diff --git a/rpcs3/Emu/ARMv7/ARMv7Decoder.cpp b/rpcs3/Emu/ARMv7/ARMv7Decoder.cpp
index 70ccd9f240..0b62114b2b 100644
--- a/rpcs3/Emu/ARMv7/ARMv7Decoder.cpp
+++ b/rpcs3/Emu/ARMv7/ARMv7Decoder.cpp
@@ -1281,7 +1281,7 @@ void armv7_decoder_initialize(u32 addr, u32 end_addr, bool dump)
 			const u32 i2 = (code.data >> 11) & 0x1 ^ s ^ 1;
 			const u32 target = (addr + 4 & ~3) + sign<25, u32>(s << 24 | i2 << 23 | i1 << 22 | (code.data & 0x3ff0000) >> 4 | (code.data & 0x7ff) << 1);
 
-			const u32 instr = Memory.IsGoodAddr(target, 4) ? vm::psv::read32(target) : 0;
+			const u32 instr = vm::check_addr(target, 4) ? vm::psv::read32(target) : 0;
 
 			// possibly a call to imported function:
 			if (target >= end_addr && ((target - end_addr) % 16) == 0 && (instr & 0xfff000f0) == 0xe0700090)
diff --git a/rpcs3/Emu/ARMv7/ARMv7Thread.cpp b/rpcs3/Emu/ARMv7/ARMv7Thread.cpp
index 0a57e4abcf..2e4d6c4ecb 100644
--- a/rpcs3/Emu/ARMv7/ARMv7Thread.cpp
+++ b/rpcs3/Emu/ARMv7/ARMv7Thread.cpp
@@ -39,7 +39,7 @@ std::array<std::atomic<u32>, TLS_MAX> g_armv7_tls_owners;
 
 void armv7_init_tls()
 {
-	g_armv7_tls_start = Emu.GetTLSMemsz() ? vm::cast(Memory.PSV.RAM.AllocAlign(Emu.GetTLSMemsz() * TLS_MAX, 4096)) : 0;
+	g_armv7_tls_start = Emu.GetTLSMemsz() ? Memory.PSV.RAM.AllocAlign(Emu.GetTLSMemsz() * TLS_MAX, 4096) : 0;
 
 	for (auto& v : g_armv7_tls_owners)
 	{
@@ -126,7 +126,7 @@ void ARMv7Thread::InitStack()
 	if (!m_stack_addr)
 	{
 		assert(m_stack_size);
-		m_stack_addr = vm::cast(Memory.Alloc(m_stack_size, 4096));
+		m_stack_addr = Memory.Alloc(m_stack_size, 4096);
 	}
 }
 
@@ -269,7 +269,7 @@ cpu_thread& armv7_thread::args(std::initializer_list<std::string> values)
 		argc++;
 	}
 
-	argv = vm::cast(Memory.PSV.RAM.AllocAlign(argv_size, 4096)); // allocate arg list
+	argv = Memory.PSV.RAM.AllocAlign(argv_size, 4096); // allocate arg list
 	memcpy(vm::get_ptr(argv), argv_data.data(), argv_size); // copy arg list
 	
 	return *this;
diff --git a/rpcs3/Emu/Cell/PPUThread.cpp b/rpcs3/Emu/Cell/PPUThread.cpp
index e6d229583a..63ccda64d6 100644
--- a/rpcs3/Emu/Cell/PPUThread.cpp
+++ b/rpcs3/Emu/Cell/PPUThread.cpp
@@ -85,7 +85,7 @@ void PPUThread::InitStack()
 	if (!m_stack_addr)
 	{
 		assert(m_stack_size);
-		m_stack_addr = vm::cast(Memory.StackMem.AllocAlign(m_stack_size, 4096));
+		m_stack_addr = Memory.StackMem.AllocAlign(m_stack_size, 4096);
 	}
 }
 
diff --git a/rpcs3/Emu/Memory/Memory.cpp b/rpcs3/Emu/Memory/Memory.cpp
index 00eee9da85..f5904b2c28 100644
--- a/rpcs3/Emu/Memory/Memory.cpp
+++ b/rpcs3/Emu/Memory/Memory.cpp
@@ -4,55 +4,8 @@
 #include "Memory.h"
 #include "Emu/Cell/RawSPUThread.h"
 
-#ifndef _WIN32
-#include <sys/mman.h>
-
-/* OS X uses MAP_ANON instead of MAP_ANONYMOUS */
-#ifndef MAP_ANONYMOUS
-#define MAP_ANONYMOUS MAP_ANON
-#endif
-#else
-#include <Windows.h>
-#endif
-
 MemoryBase Memory;
 
-void MemoryBase::RegisterPages(u32 addr, u32 size)
-{
-	assert(size && (size | addr) % 4096 == 0);
-
-	LV2_LOCK(0);
-
-	//LOG_NOTICE(MEMORY, "RegisterPages(addr=0x%x, size=0x%x)", addr, size);
-	for (u32 i = addr / 4096; i < addr / 4096 + size / 4096; i++)
-	{
-		if (m_pages[i])
-		{
-			LOG_ERROR(MEMORY, "Page already registered (addr=0x%x)", i * 4096);
-			Emu.Pause();
-		}
-		m_pages[i] = 1; // TODO: define page parameters
-	}
-}
-
-void MemoryBase::UnregisterPages(u32 addr, u32 size)
-{
-	assert(size && (size | addr) % 4096 == 0);
-
-	LV2_LOCK(0);
-
-	//LOG_NOTICE(MEMORY, "UnregisterPages(addr=0x%x, size=0x%x)", addr, size);
-	for (u32 i = addr / 4096; i < addr / 4096 + size / 4096; i++)
-	{
-		if (!m_pages[i])
-		{
-			LOG_ERROR(MEMORY, "Page not registered (addr=0x%x)", i * 4096);
-			Emu.Pause();
-		}
-		m_pages[i] = 0; // TODO: define page parameters
-	}
-}
-
 u32 MemoryBase::InitRawSPU(MemoryBlock* raw_spu)
 {
 	LV2_LOCK(0);
@@ -93,7 +46,6 @@ void MemoryBase::Init(MemoryType type)
 	if (m_inited) return;
 	m_inited = true;
 
-	memset(m_pages, 0, sizeof(m_pages));
 	memset(RawSPUMem, 0, sizeof(RawSPUMem));
 
