From 39c3b86e5c193e09f69f0e99c93600a4999ffc60 Mon Sep 17 00:00:00 2001 From: Avi Kivity Date: Thu, 7 Jun 2007 19:11:53 +0300 Subject: KVM: Keep an upper bound of initialized vcpus That way, we don't need to loop for KVM_MAX_VCPUS for a single vcpu vm. Signed-off-by: Avi Kivity --- drivers/kvm/kvm_main.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers/kvm/kvm_main.c') diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 55641696254..4e1a017f3db 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -2391,6 +2391,11 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, int n) if (r < 0) goto out_free_vcpus; + spin_lock(&kvm_lock); + if (n >= kvm->nvcpus) + kvm->nvcpus = n + 1; + spin_unlock(&kvm_lock); + return r; out_free_vcpus: -- cgit v1.2.3