diff --git a/android/config.go b/android/config.go
index b682c2e93..368e57381 100644
--- a/android/config.go
+++ b/android/config.go
@@ -1663,6 +1663,17 @@ func (c *config) ApexTrimEnabled() bool {
 	return Bool(c.productVariables.TrimmedApex)
 }
 
+func (c *config) UseSoongSystemImage() bool {
+	return Bool(c.productVariables.UseSoongSystemImage)
+}
+
+func (c *config) SoongDefinedSystemImage() string {
+	if c.UseSoongSystemImage() {
+		return String(c.productVariables.ProductSoongDefinedSystemImage)
+	}
+	return ""
+}
+
 func (c *config) EnforceSystemCertificate() bool {
 	return Bool(c.productVariables.EnforceSystemCertificate)
 }
diff --git a/android/variable.go b/android/variable.go
index b238c4a5d..e0d512d3a 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -423,6 +423,9 @@ type ProductVariables struct {
 
 	TargetFSConfigGen []string `json:",omitempty"`
 
+	UseSoongSystemImage            *bool   `json:",omitempty"`
+	ProductSoongDefinedSystemImage *string `json:",omitempty"`
+
 	EnforceProductPartitionInterface *bool `json:",omitempty"`
 
 	EnforceInterPartitionJavaSdkLibrary *bool    `json:",omitempty"`
diff --git a/filesystem/filesystem.go b/filesystem/filesystem.go
index a8f97e3b7..0b390624f 100644
--- a/filesystem/filesystem.go
+++ b/filesystem/filesystem.go
@@ -136,9 +136,6 @@ type filesystemProperties struct {
 	// Install aconfig_flags.pb file for the modules installed in this partition.
 	Gen_aconfig_flags_pb *bool
 
-	// Update the Base_dir of the $PRODUCT_OUT directory with the packaging files.
-	Update_product_out *bool
-
 	Fsverity fsverityProperties
 }
 
@@ -335,7 +332,7 @@ func (f *filesystem) copyPackagingSpecs(ctx android.ModuleContext, builder *andr
 }
 
 func (f *filesystem) copyFilesToProductOut(ctx android.ModuleContext, builder *android.RuleBuilder, rebasedDir android.OutputPath) {
-	if !proptools.Bool(f.properties.Update_product_out) {
+	if f.Name() != ctx.Config().SoongDefinedSystemImage() {
 		return
 	}
 	installPath := android.PathForModuleInPartitionInstall(ctx, f.partitionName())