RFC: https://bugzilla.tianocore.org/show_bug.cgi?id=3429
This patch-sets is to bring up Legacy guest and Tdx guest without
PEI phase. So platform initialization has to be done in SEC phase.
It is similar to the work of OvmfPkg/PlatformPei. In
OvmfPkg/PlatformPei some PCDs are set during platform initialization,
such as PcdPciMmio64Base. But in PEI-less boot, PCDs cannot be set.
So these values are saved in EFI_HOB_PLATFORM_INFO. Then in the early
stage of DXE phase this hob will be parsed and PCDs are set accordingly.
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Brijesh Singh <brijesh.si...@amd.com>
Cc: Erdem Aktas <erdemak...@google.com>
Cc: James Bottomley <j...@linux.ibm.com>
Cc: Jiewen Yao <jiewen....@intel.com>
Cc: Tom Lendacky <thomas.lenda...@amd.com>
Cc: Gerd Hoffmann <kra...@redhat.com>
Signed-off-by: Min Xu <min.m...@intel.com>
---
OvmfPkg/Include/Library/PlatformInitLib.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/OvmfPkg/Include/Library/PlatformInitLib.h
b/OvmfPkg/Include/Library/PlatformInitLib.h
index 6a88a9b4a69c..52d62f21c29e 100644
--- a/OvmfPkg/Include/Library/PlatformInitLib.h
+++ b/OvmfPkg/Include/Library/PlatformInitLib.h
@@ -15,6 +15,22 @@
typedef struct {
EFI_HOB_GUID_TYPE GuidHeader;
UINT16 HostBridgePciDevId;
+ BOOLEAN PcdSetNxForStack;
+
+ UINT64 PcdConfidentialComputingGuestAttr;
+ BOOLEAN PcdIa32EferChangeAllowed;
+ UINT64 PcdTdxSharedBitMask;
+
+ UINT64 PcdPciMmio64Base;
+ UINT64 PcdPciMmio64Size;
+ UINT32 PcdPciMmio32Base;
+ UINT32 PcdPciMmio32Size;
+ UINT64 PcdPciIoBase;
+ UINT64 PcdPciIoSize;
+
+ UINT64 PcdEmuVariableNvStoreReserved;
+ UINT32 PcdCpuBootLogicalProcessorNumber;
+ UINT32 PcdCpuMaxLogicalProcessorNumber;
} EFI_HOB_PLATFORM_INFO;
#pragma pack()
--
2.29.2.windows.2
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