• Alex Williamson's avatar
    kvm: Add VFIO device · ec53500f
    Alex Williamson authored
    
    
    So far we've succeeded at making KVM and VFIO mostly unaware of each
    other, but areas are cropping up where a connection beyond eventfds
    and irqfds needs to be made.  This patch introduces a KVM-VFIO device
    that is meant to be a gateway for such interaction.  The user creates
    the device and can add and remove VFIO groups to it via file
    descriptors.  When a group is added, KVM verifies the group is valid
    and gets a reference to it via the VFIO external user interface.
    
    Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
    Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
    ec53500f