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