1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright IBM Corp. 2007
5 *
6 * Authors:
7 * Anthony Liguori <aliguori@us.ibm.com>
8 *
9 * This header is BSD licensed so anyone can use the definitions to implement
10 * compatible drivers/servers.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of IBM nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 *
35 * $FreeBSD$
36 */
37
38 #ifndef _VIRTIO_PCI_VAR_H
39 #define _VIRTIO_PCI_VAR_H
40
41 /* VirtIO PCI vendor/device ID. */
42 #define VIRTIO_PCI_VENDORID 0x1AF4
43 #define VIRTIO_PCI_DEVICEID_MIN 0x1000
44 #define VIRTIO_PCI_DEVICEID_LEGACY_MAX 0x103F
45 #define VIRTIO_PCI_DEVICEID_MODERN_MIN 0x1040
46 #define VIRTIO_PCI_DEVICEID_MODERN_MAX 0x107F
47
48 /* The bit of the ISR which indicates a device has an interrupt. */
49 #define VIRTIO_PCI_ISR_INTR 0x1
50 /* The bit of the ISR which indicates a device configuration change. */
51 #define VIRTIO_PCI_ISR_CONFIG 0x2
52 /* Vector value used to disable MSI for queue. */
53 #define VIRTIO_MSI_NO_VECTOR 0xFFFF
54
55 #endif /* _VIRTIO_PCI_VAR_H */
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