@item G3 BW PowerMac (PowerPC processor)
@item Mac99 PowerMac (PowerPC processor, in progress)
@item Sun4m/Sun4c/Sun4d (32-bit Sparc processor)
-@item Sun4u (64-bit Sparc processor, in progress)
+@item Sun4u/Sun4v (64-bit Sparc processor, in progress)
@item Malta board (32-bit and 64-bit MIPS processors)
@item MIPS Magnum (64-bit MIPS processor)
@item ARM Integrator/CP (ARM)
@item snapshot=@var{snapshot}
@var{snapshot} is "on" or "off" and allows to enable snapshot for given drive (see @option{-snapshot}).
@item cache=@var{cache}
-@var{cache} is "on" or "off" and allows to disable host cache to access data.
+@var{cache} is "none", "writeback", or "writethrough" and controls how the host cache is used to access block data.
@item format=@var{format}
Specify which disk @var{format} will be used rather than detecting
the format. Can be used to specifiy format=raw to avoid interpreting
an untrusted format header.
@end table
+By default, writethrough caching is used for all block device. This means that
+the host page cache will be used to read and write data but write notification
+will be sent to the guest only when the data has been reported as written by
+the storage subsystem.
+
+Writeback caching will report data writes as completed as soon as the data is
+present in the host page cache. This is safe as long as you trust your host.
+If your host crashes or loses power, then the guest may experience data
+corruption. When using the @option{-snapshot} option, writeback caching is
+used by default.
+
+The host page can be avoided entirely with @option{cache=none}. This will
+attempt to do disk IO directly to the guests memory. QEMU may still perform
+an internal copy of the data.
+
Instead of @option{-cdrom} you can use:
@example
qemu -drive file=file,index=2,media=cdrom
a suffix of ``M'' or ``G'' can be used to signify a value in megabytes or
gigabytes respectively.
+@item -cpu @var{model}
+Select CPU model (-cpu ? for list and additional feature selection)
+
@item -smp @var{n}
Simulate an SMP system with @var{n} CPUs. On the PC target, up to 255
CPUs are supported. On Sparc32 target, Linux limits the number of usable CPUs
means qemu is able to report the mouse position without having to grab the
mouse. Also overrides the PS/2 mouse emulation when activated.
-@item disk:file
-Mass storage device based on file
+@item disk:[format=@var{format}]:file
+Mass storage device based on file. The optional @var{format} argument
+will be used rather than detecting the format. Can be used to specifiy
+format=raw to avoid interpreting an untrusted format header.
@item host:bus.addr
Pass through the host device identified by bus.addr (Linux only).
Braille device. This will use BrlAPI to display the braille output on a real
or fake device.
-@item net:nic_num
+@item net:options
Network adapter that supports CDC ethernet and RNDIS protocols.
@end table
Valid values for @var{type} are
@code{i82551}, @code{i82557b}, @code{i82559er},
@code{ne2k_pci}, @code{ne2k_isa}, @code{pcnet}, @code{rtl8139},
-@code{e1000}, @code{smc91c111}, @code{lance}, @code{mcf_fec} and @code{usb}.
+@code{e1000}, @code{smc91c111}, @code{lance} and @code{mcf_fec}.
Not all devices are supported on all targets. Use -net nic,model=?
for a list of available devices for your target.
/path/to/linux ubd0=/path/to/root_fs eth0=mcast
@end example
+@item -net vde[,vlan=@var{n}][,sock=@var{socketpath}][,port=@var{n}][,group=@var{groupname}][,mode=@var{octalmode}]
+Connect VLAN @var{n} to PORT @var{n} of a vde switch running on host and
+listening for incoming connections on @var{socketpath}. Use GROUP @var{groupname}
+and MODE @var{octalmode} to change default ownership and permissions for
+communication port. This option is available only if QEMU has been compiled
+with vde support enabled.
+
+Example:
+@example
+# launch vde switch
+vde_switch -F -sock /tmp/myswitch
+# launch QEMU instance
+qemu linux.img -net nic -net vde,sock=/tmp/myswitch
+@end example
+
@item -net none
Indicate that no network devices should be configured. It is used to
override the default configuration (@option{-net nic -net user}) which
@item -L path
Set the directory for the BIOS, VGA BIOS and keymaps.
