diff --git a/Documentation/ABI/testing/sysfs-bus-cxl b/Documentation/ABI/testing/sysfs-bus-cxl
index ccfc7ecc61f5..7a4cacd382f9 100644
--- a/Documentation/ABI/testing/sysfs-bus-cxl
+++ b/Documentation/ABI/testing/sysfs-bus-cxl
@@ -28,6 +28,23 @@ Description:
 		Payload in the CXL-2.0 specification.
 
 
+What:		/sys/bus/cxl/devices/memX/ram/qos_class
+Date:		May, 2023
+KernelVersion:	v6.5
+Contact:	linux-cxl@vger.kernel.org
+Description:
+		(RO) For CXL host platforms that support "QoS Telemmetry"
+		this attribute conveys a comma delimited list of platform
+		specific cookies that identifies a QoS performance class
+		for the volatile partition of the CXL mem device. These
+		class-ids can be compared against a similar "qos_class"
+		published for a root decoder. While it is not required
+		that the endpoints map their local memory-class to a
+		matching platform class, mismatches are not recommended
+		and there are platform specific side-effects that may
+		result.
+
+
 What:		/sys/bus/cxl/devices/memX/pmem/size
 Date:		December, 2020
 KernelVersion:	v5.12
@@ -38,6 +55,23 @@ Description:
 		Payload in the CXL-2.0 specification.
 
 
+What:		/sys/bus/cxl/devices/memX/pmem/qos_class
+Date:		May, 2023
+KernelVersion:	v6.5
+Contact:	linux-cxl@vger.kernel.org
+Description:
+		(RO) For CXL host platforms that support "QoS Telemmetry"
+		this attribute conveys a comma delimited list of platform
+		specific cookies that identifies a QoS performance class
+		for the persistent partition of the CXL mem device. These
+		class-ids can be compared against a similar "qos_class"
+		published for a root decoder. While it is not required
+		that the endpoints map their local memory-class to a
+		matching platform class, mismatches are not recommended
+		and there are platform specific side-effects that may
+		result.
+
+
 What:		/sys/bus/cxl/devices/memX/serial
 Date:		January, 2022
 KernelVersion:	v5.18
diff --git a/drivers/cxl/core/memdev.c b/drivers/cxl/core/memdev.c
index 057a43267290..9366257e3183 100644
--- a/drivers/cxl/core/memdev.c
+++ b/drivers/cxl/core/memdev.c
@@ -77,6 +77,32 @@ static ssize_t ram_size_show(struct device *dev, struct device_attribute *attr,
 static struct device_attribute dev_attr_ram_size =
 	__ATTR(size, 0444, ram_size_show, NULL);
 
+static ssize_t ram_qos_class_show(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	struct cxl_memdev *cxlmd = to_cxl_memdev(dev);
+	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct qos_class *qos_class = cxlds->ram_qos_class;
+	int count, i;
+
+	if (!qos_class)
+		return 0;
+
+	for (i = 0, count = 0; i < qos_class->nr; i++) {
+		count += sysfs_emit_at(buf, count, "%d",
+				       qos_class->entries[i]);
+		if (i + 1 == qos_class->nr)
+			count += sysfs_emit_at(buf, count, "\n");
+		else
+			count += sysfs_emit_at(buf, count, ", ");
+	}
+
+	return count;
+}
+
+static struct device_attribute dev_attr_ram_qos_class =
+	__ATTR(qos_class, 0444, ram_qos_class_show, NULL);
+
 static ssize_t pmem_size_show(struct device *dev, struct device_attribute *attr,
 			      char *buf)
 {
@@ -90,6 +116,33 @@ static ssize_t pmem_size_show(struct device *dev, struct device_attribute *attr,
 static struct device_attribute dev_attr_pmem_size =
 	__ATTR(size, 0444, pmem_size_show, NULL);
 
+static ssize_t pmem_qos_class_show(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct cxl_memdev *cxlmd = to_cxl_memdev(dev);
+	struct cxl_dev_state *cxlds = cxlmd->cxlds;
+	struct qos_class *qos_class = cxlds->pmem_qos_class;
+	int count, i;
+
+	if (!qos_class)
+		return 0;
+
+	for (i = 0, count = 0; i < qos_class->nr; i++) {
+		count += sysfs_emit_at(buf, count, "%d",
+				       qos_class->entries[i]);
+
+		if (i + 1 == qos_class->nr)
+			count += sysfs_emit_at(buf, count, "\n");
+		else
+			count += sysfs_emit_at(buf, count, ", ");
+	}
+
+	return count;
+}
+
+static struct device_attribute dev_attr_pmem_qos_class =
+	__ATTR(qos_class, 0444, pmem_qos_class_show, NULL);
+
 static ssize_t serial_show(struct device *dev, struct device_attribute *attr,
 			   char *buf)
 {
@@ -344,11 +397,13 @@ static struct attribute *cxl_memdev_attributes[] = {
 
 static struct attribute *cxl_memdev_pmem_attributes[] = {
 	&dev_attr_pmem_size.attr,
+	&dev_attr_pmem_qos_class.attr,
 	NULL,
 };
 
 static struct attribute *cxl_memdev_ram_attributes[] = {
 	&dev_attr_ram_size.attr,
+	&dev_attr_ram_qos_class.attr,
 	NULL,
 };
 
