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exo: Add exosphere.ini support and cal0 blanking

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exosphere.ini will always be loaded and the values set by it.

User can still choose to override them with the `cal0blank` and `cal0writesys` in a boot entry.

Override keys get a 0 or 1.
This commit is contained in:
CTCaer
2020-04-30 16:21:38 +03:00
parent f9b0ff70f7
commit 2094ac2bba
3 changed files with 97 additions and 11 deletions
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67
bootloader/hos/secmon_exo.c
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@@ -130,17 +130,22 @@ typedef struct _atm_fatal_error_ctx
// Exosphère mailbox defines.
#define EXO_CFG_ADDR 0x8000F000
#define EXO_MAGIC_VAL 0x304F5845
#define EXO_FLAG_DBG_PRIV (1 << 1)
#define EXO_FLAG_DBG_USER (1 << 2)
#define EXO_FLAG_NO_USER_EXC (1 << 3)
#define EXO_FLAG_USER_PMU (1 << 4)
#define EXO_MAGIC_VAL 0x304F5845
#define EXO_FLAG_DBG_PRIV (1 << 1)
#define EXO_FLAG_DBG_USER (1 << 2)
#define EXO_FLAG_NO_USER_EXC (1 << 3)
#define EXO_FLAG_USER_PMU (1 << 4)
#define EXO_FLAG_CAL0_BLANKING (1 << 5)
#define EXO_FLAG_CAL0_WRITES_SYS (1 << 6)
void config_exosphere(launch_ctxt_t *ctxt)
{
u32 exoFwNo = 0;
u32 exoFlags = 0;
u32 kb = ctxt->pkg1_id->kb;
bool user_debug = false;
bool cal0_blanking = false;
bool cal0_allow_writes_sys = false;
memset((exo_cfg_t *)EXO_CFG_ADDR, 0, sizeof(exo_cfg_t));
@@ -166,18 +171,66 @@ void config_exosphere(launch_ctxt_t *ctxt)
break;
}
if (!ctxt->stock)
{
// Parse exosphere.ini.
LIST_INIT(ini_sections);
if (ini_parse(&ini_sections, "exosphere.ini", false))
{
LIST_FOREACH_ENTRY(ini_sec_t, ini_sec, &ini_sections, link)
{
// Only parse exosphere section.
if (!(ini_sec->type == INI_CHOICE) || strcmp(ini_sec->name, "exosphere"))
continue;
LIST_FOREACH_ENTRY(ini_kv_t, kv, &ini_sec->kvs, link)
{
if (!strcmp("debugmode_user", kv->key))
user_debug = atoi(kv->val);
else if (emu_cfg.enabled && !h_cfg.emummc_force_disable)
{
if (!strcmp("blank_prodinfo_emummc", kv->key))
cal0_blanking = atoi(kv->val);
}
else
{
if (!strcmp("blank_prodinfo_sysmmc", kv->key))
cal0_blanking = atoi(kv->val);
else if (!strcmp("allow_writing_to_cal_sysmmc", kv->key))
cal0_allow_writes_sys = atoi(kv->val);
}
}
break;
}
}
}
// To avoid problems, make private debug mode always on if not semi-stock.
if (!ctxt->stock || (emu_cfg.enabled && !h_cfg.emummc_force_disable))
exoFlags |= EXO_FLAG_DBG_PRIV;
// Enable user debug.
if (user_debug)
exoFlags |= EXO_FLAG_DBG_USER;
// Disable proper failure handling.
if (ctxt->exo_no_user_exceptions)
if (ctxt->exo_cfg.no_user_exceptions)
exoFlags |= EXO_FLAG_NO_USER_EXC;
// Enable user access to PMU.
if (ctxt->exo_user_pmu)
if (ctxt->exo_cfg.user_pmu)
exoFlags |= EXO_FLAG_USER_PMU;
// Check if exo ini value is overridden and enable prodinfo blanking.
if ((ctxt->exo_cfg.cal0_blank && *ctxt->exo_cfg.cal0_blank)
|| (!ctxt->exo_cfg.cal0_blank && cal0_blanking))
exoFlags |= EXO_FLAG_CAL0_BLANKING;
// Check if exo ini value is overridden and allow prodinfo writes.
if ((ctxt->exo_cfg.cal0_allow_writes_sys && *ctxt->exo_cfg.cal0_allow_writes_sys)
|| (!ctxt->exo_cfg.cal0_allow_writes_sys && cal0_allow_writes_sys))
exoFlags |= EXO_FLAG_CAL0_WRITES_SYS;
// Set mailbox values.
exo_cfg->magic = EXO_MAGIC_VAL;
exo_cfg->fwno = exoFwNo;