From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1JPKLo-0007Ph-HG for qemu-devel@nongnu.org; Wed, 13 Feb 2008 11:20:48 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1JPKLj-0007JE-Ab for qemu-devel@nongnu.org; Wed, 13 Feb 2008 11:20:46 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1JPKLi-0007IV-J6 for qemu-devel@nongnu.org; Wed, 13 Feb 2008 11:20:42 -0500 Received: from mail.gmx.net ([213.165.64.20]) by monty-python.gnu.org with smtp (Exim 4.60) (envelope-from ) id 1JPKLi-0008C3-4c for qemu-devel@nongnu.org; Wed, 13 Feb 2008 11:20:42 -0500 From: Michal Schulz Subject: Re: [Qemu-devel] FXSAVE doesn't #GP on alignment error Date: Wed, 13 Feb 2008 17:20:36 +0100 References: <19f34abd0802130759x7b789b63od5ed791d63d49672@mail.gmail.com> In-Reply-To: <19f34abd0802130759x7b789b63od5ed791d63d49672@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200802131720.37561.michal.schulz@gmx.de> Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On Wednesday 13 February 2008, Vegard Nossum wrote: > I am not sure if this should be treated as an error or not (it > definitely isn't critical), but I'll post it as an extra information > if it is useful or you think it should be fixed. > > According to Intel manuals, the FXSAVE instruction requires the > argument to be 16-byte aligned. On a real machine, violating this > constraint results in a #GP. From experience, qemu will not enforce > this alignment constraint. +1 from me. -- Michal Schulz