1 files changed, 82 insertions, 0 deletions
diff --git a/libipt/internal/include/pt_config.h b/libipt/internal/include/pt_config.h
new file mode 100644
index 0000000000000..5d18ca42485a0
--- /dev/null
+++ b/libipt/internal/include/pt_config.h
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2015-2019, 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.
+ */
+
+#include "intel-pt.h"
+
+
+/* Read the configuration provided by a library user and zero-initialize
+ * missing fields.
+ *
+ * We keep the user's size value if it is smaller than sizeof(*@config) to
+ * allow decoders to detect missing configuration bits.
+ *
+ * Returns zero on success, a negative error code otherwise.
+ * Returns -pte_internal if @config is NULL.
+ * Returns -pte_invalid if @uconfig is NULL.
+ * Returns -pte_bad_config if @config is too small to be useful.
+ */
+extern int pt_config_from_user(struct pt_config *config,
+			       const struct pt_config *uconfig);
+
+/* Get the configuration for the n'th address filter.
+ *
+ * Returns zero if @filter is NULL or @n is out of bounds.
+ *
+ * This corresponds to IA32_RTIT_CTL.ADDRn_CFG.
+ */
+extern uint32_t pt_filter_addr_cfg(const struct pt_conf_addr_filter *filter,
+				   uint8_t n);
+
+/* Get the lower bound (inclusive) of the n'th address filter.
+ *
+ * Returns zero if @filter is NULL or @n is out of bounds.
+ *
+ * This corresponds to IA32_RTIT_ADDRn_A.
+ */
+extern uint64_t pt_filter_addr_a(const struct pt_conf_addr_filter *filter,
+				 uint8_t n);
+
+/* Get the upper bound (inclusive) of the n'th address filter.
+ *
+ * Returns zero if @filter is NULL or @n is out of bounds.
+ *
+ * This corresponds to IA32_RTIT_ADDRn_B.
+ */
+extern uint64_t pt_filter_addr_b(const struct pt_conf_addr_filter *filter,
+				 uint8_t n);
+
+/* Check address filters.
+ *
+ * Checks @addr against @filter.
+ *
+ * Returns a positive number if @addr lies in a tracing-enabled region.
+ * Returns zero if @addr lies in a tracing-disabled region.
+ * Returns a negative pt_error_code otherwise.
+ */
+extern int pt_filter_addr_check(const struct pt_conf_addr_filter *filter,
+				uint64_t addr);