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[PATCH 01/10] target/arm: Don't corrupt high half of PMOVSR when cycle c
From: |
Peter Maydell |
Subject: |
[PATCH 01/10] target/arm: Don't corrupt high half of PMOVSR when cycle counter overflows |
Date: |
Thu, 11 Aug 2022 18:16:10 +0100 |
When the cycle counter overflows, we are intended to set bit 31 in PMOVSR
to indicate this. However a missing ULL suffix means that we end up
setting all of bits 63-31. Fix the bug.
Signed-off-by: Peter Maydell <peter.maydell@linaro.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 d7bc467a2a5..87c89748954 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -1186,7 +1186,7 @@ static void pmccntr_op_start(CPUARMState *env)
uint64_t overflow_mask = env->cp15.c9_pmcr & PMCRLC ? \
1ull << 63 : 1ull << 31;
if (env->cp15.c15_ccnt & ~new_pmccntr & overflow_mask) {
- env->cp15.c9_pmovsr |= (1 << 31);
+ env->cp15.c9_pmovsr |= (1ULL << 31);
pmu_update_irq(env);
}
--
2.25.1