[Xen-devel] Re: Live migration fails due to c/s 20627

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

On 12/15/2009 09:24 AM, Xu, Dongxiao wrote:
> If CPU has rdtsc but no rdtscp, then the VM exec control bit in VMCS
> won't be turned on. Therefore if rdtscp instruction runs, it will encounter
> invalid op code directly but no VMEXIT.
>    
Ah, right.  You'd need to make that particular illegal instruction vmexit.

    J

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