From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33973) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1cxske-0008GB-9K for qemu-devel@nongnu.org; Tue, 11 Apr 2017 06:10:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1cxskb-0002uM-65 for qemu-devel@nongnu.org; Tue, 11 Apr 2017 06:10:20 -0400 Received: from mx1.redhat.com ([209.132.183.28]:45036) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1cxskb-0002te-02 for qemu-devel@nongnu.org; Tue, 11 Apr 2017 06:10:17 -0400 From: Maxime Coquelin Date: Tue, 11 Apr 2017 12:10:00 +0200 Message-Id: <20170411101002.28451-1-maxime.coquelin@redhat.com> Subject: [Qemu-devel] [RFC 0/2] vhost-user: Specify device IOTLB support List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: mst@redhat.com, vkaplans@redhat.com, jasowang@redhat.com, wexu@redhat.com, peterx@redhat.com, yuanhan.liu@linux.intel.com, virtio-comment@lists.oasis-open.org, qemu-devel@nongnu.org Cc: Maxime Coquelin This two-patches series aims at specifying the protocol update required to support device IOTLB with user backends. The protocol is very close to kernel backends, except that a new communication channel is introduced to enable the slave to send requests to the master. While unix sockets are bidirectionnal, I create a dedicated channel for slave intiated requests to simplify message handling with multi- threaded masters and slaves. Maxime Coquelin (2): spec/vhost-user: Introduce secondary channel for slave initiated requests spec/vhost-user spec: Add IOMMU support docs/specs/vhost-user.txt | 94 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) -- 2.9.3