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acrn-hypervisor/devicemodel/core/smbiostbl.c

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/*-
* Copyright (c) 2014 Tycho Nightingale <tycho.nightingale@pluribusnetworks.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <assert.h>
#include <openssl/md5.h>
#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include <unistd.h>
#include "vmmapi.h"
#include "dm.h"
#define SMBIOS_BASE 0xF1000
/* ACRN-DM_ACPI_BASE - SMBIOS_BASE) */
#define SMBIOS_MAX_LENGTH (0xF2400 - 0xF1000)
#define SMBIOS_TYPE_BIOS 0
#define SMBIOS_TYPE_SYSTEM 1
#define SMBIOS_TYPE_CHASSIS 3
#define SMBIOS_TYPE_PROCESSOR 4
#define SMBIOS_TYPE_MEMARRAY 16
#define SMBIOS_TYPE_MEMDEVICE 17
#define SMBIOS_TYPE_MEMARRAYMAP 19
#define SMBIOS_TYPE_BOOT 32
#define SMBIOS_TYPE_EOT 127
struct smbios_structure {
uint8_t type;
uint8_t length;
uint16_t handle;
} __attribute__((packed));
typedef int (*initializer_func_t)(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size);
struct smbios_template_entry {
struct smbios_structure *entry;
const char **strings;
initializer_func_t initializer;
};
/*
* SMBIOS Structure Table Entry Point
*/
#define SMBIOS_ENTRY_EANCHOR "_SM_"
#define SMBIOS_ENTRY_EANCHORLEN 4
#define SMBIOS_ENTRY_IANCHOR "_DMI_"
#define SMBIOS_ENTRY_IANCHORLEN 5
struct smbios_entry_point {
char eanchor[4]; /* anchor tag */
uint8_t echecksum; /* checksum of entry point structure */
uint8_t eplen; /* length in bytes of entry point */
uint8_t major; /* major version of the SMBIOS spec */
uint8_t minor; /* minor version of the SMBIOS spec */
uint16_t maxssize; /* maximum size in bytes of a struct */
uint8_t revision; /* entry point structure revision */
uint8_t format[5]; /* entry point rev-specific data */
char ianchor[5]; /* intermediate anchor tag */
uint8_t ichecksum; /* intermediate checksum */
uint16_t stlen; /* len in bytes of structure table */
uint32_t staddr; /* physical addr of structure table */
uint16_t stnum; /* number of structure table entries */
uint8_t bcdrev; /* BCD value representing DMI ver */
} __attribute__((packed));
/*
* BIOS Information
*/
#define SMBIOS_FL_ISA 0x00000010 /* ISA is supported */
#define SMBIOS_FL_PCI 0x00000080 /* PCI is supported */
#define SMBIOS_FL_SHADOW 0x00001000 /* BIOS shadowing is allowed */
#define SMBIOS_FL_CDBOOT 0x00008000 /* Boot from CD is supported */
#define SMBIOS_FL_SELBOOT 0x00010000 /* Selectable Boot supported */
#define SMBIOS_FL_EDD 0x00080000 /* EDD Spec is supported */
#define SMBIOS_XB1_FL_ACPI 0x00000001 /* ACPI is supported */
#define SMBIOS_XB2_FL_BBS 0x00000001 /* BIOS Boot Specification */
#define SMBIOS_XB2_FL_VM 0x00000010 /* Virtual Machine */
struct smbios_table_type0 {
struct smbios_structure header;
uint8_t vendor; /* vendor string */
uint8_t version; /* version string */
uint16_t segment; /* address segment location */
uint8_t rel_date; /* release date */
uint8_t size; /* rom size */
uint64_t cflags; /* characteristics */
uint8_t xc_bytes[2]; /* characteristics ext bytes */
uint8_t sb_major_rel; /* system bios version */
uint8_t sb_minor_rele;
uint8_t ecfw_major_rel; /* embedded ctrl fw version */
uint8_t ecfw_minor_rel;
} __attribute__((packed));
/*
* System Information
*/
#define SMBIOS_WAKEUP_SWITCH 0x06 /* power switch */
struct smbios_table_type1 {
struct smbios_structure header;
uint8_t manufacturer; /* manufacturer string */
uint8_t product; /* product name string */
uint8_t version; /* version string */
uint8_t serial; /* serial number string */
uint8_t uuid[16]; /* uuid byte array */
