ntdll: Implement support for AT_ROUND_TO_PAGE flag in NtMapViewOfSection.

dlls/kernel32/tests/virtual.c

@@ -1129,7 +1129,6 @@ static void test_NtMapViewOfSection(void)
         offset.QuadPart = 0;
         status = pNtMapViewOfSection( mapping, hProcess, &ptr2, 0, 0, &offset,
                                       &size, 1, AT_ROUND_TO_PAGE, PAGE_READWRITE );
-        todo_wine
         ok( status == STATUS_CONFLICTING_ADDRESSES, "NtMapViewOfSection returned %x\n", status );
 
         /* in contrary to regular NtMapViewOfSection, only 4kb align is enforced */
@@ -1138,12 +1137,10 @@ static void test_NtMapViewOfSection(void)
         offset.QuadPart = 0;
         status = pNtMapViewOfSection( mapping, hProcess, &ptr2, 0, 0, &offset,
                                       &size, 1, AT_ROUND_TO_PAGE, PAGE_READWRITE );
-        todo_wine
         ok( status == STATUS_SUCCESS, "NtMapViewOfSection returned %x\n", status );
         ok( (char *)ptr2 == (char *)ptr + 0x1000,
             "expected address %p, got %p\n", (char *)ptr + 0x1000, ptr2 );
         status = pNtUnmapViewOfSection( hProcess, ptr2 );
-        todo_wine
         ok( !status, "NtUnmapViewOfSection failed status %x\n", status );
 
         /* the address is rounded down if not on a page boundary */
@@ -1152,13 +1149,10 @@ static void test_NtMapViewOfSection(void)
         offset.QuadPart = 0;
         status = pNtMapViewOfSection( mapping, hProcess, &ptr2, 0, 0, &offset,
                                       &size, 1, AT_ROUND_TO_PAGE, PAGE_READWRITE );
-        todo_wine
         ok( status == STATUS_SUCCESS, "NtMapViewOfSection returned %x\n", status );
-        todo_wine
         ok( (char *)ptr2 == (char *)ptr + 0x1000,
             "expected address %p, got %p\n", (char *)ptr + 0x1000, ptr2 );
         status = pNtUnmapViewOfSection( hProcess, ptr2 );
-        todo_wine
         ok( !status, "NtUnmapViewOfSection failed status %x\n", status );
 
         ptr2 = (char *)ptr + 0x2000;
@@ -1166,12 +1160,10 @@ static void test_NtMapViewOfSection(void)
         offset.QuadPart = 0;
         status = pNtMapViewOfSection( mapping, hProcess, &ptr2, 0, 0, &offset,
                                       &size, 1, AT_ROUND_TO_PAGE, PAGE_READWRITE );
-        todo_wine
         ok( status == STATUS_SUCCESS, "NtMapViewOfSection returned %x\n", status );
         ok( (char *)ptr2 == (char *)ptr + 0x2000,
             "expected address %p, got %p\n", (char *)ptr + 0x2000, ptr2 );
         status = pNtUnmapViewOfSection( hProcess, ptr2 );
-        todo_wine
         ok( !status, "NtUnmapViewOfSection failed status %x\n", status );
     }
     else

dlls/ntdll/virtual.c

@@ -2604,6 +2604,14 @@ NTSTATUS WINAPI NtMapViewOfSection( HANDLE handle, HANDLE process, PVOID *addr_p
     if (*addr_ptr && zero_bits)
         return STATUS_INVALID_PARAMETER_4;
 
+#ifndef _WIN64
+    if (!is_wow64 && (alloc_type & AT_ROUND_TO_PAGE))
+    {
+        *addr_ptr = ROUND_ADDR( *addr_ptr, page_mask );
+        mask = page_mask;
+    }
+#endif
+
     if ((offset.u.LowPart & mask) || (*addr_ptr && ((UINT_PTR)*addr_ptr & mask)))
         return STATUS_MAPPED_ALIGNMENT;