-@item -std-vga
-Simulate a standard VGA card with Bochs VBE extensions (default is
-Cirrus Logic GD5446 PCI VGA). If your guest OS supports the VESA 2.0
-VBE extensions (e.g. Windows XP) and if you want to use high
-resolution modes (>= 1280x1024x16) then you should use this option.
+@item -vga @var{type}
+Select type of VGA card to emulate. Valid values for @var{type} are
+@table @code
+@item cirrus
+Cirrus Logic GD5446 Video card. All Windows versions starting from
+Windows 95 should recognize and use this graphic card. For optimal
+performances, use 16 bit color depth in the guest and the host OS.
+(This one is the default)
+@item std
+Standard VGA card with Bochs VBE extensions. If your guest OS
+supports the VESA 2.0 VBE extensions (e.g. Windows XP) and if you want
+to use high resolution modes (>= 1280x1024x16) then you should use
+this option.
+@item vmware
+VMWare SVGA-II compatible adapter. Use it if you have sufficiently
+recent XFree86/XOrg server or Windows guest with a driver for this
+card.
+@end table
@item -no-acpi
Disable ACPI (Advanced Configuration and Power Interface) support. Use
@item sendkey @var{keys}
-Send @var{keys} to the emulator. Use @code{-} to press several keys
-simultaneously. Example:
+Send @var{keys} to the emulator. @var{keys} could be the name of the
+key or @code{#} followed by the raw value in either decimal or hexadecimal
+format. Use @code{-} to press several keys simultaneously. Example:
@example
sendkey ctrl-alt-f1
@end example
@item braille
Braille device. This will use BrlAPI to display the braille output on a real
or fake device.
-@item net:@var{nic_num}
-Network adapter that supports CDC ethernet and RNDIS protocols. This must be
-used together with the @code{-net nic,model=usb,...} option (see description),
-where @var{nic_num} specifies the index of the @code{-net nic,...} option
-describing the interface (zero-based).
-For instance, user-mode networking can be used by specifying
+@item net:@var{options}
+Network adapter that supports CDC ethernet and RNDIS protocols. @var{options}
+specifies NIC options as with @code{-net nic,}@var{options} (see description).
+For instance, user-mode networking can be used with
@example
-qemu -net user,vlan=1 -net nic,model=usb,vlan=1 -usbdevice net:0 [...OPTIONS...]
+qemu [...OPTIONS...] -net user,vlan=0 -usbdevice net:vlan=0
@end example
Currently this cannot be used in machines that support PCI NICs.
@end table
to provide high security. The password can be fairly easily brute-forced by
a client making repeat connections. For this reason, a VNC server using password
authentication should be restricted to only listen on the loopback interface
-or UNIX domain sockets. Password ayuthentication is requested with the @code{password}
+or UNIX domain sockets. Password authentication is requested with the @code{password}
option, and then once QEMU is running the password is set with the monitor. Until
the monitor is used to set the password all clients will be rejected.
@node Sparc32 System emulator
@section Sparc32 System emulator
-Use the executable @file{qemu-system-sparc} to simulate a SPARCstation
-5, SPARCstation 10, SPARCstation 20, SPARCserver 600MP (sun4m
-architecture), SPARCstation 2 (sun4c architecture), SPARCserver 1000,
-or SPARCcenter 2000 (sun4d architecture). The emulation is somewhat
-complete. SMP up to 16 CPUs is supported, but Linux limits the number
-of usable CPUs to 4.
+Use the executable @file{qemu-system-sparc} to simulate the following
+Sun4m architecture machines:
+@itemize @minus
+@item
+SPARCstation 4
+@item
+SPARCstation 5
+@item
+SPARCstation 10
+@item
+SPARCstation 20
+@item
+SPARCserver 600MP
+@item
+SPARCstation LX
+@item
+SPARCstation Voyager
+@item
+SPARCclassic
+@item
+SPARCbook
+@end itemize
-QEMU emulates the following sun4m/sun4d peripherals:
+The emulation is somewhat complete. SMP up to 16 CPUs is supported,
+but Linux limits the number of usable CPUs to 4.
