/*
* Note that the LAPIC address is obtained from the MADT (32-bit value)
- * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value).
+ * and (optionally) overridden by a LAPIC_ADDR_OVR entry (64-bit value).
*/
- count =
- acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE,
- acpi_parse_lapic_addr_ovr, 0);
+ count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE,
+ acpi_parse_lapic_addr_ovr, 0);
if (count < 0) {
- printk(KERN_ERR PREFIX
- "Error parsing LAPIC address override entry\n");
+ pr_err("Error parsing LAPIC address override entry\n");
return count;
}
@@ -883,128 +1113,98 @@ static int __init acpi_parse_madt_lapic_entries(void)
{
int count;
int x2count = 0;
+ int ret;
+ struct acpi_subtable_proc madt_proc[2];
- if (!cpu_has_apic)
+ if (!boot_cpu_has(X86_FEATURE_APIC))
return -ENODEV;
- /*
- * Note that the LAPIC address is obtained from the MADT (32-bit value)
- * and (optionally) overriden by a LAPIC_ADDR_OVR entry (64-bit value).
- */
-
- count =
- acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE,
- acpi_parse_lapic_addr_ovr, 0);
- if (count < 0) {
- printk(KERN_ERR PREFIX
- "Error parsing LAPIC address override entry\n");
- return count;
- }
-
- register_lapic_address(acpi_lapic_addr);
-
count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC,
acpi_parse_sapic, MAX_LOCAL_APIC);
if (!count) {
- x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC,
- acpi_parse_x2apic, MAX_LOCAL_APIC);
- count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC,
- acpi_parse_lapic, MAX_LOCAL_APIC);
+ memset(madt_proc, 0, sizeof(madt_proc));
+ madt_proc[0].id = ACPI_MADT_TYPE_LOCAL_APIC;
+ madt_proc[0].handler = acpi_parse_lapic;
+ madt_proc[1].id = ACPI_MADT_TYPE_LOCAL_X2APIC;
+ madt_proc[1].handler = acpi_parse_x2apic;
+ ret = acpi_table_parse_entries_array(ACPI_SIG_MADT,
+ sizeof(struct acpi_table_madt),
+ madt_proc, ARRAY_SIZE(madt_proc), MAX_LOCAL_APIC);
+ if (ret < 0) {
+ pr_err("Error parsing LAPIC/X2APIC entries\n");
+ return ret;
+ }
+
+ count = madt_proc[0].count;
+ x2count = madt_proc[1].count;
}
if (!count && !x2count) {
- printk(KERN_ERR PREFIX "No LAPIC entries present\n");
+ pr_err("No LAPIC entries present\n");
/* TBD: Cleanup to allow fallback to MPS */
return -ENODEV;
} else if (count < 0 || x2count < 0) {
- printk(KERN_ERR PREFIX "Error parsing LAPIC entry\n");
+ pr_err("Error parsing LAPIC entry\n");
/* TBD: Cleanup to allow fallback to MPS */
return count;
}
- x2count =
- acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC_NMI,
- acpi_parse_x2apic_nmi, 0);
- count =
- acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, acpi_parse_lapic_nmi, 0);
+ x2count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_X2APIC_NMI,
+ acpi_parse_x2apic_nmi, 0);
+ count = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI,
+ acpi_parse_lapic_nmi, 0);
if (count < 0 || x2count < 0) {
- printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n");
+ pr_err("Error parsing LAPIC NMI entry\n");
/* TBD: Cleanup to allow fallback to MPS */
return count;
}
return 0;
}
-#endif /* CONFIG_X86_LOCAL_APIC */
-#ifdef CONFIG_X86_IO_APIC
-#define MP_ISA_BUS 0
-
-#ifdef CONFIG_X86_ES7000
-extern int es7000_plat;
-#endif
-
-void __init mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger, u32 gsi)
+#ifdef CONFIG_X86_64
+static int __init acpi_parse_mp_wake(union acpi_subtable_headers *header,
+ const unsigned long end)
{
- int ioapic;
- int pin;
- struct mpc_intsrc mp_irq;
+ struct acpi_madt_multiproc_wakeup *mp_wake;
- /*
- * Convert 'gsi' to 'ioapic.pin'.
- */
- ioapic = mp_find_ioapic(gsi);
- if (ioapic < 0)
- return;
- pin = mp_find_ioapic_pin(ioapic, gsi);
+ if (!IS_ENABLED(CONFIG_SMP))
+ return -ENODEV;
- /*
- * TBD: This check is for faulty timer entries, where the override
- * erroneously sets the trigger to level, resulting in a HUGE
- * increase of timer interrupts!
- */
- if ((bus_irq == 0) && (trigger == 3))
- trigger = 1;
+ mp_wake = (struct acpi_madt_multiproc_wakeup *)header;
+ if (BAD_MADT_ENTRY(mp_wake, end))
+ return -EINVAL;
- mp_irq.type = MP_INTSRC;
- mp_irq.irqtype = mp_INT;
- mp_irq.irqflag = (trigger << 2) | polarity;
- mp_irq.srcbus = MP_ISA_BUS;
- mp_irq.srcbusirq = bus_irq; /* IRQ */
- mp_irq.dstapic = mp_ioapics[ioapic].apicid; /* APIC ID */
- mp_irq.dstirq = pin; /* INTIN# */
+ acpi_table_print_madt_entry(&header->common);
- mp_save_irq(&mp_irq);
+ acpi_mp_wake_mailbox_paddr = mp_wake->base_address;
- isa_irq_to_gsi[bus_irq] = gsi;
+ acpi_wake_cpu_handler_update(acpi_wakeup_cpu);
+
+ return 0;
}
+#endif /* CONFIG_X86_64 */
+#endif /* CONFIG_X86_LOCAL_APIC */
-void __init mp_config_acpi_legacy_irqs(void)
+#ifdef CONFIG_X86_IO_APIC
+static void __init mp_config_acpi_legacy_irqs(void)
{
int i;
struct mpc_intsrc mp_irq;
-#if defined (CONFIG_MCA) || defined (CONFIG_EISA)
+#ifdef CONFIG_EISA
/*
* Fabricate the legacy ISA bus (bus #31).
*/
mp_bus_id_to_type[MP_ISA_BUS] = MP_BUS_ISA;
#endif
set_bit(MP_ISA_BUS, mp_bus_not_pci);
- pr_debug("Bus #%d is ISA\n", MP_ISA_BUS);
-
-#ifdef CONFIG_X86_ES7000
- /*
- * Older generations of ES7000 have no legacy identity mappings
- */
- if (es7000_plat == 1)
- return;
-#endif
+ pr_debug("Bus #%d is ISA (nIRQs: %d)\n", MP_ISA_BUS, nr_legacy_irqs());
/*
* Use the default configuration for the IRQs 0-15. Unless
* overridden by (MADT) interrupt source override entries.
