Re: KVM PCI passthrough IRQ limitations

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Chris Wright wrote:
* Jason Kwon (jkwon@xxxxxxxxxxx) wrote:
pci 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
IRQ handler type mismatch for IRQ 16
current handler: uhci_hcd:usb3

This is a shared interrupt (and pci device assignment will request a
non-shared interrupt).  Are you using that usb host controller?  Can you
unbind it?

I attempted unbinding the usb host driver, but the IRQ was/is also shared by the SATA drive controller, so I'm stuck. I tried moving the card to a different slot but the IRQ assignments were the same.

Does it make any difference whether the device is MSI-capable or not?

Thanks,

Jason
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