diff --git a/api/maven-api-toolchain/src/main/mdo/toolchains.mdo b/api/maven-api-toolchain/src/main/mdo/toolchains.mdo
index 6a9bd87860..49c1b2f6b4 100644
--- a/api/maven-api-toolchain/src/main/mdo/toolchains.mdo
+++ b/api/maven-api-toolchain/src/main/mdo/toolchains.mdo
@@ -199,6 +199,51 @@
         </codeSegment>
       </codeSegments>
     </class>
+    <!-- /BuildProfile support -->
+    <class locationTracker="locations">
+      <name>InputLocation</name>
+      <version>1.2.0+</version>
+      <fields>
+        <!-- line, column and source fields are auto-generated by Modello -->
+      </fields>
+      <codeSegments>
+        <codeSegment>
+          <version>1.2.0+</version>
+          <code>
+
+    @Override
+    public String toString() {
+        return getLineNumber() + " : " + getColumnNumber() + ", " + getSource();
+    }
+          </code>
+        </codeSegment>
+      </codeSegments>
+    </class>
+    <class sourceTracker="source">
+      <name>InputSource</name>
+      <version>1.2.0+</version>
+      <fields>
+        <field>
+          <name>location</name>
+          <version>1.2.0+</version>
+          <type>String</type>
+          <description>
+            The path/URL of the settings definition or {@code null} if unknown.
+          </description>
+        </field>
+      </fields>
+      <codeSegments>
+        <codeSegment>
+          <version>1.2.0+</version>
+          <code>
+    @Override
+    public String toString() {
+        return getLocation();
+    }
+          </code>
+        </codeSegment>
+      </codeSegments>
+    </class>
   </classes>
 </model>
 
diff --git a/maven-api-impl/pom.xml b/maven-api-impl/pom.xml
index e0a0968cfd..7e00b5782f 100644
--- a/maven-api-impl/pom.xml
+++ b/maven-api-impl/pom.xml
@@ -196,7 +196,7 @@ under the License.
             </goals>
             <phase>generate-sources</phase>
             <configuration>
-              <version>1.1.0</version>
+              <version>1.2.0</version>
               <basedir>${project.basedir}/../api/maven-api-toolchain</basedir>
               <velocityBasedir>${project.basedir}/../src/mdo</velocityBasedir>
               <models>
@@ -212,6 +212,8 @@ under the License.
                 <param>packageModelV3=org.apache.maven.toolchain.model</param>
                 <param>packageModelV4=org.apache.maven.api.toolchain</param>
                 <param>packageToolV4=org.apache.maven.toolchain.v4</param>
+                <param>locationTracking=true</param>
+                <param>generateLocationClasses=true</param>
               </params>
             </configuration>
           </execution>
diff --git a/maven-api-impl/src/main/java/org/apache/maven/internal/impl/DefaultToolchainsXmlFactory.java b/maven-api-impl/src/main/java/org/apache/maven/internal/impl/DefaultToolchainsXmlFactory.java
index e20990bb0f..cb6f44add7 100644
--- a/maven-api-impl/src/main/java/org/apache/maven/internal/impl/DefaultToolchainsXmlFactory.java
+++ b/maven-api-impl/src/main/java/org/apache/maven/internal/impl/DefaultToolchainsXmlFactory.java
@@ -32,6 +32,7 @@ import org.apache.maven.api.services.xml.XmlReaderException;
 import org.apache.maven.api.services.xml.XmlReaderRequest;
 import org.apache.maven.api.services.xml.XmlWriterException;
 import org.apache.maven.api.services.xml.XmlWriterRequest;
+import org.apache.maven.api.toolchain.InputSource;
 import org.apache.maven.api.toolchain.PersistedToolchains;
 import org.apache.maven.toolchain.v4.MavenToolchainsStaxReader;
 import org.apache.maven.toolchain.v4.MavenToolchainsStaxWriter;
@@ -52,12 +53,16 @@ public class DefaultToolchainsXmlFactory implements ToolchainsXmlFactory {
             throw new IllegalArgumentException("reader or inputStream must be non null");
         }
         try {
+            InputSource source = null;
+            if (request.getModelId() != null || request.getLocation() != null) {
+                source = new InputSource(request.getLocation());
+            }
             MavenToolchainsStaxReader xml = new MavenToolchainsStaxReader();
             xml.setAddDefaultEntities(request.isAddDefaultEntities());
             if (reader != null) {
-                return xml.read(reader, request.isStrict());
+                return xml.read(reader, request.isStrict(), source);
             } else {
-                return xml.read(inputStream, request.isStrict());
+                return xml.read(inputStream, request.isStrict(), source);
             }
         } catch (Exception e) {
             throw new XmlReaderException("Unable to read toolchains: " + getMessage(e), getLocation(e), e);
diff --git a/maven-toolchain-builder/src/main/java/org/apache/maven/toolchain/io/DefaultToolchainsReader.java b/maven-toolchain-builder/src/main/java/org/apache/maven/toolchain/io/DefaultToolchainsReader.java
index f474b9ca56..bda71b077d 100644
--- a/maven-toolchain-builder/src/main/java/org/apache/maven/toolchain/io/DefaultToolchainsReader.java
+++ b/maven-toolchain-builder/src/main/java/org/apache/maven/toolchain/io/DefaultToolchainsReader.java
@@ -30,6 +30,7 @@ import java.nio.file.Files;
 import java.util.Map;
 import java.util.Objects;
 
