OT: Intel-Matrix for VT-capability?

OT: Intel-Matrix for VT-capability?

[Oliver Rath]

Hi,

Im looking for an abillity seeing vt-capability of Intel-processors by
there name :-/

I.e. T7200 has vt, T3400 has not. Exists a rule for the naming scheme
seeing vt-capability? Alternatively, exists a matrix anywhere in the net
for this?

Im tired searching for vt-capability for every new OEM-intel-processor.
On intel-site _did_ exist a pdf-table (not all processors, but most of
T-series), but it seems to be removed.

Hfh,

Oliver

Re: OT: Intel-Matrix for VT-capability?

[Marc Bevand]

Oliver Rath <rath68 <at> web.de> writes:
> 
> Im looking for an abillity seeing vt-capability of Intel-processors by
> there name :-/
>
> I.e. T7200 has vt, T3400 has not. Exists a rule for the naming scheme
> seeing vt-capability? Alternatively, exists a matrix anywhere in the net
> for this?

Browse http://processorfinder.intel.com - Intel VT is reflected by the 
presence of "Intel® Virtualization Technology" in the supported feature list.

T7200: http://processorfinder.intel.com/details.aspx?sSpec=SL9SL
T3400: http://processorfinder.intel.com/details.aspx?sSpec=SLB3P

> Im tired searching for vt-capability for every new OEM-intel-processor.
> On intel-site _did_ exist a pdf-table (not all processors, but most of
> T-series), but it seems to be removed.

You are probably talking about the price list PDF file at 
http://www.intc.com/priceList.cfm

I too am very annoyed that so many entry-level and medium-level Intel 
processors don't seem to support Intel VT. For example the less expensive one 
supporting VT is the Core 2 Duo E8400 at $163. Whereas in the case of AMD even 
their cheap $40 processors support AMD-V.

-marc

Re: OT: Intel-Matrix for VT-capability?

[Arnd Bergmann]

On Friday 24 April 2009, Oliver Rath wrote:
> Hi,
> 
> Im looking for an abillity seeing vt-capability of Intel-processors by
> there name :-/
> 
> I.e. T7200 has vt, T3400 has not. Exists a rule for the naming scheme
> seeing vt-capability? Alternatively, exists a matrix anywhere in the net
> for this?
> 
> Im tired searching for vt-capability for every new OEM-intel-processor.
> On intel-site _did_ exist a pdf-table (not all processors, but most of
> T-series), but it seems to be removed.

http://en.wikipedia.org/wiki/List_of_Intel_Core_2_microprocessors is quite
good here. As a rule of thumb, anything higher than 6000 will have VT,
anything below 6000 will not. Interesting exceptions are

Doesn't have VT: E7300, Q8200, Q8400, E8190
Does have VT: T5600, U2xxx, SU3xxx, Celeron 900 (?)
May have VT[1]: T5500, Q8300, E7400, E7500, E5300, E5400

Interestingly, when you look at the price list, you will see that
*all* processors that are not being obviously phased out (i.e. have
the same or higher price as a superior model) and carry a
Pentium or Core 2 name come with VT enabled. I think it's very
unlikely that they will come out with anything new that does not
run KVM.

	Arnd <><

[1] http://www.heise.de/newsticker/Auch-billigere-Intel-Prozessoren-bald-mit-Virtualisierungsbefehlen--/meldung/136306
[2] http://www.intc.com/priceList.cfm

Re: OT: Intel-Matrix for VT-capability?

[Marc Bevand]

Arnd Bergmann <arnd <at> arndb.de> writes:
> 
> http://en.wikipedia.org/wiki/List_of_Intel_Core_2_microprocessors is quite
> good here. As a rule of thumb, anything higher than 6000 will have VT,
> anything below 6000 will not. Interesting exceptions are
> 
> Doesn't have VT: E7300, Q8200, Q8400, E8190
> Does have VT: T5600, U2xxx, SU3xxx, Celeron 900 (?)
> May have VT[1]: T5500, Q8300, E7400, E7500, E5300, E5400
> 
> Interestingly, when you look at the price list, you will see that
> *all* processors that are not being obviously phased out (i.e. have
> the same or higher price as a superior model) and carry a
> Pentium or Core 2 name come with VT enabled.

This is very wrong:
- none of the Pentium, Celeron, Atom processors, even the latest ones,
  come with VT
- none of the Core 2 Duo E7xxx and Core 2 Quad Q8xxx support VT
Be very careful into what you buy, check processorfinder.intel.com.