*/
- for (i = 0; i < 16; i++) {
+ for (i = 0; i < nr_legacy_irqs(); i++) {
int ioapic, pin;
unsigned int dstapic;
int idx;
@@ -1021,7 +1221,7 @@ void __init mp_config_acpi_legacy_irqs(void)
if (ioapic < 0)
continue;
pin = mp_find_ioapic_pin(ioapic, gsi);
- dstapic = mp_ioapics[ioapic].apicid;
+ dstapic = mpc_ioapic_id(ioapic);
for (idx = 0; idx < mp_irq_entries; idx++) {
struct mpc_intsrc *irq = mp_irqs + idx;
@@ -1036,7 +1236,7 @@ void __init mp_config_acpi_legacy_irqs(void)
}
if (idx != mp_irq_entries) {
- printk(KERN_DEBUG "ACPI: IRQ%d used by override.\n", i);
+ pr_debug("ACPI: IRQ%d used by override.\n", i);
continue; /* IRQ already used */
}
@@ -1052,83 +1252,6 @@ void __init mp_config_acpi_legacy_irqs(void)
}
}
-static int mp_config_acpi_gsi(struct device *dev, u32 gsi, int trigger,
- int polarity)
-{
-#ifdef CONFIG_X86_MPPARSE
- struct mpc_intsrc mp_irq;
- struct pci_dev *pdev;
- unsigned char number;
- unsigned int devfn;
- int ioapic;
- u8 pin;
-
- if (!acpi_ioapic)
- return 0;
- if (!dev)
- return 0;
- if (dev->bus != &pci_bus_type)
- return 0;
-
- pdev = to_pci_dev(dev);
- number = pdev->bus->number;
- devfn = pdev->devfn;
- pin = pdev->pin;
- /* print the entry should happen on mptable identically */
- mp_irq.type = MP_INTSRC;
- mp_irq.irqtype = mp_INT;
- mp_irq.irqflag = (trigger == ACPI_EDGE_SENSITIVE ? 4 : 0x0c) |
- (polarity == ACPI_ACTIVE_HIGH ? 1 : 3);
- mp_irq.srcbus = number;
- mp_irq.srcbusirq = (((devfn >> 3) & 0x1f) << 2) | ((pin - 1) & 3);
- ioapic = mp_find_ioapic(gsi);
- mp_irq.dstapic = mp_ioapics[ioapic].apicid;
- mp_irq.dstirq = mp_find_ioapic_pin(ioapic, gsi);
-
- mp_save_irq(&mp_irq);
-#endif
- return 0;
-}
-
-int mp_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity)
-{
- int ioapic;
- int ioapic_pin;
- struct io_apic_irq_attr irq_attr;
-
- if (acpi_irq_model != ACPI_IRQ_MODEL_IOAPIC)
- return gsi;
-
- /* Don't set up the ACPI SCI because it's already set up */
- if (acpi_gbl_FADT.sci_interrupt == gsi)
- return gsi;
-
- ioapic = mp_find_ioapic(gsi);
- if (ioapic < 0) {
- printk(KERN_WARNING "No IOAPIC for GSI %u\n", gsi);
- return gsi;
- }
-
- ioapic_pin = mp_find_ioapic_pin(ioapic, gsi);
-
- if (ioapic_pin > MP_MAX_IOAPIC_PIN) {
- printk(KERN_ERR "Invalid reference to IOAPIC pin "
- "%d-%d\n", mp_ioapics[ioapic].apicid,
- ioapic_pin);
- return gsi;
- }
-
- if (enable_update_mptable)
- mp_config_acpi_gsi(dev, gsi, trigger, polarity);
-
- set_io_apic_irq_attr(&irq_attr, ioapic, ioapic_pin,
- trigger == ACPI_EDGE_SENSITIVE ? 0 : 1,
- polarity == ACPI_ACTIVE_HIGH ? 0 : 1);
- io_apic_set_pci_routing(dev, gsi_to_irq(gsi), &irq_attr);
-
- return gsi;
-}
-
/*
* Parse IOAPIC related entries in MADT
* returns 0 on success, < 0 on error
@@ -1146,35 +1269,31 @@ static int __init acpi_parse_madt_ioapic_entries(void)
if (acpi_disabled || acpi_noirq)
return -ENODEV;
- if (!cpu_has_apic)
+ if (!boot_cpu_has(X86_FEATURE_APIC))
return -ENODEV;
/*
* if "noapic" boot option, don't look for IO-APICs
*/
if (skip_ioapic_setup) {
- printk(KERN_INFO PREFIX "Skipping IOAPIC probe "
- "due to 'noapic' option.\n");
+ pr_info("Skipping IOAPIC probe due to 'noapic' option.\n");
return -ENODEV;
}
- count =
- acpi_table_parse_madt(ACPI_MADT_TYPE_IO_APIC, acpi_parse_ioapic,
- MAX_IO_APICS);
+ count = acpi_table_parse_madt(ACPI_MADT_TYPE_IO_APIC, acpi_parse_ioapic,
+ MAX_IO_APICS);
if (!count) {
- printk(KERN_ERR PREFIX "No IOAPIC entries present\n");
+ pr_err("No IOAPIC entries present\n");
return -ENODEV;
} else if (count < 0) {
- printk(KERN_ERR PREFIX "Error parsing IOAPIC entry\n");
+ pr_err("Error parsing IOAPIC entry\n");
return count;
}
- count =
- acpi_table_parse_madt(ACPI_MADT_TYPE_INTERRUPT_OVERRIDE, acpi_parse_int_src_ovr,
- nr_irqs);
+ count = acpi_table_parse_madt(ACPI_MADT_TYPE_INTERRUPT_OVERRIDE,
+ acpi_parse_int_src_ovr, nr_irqs);
if (count < 0) {
- printk(KERN_ERR PREFIX
- "Error parsing interrupt source overrides entry\n");
+ pr_err("Error parsing interrupt source overrides entry\n");
/* TBD: Cleanup to allow fallback to MPS */
return count;
}
@@ -1182,19 +1301,19 @@ static int __init acpi_parse_madt_ioapic_entries(void)
/*
* If BIOS did not supply an INT_SRC_OVR for the SCI
* pretend we got one so we can set the SCI flags.
+ * But ignore setting up SCI on hardware reduced platforms.
*/
- if (!acpi_sci_override_gsi)
+ if (acpi_sci_override_gsi == INVALID_ACPI_IRQ && !acpi_gbl_reduced_hardware)
acpi_sci_ioapic_setup(acpi_gbl_FADT.sci_interrupt, 0, 0,
acpi_gbl_FADT.sci_interrupt);
/* Fill in identity legacy mappings where no override */
mp_config_acpi_legacy_irqs();
- count =
- acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE, acpi_parse_nmi_src,
- nr_irqs);
+ count = acpi_table_parse_madt(ACPI_MADT_TYPE_NMI_SOURCE,
+ acpi_parse_nmi_src, nr_irqs);
if (count < 0) {
- printk(KERN_ERR PREFIX "Error parsing NMI SRC entry\n");
+ pr_err("Error parsing NMI SRC entry\n");
/* TBD: Cleanup to allow fallback to MPS */
return count;
}
@@ -1227,8 +1346,7 @@ static void __init early_acpi_process_madt(void)
/*
* Dell Precision Workstation 410, 610 come here.
