@end itemize
-QEMU can run without an host kernel driver and yet gives acceptable
+QEMU can run without a host kernel driver and yet gives acceptable
performance.
For system emulation, the following hardware targets are supported:
SMP is supported with up to 255 CPUs.
-Note that adlib, gus and cs4231a are only available when QEMU was
-configured with --audio-card-list option containing the name(s) of
-required card(s).
-
-QEMU uses the PC BIOS from the Bochs project and the Plex86/Bochs LGPL
+QEMU uses the PC BIOS from the Seabios project and the Plex86/Bochs LGPL
VGA BIOS.
QEMU uses YM3812 emulation by Tatsuyuki Satoh.
by Tibor "TS" Schütz.
Note that, by default, GUS shares IRQ(7) with parallel ports and so
-qemu must be told to not have parallel ports to have working GUS
+QEMU must be told to not have parallel ports to have working GUS.
@example
-qemu dos.img -soundhw gus -parallel none
+qemu-system-i386 dos.img -soundhw gus -parallel none
@end example
Alternatively:
@example
-qemu dos.img -device gus,irq=5
+qemu-system-i386 dos.img -device gus,irq=5
@end example
Or some other unclaimed IRQ.
Download and uncompress the linux image (@file{linux.img}) and type:
@example
-qemu linux.img
+qemu-system-i386 linux.img
@end example
Linux should boot and give you a prompt.
@example
@c man begin SYNOPSIS
-usage: qemu [options] [@var{disk_image}]
+usage: qemu-system-i386 [options] [@var{disk_image}]
@c man end
@end example
* vm_snapshots:: VM snapshots
* qemu_img_invocation:: qemu-img Invocation
* qemu_nbd_invocation:: qemu-nbd Invocation
+* disk_images_formats:: Disk image file formats
* host_drives:: Using host drives
* disk_images_fat_images:: Virtual FAT disk images
* disk_images_nbd:: NBD access
* disk_images_sheepdog:: Sheepdog disk images
* disk_images_iscsi:: iSCSI LUNs
+* disk_images_gluster:: GlusterFS disk images
+* disk_images_ssh:: Secure Shell (ssh) disk images
@end menu
@node disk_images_quickstart
@include qemu-nbd.texi
+@node disk_images_formats
+@subsection Disk image file formats
+
+QEMU supports many image file formats that can be used with VMs as well as with
+any of the tools (like @code{qemu-img}). This includes the preferred formats
+raw and qcow2 as well as formats that are supported for compatibility with
+older QEMU versions or other hypervisors.
+
+Depending on the image format, different options can be passed to
+@code{qemu-img create} and @code{qemu-img convert} using the @code{-o} option.
+This section describes each format and the options that are supported for it.
+
+@table @option
+@item raw
+
+Raw disk image format. This format has the advantage of
+being simple and easily exportable to all other emulators. If your
+file system supports @emph{holes} (for example in ext2 or ext3 on
+Linux or NTFS on Windows), then only the written sectors will reserve
+space. Use @code{qemu-img info} to know the real size used by the
+image or @code{ls -ls} on Unix/Linux.
+
+@item qcow2
+QEMU image format, the most versatile format. Use it to have smaller
+images (useful if your filesystem does not supports holes, for example
+on Windows), optional AES encryption, zlib based compression and
+support of multiple VM snapshots.
+
+Supported options:
+@table @code
+@item compat
+Determines the qcow2 version to use. @code{compat=0.10} uses the traditional
+image format that can be read by any QEMU since 0.10 (this is the default).
+@code{compat=1.1} enables image format extensions that only QEMU 1.1 and
+newer understand. Amongst others, this includes zero clusters, which allow
+efficient copy-on-read for sparse images.
+
+@item backing_file
+File name of a base image (see @option{create} subcommand)
+@item backing_fmt
+Image format of the base image
+@item encryption
+If this option is set to @code{on}, the image is encrypted.
+
+Encryption uses the AES format which is very secure (128 bit keys). Use
+a long password (16 characters) to get maximum protection.
+
+@item cluster_size
+Changes the qcow2 cluster size (must be between 512 and 2M). Smaller cluster
+sizes can improve the image file size whereas larger cluster sizes generally
+provide better performance.
+
+@item preallocation
+Preallocation mode (allowed values: off, metadata). An image with preallocated
+metadata is initially larger but can improve performance when the image needs
+to grow.
