diff options
| author | Tom Lendacky <thomas.lendacky@amd.com> | 2024-05-01 10:10:45 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-05-07 20:28:03 +0300 |
| commit | d916f00316b206255164392eeb2aca5f87cdb18a (patch) | |
| tree | 2d677822b79ccc16a1e8c8c653c848cf1708c3bf /arch/x86/include | |
| parent | a96cb3bf390eebfead5fc7a2092f8452a7997d1b (diff) | |
| download | linux-d916f00316b206255164392eeb2aca5f87cdb18a.tar.xz | |
KVM: SEV: Add support to handle AP reset MSR protocol
Add support for AP Reset Hold being invoked using the GHCB MSR protocol,
available in version 2 of the GHCB specification.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Ashish Kalra <ashish.kalra@amd.com>
Signed-off-by: Michael Roth <michael.roth@amd.com>
Message-ID: <20240501071048.2208265-2-michael.roth@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/sev-common.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/x86/include/asm/sev-common.h b/arch/x86/include/asm/sev-common.h index b463fcbd4b90..01261f7054ad 100644 --- a/arch/x86/include/asm/sev-common.h +++ b/arch/x86/include/asm/sev-common.h @@ -54,8 +54,10 @@ (((unsigned long)fn) << 32)) /* AP Reset Hold */ -#define GHCB_MSR_AP_RESET_HOLD_REQ 0x006 -#define GHCB_MSR_AP_RESET_HOLD_RESP 0x007 +#define GHCB_MSR_AP_RESET_HOLD_REQ 0x006 +#define GHCB_MSR_AP_RESET_HOLD_RESP 0x007 +#define GHCB_MSR_AP_RESET_HOLD_RESULT_POS 12 +#define GHCB_MSR_AP_RESET_HOLD_RESULT_MASK GENMASK_ULL(51, 0) /* GHCB GPA Register */ #define GHCB_MSR_REG_GPA_REQ 0x012 |