95 				     unsigned long n_pfns)  in xen_add_extra_mem()  argument
105 		if (xen_extra_mem[i].n_pfns == 0) {  in xen_add_extra_mem()
107 			xen_extra_mem[i].n_pfns = n_pfns;  in xen_add_extra_mem()
111 		if (xen_extra_mem[i].start_pfn + xen_extra_mem[i].n_pfns ==  in xen_add_extra_mem()
113 			xen_extra_mem[i].n_pfns += n_pfns;  in xen_add_extra_mem()
120 	memblock_reserve(PFN_PHYS(start_pfn), PFN_PHYS(n_pfns));  in xen_add_extra_mem()
124 				     unsigned long n_pfns)  in xen_del_extra_mem()  argument
131 		size_r = xen_extra_mem[i].n_pfns;  in xen_del_extra_mem()
135 			BUG_ON(n_pfns > size_r);  in xen_del_extra_mem()
136 			xen_extra_mem[i].start_pfn += n_pfns;  in xen_del_extra_mem()
137 			xen_extra_mem[i].n_pfns -= n_pfns;  in xen_del_extra_mem()
141 		if (start_r + size_r == start_pfn + n_pfns) {  in xen_del_extra_mem()
142 			BUG_ON(n_pfns > size_r);  in xen_del_extra_mem()
143 			xen_extra_mem[i].n_pfns -= n_pfns;  in xen_del_extra_mem()
148 			BUG_ON(start_pfn + n_pfns > start_r + size_r);  in xen_del_extra_mem()
149 			xen_extra_mem[i].n_pfns = start_pfn - start_r;  in xen_del_extra_mem()
151 			xen_add_extra_mem(start_pfn + n_pfns, start_r + size_r -  in xen_del_extra_mem()
152 					  (start_pfn + n_pfns));  in xen_del_extra_mem()
156 	memblock_free(PFN_PHYS(start_pfn), PFN_PHYS(n_pfns));  in xen_del_extra_mem()
170 		    pfn < xen_extra_mem[i].start_pfn + xen_extra_mem[i].n_pfns)  in xen_chk_extra_mem()
186 		if (!xen_extra_mem[i].n_pfns)  in xen_inv_extra_mem()
189 		pfn_e = pfn_s + xen_extra_mem[i].n_pfns;  in xen_inv_extra_mem()
730 	unsigned long max_pfn, pfn_s, n_pfns;  in xen_memory_setup()  local
823 				n_pfns = PFN_DOWN(addr + chunk_size) - pfn_s;  in xen_memory_setup()
824 				extra_pages -= n_pfns;  in xen_memory_setup()
825 				xen_add_extra_mem(pfn_s, n_pfns);  in xen_memory_setup()
826 				xen_max_p2m_pfn = pfn_s + n_pfns;  in xen_memory_setup()