diff options
Diffstat (limited to 'UefiCpuPkg/SecCore/SecBist.c')
| -rw-r--r-- | UefiCpuPkg/SecCore/SecBist.c | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/UefiCpuPkg/SecCore/SecBist.c b/UefiCpuPkg/SecCore/SecBist.c index 10bebbca74..dd5c5e5eda 100644 --- a/UefiCpuPkg/SecCore/SecBist.c +++ b/UefiCpuPkg/SecCore/SecBist.c @@ -14,6 +14,26 @@ #include "SecMain.h"
+EFI_SEC_PLATFORM_INFORMATION_PPI mSecPlatformInformation = {
+ SecPlatformInformationBist
+};
+
+EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformInformation = {
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEfiSecPlatformInformationPpiGuid,
+ &mSecPlatformInformation
+};
+
+EFI_SEC_PLATFORM_INFORMATION2_PPI mSecPlatformInformation2 = {
+ SecPlatformInformation2Bist
+};
+
+EFI_PEI_PPI_DESCRIPTOR mPeiSecPlatformInformation2 = {
+ (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEfiSecPlatformInformation2PpiGuid,
+ &mSecPlatformInformation2
+};
+
/**
Worker function to parse CPU BIST information from Guided HOB.
@@ -179,3 +199,70 @@ GetBistInfoFromPpi ( return EFI_DEVICE_ERROR;
}
+
+/**
+ Get CPUs' BIST by calling SecPlatformInformationPpi/SecPlatformInformation2Ppi.
+
+**/
+VOID
+RepublishSecPlatformInformationPpi (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+ CONST EFI_PEI_SERVICES **PeiServices;
+ UINT64 BistInformationSize;
+ VOID *BistInformationData;
+ EFI_PEI_PPI_DESCRIPTOR *SecInformationDescriptor;
+
+ PeiServices = GetPeiServicesTablePointer ();
+ Status = GetBistInfoFromPpi (
+ PeiServices,
+ &gEfiSecPlatformInformation2PpiGuid,
+ &SecInformationDescriptor,
+ &BistInformationData,
+ &BistInformationSize
+ );
+ if (Status == EFI_SUCCESS) {
+ BuildGuidDataHob (
+ &gEfiCallerIdGuid,
+ BistInformationData,
+ (UINTN) BistInformationSize
+ );
+ //
+ // The old SecPlatformInformation data is on CAR.
+ // After memory discovered, we should never get it from CAR, or the data will be crashed.
+ // So, we reinstall SecPlatformInformation PPI here.
+ //
+ Status = PeiServicesReInstallPpi (
+ SecInformationDescriptor,
+ &mPeiSecPlatformInformation2
+ );
+ } if (Status == EFI_NOT_FOUND) {
+ Status = GetBistInfoFromPpi (
+ PeiServices,
+ &gEfiSecPlatformInformationPpiGuid,
+ &SecInformationDescriptor,
+ &BistInformationData,
+ &BistInformationSize
+ );
+ if (Status == EFI_SUCCESS) {
+ BuildGuidDataHob (
+ &gEfiCallerIdGuid,
+ BistInformationData,
+ (UINTN) BistInformationSize
+ );
+ //
+ // The old SecPlatformInformation2 data is on CAR.
+ // After memory discovered, we should never get it from CAR, or the data will be crashed.
+ // So, we reinstall SecPlatformInformation2 PPI here.
+ //
+ Status = PeiServicesReInstallPpi (
+ SecInformationDescriptor,
+ &mPeiSecPlatformInformation
+ );
+ }
+ }
+
+ ASSERT_EFI_ERROR(Status);
+}
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