*/
- printk(KERN_ERR PREFIX
- "Invalid BIOS MADT, disabling ACPI\n");
+ pr_err("Invalid BIOS MADT, disabling ACPI\n");
disable_acpi();
}
}
@@ -1252,19 +1370,28 @@ static void __init acpi_process_madt(void)
/*
* Parse MADT IO-APIC entries
*/
+ mutex_lock(&acpi_ioapic_lock);
error = acpi_parse_madt_ioapic_entries();
+ mutex_unlock(&acpi_ioapic_lock);
if (!error) {
acpi_set_irq_model_ioapic();
smp_found_config = 1;
}
+
+#ifdef CONFIG_X86_64
+ /*
+ * Parse MADT MP Wake entry.
+ */
+ acpi_table_parse_madt(ACPI_MADT_TYPE_MULTIPROC_WAKEUP,
+ acpi_parse_mp_wake, 1);
+#endif
}
if (error == -EINVAL) {
/*
* Dell Precision Workstation 410, 610 come here.
*/
- printk(KERN_ERR PREFIX
- "Invalid BIOS MADT, disabling ACPI\n");
+ pr_err("Invalid BIOS MADT, disabling ACPI\n");
disable_acpi();
}
} else {
@@ -1274,8 +1401,7 @@ static void __init acpi_process_madt(void)
* Boot with "acpi=off" to use MPS on such a system.
*/
if (smp_found_config) {
- printk(KERN_WARNING PREFIX
- "No APIC-table, disabling MPS\n");
+ pr_warn("No APIC-table, disabling MPS\n");
smp_found_config = 0;
}
}
@@ -1285,11 +1411,9 @@ static void __init acpi_process_madt(void)
* processors, where MPS only supports physical.
*/
if (acpi_lapic && acpi_ioapic)
- printk(KERN_INFO "Using ACPI (MADT) for SMP configuration "
- "information\n");
+ pr_info("Using ACPI (MADT) for SMP configuration information\n");
else if (acpi_lapic)
- printk(KERN_INFO "Using ACPI for processor (LAPIC) "
- "configuration information\n");
+ pr_info("Using ACPI for processor (LAPIC) configuration information\n");
#endif
return;
}
@@ -1297,8 +1421,7 @@ static void __init acpi_process_madt(void)
static int __init disable_acpi_irq(const struct dmi_system_id *d)
{
if (!acpi_force) {
- printk(KERN_NOTICE "%s detected: force use of acpi=noirq\n",
- d->ident);
+ pr_notice("%s detected: force use of acpi=noirq\n", d->ident);
acpi_noirq_set();
}
return 0;
@@ -1307,37 +1430,41 @@ static int __init disable_acpi_irq(const struct dmi_system_id *d)
static int __init disable_acpi_pci(const struct dmi_system_id *d)
{
if (!acpi_force) {
- printk(KERN_NOTICE "%s detected: force use of pci=noacpi\n",
- d->ident);
+ pr_notice("%s detected: force use of pci=noacpi\n", d->ident);
acpi_disable_pci();
}
return 0;
}
+static int __init disable_acpi_xsdt(const struct dmi_system_id *d)
+{
+ if (!acpi_force) {
+ pr_notice("%s detected: force use of acpi=rsdt\n", d->ident);
+ acpi_gbl_do_not_use_xsdt = TRUE;
+ } else {
+ pr_notice("Warning: DMI blacklist says broken, but acpi XSDT forced\n");
+ }
+ return 0;
+}
+
static int __init dmi_disable_acpi(const struct dmi_system_id *d)
{
if (!acpi_force) {
- printk(KERN_NOTICE "%s detected: acpi off\n", d->ident);
+ pr_notice("%s detected: acpi off\n", d->ident);
disable_acpi();
} else {
- printk(KERN_NOTICE
- "Warning: DMI blacklist says broken, but acpi forced\n");
+ pr_notice("Warning: DMI blacklist says broken, but acpi forced\n");
}
return 0;
}
/*
- * Force ignoring BIOS IRQ0 pin2 override
+ * Force ignoring BIOS IRQ0 override
*/
static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
{
- /*
- * The ati_ixp4x0_rev() early PCI quirk should have set
- * the acpi_skip_timer_override flag already:
- */
if (!acpi_skip_timer_override) {
- WARN(1, KERN_ERR "ati_ixp4x0 quirk not complete.\n");
- pr_notice("%s detected: Ignoring BIOS IRQ0 pin2 override\n",
+ pr_notice("%s detected: Ignoring BIOS IRQ0 override\n",
d->ident);
acpi_skip_timer_override = 1;
}
@@ -1345,10 +1472,34 @@ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
}
/*
+ * ACPI offers an alternative platform interface model that removes
+ * ACPI hardware requirements for platforms that do not implement
+ * the PC Architecture.
+ *
+ * We initialize the Hardware-reduced ACPI model here:
+ */
+void __init acpi_generic_reduced_hw_init(void)
+{
+ /*
+ * Override x86_init functions and bypass legacy PIC in
+ * hardware reduced ACPI mode.
+ */
+ x86_init.timers.timer_init = x86_init_noop;
+ x86_init.irqs.pre_vector_init = x86_init_noop;
+ legacy_pic = &null_legacy_pic;
+}
+
+static void __init acpi_reduced_hw_init(void)
+{
+ if (acpi_gbl_reduced_hardware)
+ x86_init.acpi.reduced_hw_early_init();
+}
+
+/*
* If your system is blacklisted here, but you find that acpi=force
* works for you, please contact linux-acpi@vger.kernel.org
*/
-static struct dmi_system_id __initdata acpi_dmi_table[] = {
+static const struct dmi_system_id acpi_dmi_table[] __initconst = {
/*
* Boxes that need ACPI disabled
*/
@@ -1419,11 +1570,24 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"),
},
},
+ /*
+ * Boxes that need ACPI XSDT use disabled due to corrupted tables
+ */
+ {
+ .callback = disable_acpi_xsdt,
+ .ident = "Advantech DAC-BJ01",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "NEC"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Bearlake CRB Board"),
+ DMI_MATCH(DMI_BIOS_VERSION, "V1.12"),
+ DMI_MATCH(DMI_BIOS_DATE, "02/01/2011"),
+ },
+ },
{}
};
/* second table for DMI checks that should run after early-quirks */
-static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
+static const struct dmi_system_id acpi_dmi_table_late[] __initconst = {
/*
* HP laptops which use a DSDT reporting as HP/SB400/10000,
* which includes some code which overrides all temperature
@@ -1431,7 +1595,7 @@ static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
* is enabled. This input is incorrectly designated the
* ISA IRQ 0 via an interrupt source override even though
* it is wired to the output of the master 8259A and INTIN0
- * is not connected at all. Force ignoring BIOS IRQ0 pin2
+ * is not connected at all. Force ignoring BIOS IRQ0
* override in that cases.
