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| author | lgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-11-09 07:54:53 +0000 |
|---|---|---|
| committer | lgao4 <lgao4@6f19259b-4bc3-4df7-8a09-765794883524> | 2010-11-09 07:54:53 +0000 |
| commit | 6eea8eaeef7442fb5ae3768faaaf0675282f327c (patch) | |
| tree | adf22ab13b44c1f08361c4c92839d4958bc87438 /MdeModulePkg/MdeModulePkg.dec | |
| parent | aeeb84bab4d8743c3f432a93d913d38bef3f612e (diff) | |
| download | edk2-platforms-6eea8eaeef7442fb5ae3768faaaf0675282f327c.tar.xz | |
Add new PCD gEfiMdeModulePkgTokenSpaceGuid.PcdMaxEfiSystemTablePointerAddress for the MdeModulePkg that allows the platform DSC file to specify the address below which the EFI_SYSTEM_TABLE_POINTER structure is allocated.
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@11018 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'MdeModulePkg/MdeModulePkg.dec')
| -rw-r--r-- | MdeModulePkg/MdeModulePkg.dec | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec index aa805630c3..83b09ec201 100644 --- a/MdeModulePkg/MdeModulePkg.dec +++ b/MdeModulePkg/MdeModulePkg.dec @@ -77,6 +77,7 @@ ## @libraryclass Debug Agent is used to provide soft debug capability.
#
DebugAgentLib|Include/Library/DebugAgentLib.h
+
[Guids]
## MdeModule package token space guid
# Include/Guid/MdeModulePkgTokenSpace.h
@@ -369,6 +370,17 @@ ## RTC Update Timeout Value
gEfiMdeModulePkgTokenSpaceGuid.PcdRealTimeClockUpdateTimeout|100000|UINT32|0x00010034
+ ## Maximum address that the DXE Core will allocate the EFI_SYSTEM_TABLE_POINTER
+ # structure. The default value for this PCD is 0, which means that the DXE Core
+ # will allocate the buffer from the EFI_SYSTEM_TABLE_POINTER structure on a 4MB
+ # boundary as close to the top of memory as feasible. If this PCD is set to a
+ # value other than 0, then the DXE Core will first attempt to allocate the
+ # EFI_SYSTEM_TABLE_POINTER structure on a 4MB boundary below the address specified
+ # by this PCD, and if that allocation fails, retry the allocation on a 4MB
+ # boundary as close to the top of memory as feasible.
+ #
+ gEfiMdeModulePkgTokenSpaceGuid.PcdMaxEfiSystemTablePointerAddress|0x0|UINT64|0x30001027
+
[PcdsPatchableInModule,PcdsDynamic]
## This PCD defines the Console output column and the default value is 25 according to UEFI spec
gEfiMdeModulePkgTokenSpaceGuid.PcdConOutRow|25|UINT32|0x40000006
|