mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-29 23:53:55 +08:00
747ae34a6e
Activate VIRTIO_F_VERSION_1 automatically unless legacy_only is set. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
63 lines
2.9 KiB
C
63 lines
2.9 KiB
C
#ifndef _UAPI_LINUX_VIRTIO_CONFIG_H
|
|
#define _UAPI_LINUX_VIRTIO_CONFIG_H
|
|
/* This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
|
|
* anyone can use the definitions to implement compatible drivers/servers.
|
|
*
|
|
* 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.
|
|
* 3. Neither the name of IBM nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
* 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 IBM 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. */
|
|
|
|
/* Virtio devices use a standardized configuration space to define their
|
|
* features and pass configuration information, but each implementation can
|
|
* store and access that space differently. */
|
|
#include <linux/types.h>
|
|
|
|
/* Status byte for guest to report progress, and synchronize features. */
|
|
/* We have seen device and processed generic fields (VIRTIO_CONFIG_F_VIRTIO) */
|
|
#define VIRTIO_CONFIG_S_ACKNOWLEDGE 1
|
|
/* We have found a driver for the device. */
|
|
#define VIRTIO_CONFIG_S_DRIVER 2
|
|
/* Driver has used its parts of the config, and is happy */
|
|
#define VIRTIO_CONFIG_S_DRIVER_OK 4
|
|
/* Driver has finished configuring features */
|
|
#define VIRTIO_CONFIG_S_FEATURES_OK 8
|
|
/* We've given up on this device. */
|
|
#define VIRTIO_CONFIG_S_FAILED 0x80
|
|
|
|
/* Some virtio feature bits (currently bits 28 through 32) are reserved for the
|
|
* transport being used (eg. virtio_ring), the rest are per-device feature
|
|
* bits. */
|
|
#define VIRTIO_TRANSPORT_F_START 28
|
|
#define VIRTIO_TRANSPORT_F_END 33
|
|
|
|
/* Do we get callbacks when the ring is completely used, even if we've
|
|
* suppressed them? */
|
|
#define VIRTIO_F_NOTIFY_ON_EMPTY 24
|
|
|
|
/* Can the device handle any descriptor layout? */
|
|
#define VIRTIO_F_ANY_LAYOUT 27
|
|
|
|
/* v1.0 compliant. */
|
|
#define VIRTIO_F_VERSION_1 32
|
|
|
|
#endif /* _UAPI_LINUX_VIRTIO_CONFIG_H */
|