*/
{
@@ -1466,6 +1630,14 @@ static struct dmi_system_id __initdata acpi_dmi_table_late[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"),
},
},
+ {
+ .callback = dmi_ignore_irq0_timer_override,
+ .ident = "FUJITSU SIEMENS",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"),
+ },
+ },
{}
};
@@ -1496,15 +1668,23 @@ void __init acpi_boot_table_init(void)
* If acpi_disabled, bail out
*/
if (acpi_disabled)
- return;
+ return;
/*
* Initialize the ACPI boot-time table parser.
*/
- if (acpi_table_init()) {
+ if (acpi_locate_initial_tables())
disable_acpi();
- return;
- }
+ else
+ acpi_reserve_initial_tables();
+}
+
+int __init early_acpi_boot_init(void)
+{
+ if (acpi_disabled)
+ return 1;
+
+ acpi_table_init_complete();
acpi_table_parse(ACPI_SIG_BOOT, acpi_parse_sbf);
@@ -1513,27 +1693,23 @@ void __init acpi_boot_table_init(void)
*/
if (acpi_blacklisted()) {
if (acpi_force) {
- printk(KERN_WARNING PREFIX "acpi=force override\n");
+ pr_warn("acpi=force override\n");
} else {
- printk(KERN_WARNING PREFIX "Disabling ACPI support\n");
+ pr_warn("Disabling ACPI support\n");
disable_acpi();
- return;
+ return 1;
}
}
-}
-int __init early_acpi_boot_init(void)
-{
/*
- * If acpi_disabled, bail out
+ * Process the Multiple APIC Description Table (MADT), if present
*/
- if (acpi_disabled)
- return 1;
+ early_acpi_process_madt();
/*
- * Process the Multiple APIC Description Table (MADT), if present
+ * Hardware-reduced ACPI mode initialization:
*/
- early_acpi_process_madt();
+ acpi_reduced_hw_init();
return 0;
}
@@ -1562,10 +1738,14 @@ int __init acpi_boot_init(void)
acpi_process_madt();
acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet);
+ if (IS_ENABLED(CONFIG_ACPI_BGRT) && !acpi_nobgrt)
+ acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt);
if (!acpi_noirq)
x86_init.pci.init = pci_acpi_init;
+ /* Do not enable ACPI SPCR console by default */
+ acpi_parse_spcr(earlycon_acpi_spcr_enable, false);
return 0;
}
@@ -1589,15 +1769,19 @@ static int __init parse_acpi(char *arg)
}
/* acpi=rsdt use RSDT instead of XSDT */
else if (strcmp(arg, "rsdt") == 0) {
- acpi_rsdt_forced = 1;
+ acpi_gbl_do_not_use_xsdt = TRUE;
}
/* "acpi=noirq" disables ACPI interrupt routing */
else if (strcmp(arg, "noirq") == 0) {
acpi_noirq_set();
}
- /* "acpi=copy_dsdt" copys DSDT */
+ /* "acpi=copy_dsdt" copies DSDT */
else if (strcmp(arg, "copy_dsdt") == 0) {
acpi_gbl_copy_dsdt_locally = 1;
+ }
+ /* "acpi=nocmcff" disables FF mode for corrected errors */
+ else if (strcmp(arg, "nocmcff") == 0) {
+ acpi_disable_cmcff = 1;
} else {
/* Core will printk when we return error. */
return -EINVAL;
@@ -1606,6 +1790,13 @@ static int __init parse_acpi(char *arg)
}
early_param("acpi", parse_acpi);
+static int __init parse_acpi_bgrt(char *arg)
+{
+ acpi_nobgrt = true;
+ return 0;
+}
+early_param("bgrt_disable", parse_acpi_bgrt);
+
/* FIXME: Using pci= for an ACPI parameter is a travesty. */
static int __init parse_pci(char *arg)
{
@@ -1620,9 +1811,7 @@ int __init acpi_mps_check(void)
#if defined(CONFIG_X86_LOCAL_APIC) && !defined(CONFIG_X86_MPPARSE)
/* mptable code is not built-in*/
if (acpi_disabled || acpi_noirq) {
- printk(KERN_WARNING "MPS support code is not built-in.\n"
- "Using acpi=off or acpi=noirq or pci=noacpi "
- "may have problem\n");
+ pr_warn("MPS support code is not built-in, using acpi=off or acpi=noirq or pci=noacpi may have problem\n");
return 1;
}
#endif
@@ -1670,21 +1859,42 @@ early_param("acpi_sci", setup_acpi_sci);
int __acpi_acquire_global_lock(unsigned int *lock)
{
unsigned int old, new, val;
+
+ old = READ_ONCE(*lock);
do {
- old = *lock;
- new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
- val = cmpxchg(lock, old, new);
- } while (unlikely (val != old));
- return (new < 3) ? -1 : 0;
+ val = (old >> 1) & 0x1;
+ new = (old & ~0x3) + 2 + val;
+ } while (!try_cmpxchg(lock, &old, new));
+
+ if (val)
+ return 0;
+
+ return -1;
}
int __acpi_release_global_lock(unsigned int *lock)
{
- unsigned int old, new, val;
+ unsigned int old, new;
+
+ old = READ_ONCE(*lock);
do {
- old = *lock;
new = old & ~0x3;
- val = cmpxchg(lock, old, new);
- } while (unlikely (val != old));
+ } while (!try_cmpxchg(lock, &old, new));
return old & 0x1;
}
+
+void __init arch_reserve_mem_area(acpi_physical_address addr, size_t size)
+{
+ e820__range_add(addr, size, E820_TYPE_NVS);
+ e820__update_table_print();
+}
+
+void x86_default_set_root_pointer(u64 addr)
+{
+ boot_params.acpi_rsdp_addr = addr;
+}
+
+u64 x86_default_get_root_pointer(void)
+{
+ return boot_params.acpi_rsdp_addr;
+}
diff --git a/arch/x86/kernel/acpi/cppc.c b/arch/x86/kernel/acpi/cppc.c
new file mode 100644
index 000000000000..8d8752b44f11
--- /dev/null
+++ b/arch/x86/kernel/acpi/cppc.c
@@ -0,0 +1,118 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * cppc.c: CPPC Interface for x86
+ * Copyright (c) 2016, Intel Corporation.
