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This driver emits error messages when client drivers are trying to get
an interface handle to this driver here before this driver has
completed _probe().
Given this driver returns -EPROBE_DEFER in that case, this is not an
error and shouldn't be emitted to the log, similar to how
dev_err_probe() behaves, so just remove them.
This change also allows us to simplify the logic around releasing of
the acpm_np handle.
Fixes: a88927b534ba ("firmware: add Exynos ACPM protocol driver")
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250319-acpm-fixes-v2-2-ac2c1bcf322b@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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ACPM commands that return more than 8 bytes currently don't work
correctly, as this driver ignores any such returned bytes.
This is evident in at least acpm_pmic_bulk_read(), where up to 8
registers can be read back and those 8 register values are placed
starting at &xfer->rxd[8].
The reason is that xfter->rxlen is initialized with the size of a
pointer (8 bytes), rather than the size of the byte array that pointer
points to (16 bytes)
Update the code such that we set the number of bytes expected to be the
size of the rx buffer.
Note1: While different commands have different lengths rx buffers, we
have to specify the same length for all rx buffers since acpm_get_rx()
assumes they're all the same length.
Note2: The different commands also have different lengths tx buffers,
but before switching the code to use the minimum possible length, some
more testing would have to be done to ensure this works correctly in
all situations. It seems wiser to just apply this fix here without
additional logic changes for now.
Fixes: a88927b534ba ("firmware: add Exynos ACPM protocol driver")
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250319-acpm-fixes-v2-1-ac2c1bcf322b@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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upstream fixes
In particular we need this fix before applying subsequent changes:
d54d610243a4 ("x86/boot/sev: Avoid shared GHCB page for early memory acceptance")
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes. All are device-specific like quirks, new
IDs, and other safe (or rather boring) changes"
* tag 'sound-6.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
firmware: cs_dsp: test_bin_error: Fix uninitialized data used as fw version
ASoC: codecs: Add of_match_table for aw888081 driver
ASoC: fsl: fsl_qmc_audio: Reset audio data pointers on TRIGGER_START event
mailmap: Add entry for Srinivas Kandagatla
MAINTAINERS: use kernel.org alias
ASoC: cs42l43: Reset clamp override on jack removal
ALSA: hda/realtek - Fixed ASUS platform headset Mic issue
ALSA: hda/cirrus_scodec_test: Don't select dependencies
ALSA: azt2320: Replace deprecated strcpy() with strscpy()
ASoC: hdmi-codec: use RTD ID instead of DAI ID for ELD entry
ASoC: Intel: avs: Constrain path based on BE capabilities
ALSA: hda/tas2781: Remove unnecessary NULL check before release_firmware()
ASoC: Intel: avs: Fix null-ptr-deref in avs_component_probe()
ASoC: fsl_asrc_dma: get codec or cpu dai from backend
ASoC: qcom: Fix sc7280 lpass potential buffer overflow
ASoC: dwc: always enable/disable i2s irqs
ASoC: Intel: sof_sdw: Add quirk for Asus Zenbook S16
ASoC: codecs:lpass-wsa-macro: Fix logic of enabling vi channels
ASoC: codecs:lpass-wsa-macro: Fix vi feedback rate
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Add sanity checking to some test harness functions to help catch bugs
in the test code. This consists of checking the range of some arguments
and checking that reads from the dummy regmap succeed.
Most of the harness code already had sanity-checking but there were a
few places where it was missing or was assumed that the test could be
trusted to pass valid values.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20250416122422.783215-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add of_platform_default_populate() to stratix10-svc
driver as the firmware/svc node was moved out of soc.
This fixes the failed probing of child drivers of
svc node.
Cc: stable@vger.kernel.org
Fixes: 23c3ebed382a ("arm64: dts: socfpga: agilex: move firmware out of soc node")
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Mahesh Rao <mahesh.rao@intel.com>
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://lore.kernel.org/r/20250326115446.36123-1-dinguyen@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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The i.MX95 System manager exports SCMI CPU protocol for linux to manage
cpu cores. The driver is to use the cpu Protocol interface to
start, stop a cpu cores (eg, M7).
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Message-Id: <20250408-imx-lmm-cpu-v4-6-4c5f4a456e49@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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The i.MX95 System manager exports SCMI LMM protocol for linux to manage
Logical Machines. The driver is to use the LMM Protocol interface to
boot, shutdown a LM.
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Message-Id: <20250408-imx-lmm-cpu-v4-5-4c5f4a456e49@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Merge series from Richard Fitzgerald <rf@opensource.cirrus.com>:
This series fixes the KConfig for cs_dsp and cs-amp-lib tests so that
CONFIG_KUNIT_ALL_TESTS doesn't cause them to add modules to the build.
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This protocol allows an agent to start, stop a CPU or set reset vector. It
is used to manage auxiliary CPUs in an LM (e.g. additional cores in an AP
cluster).
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Message-Id: <20250408-imx-lmm-cpu-v4-4-4c5f4a456e49@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Add Logical Machine Management(LMM) protocol which is intended for boot,
shutdown, and reset of other logical machines (LM). It is usually used to
allow one LM to manager another used as an offload or accelerator engine.
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Message-Id: <20250408-imx-lmm-cpu-v4-3-4c5f4a456e49@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Add i.MX95 Logical Machine Management and CPU Protocol documentation.
Reviewed-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Message-Id: <20250408-imx-lmm-cpu-v4-1-4c5f4a456e49@nxp.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Provide a couple of additional debugfs entries to enable polling-mode on
the waiting path of injected messages: message_poll will cause the system
to poll while waiting for the reply, while message_poll_async will send an
asynchronous message, as usual, and will use polling mode for the immediate
synchronous part of the async command.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Message-Id: <20250310180811.1463539-1-cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Transport devices are currently being unintentionally matched to
drivers with the same name, allowing their probe function to be
invoked. However, the bus notifier prevents them from setting up
handles, rendering them unable to utilize SCMI core functionality.
Instead of relying on the bus notifier which can't prevent bus matching
even if it returns early or error, move the check into the bus matching
logic itself. This change ensures that transport devices are entirely
excluded from driver matching, preventing any unintended probe attempts.
Message-Id: <20250317-b4-scmi_minor_cleanup-v2-5-f4be99bd9864@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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With the decoupling of transport drivers from the SCMI core, the
"arm-scmi" platform device is now created dynamically from the probed
transport driver.
