Ahamed K, Rafiq (HP)
2006-Jun-01 02:19 UTC
[Fedora-xen] HVM Loader Doesn''t See the "vcpus" Parameter?
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
Richard Camp
2006-Jun-01 03:00 UTC
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 > > ------------------------------------------------------------------------ > > -- > Fedora-xen mailing list > Fedora-xen@redhat.com > https://www.redhat.com/mailman/listinfo/fedora-xen >
Ahamed K, Rafiq (HP)
2006-Jun-01 16:24 UTC
RE: [Fedora-xen] HVM Loader Doesn''t See the "vcpus" Parameter?
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@campworld.net] Sent: Wednesday, May 31, 2006 9:01 PM To: Ahamed K, Rafiq (HP) Cc: fedora-xen@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 +010010058:14717dedba02> 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 > >------------------------------------------------------------------------> > -- > Fedora-xen mailing list > Fedora-xen@redhat.com > https://www.redhat.com/mailman/listinfo/fedora-xen >