--- /dev/null
+// smbios table generation (on emulators)
+// DO NOT ADD NEW FEATURES HERE. (See paravirt.c / biostables.c instead.)
+//
+// Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2006 Fabrice Bellard
+//
+// This file may be distributed under the terms of the GNU LGPLv3 license.
+
+#include "config.h" // CONFIG_*
+#include "malloc.h" // free
+#include "output.h" // dprintf
+#include "paravirt.h" // RamSize
+#include "romfile.h" // romfile_findprefix
+#include "std/smbios.h" // struct smbios_entry_point
+#include "string.h" // memset
+#include "util.h" // MaxCountCPUs
+#include "x86.h" // cpuid
+
+static void
+smbios_entry_point_setup(u16 max_structure_size,
+ u16 structure_table_length,
+ void *structure_table_address,
+ u16 number_of_structures)
+{
+ void *finaltable;
+ if (structure_table_length <= BUILD_MAX_SMBIOS_FSEG)
+ // Table is small enough for f-seg - allocate there. This
+ // works around a bug in JunOS (at least for small SMBIOS tables).
+ finaltable = malloc_fseg(structure_table_length);
+ else
+ finaltable = malloc_high(structure_table_length);
+ if (!finaltable) {
+ warn_noalloc();
+ return;
+ }
+ memcpy(finaltable, structure_table_address, structure_table_length);
+
+ struct smbios_entry_point ep;
+ memset(&ep, 0, sizeof(ep));
+ memcpy(ep.anchor_string, "_SM_", 4);
+ ep.length = 0x1f;
+ ep.smbios_major_version = 2;
+ ep.smbios_minor_version = 4;
+ ep.max_structure_size = max_structure_size;
+ memcpy(ep.intermediate_anchor_string, "_DMI_", 5);
+
+ ep.structure_table_length = structure_table_length;
+ ep.structure_table_address = (u32)finaltable;
+ ep.number_of_structures = number_of_structures;
+ ep.smbios_bcd_revision = 0x24;
+
+ ep.checksum -= checksum(&ep, 0x10);
+
+ ep.intermediate_checksum -= checksum((void*)&ep + 0x10, ep.length - 0x10);
+
+ copy_smbios(&ep);
+}
+
+static int
+get_field(int type, int offset, void *dest)
+{
+ char name[128];
+ snprintf(name, sizeof(name), "smbios/field%d-%d", type, offset);
+ struct romfile_s *file = romfile_find(name);
+ if (!file)
+ return 0;
+ file->copy(file, dest, file->size);
+ return file->size;
+}
+
+static int
+get_external(int type, char **p, unsigned *nr_structs,
+ unsigned *max_struct_size, char *end)
+{
+ static u64 used_bitmap[4] = { 0 };
+ char *start = *p;
+
+ /* Check if we've already reported these tables */
+ if (used_bitmap[(type >> 6) & 0x3] & (1ULL << (type & 0x3f)))
+ return 1;
+
+ /* Don't introduce spurious end markers */
+ if (type == 127)
+ return 0;
+
+ char prefix[128];
+ snprintf(prefix, sizeof(prefix), "smbios/table%d-", type);
+ struct romfile_s *file = NULL;
+ for (;;) {
+ file = romfile_findprefix(prefix, file);
+ if (!file)
+ break;
+
+ if (end - *p < file->size) {
+ warn_noalloc();
+ break;
+ }
+
+ struct smbios_structure_header *header = (void*)*p;
+ file->copy(file, header, file->size);
+ *p += file->size;
+
+ /* Entries end with a double NULL char, if there's a string at
+ * the end (length is greater than formatted length), the string
+ * terminator provides the first NULL. */
+ *((u8*)*p) = 0;
+ (*p)++;
+ if (header->length >= file->size) {
+ *((u8*)*p) = 0;
+ (*p)++;
+ }
+
+ (*nr_structs)++;
+ if (*p - (char*)header > *max_struct_size)
+ *max_struct_size = *p - (char*)header;
+ }
+
+ if (start == *p)
+ return 0;
+
+ /* Mark that we've reported on this type */
+ used_bitmap[(type >> 6) & 0x3] |= (1ULL << (type & 0x3f));
+ return 1;
+}
+
+#define load_str_field_with_default(type, field, def) \
