diff options
Diffstat (limited to 'IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciLib.c')
| -rw-r--r-- | IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciLib.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciLib.c b/IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciLib.c index 16c0cce99a..70b28df0b1 100644 --- a/IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciLib.c +++ b/IntelFrameworkModulePkg/Bus/Pci/PciBusDxe/PciLib.c @@ -706,6 +706,7 @@ PciScanBus ( UINT16 BusRange;
EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
BOOLEAN BusPadding;
+ UINT32 TempReservedBusNum;
PciRootBridgeIo = Bridge->PciRootBridgeIo;
SecondBus = 0;
@@ -718,6 +719,7 @@ PciScanBus ( PciAddress = 0;
for (Device = 0; Device <= PCI_MAX_DEVICE; Device++) {
+ TempReservedBusNum = 0;
for (Func = 0; Func <= PCI_MAX_FUNC; Func++) {
//
@@ -742,7 +744,7 @@ PciScanBus ( continue;
}
- DEBUG((EFI_D_ERROR, "Found DEV(%02d,%02d,%02d)\n", StartBusNumber, Device, Func ));
+ DEBUG((EFI_D_INFO, "Found DEV(%02d,%02d,%02d)\n", StartBusNumber, Device, Func ));
if (FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {
//
@@ -930,7 +932,7 @@ PciScanBus ( EfiPciBeforeChildBusEnumeration
);
- DEBUG((EFI_D_ERROR, "Scan PPB(%02d,%02d,%02d)\n", PciDevice->BusNumber, PciDevice->DeviceNumber,PciDevice->FunctionNumber));
+ DEBUG((EFI_D_INFO, "Scan PPB(%02d,%02d,%02d)\n", PciDevice->BusNumber, PciDevice->DeviceNumber,PciDevice->FunctionNumber));
Status = PciScanBus (
PciDevice,
(UINT8) (SecondBus),
@@ -967,6 +969,28 @@ PciScanBus ( 1,
SubBusNumber
);
+ } else {
+ //
+ // It is device. Check PCI IOV for Bus reservation
+ //
+
+ //
+ // Go through each function, just reserve the MAX ReservedBusNum for one device
+ //
+ if ((PciDevice->AriCapabilityOffset != 0) && ((FeaturePcdGet(PcdSrIovSupport)& EFI_PCI_IOV_POLICY_SRIOV) != 0)) {
+
+ if (TempReservedBusNum < PciDevice->ReservedBusNum) {
+
+ (*SubBusNumber) = (UINT8)((*SubBusNumber) + PciDevice->ReservedBusNum - TempReservedBusNum);
+ TempReservedBusNum = PciDevice->ReservedBusNum;
+
+ if (Func == 0) {
+ DEBUG ((EFI_D_INFO, "PCI-IOV ScanBus - SubBusNumber - 0x%x\n", *SubBusNumber));
+ } else {
+ DEBUG ((EFI_D_INFO, "PCI-IOV ScanBus - SubBusNumber - 0x%x (Update)\n", *SubBusNumber));
+ }
+ }
+ }
}
if (Func == 0 && !IS_PCI_MULTI_FUNC (&Pci)) {
@@ -1139,7 +1163,7 @@ PciHostBridgeEnumerator ( //
NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginBusAllocation);
- DEBUG((EFI_D_ERROR, "PCI Bus First Scanning\n"));
+ DEBUG((EFI_D_INFO, "PCI Bus First Scanning\n"));
RootBridgeHandle = NULL;
while (PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) {
@@ -1226,7 +1250,7 @@ PciHostBridgeEnumerator ( //
NotifyPhase (PciResAlloc, EfiPciHostBridgeBeginBusAllocation);
- DEBUG((EFI_D_ERROR, "PCI Bus Second Scanning\n"));
+ DEBUG((EFI_D_INFO, "PCI Bus Second Scanning\n"));
RootBridgeHandle = NULL;
while (PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) {
|