From patchwork Fri Oct 11 15:06:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Martin X-Patchwork-Id: 175973 Delivered-To: patch@linaro.org Received: by 2002:a92:7e96:0:0:0:0:0 with SMTP id q22csp881013ill; Fri, 11 Oct 2019 08:07:21 -0700 (PDT) X-Google-Smtp-Source: APXvYqwEtUgkn7BTgb64AVJXqiGvLZ6bSnPJrcVqxPFP600trnxBrzRpKN5QKLahrUkM+DY++AGF X-Received: by 2002:aa7:c6cf:: with SMTP id b15mr13927941eds.215.1570806441537; Fri, 11 Oct 2019 08:07:21 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1570806441; cv=none; d=google.com; s=arc-20160816; b=gR6OniQhWoqXUYQixShSF6fFwnCfi37Z9xTuWdtic6w8+fk27MhBHb7n5VyOo10nhU FInvMDTfEQ7PAzhGIQtnVV5w5ezfa2CQneLYIsK2aU4a7GKksLkwiPqcQmUFa2a58Sdl kVj6TvzHmSAnpJqLRZedHwfu0udyXt6d3pqRbx05785zghAQR6XSgPc1nQmIoz9Vjs4o 58esAG6XFWQrnqEFFkrweiItvERans4bdeZrAOTrXDQ5EP78MAJzAdaR7e83IMPxGToW EBM9jcPx5CED7Ujy0Qv8NLRGchI8SvVcPMFrXuXmRhLw/h1hYejkfsYkR4OnYsBENOL4 MeYA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from; bh=NzjyGLcod0cjpwfONcLBy5b4iypziMEPQwfp0XSSut4=; b=xYBn7SVJFEckxUIVxRNAB+dshVRba7JZa3bjRoisDcKKUsL8GaKN0QOTVLVHQaO8D5 if/gftX6l8TQU1eE0rHiptXj9okDuOBBEQIuWALRCn0gC+9ymlK5VgNCiU7HlGmfDWzR EJooXsokcJt38UEFyn8Ji8aFhubvfCkeV231ImdKydJGAZd+xImvZUpQx6mzMwH3U/LU ox1RxfbmrjCSA5fjkVWc+AAWCX83GY/1rMzDd2Ytap9KZCtoufIvrfw5pLmEI50CkMYU iTgtRByStyxU6DOYj2Apnj/hnYC4pP2fgaoNACvNEpB3sG+7TOVqun3baj8yw6l3Ix+3 K53w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id f14si5508192edt.92.2019.10.11.08.07.21; Fri, 11 Oct 2019 08:07:21 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728070AbfJKPHU (ORCPT + 20 others); Fri, 11 Oct 2019 11:07:20 -0400 Received: from foss.arm.com ([217.140.110.172]:35212 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726332AbfJKPHU (ORCPT ); Fri, 11 Oct 2019 11:07:20 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A77B8142F; Fri, 11 Oct 2019 08:07:19 -0700 (PDT) Received: from e103592.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id A59083F68E; Fri, 11 Oct 2019 08:07:16 -0700 (PDT) From: Dave Martin To: linux-kernel@vger.kernel.org Cc: Amit Kachhap , Andrew Jones , Arnd Bergmann , Catalin Marinas , Eugene Syromiatnikov , Florian Weimer , "H.J. Lu" , Jann Horn , Kees Cook , =?utf-8?q?Kristina_Mart=C5=A1enko?= , Marc Zyngier , Mark Brown , Paul Elliott , Peter Zijlstra , Richard Henderson , Sudakshina Das , Suzuki Poulose , Szabolcs Nagy , Thomas Gleixner , Vincenzo Frascino , Will Deacon , Yu-cheng Yu , linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: [FIXUP 1/2] squash! arm64: Basic Branch Target Identification support Date: Fri, 11 Oct 2019 16:06:28 +0100 Message-Id: <1570806389-16014-2-git-send-email-Dave.Martin@arm.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1570806389-16014-1-git-send-email-Dave.Martin@arm.com> References: <1570733080-21015-6-git-send-email-Dave.Martin@arm.com> <1570806389-16014-1-git-send-email-Dave.Martin@arm.com> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Dave Martin --- Changes since v2: * Fix Kconfig typo that claimed that Pointer authentication is part of ARMv8.2. It's v8.3. --- arch/arm64/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.1.4 diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 563dec5..6e26b72 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -1425,7 +1425,7 @@ config ARM64_BTI This is intended to provide complementary protection to other control flow integrity protection mechanisms, such as the Pointer - authentication mechanism provided as part of the ARMv8.2 Extensions. + authentication mechanism provided as part of the ARMv8.3 Extensions. To make use of BTI on CPUs that support it, say Y.