From mboxrd@z Thu Jan 1 00:00:00 1970 From: Weidong Han Subject: Re: Re: Xen VGA graphics passthrough for secondary adapters, vBAR=pBAR etc Date: Mon, 12 Apr 2010 18:08:17 +0800 Message-ID: <4BC2F111.9020503@intel.com> References: <20100412072119.GW1878@reaktio.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Christian Tramnitz Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org Christian Tramnitz wrote: > 12.04.2010 09:21, Pasi K=E4rkk=E4inen wrote: > =20 >> Hello, >> >> Now that Xen 4.0.0 is out and has support for primary graphics passthr= u >> and many people have been using it already and asking for a status upd= ate >> for secondary adapter passthru I thought of opening a new thread about= this. >> >> What are the actual issues that need to be resolved to get the >> secondary graphics passthru working? Probably related to VGA BIOS exec= ution >> in the guest? >> >> How about the vBAR=3DpBAR stuff required for some (Nvidia) cards? >> How do we get that functionality integrated so people don't need addit= ional patches? >> >> Was there also a problem that a working VGA BIOS cannot be copied from= some cards >> and they need to use/load it from a file? >> >> Thanks! >> >> -- Pasi >> >> btw. I've created a wiki page where we can list all the tested/working= graphics adapters: >> http://wiki.xensource.com/xenwiki/XenVGAPassthroughTestedAdapters >> =20 > > > I already added that suggestion to the 4.1 suggested features some days= =20 > ago and planned to rebase the patches to 4.0 if they need any adjustmen= ts. > One major change I'd like to see is dynamic (and thus optional)=20 > configuration of the mem space to be mapped and the BIOS file to be use= d=20 > =20 Could you explain "dynamic configuration of the mem space to be mapped"?=20 do you mean MMIO memories? > (instead of configuration at compile time). > Also afair the previous patch set also had a maximum size (correct me i= f=20 > I'm wrong) for the BIOS size that was to small for recent (HD4800+) ATI= =20 > devices. > =20 What is the size of HD4800 bios? It can adjust memory map address=20 definitions in hvmloader to solve it. Regards, Weidong > > Best regards, > Christian > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > =20