[Xen-changelog] [xen-unstable] libxc: Wrapper functions for cpu online/offline

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1222096225 -3600
# Node ID df6f9fe48f1158f3c1430135e03b0ae7fc73ec23
# Parent  0c8d2e44126d2562dbc71732889051076728034b
libxc: Wrapper functions for cpu online/offline

Signed-off-by: Shan Haitao <haitao.shan@xxxxxxxxx>
---
 tools/libxc/Makefile         |    1 
 tools/libxc/xc_cpu_hotplug.c |   53 +++++++++++++++++++++++++++++++++++++++++++
 tools/libxc/xenctrl.h        |    2 +
 3 files changed, 56 insertions(+)

diff -r 0c8d2e44126d -r df6f9fe48f11 tools/libxc/Makefile
--- a/tools/libxc/Makefile      Mon Sep 22 16:07:04 2008 +0100
+++ b/tools/libxc/Makefile      Mon Sep 22 16:10:25 2008 +0100
@@ -19,6 +19,7 @@ CTRL_SRCS-y       += xc_csched.c
 CTRL_SRCS-y       += xc_csched.c
 CTRL_SRCS-y       += xc_tbuf.c
 CTRL_SRCS-y       += xc_pm.c
+CTRL_SRCS-y       += xc_cpu_hotplug.c
 CTRL_SRCS-y       += xc_resume.c
 CTRL_SRCS-$(CONFIG_X86) += xc_pagetab.c
 CTRL_SRCS-$(CONFIG_Linux) += xc_linux.c
diff -r 0c8d2e44126d -r df6f9fe48f11 tools/libxc/xc_cpu_hotplug.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxc/xc_cpu_hotplug.c      Mon Sep 22 16:10:25 2008 +0100
@@ -0,0 +1,53 @@
+/******************************************************************************
+ * xc_cpu_hotplug.c - Libxc API for Xen Physical CPU hotplug Management
+ *
+ * Copyright (c) 2008, Shan Haitao <haitao.shan@xxxxxxxxx>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ */
+
+#include "xc_private.h"
+
+int xc_cpu_online(int xc_handle, int cpu)
+{
+    DECLARE_SYSCTL;
+    int ret;
+
+    sysctl.cmd = XEN_SYSCTL_cpu_hotplug;
+    sysctl.u.cpu_hotplug.cpu = cpu;
+    sysctl.u.cpu_hotplug.op = XEN_SYSCTL_CPU_HOTPLUG_ONLINE;
+    ret = xc_sysctl(xc_handle, &sysctl);
+
+    return ret;
+}
+
+int xc_cpu_offline(int xc_handle, int cpu)
+{
+    DECLARE_SYSCTL;
+    int ret;
+
+    sysctl.cmd = XEN_SYSCTL_cpu_hotplug;
+    sysctl.u.cpu_hotplug.cpu = cpu;
+    sysctl.u.cpu_hotplug.op = XEN_SYSCTL_CPU_HOTPLUG_OFFLINE;
+    ret = xc_sysctl(xc_handle, &sysctl);
+
+    return ret;
+}
+
diff -r 0c8d2e44126d -r df6f9fe48f11 tools/libxc/xenctrl.h
--- a/tools/libxc/xenctrl.h     Mon Sep 22 16:07:04 2008 +0100
+++ b/tools/libxc/xenctrl.h     Mon Sep 22 16:10:25 2008 +0100
@@ -1156,4 +1156,6 @@ int xc_pm_get_cxstat(int xc_handle, int 
 int xc_pm_get_cxstat(int xc_handle, int cpuid, struct xc_cx_stat *cxpt);
 int xc_pm_reset_cxstat(int xc_handle, int cpuid);
 
+int xc_cpu_online(int xc_handle, int cpu);
+int xc_cpu_offline(int xc_handle, int cpu);
 #endif /* XENCTRL_H */

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