From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Tramnitz Subject: Re: Xen VGA graphics passthrough for secondary adapters, vBAR=pBAR etc Date: Mon, 12 Apr 2010 12:18:50 +0200 Message-ID: References: <20100412072119.GW1878@reaktio.net> <4BC2F111.9020503@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4BC2F111.9020503@intel.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org 12.04.2010 12:08, Weidong Han wrote: >> I already added that suggestion to the 4.1 suggested features some >> days ago and planned to rebase the patches to 4.0 if they need any >> adjustments. >> One major change I'd like to see is dynamic (and thus optional) >> configuration of the mem space to be mapped and the BIOS file to be used > Could you explain "dynamic configuration of the mem space to be mapped"? > do you mean MMIO memories? Yes, the MMIO BARs that currently need manual changes to dsdt.asl before compilation. If we could make that a runtime configuration option or even allow dynamic detection (via libpci?) this would help a lot. It would also make the changes less intrusive (and increase the chances of being accepted I hope). >> Also afair the previous patch set also had a maximum size (correct me >> if I'm wrong) for the BIOS size that was to small for recent (HD4800+) >> ATI devices. > What is the size of HD4800 bios? It can adjust memory map address > definitions in hvmloader to solve it. It's 128kB (current limitation is 64k), but that should be easy enough to fix, just wanted to mention it while we're discussing the topic ;-) Are you still actively working on this topic? Haven't seen a reply to my previous mails to list if work is still being done. Just want to avoid, that we're both working on the same thing... Best regards, Christian