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Re: [Qemu-ppc] [Qemu-devel] [QEMU PATCH v5 3/6] migration: extend VMStat


From: Jianjun Duan
Subject: Re: [Qemu-ppc] [Qemu-devel] [QEMU PATCH v5 3/6] migration: extend VMStateInfo
Date: Fri, 7 Oct 2016 09:35:31 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0


On 10/07/2016 05:08 AM, Dr. David Alan Gilbert wrote:
> * Jianjun Duan (address@hidden) wrote:
>> Current migration code cannot handle some data structures such as
>> QTAILQ in qemu/queue.h. Here we extend the signatures of put/get
>> in VMStateInfo so that customized handling is supported.
>>
>> Signed-off-by: Jianjun Duan <address@hidden>
>> ---
>>  hw/net/vmxnet3.c            | 18 ++++++---
>>  hw/nvram/eeprom93xx.c       |  6 ++-
>>  hw/nvram/fw_cfg.c           |  6 ++-
>>  hw/pci/msix.c               |  6 ++-
>>  hw/pci/pci.c                | 12 ++++--
>>  hw/pci/shpc.c               |  5 ++-
>>  hw/scsi/scsi-bus.c          |  6 ++-
>>  hw/timer/twl92230.c         |  6 ++-
>>  hw/usb/redirect.c           | 18 ++++++---
>>  hw/virtio/virtio-pci.c      |  6 ++-
>>  hw/virtio/virtio.c          |  6 ++-
>>  include/migration/vmstate.h | 10 +++--
>>  migration/savevm.c          |  5 ++-
>>  migration/vmstate.c         | 95 
>> ++++++++++++++++++++++++++++-----------------
>>  target-alpha/machine.c      |  5 ++-
>>  target-arm/machine.c        | 12 ++++--
>>  target-i386/machine.c       | 21 ++++++----
>>  target-mips/machine.c       | 10 +++--
>>  target-ppc/machine.c        | 10 +++--
>>  target-sparc/machine.c      |  5 ++-
>>  20 files changed, 171 insertions(+), 97 deletions(-)
>>
> 
> <snip>
> 
>> diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c
>> index 444672a..2ca4b46 100644
>> --- a/hw/usb/redirect.c
>> +++ b/hw/usb/redirect.c
>> @@ -2154,7 +2154,8 @@ static int usbredir_post_load(void *priv, int 
>> version_id)
>>  }
>>  
>>  /* For usbredirparser migration */
>> -static void usbredir_put_parser(QEMUFile *f, void *priv, size_t unused)
>> +static void usbredir_put_parser(QEMUFile *f, void *priv, size_t unused,
>> +                                void *opaque, QJSON *vmdesc)
>>  {
>>      USBRedirDevice *dev = priv;
>>      uint8_t *data;
>> @@ -2174,7 +2175,8 @@ static void usbredir_put_parser(QEMUFile *f, void 
>> *priv, size_t unused)
>>      free(data);
>>  }
>>  
>> -static int usbredir_get_parser(QEMUFile *f, void *priv, size_t unused)
>> +static int usbredir_get_parser(QEMUFile *f, void *priv, size_t unused,
>> +                               void *opaque)
> 
> Neither of these built for me; I had to change those to VMStateField rather 
> than void *;
> 
> also is this series tested ontop of Halil's patches - because without them
> I'm finding I also had to fix up most of the other virtio devices.
> 
> Dave

I built it on top of ppc-for-2.8 without problems. Is Hail's patch in
ppc-for-2.8 yet?

Thanks,
Jianjun

> 
> 
>>      USBRedirDevice *dev = priv;
>>      uint8_t *data;
>> @@ -2217,7 +2219,8 @@ static const VMStateInfo usbredir_parser_vmstate_info 
>> = {
>>  
>>  
>>  /* For buffered packets (iso/irq) queue migration */
>> -static void usbredir_put_bufpq(QEMUFile *f, void *priv, size_t unused)
>> +static void usbredir_put_bufpq(QEMUFile *f, void *priv, size_t unused,
>> +                               VMStateField *field, QJSON *vmdesc)
>>  {
>>      struct endp_data *endp = priv;
>>      USBRedirDevice *dev = endp->dev;
>> @@ -2237,7 +2240,8 @@ static void usbredir_put_bufpq(QEMUFile *f, void 
>> *priv, size_t unused)
>>      assert(i == endp->bufpq_size);
>>  }
>>  
>> -static int usbredir_get_bufpq(QEMUFile *f, void *priv, size_t unused)
>> +static int usbredir_get_bufpq(QEMUFile *f, void *priv, size_t unused,
>> +                              VMStateField *field)
>>  {
>>      struct endp_data *endp = priv;
>>      USBRedirDevice *dev = endp->dev;
>> @@ -2340,7 +2344,8 @@ static const VMStateDescription usbredir_ep_vmstate = {
>>  
>>  
>>  /* For PacketIdQueue migration */
>> -static void usbredir_put_packet_id_q(QEMUFile *f, void *priv, size_t unused)
>> +static void usbredir_put_packet_id_q(QEMUFile *f, void *priv, size_t unused,
>> +                                     VMStateField *field, QJSON *vmdesc)
>>  {
>>      struct PacketIdQueue *q = priv;
>>      USBRedirDevice *dev = q->dev;
>> @@ -2356,7 +2361,8 @@ static void usbredir_put_packet_id_q(QEMUFile *f, void 
>> *priv, size_t unused)
>>      assert(remain == 0);
>>  }
>>  
>> -static int usbredir_get_packet_id_q(QEMUFile *f, void *priv, size_t unused)
>> +static int usbredir_get_packet_id_q(QEMUFile *f, void *priv, size_t unused,
>> +                                    VMStateField *field)
>>  {
>>      struct PacketIdQueue *q = priv;
>>      USBRedirDevice *dev = q->dev;
>> diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
>> index 2d60a00..38a7abd 100644
>> --- a/hw/virtio/virtio-pci.c
>> +++ b/hw/virtio/virtio-pci.c
>> @@ -108,7 +108,8 @@ static bool virtio_pci_has_extra_state(DeviceState *d)
>>      return proxy->flags & VIRTIO_PCI_FLAG_MIGRATE_EXTRA;
>>  }
>>  
>> -static int get_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size)
>> +static int get_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size,
>> +                                       VMStateField *field)
>>  {
>>      VirtIOPCIProxy *proxy = pv;
>>      int i;
>> @@ -137,7 +138,8 @@ static void 
>> virtio_pci_save_modern_queue_state(VirtIOPCIQueue *vq,
>>      qemu_put_be32(f, vq->used[1]);
>>  }
>>  
>> -static void put_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size)
>> +static void put_virtio_pci_modern_state(QEMUFile *f, void *pv, size_t size,
>> +                                        VMStateField *field, QJSON *vmdesc)
>>  {
>>      VirtIOPCIProxy *proxy = pv;
>>      int i;
>> diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
>> index 18ce333..ade2683 100644
>> --- a/hw/virtio/virtio.c
>> +++ b/hw/virtio/virtio.c
>> @@ -1467,7 +1467,8 @@ static const VMStateDescription 
>> vmstate_virtio_ringsize = {
>>      }
>>  };
>>  
>> -static int get_extra_state(QEMUFile *f, void *pv, size_t size)
>> +static int get_extra_state(QEMUFile *f, void *pv, size_t size,
>> +                           VMStateField *field)
>>  {
>>      VirtIODevice *vdev = pv;
>>      BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
>> @@ -1480,7 +1481,8 @@ static int get_extra_state(QEMUFile *f, void *pv, 
>> size_t size)
>>      }
>>  }
>>  
>> -static void put_extra_state(QEMUFile *f, void *pv, size_t size)
>> +static void put_extra_state(QEMUFile *f, void *pv, size_t size,
>> +                            VMStateField *field, QJSON *vmdesc)
>>  {
