cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

efi.h (2884B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2#ifndef BOOT_COMPRESSED_EFI_H
      3#define BOOT_COMPRESSED_EFI_H
      4
      5#if defined(_LINUX_EFI_H) || defined(_ASM_X86_EFI_H)
      6#error Please do not include kernel proper namespace headers
      7#endif
      8
      9typedef guid_t efi_guid_t __aligned(__alignof__(u32));
     10
     11#define EFI_GUID(a, b, c, d...) (efi_guid_t){ {					\
     12	(a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff,	\
     13	(b) & 0xff, ((b) >> 8) & 0xff,						\
     14	(c) & 0xff, ((c) >> 8) & 0xff, d } }
     15
     16#define ACPI_TABLE_GUID				EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3,  0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
     17#define ACPI_20_TABLE_GUID			EFI_GUID(0x8868e871, 0xe4f1, 0x11d3,  0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81)
     18#define EFI_CC_BLOB_GUID			EFI_GUID(0x067b1f5f, 0xcf26, 0x44c5, 0x85, 0x54, 0x93, 0xd7, 0x77, 0x91, 0x2d, 0x42)
     19
     20#define EFI32_LOADER_SIGNATURE	"EL32"
     21#define EFI64_LOADER_SIGNATURE	"EL64"
     22
     23/*
     24 * Generic EFI table header
     25 */
     26typedef	struct {
     27	u64 signature;
     28	u32 revision;
     29	u32 headersize;
     30	u32 crc32;
     31	u32 reserved;
     32} efi_table_hdr_t;
     33
     34#define EFI_CONVENTIONAL_MEMORY		 7
     35
     36#define EFI_MEMORY_MORE_RELIABLE \
     37				((u64)0x0000000000010000ULL)	/* higher reliability */
     38#define EFI_MEMORY_SP		((u64)0x0000000000040000ULL)	/* soft reserved */
     39
     40#define EFI_PAGE_SHIFT		12
     41
     42typedef struct {
     43	u32 type;
     44	u32 pad;
     45	u64 phys_addr;
     46	u64 virt_addr;
     47	u64 num_pages;
     48	u64 attribute;
     49} efi_memory_desc_t;
     50
     51#define efi_early_memdesc_ptr(map, desc_size, n)			\
     52	(efi_memory_desc_t *)((void *)(map) + ((n) * (desc_size)))
     53
     54typedef struct {
     55	efi_guid_t guid;
     56	u64 table;
     57} efi_config_table_64_t;
     58
     59typedef struct {
     60	efi_guid_t guid;
     61	u32 table;
     62} efi_config_table_32_t;
     63
     64typedef struct {
     65	efi_table_hdr_t hdr;
     66	u64 fw_vendor;	/* physical addr of CHAR16 vendor string */
     67	u32 fw_revision;
     68	u32 __pad1;
     69	u64 con_in_handle;
     70	u64 con_in;
     71	u64 con_out_handle;
     72	u64 con_out;
     73	u64 stderr_handle;
     74	u64 stderr;
     75	u64 runtime;
     76	u64 boottime;
     77	u32 nr_tables;
     78	u32 __pad2;
     79	u64 tables;
     80} efi_system_table_64_t;
     81
     82typedef struct {
     83	efi_table_hdr_t hdr;
     84	u32 fw_vendor;	/* physical addr of CHAR16 vendor string */
     85	u32 fw_revision;
     86	u32 con_in_handle;
     87	u32 con_in;
     88	u32 con_out_handle;
     89	u32 con_out;
     90	u32 stderr_handle;
     91	u32 stderr;
     92	u32 runtime;
     93	u32 boottime;
     94	u32 nr_tables;
     95	u32 tables;
     96} efi_system_table_32_t;
     97
     98/* kexec external ABI */
     99struct efi_setup_data {
    100	u64 fw_vendor;
    101	u64 __unused;
    102	u64 tables;
    103	u64 smbios;
    104	u64 reserved[8];
    105};
    106
    107static inline int efi_guidcmp (efi_guid_t left, efi_guid_t right)
    108{
    109	return memcmp(&left, &right, sizeof (efi_guid_t));
    110}
    111
    112#ifdef CONFIG_EFI
    113bool __pure __efi_soft_reserve_enabled(void);
    114
    115static inline bool __pure efi_soft_reserve_enabled(void)
    116{
    117	return IS_ENABLED(CONFIG_EFI_SOFT_RESERVE)
    118		&& __efi_soft_reserve_enabled();
    119}
    120#else
    121static inline bool efi_soft_reserve_enabled(void)
    122{
    123	return false;
    124}
    125#endif /* CONFIG_EFI */
    126#endif /* BOOT_COMPRESSED_EFI_H */