From: Gleb Natapov <gleb@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Arthur Chunqi Li <yzt356@gmail.com>, kvm <kvm@vger.kernel.org>,
Jan Kiszka <jan.kiszka@web.de>
Subject: Re: How to recreate MOV-SS blocking vmentry fail
Date: Wed, 11 Sep 2013 16:03:08 +0300 [thread overview]
Message-ID: <20130911130307.GD17294@redhat.com> (raw)
In-Reply-To: <52306993.2030907@redhat.com>
On Wed, Sep 11, 2013 at 03:01:07PM +0200, Paolo Bonzini wrote:
> Il 11/09/2013 14:53, Gleb Natapov ha scritto:
> >> > I was trying to recreate MOV-SS blocking vmentry fail (Intel SDM 26.1,
> >> > 5. a). Here the manual refers to Table 24-3, but later in 26.3.1.5
> >> > also describe it. I got confused how this scenario can be recreated.
> >> > Do you have any ideas?
> >> >
> > mov $0, %ss
> > vmlaunch
>
> Probably better to save %ss somewhere around these instructions... :)
>
Details, details :) It can be:
mov %ss, tmp
mov tmp, $ss
vmlaunch
--
Gleb.
next prev parent reply other threads:[~2013-09-11 13:03 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-11 12:49 How to recreate MOV-SS blocking vmentry fail Arthur Chunqi Li
2013-09-11 12:53 ` Gleb Natapov
2013-09-11 12:55 ` Arthur Chunqi Li
2013-09-11 12:57 ` Gleb Natapov
2013-09-11 13:01 ` Paolo Bonzini
2013-09-11 13:03 ` Gleb Natapov [this message]
2013-09-11 13:04 ` Arthur Chunqi Li
2013-09-11 13:44 ` Gleb Natapov
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