Qemu-kvm tree has already fixed this issue:
commit 4cf3e6f3d85492f20a773dd6c9068ab89ba24a18
Author: Alex Williamson <[email protected]>
Date: Wed Jun 2 10:58:29 2010 -0600
acpi_piix4: save gpe and pci hotplug slot status
PCI hotplug currently doesn't work after a migration because
we don't migrate the enable bits of the GPE state. Pull hotplug
structs into vmstate.
Signed-off-by: Alex Williamson <[email protected]>
Signed-off-by: Anthony Liguori <[email protected]>
Hunter Pitelka wrote:
> Hi,
>
> I'm trying to resume a VM from a migration and hotplug a PCI
> device, however I can't get it working. PCI hotplugging after
> booting the guest works fine, but if I migrate the guest, I can no
> longer hotplug. I'm using qemu/kvm out of the ubuntu 10.4
> repositories. I am
> migrating using `migrate "exec: dd of=statefile.dd"` and resuming with
> -incoming "exec: dd if=statefile.dd" on the command line. The pci_add
> command I"m running is
> `pci_add auto storage file=file.img,if=scsi,media=disk,snapshot=off`
> Which reports 'OK' always, but running `lspci` in the guest after a
> migration shows no new devices.
> I've been banging my head against the wall about this for a while
> now, so any help is appreciated. Thanks.
>
> ~Hunter
Thanks,
Xudong--
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