# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1261031275 0
# Node ID c9fb3c514f65ab5f2c348215fa3affa462e94556
# Parent 66e29f42247a2f5342d6b748c1e026ebf5dba74e
imported patch mem_event_tools_domctls.patch
---
tools/libxc/Makefile | 1
tools/libxc/xc_mem_event.c | 59 +++++++++++++++++++++++++++++++++++++++++++++
tools/libxc/xenctrl.h | 13 +++++++++
3 files changed, 73 insertions(+)
diff -r 66e29f42247a -r c9fb3c514f65 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
@@ -22,6 +22,7 @@ CTRL_SRCS-y += xc_cpu_hotplug.c
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-$(CONFIG_X86) += xc_pagetab.c
CTRL_SRCS-$(CONFIG_Linux) += xc_linux.c
CTRL_SRCS-$(CONFIG_SunOS) += xc_solaris.c
diff -r 66e29f42247a -r c9fb3c514f65 tools/libxc/xc_mem_event.c
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/libxc/xc_mem_event.c Thu Dec 17 06:27:55 2009 +0000
@@ -0,0 +1,59 @@
+/******************************************************************************
+ *
+ * xc_mem_event.c
+ *
+ * Interface to low-level memory event functionality.
+ *
+ * Copyright (c) 2009 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_event_control(int xc_handle, domid_t domain_id, unsigned int op,
+ unsigned int mode, void *shared_page,
+ void *ring_page, unsigned long gfn)
+{
+ DECLARE_DOMCTL;
+
+ domctl.cmd = XEN_DOMCTL_mem_event_op;
+ domctl.domain = domain_id;
+ domctl.u.mem_event_op.op = op;
+ domctl.u.mem_event_op.mode = mode;
+
+ domctl.u.mem_event_op.shared_addr = (unsigned long)shared_page;
+ domctl.u.mem_event_op.ring_addr = (unsigned long)ring_page;
+
+ domctl.u.mem_event_op.gfn = gfn;
+
+ return do_domctl(xc_handle, &domctl);
+}
+
+int xc_mem_event_enable(int xc_handle, domid_t domain_id,
+ void *shared_page, void *ring_page)
+{
+ return xc_mem_event_control(xc_handle, domain_id,
+ XEN_DOMCTL_MEM_EVENT_OP_ENABLE, 0,
+ shared_page, ring_page, INVALID_MFN);
+}
+
+int xc_mem_event_disable(int xc_handle, domid_t domain_id)
+{
+ return xc_mem_event_control(xc_handle, domain_id,
+ XEN_DOMCTL_MEM_EVENT_OP_DISABLE, 0,
+ NULL, NULL, INVALID_MFN);
+}
+
diff -r 66e29f42247a -r c9fb3c514f65 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
@@ -47,6 +47,8 @@
#define XC_PAGE_SIZE (1UL << XC_PAGE_SHIFT)
#define XC_PAGE_MASK (~(XC_PAGE_SIZE-1))
+#define INVALID_MFN (~0UL)
+
/*
* DEFINITIONS FOR CPU BARRIERS
*/
@@ -1312,4 +1314,15 @@ int xc_tmem_restore(int xc_handle, int d
int xc_tmem_restore(int xc_handle, int dom, int fd);
int xc_tmem_restore_extra(int xc_handle, int dom, int fd);
+/**
+ * mem_event operations
+ */
+int xc_mem_event_control(int xc_handle, domid_t domain_id, unsigned int op,
+ unsigned int mode, void *shared_page,
+ void *ring_page, unsigned long gfn);
+
+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);
+
#endif /* XENCTRL_H */
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