SecurityPkg/Tcg: Import Tcg2PlatformPei from edk2-platforms

Import Tcg2PlatformPei from edk2-platforms without any modifications. Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
2021-09-13 22:21:03 +08:00
parent f108178c56
commit a4867dea2a
2 changed files with 159 additions and 0 deletions
--- a/SecurityPkg/Tcg/Tcg2PlatformPei/Tcg2PlatformPei.c
+++ 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;
+}