+import org.apache.maven.api.toolchain.InputSource;
 import org.apache.maven.toolchain.model.PersistedToolchains;
 import org.apache.maven.toolchain.v4.MavenToolchainsStaxReader;
 
@@ -47,7 +48,8 @@ public class DefaultToolchainsReader implements ToolchainsReader {
         Objects.requireNonNull(input, "input cannot be null");
 
         try (InputStream in = Files.newInputStream(input.toPath())) {
-            return new PersistedToolchains(new MavenToolchainsStaxReader().read(in, isStrict(options)));
+            InputSource source = new InputSource(input.toString());
+            return new PersistedToolchains(new MavenToolchainsStaxReader().read(in, isStrict(options), source));
         } catch (XMLStreamException e) {
             throw new ToolchainsParseException(
                     e.getMessage(),
@@ -62,7 +64,8 @@ public class DefaultToolchainsReader implements ToolchainsReader {
         Objects.requireNonNull(input, "input cannot be null");
 
         try (Reader in = input) {
-            return new PersistedToolchains(new MavenToolchainsStaxReader().read(in, isStrict(options)));
+            InputSource source = (InputSource) options.get(InputSource.class.getName());
+            return new PersistedToolchains(new MavenToolchainsStaxReader().read(in, isStrict(options), source));
         } catch (XMLStreamException e) {
             throw new ToolchainsParseException(
                     e.getMessage(),
@@ -77,7 +80,8 @@ public class DefaultToolchainsReader implements ToolchainsReader {
         Objects.requireNonNull(input, "input cannot be null");
 
         try (InputStream in = input) {
-            return new PersistedToolchains(new MavenToolchainsStaxReader().read(in, isStrict(options)));
+            InputSource source = (InputSource) options.get(InputSource.class.getName());
+            return new PersistedToolchains(new MavenToolchainsStaxReader().read(in, isStrict(options), source));
         } catch (XMLStreamException e) {
             throw new ToolchainsParseException(
                     e.getMessage(),
diff --git a/src/mdo/reader-stax.vm b/src/mdo/reader-stax.vm
index 692bd2a8a6..0d3136d9f9 100644
--- a/src/mdo/reader-stax.vm
+++ b/src/mdo/reader-stax.vm
@@ -662,7 +662,13 @@ public class ${className} {
         #end
                     break;
       #elseif ( $field.to && $field.multiplicity == "*" && $Helper.isFlatItems( $field ) )
+        #if ( $locationTracking )
+                    ${field.name}.add(parse${field.toClass.name}(parser, strict, source));
+        #elseif ( $needXmlContext )
+                    ${field.name}.add(parse${field.toClass.name}(parser, strict, context));
+        #else
                     ${field.name}.add(parse${field.toClass.name}(parser, strict));
+        #end
                     break;
       #elseif ( $field.to && $field.multiplicity == "*" )
                     List<$field.to> ${field.name} = new ArrayList<>();