| 1 | /** @file
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| 2 |
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| 3 | Internal definitions for the VirtIo PCI Device driver
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| 4 |
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| 5 | Copyright (C) 2013, ARM Ltd
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| 6 | Copyright (c) 2017, AMD Inc, All rights reserved.<BR>
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| 7 |
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| 8 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 9 |
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| 10 | **/
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| 11 |
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| 12 | #ifndef _VIRTIO_PCI_DEVICE_DXE_H_
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| 13 | #define _VIRTIO_PCI_DEVICE_DXE_H_
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| 14 |
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| 15 | #include <Protocol/ComponentName.h>
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| 16 | #include <Protocol/DriverBinding.h>
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| 17 | #include <Protocol/PciIo.h>
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| 18 | #include <Protocol/VirtioDevice.h>
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| 19 |
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| 20 | #include <IndustryStandard/Virtio.h>
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| 21 |
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| 22 | #define VIRTIO_PCI_DEVICE_SIGNATURE SIGNATURE_32 ('V', 'P', 'C', 'I')
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| 23 |
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| 24 | typedef struct {
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| 25 | UINT32 Signature;
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| 26 | VIRTIO_DEVICE_PROTOCOL VirtioDevice;
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| 27 | EFI_PCI_IO_PROTOCOL *PciIo;
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| 28 | UINT64 OriginalPciAttributes;
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| 29 | UINT32 DeviceSpecificConfigurationOffset;
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| 30 | } VIRTIO_PCI_DEVICE;
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| 31 |
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| 32 | #define VIRTIO_PCI_DEVICE_FROM_VIRTIO_DEVICE(Device) \
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| 33 | CR (Device, VIRTIO_PCI_DEVICE, VirtioDevice, VIRTIO_PCI_DEVICE_SIGNATURE)
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| 34 |
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| 35 |
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| 36 | EFI_STATUS
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| 37 | EFIAPI
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| 38 | VirtioPciIoRead (
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| 39 | IN VIRTIO_PCI_DEVICE *Dev,
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| 40 | IN UINTN FieldOffset,
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| 41 | IN UINTN FieldSize,
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| 42 | IN UINTN BufferSize,
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| 43 | OUT VOID *Buffer
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| 44 | );
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| 45 |
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| 46 | EFI_STATUS
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| 47 | EFIAPI
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| 48 | VirtioPciIoWrite (
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| 49 | IN VIRTIO_PCI_DEVICE *Dev,
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| 50 | IN UINTN FieldOffset,
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| 51 | IN UINTN FieldSize,
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| 52 | IN UINT64 Value
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| 53 | );
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| 54 |
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| 55 | /********************************************
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| 56 | * PCI Functions for VIRTIO_DEVICE_PROTOCOL
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| 57 | *******************************************/
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| 58 | EFI_STATUS
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| 59 | EFIAPI
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| 60 | VirtioPciDeviceRead (
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| 61 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 62 | IN UINTN FieldOffset,
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| 63 | IN UINTN FieldSize,
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| 64 | IN UINTN BufferSize,
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| 65 | OUT VOID *Buffer
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| 66 | );
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| 67 |
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| 68 | EFI_STATUS
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| 69 | EFIAPI
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| 70 | VirtioPciDeviceWrite (
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| 71 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 72 | IN UINTN FieldOffset,
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| 73 | IN UINTN FieldSize,
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| 74 | IN UINT64 Value
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| 75 | );
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| 76 |
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| 77 | EFI_STATUS
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| 78 | EFIAPI
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| 79 | VirtioPciGetDeviceFeatures (
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| 80 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 81 | OUT UINT64 *DeviceFeatures
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| 82 | );
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| 83 |
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| 84 | EFI_STATUS
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| 85 | EFIAPI
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| 86 | VirtioPciGetQueueSize (
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| 87 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 88 | OUT UINT16 *QueueNumMax
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| 89 | );
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| 90 |
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| 91 | EFI_STATUS
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| 92 | EFIAPI
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| 93 | VirtioPciSetQueueAlignment (
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| 94 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 95 | IN UINT32 Alignment
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| 96 | );
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| 97 |
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| 98 | EFI_STATUS
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| 99 | EFIAPI
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| 100 | VirtioPciSetPageSize (
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| 101 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 102 | IN UINT32 PageSize
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| 103 | );
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| 104 |
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| 105 | EFI_STATUS
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| 106 | EFIAPI
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| 107 | VirtioPciGetDeviceStatus (
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| 108 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 109 | OUT UINT8 *DeviceStatus
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| 110 | );
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| 111 |
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| 112 | EFI_STATUS
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| 113 | EFIAPI
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| 114 | VirtioPciSetGuestFeatures (
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| 115 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 116 | IN UINT64 Features
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| 117 | );
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| 118 |
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| 119 | EFI_STATUS
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| 120 | EFIAPI
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| 121 | VirtioPciSetQueueAddress (
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| 122 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 123 | IN VRING *Ring,
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| 124 | IN UINT64 RingBaseShift
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| 125 | );
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| 126 |
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| 127 | EFI_STATUS
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| 128 | EFIAPI
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| 129 | VirtioPciSetQueueSel (
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| 130 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 131 | IN UINT16 Sel
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| 132 | );
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| 133 |
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| 134 | EFI_STATUS
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| 135 | EFIAPI
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| 136 | VirtioPciSetQueueNotify (
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| 137 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 138 | IN UINT16 Index
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| 139 | );
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| 140 |
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| 141 | EFI_STATUS
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| 142 | EFIAPI
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| 143 | VirtioPciSetQueueSize (
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| 144 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 145 | IN UINT16 Size
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| 146 | );
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| 147 |
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| 148 | EFI_STATUS
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| 149 | EFIAPI
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| 150 | VirtioPciSetDeviceStatus (
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| 151 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 152 | IN UINT8 DeviceStatus
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| 153 | );
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| 154 |
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| 155 | EFI_STATUS
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| 156 | EFIAPI
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| 157 | VirtioPciAllocateSharedPages (
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| 158 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 159 | IN UINTN NumPages,
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| 160 | OUT VOID **HostAddress
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| 161 | );
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| 162 |
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| 163 | VOID
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| 164 | EFIAPI
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| 165 | VirtioPciFreeSharedPages (
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| 166 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 167 | IN UINTN NumPages,
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| 168 | IN VOID *HostAddress
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| 169 | );
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| 170 |
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| 171 | EFI_STATUS
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| 172 | EFIAPI
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| 173 | VirtioPciMapSharedBuffer (
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| 174 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 175 | IN VIRTIO_MAP_OPERATION Operation,
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| 176 | IN VOID *HostAddress,
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| 177 | IN OUT UINTN *NumberOfBytes,
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| 178 | OUT EFI_PHYSICAL_ADDRESS *DeviceAddress,
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| 179 | OUT VOID **Mapping
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| 180 | );
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| 181 |
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| 182 | EFI_STATUS
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| 183 | EFIAPI
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| 184 | VirtioPciUnmapSharedBuffer (
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| 185 | IN VIRTIO_DEVICE_PROTOCOL *This,
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| 186 | IN VOID *Mapping
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| 187 | );
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| 188 | #endif // _VIRTIO_PCI_DEVICE_DXE_H_
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