uint8_t wakeup; /* wake-up event */
uint8_t sku; /* sku number string */
uint8_t family; /* family name string */
} __attribute__((packed));
/*
* System Enclosure or Chassis
*/
#define SMBIOS_CHT_UNKNOWN 0x02 /* unknown */
#define SMBIOS_CHST_SAFE 0x03 /* safe */
#define SMBIOS_CHSC_NONE 0x03 /* none */
struct smbios_table_type3 {
struct smbios_structure header;
uint8_t manufacturer; /* manufacturer string */
uint8_t type; /* type */
uint8_t version; /* version string */
uint8_t serial; /* serial number string */
uint8_t asset; /* asset tag string */
uint8_t bustate; /* boot-up state */
uint8_t psstate; /* power supply state */
uint8_t tstate; /* thermal state */
uint8_t security; /* security status */
uint8_t uheight; /* height in 'u's */
uint8_t cords; /* number of power cords */
uint8_t elems; /* number of element records */
uint8_t elemlen; /* length of records */
uint8_t sku; /* sku number string */
} __attribute__((packed));
/*
* Processor Information
*/
#define SMBIOS_PRT_CENTRAL 0x03 /* central processor */
#define SMBIOS_PRF_OTHER 0x01 /* other */
#define SMBIOS_PRS_PRESENT 0x40 /* socket is populated */
#define SMBIOS_PRS_ENABLED 0x1 /* enabled */
#define SMBIOS_PRU_NONE 0x06 /* none */
#define SMBIOS_PFL_64B 0x04 /* 64-bit capable */
struct smbios_table_type4 {
struct smbios_structure header;
uint8_t socket; /* socket designation string */
uint8_t type; /* processor type */
uint8_t family; /* processor family */
uint8_t manufacturer; /* manufacturer string */
uint64_t cpuid; /* processor cpuid */
uint8_t version; /* version string */
uint8_t voltage; /* voltage */
uint16_t clkspeed; /* ext clock speed in mhz */
uint16_t maxspeed; /* maximum speed in mhz */
uint16_t curspeed; /* current speed in mhz */
uint8_t status; /* status */
uint8_t upgrade; /* upgrade */
uint16_t l1handle; /* l1 cache handle */
uint16_t l2handle; /* l2 cache handle */
uint16_t l3handle; /* l3 cache handle */
uint8_t serial; /* serial number string */
uint8_t asset; /* asset tag string */
uint8_t part; /* part number string */
uint8_t cores; /* cores per socket */
uint8_t ecores; /* enabled cores */
uint8_t threads; /* threads per socket */
uint16_t cflags; /* processor characteristics */
uint16_t family2; /* processor family 2 */
} __attribute__((packed));
/*
* Physical Memory Array
*/
#define SMBIOS_MAL_SYSMB 0x03 /* system board or motherboard */
#define SMBIOS_MAU_SYSTEM 0x03 /* system memory */
#define SMBIOS_MAE_NONE 0x03 /* none */
struct smbios_table_type16 {
struct smbios_structure header;
uint8_t location; /* physical device location */
uint8_t use; /* device functional purpose */
uint8_t ecc; /* err detect/correct method */
uint32_t size; /* max mem capacity in kb */
uint16_t errhand; /* handle of error (if any) */
uint16_t ndevs; /* num of slots or sockets */
uint64_t xsize; /* max mem capacity in bytes */
} __attribute__((packed));
/*
* Memory Device
*/
#define SMBIOS_MDFF_UNKNOWN 0x02 /* unknown */
#define SMBIOS_MDT_UNKNOWN 0x02 /* unknown */
#define SMBIOS_MDF_UNKNOWN 0x0004 /* unknown */
struct smbios_table_type17 {
struct smbios_structure header;
uint16_t arrayhand; /* handle of physl mem array */
uint16_t errhand; /* handle of mem error data */
uint16_t twidth; /* total width in bits */
uint16_t dwidth; /* data width in bits */
uint16_t size; /* size in bytes */
uint8_t form; /* form factor */
uint8_t set; /* set */
uint8_t dloc; /* device locator string */
uint8_t bloc; /* phys bank locator string */
uint8_t type; /* memory type */
uint16_t flags; /* memory characteristics */
uint16_t maxspeed; /* maximum speed in mhz */
