diff --git a/gns3server/modules/qemu/qemu_vm.py b/gns3server/modules/qemu/qemu_vm.py
index ecdcbd22..026e2a13 100644
--- a/gns3server/modules/qemu/qemu_vm.py
+++ b/gns3server/modules/qemu/qemu_vm.py
@@ -97,6 +97,7 @@ class QemuVM(BaseVM):
         self._mac_address = ""
         self._options = ""
         self._ram = 256
+        self._cpus = 1
         self._ethernet_adapters = []
         self._adapter_type = "e1000"
         self._initrd = ""
@@ -602,6 +603,27 @@ class QemuVM(BaseVM):
         log.info('QEMU VM "{name}" [{id}] has set the RAM to {ram}'.format(name=self._name, id=self._id, ram=ram))
         self._ram = ram
 
+    @property
+    def cpus(self):
+        """
+        Returns the number of vCPUs this QEMU VM.
+
+        :returns: number of vCPUs.
+        """
+
+        return self._cpus
+
+    @cpus.setter
+    def cpus(self, cpus):
+        """
+        Sets the number of vCPUs this QEMU VM.
+
+        :param cpus: number of vCPUs.
+        """
+
+        log.info('QEMU VM "{name}" [{id}] has set the number of vCPUs to {cpus}'.format(name=self._name, id=self._id, cpus=cpus))
+        self._cpus = cpus
+
     @property
     def options(self):
         """
@@ -1344,6 +1366,7 @@ class QemuVM(BaseVM):
         command = [self.qemu_path]
         command.extend(["-name", self._name])
         command.extend(["-m", str(self._ram)])
+        command.extend(["-smp", "cpus={}".format(self._cpus)])
         if sys.platform.startswith("linux") and self.manager.config.get_section_config("Qemu").getboolean("enable_kvm", True) \
                 and "-no-kvm" not in self._options:
             if not os.path.exists("/dev/kvm"):
diff --git a/gns3server/schemas/qemu.py b/gns3server/schemas/qemu.py
index c335f35c..0eb8e54b 100644
--- a/gns3server/schemas/qemu.py
+++ b/gns3server/schemas/qemu.py
@@ -121,6 +121,12 @@ QEMU_CREATE_SCHEMA = {
             "description": "amount of RAM in MB",
             "type": ["integer", "null"]
         },
+        "cpus": {
+            "description": "number of vCPUs",
+            "type": ["integer", "null"],
+            "minimum": 1,
+            "maximum": 255,
+        },
         "adapters": {
             "description": "number of adapters",
             "type": ["integer", "null"],
@@ -284,6 +290,12 @@ QEMU_UPDATE_SCHEMA = {
             "description": "amount of RAM in MB",
             "type": ["integer", "null"]
         },
+        "cpus": {
+            "description": "number of vCPUs",
+            "type": ["integer", "null"],
+            "minimum": 1,
+            "maximum": 255,
+        },
         "adapters": {
             "description": "number of adapters",
             "type": ["integer", "null"],
@@ -450,6 +462,12 @@ QEMU_OBJECT_SCHEMA = {
             "description": "amount of RAM in MB",
             "type": "integer"
         },
+        "cpus": {
+            "description": "number of vCPUs",
+            "type": ["integer", "null"],
+            "minimum": 1,
+            "maximum": 255,
+        },
         "adapters": {
             "description": "number of adapters",
             "type": "integer",
@@ -529,7 +547,7 @@ QEMU_OBJECT_SCHEMA = {
     "required": ["vm_id", "project_id", "name", "qemu_path", "platform", "console_type", "hda_disk_image", "hdb_disk_image",
                  "hdc_disk_image", "hdd_disk_image", "hda_disk_image_md5sum", "hdb_disk_image_md5sum",
                  "hdc_disk_image_md5sum", "hdd_disk_image_md5sum", "hda_disk_interface", "hdb_disk_interface", "hdc_disk_interface",
-                 "hdd_disk_interface", "cdrom_image", "cdrom_image_md5sum", "boot_priority", "ram", "adapters", "adapter_type",
+                 "hdd_disk_interface", "cdrom_image", "cdrom_image_md5sum", "boot_priority", "ram", "cpus", "adapters", "adapter_type",
                  "mac_address", "console", "initrd", "kernel_image", "initrd_md5sum", "kernel_image_md5sum", "kernel_command_line",
                  "legacy_networking", "acpi_shutdown", "cpu_throttling", "process_priority", "options", "vm_directory"]
 }