From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by aws-us-west-2-korg-lkml-1.web.codeaurora.org (Postfix) with ESMTP id 31C9CC004E4 for ; Wed, 13 Jun 2018 10:05:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D964C208C1 for ; Wed, 13 Jun 2018 10:05:38 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D964C208C1 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935127AbeFMKFg convert rfc822-to-8bit (ORCPT ); Wed, 13 Jun 2018 06:05:36 -0400 Received: from prv1-mh.provo.novell.com ([137.65.248.33]:50526 "EHLO prv1-mh.provo.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934969AbeFMKFf (ORCPT ); Wed, 13 Jun 2018 06:05:35 -0400 Received: from INET-PRV1-MTA by prv1-mh.provo.novell.com with Novell_GroupWise; Wed, 13 Jun 2018 04:05:35 -0600 Message-Id: <5B20EC6C02000078001CACBA@prv1-mh.provo.novell.com> X-Mailer: Novell GroupWise Internet Agent 18.0.0 Date: Wed, 13 Jun 2018 04:05:32 -0600 From: "Jan Beulich" To: "Juergen Gross" Cc: "xen-devel" , "Boris Ostrovsky" , Subject: Re: [Xen-devel] [PATCH] xen: don't use privcmd_call() from xen_mc_flush() References: <20180613095806.2978-1-jgross@suse.com> In-Reply-To: <20180613095806.2978-1-jgross@suse.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>> On 13.06.18 at 11:58, wrote: > Using privcmd_call() for a singleton multicall seems to be wrong, as > privcmd_call() is using stac()/clac() to enable hypervisor access to > Linux user space. > > Add a new xen_single_call() function to be use for that purpose. > > Reported-by: Jan Beulich > Signed-off-by: Juergen Gross Reviewed-by: Jan Beulich