diff --git a/include/zephyr/arch/arch_inlines.h b/include/zephyr/arch/arch_inlines.h
index a4173d2a95b04f5..42f532b16b834a6 100644
--- a/include/zephyr/arch/arch_inlines.h
+++ b/include/zephyr/arch/arch_inlines.h
@@ -32,6 +32,8 @@
 #include <zephyr/arch/posix/arch_inlines.h>
 #elif defined(CONFIG_SPARC)
 #include <zephyr/arch/sparc/arch_inlines.h>
+#elif defined(CONFIG_MICROBLAZE)
+#include <zephyr/arch/microblaze/arch_inlines.h>
 #else
 #error "Unknown Architecture"
 #endif
diff --git a/include/zephyr/arch/microblaze/arch_inlines.h b/include/zephyr/arch/microblaze/arch_inlines.h
new file mode 100644
index 000000000000000..e10e2c66badf627
--- /dev/null
+++ b/include/zephyr/arch/microblaze/arch_inlines.h
@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) 2022 Advanced Micro Devices, Inc. (AMD)
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+
+#ifndef ZEPHYR_INCLUDE_ARCH_MICROBLAZE_ARCH_INLINES_H
+#define ZEPHYR_INCLUDE_ARCH_MICROBLAZE_ARCH_INLINES_H
+
+#include <zephyr/kernel_structs.h>
+
+static ALWAYS_INLINE unsigned int arch_num_cpus(void)
+{
+	return CONFIG_MP_MAX_NUM_CPUS;
+}
+
+#endif /* ZEPHYR_INCLUDE_ARCH_MICROBLAZE_ARCH_INLINES_H */