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ArmPlatformPkg/PrePeiCore: Reserve some memory on the top of the stack for Global Variables in XIP code

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The size of this memory is controlled by a PCD. The Global Variable in this regsion are defined by their offset.

This memory region can be use to store the PEI Services Table Pointer.
Update the PeiServicesTablePointerLib to use this region instead of PcdPeiServicePtrAddr.



git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11803 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
oliviermartin
2011-06-11 12:03:00 +00:00
parent 936eff09c3
commit 47a8e12fe1
10 changed files with 56 additions and 28 deletions
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11
ArmPlatformPkg/ArmPlatformPkg.dec
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@@ -46,8 +46,6 @@
# Using a FeaturePcd make a '(BOOLEAN) casting for its value which is not understood by the preprocessor.
gArmPlatformTokenSpaceGuid.PcdMPCoreSupport|0|UINT32|0x00000002
gArmPlatformTokenSpaceGuid.PcdPeiServicePtrAddr|0|UINT32|0x00000003
# Stack for CPU Cores in Secure Mode
gArmPlatformTokenSpaceGuid.PcdCPUCoresSecStackBase|0|UINT32|0x00000004
gArmPlatformTokenSpaceGuid.PcdCPUCoreSecStackSize|0|UINT32|0x00000005
@@ -65,6 +63,15 @@
# Size of the region reserved for fixed address allocations (Reserved 128MB by default)
gArmPlatformTokenSpaceGuid.PcdSystemMemoryFixRegionSize|0x08000000|UINT32|0x00000014
# Size to reserve in the primary core stack for PEI Global Variables
# = sizeof(UINTN) /* PcdPeiServicePtr or HobListPtr */
gArmPlatformTokenSpaceGuid.PcdPeiGlobalVariableSize|0x4|UINT32|0x00000016
# PeiServicePtr and HobListPtr shares the same location in the PEI Global Variable list
# PeiServicePtr is only valid with PEI Core and HobListPtr only when the PEI Core is skipped.
gArmPlatformTokenSpaceGuid.PcdPeiServicePtrGlobalOffset|0x4|UINT32|0x00000017
gArmPlatformTokenSpaceGuid.PcdHobListPtrGlobalOffset|0x4|UINT32|0x00000018
#
# ARM Primecells
#