diff options
Diffstat (limited to 'util/viatool/viatool.c')
| -rw-r--r-- | util/viatool/viatool.c | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/util/viatool/viatool.c b/util/viatool/viatool.c new file mode 100644 index 0000000000..3f19f2819c --- /dev/null +++ b/util/viatool/viatool.c @@ -0,0 +1,256 @@ +/* + * viatool - dump all registers on an Intel CPU + chipset based system. + * + * Copyright (C) 2008-2010 by coresystems GmbH + * written by Stefan Reinauer <stepan@coresystems.de> + * Copyright (C) 2009 Carl-Daniel Hailfinger + * Copyright (C) 2013 Alexandru Gagniuc + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <inttypes.h> +#include <getopt.h> +#include <fcntl.h> +#include <sys/mman.h> +#include <unistd.h> +#include "viatool.h" + +/* + * http://pci-ids.ucw.cz/read/PC/8086 + * http://en.wikipedia.org/wiki/Intel_Tick-Tock + * http://en.wikipedia.org/wiki/List_of_Intel_chipsets + * http://en.wikipedia.org/wiki/Intel_Xeon_chipsets + */ +static const struct { + uint16_t vendor_id, device_id; + char *name; +} supported_chips_list[] = { + { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX900_SATA, "VX900 SATA"}, + /* Host bridges/DRAM controllers (Northbridges) */ + { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX900, "VX900"}, + /* Southbridges (LPC controllers) */ + { PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX900_LPC, "VX900" }, +}; + +#ifndef __DARWIN__ +static int fd_mem; + +void *map_physical(uint64_t phys_addr, size_t len) +{ + void *virt_addr; + + virt_addr = mmap(0, len, PROT_WRITE | PROT_READ, MAP_SHARED, + fd_mem, (off_t) phys_addr); + + if (virt_addr == MAP_FAILED) { + printf("Error mapping physical memory 0x%08" PRIx64 "[0x%zx]\n", + phys_addr, len); + return NULL; + } + + return virt_addr; +} + +void unmap_physical(void *virt_addr, size_t len) +{ + munmap(virt_addr, len); +} +#endif + +void print_version(void) +{ + printf("inteltool v%s -- ", VIATOOL_VERSION); + printf("Copyright (C) 2013 Alexandru Gagniuc\n\n"); + printf( + "This program is free software: you can redistribute it and/or modify\n" + "it under the terms of the GNU General Public License as published by\n" + "the Free Software Foundation, version 2 of the License.\n\n" + "This program is distributed in the hope that it will be useful,\n" + "but WITHOUT ANY WARRANTY; without even the implied warranty of\n" + "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" + "GNU General Public License for more details.\n\n" + "You should have received a copy of the GNU General Public License\n" + "along with this program. If not, see <http://www.gnu.org/licenses/>.\n\n"); +} + +void print_usage(const char *name) +{ + printf("usage: %s [-vh?gGrpmedPMa]\n", name); + printf("\n" + " -v | --version: print the version\n" + " -h | --help: print this help\n\n" + " -M | --msrs: dump CPU MSRs\n" + " -a | --all: dump all known registers\n" + " -q | --quirks: dump hierarchical configs\n" + "\n"); + exit(1); +} + +int main(int argc, char *argv[]) +{ + struct pci_access *pacc; + struct pci_dev *sb = NULL, *nb, *dev; + int i, opt, option_index = 0; + unsigned int id; + + char *sbname = "unknown", *nbname = "unknown"; + + int dump_coremsrs = 0, dump_quirks = 0; + + static struct option long_options[] = { + {"version", 0, 0, 'v'}, + {"help", 