277 lines
9.9 KiB
C
277 lines
9.9 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_EFI_EMU_HEADER
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#define GRUB_EFI_EMU_HEADER 1
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#include <grub/efi/api.h>
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#include <grub/file.h>
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#define GRUB_EFIEMU_PAGESIZE 4096
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/* EFI api defined in 32-bit and 64-bit version*/
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struct grub_efi_system_table32
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{
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grub_efi_table_header_t hdr;
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grub_efi_uint32_t firmware_vendor;
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grub_efi_uint32_t firmware_revision;
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grub_efi_uint32_t console_in_handler;
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grub_efi_uint32_t con_in;
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grub_efi_uint32_t console_out_handler;
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grub_efi_uint32_t con_out;
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grub_efi_uint32_t standard_error_handle;
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grub_efi_uint32_t std_err;
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grub_efi_uint32_t runtime_services;
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grub_efi_uint32_t boot_services;
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grub_efi_uint32_t num_table_entries;
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grub_efi_uint32_t configuration_table;
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} __attribute__ ((packed));
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typedef struct grub_efi_system_table32 grub_efi_system_table32_t;
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struct grub_efi_system_table64
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{
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grub_efi_table_header_t hdr;
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grub_efi_uint64_t firmware_vendor;
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grub_efi_uint32_t firmware_revision;
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grub_efi_uint32_t pad;
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grub_efi_uint64_t console_in_handler;
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grub_efi_uint64_t con_in;
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grub_efi_uint64_t console_out_handler;
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grub_efi_uint64_t con_out;
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grub_efi_uint64_t standard_error_handle;
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grub_efi_uint64_t std_err;
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grub_efi_uint64_t runtime_services;
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grub_efi_uint64_t boot_services;
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grub_efi_uint64_t num_table_entries;
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grub_efi_uint64_t configuration_table;
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} __attribute__ ((packed));
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typedef struct grub_efi_system_table64 grub_efi_system_table64_t;
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struct grub_efiemu_runtime_services32
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{
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grub_efi_table_header_t hdr;
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grub_efi_uint32_t get_time;
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grub_efi_uint32_t set_time;
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grub_efi_uint32_t get_wakeup_time;
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grub_efi_uint32_t set_wakeup_time;
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grub_efi_uint32_t set_virtual_address_map;
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grub_efi_uint32_t convert_pointer;
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grub_efi_uint32_t get_variable;
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grub_efi_uint32_t get_next_variable_name;
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grub_efi_uint32_t set_variable;
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grub_efi_uint32_t get_next_high_monotonic_count;
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grub_efi_uint32_t reset_system;
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} __attribute__ ((packed));
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typedef struct grub_efiemu_runtime_services32 grub_efiemu_runtime_services32_t;
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struct grub_efiemu_runtime_services64
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{
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grub_efi_table_header_t hdr;
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grub_efi_uint64_t get_time;
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grub_efi_uint64_t set_time;
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grub_efi_uint64_t get_wakeup_time;
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grub_efi_uint64_t set_wakeup_time;
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grub_efi_uint64_t set_virtual_address_map;
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grub_efi_uint64_t convert_pointer;
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grub_efi_uint64_t get_variable;
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grub_efi_uint64_t get_next_variable_name;
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grub_efi_uint64_t set_variable;
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grub_efi_uint64_t get_next_high_monotonic_count;
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grub_efi_uint64_t reset_system;
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} __attribute__ ((packed));
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typedef struct grub_efiemu_runtime_services64 grub_efiemu_runtime_services64_t;
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extern grub_efi_system_table32_t *grub_efiemu_system_table32;
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extern grub_efi_system_table64_t *grub_efiemu_system_table64;
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/* Convenience macros to access currently loaded efiemu */
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#define grub_efiemu_system_table ((grub_efiemu_sizeof_uintn_t () == 8) \
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? (void *) grub_efiemu_system_table64 \
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: (void *) grub_efiemu_system_table32)
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#define GRUB_EFIEMU_SIZEOF_OF_UINTN (grub_efiemu_sizeof_uintn_t ())
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#define GRUB_EFIEMU_SYSTEM_TABLE(x) ((grub_efiemu_sizeof_uintn_t () == 8) \
