can't enable virtio in kernel

[tonyevans75]

Hi, I'm on Artix Linux with OpenRC and I'm trying to follow the instructions and I'm on this part:
Requirements:
Linux kernel with virtio drivers
CONFIG_HW_RANDOM_VIRTIO=y
CONFIG_SCSI_VIRTIO=y
CONFIG_VIRTIO=y
CONFIG_VIRTIO_BALLOON=y
CONFIG_VIRTIO_NET=y
CONFIG_VIRTIO_PCI=y

But I can't figure out how to enable Virtio in the kernel.
I've installed libvirt-openrc and virt-manager and added and started the libvirtd service, but when I run:
zcat /proc/config.gz
to check what my kernel settings are, all of the above virtio lines are "=m" instead of "=y".