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    SubjectRe: [Xen-devel] [PATCH 1/3] PAD helper for native and paravirt platform
    >>> On 28.03.12 at 16:27, Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> wrote:
    > On Wed, Mar 28, 2012 at 01:42:45PM +0100, Jan Beulich wrote:
    >> >>> On 28.03.12 at 12:48, "Liu, Jinsong" <jinsong.liu@intel.com> wrote:
    >> > But just curious, what's the purpose and benefit of exposing mwait to dom0?
    >
    >
    > So that cstate.c can evaluate properly the deeper C-states and
    > xen-acpi-processor
    > can upload them to the hypervisor.
    >
    >> > I remember xen against doing so before.
    >>
    >> And I don't recall anything having changed in that regard.
    >
    > Jan, you Acked the patch in question: https://lkml.org/lkml/2012/2/24/129

    But that isn't a Xen patch. Xen isn't (and shouldn't be) exposing mwait.

    Jan



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