Hugepage migration

[Stephen Hemminger]

On Tue, 30 May 2023 16:53:14 +0300
Baruch Even <baruch at weka.io> wrote:

> > what kernel driver was being used for the device I/O part? Was it a UIO
> > based driver or "vfio-pci"? When using vfio-pci and configuring IOMMU
> > mappings, the pages mapped should be pinned by the kernel, I would have
> > thought, since the kernel knows they are being used by devices.
> >
> > /Bruce
> >  
> 
> This was using igb_uio on an AWS instance with their ena driver.
> 
> Baruch

Try VFIO, using igb_uio is effectively and out tree driver and the kernel
maintainers are unlikely to give you much support.