linux-kernel - Re: [PATCH v2 4/5] x86/kasan: Add helpers to align shadow addresses up and down

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Message-ID: <a501e1e7-f6ec-6b8b-e7de-cf79d7646de6@gmail.com>
Date:   Mon, 14 Nov 2022 17:13:10 +0300
From:   Andrey Ryabinin <ryabinin.a.a@...il.com>
To:     Sean Christopherson <seanjc@...gle.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Andy Lutomirski <luto@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org
Cc:     "H. Peter Anvin" <hpa@...or.com>,
        Alexander Potapenko <glider@...gle.com>,
        Andrey Konovalov <andreyknvl@...il.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        linux-kernel@...r.kernel.org, kasan-dev@...glegroups.com,
        syzbot+ffb4f000dc2872c93f62@...kaller.appspotmail.com,
        syzbot+8cdd16fd5a6c0565e227@...kaller.appspotmail.com
Subject: Re: [PATCH v2 4/5] x86/kasan: Add helpers to align shadow addresses
 up and down



On 11/10/22 23:35, Sean Christopherson wrote:
> Add helpers to dedup code for aligning shadow address up/down to page
> boundaries when translating an address to its shadow.
> 
> No functional change intended.
> 
> Signed-off-by: Sean Christopherson <seanjc@...gle.com>
> ---
>  arch/x86/mm/kasan_init_64.c | 40 ++++++++++++++++++++-----------------
>  1 file changed, 22 insertions(+), 18 deletions(-)
> 


Reviewed-by: Andrey Ryabinin <ryabinin.a.a@...il.com>