diff --git a/TODO b/TODO
index 3f15f3fb5..840caba1b 100644
--- a/TODO
+++ b/TODO
@@ -11,7 +11,7 @@
     ✔ GPU regs @done(19-08-13 15:41)
     ✔ LCD regs @done(19-08-13 15:41)
 ☐ Video core @started(19-08-13 16:43)
-    ☐ Geometry pipeline
+    ✔ Geometry pipeline @done(19-12-22 15:52)
     ✔ PICA state @done(19-08-13 15:41)
     ☐ Primitive assembly
     ✔ Shader @done(19-08-13 16:03)
@@ -35,9 +35,11 @@
         ✔ Server session @done(19-08-13 16:44)
         ✔ Session @done(19-08-13 16:44)
         ☐ Shared memory
-        ☐ Shared page @started(19-08-13 16:44)
+        ✘ Shared page @started(19-08-13 16:44) @cancelled(19-12-22 11:19)
+            Not needed right now as shared_page is read-only and derived from other data
         ☐ SVC
         ☐ Thread @started(19-08-13 16:45)
+            This requires refactoring wakeup_callback to be an object ref
         ✔ Timer @done(19-08-13 16:45)
         ☐ VM Manager @started(19-08-13 16:46)
         ✔ Wait object @done(19-08-13 16:46)
diff --git a/externals/boost b/externals/boost
index f4850c297..55725b779 160000
--- a/externals/boost
+++ b/externals/boost
@@ -1 +1 @@
-Subproject commit f4850c2975a0d977b7479664b8d4a6f03300a042
+Subproject commit 55725b7796c7faa0a4af869e412d0410bd47612d
diff --git a/src/core/hle/kernel/kernel.cpp b/src/core/hle/kernel/kernel.cpp
index 32d76d0d3..2dd0a34bf 100644
--- a/src/core/hle/kernel/kernel.cpp
+++ b/src/core/hle/kernel/kernel.cpp
@@ -119,7 +119,8 @@ void KernelSystem::serialize(Archive& ar, const unsigned int file_version)
     ar & current_process;
     ar & *thread_manager.get();
     ar & *config_mem_handler.get();
-    ar & *shared_page_handler.get();
+    // Shared page data is read-only at the moment, so doesn't need serializing
+    //ar & *shared_page_handler.get();
 }
 
 SERIALIZE_IMPL(KernelSystem)
diff --git a/src/video_core/geometry_pipeline.cpp b/src/video_core/geometry_pipeline.cpp
index 3a24b71c9..44a2fd6da 100644
--- a/src/video_core/geometry_pipeline.cpp
+++ b/src/video_core/geometry_pipeline.cpp
@@ -2,6 +2,10 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <boost/serialization/base_object.hpp>
+#include <boost/serialization/export.hpp>
+#include <boost/serialization/unique_ptr.hpp>
+#include "common/archives.h"
 #include "video_core/geometry_pipeline.h"
 #include "video_core/pica_state.h"
 #include "video_core/regs.h"
@@ -30,6 +34,13 @@ public:
      * @return if the buffer is full and the geometry shader should be invoked
      */
     virtual bool SubmitVertex(const Shader::AttributeBuffer& input) = 0;
+
+private:
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int file_version)
+    {
+    }
+    friend class boost::serialization::access;
 };
 
