Dor Laor wrote:
ron minnich wrote:
Hi, I'm sorry, I've been stuck on other things (NFS RDMA anyone?) and
missed part of this discussion.
Is it really the case that operations on virtio devices will involve
outl/inl etc.?
What's the problem with them?
Except for the kick event it's not performance critical and the
difference between pio vmexit
and hypercall exit is very small.
If you're a nutty guy who's interesting in creating the most absolute
minimal VMM to run exotic paravirtual guests on massive clusters, then
requiring PIO implies that you have to have an instruction decoder which
is goes against the earlier goal ;-)
Regards,
Anthony Liguori
I don't know about problems in other architectures, maybe mmio is better?
Dor.
Apologies in advance for my failure to pay attention.
thanks
ron
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