| | 1 | /** @file\r |
| | 2 | \r |
| | 3 | Work Area structure definition\r |
| | 4 | \r |
| | 5 | Copyright (c) 2021, AMD Inc.\r |
| | 6 | \r |
| | 7 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| | 8 | **/\r |
| | 9 | \r |
| | 10 | #ifndef __OVMF_WORK_AREA_H__\r |
| | 11 | #define __OVMF_WORK_AREA_H__\r |
| | 12 | \r |
| | 13 | #include <ConfidentialComputingGuestAttr.h>\r |
| | 14 | \r |
| | 15 | //\r |
| | 16 | // Confidential computing work area header definition. Any change\r |
| | 17 | // to the structure need to be kept in sync with the\r |
| | 18 | // PcdOvmfConfidentialComputingWorkAreaHeader.\r |
| | 19 | //\r |
| | 20 | // PcdOvmfConfidentialComputingWorkAreaHeader ==\r |
| | 21 | // sizeof (CONFIDENTIAL_COMPUTING_WORK_AREA_HEADER)\r |
| | 22 | // PcdOvmfConfidentialComputingWorkAreaHeader defined in:\r |
| | 23 | // OvmfPkg/OvmfPkg.dec\r |
| | 24 | // OvmfPkg/Include/Fdf/OvmfPkgDefines.fdf.inc\r |
| | 25 | typedef struct _CONFIDENTIAL_COMPUTING_WORK_AREA_HEADER {\r |
| | 26 | UINT8 GuestType;\r |
| | 27 | UINT8 Reserved1[3];\r |
| | 28 | } CONFIDENTIAL_COMPUTING_WORK_AREA_HEADER;\r |
| | 29 | \r |
| | 30 | //\r |
| | 31 | // Internal structure for holding SEV-ES information needed during SEC phase\r |
| | 32 | // and valid only during SEC phase and early PEI during platform\r |
| | 33 | // initialization.\r |
| | 34 | //\r |
| | 35 | // This structure is also used by assembler files:\r |
| | 36 | // OvmfPkg/ResetVector/ResetVector.nasmb\r |
| | 37 | // OvmfPkg/ResetVector/Ia32/PageTables64.asm\r |
| | 38 | // OvmfPkg/ResetVector/Ia32/Flat32ToFlat64.asm\r |
| | 39 | // any changes must stay in sync with its usage.\r |
| | 40 | //\r |
| | 41 | typedef struct _SEC_SEV_ES_WORK_AREA {\r |
| | 42 | //\r |
| | 43 | // Hold the SevStatus MSR value read by OvmfPkg/ResetVector/Ia32/AmdSev.c\r |
| | 44 | //\r |
| | 45 | UINT64 SevStatusMsrValue;\r |
| | 46 | \r |
| | 47 | UINT64 RandomData;\r |
| | 48 | \r |
| | 49 | UINT64 EncryptionMask;\r |
| | 50 | \r |
| | 51 | //\r |
| | 52 | // Indicator that the VC handler is called. It is used during the SevFeature\r |
| | 53 | // detection in OvmfPkg/ResetVector/Ia32/AmdSev.c\r |
| | 54 | //\r |
| | 55 | UINT8 ReceivedVc;\r |
| | 56 | } SEC_SEV_ES_WORK_AREA;\r |
| | 57 | \r |
| | 58 | //\r |
| | 59 | // The SEV work area definition.\r |
| | 60 | //\r |
| | 61 | typedef struct _SEV_WORK_AREA {\r |
| | 62 | CONFIDENTIAL_COMPUTING_WORK_AREA_HEADER Header;\r |
| | 63 | \r |
| | 64 | SEC_SEV_ES_WORK_AREA SevEsWorkArea;\r |
| | 65 | } SEV_WORK_AREA;\r |
| | 66 | \r |
| | 67 | //\r |
| | 68 | // The TDX work area definition\r |
| | 69 | //\r |
| | 70 | typedef struct _SEC_TDX_WORK_AREA {\r |
| | 71 | UINT32 PageTableReady;\r |
| | 72 | UINT32 Gpaw;\r |
| | 73 | UINT64 HobList;\r |
| | 74 | } SEC_TDX_WORK_AREA;\r |
| | 75 | \r |
| | 76 | typedef struct _TDX_WORK_AREA {\r |
| | 77 | CONFIDENTIAL_COMPUTING_WORK_AREA_HEADER Header;\r |
| | 78 | SEC_TDX_WORK_AREA SecTdxWorkArea;\r |
| | 79 | } TDX_WORK_AREA;\r |
| | 80 | \r |
| | 81 | typedef union {\r |
| | 82 | CONFIDENTIAL_COMPUTING_WORK_AREA_HEADER Header;\r |
| | 83 | SEV_WORK_AREA SevWorkArea;\r |
| | 84 | TDX_WORK_AREA TdxWorkArea;\r |
| | 85 | } OVMF_WORK_AREA;\r |
| | 86 | \r |
| | 87 | #endif\r |
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