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| author | Jason Gunthorpe <jgg@nvidia.com> | 2022-02-24 15:20:17 +0100 |
|---|---|---|
| committer | Leon Romanovsky <leonro@nvidia.com> | 2022-03-03 11:54:43 +0100 |
| commit | 445ad495f0ff71553693e6a2a9d7a3bc6917ca36 (patch) | |
| tree | b6151cc06f329ac74348e2b11d78fa00d7da5248 /drivers/vfio/pci/vfio_pci.c | |
| parent | net/mlx5: Add migration commands definitions (diff) | |
| download | linux-445ad495f0ff71553693e6a2a9d7a3bc6917ca36.tar.xz linux-445ad495f0ff71553693e6a2a9d7a3bc6917ca36.zip | |
vfio: Have the core code decode the VFIO_DEVICE_FEATURE ioctl
Invoke a new device op 'device_feature' to handle just the data array
portion of the command. This lifts the ioctl validation to the core code
and makes it simpler for either the core code, or layered drivers, to
implement their own feature values.
Provide vfio_check_feature() to consolidate checking the flags/etc against
what the driver supports.
Link: https://lore.kernel.org/all/20220224142024.147653-9-yishaih@nvidia.com
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Diffstat (limited to 'drivers/vfio/pci/vfio_pci.c')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index a5ce92beb655..2b047469e02f 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -130,6 +130,7 @@ static const struct vfio_device_ops vfio_pci_ops = { .open_device = vfio_pci_open_device, .close_device = vfio_pci_core_close_device, .ioctl = vfio_pci_core_ioctl, + .device_feature = vfio_pci_core_ioctl_feature, .read = vfio_pci_core_read, .write = vfio_pci_core_write, .mmap = vfio_pci_core_mmap, |