Re: KVM Management : Paused stauts

[jd <jdsw2002@yahoo.com>]

> "halted" actually means the vcpu is idle
> (executing a hlt instruction),
> not that the vm is halted.


Can u please elaborate a bit on this ? when does guest get in to executing 'hlt' Vs in to 'VM halt'

My understanding is that when guest executes shutdown sequence, eventually it will execute hlt.

When you give stop via the monitor/console, what happens ? (and on continue)

thanks
/Jd


--- On Sat, 10/4/08, Avi Kivity <avi@redhat.com> wrote:

> From: Avi Kivity <avi@redhat.com>
> Subject: Re: KVM Management : Paused stauts
> To: jdsw2002@yahoo.com
> Cc: "Anthony Liguori" <anthony@codemonkey.ws>, "KVM List" <kvm@vger.kernel.org>
> Date: Saturday, October 4, 2008, 5:46 AM
> jd wrote:
> > Hi
> >
> >    I do not see (halted) when I "stop"
> (pause) the vm. Tried on both KVM-70 and kvm-73.
> >   
> >   Is there a particular version it was introduced in?
> >
> > Thanks
> > /Jd
> >
> > (qemu) info cpus
> > info cpus
> > * CPU #0: pc=0x00000000c00faaca thread_id=18641
> > (qemu) stop
> > stop
> > (qemu) info cpus
> > info cpus
> > * CPU #0: pc=0x00000000c00faaca thread_id=18641
> > (qemu) cont
> > cont
> > (qemu) info cpus
> > info cpus
> > * CPU #0: pc=0x00000000c04224f4 thread_id=18641
> > (qemu) 
> >
> >   
> 
> "halted" actually means the vcpu is idle
> (executing a hlt instruction),
> not that the vm is halted.
> 
> -- 
> Do not meddle in the internals of kernels, for they are
> subtle and quick to panic.