On Tue, Mar 04, 2008 at 12:47:58PM +0200, Avi Kivity wrote:
> With paravirt clocksource, reboot and kexec are broken: the clock keeps
> updating after the reboot, and the new kernel will have a random memory
> location trampled occasionally.
>
> So we need to stop the clock on kexec (in the guest) and reboot (in the
> host). On the host side, this can be done either in the kernel, or in
> userspace via new ioctls.
>
> Joerg, I think you mentioned you were working on a vm-wide reset ioctl()? If
> so, that would be the place to stop the clock on reboot.
>
> Glauber, can you extend the interface to support stopping the clock? It
> needs to be done even outside kexec, for example if the the user decides to
> stop using your clock.
Yes, I am working on that ioctl(), but don't expect a patch this week
because I am busy with an other task temporarily.
Joerg
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