Re: [ANNOUNCE] kvm-14 release

Avi Kivity
2007-02-22T16:38:11Z

Laurent Vivier wrote:
> There are remaining issues : libposix-aio uses kernel AIO, so files must be
> opened using O_DIRECT and buffers must be aligned. libposix-aio is able to
> manage other cases but this has a performance cost.
>
>

Because the guest is also doing dma, the buffers are expected to be
aligned (it might be different if using pio, but unlikely).

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