RE: [Xen-devel] tsc_mode == 1 and hvm guests

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Sun, 9 May 2010, Zhang, Xiantao wrote:
> How to handle the VM migration which occurs bettwen two different TSC 
> frequency machines ? 
> Xiantao

if the destination machine has a different tsc rate than vtsc is set to
1, rdtsc starts to be trapped if it wasn't before and in
hvm_get_guest_tsc we scale the the guest time using ns_to_vtsc before
returning to the user.


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