| 1 |
dpavlin |
12 |
<html><head><title>Gavare's eXperimental Emulator: Configuration files</title> |
| 2 |
|
|
<meta name="robots" content="noarchive,nofollow,noindex"></head> |
| 3 |
dpavlin |
4 |
<body bgcolor="#f8f8f8" text="#000000" link="#4040f0" vlink="#404040" alink="#ff0000"> |
| 4 |
|
|
<table border=0 width=100% bgcolor="#d0d0d0"><tr> |
| 5 |
|
|
<td width=100% align=center valign=center><table border=0 width=100%><tr> |
| 6 |
|
|
<td align="left" valign=center bgcolor="#d0efff"><font color="#6060e0" size="6"> |
| 7 |
dpavlin |
22 |
<b>Gavare's eXperimental Emulator:</b></font><br> |
| 8 |
dpavlin |
4 |
<font color="#000000" size="6"><b>Configuration files</b> |
| 9 |
|
|
</font></td></tr></table></td></tr></table><p> |
| 10 |
dpavlin |
2 |
|
| 11 |
|
|
<!-- |
| 12 |
|
|
|
| 13 |
dpavlin |
22 |
$Id: configfiles.html,v 1.19 2006/02/18 15:18:15 debug Exp $ |
| 14 |
dpavlin |
2 |
|
| 15 |
dpavlin |
22 |
Copyright (C) 2003-2006 Anders Gavare. All rights reserved. |
| 16 |
dpavlin |
2 |
|
| 17 |
|
|
Redistribution and use in source and binary forms, with or without |
| 18 |
|
|
modification, are permitted provided that the following conditions are met: |
| 19 |
|
|
|
| 20 |
|
|
1. Redistributions of source code must retain the above copyright |
| 21 |
|
|
notice, this list of conditions and the following disclaimer. |
| 22 |
|
|
2. Redistributions in binary form must reproduce the above copyright |
| 23 |
|
|
notice, this list of conditions and the following disclaimer in the |
| 24 |
|
|
documentation and/or other materials provided with the distribution. |
| 25 |
|
|
3. The name of the author may not be used to endorse or promote products |
| 26 |
|
|
derived from this software without specific prior written permission. |
| 27 |
|
|
|
| 28 |
|
|
THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 29 |
|
|
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 30 |
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 31 |
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 32 |
|
|
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 33 |
|
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 34 |
|
|
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 35 |
|
|
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 36 |
|
|
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 37 |
|
|
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 38 |
|
|
SUCH DAMAGE. |
| 39 |
|
|
|
| 40 |
|
|
--> |
| 41 |
|
|
|
| 42 |
|
|
<a href="./">Back to the index</a> |
| 43 |
|
|
|
| 44 |
|
|
<p><br> |
| 45 |
|
|
<h2>Configuration files</h2> |
| 46 |
|
|
|
| 47 |
|
|
<p> |
| 48 |
|
|
<ul> |
| 49 |
|
|
<li><a href="#config">Configuration file syntax</a> |
| 50 |
|
|
<li><a href="#minimal">A minimal example</a> |
| 51 |
dpavlin |
10 |
<li><a href="#multihost">Network across multiple hosts</a> |
| 52 |
dpavlin |
2 |
</ul> |
| 53 |
|
|
|
| 54 |
|
|
|
| 55 |
|
|
|
| 56 |
|
|
|
| 57 |
|
|
<p><br> |
| 58 |
|
|
<a name="config"></a> |
| 59 |
|
|
<h3>Configuration file syntax:</h3> |
