1 files changed, 66 insertions, 0 deletions
diff --git a/hw/arm/pic_cpu.c b/hw/arm/pic_cpu.c
new file mode 100644
index 000000000..82236006d
--- /dev/null
+++ b/hw/arm/pic_cpu.c
@@ -0,0 +1,66 @@
+/*
+ * Generic ARM Programmable Interrupt Controller support.
+ *
+ * Copyright (c) 2006 CodeSourcery.
+ * Written by Paul Brook
+ *
+ * This code is licensed under the LGPL
+ */
+
+#include "hw/hw.h"
+#include "hw/arm-misc.h"
+#include "sysemu/kvm.h"
+
+/* Input 0 is IRQ and input 1 is FIQ.  */
+static void arm_pic_cpu_handler(void *opaque, int irq, int level)
+{
+    ARMCPU *cpu = opaque;
+    CPUARMState *env = &cpu->env;
+
+    switch (irq) {
+    case ARM_PIC_CPU_IRQ:
+        if (level)
+            cpu_interrupt(env, CPU_INTERRUPT_HARD);
+        else
+            cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
+        break;
+    case ARM_PIC_CPU_FIQ:
+        if (level)
+            cpu_interrupt(env, CPU_INTERRUPT_FIQ);
+        else
+            cpu_reset_interrupt(env, CPU_INTERRUPT_FIQ);
+        break;
+    default:
+        hw_error("arm_pic_cpu_handler: Bad interrupt line %d\n", irq);
+    }
+}
+
+static void kvm_arm_pic_cpu_handler(void *opaque, int irq, int level)
+{
+#ifdef CONFIG_KVM
+    ARMCPU *cpu = opaque;
+    CPUState *cs = CPU(cpu);
+    int kvm_irq = KVM_ARM_IRQ_TYPE_CPU << KVM_ARM_IRQ_TYPE_SHIFT;
+
+    switch (irq) {
+    case ARM_PIC_CPU_IRQ:
+        kvm_irq |= KVM_ARM_IRQ_CPU_IRQ;
+        break;
+    case ARM_PIC_CPU_FIQ:
+        kvm_irq |= KVM_ARM_IRQ_CPU_FIQ;
+        break;
+    default:
+        hw_error("kvm_arm_pic_cpu_handler: Bad interrupt line %d\n", irq);
+    }
+    kvm_irq |= cs->cpu_index << KVM_ARM_IRQ_VCPU_SHIFT;
+    kvm_set_irq(kvm_state, kvm_irq, level ? 1 : 0);
+#endif
+}
+
+qemu_irq *arm_pic_init_cpu(ARMCPU *cpu)
+{
+    if (kvm_enabled()) {
+        return qemu_allocate_irqs(kvm_arm_pic_cpu_handler, cpu, 2);
+    }
+    return qemu_allocate_irqs(arm_pic_cpu_handler, cpu, 2);
+}