4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync PCI bus enumeration logic function declaration for PCI bus module.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncCopyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncThis program and the accompanying materials
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncare licensed and made available under the terms and conditions of the BSD License
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncwhich accompanies this distribution. The full text of the license may be found at
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncTHE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsyncWITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This routine is used to enumerate entire pci bus system
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync in a given platform.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Controller Parent controller handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS PCI enumeration finished successfully.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval other Some error occurred when enumerating the pci bus system.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Enumerate PCI root bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PciResAlloc Pointer to protocol instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param RootBridgeDev Instance of root bridge device.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully enumerated root bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval other Failed to enumerate root bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This routine is used to process all PCI devices' Option Rom
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync on a certain root bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Bridge Given parent's root bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param RomBase Base address of ROM driver loaded from.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param MaxLength Maximum rom size.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This routine is used to assign bus number to the given PCI bus system
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Bridge Parent root bridge instance.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param StartBusNumber Number of beginning.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param SubBusNumber The number of sub bus.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully assigned bus number.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_DEVICE_ERROR Failed to assign bus number.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This routine is used to determine the root bridge attribute by interfacing
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync the host bridge resource allocation protocol.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PciResAlloc Protocol instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param RootBridgeDev Root bridge instance
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully got root bridge's attribute.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval other Failed to get attribute.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Get Max Option Rom size on specified bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Bridge Given bridge device instance.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return Max size of option rom needed.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Process attributes of devices on this host bridge
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PciResAlloc Protocol instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully process attribute.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_NOT_FOUND Can not find the specific root bridge device.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval other Failed to determine the root bridge device's attribute.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Get resource allocation status from the ACPI resource descriptor.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param AcpiConfig Point to Acpi configuration table.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param IoResStatus Return the status of I/O resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem32ResStatus Return the status of 32-bit Memory resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem32ResStatus Return the status of 32-bit Prefetchable Memory resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem64ResStatus Return the status of 64-bit Memory resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem64ResStatus Return the status of 64-bit Prefetchable Memory resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Remove a PCI device from device pool and mark its bar.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PciDevice Instance of Pci device.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully remove the PCI device.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_ABORTED Pci device is a root bridge or a PCI-PCI bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Determine whethter a PCI device can be rejected.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PciResNode Pointer to Pci resource node instance.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval TRUE The PCI device can be rejected.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval TRUE The PCI device cannot be rejected.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Compare two resource nodes and get the larger resource consumer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PciResNode1 resource node 1 want to be compared
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PciResNode2 resource node 2 want to be compared
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return Larger resource node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Get the max resource consumer in the host resource pool.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param ResPool Pointer to resource pool node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @return The max resource consumer in the host resource pool.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Adjust host bridge allocation so as to reduce resource requirement
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param IoPool Pointer to instance of I/O resource Node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem32Pool Pointer to instance of 32-bit memory resource Node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem32Pool Pointer to instance of 32-bit Prefetchable memory resource node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem64Pool Pointer to instance of 64-bit memory resource node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem64Pool Pointer to instance of 64-bit Prefetchable memory resource node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param IoResStatus Status of I/O resource Node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem32ResStatus Status of 32-bit memory resource Node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem32ResStatus Status of 32-bit Prefetchable memory resource node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem64ResStatus Status of 64-bit memory resource node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem64ResStatus Status of 64-bit Prefetchable memory resource node.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully adjusted resoruce on host bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_ABORTED Host bridge hasn't this resource type or no resource be adjusted.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Summary requests for all resource type, and contruct ACPI resource
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync requestor instance.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Bridge detecting bridge
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param IoNode Pointer to instance of I/O resource Node
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem32Node Pointer to instance of 32-bit memory resource Node
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem32Node Pointer to instance of 32-bit Pmemory resource node
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem64Node Pointer to instance of 64-bit memory resource node
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem64Node Pointer to instance of 64-bit Pmemory resource node
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Config Output buffer holding new constructed APCI resource requestor
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully constructed ACPI resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_OUT_OF_RESOURCES No memory availabe.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Get resource base from an acpi configuration descriptor.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Config An acpi configuration descriptor.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param IoBase Output of I/O resource base address.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem32Base Output of 32-bit memory base address.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem32Base Output of 32-bit prefetchable memory base address.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem64Base Output of 64-bit memory base address.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem64Base Output of 64-bit prefetchable memory base address.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Enumerate pci bridge, allocate resource and determine attribute
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for devices on this bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param BridgeDev Pointer to instance of bridge device.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully enumerated PCI bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval other Failed to enumerate.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Allocate all kinds of resource for PCI bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Bridge Pointer to bridge instance.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully allocated resource for PCI bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval other Failed to allocate resource for bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Get resource base address for a pci bridge device.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Bridge Given Pci driver instance.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param IoBase Output for base address of I/O type resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem32Base Output for base address of 32-bit memory type resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem32Base Ooutput for base address of 32-bit Pmemory type resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Mem64Base Output for base address of 64-bit memory type resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PMem64Base Output for base address of 64-bit Pmemory type resource.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully got resource base address.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_OUT_OF_RESOURCES PCI bridge is not available.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Process Option Rom on this host bridge
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param PciResAlloc Pointer to instance of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_NOT_FOUND Can not find the root bridge instance.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Success process.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync These are the notifications from the PCI bus driver that it is about to enter a certain
