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-rw-r--r--include/migration/block.h23
-rw-r--r--include/migration/migration.h207
-rw-r--r--include/migration/page_cache.h86
-rw-r--r--include/migration/qemu-file.h322
-rw-r--r--include/migration/vmstate.h853
5 files changed, 1491 insertions, 0 deletions
diff --git a/include/migration/block.h b/include/migration/block.h
new file mode 100644
index 00000000..ffa8ac0b
--- /dev/null
+++ b/include/migration/block.h
@@ -0,0 +1,23 @@
+/*
+ * QEMU live block migration
+ *
+ * Copyright IBM, Corp. 2009
+ *
+ * Authors:
+ * Liran Schour <lirans@il.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef BLOCK_MIGRATION_H
+#define BLOCK_MIGRATION_H
+
+void blk_mig_init(void);
+int blk_mig_active(void);
+uint64_t blk_mig_bytes_transferred(void);
+uint64_t blk_mig_bytes_remaining(void);
+uint64_t blk_mig_bytes_total(void);
+
+#endif /* BLOCK_MIGRATION_H */
diff --git a/include/migration/migration.h b/include/migration/migration.h
new file mode 100644
index 00000000..83346210
--- /dev/null
+++ b/include/migration/migration.h
@@ -0,0 +1,207 @@
+/*
+ * QEMU live migration
+ *
+ * Copyright IBM, Corp. 2008
+ *
+ * Authors:
+ * Anthony Liguori <aliguori@us.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef QEMU_MIGRATION_H
+#define QEMU_MIGRATION_H
+
+#include "qapi/qmp/qdict.h"
+#include "qemu-common.h"
+#include "qemu/thread.h"
+#include "qemu/notify.h"
+#include "qapi/error.h"
+#include "migration/vmstate.h"
+#include "qapi-types.h"
+#include "exec/cpu-common.h"
+
+#define QEMU_VM_FILE_MAGIC 0x5145564d
+#define QEMU_VM_FILE_VERSION_COMPAT 0x00000002
+#define QEMU_VM_FILE_VERSION 0x00000003
+
+#define QEMU_VM_EOF 0x00
+#define QEMU_VM_SECTION_START 0x01
+#define QEMU_VM_SECTION_PART 0x02
+#define QEMU_VM_SECTION_END 0x03
+#define QEMU_VM_SECTION_FULL 0x04
+#define QEMU_VM_SUBSECTION 0x05
+#define QEMU_VM_VMDESCRIPTION 0x06
+#define QEMU_VM_CONFIGURATION 0x07
+#define QEMU_VM_SECTION_FOOTER 0x7e
+
+struct MigrationParams {
+ bool blk;
+ bool shared;
+};
+
+typedef struct MigrationState MigrationState;
+
+typedef QLIST_HEAD(, LoadStateEntry) LoadStateEntry_Head;
+
+/* State for the incoming migration */
+struct MigrationIncomingState {
+ QEMUFile *file;
+
+ /* See savevm.c */
+ LoadStateEntry_Head loadvm_handlers;
+};
+
+MigrationIncomingState *migration_incoming_get_current(void);
+MigrationIncomingState *migration_incoming_state_new(QEMUFile *f);
+void migration_incoming_state_destroy(void);
+
+struct MigrationState
+{
+ int64_t bandwidth_limit;
+ size_t bytes_xfer;
+ size_t xfer_limit;
+ QemuThread thread;
+ QEMUBH *cleanup_bh;
+ QEMUFile *file;
+ int parameters[MIGRATION_PARAMETER_MAX];
+
+ int state;
+ MigrationParams params;
+ double mbps;
+ int64_t total_time;
+ int64_t downtime;
+ int64_t expected_downtime;
+ int64_t dirty_pages_rate;
+ int64_t dirty_bytes_rate;
+ bool enabled_capabilities[MIGRATION_CAPABILITY_MAX];
+ int64_t xbzrle_cache_size;
+ int64_t setup_time;
+ int64_t dirty_sync_count;
+};
+
+void process_incoming_migration(QEMUFile *f);
+
+void qemu_start_incoming_migration(const char *uri, Error **errp);
+
+uint64_t migrate_max_downtime(void);
+
+void exec_start_incoming_migration(const char *host_port, Error **errp);
+
+void exec_start_outgoing_migration(MigrationState *s, const char *host_port, Error **errp);
+
+void tcp_start_incoming_migration(const char *host_port, Error **errp);
+
+void tcp_start_outgoing_migration(MigrationState *s, const char *host_port, Error **errp);
+
+void unix_start_incoming_migration(const char *path, Error **errp);
+
+void unix_start_outgoing_migration(MigrationState *s, const char *path, Error **errp);
+
+void fd_start_incoming_migration(const char *path, Error **errp);
+
+void fd_start_outgoing_migration(MigrationState *s, const char *fdname, Error **errp);
+
+void rdma_start_outgoing_migration(void *opaque, const char *host_port, Error **errp);
+
+void rdma_start_incoming_migration(const char *host_port, Error **errp);
+
+void migrate_fd_error(MigrationState *s);
+
+void migrate_fd_connect(MigrationState *s);
+
+int migrate_fd_close(MigrationState *s);
+
+void add_migration_state_change_notifier(Notifier *notify);
+void remove_migration_state_change_notifier(Notifier *notify);
+bool migration_in_setup(MigrationState *);
+bool migration_has_finished(MigrationState *);
+bool migration_has_failed(MigrationState *);
+MigrationState *migrate_get_current(void);
+
+void migrate_compress_threads_create(void);
+void migrate_compress_threads_join(void);
+void migrate_decompress_threads_create(void);
+void migrate_decompress_threads_join(void);
+uint64_t ram_bytes_remaining(void);
+uint64_t ram_bytes_transferred(void);
+uint64_t ram_bytes_total(void);
+void free_xbzrle_decoded_buf(void);
+
+void acct_update_position(QEMUFile *f, size_t size, bool zero);
+
+uint64_t dup_mig_bytes_transferred(void);
+uint64_t dup_mig_pages_transferred(void);
+uint64_t skipped_mig_bytes_transferred(void);
+uint64_t skipped_mig_pages_transferred(void);
+uint64_t norm_mig_bytes_transferred(void);
+uint64_t norm_mig_pages_transferred(void);
+uint64_t xbzrle_mig_bytes_transferred(void);
+uint64_t xbzrle_mig_pages_transferred(void);
+uint64_t xbzrle_mig_pages_overflow(void);
+uint64_t xbzrle_mig_pages_cache_miss(void);
+double xbzrle_mig_cache_miss_rate(void);
+
+void ram_handle_compressed(void *host, uint8_t ch, uint64_t size);
+
+/**
+ * @migrate_add_blocker - prevent migration from proceeding
+ *
+ * @reason - an error to be returned whenever migration is attempted
+ */
+void migrate_add_blocker(Error *reason);
+
+/**
+ * @migrate_del_blocker - remove a blocking error from migration
+ *
+ * @reason - the error blocking migration
+ */
+void migrate_del_blocker(Error *reason);
+
+bool migrate_zero_blocks(void);
+
+bool migrate_auto_converge(void);
+
+int xbzrle_encode_buffer(uint8_t *old_buf, uint8_t *new_buf, int slen,
+ uint8_t *dst, int dlen);
+int xbzrle_decode_buffer(uint8_t *src, int slen, uint8_t *dst, int dlen);
+
+int migrate_use_xbzrle(void);
+int64_t migrate_xbzrle_cache_size(void);
+
+int64_t xbzrle_cache_resize(int64_t new_size);
+
+bool migrate_use_compression(void);
+int migrate_compress_level(void);
+int migrate_compress_threads(void);
+int migrate_decompress_threads(void);
+bool migrate_use_events(void);
+
+void ram_control_before_iterate(QEMUFile *f, uint64_t flags);
+void ram_control_after_iterate(QEMUFile *f, uint64_t flags);
+void ram_control_load_hook(QEMUFile *f, uint64_t flags, void *data);
+
+/* Whenever this is found in the data stream, the flags
+ * will be passed to ram_control_load_hook in the incoming-migration
+ * side. This lets before_ram_iterate/after_ram_iterate add
+ * transport-specific sections to the RAM migration data.
