From patchwork Tue Nov 5 20:58:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ard Biesheuvel X-Patchwork-Id: 11228579 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A5F3713BD for ; Tue, 5 Nov 2019 21:05:37 +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 8B4F92087E for ; Tue, 5 Nov 2019 21:05:37 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="ETPoRO8y"; dkim=fail reason="signature verification failed" (1024-bit key) header.d=kernel.org header.i=@kernel.org header.b="B8Hw/QXl" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8B4F92087E 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+patchwork-linux-arm=patchwork.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:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=4oodytOA9zBxiXju8ukahdb76rq7SvZ2RvHVmZFDuI8=; b=ETPoRO8yVM1ZvefHJsitZC+anb VMCAkqzIbtDJzac5UdtASoXnwXi6phPZT4clO9fyJF0nNT6QeEbZK1eNMygG1Wp86dIqjuAolQWqc Mq43+hYPTcBen9qbgpnwcKRJKQUbM/x0FAjwI7tvq2D0O8JoZgRUS8j+mcs2GVHHFzdIqbjxFCAn1 guqiT1b3qUnzEEBRqEOUuvvi6XNwRzhhhL8y/5OxeVvefLyWtVg8bBB2BUZLO7nvzIwhA8YqsB4oW mbvoIUvUYBvvkHwAn6cspfQKOLjrHuxf3ZMJjbHq19/FDESyKdZGltXH0eyAEIf3ywrgSN/Vu45qq eZpB2jnQ==; 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 1iS618-0005PB-So; Tue, 05 Nov 2019 21:05:34 +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 1iS5vs-0006cZ-5S for linux-arm-kernel@lists.infradead.org; Tue, 05 Nov 2019 21:00:10 +0000 Received: from e123331-lin.home (lfbn-mar-1-643-104.w90-118.abo.wanadoo.fr [90.118.215.104]) (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 33E0E21A49; Tue, 5 Nov 2019 21:00:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572987607; bh=fhAP4G/1H97l2QGMhYX0kvn0VP89Hp68X9bJIYc33/k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=B8Hw/QXlrb1cgafgXibwCwqebjwimSG4OX6tgC2M1rWqEBAWUtuFW81/AcgHEL05d 10xJ7I6JhYDaGoL2sfVb162nEsupAQMhcDQRRIhExhbydVyuCq2s2RznC8Yjl41AKw e7qXQAf8MD+dWcaTZeb08YzGWQ+XmM4qutHa2fOg= From: Ard Biesheuvel To: linux-arm-kernel@lists.infradead.org Subject: [PATCH for-stable-v4.4 24/53] ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre Date: Tue, 5 Nov 2019 21:58:17 +0100 Message-Id: <20191105205846.1394-25-ardb@kernel.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20191105205846.1394-1-ardb@kernel.org> References: <20191105205846.1394-1-ardb@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191105_130008_275095_60258197 X-CRM114-Status: GOOD ( 10.09 ) X-Spam-Score: -5.2 (-----) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (-5.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at https://www.dnswl.org/, high trust [198.145.29.99 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.0 DKIMWL_WL_HIGH DKIMwl.org - Whitelisted High sender 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 , Florian Fainelli , Greg Kroah-Hartman , Tony Lindgren , Catalin Marinas , Russell King , "David A . Long" , Marc Zyngier , Will Deacon , Ard Biesheuvel MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Russell King Commit c58d237d0852a57fde9bc2c310972e8f4e3d155d upstream. Add a Kconfig symbol for CPUs which are vulnerable to the Spectre attacks. Signed-off-by: Russell King Reviewed-by: Florian Fainelli Boot-tested-by: Tony Lindgren Reviewed-by: Tony Lindgren Acked-by: Marc Zyngier Signed-off-by: David A. Long Signed-off-by: Greg Kroah-Hartman Signed-off-by: Ard Biesheuvel --- arch/arm/mm/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 41218867a9a6..7ef92e6692ab 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -396,6 +396,7 @@ config CPU_V7 select CPU_CP15_MPU if !MMU select CPU_HAS_ASID if MMU select CPU_PABRT_V7 + select CPU_SPECTRE if MMU select CPU_TLB_V7 if MMU # ARMv7M @@ -793,6 +794,9 @@ config CPU_BPREDICT_DISABLE help Say Y here to disable branch prediction. If unsure, say N. +config CPU_SPECTRE + bool + config TLS_REG_EMUL bool select NEED_KUSER_HELPERS