Re: [PATCH 3/3] vhost: device IOTLB API

2016-06-22 Thread kbuild test robot
Hi, [auto build test ERROR on next-20160622] [also build test ERROR on v4.7-rc4] [cannot apply to vhost/linux-next v4.7-rc4 v4.7-rc3 v4.7-rc2] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Jaso

[PATCH 3/3] vhost: device IOTLB API

2016-06-22 Thread Jason Wang
This patch tries to implement an device IOTLB for vhost. This could be used with for co-operation with userspace(qemu) implementation of DMA remapping. The idea is simple, cache the translation in a software device IOTLB (which was implemented as interval tree) in vhost and use vhost_net file desc