0, 0, 'h'}, + {"mchbar", 0, 0, 'm'}, + {"msrs", 0, 0, 'M'}, + {"quirks", 0, 0, 'q'}, + {"all", 0, 0, 'a'}, + {0, 0, 0, 0} + }; + + while ((opt = getopt_long(argc, argv, "vh?gGrpmedPMaA", + long_options, &option_index)) != EOF) { + switch (opt) { + case 'v': + print_version(); + exit(0); + break; + case 'M': + dump_coremsrs = 1; + break; + case 'q': + dump_quirks = 1; + break; + case 'a': + dump_coremsrs = 1; + dump_quirks = 1; + break; + case 'h': + case '?': + default: + print_usage(argv[0]); + exit(0); + break; + } + } + +#if defined(__FreeBSD__) + if (open("/dev/io", O_RDWR) < 0) { + perror("/dev/io"); +#else + if (iopl(3)) { + perror("iopl"); +#endif + printf("You need to be root.\n"); + exit(1); + } + +#ifndef __DARWIN__ + if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) { + perror("Can not open /dev/mem"); + exit(1); + } +#endif + + pacc = pci_alloc(); + pci_init(pacc); + pci_scan_bus(pacc); + + /* Find the required devices */ + for (dev = pacc->devices; dev; dev = dev->next) { + pci_fill_info(dev, PCI_FILL_CLASS); + /* The ISA/LPC bridge can be 0x1f, 0x07, or 0x04 so we probe. */ + if (dev->device_class == 0x0601) { /* ISA/LPC bridge */ + if (sb == NULL) + sb = dev; + else + fprintf(stderr, "Multiple devices with class ID" + " 0x0601, using %02x%02x:%02x.%02x\n", + dev->domain, dev->bus, dev->dev, + dev->func); + } + } + + if (!sb) { + printf("No southbridge found.\n"); + exit(1); + } + + pci_fill_info(sb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS); + + if (sb->vendor_id != PCI_VENDOR_ID_VIA) { + printf("Not a VIA southbridge.\n"); + exit(1); + } + + nb = pci_get_dev(pacc, 0, 0, 0x00, 0); + if (!nb) { + printf("No northbridge found.\n"); + exit(1); + } + + pci_fill_info(nb, PCI_FILL_IDENT|PCI_FILL_BASES|PCI_FILL_SIZES|PCI_FILL_CLASS); + + if (nb->vendor_id != PCI_VENDOR_ID_VIA) { + printf("Not a VIA northbridge.\n"); + exit(1); + } + + id = cpuid(1); + + /* Intel has suggested applications to display the family of a CPU as + * the sum of the "Family" and the "Extended Family" fields shown + * above, and the model as the sum of the "Model" and the 4-bit + * left-shifted "Extended Model" fields. + * http://download.intel.com/design/processor/applnots/24161832.pdf + */ + printf("CPU: Processor Type: %x, Family %x, Model %x, Stepping %x\n", + (id >> 12) & 0x3, ((id >> 8) & 0xf) + ((id >> 20) & 0xff), + ((id >> 12) & 0xf0) + ((id >> 4) & 0xf), (id & 0xf)); + + /* Determine names */ + for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++) + if (nb->device_id == supported_chips_list[i].device_id) + nbname = supported_chips_list[i].name; + for (i = 0; i < ARRAY_SIZE(supported_chips_list); i++) + if (sb->device_id == supported_chips_list[i].device_id) + sbname = supported_chips_list[i].name; + + printf("Northbridge: %04x:%04x (%s)\n", + nb->vendor_id, nb->device_id, nbname); + + printf("Southbridge: %04x:%04x (%s)\n", + sb->vendor_id, sb->device_id, sbname); + + /* Now do the deed */ + + if (dump_coremsrs) { + print_intel_core_msrs(); + printf("\n\n"); + } + + if (dump_quirks) { + print_quirks_north(nb, pacc); + print_quirks_south(sb, pacc); + } + + /* Clean up */ + pci_free_dev(nb); + // pci_free_dev(sb); // TODO: glibc detected "double free or corruption" + pci_cleanup(pacc); + + return 0; +} |