linux-kernel - Re: [RFC PATCH] x86/boot: make ELF kernel multiboot-able

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Message-ID: <1eba3218-c770-72e1-dd1c-e5a0f6046acd@zytor.com>
Date:   Thu, 16 Feb 2017 21:00:05 -0800
From:   "H. Peter Anvin" <hpa@...or.com>
To:     Daniel Kiper <dkiper@...-space.pl>,
        The development of GNU GRUB <grub-devel@....org>
Cc:     "Luis R. Rodriguez" <mcgrof@...nel.org>,
        Juergen Gross <jgross@...e.com>,
        Paolo Bonzini <pbonzini@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Matt Fleming <matt@...eblueprint.co.uk>,
        Daniel Kiper <daniel.kiper@...cle.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, Alexander Graf <agraf@...e.de>,
        Ingo Molnar <mingo@...hat.com>,
        Al Viro <viro@...iv.linux.org.uk>,
        Andy Lutomirski <luto@...nel.org>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Chao Peng <chao.p.peng@...ux.intel.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Borislav Petkov <bp@...e.de>, Amnon Ilan <ailan@...hat.com>,
        Thomas Garnier <thgarnie@...gle.com>, phcoder@...il.com,
        arvidjaar@...il.com, konrad.wilk@...cle.com
Subject: Re: [RFC PATCH] x86/boot: make ELF kernel multiboot-able

On 02/16/17 15:27, Daniel Kiper wrote:
> 
> That is obvious. Do you think that Multiboot/Multiboot2 protocols are
> substantially suboptimal?
> 

Yes.  They push a lot of things into the bootloader for no good reason,
thus tying the kernel's hands and making the whole boot process more
fragile.

It isn't either like Grub has been very good about keeping to any spec,
their own or others.

	-hpa