diff options
| -rw-r--r-- | OvmfPkg/OvmfPkg.dec | 9 | ||||
| -rw-r--r-- | OvmfPkg/OvmfPkgDefines.fdf.inc | 9 | ||||
| -rw-r--r-- | OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm | 19 | ||||
| -rw-r--r-- | OvmfPkg/ResetVector/ResetVector.inf | 9 | ||||
| -rw-r--r-- | OvmfPkg/ResetVector/ResetVector.nasmb | 27 | ||||
| -rw-r--r-- | OvmfPkg/ResetVector/X64/IntelTdxMetadata.asm | 115 |
6 files changed, 188 insertions, 0 deletions
diff --git a/OvmfPkg/OvmfPkg.dec b/OvmfPkg/OvmfPkg.dec index 1be8d5dccb..340d83f794 100644 --- a/OvmfPkg/OvmfPkg.dec +++ b/OvmfPkg/OvmfPkg.dec @@ -340,6 +340,15 @@ # header definition.
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfConfidentialComputingWorkAreaHeader|4|UINT32|0x51
+ ## The base address and size of the TDX Cfv base and size.
+ gUefiOvmfPkgTokenSpaceGuid.PcdCfvBase|0|UINT32|0x52
+ gUefiOvmfPkgTokenSpaceGuid.PcdCfvRawDataOffset|0|UINT32|0x53
+ gUefiOvmfPkgTokenSpaceGuid.PcdCfvRawDataSize|0|UINT32|0x54
+
+ ## The base address and size of the TDX Bfv base and size.
+ gUefiOvmfPkgTokenSpaceGuid.PcdBfvBase|0|UINT32|0x55
+ gUefiOvmfPkgTokenSpaceGuid.PcdBfvRawDataOffset|0|UINT32|0x56
+ gUefiOvmfPkgTokenSpaceGuid.PcdBfvRawDataSize|0|UINT32|0x57
[PcdsDynamic, PcdsDynamicEx]
gUefiOvmfPkgTokenSpaceGuid.PcdEmuVariableEvent|0|UINT64|2
diff --git a/OvmfPkg/OvmfPkgDefines.fdf.inc b/OvmfPkg/OvmfPkgDefines.fdf.inc index 3b5e452539..6170c5993c 100644 --- a/OvmfPkg/OvmfPkgDefines.fdf.inc +++ b/OvmfPkg/OvmfPkgDefines.fdf.inc @@ -9,6 +9,7 @@ ##
DEFINE BLOCK_SIZE = 0x1000
+DEFINE VARS_OFFSET = 0
#
# A firmware binary built with FD_SIZE_IN_KB=1024, and a firmware binary built
@@ -88,6 +89,14 @@ SET gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwSpareSize = $(VARS_SPARE_ # Computing Work Area header defined in the Include/WorkArea.h
SET gUefiOvmfPkgTokenSpaceGuid.PcdOvmfConfidentialComputingWorkAreaHeader = 4
+SET gUefiOvmfPkgTokenSpaceGuid.PcdCfvBase = $(FW_BASE_ADDRESS)
+SET gUefiOvmfPkgTokenSpaceGuid.PcdCfvRawDataOffset = $(VARS_OFFSET)
+SET gUefiOvmfPkgTokenSpaceGuid.PcdCfvRawDataSize = $(VARS_SIZE)
+
+SET gUefiOvmfPkgTokenSpaceGuid.PcdBfvBase = $(CODE_BASE_ADDRESS)
+SET gUefiOvmfPkgTokenSpaceGuid.PcdBfvRawDataOffset = $(VARS_SIZE)
+SET gUefiOvmfPkgTokenSpaceGuid.PcdBfvRawDataSize = $(CODE_SIZE)
+
!if $(SMM_REQUIRE) == TRUE
SET gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageVariableBase64 = gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageVariableBase
SET gEfiMdeModulePkgTokenSpaceGuid.PcdFlashNvStorageFtwWorkingBase = gUefiOvmfPkgTokenSpaceGuid.PcdOvmfFlashNvStorageFtwWorkingBase
