Received: by 2002:a25:d7c1:0:0:0:0:0 with SMTP id o184csp4102517ybg; Fri, 25 Oct 2019 13:21:47 -0700 (PDT) X-Google-Smtp-Source: APXvYqyhfwKfz7qtN00VW//LNNYmoxdJ70IOaxGDVnuGg24+7vzrG3Rd43dcsicRHk2t6TvQ/bgO X-Received: by 2002:a05:6402:20c:: with SMTP id t12mr6057645edv.109.1572034906963; Fri, 25 Oct 2019 13:21:46 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1572034906; cv=none; d=google.com; s=arc-20160816; b=LhsBQ8+nnmWzlh0rjB8+qjs/VcABSZO3bePvEIwAyQRbaCfE7y+TJY1mha/sCFXQjW 3W5D+YPc3YZKJZWNTeu4K0/pu9B4+vnbS467yMaYHEBlNJzmgno9Ip90TZSFI5E0/0TY CTL37UfnYf10c8lUOlAIpIHYzbsbwEAMfHOqHZTi/E1ivVbHVFTuYChfUlNq5X3dd6iO vFVef/Fd+aBFLwc7FKUpRAG+WMrIq3zScJXoRei1GFPxMZGMk4w0XVD1478ojM7soXJo xlwOT6Hq9qBBCFqbI2X1C0Zqcaq4ZMqgV0PbsZ37+HLOF149qdZmv5YkpGm2EbypUfmV XA0g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-language :content-transfer-encoding:in-reply-to:mime-version:user-agent:date :message-id:autocrypt:openpgp:from:references:cc:to:subject :dkim-signature; bh=n5GS1kf2mOLHbfYcL5/K2P7Jbbm7VZM/Cys5HePbfFo=; b=F1hsbzrLlWqtCpVI+wpkJc5o5ZgU0PRyQwnUyPUL6V92U8UvwtGNmibE21zHLH1Bcx HtHVi/gM2e+UYG6WAmvsDVE5WGJMPBNHuYkIMtEaaS1cBXbJPzduGQ/1ZHePnJGF6Ibn U9PURygqpEYupegVVdZ4JbFlvoPbvJZU4ARYslOJgZDdusAX9uOZH9jDJRiEeYJmPsGd iXBRRbu0w/j7zRpghUu5NGO6emnE6Js6Rjf/CjSLxgqwYf86uEmfkGCTLUsJpkfNuPB8 3XKVm9hAC4X3Li2VWFTwwG8hJmEkX3wQLToNhQPJMrPBKPSlkhb0P59sg+4QEgWn1kyQ ydeQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2019-08-05 header.b=CACosMR7; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id t26si1894702edr.36.2019.10.25.13.21.23; Fri, 25 Oct 2019 13:21:46 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@oracle.com header.s=corp-2019-08-05 header.b=CACosMR7; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=oracle.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2504917AbfJYNuR (ORCPT + 99 others); Fri, 25 Oct 2019 09:50:17 -0400 Received: from userp2120.oracle.com ([156.151.31.85]:54216 "EHLO userp2120.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2502085AbfJYNuR (ORCPT ); Fri, 25 Oct 2019 09:50:17 -0400 Received: from pps.filterd (userp2120.oracle.com [127.0.0.1]) by userp2120.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x9PDn9mG166199; Fri, 25 Oct 2019 13:49:37 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=subject : to : cc : references : from : message-id : date : mime-version : in-reply-to : content-type : content-transfer-encoding; s=corp-2019-08-05; bh=n5GS1kf2mOLHbfYcL5/K2P7Jbbm7VZM/Cys5HePbfFo=; b=CACosMR7Oe6vkGHwUNy3mURwEiRAkzKEW+rwe73Ehic6wN/XRAxoGLa7MmP7mC6Rychv WA5us/QfnRvzmH1+FYlYAh1zTB71uIA8v6NxJbqxO3Sq0C27jyJL3bWVz44/z+q4jV2E pt1JN1pKv9e8ceCyztbBBTwObd5uUi4hMUAl6/OLS6UP4X5dypHBuF/3iZHLG0pt/+eK