From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1NCdws-0006mj-VK for qemu-devel@nongnu.org; Mon, 23 Nov 2009 13:47:43 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1NCdwo-0006jd-FB for qemu-devel@nongnu.org; Mon, 23 Nov 2009 13:47:42 -0500 Received: from [199.232.76.173] (port=39469 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1NCdwo-0006jY-6y for qemu-devel@nongnu.org; Mon, 23 Nov 2009 13:47:38 -0500 Received: from mail-qy0-f194.google.com ([209.85.221.194]:39152) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1NCdwn-0005Hl-UU for qemu-devel@nongnu.org; Mon, 23 Nov 2009 13:47:38 -0500 Received: by qyk32 with SMTP id 32so2675851qyk.4 for ; Mon, 23 Nov 2009 10:47:37 -0800 (PST) Message-ID: <4B0AD8C6.7030103@codemonkey.ws> Date: Mon, 23 Nov 2009 12:47:34 -0600 From: Anthony Liguori MIME-Version: 1.0 Subject: Re: [Qemu-devel] Re: virtio: Report new guest memory statistics pertinent to memory ballooning (V4) References: <1258643169.3464.3.camel@aglitke> <4B056206.4090207@redhat.com> <1258646191.3464.16.camel@aglitke> <4B056C17.1020003@redhat.com> In-Reply-To: <4B056C17.1020003@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Avi Kivity Cc: Anthony Liguori , qemu-devel@nongnu.org, Adam Litke Avi Kivity wrote: > The new monitor will support async command completion but even then I > don't think we should allow a guest to stop command execution > indefinitely (it would tie up resources at the client). Well, I think we're going to end up pushing this to 0.13 as we're quickly approaching the 0.12 freeze. In that case, let's not bother doing two commands and let's rely on adding asynchronous result reporting in qmp. Freezing the monitor isn't really a DoS today as we support multiple monitors. Regards, Anthony Liguori