uint8_t manufacturer; /* manufacturer string */
uint8_t serial; /* serial number string */
uint8_t asset; /* asset tag string */
uint8_t part; /* part number string */
uint8_t attributes; /* attributes */
uint32_t xsize; /* extended size in mbs */
uint16_t curspeed; /* current speed in mhz */
uint16_t minvoltage; /* minimum voltage */
uint16_t maxvoltage; /* maximum voltage */
uint16_t curvoltage; /* configured voltage */
} __attribute__((packed));
/*
* Memory Array Mapped Address
*/
struct smbios_table_type19 {
struct smbios_structure header;
uint32_t saddr; /* start phys addr in kb */
uint32_t eaddr; /* end phys addr in kb */
uint16_t arrayhand; /* physical mem array handle */
uint8_t width; /* num of dev in row */
uint64_t xsaddr; /* start phys addr in bytes */
uint64_t xeaddr; /* end phys addr in bytes */
} __attribute__((packed));
/*
* System Boot Information
*/
#define SMBIOS_BOOT_NORMAL 0 /* no errors detected */
struct smbios_table_type32 {
struct smbios_structure header;
uint8_t reserved[6];
uint8_t status; /* boot status */
} __attribute__((packed));
/*
* End-of-Table
*/
struct smbios_table_type127 {
struct smbios_structure header;
} __attribute__((packed));
struct smbios_table_type0 smbios_type0_template = {
{ SMBIOS_TYPE_BIOS, sizeof(struct smbios_table_type0), 0 },
1, /* bios vendor string */
2, /* bios version string */
0xF000, /* bios address segment location */
3, /* bios release date */
0x0, /* bios size (64k * (n + 1) is the size in bytes) */
SMBIOS_FL_ISA | SMBIOS_FL_PCI | SMBIOS_FL_SHADOW |
SMBIOS_FL_CDBOOT | SMBIOS_FL_EDD,
{ SMBIOS_XB1_FL_ACPI, SMBIOS_XB2_FL_BBS | SMBIOS_XB2_FL_VM },
0x0, /* bios major release */
0x0, /* bios minor release */
0xff, /* embedded controller firmware major release */
0xff /* embedded controller firmware minor release */
};
const char *smbios_type0_strings[] = {
"ACRN-DM", /* vendor string */
"1.00", /* bios version string */
"03/14/2014", /* bios release date string */
NULL
};
struct smbios_table_type1 smbios_type1_template = {
{ SMBIOS_TYPE_SYSTEM, sizeof(struct smbios_table_type1), 0 },
1, /* manufacturer string */
2, /* product string */
3, /* version string */
4, /* serial number string */
{ 0 },
SMBIOS_WAKEUP_SWITCH,
5, /* sku string */
6 /* family string */
};
static int smbios_type1_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size);
const char *smbios_type1_strings[] = {
" ", /* manufacturer string */
"ACRN-DM", /* product name string */
"1.0", /* version string */
"None", /* serial number string */
"None", /* sku string */
" ", /* family name string */
NULL
};
struct smbios_table_type3 smbios_type3_template = {
{ SMBIOS_TYPE_CHASSIS, sizeof(struct smbios_table_type3), 0 },
1, /* manufacturer string */
SMBIOS_CHT_UNKNOWN,
2, /* version string */
3, /* serial number string */
4, /* asset tag string */
SMBIOS_CHST_SAFE,
SMBIOS_CHST_SAFE,
SMBIOS_CHST_SAFE,
SMBIOS_CHSC_NONE,
0, /* height in 'u's (0=enclosure height unspecified) */
0, /* number of power cords (0=number unspecified) */
0, /* number of contained element records */
0, /* length of records */
5 /* sku number string */
};
const char *smbios_type3_strings[] = {
" ", /* manufacturer string */
"1.0", /* version string */
"None", /* serial number string */
"None", /* asset tag string */
"None", /* sku number string */
NULL
};
struct smbios_table_type4 smbios_type4_template = {
{ SMBIOS_TYPE_PROCESSOR, sizeof(struct smbios_table_type4), 0 },
1, /* socket designation string */
SMBIOS_PRT_CENTRAL,
SMBIOS_PRF_OTHER,
2, /* manufacturer string */
0, /* cpuid */
