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-rw-r--r--src/commonlib/include/commonlib/cbmem_id.h2
-rw-r--r--src/commonlib/include/commonlib/coreboot_tables.h1
-rw-r--r--src/lib/coreboot_table.c1
-rw-r--r--src/vendorcode/google/chromeos/Makefile.inc2
-rw-r--r--src/vendorcode/google/chromeos/cros_vpd.c146
5 files changed, 112 insertions, 40 deletions
diff --git a/src/commonlib/include/commonlib/cbmem_id.h b/src/commonlib/include/commonlib/cbmem_id.h
index 580d5eac70..44ab31ecb8 100644
--- a/src/commonlib/include/commonlib/cbmem_id.h
+++ b/src/commonlib/include/commonlib/cbmem_id.h
@@ -62,6 +62,7 @@
#define CBMEM_ID_VBOOT_HANDOFF 0x780074f0
#define CBMEM_ID_VBOOT_SEL_REG 0x780074f1
#define CBMEM_ID_VBOOT_WORKBUF 0x78007343
+#define CBMEM_ID_VPD 0x56504420
#define CBMEM_ID_WIFI_CALIBRATION 0x57494649
#define CBMEM_ID_TO_NAME_TABLE \
@@ -105,5 +106,6 @@
{ CBMEM_ID_VBOOT_HANDOFF, "VBOOT " }, \
{ CBMEM_ID_VBOOT_SEL_REG, "VBOOT SEL " }, \
{ CBMEM_ID_VBOOT_WORKBUF, "VBOOT WORK " }, \
+ { CBMEM_ID_VPD, "VPD " }, \
{ CBMEM_ID_WIFI_CALIBRATION, "WIFI CLBR " },
#endif /* _CBMEM_ID_H_ */
diff --git a/src/commonlib/include/commonlib/coreboot_tables.h b/src/commonlib/include/commonlib/coreboot_tables.h
index 5e0c87c99d..32c388b037 100644
--- a/src/commonlib/include/commonlib/coreboot_tables.h
+++ b/src/commonlib/include/commonlib/coreboot_tables.h
@@ -245,6 +245,7 @@ void lb_ramoops(struct lb_header *header);
#define LB_TAG_MRC_CACHE 0x0018
#define LB_TAG_ACPI_GNVS 0x0024
#define LB_TAG_WIFI_CALIBRATION 0x0027
+#define LB_TAG_VPD 0x002c
struct lb_cbmem_ref {
uint32_t tag;
uint32_t size;
diff --git a/src/lib/coreboot_table.c b/src/lib/coreboot_table.c
index 258a4a53b7..2226f5e1fd 100644
--- a/src/lib/coreboot_table.c
+++ b/src/lib/coreboot_table.c
@@ -285,6 +285,7 @@ static void add_cbmem_pointers(struct lb_header *header)
{CBMEM_ID_TIMESTAMP, LB_TAG_TIMESTAMPS},
{CBMEM_ID_CONSOLE, LB_TAG_CBMEM_CONSOLE},
{CBMEM_ID_ACPI_GNVS, LB_TAG_ACPI_GNVS},
+ {CBMEM_ID_VPD, LB_TAG_VPD},
{CBMEM_ID_WIFI_CALIBRATION, LB_TAG_WIFI_CALIBRATION}
};
int i;
diff --git a/src/vendorcode/google/chromeos/Makefile.inc b/src/vendorcode/google/chromeos/Makefile.inc
index 6f6f709f59..ef84798521 100644
--- a/src/vendorcode/google/chromeos/Makefile.inc
+++ b/src/vendorcode/google/chromeos/Makefile.inc
@@ -36,7 +36,7 @@ ramstage-$(CONFIG_CHROMEOS_VBNV_FLASH) += vbnv_flash.c
ramstage-$(CONFIG_ELOG) += elog.c
ramstage-$(CONFIG_HAVE_ACPI_TABLES) += gnvs.c
ramstage-$(CONFIG_CHROMEOS_RAMOOPS) += ramoops.c
-romstage-y += vpd_decode.c cros_vpd.c
+romstage-y += vpd_decode.c
ramstage-y += vpd_decode.c cros_vpd.c vpd_mac.c vpd_serialno.c vpd_calibration.c
ifeq ($(CONFIG_ARCH_X86)$(CONFIG_ARCH_MIPS),)
bootblock-y += watchdog.c
diff --git a/src/vendorcode/google/chromeos/cros_vpd.c b/src/vendorcode/google/chromeos/cros_vpd.c
