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qemu/hw/smbios/smbios.c
Markus Armbruster 668f62ec62 error: Eliminate error_propagate() with Coccinelle, part 1 
When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right away.  Convert

    if (!foo(..., &err)) {
        ...
        error_propagate(errp, err);
        ...
        return ...
    }

to

    if (!foo(..., errp)) {
        ...
        ...
        return ...
    }

where nothing else needs @err.  Coccinelle script:

    @rule1 forall@
    identifier fun, err, errp, lbl;
    expression list args, args2;
    binary operator op;
    constant c1, c2;
    symbol false;
    @@
         if (
    (
    -        fun(args, &err, args2)
    +        fun(args, errp, args2)
    |
    -        !fun(args, &err, args2)
    +        !fun(args, errp, args2)
    |
    -        fun(args, &err, args2) op c1
    +        fun(args, errp, args2) op c1
    )
            )
         {
             ... when != err
                 when != lbl:
                 when strict
    -        error_propagate(errp, err);
             ... when != err
    (
             return;
    |
             return c2;
    |
             return false;
    )
         }

    @rule2 forall@
    identifier fun, err, errp, lbl;
    expression list args, args2;
    expression var;
    binary operator op;
    constant c1, c2;
    symbol false;
    @@
    -    var = fun(args, &err, args2);
    +    var = fun(args, errp, args2);
         ... when != err
         if (
    (
             var
    |
             !var
    |
             var op c1
    )
            )
         {
             ... when != err
                 when != lbl:
                 when strict
    -        error_propagate(errp, err);
             ... when != err
    (
             return;
    |
             return c2;
    |
             return false;
    |
             return var;
    )
         }

    @depends on rule1 || rule2@
    identifier err;
    @@
    -    Error *err = NULL;
         ... when != err

Not exactly elegant, I'm afraid.

The "when != lbl:" is necessary to avoid transforming

         if (fun(args, &err)) {
             goto out
         }
         ...
     out:
         error_propagate(errp, err);

even though other paths to label out still need the error_propagate().
For an actual example, see sclp_realize().

Without the "when strict", Coccinelle transforms vfio_msix_setup(),
incorrectly.  I don't know what exactly "when strict" does, only that
it helps here.

The match of return is narrower than what I want, but I can't figure
out how to express "return where the operand doesn't use @err".  For
an example where it's too narrow, see vfio_intx_enable().

Silently fails to convert hw/arm/armsse.c, because Coccinelle gets
confused by ARMSSE being used both as typedef and function-like macro
there.  Converted manually.

Line breaks tidied up manually.  One nested declaration of @local_err
deleted manually.  Preexisting unwanted blank line dropped in
hw/riscv/sifive_e.c.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-35-armbru@redhat.com>
2020-07-10 15:18:08 +02:00

