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=-6.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 3C22BCA9EA0 for ; Mon, 28 Oct 2019 08:58:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 0D1A320B7C for ; Mon, 28 Oct 2019 08:58:21 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=zytor.com header.i=@zytor.com header.b="GIY6FWFq" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387559AbfJ1I6T (ORCPT ); Mon, 28 Oct 2019 04:58:19 -0400 Received: from terminus.zytor.com ([198.137.202.136]:38859 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730849AbfJ1I6T (ORCPT ); Mon, 28 Oct 2019 04:58:19 -0400 Received: from [IPv6:2601:646:8600:3281:9f1:c5fc:f434:6a14] ([IPv6:2601:646:8600:3281:9f1:c5fc:f434:6a14]) (authenticated bits=0) by mail.zytor.com (8.15.2/8.15.2) with ESMTPSA id x9S8kpgE2149778 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Mon, 28 Oct 2019 01:46:57 -0700 DKIM-Filter: OpenDKIM Filter v2.11.0 mail.zytor.com x9S8kpgE2149778 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=zytor.com; s=2019091901; t=1572252419; bh=Skodpi7nxzjzM78bU7LUUKImk5EIuBVZg2w//InSrlA=; h=Date:In-Reply-To:References:Subject:To:CC:From:From; b=GIY6FWFqmb/JHimgI8SsfdgfiZRpBb8TM+vQmDCQ0kUqXCIe4S/ENEhbqQVuGqto5 gDJonHp5mnnv6Ju3KmVvKLu+QRoSef5OlryrIP5fvx3DFH+E431DcFy7AONIRcNvZv wuuFPG90IHiSRZTdUfVItRzn81mywuogRuHtFk2zf1cmwM9DLcKEzWfbI/IqkzhFiq VqhApkc+x4e7aBFZnq28V+oJE5hI4rt3Ooyne4Z2Y1h/TsIDelXli3wQJM1AtTQb0t M+xwLznPWjg0KdCruXHQQYKi6cVJajz7FcXAsVqgaj+bZuaxbHLlHlI4/WS/+WR03j R1rS8Fx+2oBqA== Date: Mon, 28 Oct 2019 01:46:43 -0700 User-Agent: K-9 Mail for Android In-Reply-To: <20191025073858.15081-1-jgross@suse.com> References: <20191025073858.15081-1-jgross@suse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH] xen: issue deprecation warning for 32-bit pv guest To: Juergen Gross , xen-devel@lists.xenproject.org, x86@kernel.org, linux-kernel@vger.kernel.org CC: Boris Ostrovsky , Stefano Stabellini , Thomas Gleixner , Ingo Molnar , Borislav Petkov From: hpa@zytor.com Message-ID: <088E9605-9FFA-42B7-BAB2-89D9DF0756BB@zytor.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On October 25, 2019 12:38:58 AM PDT, Juergen Gross wrot= e: >Support for the kernel as Xen 32-bit PV guest will soon be removed=2E >Issue a warning when booted as such=2E > >Signed-off-by: Juergen Gross >--- > arch/x86/xen/enlighten_pv=2Ec | 8 ++++++++ > 1 file changed, 8 insertions(+) > >diff --git a/arch/x86/xen/enlighten_pv=2Ec b/arch/x86/xen/enlighten_pv=2E= c >index 58f79ab32358=2E=2E5bfea374a160 100644 >--- a/arch/x86/xen/enlighten_pv=2Ec >+++ b/arch/x86/xen/enlighten_pv=2Ec >@@ -117,6 +117,14 @@ static void __init xen_banner(void) > printk(KERN_INFO "Xen version: %d=2E%d%s%s\n", > version >> 16, version & 0xffff, extra=2Eextraversion, > xen_feature(XENFEAT_mmu_pt_update_preserve_ad) ? " >(preserve-AD)" : ""); >+ >+#ifdef CONFIG_X86_32 >+ pr_warn("WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! >WARNING!\n" >+ "Support for running as 32-bit PV-guest under Xen will soon be >removed\n" >+ "from the Linux kernel!\n" >+ "Please use either a 64-bit kernel or switch to HVM or PVH mode!\n" >+ "WARNING! WARNING! WARNING! WARNING! WARNING! WARNING! WARNING!\n"); >+#endif > } >=20 > static void __init xen_pv_init_platform(void) And there was much rejoicing=2E Yaay=2E --=20 Sent from my Android device with K-9 Mail=2E Please excuse my brevity=2E