diff --git a/OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm b/OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm index 7ec3c6e980..7be43fb44a 100644 --- a/OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm +++ b/OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm @@ -47,6 +47,25 @@ TIMES (15 - ((guidedStructureEnd - guidedStructureStart + 15) % 16)) DB 0 ;
guidedStructureStart:
+%ifdef ARCH_X64
+;
+; TDX Metadata offset block
+;
+; TdxMetadata.asm is included in ARCH_X64 because Inte TDX is only
+; available in ARCH_X64. Below block describes the offset of
+; TdxMetadata block in Ovmf image
+;
+; GUID : e47a6535-984a-4798-865e-4685a7bf8ec2
+;
+tdxMetadataOffsetStart:
+ DD fourGigabytes - TdxMetadataGuid - 16
+ DW tdxMetadataOffsetEnd - tdxMetadataOffsetStart
+ DB 0x35, 0x65, 0x7a, 0xe4, 0x4a, 0x98, 0x98, 0x47
+ DB 0x86, 0x5e, 0x46, 0x85, 0xa7, 0xbf, 0x8e, 0xc2
+tdxMetadataOffsetEnd:
+
+%endif
+
; SEV Hash Table Block
;
; This describes the guest ram area where the hypervisor should
diff --git a/OvmfPkg/ResetVector/ResetVector.inf b/OvmfPkg/ResetVector/ResetVector.inf index a2520dde55..320e5f2c65 100644 --- a/OvmfPkg/ResetVector/ResetVector.inf +++ b/OvmfPkg/ResetVector/ResetVector.inf @@ -44,6 +44,15 @@ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamBase
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecPeiTempRamSize
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaBase
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaSize
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecGhcbBackupBase
+ gUefiOvmfPkgTokenSpaceGuid.PcdOvmfSecGhcbBackupSize
+ gUefiOvmfPkgTokenSpaceGuid.PcdCfvBase
+ gUefiOvmfPkgTokenSpaceGuid.PcdCfvRawDataOffset
+ gUefiOvmfPkgTokenSpaceGuid.PcdCfvRawDataSize
+ gUefiOvmfPkgTokenSpaceGuid.PcdBfvBase
+ gUefiOvmfPkgTokenSpaceGuid.PcdBfvRawDataOffset
+ gUefiOvmfPkgTokenSpaceGuid.PcdBfvRawDataSize
[FixedPcd]
gUefiOvmfPkgTokenSpaceGuid.PcdSevLaunchSecretBase
diff --git a/OvmfPkg/ResetVector/ResetVector.nasmb b/OvmfPkg/ResetVector/ResetVector.nasmb index 21b5fd82b8..eb9733e402 100644 --- a/OvmfPkg/ResetVector/ResetVector.nasmb +++ b/OvmfPkg/ResetVector/ResetVector.nasmb @@ -69,6 +69,31 @@ %error "This implementation inherently depends on PcdOvmfSecGhcbBase not straddling a 2MB boundary"
%endif
+ %define TDX_BFV_RAW_DATA_OFFSET FixedPcdGet32 (PcdBfvRawDataOffset)
+ %define TDX_BFV_RAW_DATA_SIZE FixedPcdGet32 (PcdBfvRawDataSize)
+ %define TDX_BFV_MEMORY_BASE FixedPcdGet32 (PcdBfvBase)
+ %define TDX_BFV_MEMORY_SIZE FixedPcdGet32 (PcdBfvRawDataSize)
+
+ %define TDX_CFV_RAW_DATA_OFFSET FixedPcdGet32 (PcdCfvRawDataOffset)
+ %define TDX_CFV_RAW_DATA_SIZE FixedPcdGet32 (PcdCfvRawDataSize)
+ %define TDX_CFV_MEMORY_BASE FixedPcdGet32 (PcdCfvBase),
+ %define TDX_CFV_MEMORY_SIZE FixedPcdGet32 (PcdCfvRawDataSize),
+
+ %define TDX_HEAP_STACK_BASE FixedPcdGet32 (PcdOvmfSecPeiTempRamBase)
+ %define TDX_HEAP_STACK_SIZE FixedPcdGet32 (PcdOvmfSecPeiTempRamSize)
