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| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-09-07 16:15:06 +0300 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-09-07 20:45:24 +0300 |
| commit | 360e7c5c4ca4fd8e627781ed42f95d58bc3bb732 (patch) | |
| tree | a95f96d6c084d37e93cd4df75b5941b3078c4ab6 /arch/x86/include/asm/cpufeatures.h | |
| parent | 976bc5e2aceedef13e0ba1f0e6e372a22164aa0c (diff) | |
| download | linux-360e7c5c4ca4fd8e627781ed42f95d58bc3bb732.tar.xz | |
x86/cpufeatures: Add SEV-ES CPU feature
Add CPU feature detection for Secure Encrypted Virtualization with
Encrypted State. This feature enhances SEV by also encrypting the
guest register state, making it in-accessible to the hypervisor.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200907131613.12703-6-joro@8bytes.org
Diffstat (limited to 'arch/x86/include/asm/cpufeatures.h')
| -rw-r--r-- | arch/x86/include/asm/cpufeatures.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index 83fc9d38eb1f..1205c1b6991a 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -236,6 +236,7 @@ #define X86_FEATURE_EPT_AD ( 8*32+17) /* Intel Extended Page Table access-dirty bit */ #define X86_FEATURE_VMCALL ( 8*32+18) /* "" Hypervisor supports the VMCALL instruction */ #define X86_FEATURE_VMW_VMMCALL ( 8*32+19) /* "" VMware prefers VMMCALL hypercall instruction */ +#define X86_FEATURE_SEV_ES ( 8*32+20) /* AMD Secure Encrypted Virtualization - Encrypted State */ /* Intel-defined CPU features, CPUID level 0x00000007:0 (EBX), word 9 */ #define X86_FEATURE_FSGSBASE ( 9*32+ 0) /* RDFSBASE, WRFSBASE, RDGSBASE, WRGSBASE instructions*/ |