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doc update
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@990 c046a42c-6fe2-441c-8c8c-71466251a162
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279
qemu-doc.texi
279
qemu-doc.texi
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@ -41,18 +41,19 @@ For system emulation, the following hardware targets are supported:
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@itemize
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@item PC (x86 processor)
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@item PREP (PowerPC processor)
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@item PowerMac (PowerPC processor, in progress)
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@end itemize
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For user emulation, x86, PowerPC, ARM, and SPARC CPUs are supported.
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@chapter Installation
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If you want to compile QEMU yourself, see @ref{compilation}.
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@section Linux
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If you want to compile QEMU, please read the @file{README} which gives
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the related information. Otherwise just download the binary
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distribution (@file{qemu-XXX-i386.tar.gz}) and untar it as root in
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@file{/}:
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Download the binary distribution (@file{qemu-XXX-i386.tar.gz}) and
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untar it as root in @file{/}:
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@example
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su
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@ -62,67 +63,13 @@ tar zxvf /tmp/qemu-XXX-i386.tar.gz
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@section Windows
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@itemize
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@item Install the current versions of MSYS and MinGW from
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@url{http://www.mingw.org/}. You can find detailed installation
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instructions in the download section and the FAQ.
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@item Download
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the MinGW development library of SDL 1.2.x
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(@file{SDL-devel-1.2.x-mingw32.tar.gz}) from
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@url{http://www.libsdl.org}. Unpack it in a temporary place, and
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unpack the archive @file{i386-mingw32msvc.tar.gz} in the MinGW tool
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directory. Edit the @file{sdl-config} script so that it gives the
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correct SDL directory when invoked.
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@item Extract the current version of QEMU.
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@item Start the MSYS shell (file @file{msys.bat}).
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@item Change to the QEMU directory. Launch @file{./configure} and
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@file{make}. If you have problems using SDL, verify that
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@file{sdl-config} can be launched from the MSYS command line.
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@item You can install QEMU in @file{Program Files/Qemu} by typing
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@file{make install}. Don't forget to copy @file{SDL.dll} in
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@file{Program Files/Qemu}.
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@end itemize
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@section Cross compilation for Windows with Linux
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@itemize
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@item
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Install the MinGW cross compilation tools available at
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@url{http://www.mingw.org/}.
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@item
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Install the Win32 version of SDL (@url{http://www.libsdl.org}) by
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unpacking @file{i386-mingw32msvc.tar.gz}. Set up the PATH environment
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variable so that @file{i386-mingw32msvc-sdl-config} can be launched by
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the QEMU configuration script.
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@item
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Configure QEMU for Windows cross compilation:
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@example
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./configure --enable-mingw32
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@end example
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If necessary, you can change the cross-prefix according to the prefix
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choosen for the MinGW tools with --cross-prefix. You can also use
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--prefix to set the Win32 install path.
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@item You can install QEMU in the installation directory by typing
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@file{make install}. Don't forget to copy @file{SDL.dll} in the
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installation directory.
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@end itemize
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Note: Currently, Wine does not seem able to launch
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QEMU for Win32.
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Download the experimental binary installer at
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@url{http://www.freeoszoo.org/download.php}.
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@section Mac OS X
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Mac OS X is currently not supported.
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Download the experimental binary installer at
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@url{http://www.freeoszoo.org/download.php}.
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@chapter QEMU PC System emulator invocation
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@ -138,11 +85,11 @@ available:
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@enumerate
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@item
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@code{qemu-fast} uses the host Memory Management Unit (MMU) to simulate
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the x86 MMU. It is @emph{fast} but has limitations because the whole 4 GB
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address space cannot be used and some memory mapped peripherials
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cannot be emulated accurately yet. Therefore, a specific Linux kernel
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must be used (@xref{linux_compile}).
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@code{qemu-fast} uses the host Memory Management Unit (MMU) to
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simulate the x86 MMU. It is @emph{fast} but has limitations because
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the whole 4 GB address space cannot be used and some memory mapped
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peripherials cannot be emulated accurately yet. Therefore, a specific
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guest Linux kernel can be used (@xref{linux_compile}) as guest OS.
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@item
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@code{qemu} uses a software MMU. It is about @emph{two times
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@ -153,22 +100,28 @@ slower} but gives a more accurate emulation.
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QEMU emulates the following PC peripherials:
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@itemize @minus
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@item
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i440FX host PCI bridge and PIIX3 PCI to ISA bridge
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@item
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VGA (hardware level, including all non standard modes)
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Cirrus CLGD 5446 PCI VGA card or dummy VGA card with Bochs VESA
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extensions (hardware level, including all non standard modes).
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@item
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PS/2 mouse and keyboard
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@item
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2 IDE interfaces with hard disk and CD-ROM support
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2 PCI IDE interfaces with hard disk and CD-ROM support
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@item
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Floppy disk
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@item
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up to 6 NE2000 network adapters
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NE2000 PCI network adapters
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@item
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Serial port
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@item
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Soundblaster 16 card
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@end itemize
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QEMU uses the PC BIOS from the Bochs project and the Plex86/Bochs LGPL
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VGA BIOS.
