I bissected with -icount+hpet looping behavior without kvm to:
commit 16b29ae1807b024bd5052301550f5d47dae958a2
Author: aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Wed Dec 17 23:28:44 2008 +0000
Add HPET emulation to qemu (Beth Kon)
On Thu, Nov 10, 2011 at 12:25 PM, Paolo Bonzini <pbonz...@redhat.com> wrote:
> On 11/10/2011 11:25 AM, Max Filippov wrote:
>
>> >
>>> > -icount should be ignored or give an error together with KVM. Would
>>> you
>>>
>> What's the background for that? (Unfortunately I'm completely
>> unfamiliar with kvm).
>>
>>
> With -icount, The vm_clock is updated with help from TCG (it counts
> instructions at 2^ICOUNT ns/instructions). With KVM, the instruction count
> is not available so KVM cannot provide this help.
>
> The patch you sent looks good, but perhaps you can include the above
> comment in the commit message and also include Xen? With these changes,
> you can add my Acked-by.
>
> Thanks,
>
> Paolo
>
>
