[PATCH] dma/idxd: add support for multi-process when using VFIO

Burakov, Anatoly anatoly.burakov at intel.com
Wed May 17 12:17:07 CEST 2023


On 5/15/2023 5:29 PM, Bruce Richardson wrote:
> When using vfio-pci/uio for hardware access, we need to avoid
> reinitializing the hardware when mapping from a secondary process.
> Instead, just configure the function pointers and reuse the data
> mappings from the primary process.
> 
> With the code change, update driver doc with the information that
> vfio-pci can be used for multi-process support, and explicitly state the
> limitation on multi-process support being unavailable when using idxd
> kernel driver.
> 
> Signed-off-by: Bruce Richardson <bruce.richardson at intel.com>
> ---

 From multiprocess perspective,

Acked-by: Anatoly Burakov <anatoly.burakov at intel.com>

-- 
Thanks,
Anatoly



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