diff --git a/hw/hw.h b/hw/hw.h index 9a1ba18a861bd9eca69a038175d7279d9e36af8b..a8534fa1e8b6b2ab23224478c79e911a9a1701ce 100644 --- a/hw/hw.h +++ b/hw/hw.h @@ -282,12 +282,14 @@ struct VMStateInfo { enum VMStateFlags { VMS_SINGLE = 0x001, VMS_POINTER = 0x002, + VMS_ARRAY = 0x004, }; typedef struct { const char *name; size_t offset; size_t size; + int num; const VMStateInfo *info; enum VMStateFlags flags; int version_id; @@ -314,6 +316,8 @@ extern const VMStateInfo vmstate_info_uint64; extern const VMStateInfo vmstate_info_timer; +#define type_check_array(t1,t2,n) ((t1(*)[n])0 - (t2*)0) + #define VMSTATE_SINGLE(_field, _state, _version, _info, _type) { \ .name = (stringify(_field)), \ .version_id = (_version), \ @@ -334,7 +338,19 @@ extern const VMStateInfo vmstate_info_timer; + type_check(_type,typeof_field(_state, _field)) \ } +#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 = offsetof(_state, _field) \ + + type_check_array(_type,typeof_field(_state, _field),_num) \ +} + /* _f : field name + _n : num of elements _s : struct state name _v : version */ @@ -381,6 +397,18 @@ extern const VMStateInfo vmstate_info_timer; #define VMSTATE_TIMER(_f, _s) \ VMSTATE_TIMER_V(_f, _s, 0) +#define VMSTATE_UINT32_ARRAY_V(_f, _s, _n, _v) \ + VMSTATE_ARRAY(_f, _s, _n, _v, vmstate_info_uint32, uint32_t) + +#define VMSTATE_UINT32_ARRAY(_f, _s, _n) \ + VMSTATE_UINT32_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_END_OF_LIST() \ {} diff --git a/savevm.c b/savevm.c index 7e56a89531eab509543935ba2f73174ba5fc8351..7bcb783f96f6889f1afce52ebe780ee074cb4bb4 100644 --- a/savevm.c +++ b/savevm.c @@ -972,15 +972,21 @@ int vmstate_load_state(QEMUFile *f, const VMStateDescription *vmsd, } while(field->name) { if (field->version_id <= version_id) { - void *addr = opaque + field->offset; - int ret; + void *base_addr = opaque + field->offset; + int ret, i, n_elems = 1; + if (field->flags & VMS_ARRAY) { + n_elems = field->num; + } if (field->flags & VMS_POINTER) { - addr = *(void **)addr; + base_addr = *(void **)base_addr; } - ret = field->info->get(f, addr, field->size); - if (ret < 0) { - return ret; + for (i = 0; i < n_elems; i++) { + void *addr = base_addr + field->size * i; + ret = field->info->get(f, addr, field->size); + if (ret < 0) { + return ret; + } } } field++; @@ -994,12 +1000,19 @@ void vmstate_save_state(QEMUFile *f, const VMStateDescription *vmsd, VMStateField *field = vmsd->fields; while(field->name) { - const void *addr = opaque + field->offset; + const void *base_addr = opaque + field->offset; + int i, n_elems = 1; + if (field->flags & VMS_ARRAY) { + n_elems = field->num; + } if (field->flags & VMS_POINTER) { - addr = *(void **)addr; + base_addr = *(void **)base_addr; + } + for (i = 0; i < n_elems; i++) { + const void *addr = base_addr + field->size * i; + field->info->put(f, addr, field->size); } - field->info->put(f, addr, field->size); field++; } }