1148 lines
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/*
* SMBIOS Support
*
* Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
* Copyright (C) 2013 Red Hat, Inc.
*
* Authors:
* Alex Williamson <alex.williamson@hp.com>
* Markus Armbruster <armbru@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*
* Contributions after 2012-01-13 are licensed under the terms of the
* GNU GPL, version 2 or (at your option) any later version.
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "qemu/config-file.h"
#include "qemu/error-report.h"
#include "qemu/module.h"
#include "qemu/option.h"
#include "sysemu/sysemu.h"
#include "qemu/uuid.h"
#include "hw/firmware/smbios.h"
#include "hw/loader.h"
#include "hw/boards.h"
#include "smbios_build.h"
/* legacy structures and constants for <= 2.0 machines */
struct smbios_header {
uint16_t length;
uint8_t type;
} QEMU_PACKED;
struct smbios_field {
struct smbios_header header;
uint8_t type;
uint16_t offset;
uint8_t data[];
} QEMU_PACKED;
struct smbios_table {
struct smbios_header header;
uint8_t data[];
} QEMU_PACKED;
#define SMBIOS_FIELD_ENTRY 0
#define SMBIOS_TABLE_ENTRY 1
static uint8_t *smbios_entries;
static size_t smbios_entries_len;
static bool smbios_legacy = true;
static bool smbios_uuid_encoded = true;
/* end: legacy structures & constants for <= 2.0 machines */
uint8_t *smbios_tables;
size_t smbios_tables_len;
unsigned smbios_table_max;
unsigned smbios_table_cnt;
static SmbiosEntryPointType smbios_ep_type = SMBIOS_ENTRY_POINT_21;
static SmbiosEntryPoint ep;
static int smbios_type4_count = 0;
static bool smbios_immutable;
static bool smbios_have_defaults;
static uint32_t smbios_cpuid_version, smbios_cpuid_features, smbios_smp_sockets;
static DECLARE_BITMAP(have_binfile_bitmap, SMBIOS_MAX_TYPE+1);
static DECLARE_BITMAP(have_fields_bitmap, SMBIOS_MAX_TYPE+1);
static struct {
const char *vendor, *version, *date;
bool have_major_minor, uefi;
uint8_t major, minor;
} type0;
static struct {
const char *manufacturer, *product, *version, *serial, *sku, *family;
/* uuid is in qemu_uuid */
} type1;
static struct {
const char *manufacturer, *product, *version, *serial, *asset, *location;
} type2;
static struct {
const char *manufacturer, *version, *serial, *asset, *sku;
} type3;
static struct {
const char *sock_pfx, *manufacturer, *version, *serial, *asset, *part;
} type4;
static struct {
size_t nvalues;
const char **values;
} type11;
static struct {
const char *loc_pfx, *bank, *manufacturer, *serial, *asset, *part;
uint16_t speed;
} type17;
static QemuOptsList qemu_smbios_opts = {
.name = "smbios",
.head = QTAILQ_HEAD_INITIALIZER(qemu_smbios_opts.head),
.desc = {
/*
* no elements => accept any params
* validation will happen later
*/
{ /* end of list */ }
}
};
static const QemuOptDesc qemu_smbios_file_opts[] = {
{
.name = "file",
.type = QEMU_OPT_STRING,
.help = "binary file containing an SMBIOS element",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type0_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "vendor",
.type = QEMU_OPT_STRING,
.help = "vendor name",
},{
.name = "version",
.type = QEMU_OPT_STRING,
.help = "version number",
},{
.name = "date",
.type = QEMU_OPT_STRING,
.help = "release date",
},{
.name = "release",
.type = QEMU_OPT_STRING,
.help = "revision number",
},{
.name = "uefi",
.type = QEMU_OPT_BOOL,
.help = "uefi support",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type1_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "manufacturer",
.type = QEMU_OPT_STRING,
.help = "manufacturer name",
},{
.name = "product",
.type = QEMU_OPT_STRING,
.help = "product name",
},{
.name = "version",
.type = QEMU_OPT_STRING,
.help = "version number",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
.help = "serial number",
},{
.name = "uuid",
.type = QEMU_OPT_STRING,
.help = "UUID",
},{
.name = "sku",
.type = QEMU_OPT_STRING,
.help = "SKU number",
},{
.name = "family",
.type = QEMU_OPT_STRING,
.help = "family name",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type2_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "manufacturer",
.type = QEMU_OPT_STRING,
.help = "manufacturer name",
},{
.name = "product",
.type = QEMU_OPT_STRING,
.help = "product name",
},{
.name = "version",
