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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 27BFFC433FE for ; Tue, 16 Nov 2021 15:08:58 +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 E6A6761A8B for ; Tue, 16 Nov 2021 15:08:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org E6A6761A8B Authentication-Results: mail.kernel.org; dmarc=pass (p=none dis=none) header.from=xenproject.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=lists.xenproject.org Received: from list by lists.xenproject.org with outflank-mailman.226354.391136 (Exim 4.92) (envelope-from ) id 1mn04h-0001QV-DP; Tue, 16 Nov 2021 15:08:43 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 226354.391136; Tue, 16 Nov 2021 15:08:43 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mn04h-0001QO-8d; Tue, 16 Nov 2021 15:08:43 +0000 Received: by outflank-mailman (input) for mailman id 226354; Tue, 16 Nov 2021 15:08:42 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mn04g-0001QG-74 for xen-devel@lists.xenproject.org; Tue, 16 Nov 2021 15:08:42 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mn04g-0005zv-5M for xen-devel@lists.xenproject.org; Tue, 16 Nov 2021 15:08:42 +0000 Received: from iwj (helo=mariner.uk.xensource.com) by xenbits.xenproject.org with local-bsmtp (Exim 4.92) (envelope-from ) id 1mn04g-0003aH-4C for xen-devel@lists.xenproject.org; Tue, 16 Nov 2021 15:08:42 +0000 Received: from iwj by mariner.uk.xensource.com with local (Exim 4.89) (envelope-from ) id 1mn04Q-0000J3-PV; Tue, 16 Nov 2021 15:08:26 +0000 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xenproject.org; s=20200302mail; h=References:In-Reply-To:Subject:Cc:To:Date :Message-ID:Content-Transfer-Encoding:Content-Type:MIME-Version:From; bh=i3c9t2s+x+6crnjusMREvzyxuaKfalRRv2nS23Rzn7I=; b=D7MJtmnglrRDsQChebPC65AKgF 4+H8vefqkbTyNb2uUL23T4UChrz8Eu/MtgOA9CFTFS7qH6kI/DMPbmN2yuvrzaWpiwwyX/xg8urfk 0xkPDPWvfVxsjvU6eFZ/PMKhaNFXYn1Wc1R3EjPe7jT2qXKtUPopVHeFPtEuZ05PMZto=; From: Ian Jackson MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <24979.51557.253278.46402@mariner.uk.xensource.com> Date: Tue, 16 Nov 2021 15:08:21 +0000 To: Luca Fancellu Cc: Stefano Stabellini , Julien Grall , Jan Beulich , Bertrand Marquis , wei.chen@arm.com, Volodymyr Babchuk , Xen-devel Subject: Re: [PATCH-4.16 v2] xen/efi: Fix Grub2 boot on arm64 In-Reply-To: <1606F25D-53BF-4350-B065-B1FAB525F6A1@arm.com> References: <20211104141206.25153-1-luca.fancellu@arm.com> <81685961-501e-7a41-6f6f-bc4491645264@suse.com> <97C884F7-0577-4996-AB79-0A07A8D48FD8@arm.com> <9E52FA33-422B-4B1C-A6AF-601CDF565700@arm.com> <9bd58aa4-602b-4c64-e759-581513909457@suse.com> <191dd1b2-8e2a-ee91-f401-dda4fabf4c7c@suse.com> <3B8E0C6E-0522-4F73-B6C2-827FA45C87BA@arm.com> <010fa02f-e561-e7a8-9638-5246db9166b4@xen.org> <725F3F68-A1CE-42FB-9C8A-0700CDD02E8E@arm.com> <1606F25D-53BF-4350-B065-B1FAB525F6A1@arm.com> X-Mailer: VM 8.2.0b under 24.5.1 (i686-pc-linux-gnu) Luca Fancellu writes ("Re: [PATCH-4.16 v2] xen/efi: Fix Grub2 boot on arm64"): > > On 15 Nov 2021, at 22:00, Stefano Stabellini wrote: > > On Mon, 15 Nov 2021, Julien Grall wrote: > >> That would indeed be better. I'd like this patch to be merged in 4.16. Would > >> you be able to send a new version in the next couple of days? > > > > I'd love that too; adding Ian so that he is aware. > > Hi, yes I will prepare it and push very soon. Can someone explain to me what is going on here in management-level-speak ? I have read the thread and, as far as I can tell: There was an actual regression with Grub2 on ARM64. This was fixed by 9bc9fff04ba0 "xen/efi: Fix Grub2 boot on arm64" (committed on the 5th of Novwmber). But there are some objections to parts of that patch, from Jan. It is not clear to me what the status of those objections is. Was I wrong to think that Jan had given an R-b ? Had it been withdrawn ? I apologise if I committed a patch I shouldn't have. (I have a vague memory of some conversation about this on irc but nothing about this seems to have made it into email.) AIUI from the thread, most of this discussion is about a followup patch. I don't understand the nature of the problem the followup patch fixes, or the risk of the followup patch. Does the current state of staging have a regression or serious bug ? Who is affected by this bug and what are the consequences ? Thanks, Ian.