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