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-rw-r--r--qemu/migration/vmstate.c918
1 files changed, 0 insertions, 918 deletions
diff --git a/qemu/migration/vmstate.c b/qemu/migration/vmstate.c
deleted file mode 100644
index bf3d5db30..000000000
--- a/qemu/migration/vmstate.c
+++ /dev/null
@@ -1,918 +0,0 @@
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "migration/migration.h"
-#include "migration/qemu-file.h"
-#include "migration/vmstate.h"
-#include "qemu/bitops.h"
-#include "qemu/error-report.h"
-#include "trace.h"
-#include "qjson.h"
-
-static void vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd,
- void *opaque, QJSON *vmdesc);
-static int vmstate_subsection_load(QEMUFile *f, const VMStateDescription *vmsd,
- void *opaque);
-
-static int vmstate_n_elems(void *opaque, VMStateField *field)
-{
- int n_elems = 1;
-
- if (field->flags & VMS_ARRAY) {
- n_elems = field->num;
- } else if (field->flags & VMS_VARRAY_INT32) {
- n_elems = *(int32_t *)(opaque+field->num_offset);
- } else if (field->flags & VMS_VARRAY_UINT32) {
- n_elems = *(uint32_t *)(opaque+field->num_offset);
- } else if (field->flags & VMS_VARRAY_UINT16) {
- n_elems = *(uint16_t *)(opaque+field->num_offset);
- } else if (field->flags & VMS_VARRAY_UINT8) {
- n_elems = *(uint8_t *)(opaque+field->num_offset);
- }
-
- if (field->flags & VMS_MULTIPLY_ELEMENTS) {
- n_elems *= field->num;
- }
-
- return n_elems;
-}
-
-static int vmstate_size(void *opaque, VMStateField *field)
-{
- int size = field->size;
-
- if (field->flags & VMS_VBUFFER) {
- size = *(int32_t *)(opaque+field->size_offset);
- if (field->flags & VMS_MULTIPLY) {
- size *= field->size;
- }
- }
-
- return size;
-}
-
-static void *vmstate_base_addr(void *opaque, VMStateField *field, bool alloc)
-{
- void *base_addr = opaque + field->offset;
-
- if (field->flags & VMS_POINTER) {
- if (alloc && (field->flags & VMS_ALLOC)) {
- gsize size = 0;
- if (field->flags & VMS_VBUFFER) {
- size = vmstate_size(opaque, field);
- } else {
- int n_elems = vmstate_n_elems(opaque, field);
- if (n_elems) {
- size = n_elems * field->size;
- }
- }
- if (size) {
- *((void **)base_addr + field->start) = g_malloc(size);
- }
- }
- base_addr = *(void **)base_addr + field->start;
- }
-
- return base_addr;
-}
-
-int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd,
- void *opaque, int version_id)
-{
- VMStateField *field = vmsd->fields;
- int ret = 0;
-
- trace_vmstate_load_state(vmsd->name, version_id);
- if (version_id > vmsd->version_id) {
- trace_vmstate_load_state_end(vmsd->name, "too new", -EINVAL);
- return -EINVAL;
- }
- if (version_id < vmsd->minimum_version_id) {
- if (vmsd->load_state_old &&
- version_id >= vmsd->minimum_version_id_old) {
- ret = vmsd->load_state_old(f, opaque, version_id);
- trace_vmstate_load_state_end(vmsd->name, "old path", ret);
- return ret;
- }
- trace_vmstate_load_state_end(vmsd->name, "too old", -EINVAL);
- return -EINVAL;
- }
- if (vmsd->pre_load) {
- int ret = vmsd->pre_load(opaque);
- if (ret) {
- return ret;
- }
- }
- while (field->name) {
- trace_vmstate_load_state_field(vmsd->name, field->name);
- if ((field->field_exists &&
- field->field_exists(opaque, version_id)) ||
- (!field->field_exists &&
- field->version_id <= version_id)) {
- void *base_addr = vmstate_base_addr(opaque, field, true);
- int i, n_elems = vmstate_n_elems(opaque, field);