| 60 |
|
|
|
| 61 |
|
|
Configuration files are simple text files. I don't have time to write |
| 62 |
|
|
down a formal syntax right now, so I hope that conveying the syntax |
| 63 |
|
|
through an example is good enough: |
| 64 |
|
|
|
| 65 |
|
|
<p> |
| 66 |
|
|
<table border="0"><tr><td width="40"> </td><td> |
| 67 |
|
|
<pre> |
| 68 |
|
|
<font color="#2020cf">!!gxemul <-- configuration files must start like this |
| 69 |
|
|
! |
| 70 |
|
|
! This is an example configuration file for GXemul. |
| 71 |
|
|
! Anything following an exclamation mark (and also the exclamation |
| 72 |
|
|
! mark itself) is ignored. |
| 73 |
|
|
! |
| 74 |
|
|
! Each configuration file should contain one emul entry. Almost |
| 75 |
|
|
! everything else is optional.</font> |
| 76 |
|
|
|
| 77 |
|
|
<b>emul(</b> |
| 78 |
|
|
<b>name(<font color="#ff003f">"my test emul"</font>)</b> <font color="#2020cf">! Optional name of this emulation</font> |
| 79 |
|
|
|
| 80 |
dpavlin |
10 |
<font color="#2020cf">! This creates an ethernet network:</font> |
| 81 |
dpavlin |
2 |
<b>net(</b> |
| 82 |
|
|
<b>ipv4net(<font color="#ff003f">"10.2.0.0"</font>)</b> <font color="#2020cf">! The default is 10.0.0.0/8, but</font> |
| 83 |
|
|
<b>ipv4len(16)</b> <font color="#2020cf">! it can be overridden like this.</font> |
| 84 |
dpavlin |
10 |
<font color="#2020cf">! local_port(12345)</font> |
| 85 |
dpavlin |
12 |
<font color="#2020cf">! add_remote("localhost:12346")</font> |
| 86 |
dpavlin |
2 |
<b>)</b> |
| 87 |
|
|
|
| 88 |
|
|
<font color="#2020cf">! This creates a machine:</font> |
| 89 |
|
|
<b>machine(</b> |
| 90 |
|
|
<b>name(<font color="#ff003f">"My test machine"</font>)</b> |
| 91 |
|
|
|
| 92 |
|
|
<font color="#2020cf">! serial_nr(123) ! Useful when emulating multiple machines</font> |
| 93 |
|
|
<font color="#2020cf"> ! on multiple hosts, and they need to have</font> |
| 94 |
|
|
<font color="#2020cf"> ! unique MAC addresses, etc.</font> |
| 95 |
|
|
|
| 96 |
|
|
<b>type(<font color="#ff003f">"dec"</font>)</b> <font color="#2020cf">! This is actually not optional</font> |
| 97 |
|
|
<b>subtype(<font color="#ff003f">"5000/200"</font>)</b> |
| 98 |
|
|
|
| 99 |
dpavlin |
6 |
<b>cpu(<font color="#ff003f">"R3000"</font>)</b> <font color="#2020cf">! Normally set implicitly to a reasonable</font> |
| 100 |
dpavlin |
2 |
<font color="#2020cf">! value, depending on <i>type</i> and <i>subtype</i></font> |
| 101 |
|
|
|
| 102 |
|
|
<font color="#2020cf">! ncpus(4)</font> |
| 103 |
|
|
<font color="#2020cf">! use_random_bootstrap_cpu(yes)</font> |
| 104 |
|
|
|
| 105 |
|
|
<b>memory(128)</b> <font color="#2020cf">! 128 MB memory. This overrides</font> |
| 106 |
|
|
<font color="#2020cf">! the default amount of memory for</font> |
| 107 |
|
|
<font color="#2020cf">! this machine type.</font> |
| 108 |
|
|
|
| 109 |
|
|
<font color="#2020cf">! random_mem_contents(yes)</font> |
| 110 |
|
|
|
| 111 |
|
|
<font color="#2020cf">! prom_emulation(no)</font> |
| 112 |
|
|
|
| 113 |
|
|
