diff --git a/subsys/testsuite/include/zephyr/interrupt_util.h b/subsys/testsuite/include/zephyr/interrupt_util.h
index 68f2632235f8c2a..3f9d06330b14bbe 100644
--- a/subsys/testsuite/include/zephyr/interrupt_util.h
+++ b/subsys/testsuite/include/zephyr/interrupt_util.h
@@ -197,6 +197,11 @@ static inline void trigger_irq(int irq)
 	z_mips_enter_irq(irq);
 }
 
+#elif defined(CONFIG_MICROBLAZE)
+static inline void trigger_irq(int irq)
+{
+	EMULATE_IRQ(irq);
+}
 #else
 /* So far, Nios II does not support this */
 #define NO_TRIGGER_FROM_SW
diff --git a/subsys/testsuite/include/zephyr/test_asm_inline_gcc.h b/subsys/testsuite/include/zephyr/test_asm_inline_gcc.h
index aba64c450c8c0d5..a68ec9dec6ed542 100644
--- a/subsys/testsuite/include/zephyr/test_asm_inline_gcc.h
+++ b/subsys/testsuite/include/zephyr/test_asm_inline_gcc.h
@@ -48,6 +48,8 @@ static inline void timestamp_serialize(void)
 #define timestamp_serialize()
 #elif defined(CONFIG_MIPS)
 #define timestamp_serialize()
+#elif defined(CONFIG_MICROBLAZE)
+#define timestamp_serialize()
 #else
 #error implementation of timestamp_serialize() not provided for your CPU target
 #endif