target-openrisc: Use cpu_exec_interrupt qom hook

Cc: Jia Liu <proljc@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Tested-by: Jia Liu <proljc@gmail.com>
Message-id: 1410626734-3804-17-git-send-email-rth@twiddle.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

3 files changed, 22 insertions, 0 deletions

diff --git a/target-openrisc/cpu.c b/target-openrisc/cpu.c
index 08e724c..39bedc1 100644
--- a/target-openrisc/cpu.c
+++ b/target-openrisc/cpu.c
@@ -165,6 +165,7 @@ static void openrisc_cpu_class_init(ObjectClass *oc, void *data)
     cc->class_by_name = openrisc_cpu_class_by_name;
     cc->has_work = openrisc_cpu_has_work;
     cc->do_interrupt = openrisc_cpu_do_interrupt;
+    cc->cpu_exec_interrupt = openrisc_cpu_exec_interrupt;
     cc->dump_state = openrisc_cpu_dump_state;
     cc->set_pc = openrisc_cpu_set_pc;
     cc->gdb_read_register = openrisc_cpu_gdb_read_register;
diff --git a/target-openrisc/cpu.h b/target-openrisc/cpu.h
index 4512f45..69b96c6 100644
--- a/target-openrisc/cpu.h
+++ b/target-openrisc/cpu.h
@@ -348,6 +348,7 @@ OpenRISCCPU *cpu_openrisc_init(const char *cpu_model);
 void cpu_openrisc_list(FILE *f, fprintf_function cpu_fprintf);
 int cpu_openrisc_exec(CPUOpenRISCState *s);
 void openrisc_cpu_do_interrupt(CPUState *cpu);
+bool openrisc_cpu_exec_interrupt(CPUState *cpu, int int_req);
 void openrisc_cpu_dump_state(CPUState *cpu, FILE *f,
                              fprintf_function cpu_fprintf, int flags);
 hwaddr openrisc_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
diff --git a/target-openrisc/interrupt.c b/target-openrisc/interrupt.c
index 3de567e..e480cfd 100644
--- a/target-openrisc/interrupt.c
+++ b/target-openrisc/interrupt.c
@@ -63,3 +63,23 @@ void openrisc_cpu_do_interrupt(CPUState *cs)
 
     cs->exception_index = -1;
 }
+
+bool openrisc_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
+{
+    OpenRISCCPU *cpu = OPENRISC_CPU(cs);
+    CPUOpenRISCState *env = &cpu->env;
+    int idx = -1;
+
+    if ((interrupt_request & CPU_INTERRUPT_HARD) && (env->sr & SR_IEE)) {
+        idx = EXCP_INT;
+    }
+    if ((interrupt_request & CPU_INTERRUPT_TIMER) && (env->sr & SR_TEE)) {
+        idx = EXCP_TICK;
+    }
+    if (idx >= 0) {
+        cs->exception_index = idx;
+        openrisc_cpu_do_interrupt(cs);
+        return true;
+    }
+    return false;
+}