diff options
| -rw-r--r-- | MdePkg/Include/Protocol/CcMeasurement.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/MdePkg/Include/Protocol/CcMeasurement.h b/MdePkg/Include/Protocol/CcMeasurement.h index af9d8d1bc6..5d9772ebe9 100644 --- a/MdePkg/Include/Protocol/CcMeasurement.h +++ b/MdePkg/Include/Protocol/CcMeasurement.h @@ -10,6 +10,7 @@ capability.
Copyright (c) 2020 - 2021, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2025, Arm Limited. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
@@ -59,6 +60,33 @@ typedef UINT32 EFI_CC_MR_INDEX; #define TDX_MR_INDEX_RTMR2 3
#define TDX_MR_INDEX_RTMR3 4
+/**
+ Macro definitions for mapping CC Measurement indices to Arm CCA
+ Realm measurement registers.
+
+ The mapping between the TPM PCR index and the Arm CCA Realm
+ Extensible measurement as defined by the UEFI specification
+ in section 38.4.3 Arm Confidential Compute Architecture Extension.
+
+ The following table shows the TPM PCR index mapping and CC event log
+ measurement register index interpretation for Arm CCA where:
+ - RIM means Realm Initial Measurement Register and
+ - REM means Realm Extensible Measurement Register
+
+ TPM PCR Index | CC Measurement | Arm CCA-measurement |
+ | Register Index | register |
+ -------------------------------------------------------
+ 0 | 0 | RIM |
+ 1, 7 | 1 | REM[0] |
+ 2~6 | 2 | REM[1] |
+ 8~15 | 3 | REM[2] |
+*/
+#define ARMCCA_MR_INDEX_0_RIM 0
+#define ARMCCA_MR_INDEX_1_REM0 1
+#define ARMCCA_MR_INDEX_2_REM1 2
+#define ARMCCA_MR_INDEX_3_REM2 3
+#define ARMCCA_MR_INDEX_INVALID 4
+
#define EFI_CC_EVENT_LOG_FORMAT_TCG_2 0x00000002
#define EFI_CC_BOOT_HASH_ALG_SHA384 0x00000004
|