Merge remote-tracking branch 'remotes/armbru/tags/pull-block-2017-02-21' into staging

Changes to -drive without if= and with if=scsi

# gpg: Signature made Tue 21 Feb 2017 12:22:35 GMT
# gpg:                using RSA key 0x3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-block-2017-02-21:
  hw/i386: Deprecate -drive if=scsi with PC machine types
  hw: Deprecate -drive if=scsi with non-onboard HBAs
  hw/scsi: Concentrate -drive if=scsi auto-create in one place
  hw: Drop superfluous special checks for orphaned -drive
  blockdev: Make orphaned -drive fatal
  blockdev: Improve message for orphaned -drive
  hw/arm/highbank: Default -drive to if=ide instead of if=scsi
  hw: Default -drive to if=none instead of scsi when scsi cannot work
  hw: Default -drive to if=none instead of ide when ide cannot work
  hw/arm/cubieboard hw/arm/xlnx-ep108: Fix units_per_default_bus
  hw: Default -drive to if=ide explicitly where it works

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 49 insertions, 7 deletions

diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
index c9f0ac0..f557446 100644
--- a/hw/scsi/scsi-bus.c
+++ b/hw/scsi/scsi-bus.c
@@ -263,12 +263,11 @@ SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
     return SCSI_DEVICE(dev);
 }
 
-void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, Error **errp)
+void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, bool deprecated)
 {
     Location loc;
     DriveInfo *dinfo;
     int unit;
-    Error *err = NULL;
 
     loc_push_none(&loc);
     for (unit = 0; unit <= bus->info->max_target; unit++) {
@@ -277,16 +276,59 @@ void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, Error **errp)
             continue;
         }
         qemu_opts_loc_restore(dinfo->opts);
-        scsi_bus_legacy_add_drive(bus, blk_by_legacy_dinfo(dinfo),
-                                  unit, false, -1, NULL, &err);
-        if (err != NULL) {
-            error_propagate(errp, err);
-            break;
+        if (deprecated) {
+            /* Handling -drive not claimed by machine initialization */
+            if (blk_get_attached_dev(blk_by_legacy_dinfo(dinfo))) {
+                continue;       /* claimed */
+            }
+            if (!dinfo->is_default) {
+                error_report("warning: bus=%d,unit=%d is deprecated with this"
+                             " machine type",
+                             bus->busnr, unit);
+            }
         }
+        scsi_bus_legacy_add_drive(bus, blk_by_legacy_dinfo(dinfo),
+                                  unit, false, -1, NULL, &error_fatal);
     }
     loc_pop(&loc);
 }
 
+static bool is_scsi_hba_with_legacy_magic(Object *obj)
+{
+    static const char *magic[] = {
+        "am53c974", "dc390", "esp", "lsi53c810", "lsi53c895a",
+        "megasas", "megasas-gen2", "mptsas1068", "spapr-vscsi",
+        "virtio-scsi-device",
+        NULL
+    };
+    const char *typename = object_get_typename(obj);
+    int i;
+
+    for (i = 0; magic[i]; i++)
+        if (!strcmp(typename, magic[i])) {
+            return true;
+    }
+
+    return false;
+}
+
+static int scsi_legacy_handle_cmdline_cb(Object *obj, void *opaque)
+{
+    SCSIBus *bus = (SCSIBus *)object_dynamic_cast(obj, TYPE_SCSI_BUS);
+
+    if (bus && is_scsi_hba_with_legacy_magic(OBJECT(bus->qbus.parent))) {
+        scsi_bus_legacy_handle_cmdline(bus, true);
+    }
+
+    return 0;
+}
+
+void scsi_legacy_handle_cmdline(void)
+{
+    object_child_foreach_recursive(object_get_root(),
+                                   scsi_legacy_handle_cmdline_cb, NULL);
+}
+
 static int32_t scsi_invalid_field(SCSIRequest *req, uint8_t *buf)
 {
     scsi_req_build_sense(req, SENSE_CODE(INVALID_FIELD));