Re: [RFC PATCH 3/6] iommu/amd: Introduce Guest-ID struct amd_iommu_vminfo

[Suthikulpanit, Suravee]

Hi Kevin

On 12/15/2023 2:35 PM, Tian, Kevin wrote:
> > From: Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>
> > Sent: Wednesday, December 13, 2023 12:02 AM
> >
> > AMD HW-vIOMMU feature requires IOMMU driver to specify a unique 16-bit
> > Guest ID (GID) for each VM. This ID is used to index into various
> > data structures for configuring the hardware.
> >
> > Introduce amd_iommu_vminfo_hash hashtable to store per-vm
> > configuration,
> > which uses 16-bit GID as a hash key along with helper functions.
>
> somehow it's unclear to me whether this series is only for hw
> supporting vf or broader hw supporting nested capability. for
> the latter case is GID still necessary?

I am restructuring the series and might be moving GID stuff until later 
when introduce broader hw support for AMD vIOMMU.

Suravee