From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758061Ab2FTWsR (ORCPT ); Wed, 20 Jun 2012 18:48:17 -0400 Received: from e37.co.us.ibm.com ([32.97.110.158]:50450 "EHLO e37.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752457Ab2FTWsB (ORCPT ); Wed, 20 Jun 2012 18:48:01 -0400 From: John Stultz To: LKML Cc: =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= , Russell King , Paul Gortmaker , Alexander Shishkin , John Stultz Subject: [PATCH 02/15] ARM: etm: Don't limit tracing to only non-secure code. Date: Wed, 20 Jun 2012 18:47:34 -0400 Message-Id: <1340232467-6023-3-git-send-email-john.stultz@linaro.org> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1340232467-6023-1-git-send-email-john.stultz@linaro.org> References: <1340232467-6023-1-git-send-email-john.stultz@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Content-Scanned: Fidelis XPS MAILER x-cbid: 12062022-7408-0000-0000-0000060C8BF3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Arve Hjønnevåg On some systems kernel code is considered secure, and this code already limits tracing to the kernel text segment which results in no trace data. CC: Russell King CC: Paul Gortmaker CC: Alexander Shishkin Acked-by: Alexander Shishkin Signed-off-by: Arve Hjønnevåg Signed-off-by: John Stultz --- arch/arm/kernel/etm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/etm.c b/arch/arm/kernel/etm.c index bd295e8..d7622f9 100644 --- a/arch/arm/kernel/etm.c +++ b/arch/arm/kernel/etm.c @@ -56,7 +56,7 @@ static inline bool trace_isrunning(struct tracectx *t) static int etm_setup_address_range(struct tracectx *t, int n, unsigned long start, unsigned long end, int exclude, int data) { - u32 flags = ETMAAT_ARM | ETMAAT_IGNCONTEXTID | ETMAAT_NSONLY | \ + u32 flags = ETMAAT_ARM | ETMAAT_IGNCONTEXTID | ETMAAT_IGNSECURITY | ETMAAT_NOVALCMP; if (n < 1 || n > t->ncmppairs) -- 1.7.9.5