From: Marcel Apfelbaum <marcel@redhat.com>
To: Zhong Yang <yang.zhong@intel.com>, qemu-devel@nongnu.org
Cc: pbonzini@redhat.com
Subject: Re: [Qemu-devel] About virtio device hotplug in Q35!
Date: Mon, 24 Jul 2017 08:05:54 +0300 [thread overview]
Message-ID: <9f3c0221-6d62-7d5e-0f86-9cd839e2c34e@redhat.com> (raw)
In-Reply-To: <20170724014741.GA16720@yangzhon-Virtual>
On 24/07/2017 4:47, Zhong Yang wrote:
> Hello all,
>
Hi,
> When we did virtio device hotplug in Q35 platform, which always failed in hotplug.
>
Can we please see the QEMU command line and the description
of the hotplug steps?
> Would you please tell me how to configure VM to make virtio device hotplug work in Q35 platform? Many thanks!
>
The virtio devices can be hot-plugged into PCIe Root Ports:
HMP example:
Start the VM with several PCIe Root Ports:
<qemu-bin> -M q35 -monitor stdio \
-device pcie-root-port,id=rp1 \
-device pcie-root port,id=rp2 \
...
Then from QEMU's hmp:
device-add virtio-net-pci,id=n1,bus=rp1
...
I hope it helps,
Marcel
>
> Regards,
>
> Yang zhong
>
next prev parent reply other threads:[~2017-07-24 5:06 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-24 1:47 [Qemu-devel] About virtio device hotplug in Q35! Zhong Yang
2017-07-24 5:05 ` Marcel Apfelbaum [this message]
2017-07-24 11:26 ` Zhong Yang
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