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SecurityPkg: Add RPMC Index to the RpmcLib 

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=2594

The re-design requires multiple RPMC counter usages.
The consumer will be capable of selecting amongst multiple counters.

Signed-off-by: Nishant C Mistry <nishant.c.mistry@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
This commit is contained in:
Nishant Mistry 2020-11-12 02:49:09 +00:00 committed by mergify[bot]
parent 098af8b408
commit 6c8dd15c4a
2 changed files with 10 additions and 2 deletions
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6
SecurityPkg/Include/Library/RpmcLib.h
View File

@ -14,6 +14,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
/** /**
Requests the monotonic counter from the designated RPMC counter. Requests the monotonic counter from the designated RPMC counter.
@param[in] CounterIndex The RPMC index
@param[out] CounterValue A pointer to a buffer to store the RPMC value. @param[out] CounterValue A pointer to a buffer to store the RPMC value.
@retval EFI_SUCCESS The operation completed successfully. @retval EFI_SUCCESS The operation completed successfully.
@ -23,12 +24,15 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
RequestMonotonicCounter ( RequestMonotonicCounter (
IN UINT8 CounterIndex,
OUT UINT32 *CounterValue OUT UINT32 *CounterValue
); );
/** /**
Increments the monotonic counter in the SPI flash device by 1. Increments the monotonic counter in the SPI flash device by 1.
@param[in] CounterIndex The RPMC index
@retval EFI_SUCCESS The operation completed successfully. @retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to update the counter. @retval EFI_DEVICE_ERROR A device error occurred while attempting to update the counter.
@retval EFI_UNSUPPORTED The operation is un-supported. @retval EFI_UNSUPPORTED The operation is un-supported.
@ -36,7 +40,7 @@ RequestMonotonicCounter (
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
IncrementMonotonicCounter ( IncrementMonotonicCounter (
VOID IN UINT8 CounterIndex
); );
#endif #endif

6
SecurityPkg/Library/RpmcLibNull/RpmcLibNull.c
View File

@ -12,6 +12,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
/** /**
Requests the monotonic counter from the designated RPMC counter. Requests the monotonic counter from the designated RPMC counter.
@param[in] CounterIndex The RPMC index
@param[out] CounterValue A pointer to a buffer to store the RPMC value. @param[out] CounterValue A pointer to a buffer to store the RPMC value.
@retval EFI_SUCCESS The operation completed successfully. @retval EFI_SUCCESS The operation completed successfully.
@ -21,6 +22,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
RequestMonotonicCounter ( RequestMonotonicCounter (
IN UINT8 CounterIndex,
OUT UINT32 *CounterValue OUT UINT32 *CounterValue
) )
{ {
@ -31,6 +33,8 @@ RequestMonotonicCounter (
/** /**
Increments the monotonic counter in the SPI flash device by 1. Increments the monotonic counter in the SPI flash device by 1.
@param[in] CounterIndex The RPMC index
@retval EFI_SUCCESS The operation completed successfully. @retval EFI_SUCCESS The operation completed successfully.
@retval EFI_DEVICE_ERROR A device error occurred while attempting to update the counter. @retval EFI_DEVICE_ERROR A device error occurred while attempting to update the counter.
@retval EFI_UNSUPPORTED The operation is un-supported. @retval EFI_UNSUPPORTED The operation is un-supported.
@ -38,7 +42,7 @@ RequestMonotonicCounter (
EFI_STATUS EFI_STATUS
EFIAPI EFIAPI
IncrementMonotonicCounter ( IncrementMonotonicCounter (
VOID IN UINT8 CounterIndex
) )
{ {
ASSERT (FALSE); ASSERT (FALSE);