Currently, this "arm-scmi" platform device is added to the root of
the platform bus since no parent is assigned. However, the transport
platform device, created from the "firmware:scmi" node in the device
tree, should be considered its parent.
Ensure that the parent device is correctly set for the "arm-scmi"
platform device, aligning it with the correct transport hierarchy.
This will be more useful on systems with multiple transport and/or
SCMI firmware instances as the hierarchy is maintained correctly.
Message-Id: <20250317-b4-scmi_minor_cleanup-v2-4-f4be99bd9864@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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single helper
Refactors the error logging related to SCMI device creation. The goal
is to remove duplicated error-handling code and centralize it into a
single helper function: _scmi_device_create().
By doing so, any code redundancy around error logging is avoided, as
error logging during device creation will now be handled by a unified
helper function.
Message-Id: <20250317-b4-scmi_minor_cleanup-v2-3-f4be99bd9864@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Currently, the device matching logic is duplicated in two functions:
- scmi_dev_match() used by the scmi_bus to match scmi_devices with
scmi_drivers.
- scmi_child_dev_find() used to check for the presence of a device
with the same name and protocol_id to avoid adding duplicates to
the bus.
Refactor the code to eliminate the redundant matching logic and
consolidates the functionality for better maintainability and efficiency.
Message-Id: <20250317-b4-scmi_minor_cleanup-v2-2-f4be99bd9864@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Currently, devices without a name in the id_table cannot register drivers,
and no scmi_device is created without a name via scmi_device_create().
However, the function __scmi_device_create() allows devices with no name,
which are then labeled as "unknown."
Removes support for matching scmi_device instances without a name,
ensuring consistency across the driver registration and probing process.
Message-Id: <20250317-b4-scmi_minor_cleanup-v2-1-f4be99bd9864@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
drm-misc-next for v6.16-rc1:
UAPI Changes:
- Add ASAHI uapi header!
- Add apple fourcc modifiers.
- Add capset virtio definitions to UAPI.
- Extend EXPORT_SYNC_FILE for timeline syncobjs.
Cross-subsystem Changes:
- Adjust DMA-BUF sg handling to not cache map on attach.
- Update drm/ci, hlcdc, virtio, maintainers.
- Update fbdev todo.
- Allow setting dma-device for dma-buf import.
- Export efi_mem_desc_lookup to make efidrm build as a module.
Core Changes:
- Update drm scheduler docs.
- Use the correct resv object in TTM delayed destroy.
- Fix compiler warning with panic qr code, and other small fixes.
- drm/ci updates.
- Add debugfs file for listing all bridges.
- Small fixes to drm/client, ttm tests.
- Add documentation to display/hdmi.
- Add kunit tests for bridges.
- Dont fail managed device probing if connector polling fails.
- Create Kconfig.debug for drm core.
- Add tests for the drm scheduler.
- Add and use new access helpers for DPCPD.
- Add generic and optimized conversions for format-helper.
- Begin refcounting panel for improving lifetime handling.
- Unify simpledrm and ofdrm sysfb, and add extra features.
- Split hdmi audio in bridge to make DP audio work.
Driver Changes:
- Convert drivers to use devm_platform_ioremap_resource().
- Assorted small fixes to imx/legacy-bridg, gma500, pl111, nouveau, vc4,
vmwgfx, ast, mxsfb, xlnx, accel/qaic, v3d, bridge/imx8qxp-ldb, ofdrm,
bridge/fsl-ldb, udl, bridge/ti-sn65dsi86, bridge/anx7625, cirrus-qemu,
bridge/cdns-dsi, panel/sharp, panel/himax, bridge/sil902x, renesas,
imagination, various panels.
- Allow attaching more display to vkms.
- Add Powertip PH128800T004-ZZA01 panel.
- Add rotation quirk for ZOTAC panel.
- Convert bridge/tc358775 to atomic.
- Remove deprecated panel calls from synaptics, novatek, samsung panels.
- Refactor shmem helper page pinning and accel drivers using it.
- Add dmabuf support to accel/amdxdna.
- Use 4k page table format for panfrost/mediatek.
- Add common powerup/down dp link helper and use it.
- Assorted compiler warning fixes.
- Support dma-buf import for renesas
Signed-off-by: Dave Airlie <airlied@redhat.com>
# Conflicts:
# include/drm/drm_kunit_helpers.h
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://lore.kernel.org/r/e147ff95-697b-4067-9e2e-7cbd424e162a@linux.intel.com
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FW_CS_DSP gets enabled if KUNIT is enabled. The test should rather
depend on if the feature is enabled. Fix this by moving FW_CS_DSP to the
depends on clause.
Fixes: dd0b6b1f29b9 ("firmware: cs_dsp: Add KUnit testing of bin file download")
Signed-off-by: Nico Pache <npache@redhat.com>
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20250411123608.1676462-4-rf@opensource.cirrus.com
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Call cs_dsp_mock_xm_header_get_fw_version() to get the firmware version
from the dummy XM header data in cs_dsp_bin_err_test_common_init().
Make the same change to cs_dsp_bin_test_common_init() and remove the
cs_dsp_mock_xm_header_get_fw_version_from_regmap() function.
The code in cs_dsp_test_bin.c was correctly calling
cs_dsp_mock_xm_header_get_fw_version_from_regmap() to fetch the fw version
from a dummy header it wrote to XM registers. However in
cs_dsp_test_bin_error.c the test doesn't stuff a dummy header into XM, it
populates it the normal way using a wmfw file. It should have called
cs_dsp_mock_xm_header_get_fw_version() to get the data from its blob
buffer, but was calling cs_dsp_mock_xm_header_get_fw_version_from_regmap().
As nothing had been written to the registers this returned the value of
uninitialized data.
The only other use of cs_dsp_mock_xm_header_get_fw_version_from_regmap()
was cs_dsp_test_bin.c, but it doesn't need to use it. It already has a
blob buffer containing the dummy XM header so it can use
cs_dsp_mock_xm_header_get_fw_version() to read from that.
