Re: [Qemu-devel] [PULL 00/23] TCG and misc patches for 2.7 hard freeze from 2016-07-18

[Peter Maydell]

On 18 July 2016 at 12:59, Paolo Bonzini <address@hidden> wrote:
>
>
> On 18/07/2016 13:57, Peter Maydell wrote:
>> On 18 July 2016 at 12:54, Paolo Bonzini <address@hidden> wrote:
>>> On 18/07/2016 13:51, Peter Maydell wrote:
>>>> Looks like an attempt to do an atomic op on a larger-than-host-pointer 
>>>> type.
>>>
>>> Hmm, atomic_set should be acceptable even on 64-bit.
>>
>> How does that work, when the host might not have an atomic
>> 64-bit write?
>
> All hosts we support should have it.

32-bit ARM does not guarantee that you can have 64-bit atomic
operations.

thanks
-- PMM