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-rw-r--r--hw/scsi/lsi53c895a.c6
-rw-r--r--hw/scsi/mptsas.c3
-rw-r--r--hw/scsi/scsi-bus.c3
-rw-r--r--hw/scsi/virtio-scsi-dataplane.c2
-rw-r--r--hw/scsi/vmw_pvscsi.c3
5 files changed, 12 insertions, 5 deletions
diff --git a/hw/scsi/lsi53c895a.c b/hw/scsi/lsi53c895a.c
index af93557a9a..db27872963 100644
--- a/hw/scsi/lsi53c895a.c
+++ b/hw/scsi/lsi53c895a.c
@@ -2302,6 +2302,12 @@ static void lsi_scsi_realize(PCIDevice *dev, Error **errp)
     memory_region_init_io(&s->io_io, OBJECT(s), &lsi_io_ops, s,
                           "lsi-io", 256);
 
+    /*
+     * Since we use the address-space API to interact with ram_io, disable the
+     * re-entrancy guard.
+     */
+    s->ram_io.disable_reentrancy_guard = true;
+
     address_space_init(&s->pci_io_as, pci_address_space_io(dev), "lsi-pci-io");
     qdev_init_gpio_out(d, &s->ext_irq, 1);
 
diff --git a/hw/scsi/mptsas.c b/hw/scsi/mptsas.c
index c485da792c..3de288b454 100644
--- a/hw/scsi/mptsas.c
+++ b/hw/scsi/mptsas.c
@@ -1322,7 +1322,8 @@ static void mptsas_scsi_realize(PCIDevice *dev, Error **errp)
     }
     s->max_devices = MPTSAS_NUM_PORTS;
 
-    s->request_bh = qemu_bh_new(mptsas_fetch_requests, s);
+    s->request_bh = qemu_bh_new_guarded(mptsas_fetch_requests, s,
+                                        &DEVICE(dev)->mem_reentrancy_guard);
 
     scsi_bus_init(&s->bus, sizeof(s->bus), &dev->qdev, &mptsas_scsi_info);
 }
diff --git a/hw/scsi/scsi-bus.c b/hw/scsi/scsi-bus.c
index c97176110c..3c20b47ad0 100644
--- a/hw/scsi/scsi-bus.c
+++ b/hw/scsi/scsi-bus.c
@@ -193,7 +193,8 @@ static void scsi_dma_restart_cb(void *opaque, bool running, RunState state)
         AioContext *ctx = blk_get_aio_context(s->conf.blk);
         /* The reference is dropped in scsi_dma_restart_bh.*/
         object_ref(OBJECT(s));
-        s->bh = aio_bh_new(ctx, scsi_dma_restart_bh, s);
+        s->bh = aio_bh_new_guarded(ctx, scsi_dma_restart_bh, s,
+                                   &DEVICE(s)->mem_reentrancy_guard);
         qemu_bh_schedule(s->bh);
     }
 }
diff --git a/hw/scsi/virtio-scsi-dataplane.c b/hw/scsi/virtio-scsi-dataplane.c
index 20bb91766e..f3214e1c57 100644
--- a/hw/scsi/virtio-scsi-dataplane.c
+++ b/hw/scsi/virtio-scsi-dataplane.c
@@ -197,9 +197,7 @@ void virtio_scsi_dataplane_stop(VirtIODevice *vdev)
     }
     s->dataplane_stopping = true;
 
-    aio_context_acquire(s->ctx);
     aio_wait_bh_oneshot(s->ctx, virtio_scsi_dataplane_stop_bh, s);
-    aio_context_release(s->ctx);
 
     blk_drain_all(); /* ensure there are no in-flight requests */
 
diff --git a/hw/scsi/vmw_pvscsi.c b/hw/scsi/vmw_pvscsi.c
index fa76696855..4de34536e9 100644
--- a/hw/scsi/vmw_pvscsi.c
+++ b/hw/scsi/vmw_pvscsi.c
@@ -1184,7 +1184,8 @@ pvscsi_realizefn(PCIDevice *pci_dev, Error **errp)
         pcie_endpoint_cap_init(pci_dev, PVSCSI_EXP_EP_OFFSET);
     }
 
-    s->completion_worker = qemu_bh_new(pvscsi_process_completion_queue, s);
+    s->completion_worker = qemu_bh_new_guarded(pvscsi_process_completion_queue, s,
+                                               &DEVICE(pci_dev)->mem_reentrancy_guard);
 
     scsi_bus_init(&s->bus, sizeof(s->bus), DEVICE(pci_dev), &pvscsi_scsi_info);
     /* override default SCSI bus hotplug-handler, with pvscsi's one */