+
+ %define TDX_HOB_MEMORY_BASE FixedPcdGet32 (PcdOvmfSecGhcbBase)
+ %define TDX_HOB_MEMORY_SIZE FixedPcdGet32 (PcdOvmfSecGhcbSize)
+
+ %define TDX_INIT_MEMORY_BASE FixedPcdGet32 (PcdOvmfWorkAreaBase)
+ %define TDX_INIT_MEMORY_SIZE (FixedPcdGet32 (PcdOvmfWorkAreaSize) + FixedPcdGet32 (PcdOvmfSecGhcbBackupSize))
+
+ %define OVMF_PAGE_TABLE_BASE FixedPcdGet32 (PcdOvmfSecPageTablesBase)
+ %define OVMF_PAGE_TABLE_SIZE FixedPcdGet32 (PcdOvmfSecPageTablesSize)
+
+ %define TDX_WORK_AREA_PGTBL_READY (FixedPcdGet32 (PcdOvmfWorkAreaBase) + 4)
+ %define TDX_WORK_AREA_GPAW (FixedPcdGet32 (PcdOvmfWorkAreaBase) + 8)
+
%define PT_ADDR(Offset) (FixedPcdGet32 (PcdOvmfSecPageTablesBase) + (Offset))
%define GHCB_PT_ADDR (FixedPcdGet32 (PcdOvmfSecGhcbPageTableBase))
@@ -78,6 +103,8 @@ %define SEV_ES_WORK_AREA_RDRAND (FixedPcdGet32 (PcdSevEsWorkAreaBase) + 8)
%define SEV_ES_WORK_AREA_ENC_MASK (FixedPcdGet32 (PcdSevEsWorkAreaBase) + 16)
%define SEV_ES_VC_TOP_OF_STACK (FixedPcdGet32 (PcdOvmfSecPeiTempRamBase) + FixedPcdGet32 (PcdOvmfSecPeiTempRamSize))
+
+%include "X64/IntelTdxMetadata.asm"
%include "Ia32/Flat32ToFlat64.asm"
%include "Ia32/AmdSev.asm"
%include "Ia32/PageTables64.asm"
diff --git a/OvmfPkg/ResetVector/X64/IntelTdxMetadata.asm b/OvmfPkg/ResetVector/X64/IntelTdxMetadata.asm new file mode 100644 index 0000000000..07f89ef493 --- /dev/null +++ b/OvmfPkg/ResetVector/X64/IntelTdxMetadata.asm @@ -0,0 +1,115 @@ +;------------------------------------------------------------------------------
+; @file
+; Tdx Virtual Firmware metadata
+;
+; When host VMM creates a new guest TD, some initial set of TD-private pages
+; are added using the TDH.MEM.PAGE.ADD function. These pages typically contain
+; Virtual BIOS code and data along with some clear pages for stacks and heap.
+; In the meanwhile, some configuration data need be measured by host VMM.
+; Tdx Metadata is designed for this purpose to indicate host VMM how to do the
+; above tasks.
+;
+; Tdx Metadata consists of a DESCRIPTOR as the header followed by several
+; SECTIONs. Host VMM sets up the memory for TDVF according to these sections.
+;
+; _Bfv is the example (Bfv refers to the Virtual BIOS code).
+; - By DataOffset/RawDataSize host VMM knows about the position of the code
+; in the binary image.
+; - MemoryAddress/MemoryDataSize indicates the guest physical address/size of
+; the Bfv to be loaded.
+; - Type field means this section is of BFV. This field is designed for the
+; purpose that in some case host VMM may do some additional processing based
+; upon the section type. TdHob section is an example. Host VMM pass the
+; physical memory information to the guest firmware by writing the data in
+; the memory region designated by TdHob section.