Fixes: cd8c058499b6 ("firmware: cs_dsp: Add KUnit testing of bin error cases")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20250410132129.1312541-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Building efidrm as module requires efi_mem_desc_lookup(). Export
the symbol.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20250408091837.407401-2-tzimmermann@suse.de
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Pull kvm fixes from Paolo Bonzini:
"ARM:
- Rework heuristics for resolving the fault IPA (HPFAR_EL2 v. re-walk
stage-1 page tables) to align with the architecture. This avoids
possibly taking an SEA at EL2 on the page table walk or using an
architecturally UNKNOWN fault IPA
- Use acquire/release semantics in the KVM FF-A proxy to avoid
reading a stale value for the FF-A version
- Fix KVM guest driver to match PV CPUID hypercall ABI
- Use Inner Shareable Normal Write-Back mappings at stage-1 in KVM
selftests, which is the only memory type for which atomic
instructions are architecturally guaranteed to work
s390:
- Don't use %pK for debug printing and tracepoints
x86:
- Use a separate subclass when acquiring KVM's per-CPU posted
interrupts wakeup lock in the scheduled out path, i.e. when adding
a vCPU on the list of vCPUs to wake, to workaround a false positive
deadlock. The schedule out code runs with a scheduler lock that the
wakeup handler takes in the opposite order; but it does so with
IRQs disabled and cannot run concurrently with a wakeup
- Explicitly zero-initialize on-stack CPUID unions
- Allow building irqbypass.ko as as module when kvm.ko is a module
- Wrap relatively expensive sanity check with KVM_PROVE_MMU
- Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses
selftests:
- Add more scenarios to the MONITOR/MWAIT test
- Add option to rseq test to override /dev/cpu_dma_latency
- Bring list of exit reasons up to date
- Cleanup Makefile to list once tests that are valid on all
architectures
Other:
- Documentation fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (26 commits)
KVM: arm64: Use acquire/release to communicate FF-A version negotiation
KVM: arm64: selftests: Explicitly set the page attrs to Inner-Shareable
KVM: arm64: selftests: Introduce and use hardware-definition macros
KVM: VMX: Use separate subclasses for PI wakeup lock to squash false positive
KVM: VMX: Assert that IRQs are disabled when putting vCPU on PI wakeup list
KVM: x86: Explicitly zero-initialize on-stack CPUID unions
KVM: Allow building irqbypass.ko as as module when kvm.ko is a module
KVM: x86/mmu: Wrap sanity check on number of TDP MMU pages with KVM_PROVE_MMU
KVM: selftests: Add option to rseq test to override /dev/cpu_dma_latency
KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses
Documentation: kvm: remove KVM_CAP_MIPS_TE
Documentation: kvm: organize capabilities in the right section
Documentation: kvm: fix some definition lists
Documentation: kvm: drop "Capability" heading from capabilities
Documentation: kvm: give correct name for KVM_CAP_SPAPR_MULTITCE
Documentation: KVM: KVM_GET_SUPPORTED_CPUID now exposes TSC_DEADLINE
selftests: kvm: list once tests that are valid on all architectures
selftests: kvm: bring list of exit reasons up to date
selftests: kvm: revamp MONITOR/MWAIT tests
KVM: arm64: Don't translate FAR if invalid/unsafe
...
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Completion of the FFA_PARTITION_INFO_GET ABI transfers the ownership of
the caller’s Rx buffer from the producer(typically partition mnager) to
the consumer(this driver/OS). FFA_RX_RELEASE transfers the ownership
from the consumer back to the producer.
However, when we set the flag to just return the count of partitions
deployed in the system corresponding to the specified UUID while
invoking FFA_PARTITION_INFO_GET, the Rx buffer ownership shouldn't be
transferred to this driver. We must be able to skip transferring back
the ownership to the partition manager when we request just to get the
count of the partitions as the buffers are not acquired in this case.
Firmware may return FFA_RET_DENIED or other error for the ffa_rx_release()
in such cases.
Fixes: bb1be7498500 ("firmware: arm_ffa: Add v1.1 get_partition_info support")
Message-Id: <20250321115700.3525197-1-sudeep.holla@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Polling mode transactions wait for a reply busy-looping without holding a
spinlock, but currently the timeout checks are based only on elapsed time:
as a result we could hit a false positive whenever our busy-looping thread
is pre-empted and scheduled out for a time greater than the polling
timeout.
Change the checks at the end of the busy-loop to make sure that the polling
wasn't indeed successful or an out-of-order reply caused the polling to be
forcibly terminated.
Fixes: 31d2f803c19c ("firmware: arm_scmi: Add sync_cmds_completed_on_ret transport flag")
Reported-by: Huangjie <huangjie1663@phytium.com.cn>
Closes: https://lore.kernel.org/arm-scmi/20250123083323.2363749-1-jackhuang021@gmail.com/
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Cc: stable@vger.kernel.org # 5.18.x
Message-Id: <20250310175800.1444293-1-cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Using device_find_child() to lookup the proper SCMI device to destroy
causes an unbalance in device refcount, since device_find_child() calls an
implicit get_device(): this, in turns, inhibits the call of the provided
release methods upon devices destruction.
As a consequence, one of the structures that is not freed properly upon
destruction is the internal struct device_private dev->p populated by the
drivers subsystem core.
KMemleak detects this situation since loading/unloding some SCMI driver
causes related devices to be created/destroyed without calling any
device_release method.
unreferenced object 0xffff00000f583800 (size 512):
comm "insmod", pid 227, jiffies 4294912190
hex dump (first 32 bytes):
00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N..........
ff ff ff ff ff ff ff ff 60 36 1d 8a 00 80 ff ff ........`6......
backtrace (crc 114e2eed):
kmemleak_alloc+0xbc/0xd8
__kmalloc_cache_noprof+0x2dc/0x398
device_add+0x954/0x12d0
device_register+0x28/0x40
__scmi_device_create.part.0+0x1bc/0x380
scmi_device_create+0x2d0/0x390
scmi_create_protocol_devices+0x74/0xf8
scmi_device_request_notifier+0x1f8/0x2a8
notifier_call_chain+0x110/0x3b0
blocking_notifier_call_chain+0x70/0xb0
scmi_driver_register+0x350/0x7f0
0xffff80000a3b3038
do_one_initcall+0x12c/0x730
do_init_module+0x1dc/0x640
load_module+0x4b20/0x5b70
init_module_from_file+0xec/0x158
$ ./scripts/faddr2line ./vmlinux device_add+0x954/0x12d0
device_add+0x954/0x12d0:
kmalloc_noprof at include/linux/slab.h:901
(inlined by) kzalloc_noprof at include/linux/slab.h:1037
(inlined by) device_private_init at drivers/base/core.c:3510
(inlined by) device_add at drivers/base/core.c:3561
Balance device refcount by issuing a put_device() on devices found via
device_find_child().
