From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53463) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cICUq-0008EU-Ue for qemu-devel@nongnu.org; Sat, 17 Dec 2016 05:45:45 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cICUq-0008Jr-49 for qemu-devel@nongnu.org; Sat, 17 Dec 2016 05:45:44 -0500 Received: from mga05.intel.com ([192.55.52.43]:21540) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cICUp-0007ss-Rg for qemu-devel@nongnu.org; Sat, 17 Dec 2016 05:45:44 -0500 From: Wei Wang Date: Sat, 17 Dec 2016 18:43:36 +0800 Message-Id: <1481971427-11094-27-git-send-email-wei.w.wang@intel.com> In-Reply-To: <1481971427-11094-1-git-send-email-wei.w.wang@intel.com> References: <1481971427-11094-1-git-send-email-wei.w.wang@intel.com> Subject: [Qemu-devel] [PATCH v1 26/37] vhost-pci-slave/msg: VHOST_USER_GET_VRING_BASE List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: marcandre.lureau@gmail.com, mst@redhat.com, stefanha@redhat.com, pbonzini@redhat.com, qemu-devel@nongnu.org, virtio-dev@lists.oasis-open.org Cc: Wei Wang Signed-off-by: Wei Wang --- hw/virtio/vhost-pci-slave.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/hw/virtio/vhost-pci-slave.c b/hw/virtio/vhost-pci-slave.c index 1957d3f..cdeb710 100644 --- a/hw/virtio/vhost-pci-slave.c +++ b/hw/virtio/vhost-pci-slave.c @@ -217,6 +217,16 @@ static void vp_slave_set_vring_base(VhostUserMsg *msg) pvq_node->last_avail_idx = msg->payload.u64; } +static int vp_slave_get_vring_base(CharBackend *chr_be, VhostUserMsg *msg) +{ + /* send back vring base to qemu */ + msg->flags |= VHOST_USER_REPLY_MASK; + msg->size = sizeof(m.payload.state); + msg->payload.state.num = 0; + + return vp_slave_write(chr_be, msg); +} + static void vp_slave_set_vring_addr(VhostUserMsg *msg) { PeerVqNode *pvq_node = QLIST_FIRST(&vp_slave->pvq_list); @@ -319,6 +329,11 @@ static void vp_slave_read(void *opaque, const uint8_t *buf, int size) case VHOST_USER_SET_VRING_BASE: vp_slave_set_vring_base(&msg); break; + case VHOST_USER_GET_VRING_BASE: + ret = vp_slave_get_vring_base(chr_be, &msg); + if (ret < 0) + goto err_handling; + break; case VHOST_USER_SET_VRING_ADDR: vp_slave_set_vring_addr(&msg); break; -- 2.7.4