+// SPDX-License-Identifier: GPL-2.0+
/*
*
* Adapted from coreboot src/arch/x86/smbios.c
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <dm.h>
+#include <env.h>
+#include <linux/stringify.h>
+#include <mapmem.h>
#include <smbios.h>
+#include <sysinfo.h>
#include <tables_csum.h>
#include <version.h>
#ifdef CONFIG_CPU
#include <cpu.h>
-#include <dm.h>
#include <dm/uclass-internal.h>
#endif
+/* Safeguard for checking that U_BOOT_VERSION_NUM macros are compatible with U_BOOT_DMI */
+#if U_BOOT_VERSION_NUM < 2000 || U_BOOT_VERSION_NUM > 2099 || \
+ U_BOOT_VERSION_NUM_PATCH < 1 || U_BOOT_VERSION_NUM_PATCH > 12
+#error U_BOOT_VERSION_NUM macros are not compatible with DMI, fix U_BOOT_DMI macros
+#endif
+
+/*
+ * U_BOOT_DMI_DATE contains BIOS Release Date in format mm/dd/yyyy.
+ * BIOS Release Date is calculated from U-Boot version and fixed day 01.
+ * So for U-Boot version 2021.04 it is calculated as "04/01/2021".
+ * BIOS Release Date should contain date when code was released
+ * and not when it was built or compiled.
+ */
+#if U_BOOT_VERSION_NUM_PATCH < 10
+#define U_BOOT_DMI_MONTH "0" __stringify(U_BOOT_VERSION_NUM_PATCH)
+#else
+#define U_BOOT_DMI_MONTH __stringify(U_BOOT_VERSION_NUM_PATCH)
+#endif
+#define U_BOOT_DMI_DAY "01"
+#define U_BOOT_DMI_YEAR __stringify(U_BOOT_VERSION_NUM)
+#define U_BOOT_DMI_DATE U_BOOT_DMI_MONTH "/" U_BOOT_DMI_DAY "/" U_BOOT_DMI_YEAR
+
DECLARE_GLOBAL_DATA_PTR;
+/**
+ * struct smbios_ctx - context for writing SMBIOS tables
+ *
+ * @node: node containing the information to write (ofnode_null() if none)
+ * @dev: sysinfo device to use (NULL if none)
+ * @eos: end-of-string pointer for the table being processed. This is set
+ * up when we start processing a table
+ * @next_ptr: pointer to the start of the next string to be added. When the
+ * table is nopt empty, this points to the byte after the \0 of the
+ * previous string.
+ * @last_str: points to the last string that was written to the table, or NULL
+ * if none
+ */
+struct smbios_ctx {
+ ofnode node;
+ struct udevice *dev;
+ char *eos;
+ char *next_ptr;
+ char *last_str;
+};
+
+/**
+ * Function prototype to write a specific type of SMBIOS structure
+ *
+ * @addr: start address to write the structure
+ * @handle: the structure's handle, a unique 16-bit number
+ * @ctx: context for writing the tables
+ * Return: size of the structure
+ */
+typedef int (*smbios_write_type)(ulong *addr, int handle,
+ struct smbios_ctx *ctx);
+
+/**
+ * struct smbios_write_method - Information about a table-writing function
+ *
+ * @write: Function to call
+ * @subnode_name: Name of subnode which has the information for this function,
+ * NULL if none
+ */
+struct smbios_write_method {
+ smbios_write_type write;
+ const char *subnode_name;
+};
+
/**
* smbios_add_string() - add a string to the string area
*
* This adds a string to the string area which is appended directly after
* the formatted portion of an SMBIOS structure.
*
- * @start: string area start address
+ * @ctx: SMBIOS context
* @str: string to add
- * @return: string number in the string area
+ * Return: string number in the string area (1 or more)
*/
-static int smbios_add_string(char *start, const char *str)
+static int smbios_add_string(struct smbios_ctx *ctx, const char *str)
{
int i = 1;
- char *p = start;
+ char *p = ctx->eos;
+
+ if (!*str)
+ str = "Unknown";
for (;;) {
if (!*p) {
+ ctx->last_str = p;
strcpy(p, str);
p += strlen(str);
*p++ = '\0';
+ ctx->next_ptr = p;
*p++ = '\0';
return i;
}
- if (!strcmp(p, str))
+ if (!strcmp(p, str)) {
+ ctx->last_str = p;
return i;
+ }
p += strlen(p) + 1;
i++;
}
/**
- * smbios_string_table_len() - compute the string area size
+ * smbios_add_prop_si() - Add a property from the devicetree or sysinfo
*
- * This computes the size of the string area including the string terminator.
