ide: fix migration in the middle of a bmdma transfer
It reintroduces Revert "ide save/restore pio/atapi cmd transfer fields and io buffer" but using subsections. Added bonus is the addition of ide_dummy_transfer_stop to transfer_end_table, that was missing. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
parent
50641c5ce2
commit
5ee84c3375
30
hw/ide/pci.c
30
hw/ide/pci.c
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@ -121,6 +121,28 @@ void bmdma_addr_writel(void *opaque, uint32_t addr, uint32_t val)
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bm->cur_addr = bm->addr;
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bm->cur_addr = bm->addr;
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}
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}
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static bool ide_bmdma_current_needed(void *opaque)
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{
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BMDMAState *bm = opaque;
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return (bm->cur_prd_len != 0);
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}
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static const VMStateDescription vmstate_bmdma_current = {
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.name = "ide bmdma_current",
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.version_id = 1,
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.minimum_version_id = 1,
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.minimum_version_id_old = 1,
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.fields = (VMStateField []) {
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VMSTATE_UINT32(cur_addr, BMDMAState),
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VMSTATE_UINT32(cur_prd_last, BMDMAState),
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VMSTATE_UINT32(cur_prd_addr, BMDMAState),
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VMSTATE_UINT32(cur_prd_len, BMDMAState),
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VMSTATE_END_OF_LIST()
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}
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};
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static const VMStateDescription vmstate_bmdma = {
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static const VMStateDescription vmstate_bmdma = {
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.name = "ide bmdma",
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.name = "ide bmdma",
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.version_id = 3,
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.version_id = 3,
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@ -134,6 +156,14 @@ static const VMStateDescription vmstate_bmdma = {
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VMSTATE_UINT32(nsector, BMDMAState),
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VMSTATE_UINT32(nsector, BMDMAState),
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VMSTATE_UINT8(unit, BMDMAState),
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VMSTATE_UINT8(unit, BMDMAState),
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VMSTATE_END_OF_LIST()
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VMSTATE_END_OF_LIST()
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},
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.subsections = (VMStateSubsection []) {
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{
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.vmsd = &vmstate_bmdma_current,
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.needed = ide_bmdma_current_needed,
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}, {
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/* empty */
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}
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}
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}
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};
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};
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