From 1290f90e77186bf8a06a3a35ebf254f5b004676b Mon Sep 17 00:00:00 2001 From: David Matlack <dmatlack@google.com> Date: Wed, 21 Sep 2022 10:35:45 -0700 Subject: [PATCH] KVM: x86/mmu: Stop needlessly making MMU pages available for TDP MMU faults Stop calling make_mmu_pages_available() when handling TDP MMU faults. The TDP MMU does not participate in the "available MMU pages" tracking and limiting so calling this function is unnecessary work when handling TDP MMU faults. Signed-off-by: David Matlack <dmatlack@google.com> Reviewed-by: Isaku Yamahata <isaku.yamahata@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20220921173546.2674386-10-dmatlack@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- arch/x86/kvm/mmu/mmu.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c index 7b10bff3d2e7..dfac473d188a 100644 --- a/arch/x86/kvm/mmu/mmu.c +++ b/arch/x86/kvm/mmu/mmu.c @@ -4408,10 +4408,6 @@ static int kvm_tdp_mmu_page_fault(struct kvm_vcpu *vcpu, if (is_page_fault_stale(vcpu, fault)) goto out_unlock; - r = make_mmu_pages_available(vcpu); - if (r) - goto out_unlock; - r = kvm_tdp_mmu_map(vcpu, fault); out_unlock: