diff mbox

[v5,2/8] arm_gic: Fix GICD_ICPENDR and GICD_ISPENDR writes

Message ID 1390941165-2079-3-git-send-email-christoffer.dall@linaro.org
State New
Headers show

Commit Message

Christoffer Dall Jan. 28, 2014, 8:32 p.m. UTC 
Fix two bugs that would allow changing the state of SGIs through the
ICPENDR and ISPENDRs.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
Changes [v1 -> v5]:
 - New patch in series

 hw/intc/arm_gic.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

Comments

Peter Maydell Jan. 29, 2014, 12:03 p.m. UTC | #1 
On 28 January 2014 20:32, Christoffer Dall <christoffer.dall@linaro.org> wrote:
> Fix two bugs that would allow changing the state of SGIs through the
> ICPENDR and ISPENDRs.
>
> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM
diff mbox

Patch

diff --git a/hw/intc/arm_gic.c b/hw/intc/arm_gic.c
index 98c6ff5..1c4a114 100644
--- a/hw/intc/arm_gic.c
+++ b/hw/intc/arm_gic.c
@@ -428,7 +428,7 @@  static void gic_dist_writeb(void *opaque, hwaddr offset,
         if (irq >= s->num_irq)
             goto bad_reg;
         if (irq < GIC_NR_SGIS) {
-            irq = 0;
+            value = 0;
         }
 
         for (i = 0; i < 8; i++) {
@@ -441,6 +441,10 @@  static void gic_dist_writeb(void *opaque, hwaddr offset,
         irq = (offset - 0x280) * 8 + GIC_BASE_IRQ;
         if (irq >= s->num_irq)
             goto bad_reg;
+        if (irq < GIC_NR_SGIS) {
+            value = 0;
+        }
+
         for (i = 0; i < 8; i++) {
             /* ??? This currently clears the pending bit for all CPUs, even
                for per-CPU interrupts.  It's unclear whether this is the