+ do { \
+ size = get_field(type, offsetof(struct smbios_type_##type, \
+ field), end); \
+ if (size == 1) { \
+ /* zero-length string, skip to avoid bogus end marker */ \
+ p->field = 0; \
+ } else if (size > 1) { \
+ end += size; \
+ p->field = ++str_index; \
+ } else { \
+ memcpy(end, def, sizeof(def)); \
+ end += sizeof(def); \
+ p->field = ++str_index; \
+ } \
+ } while (0)
+
+#define load_str_field_or_skip(type, field) \
+ do { \
+ size = get_field(type, offsetof(struct smbios_type_##type, \
+ field), end); \
+ if (size > 1) { \
+ end += size; \
+ p->field = ++str_index; \
+ } else { \
+ p->field = 0; \
+ } \
+ } while (0)
+
+#define set_field_with_default(type, field, def) \
+ do { \
+ if (!get_field(type, offsetof(struct smbios_type_##type, \
+ field), &p->field)) { \
+ p->field = def; \
+ } \
+ } while (0)
+
+/* Type 0 -- BIOS Information */
+#define RELEASE_DATE_STR "01/01/2011"
+static void *
+smbios_init_type_0(void *start)
+{
+ struct smbios_type_0 *p = (struct smbios_type_0 *)start;
+ char *end = (char *)start + sizeof(struct smbios_type_0);
+ size_t size;
+ int str_index = 0;
+
+ p->header.type = 0;
+ p->header.length = sizeof(struct smbios_type_0);
+ p->header.handle = 0;
+
+ load_str_field_with_default(0, vendor_str, BUILD_APPNAME);
+ load_str_field_with_default(0, bios_version_str, BUILD_APPNAME);
+
+ p->bios_starting_address_segment = 0xe800;
+
+ load_str_field_with_default(0, bios_release_date_str, RELEASE_DATE_STR);
+
+ p->bios_rom_size = 0; /* FIXME */
+
+ if (!get_field(0, offsetof(struct smbios_type_0, bios_characteristics),
+ &p->bios_characteristics)) {
+ memset(p->bios_characteristics, 0, 8);
+ /* BIOS characteristics not supported */
+ p->bios_characteristics[0] = 0x08;
+ }
+
+ if (!get_field(0, offsetof(struct smbios_type_0,
+ bios_characteristics_extension_bytes),
+ &p->bios_characteristics_extension_bytes)) {
+ p->bios_characteristics_extension_bytes[0] = 0;
+ /* Enable targeted content distribution. Needed for SVVP */
+ p->bios_characteristics_extension_bytes[1] = 4;
+ }
+
+ set_field_with_default(0, system_bios_major_release, 1);
+ set_field_with_default(0, system_bios_minor_release, 0);
+ set_field_with_default(0, embedded_controller_major_release, 0xff);
+ set_field_with_default(0, embedded_controller_minor_release, 0xff);
+
+ *end = 0;
+ end++;
+
+ return end;
+}
+
+/* Type 1 -- System Information */
+static void *
+smbios_init_type_1(void *start)
+{
+ struct smbios_type_1 *p = (struct smbios_type_1 *)start;
+ char *end = (char *)start + sizeof(struct smbios_type_1);
+ size_t size;
+ int str_index = 0;
+
+ p->header.type = 1;
+ p->header.length = sizeof(struct smbios_type_1);
+ p->header.handle = 0x100;
+
+ load_str_field_with_default(1, manufacturer_str, BUILD_APPNAME);
+ load_str_field_with_default(1, product_name_str, BUILD_APPNAME);
+ load_str_field_or_skip(1, version_str);
+ load_str_field_or_skip(1, serial_number_str);
+
+ if (!get_field(1, offsetof(struct smbios_type_1, uuid), &p->uuid))
+ memset(p->uuid, 0, 16);
+
+ set_field_with_default(1, wake_up_type, 0x06); /* power switch */
+
+ load_str_field_or_skip(1, sku_number_str);
+ load_str_field_or_skip(1, family_str);
+
+ *end = 0;
+ end++;
+ if (!str_index) {
+ *end = 0;
+ end++;
+ }
+
+ return end;
+}
+
+/* Type 3 -- System Enclosure */
+static void *
+smbios_init_type_3(void *start)
+{
+ struct smbios_type_3 *p = (struct smbios_type_3 *)start;
+ char *end = (char *)start + sizeof(struct smbios_type_3);