+
+@item lazy_refcounts
+If this option is set to @code{on}, reference count updates are postponed with
+the goal of avoiding metadata I/O and improving performance. This is
+particularly interesting with @option{cache=writethrough} which doesn't batch
+metadata updates. The tradeoff is that after a host crash, the reference count
+tables must be rebuilt, i.e. on the next open an (automatic) @code{qemu-img
+check -r all} is required, which may take some time.
+
+This option can only be enabled if @code{compat=1.1} is specified.
+
+@end table
+
+@item qed
+Old QEMU image format with support for backing files and compact image files
+(when your filesystem or transport medium does not support holes).
+
+When converting QED images to qcow2, you might want to consider using the
+@code{lazy_refcounts=on} option to get a more QED-like behaviour.
+
+Supported options:
+@table @code
+@item backing_file
+File name of a base image (see @option{create} subcommand).
+@item backing_fmt
+Image file format of backing file (optional). Useful if the format cannot be
+autodetected because it has no header, like some vhd/vpc files.
+@item cluster_size
+Changes the cluster size (must be power-of-2 between 4K and 64K). Smaller
+cluster sizes can improve the image file size whereas larger cluster sizes
+generally provide better performance.
+@item table_size
+Changes the number of clusters per L1/L2 table (must be power-of-2 between 1
+and 16). There is normally no need to change this value but this option can be
+used for performance benchmarking.
+@end table
+
+@item qcow
+Old QEMU image format with support for backing files, compact image files,
+encryption and compression.
+
+Supported options:
+@table @code
+@item backing_file
+File name of a base image (see @option{create} subcommand)
+@item encryption
+If this option is set to @code{on}, the image is encrypted.
+@end table
+
+@item cow
+User Mode Linux Copy On Write image format. It is supported only for
+compatibility with previous versions.
+Supported options:
+@table @code
+@item backing_file
+File name of a base image (see @option{create} subcommand)
+@end table
+
+@item vdi
+VirtualBox 1.1 compatible image format.
+Supported options:
+@table @code
+@item static
+If this option is set to @code{on}, the image is created with metadata
+preallocation.
+@end table
+
+@item vmdk
+VMware 3 and 4 compatible image format.
+
+Supported options:
+@table @code
+@item backing_file
+File name of a base image (see @option{create} subcommand).
+@item compat6
+Create a VMDK version 6 image (instead of version 4)
+@item subformat
+Specifies which VMDK subformat to use. Valid options are
+@code{monolithicSparse} (default),
+@code{monolithicFlat},
+@code{twoGbMaxExtentSparse},
+@code{twoGbMaxExtentFlat} and
+@code{streamOptimized}.
+@end table
+
+@item vpc
+VirtualPC compatible image format (VHD).
+Supported options:
+@table @code
+@item subformat
+Specifies which VHD subformat to use. Valid options are
+@code{dynamic} (default) and @code{fixed}.
+@end table
+@end table
+
+@subsubsection Read-only formats
+More disk image file formats are supported in a read-only mode.
+@table @option
+@item bochs
+Bochs images of @code{growing} type.
+@item cloop
+Linux Compressed Loop image, useful only to reuse directly compressed
+CD-ROM images present for example in the Knoppix CD-ROMs.
+@item dmg
+Apple disk image.
+@item parallels
+Parallels disk image format.
+@end table
+
+
@node host_drives
@subsection Using host drives
directory tree. In order to use it, just type:
@example
-qemu linux.img -hdb fat:/my_directory
+qemu-system-i386 linux.img -hdb fat:/my_directory
@end example
Then you access access to all the files in the @file{/my_directory}
Floppies can be emulated with the @code{:floppy:} option:
@example
-qemu linux.img -fda fat:floppy:/my_directory
+qemu-system-i386 linux.img -fda fat:floppy:/my_directory
@end example
A read/write support is available for testing (beta stage) with the
@code{:rw:} option:
@example
-qemu linux.img -fda fat:floppy:rw:/my_directory
+qemu-system-i386 linux.img -fda fat:floppy:rw:/my_directory
@end example
What you should @emph{never} do:
protocol.
