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[Qemu-devel] [PATCH v2 0/2] virtio-scsi: fix hotplug ->reset() vs event
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PATCH v2 0/2] virtio-scsi: fix hotplug ->reset() vs event race |
Date: |
Mon, 16 Jul 2018 09:37:30 +0100 |
v2:
* Drop Error **errp argument to post_plug() handler [Paolo]
* Move post_plug() call outside if (dev->hotplugged)
The virtio-scsi command virtqueues run during hotplug. This creates the
possibility of race conditions since the guest can submit commands while the
monitor is performing hotplug.
See Patch 2 for a fix for the ->reset() vs event race condition that Zhengui Li
encountered.
Stefan Hajnoczi (2):
qdev: add HotplugHandler->post_plug() callback
virtio-scsi: fix hotplug ->reset() vs event race
include/hw/hotplug.h | 11 +++++++++++
hw/core/hotplug.c | 10 ++++++++++
hw/core/qdev.c | 4 ++++
hw/scsi/virtio-scsi.c | 11 ++++++++++-
4 files changed, 35 insertions(+), 1 deletion(-)
--
2.17.1
- [Qemu-devel] [PATCH v2 0/2] virtio-scsi: fix hotplug ->reset() vs event race,
Stefan Hajnoczi <=