From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51060) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YL6Sx-0004TZ-Vx for qemu-devel@nongnu.org; Tue, 10 Feb 2015 03:46:44 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YL6Su-0004tv-Qw for qemu-devel@nongnu.org; Tue, 10 Feb 2015 03:46:43 -0500 Received: from mx1.redhat.com ([209.132.183.28]:58081) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YL6Su-0004to-JT for qemu-devel@nongnu.org; Tue, 10 Feb 2015 03:46:40 -0500 Date: Tue, 10 Feb 2015 09:46:32 +0100 From: "Michael S. Tsirkin" Message-ID: <20150210084632.GA8397@redhat.com> References: <1423547293-8448-1-git-send-email-haifeng.lin@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1423547293-8448-1-git-send-email-haifeng.lin@huawei.com> Subject: Re: [Qemu-devel] [PATCH v1 1/2] vhost-user: support SET_MEM_TABLE waite the result of mmap List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: linhaifeng Cc: arei.gonglei@huawei.com, qemu-devel@nongnu.org On Tue, Feb 10, 2015 at 01:48:12PM +0800, linhaifeng wrote: > From: Linhaifeng > > Slave should reply to master and set u64 to 0 if > mmap all regions success otherwise set u64 to 1. > > Signed-off-by: Linhaifeng How does this work with existig slaves though? > --- > docs/specs/vhost-user.txt | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/docs/specs/vhost-user.txt b/docs/specs/vhost-user.txt > index 650bb18..c96bf6b 100644 > --- a/docs/specs/vhost-user.txt > +++ b/docs/specs/vhost-user.txt > @@ -171,6 +171,7 @@ Message types > Id: 5 > Equivalent ioctl: VHOST_SET_MEM_TABLE > Master payload: memory regions description > + Slave payload: u64 (0:success >0:failed) > > Sets the memory map regions on the slave so it can translate the vring > addresses. In the ancillary data there is an array of file descriptors > -- > 1.7.12.4 >