XE_SWC1_PROMISCUOUS
XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) | XE_SWC1_PROMISCUOUS);
XE_OUTB(XE_SWC1, XE_INB(XE_SWC1) & ~XE_SWC1_PROMISCUOUS);