+ */
+#define RAM_SAVE_FLAG_HOOK 0x80
+
+#define RAM_SAVE_CONTROL_NOT_SUPP -1000
+#define RAM_SAVE_CONTROL_DELAYED -2000
+
+size_t ram_control_save_page(QEMUFile *f, ram_addr_t block_offset,
+ ram_addr_t offset, size_t size,
+ uint64_t *bytes_sent);
+
+void ram_mig_init(void);
+void savevm_skip_section_footers(void);
+void register_global_state(void);
+void global_state_set_optional(void);
+void savevm_skip_configuration(void);
+int global_state_store(void);
+void global_state_store_running(void);
+#endif
diff --git a/include/migration/page_cache.h b/include/migration/page_cache.h
new file mode 100644
index 00000000..10ed5327
--- /dev/null
+++ b/include/migration/page_cache.h
@@ -0,0 +1,86 @@
+/*
+ * Page cache for QEMU
+ * The cache is base on a hash of the page address
+ *
+ * Copyright 2012 Red Hat, Inc. and/or its affiliates
+ *
+ * Authors:
+ * Orit Wasserman <owasserm@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ *
+ */
+
+#ifndef PAGE_CACHE_H
+#define PAGE_CACHE_H
+
+/* Page cache for storing guest pages */
+typedef struct PageCache PageCache;
+
+/**
+ * cache_init: Initialize the page cache
+ *
+ *
+ * Returns new allocated cache or NULL on error
+ *
+ * @cache pointer to the PageCache struct
+ * @num_pages: cache maximal number of cached pages
+ * @page_size: cache page size
+ */
+PageCache *cache_init(int64_t num_pages, unsigned int page_size);
+
+/**
+ * cache_fini: free all cache resources
+ * @cache pointer to the PageCache struct
+ */
+void cache_fini(PageCache *cache);
+
+/**
+ * cache_is_cached: Checks to see if the page is cached
+ *
+ * Returns %true if page is cached
+ *
+ * @cache pointer to the PageCache struct
+ * @addr: page addr
+ * @current_age: current bitmap generation
+ */
+bool cache_is_cached(const PageCache *cache, uint64_t addr,
+ uint64_t current_age);
+
+/**
+ * get_cached_data: Get the data cached for an addr
+ *
+ * Returns pointer to the data cached or NULL if not cached
+ *
+ * @cache pointer to the PageCache struct
+ * @addr: page addr
+ */
+uint8_t *get_cached_data(const PageCache *cache, uint64_t addr);
+
+/**
+ * cache_insert: insert the page into the cache. the page cache
+ * will dup the data on insert. the previous value will be overwritten
+ *
+ * Returns -1 when the page isn't inserted into cache
+ *
+ * @cache pointer to the PageCache struct
+ * @addr: page address
+ * @pdata: pointer to the page
+ * @current_age: current bitmap generation
+ */
+int cache_insert(PageCache *cache, uint64_t addr, const uint8_t *pdata,
+ uint64_t current_age);
+
+/**
+ * cache_resize: resize the page cache. In case of size reduction the extra
+ * pages will be freed
+ *
+ * Returns -1 on error new cache size on success
+ *
+ * @cache pointer to the PageCache struct
+ * @num_pages: new page cache size (in pages)
+ */
+int64_t cache_resize(PageCache *cache, int64_t num_pages);
+
+#endif
diff --git a/include/migration/qemu-file.h b/include/migration/qemu-file.h
new file mode 100644
index 00000000..ea49f33f
--- /dev/null
+++ b/include/migration/qemu-file.h
@@ -0,0 +1,322 @@
+/*
+ * QEMU System Emulator
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ *
+ * 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_FILE_H
+#define QEMU_FILE_H 1
+#include "exec/cpu-common.h"
+
+#include <stdint.h>
+
+/* This function writes a chunk of data to a file at the given position.
+ * The pos argument can be ignored if the file is only being used for
+ * streaming. The handler should try to write all of the data it can.
+ */
+typedef int (QEMUFilePutBufferFunc)(void *opaque, const uint8_t *buf,
+ int64_t pos, int size);
+
+/* Read a chunk of data from a file at the given position. The pos argument
+ * can be ignored if the file is only be used for streaming. The number of
+ * bytes actually read should be returned.
+ */
+typedef int (QEMUFileGetBufferFunc)(void *opaque, uint8_t *buf,
+ int64_t pos, int size);
+
+/* Close a file
+ *
+ * Return negative error number on error, 0 or positive value on success.
+ *
+ * The meaning of return value on success depends on the specific back-end being
+ * used.
+ */
+typedef int (QEMUFileCloseFunc)(void *opaque);
+
+/* Called to return the OS file descriptor associated to the QEMUFile.
+ */
+typedef int (QEMUFileGetFD)(void *opaque);
+
+/*
+ * This function writes an iovec to file.
