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diff --git a/sys/dev/virtio/mmio/virtio_mmio_if.m b/sys/dev/virtio/mmio/virtio_mmio_if.m
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-#-
-# Copyright (c) 2014 Ruslan Bukin <br@bsdpad.com>
-# All rights reserved.
-#
-# This software was developed by SRI International and the University of
-# Cambridge Computer Laboratory under DARPA/AFRL contract (FA8750-10-C-0237)
-# ("CTSRD"), as part of the DARPA CRASH research programme.
-#
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions
-# are met:
-# 1. Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-# 2. Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-#
-# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
-# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
-# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-# SUCH DAMAGE.
-#
-#
-
-#include <sys/types.h>
-
-#
-# This is optional interface to virtio mmio backend.
-# Useful when backend is implemented not by the hardware but software, e.g.
-# by using another cpu core.
-#
-
-INTERFACE virtio_mmio;
-
-CODE {
- static int
- virtio_mmio_prewrite(device_t dev, size_t offset, int val)
- {
-
- return (1);
- }
-
- static int
- virtio_mmio_note(device_t dev, size_t offset, int val)
- {
-
- return (1);
- }
-
- static int
- virtio_mmio_setup_intr(device_t dev, device_t mmio_dev,
- void *handler, void *ih_user)
- {
-
- return (1);
- }
-};
-
-#
-# Inform backend we are going to write data at offset.
-#
-METHOD int prewrite {
- device_t dev;
- size_t offset;
- int val;
-} DEFAULT virtio_mmio_prewrite;
-
-#
-# Inform backend we have data wrotten to offset.
-#
-METHOD int note {
- device_t dev;
- size_t offset;
- int val;
-} DEFAULT virtio_mmio_note;
-
-#
-# Inform backend we are going to poll virtqueue.
-#
-METHOD int poll {
- device_t dev;
-};
-
-#
-# Setup backend-specific interrupts.
-#
-METHOD int setup_intr {
- device_t dev;
- device_t mmio_dev;
- void *handler;
- void *ih_user;
-} DEFAULT virtio_mmio_setup_intr;