Re: [PATCH v2 09/12] viridian: add ExProcessorMasks variant of the IPI hypercall

[Jan Beulich <jbeulich@xxxxxxxx>]

On 20.11.2020 10:48, Paul Durrant wrote:
> From: Paul Durrant <pdurrant@xxxxxxxxxx>
> 
> A previous patch introduced variants of the flush hypercalls that take a
> 'Virtual Processor Set' as an argument rather than a simple 64-bit mask.
> This patch introduces a similar variant of the HVCALL_SEND_IPI hypercall
> (HVCALL_SEND_IPI_EX).
> 
> NOTE: As with HVCALL_FLUSH_VIRTUAL_ADDRESS_SPACE/LIST_EX, a guest should
>       not yet issue the HVCALL_SEND_IPI_EX hypercall as support for
>       'ExProcessorMasks' is not yet advertised via CPUID.
> 
> Signed-off-by: Paul Durrant <pdurrant@xxxxxxxxxx>

I guess most remarks given for the previous patch apply here
as well.

Jan