Which patch removes this HOB creation from SmmAccess driver?
Thanks,
Ray
From: Wu, Jiaxin
Sent: Wednesday, April 10, 2024 21:57
To: devel@edk2.groups.io
Cc: Ard Biesheuvel ; Yao, Jiewen
; Gerd Hoffmann ; Ni, Ray
Subject: [PATCH v1 10/13] OvmfPkg/PlatformInitLib: Create gEfiAcpiVariableGuid
This patch is for OVMF to create the gEfiAcpiVariableGuid
since it has been removed from the SmmAccess driver.
Cc: Ard Biesheuvel
Cc: Jiewen Yao
Cc: Gerd Hoffmann
Cc: Ray Ni
Signed-off-by: Jiaxin Wu
---
OvmfPkg/Library/PlatformInitLib/MemDetect.c | 9 +
OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf | 1 +
2 files changed, 10 insertions(+)
diff --git a/OvmfPkg/Library/PlatformInitLib/MemDetect.c
b/OvmfPkg/Library/PlatformInitLib/MemDetect.c
index 8b98256225..f451c9d80c 100644
--- a/OvmfPkg/Library/PlatformInitLib/MemDetect.c
+++ b/OvmfPkg/Library/PlatformInitLib/MemDetect.c
@@ -41,10 +41,11 @@ Module Name:
#include
#include
#include
+#include
#include
#define MEGABYTE_SHIFT 20
VOID
@@ -1050,10 +1051,11 @@ PlatformQemuInitializeRam (
UINT32 TsegSize;
UINTN BufferSize;
UINT8 SmramRanges;
EFI_PEI_HOB_POINTERSHob;
EFI_SMRAM_HOB_DESCRIPTOR_BLOCK *SmramHobDescriptorBlock;
+VOID*GuidHob;
TsegSize = PlatformInfoHob->Q35TsegMbytes * SIZE_1MB;
PlatformAddMemoryRangeHob (BASE_1MB, PlatformInfoHob->LowMemory -
TsegSize);
PlatformAddReservedMemoryBaseSizeHob (
PlatformInfoHob->LowMemory - TsegSize,
@@ -1080,10 +1082,17 @@ PlatformQemuInitializeRam (
SmramHobDescriptorBlock->Descriptor[0].PhysicalStart =
PlatformInfoHob->LowMemory - TsegSize;
SmramHobDescriptorBlock->Descriptor[0].CpuStart =
PlatformInfoHob->LowMemory - TsegSize;
SmramHobDescriptorBlock->Descriptor[0].PhysicalSize = EFI_PAGE_SIZE;
SmramHobDescriptorBlock->Descriptor[0].RegionState = EFI_SMRAM_CLOSED |
EFI_CACHEABLE | EFI_ALLOCATED;
+//
+// Create gEfiAcpiVariableGuid
+//
+GuidHob = BuildGuidHob (&gEfiAcpiVariableGuid, sizeof
(EFI_SMRAM_DESCRIPTOR));
+ASSERT (GuidHob != NULL);
+CopyMem (GuidHob, &SmramHobDescriptorBlock->Descriptor[0], sizeof
(EFI_SMRAM_DESCRIPTOR));
+
//
// Create second SMRAM descriptor, which is free and will be used by SMM
foundation.
//
SmramHobDescriptorBlock->Descriptor[1].PhysicalStart =
SmramHobDescriptorBlock->Descriptor[0].PhysicalStart + EFI_PAGE_SIZE;
SmramHobDescriptorBlock->Descriptor[1].CpuStart =
SmramHobDescriptorBlock->Descriptor[0].CpuStart + EFI_PAGE_SIZE;
diff --git a/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf
b/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf
index 2bb1c0296f..21e6efa5e0 100644
--- a/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf
+++ b/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf
@@ -56,10 +56,11 @@
[LibraryClasses.X64]
TdxLib
[Guids]
gEfiSmmSmramMemoryGuid
+ gEfiAcpiVariableGuid
[Pcd]
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable
--
2.16.2.windows.1
-=-=-=-=-=-=-=-=-=-=-=-
Groups.io Links: You receive all messages sent to this group.
View/Reply Online (#117621): https://edk2.groups.io/g/devel/message/117621
Mute This Topic: https://groups.io/mt/105442002/21656
Group Owner: devel+ow...@edk2.groups.io
Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com]
-=-=-=-=-=-=-=-=-=-=-=-
