Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753366Ab2FMCBu (ORCPT ); Tue, 12 Jun 2012 22:01:50 -0400 Received: from e7.ny.us.ibm.com ([32.97.182.137]:43093 "EHLO e7.ny.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753045Ab2FMCBr (ORCPT ); Tue, 12 Jun 2012 22:01:47 -0400 From: John Stultz To: LKML Cc: =?UTF-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= , Russell King , Paul Gortmaker , Alexander Shishkin , Mathieu Poirier , John Stultz Subject: [PATCH 02/15] ARM: etm: Don't limit tracing to only non-secure code. Date: Tue, 12 Jun 2012 19:01:20 -0700 Message-Id: <1339552887-17204-3-git-send-email-john.stultz@linaro.org> X-Mailer: git-send-email 1.7.3.2.146.gca209 In-Reply-To: <1339552887-17204-1-git-send-email-john.stultz@linaro.org> References: <1339552887-17204-1-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: 12061302-5806-0000-0000-0000162677D5 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1464 Lines: 39 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 CC: Mathieu Poirier Acked-by: Alexander Shishkin Signed-off-by: Arve Hjønnevåg Signed-off-by: John Stultz --- arch/arm/kernel/etm.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) 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) -- 1.7.3.2.146.gca209 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/