[Kernel] Enable XEX1 loading

src/xenia/cpu/xex_module.cc

@@ -103,10 +103,9 @@ bool XexModule::GetOptHeader(xex2_header_keys key, void** out_ptr) const {
   return XexModule::GetOptHeader(xex_header(), key, out_ptr);
 }
 
-const xex2_security_info* XexModule::GetSecurityInfo(
-    const xex2_header* header) {
-  return reinterpret_cast<const xex2_security_info*>(uintptr_t(header) +
-                                                     header->security_offset);
+const void* XexModule::GetSecurityInfo(const xex2_header* header) {
+  return reinterpret_cast<const void*>(uintptr_t(header) +
+                                       header->security_offset);
 }
 
 const PESection* XexModule::GetPESection(const char* name) {
@@ -870,7 +869,11 @@ bool XexModule::Load(const std::string& name, const std::string& path,
                      const void* xex_addr, size_t xex_length) {
   auto src_header = reinterpret_cast<const xex2_header*>(xex_addr);
 
-  if (src_header->magic != 'XEX2') {
+  if (src_header->magic == 'XEX1') {
+    xex_format_ = kFormatXex1;
+  } else if (src_header->magic == 'XEX2') {
+    xex_format_ = kFormatXex2;
+  } else {
     return false;
   }
 
@@ -881,6 +884,34 @@ bool XexModule::Load(const std::string& name, const std::string& path,
   xex_header_mem_.resize(src_header->header_size);
   std::memcpy(xex_header_mem_.data(), src_header, src_header->header_size);
 
+  if (xex_format_ == kFormatXex1) {
+    const xex1_security_info* xex1_sec_info =
+        reinterpret_cast<const xex1_security_info*>(
+            GetSecurityInfo(xex_header()));
+
+    security_info_.rsa_signature = xex1_sec_info->rsa_signature;
+    security_info_.aes_key = xex1_sec_info->aes_key;
+    security_info_.image_size = xex1_sec_info->image_size;
+    security_info_.image_flags = xex1_sec_info->image_flags;
+    security_info_.export_table = xex1_sec_info->export_table;
+    security_info_.load_address = xex1_sec_info->load_address;
+    security_info_.page_descriptor_count = xex1_sec_info->page_descriptor_count;
+    security_info_.page_descriptors = xex1_sec_info->page_descriptors;
+  } else if (xex_format_ == kFormatXex2) {
+    const xex2_security_info* xex2_sec_info =
+        reinterpret_cast<const xex2_security_info*>(
+            GetSecurityInfo(xex_header()));
+
+    security_info_.rsa_signature = xex2_sec_info->rsa_signature;
+    security_info_.aes_key = xex2_sec_info->aes_key;
+    security_info_.image_size = xex2_sec_info->image_size;
+    security_info_.image_flags = xex2_sec_info->image_flags;
+    security_info_.export_table = xex2_sec_info->export_table;
+    security_info_.load_address = xex2_sec_info->load_address;
+    security_info_.page_descriptor_count = xex2_sec_info->page_descriptor_count;
+    security_info_.page_descriptors = xex2_sec_info->page_descriptors;
+  }
+
   auto sec_header = xex_security_info();
 
   // Try setting our base_address based on XEX_HEADER_IMAGE_BASE_ADDRESS, fall

src/xenia/cpu/xex_module.h

@@ -43,6 +43,21 @@ class XexModule : public xe::cpu::Module {
     xe_xex2_version_t min_version;
     std::vector<ImportLibraryFn> imports;
   };
+  struct SecurityInfoContext {
+    const char* rsa_signature;
+    const char* aes_key;
+    uint32_t image_size;
+    uint32_t image_flags;
+    uint32_t export_table;
+    uint32_t load_address;
+    uint32_t page_descriptor_count;
+    const xex2_page_descriptor* page_descriptors;
+  };
+  enum XexFormat {
+    kFormatUnknown,
+    kFormatXex1,
+    kFormatXex2,
+  };
 
   XexModule(Processor* processor, kernel::KernelState* kernel_state);
   virtual ~XexModule();
@@ -51,8 +66,8 @@ class XexModule : public xe::cpu::Module {
   const xex2_header* xex_header() const {
     return reinterpret_cast<const xex2_header*>(xex_header_mem_.data());
   }
-  const xex2_security_info* xex_security_info() const {
-    return GetSecurityInfo(xex_header());
+  const SecurityInfoContext* xex_security_info() const {
+    return &security_info_;
   }
 
   uint32_t image_size() const {
@@ -112,7 +127,7 @@ class XexModule : public xe::cpu::Module {
     return GetOptHeader(key, reinterpret_cast<void**>(out_ptr));
   }
 
-  static const xex2_security_info* GetSecurityInfo(const xex2_header* header);
+  static const void* GetSecurityInfo(const xex2_header* header);
 
   const PESection* GetPESection(const char* name);
 
@@ -186,6 +201,9 @@ class XexModule : public xe::cpu::Module {
   uint32_t base_address_ = 0;
   uint32_t low_address_ = 0;
   uint32_t high_address_ = 0;
+
+  XexFormat xex_format_ = kFormatUnknown;
+  SecurityInfoContext security_info_ = {};
 };
 
 }  // namespace cpu

src/xenia/kernel/user_module.cc

@@ -135,7 +135,7 @@ X_STATUS UserModule::LoadFromMemory(const void* addr, const size_t length) {
   auto processor = kernel_state()->processor();
 
   auto magic = xe::load_and_swap<uint32_t>(addr);
-  if (magic == 'XEX2') {
+  if (magic == 'XEX2' || magic == 'XEX1') {
     module_format_ = kModuleFormatXex;
   } else if (magic == 0x7F454C46 /* 0x7F 'ELF' */) {
     module_format_ = kModuleFormatElf;

src/xenia/kernel/util/xex2_info.h

@@ -544,6 +544,23 @@ struct xex2_security_info {
   xex2_page_descriptor page_descriptors[1];  // 0x184
 };
 
+struct xex1_security_info {
+  xe::be<uint32_t> header_size;
+  xe::be<uint32_t> image_size;
+  char rsa_signature[0x100];
+  char image_digest[0x14];
+  char import_table_digest[0x14];
+  xe::be<uint32_t> load_address;
+  char aes_key[0x10];
+  char xgd2_media_id[0x10];
+  xe::be<uint32_t> region;
+  xe::be<uint32_t> image_flags;
+  xe::be<uint32_t> export_table;
+  xe::be<uint32_t> allowed_media_types;
+  xe::be<uint32_t> page_descriptor_count;
+  xex2_page_descriptor page_descriptors[1];
+};
+
 struct xex2_export_table {
   xe::be<uint32_t> magic[3];         // 0x0
   xe::be<uint32_t> modulenumber[2];  // 0xC