diff --git a/externals/boost b/externals/boost
index 19ccdcc6f..f4850c297 160000
--- a/externals/boost
+++ b/externals/boost
@@ -1 +1 @@
-Subproject commit 19ccdcc6fbd026f98ed83dea32ff0398120fbb32
+Subproject commit f4850c2975a0d977b7479664b8d4a6f03300a042
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index b0577f9d9..c0182ed48 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -91,6 +91,7 @@ add_library(common STATIC
     scm_rev.h
     scope_exit.h
     serialization/atomic.h
+    serialization/boost_flat_set.h
     serialization/boost_vector.hpp
     string_util.cpp
     string_util.h
diff --git a/src/common/serialization/boost_flat_set.h b/src/common/serialization/boost_flat_set.h
new file mode 100644
index 000000000..9a0ae77b0
--- /dev/null
+++ b/src/common/serialization/boost_flat_set.h
@@ -0,0 +1,37 @@
+#pragma once
+
+#include "common/common_types.h"
+#include <boost/container/flat_set.hpp>
+#include <boost/serialization/split_free.hpp>
+
+namespace boost::serialization {
+
+template <class Archive, class T>
+void save(Archive& ar, const boost::container::flat_set<T>& set, const unsigned int file_version)
+{
+    ar << static_cast<u64>(set.size());
+    for (auto &v : set) {
+        ar << v;
+    }
+}
+
+template <class Archive, class T>
+void load(Archive& ar, boost::container::flat_set<T>& set, const unsigned int file_version)
+{
+    u64 count{};
+    ar >> count;
+    set.clear();
+    for (auto i = 0; i < count; i++) {
+        T value{};
+        ar >> value;
+        set.insert(value);
+    }
+}
+
+template <class Archive, class T>
+void serialize(Archive& ar, boost::container::flat_set<T>& set, const unsigned int file_version)
+{
+    boost::serialization::split_free(ar, set, file_version);
+}
+
+}
diff --git a/src/common/thread_queue_list.h b/src/common/thread_queue_list.h
index 3e3d04b4d..ce57c01e9 100644
--- a/src/common/thread_queue_list.h
+++ b/src/common/thread_queue_list.h
@@ -6,6 +6,9 @@
 
 #include <array>
 #include <deque>
+#include <boost/serialization/deque.hpp>
+#include <boost/serialization/split_member.hpp>
+#include "common/common_types.h"
 
 namespace Common {
 
@@ -156,6 +159,34 @@ private:
     Queue* first;
     // The priority level queues of thread ids.
     std::array<Queue, NUM_QUEUES> queues;
+
+    friend class boost::serialization::access;
+    template <class Archive>
+    void save(Archive& ar, const unsigned int file_version) const
+    {
+        s32 idx = first == UnlinkedTag() ? -1 : static_cast<s32>(first - &queues[0]);
+        ar << idx;
+        for (auto i = 0; i < NUM_QUEUES; i++) {
+            s32 idx1 = first == UnlinkedTag() ? -1 : static_cast<s32>(queues[i].next_nonempty - &queues[0]);
+            ar << idx1;
+            ar << queues[i].data;
+        }
+    }
+
+    template <class Archive>
+    void load(Archive& ar, const unsigned int file_version)
+    {
+        s32 idx;
+        ar >> idx;
+        first = idx < 0 ? UnlinkedTag() : &queues[idx];
+        for (auto i = 0; i < NUM_QUEUES; i++) {
+            ar >> idx;
+            queues[i].next_nonempty = idx < 0 ? UnlinkedTag() : &queues[idx];
+            ar >> queues[i].data;
+        }
+    }
+
+    BOOST_SERIALIZATION_SPLIT_MEMBER()
 };
 
 } // namespace Common
diff --git a/src/core/arm/arm_interface.h b/src/core/arm/arm_interface.h
index 6e6da8626..483ba4371 100644
--- a/src/core/arm/arm_interface.h
+++ b/src/core/arm/arm_interface.h
@@ -6,6 +6,7 @@
 
