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=-4.1 required=3.0 tests=BAYES_00,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 1AE2BC433E0 for ; Mon, 27 Jul 2020 22:39:17 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E6508206D7 for ; Mon, 27 Jul 2020 22:39:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595889556; bh=bzXfGesZwJ27ZcLacwSBj5UkSbxcuX0b9ThtTjRUEI4=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=tN00cf8A9jrGrUXXTqjB4LQSJvo9O26yjk/VPNZHzUfjKNcoZVySW5c07UVLEMIXZ RVYkEAjITGWtNRrUjGXKl0kNgBURaYiMJY5011zRERrNrrnoiN0BWlFRfFXm4zRpxR Jgs2QYBfo9DhL6LqwSzOXvC2bjVH49dTmxH0sURY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727095AbgG0WjP (ORCPT ); Mon, 27 Jul 2020 18:39:15 -0400 Received: from mail.kernel.org ([198.145.29.99]:45122 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726194AbgG0WjO (ORCPT ); Mon, 27 Jul 2020 18:39:14 -0400 Received: from mail-wr1-f47.google.com (mail-wr1-f47.google.com [209.85.221.47]) (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 3C97620809 for ; Mon, 27 Jul 2020 22:39:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1595889554; bh=bzXfGesZwJ27ZcLacwSBj5UkSbxcuX0b9ThtTjRUEI4=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=xUuRMzrbJ8wox2VW8LIkRPZk4GtPqAvVTkvWtiAvz4piaTOsAm8z8+4DugVe6xx/2 c8FnB7kCZ743heGfoNbbs2IKwcVQD63u9Z6nebTEwiJssc5NaQ0N3P9j8Y9l7jsTqT ofj0+oNXxEU8zryy2k3HQtKEGSi/sWuA0xR8BYto= Received: by mail-wr1-f47.google.com with SMTP id r2so11305007wrs.8 for ; Mon, 27 Jul 2020 15:39:14 -0700 (PDT) X-Gm-Message-State: AOAM533C/dng7gsw5bqhlWUMqZakheoBSZQk1oZYKHQnG0BqI9KEbK4p Zb9AAOsqTJmJPBcUT6XqNEgxrV6+29z3hhKSgRJUyA== X-Google-Smtp-Source: ABdhPJy5xPtMUiSD1L18V/iohOqyp64MNQhn1uI3cIQMJk2KsNpAI3O4sAgBbYR7hD7T/x+IDlThjWpszcuWoh4VpbY= X-Received: by 2002:a5d:65d2:: with SMTP id e18mr21694913wrw.70.1595889552892; Mon, 27 Jul 2020 15:39:12 -0700 (PDT) MIME-Version: 1.0 References: <20200721105706.030914876@linutronix.de> <20200721110808.671110583@linutronix.de> In-Reply-To: <20200721110808.671110583@linutronix.de> From: Andy Lutomirski Date: Mon, 27 Jul 2020 15:39:01 -0700 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [patch V4 04/15] entry: Provide generic interrupt entry/exit code To: Thomas Gleixner Cc: LKML , X86 ML , linux-arch , Will Deacon , Arnd Bergmann , Mark Rutland , Kees Cook , Keno Fischer , Paolo Bonzini , kvm list , Gabriel Krisman Bertazi 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 21, 2020 at 4:08 AM Thomas Gleixner wrote: > > From: Thomas Gleixner > > Like the syscall entry/exit code interrupt/exception entry after the real > low level ASM bits should not be different accross architectures. > > Provide a generic version based on the x86 code. I don't like the name. Sure, idtentry is ugly and x86-specific, but irq gives the wrong impression. This is an entry path suitable for any entry that is guaranteed not to hit during entry/exit handling. Syscalls, page faults, etc are not "irqs".