[PATCH 06/10] x86/hyper-v: implement rep hypercalls

From: Vitaly Kuznetsov Rep hypercalls are normal hypercalls which perform multiple actions at once. Hyper-V guarantees to return exectution to the caller in not more than 50us and the caller needs to use hypercall continuation. Touch NMI watchdog between hypercall

[PATCH 06/10] x86/hyper-v: implement rep hypercalls

From: Vitaly Kuznetsov Rep hypercalls are normal hypercalls which perform multiple actions at once. Hyper-V guarantees to return exectution to the caller in not more than 50us and the caller needs to use hypercall continuation. Touch NMI watchdog between hypercall invocations. This is going to