Module Name: src
Committed By: jmcneill
Date: Sat Nov 30 13:02:18 UTC 2019
Modified Files:
src/sys/stand/efiboot: Makefile.efiboot efiacpi.c version
Added Files:
src/sys/stand/efiboot: smbios.c smbios.h
Log Message:
Use SMBIOS system vendor and product strings to create a "model" string
for the root node in the fabricated ACPI device tree, when possible.
To generate a diff of this commit:
cvs rdiff -u -r1.8 -r1.9 src/sys/stand/efiboot/Makefile.efiboot
cvs rdiff -u -r1.4 -r1.5 src/sys/stand/efiboot/efiacpi.c
cvs rdiff -u -r0 -r1.1 src/sys/stand/efiboot/smbios.c \
src/sys/stand/efiboot/smbios.h
cvs rdiff -u -r1.12 -r1.13 src/sys/stand/efiboot/version
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/stand/efiboot/Makefile.efiboot
diff -u src/sys/stand/efiboot/Makefile.efiboot:1.8 src/sys/stand/efiboot/Makefile.efiboot:1.9
--- src/sys/stand/efiboot/Makefile.efiboot:1.8 Sun Jul 21 17:01:39 2019
+++ src/sys/stand/efiboot/Makefile.efiboot Sat Nov 30 13:02:18 2019
@@ -1,4 +1,4 @@
-# $NetBSD: Makefile.efiboot,v 1.8 2019/07/21 17:01:39 rin Exp $
+# $NetBSD: Makefile.efiboot,v 1.9 2019/11/30 13:02:18 jmcneill Exp $
S= ${.CURDIR}/../../..
@@ -22,7 +22,7 @@ AFLAGS.start.S= ${${ACTIVE_CC} == "clang
.PATH: ${EFIDIR}/gnuefi
SOURCES= crt0-efi-${GNUEFIARCH}.S reloc_${GNUEFIARCH}.c
SOURCES+= boot.c conf.c console.c dev_net.c devopen.c exec.c panic.c prompt.c
-SOURCES+= efiboot.c efichar.c efidev.c efienv.c efigetsecs.c efifdt.c efifile.c efiblock.c efinet.c efipxe.c efiacpi.c
+SOURCES+= efiboot.c efichar.c efidev.c efienv.c efigetsecs.c efifdt.c efifile.c efiblock.c efinet.c efipxe.c efiacpi.c smbios.c
.PATH: ${S}/external/bsd/libfdt/dist
CPPFLAGS+= -I${S}/external/bsd/libfdt/dist
Index: src/sys/stand/efiboot/efiacpi.c
diff -u src/sys/stand/efiboot/efiacpi.c:1.4 src/sys/stand/efiboot/efiacpi.c:1.5
--- src/sys/stand/efiboot/efiacpi.c:1.4 Thu Aug 1 13:11:16 2019
+++ src/sys/stand/efiboot/efiacpi.c Sat Nov 30 13:02:18 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: efiacpi.c,v 1.4 2019/08/01 13:11:16 jmcneill Exp $ */
+/* $NetBSD: efiacpi.c,v 1.5 2019/11/30 13:02:18 jmcneill Exp $ */
/*-
* Copyright (c) 2018 The NetBSD Foundation, Inc.
