RE: [Patch v2 1/3] Drivers: hv: vmbus: add support to ignore certain PCIE devices
From: Michael Kelley
Date: Mon Jun 28 2021 - 16:47:16 EST
From: longli@xxxxxxxxxxxxxxxxx <longli@xxxxxxxxxxxxxxxxx> Sent: Friday, June 25, 2021 11:30 PM
>
> Under certain configurations when Hyper-v presents a device to VMBUS, it
> may have a VMBUS channel and a PCIe channel. The PCIe channel is not used
> in Linux and does not have a backing PCIE device on Hyper-v. For such
> devices, ignore those PCIe channels so they are not getting probed by the
> PCI subsystem.
>
> Cc: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> Cc: Haiyang Zhang <haiyangz@xxxxxxxxxxxxx>
> Cc: Stephen Hemminger <sthemmin@xxxxxxxxxxxxx>
> Cc: Wei Liu <wei.liu@xxxxxxxxxx>
> Cc: Dexuan Cui <decui@xxxxxxxxxxxxx>
> Signed-off-by: Long Li <longli@xxxxxxxxxxxxx>
> ---
> drivers/hv/channel_mgmt.c | 48 +++++++++++++++++++++++++++++++++++++++++------
> 1 file changed, 42 insertions(+), 6 deletions(-)
>
Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>