From: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
To: kvm@vger.kernel.org
Cc: linux-remoteproc@vger.kernel.org,
virtualization@lists.linux-foundation.org,
sound-open-firmware@alsa-project.org,
Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>,
Liam Girdwood <liam.r.girdwood@linux.intel.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
Ohad Ben-Cohen <ohad@wizery.com>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Mathieu Poirier <mathieu.poirier@linaro.org>,
Vincent Whitchurch <vincent.whitchurch@axis.com>
Subject: [PATCH v6 1/4] vhost: convert VHOST_VSOCK_SET_RUNNING to a generic ioctl
Date: Tue, 1 Sep 2020 17:11:50 +0200 [thread overview]
Message-ID: <20200901151153.28111-2-guennadi.liakhovetski@linux.intel.com> (raw)
In-Reply-To: <20200901151153.28111-1-guennadi.liakhovetski@linux.intel.com>
VHOST_VSOCK_SET_RUNNING is used by the vhost vsock driver to perform
crucial VirtQueue initialisation, like assigning .private fields and
calling vhost_vq_init_access(), and clean up. However, this ioctl is
actually extremely useful for any vhost driver, that doesn't have a
side channel to inform it of a status change, e.g. upon a guest
reboot. This patch makes that ioctl generic, while preserving its
numeric value and also keeping the original alias.
Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>
---
include/uapi/linux/vhost.h | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h
index 75232185324a..11a4948b6216 100644
--- a/include/uapi/linux/vhost.h
+++ b/include/uapi/linux/vhost.h
@@ -97,6 +97,8 @@
#define VHOST_SET_BACKEND_FEATURES _IOW(VHOST_VIRTIO, 0x25, __u64)
#define VHOST_GET_BACKEND_FEATURES _IOR(VHOST_VIRTIO, 0x26, __u64)
+#define VHOST_SET_RUNNING _IOW(VHOST_VIRTIO, 0x61, int)
+
/* VHOST_NET specific defines */
/* Attach virtio net ring to a raw socket, or tap device.
@@ -118,7 +120,7 @@
/* VHOST_VSOCK specific defines */
#define VHOST_VSOCK_SET_GUEST_CID _IOW(VHOST_VIRTIO, 0x60, __u64)
-#define VHOST_VSOCK_SET_RUNNING _IOW(VHOST_VIRTIO, 0x61, int)
+#define VHOST_VSOCK_SET_RUNNING VHOST_SET_RUNNING
/* VHOST_VDPA specific defines */
--
2.28.0
next prev parent reply other threads:[~2020-09-01 17:23 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-01 15:11 [PATCH v6 0/4] Add a vhost RPMsg API Guennadi Liakhovetski
2020-09-01 15:11 ` Guennadi Liakhovetski [this message]
2020-09-01 15:11 ` [PATCH v6 2/4] rpmsg: move common structures and defines to headers Guennadi Liakhovetski
2020-09-01 17:23 ` Mathieu Poirier
2020-09-02 5:35 ` Guennadi Liakhovetski
2020-09-02 17:24 ` Mathieu Poirier
2020-09-03 5:51 ` Guennadi Liakhovetski
2020-09-03 19:27 ` Mathieu Poirier
2020-09-01 15:11 ` [PATCH v6 3/4] rpmsg: update documentation Guennadi Liakhovetski
2020-09-03 19:21 ` Mathieu Poirier
2020-09-01 15:11 ` [PATCH v6 4/4] vhost: add an RPMsg API Guennadi Liakhovetski
2020-09-15 12:13 ` [PATCH v6 0/4] Add a vhost " Arnaud POULIQUEN
[not found] ` <20200917054705.GA11491@ubuntu>
2020-09-17 8:36 ` Vincent Whitchurch
2020-09-17 10:29 ` Guennadi Liakhovetski
2020-09-17 15:21 ` Arnaud POULIQUEN
[not found] ` <20200918054420.GA19246@ubuntu>
2020-09-18 7:47 ` Arnaud POULIQUEN
[not found] ` <20200918094719.GD19246@ubuntu>
2020-09-18 10:39 ` Vincent Whitchurch
2020-09-18 11:02 ` Guennadi Liakhovetski
2020-09-18 17:26 ` Arnaud POULIQUEN
2020-10-01 17:57 ` Mathieu Poirier
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