Reviewed-by: Liming Gao <liming....@intel.com> -----Original Message----- From: devel@edk2.groups.io <devel@edk2.groups.io> On Behalf Of Lendacky, Thomas Sent: 2020年7月22日 5:19 To: devel@edk2.groups.io Cc: Brijesh Singh <brijesh.si...@amd.com>; Ard Biesheuvel <ard.biesheu...@arm.com>; Dong, Eric <eric.d...@intel.com>; Justen, Jordan L <jordan.l.jus...@intel.com>; Laszlo Ersek <ler...@redhat.com>; Gao, Liming <liming....@intel.com>; Kinney, Michael D <michael.d.kin...@intel.com>; Ni, Ray <ray...@intel.com> Subject: [edk2-devel] [PATCH v11 03/46] MdePkg: Add the MSR definition for the GHCB register
From: Tom Lendacky <thomas.lenda...@amd.com> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198 For SEV-ES, the GHCB page address is stored in the GHCB MSR register (0xc0010130). Define the register and the format used for register during GHCB protocol negotiation. Cc: Michael D Kinney <michael.d.kin...@intel.com> Cc: Liming Gao <liming....@intel.com> Signed-off-by: Tom Lendacky <thomas.lenda...@amd.com> --- MdePkg/Include/Register/Amd/Fam17Msr.h | 46 ++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/MdePkg/Include/Register/Amd/Fam17Msr.h b/MdePkg/Include/Register/Amd/Fam17Msr.h index 6ef45a9b21d3..e4db09c5184c 100644 --- a/MdePkg/Include/Register/Amd/Fam17Msr.h +++ b/MdePkg/Include/Register/Amd/Fam17Msr.h @@ -17,6 +17,52 @@ #ifndef __FAM17_MSR_H__ #define __FAM17_MSR_H__ +/** + Secure Encrypted Virtualization - Encrypted State (SEV-ES) GHCB +register + +**/ +#define MSR_SEV_ES_GHCB 0xc0010130 + +/** + MSR information returned for #MSR_SEV_ES_GHCB **/ typedef union { + struct { + UINT32 Function:12; + UINT32 Reserved1:20; + UINT32 Reserved2:32; + } GhcbInfo; + + struct { + UINT8 Reserved[3]; + UINT8 SevEncryptionBitPos; + UINT16 SevEsProtocolMin; + UINT16 SevEsProtocolMax; + } GhcbProtocol; + + struct { + UINT32 Function:12; + UINT32 ReasonCodeSet:4; + UINT32 ReasonCode:8; + UINT32 Reserved1:8; + UINT32 Reserved2:32; + } GhcbTerminate; + + VOID *Ghcb; + + UINT64 GhcbPhysicalAddress; +} MSR_SEV_ES_GHCB_REGISTER; + +#define GHCB_INFO_SEV_INFO 1 +#define GHCB_INFO_SEV_INFO_GET 2 +#define GHCB_INFO_CPUID_REQUEST 4 +#define GHCB_INFO_CPUID_RESPONSE 5 +#define GHCB_INFO_TERMINATE_REQUEST 256 + +#define GHCB_TERMINATE_GHCB 0 +#define GHCB_TERMINATE_GHCB_GENERAL 0 +#define GHCB_TERMINATE_GHCB_PROTOCOL 1 + /** Secure Encrypted Virtualization (SEV) status register -- 2.27.0 -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#63179): https://edk2.groups.io/g/devel/message/63179 Mute This Topic: https://groups.io/mt/75713037/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
