From patchwork Fri Nov 16 10:24:06 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Murray X-Patchwork-Id: 998828 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 42xF266mwRz9s1c for ; Fri, 16 Nov 2018 21:33:34 +1100 (AEDT) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=arm.com Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 42xF265XhWzF3Zm for ; Fri, 16 Nov 2018 21:33:34 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=arm.com X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=arm.com (client-ip=217.140.101.70; helo=foss.arm.com; envelope-from=andrew.murray@arm.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=arm.com Received: from foss.arm.com (usa-sjc-mx-foss1.foss.arm.com [217.140.101.70]) by lists.ozlabs.org (Postfix) with ESMTP id 42xDql1SwkzF3JK for ; Fri, 16 Nov 2018 21:24:34 +1100 (AEDT) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 8C3BB15BF; Fri, 16 Nov 2018 02:24:33 -0800 (PST) Received: from e119886-lin.cambridge.arm.com (unknown [10.37.6.11]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 851C23F5BD; Fri, 16 Nov 2018 02:24:30 -0800 (PST) From: Andrew Murray To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Shawn Guo , Sascha Hauer , Will Deacon , Mark Rutland , Benjamin Herrenschmidt , Thomas Gleixner , Borislav Petkov , x86@kernel.org Subject: [PATCH 03/10] arm: perf: add additional validation to set_event_filter Date: Fri, 16 Nov 2018 10:24:06 +0000 Message-Id: <1542363853-13849-4-git-send-email-andrew.murray@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1542363853-13849-1-git-send-email-andrew.murray@arm.com> References: <1542363853-13849-1-git-send-email-andrew.murray@arm.com> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-alpha@vger.kernel.org Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" The armv7pmu driver doesn't support host/guest mode exclusion so let's report this when set_event_filter is called with these exclusion flags set. Signed-off-by: Andrew Murray --- arch/arm/kernel/perf_event_v7.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c index a4fb0f8..c4c9fbb 100644 --- a/arch/arm/kernel/perf_event_v7.c +++ b/arch/arm/kernel/perf_event_v7.c @@ -1074,6 +1074,8 @@ static int armv7pmu_set_event_filter(struct hw_perf_event *event, if (attr->exclude_idle) return -EPERM; + if (attr->exclude_host || attr->exclude_guest) + return -EPERM; if (attr->exclude_user) config_base |= ARMV7_EXCLUDE_USER; if (attr->exclude_kernel)