linux-kernel - Re: [PATCH v2 0/3] Bitops instrumentation for KASAN

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Date:   Fri, 31 May 2019 17:12:03 +0200
From:   Marco Elver <elver@...gle.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...gle.com>,
        Mark Rutland <mark.rutland@....com>
Cc:     Jonathan Corbet <corbet@....net>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Arnd Bergmann <arnd@...db.de>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        kasan-dev <kasan-dev@...glegroups.com>
Subject: Re: [PATCH v2 0/3] Bitops instrumentation for KASAN

Addressed comments, and sent v3:
http://lkml.kernel.org/r/20190531150828.157832-1-elver@google.com

Many thanks!

-- Marco

On Wed, 29 May 2019 at 16:23, Marco Elver <elver@...gle.com> wrote:
>
> The previous version of this patch series and discussion can be found
> here:  https://lkml.org/lkml/2019/5/28/769
>
> The most significant change is the change of the instrumented access
> size to cover the entire word of a bit.
>
> Marco Elver (3):
>   lib/test_kasan: Add bitops tests
>   x86: Move CPU feature test out of uaccess region
>   asm-generic, x86: Add bitops instrumentation for KASAN
>
>  Documentation/core-api/kernel-api.rst     |   2 +-
>  arch/x86/ia32/ia32_signal.c               |   9 +-
>  arch/x86/include/asm/bitops.h             | 210 ++++----------
>  include/asm-generic/bitops-instrumented.h | 317 ++++++++++++++++++++++
>  lib/test_kasan.c                          |  75 ++++-
>  5 files changed, 450 insertions(+), 163 deletions(-)
>  create mode 100644 include/asm-generic/bitops-instrumented.h
>
> --
> 2.22.0.rc1.257.g3120a18244-goog
>