Re: [PATCH 5/8] xen/gntdev: Add initial support for dma-buf UAPI

On 05/25/2018 06:33 PM, Oleksandr Andrushchenko wrote:

diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index 3431fe210624..eaf63a2c7ae6 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -152,6 +152,16 @@ config XEN_GNTDEV help Allows userspace processes to use grants.

+config XEN_GNTDEV_DMABUF

• bool "Add support for dma-buf grant access device driver extension"
• depends on XEN_GNTDEV && XEN_GRANT_DMA_ALLOC

This must be "depends on XEN_GNTDEV && XEN_GRANT_DMA_ALLOC && *DMA_SHARED_BUFFER*"

• help

•  Allows userspace processes and kernel modules to use Xen backed
  

•  dma-buf implementation. With this extension grant references to
  

•  the pages of an imported dma-buf can be exported for other domain
  

•  use and grant references coming from a foreign domain can be
  

•  converted into a local dma-buf for local export.