sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

ArmPkg/CpuDxe: Fixed AArch64 MMU/GCD synchronization

Browse Source 
- 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
This commit is contained in:
Olivier Martin
2013-08-19 17:33:31 +00:00
committed by oliviermartin
parent 6a343fac2c
commit 047c0cbb1e
2 changed files with 17 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
ArmPkg/Drivers/CpuDxe/AArch64/Mmu.c
View File

@@ -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);