From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: Re: [PULL] virtio Date: Sun, 7 Mar 2010 13:04:57 +0200 Message-ID: <20100307110457.GB20004@redhat.com> References: <20100307104252.GA19926@redhat.com> <40B76F19-1E35-4956-A34E-0A83A403F97D@suse.de> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <40B76F19-1E35-4956-A34E-0A83A403F97D@suse.de> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Alexander Graf Cc: Shirley Ma , Jamie Lokier , linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Anthony Liguori , Amit Shah , Linus Torvalds , hch@lst.de List-Id: virtualization@lists.linuxfoundation.org On Sun, Mar 07, 2010 at 11:57:23AM +0100, Alexander Graf wrote: > > On 07.03.2010, at 11:42, Michael S. Tsirkin wrote: > > > Linus, > > Please pull another virtio fix: this one fixes hotplug and > > was supposed to be applied by Rusty already > > (http://lkml.org/lkml/2009/11/30/451), but apparently got lost, > > somehow. > > > > Thanks! > > > > The following changes since commit 3119815912a220bdac943dfbdfee640414c0c611: > > Michael S. Tsirkin (1): > > virtio: fix out of range array access > > > > are available in the git repository at: > > > > git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git for-linus > > > > Michael S. Tsirkin (1): > > virtio: set pci bus master enable bit > > This is still missing an identifier for the hypervisor. We need to know if the guest will ever set bus master enabled or not, so we can have a compat hack in qemu to not check for it. > > > Alex This patch fixes hotplug with qemu 0.11-0.12 which can't make use of a new identifier without a time machine. IMHO we can't add new identifiers in time for 2.6.34 anyway, so if you want to do that, please send a patch and have it queued up for the next release. But I don't think we need an identifier for compat hack. Hypervisor can detect buggy guests when they set status to OK without enabling bus master first. Makes sense? -- MST