+ */
+typedef ssize_t (QEMUFileWritevBufferFunc)(void *opaque, struct iovec *iov,
+ int iovcnt, int64_t pos);
+
+/*
+ * This function provides hooks around different
+ * stages of RAM migration.
+ * 'opaque' is the backend specific data in QEMUFile
+ * 'data' is call specific data associated with the 'flags' value
+ */
+typedef int (QEMURamHookFunc)(QEMUFile *f, void *opaque, uint64_t flags,
+ void *data);
+
+/*
+ * Constants used by ram_control_* hooks
+ */
+#define RAM_CONTROL_SETUP 0
+#define RAM_CONTROL_ROUND 1
+#define RAM_CONTROL_HOOK 2
+#define RAM_CONTROL_FINISH 3
+#define RAM_CONTROL_BLOCK_REG 4
+
+/*
+ * This function allows override of where the RAM page
+ * is saved (such as RDMA, for example.)
+ */
+typedef size_t (QEMURamSaveFunc)(QEMUFile *f, void *opaque,
+ ram_addr_t block_offset,
+ ram_addr_t offset,
+ size_t size,
+ uint64_t *bytes_sent);
+
+/*
+ * Stop any read or write (depending on flags) on the underlying
+ * transport on the QEMUFile.
+ * Existing blocking reads/writes must be woken
+ * Returns 0 on success, -err on error
+ */
+typedef int (QEMUFileShutdownFunc)(void *opaque, bool rd, bool wr);
+
+typedef struct QEMUFileOps {
+ QEMUFilePutBufferFunc *put_buffer;
+ QEMUFileGetBufferFunc *get_buffer;
+ QEMUFileCloseFunc *close;
+ QEMUFileGetFD *get_fd;
+ QEMUFileWritevBufferFunc *writev_buffer;
+ QEMURamHookFunc *before_ram_iterate;
+ QEMURamHookFunc *after_ram_iterate;
+ QEMURamHookFunc *hook_ram_load;
+ QEMURamSaveFunc *save_page;
+ QEMUFileShutdownFunc *shut_down;
+} QEMUFileOps;
+
+struct QEMUSizedBuffer {
+ struct iovec *iov;
+ size_t n_iov;
+ size_t size; /* total allocated size in all iov's */
+ size_t used; /* number of used bytes */
+};
+
+QEMUFile *qemu_fopen_ops(void *opaque, const QEMUFileOps *ops);
+QEMUFile *qemu_fopen(const char *filename, const char *mode);
+QEMUFile *qemu_fdopen(int fd, const char *mode);
+QEMUFile *qemu_fopen_socket(int fd, const char *mode);
+QEMUFile *qemu_popen_cmd(const char *command, const char *mode);
+QEMUFile *qemu_bufopen(const char *mode, QEMUSizedBuffer *input);
+int qemu_get_fd(QEMUFile *f);
+int qemu_fclose(QEMUFile *f);
+int64_t qemu_ftell(QEMUFile *f);
+int64_t qemu_ftell_fast(QEMUFile *f);
+void qemu_put_buffer(QEMUFile *f, const uint8_t *buf, int size);
+void qemu_put_byte(QEMUFile *f, int v);
+/*
+ * put_buffer without copying the buffer.
+ * The buffer should be available till it is sent asynchronously.
+ */
+void qemu_put_buffer_async(QEMUFile *f, const uint8_t *buf, int size);
+bool qemu_file_mode_is_not_valid(const char *mode);
+bool qemu_file_is_writable(QEMUFile *f);
+
+QEMUSizedBuffer *qsb_create(const uint8_t *buffer, size_t len);
+void qsb_free(QEMUSizedBuffer *);
+size_t qsb_set_length(QEMUSizedBuffer *qsb, size_t length);
+size_t qsb_get_length(const QEMUSizedBuffer *qsb);
+ssize_t qsb_get_buffer(const QEMUSizedBuffer *, off_t start, size_t count,
+ uint8_t *buf);
+ssize_t qsb_write_at(QEMUSizedBuffer *qsb, const uint8_t *buf,
+ off_t pos, size_t count);
+
+
+/*
+ * For use on files opened with qemu_bufopen
+ */
+const QEMUSizedBuffer *qemu_buf_get(QEMUFile *f);
+
+static inline void qemu_put_ubyte(QEMUFile *f, unsigned int v)
+{
+ qemu_put_byte(f, (int)v);
+}
+
+#define qemu_put_sbyte qemu_put_byte
+
+void qemu_put_be16(QEMUFile *f, unsigned int v);
+void qemu_put_be32(QEMUFile *f, unsigned int v);
+void qemu_put_be64(QEMUFile *f, uint64_t v);
+int qemu_peek_buffer(QEMUFile *f, uint8_t **buf, int size, size_t offset);
+int qemu_get_buffer(QEMUFile *f, uint8_t *buf, int size);
+ssize_t qemu_put_compression_data(QEMUFile *f, const uint8_t *p, size_t size,
+ int level);
+int qemu_put_qemu_file(QEMUFile *f_des, QEMUFile *f_src);
+/*
+ * Note that you can only peek continuous bytes from where the current pointer
+ * is; you aren't guaranteed to be able to peak to +n bytes unless you've
+ * previously peeked +n-1.
