[u-boot.git] / lib / smbios.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2015, Bin Meng <[email protected]>
 *
 * Adapted from coreboot src/arch/x86/smbios.c
 */

#include <common.h>
#include <dm.h>
#include <env.h>
#include <mapmem.h>
#include <smbios.h>
#include <tables_csum.h>
#include <version.h>
#ifdef CONFIG_CPU
#include <cpu.h>
#include <dm/uclass-internal.h>
#endif

DECLARE_GLOBAL_DATA_PTR;

enum {
	SMBIOS_STR_MAX	= 64,	/* Maximum length allowed for a string */
};

/**
 * 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.
 *
 * @ctx:	SMBIOS context
 * @str:	string to add
 * @return:	string number in the string area (1 or more)
 */
static int smbios_add_string(struct smbios_ctx *ctx, const char *str)
{
	int i = 1;
	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)) {
			ctx->last_str = p;
			return i;
		}

		p += strlen(p) + 1;
		i++;
	}
}

/**
 * smbios_add_prop() - Add a property from the device tree
 *
 * @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_add_prop(struct smbios_ctx *ctx, const char *prop)
{
	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;
}

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;
}

/**
 * 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,
			      struct smbios_ctx *ctx)
{
	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);
	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 = BIOS_CHARACTERISTICS_PCI_SUPPORTED |
				  BIOS_CHARACTERISTICS_SELECTABLE_BOOT |
				  BIOS_CHARACTERISTICS_UPGRADEABLE;
#ifdef CONFIG_GENERATE_ACPI_TABLE
	t->bios_characteristics_ext1 = BIOS_CHARACTERISTICS_EXT1_ACPI;
#endif
#ifdef CONFIG_EFI_LOADER
	t->bios_characteristics_ext1 |= BIOS_CHARACTERISTICS_EXT1_UEFI;
#endif
	t->bios_characteristics_ext2 = BIOS_CHARACTERISTICS_EXT2_TARGET;

	/* 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(ctx);
	*current += len;
	unmap_sysmem(t);

	return len;
}

static int smbios_write_type1(ulong *current, int handle,
			      struct smbios_ctx *ctx)
{
	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);
	smbios_set_eos(ctx, t->eos);
	t->manufacturer = smbios_add_prop(ctx, "manufacturer");
	t->product_name = smbios_add_prop(ctx, "product");
	t->version = smbios_add_prop(ctx, "version");
	if (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(ctx);
	*current += len;
	unmap_sysmem(t);

	return len;
}

static int smbios_write_type2(ulong *current, int handle,
			      struct smbios_ctx *ctx)
{
	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);
	smbios_set_eos(ctx, t->eos);
	t->manufacturer = smbios_add_prop(ctx, "manufacturer");
	t->product_name = smbios_add_prop(ctx, "product");
	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(ctx);
	*current += len;
	unmap_sysmem(t);

	return len;
}

static int smbios_write_type3(ulong *current, int handle,
			      struct smbios_ctx *ctx)
{
	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);
	smbios_set_eos(ctx, t->eos);
	t->manufacturer = smbios_add_prop(ctx, "manufacturer");
	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(ctx);
	*current += len;
	unmap_sysmem(t);

	return len;
}

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";
	const char *name = "Unknown";

#ifdef CONFIG_CPU
	char processor_name[49];
	char vendor_name[49];
	struct udevice *cpu = NULL;

	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(cpu, vendor_name, sizeof(vendor_name)))
			vendor = vendor_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(ctx, vendor);
	t->processor_version = smbios_add_string(ctx, name);
}

static int smbios_write_type4(ulong *current, int handle,
			      struct smbios_ctx *ctx)
{
	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, ctx);
	t->status = SMBIOS_PROCESSOR_STATUS_ENABLED;
	t->processor_upgrade = SMBIOS_PROCESSOR_UPGRADE_NONE;
	t->l1_cache_handle = 0xffff;
	t->l2_cache_handle = 0xffff;
	t->l3_cache_handle = 0xffff;
	t->processor_family2 = t->processor_family;

	len = t->length + smbios_string_table_len(ctx);
	*current += len;
	unmap_sysmem(t);

	return len;
}

static int smbios_write_type32(ulong *current, int handle,
			       struct smbios_ctx *ctx)
{
	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,
				struct smbios_ctx *ctx)
{
	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 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 handle = 0;
	char *istart;
	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 = map_sysmem(addr, sizeof(struct smbios_entry));
	memset(se, 0, sizeof(struct smbios_entry));

	addr += sizeof(struct smbios_entry);
	addr = ALIGN(addr, 16);
	tables = addr;

