Guoy

遥看成梦,近看成风

BIOS EHCI Hand-off、Port 60/64 Emulation

EHCI Hand-off

【EHCI hand-off mechanism support】

EHCI ownership change SMI generation capability added and will be processed by BIOS. BIOS will stop EHCI legacy during OSes loading

if EHCI driver didn't claim  ownership change request.