Received: by 2002:a25:ca44:0:0:0:0:0 with SMTP id a65csp805737ybg; Tue, 28 Jul 2020 20:45:13 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzvtO/Q2RW72oetrMwpGOIO/Dne8eeQk/eg2fDTkZAMZx0vKHy0UMO1vrRz/MABLAq2/3D8 X-Received: by 2002:aa7:da46:: with SMTP id w6mr30178339eds.261.1595994312950; Tue, 28 Jul 2020 20:45:12 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1595994312; cv=none; d=google.com; s=arc-20160816; b=KNsxgUoCiKxEAkhC0w0SlEBDagpq/6KgZYz6WqmUHiiMMZ1jkaZQVKmSs27NwYDqSp lviWG+LqvktvxYdF5QSpcneOo5keJnVkK8xPJKVLwLBtrWXFlyqHkKn6JvoB/wnZ3Qi4 I4sVlg/cv8Mwor+LlX+AkjvrxyqIrnMCrAzH3Snd6Bdi6+iTajsIpvRSRxfLYchK3ytr A6zul1+6+DnvIuM9lUvKmVl6bq7X4wprpW6WfjK5T/fhTQmm8uw8KEwNcYD0FU4/AH60 2ilSUA2jg2IDmz2MxLYhzlV8O5zDccWw0DqqPEq9+j/Qr+BnF6efuNf2hNC5zhUQn8V7 jnxQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:cc:to:subject:message-id:date:from :in-reply-to:references:mime-version:dkim-signature; bh=I3S/cFT+Gt6rSHxJ5H0z3OQqV86z18CmG9ZMuN62ngQ=; b=pQHBff9Qx2PNsarL/tY8Br67WKkzxFbDAD9M56zcQFi/jmmGEXkXG/9o8Kg+CVUPuf g9jZuaJRwwauNkyc0qsFS8yWrgSkHUkg7aI6S+wO+2A5FzOzFriH0W5S2YBsFEGc65TU s7F6SpHwVrUXqjPS/JnGZyIljtZF1a7IfIkuYsyEat6jf/elUSDtuC00JPNZKYCSrMOh n4wd6Rx0DXwQIkXZ04inJ/K3PsIRL/+EVY4RVWdFu3Kaf8Xpbltf2+iNFu0o7zm4Yboi WiBkGJuHofV8qdaS7zBjCoMzu35WXjWoRBzSYvyOEBb1B1m6Txg0mTaB/d3eprepnb/K KAug== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=iqJN1cg8; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id va2si314930ejb.14.2020.07.28.20.44.50; Tue, 28 Jul 2020 20:45:12 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b=iqJN1cg8; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726757AbgG2Dog (ORCPT + 99 others); Tue, 28 Jul 2020 23:44:36 -0400 Received: from mail.kernel.org ([198.145.29.99]:57988 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726245AbgG2Dof (ORCPT ); Tue, 28 Jul 2020 23:44:35 -0400 Received: from mail-wr1-f50.google.com (mail-wr1-f50.google.com [209.85.221.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 6172E207F5 for ; Wed, 29 Jul 2020 03:44:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595994275; bh=PKYvCFT78LV/2YXEzkvGlUcCAL6ErGV+cm3sHxN8HLQ=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=iqJN1cg8NCB58hUnCfsBVkAky8B3owf813Vdl3hBZ/QxjpXfvsC2FgPjo/ynz7H2K +8/XdAwqJBAds2vrk6LdZ1MXN/HEHi49Xu70CsxphhPQLGnXVWikShaWEoPdxxtoo/ AVeHtnzdsAO88lEZ3go4h3VJPsLR1iL/NHrDp/kA= Received: by mail-wr1-f50.google.com with SMTP id z18so16633719wrm.12 for ; Tue, 28 Jul 2020 20:44:35 -0700 (PDT) X-Gm-Message-State: AOAM533DVkVXI1EYSLSerGJ16qc0VwSVfwfXtblCbefYBcgLfJc3/Exy Hof1sT/kVPm6x/YHzbLd+X5eW+C/JeoYLar5K13/lg== X-Received: by 2002:a5d:65d2:: with SMTP id e18mr27014993wrw.70.1595994273955; Tue, 28 Jul 2020 20:44:33 -0700 (PDT) MIME-Version: 1.0 References: <20200728202229.1195682-1-krisman@collabora.com> <20200728202229.1195682-5-krisman@collabora.com> In-Reply-To: <20200728202229.1195682-5-krisman@collabora.com> From: Andy Lutomirski Date: Tue, 28 Jul 2020 20:44:22 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH 4/6] arch: x86: Expose psABI on thread_info To: Gabriel Krisman Bertazi Cc: Andrew Lutomirski , Thomas Gleixner , Kees Cook , X86 ML , LKML , kernel@collabora.com Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jul 28, 2020 at 1:22 PM Gabriel Krisman Bertazi wrote: > > Expose psABI in thread_info, in preparation for the TIF_IA32 and > TIF_X32 flags removal. NAK. Linux threads don't have a user ABI like this. See my other comments :) --Andy