[新聞] VirtualBox 2.2 Beta 1
http://download.virtualbox.org/virtualbox/2.2.0_BETA1/
Version 2.2.0 Beta 1 (2009-03-17)
This version is a major update. The following major new features were added:
‧ OVF (Open Virtualization Format) appliance import and export (see chapter
3.8, Importing and exporting virtual machines, page 55)
‧ Host-only networking mode (see chapter 6.7, Host-only networking, page 87)
‧ Hypervisor optimizations with significant performance gains for high
context switching rates
‧ VT-x/AMD-V are enabled by default for newly created virtual machines
‧ USB (OHCI & EHCI) is enabled by default for newly created virtual machines
(Qt GUI only)
‧ Experimental USB support for OpenSolaris hosts
‧ Shared folders for Solaris and OpenSolaris guests
‧ OpenGL 3d acceleration for Linux and Solaris guests (see chapter 4.8,
Hardware 3D acceleration (OpenGL), page 69)
‧ Experimental support for OS X 10.6 (Snow Leopard) hosts running both the
64-bit and the 32-bit kernel In addition, the following items were fixed and
/or added:
‧ VMM: FreeBSD guest related fix for V86 flags (bug #2342)
‧ VMM: Fixed guru meditation when booting an AsteriskNow Linux VM (bug
#2342)
‧ VMM: Fixed PGMPOOLKIND_FREE guru meditation (bugs #3356, #3431)
‧ VMM: Fixed Windows XP boot hang (guest PAE + nested paging only)
‧ VMM: Allow mixing of VT-x/AMD-V and software virtualization
‧ VMM: fixed extremely slow safe mode booting in e.g. Windows 2008 (VTx/
AMD-V only)
‧ VMM: significant speedup of certain Grub boot loaders (e.g. Solaris) (VTx/
AMD-V only)
‧ VMM: real-mode IOPL fix for DOS guests (VT-x only)
‧ VMM: fixed VT-x detection with certain BIOSes that enable VT-x, but don’t
set the lock bit in MSR_IA32_FEATURE_CONTROL
‧ NAT: Truncated downloads with NAT (ftp) (bug #3257)
‧ NAT: Blocked UDP packets cause crash (bug #3426)
‧ USB: further reduced host CPU utilization for OHCI and EHCI; the “
VBoxInternal/Devices/usbohci/0/Config/FrameRate” CFG key is no longer
necessary and no longer supported
‧ VRDP: fixed hangs when VRDP server is enabled or disabled in runtime
‧ X11 guests: show the guest mouse pointer at the right position if the
virtual desktop is larger than the guest resolution (bug #2306)
‧ Solaris guests: added xpg4/xcu4 dependency to the guest additions installer
(bug #3524)
‧ Linux hosts: do proper reference counting to prevent unloading the
vboxnetflt module as long as this code is in use
‧ Linux installers: fixes for Slackware, Arch Linux and Linux from Scratch
systems
‧ Windows installers: Combined installer executable which contains both (32-
and 64-bit) architectures.
‧ VBoxManage: less cryptic command-line error messages
‧ VBoxManage: ’list vm’ commands now default to compact format
‧ Hard disks: improved immutable disk support to auto-reset diff file at VM
startup
‧ GUI: enable the audio adapter by default for new VMs
‧ GUI: warn if VT-x/AMD-V is not operational when starting a 64 bits guest
‧ GUI: deactivate 64 bits guest support when the host CPU does not support
VTx/AMD-V
‧ GUI: removed floppy icon from the status bar
‧ GUI: show build revision in about dialog
‧ GUI: fixed sticky status bar text
‧ GUI/Mac OS X: fixed disabled close button
‧ GUI: improved error dialogs
‧ 3D support: added opengl select/feedback support (bug #2920)
‧ 3D support: close opengl subsystem for terminated guest applications (bug
#3243)
‧ 3D support: fixed VM hangs when starting guests with 3D acceleration
enabled (bug #3437)
‧ PXE: fixed boot hangs when hardware virtualization is used (bug #2536)
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