diff --git a/bindings/virtio/qcom,virtio-mem.yaml b/bindings/virtio/qcom,virtio-mem.yaml
new file mode 100644
index 00000000..87aec660
--- /dev/null
+++ b/bindings/virtio/qcom,virtio-mem.yaml
@@ -0,0 +1,35 @@
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/soc/qcom/qcom,secure-buffer.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Qualcomm Technologies, Inc. Virtio-Mem bindings
+
+description: |
+  QCOM virtio mem driver supports Guest initiated memory hotplug operations
+  which transfer memory from Host to Guest.
+
+properties:
+  compatible:
+    items:
+      - const: qcom,virtio-mem
+
+  reg:
+    description:
+      Physical address and size of hotpluggable region. Must be aligned
+      to memory_block_size_bytes() - 128 Mb on arm64.
+
+  qcom,block_size:
+    description:
+      Minimum transfer size in bytes. Should be multiple of PAGE_SIZE.
+
+required:
+  - compatible
+  - qcom,block-size
+
+example:
+	virtio_mem_device {
+		compatible = "qcom,virtio-mem";
+		reg = <0x60000000 0x10000000>;
+		qcom,block_size = <0x400000>;
+	};
diff --git a/qcom/kalama-vm.dtsi b/qcom/kalama-vm.dtsi
index 40e00188..0b807655 100644
--- a/qcom/kalama-vm.dtsi
+++ b/qcom/kalama-vm.dtsi
@@ -19,7 +19,7 @@
 	};
 
 	chosen {
-		bootargs = "nokaslr log_buf_len=256K root=/dev/ram rw init=/init console=hvc0 loglevel=8";
+		bootargs = "nokaslr log_buf_len=256K root=/dev/ram rw init=/init console=hvc0 loglevel=8 memhp_default_state=online_movable";
 	};
 
 
@@ -628,6 +628,12 @@
 		qcom,support-hypervisor;
 	};
 
+	virtio_mem_device {
+		compatible = "qcom,virtio-mem";
+		/* Must be memory_block_size_bytes() aligned */
+		reg = <0x60000000 0x8000000>;
+		qcom,block-size = <0x400000>;
+	};
 };
 
 #include "msm-arm-smmu-kalama-vm.dtsi"
diff --git a/qcom/kalama.dtsi b/qcom/kalama.dtsi
index a3bf22b7..8fd58e42 100644
--- a/qcom/kalama.dtsi
+++ b/qcom/kalama.dtsi
@@ -679,6 +679,15 @@
 		mem-type = <2>;
 	};
 
+	mem_buf_cma: mem_buf_cma {
+		compatible = "shared-dma-pool";
+		alloc-ranges = <0x1 0x00000000 0xfffffffe 0xffffffff>;
+		reusable;
+		alignment = <0x0 0x400000>;
+		/* 16 Mb */
+		size = <0x0 0x1000000>;
+	};
+
 	/* global autoconfigured region for contiguous allocations */
 	system_cma: linux,cma {
 		compatible = "shared-dma-pool";
@@ -1490,6 +1499,7 @@
 		compatible = "qcom,mem-buf";
 		qcom,mem-buf-capabilities = "supplier";
 		qcom,vmid = <3>;
+		memory-region = <&mem_buf_cma>;
 	};
 
 	qcom,mem-buf-msgq {