From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1OATAf-0003FX-4N for qemu-devel@nongnu.org; Fri, 07 May 2010 15:25:13 -0400 Received: from [140.186.70.92] (port=55700 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OATAb-0003FM-74 for qemu-devel@nongnu.org; Fri, 07 May 2010 15:25:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OATAZ-0007uU-Fc for qemu-devel@nongnu.org; Fri, 07 May 2010 15:25:09 -0400 Received: from lo.gmane.org ([80.91.229.12]:40852) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OATAZ-0007tz-9h for qemu-devel@nongnu.org; Fri, 07 May 2010 15:25:07 -0400 Received: from list by lo.gmane.org with local (Exim 4.69) (envelope-from ) id 1OATAW-0004Ne-2n for qemu-devel@nongnu.org; Fri, 07 May 2010 21:25:04 +0200 Received: from p5de97e16.dip.t-dialin.net ([93.233.126.22]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 07 May 2010 21:25:04 +0200 Received: from bernhard.kohl by p5de97e16.dip.t-dialin.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 07 May 2010 21:25:04 +0200 From: Bernhard Kohl Date: Fri, 07 May 2010 21:17:28 +0200 Message-ID: References: <4BE19A1C.2040800@nsn.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit In-Reply-To: <4BE19A1C.2040800@nsn.com> Subject: [Qemu-devel] Re: [PATCH] exec: optimize lduw_phys and stw_phys List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Am 05.05.2010 18:17, schrieb Bernhard Kohl: > Implementation of the optimized code for these two functions. > > This is necessary for virtio which reads and writes VirtQueue index > fields using these functions. The assumption is that this are atomic > operations, which is not the case, if the memcpy() function which is > used in the non optimized code does single byte copying. This happens > for example with an older WindRiver glibc. > > Signed-off-by: Bernhard Kohl Hi, due to a mail server malfunction I resent this message one day later. Please ignore this one. Bernhard