 #include <cstddef>
 #include <memory>
+#include <boost/serialization/split_member.hpp>
 #include "common/common_types.h"
 #include "core/arm/skyeye_common/arm_regformat.h"
 #include "core/arm/skyeye_common/vfp/asm_vfp.h"
@@ -16,6 +17,48 @@ public:
     virtual ~ARM_Interface() {}
 
     class ThreadContext {
+        friend class boost::serialization::access;
+
+        template <class Archive>
+        void save(Archive& ar, const unsigned int file_version) const
+        {
+            for (auto i = 0; i < 16; i++) {
+                auto r = GetCpuRegister(i);
+                ar << r;
+            }
+            for (auto i = 0; i < 16; i++) {
+                auto r = GetFpuRegister(i);
+                ar << r;
+            }
+            auto r1 = GetCpsr();
+            ar << r1;
+            auto r2 = GetFpscr();
+            ar << r2;
+            auto r3 = GetFpexc();
+            ar << r3;
+        }
+
+        template <class Archive>
+        void load(Archive& ar, const unsigned int file_version)
+        {
+            u32 r;
+            for (auto i = 0; i < 16; i++) {
+                ar >> r;
+                SetCpuRegister(i, r);
+            }
+            for (auto i = 0; i < 16; i++) {
+                ar >> r;
+                SetFpuRegister(i, r);
+            }
+            ar >> r;
+            SetCpsr(r);
+            ar >> r;
+            SetFpscr(r);
+            ar >> r;
+            SetFpexc(r);
+        }
+
+        BOOST_SERIALIZATION_SPLIT_MEMBER()
     public:
         virtual ~ThreadContext() = default;
 
@@ -143,7 +186,7 @@ public:
      * @param reg The CP15 register to retrieve the value from.
      * @return the value stored in the given CP15 register.
      */
-    virtual u32 GetCP15Register(CP15Register reg) = 0;
+    virtual u32 GetCP15Register(CP15Register reg) const = 0;
 
     /**
      * Stores the given value into the indicated CP15 register.
@@ -172,4 +215,61 @@ public:
 
     /// Prepare core for thread reschedule (if needed to correctly handle state)
     virtual void PrepareReschedule() = 0;
+
+private:
+    friend class boost::serialization::access;
+
+    template <class Archive>
+    void save(Archive& ar, const unsigned int file_version) const
+    {
+        for (auto i = 0; i < 15; i++) {
+            auto r = GetReg(i);
+            ar << r;
+        }
+        auto pc = GetPC();
+        ar << pc;
+        auto cpsr = GetCPSR();
+        ar << cpsr;
+        for (auto i = 0; i < 32; i++) {
+            auto r = GetVFPReg(i);
+            ar << r;
+        }
+        for (auto i = 0; i < VFPSystemRegister::VFP_SYSTEM_REGISTER_COUNT; i++) {
+            auto r = GetVFPSystemReg(static_cast<VFPSystemRegister>(i));
+            ar << r;
+        }
+        for (auto i = 0; i < CP15Register::CP15_REGISTER_COUNT; i++) {
+            auto r = GetCP15Register(static_cast<CP15Register>(i));
+            ar << r;
+        }
+    }
+
+    template <class Archive>
+    void load(Archive& ar, const unsigned int file_version)
+    {
+        u32 r;
+        for (auto i = 0; i < 15; i++) {
+            ar >> r;
+            SetReg(i, r);
+        }
+        ar >> r;
+        SetPC(r);
+        ar >> r;
+        SetCPSR(r);
+        for (auto i = 0; i < 32; i++) {
+            ar >> r;
+            SetVFPReg(i, r);
+        }
+        for (auto i = 0; i < VFPSystemRegister::VFP_SYSTEM_REGISTER_COUNT; i++) {
+            ar >> r;
+            SetVFPSystemReg(static_cast<VFPSystemRegister>(i), r);
+        }
+        for (auto i = 0; i < CP15Register::CP15_REGISTER_COUNT; i++) {
+            ar >> r;
+            SetCP15Register(static_cast<CP15Register>(i), r);
+        }
+        // TODO: Clear caches etc?
+    }
+
+    BOOST_SERIALIZATION_SPLIT_MEMBER()
 };
diff --git a/src/core/arm/dynarmic/arm_dynarmic.cpp b/src/core/arm/dynarmic/arm_dynarmic.cpp
index f494b5228..a422db6af 100644
--- a/src/core/arm/dynarmic/arm_dynarmic.cpp
+++ b/src/core/arm/dynarmic/arm_dynarmic.cpp
@@ -235,7 +235,7 @@ void ARM_Dynarmic::SetCPSR(u32 cpsr) {
     jit->SetCpsr(cpsr);
 }
 
