On 02/20/2014 02:32 PM, Raghavendra K T wrote:
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().
I saw that in the arch/x86/kernel/kvm.c file. So I think I can use the
returned value of kvm_para_available() to decide if it is running in a
KVM guest. However, I am not so sure of what to use in xen.
-Longman
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