diff --git a/common/config.gni b/common/config.gni
index afb8f0b2b2c929af78fb0a2af507f2cf73b0ebdc..21a43ba4f89a36eeb0ed60772bc9d3b05fb2ca62 100644
--- a/common/config.gni
+++ b/common/config.gni
@@ -132,4 +132,4 @@ if (flutter_prebuilt_dart_sdk) {
 # see https://github.com/flutter/flutter/issues/74322
 build_engine_artifacts =
     current_toolchain == host_toolchain ||
-    (is_linux && !is_chromeos && current_cpu != "arm") || is_mac || is_win
+    (is_linux && !is_chromeos && current_cpu != "arm") || is_mac || is_win || is_ohos
diff --git a/shell/platform/ohos/napi/platform_view_ohos_napi.cpp b/shell/platform/ohos/napi/platform_view_ohos_napi.cpp
index 6eec795900517d524e82fb5e92a25d2e223f72fd..9dd3f6b272bf10af9dc3f1f56ecd60fdeff235b2 100644
--- a/shell/platform/ohos/napi/platform_view_ohos_napi.cpp
+++ b/shell/platform/ohos/napi/platform_view_ohos_napi.cpp
@@ -693,13 +693,13 @@ napi_value PlatformViewOHOSNapi::nativeSetViewportMetrics(
   }
   LOGD("nativeSetViewportMetrics::shell_holder : %{public}ld", shell_holder);
 
-  int64_t devicePixelRatio;
-  ret = napi_get_value_int64(env, args[1], &devicePixelRatio);
+  double devicePixelRatio;
+  ret = napi_get_value_double(env, args[1], &devicePixelRatio);
   if (ret != napi_ok) {
     LOGE("nativeSetViewportMetrics napi_get_value_int64 error");
     return nullptr;
   }
-  LOGD("nativeSetViewportMetrics::devicePixelRatio : %{public}ld",
+  LOGD("nativeSetViewportMetrics::devicePixelRatio : %{public}lf",
        devicePixelRatio);
 
   int64_t physicalWidth;
diff --git a/tools/gn b/tools/gn
index 5882b343a643b1bd3f76092e915661115ef8562a..99b7b88e79303c6826e2d3c6db004a126cd310f1 100755
--- a/tools/gn
+++ b/tools/gn
@@ -343,6 +343,8 @@ def to_gn_args(args):
     gn_args['target_os'] = args.target_os
     gn_args['target_cpu'] = get_target_cpu(args)
     gn_args['dart_target_arch'] = gn_args['target_cpu']
+    if (args.target_os == 'ohos'):
+      gn_args['host_cpu'] = get_host_cpu()
 
   print("ARGS.target_os:%s-%s" % (args.target_os,gn_args['target_os'] ) )
   # We cannot cross-compile for 32 bit arm on a Windows host. We work around
@@ -451,7 +453,7 @@ def to_gn_args(args):
   else:
     gn_args['skia_use_gl'] = args.target_os != 'fuchsia'
 
-  if sys.platform == 'darwin' and args.target_os not in ['android', 'fuchsia']:
+  if sys.platform == 'darwin' and args.target_os not in ['android', 'fuchsia', 'ohos']:
     # OpenGL is deprecated on macOS > 10.11.
     # This is not necessarily needed but enabling this until we have a way to
     # build a macOS metal only shell and a gl only shell.