1628 int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc,  in kvm_gfn_to_hva_cache_init()  argument
1638 	ghc->gpa = gpa;  in kvm_gfn_to_hva_cache_init()
1639 	ghc->generation = slots->generation;  in kvm_gfn_to_hva_cache_init()
1640 	ghc->len = len;  in kvm_gfn_to_hva_cache_init()
1641 	ghc->memslot = gfn_to_memslot(kvm, start_gfn);  in kvm_gfn_to_hva_cache_init()
1642 	ghc->hva = gfn_to_hva_many(ghc->memslot, start_gfn, NULL);  in kvm_gfn_to_hva_cache_init()
1643 	if (!kvm_is_error_hva(ghc->hva) && nr_pages_needed <= 1) {  in kvm_gfn_to_hva_cache_init()
1644 		ghc->hva += offset;  in kvm_gfn_to_hva_cache_init()
1651 			ghc->memslot = gfn_to_memslot(kvm, start_gfn);  in kvm_gfn_to_hva_cache_init()
1652 			ghc->hva = gfn_to_hva_many(ghc->memslot, start_gfn,  in kvm_gfn_to_hva_cache_init()
1654 			if (kvm_is_error_hva(ghc->hva))  in kvm_gfn_to_hva_cache_init()
1659 		ghc->memslot = NULL;  in kvm_gfn_to_hva_cache_init()
1665 int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,  in kvm_write_guest_cached()  argument
1671 	BUG_ON(len > ghc->len);  in kvm_write_guest_cached()
1673 	if (slots->generation != ghc->generation)  in kvm_write_guest_cached()
1674 		kvm_gfn_to_hva_cache_init(kvm, ghc, ghc->gpa, ghc->len);  in kvm_write_guest_cached()
1676 	if (unlikely(!ghc->memslot))  in kvm_write_guest_cached()
1677 		return kvm_write_guest(kvm, ghc->gpa, data, len);  in kvm_write_guest_cached()
1679 	if (kvm_is_error_hva(ghc->hva))  in kvm_write_guest_cached()
1682 	r = __copy_to_user((void __user *)ghc->hva, data, len);  in kvm_write_guest_cached()
1685 	mark_page_dirty_in_slot(kvm, ghc->memslot, ghc->gpa >> PAGE_SHIFT);  in kvm_write_guest_cached()
1691 int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,  in kvm_read_guest_cached()  argument
1697 	BUG_ON(len > ghc->len);  in kvm_read_guest_cached()
1699 	if (slots->generation != ghc->generation)  in kvm_read_guest_cached()
1700 		kvm_gfn_to_hva_cache_init(kvm, ghc, ghc->gpa, ghc->len);  in kvm_read_guest_cached()
1702 	if (unlikely(!ghc->memslot))  in kvm_read_guest_cached()
1703 		return kvm_read_guest(kvm, ghc->gpa, data, len);  in kvm_read_guest_cached()
1705 	if (kvm_is_error_hva(ghc->hva))  in kvm_read_guest_cached()
1708 	r = __copy_from_user(data, (void __user *)ghc->hva, len);  in kvm_read_guest_cached()