diff options
| author | Marcelo Tosatti <mtosatti@redhat.com> | 2009-06-23 15:05:14 -0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2009-06-24 12:03:13 +0300 |
| commit | 5f398a98646bd9289c86922c9f81801eca36fca6 (patch) | |
| tree | d60b048434e92b4dfbc2ec565baf76a7fc864511 /virt | |
| parent | cd107af3ed75dd57c2587fe28db9ccb8bb797afd (diff) | |
KVM: x86: missing locking in PIT/IRQCHIP/SET_BSP_CPU ioctl paths
Correct missing locking in a few places in x86's vm_ioctl handling path.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/kvm_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index ff2b65ff1a58..7f5936786857 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2271,10 +2271,12 @@ static long kvm_vm_ioctl(struct file *filp, #ifdef CONFIG_KVM_APIC_ARCHITECTURE case KVM_SET_BOOT_CPU_ID: r = 0; + mutex_lock(&kvm->lock); if (atomic_read(&kvm->online_vcpus) != 0) r = -EBUSY; else kvm->bsp_vcpu_id = arg; + mutex_unlock(&kvm->lock); break; #endif default: |