diff options
| author | Appukuttan V K <appukuttan.vk@intel.com> | 2024-04-03 22:57:41 +0530 |
|---|---|---|
| committer | Subrata Banik <subratabanik@google.com> | 2024-04-30 04:46:46 +0000 |
| commit | a63ce30c93c43ccbfde26e9a68e4419e4891ff7f (patch) | |
| tree | 25537df02c581c6063092c915e1f1dc7c99520bc /src/drivers | |
| parent | 9493c2ece2439a7a8253b18448a36dca2964fd69 (diff) | |
drivers/intel/fsp2_0: Make coreboot FSP stack 16-bytes aligned
- Stack alignment:
1. FSP functions must be called with the stack 16-bytes aligned
in x86_64 mode.This is already setup properly with the default
value of the `mpreferred-stack-boundary' compiler option (4).
2. The FSP heap buffer supplied by coreboot through the `StackBase'
UPD must be 16-bytes aligned. This alignment is consistent for
both x86_64 and x86_32 modes to simplify the implementation.
BUG=b:329034258
TEST=Verified on Meteor Lake board (Rex)
Change-Id: I86048c5d3623a29f17a5e492cd67568e4844589c
Signed-off-by: Appukuttan V K <appukuttan.vk@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81661
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Krishna P Bhat D <krishna.p.bhat.d@intel.com>
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/intel/fsp2_0/memory_init.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/drivers/intel/fsp2_0/memory_init.c b/src/drivers/intel/fsp2_0/memory_init.c index 31ae21336c..7e9676c666 100644 --- a/src/drivers/intel/fsp2_0/memory_init.c +++ b/src/drivers/intel/fsp2_0/memory_init.c @@ -34,7 +34,7 @@ void __weak platform_fsp_memory_multi_phase_init_cb(uint32_t phase_index) /* Leave for the SoC/Mainboard to implement if necessary. */ } -static uint8_t temp_ram[CONFIG_FSP_TEMP_RAM_SIZE] __aligned(sizeof(uint64_t)); +static uint8_t temp_ram[CONFIG_FSP_TEMP_RAM_SIZE] __aligned(16); /* * Helper function to store the MRC cache version into CBMEM |