 	LOG_NOTICE(MEMORY, "Initializing memory: base_addr = 0x%llx, priv_addr = 0x%llx", (u64)vm::g_base_addr, (u64)vm::g_priv_addr);
@@ -111,11 +63,8 @@ void MemoryBase::Init(MemoryType type)
 	switch (type)
 	{
 	case Memory_PS3:
-		MemoryBlocks.push_back(MainMem.SetRange(0x00010000, 0x2FFF0000));
-		MemoryBlocks.push_back(UserMemory = PRXMem.SetRange(0x30000000, 0x10000000));
-		MemoryBlocks.push_back(RSXCMDMem.SetRange(0x40000000, 0x10000000));
-		MemoryBlocks.push_back(SPRXMem.SetRange(0x50000000, 0x10000000));
-		MemoryBlocks.push_back(MmaperMem.SetRange(0xB0000000, 0x10000000));
+		MemoryBlocks.push_back(MainMem.SetRange(0x00010000, 0x1FFF0000));
+		MemoryBlocks.push_back(UserMemory = Userspace.SetRange(0x20000000, 0x10000000));
 		MemoryBlocks.push_back(RSXFBMem.SetRange(0xC0000000, 0x10000000));
 		MemoryBlocks.push_back(StackMem.SetRange(0xD0000000, 0x10000000));
 		break;
@@ -189,7 +138,7 @@ bool MemoryBase::Map(const u32 addr, const u32 size)
 
 	for (u32 i = addr / 4096; i < addr / 4096 + size / 4096; i++)
 	{
-		if (m_pages[i])
+		if (vm::check_addr(i * 4096, 4096))
 		{
 			return false;
 		}
@@ -220,45 +169,15 @@ bool MemoryBase::Unmap(const u32 addr)
 MemBlockInfo::MemBlockInfo(u32 addr, u32 size)
 	: MemInfo(addr, size)
 {
-	assert(size && (size | addr) % 4096 == 0);
-
-	void* real_addr = vm::get_ptr(addr);
-	void* priv_addr = vm::get_priv_ptr(addr);
-
-#ifdef _WIN32
-	if (!VirtualAlloc(priv_addr, size, MEM_COMMIT, PAGE_READWRITE) || !VirtualAlloc(real_addr, size, MEM_COMMIT, PAGE_READWRITE))
-#else
-	if (mprotect(real_addr, size, PROT_READ | PROT_WRITE) || mprotect(priv_addr, size, PROT_READ | PROT_WRITE))
-#endif
-	{
-		LOG_ERROR(MEMORY, "Memory allocation failed (addr=0x%x, size=0x%x)", addr, size);
-		Emu.Pause();
-	}
-	else
-	{
-		Memory.RegisterPages(addr, size);
-
-		mem = real_addr;
-		memset(mem, 0, size); // ???
-	}
+	vm::page_map(addr, size, vm::page_readable | vm::page_writable | vm::page_executable);
 }
 
 void MemBlockInfo::Free()
 {
-	if (mem)
+	if (addr && size)
 	{
-		Memory.UnregisterPages(addr, size);
-#ifdef _WIN32
-		DWORD old;
-
-		if (!VirtualProtect(mem, size, PAGE_NOACCESS, &old) || !VirtualProtect(vm::get_priv_ptr(addr), size, PAGE_NOACCESS, &old))
-#else
-		if (mprotect(mem, size, PROT_NONE) || mprotect(vm::get_priv_ptr(addr), size, PROT_NONE))
-#endif
-		{
-			LOG_ERROR(MEMORY, "Memory deallocation failed (addr=0x%x, size=0x%x)", addr, size);
-			Emu.Pause();
-		}
+		vm::page_unmap(addr, size);
+		addr = size = 0;
 	}
 }
 
@@ -277,21 +196,14 @@ void MemoryBlock::Init()
 {
 	range_start = 0;
 	range_size = 0;
-
-	mem = vm::get_ptr<u8>(0u);
 }
 
 void MemoryBlock::InitMemory()
 {
-	if (!range_size)
-	{
-		mem = vm::get_ptr<u8>(range_start);
-	}
-	else
+	if (range_size)
 	{
 		Free();
 		mem_inf = new MemBlockInfo(range_start, range_size);
-		mem = (u8*)mem_inf->mem;
 	}
 }
 
diff --git a/rpcs3/Emu/Memory/Memory.h b/rpcs3/Emu/Memory/Memory.h
index 84b459f9bb..a6e6edbf94 100644
--- a/rpcs3/Emu/Memory/Memory.h
+++ b/rpcs3/Emu/Memory/Memory.h
@@ -30,16 +30,12 @@ namespace vm
 class MemoryBase
 {
 	std::vector<MemoryBlock*> MemoryBlocks;
-	u32 m_pages[0x100000000 / 4096]; // information about every page
 
 public:
 	MemoryBlock* UserMemory;
 
 	DynamicMemoryBlock MainMem;
-	DynamicMemoryBlock SPRXMem;
-	DynamicMemoryBlock PRXMem;
-	DynamicMemoryBlock RSXCMDMem;
-	DynamicMemoryBlock MmaperMem;
+	DynamicMemoryBlock Userspace;
 	DynamicMemoryBlock RSXFBMem;
 	DynamicMemoryBlock StackMem;
 	MemoryBlock* RawSPUMem[(0x100000000 - RAW_SPU_BASE_ADDR) / RAW_SPU_OFFSET];
@@ -82,27 +78,6 @@ public:
 
 	void Init(MemoryType type);
 
-	bool IsGoodAddr(const u32 addr)
-	{
-		return m_pages[addr / 4096] != 0; // TODO: define page parameters
-	}
-
-	bool IsGoodAddr(const u32 addr, const u32 size)
-	{
-		if (!size || addr + size - 1 < addr)
-		{
-			return false;
-		}
-		else
-		{
-			for (u32 i = addr / 4096; i <= (addr + size - 1) / 4096; i++)
-			{
-				if (!m_pages[i]) return false; // TODO: define page parameters
-			}
-			return true;
-		}
-	}
-
 	void Close();
 
 	__noinline void WriteMMIO32(u32 addr, const u32 data);
diff --git a/rpcs3/Emu/Memory/MemoryBlock.h b/rpcs3/Emu/Memory/MemoryBlock.h
index 81dfcd3e1d..4cabf37db0 100644
--- a/rpcs3/Emu/Memory/MemoryBlock.h
+++ b/rpcs3/Emu/Memory/MemoryBlock.h
@@ -22,8 +22,6 @@ struct MemInfo
 
 struct MemBlockInfo : public MemInfo
 {
-	void *mem;
-
 	MemBlockInfo(u32 addr, u32 size);
 
 	void Free();
@@ -32,27 +30,26 @@ struct MemBlockInfo : public MemInfo
 
 	MemBlockInfo(MemBlockInfo &&other)
 		: MemInfo(other.addr,other.size)
-		, mem(other.mem)
 	{
-		other.mem = nullptr;
+		other.addr = 0;
+		other.size = 0;
 	}
 
