Re: [PATCH -mm -v5 0/3] i386/x86_64 boot: 32-bit boot protocol

["Huang, Ying" <ying.huang@intel.com>]

Hi, Peter and Andi,

Do you think this patch set is ready for merging? Otherwise what I can
do to make it ready?

Best Regards,
Huang Ying

On Fri, 2007-10-12 at 13:52 +0800, Huang, Ying wrote:
> This patchset defines a 32-bit boot protocol for i386/x86_64 platform,
> adds an extensible boot parameter passing mechanism, export the boot
> parameters via sysfs.
> 
> The patchset has been tested against 2.6.23-rc8-mm2 kernel on x86_64
> and i386.
> 
> This patchset is based on the proposal of Peter Anvin.
> 
> 
> Known Issues:
> 
> - Where is safe to place the linked list of setup_data?  Because the
>   length of the linked list of setup_data is variable, it can not be
>   copied into BSS segment of kernel as that of "zero page". We must
>   find a safe place for it, where it will not be overwritten by kernel
>   during booting up. The i386 kernel will overwrite some pages after
>   _end. The x86_64 kernel will overwrite some pages from 0x1000 on.
> 
> - The fields in zero page are fairly complex (such as struct
>   edd_info). Is it necessary to document every field inside the first
>   level fields, until the primary data type? Or is it sufficient to
>   provide the C struct name only?
> 
> 
> v5:
> 
> - Use bt_ioremap/bt_iounmap in copy_setup_data.
> 
> v4:
> 
> - Reserve setup_data and boot parameters for accessing during
>   runtime.
> - Export boot parameters via sysfs.
> 
> v3:
> 
> - Move hd0_info and hd1_info back to zero page for compatibility.
> 
> v2:
> 
> - Increase the boot protocol version number
> - Check version number before parsing setup data.
> - Revise zero page description according to the source code and move
>   them to zero-page.txt.
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