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smbios: Provide serial number 

If the system has a valid "serial#" environment variable set (which boards that
can find it out programatically set automatically), use that as input for the
serial number and UUID fields in the SMBIOS tables.

Signed-off-by: Alexander Graf <agraf@suse.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Alexander Graf 2016-08-19 01:23:31 +02:00
parent aba5e9194b
commit 6fb580d7b4
1 changed files with 5 additions and 0 deletions
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5
lib/smbios.c
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@ -112,11 +112,16 @@ static int smbios_write_type1(uintptr_t *current, int handle)
{ {
struct smbios_type1 *t = (struct smbios_type1 *)*current; struct smbios_type1 *t = (struct smbios_type1 *)*current;
int len = sizeof(struct smbios_type1); int len = sizeof(struct smbios_type1);
char *serial_str = getenv("serial#");
memset(t, 0, sizeof(struct smbios_type1)); memset(t, 0, sizeof(struct smbios_type1));
fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle); fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle);
t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER); t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME); t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);
if (serial_str) {
strncpy((char*)t->uuid, serial_str, sizeof(t->uuid));
t->serial_number = smbios_add_string(t->eos, serial_str);
}
len = t->length + smbios_string_table_len(t->eos); len = t->length + smbios_string_table_len(t->eos);
*current += len; *current += len;