linux-kernel - Re: [PATCH 1/1] VSOCK: Introduce VM Sockets

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Message-ID: <20130125235953.GA4833@hmsreliant.think-freely.org>
Date:	Fri, 25 Jan 2013 18:59:53 -0500
From:	Neil Horman <nhorman@...driver.com>
To:	acking@...are.com
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	virtualization@...ts.linux-foundation.org,
	gregkh@...uxfoundation.org, davem@...emloft.net,
	pv-drivers@...are.com
Subject: Re: [PATCH 1/1] VSOCK: Introduce VM Sockets

On Fri, Jan 25, 2013 at 09:37:50AM -0800, acking@...are.com wrote:
> From: Andy King <acking@...are.com>
> 
> VM Sockets allows communication between virtual machines and the hypervisor.
> User level applications both in a virtual machine and on the host can use the
> VM Sockets API, which facilitates fast and efficient communication between
> guest virtual machines and their host.  A socket address family, designed to be
> compatible with UDP and TCP at the interface level, is provided.
> 
> Today, VM Sockets is used by various VMware Tools components inside the guest
> for zero-config, network-less access to VMware host services.  In addition to
> this, VMware's users are using VM Sockets for various applications, where
> network access of the virtual machine is restricted or non-existent.  Examples
> of this are VMs communicating with device proxies for proprietary hardware
> running as host applications and automated testing of applications running
> within virtual machines.
> 
> The VMware VM Sockets are similar to other socket types, like Berkeley UNIX
> socket interface.  The VM Sockets module supports both connection-oriented
> stream sockets like TCP, and connectionless datagram sockets like UDP. The VM
> Sockets protocol family is defined as "AF_VSOCK" and the socket operations
> split for SOCK_DGRAM and SOCK_STREAM.
> 
> For additional information about the use of VM Sockets, please refer to the VM
> Sockets Programming Guide available at:
> 
> https://www.vmware.com/support/developer/vmci-sdk/
> 
> Signed-off-by: George Zhang <georgezhang@...are.com>
> Signed-off-by: Dmitry Torokhov <dtor@...are.com>
> Signed-off-by: Andy king <acking@...are.com>
> index 0000000..95e2568
> --- /dev/null
> +++ b/net/vmw_vsock/Kconfig
> @@ -0,0 +1,14 @@
> +#
> +# Vsock protocol
> +#
> +
> +config VMWARE_VSOCK
> +	tristate "Virtual Socket protocol"
> +	depends on VMWARE_VMCI
What is CONFIG_VMWARE_VMCI?  I don't find that in any Kconfig in the tree?

I''m still looking over the rest, but I get build issues if I just remove the
dependency.

Neil

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