>>      VirtIODevice *vdev = pv;
>>      BusState *qbus = qdev_get_parent_bus(DEVICE(vdev));
>> diff --git a/include/migration/vmstate.h b/include/migration/vmstate.h
>> index 1638ee5..459dd4a 100644
>> --- a/include/migration/vmstate.h
>> +++ b/include/migration/vmstate.h
>> @@ -81,11 +81,13 @@ void unregister_savevm(DeviceState *dev, const char 
>> *idstr, void *opaque);
>>  
>>  typedef struct VMStateInfo VMStateInfo;
>>  typedef struct VMStateDescription VMStateDescription;
>> +typedef struct VMStateField VMStateField;
>>  
>>  struct VMStateInfo {
>>      const char *name;
>> -    int (*get)(QEMUFile *f, void *pv, size_t size);
>> -    void (*put)(QEMUFile *f, void *pv, size_t size);
>> +    int (*get)(QEMUFile *f, void *pv, size_t size, VMStateField *field);
>> +    void (*put)(QEMUFile *f, void *pv, size_t size, VMStateField *field,
>> +                QJSON *vmdesc);
>>  };
>>  
>>  enum VMStateFlags {
>> @@ -186,7 +188,7 @@ enum VMStateFlags {
>>      VMS_MULTIPLY_ELEMENTS = 0x4000,
>>  };
>>  
>> -typedef struct {
>> +struct VMStateField {
>>      const char *name;
>>      size_t offset;
>>      size_t size;
>> @@ -199,7 +201,7 @@ typedef struct {
>>      const VMStateDescription *vmsd;
>>      int version_id;
>>      bool (*field_exists)(void *opaque, int version_id);
>> -} VMStateField;
>> +};
>>  
>>  struct VMStateDescription {
>>      const char *name;
>> diff --git a/migration/savevm.c b/migration/savevm.c
>> index ef5c3d1..13b53ad 100644
>> --- a/migration/savevm.c
>> +++ b/migration/savevm.c
>> @@ -220,14 +220,15 @@ void timer_get(QEMUFile *f, QEMUTimer *ts)
>>   * Not in vmstate.c to not add qemu-timer.c as dependency to vmstate.c
>>   */
>>  
>> -static int get_timer(QEMUFile *f, void *pv, size_t size)
>> +static int get_timer(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field)
>>  {
>>      QEMUTimer *v = pv;
>>      timer_get(f, v);
>>      return 0;
>>  }
>>  
>> -static void put_timer(QEMUFile *f, void *pv, size_t size)
>> +static void put_timer(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                QJSON *vmdesc)
>>  {
>>      QEMUTimer *v = pv;
>>      timer_put(f, v);
>> diff --git a/migration/vmstate.c b/migration/vmstate.c
>> index fc29acf..66802cb 100644
>> --- a/migration/vmstate.c
>> +++ b/migration/vmstate.c
>> @@ -122,7 +122,7 @@ int vmstate_load_state(QEMUFile *f, const 
>> VMStateDescription *vmsd,
>>                      ret = vmstate_load_state(f, field->vmsd, addr,
>>                                               field->vmsd->version_id);
>>                  } else {
>> -                    ret = field->info->get(f, addr, size);
>> +                    ret = field->info->get(f, addr, size, NULL);
>>  
>>                  }
>>                  if (ret >= 0) {
>> @@ -328,7 +328,7 @@ void vmstate_save_state(QEMUFile *f, const 
>> VMStateDescription *vmsd,
>>                  if (field->flags & VMS_STRUCT) {
>>                      vmstate_save_state(f, field->vmsd, addr, vmdesc_loop);
>>                  } else {
>> -                    field->info->put(f, addr, size);
>> +                    field->info->put(f, addr, size, NULL, NULL);
>>                  }
>>  
>>                  written_bytes = qemu_ftell_fast(f) - old_offset;
>> @@ -461,14 +461,15 @@ static void vmstate_subsection_save(QEMUFile *f, const 
>> VMStateDescription *vmsd,
>>  
>>  /* bool */
>>  
>> -static int get_bool(QEMUFile *f, void *pv, size_t size)
>> +static int get_bool(QEMUFile *f, void *pv, size_t size, VMStateField *field)
>>  {
>>      bool *v = pv;
>>      *v = qemu_get_byte(f);
>>      return 0;
>>  }
>>  
>> -static void put_bool(QEMUFile *f, void *pv, size_t size)
>> +static void put_bool(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                     QJSON *vmdesc)
>>  {
