diff options
Diffstat (limited to 'usr.sbin/cpucontrol/intel.c')
| -rw-r--r-- | usr.sbin/cpucontrol/intel.c | 284 |
1 files changed, 0 insertions, 284 deletions
diff --git a/usr.sbin/cpucontrol/intel.c b/usr.sbin/cpucontrol/intel.c deleted file mode 100644 index 15ac939..0000000 --- a/usr.sbin/cpucontrol/intel.c +++ /dev/null @@ -1,284 +0,0 @@ -/*- - * Copyright (c) 2006, 2008 Stanislav Sedov <stas@FreeBSD.org>. - * 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 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 <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <assert.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <unistd.h> -#include <fcntl.h> -#include <err.h> - -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/mman.h> -#include <sys/ioctl.h> -#include <sys/ioccom.h> -#include <sys/cpuctl.h> - -#include <machine/cpufunc.h> -#include <machine/specialreg.h> - -#include "cpucontrol.h" -#include "intel.h" - -#define DEFAULT_UCODE_SIZE 2000 /* Size of update data if not specified. */ - -int -intel_probe(int fd) -{ - char vendor[13]; - int error; - cpuctl_cpuid_args_t idargs = { - .level = 0, - }; - - error = ioctl(fd, CPUCTL_CPUID, &idargs); - if (error < 0) { - WARN(0, "ioctl()"); - return (1); - } - ((uint32_t *)vendor)[0] = idargs.data[1]; - ((uint32_t *)vendor)[1] = idargs.data[3]; - ((uint32_t *)vendor)[2] = idargs.data[2]; - vendor[12] = '\0'; - if (strncmp(vendor, INTEL_VENDOR_ID, sizeof(INTEL_VENDOR_ID)) != 0) - return (1); - return (0); -} - -void -intel_update(const char *dev, const char *path) -{ - int fd, devfd; - struct stat st; - uint32_t *fw_image; - int have_ext_table; - uint32_t sum; - unsigned int i; - size_t payload_size; - intel_fw_header_t *fw_header; - intel_cpu_signature_t *ext_table; - intel_ext_header_t *ext_header; - uint32_t signature, flags; - int32_t revision; - ssize_t ext_size; - size_t ext_table_size; - void *fw_data; - size_t data_size, total_size; - cpuctl_msr_args_t msrargs = { - .msr = MSR_IA32_PLATFORM_ID, - }; - cpuctl_cpuid_args_t idargs = { - .level = 1, /* Signature. */ - }; - cpuctl_update_args_t args; - int error; - - assert(path); - assert(dev); - - fd = -1; - fw_image = MAP_FAILED; - ext_table = NULL; - ext_header = NULL; - devfd = open(dev, O_RDWR); - if (devfd < 0) { - WARN(0, "could not open %s for writing", dev); - return; - } - error = ioctl(devfd, CPUCTL_CPUID, &idargs); - if (error < 0) { - WARN(0, "ioctl(%s)", dev); - goto fail; - } - signature = idargs.data[0]; - error = ioctl(devfd, CPUCTL_RDMSR, &msrargs); - if (error < 0) { - WARN(0, "ioctl(%s)", dev); - goto fail; - } - - /* - * MSR_IA32_PLATFORM_ID contains flag in BCD in bits 52-50. - */ - flags = 1 << ((msrargs.data >> 50) & 7); - msrargs.msr = MSR_BIOS_SIGN; - error = ioctl(devfd, CPUCTL_RDMSR, &msrargs); - if (error < 0) { - WARN(0, "ioctl(%s)", dev); - goto fail; - } - revision = msrargs.data >> 32; /* Revision in the high dword. */ - WARNX(2, "found cpu type %#x family %#x model %#x stepping %#x.", - (signature >> 12) & 0x03, (signature >> 8) & 0x0f, - (signature >> 4) & 0x0f, (signature >> 0) & 0x0f); - /* - * Open firmware image. - */ - fd = open(path, O_RDONLY, 0); - if (fd < 0) { - WARN(0, "open(%s)", path); - return; - } - error = fstat(fd, &st); - if (error != 0) { - WARN(0, "fstat(%s)", path); - goto