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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 08164C433DF for ; Fri, 15 May 2020 05:32:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D2E8C20728 for ; Fri, 15 May 2020 05:32:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589520734; bh=9ypySO/wfBsX/2+03gtlMMGtTrR7hk38bvnUTsm3VgQ=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=DDleGWJDYz0wY8SCP3aLa2Klgc9cPyK2OocNonDOdmkDiPZFn58cF9DiZNGJJqNJ7 /HQXROShSj82sXSgSYJmR/+w2/bLo31anDPWNdzHMsOLr0kQxYIWhCriGK1IxYy1GH 7rofmI8Z9FQ8BgdQNMR4DWh4d1lV4F30tDV6aNgU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726263AbgEOFcO (ORCPT ); Fri, 15 May 2020 01:32:14 -0400 Received: from mail.kernel.org ([198.145.29.99]:40728 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725899AbgEOFcN (ORCPT ); Fri, 15 May 2020 01:32:13 -0400 Received: from mail-wr1-f48.google.com (mail-wr1-f48.google.com [209.85.221.48]) (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 E7156206F1 for ; Fri, 15 May 2020 05:32:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1589520733; bh=9ypySO/wfBsX/2+03gtlMMGtTrR7hk38bvnUTsm3VgQ=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=Xcy9nyiRYQ/A/KbACz18zguBJI5aRVq6AF0RKCVhD4aDh+z6zGEisj6Yx8WFAocVE AdNFo/RDv++K2zLQJoTn5dyd0Z8LmwfPa4WJF1TUyQSm7wj8TqtJARokkOI18KyCWL l6JIGd1DnJ2cfsutuiDlfxB4Ej6KgRegTLfrsOQY= Received: by mail-wr1-f48.google.com with SMTP id j5so1977850wrq.2 for ; Thu, 14 May 2020 22:32:12 -0700 (PDT) X-Gm-Message-State: AOAM532zgjZz2MtdiMhX29e16E61zOlhzos7VMqqbzkNCO4jA8YK+RC1 nYp6i5Tu7ru9ff+UOg4pH/fKfDLCwUZdH2JGjS40Og== X-Google-Smtp-Source: ABdhPJx4CdYlG/hbGxfBgqBISITMskKXUT29fS7b3bMHSyVcREt5rZS+FKalyYYfkBKDpfKU1VF8/7gxucyz/p30K5Q= X-Received: by 2002:adf:a389:: with SMTP id l9mr2249353wrb.18.1589520731474; Thu, 14 May 2020 22:32:11 -0700 (PDT) MIME-Version: 1.0 References: <20200505134926.578885807@linutronix.de> <20200505135315.177564104@linutronix.de> In-Reply-To: <20200505135315.177564104@linutronix.de> From: Andy Lutomirski Date: Thu, 14 May 2020 22:32:00 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [patch V4 part 4 19/24] x86/entry: Implement user mode C entry points for #DB and #MCE 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: > > The MCE entry point uses the same mechanism as the IST entry point for > now. For #DB split the inner workings and just keep the ist_enter/exit > magic in the IST variant. Fixup the ASM code to emit the proper > noist_##cfunc call. > Acked-by: Andy Lutomirski