>>      bool *v = pv;
>>      qemu_put_byte(f, *v);
>> @@ -482,14 +483,15 @@ const VMStateInfo vmstate_info_bool = {
>>  
>>  /* 8 bit int */
>>  
>> -static int get_int8(QEMUFile *f, void *pv, size_t size)
>> +static int get_int8(QEMUFile *f, void *pv, size_t size, VMStateField *field)
>>  {
>>      int8_t *v = pv;
>>      qemu_get_s8s(f, v);
>>      return 0;
>>  }
>>  
>> -static void put_int8(QEMUFile *f, void *pv, size_t size)
>> +static void put_int8(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                     QJSON *vmdesc)
>>  {
>>      int8_t *v = pv;
>>      qemu_put_s8s(f, v);
>> @@ -503,14 +505,15 @@ const VMStateInfo vmstate_info_int8 = {
>>  
>>  /* 16 bit int */
>>  
>> -static int get_int16(QEMUFile *f, void *pv, size_t size)
>> +static int get_int16(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field)
>>  {
>>      int16_t *v = pv;
>>      qemu_get_sbe16s(f, v);
>>      return 0;
>>  }
>>  
>> -static void put_int16(QEMUFile *f, void *pv, size_t size)
>> +static void put_int16(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                      QJSON *vmdesc)
>>  {
>>      int16_t *v = pv;
>>      qemu_put_sbe16s(f, v);
>> @@ -524,14 +527,15 @@ const VMStateInfo vmstate_info_int16 = {
>>  
>>  /* 32 bit int */
>>  
>> -static int get_int32(QEMUFile *f, void *pv, size_t size)
>> +static int get_int32(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field)
>>  {
>>      int32_t *v = pv;
>>      qemu_get_sbe32s(f, v);
>>      return 0;
>>  }
>>  
>> -static void put_int32(QEMUFile *f, void *pv, size_t size)
>> +static void put_int32(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                      QJSON *vmdesc)
>>  {
>>      int32_t *v = pv;
>>      qemu_put_sbe32s(f, v);
>> @@ -546,7 +550,8 @@ const VMStateInfo vmstate_info_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)
>> +static int get_int32_equal(QEMUFile *f, void *pv, size_t size,
>> +                           VMStateField *field)
>>  {
>>      int32_t *v = pv;
>>      int32_t v2;
>> @@ -568,7 +573,7 @@ const VMStateInfo vmstate_info_int32_equal = {
>>   * and less than or equal to the one in the field.
>>   */
>>  
>> -static int get_int32_le(QEMUFile *f, void *pv, size_t size)
>> +static int get_int32_le(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field)
>>  {
>>      int32_t *cur = pv;
>>      int32_t loaded;
>> @@ -589,14 +594,15 @@ const VMStateInfo vmstate_info_int32_le = {
>>  
>>  /* 64 bit int */
>>  
>> -static int get_int64(QEMUFile *f, void *pv, size_t size)
>> +static int get_int64(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field)
>>  {
>>      int64_t *v = pv;
>>      qemu_get_sbe64s(f, v);
>>      return 0;
>>  }
>>  
>> -static void put_int64(QEMUFile *f, void *pv, size_t size)
>> +static void put_int64(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                      QJSON *vmdesc)
>>  {
>>      int64_t *v = pv;
>>      qemu_put_sbe64s(f, v);
>> @@ -610,14 +616,15 @@ const VMStateInfo vmstate_info_int64 = {
>>  
>>  /* 8 bit unsigned int */
>>  
>> -static int get_uint8(QEMUFile *f, void *pv, size_t size)
>> +static int get_uint8(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field)
>>  {
>>      uint8_t *v = pv;
>>      qemu_get_8s(f, v);
>>      return 0;
>>  }
>>  
>> -static void put_uint8(QEMUFile *f, void *pv, size_t size)
>> +static void put_uint8(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                      QJSON *vmdesc)
>>  {
>>      uint8_t *v = pv;
>>      qemu_put_8s(f, v);
>> @@ -631,14 +638,15 @@ const VMStateInfo vmstate_info_uint8 = {
>>  
>>  /* 16 bit unsigned int */
>>  
>> -static int get_uint16(QEMUFile *f, void *pv, size_t size)
>> +static int get_uint16(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field)
>>  {
