X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fseabios%2Fsrc%2Ffw%2Fsmbios.c;fp=qemu%2Froms%2Fseabios%2Fsrc%2Ffw%2Fsmbios.c;h=dba0541338cb278dc60306ab90b885ce1919e0b3;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git diff --git a/qemu/roms/seabios/src/fw/smbios.c b/qemu/roms/seabios/src/fw/smbios.c new file mode 100644 index 000000000..dba054133 --- /dev/null +++ b/qemu/roms/seabios/src/fw/smbios.c @@ -0,0 +1,585 @@ +// smbios table generation (on emulators) +// DO NOT ADD NEW FEATURES HERE. (See paravirt.c / biostables.c instead.) +// +// Copyright (C) 2008,2009 Kevin O'Connor +// 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); +}