linux-kernel - Re: [PATCH v4 10/11] x86, boot: add fields to support load bzImage and ramdisk above 4G

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Message-ID: <CAE9FiQW=hSnmiqfaBZCapYnL1EKtUEzsqK5P9-D_ebHgedQqrw@mail.gmail.com>
Date:	Sat, 24 Nov 2012 16:31:45 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org, Yinghai Lu <yinghai@...nel.org>,
	Rob Landley <rob@...dley.net>,
	Matt Fleming <matt.fleming@...el.com>
Subject: Re: [PATCH v4 10/11] x86, boot: add fields to support load bzImage
 and ramdisk above 4G

On Sat, Nov 24, 2012 at 12:35 PM, Yinghai Lu <yinghai@...nel.org> wrote:
> ext_ramdisk_image/size will record high 32bits for ramdisk info.
>
> xloadflags bit0 will be set if relocatable with 64bit.
>
> Let get_ramdisk_image/size to use ext_ramdisk_image/size to get
> right positon for ramdisk.
>
> bootloader will fill value to ext_ramdisk_image/size when it load
> ramdisk above 4G.
>
> Also bootloader will check if xloadflags bit0 is set to decicde if
> it could load ramdisk high above 4G.
>
> Update header version to 2.12.
>
> -v2: add ext_cmd_line_ptr for above 4G support.
> -v3: update to xloadflags from HPA.
> -v4: use fields from bootparam instead setup_header accoring to HPA.

-v5 attached...

Download attachment "ext_ramdisk_image_v5.patch" of type "application/octet-stream" (7650 bytes)