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Export processor socket information. New environment variables are:

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smbios.socket.enabled:		number of enabled sockets
smbios.socket.populated:	number of populated sockets
This commit is contained in:
Jung-uk Kim 2005-10-18 20:03:31 +00:00
parent a3ced67adf
commit 529bc4bf80
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=151452
1 changed files with 32 additions and 0 deletions
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32
sys/boot/i386/libi386/smbios.c
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@ -54,6 +54,9 @@ __FBSDID("$FreeBSD$");
#define SMBIOS_SIG "_SM_"
#define SMBIOS_DMI_SIG "_DMI_"
static u_int8_t smbios_enabled_sockets = 0;
static u_int8_t smbios_populated_sockets = 0;
static u_int8_t *smbios_parse_table(const u_int8_t *dmi);
static void smbios_setenv(const char *env, const u_int8_t *dmi,
const int offset);
@ -66,6 +69,7 @@ smbios_detect(void)
u_int8_t *smbios, *dmi, *addr;
u_int16_t i, length, count;
u_int32_t paddr;
char buf[4];
/* locate and validate the SMBIOS */
smbios = smbios_sigsearch(PTOV(SMBIOS_START), SMBIOS_LENGTH);
@ -79,6 +83,10 @@ smbios_detect(void)
for (dmi = addr = PTOV(paddr), i = 0;
dmi - addr < length && i < count; i++)
dmi = smbios_parse_table(dmi);
sprintf(buf, "%d", smbios_enabled_sockets);
setenv("smbios.socket.enabled", buf, 1);
sprintf(buf, "%d", smbios_populated_sockets);
setenv("smbios.socket.populated", buf, 1);
}
static u_int8_t *
@ -110,6 +118,30 @@ smbios_parse_table(const u_int8_t *dmi)
smbios_setenv("smbios.chassis.version", dmi, 0x06);
break;
case 4: /* Type 4: Processor Information */
/*
* Offset 18h: Processor Status
*
* Bit 7 Reserved, must be 0
* Bit 6 CPU Socket Populated
* 1 - CPU Socket Populated
* 0 - CPU Socket Unpopulated
* Bit 5:3 Reserved, must be zero
* Bit 2:0 CPU Status
* 0h - Unknown
* 1h - CPU Enabled
* 2h - CPU Disabled by User via BIOS Setup
* 3h - CPU Disabled by BIOS (POST Error)
* 4h - CPU is Idle, waiting to be enabled
* 5-6h - Reserved
* 7h - Other
*/
if ((dmi[0x18] & 0x07) == 1)
smbios_enabled_sockets++;
if (dmi[0x18] & 0x40)
smbios_populated_sockets++;
break;
default: /* skip other types */
break;
}