[PATCH v2 0/3] powerpc: Make sstep.c more generally useful

[Paul Mackerras]

This patch series modifies the code in arch/powerpc/lib/sstep.c so
that it can be used by KVM in its instruction emulation, thereby
reducing the number of different PowerPC instruction emulators that we
have in the kernel.  It does this by splitting the existing
emulate_step() function into two: an analyse_instr() function that
decodes an instruction and executes the easy ones, and an
emulate_step() function that uses analyse_instr() and then executes
the loads and stores.  The subsequent two patches add emulation of
some extra instructions.

v2: add #ifdef CONFIG_ALTIVEC around do_vec_{load,store} calls.

The patch series is against v3.17-rc1.

 arch/powerpc/include/asm/sstep.h |  62 +++
 arch/powerpc/lib/sstep.c         | 996 +++++++++++++++++++++++++--------------
 2 files changed, 698 insertions(+), 360 deletions(-)