Re: [PATCH v3 1/2] vfio/type1: Simplify bus_type determination

2022-06-30 Thread Alex Williamson
On Fri, 24 Jun 2022 18:51:44 +0100 Robin Murphy wrote: > Since IOMMU groups are mandatory for drivers to support, it stands to > reason that any device which has been successfully added to a group > must be on a bus supported by that IOMMU driver, and therefore a domain > viable for any device in

Re: [PATCH v3 1/2] vfio/type1: Simplify bus_type determination

2022-06-27 Thread Robin Murphy
On 2022-06-27 20:21, Alex Williamson wrote: On Fri, 24 Jun 2022 18:51:44 +0100 Robin Murphy wrote: Since IOMMU groups are mandatory for drivers to support, it stands to reason that any device which has been successfully added to a group must be on a bus supported by that IOMMU driver, and ther

Re: [PATCH v3 1/2] vfio/type1: Simplify bus_type determination

2022-06-27 Thread Alex Williamson
On Fri, 24 Jun 2022 18:51:44 +0100 Robin Murphy wrote: > Since IOMMU groups are mandatory for drivers to support, it stands to > reason that any device which has been successfully added to a group > must be on a bus supported by that IOMMU driver, and therefore a domain > viable for any device in

RE: [PATCH v3 1/2] vfio/type1: Simplify bus_type determination

2022-06-27 Thread Tian, Kevin
> From: Robin Murphy > Sent: Saturday, June 25, 2022 1:52 AM > > Since IOMMU groups are mandatory for drivers to support, it stands to > reason that any device which has been successfully added to a group > must be on a bus supported by that IOMMU driver, and therefore a domain > viable for any de

Re: [PATCH v3 1/2] vfio/type1: Simplify bus_type determination

2022-06-24 Thread Jason Gunthorpe via iommu
On Fri, Jun 24, 2022 at 06:51:44PM +0100, Robin Murphy wrote: > Since IOMMU groups are mandatory for drivers to support, it stands to > reason that any device which has been successfully added to a group > must be on a bus supported by that IOMMU driver, and therefore a domain > viable for any devi