a69dc537cc
There is no known available OS for ppc around anymore that uses page sizes below 4k, so it does not make much sense that we keep wasting our time on building and testing the ppcemb-softmmu target. It has been deprecated since two releases, and nobody complained, so let's remove this now. Signed-off-by: Thomas Huth <thuth@redhat.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
192 lines
6.4 KiB
Plaintext
192 lines
6.4 KiB
Plaintext
@node Deprecated features
|
|
@appendix Deprecated features
|
|
|
|
In general features are intended to be supported indefinitely once
|
|
introduced into QEMU. In the event that a feature needs to be removed,
|
|
it will be listed in this appendix. The feature will remain functional
|
|
for 2 releases prior to actual removal. Deprecated features may also
|
|
generate warnings on the console when QEMU starts up, or if activated
|
|
via a monitor command, however, this is not a mandatory requirement.
|
|
|
|
Prior to the 2.10.0 release there was no official policy on how
|
|
long features would be deprecated prior to their removal, nor
|
|
any documented list of which features were deprecated. Thus
|
|
any features deprecated prior to 2.10.0 will be treated as if
|
|
they were first deprecated in the 2.10.0 release.
|
|
|
|
What follows is a list of all features currently marked as
|
|
deprecated.
|
|
|
|
@section Build options
|
|
|
|
@subsection GTK 2.x
|
|
|
|
Previously QEMU has supported building against both GTK 2.x
|
|
and 3.x series APIs. Support for the GTK 2.x builds will be
|
|
discontinued, so maintainers should switch to using GTK 3.x,
|
|
which is the default.
|
|
|
|
@subsection SDL 1.2
|
|
|
|
Previously QEMU has supported building against both SDL 1.2
|
|
and 2.0 series APIs. Support for the SDL 1.2 builds will be
|
|
discontinued, so maintainers should switch to using SDL 2.0,
|
|
which is the default.
|
|
|
|
@section System emulator command line arguments
|
|
|
|
@subsection -no-kvm (since 1.3.0)
|
|
|
|
The ``-no-kvm'' argument is now a synonym for setting
|
|
``-machine accel=tcg''.
|
|
|
|
@subsection -tftp (since 2.6.0)
|
|
|
|
The ``-tftp /some/dir'' argument is replaced by either
|
|
``-netdev user,id=x,tftp=/some/dir '' (for pluggable NICs, accompanied
|
|
with ``-device ...,netdev=x''), or ``-nic user,tftp=/some/dir''
|
|
(for embedded NICs). The new syntax allows different settings to be
|
|
provided per NIC.
|
|
|
|
@subsection -bootp (since 2.6.0)
|
|
|
|
The ``-bootp /some/file'' argument is replaced by either
|
|
``-netdev user,id=x,bootp=/some/file '' (for pluggable NICs, accompanied
|
|
with ``-device ...,netdev=x''), or ``-nic user,bootp=/some/file''
|
|
(for embedded NICs). The new syntax allows different settings to be
|
|
provided per NIC.
|
|
|
|
@subsection -redir (since 2.6.0)
|
|
|
|
The ``-redir [tcp|udp]:hostport:[guestaddr]:guestport'' argument is
|
|
replaced by either
|
|
``-netdev user,id=x,hostfwd=[tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport''
|
|
(for pluggable NICs, accompanied with ``-device ...,netdev=x'') or
|
|
``-nic user,hostfwd=[tcp|udp]:[hostaddr]:hostport-[guestaddr]:guestport''
|
|
(for embedded NICs). The new syntax allows different settings to be
|
|
provided per NIC.
|
|
|
|
@subsection -smb (since 2.6.0)
|
|
|
|
The ``-smb /some/dir'' argument is replaced by either
|
|
``-netdev user,id=x,smb=/some/dir '' (for pluggable NICs, accompanied
|
|
with ``-device ...,netdev=x''), or ``-nic user,smb=/some/dir''
|
|
(for embedded NICs). The new syntax allows different settings to be
|
|
provided per NIC.
|
|
|
|
@subsection -usbdevice (since 2.10.0)
|
|
|
|
The ``-usbdevice DEV'' argument is now a synonym for setting
|
|
the ``-device usb-DEV'' argument instead. The deprecated syntax
|
|
would automatically enable USB support on the machine type.
|
|
If using the new syntax, USB support must be explicitly
|
|
enabled via the ``-machine usb=on'' argument.
