42 lines
1.3 KiB
Diff
42 lines
1.3 KiB
Diff
From 664e9386bd05dbdfecfb28d6cf2fde983aabc65c Mon Sep 17 00:00:00 2001
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From: Alex Williamson <alex.williamson@redhat.com>
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Date: Tue, 30 Apr 2013 15:42:28 -0600
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Subject: [PATCH] vfio: Set container device mode
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Minor 0 is the VFIO container device (/dev/vfio/vfio). On it's own
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the container does not provide a user with any privileged access. It
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only supports API version check and extension check ioctls. Only by
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attaching a VFIO group to the container does it gain any access. Set
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the mode of the container to allow access.
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Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
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---
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drivers/vfio/vfio.c | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
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index ac7423b..acb7121 100644
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--- a/drivers/vfio/vfio.c
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+++ b/drivers/vfio/vfio.c
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@@ -27,6 +27,7 @@
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#include <linux/rwsem.h>
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#include <linux/sched.h>
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#include <linux/slab.h>
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+#include <linux/stat.h>
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#include <linux/string.h>
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#include <linux/uaccess.h>
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#include <linux/vfio.h>
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@@ -1359,6 +1360,9 @@ static const struct file_operations vfio_device_fops = {
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*/
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static char *vfio_devnode(struct device *dev, umode_t *mode)
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{
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+ if (MINOR(dev->devt) == 0)
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+ *mode = S_IRUGO | S_IWUGO;
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+
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return kasprintf(GFP_KERNEL, "vfio/%s", dev_name(dev));
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}
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--
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1.8.1.4
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