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fdc: adding vmstate for save/restore 

VMState added by this patch preserves correct
loading of the FDC device state.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Acked-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Pavel Dovgalyuk 2014-08-28 15:18:41 +04:00 committed by Paolo Bonzini
parent 4603ea0105
commit c0b92f3037
1 changed files with 74 additions and 0 deletions
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74
hw/block/fdc.c
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@ -695,10 +695,34 @@ static const VMStateDescription vmstate_fdrive_media_rate = {
}
};
static bool fdrive_perpendicular_needed(void *opaque)
{
FDrive *drive = opaque;
return drive->perpendicular != 0;
}
static const VMStateDescription vmstate_fdrive_perpendicular = {
.name = "fdrive/perpendicular",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_UINT8(perpendicular, FDrive),
VMSTATE_END_OF_LIST()
}
};
static int fdrive_post_load(void *opaque, int version_id)
{
fd_revalidate(opaque);
return 0;
}
static const VMStateDescription vmstate_fdrive = {
.name = "fdrive",
.version_id = 1,
.minimum_version_id = 1,
.post_load = fdrive_post_load,
.fields = (VMStateField[]) {
VMSTATE_UINT8(head, FDrive),
VMSTATE_UINT8(track, FDrive),
@ -712,6 +736,9 @@ static const VMStateDescription vmstate_fdrive = {
} , {
.vmsd = &vmstate_fdrive_media_rate,
.needed = &fdrive_media_rate_needed,
} , {
.vmsd = &vmstate_fdrive_perpendicular,
.needed = &fdrive_perpendicular_needed,
} , {
/* empty */
}
@ -734,6 +761,40 @@ static int fdc_post_load(void *opaque, int version_id)
return 0;
}
static bool fdc_reset_sensei_needed(void *opaque)
{
FDCtrl *s = opaque;
return s->reset_sensei != 0;
}
static const VMStateDescription vmstate_fdc_reset_sensei = {
.name = "fdc/reset_sensei",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_INT32(reset_sensei, FDCtrl),
VMSTATE_END_OF_LIST()
}
};
static bool fdc_result_timer_needed(void *opaque)
{
FDCtrl *s = opaque;
return timer_pending(s->result_timer);
}
static const VMStateDescription vmstate_fdc_result_timer = {
.name = "fdc/result_timer",
.version_id = 1,
.minimum_version_id = 1,
.fields = (VMStateField[]) {
VMSTATE_TIMER(result_timer, FDCtrl),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_fdc = {
.name = "fdc",
.version_id = 2,
@ -770,6 +831,17 @@ static const VMStateDescription vmstate_fdc = {
VMSTATE_STRUCT_ARRAY(drives, FDCtrl, MAX_FD, 1,
vmstate_fdrive, FDrive),
VMSTATE_END_OF_LIST()
},
.subsections = (VMStateSubsection[]) {
{
.vmsd = &vmstate_fdc_reset_sensei,
.needed = fdc_reset_sensei_needed,
} , {
.vmsd = &vmstate_fdc_result_timer,
.needed = fdc_result_timer_needed,
} , {
/* empty */
}
}
};
@ -844,6 +916,8 @@ static void fdctrl_reset(FDCtrl *fdctrl, int do_irq)
fdctrl->dor = FD_DOR_nRESET;
fdctrl->dor |= (fdctrl->dma_chann != -1) ? FD_DOR_DMAEN : 0;
fdctrl->msr = FD_MSR_RQM;
fdctrl->reset_sensei = 0;
timer_del(fdctrl->result_timer);
/* FIFO state */
fdctrl->data_pos = 0;
fdctrl->data_len = 0;