Файловый менеджер

Файловый менеджер - Редактировать - /usr/src/linux-headers-5.4.0-200/arch/x86/include/asm/efi.h

Назад
/* SPDX-License-Identifier: GPL-2.0 / #ifndef _ASM_X86_EFI_H #define _ASM_X86_EFI_H #include <asm/fpu/api.h> #include <asm/pgtable.h> #include <asm/processor-flags.h> #include <asm/tlb.h> #include <asm/nospec-branch.h> #include <asm/mmu_context.h> / * We map the EFI regions needed for runtime services non-contiguously, * with preserved alignment on virtual addresses starting from -4G down * for a total max space of 64G. This way, we provide for stable runtime * services addresses across kernels so that a kexec'd kernel can still * use them. * * This is the main reason why we're doing stable VA mappings for RT * services. * * This flag is used in conjunction with a chicken bit called * "efi=old_map" which can be used as a fallback to the old runtime * services mapping method in case there's some b0rkage with a * particular EFI implementation (haha, it is hard to hold up the * sarcasm here...). / #define EFI_OLD_MEMMAP EFI_ARCH_1 #define EFI32_LOADER_SIGNATURE "EL32" #define EFI64_LOADER_SIGNATURE "EL64" #define MAX_CMDLINE_ADDRESS UINT_MAX #define ARCH_EFI_IRQ_FLAGS_MASK X86_EFLAGS_IF #ifdef CONFIG_X86_32 extern asmlinkage unsigned long efi_call_phys(void , ...); #define arch_efi_call_virt_setup() \ ({ \ kernel_fpu_begin(); \ firmware_restrict_branch_speculation_start(); \ }) #define arch_efi_call_virt_teardown() \ ({ \ firmware_restrict_branch_speculation_end(); \ kernel_fpu_end(); \ }) /* * Wrap all the virtual calls in a way that forces the parameters on the stack. / #define arch_efi_call_virt(p, f, args...) \ ({ \ ((efi_##f##_t __attribute__((regparm(0)))) p->f)(args); \ }) #define efi_ioremap(addr, size, type, attr) ioremap_cache(addr, size) #else /* !CONFIG_X86_32 / #define EFI_LOADER_SIGNATURE "EL64" extern asmlinkage u64 efi_call(void fp, ...); #define efi_call_phys(f, args...) efi_call((f), args) /* * struct efi_scratch - Scratch space used while switching to/from efi_mm * @phys_stack: stack used during EFI Mixed Mode * @prev_mm: store/restore stolen mm_struct while switching to/from efi_mm / struct efi_scratch { u64 phys_stack; struct mm_struct prev_mm; } __packed; #define arch_efi_call_virt_setup() \ ({ \ efi_sync_low_kernel_mappings(); \ kernel_fpu_begin(); \ firmware_restrict_branch_speculation_start(); \ \ if (!efi_enabled(EFI_OLD_MEMMAP)) \ efi_switch_mm(&efi_mm); \ }) #define arch_efi_call_virt(p, f, args...) \ efi_call((void )p->f, args) \ #define arch_efi_call_virt_teardown() \ ({ \ if (!efi_enabled(EFI_OLD_MEMMAP)) \ efi_switch_mm(efi_scratch.prev_mm); \ \ firmware_restrict_branch_speculation_end(); \ kernel_fpu_end(); \ }) extern void __iomem __init efi_ioremap(unsigned long addr, unsigned long size, u32 type, u64 attribute); #ifdef CONFIG_KASAN /* * CONFIG_KASAN may redefine memset to __memset. __memset function is present * only in kernel binary. Since the EFI stub linked into a separate binary it * doesn't have __memset(). So we should use standard memset from * arch/x86/boot/compressed/string.c. The same applies to memcpy and memmove. / #undef memcpy #undef memset #undef memmove #endif #endif / CONFIG_X86_32 / extern struct efi_scratch efi_scratch; extern void __init efi_set_executable(efi_memory_desc_t md, bool executable); extern int __init efi_memblock_x86_reserve_range(void); extern pgd_t * __init efi_call_phys_prolog(void); extern void __init efi_call_phys_epilog(pgd_t save_pgd); extern void __init efi_print_memmap(void); extern void __init efi_memory_uc(u64 addr, unsigned long