user.dbk

Bochs这个虚拟机的源代码。学习虚拟机的编写和操作系统的编写有帮助。

      His latest sources are at <ulink url="http://www.os2world.com/emulator/computer.html">http://www.os2world.com/emulator/computer.html</ulink>.
      If you want to bring the OS/2 port up to date, contact the &devlist;.
      </entry>
   </row>

   </tbody>
   </tgroup>

</table>
</section>  <!-- End Platforms section -->

<!-- *************************************************************** -->
<section id="faq"><title>FAQ</title>
<qandaset>
  <qandaentry>
     <question>
       <para>Is Bochs Open Source?</para>
     </question>
     <answer>
       <para>
       Yes! Bochs is released under the <ulink url="http://www.gnu.org/copyleft/lesser.html">GNU LGPL</ulink>,
       much thanks to <ulink url="http://www.linux-mandrake.com">MandrakeSoft</ulink>, makers
       of the Linux-Mandrake distribution.
       </para>
     </answer>
  </qandaentry>

  <qandaentry>
     <question>
       <para>How do you pronounce "bochs"?</para>
     </question>
     <answer>
       <para>
       Phonetically the same as the English word "box". It's just a play on the word "box", since techies like to call their machines a "Linux box", "Windows box", ... Bochs emulates a box inside a box. 
       </para>
     </answer>
  </qandaentry>

  <qandaentry>
     <question>
       <para>Who is the author of bochs?</para>
     </question>
     <answer>
       <para>
       Kevin Lawton is the primary author of bochs. There have been bug fixes,
       enhancements, and code contributions from some few hundred people, so
       it is not possible to list them all.  Recently, Kevin has been working
       on a PC virtualization project called <ulink
       url="http://savannah.nongnu.org/projects/plex86">plex86</ulink>. In Fall 2002, he
       made contributed some major CPU speedups and helped with integration
       and debugging of the x86-64 emulation code.
       </para>
     </answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     Who maintains bochs now?
     </para></question>
     <answer><para>
      With Kevin's help, in April 2001, the members of the bochs-developers
      mailing list set up a new official bochs site hosted by <ulink
      url="http://sourcefourge.net">Source Forge</ulink>. The admins on this
      project are Greg Alexander, Don Becker, Christophe Bothamy, and Bryce
      Denney.
     </para></answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     Tell me about performance when running bochs.
     </para></question>
     <answer><para>
     Because Bochs emulates every x86 instruction and all the devices in a PC
     system, it does not reach high emulation speeds. Kevin reported
     approximately 1.5MIPS using bochs on a 400Mhz PII Linux machine. Users
     who have an x86 processor and want the highest emulation speeds may want
     to consider PC virtualization software such as plex86 (free) or VMware
     (commercial). 
     </para></answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     Does bochs use a disk partition to install the OS? 
     </para></question>
     <answer><para>
     No. You use a disk image file, which is simply a large file, like any other file, on your platform's disk. 
     </para></answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     Why can't I use Bochs with my current Win95 installation? 
     </para></question>
     <answer><para>
     Think about this. If you had two different PC's, they would require different hardware drivers. So you may not be able to safely move a disk drive with Win95 on it, from one to the other. Bochs is no different. It emulates a certain set of hardware devices, and requires each OS be configured for those devices. 
     </para></answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     Is there a developer's email list for bochs?
     </para></question>
     <answer><para>
     Yes.  For instructions on joining, refer to 
     <xref linkend="mailinglist">
     </para></answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     Is there an irc channel for bochs?
     </para></question>
     <answer><para>
     Yes. You will usually find Bochs developers and users on irc at irc.freenode.net:6667, channel #bochs
     </para></answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     Do you know of any snapshots of Bochs running Win95?
     </para></question>
     <answer><para>
     Yes!  Look for "screen shots" on the <ulink url="http://bochs.sourceforge.net">Bochs home page</ulink> or on other Bochs sites.
     </para></answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     Does bochs support a CDROM?
     </para></question>
     <answer><para>
     Yes, a CDROM is supported in Linux, Windows, BeOS, and OpenBSD.  The
CDROM drivers for bochs allow the guest operating system to access the
host operating system's CDROM data directly.
     </para></answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     Does bochs support a sound device?
     </para></question>
     <answer><para>
     Yes, there is Sound Blaster emulation support for Windows, Linux and FreeBSD.
     </para></answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     Does bochs support a network card?
     </para></question>
     <answer><para>
     Yes.  Bochs contains a model of an NE2000 compatible network card.
     Networking is not supported on all platforms.  See 
     <xref linkend="features"> for details.
     </para></answer>
  </qandaentry>

  <qandaentry>
     <question><para>
     What applications are known to run inside of bochs?
     </para></question>
     <answer><para>
     Well, lot's of different OS's run inside of bochs, so
   thousands.  I'm assuming your asking about Windows programs.
   To give you a few, the following ones from the Winstone'98 tests
   worked: Access 97, CorelDRAW! 7, Excel 97, Lotus 1-2-3 97, Word 97,
   PowerPoint 97, Quattro Pro 7, WordPerfect 7.
</para>

