Revision: 14617
http://sourceforge.net/p/edk2/code/14617
Author: oliviermartin
Date: 2013-09-02 13:12:17 +0000 (Mon, 02 Sep 2013)
Log Message:
-----------
ArmPkg/CpuDxe: Fixed calculation of the Page Table Index (Level 2 Descriptor)
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <[email protected]>
Modified Paths:
--------------
trunk/edk2/ArmPkg/Drivers/CpuDxe/ArmV6/Mmu.c
Modified: trunk/edk2/ArmPkg/Drivers/CpuDxe/ArmV6/Mmu.c
===================================================================
--- trunk/edk2/ArmPkg/Drivers/CpuDxe/ArmV6/Mmu.c 2013-09-02 09:10:17 UTC
(rev 14616)
+++ trunk/edk2/ArmPkg/Drivers/CpuDxe/ArmV6/Mmu.c 2013-09-02 13:12:17 UTC
(rev 14617)
@@ -768,7 +768,7 @@
PageAttributes = ConvertSectionAttributesToPageAttributes
(*RegionAttributes, 0);
// Calculate index into first level translation table for start of
modification
- TableIndex = TT_DESCRIPTOR_PAGE_BASE_ADDRESS(*BaseAddress) >>
TT_DESCRIPTOR_PAGE_BASE_SHIFT;
+ TableIndex = ((*BaseAddress) & TT_DESCRIPTOR_PAGE_INDEX_MASK) >>
TT_DESCRIPTOR_PAGE_BASE_SHIFT;
ASSERT (TableIndex < TRANSLATION_TABLE_PAGE_COUNT);
// Go through the page table to find the end of the section
@@ -838,7 +838,7 @@
PageTable = (UINT32*)(SectionDescriptor &
TT_DESCRIPTOR_SECTION_PAGETABLE_ADDRESS_MASK);
// Calculate index into first level translation table for start of
modification
- PageTableIndex = TT_DESCRIPTOR_PAGE_BASE_ADDRESS (*BaseAddress) >>
TT_DESCRIPTOR_PAGE_BASE_SHIFT;
+ PageTableIndex = ((*BaseAddress) & TT_DESCRIPTOR_PAGE_INDEX_MASK) >>
TT_DESCRIPTOR_PAGE_BASE_SHIFT;
ASSERT (PageTableIndex < TRANSLATION_TABLE_PAGE_COUNT);
PageAttributes = PageTable[PageTableIndex] &
TT_DESCRIPTOR_PAGE_ATTRIBUTE_MASK;
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