<font color="#2020cf">! byte_order(big) ! Normally set implicitly (because</font> |
| 114 |
|
|
<font color="#2020cf">! of <i>type</i> and <i>subtype</i>, or decided</font> |
| 115 |
|
|
<font color="#2020cf">! from the file loaded with <i>load</i></font> |
| 116 |
|
|
|
| 117 |
|
|
<b>load(<font color="#ff003f">"netbsd-INSTALL"</font>)</b> |
| 118 |
|
|
<b>bootname(<font color="#ff003f">"netbsd"</font>)</b> |
| 119 |
|
|
<b>bootarg(<font color="#ff003f">"-a"</font>)</b> |
| 120 |
|
|
|
| 121 |
|
|
<font color="#2020cf">! n_gfx_cards(2) ! for DECstation dual/tripple-head</font> |
| 122 |
|
|
<font color="#2020cf">! emulated_hz(10000000) ! for fixing the emulated clock speed</font> |
| 123 |
|
|
|
| 124 |
|
|
<font color="#2020cf">! add_x11_display("otherbox:0") ! for dual/tripple-head etc</font> |
| 125 |
|
|
<font color="#2020cf">! add_x11_display("thisbox:0")</font> |
| 126 |
|
|
|
| 127 |
|
|
<font color="#2020cf">{ |
| 128 |
|
|
Devices can be added like this: |
| 129 |
|
|
|
| 130 |
|
|
device("8250 addr=0x18000800 addr_mult=4") |
| 131 |
|
|
|
| 132 |
|
|
The name comes first, followed by optional parameters. |
| 133 |
|
|
Remember to use 0x for hexadecimal values. |
| 134 |
|
|
}</font> |
| 135 |
|
|
|
| 136 |
|
|
<font color="#2020cf">! force_netboot(yes)</font> |
| 137 |
|
|
<font color="#2020cf">! start_paused(yes)</font> |
| 138 |
|
|
|
| 139 |
dpavlin |
12 |
<font color="#2020cf">! max_random_cycles(5)</font> |
| 140 |
|
|
|
| 141 |
dpavlin |
2 |
<b>disk(<font color="#ff003f">"nbsd.img"</font>)</b> |
| 142 |
|
|
<b>disk(<font color="#ff003f">"6c:cdrom.iso"</font>)</b> |
| 143 |
|
|
|
| 144 |
|
|
<b>use_x11(yes)</b> |
| 145 |
|
|
<b>x11_scaledown(2)</b> |
| 146 |
|
|
|
| 147 |
|
|
<font color="#2020cf">! bintrans(disable)</font> |
| 148 |
|
|
<font color="#2020cf">! old_bintrans(enable)</font> |
| 149 |
|
|
<font color="#2020cf">! bintrans_size(24)</font> |
| 150 |
|
|
|
| 151 |
|
|
<font color="#2020cf">! slow_serial_interrupts_hack_for_linux(yes)</font> |
| 152 |
|
|
|
| 153 |
|
|
<font color="#2020cf">! debugger_on_badaddr(yes)</font> |
| 154 |
|
|
|
| 155 |
|
|
<font color="#2020cf">{ |
| 156 |
|
|
Long comments spanning multiple lines should be surrounded |
| 157 |
|
|
with tuborg parentheses. |
| 158 |
|
|
|
| 159 |
|
|
{ Long comments can be nested. } |
| 160 |
|
|
<!-- |
| 161 |
|
|
<b><i>... TODO ... |
| 162 |
|
|
-i display each instruction as it is executed |
| 163 |
|
|
-J disable some speed tricks |
| 164 |
|
|
-m nr run at most nr instructions (on any cpu) |
| 165 |
|
|
-N display nr of instructions/second average, at regular intervals |
| 166 |
|
|
-p pc add a breakpoint (remember to use the '0x' prefix for hex!) |
| 167 |
|
|
-r register dumps before every instruction |
| 168 |
|
|
-t show function trace tree |
| 169 |
|
|
-y x set max_random_cycles_per_chunk to x (experimental) |
| 170 |
|
|
</i></b>--> |
| 171 |
|
|
}</font> |
| 172 |
|
|
|
| 173 |
|
|
<b>)</b> |
| 174 |
|
|
|
| 175 |
|
|
<font color="#2020cf">! Multiple machine are allowed.</font> |
| 176 |
|
|