	/* populate minimum required tables */
	for (i = 0; i < ARRAY_SIZE(smbios_write_funcs); i++) {
		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;
	}

	memcpy(se->anchor, "_SM_", 4);
	se->length = sizeof(struct smbios_entry);
	se->major_ver = SMBIOS_MAJOR_VER;
	se->minor_ver = SMBIOS_MINOR_VER;
	se->max_struct_size = max_struct_size;
	memcpy(se->intermediate_anchor, "_DMI_", 5);
	se->struct_table_length = len;

	/*
	 * 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);
		table_addr = 0;
	}
	se->struct_table_address = table_addr;

	se->struct_count = handle;

	/* calculate checksums */
	istart = (char *)se + SMBIOS_INTERMEDIATE_OFFSET;
	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));
	unmap_sysmem(se);

	return addr;
}
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
721e992a BM	2	/*
	3	* Copyright (C) 2015, Bin Meng <[email protected]>
	4	*
	5	* Adapted from coreboot src/arch/x86/smbios.c
721e992a BM	6	*/
	7
	8	#include <common.h>
78227d4e	9	#include <dm.h>
7b51b576	10	#include <env.h>
a2505fc8	11	#include <mapmem.h>
4b6dddc2 AG	12	#include <smbios.h>
4b6dddc2 AG	13	#include <tables_csum.h>
721e992a	14	#include <version.h>
96476206 AG	15	#ifdef CONFIG_CPU
96476206 AG	16	#include <cpu.h>
96476206 AG	17	#include <dm/uclass-internal.h>
96476206 AG	18	#endif
721e992a	19
e9adaa75 SG	20	DECLARE_GLOBAL_DATA_PTR;
	21
	22	enum {
	23	SMBIOS_STR_MAX = 64, /* Maximum length allowed for a string */
	24	};
	25
1e8989ad SG	26	/**
	27	* struct smbios_ctx - context for writing SMBIOS tables
	28	*
	29	* @node: node containing the information to write (ofnode_null() if none)
	30	* @dev: sysinfo device to use (NULL if none)
0c95fff3 SG	31	* @eos: end-of-string pointer for the table being processed. This is set
0c95fff3 SG	32	* up when we start processing a table
fd3b826d SG	33	* @next_ptr: pointer to the start of the next string to be added. When the
	34	* table is nopt empty, this points to the byte after the \0 of the
	35	* previous string.
e9adaa75 SG	36	* @last_str: points to the last string that was written to the table, or NULL
e9adaa75 SG	37	* if none
1e8989ad SG	38	*/
	39	struct smbios_ctx {
	40	ofnode node;
	41	struct udevice *dev;
0c95fff3	42	char *eos;
fd3b826d	43	char *next_ptr;
e9adaa75	44	char *last_str;
1e8989ad SG	45	};
1e8989ad SG	46
0e89b859 SG	47	/**
	48	* Function prototype to write a specific type of SMBIOS structure
	49	*
	50	* @addr: start address to write the structure
	51	* @handle: the structure's handle, a unique 16-bit number
1e8989ad	52	* @ctx: context for writing the tables
0e89b859 SG	53	* @return: size of the structure
0e89b859 SG	54	*/
1e8989ad SG	55	typedef int (smbios_write_type)(ulong addr, int handle,
1e8989ad SG	56	struct smbios_ctx *ctx);
0e89b859	57
44ffb6f0 SG	58	/**
	59	* struct smbios_write_method - Information about a table-writing function
	60	*
	61	* @write: Function to call
	62	* @subnode_name: Name of subnode which has the information for this function,
	63	* NULL if none
	64	*/
	65	struct smbios_write_method {