@example
-qemu linux.img -hdb nbd:my_nbd_server.mydomain.org:1024
+qemu-system-i386 linux.img -hdb nbd://my_nbd_server.mydomain.org:1024/
@end example
If the NBD server is located on the same host, you can use an unix socket instead
of an inet socket:
@example
-qemu linux.img -hdb nbd:unix:/tmp/my_socket
+qemu-system-i386 linux.img -hdb nbd+unix://?socket=/tmp/my_socket
@end example
In this case, the block device must be exported using qemu-nbd:
qemu-nbd --socket=/tmp/my_socket --share=2 my_disk.qcow2
@end example
+@noindent
and then you can use it with two guests:
@example
-qemu linux1.img -hdb nbd:unix:/tmp/my_socket
-qemu linux2.img -hdb nbd:unix:/tmp/my_socket
+qemu-system-i386 linux1.img -hdb nbd+unix://?socket=/tmp/my_socket
+qemu-system-i386 linux2.img -hdb nbd+unix://?socket=/tmp/my_socket
@end example
-If the nbd-server uses named exports (since NBD 2.9.18), you must use the
-"exportname" option:
+If the nbd-server uses named exports (supported since NBD 2.9.18, or with QEMU's
+own embedded NBD server), you must specify an export name in the URI:
@example
-qemu -cdrom nbd:localhost:exportname=debian-500-ppc-netinst
-qemu -cdrom nbd:localhost:exportname=openSUSE-11.1-ppc-netinst
+qemu-system-i386 -cdrom nbd://localhost/debian-500-ppc-netinst
+qemu-system-i386 -cdrom nbd://localhost/openSUSE-11.1-ppc-netinst
+@end example
+
+The URI syntax for NBD is supported since QEMU 1.3. An alternative syntax is
+also available. Here are some example of the older syntax:
+@example
+qemu-system-i386 linux.img -hdb nbd:my_nbd_server.mydomain.org:1024
+qemu-system-i386 linux2.img -hdb nbd:unix:/tmp/my_socket
+qemu-system-i386 -cdrom nbd:localhost:10809:exportname=debian-500-ppc-netinst
@end example
@node disk_images_sheepdog
You can create a Sheepdog disk image with the command:
@example
-qemu-img create sheepdog:@var{image} @var{size}
+qemu-img create sheepdog:///@var{image} @var{size}
@end example
where @var{image} is the Sheepdog image name and @var{size} is its
size.
To import the existing @var{filename} to Sheepdog, you can use a
convert command.
@example
-qemu-img convert @var{filename} sheepdog:@var{image}
+qemu-img convert @var{filename} sheepdog:///@var{image}
@end example
You can boot from the Sheepdog disk image with the command:
@example
-qemu sheepdog:@var{image}
+qemu-system-i386 sheepdog:///@var{image}
@end example
You can also create a snapshot of the Sheepdog image like qcow2.
@example
-qemu-img snapshot -c @var{tag} sheepdog:@var{image}
+qemu-img snapshot -c @var{tag} sheepdog:///@var{image}
@end example
where @var{tag} is a tag name of the newly created snapshot.
To boot from the Sheepdog snapshot, specify the tag name of the
snapshot.
@example
-qemu sheepdog:@var{image}:@var{tag}
+qemu-system-i386 sheepdog:///@var{image}#@var{tag}
@end example
You can create a cloned image from the existing snapshot.
@example
-qemu-img create -b sheepdog:@var{base}:@var{tag} sheepdog:@var{image}
+qemu-img create -b sheepdog:///@var{base}#@var{tag} sheepdog:///@var{image}
@end example
where @var{base} is a image name of the source snapshot and @var{tag}
is its tag name.
+You can use an unix socket instead of an inet socket:
+
+@example
+qemu-system-i386 sheepdog+unix:///@var{image}?socket=@var{path}
+@end example
+
If the Sheepdog daemon doesn't run on the local host, you need to
specify one of the Sheepdog servers to connect to.
@example
-qemu-img create sheepdog:@var{hostname}:@var{port}:@var{image} @var{size}
-qemu sheepdog:@var{hostname}:@var{port}:@var{image}
+qemu-img create sheepdog://@var{hostname}:@var{port}/@var{image} @var{size}
+qemu-system-i386 sheepdog://@var{hostname}:@var{port}/@var{image}
@end example
@node disk_images_iscsi
in a configuration file provided via '-readconfig' or directly on the
command line.
+If the initiator-name is not specified qemu will use a default name
+of 'iqn.2008-11.org.linux-kvm[:<name>'] where <name> is the name of the
+virtual machine.
