diff options
| author | Yao, Jiewen <Jiewen.Yao@intel.com> | 2015-08-13 08:24:17 +0000 |
|---|---|---|
| committer | jyao1 <jyao1@Edk2> | 2015-08-13 08:24:17 +0000 |
| commit | 1abfa4ce4835639c66ae82cc0d72cffcf3f28b6b (patch) | |
| tree | 9688e07a23a004cf3cc14d5cbb119fc4f0cd5495 /SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.c | |
| parent | 59b226d6d7e2b9e6ea8751abb366dd1a7d643a4c (diff) | |
| download | edk2-platforms-1abfa4ce4835639c66ae82cc0d72cffcf3f28b6b.tar.xz | |
Add TPM2 support defined in trusted computing group.
TCG EFI Protocol Specification for TPM Family 2.0 Revision 1.0 Version 9 at http://www.trustedcomputinggroup.org/resources/tcg_efi_protocol_specification
TCG Physical Presence Interface Specification Version 1.30, Revision 00.52 at http://www.trustedcomputinggroup.org/resources/tcg_physical_presence_interface_specification
Add Tcg2XXX, similar file/directory as TrEEXXX. Old TrEE driver/library can be deprecated.
1) Add Tcg2Pei/Dxe/Smm driver to log event and provide services.
2) Add Dxe/Pei/SmmTcg2PhysicalPresenceLib to support TCG PP.
3) Update Tpm2 library to use TCG2 protocol instead of TrEE protocol.
Test Win8/Win10 with SecureBoot enabled, PCR7 shows bound.
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: "Yao, Jiewen" <Jiewen.Yao@intel.com>
Reviewed-by: "Zhang, Chao B" <chao.b.zhang@intel.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18219 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.c')
| -rw-r--r-- | SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.c | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.c b/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.c new file mode 100644 index 0000000000..e1a92c31f4 --- /dev/null +++ b/SecurityPkg/Library/Tpm2DeviceLibTcg2/Tpm2DeviceLibTcg2.c @@ -0,0 +1,125 @@ +/** @file
+ Ihis library is TPM2 TCG2 protocol lib.
+
+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 <Library/BaseLib.h>
+#include <Library/BaseMemoryLib.h>
+#include <Library/DebugLib.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/Tpm2DeviceLib.h>
+#include <Protocol/Tcg2Protocol.h>
+#include <IndustryStandard/Tpm20.h>
+
+EFI_TCG2_PROTOCOL *mTcg2Protocol = NULL;
+
+/**
+ This service enables the sending of commands to the TPM2.
+
+ @param[in] InputParameterBlockSize Size of the TPM2 input parameter block.
+ @param[in] InputParameterBlock Pointer to the TPM2 input parameter block.
+ @param[in,out] OutputParameterBlockSize Size of the TPM2 output parameter block.
+ @param[in] OutputParameterBlock Pointer to the TPM2 output parameter block.
+
+ @retval EFI_SUCCESS The command byte stream was successfully sent to the device and a response was successfully received.
+ @retval EFI_DEVICE_ERROR The command was not successfully sent to the device or a response was not successfully received from the device.
+ @retval EFI_BUFFER_TOO_SMALL The output parameter block is too small.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2SubmitCommand (
+ IN UINT32 InputParameterBlockSize,
+ IN UINT8 *InputParameterBlock,
+ IN OUT UINT32 *OutputParameterBlockSize,
+ IN UINT8 *OutputParameterBlock
+ )
+{
+ EFI_STATUS Status;
+ TPM2_RESPONSE_HEADER *Header;
+
+ if (mTcg2Protocol == NULL) {
+ Status = gBS->LocateProtocol (&gEfiTcg2ProtocolGuid, NULL, (VOID **) &mTcg2Protocol);
+ if (EFI_ERROR (Status)) {
+ //
+ // Tcg2 protocol is not installed. So, TPM2 is not present.
+ //
+ DEBUG ((EFI_D_ERROR, "Tpm2SubmitCommand - Tcg2 - %r\n", Status));
+ return EFI_NOT_FOUND;
+ }
+ }
+ //
+ // Assume when Tcg2 Protocol is ready, RequestUseTpm already done.
+ //
+ Status = mTcg2Protocol->SubmitCommand (
+ mTcg2Protocol,
+ InputParameterBlockSize,
+ InputParameterBlock,
+ *OutputParameterBlockSize,
+ OutputParameterBlock
+ );
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+ Header = (TPM2_RESPONSE_HEADER *)OutputParameterBlock;
+ *OutputParameterBlockSize = SwapBytes32 (Header->paramSize);
+
+ return EFI_SUCCESS;
+}
+
+/**
+ This service requests use TPM2.
+
+ @retval EFI_SUCCESS Get the control of TPM2 chip.
+ @retval EFI_NOT_FOUND TPM2 not found.
+ @retval EFI_DEVICE_ERROR Unexpected device behavior.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2RequestUseTpm (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+
+ if (mTcg2Protocol == NULL) {
+ Status = gBS->LocateProtocol (&gEfiTcg2ProtocolGuid, NULL, (VOID **) &mTcg2Protocol);
+ if (EFI_ERROR (Status)) {
+ //
+ // Tcg2 protocol is not installed. So, TPM2 is not present.
+ //
+ DEBUG ((EFI_D_ERROR, "Tpm2RequestUseTpm - Tcg2 - %r\n", Status));
+ return EFI_NOT_FOUND;
+ }
+ }
+ //
+ // Assume when Tcg2 Protocol is ready, RequestUseTpm already done.
+ //
+ return EFI_SUCCESS;
+}
+
+/**
+ This service register TPM2 device.
+
+ @param Tpm2Device TPM2 device
+
+ @retval EFI_SUCCESS This TPM2 device is registered successfully.
+ @retval EFI_UNSUPPORTED System does not support register this TPM2 device.
+ @retval EFI_ALREADY_STARTED System already register this TPM2 device.
+**/
+EFI_STATUS
+EFIAPI
+Tpm2RegisterTpm2DeviceLib (
+ IN TPM2_DEVICE_INTERFACE *Tpm2Device
+ )
+{
+ return EFI_UNSUPPORTED;
+}
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