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@c man end
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@section Quick Start
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@ -220,7 +173,7 @@ the raw disk image you use is not written back. You can however force
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the write back by pressing @key{C-a s} (@xref{disk_images}).
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@item -m megs
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Set virtual RAM size to @var{megs} megabytes.
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Set virtual RAM size to @var{megs} megabytes. Default is 128 MB.
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@item -initrd file
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Use @var{file} as initial ram disk.
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@ -238,6 +191,11 @@ with a serial console.
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The SB16 emulation is disabled by default as it may give problems with
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Windows. You can enable it manually with this option.
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@item -localtime
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Set the real time clock to local time (the default is to UTC
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time). This option is needed to have correct date in MS-DOS or
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Windows.
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@end table
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Network options:
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@ -261,11 +219,11 @@ it. Read @url{http://bellard.org/qemu/tetrinet.html} to have an
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example of its use.
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@item -user-net
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(Experimental) Use the user mode network stack. This is the default if
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no tun/tap network init script is found.
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Use the user mode network stack. This is the default if no tun/tap
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network init script is found.
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@item -dummy-net
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Use the dummy network stack: no packet will be received on the network
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Use the dummy network stack: no packet will be received by the network
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cards.
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@end table
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@ -287,7 +245,7 @@ Use @var{file} as initial ram disk.
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@end table
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Debug options:
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Debug/Expert options:
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@table @option
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@item -s
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Wait gdb connection to port 1234 (@xref{gdb_usage}).
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@ -297,6 +255,12 @@ Change gdb connection port.
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Do not start CPU at startup (you must type 'c' in the monitor).
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@item -d
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Output log in /tmp/qemu.log
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@item -isa
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Simulate an ISA-only system (default is PCI system).
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@item -std-vga
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Simulate a standard VGA card with Bochs VBE extensions (default is
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Cirrus Logic GD5446 PCI VGA)
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@end table
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During the graphical emulation, you can use the following keys:
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@ -495,6 +459,10 @@ sendkey ctrl-alt-f1
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This command is useful to send keys that your graphical user interface
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intercepts at low level, such as @code{ctrl-alt-f1} in X Window.
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@item system_reset
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Reset the system.
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@end table
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@subsection Integer expressions
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@ -904,63 +872,93 @@ Use @code{set architecture i8086} to dump 16 bit code. Then use
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@subsection Linux
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To have access to SVGA graphic modes under X11, use the @code{vesa}
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X11 driver. For optimal performances, use the same depth as your
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native display.
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To have access to SVGA graphic modes under X11, use the @code{vesa} or
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the @code{cirrus} X11 driver. For optimal performances, use 16 bit
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color depth in the guest and the host OS.
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@subsection Windows
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If you have a slow host, using Windows 95 is better as it gives the
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best speed. Windows 2000 is also a good choice.
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SVGA graphic modes support: QEMU currently supports the Bochs VESA VBE
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extensions. It supports color depths of 8, 15, 16 and 32 bits per
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pixel in 640x480, 800x600 and 1024x768. For optimal performances, use
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the same depth as your native display.
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SVGA graphic modes support: QEMU emulates a Cirrus Logic GD5446 Video
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card. All Windows versions starting from Windows 95 should recognize
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and use this graphic card. For optimal performances, use 16 bit color
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depth in the guest and the host OS.
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@itemize
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CPU usage reduction: Windows 9x does not correctly use the CPU HLT
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instruction. The result is that it takes host CPU cycles even when
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idle. You can install the utility from
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@url{http://www.user.cityline.ru/~maxamn/amnhltm.zip} to solve this
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problem. Note that no such tool is needed for NT, 2000 or XP.
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@item Windows XP: it should be automatically detected.
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@item Windows NT4 or 2000: use the driver
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@url{http://www.volny.cz/xnavara/qemuvid_bin.zip} by Filip Navara.
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@item Windows 95/98/Me: no clean solution yet (but it will change
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soon). You can however use the shareware driver from SciTech. Here are
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the steps recommended by Christophe Bothamy on the Bochs mailing list:
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@itemize
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@item install win95 with the VGA driver.
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@item download sdd 7 beta from @url{http://www.majorgeeks.com/download382.html}
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@item download pmhelp.vxd from @url{http://unununium.org/viewcvs/snap/redist/release/pmhelp.vxd}
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@item copy pmhelp.vxd to the win95 system directory
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@item install sdd7
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@end itemize
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@end itemize
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@chapter QEMU PREP PowerPC System emulator invocation
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@chapter QEMU PowerPC System emulator invocation
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Use the executable @file{qemu-system-ppc} to simulate a complete PREP
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PowerPC system.
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or PowerMac PowerPC system.
