On Fri, 26 Aug 2011 15:40:08 +1000, David Gibson
wrote:
> Near the top of hw/virtio.c we have this:
>
> /* QEMU doesn't strictly need write barriers since everything runs in
> * lock-step. We'll leave the calls to wmb() in though to make it
> obvious for
> * KVM or if kqemu gets SMP support.
On 08/26/2011 07:40 AM, David Gibson wrote:
Near the top of hw/virtio.c we have this:
/* QEMU doesn't strictly need write barriers since everything runs in
* lock-step. We'll leave the calls to wmb() in though to make it
obvious for
* KVM or if kqemu gets SMP support.
* In any case, we
Near the top of hw/virtio.c we have this:
/* QEMU doesn't strictly need write barriers since everything runs in
* lock-step. We'll leave the calls to wmb() in though to make it
obvious for
* KVM or if kqemu gets SMP support.
* In any case, we must prevent the compiler from reordering the code