+ size_t size;
+ int str_index = 0;
+
+ p->header.type = 3;
+ p->header.length = sizeof(struct smbios_type_3);
+ p->header.handle = 0x300;
+
+ load_str_field_with_default(3, manufacturer_str, BUILD_APPNAME);
+ set_field_with_default(3, type, 0x01); /* other */
+
+ load_str_field_or_skip(3, version_str);
+ load_str_field_or_skip(3, serial_number_str);
+ load_str_field_or_skip(3, asset_tag_number_str);
+
+ set_field_with_default(3, boot_up_state, 0x03); /* safe */
+ set_field_with_default(3, power_supply_state, 0x03); /* safe */
+ set_field_with_default(3, thermal_state, 0x03); /* safe */
+ set_field_with_default(3, security_status, 0x02); /* unknown */
+
+ set_field_with_default(3, oem_defined, 0);
+ set_field_with_default(3, height, 0);
+ set_field_with_default(3, number_of_power_cords, 0);
+ set_field_with_default(3, contained_element_count, 0);
+
+ *end = 0;
+ end++;
+ if (!str_index) {
+ *end = 0;
+ end++;
+ }
+
+ return end;
+}
+
+/* Type 4 -- Processor Information */
+static void *
+smbios_init_type_4(void *start, unsigned int cpu_number)
+{
+ struct smbios_type_4 *p = (struct smbios_type_4 *)start;
+ char *end = (char *)start + sizeof(struct smbios_type_4);
+ size_t size;
+ int str_index = 0;
+ char name[1024];
+
+ p->header.type = 4;
+ p->header.length = sizeof(struct smbios_type_4);
+ p->header.handle = 0x400 + cpu_number;
+
+ size = get_field(4, offsetof(struct smbios_type_4, socket_designation_str),
+ name);
+ if (size)
+ snprintf(name + size - 1, sizeof(name) - size, "%2x", cpu_number);
+ else
+ snprintf(name, sizeof(name), "CPU%2x", cpu_number);
+
+ memcpy(end, name, strlen(name) + 1);
+ end += strlen(name) + 1;
+ p->socket_designation_str = ++str_index;
+
+ set_field_with_default(4, processor_type, 0x03); /* CPU */
+ set_field_with_default(4, processor_family, 0x01); /* other */
+
+ load_str_field_with_default(4, processor_manufacturer_str, BUILD_APPNAME);
+
+ if (!get_field(4, offsetof(struct smbios_type_4, processor_id)
+ , p->processor_id)) {
+ u32 cpuid_signature, ebx, ecx, cpuid_features;
+ cpuid(1, &cpuid_signature, &ebx, &ecx, &cpuid_features);
+ p->processor_id[0] = cpuid_signature;
+ p->processor_id[1] = cpuid_features;
+ }
+
+ load_str_field_or_skip(4, processor_version_str);
+ set_field_with_default(4, voltage, 0);
+ set_field_with_default(4, external_clock, 0);
+
+ set_field_with_default(4, max_speed, 2000);
+ set_field_with_default(4, current_speed, 2000);
+
+ set_field_with_default(4, status, 0x41); /* socket populated, CPU enabled */
+ set_field_with_default(4, processor_upgrade, 0x01); /* other */
+
+ /* cache information structure not provided */
+ p->l1_cache_handle = 0xffff;
+ p->l2_cache_handle = 0xffff;
+ p->l3_cache_handle = 0xffff;
+
+ *end = 0;
+ end++;
+ if (!str_index) {
+ *end = 0;
+ end++;
+ }
+
+ return end;
+}
+
+/* Type 16 -- Physical Memory Array */
+static void *
+smbios_init_type_16(void *start, u32 memory_size_mb, int nr_mem_devs)
+{
+ struct smbios_type_16 *p = (struct smbios_type_16*)start;
+
+ p->header.type = 16;
+ p->header.length = sizeof(struct smbios_type_16);
+ p->header.handle = 0x1000;
+
+ set_field_with_default(16, location, 0x01); /* other */
+ set_field_with_default(16, use, 0x03); /* system memory */
+ /* Multi-bit ECC to make Microsoft happy */
+ set_field_with_default(16, error_correction, 0x06);
+ /* 0x80000000 = unknown, accept sizes < 2TB - TODO multiple arrays */
+ p->maximum_capacity = memory_size_mb < 2 << 20 ?
