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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A928C4332F for ; Fri, 4 Nov 2022 15:04:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232168AbiKDPEY (ORCPT ); Fri, 4 Nov 2022 11:04:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49512 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232146AbiKDPET (ORCPT ); Fri, 4 Nov 2022 11:04:19 -0400 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0AFA265CB for ; Fri, 4 Nov 2022 08:04:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1667574259; x=1699110259; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=Jw3Y9otHji7QTX5CGBkw7V4WGp0ZcL6hQNZS7M1jLPk=; b=dJ3hudH0eL4qPjdZ4uEnx5DdAaK3Iogbz63Fbhzn0nhDjwEP9UrN+pXd f8+xVOMFYmRukaQDAb/Sc/SYd6bETZBVh4HLJz+P4jGp6mVv+A2gdp508 31lcYg8rkta890wYXKjV+5i2CyFjVjLIaB6gjc+r02YJd6Yujci61NLKW nRbbkur5KLK7QL00e9us9NYx9PJAV/UqkFHX88FXri7Rxhgrk8R2HgUKW FVXHRcdW4vaJ0qc9/QXWN5qncrzy94B8biUPgWDBMfEDkwikqBEMOvkGX 7NJJS9UBxSuK1u8qIBkFfsPcffIrCgGXuCjJqonWBJHaT+KuWi5prE4Iz A==; X-IronPort-AV: E=McAfee;i="6500,9779,10521"; a="374224164" X-IronPort-AV: E=Sophos;i="5.96,137,1665471600"; d="scan'208";a="374224164" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Nov 2022 08:04:18 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10521"; a="698672785" X-IronPort-AV: E=Sophos;i="5.96,137,1665471600"; d="scan'208";a="698672785" Received: from anantsin-mobl2.amr.corp.intel.com (HELO [10.209.97.57]) ([10.209.97.57]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Nov 2022 08:04:16 -0700 Message-ID: <8b5e9d9d-b55b-7af0-7ea7-f7130f6a1886@intel.com> Date: Fri, 4 Nov 2022 08:04:15 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.2 Subject: Re: [PATCH v2 3/5] x86: drop 32-bit Xen PV guest code in update_task_stack() Content-Language: en-US To: Juergen Gross , linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , "H. Peter Anvin" References: <20221104072701.20283-1-jgross@suse.com> <20221104072701.20283-4-jgross@suse.com> From: Dave Hansen In-Reply-To: <20221104072701.20283-4-jgross@suse.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/4/22 00:26, Juergen Gross wrote: > Testing for Xen PV guest mode in a 32-bit only code section can be > dropped, as Xen PV guests are supported in 64-bit mode only. > > While at it switch from boot_cpu_has() to cpu_feature_enabled() in the > 64-bit part of the code. Acked-by: Dave Hansen