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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-24 18:55:53 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2023-07-24 18:55:53 +0300 |
| commit | 0a9266b79cacdd02b888aed1308c308ad6d4ee4e (patch) | |
| tree | 2797c2053026b8282b632d542f1ee1c2f171d8c2 /arch/x86/include/asm/microcode_amd.h | |
| parent | 6eaae198076080886b9e7d57f4ae06fa782f90ef (diff) | |
| parent | 522b1d69219d8f083173819fde04f994aa051a98 (diff) | |
| download | linux-0a9266b79cacdd02b888aed1308c308ad6d4ee4e.tar.xz | |
Merge tag 'x86_bugs_zenbleed' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull Zen 2 errata fix from Borislav Petkov:
"Fix an issue on AMD Zen2 processors called Zenbleed.
The bug manifests itself as a data corruption issue when executing
VZEROUPPER under certain microarchitectural conditions"
* tag 'x86_bugs_zenbleed' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/cpu/amd: Add a Zenbleed fix
x86/cpu/amd: Move the errata checking functionality up
Diffstat (limited to 'arch/x86/include/asm/microcode_amd.h')
| -rw-r--r-- | arch/x86/include/asm/microcode_amd.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/microcode_amd.h b/arch/x86/include/asm/microcode_amd.h index e6662adf3af4..9675c621c1ca 100644 --- a/arch/x86/include/asm/microcode_amd.h +++ b/arch/x86/include/asm/microcode_amd.h @@ -48,11 +48,13 @@ 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); +extern void amd_check_microcode(void); #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) {} +static inline void amd_check_microcode(void) {} #endif #endif /* _ASM_X86_MICROCODE_AMD_H */ |