	66	smbios_write_type write;
	67	const char *subnode_name;
	68	};
	69
721e992a BM	70	/**
	71	* smbios_add_string() - add a string to the string area
	72	*
	73	* This adds a string to the string area which is appended directly after
	74	* the formatted portion of an SMBIOS structure.
	75	*
0c95fff3	76	* @ctx: SMBIOS context
721e992a	77	* @str: string to add
78227d4e	78	* @return: string number in the string area (1 or more)
721e992a	79	*/
0c95fff3	80	static int smbios_add_string(struct smbios_ctx ctx, const char str)
721e992a BM	81	{
721e992a BM	82	int i = 1;
0c95fff3 SG	83	char *p = ctx->eos;
0c95fff3 SG	84
00a871d3 HS	85	if (!*str)
00a871d3 HS	86	str = "Unknown";
721e992a BM	87
	88	for (;;) {
	89	if (!*p) {
e9adaa75	90	ctx->last_str = p;
721e992a BM	91	strcpy(p, str);
	92	p += strlen(str);
	93	*p++ = '\0';
fd3b826d	94	ctx->next_ptr = p;
721e992a BM	95	*p++ = '\0';
	96
	97	return i;
	98	}
	99
e9adaa75 SG	100	if (!strcmp(p, str)) {
e9adaa75 SG	101	ctx->last_str = p;
721e992a	102	return i;
e9adaa75	103	}
721e992a BM	104
	105	p += strlen(p) + 1;
	106	i++;
	107	}
	108	}
	109
44ffb6f0	110	/**
e4f8e543	111	* smbios_add_prop() - Add a property from the device tree
44ffb6f0	112	*
1e8989ad	113	* @ctx: context for writing the tables
44ffb6f0	114	* @prop: property to write
44ffb6f0 SG	115	* @return 0 if not found, else SMBIOS string number (1 or more)
44ffb6f0 SG	116	*/
0c95fff3	117	static int smbios_add_prop(struct smbios_ctx ctx, const char prop)
44ffb6f0	118	{
e4f8e543 SG	119	if (IS_ENABLED(CONFIG_OF_CONTROL)) {
	120	const char *str;
	121
1e8989ad	122	str = ofnode_read_string(ctx->node, prop);
e4f8e543	123	if (str)
0c95fff3	124	return smbios_add_string(ctx, str);
e4f8e543	125	}
44ffb6f0 SG	126
	127	return 0;
	128	}
	129
0c95fff3 SG	130	static void smbios_set_eos(struct smbios_ctx ctx, char eos)
	131	{
	132	ctx->eos = eos;
fd3b826d	133	ctx->next_ptr = eos;
e9adaa75 SG	134	ctx->last_str = NULL;
	135	}
	136
	137	int smbios_update_version(const char *version)
	138	{
	139	char *ptr = gd->smbios_version;
	140	uint old_len, len;
	141
	142	if (!ptr)
	143	return log_ret(-ENOENT);
	144
	145	/*
	146	* This string is supposed to have at least enough bytes and is
	147	* padded with spaces. Update it, taking care not to move the
	148	* \0 terminator, so that other strings in the string table
	149	* are not disturbed. See smbios_add_string()
	150	*/
	151	old_len = strnlen(ptr, SMBIOS_STR_MAX);
	152	len = strnlen(version, SMBIOS_STR_MAX);
	153	if (len > old_len)
	154	return log_ret(-ENOSPC);
	155
	156	log_debug("Replacing SMBIOS type 0 version string '%s'\n", ptr);
	157	memcpy(ptr, version, len);
	158	#ifdef LOG_DEBUG
	159	print_buffer((ulong)ptr, ptr, 1, old_len + 1, 0);
	160	#endif
	161
	162	return 0;
0c95fff3 SG	163	}
0c95fff3 SG	164
721e992a BM	165	/**
	166	* smbios_string_table_len() - compute the string area size
	167	*
	168	* This computes the size of the string area including the string terminator.
	169	*
fd3b826d	170	* @ctx: SMBIOS context
721e992a BM	171	* @return: string area size
