[Xen-changelog] [xen-unstable] libxc interface support for memory paging domctls.

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

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1261031275 0
# Node ID 0b56bc4f3b21f37df8b3422da9078442492d9fef
# Parent  5d2f68eab8dc504b91ee5876cfaf1dca6c8d636c
libxc interface support for memory paging domctls.

Signed-off-by: Patrick Colp <Patrick.Colp@xxxxxxxxxx>
---
 tools/libxc/Makefile        |    1 
 tools/libxc/xc_mem_paging.c |   68 ++++++++++++++++++++++++++++++++++++++++++++
 tools/libxc/xenctrl.h       |    7 ++++
 3 files changed, 76 insertions(+)

diff -r 5d2f68eab8dc -r 0b56bc4f3b21 tools/libxc/Makefile
--- a/tools/libxc/Makefile      Thu Dec 17 06:27:55 2009 +0000
+++ b/tools/libxc/Makefile      Thu Dec 17 06:27:55 2009 +0000
@@ -23,6 +23,7 @@ CTRL_SRCS-y       += xc_resume.c
 CTRL_SRCS-y       += xc_resume.c
 CTRL_SRCS-y       += xc_tmem.c
 CTRL_SRCS-y       += xc_mem_event.c
+CTRL_SRCS-y       += xc_mem_paging.c
 CTRL_SRCS-$(CONFIG_X86) += xc_pagetab.c
 CTRL_SRCS-$(CONFIG_Linux) += xc_linux.c
 CTRL_SRCS-$(CONFIG_SunOS) += xc_solaris.c
diff -r 5d2f68eab8dc -r 0b56bc4f3b21 tools/libxc/xc_mem_paging.c
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxc/xc_mem_paging.c       Thu Dec 17 06:27:55 2009 +0000
@@ -0,0 +1,68 @@
+/******************************************************************************
+ *
+ * tools/libxc/xc_mem_paging.c
+ *
+ * Interface to low-level memory paging functionality.
+ *
+ * Copyright (c) 2009 by Citrix (R&D) Ltd. (Patrick Colp)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+
+#include "xc_private.h"
+
+
+int xc_mem_paging_nominate(int xc_handle, domid_t domain_id, unsigned long gfn)
+{
+    return xc_mem_event_control(xc_handle, domain_id,
+                                XEN_DOMCTL_MEM_EVENT_OP_PAGING_NOMINATE,
+                                XEN_DOMCTL_MEM_EVENT_OP_PAGING, NULL, NULL,
+                                gfn);
+}
+
+int xc_mem_paging_evict(int xc_handle, domid_t domain_id, unsigned long gfn)
+{
+    return xc_mem_event_control(xc_handle, domain_id,
+                                XEN_DOMCTL_MEM_EVENT_OP_PAGING_EVICT,
+                                XEN_DOMCTL_MEM_EVENT_OP_PAGING, NULL, NULL,
+                                gfn);
+}
+
+int xc_mem_paging_prep(int xc_handle, domid_t domain_id, unsigned long gfn)
+{
+    return xc_mem_event_control(xc_handle, domain_id,
+                                XEN_DOMCTL_MEM_EVENT_OP_PAGING_PREP,
+                                XEN_DOMCTL_MEM_EVENT_OP_PAGING, NULL, NULL,
+                                gfn);
+}
+
+int xc_mem_paging_resume(int xc_handle, domid_t domain_id, unsigned long gfn)
+{
+    return xc_mem_event_control(xc_handle, domain_id,
+                                XEN_DOMCTL_MEM_EVENT_OP_PAGING_RESUME,
+                                XEN_DOMCTL_MEM_EVENT_OP_PAGING, NULL, NULL,
+                                gfn);
+}
+
+
+/*
+ * Local variables:
+ * mode: C
+ * c-set-style: "BSD"
+ * c-basic-offset: 4
+ * indent-tabs-mode: nil
+ * End: 
+ */
diff -r 5d2f68eab8dc -r 0b56bc4f3b21 tools/libxc/xenctrl.h
--- a/tools/libxc/xenctrl.h     Thu Dec 17 06:27:55 2009 +0000
+++ b/tools/libxc/xenctrl.h     Thu Dec 17 06:27:55 2009 +0000
@@ -1325,4 +1325,11 @@ int xc_mem_event_enable(int xc_handle, d
                         void *shared_page, void *ring_page);
 int xc_mem_event_disable(int xc_handle, domid_t domain_id);
 
+int xc_mem_paging_nominate(int xc_handle, domid_t domain_id,
+                           unsigned long gfn);
+int xc_mem_paging_evict(int xc_handle, domid_t domain_id, unsigned long gfn);
+int xc_mem_paging_prep(int xc_handle, domid_t domain_id, unsigned long gfn);
+int xc_mem_paging_resume(int xc_handle, domid_t domain_id,
+                         unsigned long gfn);
+
 #endif /* XENCTRL_H */

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