[PATCH 0/2] powerpc: Remove system call emulation

Naveen N. Rao naveen.n.rao at linux.vnet.ibm.com
Wed Mar 23 22:51:34 AEDT 2022


This is an update to the series posted by Nick here:
http://lkml.kernel.org/r/20220124055741.3686496-1-npiggin@gmail.com

The first patch disables probes and breakpoints on instructions that
can't be single stepped, including sc and scv. The second patch removes
system call emulation for powerpc64.

- Naveen



Naveen N. Rao (1):
  powerpc: Reject probes on instructions that can't be single stepped

Nicholas Piggin (1):
  powerpc/64: remove system call instruction emulation

 arch/powerpc/include/asm/probes.h  | 55 ++++++++++++++++++++++++++++++
 arch/powerpc/kernel/interrupt_64.S | 10 ------
 arch/powerpc/kernel/kprobes.c      |  4 +--
 arch/powerpc/kernel/uprobes.c      |  5 +++
 arch/powerpc/lib/sstep.c           | 46 ++++++-------------------
 arch/powerpc/xmon/xmon.c           | 11 +++---
 6 files changed, 77 insertions(+), 54 deletions(-)


base-commit: e8833c5edc5903f8c8c4fa3dd4f34d6b813c87c8
-- 
2.35.1



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