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