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[Qemu-devel] [ANNOUNCE] QEMU 1.3.0 release

From: Anthony Liguori
Subject: [Qemu-devel] [ANNOUNCE] QEMU 1.3.0 release
Date: Mon, 03 Dec 2012 14:51:49 -0600


On behalf of the QEMU Team, I'd like to announce the availability of the
QEMU 1.3 release!


This release contains over 1700 changesets from 118 unique authors.

See the ChangeLog on the wiki for a full changelog:


Major features include:
 - After nearly 6 years of work, all remaining differences between the
   qemu-kvm.git and qemu.git have been merged into qemu.git
 - QEMU can now use the Linux VFIO driver to assign PCI devices to a virtual 
 - USB3 has been vastly improved, including support for USB mass storage
   devices and MSI/MSI-X support for the XHCI controller.
 - New paravirtualized hardware random number generator device.
 - Glusterfs volumes can be accessed with "gluster://" URIs for "-drive"
   and similar options. Optionally the transport can also be specified, as
   in "gluster+tcp://" (other supported transports are "unix" and "rdma").
 - A new block job is supported: live block commit (also known as
   "snapshot deletion") moves data from an image to another in the backing
   file chain.
 - A new block job is supported: live disk mirroring (also known as
   "storage migration") moves data from an image to another.
 - The sendkey monitor command is now available via QMP.
 - MIP Loongson Multimedia Instructions are now implemented.
 - MIPS32/64 ASE DSP Instructions are now implemented.
 - x86: the TSC frequency can be larger than 2.147 GHz.
 - TCG (emulation) supports the SMEP (Supervisor Mode Execution
   Prevention) and SMAP (Supervisor Mode Access Prevention) features of
   newer x86 processors.
 - New CPU models: "Haswell" and "Opteron_G5"
 - xtensa: Single precision floating point instructions are now implemented.
 - Emulation of the MC146818 real-time clock (used on PC and several
   other boards) does not wake up QEMU anymore every second to update the
 - USB redirection now supports live migration.
 - Several bugs in the AHCI controller were fixed to support recent Windows 
 - qemu-img now can output information in JSON format using "qemu-img info 
 - NBD block devices can now be specified using URI syntax.  "nbd://"
   defaults to TCP transport, while "nbd+tcp://" and "nbd+unix://" can be
   used (similar to Gluster) to specify it.
 - QEMU embeds an NBD server, accessible via the monitor.
 - Windows hosts support asynchronous disk I/O.
 - The monitor now remains responsive during incoming migration.  The
   new NBD server is also available during incoming migration.
 - spice: QEMU will only send changed screen content to the Spice client
   when running in legacy VGA mode.
 - Improved support for sandboxing using seccomp mode 2 with libvirt

I'd like to thank everyone who contributed to this release by submitting
patches, testing out -rcs, or reporting bugs during the release process!


Anthony Liguori

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