/* acpi.c - Display acpi tables. */ /* * GRUB -- GRand Unified Bootloader * Copyright (C) 2008 Free Software Foundation, Inc. * * GRUB 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, either version 3 of the License, or * (at your option) any later version. * * GRUB 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 GRUB. If not, see . */ #include #include #include #include #include #include #include #include #pragma GCC diagnostic ignored "-Wcast-align" GRUB_MOD_LICENSE ("GPLv3+"); static void print_strn (grub_uint8_t *str, grub_size_t len) { for (; *str && len; str++, len--) grub_printf ("%c", *str); for (len++; len; len--) grub_printf (" "); } #define print_field(x) print_strn(x, sizeof (x)) static void disp_acpi_table (struct grub_acpi_table_header *t) { print_field (t->signature); grub_printf ("%4" PRIuGRUB_UINT32_T "B rev=%u chksum=0x%02x (%s) OEM=", t->length, t->revision, t->checksum, grub_byte_checksum (t, t->length) == 0 ? "valid" : "invalid"); print_field (t->oemid); print_field (t->oemtable); grub_printf ("OEMrev=%08" PRIxGRUB_UINT32_T " ", t->oemrev); print_field (t->creator_id); grub_printf (" %08" PRIxGRUB_UINT32_T "\n", t->creator_rev); } static void disp_madt_table (struct grub_acpi_madt *t) { struct grub_acpi_madt_entry_header *d; grub_uint32_t len; disp_acpi_table (&t->hdr); grub_printf ("Local APIC=%08" PRIxGRUB_UINT32_T " Flags=%08" PRIxGRUB_UINT32_T "\n", t->lapic_addr, t->flags); len = t->hdr.length - sizeof (struct grub_acpi_madt); d = t->entries; for (;len > 0; len -= d->len, d = (void *) ((grub_uint8_t *) d + d->len)) { switch (d->type) { case GRUB_ACPI_MADT_ENTRY_TYPE_LAPIC: { struct grub_acpi_madt_entry_lapic *dt = (void *) d; grub_printf (" LAPIC ACPI_ID=%02x APIC_ID=%02x Flags=%08x\n", dt->acpiid, dt->apicid, dt->flags); if (dt->hdr.len != sizeof (*dt)) grub_printf (" table size mismatch %d != %d\n", dt->hdr.len, (int) sizeof (*dt)); break; } case GRUB_ACPI_MADT_ENTRY_TYPE_IOAPIC: { struct grub_acpi_madt_entry_ioapic *dt = (void *) d; grub_printf (" IOAPIC ID=%02x address=%08x GSI=%08x\n", dt->id, dt->address, dt->global_sys_interrupt); if (dt->hdr.len != sizeof (*dt)) grub_printf (" table size mismatch %d != %d\n", dt->hdr.len, (int) sizeof (*dt)); if (dt->pad) grub_printf (" non-zero pad: %02x\n", dt->pad); break; } case GRUB_ACPI_MADT_ENTRY_TYPE_INTERRUPT_OVERRIDE: { struct grub_acpi_madt_entry_interrupt_override *dt = (void *) d; grub_printf (" Int Override bus=%x src=%x GSI=%08x Flags=%04x\n", dt->bus, dt->source, dt->global_sys_interrupt, dt->flags); if (dt->hdr.len != sizeof (*dt)) grub_printf (" table size mismatch %d != %d\n", dt->hdr.len, (int) sizeof (*dt)); } break; case GRUB_ACPI_MADT_ENTRY_TYPE_LAPIC_NMI: { struct grub_acpi_madt_entry_lapic_nmi *dt = (void *) d; grub_printf (" LAPIC_NMI ACPI_ID=%02x Flags=%04x lint=%02x\n", dt->acpiid, dt->flags, dt->lint); if (dt->hdr.len != sizeof (*dt)) grub_printf (" table size mismatch %d != %d\n", dt->hdr.len, (int) sizeof (*dt)); break; } case GRUB_ACPI_MADT_ENTRY_TYPE_SAPIC: { struct grub_acpi_madt_entry_sapic *dt = (void *) d; grub_printf (" IOSAPIC Id=%02x GSI=%08x Addr=%016" PRIxGRUB_UINT64_T "\n", dt->id, dt->global_sys_interrupt_base, dt->addr); if (dt->hdr.len != sizeof (*dt)) grub_printf (" table size mismatch %d != %d\n", dt->hdr.len, (int) sizeof (*dt)); if (dt->pad) grub_printf (" non-zero pad: %02x\n", dt->pad); } break; case GRUB_ACPI_MADT_ENTRY_TYPE_LSAPIC: { struct grub_acpi_madt_entry_lsapic *dt = (void *) d; grub_printf (" LSAPIC ProcId=%02x ID=%02x EID=%02x Flags=%x", dt->cpu_id, dt->id, dt->eid, dt->flags); if (dt->flags & GRUB_ACPI_MADT_ENTRY_SAPIC_FLAGS_ENABLED) grub_printf (" Enabled\n"); else grub_printf (" Disabled\n"); if (d->len > sizeof (struct grub_acpi_madt_entry_sapic)) grub_printf (" UID val=%08x, Str=%s\n", dt->cpu_uid, dt->cpu_uid_str); if (dt->hdr.len != sizeof (*dt) + grub_strlen ((char *) dt->cpu_uid_str) + 1) grub_printf (" table size mismatch %d != %d\n", dt->hdr.len, (int) sizeof (*dt)); if (dt->pad[0] || dt->pad[1] || dt->pad[2]) grub_printf (" non-zero pad: %02x%02x%02x\n", dt->pad[0], dt->pad[1], dt->pad[2]); } break; case GRUB_ACPI_MADT_ENTRY_TYPE_PLATFORM_INT_SOURCE: { struct grub_acpi_madt_entry_platform_int_source *dt = (void *) d; static const char * const platint_type[] = {"Nul", "PMI", "INIT", "CPEI"}; grub_printf (" Platform INT flags=%04x type=%02x (%s)" " ID=%02x EID=%02x\n", dt->flags, dt->inttype, (dt->inttype < ARRAY_SIZE (platint_type)) ? platint_type[dt->inttype] : "??", dt->cpu_id, dt->cpu_eid); grub_printf (" IOSAPIC Vec=%02x GSI=%08x source flags=%08x\n", dt->sapic_vector, dt->global_sys_int, dt->src_flags); } break; default: grub_printf (" type=%x l=%u ", d->type, d->len); grub_printf (" ??\n"); } } } static void disp_acpi_xsdt_table (struct grub_acpi_table_header *t) { grub_uint32_t len; grub_uint64_t *desc; disp_acpi_table (t); len = t->length - sizeof (*t); desc = (grub_uint64_t *) (t + 1); for (; len >= sizeof (*desc); desc++, len -= sizeof (*desc)) { #if GRUB_CPU_SIZEOF_VOID_P == 4 if (*desc >= (1ULL << 32)) { grub_printf ("Unreachable table\n"); continue; } #endif t = (struct grub_acpi_table_header *) (grub_addr_t) *desc; if (t == NULL) continue; if (grub_memcmp (t->signature, GRUB_ACPI_MADT_SIGNATURE, sizeof (t->signature)) == 0) disp_madt_table ((struct grub_acpi_madt *) t); else disp_acpi_table (t); } } static void disp_acpi_rsdt_table (struct grub_acpi_table_header *t) { grub_uint32_t len; grub_uint32_t *desc; disp_acpi_table (t); len = t->length - sizeof (*t); desc = (grub_uint32_t *) (t + 1); for (; len >= sizeof (*desc); desc++, len -= sizeof (*desc)) { t = (struct grub_acpi_table_header *) (grub_addr_t) *desc; if (t == NULL) continue; if (grub_memcmp (t->signature, GRUB_ACPI_MADT_SIGNATURE, sizeof (t->signature)) == 0) disp_madt_table ((struct grub_acpi_madt *) t); else disp_acpi_table (t); } } static void disp_acpi_rsdpv1 (struct grub_acpi_rsdp_v10 *rsdp) { print_field (rsdp->signature); grub_printf ("chksum:%02x (%s), OEM-ID: ", rsdp->checksum, grub_byte_checksum (rsdp, sizeof (*rsdp)) == 0 ? "valid" : "invalid"); print_field (rsdp->oemid); grub_printf ("rev=%d\n", rsdp->revision); grub_printf ("RSDT=%08" PRIxGRUB_UINT32_T "\n", rsdp->rsdt_addr); } static void disp_acpi_rsdpv2 (struct grub_acpi_rsdp_v20 *rsdp) { disp_acpi_rsdpv1 (&rsdp->rsdpv1); grub_printf ("len=%d chksum=%02x (%s) XSDT=%016" PRIxGRUB_UINT64_T "\n", rsdp->length, rsdp->checksum, grub_byte_checksum (rsdp, rsdp->length) == 0 ? "valid" : "invalid", rsdp->xsdt_addr); if (rsdp->length != sizeof (*rsdp)) grub_printf (" length mismatch %d != %d\n", rsdp->length, (int) sizeof (*rsdp)); if (rsdp->reserved[0] || rsdp->reserved[1] || rsdp->reserved[2]) grub_printf (" non-zero reserved %02x%02x%02x\n", rsdp->reserved[0], rsdp->reserved[1], rsdp->reserved[2]); } static const struct grub_arg_option options[] = { {"v1", '1', 0, N_("Show version 1 tables only."), 0, ARG_TYPE_NONE}, {"v2", '2', 0, N_("Show version 2 and version 3 tables only."), 0, ARG_TYPE_NONE}, {0, 0, 0, 0, 0, 0} }; static grub_err_t grub_cmd_lsacpi (struct grub_extcmd_context *ctxt, int argc __attribute__ ((unused)), char **args __attribute__ ((unused))) { if (!ctxt->state[1].set) { struct grub_acpi_rsdp_v10 *rsdp1 = grub_acpi_get_rsdpv1 (); if (!rsdp1) grub_printf ("No RSDPv1\n"); else { grub_printf ("RSDPv1 signature:"); disp_acpi_rsdpv1 (rsdp1); disp_acpi_rsdt_table ((void *) (grub_addr_t) rsdp1->rsdt_addr); } } if (!ctxt->state[0].set) { struct grub_acpi_rsdp_v20 *rsdp2 = grub_acpi_get_rsdpv2 (); if (!rsdp2) grub_printf ("No RSDPv2\n"); else { #if GRUB_CPU_SIZEOF_VOID_P == 4 if (rsdp2->xsdt_addr >= (1ULL << 32)) grub_printf ("Unreachable RSDPv2\n"); else #endif { grub_printf ("RSDPv2 signature:"); disp_acpi_rsdpv2 (rsdp2); disp_acpi_xsdt_table ((void *) (grub_addr_t) rsdp2->xsdt_addr); grub_printf ("\n"); } } } return GRUB_ERR_NONE; } static grub_extcmd_t cmd; GRUB_MOD_INIT(lsapi) { cmd = grub_register_extcmd ("lsacpi", grub_cmd_lsacpi, 0, "[-1|-2]", N_("Show ACPI information."), options); } GRUB_MOD_FINI(lsacpi) { grub_unregister_extcmd (cmd); }