There is no VMBus and the other infrastructures initialized in hv_acpi_init when Linux is running as the root partition. Signed-off-by: Wei Liu <wei.liu@xxxxxxxxxx> --- drivers/hv/vmbus_drv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 4fad3e6745e5..37c4d3a28309 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -2612,6 +2612,9 @@ static int __init hv_acpi_init(void) if (!hv_is_hyperv_initialized()) return -ENODEV; + if (hv_root_partition) + return -ENODEV; + init_completion(&probe_event); /* -- 2.20.1
