Signed-off-by: Andrew Jones <drjones@xxxxxxxxxx>
---
arm/timer.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/arm/timer.c b/arm/timer.c
index ec110ee08d97..89f4c9400ab6 100644
--- a/arm/timer.c
+++ b/arm/timer.c
@@ -17,6 +17,21 @@
static u32 vtimer_irq, vtimer_irq_flags;
static void *gic_ispendr;
+static bool vtimer_irq_received;
+
+static void irq_handler(struct pt_regs *regs)
+{
+ u32 irqstat = gic_read_iar();
+ u32 irqnr = gic_iar_irqnr(irqstat);
+
+ if (irqnr != GICC_INT_SPURIOUS)
+ gic_write_eoir(irqstat);
+
+ if (irqnr == PPI(vtimer_irq)) {
+ write_sysreg(CNTV_CTL_IMASK, cntv_ctl_el0);
+ ++vtimer_irq_received;
+ }
+}
static bool gic_vtimer_pending(void)
{
@@ -64,7 +79,7 @@ static void test_vtimer(void)
report("not pending before", !gic_vtimer_pending());
report("latency within 10 ms", test_cval_10msec());
- report("pending after", gic_vtimer_pending());
+ report("interrupt received", vtimer_irq_received);
/* Disable the timer again */
write_sysreg(0, cntv_ctl_el0);
@@ -92,12 +107,17 @@ static void test_init(void)
switch (gic_version()) {
case 2:
+ writel(1 << PPI(vtimer_irq), gicv2_dist_base() + GICD_ISENABLER + 0);
gic_ispendr = gicv2_dist_base() + GICD_ISPENDR;
break;
case 3:
+ writel(1 << PPI(vtimer_irq), gicv3_sgi_base() + GICR_ISENABLER0);
gic_ispendr = gicv3_sgi_base() + GICD_ISPENDR;
break;
}
+
+ install_irq_handler(EL1H_IRQ, irq_handler);
+ local_irq_enable();
}
int main(void)
--
2.9.4
_______________________________________________
kvmarm mailing list
kvmarm@xxxxxxxxxxxxxxxxxxxxx
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
