kvm/mmu/mmu.c

3841 		if (WARN_ON_ONCE(!mmu->pml4_root)) {
3845 		mmu->pml4_root[0] = __pa(mmu->pae_root) | pm_mask;
3852 			mmu->pml5_root[0] = __pa(mmu->pml4_root) | pm_mask;
3882 		mmu->root.hpa = __pa(mmu->pml4_root);
3899 	u64 *pml4_root = NULL;
3920 	if (mmu->pae_root && mmu->pml4_root && (!need_pml5 || mmu->pml5_root))
3927 	if (WARN_ON_ONCE(!tdp_enabled || mmu->pae_root || mmu->pml4_root ||
3940 	pml4_root = (void *)get_zeroed_page(GFP_KERNEL_ACCOUNT);
3941 	if (!pml4_root)
3952 	mmu->pml4_root = pml4_root;
3959 	free_page((unsigned long)pml4_root);
6118 	free_page((unsigned long)mmu->pml4_root);