All of lore.kernel.org
 help / color / mirror / Atom feed
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: speck@linutronix.de
Subject: [MODERATED] Re: [PATCH v4 7/8] [PATCH v4 7/8] Linux Patch #7
Date: Wed, 27 Jun 2018 10:32:52 -0400	[thread overview]
Message-ID: <20180627143251.GC21873@char.US.ORACLE.com> (raw)
In-Reply-To: <alpine.DEB.2.21.1806271248110.1781@nanos.tec.linutronix.de>

On Wed, Jun 27, 2018 at 12:52:57PM +0200, speck for Thomas Gleixner wrote:
> On Sat, 23 Jun 2018, speck for konrad.wilk_at_oracle.com wrote:
> 
> > x86/KVM/VMX: Add framework for having disjoint amount of MSRs to save/restore
> 
> I have a hard time to find the framework ...

I am being optimistic :-)
> 
> Changed that to:
> 
> x86/KVM/VMX: Extend add_atomic_switch_msr() to allow VMENTER only MSRs
> 
> The IA32_FLUSH_CMD MSR needs only to be written on VMENTER. Extend
> add_atomic_switch_msr() with an entry_only parameter to allow storing the
> MSR only in the guest (ENTRY) MST array.
> 
> Hmm?

<nods>

Albeit do you want to wait a bit until I have the performance numbers at
hand on how much this helps vs doing it the old-fashioned way (WRMSRL right
before VMENTER)?


> 
> Thanks,
> 
> 	tglx

  reply	other threads:[~2018-06-27 14:33 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-23 13:54 [MODERATED] [PATCH v4 7/8] [PATCH v4 7/8] Linux Patch #7 konrad.wilk
2018-06-27 10:52 ` Thomas Gleixner
2018-06-27 14:32   ` Konrad Rzeszutek Wilk [this message]
2018-06-27 14:47     ` [MODERATED] " Andrew Cooper

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=20180627143251.GC21873@char.US.ORACLE.com \
    --to=konrad.wilk@oracle.com \
    --cc=speck@linutronix.de \
    /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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.