On Wed, 2020-09-30 at 19:44 +0200, Paolo Bonzini wrote:
> On 30/09/20 16:31, Maxim Levitsky wrote:
> > > +
> > > +qatomic_set(&dev->realized, value);
> > > +/*
> > > + * Ensure that concurrent users see this update prior to
> > > + * any other changes done by unreali
On 30/09/20 16:31, Maxim Levitsky wrote:
>> +
>> +qatomic_set(&dev->realized, value);
>> +/*
>> + * Ensure that concurrent users see this update prior to
>> + * any other changes done by unrealize.
>> + */
>> +smp_wmb();
>
> I''l probably never fully
On Fri, 2020-09-25 at 13:26 -0400, Paolo Bonzini wrote:
> From: Maxim Levitsky
>
> Some code might race with placement of new devices on a bus.
> We currently first place a (unrealized) device on the bus
> and then realize it.
>
> As a workaround, users that scan the child device list, can
> che
From: Maxim Levitsky
Some code might race with placement of new devices on a bus.
We currently first place a (unrealized) device on the bus
and then realize it.
As a workaround, users that scan the child device list, can
check the realized property to see if it is safe to access such a device.
U
