[RFC,07/18] hw/cpu/cpus: add a common start-powered-off property

Commit Message

Damien Hedde March 30, 2022, 12:56 p.m. UTC

Can be used to initialize the same property on all
cpus.

Signed-off-by: Damien Hedde <[e-mail]>
---
 include/hw/cpu/cpus.h | 3 +++
 hw/cpu/cpus.c         | 5 +++++
 2 files changed, 8 insertions(+)

Patch

diff --git a/include/hw/cpu/cpus.h b/include/hw/cpu/cpus.h
index 295d7537e2..7e89a0d018 100644
--- a/include/hw/cpu/cpus.h
+++ b/include/hw/cpu/cpus.h
@@ -46,6 +46,8 @@  OBJECT_DECLARE_TYPE(CpusState, CpusClass, CPUS)
  *      written before realize in order to enable/disable clustering.
  * @cluster_index: The cluster ID. This value is for internal use only and
  *      should not be exposed directly to the user or to the guest.
+ * @start_powered_off: Default start power state of all cpus
+ *     (can be modified on a per-cpu basis after realize).
  */
 struct CpusState {
     /*< private >*/
@@ -59,6 +61,7 @@  struct CpusState {
     struct {
         uint16_t cpus;
     } topology;
+    bool start_powered_off;
     CPUState **cpus;
 };
 
diff --git a/hw/cpu/cpus.c b/hw/cpu/cpus.c
index ed9402c100..d1fe80f0ab 100644
--- a/hw/cpu/cpus.c
+++ b/hw/cpu/cpus.c
@@ -27,6 +27,7 @@  static Property cpus_properties[] = {
      * FIXME: remove this property to keep it internal ?
      */
     DEFINE_PROP_INT32("cluster-id", CpusState, cluster_index, -1),
+    DEFINE_PROP_BOOL("start-powered-off", CpusState, start_powered_off, false),
     DEFINE_PROP_END_OF_LIST()
 };
 
@@ -71,6 +72,10 @@  static void cpus_create_cpus(CpusState *s, Error **errp)
             cpu->cluster_index = s->cluster_index;
         }
 
+        /* set power start state */
+        qdev_prop_set_bit(DEVICE(cpu), "start-powered-off",
+                          s->start_powered_off);
+
         /* let subclass configure the cpu */
         if (cgc->configure_cpu) {
             cgc->configure_cpu(s, cpu, i);