Messages in this thread | | | Date | Tue, 15 Sep 2009 07:57:10 -0500 | From | Anthony Liguori <> | Subject | Re: [PATCH] virtio_console: Add support for multiple ports for generic guest and host communication |
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Amit Shah wrote: > Hey Greg, > > Can you tell me how this could work out -- each console port could have > a "role" string associated with it (obtainable from the invoking qemu > process in case of qemu/kvm). Something that I have in mind currently > is: > > $ qemu-kvm ... -virtioconsole role=org/qemu/clipboard > > and then the guest kernel sees the string, and puts the > "org/qemu/clipboard" in some file in sysfs. Guest userspace should then > be able to open and read/write to > > /dev/virtio_console/org/qemu/clipboard >
That's probably not what we want. I imagine what we want is:
/dev/ttyV0 /dev/ttyV1 /dev/ttyVN
And then we want:
/sys/class/virtio-console/ttyV0/name -> "org.qemu.clipboard"
Userspace can detect when new virtio-consoles appear via udev events. When it sees a new ttyVN, it can then look in sysfs to discover it's name.
Regards,
Anthony Liguori
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