>>> On 28.02.13 at 17:06, Bjorn Helgaas <bhelgaas@xxxxxxxxxx> wrote: > There is currently no mechanism for the PCI core to tell a driver that > we're changing any device resources (IRQ, MMIO, I/O). Since there's > no way to tell a driver to refresh its idea of device resources, the > core can not change anything after we call a driver's .probe() > method. > > This could change in the future if we support dynamic resource > reassignment, but I think that would require adding some sort of > notification infrastructure so we could essentially suspend a driver, > reassign device resources, and tell the driver "things might have > changed" when we resume it. Thanks Bjorn! That should allow us to get things working for now the way I have coded them up already, and I assume eventual changes in this area (as you outlined) would imply cooperation by the driver (i.e. if a device is assigned to a guest, it ought to be possible to deny the re-assignment attempt if there's no way to let the guest know of the change). Jan -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