3, /* version string */
0, /* voltage */
0, /* external clock frequency in mhz (0=unknown) */
0, /* maximum frequency in mhz (0=unknown) */
0, /* current frequency in mhz (0=unknown) */
SMBIOS_PRS_PRESENT | SMBIOS_PRS_ENABLED,
SMBIOS_PRU_NONE,
-1, /* l1 cache handle */
-1, /* l2 cache handle */
-1, /* l3 cache handle */
4, /* serial number string */
5, /* asset tag string */
6, /* part number string */
0, /* cores per socket (0=unknown) */
0, /* enabled cores per socket (0=unknown) */
0, /* threads per socket (0=unknown) */
SMBIOS_PFL_64B,
SMBIOS_PRF_OTHER
};
const char *smbios_type4_strings[] = {
" ", /* socket designation string */
" ", /* manufacturer string */
" ", /* version string */
"None", /* serial number string */
"None", /* asset tag string */
"None", /* part number string */
NULL
};
static int smbios_type4_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size);
struct smbios_table_type16 smbios_type16_template = {
{ SMBIOS_TYPE_MEMARRAY, sizeof(struct smbios_table_type16), 0 },
SMBIOS_MAL_SYSMB,
SMBIOS_MAU_SYSTEM,
SMBIOS_MAE_NONE,
0x80000000, /* max mem capacity in kb (0x80000000=use extended) */
-1, /* handle of error (if any) */
0, /* number of slots or sockets (TBD) */
0 /* extended maximum memory capacity in bytes (TBD) */
};
static int smbios_type16_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size);
struct smbios_table_type17 smbios_type17_template = {
{ SMBIOS_TYPE_MEMDEVICE, sizeof(struct smbios_table_type17), 0 },
-1, /* handle of physical memory array */
-1, /* handle of memory error data */
64, /* total width in bits including ecc */
64, /* data width in bits */
0x7fff, /* size in bytes (0x7fff=use extended)*/
SMBIOS_MDFF_UNKNOWN,
0, /* set (0x00=none, 0xff=unknown) */
1, /* device locator string */
2, /* physical bank locator string */
SMBIOS_MDT_UNKNOWN,
SMBIOS_MDF_UNKNOWN,
0, /* maximum memory speed in mhz (0=unknown) */
3, /* manufacturer string */
4, /* serial number string */
5, /* asset tag string */
6, /* part number string */
0, /* attributes (0=unknown rank information) */
0, /* extended size in mb (TBD) */
0, /* current speed in mhz (0=unknown) */
0, /* minimum voltage in mv (0=unknown) */
0, /* maximum voltage in mv (0=unknown) */
0 /* configured voltage in mv (0=unknown) */
};
const char *smbios_type17_strings[] = {
" ", /* device locator string */
" ", /* physical bank locator string */
" ", /* manufacturer string */
"None", /* serial number string */
"None", /* asset tag string */
"None", /* part number string */
NULL
};
static int smbios_type17_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size);
struct smbios_table_type19 smbios_type19_template = {
{ SMBIOS_TYPE_MEMARRAYMAP, sizeof(struct smbios_table_type19), 0 },
0xffffffff, /* starting phys addr in kb (0xffffffff=use ext) */
0xffffffff, /* ending phys addr in kb (0xffffffff=use ext) */
-1, /* physical memory array handle */
1, /* number of devices that form a row */
0, /* extended starting phys addr in bytes (TDB) */
0 /* extended ending phys addr in bytes (TDB) */
};
static int smbios_type19_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size);
struct smbios_table_type32 smbios_type32_template = {
{ SMBIOS_TYPE_BOOT, sizeof(struct smbios_table_type32), 0 },
{ 0, 0, 0, 0, 0, 0 },
SMBIOS_BOOT_NORMAL
};
struct smbios_table_type127 smbios_type127_template = {
{ SMBIOS_TYPE_EOT, sizeof(struct smbios_table_type127), 0 }
};
static int smbios_generic_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size);
static struct smbios_template_entry smbios_template[] = {
{ (struct smbios_structure *)&smbios_type0_template,
