linux-kernel - Re: [PATCH v8 00/46] x86, mm: map ram from top-down with BRK and memblock.

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Message-ID: <CAE9FiQWF=uyieOT0ALQhqNeRT0Ou4OKoeaaUK+8NVJtj6n2=tg@mail.gmail.com>
Date:	Wed, 28 Nov 2012 13:06:37 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>, Jacob Shin <jacob.shin@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Stefano Stabellini <stefano.stabellini@...citrix.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v8 00/46] x86, mm: map ram from top-down with BRK and memblock.

On Wed, Nov 28, 2012 at 12:57 PM, Konrad Rzeszutek Wilk
<konrad.wilk@...cle.com> wrote:
> On Wed, Nov 28, 2012 at 11:47:51AM -0800, Yinghai Lu wrote:
>> On Wed, Nov 28, 2012 at 11:35 AM, Konrad Rzeszutek Wilk
>> <konrad.wilk@...cle.com> wrote:
>> >
>> > Have done so. I really like how the top-down mechanism works. It is pretty neat!
>> >
>> > Yinghai, I had mostly just comments about the patch descriptions -  I would
>> > appreciate it you could modify the patches to address the little nitpicks I
>> > spotted. And while doing that you can stick
>> > 'Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>' on all patches.
>> >
>> > For the "x86, mm, Xen: Remove mapping_pagetable_reserve()"
>> > you can also put 'Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>'
>>
>> Thanks a lot for reviewing. Will update those changelog, and add
>> acked-by and reviewed by...
>>
>> BTW, can you please check my for-x86-boot branch that will allow
>> bzImage to be loaded above 4G on 64bit platform by 64 bit bootloader.
>
> Is there a specific boot loader I should try it out with? I am using
> pxeboot and multiboot right now.

only updated kexec could load high.

but i changed to use early_memmap to copy boot_params and command line
for 64bit.

Not sure if it will break xen.

>
>> Hope it does not break Xen dom0 and domU.
>
> Any specific guest configs? 4G 8G 12G 30G?

8G should be enough.
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