From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:33633) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UcHgc-0006Di-96 for qemu-devel@nongnu.org; Tue, 14 May 2013 12:02:52 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UcHgZ-0007CO-H1 for qemu-devel@nongnu.org; Tue, 14 May 2013 12:02:46 -0400 Sender: Richard Henderson Message-ID: <51926018.9000606@twiddle.net> Date: Tue, 14 May 2013 09:02:32 -0700 From: Richard Henderson MIME-Version: 1.0 References: <1368475464-3116-1-git-send-email-green@moxielogic.com> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH moxie] Fix bug in tlb_fill. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Max Filippov Cc: qemu-trivial@nongnu.org, Anthony Green , qemu-devel@nongnu.org On 05/13/2013 01:33 PM, Max Filippov wrote: > memory access at points (1) and (2) can abort the instruction (it did so > b/o the bug, but it may do so legitimately when you add MMU support), > but it has modified REG(1) at those points, which will not be restored. > It's probably worth carrying register modifications in some temporary > until after the point (2). ... Which you'll recall that I pointed out during initial review, AG. r~