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| author | Lan Tianyu <Tianyu.Lan@microsoft.com> | 2018-12-06 14:21:11 +0100 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-12-21 11:28:42 +0100 |
| commit | 0cf853c5e238edf503ebda2fe541e6f4a3d5bd40 (patch) | |
| tree | c0eae846bf3caf92069a7f90b6e7162d3b253d03 /virt | |
| parent | KVM: Make kvm_set_spte_hva() return int (diff) | |
| download | linux-0cf853c5e238edf503ebda2fe541e6f4a3d5bd40.tar.xz linux-0cf853c5e238edf503ebda2fe541e6f4a3d5bd40.zip | |
KVM/MMU: Move tlb flush in kvm_set_pte_rmapp() to kvm_mmu_notifier_change_pte()
This patch is to move tlb flush in kvm_set_pte_rmapp() to
kvm_mmu_notifier_change_pte() in order to avoid redundant tlb flush.
Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/kvm_main.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index f90ceab3840e..cf7cc0554094 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -354,7 +354,10 @@ static void kvm_mmu_notifier_change_pte(struct mmu_notifier *mn, idx = srcu_read_lock(&kvm->srcu); spin_lock(&kvm->mmu_lock); kvm->mmu_notifier_seq++; - kvm_set_spte_hva(kvm, address, pte); + + if (kvm_set_spte_hva(kvm, address, pte)) + kvm_flush_remote_tlbs(kvm); + spin_unlock(&kvm->mmu_lock); srcu_read_unlock(&kvm->srcu, idx); } |