Re: [libvirt] [PATCH 2/2] qemu: Order PCI controllers on the command line

Unlike other controllers, PCI controller can plug into each other, which might turn into a problem if they are not listed in the expected order on the QEMU command line, because the guest will then not be able to start with an error such as qemu-kvm: -device pci-bridge,chassis_nr=3,id=pci.3,bus=pci.2.0,addr=0x7: Bus 'pci.2.0' not found Add some logic to make sure PCI controller appear in the correct order on the QEMU command line, regardless of the order they were added to the guest configuration. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1479674 Signed-off-by: Andrea Bolognani <abologna(a)redhat.com&gt; --- src/qemu/qemu_command.c | 72 ++++++++++++++++------ .../qemuxml2argv-pci-autoadd-idx.args | 2 +- .../qemuxml2argv-pseries-many-buses-2.args | 4 +- 3 files changed, 56 insertions(+), 22 deletions(-)