From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49307) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1f6Agl-000809-8W for qemu-devel@nongnu.org; Wed, 11 Apr 2018 04:01:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1f6AgW-0007CC-H9 for qemu-devel@nongnu.org; Wed, 11 Apr 2018 04:01:06 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:60246 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1f6AgW-00079A-8L for qemu-devel@nongnu.org; Wed, 11 Apr 2018 04:00:52 -0400 Date: Wed, 11 Apr 2018 16:00:36 +0800 From: Peter Xu Message-ID: <20180411080036.GD13887@xz-mi> References: <20180411072027.5656-1-tiwei.bie@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20180411072027.5656-1-tiwei.bie@intel.com> Subject: Re: [Qemu-devel] [RFC] vhost-user: introduce F_NEED_ALL_IOTLB protocol feature List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Tiwei Bie Cc: mst@redhat.com, jasowang@redhat.com, qemu-devel@nongnu.org, dan.daly@intel.com, cunming.liang@intel.com, zhihong.wang@intel.com On Wed, Apr 11, 2018 at 03:20:27PM +0800, Tiwei Bie wrote: [...] > This is just a RFC for now. It seems that, it doesn't work > as expected when guest is using kernel driver (To handle > this case, it seems that some RAM regions' events also need > to be listened). Any comments would be appreciated! Thanks! Hi, Tiwei, What's your kernel command line in the guest? Is iommu=pt there? -- Peter Xu