Reported-by: Alice Ryhl <aliceryhl@google.com>
Closes: https://lore.kernel.org/linux-arm-kernel/Z8nK3uFkspy61yjP@arm.com/T/#mc1f73a0ea5e41014fa145147b7b839fc988ada8f
CC: Sudeep Holla <sudeep.holla@arm.com>
CC: Catalin Marinas <catalin.marinas@arm.com>
Fixes: d4f9dddd21f3 ("firmware: arm_scmi: Add dynamic scmi devices creation")
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Tested-by: Alice Ryhl <aliceryhl@google.com>
Message-Id: <20250306185447.2039336-1-cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
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Backmerging to get v6.15-rc1 into drm-misc-next. Also fixes a
build issue when enabling CONFIG_DRM_SCHED_KUNIT_TEST.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
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Move the calculation of the bits per pixels for screen_info into a
helper function. This will make it available to other callers besides
the firmware code.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20250401094056.32904-14-tzimmermann@suse.de
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We need to access the PMIC during late system shutdown and at that time
we are not allowed to sleep anymore.
To make this case work, and since we can't detect this case in a
non-racy way, switch to using udelay() unconditionally, instead of
usleep_range().
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250325-acpm-atomic-v3-2-c66aae7df925@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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acpm_dequeue_by_polling() uses a loop counter and assumes that each
iteration of the loop takes 20us. It may take longer, though, because
usleep_range() may sleep a different amount.
Switch to using ktime_get() / ktime_before() to detect the timeout
condition more reliably.
This change also makes the code easier to follow and it allows us to
adjust the sleep if necessary, without having to adjust the loop
counter exit condition.
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250325-acpm-atomic-v3-1-c66aae7df925@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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When we're polling for responses and get a response that corresponds to
another request, we save the RX data in order to drain the RX queue.
If the response for the current request is not found in the request's
iteration of the queue, or if the queue is empty, we must check whether
the RX data was saved by a previous request when it drained the RX queue.
We failed to check for already saved responses when the queue was empty,
and requests could time out. Check saved RX before bailing out on empty
RX queue.
Fixes: a88927b534ba ("firmware: add Exynos ACPM protocol driver")
Reported-by: André Draszik <andre.draszik@linaro.org>
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Reviewed-by: André Draszik <andre.draszik@linaro.org>
Tested-by: André Draszik <andre.draszik@linaro.org>
Link: https://lore.kernel.org/r/20250324-acpm-drained-rx-queue-v1-1-577774335151@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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startup/
Linus expressed a strong preference for arch-specific asm code (i.e.,
virtually all of it) to reside under arch/ rather than anywhere else.
So move the EFI mixed mode startup code back, and put it under
arch/x86/boot/startup/ where all shared x86 startup code is going to
live.
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20250401133416.1436741-11-ardb+git@google.com
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timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree
over and remove the historical wrapper inlines.
Conversion was done with coccinelle plus manual fixups where necessary.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of device-specific fixes that have been gathered since
the previous pull:
- A few more HD-audio quirks and fixups
- A series of Qualcomm AudioReach fixes
- Various small fixes for ASoC rt5665, WSA, SOF and Cirrus"
* tag 'sound-fix-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/realtek: Fix built-in mic on another ASUS VivoBook model
ALSA: hda/realtek - Support mute led function for HP platform
ASoC: imx-card: Add NULL check in imx_card_probe()
ASoC: codecs: rt5665: Fix some error handling paths in rt5665_probe()
ASoC: q6apm-dai: make use of q6apm_get_hw_pointer
ASoC: qdsp6: q6apm-dai: fix capture pipeline overruns.
ASoC: qdsp6: q6apm-dai: set 10 ms period and buffer alignment.
ASoC: q6apm: add q6apm_get_hw_pointer helper
ASoC: q6apm-dai: schedule all available frames to avoid dsp under-runs
ASoC: SOF: hda/ptl: Move mic privacy change notification sending to a work
ALSA/hda: intel-sdw-acpi: Remove (explicitly) unused header
ALSA: hda/realtek: Enable Mute LED on HP OMEN 16 Laptop xd000xx
ALSA: hda/tas2781: Upgrade calibratd-data writing code to support Alpha and Beta dsp firmware
ASoC: qdsp6: q6asm-dai: fix q6asm_dai_compr_set_params error path
ALSA: hda/realtek: Fix built-in mic breakage on ASUS VivoBook X515JA
ASoC: sma1307: Fix error handling in sma1307_setting_loaded()
ASoC: codecs: wsa884x: Correct VI sense channel mask
ASoC: codecs: wsa883x: Correct VI sense channel mask
firmware: cs_dsp: Ensure cs_dsp_load[_coeff]() returns 0 on success
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git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl
Pull Compute Express Link (CXL) updates from Dave Jiang:
- Add support for Global Persistent Flush (GPF)
- Cleanup of DPA partition metadata handling:
- Remove the CXL_DECODER_MIXED enum that's not needed anymore
- Introduce helpers to access resource and perf meta data
- Introduce 'struct cxl_dpa_partition' and 'struct cxl_range_info'
- Make cxl_dpa_alloc() DPA partition number agnostic
- Remove cxl_decoder_mode
- Cleanup partition size and perf helpers
- Remove unused CXL partition values
- Add logging support for CXL CPER endpoint and port protocol errors:
- Prefix protocol error struct and function names with cxl_
- Move protocol error definitions and structures to a common location
- Remove drivers/firmware/efi/cper_cxl.h to include/linux/cper.h
- Add support in GHES to process CXL CPER protocol errors
- Process CXL CPER protocol errors
- Add trace logging for CXL PCIe port RAS errors
- Remove redundant gp_port init
- Add validation of cxl device serial number
- CXL ABI documentation updates/fixups
- A series that uses guard() to clean up open coded mutex lockings and
remove gotos for error handling.
- Some followup patches to support dirty shutdown accounting:
- Add helper to retrieve DVSEC offset for dirty shutdown registers
- Rename cxl_get_dirty_shutdown() to cxl_arm_dirty_shutdown()
- Add support for dirty shutdown count via sysfs
- cxl_test support for dirty shutdown
- A series to support CXL mailbox Features commands.
Mostly in preparation for CXL EDAC code to utilize the Features
commands. It's also in preparation for CXL fwctl support to utilize
the CXL Features. The commands include "Get Supported Features", "Get
Feature", and "Set Feature".
- A series to support extended linear cache support described by the
ACPI HMAT table.
The addition helps enumerate the cache and also provides additional
RAS reporting support for configuration with extended linear cache.
(and related fixes for the series).
