diff options
Diffstat (limited to 'MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c')
| -rw-r--r-- | MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c index 29d80c4a23..80f2885005 100644 --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciEnumeratorSupport.c @@ -1416,6 +1416,38 @@ UpdatePciInfo ( //
if (CheckBarType (PciIoDevice, (UINT8) BarIndex, PciBarTypeMem)) {
SetFlag = TRUE;
+
+ //
+ // Ignored if granularity is 0.
+ // Ignored if PCI BAR is I/O or 32-bit memory.
+ // If PCI BAR is 64-bit memory and granularity is 32, then
+ // the PCI BAR resource is allocated below 4GB.
+ // If PCI BAR is 64-bit memory and granularity is 64, then
+ // the PCI BAR resource is allocated above 4GB.
+ //
+ if (PciIoDevice->PciBar[BarIndex].BarType == PciBarTypeMem64) {
+ switch (Ptr->AddrSpaceGranularity) {
+ case 32:
+ PciIoDevice->PciBar[BarIndex].BarType = PciBarTypeMem32;
+ case 64:
+ PciIoDevice->PciBar[BarIndex].BarTypeFixed = TRUE;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (PciIoDevice->PciBar[BarIndex].BarType == PciBarTypePMem64) {
+ switch (Ptr->AddrSpaceGranularity) {
+ case 32:
+ PciIoDevice->PciBar[BarIndex].BarType = PciBarTypePMem32;
+ case 64:
+ PciIoDevice->PciBar[BarIndex].BarTypeFixed = TRUE;
+ break;
+ default:
+ break;
+ }
+ }
}
break;
@@ -1760,6 +1792,7 @@ PciParseBar ( return Offset + 4;
}
+ PciIoDevice->PciBar[BarIndex].BarTypeFixed = FALSE;
PciIoDevice->PciBar[BarIndex].Offset = (UINT8) Offset;
if ((Value & 0x01) != 0) {
//
|