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| author | Matthew Rosato <mjrosato@linux.ibm.com> | 2020-10-07 14:56:23 -0400 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2020-10-12 11:37:59 -0600 |
| commit | e6b817d4b8217a9528fcfd59719b924ab8a5ff23 (patch) | |
| tree | 9ac25f235f94ebf3835c481fe196ed54b2820888 /drivers/vfio/pci/vfio_pci_private.h | |
| parent | 0c633f0be1dc70a6db46d90dba4cdae82073350a (diff) | |
| download | linux-e6b817d4b8217a9528fcfd59719b924ab8a5ff23.tar.bz2 | |
vfio-pci/zdev: Add zPCI capabilities to VFIO_DEVICE_GET_INFO
Define a new configuration entry VFIO_PCI_ZDEV for VFIO/PCI.
When this s390-only feature is configured we add capabilities to the
VFIO_DEVICE_GET_INFO ioctl that describe features of the associated
zPCI device and its underlying hardware.
This patch is based on work previously done by Pierre Morel.
Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/pci/vfio_pci_private.h')
| -rw-r--r-- | drivers/vfio/pci/vfio_pci_private.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/vfio/pci/vfio_pci_private.h b/drivers/vfio/pci/vfio_pci_private.h index 61ca8ab165dc..5c90e560c5c7 100644 --- a/drivers/vfio/pci/vfio_pci_private.h +++ b/drivers/vfio/pci/vfio_pci_private.h @@ -213,4 +213,16 @@ static inline int vfio_pci_ibm_npu2_init(struct vfio_pci_device *vdev) return -ENODEV; } #endif + +#ifdef CONFIG_VFIO_PCI_ZDEV +extern int vfio_pci_info_zdev_add_caps(struct vfio_pci_device *vdev, + struct vfio_info_cap *caps); +#else +static inline int vfio_pci_info_zdev_add_caps(struct vfio_pci_device *vdev, + struct vfio_info_cap *caps) +{ + return -ENODEV; +} +#endif + #endif /* VFIO_PCI_PRIVATE_H */ |