On 10/16/19 6:41 PM, Sam Eiderman wrote:
From: Sam Eiderman <shmuel.eider...@oracle.com>

Relevant devices are:
     * ide-hd (and ide-cd, ide-drive)
     * scsi-hd (and scsi-cd, scsi-disk, scsi-block)
     * virtio-blk-pci

We do not call del_boot_device_lchs() for ide-* since we don't need to -
IDE block devices do not support unplugging.

Reviewed-by: Karl Heubaum <karl.heub...@oracle.com>
Reviewed-by: Arbel Moshe <arbel.mo...@oracle.com>
Signed-off-by: Sam Eiderman <shmuel.eider...@oracle.com>
Signed-off-by: Sam Eiderman <sam...@google.com>
---
  hw/block/virtio-blk.c |  6 ++++++
  hw/ide/qdev.c         |  5 +++++
  hw/scsi/scsi-disk.c   | 12 ++++++++++++
  3 files changed, 23 insertions(+)

diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index ed2ddebd2b..c56e905f80 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -1200,6 +1200,11 @@ static void virtio_blk_device_realize(DeviceState *dev, 
Error **errp)
      blk_set_guest_block_size(s->blk, s->conf.conf.logical_block_size);
blk_iostatus_enable(s->blk);
+
+    add_boot_device_lchs(dev, "/disk@0,0",
+                         conf->conf.lcyls,
+                         conf->conf.lheads,
+                         conf->conf.lsecs);
  }
static void virtio_blk_device_unrealize(DeviceState *dev, Error **errp)
@@ -1207,6 +1212,7 @@ static void virtio_blk_device_unrealize(DeviceState *dev, 
Error **errp)
      VirtIODevice *vdev = VIRTIO_DEVICE(dev);
      VirtIOBlock *s = VIRTIO_BLK(dev);
+ del_boot_device_lchs(dev, "/disk@0,0");
      virtio_blk_data_plane_destroy(s->dataplane);
      s->dataplane = NULL;
      qemu_del_vm_change_state_handler(s->change);
diff --git a/hw/ide/qdev.c b/hw/ide/qdev.c
index 6dd219944f..2ffd387a73 100644
--- a/hw/ide/qdev.c
+++ b/hw/ide/qdev.c
@@ -220,6 +220,11 @@ static void ide_dev_initfn(IDEDevice *dev, IDEDriveKind 
kind, Error **errp)
add_boot_device_path(dev->conf.bootindex, &dev->qdev,
                           dev->unit ? "/disk@1" : "/disk@0");
+
+    add_boot_device_lchs(&dev->qdev, dev->unit ? "/disk@1" : "/disk@0",
+                         dev->conf.lcyls,
+                         dev->conf.lheads,
+                         dev->conf.lsecs);
  }
static void ide_dev_get_bootindex(Object *obj, Visitor *v, const char *name,
diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c
index 68b1675fd9..07fb5ebdf1 100644
--- a/hw/scsi/scsi-disk.c
+++ b/hw/scsi/scsi-disk.c
@@ -35,6 +35,7 @@
  #include "hw/block/block.h"
  #include "hw/qdev-properties.h"
  #include "sysemu/dma.h"
+#include "sysemu/sysemu.h"
  #include "qemu/cutils.h"
  #include "trace.h"
@@ -2414,6 +2415,16 @@ static void scsi_realize(SCSIDevice *dev, Error **errp)
      blk_set_guest_block_size(s->qdev.conf.blk, s->qdev.blocksize);
blk_iostatus_enable(s->qdev.conf.blk);
+
+    add_boot_device_lchs(&dev->qdev, NULL,
+                         dev->conf.lcyls,
+                         dev->conf.lheads,
+                         dev->conf.lsecs);
+}
+
+static void scsi_unrealize(SCSIDevice *dev, Error **errp)
+{
+    del_boot_device_lchs(&dev->qdev, NULL);
  }
static void scsi_hd_realize(SCSIDevice *dev, Error **errp)
@@ -3018,6 +3029,7 @@ static void scsi_hd_class_initfn(ObjectClass *klass, void 
*data)
      SCSIDeviceClass *sc = SCSI_DEVICE_CLASS(klass);
sc->realize = scsi_hd_realize;
+    sc->unrealize    = scsi_unrealize;
      sc->alloc_req    = scsi_new_request;
      sc->unit_attention_reported = scsi_disk_unit_attention_reported;
      dc->desc = "virtual SCSI disk";


Reviewed-by: Philippe Mathieu-Daudé <phi...@redhat.com>
Tested-by: Philippe Mathieu-Daudé <phi...@redhat.com>
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