2 64-bit guests, Bit guests – Sun Microsystems VIRTUALBOX VERSION 3.1.0_BETA2 User Manual
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3 Configuring virtual machines
Solaris 10, OpenSolaris
Fully supported (32 bits and 64 bits). Guest Additions are
available.
FreeBSD
Limited support. Guest Additions are not available yet.
OpenBSD
Versions 3.7 and later are supported. Guest Additions are not available
yet.
OS/2 Warp 4.5
Requires hardware virtualization to be enabled. We officially support
MCP2 only; other OS/2 versions may or may not work. Guest Additions are
available with a limited feature set.
1
3.2 64-bit guests
Starting with version 2.0, VirtualBox supports 64-bit guest operating systems. Starting
with version 2.1, you can even run 64-bit guests on a 32-bit host operating system.
The hardware prerequisites are identical for both cases.
In particular, 64-bit guests are supported under the following conditions:
1. You need a 64-bit processor with hardware virtualization support (see chapter
“Acceleration” tab: hardware vs. software virtualization
, page
2. You must enable hardware virtualization for the particular VM for which you
want 64-bit support; software virtualization is not supported for 64-bit VMs.
3. If you want to use 64-bit guest support on a 32-bit host operating system, you
must also select a 64-bit operating system for the particular VM. Since supporting
64 bits on 32-bit hosts incurs additional overhead, VirtualBox only enables this
support upon explicit request.
On 64-bit hosts, 64-bit guest support is always enabled, so you can simply install
a 64-bit operating system in the guest.
Warning: On any host, you should enable the I/O APIC for virtual machines
that you intend to use in 64-bit mode. This is especially true for 64-bit Win-
dows VMs. See chapter
, page
. In addition, for 64-bit
Windows guests, you should make sure that the VM uses the Intel network-
ing device, since there is no 64-bit driver support for the AMD PCNet card;
see chapter
, page
If you use the “Create VM” wizard of the VirtualBox graphical user interface (see
chapter
Creating your first virtual machine
, page
), VirtualBox will automatically
use the correct settings for each selected 64-bit operating system type.
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See chapter
, page
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