721e992a BM	172	*/
fd3b826d	173	static int smbios_string_table_len(const struct smbios_ctx *ctx)
721e992a	174	{
fd3b826d SG	175	/* Allow for the final \0 after all strings */
fd3b826d SG	176	return (ctx->next_ptr + 1) - ctx->eos;
721e992a BM	177	}
721e992a BM	178
1e8989ad SG	179	static int smbios_write_type0(ulong *current, int handle,
1e8989ad SG	180	struct smbios_ctx *ctx)
721e992a	181	{
a2505fc8	182	struct smbios_type0 *t;
721e992a BM	183	int len = sizeof(struct smbios_type0);
721e992a BM	184
a2505fc8	185	t = map_sysmem(*current, len);
721e992a BM	186	memset(t, 0, sizeof(struct smbios_type0));
721e992a BM	187	fill_smbios_header(t, SMBIOS_BIOS_INFORMATION, len, handle);
0c95fff3 SG	188	smbios_set_eos(ctx, t->eos);
0c95fff3 SG	189	t->vendor = smbios_add_string(ctx, "U-Boot");
e9adaa75 SG	190
	191	t->bios_ver = smbios_add_prop(ctx, "version");
	192	if (!t->bios_ver)
	193	t->bios_ver = smbios_add_string(ctx, PLAIN_VERSION);
	194	if (t->bios_ver)
	195	gd->smbios_version = ctx->last_str;
	196	log_debug("smbios_version = %p: '%s'\n", gd->smbios_version,
	197	gd->smbios_version);
	198	#ifdef LOG_DEBUG
	199	print_buffer((ulong)gd->smbios_version, gd->smbios_version,
	200	1, strlen(gd->smbios_version) + 1, 0);
	201	#endif
0c95fff3	202	t->bios_release_date = smbios_add_string(ctx, U_BOOT_DMI_DATE);
e663b350	203	#ifdef CONFIG_ROM_SIZE
721e992a	204	t->bios_rom_size = (CONFIG_ROM_SIZE / 65536) - 1;
e663b350	205	#endif
721e992a BM	206	t->bios_characteristics = BIOS_CHARACTERISTICS_PCI_SUPPORTED \|
	207	BIOS_CHARACTERISTICS_SELECTABLE_BOOT \|
	208	BIOS_CHARACTERISTICS_UPGRADEABLE;
	209	#ifdef CONFIG_GENERATE_ACPI_TABLE
	210	t->bios_characteristics_ext1 = BIOS_CHARACTERISTICS_EXT1_ACPI;
e663b350 AG	211	#endif
	212	#ifdef CONFIG_EFI_LOADER
	213	t->bios_characteristics_ext1 \|= BIOS_CHARACTERISTICS_EXT1_UEFI;
721e992a BM	214	#endif
721e992a BM	215	t->bios_characteristics_ext2 = BIOS_CHARACTERISTICS_EXT2_TARGET;
e663b350	216
7617f996 SG	217	/* bios_major_release has only one byte, so drop century */
	218	t->bios_major_release = U_BOOT_VERSION_NUM % 100;
	219	t->bios_minor_release = U_BOOT_VERSION_NUM_PATCH;
721e992a BM	220	t->ec_major_release = 0xff;
	221	t->ec_minor_release = 0xff;
	222
fd3b826d	223	len = t->length + smbios_string_table_len(ctx);
721e992a	224	*current += len;
a2505fc8	225	unmap_sysmem(t);
721e992a BM	226
	227	return len;
	228	}
	229
1e8989ad SG	230	static int smbios_write_type1(ulong *current, int handle,
1e8989ad SG	231	struct smbios_ctx *ctx)
721e992a	232	{
a2505fc8	233	struct smbios_type1 *t;
721e992a	234	int len = sizeof(struct smbios_type1);
00caae6d	235	char *serial_str = env_get("serial#");
721e992a	236
a2505fc8	237	t = map_sysmem(*current, len);
721e992a BM	238	memset(t, 0, sizeof(struct smbios_type1));
721e992a BM	239	fill_smbios_header(t, SMBIOS_SYSTEM_INFORMATION, len, handle);
0c95fff3 SG	240	smbios_set_eos(ctx, t->eos);
	241	t->manufacturer = smbios_add_prop(ctx, "manufacturer");
	242	t->product_name = smbios_add_prop(ctx, "product");
