From mboxrd@z Thu Jan 1 00:00:00 1970 From: Borislav Petkov Subject: Re: [PATCH 3/4] x86,asm: Re-work smp_store_mb() Date: Wed, 13 Jan 2016 17:17:04 +0100 Message-ID: <20160113161704.GA13146@pd.tnic> References: <20151102201535.GB1707@linux-uzut.site> <20160112150032-mutt-send-email-mst@redhat.com> <56956276.1090705@kernel.org> <20160113001824-mutt-send-email-mst@redhat.com> <56958467.6010808@zytor.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: virtualization-bounces@lists.linux-foundation.org Errors-To: virtualization-bounces@lists.linux-foundation.org To: Linus Torvalds Cc: Davidlohr Bueso , Davidlohr Bueso , Peter Zijlstra , Linux Kernel Mailing List , "Michael S. Tsirkin" , the arch/x86 maintainers , Andy Lutomirski , Andy Lutomirski , "H. Peter Anvin" , "Paul E. McKenney" , Thomas Gleixner , virtualization , Ingo Molnar List-Id: virtualization@lists.linuxfoundation.org On Tue, Jan 12, 2016 at 03:24:05PM -0800, Linus Torvalds wrote: > But talking to the hw people about this is certainly a good idea regardless. I'm not seeing it in this thread but I might've missed it too. Anyway, I'm being reminded that the ADD will change rFLAGS while MFENCE doesn't touch them. Do we care? -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply. From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753181AbcAMQRV (ORCPT ); Wed, 13 Jan 2016 11:17:21 -0500 Received: from mail.skyhub.de ([78.46.96.112]:53664 "EHLO mail.skyhub.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752067AbcAMQRT (ORCPT ); Wed, 13 Jan 2016 11:17:19 -0500 Date: Wed, 13 Jan 2016 17:17:04 +0100 From: Borislav Petkov To: Linus Torvalds Cc: "H. Peter Anvin" , "Michael S. Tsirkin" , Andy Lutomirski , Andy Lutomirski , Davidlohr Bueso , Davidlohr Bueso , Peter Zijlstra , the arch/x86 maintainers , Linux Kernel Mailing List , virtualization , Thomas Gleixner , "Paul E. McKenney" , Ingo Molnar Subject: Re: [PATCH 3/4] x86,asm: Re-work smp_store_mb() Message-ID: <20160113161704.GA13146@pd.tnic> References: <20151102201535.GB1707@linux-uzut.site> <20160112150032-mutt-send-email-mst@redhat.com> <56956276.1090705@kernel.org> <20160113001824-mutt-send-email-mst@redhat.com> <56958467.6010808@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 12, 2016 at 03:24:05PM -0800, Linus Torvalds wrote: > But talking to the hw people about this is certainly a good idea regardless. I'm not seeing it in this thread but I might've missed it too. Anyway, I'm being reminded that the ADD will change rFLAGS while MFENCE doesn't touch them. Do we care? -- Regards/Gruss, Boris. ECO tip #101: Trim your mails when you reply.