+
+
@example
Setting a specific initiator name to use when logging in to the target
-iscsi initiator-name=iqn.qemu.test:my-initiator
-cdrom iscsi://127.0.0.1/iqn.qemu.test/2
@end example
+@node disk_images_gluster
+@subsection GlusterFS disk images
+
+GlusterFS is an user space distributed file system.
+
+You can boot from the GlusterFS disk image with the command:
+@example
+qemu-system-x86_64 -drive file=gluster[+@var{transport}]://[@var{server}[:@var{port}]]/@var{volname}/@var{image}[?socket=...]
+@end example
+
+@var{gluster} is the protocol.
+
+@var{transport} specifies the transport type used to connect to gluster
+management daemon (glusterd). Valid transport types are
+tcp, unix and rdma. If a transport type isn't specified, then tcp
+type is assumed.
+
+@var{server} specifies the server where the volume file specification for
+the given volume resides. This can be either hostname, ipv4 address
+or ipv6 address. ipv6 address needs to be within square brackets [ ].
+If transport type is unix, then @var{server} field should not be specifed.
+Instead @var{socket} field needs to be populated with the path to unix domain
+socket.
+
+@var{port} is the port number on which glusterd is listening. This is optional
+and if not specified, QEMU will send 0 which will make gluster to use the
+default port. If the transport type is unix, then @var{port} should not be
+specified.
+
+@var{volname} is the name of the gluster volume which contains the disk image.
+
+@var{image} is the path to the actual disk image that resides on gluster volume.
+
+You can create a GlusterFS disk image with the command:
+@example
+qemu-img create gluster://@var{server}/@var{volname}/@var{image} @var{size}
+@end example
+
+Examples
+@example
+qemu-system-x86_64 -drive file=gluster://1.2.3.4/testvol/a.img
+qemu-system-x86_64 -drive file=gluster+tcp://1.2.3.4/testvol/a.img
+qemu-system-x86_64 -drive file=gluster+tcp://1.2.3.4:24007/testvol/dir/a.img
+qemu-system-x86_64 -drive file=gluster+tcp://[1:2:3:4:5:6:7:8]/testvol/dir/a.img
+qemu-system-x86_64 -drive file=gluster+tcp://[1:2:3:4:5:6:7:8]:24007/testvol/dir/a.img
+qemu-system-x86_64 -drive file=gluster+tcp://server.domain.com:24007/testvol/dir/a.img
+qemu-system-x86_64 -drive file=gluster+unix:///testvol/dir/a.img?socket=/tmp/glusterd.socket
+qemu-system-x86_64 -drive file=gluster+rdma://1.2.3.4:24007/testvol/a.img
+@end example
+
+@node disk_images_ssh
+@subsection Secure Shell (ssh) disk images
+
+You can access disk images located on a remote ssh server
+by using the ssh protocol:
+
+@example
+qemu-system-x86_64 -drive file=ssh://[@var{user}@@]@var{server}[:@var{port}]/@var{path}[?host_key_check=@var{host_key_check}]
+@end example
+
+Alternative syntax using properties:
+
+@example
+qemu-system-x86_64 -drive file.driver=ssh[,file.user=@var{user}],file.host=@var{server}[,file.port=@var{port}],file.path=@var{path}[,file.host_key_check=@var{host_key_check}]
+@end example
+
+@var{ssh} is the protocol.
+@var{user} is the remote user. If not specified, then the local
+username is tried.
+
+@var{server} specifies the remote ssh server. Any ssh server can be
+used, but it must implement the sftp-server protocol. Most Unix/Linux
+systems should work without requiring any extra configuration.
+
+@var{port} is the port number on which sshd is listening. By default
+the standard ssh port (22) is used.
+
+@var{path} is the path to the disk image.
+
+The optional @var{host_key_check} parameter controls how the remote
+host's key is checked. The default is @code{yes} which means to use
+the local @file{.ssh/known_hosts} file. Setting this to @code{no}
+turns off known-hosts checking. Or you can check that the host key
+matches a specific fingerprint:
+@code{host_key_check=md5:78:45:8e:14:57:4f:d5:45:83:0a:0e:f3:49:82:c9:c8}
+(@code{sha1:} can also be used as a prefix, but note that OpenSSH
+tools only use MD5 to print fingerprints).
