diff options
| author | Bharat Bhushan <Bharat.Bhushan@nxp.com> | 2017-03-06 09:52:00 (GMT) |
|---|---|---|
| committer | Xie Xiaobo <xiaobo.xie@nxp.com> | 2017-09-25 07:25:33 (GMT) |
| commit | 175c7ac7b23245387c5abcb0ab88a35f2b9dddff (patch) | |
| tree | b043d9630c14384df904f27a092ea52020a2902d /drivers/vfio | |
| parent | b43009bdc12c82cea808bce0c6825a99a6756cb5 (diff) | |
| download | linux-175c7ac7b23245387c5abcb0ab88a35f2b9dddff.tar.xz | |
vfio/fsl-mc: non-dprc device support added
Non-DPRC devices shares it's parent container MC portal
to communicate to MC hardware.
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Diffstat (limited to 'drivers/vfio')
| -rw-r--r-- | drivers/vfio/fsl-mc/vfio_fsl_mc.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/vfio/fsl-mc/vfio_fsl_mc.c b/drivers/vfio/fsl-mc/vfio_fsl_mc.c index 8f3a625..eb40249 100644 --- a/drivers/vfio/fsl-mc/vfio_fsl_mc.c +++ b/drivers/vfio/fsl-mc/vfio_fsl_mc.c @@ -229,9 +229,16 @@ static int vfio_fsl_mc_probe(struct fsl_mc_device *mc_dev) goto free_vfio_device; } } else { - /* Handling for Non-DPRC device to be added */ - ret = -EINVAL; - goto free_vfio_device; + struct fsl_mc_device *mc_bus_dev; + + /* Non-dprc devices share mc_io from the parent dprc */ + mc_bus_dev = to_fsl_mc_device(mc_dev->dev.parent); + if (mc_bus_dev == NULL) { + vfio_del_group_dev(dev); + goto free_vfio_device; + } + + mc_dev->mc_io = mc_bus_dev->mc_io; } return 0; @@ -253,6 +260,8 @@ static int vfio_fsl_mc_remove(struct fsl_mc_device *mc_dev) if (strcmp(mc_dev->obj_desc.type, "dprc") == 0) vfio_fsl_mc_cleanup_dprc(vdev); + mc_dev->mc_io = NULL; + vfio_iommu_group_put(mc_dev->dev.iommu_group, dev); kfree(vdev); |