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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 BA52AC433E0 for ; Tue, 16 Jun 2020 06:51:39 +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 92AF62074D for ; Tue, 16 Jun 2020 06:51:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 92AF62074D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=suse.com 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 4.92) (envelope-from ) id 1jl5RG-0004qY-RC; Tue, 16 Jun 2020 06:51:18 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1jl5RF-0004qT-Sk for xen-devel@lists.xenproject.org; Tue, 16 Jun 2020 06:51:17 +0000 X-Inumbo-ID: c6b2893c-af9d-11ea-bb8b-bc764e2007e4 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id c6b2893c-af9d-11ea-bb8b-bc764e2007e4; Tue, 16 Jun 2020 06:51:17 +0000 (UTC) X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx2.suse.de (Postfix) with ESMTP id EC30DAF96; Tue, 16 Jun 2020 06:51:19 +0000 (UTC) Subject: Re: [PATCH 2/9] tests/cpu-policy: Confirm that CPUID serialisation is sorted To: Andrew Cooper , Ian Jackson References: <20200615141532.1927-1-andrew.cooper3@citrix.com> <20200615141532.1927-3-andrew.cooper3@citrix.com> <24295.35624.644030.417783@mariner.uk.xensource.com> <24295.38146.988316.316252@mariner.uk.xensource.com> <53a1f221-89ae-0d8e-32ef-c9c8c83580c5@citrix.com> From: Jan Beulich Message-ID: Date: Tue, 16 Jun 2020 08:51:16 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <53a1f221-89ae-0d8e-32ef-c9c8c83580c5@citrix.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Xen-devel , Paul Durrant , Wei Liu , Roger Pau Monne Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" On 15.06.2020 18:12, Andrew Cooper wrote: > On 15/06/2020 16:34, Ian Jackson wrote: >> Andrew Cooper writes ("Re: [PATCH 2/9] tests/cpu-policy: Confirm that CPUID serialisation is sorted"): >>> Nothing runs it by default, but it is part of my prepush testing for >>> anything in the relevant area. >>> >>> We should do something better, but its not totally trivial.  The x86 >>> emulator test for example needs a fairly bleeding edge version of >>> binutils, given that we routinely add support for bleeding edge >>> instruction groups. >> Hmmm. Is it likely that installing the version from Debian testing >> (say) would work ? Or do we want to build it from source ? These are >> all possibilities. > > Pulling from Sid may work, if they're fairly prompt to update to new > binutils releases.  (They're certainly up to date ATM) > > Jan: are we ever in a position where we need something more bleeding > edge than the latest binutils release? Gcc needs to be about as recent: Right now the minimum is gcc 8 I think, and I have a few hacks in place locally to make things somewhat work back to gcc 5, as on my laptop (and hence when working from home) I don't have any custom gcc builds. Jan