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- /** @file
- Private definitions of the VirtIo 1.0 driver.
- Copyright (C) 2016, Red Hat, Inc.
- SPDX-License-Identifier: BSD-2-Clause-Patent
- **/
- #ifndef _VIRTIO_1_0_DXE_H_
- #define _VIRTIO_1_0_DXE_H_
- #include <Protocol/PciIo.h>
- #include <Protocol/VirtioDevice.h>
- #define VIRTIO_1_0_SIGNATURE SIGNATURE_32 ('V', 'I', 'O', '1')
- //
- // Type of the PCI BAR that contains a VirtIo 1.0 config structure.
- //
- typedef enum {
- Virtio10BarTypeMem,
- Virtio10BarTypeIo
- } VIRTIO_1_0_BAR_TYPE;
- //
- // The type below defines the access to a VirtIo 1.0 config structure.
- //
- typedef struct {
- BOOLEAN Exists; // The device exposes this structure
- VIRTIO_1_0_BAR_TYPE BarType;
- UINT8 Bar;
- UINT32 Offset; // Offset into BAR where structure starts
- UINT32 Length; // Length of structure in BAR.
- } VIRTIO_1_0_CONFIG;
- typedef struct {
- UINT32 Signature;
- VIRTIO_DEVICE_PROTOCOL VirtIo;
- EFI_PCI_IO_PROTOCOL *PciIo;
- UINT64 OriginalPciAttributes;
- VIRTIO_1_0_CONFIG CommonConfig; // Common settings
- VIRTIO_1_0_CONFIG NotifyConfig; // Notifications
- UINT32 NotifyOffsetMultiplier;
- VIRTIO_1_0_CONFIG SpecificConfig; // Device specific settings
- } VIRTIO_1_0_DEV;
- #define VIRTIO_1_0_FROM_VIRTIO_DEVICE(Device) \
- CR (Device, VIRTIO_1_0_DEV, VirtIo, VIRTIO_1_0_SIGNATURE)
- #endif // _VIRTIO_1_0_DXE_H_
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