accel: Introduce AccelOpsClass::cpu_target_realize() hook

Allow accelerators to set vCPU properties before its realization.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Akihiko Odaki <odaki@rsg.ci.i.u-tokyo.ac.jp>
Message-ID: <20251103101034.59039-16-philmd@linaro.org>

diff --git a/accel/accel-common.c b/accel/accel-common.c
index 850c5ab4b8e43ccac7a216ffa27005b8039f1787..eecb2a292afe55c450064de8bfa09de3035ceacc 100644 (file)
--- a/accel/accel-common.c
+++ b/accel/accel-common.c
@@ -106,6 +106,11 @@ bool accel_cpu_common_realize(CPUState *cpu, Error **errp)
     if (acc->cpu_common_realize && !acc->cpu_common_realize(cpu, errp)) {
         return false;
     }
+    if (acc->ops
+        && acc->ops->cpu_target_realize
+        && !acc->ops->cpu_target_realize(cpu, errp)) {
+        return false;
+    }
 
     return true;
 }

diff --git a/include/accel/accel-cpu-ops.h b/include/accel/accel-cpu-ops.h
index 0674764914f76472f7307907c76422ef743f6820..9c07a903ea04a192f2194f00f53888aa44a7489c 100644 (file)
--- a/include/accel/accel-cpu-ops.h
+++ b/include/accel/accel-cpu-ops.h
@@ -34,6 +34,7 @@ struct AccelOpsClass {
     /* initialization function called when accel is chosen */
     void (*ops_init)(AccelClass *ac);
 
+    bool (*cpu_target_realize)(CPUState *cpu, Error **errp);
     bool (*cpus_are_resettable)(void);
     void (*cpu_reset_hold)(CPUState *cpu);