diff options
| author | Sean Christopherson <seanjc@google.com> | 2022-04-23 03:47:49 +0000 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2022-05-12 09:51:43 -0400 |
| commit | 1075d41efd598d3fd4d52a1e1116b20979975135 (patch) | |
| tree | 4ab75f1e4e2f0893dd209e8dc8894d06ec7ebdee /arch/x86/kvm/mmu/paging_tmpl.h | |
| parent | 8d5265b1016369836c0735ed40933e179f186630 (diff) | |
KVM: x86/mmu: Expand and clean up page fault stats
Expand and clean up the page fault stats. The current stats are at best
incomplete, and at worst misleading. Differentiate between faults that
are actually fixed vs those that result in an MMIO SPTE being created,
track faults that are spurious, faults that trigger emulation, faults
that that are fixed in the fast path, and last but not least, track the
number of faults that are taken.
Note, the number of faults that require emulation for write-protected
shadow pages can roughly be calculated by subtracting the number of MMIO
SPTEs created from the overall number of faults that trigger emulation.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20220423034752.1161007-10-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu/paging_tmpl.h')
| -rw-r--r-- | arch/x86/kvm/mmu/paging_tmpl.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h index 7f8f1c8dbed2..db80f7ccaa4e 100644 --- a/arch/x86/kvm/mmu/paging_tmpl.h +++ b/arch/x86/kvm/mmu/paging_tmpl.h @@ -723,7 +723,6 @@ static int FNAME(fetch)(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault, return ret; FNAME(pte_prefetch)(vcpu, gw, it.sptep); - ++vcpu->stat.pf_fixed; return ret; out_gpte_changed: |