+ * Sysinfo is used if available, with a fallback to devicetree
*
- * @start: string area start address
- * @return: string area size
+ * @ctx: context for writing the tables
+ * @prop: property to write
+ * Return: 0 if not found, else SMBIOS string number (1 or more)
*/
-static int smbios_string_table_len(char *start)
+static int smbios_add_prop_si(struct smbios_ctx *ctx, const char *prop,
+ int sysinfo_id)
{
- char *p = start;
- int i, len = 0;
+ if (sysinfo_id && ctx->dev) {
+ char val[SMBIOS_STR_MAX];
+ int ret;
- while (*p) {
- i = strlen(p) + 1;
- p += i;
- len += i;
+ ret = sysinfo_get_str(ctx->dev, sysinfo_id, sizeof(val), val);
+ if (!ret)
+ return smbios_add_string(ctx, val);
}
+ if (IS_ENABLED(CONFIG_OF_CONTROL)) {
+ const char *str;
+
+ str = ofnode_read_string(ctx->node, prop);
+ if (str)
+ return smbios_add_string(ctx, str);
+ }
+
+ return 0;
+}
+
+/**
+ * smbios_add_prop() - Add a property from the devicetree
+ *
+ * @prop: property to write
+ * Return: 0 if not found, else SMBIOS string number (1 or more)
+ */
+static int smbios_add_prop(struct smbios_ctx *ctx, const char *prop)
+{
+ return smbios_add_prop_si(ctx, prop, SYSINFO_ID_NONE);
+}
+
+static void smbios_set_eos(struct smbios_ctx *ctx, char *eos)
+{
+ ctx->eos = eos;
+ ctx->next_ptr = eos;
+ ctx->last_str = NULL;
+}
+
+int smbios_update_version(const char *version)
+{
+ char *ptr = gd->smbios_version;
+ uint old_len, len;
+
+ if (!ptr)
+ return log_ret(-ENOENT);
+
+ /*
+ * This string is supposed to have at least enough bytes and is
+ * padded with spaces. Update it, taking care not to move the
+ * \0 terminator, so that other strings in the string table
+ * are not disturbed. See smbios_add_string()
+ */
+ old_len = strnlen(ptr, SMBIOS_STR_MAX);
+ len = strnlen(version, SMBIOS_STR_MAX);
+ if (len > old_len)
+ return log_ret(-ENOSPC);
+
+ log_debug("Replacing SMBIOS type 0 version string '%s'\n", ptr);
+ memcpy(ptr, version, len);
+#ifdef LOG_DEBUG
+ print_buffer((ulong)ptr, ptr, 1, old_len + 1, 0);
+#endif
+
+ return 0;
+}
- return len + 1;
+/**
+ * smbios_string_table_len() - compute the string area size
+ *
+ * This computes the size of the string area including the string terminator.