 	MemBlockInfo& operator =(MemBlockInfo &other) = delete;
 
 	MemBlockInfo& operator =(MemBlockInfo &&other)
 	{
-		this->Free();
+		Free();
 		this->addr = other.addr;
 		this->size = other.size;
-		this->mem = other.mem;
-		other.mem = nullptr;
+		other.addr = 0;
+		other.size = 0;
 		return *this;
 	}
 
 	~MemBlockInfo()
 	{
 		Free();
-		mem = nullptr;
 	}
 };
 
@@ -76,7 +73,6 @@ struct VirtualMemInfo : public MemInfo
 class MemoryBlock
 {
 protected:
-	u8* mem;
 	u32 range_start;
 	u32 range_size;
 
diff --git a/rpcs3/Emu/Memory/vm.cpp b/rpcs3/Emu/Memory/vm.cpp
index 1a0b9edd5c..188f0f373e 100644
--- a/rpcs3/Emu/Memory/vm.cpp
+++ b/rpcs3/Emu/Memory/vm.cpp
@@ -80,6 +80,8 @@ namespace vm
 
 	void* const g_base_addr = (atexit(finalize), initialize());
 
+	std::array<atomic_le_t<u8>, 0x100000000ull / 4096> g_page_info = {}; // information about every page
+
 	class reservation_mutex_t
 	{
 		std::atomic<NamedThreadBase*> m_owner;
@@ -211,6 +213,12 @@ namespace vm
 		{
 			std::lock_guard<reservation_mutex_t> lock(g_reservation_mutex);
 
+			u8 flags = g_page_info[addr >> 12].read_relaxed();
+			if (!(flags & page_writable) || !(flags & page_allocated) || (flags & page_no_reservations))
+			{
+				throw fmt::format("vm::reservation_acquire(addr=0x%x, size=0x%x) failed (invalid page flags: 0x%x)", addr, size, flags);
+			}
+
 			// silent unlocking to prevent priority boost for threads going to break reservation
 			//g_reservation_mutex.do_notify = false;
 
@@ -272,13 +280,9 @@ namespace vm
 	{
 		std::lock_guard<reservation_mutex_t> lock(g_reservation_mutex);
 
+		if (!check_addr(addr))
 		{
-			LV2_LOCK(0);
-
-			if (!Memory.IsGoodAddr(addr))
-			{
-				return false;
-			}
+			return false;
 		}
 
 		if (is_writing)
@@ -335,11 +339,157 @@ namespace vm
 		_reservation_break(addr);
 	}
 
-	bool check_addr(u32 addr)
+	void page_map(u32 addr, u32 size, u8 flags)
 	{
-		// Checking address before using it is unsafe.
-		// The only safe way to check it is to protect both actions (checking and using) with mutex that is used for mapping/allocation.
-		return false;
+		assert(size && (size | addr) % 4096 == 0 && flags < page_allocated);
+
+		std::lock_guard<reservation_mutex_t> lock(g_reservation_mutex);
+
+		for (u32 i = addr / 4096; i < addr / 4096 + size / 4096; i++)
+		{
+			if (g_page_info[i].read_relaxed())
+			{
+				throw fmt::format("vm::page_map(addr=0x%x, size=0x%x, flags=0x%x) failed (already mapped at 0x%x)", addr, size, flags, i * 4096);
+			}
+		}
+
+		void* real_addr = vm::get_ptr(addr);
+		void* priv_addr = vm::get_priv_ptr(addr);
+
+#ifdef _WIN32
+		auto protection = flags & page_writable ? PAGE_READWRITE : (flags & page_readable ? PAGE_READONLY : PAGE_NOACCESS);
+		if (!VirtualAlloc(priv_addr, size, MEM_COMMIT, PAGE_READWRITE) || !VirtualAlloc(real_addr, size, MEM_COMMIT, protection))
+#else
+		auto protection = flags & page_writable ? PROT_WRITE | PROT_READ : (flags & page_readable ? PROT_READ : PROT_NONE);
+		if (mprotect(priv_addr, size, PROT_READ | PROT_WRITE) || mprotect(real_addr, size, protection))
+#endif
+		{
+			throw fmt::format("vm::page_map(addr=0x%x, size=0x%x, flags=0x%x) failed (API)", addr, size, flags);
+		}
+
+		for (u32 i = addr / 4096; i < addr / 4096 + size / 4096; i++)
+		{
+			if (g_page_info[i].exchange(flags | page_allocated))
+			{
+				throw fmt::format("vm::page_map(addr=0x%x, size=0x%x, flags=0x%x) failed (concurrent access at 0x%x)", addr, size, flags, i * 4096);
+			}
+		}
+
+		memset(priv_addr, 0, size); // ???
+	}
+
+	bool page_protect(u32 addr, u32 size, u8 flags_test, u8 flags_set, u8 flags_clear)
+	{
+		u8 flags_inv = flags_set & flags_clear;
+
+		assert(size && (size | addr) % 4096 == 0);
+
+		flags_test |= page_allocated;
+
+		std::lock_guard<reservation_mutex_t> lock(g_reservation_mutex);
+
+		for (u32 i = addr / 4096; i < addr / 4096 + size / 4096; i++)
+		{
+			if ((g_page_info[i].read_relaxed() & flags_test) != (flags_test | page_allocated))
+			{
+				return false;
+			}
+		}
+
+		if (!flags_inv && !flags_set && !flags_clear)
+		{
+			return true;
+		}
+
+		for (u32 i = addr / 4096; i < addr / 4096 + size / 4096; i++)
+		{
+			_reservation_break(i * 4096);
+
+			const u8 f1 = g_page_info[i]._or(flags_set & ~flags_inv) & (page_writable | page_readable);
+			g_page_info[i]._and_not(flags_clear & ~flags_inv);
+			const u8 f2 = (g_page_info[i] ^= flags_inv) & (page_writable | page_readable);
+
+			if (f1 != f2)
+			{
+				void* real_addr = vm::get_ptr(i * 4096);
+
+#ifdef _WIN32
+				DWORD old;
+
+				auto protection = f2 & page_writable ? PAGE_READWRITE : (f2 & page_readable ? PAGE_READONLY : PAGE_NOACCESS);
+				if (!VirtualProtect(real_addr, size, protection, &old))
+#else
+				auto protection = f2 & page_writable ? PROT_WRITE | PROT_READ : (f2 & page_readable ? PROT_READ : PROT_NONE);
+				if (mprotect(real_addr, size, protection))
+#endif
+				{
+					throw fmt::format("vm::page_protect(addr=0x%x, size=0x%x, flags_test=0x%x, flags_set=0x%x, flags_clear=0x%x) failed (API)", addr, size, flags_test, flags_set, flags_clear);
+				}
+			}
+		}
+
+		return true;
+	}
+
+	void page_unmap(u32 addr, u32 size)
+	{
+		assert(size && (size | addr) % 4096 == 0);
+
+		std::lock_guard<reservation_mutex_t> lock(g_reservation_mutex);
+
+		for (u32 i = addr / 4096; i < addr / 4096 + size / 4096; i++)
+		{
+			if (!(g_page_info[i].read_relaxed() & page_allocated))
+			{
+				throw fmt::format("vm::page_unmap(addr=0x%x, size=0x%x) failed (not mapped at 0x%x)", addr, size, i * 4096);
+			}
+		}
+
+		for (u32 i = addr / 4096; i < addr / 4096 + size / 4096; i++)
+		{
+			_reservation_break(i * 4096);
+
+			if (!(g_page_info[i].exchange(0) & page_allocated))
+			{
+				throw fmt::format("vm::page_unmap(addr=0x%x, size=0x%x) failed (concurrent access at 0x%x)", addr, size, i * 4096);
+			}
+		}
+
+		void* real_addr = vm::get_ptr(addr);
+		void* priv_addr = vm::get_priv_ptr(addr);
+
+#ifdef _WIN32
+		DWORD old;
+
+		if (!VirtualProtect(real_addr, size, PAGE_NOACCESS, &old) || !VirtualProtect(priv_addr, size, PAGE_NOACCESS, &old))
+#else
+		if (mprotect(real_addr, size, PROT_NONE) || mprotect(priv_addr, size, PROT_NONE))
+#endif
+		{
+			throw fmt::format("vm::page_unmap(addr=0x%x, size=0x%x) failed (API)", addr, size);
+		}
+	}
+
+	// Not checked if address is writable/readable. Checking address before using it is unsafe.
+	// The only safe way to check it is to protect both actions (checking and using) with mutex that is used for mapping/allocation.
+	bool check_addr(u32 addr, u32 size)
+	{
+		assert(size);
+
+		if (addr + (size - 1) < addr)
+		{
+			return false;
+		}
+
+		for (u32 i = addr / 4096; i <= (addr + size - 1) / 4096; i++)
+		{
+			if ((g_page_info[i].read_sync() & page_allocated) != page_allocated)
+			{
+				return false;
+			}
+		}
+		
+		return true;
 	}
 
