Re: [Xen-devel] [PATCH v7] x86/hvm: Allow guest_request vm_events coming from userspace

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 28.08.17 at 11:38, <aisaila@xxxxxxxxxxxxxxx> wrote:
> In some introspection usecases, an in-guest agent needs to communicate
> with the external introspection agent.  An existing mechanism is
> HVMOP_guest_request_vm_event, but this is restricted to kernel usecases
> like all other hypercalls.
> 
> Introduce a mechanism whereby the introspection agent can whitelist the
> use of HVMOP_guest_request_vm_event directly from userspace.
> 
> Signed-off-by: Alexandru Isaila <aisaila@xxxxxxxxxxxxxxx>

For the parts it is applicable to:
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>

I'd like to note though that I find it a little odd for &d->arch to be
passed to a hook, instead of just d. But it'll be the maintainers of
that code to approve (or not) of that.

Jan


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