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3dadcdc6b0
-- omit IO gap when registering MRs -- split MRs during COMPLETE_DUMP in chunks of port_attr.max_msg_sz
91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
#ifndef __UHYVE_MIGRATION_H__
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/*
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* Copyright (c) 2018, Simon Pickartz, RWTH Aachen University
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @author Simon Pickartz
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* @file tools/uhyve-migration.h
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* @brief Migration-related functions
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*/
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#define __UHYVE_MIGRATION_H__
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#include <stdbool.h>
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extern size_t guest_size;
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extern uint8_t* guest_mem;
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#define MIGRATION_PORT 1337
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typedef enum {
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MIG_MODE_COMPLETE_DUMP = 1,
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MIG_MODE_INCREMENTAL_DUMP,
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} mig_mode_t;
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typedef enum {
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MIG_TYPE_COLD = 0,
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MIG_TYPE_LIVE,
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} mig_type_t;
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const static struct {
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mig_type_t mig_type;
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const char *str;
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} mig_type_conv [] = {
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{MIG_TYPE_COLD, "cold"},
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{MIG_TYPE_LIVE, "live"},
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};
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typedef struct _mem_chunk {
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size_t size;
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uint8_t *ptr;
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} mem_chunk_t;
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typedef struct _migration_metadata {
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uint32_t ncores;
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size_t guest_size;
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uint32_t no_checkpoint;
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uint64_t elf_entry;
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bool full_checkpoint;
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} migration_metadata_t;
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void set_migration_type(const char *mig_type_str);
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mig_type_t get_migration_type(void);
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void wait_for_client(uint16_t listen_portno);
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void set_migration_target(const char *ip_str, int port);
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void connect_to_server(void);
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void close_migration_channel(void);
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int recv_data(void *buffer, size_t length);
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int send_data(void *buffer, size_t length);
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void send_guest_mem(mig_mode_t mode, bool final_dump, size_t mem_chunk_cnt, mem_chunk_t *mem_chunks);
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void recv_guest_mem(size_t mem_chunk_cnt, mem_chunk_t *mem_chunks);
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#endif /* __UHYVE_MIGRATION_H__ */
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