diff --git a/src/xenia/core/memory.cc b/src/xenia/core/memory.cc
index 4cb2f8249..2b8283deb 100644
--- a/src/xenia/core/memory.cc
+++ b/src/xenia/core/memory.cc
@@ -163,6 +163,13 @@ uint8_t *xe_memory_addr(xe_memory_ref memory, size_t guest_addr) {
   return (uint8_t*)memory->ptr + guest_addr;
 }
 
+void xe_memory_copy(xe_memory_ref memory,
+                    uint32_t dest, uint32_t src, uint32_t size) {
+  uint8_t* pdest = (uint8_t*)memory->ptr + dest;
+  uint8_t* psrc = (uint8_t*)memory->ptr + src;
+  XEIGNORE(xe_copy_memory(pdest, size, psrc, size));
+}
+
 uint32_t xe_memory_search_aligned(xe_memory_ref memory, size_t start,
                                   size_t end, const uint32_t *values,
                                   const size_t value_count) {
diff --git a/src/xenia/core/memory.h b/src/xenia/core/memory.h
index 0175b5600..4561b68d9 100644
--- a/src/xenia/core/memory.h
+++ b/src/xenia/core/memory.h
@@ -30,6 +30,9 @@ void xe_memory_release(xe_memory_ref memory);
 size_t xe_memory_get_length(xe_memory_ref memory);
 uint8_t *xe_memory_addr(xe_memory_ref memory, size_t guest_addr = 0);
 
+void xe_memory_copy(xe_memory_ref memory,
+                    uint32_t dest, uint32_t src, uint32_t size);
+
 uint32_t xe_memory_search_aligned(xe_memory_ref memory, size_t start,
                                   size_t end, const uint32_t *values,
                                   const size_t value_count);
diff --git a/src/xenia/kernel/modules/xboxkrnl/objects/xthread.cc b/src/xenia/kernel/modules/xboxkrnl/objects/xthread.cc
index 336fe8af8..0eba85b85 100644
--- a/src/xenia/kernel/modules/xboxkrnl/objects/xthread.cc
+++ b/src/xenia/kernel/modules/xboxkrnl/objects/xthread.cc
@@ -9,6 +9,8 @@
 
 #include <xenia/kernel/modules/xboxkrnl/objects/xthread.h>
 
+#include <xenia/kernel/modules/xboxkrnl/objects/xmodule.h>
+
 
 using namespace xe;
 using namespace xe::kernel;
@@ -48,6 +50,9 @@ XThread::~XThread() {
   if (processor_state_) {
     kernel_state()->processor()->DeallocThread(processor_state_);
   }
+  if (tls_address_) {
+    xe_memory_heap_free(kernel_state()->memory(), tls_address_, 0);
+  }
   if (thread_state_address_) {
     xe_memory_heap_free(kernel_state()->memory(), thread_state_address_, 0);
   }
@@ -82,20 +87,37 @@ X_STATUS XThread::Create() {
   // (like GetLastError/etc) will poke it directly.
   // We try to use it as our primary store of data just to keep things all
   // consistent.
-  thread_state_address_ = xe_memory_heap_alloc(memory(), 0, 2048, 0);
-  if (!thread_state_address_) {
-    XELOGW("Unable to allocate thread state block");
-    return X_STATUS_NO_MEMORY;
-  }
-
-  // Setup the thread state block (last error/etc).
+  // 0x000: pointer to tls data
   // 0x100: pointer to self?
   // 0x14C: thread id
   // 0x150: if >0 then error states don't get set
   // 0x160: last error
   // So, at offset 0x100 we have a 4b pointer to offset 200, then have the
   // structure.
+  thread_state_address_ = xe_memory_heap_alloc(memory(), 0, 2048, 0);
+  if (!thread_state_address_) {
+    XELOGW("Unable to allocate thread state block");
+    return X_STATUS_NO_MEMORY;
+  }
+
+  // Allocate TLS block.
+  XModule* module = kernel_state()->GetExecutableModule();
+  const xe_xex2_header_t* header = module->xex_header();
+  uint32_t tls_size = header->tls_info.slot_count * header->tls_info.data_size;
+  tls_address_ = xe_memory_heap_alloc(memory(), 0, tls_size, 0);
+  if (!tls_address_) {
+    XELOGW("Unable to allocate thread local storage block");
+    return X_STATUS_NO_MEMORY;
+  }
+
+  // Copy in default TLS info.
+  // TODO(benvanik): is this correct?
+  xe_memory_copy(memory(),
+      tls_address_, header->tls_info.raw_data_address, tls_size);
+
+  // Setup the thread state block (last error/etc).
   uint8_t *p = xe_memory_addr(memory(), thread_state_address_);
+  XESETUINT32BE(p + 0x000, tls_address_);
   XESETUINT32BE(p + 0x100, thread_state_address_);
   XESETUINT32BE(p + 0x14C, thread_id_);
   XESETUINT32BE(p + 0x150, 0); // ?
diff --git a/src/xenia/kernel/modules/xboxkrnl/objects/xthread.h b/src/xenia/kernel/modules/xboxkrnl/objects/xthread.h
index 32fdc2810..360a0f19a 100644
--- a/src/xenia/kernel/modules/xboxkrnl/objects/xthread.h
+++ b/src/xenia/kernel/modules/xboxkrnl/objects/xthread.h
@@ -55,6 +55,7 @@ private:
 
   uint32_t      thread_id_;
   void*         thread_handle_;
+  uint32_t      tls_address_;
   uint32_t      thread_state_address_;
   cpu::ThreadState* processor_state_;
 };