mirror of https://github.com/acidanthera/audk.git
[Description]:
Fixed one bug in PciBus. PciBus doesn't clear the bridges bus number for all the root bridges before scanning any of them. [Impaction]: Pci Bus driver. [Reference Info]: EDK tracker 997. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@4851 6f19259b-4bc3-4df7-8a09-765794883524
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@ -237,6 +237,8 @@ Returns:
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pConfiguration
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);
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gBS->FreePool (pConfiguration);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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@ -4,7 +4,7 @@
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It abstracts some functions that can be different
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between light PCI bus driver and full PCI bus driver
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Copyright (c) 2006, Intel Corporation
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Copyright (c) 2006 - 2008, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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@ -1860,9 +1860,15 @@ Returns:
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EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL *PciRootBridgeIo;
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UINT16 MinBus;
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EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptors;
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EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *pConfiguration;
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UINT8 StartBusNumber;
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LIST_ENTRY RootBridgeList;
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LIST_ENTRY *Link;
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InitializeHotPlugSupport ();
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InitializeListHead (&RootBridgeList);
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//
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// Notify the bus allocation phase is about to start
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//
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@ -1891,7 +1897,11 @@ Returns:
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RootBridgeDev
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);
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if (gPciHotPlugInit != NULL) {
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InsertTailList (&RootBridgeList, &(RootBridgeDev->Link));
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} else {
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DestroyRootBridge (RootBridgeDev);
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}
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if (EFI_ERROR (Status)) {
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return Status;
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}
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@ -1905,6 +1915,41 @@ Returns:
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if (FeaturePcdGet (PcdPciBusHotplugDeviceSupport)) {
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if (gPciHotPlugInit != NULL) {
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//
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// Reset all assigned PCI bus number in all PPB
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//
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RootBridgeHandle = NULL;
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Link = GetFirstNode (&RootBridgeList);
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while ((PciResAlloc->GetNextRootBridge (PciResAlloc, &RootBridgeHandle) == EFI_SUCCESS) &&
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(!IsNull (&RootBridgeList, Link))) {
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RootBridgeDev = PCI_IO_DEVICE_FROM_LINK (Link);
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//
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// Get the Bus information
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//
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Status = PciResAlloc->StartBusEnumeration (
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PciResAlloc,
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RootBridgeHandle,
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(VOID **) &pConfiguration
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);
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if (EFI_ERROR (Status)) {
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return Status;
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}
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//
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// Get the bus number to start with
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//
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StartBusNumber = (UINT8) (pConfiguration->AddrRangeMin);
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ResetAllPpbBusNumber (
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RootBridgeDev,
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StartBusNumber
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);
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gBS->FreePool (pConfiguration);
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Link = GetNextNode (&RootBridgeList, Link);
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DestroyRootBridge (RootBridgeDev);
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}
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//
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// Wait for all HPC initialized
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//
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