[Xen-changelog] [xen-unstable] Export page offline hypercalls to user space tools.

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

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1243861738 -3600
# Node ID 84c1f7c46444eaa33fc14fc519ebfc5f11098903
# Parent  50134a902c66d8c3d26a4bdca9257a8dfdd1c8c9
Export page offline hypercalls to user space tools.

Signed-off-by: Jiang, Yunhong <yunhong.jiang@xxxxxxxxx>
---
 tools/libxc/Makefile          |    1 
 tools/libxc/xc_offline_page.c |  100 ++++++++++++++++++++++++++++++++++++++++++
 tools/libxc/xenguest.h        |    9 +++
 3 files changed, 110 insertions(+)

diff -r 50134a902c66 -r 84c1f7c46444 tools/libxc/Makefile
--- a/tools/libxc/Makefile      Mon Jun 01 14:07:46 2009 +0100
+++ b/tools/libxc/Makefile      Mon Jun 01 14:08:58 2009 +0100
@@ -32,6 +32,7 @@ GUEST_SRCS-y :=
 GUEST_SRCS-y :=
 GUEST_SRCS-y += xg_private.c xc_suspend.c
 GUEST_SRCS-$(CONFIG_MIGRATE) += xc_domain_restore.c xc_domain_save.c
+GUEST_SRCS-y += xc_offline_page.c
 GUEST_SRCS-$(CONFIG_HVM) += xc_hvm_build.c
 
 vpath %.c ../../xen/common/libelf
diff -r 50134a902c66 -r 84c1f7c46444 tools/libxc/xc_offline_page.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxc/xc_offline_page.c     Mon Jun 01 14:08:58 2009 +0100
@@ -0,0 +1,100 @@
+/******************************************************************************
+ * xc_offline_page.c
+ *
+ * Helper functions to offline/online one page
+ *
+ * Copyright (c) 2003, K A Fraser.
+ * Copyright (c) 2009, Intel Corporation.
+ */
+
+#include <inttypes.h>
+#include <time.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <sys/time.h>
+
+#include "xc_private.h"
+#include "xc_dom.h"
+#include "xg_private.h"
+#include "xg_save_restore.h"
+
+int xc_mark_page_online(int xc, unsigned long start,
+                        unsigned long end, uint32_t *status)
+{
+    DECLARE_SYSCTL;
+    int ret = -1;
+
+    if ( !status || (end < start) )
+        return -EINVAL;
+
+    if (lock_pages(status, sizeof(uint32_t)*(end - start + 1)))
+    {
+        ERROR("Could not lock memory for xc_mark_page_online\n");
+        return -EINVAL;
+    }
+
+    sysctl.cmd = XEN_SYSCTL_page_offline_op;
+    sysctl.u.page_offline.start = start;
+    sysctl.u.page_offline.cmd = sysctl_page_online;
+    sysctl.u.page_offline.end = end;
+    set_xen_guest_handle(sysctl.u.page_offline.status, status);
+    ret = xc_sysctl(xc, &sysctl);
+
+    unlock_pages(status, sizeof(uint32_t)*(end - start + 1));
+
+    return ret;
+}
+
+int xc_mark_page_offline(int xc, unsigned long start,
+                          unsigned long end, uint32_t *status)
+{
+    DECLARE_SYSCTL;
+    int ret = -1;
+
+    if ( !status || (end < start) )
+        return -EINVAL;
+
+    if (lock_pages(status, sizeof(uint32_t)*(end - start + 1)))
+    {
+        ERROR("Could not lock memory for xc_mark_page_offline");
+        return -EINVAL;
+    }
+
+    sysctl.cmd = XEN_SYSCTL_page_offline_op;
+    sysctl.u.page_offline.start = start;
+    sysctl.u.page_offline.cmd = sysctl_page_offline;
+    sysctl.u.page_offline.end = end;
+    set_xen_guest_handle(sysctl.u.page_offline.status, status);
+    ret = xc_sysctl(xc, &sysctl);
+
+    unlock_pages(status, sizeof(uint32_t)*(end - start + 1));
+
+    return ret;
+}
+
+int xc_query_page_offline_status(int xc, unsigned long start,
+                                 unsigned long end, uint32_t *status)
+{
+    DECLARE_SYSCTL;
+    int ret = -1;
+
+    if ( !status || (end < start) )
+        return -EINVAL;
+
+    if (lock_pages(status, sizeof(uint32_t)*(end - start + 1)))
+    {
+        ERROR("Could not lock memory for xc_query_page_offline_status\n");
+        return -EINVAL;
+    }
+
+    sysctl.cmd = XEN_SYSCTL_page_offline_op;
+    sysctl.u.page_offline.start = start;
+    sysctl.u.page_offline.cmd = sysctl_query_page_offline;
+    sysctl.u.page_offline.end = end;
+    set_xen_guest_handle(sysctl.u.page_offline.status, status);
+    ret = xc_sysctl(xc, &sysctl);
+
+    unlock_pages(status, sizeof(uint32_t)*(end - start + 1));
+
+    return ret;
+}
diff -r 50134a902c66 -r 84c1f7c46444 tools/libxc/xenguest.h
--- a/tools/libxc/xenguest.h    Mon Jun 01 14:07:46 2009 +0100
+++ b/tools/libxc/xenguest.h    Mon Jun 01 14:08:58 2009 +0100
@@ -154,4 +154,13 @@ int xc_suspend_evtchn_init(int xc, int x
 
 int xc_await_suspend(int xce, int suspend_evtchn);
 
+int xc_mark_page_online(int xc, unsigned long start,
+                        unsigned long end, uint32_t *status);
+
+int xc_mark_page_offline(int xc, unsigned long start,
+                          unsigned long end, uint32_t *status);
+
+int xc_query_page_offline_status(int xc, unsigned long start,
+                                 unsigned long end, uint32_t *status);
+
 #endif /* XENGUEST_H */

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