RE: Intel/VT

RE: Intel/VT

[Nakajima, Jun]

Thorolf Godawa wrote:
> Hi,
> 
> just short question:
> 
> Does Intel/VT works only in 64 bit-mode (with SuSE x86-64-kernel) or
> also in 32 bit-mode (i386)?
> 
> I installed SLES 10.0 beta1 i386 on the Xeon-machine, but I forgot to
> aktivate VT in the BIOS after the BIOS-update.
> 
> Now I only get "unknown image type: vmx" if I try to start a
> VMX-domain even after I activated VT in the BIOS, maybe I have to
> install SuSE with activated VT?
> 
> Thanks,

Do you happen to use x86_32 PAE Xen? It should work for both plain
32-bit and 64-bit. It will be available for x86_32 PAE soon.

Jun
---
Intel Open Source Technology Center

Re: [Xen-devel] RE: Intel/VT

[Thorolf Godawa]

Hi Jun,

 >Do you happen to use x86_32 PAE Xen?
sure, the computer should be equiped with more than 4GB RAM later!

 >It should work for both plain32-bit and 64-bit.
 >It will be available for x86_32 PAE soon.
So I have to deselect the kernel-bigsmp and select the kernel-smp?

Thanks a lot for your answer,
-- 

Chau y hasta luego,

Thorolf

Re: [Xen-devel] RE: Intel/VT

[Thorolf Godawa]

Hi Jun,

>Do you happen to use x86_32 PAE Xen?
sure, the computer should be equiped with more than 4GB RAM later!

>It should work for both plain32-bit and 64-bit.
>It will be available for x86_32 PAE soon.
So I have to deselect the kernel-bigsmp and select the kernel-smp?

Thanks a lot for your answer,
-- 

Chau y hasta luego,

Thorolf

RE: [Xen-devel] RE: Intel/VT

[Petersson, Mats]

> -----Original Message-----
> From: xen-users-bounces@lists.xensource.com 
> [mailto:xen-users-bounces@lists.xensource.com] On Behalf Of 
> Thorolf Godawa
> Sent: 04 February 2006 08:49
> To: Nakajima, Jun
> Cc: xen-devel@lists.xensource.com; xen-users@lists.xensource.com
> Subject: Re: [Xen-devel] RE: [Xen-users] Intel/VT
> 
> Hi Jun,
> 
>  >Do you happen to use x86_32 PAE Xen?
> sure, the computer should be equiped with more than 4GB RAM later!
> 
>  >It should work for both plain32-bit and 64-bit.
>  >It will be available for x86_32 PAE soon.
> So I have to deselect the kernel-bigsmp and select the kernel-smp?

No, you need to set  CONFIG_HIGHMEM4G instead off CONFIG_HIGHMEM64G.
That will limit the machines' kernel space to 4GB, and thus eliminate
the need for PAE. 

Of course, CONFIG_NOHIGHMEM will also turn off PAE, but may not work out
quite as well. 

In menuconfig, this can be found under X86 Processor Configuration, High
Memory support. Other configuration tools may use different paths... ;-)

--
Mats
> 
> Thanks a lot for your answer,
> -- 
> 
> Chau y hasta luego,
> 
> Thorolf
> 
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