7d4e323d02
Drop leading underscores and use bool not int for true/false variables set on the command line. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Cc: Arvind Sankar <nivedita@alum.mit.edu> Cc: Borislav Petkov <bp@alien8.de> Cc: James Morse <james.morse@arm.com> Cc: Matt Fleming <matt@codeblueprint.co.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: linux-efi@vger.kernel.org Link: https://lkml.kernel.org/r/20191224151025.32482-25-ardb@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/* 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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#ifdef CONFIG_ARM
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#define __efistub_global __section(.data)
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#else
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#define __efistub_global
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#endif
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extern bool __pure nokaslr(void);
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extern bool __pure is_quiet(void);
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extern bool __pure novamap(void);
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extern __pure efi_system_table_t *efi_system_table(void);
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#define pr_efi(msg) do { \
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if (!is_quiet()) efi_printk("EFI stub: "msg); \
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} while (0)
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#define pr_efi_err(msg) efi_printk("EFI stub: ERROR: "msg)
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void efi_char16_printk(efi_char16_t *);
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void efi_char16_printk(efi_char16_t *);
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unsigned long get_dram_base(void);
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efi_status_t allocate_new_fdt_and_exit_boot(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(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(unsigned long size, u8 *out);
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efi_status_t efi_random_alloc(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(void);
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void *get_efi_config_table(efi_guid_t guid);
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/* Helper macros for the usual case of using simple C variables: */
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#ifndef fdt_setprop_inplace_var
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#define fdt_setprop_inplace_var(fdt, node_offset, name, var) \
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fdt_setprop_inplace((fdt), (node_offset), (name), &(var), sizeof(var))
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#endif
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#ifndef fdt_setprop_var
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#define fdt_setprop_var(fdt, node_offset, name, var) \
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fdt_setprop((fdt), (node_offset), (name), &(var), sizeof(var))
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#endif
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#define get_efi_var(name, vendor, ...) \
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efi_rt_call(get_variable, (efi_char16_t *)(name), \
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(efi_guid_t *)(vendor), __VA_ARGS__)
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#define set_efi_var(name, vendor, ...) \
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efi_rt_call(set_variable, (efi_char16_t *)(name), \
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(efi_guid_t *)(vendor), __VA_ARGS__)
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#endif
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