Messages in this thread | | | Date | Fri, 11 Aug 2017 14:54:42 +0200 | From | Peter Zijlstra <> | Subject | Re: [tip:x86/platform] x86/hyper-v: Use hypercall for remote TLB flush |
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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.
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