diff options
| -rw-r--r-- | SecurityPkg/Tcg/Tcg2PlatformPei/Tcg2PlatformPei.c | 107 | ||||
| -rw-r--r-- | SecurityPkg/Tcg/Tcg2PlatformPei/Tcg2PlatformPei.inf | 52 |
2 files changed, 159 insertions, 0 deletions
diff --git a/SecurityPkg/Tcg/Tcg2PlatformPei/Tcg2PlatformPei.c b/SecurityPkg/Tcg/Tcg2PlatformPei/Tcg2PlatformPei.c new file mode 100644 index 0000000..66ec75a --- /dev/null +++ b/SecurityPkg/Tcg/Tcg2PlatformPei/Tcg2PlatformPei.c @@ -0,0 +1,107 @@ +/** @file
+
+Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+Copyright (c) Microsoft Corporation.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include <PiPei.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/DebugLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/MemoryAllocationLib.h>
+#include <Library/HobLib.h>
+#include <Library/Tpm2CommandLib.h>
+#include <Library/Tpm2DeviceLib.h>
+#include <Library/TpmPlatformHierarchyLib.h>
+#include <Library/RngLib.h>
+
+#include <Ppi/EndOfPeiPhase.h>
+
+#define MAX_NEW_AUTHORIZATION_SIZE SHA512_DIGEST_SIZE
+
+/**
+ This function handles PlatformInit task at the end of PEI
+
+ @param[in] PeiServices Pointer to PEI Services Table.
+ @param[in] NotifyDesc Pointer to the descriptor for the Notification event that
+ caused this function to execute.
+ @param[in] Ppi Pointer to the PPI data associated with this function.
+
+ @retval EFI_SUCCESS The function completes successfully
+ @retval others
+**/
+EFI_STATUS
+EFIAPI
+PlatformInitEndOfPei (
+ IN CONST EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ )
+{
+ VOID *TcgEventLog;
+
+ //
+ // Try to get TcgEventLog in S3 to see if S3 error is reported.
+ //
+ TcgEventLog = GetFirstGuidHob(&gTcgEventEntryHobGuid);
+ if (TcgEventLog == NULL) {
+ TcgEventLog = GetFirstGuidHob(&gTcgEvent2EntryHobGuid);
+ }
+
+ if (TcgEventLog == NULL) {
+ //
+ // no S3 error reported
+ //
+ return EFI_SUCCESS;
+ }
+
+ //
+ // If there is S3 error on TPM_SU_STATE and success on TPM_SU_CLEAR,
+ // configure the TPM Platform Hierarchy.
+ //
+ ConfigureTpmPlatformHierarchy ();
+
+ return EFI_SUCCESS;
+}
+
+static EFI_PEI_NOTIFY_DESCRIPTOR mEndOfPeiNotifyList = {
+ (EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
+ &gEfiEndOfPeiSignalPpiGuid,
+ (EFI_PEIM_NOTIFY_ENTRY_POINT)PlatformInitEndOfPei
+};
+
+/**
+ Main entry
+
+ @param[in] FileHandle Handle of the file being invoked.
+ @param[in] PeiServices Pointer to PEI Services table.
+
+ @retval EFI_SUCCESS Install function successfully.
+
+**/
+EFI_STATUS
+EFIAPI
+Tcg2PlatformPeiEntryPoint (
+ IN EFI_PEI_FILE_HANDLE FileHandle,
+ IN CONST EFI_PEI_SERVICES **PeiServices
+ )
+{
+ EFI_STATUS Status;
+ EFI_BOOT_MODE BootMode;
+
+ Status = PeiServicesGetBootMode (&BootMode);
+ ASSERT_EFI_ERROR(Status);
+
+ if (BootMode != BOOT_ON_S3_RESUME) {
+ return EFI_SUCCESS;
+ }
+
+ //
+ // Performing PlatformInitEndOfPei after EndOfPei PPI produced
+ //
+ Status = PeiServicesNotifyPpi (&mEndOfPeiNotifyList);
+
+ return Status;
+}
diff --git a/SecurityPkg/Tcg/Tcg2PlatformPei/Tcg2PlatformPei.inf b/SecurityPkg/Tcg/Tcg2PlatformPei/Tcg2PlatformPei.inf new file mode 100644 index 0000000..579f09b --- /dev/null +++ b/SecurityPkg/Tcg/Tcg2PlatformPei/Tcg2PlatformPei.inf @@ -0,0 +1,52 @@ +### @file
+#
+# Copyright (c) 2017, Intel Corporation. All rights reserved.<BR>
+#
+# SPDX-License-Identifier: BSD-2-Clause-Patent
+#
+###
+
+[Defines]
+ INF_VERSION = 0x00010017
+ BASE_NAME = Tcg2PlatformPei
+ FILE_GUID = 47727552-A54B-4A84-8CC1-BFF23E239636
+ VERSION_STRING = 1.0
+ MODULE_TYPE = PEIM
+ ENTRY_POINT = Tcg2PlatformPeiEntryPoint
+
+#
+# The following information is for reference only and not required by the build tools.
+#
+# VALID_ARCHITECTURES = IA32 X64 IPF EBC
+#
+
+[LibraryClasses]
+ PcdLib
+ BaseMemoryLib
+ MemoryAllocationLib
+ PeiServicesLib
+ PeimEntryPoint
+ DebugLib
+ Tpm2DeviceLib
+ Tpm2CommandLib
+ TpmPlatformHierarchyLib
+ RngLib
+
+[Packages]
+ MdePkg/MdePkg.dec
+ SecurityPkg/SecurityPkg.dec
+ MinPlatformPkg/MinPlatformPkg.dec
+
+[Sources]
+ Tcg2PlatformPei.c
+
+[Guids]
+ gTcgEventEntryHobGuid
+ gTcgEvent2EntryHobGuid
+
+[Ppis]
+ gEfiEndOfPeiSignalPpiGuid
+
+[Depex]
+ gEfiTpmDeviceSelectedGuid
+
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