+ */
+int qemu_peek_byte(QEMUFile *f, int offset);
+int qemu_get_byte(QEMUFile *f);
+void qemu_file_skip(QEMUFile *f, int size);
+void qemu_update_position(QEMUFile *f, size_t size);
+
+static inline unsigned int qemu_get_ubyte(QEMUFile *f)
+{
+ return (unsigned int)qemu_get_byte(f);
+}
+
+#define qemu_get_sbyte qemu_get_byte
+
+unsigned int qemu_get_be16(QEMUFile *f);
+unsigned int qemu_get_be32(QEMUFile *f);
+uint64_t qemu_get_be64(QEMUFile *f);
+
+int qemu_file_rate_limit(QEMUFile *f);
+void qemu_file_reset_rate_limit(QEMUFile *f);
+void qemu_file_set_rate_limit(QEMUFile *f, int64_t new_rate);
+int64_t qemu_file_get_rate_limit(QEMUFile *f);
+int qemu_file_get_error(QEMUFile *f);
+void qemu_file_set_error(QEMUFile *f, int ret);
+int qemu_file_shutdown(QEMUFile *f);
+void qemu_fflush(QEMUFile *f);
+
+static inline void qemu_put_be64s(QEMUFile *f, const uint64_t *pv)
+{
+ qemu_put_be64(f, *pv);
+}
+
+static inline void qemu_put_be32s(QEMUFile *f, const uint32_t *pv)
+{
+ qemu_put_be32(f, *pv);
+}
+
+static inline void qemu_put_be16s(QEMUFile *f, const uint16_t *pv)
+{
+ qemu_put_be16(f, *pv);
+}
+
+static inline void qemu_put_8s(QEMUFile *f, const uint8_t *pv)
+{
+ qemu_put_byte(f, *pv);
+}
+
+static inline void qemu_get_be64s(QEMUFile *f, uint64_t *pv)
+{
+ *pv = qemu_get_be64(f);
+}
+
+static inline void qemu_get_be32s(QEMUFile *f, uint32_t *pv)
+{
+ *pv = qemu_get_be32(f);
+}
+
+static inline void qemu_get_be16s(QEMUFile *f, uint16_t *pv)
+{
+ *pv = qemu_get_be16(f);
+}
+
+static inline void qemu_get_8s(QEMUFile *f, uint8_t *pv)
+{
+ *pv = qemu_get_byte(f);
+}
+
+// Signed versions for type safety
+static inline void qemu_put_sbuffer(QEMUFile *f, const int8_t *buf, int size)
+{
+ qemu_put_buffer(f, (const uint8_t *)buf, size);
+}
+
+static inline void qemu_put_sbe16(QEMUFile *f, int v)
+{
+ qemu_put_be16(f, (unsigned int)v);
+}
+
+static inline void qemu_put_sbe32(QEMUFile *f, int v)
+{
+ qemu_put_be32(f, (unsigned int)v);
+}
+
+static inline void qemu_put_sbe64(QEMUFile *f, int64_t v)
+{
+ qemu_put_be64(f, (uint64_t)v);
+}
+
+static inline size_t qemu_get_sbuffer(QEMUFile *f, int8_t *buf, int size)
+{
+ return qemu_get_buffer(f, (uint8_t *)buf, size);
+}
+
+static inline int qemu_get_sbe16(QEMUFile *f)
+{
+ return (int)qemu_get_be16(f);
+}
+
+static inline int qemu_get_sbe32(QEMUFile *f)
+{
+ return (int)qemu_get_be32(f);
+}
+
+static inline int64_t qemu_get_sbe64(QEMUFile *f)
+{
+ return (int64_t)qemu_get_be64(f);
+}
+
+static inline void qemu_put_s8s(QEMUFile *f, const int8_t *pv)
+{
+ qemu_put_8s(f, (const uint8_t *)pv);
+}
+
+static inline void qemu_put_sbe16s(QEMUFile *f, const int16_t *pv)
+{
+ qemu_put_be16s(f, (const uint16_t *)pv);
+}
+
+static inline void qemu_put_sbe32s(QEMUFile *f, const int32_t *pv)
+{
+ qemu_put_be32s(f, (const uint32_t *)pv);
+}
+
+static inline void qemu_put_sbe64s(QEMUFile *f, const int64_t *pv)
+{
+ qemu_put_be64s(f, (const uint64_t *)pv);
+}
+
+static inline void qemu_get_s8s(QEMUFile *f, int8_t *pv)
+{
+ qemu_get_8s(f, (uint8_t *)pv);
+}
+
+static inline void qemu_get_sbe16s(QEMUFile *f, int16_t *pv)
+{
+ qemu_get_be16s(f, (uint16_t *)pv);
+}
+
+static inline void qemu_get_sbe32s(QEMUFile *f, int32_t *pv)
+{
+ qemu_get_be32s(f, (uint32_t *)pv);
+}
+
+static inline void qemu_get_sbe64s(QEMUFile *f, int64_t *pv)
+{
+ qemu_get_be64s(f, (uint64_t *)pv);
+}
+
+size_t qemu_get_counted_string(QEMUFile *f, char buf[256]);
+
+#endif
diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
new file mode 100644
index 00000000..2e5a97de
--- /dev/null
+++ b/include/migration/vmstate.h
@@ -0,0 +1,853 @@
+/*
+ * QEMU migration/snapshot declarations
+ *
+ * Copyright (c) 2009-2011 Red Hat, Inc.
+ *
+ * Original author: 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_VMSTATE_H
+#define QEMU_VMSTATE_H 1
+
+#ifndef CONFIG_USER_ONLY
+#include <migration/qemu-file.h>
+#endif
+#include <qjson.h>
+
+typedef void SaveStateHandler(QEMUFile *f, void *opaque);
+typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);
+
+typedef struct SaveVMHandlers {
+ /* This runs inside the iothread lock. */
+ void (*set_params)(const MigrationParams *params, void * opaque);
+ SaveStateHandler *save_state;
+
+ void (*cancel)(void *opaque);
+ int (*save_live_complete)(QEMUFile *f, void *opaque);
+
+ /* This runs both outside and inside the iothread lock. */
+ bool (*is_active)(void *opaque);
+
+ /* This runs outside the iothread lock in the migration case, and
+ * within the lock in the savevm case. The callback had better only
+ * use data that is local to the migration thread or protected
+ * by other locks.
