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/* lssal.c - Display EFI SAL systab. */
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2008 Free Software Foundation, Inc.
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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#include <grub/types.h>
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#include <grub/misc.h>
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#include <grub/normal.h>
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#include <grub/charset.h>
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#include <grub/efi/api.h>
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#include <grub/efi/efi.h>
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disp_sal (void *table)
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struct grub_efi_sal_system_table *t = table;
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grub_printf ("SAL rev: %02x, signature: %x, len:%x\n",
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t->sal_rev, t->signature, t->total_table_len);
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grub_printf ("nbr entry: %d, chksum: %02x, SAL version A: %02x B: %02x\n",
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t->entry_count, t->checksum,
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t->sal_a_version, t->sal_b_version);
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grub_printf ("OEM-ID: %-32s\n", t->oem_id);
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grub_printf ("Product-ID: %-32s\n", t->product_id);
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len = t->total_table_len - sizeof (struct grub_efi_sal_system_table);
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switch (*(grub_uint8_t *) desc)
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case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_ENTRYPOINT_DESCRIPTOR:
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struct grub_efi_sal_system_table_entrypoint_descriptor *c = desc;
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grub_printf (" Entry point: PAL=%016" PRIxGRUB_UINT64_T
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" SAL=%016" PRIxGRUB_UINT64_T " GP=%016"
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PRIxGRUB_UINT64_T "\n",
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c->pal_proc_addr, c->sal_proc_addr,
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case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_MEMORY_DESCRIPTOR:
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struct grub_efi_sal_system_table_memory_descriptor *c = desc;
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grub_printf (" Memory descriptor entry addr=%016" PRIxGRUB_UINT64_T
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" len=%" PRIuGRUB_UINT64_T "KB\n",
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grub_printf (" sal_used=%d attr=%x AR=%x attr_mask=%x "
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c->sal_used, c->attr, c->ar, c->attr_mask, c->mem_type,
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case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_PLATFORM_FEATURES:
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struct grub_efi_sal_system_table_platform_features *c = desc;
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grub_printf (" Platform features: %02x", c->flags);
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if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_BUSLOCK)
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grub_printf (" BusLock");
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if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_IRQREDIRECT)
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grub_printf (" IrqRedirect");
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if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_IPIREDIRECT)
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grub_printf (" IPIRedirect");
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if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_ITCDRIFT)
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grub_printf (" ITCDrift");
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case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_TRANSLATION_REGISTER_DESCRIPTOR:
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struct grub_efi_sal_system_table_translation_register_descriptor *c
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grub_printf (" TR type=%d num=%d va=%016" PRIxGRUB_UINT64_T
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" pte=%016" PRIxGRUB_UINT64_T "\n",
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c->register_type, c->register_number,
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c->addr, c->page_size);
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case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_PURGE_TRANSLATION_COHERENCE:
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struct grub_efi_sal_system_table_purge_translation_coherence *c
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grub_printf (" PTC coherence nbr=%d addr=%016" PRIxGRUB_UINT64_T "\n",
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c->ndomains, c->coherence);
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case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_AP_WAKEUP:
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struct grub_efi_sal_system_table_ap_wakeup *c = desc;
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grub_printf (" AP wake-up: mec=%d vect=%" PRIxGRUB_UINT64_T "\n",
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c->mechanism, c->vector);
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grub_printf (" unknown entry 0x%x\n", *(grub_uint8_t *)desc);
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desc = (grub_uint8_t *)desc + l;
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grub_cmd_lssal (struct grub_command *cmd __attribute__ ((unused)),
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int argc __attribute__ ((unused)),
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char **args __attribute__ ((unused)))
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const grub_efi_system_table_t *st = grub_efi_system_table;
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grub_efi_configuration_table_t *t = st->configuration_table;
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grub_efi_guid_t guid = GRUB_EFI_SAL_TABLE_GUID;
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for (i = 0; i < st->num_table_entries; i++)
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if (grub_memcmp (&guid, &t->vendor_guid,
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sizeof (grub_efi_guid_t)) == 0)
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disp_sal (t->vendor_table);
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return GRUB_ERR_NONE;
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grub_printf ("SAL not found\n");
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return GRUB_ERR_NONE;
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static grub_command_t cmd;
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cmd = grub_register_command ("lssal", grub_cmd_lssal, "",
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"Display SAL system table.");
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grub_unregister_command (cmd);