Re: [tip:x86/platform] x86/hyper-v: Use hypercall for remote TLB flush

[Peter Zijlstra]

On Fri, Aug 11, 2017 at 02:46:41PM +0200, Juergen Gross wrote:
> Aah, okay. Now I understand the problem. The TLB isn't the issue but the
> IPI is serving two purposes here: TLB flushing (which is allowed to
> happen at any time) and serialization regarding access to critical pages
> (which seems to be broken in the Xen case as you suggest).

Indeed, and now hyper-v as well.