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Subject[PATCH v4 0/5] Powerpc/Watchpoint: Few important fixes
Date
v3: https://lists.ozlabs.org/pipermail/linuxppc-dev/2019-July/193339.html

v3->v4:
- Instead of considering exception as extraneous when dar is outside of
user specified range, analyse the instruction and check for overlap
between user specified range and actual load/store range.
- Add selftest for the same in perf-hwbreak.c
- Make ptrace-hwbreak.c selftest more strict by checking address in
check_success.
- Support for 8xx in ptrace-hwbreak.c selftest (Build tested only)
- Rebase to powerpc/next

@Christope, Can you please check Patch 5. I've just build-tested it
with ep88xc_defconfig.

Ravi Bangoria (5):
Powerpc/Watchpoint: Fix length calculation for unaligned target
Powerpc/Watchpoint: Don't ignore extraneous exceptions blindly
Powerpc/Watchpoint: Rewrite ptrace-hwbreak.c selftest
Powerpc/Watchpoint: Add dar outside test in perf-hwbreak.c selftest
Powerpc/Watchpoint: Support for 8xx in ptrace-hwbreak.c selftest

arch/powerpc/include/asm/debug.h | 1 +
arch/powerpc/include/asm/hw_breakpoint.h | 9 +-
arch/powerpc/kernel/dawr.c | 6 +-
arch/powerpc/kernel/hw_breakpoint.c | 76 ++-
arch/powerpc/kernel/process.c | 46 ++
arch/powerpc/kernel/ptrace.c | 37 +-
arch/powerpc/xmon/xmon.c | 3 +-
.../selftests/powerpc/ptrace/perf-hwbreak.c | 111 +++-
.../selftests/powerpc/ptrace/ptrace-hwbreak.c | 579 +++++++++++-------
9 files changed, 595 insertions(+), 273 deletions(-)

--
2.21.0

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