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Diffstat (limited to 'arch/x86/kvm/mmu.c')
-rw-r--r--arch/x86/kvm/mmu.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index f5572804f59..e5dcae31ceb 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4173,6 +4173,8 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot)
memslot = id_to_memslot(kvm->memslots, slot);
last_gfn = memslot->base_gfn + memslot->npages - 1;
+ spin_lock(&kvm->mmu_lock);
+
for (i = PT_PAGE_TABLE_LEVEL;
i < PT_PAGE_TABLE_LEVEL + KVM_NR_PAGE_SIZES; ++i) {
unsigned long *rmapp;
@@ -4188,6 +4190,7 @@ void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot)
}
kvm_flush_remote_tlbs(kvm);
+ spin_unlock(&kvm->mmu_lock);
}
void kvm_mmu_zap_all(struct kvm *kvm)