Re: [Xen-devel] AMD / SVM vm_event support

[Tamas K Lengyel <tamas@xxxxxxxxxxxxx>]

On Thu, Jan 18, 2018 at 6:19 AM, Razvan Cojocaru
<rcojocaru@xxxxxxxxxxxxxxx> wrote:
> Hello,
>
> We're looking at potentially working with vm_event on SVM hosts. To that
> end, we've removed a few cpu_has_vmx tests and saw that some things just
> work.
>
> That is, unfortunately, not the case for EPT events.
>
> There's this old thread about NPT support:
>
> https://lists.gt.net/xen/devel/339571
>
> but it looks like nothing came of it.
>
> Has there been more Xen development work, or at least discussion on this
> topic that we are not aware of?

I'm not aware of any work in this area (there were some patches to
implement PV memory events but those never got merged either).

>
> As for the things that do work, any objections to submitting patches
> that allows an introspection application to subscribe to what's
> available on SVM as well, with the proper capabilities set in
> arch_monitor_get_capabilities()?

From my side this would be a welcome addition!

Tamas

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