diff options
| -rw-r--r-- | ArmPkg/Drivers/CpuDxe/Arm/Mmu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/ArmPkg/Drivers/CpuDxe/Arm/Mmu.c b/ArmPkg/Drivers/CpuDxe/Arm/Mmu.c index b6ba975b35..89e429925b 100644 --- a/ArmPkg/Drivers/CpuDxe/Arm/Mmu.c +++ b/ArmPkg/Drivers/CpuDxe/Arm/Mmu.c @@ -680,6 +680,13 @@ SetMemoryAttributes ( {
EFI_STATUS Status;
+ //
+ // Ignore invocations that only modify permission bits
+ //
+ if ((Attributes & EFI_MEMORY_CACHETYPE_MASK) == 0) {
+ return EFI_SUCCESS;
+ }
+
if(((BaseAddress & 0xFFFFF) == 0) && ((Length & 0xFFFFF) == 0)) {
// Is the base and length a multiple of 1 MB?
DEBUG ((EFI_D_PAGE, "SetMemoryAttributes(): MMU section 0x%x length 0x%x to %lx\n", (UINTN)BaseAddress, (UINTN)Length, Attributes));
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