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fusee_cpp: implement KIP selection

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Michael Scire 2021-09-02 20:40:15 -07:00 • committed by SciresM
parent 622650623c
commit cefdda77e5
7 changed files with 614 additions and 11 deletions
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59
fusee_cpp/program/source/fusee_setup_horizon.cpp
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@ -26,6 +26,7 @@
#include "fusee_package2.hpp"
#include "fusee_malloc.hpp"
#include "fusee_secmon_sync.hpp"
#include "fusee_stratosphere.hpp"
#include "fs/fusee_fs_api.hpp"
namespace ams::nxboot {
@ -562,7 +563,7 @@ namespace ams::nxboot {
}
}
void ConfigureExosphere(fuse::SocType soc_type, ams::TargetFirmware target_firmware, bool emummc_enabled) {
void ConfigureExosphere(fuse::SocType soc_type, ams::TargetFirmware target_firmware, bool emummc_enabled, u32 fs_version) {
/* Get monitor configuration. */
auto &storage_ctx = *secmon::MemoryRegionPhysicalDramMonitorConfiguration.GetPointer<secmon::SecureMonitorStorageConfiguration>();
std::memset(std::addressof(storage_ctx), 0, sizeof(storage_ctx));
@ -579,6 +580,9 @@ namespace ams::nxboot {
storage_ctx.log_port = uart::Port_ReservedDebug;
storage_ctx.log_baud_rate = 115200;
/* Set the fs version. */
storage_ctx.emummc_cfg.base_cfg.fs_version = fs_version;
/* Parse fields from exosphere.ini */
{
IniSectionList sections;
@ -749,6 +753,45 @@ namespace ams::nxboot {
hw::FlushEntireDataCache();
}
bool IsNogcEnabled(ams::TargetFirmware target_firmware) {
/* First parse from ini. */
{
IniSectionList sections;
if (ParseIniSafe(sections, "sdmc:/atmosphere/config/stratosphere.ini")) {
for (const auto &section : sections) {
/* We only care about the [stratosphere] section. */
if (std::strcmp(section.name, "stratosphere")) {
continue;
}
/* Handle individual fields. */
for (const auto &entry : section.kv_list) {
if (std::strcmp(entry.key, "nogc") == 0) {
return entry.value[0] == '1';
}
}
}
}
}
/* That failed, so try to decide automatically. */
const auto fuse_version = fuse::GetFuseVersion();
if (target_firmware >= ams::TargetFirmware_12_0_2 && fuse_version < fuse::GetExpectedFuseVersion(ams::TargetFirmware_12_0_2)) {
return true;
}
if (target_firmware >= ams::TargetFirmware_11_0_0 && fuse_version < fuse::GetExpectedFuseVersion(ams::TargetFirmware_11_0_0)) {
return true;
}
if (target_firmware >= ams::TargetFirmware_9_0_0 && fuse_version < fuse::GetExpectedFuseVersion(ams::TargetFirmware_9_0_0)) {
return true;
}
if (target_firmware >= ams::TargetFirmware_4_0_0 && fuse_version < fuse::GetExpectedFuseVersion(ams::TargetFirmware_4_0_0)) {
return true;
}
return false;
}
}
void SetupAndStartHorizon() {
@ -773,21 +816,25 @@ namespace ams::nxboot {
/* Read/decrypt package2. */
u8 * const package2 = LoadBootConfigAndPackage2();
AMS_UNUSED(package2);
/* Setup warmboot firmware. */
LoadWarmbootFirmware(soc_type, target_firmware, package1);
/* Decide whether to use nogc patches. */
const bool nogc_enabled = IsNogcEnabled(target_firmware);
/* Decide what KIPs/patches we're loading. */
const auto fs_version = ConfigureStratosphere(package2, target_firmware, emummc_enabled, nogc_enabled);
/* Setup exosphere. */
ConfigureExosphere(soc_type, target_firmware, emummc_enabled);
ConfigureExosphere(soc_type, target_firmware, emummc_enabled, fs_version);
/* Start CPU. */
/* NOTE: Security Engine unusable past this point. */
StartCpu();
WaitSecureMonitorState(pkg1::SecureMonitorState_Initialized);
/* Build modified package2. */
RebuildPackage2(target_firmware, emummc_enabled);
/* TODO: Build modified package2. */
WaitForReboot();
}