linux-toradex.git/include/uapi/linux/virtio_config.h, branch v4.6-rc3 Linux kernel for Apalis and Colibri modules virtio: add VIRTIO_CONFIG_S_NEEDS_RESET device status bit 2016-04-07T12:16:41+00:00 Stefan Hajnoczi stefanha@redhat.com 2016-03-29T15:43:45+00:00 c00bbcf8628969e103d4a7b351a53746f1025576 The VIRTIO 1.0 specification added the DEVICE_NEEDS_RESET device status bit in "VIRTIO-98: Add DEVICE_NEEDS_RESET". This patch defines the device status bit in the uapi header file so that both the kernel and userspace applications can use it. The bit is currently unused by the virtio guest drivers and vhost. According to the spec "a good implementation will try to recover by issuing a reset". This is not attempted here because it requires auditing the virtio drivers to ensure there are no resource leaks or crashes if the device needs to be reset mid-operation. See "2.1 Device Status Field" in the VIRTIO 1.0 specification for details. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> 
The VIRTIO 1.0 specification added the DEVICE_NEEDS_RESET device status
bit in "VIRTIO-98: Add DEVICE_NEEDS_RESET".  This patch defines the
device status bit in the uapi header file so that both the kernel and
userspace applications can use it.

The bit is currently unused by the virtio guest drivers and vhost.
According to the spec "a good implementation will try to recover by
issuing a reset".  This is not attempted here because it requires
auditing the virtio drivers to ensure there are no resource leaks or
crashes if the device needs to be reset mid-operation.

See "2.1 Device Status Field" in the VIRTIO 1.0 specification for
details.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio: Don't expose legacy config features when VIRTIO_CONFIG_NO_LEGACY defined. 2015-02-11T04:33:16+00:00 Rusty Russell rusty@rustcorp.com.au 2015-02-11T04:31:14+00:00 6d96ee98b1d08bcf0f90a6bf2c6766dda6b3a010 The VIRTIO_F_ANY_LAYOUT and VIRTIO_F_NOTIFY_ON_EMPTY features are pre-1.0 only. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: Michael S. Tsirkin <mst@redhat.com> 
The VIRTIO_F_ANY_LAYOUT and VIRTIO_F_NOTIFY_ON_EMPTY features are pre-1.0
only.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
virtio: make VIRTIO_F_VERSION_1 a transport bit 2014-12-09T10:06:32+00:00 Michael S. Tsirkin mst@redhat.com 2014-12-01T13:52:40+00:00 747ae34a6ef681fbd993be214d8c0a30bd4a2fda Activate VIRTIO_F_VERSION_1 automatically unless legacy_only is set. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> 
Activate VIRTIO_F_VERSION_1 automatically unless legacy_only
is set.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio: set FEATURES_OK 2014-12-09T10:05:25+00:00 Michael S. Tsirkin mst@redhat.com 2014-10-22T14:41:38+00:00 cb3f6d9da49929797f806b4e91ec005e6fc2e9c2 set FEATURES_OK as per virtio 1.0 spec Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> 
set FEATURES_OK as per virtio 1.0 spec

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
virtio: add virtio 1.0 feature bit 2014-12-09T10:05:24+00:00 Michael S. Tsirkin mst@redhat.com 2014-10-22T12:49:34+00:00 4ec22faeb2a165b6ce7009f91309046010b3f282 Based on original patches by Rusty Russell, Thomas Huth and Cornelia Huck. Note: at this time, we do not negotiate this feature bit in core, drivers have to declare VERSION_1 support explicitly. For this reason we treat this bit as a device bit and not as a transport bit for now. After all drivers are converted, we will be able to move VERSION_1 to core and drop it from all drivers. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> 
Based on original patches by Rusty Russell, Thomas Huth
and Cornelia Huck.

Note: at this time, we do not negotiate this feature bit
in core, drivers have to declare VERSION_1 support explicitly.

For this reason we treat this bit as a device bit
and not as a transport bit for now.

After all drivers are converted, we will be able to
move VERSION_1 to core and drop it from all drivers.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
virtio: VIRTIO_F_ANY_LAYOUT feature 2013-07-09T01:17:45+00:00 Rusty Russell rusty@rustcorp.com.au 2013-07-08T01:03:37+00:00 62525a00b87cc967bce9779d63fcc84fb9199130 Also known as the "no really, I read the spec" bit. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 
Also known as the "no really, I read the spec" bit.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
UAPI: (Scripted) Disintegrate include/linux 2012-10-13T09:46:48+00:00 David Howells dhowells@redhat.com 2012-10-13T09:46:48+00:00 607ca46e97a1b6594b29647d98a32d545c24bdff Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com> 
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Dave Jones <davej@redhat.com>