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From: "Jan Beulich" <JBeulich@suse.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: andrew.cooper3@citrix.com, xen-devel@lists.xenproject.org
Subject: Re: Regression introduced by a3db233 x86emul: use DstEax also for {, I}{MUL, DIV
Date: Thu, 29 Sep 2016 03:53:05 -0600	[thread overview]
Message-ID: <57ED00A10200007800113AEA@prv-mh.provo.novell.com> (raw)
In-Reply-To: <57ECFC2C0200007800113AB1@prv-mh.provo.novell.com>

>>> On 29.09.16 at 11:34, <JBeulich@suse.com> wrote:
>>>> On 29.09.16 at 11:11, <konrad.wilk@oracle.com> wrote:
>> The commit a3db233 x86emul: use DstEax also for {,I}{MUL,DIV}
>> introduces an regression when doing SR-IOV passthrough.
> 
> I'll see if I can repro, but I can't see anything wrong with the
> commit (yet).

And sadly I can't. Also - is SR-IOV pass-through really related here?
At the point the issue occurs it shouldn't matter yet.

For investigation, could you make the vgabios.bin available
somewhere (might even be small enough to attach to mail)? I
ask because the binary I have doesn't even come close to have
the instruction byte sequence you ran into the issue with.

Jan


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  reply	other threads:[~2016-09-29  9:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-29  9:11 Regression introduced by a3db233 x86emul: use DstEax also for {, I}{MUL, DIV Konrad Rzeszutek Wilk
2016-09-29  9:34 ` Jan Beulich
2016-09-29  9:53   ` Jan Beulich [this message]
2016-09-29 11:13   ` Jan Beulich

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