Re: [PATCH 1/2] conf: add crash to hyperv features

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On Mon, Oct 26, 2015 at 13:23:32 +0300, Dmitry Andreev wrote:
> Add crash CPU feature for Hyper-V. Hyper-V crash MSR's can be used
> by Hyper-V based guests to notify about occurred guest crash.
> 
> XML:
> <features>
>   <hyperv>
>     <crash state='on'/>
>   </hyperv>
> </features>

Sounds like this is related to an existing panic device we already
support. So what does enabling hv_crash do in QEMU? Is it an additional
channel to a panic device or is the panic device still needed even if
hv_crash is enabled? In any case, I think we should map this somehow to
the panic device instead of copying 1:1 the way QEMU enables hv_crash.

Just to make it clear, NACK until the design is sorted out.

Jirka

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