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exo2: fix a number of bugs, add temp debug-log code

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This commit is contained in:
Michael Scire 2020-05-16 03:29:50 -07:00 committed by SciresM
parent aa50944568
commit bb3a8a888f
5 changed files with 48 additions and 5 deletions
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2
exosphere2/program/source/boot/secmon_boot_setup.cpp
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@ -166,7 +166,7 @@ namespace ams::secmon::boot {
se::DecryptAes128(work_block, se::AesBlockSize, slot, is_prod ? MasterKeyVectorsProd[i] : MasterKeyVectorsDev[i], se::AesBlockSize);
/* Set the old master key. */
SetMasterKey(generation - 1, work_block, se::AesBlockSize);
SetMasterKey(i - 1, work_block, se::AesBlockSize);
/* Set the old master key into a temporary keyslot. */
se::SetAesKey(pkg1::AesKeySlot_Temporary, work_block, se::AesBlockSize);

4
exosphere2/program/source/secmon_key_storage.cpp
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@ -86,7 +86,7 @@ namespace ams::secmon {
}
void LoadMasterKey(int slot, int generation) {
const int index = std::min(0, generation - pkg1::KeyGeneration_Min);
const int index = std::max(0, generation - pkg1::KeyGeneration_Min);
se::SetEncryptedAesKey128(slot, pkg1::AesKeySlot_RandomForKeyStorageWrap, GetMasterKeyStorage(index), se::AesBlockSize);
}
@ -96,7 +96,7 @@ namespace ams::secmon {
}
void LoadDeviceMasterKey(int slot, int generation) {
const int index = std::min(0, generation - pkg1::KeyGeneration_4_0_0);
const int index = std::max(0, generation - pkg1::KeyGeneration_4_0_0);
se::SetEncryptedAesKey128(slot, pkg1::AesKeySlot_RandomForKeyStorageWrap, GetDeviceMasterKeyStorage(index), se::AesBlockSize);
}

2
exosphere2/program/source/secmon_map.cpp
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@ -101,7 +101,7 @@ namespace ams::secmon {
}
uintptr_t MapSmcUserPage(uintptr_t address) {
if (g_smc_user_page_physical_address != 0) {
if (g_smc_user_page_physical_address == 0) {
if (!(MemoryRegionDram.GetAddress() <= address && address <= MemoryRegionDramHigh.GetEndAddress() - MemoryRegionVirtualSmcUserPage.GetSize())) {
return 0;
}

2
exosphere2/program/source/smc/secmon_smc_aes.cpp
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@ -26,7 +26,7 @@ namespace ams::secmon::smc {
namespace {
constexpr inline auto AesKeySize = se::AesBlockSize;
constexpr inline size_t CmacSizeMax = 4_KB;
constexpr inline size_t CmacSizeMax = 1_KB;
enum SealKey {
SealKey_LoadAesKey = 0,

43
exosphere2/program/source/smc/secmon_smc_handler.cpp
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@ -231,9 +231,48 @@ namespace ams::secmon::smc {
return info.handler(args);
}
constinit std::atomic<int> g_logged = 0;
constexpr int LogMin = 0x100;
constexpr int LogMax = 0x120;
constexpr size_t LogBufSize = 0x5000;
void DebugLog(SmcArguments &args) {
const int current = g_logged.fetch_add(1);
if (current == 0) {
std::memset(MemoryRegionVirtualDebug.GetPointer<void>(), 0xCC, LogBufSize);
}
if (current < LogMin) {
return;
}
const int ind = current - LogMin;
const int ofs = (ind * sizeof(args)) % LogBufSize;
for (size_t i = 0; i < sizeof(args) / sizeof(u32); ++i) {
((volatile u32 *)(MemoryRegionVirtualDebug.GetAddress() + ofs))[i] = reinterpret_cast<u32 *>(std::addressof(args))[i];
}
if (current >= LogMax) {
*(volatile u32 *)(MemoryRegionVirtualDevicePmc.GetAddress() + 0x50) = 0x02;
*(volatile u32 *)(MemoryRegionVirtualDevicePmc.GetAddress() + 0x00) = 0x10;
util::WaitMicroSeconds(1000);
}
}
}
void HandleSmc(int type, SmcArguments &args) {
if (type == HandlerType_User) {
DebugLog(args);
}
/* Get the table. */
const auto &table = GetHandlerTable(static_cast<HandlerType>(type), args.r[0]);
@ -243,6 +282,10 @@ namespace ams::secmon::smc {
/* Set the invocation result. */
args.r[0] = static_cast<u64>(InvokeSmcHandler(info, args));
if (type == HandlerType_User) {
DebugLog(args);
}
/* TODO: For debugging. Remove this when exo2 is complete. */
#if 1
if (args.r[0] == static_cast<u64>(SmcResult::NotImplemented)) {