Re: [PATCH v5 03/19] vfio: Accept vfio device file in the KVM facing kAPI

Jason Gunthorpe
2023-02-27T18:47:16Z

On Mon, Feb 27, 2023 at 03:11:19AM -0800, Yi Liu wrote:
> This makes the vfio file kAPIs to accepte vfio device files, also a
> preparation for vfio device cdev support.
>
> For the kvm set with vfio device file, kvm pointer is stored in struct
> vfio_device_file, and use kvm_ref_lock to protect kvm set and kvm
> pointer usage within VFIO. This kvm pointer will be set to vfio_device
> after device file is bound to iommufd in the cdev path.
>
> Signed-off-by: Yi Liu <yi.l.liu@intel.com>
> Reviewed-by: Kevin Tian <kevin.tian@intel.com>
> ---
> drivers/vfio/vfio.h | 2 ++
> drivers/vfio/vfio_main.c | 42 +++++++++++++++++++++++++++++++++++++---
> 2 files changed, 41 insertions(+), 3 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

Jason