17b74b9867
Type QJSON lets you build JSON text. Its interface mirrors (a subset of) abstract JSON syntax. QAPI output visitors also produce JSON text. They assert their preconditions and invariants, and therefore abort on incorrect use. Contrastingly, QJSON does *not* detect incorrect use. It happily produces invalid JSON then. This is what migration wants. QJSON was designed for migration, and migration is its only user. Move it to migration/ for proper coverage by MAINTAINERS, and to deter accidental use outside migration. [Pointed out by Eric: QJSON was added in commits 0457d07..b174257 -- Amit] Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <1462380558-2030-2-git-send-email-armbru@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
964 lines
45 KiB
C
964 lines
45 KiB
C
/*
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* QEMU migration/snapshot declarations
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*
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* Copyright (c) 2009-2011 Red Hat, Inc.
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*
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* Original author: Juan Quintela <quintela@redhat.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef QEMU_VMSTATE_H
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#define QEMU_VMSTATE_H 1
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#ifndef CONFIG_USER_ONLY
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#include <migration/qemu-file.h>
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#endif
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#include "migration/qjson.h"
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typedef void SaveStateHandler(QEMUFile *f, void *opaque);
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typedef int LoadStateHandler(QEMUFile *f, void *opaque, int version_id);
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typedef struct SaveVMHandlers {
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/* This runs inside the iothread lock. */
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void (*set_params)(const MigrationParams *params, void * opaque);
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SaveStateHandler *save_state;
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void (*cleanup)(void *opaque);
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int (*save_live_complete_postcopy)(QEMUFile *f, void *opaque);
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int (*save_live_complete_precopy)(QEMUFile *f, void *opaque);
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/* This runs both outside and inside the iothread lock. */
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bool (*is_active)(void *opaque);
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/* This runs outside the iothread lock in the migration case, and
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* within the lock in the savevm case. The callback had better only
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* use data that is local to the migration thread or protected
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* by other locks.
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*/
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int (*save_live_iterate)(QEMUFile *f, void *opaque);
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/* This runs outside the iothread lock! */
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int (*save_live_setup)(QEMUFile *f, void *opaque);
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void (*save_live_pending)(QEMUFile *f, void *opaque, uint64_t max_size,
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uint64_t *non_postcopiable_pending,
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uint64_t *postcopiable_pending);
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LoadStateHandler *load_state;
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} SaveVMHandlers;
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int register_savevm(DeviceState *dev,
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const char *idstr,
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int instance_id,
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int version_id,
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SaveStateHandler *save_state,
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LoadStateHandler *load_state,
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void *opaque);
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int register_savevm_live(DeviceState *dev,
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const char *idstr,
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int instance_id,
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int version_id,
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SaveVMHandlers *ops,
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void *opaque);
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void unregister_savevm(DeviceState *dev, const char *idstr, void *opaque);
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typedef struct VMStateInfo VMStateInfo;
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typedef struct VMStateDescription VMStateDescription;
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struct VMStateInfo {
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const char *name;
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int (*get)(QEMUFile *f, void *pv, size_t size);
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void (*put)(QEMUFile *f, void *pv, size_t size);
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};
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enum VMStateFlags {
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/* Ignored */
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VMS_SINGLE = 0x001,
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/* The struct member at opaque + VMStateField.offset is a pointer
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* to the actual field (e.g. struct a { uint8_t *b;
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* }). Dereference the pointer before using it as basis for
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* further pointer arithmetic (see e.g. VMS_ARRAY). Does not
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* affect the meaning of VMStateField.num_offset or
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* VMStateField.size_offset; see VMS_VARRAY* and VMS_VBUFFER for
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* those. */
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VMS_POINTER = 0x002,
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/* The field is an array of fixed size. VMStateField.num contains
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* the number of entries in the array. The size of each entry is
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* given by VMStateField.size and / or opaque +
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* VMStateField.size_offset; see VMS_VBUFFER and
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* VMS_MULTIPLY. Each array entry will be processed individually
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* (VMStateField.info.get()/put() if VMS_STRUCT is not set,
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* recursion into VMStateField.vmsd if VMS_STRUCT is set). May not
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* be combined with VMS_VARRAY*. */
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VMS_ARRAY = 0x004,
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/* The field is itself a struct, containing one or more
