Branch: refs/heads/master
Home: https://github.com/tianocore/edk2
Commit: 93ee30067582f325c951505c835f5c5b85649148
https://github.com/tianocore/edk2/commit/93ee30067582f325c951505c835f5c5b85649148
Author: Kun Qin <[email protected]>
Date: 2026-07-30 (Thu, 30 Jul 2026)
Changed paths:
M ArmPkg/Include/Library/ArmStandaloneMmCoreEntryPoint.h
M
ArmPkg/Library/ArmStandaloneMmCoreEntryPoint/ArmStandaloneMmCoreEntryPoint.c
Log Message:
-----------
ArmPkg: StandaloneMmCoreEntryPoint: Use ARM_FFA_ARGS for misc buffer
The MISC_MM_COMMUNICATE_BUFFER stored the FF-A direct message
registers in a DIRECT_MSG_ARGS structure. Populating and reading it
required manually re-indexing every register (EventSvcArgs->Arg4..Arg17
into DirectMsgArgs.Arg0..Arg13). This shifted the register positions and
left the buffer layout inconsistent with the raw FF-A argument register
file, making it error prone to correlate a slot with its architectural
register.
Signed-off-by: Kun Qin <[email protected]>
Commit: bdd36cdc1a1fb411bc8edc5f8ec81115be99ab48
https://github.com/tianocore/edk2/commit/bdd36cdc1a1fb411bc8edc5f8ec81115be99ab48
Author: Kun Qin <[email protected]>
Date: 2026-07-30 (Thu, 30 Jul 2026)
Changed paths:
M SecurityPkg/Tcg/Tcg2StandaloneMmArm/Tcg2StandaloneMmArm.c
Log Message:
-----------
SecurityPkg: Tcg2StandaloneMmArm: Align PP buffer with ARM_FFA_ARGS
The misc MM communicate buffer now stores the FF-A direct message
registers in an ARM_FFA_ARGS layout that preserves the native register
indices. The TCG physical presence callback must therefore locate the
TCG_NVS payload at the correct register offset instead of the start of
the communication buffer.
Point LocalTcgNvs at CommBuffer + OFFSET_OF (ARM_FFA_ARGS, Arg4) and
validate the buffer size against sizeof (ARM_FFA_ARGS). Add a
STATIC_ASSERT to guarantee TCG_NVS fits within the register space
available for the direct message payload, and include ArmFfaLib.h for
the ARM_FFA_ARGS definition.
Signed-off-by: Kun Qin <[email protected]>
Compare: https://github.com/tianocore/edk2/compare/b3f19fb5ce9e...bdd36cdc1a1f
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