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Re: [Qemu-devel] [PATCH 2/3] s390x/css: advertise unrestricted cssids


From: Halil Pasic
Subject: Re: [Qemu-devel] [PATCH 2/3] s390x/css: advertise unrestricted cssids
Date: Wed, 6 Dec 2017 11:50:26 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.4.0


On 12/05/2017 06:28 PM, Shalini Chellathurai Saroja wrote:
> 
> 
> On 12/04/2017 04:07 PM, Halil Pasic wrote:
>>
>> On 12/04/2017 12:15 PM, Cornelia Huck wrote:
>>> On Fri,  1 Dec 2017 15:31:35 +0100
>>> Halil Pasic <address@hidden> wrote:
>>>
>>>> Let us advertise the changes introduced by "s390x/css: unrestrict cssids"
>>>> to the management software (so it can tell are cssids unrestricted or
>>>> restricted).
>>>>
>>>> Signed-off-by: Halil Pasic <address@hidden>
>>>> ---
>>>>
>>>> Boris says having the property on the virtual-css-bridge is good form
>>>> Libvirt PoV. @Shalini: could you verify that things work out fine
>>>> (provided we get at least a preliminary blessing from Connie).
>>>>
>>>> Consider squashing into "s390x/css: unrestrict cssids".
>>>> ---
>>>>   hw/s390x/css-bridge.c | 11 +++++++++++
>>>>   1 file changed, 11 insertions(+)
>>>>
>>>> diff --git a/hw/s390x/css-bridge.c b/hw/s390x/css-bridge.c
>>>> index c4a9735d71..c7e8998680 100644
>>>> --- a/hw/s390x/css-bridge.c
>>>> +++ b/hw/s390x/css-bridge.c
>>>> @@ -123,6 +123,11 @@ static Property virtual_css_bridge_properties[] = {
>>>>       DEFINE_PROP_END_OF_LIST(),
>>>>   };
>>>>   +static bool prop_get_true(Object *obj, Error **errp)
>>>> +{
>>>> +    return true;
>>>> +}
>>>> +
>>>>   static void virtual_css_bridge_class_init(ObjectClass *klass, void *data)
>>>>   {
>>>>       HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
>>>> @@ -131,6 +136,12 @@ static void virtual_css_bridge_class_init(ObjectClass 
>>>> *klass, void *data)
>>>>       hc->unplug = ccw_device_unplug;
>>>>       set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
>>>>       dc->props = virtual_css_bridge_properties;
>>>> +    object_class_property_add_bool(klass, "cssid-unrestricted",
>>>> +                                   prop_get_true, NULL, NULL);
>>>> +    object_class_property_set_description(klass, "cssid-unrestricted",
>>>> +            "A css device can use any  cssid, regardless whether virtual"
>>> extra space -----------------------------^
>>>
>> Nod.
>>
>>>> +            " or not (read only, always true)",
>> Do we need "." here ----------------------------^ ?
>>
>>>> +            NULL);
>>>>   }
>>>>     static const TypeInfo virtual_css_bridge_info = {
>>> Looks reasonable. If this works as expected, I'll squash it into the
>>> previous patch.
>>>
>> I've just asked Shalini to verify the libvirt perspective.
> 
> Verified. The patch works as expected.
> 

Many thanks! I intend to address the remaining issues of the series and
spin a v2 today.

Halil




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