bad144c60f
Since ARM platforms do not have a common memory map, add a helper function that finds the lowest address region with the EFI_MEMORY_WB attribute set in the UEFI memory map. Required for the arm64 efi linux loader to restrict the initrd location to where it will be accessible by the kernel at runtime. Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
119 lines
4.6 KiB
C
119 lines
4.6 KiB
C
/* efi.h - declare variables and functions for EFI support */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2006,2007,2008,2009 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_EFI_HEADER
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#define GRUB_EFI_EFI_HEADER 1
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#include <grub/types.h>
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#include <grub/dl.h>
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#include <grub/efi/api.h>
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/* Functions. */
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void *EXPORT_FUNC(grub_efi_locate_protocol) (grub_efi_guid_t *protocol,
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void *registration);
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grub_efi_handle_t *
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EXPORT_FUNC(grub_efi_locate_handle) (grub_efi_locate_search_type_t search_type,
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grub_efi_guid_t *protocol,
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void *search_key,
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grub_efi_uintn_t *num_handles);
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void *EXPORT_FUNC(grub_efi_open_protocol) (grub_efi_handle_t handle,
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grub_efi_guid_t *protocol,
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grub_efi_uint32_t attributes);
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int EXPORT_FUNC(grub_efi_set_text_mode) (int on);
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void EXPORT_FUNC(grub_efi_stall) (grub_efi_uintn_t microseconds);
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void *
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EXPORT_FUNC(grub_efi_allocate_pages_real) (grub_efi_physical_address_t address,
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grub_efi_uintn_t pages,
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grub_efi_allocate_type_t alloctype,
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grub_efi_memory_type_t memtype);
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void *
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EXPORT_FUNC(grub_efi_allocate_fixed) (grub_efi_physical_address_t address,
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grub_efi_uintn_t pages);
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void *
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EXPORT_FUNC(grub_efi_allocate_any_pages) (grub_efi_uintn_t pages);
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void EXPORT_FUNC(grub_efi_free_pages) (grub_efi_physical_address_t address,
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grub_efi_uintn_t pages);
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grub_efi_uintn_t EXPORT_FUNC(grub_efi_find_mmap_size) (void);
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int
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EXPORT_FUNC(grub_efi_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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void grub_efi_memory_fini (void);
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grub_efi_loaded_image_t *EXPORT_FUNC(grub_efi_get_loaded_image) (grub_efi_handle_t image_handle);
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void EXPORT_FUNC(grub_efi_print_device_path) (grub_efi_device_path_t *dp);
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char *EXPORT_FUNC(grub_efi_get_filename) (grub_efi_device_path_t *dp);
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grub_efi_device_path_t *
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EXPORT_FUNC(grub_efi_get_device_path) (grub_efi_handle_t handle);
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grub_efi_device_path_t *
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EXPORT_FUNC(grub_efi_find_last_device_path) (const grub_efi_device_path_t *dp);
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grub_efi_device_path_t *
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EXPORT_FUNC(grub_efi_duplicate_device_path) (const grub_efi_device_path_t *dp);
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grub_err_t EXPORT_FUNC (grub_efi_finish_boot_services) (grub_efi_uintn_t *outbuf_size, void *outbuf,
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grub_efi_uintn_t *map_key,
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grub_efi_uintn_t *efi_desc_size,
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grub_efi_uint32_t *efi_desc_version);
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grub_err_t EXPORT_FUNC (grub_efi_set_virtual_address_map) (grub_efi_uintn_t memory_map_size,
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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_efi_memory_descriptor_t *virtual_map);
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void *EXPORT_FUNC (grub_efi_get_variable) (const char *variable,
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const grub_efi_guid_t *guid,
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grub_size_t *datasize_out);
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grub_err_t
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EXPORT_FUNC (grub_efi_set_variable) (const char *var,
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const grub_efi_guid_t *guid,
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void *data,
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grub_size_t datasize);
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int
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EXPORT_FUNC (grub_efi_compare_device_paths) (const grub_efi_device_path_t *dp1,
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const grub_efi_device_path_t *dp2);
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extern void (*EXPORT_VAR(grub_efi_net_config)) (grub_efi_handle_t hnd,
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char **device,
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char **path);
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#if defined(__arm__) || defined(__aarch64__)
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void *EXPORT_FUNC(grub_efi_get_firmware_fdt)(void);
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#endif
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#if defined(__aarch64__)
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grub_err_t EXPORT_FUNC(grub_efi_get_ram_base)(grub_addr_t *);
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#endif
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grub_addr_t grub_efi_modules_addr (void);
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void grub_efi_mm_init (void);
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void grub_efi_mm_fini (void);
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void grub_efi_init (void);
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void grub_efi_fini (void);
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void grub_efi_set_prefix (void);
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/* Variables. */
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extern grub_efi_system_table_t *EXPORT_VAR(grub_efi_system_table);
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extern grub_efi_handle_t EXPORT_VAR(grub_efi_image_handle);
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extern int EXPORT_VAR(grub_efi_is_finished);
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struct grub_net_card;
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grub_efi_handle_t
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grub_efinet_get_device_handle (struct grub_net_card *card);
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#endif /* ! GRUB_EFI_EFI_HEADER */
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