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* fields. Recurse into VMStateField.vmsd. Most useful in
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* combination with VMS_ARRAY / VMS_VARRAY*, recursing into each
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* array entry. */
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VMS_STRUCT = 0x008,
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/* The field is an array of variable size. The int32_t at opaque +
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* VMStateField.num_offset contains the number of entries in the
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* array. See the VMS_ARRAY description regarding array handling
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* in general. May not be combined with VMS_ARRAY or any other
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* VMS_VARRAY*. */
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VMS_VARRAY_INT32 = 0x010,
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/* Ignored */
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VMS_BUFFER = 0x020,
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/* The field is a (fixed-size or variable-size) array of pointers
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* (e.g. struct a { uint8_t *b[]; }). Dereference each array entry
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* before using it. Note: Does not imply any one of VMS_ARRAY /
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* VMS_VARRAY*; these need to be set explicitly. */
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VMS_ARRAY_OF_POINTER = 0x040,
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/* The field is an array of variable size. The uint16_t at opaque
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* + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
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* contains the number of entries in the array. See the VMS_ARRAY
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* description regarding array handling in general. May not be
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* combined with VMS_ARRAY or any other VMS_VARRAY*. */
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VMS_VARRAY_UINT16 = 0x080,
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/* The size of the individual entries (a single array entry if
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* VMS_ARRAY or any of VMS_VARRAY* are set, or the field itself if
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* neither is set) is variable (i.e. not known at compile-time),
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* but the same for all entries. Use the int32_t at opaque +
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* VMStateField.size_offset (subject to VMS_MULTIPLY) to determine
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* the size of each (and every) entry. */
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VMS_VBUFFER = 0x100,
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/* Multiply the entry size given by the int32_t at opaque +
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* VMStateField.size_offset (see VMS_VBUFFER description) with
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* VMStateField.size to determine the number of bytes to be
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* allocated. Only valid in combination with VMS_VBUFFER. */
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VMS_MULTIPLY = 0x200,
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/* The field is an array of variable size. The uint8_t at opaque +
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* VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
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* contains the number of entries in the array. See the VMS_ARRAY
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* description regarding array handling in general. May not be
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* combined with VMS_ARRAY or any other VMS_VARRAY*. */
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VMS_VARRAY_UINT8 = 0x400,
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/* The field is an array of variable size. The uint32_t at opaque
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* + VMStateField.num_offset (subject to VMS_MULTIPLY_ELEMENTS)
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* contains the number of entries in the array. See the VMS_ARRAY
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* description regarding array handling in general. May not be
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* combined with VMS_ARRAY or any other VMS_VARRAY*. */
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VMS_VARRAY_UINT32 = 0x800,
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/* Fail loading the serialised VM state if this field is missing
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* from the input. */
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VMS_MUST_EXIST = 0x1000,
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/* When loading serialised VM state, allocate memory for the
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* (entire) field. Only valid in combination with
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* VMS_POINTER. Note: Not all combinations with other flags are
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* currently supported, e.g. VMS_ALLOC|VMS_ARRAY_OF_POINTER won't
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* cause the individual entries to be allocated. */
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VMS_ALLOC = 0x2000,
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/* Multiply the number of entries given by the integer at opaque +
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* VMStateField.num_offset (see VMS_VARRAY*) with VMStateField.num
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* to determine the number of entries in the array. Only valid in
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* combination with one of VMS_VARRAY*. */
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VMS_MULTIPLY_ELEMENTS = 0x4000,
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};
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typedef struct {
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const char *name;
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size_t offset;
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size_t size;
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size_t start;
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int num;
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size_t num_offset;
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size_t size_offset;
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const VMStateInfo *info;
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enum VMStateFlags flags;
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const VMStateDescription *vmsd;
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int version_id;
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bool (*field_exists)(void *opaque, int version_id);
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} VMStateField;
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struct VMStateDescription {
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const char *name;
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int unmigratable;
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int version_id;
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int minimum_version_id;
