[kvm-unit-tests PATCH] arm64: microbench: fix unexpected PPI

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For the origin value of CNTV_CVAL_EL0 architecturally UNKNOWN, we may
receive an unexpected PPI before we actual trigger the timer interrupt.
So we should set ARCH_TIMER_CTL_IMASK in timer_prep.

Signed-off-by: Jingyi Wang <wangjingyi11@xxxxxxxxxx>
---
 arm/micro-bench.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arm/micro-bench.c b/arm/micro-bench.c
index 362f93e..95c418c 100644
--- a/arm/micro-bench.c
+++ b/arm/micro-bench.c
@@ -227,7 +227,7 @@ static bool timer_prep(void)
 	}
 
 	writel(1 << PPI(TIMER_VTIMER_IRQ), gic_isenabler);
-	write_sysreg(ARCH_TIMER_CTL_ENABLE, cntv_ctl_el0);
+	write_sysreg(ARCH_TIMER_CTL_IMASK | ARCH_TIMER_CTL_ENABLE, cntv_ctl_el0);
 	isb();
 
 	gic_prep_common();
-- 
2.19.1

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