smbios_type0_strings,
smbios_generic_initializer },
{ (struct smbios_structure *)&smbios_type1_template,
smbios_type1_strings,
smbios_type1_initializer },
{ (struct smbios_structure *)&smbios_type3_template,
smbios_type3_strings,
smbios_generic_initializer },
{ (struct smbios_structure *)&smbios_type4_template,
smbios_type4_strings,
smbios_type4_initializer },
{ (struct smbios_structure *)&smbios_type16_template,
NULL,
smbios_type16_initializer },
{ (struct smbios_structure *)&smbios_type17_template,
smbios_type17_strings,
smbios_type17_initializer },
{ (struct smbios_structure *)&smbios_type19_template,
NULL,
smbios_type19_initializer },
{ (struct smbios_structure *)&smbios_type32_template,
NULL,
smbios_generic_initializer },
{ (struct smbios_structure *)&smbios_type127_template,
NULL,
smbios_generic_initializer },
{ NULL, NULL, NULL }
};
static uint64_t guest_lomem, guest_himem;
static uint16_t type16_handle;
static int
smbios_generic_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size)
{
struct smbios_structure *entry;
memcpy(curaddr, template_entry, template_entry->length);
entry = (struct smbios_structure *)curaddr;
entry->handle = *n + 1;
curaddr += entry->length;
if (template_strings != NULL) {
int i;
for (i = 0; template_strings[i] != NULL; i++) {
const char *string;
int len;
string = template_strings[i];
len = strlen(string) + 1;
memcpy(curaddr, string, len);
curaddr += len;
}
*curaddr = '\0';
curaddr++;
} else {
/* Minimum string section is double nul */
*curaddr = '\0';
curaddr++;
*curaddr = '\0';
curaddr++;
}
(*n)++;
*endaddr = curaddr;
return 0;
}
static int
smbios_type1_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size)
{
struct smbios_table_type1 *type1;
smbios_generic_initializer(template_entry, template_strings,
curaddr, endaddr, n, size);
type1 = (struct smbios_table_type1 *)curaddr;
if (guest_uuid_str != NULL) {
uuid_t uuid;
uint32_t status;
status = uuid_parse(guest_uuid_str, uuid);
if (status != 0)
return -1;
/* TODO */
/* uuid_enc_le(&type1->uuid, &uuid); */
} else {
MD5_CTX mdctx;
u_char digest[16];
char hostname[MAXHOSTNAMELEN];
/*
* Universally unique and yet reproducible are an
* oxymoron, however reproducible is desirable in
* this case.
*/
if (gethostname(hostname, sizeof(hostname)))
return -1;
MD5_Init(&mdctx);
MD5_Update(&mdctx, vmname, strlen(vmname));
MD5_Update(&mdctx, hostname, sizeof(hostname));
MD5_Final(digest, &mdctx);
/*
* Set the variant and version number.
*/
digest[6] &= 0x0F;
digest[6] |= 0x30; /* version 3 */
digest[8] &= 0x3F;
digest[8] |= 0x80;
memcpy(&type1->uuid, digest, sizeof(digest));
}
return 0;
}
static int
smbios_type4_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size)
{
int i;
for (i = 0; i < guest_ncpus; i++) {
struct smbios_table_type4 *type4;
char *p;
int nstrings, len;
smbios_generic_initializer(template_entry, template_strings,
curaddr, endaddr, n, size);
type4 = (struct smbios_table_type4 *)curaddr;
p = curaddr + sizeof(struct smbios_table_type4);
nstrings = 0;
while (p < *endaddr - 1) {
if (*p++ == '\0')
nstrings++;
}
len = sprintf(*endaddr - 1, "CPU #%d", i) + 1;
*endaddr += len - 1;
*(*endaddr) = '\0';
(*endaddr)++;
type4->socket = nstrings + 1;
curaddr = *endaddr;
}
return 0;
}
static int
smbios_type16_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size)
{
struct smbios_table_type16 *type16;
type16_handle = *n;
smbios_generic_initializer(template_entry, template_strings,
curaddr, endaddr, n, size);
type16 = (struct smbios_table_type16 *)curaddr;
type16->xsize = guest_lomem + guest_himem;
