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@ -876,22 +876,55 @@ To have access to SVGA graphic modes under X11, use the @code{vesa} or
the @code{cirrus} X11 driver. For optimal performances, use 16 bit the @code{cirrus} X11 driver. For optimal performances, use 16 bit
color depth in the guest and the host OS. color depth in the guest and the host OS.
When using a 2.6 guest Linux kernel, you should add the option
@code{clock=pit} on the kernel command line because the 2.6 Linux
kernels make very strict real time clock checks by default that QEMU
cannot simulate exactly.
@subsection Windows @subsection Windows
If you have a slow host, using Windows 95 is better as it gives the If you have a slow host, using Windows 95 is better as it gives the
best speed. Windows 2000 is also a good choice. best speed. Windows 2000 is also a good choice.
SVGA graphic modes support: QEMU emulates a Cirrus Logic GD5446 Video @subsubsection SVGA graphic modes support
QEMU emulates a Cirrus Logic GD5446 Video
card. All Windows versions starting from Windows 95 should recognize card. All Windows versions starting from Windows 95 should recognize
and use this graphic card. For optimal performances, use 16 bit color and use this graphic card. For optimal performances, use 16 bit color
depth in the guest and the host OS. depth in the guest and the host OS.
CPU usage reduction: Windows 9x does not correctly use the CPU HLT @subsubsection CPU usage reduction
Windows 9x does not correctly use the CPU HLT
instruction. The result is that it takes host CPU cycles even when instruction. The result is that it takes host CPU cycles even when
idle. You can install the utility from idle. You can install the utility from
@url{http://www.user.cityline.ru/~maxamn/amnhltm.zip} to solve this @url{http://www.user.cityline.ru/~maxamn/amnhltm.zip} to solve this
problem. Note that no such tool is needed for NT, 2000 or XP. problem. Note that no such tool is needed for NT, 2000 or XP.
@subsubsection Windows 2000 disk full problems
Currently (release 0.6.0) QEMU has a bug which gives a @code{disk
full} error during installation of some releases of Windows 2000. The
workaround is to stop QEMU as soon as you notice that your disk image
size is growing too fast (monitor it with @code{ls -ls}). Then
relaunch QEMU to continue the installation. If you still experience
the problem, relaunch QEMU again.
Future QEMU releases are likely to correct this bug.
@subsubsection Windows XP security problems
Some releases of Windows XP install correctly but give a security
error when booting:
@example
A problem is preventing Windows from accurately checking the
license for this computer. Error code: 0x800703e6.
@end example
The only known workaround is to boot in Safe mode
without networking support.
Future QEMU releases are likely to correct this bug.
@chapter QEMU PowerPC System emulator invocation @chapter QEMU PowerPC System emulator invocation
Use the executable @file{qemu-system-ppc} to simulate a complete PREP Use the executable @file{qemu-system-ppc} to simulate a complete PREP