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| == Virtualization ==
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| Virtualization in Fedora 10 includes major changes, and new features, that continue to support KVM, Xen, and many other virtual machine platforms.
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| === Unified Kernel Image ===
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| The <code>kernel-xen</code> package has been obsoleted by the integration of paravirtualization operations in the upstream kernel. The <code>kernel</code> package in Fedora 10 supports booting as a guest domU, but will not function as a dom0 until such support is provided upstream. The most recent Fedora release with dom0 support is Fedora 8.
| | [[Category:Docs Project]] |
| | | [[Category:Draft documentation]] |
| Booting a Xen domU guest within a Fedora 10 host requires the KVM based <code>xenner</code>. Xenner runs the guest kernel and a small Xen emulator together as a KVM guest.
| | [[Category:Documentation beats]] |
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| {{Admon/important | KVM requires hardware virtualization features in the host system.| Systems lacking hardware virtualization do not support Xen guests at this time. }}
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| For more information refer to:
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| * http://sourceforge.net/projects/kvm
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| * http://kraxel.fedorapeople.org/xenner/
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| * http://fedoraproject.org/wiki/Features/XenPvops
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| * http://fedoraproject.org/wiki/Features/XenPvopsDom0
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| === Other Improvements ===
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| Fedora also includes the following virtualization improvements:
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| * TODO
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| ==== libvirt Updated to 0.6.0 ====
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| The <code>libvirt</code> package provides an API and tools to interact with the virtualization capabilities of recent versions of Linux (and other OSes). The <code>libvirt</code> software is designed to be a common denominator among all virtualization technologies with support for the following:
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| * The Xen hypervisor on Linux and Solaris hosts.
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| * The QEMU emulator
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| * The KVM Linux hypervisor
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| * The LXC Linux container system
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| * The OpenVZ Linux container system
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| * Storage on IDE/SCSI/USB disks, FibreChannel, LVM, iSCSI, and NFS
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| '''New features and improvements since 0.4.6:'''
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| * thread safety of the API and event handling
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| * allow QEmu domains to survive daemon restart
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| * extended logging capabilities
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| * support copy-on-write storage volumes
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| * support of storage cache control options for QEmu/KVM
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| * driver infrastructure and locking
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| * Test driver infrastructure
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| * parallelism in the daemon and associated config
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| * virsh help cleanups
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| * logrotate daemon logs
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| * more regression tests
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| * QEmu SDL graphics
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| * add --version flag to daemon
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| * memory consumption cleanup
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| * QEmu pid file and XML states for daemon restart
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| * gnulib updates
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| * PCI passthrough for KVM
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| * generic internal thread API
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| * RHEL-5 specific Xen configure option and code
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| * save domain state as string in status file
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| * add locking to all API entry points
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| * new ref counting APIs
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| * IP address for Xen bridges
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| * driver format for disk file types
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| * improve QEmu/KVM tun/tap performances
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| * enable floppies for Xen fully virt
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| * support VNC password settings for QEmu/KVM
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| * qemu driver version reporting
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| There were also dozens of cleanups, documentation enhancements, portability and bug fixes.
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| For further details refer to:
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| http://www.libvirt.org/news.html
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| ==== virt-manager Updated to 0.6.1 ====
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| The <code>virt-manager</code> package provides a GUI implementation of <code>virtinst</code> and <code>libvirt</code> functionality.
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| '''New features and improvements since 0.6.0:'''
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| * VM disk and network stats reporting (Guido Gunther)
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| * VM Migration support (Shigeki Sakamoto)
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| * Support for adding sound devices to an existing VM
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| * Enumerate host devices attached to an existing VM
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| * Allow specifying a device model when adding a network device to an existing VM
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| * Combine the serial console view with the VM Details window
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| * Allow connection to multiple VM serial consoles
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| * Bug fixes and many minor improvements.
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| For further details refer to:
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| http://virt-manager.et.redhat.com/
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| ==== virtinst Updated to 0.400.1 ====
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| The <code>python-virtinst</code> package contains tools for installing and manipulating multiple VM guest image formats.
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| '''New features and improvements since 0.400.0:'''
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| * Add virt-image -> vmx support to virt-convert, replacing virt-pack (Joey Boggs)
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| * Add disk checksum support to virt-image (Joey Boggs)
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| * Enhanced URL install support: Debian Xen paravirt, Ubuntu kernel and boot.iso, Mandriva kernel, and Solaris Xen Paravirt (Guido Gunther, John Levon, Cole Robinson)
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| * Expanded test suite
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| * Numerous bug fixes, cleanups, and minor improvements
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| For further details refer to:
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| * http://virt-manager.et.redhat.com/
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| ==== Xen Updated to 3.3.1 ====
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| Fedora 11 supports booting as a guest domU, but will not function as a dom0 until such support is provided in the upstream kernel. Support for a <code>pv_ops</code> dom0 is targeted for Xen 3.4.
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| '''Changes since 3.3.0:'''
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| * TODO
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| For further details refer to:
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| * http://www.xen.org/download/roadmap.html -- Xen roadmap
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| * http://xenbits.xen.org/paravirt_ops/patches.hg/ -- paravirt_ops patch queue
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