+
+Currently authentication must be done using ssh-agent. Other
+authentication methods may be supported in future.
+
+Note: Many ssh servers do not support an @code{fsync}-style operation.
+The ssh driver cannot guarantee that disk flush requests are
+obeyed, and this causes a risk of disk corruption if the remote
+server or network goes down during writes. The driver will
+print a warning when @code{fsync} is not supported:
+
+warning: ssh server @code{ssh.example.com:22} does not support fsync
+
+With sufficiently new versions of libssh2 and OpenSSH, @code{fsync} is
+supported.
@node pcsys_network
@section Network emulation
syntax is:
@example
-qemu -device ivshmem,size=<size in format accepted by -m>[,shm=<shm name>]
+qemu-system-i386 -device ivshmem,size=<size in format accepted by -m>[,shm=<shm name>]
@end example
If desired, interrupts can be sent between guest VMs accessing the same shared
memory server is:
@example
-qemu -device ivshmem,size=<size in format accepted by -m>[,chardev=<id>]
- [,msi=on][,ioeventfd=on][,vectors=n][,role=peer|master]
-qemu -chardev socket,path=<path>,id=<id>
+qemu-system-i386 -device ivshmem,size=<size in format accepted by -m>[,chardev=<id>]
+ [,msi=on][,ioeventfd=on][,vectors=n][,role=peer|master]
+qemu
-system-i386 -chardev socket,path=<path>,id=<id>
@end example
When using the server, the guest will be assigned a VM ID (>=0) that allows guests
The syntax is:
@example
-qemu -kernel arch/i386/boot/bzImage -hda root-2.4.20.img -append "root=/dev/hda"
+qemu-system-i386 -kernel arch/i386/boot/bzImage -hda root-2.4.20.img -append "root=/dev/hda"
@end example
Use @option{-kernel} to provide the Linux kernel image and
the virtual serial port and the QEMU monitor to the console with the
@option{-nographic} option. The typical command line is:
@example
-qemu -kernel arch/i386/boot/bzImage -hda root-2.4.20.img \
- -append "root=/dev/hda console=ttyS0" -nographic
+qemu-system-i386 -kernel arch/i386/boot/bzImage -hda root-2.4.20.img \
+ -append "root=/dev/hda console=ttyS0" -nographic
@end example
Use @key{Ctrl-a c} to switch between the serial console and the
QEMU emulates a PCI UHCI USB controller. You can virtually plug
virtual USB devices or real host USB devices (experimental, works only
-on Linux hosts). Qemu will automatically create and connect virtual USB hubs
+on Linux hosts). QEMU will automatically create and connect virtual USB hubs
as necessary to connect multiple USB devices.
@menu
Virtual Mouse. This will override the PS/2 mouse emulation when activated.
@item tablet
Pointer device that uses absolute coordinates (like a touchscreen).
-This means qemu is able to report the mouse position without having
+This 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:@var{file}
Mass storage device based on @var{file} (@pxref{disk_images})
specifies NIC options as with @code{-net nic,}@var{options} (see description).
For instance, user-mode networking can be used with
@example
-qemu [...OPTIONS...] -net user,vlan=0 -usbdevice net:vlan=0
+qemu-system-i386 [...OPTIONS...] -net user,vlan=0 -usbdevice net:vlan=0
@end example
Currently this cannot be used in machines that support PCI NICs.
@item bt[:@var{hci-type}]
This USB device implements the USB Transport Layer of HCI. Example
usage:
@example
-qemu [...OPTIONS...] -usbdevice bt:hci,vlan=3 -bt device:keyboard,vlan=3
+qemu-system-i386 [...OPTIONS...] -usbdevice bt:hci,vlan=3 -bt device:keyboard,vlan=3
@end example
@end table
socket only. For example
@example
-qemu [...OPTIONS...] -vnc unix:/home/joebloggs/.qemu-myvm-vnc
+qemu-system-i386 [...OPTIONS...] -vnc unix:/home/joebloggs/.qemu-myvm-vnc
@end example
This ensures that only users on local box with read/write access to that
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 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.
+or UNIX domain sockets. Password authentication is not supported when operating
+in FIPS 140-2 compliance mode as it requires the use of the DES cipher. 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.
@example
-qemu [...OPTIONS...] -vnc :1,password -monitor stdio
+qemu-system-i386 [...OPTIONS...] -vnc :1,password -monitor stdio
(qemu) change vnc password
Password: ********
(qemu)
client to connect, and provides an encrypted session.
