Re: [PATCH v2 5/7] iommu/vt-d: Save prq descriptors in an internal list

2020-04-16 Thread Lu Baolu
Hi Kevin, On 2020/4/16 9:46, Lu Baolu wrote: On 2020/4/15 17:30, Tian, Kevin wrote: From: Lu Baolu Sent: Wednesday, April 15, 2020 1:26 PM Currently, the page request interrupt thread handles the page requests in the queue in this way: - Clear PPR bit to ensure new interrupt could come in; -

Re: [PATCH v2 5/7] iommu/vt-d: Save prq descriptors in an internal list

2020-04-15 Thread Lu Baolu
On 2020/4/15 17:30, Tian, Kevin wrote: From: Lu Baolu Sent: Wednesday, April 15, 2020 1:26 PM Currently, the page request interrupt thread handles the page requests in the queue in this way: - Clear PPR bit to ensure new interrupt could come in; - Read and record the head and tail registers; -

RE: [PATCH v2 5/7] iommu/vt-d: Save prq descriptors in an internal list

2020-04-15 Thread Tian, Kevin
> From: Lu Baolu > Sent: Wednesday, April 15, 2020 1:26 PM > > Currently, the page request interrupt thread handles the page > requests in the queue in this way: > > - Clear PPR bit to ensure new interrupt could come in; > - Read and record the head and tail registers; > - Handle all