Re: [Xen-devel] [PATCH v1 0/2] libxl: add PV display device driver interface

[Oleksandr Grytsov <al1img@xxxxxxxxx>]

On Fri, May 12, 2017 at 3:12 PM, Oleksandr Grytsov <al1img@xxxxxxxxx> wrote:
> On Thu, May 4, 2017 at 11:49 AM, Oleksandr Grytsov <al1img@xxxxxxxxx> wrote:
>> Hi All,
>>
>> Here is configuration proposal with connector (surface) id:
>>
>> 1. Configuration file:
>> vdispl = [ 'backend=0, devId=0, beAlloc=1,
>> connectors=id0:800x600;id1:1024x768' ]
>>
>>     * backend - backend domain id or name (if different from dom 0);
>>     * devId - device id (if different from 0);
>>     * beAlloc - indicated where to allocate buffers (according to protocol 
>> [1]);
>>     * connectors - list of available connectors: each connector
>> description consists of
>>       string id and resolution separated by colon:
>>         * id0, id1 - unique connector id. It is string which may contain:
>>             - uppercase [A-Z] and lowercase [a-z] English alphabet 
>> characters;
>>             - digits 0-9;
>>             - special symbols except: space : ; , ' "
>>         * 800x600, 1024x768 - connectors resolutions.
>>
>> 2. libxl_types.idl:
>>
>> libxl_connector_param = Struct("connector_param", [
>>     ("id", string),
>>     ("width", uint32),
>>     ("height", uint32)
>>     ])
>>
>> libxl_device_vdispl = Struct("device_vdispl", [
>>     ("backend_domid", libxl_domid),
>>     ("backend_domname", string),
>>     ("devid", libxl_devid),
>>     ("be_alloc", bool),
>>     ("connectors", Array(libxl_connector_param, "num_connectors"))
>>     ])
>>
>> libxl_connectorinfo = Struct("connectorinfo", [
>>     ("id", string),
>>     ("width", uint32),
>>     ("height", uint32),
>>     ("evtch", integer),
>>     ("rref", integer),
>>     ], dir=DIR_OUT)
>>
>> libxl_vdisplinfo = Struct("vdisplinfo", [
>>     ("backend", string),
>>     ("backend_id", uint32),
>>     ("frontend", string),
>>     ("frontend_id", uint32),
>>     ("devid", libxl_devid),
>>     ("state", integer),
>>     ("be_alloc", bool),
>>     ("connectors", Array(libxl_connectorinfo, "num_connectors"))
>>     ], dir=DIR_OUT)
>>
>> 3. xl command line:
>>
>>     { "vdispl-attach",
>>       &main_vdisplattach, 1, 1,
>>       "Create a new virtual display device",
>>       "<Domain> [devId=<Device>] [backend=<BackDomain>] 
>> [beAlloc=<BackAlloc>]"\
>>       " [connectors=<Connectors>]",
>>       "    BackAlloc - set to 1 to allow backend allocated display buffers\n"
>>       "    Connectors - list of connector's description in ID:WxH format,\n"
>>       "    Where: ID - unique connector ID, W - connector width, H -
>> connector height:\n"
>>       "         id0:800x600;id1:1024x768"
>>     },
>>     { "vdispl-list",
>>       &main_vdispllist, 0, 0,
>>       "List virtual display devices for a domain",
>>       "<Domain(s)>",
>>     },
>>     { "vdispl-detach",
>>       &main_vdispldetach, 0, 1,
>>       "Destroy a domain's virtual display device",
>>       "<Domain> <DevId>",
>>     },
>
> Ping
>
> --
> Best Regards,
> Oleksandr Grytsov.

Hi All,

Any objections about the configuration?

If not I will start working on implementation.

Thanks.

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