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Index: sys/boot/i386/libi386/libi386.h
===================================================================
--- sys/boot/i386/libi386/libi386.h
+++ sys/boot/i386/libi386/libi386.h
@@ -114,6 +114,8 @@
void biosacpi_detect(void);
void smbios_detect(void);
+int smbios_match(const char* bios_vendor, const char* maker,
+ const char* product);
int i386_autoload(void);
Index: sys/boot/i386/libi386/smbios.c
===================================================================
--- sys/boot/i386/libi386/smbios.c
+++ sys/boot/i386/libi386/smbios.c
@@ -64,10 +64,24 @@
#define SMBIOS_GETLEN(base) SMBIOS_GET8(base, 0x01)
#define SMBIOS_GETSTR(base) ((base) + SMBIOS_GETLEN(base))
-static uint32_t smbios_enabled_memory = 0;
-static uint32_t smbios_old_enabled_memory = 0;
-static uint8_t smbios_enabled_sockets = 0;
-static uint8_t smbios_populated_sockets = 0;
+struct smbios_attr {
+ int probed;
+ caddr_t addr;
+ size_t length;
+ size_t count;
+ int major;
+ int minor;
+ int ver;
+ const char* bios_vendor;
+ const char* maker;
+ const char* product;
+ uint32_t enabled_memory;
+ uint32_t old_enabled_memory;
+ uint8_t enabled_sockets;
+ uint8_t populated_sockets;
+};
+
+static struct smbios_attr smbios;
static uint8_t
smbios_checksum(const caddr_t addr, const uint8_t len)
@@ -95,8 +109,8 @@
return (NULL);
}
-static void
-smbios_setenv(const char *name, caddr_t addr, const int offset)
+static const char*
+smbios_getstring(caddr_t addr, const int offset)
{
caddr_t cp;
int i, idx;
@@ -106,8 +120,19 @@
cp = SMBIOS_GETSTR(addr);
for (i = 1; i < idx; i++)
cp += strlen(cp) + 1;
- setenv(name, cp, 1);
+ return cp;
}
+ return (NULL);
+}
+
+static void
+smbios_setenv(const char *name, caddr_t addr, const int offset)
+{
+ const char* val;
+
+ val = smbios_getstring(addr, offset);
+ if (val != NULL)
+ setenv(name, val, 1);
}
#ifdef SMBIOS_SERIAL_NUMBERS
@@ -187,7 +212,7 @@
#endif
static caddr_t
-smbios_parse_table(const caddr_t addr, const int ver)
+smbios_parse_table(const caddr_t addr)
{
caddr_t cp;
int proc, size, osize, type;
@@ -206,7 +231,7 @@
smbios_setenv("smbios.system.version", addr, 0x06);
#ifdef SMBIOS_SERIAL_NUMBERS
smbios_setenv("smbios.system.serial", addr, 0x07);
- smbios_setuuid("smbios.system.uuid", addr + 0x08, ver);
+ smbios_setuuid("smbios.system.uuid", addr + 0x08, smbios.ver);
#endif
break;
@@ -248,9 +273,9 @@
*/
proc = SMBIOS_GET8(addr, 0x18);
if ((proc & 0x07) == 1)
- smbios_enabled_sockets++;
+ smbios.enabled_sockets++;
if ((proc & 0x40) != 0)
- smbios_populated_sockets++;
+ smbios.populated_sockets++;
break;
case 6: /* 3.3.7 Memory Module Information (Type 6, Obsolete) */
@@ -268,7 +293,7 @@
*/
osize = SMBIOS_GET8(addr, 0x0a) & 0x7f;
if (osize > 0 && osize < 22)
- smbios_old_enabled_memory += 1 << (osize + 10);
+ smbios.old_enabled_memory += 1 << (osize + 10);
break;
case 17: /* 3.3.18 Memory Device (Type 17) */
@@ -282,7 +307,7 @@
*/
size = SMBIOS_GET16(addr, 0x0c);
if (size != 0 && size != 0xffff)
- smbios_enabled_memory += (size & 0x8000) != 0 ?
+ smbios.enabled_memory += (size & 0x8000) != 0 ?