@@ -32,6 +32,7 @@
#include "efiboot.h"
#include "efiacpi.h"
#include "efifdt.h"
+#include "smbios.h"
#include <libfdt.h>
@@ -77,6 +78,39 @@ efi_acpi_show(void)
printf("\n");
}
+static char model_buf[128];
+
+static const char *
+efi_acpi_get_model(void)
+{
+ struct smbtable smbios;
+ struct smbios_sys *psys;
+ const char *s;
+ char *buf;
+
+ memset(model_buf, 0, sizeof(model_buf));
+
+ if (smbios3_table != NULL) {
+ smbios_init(smbios3_table);
+
+ buf = model_buf;
+ smbios.cookie = 0;
+ if (smbios_find_table(SMBIOS_TYPE_SYSTEM, &smbios)) {
+ psys = smbios.tblhdr;
+ if ((s = smbios_get_string(&smbios, psys->vendor, buf, 64)) != NULL) {
+ buf += strlen(s);
+ *buf++ = ' ';
+ }
+ smbios_get_string(&smbios, psys->product, buf, 64);
+ }
+ }
+
+ if (model_buf[0] == '\0')
+ strcpy(model_buf, "ACPI");
+
+ return model_buf;
+}
+
int
efi_acpi_create_fdt(void)
{
@@ -94,8 +128,10 @@ efi_acpi_create_fdt(void)
if (error)
return EIO;
+ const char *model = efi_acpi_get_model();
+
fdt_setprop_string(fdt, fdt_path_offset(fdt, "/"), "compatible", "netbsd,generic-acpi");
- fdt_setprop_string(fdt, fdt_path_offset(fdt, "/"), "model", "ACPI");
+ fdt_setprop_string(fdt, fdt_path_offset(fdt, "/"), "model", model);
fdt_setprop_cell(fdt, fdt_path_offset(fdt, "/"), "#address-cells", 2);
fdt_setprop_cell(fdt, fdt_path_offset(fdt, "/"), "#size-cells", 2);
Index: src/sys/stand/efiboot/version
diff -u src/sys/stand/efiboot/version:1.12 src/sys/stand/efiboot/version:1.13
--- src/sys/stand/efiboot/version:1.12 Thu Aug 1 13:11:16 2019
+++ src/sys/stand/efiboot/version Sat Nov 30 13:02:18 2019
@@ -1,4 +1,4 @@
-$NetBSD: version,v 1.12 2019/08/01 13:11:16 jmcneill Exp $
+$NetBSD: version,v 1.13 2019/11/30 13:02:18 jmcneill Exp $
NOTE ANY CHANGES YOU MAKE TO THE EFI BOOTLOADER HERE. The format of this
file is important - make sure the entries are appended on end, last item
@@ -16,3 +16,4 @@ is taken as the current.
1.9: Add support for efiboot.plist and loading device tree overlays.
1.10: Add support for EFI GOP framebuffers in ACPI mode.
1.11: Add full UEFI memory map to /chosen node.
+1.12: Derive ACPI model string from SMBIOS.
Added files:
Index: src/sys/stand/efiboot/smbios.c
diff -u /dev/null src/sys/stand/efiboot/smbios.c:1.1
--- /dev/null Sat Nov 30 13:02:18 2019
+++ src/sys/stand/efiboot/smbios.c Sat Nov 30 13:02:18 2019
@@ -0,0 +1,190 @@
+/* $NetBSD: smbios.c,v 1.1 2019/11/30 13:02:18 jmcneill Exp $ */
+
+/*
+ * Copyright (c) 1999 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
+ * NASA Ames Research Center.
+ *
+ * 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 NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``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 FOUNDATION 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.
+ */
+
+/*
+ * Copyright (c) 1999, by UCHIYAMA Yasushi
+ * 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. The name of the developer may NOT be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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.
+ */
+
+/*
+ * Copyright (c) 1997-2001 Michael Shalayeff
+ * 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 HIS RELATIVES 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 MIND, 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 <sys/cdefs.h>
+__KERNEL_RCSID(0, "$NetBSD: smbios.c,v 1.1 2019/11/30 13:02:18 jmcneill Exp $");
+
+#include <sys/param.h>
+
+#include "efiboot.h"
+#include "smbios.h"
+
+struct smbios_entry smbios_entry;
+
+void
+smbios_init(uint8_t *p)
+{
+ const struct smb3hdr *sh = (const struct smb3hdr *)p;
+
+ smbios_entry.addr = (void *)(uintptr_t)sh->addr;
+ smbios_entry.len = sh->size;
+ smbios_entry.rev = sh->eprev;
+ smbios_entry.mjr = sh->majrev;
+ smbios_entry.min = sh->minrev;
+ smbios_entry.doc = sh->docrev;
+ smbios_entry.count = UINT16_MAX;
+}
+
+/*
+ * smbios_find_table() takes a caller supplied smbios struct type and
+ * a pointer to a handle (struct smbtable) returning one if the structure
+ * is sucessfully located and zero otherwise. Callers should take care
+ * to initilize the cookie field of the smbtable structure to zero before
+ * the first invocation of this function.
+ * Multiple tables of the same type can be located by repeadtly calling
+ * smbios_find_table with the same arguments.
+ */
+int
+smbios_find_table(uint8_t type, struct smbtable *st)
+{
+ uint8_t *va, *end;
+ struct smbtblhdr *hdr;
+ int ret = 0, tcount = 1;
+
+ va = smbios_entry.addr;
+ end = va + smbios_entry.len;
+
+ /*
+ * The cookie field of the smtable structure is used to locate
+ * multiple instances of a table of an arbitrary type. Following the
+ * sucessful location of a table, the type is encoded as bits 0:7 of
+ * the cookie value, the offset in terms of the number of structures
+ * preceding that referenced by the handle is encoded in bits 15:31.
