[PATCH 2/5] accel: Introduce accel_cpu_unrealize() stub

["Philippe Mathieu-Daudé" <philmd@linaro.org>]

Prepare the stub for parity with accel_cpu_realize().

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 include/qemu/accel.h | 6 ++++++
 accel/accel-common.c | 4 ++++
 cpu.c                | 3 ++-
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/include/qemu/accel.h b/include/qemu/accel.h
index cb64a07b84..23254c6c9c 100644
--- a/include/qemu/accel.h
+++ b/include/qemu/accel.h
@@ -96,6 +96,12 @@ void accel_cpu_instance_init(CPUState *cpu);
  */
 bool accel_cpu_realize(CPUState *cpu, Error **errp);
 
+/**
+ * accel_cpu_unrealizefn:
+ * @cpu: The CPU that needs to call accel-specific cpu unrealization.
+ */
+void accel_cpu_unrealize(CPUState *cpu);
+
 /**
  * accel_supported_gdbstub_sstep_flags:
  *
diff --git a/accel/accel-common.c b/accel/accel-common.c
index b953855e8b..cc3a45e663 100644
--- a/accel/accel-common.c
+++ b/accel/accel-common.c
@@ -129,6 +129,10 @@ bool accel_cpu_realize(CPUState *cpu, Error **errp)
     return true;
 }
 
+void accel_cpu_unrealize(CPUState *cpu)
+{
+}
+
 int accel_supported_gdbstub_sstep_flags(void)
 {
     AccelState *accel = current_accel();
diff --git a/cpu.c b/cpu.c
index 61c9760e62..b928bbed50 100644
--- a/cpu.c
+++ b/cpu.c
@@ -187,8 +187,9 @@ void cpu_exec_unrealizefn(CPUState *cpu)
     cpu_list_remove(cpu);
     /*
      * Now that the vCPU has been removed from the RCU list, we can call
-     * tcg_exec_unrealizefn, which may free fields using call_rcu.
+     * accel_cpu_unrealize, which may free fields using call_rcu.
      */
+    accel_cpu_unrealize(cpu);
     if (tcg_enabled()) {
         tcg_exec_unrealizefn(cpu);
     }
-- 
2.41.0