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channel: Check for channel type in kernel cmdline options #510

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merged 1 commit into from
Apr 3, 2019

Commits on Apr 3, 2019

  1. channel: Check for channel type in kernel cmdline options

    With a recent kernel change, the agent can no longer rely on
    /dev/vsock and AF_VSOCK in socket(), to detect if vhost-vsock
    channel has been passed by the runtime.
    These are not created when the vhost-vsock driver is initialised.
    
    The runtime should now pass this information explicilty.
    Based on the channel type passed, the agent now checks for that
    partcular channel type.
    In case it is not passed, check for both serial and vsock channel.
    This also introduces a change in the way vsock channel is detected
    by checking for devices under the vhost-vsock driver path.
    
    Fixes kata-containers#506
    
    Changes did not apply directly due to additions related to tracing
    in master, manually resolved conflicts, by getting rid of
    any tracing related changes.
    
    Signed-off-by: Archana Shinde <[email protected]>
    (cherry picked from commit 2af3599)
    amshinde committed Apr 3, 2019
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