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From: Derek Fawcus <dfawcus@cisco.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] Intel Vanderpool VM extensions
Date: Fri, 11 Mar 2005 15:24:11 +0000	[thread overview]
Message-ID: <20050311152410.K25865@mrwint.cisco.com> (raw)
In-Reply-To: <20050311105956.4df7bb93.martin_ml@parvat.com>; from martin_ml@parvat.com on Fri, Mar 11, 2005 at 10:59:56AM +0530

On Fri, Mar 11, 2005 at 10:59:56AM +0530, Martin C.Atkins wrote:
> On Thu, 10 Mar 2005 22:55:05 +0000 Derek Fawcus <dfawcus@cisco.com> wrote:
> >..
> > > <http://www.intel.com/cd/ids/developer/asmo-na/eng/197666.htm>.
> >..
> > Interesting... I'd not heard of this.  SoI had a quick glance...
> >
> > Does this stuff make the x86 completely virtualisable without
> > jumping through the hoops that vmware / qemu have to follow?
>
> I don't know. Looks complicated, doesn't it?

I did a bit more reading around,  and yup it does look like it'll
do it.  However it does it my sort of creating a 'ring -1' and
having the lower rings virtualised.  So...  what if one want's
to virtualise 'ring -1' :-)

> However, this means that yes, Vanderpool would/should (assuming
> they've got it "right" :-) make vmware 'trivial' (like MOL
> (maconlinux) is, on the Mac), but no, it will not help qemu at all,
> since the JIT interpretation of code is central to qemu's approach.

Actually it could help qemu - given that kqemu already exists.  It'd
just mean that kqemu would be able to handle rings 0/1/2 as well as
ring 3.

DF


      reply	other threads:[~2005-03-11 15:24 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-09 23:20 [9fans] a simple game Federico Benavento
2005-03-09 23:37 ` andrey mirtchovski
2005-03-10  0:00   ` Federico Benavento
2005-03-10  0:28     ` Adrian Tritschler
2005-03-10  0:42     ` David Leimbach
2005-03-10  1:05     ` andrey mirtchovski
2005-03-10  1:21       ` David Leimbach
2005-03-10  5:37         ` Federico Benavento
2005-03-10  5:39           ` Federico Benavento
2005-03-10  6:18             ` Russ Cox
2005-03-10  6:35               ` andrey mirtchovski
2005-03-10 20:11                 ` [9fans] Intel Vanderpool VM extensions Wes Kussmaul
2005-03-10 22:55                   ` Derek Fawcus
2005-03-11  5:29                     ` Martin C.Atkins
2005-03-11 15:24                       ` Derek Fawcus [this message]

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