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync phase of the PCI enumeration process.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This member function can be used to notify the host bridge driver to perform specific actions,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync including any chipset-specific initialization, so that the chipset is ready to enter the next phase.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Eight notification points are defined at this time. See belows:
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiPciHostBridgeBeginEnumeration Resets the host bridge PCI apertures and internal data
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync structures. The PCI enumerator should issue this notification
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync before starting a fresh enumeration process. Enumeration cannot
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync be restarted after sending any other notification such as
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiPciHostBridgeBeginBusAllocation.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiPciHostBridgeBeginBusAllocation The bus allocation phase is about to begin. No specific action is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync required here. This notification can be used to perform any
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync chipset-specific programming.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiPciHostBridgeEndBusAllocation The bus allocation and bus programming phase is complete. No
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync specific action is required here. This notification can be used to
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync perform any chipset-specific programming.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiPciHostBridgeBeginResourceAllocation
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync The resource allocation phase is about to begin. No specific
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync action is required here. This notification can be used to perform
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync any chipset-specific programming.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiPciHostBridgeAllocateResources Allocates resources per previously submitted requests for all the PCI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync root bridges. These resource settings are returned on the next call to
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync GetProposedResources(). Before calling NotifyPhase() with a Phase of
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiPciHostBridgeAllocateResource, the PCI bus enumerator is responsible
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for gathering I/O and memory requests for
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync all the PCI root bridges and submitting these requests using
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync SubmitResources(). This function pads the resource amount
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync to suit the root bridge hardware, takes care of dependencies between
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync the PCI root bridges, and calls the Global Coherency Domain (GCD)
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync with the allocation request. In the case of padding, the allocated range
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync could be bigger than what was requested.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiPciHostBridgeSetResources Programs the host bridge hardware to decode previously allocated
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync resources (proposed resources) for all the PCI root bridges. After the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync hardware is programmed, reassigning resources will not be supported.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync The bus settings are not affected.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiPciHostBridgeFreeResources Deallocates resources that were previously allocated for all the PCI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync root bridges and resets the I/O and memory apertures to their initial
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync state. The bus settings are not affected. If the request to allocate
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync resources fails, the PCI enumerator can use this notification to
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync deallocate previous resources, adjust the requests, and retry
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync allocation.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EfiPciHostBridgeEndResourceAllocation The resource allocation phase is completed. No specific action is
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync required here. This notification can be used to perform any chipsetspecific
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync programming.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] PciResAlloc The instance pointer of EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param[in] Phase The phase during enumeration
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_NOT_READY This phase cannot be entered at this time. For example, this error
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync is valid for a Phase of EfiPciHostBridgeAllocateResources if
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync SubmitResources() has not been called for one or more
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync PCI root bridges before this call
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_DEVICE_ERROR Programming failed due to a hardware error. This error is valid
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync for a Phase of EfiPciHostBridgeSetResources.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_INVALID_PARAMETER Invalid phase parameter
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This error is valid for a Phase of EfiPciHostBridgeAllocateResources if the
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync previously submitted resource requests cannot be fulfilled or
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync were only partially fulfilled.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS The notification was accepted without any errors.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL *PciResAlloc,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PHASE Phase
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Provides the hooks from the PCI bus driver to every PCI controller (device/function) at various
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync stages of the PCI enumeration process that allow the host bridge driver to preinitialize individual
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync PCI controllers before enumeration.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This function is called during the PCI enumeration process. No specific action is expected from this
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync member function. It allows the host bridge driver to preinitialize individual PCI controllers before
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync enumeration.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Bridge Pointer to the EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL instance.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Bus The bus number of the pci device.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Device The device number of the pci device.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Func The function number of the pci device.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Phase The phase of the PCI device enumeration.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS The requested parameters were returned.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_INVALID_PARAMETER RootBridgeHandle is not a valid root bridge handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_INVALID_PARAMETER Phase is not a valid phase that is defined in
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_DEVICE_ERROR Programming failed due to a hardware error. The PCI enumerator should
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync not enumerate this device, including its child devices if it is a PCI-to-PCI
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_PCI_CONTROLLER_RESOURCE_ALLOCATION_PHASE Phase
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync This function allows the PCI bus driver to be notified to act as requested when a hot-plug event has
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync happened on the hot-plug controller. Currently, the operations include add operation and remove operation..
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param This A pointer to the hot plug request protocol.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Operation The operation the PCI bus driver is requested to make.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param Controller The handle of the hot-plug controller.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param RemainingDevicePath The remaining device path for the PCI-like hot-plug device.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param NumberOfChildren The number of child handles.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync For a add operation, it is an output parameter.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync For a remove operation, it's an input parameter.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param ChildHandleBuffer The buffer which contains the child handles.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_INVALID_PARAMETER Operation is not a legal value.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Controller is NULL or not a valid handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync NumberOfChildren is NULL.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync ChildHandleBuffer is NULL while Operation is add.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_OUT_OF_RESOURCES There are no enough resources to start the devices.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_NOT_FOUND Can not find bridge according to controller handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS The handles for the specified device have been created or destroyed
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync as requested, and for an add operation, the new handles are
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync returned in ChildHandleBuffer.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync IN EFI_DEVICE_PATH_PROTOCOL * RemainingDevicePath OPTIONAL,
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Search hostbridge according to given handle
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param RootBridgeHandle Host bridge handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval TRUE Found host bridge handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval FALSE Not found hot bridge handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync Add host bridge handle to global variable for enumerating.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @param HostBridgeHandle Host bridge handle.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_SUCCESS Successfully added host bridge.
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync @retval EFI_ABORTED Host bridge is NULL, or given host bridge
4fd606d1f5abe38e1f42c38de1d2e895166bd0f4vboxsync has been in host bridge list.