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From: Aaron Lindsay <alindsay@codeaurora.org>
Date: Fri, 29 Sep 2017 22:08:19 -0400
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Subject: [Qemu-devel] [PATCH 02/13] target/arm: Check PMCNTEN for whether
 PMCCNTR is enabled
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To: qemu-arm@nongnu.org, Peter Maydell <peter.maydell@linaro.org>, Alistair Francis <alistair.francis@xilinx.com>, Peter Crosthwaite <peter.crosthwaite@xilinx.com>, Wei Huang <wei@redhat.com>
Cc: qemu-devel@nongnu.org, Michael Spradling <mspradli@codeaurora.org>, Aaron Lindsay <alindsay@codeaurora.org>, Digant Desai <digantd@codeaurora.org>
List-ID: <qemu-devel.nongnu.org>

Signed-off-by: Aaron Lindsay <alindsay@codeaurora.org>
---
 target/arm/helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index 8be78ea..40c9273 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -964,7 +964,7 @@ static inline bool arm_ccnt_enabled(CPUARMState *env)
 {
     /* This does not support checking PMCCFILTR_EL0 register */
 
-    if (!(env->cp15.c9_pmcr & PMCRE)) {
+    if (!(env->cp15.c9_pmcr & PMCRE) || !(env->cp15.c9_pmcnten & (1 << 31))) {
         return false;
     }
 
-- 
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