From: Paolo Bonzini <bonzini@gnu.org>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] [Bug 1469342] Re: qemu-i386 pentium3/athlon incorrect instruction set
Date: Fri, 18 Sep 2015 13:04:08 -0000 [thread overview]
Message-ID: <20150918130408.3195.54740.malone@wampee.canonical.com> (raw)
In-Reply-To: 20150627003937.6939.65806.malonedeb@gac.canonical.com
QEMU doesn't try to mimic the exact set of instructions for a processor,
unfortunately. Virtualization solutions like KVM also do not allow you
to do that, so the case for this feature is relatively minor.
However, patches are welcome.
** Changed in: qemu
Status: New => Won't Fix
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https://bugs.launchpad.net/bugs/1469342
Title:
qemu-i386 pentium3/athlon incorrect instruction set
Status in QEMU:
Won't Fix
Bug description:
Running a binary containing a movsd instruction (SSE2) in 32-bit
qemu-i386 from 20150609 using the -cpu pentium3 switch results in
flawless execution whereas it should crash with SIGILL as P3 only had
SSE and not SSE2.
To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1469342/+subscriptions
next prev parent reply other threads:[~2015-09-18 13:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-27 0:39 [Qemu-devel] [Bug 1469342] [NEW] qemu-i386 pentium3 incorrect instruction set PeteVine
2015-09-18 12:37 ` [Qemu-devel] [Bug 1469342] " PeteVine
2015-09-18 13:04 ` Paolo Bonzini [this message]
2015-09-18 13:34 ` [Qemu-devel] [Bug 1469342] Re: qemu-i386 pentium3/athlon " PeteVine
2015-09-18 13:58 ` PeteVine
2015-09-18 14:31 ` PeteVine
2015-09-19 10:13 ` Marina Kovalevna
2015-09-25 22:47 ` PeteVine
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