提交 18e673b8 编写于 作者: P Pavel Hrdina 提交者: Paolo Bonzini

scsi-disk: scsi-block device for scsi pass-through should not be removable

This patch adds a new SCSI_DISK_F_NO_REMOVABLE_DEVOPS feature. By this
feature we can set that the scsi-block (scsi pass-through) device will still
be removable from the guest side, but from monitor it cannot be removed.

Cc: qemu-stable@nongnu.org
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
上级 d836f8d3
......@@ -63,6 +63,7 @@ typedef struct SCSIDiskReq {
#define SCSI_DISK_F_REMOVABLE 0
#define SCSI_DISK_F_DPOFUA 1
#define SCSI_DISK_F_NO_REMOVABLE_DEVOPS 2
struct SCSIDiskState
{
......@@ -2110,7 +2111,8 @@ static int scsi_initfn(SCSIDevice *dev)
return -1;
}
if (s->features & (1 << SCSI_DISK_F_REMOVABLE)) {
if ((s->features & (1 << SCSI_DISK_F_REMOVABLE)) &&
!(s->features & (1 << SCSI_DISK_F_NO_REMOVABLE_DEVOPS))) {
bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_removable_block_ops, s);
} else {
bdrv_set_dev_ops(s->qdev.conf.bs, &scsi_disk_block_ops, s);
......@@ -2322,6 +2324,12 @@ static int scsi_block_initfn(SCSIDevice *dev)
} else {
s->qdev.blocksize = 512;
}
/* Makes the scsi-block device not removable by using HMP and QMP eject
* command.
*/
s->features |= (1 << SCSI_DISK_F_NO_REMOVABLE_DEVOPS);
return scsi_initfn(&s->qdev);
}
......
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