127 lines
2.8 KiB
C
127 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef BOOT_COMPRESSED_EFI_H
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#define BOOT_COMPRESSED_EFI_H
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#if defined(_LINUX_EFI_H) || defined(_ASM_X86_EFI_H)
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#error Please do not include kernel proper namespace headers
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#endif
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typedef guid_t efi_guid_t __aligned(__alignof__(u32));
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#define EFI_GUID(a, b, c, d...) (efi_guid_t){ { \
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(a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
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(b) & 0xff, ((b) >> 8) & 0xff, \
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(c) & 0xff, ((c) >> 8) & 0xff, d } }
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#define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
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#define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81)
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#define EFI_CC_BLOB_GUID EFI_GUID(0x067b1f5f, 0xcf26, 0x44c5, 0x85, 0x54, 0x93, 0xd7, 0x77, 0x91, 0x2d, 0x42)
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#define EFI32_LOADER_SIGNATURE "EL32"
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#define EFI64_LOADER_SIGNATURE "EL64"
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/*
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* Generic EFI table header
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*/
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typedef struct {
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u64 signature;
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u32 revision;
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u32 headersize;
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u32 crc32;
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u32 reserved;
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} efi_table_hdr_t;
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#define EFI_CONVENTIONAL_MEMORY 7
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#define EFI_MEMORY_MORE_RELIABLE \
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((u64)0x0000000000010000ULL) /* higher reliability */
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#define EFI_MEMORY_SP ((u64)0x0000000000040000ULL) /* soft reserved */
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#define EFI_PAGE_SHIFT 12
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typedef struct {
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u32 type;
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u32 pad;
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u64 phys_addr;
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u64 virt_addr;
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u64 num_pages;
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u64 attribute;
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} efi_memory_desc_t;
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#define efi_early_memdesc_ptr(map, desc_size, n) \
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(efi_memory_desc_t *)((void *)(map) + ((n) * (desc_size)))
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typedef struct {
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efi_guid_t guid;
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u64 table;
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} efi_config_table_64_t;
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typedef struct {
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efi_guid_t guid;
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u32 table;
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} efi_config_table_32_t;
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typedef struct {
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efi_table_hdr_t hdr;
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u64 fw_vendor; /* physical addr of CHAR16 vendor string */
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u32 fw_revision;
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u32 __pad1;
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u64 con_in_handle;
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u64 con_in;
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u64 con_out_handle;
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u64 con_out;
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u64 stderr_handle;
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u64 stderr;
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u64 runtime;
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u64 boottime;
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u32 nr_tables;
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u32 __pad2;
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u64 tables;
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} efi_system_table_64_t;
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typedef struct {
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efi_table_hdr_t hdr;
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u32 fw_vendor; /* physical addr of CHAR16 vendor string */
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u32 fw_revision;
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u32 con_in_handle;
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u32 con_in;
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u32 con_out_handle;
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u32 con_out;
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u32 stderr_handle;
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u32 stderr;
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u32 runtime;
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u32 boottime;
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u32 nr_tables;
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u32 tables;
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} efi_system_table_32_t;
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/* kexec external ABI */
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struct efi_setup_data {
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u64 fw_vendor;
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u64 __unused;
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u64 tables;
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u64 smbios;
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u64 reserved[8];
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};
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static inline int efi_guidcmp (efi_guid_t left, efi_guid_t right)
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{
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return memcmp(&left, &right, sizeof (efi_guid_t));
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}
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#ifdef CONFIG_EFI
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bool __pure __efi_soft_reserve_enabled(void);
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static inline bool __pure efi_soft_reserve_enabled(void)
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{
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return IS_ENABLED(CONFIG_EFI_SOFT_RESERVE)
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&& __efi_soft_reserve_enabled();
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}
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#else
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static inline bool efi_soft_reserve_enabled(void)
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{
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return false;
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}
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#endif /* CONFIG_EFI */
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#endif /* BOOT_COMPRESSED_EFI_H */
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