target-unicore32: Use cpu_exec_interrupt qom hook

Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Message-id: 1410626734-3804-14-git-send-email-rth@twiddle.net
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

3 files changed, 17 insertions, 0 deletions

diff --git a/target-unicore32/cpu-qom.h b/target-unicore32/cpu-qom.h
index f727760d9e..ea65b83318 100644
--- a/target-unicore32/cpu-qom.h
+++ b/target-unicore32/cpu-qom.h
@@ -61,6 +61,7 @@ static inline UniCore32CPU *uc32_env_get_cpu(CPUUniCore32State *env)
 #define ENV_OFFSET offsetof(UniCore32CPU, env)
 
 void uc32_cpu_do_interrupt(CPUState *cpu);
+bool uc32_cpu_exec_interrupt(CPUState *cpu, int int_req);
 void uc32_cpu_dump_state(CPUState *cpu, FILE *f,
                          fprintf_function cpu_fprintf, int flags);
 hwaddr uc32_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
diff --git a/target-unicore32/cpu.c b/target-unicore32/cpu.c
index 2d2c429a35..5b32987173 100644
--- a/target-unicore32/cpu.c
+++ b/target-unicore32/cpu.c
@@ -146,6 +146,7 @@ static void uc32_cpu_class_init(ObjectClass *oc, void *data)
     cc->class_by_name = uc32_cpu_class_by_name;
     cc->has_work = uc32_cpu_has_work;
     cc->do_interrupt = uc32_cpu_do_interrupt;
+    cc->cpu_exec_interrupt = uc32_cpu_exec_interrupt;
     cc->dump_state = uc32_cpu_dump_state;
     cc->set_pc = uc32_cpu_set_pc;
 #ifdef CONFIG_USER_ONLY
diff --git a/target-unicore32/helper.c b/target-unicore32/helper.c
index e5ebbf4b18..b4654fa98a 100644
--- a/target-unicore32/helper.c
+++ b/target-unicore32/helper.c
@@ -250,3 +250,18 @@ int uc32_cpu_handle_mmu_fault(CPUState *cs, vaddr address,
     return 1;
 }
 #endif
+
+bool uc32_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
+{
+    if (interrupt_request & CPU_INTERRUPT_HARD) {
+        UniCore32CPU *cpu = UNICORE32_CPU(cs);
+        CPUUniCore32State *env = &cpu->env;
+
+        if (!(env->uncached_asr & ASR_I)) {
+            cs->exception_index = UC32_EXCP_INTR;
+            uc32_cpu_do_interrupt(cs);
+            return true;
+        }
+    }
+    return false;
+}