diff options
| author |   Joerg Roedel <jroedel@suse.de> | 2020-09-07 15:15:45 +0200 |
|---|---|---|
| committer |   Borislav Petkov <bp@suse.de> | 2020-09-09 11:33:19 +0200 |
| commit | 6b27edd74a5e9669120f7bd0ae1f475d124c1042 (patch) | |
| tree | f8c92eb6fde4a1d98e518a696ddaa71de0865e59 /arch/x86/include/asm/stacktrace.h | |
| parent | x86/sev-es: Adjust #VC IST Stack on entering NMI handler (diff) | |
| download | linux-dev-6b27edd74a5e9669120f7bd0ae1f475d124c1042.tar.xz linux-dev-6b27edd74a5e9669120f7bd0ae1f475d124c1042.zip | |
x86/dumpstack/64: Add noinstr version of get_stack_info()
The get_stack_info() functionality is needed in the entry code for the
#VC exception handler. Provide a version of it in the .text.noinstr
section which can be called safely from there.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200907131613.12703-45-joro@8bytes.org
Diffstat (limited to 'arch/x86/include/asm/stacktrace.h')
| -rw-r--r-- | arch/x86/include/asm/stacktrace.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/stacktrace.h b/arch/x86/include/asm/stacktrace.h index 5ae5a68e469d..49600643faba 100644 --- a/arch/x86/include/asm/stacktrace.h +++ b/arch/x86/include/asm/stacktrace.h @@ -35,6 +35,8 @@ 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); const char *stack_type_name(enum stack_type type); |