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Date:   Wed, 24 Apr 2019 02:47:32 +0000
From:   Junichi Nomura <>
To:     Kairui Song <>
CC:     "" <>,
        "Borislav Petkov" <>,
        Thomas Gleixner <>,
        Chao Fan <>,
        Baoquan He <>, Dave Young <>,
        "" <>,
        "" <>
Subject: Re: [PATCH] x86/kexec: always ensure EFI systab region is mapped

On 4/24/19 2:15 AM, Kairui Song wrote:
> On Mon, Apr 22, 2019 at 11:21 PM Junichi Nomura <> wrote:
>> Is the mapping of ACPI tables just by luck, too?
> Good question, they should have same issue with systab, I ignored this one.
> Then in first kernel when doing kexec it should ensure both ACPI
> tables and the EFI systab are mapped, that should cover everything and
> make it work.


> Is there anything else missing?
No, as far as I looked around get_rsdp_addr().

Jun'ichi Nomura, NEC Corporation / NEC Solution Innovators, Ltd.

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