wireguard: selftests: use virt machine on m68k

This should be a bit more stable hopefully.
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

tools/testing/selftests/wireguard/qemu/Makefile

@@ -208,10 +208,11 @@ QEMU_ARCH := m68k
 KERNEL_ARCH := m68k
 KERNEL_BZIMAGE := $(KERNEL_BUILD_PATH)/vmlinux
 KERNEL_CMDLINE := $(shell sed -n 's/CONFIG_CMDLINE=\(.*\)/\1/p' arch/m68k.config)
+QEMU_VPORT_RESULT := virtio-serial-device
 ifeq ($(HOST_ARCH),$(ARCH))
-QEMU_MACHINE := -cpu host,accel=kvm -machine q800 -append $(KERNEL_CMDLINE)
+QEMU_MACHINE := -cpu host,accel=kvm -machine virt -append $(KERNEL_CMDLINE)
 else
-QEMU_MACHINE := -machine q800 -smp 1 -append $(KERNEL_CMDLINE)
+QEMU_MACHINE := -machine virt -smp 1 -append $(KERNEL_CMDLINE)
 endif
 else ifeq ($(ARCH),riscv64)
 CHOST := riscv64-linux-musl

tools/testing/selftests/wireguard/qemu/arch/m68k.config

 CONFIG_MMU=y
+CONFIG_VIRT=y
 CONFIG_M68KCLASSIC=y
-CONFIG_M68040=y
-CONFIG_MAC=y
-CONFIG_SERIAL_PMACZILOG=y
-CONFIG_SERIAL_PMACZILOG_TTYS=y
-CONFIG_SERIAL_PMACZILOG_CONSOLE=y
+CONFIG_VIRTIO_CONSOLE=y
 CONFIG_COMPAT_32BIT_TIME=y
-CONFIG_CMDLINE="console=ttyS0 wg.success=ttyS1 panic_on_warn=1"
+CONFIG_CMDLINE="console=ttyGF0 wg.success=vport0p1 panic_on_warn=1"
 CONFIG_FRAME_WARN=1024