File: qemu-system.NEWS

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qemu 1%3A5.2%2Bdfsg-10
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qemu (1.3.0+dfsg-4exp) experimental; urgency=low

  Starting from 1.3.0 release, qemu-system package, which provided
  QEMU system emulation targets for many architectures, has been
  split into several packages, each providing a related,
  per-base-architecture, set of emulators, and qemu-system-misc
  package which contains some "other" architectures.  There are
  also qemu-system-common package, which provides common files for
  all other qemu-system-*, packages.  Former qemu-system package
  now become a meta-package which installs emulators for all
  available targets as before.

 -- Michael Tokarev <mjt@tls.msk.ru>  Tue, 22 Jan 2013 01:38:27 +0400

qemu (0.12.3+dfsg-3) unstable; urgency=low

  Starting with QEMU 0.12.0, KQEMU support has been removed from
  upstream, as it has not seen active development for a few years now,
  while causing regressions or limitations for non-KQEMU users.

 -- Aurelien Jarno <aurel32@debian.org>  Wed, 24 Mar 2010 23:14:35 +0100

qemu (0.10.3-2) unstable; urgency=low

  Starting with QEMU 0.10.0, it is possible to control how the host
  cache is used to access block data, using the cache= suboption of the
  -drive option. The following suboptions are available:
  * none: The host page cache is entirely avoided.
  * writeback (default in QEMU 0.9.x): Writeback caching reports data
    writes as completed as soon as the data is present in the host page
    cache. This is safe as long as you trust your host. If your host 
    crashes or loses power, then the guest may experience data 
    corruption.
  * writethrough (default in QEMU 0.10.x): The host page cache is used
    to read and write data but write notification is sent to the guest 
    only when the data has been reported as written by the storage
    subsystem.

  Note that depending on your configuration (filesystem, encryption,
  kernel version, etc.), disk accesses can be very slow with the default
  cache policy (writethrough). You can use the writeback cache policy 
  instead, but the data integrity is not assured anymore.

  See qemu(1) for more details.

 -- Aurelien Jarno <aurel32@debian.org>  Sun, 03 May 2009 23:22:29 +0200