diff options
Diffstat (limited to 'include/linux/efi.h')
| -rw-r--r-- | include/linux/efi.h | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index 8b84916dc671..9bf2f1fcae27 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -618,18 +618,30 @@ extern int __init efi_setup_pcdp_console(char *); #endif /* - * We play games with efi_enabled so that the compiler will, if possible, remove - * EFI-related code altogether. + * We play games with efi_enabled so that the compiler will, if + * possible, remove EFI-related code altogether. */ +#define EFI_BOOT 0 /* Were we booted from EFI? */ +#define EFI_SYSTEM_TABLES 1 /* Can we use EFI system tables? */ +#define EFI_CONFIG_TABLES 2 /* Can we use EFI config tables? */ +#define EFI_RUNTIME_SERVICES 3 /* Can we use runtime services? */ +#define EFI_MEMMAP 4 /* Can we use EFI memory map? */ +#define EFI_64BIT 5 /* Is the firmware 64-bit? */ + #ifdef CONFIG_EFI # ifdef CONFIG_X86 - extern int efi_enabled; - extern bool efi_64bit; +extern int efi_enabled(int facility); # else -# define efi_enabled 1 +static inline int efi_enabled(int facility) +{ + return 1; +} # endif #else -# define efi_enabled 0 +static inline int efi_enabled(int facility) +{ + return 0; +} #endif /* @@ -728,7 +740,8 @@ struct efivars { * 1) ->list - adds, removals, reads, writes * 2) ops.[gs]et_variable() calls. * It must not be held when creating sysfs entries or calling kmalloc. - * ops.get_next_variable() is only called from register_efivars(), + * ops.get_next_variable() is only called from register_efivars() + * or efivar_update_sysfs_entries(), * which is protected by the BKL, so that path is safe. */ spinlock_t lock; |