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Re: [Qemu-devel] [PATCH] improve emulation correctness
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH] improve emulation correctness |
Date: |
Fri, 2 May 2014 11:09:01 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
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 <address@hidden>
I see you resent the patch and it received attention the second time :).
Stefan