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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable 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 50156FA372C for ; Fri, 8 Nov 2019 18:55:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1AB062178F for ; Fri, 8 Nov 2019 18:55:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573239350; bh=OUxU/eQZ6HEuqMpH2FbTVFsxnOXLUuvEPUkI2xixscQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=HVW2pwOZ0zG/PEkRQxfDMV2VDgvqsNAXLuKwrkT7LOqf95nB/gBi8jF32QnZNgWyK pGXbe8DtzOAjZFkZ85jqf1Ly/Dzvms5XAQJMSBhERJnVEJlZVjMxPPPXlAeIOzw5lj rf/yApL27911irUY6kQ1v98UejXM8P5i+F/Fa6F4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387543AbfKHSzl (ORCPT ); Fri, 8 Nov 2019 13:55:41 -0500 Received: from mail.kernel.org ([198.145.29.99]:53076 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387707AbfKHSzk (ORCPT ); Fri, 8 Nov 2019 13:55:40 -0500 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (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 AAEF82178F; Fri, 8 Nov 2019 18:55:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1573239339; bh=OUxU/eQZ6HEuqMpH2FbTVFsxnOXLUuvEPUkI2xixscQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=qDMisU73ddlhpssefBRHB/CiIfkeATLb1uoPQ0pwhYOLi9nT2F+q1KidWunJTl1E9 K+hPjKc0PlFRSCwowKAtC6/aUgxCA/i5eTrav+xUbP1QSO0juYo56aEEj9ruK0oUvN wvTDMC/KNH67NO+9YvzJWjqgt2Xid2ysP41pj9Lw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Greg Kroah-Hartman , "linus.walleij@linaro.org, rmk+kernel@armlinux.org.uk, Ard Biesheuvel" , Russell King , Florian Fainelli , Tony Lindgren , Marc Zyngier , "David A. Long" , Ard Biesheuvel Subject: [PATCH 4.4 44/75] ARM: spectre: add Kconfig symbol for CPUs vulnerable to Spectre Date: Fri, 8 Nov 2019 19:50:01 +0100 Message-Id: <20191108174750.253744224@linuxfoundation.org> X-Mailer: git-send-email 2.24.0 In-Reply-To: <20191108174708.135680837@linuxfoundation.org> References: <20191108174708.135680837@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.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 Signed-off-by: Greg Kroah-Hartman --- arch/arm/mm/Kconfig | 4 ++++ 1 file changed, 4 insertions(+) --- 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