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RE: [Xen-users] 64bit linux DomU on 32bit Dom0

  • To: "'Fajar A. Nugraha'" <fajar@xxxxxxxxx>
  • From: "Tanuj Bansal" <bansal.tanuj83@xxxxxxxxx>
  • Date: Sun, 14 Jun 2009 19:54:33 +0530
  • Cc: 'Xen User-List' <xen-users@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Sun, 14 Jun 2009 07:25:54 -0700
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I have the following 

# rpm -qa | grep xen

# cat /proc/cpuinfo

flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36
clflush mmx fxsr sse sse2 syscall nx mmxext fxsr_opt lm 3dnowext 3dnow up
pni lahf_lm ts ttp tm stc

# getconf LONG_BIT

I don't have hvm right now.

So can I upgrade my xen for 64bit to install 64Bit PV without issue and
where I can get the xen of 64Bit?


-----Original Message-----
From: Fajar A. Nugraha [mailto:fajar@xxxxxxxxx] 
Sent: Sunday, June 14, 2009 5:53 PM
To: bansal.tanuj83@xxxxxxxxx
Cc: Xen User-List
Subject: Re: [Xen-users] 64bit linux DomU on 32bit Dom0

On Sun, Jun 14, 2009 at 5:43 PM, Tanuj Bansal<bansal.tanuj83@xxxxxxxxx>
> Is there anyway to install 64Bit Linux DomU on 32Bit Linux Dom0?

Types of domU that can be run depends mostly on hypervisor, and not
dom0. So if you have 64bit hypervisor, you should be able to run 32
and 64bit PV and HVM domUs, regardless whether dom0 is 32 or 64bit.

If you have 32bit dom0 and 32bit hypervisor, you should be able to run
64bit HVM domU, but not 64bit PV domU.


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