Virtio10.h

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#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_