From patchwork Thu Aug 19 13:26:17 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ian Jackson X-Patchwork-Id: 12447215 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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT 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 64A6CC4338F for ; Thu, 19 Aug 2021 13:26:39 +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 2D10061151 for ; Thu, 19 Aug 2021 13:26:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 2D10061151 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.168798.308216 (Exim 4.92) (envelope-from ) id 1mGi3y-00048k-9y; Thu, 19 Aug 2021 13:26:30 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 168798.308216; Thu, 19 Aug 2021 13:26:30 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mGi3y-00048d-6j; Thu, 19 Aug 2021 13:26:30 +0000 Received: by outflank-mailman (input) for mailman id 168798; Thu, 19 Aug 2021 13:26:28 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mGi3w-00048V-N3 for xen-devel@lists.xenproject.org; Thu, 19 Aug 2021 13:26:28 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1mGi3w-0008S2-ME for xen-devel@lists.xenproject.org; Thu, 19 Aug 2021 13:26:28 +0000 Received: from iwj (helo=mariner.uk.xensource.com) by xenbits.xenproject.org with local-bsmtp (Exim 4.92) (envelope-from ) id 1mGi3w-0000MZ-LB for xen-devel@lists.xenproject.org; Thu, 19 Aug 2021 13:26:28 +0000 Received: from [172.18.45.5] (helo=zealot.relativity.greenend.org.uk) by mariner.uk.xensource.com with esmtp (Exim 4.89) (envelope-from ) id 1mGi3u-0001nu-Qf; Thu, 19 Aug 2021 14:26:26 +0100 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=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=GcxC7/3dIN2Vj70gFAN7rQms4ylJOMsnZCWakSsBSig=; b=jMP3zsdBspCjjvt7B3bJCXtpVp kOcuMqb9TZos0QTzf/QpMOs0S+fFV2esWxl6iLxW/5gR/Gp+JDtGAX/wB84fuV/R82tvc7n8DcKhZ /IhEkVKr9u+VWlY7C9ubfVMXHZx8rXB4YyXp1FbM73JoxFcEIt194Zu5At89YlwgLSSM=; From: Ian Jackson To: xen-devel@lists.xenproject.org Cc: iwj@xenproject.org, Andrew Cooper , George Dunlap , Jan Beulich , Julien Grall , Stefano Stabellini , Juergen Gross , Wei Liu Subject: [PATCH] SUPPORT.md: Explicitly desupport pvgrub1; and support grub-pv Date: Thu, 19 Aug 2021 14:26:17 +0100 Message-Id: <20210819132617.10668-1-iwj@xenproject.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <24862.23463.360542.801702@mariner.uk.xensource.com> References: <24862.23463.360542.801702@mariner.uk.xensource.com> MIME-Version: 1.0 We can no longer conveniently even test pv-grub1; osstest tests for this have just been dropped from all Xen branches (by osstest.git#8dee6e333622). This is without prejudice to its eventual removal. We should perhaps proceed cautiously with that since it may be helpful for some old guests. Under the circumstances, I think this patch has to be a backport candidate to all still-supported trees. CC: Juergen Gross CC: Jan Beulich , CC: Wei Liu Backport-requested-by: Ian Jackson Signed-off-by: Ian Jackson --- SUPPORT.md | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/SUPPORT.md b/SUPPORT.md index 317392d8f3..9db027a85f 100644 --- a/SUPPORT.md +++ b/SUPPORT.md @@ -832,6 +832,28 @@ OVMF firmware implements the UEFI boot protocol. Status, qemu-xen: Supported +### grub-pv aka pvgrub2 (guest bootloader) + + Status: Supported + +Support in upstream GRUB2 for running in Xen PV, to booting Xen PV +guests. + +Collaboration (and security coordination) and fixes will be provided +by the Xen Project, as needed. + +### x86/HVM pvgrub1 (aka stubdom pv-grub) + + Status: Obsolescent, limited support + +GRUB1 compiled with minios and Xen stubdom, to run in guest context. +This is provided in the Xen source distribution for the benefit of +very old guests; it is no longer tested, but build and functionality +fixes are welcome. + +pvgrub1 is not security-supported. However, it runs in guest context, +so there should be no implications for host security. + # Format and definitions This file contains prose, and machine-readable fragments.