Re: [PATCH v3 03/15] vfio: Accept vfio device file in the driver facing kAPI

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On Fri, Feb 17, 2023 at 10:55:08AM +0000, Liu, Yi L wrote:

> One more thinking on this. For a single device, my above reply is true.
> The device should have been fully-opened when its GET_PCI_HOT_RESET_INFO
> and HOT_RESET path have been unblocked. However, when there are
> multiple devices that have been affected by the hotreset. User may only
> have one device that is fully opened while others are not yet. In such case,
> existing vfio_file_is_valid() is not enough. Shall we have another API for
> this purpose? E.g. if it's cdev fd, then the new API return true only when
> the device is fully opened. Any suggestion here?

I think what I heard is you need two APIs, one for pci and one for KVM
and the PCI one requires binding to succeed.

Jason



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