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authorGerd Hoffmann <kraxel@redhat.com>2015-06-18 12:17:29 +0200
committerMichael S. Tsirkin <mst@redhat.com>2015-06-23 17:08:22 +0200
commiteb6c6a604890201e321a6ace32973d10dc033245 (patch)
treea6efd59428fd105df4823fe76c5f62da41c4ded9 /docs
parent72d97b3a543a9c2c820bd463ba24751ae4247ac3 (diff)
add pci-bridge-seat
Simplifies multiseat configuration, see docs/multiseat.txt update for details. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'docs')
-rw-r--r--docs/multiseat.txt19
-rw-r--r--docs/specs/pci-ids.txt1
2 files changed, 20 insertions, 0 deletions
diff --git a/docs/multiseat.txt b/docs/multiseat.txt
index b963665ef2..814496e94c 100644
--- a/docs/multiseat.txt
+++ b/docs/multiseat.txt
@@ -106,6 +106,25 @@ the devices attached to the seat.
Background info is here:
http://www.freedesktop.org/wiki/Software/systemd/multiseat/
+
+guest side with pci-bridge-seat
+-------------------------------
+
+Qemu version FIXME and newer has a new pci-bridge-seat device which
+can be used instead of pci-bridge. Just swap the device name in the
+qemu command line above. The only difference between the two devices
+is the pci id. We can match the pci id instead of the device path
+with a nice generic rule now, which simplifies the guest
+configuration:
+
+ [root@fedora ~]# cat /etc/udev/rules.d/70-qemu-pci-bridge-seat.rules
+ SUBSYSTEM=="pci", ATTR{vendor}=="0x1b36", ATTR{device}=="0x000a", \
+ TAG+="seat", ENV{ID_AUTOSEAT}="1"
+
+Patch with this rule will be submitted to upstream udev/systemd, so
+long-term, when systemd with this lands in distros, things will work
+just fine without any manual guest configuration.
+
Enjoy!
--
diff --git a/docs/specs/pci-ids.txt b/docs/specs/pci-ids.txt
index e4a44908cb..0adcb89aac 100644
--- a/docs/specs/pci-ids.txt
+++ b/docs/specs/pci-ids.txt
@@ -47,6 +47,7 @@ PCI devices (other than virtio):
1b36:0005 PCI test device (docs/specs/pci-testdev.txt)
1b36:0006 PCI Rocker Ethernet switch device
1b36:0007 PCI SD Card Host Controller Interface (SDHCI)
+1b36:000a PCI-PCI bridge (multiseat)
All these devices are documented in docs/specs.