target-cris: Use cpu_exec_interrupt qom hook

Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 1410626734-3804-11-git-send-email-rth@twiddle.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

3 files changed, 33 insertions, 0 deletions

diff --git a/target-cris/cpu-qom.h b/target-cris/cpu-qom.h
index 7559366..6fc30c2 100644
--- a/target-cris/cpu-qom.h
+++ b/target-cris/cpu-qom.h
@@ -75,6 +75,7 @@ static inline CRISCPU *cris_env_get_cpu(CPUCRISState *env)
 
 void cris_cpu_do_interrupt(CPUState *cpu);
 void crisv10_cpu_do_interrupt(CPUState *cpu);
+bool cris_cpu_exec_interrupt(CPUState *cpu, int int_req);
 
 void cris_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
                          int flags);
diff --git a/target-cris/cpu.c b/target-cris/cpu.c
index 20d8809..528e458 100644
--- a/target-cris/cpu.c
+++ b/target-cris/cpu.c
@@ -279,6 +279,7 @@ static void cris_cpu_class_init(ObjectClass *oc, void *data)
     cc->class_by_name = cris_cpu_class_by_name;
     cc->has_work = cris_cpu_has_work;
     cc->do_interrupt = cris_cpu_do_interrupt;
+    cc->cpu_exec_interrupt = cris_cpu_exec_interrupt;
     cc->dump_state = cris_cpu_dump_state;
     cc->set_pc = cris_cpu_set_pc;
     cc->gdb_read_register = cris_cpu_gdb_read_register;
diff --git a/target-cris/helper.c b/target-cris/helper.c
index e8b8261..e901c3a 100644
--- a/target-cris/helper.c
+++ b/target-cris/helper.c
@@ -283,3 +283,34 @@ hwaddr cris_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
     return phy;
 }
 #endif
+
+bool cris_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
+{
+    CPUClass *cc = CPU_GET_CLASS(cs);
+    CRISCPU *cpu = CRIS_CPU(cs);
+    CPUCRISState *env = &cpu->env;
+    bool ret = false;
+
+    if (interrupt_request & CPU_INTERRUPT_HARD
+        && (env->pregs[PR_CCS] & I_FLAG)
+        && !env->locked_irq) {
+        cs->exception_index = EXCP_IRQ;
+        cc->do_interrupt(cs);
+        ret = true;
+    }
+    if (interrupt_request & CPU_INTERRUPT_NMI) {
+        unsigned int m_flag_archval;
+        if (env->pregs[PR_VR] < 32) {
+            m_flag_archval = M_FLAG_V10;
+        } else {
+            m_flag_archval = M_FLAG_V32;
+        }
+        if ((env->pregs[PR_CCS] & m_flag_archval)) {
+            cs->exception_index = EXCP_NMI;
+            cc->do_interrupt(cs);
+            ret = true;
+        }
+    }
+
+    return ret;
+}