xlat: Introduce API to get memory attributes of a region
This patch introduces a new API in the translation tables library
(v2), that allows to query the memory attributes of a memory block
or a memory page.
Change-Id: I45a8b39a53da39e7617cbac4bff5658dc1b20a11
Co-authored-by: Sandrine Bailleux <sandrine.bailleux@arm.com>
Co-authored-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
Signed-off-by: Antonio Nino Diaz <antonio.ninodiaz@arm.com>
diff --git a/include/lib/xlat_tables/xlat_tables_v2.h b/include/lib/xlat_tables/xlat_tables_v2.h
index 1a55fba..bdad133 100644
--- a/include/lib/xlat_tables/xlat_tables_v2.h
+++ b/include/lib/xlat_tables/xlat_tables_v2.h
@@ -251,5 +251,23 @@
#endif /* PLAT_XLAT_TABLES_DYNAMIC */
+/*
+ * Query the memory attributes of a memory page in a set of translation tables.
+ *
+ * Return 0 on success, a negative error code on error.
+ * On success, the attributes are stored into *attributes.
+ *
+ * ctx
+ * Translation context to work on.
+ * base_va
+ * Virtual address of the page to get the attributes of.
+ * There are no alignment restrictions on this address. The attributes of the
+ * memory page it lies within are returned.
+ * attributes
+ * Output parameter where to store the attributes of the targeted memory page.
+ */
+int get_mem_attributes(const xlat_ctx_t *ctx, uintptr_t base_va,
+ mmap_attr_t *attributes);
+
#endif /*__ASSEMBLY__*/
#endif /* __XLAT_TABLES_V2_H__ */