From: Keir Fraser <keir.fraser@citrix.com>
Date: Thu, 17 Dec 2009 06:27:55 +0000 (+0000)
Subject: libxc interface support for memory paging domctls.
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~12867
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=c0c8c01d6776b3cb2c42a6a3c82e484992dc9265;p=xen.git

libxc interface support for memory paging domctls.

Signed-off-by: Patrick Colp <Patrick.Colp@citrix.com>
---

diff --git a/tools/libxc/Makefile b/tools/libxc/Makefile
index a36b6acf36..da9b0e48ad 100644
--- a/tools/libxc/Makefile
+++ b/tools/libxc/Makefile
@@ -23,6 +23,7 @@ CTRL_SRCS-y       += xc_cpu_hotplug.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 --git a/tools/libxc/xc_mem_paging.c b/tools/libxc/xc_mem_paging.c
new file mode 100644
index 0000000000..1e9f4b2244
--- /dev/null
+++ b/tools/libxc/xc_mem_paging.c
@@ -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 --git a/tools/libxc/xenctrl.h b/tools/libxc/xenctrl.h
index 234695f791..aa237961f0 100644
--- a/tools/libxc/xenctrl.h
+++ b/tools/libxc/xenctrl.h
@@ -1325,4 +1325,11 @@ int xc_mem_event_enable(int xc_handle, domid_t domain_id,
                         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 */