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Re: [Qemu-devel] [PATCH v2 15/18] target-i386: do not ignore error and f


From: Igor Mammedov
Subject: Re: [Qemu-devel] [PATCH v2 15/18] target-i386: do not ignore error and fix apic parent
Date: Mon, 4 Jul 2016 18:39:21 +0200

On Mon, 4 Jul 2016 17:20:59 +0300
"Michael S. Tsirkin" <address@hidden> wrote:

> On Fri, Jun 24, 2016 at 06:06:03PM +0200, Igor Mammedov wrote:
> > object_property_add_child() silently fails with error that it can't
> > create duplicate propery 'apic' as we already have 'apic' property
> 
> I thought that one was 'apic-id'?
indeed, but with error_abort it prints:
  qemu-system-x86_64: attempt to add duplicate property 'apic' to
  object (type 'qemu64-x86_64-cpu')

I'll try to trace where it comes from.

> 
> > registered for AIPC ID.
> 
> APIC
> 
> > As result generic device_realize puts
> > apic as into unattached container.
> > 
> > As it's programming error, abort on it and fix property name for
> > apic_state to 'lapic', this way apic is a child of cpu instance.
> > 
> > Signed-off-by: Igor Mammedov <address@hidden>
> > ---
> >  target-i386/cpu.c | 5 +++--
> >  1 file changed, 3 insertions(+), 2 deletions(-)
> > 
> > diff --git a/target-i386/cpu.c b/target-i386/cpu.c
> > index ebf4140..04c0b79 100644
> > --- a/target-i386/cpu.c
> > +++ b/target-i386/cpu.c
> > @@ -2763,8 +2763,9 @@ static void x86_cpu_apic_create(X86CPU *cpu,
> > Error **errp) 
> >      cpu->apic_state = DEVICE(object_new(apic_type));
> >  
> > -    object_property_add_child(OBJECT(cpu), "apic",
> > -                              OBJECT(cpu->apic_state), NULL);
> > +    object_property_add_child(OBJECT(cpu), "lapic",
> > +                              OBJECT(cpu->apic_state),
> > &error_abort); +
> >      qdev_prop_set_uint8(cpu->apic_state, "id", cpu->apic_id);
> >      /* TODO: convert to link<> */
> >      apic = APIC_COMMON(cpu->apic_state);
> > -- 
> > 1.8.3.1




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