linux-kernel - Re: [PATCH v7u1 23/31] x86, boot: update comments about entries for 64bit image

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Message-ID: <CAE9FiQUVkrv3jcCZnrg3=7pXyyfd9d+MJGDqU-dF_+YtB+2-ww@mail.gmail.com>
Date:	Mon, 14 Jan 2013 10:35:28 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Borislav Petkov <bp@...en8.de>, Yinghai Lu <yinghai@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...e.hu>, "H. Peter Anvin" <hpa@...or.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Jan Kiszka <jan.kiszka@....de>,
	Jason Wessel <jason.wessel@...driver.com>,
	linux-kernel@...r.kernel.org, Rob Landley <rob@...dley.net>,
	Matt Fleming <matt.fleming@...el.com>
Subject: Re: [PATCH v7u1 23/31] x86, boot: update comments about entries for
 64bit image

On Mon, Jan 14, 2013 at 3:20 AM, Borislav Petkov <bp@...en8.de> wrote:
>> the boot loader should
>> +also fill the additional fields of the struct boot_params as that
>
>                                                         remove "that"
>
>> +described in zero-page.txt.
>
> Btw, you could document the sentinel mechanism here or in zero-page.txt,
> for example.


that is:
---
The memory for struct boot_params
could be allocated anywhere (even above 4G) and initialized to all zero.
---

bootloader memset zero_page at first means.
and all bootloader did that except kexec. and it is fixed patches for
kexec-tools.
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