 	//TODO
@@ -406,6 +556,19 @@ namespace vm
 			Memory.MainMem.Free(addr);
 		}
 
+		u32 user_space_alloc(u32 size)
+		{
+			return Memory.Userspace.AllocAlign(size, 1);
+		}
+		u32 user_space_fixed_alloc(u32 addr, u32 size)
+		{
+			return Memory.Userspace.AllocFixed(addr, size) ? addr : 0;
+		}
+		void user_space_dealloc(u32 addr)
+		{
+			Memory.Userspace.Free(addr);
+		}
+
 		u32 g_stack_offset = 0;
 
 		u32 stack_alloc(u32 size)
@@ -421,32 +584,6 @@ namespace vm
 			Memory.StackMem.Free(addr);
 		}
 
-		u32 sprx_alloc(u32 size)
-		{
-			return Memory.SPRXMem.AllocAlign(size, 1);
-		}
-		u32 sprx_fixed_alloc(u32 addr, u32 size)
-		{
-			return Memory.SPRXMem.AllocFixed(Memory.SPRXMem.GetStartAddr() + addr, size) ? Memory.SPRXMem.GetStartAddr() + addr : 0;
-		}
-		void sprx_dealloc(u32 addr)
-		{
-			Memory.SPRXMem.Free(addr);
-		}
-
-		u32 user_space_alloc(u32 size)
-		{
-			return Memory.PRXMem.AllocAlign(size, 1);
-		}
-		u32 user_space_fixed_alloc(u32 addr, u32 size)
-		{
-			return Memory.PRXMem.AllocFixed(addr, size) ? addr : 0;
-		}
-		void user_space_dealloc(u32 addr)
-		{
-			Memory.PRXMem.Free(addr);
-		}
-
 		void init()
 		{
 			Memory.Init(Memory_PS3);
@@ -471,13 +608,9 @@ namespace vm
 
 	location_info g_locations[memory_location_count] =
 	{
-		{ 0x00010000, 0x2FFF0000, ps3::main_alloc, ps3::main_fixed_alloc, ps3::main_dealloc },
+		{ 0x00010000, 0x1FFF0000, ps3::main_alloc, ps3::main_fixed_alloc, ps3::main_dealloc },
+		{ 0x20000000, 0x10000000, ps3::user_space_alloc, ps3::user_space_fixed_alloc, ps3::user_space_dealloc },
 		{ 0xD0000000, 0x10000000, ps3::stack_alloc, ps3::stack_fixed_alloc, ps3::stack_dealloc },
-
-		//remove me
-		{ 0x00010000, 0x2FFF0000, ps3::sprx_alloc, ps3::sprx_fixed_alloc, ps3::sprx_dealloc },
-
-		{ 0x30000000, 0x10000000, ps3::user_space_alloc, ps3::user_space_fixed_alloc, ps3::user_space_dealloc },
 	};
 
 	void close()
diff --git a/rpcs3/Emu/Memory/vm.h b/rpcs3/Emu/Memory/vm.h
index a49c21eaab..5e07706646 100644
--- a/rpcs3/Emu/Memory/vm.h
+++ b/rpcs3/Emu/Memory/vm.h
@@ -8,16 +8,24 @@ namespace vm
 	enum memory_location : uint
 	{
 		main,
+		user_space,
 		stack,
 
-		//remove me
-		sprx,
-
-		user_space,
-
 		memory_location_count
 	};
 
+	enum page_info_t : u8
+	{
+		page_readable           = (1 << 0),
+		page_writable           = (1 << 1),
+		page_executable         = (1 << 2),
+
+		page_fault_notification = (1 << 3),
+		page_no_reservations    = (1 << 4),
+
+		page_allocated          = (1 << 7),
+	};
+
 	static void set_stack_size(u32 size) {}
 	static void initialize_stack() {}
 
@@ -34,11 +42,23 @@ namespace vm
 	bool reservation_acquire(void* data, u32 addr, u32 size, const std::function<void()>& callback = nullptr);
 	// attempt to atomically update reserved memory
 	bool reservation_update(u32 addr, const void* data, u32 size);
+	// for internal use
 	bool reservation_query(u32 addr, bool is_writing);
+	// for internal use
 	void reservation_free();
 	// perform complete operation
 	void reservation_op(u32 addr, u32 size, std::function<void()> proc);
 
