RE: [PATCH v3 3/3] Drivers: hv: vmbus: Add module parameter to cap the VMBus version

[Michael Kelley]

From: Andrea Parri <parri.andrea@xxxxxxxxx> Sent: Tuesday, October 15, 2019 4:47 AM
> 
> Currently, Linux guests negotiate the VMBus version with Hyper-V
> and use the highest available VMBus version they can connect to.
> This has some drawbacks: by using the highest available version,
> certain code paths are never executed and can not be tested when
> the guest runs on the newest host.
> 
> Add the module parameter "max_version", to upper-bound the VMBus
> versions guests can negotiate.
> 
> Suggested-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
> Signed-off-by: Andrea Parri <parri.andrea@xxxxxxxxx>
> ---
>  drivers/hv/connection.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 

Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>