Reset irq_overflow_left to 0 before setting up a new timer. Without this fix, a stale irq_overflow_left value from a previous timer setup could cause incorrect timer behavior.
Signed-off-by: Jay Chang <[email protected]> Reviewed-by: Frank Chang <[email protected]> --- hw/riscv/riscv-iommu-hpm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/riscv/riscv-iommu-hpm.c b/hw/riscv/riscv-iommu-hpm.c index c5034bff79..e8d284ac8b 100644 --- a/hw/riscv/riscv-iommu-hpm.c +++ b/hw/riscv/riscv-iommu-hpm.c @@ -228,6 +228,7 @@ static void hpm_setup_timer(RISCVIOMMUState *s, uint64_t value) } overflow_at = (uint64_t)qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + overflow_ns; + s->irq_overflow_left = 0; if (overflow_at > INT64_MAX) { s->irq_overflow_left = overflow_at - INT64_MAX; -- 2.48.1
