KVM: Add fpu_reload counter
Measure the number of times we switch the fpu state.
Signed-off-by: Avi Kivity <avi@qumranet.com>
diff --git a/drivers/kvm/x86.c b/drivers/kvm/x86.c
index 923dfd4..c1211e1 100644
--- a/drivers/kvm/x86.c
+++ b/drivers/kvm/x86.c
@@ -62,6 +62,7 @@
{ "irq_exits", STAT_OFFSET(irq_exits) },
{ "host_state_reload", STAT_OFFSET(host_state_reload) },
{ "efer_reload", STAT_OFFSET(efer_reload) },
+ { "fpu_reload", STAT_OFFSET(fpu_reload) },
{ NULL }
};
@@ -2417,6 +2418,7 @@
vcpu->guest_fpu_loaded = 0;
fx_save(&vcpu->guest_fx_image);
fx_restore(&vcpu->host_fx_image);
+ ++vcpu->stat.fpu_reload;
}
EXPORT_SYMBOL_GPL(kvm_put_guest_fpu);