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| author | Alex Williamson <alex.williamson@redhat.com> | 2013-04-30 23:42:28 +0200 |
|---|---|---|
| committer | Alex Williamson <alex.williamson@redhat.com> | 2013-04-30 23:42:28 +0200 |
| commit | 664e9386bd05dbdfecfb28d6cf2fde983aabc65c (patch) | |
| tree | 3981446d435ccf0c74f59520c1024ea51b41fcfe /drivers/vfio/vfio.c | |
| parent | vfio: Use down_reads to protect iommu disconnects (diff) | |
| download | linux-664e9386bd05dbdfecfb28d6cf2fde983aabc65c.tar.xz linux-664e9386bd05dbdfecfb28d6cf2fde983aabc65c.zip | |
vfio: Set container device mode
Minor 0 is the VFIO container device (/dev/vfio/vfio). On it's own
the container does not provide a user with any privileged access. It
only supports API version check and extension check ioctls. Only by
attaching a VFIO group to the container does it gain any access. Set
the mode of the container to allow access.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio/vfio.c')
| -rw-r--r-- | drivers/vfio/vfio.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c index ac7423bfaa7d..acb7121a9316 100644 --- a/drivers/vfio/vfio.c +++ b/drivers/vfio/vfio.c @@ -27,6 +27,7 @@ #include <linux/rwsem.h> #include <linux/sched.h> #include <linux/slab.h> +#include <linux/stat.h> #include <linux/string.h> #include <linux/uaccess.h> #include <linux/vfio.h> @@ -1359,6 +1360,9 @@ static const struct file_operations vfio_device_fops = { */ static char *vfio_devnode(struct device *dev, umode_t *mode) { + if (MINOR(dev->devt) == 0) + *mode = S_IRUGO | S_IWUGO; + return kasprintf(GFP_KERNEL, "vfio/%s", dev_name(dev)); } |