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X-MS-Exchange-AntiSpam-MessageData: 1QzXUh7EDda9PAFUhi2yeSOrwfpAd9nYFGkk+B7I+EG0Bz+hi06u77i1ZGRcpMrJRTi0aKSfEvaqhihTlKn64MJXokOzpOEA69QJv6ZVS4r49/FPQxj+tDpFjq7ONNecE6pt8cHhAFXs+KECQAzPQ92wIonRaZrdfMjcFMIFXI6tltcgD+7XZZEWXl3FZPnjNMYTpNnqkEpoNQLhkRuKt7YNneAstmpFlWgFJ5O3bHA8BavqDIu/AC5GgKgylse7fweGvUAveM8F8yhCwR7W5AVnw4s9APPjTtmQ5SqTLKXL6jBO3gEApasbZs86X04QgXacdODyctYkLHWTW9ID3PIRJuP9Z4Ngf0XSzoMMACFEU6nsobZDbn72dowBcZmvo7EXCR8iJ520wX51LcJthMB5vzQDxCOjfvEqJY/CDfFuzf77fsSfn89uZFjxnq/xFptm7UzLEHxeSvf4uhTADziry1tp8Ujof5wAXfpNxxg= X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 02d8fde3-550b-4aec-e0be-08d7fc3ecac5 X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 May 2020 21:51:31.8501 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: 61Waf+XHqd1owocoxoiTeAkPlSfSMJn01/zfvDb8lQSfQQx9WOi2Cimd+bnvC9zl6PGvpeGxuaAAehdF5mCKHQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR12MB2504 Content-Type: text/plain 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 Cc: Liming Gao Signed-off-by: Tom Lendacky --- MdePkg/Include/Register/Amd/Fam17Msr.h | 42 ++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/MdePkg/Include/Register/Amd/Fam17Msr.h b/MdePkg/Include/Register/Amd/Fam17Msr.h index 6ef45a9b21d3..466a3143599c 100644 --- a/MdePkg/Include/Register/Amd/Fam17Msr.h +++ b/MdePkg/Include/Register/Amd/Fam17Msr.h @@ -17,6 +17,48 @@ #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 { + UINT64 Function:12; + } GhcbInfo; + + struct { + UINT8 Reserved[3]; + UINT8 SevEncryptionBitPos; + UINT16 SevEsProtocolMin; + UINT16 SevEsProtocolMax; + } GhcbProtocol; + + struct { + UINT64 Function:12; + UINT64 ReasonCodeSet:4; + UINT64 ReasonCode:8; + } 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 -- 2.17.1