On Fri, Sep 04, 2015 at 05:30:35PM +0200, Peter Zijlstra wrote:
> Should I place the virt_spin_lock() thing under CONFIG_PARAVIRT (maybe
> even _SPINLOCKS) such that only paravirt enabled kernels when ran on a
> hypervisor that does not support paravirt patching (HyperV, VMware,
> etc..) revert to the test-and-set?

Ah, CONFIG_HYPERVISOR_GUEST seems fitting, that's a prerequisite for all
the PARAVIRT options too.

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