spl: Implement spl::GetConfig

src/core/hle/service/spl/module.cpp

@@ -10,6 +10,7 @@
 #include <vector>
 #include "common/logging/log.h"
 #include "common/settings.h"
+#include "core/hle/api_version.h"
 #include "core/hle/ipc_helpers.h"
 #include "core/hle/service/spl/csrng.h"
 #include "core/hle/service/spl/module.h"
@@ -24,7 +25,30 @@ Module::Interface::Interface(Core::System& system_, std::shared_ptr<Module> modu
 
 Module::Interface::~Interface() = default;
 
-void Module::Interface::GetConfig(Kernel::HLERequestContext& ctx) {}
+void Module::Interface::GetConfig(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp{ctx};
+    const auto config_item = rp.PopEnum<ConfigItem>();
+
+    // This should call svcCallSecureMonitor with the appropriate args.
+    // Since we do not have it implemented yet, we will use this for now.
+    const auto smc_result = GetConfigImpl(config_item);
+    const auto result_code = smc_result.Code();
+
+    if (smc_result.Failed()) {
+        LOG_ERROR(Service_SPL, "called, config_item={}, result_code={}", config_item,
+                  result_code.raw);
+
+        IPC::ResponseBuilder rb{ctx, 2};
+        rb.Push(result_code);
+    }
+
+    LOG_DEBUG(Service_SPL, "called, config_item={}, result_code={}, smc_result={}", config_item,
+              result_code.raw, *smc_result);
+
+    IPC::ResponseBuilder rb{ctx, 4};
+    rb.Push(result_code);
+    rb.Push(*smc_result);
+}
 
 void Module::Interface::ModularExponentiate(Kernel::HLERequestContext& ctx) {}
 
@@ -51,6 +75,67 @@ void Module::Interface::SetBootReason(Kernel::HLERequestContext& ctx) {}
 
 void Module::Interface::GetBootReason(Kernel::HLERequestContext& ctx) {}
 
+ResultVal<u64> Module::Interface::GetConfigImpl(ConfigItem config_item) const {
+    switch (config_item) {
+    case ConfigItem::DisableProgramVerification:
+    case ConfigItem::DramId:
+    case ConfigItem::SecurityEngineInterruptNumber:
+    case ConfigItem::FuseVersion:
+    case ConfigItem::HardwareType:
+    case ConfigItem::HardwareState:
+    case ConfigItem::IsRecoveryBoot:
+    case ConfigItem::DeviceId:
+    case ConfigItem::BootReason:
+    case ConfigItem::MemoryMode:
+    case ConfigItem::IsDevelopmentFunctionEnabled:
+    case ConfigItem::KernelConfiguration:
+    case ConfigItem::IsChargerHiZModeEnabled:
+    case ConfigItem::QuestState:
+    case ConfigItem::RegulatorType:
+    case ConfigItem::DeviceUniqueKeyGeneration:
+    case ConfigItem::Package2Hash:
+        return ResultSecureMonitorNotImplemented;
+    case ConfigItem::ExosphereApiVersion:
+        // Get information about the current exosphere version.
+        return MakeResult((u64{HLE::ApiVersion::ATMOSPHERE_RELEASE_VERSION_MAJOR} << 56) |
+                          (u64{HLE::ApiVersion::ATMOSPHERE_RELEASE_VERSION_MINOR} << 48) |
+                          (u64{HLE::ApiVersion::ATMOSPHERE_RELEASE_VERSION_MICRO} << 40) |
+                          (static_cast<u64>(HLE::ApiVersion::GetTargetFirmware())));
+    case ConfigItem::ExosphereNeedsReboot:
+        // We are executing, so we aren't in the process of rebooting.
+        return MakeResult(u64{0});
+    case ConfigItem::ExosphereNeedsShutdown:
+        // We are executing, so we aren't in the process of shutting down.
+        return MakeResult(u64{0});
+    case ConfigItem::ExosphereGitCommitHash:
+        // Get information about the current exosphere git commit hash.
+        return MakeResult(u64{0});
+    case ConfigItem::ExosphereHasRcmBugPatch:
+        // Get information about whether this unit has the RCM bug patched.
+        return MakeResult(u64{0});
+    case ConfigItem::ExosphereBlankProdInfo:
+        // Get whether this unit should simulate a "blanked" PRODINFO.
+        return MakeResult(u64{0});
+    case ConfigItem::ExosphereAllowCalWrites:
+        // Get whether this unit should allow writing to the calibration partition.
+        return MakeResult(u64{0});
+    case ConfigItem::ExosphereEmummcType:
+        // Get what kind of emummc this unit has active.
+        return MakeResult(u64{0});
+    case ConfigItem::ExospherePayloadAddress:
+        // Gets the physical address of the reboot payload buffer, if one exists.
+        return ResultSecureMonitorNotInitialized;
+    case ConfigItem::ExosphereLogConfiguration:
+        // Get the log configuration.
+        return MakeResult(u64{0});
+    case ConfigItem::ExosphereForceEnableUsb30:
+        // Get whether usb 3.0 should be force-enabled.
+        return MakeResult(u64{0});
+    default:
+        return ResultSecureMonitorInvalidArgument;
+    }
+}
+
 void InstallInterfaces(SM::ServiceManager& service_manager, Core::System& system) {
     auto module = std::make_shared<Module>();
     std::make_shared<CSRNG>(system, module)->InstallAsService(service_manager);

src/core/hle/service/spl/module.h

@@ -6,6 +6,8 @@
 
 #include <random>
 #include "core/hle/service/service.h"
+#include "core/hle/service/spl/spl_results.h"
+#include "core/hle/service/spl/spl_types.h"
 
 namespace Core {
 class System;
@@ -34,6 +36,8 @@ public:
         std::shared_ptr<Module> module;
 
     private:
+        ResultVal<u64> GetConfigImpl(ConfigItem config_item) const;
+
         std::mt19937 rng;
     };
 };