|
|
|
|
@subsection -nodefconfig (since 2.11.0)
|
|
|
|
The ``-nodefconfig`` argument is a synonym for ``-no-user-config``.
|
|
|
|
@subsection -balloon (since 2.12.0)
|
|
|
|
The @option{--balloon virtio} argument has been superseded by
|
|
@option{--device virtio-balloon}.
|
|
|
|
@subsection -fsdev handle (since 2.12.0)
|
|
|
|
The ``handle'' fsdev backend does not support symlinks and causes the 9p
|
|
filesystem in the guest to fail a fair amount of tests from the PJD POSIX
|
|
filesystem test suite. Also it requires the CAP_DAC_READ_SEARCH capability,
|
|
which is not the recommended way to run QEMU. This backend should not be
|
|
used and it will be removed with no replacement.
|
|
|
|
@subsection -no-frame (since 2.12.0)
|
|
|
|
The @code{--no-frame} argument works with SDL 1.2 only. The other user
|
|
interfaces never implemented this in the first place. So this will be
|
|
removed together with SDL 1.2 support.
|
|
|
|
@subsection -rtc-td-hack (since 2.12.0)
|
|
|
|
The @code{-rtc-td-hack} option has been replaced by
|
|
@code{-rtc driftfix=slew}.
|
|
|
|
@subsection -localtime (since 2.12.0)
|
|
|
|
The @code{-localtime} option has been replaced by @code{-rtc base=localtime}.
|
|
|
|
@subsection -startdate (since 2.12.0)
|
|
|
|
The @code{-startdate} option has been replaced by @code{-rtc base=@var{date}}.
|
|
|
|
@subsection -virtioconsole (since 3.0.0)
|
|
|
|
Option @option{-virtioconsole} has been replaced by
|
|
@option{-device virtconsole}.
|
|
|
|
@subsection -clock (since 3.0.0)
|
|
|
|
The @code{-clock} option is ignored since QEMU version 1.7.0. There is no
|
|
replacement since it is not needed anymore.
|
|
|
|
@subsection -enable-hax (since 3.0.0)
|
|
|
|
The @option{-enable-hax} option has been replaced by @option{-accel hax}.
|
|
Both options have been introduced in QEMU version 2.9.0.
|
|
|
|
@subsection -drive file=json:@{...@{'driver':'file'@}@} (since 3.0)
|
|
|
|
The 'file' driver for drives is no longer appropriate for character or host
|
|
devices and will only accept regular files (S_IFREG). The correct driver
|
|
for these file types is 'host_cdrom' or 'host_device' as appropriate.
|
|
|
|
@section QEMU Machine Protocol (QMP) commands
|
|
|
|
@subsection block-dirty-bitmap-add "autoload" parameter (since 2.12.0)
|
|
|
|
"autoload" parameter is now ignored. All bitmaps are automatically loaded
|
|
from qcow2 images.
|
|
|
|
@subsection query-cpus (since 2.12.0)
|
|
|
|
The ``query-cpus'' command is replaced by the ``query-cpus-fast'' command.
|
|
|
|
@subsection query-cpus-fast "arch" output member (since 3.0.0)
|
|
|
|
The ``arch'' output member of the ``query-cpus-fast'' command is
|
|
replaced by the ``target'' output member.
|
|
|
|
@section System emulator devices
|
|
|
|
@subsection ivshmem (since 2.6.0)
|
|
|
|
The ``ivshmem'' device type is replaced by either the ``ivshmem-plain''
|
|
or ``ivshmem-doorbell`` device types.
|
|
|
|
@section System emulator machines
|
|
|
|
@subsection pc-0.10 and pc-0.11 (since 3.0)
|
|
|
|
These machine types are very old and likely can not be used for live migration
|
|
from old QEMU versions anymore. A newer machine type should be used instead.
|
|
|
|
@subsection prep (PowerPC) (since 3.1)
|
|
|
|
This machine type uses an unmaintained firmware, broken in lots of ways,
|
|
and unable to start post-2004 operating systems. 40p machine type should be
|
|
used instead.
|
|
|
|
@section Device options
|
|
|
|
@subsection Block device options
|
|
|
|
@subsubsection "backing": "" (since 2.12.0)
|
|
|
|
In order to prevent QEMU from automatically opening an image's backing
|
|
chain, use ``"backing": null'' instead.
|
|
|
|
@subsection vio-spapr-device device options
|
|
|
|
@subsubsection "irq": "" (since 3.0.0)
|
|
|
|
The ``irq'' property is obsoleted.
|