diff options
Diffstat (limited to 'src/cpu')
| -rw-r--r-- | src/cpu/x86/mp_init.c | 21 |
1 files changed, 13 insertions, 8 deletions
diff --git a/src/cpu/x86/mp_init.c b/src/cpu/x86/mp_init.c index 331f3b552a..c747207f7c 100644 --- a/src/cpu/x86/mp_init.c +++ b/src/cpu/x86/mp_init.c @@ -1044,17 +1044,22 @@ static void fill_mp_state(struct mp_state *state, const struct mp_ops *ops) /* * Make sure there is enough room for the SMM descriptor */ - if (CONFIG(STM)) + if (CONFIG(STM)) { state->smm_save_state_size += sizeof(TXT_PROCESSOR_SMM_DESCRIPTOR); - /* Currently, the CPU SMM save state size is based on a simplistic - * algorithm. (align on 4K) - * note: In the future, this will need to handle newer x86 processors - * that require alignment of the save state on 32K boundaries. - */ - state->smm_save_state_size = - ALIGN_UP(state->smm_save_state_size, 0x1000); + /* Currently, the CPU SMM save state size is based on a simplistic + * algorithm. (align on 4K) + * note: In the future, this will need to handle newer x86 processors + * that require alignment of the save state on 32K boundaries. + * The alignment is done here because coreboot has a hard coded + * value of 0x400 for this value. + * Also, this alignment only works on CPUs less than 5 threads + */ + if (CONFIG(STM)) + state->smm_save_state_size = + ALIGN_UP(state->smm_save_state_size, 0x1000); + } /* * Default to smm_initiate_relocation() if trigger callback isn't |