Re: [PATCH V2] xen/arm: dm: Drop XEN_DMOP_get_ioreq_server_info from supported

[Julien Grall <julien@xxxxxxx>]

Hi,

On 02/09/2025 11:18, Orzel, Michal wrote:
> On 02/09/2025 11:49, Oleksandr Tyshchenko wrote:
> > The said sub-op is not supported on Arm, since it:
> >   - does not support the buffered emulation (so bufioreq_port/bufioreq_gfn
> >     cannot be returned), please refer to ioreq_server_create()
> >   - does not support "legacy" mechanism of mapping IOREQ Server
> >     magic pages (so ioreq_gfn/bufioreq_gfn cannot be returned), please
> >     refer to arch_ioreq_server_map_pages(). On Arm, only the Acquire
> >     Resource infrastructure is used to query and map the IOREQ Server pages.
> >
> > Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx>
> Reviewed-by: Michal Orzel <michal.orzel@xxxxxxx>
>
> Could we perhaps add a Fixes tag here pointing to the commit introducing these
> DM ops and thus add this patch for this release? Not sure what others think.
Fixes usually implies a bug and I don't see what bug we are solving. In 
fact, I don't understand why we are trying to remove the subop...
Cheers,

--
Julien Grall