diff options
| -rw-r--r-- | ArmPkg/Drivers/CpuDxe/Arm/Mmu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ArmPkg/Drivers/CpuDxe/Arm/Mmu.c b/ArmPkg/Drivers/CpuDxe/Arm/Mmu.c index 63da8ba8cb..14fc22d7a5 100644 --- a/ArmPkg/Drivers/CpuDxe/Arm/Mmu.c +++ b/ArmPkg/Drivers/CpuDxe/Arm/Mmu.c @@ -297,6 +297,11 @@ SyncCacheConfig ( }
NextRegionLength += TT_DESCRIPTOR_SECTION_SIZE;
} else if (TT_DESCRIPTOR_SECTION_TYPE_IS_PAGE_TABLE(FirstLevelTable[i])) {
+ // In this case any bits set in the 'NextSectionAttributes' are garbage and were set from
+ // bits that are actually part of the pagetable address. We clear it out to zero so that
+ // the SyncCacheConfigPage will use the page attributes instead of trying to convert the
+ // section attributes into page attributes
+ NextSectionAttributes = 0;
Status = SyncCacheConfigPage (
i,FirstLevelTable[i],
NumberOfDescriptors, MemorySpaceMap,
|