On Tue, Feb 04, 2014 at 12:46:08AM +0100, Sander Eikelenboom wrote: > Grmbll my fat fingers hit the send shortcut too soon by accident .. > let's try again .. > > Hi Michael, > > A git bisect turned out that commit 9e047b982452c633882b486682966c1d97097015 > breaks pci-passthrough on Xen. > > commit 9e047b982452c633882b486682966c1d97097015 > Author: Michael S. Tsirkin <m...@redhat.com> > Date: Mon Oct 14 18:01:20 2013 +0300 > > piix4: add acpi pci hotplug support > > Add support for acpi pci hotplug using the > new infrastructure. > PIIX4 legacy interface is maintained as is for > machine types 1.7 and older. > > Signed-off-by: Michael S. Tsirkin <m...@redhat.com> > > > The error is not very verbose : > > libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error > message from QMP server: Device initialization failed. > libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error > message from QMP server: Device initialization failed. > libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error > message from QMP server: Device initialization failed. > libxl: error: libxl_qmp.c:287:qmp_handle_error_response: received an error > message from QMP server: Device initialization failed. > > So it seems there is an issue with preserving the legacy interface.
Which machine type is broken? What's the command line used? What's the value of has_acpi_build in hw/i386/pc_piix.c? What happens if you add -global PIIX4_PM.acpi-pci-hotplug-with-bridge-support=off ? > -- > Sander >
