[Qemu-devel] [PATCH 1/3] arm_gic: Fix read of GICD_ICFGR

[Adam Lackorzynski <adam@os.inf.tu-dresden.de>]

The GICD_ICFGR register covers 4 interrupts per byte.

Signed-off-by: Adam Lackorzynski <adam@os.inf.tu-dresden.de>
---
 hw/intc/arm_gic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/intc/arm_gic.c b/hw/intc/arm_gic.c
index 1532ef9..d2b1aaf 100644
--- a/hw/intc/arm_gic.c
+++ b/hw/intc/arm_gic.c
@@ -372,7 +372,7 @@ static uint32_t gic_dist_readb(void *opaque, hwaddr offset)
         }
     } else if (offset < 0xf00) {
         /* Interrupt Configuration.  */
-        irq = (offset - 0xc00) * 2 + GIC_BASE_IRQ;
+        irq = (offset - 0xc00) * 4 + GIC_BASE_IRQ;
         if (irq >= s->num_irq)
             goto bad_reg;
         res = 0;
-- 
2.0.1