1811 int kvm_gfn_to_hva_cache_init(struct kvm *kvm, struct gfn_to_hva_cache *ghc,  in kvm_gfn_to_hva_cache_init()  argument
1821 	ghc->gpa = gpa;  in kvm_gfn_to_hva_cache_init()
1822 	ghc->generation = slots->generation;  in kvm_gfn_to_hva_cache_init()
1823 	ghc->len = len;  in kvm_gfn_to_hva_cache_init()
1824 	ghc->memslot = gfn_to_memslot(kvm, start_gfn);  in kvm_gfn_to_hva_cache_init()
1825 	ghc->hva = gfn_to_hva_many(ghc->memslot, start_gfn, NULL);  in kvm_gfn_to_hva_cache_init()
1826 	if (!kvm_is_error_hva(ghc->hva) && nr_pages_needed <= 1) {  in kvm_gfn_to_hva_cache_init()
1827 		ghc->hva += offset;  in kvm_gfn_to_hva_cache_init()
1834 			ghc->memslot = gfn_to_memslot(kvm, start_gfn);  in kvm_gfn_to_hva_cache_init()
1835 			ghc->hva = gfn_to_hva_many(ghc->memslot, start_gfn,  in kvm_gfn_to_hva_cache_init()
1837 			if (kvm_is_error_hva(ghc->hva))  in kvm_gfn_to_hva_cache_init()
1842 		ghc->memslot = NULL;  in kvm_gfn_to_hva_cache_init()
1848 int kvm_write_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,  in kvm_write_guest_cached()  argument
1854 	BUG_ON(len > ghc->len);  in kvm_write_guest_cached()
1856 	if (slots->generation != ghc->generation)  in kvm_write_guest_cached()
1857 		kvm_gfn_to_hva_cache_init(kvm, ghc, ghc->gpa, ghc->len);  in kvm_write_guest_cached()
1859 	if (unlikely(!ghc->memslot))  in kvm_write_guest_cached()
1860 		return kvm_write_guest(kvm, ghc->gpa, data, len);  in kvm_write_guest_cached()
1862 	if (kvm_is_error_hva(ghc->hva))  in kvm_write_guest_cached()
1865 	r = __copy_to_user((void __user *)ghc->hva, data, len);  in kvm_write_guest_cached()
1868 	mark_page_dirty_in_slot(ghc->memslot, ghc->gpa >> PAGE_SHIFT);  in kvm_write_guest_cached()
1874 int kvm_read_guest_cached(struct kvm *kvm, struct gfn_to_hva_cache *ghc,  in kvm_read_guest_cached()  argument
1880 	BUG_ON(len > ghc->len);  in kvm_read_guest_cached()
1882 	if (slots->generation != ghc->generation)  in kvm_read_guest_cached()
1883 		kvm_gfn_to_hva_cache_init(kvm, ghc, ghc->gpa, ghc->len);  in kvm_read_guest_cached()
1885 	if (unlikely(!ghc->memslot))  in kvm_read_guest_cached()
1886 		return kvm_read_guest(kvm, ghc->gpa, data, len);  in kvm_read_guest_cached()
1888 	if (kvm_is_error_hva(ghc->hva))  in kvm_read_guest_cached()
1891 	r = __copy_from_user(data, (void __user *)ghc->hva, len);  in kvm_read_guest_cached()