Commit 94b04355 authored by Mukesh Rathor's avatar Mukesh Rathor Committed by Wei Liu
Browse files

Drivers: hv: Add CONFIG_HYPERV_VMBUS option 



At present VMBus driver is hinged off of CONFIG_HYPERV which entails
lot of builtin code and encompasses too much. It's not always clear
what depends on builtin hv code and what depends on VMBus. Setting
CONFIG_HYPERV as a module and fudging the Makefile to switch to builtin
adds even more confusion. VMBus is an independent module and should have
its own config option. Also, there are scenarios like baremetal dom0/root
where support is built in with CONFIG_HYPERV but without VMBus. Lastly,
there are more features coming down that use CONFIG_HYPERV and add more
dependencies on it.

So, create a fine grained HYPERV_VMBUS option and update Kconfigs for
dependency on VMBus.

Signed-off-by: default avatarMukesh Rathor <mrathor@linux.microsoft.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>	# drivers/pci
Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
parent a3a4d6cb

drivers/gpu/drm/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -398,7 +398,7 @@ source "drivers/gpu/drm/imagination/Kconfig" 


config DRM_HYPERV

	tristate "DRM Support for Hyper-V synthetic video device"

	depends on DRM && PCI && HYPERV

	depends on DRM && PCI && HYPERV_VMBUS

	select DRM_CLIENT_SELECTION

	select DRM_KMS_HELPER

	select DRM_GEM_SHMEM_HELPER

drivers/hid/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -1162,7 +1162,7 @@ config GREENASIA_FF 


config HID_HYPERV_MOUSE

	tristate "Microsoft Hyper-V mouse driver"

	depends on HYPERV

	depends on HYPERV_VMBUS

	help

	Select this option to enable the Hyper-V mouse driver.

drivers/hv/Kconfig

+9 −2
Original line number Diff line number Diff line
@@ -45,18 +45,25 @@ config HYPERV_TIMER 


config HYPERV_UTILS

	tristate "Microsoft Hyper-V Utilities driver"

	depends on HYPERV && CONNECTOR && NLS

	depends on HYPERV_VMBUS && CONNECTOR && NLS

	depends on PTP_1588_CLOCK_OPTIONAL

	help

	  Select this option to enable the Hyper-V Utilities.



config HYPERV_BALLOON

	tristate "Microsoft Hyper-V Balloon driver"

	depends on HYPERV

	depends on HYPERV_VMBUS

	select PAGE_REPORTING

	help

	  Select this option to enable Hyper-V Balloon driver.



config HYPERV_VMBUS

	tristate "Microsoft Hyper-V VMBus driver"

	depends on HYPERV

	default HYPERV

	help

	  Select this option to enable Hyper-V Vmbus driver.



config MSHV_ROOT

	tristate "Microsoft Hyper-V root partition support"

	depends on HYPERV && (X86_64 || ARM64)

drivers/hv/Makefile

+1 −1
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0

obj-$(CONFIG_HYPERV)		+= hv_vmbus.o

obj-$(CONFIG_HYPERV_VMBUS)	+= hv_vmbus.o

obj-$(CONFIG_HYPERV_UTILS)	+= hv_utils.o

obj-$(CONFIG_HYPERV_BALLOON)	+= hv_balloon.o

obj-$(CONFIG_MSHV_ROOT)		+= mshv_root.o

drivers/input/serio/Kconfig

+2 −2
Original line number Diff line number Diff line
@@ -276,8 +276,8 @@ config SERIO_OLPC_APSP 


config HYPERV_KEYBOARD

	tristate "Microsoft Synthetic Keyboard driver"

	depends on HYPERV

	default HYPERV

	depends on HYPERV_VMBUS

	default HYPERV_VMBUS

	help

	  Select this option to enable the Hyper-V Keyboard driver.