[aklug] Re: vme,vmx,...?

On 12/10/2010 10:28 AM, Christopher Howard wrote:
> On Fri, Dec 10, 2010 at 10:06:29AM -0900, Joshua J. Kugler wrote:
>> On Friday 10 December 2010, Christopher Howard elucidated thus:
>>> Okay, I know KVM needs "virtualization extensions" in the processor.
>>> Some google results said I need either vmx or smx flags. However, I
>>> have this real nice 32-bit Dell Precision 450, with dual Intel Xeon
>>> chips (model number not listed in cpuinfo) which has a "vme" flag. Is
>>> that like the 32-bit version of vmx? Or something different? I am
>>> trying to figure out if I have what I need to use KVM.
>>
>> According to
>> http://blog.incase.de/index.php/cpu-feature-flags-and-their-meanings/
>> VME is "Virtual-8086 Mode Enhancement"
>>
>> According to
>> http://www.howtogeek.com/howto/linux/linux-tip-how-to-tell-if-your-processor-supports-vt/
>> you do need VMX (Intel) or SVM (AMD).
>>
>> The linked article also reminds that it could be disabled in your BIOS,
>> so be sure to check there too.
>>
>
> Dang, no KVM then. Fooey.
>
> Checked the BIOS, and there was nothing on virtualization. I did enable hyperthreading, however, which hopefully will help some.
>

Just to re-iterate. If you don't have a virtualization aware processor and all you'll be
running is Linux.. then you should check out OpenVZ/Linux-VServer/User-Mode-Linux as well
as Xen in it's native mode.

- Shane
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Received on Fri Dec 10 11:08:25 2010