- An update to cxl_test to support a 3-way capable CFMWS
- A documentation fix to remove unused "mixed mode"
* tag 'cxl-for-6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (39 commits)
cxl/region: Fix the first aliased address miscalculation
cxl/region: Quiet some dev_warn()s in extended linear cache setup
cxl/Documentation: Remove 'mixed' from sysfs mode doc
cxl: Fix warning from emitting resource_size_t as long long int on 32bit systems
cxl/test: Define a CFMWS capable of a 3 way HB interleave
cxl/mem: Do not return error if CONFIG_CXL_MCE unset
tools/testing/cxl: Set Shutdown State support
cxl/pmem: Export dirty shutdown count via sysfs
cxl/pmem: Rename cxl_dirty_shutdown_state()
cxl/pci: Introduce cxl_gpf_get_dvsec()
cxl/pci: Support Global Persistent Flush (GPF)
cxl: Document missing sysfs files
cxl: Plug typos in ABI doc
cxl/pmem: debug invalid serial number data
cxl/cdat: Remove redundant gp_port initialization
cxl/memdev: Remove unused partition values
cxl/region: Drop goto pattern of construct_region()
cxl/region: Drop goto pattern in cxl_dax_region_alloc()
cxl/core: Use guard() to drop goto pattern of cxl_dpa_alloc()
cxl/core: Use guard() to drop the goto pattern of cxl_dpa_free()
...
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Remove unnecessary semicolons reported by Coccinelle/coccicheck and the
semantic patch at scripts/coccinelle/misc/semicolon.cocci.
Signed-off-by: Chen Ni <nichen@iscas.ac.cn>
Link: https://lore.kernel.org/r/20250326040659.1190696-1-nichen@iscas.ac.cn
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updatesk from Greg KH:
"Here is the big set of driver core updates for 6.15-rc1. Lots of stuff
happened this development cycle, including:
- kernfs scaling changes to make it even faster thanks to rcu
- bin_attribute constify work in many subsystems
- faux bus minor tweaks for the rust bindings
- rust binding updates for driver core, pci, and platform busses,
making more functionaliy available to rust drivers. These are all
due to people actually trying to use the bindings that were in
6.14.
- make Rafael and Danilo full co-maintainers of the driver core
codebase
- other minor fixes and updates"
* tag 'driver-core-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (52 commits)
rust: platform: require Send for Driver trait implementers
rust: pci: require Send for Driver trait implementers
rust: platform: impl Send + Sync for platform::Device
rust: pci: impl Send + Sync for pci::Device
rust: platform: fix unrestricted &mut platform::Device
rust: pci: fix unrestricted &mut pci::Device
rust: device: implement device context marker
rust: pci: use to_result() in enable_device_mem()
MAINTAINERS: driver core: mark Rafael and Danilo as co-maintainers
rust/kernel/faux: mark Registration methods inline
driver core: faux: only create the device if probe() succeeds
rust/faux: Add missing parent argument to Registration::new()
rust/faux: Drop #[repr(transparent)] from faux::Registration
rust: io: fix devres test with new io accessor functions
rust: io: rename `io::Io` accessors
kernfs: Move dput() outside of the RCU section.
efi: rci2: mark bin_attribute as __ro_after_init
rapidio: constify 'struct bin_attribute'
firmware: qemu_fw_cfg: constify 'struct bin_attribute'
powerpc/perf/hv-24x7: Constify 'struct bin_attribute'
...
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The ABI of the hypercall requires that R2 and R3 are 0. Explicitly pass
0 for these parameters.
Cc: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Fixes: 86edf6bdcf05 ("smccc/kvm_guest: Enable errata based on implementation CPUs")
Reviewed-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Link: https://lore.kernel.org/r/20250327163613.2516073-1-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
- Decouple mixed mode startup code from the traditional x86
decompressor
- Revert zero-length file hack in efivarfs
- Prevent EFI zboot from using the CopyMem/SetMem boot services after
ExitBootServices()
- Update EFI zboot to use the ZLIB/ZSTD library interfaces directly
* tag 'efi-next-for-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi/libstub: Avoid legacy decompressor zlib/zstd wrappers
efi/libstub: Avoid CopyMem/SetMem EFI services after ExitBootServices
efi: efibc: change kmalloc(size * count, ...) to kmalloc_array()
efivarfs: Revert "allow creation of zero length files"
x86/efi/mixed: Move mixed mode startup code into libstub
x86/efi/mixed: Simplify and document thunking logic
x86/efi/mixed: Remove dependency on legacy startup_32 code
x86/efi/mixed: Set up 1:1 mapping of lower 4GiB in the stub
x86/efi/mixed: Factor out and clean up long mode entry
x86/efi/mixed: Check CPU compatibility without relying on verify_cpu()
x86/efistub: Merge PE and handover entrypoints
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull SoC driver updates from Arnd Bergmann:
"These are the updates for SoC specific drivers and related subsystems:
- Firmware driver updates for SCMI, FF-A and SMCCC firmware
interfaces, adding support for additional firmware features
including SoC identification and FF-A SRI callbacks as well as
various bugfixes
- Memory controller updates for Nvidia and Mediatek
- Reset controller support for microchip sam9x7 and imx8qxp/imx8qm
- New hardware support for multiple Mediatek, Renesas and Samsung
Exynos chips
- Minor updates on Zynq, Qualcomm, Amlogic, TI, Samsung, Nvidia and
Apple chips
There will be a follow up with a few more driver updates that are
still causing build regressions at the moment"
* tag 'soc-drivers-6.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (97 commits)
irqchip: Add support for Amlogic A4 and A5 SoCs
dt-bindings: interrupt-controller: Add support for Amlogic A4 and A5 SoCs
reset: imx: fix incorrect module device table
dt-bindings: power: qcom,kpss-acc-v2: add qcom,msm8916-acc compatible
bus: qcom-ssc-block-bus: Fix the error handling path of qcom_ssc_block_bus_probe()
bus: qcom-ssc-block-bus: Remove some duplicated iounmap() calls
soc: qcom: pd-mapper: Add support for SDM630/636
reset: imx: Add SCU reset driver for i.MX8QXP and i.MX8QM
dt-bindings: firmware: imx: add property reset-controller
dt-bindings: reset: atmel,at91sam9260-reset: add sam9x7
memory: mtk-smi: Add ostd setting for mt8192
dt-bindings: soc: samsung: exynos-usi: Drop unnecessary status from example
firmware: tegra: bpmp: Fix typo in bpmp-abi.h
soc/tegra: pmc: Use str_enable_disable-like helpers
soc: samsung: include linux/array_size.h where needed
firmware: arm_scmi: use ioread64() instead of ioread64_hi_lo()
soc: mediatek: mtk-socinfo: Add extra entry for MT8395AV/ZA Genio 1200
soc: mediatek: mt8188-mmsys: Add support for DSC on VDO0
soc: mediatek: mmsys: Migrate all tables to MMSYS_ROUTE() macro
soc: mediatek: mt8365-mmsys: Fix routing table masks and values
...
