Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753330AbaLALB1 (ORCPT ); Mon, 1 Dec 2014 06:01:27 -0500 Received: from smtp02.citrix.com ([66.165.176.63]:58401 "EHLO SMTP02.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753185AbaLALBY (ORCPT ); Mon, 1 Dec 2014 06:01:24 -0500 X-IronPort-AV: E=Sophos;i="5.07,493,1413244800"; d="scan'208";a="198344998" Message-ID: <547C4A7E.6020207@citrix.com> Date: Mon, 1 Dec 2014 11:01:18 +0000 From: David Vrabel User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Icedove/31.2.0 MIME-Version: 1.0 To: Juergen Gross , Andrew Cooper , "Luis R. Rodriguez" CC: , , "Luis R. Rodriguez" , , Davidlohr Bueso , Joerg Roedel , Jan Beulich , , , Borislav Petkov , Olaf Hering Subject: Re: [Xen-devel] [PATCH] xen: privcmd: schedule() after private hypercall when non CONFIG_PREEMPT References: <1417040805-15857-1-git-send-email-mcgrof@do-not-panic.com> <5476C66F.5040308@suse.com> <20141127183616.GV25677@wotan.suse.de> <54777277.5040401@citrix.com> <5477FECF.2060404@suse.com> In-Reply-To: <5477FECF.2060404@suse.com> Content-Type: text/plain; charset="windows-1252" Content-Transfer-Encoding: 7bit X-DLP: MIA1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 28/11/14 04:49, Juergen Gross wrote: > On 11/27/2014 07:50 PM, Andrew Cooper wrote: >> >> XenServer uses >> >> https://github.com/xenserver/linux-3.x.pg/blob/master/master/0001-x86-xen-allow-privcmd-hypercalls-to-be-preempted.patch >> >> >> to deal with these issues. That patch is based on 3.10. > > Clever. :-) > >> >> I can remember whether this has been submitted upstream before (and >> there were outstanding issues), or whether it fell at an inconvenient >> time with our development cycles. > > I found > > http://lists.xen.org/archives/html/xen-devel/2014-02/msg02540.html > > and nothing else. I dropped it because it copy-and-paste a bunch of otherwise generic x86 assembler and looked unlikely to get an x86 maintainer ack. If you think otherwise, feel free to pick it up and run with it. David -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/