[dpdk-dev] [PATCH v2 07/16] Add support for VFIO interrupts, add VFIO header

[Thomas Monjalon]

2014-05-27 14:29, Burakov, Anatoly:
> > > I don't know if there is something defined in a Linux header which could
> > > help to check if VFIO is supported. But in general, it's better to check
> > > for a macro belonging to the feature instead of checking kernel version.
> > 
> > Not sure VFIO defines any macros anywhere, but I'll look into it, thanks.
> 
> There probably isn't. At least I don't see anything in commit log. So unless
> there's a way to get config options from kernel at compile-time in
> userspace code, I don't think we can do anything else than kernel version
> check.

Isn't it sufficient to check VFIO_API_VERSION?

-- 
Thomas