Without this patch series, the guest end up with two nics with the same MAC,
the emulated nic and the PV nic.
I tried few other path before to submite these patches:
- delayed the hot unplug in QEMU until the guest initialize the hotplug.
=> the guest unplug the nic only after the driver initialized it. That's a
bit late.
- delayed the call to unplug the emulated device until pci_acpi_init is
called
=> this is worse, the pv disc does not show up and the guest does not
boot.
In order to achive this fix, these patches introduce a new hotplug state only
used in acpi_piix4, and a new qdev callback force_unplug.
Would it be possible to have this fix in the next release?
Thanks,
Anthony PERARD (4):
Introduce a new hotplug state: Force eject.
qdev: Introduce qdev_force_unplug.
pci: Add force_unplug callback.
xen: Fix PV-on-HVM
hw/acpi_piix4.c | 5 +++++
hw/pci.c | 15 +++++++++++++--
hw/pci.h | 1 +
hw/qdev.c | 23 ++++++++++++++++++++---
hw/qdev.h | 3 +++
hw/xen_platform.c | 2 +-
6 files changed, 43 insertions(+), 6 deletions(-)