diff options
| author | Madhavan Srinivasan <maddy@linux.vnet.ibm.com> | 2013-10-02 00:34:10 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-07-09 10:51:22 -0700 |
| commit | 08ccce4afe13b2dcad0ac2a86b7bc138207814ff (patch) | |
| tree | 5e865865d69f862b86425f41e44f0ce187807af9 /scripts/dtc/util.h | |
| parent | badd9b71c5651a687d042966a5fa8d195e9cffe4 (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>
[Backported to 3.4: adjust context]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts/dtc/util.h')
0 files changed, 0 insertions, 0 deletions