ide: place initial state of the current request to IDEBus

This moves more common restarting logic to the core IDE code.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-id: 1424708286-16483-10-git-send-email-jsnow@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/hw/ide/core.c b/hw/ide/core.c
index 7607d03..71ec1e7 100644
--- a/hw/ide/core.c
+++ b/hw/ide/core.c
@@ -647,6 +647,8 @@ void ide_set_inactive(IDEState *s, bool more)
 {
     s->bus->dma->aiocb = NULL;
     s->bus->retry_unit = -1;
+    s->bus->retry_sector_num = 0;
+    s->bus->retry_nsector = 0;
     if (s->bus->dma->ops->set_inactive) {
         s->bus->dma->ops->set_inactive(s->bus->dma, more);
     }
@@ -801,6 +803,8 @@ static void ide_sector_start_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
 void ide_start_dma(IDEState *s, BlockCompletionFunc *cb)
 {
     s->bus->retry_unit = s->unit;
+    s->bus->retry_sector_num = ide_get_sector(s);
+    s->bus->retry_nsector = s->nsector;
     if (s->bus->dma->ops->start_dma) {
         s->bus->dma->ops->start_dma(s->bus->dma, s, cb);
     }
@@ -2334,6 +2338,8 @@ static const IDEDMAOps ide_dma_nop_ops = {
 static void ide_restart_dma(IDEState *s, enum ide_dma_cmd dma_cmd)
 {
     s->unit = s->bus->retry_unit;
+    ide_set_sector(s, s->bus->retry_sector_num);
+    s->nsector = s->bus->retry_nsector;
     s->bus->dma->ops->restart_dma(s->bus->dma);
     s->io_buffer_index = 0;
     s->io_buffer_size = 0;