[Xen-devel] [PATCH] x86: improve vCPU selection in pagetable_dying()

["Jan Beulich" <JBeulich@xxxxxxxx>]

Rather than unconditionally using vCPU 0, use the current vCPU if the
subject domain is the current one.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/arch/x86/mm/paging.c
+++ b/xen/arch/x86/mm/paging.c
@@ -858,7 +858,7 @@ void pagetable_dying(struct domain *d, p
 
     ASSERT(paging_mode_shadow(d));
 
-    v = d->vcpu[0];
+    v = (d == current->domain) ? current : d->vcpu[0];
     v->arch.paging.mode->shadow.pagetable_dying(v, gpa);
 #else
     BUG();



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