1 files changed, 10 insertions, 0 deletions

diff --git a/kernel/irq/Kconfig b/kernel/irq/Kconfig
index 5a38bf4de64..d8e323d1249 100644
--- a/kernel/irq/Kconfig
+++ b/kernel/irq/Kconfig
@@ -56,6 +56,16 @@ config GENERIC_IRQ_CHIP
 config IRQ_DOMAIN
         bool
 
+config IRQ_DOMAIN_DEBUG
+        bool "Expose hardware/virtual IRQ mapping via debugfs"
+        depends on IRQ_DOMAIN && DEBUG_FS
+        help
+          This option will show the mapping relationship between hardware irq
+          numbers and Linux irq numbers. The mapping is exposed via debugfs
+          in the file "virq_mapping".
+
+          If you don't know what this means you don't need it.
+
 # Support forced irq threading
 config IRQ_FORCED_THREADING
        bool