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:

quoted

On Thu, Jan 14, 2021 at 09:30:02AM +0800, Lu Baolu wrote:

quoted

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