[Qemu-devel] Re: Live Migration of 32-bit Linux guest broken since 2.6.35-rc2

[Gleb Natapov]

On Wed, Jun 09, 2010 at 06:08:23PM +0300, Avi Kivity wrote:
> On 06/09/2010 11:29 AM, Peter Lieven wrote:
> >Avi Kivity wrote:
> >>On 06/08/2010 04:44 PM, Peter Lieven wrote:
> >>>>-cpu host is good if you have identical machines and don't
> >>>>plan to add new ones.
> >>>
> >>>i will likely add new ones, but my plan would be to use qemu64
> >>>and then add all flags manually that
> >>>are common to all cpus in the pool.
> >>>would that be safe?
> >>
> >>Yes.
> >>
> >2 last questions:
> >
> >a) i remember that there (have been) are instructions that have a
> >high virtualization penalty.
> >are there flags that should better not be offered to a VM?
> 
> Not that I know of.
> 
rdtscp? I think it's always emulated.

--
                        Gleb.