.type = QEMU_OPT_STRING,
.help = "version number",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
.help = "serial number",
},{
.name = "asset",
.type = QEMU_OPT_STRING,
.help = "asset tag number",
},{
.name = "location",
.type = QEMU_OPT_STRING,
.help = "location in chassis",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type3_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "manufacturer",
.type = QEMU_OPT_STRING,
.help = "manufacturer name",
},{
.name = "version",
.type = QEMU_OPT_STRING,
.help = "version number",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
.help = "serial number",
},{
.name = "asset",
.type = QEMU_OPT_STRING,
.help = "asset tag number",
},{
.name = "sku",
.type = QEMU_OPT_STRING,
.help = "SKU number",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type4_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "sock_pfx",
.type = QEMU_OPT_STRING,
.help = "socket designation string prefix",
},{
.name = "manufacturer",
.type = QEMU_OPT_STRING,
.help = "manufacturer name",
},{
.name = "version",
.type = QEMU_OPT_STRING,
.help = "version number",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
.help = "serial number",
},{
.name = "asset",
.type = QEMU_OPT_STRING,
.help = "asset tag number",
},{
.name = "part",
.type = QEMU_OPT_STRING,
.help = "part number",
},
{ /* end of list */ }
};
static const QemuOptDesc qemu_smbios_type11_opts[] = {
{
.name = "value",
.type = QEMU_OPT_STRING,
.help = "OEM string data",
},
};
static const QemuOptDesc qemu_smbios_type17_opts[] = {
{
.name = "type",
.type = QEMU_OPT_NUMBER,
.help = "SMBIOS element type",
},{
.name = "loc_pfx",
.type = QEMU_OPT_STRING,
.help = "device locator string prefix",
},{
.name = "bank",
.type = QEMU_OPT_STRING,
.help = "bank locator string",
},{
.name = "manufacturer",
.type = QEMU_OPT_STRING,
.help = "manufacturer name",
},{
.name = "serial",
.type = QEMU_OPT_STRING,
.help = "serial number",
},{
.name = "asset",
.type = QEMU_OPT_STRING,
.help = "asset tag number",
},{
.name = "part",
.type = QEMU_OPT_STRING,
.help = "part number",
},{
.name = "speed",
.type = QEMU_OPT_NUMBER,
.help = "maximum capable speed",
},
{ /* end of list */ }
};
static void smbios_register_config(void)
{
qemu_add_opts(&qemu_smbios_opts);
}
opts_init(smbios_register_config);
static void smbios_validate_table(MachineState *ms)
{
uint32_t expect_t4_count = smbios_legacy ?
ms->smp.cpus : smbios_smp_sockets;
if (smbios_type4_count && smbios_type4_count != expect_t4_count) {
error_report("Expected %d SMBIOS Type 4 tables, got %d instead",
expect_t4_count, smbios_type4_count);
exit(1);
}
}
/* legacy setup functions for <= 2.0 machines */
static void smbios_add_field(int type, int offset, const void *data, size_t len)
{
struct smbios_field *field;
if (!smbios_entries) {
smbios_entries_len = sizeof(uint16_t);
smbios_entries = g_malloc0(smbios_entries_len);
}
smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
sizeof(*field) + len);
field = (struct smbios_field *)(smbios_entries + smbios_entries_len);
field->header.type = SMBIOS_FIELD_ENTRY;
field->header.length = cpu_to_le16(sizeof(*field) + len);
field->type = type;
field->offset = cpu_to_le16(offset);
memcpy(field->data, data, len);
smbios_entries_len += sizeof(*field) + len;
(*(uint16_t *)smbios_entries) =
cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
}
static void smbios_maybe_add_str(int type, int offset, const char *data)
{
if (data) {
smbios_add_field(type, offset, data, strlen(data) + 1);
}
}
static void smbios_build_type_0_fields(void)
{
smbios_maybe_add_str(0, offsetof(struct smbios_type_0, vendor_str),
type0.vendor);
smbios_maybe_add_str(0, offsetof(struct smbios_type_0, bios_version_str),
type0.version);
smbios_maybe_add_str(0, offsetof(struct smbios_type_0,
bios_release_date_str),
type0.date);
if (type0.have_major_minor) {
smbios_add_field(0, offsetof(struct smbios_type_0,
system_bios_major_release),
&type0.major, 1);
smbios_add_field(0, offsetof(struct smbios_type_0,
system_bios_minor_release),
&type0.minor, 1);
}
}
static void smbios_build_type_1_fields(void)
{
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, manufacturer_str),
type1.manufacturer);
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, product_name_str),
