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authorJuan Quintela <quintela@redhat.com>2010-07-26 21:38:45 +0200
committerAnthony Liguori <aliguori@us.ibm.com>2010-07-26 16:19:51 -0500
commit5ee84c3375f9dff8fdee7209195c8c5327a92551 (patch)
tree527700d14b32c870e178ae5bca788adad1837f4b /hw
parent50641c5ce258220fc63ba5be1afd1a37f023aba9 (diff)
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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>
Diffstat (limited to 'hw')
-rw-r--r--hw/ide/pci.c30
1 files changed, 30 insertions, 0 deletions
diff --git a/hw/ide/pci.c b/hw/ide/pci.c
index 780fc5f..4331d77 100644
--- a/hw/ide/pci.c
+++ b/hw/ide/pci.c
@@ -121,6 +121,28 @@ void bmdma_addr_writel(void *opaque, uint32_t addr, uint32_t val)
bm->cur_addr = bm->addr;
}
+static bool ide_bmdma_current_needed(void *opaque)
+{
+ BMDMAState *bm = opaque;
+
+ return (bm->cur_prd_len != 0);
+}
+
+static const VMStateDescription vmstate_bmdma_current = {
+ .name = "ide bmdma_current",
+ .version_id = 1,
+ .minimum_version_id = 1,
+ .minimum_version_id_old = 1,
+ .fields = (VMStateField []) {
+ VMSTATE_UINT32(cur_addr, BMDMAState),
+ VMSTATE_UINT32(cur_prd_last, BMDMAState),
+ VMSTATE_UINT32(cur_prd_addr, BMDMAState),
+ VMSTATE_UINT32(cur_prd_len, BMDMAState),
+ VMSTATE_END_OF_LIST()
+ }
+};
+
+
static const VMStateDescription vmstate_bmdma = {
.name = "ide bmdma",
.version_id = 3,
@@ -134,6 +156,14 @@ static const VMStateDescription vmstate_bmdma = {
VMSTATE_UINT32(nsector, BMDMAState),
VMSTATE_UINT8(unit, BMDMAState),
VMSTATE_END_OF_LIST()
+ },
+ .subsections = (VMStateSubsection []) {
+ {
+ .vmsd = &vmstate_bmdma_current,
+ .needed = ide_bmdma_current_needed,
+ }, {
+ /* empty */
+ }
}
};