	243	t->version = smbios_add_prop(ctx, "version");
6fb580d7	244	if (serial_str) {
0c95fff3	245	t->serial_number = smbios_add_string(ctx, serial_str);
44ffb6f0 SG	246	strncpy((char *)t->uuid, serial_str, sizeof(t->uuid));
44ffb6f0 SG	247	} else {
0c95fff3	248	t->serial_number = smbios_add_prop(ctx, "serial");
6fb580d7	249	}
0c95fff3 SG	250	t->sku_number = smbios_add_prop(ctx, "sku");
0c95fff3 SG	251	t->family = smbios_add_prop(ctx, "family");
721e992a	252
fd3b826d	253	len = t->length + smbios_string_table_len(ctx);
721e992a	254	*current += len;
a2505fc8	255	unmap_sysmem(t);
721e992a BM	256
	257	return len;
	258	}
	259
1e8989ad SG	260	static int smbios_write_type2(ulong *current, int handle,
1e8989ad SG	261	struct smbios_ctx *ctx)
721e992a	262	{
a2505fc8	263	struct smbios_type2 *t;
721e992a BM	264	int len = sizeof(struct smbios_type2);
721e992a BM	265
a2505fc8	266	t = map_sysmem(*current, len);
721e992a BM	267	memset(t, 0, sizeof(struct smbios_type2));
721e992a BM	268	fill_smbios_header(t, SMBIOS_BOARD_INFORMATION, len, handle);
0c95fff3 SG	269	smbios_set_eos(ctx, t->eos);
	270	t->manufacturer = smbios_add_prop(ctx, "manufacturer");
	271	t->product_name = smbios_add_prop(ctx, "product");
	272	t->asset_tag_number = smbios_add_prop(ctx, "asset-tag");
721e992a BM	273	t->feature_flags = SMBIOS_BOARD_FEATURE_HOSTING;
	274	t->board_type = SMBIOS_BOARD_MOTHERBOARD;
	275
fd3b826d	276	len = t->length + smbios_string_table_len(ctx);
721e992a	277	*current += len;
a2505fc8	278	unmap_sysmem(t);
721e992a BM	279
	280	return len;
	281	}
	282
1e8989ad SG	283	static int smbios_write_type3(ulong *current, int handle,
1e8989ad SG	284	struct smbios_ctx *ctx)
721e992a	285	{
a2505fc8	286	struct smbios_type3 *t;
721e992a BM	287	int len = sizeof(struct smbios_type3);
721e992a BM	288
a2505fc8	289	t = map_sysmem(*current, len);
721e992a BM	290	memset(t, 0, sizeof(struct smbios_type3));
721e992a BM	291	fill_smbios_header(t, SMBIOS_SYSTEM_ENCLOSURE, len, handle);
0c95fff3 SG	292	smbios_set_eos(ctx, t->eos);
0c95fff3 SG	293	t->manufacturer = smbios_add_prop(ctx, "manufacturer");
721e992a BM	294	t->chassis_type = SMBIOS_ENCLOSURE_DESKTOP;
	295	t->bootup_state = SMBIOS_STATE_SAFE;
	296	t->power_supply_state = SMBIOS_STATE_SAFE;
	297	t->thermal_state = SMBIOS_STATE_SAFE;
	298	t->security_status = SMBIOS_SECURITY_NONE;
	299
fd3b826d	300	len = t->length + smbios_string_table_len(ctx);
721e992a	301	*current += len;
a2505fc8	302	unmap_sysmem(t);
721e992a BM	303
	304	return len;
	305	}
	306
1e8989ad SG	307	static void smbios_write_type4_dm(struct smbios_type4 *t,
1e8989ad SG	308	struct smbios_ctx *ctx)
96476206 AG	309	{
	310	u16 processor_family = SMBIOS_PROCESSOR_FAMILY_UNKNOWN;
	311	const char *vendor = "Unknown";
	312	const char *name = "Unknown";
	313
	314	#ifdef CONFIG_CPU
	315	char processor_name[49];
	316	char vendor_name[49];
78227d4e	317	struct udevice *cpu = NULL;
96476206	318
78227d4e SG	319	uclass_find_first_device(UCLASS_CPU, &cpu);
78227d4e SG	320	if (cpu) {
