Re: [Qemu-devel] [PATCH 1/8] qapi: fix NULL pointer dereference

[Paolo Bonzini]

On 12/16/2011 03:56 PM, Anthony Liguori wrote:
> I'd really prefer to stick to non-nullable strings as there is no
> obvious way to specify NULL in command line options.

We can leave it as the default.  A property with a non-null default is 
implicitly not nullable, which actually makes some sense.  We can model 
this in get_string/set_string too.

> What are the uses of null in qdev string properties?  I know you can't
> set a string to null since parse() doesn't have a null syntax.  So we're
> really just talking about an uninitialized state, right?

Yes.  No ROM BAR is an example of a NULL string property.

Paolo