| From | Greg Kroah-Hartman <> | Subject | [PATCH 5.15 153/207] KVM: x86/mmu: Pass parameter flush as false in kvm_tdp_mmu_zap_collapsible_sptes() | Date | Mon, 6 Dec 2021 15:56:47 +0100 |
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From: Hou Wenlong <houwenlong93@linux.alibaba.com>
[ Upstream commit 8ed716ca7dc91f058be0ba644a3048667a20db13 ]
Since tlb flush has been done for legacy MMU before kvm_tdp_mmu_zap_collapsible_sptes(), so the parameter flush should be false for kvm_tdp_mmu_zap_collapsible_sptes().
Fixes: e2209710ccc5d ("KVM: x86/mmu: Skip rmap operations if rmaps not allocated") Signed-off-by: Hou Wenlong <houwenlong93@linux.alibaba.com> Message-Id: <21453a1d2533afb6e59fb6c729af89e771ff2e76.1637140154.git.houwenlong93@linux.alibaba.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org> --- arch/x86/kvm/mmu/mmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 9d04474b00272..c9b1d63d3cfba 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -5855,7 +5855,7 @@ static bool kvm_mmu_zap_collapsible_spte(struct kvm *kvm, void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm, const struct kvm_memory_slot *slot) { - bool flush = false; + bool flush; if (kvm_memslots_have_rmaps(kvm)) { write_lock(&kvm->mmu_lock); @@ -5867,7 +5867,7 @@ void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm, if (is_tdp_mmu_enabled(kvm)) { read_lock(&kvm->mmu_lock); - flush = kvm_tdp_mmu_zap_collapsible_sptes(kvm, slot, flush); + flush = kvm_tdp_mmu_zap_collapsible_sptes(kvm, slot, false); if (flush) kvm_arch_flush_remote_tlbs_memslot(kvm, slot); read_unlock(&kvm->mmu_lock); -- 2.33.0
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