-u32 ARM_Dynarmic::GetCP15Register(CP15Register reg) {
+u32 ARM_Dynarmic::GetCP15Register(CP15Register reg) const {
     return interpreter_state->CP15[reg];
 }
 
diff --git a/src/core/arm/dynarmic/arm_dynarmic.h b/src/core/arm/dynarmic/arm_dynarmic.h
index 559dbf5a8..ff9a104b5 100644
--- a/src/core/arm/dynarmic/arm_dynarmic.h
+++ b/src/core/arm/dynarmic/arm_dynarmic.h
@@ -40,7 +40,7 @@ public:
     void SetVFPSystemReg(VFPSystemRegister reg, u32 value) override;
     u32 GetCPSR() const override;
     void SetCPSR(u32 cpsr) override;
-    u32 GetCP15Register(CP15Register reg) override;
+    u32 GetCP15Register(CP15Register reg) const override;
     void SetCP15Register(CP15Register reg, u32 value) override;
 
     std::unique_ptr<ThreadContext> NewContext() const override;
diff --git a/src/core/arm/dyncom/arm_dyncom.cpp b/src/core/arm/dyncom/arm_dyncom.cpp
index d54b0cb95..6b67644e7 100644
--- a/src/core/arm/dyncom/arm_dyncom.cpp
+++ b/src/core/arm/dyncom/arm_dyncom.cpp
@@ -138,7 +138,7 @@ void ARM_DynCom::SetCPSR(u32 cpsr) {
     state->Cpsr = cpsr;
 }
 
-u32 ARM_DynCom::GetCP15Register(CP15Register reg) {
+u32 ARM_DynCom::GetCP15Register(CP15Register reg) const {
     return state->CP15[reg];
 }
 
diff --git a/src/core/arm/dyncom/arm_dyncom.h b/src/core/arm/dyncom/arm_dyncom.h
index 99c6ab460..7497b765f 100644
--- a/src/core/arm/dyncom/arm_dyncom.h
+++ b/src/core/arm/dyncom/arm_dyncom.h
@@ -41,7 +41,7 @@ public:
     void SetVFPSystemReg(VFPSystemRegister reg, u32 value) override;
     u32 GetCPSR() const override;
     void SetCPSR(u32 cpsr) override;
-    u32 GetCP15Register(CP15Register reg) override;
+    u32 GetCP15Register(CP15Register reg) const override;
     void SetCP15Register(CP15Register reg, u32 value) override;
 
     std::unique_ptr<ThreadContext> NewContext() const override;
diff --git a/src/core/hle/kernel/config_mem.h b/src/core/hle/kernel/config_mem.h
index ecb97c6bd..26fc0bccb 100644
--- a/src/core/hle/kernel/config_mem.h
+++ b/src/core/hle/kernel/config_mem.h
@@ -9,6 +9,7 @@
 // bootrom. Because we're not emulating this, and essentially just "stubbing" the functionality, I'm
 // putting this as a subset of HLE for now.
 
