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ArmVirtPkg/ArmVirtQemu: omit PCD PEIM unless TPM support is enabled 

The TPM discovery code relies on a dynamic PCD to communicate the TPM
base address to other components. But no other code relies on dynamic
PCDs in the PEI phase so let's drop the PCD PEIM when TPM support is not
enabled.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
Ard Biesheuvel 2022-09-25 17:22:04 +02:00 committed by mergify[bot]
parent 7136d5491e
commit b6efc505e4
2 changed files with 18 additions and 6 deletions
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22
ArmVirtPkg/ArmVirtQemu.dsc
View File

@ -288,10 +288,15 @@
#
# TPM2 support
#
gEfiSecurityPkgTokenSpaceGuid.PcdTpmBaseAddress|0x0
!if $(TPM2_ENABLE) == TRUE
gEfiSecurityPkgTokenSpaceGuid.PcdTpmBaseAddress|0x0
gEfiSecurityPkgTokenSpaceGuid.PcdTpmInstanceGuid|{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
gEfiSecurityPkgTokenSpaceGuid.PcdTpm2HashMask|0
!else
[PcdsPatchableInModule]
# make this PCD patchable instead of dynamic when TPM support is not enabled
# this permits setting the PCD in unreachable code without pulling in dynamic PCD support
gEfiSecurityPkgTokenSpaceGuid.PcdTpmBaseAddress|0x0
!endif
[PcdsDynamicHii]
@ -304,6 +309,13 @@
gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|L"Timeout"|gEfiGlobalVariableGuid|0x0|5
[LibraryClasses.common.PEI_CORE, LibraryClasses.common.PEIM]
!if $(TPM2_ENABLE) == TRUE
PcdLib|MdePkg/Library/PeiPcdLib/PeiPcdLib.inf
!else
PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
!endif
################################################################################
#
# Components Section - list of all EDK II Modules needed by this Platform
@ -315,10 +327,6 @@
#
ArmPlatformPkg/PrePeiCore/PrePeiCoreUniCore.inf
MdeModulePkg/Core/Pei/PeiMain.inf
MdeModulePkg/Universal/PCD/Pei/Pcd.inf {
<LibraryClasses>
PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
}
ArmPlatformPkg/PlatformPei/PlatformPeim.inf
ArmVirtPkg/MemoryInitPei/MemoryInitPeim.inf {
<LibraryClasses>
@ -329,6 +337,10 @@
ArmPkg/Drivers/CpuPei/CpuPei.inf
!if $(TPM2_ENABLE) == TRUE
MdeModulePkg/Universal/PCD/Pei/Pcd.inf {
<LibraryClasses>
PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
}
MdeModulePkg/Universal/ResetSystemPei/ResetSystemPei.inf {
<LibraryClasses>
ResetSystemLib|ArmVirtPkg/Library/ArmVirtPsciResetSystemPeiLib/ArmVirtPsciResetSystemPeiLib.inf

2
ArmVirtPkg/ArmVirtQemu.fdf
View File

@ -109,10 +109,10 @@ READ_LOCK_STATUS = TRUE
INF ArmPlatformPkg/PlatformPei/PlatformPeim.inf
INF ArmVirtPkg/MemoryInitPei/MemoryInitPeim.inf
INF ArmPkg/Drivers/CpuPei/CpuPei.inf
INF MdeModulePkg/Universal/PCD/Pei/Pcd.inf
INF MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf
!if $(TPM2_ENABLE) == TRUE
INF MdeModulePkg/Universal/PCD/Pei/Pcd.inf
INF MdeModulePkg/Universal/ResetSystemPei/ResetSystemPei.inf
INF OvmfPkg/Tcg/Tcg2Config/Tcg2ConfigPei.inf
INF SecurityPkg/Tcg/Tcg2Pei/Tcg2Pei.inf