Re: [PATCH 2/3] iommu/vt-d: Parse SATC reporting structure

[Lu Baolu]

Hi Ashok,

On 2/3/21 12:41 AM, Raj, Ashok wrote:
> On Tue, Feb 02, 2021 at 12:40:56PM +0800, Lu Baolu wrote:
> > From: Yian Chen <yian.chen@xxxxxxxxx>
> >
> > Software should parse every SATC table and all devices in the tables
> > reported by the BIOS and keep the information in kernel list for further
> > SATC policy deployment.
> The last part seems bit vague? Are you trying to imply,
>
> if kernel is booted with noats for instance, a device listed in SATC table
> as "requires ATS" will fail to load?
>
> Otherwise its not clear what the policy enforcement means.

Yes. This is a bit vague. The ATS policy is out of the purpose of this
patch. It only parses the table and keep the device list for further
reference.

Best regards,
baolu