From: "Michael Kelley (EOSG)" <Michael.H.Kelley@microsoft.com>
To: Yi Sun <yi.y.sun@linux.intel.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: "x86@kernel.org" <x86@kernel.org>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"chao.p.peng@intel.com" <chao.p.peng@intel.com>,
"chao.gao@intel.com" <chao.gao@intel.com>,
"isaku.yamahata@intel.com" <isaku.yamahata@intel.com>,
Tianyu Lan <Tianyu.Lan@microsoft.com>,
KY Srinivasan <kys@microsoft.com>,
Haiyang Zhang <haiyangz@microsoft.com>,
Stephen Hemminger <sthemmin@microsoft.com>
Subject: RE: [PATCH v2 1/2] X86/Hyper-V: Add Guest IDLE MSR support
Date: Fri, 21 Sep 2018 16:52:52 +0000 [thread overview]
Message-ID: <CY4PR21MB0773B209A6BE8DC3463F7A32DC120@CY4PR21MB0773.namprd21.prod.outlook.com> (raw)
In-Reply-To: <1537514712-62434-2-git-send-email-yi.y.sun@linux.intel.com>
From: Yi Sun <yi.y.sun@linux.intel.com> Sent: Friday, September 21, 2018 12:25 AM
>
> Hyper-V may expose a HV_X64_MSR_GUEST_IDLE MSR. We can read
> HYPERV_CPUID_FEATURES eax to check it. Read this MSR can
> trigger the guest's transition to the idle power state which
> can be exited by an IPI even if IF flag is disabled.
>
> Cc: "K. Y. Srinivasan" <kys@microsoft.com>
> Cc: Haiyang Zhang <haiyangz@microsoft.com>
> Cc: Stephen Hemminger <sthemmin@microsoft.com>
> Signed-off-by: Yi Sun <yi.y.sun@linux.intel.com>
> ---
> arch/x86/include/asm/hyperv-tlfs.h | 5 +++++
> 1 file changed, 5 insertions(+)
>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
next prev parent reply other threads:[~2018-09-21 16:52 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-21 7:25 [PATCH v2 0/2] Enable PV qspinlock for Hyper-V Yi Sun
2018-09-21 7:25 ` [PATCH v2 1/2] X86/Hyper-V: Add Guest IDLE MSR support Yi Sun
2018-09-21 16:52 ` Michael Kelley (EOSG) [this message]
2018-09-21 7:25 ` [PATCH v2 2/2] locking/pvqspinlock, hv: Enable PV qspinlock for Hyper-V Yi Sun
2018-09-21 17:02 ` Michael Kelley (EOSG)
2018-09-25 7:11 ` Yi Sun
2018-09-21 19:09 ` kbuild test robot
2018-09-26 2:15 ` kbuild test robot
2018-09-26 8:23 ` Thomas Gleixner
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CY4PR21MB0773B209A6BE8DC3463F7A32DC120@CY4PR21MB0773.namprd21.prod.outlook.com \
--to=michael.h.kelley@microsoft.com \
--cc=Tianyu.Lan@microsoft.com \
--cc=chao.gao@intel.com \
--cc=chao.p.peng@intel.com \
--cc=haiyangz@microsoft.com \
--cc=isaku.yamahata@intel.com \
--cc=kys@microsoft.com \
--cc=linux-kernel@vger.kernel.org \
--cc=sthemmin@microsoft.com \
--cc=tglx@linutronix.de \
--cc=x86@kernel.org \
--cc=yi.y.sun@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).