From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by dpdk.org (Postfix) with ESMTP id 70FDC4CBD for ; Thu, 23 Aug 2018 18:52:18 +0200 (CEST) Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id E005487A78; Thu, 23 Aug 2018 16:52:17 +0000 (UTC) Received: from localhost.localdomain (ovpn-112-46.ams2.redhat.com [10.36.112.46]) by smtp.corp.redhat.com (Postfix) with ESMTP id 787622166BA1; Thu, 23 Aug 2018 16:52:16 +0000 (UTC) From: Maxime Coquelin To: dev@dpdk.org, tiwei.bie@intel.com, zhihong.wang@intel.com, jfreimann@redhat.com Cc: dgilbert@redhat.com, Maxime Coquelin Date: Thu, 23 Aug 2018 18:51:53 +0200 Message-Id: <20180823165157.30001-7-maxime.coquelin@redhat.com> In-Reply-To: <20180823165157.30001-1-maxime.coquelin@redhat.com> References: <20180823165157.30001-1-maxime.coquelin@redhat.com> X-Scanned-By: MIMEDefang 2.78 on 10.11.54.6 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Thu, 23 Aug 2018 16:52:17 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.11.55.1]); Thu, 23 Aug 2018 16:52:17 +0000 (UTC) for IP:'10.11.54.6' DOMAIN:'int-mx06.intmail.prod.int.rdu2.redhat.com' HELO:'smtp.corp.redhat.com' FROM:'maxime.coquelin@redhat.com' RCPT:'' Subject: [dpdk-dev] [RFC 06/10] 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: Thu, 23 Aug 2018 16:52:19 -0000 Signed-off-by: Dr. David Alan Gilbert Signed-off-by: Maxime Coquelin --- lib/librte_vhost/vhost_user.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c index d93febbc3..1c75d8015 100644 --- a/lib/librte_vhost/vhost_user.c +++ b/lib/librte_vhost/vhost_user.c @@ -926,6 +926,28 @@ vhost_user_set_mem_table(struct virtio_net **pdev, struct VhostUserMsg *pmsg) mmap_size, alignment, mmap_offset); + + if (dev->postcopy_listening) { + 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)); + continue; + } + 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); + } } for (i = 0; i < dev->nr_vring; i++) { -- 2.17.1