Re: [PATCH v2 1/1] iommu/vt-d: Add Kconfig option to enable/disable scalable mode

[Qian Cai]

> On Nov 11, 2019, at 12:23 AM, Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx> wrote:
> 
> The scalable mode is defined in VT-d 3.0. The scalable mode capability
> could be checked by reading /sys/devices/virtual/iommu/dmar*/intel-
> iommu/ecap. It's currently not friendly for reading. You need to decode
> it according to the spec.

This looks like some perfect information to put in the Kconfig description.