linux-kernel - Re: [PATCH v6 1/3] x86/boot: Add acpitb.c to parse acpi tables

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Message-ID: <CAJZ5v0gep7Q4w+yOvgfOUG8rU12tYEw3qtDKCoZN2=b8-=-fjw@mail.gmail.com>
Date:   Mon, 10 Sep 2018 22:13:49 +0200
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     fanc.fnst@...fujitsu.com
Cc:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>,
        "the arch/x86 maintainers" <x86@...nel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Kees Cook <keescook@...omium.org>, bhe@...hat.com,
        indou.takao@...fujitsu.com, Cao jin <caoj.fnst@...fujitsu.com>,
        Dou Liyang <douly.fnst@...fujitsu.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Len Brown <lenb@...nel.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        linux-efi@...r.kernel.org,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>
Subject: Re: [PATCH v6 1/3] x86/boot: Add acpitb.c to parse acpi tables

On Mon, Sep 10, 2018 at 2:41 PM Chao Fan <fanc.fnst@...fujitsu.com> wrote:
>
> Imitate the ACPI code of parsing ACPI tables to dig and read ACPI
> tables.

Why?

> Since some operations are not needed here,

What operations?

> functions are simplified. Functions will be used to dig SRAT tables to get
> information of memory, so that KASLR can the memory in immovable node.

So do you want to parse SRAT only or do something in addition to that?

> And also, these functions won't influence the initialization of
> ACPI after start_kernel().