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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,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 77E89C28CBC for ; Wed, 6 May 2020 15:52:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 470EE20708 for ; Wed, 6 May 2020 15:52:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="0Tx7Jh+b" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729405AbgEFPw0 (ORCPT ); Wed, 6 May 2020 11:52:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34846 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729003AbgEFPw0 (ORCPT ); Wed, 6 May 2020 11:52:26 -0400 Received: from merlin.infradead.org (unknown [IPv6:2001:8b0:10b:1231::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C9748C061A0F for ; Wed, 6 May 2020 08:52:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=merlin.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=9Ofom/V/5JWGYf5Urppy3ErnpSNhHqm9qgBkF/mkejk=; b=0Tx7Jh+bulUD0eq5XJo4Y4mPn2 8GsEmjUE4CJ5Y1E8cmncn924gr8CedEhbQX4znZJCmHBk9nO1CDW06Mp7NCGtAmXgWf0F6eWwoLln eWa9BzQDboq0GmNxMv73LTc1/4wDSj2H9Ck4wCmuBDwTtUTeRBCDqd7U/5D3yv9hTsdgaxnxMXzW7 n5of1rp41i+LShr+HGWVrXIFsmvuW3aiScLLBUCJ4eIxsfeWdX7RNw84kthQYZQmjOCui96tobtWO FXHF43/QuJh+EKNca5lF7vV+L5VdoCyawGdCSnVHq+XlVnBlaeJjwDcXSdaiEE5fBH6JgAAu/du18 caIrG7jQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=noisy.programming.kicks-ass.net) by merlin.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1jWMKs-0005Hy-MP; Wed, 06 May 2020 15:51:50 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id 275FE30018B; Wed, 6 May 2020 17:51:49 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id F2F5D203ECDC2; Wed, 6 May 2020 17:51:48 +0200 (CEST) Date: Wed, 6 May 2020 17:51:48 +0200 From: Peter Zijlstra To: Thomas Gleixner Cc: LKML , x86@kernel.org, "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 Subject: Re: [patch V4 part 2 01/18] x86/entry/64: Move non entry code into .text section Message-ID: <20200506155148.GF5281@hirez.programming.kicks-ass.net> References: <20200505134112.272268764@linutronix.de> <20200505134340.227579223@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200505134340.227579223@linutronix.de> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, May 05, 2020 at 03:41:13PM +0200, Thomas Gleixner wrote: > All ASM code which is not part of the entry functionality can move out into > the .text section. No reason to keep it in the non-instrumentable entry > section. Just to note to self (or others), I'm planning to move all this into arch/x86/kernel/kernel.S (bike-shed away) sometime after all this lands. These things simply do not belong in entry.S at all.