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-rw-r--r--ArmPkg/Library/ArmLib/Arm9/Arm9Lib.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/ArmPkg/Library/ArmLib/Arm9/Arm9Lib.c b/ArmPkg/Library/ArmLib/Arm9/Arm9Lib.c
index 1bdc439258..6b698a3356 100644
--- a/ArmPkg/Library/ArmLib/Arm9/Arm9Lib.c
+++ b/ArmPkg/Library/ArmLib/Arm9/Arm9Lib.c
@@ -52,6 +52,9 @@ FillTranslationTable (
Entry = TRANSLATION_TABLE_ENTRY_FOR_VIRTUAL_ADDRESS(TranslationTable, MemoryRegion->VirtualBase);
Sections = MemoryRegion->Length / TT_DESCRIPTOR_SECTION_SIZE;
+ // The current code does not support memory region size that is not aligned on TT_DESCRIPTOR_SECTION_SIZE boundary
+ ASSERT (MemoryRegion->Length % TT_DESCRIPTOR_SECTION_SIZE == 0);
+
for (Index = 0; Index < Sections; Index++)
{
*Entry++ = TT_DESCRIPTOR_SECTION_BASE_ADDRESS(PhysicalBase) | Attributes;