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>
Subject: [PATCH 1/6] vhost: convert VHOST_VSOCK_SET_RUNNING to a generic ioctl
Date: Sat, 16 May 2020 12:11:04 +0200 [thread overview]
Message-ID: <20200516101109.2624-2-guennadi.liakhovetski@linux.intel.com> (raw)
In-Reply-To: <20200516101109.2624-1-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 9fe72e4..b54af9d 100644
--- a/include/uapi/linux/vhost.h
+++ b/include/uapi/linux/vhost.h
@@ -93,6 +93,8 @@
#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.
@@ -114,7 +116,7 @@
/* 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 */
--
1.9.3
next prev parent reply other threads:[~2020-05-16 10:11 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-16 10:11 [PATCH 0/6] Add a vhost RPMsg API Guennadi Liakhovetski
2020-05-16 10:11 ` Guennadi Liakhovetski [this message]
2020-05-16 10:11 ` [PATCH 2/6] vhost: (cosmetic) remove a superfluous variable initialisation Guennadi Liakhovetski
2020-05-16 10:11 ` [PATCH 3/6] rpmsg: move common structures and defines to headers Guennadi Liakhovetski
2020-05-16 10:11 ` [PATCH 4/6] rpmsg: update documentation Guennadi Liakhovetski
2020-05-16 10:11 ` [PATCH 5/6] vhost: add an rpmsg API Guennadi Liakhovetski
2020-05-16 17:00 ` [Sound-open-firmware] " Pierre-Louis Bossart
2020-05-25 13:53 ` Guennadi Liakhovetski
2020-05-26 18:30 ` Pierre-Louis Bossart
2020-05-26 18:55 ` Guennadi Liakhovetski
2020-05-26 20:09 ` Pierre-Louis Bossart
2020-05-16 10:11 ` [PATCH 6/6] rpmsg: add a device ID to also bind to the ADSP device Guennadi Liakhovetski
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