1 files changed, 20 insertions, 0 deletions
diff --git a/src/cpu/x86/smm/tseg_region.c b/src/cpu/x86/smm/tseg_region.c
index df9dea5c0fa7..07789f4ac1b3 100644
--- a/src/cpu/x86/smm/tseg_region.c
+++ b/src/cpu/x86/smm/tseg_region.c
@@ -84,3 +84,23 @@ void __weak stage_cache_external_region(void **base, size_t *size)
 		*size = 0;
 	}
 }
+
+void smm_list_regions(void)
+{
+	uintptr_t base;
+	size_t size;
+	int i;
+
+	smm_region(&base, &size);
+	if (!size)
+		return;
+
+	printk(BIOS_DEBUG, "SMM Memory Map\n");
+	printk(BIOS_DEBUG, "SMRAM       : 0x%zx 0x%zx\n", base, size);
+
+	for (i = 0; i < SMM_SUBREGION_NUM; i++) {
+		if (smm_subregion(i, &base, &size))
+			continue;
+		printk(BIOS_DEBUG, " Subregion %d: 0x%zx 0x%zx\n", i, base, size);
+	}
+}