type1.product);
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, version_str),
type1.version);
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, serial_number_str),
type1.serial);
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, sku_number_str),
type1.sku);
smbios_maybe_add_str(1, offsetof(struct smbios_type_1, family_str),
type1.family);
if (qemu_uuid_set) {
/* We don't encode the UUID in the "wire format" here because this
* function is for legacy mode and needs to keep the guest ABI, and
* because we don't know what's the SMBIOS version advertised by the
* BIOS.
*/
smbios_add_field(1, offsetof(struct smbios_type_1, uuid),
&qemu_uuid, 16);
}
}
uint8_t *smbios_get_table_legacy(MachineState *ms, size_t *length)
{
if (!smbios_legacy) {
*length = 0;
return NULL;
}
if (!smbios_immutable) {
smbios_build_type_0_fields();
smbios_build_type_1_fields();
smbios_validate_table(ms);
smbios_immutable = true;
}
*length = smbios_entries_len;
return smbios_entries;
}
/* end: legacy setup functions for <= 2.0 machines */
bool smbios_skip_table(uint8_t type, bool required_table)
{
if (test_bit(type, have_binfile_bitmap)) {
return true; /* user provided their own binary blob(s) */
}
if (test_bit(type, have_fields_bitmap)) {
return false; /* user provided fields via command line */
}
if (smbios_have_defaults && required_table) {
return false; /* we're building tables, and this one's required */
}
return true;
}
static void smbios_build_type_0_table(void)
{
SMBIOS_BUILD_TABLE_PRE(0, 0x000, false); /* optional, leave up to BIOS */
SMBIOS_TABLE_SET_STR(0, vendor_str, type0.vendor);
SMBIOS_TABLE_SET_STR(0, bios_version_str, type0.version);
t->bios_starting_address_segment = cpu_to_le16(0xE800); /* from SeaBIOS */
SMBIOS_TABLE_SET_STR(0, bios_release_date_str, type0.date);
t->bios_rom_size = 0; /* hardcoded in SeaBIOS with FIXME comment */
t->bios_characteristics = cpu_to_le64(0x08); /* Not supported */
t->bios_characteristics_extension_bytes[0] = 0;
t->bios_characteristics_extension_bytes[1] = 0x14; /* TCD/SVVP | VM */
if (type0.uefi) {
t->bios_characteristics_extension_bytes[1] |= 0x08; /* |= UEFI */
}
if (type0.have_major_minor) {
t->system_bios_major_release = type0.major;
t->system_bios_minor_release = type0.minor;
} else {
t->system_bios_major_release = 0;
t->system_bios_minor_release = 0;
}
/* hardcoded in SeaBIOS */
t->embedded_controller_major_release = 0xFF;
t->embedded_controller_minor_release = 0xFF;
SMBIOS_BUILD_TABLE_POST;
}
/* Encode UUID from the big endian encoding described on RFC4122 to the wire
* format specified by SMBIOS version 2.6.
*/
static void smbios_encode_uuid(struct smbios_uuid *uuid, QemuUUID *in)
{
memcpy(uuid, in, 16);
if (smbios_uuid_encoded) {
uuid->time_low = bswap32(uuid->time_low);
uuid->time_mid = bswap16(uuid->time_mid);
uuid->time_hi_and_version = bswap16(uuid->time_hi_and_version);
}
}
static void smbios_build_type_1_table(void)
{
SMBIOS_BUILD_TABLE_PRE(1, 0x100, true); /* required */
SMBIOS_TABLE_SET_STR(1, manufacturer_str, type1.manufacturer);
SMBIOS_TABLE_SET_STR(1, product_name_str, type1.product);
SMBIOS_TABLE_SET_STR(1, version_str, type1.version);
SMBIOS_TABLE_SET_STR(1, serial_number_str, type1.serial);
if (qemu_uuid_set) {
smbios_encode_uuid(&t->uuid, &qemu_uuid);
} else {
memset(&t->uuid, 0, 16);
}
t->wake_up_type = 0x06; /* power switch */
SMBIOS_TABLE_SET_STR(1, sku_number_str, type1.sku);
SMBIOS_TABLE_SET_STR(1, family_str, type1.family);
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_2_table(void)
{
SMBIOS_BUILD_TABLE_PRE(2, 0x200, false); /* optional */
SMBIOS_TABLE_SET_STR(2, manufacturer_str, type2.manufacturer);
SMBIOS_TABLE_SET_STR(2, product_str, type2.product);
SMBIOS_TABLE_SET_STR(2, version_str, type2.version);
SMBIOS_TABLE_SET_STR(2, serial_number_str, type2.serial);
SMBIOS_TABLE_SET_STR(2, asset_tag_number_str, type2.asset);
t->feature_flags = 0x01; /* Motherboard */
SMBIOS_TABLE_SET_STR(2, location_str, type2.location);
t->chassis_handle = cpu_to_le16(0x300); /* Type 3 (System enclosure) */
t->board_type = 0x0A; /* Motherboard */
t->contained_element_count = 0;
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_3_table(void)
{
SMBIOS_BUILD_TABLE_PRE(3, 0x300, true); /* required */
