RE: [PATCH 6/7] x86/hyper-v: use hypercall for remove TLB flush

From: Jork Loeser
Date: Mon Apr 10 2017 - 13:35:19 EST


> -----Original Message-----
> From: Vitaly Kuznetsov [mailto:vkuznets@xxxxxxxxxx]

> > We may be supporting more than 64 CPUs in this hypercall. I am going
> > to inquire with the Windows folks and get back to you.
>
> Thanks! It is even specified in the specification:
> "Future versions of the hypervisor may support more than 64 virtual
> processors per partition. In that case, a new field will be added to the flags
> value that allows the caller to define the âprocessor bankâ to which the
> processor mask applies."
>
> We, however, need to know where to put this in flags.

Would the HvFlushVirtualAddressListEx hypercall do? Is there a doc update/clarification needed?

Regards,
Jork