Re: [PATCH v2 0/7] iommu/vt-d: Add page request draining support

[Lu Baolu]

Hi Kevin,

On 2020/4/15 15:57, Tian, Kevin wrote:
> > From: Lu Baolu<baolu.lu@xxxxxxxxxxxxxxx>
> > Sent: Wednesday, April 15, 2020 1:26 PM
> >
> > When a PASID is stopped or terminated, there can be pending PRQs
> > (requests that haven't received responses) in the software and
> > remapping hardware. The pending page requests must be drained
> > so that the pasid could be reused. The register level interface
> > for page request draining is defined in 7.11 of the VT-d spec.
> > This series adds the support for page requests draining.
> 7.11 doesn't include register-level interface. It just talks about
> the general requirements on system software, endpoint device
> and its driver.

I will replace this with "spec 7.10 specifies the software steps to
drain page requests and response".

Best regards,
baolu