diff options
| author | Jiaxin Wu <jiaxin.wu@intel.com> | 2024-04-08 09:08:23 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-05-08 01:53:58 +0000 |
| commit | 3dfd64305b7f46da6f98ae15c87227b0fb55f726 (patch) | |
| tree | 8ac2c279f68c3d6f3d4d7186f6e3ae7fa3256e3a /OvmfPkg/Library/SmmRelocationLib/SmmRelocationLib.inf | |
| parent | 47f212295f17ef2473b37e3e8cfbddd411ad85ea (diff) | |
| download | edk2-3dfd64305b7f46da6f98ae15c87227b0fb55f726.tar.gz | |
OvmfPkg/SmmRelocationLib: Add library instance for OVMF
There are below 2 differences between AMD & OVMF according
existing implementation:
1.The mode of the CPU check is different between the AMD & OVMF.
OVMF:
CpuSaveState->x86.SMMRevId & 0Xffff
AMD:
LMAValue = (UINT32)AsmReadMsr64 (EFER_ADDRESS) & LMA
2.Existing SmBase configuration is different between the
AMD & OVMF.
OVMF:
if ((CpuSaveState->x86.SMMRevId & 0xFFFF) == 0) {
CpuSaveState->x86.SMBASE = mSmBaseForAllCpus[CpuIndex];
} else {
CpuSaveState->x64.SMBASE = mSmBaseForAllCpus[CpuIndex];
}
AMD:
AmdCpuState->x64.SMBASE = mSmBaseForAllCpus[CpuIndex];
This patch provides the SmmRelocationLib library instance
for OVMF to handle the logic difference, and it won't change
the existing implementation code logic.
Cc: Ray Ni <ray.ni@intel.com>
Cc: Zeng Star <star.zeng@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Signed-off-by: Jiaxin Wu <jiaxin.wu@intel.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Jiewen Yao <Jiewen.yao@intel.com>
Diffstat (limited to 'OvmfPkg/Library/SmmRelocationLib/SmmRelocationLib.inf')
| -rw-r--r-- | OvmfPkg/Library/SmmRelocationLib/SmmRelocationLib.inf | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/OvmfPkg/Library/SmmRelocationLib/SmmRelocationLib.inf b/OvmfPkg/Library/SmmRelocationLib/SmmRelocationLib.inf new file mode 100644 index 0000000000..3ea6a1a0bc --- /dev/null +++ b/OvmfPkg/Library/SmmRelocationLib/SmmRelocationLib.inf @@ -0,0 +1,60 @@ +## @file
+# SMM Relocation Lib for each processor.
+#
+# This Lib produces the SMM_BASE_HOB in HOB database which tells
+# the PiSmmCpuDxeSmm driver (runs at a later phase) about the new
+# SMBASE for each processor. PiSmmCpuDxeSmm driver installs the
+# SMI handler at the SMM_BASE_HOB.SmBase[Index]+0x8000 for processor
+# Index.
+#
+# Copyright (c) 2024, Intel Corporation. All rights reserved.<BR>
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+##
+
+[Defines]
+ INF_VERSION = 0x00010005
+ BASE_NAME = SmmRelocationLib
+ FILE_GUID = 51834F51-CCE0-4743-B553-935D0C8A53FF
+ MODULE_TYPE = PEIM
+ VERSION_STRING = 1.0
+ LIBRARY_CLASS = SmmRelocationLib
+
+[Sources]
+ InternalSmmRelocationLib.h
+ SmramSaveStateConfig.c
+ SmmRelocationLib.c
+
+[Sources.Ia32]
+ Ia32/Semaphore.c
+ Ia32/SmmInit.nasm
+
+[Sources.X64]
+ X64/Semaphore.c
+ X64/SmmInit.nasm
+
+[Packages]
+ MdePkg/MdePkg.dec
+ MdeModulePkg/MdeModulePkg.dec
+ UefiCpuPkg/UefiCpuPkg.dec
+
+[LibraryClasses]
+ BaseLib
+ BaseMemoryLib
+ CpuExceptionHandlerLib
+ DebugLib
+ HobLib
+ LocalApicLib
+ MemoryAllocationLib
+ PcdLib
+ PeiServicesLib
+
+[Guids]
+ gSmmBaseHobGuid ## HOB ALWAYS_PRODUCED
+ gEfiSmmSmramMemoryGuid ## CONSUMES
+
+[Pcd]
+ gUefiCpuPkgTokenSpaceGuid.PcdCpuMaxLogicalProcessorNumber
+
+[FeaturePcd]
+ gUefiCpuPkgTokenSpaceGuid.PcdCpuHotPlugSupport ## CONSUMES
|