Received: by 2002:a25:868d:0:0:0:0:0 with SMTP id z13csp243166ybk; Thu, 14 May 2020 22:47:47 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxQFVfWdMiee9OnpFv3x1294XjIuilHMinJJnRHpxAj0I6Q+JuUK+/7dx824fu25MiudJaz X-Received: by 2002:a50:c014:: with SMTP id r20mr1208843edb.110.1589521667123; Thu, 14 May 2020 22:47:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1589521667; cv=none; d=google.com; s=arc-20160816; b=shZaZgNetc3BzZH3oEHxhrR1a4gScIomHcJBCW0w8OUXa034Q1bvMCnrCE6YLWB7jS 1qermXkEmerGSlcQz7RNYG6C3mcmH/2s4+eJT7luWW/t+/t5kU1apXFwGdx/xKXoRaWF AtRodvb1ONu8F00eW1RR9xHaYu1NAev1VHogQIXAFmPuzT3rCD3h80Uf5UJoKbRwAUKx yg3LMoA+xHnvPJuWAICMjD6NpqmDi1EeIde6b926H1Or/HisqxhdoMrE1UxWOvguq2d+ x0SPFOU0yaWs4c5gJ1SJS7soA/UbVjJGdTPmZlye4qtH5Gl2XYmXaFoyGG0pCcXAn9GW X3Fw== 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=4yoZkHRP1mfOvMii+ISe7gk7u5BRG4pi12L7OFjRHHw=; b=AWqDnmxEOousz/SSTHs+vMbVtzu/mQCCOb/Iqg9WJb+KaW9+cK0Ok3s/GkSbQBPSQv M10QK+wuUGImCjLIsGw19K7hkN95ShXacZB04Z9wgqt9cjhyAsCTdBuEcZfM0ECqyB3n nPuXct3vI5t+uj3LafLrKwyI96osVj5qGfTc8WHqzyb4v8RvILkzTCJVc8nd1fOCpodV BfgbMbybQ2MUVl/rEcCzu0ES74SggvxkMIn0JynvDcjZGXY8o3KLvnnDXNTMZClJEaUq m6CCmzFECOH9Zz9w5DMQegfjoqXQRwnI8RrxXx4CMtDPunMAecIPGCiRxxbOb4ixyAUr iG+g== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=default header.b="fY7/LdrF"; 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 ce21si653912edb.297.2020.05.14.22.47.23; Thu, 14 May 2020 22:47:47 -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="fY7/LdrF"; 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 S1726639AbgEOFnB (ORCPT + 99 others); Fri, 15 May 2020 01:43:01 -0400 Received: from mail.kernel.org ([198.145.29.99]:47614 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726269AbgEOFnA (ORCPT ); Fri, 15 May 2020 01:43:00 -0400 Received: from mail-wm1-f49.google.com (mail-wm1-f49.google.com [209.85.128.49]) (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 E7AA320671 for ; Fri, 15 May 2020 05:42:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589521380; bh=znbHUnsThBKBrYTWI95KP2LVtdrW14mFKp69v3/IN4Q=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=fY7/LdrFLVzJ1RFLRwHkd21rxTIdjwkGzur7R0tbKy2wFQiXgjvs1eoNU093yzjv/ 0L1zwZBaUkWqpLqgcDOON20Vb3OtbHSydtgAgDWwiLrGvs5ajfTyovhd3ob9m/DEhv saGi2fcM7Yama4Bso7k0MC1slJxlHm+qHSPCvBwY= Received: by mail-wm1-f49.google.com with SMTP id f134so969546wmf.1 for ; Thu, 14 May 2020 22:42:59 -0700 (PDT) X-Gm-Message-State: AOAM533DxLfxi7lwDUsq3laS8J3FsMcbxPIV0d7WOCZDM5jn9NM3xTNk KLzQGaP6LcYkTs5uhZDU/t+pitbRGdqVXwplwZ6J3w== X-Received: by 2002:a1c:9989:: with SMTP id b131mr2005852wme.176.1589521378526; Thu, 14 May 2020 22:42:58 -0700 (PDT) MIME-Version: 1.0 References: <20200505134926.578885807@linutronix.de> <20200505135315.686797857@linutronix.de> In-Reply-To: <20200505135315.686797857@linutronix.de> From: Andy Lutomirski Date: Thu, 14 May 2020 22:42:47 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [patch V4 part 4 24/24] x86/entry: Convert double fault exception to IDTENTRY_DF To: Thomas Gleixner Cc: LKML , X86 ML , "Paul E. McKenney" , Andy Lutomirski , Alexandre Chartre , Frederic Weisbecker , Paolo Bonzini , Sean Christopherson , Masami Hiramatsu , Petr Mladek , Steven Rostedt , Joel Fernandes , Boris Ostrovsky , Juergen Gross , Brian Gerst , Mathieu Desnoyers , Josh Poimboeuf , Will Deacon 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, May 5, 2020 at 7:16 AM Thomas Gleixner wrote: > > Convert #DF to IDTENTRY_DF > - Implement the C entry point with DEFINE_IDTENTRY_DF > - Emit the ASM stub with DECLARE_IDTENTRY_DF on 64bit > - Remove the ASM idtentry in 64bit > - Adjust the 32bit shim code > - Fixup the XEN/PV code > - Remove the old prototyoes > > No functional change. > Acked-by: Andy Lutomirski