• Dimitris Aragiorgis's avatar
    kvm: Add migration capabilities as an hvparam · 937ff984
    Dimitris Aragiorgis authored
    
    
    Latest QEMU versions support various migration capabilities. Each
    can be enabled/disabled with 'migrate_set_capability' monitor
    command.
    
    Version 1.7.0 defines x-rdma-pin-all, auto-converge, zero-blocks,
    and xbzrle migration capabilities.
    
    Since migration capabilities are more than one, and because hvparams
    accept only strings/integers and not dicts we decide to provide
    the capabilities that should be on via a ":" separated string.
    
    In other words one can use the following to enable xbzrle and
    auto-converge:
    
    -H kvm:migration_caps=xbzrle:auto-converge
    
    IMPORTANT: xbzrle may result to BSOD for instances running
    Windows 2008r8 on drbd.
    
    Update man page of gnt-instance to include the new hvparam.
    Signed-off-by: default avatarDimitris Aragiorgis <dimara@grnet.gr>
    Signed-off-by: default avatarThomas Thrainer <thomasth@google.com>
    Reviewed-by: default avatarThomas Thrainer <thomasth@google.com>
    937ff984
Constants.hs 124 KB