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Fri, 14 Apr 2017 17:41:32 +0000 (UTC) From: Maxime Coquelin To: mst@redhat.com, marcandre.lureau@gmail.com, vkaplans@redhat.com, jasowang@redhat.com, wexu@redhat.com, peterx@redhat.com, yuanhan.liu@linux.intel.com, qemu-devel@nongnu.org Date: Fri, 14 Apr 2017 19:40:54 +0200 Message-Id: <20170414174056.28946-3-maxime.coquelin@redhat.com> In-Reply-To: <20170414174056.28946-1-maxime.coquelin@redhat.com> References: <20170414174056.28946-1-maxime.coquelin@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Fri, 14 Apr 2017 17:41:38 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [RFC v2 2/4] vhost-user: add vhost_user to hold the chr X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= , Maxime Coquelin Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" From: Marc-André Lureau Next patches will add more fields to the structure Signed-off-by: Marc-André Lureau Signed-off-by: Maxime Coquelin --- hw/virtio/vhost-user.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/hw/virtio/vhost-user.c b/hw/virtio/vhost-user.c index 9334a8a..f0e10d0 100644 --- a/hw/virtio/vhost-user.c +++ b/hw/virtio/vhost-user.c @@ -111,6 +111,10 @@ static VhostUserMsg m __attribute__ ((unused)); /* The version of the protocol we support */ #define VHOST_USER_VERSION (0x1) +struct vhost_user { + CharBackend *chr; +}; + static bool ioeventfd_enabled(void) { return kvm_enabled() && kvm_eventfds_enabled(); @@ -118,7 +122,8 @@ static bool ioeventfd_enabled(void) static int vhost_user_read(struct vhost_dev *dev, VhostUserMsg *msg) { - CharBackend *chr = dev->opaque; + struct vhost_user *u = dev->opaque; + CharBackend *chr = u->chr; uint8_t *p = (uint8_t *) msg; int r, size = VHOST_USER_HDR_SIZE; @@ -199,7 +204,8 @@ static bool vhost_user_one_time_request(VhostUserRequest request) static int vhost_user_write(struct vhost_dev *dev, VhostUserMsg *msg, int *fds, int fd_num) { - CharBackend *chr = dev->opaque; + struct vhost_user *u = dev->opaque; + CharBackend *chr = u->chr; int ret, size = VHOST_USER_HDR_SIZE + msg->size; /* @@ -571,11 +577,14 @@ static int vhost_user_reset_device(struct vhost_dev *dev) static int vhost_user_init(struct vhost_dev *dev, void *opaque) { uint64_t features; + struct vhost_user *u; int err; assert(dev->vhost_ops->backend_type == VHOST_BACKEND_TYPE_USER); - dev->opaque = opaque; + u = g_new0(struct vhost_user, 1); + u->chr = opaque; + dev->opaque = u; err = vhost_user_get_features(dev, &features); if (err < 0) { @@ -620,8 +629,12 @@ static int vhost_user_init(struct vhost_dev *dev, void *opaque) static int vhost_user_cleanup(struct vhost_dev *dev) { + struct vhost_user *u; + assert(dev->vhost_ops->backend_type == VHOST_BACKEND_TYPE_USER); + u = dev->opaque; + g_free(u); dev->opaque = 0; return 0;