+ memory_size_mb << 10 : 0x80000000;
+ p->memory_error_information_handle = 0xfffe; /* none provided */
+ p->number_of_memory_devices = nr_mem_devs;
+
+ start += sizeof(struct smbios_type_16);
+ *((u16 *)start) = 0;
+
+ return start + 2;
+}
+
+/* Type 17 -- Memory Device */
+static void *
+smbios_init_type_17(void *start, u32 size_mb, int instance)
+{
+ struct smbios_type_17 *p = (struct smbios_type_17 *)start;
+ char *end = (char *)start + sizeof(struct smbios_type_17);
+ size_t size;
+ int str_index = 0;
+ char name[1024];
+
+ p->header.type = 17;
+ p->header.length = sizeof(struct smbios_type_17);
+ p->header.handle = 0x1100 + instance;
+
+ p->physical_memory_array_handle = 0x1000;
+ set_field_with_default(17, total_width, 64);
+ set_field_with_default(17, data_width, 64);
+/* TODO: should assert in case something is wrong ASSERT((memory_size_mb & ~0x7fff) == 0); */
+ p->size = size_mb;
+ set_field_with_default(17, form_factor, 0x09); /* DIMM */
+ p->device_set = 0;
+
+ size = get_field(17, offsetof(struct smbios_type_17, device_locator_str),
+ name);
+ if (size)
+ snprintf(name + size - 1, sizeof(name) - size, "%d", instance);
+ else
+ snprintf(name, sizeof(name), "DIMM %d", instance);
+
+ memcpy(end, name, strlen(name) + 1);
+ end += strlen(name) + 1;
+ p->device_locator_str = ++str_index;
+
+ load_str_field_or_skip(17, bank_locator_str);
+ set_field_with_default(17, memory_type, 0x07); /* RAM */
+ set_field_with_default(17, type_detail, 0);
+
+ *end = 0;
+ end++;
+ if (!str_index) {
+ *end = 0;
+ end++;
+ }
+
+ return end;
+}
+
+/* Type 19 -- Memory Array Mapped Address */
+static void *
+smbios_init_type_19(void *start, u32 start_mb, u32 size_mb, int instance)
+{
+ struct smbios_type_19 *p = (struct smbios_type_19 *)start;
+
+ p->header.type = 19;
+ p->header.length = sizeof(struct smbios_type_19);
+ p->header.handle = 0x1300 + instance;
+
+ p->starting_address = start_mb << 10;
+ p->ending_address = p->starting_address + (size_mb << 10) - 1;
+ p->memory_array_handle = 0x1000;
+ p->partition_width = 1;
+
+ start += sizeof(struct smbios_type_19);
+ *((u16 *)start) = 0;
+
+ return start + 2;
+}
+
+/* Type 20 -- Memory Device Mapped Address */
+static void *
+smbios_init_type_20(void *start, u32 start_mb, u32 size_mb, int instance,
+ int dev_handle, int array_handle)
+{
+ struct smbios_type_20 *p = (struct smbios_type_20 *)start;
+
+ p->header.type = 20;
+ p->header.length = sizeof(struct smbios_type_20);
+ p->header.handle = 0x1400 + instance;
+
+ p->starting_address = start_mb << 10;
+ p->ending_address = p->starting_address + (size_mb << 10) - 1;
+ p->memory_device_handle = 0x1100 + dev_handle;
+ p->memory_array_mapped_address_handle = 0x1300 + array_handle;
+ p->partition_row_position = 1;
+ p->interleave_position = 0;
+ p->interleaved_data_depth = 0;
+
+ start += sizeof(struct smbios_type_20);