<b>machine(</b> |
| 177 |
|
|
<b>name(<font color="#ff003f">"another machine"</font>)</b> |
| 178 |
|
|
<b>type(<font color="#ff003f">"hpcmips"</font>)</b> |
| 179 |
|
|
<b>subtype(<font color="#ff003f">"be300"</font>)</b> |
| 180 |
|
|
|
| 181 |
|
|
<i>...</i> |
| 182 |
|
|
<b>)</b> |
| 183 |
|
|
<b>)</b> |
| 184 |
|
|
</pre> |
| 185 |
|
|
</td></tr></table> |
| 186 |
|
|
|
| 187 |
|
|
<p> |
| 188 |
|
|
Starting the emulator with a configuration file is as simple as |
| 189 |
|
|
|
| 190 |
|
|
<pre> |
| 191 |
dpavlin |
10 |
$ <b>gxemul @myconfig</b> |
| 192 |
dpavlin |
2 |
</pre> |
| 193 |
|
|
|
| 194 |
|
|
if <b>myconfig</b> is the name of the configuration file. |
| 195 |
|
|
|
| 196 |
|
|
|
| 197 |
|
|
|
| 198 |
|
|
|
| 199 |
|
|
|
| 200 |
|
|
|
| 201 |
dpavlin |
10 |
|
| 202 |
|
|
|
| 203 |
dpavlin |
2 |
<p><br> |
| 204 |
|
|
<a name="minimal"></a> |
| 205 |
|
|
<h3>A minimal example:</h3> |
| 206 |
|
|
|
| 207 |
|
|
Here is an example of what a minimal configuration file might look like: |
| 208 |
|
|
|
| 209 |
dpavlin |
10 |
<p><table border="0"><tr><td width="40"> </td><td><pre> |
| 210 |
dpavlin |
2 |
<font color="#2020cf">!!gxemul</font> |
| 211 |
|
|
<b>emul(</b> |
| 212 |
|
|
<b>machine(</b> |
| 213 |
|
|
<b>subtype(<font color="#ff003f">"3max"</font>)</b> |
| 214 |
|
|
<b>load(<font color="#ff003f">"netbsd-pmax-INSTALL-2.0"</font>)</b> |
| 215 |
|
|
<b>)</b> |
| 216 |
|
|
<b>)</b> |
| 217 |
|
|
</pre> |
| 218 |
|
|
</td></tr></table> |
| 219 |
|
|
|
| 220 |
dpavlin |
12 |
<p>For most machine types, <tt>type</tt> is needed. If only |
| 221 |
|
|
<tt>subtype</tt> is specified, and the name is unique (i.e. there is only |
| 222 |
|
|
one major type which has such a subtype), then the <tt>type</tt> can be |
| 223 |
|
|
omitted. Also, adding a <tt>net</tt> is quite useful, especially for |
| 224 |
dpavlin |
2 |
netbooting kernels. |
| 225 |
|
|
|
| 226 |
|
|
|
| 227 |
|
|
|
| 228 |
|
|
|
| 229 |
|
|
|
| 230 |
dpavlin |
10 |
|
| 231 |
|
|
<p><br> |
| 232 |
|
|
<a name="multihost"></a> |
| 233 |
|
|
<h3>Network across multiple hosts:</h3> |
| 234 |
|
|
|
| 235 |
dpavlin |
20 |
<p>It is possible to add multiple <tt>machine</tt> entries into one |
| 236 |
|
|
configuration file. This will cause the emulator to try to run all those |
| 237 |
|
|
machines simultaneously. An alternative (and better) solution for doing |
| 238 |
|
|
this, which gives higher reliability (stability) and performance, is to |
| 239 |
dpavlin |
22 |
have one configuration file per emulated machine. |
| 240 |
dpavlin |
10 |
|
| 241 |
dpavlin |
20 |
<p><table border="0" width="100%"><tr><td width="40"> </td> |
| 242 |
|
|
<td><pre> |
| 243 |
|
|
<font color="#2020cf">!!gxemul |
| 244 |
|
|
! |
| 245 |
|
|
! Configuration file for a |
| 246 |
|
|
! "client" machine, netbooting |
| 247 |
|
|
! of another machine.</font> |
| 248 |
dpavlin |
10 |
|
| 249 |
|
|
<b>emul(</b> |
| 250 |
|
|
<b>net(</b> |
| 251 |
|
|
<b>local_port(15000)</b> |
| 252 |
dpavlin |
12 |
<b>add_remote(<font color="#ff003f">"localhost:15001"</font>)</b> |
