diff options
| author | Cornelia Huck <cohuck@redhat.com> | 2020-04-27 12:24:14 +0200 |
|---|---|---|
| committer | Cornelia Huck <cohuck@redhat.com> | 2020-04-28 12:29:01 +0200 |
| commit | dc6f8d458a4ccc360723993f31d310d06469f55f (patch) | |
| tree | f9c64dbb60e9d2c45b938aa2be16164d3cf3d780 /linux-headers/linux/vfio.h | |
| parent | 9904adfaca139581d6b03947a7e23c7e2cb64339 (diff) | |
linux-headers: update against Linux 5.7-rc3
commit 6a8b55ed4056ea5559ebe4f6a4b247f627870d4c
Reviewed-by: Michael S. Tsirkin <mst@redhat.com> # virtio/vhost parts
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200427102415.10915-3-cohuck@redhat.com>
Diffstat (limited to 'linux-headers/linux/vfio.h')
| -rw-r--r-- | linux-headers/linux/vfio.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h index fb10370d29..a41c452865 100644 --- a/linux-headers/linux/vfio.h +++ b/linux-headers/linux/vfio.h @@ -707,6 +707,43 @@ struct vfio_device_ioeventfd { #define VFIO_DEVICE_IOEVENTFD _IO(VFIO_TYPE, VFIO_BASE + 16) +/** + * VFIO_DEVICE_FEATURE - _IORW(VFIO_TYPE, VFIO_BASE + 17, + * struct vfio_device_feature) + * + * Get, set, or probe feature data of the device. The feature is selected + * using the FEATURE_MASK portion of the flags field. Support for a feature + * can be probed by setting both the FEATURE_MASK and PROBE bits. A probe + * may optionally include the GET and/or SET bits to determine read vs write + * access of the feature respectively. Probing a feature will return success + * if the feature is supported and all of the optionally indicated GET/SET + * methods are supported. The format of the data portion of the structure is + * specific to the given feature. The data portion is not required for + * probing. GET and SET are mutually exclusive, except for use with PROBE. + * + * Return 0 on success, -errno on failure. + */ +struct vfio_device_feature { + __u32 argsz; + __u32 flags; +#define VFIO_DEVICE_FEATURE_MASK (0xffff) /* 16-bit feature index */ +#define VFIO_DEVICE_FEATURE_GET (1 << 16) /* Get feature into data[] */ +#define VFIO_DEVICE_FEATURE_SET (1 << 17) /* Set feature from data[] */ +#define VFIO_DEVICE_FEATURE_PROBE (1 << 18) /* Probe feature support */ + __u8 data[]; +}; + +#define VFIO_DEVICE_FEATURE _IO(VFIO_TYPE, VFIO_BASE + 17) + +/* + * Provide support for setting a PCI VF Token, which is used as a shared + * secret between PF and VF drivers. This feature may only be set on a + * PCI SR-IOV PF when SR-IOV is enabled on the PF and there are no existing + * open VFs. Data provided when setting this feature is a 16-byte array + * (__u8 b[16]), representing a UUID. + */ +#define VFIO_DEVICE_FEATURE_PCI_VF_TOKEN (0) + /* -------- API for Type1 VFIO IOMMU -------- */ /** |