@example
-qemu [...OPTIONS...] -vnc :1,tls,x509=/etc/pki/qemu -monitor stdio
+qemu-system-i386 [...OPTIONS...] -vnc :1,tls,x509=/etc/pki/qemu -monitor stdio
@end example
In the above example @code{/etc/pki/qemu} should contain at least three files,
in an environment with a private internal certificate authority.
@example
-qemu [...OPTIONS...] -vnc :1,tls,x509verify=/etc/pki/qemu -monitor stdio
+qemu-system-i386 [...OPTIONS...] -vnc :1,tls,x509verify=/etc/pki/qemu -monitor stdio
@end example
to provide two layers of authentication for clients.
@example
-qemu [...OPTIONS...] -vnc :1,password,tls,x509verify=/etc/pki/qemu -monitor stdio
+qemu-system-i386 [...OPTIONS...] -vnc :1,password,tls,x509verify=/etc/pki/qemu -monitor stdio
(qemu) change vnc password
Password: ********
(qemu)
then QEMU can be launched with:
@example
-qemu [...OPTIONS...] -vnc :1,sasl -monitor stdio
+qemu-system-i386 [...OPTIONS...] -vnc :1,sasl -monitor stdio
@end example
@node vnc_sec_certificate_sasl
with the aforementioned TLS + x509 options:
@example
-qemu [...OPTIONS...] -vnc :1,tls,x509,sasl -monitor stdio
+qemu-system-i386 [...OPTIONS...] -vnc :1,tls,x509,sasl -monitor stdio
@end example
QEMU has a primitive support to work with gdb, so that you can do
'Ctrl-C' while the virtual machine is running and inspect its state.
-In order to use gdb, launch qemu with the '-s' option. It will wait for a
+In order to use gdb, launch QEMU with the '-s' option. It will wait for a
gdb connection:
@example
-> qemu -s -kernel arch/i386/boot/bzImage -hda root-2.4.20.img \
- -append "root=/dev/hda"
+qemu-system-i386 -s -kernel arch/i386/boot/bzImage -hda root-2.4.20.img \
+ -append "root=/dev/hda"
Connected to host network interface: tun0
Waiting gdb connection on port 1234
@end example
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:
+QEMU emulates the following sun4m peripherals:
@itemize @minus
@item
-IOMMU or IO-UNITs
+IOMMU
@item
TCX Frame buffer
@item
-prom-env 'boot-device=sd(0,2,0):d' -prom-env 'boot-args=linux single'
@end example
-@item -M [SS-4|SS-5|SS-10|SS-20|SS-600MP|LX|Voyager|SPARCClassic] [|SPARCbook|SS-2|SS-1000|SS-2000]
+@item -M [SS-4|SS-5|SS-10|SS-20|SS-600MP|LX|Voyager|SPARCClassic] [|SPARCbook]
Set the emulated machine type. Default is SS-5.
@menu
* Supported Operating Systems ::
* Linux User space emulator::
-* Mac OS X/Darwin User space emulator ::
* BSD User space emulator ::
@end menu
@item
Linux (referred as qemu-linux-user)
@item
-Mac OS X/Darwin (referred as qemu-darwin-user)
-@item
BSD (referred as qemu-bsd-user)
@end itemize
@code{-L /} tells that the x86 dynamic linker must be searched with a
@file{/} prefix.
-@item Since QEMU is also a linux process, you can launch qemu with
-qemu (NOTE: you can only do that if you compiled QEMU from the sources):
+@item Since QEMU is also a linux process, you can launch QEMU with
+QEMU (NOTE: you can only do that if you compiled QEMU from the sources):
@example
qemu-i386 -L / qemu-i386 -L / /bin/ls
@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)
-@item -ignore-environment
-Start with an empty environment. Without this option,
-the initial environment is a copy of the caller's environment.
+Select CPU model (-cpu help for list and additional feature selection)
@item -E @var{var}=@var{value}
Set environment @var{var} to @var{value}.
@item -U @var{var}
Debug options:
@table @option
-@item -d
-Activate log (logfile=/tmp/qemu.log)
+@item -d item1,...
