RE: [PATCH 01/13] vfio: Allocate per device file structure

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> From: Liu, Yi L <yi.l.liu@xxxxxxxxx>
> Sent: Tuesday, January 17, 2023 9:50 PM
> 
> This is preparation for adding vfio device cdev support. vfio device
> cdev requires:
> 1) a per device file memory to store the kvm pointer set by KVM. It will
>    be propagated to vfio_device:kvm after the device cdev file is bound
>    to an iommufd
> 2) a mechanism to block device access through device cdev fd before it
>    is bound to an iommufd
> 
> To address above requirements, this adds a per device file structure
> named vfio_device_file. For now, it's only a wrapper of struct vfio_device
> pointer. Other fields will be added to this per file structure in future
> commits.
> 
> Signed-off-by: Yi Liu <yi.l.liu@xxxxxxxxx>

Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>




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