From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id CFAD51B1F3; Mon, 8 Oct 2018 17:27:02 +0200 (CEST) Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.phx2.redhat.com [10.5.11.23]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E19A15F799; Mon, 8 Oct 2018 15:27:01 +0000 (UTC) Received: from localhost.localdomain (ovpn-112-51.ams2.redhat.com [10.36.112.51]) by smtp.corp.redhat.com (Postfix) with ESMTP id 9C3FF194A8; Mon, 8 Oct 2018 15:26:58 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, tiwei.bie@intel.com, zhihong.wang@intel.com, jfreimann@redhat.com, nicknickolaev@gmail.com, i.maximets@samsung.com, bruce.richardson@intel.com, alejandro.lucero@netronome.com Cc: dgilbert@redhat.com, stable@dpdk.org, Maxime Coquelin Date: Mon, 8 Oct 2018 17:25:51 +0200 Message-Id: <20181008152557.14275-14-maxime.coquelin@redhat.com> In-Reply-To: <20181008152557.14275-1-maxime.coquelin@redhat.com> References: <20181008152557.14275-1-maxime.coquelin@redhat.com> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.39]); Mon, 08 Oct 2018 15:27:02 +0000 (UTC) Subject: [dpdk-dev] [PATCH v4 13/19] vhost: register new regions with userfaultfd X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 08 Oct 2018 15:27:03 -0000 Signed-off-by: Dr. David Alan Gilbert Signed-off-by: Maxime Coquelin --- lib/librte_vhost/vhost_user.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index 7a79145c2..46c97836a 100644 --- a/lib/librte_vhost/vhost_user.c +++ b/lib/librte_vhost/vhost_user.c @@ -975,6 +975,32 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *msg, mmap_size, alignment, mmap_offset); + + if (dev->postcopy_listening) { +#ifdef RTE_LIBRTE_VHOST_POSTCOPY + struct uffdio_register reg_struct; + + reg_struct.range.start = (uint64_t)(uintptr_t)mmap_addr; + reg_struct.range.len = mmap_size; + reg_struct.mode = UFFDIO_REGISTER_MODE_MISSING; + + if (ioctl(dev->postcopy_ufd, UFFDIO_REGISTER, + ®_struct)) { + RTE_LOG(ERR, VHOST_CONFIG, + "Failed to register ufd for region %d: (ufd = %d) %s\n", + i, dev->postcopy_ufd, + strerror(errno)); + goto err_mmap; + } + RTE_LOG(INFO, VHOST_CONFIG, + "\t userfaultfd registered for range : %llx - %llx\n", + reg_struct.range.start, + reg_struct.range.start + + reg_struct.range.len - 1); +#else + goto err_mmap; +#endif + } } for (i = 0; i < dev->nr_vring; i++) { -- 2.17.1