Re: [PATCH kernel 0/3] powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains

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On Fri, Sep 02, 2022 at 05:33:30PM +1000, Michael Ellerman wrote:
> Jason Gunthorpe <jgg@xxxxxxxxxx> writes:
> > On Thu, Jul 14, 2022 at 06:18:19PM +1000, Alexey Kardashevskiy wrote:
> >> Here is another take on iommu_ops on POWER to make VFIO work
> >> again on POWERPC64.
> >> 
> >> The tree with all prerequisites is here:
> >> https://github.com/aik/linux/tree/kvm-fixes-wip
> >> 
> >> The previous discussion is here:
> >> https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20220707135552.3688927-1-aik@xxxxxxxxx/
> >> https://patchwork.ozlabs.org/project/kvm-ppc/patch/20220701061751.1955857-1-aik@xxxxxxxxx/
> >> 
> >> Please comment. Thanks.
> >>
> >> 
> >> 
> >> Alexey Kardashevskiy (3):
> >>   powerpc/iommu: Add "borrowing" iommu_table_group_ops
> >>   powerpc/pci_64: Init pcibios subsys a bit later
> >>   powerpc/iommu: Add iommu_ops to report capabilities and allow blocking
> >>     domains
> >
> > It has been a little while - and I think this series is still badly
> > needed by powerpc, right?
> 
> Your comments on patch 3 left me with the impression it needed a respin,
> but maybe I misread that.

It would be nice, but I understand Alexey will not work on it anymore,
so I wouldn't object to as-is

> Alexey's reply that it needed testing also made me think it wasn't
> ready to pick up.

Well, if so, someone still needs to finish this work. But I think he
tested it, he fixed things that could have only been found by
testing..

Jason



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