Re: [dpdk-dev] [PATCH v7 0/2] Support IOMMU for DMA device

[Maxime Coquelin <maxime.coquelin@redhat.com>]

On 10/11/21 09:59, Xuan Ding wrote:
> 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.
> 
> v7:
> * Fix an operator error.
> 
> v6:
> * Fix a potential memory leak.
> 
> v5:
> * Fix issue of a pointer be freed early.
> 
> v4:
> * Fix a format issue.
> 
> v3:
> * Move the async_map_status flag to virtio_net structure to avoid
> ABI breaking.
> 
> v2:
> * Add rte_errno filtering for some devices bound in the kernel driver.
> * Add a flag to check the status of region mapping.
> * Fix 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/vhost.h        |   4 +
>   lib/vhost/vhost_user.c   | 116 +++++++++++++-
>   3 files changed, 346 insertions(+), 112 deletions(-)
> 


Applied to dpdk-next-virtio/main.

Thanks,
Maxime