diff options
Diffstat (limited to 'UefiPayloadPkg')
| -rw-r--r-- | UefiPayloadPkg/Library/PciHostBridgeLib/PciHostBridgeSupport.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/UefiPayloadPkg/Library/PciHostBridgeLib/PciHostBridgeSupport.c b/UefiPayloadPkg/Library/PciHostBridgeLib/PciHostBridgeSupport.c index 8a890b6b53..e1faa24ae7 100644 --- a/UefiPayloadPkg/Library/PciHostBridgeLib/PciHostBridgeSupport.c +++ b/UefiPayloadPkg/Library/PciHostBridgeLib/PciHostBridgeSupport.c @@ -354,14 +354,19 @@ ScanForRootBridges ( Base = ((UINT32)Pci.Bridge.PrefetchableMemoryBase & 0xfff0) << 16;
Limit = (((UINT32)Pci.Bridge.PrefetchableMemoryLimit & 0xfff0)
<< 16) | 0xfffff;
- MemAperture = &Mem;
+
if (Value == BIT0) {
- Base |= LShiftU64 (Pci.Bridge.PrefetchableBaseUpper32, 32);
- Limit |= LShiftU64 (Pci.Bridge.PrefetchableLimitUpper32, 32);
- MemAperture = &MemAbove4G;
+ Base |= LShiftU64 (Pci.Bridge.PrefetchableBaseUpper32, 32);
+ Limit |= LShiftU64 (Pci.Bridge.PrefetchableLimitUpper32, 32);
}
if ((Base > 0) && (Base < Limit)) {
+ if (Base < BASE_4GB) {
+ MemAperture = &Mem;
+ } else {
+ MemAperture = &MemAbove4G;
+ }
+
if (MemAperture->Base > Base) {
MemAperture->Base = Base;
}
|