[Fedora-xen] HVM Loader Doesn't See the "vcpus" Parameter?

[Ahamed K, Rafiq (HP)]

I haven't read that anywhere. If you find a pointer, can you please
forward me?
And moreover in the latest XEN 3.0.2 they have the support for SMP
Guests. And my belief was that was for  vmx guests too?

Thanks R


-----Original Message-----
From: Richard Camp [mailto:rcamp at campworld.net] 
Sent: Wednesday, May 31, 2006 9:01 PM
To: Ahamed K, Rafiq (HP)
Cc: fedora-xen at redhat.com
Subject: Re: [Fedora-xen] HVM Loader Doesn't See the "vcpus" Parameter?

Hello,

If memory serves me correctly Intel's VT-X technology supports only one 
virtual cpu.  Even if you have 4 cores the guest OS will only see one of

them.  Multiprocessor Windows would be pointless.

A modified xen guest would see multiple cpus. 

Richard

Ahamed K, Rafiq (HP) wrote:
> Every time "hvmloader" comes up to load a VM, it shows  cpu=1 as 
> detected, no matter what number you give in .hvm configuration file. I

> have vcpus=2 and cpus = "2-4" in my .hvm file!
>  
> Any idea why is this?  Or Am I missing anything?
>  
> I am guessing due to this I am not able to run the un-modified 
> "Multiprocessor" Windows.
>  
> Any help would be appreciated.
>  
> Thanks R
>  
>  
> These are the details of my configuration
>  
> I am having a server with 2 dual core XEON with VT-x enabled on it.
>  
> Linux linux 2.6.16.13-xen #2 SMP Wed May 24 10:41:28 MDT 2006 i686 
> i686 i386 GNU/Linux
>  
> linux:~ # xm info
> host                   : linux
> release                : 2.6.16.13-xen
> version                : #2 SMP Wed May 24 10:41:28 MDT 2006
> machine                : i686
> nr_cpus                : 8
> nr_nodes               : 1
> sockets_per_node       : 2
> cores_per_socket       : 2
> threads_per_core       : 2
> cpu_mhz                : 2667
> hw_caps                : 
> bfebfbff:20100000:00000000:00000180:000064bd:00000000:00000001
> total_memory           : 3583
> free_memory            : 2522
> xen_major              : 3
> xen_minor              : 0
> xen_extra              : -unstable
> xen_caps               : xen-3.0-x86_32 hvm-3.0-x86_32
> platform_params        : virt_start=0xfc000000
> xen_changeset          : Sun May 21 20:15:58 2006 +0100
10058:14717dedba02
> cc_compiler            : gcc version 4.0.2 20050901 (prerelease) (SUSE

> Linux)
> cc_compile_by          : root
> cc_compile_domain      : local
> cc_compile_date        : Wed May 24 10:31:04 MDT 2006
>  
>
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>
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