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Add PCD for 1G page table

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signed off by: jyao1
reviewed by: jfan12

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@12397 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
jyao1
2011-09-21 03:45:35 +00:00
parent 125887e7e8
commit 378175d258
9 changed files with 42 additions and 20 deletions
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3
MdeModulePkg/Universal/CapsulePei/CapsulePei.inf
View File

@@ -68,6 +68,9 @@
[Pcd.IA32]
gEfiMdeModulePkgTokenSpaceGuid.PcdCapsuleCoalesceFile
[Pcd.IA32]
gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable
[FeaturePcd.IA32]
gEfiMdeModulePkgTokenSpaceGuid.PcdDxeIplSwitchToLongMode

12
MdeModulePkg/Universal/CapsulePei/UefiCapsule.c
View File

@@ -63,11 +63,13 @@ CalculatePageTableSize (
BOOLEAN Page1GSupport;
Page1GSupport = FALSE;
AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
if (RegEax >= 0x80000001) {
AsmCpuid (0x80000001, NULL, NULL, NULL, &RegEdx);
if ((RegEdx & BIT26) != 0) {
Page1GSupport = TRUE;
if (PcdGetBool(PcdUse1GPageTable)) {
AsmCpuid (0x80000000, &RegEax, NULL, NULL, NULL);
if (RegEax >= 0x80000001) {
AsmCpuid (0x80000001, NULL, NULL, NULL, &RegEdx);
if ((RegEdx & BIT26) != 0) {
Page1GSupport = TRUE;
}
}
}