size); extern void __init efi_map_region(efi_memory_desc_t md); extern void __init efi_map_region_fixed(efi_memory_desc_t md); extern void efi_sync_low_kernel_mappings(void); extern int __init efi_alloc_page_tables(void); extern int __init efi_setup_page_tables(unsigned long pa_memmap, unsigned num_pages); extern void __init old_map_region(efi_memory_desc_t md); extern void __init runtime_code_page_mkexec(void); extern void __init efi_runtime_update_mappings(void); extern void __init efi_dump_pagetable(void); extern void __init efi_apply_memmap_quirks(void); extern int __init efi_reuse_config(u64 tables, int nr_tables); extern void efi_delete_dummy_variable(void); extern void efi_switch_mm(struct mm_struct mm); extern void efi_recover_from_page_fault(unsigned long phys_addr); extern void efi_free_boot_services(void); extern void efi_reserve_boot_services(void); struct efi_setup_data { u64 fw_vendor; u64 runtime; u64 tables; u64 smbios; u64 reserved[8]; }; extern u64 efi_setup; #ifdef CONFIG_EFI static inline bool efi_is_native(void) { return IS_ENABLED(CONFIG_X86_64) == efi_enabled(EFI_64BIT); } static inline bool efi_runtime_supported(void) { if (efi_is_native()) return true; if (IS_ENABLED(CONFIG_EFI_MIXED) && !efi_enabled(EFI_OLD_MEMMAP)) return true; return false; } extern void parse_efi_setup(u64 phys_addr, u32 data_len); extern void efifb_setup_from_dmi(struct screen_info si, const char opt); #ifdef CONFIG_EFI_MIXED extern void efi_thunk_runtime_setup(void); extern efi_status_t efi_thunk_set_virtual_address_map( void phys_set_virtual_address_map, unsigned long memory_map_size, unsigned long descriptor_size, u32 descriptor_version, efi_memory_desc_t virtual_map); #else static inline void efi_thunk_runtime_setup(void) {} static inline efi_status_t efi_thunk_set_virtual_address_map( void phys_set_virtual_address_map, unsigned long memory_map_size, unsigned long descriptor_size, u32 descriptor_version, efi_memory_desc_t virtual_map) { return EFI_SUCCESS; } #endif / CONFIG_EFI_MIXED / / arch specific definitions used by the stub code / struct efi_config { u64 image_handle; u64 table; u64 runtime_services; u64 boot_services; u64 text_output; efi_status_t (call)(unsigned long, ...); bool is64; } __packed; __pure const struct efi_config __efi_early(void); static inline bool efi_is_64bit(void) { if (!IS_ENABLED(CONFIG_X86_64)) return false; if (!IS_ENABLED(CONFIG_EFI_MIXED)) return true; return __efi_early()->is64; } #define efi_table_attr(table, attr, instance) \ (efi_is_64bit() ? \ ((table##_64_t )(unsigned long)instance)->attr : \ ((table##_32_t )(unsigned long)instance)->attr) #define efi_call_proto(protocol, f, instance, ...) \ __efi_early()->call(efi_table_attr(protocol, f, instance), \ instance, ##__VA_ARGS__) #define efi_call_early(f, ...) \ __efi_early()->call(efi_table_attr(efi_boot_services, f, \ __efi_early()->boot_services), __VA_ARGS__) #define __efi_call_early(f, ...) \ __efi_early()->call((unsigned long)f, __VA_ARGS__); #define efi_call_runtime(f, ...) \ __efi_early()->call(efi_table_attr(efi_runtime_services, f, \ __efi_early()->runtime_services), __VA_ARGS__) extern bool efi_reboot_required(void); extern bool efi_is_table_address(unsigned long phys_addr); #else static inline void parse_efi_setup(u64 phys_addr, u32 data_len) {} static inline bool efi_reboot_required(void) { return false; } static inline bool efi_is_table_address(unsigned long phys_addr) { return false; } #endif / CONFIG_EFI / #endif / _ASM_X86_EFI_H */

| ver. 1.4 | Github | . | PHP 7.4.3-4ubuntu2.24 | Генерация страницы: 0 | proxy | phpinfo | Настройка