Subject: [PATCH 0/2] powerpc: Disable syscall emulation and stepping

From: Nicholas Piggin <[email-masked]>
Date: Mon, 24 Jan 2022 15:57:39 +1000

As discussed previously

https://lists.ozlabs.org/pipermail/linuxppc-dev/2022-January/238946.html

I'm wondering whether PPC32 should be returning -1 for syscall
instructions too here? That could be done in another patch anyway.

Thanks,
Nick

Nicholas Piggin (2):
  powerpc/64: remove system call instruction emulation
  powerpc/uprobes: Reject uprobe on a system call instruction

 arch/powerpc/include/asm/ppc-opcode.h |  1 +
 arch/powerpc/kernel/interrupt_64.S    | 10 -------
 arch/powerpc/kernel/uprobes.c         |  6 ++++
 arch/powerpc/lib/sstep.c              | 42 +++++++--------------------
 4 files changed, 18 insertions(+), 41 deletions(-)

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2.23.0