Messages in this thread | | | Subject | Re: [PATCH v2 0/7] iommu/vt-d: Add page request draining support | From | Lu Baolu <> | Date | Wed, 15 Apr 2020 16:25:56 +0800 |
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Hi Kevin,
On 2020/4/15 15:57, Tian, Kevin wrote: >> From: Lu Baolu<baolu.lu@linux.intel.com> >> 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
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