This series supports DMA device to use vfio in async vhost. The first patch extends the capability of current vfio dma mapping API to allow partial unmapping for adjacent memory if the platform does not support partial unmapping. The second patch involves the IOMMU programming for guest memory in async vhost.
v2: * Added rte_errno filtering for some devices bound in the kernel driver. * Added a flag to check the status of region mapping. * Fixed one typo. Xuan Ding (2): vfio: allow partially unmapping adjacent memory vhost: enable IOMMU for async vhost lib/eal/linux/eal_vfio.c | 338 ++++++++++++++++++++++++++------------- lib/vhost/rte_vhost.h | 1 + lib/vhost/vhost_user.c | 57 ++++++- 3 files changed, 285 insertions(+), 111 deletions(-) -- 2.17.1
