On Sun, Apr 29, 2018 at 1:35 PM, Nicola Corna <nic...@corna.info> wrote: > April 28, 2018 5:59 PM, "Nico Huber" <nic...@gmx.de> wrote: > >> Yes, that's very likely a problem. It looks like the whole finalize code >> path of the X201 was untested all the time (even on resume). I don't >> remember if EHCI debug works in SMM? If it does, you could enable log- >> ging for the SMI handler as well (if you want to debug it). >> >> Nico > > Attached you can find the log with the SMM debug enabled, but it doesn't seem > to me much different from the non-debug log. > > Nicola
DEBUG_SMI does not output to EHCI, I have considered it too unstable. You can try your luck with attached patch to have DEBUG_SMI=y output on EHCI debug. EHCI console code does not take precautions against someone else touching the same register set so it's likely to fail once payload and/or OS loads its EHCI driver, possibly making USB media and keyboard unusable as well. Kyösti
usbdebug-in-smi
Description: Binary data
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