From: Stefan Hajnoczi <stefanha@gmail.com>
To: poletaev <Dmitry.Poletaev@ispras.ru>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] improve emulation correctness
Date: Fri, 2 May 2014 11:09:01 +0200 [thread overview]
Message-ID: <20140502090901.GE8005@stefanha-thinkpad.redhat.com> (raw)
In-Reply-To: <535a981f.86a6e00a.7dc9.5f5cSMTPIN_ADDED_BROKEN@mx.google.com>
On Thu, Apr 24, 2014 at 12:35:24PM +0400, poletaev wrote:
> There is a set of test, that checks QEMU CPU for similar behavior with real
> hardware (http://roberto.greyhats.it/projects/pills.html). Test
> reg/pill2579.c can detect, that program is execute in emulated environment.
> It is related with behavior of rcl instruction. If the number of shifted
> bits more than 1, OF of eflags become undefined. Real CPUs does not change
> OF, if it is undefined. QEMU do it anyway.
>
> Emulated program can execute that test and after that can understand
> environment not real.
>
>
>
> Signed-off-by: Dmitry Poletaev <observercool@gmail.com>
I see you resent the patch and it received attention the second time :).
Stefan
next prev parent reply other threads:[~2014-05-02 9:09 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <535a981f.86a6e00a.7dc9.5f5cSMTPIN_ADDED_BROKEN@mx.google.com>
2014-05-02 9:04 ` [Qemu-devel] [PATCH] improve emulation correctness Stefan Hajnoczi
2014-05-02 9:09 ` Stefan Hajnoczi [this message]
2014-05-06 12:16 ` poletaev
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