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Commit 664e9386 authored by Alex Williamson's avatar Alex Williamson
Browse files

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: default avatarAlex Williamson <alex.williamson@redhat.com>
parent 0b43c082

drivers/vfio/vfio.c

+4 −0
Original line number Original line Diff line number Diff line
@@ -27,6 +27,7 @@ 
#include <linux/rwsem.h>

#include <linux/rwsem.h>

#include <linux/sched.h>

#include <linux/sched.h>

#include <linux/slab.h>

#include <linux/slab.h>

#include <linux/stat.h>

#include <linux/string.h>

#include <linux/string.h>

#include <linux/uaccess.h>

#include <linux/uaccess.h>

#include <linux/vfio.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)

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));

	return kasprintf(GFP_KERNEL, "vfio/%s", dev_name(dev));

}

}