[Xen-devel] [PATCH] nestedsvm: reduce TLB flushes

[Christoph Egger <Christoph.Egger@xxxxxxx>]

Reduce TLB flushes:
1. When we update the cr3 during VMRUN/VMEXIT emulation
   we toggle between n1asid and n2asid forth and back
   => no TLB flush needed
2. Only flush n1asid or n2asid depending on vcpu guest mode
   and not both unconditionally.

Signed-off-by: Christoph Egger <Christoph.Egger@xxxxxxx>

--
---to satisfy European Law for business letters:
Advanced Micro Devices GmbH
Einsteinring 24, 85689 Dornach b. Muenchen
Geschaeftsfuehrer: Alberto Bozzo, Andrew Bowd
Sitz: Dornach, Gemeinde Aschheim, Landkreis Muenchen
Registergericht Muenchen, HRB Nr. 43632

Attachment: xen_nh_asid.diff
Description: xen_nh_asid.diff

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