diff options
Diffstat (limited to 'include/grub/relocator_private.h')
| -rw-r--r-- | include/grub/relocator_private.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/include/grub/relocator_private.h b/include/grub/relocator_private.h new file mode 100644 index 0000000..1c563cb --- /dev/null +++ b/include/grub/relocator_private.h @@ -0,0 +1,113 @@ +/* + * 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 |