Signed-off-by: Isaku Yamahata <yamahata@xxxxxxxxxxxxx> --- 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 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
