Anthony Liguori wrote:
>
> Then again, are we really positive that we have to move the APIC into 
> the kernel?  A lot of things will get much more complicated.

The following arguments are in favor:
- allow in-kernel paravirt drivers to interrupt the guest without going 
through qemu (which involves a signal and some complexity)
- same for guest SMP IPI
- reduced overhead for a much-loved hardware component (especially on 
Windows, where one regularly sees 100K apic updates a second)

The strength of these arguments increase as vmexit overhead decreases 
with improving hardware.

Of course, pushing such a piece of misery into the kernel where it can 
cause much pain should not be done lightly.

-- 
error compiling committee.c: too many arguments to function


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