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| author | Martin Roth <gaumless@gmail.com> | 2015-01-11 14:11:55 -0700 |
|---|---|---|
| committer | Martin Roth <gaumless@gmail.com> | 2015-01-29 04:33:53 +0100 |
| commit | 5fc32bf5e6d26646f0e646cc70ccf48b7417ec43 (patch) | |
| tree | dc1d7cc53d17d676a05a3750a4f2aa70ca61f5cb | |
| parent | 80572851195243640f7531dd7f064e8b3f62a40d (diff) | |
| download | coreboot-5fc32bf5e6d26646f0e646cc70ccf48b7417ec43.tar.xz | |
drivers/intel/fsp: Add find_saved_temp_mem()
Add a function to retrieve the location of the CAR temporary memory
that was saved by the FSP into the HOB structure.
Change-Id: I2635de5207cd699740721d333a7706425b837651
Signed-off-by: Martin Roth <gaumless@gmail.com>
Reviewed-on: http://review.coreboot.org/8194
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Tested-by: build bot (Jenkins)
| -rw-r--r-- | src/drivers/intel/fsp/fsp_util.c | 18 | ||||
| -rw-r--r-- | src/drivers/intel/fsp/fsp_util.h | 7 |
2 files changed, 25 insertions, 0 deletions
diff --git a/src/drivers/intel/fsp/fsp_util.c b/src/drivers/intel/fsp/fsp_util.c index d0ed9cfd6a..0844b37bb7 100644 --- a/src/drivers/intel/fsp/fsp_util.c +++ b/src/drivers/intel/fsp/fsp_util.c @@ -177,6 +177,24 @@ volatile u8 * find_fsp () return (fsp_ptr); } +/** finds the saved temporary memory information in the FSP HOB list + * + * @param hob_list_ptr pointer to the start of the hob list + * @return pointer to saved CAR MEM or NULL if not found. + */ +void * find_saved_temp_mem(void *hob_list_ptr) +{ + EFI_GUID temp_hob_guid = FSP_BOOTLOADER_TEMPORARY_MEMORY_HOB_GUID; + EFI_HOB_GUID_TYPE *saved_mem_hob = + (EFI_HOB_GUID_TYPE *) find_hob_by_guid( + hob_list_ptr, &temp_hob_guid); + + if (saved_mem_hob == NULL) + return NULL; + + return (void *) ((char *) saved_mem_hob + sizeof(EFI_HOB_GUID_TYPE)); +} + #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 3c72f24e4c..a39f5a2700 100644 --- a/src/drivers/intel/fsp/fsp_util.h +++ b/src/drivers/intel/fsp/fsp_util.h @@ -37,6 +37,7 @@ void print_fsp_info(void); 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); /* functions in hob.c */ void print_hob_mem_attributes(void *Hobptr); @@ -124,4 +125,10 @@ extern void *FspHobListPtr; UpdData->member?"Enabled":"Disabled"); \ break; + +#ifndef FSP_BOOTLOADER_TEMPORARY_MEMORY_HOB_GUID +#define FSP_BOOTLOADER_TEMPORARY_MEMORY_HOB_GUID \ + { 0xbbcff46c, 0xc8d3, 0x4113, { 0x89, 0x85, 0xb9, 0xd4, 0xf3, 0xb3, 0xf6, 0x4e } }; +#endif + #endif /* FSP_UTIL_H */ |