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vfio_pci: Allow regions to add own capabilities

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VFIO regions already support region capabilities with a limited set of
fields. However the subdriver might have to report to the userspace
additional bits.

This adds an add_capability() hook to vfio_pci_regops.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Alexey Kardashevskiy
2018-12-19 19:52:31 +11:00
committed by Michael Ellerman
parent a15b1883fe
commit c2c0f1cde0
2 changed files with 9 additions and 0 deletions
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3
drivers/vfio/pci/vfio_pci_private.h
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@@ -62,6 +62,9 @@ struct vfio_pci_regops {
int (*mmap)(struct vfio_pci_device *vdev,
struct vfio_pci_region *region,
struct vm_area_struct *vma);
int (*add_capability)(struct vfio_pci_device *vdev,
struct vfio_pci_region *region,
struct vfio_info_cap *caps);
};
struct vfio_pci_region {