提交 0c04851c 编写于 作者: A Avi Kivity 提交者: Marcelo Tosatti

KVM: trace guest fpu loads and unloads

Signed-off-by: NAvi Kivity <avi@redhat.com>
Signed-off-by: NMarcelo Tosatti <mtosatti@redhat.com>
上级 8ae09912
......@@ -5292,6 +5292,7 @@ void kvm_load_guest_fpu(struct kvm_vcpu *vcpu)
vcpu->guest_fpu_loaded = 1;
kvm_fx_save(&vcpu->arch.host_fx_image);
kvm_fx_restore(&vcpu->arch.guest_fx_image);
trace_kvm_fpu(1);
}
void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
......@@ -5304,6 +5305,7 @@ void kvm_put_guest_fpu(struct kvm_vcpu *vcpu)
kvm_fx_restore(&vcpu->arch.host_fx_image);
++vcpu->stat.fpu_reload;
set_bit(KVM_REQ_DEACTIVATE_FPU, &vcpu->requests);
trace_kvm_fpu(0);
}
void kvm_arch_vcpu_free(struct kvm_vcpu *vcpu)
......
......@@ -145,6 +145,25 @@ TRACE_EVENT(kvm_mmio,
__entry->len, __entry->gpa, __entry->val)
);
#define kvm_fpu_load_symbol \
{0, "unload"}, \
{1, "load"}
TRACE_EVENT(kvm_fpu,
TP_PROTO(int load),
TP_ARGS(load),
TP_STRUCT__entry(
__field( u32, load )
),
TP_fast_assign(
__entry->load = load;
),
TP_printk("%s", __print_symbolic(__entry->load, kvm_fpu_load_symbol))
);
#endif /* _TRACE_KVM_MAIN_H */
/* This part must be outside protection */
......
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