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55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
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/** @file
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Macro and type definitions for QEMU's Red Hat vendor-specific PCI
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capabilities that provide various hints about PCI Bridges.
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Refer to "docs/pcie_pci_bridge.txt" in the QEMU source directory.
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Copyright (C) 2017, Red Hat, Inc.
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#ifndef __QEMU_PCI_BRIDGE_CAPABILITIES_H__
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#define __QEMU_PCI_BRIDGE_CAPABILITIES_H__
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#include <IndustryStandard/Pci23.h>
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//
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// The hints apply to PCI Bridges whose PCI_DEVICE_INDEPENDENT_REGION.VendorId
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// equals the following value.
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//
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#define QEMU_PCI_BRIDGE_VENDOR_ID_REDHAT 0x1B36
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//
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// Common capability header for all hints.
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//
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#pragma pack (1)
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typedef struct {
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EFI_PCI_CAPABILITY_VENDOR_HDR VendorHdr;
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UINT8 Type;
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} QEMU_PCI_BRIDGE_CAPABILITY_HDR;
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#pragma pack ()
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//
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// Values defined for QEMU_PCI_BRIDGE_CAPABILITY_HDR.Type.
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//
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#define QEMU_PCI_BRIDGE_CAPABILITY_TYPE_RESOURCE_RESERVATION 0x01
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//
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// PCI Resource Reservation structure for when
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// QEMU_PCI_BRIDGE_CAPABILITY_HDR.Type equals
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// QEMU_PCI_BRIDGE_CAPABILITY_TYPE_RESOURCE_RESERVATION.
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//
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#pragma pack (1)
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typedef struct {
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QEMU_PCI_BRIDGE_CAPABILITY_HDR BridgeHdr;
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UINT32 BusNumbers;
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UINT64 Io;
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UINT32 NonPrefetchable32BitMmio;
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UINT32 Prefetchable32BitMmio;
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UINT64 Prefetchable64BitMmio;
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} QEMU_PCI_BRIDGE_CAPABILITY_RESOURCE_RESERVATION;
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#pragma pack ()
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#endif
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