Re: switching from KVM guest to the host .... TLBs not present?

Avi Kivity wrote:
> Applied, but I note that entering the guest with any lock held is 
> problematic, as the guest may spend an arbitrary amount of time in guest 
> mode.  Really, entering the guest is almost exactly like exiting to 
> userspace.

Thanks Avi,

I did wonder about this as I noticed x86_64 doesn't hold the lock while
entering a guest. I'll have a look - seems like it could be the reason
why I get hit by lockdep timeouts when running larger guests on ia64.

Cheers,
Jes