On Thursday 01 April 2010 08:54:14 am Avi Kivity wrote: > On 04/01/2010 06:39 PM, Tom Lyon wrote: > >>> - support for MSI and MSI-X interrupts (the intel 82599 VFs support > >>> only MSI-X) > >> > >> How does a userspace program receive those interrupts? > > > > Same as other UIO drivers - by read()ing an event counter. > > IIRC the usual event counter is /dev/uioX, what's your event counter now? Exact same mechanism. > > kvm really wants the event counter to be an eventfd, that allows hooking > it directly to kvm (which can inject an interrupt on an eventfd_signal), > can you adapt your patch to do this? My patch does not currently go anywhere near the read/fd logic of /dev/uioX. I think a separate patch would be appropriate. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
