diff options
| author | Matthew Rosato <mjrosato@linux.ibm.com> | 2020-10-26 11:34:40 -0400 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2020-11-01 12:30:52 -0700 |
| commit | 92fe289ace3e559e2d18d0c2e49cdfb4cbd5a59b (patch) | |
| tree | d442f2b340b85314770c88992f17b4092a6c261f /hw | |
| parent | 9670ee752727945d8ce4f76efc0b68364b832f20 (diff) | |
vfio: Add routine for finding VFIO_DEVICE_GET_INFO capabilities
Now that VFIO_DEVICE_GET_INFO supports capability chains, add a helper
function to find specific capabilities in the chain.
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 'hw')
| -rw-r--r-- | hw/vfio/common.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 920786a23e..57f55f0447 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -1159,6 +1159,16 @@ vfio_get_iommu_type1_info_cap(struct vfio_iommu_type1_info *info, uint16_t id) return vfio_get_cap((void *)info, info->cap_offset, id); } +struct vfio_info_cap_header * +vfio_get_device_info_cap(struct vfio_device_info *info, uint16_t id) +{ + if (!(info->flags & VFIO_DEVICE_FLAGS_CAPS)) { + return NULL; + } + + return vfio_get_cap((void *)info, info->cap_offset, id); +} + bool vfio_get_info_dma_avail(struct vfio_iommu_type1_info *info, unsigned int *avail) { |