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Re: [Xen-devel] [PATCH 02/10 v2] xen/arm: vpl011: Add new vuart domctl interface to setup pfn and evtchn

>>> On 02.05.17 at 11:58, <bhupinder.thakur@xxxxxxxxxx> wrote:
>>> +    case XEN_DOMCTL_vuart_op:
>>> +        ret = -EOPNOTSUPP;
>>> +        break;
>> There should be no need for such an addition.
> This check was added to return a failure if user tries to call the
> vuart domctl in case of x86 (wrong user configuration). If this check
> is not there will it not end up calling the default case:
> iommu_do_domctl()?

Yes, it will, like for any other unknown/unsupported domctls. The
function is prepared to deal with that.


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