+ */
+
+#include <acpi/cppc_acpi.h>
+#include <asm/msr.h>
+#include <asm/processor.h>
+#include <asm/topology.h>
+
+/* Refer to drivers/acpi/cppc_acpi.c for the description of functions */
+
+bool cpc_supported_by_cpu(void)
+{
+ switch (boot_cpu_data.x86_vendor) {
+ case X86_VENDOR_AMD:
+ case X86_VENDOR_HYGON:
+ if (boot_cpu_data.x86 == 0x19 && ((boot_cpu_data.x86_model <= 0x0f) ||
+ (boot_cpu_data.x86_model >= 0x20 && boot_cpu_data.x86_model <= 0x2f)))
+ return true;
+ else if (boot_cpu_data.x86 == 0x17 &&
+ boot_cpu_data.x86_model >= 0x70 && boot_cpu_data.x86_model <= 0x7f)
+ return true;
+ return boot_cpu_has(X86_FEATURE_CPPC);
+ }
+ return false;
+}
+
+bool cpc_ffh_supported(void)
+{
+ return true;
+}
+
+int cpc_read_ffh(int cpunum, struct cpc_reg *reg, u64 *val)
+{
+ int err;
+
+ err = rdmsrl_safe_on_cpu(cpunum, reg->address, val);
+ if (!err) {
+ u64 mask = GENMASK_ULL(reg->bit_offset + reg->bit_width - 1,
+ reg->bit_offset);
+
+ *val &= mask;
+ *val >>= reg->bit_offset;
+ }
+ return err;
+}
+
+int cpc_write_ffh(int cpunum, struct cpc_reg *reg, u64 val)
+{
+ u64 rd_val;
+ int err;
+
+ err = rdmsrl_safe_on_cpu(cpunum, reg->address, &rd_val);
+ if (!err) {
+ u64 mask = GENMASK_ULL(reg->bit_offset + reg->bit_width - 1,
+ reg->bit_offset);
+
+ val <<= reg->bit_offset;
+ val &= mask;
+ rd_val &= ~mask;
+ rd_val |= val;
+ err = wrmsrl_safe_on_cpu(cpunum, reg->address, rd_val);
+ }
+ return err;
+}
+
+static void amd_set_max_freq_ratio(void)
+{
+ struct cppc_perf_caps perf_caps;
+ u64 highest_perf, nominal_perf;
+ u64 perf_ratio;
+ int rc;
+
+ rc = cppc_get_perf_caps(0, &perf_caps);
+ if (rc) {
+ pr_debug("Could not retrieve perf counters (%d)\n", rc);
+ return;
+ }
+
+ highest_perf = amd_get_highest_perf();
+ nominal_perf = perf_caps.nominal_perf;
+
+ if (!highest_perf || !nominal_perf) {
+ pr_debug("Could not retrieve highest or nominal performance\n");
+ return;
+ }
+
+ perf_ratio = div_u64(highest_perf * SCHED_CAPACITY_SCALE, nominal_perf);
+ /* midpoint between max_boost and max_P */
+ perf_ratio = (perf_ratio + SCHED_CAPACITY_SCALE) >> 1;
+ if (!perf_ratio) {
+ pr_debug("Non-zero highest/nominal perf values led to a 0 ratio\n");
+ return;
+ }
+
+ freq_invariance_set_perf_ratio(perf_ratio, false);
+}
+
+static DEFINE_MUTEX(freq_invariance_lock);
+
+void init_freq_invariance_cppc(void)
+{
+ static bool init_done;
+
+ if (!cpu_feature_enabled(X86_FEATURE_APERFMPERF))
+ return;
+
+ if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
+ return;
+
+ mutex_lock(&freq_invariance_lock);
+ if (!init_done)
+ amd_set_max_freq_ratio();
+ init_done = true;
+ mutex_unlock(&freq_invariance_lock);
+}
diff --git a/arch/x86/kernel/acpi/cstate.c b/arch/x86/kernel/acpi/cstate.c
index 5812404a0d4c..401808b47af3 100644
--- a/arch/x86/kernel/acpi/cstate.c
+++ b/arch/x86/kernel/acpi/cstate.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2005 Intel Corporation
* Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
@@ -5,15 +6,15 @@
*/
#include <linux/kernel.h>
-#include <linux/module.h>
+#include <linux/export.h>
#include <linux/init.h>
#include <linux/acpi.h>
#include <linux/cpu.h>
#include <linux/sched.h>
#include <acpi/processor.h>
-#include <asm/acpi.h>
#include <asm/mwait.h>
+#include <asm/special_insns.h>
/*
* Initialize bm_flags based on the CPU cache properties
@@ -51,6 +52,56 @@ void acpi_processor_power_init_bm_check(struct acpi_processor_flags *flags,
if (c->x86_vendor == X86_VENDOR_INTEL &&
(c->x86 > 0xf || (c->x86 == 6 && c->x86_model >= 0x0f)))
flags->bm_control = 0;
+
+ if (c->x86_vendor == X86_VENDOR_CENTAUR) {
+ if (c->x86 > 6 || (c->x86 == 6 && c->x86_model == 0x0f &&
+ c->x86_stepping >= 0x0e)) {
+ /*
+ * For all recent Centaur CPUs, the ucode will make sure that each
+ * core can keep cache coherence with each other while entering C3
+ * type state. So, set bm_check to 1 to indicate that the kernel
+ * doesn't need to execute a cache flush operation (WBINVD) when
+ * entering C3 type state.
+ */
+ flags->bm_check = 1;
+ /*
+ * For all recent Centaur platforms, ARB_DISABLE is a nop.
+ * Set bm_control to zero to indicate that ARB_DISABLE is
+ * not required while entering C3 type state.
+ */
+ flags->bm_control = 0;
+ }
+ }
+
+ if (c->x86_vendor == X86_VENDOR_ZHAOXIN) {
+ /*
+ * All Zhaoxin CPUs that support C3 share cache.
+ * And caches should not be flushed by software while
+ * entering C3 type state.
+ */
+ flags->bm_check = 1;
+ /*
+ * On all recent Zhaoxin platforms, ARB_DISABLE is a nop.
+ * So, set bm_control to zero to indicate that ARB_DISABLE
+ * is not required while entering C3 type state.
+ */
+ flags->bm_control = 0;
+ }
+ if (c->x86_vendor == X86_VENDOR_AMD && c->x86 >= 0x17) {
+ /*
+ * For all AMD Zen or newer CPUs that support C3, caches
+ * should not be flushed by software while entering C3
+ * type state. Set bm->check to 1 so that kernel doesn't
+ * need to execute cache flush operation.
+ */
+ flags->bm_check = 1;
+ /*
+ * In current AMD C state implementation ARB_DIS is no longer
+ * used. So set bm_control to zero to indicate ARB_DIS is not
+ * required while entering C3 type state.
