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ArmPkg/ArmLib: Added ConvertSectionAttributesToPageAttributes()

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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
This commit is contained in:
Olivier Martin
2013-08-19 17:37:50 +00:00
committed by oliviermartin
parent 09e31226c3
commit 6adbd5b4d2
3 changed files with 26 additions and 12 deletions
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7
ArmPkg/Drivers/CpuDxe/ArmV6/Mmu.c
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@@ -635,12 +635,7 @@ ConvertSectionToPages (
// Get section attributes and convert to page attributes
SectionDescriptor = FirstLevelTable[FirstLevelIdx];
PageDescriptor = TT_DESCRIPTOR_PAGE_TYPE_PAGE;
PageDescriptor |= TT_DESCRIPTOR_CONVERT_TO_PAGE_CACHE_POLICY(SectionDescriptor,0);
PageDescriptor |= TT_DESCRIPTOR_CONVERT_TO_PAGE_AP(SectionDescriptor);
PageDescriptor |= TT_DESCRIPTOR_CONVERT_TO_PAGE_XN(SectionDescriptor,0);
PageDescriptor |= TT_DESCRIPTOR_CONVERT_TO_PAGE_NG(SectionDescriptor);
PageDescriptor |= TT_DESCRIPTOR_CONVERT_TO_PAGE_S(SectionDescriptor);
PageDescriptor = TT_DESCRIPTOR_PAGE_TYPE_PAGE | ConvertSectionAttributesToPageAttributes (SectionDescriptor, FALSE);
// Allocate a page table for the 4KB entries (we use up a full page even though we only need 1KB)
Status = gBS->AllocatePages (AllocateAnyPages, EfiBootServicesData, 1, &PageTableAddr);