Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support

From	Catalin Marinas <catalin.marinas@arm.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support
Date	2016-07-14 18:30 +0200
Message-ID	<rURGp-3xe-7@gated-at.bofh.it> (permalink)
References	<rSGYN-7fn-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Fri, Jul 08, 2016 at 12:35:44PM -0400, David Long wrote:
> David A. Long (3):
>   arm64: Add HAVE_REGS_AND_STACK_ACCESS_API feature
>   arm64: Add more test functions to insn.c
>   arm64: add conditional instruction simulation support
> 
> Pratyush Anand (2):
>   arm64: Blacklist non-kprobe-able symbol
>   arm64: Treat all entry code as non-kprobe-able
> 
> Sandeepa Prabhu (4):
>   arm64: Kprobes with single stepping support
>   arm64: kprobes instruction simulation support
>   arm64: Add kernel return probes support (kretprobes)
>   kprobes: Add arm64 case in kprobe example module
> 
> William Cohen (1):
>   arm64: Add trampoline code for kretprobes

I applied these patches on top of the arm64 for-next/core branch an
tried to run the resulting kernel in a guest (on a Juno platform using
both kvmtool and qemu) with KPROBES_SANITY_TEST enabled. Unfortunately,
the kernel fails to boot with lots of "Unexpected kernel single-step
exception at EL1".

Did you manage to run Kprobes in a guest before?

-- 
Catalin

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Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support Catalin Marinas <catalin.marinas@arm.com> - 2016-07-14 18:30 +0200
  Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support William Cohen <wcohen@redhat.com> - 2016-07-14 19:10 +0200
    Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support Catalin Marinas <catalin.marinas@arm.com> - 2016-07-15 10:00 +0200
      Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support Marc Zyngier <marc.zyngier@arm.com> - 2016-07-15 10:10 +0200
        Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support Alex Bennée <alex.bennee@linaro.org> - 2016-07-15 11:00 +0200
          Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support Marc Zyngier <marc.zyngier@arm.com> - 2016-07-15 11:10 +0200
          Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support Marc Zyngier <marc.zyngier@arm.com> - 2016-07-15 12:00 +0200
  Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support David Long <dave.long@linaro.org> - 2016-07-14 20:00 +0200
  Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support Catalin Marinas <catalin.marinas@arm.com> - 2016-07-19 16:00 +0200
    Re: [PATCH v15 00/10] arm64: Add kernel probes (kprobes) support David Long <dave.long@linaro.org> - 2016-07-19 16:10 +0200

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