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KVM: Implement NotifyLongSpinWait HYPER-V hypercall

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Windows issues this hypercall after guest was spinning on a spinlock
for too many iterations.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Vadim Rozenfeld <vrozenfe@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Gleb Natapov 2010-01-17 15:51:24 +02:00 • committed by Marcelo Tosatti
parent 10388a0716
commit c25bc1638a
2 changed files with 10 additions and 1 deletions
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1
include/linux/kvm.h
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@ -499,6 +499,7 @@ struct kvm_ioeventfd {
#define KVM_CAP_PPC_SEGSTATE 43
#define KVM_CAP_HYPERV 44
#define KVM_CAP_HYPERV_VAPIC 45
#define KVM_CAP_HYPERV_SPIN 46
#ifdef KVM_CAP_IRQ_ROUTING