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Diffstat (limited to 'src/dev/baddev.hh')
-rw-r--r-- | src/dev/baddev.hh | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/dev/baddev.hh b/src/dev/baddev.hh new file mode 100644 index 000000000..35ae0382a --- /dev/null +++ b/src/dev/baddev.hh @@ -0,0 +1,72 @@ +/* + * Copyright (c) 2004-2005 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * 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; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT + * OWNER 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. + */ + +/** @file + * This devices just panics when touched. For example if you have a + * kernel that touches the frame buffer which isn't allowed. + */ + +#ifndef __DEV_BADDEV_HH__ +#define __DEV_BADDEV_HH__ + +#include "base/range.hh" +#include "dev/io_device.hh" + + +/** + * BadDevice + * This device just panics when accessed. It is supposed to warn + * the user that the kernel they are running has unsupported + * options (i.e. frame buffer) + */ +class BadDevice : public BasicPioDevice +{ + private: + std::string devname; + + public: + struct Params : public BasicPioDevice::Params + { + std::string device_name; + }; + protected: + const Params *params() const { return (const Params *)_params; } + + public: + /** + * Constructor for the Baddev Class. + * @param p object parameters + * @param a base address of the write + */ + BadDevice(Params *p); + + virtual Tick read(Packet *pkt); + virtual Tick write(Packet *pkt); +}; + +#endif // __DEV_BADDEV_HH__ |