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int minimum_version_id_old;
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LoadStateHandler *load_state_old;
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int (*pre_load)(void *opaque);
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int (*post_load)(void *opaque, int version_id);
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void (*pre_save)(void *opaque);
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bool (*needed)(void *opaque);
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VMStateField *fields;
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const VMStateDescription **subsections;
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};
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extern const VMStateDescription vmstate_dummy;
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extern const VMStateInfo vmstate_info_bool;
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extern const VMStateInfo vmstate_info_int8;
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extern const VMStateInfo vmstate_info_int16;
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extern const VMStateInfo vmstate_info_int32;
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extern const VMStateInfo vmstate_info_int64;
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extern const VMStateInfo vmstate_info_uint8_equal;
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extern const VMStateInfo vmstate_info_uint16_equal;
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extern const VMStateInfo vmstate_info_int32_equal;
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extern const VMStateInfo vmstate_info_uint32_equal;
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extern const VMStateInfo vmstate_info_uint64_equal;
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extern const VMStateInfo vmstate_info_int32_le;
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extern const VMStateInfo vmstate_info_uint8;
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extern const VMStateInfo vmstate_info_uint16;
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extern const VMStateInfo vmstate_info_uint32;
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extern const VMStateInfo vmstate_info_uint64;
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extern const VMStateInfo vmstate_info_float64;
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extern const VMStateInfo vmstate_info_cpudouble;
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extern const VMStateInfo vmstate_info_timer;
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extern const VMStateInfo vmstate_info_buffer;
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extern const VMStateInfo vmstate_info_unused_buffer;
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extern const VMStateInfo vmstate_info_bitmap;
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#define type_check_2darray(t1,t2,n,m) ((t1(*)[n][m])0 - (t2*)0)
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#define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0)
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#define type_check_pointer(t1,t2) ((t1**)0 - (t2*)0)
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#define vmstate_offset_value(_state, _field, _type) \
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(offsetof(_state, _field) + \
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type_check(_type, typeof_field(_state, _field)))
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#define vmstate_offset_pointer(_state, _field, _type) \
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(offsetof(_state, _field) + \
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type_check_pointer(_type, typeof_field(_state, _field)))
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#define vmstate_offset_array(_state, _field, _type, _num) \
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(offsetof(_state, _field) + \
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type_check_array(_type, typeof_field(_state, _field), _num))
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#define vmstate_offset_2darray(_state, _field, _type, _n1, _n2) \
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(offsetof(_state, _field) + \
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type_check_2darray(_type, typeof_field(_state, _field), _n1, _n2))
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#define vmstate_offset_sub_array(_state, _field, _type, _start) \
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vmstate_offset_value(_state, _field[_start], _type)
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#define vmstate_offset_buffer(_state, _field) \
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vmstate_offset_array(_state, _field, uint8_t, \
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sizeof(typeof_field(_state, _field)))
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#define VMSTATE_SINGLE_TEST(_field, _state, _test, _version, _info, _type) { \
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.field_exists = (_test), \
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.size = sizeof(_type), \
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.info = &(_info), \
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.flags = VMS_SINGLE, \
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.offset = vmstate_offset_value(_state, _field, _type), \
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}
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/* Validate state using a boolean predicate. */
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#define VMSTATE_VALIDATE(_name, _test) { \
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.name = (_name), \
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.field_exists = (_test), \
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.flags = VMS_ARRAY | VMS_MUST_EXIST, \
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.num = 0, /* 0 elements: no data, only run _test */ \
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}
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#define VMSTATE_POINTER(_field, _state, _version, _info, _type) { \
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.info = &(_info), \
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.size = sizeof(_type), \
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.flags = VMS_SINGLE|VMS_POINTER, \
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.offset = vmstate_offset_value(_state, _field, _type), \
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}
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#define VMSTATE_POINTER_TEST(_field, _state, _test, _info, _type) { \
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.name = (stringify(_field)), \
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.info = &(_info), \
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.field_exists = (_test), \
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.size = sizeof(_type), \
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.flags = VMS_SINGLE|VMS_POINTER, \
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.offset = vmstate_offset_value(_state, _field, _type), \
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}
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#define VMSTATE_ARRAY(_field, _state, _num, _version, _info, _type) {\
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.num = (_num), \
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.info = &(_info), \
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.size = sizeof(_type), \
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.flags = VMS_ARRAY, \
