Introduce config option to select which IO port to send debug output on

[seabios.git] / src / Kconfig

diff --git a/src/Kconfig b/src/Kconfig
index 06ab8c17f08557042e9faa6e2d96999c74371b2a..cf0bff09b7d5140cae1a7ecb8a4890686686b0f8 100644 (file)
--- a/src/Kconfig
+++ b/src/Kconfig
@@ -104,15 +104,15 @@ menu "Hardware support"
     config AHCI
         depends on DRIVES
         bool "AHCI controllers"
-        default n
+        default y
         help
             Support for AHCI disk code.
     config VIRTIO_BLK
         depends on DRIVES && !COREBOOT
-        bool "VirtIO controllers"
+        bool "virtio-blk controllers"
         default y
         help
-            Support boot from virtio storage.
+            Support boot from virtio-blk storage.
     config FLOPPY
         depends on DRIVES
         bool "Floppy controller"
@@ -324,6 +324,8 @@ menu "BIOS Tables"
             Support generation of ACPI tables.
 endmenu
 
+source ../vgasrc/Kconfig
+
 menu "Debugging"
     config DEBUG_LEVEL
         int "Debug level"
@@ -347,11 +349,20 @@ menu "Debugging"
         help
             Base port for serial - generally 0x3f8, 0x2f8, 0x3e8, or 0x2e8.
 
-    config SCREEN_AND_DEBUG
-        depends on DEBUG_LEVEL != 0
-        bool "Show screen writes on debug ports"
+    config DEBUG_IO
+        depends on !COREBOOT && DEBUG_LEVEL != 0
+        bool "Special IO port debugging"
         default y
         help
-            Send characters that SeaBIOS writes to the screen to the
-            debug ports.
+            Some emulators or hypervisors provide with a way to output debug
+            information by outputing strings in a special port present in the
+            IO space.
+
+    config DEBUG_IO_PORT
+        depends on DEBUG_IO
+        hex "Debug IO port address"
+        default 0x0402
+        help
+            Bochs uses the 0x0402 address by default, whereas Xen
+            makes the 0xe9 IO address available for guests use.
 endmenu