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sys/amd64/include/vmm_migration.h
- This file was added.
| /*- | |||||
| * SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
| * | |||||
| * Copyright (c) 2011 NetApp, Inc. | |||||
| * All rights reserved. | |||||
| * | |||||
| * Redistribution and use in source and binary forms, with or without | |||||
| * modification, are permitted provided that the following conditions | |||||
| * are met: | |||||
| * 1. Redistributions of source code must retain the above copyright | |||||
| * notice, this list of conditions and the following disclaimer. | |||||
| * 2. Redistributions in binary form must reproduce the above copyright | |||||
| * notice, this list of conditions and the following disclaimer in the | |||||
| * documentation and/or other materials provided with the distribution. | |||||
| * | |||||
| * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND | |||||
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |||||
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |||||
| * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE | |||||
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |||||
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |||||
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |||||
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |||||
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |||||
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |||||
| * SUCH DAMAGE. | |||||
| * | |||||
| * $FreeBSD$ | |||||
| */ | |||||
| #ifndef _VMM_MIGRATION_H_ | |||||
| #define _VMM_MIGRATION_H_ | |||||
| #define VMM_PAGE_CHUNK 10 | |||||
| enum migration_req_type { | |||||
| VMM_GET_PAGES = 0, | |||||
| VMM_SET_PAGES = 1, | |||||
| }; | |||||
| struct vmm_migration_page { | |||||
| vm_pindex_t pindex; | |||||
| uint8_t *page; | |||||
| }; | |||||
| /* | |||||
| * A bhyve guest has two memory segments: | |||||
| * - lowmem segment: mapped from 0GB to 3GB (which is lowmem_limit) | |||||
| * - highmem segment: mapped starting from 4GB | |||||
| * The object that represents a segment is identified by start and end values. | |||||
| * */ | |||||
| struct vmm_migration_segment { | |||||
| vm_offset_t start; | |||||
| vm_offset_t end; | |||||
| }; | |||||
| struct vmm_migration_pages_req { | |||||
| size_t pages_required; | |||||
| enum migration_req_type req_type; | |||||
| struct vmm_migration_segment lowmem_segment; | |||||
| struct vmm_migration_segment highmem_segment; | |||||
| struct vmm_migration_page pages[VMM_PAGE_CHUNK]; | |||||
| }; | |||||
| #endif | |||||