Changeset View
Changeset View
Standalone View
Standalone View
usr.sbin/bhyve/migration.h
- This file was added.
| /*- | |||||
| * SPDX-License-Identifier: BSD-2-Clause-FreeBSD | |||||
| * | |||||
| * Copyright (c) 2017-2020 Elena Mihailescu | |||||
| * Copyright (c) 2017-2020 Darius Mihai | |||||
| * Copyright (c) 2017-2020 Mihai Carabas | |||||
| * All rights reserved. | |||||
| * The migration feature was developed under sponsorships | |||||
| * from Matthew Grooms. | |||||
| * | |||||
| * 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 _BHYVE_MIGRATION_ | |||||
| #define _BHYVE_MIGRATION_ | |||||
| #include <machine/vmm_dev.h> | |||||
| #include <vmmapi.h> | |||||
| #include "snapshot.h" | |||||
| struct vmctx; | |||||
| int receive_vm_migration(struct vmctx *ctx, char *migration_data); | |||||
| /* Warm Migration */ | |||||
| #define MAX_DEV_NAME_LEN 64 | |||||
| #define MAX_IP_LEN 64 | |||||
| #define MAX_SPEC_LEN 256 | |||||
| #define MIGRATION_SPECS_OK 0 | |||||
| #define MIGRATION_SPECS_NOT_OK 1 | |||||
| #define NO_KERN_STRUCT -1 | |||||
| enum migration_transfer_req { | |||||
| MIGRATION_SEND_REQ = 0, | |||||
| MIGRATION_RECV_REQ = 1 | |||||
| }; | |||||
| enum message_types { | |||||
| MESSAGE_TYPE_SPECS = 1, | |||||
| MESSAGE_TYPE_METADATA = 2, | |||||
| MESSAGE_TYPE_RAM = 3, | |||||
| MESSAGE_TYPE_KERN = 4, | |||||
| MESSAGE_TYPE_DEV = 5, | |||||
| MESSAGE_TYPE_UNKNOWN = 8, | |||||
| }; | |||||
| struct __attribute__((packed)) migration_message_type { | |||||
jrtc27: This seems unnecessary. You're using size_t in these so it's architecture-dependent, at which… | |||||
| size_t len; | |||||
| unsigned int type; /* enum message_type */ | |||||
| unsigned int req_type; /* enum snapshot_req */ | |||||
| char name[MAX_DEV_NAME_LEN]; | |||||
| }; | |||||
| struct __attribute__((packed)) migration_system_specs { | |||||
| char hw_machine[MAX_SPEC_LEN]; | |||||
| char hw_model[MAX_SPEC_LEN]; | |||||
| size_t hw_pagesize; | |||||
| }; | |||||
jrtc27Unsubmitted Not Done Inline ActionsIndentation for members is inconsistent jrtc27: Indentation for members is inconsistent | |||||
| int vm_send_migrate_req(struct vmctx *ctx, struct migrate_req req, bool live); | |||||
| int vm_recv_migrate_req(struct vmctx *ctx, struct migrate_req req); | |||||
| #endif | |||||
This seems unnecessary. You're using size_t in these so it's architecture-dependent, at which point the ABI is already forced to match (and that's implied anyway by the fact you're migrating VMs unless you're doing strange things...).