tools/testing/selftests/kho/x86.conf - linux - Git at Google

 QEMU_CMD=qemu-system-x86_64
 QEMU_KCONFIG="
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 "
 KERNEL_IMAGE="bzImage"
 KERNEL_CMDLINE="console=ttyS0"
	QEMU_CMD=qemu-system-x86_64
	QEMU_KCONFIG="
	CONFIG_SERIAL_8250=y
	CONFIG_SERIAL_8250_CONSOLE=y
	"
	KERNEL_IMAGE="bzImage"
	KERNEL_CMDLINE="console=ttyS0"