+# HV parameter names (global namespace)
+HV_BOOT_ORDER = "boot_order"
+HV_CDROM_IMAGE_PATH = "cdrom_image_path"
+HV_NIC_TYPE = "nic_type"
+HV_DISK_TYPE = "disk_type"
+HV_VNC_BIND_ADDRESS = "vnc_bind_address"
+HV_ACPI = "acpi"
+HV_PAE = "pae"
+HV_KERNEL_PATH = "kernel_path"
+HV_INITRD_PATH = "initrd_path"
+
+HVS_PARAMETERS = frozenset([
+ HV_BOOT_ORDER,
+ HV_CDROM_IMAGE_PATH,
+ HV_NIC_TYPE,
+ HV_DISK_TYPE,
+ HV_VNC_BIND_ADDRESS,
+ HV_ACPI,
+ HV_PAE,
+ HV_KERNEL_PATH,
+ HV_INITRD_PATH,
+ ])
+
+# BE parameter names
+BE_MEMORY = "memory"
+BE_VCPUS = "vcpus"
+BE_AUTO_BALANCE = "auto_balance"
+
+BES_PARAMETERS = frozenset([
+ BE_MEMORY,
+ BE_VCPUS,
+ BE_AUTO_BALANCE,
+ ])
+
+# BE GROUP
+BEGR_DEFAULT = "default"
+