The interface proposed in this patch series intends to provide an
abstraction layer for DXE drivers to request certain memory regions to be
accessible from inside MM environment that applies total memory blockage.

The usage in VariableSmmRuntimeDxe to support runtime variable cache is
included in this patch series.

The usage in MM instance of Tcg2 to unblock NVS region is added after
separating the module into Tcg2Acpi and Tcg2 MM to support StandaloneMm.

Patch v2 branch: https://github.com/kuqin12/edk2/tree/unblock_mem_v2

Cc: Jian J Wang <jian.j.wang@...>
Cc: Hao A Wu <hao.a.wu@...>
Cc: Eric Dong <eric.dong@...>
Cc: Ray Ni <ray.ni@...>
Cc: Liming Gao <gaoliming@...>
Cc: Jiewen Yao <jiewen.yao@...>
Cc: Qi Zhang <qi1.zhang@...>
Cc: Rahul Kumar <rahul1.kumar@...>

Kun Qin (6):
MdeModulePkg: DxeMmUnblockMemoryLib: Added definition and null
instance
MdeModulePkg: VariableSmmRuntimeDxe: Added request unblock memory
interface
SecurityPkg: Tcg2Smm: Switching from gSmst to gMmst
SecurityPkg: Tcg2Smm: Separate Tcg2Smm into 2 modules
SecurityPkg: Tcg2Smm: Added support for Standalone Mm
SecurityPkg: Tcg2Acpi: Added unblock memory interface for NVS region

MdeModulePkg/Library/DxeMmUnblockMemoryLib/DxeMmUnblockMemoryLibNull.c | 40 +
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmmRuntimeDxe.c | 42 +
SecurityPkg/Library/Tcg2MmDependencyLib/Tcg2MmDependencyLib.c | 48 ++
SecurityPkg/Tcg/{Tcg2Smm/Tcg2Smm.c => Tcg2Acpi/Tcg2Acpi.c} | 356 ++++----
SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.c | 854 ++++----------------
SecurityPkg/Tcg/Tcg2Smm/Tcg2StandaloneMm.c | 71 ++
SecurityPkg/Tcg/Tcg2Smm/Tcg2TraditionalMm.c | 82 ++
MdeModulePkg/Include/Library/DxeMmUnblockMemoryLib.h | 40 +
MdeModulePkg/Library/DxeMmUnblockMemoryLib/DxeMmUnblockMemoryLibNull.inf | 29 +
MdeModulePkg/MdeModulePkg.dec | 5 +
MdeModulePkg/MdeModulePkg.dsc | 2 +
MdeModulePkg/Universal/Variable/RuntimeDxe/VariableSmmRuntimeDxe.inf | 1 +
SecurityPkg/Include/Guid/TpmNvsMm.h | 68 ++
SecurityPkg/Library/Tcg2MmDependencyLib/Tcg2MmDependencyLib.inf | 39 +
SecurityPkg/SecurityPkg.ci.yaml | 1 +
SecurityPkg/SecurityPkg.dec | 8 +
SecurityPkg/SecurityPkg.dsc | 12 +
SecurityPkg/Tcg/{Tcg2Smm/Tcg2Smm.inf => Tcg2Acpi/Tcg2Acpi.inf} | 33 +-
SecurityPkg/Tcg/{Tcg2Smm => Tcg2Acpi}/Tpm.asl | 0
SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.h | 121 +--
SecurityPkg/Tcg/Tcg2Smm/Tcg2Smm.inf | 27 +-
SecurityPkg/Tcg/Tcg2Smm/{Tcg2Smm.inf => Tcg2StandaloneMm.inf} | 50 +-
22 files changed, 896 insertions(+), 1033 deletions(-)
create mode 100644 MdeModulePkg/Library/DxeMmUnblockMemoryLib/DxeMmUnblockMemoryLibNull.c
create mode 100644 SecurityPkg/Library/Tcg2MmDependencyLib/Tcg2MmDependencyLib.c
copy SecurityPkg/Tcg/{Tcg2Smm/Tcg2Smm.c => Tcg2Acpi/Tcg2Acpi.c} (72%)
create mode 100644 SecurityPkg/Tcg/Tcg2Smm/Tcg2StandaloneMm.c
create mode 100644 SecurityPkg/Tcg/Tcg2Smm/Tcg2TraditionalMm.c
create mode 100644 MdeModulePkg/Include/Library/DxeMmUnblockMemoryLib.h
create mode 100644 MdeModulePkg/Library/DxeMmUnblockMemoryLib/DxeMmUnblockMemoryLibNull.inf
create mode 100644 SecurityPkg/Include/Guid/TpmNvsMm.h
create mode 100644 SecurityPkg/Library/Tcg2MmDependencyLib/Tcg2MmDependencyLib.inf
copy SecurityPkg/Tcg/{Tcg2Smm/Tcg2Smm.inf => Tcg2Acpi/Tcg2Acpi.inf} (76%)
rename SecurityPkg/Tcg/{Tcg2Smm => Tcg2Acpi}/Tpm.asl (100%)
copy SecurityPkg/Tcg/Tcg2Smm/{Tcg2Smm.inf => Tcg2StandaloneMm.inf} (52%)

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2.30.0.windows.1