Re: [RFC PATCH v3 1/2] iommu: Add capability IOMMU_CAP_VIOMMU

Leon Romanovsky
2021-01-15T06:32:03Z

On Fri, Jan 15, 2021 at 07:49:47AM +0800, Lu Baolu wrote:
> Hi Leon,
>
> On 1/14/21 9:26 PM, Leon Romanovsky wrote:
> > On Thu, Jan 14, 2021 at 09:30:02AM +0800, Lu Baolu wrote:
> > > Some vendor IOMMU drivers are able to declare that it is running in a VM
> > > context. This is very valuable for the features that only want to be
> > > supported on bare metal. Add a capability bit so that it could be used.
> >
> > And how is it used? Who and how will set it?
>
> Use the existing iommu_capable(). I should add more descriptions about
> who and how to use it.

I want to see the code that sets this capability.

Thanks