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Re: [Xen-devel] hap_2mb and hap_1gb options


  • To: AP <apxeng@xxxxxxxxx>
  • From: Keir Fraser <keir@xxxxxxx>
  • Date: Thu, 08 Mar 2012 21:44:13 +0000
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 08 Mar 2012 21:45:04 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xen.org>
  • Thread-index: Acz9dJoU9R2pkcSuCkCV77ulEMSigw==
  • Thread-topic: [Xen-devel] hap_2mb and hap_1gb options

On 08/03/2012 19:38, "AP" <apxeng@xxxxxxxxx> wrote:

> On Thu, Mar 8, 2012 at 1:47 AM, Keir Fraser <keir@xxxxxxx> wrote:
>> On 08/03/2012 06:11, "Keir Fraser" <keir.xen@xxxxxxxxx> wrote:
>> 
>>>> Have I added the options in the right place? Do I need to do anything
>>>> else to disable super pages?
>>> 
>>> Unfortunately there is no logging output that indicates that the
>>> hap_2mb/hap_1gb=0 options are working. You have set the options correctly.
>>> 
>>> I will sort out a small patch for this.
>> 
>> Done as xen_unstable:24992. I removed the VMX-specific "EPT supports XX
>> super page" lines, and replaced with a single line of the form (for
>> example):
>> HVM: HAP page sizes: 4kB, 2MB [disabled], 1GB [disabled]
>> 
>> The '[disabled]' bit corresponds to setting hap_2mb/1gb=0.
> 
> Thank you. This is very helpful. I realize that this is just an info
> output patch albeit a useful one. So any chance of having this
> considered for a backport to Xen 4.1.x?

Yes, should be easy to do.

 -- Keir

> AP
> 
>>  -- Keir
>> 
>>>  -- Keir
>>> 
>>>> Thanks,
>>>> AP
>>>> 
>>>> _______________________________________________
>>>> Xen-devel mailing list
>>>> Xen-devel@xxxxxxxxxxxxx
>>>> http://lists.xen.org/xen-devel
>>> 
>>> 
>> 
>> 



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