[PATCH 16/21] umem.h: import Linux umem.h

[Isaku Yamahata <yamahata@valinux.co.jp>]

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
---
 linux-headers/linux/umem.h |   83 ++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 83 insertions(+), 0 deletions(-)
 create mode 100644 linux-headers/linux/umem.h

diff --git a/linux-headers/linux/umem.h b/linux-headers/linux/umem.h
new file mode 100644
index 0000000..e1a8633
--- /dev/null
+++ b/linux-headers/linux/umem.h
@@ -0,0 +1,83 @@
+/*
+ * User process backed memory.
+ * This is mainly for KVM post copy.
+ *
+ * Copyright (c) 2011,
+ * National Institute of Advanced Industrial Science and Technology
+ *
+ * https://sites.google.com/site/grivonhome/quick-kvm-migration
+ * Author: Isaku Yamahata <yamahata at valinux co jp>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __LINUX_UMEM_H
+#define __LINUX_UMEM_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+#ifdef __KERNEL__
+#include <linux/compiler.h>
+#else
+#define __user
+#endif
+
+#define UMEM_ID_MAX	256
+#define UMEM_NAME_MAX	256
+
+struct umem_name {
+	char id[UMEM_ID_MAX];		/* non-zero terminated */
+	char name[UMEM_NAME_MAX];	/* non-zero terminated */
+};
+
+struct umem_list {
+	__u32 nr;
+	__u32 padding;
+	struct umem_name names[0];
+};
+
+struct umem_create {
+	__u64 size;	/* in bytes */
+	__s32 umem_fd;
+	__s32 shmem_fd;
+	__u32 async_req_max;
+	__u32 sync_req_max;
+	struct umem_name name;
+};
+
+struct umem_page_request {
+	__u64 __user *pgoffs;
+	__u32 nr;
+	__u32 padding;
+};
+
+struct umem_page_cached {
+	__u64 __user *pgoffs;
+	__u32 nr;
+	__u32 padding;
+};
+
+#define UMEMIO	0x1E
+
+/* ioctl for umem_dev fd */
+#define UMEM_DEV_CREATE_UMEM	_IOWR(UMEMIO, 0x0, struct umem_create)
+#define UMEM_DEV_LIST		_IOWR(UMEMIO, 0x1, struct umem_list)
+#define UMEM_DEV_REATTACH	_IOWR(UMEMIO, 0x2, struct umem_create)
+
+/* ioctl for umem fd */
+#define UMEM_GET_PAGE_REQUEST	_IOWR(UMEMIO, 0x10, struct umem_page_request)
+#define UMEM_MARK_PAGE_CACHED	_IOW (UMEMIO, 0x11, struct umem_page_cached)
+#define UMEM_MAKE_VMA_ANONYMOUS	_IO  (UMEMIO, 0x12)
+
+#endif /* __LINUX_UMEM_H */
-- 
1.7.1.1