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arch/x86/car.ld: Account for FSP-T reserved area 

Tested
 - on ocp/deltalake: boots (with FSP-T).
 - qemu/i440fx: BUILD_TIMELESS=1 results in the same binary.

Change-Id: I7e364ab039b65766eb95538db6b3507bbfbfb487
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49084
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
This commit is contained in:
Arthur Heymans 2021-01-04 12:22:57 +01:00
parent aaa69b621b
commit 9789689e41
2 changed files with 16 additions and 1 deletions
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8
src/arch/x86/car.ld
View File

@ -80,13 +80,19 @@
REGION(asan_shadow, ., _shadow_size, ARCH_POINTER_ALIGN_SIZE) REGION(asan_shadow, ., _shadow_size, ARCH_POINTER_ALIGN_SIZE)
#endif #endif
_car_unallocated_start = .; _car_unallocated_start = .;
_car_region_end = . + CONFIG_DCACHE_RAM_SIZE - (. - _car_region_start); _car_region_end = . + CONFIG_DCACHE_RAM_SIZE - (. - _car_region_start)
- CONFIG_FSP_T_RESERVED_SIZE;
} }
. = _car_region_end; . = _car_region_end;
.car.mrc_var . (NOLOAD) : { .car.mrc_var . (NOLOAD) : {
. += CONFIG_DCACHE_RAM_MRC_VAR_SIZE; . += CONFIG_DCACHE_RAM_MRC_VAR_SIZE;
} }
. = _car_region_end;
.car.fspt_reserved . (NOLOAD) : {
. += CONFIG_FSP_T_RESERVED_SIZE;
}
#if ENV_BOOTBLOCK #if ENV_BOOTBLOCK
_car_mtrr_end = .; _car_mtrr_end = .;
_car_mtrr_start = _car_region_start; _car_mtrr_start = _car_region_start;

9
src/drivers/intel/fsp2_0/Kconfig
View File

@ -117,6 +117,15 @@ config FSP_CAR
help help
Use FSP APIs to initialize & Tear Down the Cache-As-Ram Use FSP APIs to initialize & Tear Down the Cache-As-Ram
config FSP_T_RESERVED_SIZE
hex
default 0x100 if FSP_CAR
default 0x0
help
This is the size of the area reserved by FSP-T. This is not
defined in the FSP specification but in the SOC integration
guides.
config FSP_M_XIP config FSP_M_XIP
bool bool
default n default n