diff options
Diffstat (limited to 'src/cpu/x86/mp_init.c')
| -rw-r--r-- | src/cpu/x86/mp_init.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/src/cpu/x86/mp_init.c b/src/cpu/x86/mp_init.c index 0d9cd418e8..2255841220 100644 --- a/src/cpu/x86/mp_init.c +++ b/src/cpu/x86/mp_init.c @@ -755,6 +755,9 @@ static void adjust_smm_apic_id_map(struct smm_loader_params *smm_params) static enum cb_err install_relocation_handler(int num_cpus, size_t save_state_size) { + if (CONFIG(X86_SMM_SKIP_RELOCATION_HANDLER)) + return CB_SUCCESS; + struct smm_loader_params smm_params = { .num_cpus = num_cpus, .cpu_save_state_size = save_state_size, @@ -1136,9 +1139,13 @@ static enum cb_err do_mp_init_with_smm(struct bus *cpu_bus, const struct mp_ops } /* Sanity check SMM state. */ - if (mp_state.perm_smsize != 0 && mp_state.smm_save_state_size != 0 && - mp_state.ops.relocation_handler != NULL) - smm_enable(); + smm_enable(); + if (mp_state.perm_smsize == 0) + smm_disable(); + if (mp_state.smm_save_state_size == 0) + smm_disable(); + if (!CONFIG(X86_SMM_SKIP_RELOCATION_HANDLER) && mp_state.ops.relocation_handler == NULL) + smm_disable(); if (is_smm_enabled()) printk(BIOS_INFO, "Will perform SMM setup.\n"); @@ -1151,12 +1158,14 @@ static enum cb_err do_mp_init_with_smm(struct bus *cpu_bus, const struct mp_ops mp_params.flight_plan = &mp_steps[0]; mp_params.num_records = ARRAY_SIZE(mp_steps); - /* Perform backup of default SMM area. */ - default_smm_area = backup_default_smm_area(); + /* Perform backup of default SMM area when using SMM relocation handler. */ + if (!CONFIG(X86_SMM_SKIP_RELOCATION_HANDLER)) + default_smm_area = backup_default_smm_area(); ret = mp_init(cpu_bus, &mp_params); - restore_default_smm_area(default_smm_area); + if (!CONFIG(X86_SMM_SKIP_RELOCATION_HANDLER)) + restore_default_smm_area(default_smm_area); /* Signal callback on success if it's provided. */ if (ret == CB_SUCCESS && mp_state.ops.post_mp_init != NULL) |