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Re: [Qemu-devel] [Crucial bug] Qemu-2.0.0 do not support virtio-net hot

From: Andreas Färber
Subject: Re: [Qemu-devel] [Crucial bug] Qemu-2.0.0 do not support virtio-net hot plug/unplug exceed two times
Date: Tue, 06 May 2014 15:36:38 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0

Hi Gonglei,

Am 06.05.2014 14:52, schrieb Gonglei (Arei):
> Step 1: I executed "device_add virtio-net-pci,id=net1"
> with "info pci", I found the net1, showing as below:
> Bus  0, device   4, function 0:
>     Ethernet controller: PCI device 1af4:1000
>       IRQ 0.
>       BAR0: I/O at 0xffffffffffffffff [0x001e].
>       BAR1: 32 bit memory at 0xffffffffffffffff [0x00000ffe].
>       BAR6: 32 bit memory at 0xffffffffffffffff [0x0003fffe].
>       id "net1"
> Step 2: I executed " device_del net1", but the net1 still existed.
>> In QMP, you get a DEVICE_DELETED event when the unplug completes.  See
>> qmp/qmp-events.txt. 
> Actually, I don't get the event, as the net1 can't be unplug. 
> BTW, when I execute step 1 "device_add virtio-net-pci,id=net1", I don't find 
> the 
> Ethernet controller of virtio-net by "lspci " in the guest OS. 
> TBH, the command execution failed despite we can see net1 with "info pci".

Sounds like the acpiphp kernel module is not loaded inside the guest?


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