diff options
| author | Sean Christopherson <sean.j.christopherson@intel.com> | 2019-08-28 00:40:27 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2019-09-24 14:37:35 +0300 |
| commit | bc8a0aafcbb82e5c7dde486c03e6c51e3896d797 (patch) | |
| tree | 1428a0786d0c957e2cbc823d9eb5a59ec39fac22 /arch/x86 | |
| parent | 5845038c111db27902bc220a4f70070fe945871c (diff) | |
| download | linux-bc8a0aafcbb82e5c7dde486c03e6c51e3896d797.tar.xz | |
KVM: x86: Relocate MMIO exit stats counting
Move the stat.mmio_exits update into x86_emulate_instruction(). This is
both a bug fix, e.g. the current update flows will incorrectly increment
mmio_exits on emulation failure, and a preparatory change to set the
stage for eliminating EMULATE_DONE and company.
Reviewed-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/kvm/mmu.c | 2 | ||||
| -rw-r--r-- | arch/x86/kvm/vmx/vmx.c | 1 | ||||
| -rw-r--r-- | arch/x86/kvm/x86.c | 2 |
3 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index a10af9c87f8a..138dcdef8a06 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -5456,8 +5456,6 @@ emulate: case EMULATE_DONE: return 1; case EMULATE_USER_EXIT: - ++vcpu->stat.mmio_exits; - /* fall through */ case EMULATE_FAIL: return 0; default: diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 8bab3e53d1e1..8f61250fc1c0 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -5201,7 +5201,6 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu) err = kvm_emulate_instruction(vcpu, 0); if (err == EMULATE_USER_EXIT) { - ++vcpu->stat.mmio_exits; ret = 0; goto out; } diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 7e51924c4a1c..2b92c2ca1d79 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6703,6 +6703,8 @@ restart: } r = EMULATE_USER_EXIT; } else if (vcpu->mmio_needed) { + ++vcpu->stat.mmio_exits; + if (!vcpu->mmio_is_write) writeback = false; r = EMULATE_USER_EXIT; |