diff options
| author | jyao1 <jyao1> | 2013-09-18 05:31:18 +0000 |
|---|---|---|
| committer | jyao1 <jyao1@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-09-18 05:31:18 +0000 |
| commit | c1d932429ef9700a2da64452546be14e92468b07 (patch) | |
| tree | 5f2c09763c54a953d5525b6b5da48634992c2aa0 /SecurityPkg/Library/Tpm2CommandLib/Tpm2Startup.c | |
| parent | 2e61fb38b6aaa17d22f1bf72332ccd4bc2f780eb (diff) | |
| download | edk2-platforms-c1d932429ef9700a2da64452546be14e92468b07.tar.xz | |
Add TPM2 implementation.
signed off by: jiewen.yao@intel.com
reviewed by: guo.dong@intel.com
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14687 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'SecurityPkg/Library/Tpm2CommandLib/Tpm2Startup.c')
| -rw-r--r-- | SecurityPkg/Library/Tpm2CommandLib/Tpm2Startup.c | 102 |
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 0000000000..e8af4033ce --- /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;
+}
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