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UefiCpuPkg/CpuDxe: clean up PAGE_TABLE_LIB_PAGING_CONTEXT usage.

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REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1039

Current implementation not checks system mode before using
PAGE_TABLE_LIB_PAGING_CONTEXT.ContextData.X64 or
PAGE_TABLE_LIB_PAGING_CONTEXT.ContextData.Ia32. This patch check the
mode before using the correct one.

Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Dong, Eric
2019-09-12 13:22:18 +08:00
committed by Eric Dong
parent a3596a040b
commit c70fef962e
5 changed files with 112 additions and 16 deletions
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34
UefiCpuPkg/CpuDxe/X64/PagingAttribute.c Normal file
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/** @file
Return Paging attribute.
Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include "CpuPageTable.h"
/**
Get paging details.
@param PagingContextData The paging context.
@param PageTableBase Return PageTableBase field.
@param Attributes Return Attributes field.
**/
VOID
GetPagingDetails (
IN PAGE_TABLE_LIB_PAGING_CONTEXT_DATA *PagingContextData,
OUT UINTN **PageTableBase OPTIONAL,
OUT UINT32 **Attributes OPTIONAL
)
{
if (PageTableBase != NULL) {
*PageTableBase = &PagingContextData->X64.PageTableBase;
}
if (Attributes != NULL) {
*Attributes = &PagingContextData->X64.Attributes;
}
}