# Re: \[PATCH 15/17\] iommu: remove DOMAIN\_ATTR\_NESTING

- From: Christoph Hellwig \<hch@lst.de\>
- Date: 2021-03-14 15:59:00 
- List: linuxppc-dev
- Page: https://ratatoskr.run/linuxppc-dev/2021/03/8286035
- Thread: https://ratatoskr.run/kvm/2021/03/8285616/t.md

```text
On Sun, Mar 14, 2021 at 11:44:52AM +0100, Auger Eric wrote:
> As mentionned by Robin, there are series planning to use
> DOMAIN_ATTR_NESTING to get info about the nested caps of the iommu (ARM
> and Intel):
> 
> [Patch v8 00/10] vfio: expose virtual Shared Virtual Addressing to VMs
> patches 1, 2, 3
> 
> Is the plan to introduce a new domain_get_nesting_info ops then?

The plan as usual would be to add it the series adding that support.
Not sure what the merge plans are - if the series is ready to be
merged I could rebase on top of it, otherwise that series will need
to add the method.
```