+ *
+ * @ctx: SMBIOS context
+ * Return: string area size
+ */
+static int smbios_string_table_len(const struct smbios_ctx *ctx)
+{
+ /* Allow for the final \0 after all strings */
+ return (ctx->next_ptr + 1) - ctx->eos;
}
-static int smbios_write_type0(ulong *current, int handle)
+static int smbios_write_type0(ulong *current, int handle,
+ struct smbios_ctx *ctx)
{
- struct smbios_type0 *t = (struct smbios_type0 *)*current;
+ struct smbios_type0 *t;
int len = sizeof(struct smbios_type0);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type0));
fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle);
- t->vendor = smbios_add_string(t->eos, "U-Boot");
- t->bios_ver = smbios_add_string(t->eos, PLAIN_VERSION);
- t->bios_release_date = smbios_add_string(t->eos, U_BOOT_DMI_DATE);
+ smbios_set_eos(ctx, t->eos);
+ t->vendor = smbios_add_string(ctx, "U-Boot");
+
+ t->bios_ver = smbios_add_prop(ctx, "version");
+ if (!t->bios_ver)
+ t->bios_ver = smbios_add_string(ctx, PLAIN_VERSION);
+ if (t->bios_ver)
+ gd->smbios_version = ctx->last_str;
+ log_debug("smbios_version = %p: '%s'\n", gd->smbios_version,
+ gd->smbios_version);
+#ifdef LOG_DEBUG
+ print_buffer((ulong)gd->smbios_version, gd->smbios_version,
+ 1, strlen(gd->smbios_version) + 1, 0);
+#endif
+ t->bios_release_date = smbios_add_string(ctx, U_BOOT_DMI_DATE);
#ifdef CONFIG_ROM_SIZE
t->bios_rom_size = (CONFIG_ROM_SIZE / 65536) - 1;
#endif
t->bios_characteristics_ext1 = BIOS_CHARACTERISTICS_EXT1_ACPI;
#endif
#ifdef CONFIG_EFI_LOADER
- t->bios_characteristics_ext1 |= BIOS_CHARACTERISTICS_EXT1_UEFI;
+ t->bios_characteristics_ext2 |= BIOS_CHARACTERISTICS_EXT2_UEFI;
#endif
- t->bios_characteristics_ext2 = BIOS_CHARACTERISTICS_EXT2_TARGET;
+ t->bios_characteristics_ext2 |= BIOS_CHARACTERISTICS_EXT2_TARGET;
- t->bios_major_release = 0xff;
- t->bios_minor_release = 0xff;
+ /* bios_major_release has only one byte, so drop century */
+ t->bios_major_release = U_BOOT_VERSION_NUM % 100;
+ t->bios_minor_release = U_BOOT_VERSION_NUM_PATCH;
t->ec_major_release = 0xff;
t->ec_minor_release = 0xff;
- len = t->length + smbios_string_table_len(t->eos);
+ len = t->length + smbios_string_table_len(ctx);
*current += len;
+ unmap_sysmem(t);
return len;
}
-static int smbios_write_type1(ulong *current, int handle)
+static int smbios_write_type1(ulong *current, int handle,
+ struct smbios_ctx *ctx)
{
- struct smbios_type1 *t = (struct smbios_type1 *)*current;
+ struct smbios_type1 *t;
int len = sizeof(struct smbios_type1);
char *serial_str = env_get("serial#");
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type1));
fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle);
- t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
- t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);
+ smbios_set_eos(ctx, t->eos);
+ t->manufacturer = smbios_add_prop(ctx, "manufacturer");
+ if (!t->manufacturer)
+ t->manufacturer = smbios_add_string(ctx, "Unknown");
+ t->product_name = smbios_add_prop(ctx, "product");
+ if (!t->product_name)
+ t->product_name = smbios_add_string(ctx, "Unknown Product");
+ t->version = smbios_add_prop_si(ctx, "version",
+ SYSINFO_ID_SMBIOS_SYSTEM_VERSION);
if (serial_str) {
- strncpy((char*)t->uuid, serial_str, sizeof(t->uuid));
- t->serial_number = smbios_add_string(t->eos, serial_str);
+ t->serial_number = smbios_add_string(ctx, serial_str);
+ strncpy((char *)t->uuid, serial_str, sizeof(t->uuid));
+ } else {
+ t->serial_number = smbios_add_prop(ctx, "serial");
}
+ t->sku_number = smbios_add_prop(ctx, "sku");
+ t->family = smbios_add_prop(ctx, "family");
- len = t->length + smbios_string_table_len(t->eos);
+ len = t->length + smbios_string_table_len(ctx);
*current += len;
+ unmap_sysmem(t);
return len;
}
-static int smbios_write_type2(ulong *current, int handle)
+static int smbios_write_type2(ulong *current, int handle,
+ struct smbios_ctx *ctx)
{
- struct smbios_type2 *t = (struct smbios_type2 *)*current;