- int size = vmstate_size(opaque, field);
-
- for (i = 0; i < n_elems; i++) {
- void *addr = base_addr + size * i;
-
- if (field->flags & VMS_ARRAY_OF_POINTER) {
- addr = *(void **)addr;
- }
- if (field->flags & VMS_STRUCT) {
- ret = vmstate_load_state(f, field->vmsd, addr,
- field->vmsd->version_id);
- } else {
- ret = field->info->get(f, addr, size);
-
- }
- if (ret >= 0) {
- ret = qemu_file_get_error(f);
- }
- if (ret < 0) {
- qemu_file_set_error(f, ret);
- trace_vmstate_load_field_error(field->name, ret);
- return ret;
- }
- }
- } else if (field->flags & VMS_MUST_EXIST) {
- error_report("Input validation failed: %s/%s",
- vmsd->name, field->name);
- return -1;
- }
- field++;
- }
- ret = vmstate_subsection_load(f, vmsd, opaque);
- if (ret != 0) {
- return ret;
- }
- if (vmsd->post_load) {
- ret = vmsd->post_load(opaque, version_id);
- }
- trace_vmstate_load_state_end(vmsd->name, "end", ret);
- return ret;
-}
-
-static int vmfield_name_num(VMStateField *start, VMStateField *search)
-{
- VMStateField *field;
- int found = 0;
-
- for (field = start; field->name; field++) {
- if (!strcmp(field->name, search->name)) {
- if (field == search) {
- return found;
- }
- found++;
- }
- }
-
- return -1;
-}
-
-static bool vmfield_name_is_unique(VMStateField *start, VMStateField *search)
-{
- VMStateField *field;
- int found = 0;
-
- for (field = start; field->name; field++) {
- if (!strcmp(field->name, search->name)) {
- found++;
- /* name found more than once, so it's not unique */
- if (found > 1) {
- return false;
- }
- }
- }
-
- return true;
-}
-
-static const char *vmfield_get_type_name(VMStateField *field)
-{
- const char *type = "unknown";
-
- if (field->flags & VMS_STRUCT) {
- type = "struct";
- } else if (field->info->name) {
- type = field->info->name;
- }
-
- return type;
-}
-
-static bool vmsd_can_compress(VMStateField *field)
-{
- if (field->field_exists) {
- /* Dynamically existing fields mess up compression */
- return false;
- }
-
- if (field->flags & VMS_STRUCT) {
- VMStateField *sfield = field->vmsd->fields;
- while (sfield->name) {
- if (!vmsd_can_compress(sfield)) {
- /* Child elements can't compress, so can't we */
- return false;
- }
- sfield++;
- }
-
- if (field->vmsd->subsections) {
- /* Subsections may come and go, better don't compress */
- return false;
- }
- }
-
- return true;
-}
-
-static void vmsd_desc_field_start(const VMStateDescription *vmsd, QJSON *vmdesc,
- VMStateField *field, int i, int max)
-{
- char *name, *old_name;
- bool is_array = max > 1;
- bool can_compress = vmsd_can_compress(field);
-
- if (!vmdesc) {
- return;
- }
-
- name = g_strdup(field->name);
-
- /* Field name is not unique, need to make it unique */
- if (!vmfield_name_is_unique(vmsd->fields, field)) {
- int num = vmfield_name_num(vmsd->fields, field);
- old_name = name;
- name = g_strdup_printf("%s[%d]", name, num);
- g_free(old_name);
- }
-
- json_start_object(vmdesc, NULL);
- json_prop_str(vmdesc, "name", name);
- if (is_array) {
- if (can_compress) {
- json_prop_int(vmdesc, "array_len", max);
- } else {
- json_prop_int(vmdesc, "index", i);
- }
- }
- json_prop_str(vmdesc, "type", vmfield_get_type_name(field));
-
- if (field->flags & VMS_STRUCT) {
- json_start_object(vmdesc, "struct");
- }
-
- g_free(name);
-}
-
-static void vmsd_desc_field_end(const VMStateDescription *vmsd, QJSON *vmdesc,
