Greg KH wrote: > On Fri, Nov 07, 2008 at 04:17:02PM +0800, Zhao, Yu wrote: >>> Well, to do it "correctly" you are going to have to tell the driver to >>> shut itself down, and reinitialize itself. >>> Turns out, that doesn't really work for disk and network devices without >>> dropping the connection (well, network devices should be fine probably). >>> So you just can't do this, sorry. That's why the BIOS handles all of >>> these issues in a PCI hotplug system. >>> How does the hardware people think we are going to handle this in the >>> OS? It's not something that any operating system can do, is it part of >>> the IOV PCI spec somewhere? >> No, it's not part of the PCI IOV spec. >> >> I just want the IOV (and whole PCI subsystem) have more flexibility on >> various BIOSes. So can we reconsider about resource rebalance as boot >> option, or should we forget about this idea? > > As you have proposed it, the boot option will not work at all, so I > think we need to forget about it. Especially if it is not really > needed. I guess at least one thing would work if people don't want to boot twice: give the bus number 0 as rebalance starting point, then all system resources would be reshuffled :-) Thanks, Yu _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/virtualization