+#include <boost/serialization/binary_object.hpp>
 #include "common/common_funcs.h"
 #include "common/common_types.h"
 #include "common/swap.h"
@@ -56,6 +57,14 @@ public:
 
 private:
     ConfigMemDef config_mem;
+
+    friend class boost::serialization::access;
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int file_version)
+    {
+        auto o_config_mem = boost::serialization::binary_object(&config_mem, sizeof(config_mem));
+        ar & o_config_mem;
+    }
 };
 
 } // namespace ConfigMem
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index d8bd0f034..32d76d0d3 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -109,17 +109,17 @@ template <class Archive>
 void KernelSystem::serialize(Archive& ar, const unsigned int file_version)
 {
     ar & named_ports;
-    // TODO: CPU
+    ar & *current_cpu.get();
     // NB: subsystem references and prepare_reschedule_callback are constant
     ar & *resource_limits.get();
     ar & next_object_id;
-    //ar & *timer_manager.get();
+    ar & *timer_manager.get();
     ar & next_process_id;
     ar & process_list;
     ar & current_process;
-    // ar & *thread_manager.get();
-    //ar & *config_mem_handler.get();
-    //ar & *shared_page_handler.get();
+    ar & *thread_manager.get();
+    ar & *config_mem_handler.get();
+    ar & *shared_page_handler.get();
 }
 
 SERIALIZE_IMPL(KernelSystem)
diff --git a/src/core/hle/kernel/mutex.cpp b/src/core/hle/kernel/mutex.cpp
index 467b1ae1e..b9a32ef23 100644
--- a/src/core/hle/kernel/mutex.cpp
+++ b/src/core/hle/kernel/mutex.cpp
@@ -23,11 +23,12 @@ void ReleaseThreadMutexes(Thread* thread) {
     thread->held_mutexes.clear();
 }
 
-Mutex::Mutex(KernelSystem& kernel) : WaitObject(kernel), kernel(kernel) {}
+Mutex::Mutex() : kernel(*g_kernel) {}
 Mutex::~Mutex() {}
 
 std::shared_ptr<Mutex> KernelSystem::CreateMutex(bool initial_locked, std::string name) {
-    auto mutex{std::make_shared<Mutex>(*this)};
+    auto mutex{std::make_shared<Mutex>()};
+    mutex->Init(*this);
 
     mutex->lock_count = 0;
     mutex->name = std::move(name);
diff --git a/src/core/hle/kernel/mutex.h b/src/core/hle/kernel/mutex.h
index 618685451..4f0c2c2b5 100644
--- a/src/core/hle/kernel/mutex.h
+++ b/src/core/hle/kernel/mutex.h
@@ -17,7 +17,7 @@ class Thread;
 
 class Mutex final : public WaitObject {
 public:
-    explicit Mutex(KernelSystem& kernel);
+    explicit Mutex();
     ~Mutex() override;
 
     std::string GetTypeName() const override {
@@ -68,7 +68,6 @@ private:
         ar & priority;
         ar & name;
         ar & holding_thread;
-        ar & kernel; // TODO: Check that this works!
     }
 };
 
diff --git a/src/core/hle/kernel/process.cpp b/src/core/hle/kernel/process.cpp
index 63a5c3b68..49de1e69e 100644
--- a/src/core/hle/kernel/process.cpp
+++ b/src/core/hle/kernel/process.cpp
@@ -4,9 +4,13 @@
 
 #include <algorithm>
 #include <memory>
+#include <boost/serialization/array.hpp>
+#include <boost/serialization/bitset.hpp>
+#include "common/archives.h"
 #include "common/assert.h"
 #include "common/common_funcs.h"
 #include "common/logging/log.h"
+#include "common/serialization/boost_vector.hpp"
 #include "core/hle/kernel/errors.h"
 #include "core/hle/kernel/memory.h"
 #include "core/hle/kernel/process.h"
@@ -17,6 +21,28 @@
 
