[PATCH v4 2/4] hw/i386: Attach CPUs to machine

["Philippe Mathieu-Daudé via" <qemu-devel@nongnu.org>]

Previously CPUs were exposed in the QOM tree at a path

  /machine/unattached/device[nn]

where the 'nn' of the first CPU is usually zero, but can
vary depending on what devices were already created.

With this change the CPUs are now at

  /machine/cpu[nn]

where the 'nn' of the first CPU is always zero.

Note: This (intentionally) breaks compatibility with current
libvirt code that looks for "/machine/unattached/device[0]"
in the assumption it is the first CPU.

Cc: libvir-list@redhat.com
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
 hw/i386/x86.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/hw/i386/x86.c b/hw/i386/x86.c
index b84840a1bb9..50bf249c700 100644
--- a/hw/i386/x86.c
+++ b/hw/i386/x86.c
@@ -108,6 +108,7 @@ void x86_cpu_new(X86MachineState *x86ms, int64_t apic_id, Error **errp)
 {
     Object *cpu = object_new(MACHINE(x86ms)->cpu_type);
 
+    object_property_add_child(OBJECT(x86ms), "cpu[*]", OBJECT(cpu));
     if (!object_property_set_uint(cpu, "apic-id", apic_id, errp)) {
         goto out;
     }
-- 
2.34.1