From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Donnelly Subject: Re: R/W HG memory mappings with kvm? Date: Thu, 9 Jul 2009 10:01:17 +1200 Message-ID: <5f370d430907081501m60064c7dp23ebd4153c9050f1@mail.gmail.com> References: <5f370d430907051541o752d3dbag80d5cb251e5e4d00@mail.gmail.com> <4A51A9F0.7000909@redhat.com> <5f370d430907071523t120da246wf366dbfbbac9169b@mail.gmail.com> <4A54225F.1050703@redhat.com> <4A551387.3000702@cs.ualberta.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Avi Kivity , kvm@vger.kernel.org To: Cam Macdonell Return-path: Received: from mail-gx0-f226.google.com ([209.85.217.226]:43838 "EHLO mail-gx0-f226.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754550AbZGHWBT convert rfc822-to-8bit (ORCPT ); Wed, 8 Jul 2009 18:01:19 -0400 Received: by gxk26 with SMTP id 26so3687240gxk.13 for ; Wed, 08 Jul 2009 15:01:18 -0700 (PDT) In-Reply-To: <4A551387.3000702@cs.ualberta.ca> Sender: kvm-owner@vger.kernel.org List-ID: On Thu, Jul 9, 2009 at 9:45 AM, Cam Macdonell wrote= : > Hi Stephen, > > Here is the latest patch that supports interrupts. =A0I am currently = working > on a broadcast mechanism that should be ready fairly soon. > > http://patchwork.kernel.org/patch/22368/ > > I have some test scripts that can demonstrate how to use the memory b= etween > guest/host and guest/guest. =A0Let me know if you would like me to se= nd them > to you. Hi Cam, Thanks for the pointer. That makes perfect sense, I'm familiar with PCI drivers so that's fine. Is there a corresponding qemu patch for the backend to the guest pci driver? I'm curious how the buffer memory is allocated and how BAR accesses are handled from the host side. Regards, Stephen.