SMBIOS_TABLE_SET_STR(3, manufacturer_str, type3.manufacturer);
t->type = 0x01; /* Other */
SMBIOS_TABLE_SET_STR(3, version_str, type3.version);
SMBIOS_TABLE_SET_STR(3, serial_number_str, type3.serial);
SMBIOS_TABLE_SET_STR(3, asset_tag_number_str, type3.asset);
t->boot_up_state = 0x03; /* Safe */
t->power_supply_state = 0x03; /* Safe */
t->thermal_state = 0x03; /* Safe */
t->security_status = 0x02; /* Unknown */
t->oem_defined = cpu_to_le32(0);
t->height = 0;
t->number_of_power_cords = 0;
t->contained_element_count = 0;
t->contained_element_record_length = 0;
SMBIOS_TABLE_SET_STR(3, sku_number_str, type3.sku);
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_4_table(MachineState *ms, unsigned instance)
{
char sock_str[128];
SMBIOS_BUILD_TABLE_PRE(4, 0x400 + instance, true); /* required */
snprintf(sock_str, sizeof(sock_str), "%s%2x", type4.sock_pfx, instance);
SMBIOS_TABLE_SET_STR(4, socket_designation_str, sock_str);
t->processor_type = 0x03; /* CPU */
t->processor_family = 0x01; /* Other */
SMBIOS_TABLE_SET_STR(4, processor_manufacturer_str, type4.manufacturer);
t->processor_id[0] = cpu_to_le32(smbios_cpuid_version);
t->processor_id[1] = cpu_to_le32(smbios_cpuid_features);
SMBIOS_TABLE_SET_STR(4, processor_version_str, type4.version);
t->voltage = 0;
t->external_clock = cpu_to_le16(0); /* Unknown */
/* SVVP requires max_speed and current_speed to not be unknown. */
t->max_speed = cpu_to_le16(2000); /* 2000 MHz */
t->current_speed = cpu_to_le16(2000); /* 2000 MHz */
t->status = 0x41; /* Socket populated, CPU enabled */
t->processor_upgrade = 0x01; /* Other */
t->l1_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
t->l2_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
t->l3_cache_handle = cpu_to_le16(0xFFFF); /* N/A */
SMBIOS_TABLE_SET_STR(4, serial_number_str, type4.serial);
SMBIOS_TABLE_SET_STR(4, asset_tag_number_str, type4.asset);
SMBIOS_TABLE_SET_STR(4, part_number_str, type4.part);
t->core_count = t->core_enabled = ms->smp.cores;
t->thread_count = ms->smp.threads;
t->processor_characteristics = cpu_to_le16(0x02); /* Unknown */
t->processor_family2 = cpu_to_le16(0x01); /* Other */
SMBIOS_BUILD_TABLE_POST;
smbios_type4_count++;
}
static void smbios_build_type_11_table(void)
{
char count_str[128];
size_t i;
if (type11.nvalues == 0) {
return;
}
SMBIOS_BUILD_TABLE_PRE(11, 0xe00, true); /* required */
snprintf(count_str, sizeof(count_str), "%zu", type11.nvalues);
t->count = type11.nvalues;
for (i = 0; i < type11.nvalues; i++) {
SMBIOS_TABLE_SET_STR_LIST(11, type11.values[i]);
}
SMBIOS_BUILD_TABLE_POST;
}
#define MAX_T16_STD_SZ 0x80000000 /* 2T in Kilobytes */
static void smbios_build_type_16_table(unsigned dimm_cnt)
{
uint64_t size_kb;
SMBIOS_BUILD_TABLE_PRE(16, 0x1000, true); /* required */
t->location = 0x01; /* Other */
t->use = 0x03; /* System memory */
t->error_correction = 0x06; /* Multi-bit ECC (for Microsoft, per SeaBIOS) */
size_kb = QEMU_ALIGN_UP(ram_size, KiB) / KiB;
if (size_kb < MAX_T16_STD_SZ) {
t->maximum_capacity = cpu_to_le32(size_kb);
t->extended_maximum_capacity = cpu_to_le64(0);
} else {
t->maximum_capacity = cpu_to_le32(MAX_T16_STD_SZ);
t->extended_maximum_capacity = cpu_to_le64(ram_size);
}
t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
t->number_of_memory_devices = cpu_to_le16(dimm_cnt);
SMBIOS_BUILD_TABLE_POST;
}
#define MAX_T17_STD_SZ 0x7FFF /* (32G - 1M), in Megabytes */
#define MAX_T17_EXT_SZ 0x80000000 /* 2P, in Megabytes */
static void smbios_build_type_17_table(unsigned instance, uint64_t size)
{
char loc_str[128];
uint64_t size_mb;
SMBIOS_BUILD_TABLE_PRE(17, 0x1100 + instance, true); /* required */
t->physical_memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
t->memory_error_information_handle = cpu_to_le16(0xFFFE); /* Not provided */
t->total_width = cpu_to_le16(0xFFFF); /* Unknown */
t->data_width = cpu_to_le16(0xFFFF); /* Unknown */
size_mb = QEMU_ALIGN_UP(size, MiB) / MiB;
if (size_mb < MAX_T17_STD_SZ) {
t->size = cpu_to_le16(size_mb);
t->extended_size = cpu_to_le32(0);
} else {
assert(size_mb < MAX_T17_EXT_SZ);
t->size = cpu_to_le16(MAX_T17_STD_SZ);
t->extended_size = cpu_to_le32(size_mb);
}
t->form_factor = 0x09; /* DIMM */
t->device_set = 0; /* Not in a set */
