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[4.17?] Re: [PATCH v3 0/5] x86/mwait-idle: (remaining) SPR + (new) ADL support
- To: Henry Wang <Henry.Wang@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 13 Oct 2022 14:25:51 +0200
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- Delivery-date: Thu, 13 Oct 2022 12:26:01 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Henry,
On 18.08.2022 15:02, Jan Beulich wrote:
> New changes have appeared in the meantime, in particular one partly undoing
> what we still haven't merged (patch 1 here).
>
> 1: add 'preferred_cstates' module argument
> 2: add core C6 optimization for SPR
> 3: add AlderLake support
> 4: disable IBRS during long idle
> 5: make SPR C1 and C1E be independent
just now acks have completed coming in for this series of ports of earlier
Linux commits. This all targets newer hardware which of course we'd like
to properly support with 4.17. Unfortunately the series was kind of lost
with all the security work which had been ongoing. Therefore I'd like to
ask (in part also motivated by Andrew to do so) that you consider still
allowing in this series. In the (I think) not very likely case of problems
(first and foremost because of the changes coming from Linux, rather than
being homegrown) people always have the option of simply turning off the
use of this driver on their systems.
Thanks, Jan
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