[virt-tools-list] Windows XP 32 guest - i686 or x86_64

Grant Williamson traxtopel at gmail.com
Tue Sep 21 10:12:05 UTC 2010


  But to be clear, the cpu should be left at default x86_64 for the 32bit Windows XP guest.

On 09/21/2010 10:38 AM, Daniel P. Berrange wrote:
> On Tue, Sep 21, 2010 at 06:06:54PM +1000, Justin Clift wrote:
>> On 09/20/2010 05:22 PM, Grant Williamson wrote:
>>> Hi,
>>> if I install a 32 bit Windows XP Guest using virt-manager, the default
>>> arch is set to x86_64.
>>> Is there any advantage using x86_64 or should I switch to i686?.
>>> Or does it make no difference.
>> Hi Grant,
>>
>> If you switch the vm to 32-bit mode, it will use the qemu emulator
>> without hardware acceleration.
> It shouldn't do that. It should just be using KVM with a 32-bit
> CPU model specified. Much older libvirt used to drop back to QEMU
> in this case, but we fixed that.
>
> Daniel




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