83 lines
2.4 KiB
C
83 lines
2.4 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2010 Free Software Foundation, Inc.
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*
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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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*
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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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*
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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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*/
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#include <grub/relocator.h>
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#include <grub/relocator_private.h>
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#include <grub/memory.h>
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#include <grub/ieee1275/ieee1275.h>
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unsigned
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grub_relocator_firmware_get_max_events (void)
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{
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int counter = 0;
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auto int NESTED_FUNC_ATTR count (grub_uint64_t addr __attribute__ ((unused)),
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grub_uint64_t len __attribute__ ((unused)),
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grub_uint32_t type __attribute__ ((unused)));
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int NESTED_FUNC_ATTR count (grub_uint64_t addr __attribute__ ((unused)),
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grub_uint64_t len __attribute__ ((unused)),
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grub_uint32_t type __attribute__ ((unused)))
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{
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counter++;
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return 0;
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}
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if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_INTERPRET))
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return 0;
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grub_machine_mmap_iterate (count);
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return 2 * counter;
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}
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unsigned
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grub_relocator_firmware_fill_events (struct grub_relocator_mmap_event *events)
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{
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int counter = 0;
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auto int NESTED_FUNC_ATTR fill (grub_uint64_t addr, grub_uint64_t len,
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grub_uint32_t type);
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int NESTED_FUNC_ATTR fill (grub_uint64_t addr, grub_uint64_t len,
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grub_uint32_t type)
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{
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if (type != GRUB_MACHINE_MEMORY_AVAILABLE)
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return 0;
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events[counter].type = REG_FIRMWARE_START;
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events[counter].pos = addr;
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counter++;
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events[counter].type = REG_FIRMWARE_END;
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events[counter].pos = addr + len;
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counter++;
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return 0;
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}
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if (grub_ieee1275_test_flag (GRUB_IEEE1275_FLAG_CANNOT_INTERPRET))
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return 0;
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grub_machine_mmap_iterate (fill);
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return counter;
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}
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int
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grub_relocator_firmware_alloc_region (grub_addr_t start, grub_size_t size)
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{
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return (grub_claimmap (start, size) >= 0);
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}
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void
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grub_relocator_firmware_free_region (grub_addr_t start, grub_size_t size)
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{
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grub_ieee1275_release (start, size);
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}
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