Onboard USB controller passthrough

[Rajil Saraswat]

On 11/05/2017 11:42 AM, Peter Grehan wrote:
>
>  More importantly, EHCI controllers don't support MSI/MSI-x interrupts
> which is currently required for bhyve PCI-passthru.
>
> later,
>
> Peter.

The onboard xHCI controller (C610/X99 series chipset) does support MSI,

# pciconf -l -BbcV xhci0 at pci0:0:20:0
xhci0 at pci0:0:20:0:      class=0x0c0330 card=0x72708086 chip=0x8d318086
rev=0x05 hdr=0x00
    bar   [10] = type Memory, range 64, base 0xc6100000, size 65536, enabled
    cap 01[70] = powerspec 2  supports D0 D3  current D0
    cap 05[80] = MSI supports 8 messages, 64 bit enabled with 1 message

I will give this a try.


Thanks,

Rajil