diff options
Diffstat (limited to 'hw/i386/smbios.c')
| -rw-r--r-- | hw/i386/smbios.c | 152 |
1 files changed, 91 insertions, 61 deletions
diff --git a/hw/i386/smbios.c b/hw/i386/smbios.c index 42635513b8..d2dba6c72e 100644 --- a/hw/i386/smbios.c +++ b/hw/i386/smbios.c @@ -47,6 +47,7 @@ struct smbios_table { static uint8_t *smbios_entries; static size_t smbios_entries_len; static int smbios_type4_count = 0; +static bool smbios_immutable; static struct { bool seen; @@ -54,6 +55,17 @@ static struct { Location loc; } first_opt[2]; +static struct { + const char *vendor, *version, *date; + bool have_major_minor; + uint8_t major, minor; +} type0; + +static struct { + const char *manufacturer, *product, *version, *serial, *sku, *family; + /* uuid is in qemu_uuid[] */ +} type1; + static QemuOptsList qemu_smbios_opts = { .name = "smbios", .head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head), @@ -152,13 +164,6 @@ static void smbios_validate_table(void) } } -uint8_t *smbios_get_table(size_t *length) -{ - smbios_validate_table(); - *length = smbios_entries_len; - return smbios_entries; -} - /* * To avoid unresolvable overlaps in data, don't allow both * tables and fields for the same smbios type. @@ -182,12 +187,10 @@ static void smbios_check_collision(int type, int entry) } } -void smbios_add_field(int type, int offset, const void *data, size_t len) +static void smbios_add_field(int type, int offset, const void *data, size_t len) { struct smbios_field *field; - smbios_check_collision(type, SMBIOS_FIELD_ENTRY); - if (!smbios_entries) { smbios_entries_len = sizeof(uint16_t); smbios_entries = g_malloc0(smbios_entries_len); @@ -207,82 +210,81 @@ void smbios_add_field(int type, int offset, const void *data, size_t len) cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1); } -static void smbios_build_type_0_fields(QemuOpts *opts) +static void smbios_build_type_0_fields(void) { - const char *val; - unsigned char major, minor; - - val = qemu_opt_get(opts, "vendor"); - if (val) { + if (type0.vendor) { smbios_add_field(0, offsetof(struct smbios_type_0, vendor_str), - val, strlen(val) + 1); + type0.vendor, strlen(type0.vendor) + 1); } - val = qemu_opt_get(opts, "version"); - if (val) { + if (type0.version) { smbios_add_field(0, offsetof(struct smbios_type_0, bios_version_str), - val, strlen(val) + 1); + type0.version, strlen(type0.version) + 1); } - val = qemu_opt_get(opts, "date"); - if (val) { + if (type0.date) { smbios_add_field(0, offsetof(struct smbios_type_0, bios_release_date_str), - val, strlen(val) + 1); + type0.date, strlen(type0.date) + 1); } - val = qemu_opt_get(opts, "release"); - if (val) { - if (sscanf(val, "%hhu.%hhu", &major, &minor) != 2) { - error_report("Invalid release"); - exit(1); - } + if (type0.have_major_minor) { smbios_add_field(0, offsetof(struct smbios_type_0, system_bios_major_release), - &major, 1); + &type0.major, 1); smbios_add_field(0, offsetof(struct smbios_type_0, system_bios_minor_release), - &minor, 1); + &type0.minor, 1); } } -static void smbios_build_type_1_fields(QemuOpts *opts) +static void smbios_build_type_1_fields(void) { - const char *val; - - val = qemu_opt_get(opts, "manufacturer"); - if (val) { + if (type1.manufacturer) { smbios_add_field(1, offsetof(struct smbios_type_1, manufacturer_str), - val, strlen(val) + 1); + type1.manufacturer, strlen(type1.manufacturer) + 1); } - val = qemu_opt_get(opts, "product"); - if (val) { + if (type1.product) { smbios_add_field(1, offsetof(struct smbios_type_1, product_name_str), - val, strlen(val) + 1); + type1.product, strlen(type1.product) + 1); } - val = qemu_opt_get(opts, "version"); - if (val) { + if (type1.version) { smbios_add_field(1, offsetof(struct smbios_type_1, version_str), - val, strlen(val) + 1); + type1.version, strlen(type1.version) + 1); } - val = qemu_opt_get(opts, "serial"); - if (val) { + if (type1.serial) { smbios_add_field(1, offsetof(struct smbios_type_1, serial_number_str), - val, strlen(val) + 1); - } - val = qemu_opt_get(opts, "uuid"); - if (val) { - if (qemu_uuid_parse(val, qemu_uuid) != 0) { - error_report("Invalid UUID"); - exit(1); - } + type1.serial, strlen(type1.serial) + 1); } - val = qemu_opt_get(opts, "sku"); - if (val) { + if (type1.sku) { smbios_add_field(1, offsetof(struct smbios_type_1, sku_number_str), - val, strlen(val) + 1); + type1.sku, strlen(type1.sku) + 1); } - val = qemu_opt_get(opts, "family"); - if (val) { + if (type1.family) { smbios_add_field(1, offsetof(struct smbios_type_1, family_str), - val, strlen(val) + 1); + type1.family, strlen(type1.family) + 1); + } + if (qemu_uuid_set) { + smbios_add_field(1, offsetof(struct smbios_type_1, uuid), + qemu_uuid, 16); + } +} + +uint8_t *smbios_get_table(size_t *length) +{ + if (!smbios_immutable) { + smbios_build_type_0_fields(); + smbios_build_type_1_fields(); + smbios_validate_table(); + smbios_immutable = true; + } + *length = smbios_entries_len; + return smbios_entries; +} + +static void save_opt(const char **dest, QemuOpts *opts, const char *name) +{ + const char *val = qemu_opt_get(opts, name); + + if (val) { + *dest = val; } } @@ -291,6 +293,7 @@ void smbios_entry_add(QemuOpts *opts) Error *local_err = NULL; const char *val; + assert(!smbios_immutable); val = qemu_opt_get(opts, "file"); if (val) { struct smbios_structure_header *header; @@ -341,6 +344,8 @@ void smbios_entry_add(QemuOpts *opts) if (val) { unsigned long type = strtoul(val, NULL, 0); + smbios_check_collision(type, SMBIOS_FIELD_ENTRY); + switch (type) { case 0: qemu_opts_validate(opts, qemu_smbios_type0_opts, &local_err); @@ -348,7 +353,18 @@ void smbios_entry_add(QemuOpts *opts) error_report("%s", error_get_pretty(local_err)); exit(1); } - smbios_build_type_0_fields(opts); + save_opt(&type0.vendor, opts, "vendor"); + save_opt(&type0.version, opts, "version"); + save_opt(&type0.date, opts, "date"); + + val = qemu_opt_get(opts, "release"); + if (val) { + if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) { + error_report("Invalid release"); + exit(1); + } + type0.have_major_minor = true; + } return; case 1: qemu_opts_validate(opts, qemu_smbios_type1_opts, &local_err); @@ -356,7 +372,21 @@ void smbios_entry_add(QemuOpts *opts) error_report("%s", error_get_pretty(local_err)); exit(1); } - smbios_build_type_1_fields(opts); + save_opt(&type1.manufacturer, opts, "manufacturer"); + save_opt(&type1.product, opts, "product"); + save_opt(&type1.version, opts, "version"); + save_opt(&type1.serial, opts, "serial"); + save_opt(&type1.sku, opts, "sku"); + save_opt(&type1.family, opts, "family"); + + val = qemu_opt_get(opts, "uuid"); + if (val) { + if (qemu_uuid_parse(val, qemu_uuid) != 0) { + error_report("Invalid UUID"); + exit(1); + } + qemu_uuid_set = true; + } return; default: error_report("Don't know how to build fields for SMBIOS type %ld", |