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Re: [Xen-devel] 32bit-pv-VM 128G memory limited


  • To: xen-devel@xxxxxxxxxxxxxxxxxxx
  • From: "James (song wei)" <jsong@xxxxxxxxxx>
  • Date: Mon, 2 Nov 2009 22:14:03 -0800 (PST)
  • Delivery-date: Mon, 02 Nov 2009 22:14:31 -0800
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Keir 
 could you please say it in more detail? 

Thanks,
James 

Keir Fraser-3 wrote:
> 
> This should all already happen by default.
> 
>  -- Keir
> 
> On 02/11/2009 07:49, "James Song" <jsong@xxxxxxxxxx> wrote:
> 
>> Hi, 
>>  
>>  
>>     Since 32-bit pv-domUs require memory below the 128G boundary (IIRC)
>> but
>> tools don't enforce this.  So we need a "memory pool" for 32bit pv-domUs.
>> When starting a 32-bit domU, allocate memory from this pool.  If starting
>> a
>> 64-bit domUs or 32bit hvm dom (which don't suffer the 128G boundary
>> limitation), allocate memory from above the boundary first, only
>> allocating
>> from the lower pool when needed.
>>  
>> Thanks,
>> James (Song Wei)
>>  
> 
> 
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
> 
> 

-- 
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