- VMStateField *field, size_t size, int i)
-{
- if (!vmdesc) {
- return;
- }
-
- if (field->flags & VMS_STRUCT) {
- /* We printed a struct in between, close its child object */
- json_end_object(vmdesc);
- }
-
- json_prop_int(vmdesc, "size", size);
- json_end_object(vmdesc);
-}
-
-
-bool vmstate_save_needed(const VMStateDescription *vmsd, void *opaque)
-{
- if (vmsd->needed && !vmsd->needed(opaque)) {
- /* optional section not needed */
- return false;
- }
- return true;
-}
-
-
-void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd,
- void *opaque, QJSON *vmdesc)
-{
- VMStateField *field = vmsd->fields;
-
- if (vmsd->pre_save) {
- vmsd->pre_save(opaque);
- }
-
- if (vmdesc) {
- json_prop_str(vmdesc, "vmsd_name", vmsd->name);
- json_prop_int(vmdesc, "version", vmsd->version_id);
- json_start_array(vmdesc, "fields");
- }
-
- while (field->name) {
- if (!field->field_exists ||
- field->field_exists(opaque, vmsd->version_id)) {
- void *base_addr = vmstate_base_addr(opaque, field, false);
- int i, n_elems = vmstate_n_elems(opaque, field);
- int size = vmstate_size(opaque, field);
- int64_t old_offset, written_bytes;
- QJSON *vmdesc_loop = vmdesc;
-
- for (i = 0; i < n_elems; i++) {
- void *addr = base_addr + size * i;
-
- vmsd_desc_field_start(vmsd, vmdesc_loop, field, i, n_elems);
- old_offset = qemu_ftell_fast(f);
-
- if (field->flags & VMS_ARRAY_OF_POINTER) {
- addr = *(void **)addr;
- }
- if (field->flags & VMS_STRUCT) {
- vmstate_save_state(f, field->vmsd, addr, vmdesc_loop);
- } else {
- field->info->put(f, addr, size);
- }
-
- written_bytes = qemu_ftell_fast(f) - old_offset;
- vmsd_desc_field_end(vmsd, vmdesc_loop, field, written_bytes, i);
-
- /* Compressed arrays only care about the first element */
- if (vmdesc_loop && vmsd_can_compress(field)) {
- vmdesc_loop = NULL;
- }
- }
- } else {
- if (field->flags & VMS_MUST_EXIST) {
- error_report("Output state validation failed: %s/%s",
- vmsd->name, field->name);
- assert(!(field->flags & VMS_MUST_EXIST));
- }
- }
- field++;
- }
-
- if (vmdesc) {
- json_end_array(vmdesc);
- }
-
- vmstate_subsection_save(f, vmsd, opaque, vmdesc);
-}
-
-static const VMStateDescription *
-vmstate_get_subsection(const VMStateDescription **sub, char *idstr)
-{
- while (sub && *sub && (*sub)->needed) {
- if (strcmp(idstr, (*sub)->name) == 0) {
- return *sub;
- }
- sub++;
- }
- return NULL;
-}
-
-static int vmstate_subsection_load(QEMUFile *f, const VMStateDescription *vmsd,
- void *opaque)
-{
- trace_vmstate_subsection_load(vmsd->name);
-
- while (qemu_peek_byte(f, 0) == QEMU_VM_SUBSECTION) {
- char idstr[256], *idstr_ret;
- int ret;
- uint8_t version_id, len, size;
- const VMStateDescription *sub_vmsd;
-
- len = qemu_peek_byte(f, 1);
- if (len < strlen(vmsd->name) + 1) {
- /* subsection name has be be "section_name/a" */
- trace_vmstate_subsection_load_bad(vmsd->name, "(short)");
- return 0;
- }
- size = qemu_peek_buffer(f, (uint8_t **)&idstr_ret, len, 2);
- if (size != len) {
- trace_vmstate_subsection_load_bad(vmsd->name, "(peek fail)");
- return 0;
- }
- memcpy(idstr, idstr_ret, size);
- idstr[size] = 0;
-
- if (strncmp(vmsd->name, idstr, strlen(vmsd->name)) != 0) {
- trace_vmstate_subsection_load_bad(vmsd->name, idstr);
- /* it don't have a valid subsection name */
- return 0;
- }
- sub_vmsd = vmstate_get_subsection(vmsd->subsections, idstr);
