Commit c2c0f1cd authored by Alexey Kardashevskiy's avatar Alexey Kardashevskiy Committed by Michael Ellerman

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: default avatarAlexey Kardashevskiy <aik@ozlabs.ru>
Acked-by: default avatarAlex Williamson <alex.williamson@redhat.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
parent a15b1883
...@@ -750,6 +750,12 @@ static long vfio_pci_ioctl(void *device_data, ...@@ -750,6 +750,12 @@ static long vfio_pci_ioctl(void *device_data,
if (ret) if (ret)
return 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;
}
} }
} }
......
...@@ -62,6 +62,9 @@ struct vfio_pci_regops { ...@@ -62,6 +62,9 @@ struct vfio_pci_regops {
int (*mmap)(struct vfio_pci_device *vdev, int (*mmap)(struct vfio_pci_device *vdev,
struct vfio_pci_region *region, struct vfio_pci_region *region,
struct vm_area_struct *vma); 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 { struct vfio_pci_region {
......
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