>>      uint16_t *v = pv;
>>      qemu_get_be16s(f, v);
>>      return 0;
>>  }
>>  
>> -static void put_uint16(QEMUFile *f, void *pv, size_t size)
>> +static void put_uint16(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                       QJSON *vmdesc)
>>  {
>>      uint16_t *v = pv;
>>      qemu_put_be16s(f, v);
>> @@ -652,14 +660,15 @@ const VMStateInfo vmstate_info_uint16 = {
>>  
>>  /* 32 bit unsigned int */
>>  
>> -static int get_uint32(QEMUFile *f, void *pv, size_t size)
>> +static int get_uint32(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field)
>>  {
>>      uint32_t *v = pv;
>>      qemu_get_be32s(f, v);
>>      return 0;
>>  }
>>  
>> -static void put_uint32(QEMUFile *f, void *pv, size_t size)
>> +static void put_uint32(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                       QJSON *vmdesc)
>>  {
>>      uint32_t *v = pv;
>>      qemu_put_be32s(f, v);
>> @@ -674,7 +683,8 @@ const VMStateInfo vmstate_info_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)
>> +static int get_uint32_equal(QEMUFile *f, void *pv, size_t size,
>> +                            VMStateField *field)
>>  {
>>      uint32_t *v = pv;
>>      uint32_t v2;
>> @@ -694,14 +704,15 @@ const VMStateInfo vmstate_info_uint32_equal = {
>>  
>>  /* 64 bit unsigned int */
>>  
>> -static int get_uint64(QEMUFile *f, void *pv, size_t size)
>> +static int get_uint64(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field)
>>  {
>>      uint64_t *v = pv;
>>      qemu_get_be64s(f, v);
>>      return 0;
>>  }
>>  
>> -static void put_uint64(QEMUFile *f, void *pv, size_t size)
>> +static void put_uint64(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                       QJSON *vmdesc)
>>  {
>>      uint64_t *v = pv;
>>      qemu_put_be64s(f, v);
>> @@ -716,7 +727,8 @@ const VMStateInfo vmstate_info_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)
>> +static int get_uint64_equal(QEMUFile *f, void *pv, size_t size,
>> +                            VMStateField *field)
>>  {
>>      uint64_t *v = pv;
>>      uint64_t v2;
>> @@ -737,7 +749,8 @@ const VMStateInfo vmstate_info_uint64_equal = {
>>  /* 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)
>> +static int get_uint8_equal(QEMUFile *f, void *pv, size_t size,
>> +                           VMStateField *field)
>>  {
>>      uint8_t *v = pv;
>>      uint8_t v2;
>> @@ -758,7 +771,8 @@ const VMStateInfo vmstate_info_uint8_equal = {
>>  /* 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)
>> +static int get_uint16_equal(QEMUFile *f, void *pv, size_t size,
>> +                            VMStateField *field)
>>  {
>>      uint16_t *v = pv;
>>      uint16_t v2;
>> @@ -778,7 +792,8 @@ const VMStateInfo vmstate_info_uint16_equal = {
>>  
>>  /* floating point */
>>  
>> -static int get_float64(QEMUFile *f, void *pv, size_t size)
>> +static int get_float64(QEMUFile *f, void *pv, size_t size,
>> +                       VMStateField *field)
>>  {
>>      float64 *v = pv;
>>  
>> @@ -786,7 +801,8 @@ static int get_float64(QEMUFile *f, void *pv, size_t 
>> size)
>>      return 0;
>>  }
>>  
>> -static void put_float64(QEMUFile *f, void *pv, size_t size)
>> +static void put_float64(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                        QJSON *vmdesc)
>>  {
>>      uint64_t *v = pv;
>>  
>> @@ -801,7 +817,8 @@ const VMStateInfo vmstate_info_float64 = {
>>  
>>  /* CPU_DoubleU type */
>>  
>> -static int get_cpudouble(QEMUFile *f, void *pv, size_t size)
>> +static int get_cpudouble(QEMUFile *f, void *pv, size_t size,
>> +                         VMStateField *field)
>>  {
>>      CPU_DoubleU *v = pv;
>>      qemu_get_be32s(f, &v->l.upper);
>> @@ -809,7 +826,8 @@ static int get_cpudouble(QEMUFile *f, void *pv, size_t 
>> size)
