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    Subject[vmw_vmci RFC 00/11] VMCI for Linux
    In an effort to improve the out-of-the-box experience with Linux
    kernels for VMware users, VMware is working on readying the Virtual
    Machine Communication Interface (vmw_vmci) and VMCI Sockets (vmw_vsock) kernel
    modules for inclusion in the Linux kernel. The purpose of this post
    is to acquire feedback on the vmw_vmci kernel module. The vmw_vsock
    kernel module will be presented in a later post.

    VMCI allows virtual machines to communicate with host kernel modules
    and the VMware hypervisors. User level applications both in a virtual
    machine and on the host can use vmw_vmci through VMCI Sockets, a socket
    address family designed to be compatible with UDP and TCP at the
    interface level. Today, VMCI and VMCI Sockets are used by the VMware
    shared folders (HGFS) and 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 VMCI 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.

    In a virtual machine, VMCI is exposed as a regular PCI device. The
    primary communication mechanisms supported are a point-to-point
    bidirectional transport based on a pair of memory-mapped queues, and
    asynchronous notifications in the form of datagrams and
    doorbells. These features are available to kernel level components
    such as HGFS and VMCI Sockets through the VMCI kernel API. In addition
    to this, the VMCI kernel API provides support for receiving events
    related to the state of the VMCI communication channels, and the
    virtual machine itself.

    Outside the virtual machine, the host side support of the VMCI kernel
    module makes the same VMCI kernel API available to VMCI endpoints on
    the host. In addition to this, the host side manages each VMCI device
    in a virtual machine through a context object. This context object
    serves to identify the virtual machine for communication, and to track
    the resource consumption of the given VMCI device. Both operations
    related to communication between the virtual machine and the host
    kernel, and those related to the management of the VMCI device state
    in the host kernel, are invoked by the user level component of the
    hypervisor through a set of ioctls on the VMCI device node. To
    provide seamless support for nested virtualization, where a virtual
    machine may use both a VMCI PCI device to talk to its hypervisor, and
    the VMCI host side support to run nested virtual machines, the VMCI
    host and virtual machine support are combined in a single kernel

    For additional information about the use of VMCI and in particular
    VMCI Sockets, please refer to the VMCI Socket Programming Guide
    available at

    Andrew Stiegmann (stieg) (11):
    Apply VMCI context code
    Apply VMCI datagram code
    Apply VMCI doorbell code
    Apply VMCI driver code
    Apply VMCI event code
    Apply dynamic array code
    Apply VMCI hash table
    Apply VMCI queue pairs
    Apply VMCI resource code
    Apply vmci routing code
    Apply the header code to make VMCI build

    drivers/misc/Kconfig | 1 +
    drivers/misc/Makefile | 1 +
    drivers/misc/vmw_vmci/Kconfig | 16 +
    drivers/misc/vmw_vmci/Makefile | 43 +
    drivers/misc/vmw_vmci/vmci_common_int.h | 72 +
    drivers/misc/vmw_vmci/vmci_context.c | 1743 +++++++++++
    drivers/misc/vmw_vmci/vmci_context.h | 150 +
    drivers/misc/vmw_vmci/vmci_datagram.c | 760 +++++
    drivers/misc/vmw_vmci/vmci_datagram.h | 57 +
    drivers/misc/vmw_vmci/vmci_doorbell.c | 989 +++++++
    drivers/misc/vmw_vmci/vmci_doorbell.h | 57 +
    drivers/misc/vmw_vmci/vmci_driver.c | 2875 ++++++++++++++++++
    drivers/misc/vmw_vmci/vmci_driver.h | 52 +
    drivers/misc/vmw_vmci/vmci_event.c | 614 ++++
    drivers/misc/vmw_vmci/vmci_event.h | 29 +
    drivers/misc/vmw_vmci/vmci_handle_array.c | 300 ++
    drivers/misc/vmw_vmci/vmci_handle_array.h | 50 +
    drivers/misc/vmw_vmci/vmci_hash_table.c | 494 ++++
    drivers/misc/vmw_vmci/vmci_hash_table.h | 56 +
    drivers/misc/vmw_vmci/vmci_queue_pair.c | 4517 +++++++++++++++++++++++++++++
    drivers/misc/vmw_vmci/vmci_queue_pair.h | 258 ++
    drivers/misc/vmw_vmci/vmci_resource.c | 320 ++
    drivers/misc/vmw_vmci/vmci_resource.h | 61 +
    drivers/misc/vmw_vmci/vmci_route.c | 234 ++
    drivers/misc/vmw_vmci/vmci_route.h | 34 +
    include/linux/vmw_vmci_api.h | 103 +
    include/linux/vmw_vmci_defs.h | 1003 +++++++
    27 files changed, 14889 insertions(+), 0 deletions(-)
    create mode 100644 drivers/misc/vmw_vmci/Kconfig
    create mode 100644 drivers/misc/vmw_vmci/Makefile
    create mode 100644 drivers/misc/vmw_vmci/vmci_common_int.h
    create mode 100644 drivers/misc/vmw_vmci/vmci_context.c
    create mode 100644 drivers/misc/vmw_vmci/vmci_context.h
    create mode 100644 drivers/misc/vmw_vmci/vmci_datagram.c
    create mode 100644 drivers/misc/vmw_vmci/vmci_datagram.h
    create mode 100644 drivers/misc/vmw_vmci/vmci_doorbell.c
    create mode 100644 drivers/misc/vmw_vmci/vmci_doorbell.h
    create mode 100644 drivers/misc/vmw_vmci/vmci_driver.c
    create mode 100644 drivers/misc/vmw_vmci/vmci_driver.h
    create mode 100644 drivers/misc/vmw_vmci/vmci_event.c
    create mode 100644 drivers/misc/vmw_vmci/vmci_event.h
    create mode 100644 drivers/misc/vmw_vmci/vmci_handle_array.c
    create mode 100644 drivers/misc/vmw_vmci/vmci_handle_array.h
    create mode 100644 drivers/misc/vmw_vmci/vmci_hash_table.c
    create mode 100644 drivers/misc/vmw_vmci/vmci_hash_table.h
    create mode 100644 drivers/misc/vmw_vmci/vmci_queue_pair.c
    create mode 100644 drivers/misc/vmw_vmci/vmci_queue_pair.h
    create mode 100644 drivers/misc/vmw_vmci/vmci_resource.c
    create mode 100644 drivers/misc/vmw_vmci/vmci_resource.h
    create mode 100644 drivers/misc/vmw_vmci/vmci_route.c
    create mode 100644 drivers/misc/vmw_vmci/vmci_route.h
    create mode 100644 include/linux/vmw_vmci_api.h
    create mode 100644 include/linux/vmw_vmci_defs.h

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      Last update: 2012-05-15 18:42    [W:0.074 / U:2.996 seconds]
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