[powerpc v6 0/3] Enable storage keys for radix
Balbir Singh
bsingharora at gmail.com
Tue Nov 15 17:56:13 AEDT 2016
The first patch sets up AMOR in hypervisor mode. AMOR
needs to be setup before IAMR (details of AMOR/IAMR in
each patch). The second patch enables detection of exceptions
generated due to instruction fetch violations caused
and OOPSs' the task. The third patch enables IAMR for
both hypervisor and guest kernels.
IAMR in radix mode, prevents the kernel from executing
code from user mode pages.
I've tested with patch series with a sample hack and
payload.
Chris Smart helped with the series, reviewing and
providing valuable feedback
Changelog from previous post
Implement review comments and suggestions
Balbir Singh (3):
powerpc:Setup AMOR in HV mode
powerpc/mm/radix:Detect instruction fetch denied and report
powerpc:Enable storage keys for radix - user mode execution
arch/powerpc/mm/fault.c | 8 ++++++++
arch/powerpc/mm/pgtable-radix.c | 45 +++++++++++++++++++++++++++++++++++++++++
2 files changed, 53 insertions(+)
--
2.5.5
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