2 * QEMU MIPS interrupt support
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23 #include "qemu/osdep.h"
24 #include "qemu/main-loop.h"
26 #include "hw/mips/cpudevs.h"
27 #include "sysemu/kvm.h"
30 static void cpu_mips_irq_request(void *opaque, int irq, int level)
32 MIPSCPU *cpu = opaque;
33 CPUMIPSState *env = &cpu->env;
34 CPUState *cs = CPU(cpu);
36 if (irq < 0 || irq > 7) {
40 QEMU_IOTHREAD_LOCK_GUARD();
43 env->CP0_Cause |= 1 << (irq + CP0Ca_IP);
45 env->CP0_Cause &= ~(1 << (irq + CP0Ca_IP));
48 if (kvm_enabled() && (irq == 2 || irq == 3)) {
49 kvm_mips_set_interrupt(cpu, irq, level);
52 if (env->CP0_Cause & CP0Ca_IP_mask) {
53 cpu_interrupt(cs, CPU_INTERRUPT_HARD);
55 cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
59 void cpu_mips_irq_init_cpu(MIPSCPU *cpu)
61 CPUMIPSState *env = &cpu->env;
65 qi = qemu_allocate_irqs(cpu_mips_irq_request, cpu, 8);
66 for (i = 0; i < 8; i++) {
72 void cpu_mips_soft_irq(CPUMIPSState *env, int irq, int level)
74 if (irq < 0 || irq > 2) {
78 qemu_set_irq(env->irq[irq], level);