+ */
+ flags->bm_control = 0;
+ }
}
EXPORT_SYMBOL(acpi_processor_power_init_bm_check);
@@ -86,7 +137,10 @@ static long acpi_processor_ffh_cstate_probe_cpu(void *_cx)
num_cstate_subtype = edx_part & MWAIT_SUBSTATE_MASK;
retval = 0;
- if (num_cstate_subtype < (cx->address & MWAIT_SUBSTATE_MASK)) {
+ /* If the HW does not support any sub-states in this C-state */
+ if (num_cstate_subtype == 0) {
+ pr_warn(FW_BUG "ACPI MWAIT C-state 0x%x not supported by HW (0x%x)\n",
+ cx->address, edx_part);
retval = -1;
goto out;
}
@@ -101,11 +155,11 @@ static long acpi_processor_ffh_cstate_probe_cpu(void *_cx)
if (!mwait_supported[cstate_type]) {
mwait_supported[cstate_type] = 1;
printk(KERN_DEBUG
- "Monitor-Mwait will be used to enter C-%d "
- "state\n", cx->type);
+ "Monitor-Mwait will be used to enter C-%d state\n",
+ cx->type);
}
snprintf(cx->desc,
- ACPI_CX_DESC_LEN, "ACPI FFH INTEL MWAIT 0x%x",
+ ACPI_CX_DESC_LEN, "ACPI FFH MWAIT 0x%x",
cx->address);
out:
return retval;
@@ -130,7 +184,8 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
/* Make sure we are running on right CPU */
- retval = work_on_cpu(cpu, acpi_processor_ffh_cstate_probe_cpu, cx);
+ retval = call_on_cpu(cpu, acpi_processor_ffh_cstate_probe_cpu, cx,
+ false);
if (retval == 0) {
/* Use the hint in CST */
percpu_entry->states[cx->index].eax = cx->address;
@@ -149,7 +204,7 @@ int acpi_processor_ffh_cstate_probe(unsigned int cpu,
}
EXPORT_SYMBOL_GPL(acpi_processor_ffh_cstate_probe);
-void acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cx)
+void __cpuidle acpi_processor_ffh_cstate_enter(struct acpi_processor_cx *cx)
{
unsigned int cpu = smp_processor_id();
struct cstate_entry *percpu_entry;
@@ -163,7 +218,10 @@ EXPORT_SYMBOL_GPL(acpi_processor_ffh_cstate_enter);
static int __init ffh_cstate_init(void)
{
struct cpuinfo_x86 *c = &boot_cpu_data;
- if (c->x86_vendor != X86_VENDOR_INTEL)
+
+ if (c->x86_vendor != X86_VENDOR_INTEL &&
+ c->x86_vendor != X86_VENDOR_AMD &&
+ c->x86_vendor != X86_VENDOR_HYGON)
return -1;
cpu_cstate_entry = alloc_percpu(struct cstate_entry);
diff --git a/arch/x86/kernel/acpi/realmode/.gitignore b/arch/x86/kernel/acpi/realmode/.gitignore
deleted file mode 100644
index 58f1f48a58f8..000000000000
--- a/arch/x86/kernel/acpi/realmode/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-wakeup.bin
-wakeup.elf
-wakeup.lds
diff --git a/arch/x86/kernel/acpi/realmode/Makefile b/arch/x86/kernel/acpi/realmode/Makefile
deleted file mode 100644
index 6a564ac67ef5..000000000000
--- a/arch/x86/kernel/acpi/realmode/Makefile
+++ /dev/null
@@ -1,59 +0,0 @@
-#
-# arch/x86/kernel/acpi/realmode/Makefile
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License. See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-
-always := wakeup.bin
-targets := wakeup.elf wakeup.lds
-
-wakeup-y += wakeup.o wakemain.o video-mode.o copy.o bioscall.o regs.o
-
-# The link order of the video-*.o modules can matter. In particular,
-# video-vga.o *must* be listed first, followed by video-vesa.o.
-# Hardware-specific drivers should follow in the order they should be
-# probed, and video-bios.o should typically be last.
-wakeup-y += video-vga.o
-wakeup-y += video-vesa.o
-wakeup-y += video-bios.o
-
-targets += $(wakeup-y)
-
-bootsrc := $(src)/../../../boot
-
-# ---------------------------------------------------------------------------
-
-# How to compile the 16-bit code. Note we always compile for -march=i386,
-# that way we can complain to the user if the CPU is insufficient.
-# Compile with _SETUP since this is similar to the boot-time setup code.
-KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os -D_SETUP -D_WAKEUP -D__KERNEL__ \
- -I$(srctree)/$(bootsrc) \
- $(cflags-y) \
- -Wall -Wstrict-prototypes \
- -march=i386 -mregparm=3 \
- -include $(srctree)/$(bootsrc)/code16gcc.h \
- -fno-strict-aliasing -fomit-frame-pointer \
- $(call cc-option, -ffreestanding) \
- $(call cc-option, -fno-toplevel-reorder,\
- $(call cc-option, -fno-unit-at-a-time)) \
- $(call cc-option, -fno-stack-protector) \
- $(call cc-option, -mpreferred-stack-boundary=2)
-KBUILD_CFLAGS += $(call cc-option, -m32)
-KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__
-GCOV_PROFILE := n
-
-WAKEUP_OBJS = $(addprefix $(obj)/,$(wakeup-y))
-
-LDFLAGS_wakeup.elf := -T
-
-CPPFLAGS_wakeup.lds += -P -C
-
-$(obj)/wakeup.elf: $(obj)/wakeup.lds $(WAKEUP_OBJS) FORCE
- $(call if_changed,ld)
-
-OBJCOPYFLAGS_wakeup.bin := -O binary
-
-$(obj)/wakeup.bin: $(obj)/wakeup.elf FORCE
- $(call if_changed,objcopy)
diff --git a/arch/x86/kernel/acpi/realmode/bioscall.S b/arch/x86/kernel/acpi/realmode/bioscall.S
deleted file mode 100644
index f51eb0bb56ce..000000000000
--- a/arch/x86/kernel/acpi/realmode/bioscall.S
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/bioscall.S"
diff --git a/arch/x86/kernel/acpi/realmode/copy.S b/arch/x86/kernel/acpi/realmode/copy.S
deleted file mode 100644
index dc59ebee69d8..000000000000
--- a/arch/x86/kernel/acpi/realmode/copy.S
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/copy.S"
diff --git a/arch/x86/kernel/acpi/realmode/regs.c b/arch/x86/kernel/acpi/realmode/regs.c
deleted file mode 100644
index 6206033ba202..000000000000
--- a/arch/x86/kernel/acpi/realmode/regs.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/regs.c"
diff --git a/arch/x86/kernel/acpi/realmode/video-bios.c b/arch/x86/kernel/acpi/realmode/video-bios.c
deleted file mode 100644
index 7deabc144a27..000000000000
--- a/arch/x86/kernel/acpi/realmode/video-bios.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/video-bios.c"
diff --git a/arch/x86/kernel/acpi/realmode/video-mode.c b/arch/x86/kernel/acpi/realmode/video-mode.c
deleted file mode 100644
index 328ad209f113..000000000000
--- a/arch/x86/kernel/acpi/realmode/video-mode.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/video-mode.c"
diff --git a/arch/x86/kernel/acpi/realmode/video-vesa.c b/arch/x86/kernel/acpi/realmode/video-vesa.c
