Avi Kivity wrote:
Anthony Liguori wrote:
For KVM, it should be okay as well. But we can replace two CR4 accesses
with just one hypercall.
I was thinking the same thing :-)
I was actually thinking about adding a hypercall to set/clear a bit in a
control register. The thought here is that it would be useful not just
for the global bit but also for CR0.TS although we would need another
paravirt_op hook for stts.
Are global tlb flushes frequent enough to warrant optimization?
I don't think so, so I'm going to remove this from the series. I'm
adding another an MMU batching patch which should be enough measurable
performance advantage to warrant the series.
Regards,
Anthony Liguori
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