ntdll: Implement SystemEmulation* information classes.

dlls/ntdll/unix/system.c

@@ -2161,11 +2161,14 @@ NTSTATUS WINAPI NtQuerySystemInformation( SYSTEM_INFORMATION_CLASS class,
 
     switch (class)
     {
+    case SystemNativeBasicInformation:  /* 114 */
+        if (!is_win64) return STATUS_INVALID_INFO_CLASS;
+        /* fall through */
     case SystemBasicInformation:  /* 0 */
     {
         SYSTEM_BASIC_INFORMATION sbi;
 
-        virtual_get_system_info( &sbi );
+        virtual_get_system_info( &sbi, FALSE );
         len = sizeof(sbi);
         if (size == len)
         {
@@ -2659,6 +2662,37 @@ NTSTATUS WINAPI NtQuerySystemInformation( SYSTEM_INFORMATION_CLASS class,
         break;
     }
 
+    case SystemEmulationBasicInformation:  /* 62 */
+    {
+        SYSTEM_BASIC_INFORMATION sbi;
+
+        virtual_get_system_info( &sbi, !!NtCurrentTeb()->WowTebOffset );
+        len = sizeof(sbi);
+        if (size == len)
+        {
+            if (!info) ret = STATUS_ACCESS_VIOLATION;
+            else memcpy( info, &sbi, len);
+        }
+        else ret = STATUS_INFO_LENGTH_MISMATCH;
+        break;
+    }
+
+    case SystemEmulationProcessorInformation:  /* 63 */
+        if (size >= (len = sizeof(cpu_info)))
+        {
+            SYSTEM_CPU_INFORMATION cpu = cpu_info;
+            if (is_win64)
+            {
+                if (cpu_info.ProcessorArchitecture == PROCESSOR_ARCHITECTURE_AMD64)
+                    cpu.ProcessorArchitecture = PROCESSOR_ARCHITECTURE_INTEL;
+                else if (cpu_info.ProcessorArchitecture == PROCESSOR_ARCHITECTURE_ARM64)
+                    cpu.ProcessorArchitecture = PROCESSOR_ARCHITECTURE_ARM;
+            }
+            memcpy(info, &cpu, len);
+        }
+        else ret = STATUS_INFO_LENGTH_MISMATCH;
+        break;
+
     case SystemExtendedHandleInformation:  /* 64 */
     {
         struct handle_info *handle_info;

dlls/ntdll/unix/unix_private.h

@@ -198,7 +198,7 @@ extern void *anon_mmap_fixed( void *start, size_t size, int prot, int flags ) DE
 extern void *anon_mmap_alloc( size_t size, int prot ) DECLSPEC_HIDDEN;
 extern void virtual_init(void) DECLSPEC_HIDDEN;
 extern ULONG_PTR get_system_affinity_mask(void) DECLSPEC_HIDDEN;
-extern void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info ) DECLSPEC_HIDDEN;
+extern void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info, BOOL wow64 ) DECLSPEC_HIDDEN;
 extern NTSTATUS virtual_map_builtin_module( HANDLE mapping, void **module, SIZE_T *size,
                                             SECTION_IMAGE_INFORMATION *info, WORD machine, BOOL prefer_native ) DECLSPEC_HIDDEN;
 extern NTSTATUS virtual_create_builtin_view( void *module, const UNICODE_STRING *nt_name,

dlls/ntdll/unix/virtual.c

@@ -2682,7 +2682,7 @@ ULONG_PTR get_system_affinity_mask(void)
 /***********************************************************************
  *           virtual_get_system_info
  */
-void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info )
+void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info, BOOL wow64 )
 {
 #if defined(HAVE_STRUCT_SYSINFO_TOTALRAM) && defined(HAVE_STRUCT_SYSINFO_MEM_UNIT)
     struct sysinfo sinfo;
@@ -2707,9 +2707,19 @@ void virtual_get_system_info( SYSTEM_BASIC_INFORMATION *info )
     info->MmNumberOfPhysicalPages = info->MmHighestPhysicalPage - info->MmLowestPhysicalPage;
     info->AllocationGranularity   = granularity_mask + 1;
     info->LowestUserAddress       = (void *)0x10000;
-    info->HighestUserAddress      = (char *)user_space_limit - 1;
     info->ActiveProcessorsAffinityMask = get_system_affinity_mask();
     info->NumberOfProcessors      = peb->NumberOfProcessors;
+#ifdef _WIN64
+    if (wow64)
+    {
+        if (main_image_info.ImageCharacteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE)
+            info->HighestUserAddress = (char *)0xc0000000 - 1;
+        else
+            info->HighestUserAddress = (char *)0x7fff0000 - 1;
+        return;
+    }
+#endif
+    info->HighestUserAddress = (char *)user_space_limit - 1;
 }