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| author | Ard Biesheuvel <ardb@kernel.org> | 2020-01-21 10:16:32 +0100 |
|---|---|---|
| committer | Ard Biesheuvel <ardb@kernel.org> | 2020-02-23 21:59:42 +0100 |
| commit | fd26830423e5f7442001f090cd4a53f4b6c3d9fa (patch) | |
| tree | 30ea986efc243e5b643f33f4d99ac6ba7c899278 /include | |
| parent | 8819ba39661efec88efd11610988424cb1bf99f8 (diff) | |
| download | lwn-fd26830423e5f7442001f090cd4a53f4b6c3d9fa.tar.gz lwn-fd26830423e5f7442001f090cd4a53f4b6c3d9fa.zip | |
efi/x86: Drop 'systab' member from struct efi
The systab member in struct efi has outlived its usefulness, now that
we have better ways to access the only piece of information we are
interested in after init, which is the EFI runtime services table
address. So instead of instantiating a doctored copy at early boot
with lots of mangled values, and switching the pointer when switching
into virtual mode, let's grab the values we need directly, and get
rid of the systab pointer entirely.
Tested-by: Tony Luck <tony.luck@intel.com> # arch/ia64
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/efi.h | 52 |
1 files changed, 27 insertions, 25 deletions
diff --git a/include/linux/efi.h b/include/linux/efi.h index 1f69c4c2dd5c..575e6aa39514 100644 --- a/include/linux/efi.h +++ b/include/linux/efi.h @@ -530,31 +530,33 @@ typedef struct { */ extern struct efi { const efi_runtime_services_t *runtime; /* EFI runtime services table */ - efi_system_table_t *systab; /* EFI system table */ - unsigned int runtime_version; /* Runtime services version */ - unsigned long acpi; /* ACPI table (IA64 ext 0.71) */ - unsigned long acpi20; /* ACPI table (ACPI 2.0) */ - unsigned long smbios; /* SMBIOS table (32 bit entry point) */ - unsigned long smbios3; /* SMBIOS table (64 bit entry point) */ - unsigned long esrt; /* ESRT table */ - unsigned long tpm_log; /* TPM2 Event Log table */ - unsigned long tpm_final_log; /* TPM2 Final Events Log table */ - efi_get_time_t *get_time; - efi_set_time_t *set_time; - efi_get_wakeup_time_t *get_wakeup_time; - efi_set_wakeup_time_t *set_wakeup_time; - efi_get_variable_t *get_variable; - efi_get_next_variable_t *get_next_variable; - efi_set_variable_t *set_variable; - efi_set_variable_t *set_variable_nonblocking; - efi_query_variable_info_t *query_variable_info; - efi_query_variable_info_t *query_variable_info_nonblocking; - efi_update_capsule_t *update_capsule; - efi_query_capsule_caps_t *query_capsule_caps; - efi_get_next_high_mono_count_t *get_next_high_mono_count; - efi_reset_system_t *reset_system; - struct efi_memory_map memmap; - unsigned long flags; + unsigned int runtime_version; /* Runtime services version */ + + unsigned long acpi; /* ACPI table (IA64 ext 0.71) */ + unsigned long acpi20; /* ACPI table (ACPI 2.0) */ + unsigned long smbios; /* SMBIOS table (32 bit entry point) */ + unsigned long smbios3; /* SMBIOS table (64 bit entry point) */ + unsigned long esrt; /* ESRT table */ + unsigned long tpm_log; /* TPM2 Event Log table */ + unsigned long tpm_final_log; /* TPM2 Final Events Log table */ + + efi_get_time_t *get_time; + efi_set_time_t *set_time; + efi_get_wakeup_time_t *get_wakeup_time; + efi_set_wakeup_time_t *set_wakeup_time; + efi_get_variable_t *get_variable; + efi_get_next_variable_t *get_next_variable; + efi_set_variable_t *set_variable; + efi_set_variable_t *set_variable_nonblocking; + efi_query_variable_info_t *query_variable_info; + efi_query_variable_info_t *query_variable_info_nonblocking; + efi_update_capsule_t *update_capsule; + efi_query_capsule_caps_t *query_capsule_caps; + efi_get_next_high_mono_count_t *get_next_high_mono_count; + efi_reset_system_t *reset_system; + + struct efi_memory_map memmap; + unsigned long flags; } efi; extern struct mm_struct efi_mm; |