Factor accel_create_vcpu_thread() out of system/cpus.c
to be able to access accel/ internal definitions.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
---
 include/qemu/accel.h |  2 ++
 accel/accel-common.c | 19 +++++++++++++++++++
 system/cpus.c        |  4 +---
 3 files changed, 22 insertions(+), 3 deletions(-)

diff --git a/include/qemu/accel.h b/include/qemu/accel.h
index 4ed5f264a88..4e30a633bca 100644
--- a/include/qemu/accel.h
+++ b/include/qemu/accel.h
@@ -93,6 +93,8 @@ void accel_setup_post(MachineState *ms);
  */
 void accel_cpu_instance_init(CPUState *cpu);
 
+void accel_create_vcpu_thread(AccelState *accel, CPUState *cpu);
+
 /**
  * accel_cpu_common_realize:
  * @cpu: The CPU that needs to call accel-specific cpu realization.
diff --git a/accel/accel-common.c b/accel/accel-common.c
index d1a5f3ca3df..d719917063e 100644
--- a/accel/accel-common.c
+++ b/accel/accel-common.c
@@ -89,6 +89,25 @@ void accel_cpu_instance_init(CPUState *cpu)
     }
 }
 
+void accel_create_vcpu_thread(AccelState *accel, CPUState *cpu)
+{
+    AccelClass *ac;
+
+    if (!accel) {
+        accel = current_accel();
+    }
+    ac = ACCEL_GET_CLASS(accel);
+
+    /* accelerators all implement the AccelOpsClass */
+    g_assert(ac->ops);
+
+    if (ac->ops->create_vcpu_thread != NULL) {
+        ac->ops->create_vcpu_thread(cpu);
+    } else {
+        g_assert_not_reached();
+    }
+}
+
 bool accel_cpu_common_realize(CPUState *cpu, Error **errp)
 {
     AccelState *accel = current_accel();
diff --git a/system/cpus.c b/system/cpus.c
index 4fb764ac880..1721b32fc3f 100644
--- a/system/cpus.c
+++ b/system/cpus.c
@@ -698,9 +698,7 @@ void qemu_init_vcpu(CPUState *cpu)
         cpu_address_space_init(cpu, 0, "cpu-memory", cpu->memory);
     }
 
-    /* accelerators all implement the AccelOpsClass */
-    g_assert(cpus_accel != NULL && cpus_accel->create_vcpu_thread != NULL);
-    cpus_accel->create_vcpu_thread(cpu);
+    accel_create_vcpu_thread(NULL, cpu);
 
     while (!cpu->created) {
         qemu_cond_wait(&qemu_cpu_cond, &bql);
-- 
2.49.0

On 6/20/25 10:13, Philippe Mathieu-Daudé wrote:
> Factor accel_create_vcpu_thread() out of system/cpus.c
> to be able to access accel/ internal definitions.
> 
> Signed-off-by: Philippe Mathieu-Daudé<philmd@linaro.org>
> ---
>   include/qemu/accel.h |  2 ++
>   accel/accel-common.c | 19 +++++++++++++++++++
>   system/cpus.c        |  4 +---
>   3 files changed, 22 insertions(+), 3 deletions(-)

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

r~