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ArmPlatformPkg: ASSERT that PcdSystemMemoryBase does not exceed MAX_ADDRESS 

For 32-bit ARM platforms, it is essential that system memory starts
below the 4 GB limit, since that is the only memory we can address
using the UEFI spec mandated 1:1 mapping. So assert that this is the
case.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Leif Lindholm <leif.lindholm@linaro.org>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18429 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel 2015-09-09 15:30:37 +00:00 committed by abiesheuvel
parent 5f6ed4681f
commit 78c8ec8a3f
1 changed files with 1 additions and 0 deletions
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ArmPlatformPkg/MemoryInitPei/MemoryInitPeim.c
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@ -113,6 +113,7 @@ InitializeMemory (
// Ensure PcdSystemMemorySize has been set
ASSERT (PcdGet64 (PcdSystemMemorySize) != 0);
ASSERT (PcdGet64 (PcdSystemMemoryBase) < (UINT64)MAX_ADDRESS);
SystemMemoryBase = (UINTN)PcdGet64 (PcdSystemMemoryBase);
SystemMemoryTop = SystemMemoryBase + PcdGet64 (PcdSystemMemorySize);