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Merge branch 'kvm-updates/3.0' of git://git.kernel.org/pub/scm/virt/kvm/kvm

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* 'kvm-updates/3.0' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: Initialize kvm before registering the mmu notifier
  KVM: x86: use proper port value when checking io instruction permission
  KVM: add missing void __user * cast to access_ok() call
This commit is contained in:
Linus Torvalds
2011-06-07 19:06:28 -07:00
parent 22b174f8b7 74b5c5bfff
commit 58a9a36b54
2 changed files with 56 additions and 41 deletions
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15
virt/kvm/kvm_main.c
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@@ -467,12 +467,8 @@ static struct kvm *kvm_create_vm(void)
if (!kvm->buses[i])
goto out_err;
}
spin_lock_init(&kvm->mmu_lock);
r = kvm_init_mmu_notifier(kvm);
if (r)
goto out_err;
kvm->mm = current->mm;
atomic_inc(&kvm->mm->mm_count);
kvm_eventfd_init(kvm);
@@ -480,6 +476,11 @@ static struct kvm *kvm_create_vm(void)
mutex_init(&kvm->irq_lock);
mutex_init(&kvm->slots_lock);
atomic_set(&kvm->users_count, 1);
r = kvm_init_mmu_notifier(kvm);
if (r)
goto out_err;
raw_spin_lock(&kvm_lock);
list_add(&kvm->vm_list, &vm_list);
raw_spin_unlock(&kvm_lock);
@@ -651,7 +652,9 @@ int __kvm_set_memory_region(struct kvm *kvm,
/* We can read the guest memory with __xxx_user() later on. */
if (user_alloc &&
((mem->userspace_addr & (PAGE_SIZE - 1)) ||
!access_ok(VERIFY_WRITE, mem->userspace_addr, mem->memory_size)))
!access_ok(VERIFY_WRITE,
(void __user *)(unsigned long)mem->userspace_addr,
mem->memory_size)))
goto out;
if (mem->slot >= KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS)
goto out;