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Commit f17bb74f authored by Carl van Schaik's avatar Carl van Schaik Committed by Prakruthi Deepak Heragu
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driver: vservices: Add the vservices framework and core 



Adds the Virtual Services framework and core protocol code.

The Virtual Services framework provides a bus for generic inter-vm
communications using a high level abstract model. The vservices
bus provides support for both HLOS and embedded C clients and servers,
allowing VMs to communicate in a common OS independent manner.

The vservices bus and services over it are hot-plug capable and
can support a wide variety of use cases, including device virtualization
using virtual device protocol (classes) and drivers, similar in
concept to USB or virtio.

Change-Id: I7a696354f59730e0ad340fb92dc85661a7376dee
Signed-off-by: default avatarCarl van Schaik <carl@cog.systems>
Git-commit: 42814676e8bf5fb34060ee80e05e2175ae146292
Git-repo: https://github.com/CogSystems/linux-msm/commits/msm-4.9-hyp


[mnalajal@codeaurora: Resolve trivial merge conflicts]
Signed-off-by: default avatarMurali Nalajala <mnalajal@codeaurora.org>
Signed-off-by: default avatarPrakruthi Deepak Heragu <pheragu@codeaurora.org>
parent 438a81b2

drivers/Kconfig

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@@ -137,6 +137,8 @@ source "drivers/hv/Kconfig" 


source "drivers/xen/Kconfig"



source "drivers/vservices/Kconfig"



source "drivers/staging/Kconfig"



source "drivers/platform/Kconfig"

drivers/Makefile

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Original line number Diff line number Diff line
@@ -11,6 +11,8 @@ obj-y += bus/ 


obj-$(CONFIG_GENERIC_PHY)	+= phy/



obj-$(CONFIG_VSERVICES_SUPPORT)	+= vservices/



# GPIO must come after pinctrl as gpios may need to mux pins etc

obj-$(CONFIG_PINCTRL)		+= pinctrl/

obj-$(CONFIG_GPIOLIB)		+= gpio/

drivers/vservices/Kconfig

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#

# OKL4 Virtual Services framework

#



menuconfig VSERVICES_SUPPORT

	tristate "OKL4 Virtual Services support"

	default OKL4_GUEST || OKL4_VIRTUALISATION

	select HOTPLUG

	help

	  This option adds core support for OKL4 Virtual Services. The Virtual

	  Services framework is an inter-OS device/service sharing

	  protocol which is supported on OKL4 Microvisor virtualization

	  platforms. You will also need drivers from the following menu in

	  order to make use of it.



if VSERVICES_SUPPORT



config VSERVICES_CHAR_DEV

	bool "Virtual Services user-space service API"

	default y

	help

	  Select this if you want to use user-space service drivers. You will

	  also need udev rules that create device nodes, and protocol code

	  generated by the OK Mill tool.



config VSERVICES_DEBUG

	bool "Virtual Services debugging support"

	help

	  Select this if you want to enable Virtual Services core framework

	  debugging. The debug messages for various components of the Virtual

	  Services core framework can be toggled at runtime on a per-session

	  basis via sysfs. When Virtual Services debugging is enabled here,

	  but disabled at runtime it has a minimal performance impact.



config VSERVICES_LOCK_DEBUG

	bool "Debug Virtual Services state locks"

	default DEBUG_KERNEL

	help

	  This option enables some runtime checks that Virtual Services

	  state lock functions are used correctly in service drivers.



config VSERVICES_SERVER

	tristate "Virtual Services server support"

	depends on SYSFS

	default y

	help

	  This option adds support for Virtual Services servers, which allows

	  exporting of services from this Linux to other environments. Servers

	  are created at runtime by writing to files in

	  /sys/bus/vservices-server.



config VSERVICES_CLIENT

	tristate "Virtual Services client support"

	default y

	help

	  This option adds support for Virtual Services clients, which allows

	  connecting to services exported from other environments.



config VSERVICES_SKELETON_DRIVER

	tristate "Virtual Services skeleton driver"

	depends on VSERVICES_SERVER || VSERVICES_CLIENT

	default n

	help

	  This option adds support for a skeleton virtual service driver. This

	  driver can be used for templating or testing of virtual service

	  drivers. If unsure say N.



config VSERVICES_NAMED_DEVICE

	bool "Virtual Services use named device node in /dev"

	default n

	help

	  Select this if you want to use a named device name over a numeric

	  device name in /dev



source "drivers/vservices/transport/Kconfig"



source "drivers/vservices/protocol/Kconfig"



source "drivers/vservices/Kconfig.stacks"



endif # VSERVICES_SUPPORT

drivers/vservices/Kconfig.stacks

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#

# vServices drivers configuration

#



menu "Client and Server drivers"



endmenu

drivers/vservices/Makefile

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ccflags-y += -Werror

ccflags-$(CONFIG_VSERVICES_DEBUG) += -DDEBUG



obj-$(CONFIG_VSERVICES_SUPPORT)	+= vservices.o

vservices-objs-$(CONFIG_VSERVICES_CHAR_DEV) += devio.o

vservices-objs = session.o $(vservices-objs-y)



obj-$(CONFIG_VSERVICES_CLIENT) += core_client.o

obj-$(CONFIG_VSERVICES_SERVER) += core_server.o



obj-$(CONFIG_VSERVICES_SKELETON_DRIVER) += vservices_skeleton_driver.o

vservices_skeleton_driver-objs = skeleton_driver.o



obj-$(CONFIG_VSERVICES_SUPPORT) += protocol/