From: Avi Kivity <avi.kivity@gmail.com>
To: Paolo Bonzini <pbonzini@redhat.com>,
Alex Williamson <alex.williamson@redhat.com>,
Eric Northup <digitaleric@google.com>
Cc: KVM <kvm@vger.kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] KVM: x86 emulator: emulate MOVNTDQ
Date: Sun, 13 Jul 2014 19:12:23 +0300 [thread overview]
Message-ID: <53C2AFE7.5080505@gmail.com> (raw)
In-Reply-To: <53C04BDB.1080707@redhat.com>
On 07/11/2014 11:40 PM, Paolo Bonzini wrote:
> Il 11/07/2014 22:05, Alex Williamson ha scritto:
>> Which will return 'true' for this whether I specify Aligned or not. If
>> the standard convention is to make it explicit, I'm happy to add the
>> extra flag, but I think we already #GP on unaligned as implemented here.
>> Thanks,
>
> We should still specify Aligned if the corresponding AVX instruction
> requires an aligned operand. ISTR that this is not the case for
> MOVNTDQ, so your patch is correct. I'll check the SDM more carefully
> next Monday.
>
The explicitly aligned/unaligned instructions have an A or a U to
indicate this (e.g. MOVDQU = explicitly unaligned, MOVDQA = explicitly
aligned, MOVNTDQ = default).
next prev parent reply other threads:[~2014-07-13 16:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-11 17:56 [PATCH] KVM: x86 emulator: emulate MOVNTDQ Alex Williamson
2014-07-11 19:31 ` Eric Northup
2014-07-11 20:05 ` Alex Williamson
2014-07-11 20:40 ` Paolo Bonzini
2014-07-13 16:12 ` Avi Kivity [this message]
2014-08-29 12:55 ` Paolo Bonzini
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