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=-2.5 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 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 DEFBFC83000 for ; Tue, 28 Apr 2020 13:41:29 +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 B28E7206D6 for ; Tue, 28 Apr 2020 13:41:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="qYycXRQh"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="HCn/T2L6" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B28E7206D6 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=RQtuwXQH4YdU6W8hCwOzIXK9d117t5LSv2ZT1wY0cI0=; b=qYycXRQhkvQSC/ oJuIP5xUpk05kJRFNhPZwgBMwBaF1TC88UQ5T3SxrJCwStmKsqggnY2sE1/PuTeieqpW1d2iuQZ2t Wi+w0Y4lJe/MoPuVzXd1O5PDR+U6Yls8EsyNS5sEXalY/VqqttdAnupVaOUePytiag1/b9F8XvWZT DYC8z2XPb6YsjnwevEtmu0JR5y9sIciPcRfOXzuU3X9erPYX+xgzPdq6eEqHWnJ1IYYTsvaLzujuI u25ZnR7Qt7iA9vgmwOkqp8F5dtLnCFalxifhP0SQUMeQj0VMQaWxIfvAlp+O103KWU4DkIkNk1K89 xVqFvdkQAGJ8CFEg9SdQ==; 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 1jTQUK-0007oq-Ev; Tue, 28 Apr 2020 13:41:28 +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 1jTQUH-0007oN-5Q for linux-arm-kernel@lists.infradead.org; Tue, 28 Apr 2020 13:41:26 +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 AFB85206D6; Tue, 28 Apr 2020 13:41:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1588081284; bh=32XblPO5eWtVQsa5Z1EdHpcI+szWzWP9tJmego4SeIU=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=HCn/T2L6kaGp5DFj+3z9NI7YbGvJhFhBqs9O5oi6IgW3nPKtSClBZOY+/uvqHcKDs Bs751IUB4B8N7WZE0sctYvX3D25RPKQsDkb+SHMk5W2gR0zmfkXI9QuquGE2FdOl7O egH1woT0GREwSQXHaQ3nKE6T9CkI/91rszZLICcM= Date: Tue, 28 Apr 2020 14:41:20 +0100 From: Will Deacon To: Ard Biesheuvel Subject: Re: [PATCH] arm64: set TEXT_OFFSET to 0x0 in preparation for removing it entirely Message-ID: <20200428134119.GI6791@willie-the-truck> References: <20200415082922.32709-1-ardb@kernel.org> <20200415083900.GA12621@willie-the-truck> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: 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-20200428_064125_232648_B8269899 X-CRM114-Status: GOOD ( 14.77 ) 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 , Catalin Marinas , james.morse@arm.com, Linux ARM , suzuki.poulose@arm.com 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 Wed, Apr 15, 2020 at 10:48:55AM +0200, Ard Biesheuvel wrote: > On Wed, 15 Apr 2020 at 10:39, Will Deacon wrote: > > > > On Wed, Apr 15, 2020 at 10:29:22AM +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. > > > > Hey, we're older than that! (3.7) > > > > Ah right. But the header field was added in v3.10 - I'll fix that in > v2. All way before my time anyway :-) Looks like that's the only change needed, so I'll just make it when I apply. Thanks, Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel