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=-8.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 06655C55179 for ; Wed, 28 Oct 2020 14:13:03 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (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 863862475E for ; Wed, 28 Oct 2020 14:13:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="SmothEMe"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="hoPL5ZFX" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 863862475E 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+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=merlin.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=SFKvbSc9wdTuX79AmmwaHnvsnljm98VZjqiP4mvaVZI=; b=SmothEMeayGqNr8jNdGS4bFla //oCHBdkhOv9NSfl4GYxSbTgsSj3w+Gb7GvN+H4Nj9x4dkol2Rcsx9X10ETlLmgNKFbfz8PLU5GEP cYdIxY9rpbN2C+01Aq+Ffv1l+AfVArMJAVnzOCrJLwKCBBfTyxZySfHfwLgl7Of6AKHNpMNGYQ2ue uAFUBhk5ZTHAl9D93/VHbWe3SjqKOl5JiH3KVUJJyYH3b/uOutvGCPcSBIRImRpW0so2F+5FU+1n4 ZHy3HSx8t8CASIcw33czAtd4EYsWiay0exshD+3xLdpLTC31fgvWtEmuc63E6Nl5Np/Mv3OBfWIKd z0D61BLNQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kXmBk-0000xh-Ha; Wed, 28 Oct 2020 14:12:32 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kXmBh-0000wR-3e for linux-arm-kernel@lists.infradead.org; Wed, 28 Oct 2020 14:12:29 +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 1CFAC2473A; Wed, 28 Oct 2020 14:12:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1603894348; bh=s/ifGva8UkHFNVwrJ9hn7eWkWpbrk06RtbUAJFwjF2g=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=hoPL5ZFX83xxSTFk/2VVEFiLrrsYnQanOfDCgSrY6yKGV03JivcAWFYb8QojY9CG+ HPsjyLe95i0RG/0HlvqUZ3lvN9Juayjk9EHBLBlMdER3GaCYsVBVBSVt53r1sgVUAH 0Y25HQpQvdX31UKyJaLayuw+M1ROMpvH/VbPdfYU= Date: Wed, 28 Oct 2020 14:12:23 +0000 From: Will Deacon To: Ard Biesheuvel Subject: Re: [PATCH 3/4] arm64/head: avoid symbol names pointing into first 64 KB of kernel image Message-ID: <20201028141223.GD28554@willie-the-truck> References: <20201027073209.2897-1-ardb@kernel.org> <20201027073209.2897-4-ardb@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201027073209.2897-4-ardb@kernel.org> 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-20201028_101229_259315_B7E4B1F0 X-CRM114-Status: GOOD ( 16.22 ) 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, catalin.marinas@arm.com, james.morse@arm.com, 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+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Oct 27, 2020 at 08:32:08AM +0100, Ard Biesheuvel wrote: > We no longer map the first 64 KB of the kernel image, as there is nothing > there that we ever need to refer back to once the kernel has booted. Even > though facilities like kallsyms are very careful to only refer to the > region that starts at _stext when mapping virtual addresses to symbol > names, let's avoid any confusion by switching to local .L prefixed symbol > names for the EFI header, as none of them have any significance to the > rest of the kernel. > > Signed-off-by: Ard Biesheuvel > --- > arch/arm64/kernel/efi-header.S | 46 ++++++++++---------- > 1 file changed, 22 insertions(+), 24 deletions(-) Acked-by: Will Deacon Will _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel