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Re: [Qemu-devel] Infinite IRQ injection when trying windows 10
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From: |
Dr. David Alan Gilbert |
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Subject: |
Re: [Qemu-devel] Infinite IRQ injection when trying windows 10 |
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Date: |
Wed, 19 Oct 2016 19:59:56 +0100 |
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User-agent: |
Mutt/1.7.1 (2016-10-04) |
* //-//ani Nemati (address@hidden) wrote:
> Hi,
>
> Recently I was trying windows 10 on top of Qemu-KVM and I saw 4% of CPU is
> being used all the time even when the windows VM is idle. I tested it for
> nested VM (Linux(L0)->Linux(L1)->windows(L2)) and I saw CPU usage increased
> upto 45%. I traced my host and I saw there is an infinite interrupt loop
> which injected by qemu main process to my windows VM. I also traced the
> windows machine and I saw System process is handling that interrupt. The
> main qemu process injects IRQ 209 periodically. I wonder if it is a
> bug!!!!!
What's the qemu commandline you're using and what version of qemu?
Also, what host hardware?
Dave
> Cheers,
> Hani
--
Dr. David Alan Gilbert / address@hidden / Manchester, UK