1 files changed, 102 insertions, 0 deletions
diff --git a/SecurityPkg/Library/Tpm2CommandLib/Tpm2Startup.c b/SecurityPkg/Library/Tpm2CommandLib/Tpm2Startup.c
new file mode 100644
index 000000000..e8af4033c
--- /dev/null
+++ b/SecurityPkg/Library/Tpm2CommandLib/Tpm2Startup.c
@@ -0,0 +1,102 @@
+/** @file
+  Implement TPM2 Startup related command.
+
+Copyright (c) 2013, Intel Corporation. All rights reserved. <BR>
+This program and the accompanying materials
+are licensed and made available under the terms and conditions of the BSD License
+which accompanies this distribution.  The full text of the license may be found at
+http://opensource.org/licenses/bsd-license.php
+
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+
+**/
+
+#include <IndustryStandard/UefiTcgPlatform.h>
+#include <Library/Tpm2CommandLib.h>
+#include <Library/Tpm2DeviceLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/BaseLib.h>
+#include <Library/DebugLib.h>
+
+#pragma pack(1)
+
+typedef struct {
+  TPM2_COMMAND_HEADER  Header;
+  TPM_SU               StartupType;
+} TPM2_STARTUP_COMMAND;
+
+typedef struct {
+  TPM2_RESPONSE_HEADER Header;
+} TPM2_STARTUP_RESPONSE;
+
+typedef struct {
+  TPM2_COMMAND_HEADER  Header;
+  TPM_SU               ShutdownType;
+} TPM2_SHUTDOWN_COMMAND;
+
+typedef struct {
+  TPM2_RESPONSE_HEADER Header;
+} TPM2_SHUTDOWN_RESPONSE;
+
+#pragma pack()
+
+/**
+  Send Startup command to TPM2.
+
+  @param[in] StartupType           TPM_SU_CLEAR or TPM_SU_STATE
+
+  @retval EFI_SUCCESS      Operation completed successfully.
+  @retval EFI_DEVICE_ERROR Unexpected device behavior.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2Startup (
+  IN      TPM_SU             StartupType
+  )
+{
+  EFI_STATUS                        Status;
+  TPM2_STARTUP_COMMAND              Cmd;
+  TPM2_STARTUP_RESPONSE             Res;
+  UINT32                            ResultBufSize;
+
+  Cmd.Header.tag         = SwapBytes16(TPM_ST_NO_SESSIONS);
+  Cmd.Header.paramSize   = SwapBytes32(sizeof(Cmd));
+  Cmd.Header.commandCode = SwapBytes32(TPM_CC_Startup);
+  Cmd.StartupType        = SwapBytes16(StartupType);
+
+  ResultBufSize = sizeof(Res);
+  Status = Tpm2SubmitCommand (sizeof(Cmd), (UINT8 *)&Cmd, &ResultBufSize, (UINT8 *)&Res);
+
+  return Status;
+}
+
+/**
+  Send Shutdown command to TPM2.
+
+  @param[in] ShutdownType           TPM_SU_CLEAR or TPM_SU_STATE.
+
+  @retval EFI_SUCCESS      Operation completed successfully.
+  @retval EFI_DEVICE_ERROR Unexpected device behavior.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2Shutdown (
+  IN      TPM_SU             ShutdownType
+  )
+{
+  EFI_STATUS                        Status;
+  TPM2_SHUTDOWN_COMMAND             Cmd;
+  TPM2_SHUTDOWN_RESPONSE            Res;
+  UINT32                            ResultBufSize;
+
+  Cmd.Header.tag         = SwapBytes16(TPM_ST_NO_SESSIONS);
+  Cmd.Header.paramSize   = SwapBytes32(sizeof(Cmd));
+  Cmd.Header.commandCode = SwapBytes32(TPM_CC_Shutdown);
+  Cmd.ShutdownType       = SwapBytes16(ShutdownType);
+
+  ResultBufSize = sizeof(Res);
+  Status = Tpm2SubmitCommand (sizeof(Cmd), (UINT8 *)&Cmd, &ResultBufSize, (UINT8 *)&Res);
+
+  return Status;
+}