KVM: MMU: cleanup for FNAME(fetch)

gw->pte_access is the final access permission, since it is unified with
gw->pt_access when we walked guest page table:

FNAME(walk_addr_generic):
	pte_access = pt_access & FNAME(gpte_access)(vcpu, pte, true);
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

arch/x86/kvm/paging_tmpl.h

@@ -479,7 +479,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 	if (!is_present_gpte(gw->ptes[gw->level - 1]))
 		return NULL;
 
-	direct_access = gw->pt_access & gw->pte_access;
+	direct_access = gw->pte_access;
 
 	top_level = vcpu->arch.mmu.root_level;
 	if (top_level == PT32E_ROOT_LEVEL)
@@ -537,7 +537,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 		link_shadow_page(it.sptep, sp);
 	}
 
-	mmu_set_spte(vcpu, it.sptep, access, gw->pte_access & access,
+	mmu_set_spte(vcpu, it.sptep, access, gw->pte_access,
 		     user_fault, write_fault, ptwrite, it.level,
 		     gw->gfn, pfn, prefault, map_writable);
 	FNAME(pte_prefetch)(vcpu, gw, it.sptep);