+	// for internal use
+	void page_map(u32 addr, u32 size, u8 flags);
+	// for internal use
+	bool page_protect(u32 addr, u32 size, u8 flags_test = 0, u8 flags_set = 0, u8 flags_clear = 0);
+	// for internal use
+	void page_unmap(u32 addr, u32 size);
+
+	// unsafe address check
+	bool check_addr(u32 addr, u32 size = 1);
+
 	bool map(u32 addr, u32 size, u32 flags);
 	bool unmap(u32 addr, u32 size = 0, u32 flags = 0);
 	u32 alloc(u32 size, memory_location location = user_space);
diff --git a/rpcs3/Emu/Memory/vm_var.h b/rpcs3/Emu/Memory/vm_var.h
index 06864950b9..a8c380aac1 100644
--- a/rpcs3/Emu/Memory/vm_var.h
+++ b/rpcs3/Emu/Memory/vm_var.h
@@ -35,7 +35,7 @@ namespace vm
 
 		void alloc()
 		{
-			m_addr = vm::cast(Memory.Alloc(size(), m_align));
+			m_addr = Memory.Alloc(size(), m_align);
 			m_ptr = vm::get_ptr<T>(m_addr);
 		}
 
@@ -162,7 +162,7 @@ namespace vm
 
 		void alloc()
 		{
-			m_addr = vm::cast(Memory.Alloc(size(), m_align));
+			m_addr = Memory.Alloc(size(), m_align);
 			m_ptr = vm::get_ptr<T>(m_addr);
 		}
 
diff --git a/rpcs3/Emu/RSX/GCM.h b/rpcs3/Emu/RSX/GCM.h
index 929b968503..c372ddd6b1 100644
--- a/rpcs3/Emu/RSX/GCM.h
+++ b/rpcs3/Emu/RSX/GCM.h
@@ -235,6 +235,7 @@ struct gcmInfo
 	u32 config_addr;
 	u32 context_addr;
 	u32 control_addr;
+	u32 label_addr;
 };
 
 struct CellGcmSurface
diff --git a/rpcs3/Emu/RSX/GL/GLGSRender.cpp b/rpcs3/Emu/RSX/GL/GLGSRender.cpp
index 1b3df4a0bd..b1f0475d9d 100644
--- a/rpcs3/Emu/RSX/GL/GLGSRender.cpp
+++ b/rpcs3/Emu/RSX/GL/GLGSRender.cpp
@@ -104,12 +104,7 @@ void GLTexture::Init(RSXTexture& tex)
 
 	Bind();
 
-	const u64 texaddr = GetAddress(tex.GetOffset(), tex.GetLocation());
-	if (!Memory.IsGoodAddr(texaddr))
-	{
-		LOG_ERROR(RSX, "Bad texture address=0x%x", texaddr);
-		return;
-	}
+	const u32 texaddr = GetAddress(tex.GetOffset(), tex.GetLocation());
 	//LOG_WARNING(RSX, "texture addr = 0x%x, width = %d, height = %d, max_aniso=%d, mipmap=%d, remap=0x%x, zfunc=0x%x, wraps=0x%x, wrapt=0x%x, wrapr=0x%x, minlod=0x%x, maxlod=0x%x", 
 	//	m_offset, m_width, m_height, m_maxaniso, m_mipmap, m_remap, m_zfunc, m_wraps, m_wrapt, m_wrapr, m_minlod, m_maxlod);
 	
@@ -1242,11 +1237,6 @@ void GLGSRender::WriteDepthBuffer()
 	}
 
 	u32 address = GetAddress(m_surface_offset_z, m_context_dma_z - 0xfeed0000);
-	if (!Memory.IsGoodAddr(address))
-	{
-		LOG_WARNING(RSX, "Bad depth buffer address: address=0x%x, offset=0x%x, dma=0x%x", address, m_surface_offset_z, m_context_dma_z);
-		return;
-	}
 
 	auto ptr = vm::get_ptr<void>(address);
 	glBindBuffer(GL_PIXEL_PACK_BUFFER, g_pbo[4]);
@@ -1279,11 +1269,6 @@ void GLGSRender::WriteColorBufferA()
 	}
 
 	u32 address = GetAddress(m_surface_offset_a, m_context_dma_color_a - 0xfeed0000);
-	if (!Memory.IsGoodAddr(address))
-	{
-		LOG_ERROR(RSX, "Bad color buffer A address: address=0x%x, offset=0x%x, dma=0x%x", address, m_surface_offset_a, m_context_dma_color_a);
-		return;
-	}
 
 	glReadBuffer(GL_COLOR_ATTACHMENT0);
 	checkForGlError("WriteColorBufferA(): glReadBuffer");
@@ -1310,11 +1295,6 @@ void GLGSRender::WriteColorBufferB()
 	}
 
 	u32 address = GetAddress(m_surface_offset_b, m_context_dma_color_b - 0xfeed0000);
-	if (!Memory.IsGoodAddr(address))
-	{
-		LOG_ERROR(RSX, "Bad color buffer B address: address=0x%x, offset=0x%x, dma=0x%x", address, m_surface_offset_b, m_context_dma_color_b);
-		return;
-	}
 
 	glReadBuffer(GL_COLOR_ATTACHMENT1);
 	checkForGlError("WriteColorBufferB(): glReadBuffer");
@@ -1341,11 +1321,6 @@ void GLGSRender::WriteColorBufferC()
 	}
 
 	u32 address = GetAddress(m_surface_offset_c, m_context_dma_color_c - 0xfeed0000);
-	if (!Memory.IsGoodAddr(address))
-	{
-		LOG_ERROR(RSX, "Bad color buffer C address: address=0x%x, offset=0x%x, dma=0x%x", address, m_surface_offset_c, m_context_dma_color_c);
-		return;
-	}
 
 	glReadBuffer(GL_COLOR_ATTACHMENT2);
 	checkForGlError("WriteColorBufferC(): glReadBuffer");
@@ -1372,11 +1347,6 @@ void GLGSRender::WriteColorBufferD()
 	}
 
 	u32 address = GetAddress(m_surface_offset_d, m_context_dma_color_d - 0xfeed0000);
-	if (!Memory.IsGoodAddr(address))
-	{
-		LOG_ERROR(RSX, "Bad color buffer D address: address=0x%x, offset=0x%x, dma=0x%x", address, m_surface_offset_d, m_context_dma_color_d);
-		return;
-	}
 
 	glReadBuffer(GL_COLOR_ATTACHMENT3);
 	checkForGlError("WriteColorBufferD(): glReadBuffer");
@@ -1682,14 +1652,9 @@ void GLGSRender::InitDrawBuffers()
 		u32 format = GL_BGRA;
 		CellGcmDisplayInfo* buffers = vm::get_ptr<CellGcmDisplayInfo>(m_gcm_buffers_addr);
 		u32 addr = GetAddress(buffers[m_gcm_current_buffer].offset, CELL_GCM_LOCATION_LOCAL);
-
-		if (Memory.IsGoodAddr(addr))
-		{
-			u32 width = buffers[m_gcm_current_buffer].width;
-			u32 height = buffers[m_gcm_current_buffer].height;
-
-			glDrawPixels(width, height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, vm::get_ptr(addr));
-		}
+		u32 width = buffers[m_gcm_current_buffer].width;
+		u32 height = buffers[m_gcm_current_buffer].height;
+		glDrawPixels(width, height, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, vm::get_ptr(addr));
 	}
 }
 
