Hi, Peter,
On Wed, 2007-09-19 at 09:04 -0700, H. Peter Anvin wrote:
> Huang, Ying wrote:
> >
> > Known Issues:
> >
> > 1. 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 latter is definitely not safe, since the space below 640K is the
> documented place to put the command line (and presumably where the
> bootloader would put other auxilliary chunks.)
>
> I'll try to do a full review of this later today. Haven't had time yet
> to look at this anything than but piecemeal.
Do you think this patch and the 32-bit boot protocol patch are ready to
merge for -mm? If not, I can revise them.
Best Regards,
Huang Ying
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