static int enter_vmx_operation(struct kvm_vcpu *vcpu)
{
	struct vcpu_vmx *vmx = to_vmx(vcpu);
	int r;

	r = alloc_loaded_vmcs(&vmx->nested.vmcs02);
	if (r < 0)
		goto out_vmcs02;

	vmx->nested.cached_vmcs12 = kzalloc(VMCS12_SIZE, GFP_KERNEL_ACCOUNT);
	if (!vmx->nested.cached_vmcs12)
		goto out_cached_vmcs12;

	vmx->nested.cached_shadow_vmcs12 = kzalloc(VMCS12_SIZE, GFP_KERNEL_ACCOUNT);
	if (!vmx->nested.cached_shadow_vmcs12)
		goto out_cached_shadow_vmcs12;

	if (enable_shadow_vmcs && !alloc_shadow_vmcs(vcpu))
		goto out_shadow_vmcs;

	hrtimer_init(&vmx->nested.preemption_timer, CLOCK_MONOTONIC,
		     HRTIMER_MODE_REL_PINNED);
	vmx->nested.preemption_timer.function = vmx_preemption_timer_fn;

	vmx->nested.vpid02 = allocate_vpid();

	vmx->nested.vmcs02_initialized = false;
	vmx->nested.vmxon = true;

	if (pt_mode == PT_MODE_HOST_GUEST) {
		vmx->pt_desc.guest.ctl = 0;
		pt_update_intercept_for_msr(vmx);
	}

	return 0;

out_shadow_vmcs:
	kfree(vmx->nested.cached_shadow_vmcs12);

out_cached_shadow_vmcs12:
	kfree(vmx->nested.cached_vmcs12);

out_cached_vmcs12:
	free_loaded_vmcs(&vmx->nested.vmcs02);

out_vmcs02:
	return -ENOMEM;
}
Unknown