[PATCH kernel v2 09/11] vfio iommu: Add helpers to (un)register blocking notifiers per group

[Alexey Kardashevskiy]

On 21/12/16 17:04, David Gibson wrote:
> On Sun, Dec 18, 2016 at 12:28:58PM +1100, Alexey Kardashevskiy wrote:
>> c086de81 "vfio iommu: Add blocking notifier to notify DMA_UNMAP" added
>> notifiers to a VFIO group. However even though the code underneath
>> uses groups, the API takes device struct pointers.
>>
>> This adds helpers which do the same thing but take IOMMU groups instead.
>>
>> This adds vfio_iommu_group_set_kvm() which is a wrapper on top of
>> vfio_group_set_kvm() but also takes an iommu_group.
>>
>> Signed-off-by: Alexey Kardashevskiy <aik at ozlabs.ru>
> 
> Adding a second interface in parallel seems dubious.
> 
> Should the existing interface just be replaced with this one?
> 
> Or can the existing interface be re-implemented in terms of this one?

imho this should have been done in the first place but since Alex and I
came to a conclusion that this does not simplify anything in my patchset
(rather the opposite), I am not going to push it further now.

09/11, 10/11, 11/11 from this patchset are superseded by:
[PATCH kernel v3] KVM: PPC: Add in-kernel acceleration for VFIO


-- 
Alexey

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