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- Spice agent for Linux
- =====================
-
- The spice agent for Linux consists of 2 parts, a daemon spice-vdagentd and
- a per X-session process spice-vdagent. The daemon gets started in Spice guests
- through a Sys-V initscript. The per X-session gets automatically started in
- desktop environments which honor /etc/xdg/autostart, and under gdm.
-
- The main daemon needs to know which X-session daemon is the currently
- active X-session (think switch user functionality) for this console kit is
- used. spice-vdagent can be compiled without console kit support for use with
- older distributions, in this case only one active X session is allowed.
-
- Features:
- * Client mouse mode (no need to grab mouse by client, no mouse lag)
- this is handled by the daemon by feeding mouse events into the kernel
- via uinput. This will only work if the active X-session is running a
- spice-vdagent process so that its resolution can be determined.
- * Automatic adjustment of the X-session resolution to the client resolution
- for single monitor configurations.
- * Support of copy and paste (text and images) between the active X-session
- and the client. This supports both the primary selection and the clipboard.
- * Limited support for multiple displays, prerequisites:
- * A new enough Xorg-server. For Fedora atleast Fedora-17, for RHEL-6 atleast
- xorg-x11-server-1.10.4-6.el6_2.3
- * A vm configured with multiple qxl devices
- * A guest running the latest spice-vdagent
- Then connect to the vm with the multiple monitor client which you want to
- use it with using: "spicec --full-screen=auto-config" (or the user portal
- equivalent). At this point the agent will write out a:
- /var/run/spice-vdagentd/xorg.conf.spice file. With all the necessary magic
- to get Xinerama working. Move this file to /etc/X11/xorg.conf, then kill
- Xorg so that it will get restarted and you should be good to go.
-
- All vdagent communications on the guest side run over a single pipe which
- gets presented to the guest os as a virtio serial port.
-
- Under windows this virtio serial port has the following name:
- \\\\.\\Global\\com.redhat.spice.0
-
- Under Linux this virtio serial port has the following name:
- /dev/virtio-ports/com.redhat.spice.0
-
- To enable the virtio serial port you need to pass the following params on
- the qemu cmdline:
-
- For qemu < 0.14.0:
- -device spicevmc
-
- For qemu >= 0.14.0:
- -device virtio-serial-pci,id=virtio-serial0,max_ports=16,bus=pci.0,addr=0x5 \
- -chardev spicevmc,name=vdagent,id=vdagent \
- -device \
- virtserialport,nr=1,bus=virtio-serial0.0,chardev=vdagent,name=com.redhat.spice.0
-
- Enjoy,
- Gerd & Hans
-
- --
- Gerd Hoffmann <kraxel@redhat.com>
- Hans de Goede <hdegoede@redhat.com>
-