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Re: [Xen-API] [XCP] CPU Masking AMD Opteron

  • To: "xen-api@xxxxxxxxxxxxx" <xen-api@xxxxxxxxxxxxx>
  • From: Brett Westover <bwestover@xxxxxxxxxxx>
  • Date: Fri, 15 Mar 2013 15:32:58 +0000
  • Accept-language: en-US
  • Delivery-date: Fri, 15 Mar 2013 15:34:08 +0000
  • List-id: User and development list for XCP and XAPI <xen-api.lists.xen.org>
  • Thread-index: Ac4hjXwaZseLPfz8S4Sk1EbJLh4GOwAAOXPAAABhB5A=
  • Thread-topic: [XCP] CPU Masking AMD Opteron

>Most likely, the new CPU types have either the same features, or some more. In 
>this case, you should be able to mask >any new features and add the new hosts 
>to your pool (if you use XenCenter, I believe it will offer to do this 
>>automatically). In case your current CPUs have features that the new ones 
>don't have and vice versa, you should mask >all CPUs down to the common 
>feature vector (logical AND of the feature vectors).

>> What does 'maskable: full' mean? Is there a certain feature to look 
>> for on cpu that makes it 'maskable?'

>When "maskable" is "full", this means that all of the feature bits in 
>"features" can be masked. This is the case for >all AMD Opteron CPUs since a 
>few years.

Thanks! I was hoping that was the answer.



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