diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c index 5a4b830604..ab791541c3 100644 --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.c @@ -979,33 +979,33 @@ PciDeviceExisted ( } /** - Get the active VGA device on the same segment. + Get the active VGA device on the specified Host Bridge. - @param VgaDevice PCI IO instance for the VGA device. + @param HostBridgeHandle Host Bridge handle. - @return The active VGA device on the same segment. + @return The active VGA device on the specified Host Bridge. **/ PCI_IO_DEVICE * -ActiveVGADeviceOnTheSameSegment ( - IN PCI_IO_DEVICE *VgaDevice +LocateVgaDeviceOnHostBridge ( + IN EFI_HANDLE HostBridgeHandle ) { LIST_ENTRY *CurrentLink; - PCI_IO_DEVICE *Temp; + PCI_IO_DEVICE *PciIoDevice; CurrentLink = mPciDevicePool.ForwardLink; while (CurrentLink != NULL && CurrentLink != &mPciDevicePool) { - Temp = PCI_IO_DEVICE_FROM_LINK (CurrentLink); + PciIoDevice = PCI_IO_DEVICE_FROM_LINK (CurrentLink); - if (Temp->PciRootBridgeIo->SegmentNumber == VgaDevice->PciRootBridgeIo->SegmentNumber) { + if (PciIoDevice->PciRootBridgeIo->ParentHandle== HostBridgeHandle) { - Temp = LocateVgaDevice (Temp); + PciIoDevice = LocateVgaDevice (PciIoDevice); - if (Temp != NULL) { - return Temp; + if (PciIoDevice != NULL) { + return PciIoDevice; } } diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.h b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.h index 1ec2178a21..b45d2a5d77 100644 --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.h +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciDeviceSupport.h @@ -230,16 +230,16 @@ PciDeviceExisted ( ); /** - Get the active VGA device on the same segment. + Get the active VGA device on the specified Host Bridge. - @param VgaDevice PCI IO instance for the VGA device. + @param HostBridgeHandle Host Bridge handle. - @return The active VGA device on the same segment. + @return The active VGA device on the specified Host Bridge. **/ PCI_IO_DEVICE * -ActiveVGADeviceOnTheSameSegment ( - IN PCI_IO_DEVICE *VgaDevice +LocateVgaDeviceOnHostBridge ( + IN EFI_HANDLE HostBridgeHandle ); /** diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c index 291578c63c..2a4f66a01a 100644 --- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c +++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciIo.c @@ -1413,9 +1413,9 @@ SupportPaletteSnoopAttributes ( } // - // Get the boot VGA on the same segement + // Get the boot VGA on the same Host Bridge // - Temp = ActiveVGADeviceOnTheSameSegment (PciIoDevice); + Temp = LocateVgaDeviceOnHostBridge (PciIoDevice->PciRootBridgeIo->ParentHandle); if (Temp == NULL) { // @@ -1668,9 +1668,9 @@ PciIoAttributes ( // if (Operation == EfiPciIoAttributeOperationEnable) { // - // Check if there have been an active VGA device on the same segment + // Check if there have been an active VGA device on the same Host Bridge // - Temp = ActiveVGADeviceOnTheSameSegment (PciIoDevice); + Temp = LocateVgaDeviceOnHostBridge (PciIoDevice->PciRootBridgeIo->ParentHandle); if (Temp != NULL && Temp != PciIoDevice) { // // An active VGA has been detected, so can not enable another