Il 18/06/2014 18:43, Bandan Das ha scritto:
> mwait and monitor are currently handled as nop. Considering this behavior, they
> should still be handled correctly, i.e., check execution conditions and generate
> exceptions when required. mwait and monitor may also be executed in real-mode
Is this necessary ? They are NOPs and kvm prints that out (correctly so) to dmesg.
Implementing them correctly is a different thing, but adding extra checks for NOPs
just seems like adding extra cycles.
Raising the correct exception is a good thing, though. The guest is
going to busy wait anyway, it doesn't matter how fast it does that. :)
Paolo
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