type16->ndevs = guest_himem > 0 ? 2 : 1;
return 0;
}
static int
smbios_type17_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size)
{
struct smbios_table_type17 *type17;
smbios_generic_initializer(template_entry, template_strings,
curaddr, endaddr, n, size);
type17 = (struct smbios_table_type17 *)curaddr;
type17->arrayhand = type16_handle;
type17->xsize = guest_lomem;
if (guest_himem > 0) {
curaddr = *endaddr;
smbios_generic_initializer(template_entry, template_strings,
curaddr, endaddr, n, size);
type17 = (struct smbios_table_type17 *)curaddr;
type17->arrayhand = type16_handle;
type17->xsize = guest_himem;
}
return 0;
}
static int
smbios_type19_initializer(struct smbios_structure *template_entry,
const char **template_strings, char *curaddr, char **endaddr,
uint16_t *n, uint16_t *size)
{
struct smbios_table_type19 *type19;
smbios_generic_initializer(template_entry, template_strings,
curaddr, endaddr, n, size);
type19 = (struct smbios_table_type19 *)curaddr;
type19->arrayhand = type16_handle;
type19->xsaddr = 0;
type19->xeaddr = guest_lomem;
if (guest_himem > 0) {
curaddr = *endaddr;
smbios_generic_initializer(template_entry, template_strings,
curaddr, endaddr, n, size);
type19 = (struct smbios_table_type19 *)curaddr;
type19->arrayhand = type16_handle;
type19->xsaddr = 4*GB;
type19->xeaddr = guest_himem;
}
return 0;
}
static void
smbios_ep_initializer(struct smbios_entry_point *smbios_ep, uint32_t staddr)
{
memset(smbios_ep, 0, sizeof(*smbios_ep));
memcpy(smbios_ep->eanchor, SMBIOS_ENTRY_EANCHOR,
SMBIOS_ENTRY_EANCHORLEN);
smbios_ep->eplen = 0x1F;
assert(sizeof(struct smbios_entry_point) == smbios_ep->eplen);
smbios_ep->major = 2;
smbios_ep->minor = 6;
smbios_ep->revision = 0;
memcpy(smbios_ep->ianchor, SMBIOS_ENTRY_IANCHOR,
SMBIOS_ENTRY_IANCHORLEN);
smbios_ep->staddr = staddr;
smbios_ep->bcdrev = 0x24;
}
static void
smbios_ep_finalizer(struct smbios_entry_point *smbios_ep, uint16_t len,
uint16_t num, uint16_t maxssize)
{
uint8_t checksum;
int i;
smbios_ep->maxssize = maxssize;
smbios_ep->stlen = len;
smbios_ep->stnum = num;
checksum = 0;
for (i = 0x10; i < 0x1f; i++)
checksum -= ((uint8_t *)smbios_ep)[i];
smbios_ep->ichecksum = checksum;
checksum = 0;
for (i = 0; i < 0x1f; i++)
checksum -= ((uint8_t *)smbios_ep)[i];
smbios_ep->echecksum = checksum;
}
int
smbios_build(struct vmctx *ctx)
{
struct smbios_entry_point *smbios_ep;
uint16_t n;
uint16_t maxssize;
char *curaddr, *startaddr, *ststartaddr;
int i;
int err;
guest_lomem = vm_get_lowmem_size(ctx);
guest_himem = vm_get_highmem_size(ctx);
startaddr = paddr_guest2host(ctx, SMBIOS_BASE, SMBIOS_MAX_LENGTH);
if (startaddr == NULL) {
fprintf(stderr, "smbios table requires mapped mem\n");
return -1;
}
curaddr = startaddr;
smbios_ep = (struct smbios_entry_point *)curaddr;
smbios_ep_initializer(smbios_ep, SMBIOS_BASE +
sizeof(struct smbios_entry_point));
curaddr += sizeof(struct smbios_entry_point);
ststartaddr = curaddr;
n = 0;
maxssize = 0;
for (i = 0; smbios_template[i].entry != NULL; i++) {
struct smbios_structure *entry;
const char **strings;
initializer_func_t initializer;
char *endaddr;
uint16_t size;
entry = smbios_template[i].entry;
strings = smbios_template[i].strings;
initializer = smbios_template[i].initializer;
err = (*initializer)(entry, strings, curaddr, &endaddr,
&n, &size);
if (err != 0)
return err;
if (size > maxssize)
maxssize = size;
curaddr = endaddr;
}
assert(curaddr - startaddr < SMBIOS_MAX_LENGTH);
smbios_ep_finalizer(smbios_ep, curaddr - ststartaddr, n, maxssize);
return 0;
}
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