[PATCH 1/1] hw/arm/sbsa-ref.c: Start APs powered off

[Rebecca Cran]

For the SBSA-REF machine start all APs in the powered-off state.
This reduces host CPU usage until PSCI_CPU_ON is called when the APs
are needed.

Signed-off-by: Rebecca Cran <rebecca@quicinc.com>
---
 hw/arm/sbsa-ref.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
index 4bb444684f40..cf0af35c7807 100644
--- a/hw/arm/sbsa-ref.c
+++ b/hw/arm/sbsa-ref.c
@@ -753,6 +753,12 @@ static void sbsa_ref_init(MachineState *machine)
                                     &error_abort);
         }
 
+        /* Configure all APs to be powered off at start */
+        if (n != 0 && object_property_find(cpuobj, "start-powered-off")) {
+            object_property_set_bool(cpuobj, "start-powered-off",
+                                     true, &error_abort);
+        }
+
         object_property_set_link(cpuobj, "memory", OBJECT(sysmem),
                                  &error_abort);
 
-- 
2.30.2