69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _DRIVERS_FIRMWARE_EFI_EFISTUB_H
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#define _DRIVERS_FIRMWARE_EFI_EFISTUB_H
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/* error code which can't be mistaken for valid address */
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#define EFI_ERROR (~0UL)
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/*
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* __init annotations should not be used in the EFI stub, since the code is
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* either included in the decompressor (x86, ARM) where they have no effect,
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* or the whole stub is __init annotated at the section level (arm64), by
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* renaming the sections, in which case the __init annotation will be
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* redundant, and will result in section names like .init.init.text, and our
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* linker script does not expect that.
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*/
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#undef __init
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/*
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* Allow the platform to override the allocation granularity: this allows
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* systems that have the capability to run with a larger page size to deal
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* with the allocations for initrd and fdt more efficiently.
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*/
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#ifndef EFI_ALLOC_ALIGN
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#define EFI_ALLOC_ALIGN EFI_PAGE_SIZE
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#endif
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extern int __pure nokaslr(void);
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extern int __pure is_quiet(void);
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extern int __pure novamap(void);
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#define pr_efi(sys_table, msg) do { \
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if (!is_quiet()) efi_printk(sys_table, "EFI stub: "msg); \
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} while (0)
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#define pr_efi_err(sys_table, msg) efi_printk(sys_table, "EFI stub: ERROR: "msg)
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void efi_char16_printk(efi_system_table_t *, efi_char16_t *);
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unsigned long get_dram_base(efi_system_table_t *sys_table_arg);
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efi_status_t allocate_new_fdt_and_exit_boot(efi_system_table_t *sys_table,
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void *handle,
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unsigned long *new_fdt_addr,
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unsigned long max_addr,
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u64 initrd_addr, u64 initrd_size,
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char *cmdline_ptr,
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unsigned long fdt_addr,
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unsigned long fdt_size);
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void *get_fdt(efi_system_table_t *sys_table, unsigned long *fdt_size);
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void efi_get_virtmap(efi_memory_desc_t *memory_map, unsigned long map_size,
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unsigned long desc_size, efi_memory_desc_t *runtime_map,
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int *count);
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efi_status_t efi_get_random_bytes(efi_system_table_t *sys_table,
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unsigned long size, u8 *out);
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efi_status_t efi_random_alloc(efi_system_table_t *sys_table_arg,
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unsigned long size, unsigned long align,
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unsigned long *addr, unsigned long random_seed);
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efi_status_t check_platform_features(efi_system_table_t *sys_table_arg);
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efi_status_t efi_random_get_seed(efi_system_table_t *sys_table_arg);
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#endif
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