[Fedora-xen] HVM Loader Doesn't See the "vcpus" Parameter?
Richard Camp
rcamp at campworld.net
Thu Jun 1 03:00:47 UTC 2006
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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