CA-380580: cross-pool migration: no CPU checks for halted VMs

CPU checks are needed only for running VMs that are being migrated, to
check for compatibility with the remote-host's CPUs.

Signed-off-by: Rob Hoes <[email protected]>

Author: robhoes

ocaml/xapi/xapi_vm_migrate.ml

@@ -1182,6 +1182,7 @@ let migrate_send' ~__context ~vm ~dest ~live:_ ~vdi_map ~vif_map ~vgpu_map
      We look at the VDIs of the VM, the VDIs of all of the snapshots, and any
      suspend-image VDIs. *)
   let vm_uuid = Db.VM.get_uuid ~__context ~self:vm in
+  let power_state = Db.VM.get_power_state ~__context ~self:vm in
   let vbds = Db.VM.get_VBDs ~__context ~self:vm in
   let vifs = Db.VM.get_VIFs ~__context ~self:vm in
   let snapshots = Db.VM.get_snapshots ~__context ~self:vm in
@@ -1240,7 +1241,7 @@ let migrate_send' ~__context ~vm ~dest ~live:_ ~vdi_map ~vif_map ~vgpu_map
   let suspends_vdis =
     List.fold_left
       (fun acc vm ->
-        if Db.VM.get_power_state ~__context ~self:vm = `Suspended then
+        if power_state = `Suspended then
           let vdi = Db.VM.get_suspend_VDI ~__context ~self:vm in
           let sr = Db.VDI.get_SR ~__context ~self:vdi in
           if
@@ -1456,7 +1457,7 @@ let migrate_send' ~__context ~vm ~dest ~live:_ ~vdi_map ~vif_map ~vgpu_map
             in
             inter_pool_metadata_transfer ~__context ~remote ~vm ~vdi_map
               ~vif_map ~vgpu_map ~dry_run:false ~live:true ~copy
-              ~check_cpu:(not force)
+              ~check_cpu:((not force) && power_state <> `Halted)
           in
           let vm = List.hd vms in
           let () =
@@ -1833,7 +1834,7 @@ let assert_can_migrate ~__context ~vm ~dest ~live:_ ~vdi_map ~vif_map ~options
           not
             (inter_pool_metadata_transfer ~__context ~remote ~vm ~vdi_map
                ~vif_map ~vgpu_map ~dry_run:true ~live:true ~copy
-               ~check_cpu:(not force)
+               ~check_cpu:((not force) && power_state <> `Halted)
             = []
             )
         then