diff options
| author | Alexey Kardashevskiy <aik@ozlabs.ru> | 2018-12-19 11:52:31 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-12-21 08:20:47 +0300 |
| commit | c2c0f1cde0ef56ba5d6f553db73f51e753d7550a (patch) | |
| tree | 975d29fb75d537175d8e110a6616715642529ebc | |
| parent | a15b1883fee11e07e5db7f003a863cc419647e79 (diff) | |
| download | linux-c2c0f1cde0ef56ba5d6f553db73f51e753d7550a.tar.xz | |
vfio_pci: Allow regions to add own capabilities
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>
| -rw-r--r-- | drivers/vfio/pci/vfio_pci.c | 6 | ||||
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_private.h | 3 |
2 files changed, 9 insertions, 0 deletions
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 9a86470f4ed9..0c94204e21f5 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -750,6 +750,12 @@ static long vfio_pci_ioctl(void *device_data, if (ret) return ret; + if (vdev->region[i].ops->add_capability) { + ret = vdev->region[i].ops->add_capability(vdev, + &vdev->region[i], &caps); + if (ret) + return ret; + } } } diff --git a/drivers/vfio/pci/vfio_pci_private.h b/drivers/vfio/pci/vfio_pci_private.h index 86aab05d3d46..93c1738dae11 100644 --- a/drivers/vfio/pci/vfio_pci_private.h +++ b/drivers/vfio/pci/vfio_pci_private.h @@ -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 { |