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diff --git a/libipt/internal/include/pt_cpu.h b/libipt/internal/include/pt_cpu.h
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+++ b/libipt/internal/include/pt_cpu.h
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+/*
+ * Copyright (c) 2013-2018, Intel Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *  * Redistributions of source code must retain the above copyright notice,
+ *    this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *  * Neither the name of Intel Corporation nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef PT_CPU_H
+#define PT_CPU_H
+
+struct pt_cpu;
+
+/* Parses @s which should be of format family/model[/stepping] and
+ * stores the value in @cpu on success.
+ * The optional stepping defaults to 0 if omitted.
+ *
+ * Returns 0 on success.
+ * Returns -pte_invalid if @cpu or @s is NULL.
+ * Returns -pte_invalid if @s could not be parsed.
+ */
+extern int pt_cpu_parse(struct pt_cpu *cpu, const char *s);
+
+/* Get the cpu we're running on.
+ *
+ * Reads the family/model/stepping of the processor on which this function
+ * is executed and stores the value in @cpu.
+ *
+ * Returns zero on success, a negative error code otherwise.
+ * Returns -pte_invalid if @cpu is NULL.
+ */
+extern int pt_cpu_read(struct pt_cpu *cpu);
+
+#endif /* PT_CPU_H */