ChangeLog/2.11: Difference between revisions

From QEMU
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== Build Information ==
== Build Information ==
=== GIT submodules ===
When building QEMU directly from a GIT checkout, 'make' will attempt to run 'git' to checkout a number of [[Documentation/GitSubmodules|GIT submodules]], which may have implications for some development environment setups.


=== Build Dependencies ===
=== Build Dependencies ===

Revision as of 14:29, 6 November 2017

Warning: unsupported host systems

Support for Solaris 9 and earlier has been removed.

Support for AIX has been removed.

Support for the ia64 (Itanium) host CPU architecture has been removed.

Unsupported host setups are CPU and operating systems which we do not have access to and are thus unable to test. They will continue to work in this release (though configure will warn you about the unsupported status), but in a future QEMU release we may drop support for those hosts unless somebody volunteers to help us with maintaining them (and can provide build/CI machines).

This affects the OSes:

  • GNU/kFreeBSD
  • DragonFly BSD
  • OpenBSD (we have a build system for OpenBSD but would still be interested in talking to people who want to help us with supporting and improving QEMU on this OS)
  • Solaris
  • Haiku

System emulation

Incompatible changes

Deprecated options

  • The command-line option "-hdachs" is now deprecated. Use the geometry options of "-device" instead.
  • The command-line option "-usbdevice" is now deprecated, use "-device" instead.
  • Using "-net dump" for capturing network traffic is now deprecated, use "-object filter-dump" with "-netdev" instead.
  • The parameters "serial", "trans", "secs", "heads", "cyls" and "addr" of the "-drive" option are now deprecated. Use the corresponding options of "-device" instead.
  • The monitor commands "usb_add" and "usb_del" are now deprecated, use "device_add" and "device_del" instead.
  • The monitor commands "host_net_add" and "host_net_remove" are now deprecated. Use "netdev_add" and "netdev_del" instead.
  • The "-nodefconfig" option is now deprecated. Use "-no-user-config" instead.

Future incompatible changes

  • Three options are using different names on the command line and in configuration file. In particular:
    • The "acpi" configuration file section matches command-line option "acpitable";
    • The "boot-opts" configuration file section matches command-line option "boot";
    • The "smp-opts" configuration file section matches command-line option "smp".
-readconfig will standardize on the name for the command line option.
  • Behavior of automatic calculation of SMP topology when some SMP topology options for -smp are omitted (sockets, cores, threads) will change in the future. If guest ABI needs to be preserved on upgrades while using the SMP topology options, users should either set set all options explicitly (sockets, cores, threads), or omit all of them.
  • Devices "allwinner-a10", "pc87312", "ssi-sd" will be configured with explicit properties instead of implicitly. This is unlikely to affect users.
  • For x86, specifying a CPUID feature with both "+feature/-feature" and "feature=on/off" will cause a warning. The current behavior for this combination ("+feature/-feature" wins over "feature=on/off") will be changed so that "+feature" and "-feature" will be synonyms for "feature=on" and "feature=off" respectively).

Alpha

68k

ARM

Microblaze

MIPS

Nios2

OpenRISC

PowerPC

pSeries

s390

SH

SPARC

TileGX

Tricore

x86

KVM

Xen

Xtensa

Device emulation and assignment

ACPI

Audio

Block devices

Graphics

Input devices

IPMI

Network devices

SCSI

PCI/PCIe

USB

VFIO

virtio

Xen

fw_cfg

9pfs

Character devices

Crypto subsystem

GUI

Monitor

Migration

Network

Block devices and tools

User-mode emulation

TCG

Guest agent

Build Information

GIT submodules

When building QEMU directly from a GIT checkout, 'make' will attempt to run 'git' to checkout a number of GIT submodules, which may have implications for some development environment setups.

Build Dependencies

Known issues