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| author | jyao1 <jyao1@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-21 03:45:35 +0000 |
|---|---|---|
| committer | jyao1 <jyao1@6f19259b-4bc3-4df7-8a09-765794883524> | 2011-09-21 03:45:35 +0000 |
| commit | 378175d2584ab0d52922308f6a18e710a36152ef (patch) | |
| tree | efa351a1097b3363614fc5ff84b16597edf24d92 /UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c | |
| parent | 125887e7e8a8ad0ed40225ffef5db722491b85a5 (diff) | |
| download | edk2-378175d2584ab0d52922308f6a18e710a36152ef.tar.gz edk2-378175d2584ab0d52922308f6a18e710a36152ef.tar.bz2 edk2-378175d2584ab0d52922308f6a18e710a36152ef.zip | |
Add PCD for 1G page table
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
Diffstat (limited to 'UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c')
| -rw-r--r-- | UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c index 110b376d45..3afd0ff0e3 100644 --- a/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c +++ b/UefiCpuPkg/Universal/Acpi/S3Resume2Pei/S3Resume.c @@ -518,11 +518,13 @@ RestoreS3PageTables ( S3NvsPageTableAddress += SIZE_4KB;
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;
+ }
}
}
|