index f9aec88f36..8215454745 100644
--- a/src/vendorcode/google/chromeos/cros_vpd.c
+++ b/src/vendorcode/google/chromeos/cros_vpd.c
@@ -6,6 +6,7 @@
#include <console/console.h>
+#include <cbmem.h>
#include <fmap.h>
#include <stdlib.h>
#include <string.h>
@@ -17,6 +18,8 @@
/* Currently we only support Google VPD 2.0, which has a fixed offset. */
enum {
GOOGLE_VPD_2_0_OFFSET = 0x600,
+ CROSVPD_CBMEM_MAGIC = 0x43524f53,
+ CROSVPD_CBMEM_VERSION = 0x0001,
};
struct vpd_gets_arg {
@@ -26,56 +29,121 @@ struct vpd_gets_arg {
int matched;
};
-static int cros_vpd_load(uint8_t **vpd_address, int32_t *vpd_size)
+struct vpd_cbmem {
+ uint32_t magic;
+ uint32_t version;
+ uint32_t ro_size;
+ uint32_t rw_size;
+ uint8_t blob[0];
+ /* The blob contains both RO and RW data. It starts with RO (0 ..
+ * ro_size) and then RW (ro_size .. ro_size+rw_size).
+ */
+};
+
+/* returns the size of data in a VPD 2.0 formatted fmap region, or 0 */
+static int32_t get_vpd_size(const char *fmap_name, int32_t *base)
{
- MAYBE_STATIC int cached = 0;
- MAYBE_STATIC uint8_t *cached_address = NULL;
- MAYBE_STATIC int32_t cached_size = 0;
- MAYBE_STATIC int result = -1;
struct google_vpd_info info;
- int32_t base;
struct region_device vpd;
+ int32_t size;
- if (cached) {
- *vpd_address = cached_address;
- *vpd_size = cached_size;
- return result;
- }
-
- cached = 1;
- if (fmap_locate_area_as_rdev("RO_VPD", &vpd)) {
- printk(BIOS_ERR, "%s: No RO_VPD FMAP section.\n", __func__);
- return result;
+ if (fmap_locate_area_as_rdev(fmap_name, &vpd)) {
+ printk(BIOS_ERR, "%s: No %s FMAP section.\n", __func__,
+ fmap_name);
+ return 0;
}
- base = 0;
- cached_size = region_device_sz(&vpd);
+ size = region_device_sz(&vpd);
- if ((cached_size < GOOGLE_VPD_2_0_OFFSET + sizeof(info)) ||
+ if ((size < GOOGLE_VPD_2_0_OFFSET + sizeof(info)) ||
rdev_chain(&vpd, &vpd, GOOGLE_VPD_2_0_OFFSET,
- cached_size - GOOGLE_VPD_2_0_OFFSET)) {
+ size - GOOGLE_VPD_2_0_OFFSET)) {
printk(BIOS_ERR, "%s: Too small (%d) for Google VPD 2.0.\n",
- __func__, cached_size);
- return result;
+ __func__, size);
+ return 0;
}
/* Try if we can find a google_vpd_info, otherwise read whole VPD. */
- if (rdev_readat(&vpd, &info, base, sizeof(info)) == sizeof(info) &&
+ if (rdev_readat(&vpd, &info, *base, sizeof(info)) == sizeof(info) &&
memcmp(info.header.magic, VPD_INFO_MAGIC, sizeof(info.header.magic))
- == 0 && cached_size >= info.size + sizeof(info)) {
- base += sizeof(info);
- cached_size = info.size;
+ == 0 && size >= info.size + sizeof(info)) {
+ *base += sizeof(info);
+ size = info.size;
+ } else {
+ size -= GOOGLE_VPD_2_0_OFFSET;
+ }
+
+ return size;
+}
+
+static void cbmem_add_cros_vpd(int is_recovery)
+{
+ struct region_device vpd;
+ struct vpd_cbmem *cbmem;
+ int32_t ro_vpd_base = 0, rw_vpd_base = 0;
+ int32_t ro_vpd_size, rw_vpd_size;
+
