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Re: [Xen-users] [Xen-devel] [SUCCESS] Xen 4.2-unstable Changeset 25099: VGA Passthrough to Windows 8 Consumer Preview HVM domU



On 26/03/2012 23:49, Pasi Kärkkäinen wrote:
On Mon, Mar 26, 2012 at 11:00:51PM +0800, Teo En Ming (Zhang Enming) wrote:
On 26/03/2012 22:15, Martin Wolf wrote:
Am 26.03.2012 14:40, schrieb Teo En Ming (Zhang Enming):
On 26/03/2012 20:23, Pavel Mateja wrote:
On 26/03/2012 17:15, Pavel Mateja wrote:
Dear Xen users, developers and David Techer,

I have just downloaded, compiled, and installed Xen 4.2-unstable
Changeset *_25099_* with Xen VGA Passthrough patches. Xen VGA
Passthrough to Windows 8 Consumer Preview HVM domU is
successful. Or I
should say *PARTIALLY* successful. Why? Please see the screenshots
below.
Hi,
which CPU do you have? Intel E6300?
Did you notice that CPU doesn't support VT-d?
Dear Pavel Mateja,

My CPU is Intel Pentium Dual Core E6300 2.8 GHz which supports Intel
Virtualization Technology, i.e. VT-x, not VT-d.

BUT, my Intel DQ45CB desktop motherboard supports Intel VT-d. The
motherboard BIOS also has VT-d option.

Thank you very much.
Hi again,
I'm affraid you have to cross-reference

http://processormatch.intel.com/CompDB/SearchResult.aspx?BoardName=DQ45CB


and
http://ark.intel.com/search/advanced?VTD=true
Dear Pavel Mateja,

I can confirm my Intel Pentium Dual Core E6300 2.8 GHz supports VT-x
and my Intel DQ45CB desktop board and motherboard BIOS supports VT-d.
Would you like to have a photo screenshot of the motherboard BIOS
showing the VT-d option? This is concrete evidence showing that my
hardware configuration supports VT-d. I can even post a video if you
want it.

Thank you very much.

afaik the vt-d support was in the chipset for the core2duo / quad
series and was moved to the cpu since the core "i" series. so i guess
he is right.

Oh I see.

Also you can verify the VT-d IOMMU support from Xen dmesg:
http://wiki.xen.org/wiki/Xen_Common_Problems#How_can_I_check_if_my_hardware_has_an_IOMMU_.28VT-d.29_and_it.27s_enabled_and_supported.3F

-- Pasi



Pasi,

Thank you for the link.

--
Yours sincerely,

Mr. Teo En Ming (Zhang Enming)
Singapore


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