Commit f84b21da authored Jul 03, 2025 by Mukesh Rathor Committed by Wei Liu Jul 09, 2025

PCI: hv: Don't load the driver for baremetal root partition



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@linux.microsoft.com>
Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
Reviewed-by: Roman Kisel <romank@linux.microsoft.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Link: https://lore.kernel.org/r/1751582677-30930-2-git-send-email-nunodasneves@linux.microsoft.com


Signed-off-by: Wei Liu <wei.liu@kernel.org>
Message-ID: <1751582677-30930-2-git-send-email-nunodasneves@linux.microsoft.com>

parent 9669ddda

drivers/pci/controller/pci-hyperv.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -4144,6 +4144,9 @@ 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;