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Re: [Qemu-devel] How to check if Vt-d is capable of posted-interrupt?
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From: |
Jintack Lim |
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Subject: |
Re: [Qemu-devel] How to check if Vt-d is capable of posted-interrupt? |
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Date: |
Mon, 30 Apr 2018 13:44:23 -0400 |
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On Mon, Apr 30, 2018 at 10:11 AM, Jintack Lim <address@hidden> wrote:
> Hi,
>
> I wonder how to check if Vt-d is capable of posted-interrupt? I'm
> using Intel E5-2630 v3.
>
> I was once told that APICv and posted-interrupt capability always come
> together. But it seems like my cpu support APICv
> (/sys/module/kvm_intel/parameters/enable_apicv is Y), but
> posted-interrupt capability is only shipped with the next generation
> of the cpu (E5-2600 v4, which is Broadwell).
>
> What would be an easy way to check this?
>
> Thanks,
> Jintack