88 lines
4.7 KiB
C
88 lines
4.7 KiB
C
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/*
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* SMBIOS Support
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*
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* Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
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* Copyright (C) 2013 Red Hat, Inc.
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*
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* Authors:
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* Alex Williamson <alex.williamson@hp.com>
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* Markus Armbruster <armbru@redhat.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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* Contributions after 2012-01-13 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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*/
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#ifndef QEMU_SMBIOS_BUILD_H
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#define QEMU_SMBIOS_BUILD_H
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bool smbios_skip_table(uint8_t type, bool required_table);
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extern uint8_t *smbios_tables;
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extern size_t smbios_tables_len;
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extern unsigned smbios_table_max;
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extern unsigned smbios_table_cnt;
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#define SMBIOS_BUILD_TABLE_PRE(tbl_type, tbl_handle, tbl_required) \
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struct smbios_type_##tbl_type *t; \
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size_t t_off; /* table offset into smbios_tables */ \
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int str_index = 0; \
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do { \
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/* should we skip building this table ? */ \
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if (smbios_skip_table(tbl_type, tbl_required)) { \
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return; \
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} \
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\
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/* use offset of table t within smbios_tables */ \
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/* (pointer must be updated after each realloc) */ \
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t_off = smbios_tables_len; \
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smbios_tables_len += sizeof(*t); \
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smbios_tables = g_realloc(smbios_tables, smbios_tables_len); \
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t = (struct smbios_type_##tbl_type *)(smbios_tables + t_off); \
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\
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t->header.type = tbl_type; \
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t->header.length = sizeof(*t); \
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t->header.handle = cpu_to_le16(tbl_handle); \
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} while (0)
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#define SMBIOS_TABLE_SET_STR(tbl_type, field, value) \
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do { \
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int len = (value != NULL) ? strlen(value) + 1 : 0; \
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if (len > 1) { \
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smbios_tables = g_realloc(smbios_tables, \
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smbios_tables_len + len); \
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memcpy(smbios_tables + smbios_tables_len, value, len); \
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smbios_tables_len += len; \
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/* update pointer post-realloc */ \
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t = (struct smbios_type_##tbl_type *)(smbios_tables + t_off); \
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t->field = ++str_index; \
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} else { \
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t->field = 0; \
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} \
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} while (0)
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#define SMBIOS_BUILD_TABLE_POST \
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do { \
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size_t term_cnt, t_size; \
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\
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/* add '\0' terminator (add two if no strings defined) */ \
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term_cnt = (str_index == 0) ? 2 : 1; \
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smbios_tables = g_realloc(smbios_tables, \
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smbios_tables_len + term_cnt); \
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memset(smbios_tables + smbios_tables_len, 0, term_cnt); \
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smbios_tables_len += term_cnt; \
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\
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/* update smbios max. element size */ \
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t_size = smbios_tables_len - t_off; \
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if (t_size > smbios_table_max) { \
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smbios_table_max = t_size; \
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} \
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\
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/* update smbios element count */ \
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smbios_table_cnt++; \
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} while (0)
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#endif /* QEMU_SMBIOS_BUILD_H */
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