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| 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/AmdSev/AmdSevX64.dsc | |
| parent | 47f212295f17ef2473b37e3e8cfbddd411ad85ea (diff) | |
| download | edk2-3dfd64305b7f46da6f98ae15c87227b0fb55f726.zip edk2-3dfd64305b7f46da6f98ae15c87227b0fb55f726.tar.gz edk2-3dfd64305b7f46da6f98ae15c87227b0fb55f726.tar.bz2 | |
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/AmdSev/AmdSevX64.dsc')
| -rw-r--r-- | OvmfPkg/AmdSev/AmdSevX64.dsc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/OvmfPkg/AmdSev/AmdSevX64.dsc b/OvmfPkg/AmdSev/AmdSevX64.dsc index a7540bb..8eb6f4f 100644 --- a/OvmfPkg/AmdSev/AmdSevX64.dsc +++ b/OvmfPkg/AmdSev/AmdSevX64.dsc @@ -110,6 +110,7 @@ !include MdePkg/MdeLibs.dsc.inc
[LibraryClasses]
+ SmmRelocationLib|OvmfPkg/Library/SmmRelocationLib/SmmRelocationLib.inf
PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
TimerLib|OvmfPkg/Library/AcpiTimerLib/BaseAcpiTimerLib.inf
ResetSystemLib|OvmfPkg/Library/ResetSystemLib/BaseResetSystemLib.inf
|