riscv_sifive_e_soc_init(), riscv_sifive_u_soc_init(),
spike_board_init(), spike_v1_10_0_board_init(),
spike_v1_09_1_board_init(), and riscv_virt_board_init() create
"riscv-hart_array" sysbus devices in a way that leaves them unplugged.

Create them the common way that puts them into the main system bus.
Affects machines sifive_e, sifive_u, spike, spike_v1.10, spike_v1.9.1,
and virt.  Visible in "info qtree", here's the change for sifive_e:

     bus: main-system-bus
       type System
    +  dev: riscv.hart_array, id ""
    +    num-harts = 1 (0x1)
    +    hartid-base = 0 (0x0)
    +    cpu-type = "sifive-e31-riscv-cpu"
       dev: sifive_soc.gpio, id ""

Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Alistair Francis <Alistair.Francis@wdc.com>
Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: qemu-riscv@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20200609122339.937862-20-armbru@redhat.com>
---
 hw/riscv/opentitan.c |  5 ++---
 hw/riscv/sifive_e.c  |  5 ++---
 hw/riscv/sifive_u.c  | 14 ++++++--------
 hw/riscv/spike.c     |  4 ++--
 hw/riscv/virt.c      |  4 ++--
 5 files changed, 14 insertions(+), 18 deletions(-)

diff --git a/hw/riscv/opentitan.c b/hw/riscv/opentitan.c
index b4fb836466..29887fe363 100644
--- a/hw/riscv/opentitan.c
+++ b/hw/riscv/opentitan.c
@@ -94,9 +94,8 @@ static void riscv_lowrisc_ibex_soc_init(Object *obj)
 {
     LowRISCIbexSoCState *s = RISCV_IBEX_SOC(obj);
 
-    object_initialize_child(obj, "cpus", &s->cpus,
-                            sizeof(s->cpus), TYPE_RISCV_HART_ARRAY,
-                            &error_abort, NULL);
+    sysbus_init_child_obj(obj, "cpus", &s->cpus,
+                          sizeof(s->cpus), TYPE_RISCV_HART_ARRAY);
 }
 
 static void riscv_lowrisc_ibex_soc_realize(DeviceState *dev_soc, Error **errp)
diff --git a/hw/riscv/sifive_e.c b/hw/riscv/sifive_e.c
index 472a98970b..d2e2350a4d 100644
--- a/hw/riscv/sifive_e.c
+++ b/hw/riscv/sifive_e.c
@@ -149,9 +149,8 @@ static void riscv_sifive_e_soc_init(Object *obj)
     MachineState *ms = MACHINE(qdev_get_machine());
     SiFiveESoCState *s = RISCV_E_SOC(obj);
 
-    object_initialize_child(obj, "cpus", &s->cpus,
-                            sizeof(s->cpus), TYPE_RISCV_HART_ARRAY,
-                            &error_abort, NULL);
+    sysbus_init_child_obj(obj, "cpus", &s->cpus,
+                          sizeof(s->cpus), TYPE_RISCV_HART_ARRAY);
     object_property_set_int(OBJECT(&s->cpus), ms->smp.cpus, "num-harts",
                             &error_abort);
     sysbus_init_child_obj(obj, "riscv.sifive.e.gpio0",
diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c
index f9fef2be91..d6c6364596 100644
--- a/hw/riscv/sifive_u.c
+++ b/hw/riscv/sifive_u.c
@@ -491,10 +491,9 @@ static void sifive_u_soc_instance_init(Object *obj)
                             &error_abort, NULL);
     qdev_prop_set_uint32(DEVICE(&s->e_cluster), "cluster-id", 0);
 
-    object_initialize_child(OBJECT(&s->e_cluster), "e-cpus",
-                            &s->e_cpus, sizeof(s->e_cpus),
-                            TYPE_RISCV_HART_ARRAY, &error_abort,
-                            NULL);
+    sysbus_init_child_obj(OBJECT(&s->e_cluster), "e-cpus",
+                          &s->e_cpus, sizeof(s->e_cpus),
+                          TYPE_RISCV_HART_ARRAY);
     qdev_prop_set_uint32(DEVICE(&s->e_cpus), "num-harts", 1);
     qdev_prop_set_uint32(DEVICE(&s->e_cpus), "hartid-base", 0);
     qdev_prop_set_string(DEVICE(&s->e_cpus), "cpu-type", SIFIVE_E_CPU);
@@ -504,10 +503,9 @@ static void sifive_u_soc_instance_init(Object *obj)
                             &error_abort, NULL);
     qdev_prop_set_uint32(DEVICE(&s->u_cluster), "cluster-id", 1);
 
-    object_initialize_child(OBJECT(&s->u_cluster), "u-cpus",
-                            &s->u_cpus, sizeof(s->u_cpus),
-                            TYPE_RISCV_HART_ARRAY, &error_abort,
-                            NULL);
+    sysbus_init_child_obj(OBJECT(&s->u_cluster), "u-cpus",
+                          &s->u_cpus, sizeof(s->u_cpus),
+                          TYPE_RISCV_HART_ARRAY);
     qdev_prop_set_uint32(DEVICE(&s->u_cpus), "num-harts", ms->smp.cpus - 1);
     qdev_prop_set_uint32(DEVICE(&s->u_cpus), "hartid-base", 1);
     qdev_prop_set_string(DEVICE(&s->u_cpus), "cpu-type", SIFIVE_U_CPU);
diff --git a/hw/riscv/spike.c b/hw/riscv/spike.c
index 7bbbdb5036..7d1119dcb6 100644
--- a/hw/riscv/spike.c
+++ b/hw/riscv/spike.c
@@ -169,8 +169,8 @@ static void spike_board_init(MachineState *machine)
     unsigned int smp_cpus = machine->smp.cpus;
 
     /* Initialize SOC */
-    object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
-                            TYPE_RISCV_HART_ARRAY, &error_abort, NULL);
+    sysbus_init_child_obj(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
+                          TYPE_RISCV_HART_ARRAY);
     object_property_set_str(OBJECT(&s->soc), machine->cpu_type, "cpu-type",
                             &error_abort);
     object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts",
diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index 4e4c494a70..d569b38d1b 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -485,8 +485,8 @@ static void virt_machine_init(MachineState *machine)
     unsigned int smp_cpus = machine->smp.cpus;
 
     /* Initialize SOC */
-    object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
-                            TYPE_RISCV_HART_ARRAY, &error_abort, NULL);
+    sysbus_init_child_obj(OBJECT(machine), "soc", &s->soc, sizeof(s->soc),
+                          TYPE_RISCV_HART_ARRAY);
     object_property_set_str(OBJECT(&s->soc), machine->cpu_type, "cpu-type",
                             &error_abort);
     object_property_set_int(OBJECT(&s->soc), smp_cpus, "num-harts",
-- 
2.26.2