virtio_mmio_if.m

Version: - FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10

    1 #-
    2 # Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
    3 # All rights reserved.
    4 #
    5 # This software was developed by SRI International and the University of
    6 # Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
    7 # ("CTSRD"), as part of the DARPA CRASH research programme.
    8 #
    9 # Redistribution and use in source and binary forms, with or without
   10 # modification, are permitted provided that the following conditions
   11 # are met:
   12 # 1. Redistributions of source code must retain the above copyright
   13 #    notice, this list of conditions and the following disclaimer.
   14 # 2. Redistributions in binary form must reproduce the above copyright
   15 #    notice, this list of conditions and the following disclaimer in the
   16 #    documentation and/or other materials provided with the distribution.
   17 #
   18 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   19 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   20 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   21 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   22 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   23 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   24 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   25 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   26 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   27 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   28 # SUCH DAMAGE.
   29 #
   30 # $FreeBSD$
   31 #
   32 
   33 #include <sys/types.h>
   34 
   35 #
   36 # This is optional interface to virtio mmio backend.
   37 # Useful when backend is implemented not by the hardware but software, e.g.
   38 # by using another cpu core.
   39 #
   40 
   41 INTERFACE virtio_mmio;
   42 
   43 CODE {
   44         static int
   45         virtio_mmio_prewrite(device_t dev, size_t offset, int val)
   46         {
   47 
   48                 return (1);
   49         }
   50 
   51         static int
   52         virtio_mmio_note(device_t dev, size_t offset, int val)
   53         {
   54 
   55                 return (1);
   56         }
   57 
   58         static int
   59         virtio_mmio_setup_intr(device_t dev, device_t mmio_dev,
   60                                         void *handler, void *ih_user)
   61         {
   62 
   63                 return (1);
   64         }
   65 };
   66 
   67 #
   68 # Inform backend we are going to write data at offset.
   69 #
   70 METHOD int prewrite {
   71         device_t        dev;
   72         size_t          offset;
   73         int             val;
   74 } DEFAULT virtio_mmio_prewrite;
   75 
   76 #
   77 # Inform backend we have data wrotten to offset.
   78 #
   79 METHOD int note {
   80         device_t        dev;
   81         size_t          offset;
   82         int             val;
   83 } DEFAULT virtio_mmio_note;
   84 
   85 #
   86 # Inform backend we are going to poll virtqueue.
   87 #
   88 METHOD int poll {
   89         device_t        dev;
   90 };
   91 
   92 #
   93 # Setup backend-specific interrupts.
   94 #
   95 METHOD int setup_intr {
   96         device_t        dev;
   97         device_t        mmio_dev;
   98         void            *handler;
   99         void            *ih_user;
  100 } DEFAULT virtio_mmio_setup_intr;

Cache object: 275d9a5d9dc012ac0851bbce9508644a

[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.

FreeBSD/Linux Kernel Cross Reference sys/dev/virtio/mmio/virtio_mmio_if.m

FreeBSD/Linux Kernel Cross Reference
sys/dev/virtio/mmio/virtio_mmio_if.m