+
+ *((u16 *)start) = 0;
+ return start+2;
+}
+
+/* Type 32 -- System Boot Information */
+static void *
+smbios_init_type_32(void *start)
+{
+ struct smbios_type_32 *p = (struct smbios_type_32 *)start;
+
+ p->header.type = 32;
+ p->header.length = sizeof(struct smbios_type_32);
+ p->header.handle = 0x2000;
+ memset(p->reserved, 0, 6);
+ set_field_with_default(32, boot_status, 0); /* no errors detected */
+
+ start += sizeof(struct smbios_type_32);
+ *((u16 *)start) = 0;
+
+ return start+2;
+}
+
+/* Type 127 -- End of Table */
+static void *
+smbios_init_type_127(void *start)
+{
+ struct smbios_type_127 *p = (struct smbios_type_127 *)start;
+
+ p->header.type = 127;
+ p->header.length = sizeof(struct smbios_type_127);
+ p->header.handle = 0x7f00;
+
+ start += sizeof(struct smbios_type_127);
+ *((u16 *)start) = 0;
+
+ return start + 2;
+}
+
+#define TEMPSMBIOSSIZE (32 * 1024)
+
+void
+smbios_legacy_setup(void)
+{
+ if (! CONFIG_SMBIOS)
+ return;
+
+ dprintf(3, "init SMBIOS tables\n");
+
+ char *start = malloc_tmphigh(TEMPSMBIOSSIZE);
+ if (! start) {
+ warn_noalloc();
+ return;
+ }
+ memset(start, 0, TEMPSMBIOSSIZE);
+
+ u32 nr_structs = 0, max_struct_size = 0;
+ char *q, *p = start;
+ char *end = start + TEMPSMBIOSSIZE - sizeof(struct smbios_type_127);
+
+#define add_struct(type, args...) \
+ do { \
+ if (!get_external(type, &p, &nr_structs, &max_struct_size, end)) { \
+ q = smbios_init_type_##type(args); \
+ nr_structs++; \
+ if ((q - p) > max_struct_size) \
+ max_struct_size = q - p; \
+ p = q; \
+ } \
+ } while (0)
+
+ add_struct(0, p);
+ add_struct(1, p);
+ add_struct(3, p);
+
+ int cpu_num;
+ for (cpu_num = 1; cpu_num <= MaxCountCPUs; cpu_num++)
+ add_struct(4, p, cpu_num);
+
+ int ram_mb = (RamSize + RamSizeOver4G) >> 20;
+ int nr_mem_devs = (ram_mb + 0x3fff) >> 14;
+ add_struct(16, p, ram_mb, nr_mem_devs);
+
+ int i, j;
+ for (i = 0; i < nr_mem_devs; i++) {
+ u32 dev_mb = ((i == (nr_mem_devs - 1))
+ ? (((ram_mb - 1) & 0x3fff) + 1)
+ : 16384);
+ add_struct(17, p, dev_mb, i);
+ }
+
+ add_struct(19, p, 0, RamSize >> 20, 0);
+ if (RamSizeOver4G)
+ add_struct(19, p, 4096, RamSizeOver4G >> 20, 1);
+
+ add_struct(20, p, 0, RamSize >> 20, 0, 0, 0);
+ if (RamSizeOver4G) {
+ u32 start_mb = 4096;
+ for (j = 1, i = 0; i < nr_mem_devs; i++, j++) {
+ u32 dev_mb = ((i == (nr_mem_devs - 1))
+ ? (((ram_mb - 1) & 0x3fff) + 1)
+ : 16384);
+ if (i == 0)
+ dev_mb -= RamSize >> 20;
+
+ add_struct(20, p, start_mb, dev_mb, j, i, 1);
+ start_mb += dev_mb;
+ }
+ }
+
+ add_struct(32, p);
+ /* Add any remaining provided entries before the end marker */
+ for (i = 0; i < 256; i++)
+ get_external(i, &p, &nr_structs, &max_struct_size, end);
+ add_struct(127, p);
+
+#undef add_struct
+
+ smbios_entry_point_setup(max_struct_size, p - start, start, nr_structs);
+ free(start);
+}
Code Review / kvmfornfv.git / blobdiff