OK, so how can I tell if VBOX is running in raw mode as explained by
bullett 3 of section:
------------------------------------
Inside a virtual machine
Your CPU can be *running guest ring-3 code natively* (within the ring-3
host VM process). With VirtualBox, we call this "raw ring 3". This is,
of course, the most efficient way to run the guest, and hopefully we
don't leave this mode too often. The more we do, the slower the VM is
compared to a native OS, because all context switches are very expensive.
--------------------------------------
Also, this does not seem relevant to non-VT cpu's!
Cheers,
JD
Michael Thayer wrote:
JD wrote:
I have heard of VM's which let guest code run directly
on cpu. I dont know much of the details of this, but I
suspect it might apply only to guest apps which are
running in user mode only (i.e. no syscall's). Perhaps someone
on this list could elaborate on this.
When it is running in so-called raw mode, as opposed to when it is using
hardware virtualisation, VirtualBox executes guest user mode natively
and kernel mode semi-natively (that is, it makes use of a few tricks to
do so). See http://www.virtualbox.org/wiki/VirtualBox_architecture if
you are interested in the details.
Regards,
Michael
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