[coreboot] Minimum RAM requirements for coreboot (under Qemu)
rminnich at gmail.com
Mon May 18 17:51:05 CEST 2009
On Mon, May 18, 2009 at 8:33 AM, Myles Watson <mylesgw at gmail.com> wrote:
>> The problem is that we're going to need a way to *not* hardcode it. 4M
>> is too low because some payloads will run right over it.
> I thought it was OK for payloads to run over coreboot. We don't load them
> until we're done. Right? What am I missing?
it's not ok to over-run the stack while loading the payload :-)
> Shouldn't this cause problems with the way we write mptables? If the
> mptable is too big this would write it over our stack, then zero it back
> out. My pending patch corrects this, but I didn't know it was an issue.
page 0 is getting crowded then.
page 0 is used in vm86 for IDT and stack.
It may be time to make a map. I did a map long ago, but changing
circumstances have rendered it obsolete.
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