Messages in this thread Patch in this message | | | From | 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 |
| |
From: Arve Hjønnevåg <arve@android.com>
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 <linux@arm.linux.org.uk> CC: Paul Gortmaker <paul.gortmaker@windriver.com> CC: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Arve Hjønnevåg <arve@android.com> Signed-off-by: John Stultz <john.stultz@linaro.org> --- 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 -- 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/
| |