Re: [PATCH 2/8] KVM: x86 emulator: use aligned variants of SSE registerops

From: Avi Kivity
Date: Wed Sep 05 2012 - 05:43:04 EST


On 09/04/2012 03:51 PM, Mathias Krause wrote:
> On Tue, Sep 4, 2012 at 2:13 PM, Avi Kivity <avi@xxxxxxxxxx> wrote:
>> On 09/04/2012 03:09 PM, Avi Kivity wrote:
>>> On 08/30/2012 02:30 AM, Mathias Krause wrote:
>>>> As the the compiler ensures that the memory operand is always aligned
>>>> to a 16 byte memory location,
>>>
>>> I'm not sure it does. Is V4SI aligned? Do we use alignof() to
>>> propagate the alignment to the vcpu allocation code?
>
> I checked that to by introducing a dummy char member in struct operand
> that would have misaligned vec_val but, indeed, the compiler ensured
> it's still 16 byte aligned.

Ok.

>
>>
>> We actually do. But please rebase the series against next, I got some
>> conflicts while applying.
>
> If "next" means kvm/next
> (i.e.git://git.kernel.org/pub/scm/virt/kvm/kvm.git#next) here, the
> whole series applies cleanly for me.
> HEAD in kvm/next is 9a78197 "KVM: x86: remove unused variable from
> kvm_task_switch()" here. Albeit the series was build against kvm/next
> at the time as a81aba1 "KVM: VMX: Ignore segment G and D bits when
> considering whether we can virtualize" was HEAD in this branch.
>
> Could you please retry and show me the conflicts you get?

I tried again and it applies cleanly now, so it must have been a user
error earlier.

All applied, thanks.

--
error compiling committee.c: too many arguments to function
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