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OvmfPkg: Introduce PciHostBridgeUtilityLib class

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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>
This commit is contained in:
Jiahui Cen via groups.io
2021-01-19 09:12:52 +08:00
committed by mergify[bot]
parent ca272b9513
commit 7a6172f88b
12 changed files with 166 additions and 39 deletions
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78
OvmfPkg/Library/PciHostBridgeUtilityLib/PciHostBridgeUtilityLib.c Normal file
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@@ -0,0 +1,78 @@
/** @file
Provide common utility functions to PciHostBridgeLib instances in
ArmVirtPkg and OvmfPkg.
Copyright (C) 2016, Red Hat, Inc.
Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2020, Huawei Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <IndustryStandard/Acpi10.h>
#include <Library/DebugLib.h>
#include <Library/PciHostBridgeUtilityLib.h>
GLOBAL_REMOVE_IF_UNREFERENCED
CHAR16 *mPciHostBridgeUtilityLibAcpiAddressSpaceTypeStr[] = {
L"Mem", L"I/O", L"Bus"
};
/**
Utility function to inform the platform that the resource conflict happens.
@param[in] Configuration Pointer to PCI I/O and PCI memory resource
descriptors. The Configuration contains the
resources for all the root bridges. The resource
for each root bridge is terminated with END
descriptor and an additional END is appended
indicating the end of the entire resources. The
resource descriptor field values follow the
description in
EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
.SubmitResources().
**/
VOID
EFIAPI
PciHostBridgeUtilityResourceConflict (
IN VOID *Configuration
)
{
EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *Descriptor;
UINTN RootBridgeIndex;
DEBUG ((DEBUG_ERROR, "PciHostBridge: Resource conflict happens!\n"));
RootBridgeIndex = 0;
Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *) Configuration;
while (Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR) {
DEBUG ((DEBUG_ERROR, "RootBridge[%d]:\n", RootBridgeIndex++));
for (; Descriptor->Desc == ACPI_ADDRESS_SPACE_DESCRIPTOR; Descriptor++) {
ASSERT (Descriptor->ResType <
ARRAY_SIZE (mPciHostBridgeUtilityLibAcpiAddressSpaceTypeStr)
);
DEBUG ((DEBUG_ERROR, " %s: Length/Alignment = 0x%lx / 0x%lx\n",
mPciHostBridgeUtilityLibAcpiAddressSpaceTypeStr[Descriptor->ResType],
Descriptor->AddrLen, Descriptor->AddrRangeMax
));
if (Descriptor->ResType == ACPI_ADDRESS_SPACE_TYPE_MEM) {
DEBUG ((DEBUG_ERROR, " Granularity/SpecificFlag = %ld / %02x%s\n",
Descriptor->AddrSpaceGranularity, Descriptor->SpecificFlag,
((Descriptor->SpecificFlag &
EFI_ACPI_MEMORY_RESOURCE_SPECIFIC_FLAG_CACHEABLE_PREFETCHABLE
) != 0) ? L" (Prefetchable)" : L""
));
}
}
//
// Skip the END descriptor for root bridge
//
ASSERT (Descriptor->Desc == ACPI_END_TAG_DESCRIPTOR);
Descriptor = (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR *)(
(EFI_ACPI_END_TAG_DESCRIPTOR *)Descriptor + 1
);
}
}