[Qemu-devel] [PATCH 2/3] hw/arm_gic: Fix comparison with priority mask register

[Peter Maydell]

The GIC spec states that only interrupts with higher priority
than the value in the GICC_PMR priority mask register are
passed through to the processor. We were incorrectly allowing
through interrupts with a priority equal to the specified
value: correct the comparison operation to match the spec.

Signed-off-by: Peter Maydell <address@hidden>
---
 hw/arm_gic.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/arm_gic.c b/hw/arm_gic.c
index f9e423f..672d539 100644
--- a/hw/arm_gic.c
+++ b/hw/arm_gic.c
@@ -73,7 +73,7 @@ void gic_update(GICState *s)
             }
         }
         level = 0;
-        if (best_prio <= s->priority_mask[cpu]) {
+        if (best_prio < s->priority_mask[cpu]) {
             s->current_pending[cpu] = best_irq;
             if (best_prio < s->running_priority[cpu]) {
                 DPRINTF("Raised pending IRQ %d\n", best_irq);
-- 
1.7.9.5