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ArmPkg,ArmPlatformPkg: Allow dynamic PCDs for memory base and size

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This changes the definition and a bunch of references to
gArmTokenSpaceGuid.PcdSystemMemoryBase and
gArmTokenSpaceGuid.PcdSystemMemorySize so they can be declared as dynamic PCDs
by the platform. Also, move the non-SEC call to
ArmPlatformInitializeSystemMemory() earlier, so a platform has a chance to set
these PCDs before they are first referenced.

The purpose is allowing dynamically instantiated virtual machines to declare
the system memory by passing a device tree.

Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16079 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel
2014-09-09 16:11:30 +00:00
committed by oliviermartin
parent 4f6d34b434
commit f8d7d6e151
7 changed files with 35 additions and 29 deletions
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12
ArmPkg/ArmPkg.dec
View File

@@ -105,12 +105,6 @@
gArmTokenSpaceGuid.PcdHypFvBaseAddress|0|UINT32|0x0000003C
gArmTokenSpaceGuid.PcdHypFvSize|0|UINT32|0x0000003D
# System Memory (DRAM): These PCDs define the region of in-built system memory
# Some platforms can get DRAM extensions, these additional regions will be declared
# to UEFI by ArmPlatformLib
gArmTokenSpaceGuid.PcdSystemMemoryBase|0|UINT64|0x00000029
gArmTokenSpaceGuid.PcdSystemMemorySize|0|UINT64|0x0000002A
# Use ClusterId + CoreId to identify the PrimaryCore
gArmTokenSpaceGuid.PcdArmPrimaryCoreMask|0xF03|UINT32|0x00000031
# The Primary Core is ClusterId[0] & CoreId[0]
@@ -214,6 +208,12 @@
# context of virtual machine.
#
[PcdsFixedAtBuild.common, PcdsDynamic.common]
# System Memory (DRAM): These PCDs define the region of in-built system memory
# Some platforms can get DRAM extensions, these additional regions will be declared
# to UEFI by ArmPlatformLib
gArmTokenSpaceGuid.PcdSystemMemoryBase|0|UINT64|0x00000029
gArmTokenSpaceGuid.PcdSystemMemorySize|0|UINT64|0x0000002A
#
# ARM Architectural Timer
#

3
ArmPkg/Library/BdsLib/BdsLib.inf
View File

@@ -78,10 +78,11 @@
[FeaturePcd]
gArmTokenSpaceGuid.PcdArmLinuxSpinTable
[FixedPcd]
[Pcd]
gArmTokenSpaceGuid.PcdSystemMemoryBase
gArmTokenSpaceGuid.PcdSystemMemorySize
[FixedPcd]
gArmTokenSpaceGuid.PcdArmMachineType
gArmTokenSpaceGuid.PcdArmLinuxFdtMaxOffset
gArmTokenSpaceGuid.PcdArmLinuxFdtAlignment