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"We've received lots of commits at this time, as a result of various
cleanup and refactoring works as well as a few new drivers and the
generic SoundWire support. Most of changes are device-specific, little
about the core changes. Some highlights below:
Core:
- A couple of (rather minor) race fixes in ALSA sequencer code
- A regression fix in ALSA timer code that may lead to a deadlock
ASoC:
- A large series of code conversion to use modern terminology for the
clocking configuration
- Conversions of PM ops with the modern macros in all ASoC drivers
- Clarification of the control operations
- Prepartory work for more generic SoundWire SCDA controls
- Support for AMD ACP 7.x, AWINC WM88166, Everest ES8388, Intel AVS
PEAKVOL and GAIN DSP modules Mediatek MT8188 DMIC, NXP i.MX95,
nVidia Tegra interconnects, Rockchip RK3588 S/PDIF, Texas
Instruments SN012776 and TAS5770L, and Wolfson WM8904 DMICs
Others:
- Conversions of PM ops with the modern macros in the rest drivers
- USB-audio quirks and fixes for Presonus Studio, DJM-A9, CME
- HD-audio quirks and fixes ASUS, HP, Lenovo, and others"
* tag 'sound-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (651 commits)
ALSA: hda: tas2781-i2c: Remove unnecessary NULL check before release_firmware()
ALSA: hda: cs35l56: Remove unnecessary NULL check before release_firmware()
ALSA: hda/realtek: Bass speaker fixup for ASUS UM5606KA
ALSA: hda/realtek: Fix built-in mic assignment on ASUS VivoBook X515UA
ALSA: hda/realtek: Add support for various HP Laptops using CS35L41 HDA
ALSA: timer: Don't take register_mutex with copy_from/to_user()
ASoC: SDCA: Correct handling of selected mode DisCo property
ASoC: amd: yc: update quirk data for new Lenovo model
ALSA: hda/realtek: fix micmute LEDs on HP Laptops with ALC3247
ALSA: hda/realtek: fix micmute LEDs on HP Laptops with ALC3315
ASoC: SOF: mediatek: Commonize duplicated functions
ASoC: dmic: Fix NULL pointer dereference
ASoC: wm8904: add DMIC support
ASoC: wm8904: get platform data from DT
ASoC: dt-bindings: wm8904: Add DMIC, GPIO, MIC and EQ support
ASoC: wm8904: Don't touch GPIO configs set to 0xFFFF
of: Add of_property_read_u16_index
ALSA: oxygen: Fix dependency on CONFIG_PM_SLEEP
ASoC: ops: Apply platform_max after deciding control type
ASoC: ops: Remove some unnecessary local variables
...
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm
Pull pmdomain updates from Ulf Hansson:
"pmdomain core:
- Add dev_pm_genpd_rpm_always_on() to support more fine-grained PM
pmdomain providers:
- arm: Remove redundant state verification for the SCMI PM domain
- bcm: Add system-wakeup support for bcm2835 via GENPD_FLAG_ACTIVE_WAKEUP
- rockchip: Add support for regulators
- rockchip: Use SMC call to properly inform firmware
- sunxi: Add V853 ppu support
- thead: Add support for RISC-V TH1520 power-domains
firmware:
- Add support for the AON firmware protocol for RISC-V THEAD
cpuidle-psci:
- Update section in MAINTAINERS for cpuidle-psci
- Add trace support for PSCI domain-idlestates"
* tag 'pmdomain-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm: (29 commits)
firmware: thead: add CONFIG_MAILBOX dependency
firmware: thead,th1520-aon: Fix use after free in th1520_aon_init()
pmdomain: arm: scmi_pm_domain: Remove redundant state verification
pmdomain: thead: fix TH1520_AON_PROTOCOL dependency
pmdomain: thead: Add power-domain driver for TH1520
dt-bindings: power: Add TH1520 SoC power domains
firmware: thead: Add AON firmware protocol driver
dt-bindings: firmware: thead,th1520: Add support for firmware node
pmdomain: rockchip: add regulator dependency
pmdomain: rockchip: add regulator support
pmdomain: rockchip: fix rockchip_pd_power error handling
pmdomain: rockchip: reduce indentation in rockchip_pd_power
pmdomain: rockchip: forward rockchip_do_pmu_set_power_domain errors
pmdomain: rockchip: cleanup mutex handling in rockchip_pd_power
dt-bindings: power: rockchip: add regulator support
pmdomain: rockchip: Fix build error
pmdomain: imx: gpcv2: use proper helper for property detection
MAINTAINERS: Update section for cpuidle-psci
pmdomain: rockchip: Check if SMC could be handled by TA
cpuidle: psci: Add trace for PSCI domain idle
...
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Pull kvm updates from Paolo Bonzini:
"ARM:
- Nested virtualization support for VGICv3, giving the nested
hypervisor control of the VGIC hardware when running an L2 VM
- Removal of 'late' nested virtualization feature register masking,
making the supported feature set directly visible to userspace
- Support for emulating FEAT_PMUv3 on Apple silicon, taking advantage
of an IMPLEMENTATION DEFINED trap that covers all PMUv3 registers
- Paravirtual interface for discovering the set of CPU
implementations where a VM may run, addressing a longstanding issue
of guest CPU errata awareness in big-little systems and
cross-implementation VM migration
- Userspace control of the registers responsible for identifying a
particular CPU implementation (MIDR_EL1, REVIDR_EL1, AIDR_EL1),
allowing VMs to be migrated cross-implementation
- pKVM updates, including support for tracking stage-2 page table
allocations in the protected hypervisor in the 'SecPageTable' stat
- Fixes to vPMU, ensuring that userspace updates to the vPMU after
KVM_RUN are reflected into the backing perf events
LoongArch:
- Remove unnecessary header include path
- Assume constant PGD during VM context switch
- Add perf events support for guest VM
RISC-V:
- Disable the kernel perf counter during configure
- KVM selftests improvements for PMU
- Fix warning at the time of KVM module removal
x86:
- Add support for aging of SPTEs without holding mmu_lock.
