[libvirt] [PATCH 0/3] add pci-bridge device and address type
Now, it's unnecessary 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 devices then attach 1 to the other
as a subordinate pci-bus, so, 2 pci-buses appear.
for example:
<pci-bridge type='root'/>
<pci-bridge type='subordinate'>
<address type='pci-bridge' domain='0x0000' bus='0x00'
slot='0x04' function='0x0'/>
</pci-bridge>
<sound model='ac97'>
<address type='pci-bridge' domain='0x0000' bus='0x01'
slot='0x02' function='0x0'/>
</sound>
<video>
<model type='cirrus' vram='9216' heads='1'/>
<address type='pci-bridge' domain='0x0000' bus='0x00'
slot='0x02' function='0x0'/>
</video>
src/conf/domain_conf.c | 88 +++++++++++++++++++++++++++++++++++++++++++++---
src/conf/domain_conf.h | 22 ++++++++++++
src/qemu/qemu_command.c | 52 +++++++++++++++++++++++++++++++++++++++++++---
docs/formatdomain.html.in | 23 +++++++++++++++++++++++
4 files changed, 176 insertions(+), 9 deletions(-)