Re: [PATCH 2/2] iommu/ioasid: Remove custom IOASID allocator

[Jason Gunthorpe]

On Tue, Feb 14, 2023 at 06:26:25AM +0000, Tian, Kevin wrote:
> > From: Jason Gunthorpe <jgg@xxxxxxxxxx>
> > Sent: Tuesday, February 14, 2023 7:46 AM
> > 
> > > > So if a cgroup comes it is just a matter of putting charges in the
> > > > right place which is auditable by looking at calls to attach pasid
> > > > functions.
> > > shouldn't we charge cg during allocation? Or it might be too early for
> > > iommufd so we have to wait  until attach?
> > 
> > We need to sort this all out. I would expect that iommufd will have an
> > allocation API.
> > 
> 
> yes. 
> 
> btw presumably iommu_global_pasid_ida should be move to iommu.c
> since it will be used beyond sva.

Yeah, maybe, I'd think about moving it when we get patches to use it
more than SVA.

Jason