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