Re: [Qemu-devel] [PATCH] vfio: Add an ioctl to reset the device

[Alex Williamson]

On Tue, 2011-04-19 at 15:07 -0700, Chris Wright wrote:
> * Alex Williamson (address@hidden) wrote:
> > When using VFIO to assign a device to a guest, we want to make sure
> > the device is quiesced on VM reset to stop all DMA within the guest
> > mapped memory.  Add an ioctl which just calls pci_reset_function()
> > and returns whether it succeeds.
> 
> Shouldn't there be a reset when binding/unbinding vfio to/from a pci
> device?

There's already one when the /dev/vfioX file is opened, we should add
another on release, and probably add the same PCI save state store/load
that I'm proposing for KVM across those.  Thanks,

Alex