Re: [PATCH v4 0/3] qspinlock: Introducing a 4-byte queue spinlock

[Raghavendra K T]

On 02/20/2014 11:24 PM, Waiman Long wrote:

> Now the key is how to detect if a kernel is really running in a PV
> environment. I need to ask some virtualization experts on that.

For kvm you could just follow,
kvm_spinlock_init_jump() and KVM_FEATURE_* encoding in cpuid
part __do_cpuid_ent().

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