f504789de5
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Lukas Straub <lukasstraub2@web.de> Message-ID: <20230613145757.10131-8-quintela@redhat.com>
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/*
|
|
* QEMU System Emulator
|
|
*
|
|
* Copyright (c) 2003-2008 Fabrice Bellard
|
|
* Copyright (c) 2011-2015 Red Hat Inc
|
|
*
|
|
* Authors:
|
|
* Juan Quintela <quintela@redhat.com>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef QEMU_MIGRATION_COMPRESS_H
|
|
#define QEMU_MIGRATION_COMPRESS_H
|
|
|
|
#include "qemu-file.h"
|
|
#include "qapi/qapi-types-migration.h"
|
|
|
|
enum CompressResult {
|
|
RES_NONE = 0,
|
|
RES_ZEROPAGE = 1,
|
|
RES_COMPRESS = 2
|
|
};
|
|
typedef enum CompressResult CompressResult;
|
|
|
|
struct CompressParam {
|
|
bool done;
|
|
bool quit;
|
|
bool trigger;
|
|
CompressResult result;
|
|
QEMUFile *file;
|
|
QemuMutex mutex;
|
|
QemuCond cond;
|
|
RAMBlock *block;
|
|
ram_addr_t offset;
|
|
|
|
/* internally used fields */
|
|
z_stream stream;
|
|
uint8_t *originbuf;
|
|
};
|
|
typedef struct CompressParam CompressParam;
|
|
|
|
void compress_threads_save_cleanup(void);
|
|
int compress_threads_save_setup(void);
|
|
|
|
void flush_compressed_data(int (send_queued_data(CompressParam *)));
|
|
int compress_page_with_multi_thread(RAMBlock *block, ram_addr_t offset,
|
|
int (send_queued_data(CompressParam *)));
|
|
|
|
int wait_for_decompress_done(void);
|
|
void compress_threads_load_cleanup(void);
|
|
int compress_threads_load_setup(QEMUFile *f);
|
|
void decompress_data_with_multi_threads(QEMUFile *f, void *host, int len);
|
|
|
|
void populate_compress(MigrationInfo *info);
|
|
uint64_t ram_compressed_pages(void);
|
|
|
|
#endif
|