Re: [Xen-users] Switch Hardware Virtualization On/Off

["Fajar A. Nugraha" <fajar@xxxxxxxxx>]

On Tue, Jun 9, 2009 at 7:30 PM, Nick Couchman<Nick.Couchman@xxxxxxxxx> wrote:
> I think you're talking about two different technologies, here.  The CPU
> support for Virtualization Technology (VT) should be turned on and left on.
> There's absolutely no reason to turn it off

Some vendors seem to think otherwise, and ship servers with VT
disabled by default. Probably due to something like
http://www.securityfocus.com/columnists/451 , even if no real threat
currently exist.

> A guest can either
> run a PV kernel or a standard kernel.  If it runs a PV kernel, it is a PV
> domU, if it runs a standard kernel, it must be run inside an HVM domU.

Yeah, but the limit gets blurred with pv_ops kernel, where the same
kernel can be used for both :)

-- 
Fajar

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