>>      return 0;
>>  }
>>  
>> -static void put_cpudouble(QEMUFile *f, void *pv, size_t size)
>> +static void put_cpudouble(QEMUFile *f, void *pv, size_t size,
>> +                          VMStateField *field, QJSON *vmdesc)
>>  {
>>      CPU_DoubleU *v = pv;
>>      qemu_put_be32s(f, &v->l.upper);
>> @@ -824,14 +842,16 @@ const VMStateInfo vmstate_info_cpudouble = {
>>  
>>  /* uint8_t buffers */
>>  
>> -static int get_buffer(QEMUFile *f, void *pv, size_t size)
>> +static int get_buffer(QEMUFile *f, void *pv, size_t size,
>> +                      VMStateField *field)
>>  {
>>      uint8_t *v = pv;
>>      qemu_get_buffer(f, v, size);
>>      return 0;
>>  }
>>  
>> -static void put_buffer(QEMUFile *f, void *pv, size_t size)
>> +static void put_buffer(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                       QJSON *vmdesc)
>>  {
>>      uint8_t *v = pv;
>>      qemu_put_buffer(f, v, size);
>> @@ -846,7 +866,8 @@ const VMStateInfo vmstate_info_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)
>> +static int get_unused_buffer(QEMUFile *f, void *pv, size_t size,
>> +                             VMStateField *field)
>>  {
>>      uint8_t buf[1024];
>>      int block_len;
>> @@ -859,7 +880,8 @@ static int get_unused_buffer(QEMUFile *f, void *pv, 
>> size_t size)
>>     return 0;
>>  }
>>  
>> -static void put_unused_buffer(QEMUFile *f, void *pv, size_t size)
>> +static void put_unused_buffer(QEMUFile *f, void *pv, size_t size,
>> +                              VMStateField *field, QJSON *vmdesc)
>>  {
>>      static const uint8_t buf[1024];
>>      int block_len;
>> @@ -884,7 +906,7 @@ const VMStateInfo vmstate_info_unused_buffer = {
>>   */
>>  /* 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)
>> +static int get_bitmap(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field)
>>  {
>>      unsigned long *bmp = pv;
>>      int i, idx = 0;
>> @@ -898,7 +920,8 @@ static int get_bitmap(QEMUFile *f, void *pv, size_t size)
>>      return 0;
>>  }
>>  
>> -static void put_bitmap(QEMUFile *f, void *pv, size_t size)
>> +static void put_bitmap(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                QJSON *vmdesc)
>>  {
>>      unsigned long *bmp = pv;
>>      int i, idx = 0;
>> diff --git a/target-alpha/machine.c b/target-alpha/machine.c
>> index 710b783..48e3278 100644
>> --- a/target-alpha/machine.c
>> +++ b/target-alpha/machine.c
>> @@ -5,14 +5,15 @@
>>  #include "hw/boards.h"
>>  #include "migration/cpu.h"
>>  
>> -static int get_fpcr(QEMUFile *f, void *opaque, size_t size)
>> +static int get_fpcr(QEMUFile *f, void *opaque, size_t size, VMStateField 
>> *field)
>>  {
>>      CPUAlphaState *env = opaque;
>>      cpu_alpha_store_fpcr(env, qemu_get_be64(f));
>>      return 0;
>>  }
>>  
>> -static void put_fpcr(QEMUFile *f, void *opaque, size_t size)
>> +static void put_fpcr(QEMUFile *f, void *opaque, size_t size,
>> +                     VMStateField *field, QJSON *vmdesc)
>>  {
>>      CPUAlphaState *env = opaque;
>>      qemu_put_be64(f, cpu_alpha_load_fpcr(env));
>> diff --git a/target-arm/machine.c b/target-arm/machine.c
>> index 7a6ca31..41a0de9 100644
>> --- a/target-arm/machine.c
>> +++ b/target-arm/machine.c
>> @@ -17,7 +17,8 @@ static bool vfp_needed(void *opaque)
>>      return arm_feature(env, ARM_FEATURE_VFP);
>>  }
>>  
>> -static int get_fpscr(QEMUFile *f, void *opaque, size_t size)
>> +static int get_fpscr(QEMUFile *f, void *opaque, size_t size,
>> +                     VMStateField *field)
>>  {
>>      ARMCPU *cpu = opaque;
>>      CPUARMState *env = &cpu->env;
>> @@ -27,7 +28,8 @@ static int get_fpscr(QEMUFile *f, void *opaque, size_t 
>> size)
>>      return 0;
>>  }
>>  
>> -static void put_fpscr(QEMUFile *f, void *opaque, size_t size)