+ */
+ if ((st->cookie & 0xfff) == type && st->cookie >> 16) {
+ if ((uint8_t *)st->hdr >= va && (uint8_t *)st->hdr < end) {
+ hdr = st->hdr;
+ if (hdr->type == type) {
+ va = (uint8_t *)hdr + hdr->size;
+ for (; va + 1 < end; va++)
+ if (*va == 0 && *(va + 1) == 0)
+ break;
+ va+= 2;
+ tcount = st->cookie >> 16;
+ }
+ }
+ }
+ for (; va + sizeof(struct smbtblhdr) < end && tcount <=
+ smbios_entry.count; tcount++) {
+ hdr = (struct smbtblhdr *)va;
+ if (hdr->type == type) {
+ ret = 1;
+ st->hdr = hdr;
+ st->tblhdr = va + sizeof(struct smbtblhdr);
+ st->cookie = (tcount + 1) << 16 | type;
+ break;
+ }
+ if (hdr->type == SMBIOS_TYPE_EOT)
+ break;
+ va+= hdr->size;
+ for (; va + 1 < end; va++)
+ if (*va == 0 && *(va + 1) == 0)
+ break;
+ va+=2;
+ }
+
+ return ret;
+}
+
+char *
+smbios_get_string(struct smbtable *st, uint8_t indx, char *dest, size_t len)
+{
+ uint8_t *va, *end;
+ char *ret = NULL;
+ int i;
+
+ va = (uint8_t *)st->hdr + st->hdr->size;
+ end = smbios_entry.addr + smbios_entry.len;
+ for (i = 1; va < end && i < indx && *va; i++)
+ while (*va++)
+ ;
+ if (i == indx) {
+ if (va + len < end) {
+ ret = dest;
+ memcpy(ret, va, len);
+ ret[len - 1] = '\0';
+ }
+ }
+
+ return ret;
+}
Index: src/sys/stand/efiboot/smbios.h
diff -u /dev/null src/sys/stand/efiboot/smbios.h:1.1
--- /dev/null Sat Nov 30 13:02:18 2019
+++ src/sys/stand/efiboot/smbios.h Sat Nov 30 13:02:18 2019
@@ -0,0 +1,287 @@
+/* $NetBSD: smbios.h,v 1.1 2019/11/30 13:02:18 jmcneill Exp $ */
+/*
+ * Copyright (c) 2006 Gordon Willem Klok <gk...@cogeco.ca>
+ * Copyright (c) 2005 Jordan Hargrave
+ * 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 AUTHORS AND CONTRIBUTORS ``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 AUTHORS 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.
+ */
+
+#define SMBIOS_UUID_NPRESENT 0x1
+#define SMBIOS_UUID_NSET 0x2
+
+/*
+ * Section 3.5 of "UUIDs and GUIDs" found at
+ * http://www.opengroup.org/dce/info/draft-leach-uuids-guids-01.txt
+ * specifies the string repersentation of a UUID.
+ */
+#define SMBIOS_UUID_REP "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x"
+#define SMBIOS_UUID_REPLEN 37 /* 16 zero padded values, 4 hyphens, 1 null */
+
+struct smbios_entry {
+ uint8_t rev;
+ uint8_t mjr;
+ uint8_t min;
+ uint8_t doc;
+ uint8_t *addr;
+ uint32_t len;
+ uint16_t count;
+};
+
+struct smbhdr {
+ uint32_t sig; /* "_SM_" */
+ uint8_t checksum; /* Entry point checksum */
+ uint8_t len; /* Entry point structure length */
+ uint8_t majrev; /* Specification major revision */
+ uint8_t minrev; /* Specification minor revision */
+ uint16_t mss; /* Maximum Structure Size */
+ uint8_t epr; /* Entry Point Revision */
+ uint8_t fa[5]; /* value determined by EPR */
+ uint8_t sasig[5]; /* Secondary Anchor "_DMI_" */
+ uint8_t sachecksum; /* Secondary Checksum */
+ uint16_t size; /* Length of structure table in bytes */
+ uint32_t addr; /* Structure table address */
+ uint16_t count; /* Number of SMBIOS structures */
+ uint8_t rev; /* BCD revision */
+} __packed;
+
+struct smb3hdr {
+ uint8_t sig[5]; /* "_SM3_" */
