From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> Swap the order of hardware_enable_all() and kvm_arch_init_vm() to accommodate Intel's TDX, which needs VMX to be enabled during VM init in order to make SEAMCALLs. This also provides consistent ordering between kvm_create_vm() and kvm_destroy_vm() with respect to calling kvm_arch_destroy_vm() and hardware_disable_all(). Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx> Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx> --- virt/kvm/kvm_main.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index d8e799eeef8d..8544e92db2da 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1065,7 +1065,7 @@ static struct kvm *kvm_create_vm(unsigned long type) struct kvm_memslots *slots = kvm_alloc_memslots(); if (!slots) - goto out_err_no_arch_destroy_vm; + goto out_err_no_disable; /* Generations must be different for each address space. */ slots->generation = i; rcu_assign_pointer(kvm->memslots[i], slots); @@ -1075,19 +1075,19 @@ static struct kvm *kvm_create_vm(unsigned long type) rcu_assign_pointer(kvm->buses[i], kzalloc(sizeof(struct kvm_io_bus), GFP_KERNEL_ACCOUNT)); if (!kvm->buses[i]) - goto out_err_no_arch_destroy_vm; + goto out_err_no_disable; } kvm->max_halt_poll_ns = halt_poll_ns; - r = kvm_arch_init_vm(kvm, type); - if (r) - goto out_err_no_arch_destroy_vm; - r = hardware_enable_all(); if (r) goto out_err_no_disable; + r = kvm_arch_init_vm(kvm, type); + if (r) + goto out_err_no_arch_destroy_vm; + #ifdef CONFIG_HAVE_KVM_IRQFD INIT_HLIST_HEAD(&kvm->irq_ack_notifier_list); #endif @@ -1115,10 +1115,10 @@ static struct kvm *kvm_create_vm(unsigned long type) mmu_notifier_unregister(&kvm->mmu_notifier, current->mm); #endif out_err_no_mmu_notifier: - hardware_disable_all(); -out_err_no_disable: kvm_arch_destroy_vm(kvm); out_err_no_arch_destroy_vm: + hardware_disable_all(); +out_err_no_disable: WARN_ON_ONCE(!refcount_dec_and_test(&kvm->users_count)); for (i = 0; i < KVM_NR_BUSES; i++) kfree(kvm_get_bus(kvm, i)); -- 2.25.1
