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: 11185695 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 995AD1709 for ; Fri, 11 Oct 2019 15:07:25 +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 733A7222D4 for ; Fri, 11 Oct 2019 15:07:23 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="JozRlluG" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 733A7222D4 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com 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=Ri05sWu96J5AUytx7bhfns/sJwWxjEy+WtXlFlFfLWc=; b=JozRlluGT2ejrGU8TvPuXCFpU4 /0moF8jtpiV+vaNqipIDEI4Sny99q2+beCq9xSejef+qTJJ02UkEqQOvt4ENzENhzgL9r47moH1dJ 0VtYuHSaBiDFDyhX9SLQjRJ38tGV5sioxcx8T9hw8neqlv5nUCUfL7TppLiufy6Hsx0zG/n+sEYZ5 vn3eP1NJS9tmTWZtPWSL5263gsnlnMQKDWvc5LM3EQw4MeKh7fpWog7g0Axrfkh9zA0ZUQ1qghpzQ DwCrbiNkMJGW/2rnGSSzpG/e/GJnYJedLqHbbgN3rJxf4hGgnnZ2iaSpWwJsiOem6JP+9rFPzIi7A cC5+v2og==; 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 1iIwVm-0000sR-PK; Fri, 11 Oct 2019 15:07:22 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iIwVk-0000rq-2C for linux-arm-kernel@lists.infradead.org; Fri, 11 Oct 2019 15:07:21 +0000 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 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> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191011_080720_145658_4E63085D X-CRM114-Status: GOOD ( 10.60 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.2 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 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: Paul Elliott , Peter Zijlstra , Catalin Marinas , Yu-cheng Yu , Amit Kachhap , Vincenzo Frascino , Will Deacon , linux-arch@vger.kernel.org, Marc Zyngier , Suzuki Poulose , Eugene Syromiatnikov , Szabolcs Nagy , "H.J. Lu" , Andrew Jones , Kees Cook , Arnd Bergmann , Jann Horn , Richard Henderson , =?utf-8?q?Kristina_Mart?= =?utf-8?q?=C5=A1enko?= , Mark Brown , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Florian Weimer , Sudakshina Das MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.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(-) 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.