On Thu, Mar 25, 2010 at 10:35 AM, Avi Kivity <avi@xxxxxxxxxx> wrote: > On 03/25/2010 06:24 PM, Cam Macdonell wrote: >> >>> There is now a generic PCI 2.3 driver that can handle all PCI devices. >>> It >>> doesn't support MSI, but if we add MSI support then it can be used >>> without >>> the need for a specialized driver. >>> >> >> Agreed, I'd be happy to use the generic driver if MSI is there. What >> would MSI support for UIO look like? An array of "struct uio_irq" for >> the different vectors? >> > > I'm not familiar with the uio internals, but for the interface, an ioctl() > on the fd to assign an eventfd to an MSI vector. Similar to ioeventfd, but > instead of mapping a doorbell to an eventfd, it maps a real MSI to an > eventfd. uio will never support ioctls. Maybe irqcontrol could be extended? > > That would be very useful for device assignment: we can pick up a uio > device, map its vectors, and give them to a guest. > > > -- > error compiling committee.c: too many arguments to function > > -- 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
