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| author | Olivier Martin <olivier.martin@arm.com> | 2013-08-19 17:33:31 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-08-19 17:33:31 +0000 |
| commit | 047c0cbb1e0c34e1a81c36f687c74f695d673ce4 (patch) | |
| tree | a3c143df24964980eb0d8a5f0a6bf529f8698c22 /ArmPkg/Drivers | |
| parent | 6a343fac2c0607004a7634ce6d47cfbd37685fd8 (diff) | |
| download | edk2-platforms-047c0cbb1e0c34e1a81c36f687c74f695d673ce4.tar.xz | |
ArmPkg/CpuDxe: Fixed AArch64 MMU/GCD synchronization
- Fix the length used to set the GCD Memory Space attribute
- Print a warning message if the given length of a memory space region is not 4KB-aligned
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@14562 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPkg/Drivers')
| -rw-r--r-- | ArmPkg/Drivers/CpuDxe/AArch64/Mmu.c | 18 | ||||
| -rw-r--r-- | ArmPkg/Drivers/CpuDxe/CpuMmuCommon.c | 7 |
2 files changed, 17 insertions, 8 deletions
diff --git a/ArmPkg/Drivers/CpuDxe/AArch64/Mmu.c b/ArmPkg/Drivers/CpuDxe/AArch64/Mmu.c index da6e6225be..40a4c1b0aa 100644 --- a/ArmPkg/Drivers/CpuDxe/AArch64/Mmu.c +++ b/ArmPkg/Drivers/CpuDxe/AArch64/Mmu.c @@ -89,7 +89,7 @@ GetNextEntryAttribute ( // Update GCD with the last region
SetGcdMemorySpaceAttributes (MemorySpaceMap, NumberOfDescriptors,
*StartGcdRegion,
- (BaseAddress + (Index * TT_ADDRESS_AT_LEVEL(TableLevel)) - 1) - *StartGcdRegion,
+ (BaseAddress + (Index * TT_ADDRESS_AT_LEVEL(TableLevel))) - *StartGcdRegion,
PageAttributeToGcdAttribute (EntryAttribute));
}
@@ -113,8 +113,8 @@ GetNextEntryAttribute ( // Update GCD with the last region
SetGcdMemorySpaceAttributes (MemorySpaceMap, NumberOfDescriptors,
*StartGcdRegion,
- (BaseAddress + (Index * TT_ADDRESS_AT_LEVEL(TableLevel)) - 1) - *StartGcdRegion,
- PageAttributeToGcdAttribute (EntryAttribute));
+ (BaseAddress + (Index * TT_ADDRESS_AT_LEVEL(TableLevel))) - *StartGcdRegion,
+ PageAttributeToGcdAttribute (*PrevEntryAttribute));
// Start of the new region
*StartGcdRegion = BaseAddress + (Index * TT_ADDRESS_AT_LEVEL(TableLevel));
@@ -182,11 +182,13 @@ SyncCacheConfig ( BaseAddressGcdRegion,
&PageAttribute, &BaseAddressGcdRegion);
- // Update GCD with the last region
- SetGcdMemorySpaceAttributes (MemorySpaceMap, NumberOfDescriptors,
- BaseAddressGcdRegion,
- EndAddressGcdRegion - BaseAddressGcdRegion,
- PageAttributeToGcdAttribute (PageAttribute));
+ // Update GCD with the last region if valid
+ if (PageAttribute != TT_ATTR_INDX_INVALID) {
+ SetGcdMemorySpaceAttributes (MemorySpaceMap, NumberOfDescriptors,
+ BaseAddressGcdRegion,
+ EndAddressGcdRegion - BaseAddressGcdRegion,
+ PageAttributeToGcdAttribute (PageAttribute));
+ }
FreePool (MemorySpaceMap);
diff --git a/ArmPkg/Drivers/CpuDxe/CpuMmuCommon.c b/ArmPkg/Drivers/CpuDxe/CpuMmuCommon.c index b1364820a4..e0ee9fc287 100644 --- a/ArmPkg/Drivers/CpuDxe/CpuMmuCommon.c +++ b/ArmPkg/Drivers/CpuDxe/CpuMmuCommon.c @@ -96,6 +96,13 @@ SetGcdMemorySpaceAttributes ( DEBUG ((DEBUG_GCD, "SetGcdMemorySpaceAttributes[0x%lX; 0x%lX] = 0x%lX\n",
BaseAddress, BaseAddress + Length, Attributes));
+ // We do not support a smaller granularity than 4KB on ARM Architecture
+ if ((Length & EFI_PAGE_MASK) != 0) {
+ DEBUG ((DEBUG_WARN,
+ "Warning: We do not support smaller granularity than 4KB on ARM Architecture (passed length: 0x%lX).\n",
+ Length));
+ }
+
//
// Get all memory descriptors covered by the memory range
//
|