diff options
Diffstat (limited to 'virt/kvm/kvm_main.c')
| -rw-r--r-- | virt/kvm/kvm_main.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index b299c0366320..5ce91254a793 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -461,12 +461,17 @@ static void kvm_mmu_notifier_change_pte(struct mmu_notifier *mn, trace_kvm_set_spte_hva(address); + /* + * .change_pte() must be surrounded by .invalidate_range_{start,end}(), + * and so always runs with an elevated notifier count. This obviates + * the need to bump the sequence count. + */ + WARN_ON_ONCE(!kvm->mmu_notifier_count); + idx = srcu_read_lock(&kvm->srcu); KVM_MMU_LOCK(kvm); - kvm->mmu_notifier_seq++; - if (kvm_set_spte_hva(kvm, address, pte)) kvm_flush_remote_tlbs(kvm); |