diff options
Diffstat (limited to 'src/drivers/intel/fsp')
| -rw-r--r-- | src/drivers/intel/fsp/fsp_util.c | 20 | ||||
| -rw-r--r-- | src/drivers/intel/fsp/fsp_util.h | 1 |
2 files changed, 21 insertions, 0 deletions
diff --git a/src/drivers/intel/fsp/fsp_util.c b/src/drivers/intel/fsp/fsp_util.c index 0844b37bb7..2a53c25332 100644 --- a/src/drivers/intel/fsp/fsp_util.c +++ b/src/drivers/intel/fsp/fsp_util.c @@ -195,6 +195,26 @@ void * find_saved_temp_mem(void *hob_list_ptr) return (void *) ((char *) saved_mem_hob + sizeof(EFI_HOB_GUID_TYPE)); } +#ifndef FSP_RESERVE_MEMORY_SIZE +/** @brief locates the HOB containing the location of the fsp reserved mem area + * + * @param hob_list_ptr pointer to the start of the hob list + * @return pointer to the start of the FSP reserved memory or NULL if not found. + */ +void * find_fsp_reserved_mem(void *hob_list_ptr) +{ + EFI_GUID fsp_reserved_guid = FSP_HOB_RESOURCE_OWNER_FSP_GUID; + EFI_HOB_RESOURCE_DESCRIPTOR *fsp_reserved_mem = + (EFI_HOB_RESOURCE_DESCRIPTOR *) find_hob_by_guid( + hob_list_ptr, &fsp_reserved_guid); + + if (fsp_reserved_mem == NULL) + return NULL; + + return (void *)((uintptr_t)fsp_reserved_mem->PhysicalStart); +} +#endif /* FSP_RESERVE_MEMORY_SIZE */ + #ifndef __PRE_RAM__ /* Only parse HOB data in ramstage */ void print_fsp_info(void) { diff --git a/src/drivers/intel/fsp/fsp_util.h b/src/drivers/intel/fsp/fsp_util.h index a39f5a2700..d65b842c56 100644 --- a/src/drivers/intel/fsp/fsp_util.h +++ b/src/drivers/intel/fsp/fsp_util.h @@ -38,6 +38,7 @@ void chipset_fsp_early_init(FSP_INIT_PARAMS *FspInitParams, FSP_INFO_HEADER *fsp_ptr); void ChipsetFspReturnPoint(EFI_STATUS Status, VOID *HobListPtr); void * find_saved_temp_mem(void *hob_list_ptr); +void * find_fsp_reserved_mem(void *hob_list_ptr); /* functions in hob.c */ void print_hob_mem_attributes(void *Hobptr); |