linux-kernel - Re: [PATCH v8 0/3] x86/boot/KASLR: Parse ACPI table and limit kaslr in immovable memory

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Message-ID: <20181025103345.GF14020@nazgul.tnic>
Date:   Thu, 25 Oct 2018 12:33:45 +0200
From:   Borislav Petkov <bp@...en8.de>
To:     Masayoshi Mizuma <msys.mizuma@...il.com>
Cc:     Baoquan He <bhe@...hat.com>, Ingo Molnar <mingo@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Chao Fan <fanc.fnst@...fujitsu.com>,
        linux-kernel@...r.kernel.org, x86@...nel.org,
        linux-efi@...r.kernel.org, linux-acpi@...r.kernel.org,
        mingo@...hat.com, hpa@...or.com, keescook@...omium.org,
        rjw@...ysocki.net, lenb@...nel.org, ard.biesheuvel@...aro.org,
        indou.takao@...fujitsu.com, caoj.fnst@...fujitsu.com
Subject: Re: [PATCH v8 0/3] x86/boot/KASLR: Parse ACPI table and limit kaslr
 in immovable memory

On Mon, Oct 22, 2018 at 11:42:05AM -0400, Masayoshi Mizuma wrote:
> I'm trying to store the SRAT info and pass it to kernel_randomize_memory(),
> looks like add_e820ext()/parse_setup_data().
> 
> Is the approach useful only EFI environment? I'm not sure how I

Does it matter for non-EFI even?

I mean, you want this code only for your use case - when you have
movable memory and you're doing kexec, yes?

And those machines are all EFI boxes I'd assume...

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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