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Commit 133de902 authored by Avi Kivity's avatar Avi Kivity Committed by Linus Torvalds
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[PATCH] KVM: Add a global list of all virtual machines 



This will allow us to iterate over all vcpus and see which cpus they are
running on.

[akpm@osdl.org: use standard (ugly) initialisers]
Signed-off-by: default avatarAvi Kivity <avi@qumranet.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 47e627bc

drivers/kvm/kvm.h

+1 −0
Original line number Diff line number Diff line
@@ -304,6 +304,7 @@ struct kvm { 
	int memory_config_version;

	int busy;

	unsigned long rmap_overflow;

	struct list_head vm_list;

};



struct kvm_stat {

drivers/kvm/kvm_main.c

+10 −1
Original line number Diff line number Diff line
@@ -41,6 +41,9 @@ 
MODULE_AUTHOR("Qumranet");

MODULE_LICENSE("GPL");



static DEFINE_SPINLOCK(kvm_lock);

static LIST_HEAD(vm_list);



struct kvm_arch_ops *kvm_arch_ops;

struct kvm_stat kvm_stat;

EXPORT_SYMBOL_GPL(kvm_stat);
@@ -230,9 +233,13 @@ static int kvm_dev_open(struct inode *inode, struct file *filp) 
		struct kvm_vcpu *vcpu = &kvm->vcpus[i];



		mutex_init(&vcpu->mutex);

		vcpu->cpu = -1;

		vcpu->kvm = kvm;

		vcpu->mmu.root_hpa = INVALID_PAGE;

		INIT_LIST_HEAD(&vcpu->free_pages);

		spin_lock(&kvm_lock);

		list_add(&kvm->vm_list, &vm_list);

		spin_unlock(&kvm_lock);

	}

	filp->private_data = kvm;

	return 0;
@@ -292,6 +299,9 @@ static int kvm_dev_release(struct inode *inode, struct file *filp) 
{

	struct kvm *kvm = filp->private_data;



	spin_lock(&kvm_lock);

	list_del(&kvm->vm_list);

	spin_unlock(&kvm_lock);

	kvm_free_vcpus(kvm);

	kvm_free_physmem(kvm);

	kfree(kvm);
@@ -546,7 +556,6 @@ static int kvm_dev_ioctl_create_vcpu(struct kvm *kvm, int n) 
					   FX_IMAGE_ALIGN);

	vcpu->guest_fx_image = vcpu->host_fx_image + FX_IMAGE_SIZE;



	vcpu->cpu = -1;  /* First load will set up TR */

	r = kvm_arch_ops->vcpu_create(vcpu);

	if (r < 0)

		goto out_free_vcpus;