deleted file mode 100644
index 9dbb9672226a..000000000000
--- a/arch/x86/kernel/acpi/realmode/video-vesa.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/video-vesa.c"
diff --git a/arch/x86/kernel/acpi/realmode/video-vga.c b/arch/x86/kernel/acpi/realmode/video-vga.c
deleted file mode 100644
index bcc81255f374..000000000000
--- a/arch/x86/kernel/acpi/realmode/video-vga.c
+++ /dev/null
@@ -1 +0,0 @@
-#include "../../../boot/video-vga.c"
diff --git a/arch/x86/kernel/acpi/realmode/wakeup.S b/arch/x86/kernel/acpi/realmode/wakeup.S
deleted file mode 100644
index ead21b663117..000000000000
--- a/arch/x86/kernel/acpi/realmode/wakeup.S
+++ /dev/null
@@ -1,156 +0,0 @@
-/*
- * ACPI wakeup real mode startup stub
- */
-#include <asm/segment.h>
-#include <asm/msr-index.h>
-#include <asm/page_types.h>
-#include <asm/pgtable_types.h>
-#include <asm/processor-flags.h>
-#include "wakeup.h"
-
- .code16
- .section ".jump", "ax"
- .globl _start
-_start:
- cli
- jmp wakeup_code
-
-/* This should match the structure in wakeup.h */
- .section ".header", "a"
- .globl wakeup_header
-wakeup_header:
-video_mode: .short 0 /* Video mode number */
-pmode_return: .byte 0x66, 0xea /* ljmpl */
- .long 0 /* offset goes here */
- .short __KERNEL_CS
-pmode_cr0: .long 0 /* Saved %cr0 */
-pmode_cr3: .long 0 /* Saved %cr3 */
-pmode_cr4: .long 0 /* Saved %cr4 */
-pmode_efer: .quad 0 /* Saved EFER */
-pmode_gdt: .quad 0
-realmode_flags: .long 0
-real_magic: .long 0
-trampoline_segment: .word 0
-_pad1: .byte 0
-wakeup_jmp: .byte 0xea /* ljmpw */
-wakeup_jmp_off: .word 3f
-wakeup_jmp_seg: .word 0
-wakeup_gdt: .quad 0, 0, 0
-signature: .long WAKEUP_HEADER_SIGNATURE
-
- .text
- .code16
-wakeup_code:
- cld
-
- /* Apparently some dimwit BIOS programmers don't know how to
- program a PM to RM transition, and we might end up here with
- junk in the data segment descriptor registers. The only way
- to repair that is to go into PM and fix it ourselves... */
- movw $16, %cx
- lgdtl %cs:wakeup_gdt
- movl %cr0, %eax
- orb $X86_CR0_PE, %al
- movl %eax, %cr0
- jmp 1f
-1: ljmpw $8, $2f
-2:
- movw %cx, %ds
- movw %cx, %es
- movw %cx, %ss
- movw %cx, %fs
- movw %cx, %gs
-
- andb $~X86_CR0_PE, %al
- movl %eax, %cr0
- jmp wakeup_jmp
-3:
- /* Set up segments */
- movw %cs, %ax
- movw %ax, %ds
- movw %ax, %es
- movw %ax, %ss
- lidtl wakeup_idt
-
- movl $wakeup_stack_end, %esp
-
- /* Clear the EFLAGS */
- pushl $0
- popfl
-
- /* Check header signature... */
- movl signature, %eax
- cmpl $WAKEUP_HEADER_SIGNATURE, %eax
- jne bogus_real_magic
-
- /* Check we really have everything... */
- movl end_signature, %eax
- cmpl $WAKEUP_END_SIGNATURE, %eax
- jne bogus_real_magic
-
- /* Call the C code */
- calll main
-
- /* Do any other stuff... */
-
-#ifndef CONFIG_64BIT
- /* This could also be done in C code... */
- movl pmode_cr3, %eax
- movl %eax, %cr3
-
- movl pmode_cr4, %ecx
- jecxz 1f
- movl %ecx, %cr4
-1:
- movl pmode_efer, %eax
- movl pmode_efer + 4, %edx
- movl %eax, %ecx
- orl %edx, %ecx
- jz 1f
- movl $MSR_EFER, %ecx
- wrmsr
-1:
-
- lgdtl pmode_gdt
-
- /* This really couldn't... */
- movl pmode_cr0, %eax
- movl %eax, %cr0
- jmp pmode_return
-#else
- pushw $0
- pushw trampoline_segment
- pushw $0
- lret
-#endif
-
-bogus_real_magic:
-1:
- hlt
- jmp 1b
-
- .data
- .balign 8
-
- /* This is the standard real-mode IDT */
-wakeup_idt:
- .word 0xffff /* limit */
- .long 0 /* address */
- .word 0
-
- .globl HEAP, heap_end
-HEAP:
- .long wakeup_heap
-heap_end:
- .long wakeup_stack
-
- .bss
-wakeup_heap:
- .space 2048
-wakeup_stack:
- .space 2048
-wakeup_stack_end:
-
- .section ".signature","a"
-end_signature:
- .long WAKEUP_END_SIGNATURE
diff --git a/arch/x86/kernel/acpi/realmode/wakeup.lds.S b/arch/x86/kernel/acpi/realmode/wakeup.lds.S
deleted file mode 100644
index d4f8010a5b1b..000000000000
--- a/arch/x86/kernel/acpi/realmode/wakeup.lds.S
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * wakeup.ld
- *
- * Linker script for the real-mode wakeup code
- */
-#undef i386
-#include "wakeup.h"
-
-OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
-OUTPUT_ARCH(i386)
-ENTRY(_start)
-
-SECTIONS
-{
- . = 0;
- .jump : {
- *(.jump)
- } = 0x90909090
-
- . = WAKEUP_HEADER_OFFSET;
- .header : {
- *(.header)
- }
-
- . = ALIGN(16);
- .text : {
- *(.text*)
- } = 0x90909090
-
- . = ALIGN(16);
- .rodata : {
- *(.rodata*)
- }
-
- .videocards : {
- video_cards = .;
- *(.videocards)
- video_cards_end = .;
- }
-
- . = ALIGN(16);
- .data : {
- *(.data*)
- }
-
- . = ALIGN(16);
- .bss : {
- __bss_start = .;
- *(.bss)
- __bss_end = .;
- }
-
- .signature : {
- *(.signature)
- }
-
- _end = .;
-
- /DISCARD/ : {
- *(.note*)
- }
-}
diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index ff93bc1b09c3..1328c221af30 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* sleep.c - x86-specific ACPI sleep support.
*
@@ -6,16 +7,18 @@
*/
#include <linux/acpi.h>
-#include <linux/bootmem.h>
#include <linux/memblock.h>
#include <linux/dmi.h>
#include <linux/cpumask.h>
+#include <linux/pgtable.h>
#include <asm/segment.h>
#include <asm/desc.h>
-#include <asm/pgtable.h>
#include <asm/cacheflush.h>
+#include <asm/realmode.h>
+#include <asm/hypervisor.h>
-#include "realmode/wakeup.h"
+#include <linux/ftrace.h>
+#include "../../realmode/rm/wakeup.h"
#include "sleep.h"
unsigned long acpi_realmode_flags;
@@ -25,20 +28,38 @@ static char temp_stack[4096];
#endif
/**
- * acpi_suspend_lowlevel - save kernel state
+ * acpi_get_wakeup_address - provide physical address for S3 wakeup
+ *
+ * Returns the physical address where the kernel should be resumed after the
+ * system awakes from S3, e.g. for programming into the firmware waking vector.
+ */
+unsigned long acpi_get_wakeup_address(void)
+{
+ return ((unsigned long)(real_mode_header->wakeup_start));
+}
+
+/**
+ * x86_acpi_enter_sleep_state - enter sleep state
+ * @state: Sleep state to enter.
+ *
+ * Wrapper around acpi_enter_sleep_state() to be called by assembly.
