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Subject[PATCH v4 0/9] ftrace with regs + live patching for ppc64 LE (ABI v2)
Major changes since v3:
* the graph tracer works now.
It turned out the stack frame it tried to manipulate does not
exist at that point.
* changes only needed in order to support -mprofile-kernel are now
in a separate patch, prepended.
* Kconfig cleanup so this is only selectable on ppc64le.

Torsten Duwe (9):
ppc64 (le): prepare for -mprofile-kernel
ppc64le FTRACE_WITH_REGS implementation
ppc use ftrace_modify_all_code default
ppc64 ftrace_with_regs configuration variables
ppc64 ftrace_with_regs: spare early boot and low level
ppc64 ftrace: disable profiling for some functions
ppc64 ftrace: disable profiling for some files
Implement kernel live patching for ppc64le (ABIv2)
Enable LIVEPATCH to be configured on ppc64le and add livepatch.o if it
is selected.

arch/powerpc/Kconfig | 7 ++
arch/powerpc/Makefile | 7 ++
arch/powerpc/include/asm/ftrace.h | 5 ++
arch/powerpc/include/asm/livepatch.h | 45 ++++++++++
arch/powerpc/kernel/Makefile | 13 +--
arch/powerpc/kernel/entry_64.S | 164 ++++++++++++++++++++++++++++++++++-
arch/powerpc/kernel/ftrace.c | 88 ++++++++++++++-----
arch/powerpc/kernel/livepatch.c | 38 ++++++++
arch/powerpc/kernel/module_64.c | 38 +++++++-
arch/powerpc/kernel/process.c | 2 +-
arch/powerpc/lib/Makefile | 4 +-
arch/powerpc/mm/fault.c | 2 +-
arch/powerpc/mm/hash_utils_64.c | 18 ++--
arch/powerpc/mm/hugetlbpage-hash64.c | 2 +-
arch/powerpc/mm/hugetlbpage.c | 4 +-
arch/powerpc/mm/mem.c | 2 +-
arch/powerpc/mm/pgtable_64.c | 2 +-
arch/powerpc/mm/slb.c | 6 +-
arch/powerpc/mm/slice.c | 8 +-
kernel/trace/Kconfig | 5 ++
20 files changed, 406 insertions(+), 54 deletions(-)
create mode 100644 arch/powerpc/include/asm/livepatch.h
create mode 100644 arch/powerpc/kernel/livepatch.c

--
1.8.5.6



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