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About qemu

Home: https://qemu.org

Package license: GPL-2.0-only

Feedstock license: BSD-3-Clause

Summary: QEMU is a generic and open source machine & userspace emulator and virtualizer.

Development: https://github.com/qemu/qemu

Documentation: https://www.qemu.org/support/

QEMU is capable of emulating a complete machine in software without any need for hardware virtualization support. By using dynamic translation, it achieves very good performance. QEMU can also integrate with the Xen and KVM hypervisors to provide emulated hardware while allowing the hypervisor to manage the CPU. With hypervisor support, QEMU can achieve near native performance for CPUs. When QEMU emulates CPUs directly it is capable of running operating systems made for one machine (e.g. an ARMv7 board) on a different machine (e.g. an x86_64 PC board).

QEMU is also capable of providing userspace API virtualization for Linux and BSD kernel interfaces. This allows binaries compiled against one architecture ABI (e.g. the Linux PPC64 ABI) to be run on a host using a different architecture ABI (e.g. the Linux x86_64 ABI). This does not involve any hardware emulation, simply CPU and syscall emulation.

QEMU aims to fit into a variety of use cases. It can be invoked directly by users wishing to have full control over its behaviour and settings. It also aims to facilitate integration into higher level management layers, by providing a stable command line interface and monitor API. It is commonly invoked indirectly via the libvirt library when using open source applications such as oVirt, OpenStack and virt-manager.

QEMU as a whole is released under the GNU General Public License, version 2. For full licensing details, consult the LICENSE file.

Current build status

Current release info

Name Downloads Version Platforms
Conda Recipe Conda Downloads Conda Version Conda Platforms

Installing qemu

Installing qemu from the ucb-bar channel can be achieved by adding ucb-bar to your channels with:

conda config --add channels ucb-bar
conda config --set channel_priority strict

Once the ucb-bar channel has been enabled, qemu can be installed with conda:

conda install qemu

or with mamba:

mamba install qemu

It is possible to list all of the versions of qemu available on your platform with conda:

conda search qemu --channel ucb-bar

or with mamba:

mamba search qemu --channel ucb-bar

Alternatively, mamba repoquery may provide more information:

# Search all versions available on your platform:
mamba repoquery search qemu --channel ucb-bar

# List packages depending on `qemu`:
mamba repoquery whoneeds qemu --channel ucb-bar

# List dependencies of `qemu`:
mamba repoquery depends qemu --channel ucb-bar

Updating qemu-feedstock

If you would like to improve the qemu recipe or build a new package version, please fork this repository and submit a PR. Upon submission, your changes will be run on the appropriate platforms to give the reviewer an opportunity to confirm that the changes result in a successful build. Once merged, the recipe will be re-built and uploaded automatically to the ucb-bar channel, whereupon the built conda packages will be available for everybody to install and use from the ucb-bar channel. Note that all branches in the conda-forge/qemu-feedstock are immediately built and any created packages are uploaded, so PRs should be based on branches in forks and branches in the main repository should only be used to build distinct package versions.

In order to produce a uniquely identifiable distribution:

  • If the version of a package is not being increased, please add or increase the build/number.
  • If the version of a package is being increased, please remember to return the build/number back to 0.

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