[coreboot] [RFC] Universal panic-room serial console, for x86 BIOS bootblock
Patrick Georgi
patrick at georgi-clan.de
Tue Jul 12 08:09:01 CEST 2011
On Tue, 12 Jul 2011 00:40:17 +0100, Pete Batard wrote:
> I'm also wondering how much real-estate a minimal xHCI stack will
> take in a
> panic-room bootblock.
xHCI debug port doesn't require an xHCI stack (though it needs some
memory to work on in the background).
Like the EHCI debug port, it's a bunch of MMIO registers to work with
that provide a bidirectional serial pipe.
Patrick
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