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[PATCH v4 4/8] ppc/e500: Use start-powered-off CPUState property


From: Thiago Jung Bauermann
Subject: [PATCH v4 4/8] ppc/e500: Use start-powered-off CPUState property
Date: Tue, 18 Aug 2020 00:33:19 -0300

Instead of setting CPUState::halted to 1 in ppce500_cpu_reset_sec(), use
the start-powered-off property which makes cpu_common_reset() initialize it
to 1 in common code.

Also change creation of CPU object from cpu_create() to object_new() and
qdev_realize() because cpu_create() realizes the CPU and it's not possible
to set a property after the object is realized.

Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
---
 hw/ppc/e500.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/hw/ppc/e500.c b/hw/ppc/e500.c
index ab9884e315..0077aca74d 100644
--- a/hw/ppc/e500.c
+++ b/hw/ppc/e500.c
@@ -704,9 +704,6 @@ static void ppce500_cpu_reset_sec(void *opaque)
 
     cpu_reset(cs);
 
-    /* Secondary CPU starts in halted state for now. Needs to change when
-       implementing non-kernel boot. */
-    cs->halted = 1;
     cs->exception_index = EXCP_HLT;
 }
 
@@ -864,8 +861,9 @@ void ppce500_init(MachineState *machine)
         PowerPCCPU *cpu;
         CPUState *cs;
         qemu_irq *input;
+        Error *err = NULL;
 
-        cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
+        cpu = POWERPC_CPU(object_new(machine->cpu_type));
         env = &cpu->env;
         cs = CPU(cpu);
 
@@ -897,6 +895,19 @@ void ppce500_init(MachineState *machine)
         } else {
             /* Secondary CPUs */
             qemu_register_reset(ppce500_cpu_reset_sec, cpu);
+
+            /*
+             * Secondary CPU starts in halted state for now. Needs to change
+             * when implementing non-kernel boot.
+             */
+            object_property_set_bool(OBJECT(cs), "start-powered-off", true,
+                                     &error_abort);
+        }
+
+        if (!qdev_realize(DEVICE(cs), NULL, &err)) {
+            error_report_err(err);
+            object_unref(OBJECT(cs));
+            exit(EXIT_FAILURE);
         }
     }
 



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