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? grub_efiemu_system_table64->x \
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: grub_efiemu_system_table32->x)
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#define GRUB_EFIEMU_SYSTEM_TABLE_SET(x,y) ((grub_efiemu_sizeof_uintn_t () == 8)\
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? (grub_efiemu_system_table64->x \
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= (y)) \
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: (grub_efiemu_system_table32->x \
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= (y)))
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#define GRUB_EFIEMU_SYSTEM_TABLE_PTR(x) ((grub_efiemu_sizeof_uintn_t () == 8)\
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? UINT_TO_PTR \
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(grub_efiemu_system_table64->x) \
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: UINT_TO_PTR \
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(grub_efiemu_system_table32->x))
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#define GRUB_EFIEMU_SYSTEM_TABLE_VAR(x) ((grub_efiemu_sizeof_uintn_t () == 8) \
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? (void *) \
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&(grub_efiemu_system_table64->x) \
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: (void *) \
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&(grub_efiemu_system_table32->x))
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#define GRUB_EFIEMU_SYSTEM_TABLE_SIZEOF(x) \
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((grub_efiemu_sizeof_uintn_t () == 8) \
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? sizeof(grub_efiemu_system_table64->x)\
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: sizeof(grub_efiemu_system_table32->x))
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#define GRUB_EFIEMU_SYSTEM_TABLE_SIZEOF_TOTAL ((grub_efiemu_sizeof_uintn_t () == 8) ? sizeof(*grub_efiemu_system_table64):sizeof(*grub_efiemu_system_table32))
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/* ELF management definitions and functions */
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struct grub_efiemu_segment
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{
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struct grub_efiemu_segment *next;
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grub_size_t size;
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unsigned section;
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int handle;
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int ptv_rel_needed;
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grub_off_t off;
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void *srcptr;
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};
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typedef struct grub_efiemu_segment *grub_efiemu_segment_t;
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struct grub_efiemu_elf_sym
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{
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int handle;
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grub_off_t off;
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unsigned section;
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};
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int grub_efiemu_check_header32 (void *ehdr, grub_size_t size);
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int grub_efiemu_check_header64 (void *ehdr, grub_size_t size);
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grub_err_t grub_efiemu_loadcore_init32 (void *core, grub_size_t core_size,
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grub_efiemu_segment_t *segments);
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grub_err_t grub_efiemu_loadcore_init64 (void *core, grub_size_t core_size,
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grub_efiemu_segment_t *segments);
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grub_err_t grub_efiemu_loadcore_load32 (void *core,
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grub_size_t core_size,
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grub_efiemu_segment_t segments);
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grub_err_t grub_efiemu_loadcore_load64 (void *core,
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grub_size_t core_size,
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grub_efiemu_segment_t segments);
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grub_err_t grub_efiemu_loadcore_unload32 (void);
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grub_err_t grub_efiemu_loadcore_unload64 (void);
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grub_err_t grub_efiemu_loadcore_unload(void);
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grub_err_t grub_efiemu_loadcore_init (grub_file_t file);
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grub_err_t grub_efiemu_loadcore_load (void);
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/* Configuration tables manipulation. Definitions and functions */
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struct grub_efiemu_configuration_table
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{
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struct grub_efiemu_configuration_table *next;
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grub_efi_guid_t guid;
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void * (*get_table) (void *data);
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void (*unload) (void *data);
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void *data;
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};
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struct grub_efiemu_configuration_table32
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{
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grub_efi_guid_t vendor_guid;
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grub_efi_uint32_t vendor_table;
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} __attribute__ ((packed));
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typedef struct grub_efiemu_configuration_table32 grub_efiemu_configuration_table32_t;
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struct grub_efiemu_configuration_table64
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{
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grub_efi_guid_t vendor_guid;
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grub_efi_uint64_t vendor_table;
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} __attribute__ ((packed));
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typedef struct grub_efiemu_configuration_table32 grub_efiemu_configuration_table64_t;
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grub_err_t grub_efiemu_unregister_configuration_table (grub_efi_guid_t guid);
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grub_err_t
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grub_efiemu_register_configuration_table (grub_efi_guid_t guid,
