grub-core/commands/lsacpi.c

   1 /* acpi.c  - Display acpi tables.  */
   2 /*
   3  *  GRUB  --  GRand Unified Bootloader
   4  *  Copyright (C) 2008  Free Software Foundation, Inc.
   5  *
   6  *  GRUB is free software: you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation, either version 3 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  GRUB is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19 #include <grub/types.h>
  20 #include <grub/mm.h>
  21 #include <grub/misc.h>
  22 #include <grub/normal.h>
  23 #include <grub/acpi.h>
  24 #include <grub/extcmd.h>
  25 #include <grub/i18n.h>
  26 #include <grub/dl.h>
  27
  28 static void
  29 print_strn (grub_uint8_t *str, grub_size_t len)
  30 {
  31   for (; *str && len; str++, len--)
  32     grub_printf ("%c", *str);
  33   for (len++; len; len--)
  34     grub_printf (" ");
  35 }
  36
  37 #define print_field(x) print_strn(x, sizeof (x))
  38
  39 static void
  40 disp_acpi_table (struct grub_acpi_table_header *t)
  41 {
  42   print_field (t->signature);
  43   grub_printf ("%4" PRIuGRUB_UINT32_T "B rev=%u OEM=", t->length, t->revision);
  44   print_field (t->oemid);
  45   print_field (t->oemtable);
  46   grub_printf ("OEMrev=%08" PRIxGRUB_UINT32_T " ", t->oemrev);
  47   print_field (t->creator_id);
  48   grub_printf (" %08" PRIxGRUB_UINT32_T "\n", t->creator_rev);
  49 }
  50
  51 static void
  52 disp_madt_table (struct grub_acpi_madt *t)
  53 {
  54   struct grub_acpi_madt_entry_header *d;
  55   grub_uint32_t len;
  56
  57   disp_acpi_table (&t->hdr);
  58   grub_printf ("Local APIC=%08" PRIxGRUB_UINT32_T "  Flags=%08"
  59                PRIxGRUB_UINT32_T "\n",
  60                t->lapic_addr, t->flags);
  61   len = t->hdr.length - sizeof (struct grub_acpi_madt);
  62   d = t->entries;
  63   for (;len > 0; len -= d->len, d = (void *) ((grub_uint8_t *) d + d->len))
  64     {
  65       grub_printf ("  type=%x l=%u ", d->type, d->len);
  66
  67       switch (d->type)
  68         {
  69         case GRUB_ACPI_MADT_ENTRY_TYPE_INTERRUPT_OVERRIDE:
  70           {
  71             struct grub_acpi_madt_entry_interrupt_override *dt = (void *) d;
  72             grub_printf ("Int Override bus=%x src=%x GSI=%08x Flags=%04x\n",
  73                          dt->bus, dt->source, dt->global_sys_interrupt,
  74                          dt->flags);
  75           }
  76           break;
  77         case GRUB_ACPI_MADT_ENTRY_TYPE_SAPIC:
  78           {
  79             struct grub_acpi_madt_entry_sapic *dt = (void *) d;
  80             grub_printf ("IOSAPIC Id=%02x GSI=%08x Addr=%016" PRIxGRUB_UINT64_T
  81                          "\n",
  82                          dt->id, dt->global_sys_interrupt_base,
  83                          dt->addr);
  84           }
  85           break;
  86         case GRUB_ACPI_MADT_ENTRY_TYPE_LSAPIC:
  87           {
  88             struct grub_acpi_madt_entry_lsapic *dt = (void *) d;
  89             grub_printf ("LSAPIC ProcId=%02x ID=%02x EID=%02x Flags=%x",
  90                          dt->cpu_id, dt->id, dt->eid, dt->flags);
  91             if (dt->flags & GRUB_ACPI_MADT_ENTRY_SAPIC_FLAGS_ENABLED)
  92               grub_printf (" Enabled\n");
  93             else
  94               grub_printf (" Disabled\n");
  95             if (d->len > sizeof (struct grub_acpi_madt_entry_sapic))
  96               grub_printf ("    UID val=%08x, Str=%s\n", dt->cpu_uid,
  97                            dt->cpu_uid_str);
  98           }
  99           break;
 100         case GRUB_ACPI_MADT_ENTRY_TYPE_PLATFORM_INT_SOURCE:
 101           {
 102             struct grub_acpi_madt_entry_platform_int_source *dt = (void *) d;
 103             static const char * const platint_type[] =
 104               {"Nul", "PMI", "INIT", "CPEI"};
 105
 106             grub_printf ("Platform INT flags=%04x type=%02x (%s)"
 107                          " ID=%02x EID=%02x\n",
 108                          dt->flags, dt->inttype,
 109                          (dt->inttype < ARRAY_SIZE (platint_type))
 110                          ? platint_type[dt->inttype] : "??", dt->cpu_id,
 111                          dt->cpu_eid);
 112             grub_printf ("      IOSAPIC Vec=%02x GSI=%08x source flags=%08x\n",