- if (sub_vmsd == NULL) {
- trace_vmstate_subsection_load_bad(vmsd->name, "(lookup)");
- return -ENOENT;
- }
- qemu_file_skip(f, 1); /* subsection */
- qemu_file_skip(f, 1); /* len */
- qemu_file_skip(f, len); /* idstr */
- version_id = qemu_get_be32(f);
-
- ret = vmstate_load_state(f, sub_vmsd, opaque, version_id);
- if (ret) {
- trace_vmstate_subsection_load_bad(vmsd->name, "(child)");
- return ret;
- }
- }
-
- trace_vmstate_subsection_load_good(vmsd->name);
- return 0;
-}
-
-static void vmstate_subsection_save(QEMUFile *f, const VMStateDescription *vmsd,
- void *opaque, QJSON *vmdesc)
-{
- const VMStateDescription **sub = vmsd->subsections;
- bool subsection_found = false;
-
- while (sub && *sub && (*sub)->needed) {
- if ((*sub)->needed(opaque)) {
- const VMStateDescription *vmsd = *sub;
- uint8_t len;
-
- if (vmdesc) {
- /* Only create subsection array when we have any */
- if (!subsection_found) {
- json_start_array(vmdesc, "subsections");
- subsection_found = true;
- }
-
- json_start_object(vmdesc, NULL);
- }
-
- qemu_put_byte(f, QEMU_VM_SUBSECTION);
- len = strlen(vmsd->name);
- qemu_put_byte(f, len);
- qemu_put_buffer(f, (uint8_t *)vmsd->name, len);
- qemu_put_be32(f, vmsd->version_id);
- vmstate_save_state(f, vmsd, opaque, vmdesc);
-
- if (vmdesc) {
- json_end_object(vmdesc);
- }
- }
- sub++;
- }
-
- if (vmdesc && subsection_found) {
- json_end_array(vmdesc);
- }
-}
-
-/* bool */
-
-static int get_bool(QEMUFile *f, void *pv, size_t size)
-{
- bool *v = pv;
- *v = qemu_get_byte(f);
- return 0;
-}
-
-static void put_bool(QEMUFile *f, void *pv, size_t size)
-{
- bool *v = pv;
- qemu_put_byte(f, *v);
-}
-
-const VMStateInfo vmstate_info_bool = {
- .name = "bool",
- .get = get_bool,
- .put = put_bool,
-};
-
-/* 8 bit int */
-
-static int get_int8(QEMUFile *f, void *pv, size_t size)
-{
- int8_t *v = pv;
- qemu_get_s8s(f, v);
- return 0;
-}
-
-static void put_int8(QEMUFile *f, void *pv, size_t size)
-{
- int8_t *v = pv;
- qemu_put_s8s(f, v);
-}
-
-const VMStateInfo vmstate_info_int8 = {
- .name = "int8",
- .get = get_int8,
- .put = put_int8,
-};
-
-/* 16 bit int */
-
-static int get_int16(QEMUFile *f, void *pv, size_t size)
-{
- int16_t *v = pv;
- qemu_get_sbe16s(f, v);
- return 0;
-}
-
-static void put_int16(QEMUFile *f, void *pv, size_t size)
-{
- int16_t *v = pv;
- qemu_put_sbe16s(f, v);
-}
-
-const VMStateInfo vmstate_info_int16 = {
- .name = "int16",
- .get = get_int16,
- .put = put_int16,
-};
-
-/* 32 bit int */
-
-static int get_int32(QEMUFile *f, void *pv, size_t size)
-{
- int32_t *v = pv;
- qemu_get_sbe32s(f, v);
- return 0;
-}
-
-static void put_int32(QEMUFile *f, void *pv, size_t size)
-{
- int32_t *v = pv;
- qemu_put_sbe32s(f, v);
-}
-
-const VMStateInfo vmstate_info_int32 = {
- .name = "int32",
- .get = get_int32,
- .put = put_int32,
-};
-
-/* 32 bit int. See that the received value is the same than the one
- in the field */
-
-static int get_int32_equal(QEMUFile *f, void *pv, size_t size)
-{
- int32_t *v = pv;
- int32_t v2;
- qemu_get_sbe32s(f, &v2);
-
- if (*v == v2) {
- return 0;
- }
- return -EINVAL;
-}
-
-const VMStateInfo vmstate_info_int32_equal = {
- .name = "int32 equal",
- .get = get_int32_equal,
- .put = put_int32,
-};
-
-/* 32 bit int. Check that the received value is non-negative
- * and less than or equal to the one in the field.
