MMCR0 writes will change only MMCR0 bits which are used to calculate
HFLAGS_PMCC0, HFLAGS_PMCC1 and HFLAGS_INSN_CNT hflags. No other machine
register will be changed during this operation. This means that
hreg_compute_hflags() is overkill for what we need to do.
pmu_update_summaries() is already updating HFLAGS_INSN_CNT without
calling hreg_compure_hflags(). Let's do the same for the other 2 MMCR0
hflags.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
---
target/ppc/power8-pmu.c | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/target/ppc/power8-pmu.c b/target/ppc/power8-pmu.c
index 73713ca2a3..69342413bd 100644
--- a/target/ppc/power8-pmu.c
+++ b/target/ppc/power8-pmu.c
@@ -224,12 +224,17 @@ static void pmu_update_overflow_timers(CPUPPCState *env)
void helper_store_mmcr0(CPUPPCState *env, target_ulong value)
{
+ uint32_t hflags_pmcc0 = (value & MMCR0_PMCC0) != 0;
+ uint32_t hflags_pmcc1 = (value & MMCR0_PMCC1) != 0;