[syslinux] Re: Does pxelinux work with >1GB RAM?
H. Peter Anvin
hpa at zytor.com
Mon Oct 7 14:19:21 PDT 2002
H. J. Lu wrote:
> On Mon, Oct 07, 2002 at 12:18:39PM -0700, H. Peter Anvin wrote:
>
>>>I looked at Intel PXE. It did something strange with stack before
>>>calling the main PXE function.
>>>
>>
>>I'm sure it does, but that's not horrendously specific.
>
>
> When Intel PXE client calls the PXE function, it switches stack to
> SS:SP = 0:0x7C00 and switches back afterwards.
>
How wonderfully original. It might be worthwhile to use a low stack in
PXELINUX just like SYSLINUX and ISOLINUX uses. I'll try to release a
test version to see if that works.
Otherwise, your INT 12h values as well as ss and sp look sane.
-hpa
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