On Thu, Jul 03, 2025 at 03:44:32PM -0700, Nuno Das Neves wrote:
> From: Mukesh Rathor <mrathor@linux.microsoft.com>
>
> 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>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
I assume this series will be merged elsewhere.
> ---
> 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
>