snprintf(loc_str, sizeof(loc_str), "%s %d", type17.loc_pfx, instance);
SMBIOS_TABLE_SET_STR(17, device_locator_str, loc_str);
SMBIOS_TABLE_SET_STR(17, bank_locator_str, type17.bank);
t->memory_type = 0x07; /* RAM */
t->type_detail = cpu_to_le16(0x02); /* Other */
t->speed = cpu_to_le16(type17.speed);
SMBIOS_TABLE_SET_STR(17, manufacturer_str, type17.manufacturer);
SMBIOS_TABLE_SET_STR(17, serial_number_str, type17.serial);
SMBIOS_TABLE_SET_STR(17, asset_tag_number_str, type17.asset);
SMBIOS_TABLE_SET_STR(17, part_number_str, type17.part);
t->attributes = 0; /* Unknown */
t->configured_clock_speed = t->speed; /* reuse value for max speed */
t->minimum_voltage = cpu_to_le16(0); /* Unknown */
t->maximum_voltage = cpu_to_le16(0); /* Unknown */
t->configured_voltage = cpu_to_le16(0); /* Unknown */
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_19_table(unsigned instance,
uint64_t start, uint64_t size)
{
uint64_t end, start_kb, end_kb;
SMBIOS_BUILD_TABLE_PRE(19, 0x1300 + instance, true); /* required */
end = start + size - 1;
assert(end > start);
start_kb = start / KiB;
end_kb = end / KiB;
if (start_kb < UINT32_MAX && end_kb < UINT32_MAX) {
t->starting_address = cpu_to_le32(start_kb);
t->ending_address = cpu_to_le32(end_kb);
t->extended_starting_address =
t->extended_ending_address = cpu_to_le64(0);
} else {
t->starting_address = t->ending_address = cpu_to_le32(UINT32_MAX);
t->extended_starting_address = cpu_to_le64(start);
t->extended_ending_address = cpu_to_le64(end);
}
t->memory_array_handle = cpu_to_le16(0x1000); /* Type 16 above */
t->partition_width = 1; /* One device per row */
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_32_table(void)
{
SMBIOS_BUILD_TABLE_PRE(32, 0x2000, true); /* required */
memset(t->reserved, 0, 6);
t->boot_status = 0; /* No errors detected */
SMBIOS_BUILD_TABLE_POST;
}
static void smbios_build_type_127_table(void)
{
SMBIOS_BUILD_TABLE_PRE(127, 0x7F00, true); /* required */
SMBIOS_BUILD_TABLE_POST;
}
void smbios_set_cpuid(uint32_t version, uint32_t features)
{
smbios_cpuid_version = version;
smbios_cpuid_features = features;
}
#define SMBIOS_SET_DEFAULT(field, value) \
if (!field) { \
field = value; \
}
void smbios_set_defaults(const char *manufacturer, const char *product,
const char *version, bool legacy_mode,
bool uuid_encoded, SmbiosEntryPointType ep_type)
{
smbios_have_defaults = true;
smbios_legacy = legacy_mode;
smbios_uuid_encoded = uuid_encoded;
smbios_ep_type = ep_type;
/* drop unwanted version of command-line file blob(s) */
if (smbios_legacy) {
g_free(smbios_tables);
/* in legacy mode, also complain if fields were given for types > 1 */
if (find_next_bit(have_fields_bitmap,
SMBIOS_MAX_TYPE+1, 2) < SMBIOS_MAX_TYPE+1) {
error_report("can't process fields for smbios "
"types > 1 on machine versions < 2.1!");
exit(1);
}
} else {
g_free(smbios_entries);
}
SMBIOS_SET_DEFAULT(type1.manufacturer, manufacturer);
SMBIOS_SET_DEFAULT(type1.product, product);
SMBIOS_SET_DEFAULT(type1.version, version);
SMBIOS_SET_DEFAULT(type2.manufacturer, manufacturer);
SMBIOS_SET_DEFAULT(type2.product, product);
SMBIOS_SET_DEFAULT(type2.version, version);
SMBIOS_SET_DEFAULT(type3.manufacturer, manufacturer);
SMBIOS_SET_DEFAULT(type3.version, version);
SMBIOS_SET_DEFAULT(type4.sock_pfx, "CPU");
SMBIOS_SET_DEFAULT(type4.manufacturer, manufacturer);
SMBIOS_SET_DEFAULT(type4.version, version);
SMBIOS_SET_DEFAULT(type17.loc_pfx, "DIMM");
SMBIOS_SET_DEFAULT(type17.manufacturer, manufacturer);
}
static void smbios_entry_point_setup(void)
{
switch (smbios_ep_type) {
case SMBIOS_ENTRY_POINT_21:
memcpy(ep.ep21.anchor_string, "_SM_", 4);
memcpy(ep.ep21.intermediate_anchor_string, "_DMI_", 5);
ep.ep21.length = sizeof(struct smbios_21_entry_point);
ep.ep21.entry_point_revision = 0; /* formatted_area reserved */
memset(ep.ep21.formatted_area, 0, 5);
/* compliant with smbios spec v2.8 */
ep.ep21.smbios_major_version = 2;
ep.ep21.smbios_minor_version = 8;
ep.ep21.smbios_bcd_revision = 0x28;
/* set during table construction, but BIOS may override: */
ep.ep21.structure_table_length = cpu_to_le16(smbios_tables_len);
ep.ep21.max_structure_size = cpu_to_le16(smbios_table_max);
ep.ep21.number_of_structures = cpu_to_le16(smbios_table_cnt);
/* BIOS must recalculate */