@@ -2139,17 +2104,9 @@ void GLGSRender::Flip()
 			format = GL_BGRA;
 			CellGcmDisplayInfo* buffers = vm::get_ptr<CellGcmDisplayInfo>(m_gcm_buffers_addr);
 			u32 addr = GetAddress(buffers[m_gcm_current_buffer].offset, CELL_GCM_LOCATION_LOCAL);
-
-			if (Memory.IsGoodAddr(addr))
-			{
-				width = buffers[m_gcm_current_buffer].width;
-				height = buffers[m_gcm_current_buffer].height;
-				src_buffer = vm::get_ptr<u8>(addr);
-			}
-			else
-			{
-				src_buffer = nullptr;
-			}
+			width = buffers[m_gcm_current_buffer].width;
+			height = buffers[m_gcm_current_buffer].height;
+			src_buffer = vm::get_ptr<u8>(addr);
 		}
 		else if (m_fbo.IsCreated())
 		{
diff --git a/rpcs3/Emu/RSX/RSXThread.cpp b/rpcs3/Emu/RSX/RSXThread.cpp
index 45ab4e068d..e302ec5de5 100644
--- a/rpcs3/Emu/RSX/RSXThread.cpp
+++ b/rpcs3/Emu/RSX/RSXThread.cpp
@@ -261,7 +261,7 @@ void RSXThread::DoCmd(const u32 fcmd, const u32 cmd, const u32 args_addr, const
 		if (m_set_semaphore_offset)
 		{
 			m_set_semaphore_offset = false;
-			vm::write32(Memory.RSXCMDMem.GetStartAddr() + m_semaphore_offset, ARGS(0));
+			vm::write32(m_label_addr + m_semaphore_offset, ARGS(0));
 		}
 		break;
 	}
@@ -274,7 +274,7 @@ void RSXThread::DoCmd(const u32 fcmd, const u32 cmd, const u32 args_addr, const
 			u32 value = ARGS(0);
 			value = (value & 0xff00ff00) | ((value & 0xff) << 16) | ((value >> 16) & 0xff);
 
-			vm::write32(Memory.RSXCMDMem.GetStartAddr() + m_semaphore_offset, value);
+			vm::write32(m_label_addr + m_semaphore_offset, value);
 		}
 		break;
 	}
diff --git a/rpcs3/Emu/RSX/RSXThread.h b/rpcs3/Emu/RSX/RSXThread.h
index 75ea01fe78..79bc63a96f 100644
--- a/rpcs3/Emu/RSX/RSXThread.h
+++ b/rpcs3/Emu/RSX/RSXThread.h
@@ -134,6 +134,7 @@ public:
 	u32 m_gcm_current_buffer;
 	u32 m_ctxt_addr;
 	u32 m_report_main_addr;
+	u32 m_label_addr;
 
 	// DMA
 	u32 dma_report;
diff --git a/rpcs3/Emu/SysCalls/Modules/cellAudio.cpp b/rpcs3/Emu/SysCalls/Modules/cellAudio.cpp
index 56cd7a7e79..11e7b78220 100644
--- a/rpcs3/Emu/SysCalls/Modules/cellAudio.cpp
+++ b/rpcs3/Emu/SysCalls/Modules/cellAudio.cpp
@@ -41,8 +41,8 @@ s32 cellAudioInit()
 	g_audio.start_time = get_system_time();
 
 	// alloc memory (only once until the emulator is stopped)
-	g_audio.buffer = g_audio.buffer ? g_audio.buffer : vm::cast(Memory.MainMem.AllocAlign(AUDIO_PORT_OFFSET * AUDIO_PORT_COUNT, 4096));
-	g_audio.indexes = g_audio.indexes ? g_audio.indexes : vm::cast(Memory.MainMem.AllocAlign(sizeof(u64) * AUDIO_PORT_COUNT, __alignof(u64)));
+	g_audio.buffer = g_audio.buffer ? g_audio.buffer : Memory.MainMem.AllocAlign(AUDIO_PORT_OFFSET * AUDIO_PORT_COUNT, 4096);
+	g_audio.indexes = g_audio.indexes ? g_audio.indexes : Memory.MainMem.AllocAlign(sizeof(u64) * AUDIO_PORT_COUNT, __alignof(u64));
 
 	// clear memory
 	memset(vm::get_ptr<void>(g_audio.buffer), 0, AUDIO_PORT_OFFSET * AUDIO_PORT_COUNT);
diff --git a/rpcs3/Emu/SysCalls/Modules/cellGcmSys.cpp b/rpcs3/Emu/SysCalls/Modules/cellGcmSys.cpp
index 547c1b61ad..2b9ee49ff2 100644
--- a/rpcs3/Emu/SysCalls/Modules/cellGcmSys.cpp
+++ b/rpcs3/Emu/SysCalls/Modules/cellGcmSys.cpp
@@ -76,7 +76,7 @@ void InitOffsetTable()
 u32 cellGcmGetLabelAddress(u8 index)
 {
 	cellGcmSys->Log("cellGcmGetLabelAddress(index=%d)", index);
-	return (u32)Memory.RSXCMDMem.GetStartAddr() + 0x10 * index;
+	return gcm_info.label_addr + 0x10 * index;
 }
 
 vm::ptr<CellGcmReportData> cellGcmGetReportDataAddressLocation(u32 index, u32 location)
@@ -360,8 +360,6 @@ s32 _cellGcmInitBody(vm::ptr<CellGcmContextData> context, u32 cmdSize, u32 ioSiz
 	current_config.memoryFrequency = 650000000;
 	current_config.coreFrequency = 500000000;
 
