Atmosphere/exosphere2/program/source/secmon_misc.cpp

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/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <exosphere.hpp>
#include "secmon_misc.hpp"
namespace ams::secmon {
namespace {
constinit pkg1::BctParameters g_bct_params = {};
constinit se::Sha256Hash g_package2_hash = {};
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constinit u32 g_deprecated_boot_reason_value = {};
constinit u8 g_deprecated_boot_reason_state = {};
}
void SaveBootInfo(const pkg1::SecureMonitorParameters &secmon_params) {
/* Save the BCT parameters. */
g_bct_params = secmon_params.bct_params;
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/* Save the deprecated boot reason. */
g_deprecated_boot_reason_value = secmon_params.deprecated_boot_reason_value;
g_deprecated_boot_reason_state = secmon_params.deprecated_boot_reason_state;
}
bool IsRecoveryBoot() {
return (g_bct_params.bootloader_attributes & pkg1::BootloaderAttribute_RecoveryBoot) != 0;
}
u32 GetRestrictedSmcMask() {
return (g_bct_params.bootloader_attributes & pkg1::BootloaderAttribute_RestrictedSmcMask) >> pkg1::BootloaderAttribute_RestrictedSmcShift;
}
bool IsJtagEnabled() {
util::BitPack32 dbg_auth;
HW_CPU_GET_DBGAUTHSTATUS_EL1(dbg_auth);
return dbg_auth.Get<hw::DbgAuthStatusEl1::Nsid>() == 3;
}
void GetPackage2Hash(se::Sha256Hash *out) {
*out = g_package2_hash;
}
void SetPackage2Hash(const se::Sha256Hash &hash) {
g_package2_hash = hash;
}
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u32 GetDeprecatedBootReason() {
return (static_cast<u32>(g_deprecated_boot_reason_state) << 24) | (g_deprecated_boot_reason_value & 0x00FFFFFF);
}
}