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.offset = vmstate_offset_array(_state, _field, _type, _num), \
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}
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#define VMSTATE_2DARRAY(_field, _state, _n1, _n2, _version, _info, _type) { \
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.num = (_n1) * (_n2), \
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.info = &(_info), \
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.size = sizeof(_type), \
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.flags = VMS_ARRAY, \
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.offset = vmstate_offset_2darray(_state, _field, _type, _n1, _n2), \
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}
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#define VMSTATE_VARRAY_MULTIPLY(_field, _state, _field_num, _multiply, _info, _type) { \
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.name = (stringify(_field)), \
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.num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
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.num = (_multiply), \
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.info = &(_info), \
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.size = sizeof(_type), \
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.flags = VMS_VARRAY_UINT32|VMS_MULTIPLY_ELEMENTS, \
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.offset = offsetof(_state, _field), \
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}
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#define VMSTATE_ARRAY_TEST(_field, _state, _num, _test, _info, _type) {\
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.name = (stringify(_field)), \
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.field_exists = (_test), \
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.num = (_num), \
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.info = &(_info), \
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.size = sizeof(_type), \
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.flags = VMS_ARRAY, \
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.offset = vmstate_offset_array(_state, _field, _type, _num),\
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}
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#define VMSTATE_SUB_ARRAY(_field, _state, _start, _num, _version, _info, _type) { \
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.num = (_num), \
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.info = &(_info), \
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.size = sizeof(_type), \
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.flags = VMS_ARRAY, \
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.offset = vmstate_offset_sub_array(_state, _field, _type, _start), \
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}
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#define VMSTATE_ARRAY_INT32_UNSAFE(_field, _state, _field_num, _info, _type) {\
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.name = (stringify(_field)), \
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.num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
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.info = &(_info), \
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.size = sizeof(_type), \
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.flags = VMS_VARRAY_INT32, \
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.offset = offsetof(_state, _field), \
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}
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#define VMSTATE_VARRAY_INT32(_field, _state, _field_num, _version, _info, _type) {\
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.num_offset = vmstate_offset_value(_state, _field_num, int32_t), \
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.info = &(_info), \
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.size = sizeof(_type), \
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.flags = VMS_VARRAY_INT32|VMS_POINTER, \
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.offset = vmstate_offset_pointer(_state, _field, _type), \
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}
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#define VMSTATE_VARRAY_UINT32(_field, _state, _field_num, _version, _info, _type) {\
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.num_offset = vmstate_offset_value(_state, _field_num, uint32_t),\
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.info = &(_info), \
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.size = sizeof(_type), \
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.flags = VMS_VARRAY_UINT32|VMS_POINTER, \
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.offset = vmstate_offset_pointer(_state, _field, _type), \
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}
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#define VMSTATE_VARRAY_UINT16_UNSAFE(_field, _state, _field_num, _version, _info, _type) {\
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.num_offset = vmstate_offset_value(_state, _field_num, uint16_t),\
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.info = &(_info), \
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.size = sizeof(_type), \
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.flags = VMS_VARRAY_UINT16, \
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.offset = offsetof(_state, _field), \
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}
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#define VMSTATE_STRUCT_TEST(_field, _state, _test, _version, _vmsd, _type) { \
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.field_exists = (_test), \
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.vmsd = &(_vmsd), \
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.size = sizeof(_type), \
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.flags = VMS_STRUCT, \
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.offset = vmstate_offset_value(_state, _field, _type), \
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}
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#define VMSTATE_STRUCT_POINTER_V(_field, _state, _version, _vmsd, _type) { \
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.vmsd = &(_vmsd), \
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.size = sizeof(_type *), \
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.flags = VMS_STRUCT|VMS_POINTER, \
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.offset = vmstate_offset_pointer(_state, _field, _type), \
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}
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#define VMSTATE_STRUCT_POINTER_TEST_V(_field, _state, _test, _version, _vmsd, _type) { \
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.name = (stringify(_field)), \
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.version_id = (_version), \
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.field_exists = (_test), \
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.vmsd = &(_vmsd), \
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.size = sizeof(_type *), \
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.flags = VMS_STRUCT|VMS_POINTER, \
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.offset = vmstate_offset_pointer(_state, _field, _type), \
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|
}
|
|
|
|
#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), \
|
|
}
|
|
|
|
/* a variable length array (i.e. _type *_field) but we know the
|
|
* length
|
|
*/
|
|
