diff options
| author | Alexander Bulekov <alxndr@bu.edu> | 2023-04-27 17:10:09 -0400 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2023-09-11 10:53:50 +0300 |
| commit | ae96dce3b79861f62a0d2068d2cd0511740a1a6d (patch) | |
| tree | 3b259cdbaa6584aab9b640b4518343364e65d2f5 /hw/scsi | |
| parent | bb3522b4f88d7a1c11f4dfcab53dd6d3b78d7771 (diff) | |
hw: replace most qemu_bh_new calls with qemu_bh_new_guarded
This protects devices from bh->mmio reentrancy issues.
Thanks: Thomas Huth <thuth@redhat.com> for diagnosing OS X test failure.
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paul Durrant <paul@xen.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20230427211013.2994127-5-alxndr@bu.edu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit f63192b0544af5d3e4d5edfd85ab520fcf671377)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'hw/scsi')
| -rw-r--r-- | hw/scsi/mptsas.c | 3 | ||||
| -rw-r--r-- | hw/scsi/scsi-bus.c | 3 | ||||
| -rw-r--r-- | hw/scsi/vmw_pvscsi.c | 3 |
3 files changed, 6 insertions, 3 deletions
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 ceceafb2cd..e5c9f7a53d 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/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 */ |