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SubjectRe: [PATCH -tip v4 0/4] x86: kprobes: Prohibit kprobes on Xen/KVM emulate prefixes
Hi Peter,

Could you review this version?

Thank you,

On Fri, 6 Sep 2019 22:13:37 +0900
Masami Hiramatsu <mhiramat@kernel.org> wrote:

> Hi,
>
> Here is the 4th version of patches to handle Xen/KVM emulate
> prefix by x86 instruction decoder.
>
> These patches allow x86 instruction decoder to decode
> Xen and KVM emulate prefix correctly, and prohibit kprobes to
> probe on it.
> Previous version is here;
>
> https://lkml.kernel.org/r/156773433821.31441.2905951246664148487.stgit@devnote2
>
> In this version, I added 2 patches, [1/4] fixes __ASM_FORM() to
> accept macros using __stringify(), [2/4] introduces new
> asm/emulate_prefix.h to initialize Xen and KVM emulate prefix
> at one place. [3/4] is updated to use new emulate_prefix.h and
> fix to add emulate_prefix.h to sync check list.
>
> This series can be applied on -tip master branch which
> has merged Josh's objtool/perf sharing common x86 insn
> decoder series.
>
> Thank you,
>
> ---
>
> Masami Hiramatsu (4):
> x86/asm: Allow to pass macros to __ASM_FORM()
> x86: xen: kvm: Gather the definition of emulate prefixes
> x86: xen: insn: Decode Xen and KVM emulate-prefix signature
> x86: kprobes: Prohibit probing on instruction which has emulate prefix
>
>
> arch/x86/include/asm/asm.h | 8 ++++--
> arch/x86/include/asm/emulate_prefix.h | 14 +++++++++++
> arch/x86/include/asm/insn.h | 6 +++++
> arch/x86/include/asm/xen/interface.h | 11 +++------
> arch/x86/kernel/kprobes/core.c | 4 +++
> arch/x86/kvm/x86.c | 4 ++-
> arch/x86/lib/insn.c | 34 +++++++++++++++++++++++++++
> tools/arch/x86/include/asm/emulate_prefix.h | 14 +++++++++++
> tools/arch/x86/include/asm/insn.h | 6 +++++
> tools/arch/x86/lib/insn.c | 34 +++++++++++++++++++++++++++
> tools/objtool/sync-check.sh | 3 ++
> tools/perf/check-headers.sh | 3 ++
> 12 files changed, 128 insertions(+), 13 deletions(-)
> create mode 100644 arch/x86/include/asm/emulate_prefix.h
> create mode 100644 tools/arch/x86/include/asm/emulate_prefix.h
>
> --
> Masami Hiramatsu (Linaro) <mhiramat@kernel.org>


--
Masami Hiramatsu <mhiramat@kernel.org>

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