Not taking mmu_lock allows multiple aging actions to run in
parallel, and more importantly avoids stalling vCPUs. This includes
an implementation of per-rmap-entry locking; aging the gfn is done
with only a per-rmap single-bin spinlock taken, whereas locking an
rmap for write requires taking both the per-rmap spinlock and the
mmu_lock.
Note that this decreases slightly the accuracy of accessed-page
information, because changes to the SPTE outside aging might not
use atomic operations even if they could race against a clear of
the Accessed bit.
This is deliberate because KVM and mm/ tolerate false
positives/negatives for accessed information, and testing has shown
that reducing the latency of aging is far more beneficial to
overall system performance than providing "perfect" young/old
information.
- Defer runtime CPUID updates until KVM emulates a CPUID instruction,
to coalesce updates when multiple pieces of vCPU state are
changing, e.g. as part of a nested transition
- Fix a variety of nested emulation bugs, and add VMX support for
synthesizing nested VM-Exit on interception (instead of injecting
#UD into L2)
- Drop "support" for async page faults for protected guests that do
not set SEND_ALWAYS (i.e. that only want async page faults at CPL3)
- Bring a bit of sanity to x86's VM teardown code, which has
accumulated a lot of cruft over the years. Particularly, destroy
vCPUs before the MMU, despite the latter being a VM-wide operation
- Add common secure TSC infrastructure for use within SNP and in the
future TDX
- Block KVM_CAP_SYNC_REGS if guest state is protected. It does not
make sense to use the capability if the relevant registers are not
available for reading or writing
- Don't take kvm->lock when iterating over vCPUs in the suspend
notifier to fix a largely theoretical deadlock
- Use the vCPU's actual Xen PV clock information when starting the
Xen timer, as the cached state in arch.hv_clock can be stale/bogus
- Fix a bug where KVM could bleed PVCLOCK_GUEST_STOPPED across
different PV clocks; restrict PVCLOCK_GUEST_STOPPED to kvmclock, as
KVM's suspend notifier only accounts for kvmclock, and there's no
evidence that the flag is actually supported by Xen guests
- Clean up the per-vCPU "cache" of its reference pvclock, and instead
only track the vCPU's TSC scaling (multipler+shift) metadata (which
is moderately expensive to compute, and rarely changes for modern
setups)
- Don't write to the Xen hypercall page on MSR writes that are
initiated by the host (userspace or KVM) to fix a class of bugs
where KVM can write to guest memory at unexpected times, e.g.
during vCPU creation if userspace has set the Xen hypercall MSR
index to collide with an MSR that KVM emulates
- Restrict the Xen hypercall MSR index to the unofficial synthetic
range to reduce the set of possible collisions with MSRs that are
emulated by KVM (collisions can still happen as KVM emulates
Hyper-V MSRs, which also reside in the synthetic range)
- Clean up and optimize KVM's handling of Xen MSR writes and
xen_hvm_config
- Update Xen TSC leaves during CPUID emulation instead of modifying
the CPUID entries when updating PV clocks; there is no guarantee PV
clocks will be updated between TSC frequency changes and CPUID
emulation, and guest reads of the TSC leaves should be rare, i.e.
are not a hot path
x86 (Intel):
- Fix a bug where KVM unnecessarily reads XFD_ERR from hardware and
thus modifies the vCPU's XFD_ERR on a #NM due to CR0.TS=1
- Pass XFD_ERR as the payload when injecting #NM, as a preparatory
step for upcoming FRED virtualization support
- Decouple the EPT entry RWX protection bit macros from the EPT
Violation bits, both as a general cleanup and in anticipation of
adding support for emulating Mode-Based Execution Control (MBEC)
- Reject KVM_RUN if userspace manages to gain control and stuff
invalid guest state while KVM is in the middle of emulating nested
VM-Enter
- Add a macro to handle KVM's sanity checks on entry/exit VMCS
control pairs in anticipation of adding sanity checks for secondary
exit controls (the primary field is out of bits)
x86 (AMD):
- Ensure the PSP driver is initialized when both the PSP and KVM
modules are built-in (the initcall framework doesn't handle
dependencies)
- Use long-term pins when registering encrypted memory regions, so
that the pages are migrated out of MIGRATE_CMA/ZONE_MOVABLE and
don't lead to excessive fragmentation
- Add macros and helpers for setting GHCB return/error codes
- Add support for Idle HLT interception, which elides interception if
the vCPU has a pending, unmasked virtual IRQ when HLT is executed
- Fix a bug in INVPCID emulation where KVM fails to check for a
non-canonical address
- Don't attempt VMRUN for SEV-ES+ guests if the vCPU's VMSA is
invalid, e.g. because the vCPU was "destroyed" via SNP's AP
Creation hypercall
- Reject SNP AP Creation if the requested SEV features for the vCPU
don't match the VM's configured set of features
Selftests:
- Fix again the Intel PMU counters test; add a data load and do
CLFLUSH{OPT} on the data instead of executing code. The theory is
that modern Intel CPUs have learned new code prefetching tricks
that bypass the PMU counters
- Fix a flaw in the Intel PMU counters test where it asserts that an
event is counting correctly without actually knowing what the event
counts on the underlying hardware
- Fix a variety of flaws, bugs, and false failures/passes
dirty_log_test, and improve its coverage by collecting all dirty
entries on each iteration
- Fix a few minor bugs related to handling of stats FDs
- Add infrastructure to make vCPU and VM stats FDs available to tests
by default (open the FDs during VM/vCPU creation)
- Relax an assertion on the number of HLT exits in the xAPIC IPI test
when running on a CPU that supports AMD's Idle HLT (which elides
interception of HLT if a virtual IRQ is pending and unmasked)"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (216 commits)
RISC-V: KVM: Optimize comments in kvm_riscv_vcpu_isa_disable_allowed
RISC-V: KVM: Teardown riscv specific bits after kvm_exit
LoongArch: KVM: Register perf callbacks for guest
LoongArch: KVM: Implement arch-specific functions for guest perf
LoongArch: KVM: Add stub for kvm_arch_vcpu_preempted_in_kernel()
LoongArch: KVM: Remove PGD saving during VM context switch
LoongArch: KVM: Remove unnecessary header include path
KVM: arm64: Tear down vGIC on failed vCPU creation
KVM: arm64: PMU: Reload when resetting
KVM: arm64: PMU: Reload when user modifies registers
KVM: arm64: PMU: Fix SET_ONE_REG for vPMC regs
KVM: arm64: PMU: Assume PMU presence in pmu-emul.c
KVM: arm64: PMU: Set raw values from user to PM{C,I}NTEN{SET,CLR}, PMOVS{SET,CLR}
KVM: arm64: Create each pKVM hyp vcpu after its corresponding host vcpu
KVM: arm64: Factor out pKVM hyp vcpu creation to separate function
KVM: arm64: Initialize HCRX_EL2 traps in pKVM
KVM: arm64: Factor out setting HCRX_EL2 traps into separate function
KVM: x86: block KVM_CAP_SYNC_REGS if guest state is protected
KVM: x86: Add infrastructure for secure TSC
KVM: x86: Push down setting vcpu.arch.user_set_tsc
...
