[uml-devel] UML and AMD-64

[uml-devel] UML and AMD-64

[Tim Barbour]

I am wondering whether an AMD-64 box can host user-mode Linux. I know that an
AMD-64 system is supposed to be able to run 32-bit applications, but does that
extend as far as running a 32-bit UML virtual machine ?

Is there any possibility of running a 64-bit UML virtual machine on an AMD-64 ?

The UML website has no mention of an AMD-64 port of UML, but I have heard a
claim that it is possible to host a 64-bit UML on an AMD-64.

If anyone can shed light on this I would appreciate it.

Tim


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Re: [uml-devel] UML and AMD-64

[Jeff Dike]

trb@eastpac.com.au said:
> Is there any possibility of running a 64-bit UML virtual machine on an
> AMD-64 ? 

It is, and I'm working on it.

			Jeff



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Re: [uml-devel] UML and AMD-64

[Michael Koehne]

Moin Jeff Dike,

> > Is there any possibility of running a 64-bit UML virtual machine on an
> > AMD-64 ? 
> It is, and I'm working on it.

  i'm thinking about upgrading my oldest UML system to either a
  BiAthlon, which is known to work with SKAS, or to wait a few
  month more a dual Opteron system to become cheap. I remember
  the TT problems of UML running on duals, leading me to install
  SKAS.  Are there any experiences about running UML on an 64bit
  NUMA system ?

Bye Michael
-- 
  mailto:kraehe@copyleft.de             UNA:+.? 'CED+2+:::Linux:2.4.22'UNZ+1'
  http://www.xml-edifact.org/           CETERUM CENSEO WINDOWS ESSE DELENDAM


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[uml-devel] Re: [discuss] UML and AMD-64

[Jani Averbach]

On 2004-01-13 22:40+1100, Tim Barbour wrote:
> I am wondering whether an AMD-64 box can host user-mode Linux. I know that an
> AMD-64 system is supposed to be able to run 32-bit applications, but does that
> extend as far as running a 32-bit UML virtual machine ?
> 
> Is there any possibility of running a 64-bit UML virtual machine on an AMD-64 ?
> 

I have used an 32bit UML in my AMD64 (pure 64bit system). So it is
doable. I can't remember any hiccups and installation was really
straightforward.

BR, Jani

-- 
Jani Averbach



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Re: [uml-devel] Re: [discuss] UML and AMD-64

[Matt Ayres]

Did you use the skas3 patch?  My understand from looking at it is that
skas3 is written for i386 only, hence you would only be able to run a
32-bit kernel.  

On Tue, 2004-01-13 at 12:56, Jani Averbach wrote:
> On 2004-01-13 22:40+1100, Tim Barbour wrote:
> > I am wondering whether an AMD-64 box can host user-mode Linux. I know that an
> > AMD-64 system is supposed to be able to run 32-bit applications, but does that
> > extend as far as running a 32-bit UML virtual machine ?
> > 
> > Is there any possibility of running a 64-bit UML virtual machine on an AMD-64 ?
> > 
> 
> I have used an 32bit UML in my AMD64 (pure 64bit system). So it is
> doable. I can't remember any hiccups and installation was really
> straightforward.
> 
> BR, Jani
-- 
Matt Ayres <matta@tektonic.net>
TekTonic



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[uml-devel] Re: [discuss] UML and AMD-64

[Gerd Knorr]

Matt Ayres <matta@tektonic.net> writes:

> Did you use the skas3 patch?  My understand from looking at it is that
> skas3 is written for i386 only, hence you would only be able to run a
> 32-bit kernel.  

It also runs on 64bit kernels, but in tt mode only due to lacking skas
support.

  Gerd

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Re: [uml-devel] Re: [discuss] UML and AMD-64

[BlaisorBlade]

Alle 01:10, venerdì 20 febbraio 2004, Matt Ayres ha scritto:
> Did you use the skas3 patch?  My understand from looking at it is that
> skas3 is written for i386 only, hence you would only be able to run a
> 32-bit kernel.

Not exactly: it is for i386 only, so when you compile the host kernel for 
amd64, you cannot use it. However, I think that the porting probably is not 
too hard, having a test box at hand.

Bye
-- 
Paolo Giarrusso, aka Blaisorblade
Linux registered user n. 292729



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