armvirt: enable MMIO_CMDLINE_DEVICES for firecracker support

This Kernel option allows to run OpenWrt witin a `firecracker` micro VM.

Firecracker is a KVM-based tool for superfast booting VMs on x86_64 and
aarch64. It makes rootfs available to the guest as a virtio-mmio device
and passes its address via the kernel cmdline. A kernel without
CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES will not recognize the rootfs
virtio-mmio device.

Suggested-by: Packet Please <pktpls@systemli.org>
Signed-off-by: Paul Spooren <mail@aparcar.org>

diff --git a/target/linux/armvirt/config-5.10 b/target/linux/armvirt/config-5.10
index 5715a74195d9020b5aea6c4828d3e7409f6a68ba..74b6957d9418d0db7e434286c812e248d2b63127 100644 (file)
--- a/target/linux/armvirt/config-5.10
+++ b/target/linux/armvirt/config-5.10
@@ -156,6 +156,7 @@ CONFIG_VIRTIO_BALLOON=y
 CONFIG_VIRTIO_BLK=y
 CONFIG_VIRTIO_CONSOLE=y
 CONFIG_VIRTIO_MMIO=y
+CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
 CONFIG_VIRTIO_NET=y
 CONFIG_VIRTIO_PCI=y
 CONFIG_VIRTIO_PCI_LEGACY=y