KVM: Per-vcpu statistics

Make the exit statistics per-vcpu instead of global.  This gives a 3.5%
boost when running one virtual machine per core on my two socket dual core
(4 cores total) machine.

Signed-off-by: Avi Kivity <avi@qumranet.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/drivers/kvm/svm.c b/drivers/kvm/svm.c
index 61ed7352e506..644efc5381ad 100644
--- a/drivers/kvm/svm.c
+++ b/drivers/kvm/svm.c
@@ -914,7 +914,7 @@ static int pf_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
         case EMULATE_DONE:
                 return 1;
         case EMULATE_DO_MMIO:
-                ++kvm_stat.mmio_exits;
+                ++vcpu->stat.mmio_exits;
                 kvm_run->exit_reason = KVM_EXIT_MMIO;
                 return 0;
         case EMULATE_FAIL:
@@ -1054,7 +1054,7 @@ static int io_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
         unsigned long count;
         gva_t address = 0;
 
-        ++kvm_stat.io_exits;
+        ++vcpu->stat.io_exits;
 
         vcpu->svm->next_rip = vcpu->svm->vmcb->control.exit_info_2;
 
@@ -1096,7 +1096,7 @@ static int halt_interception(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
                 return 1;
 
         kvm_run->exit_reason = KVM_EXIT_HLT;
-        ++kvm_stat.halt_exits;
+        ++vcpu->stat.halt_exits;
         return 0;
 }
 
@@ -1264,7 +1264,7 @@ static int interrupt_window_interception(struct kvm_vcpu *vcpu,
          */
         if (kvm_run->request_interrupt_window &&
             !vcpu->irq_summary) {
-                ++kvm_stat.irq_window_exits;
+                ++vcpu->stat.irq_window_exits;
                 kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN;
                 return 0;
         }
@@ -1636,14 +1636,14 @@ again:
         r = handle_exit(vcpu, kvm_run);
         if (r > 0) {
                 if (signal_pending(current)) {
-                        ++kvm_stat.signal_exits;
+                        ++vcpu->stat.signal_exits;
                         post_kvm_run_save(vcpu, kvm_run);
                         kvm_run->exit_reason = KVM_EXIT_INTR;
                         return -EINTR;
                 }
 
                 if (dm_request_for_irq_injection(vcpu, kvm_run)) {
-                        ++kvm_stat.request_irq_exits;
+                        ++vcpu->stat.request_irq_exits;
                         post_kvm_run_save(vcpu, kvm_run);
                         kvm_run->exit_reason = KVM_EXIT_INTR;
                         return -EINTR;
@@ -1672,7 +1672,7 @@ static void svm_inject_page_fault(struct kvm_vcpu *vcpu,
 {
         uint32_t exit_int_info = vcpu->svm->vmcb->control.exit_int_info;
 
-        ++kvm_stat.pf_guest;
+        ++vcpu->stat.pf_guest;
 
         if (is_page_fault(exit_int_info)) {