ep.ep21.checksum = 0;
ep.ep21.intermediate_checksum = 0;
ep.ep21.structure_table_address = cpu_to_le32(0);
break;
case SMBIOS_ENTRY_POINT_30:
memcpy(ep.ep30.anchor_string, "_SM3_", 5);
ep.ep30.length = sizeof(struct smbios_30_entry_point);
ep.ep30.entry_point_revision = 1;
ep.ep30.reserved = 0;
/* compliant with smbios spec 3.0 */
ep.ep30.smbios_major_version = 3;
ep.ep30.smbios_minor_version = 0;
ep.ep30.smbios_doc_rev = 0;
/* set during table construct, but BIOS might override */
ep.ep30.structure_table_max_size = cpu_to_le32(smbios_tables_len);
/* BIOS must recalculate */
ep.ep30.checksum = 0;
ep.ep30.structure_table_address = cpu_to_le64(0);
break;
default:
abort();
break;
}
}
void smbios_get_tables(MachineState *ms,
const struct smbios_phys_mem_area *mem_array,
const unsigned int mem_array_size,
uint8_t **tables, size_t *tables_len,
uint8_t **anchor, size_t *anchor_len)
{
unsigned i, dimm_cnt;
if (smbios_legacy) {
*tables = *anchor = NULL;
*tables_len = *anchor_len = 0;
return;
}
if (!smbios_immutable) {
smbios_build_type_0_table();
smbios_build_type_1_table();
smbios_build_type_2_table();
smbios_build_type_3_table();
smbios_smp_sockets = DIV_ROUND_UP(ms->smp.cpus,
ms->smp.cores * ms->smp.threads);
assert(smbios_smp_sockets >= 1);
for (i = 0; i < smbios_smp_sockets; i++) {
smbios_build_type_4_table(ms, i);
}
smbios_build_type_11_table();
#define MAX_DIMM_SZ (16 * GiB)
#define GET_DIMM_SZ ((i < dimm_cnt - 1) ? MAX_DIMM_SZ \
: ((ram_size - 1) % MAX_DIMM_SZ) + 1)
dimm_cnt = QEMU_ALIGN_UP(ram_size, MAX_DIMM_SZ) / MAX_DIMM_SZ;
smbios_build_type_16_table(dimm_cnt);
for (i = 0; i < dimm_cnt; i++) {
smbios_build_type_17_table(i, GET_DIMM_SZ);
}
for (i = 0; i < mem_array_size; i++) {
smbios_build_type_19_table(i, mem_array[i].address,
mem_array[i].length);
}
smbios_build_type_32_table();
smbios_build_type_38_table();
smbios_build_type_127_table();
smbios_validate_table(ms);
smbios_entry_point_setup();
smbios_immutable = true;
}
/* return tables blob and entry point (anchor), and their sizes */
*tables = smbios_tables;
*tables_len = smbios_tables_len;
*anchor = (uint8_t *)&ep;
/* calculate length based on anchor string */
if (!strncmp((char *)&ep, "_SM_", 4)) {
*anchor_len = sizeof(struct smbios_21_entry_point);
} else if (!strncmp((char *)&ep, "_SM3_", 5)) {
*anchor_len = sizeof(struct smbios_30_entry_point);
} else {
abort();
}
}
static void save_opt(const char **dest, QemuOpts *opts, const char *name)
{
const char *val = qemu_opt_get(opts, name);
if (val) {
*dest = val;
}
}
struct opt_list {
const char *name;
size_t *ndest;
const char ***dest;
};
static int save_opt_one(void *opaque,
const char *name, const char *value,
Error **errp)
{
struct opt_list *opt = opaque;
if (!g_str_equal(name, opt->name)) {
return 0;
}
*opt->dest = g_renew(const char *, *opt->dest, (*opt->ndest) + 1);
(*opt->dest)[*opt->ndest] = value;
(*opt->ndest)++;
return 0;
}
static void save_opt_list(size_t *ndest, const char ***dest,
QemuOpts *opts, const char *name)
{
struct opt_list opt = {
name, ndest, dest,
};
qemu_opt_foreach(opts, save_opt_one, &opt, NULL);
}
void smbios_entry_add(QemuOpts *opts, Error **errp)
{
const char *val;
assert(!smbios_immutable);
val = qemu_opt_get(opts, "file");
if (val) {
struct smbios_structure_header *header;
int size;
struct smbios_table *table; /* legacy mode only */
if (!qemu_opts_validate(opts, qemu_smbios_file_opts, errp)) {
return;
}
size = get_image_size(val);
if (size == -1 || size < sizeof(struct smbios_structure_header)) {
error_setg(errp, "Cannot read SMBIOS file %s", val);
return;
}
/*
* NOTE: standard double '\0' terminator expected, per smbios spec.
* (except in legacy mode, where the second '\0' is implicit and
* will be inserted by the BIOS).
*/
smbios_tables = g_realloc(smbios_tables, smbios_tables_len + size);
header = (struct smbios_structure_header *)(smbios_tables +
smbios_tables_len);
if (load_image_size(val, (uint8_t *)header, size) != size) {
error_setg(errp, "Failed to load SMBIOS file %s", val);
return;
}
if (test_bit(header->type, have_fields_bitmap)) {
error_setg(errp,
"can't load type %d struct, fields already specified!",
header->type);
return;
}
set_bit(header->type, have_binfile_bitmap);
if (header->type == 4) {
