From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:41435) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QPLi2-0008Pi-7B for qemu-devel@nongnu.org; Wed, 25 May 2011 17:33:42 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QPLi1-000333-E1 for qemu-devel@nongnu.org; Wed, 25 May 2011 17:33:42 -0400 Received: from mail-yx0-f173.google.com ([209.85.213.173]:53266) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QPLi1-00032q-BZ for qemu-devel@nongnu.org; Wed, 25 May 2011 17:33:41 -0400 Received: by yxk8 with SMTP id 8so46050yxk.4 for ; Wed, 25 May 2011 14:33:40 -0700 (PDT) Sender: Richard Henderson Message-ID: <4DDD75B2.9050402@twiddle.net> Date: Wed, 25 May 2011 14:33:38 -0700 From: Richard Henderson MIME-Version: 1.0 References: <4DDD51CD.3050909@mcgary.org> <4A09017B-4D48-4E2F-B443-5F7018C19429@suse.de> <4DDD651F.8050800@mcgary.org> In-Reply-To: <4DDD651F.8050800@mcgary.org> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] Virtio net bringup for new arch? List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Greg McGary Cc: Alexander Graf , qemu-devel@nongnu.org On 05/25/2011 01:22 PM, Greg McGary wrote: > MMIO, yes. Any opinion on whether or not to have a minimal fake PCI bus? It's probably easiest to pretend your HW has PCI, yes. Alex is suggesting that it would be easier to pretend you have one of the existing PCI host controllers as well. I don't know if that's true or not; e.g. pc_piix.c seems to have lots of pc-specific stuff inside. But it probably doesn't take more than 100 lines of code to give guest access to the pci config and i/o space. It's likely to be comparable in size to any other private bus that you'd invent. r~