diff options
| -rw-r--r-- | OvmfPkg/Library/PlatformInitLib/MemDetect.c | 5 | ||||
| -rw-r--r-- | OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf | 1 |
2 files changed, 6 insertions, 0 deletions
diff --git a/OvmfPkg/Library/PlatformInitLib/MemDetect.c b/OvmfPkg/Library/PlatformInitLib/MemDetect.c index acf90b4e93..1102b00ecb 100644 --- a/OvmfPkg/Library/PlatformInitLib/MemDetect.c +++ b/OvmfPkg/Library/PlatformInitLib/MemDetect.c @@ -663,6 +663,11 @@ PlatformAddressWidthFromCpuid ( PhysBits = 40;
}
+ if (!FixedPcdGetBool (PcdUse1GPageTable) && (PhysBits > 40)) {
+ DEBUG ((DEBUG_INFO, "%a: limit PhysBits to 40 (PcdUse1GPageTable is false)\n", __func__));
+ PhysBits = 40;
+ }
+
PlatformInfoHob->PhysMemAddressWidth = PhysBits;
PlatformInfoHob->FirstNonAddress = LShiftU64 (1, PlatformInfoHob->PhysMemAddressWidth);
}
diff --git a/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf b/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf index 86a82ad3e0..5a79d95b68 100644 --- a/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf +++ b/OvmfPkg/Library/PlatformInitLib/PlatformInitLib.inf @@ -58,6 +58,7 @@ [Pcd]
gEfiMdePkgTokenSpaceGuid.PcdPciExpressBaseAddress
+ gEfiMdeModulePkgTokenSpaceGuid.PcdUse1GPageTable
[FixedPcd]
gUefiOvmfPkgTokenSpaceGuid.PcdOvmfWorkAreaBase
|