Commit 803482f4 authored by Isaku Yamahata's avatar Isaku Yamahata Committed by Paolo Bonzini
Browse files

KVM: x86/mmu: Use SHADOW_NONPRESENT_VALUE for atomic zap in TDP MMU 



Use SHADOW_NONPRESENT_VALUE when zapping TDP MMU SPTEs with mmu_lock held
for read, tdp_mmu_zap_spte_atomic() was simply missed during the initial
development.

Fixes: 7f01cab8 ("KVM: x86/mmu: Allow non-zero value for non-present SPTE and removed SPTE")
Signed-off-by: default avatarIsaku Yamahata <isaku.yamahata@intel.com>
[sean: write changelog]
Signed-off-by: default avatarSean Christopherson <seanjc@google.com>
Reviewed-by: default avatarKai Huang <kai.huang@intel.com>
Message-ID: <20240518000430.1118488-2-seanjc@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent cba23f33

arch/x86/kvm/mmu/tdp_mmu.c

+1 −1
Original line number Diff line number Diff line
@@ -626,7 +626,7 @@ static inline int tdp_mmu_zap_spte_atomic(struct kvm *kvm, 
	 * SPTEs.

	 */

	handle_changed_spte(kvm, iter->as_id, iter->gfn, iter->old_spte,

			    0, iter->level, true);

			    SHADOW_NONPRESENT_VALUE, iter->level, true);



	return 0;

}