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QEMU emulates the following PowerMac peripherials:
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@itemize @minus
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@item
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UniNorth PCI Bridge
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@item
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PCI VGA compatible card with VESA Bochs Extensions
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@item
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2 PMAC IDE interfaces with hard disk and CD-ROM support
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@item
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NE2000 PCI adapters
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@item
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Non Volatile RAM
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@item
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VIA-CUDA with ADB keyboard and mouse.
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@end itemize
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QEMU emulates the following PREP peripherials:
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@itemize @minus
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@item
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PCI Bridge
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@item
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PCI VGA compatible card with VESA Bochs Extensions
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@item
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2 IDE interfaces with hard disk and CD-ROM support
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@item
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Floppy disk
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@item
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up to 6 NE2000 network adapters
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NE2000 network adapters
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@item
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Serial port
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@item
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PREP Non Volatile RAM
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@item
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PC compatible keyboard and mouse.
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@end itemize
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QEMU uses the Open Hack'Ware Open Firmware Compatible BIOS available at
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@url{http://site.voila.fr/jmayer/OpenHackWare/index.htm}.
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You can read the qemu PC system emulation chapter to have more
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informations about QEMU usage.
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@c man begin OPTIONS
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The following options are specific to the PowerPC emulation:
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@table @option
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@item -prep
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Simulate a PREP system (default is PowerMAC)
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@item -g WxH[xDEPTH]
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Set the initial VGA graphic mode. The default is 800x600x15.
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@end table
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@c man end
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More information is available at
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@url{http://jocelyn.mayer.free.fr/qemu-ppc/}.
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@ -1065,3 +1063,76 @@ Activate log (logfile=/tmp/qemu.log)
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Act as if the host page size was 'pagesize' bytes
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@end table
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@node compilation
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@chapter Compilation from the sources
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@section Linux/BSD
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Read the @file{README} which gives the related information.
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@section Windows
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@itemize
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@item Install the current versions of MSYS and MinGW from
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@url{http://www.mingw.org/}. You can find detailed installation
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instructions in the download section and the FAQ.
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@item Download
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the MinGW development library of SDL 1.2.x
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(@file{SDL-devel-1.2.x-mingw32.tar.gz}) from
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@url{http://www.libsdl.org}. Unpack it in a temporary place, and
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unpack the archive @file{i386-mingw32msvc.tar.gz} in the MinGW tool
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directory. Edit the @file{sdl-config} script so that it gives the
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correct SDL directory when invoked.
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@item Extract the current version of QEMU.
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@item Start the MSYS shell (file @file{msys.bat}).
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@item Change to the QEMU directory. Launch @file{./configure} and
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@file{make}. If you have problems using SDL, verify that
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@file{sdl-config} can be launched from the MSYS command line.
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@item You can install QEMU in @file{Program Files/Qemu} by typing
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@file{make install}. Don't forget to copy @file{SDL.dll} in
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@file{Program Files/Qemu}.
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@end itemize
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@section Cross compilation for Windows with Linux
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@itemize
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@item
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Install the MinGW cross compilation tools available at
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@url{http://www.mingw.org/}.
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@item
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Install the Win32 version of SDL (@url{http://www.libsdl.org}) by
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unpacking @file{i386-mingw32msvc.tar.gz}. Set up the PATH environment
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variable so that @file{i386-mingw32msvc-sdl-config} can be launched by
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the QEMU configuration script.
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@item
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Configure QEMU for Windows cross compilation:
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@example
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./configure --enable-mingw32
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@end example
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If necessary, you can change the cross-prefix according to the prefix
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choosen for the MinGW tools with --cross-prefix. You can also use
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--prefix to set the Win32 install path.
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@item You can install QEMU in the installation directory by typing
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@file{make install}. Don't forget to copy @file{SDL.dll} in the
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installation directory.
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@end itemize
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Note: Currently, Wine does not seem able to launch
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QEMU for Win32.
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@section Mac OS X
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The Mac OS X patches are not fully merged in QEMU, so you should look
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at the QEMU mailing list archive to have all the necessary
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information.
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@ -258,7 +258,7 @@ segment base.
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@section Translation cache
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A 2MByte cache holds the most recently used translations. For
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A 16 MByte cache holds the most recently used translations. For
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simplicity, it is completely flushed when it is full. A translation unit
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contains just a single basic block (a block of x86 instructions
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terminated by a jump or by a virtual CPU state change which the
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@ -489,19 +489,6 @@ This program tests various Linux system calls. It is used to verify
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that the system call parameters are correctly converted between target
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and host CPUs.
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@section @file{hello-i386}
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Very simple statically linked x86 program, just to test QEMU during a
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port to a new host CPU.
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@section @file{hello-arm}
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Very simple statically linked ARM program, just to test QEMU during a
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port to a new host CPU.
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@section @file{sha1}
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It is a simple benchmark. Care must be taken to interpret the results
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because it mostly tests the ability of the virtual CPU to optimize the
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@code{rol} x86 instruction and the condition code computations.
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@section @file{qruncom.c}
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Example of usage of @code{libqemu} to emulate a user mode i386 CPU.
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