 // In the Point mode, vertex attributes are sent to the input registers in the geometry shader unit.
@@ -40,7 +51,7 @@ public:
 // TODO: what happens when the input size is not divisible by the output size?
 class GeometryPipeline_Point : public GeometryPipelineBackend {
 public:
-    GeometryPipeline_Point(const Regs& regs, Shader::GSUnitState& unit) : regs(regs), unit(unit) {
+    GeometryPipeline_Point() : regs(g_state.regs), unit(g_state.gs_unit) {
         ASSERT(regs.pipeline.variable_primitive == 0);
         ASSERT(regs.gs.input_to_uniform == 0);
         vs_output_num = regs.pipeline.vs_outmap_total_minus_1_a + 1;
@@ -79,6 +90,39 @@ private:
     Common::Vec4<float24>* buffer_cur;
     Common::Vec4<float24>* buffer_end;
     unsigned int vs_output_num;
+
+    template <typename Class, class Archive>
+    static void serialize_common(Class* self, Archive& ar, const unsigned int version)
+    {
+        ar & boost::serialization::base_object<GeometryPipelineBackend>(*self);
+        ar & self->attribute_buffer;
+        ar & self->vs_output_num;
+    }
+
+    template<class Archive>
+    void save(Archive & ar, const unsigned int version) const
+    {
+        serialize_common(this, ar, version);
+        auto buffer_idx = static_cast<u32>(buffer_cur - attribute_buffer.attr);
+        auto buffer_size = static_cast<u32>(buffer_end - attribute_buffer.attr);
+        ar << buffer_idx;
+        ar << buffer_size;
+    }
+
+    template<class Archive>
+    void load(Archive & ar, const unsigned int version)
+    {
+        serialize_common(this, ar, version);
+        u32 buffer_idx, buffer_size;
+        ar >> buffer_idx;
+        ar >> buffer_size;
+        buffer_cur = attribute_buffer.attr + buffer_idx;
+        buffer_end = attribute_buffer.attr + buffer_size;
+    }
+
+    BOOST_SERIALIZATION_SPLIT_MEMBER()
+
+    friend class boost::serialization::access;
 };
 
 // In VariablePrimitive mode, vertex attributes are buffered into the uniform registers in the
@@ -86,8 +130,8 @@ private:
 // value in the batch. This mode is usually used for subdivision.
 class GeometryPipeline_VariablePrimitive : public GeometryPipelineBackend {
 public:
-    GeometryPipeline_VariablePrimitive(const Regs& regs, Shader::ShaderSetup& setup)
-        : regs(regs), setup(setup) {
+    GeometryPipeline_VariablePrimitive()
+        : regs(g_state.regs), setup(g_state.gs) {
         ASSERT(regs.pipeline.variable_primitive == 1);
         ASSERT(regs.gs.input_to_uniform == 1);
         vs_output_num = regs.pipeline.vs_outmap_total_minus_1_a + 1;
@@ -144,6 +188,37 @@ private:
     unsigned int total_vertex_num;
     Common::Vec4<float24>* buffer_cur;
     unsigned int vs_output_num;
+
+    template <typename Class, class Archive>
+    static void serialize_common(Class* self, Archive& ar, const unsigned int version)
+    {
+        ar & boost::serialization::base_object<GeometryPipelineBackend>(*self);
+        ar & self->need_index;
+        ar & self->main_vertex_num;
+        ar & self->total_vertex_num;
+        ar & self->vs_output_num;
+    }
+
+    template<class Archive>
+    void save(Archive & ar, const unsigned int version) const
+    {
+        serialize_common(this, ar, version);
+        auto buffer_idx = static_cast<u32>(buffer_cur - setup.uniforms.f);
+        ar << buffer_idx;
+    }
+
+    template<class Archive>
+    void load(Archive & ar, const unsigned int version)
+    {
+        serialize_common(this, ar, version);
+        u32 buffer_idx;
+        ar >> buffer_idx;
+        buffer_cur = setup.uniforms.f + buffer_idx;
+    }
+
+    BOOST_SERIALIZATION_SPLIT_MEMBER()
+
+    friend class boost::serialization::access;
 };
 
