From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44129) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V6RFl-0003ar-Sb for qemu-devel@nongnu.org; Mon, 05 Aug 2013 16:19:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1V6RFd-0003S0-Ft for qemu-devel@nongnu.org; Mon, 05 Aug 2013 16:19:41 -0400 Received: from mail-gh0-x232.google.com ([2607:f8b0:4002:c05::232]:65160) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1V6RFd-0003Rp-CM for qemu-devel@nongnu.org; Mon, 05 Aug 2013 16:19:33 -0400 Received: by mail-gh0-f178.google.com with SMTP id g15so1376009ghb.23 for ; Mon, 05 Aug 2013 13:19:33 -0700 (PDT) Sender: Richard Henderson Message-ID: <520008CE.2050302@twiddle.net> Date: Mon, 05 Aug 2013 10:19:26 -1000 From: Richard Henderson MIME-Version: 1.0 References: <51FCBFCD.5020608@web.de> <51FF71BD.5040400@suse.de> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 1/2] memory: Provide separate handling of unassigned io ports accesses List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Peter Maydell Cc: Paolo Bonzini , Jan Kiszka , =?UTF-8?B?QW5kcmVhcyBGw6RyYmVy?= , Aurelien Jarno , qemu-devel On 08/04/2013 11:59 PM, Peter Maydell wrote: > (Do we have any existing examples of container regions with their > own default IO operations? The memory.c code clearly expects them > to be OK, though - eg render_memory_region() specifically does > "render subregions; then render the region itself into any gaps".) See the Alpha pci_io container, which I defaulted to not throw exceptions because we don't emulate all of the devices on the SuperIO chip. Exactly the problem we're talking about in this thread, no? r~