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.
I've tested with patch series with a sample hack and payload. Chris Smart helped with the series, reviewing and providing valuable feedback Cc: Chris Smart <ch...@distroguy.com> Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> Cc: Michael Neuling <mi...@neuling.org> Cc: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com> Cc: Paul Mackerras <pau...@samba.org> Changelog Enable both primary and secondary MMU's (BUG FIX) Make the check for instruction violations common (SRR1_ISI_N_OR_G) Balbir Singh (3): Setup AMOR in HV mode Detect instruction fetch denied and report Enable storage keys for radix - user mode execution arch/powerpc/mm/fault.c | 4 ++++ arch/powerpc/mm/pgtable-radix.c | 41 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 45 insertions(+) -- 2.5.5
