ArmPlatformPkg/ArmVExpressPkg: Remove the last 16MB of the 32bit DRAM region

Trusted Firmware will declare this region of DRAM as secure.
There is no way for the non-secure world to access this memory region.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>
git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15511 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-FVP-AArch64.dsc b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-FVP-AArch64.dsc
index 4bab6d62f0dde25781f768cac66feba221b132b3..16c355f8f891307e825ae818408fddc71ce5328d 100644 (file)
--- a/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-FVP-AArch64.dsc
+++ b/ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-FVP-AArch64.dsc
@@ -114,9 +114,9 @@
   gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize|0x4000\r
   gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize|0x1000\r
 \r
   gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize|0x4000\r
   gArmPlatformTokenSpaceGuid.PcdCPUCoreSecondaryStackSize|0x1000\r
 \r

-  # System Memory (2GB)\r
+  # System Memory (2GB - 16MB of Trusted DRAM at the top of the 32bit address space)\r

   gArmTokenSpaceGuid.PcdSystemMemoryBase|0x80000000\r
   gArmTokenSpaceGuid.PcdSystemMemoryBase|0x80000000\r

-  gArmTokenSpaceGuid.PcdSystemMemorySize|0x80000000\r
+  gArmTokenSpaceGuid.PcdSystemMemorySize|0x7F000000\r

 \r
   # Size of the region used by UEFI in permanent memory (Reserved 64MB)\r
   gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize|0x04000000\r
 \r
   # Size of the region used by UEFI in permanent memory (Reserved 64MB)\r
   gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize|0x04000000\r