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| author | David Matlack <dmatlack@google.com> | 2022-09-21 10:35:45 -0700 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-12-29 15:33:23 -0500 |
| commit | 9f33697ac7ff6945cc06cffb37423176680e2ddf (patch) | |
| tree | f2209d94b89c8438e79e298efbae41ead3830a02 | |
| parent | 9aa8ab43b38146029de807a8ff2696f51e15b226 (diff) | |
| download | linux-stable-9f33697ac7ff6945cc06cffb37423176680e2ddf.tar.gz linux-stable-9f33697ac7ff6945cc06cffb37423176680e2ddf.tar.bz2 linux-stable-9f33697ac7ff6945cc06cffb37423176680e2ddf.zip | |
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>
| -rw-r--r-- | arch/x86/kvm/mmu/mmu.c | 4 |
1 files changed, 0 insertions, 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: |