linux-kernel - Re: [PATCH -next v5 4/5] arm64: mm: add support for page table check

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Date:   Mon, 25 Apr 2022 15:34:39 +0800
From:   Tong Tiangen <tongtiangen@...wei.com>
To:     Anshuman Khandual <anshuman.khandual@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, <x86@...nel.org>,
        "H. Peter Anvin" <hpa@...or.com>,
        Pasha Tatashin <pasha.tatashin@...een.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>
CC:     <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-riscv@...ts.infradead.org>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Guohanjun <guohanjun@...wei.com>
Subject: Re: [PATCH -next v5 4/5] arm64: mm: add support for page table check



在 2022/4/25 13:41, Anshuman Khandual 写道:
> 
> 
> On 4/24/22 09:44, Tong Tiangen wrote:
>>
>>
>> 在 2022/4/22 14:45, Anshuman Khandual 写道:
>>> Please change the subject line as
>>>
>>> arm64/mm: Enable ARCH_SUPPORTS_PAGE_TABLE_CHECK
>>>
>>> OR
>>>
>>> arm64/mm: Subscribe ARCH_SUPPORTS_PAGE_TABLE_CHECK
>>>
>>> On 4/21/22 13:50, Tong Tiangen wrote:
>>>> From: Kefeng Wang <wangkefeng.wang@...wei.com>
>>>>
>>>> As commit d283d422c6c4 ("x86: mm: add x86_64 support for page table
>>>> check"), add some necessary page table check hooks into routines that
>>>> modify user page tables.
>>>
>>> Please make the commit message comprehensive, which should include
>>>
>>> - Enabling ARCH_SUPPORTS_PAGE_TABLE_CHECK on arm64
>>> - Adding all additional page table helpers required for PAGE_TABLE_CHECK
>>> - Instrumenting existing page table helpers with page table check hooks
>>>
>>
>> Good suggestion, if i need to do a new version for some other reason i think it should be described more comprehensivel
> 
> 
> This series needs revision to accommodate earlier comments.
> .

OK, Thanks.