diff options
| author | Olivier Martin <olivier.martin@arm.com> | 2013-08-19 17:37:50 +0000 |
|---|---|---|
| committer | oliviermartin <oliviermartin@6f19259b-4bc3-4df7-8a09-765794883524> | 2013-08-19 17:37:50 +0000 |
| commit | 6adbd5b4d255b15f1f2feb2e956a2fdd0683a2e2 (patch) | |
| tree | 64debd848538b693824ad2fdb1fa204b5b943b5e /ArmPkg/Library | |
| parent | 09e31226c3eb9e2859aa184c5691085ac8225d9f (diff) | |
| download | edk2-platforms-6adbd5b4d255b15f1f2feb2e956a2fdd0683a2e2.tar.xz | |
ArmPkg/ArmLib: Added ConvertSectionAttributesToPageAttributes()
This helper function converts the section attributes into their page equivalents.
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@14567 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPkg/Library')
| -rw-r--r-- | ArmPkg/Library/ArmLib/ArmV7/ArmV7Mmu.c | 25 |
1 files changed, 19 insertions, 6 deletions
diff --git a/ArmPkg/Library/ArmLib/ArmV7/ArmV7Mmu.c b/ArmPkg/Library/ArmLib/ArmV7/ArmV7Mmu.c index 0f8b814c63..d64c188dc5 100644 --- a/ArmPkg/Library/ArmLib/ArmV7/ArmV7Mmu.c +++ b/ArmPkg/Library/ArmLib/ArmV7/ArmV7Mmu.c @@ -23,6 +23,24 @@ #include "ArmV7Lib.h"
#include "ArmLibPrivate.h"
+UINT32
+ConvertSectionAttributesToPageAttributes (
+ IN UINT32 SectionAttributes,
+ IN BOOLEAN IsLargePage
+ )
+{
+ UINT32 PageAttributes;
+
+ PageAttributes = 0;
+ PageAttributes |= TT_DESCRIPTOR_CONVERT_TO_PAGE_CACHE_POLICY (SectionAttributes, IsLargePage);
+ PageAttributes |= TT_DESCRIPTOR_CONVERT_TO_PAGE_AP (SectionAttributes);
+ PageAttributes |= TT_DESCRIPTOR_CONVERT_TO_PAGE_XN (SectionAttributes, IsLargePage);
+ PageAttributes |= TT_DESCRIPTOR_CONVERT_TO_PAGE_NG (SectionAttributes);
+ PageAttributes |= TT_DESCRIPTOR_CONVERT_TO_PAGE_S (SectionAttributes);
+
+ return PageAttributes;
+}
+
STATIC
VOID
PopulateLevel2PageTable (
@@ -76,12 +94,7 @@ PopulateLevel2PageTable ( TranslationTable = ((UINTN)TranslationTable + TRANSLATION_TABLE_PAGE_ALIGNMENT_MASK) & ~TRANSLATION_TABLE_PAGE_ALIGNMENT_MASK;
// Translate the Section Descriptor into Page Descriptor
- SectionDescriptor = TT_DESCRIPTOR_PAGE_TYPE_PAGE;
- SectionDescriptor |= TT_DESCRIPTOR_CONVERT_TO_PAGE_CACHE_POLICY(*SectionEntry,0);
- SectionDescriptor |= TT_DESCRIPTOR_CONVERT_TO_PAGE_AP(*SectionEntry);
- SectionDescriptor |= TT_DESCRIPTOR_CONVERT_TO_PAGE_XN(*SectionEntry,0);
- SectionDescriptor |= TT_DESCRIPTOR_CONVERT_TO_PAGE_NG(*SectionEntry);
- SectionDescriptor |= TT_DESCRIPTOR_CONVERT_TO_PAGE_S(*SectionEntry);
+ SectionDescriptor = TT_DESCRIPTOR_PAGE_TYPE_PAGE | ConvertSectionAttributesToPageAttributes (*SectionEntry, FALSE);
BaseSectionAddress = TT_DESCRIPTOR_SECTION_BASE_ADDRESS(*SectionEntry);
|