+; - By design code part of the binary image (Bfv) should be measured by host
+; VMM. This is indicated by the Attributes field.
+;
+; So put all these information together, when a new guest is being created,
+; the initial TD-private pages for BFV is added by TDH.MEM.PAGE.ADD function,
+; and Bfv is loaded at the guest physical address indicated by MemoryAddress.
+; Since the Attributes is TDX_METADATA_ATTRIBUTES_EXTENDMR, Bfv is measured by
+; host VMM.
+;
+; Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
+; SPDX-License-Identifier: BSD-2-Clause-Patent
+;
+;------------------------------------------------------------------------------
+
+BITS 64
+
+%define TDX_METADATA_SECTION_TYPE_BFV 0
+%define TDX_METADATA_SECTION_TYPE_CFV 1
+%define TDX_METADATA_SECTION_TYPE_TD_HOB 2
+%define TDX_METADATA_SECTION_TYPE_TEMP_MEM 3
+%define TDX_METADATA_VERSION 1
+%define TDX_METADATA_ATTRIBUTES_EXTENDMR 0x00000001
+
+ALIGN 16
+TIMES (15 - ((TdxGuidedStructureEnd - TdxGuidedStructureStart + 15) % 16)) DB 0
+
+TdxGuidedStructureStart:
+
+;
+; TDVF meta data
+;
+TdxMetadataGuid:
+ DB 0xf3, 0xf9, 0xea, 0xe9, 0x8e, 0x16, 0xd5, 0x44
+ DB 0xa8, 0xeb, 0x7f, 0x4d, 0x87, 0x38, 0xf6, 0xae
+
+_Descriptor:
+ DB 'T','D','V','F' ; Signature
+ DD TdxGuidedStructureEnd - _Descriptor ; Length
+ DD TDX_METADATA_VERSION ; Version
+ DD (TdxGuidedStructureEnd - _Descriptor - 16)/32 ; Number of sections
+
+_Bfv:
+ DD TDX_BFV_RAW_DATA_OFFSET
+ DD TDX_BFV_RAW_DATA_SIZE
+ DQ TDX_BFV_MEMORY_BASE
+ DQ TDX_BFV_MEMORY_SIZE
+ DD TDX_METADATA_SECTION_TYPE_BFV
+ DD TDX_METADATA_ATTRIBUTES_EXTENDMR
+
+_Cfv:
+ DD TDX_CFV_RAW_DATA_OFFSET
+ DD TDX_CFV_RAW_DATA_SIZE
+ DQ TDX_CFV_MEMORY_BASE
+ DQ TDX_CFV_MEMORY_SIZE
+ DD TDX_METADATA_SECTION_TYPE_CFV
+ DD 0
+
+_TdxHeapStack:
+ DD 0
+ DD 0
+ DQ TDX_HEAP_STACK_BASE
+ DQ TDX_HEAP_STACK_SIZE
+ DD TDX_METADATA_SECTION_TYPE_TEMP_MEM
+ DD 0
+
+_TdxInitMem:
+ DD 0
+ DD 0
+ DQ TDX_INIT_MEMORY_BASE
+ DQ TDX_INIT_MEMORY_SIZE
+ DD TDX_METADATA_SECTION_TYPE_TEMP_MEM
+ DD 0
+
+_TdHob:
+ DD 0
+ DD 0
+ DQ TDX_HOB_MEMORY_BASE
+ DQ TDX_HOB_MEMORY_SIZE
+ DD TDX_METADATA_SECTION_TYPE_TD_HOB
+ DD 0
+
+_OvmfPageTable:
+ DD 0
+ DD 0
+ DQ OVMF_PAGE_TABLE_BASE
+ DQ OVMF_PAGE_TABLE_SIZE
+ DD TDX_METADATA_SECTION_TYPE_TEMP_MEM
+ DD 0
+
+TdxGuidedStructureEnd:
+ALIGN 16
|