Interestingly I found out that Intel will enable VT on a very small
number of Core 2 and Pentium processors on June 12:
http://www.tcmagazine.com/comments.php?shownews=25886

-marc

Re: OT: Intel-Matrix for VT-capability?

[Avi Kivity]

Marc Bevand wrote:
> Arnd Bergmann <arnd <at> arndb.de> writes:
>   
>> http://en.wikipedia.org/wiki/List_of_Intel_Core_2_microprocessors is quite
>> good here. As a rule of thumb, anything higher than 6000 will have VT,
>> anything below 6000 will not. Interesting exceptions are
>>
>> Doesn't have VT: E7300, Q8200, Q8400, E8190
>> Does have VT: T5600, U2xxx, SU3xxx, Celeron 900 (?)
>> May have VT[1]: T5500, Q8300, E7400, E7500, E5300, E5400
>>
>> Interestingly, when you look at the price list, you will see that
>> *all* processors that are not being obviously phased out (i.e. have
>> the same or higher price as a superior model) and carry a
>> Pentium or Core 2 name come with VT enabled.
>>     
>
> This is very wrong:
> - none of the Pentium, Celeron, Atom processors, even the latest ones,
>   come with VT
>   

According to processorfinder, 3 out of the 8 Atoms come with VT.  Some 
Pentium Ds also do.  Maybe some Celerons.

> - none of the Core 2 Duo E7xxx and Core 2 Quad Q8xxx support VT
>   

Most Core 2s do support VT.

> Be very careful into what you buy, check processorfinder.intel.com.
>
> Interestingly I found out that Intel will enable VT on a very small
> number of Core 2 and Pentium processors on June 12:
>   

That's in addition to currently supported processors.

-- 
Do not meddle in the internals of kernels, for they are subtle and quick to panic.

Re: OT: Intel-Matrix for VT-capability?

[Marc Bevand]

On Tue, Apr 28, 2009 at 6:07 AM, Avi Kivity <avi@redhat.com> wrote:
> Marc Bevand wrote:
>>
>> This is very wrong:
>> - none of the Pentium, Celeron, Atom processors, even the latest ones,
>>  come with VT
>
> According to processorfinder, 3 out of the 8 Atoms come with VT.  Some
> Pentium Ds also do.  Maybe some Celerons.

Hmm, correct: some Atoms from the less common Z series do support VT.
Sheesh even Intel managed to confuse me :-)

Pentium D: Arnd and I were both talking about models "that are not
being obviously phased out". Pentium D is based on the NetBurst
microarch. None of the currently sold Core microarch-based Pentiums
support VT (which is why Arnd's post that said some did support VT
made me raise an eyebrow as this is clearly wrong).

Celeron: Arnd correctly pointed out that out of the hundreds of
Celeron models, only 1 mobile one supports VT: Celeron 900
(interesting find).

-marc

Re: OT: Intel-Matrix for VT-capability?

[Arnd Bergmann]

On Tuesday 28 April 2009, Marc Bevand wrote:
> >  As a rule of thumb, anything higher than 6000 will have VT,
> > anything below 6000 will not. Interesting exceptions are
> > 
> > Doesn't have VT: E7300, Q8200, Q8400, E8190
> > Does have VT: T5600, U2xxx, SU3xxx, Celeron 900 (?)
> > May have VT[1]: T5500, Q8300, E7400, E7500, E5300, E5400
> > 
> > Interestingly, when you look at the price list, you will see that
> > *all* processors that are not being obviously phased out (i.e. have
> > the same or higher price as a superior model) and carry a
> > Pentium or Core 2 name come with VT enabled.
> 
> This is very wrong:
> - none of the Pentium, Celeron, Atom processors, even the latest ones,
>   come with VT

All Pentium and Celeron processors have numbers below 6000, so
they fit in the rule of thumb I gave above. The Celeron 900
is listed as having VT on the processorfinder, but that also
incorrectly lists it as having two cores, so who knows?

> - none of the Core 2 Duo E7xxx and Core 2 Quad Q8xxx support VT
> Be very careful into what you buy, check processorfinder.intel.com.
>
> Interestingly I found out that Intel will enable VT on a very small
> number of Core 2 and Pentium processors on June 12:
> http://www.tcmagazine.com/comments.php?shownews=25886

These are the ones I listed above as 'may have VT':
Q8300, E7400, E7500, E5300, E5400. The link I gave was to another
article mentioning these exact numbers. The E7300, Q8200 and Q8400
I listed as 'Doesn't have VT' are the remaining ones E7xxx and Q8xxx
processors, which appear to be phased out (not sure about Q8400,
which was announced at the same time as this news).

	Arnd <><