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| author |   Jason Gunthorpe <jgg@nvidia.com> | 2022-05-04 16:14:46 -0300 |
|---|---|---|
| committer |   Alex Williamson <alex.williamson@redhat.com> | 2022-05-13 10:14:20 -0600 |
| commit | 6a985ae80befcf2c00e7c889336bfe9e9739e2ef (patch) | |
| tree | f6dbc8c708c963024e3ff914969024814edbc9bd /include/linux/vfio.h | |
| parent | kvm/vfio: Remove vfio_group from kvm (diff) | |
| download | wireguard-linux-6a985ae80befcf2c00e7c889336bfe9e9739e2ef.tar.xz wireguard-linux-6a985ae80befcf2c00e7c889336bfe9e9739e2ef.zip | |
vfio/pci: Use the struct file as the handle not the vfio_group
VFIO PCI does a security check as part of hot reset to prove that the user
has permission to manipulate all the devices that will be impacted by the
reset.
Use a new API vfio_file_has_dev() to perform this security check against
the struct file directly and remove the vfio_group from VFIO PCI.
Since VFIO PCI was the last user of vfio_group_get_external_user() and
vfio_group_put_external_user() remove it as well.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/8-v3-f7729924a7ea+25e33-vfio_kvm_no_group_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'include/linux/vfio.h')
| -rw-r--r-- | include/linux/vfio.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/vfio.h b/include/linux/vfio.h index b298a26c4f07..45b287826ce6 100644 --- a/include/linux/vfio.h +++ b/include/linux/vfio.h @@ -138,11 +138,10 @@ int vfio_mig_get_next_state(struct vfio_device *device, /* * External user API */ -extern struct vfio_group *vfio_group_get_external_user(struct file *filep); -extern void vfio_group_put_external_user(struct vfio_group *group); extern struct iommu_group *vfio_file_iommu_group(struct file *file); extern bool vfio_file_enforced_coherent(struct file *file); extern void vfio_file_set_kvm(struct file *file, struct kvm *kvm); +extern bool vfio_file_has_dev(struct file *file, struct vfio_device *device); #define VFIO_PIN_PAGES_MAX_ENTRIES (PAGE_SIZE/sizeof(unsigned long)) |