+ */
+ int (*save_live_iterate)(QEMUFile *f, void *opaque);
+
+ /* This runs outside the iothread lock! */
+ int (*save_live_setup)(QEMUFile *f, void *opaque);
+ uint64_t (*save_live_pending)(QEMUFile *f, void *opaque, uint64_t max_size);
+
+ LoadStateHandler *load_state;
+} SaveVMHandlers;
+
+int register_savevm(DeviceState *dev,
+ const char *idstr,
+ int instance_id,
+ int version_id,
+ SaveStateHandler *save_state,
+ LoadStateHandler *load_state,
+ void *opaque);
+
+int register_savevm_live(DeviceState *dev,
+ const char *idstr,
+ int instance_id,
+ int version_id,
+ SaveVMHandlers *ops,
+ void *opaque);
+
+void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque);
+
+typedef struct VMStateInfo VMStateInfo;
+typedef struct VMStateDescription VMStateDescription;
+
+struct VMStateInfo {
+ const char *name;
+ int (*get)(QEMUFile *f, void *pv, size_t size);
+ void (*put)(QEMUFile *f, void *pv, size_t size);
+};
+
+enum VMStateFlags {
+ VMS_SINGLE = 0x001,
+ VMS_POINTER = 0x002,
+ VMS_ARRAY = 0x004,
+ VMS_STRUCT = 0x008,
+ VMS_VARRAY_INT32 = 0x010, /* Array with size in int32_t field*/
+ VMS_BUFFER = 0x020, /* static sized buffer */
+ VMS_ARRAY_OF_POINTER = 0x040,
+ VMS_VARRAY_UINT16 = 0x080, /* Array with size in uint16_t field */
+ VMS_VBUFFER = 0x100, /* Buffer with size in int32_t field */
+ VMS_MULTIPLY = 0x200, /* multiply "size" field by field_size */
+ VMS_VARRAY_UINT8 = 0x400, /* Array with size in uint8_t field*/
+ VMS_VARRAY_UINT32 = 0x800, /* Array with size in uint32_t field*/
+ VMS_MUST_EXIST = 0x1000, /* Field must exist in input */
+ VMS_ALLOC = 0x2000, /* Alloc a buffer on the destination */
+};
+
+typedef struct {
+ const char *name;
+ size_t offset;
+ size_t size;
+ size_t start;
+ int num;
+ size_t num_offset;
+ size_t size_offset;
+ const VMStateInfo *info;
+ enum VMStateFlags flags;
+ const VMStateDescription *vmsd;
+ int version_id;
+ bool (*field_exists)(void *opaque, int version_id);
+} VMStateField;
+
+struct VMStateDescription {
+ const char *name;
+ int unmigratable;
+ int version_id;
+ int minimum_version_id;
+ int minimum_version_id_old;
+ LoadStateHandler *load_state_old;
+ int (*pre_load)(void *opaque);
+ int (*post_load)(void *opaque, int version_id);
+ void (*pre_save)(void *opaque);
+ bool (*needed)(void *opaque);
+ VMStateField *fields;
+ const VMStateDescription **subsections;
+};
+
+extern const VMStateDescription vmstate_dummy;
+
+extern const VMStateInfo vmstate_info_bool;
+
+extern const VMStateInfo vmstate_info_int8;
+extern const VMStateInfo vmstate_info_int16;
+extern const VMStateInfo vmstate_info_int32;
+extern const VMStateInfo vmstate_info_int64;
+
+extern const VMStateInfo vmstate_info_uint8_equal;
+extern const VMStateInfo vmstate_info_uint16_equal;
+extern const VMStateInfo vmstate_info_int32_equal;
+extern const VMStateInfo vmstate_info_uint32_equal;
+extern const VMStateInfo vmstate_info_uint64_equal;
+extern const VMStateInfo vmstate_info_int32_le;
+
+extern const VMStateInfo vmstate_info_uint8;
+extern const VMStateInfo vmstate_info_uint16;
+extern const VMStateInfo vmstate_info_uint32;
+extern const VMStateInfo vmstate_info_uint64;
+
+extern const VMStateInfo vmstate_info_float64;
+
+extern const VMStateInfo vmstate_info_timer;
+extern const VMStateInfo vmstate_info_buffer;
+extern const VMStateInfo vmstate_info_unused_buffer;
+extern const VMStateInfo vmstate_info_bitmap;
+
+#define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0)
+#define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
+#define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
+
+#define vmstate_offset_value(_state, _field, _type) \
+ (offsetof(_state, _field) + \
+ type_check(_type, typeof_field(_state, _field)))
+
+#define vmstate_offset_pointer(_state, _field, _type) \
+ (offsetof(_state, _field) + \
+ type_check_pointer(_type, typeof_field(_state, _field)))
+
+#define vmstate_offset_array(_state, _field, _type, _num) \
+ (offsetof(_state, _field) + \
+ type_check_array(_type, typeof_field(_state, _field), _num))
+
+#define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \
+ (offsetof(_state, _field) + \
+ type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2))
+
+#define vmstate_offset_sub_array(_state, _field, _type, _start) \
+ vmstate_offset_value(_state, _field[_start], _type)
+
+#define vmstate_offset_buffer(_state, _field) \
+ vmstate_offset_array(_state, _field, uint8_t, \
+ sizeof(typeof_field(_state, _field)))
+
+#define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .field_exists = (_test), \
+ .size = sizeof(_type), \
+ .info = &(_info), \
+ .flags = VMS_SINGLE, \
+ .offset = vmstate_offset_value(_state, _field, _type), \
+}
+
+/* Validate state using a boolean predicate. */
+#define VMSTATE_VALIDATE(_name, _test) { \
+ .name = (_name), \
+ .field_exists = (_test), \
+ .flags = VMS_ARRAY | VMS_MUST_EXIST, \
+ .num = 0, /* 0 elements: no data, only run _test */ \
+}
+
+#define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_SINGLE|VMS_POINTER, \
+ .offset = vmstate_offset_value(_state, _field, _type), \
+}
+
+#define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \
+ .name = (stringify(_field)), \
+ .info = &(_info), \
+ .field_exists = (_test), \
+ .size = sizeof(_type), \
+ .flags = VMS_SINGLE|VMS_POINTER, \
+ .offset = vmstate_offset_value(_state, _field, _type), \
+}
+
+#define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .num = (_num), \
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_ARRAY, \
+ .offset = vmstate_offset_array(_state, _field, _type, _num), \
+}
+
+#define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .num = (_n1) * (_n2), \
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_ARRAY, \
+ .offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \
+}
+
+#define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\
+ .name = (stringify(_field)), \
+ .field_exists = (_test), \
+ .num = (_num), \
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_ARRAY, \
+ .offset = vmstate_offset_array(_state, _field, _type, _num),\
+}
+
+#define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .num = (_num), \
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_ARRAY, \
+ .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
+}
+
+#define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\
+ .name = (stringify(_field)), \
+ .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_VARRAY_INT32, \
+ .offset = offsetof(_state, _field), \
+}
+
+#define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_VARRAY_INT32|VMS_POINTER, \
+ .offset = vmstate_offset_pointer(_state, _field, _type), \
+}
+
+#define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_VARRAY_UINT32|VMS_POINTER, \
+ .offset = vmstate_offset_pointer(_state, _field, _type), \
+}
+
+#define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_VARRAY_UINT16, \
+ .offset = offsetof(_state, _field), \
+}
+
+#define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .field_exists = (_test), \
+ .vmsd = &(_vmsd), \
+ .size = sizeof(_type), \
