x86: Call HVMOP_pagetable_dying on exit_mmap.

When a pagetable is about to be destroyed, we notify Xen so that the
hypervisor can clear the related shadow pagetable.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 157c93b62dd..75b479a684f 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1318,6 +1318,7 @@ static void __init xen_hvm_guest_init(void)
         have_vcpu_info_placement = 0;
         x86_init.irqs.intr_init = xen_init_IRQ;
         xen_hvm_init_time_ops();
+        xen_hvm_init_mmu_ops();
 }
 
 static bool __init xen_hvm_platform(void)