VirtualBox 3.2.0 Beta 3 - 模擬器

http://download.virtualbox.org/virtualbox/3.2.0_BETA3/

This version is a major update. The following major new features were added:


- Following the acquisition of Sun Microsystems by Oracle Corporation, the
product is now called “Oracle VM VirtualBox” and all references were
changed without impacting compatibility
- Experimental support for Mac OS X guests (see chapter 3.1.1, Mac OS X
guests, page 47)
- Memory ballooning to dynamically in- or decrease the amount of RAM used by
a VM (64-bit hosts only) (see chapter 4.9, Memory ballooning, page 79)
- CPU hot-plugging for Linux (hot-add and hot-remove) and certain Windows
guests (hot-add only) (see chapter 9.4, CPU hot-plugging, page 158)
- New Hypervisor features: with both VT-x/AMD-V on 64-bit hosts, using large
pages can improve performance (see chapter 10.5, Nested paging and VPIDs,
page182); also, on VT-x, unrestricted guest execution is now supported (if
nested paging is enabled with VT-x, real mode and protected mode without
paging code runs faster, which mainly speeds up guest OS booting)
- Support for deleting snapshots while the VM is running
- Support for multi-monitor guest setups in the GUI for Windows guests (see
chapter 3.5, Display settings, page 53)
- USB tablet/keyboard emulation for improved user experience if no Guest
- Additions are available (see chapter 3.4.1, “Motherboard” tab, page 51).
- LsiLogic SAS controller emulation
- RDP video acceleration (see chapter 7.1.8, VRDP video redirection, page 111)
- NAT engine configuration via API and VBoxManage
- Use of host I/O cache is now configurable (see chapter 5.7, Disk images and
I/O caching, page 91)
- Guest Additions: added support for executing guest applications from the
host system (replaces the automatic system preparation feature)
- OVF: enhanced OVF support with custom namespace to preserve settings that
are not part of the base OVF standard
In addition, the following items were fixed and/or added:
- VMM: fixed Windows 2000 guest crash when configured with a large amount of
RAM (bug #5800)
- Linux/Solaris guests: PAM module for automatic logons added
- GUI: guess the OS type from the OS name when creating a new VM
- GUI: added VM setting for passing the time in UTC instead of passing the
local host time to the guest (bug #1310)
- GUI: fixed seamless mode on secondary monitors (bugs #1322 and #1669)
- GUI: offer to download the user manual in the OSE version (bug #6442)
- Main: allow to start a VM even if a virtual DVD or floppy medium is not
accessible
- Settings: be more robust when saving the XML settings files
- Mac OS X: rewrite of the CoreAudio driver and added support for audio input
(bug #5869)
- Mac OS X: external VRDP authentication module support (bug #3106)
- Mac OS X: Moved the realtime dock preview settings to the VM settings (no
global option anymore). Use the dock menu to configure it.
- Mac OS X: added the VM menu to the dock menu
- 3D support: fixed corrupted surface rendering (bug #5695)
- 3D support: fixed VM crashes when using ARB_IMAGING (bug #6014)
- 3D support: fixed assertion when guest applications uses several windows
with single OpenGL context (bug #4598)
- 3D support: added GL_ARB_pixel_buffer_object support
- 3D support: added OpenGL 2.1 support
- 3D support: fixed Final frame of Compiz animation not updated to the screen
(Mac OS X only) (bug #4653)
- 3D support: fixed blank screen after loading snapshot of VM with enabled
Compiz
- Added support for virtual high precision event timer (HPET)
- OVF: fixed mapping between two IDE channels in OVF and the one IDE
controller in VirtualBox
- OVF: fix VMDK format string identifiers and sort XML elements from rasd:
namespace alphabetically as prescribed by standard
- VBoxShell: interactive Python shell extended to be fully functional TUI for
VirtualBox

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