163 unsigned long __ref xen_chk_extra_mem(unsigned long pfn)  in xen_chk_extra_mem()  argument
168 		if (pfn >= xen_extra_mem[i].start_pfn &&  in xen_chk_extra_mem()
169 		    pfn < xen_extra_mem[i].start_pfn + xen_extra_mem[i].n_pfns)  in xen_chk_extra_mem()
173 	return IDENTITY_FRAME(pfn);  in xen_chk_extra_mem()
181 	unsigned long pfn, pfn_s, pfn_e;  in xen_inv_extra_mem()  local
189 		for (pfn = pfn_s; pfn < pfn_e; pfn++)  in xen_inv_extra_mem()
190 			set_phys_to_machine(pfn, INVALID_P2M_ENTRY);  in xen_inv_extra_mem()
256 	unsigned long pfn, end;  in xen_set_identity_and_release_chunk()  local
263 	for (pfn = start_pfn; pfn < end; pfn++) {  in xen_set_identity_and_release_chunk()
264 		unsigned long mfn = pfn_to_mfn(pfn);  in xen_set_identity_and_release_chunk()
267 		if (mfn == INVALID_P2M_ENTRY || mfn_to_pfn(mfn) != pfn)  in xen_set_identity_and_release_chunk()
271 		WARN(ret != 1, "Failed to release pfn %lx err=%d\n", pfn, ret);  in xen_set_identity_and_release_chunk()
275 			if (!__set_phys_to_machine(pfn, INVALID_P2M_ENTRY))  in xen_set_identity_and_release_chunk()
287 static void __init xen_update_mem_tables(unsigned long pfn, unsigned long mfn)  in xen_update_mem_tables()  argument
291 		.val = pfn  in xen_update_mem_tables()
295 	if (!set_phys_to_machine(pfn, mfn)) {  in xen_update_mem_tables()
297 		     pfn, mfn);  in xen_update_mem_tables()
304 		     mfn, pfn);  in xen_update_mem_tables()
309 	if (pfn >= PFN_UP(__pa(high_memory - 1)))  in xen_update_mem_tables()
312 	if (HYPERVISOR_update_va_mapping((unsigned long)__va(pfn << PAGE_SHIFT),  in xen_update_mem_tables()
315 		      mfn, pfn);  in xen_update_mem_tables()
392 	unsigned long pfn;  in xen_set_identity_and_remap_chunk()  local
436 	for (pfn = start_pfn; pfn <= max_pfn_mapped && pfn < end_pfn; pfn++)  in xen_set_identity_and_remap_chunk()
438 			(unsigned long)__va(pfn << PAGE_SHIFT),  in xen_set_identity_and_remap_chunk()
439 			mfn_pte(pfn, PAGE_KERNEL_IO), 0);  in xen_set_identity_and_remap_chunk()
503 	unsigned long mfn_save, mfn, pfn;  in xen_remap_memory()  local
517 		pfn = xen_remap_buf.target_pfn;  in xen_remap_memory()
520 			xen_update_mem_tables(pfn, mfn);  in xen_remap_memory()
522 			pfn++;  in xen_remap_memory()
524 		if (pfn_s == ~0UL || pfn == pfn_s) {  in xen_remap_memory()