[Qemu-devel] [PATCH 01/10] arm-pic: add one extra interrupt to support EXITTB interrupts

[Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>]

Some ARM processors (consider PXA2xx, Omap1, etc.) want to be able to send
CPU_INTERRUPT_EXITTB to the cpu. Support doing that through common arm_pic.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
 hw/arm-misc.h |    1 +
 hw/arm_pic.c  |    6 +++++-
 2 files changed, 6 insertions(+), 1 deletions(-)

diff --git a/hw/arm-misc.h b/hw/arm-misc.h
index 010acb4..f2e45ee 100644
--- a/hw/arm-misc.h
+++ b/hw/arm-misc.h
@@ -14,6 +14,7 @@
 /* The CPU is also modeled as an interrupt controller.  */
 #define ARM_PIC_CPU_IRQ 0
 #define ARM_PIC_CPU_FIQ 1
+#define ARM_PIC_CPU_WAKE 2
 qemu_irq *arm_pic_init_cpu(CPUState *env);
 
 /* armv7m.c */
diff --git a/hw/arm_pic.c b/hw/arm_pic.c
index f44568c..9865a29 100644
--- a/hw/arm_pic.c
+++ b/hw/arm_pic.c
@@ -38,6 +38,10 @@ static void arm_pic_cpu_handler(void *opaque, int irq, int level)
         else
             cpu_reset_interrupt(env, CPU_INTERRUPT_FIQ);
         break;
+    case ARM_PIC_CPU_WAKE:
+        if (env->halted && level)
+            cpu_interrupt(env, CPU_INTERRUPT_EXITTB);
+        break;
     default:
         hw_error("arm_pic_cpu_handler: Bad interrput line %d\n", irq);
     }
@@ -45,5 +49,5 @@ static void arm_pic_cpu_handler(void *opaque, int irq, int level)
 
 qemu_irq *arm_pic_init_cpu(CPUState *env)
 {
-    return qemu_allocate_irqs(arm_pic_cpu_handler, env, 2);
+    return qemu_allocate_irqs(arm_pic_cpu_handler, env, 3);
 }
-- 
1.7.2.3