(PC) VirtualBox v5.0 - 模擬器

2015.07.10

VirtualBox is a general-purpose full virtualizer for x86/x64 hardware.
Targeted at server, desktop and embedded use, it is now the only
professional-quality virtualization solution that is also Open Source
Software.

VirtualBox v5.0 Changelog:

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

Paravirtualization support for Windows and Linux guests to improve
time-keeping accuracy and performance (see the manual for more information)

Make more instruction set extensions available to the guest when running
with hardware-assisted virtualization and nested paging. Among others this
includes: SSE 4.1, SSE4.2, AVX, AVX-2, AES-NI, POPCNT, RDRAND and RDSEED
xHCI Controller to support USB 3 devices (see the manual for more information)

Drag and drop support (bidirectional) for Windows, Linux and Solaris guests
Disk image encryption (see the manual for more information)

VMs can now be started in separate mode. The VM process is started headless
while the frontend runs as a separate process which can be terminated without
stopping the VM.

GUI: VM guest-content scaling support (including 3D acceleration)
GUI: New User Interface settings page for customizing status-bar, menu-bar
and guest-content scaling
GUI: New Encryption settings tab for customizing encryption options for disk
images
GUI: HiDPI support including application icons and optional unscaled HiDPI
output on Mac OS X (including 3D acceleration)
GUI: Hotplugging support for SATA disks

New, modular audio architecture for providing a better abstraction of the
host audio backends

Support for the NDIS6 networking framework on Windows (default on Vista and
later)

In addition, the following items were fixed and/or added:

VMM: improved timing on Solaris hosts with older VT-x hosts without
preemption timers
VMM: further improvements for TSC frequency measurements and guest
timekeeping
VMM: debug facility now includes the guest CPU's FPU/SSE/extended state in
the core dump
VMM: fixed a hang under rare conditions on 32-bit hosts
VMM: several fixes
GUI: improved HID LEDs synchronization for Mac and Windows hosts. The
physical LEDs state now restored together with the VM state.
GUI: take the guest screen aspect ratio into account for the preview window
GUI: provide direct access to storage media in the VM selector
GUI: allow to save the VM state from the selector even if the VM is already
paused
VBoxManage: when exporting an appliance, support the suppression of MAC
addresses, which means they will be always recreated on import,
avoiding duplicate MAC addresses for VMs which are imported
several times
VBoxManage: now supports renaming storage controllers and USB controllers
Guest Control: major overhaul, for example fixing wrong parameter quoting
(bug #13157)
USB: added USB traffic capturing (see the manual for more information)
Made resizing X11 guests work more reliably
API: block the removal of the current snapshot if it has child snapshots
(only relevant for VMs without snapshottable hard disks, their presence
always prevented removal), which resulted in VM config corruption
API: mark VM configs with snapshots but without current snapshot as
inaccessible, as this combination is nonsense
API: fix information for some automatically generated events (only with
XPCOM, Windows host was not affected), which caused errors when getting
some of the attributes over the webservice (bug #12379)
API: fix crashes in Java API clients using the XPCOM binding, happened with
output parameters only (bug #11232)
API: a number of settings (e.g. network settings) can now also be changed
when the VM is in saved state
API: fixed incorrect resuming of VMs on host-resume unless they were
previously paused due to a host-suspend
API: don't lose the saved state and "current state changed" flag during
cloning of a VM
API: OS type description consistency fix (bug #14162)

VBoxSVC: don't keep the support driver permanently open
Main/Properties: properly drop transient guest properties when the VM is
powered off
VRDP: fixed a couple of races which may cause a crash during VM poweroff
ExtPack: don't fail if the TMP directory contains non-latin1 characters (bug
#14159)
3D: fix potential race in which might cause a crash on VM termination
3D: fixed a possible memory leak in the host service
Serial: new TCP/IP backend (see the manual for more information)
Storage: added USB mass storage device class (see the manual for more
information)
Storage: added vbox-img standalone tool for direct manipulation of virtual
hard disk images without VBoxManage
Storage: fixed crash as a result of I/O errors in certain conditions (bug
#13105)
NAT: fixed several potential crashes
NAT: don't forcibly reset/drop all connections when the link goes down
Netsniffer: properly handle changing of the trace file name at VM runtime
Audio: fixed audio output and input when changing the default audio device
more than once on OS X
Audio: fixed audio input on OS X under certain circumstances
ICH9: fixed the interrupt disable logic for MSI interrupts; should fix old

Linux guests with AHCI

USB: improve playback with USB sound devices attached to the emulated OHCI
controller
Audio: provide Linux guests a different AC97 audio codec type so Linux ALSA
does not mis-detect the link speed (default for new VMs)
BIOS: fix for booting from SCSI CD/DVD media
BIOS: fix for reads partially beyond end of disk (bug #14021)
VRDP: fixed listening for IPv6 on some systems (bug #14038)
rdesktop-vrdp: upgraded to version 1.8.3

Linux hosts: fixed a bug which made the netfilter driver ignore certain
events (bug #12264)

Mac OS X hosts: El Capitan fixes
Mac OS X hosts: fixed a bug which might trigger a host kernel panic if a VM
is started and another hypervisor is active
Solaris hosts: installer fix for very recent versions of Solaris
Guest Additions: added a heartbeat service (see the manual for more
information)
Linux hosts / guests: support for Linux distributions using systemd without
sysv emulation (e.g. ArchLinux)
Windows Additions/WDDM: improved video memory utilization and allow
more/bigger guest screens with large resolutions
(including HiDPI)
Linux Additions: added -s parameter to mount.vboxsf to be sloppy with
invalid parameters
X11 Additions: fixed wrong DPI value (bug #14151)
Mac OS X guests: limit the CPU family for legacy guests
Solaris Additions: added quiesce support to co-operate with Solaris'
fast-reboot feature

官方：http://www.virtualbox.org/

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