qemu-kvm/kvm-virtio-net-delete-also-control-queue-when-TX-RX-dele.patch
Danilo C. L. de Paula 77ffa9e8e9 * Sun Feb 23 2020 Danilo Cesar Lemes de Paula <ddepaula@redhat.com> - 4.2.0-11.el8
- kvm-spapr-Enable-DD2.3-accelerated-count-cache-flush-in-.patch [bz#1796240]
- kvm-util-add-slirp_fmt-helpers.patch [bz#1798994]
- kvm-tcp_emu-fix-unsafe-snprintf-usages.patch [bz#1798994]
- kvm-virtio-add-ability-to-delete-vq-through-a-pointer.patch [bz#1791590]
- kvm-virtio-make-virtio_delete_queue-idempotent.patch [bz#1791590]
- kvm-virtio-reset-region-cache-when-on-queue-deletion.patch [bz#1791590]
- kvm-virtio-net-delete-also-control-queue-when-TX-RX-dele.patch [bz#1791590]
- Resolves: bz#1791590
  ([Q35] No "DEVICE_DELETED" event in qmp after unplug virtio-net-pci device)
- Resolves: bz#1796240
  (Enable hw accelerated cache-count-flush by default for POWER9 DD2.3 cpus)
- Resolves: bz#1798994
  (CVE-2020-8608 qemu-kvm: QEMU: Slirp: potential OOB access due to unsafe snprintf() usages [rhel-av-8.2.0])
2020-02-23 05:41:47 +00:00

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1.8 KiB
Diff

From 2f494c41715193522c52eafc6af2a5e33f88ceb9 Mon Sep 17 00:00:00 2001
From: Julia Suvorova <jusual@redhat.com>
Date: Wed, 19 Feb 2020 21:34:31 +0000
Subject: [PATCH 7/7] virtio-net: delete also control queue when TX/RX deleted
RH-Author: Julia Suvorova <jusual@redhat.com>
Message-id: <20200219213431.11913-5-jusual@redhat.com>
Patchwork-id: 93983
O-Subject: [RHEL-AV-8.2.0 qemu-kvm PATCH 4/4] virtio-net: delete also control queue when TX/RX deleted
Bugzilla: 1791590
RH-Acked-by: Danilo de Paula <ddepaula@redhat.com>
RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
RH-Acked-by: Michael S. Tsirkin <mst@redhat.com>
From: Yuri Benditovich <yuri.benditovich@daynix.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1708480
If the control queue is not deleted together with TX/RX, it
later will be ignored in freeing cache resources and hot
unplug will not be completed.
Cc: qemu-stable@nongnu.org
Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Message-Id: <20191226043649.14481-3-yuri.benditovich@daynix.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit d945d9f1731244ef341f74ede93120fc9de35913)
Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
---
hw/net/virtio-net.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
index db3d7c3..f325440 100644
--- a/hw/net/virtio-net.c
+++ b/hw/net/virtio-net.c
@@ -3101,7 +3101,8 @@ static void virtio_net_device_unrealize(DeviceState *dev, Error **errp)
for (i = 0; i < max_queues; i++) {
virtio_net_del_queue(n, i);
}
-
+ /* delete also control vq */
+ virtio_del_queue(vdev, max_queues * 2);
qemu_announce_timer_del(&n->announce_timer, false);
g_free(n->vqs);
qemu_del_nic(n->nic);
--
1.8.3.1