[PATCH 1/4] PCI: hv: Do not do vmbus initialization on baremetal

Nuno Das Neves
2025-06-11T00:03:38Z

From: Mukesh Rathor <mrathor@linux.microsoft.com>

init_hv_pci_drv() is not relevant for root partition on baremetal as there
is no vmbus. On nested (with a Windows L1 root), vmbus is present.

Signed-off-by: Mukesh Rathor <mrathor@linux.microsoft.com>
Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
---
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