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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=no 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 07757C4CECE for ; Mon, 14 Oct 2019 12:33:01 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D9BAB21744 for ; Mon, 14 Oct 2019 12:33:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730570AbfJNMdA (ORCPT ); Mon, 14 Oct 2019 08:33:00 -0400 Received: from foss.arm.com ([217.140.110.172]:42546 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730394AbfJNMdA (ORCPT ); Mon, 14 Oct 2019 08:33:00 -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 B47DC337; Mon, 14 Oct 2019 05:32:59 -0700 (PDT) Received: from dawn-kernel.cambridge.arm.com (unknown [10.1.197.116]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 8D66A3F68E; Mon, 14 Oct 2019 05:32:58 -0700 (PDT) From: Suzuki K Poulose To: stable@vger.kernel.org Cc: suzuki.poulose@arm.com, gregkh@linuxfoundation.org, will@kernel.org, catalin.marinas@arm.com, mark.rutland@arm.com, maz@kernel.org, linux-arm-kernel@lists.infradead.org Subject: [stable-4.4][PATCH 0/2] arm64: cpufeature: Fix truncating a feature value Date: Mon, 14 Oct 2019 13:32:52 +0100 Message-Id: <20191014123254.22002-1-suzuki.poulose@arm.com> X-Mailer: git-send-email 2.21.0 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org This series fixes the issue with arm64_ftr_value() where the signed fields are truncated to unsigned values corrupting the system wide safe values. Suzuki K Poulose (2): arm64: capabilities: Handle sign of the feature bit arm64: Rename cpuid_feature field extract routines arch/arm64/include/asm/cpufeature.h | 29 +++++++++++++++--------- arch/arm64/kernel/cpufeature.c | 35 ++++++++++++++++------------- arch/arm64/kernel/debug-monitors.c | 2 +- arch/arm64/kvm/sys_regs.c | 2 +- arch/arm64/mm/context.c | 3 ++- 5 files changed, 42 insertions(+), 29 deletions(-) -- 2.21.0