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void * (*get_table) (void *data),
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void (*unload) (void *data),
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void *data);
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/* Memory management functions */
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int grub_efiemu_request_memalign (grub_size_t align, grub_size_t size,
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grub_efi_memory_type_t type);
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void *grub_efiemu_mm_obtain_request (int handle);
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int grub_efiemu_get_memory_map (grub_efi_uintn_t *memory_map_size,
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grub_efi_memory_descriptor_t *memory_map,
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grub_efi_uintn_t *map_key,
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grub_efi_uintn_t *descriptor_size,
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grub_efi_uint32_t *descriptor_version);
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grub_err_t grub_efiemu_mm_unload (void);
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grub_err_t grub_efiemu_mm_do_alloc (void);
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grub_err_t grub_efiemu_mm_init (void);
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void *grub_efiemu_mm_obtain_request (int handle);
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void grub_efiemu_mm_return_request (int handle);
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grub_efi_memory_type_t grub_efiemu_mm_get_type (int handle);
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/* Drop-in replacements for grub_efi_* and grub_machine_* */
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int grub_efiemu_get_memory_map (grub_efi_uintn_t *memory_map_size,
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grub_efi_memory_descriptor_t *memory_map,
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grub_efi_uintn_t *map_key,
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grub_efi_uintn_t *descriptor_size,
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grub_efi_uint32_t *descriptor_version);
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grub_err_t
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grub_efiemu_mmap_iterate (int NESTED_FUNC_ATTR (*hook) (grub_uint64_t,
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grub_uint64_t,
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grub_uint32_t));
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int grub_efiemu_sizeof_uintn_t (void);
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int grub_efiemu_exit_boot_services (grub_efi_uintn_t map_key);
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int grub_efiemu_finish_boot_services (void);
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grub_err_t
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grub_efiemu_get_lower_upper_memory (grub_uint64_t *lower, grub_uint64_t *upper);
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#define GRUB_EFIEMU_MEMORY_AVAILABLE 1
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#define GRUB_EFIEMU_MEMORY_RESERVED 2
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#define GRUB_EFIEMU_MEMORY_ACPI 3
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#define GRUB_EFIEMU_MEMORY_NVS 4
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#define GRUB_EFIEMU_MEMORY_CODE 5
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/* efiemu main control definitions and functions*/
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typedef enum {GRUB_EFIEMU_NOTLOADED,
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GRUB_EFIEMU32, GRUB_EFIEMU64} grub_efiemu_mode_t;
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struct grub_efiemu_prepare_hook
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{
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struct grub_efiemu_prepare_hook *next;
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grub_err_t (*hook) (void *data);
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void (*unload) (void *data);
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void *data;
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};
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grub_err_t grub_efiemu_prepare32 (struct grub_efiemu_prepare_hook
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*prepare_hooks,
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struct grub_efiemu_configuration_table
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*config_tables);
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grub_err_t grub_efiemu_prepare64 (struct grub_efiemu_prepare_hook
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*prepare_hooks,
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struct grub_efiemu_configuration_table
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*config_tables);
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grub_err_t grub_efiemu_unload (void);
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grub_err_t grub_efiemu_prepare (void);
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grub_err_t
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grub_efiemu_register_prepare_hook (grub_err_t (*hook) (void *data),
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void (*unload) (void *data),
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void *data);
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/* symbols and pointers */
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grub_err_t grub_efiemu_alloc_syms (void);
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grub_err_t grub_efiemu_request_symbols (int num);
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grub_err_t grub_efiemu_resolve_symbol (const char *name,
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int *handle, grub_off_t *off);
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grub_err_t grub_efiemu_register_symbol (const char *name,
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int handle, grub_off_t off);
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void grub_efiemu_free_syms (void);
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grub_err_t grub_efiemu_write_value (void * addr, grub_uint32_t value,
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int plus_handle,
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int minus_handle, int ptv_needed, int size);
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grub_err_t grub_efiemu_pnvram (void);
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grub_err_t grub_efiemu_prepare (void);
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char *grub_efiemu_get_default_core_name (void);
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void grub_efiemu_pnvram_cmd_unregister (void);
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grub_err_t grub_efiemu_autocore (void);
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#endif /* ! GRUB_EFI_EMU_HEADER */
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