+ struct smbios_type2 *t;
int len = sizeof(struct smbios_type2);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type2));
fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle);
- t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
- t->product_name = smbios_add_string(t->eos, CONFIG_SMBIOS_PRODUCT_NAME);
+ smbios_set_eos(ctx, t->eos);
+ t->manufacturer = smbios_add_prop(ctx, "manufacturer");
+ if (!t->manufacturer)
+ t->manufacturer = smbios_add_string(ctx, "Unknown");
+ t->product_name = smbios_add_prop(ctx, "product");
+ if (!t->product_name)
+ t->product_name = smbios_add_string(ctx, "Unknown Product");
+ t->version = smbios_add_prop_si(ctx, "version",
+ SYSINFO_ID_SMBIOS_BASEBOARD_VERSION);
+ t->asset_tag_number = smbios_add_prop(ctx, "asset-tag");
t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING;
t->board_type = SMBIOS_BOARD_MOTHERBOARD;
- len = t->length + smbios_string_table_len(t->eos);
+ len = t->length + smbios_string_table_len(ctx);
*current += len;
+ unmap_sysmem(t);
return len;
}
-static int smbios_write_type3(ulong *current, int handle)
+static int smbios_write_type3(ulong *current, int handle,
+ struct smbios_ctx *ctx)
{
- struct smbios_type3 *t = (struct smbios_type3 *)*current;
+ struct smbios_type3 *t;
int len = sizeof(struct smbios_type3);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type3));
fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle);
- t->manufacturer = smbios_add_string(t->eos, CONFIG_SMBIOS_MANUFACTURER);
+ smbios_set_eos(ctx, t->eos);
+ t->manufacturer = smbios_add_prop(ctx, "manufacturer");
+ if (!t->manufacturer)
+ t->manufacturer = smbios_add_string(ctx, "Unknown");
t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP;
t->bootup_state = SMBIOS_STATE_SAFE;
t->power_supply_state = SMBIOS_STATE_SAFE;
t->thermal_state = SMBIOS_STATE_SAFE;
t->security_status = SMBIOS_SECURITY_NONE;
- len = t->length + smbios_string_table_len(t->eos);
+ len = t->length + smbios_string_table_len(ctx);
*current += len;
+ unmap_sysmem(t);
return len;
}
-static void smbios_write_type4_dm(struct smbios_type4 *t)
+static void smbios_write_type4_dm(struct smbios_type4 *t,
+ struct smbios_ctx *ctx)
{
u16 processor_family = SMBIOS_PROCESSOR_FAMILY_UNKNOWN;
const char *vendor = "Unknown";
#ifdef CONFIG_CPU
char processor_name[49];
char vendor_name[49];
- struct udevice *dev = NULL;
+ struct udevice *cpu = NULL;
- uclass_find_first_device(UCLASS_CPU, &dev);
- if (dev) {
- struct cpu_platdata *plat = dev_get_parent_platdata(dev);
+ uclass_find_first_device(UCLASS_CPU, &cpu);
+ if (cpu) {
+ struct cpu_plat *plat = dev_get_parent_plat(cpu);
if (plat->family)
processor_family = plat->family;
t->processor_id[0] = plat->id[0];
t->processor_id[1] = plat->id[1];
- if (!cpu_get_vendor(dev, vendor_name, sizeof(vendor_name)))
+ if (!cpu_get_vendor(cpu, vendor_name, sizeof(vendor_name)))
vendor = vendor_name;
- if (!cpu_get_desc(dev, processor_name, sizeof(processor_name)))
+ if (!cpu_get_desc(cpu, processor_name, sizeof(processor_name)))
name = processor_name;
}
#endif
t->processor_family = processor_family;
- t->processor_manufacturer = smbios_add_string(t->eos, vendor);
- t->processor_version = smbios_add_string(t->eos, name);
+ t->processor_manufacturer = smbios_add_string(ctx, vendor);
+ t->processor_version = smbios_add_string(ctx, name);
}
-static int smbios_write_type4(ulong *current, int handle)
+static int smbios_write_type4(ulong *current, int handle,
+ struct smbios_ctx *ctx)
{
- struct smbios_type4 *t = (struct smbios_type4 *)*current;
+ struct smbios_type4 *t;
int len = sizeof(struct smbios_type4);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type4));
fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle);
+ smbios_set_eos(ctx, t->eos);
t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL;
- smbios_write_type4_dm(t);
+ smbios_write_type4_dm(t, ctx);
t->status = SMBIOS_PROCESSOR_STATUS_ENABLED;
t->processor_upgrade = SMBIOS_PROCESSOR_UPGRADE_NONE;
