diff options
| author | Geoff Levand <geoff@infradead.org> | 2016-09-21 18:14:25 +0000 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2016-09-29 09:36:56 +0200 |
| commit | 522df5f7217fda01ece3f6ac3e9987b0320c2bb0 (patch) | |
| tree | 5886c37cd98e07de434cddc6c8d90fa6d9f13c9f /purgatory | |
| parent | 217bcc00c9309416a6c6cd0584196559d28a9259 (diff) | |
arm64: Add arm64 kexec support
Add kexec reboot support for ARM64 platforms.
Signed-off-by: Geoff Levand <geoff@infradead.org>
Tested-By: Pratyush Anand <panand@redhat.com>
Tested-By: Matthias Brugger <mbrugger@suse.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
Diffstat (limited to 'purgatory')
| -rw-r--r-- | purgatory/Makefile | 1 | ||||
| -rw-r--r-- | purgatory/arch/arm64/Makefile | 18 | ||||
| -rw-r--r-- | purgatory/arch/arm64/entry.S | 51 | ||||
| -rw-r--r-- | purgatory/arch/arm64/purgatory-arm64.c | 19 |
4 files changed, 89 insertions, 0 deletions
diff --git a/purgatory/Makefile b/purgatory/Makefile index 2b5c061..ca0443c 100644 --- a/purgatory/Makefile +++ b/purgatory/Makefile @@ -19,6 +19,7 @@ dist += purgatory/Makefile $(PURGATORY_SRCS) \ include $(srcdir)/purgatory/arch/alpha/Makefile include $(srcdir)/purgatory/arch/arm/Makefile +include $(srcdir)/purgatory/arch/arm64/Makefile include $(srcdir)/purgatory/arch/i386/Makefile include $(srcdir)/purgatory/arch/ia64/Makefile include $(srcdir)/purgatory/arch/mips/Makefile diff --git a/purgatory/arch/arm64/Makefile b/purgatory/arch/arm64/Makefile new file mode 100644 index 0000000..636abea --- /dev/null +++ b/purgatory/arch/arm64/Makefile @@ -0,0 +1,18 @@ + +arm64_PURGATORY_EXTRA_CFLAGS = \ + -mcmodel=large \ + -fno-stack-protector \ + -fno-asynchronous-unwind-tables \ + -Wundef \ + -Werror-implicit-function-declaration \ + -Wdeclaration-after-statement \ + -Werror=implicit-int \ + -Werror=strict-prototypes + +arm64_PURGATORY_SRCS += \ + purgatory/arch/arm64/entry.S \ + purgatory/arch/arm64/purgatory-arm64.c + +dist += \ + $(arm64_PURGATORY_SRCS) \ + purgatory/arch/arm64/Makefile diff --git a/purgatory/arch/arm64/entry.S b/purgatory/arch/arm64/entry.S new file mode 100644 index 0000000..adf16f4 --- /dev/null +++ b/purgatory/arch/arm64/entry.S @@ -0,0 +1,51 @@ +/* + * ARM64 purgatory. + */ + +.macro size, sym:req + .size \sym, . - \sym +.endm + +.text + +.globl purgatory_start +purgatory_start: + + adr x19, .Lstack + mov sp, x19 + + bl purgatory + + /* Start new image. */ + ldr x17, arm64_kernel_entry + ldr x0, arm64_dtb_addr + mov x1, xzr + mov x2, xzr + mov x3, xzr + br x17 + +size purgatory_start + +.ltorg + +.align 4 + .rept 256 + .quad 0 + .endr +.Lstack: + +.data + +.align 3 + +.globl arm64_kernel_entry +arm64_kernel_entry: + .quad 0 +size arm64_kernel_entry + +.globl arm64_dtb_addr +arm64_dtb_addr: + .quad 0 +size arm64_dtb_addr + +.end
\ No newline at end of file diff --git a/purgatory/arch/arm64/purgatory-arm64.c b/purgatory/arch/arm64/purgatory-arm64.c new file mode 100644 index 0000000..fe50fcf --- /dev/null +++ b/purgatory/arch/arm64/purgatory-arm64.c @@ -0,0 +1,19 @@ +/* + * ARM64 purgatory. + */ + +#include <stdint.h> +#include <purgatory.h> + +void putchar(int ch) +{ + /* Nothing for now */ +} + +void post_verification_setup_arch(void) +{ +} + +void setup_arch(void) +{ +} |