>> +static void put_fpscr(QEMUFile *f, void *opaque, size_t size,
>> +                      VMStateField *field, QJSON *vmdesc)
>>  {
>>      ARMCPU *cpu = opaque;
>>      CPUARMState *env = &cpu->env;
>> @@ -163,7 +165,8 @@ static const VMStateDescription vmstate_pmsav7 = {
>>      }
>>  };
>>  
>> -static int get_cpsr(QEMUFile *f, void *opaque, size_t size)
>> +static int get_cpsr(QEMUFile *f, void *opaque, size_t size,
>> +                    VMStateField *field)
>>  {
>>      ARMCPU *cpu = opaque;
>>      CPUARMState *env = &cpu->env;
>> @@ -180,7 +183,8 @@ static int get_cpsr(QEMUFile *f, void *opaque, size_t 
>> size)
>>      return 0;
>>  }
>>  
>> -static void put_cpsr(QEMUFile *f, void *opaque, size_t size)
>> +static void put_cpsr(QEMUFile *f, void *opaque, size_t size,
>> +                     VMStateField *field, QJSON *vmdesc)
>>  {
>>      ARMCPU *cpu = opaque;
>>      CPUARMState *env = &cpu->env;
>> diff --git a/target-i386/machine.c b/target-i386/machine.c
>> index 71c0e4d..1df19e2 100644
>> --- a/target-i386/machine.c
>> +++ b/target-i386/machine.c
>> @@ -139,7 +139,8 @@ static const VMStateDescription vmstate_mtrr_var = {
>>  #define VMSTATE_MTRR_VARS(_field, _state, _n, _v)                    \
>>      VMSTATE_STRUCT_ARRAY(_field, _state, _n, _v, vmstate_mtrr_var, MTRRVar)
>>  
>> -static void put_fpreg_error(QEMUFile *f, void *opaque, size_t size)
>> +static void put_fpreg_error(QEMUFile *f, void *opaque, size_t size,
>> +                            VMStateField *field, QJSON *vmdesc)
>>  {
>>      fprintf(stderr, "call put_fpreg() with invalid arguments\n");
>>      exit(0);
>> @@ -167,7 +168,8 @@ static void fp64_to_fp80(union x86_longdouble *p, 
>> uint64_t temp)
>>      p->exp = e;
>>  }
>>  
>> -static int get_fpreg(QEMUFile *f, void *opaque, size_t size)
>> +static int get_fpreg(QEMUFile *f, void *opaque, size_t size,
>> +                     VMStateField *field)
>>  {
>>      FPReg *fp_reg = opaque;
>>      uint64_t mant;
>> @@ -179,7 +181,8 @@ static int get_fpreg(QEMUFile *f, void *opaque, size_t 
>> size)
>>      return 0;
>>  }
>>  
>> -static void put_fpreg(QEMUFile *f, void *opaque, size_t size)
>> +static void put_fpreg(QEMUFile *f, void *opaque, size_t size,
>> +                      VMStateField *field, QJSON *vmdesc)
>>  {
>>      FPReg *fp_reg = opaque;
>>      uint64_t mant;
>> @@ -197,7 +200,8 @@ static const VMStateInfo vmstate_fpreg = {
>>      .put  = put_fpreg,
>>  };
>>  
>> -static int get_fpreg_1_mmx(QEMUFile *f, void *opaque, size_t size)
>> +static int get_fpreg_1_mmx(QEMUFile *f, void *opaque, size_t size,
>> +                           VMStateField *field)
>>  {
>>      union x86_longdouble *p = opaque;
>>      uint64_t mant;
>> @@ -214,7 +218,8 @@ static const VMStateInfo vmstate_fpreg_1_mmx = {
>>      .put  = put_fpreg_error,
>>  };
>>  
>> -static int get_fpreg_1_no_mmx(QEMUFile *f, void *opaque, size_t size)
>> +static int get_fpreg_1_no_mmx(QEMUFile *f, void *opaque, size_t size,
>> +                              VMStateField *field)
>>  {
>>      union x86_longdouble *p = opaque;
>>      uint64_t mant;
>> @@ -276,14 +281,16 @@ static bool less_than_7(void *opaque, int version_id)
>>      return version_id < 7;
>>  }
>>  
>> -static int get_uint64_as_uint32(QEMUFile *f, void *pv, size_t size)
>> +static int get_uint64_as_uint32(QEMUFile *f, void *pv, size_t size,
>> +                                VMStateField *field)
>>  {
>>      uint64_t *v = pv;
>>      *v = qemu_get_be32(f);
>>      return 0;
>>  }
>>  
>> -static void put_uint64_as_uint32(QEMUFile *f, void *pv, size_t size)
>> +static void put_uint64_as_uint32(QEMUFile *f, void *pv, size_t size,
>> +                                 VMStateField *field, QJSON *vmdesc)
>>  {
>>      uint64_t *v = pv;
>>      qemu_put_be32(f, *v);
