From: malc <av1474@comtv.ru>
To: Andriy Gapon <avg@FreeBSD.org>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] bug in popcnt emulation with some register operand(s)?
Date: Thu, 11 Oct 2012 01:09:58 +0400 (MSK) [thread overview]
Message-ID: <alpine.LNX.2.00.1210110108250.21827@linmac> (raw)
In-Reply-To: <5075E2B6.9060603@FreeBSD.org>
On Thu, 11 Oct 2012, Andriy Gapon wrote:
> on 08/10/2012 12:02 Andriy Gapon said the following:
> > on 08/10/2012 10:52 malc said the following:
> >> On Mon, 8 Oct 2012, Andriy Gapon wrote:
> >>
> >>>
> >>> I am running Qemu (plain, no kvm, etc) on an AMD 10h machine that
> >>> provides popcnt instruction. Qemu advertises availability of pocnt
> >>> to a guest as well. What I see in the guest that popcnt
> >>> 0x20(%r12),%r8 instruction actually placed its result into %rax.
> >>> With %rdi and %rax operands the instruction worked fine though.
> >>>
> >>>
> >>
> >> Does following work?
> >
> > It does! Thank you very much.
>
> Do you plan to commit this fix?
> Is there anything that I should do to make that happen (sooner)?
>
Submit a patch with a well thought out comment and it'll be commited.
[..snip..]
--
mailto:av1474@comtv.ru
next prev parent reply other threads:[~2012-10-10 21:10 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-07 23:12 [Qemu-devel] bug in popcnt emulation with some register operand(s)? Andriy Gapon
2012-10-08 7:52 ` malc
2012-10-08 9:02 ` Andriy Gapon
2012-10-10 21:03 ` Andriy Gapon
2012-10-10 21:09 ` malc [this message]
2012-10-14 10:25 ` Andriy Gapon
2012-10-14 10:56 ` malc
2012-10-14 11:01 ` Andriy Gapon
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