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Introduce a new PciHostBridgeUtilityLib class to share duplicate code between OvmfPkg and ArmVirtPkg. Extract function PciHostBridgeUtilityResourceConflict from PciHostBridgeResourceConflict in OvmfPkg/PciHostBridgeLib. BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3059 Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Cc: Rebecca Cran <rebecca@bsdio.com> Cc: Peter Grehan <grehan@freebsd.org> Cc: Anthony Perard <anthony.perard@citrix.com> Cc: Julien Grall <julien@xen.org> Signed-off-by: Jiahui Cen <cenjiahui@huawei.com> Signed-off-by: Yubo Miao <miaoyubo@huawei.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20210119011302.10908-2-cenjiahui@huawei.com>
79 lines
3.0 KiB
C
79 lines
3.0 KiB
C
/** @file
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Provide common utility functions to PciHostBridgeLib instances in
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ArmVirtPkg and OvmfPkg.
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Copyright (C) 2016, Red Hat, Inc.
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Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
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Copyright (c) 2020, Huawei Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <IndustryStandard/Acpi10.h>
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#include <Library/DebugLib.h>
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#include <Library/PciHostBridgeUtilityLib.h>
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GLOBAL_REMOVE_IF_UNREFERENCED
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CHAR16 *mPciHostBridgeUtilityLibAcpiAddressSpaceTypeStr[] = {
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L"Mem", L"I/O", L"Bus"
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};
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/**
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Utility function to inform the platform that the resource conflict happens.
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@param[in] Configuration Pointer to PCI I/O and PCI memory resource
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descriptors. The Configuration contains the
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resources for all the root bridges. The resource
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for each root bridge is terminated with END
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descriptor and an additional END is appended
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indicating the end of the entire resources. The
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resource descriptor field values follow the
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description in
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EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
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.SubmitResources().
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**/
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VOID
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EFIAPI
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PciHostBridgeUtilityResourceConflict (
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IN VOID *Configuration
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)
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{
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EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;
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UINTN RootBridgeIndex;
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DEBUG ((DEBUG_ERROR, "PciHostBridge: Resource conflict happens!\n"));
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RootBridgeIndex = 0;
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Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;
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while (Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) {
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DEBUG ((DEBUG_ERROR, "RootBridge[%d]:\n", RootBridgeIndex++));
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for (; Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR; Descriptor++) {
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ASSERT (Descriptor->ResType <
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ARRAY_SIZE (mPciHostBridgeUtilityLibAcpiAddressSpaceTypeStr)
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);
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DEBUG ((DEBUG_ERROR, " %s: Length/Alignment = 0x%lx / 0x%lx\n",
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mPciHostBridgeUtilityLibAcpiAddressSpaceTypeStr[Descriptor->ResType],
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Descriptor->AddrLen, Descriptor->AddrRangeMax
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));
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if (Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) {
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DEBUG ((DEBUG_ERROR, " Granularity/SpecificFlag = %ld / %02x%s\n",
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Descriptor->AddrSpaceGranularity, Descriptor->SpecificFlag,
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((Descriptor->SpecificFlag &
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EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE
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) != 0) ? L" (Prefetchable)" : L""
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));
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}
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}
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//
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// Skip the END descriptor for root bridge
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//
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ASSERT (Descriptor->Desc == ACPI_END_TAG_DESCRIPTOR);
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Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)(
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(EFI_ACPI_END_TAG_DESCRIPTOR *)Descriptor + 1
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);
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}
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}
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