+Activate logging of the specified items (use '-d help' for a list of log items)
@item -p pagesize
Act as if the host page size was 'pagesize' bytes
@item -g port
@command{qemu-sparc64} can execute some Sparc64 (Sparc64 CPU, 64 bit ABI) and
SPARC32PLUS binaries (Sparc64 CPU, 32 bit ABI).
-@node Mac OS X/Darwin User space emulator
-@section Mac OS X/Darwin User space emulator
-
-@menu
-* Mac OS X/Darwin Status::
-* Mac OS X/Darwin Quick Start::
-* Mac OS X/Darwin Command line options::
-@end menu
-
-@node Mac OS X/Darwin Status
-@subsection Mac OS X/Darwin Status
-
-@itemize @minus
-@item
-target x86 on x86: Most apps (Cocoa and Carbon too) works. [1]
-@item
-target PowerPC on x86: Not working as the ppc commpage can't be mapped (yet!)
-@item
-target PowerPC on PowerPC: Most apps (Cocoa and Carbon too) works. [1]
-@item
-target x86 on PowerPC: most utilities work. Cocoa and Carbon apps are not yet supported.
-@end itemize
-
-[1] If you're host commpage can be executed by qemu.
-
-@node Mac OS X/Darwin Quick Start
-@subsection Quick Start
-
-In order to launch a Mac OS X/Darwin process, QEMU needs the process executable
-itself and all the target dynamic libraries used by it. If you don't have the FAT
-libraries (you're running Mac OS X/ppc) you'll need to obtain it from a Mac OS X
-CD or compile them by hand.
-
-@itemize
-
-@item On x86, you can just try to launch any process by using the native
-libraries:
-
-@example
-qemu-i386 /bin/ls
-@end example
-
-or to run the ppc version of the executable:
-
-@example
-qemu-ppc /bin/ls
-@end example
-
-@item On ppc, you'll have to tell qemu where your x86 libraries (and dynamic linker)
-are installed:
-
-@example
-qemu-i386 -L /opt/x86_root/ /bin/ls
-@end example
-
-@code{-L /opt/x86_root/} tells that the dynamic linker (dyld) path is in
-@file{/opt/x86_root/usr/bin/dyld}.
-
-@end itemize
-
-@node Mac OS X/Darwin Command line options
-@subsection Command line options
-
-@example
-usage: qemu-i386 [-h] [-d] [-L path] [-s size] program [arguments...]
-@end example
-
-@table @option
-@item -h
-Print the help
-@item -L path
-Set the library root path (default=/)
-@item -s size
-Set the stack size in bytes (default=524288)
-@end table
-
-Debug options:
-
-@table @option
-@item -d
-Activate log (logfile=/tmp/qemu.log)
-@item -p pagesize
-Act as if the host page size was 'pagesize' bytes
-@item -singlestep
-Run the emulation in single step mode.
-@end table
-
@node BSD User space emulator
@section BSD User space emulator
Debug options:
@table @option
-@item -d
-Activate log (logfile=/tmp/qemu.log)
+@item -d item1,...
+Activate logging of the specified items (use '-d help' for a list of log items)
@item -p pagesize
Act as if the host page size was 'pagesize' bytes
@item -singlestep
@file{make}. If you have problems using SDL, verify that
@file{sdl-config} can be launched from the MSYS command line.
-@item You can install QEMU in @file{Program Files/Qemu} by typing
+@item You can install QEMU in @file{Program Files/QEMU} by typing
@file{make install}. Don't forget to copy @file{SDL.dll} in
-@file{Program Files/Qemu}.
+@file{Program Files/QEMU}.
@end itemize
MinGW cross compilation tools have names like @file{i686-pc-mingw32-gcc} and @file{i686-pc-mingw32-strip}.
We set the @code{PATH} environment variable to ensure the MinGW version of @file{sdl-config} is used and
use --cross-prefix to specify the name of the cross compiler.
-You can also use --prefix to set the Win32 install path which defaults to @file{c:/Program Files/Qemu}.
+You can also use --prefix to set the Win32 install path which defaults to @file{c:/Program Files/QEMU}.
Under Fedora Linux, you can run:
@example
@end itemize
-Wine can be used to launch the resulting qemu.exe compiled for Win32.
+Wine can be used to launch the resulting qemu-system-i386.exe
+and all other qemu-system-@var{target}.exe compiled for Win32.
@node Mac OS X
@section Mac OS X
projects / qemu.git / blobdiff