     <para>Also, I've compiled an entire OS kernel inside bochs before.  Not
to mention, running DOOM, though at then-pathetic speeds.
     </para></answer>
  </qandaentry>

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     ......................................................
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     <question><para>
     Question is put here
     </para></question>
     <answer><para>
       Answer is put here. 
     </para></answer>
  </qandaentry>
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</qandaset>
</section>

</chapter>  <!-- End of Introduction to Bochs -->

<!-- *************************************************************** -->
<chapter id="release-notes"><title>Release Notes</title>

<para>
The change log is stored in the Bochs source code in a file called
CHANGES.  Click <ulink url="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/bochs/bochs/CHANGES?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup">here</ulink> to see the latest version of the CHANGES file.
</para>
<para>
The link above is provided by Source Forge and might change one day.  If it
stops working, you can download the current source code with CVS and read
the CHANGES file there.
</para>

</chapter>




<!-- *************************************************************** -->
<chapter id="installation"><title>Installation</title>

<section id="downloading"><title>Downloading Bochs</title>

<para>
You can download Bochs from our web site at &bochs-sf-net;.  First, you
need to choose what version to get: a recent release or a development
version.  If you trying to get things working for the first time, a release
version is recommended since it has been tested the most.  The development
versions (sometimes called snapshots) may have some newer bug fixes and new
features, but have not been tested as much as the releases.
</para>

<para>
Second, you can choose to compile Bochs from source code or install a binary
(if one is available for your platform).  Binary packages will be quicker to
install, and most include a small demo of a guest operating system called DLX
Linux to get you started.  However, some features can only be enabled if you
compile Bochs yourself, for example the Bochs debugger.  For multiuser systems,
you will probably need system administrator privileges (root) to install a
binary package.  If you decide to get a binary, download it to your hard disk,
uncompress it, then go to the section called <link
linkend="install-binary">Installing a Binary</link> for more information.
</para>

<para>
If you are going to compile Bochs yourself, you need the gzipped tarball
containing the source code, called
<filename>bochs-<replaceable>version</replaceable>.tar.gz</filename>.  For
Windows and Mac, the prebuilt Makefiles are separate, so also get
the Makefiles for your platform.  To unpack a compressed TAR file<footnote>
<para>
A TAR file is a single file that contains many files packed inside.  Bochs
TAR files are compressed with a program called gzip, and another program
called gunzip is used to uncompress them.
</para>
</footnote> on a Unix machine<footnote>
<para>
On Windows, look for software called WinZip to unpack the TAR.
</para>
</footnote>
, type
<screen>
  gunzip -c bochs-<replaceable>version</replaceable>.tar.gz | tar -xvf -
</screen>
This creates a directory called
<filename>bochs-<replaceable>version</replaceable></filename> full of
files.  This directory will be referred to as &bochsdir;.  Go into
&bochsdir; and you are ready to compile.  Instructions for compiling 
Bochs are in the section, <link linkend="compiling">Compiling Bochs</link>.
</para>

<para>
Alternatively, you can also obtain the sources for any Bochs version using CVS.
See the <link linkend="get-src-cvs">CVS instructions</link> for details.
</para>
</section>  <!-- End of Installation:Downloading Bochs section -->

<section id="get-src-cvs"><title>Tracking the source code with CVS</title>
<para>
CVS, or Concurrent Version System, is a software development tool that helps
to keep track of the different revisions of each file.  It is used by many
open source (and commercial) projects to allow multiple developers to share
their changes to the source code.  The Bochs source code and documentation 
are available using CVS<footnote>
<para>
You can download CVS software and documentation from 
<ulink url="http://www.cvshome.org">www.cvshome.org</ulink>.
</para>
</footnote>.
</para>

<section><title>Checking out Bochs</title>
<para>
When you have CVS installed, the first step is to do a login and checkout.  The
initial checkout command is long and ugly, but usually you only have to do it
once.  The example below shows the CVS checkout process in UNIX.  On the
Windows platform, you can download a CVS client from cvshome.com, or
use CVS within Cygwin<footnote>
<para>
Cygwin is an open source UNIX-like environment for Windows platforms,
available at <ulink url="http://www.cygwin.com">www.cygwin.com</ulink>.
</para>
</footnote>.

<figure><title>Checking out Bochs in CVS</title>
<screen>
  user$ <command>cvs -d:pserver:[e-mail]:/cvsroot/bochs login</command>
  (Logging in to [e-mail])
  CVS password:    <replaceable>(there is no password, just press Enter)</replaceable>
  user$ <command>cvs -z3 -d:pserver:[e-mail]:/cvsroot/bochs checkout bochs</command>
  cvs server: Updating bochs
  U bochs/.bochsrc
  U bochs/.conf.AIX.4.3.1
  U bochs/.conf.beos-x86-R4
  U bochs/.conf.macos
     .
     .   <lineannotation>(This might take a few minutes, depending on your network connection.)</lineannotation>
     .