fail; - } - if (st.st_size < 0 || (unsigned)st.st_size < sizeof(*fw_header)) { - WARNX(2, "file too short: %s", path); - goto fail; - } - - /* - * mmap the whole image. - */ - fw_image = (uint32_t *)mmap(NULL, st.st_size, PROT_READ, - MAP_PRIVATE, fd, 0); - if (fw_image == MAP_FAILED) { - WARN(0, "mmap(%s)", path); - goto fail; - } - fw_header = (intel_fw_header_t *)fw_image; - if (fw_header->header_version != INTEL_HEADER_VERSION || - fw_header->loader_revision != INTEL_LOADER_REVISION) { - WARNX(2, "%s is not a valid intel firmware: version mismatch", - path); - goto fail; - } - /* - * According to spec, if data_size == 0, then size of ucode = 2000. - */ - if (fw_header->data_size == 0) - data_size = DEFAULT_UCODE_SIZE; - else - data_size = fw_header->data_size; - if (fw_header->total_size == 0) - total_size = data_size + sizeof(*fw_header); - else - total_size = fw_header->total_size; - if (total_size > (unsigned)st.st_size || st.st_size < 0) { - WARNX(2, "file too short: %s", path); - goto fail; - } - payload_size = data_size + sizeof(*fw_header); - - /* - * Check the primary checksum. - */ - sum = 0; - for (i = 0; i < (payload_size / sizeof(uint32_t)); i++) - sum += *((uint32_t *)fw_image + i); - if (sum != 0) { - WARNX(2, "%s: update data checksum invalid", path); - goto fail; - } - - /* - * Check if there is an extended signature table. - */ - ext_size = total_size - payload_size; - have_ext_table = 0; - - if (ext_size > (signed)sizeof(*ext_header)) { - ext_header = - (intel_ext_header_t *)((char *)fw_image + payload_size); - ext_table = (intel_cpu_signature_t *)(ext_header + 1); - - /* - * Check the extended table size. - */ - ext_table_size = sizeof(*ext_header) + - ext_header->sig_count * sizeof(*ext_table); - if (ext_table_size + payload_size > total_size) { - WARNX(2, "%s: broken extended signature table", path); - goto no_table; - } - - /* - * Check the extended table signature. - */ - sum = 0; - for (i = 0; i < (ext_table_size / sizeof(uint32_t)); i++) - sum += *((uint32_t *)ext_header + i); - if (sum != 0) { - WARNX(2, "%s: extended signature table checksum invalid", - path); - goto no_table; - } - have_ext_table = 1; - } - -no_table: - fw_data = fw_header + 1; /* Pointer to the update data. */ - - /* - * Check if the given image is ok for this cpu. - */ - if (signature == fw_header->cpu_signature && - (flags & fw_header->cpu_flags) != 0) - goto matched; - else if (have_ext_table != 0) { - for (i = 0; i < ext_header->sig_count; i++) { - uint32_t sig = ext_table[i].cpu_signature; - if (signature == sig && - (flags & ext_table[i].cpu_flags) != 0) - goto matched; - } - } else - goto fail; - -matched: - if (revision >= fw_header->revision) { - WARNX(1, "skipping %s of rev %#x: up to date", - path, fw_header->revision); - return; - } - fprintf(stderr, "%s: updating cpu %s from rev %#x to rev %#x... ", - path, dev, revision, fw_header->revision); - args.data = fw_data; - args.size = data_size; - error = ioctl(devfd, CPUCTL_UPDATE, &args); - if (error < 0) { - fprintf(stderr, "failed.\n"); - WARN(0, "ioctl()"); - goto fail; - } - fprintf(stderr, "done.\n"); - -fail: - if (fw_image != MAP_FAILED) - if (munmap(fw_image, st.st_size) != 0) - warn("munmap(%s)", path); - if (devfd >= 0) - close(devfd); - if (fd >= 0) - close(fd); - return; -} |
