Core/DiscIO: Add a setting to load the running game into memory via CachedBlobReader.

Source/Core/DolphinQt/Settings/GeneralPane.cpp

@@ -90,6 +90,7 @@ void GeneralPane::OnEmulationStateChanged(Core::State state)
 
   m_checkbox_dualcore->setEnabled(!running);
   m_checkbox_cheats->setEnabled(!running);
+  m_checkbox_load_games_into_memory->setEnabled(!running);
   m_checkbox_override_region_settings->setEnabled(!running);
 #ifdef USE_DISCORD_PRESENCE
   m_checkbox_discord_presence->setEnabled(!running);
@@ -147,6 +148,15 @@ void GeneralPane::CreateBasic()
   m_checkbox_cheats = new ConfigBool(tr("Enable Cheats"), Config::MAIN_ENABLE_CHEATS);
   basic_group_layout->addWidget(m_checkbox_cheats);
 
+  m_checkbox_load_games_into_memory =
+      new ConfigBool(tr("Load Whole Game Into Memory"), Config::MAIN_LOAD_GAME_INTO_MEMORY);
+  basic_group_layout->addWidget(m_checkbox_load_games_into_memory);
+  m_checkbox_load_games_into_memory->SetDescription(
+      tr("Loads the running game into memory in the background."
+         "<br><br>This may improve performance with slow or high-latency storage."
+         "<br>System memory requirements will be much higher with this setting enabled."
+         "<br><br><dolphin_emphasis>If unsure, leave this unchecked.</dolphin_emphasis>"));
+
   m_checkbox_override_region_settings =
       new ConfigBool(tr("Allow Mismatched Region Settings"), Config::MAIN_OVERRIDE_REGION_SETTINGS);
   basic_group_layout->addWidget(m_checkbox_override_region_settings);

Source/Core/DolphinQt/Settings/GeneralPane.h

@@ -48,6 +48,7 @@ private:
   ToolTipComboBox* m_combobox_fallback_region;
   ConfigBool* m_checkbox_dualcore;
   ConfigBool* m_checkbox_cheats;
+  ConfigBool* m_checkbox_load_games_into_memory;
   ConfigBool* m_checkbox_override_region_settings;
   ConfigBool* m_checkbox_auto_disc_change;
 #ifdef USE_DISCORD_PRESENCE