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vfio-pci: Add device request interface

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Userspace can opt to receive a device request notification,
indicating that the device should be released.  This is setup
the same way as the error IRQ and also supports eventfd signaling.
Future support may forcefully remove the device from the user if
the request is ignored.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Alex Williamson 2015-02-06 15:05:08 -07:00
commit 6140a8f562
4 changed files with 38 additions and 1 deletions
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include/uapi/linux/vfio.h
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@ -333,6 +333,7 @@ enum {
VFIO_PCI_MSI_IRQ_INDEX,
VFIO_PCI_MSIX_IRQ_INDEX,
VFIO_PCI_ERR_IRQ_INDEX,
VFIO_PCI_REQ_IRQ_INDEX,
VFIO_PCI_NUM_IRQS
};