[libvirt] [PATCH 2/2] qemu: add usb-serial support

[Guannan Ren]

On 01/05/2013 04:24 AM, Eric Blake wrote:
> Overall it looks reasonable, but depending on the answer to whether we
> should just always output type='isa-serial', you may have a v2 to submit.
>

      As attribute 'type' is optional, my initial thoughts is that If 
type='value' is given
    explicitly on input, then we print it out on output too, if no type 
is given on input,
    we don't print it out on output either. Backward compatibility and 
being more flexible.

      There are indeed a number of testcases we need to modify if we 
always output
    type='isa-serial',  but not a big workload.

    Guannan