 namespace Kernel {
 
+template <class Archive>
+void Process::serialize(Archive& ar, const unsigned int file_version)
+{
+    ar & boost::serialization::base_object<Object>(*this);
+    ar & handle_table;
+    ar & codeset;
+    ar & resource_limit;
+    ar & svc_access_mask;
+    ar & handle_table_size;
+    ar & (boost::container::vector<AddressMapping, boost::container::dtl::static_storage_allocator<AddressMapping, 8> >&)address_mappings;
+    ar & flags.raw;
+    ar & kernel_version;
+    ar & ideal_processor;
+    ar & process_id;
+    ar & vm_manager;
+    ar & memory_used;
+    ar & memory_region;
+    ar & tls_slots;
+}
+
+SERIALIZE_IMPL(Process)
+
 std::shared_ptr<CodeSet> KernelSystem::CreateCodeSet(std::string name, u64 program_id) {
     auto codeset{std::make_shared<CodeSet>()};
     codeset->Init(*this);
diff --git a/src/core/hle/kernel/process.h b/src/core/hle/kernel/process.h
index 6defd42c6..edda20c1f 100644
--- a/src/core/hle/kernel/process.h
+++ b/src/core/hle/kernel/process.h
@@ -11,13 +11,10 @@
 #include <string>
 #include <vector>
 #include <boost/container/static_vector.hpp>
-#include <boost/serialization/array.hpp>
-#include <boost/serialization/bitset.hpp>
-#include <boost/serialization/base_object.hpp>
 #include <boost/serialization/vector.hpp>
+#include <boost/serialization/base_object.hpp>
 #include "common/bit_field.h"
 #include "common/common_types.h"
-#include "common/serialization/boost_vector.hpp"
 #include "core/hle/kernel/handle_table.h"
 #include "core/hle/kernel/object.h"
 #include "core/hle/kernel/vm_manager.h"
@@ -234,23 +231,6 @@ private:
 
     friend class boost::serialization::access;
     template <class Archive>
-    void serialize(Archive& ar, const unsigned int file_version)
-    {
-        ar & boost::serialization::base_object<Object>(*this);
-        ar & handle_table;
-        ar & codeset;
-        ar & resource_limit;
-        ar & svc_access_mask;
-        ar & handle_table_size;
-        ar & (boost::container::vector<AddressMapping, boost::container::dtl::static_storage_allocator<AddressMapping, 8> >&)address_mappings;
-        ar & flags.raw;
-        ar & kernel_version;
-        ar & ideal_processor;
-        ar & process_id;
-        ar & vm_manager;
-        ar & memory_used;
-        ar & memory_region;
-        ar & tls_slots;
-    }
+    void serialize(Archive& ar, const unsigned int file_version);
 };
 } // namespace Kernel
diff --git a/src/core/hle/kernel/shared_page.h b/src/core/hle/kernel/shared_page.h
index 5092b4869..58cd46334 100644
--- a/src/core/hle/kernel/shared_page.h
+++ b/src/core/hle/kernel/shared_page.h
@@ -13,6 +13,7 @@
 #include <chrono>
 #include <ctime>
 #include <memory>
+#include <boost/serialization/binary_object.hpp>
 #include "common/bit_field.h"
 #include "common/common_funcs.h"
 #include "common/common_types.h"
@@ -104,6 +105,14 @@ private:
     std::chrono::seconds init_time;
 
     SharedPageDef shared_page;
+
+    friend class boost::serialization::access;
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int file_version)
+    {
+        auto o_shared_page = boost::serialization::binary_object(&shared_page, sizeof(shared_page));
+        ar & o_shared_page;
+    }
 };
 
 } // namespace SharedPage
diff --git a/src/core/hle/kernel/thread.cpp b/src/core/hle/kernel/thread.cpp
index 4c2344dcb..9fa5df33a 100644
--- a/src/core/hle/kernel/thread.cpp
+++ b/src/core/hle/kernel/thread.cpp
@@ -6,10 +6,12 @@
 #include <list>
 #include <unordered_map>
 #include <vector>
+#include "common/archives.h"
 #include "common/assert.h"
 #include "common/common_types.h"
 #include "common/logging/log.h"
 #include "common/math_util.h"
+#include "common/serialization/boost_flat_set.h"
 #include "core/arm/arm_interface.h"
 #include "core/arm/skyeye_common/armstate.h"
 #include "core/core.h"
@@ -25,6 +27,30 @@
 