| 253 |
dpavlin |
10 |
<b>)</b> |
| 254 |
|
|
<b>machine(</b> |
| 255 |
dpavlin |
20 |
<b>name(<font color="#ff003f">"client machine"</font>)</b> |
| 256 |
|
|
<b>serial_nr(1)</b> <font color="#2020cf">! 10.0.0.1</font> |
| 257 |
|
|
|
| 258 |
|
|
<b>type(<font color="#ff003f">"sgi"</font>)</b> |
| 259 |
|
|
<b>subtype(<font color="#ff003f">"o2"</font>)</b> |
| 260 |
|
|
<b>load(<font color="#ff003f">"netbsd-GENERIC32_IP3x.gz"</font>)</b> |
| 261 |
|
|
<b>)</b> |
| 262 |
|
|
<b>)</b></pre></td><td width="20"> </td><td><pre> |
| 263 |
|
|
<font color="#2020cf">!!gxemul |
| 264 |
|
|
! |
| 265 |
|
|
! Configuration file for the |
| 266 |
|
|
! "server" machine.</font> |
| 267 |
|
|
! |
| 268 |
|
|
|
| 269 |
|
|
<b>emul(</b> |
| 270 |
|
|
<b>net(</b> |
| 271 |
|
|
<b>local_port(15001)</b> |
| 272 |
|
|
<b>add_remote(<font color="#ff003f">"localhost:15000"</font>)</b> |
| 273 |
|
|
<b>)</b> |
| 274 |
|
|
<b>machine(</b> |
| 275 |
|
|
<b>name(<font color="#ff003f">"nfs server"</font>)</b> |
| 276 |
|
|
<b>serial_nr(2)</b> <font color="#2020cf">! 10.0.0.2</font> |
| 277 |
|
|
|
| 278 |
dpavlin |
10 |
<b>type(<font color="#ff003f">"dec"</font>)</b> |
| 279 |
|
|
<b>subtype(<font color="#ff003f">"3max"</font>)</b> |
| 280 |
dpavlin |
20 |
<b>disk(<font color="#ff003f">"nbsd_pmax.img"</font>)</b> |
| 281 |
dpavlin |
10 |
<b>)</b> |
| 282 |
dpavlin |
20 |
<b>)</b></pre></td><td width="20"> </td></tr></table> |
| 283 |
dpavlin |
10 |
|
| 284 |
|
|
<p>This example creates a network using the default settings (10.0.0.0/8), |
| 285 |
|
|
but it also allows the network to be connected to other emulator |
| 286 |
|
|
instances. <tt>local_port(15000)</tt> means that anything coming in to |
| 287 |
|
|
UDP port 15000 on the host is added to the network. All ethernet packets |
| 288 |
|
|
on the network are also sent out to all other connected machines (those |
| 289 |
dpavlin |
12 |
added with <tt>add_remote()</tt>). |
| 290 |
dpavlin |
10 |
|
| 291 |
dpavlin |
20 |
<p>As you can see in the example, this is a configuration file for |
| 292 |
|
|
netbooting a NetBSD/sgimips diskless machine, with a NetBSD/pmax machine |
| 293 |
|
|
acting as the nfs server. Note that the nfs server has ports 15000 and |
| 294 |
|
|
15001 reversed! |
| 295 |
dpavlin |
10 |
|
| 296 |
dpavlin |
20 |
<p>"<tt>localhost</tt>" can be changed to the Internet hostname of a |
| 297 |
|
|
remote machine, to run the simulation across a physical network. |
| 298 |
dpavlin |
10 |
|
| 299 |
dpavlin |
20 |
<p><font color="#ff0000"><b>NOTE:</b> There is no error checking or |
| 300 |
|
|
security checking of any kind. All UDP packets arriving at the input port |
| 301 |
|
|
are added to the emulated ethernet. This is not very good of course; use |
| 302 |
|
|
this feature at your own risk.</font> |
| 303 |
dpavlin |
10 |
|
| 304 |
|
|
|
| 305 |
|
|
|
| 306 |
dpavlin |
20 |
|
| 307 |
dpavlin |
2 |
</p> |
| 308 |
|
|
|
| 309 |
|
|
</body> |
| 310 |
|
|
</html> |
Parent Directory
| 
Revision Log