t->l1_cache_handle = 0xffff;
t->l3_cache_handle = 0xffff;
t->processor_family2 = t->processor_family;
- len = t->length + smbios_string_table_len(t->eos);
+ len = t->length + smbios_string_table_len(ctx);
*current += len;
+ unmap_sysmem(t);
return len;
}
-static int smbios_write_type32(ulong *current, int handle)
+static int smbios_write_type32(ulong *current, int handle,
+ struct smbios_ctx *ctx)
{
- struct smbios_type32 *t = (struct smbios_type32 *)*current;
+ struct smbios_type32 *t;
int len = sizeof(struct smbios_type32);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type32));
fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle);
+ smbios_set_eos(ctx, t->eos);
*current += len;
+ unmap_sysmem(t);
return len;
}
-static int smbios_write_type127(ulong *current, int handle)
+static int smbios_write_type127(ulong *current, int handle,
+ struct smbios_ctx *ctx)
{
- struct smbios_type127 *t = (struct smbios_type127 *)*current;
+ struct smbios_type127 *t;
int len = sizeof(struct smbios_type127);
+ t = map_sysmem(*current, len);
memset(t, 0, sizeof(struct smbios_type127));
fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle);
*current += len;
+ unmap_sysmem(t);
return len;
}
-static smbios_write_type smbios_write_funcs[] = {
- smbios_write_type0,
- smbios_write_type1,
- smbios_write_type2,
- smbios_write_type3,
- smbios_write_type4,
- smbios_write_type32,
- smbios_write_type127
+static struct smbios_write_method smbios_write_funcs[] = {
+ { smbios_write_type0, "bios", },
+ { smbios_write_type1, "system", },
+ { smbios_write_type2, "baseboard", },
+ { smbios_write_type3, "chassis", },
+ { smbios_write_type4, },
+ { smbios_write_type32, },
+ { smbios_write_type127 },
};
ulong write_smbios_table(ulong addr)
{
+ ofnode parent_node = ofnode_null();
struct smbios_entry *se;
+ struct smbios_ctx ctx;
+ ulong table_addr;
ulong tables;
int len = 0;
int max_struct_size = 0;
int isize;
int i;
+ ctx.node = ofnode_null();
+ if (IS_ENABLED(CONFIG_OF_CONTROL)) {
+ uclass_first_device(UCLASS_SYSINFO, &ctx.dev);
+ if (ctx.dev)
+ parent_node = dev_read_subnode(ctx.dev, "smbios");
+ } else {
+ ctx.dev = NULL;
+ }
+
/* 16 byte align the table address */
addr = ALIGN(addr, 16);
- se = (struct smbios_entry *)(uintptr_t)addr;
+ se = map_sysmem(addr, sizeof(struct smbios_entry));
memset(se, 0, sizeof(struct smbios_entry));
addr += sizeof(struct smbios_entry);
/* populate minimum required tables */
for (i = 0; i < ARRAY_SIZE(smbios_write_funcs); i++) {
- int tmp = smbios_write_funcs[i]((ulong *)&addr, handle++);
+ const struct smbios_write_method *method;
+ int tmp;
+
+ method = &smbios_write_funcs[i];
+ if (IS_ENABLED(CONFIG_OF_CONTROL) && method->subnode_name)
+ ctx.node = ofnode_find_subnode(parent_node,
+ method->subnode_name);
+ tmp = method->write((ulong *)&addr, handle++, &ctx);
+
max_struct_size = max(max_struct_size, tmp);
len += tmp;
}
se->max_struct_size = max_struct_size;
memcpy(se->intermediate_anchor, "_DMI_", 5);
se->struct_table_length = len;
- se->struct_table_address = tables;
+
+ /*
+ * We must use a pointer here so things work correctly on sandbox. The
+ * user of this table is not aware of the mapping of addresses to
+ * sandbox's DRAM buffer.
+ */
+ table_addr = (ulong)map_sysmem(tables, 0);
+ if (sizeof(table_addr) > sizeof(u32) && table_addr > (ulong)UINT_MAX) {
+ /*
+ * We need to put this >32-bit pointer into the table but the
+ * field is only 32 bits wide.
+ */
+ printf("WARNING: SMBIOS table_address overflow %llx\n",
+ (unsigned long long)table_addr);
+ addr = 0;
+ goto out;
+ }
+ se->struct_table_address = table_addr;
+
se->struct_count = handle;
/* calculate checksums */
isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET;
se->intermediate_checksum = table_compute_checksum(istart, isize);
se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry));
+out:
+ unmap_sysmem(se);
return addr;
}
projects / J-u-boot.git / blobdiff