-	Memory.RSXCMDMem.AllocAlign(cmdSize);
-
 	u32 ctx_begin = ioAddress/* + 0x1000*/;
 	u32 ctx_size = 0x6ffc;
 	current_context.begin = ctx_begin;
@@ -369,9 +367,11 @@ s32 _cellGcmInitBody(vm::ptr<CellGcmContextData> context, u32 cmdSize, u32 ioSiz
 	current_context.current = current_context.begin;
 	current_context.callback.set(be_t<u32>::make(Emu.GetRSXCallback() - 4));
 
-	gcm_info.context_addr = (u32)Memory.MainMem.AllocAlign(0x1000);
+	gcm_info.context_addr = Memory.MainMem.AllocAlign(0x1000);
 	gcm_info.control_addr = gcm_info.context_addr + 0x40;
 
+	gcm_info.label_addr = Memory.MainMem.AllocAlign(0x1000); // ???
+
 	vm::get_ref<CellGcmContextData>(gcm_info.context_addr) = current_context;
 	vm::write32(context.addr(), gcm_info.context_addr);
 
@@ -388,6 +388,7 @@ s32 _cellGcmInitBody(vm::ptr<CellGcmContextData> context, u32 cmdSize, u32 ioSiz
 	render.m_gcm_buffers_count = 0;
 	render.m_gcm_current_buffer = 0;
 	render.m_main_mem_addr = 0;
+	render.m_label_addr = gcm_info.label_addr;
 	render.Init(ctx_begin, ctx_size, gcm_info.control_addr, local_addr);
 
 	return CELL_OK;
@@ -1109,7 +1110,7 @@ int cellGcmSetFlipCommandWithWaitLabel(vm::ptr<CellGcmContextData> ctx, u32 id,
 		ctx.addr(), id, label_index, label_value);
 
 	int res = cellGcmSetPrepareFlip(ctx, id);
-	vm::write32(Memory.RSXCMDMem.GetStartAddr() + 0x10 * label_index, label_value);
+	vm::write32(gcm_info.label_addr + 0x10 * label_index, label_value);
 	return res < 0 ? CELL_GCM_ERROR_FAILURE : CELL_OK;
 }
 
diff --git a/rpcs3/Emu/SysCalls/Modules/sysPrxForUser.cpp b/rpcs3/Emu/SysCalls/Modules/sysPrxForUser.cpp
index 961e04dde3..37ae8f610c 100644
--- a/rpcs3/Emu/SysCalls/Modules/sysPrxForUser.cpp
+++ b/rpcs3/Emu/SysCalls/Modules/sysPrxForUser.cpp
@@ -41,7 +41,7 @@ u32 ppu_get_tls(u32 thread)
 	if (!g_tls_start)
 	{
 		g_tls_size = Emu.GetTLSMemsz() + TLS_SYS;
-		g_tls_start = vm::cast(Memory.MainMem.AllocAlign(g_tls_size * TLS_MAX, 4096)); // memory for up to TLS_MAX threads
+		g_tls_start = Memory.MainMem.AllocAlign(g_tls_size * TLS_MAX, 4096); // memory for up to TLS_MAX threads
 		sysPrxForUser->Notice("Thread Local Storage initialized (g_tls_start=0x%x, user_size=0x%x)\n*** TLS segment addr: 0x%08x\n*** TLS segment size: 0x%08x",
 			g_tls_start, Emu.GetTLSMemsz(), Emu.GetTLSAddr(), Emu.GetTLSFilesz());
 	}
diff --git a/rpcs3/Emu/SysCalls/lv2/sys_spu.cpp b/rpcs3/Emu/SysCalls/lv2/sys_spu.cpp
index 8def286a85..26df83c60d 100644
--- a/rpcs3/Emu/SysCalls/lv2/sys_spu.cpp
+++ b/rpcs3/Emu/SysCalls/lv2/sys_spu.cpp
@@ -88,7 +88,7 @@ SPUThread* spu_thread_initialize(std::shared_ptr<SpuGroupInfo>& group, u32 spu_n
 	const u32 spu_ep = img.entry_point;
 	// Copy SPU image:
 	// TODO: use segment info
-	const u32 spu_offset = vm::cast(Memory.MainMem.AllocAlign(256 * 1024, 4096));
+	const u32 spu_offset = Memory.MainMem.AllocAlign(256 * 1024, 4096);
 	memcpy(vm::get_ptr<void>(spu_offset), vm::get_ptr<void>(img.addr), 256 * 1024);
 
 	SPUThread& new_thread = static_cast<SPUThread&>(Emu.GetCPU().AddThread(CPU_THREAD_SPU));
diff --git a/rpcs3/Emu/SysCalls/lv2/sys_vm.cpp b/rpcs3/Emu/SysCalls/lv2/sys_vm.cpp
index ed0615c13b..ab9c5cdcf6 100644
--- a/rpcs3/Emu/SysCalls/lv2/sys_vm.cpp
+++ b/rpcs3/Emu/SysCalls/lv2/sys_vm.cpp
@@ -27,7 +27,7 @@ s32 sys_vm_memory_map(u32 vsize, u32 psize, u32 cid, u64 flag, u64 policy, u32 a
 	}
 
 	// Use fixed address (TODO: search and use some free address instead)
-	u32 new_addr = Memory.IsGoodAddr(0x60000000) ? 0x70000000 : 0x60000000;
+	u32 new_addr = vm::check_addr(0x60000000) ? 0x70000000 : 0x60000000;
 
 	// If container ID is SYS_MEMORY_CONTAINER_ID_INVALID, allocate directly.
 	if(cid == SYS_MEMORY_CONTAINER_ID_INVALID)
@@ -45,7 +45,10 @@ s32 sys_vm_memory_map(u32 vsize, u32 psize, u32 cid, u64 flag, u64 policy, u32 a
 	}
 
 	// Allocate actual memory using virtual size (physical size is ignored)
-	assert(Memory.Map(new_addr, vsize));
+	if (!Memory.Map(new_addr, vsize))
+	{
+		return CELL_ENOMEM;
+	}
 