8a8d24bd	321	struct cpu_plat *plat = dev_get_parent_plat(cpu);
96476206 AG	322
	323	if (plat->family)
	324	processor_family = plat->family;
	325	t->processor_id[0] = plat->id[0];
	326	t->processor_id[1] = plat->id[1];
	327
78227d4e	328	if (!cpu_get_vendor(cpu, vendor_name, sizeof(vendor_name)))
96476206	329	vendor = vendor_name;
78227d4e	330	if (!cpu_get_desc(cpu, processor_name, sizeof(processor_name)))
96476206 AG	331	name = processor_name;
	332	}
	333	#endif
	334
	335	t->processor_family = processor_family;
0c95fff3 SG	336	t->processor_manufacturer = smbios_add_string(ctx, vendor);
0c95fff3 SG	337	t->processor_version = smbios_add_string(ctx, name);
96476206 AG	338	}
96476206 AG	339
1e8989ad SG	340	static int smbios_write_type4(ulong *current, int handle,
1e8989ad SG	341	struct smbios_ctx *ctx)
721e992a	342	{
a2505fc8	343	struct smbios_type4 *t;
721e992a	344	int len = sizeof(struct smbios_type4);
721e992a	345
a2505fc8	346	t = map_sysmem(*current, len);
721e992a BM	347	memset(t, 0, sizeof(struct smbios_type4));
721e992a BM	348	fill_smbios_header(t, SMBIOS_PROCESSOR_INFORMATION, len, handle);
0c95fff3	349	smbios_set_eos(ctx, t->eos);
721e992a	350	t->processor_type = SMBIOS_PROCESSOR_TYPE_CENTRAL;
1e8989ad	351	smbios_write_type4_dm(t, ctx);
721e992a BM	352	t->status = SMBIOS_PROCESSOR_STATUS_ENABLED;
	353	t->processor_upgrade = SMBIOS_PROCESSOR_UPGRADE_NONE;
	354	t->l1_cache_handle = 0xffff;
	355	t->l2_cache_handle = 0xffff;
	356	t->l3_cache_handle = 0xffff;
	357	t->processor_family2 = t->processor_family;
	358
fd3b826d	359	len = t->length + smbios_string_table_len(ctx);
721e992a	360	*current += len;
a2505fc8	361	unmap_sysmem(t);
721e992a BM	362
	363	return len;
	364	}
	365
1e8989ad SG	366	static int smbios_write_type32(ulong *current, int handle,
1e8989ad SG	367	struct smbios_ctx *ctx)
721e992a	368	{
a2505fc8	369	struct smbios_type32 *t;
721e992a BM	370	int len = sizeof(struct smbios_type32);
721e992a BM	371
a2505fc8	372	t = map_sysmem(*current, len);
721e992a BM	373	memset(t, 0, sizeof(struct smbios_type32));
721e992a BM	374	fill_smbios_header(t, SMBIOS_SYSTEM_BOOT_INFORMATION, len, handle);
0c95fff3	375	smbios_set_eos(ctx, t->eos);
721e992a BM	376
721e992a BM	377	*current += len;
a2505fc8	378	unmap_sysmem(t);
721e992a BM	379
	380	return len;
	381	}
	382
1e8989ad SG	383	static int smbios_write_type127(ulong *current, int handle,
1e8989ad SG	384	struct smbios_ctx *ctx)
721e992a	385	{
a2505fc8	386	struct smbios_type127 *t;
721e992a BM	387	int len = sizeof(struct smbios_type127);
721e992a BM	388
a2505fc8	389	t = map_sysmem(*current, len);
721e992a BM	390	memset(t, 0, sizeof(struct smbios_type127));
	391	fill_smbios_header(t, SMBIOS_END_OF_TABLE, len, handle);
	392
	393	*current += len;
a2505fc8	394	unmap_sysmem(t);
721e992a BM	395
	396	return len;
	397	}
	398
44ffb6f0	399	static struct smbios_write_method smbios_write_funcs[] = {
e9adaa75	400	{ smbios_write_type0, "bios", },
44ffb6f0 SG	401	{ smbios_write_type1, "system", },
	402	{ smbios_write_type2, "baseboard", },
	403	{ smbios_write_type3, "chassis", },
