[COMMIT master] KVM: MMU: Initialize base_role for tdp mmus

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From: Avi Kivity <avi@xxxxxxxxxx>

Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>
Signed-off-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx>

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 397a98f..113cfd6 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2884,6 +2884,7 @@ static int init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
 {
 	struct kvm_mmu *context = vcpu->arch.walk_mmu;
 
+	context->base_role.word = 0;
 	context->new_cr3 = nonpaging_new_cr3;
 	context->page_fault = tdp_page_fault;
 	context->free = nonpaging_free;
--
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