mhVptPONfoC8TYYVjInuf2f5f1QFLYyrMLBYCbZIu6Mh+HLZDsNbyS+wkMbbEEcpvxr3 0YyirQMaDBHMfOT64sfmIX26ycJ5XBsXRFfk5uwqqROw7FWrTY3slkbYofXOo3HwXe4Y NA== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2120.oracle.com with ESMTP id 2vqu4rayrx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 25 Oct 2019 13:49:37 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.27/8.16.0.27) with SMTP id x9PDmHkN177330; Fri, 25 Oct 2019 13:49:36 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by userp3020.oracle.com with ESMTP id 2vuun19w3v-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 25 Oct 2019 13:49:36 +0000 Received: from abhmp0015.oracle.com (abhmp0015.oracle.com [141.146.116.21]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x9PDnZfw013783; Fri, 25 Oct 2019 13:49:35 GMT Received: from bostrovs-us.us.oracle.com (/10.152.32.65) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 25 Oct 2019 06:49:34 -0700 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: Stefano Stabellini , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" References: <20191025073858.15081-1-jgross@suse.com> From: Boris Ostrovsky Openpgp: preference=signencrypt Autocrypt: addr=boris.ostrovsky@oracle.com; prefer-encrypt=mutual; keydata= mQINBFH8CgsBEAC0KiOi9siOvlXatK2xX99e/J3OvApoYWjieVQ9232Eb7GzCWrItCzP8FUV PQg8rMsSd0OzIvvjbEAvaWLlbs8wa3MtVLysHY/DfqRK9Zvr/RgrsYC6ukOB7igy2PGqZd+M MDnSmVzik0sPvB6xPV7QyFsykEgpnHbvdZAUy/vyys8xgT0PVYR5hyvhyf6VIfGuvqIsvJw5 C8+P71CHI+U/IhsKrLrsiYHpAhQkw+Zvyeml6XSi5w4LXDbF+3oholKYCkPwxmGdK8MUIdkM d7iYdKqiP4W6FKQou/lC3jvOceGupEoDV9botSWEIIlKdtm6C4GfL45RD8V4B9iy24JHPlom woVWc0xBZboQguhauQqrBFooHO3roEeM1pxXjLUbDtH4t3SAI3gt4dpSyT3EvzhyNQVVIxj2 FXnIChrYxR6S0ijSqUKO0cAduenhBrpYbz9qFcB/GyxD+ZWY7OgQKHUZMWapx5bHGQ8bUZz2 SfjZwK+GETGhfkvNMf6zXbZkDq4kKB/ywaKvVPodS1Poa44+B9sxbUp1jMfFtlOJ3AYB0WDS Op3d7F2ry20CIf1Ifh0nIxkQPkTX7aX5rI92oZeu5u038dHUu/dO2EcuCjl1eDMGm5PLHDSP 0QUw5xzk1Y8MG1JQ56PtqReO33inBXG63yTIikJmUXFTw6lLJwARAQABtDNCb3JpcyBPc3Ry b3Zza3kgKFdvcmspIDxib3Jpcy5vc3Ryb3Zza3lAb3JhY2xlLmNvbT6JAjgEEwECACIFAlH8 CgsCGwMGCwkIBwMCBhUIAgkKCwQWAgMBAh4BAheAAAoJEIredpCGysGyasEP/j5xApopUf4g 9Fl3UxZuBx+oduuw3JHqgbGZ2siA3EA4bKwtKq8eT7ekpApn4c0HA8TWTDtgZtLSV5IdH+9z JimBDrhLkDI3Zsx2CafL4pMJvpUavhc5mEU8myp4dWCuIylHiWG65agvUeFZYK4P33fGqoaS VGx3tsQIAr7MsQxilMfRiTEoYH0WWthhE0YVQzV6kx4wj4yLGYPPBtFqnrapKKC8yFTpgjaK jImqWhU9CSUAXdNEs/oKVR1XlkDpMCFDl88vKAuJwugnixjbPFTVPyoC7+4Bm/FnL3iwlJVE qIGQRspt09r+datFzPqSbp5Fo/9m4JSvgtPp2X2+gIGgLPWp2ft1NXHHVWP19sPgEsEJXSr9 tskM8ScxEkqAUuDs6+x/ISX8wa5Pvmo65drN+JWA8EqKOHQG6LUsUdJolFM2i4Z0k40BnFU/ kjTARjrXW94LwokVy4x+ZYgImrnKWeKac6fMfMwH2aKpCQLlVxdO4qvJkv92SzZz4538az1T m+3ekJAimou89cXwXHCFb5WqJcyjDfdQF857vTn1z4qu7udYCuuV/4xDEhslUq1+GcNDjAhB nNYPzD+SvhWEsrjuXv+fDONdJtmLUpKs4Jtak3smGGhZsqpcNv8nQzUGDQZjuCSmDqW8vn2o