+ uint8_t checksum; /* Entry point structure checksum */
+ uint8_t len; /* Entry point structure length */
+ uint8_t majrev; /* Specification major revision */
+ uint8_t minrev; /* Specification minor revision */
+ uint8_t docrev; /* docrec of Specification */
+ uint8_t eprev; /* Entry point structure revision */
+#define SMBIOS3_EPREV_RESERVED 0
+#define SMBIOS3_EPREV_3_0 1 /* SMBIOS 3.0 */
+ uint8_t reverved;
+ uint32_t size; /* Length of structure table in bytes */
+ uint64_t addr; /* Structure table address */
+} __packed;
+
+struct smbtblhdr {
+ uint8_t type;
+ uint8_t size;
+ uint16_t handle;
+} __packed;
+
+struct smbtable {
+ struct smbtblhdr *hdr;
+ void *tblhdr;
+ uint32_t cookie;
+};
+
+#define SMBIOS_TYPE_BIOS 0
+#define SMBIOS_TYPE_SYSTEM 1
+#define SMBIOS_TYPE_BASEBOARD 2
+#define SMBIOS_TYPE_ENCLOSURE 3
+#define SMBIOS_TYPE_PROCESSOR 4
+#define SMBIOS_TYPE_MEMCTRL 5
+#define SMBIOS_TYPE_MEMMOD 6
+#define SMBIOS_TYPE_CACHE 7
+#define SMBIOS_TYPE_PORT 8
+#define SMBIOS_TYPE_SLOTS 9
+#define SMBIOS_TYPE_OBD 10
+#define SMBIOS_TYPE_OEM 11
+#define SMBIOS_TYPE_SYSCONFOPT 12
+#define SMBIOS_TYPE_BIOSLANG 13
+#define SMBIOS_TYPE_GROUPASSOC 14
+#define SMBIOS_TYPE_SYSEVENTLOG 15
+#define SMBIOS_TYPE_PHYMEM 16
+#define SMBIOS_TYPE_MEMDEV 17
+#define SMBIOS_TYPE_ECCINFO32 18
+#define SMBIOS_TYPE_MEMMAPARRAYADDR 19
+#define SMBIOS_TYPE_MEMMAPDEVADDR 20
+#define SMBIOS_TYPE_INBUILTPOINT 21
+#define SMBIOS_TYPE_PORTBATT 22
+#define SMBIOS_TYPE_SYSRESET 23
+#define SMBIOS_TYPE_HWSECUIRTY 24
+#define SMBIOS_TYPE_PWRCTRL 25
+#define SMBIOS_TYPE_VOLTPROBE 26
+#define SMBIOS_TYPE_COOLING 27
+#define SMBIOS_TYPE_TEMPPROBE 28
+#define SMBIOS_TYPE_CURRENTPROBE 29
+#define SMBIOS_TYPE_OOB_REMOTEACCESS 30
+#define SMBIOS_TYPE_BIS 31
+#define SMBIOS_TYPE_SBI 32
+#define SMBIOS_TYPE_ECCINFO64 33
+#define SMBIOS_TYPE_MGMTDEV 34
+#define SMBIOS_TYPE_MGTDEVCOMP 35
+#define SMBIOS_TYPE_MGTDEVTHRESH 36
+#define SMBIOS_TYPE_MEMCHANNEL 37
+#define SMBIOS_TYPE_IPMIDEV 38
+#define SMBIOS_TYPE_SPS 39
+#define SMBIOS_TYPE_INACTIVE 126
+#define SMBIOS_TYPE_EOT 127
+
+/*
+ * SMBIOS Structure Type 0 "BIOS Information"
+ * DMTF Specification DSP0134 Section: 3.3.1 p.g. 34
+ */
+struct smbios_struct_bios {
+ uint8_t vendor; /* string */
+ uint8_t version; /* string */
+ uint16_t startaddr;
+ uint8_t release; /* string */
+ uint8_t romsize;
+ uint64_t characteristics;
+ uint32_t charext;
+ uint8_t major_rel;
+ uint8_t minor_rel;
+ uint8_t ecf_mjr_rel; /* embedded controller firmware */
+ uint8_t ecf_min_rel; /* embedded controller firmware */
+} __packed;
+
+/*
+ * SMBIOS Structure Type 1 "System Information"
+ * DMTF Specification DSP0134 Section 3.3.2 p.g. 35
+ */
+
+struct smbios_sys {
+/* SMBIOS spec 2.0+ */
+ uint8_t vendor; /* string */
+ uint8_t product; /* string */
+ uint8_t version; /* string */
+ uint8_t serial; /* string */
+/* SMBIOS spec 2.1+ */
+ uint8_t uuid[16];
+ uint8_t wakeup;
+/* SMBIOS spec 2.4+ */
+ uint8_t sku; /* string */
+ uint8_t family; /* string */
+} __packed;
+
+/*
+ * SMBIOS Structure Type 2 "Base Board (Module) Information"