	404	{ smbios_write_type4, },
	405	{ smbios_write_type32, },
	406	{ smbios_write_type127 },
721e992a BM	407	};
721e992a BM	408
42fd8c19	409	ulong write_smbios_table(ulong addr)
721e992a	410	{
44ffb6f0	411	ofnode parent_node = ofnode_null();
721e992a	412	struct smbios_entry *se;
1e8989ad	413	struct smbios_ctx ctx;
a2505fc8	414	ulong table_addr;
42fd8c19	415	ulong tables;
721e992a BM	416	int len = 0;
	417	int max_struct_size = 0;
	418	int handle = 0;
	419	char *istart;
	420	int isize;
	421	int i;
	422
1e8989ad	423	ctx.node = ofnode_null();
78227d4e	424	if (IS_ENABLED(CONFIG_OF_CONTROL)) {
1e8989ad SG	425	uclass_first_device(UCLASS_SYSINFO, &ctx.dev);
	426	if (ctx.dev)
	427	parent_node = dev_read_subnode(ctx.dev, "smbios");
	428	} else {
	429	ctx.dev = NULL;
78227d4e SG	430	}
78227d4e SG	431
721e992a BM	432	/* 16 byte align the table address */
	433	addr = ALIGN(addr, 16);
	434
a2505fc8	435	se = map_sysmem(addr, sizeof(struct smbios_entry));
721e992a BM	436	memset(se, 0, sizeof(struct smbios_entry));
	437
	438	addr += sizeof(struct smbios_entry);
	439	addr = ALIGN(addr, 16);
	440	tables = addr;
	441
	442	/* populate minimum required tables */
	443	for (i = 0; i < ARRAY_SIZE(smbios_write_funcs); i++) {
44ffb6f0	444	const struct smbios_write_method *method;
44ffb6f0 SG	445	int tmp;
	446
	447	method = &smbios_write_funcs[i];
	448	if (IS_ENABLED(CONFIG_OF_CONTROL) && method->subnode_name)
1e8989ad SG	449	ctx.node = ofnode_find_subnode(parent_node,
	450	method->subnode_name);
	451	tmp = method->write((ulong *)&addr, handle++, &ctx);
60a4df32	452
721e992a BM	453	max_struct_size = max(max_struct_size, tmp);
	454	len += tmp;
	455	}
	456
	457	memcpy(se->anchor, "_SM_", 4);
	458	se->length = sizeof(struct smbios_entry);
	459	se->major_ver = SMBIOS_MAJOR_VER;
	460	se->minor_ver = SMBIOS_MINOR_VER;
	461	se->max_struct_size = max_struct_size;
	462	memcpy(se->intermediate_anchor, "_DMI_", 5);
	463	se->struct_table_length = len;
a2505fc8 SG	464
	465	/*
	466	* We must use a pointer here so things work correctly on sandbox. The
	467	* user of this table is not aware of the mapping of addresses to
	468	* sandbox's DRAM buffer.
	469	*/
	470	table_addr = (ulong)map_sysmem(tables, 0);
	471	if (sizeof(table_addr) > sizeof(u32) && table_addr > (ulong)UINT_MAX) {
	472	/*
	473	* We need to put this >32-bit pointer into the table but the
	474	* field is only 32 bits wide.
	475	*/
	476	printf("WARNING: SMBIOS table_address overflow %llx\n",
	477	(unsigned long long)table_addr);
	478	table_addr = 0;
	479	}
	480	se->struct_table_address = table_addr;
	481
721e992a BM	482	se->struct_count = handle;
	483
	484	/* calculate checksums */
	485	istart = (char *)se + SMBIOS_INTERMEDIATE_OFFSET;
	486	isize = sizeof(struct smbios_entry) - SMBIOS_INTERMEDIATE_OFFSET;
	487	se->intermediate_checksum = table_compute_checksum(istart, isize);
	488	se->checksum = table_compute_checksum(se, sizeof(struct smbios_entry));
a2505fc8	489	unmap_sysmem(se);
721e992a BM	490
	491	return addr;
	492	}