 	// Write a pointer for the allocated memory.
 	vm::write32(addr, new_addr);
diff --git a/rpcs3/Gui/InterpreterDisAsm.cpp b/rpcs3/Gui/InterpreterDisAsm.cpp
index b16742f078..2fb7e97fe4 100644
--- a/rpcs3/Gui/InterpreterDisAsm.cpp
+++ b/rpcs3/Gui/InterpreterDisAsm.cpp
@@ -251,7 +251,7 @@ void InterpreterDisAsmFrame::ShowAddr(const u64 addr)
 		disasm->offset = vm::get_ptr<u8>(CPU->GetOffset());
 		for(uint i=0, count = 4; i<m_item_count; ++i, PC += count)
 		{
-			if(!Memory.IsGoodAddr(CPU->GetOffset() + PC, 4))
+			if(!vm::check_addr(CPU->GetOffset() + PC, 4))
 			{
 				m_list->SetItem(i, 0, wxString(IsBreakPoint(PC) ? ">>> " : "    ") + wxString::Format("[%08llx] illegal address", PC));
 				count = 4;
diff --git a/rpcs3/Gui/MemoryStringSearcher.cpp b/rpcs3/Gui/MemoryStringSearcher.cpp
index 8676d57371..aa823d245e 100644
--- a/rpcs3/Gui/MemoryStringSearcher.cpp
+++ b/rpcs3/Gui/MemoryStringSearcher.cpp
@@ -45,7 +45,7 @@ void MemoryStringSearcher::Search(wxCommandEvent& event)
 	u32 strIndex = 0;
 	u32 numFound = 0;
 	for (u32 addr = Memory.MainMem.GetStartAddr(); addr < Memory.MainMem.GetEndAddr(); addr++) {
-		if (!Memory.IsGoodAddr(addr)) {
+		if (!vm::check_addr(addr)) {
 			strIndex = 0;
 			continue;
 		}
diff --git a/rpcs3/Gui/MemoryViewer.cpp b/rpcs3/Gui/MemoryViewer.cpp
index 59f3917713..f6455c12d7 100644
--- a/rpcs3/Gui/MemoryViewer.cpp
+++ b/rpcs3/Gui/MemoryViewer.cpp
@@ -200,7 +200,7 @@ void MemoryViewerPanel::ShowMemory()
 		{
 			u32 addr = m_addr + row * m_colcount + col;	
 
-			if (Memory.IsGoodAddr(addr))
+			if (vm::check_addr(addr))
 			{
 				const u8 rmem = vm::read8(addr);
 				t_mem_hex_str += wxString::Format("%02x ", rmem);
diff --git a/rpcs3/Gui/RSXDebugger.cpp b/rpcs3/Gui/RSXDebugger.cpp
index 4c408b509e..99ce16e0ae 100644
--- a/rpcs3/Gui/RSXDebugger.cpp
+++ b/rpcs3/Gui/RSXDebugger.cpp
@@ -259,14 +259,14 @@ void RSXDebugger::OnChangeToolsAddr(wxCommandEvent& event)
 
 void RSXDebugger::OnScrollMemory(wxMouseEvent& event)
 {
-	if(Memory.IsGoodAddr(m_addr))
+	if(vm::check_addr(m_addr))
 	{
 		int items = event.ControlDown() ? m_item_count : 1;
 
 		for(int i=0; i<items; ++i)
 		{
 			u32 offset;
-			if(Memory.IsGoodAddr(m_addr))
+			if(vm::check_addr(m_addr))
 			{
 				u32 cmd = vm::read32(m_addr);
 				u32 count = (cmd & (CELL_GCM_METHOD_FLAG_JUMP | CELL_GCM_METHOD_FLAG_CALL))
@@ -304,7 +304,7 @@ void RSXDebugger::OnClickBuffer(wxMouseEvent& event)
 #define SHOW_BUFFER(id) \
 	{ \
 		u32 addr = render.m_local_mem_addr + buffers[id].offset; \
-		if (Memory.IsGoodAddr(addr) && buffers[id].width && buffers[id].height) \
+		if (vm::check_addr(addr) && buffers[id].width && buffers[id].height) \
 			MemoryViewerPanel::ShowImage(this, addr, 3, buffers[id].width, buffers[id].height, true); \
 		return; \
 	} \
@@ -316,7 +316,7 @@ void RSXDebugger::OnClickBuffer(wxMouseEvent& event)
 	if (event.GetId() == p_buffer_tex->GetId())
 	{
 		u8 location = render.m_textures[m_cur_texture].GetLocation();
-		if(location <= 1 && Memory.IsGoodAddr(GetAddress(render.m_textures[m_cur_texture].GetOffset(), location))
+		if(location <= 1 && vm::check_addr(GetAddress(render.m_textures[m_cur_texture].GetOffset(), location))
 			&& render.m_textures[m_cur_texture].GetWidth() && render.m_textures[m_cur_texture].GetHeight())
 			MemoryViewerPanel::ShowImage(this,
 				GetAddress(render.m_textures[m_cur_texture].GetOffset(), location), 1,
@@ -380,7 +380,7 @@ void RSXDebugger::GetMemory()
 	{
 		m_list_commands->SetItem(i, 0, wxString::Format("%08x", addr));
 	
-		if (isReady && Memory.IsGoodAddr(addr))
+		if (isReady && vm::check_addr(addr))
 		{
 			u32 cmd = vm::read32(addr);
 			u32 count = (cmd >> 18) & 0x7ff;
@@ -409,13 +409,13 @@ void RSXDebugger::GetBuffers()
 	// TODO: Currently it only supports color buffers
 	for (u32 bufferId=0; bufferId < render.m_gcm_buffers_count; bufferId++)
 	{
-		if(!Memory.IsGoodAddr(render.m_gcm_buffers_addr))
+		if(!vm::check_addr(render.m_gcm_buffers_addr))
 			continue;
 
 		auto buffers = vm::get_ptr<CellGcmDisplayInfo>(render.m_gcm_buffers_addr);
 		u32 RSXbuffer_addr = render.m_local_mem_addr + buffers[bufferId].offset;
 
-		if(!Memory.IsGoodAddr(RSXbuffer_addr))
+		if(!vm::check_addr(RSXbuffer_addr))
 			continue;
 
 		auto RSXbuffer = vm::get_ptr<unsigned char>(RSXbuffer_addr);
@@ -467,7 +467,7 @@ void RSXDebugger::GetBuffers()
 
 	u32 TexBuffer_addr = GetAddress(offset, location);
 
-	if(!Memory.IsGoodAddr(TexBuffer_addr))
+	if(!vm::check_addr(TexBuffer_addr))
 		return;
 
 	unsigned char* TexBuffer = vm::get_ptr<unsigned char>(TexBuffer_addr);
diff --git a/rpcs3/Loader/ELF64.cpp b/rpcs3/Loader/ELF64.cpp
index ac64afc207..a83883484c 100644
--- a/rpcs3/Loader/ELF64.cpp
+++ b/rpcs3/Loader/ELF64.cpp
@@ -101,7 +101,7 @@ namespace loader
 						segment.size = phdr.p_memsz;
 						segment.size_file = phdr.p_filesz;
 
-						segment.begin.set(vm::alloc(segment.size, vm::sprx));
+						segment.begin.set(vm::alloc(segment.size, vm::main));
 
 						if (!segment.begin)
 						{