#define VMSTATE_STRUCT_VARRAY_POINTER_KNOWN(_field, _state, _num, _version, _vmsd, _type) { \
|
|
.name = (stringify(_field)), \
|
|
.num = (_num), \
|
|
.version_id = (_version), \
|
|
.vmsd = &(_vmsd), \
|
|
.size = sizeof(_type), \
|
|
.flags = VMS_STRUCT|VMS_ARRAY|VMS_POINTER, \
|
|
.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)
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#define VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, _v) \
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VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint8, uint8_t)
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#define VMSTATE_UINT8_ARRAY_V(_f, _s, _n, _v) \
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VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint8, uint8_t)
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#define VMSTATE_UINT8_ARRAY(_f, _s, _n) \
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VMSTATE_UINT8_ARRAY_V(_f, _s, _n, 0)
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#define VMSTATE_UINT8_SUB_ARRAY(_f, _s, _start, _num) \
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VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint8, uint8_t)
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#define VMSTATE_UINT8_2DARRAY(_f, _s, _n1, _n2) \
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VMSTATE_UINT8_2DARRAY_V(_f, _s, _n1, _n2, 0)
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#define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \
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VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t)
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#define VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, _v) \
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VMSTATE_2DARRAY(_f, _s, _n1, _n2, _v, vmstate_info_uint32, uint32_t)
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#define VMSTATE_UINT32_ARRAY(_f, _s, _n) \
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VMSTATE_UINT32_ARRAY_V(_f, _s, _n, 0)
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#define VMSTATE_UINT32_2DARRAY(_f, _s, _n1, _n2) \
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VMSTATE_UINT32_2DARRAY_V(_f, _s, _n1, _n2, 0)
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#define VMSTATE_UINT64_ARRAY_V(_f, _s, _n, _v) \
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VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint64, uint64_t)
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#define VMSTATE_UINT64_ARRAY(_f, _s, _n) \
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VMSTATE_UINT64_ARRAY_V(_f, _s, _n, 0)
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#define VMSTATE_INT16_ARRAY_V(_f, _s, _n, _v) \
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VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int16, int16_t)
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#define VMSTATE_INT16_ARRAY(_f, _s, _n) \
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VMSTATE_INT16_ARRAY_V(_f, _s, _n, 0)
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#define VMSTATE_INT32_ARRAY_V(_f, _s, _n, _v) \
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VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int32, int32_t)
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#define VMSTATE_INT32_ARRAY(_f, _s, _n) \
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VMSTATE_INT32_ARRAY_V(_f, _s, _n, 0)
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#define VMSTATE_UINT32_SUB_ARRAY(_f, _s, _start, _num) \
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VMSTATE_SUB_ARRAY(_f, _s, _start, _num, 0, vmstate_info_uint32, uint32_t)
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#define VMSTATE_INT64_ARRAY_V(_f, _s, _n, _v) \
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VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_int64, int64_t)
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#define VMSTATE_INT64_ARRAY(_f, _s, _n) \
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VMSTATE_INT64_ARRAY_V(_f, _s, _n, 0)
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#define VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, _v) \
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VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_float64, float64)
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#define VMSTATE_FLOAT64_ARRAY(_f, _s, _n) \
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VMSTATE_FLOAT64_ARRAY_V(_f, _s, _n, 0)
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#define VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, _v) \
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VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_cpudouble, CPU_DoubleU)
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#define VMSTATE_CPUDOUBLE_ARRAY(_f, _s, _n) \
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VMSTATE_CPUDOUBLE_ARRAY_V(_f, _s, _n, 0)
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#define VMSTATE_BUFFER_V(_f, _s, _v) \
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VMSTATE_STATIC_BUFFER(_f, _s, _v, NULL, 0, sizeof(typeof_field(_s, _f)))
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#define VMSTATE_BUFFER(_f, _s) \
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VMSTATE_BUFFER_V(_f, _s, 0)
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#define VMSTATE_PARTIAL_BUFFER(_f, _s, _size) \
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VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, 0, _size)
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#define VMSTATE_BUFFER_START_MIDDLE(_f, _s, _start) \
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VMSTATE_STATIC_BUFFER(_f, _s, 0, NULL, _start, sizeof(typeof_field(_s, _f)))
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#define VMSTATE_PARTIAL_VBUFFER(_f, _s, _size) \
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VMSTATE_VBUFFER(_f, _s, 0, NULL, 0, _size)
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#define VMSTATE_PARTIAL_VBUFFER_UINT32(_f, _s, _size) \
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VMSTATE_VBUFFER_UINT32(_f, _s, 0, NULL, 0, _size)
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#define VMSTATE_SUB_VBUFFER(_f, _s, _start, _size) \
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VMSTATE_VBUFFER(_f, _s, 0, NULL, _start, _size)
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#define VMSTATE_BUFFER_TEST(_f, _s, _test) \
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|
VMSTATE_STATIC_BUFFER(_f, _s, 0, _test, 0, sizeof(typeof_field(_s, _f)))
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|
|
|
#define VMSTATE_BUFFER_UNSAFE(_field, _state, _version, _size) \
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|
VMSTATE_BUFFER_UNSAFE_INFO(_field, _state, _version, vmstate_info_buffer, _size)
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|
|
|
#define VMSTATE_UNUSED_V(_v, _size) \
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|
VMSTATE_UNUSED_BUFFER(NULL, _v, _size)
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|
|
#define VMSTATE_UNUSED(_size) \
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VMSTATE_UNUSED_V(0, _size)
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|
|
#define VMSTATE_UNUSED_TEST(_test, _size) \
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|
VMSTATE_UNUSED_BUFFER(_test, 0, _size)
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|
|
|
#define VMSTATE_END_OF_LIST() \
|
|
{}
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|
|
|
#define SELF_ANNOUNCE_ROUNDS 5
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|
|
|
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
|