+ */
+asmlinkage acpi_status __visible x86_acpi_enter_sleep_state(u8 state)
+{
+ return acpi_enter_sleep_state(state);
+}
+
+/**
+ * x86_acpi_suspend_lowlevel - save kernel state
*
* Create an identity mapped page table and copy the wakeup routine to
* low memory.
*/
-int acpi_suspend_lowlevel(void)
+int x86_acpi_suspend_lowlevel(void)
{
- struct wakeup_header *header;
- /* address in low memory of the wakeup routine. */
- char *acpi_realmode;
-
- acpi_realmode = TRAMPOLINE_SYM(acpi_wakeup_code);
+ struct wakeup_header *header =
+ (struct wakeup_header *) __va(real_mode_header->wakeup_header);
- header = (struct wakeup_header *)(acpi_realmode + WAKEUP_HEADER_OFFSET);
if (header->signature != WAKEUP_HEADER_SIGNATURE) {
printk(KERN_ERR "wakeup header does not match\n");
return -EINVAL;
@@ -46,57 +67,79 @@ int acpi_suspend_lowlevel(void)
header->video_mode = saved_video_mode;
- header->wakeup_jmp_seg = acpi_wakeup_address >> 4;
-
- /*
- * Set up the wakeup GDT. We set these up as Big Real Mode,
- * that is, with limits set to 4 GB. At least the Lenovo
- * Thinkpad X61 is known to need this for the video BIOS
- * initialization quirk to work; this is likely to also
- * be the case for other laptops or integrated video devices.
- */
-
- /* GDT[0]: GDT self-pointer */
- header->wakeup_gdt[0] =
- (u64)(sizeof(header->wakeup_gdt) - 1) +
- ((u64)__pa(&header->wakeup_gdt) << 16);
- /* GDT[1]: big real mode-like code segment */
- header->wakeup_gdt[1] =
- GDT_ENTRY(0x809b, acpi_wakeup_address, 0xfffff);
- /* GDT[2]: big real mode-like data segment */
- header->wakeup_gdt[2] =
- GDT_ENTRY(0x8093, acpi_wakeup_address, 0xfffff);
+ header->pmode_behavior = 0;
#ifndef CONFIG_64BIT
- store_gdt((struct desc_ptr *)&header->pmode_gdt);
+ native_store_gdt((struct desc_ptr *)&header->pmode_gdt);
- if (rdmsr_safe(MSR_EFER, &header->pmode_efer_low,
- &header->pmode_efer_high))
- header->pmode_efer_low = header->pmode_efer_high = 0;
+ /*
+ * We have to check that we can write back the value, and not
+ * just read it. At least on 90 nm Pentium M (Family 6, Model
+ * 13), reading an invalid MSR is not guaranteed to trap, see
+ * Erratum X4 in "Intel Pentium M Processor on 90 nm Process
+ * with 2-MB L2 Cache and IntelĀ® Processor A100 and A110 on 90
+ * nm process with 512-KB L2 Cache Specification Update".
+ */
+ if (!rdmsr_safe(MSR_EFER,
+ &header->pmode_efer_low,
+ &header->pmode_efer_high) &&
+ !wrmsr_safe(MSR_EFER,
+ header->pmode_efer_low,
+ header->pmode_efer_high))
+ header->pmode_behavior |= (1 << WAKEUP_BEHAVIOR_RESTORE_EFER);
#endif /* !CONFIG_64BIT */
header->pmode_cr0 = read_cr0();
- header->pmode_cr4 = read_cr4_safe();
+ if (__this_cpu_read(cpu_info.cpuid_level) >= 0) {
+ header->pmode_cr4 = __read_cr4();
+ header->pmode_behavior |= (1 << WAKEUP_BEHAVIOR_RESTORE_CR4);
+ }
+ if (!rdmsr_safe(MSR_IA32_MISC_ENABLE,
+ &header->pmode_misc_en_low,
+ &header->pmode_misc_en_high) &&
+ !wrmsr_safe(MSR_IA32_MISC_ENABLE,
+ header->pmode_misc_en_low,
+ header->pmode_misc_en_high))
+ header->pmode_behavior |=
+ (1 << WAKEUP_BEHAVIOR_RESTORE_MISC_ENABLE);
header->realmode_flags = acpi_realmode_flags;
header->real_magic = 0x12345678;
#ifndef CONFIG_64BIT
header->pmode_entry = (u32)&wakeup_pmode_return;
- header->pmode_cr3 = (u32)__pa(&initial_page_table);
+ header->pmode_cr3 = (u32)__pa_symbol(initial_page_table);
saved_magic = 0x12345678;
#else /* CONFIG_64BIT */
- header->trampoline_segment = trampoline_address() >> 4;
#ifdef CONFIG_SMP
- stack_start = (unsigned long)temp_stack + sizeof(temp_stack);
- early_gdt_descr.address =
- (unsigned long)get_cpu_gdt_table(smp_processor_id());
- initial_gs = per_cpu_offset(smp_processor_id());
+ /*
+ * As each CPU starts up, it will find its own stack pointer
+ * from its current_task->thread.sp. Typically that will be
+ * the idle thread for a newly-started AP, or even the boot
+ * CPU which will find it set to &init_task in the static
+ * per-cpu data.
+ *
+ * Make the resuming CPU use the temporary stack at startup
+ * by setting current->thread.sp to point to that. The true
+ * %rsp will be restored with the rest of the CPU context,
+ * by do_suspend_lowlevel(). And unwinders don't care about
+ * the abuse of ->thread.sp because it's a dead variable
+ * while the thread is running on the CPU anyway; the true
+ * value is in the actual %rsp register.
+ */
+ current->thread.sp = (unsigned long)temp_stack + sizeof(temp_stack);
+ smpboot_control = smp_processor_id();
#endif
initial_code = (unsigned long)wakeup_long64;
- saved_magic = 0x123456789abcdef0L;
+ saved_magic = 0x123456789abcdef0L;
#endif /* CONFIG_64BIT */
+ /*
+ * Pause/unpause graph tracing around do_suspend_lowlevel as it has
+ * inconsistent call/return info after it jumps to the wakeup vector.
+ */
+ pause_graph_tracing();
do_suspend_lowlevel();
+ unpause_graph_tracing();
return 0;
}
@@ -110,18 +153,19 @@ static int __init acpi_sleep_setup(char *str)
if (strncmp(str, "s3_beep", 7) == 0)
acpi_realmode_flags |= 4;
#ifdef CONFIG_HIBERNATION
+ if (strncmp(str, "s4_hwsig", 8) == 0)
+ acpi_check_s4_hw_signature = 1;
if (strncmp(str, "s4_nohwsig", 10) == 0)
- acpi_no_s4_hw_signature();
- if (strncmp(str, "s4_nonvs", 8) == 0) {
- pr_warning("ACPI: acpi_sleep=s4_nonvs is deprecated, "
- "please use acpi_sleep=nonvs instead");
- acpi_nvs_nosave();
- }
+ acpi_check_s4_hw_signature = 0;
#endif
if (strncmp(str, "nonvs", 5) == 0)