From 9e877ec60d177565776b20e3d61f723a9552ee34 Mon Sep 17 00:00:00 2001 From: Patrick Rudolph Date: Fri, 20 Sep 2019 12:53:09 +0200 Subject: util/supermicro: Add and use new tool smcbiosinfo The BMC and tools interacting with it depend on metadata placed inside the ROM in order the flash the BIOS. Add a new tool smcbiosinfo, integrate it into the build system, and generate a 128byte metadata file called smcbiosinfo.bin on build. You need to provide the BoardID for every SMC mainboard through a new Kconfig symbol: SUPERMICRO_BOARDID Some fields are unknown, but it's sufficient to flash it using SMC vendor tools. Tested on Supermicro X11SSH: * Flashing using the WebUI works * Flashing using SMCIPMITool works No further validation is done on the firmware. Change-Id: Id608c2ce78614b45a2fd0b26d97d666f02223998 Signed-off-by: Patrick Rudolph Reviewed-on: https://review.coreboot.org/c/coreboot/+/35484 Tested-by: build bot (Jenkins) Reviewed-by: Philipp Deppenwiese Reviewed-by: Nico Huber --- util/supermicro/smcbiosinfo/description.md | 1 + util/supermicro/smcbiosinfo/smcbiosinfo.c | 282 +++++++++++++++++++++++++++++ 2 files changed, 283 insertions(+) create mode 100644 util/supermicro/smcbiosinfo/description.md create mode 100644 util/supermicro/smcbiosinfo/smcbiosinfo.c (limited to 'util/supermicro/smcbiosinfo') diff --git a/util/supermicro/smcbiosinfo/description.md b/util/supermicro/smcbiosinfo/description.md new file mode 100644 index 0000000000..21170eb6f0 --- /dev/null +++ b/util/supermicro/smcbiosinfo/description.md @@ -0,0 +1 @@ +Generates SMC biosinfo for BMC BIOS updates `C` diff --git a/util/supermicro/smcbiosinfo/smcbiosinfo.c b/util/supermicro/smcbiosinfo/smcbiosinfo.c new file mode 100644 index 0000000000..ae2a17b469 --- /dev/null +++ b/util/supermicro/smcbiosinfo/smcbiosinfo.c @@ -0,0 +1,282 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2019 9elements Agency GmbH + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +/* Place the following struct somewhere in the ROM: */ +struct SMC_BIOS_Update { + uint8_t magic0[4]; // always 0xaa00b1ed + char magic1[4]; // always $FID + uint8_t magic2[2]; // always 0x7804 + uint8_t space0; // always zero + // SMCinfotool doesn't care for the first letter + // The BMC webinterface does. + char boardid[9]; // "100000000" + uint8_t space1[15]; // unknown data + uint8_t space2; // always 0x1f + char ukn_majorVer[2];// unknown + uint8_t space3; // always zero + char ukn_minorVer[2];// unknown + uint8_t space4; // always zero + char majorVer[3]; // BIOS major version + char minorVer[2]; // BIOS minor version + uint8_t space5; // always zero + uint16_t year; // year + uint8_t month; // month + uint8_t day; // day + uint32_t space6; // unknown data + uint8_t space7; // all ones + char str[15]; // "SUPERMSMCI--MB1" + uint8_t space8[3]; // always zero + uint64_t space9[6]; // all ones +} __packed; + +static const char *optstring = "b:i:o:h"; + +static struct option long_options[] = { + {"boardid", required_argument, 0, 'b' }, + {"input", required_argument, 0, 'i' }, + {"output", required_argument, 0, 'o' }, + {"help", no_argument, 0, 'h' }, +}; + +static void usage(void) +{ + printf("smcbiosinfo: Create BIOSInfo for BMC BIOS updates\n"); + printf("Usage: smcbiosinfo [options] -i build.h -b -o \n"); + printf("-b | --boardid The board ID assigned by SMC\n"); + printf("-i | --input The build.h file to parse\n"); + printf("-o | --output The file to generate\n"); + printf("-h | --help Print this help\n"); +} + +static int bcd2int(int hex) +{ + if (hex > 0xff) + return -1; + return ((hex & 0xF0) >> 4) * 10 + (hex & 0x0F); +} + +static char *get_line(char *fn, char *match) +{ + ssize_t read; + char *line = NULL; + char *ret = NULL; + size_t len = 0; + + FILE *fp = fopen(fn, "r"); + if (fp == NULL) { + fprintf(stderr, "E: Couldn't open file '%s'\n", fn); + return NULL; + } + + while ((read = getline(&line, &len, fp)) != -1) { + if (strstr(line, match) != NULL) { + ret = strdup(strstr(line, match) + strlen(match)); + break; + } + } + + if (!ret) + fprintf(stderr, "E: %s not found in %s\n", match, fn); + + fclose(fp); + return ret; +} + +static int get_line_as_int(char *fn, char *match, int bcd) +{ + int ret = -1; + char *s = get_line(fn, match); + if (s && strlen(s) > 0) { + char *endptr; + ret = strtol(s, &endptr, 0); + if (*endptr != '\0' && *endptr != '\n') { + fprintf(stderr, "E: Couldn't parse number for key '%s'\n", match); + return -1; + } + if (bcd) + ret = bcd2int(ret); + free(s); + } else { + fprintf(stderr, "E: Got invalid line for key '%s'\n", match); + } + + return ret; +} + +int main(int argc, char **argv) +{ + int c; + int ret = 1; + char *filename = NULL; + char *inputfilename = NULL; + char *boardid = NULL; + int num; + + while (1) { + int optindex = 0; + + c = getopt_long(argc, argv, optstring, long_options, &optindex); + + if (c == -1) + break; + + switch (c) { + case 'b': + boardid = strdup(optarg); + break; + case 'i': + inputfilename = strdup(optarg); + break; + case 'o': + filename = strdup(optarg); + break; + case 'h': + ret = 0; /* fallthrough */ + case '?': + usage(); + goto out; + default: + break; + } + } + + if (!inputfilename) { + fprintf(stderr, "E: Must specify build.h filename\n"); + goto out; + } + if (!filename) { + fprintf(stderr, "E: Must specify a destination filename\n"); + goto out; + } + + if (!boardid || strlen(boardid) == 0) { + fprintf(stderr, "E: Board ID must be set\n"); + goto out; + } + if (strlen(boardid) > 8) { + fprintf(stderr, "E: Board ID must be less than 8 characters\n"); + goto out; + } + + // generate the table + + struct SMC_BIOS_Update sbu = { + {0xed, 0xb1, 0x00, 0xaa}, + "$FID", + {0x04, 0x78}, + 0, // space + "100000000", // boardid + {}, // unknown data + 0x1f, // space + "05", // unknown data + 0, // zero + "06", // unknown data + 0, // zero + "000", // major + "00", // minor + 0, // zero + 0, // year + 0, // month + 0, //day + 0, // unknown data + 0xff, // space + "SUPERMSMCI--MB1", + {0, 0, 0}, // all zero + {~0, ~0, ~0, ~0, ~0, ~0}, // all ones + }; + + num = get_line_as_int(inputfilename, "COREBOOT_MAJOR_VERSION", 0); + if (num < 0) + goto out; + + if (num < 999) { + char tmp[4]; + snprintf(tmp, sizeof(tmp), "%03d", num); + memcpy(&sbu.majorVer, &tmp, sizeof(sbu.majorVer)); + } else { + fprintf(stderr, "E: Unsupported coreboot major version\n"); + goto out; + } + + num = get_line_as_int(inputfilename, "COREBOOT_MINOR_VERSION", 0); + if (num < 0) + goto out; + + if (num < 99) { + char tmp[3]; + snprintf(tmp, sizeof(tmp), "%02d", num); + memcpy(&sbu.minorVer, &tmp, sizeof(sbu.minorVer)); + } else { + fprintf(stderr, "E: Unsupported coreboot minor version\n"); + goto out; + } + + num = get_line_as_int(inputfilename, "COREBOOT_BUILD_YEAR_BCD", 1); + if (num < 0) + goto out; + sbu.year = 2000 + num; + + num = get_line_as_int(inputfilename, "COREBOOT_BUILD_MONTH_BCD", 1); + if (num < 0) + goto out; + sbu.month = num; + + num = get_line_as_int(inputfilename, "COREBOOT_BUILD_DAY_BCD", 1); + if (num < 0) + goto out; + sbu.day = num; + + memcpy(&sbu.boardid[1], boardid, strlen(boardid)); + + // write the table + FILE *fd = fopen(filename, "wb"); + if (!fd) { + fprintf(stderr, "E: %s open failed: %s\n", filename, strerror(errno)); + goto out; + } + + if (fwrite(&sbu, 1, sizeof(sbu), fd) != sizeof(sbu)) { + fprintf(stderr, "E: %s write failed: %s\n", filename, strerror(errno)); + fclose(fd); + goto out; + } + + if (fclose(fd)) { + fprintf(stderr, "E: %s close failed: %s\n", filename, strerror(errno)); + goto out; + } + + ret = 0; +out: + if (ret > 0) + fprintf(stderr, "E: Error creating '%s'\n", filename); + + free(filename); + + exit(ret); + + return 0; +} -- cgit v1.2.3