From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:41182) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ql3v4-0003qt-9L for qemu-devel@nongnu.org; Sun, 24 Jul 2011 15:00:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Ql3v3-0005e8-Ir for qemu-devel@nongnu.org; Sun, 24 Jul 2011 15:00:54 -0400 Received: from mail-vx0-f173.google.com ([209.85.220.173]:61692) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Ql3v3-0005e3-FO for qemu-devel@nongnu.org; Sun, 24 Jul 2011 15:00:53 -0400 Received: by vxi29 with SMTP id 29so3013700vxi.4 for ; Sun, 24 Jul 2011 12:00:52 -0700 (PDT) Sender: Richard Henderson Message-ID: <4E2C6BE1.5010405@twiddle.net> Date: Sun, 24 Jul 2011 12:00:49 -0700 From: Richard Henderson MIME-Version: 1.0 References: <1311448659-17424-1-git-send-email-rth@twiddle.net> <1311448659-17424-2-git-send-email-rth@twiddle.net> <4E2C1E0D.4050100@codemonkey.ws> <4E2C4B5B.9030402@twiddle.net> <4E2C6AC0.3010203@codemonkey.ws> In-Reply-To: <4E2C6AC0.3010203@codemonkey.ws> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 1/7] Export the unassigned_mem read/write functions. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Anthony Liguori Cc: qemu-devel@nongnu.org On 07/24/2011 11:56 AM, Anthony Liguori wrote: > What is returned by totally unregistered MMIO is defined by the > chipset. What's returned by an empty space in the MMIO space of a > device is device specific. It's one and the same here, it's the chipset I'm implementing. > What does your device return if there's an access at 32? A machine check. r~