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=-5.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,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 5B83DC43331 for ; Tue, 24 Mar 2020 13:09:18 +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 304C520775 for ; Tue, 24 Mar 2020 13:09:18 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 304C520775 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 4.89) (envelope-from ) id 1jGjIB-0001W2-0j; Tue, 24 Mar 2020 13:08:27 +0000 Received: from us1-rack-iad1.inumbo.com ([172.99.69.81]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1jGjI9-0001Vx-V6 for xen-devel@lists.xenproject.org; Tue, 24 Mar 2020 13:08:25 +0000 X-Inumbo-ID: 8b2358a6-6dd0-11ea-92cf-bc764e2007e4 Received: from mx2.suse.de (unknown [195.135.220.15]) by us1-rack-iad1.inumbo.com (Halon) with ESMTPS id 8b2358a6-6dd0-11ea-92cf-bc764e2007e4; Tue, 24 Mar 2020 13:08:24 +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 CDFC0ACA2; Tue, 24 Mar 2020 13:08:23 +0000 (UTC) To: =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , Boris Ostrovsky References: <20200323143835.46117-1-roger.pau@citrix.com> <24185.62757.192771.632832@mariner.uk.xensource.com> <24185.62908.869446.447190@mariner.uk.xensource.com> <20200324120050.GK24458@Air-de-Roger.citrite.net> From: =?UTF-8?B?SsO8cmdlbiBHcm/Dnw==?= Message-ID: <40b9a119-a787-2e4b-8383-87510a9cccb9@suse.com> Date: Tue, 24 Mar 2020 14:08:23 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200324120050.GK24458@Air-de-Roger.citrite.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Subject: Re: [Xen-devel] [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG 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" , Ian Jackson Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" On 24.03.20 13:00, Roger Pau Monné wrote: > Adding Juergen and Boris for feedback. > > On Tue, Mar 24, 2020 at 11:57:48AM +0000, Ian Jackson wrote: >> Ian Jackson writes ("Re: [PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG"): >>> Roger Pau Monne writes ("[PATCH OSSTEST] kernel-build: enable XEN_BALLOON_MEMORY_HOTPLUG"): >>>> This allows a PVH/HVM domain to use unpopulated memory ranges to map >>>> foreign memory or grants, and is required for a PVH dom0 to function >>>> properly. >>>> >>>> Signed-off-by: Roger Pau Monné >>> >>> Acked-by: Ian Jackson >>> >>> I will push this to pretest immediately. >> >> Now done. Would you consider whether the default should be changed >> in Linux and prepare a patch to do so if appropriate ? > > DYK if there's any reason why this is not on by default? AFAIK the default has been off since introduction in 2011. I don't know the reason for that. Juergen