+ ro_vpd_size = get_vpd_size("RO_VPD", &ro_vpd_base);
+ rw_vpd_size = get_vpd_size("RW_VPD", &rw_vpd_base);
+
+ /* no VPD at all? nothing to do then */
+ if ((ro_vpd_size == 0) && (rw_vpd_size == 0))
+ return;
+
+ cbmem = cbmem_add(CBMEM_ID_VPD, sizeof(*cbmem) + ro_vpd_size +
+ rw_vpd_size);
+ if (!cbmem) {
+ printk(BIOS_ERR, "%s: Failed to allocate CBMEM (%u+%u).\n",
+ __func__, ro_vpd_size, rw_vpd_size);
+ return;
}
- cached_address = rdev_mmap(&vpd, base, cached_size);
- if (cached_address) {
- *vpd_address = cached_address;
- *vpd_size = cached_size;
- printk(BIOS_DEBUG, "%s: Got VPD: %#x+%#x\n", __func__, base,
- cached_size);
- result = 0;
+ cbmem->magic = CROSVPD_CBMEM_MAGIC;
+ cbmem->version = CROSVPD_CBMEM_VERSION;
+ cbmem->ro_size = 0;
+ cbmem->rw_size = 0;
+
+ if (ro_vpd_size) {
+ if (fmap_locate_area_as_rdev("RO_VPD", &vpd)) {
+ /* shouldn't happen, but let's be extra defensive */
+ printk(BIOS_ERR, "%s: No RO_VPD FMAP section.\n",
+ __func__);
+ return;
+ }
+ rdev_chain(&vpd, &vpd, GOOGLE_VPD_2_0_OFFSET,
+ region_device_sz(&vpd) - GOOGLE_VPD_2_0_OFFSET);
+
+
+ if (rdev_readat(&vpd, cbmem->blob, ro_vpd_base, ro_vpd_size) ==
+ ro_vpd_size) {
+ cbmem->ro_size = ro_vpd_size;
+ } else {
+ printk(BIOS_ERR,
+ "%s: Reading RO_VPD FMAP section failed.\n",
+ __func__);
+ ro_vpd_size = 0;
+ }
+ }
+
+ if (rw_vpd_size) {
+ if (fmap_locate_area_as_rdev("RW_VPD", &vpd)) {
+ /* shouldn't happen, but let's be extra defensive */
+ printk(BIOS_ERR, "%s: No RW_VPD FMAP section.\n",
+ __func__);
+ return;
+ }
+ rdev_chain(&vpd, &vpd, GOOGLE_VPD_2_0_OFFSET,
+ region_device_sz(&vpd) - GOOGLE_VPD_2_0_OFFSET);
+
+ if (rdev_readat(&vpd, cbmem->blob + ro_vpd_size, rw_vpd_base,
+ rw_vpd_size) == rw_vpd_size) {
+ cbmem->rw_size = rw_vpd_size;
+ } else {
+ printk(BIOS_ERR,
+ "%s: Reading RW_VPD FMAP section failed.\n",
+ __func__);
+ }
}
- return result;
}
static int vpd_gets_callback(const uint8_t *key, int32_t key_len,
@@ -97,19 +165,18 @@ static int vpd_gets_callback(const uint8_t *key, int32_t key_len,
const void *cros_vpd_find(const char *key, int *size)
{
- uint8_t *vpd_address = NULL;
- int32_t vpd_size = 0;
struct vpd_gets_arg arg = {0};
int consumed = 0;
+ const struct vpd_cbmem *vpd;
- if (cros_vpd_load(&vpd_address, &vpd_size) != 0) {
+ vpd = cbmem_find(CBMEM_ID_VPD);
+ if (!vpd || !vpd->ro_size)
return NULL;
- }
arg.key = (const uint8_t *)key;
arg.key_len = strlen(key);
- while (VPD_OK == decodeVpdString(vpd_size, vpd_address, &consumed,
+ while (VPD_OK == decodeVpdString(vpd->ro_size, vpd->blob, &consumed,
vpd_gets_callback, &arg)) {
/* Iterate until found or no more entries. */
}
@@ -141,3 +208,4 @@ char *cros_vpd_gets(const char *key, char *buffer, int size)
return buffer;
}
+RAMSTAGE_CBMEM_INIT_HOOK(cbmem_add_cros_vpd)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 05:16:23 +0000