+ .flags = VMS_STRUCT, \
+ .offset = vmstate_offset_value(_state, _field, _type), \
+}
+
+#define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .vmsd = &(_vmsd), \
+ .size = sizeof(_type *), \
+ .flags = VMS_STRUCT|VMS_POINTER, \
+ .offset = vmstate_offset_pointer(_state, _field, _type), \
+}
+
+#define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .field_exists = (_test), \
+ .vmsd = &(_vmsd), \
+ .size = sizeof(_type *), \
+ .flags = VMS_STRUCT|VMS_POINTER, \
+ .offset = vmstate_offset_pointer(_state, _field, _type), \
+}
+
+#define VMSTATE_ARRAY_OF_POINTER(_field, _state, _num, _version, _info, _type) {\
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .num = (_num), \
+ .info = &(_info), \
+ .size = sizeof(_type), \
+ .flags = VMS_ARRAY|VMS_ARRAY_OF_POINTER, \
+ .offset = vmstate_offset_array(_state, _field, _type, _num), \
+}
+
+#define VMSTATE_ARRAY_OF_POINTER_TO_STRUCT(_f, _s, _n, _v, _vmsd, _type) { \
+ .name = (stringify(_f)), \
+ .version_id = (_v), \
+ .num = (_n), \
+ .vmsd = &(_vmsd), \
+ .size = sizeof(_type *), \
+ .flags = VMS_ARRAY|VMS_STRUCT|VMS_ARRAY_OF_POINTER, \
+ .offset = vmstate_offset_array(_s, _f, _type*, _n), \
+}
+
+#define VMSTATE_STRUCT_SUB_ARRAY(_field, _state, _start, _num, _version, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .num = (_num), \
+ .vmsd = &(_vmsd), \
+ .size = sizeof(_type), \
+ .flags = VMS_STRUCT|VMS_ARRAY, \
+ .offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
+}
+
+#define VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, _test, _version, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .num = (_num), \
+ .field_exists = (_test), \
+ .version_id = (_version), \
+ .vmsd = &(_vmsd), \
+ .size = sizeof(_type), \
+ .flags = VMS_STRUCT|VMS_ARRAY, \
+ .offset = vmstate_offset_array(_state, _field, _type, _num),\
+}
+
+#define VMSTATE_STRUCT_VARRAY_UINT8(_field, _state, _field_num, _version, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .num_offset = vmstate_offset_value(_state, _field_num, uint8_t), \
+ .version_id = (_version), \
+ .vmsd = &(_vmsd), \
+ .size = sizeof(_type), \
+ .flags = VMS_STRUCT|VMS_VARRAY_UINT8, \
+ .offset = offsetof(_state, _field), \
+}
+
+#define VMSTATE_STRUCT_VARRAY_POINTER_INT32(_field, _state, _field_num, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = 0, \
+ .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
+ .size = sizeof(_type), \
+ .vmsd = &(_vmsd), \
+ .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \
+ .offset = vmstate_offset_pointer(_state, _field, _type), \
+}
+
+#define VMSTATE_STRUCT_VARRAY_POINTER_UINT32(_field, _state, _field_num, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = 0, \
+ .num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
+ .size = sizeof(_type), \
+ .vmsd = &(_vmsd), \
+ .flags = VMS_POINTER | VMS_VARRAY_INT32 | VMS_STRUCT, \
+ .offset = vmstate_offset_pointer(_state, _field, _type), \
+}
+
+#define VMSTATE_STRUCT_VARRAY_POINTER_UINT16(_field, _state, _field_num, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .version_id = 0, \
+ .num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
+ .size = sizeof(_type), \
+ .vmsd = &(_vmsd), \
+ .flags = VMS_POINTER | VMS_VARRAY_UINT16 | VMS_STRUCT, \
+ .offset = vmstate_offset_pointer(_state, _field, _type), \
+}
+
+#define VMSTATE_STRUCT_VARRAY_INT32(_field, _state, _field_num, _version, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
+ .version_id = (_version), \
+ .vmsd = &(_vmsd), \
+ .size = sizeof(_type), \
+ .flags = VMS_STRUCT|VMS_VARRAY_INT32, \
+ .offset = offsetof(_state, _field), \
+}
+
+#define VMSTATE_STRUCT_VARRAY_UINT32(_field, _state, _field_num, _version, _vmsd, _type) { \
+ .name = (stringify(_field)), \
+ .num_offset = vmstate_offset_value(_state, _field_num, uint32_t), \
+ .version_id = (_version), \
+ .vmsd = &(_vmsd), \
+ .size = sizeof(_type), \
+ .flags = VMS_STRUCT|VMS_VARRAY_UINT32, \
+ .offset = offsetof(_state, _field), \
+}
+
+#define VMSTATE_STRUCT_VARRAY_ALLOC(_field, _state, _field_num, _version, _vmsd, _type) {\
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .vmsd = &(_vmsd), \
+ .num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
+ .size = sizeof(_type), \
+ .flags = VMS_STRUCT|VMS_VARRAY_INT32|VMS_ALLOC|VMS_POINTER, \
+ .offset = vmstate_offset_pointer(_state, _field, _type), \
+}
+
+#define VMSTATE_STATIC_BUFFER(_field, _state, _version, _test, _start, _size) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .field_exists = (_test), \
+ .size = (_size - _start), \
+ .info = &vmstate_info_buffer, \
+ .flags = VMS_BUFFER, \
+ .offset = vmstate_offset_buffer(_state, _field) + _start, \
+}
+
+#define VMSTATE_VBUFFER_MULTIPLY(_field, _state, _version, _test, _start, _field_size, _multiply) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .field_exists = (_test), \
+ .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
+ .size = (_multiply), \
+ .info = &vmstate_info_buffer, \
+ .flags = VMS_VBUFFER|VMS_POINTER|VMS_MULTIPLY, \
+ .offset = offsetof(_state, _field), \
+ .start = (_start), \
+}
+
+#define VMSTATE_VBUFFER(_field, _state, _version, _test, _start, _field_size) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .field_exists = (_test), \
+ .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\
+ .info = &vmstate_info_buffer, \
+ .flags = VMS_VBUFFER|VMS_POINTER, \
+ .offset = offsetof(_state, _field), \
+ .start = (_start), \
+}
+
+#define VMSTATE_VBUFFER_UINT32(_field, _state, _version, _test, _start, _field_size) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .field_exists = (_test), \
+ .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
+ .info = &vmstate_info_buffer, \
+ .flags = VMS_VBUFFER|VMS_POINTER, \
+ .offset = offsetof(_state, _field), \
+ .start = (_start), \
+}
+
+#define VMSTATE_VBUFFER_ALLOC_UINT32(_field, _state, _version, _test, _start, _field_size) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .field_exists = (_test), \
+ .size_offset = vmstate_offset_value(_state, _field_size, uint32_t),\
+ .info = &vmstate_info_buffer, \
+ .flags = VMS_VBUFFER|VMS_POINTER|VMS_ALLOC, \
+ .offset = offsetof(_state, _field), \
+ .start = (_start), \
+}
+
+#define VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, _test, _version, _info, _size) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .field_exists = (_test), \
+ .size = (_size), \
+ .info = &(_info), \
+ .flags = VMS_BUFFER, \
+ .offset = offsetof(_state, _field), \
+}
+
+#define VMSTATE_BUFFER_POINTER_UNSAFE(_field, _state, _version, _size) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .size = (_size), \
+ .info = &vmstate_info_buffer, \
+ .flags = VMS_BUFFER|VMS_POINTER, \
+ .offset = offsetof(_state, _field), \
+}
+
+#define VMSTATE_UNUSED_BUFFER(_test, _version, _size) { \
+ .name = "unused", \
+ .field_exists = (_test), \
+ .version_id = (_version), \
+ .size = (_size), \
+ .info = &vmstate_info_unused_buffer, \
+ .flags = VMS_BUFFER, \
+}
+
+/* _field_size should be a int32_t field in the _state struct giving the
+ * size of the bitmap _field in bits.
