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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E7B30C352BE for ; Sat, 18 Apr 2020 08:57:20 +0000 (UTC) Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id B6EFF2223D for ; Sat, 18 Apr 2020 08:57:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B6EFF2223D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1jPjHR-0003Xi-VB; Sat, 18 Apr 2020 08:56:53 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1jPjHQ-0003Xd-1o for xen-devel@lists.xenproject.org; Sat, 18 Apr 2020 08:56:52 +0000 X-Inumbo-ID: 8ad19d5a-8152-11ea-83d8-bc764e2007e4 Received: from deinos.phlegethon.org (unknown [2001:41d0:8:b1d7::1]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 8ad19d5a-8152-11ea-83d8-bc764e2007e4; Sat, 18 Apr 2020 08:56:51 +0000 (UTC) Received: from tjd by deinos.phlegethon.org with local (Exim 4.92.3 (FreeBSD)) (envelope-from ) id 1jPjHL-000O86-QX; Sat, 18 Apr 2020 08:56:47 +0000 Date: Sat, 18 Apr 2020 09:56:47 +0100 From: Tim Deegan To: Jan Beulich Subject: Re: [PATCH 04/10] x86/shadow: sh_update_linear_entries() is a no-op for PV Message-ID: <20200418085647.GC92478@deinos.phlegethon.org> References: <65bfcd6a-2bb0-da6f-9e85-39f224bd81fb@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.11.1 (2018-12-01) X-SA-Known-Good: Yes X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: tim@xen.org X-SA-Exim-Scanned: No (on deinos.phlegethon.org); SAEximRunCond expanded to false X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: "xen-devel@lists.xenproject.org" , Roger Pau =?iso-8859-1?Q?Monn=E9?= , George Dunlap , Wei Liu , Andrew Cooper Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" At 16:26 +0200 on 17 Apr (1587140817), Jan Beulich wrote: > Consolidate the shadow_mode_external() in here: Check this once at the > start of the function. > > Signed-off-by: Jan Beulich > > --- a/xen/arch/x86/mm/shadow/multi.c > +++ b/xen/arch/x86/mm/shadow/multi.c > @@ -3707,34 +3707,30 @@ sh_update_linear_entries(struct vcpu *v) > */ This looks good. Can you please also delete the out-of-date comment just above that talks about about PAE linear pagetables in PV guests, to make it clear that PV guests don't need any maintenance here? Cheers, Tim.