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

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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>
This commit is contained in:
Mukesh Rathor 2025-07-03 15:44:32 -07:00 committed by Wei Liu
parent 9669ddda18
commit f84b21da36
1 changed files with 3 additions and 0 deletions
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3
drivers/pci/controller/pci-hyperv.c
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@ -4144,6 +4144,9 @@ static int __init init_hv_pci_drv(void)
if (!hv_is_hyperv_initialized()) if (!hv_is_hyperv_initialized())
return -ENODEV; return -ENODEV;
if (hv_root_partition() && !hv_nested)
return -ENODEV;
ret = hv_pci_irqchip_init(); ret = hv_pci_irqchip_init();
if (ret) if (ret)
return ret; return ret;