Alex Williamson :
[...]
> > Oh right, I looked for code references to the register but didn't notice
> > that Linux configures it for MSI, not MSI-X. In my brief testing I only
> > saw that Windows generates interrupts on the first vector, so perhaps
> > not much lost without the extra vectors.
Alex Williamson :
[...]
> device MSI will be blocked. The Linux driver doesn't make use of this
> window, so apparently it's not required to make use of MSI-X. This
It does not really use MSI-X (no RSS).
> quirk makes the device work with the Windows driver that does use this
> window for MSI-
