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| author | Ard Biesheuvel <ardb@kernel.org> | 2022-12-09 12:10:13 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2023-01-16 15:27:31 +0100 |
| commit | 7ea55715c421d22c1b63f7129cae6a654091b695 (patch) | |
| tree | 19143b664c146967573eee1aa22c4c3b5daacde7 /arch/arm64/include/asm/stacktrace.h | |
| parent | arm64: efi: Avoid workqueue to check whether EFI runtime is live (diff) | |
| download | linux-7ea55715c421d22c1b63f7129cae6a654091b695.tar.xz linux-7ea55715c421d22c1b63f7129cae6a654091b695.zip | |
arm64: efi: Account for the EFI runtime stack in stack unwinder
The EFI runtime services run from a dedicated stack now, and so the
stack unwinder needs to be informed about this.
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/stacktrace.h')
| -rw-r--r-- | arch/arm64/include/asm/stacktrace.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/stacktrace.h b/arch/arm64/include/asm/stacktrace.h index 4e5354beafb0..66ec8caa6ac0 100644 --- a/arch/arm64/include/asm/stacktrace.h +++ b/arch/arm64/include/asm/stacktrace.h @@ -106,4 +106,19 @@ static inline struct stack_info stackinfo_get_sdei_critical(void) #define stackinfo_get_sdei_critical() stackinfo_get_unknown() #endif +#ifdef CONFIG_EFI +extern u64 *efi_rt_stack_top; + +static inline struct stack_info stackinfo_get_efi(void) +{ + unsigned long high = (u64)efi_rt_stack_top; + unsigned long low = high - THREAD_SIZE; + + return (struct stack_info) { + .low = low, + .high = high, + }; +} +#endif + #endif /* __ASM_STACKTRACE_H */ |