[CentOS] Xen cpu requirements

Wed Jul 14 17:49:12 UTC 2010
Dominik Zyla <gavroche at gavroche.pl>

On Wed, Jul 14, 2010 at 12:32:12PM -0500, David Dyer-Bennet wrote:
> I'm installing Centos 5.5 on a new Dell R301 server.  I wanted to run Xen
> and have the full virtualization possibilities (this is our development
> support server, so it runs a few real services and is available for
> playing with things; putting the "playing with things" functions into
> virtual servers would protect the "few real services", and make it easier
> to clean up afterwards).
> I have enabled virtualization support in the BIOS.
> /proc/cpuinfo says I have
> model name      : Intel(R) Xeon(R) CPU           X3450  @ 2.67GHz
> and
> flags           : fpu tsc msr pae cx8 apic mtrr cmov pat clflush acpi mmx
> fxsr sse sse2 ss ht syscall nx lm constant_tsc ida pni est ssse3 cx16
> sse4_1 sse4_2 popcnt lahf_lm
> The "vmx" flag doesn't appear to be set.
> (I'm working from
> <http://www.centos.org/docs/5/html/Virtualization-en-US/ch-op-sys-support.html>,
> by the way; I note that document is from 2007 or maybe even 2006, so
> perhaps some things aren't fully up-to-date.)
> So, does that mean my Xeon-based server doesn't have hardware
> virtualization assistance?

It loks like X3450 has no VMX instructions.

Dominik Zyla

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