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Viewing changes to hw/smbios/smbios_build.h

  • Committer: Phil Dennis-Jordan
  • Author(s): Michael Tokarev
  • Date: 2017-05-23 06:58:03 UTC
  • Revision ID: phil@philjordan.eu-20170523065803-3subwvf3y8kzkjry
Tags: upstream-2.8+dfsg
Import upstream version 2.8+dfsg

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hw/smbios/smbios_build.h
 
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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 */