From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcelo Tosatti Subject: Re: [PATCH] Make virtio devices multi-function Date: Tue, 22 Apr 2008 12:17:50 -0300 Message-ID: <20080422151750.GA15375@dmt> References: <1208873728-10194-1-git-send-email-aliguori@us.ibm.com> <480DF70D.8010609@qumranet.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm-devel@lists.sourceforge.net, Chris Wright To: Avi Kivity Return-path: Content-Disposition: inline In-Reply-To: <480DF70D.8010609@qumranet.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: kvm-devel-bounces@lists.sourceforge.net Errors-To: kvm-devel-bounces@lists.sourceforge.net List-Id: kvm.vger.kernel.org On Tue, Apr 22, 2008 at 05:32:45PM +0300, Avi Kivity wrote: > Anthony Liguori wrote: > > This patch changes virtio devices to be multi-function devices whenever > > possible. This increases the number of virtio devices we can support now by > > a factor of 8. > > > > With this patch, I've been able to launch a guest with either 220 disks or 220 > > network adapters. > > > > > > Does this play well with hotplug? Perhaps we need to allocate a new > device on hotplug. > > (certainly if we have a device with one function, which then gets > converted to a multifunction device) Would have to change the hotplug code to handle functions... It sounds less hacky to just extend the PCI slots instead of (ab)using multiple functions per-slot. ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone