It is useful to mount the root file system via virtio_fs. During testing a monolithic kernel is more convenient than an initramfs but we'll need to teach the kernel how to boot directly from virtio_fs.
Signed-off-by: Stefan Hajnoczi <[email protected]> --- init/do_mounts.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/init/do_mounts.c b/init/do_mounts.c index 53cb37b66227..d7e7bb83f85b 100644 --- a/init/do_mounts.c +++ b/init/do_mounts.c @@ -554,6 +554,16 @@ void __init mount_root(void) change_floppy("root floppy"); } #endif +#ifdef CONFIG_VIRTIO_FS + if (root_fs_names && !strcmp(root_fs_names, "virtio_fs")) { + if (!do_mount_root(root_device_name, "virtio_fs", + root_mountflags, root_mount_data)) + return; + + panic("VFS: Unable to mount root fs \"%s\" from virtio_fs", + root_device_name); + } +#endif #ifdef CONFIG_BLOCK { int err = create_dev("/dev/root", ROOT_DEV); -- 2.20.1
