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/* lssal.c - Display EFI SAL systab. */
/*
* 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 <http://www.gnu.org/licenses/>.
*/
#include <grub/types.h>
#include <grub/mm.h>
#include <grub/misc.h>
#include <grub/normal.h>
#include <grub/charset.h>
#include <grub/efi/api.h>
#include <grub/efi/efi.h>
#include <grub/dl.h>
GRUB_MOD_LICENSE ("GPLv3+");
static void
disp_sal (void *table)
{
struct grub_efi_sal_system_table *t = table;
void *desc;
grub_uint32_t len, l, i;
grub_printf ("SAL rev: %02x, signature: %x, len:%x\n",
t->sal_rev, t->signature, t->total_table_len);
grub_printf ("nbr entry: %d, chksum: %02x, SAL version A: %02x B: %02x\n",
t->entry_count, t->checksum,
t->sal_a_version, t->sal_b_version);
grub_printf ("OEM-ID: %-32s\n", t->oem_id);
grub_printf ("Product-ID: %-32s\n", t->product_id);
desc = t->entries;
len = t->total_table_len - sizeof (struct grub_efi_sal_system_table);
if (t->total_table_len <= sizeof (struct grub_efi_sal_system_table))
return;
for (i = 0; i < t->entry_count; i++)
{
switch (*(grub_uint8_t *) desc)
{
case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_ENTRYPOINT_DESCRIPTOR:
{
struct grub_efi_sal_system_table_entrypoint_descriptor *c = desc;
l = sizeof (*c);
grub_printf (" Entry point: PAL=%016" PRIxGRUB_UINT64_T
" SAL=%016" PRIxGRUB_UINT64_T " GP=%016"
PRIxGRUB_UINT64_T "\n",
c->pal_proc_addr, c->sal_proc_addr,
c->global_data_ptr);
}
break;
case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_MEMORY_DESCRIPTOR:
{
struct grub_efi_sal_system_table_memory_descriptor *c = desc;
l = sizeof (*c);
grub_printf (" Memory descriptor entry addr=%016" PRIxGRUB_UINT64_T
" len=%" PRIuGRUB_UINT64_T "KB\n",
c->addr, c->len * 4);
grub_printf (" sal_used=%d attr=%x AR=%x attr_mask=%x "
"type=%x usage=%x\n",
c->sal_used, c->attr, c->ar, c->attr_mask, c->mem_type,
c->usage);
}
break;
case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_PLATFORM_FEATURES:
{
struct grub_efi_sal_system_table_platform_features *c = desc;
l = sizeof (*c);
grub_printf (" Platform features: %02x", c->flags);
if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_BUSLOCK)
grub_printf (" BusLock");
if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_IRQREDIRECT)
grub_printf (" IrqRedirect");
if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_IPIREDIRECT)
grub_printf (" IPIRedirect");
if (c->flags & GRUB_EFI_SAL_SYSTEM_TABLE_PLATFORM_FEATURE_ITCDRIFT)
grub_printf (" ITCDrift");
grub_printf ("\n");
}
break;
case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_TRANSLATION_REGISTER_DESCRIPTOR:
{
struct grub_efi_sal_system_table_translation_register_descriptor *c
= desc;
l = sizeof (*c);
grub_printf (" TR type=%d num=%d va=%016" PRIxGRUB_UINT64_T
" pte=%016" PRIxGRUB_UINT64_T "\n",
c->register_type, c->register_number,
c->addr, c->page_size);
}
break;
case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_PURGE_TRANSLATION_COHERENCE:
{
struct grub_efi_sal_system_table_purge_translation_coherence *c
= desc;
l = sizeof (*c);
grub_printf (" PTC coherence nbr=%d addr=%016" PRIxGRUB_UINT64_T "\n",
c->ndomains, c->coherence);
}
break;
case GRUB_EFI_SAL_SYSTEM_TABLE_TYPE_AP_WAKEUP:
{
struct grub_efi_sal_system_table_ap_wakeup *c = desc;
l = sizeof (*c);
grub_printf (" AP wake-up: mec=%d vect=%" PRIxGRUB_UINT64_T "\n",
c->mechanism, c->vector);
}
break;
default:
grub_printf (" unknown entry 0x%x\n", *(grub_uint8_t *)desc);
return;
}
desc = (grub_uint8_t *)desc + l;
if (len <= l)
return;
len -= l;
}
}
static grub_err_t
grub_cmd_lssal (struct grub_command *cmd __attribute__ ((unused)),
int argc __attribute__ ((unused)),
char **args __attribute__ ((unused)))
{
const grub_efi_system_table_t *st = grub_efi_system_table;
grub_efi_configuration_table_t *t = st->configuration_table;
unsigned int i;
grub_efi_packed_guid_t guid = GRUB_EFI_SAL_TABLE_GUID;
for (i = 0; i < st->num_table_entries; i++)
{
if (grub_memcmp (&guid, &t->vendor_guid,
sizeof (grub_efi_packed_guid_t)) == 0)
{
disp_sal (t->vendor_table);
return GRUB_ERR_NONE;
}
t++;
}
grub_printf ("SAL not found\n");
return GRUB_ERR_NONE;
}
static grub_command_t cmd;
GRUB_MOD_INIT(lssal)
{
cmd = grub_register_command ("lssal", grub_cmd_lssal, "",
"Display SAL system table.");
}
GRUB_MOD_FINI(lssal)
{
grub_unregister_command (cmd);
}
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