+ */
+#define VMSTATE_BITMAP(_field, _state, _version, _field_size) { \
+ .name = (stringify(_field)), \
+ .version_id = (_version), \
+ .size_offset = vmstate_offset_value(_state, _field_size, int32_t),\
+ .info = &vmstate_info_bitmap, \
+ .flags = VMS_VBUFFER|VMS_POINTER, \
+ .offset = offsetof(_state, _field), \
+}
+
+/* _f : field name
+ _f_n : num of elements field_name
+ _n : num of elements
+ _s : struct state name
+ _v : version
+*/
+
+#define VMSTATE_SINGLE(_field, _state, _version, _info, _type) \
+ VMSTATE_SINGLE_TEST(_field, _state, NULL, _version, _info, _type)
+
+#define VMSTATE_STRUCT(_field, _state, _version, _vmsd, _type) \
+ VMSTATE_STRUCT_TEST(_field, _state, NULL, _version, _vmsd, _type)
+
+#define VMSTATE_STRUCT_POINTER(_field, _state, _vmsd, _type) \
+ VMSTATE_STRUCT_POINTER_V(_field, _state, 0, _vmsd, _type)
+
+#define VMSTATE_STRUCT_POINTER_TEST(_field, _state, _test, _vmsd, _type) \
+ VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, 0, _vmsd, _type)
+
+#define VMSTATE_STRUCT_ARRAY(_field, _state, _num, _version, _vmsd, _type) \
+ VMSTATE_STRUCT_ARRAY_TEST(_field, _state, _num, NULL, _version, \
+ _vmsd, _type)
+
+#define VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, _info, _size) \
+ VMSTATE_BUFFER_UNSAFE_INFO_TEST(_field, _state, NULL, _version, _info, \
+ _size)
+
+#define VMSTATE_BOOL_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_bool, bool)
+
+#define VMSTATE_INT8_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int8, int8_t)
+#define VMSTATE_INT16_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int16, int16_t)
+#define VMSTATE_INT32_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int32, int32_t)
+#define VMSTATE_INT64_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_int64, int64_t)
+
+#define VMSTATE_UINT8_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint8, uint8_t)
+#define VMSTATE_UINT16_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16, uint16_t)
+#define VMSTATE_UINT32_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32, uint32_t)
+#define VMSTATE_UINT64_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64, uint64_t)
+
+#define VMSTATE_BOOL(_f, _s) \
+ VMSTATE_BOOL_V(_f, _s, 0)
+
+#define VMSTATE_INT8(_f, _s) \
+ VMSTATE_INT8_V(_f, _s, 0)
+#define VMSTATE_INT16(_f, _s) \
+ VMSTATE_INT16_V(_f, _s, 0)
+#define VMSTATE_INT32(_f, _s) \
+ VMSTATE_INT32_V(_f, _s, 0)
+#define VMSTATE_INT64(_f, _s) \
+ VMSTATE_INT64_V(_f, _s, 0)
+
+#define VMSTATE_UINT8(_f, _s) \
+ VMSTATE_UINT8_V(_f, _s, 0)
+#define VMSTATE_UINT16(_f, _s) \
+ VMSTATE_UINT16_V(_f, _s, 0)
+#define VMSTATE_UINT32(_f, _s) \
+ VMSTATE_UINT32_V(_f, _s, 0)
+#define VMSTATE_UINT64(_f, _s) \
+ VMSTATE_UINT64_V(_f, _s, 0)
+
+#define VMSTATE_UINT8_EQUAL(_f, _s) \
+ VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint8_equal, uint8_t)
+
+#define VMSTATE_UINT16_EQUAL(_f, _s) \
+ VMSTATE_SINGLE(_f, _s, 0, vmstate_info_uint16_equal, uint16_t)
+
+#define VMSTATE_UINT16_EQUAL_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint16_equal, uint16_t)
+
+#define VMSTATE_INT32_EQUAL(_f, _s) \
+ VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_equal, int32_t)
+
+#define VMSTATE_UINT32_EQUAL_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint32_equal, uint32_t)
+
+#define VMSTATE_UINT32_EQUAL(_f, _s) \
+ VMSTATE_UINT32_EQUAL_V(_f, _s, 0)
+
+#define VMSTATE_UINT64_EQUAL_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_uint64_equal, uint64_t)
+
+#define VMSTATE_UINT64_EQUAL(_f, _s) \
+ VMSTATE_UINT64_EQUAL_V(_f, _s, 0)
+
+#define VMSTATE_INT32_POSITIVE_LE(_f, _s) \
+ VMSTATE_SINGLE(_f, _s, 0, vmstate_info_int32_le, int32_t)
+
+#define VMSTATE_INT8_TEST(_f, _s, _t) \
+ VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int8, int8_t)
+
+#define VMSTATE_INT16_TEST(_f, _s, _t) \
+ VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int16, int16_t)
+
+#define VMSTATE_INT32_TEST(_f, _s, _t) \
+ VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int32, int32_t)
+
+#define VMSTATE_INT64_TEST(_f, _s, _t) \
+ VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_int64, int64_t)
+
+#define VMSTATE_UINT8_TEST(_f, _s, _t) \
+ VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint8, uint8_t)
+
+#define VMSTATE_UINT16_TEST(_f, _s, _t) \
+ VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint16, uint16_t)
+
+#define VMSTATE_UINT32_TEST(_f, _s, _t) \
+ VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint32, uint32_t)
+
+#define VMSTATE_UINT64_TEST(_f, _s, _t) \
+ VMSTATE_SINGLE_TEST(_f, _s, _t, 0, vmstate_info_uint64, uint64_t)
+
+
+#define VMSTATE_FLOAT64_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_float64, float64)
+
+#define VMSTATE_FLOAT64(_f, _s) \
+ VMSTATE_FLOAT64_V(_f, _s, 0)
+
+#define VMSTATE_TIMER_PTR_TEST(_f, _s, _test) \
+ VMSTATE_POINTER_TEST(_f, _s, _test, vmstate_info_timer, QEMUTimer *)
+
+#define VMSTATE_TIMER_PTR_V(_f, _s, _v) \
+ VMSTATE_POINTER(_f, _s, _v, vmstate_info_timer, QEMUTimer *)
+
+#define VMSTATE_TIMER_PTR(_f, _s) \
+ VMSTATE_TIMER_PTR_V(_f, _s, 0)
+
+#define VMSTATE_TIMER_PTR_ARRAY(_f, _s, _n) \
+ VMSTATE_ARRAY_OF_POINTER(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer *)
+
+#define VMSTATE_TIMER_TEST(_f, _s, _test) \
+ VMSTATE_SINGLE_TEST(_f, _s, _test, 0, vmstate_info_timer, QEMUTimer)
+
+#define VMSTATE_TIMER_V(_f, _s, _v) \
+ VMSTATE_SINGLE(_f, _s, _v, vmstate_info_timer, QEMUTimer)
+
+#define VMSTATE_TIMER(_f, _s) \
+ VMSTATE_TIMER_V(_f, _s, 0)
+
+#define VMSTATE_TIMER_ARRAY(_f, _s, _n) \
+ VMSTATE_ARRAY(_f, _s, _n, 0, vmstate_info_timer, QEMUTimer)
+
+#define VMSTATE_BOOL_ARRAY_V(_f, _s, _n, _v) \
+ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_bool, bool)
