BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275
An SEV-SNP guest is required to perform the GHCB GPA registration. See the GHCB specification for further details. Cc: James Bottomley <[email protected]> Cc: Min Xu <[email protected]> Cc: Jiewen Yao <[email protected]> Cc: Tom Lendacky <[email protected]> Cc: Jordan Justen <[email protected]> Cc: Ard Biesheuvel <[email protected]> Cc: Laszlo Ersek <[email protected]> Signed-off-by: Brijesh Singh <[email protected]> --- MdePkg/Include/Register/Amd/Fam17Msr.h | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/MdePkg/Include/Register/Amd/Fam17Msr.h b/MdePkg/Include/Register/Amd/Fam17Msr.h index 4d33bef220..c074e871a7 100644 --- a/MdePkg/Include/Register/Amd/Fam17Msr.h +++ b/MdePkg/Include/Register/Amd/Fam17Msr.h @@ -48,6 +48,11 @@ typedef union { UINT32 Reserved2:32; } GhcbTerminate; + struct { + UINT64 Function:12; + UINT64 GuestFrameNumber:52; + } GhcbGpaRegister; + VOID *Ghcb; UINT64 GhcbPhysicalAddress; @@ -58,6 +63,8 @@ typedef union { #define GHCB_INFO_CPUID_REQUEST 4 #define GHCB_INFO_CPUID_RESPONSE 5 #define GHCB_INFO_TERMINATE_REQUEST 256 +#define GHCB_INFO_GHCB_GPA_REGISTER_REQUEST 18 +#define GHCB_INFO_GHCB_GPA_REGISTER_RESPONSE 19 #define GHCB_TERMINATE_GHCB 0 #define GHCB_TERMINATE_GHCB_GENERAL 0 -- 2.17.1 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#73221): https://edk2.groups.io/g/devel/message/73221 Mute This Topic: https://groups.io/mt/81584581/21656 Group Owner: [email protected] Unsubscribe: https://edk2.groups.io/g/devel/unsub [[email protected]] -=-=-=-=-=-=-=-=-=-=-=-
