[Qemu-devel] [PATCH 12/12] target-cris: Override do_interrupt for pre-v32 CPU cores

["Andreas Färber" <afaerber@suse.de>]

Instead of forwarding from cris_cpu_do_interrupt() to do_interruptv10(),
override CPUClass::do_interrupt with crisv10_cpu_do_interrupt() in the
newly introduced class_init functions.

Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 target-cris/cpu-qom.h |  1 +
 target-cris/cpu.c     |  8 ++++++++
 target-cris/helper.c  | 14 ++++++++------
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/target-cris/cpu-qom.h b/target-cris/cpu-qom.h
index deea1d8..03829bd 100644
--- a/target-cris/cpu-qom.h
+++ b/target-cris/cpu-qom.h
@@ -74,5 +74,6 @@ static inline CRISCPU *cris_env_get_cpu(CPUCRISState *env)
 #define ENV_OFFSET offsetof(CRISCPU, env)
 
 void cris_cpu_do_interrupt(CPUState *cpu);
+void crisv10_cpu_do_interrupt(CPUState *cpu);
 
 #endif
diff --git a/target-cris/cpu.c b/target-cris/cpu.c
index 95cbf39..67181e5 100644
--- a/target-cris/cpu.c
+++ b/target-cris/cpu.c
@@ -169,30 +169,38 @@ static void cris_cpu_initfn(Object *obj)
 
 static void crisv8_cpu_class_init(ObjectClass *oc, void *data)
 {
+    CPUClass *cc = CPU_CLASS(oc);
     CRISCPUClass *ccc = CRIS_CPU_CLASS(oc);
 
     ccc->vr = 8;
+    cc->do_interrupt = crisv10_cpu_do_interrupt;
 }
 
 static void crisv9_cpu_class_init(ObjectClass *oc, void *data)
 {
+    CPUClass *cc = CPU_CLASS(oc);
     CRISCPUClass *ccc = CRIS_CPU_CLASS(oc);
 
     ccc->vr = 9;
+    cc->do_interrupt = crisv10_cpu_do_interrupt;
 }
 
 static void crisv10_cpu_class_init(ObjectClass *oc, void *data)
 {
+    CPUClass *cc = CPU_CLASS(oc);
     CRISCPUClass *ccc = CRIS_CPU_CLASS(oc);
 
     ccc->vr = 10;
+    cc->do_interrupt = crisv10_cpu_do_interrupt;
 }
 
 static void crisv11_cpu_class_init(ObjectClass *oc, void *data)
 {
+    CPUClass *cc = CPU_CLASS(oc);
     CRISCPUClass *ccc = CRIS_CPU_CLASS(oc);
 
     ccc->vr = 11;
+    cc->do_interrupt = crisv10_cpu_do_interrupt;
 }
 
 static void crisv32_cpu_class_init(ObjectClass *oc, void *data)
diff --git a/target-cris/helper.c b/target-cris/helper.c
index e1ef7bc..466cc2f 100644
--- a/target-cris/helper.c
+++ b/target-cris/helper.c
@@ -45,6 +45,11 @@ void cris_cpu_do_interrupt(CPUState *cs)
     env->pregs[PR_ERP] = env->pc;
 }
 
+void crisv10_cpu_do_interrupt(CPUState *cs)
+{
+    cris_cpu_do_interrupt(cs);
+}
+
 int cpu_cris_handle_mmu_fault(CPUCRISState * env, target_ulong address, int rw,
                               int mmu_idx)
 {
@@ -109,9 +114,10 @@ int cpu_cris_handle_mmu_fault(CPUCRISState *env, target_ulong address, int rw,
     return r;
 }
 
-static void do_interruptv10(CPUCRISState *env)
+void crisv10_cpu_do_interrupt(CPUState *cs)
 {
-    D(CPUState *cs = CPU(cris_env_get_cpu(env)));
+    CRISCPU *cpu = CRIS_CPU(cs);
+    CPUCRISState *env = &cpu->env;
     int ex_vec = -1;
 
     D_LOG("exception index=%d interrupt_req=%d\n",
@@ -171,10 +177,6 @@ void cris_cpu_do_interrupt(CPUState *cs)
     CPUCRISState *env = &cpu->env;
     int ex_vec = -1;
 
-    if (env->pregs[PR_VR] < 32) {
-        return do_interruptv10(env);
-    }
-
     D_LOG("exception index=%d interrupt_req=%d\n",
           env->exception_index,
           cs->interrupt_request);
-- 
1.8.1.4