 namespace Kernel {
 
+template <class Archive>
+void Thread::serialize(Archive& ar, const unsigned int file_version)
+{
+    ar & *context.get();
+    ar & thread_id;
+    ar & status;
+    ar & entry_point;
+    ar & stack_top;
+    ar & nominal_priority;
+    ar & current_priority;
+    ar & last_running_ticks;
+    ar & processor_id;
+    ar & tls_address;
+    ar & held_mutexes;
+    ar & pending_mutexes;
+    ar & owner_process;
+    ar & wait_objects;
+    ar & wait_address;
+    ar & name;
+    // TODO: How the hell to do wakeup_callback
+}
+
+SERIALIZE_IMPL(Thread)
+
 bool Thread::ShouldWait(const Thread* thread) const {
     return status != ThreadStatus::Dead;
 }
diff --git a/src/core/hle/kernel/thread.h b/src/core/hle/kernel/thread.h
index 2db5dda91..fc9170675 100644
--- a/src/core/hle/kernel/thread.h
+++ b/src/core/hle/kernel/thread.h
@@ -9,6 +9,9 @@
 #include <unordered_map>
 #include <vector>
 #include <boost/container/flat_set.hpp>
+#include <boost/serialization/shared_ptr.hpp>
+#include <boost/serialization/unordered_map.hpp>
+#include <boost/serialization/vector.hpp>
 #include "common/common_types.h"
 #include "common/thread_queue_list.h"
 #include "core/arm/arm_interface.h"
@@ -145,6 +148,17 @@ private:
 
     friend class Thread;
     friend class KernelSystem;
+
+    friend class boost::serialization::access;
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int file_version)
+    {
+        ar & next_thread_id;
+        ar & current_thread;
+        ar & ready_queue;
+        ar & wakeup_callback_table;
+        ar & thread_list;
+    }
 };
 
 class Thread final : public WaitObject {
@@ -305,6 +319,10 @@ public:
 
 private:
     ThreadManager& thread_manager;
+
+    friend class boost::serialization::access;
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int file_version);
 };
 
 /**
diff --git a/src/core/hle/kernel/timer.cpp b/src/core/hle/kernel/timer.cpp
index 9c3d0f725..f073c3312 100644
--- a/src/core/hle/kernel/timer.cpp
+++ b/src/core/hle/kernel/timer.cpp
@@ -14,15 +14,15 @@
 
 namespace Kernel {
 
-Timer::Timer(KernelSystem& kernel)
-    : WaitObject(kernel), kernel(kernel), timer_manager(kernel.GetTimerManager()) {}
+Timer::Timer() : kernel(*g_kernel), timer_manager(g_kernel->GetTimerManager()) {}
 Timer::~Timer() {
     Cancel();
     timer_manager.timer_callback_table.erase(callback_id);
 }
 
 std::shared_ptr<Timer> KernelSystem::CreateTimer(ResetType reset_type, std::string name) {
-    auto timer{std::make_shared<Timer>(*this)};
+    auto timer{std::make_shared<Timer>()};
+    timer->Init(*this);
 
     timer->reset_type = reset_type;
     timer->signaled = false;
diff --git a/src/core/hle/kernel/timer.h b/src/core/hle/kernel/timer.h
index 6865f5243..690350611 100644
--- a/src/core/hle/kernel/timer.h
+++ b/src/core/hle/kernel/timer.h
@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <boost/serialization/unordered_map.hpp>
 #include "common/common_types.h"
 #include "core/core_timing.h"
 #include "core/hle/kernel/object.h"
@@ -33,11 +34,19 @@ private:
 
     friend class Timer;
     friend class KernelSystem;
+
+    friend class boost::serialization::access;
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int file_version)
+    {
+        ar & next_timer_callback_id;
+        ar & timer_callback_table;
+    }
 };
 
 class Timer final : public WaitObject {
 public:
-    explicit Timer(KernelSystem& kernel);
+    explicit Timer();
     ~Timer() override;
 
     std::string GetTypeName() const override {
@@ -103,6 +112,18 @@ private:
     TimerManager& timer_manager;
 
     friend class KernelSystem;
+
+    friend class boost::serialization::access;
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int file_version)
+    {
+        ar & reset_type;
+        ar & initial_delay;
+        ar & interval_delay;
+        ar & signaled;
+        ar & name;
+        ar & callback_id;
+    }
 };
 
 } // namespace Kernel