diff options
author | Yi Liu <yi.l.liu@intel.com> | 2023-07-18 16:55:35 +0300 |
---|---|---|
committer | Alex Williamson <alex.williamson@redhat.com> | 2023-07-25 19:19:01 +0300 |
commit | 6086efe73498fd0f97817375cc248f72ad1e20bc (patch) | |
tree | ebd243f993c4571fc392b7e39752c30ffc4c3b46 /drivers/vfio/iommufd.c | |
parent | 839e692fa4eb7da5c541a65155f1dbc237d8afaa (diff) | |
download | linux-6086efe73498fd0f97817375cc248f72ad1e20bc.tar.xz |
vfio-iommufd: Move noiommu compat validation out of vfio_iommufd_bind()
This moves the noiommu compat validation logic into vfio_df_group_open().
This is more consistent with what will be done in vfio device cdev path.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Tested-by: Terrence Xu <terrence.xu@intel.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Matthew Rosato <mjrosato@linux.ibm.com>
Tested-by: Yanting Jiang <yanting.jiang@intel.com>
Tested-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
Tested-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Link: https://lore.kernel.org/r/20230718135551.6592-11-yi.l.liu@intel.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/iommufd.c')
-rw-r--r-- | drivers/vfio/iommufd.c | 22 |
1 files changed, 8 insertions, 14 deletions
diff --git a/drivers/vfio/iommufd.c b/drivers/vfio/iommufd.c index afda47ee9663..36f838dad084 100644 --- a/drivers/vfio/iommufd.c +++ b/drivers/vfio/iommufd.c @@ -10,6 +10,14 @@ MODULE_IMPORT_NS(IOMMUFD); MODULE_IMPORT_NS(IOMMUFD_VFIO); +bool vfio_iommufd_device_has_compat_ioas(struct vfio_device *vdev, + struct iommufd_ctx *ictx) +{ + u32 ioas_id; + + return !iommufd_vfio_compat_ioas_get_id(ictx, &ioas_id); +} + int vfio_iommufd_bind(struct vfio_device *vdev, struct iommufd_ctx *ictx) { u32 ioas_id; @@ -18,20 +26,6 @@ int vfio_iommufd_bind(struct vfio_device *vdev, struct iommufd_ctx *ictx) lockdep_assert_held(&vdev->dev_set->lock); - if (vfio_device_is_noiommu(vdev)) { - if (!capable(CAP_SYS_RAWIO)) - return -EPERM; - - /* - * Require no compat ioas to be assigned to proceed. The basic - * statement is that the user cannot have done something that - * implies they expected translation to exist - */ - if (!iommufd_vfio_compat_ioas_get_id(ictx, &ioas_id)) - return -EPERM; - return 0; - } - ret = vdev->ops->bind_iommufd(vdev, ictx, &device_id); if (ret) return ret; |