smbios_type4_count++;
}
smbios_tables_len += size;
if (size > smbios_table_max) {
smbios_table_max = size;
}
smbios_table_cnt++;
/* add a copy of the newly loaded blob to legacy smbios_entries */
/* NOTE: This code runs before smbios_set_defaults(), so we don't
* yet know which mode (legacy vs. aggregate-table) will be
* required. We therefore add the binary blob to both legacy
* (smbios_entries) and aggregate (smbios_tables) tables, and
* delete the one we don't need from smbios_set_defaults(),
* once we know which machine version has been requested.
*/
if (!smbios_entries) {
smbios_entries_len = sizeof(uint16_t);
smbios_entries = g_malloc0(smbios_entries_len);
}
smbios_entries = g_realloc(smbios_entries, smbios_entries_len +
size + sizeof(*table));
table = (struct smbios_table *)(smbios_entries + smbios_entries_len);
table->header.type = SMBIOS_TABLE_ENTRY;
table->header.length = cpu_to_le16(sizeof(*table) + size);
memcpy(table->data, header, size);
smbios_entries_len += sizeof(*table) + size;
(*(uint16_t *)smbios_entries) =
cpu_to_le16(le16_to_cpu(*(uint16_t *)smbios_entries) + 1);
/* end: add a copy of the newly loaded blob to legacy smbios_entries */
return;
}
val = qemu_opt_get(opts, "type");
if (val) {
unsigned long type = strtoul(val, NULL, 0);
if (type > SMBIOS_MAX_TYPE) {
error_setg(errp, "out of range!");
return;
}
if (test_bit(type, have_binfile_bitmap)) {
error_setg(errp, "can't add fields, binary file already loaded!");
return;
}
set_bit(type, have_fields_bitmap);
switch (type) {
case 0:
if (!qemu_opts_validate(opts, qemu_smbios_type0_opts, errp)) {
return;
}
save_opt(&type0.vendor, opts, "vendor");
save_opt(&type0.version, opts, "version");
save_opt(&type0.date, opts, "date");
type0.uefi = qemu_opt_get_bool(opts, "uefi", false);
val = qemu_opt_get(opts, "release");
if (val) {
if (sscanf(val, "%hhu.%hhu", &type0.major, &type0.minor) != 2) {
error_setg(errp, "Invalid release");
return;
}
type0.have_major_minor = true;
}
return;
case 1:
if (!qemu_opts_validate(opts, qemu_smbios_type1_opts, errp)) {
return;
}
save_opt(&type1.manufacturer, opts, "manufacturer");
save_opt(&type1.product, opts, "product");
save_opt(&type1.version, opts, "version");
save_opt(&type1.serial, opts, "serial");
save_opt(&type1.sku, opts, "sku");
save_opt(&type1.family, opts, "family");
val = qemu_opt_get(opts, "uuid");
if (val) {
if (qemu_uuid_parse(val, &qemu_uuid) != 0) {
error_setg(errp, "Invalid UUID");
return;
}
qemu_uuid_set = true;
}
return;
case 2:
if (!qemu_opts_validate(opts, qemu_smbios_type2_opts, errp)) {
return;
}
save_opt(&type2.manufacturer, opts, "manufacturer");
save_opt(&type2.product, opts, "product");
save_opt(&type2.version, opts, "version");
save_opt(&type2.serial, opts, "serial");
save_opt(&type2.asset, opts, "asset");
save_opt(&type2.location, opts, "location");
return;
case 3:
if (!qemu_opts_validate(opts, qemu_smbios_type3_opts, errp)) {
return;
}
save_opt(&type3.manufacturer, opts, "manufacturer");
save_opt(&type3.version, opts, "version");
save_opt(&type3.serial, opts, "serial");
save_opt(&type3.asset, opts, "asset");
save_opt(&type3.sku, opts, "sku");
return;
case 4:
if (!qemu_opts_validate(opts, qemu_smbios_type4_opts, errp)) {
return;
}
save_opt(&type4.sock_pfx, opts, "sock_pfx");
save_opt(&type4.manufacturer, opts, "manufacturer");
save_opt(&type4.version, opts, "version");
save_opt(&type4.serial, opts, "serial");
save_opt(&type4.asset, opts, "asset");
save_opt(&type4.part, opts, "part");
return;
case 11:
if (!qemu_opts_validate(opts, qemu_smbios_type11_opts, errp)) {
return;
}
save_opt_list(&type11.nvalues, &type11.values, opts, "value");
return;
case 17:
if (!qemu_opts_validate(opts, qemu_smbios_type17_opts, errp)) {
return;
}
save_opt(&type17.loc_pfx, opts, "loc_pfx");
save_opt(&type17.bank, opts, "bank");
save_opt(&type17.manufacturer, opts, "manufacturer");
save_opt(&type17.serial, opts, "serial");
save_opt(&type17.asset, opts, "asset");
save_opt(&type17.part, opts, "part");
type17.speed = qemu_opt_get_number(opts, "speed", 0);
return;
default:
error_setg(errp,
"Don't know how to build fields for SMBIOS type %ld",
type);
return;
}
}
error_setg(errp, "Must specify type= or file=");
}
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