projects / qemu.git / blame
| Commit | Line | Data |
|---|---|---|
| 0517cc98 CM |
1 | /* |
| 2 | * SMBIOS Support | |
| 3 | * | |
| 4 | * Copyright (C) 2009 Hewlett-Packard Development Company, L.P. | |
| 5 | * Copyright (C) 2013 Red Hat, Inc. | |
| 6 | * | |
| 7 | * Authors: | |
| 8 | * Alex Williamson <[email protected]> | |
| 9 | * Markus Armbruster <[email protected]> | |
| 10 | * | |
| 11 | * This work is licensed under the terms of the GNU GPL, version 2. See | |
| 12 | * the COPYING file in the top-level directory. | |
| 13 | * | |
| 14 | * Contributions after 2012-01-13 are licensed under the terms of the | |
| 15 | * GNU GPL, version 2 or (at your option) any later version. | |
| 16 | */ | |
| 17 | ||
| 18 | #ifndef QEMU_SMBIOS_BUILD_H | |
| 19 | #define QEMU_SMBIOS_BUILD_H | |
| 20 | ||
| 21 | bool smbios_skip_table(uint8_t type, bool required_table); | |
| 22 | ||
| 23 | extern uint8_t *smbios_tables; | |
| 24 | extern size_t smbios_tables_len; | |
| 25 | extern unsigned smbios_table_max; | |
| 26 | extern unsigned smbios_table_cnt; | |
| 27 | ||
| 28 | #define SMBIOS_BUILD_TABLE_PRE(tbl_type, tbl_handle, tbl_required) \ | |
| 29 | struct smbios_type_##tbl_type *t; \ | |
| 30 | size_t t_off; /* table offset into smbios_tables */ \ | |
| 31 | int str_index = 0; \ | |
| 32 | do { \ | |
| 33 | /* should we skip building this table ? */ \ | |
| 34 | if (smbios_skip_table(tbl_type, tbl_required)) { \ | |
| 35 | return; \ | |
| 36 | } \ | |
| 37 | \ | |
| 38 | /* use offset of table t within smbios_tables */ \ | |
| 39 | /* (pointer must be updated after each realloc) */ \ | |
| 40 | t_off = smbios_tables_len; \ | |
| 41 | smbios_tables_len += sizeof(*t); \ | |
| 42 | smbios_tables = g_realloc(smbios_tables, smbios_tables_len); \ | |
| 43 | t = (struct smbios_type_##tbl_type *)(smbios_tables + t_off); \ | |
| 44 | \ | |
| 45 | t->header.type = tbl_type; \ | |
| 46 | t->header.length = sizeof(*t); \ | |
| 47 | t->header.handle = cpu_to_le16(tbl_handle); \ | |
| 48 | } while (0) | |
| 49 | ||
| 50 | #define SMBIOS_TABLE_SET_STR(tbl_type, field, value) \ | |
| 51 | do { \ | |
| 52 | int len = (value != NULL) ? strlen(value) + 1 : 0; \ | |
| 53 | if (len > 1) { \ | |
| 54 | smbios_tables = g_realloc(smbios_tables, \ | |
| 55 | smbios_tables_len + len); \ | |
| 56 | memcpy(smbios_tables + smbios_tables_len, value, len); \ | |
| 57 | smbios_tables_len += len; \ | |
| 58 | /* update pointer post-realloc */ \ | |
| 59 | t = (struct smbios_type_##tbl_type *)(smbios_tables + t_off); \ | |
| 60 | t->field = ++str_index; \ | |
| 61 | } else { \ | |
| 62 | t->field = 0; \ | |
| 63 | } \ | |
| 64 | } while (0) | |
| 65 | ||
| 66 | #define SMBIOS_BUILD_TABLE_POST \ | |
| 67 | do { \ | |
| 68 | size_t term_cnt, t_size; \ | |
| 69 | \ | |
| 70 | /* add '\0' terminator (add two if no strings defined) */ \ | |
| 71 | term_cnt = (str_index == 0) ? 2 : 1; \ | |
| 72 | smbios_tables = g_realloc(smbios_tables, \ | |
| 73 | smbios_tables_len + term_cnt); \ | |
| 74 | memset(smbios_tables + smbios_tables_len, 0, term_cnt); \ | |
| 75 | smbios_tables_len += term_cnt; \ | |
| 76 | \ | |
| 77 | /* update smbios max. element size */ \ | |
| 78 | t_size = smbios_tables_len - t_off; \ | |
| 79 | if (t_size > smbios_table_max) { \ | |
| 80 | smbios_table_max = t_size; \ | |
| 81 | } \ | |
| 82 | \ | |
| 83 | /* update smbios element count */ \ | |
| 84 | smbios_table_cnt++; \ | |
| 85 | } while (0) | |
| 86 | ||
| 87 | #endif /* QEMU_SMBIOS_BUILD_H */ |