mbox series

[v7,0/2] Support IOMMU for DMA device

Message ID 20211011075942.38180-1-xuan.ding@intel.com (mailing list archive)
Headers
Series Support IOMMU for DMA device |

Message

Ding, Xuan Oct. 11, 2021, 7:59 a.m. UTC 
  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(-)

Comments

Maxime Coquelin Oct. 21, 2021, 12:33 p.m. UTC | #1 
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