Re: [libvirt] [PATCH v4 0/4] add pci-bridge support

ping ... 在 2013-02-19二的 10:25 +0800，liguang写道： > Now, it's impossible to arrange devices into multi-pci-bus, > for example: > <sound model='ac97'> > <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> > </sound> > <video> > <model type='cirrus' vram='9216' heads='1'/> > <address type='pci' domain='0x0000' bus='0x1' slot='0x02' function='0x0'/> > </video> > libvirt will complain about "bus != 0", > fortunately, qemu supports pci-to-pci bridge, > if we want to use multi-pci-bus, we can define > 2 pci bridge controllers, then attach 1 to the other > as a subordinate pci-bus, so, 2 pci-buses appear. > for example: > <controller type='pci-bridge' index='0'/> > <controller type='pci-bridge' index='1'> > <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> > </controller> > <sound model='ac97'> > <address type='pci' domain='0x0000' bus='0x01' slot='0x02' function='0x0'/> > </sound> > <video> > <model type='cirrus' vram='9216' heads='1'/> > <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> > </video> > > > src/conf/domain_conf.c | 98 ++++- > src/conf/domain_conf.h | 1 + > docs/schemas/domaincommon.rng | 1 + > src/qemu/qemu_capabilities.c | 4 + > src/qemu/qemu_capabilities.h | 1 + > src/qemu/qemu_command.c | 43 ++++++++++++++++++++----- > 6 files changed, 126 insertions(+), 22 deletions(-)