+
+#define VMSTATE_BOOL_ARRAY(_f, _s, _n) \
+ VMSTATE_BOOL_ARRAY_V(_f, _s, _n, 0)
+
+#define VMSTATE_UINT16_ARRAY_V(_f, _s, _n, _v) \
+ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint16, uint16_t)
+
+#define VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, _v) \
+ VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint16, uint16_t)
+
+#define VMSTATE_UINT16_ARRAY(_f, _s, _n) \
+ VMSTATE_UINT16_ARRAY_V(_f, _s, _n, 0)
+
+#define VMSTATE_UINT16_2DARRAY(_f, _s, _n1, _n2) \
+ VMSTATE_UINT16_2DARRAY_V(_f, _s, _n1, _n2, 0)
+
+#define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \
+ VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t)
+
+#define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \
+ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t)
+
+#define VMSTATE_UINT8_ARRAY(_f, _s, _n) \
+ VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0)
+
+#define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \
+ VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t)
+
+#define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \
+ VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0)
+
+#define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \
+ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t)
+
+#define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \
+ VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t)
+
+#define VMSTATE_UINT32_ARRAY(_f, _s, _n) \
+ VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
+
+#define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \
+ VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0)
+
+#define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \
+ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t)
+
+#define VMSTATE_UINT64_ARRAY(_f, _s, _n) \
+ VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0)
+
+#define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \
+ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t)
+
+#define VMSTATE_INT16_ARRAY(_f, _s, _n) \
+ VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0)
+
+#define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \
+ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t)
+
+#define VMSTATE_INT32_ARRAY(_f, _s, _n) \
+ VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0)
+
+#define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \
+ VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t)
+
+#define VMSTATE_UINT32_ARRAY(_f, _s, _n) \
+ VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
+
+#define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \
+ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t)
+
+#define VMSTATE_INT64_ARRAY(_f, _s, _n) \
+ VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0)
+
+#define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \
+ VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64)
+
+#define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \
+ VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0)
+
+#define VMSTATE_BUFFER_V(_f, _s, _v) \
+ VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))
+
+#define VMSTATE_BUFFER(_f, _s) \
+ VMSTATE_BUFFER_V(_f, _s, 0)
+
+#define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \
+ VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size)
+
+#define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
+ VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, _start, sizeof(typeof_field(_s, _f)))
+
+#define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \
+ VMSTATE_VBUFFER(_f, _s, 0, NULL, 0, _size)
+
+#define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \
+ VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, 0, _size)
+
+#define VMSTATE_SUB_VBUFFER(_f, _s, _start, _size) \
+ VMSTATE_VBUFFER(_f, _s, 0, NULL, _start, _size)
+
+#define VMSTATE_BUFFER_TEST(_f, _s, _test) \
+ VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f)))
+
+#define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \
+ VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size)
+
+#define VMSTATE_UNUSED_V(_v, _size) \
+ VMSTATE_UNUSED_BUFFER(NULL, _v, _size)
+
+#define VMSTATE_UNUSED(_size) \
+ VMSTATE_UNUSED_V(0, _size)
+
+#define VMSTATE_UNUSED_TEST(_test, _size) \
+ VMSTATE_UNUSED_BUFFER(_test, 0, _size)
+
+#define VMSTATE_END_OF_LIST() \
+ {}
+
+#define SELF_ANNOUNCE_ROUNDS 5
+
+void loadvm_free_handlers(MigrationIncomingState *mis);
+
+int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
+ void *opaque, int version_id);
+void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
+ void *opaque, QJSON *vmdesc);
+
+bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque);
+
+int vmstate_register_with_alias_id(DeviceState *dev, int instance_id,
+ const VMStateDescription *vmsd,
+ void *base, int alias_id,
+ int required_for_version);
+
+static inline int vmstate_register(DeviceState *dev, int instance_id,
+ const VMStateDescription *vmsd,
+ void *opaque)
+{
+ return vmstate_register_with_alias_id(dev, instance_id, vmsd,
+ opaque, -1, 0);
+}
+
+void vmstate_unregister(DeviceState *dev, const VMStateDescription *vmsd,
+ void *opaque);
+
+struct MemoryRegion;
+void vmstate_register_ram(struct MemoryRegion *memory, DeviceState *dev);
+void vmstate_unregister_ram(struct MemoryRegion *memory, DeviceState *dev);
+void vmstate_register_ram_global(struct MemoryRegion *memory);
+
+static inline
+int64_t self_announce_delay(int round)
+{
+ assert(round < SELF_ANNOUNCE_ROUNDS && round > 0);
+ /* delay 50ms, 150ms, 250ms, ... */
+ return 50 + (SELF_ANNOUNCE_ROUNDS - round - 1) * 100;
+}
+
+void dump_vmstate_json_to_file(FILE *out_fp);
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 11:01:57 +0000