+
+It's also possible to simulate a SPARCstation 2 (sun4c architecture),
+SPARCserver 1000, or SPARCcenter 2000 (sun4d architecture), but these
+emulators are not usable yet.
+
+QEMU emulates the following sun4m/sun4c/sun4d peripherals:
@itemize @minus
@item
@item
Lance (Am7990) Ethernet
@item
-Non Volatile RAM M48T08
+Non Volatile RAM M48T02/M48T08
@item
Slave I/O: timers, interrupt controllers, Zilog serial ports, keyboard
and power/reset logic
1275-1994 (referred to as Open Firmware) compliant firmware.
A sample Linux 2.6 series kernel and ram disk image are available on
-the QEMU web site. Please note that currently NetBSD, OpenBSD or
-Solaris kernels don't work.
+the QEMU web site. There are still issues with NetBSD and OpenBSD, but
+some kernel versions work. Please note that currently Solaris kernels
+don't work probably due to interface issues between OpenBIOS and
+Solaris.
@c man begin OPTIONS
-prom-env 'boot-device=sd(0,2,0):d' -prom-env 'boot-args=linux single'
@end example
-@item -M [SS-5|SS-10|SS-20|SS-600MP|SS-2|SS-1000|SS-2000]
+@item -M [SS-4|SS-5|SS-10|SS-20|SS-600MP|LX|Voyager|SPARCClassic|SPARCbook|SS-2|SS-1000|SS-2000]
Set the emulated machine type. Default is SS-5.
@node Sparc64 System emulator
@section Sparc64 System emulator
-Use the executable @file{qemu-system-sparc64} to simulate a Sun4u machine.
-The emulator is not usable for anything yet.
+Use the executable @file{qemu-system-sparc64} to simulate a Sun4u
+(UltraSPARC PC-like machine), Sun4v (T1 PC-like machine), or generic
+Niagara (T1) machine. The emulator is not usable for anything yet, but
+it can launch some kernels.
-QEMU emulates the following sun4u peripherals:
+QEMU emulates the following peripherals:
@itemize @minus
@item
@item
PCI VGA compatible card with VESA Bochs Extensions
@item
+PS/2 mouse and keyboard
+@item
Non Volatile RAM M48T59
@item
PC-compatible serial ports
+@item
+2 PCI IDE interfaces with hard disk and CD-ROM support
+@item
+Floppy disk
@end itemize
+@c man begin OPTIONS
+
+The following options are specific to the Sparc64 emulation:
+
+@table @option
+
+@item -prom-env string
+
+Set OpenBIOS variables in NVRAM, for example:
+
+@example
+qemu-system-sparc64 -prom-env 'auto-boot?=false'
+@end example
+
+@item -M [sun4u|sun4v|Niagara]
+
+Set the emulated machine type. The default is sun4u.
+
+@end table
+
+@c man end
+
@node MIPS System emulator
@section MIPS System emulator
@subsection Command line options
@example
-usage: qemu-i386 [-h] [-d] [-L path] [-s size] program [arguments...]
+usage: qemu-i386 [-h] [-d] [-L path] [-s size] [-cpu model] [-g port] program [arguments...]
@end example
@table @option
Set the x86 elf interpreter prefix (default=/usr/local/qemu-i386)
@item -s size
Set the x86 stack size in bytes (default=524288)
+@item -cpu model
+Select CPU model (-cpu ? for list and additional feature selection)
@end table
Debug options:
Activate log (logfile=/tmp/qemu.log)
@item -p pagesize
Act as if the host page size was 'pagesize' bytes
+@item -g port
+Wait gdb connection to port
@end table
Environment variables:
The binary format is detected automatically.
+@command{qemu-sparc} can execute Sparc32 binaries (Sparc32 CPU, 32 bit ABI).
+
@command{qemu-sparc32plus} can execute Sparc32 and SPARC32PLUS binaries
(Sparc64 CPU, 32 bit ABI).
projects / mirror_qemu.git / blobdiff