 113                          dt->sapic_vector, dt->global_sys_int, dt->src_flags);
 114           }
 115           break;
 116         default:
 117           grub_printf (" ??\n");
 118         }
 119     }
 120 }
 121
 122 static void
 123 disp_acpi_xsdt_table (struct grub_acpi_table_header *t)
 124 {
 125   grub_uint32_t len;
 126   grub_uint64_t *desc;
 127
 128   disp_acpi_table (t);
 129   len = t->length - sizeof (*t);
 130   desc = (grub_uint64_t *) (t + 1);
 131   for (; len > 0; desc++, len -= sizeof (*desc))
 132     {
 133       if (sizeof (grub_addr_t) == 4 && *desc >= (1ULL << 32))
 134         {
 135           grub_printf ("Unreachable table\n");
 136           continue;
 137         }
 138       t = (struct grub_acpi_table_header *) (grub_addr_t) *desc;
 139
 140       if (t == NULL)
 141         continue;
 142
 143       if (grub_memcmp (t->signature, GRUB_ACPI_MADT_SIGNATURE,
 144                        sizeof (t->signature)) == 0)
 145         disp_madt_table ((struct grub_acpi_madt *) t);
 146       else
 147         disp_acpi_table (t);
 148     }
 149 }
 150
 151 static void
 152 disp_acpi_rsdt_table (struct grub_acpi_table_header *t)
 153 {
 154   grub_uint32_t len;
 155   grub_uint32_t *desc;
 156
 157   disp_acpi_table (t);
 158   len = t->length - sizeof (*t);
 159   desc = (grub_uint32_t *) (t + 1);
 160   for (; len > 0; desc++, len -= sizeof (*desc))
 161     {
 162       t = (struct grub_acpi_table_header *) (grub_addr_t) *desc;
 163
 164       if (t == NULL)
 165         continue;
 166
 167       if (grub_memcmp (t->signature, GRUB_ACPI_MADT_SIGNATURE,
 168                        sizeof (t->signature)) == 0)
 169         disp_madt_table ((struct grub_acpi_madt *) t);
 170       else
 171         disp_acpi_table (t);
 172     }
 173 }
 174
 175 static void
 176 disp_acpi_rsdpv1 (struct grub_acpi_rsdp_v10 *rsdp)
 177 {
 178   print_field (rsdp->signature);
 179   grub_printf ("chksum:%02x, OEM-ID: ", rsdp->checksum);
 180   print_field (rsdp->oemid);
 181   grub_printf ("rev=%d\n", rsdp->revision);
 182   grub_printf ("RSDT=%08" PRIxGRUB_UINT32_T "\n", rsdp->rsdt_addr);
 183 }
 184
 185 static void
 186 disp_acpi_rsdpv2 (struct grub_acpi_rsdp_v20 *rsdp)
 187 {
 188   disp_acpi_rsdpv1 (&rsdp->rsdpv1);
 189   grub_printf ("len=%d XSDT=%016" PRIxGRUB_UINT64_T "\n", rsdp->length,
 190                rsdp->xsdt_addr);
 191 }
 192
 193 static const struct grub_arg_option options[] = {
 194   {"v1", '1', 0, N_("Show v1 tables only."), 0, ARG_TYPE_NONE},
 195   {"v2", '2', 0, N_("Show v2 and v3 tablesv only."), 0, ARG_TYPE_NONE}
 196 };
 197
 198 static grub_err_t
 199 grub_cmd_lsacpi (struct grub_extcmd_context *ctxt,
 200                  int argc __attribute__ ((unused)),
 201                  char **args __attribute__ ((unused)))
 202 {
 203   if (!ctxt->state[1].set)
 204     {
 205       struct grub_acpi_rsdp_v10 *rsdp1 = grub_acpi_get_rsdpv1 ();
 206       if (!rsdp1)
 207         grub_printf ("No RSDPv1\n");
 208       else
 209         {
 210           grub_printf ("RSDPv1 signature:");
 211           disp_acpi_rsdpv1 (rsdp1);
 212           disp_acpi_rsdt_table ((void *) (grub_addr_t) rsdp1->rsdt_addr);
 213         }
 214     }
 215
 216   if (!ctxt->state[0].set)
 217     {
 218       struct grub_acpi_rsdp_v20 *rsdp2 = grub_acpi_get_rsdpv2 ();
 219       if (!rsdp2)
 220         grub_printf ("No RSDPv2\n");
 221       else
 222         {
 223           if (sizeof (grub_addr_t) == 4 && rsdp2->xsdt_addr >= (1ULL << 32))
 224               grub_printf ("Unreachable RSDPv2\n");
 225           else
 226             {
 227               grub_printf ("RSDPv2 signature:");
 228               disp_acpi_rsdpv2 (rsdp2);
 229               disp_acpi_xsdt_table ((void *) (grub_addr_t) rsdp2->xsdt_addr);
 230               grub_printf ("\n");
 231             }
 232         }
 233     }
 234   return GRUB_ERR_NONE;
 235 }
 236
 237 static grub_extcmd_t cmd;
 238
 239 GRUB_MOD_INIT(lsapi)
 240 {
 241   cmd = grub_register_extcmd ("lsacpi", grub_cmd_lsacpi, GRUB_COMMAND_FLAG_BOTH,
 242                               N_("[-1|-2]"),
 243                               N_("Show ACPI information."), options);
 244 }
 245
 246 GRUB_MOD_FINI(lsacpi)
 247 {
 248   grub_unregister_extcmd (cmd);
 249 }
 250
 251