+ * DMTF Specification DSP0134 Section 3.3.3 p.g. 37
+ */
+struct smbios_board {
+ uint8_t vendor; /* string */
+ uint8_t product; /* string */
+ uint8_t version; /* string */
+ uint8_t serial; /* string */
+ uint8_t asset; /* string */
+ uint8_t feature; /* feature flags */
+ uint8_t location; /* location in chassis */
+ uint16_t handle; /* chassis handle */
+ uint8_t type; /* board type */
+ uint8_t noc; /* number of contained objects */
+} __packed;
+
+/*
+ * SMBIOS Structure Type 3 "System Enclosure or Chassis"
+ * DMTF Specification DSP0134 Section 3.1.1 p.g. 37
+ */
+struct smbios_chassis {
+ uint8_t vendor; /* string */
+ uint8_t shape;
+ uint8_t version; /* string */
+ uint8_t serial; /* string */
+ uint8_t asset; /* string */
+ uint8_t bustate;
+ uint8_t psstate;
+ uint8_t thstate;
+ uint8_t security;
+ uint32_t oemdata;
+ uint8_t height;
+ uint8_t powercords;
+ uint8_t noc; /* number of contained objects */
+} __packed;
+
+/*
+ * SMBIOS Structure Type 4 "Processor Information"
+ * DMTF Specification DSP0134 Section 3.1.1 p.g. 42
+ */
+struct smbios_processor {
+ uint8_t socket; /* string */
+ uint8_t type;
+ uint8_t family;
+ uint8_t vendor; /* string */
+ uint64_t cpuid;
+ uint8_t version; /* string */
+ uint8_t voltage;
+ uint16_t clkspeed;
+ uint16_t maxspeed;
+ uint16_t curspeed;
+ uint8_t status;
+ uint8_t upgrade;
+ uint8_t l1cache;
+ uint8_t l2cache;
+ uint8_t l3cache;
+ uint8_t serial; /* string */
+ uint8_t asset; /* string */
+ uint8_t part; /* string */
+ uint8_t cores; /* cores per socket */
+ uint8_t enabled; /* enabled cores per socket */
+ uint8_t threads; /* threads per socket */
+ uint16_t characteristics;
+ uint16_t family2; /* for values >= 255 */
+ uint16_t cores2; /* for values >= 255 */
+ uint16_t enabled2; /* for values >= 255 */
+ uint16_t threads2; /* for values >= 255 */
+} __packed;
+
+/*
+ * SMBIOS Structure Type 9 "Expansion slot"
+ */
+struct smbios_slot {
+ uint8_t designation;
+ uint8_t type;
+ uint8_t width;
+ uint8_t usage;
+ uint8_t length;
+ uint8_t slotid[2];
+ uint8_t characteristics[2];
+} __packed;
+
+#define SMBIOS_SLOT_ISA 0x03
+#define SMBIOS_SLOT_EISA 0x05
+
+/*
+ * SMBIOS Structure Type 38 "IPMI Information"
+ * DMTF Specification DSP0134 Section 3.3.39 p.g. 91
+ */
+struct smbios_ipmi {
+ uint8_t smipmi_if_type; /* IPMI Interface Type */
+ uint8_t smipmi_if_rev; /* BCD IPMI Revision */
+ uint8_t smipmi_i2c_address; /* I2C address of BMC */
+ uint8_t smipmi_nvram_address; /* I2C address of NVRAM
+ * storage */
+ uint64_t smipmi_base_address; /* Base address of BMC (BAR
+ * format */
+ uint8_t smipmi_base_flags; /* Flags field:
+ * bit 7:6 : register spacing
+ * 00 = byte
+ * 01 = dword
+ * 02 = word
+ * bit 4 : Lower bit BAR
+ * bit 3 : IRQ valid
+ * bit 2 : N/A
+ * bit 1 : Interrupt polarity
+ * bit 0 : Interrupt trigger */
+ uint8_t smipmi_irq; /* IRQ if applicable */
+} __packed;
+
+void smbios_init(uint8_t *);
+int smbios_find_table(uint8_t, struct smbtable *);
+char *smbios_get_string(struct smbtable *, uint8_t, char *, size_t);
