linux-kernel - Re: [PATCH 2/8] x86/head: Refactor 32-bit pgtable setup

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Message-ID: <20161203054950.GB5701@gmail.com>
Date:   Sat, 3 Dec 2016 06:49:50 +0100
From:   Ingo Molnar <mingo@...nel.org>
To:     Boris Ostrovsky <boris.ostrovsky@...cle.com>
Cc:     hpa@...or.com, Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, david.vrabel@...rix.com,
        JGross@...e.com, roger.pau@...rix.com,
        linux-kernel@...r.kernel.org, xen-devel@...ts.xenproject.org,
        x86@...nel.org, Matt Fleming <matt@...eblueprint.co.uk>
Subject: Re: [PATCH 2/8] x86/head: Refactor 32-bit pgtable setup


* Boris Ostrovsky <boris.ostrovsky@...cle.com> wrote:

> > It is tricky to do so safely, because at this stage almost nothing of the C 
> > execution environment has been set up.

Yeah - but we do have a fair amount of early C code though.

> I can still give it a try but I'd rather not tie it to this (Xen PVH) patch 
> series. Which would leave me with two options: either keep what this patch does, 
> leaving it as assembly (requires your ack), or have Xen code build the pages on 
> its own.

If you give it a try in a subsequent patch (please Cc: me) then it's OK to me:

  Acked-by: Ingo Molnar <mingo@...nel.org>

Feel free to carry it in the Xen tree.

Thanks,

	Ingo