cpu: Introduce cpu_class_set_parent_reset()

Similarly to what we already do with qdev, use a helper to overload the
reset QOM methods of the parent in children classes, for clarity.

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <157650847239.354886.2782881118916307978.stgit@bahia.lan>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/hw/core/cpu.c b/hw/core/cpu.c
index db1a03c6bbb3fc027cb17c991aa51dbe1489f04c..fde5fd395b100518041e6fc0f9faefc9467f46fb 100644 (file)
--- a/hw/core/cpu.c
+++ b/hw/core/cpu.c
@@ -239,6 +239,14 @@ void cpu_dump_statistics(CPUState *cpu, int flags)
     }
 }
 
+void cpu_class_set_parent_reset(CPUClass *cc,
+                                void (*child_reset)(CPUState *cpu),
+                                void (**parent_reset)(CPUState *cpu))
+{
+    *parent_reset = cc->reset;
+    cc->reset = child_reset;
+}
+
 void cpu_reset(CPUState *cpu)
 {
     CPUClass *klass = CPU_GET_CLASS(cpu);

diff --git a/include/hw/core/cpu.h b/include/hw/core/cpu.h
index 77c6f05299031544000351bf45781ec8a8013ef2..73e9a869a41c47d088a9ac07bbd36f2dec0990f0 100644 (file)
--- a/include/hw/core/cpu.h
+++ b/include/hw/core/cpu.h
@@ -1135,6 +1135,10 @@ void cpu_exec_unrealizefn(CPUState *cpu);
  */
 bool target_words_bigendian(void);
 
+void cpu_class_set_parent_reset(CPUClass *cc,
+                                void (*child_reset)(CPUState *cpu),
+                                void (**parent_reset)(CPUState *cpu));
+
 #ifdef NEED_CPU_H
 
 #ifdef CONFIG_SOFTMMU