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=-7.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=ham 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 722EAC433DF for ; Thu, 4 Jun 2020 15:01:31 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 40EF9207D8 for ; Thu, 4 Jun 2020 15:01:31 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="kf9v18qe"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="VAkcxlod" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 40EF9207D8 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=pVvBq6LQCqC10C7X0LuMF2iQMTCqWBqOi/Sbbf8RkHY=; b=kf9v18qeogZ3S0 5J+jD/y9usZZlgOMBQFGPUbqxuB3vzDzZuzMSth4rJk/p4Yxl1f/8Jpu27nM40BMhe5mi3j9ZeIg/ 7/BXXaKlPCPGBN4VLXO8PnGJ9Fn3GlXRG7OJB0kcajYx0AiF0nmJKimuevkKIy5KaVnnCE2Sg0MQ6 tdMbl2Z6Kb4YF2Dp1SxrePJOaNhW5O4W5lgvSTx3djsW3NbZ+8AqCzEDBTRZr6zv2+BitOzf1QLni fyRIyz23FD/8taLKqxrA320bwWzqLQm6yXOlg2w7F+6qVbip+A6HjLpSSi++IVAbMdQCq9skZzIxA sjpKyVWrIzrEGEUXz0gw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jgrN4-0004Xj-VA; Thu, 04 Jun 2020 15:01:30 +0000 Received: from mail.kernel.org ([198.145.29.99]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1jgrN2-0004Ws-Ln for linux-arm-kernel@lists.infradead.org; Thu, 04 Jun 2020 15:01:30 +0000 Received: from willie-the-truck (236.31.169.217.in-addr.arpa [217.169.31.236]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 08A37207D8; Thu, 4 Jun 2020 15:01:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1591282888; bh=JskUzilwdGajPNgtR3T9CuqT66ma41UzbaDrRz2jlJM=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=VAkcxlodg6uYtYGE0N0ImJcZG16BuNQvLsb+q1ioUHFM94BXMor4MzaZYu2jHyehc ybQfvqA2TnedLG2j/XVN0HoEPJOGReh0UHO3UI1fJdW+WagpMjA4N/9EBQLSPhr6Ng DY/rSuvfK8egnMCVWQsyfErW95lCpUMqzyjmnjgQ= Date: Thu, 4 Jun 2020 16:01:23 +0100 From: Will Deacon To: Marc Zyngier Subject: Re: [PATCH] arm64: set TEXT_OFFSET to 0x0 in preparation for removing it entirely Message-ID: <20200604150122.GA3650@willie-the-truck> References: <20200415082922.32709-1-ardb@kernel.org> <158808120907.217905.4632288691847383619.b4-ty@kernel.org> <20200604154141.4983aeaa@why> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200604154141.4983aeaa@why> User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200604_080128_732038_14BA6108 X-CRM114-Status: GOOD ( 17.22 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, suzuki.poulose@arm.com, catalin.marinas@arm.com, james.morse@arm.com, Ard Biesheuvel , linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Thu, Jun 04, 2020 at 03:41:41PM +0100, Marc Zyngier wrote: > Hi all, > > On Tue, 28 Apr 2020 15:49:35 +0100 > Will Deacon wrote: > > > On Wed, 15 Apr 2020 10:29:22 +0200, Ard Biesheuvel wrote: > > > TEXT_OFFSET on arm64 is a historical artifact from the early days of > > > the arm64 port where the boot protocol was basically 'copy this image > > > to the base of memory + 512k', giving us 512 KB of guaranteed BSS space > > > to put the swapper page tables. When the arm64 port was merged for > > > v3.10, the Image header already carried the actual value of TEXT_OFFSET, > > > to allow the bootloader to discover it dynamically rather than hardcode > > > it to 512 KB. > > > > > > [...] > > > > Applied to arm64 (for-next/misc), thanks! > > > > [1/1] arm64: set TEXT_OFFSET to 0x0 in preparation for removing it entirely > > https://git.kernel.org/arm64/c/cfa7ede20f13 > > This breaks a guest kernel booted with kvmtool (tested on my d05). > Reverting it on top of 6929f71e46bd makes it work again. I haven't yet > investigated what is happening here though. Weird, that's a combination I test, just not on d05. Are you using defconfig? Can you share your full kvmtool invication please? Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel