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| author | Madhavan Srinivasan <maddy@linux.vnet.ibm.com> | 2013-10-01 21:04:10 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-10-03 09:22:53 +0200 |
| commit | d1211af3049f4c9c1d8d4eb8f8098cc4f4f0d0c7 (patch) | |
| tree | e7dedb4f171f28b2a07f4fc759a5a7de6fc1d1e1 /arch/powerpc/kernel/iommu.c | |
| parent | powerpc: Restore registers on error exit from csum_partial_copy_generic() (diff) | |
| download | linux-d1211af3049f4c9c1d8d4eb8f8098cc4f4f0d0c7.tar.xz linux-d1211af3049f4c9c1d8d4eb8f8098cc4f4f0d0c7.zip | |
powerpc/sysfs: Disable writing to PURR in guest mode
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>
CC: <stable@vger.kernel.org>
Diffstat (limited to 'arch/powerpc/kernel/iommu.c')
0 files changed, 0 insertions, 0 deletions