I''m trying to find some documentation on how exactly Xen uses VT-X. Where''s a good place to look for this? The Xen Wiki was fairly sparse... I''ve read the Pentium VT-X whitepaper, but I''m still at a loss as to how some of the pieces fit into the Xen structure under HVM (Grant tables, for instance), and i''d like to be able to find the answers, instead of asking 20 questions here. I''m also trying to figure out if there''s hardware out there now that will let me run unmodified guests - I know the 9xx series Pentium D''s support this, but I heard rumors that more was necessary. Motherboards? Updated BIOSes? Is there anywhere I can look for the requirements (or figure them out, if the Xen VT-X documentation somewhere is good), as well as, hopefully, a list of currently working boards? Thanks - -- Luke _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
On Feb 20, 2006, at 3:48 PM, Luke wrote:> I''m trying to find some documentation on how exactly Xen uses VT- > X. Where''s a good place to look for this? The Xen Wiki was fairly > sparse... I''ve read the Pentium VT-X whitepaper, but I''m still at a > loss as to how some of the pieces fit into the Xen structure under > HVM (Grant tables, for instance), and i''d like to be able to find > the answers, instead of asking 20 questions here. >I''m still quite stuck on this.> I''m also trying to figure out if there''s hardware out there now > that will let me run unmodified guests - I know the 9xx series > Pentium D''s support this, but I heard rumors that more was > necessary. Motherboards? Updated BIOSes? Is there anywhere I can > look for the requirements (or figure them out, if the Xen VT-X > documentation somewhere is good), as well as, hopefully, a list of > currently working boards?Anyone willing to post a motherboard model that had a BIOS that works with VT-X? Maybe I can figure it out if I have a few examples. It''d be nice to know what exactly VT-X requires from the BIOS as well, and why... _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Luke-
I''m trying to figure out the same thing... I see lots of post
like, "I''ve got an intel xyz processor and a mobo which supports
vt",
but no one mentions exactly what the mobo is...
http://lists.xensource.com/archives/html/xen-users/2006-02/msg00897.html
I''ve read a lot of documentation on Intel''s website, and
also an
article on anandtech , which told me which processors support VT, but
also vauge discussion that ''chipset'' and
''bios'' support is necessary.
However, none of the chipset or mobo docs (even intel branded boards!)
describe their support for VT. It''s very confusing...
Some places I''ve seen it rumored that all chipsets 945g and above
have vt support, this post:
http://lists.xensource.com/archives/html/xen-devel/2006-02/msg00886.html
suggests that it also works (at least, almost...) with 915
chipsets. It would be nice to have a definitive list. Any
intelligence you receive on this question would be appreciated...
thanks,
Erik
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On Feb 24, 2006, at 9:33 PM, Erik Dykema wrote:> Hi Luke- > I''m trying to figure out the same thing... I see lots of post > like, "I''ve got an intel xyz processor and a mobo which supports vt", > but no one mentions exactly what the mobo is... > > http://lists.xensource.com/archives/html/xen-users/2006-02/ > msg00897.html > > I''ve read a lot of documentation on Intel''s website, and also an > article on anandtech , which told me which processors support VT, but > also vauge discussion that ''chipset'' and ''bios'' support is necessary. > However, none of the chipset or mobo docs (even intel branded boards!) > describe their support for VT. It''s very confusing... > Some places I''ve seen it rumored that all chipsets 945g and above > have vt support, this post: > > http://lists.xensource.com/archives/html/xen-devel/2006-02/ > msg00886.html > > suggests that it also works (at least, almost...) with 915 > chipsets. It would be nice to have a definitive list. Any > intelligence you receive on this question would be appreciated...Unfortunately, I''ve figured out nearly nothing. I''d really like to see a page that explains: 1) What is necessary to run unmodified domUs - this is the big question - do you need a BIOS? Does every BIOS support this (I know this isn''t the case)? 2) An example list of which motherboards support VT-X 3) What exactly the BIOS does to enable VT-X If I figure any of this out somewhere other than the list, I''ll post back here with an update. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users