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device: 0.726
graphic: 0.614
network: 0.587
mistranslation: 0.515
socket: 0.504
semantic: 0.498
instruction: 0.440
other: 0.365
vnc: 0.349
boot: 0.305
KVM: 0.295
assembly: 0.148
xHCI Port Status Change Event at port powered
Per section 4.19.3 of the xHCI version 1.0 specification, when the Port Power bit transitions from 0 to 1, if there is a connection on that port, a Port Status Change Event should be issued.
Currently, when the port is powered, this event is not being issued.
I don't know the QEMU code base well enough to submit a patch, but I believe that when the port is powered, check to see if there is a connection (hence, setting the CCS and CSC bits), and then a call to:
xhci_port_notify(port, PORTSC_PLC);
will suffice.
Thank you,
Ben
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https://gitlab.com/qemu-project/qemu/-/issues
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