Revert "floppy: save and restore DIR register"

This reverts commit 7d905f716bea633f2836e1d661387983aacdc6d6.

The use of subsections by this commit are broken because of a fundamental
limitations of subsections in the current protocol.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

diff --git a/hw/fdc.c b/hw/fdc.c
index edf0360d1bca32d9e66c636fe6acbbc1f537db6e..9fdbc750b501e1bf0ed407df1ab9b1b486c10969 100644 (file)
--- a/hw/fdc.c
+++ b/hw/fdc.c
@@ -36,7 +36,6 @@
 #include "qdev-addr.h"
 #include "blockdev.h"
 #include "sysemu.h"
-#include "block_int.h"
 
 /********************************************************/
 /* debug Floppy devices */
@@ -83,7 +82,6 @@ typedef struct FDrive {
     uint8_t max_track;        /* Nb of tracks           */
     uint16_t bps;             /* Bytes per sector       */
     uint8_t ro;               /* Is read-only           */
-    uint8_t media_changed;    /* Is media changed       */
 } FDrive;
 
 static void fd_init(FDrive *drv)
@@ -535,63 +533,16 @@ static CPUWriteMemoryFunc * const fdctrl_mem_write_strict[3] = {
     NULL,
 };
 
-static void fdrive_media_changed_pre_save(void *opaque)
-{
-    FDrive *drive = opaque;
-
-    drive->media_changed = drive->bs->media_changed;
-}
-
-static int fdrive_media_changed_post_load(void *opaque, int version_id)
-{
-    FDrive *drive = opaque;
-
-    if (drive->bs != NULL) {
-        drive->bs->media_changed = drive->media_changed;
-    }
-
-    /* User ejected the floppy when drive->bs == NULL */
-    return 0;
-}
-
-static bool fdrive_media_changed_needed(void *opaque)
-{
-    FDrive *drive = opaque;
-
-    return (drive->bs != NULL && drive->bs->media_changed != 1);
-}
-
-static const VMStateDescription vmstate_fdrive_media_changed = {
-    .name = "fdrive/media_changed",
-    .version_id = 1,
-    .minimum_version_id = 1,
-    .minimum_version_id_old = 1,
-    .pre_save = fdrive_media_changed_pre_save,
-    .post_load = fdrive_media_changed_post_load,
-    .fields      = (VMStateField[]) {
-        VMSTATE_UINT8(media_changed, FDrive),
-        VMSTATE_END_OF_LIST()
-    }
-};
-
 static const VMStateDescription vmstate_fdrive = {
     .name = "fdrive",
     .version_id = 1,
     .minimum_version_id = 1,
     .minimum_version_id_old = 1,
-    .fields      = (VMStateField[]) {
+    .fields      = (VMStateField []) {
         VMSTATE_UINT8(head, FDrive),
         VMSTATE_UINT8(track, FDrive),
         VMSTATE_UINT8(sect, FDrive),
         VMSTATE_END_OF_LIST()
-    },
-    .subsections = (VMStateSubsection[]) {
-        {
-            .vmsd = &vmstate_fdrive_media_changed,
-            .needed = &fdrive_media_changed_needed,
-        } , {
-            /* empty */
-        }
     }
 };