Re: [PATCH v7] Add udmabuf misc device

[Gert Wollny]

Am Montag, den 10.09.2018, 12:53 +0200 schrieb Gerd Hoffmann:
> 
> By default qemu doesn't use memfd for backing storage, you have to
> explicitly configure qemu that way (see qemu commit log of the test
> branch):
> 
>     qemu-system-x86_64 -m 2G
>             -object memory-backend-memfd,id=ram,size=2G
>             -numa node,memdev=ram"

Thanks, but that doesn't seem to help. Are there any host kernel
configuration parameters or features that I should set (apart from
enabling udmabuf)? 

Best, 
Gert