- */
-
-static int get_int32_le(QEMUFile *f, void *pv, size_t size)
-{
- int32_t *cur = pv;
- int32_t loaded;
- qemu_get_sbe32s(f, &loaded);
-
- if (loaded >= 0 && loaded <= *cur) {
- *cur = loaded;
- return 0;
- }
- return -EINVAL;
-}
-
-const VMStateInfo vmstate_info_int32_le = {
- .name = "int32 le",
- .get = get_int32_le,
- .put = put_int32,
-};
-
-/* 64 bit int */
-
-static int get_int64(QEMUFile *f, void *pv, size_t size)
-{
- int64_t *v = pv;
- qemu_get_sbe64s(f, v);
- return 0;
-}
-
-static void put_int64(QEMUFile *f, void *pv, size_t size)
-{
- int64_t *v = pv;
- qemu_put_sbe64s(f, v);
-}
-
-const VMStateInfo vmstate_info_int64 = {
- .name = "int64",
- .get = get_int64,
- .put = put_int64,
-};
-
-/* 8 bit unsigned int */
-
-static int get_uint8(QEMUFile *f, void *pv, size_t size)
-{
- uint8_t *v = pv;
- qemu_get_8s(f, v);
- return 0;
-}
-
-static void put_uint8(QEMUFile *f, void *pv, size_t size)
-{
- uint8_t *v = pv;
- qemu_put_8s(f, v);
-}
-
-const VMStateInfo vmstate_info_uint8 = {
- .name = "uint8",
- .get = get_uint8,
- .put = put_uint8,
-};
-
-/* 16 bit unsigned int */
-
-static int get_uint16(QEMUFile *f, void *pv, size_t size)
-{
- uint16_t *v = pv;
- qemu_get_be16s(f, v);
- return 0;
-}
-
-static void put_uint16(QEMUFile *f, void *pv, size_t size)
-{
- uint16_t *v = pv;
- qemu_put_be16s(f, v);
-}
-
-const VMStateInfo vmstate_info_uint16 = {
- .name = "uint16",
- .get = get_uint16,
- .put = put_uint16,
-};
-
-/* 32 bit unsigned int */
-
-static int get_uint32(QEMUFile *f, void *pv, size_t size)
-{
- uint32_t *v = pv;
- qemu_get_be32s(f, v);
- return 0;
-}
-
-static void put_uint32(QEMUFile *f, void *pv, size_t size)
-{
- uint32_t *v = pv;
- qemu_put_be32s(f, v);
-}
-
-const VMStateInfo vmstate_info_uint32 = {
- .name = "uint32",
- .get = get_uint32,
- .put = put_uint32,
-};
-
-/* 32 bit uint. See that the received value is the same than the one
- in the field */
-
-static int get_uint32_equal(QEMUFile *f, void *pv, size_t size)
-{
- uint32_t *v = pv;
- uint32_t v2;
- qemu_get_be32s(f, &v2);
-
- if (*v == v2) {
- return 0;
- }
- return -EINVAL;
-}
-
-const VMStateInfo vmstate_info_uint32_equal = {
- .name = "uint32 equal",
- .get = get_uint32_equal,
- .put = put_uint32,
-};
-
-/* 64 bit unsigned int */
-
-static int get_uint64(QEMUFile *f, void *pv, size_t size)
-{
- uint64_t *v = pv;
- qemu_get_be64s(f, v);
- return 0;
-}
-
-static void put_uint64(QEMUFile *f, void *pv, size_t size)
-{
- uint64_t *v = pv;
- qemu_put_be64s(f, v);
-}
-
-const VMStateInfo vmstate_info_uint64 = {
- .name = "uint64",
- .get = get_uint64,
- .put = put_uint64,
-};
-
-/* 64 bit unsigned int. See that the received value is the same than the one
- in the field */
-
-static int get_uint64_equal(QEMUFile *f, void *pv, size_t size)
-{
- uint64_t *v = pv;
- uint64_t v2;
- qemu_get_be64s(f, &v2);
-
- if (*v == v2) {
- return 0;
- }
- return -EINVAL;
-}
-
-const VMStateInfo vmstate_info_uint64_equal = {
- .name = "int64 equal",
- .get = get_uint64_equal,
- .put = put_uint64,
-};
-
-/* 8 bit int. See that the received value is the same than the one
- in the field */
-
-static int get_uint8_equal(QEMUFile *f, void *pv, size_t size)
-{
- uint8_t *v = pv;
- uint8_t v2;
- qemu_get_8s(f, &v2);
-
- if (*v == v2) {
- return 0;
- }
- return -EINVAL;
-}
-
-const VMStateInfo vmstate_info_uint8_equal = {
- .name = "uint8 equal",
- .get = get_uint8_equal,
- .put = put_uint8,
-};
-
-/* 16 bit unsigned int int. See that the received value is the same than the one
