Eric Auger f9815b303e vhost/net: Clear the pending messages when the backend is removed ...

[ Upstream commit 9526f9a2b762af16be94a72aca5d65c677d28f50 ]

When the vhost iotlb is used along with a guest virtual iommu
and the guest gets rebooted, some MISS messages may have been
recorded just before the reboot and spuriously executed by
the virtual iommu after the reboot.

As vhost does not have any explicit reset user API,
VHOST_NET_SET_BACKEND looks a reasonable point where to clear
the pending messages, in case the backend is removed.

Export vhost_clear_msg() and call it in vhost_net_set_backend()
when fd == -1.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Suggested-by: Jason Wang <jasowang@redhat.com>
Fixes: 6b1e6cc7855b0 ("vhost: new device IOTLB API")
Message-Id: <20230117151518.44725-3-eric.auger@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2023-02-15 17:22:11 +01:00

..

iotlb.c

vhost: Fix documentation

2020-09-24 05:54:36 -04:00

Kconfig

vhost_vdpa: implement IRQ offloading in vhost_vdpa

2020-08-05 11:08:42 -04:00

Makefile

vhost: introduce vDPA-based backend

2020-04-02 10:41:40 -04:00

net.c

vhost/net: Clear the pending messages when the backend is removed

2023-02-15 17:22:11 +01:00

scsi.c

vhost scsi: fix error return code in vhost_scsi_set_endpoint()

2020-12-30 11:54:00 +01:00

test.c

tools/virtio: Add --reset

2020-06-22 12:34:21 -04:00

test.h

tools/virtio: Add --reset

2020-06-22 12:34:21 -04:00

vdpa.c

vhost_vdpa: don't setup irq offloading when irq_num < 0

2022-05-25 09:17:53 +02:00

vhost.c

vhost/net: Clear the pending messages when the backend is removed

2023-02-15 17:22:11 +01:00

vhost.h

vhost/net: Clear the pending messages when the backend is removed

2023-02-15 17:22:11 +01:00

vringh.c

vringh: fix range used in iotlb_translate()

2023-01-14 10:16:46 +01:00

vsock.c

vhost/vsock: Fix error handling in vhost_vsock_init()

2023-01-14 10:16:46 +01:00