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kern: support 2-pool layout on 2.x-4.x instead of modern 4-pool layout

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This commit is contained in:
Michael Scire 2020-08-25 18:10:58 -07:00 • committed by SciresM
parent ce95af89ef
commit e8ffbe630f
7 changed files with 204 additions and 92 deletions
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60
libraries/libmesosphere/source/svc/kern_svc_process.cpp
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@ -131,15 +131,16 @@ namespace ams::kern::svc {
}
/* Validate the pool partition. */
/* TODO: 4.0.0 UseSecureMemory flag, pre-4.0.0 behavior. */
switch (params.flags & ams::svc::CreateProcessFlag_PoolPartitionMask) {
case ams::svc::CreateProcessFlag_PoolPartitionApplication:
case ams::svc::CreateProcessFlag_PoolPartitionApplet:
case ams::svc::CreateProcessFlag_PoolPartitionSystem:
case ams::svc::CreateProcessFlag_PoolPartitionSystemNonSecure:
break;
default:
return svc::ResultInvalidEnumValue();
if (GetTargetFirmware() >= TargetFirmware_5_0_0) {
switch (params.flags & ams::svc::CreateProcessFlag_PoolPartitionMask) {
case ams::svc::CreateProcessFlag_PoolPartitionApplication:
case ams::svc::CreateProcessFlag_PoolPartitionApplet:
case ams::svc::CreateProcessFlag_PoolPartitionSystem:
case ams::svc::CreateProcessFlag_PoolPartitionSystemNonSecure:
break;
default:
return svc::ResultInvalidEnumValue();
}
}
/* Check that the code address is aligned. */
@ -201,23 +202,30 @@ namespace ams::kern::svc {
KResourceLimit *process_resource_limit = resource_limit.IsNotNull() ? resource_limit.GetPointerUnsafe() : std::addressof(Kernel::GetSystemResourceLimit());
/* Get the pool for the process. */
/* TODO: 4.0.0 UseSecureMemory flag, pre-4.0.0 behavior. */
KMemoryManager::Pool pool;
switch (params.flags & ams::svc::CreateProcessFlag_PoolPartitionMask) {
case ams::svc::CreateProcessFlag_PoolPartitionApplication:
pool = KMemoryManager::Pool_Application;
break;
case ams::svc::CreateProcessFlag_PoolPartitionApplet:
pool = KMemoryManager::Pool_Applet;
break;
case ams::svc::CreateProcessFlag_PoolPartitionSystem:
pool = KMemoryManager::Pool_System;
break;
case ams::svc::CreateProcessFlag_PoolPartitionSystemNonSecure:
default:
pool = KMemoryManager::Pool_SystemNonSecure;
break;
}
const auto pool = [] ALWAYS_INLINE_LAMBDA (u32 flags) -> KMemoryManager::Pool {
if (GetTargetFirmware() >= TargetFirmware_5_0_0) {
switch (flags & ams::svc::CreateProcessFlag_PoolPartitionMask) {
case ams::svc::CreateProcessFlag_PoolPartitionApplication:
return KMemoryManager::Pool_Application;
case ams::svc::CreateProcessFlag_PoolPartitionApplet:
return KMemoryManager::Pool_Applet;
case ams::svc::CreateProcessFlag_PoolPartitionSystem:
return KMemoryManager::Pool_System;
case ams::svc::CreateProcessFlag_PoolPartitionSystemNonSecure:
default:
return KMemoryManager::Pool_SystemNonSecure;
}
} else if (GetTargetFirmware() >= TargetFirmware_4_0_0) {
if ((flags & ams::svc::CreateProcessFlag_DeprecatedUseSecureMemory) != 0) {
return KMemoryManager::Pool_Secure;
} else {
return KMemoryManager::Pool_Unsafe;
}
} else {
return KMemoryManager::Pool_Unsafe;
}
}(params.flags);
/* Initialize the process. */
R_TRY(process->Initialize(params, user_caps, num_caps, process_resource_limit, pool));