1 /* 2 * Copyright (c) 2011 Mike Larkin <mlarkin@openbsd.org> 3 * 4 * Permission to use, copy, modify, and distribute this software for any 5 * purpose with or without fee is hereby granted, provided that the above 6 * copyright notice and this permission notice appear in all copies. 7 * 8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15 */ 16 17 /* amd64 hibernate support definitions */ 18 19 #define PAGE_MASK_2M (NBPD_L2 - 1) 20 #define PAGE_MASK_1G (NBPD_L3 - 1) 21 #define PAGE_MASK_512G (NBPD_L4 - 1) 22 23 #define PIGLET_PAGE_MASK ~((paddr_t)PAGE_MASK_2M) 24 25 /* 26 * PML4 table for resume 27 */ 28 #define HIBERNATE_PML4T (PAGE_SIZE * 5) 29 30 /* 31 * amd64 uses a PDPT to map the first 512GB phys mem plus one more 32 * to map any ranges of phys mem past 512GB (if needed) 33 */ 34 #define HIBERNATE_PDPT_LOW (PAGE_SIZE * 6) 35 #define HIBERNATE_PDPT_HI (PAGE_SIZE * 7) 36 37 /* 38 * amd64 uses one PD to map the first 1GB phys mem plus one more to map any 39 * other 1GB ranges within the first 512GB phys, plus one more to map any 40 * 1GB range in any subsequent 512GB range 41 */ 42 #define HIBERNATE_PD_LOW (PAGE_SIZE * 8) 43 #define HIBERNATE_PD_LOW2 (PAGE_SIZE * 9) 44 #define HIBERNATE_PD_HI (PAGE_SIZE * 10) 45 46 /* 47 * amd64 uses one PT to map the first 2MB phys mem plus one more to map any 48 * other 2MB range within the first 1GB, plus one more to map any 2MB range 49 * in any subsequent 512GB range. 50 */ 51 #define HIBERNATE_PT_LOW (PAGE_SIZE * 11) 52 #define HIBERNATE_PT_LOW2 (PAGE_SIZE * 12) 53 #define HIBERNATE_PT_HI (PAGE_SIZE * 13) 54 55 #define HIBERNATE_SELTABLE (PAGE_SIZE * 14) 56 57 /* 3 pages for stack */ 58 #define HIBERNATE_STACK_PAGE (PAGE_SIZE * 15) 59 60 #define HIBERNATE_INFLATE_PAGE (PAGE_SIZE * 18) 61 #define HIBERNATE_COPY_PAGE (PAGE_SIZE * 19) 62 /* HIBERNATE_HIBALLOC_PAGE must be the last stolen page (see machdep.c) */ 63 #define HIBERNATE_HIBALLOC_PAGE (PAGE_SIZE * 20) 64 65 /* Use 4MB hibernation chunks */ 66 #define HIBERNATE_CHUNK_SIZE 0x400000 67 68 #define HIBERNATE_CHUNK_TABLE_SIZE 0x100000 69 70 #define HIBERNATE_STACK_OFFSET 0x0F00 71