Il 04/06/2014 16:44, Alexander Graf ha scritto:
Obviously, if you really like the current behavior better you can
always reject whatever patch I'll come up with, but I'd like to at
least try and see what it would look like :)
I think it's perfectly fine to leave mwait always implemented as NOP -
it's valid behavior.
As for the CPUID exposure, that should be a pure QEMU thing. If
overriding CPUID bits the kernel mask tells us doesn't work today, we
should just make it possible :).
That should be the purpose of KVM_GET_EMULATED_CPUID, so MWAIT could be
added in __do_cpuid_ent_emulated. However, the corresponding QEMU
patches were never included. Borislav, can you refresh them?
Paolo
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