Jes Sorensen wrote:
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.
Hi Avi,
I had a look at this and reworked the locking some, so we don't hold
the slots_lock when entering the guest.
How does this look? Xiantao any thoughts of whether it's unsafe to call
kvm_vcpu_post_transition without holding that semaphore? I believe it
should be fine.
I am still seeing issues where the host can get a lock timeout when
running large guests, but the situation seems to be better with this
patch applied.
It looks fine, though I'm hardly qualified to review ia64 code.
--
Do not meddle in the internals of kernels, for they are subtle and quick to panic.
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