- in the field */
-
-static int get_uint16_equal(QEMUFile *f, void *pv, size_t size)
-{
- uint16_t *v = pv;
- uint16_t v2;
- qemu_get_be16s(f, &v2);
-
- if (*v == v2) {
- return 0;
- }
- return -EINVAL;
-}
-
-const VMStateInfo vmstate_info_uint16_equal = {
- .name = "uint16 equal",
- .get = get_uint16_equal,
- .put = put_uint16,
-};
-
-/* floating point */
-
-static int get_float64(QEMUFile *f, void *pv, size_t size)
-{
- float64 *v = pv;
-
- *v = make_float64(qemu_get_be64(f));
- return 0;
-}
-
-static void put_float64(QEMUFile *f, void *pv, size_t size)
-{
- uint64_t *v = pv;
-
- qemu_put_be64(f, float64_val(*v));
-}
-
-const VMStateInfo vmstate_info_float64 = {
- .name = "float64",
- .get = get_float64,
- .put = put_float64,
-};
-
-/* CPU_DoubleU type */
-
-static int get_cpudouble(QEMUFile *f, void *pv, size_t size)
-{
- CPU_DoubleU *v = pv;
- qemu_get_be32s(f, &v->l.upper);
- qemu_get_be32s(f, &v->l.lower);
- return 0;
-}
-
-static void put_cpudouble(QEMUFile *f, void *pv, size_t size)
-{
- CPU_DoubleU *v = pv;
- qemu_put_be32s(f, &v->l.upper);
- qemu_put_be32s(f, &v->l.lower);
-}
-
-const VMStateInfo vmstate_info_cpudouble = {
- .name = "CPU_Double_U",
- .get = get_cpudouble,
- .put = put_cpudouble,
-};
-
-/* uint8_t buffers */
-
-static int get_buffer(QEMUFile *f, void *pv, size_t size)
-{
- uint8_t *v = pv;
- qemu_get_buffer(f, v, size);
- return 0;
-}
-
-static void put_buffer(QEMUFile *f, void *pv, size_t size)
-{
- uint8_t *v = pv;
- qemu_put_buffer(f, v, size);
-}
-
-const VMStateInfo vmstate_info_buffer = {
- .name = "buffer",
- .get = get_buffer,
- .put = put_buffer,
-};
-
-/* unused buffers: space that was used for some fields that are
- not useful anymore */
-
-static int get_unused_buffer(QEMUFile *f, void *pv, size_t size)
-{
- uint8_t buf[1024];
- int block_len;
-
- while (size > 0) {
- block_len = MIN(sizeof(buf), size);
- size -= block_len;
- qemu_get_buffer(f, buf, block_len);
- }
- return 0;
-}
-
-static void put_unused_buffer(QEMUFile *f, void *pv, size_t size)
-{
- static const uint8_t buf[1024];
- int block_len;
-
- while (size > 0) {
- block_len = MIN(sizeof(buf), size);
- size -= block_len;
- qemu_put_buffer(f, buf, block_len);
- }
-}
-
-const VMStateInfo vmstate_info_unused_buffer = {
- .name = "unused_buffer",
- .get = get_unused_buffer,
- .put = put_unused_buffer,
-};
-
-/* bitmaps (as defined by bitmap.h). Note that size here is the size
- * of the bitmap in bits. The on-the-wire format of a bitmap is 64
- * bit words with the bits in big endian order. The in-memory format
- * is an array of 'unsigned long', which may be either 32 or 64 bits.
- */
-/* This is the number of 64 bit words sent over the wire */
-#define BITS_TO_U64S(nr) DIV_ROUND_UP(nr, 64)
-static int get_bitmap(QEMUFile *f, void *pv, size_t size)
-{
- unsigned long *bmp = pv;
- int i, idx = 0;
- for (i = 0; i < BITS_TO_U64S(size); i++) {
- uint64_t w = qemu_get_be64(f);
- bmp[idx++] = w;
- if (sizeof(unsigned long) == 4 && idx < BITS_TO_LONGS(size)) {
- bmp[idx++] = w >> 32;
- }
- }
- return 0;
-}
-
-static void put_bitmap(QEMUFile *f, void *pv, size_t size)
-{
- unsigned long *bmp = pv;
- int i, idx = 0;
- for (i = 0; i < BITS_TO_U64S(size); i++) {
- uint64_t w = bmp[idx++];
- if (sizeof(unsigned long) == 4 && idx < BITS_TO_LONGS(size)) {
- w |= ((uint64_t)bmp[idx++]) << 32;
- }
- qemu_put_be64(f, w);
- }
-}
-
-const VMStateInfo vmstate_info_bitmap = {
- .name = "bitmap",
- .get = get_bitmap,
- .put = put_bitmap,
-};