Re: [Xen-devel] [PATCH v4 14/14] xen/x86: setup PVHv2 Dom0 ACPI tables

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 22.12.16 at 17:17, <boris.ostrovsky@xxxxxxxxxx> wrote:
> On 12/22/2016 07:17 AM, Roger Pau Monne wrote:
>> Maybe Boris has some ideas about how to do CPU hotplug for Dom0?
> 
> Why would Xen need to be able to parse the AML that is intended to be
> executed by dom0? I'd think that all the hypervisor would need to do is
> to load it into memory, not any different from how it's done for regular
> guests.

Well, if Dom0 executed the unmodified _MAT, it would get back
data relating to the physical CPU. Roger is overriding MADT to
present virtual CPU information to Dom0, and this would likewise
need to happen for the _MAT return value.

Jan


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