>> diff --git a/target-mips/machine.c b/target-mips/machine.c
>> index a27f2f1..179084c 100644
>> --- a/target-mips/machine.c
>> +++ b/target-mips/machine.c
>> @@ -20,7 +20,7 @@ static int cpu_post_load(void *opaque, int version_id)
>>  
>>  /* FPU state */
>>  
>> -static int get_fpr(QEMUFile *f, void *pv, size_t size)
>> +static int get_fpr(QEMUFile *f, void *pv, size_t size, VMStateField *field)
>>  {
>>      int i;
>>      fpr_t *v = pv;
>> @@ -31,7 +31,8 @@ static int get_fpr(QEMUFile *f, void *pv, size_t size)
>>      return 0;
>>  }
>>  
>> -static void put_fpr(QEMUFile *f, void *pv, size_t size)
>> +static void put_fpr(QEMUFile *f, void *pv, size_t size, VMStateField *field,
>> +                    QJSON *vmdesc)
>>  {
>>      int i;
>>      fpr_t *v = pv;
>> @@ -125,7 +126,7 @@ const VMStateDescription vmstate_mvp = {
>>  
>>  /* TLB state */
>>  
>> -static int get_tlb(QEMUFile *f, void *pv, size_t size)
>> +static int get_tlb(QEMUFile *f, void *pv, size_t size, VMStateField *field)
>>  {
>>      r4k_tlb_t *v = pv;
>>      uint16_t flags;
>> @@ -152,7 +153,8 @@ static int get_tlb(QEMUFile *f, void *pv, size_t size)
>>      return 0;
>>  }
>>  
>> -static void put_tlb(QEMUFile *f, void *pv, size_t size)
>> +static void put_tlb(QEMUFile *f, void *pv, size_t size, VMStateField *field,
>> +                    QJSON *vmdesc)
>>  {
>>      r4k_tlb_t *v = pv;
>>  
>> diff --git a/target-ppc/machine.c b/target-ppc/machine.c
>> index 4820f22..0e1822c 100644
>> --- a/target-ppc/machine.c
>> +++ b/target-ppc/machine.c
>> @@ -106,7 +106,7 @@ static int cpu_load_old(QEMUFile *f, void *opaque, int 
>> version_id)
>>      return 0;
>>  }
>>  
>> -static int get_avr(QEMUFile *f, void *pv, size_t size)
>> +static int get_avr(QEMUFile *f, void *pv, size_t size, VMStateField *field)
>>  {
>>      ppc_avr_t *v = pv;
>>  
>> @@ -116,7 +116,8 @@ static int get_avr(QEMUFile *f, void *pv, size_t size)
>>      return 0;
>>  }
>>  
>> -static void put_avr(QEMUFile *f, void *pv, size_t size)
>> +static void put_avr(QEMUFile *f, void *pv, size_t size, VMStateField *field,
>> +                    QJSON *vmdesc)
>>  {
>>      ppc_avr_t *v = pv;
>>  
>> @@ -324,7 +325,7 @@ static const VMStateDescription vmstate_sr = {
>>  };
>>  
>>  #ifdef TARGET_PPC64
>> -static int get_slbe(QEMUFile *f, void *pv, size_t size)
>> +static int get_slbe(QEMUFile *f, void *pv, size_t size, VMStateField *field)
>>  {
>>      ppc_slb_t *v = pv;
>>  
>> @@ -334,7 +335,8 @@ static int get_slbe(QEMUFile *f, void *pv, size_t size)
>>      return 0;
>>  }
>>  
>> -static void put_slbe(QEMUFile *f, void *pv, size_t size)
>> +static void put_slbe(QEMUFile *f, void *pv, size_t size, VMStateField 
>> *field,
>> +                     QJSON *vmdesc)
>>  {
>>      ppc_slb_t *v = pv;
>>  
>> diff --git a/target-sparc/machine.c b/target-sparc/machine.c
>> index 59c92f7..3194e03 100644
>> --- a/target-sparc/machine.c
>> +++ b/target-sparc/machine.c
>> @@ -59,7 +59,7 @@ static const VMStateDescription vmstate_tlb_entry = {
>>  };
>>  #endif
>>  
>> -static int get_psr(QEMUFile *f, void *opaque, size_t size)
>> +static int get_psr(QEMUFile *f, void *opaque, size_t size, VMStateField 
>> *field)
>>  {
>>      SPARCCPU *cpu = opaque;
>>      CPUSPARCState *env = &cpu->env;
>> @@ -72,7 +72,8 @@ static int get_psr(QEMUFile *f, void *opaque, size_t size)
>>      return 0;
>>  }
>>  
>> -static void put_psr(QEMUFile *f, void *opaque, size_t size)
>> +static void put_psr(QEMUFile *f, void *opaque, size_t size, VMStateField 
>> *field,
>> +                QJSON *vmdesc)
>>  {
>>      SPARCCPU *cpu = opaque;
>>      CPUSPARCState *env = &cpu->env;
>> -- 
>> 1.9.1
>>
>>
> --
> Dr. David Alan Gilbert / address@hidden / Manchester, UK
> 




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