So why the QEMU documentation states in this way ?<div><br></div><div><p style="font-family: &#39;Times New Roman&#39;; font-size: medium; ">Use the executable ‘<tt>qemu-system-ppc</tt>’ to simulate a complete PREP or PowerMac PowerPC system.</p>
<p style="font-family: &#39;Times New Roman&#39;; font-size: medium; ">QEMU emulates the following PowerMac peripherals:</p><ul class="toc" style="list-style-type: none; list-style-position: initial; list-style-image: initial; font-family: &#39;Times New Roman&#39;; font-size: medium; ">
<li>- UniNorth or Grackle PCI Bridge</li><li>- PCI VGA compatible card with VESA Bochs Extensions</li><li>- 2 PMAC IDE interfaces with hard disk and CD-ROM support</li><li>- NE2000 PCI adapters</li><li>- Non Volatile RAM</li>
<li>- VIA-CUDA with ADB keyboard and mouse.</li></ul><p style="font-family: &#39;Times New Roman&#39;; font-size: medium; ">QEMU emulates the following PREP peripherals:</p><ul class="toc" style="list-style-type: none; list-style-position: initial; list-style-image: initial; font-family: &#39;Times New Roman&#39;; font-size: medium; ">
<li>- PCI Bridge</li><li>- PCI VGA compatible card with VESA Bochs Extensions</li><li>- 2 IDE interfaces with hard disk and CD-ROM support</li><li>- Floppy disk</li><li>- NE2000 network adapters</li><li>- Serial port</li>
<li>- PREP Non Volatile RAM</li><li>- PC compatible keyboard and mouse.</li></ul><p style="font-family: &#39;Times New Roman&#39;; font-size: medium; ">QEMU uses the Open Hack’Ware Open Firmware Compatible BIOS available at <a href="http://perso.magic.fr/l_indien/OpenHackWare/index.htm">http://perso.magic.fr/l_indien/OpenHackWare/index.htm</a>.</p>
<p style="font-family: &#39;Times New Roman&#39;; font-size: medium; ">Since version 0.9.1, QEMU uses OpenBIOS <a href="http://www.openbios.org/">http://www.openbios.org/</a> for the g3beige and mac99 PowerMac machines. OpenBIOS is a free (GPL v2) portable firmware implementation. The goal is to implement a 100% IEEE 1275-1994 (referred to as Open Firmware) compliant firmware.</p>
<p style="font-family: &#39;Times New Roman&#39;; font-size: medium; ">The following options are specific to the PowerPC emulation:</p><dl compact style="font-family: &#39;Times New Roman&#39;; font-size: medium; "><dt>‘<samp>-g <var>W</var>x<var>H</var>[x<var>DEPTH</var>]</samp>’</dt>
<dd><p>Set the initial VGA graphic mode. The default is 800x600x15.</p></dd><dt>‘<samp>-prom-env <var>string</var></samp>’</dt><dd><p>Set OpenBIOS variables in NVRAM, for example:</p><table><tbody><tr><td> </td><td><pre class="example">
qemu-system-ppc -prom-env &#39;auto-boot?=false&#39; \
 -prom-env &#39;boot-device=hd:2,\yaboot&#39; \
 -prom-env &#39;boot-args=conf=hd:2,\yaboot.conf&#39;
</pre></td></tr></tbody></table><p>These variables are not used by Open Hack’Ware.</p></dd></dl><p style="font-family: &#39;Times New Roman&#39;; font-size: medium; ">More information is available at <a href="http://perso.magic.fr/l_indien/qemu-ppc/">http://perso.magic.fr/l_indien/qemu-ppc/</a>.</p>
<p style="font-family: &#39;Times New Roman&#39;; font-size: medium; "><br></p><p style="font-family: &#39;Times New Roman&#39;; font-size: medium; ">Thanks, sorry and ciao</p><br><div class="gmail_quote">2010/9/16 Laurent Vivier <span dir="ltr">&lt;<a href="mailto:Laurent@vivier.eu">Laurent@vivier.eu</a>&gt;</span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div class="im"> <br>
&gt; OK, maybe I make a mistake. It&#39;s not a problem.<br>
&gt; My goals is to run AIX 4.3, 5.1 and 6.1 on QEMU!!!!!.<br>
&gt; Can you help me? What you suggest? <br>
&gt; I think there is a lot of confusion ( I also make confusion).<br>
&gt; How I can run QEMU to &quot;emulate&quot; CHRP platform ?<br>
<br>
</div>By default, qemu-system-ppc emulates a CHRP.<br>
<br>
To run AIX 4.3 and 5.1 you can use a 32bit machine (qemu-system-ppc), to run AIX 6.1 you need a 64bit machine (qemu-system-ppc64).<br>
<br>
But to be able to run AIX, there are some improvements to add:<br>
- to OpenBIOS: at least RTAS is missing.<br>
- to qemu: emulate hardware supported by AIX (disk controller, network interface, graphic card, ...)<br>
<br>
As said before: patches are welcome...<br>
<br>
Regards,<br>
Laurent<br>
<font color="#888888">--<br>
</font><div><div></div><div class="h5">--------------------- <a href="mailto:Laurent@vivier.eu">Laurent@vivier.eu</a>  ---------------------<br>
&quot;Tout ce qui est impossible reste à accomplir&quot;    Jules Verne<br>
&quot;Things are only impossible until they&#39;re not&quot; Jean-Luc Picard<br>
<br>
--<br>
OpenBIOS                 <a href="http://openbios.org/" target="_blank">http://openbios.org/</a><br>
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Free your System - May the Forth be with you</div></div></blockquote></div><br><br clear="all"><br>-- <br>Cordiali Saluti/Best Regards<br><br>Massimo Montecchi<br>Modena - Italy<br>
</div>