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| author | Michael Roth <michael.roth@amd.com> | 2022-02-24 19:56:18 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2022-04-07 17:47:11 +0300 |
| commit | b190a043c49af4587f5e157053f909192820522a (patch) | |
| tree | 1cb7b0e4fe544e2d9506fe8bad441bd535eea461 /arch/x86/include/asm/sev.h | |
| parent | 76f61e1e89b32f3e5d639f1b57413a919066da06 (diff) | |
| download | linux-b190a043c49af4587f5e157053f909192820522a.tar.xz | |
x86/sev: Add SEV-SNP feature detection/setup
Initial/preliminary detection of SEV-SNP is done via the Confidential
Computing blob. Check for it prior to the normal SEV/SME feature
initialization, and add some sanity checks to confirm it agrees with
SEV-SNP CPUID/MSR bits.
Signed-off-by: Michael Roth <michael.roth@amd.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lore.kernel.org/r/20220307213356.2797205-39-brijesh.singh@amd.com
Diffstat (limited to 'arch/x86/include/asm/sev.h')
| -rw-r--r-- | arch/x86/include/asm/sev.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/sev.h b/arch/x86/include/asm/sev.h index 31b3b10323b6..84d3d5121e9c 100644 --- a/arch/x86/include/asm/sev.h +++ b/arch/x86/include/asm/sev.h @@ -153,6 +153,7 @@ void snp_set_memory_shared(unsigned long vaddr, unsigned int npages); void snp_set_memory_private(unsigned long vaddr, unsigned int npages); void snp_set_wakeup_secondary_cpu(void); bool snp_init(struct boot_params *bp); +void snp_abort(void); #else static inline void sev_es_ist_enter(struct pt_regs *regs) { } static inline void sev_es_ist_exit(void) { } @@ -171,6 +172,7 @@ static inline void snp_set_memory_shared(unsigned long vaddr, unsigned int npage static inline void snp_set_memory_private(unsigned long vaddr, unsigned int npages) { } static inline void snp_set_wakeup_secondary_cpu(void) { } static inline bool snp_init(struct boot_params *bp) { return false; } +static inline void snp_abort(void) { } #endif #endif |