1 files changed, 17 insertions, 0 deletions

diff --git a/include/xen/interface/platform.h b/include/xen/interface/platform.h
index 4755b5fac9c7..5e36932ab407 100644
--- a/include/xen/interface/platform.h
+++ b/include/xen/interface/platform.h
@@ -324,6 +324,22 @@ struct xenpf_cpu_ol {
 };
 DEFINE_GUEST_HANDLE_STRUCT(xenpf_cpu_ol);
 
+/*
+ * CMD 58 and 59 are reserved for cpu hotadd and memory hotadd,
+ * which are already occupied at Xen hypervisor side.
+ */
+#define XENPF_core_parking     60
+struct xenpf_core_parking {
+        /* IN variables */
+#define XEN_CORE_PARKING_SET   1
+#define XEN_CORE_PARKING_GET   2
+        uint32_t type;
+        /* IN variables:  set cpu nums expected to be idled */
+        /* OUT variables: get cpu nums actually be idled */
+        uint32_t idle_nums;
+};
+DEFINE_GUEST_HANDLE_STRUCT(xenpf_core_parking);
+
 struct xen_platform_op {
         uint32_t cmd;
         uint32_t interface_version; /* XENPF_INTERFACE_VERSION */
@@ -341,6 +357,7 @@ struct xen_platform_op {
                 struct xenpf_set_processor_pminfo set_pminfo;
                 struct xenpf_pcpuinfo          pcpu_info;
                 struct xenpf_cpu_ol            cpu_ol;
+                struct xenpf_core_parking      core_parking;
                 uint8_t                        pad[128];
         } u;
 };