(size & 0x7fff) : (size << 10);
break;
@@ -298,54 +323,118 @@
return (cp + 2);
}
+static void
+smbios_probe(void)
+{
+ caddr_t saddr, info;
+ u_int32_t paddr;
+
+ if (smbios.probed)
+ return;
+ smbios.probed = 1;
+
+ /* Search signatures and validate checksums. */
+ saddr = smbios_sigsearch(PTOV(SMBIOS_START), SMBIOS_LENGTH);
+ if (saddr == NULL)
+ return;
+
+ smbios.length = SMBIOS_GET16(saddr, 0x16); /* Structure Table Length */
+ paddr = SMBIOS_GET32(saddr, 0x18); /* Structure Table Address */
+ smbios.count = SMBIOS_GET16(saddr, 0x1c); /* No of SMBIOS Structures */
+ smbios.ver = SMBIOS_GET8(saddr, 0x1e); /* SMBIOS BCD Revision */
+
+ if (smbios.ver != 0) {
+ smbios.major = smbios.ver >> 4;
+ smbios.minor = smbios.ver & 0x0f;
+ if (smbios.major > 9 || smbios.minor > 9)
+ smbios.ver = 0;
+ }
+ if (smbios.ver == 0) {
+ smbios.major = SMBIOS_GET8(saddr, 0x06);/* SMBIOS Major Version */
+ smbios.minor = SMBIOS_GET8(saddr, 0x07);/* SMBIOS Minor Version */
+ }
+ smbios.ver = (smbios.major << 8) | smbios.minor;
+ smbios.addr = PTOV(paddr);
+
+ /* Get system information from SMBIOS */
+ info = smbios_find_struct(0x00);
+ if (info != NULL) {
+ smbios.bios_vendor = smbios_getstring(info, 0x04);
+ }
+ info = smbios_find_struct(0x01);
+ if (info != NULL) {
+ smbios.maker = smbios_getstring(info, 0x04);
+ smbios.product = smbios_getstring(info, 0x05);
+ }
+}
+
+static caddr_t
+smbios_find_struct(int type)
+{
+ caddr_t dmi;
+ int i;
+
+ if (smbios.addr == NULL)
+ return (NULL);
+
+ for (dmi = smbios.addr, i = 0;
+ dmi < smbios.addr + smbios.length && i < smbios.count; i++) {
+ if (SMBIOS_GET8(dmi, 0) == type)
+ return dmi;
+ /* Find structure terminator. */
+ dmi = SMBIOS_GETSTR(dmi);
+ while (SMBIOS_GET16(dmi, 0) != 0)
+ dmi++;
+ dmi += 2;
+ }
+
+ return (NULL);
+}
+
void
smbios_detect(void)
{
char buf[16];
- caddr_t addr, dmi, smbios;
- size_t count, length;
- uint32_t paddr;
- int i, major, minor, ver;
+ caddr_t dmi;
+ int i;
- /* Search signatures and validate checksums. */
- smbios = smbios_sigsearch(PTOV(SMBIOS_START), SMBIOS_LENGTH);
- if (smbios == NULL)
+ smbios_probe();
+ if (smbios.addr == NULL)
return;
- length = SMBIOS_GET16(smbios, 0x16); /* Structure Table Length */
- paddr = SMBIOS_GET32(smbios, 0x18); /* Structure Table Address */
- count = SMBIOS_GET16(smbios, 0x1c); /* No of SMBIOS Structures */
- ver = SMBIOS_GET8(smbios, 0x1e); /* SMBIOS BCD Revision */
-
- if (ver != 0) {
- major = ver >> 4;
- minor = ver & 0x0f;
- if (major > 9 || minor > 9)
- ver = 0;
- }
- if (ver == 0) {
- major = SMBIOS_GET8(smbios, 0x06); /* SMBIOS Major Version */
- minor = SMBIOS_GET8(smbios, 0x07); /* SMBIOS Minor Version */
- }
- ver = (major << 8) | minor;
-
- addr = PTOV(paddr);
- for (dmi = addr, i = 0; dmi < addr + length && i < count; i++)
- dmi = smbios_parse_table(dmi, ver);
+ for (dmi = smbios.addr, i = 0;
+ dmi < smbios.addr + smbios.length && i < smbios.count; i++)
+ dmi = smbios_parse_table(dmi);
- sprintf(buf, "%d.%d", major, minor);
+ sprintf(buf, "%d.%d", smbios.major, smbios.minor);
setenv("smbios.version", buf, 1);
- if (smbios_enabled_memory > 0 || smbios_old_enabled_memory > 0) {
- sprintf(buf, "%u", smbios_enabled_memory > 0 ?
- smbios_enabled_memory : smbios_old_enabled_memory);
+ if (smbios.enabled_memory > 0 || smbios.old_enabled_memory > 0) {
+ sprintf(buf, "%u", smbios.enabled_memory > 0 ?
+ smbios.enabled_memory : smbios.old_enabled_memory);
setenv("smbios.memory.enabled", buf, 1);
}
- if (smbios_enabled_sockets > 0) {
- sprintf(buf, "%u", smbios_enabled_sockets);
+ if (smbios.enabled_sockets > 0) {
+ sprintf(buf, "%u", smbios.enabled_sockets);
setenv("smbios.socket.enabled", buf, 1);
}
- if (smbios_populated_sockets > 0) {
- sprintf(buf, "%u", smbios_populated_sockets);
+ if (smbios.populated_sockets > 0) {
+ sprintf(buf, "%u", smbios.populated_sockets);
setenv("smbios.socket.populated", buf, 1);
}
}
+
+static int
+smbios_match_str(const char* s1, const char* s2)
+{
+ return (s1 == NULL || (s2 != NULL && !strcmp(s1, s2)));
+}
+
+int
+smbios_match(const char* bios_vendor, const char* maker,
+ const char* product)
+{
+ smbios_probe();
+ return (smbios_match_str(bios_vendor, smbios.bios_vendor) &&
+ smbios_match_str(maker, smbios.maker) &&
+ smbios_match_str(product, smbios.product));
+}

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