From: Mukesh Rathor <mrathor@xxxxxxxxxxxxxxxxxxx> The root partition only uses VMBus when running nested. When running on baremetal the Hyper-V PCI driver is not needed, so do not initialize it. Signed-off-by: Mukesh Rathor <mrathor@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Nuno Das Neves <nunodasneves@xxxxxxxxxxxxxxxxxxx> Reviewed-by: Roman Kisel <romank@xxxxxxxxxxxxxxxxxxx> --- drivers/pci/controller/pci-hyperv.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/pci/controller/pci-hyperv.c b/drivers/pci/controller/pci-hyperv.c index b4f29ee75848..4d25754dfe2f 100644 --- a/drivers/pci/controller/pci-hyperv.c +++ b/drivers/pci/controller/pci-hyperv.c @@ -4150,6 +4150,9 @@ static int __init init_hv_pci_drv(void) if (!hv_is_hyperv_initialized()) return -ENODEV; + if (hv_root_partition() && !hv_nested) + return -ENODEV; + ret = hv_pci_irqchip_init(); if (ret) return ret; -- 2.34.1