hWwveNeRTkxh+2x1Qb3GT46uuQINBFH8CgsBEADGC/yx5ctcLQlB9hbq7KNqCDyZNoYu1HAB Hal3MuxPfoGKObEktawQPQaSTB5vNlDxKihezLnlT/PKjcXC2R1OjSDinlu5XNGc6mnky03q yymUPyiMtWhBBftezTRxWRslPaFWlg/h/Y1iDuOcklhpr7K1h1jRPCrf1yIoxbIpDbffnuyz kuto4AahRvBU4Js4sU7f/btU+h+e0AcLVzIhTVPIz7PM+Gk2LNzZ3/on4dnEc/qd+ZZFlOQ4 KDN/hPqlwA/YJsKzAPX51L6Vv344pqTm6Z0f9M7YALB/11FO2nBB7zw7HAUYqJeHutCwxm7i BDNt0g9fhviNcJzagqJ1R7aPjtjBoYvKkbwNu5sWDpQ4idnsnck4YT6ctzN4I+6lfkU8zMzC gM2R4qqUXmxFIS4Bee+gnJi0Pc3KcBYBZsDK44FtM//5Cp9DrxRQOh19kNHBlxkmEb8kL/pw XIDcEq8MXzPBbxwHKJ3QRWRe5jPNpf8HCjnZz0XyJV0/4M1JvOua7IZftOttQ6KnM4m6WNIZ 2ydg7dBhDa6iv1oKdL7wdp/rCulVWn8R7+3cRK95SnWiJ0qKDlMbIN8oGMhHdin8cSRYdmHK kTnvSGJNlkis5a+048o0C6jI3LozQYD/W9wq7MvgChgVQw1iEOB4u/3FXDEGulRVko6xCBU4 SQARAQABiQIfBBgBAgAJBQJR/AoLAhsMAAoJEIredpCGysGyfvMQAIywR6jTqix6/fL0Ip8G jpt3uk//QNxGJE3ZkUNLX6N786vnEJvc1beCu6EwqD1ezG9fJKMl7F3SEgpYaiKEcHfoKGdh 30B3Hsq44vOoxR6zxw2B/giADjhmWTP5tWQ9548N4VhIZMYQMQCkdqaueSL+8asp8tBNP+TJ PAIIANYvJaD8xA7sYUXGTzOXDh2THWSvmEWWmzok8er/u6ZKdS1YmZkUy8cfzrll/9hiGCTj u3qcaOM6i/m4hqtvsI1cOORMVwjJF4+IkC5ZBoeRs/xW5zIBdSUoC8L+OCyj5JETWTt40+lu qoqAF/AEGsNZTrwHJYu9rbHH260C0KYCNqmxDdcROUqIzJdzDKOrDmebkEVnxVeLJBIhYZUd t3Iq9hdjpU50TA6sQ3mZxzBdfRgg+vaj2DsJqI5Xla9QGKD+xNT6v14cZuIMZzO7w0DoojM4 ByrabFsOQxGvE0w9Dch2BDSI2Xyk1zjPKxG1VNBQVx3flH37QDWpL2zlJikW29Ws86PHdthh Fm5PY8YtX576DchSP6qJC57/eAAe/9ztZdVAdesQwGb9hZHJc75B+VNm4xrh/PJO6c1THqdQ 19WVJ+7rDx3PhVncGlbAOiiiE3NOFPJ1OQYxPKtpBUukAlOTnkKE6QcA4zckFepUkfmBV1wM Jg6OxFYd01z+a+oL Message-ID: <28df13ad-da86-e0bf-c70a-496c54e55b7c@oracle.com> Date: Fri, 25 Oct 2019 09:48:56 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <20191025073858.15081-1-jgross@suse.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9420 signatures=668684 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910250133 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9420 signatures=668684 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1908290000 definitions=main-1910250133 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/25/19 3:38 AM, Juergen Gross wrote: > Support for the kernel as Xen 32-bit PV guest will soon be removed. > Issue a warning when booted as such. > > Signed-off-by: Juergen Gross Reviewed-by: Boris Ostrovsky > --- > arch/x86/xen/enlighten_pv.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c > index 58f79ab32358..5bfea374a160 100644 > --- a/arch/x86/xen/enlighten_pv.c > +++ b/arch/x86/xen/enlighten_pv.c > @@ -117,6 +117,14 @@ static void __init xen_banner(void) > printk(KERN_INFO "Xen version: %d.%d%s%s\n", > version >> 16, version & 0xffff, extra.extraversion, > 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 > } > > static void __init xen_pv_init_platform(void)