GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

cpu/x86/mp_init.c: Fix HAVE_SMI_HANDLER 

Fixes commit 29c7622 ("cpu/x86/mp_init.c: Fix building with no
smihandler") broke SMM init because is_smm_enable() was called before
smm_enable.

Rework the code a little to make it clear what codepaths are used with
CONFIG_HAVE_SMI_HANDLER.

TESTED: now prodrive/hermes boots again.

Change-Id: If4ce0dca2f29754d131dacf2da63e946be9a7b6d
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/59912
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Subrata Banik <subrata.banik@intel.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Arthur Heymans 2021-12-06 11:42:03 +01:00 committed by Subrata Banik
parent df808f3619
commit 7d925c5fb8
1 changed files with 19 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/cpu/x86/mp_init.c
View File

@ -1061,27 +1061,13 @@ static size_t smm_stub_size(void)
return rmodule_memory_size(&smm_stub);
}
static void fill_mp_state(struct mp_state *state, const struct mp_ops *ops)
static void fill_mp_state_smm(struct mp_state *state, const struct mp_ops *ops)
{
/*
* Make copy of the ops so that defaults can be set in the non-const
* structure if needed.
*/
memcpy(&state->ops, ops, sizeof(*ops));
if (ops->get_cpu_count != NULL)
state->cpu_count = ops->get_cpu_count();
if (!is_smm_enabled())
return;
if (ops->get_smm_info != NULL)
ops->get_smm_info(&state->perm_smbase, &state->perm_smsize,
&state->smm_real_save_state_size);
if (CONFIG(HAVE_SMI_HANDLER))
state->smm_save_state_size = MAX(state->smm_real_save_state_size,
smm_stub_size());
state->smm_save_state_size = MAX(state->smm_real_save_state_size, smm_stub_size());
/*
* Make sure there is enough room for the SMM descriptor
@ -1095,11 +1081,25 @@ static void fill_mp_state(struct mp_state *state, const struct mp_ops *ops)
* Default to smm_initiate_relocation() if trigger callback isn't
* provided.
*/
if (CONFIG(HAVE_SMI_HANDLER) &&
ops->per_cpu_smm_trigger == NULL)
if (ops->per_cpu_smm_trigger == NULL)
mp_state.ops.per_cpu_smm_trigger = smm_initiate_relocation;
}
static void fill_mp_state(struct mp_state *state, const struct mp_ops *ops)
{
/*
* Make copy of the ops so that defaults can be set in the non-const
* structure if needed.
*/
memcpy(&state->ops, ops, sizeof(*ops));
if (ops->get_cpu_count != NULL)
state->cpu_count = ops->get_cpu_count();
if (CONFIG(HAVE_SMI_HANDLER))
fill_mp_state_smm(state, ops);
}
static enum cb_err do_mp_init_with_smm(struct bus *cpu_bus, const struct mp_ops *mp_ops)
{
enum cb_err ret;