On Mon, Aug 14, 2006 at 12:45:31PM -0700, H. Peter Anvin wrote:
> Vivek Goyal wrote:
> >>>
> >>What about once the kernel is booted?
> >
> >Sorry did not understand the question. Few more lines will help.
> >
>
> Is this field intended to protect any kind of memory during the early
> boot phase of the kernel proper, or only the decompressor?
>
I think it should protect against any dynamic memory usage during early
boot phase too till we reach a point where kernel is aware of BIOS provided
memory maps and kernel memory area usage can be controlled with the help
of BIOS provided/User defined memory maps.
In i386 implementation Eric is alredy taking into account the memory
used by bootmem bitmap and initial page tables. I have not looked into
x86_64 kernel code whether do I need to make such adjustments. It worked
for me so did not bother much. I will look into it.
Thanks
Vivek
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