linux-kernel - [PATCH v4 0/2] vmbus: Add DeviceTree support for message connection-id

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Message-Id: <1750374395-14615-1-git-send-email-hargar@linux.microsoft.com>
Date: Thu, 19 Jun 2025 16:06:33 -0700
From: Hardik Garg <hargar@...ux.microsoft.com>
To: kys@...rosoft.com,
	haiyangz@...rosoft.com,
	wei.liu@...nel.org,
	decui@...rosoft.com,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org
Cc: devicetree@...r.kernel.org,
	linux-hyperv@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	ssengar@...ux.microsoft.com,
	hargar@...rosoft.com,
	apais@...rosoft.com,
	Hardik Garg <hargar@...ux.microsoft.com>
Subject: [PATCH v4 0/2] vmbus: Add DeviceTree support for message connection-id

This patch series adds support for configuring the VMBus message connection-id
through DeviceTree. The connection-id determines which hypervisor communication
channel the guest should use to talk to the VMBus host.

Changes in v4:
- Split the patch into two separate patches:
  * DeviceTree bindings documentation
  * Implementation changes
- Fix warnings reported by checkpatch

Changes in v3:
- https://lore.kernel.org/all/6a92ca86-ad6b-4d49-af6e-1ed7651b8ab8@linux.microsoft.com/

Changes in v2:
- https://lore.kernel.org/all/096edaf7-cc90-42b6-aff4-c5f088574e1e@linux.microsoft.com/

Changes in v1:
- https://lore.kernel.org/all/6acee4bf-cb04-43b9-9476-e8d811d26dfd@linux.microsoft.com/

The series consists of two patches:
1. dt-bindings: microsoft: Add vmbus message-connection-id property
2. vmbus: retrieve connection-id from DeviceTree

Testing:
- Tested on Microsoft Hyper-V
- Verified with and without the DeviceTree property
- Confirmed proper fallback to default values
- Validated binding documentation with dt_binding_check

Hardik Garg (2):
  dt-bindings: microsoft: Add vmbus message-connection-id property
  vmbus: retrieve connection-id from DeviceTree

 Documentation/devicetree/bindings/bus/microsoft,vmbus.yaml |  9 +++++++++
 drivers/hv/connection.c                                    |  6 ++++--
 drivers/hv/vmbus_drv.c                                    | 13 +++++++++++++
 3 files changed, 26 insertions(+), 2 deletions(-)

-- 
2.40.4