Re: [opensuse] Re: Zen v. vmware-Workstation to virtualize XP in 10.2

On Saturday 29 September 2007 04:56:28 David C. Rankin wrote:
Jonathan Ervine wrote:
On Friday 28 September 2007 09:25:47 David C. Rankin wrote:
Jonathan Ervine wrote:
On Thursday 27 September 2007 19:01:26 Jonathan Arnold wrote:
David C. Rankin wrote:
Mates,
I have a P4
duo-core processor w/1Gig of RAM and plenty of harddrive space.

Hmm. Crud.. i looks like I have 'vme' on both cores:
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr
pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
pbe constant_tsc pni monitor ds_cpl est tm2 cid xtpr

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr
pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm
pbe constant_tsc pni monitor ds_cpl est tm2 cid xtpr

Does anyone know if vme absolutely won't work? More reading to
do...

Sorry - definitely not supporting hardware assisted virtualisation
(i.e. capable of virtualising Windows operating systems):
http://www.howtogeek.com/howto/linux/linux-tip-how-to-tell-if-your-
processor-supports-vt/

Jon

Jon,

Is that a prohibition on being able to do it at all? Or, is that a
performance issue in that you won't be offloading the vt work to the
newer vt processor extensions?

That is going to prevent you from doing any hardware assisted
virtualisation (i.e. Windows). You will still be able to do
para-virtualisation (i.e. other Linuxes/BSDs). This is because there is
no version of Windows available with the necessary kernel changes
(apparently only one company can modify the Windows kernel...)

So in summary, in Xen are you able to:
Virtualise unmodified operating systems - no
Virtualise modified operating systems via para-virtualisation - yes

Jon
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