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| author | Avi Kivity <avi@qumranet.com> | 2007-02-12 00:54:44 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-12 09:48:40 -0800 |
| commit | 133de9021d2988f3fbdad84c2d26484c7a757526 (patch) | |
| tree | dc56020026f28b91d2304aa355c8b6cf859a7223 /drivers/kvm/kvm_main.c | |
| parent | 47e627bc8c9a70392d2049e6af5bd55fae61fe53 (diff) | |
| download | lwn-133de9021d2988f3fbdad84c2d26484c7a757526.tar.gz lwn-133de9021d2988f3fbdad84c2d26484c7a757526.zip | |
[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: Avi Kivity <avi@qumranet.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/kvm/kvm_main.c')
| -rw-r--r-- | drivers/kvm/kvm_main.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index 9b79d3451f6f..a6cd1c1fe29a 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -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; |