linux-kernel - Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

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Date:	Mon, 17 Mar 2014 08:16:35 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Paolo Bonzini <pbonzini@...hat.com>,
	Igor Mammedov <imammedo@...hat.com>,
	linux-kernel@...r.kernel.org
CC:	gleb@...nel.org, tglx@...utronix.de, mingo@...hat.com,
	x86@...nel.org, kvm@...r.kernel.org
Subject: Re: [PATCH 0/2] KVM: x86 emulator: emulate MOVAPS and MOVAPD SSE instructions

After seeing the sheer number of one-off additions, I'm wondering if going through the opcode map systematically and see what is still missing might not be a bad idea.

On March 17, 2014 2:30:43 AM PDT, Paolo Bonzini <pbonzini@...hat.com> wrote:
>Il 15/03/2014 23:42, H. Peter Anvin ha scritto:
>> Stupid question... what instructions do NOT need emulsion in KVM? It
>would seem that at least anything that touches memory would?
>
>Yes, indeed.  Anything that touches memory can be used on MMIO and then
>
>needs emulation.
>
>Paolo
>
>> On March 15, 2014 1:01:58 PM PDT, Igor Mammedov <imammedo@...hat.com>
>wrote:
>>> MS HCK test fails on 32-bit Windows 8.1 due to missing MOVAPS
>>> instruction emulation, this series adds it and while at it,
>>> it adds emulation of MOVAPD which is trivial to implement on
>>> top of MOVAPS.
>>>
>>> Igor Mammedov (2):
>>>  KVM: x86 emulator: emulate MOVAPS
>>>  KVM: x86 emulator: emulate MOVAPD
>>>
>>> arch/x86/kvm/emulate.c | 8 +++++++-
>>> 1 file changed, 7 insertions(+), 1 deletion(-)
>>

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