diff options
Diffstat (limited to 'src/include/cpu/x86')
| -rw-r--r-- | src/include/cpu/x86/smm.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/include/cpu/x86/smm.h b/src/include/cpu/x86/smm.h index 3071106080..edd1be8588 100644 --- a/src/include/cpu/x86/smm.h +++ b/src/include/cpu/x86/smm.h @@ -583,4 +583,26 @@ int smm_load_module(void *smram, size_t size, struct smm_loader_params *params); void *backup_default_smm_area(void); void restore_default_smm_area(void *smm_save_area); +/* + * Fills in the arguments for the entire SMM region covered by chipset + * protections. e.g. TSEG. + */ +void smm_region(void **start, size_t *size); +void smm_region_info(void **start, size_t *size); + +enum { + /* SMM handler area. */ + SMM_SUBREGION_HANDLER, + /* SMM cache region. */ + SMM_SUBREGION_CACHE, + /* Chipset specific area. */ + SMM_SUBREGION_CHIPSET, + /* Total sub regions supported. */ + SMM_SUBREGION_NUM, +}; + +/* Fills in the start and size for the requested SMM subregion. Returns + * 0 on success, < 0 on failure. */ +int smm_subregion(int sub, void **start, size_t *size); + #endif /* CPU_X86_SMM_H */ |