Re: [PATCH v14 10/11] qapi/s390/cpu topology: POLARITY_CHANGE qapi event

[Thomas Huth]

On 18/01/2023 18.09, Pierre Morel wrote:
> On 1/12/23 12:52, Thomas Huth wrote:
> > On 05/01/2023 15.53, Pierre Morel wrote:
...>>> +#
> > > +# Emitted when the guest asks to change the polarity.
> > > +#
> > > +# @polarity: polarity specified by the guest
> >
> > Please elaborate: Where does the value come from (the PTF instruction)? 
> > Which values are possible?
>
> Yes what about:
>
> # @polarity: the guest can specify with the PTF instruction a horizontal
> #            or a vertical polarity.

Maybe something like: "The guest can tell the host (via the PTF instruction) 
whether a CPU should have horizontal or vertical polarity." ?

> #         On horizontal polarity the host is expected to provision
> #            the vCPU equally.

Maybe: "all vCPUs equally" ?
Or: "each vCPU equally" ?

> #            On vertical polarity the host can provision each vCPU
> #            differently
> #            The guest can get information on the provisioning with
> #            the STSI(15) instruction.

 Thomas