From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1LNVtu-0005BP-7u for qemu-devel@nongnu.org; Thu, 15 Jan 2009 12:21:02 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1LNVts-00059H-IA for qemu-devel@nongnu.org; Thu, 15 Jan 2009 12:21:01 -0500 Received: from [199.232.76.173] (port=33066 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1LNVts-000593-CB for qemu-devel@nongnu.org; Thu, 15 Jan 2009 12:21:00 -0500 Received: from mx20.gnu.org ([199.232.41.8]:32077) by monty-python.gnu.org with esmtps (TLS-1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1LNVtr-0003Dx-C0 for qemu-devel@nongnu.org; Thu, 15 Jan 2009 12:20:59 -0500 Received: from mail.codesourcery.com ([65.74.133.4]) by mx20.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1LNVtp-0007yd-Q7 for qemu-devel@nongnu.org; Thu, 15 Jan 2009 12:20:58 -0500 From: Paul Brook Subject: Re: [Qemu-devel] [PATCH] sh4: Make atomic tas.b instruction thread safe Date: Thu, 15 Jan 2009 17:20:53 +0000 References: <1232026957.7873.2.camel@couak.urd44.com> In-Reply-To: <1232026957.7873.2.camel@couak.urd44.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200901151720.54099.paul@codesourcery.com> 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 Cc: Lionel Landwerlin On Thursday 15 January 2009, Lionel Landwerlin wrote: > This is usefull for user emulation where guest threads are emulated > with host threads and atomic guest instructions must keep atomic in > generated host instructions. Doesn't this deadlock if the instruction faults? Paul