diff options
| author | Madhavan Srinivasan <maddy@linux.vnet.ibm.com> | 2013-10-02 00:34:10 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-10-13 16:08:31 -0700 |
| commit | 4d358e9e19f001d2d7b33c2c8daa7b83b85ae1fc (patch) | |
| tree | 16cf249ef5548a7f34cfcd9c185b9d9536628fae /mm | |
| parent | 65ddee385ba4ba923eeb64182963815dc24f7bc1 (diff) | |
powerpc/sysfs: Disable writing to PURR in guest mode
commit d1211af3049f4c9c1d8d4eb8f8098cc4f4f0d0c7 upstream.
arch/powerpc/kernel/sysfs.c exports PURR with write permission.
This may be valid for kernel in phyp mode. But writing to
the file in guest mode causes crash due to a priviledge violation
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions