diff --git a/tests/qtest/boot-serial-test.c b/tests/qtest/boot-serial-test.c
index 85a3614..bfe7624 100644
--- a/tests/qtest/boot-serial-test.c
+++ b/tests/qtest/boot-serial-test.c
@@ -17,6 +17,15 @@
 #include "libqtest.h"
 #include "libqos/libqos-spapr.h"
 
+static const uint8_t bios_avr[] = {
+    0x88, 0xe0,             /* ldi r24, 0x08   */
+    0x80, 0x93, 0xc1, 0x00, /* sts 0x00C1, r24 ; Enable tx */
+    0x86, 0xe0,             /* ldi r24, 0x06   */
+    0x80, 0x93, 0xc2, 0x00, /* sts 0x00C2, r24 ; Set the data bits to 8 */
+    0x84, 0xe5,             /* ldi r24, 0x54   */
+    0x80, 0x93, 0xc6, 0x00, /* sts 0x00C6, r24 ; Output 'T' */
+};
+
 static const uint8_t kernel_mcf5208[] = {
     0x41, 0xf9, 0xfc, 0x06, 0x00, 0x00,     /* lea 0xfc060000,%a0 */
     0x10, 0x3c, 0x00, 0x54,                 /* move.b #'T',%d0 */
@@ -104,6 +113,8 @@
 
 static testdef_t tests[] = {
     { "alpha", "clipper", "", "PCI:" },
+    { "avr", "arduino-duemilanove", "", "T", sizeof(bios_avr), NULL, bios_avr },
+    { "avr", "arduino-mega-2560-v3", "", "T", sizeof(bios_avr), NULL, bios_avr},
     { "ppc", "ppce500", "", "U-Boot" },
     { "ppc", "40p", "-vga none -boot d", "Trying cd:," },
     { "ppc", "g3beige", "", "PowerPC,750" },