virtio.h File Reference

#include <stdint.h>

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Classes
struct	VirtioCommonCfg
struct	VirtioDeviceConfig
struct	VirtioBuffer
struct	VirtioAvail
struct	VirtioRing
struct	VirtioUsed
struct	VirtioQueue
struct	VirtioInputEvent
struct	_virtio_net_hdr_
struct	virtio_pci_cap
struct	virtio_notifier_cap

Macros
#define	OFFSETOF(s, m)   ((size_t)&(((s*)0)->m))
#define	VIRTIO_NET_F_CSUM   (1ULL << 0)
#define	VIRTIO_NET_F_GUEST_CSUM   (1ULL << 2)
#define	VIRTIO_NET_F_MAC   (1ULL << 5)
#define	VIRTIO_NET_F_CTRL_VQ   (1ULL << 17)
#define	VIRTIO_NET_HDR_GSO_NONE   0

Typedefs
typedef struct _virtio_net_hdr_	virtio_net_hdr_t

Functions
void	AuVirtioKbdInitialize (uint64_t device)
	AuVirtioKbdInitialize – initialize the virtio keyboard.
void	AuVirtioTabletInitialize (uint64_t device)
	AuVirtioTabletInitialize – initialize virtio tablet.
void	AuVirtioNetInitialize (uint64_t device)
	AuVirtioNetInitialize – initialize the virtio network device.

Detailed Description

BSD 2-Clause License

Copyright (c) 2022-2025, Manas Kamal Choudhury All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Macro Definition Documentation

OFFSETOF

#define OFFSETOF	(		s,
			m
	)		((size_t)&(((s*)0)->m))

VIRTIO_NET_F_CSUM

#define VIRTIO_NET_F_CSUM   (1ULL << 0)

VIRTIO_NET_F_CTRL_VQ

#define VIRTIO_NET_F_CTRL_VQ   (1ULL << 17)

VIRTIO_NET_F_GUEST_CSUM

#define VIRTIO_NET_F_GUEST_CSUM   (1ULL << 2)

VIRTIO_NET_F_MAC

#define VIRTIO_NET_F_MAC   (1ULL << 5)

VIRTIO_NET_HDR_GSO_NONE

#define VIRTIO_NET_HDR_GSO_NONE   0

Typedef Documentation

virtio_net_hdr_t

typedef struct _virtio_net_hdr_ virtio_net_hdr_t

Function Documentation

AuVirtioKbdInitialize()

void AuVirtioKbdInitialize ( uint64_t  device )

extern

AuVirtioKbdInitialize – initialize the virtio keyboard.

AuVirtioNetInitialize()

void AuVirtioNetInitialize ( uint64_t  device )

extern

AuVirtioNetInitialize – initialize the virtio network device.

Parameters

device	– virtio network device address
device	– device address passed by PCIe

feature negotiation

enable RX+TX queue

feature negotiation

enable RX+TX queue

AuVirtioTabletInitialize()

void AuVirtioTabletInitialize ( uint64_t  device )

extern

AuVirtioTabletInitialize – initialize virtio tablet.

AuVirtioTabletInitialize – initialize virtio tablet.