 // In FixedPrimitive mode, vertex attributes are buffered into the uniform registers in the geometry
@@ -151,8 +226,8 @@ private:
 // particle system.
 class GeometryPipeline_FixedPrimitive : public GeometryPipelineBackend {
 public:
-    GeometryPipeline_FixedPrimitive(const Regs& regs, Shader::ShaderSetup& setup)
-        : regs(regs), setup(setup) {
+    GeometryPipeline_FixedPrimitive()
+        : regs(g_state.regs), setup(g_state.gs) {
         ASSERT(regs.pipeline.variable_primitive == 0);
         ASSERT(regs.gs.input_to_uniform == 1);
         vs_output_num = regs.pipeline.vs_outmap_total_minus_1_a + 1;
@@ -190,6 +265,42 @@ private:
     Common::Vec4<float24>* buffer_cur;
     Common::Vec4<float24>* buffer_end;
     unsigned int vs_output_num;
+
+    template <typename Class, class Archive>
+    static void serialize_common(Class* self, Archive& ar, const unsigned int version)
+    {
+        ar & boost::serialization::base_object<GeometryPipelineBackend>(*self);
+        ar & self->vs_output_num;
+    }
+
+    template<class Archive>
+    void save(Archive & ar, const unsigned int version) const
+    {
+        serialize_common(this, ar, version);
+        auto buffer_offset = static_cast<u32>(buffer_begin - setup.uniforms.f);
+        auto buffer_idx = static_cast<u32>(buffer_cur - setup.uniforms.f);
+        auto buffer_size = static_cast<u32>(buffer_end - setup.uniforms.f);
+        ar << buffer_offset;
+        ar << buffer_idx;
+        ar << buffer_size;
+    }
+
+    template<class Archive>
+    void load(Archive & ar, const unsigned int version)
+    {
+        serialize_common(this, ar, version);
+        u32 buffer_offset, buffer_idx, buffer_size;
+        ar >> buffer_offset;
+        ar >> buffer_idx;
+        ar >> buffer_size;
+        buffer_begin = setup.uniforms.f + buffer_offset;
+        buffer_cur = setup.uniforms.f + buffer_idx;
+        buffer_end = setup.uniforms.f + buffer_size;
+    }
+
+    BOOST_SERIALIZATION_SPLIT_MEMBER()
+
+    friend class boost::serialization::access;
 };
 
 GeometryPipeline::GeometryPipeline(State& state) : state(state) {}
@@ -231,13 +342,13 @@ void GeometryPipeline::Reconfigure() {
 
     switch (state.regs.pipeline.gs_config.mode) {
     case PipelineRegs::GSMode::Point:
-        backend = std::make_unique<GeometryPipeline_Point>(state.regs, state.gs_unit);
+        backend = std::make_unique<GeometryPipeline_Point>();
         break;
     case PipelineRegs::GSMode::VariablePrimitive:
-        backend = std::make_unique<GeometryPipeline_VariablePrimitive>(state.regs, state.gs);
+        backend = std::make_unique<GeometryPipeline_VariablePrimitive>();
         break;
     case PipelineRegs::GSMode::FixedPrimitive:
-        backend = std::make_unique<GeometryPipeline_FixedPrimitive>(state.regs, state.gs);
+        backend = std::make_unique<GeometryPipeline_FixedPrimitive>();
         break;
     default:
         UNREACHABLE();
@@ -271,4 +382,16 @@ void GeometryPipeline::SubmitVertex(const Shader::AttributeBuffer& input) {
     }
 }
 
+template <class Archive>
+void GeometryPipeline::serialize(Archive& ar, const unsigned int version) {
+    // vertex_handler and shader_engine are always set to the same value
+    ar & backend;
+}
+
 } // namespace Pica
+
+BOOST_SERIALIZATION_ASSUME_ABSTRACT(Pica::GeometryPipelineBackend)
+SERIALIZE_EXPORT_IMPL(Pica::GeometryPipeline_Point)
+SERIALIZE_EXPORT_IMPL(Pica::GeometryPipeline_VariablePrimitive)
+SERIALIZE_EXPORT_IMPL(Pica::GeometryPipeline_FixedPrimitive)
+SERIALIZE_IMPL(Pica::GeometryPipeline)
diff --git a/src/video_core/geometry_pipeline.h b/src/video_core/geometry_pipeline.h
index 91fdd3192..1ca2d00c4 100644
--- a/src/video_core/geometry_pipeline.h
+++ b/src/video_core/geometry_pipeline.h
@@ -45,5 +45,10 @@ private:
     Shader::ShaderEngine* shader_engine;
     std::unique_ptr<GeometryPipelineBackend> backend;
     State& state;
+
+    template <class Archive>
+    void serialize(Archive& ar, const unsigned int version);
+
+    friend class boost::serialization::access;
 };
 } // namespace Pica
diff --git a/src/video_core/pica_state.h b/src/video_core/pica_state.h
index ba9f8235e..d7ae04c1b 100644
--- a/src/video_core/pica_state.h
+++ b/src/video_core/pica_state.h
@@ -227,7 +227,7 @@ private:
         ar & cmd_list.length;
         ar & immediate;
         ar & gs_unit;
-        // ar & geometry_pipeline;
+        ar & geometry_pipeline;
         // ar & primitive_assembler;
         ar & vs_float_regs_counter;
         ar & vs_uniform_write_buffer;