Matt DeVillier has uploaded this change for review.
drivers/vpd: Add support to read device serial from VPD
Add functions to read the system and mainboard serial numbers
from VPD tables stored in flash.
Test: build/boot google/akemi with RO_VPD region persisted from
stock Google firmware, verify system/mainboard serial numbers
present via dmidecode.
Change-Id: I14ae07cd8b764e1e22d58577c7cc697ca1496bd5
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
---
M src/drivers/vpd/Kconfig
M src/drivers/vpd/vpd.c
2 files changed, 28 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/50/49050/1
diff --git a/src/drivers/vpd/Kconfig b/src/drivers/vpd/Kconfig
index 0b16058..6bfbf4f 100644
--- a/src/drivers/vpd/Kconfig
+++ b/src/drivers/vpd/Kconfig
@@ -19,3 +19,8 @@
default 0x4000
help
Size in bytes of the FMAP region created to store VPD tables.
+
+config SMBIOS_SERIAL_FROM_VPD
+ bool "Load device serial from VPD"
+ depends on VPD && GENERATE_SMBIOS_TABLES
+ default y
diff --git a/src/drivers/vpd/vpd.c b/src/drivers/vpd/vpd.c
index d3ff370..14dad8a 100644
--- a/src/drivers/vpd/vpd.c
+++ b/src/drivers/vpd/vpd.c
@@ -6,6 +6,7 @@
#include <ctype.h>
#include <fmap.h>
#include <program_loading.h>
+#include <smbios.h>
#include <string.h>
#include <timestamp.h>
#include <types.h>
@@ -297,4 +298,26 @@
return true;
}
+#if CONFIG(SMBIOS_SERIAL_FROM_VPD)
+#define VPD_KEY_SYSTEM_SERIAL "serial_number"
+#define VPD_KEY_MAINBOARD_SERIAL "mlb_serial_number"
+#define VPD_SERIAL_LEN 64
+
+const char *smbios_system_serial_number(void)
+{
+ static char serial[VPD_SERIAL_LEN];
+ if (vpd_gets(VPD_KEY_SYSTEM_SERIAL, serial, VPD_SERIAL_LEN, VPD_RO))
+ return serial;
+ return "";
+}
+
+const char *smbios_mainboard_serial_number(void)
+{
+ static char serial[VPD_SERIAL_LEN];
+ if (vpd_gets(VPD_KEY_MAINBOARD_SERIAL, serial, VPD_SERIAL_LEN, VPD_RO))
+ return serial;
+ return "";
+}
+#endif
+
ROMSTAGE_CBMEM_INIT_HOOK(cbmem_add_cros_vpd)
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