mirror of
https://git.proxmox.com/git/grub2
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114 lines
3.6 KiB
C
114 lines
3.6 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2009 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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#ifndef GRUB_RELOCATOR_PRIVATE_HEADER
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#define GRUB_RELOCATOR_PRIVATE_HEADER 1
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#include <grub/types.h>
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#include <grub/err.h>
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#include <grub/mm_private.h>
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extern grub_size_t grub_relocator_align;
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extern grub_size_t grub_relocator_forward_size;
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extern grub_size_t grub_relocator_backward_size;
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extern grub_size_t grub_relocator_jumper_size;
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void
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grub_cpu_relocator_init (void);
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grub_err_t
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grub_relocator_prepare_relocs (struct grub_relocator *rel,
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grub_addr_t addr,
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void **relstart, grub_size_t *relsize);
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void grub_cpu_relocator_forward (void *rels, void *src, void *tgt,
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grub_size_t size);
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void grub_cpu_relocator_backward (void *rels, void *src, void *tgt,
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grub_size_t size);
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void grub_cpu_relocator_jumper (void *rels, grub_addr_t addr);
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/* Remark: GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT_LOG = 1 or 2
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aren't supported. */
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#ifdef GRUB_MACHINE_IEEE1275
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#define GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS 1
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#define GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT_LOG 0
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#elif defined (GRUB_MACHINE_EFI)
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#define GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS 1
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#define GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT_LOG 12
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#else
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#define GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS 0
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#endif
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#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS && GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT_LOG != 0
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#define GRUB_RELOCATOR_HAVE_LEFTOVERS 1
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#else
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#define GRUB_RELOCATOR_HAVE_LEFTOVERS 0
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#endif
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#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
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#define GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT (1 << GRUB_RELOCATOR_FIRMWARE_REQUESTS_QUANT_LOG)
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#endif
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struct grub_relocator_mmap_event
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{
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enum {
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IN_REG_START = 0,
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IN_REG_END = 1,
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REG_BEG_START = 2,
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REG_BEG_END = REG_BEG_START | 1,
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#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
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REG_FIRMWARE_START = 4,
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REG_FIRMWARE_END = REG_FIRMWARE_START | 1,
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/* To track the regions already in heap. */
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FIRMWARE_BLOCK_START = 6,
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FIRMWARE_BLOCK_END = FIRMWARE_BLOCK_START | 1,
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#endif
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#if GRUB_RELOCATOR_HAVE_LEFTOVERS
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REG_LEFTOVER_START = 8,
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REG_LEFTOVER_END = REG_LEFTOVER_START | 1,
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#endif
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COLLISION_START = 10,
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COLLISION_END = COLLISION_START | 1
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} type;
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grub_phys_addr_t pos;
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union
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{
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struct
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{
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grub_mm_region_t reg;
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grub_mm_header_t hancestor;
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grub_mm_region_t *regancestor;
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grub_mm_header_t head;
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};
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#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
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struct grub_relocator_fw_leftover *leftover;
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#endif
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};
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};
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/* Return 0 on failure, 1 on success. The failure here
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can be very time-expensive, so please make sure fill events is accurate. */
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#if GRUB_RELOCATOR_HAVE_FIRMWARE_REQUESTS
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int grub_relocator_firmware_alloc_region (grub_phys_addr_t start,
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grub_size_t size);
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unsigned grub_relocator_firmware_fill_events (struct grub_relocator_mmap_event *events);
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unsigned grub_relocator_firmware_get_max_events (void);
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void grub_relocator_firmware_free_region (grub_phys_addr_t start,
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grub_size_t size);
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#endif
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#endif
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