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Set ret = 0 on successful completion of the processing loop in
cs_dsp_load() and cs_dsp_load_coeff() to ensure that the function
returns 0 on success.
All normal firmware files will have at least one data block, and
processing this block will set ret == 0, from the result of either
regmap_raw_write() or cs_dsp_parse_coeff().
The kunit tests create a dummy firmware file that contains only the
header, without any data blocks. This gives cs_dsp a file to "load"
that will not cause any side-effects. As there aren't any data blocks,
the processing loop will not set ret == 0.
Originally there was a line after the processing loop:
ret = regmap_async_complete(regmap);
which would set ret == 0 before the function returned.
Commit fe08b7d5085a ("firmware: cs_dsp: Remove async regmap writes")
changed the regmap write to a normal sync write, so the call to
regmap_async_complete() wasn't necessary and was removed. It was
overlooked that the ret here wasn't only to check the result of
regmap_async_complete(), it also set the final return value of the
function.
Fixes: fe08b7d5085a ("firmware: cs_dsp: Remove async regmap writes")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://patch.msgid.link/20250323170529.197205-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add support for digital message signing with the private key stored in
the rWTM secure coprocessor. Turris Mox devices have an ECDSA private
key generated and burned into rWTM eFuses when manufactured. This
private key is not readable from the rWTM, but rWTM firmware allows for
signing messages with it and retrieving the public key.
This is exposed to userspace via the keyctl API.
User can find the key by either looking at /proc/keys or listing the
keyring:
$ cat /proc/keys
0240b221 ... keyring .turris-signing-keys: 1
34ff9ac9 ... turris-si Turris MOX SN 0000000D30000005 rWTM ECDSA ke...
$ keyctl rlist %:.turris-signing-keys
889166537
To get the public key:
$ keyctl read 889166537
67 bytes of data in key:
0201a05c 1a79242b 13f2fc02 b48ffdbb 6ee8d5ba 812d6784 5f04f302 c0894d3e
b93474f9 46235777 5c926fb4 cce89b50 88cf5d10 c07fd9c5 fdcea257 3d8f1c33
1bf826
To sign a message:
$ dd if=/dev/urandom of=msg_to_sign bs=64 count=1
$ keyctl pkey_sign 889166537 0 msg_to_sign >signature
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Drop the debugfs implementation of the ECDSA message signing, in
preparation for a new implementation via the keyctl() syscall.
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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soc/drivers
arm64: ZynqMP SoC changes for 6.15
- Align fpga config status with firmware
* tag 'zynqmp-soc-for-6.15' of https://github.com/Xilinx/linux-xlnx:
firmware: xilinx: Dont send linux address to get fpga config get status
Link: https://lore.kernel.org/r/CAHTX3d+T+_zvwAVqGO+J_+Yia+wXAGsaEbPi1ye1AUYXoq6dmw@mail.gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fixes from Ard Biesheuvel:
"Here's a final batch of EFI fixes for v6.14.
The efivarfs ones are fixes for changes that were made this cycle.
James's fix is somewhat of a band-aid, but it was blessed by the VFS
folks, who are working with James to come up with something better for
the next cycle.
- Avoid physical address 0x0 for random page allocations
- Add correct lockdep annotation when traversing efivarfs on resume
- Avoid NULL mount in kernel_file_open() when traversing efivarfs on
resume"
* tag 'efi-fixes-for-v6.14-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efivarfs: fix NULL dereference on resume
efivarfs: use I_MUTEX_CHILD nested lock to traverse variables on resume
efi/libstub: Avoid physical address 0x0 when doing random allocation
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* kvm-arm64/pv-cpuid:
: Paravirtualized implementation ID, courtesy of Shameer Kolothum
:
: Big-little has historically been a pain in the ass to virtualize. The
: implementation ID (MIDR, REVIDR, AIDR) of a vCPU can change at the whim
: of vCPU scheduling. This can be particularly annoying when the guest
: needs to know the underlying implementation to mitigate errata.
:
: "Hyperscalers" face a similar scheduling problem, where VMs may freely
: migrate between hosts in a pool of heterogenous hardware. And yes, our
: server-class friends are equally riddled with errata too.
:
: In absence of an architected solution to this wart on the ecosystem,
: introduce support for paravirtualizing the implementation exposed
: to a VM, allowing the VMM to describe the pool of implementations that a
: VM may be exposed to due to scheduling/migration.
:
: Userspace is expected to intercept and handle these hypercalls using the
: SMCCC filter UAPI, should it choose to do so.
smccc: kvm_guest: Fix kernel builds for 32 bit arm
KVM: selftests: Add test for KVM_REG_ARM_VENDOR_HYP_BMAP_2
smccc/kvm_guest: Enable errata based on implementation CPUs
arm64: Make _midr_in_range_list() an exported function
KVM: arm64: Introduce KVM_REG_ARM_VENDOR_HYP_BMAP_2
KVM: arm64: Specify hypercall ABI for retrieving target implementations
arm64: Modify _midr_range() functions to read MIDR/REVIDR internally
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
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https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux into soc/drivers
TI SoC driver updates for v6.15
- ti-sci: Default set to ARCH_K3 for the ti sci driver in preperation for
the driver to be default set as module in defconfig.
- k3-socinfo: Explicitly build up regmap instead of depending on syscon
helper
* tag 'ti-driver-soc-for-v6.15' of https://git.kernel.org/pub/scm/linux/kernel/git/ti/linux:
firmware: config: ti-sci: Default set to ARCH_K3 for the ti sci driver
soc: ti: k3-socinfo: Do not use syscon helper to build regmap
Link: https://lore.kernel.org/r/20250312113826.ka63nijuftgs6h52@mocker
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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