On Wed, 2008-11-05 at 22:49 -0600, Hollis Blanchard wrote:
> diff --git a/qemu/hw/virtio.c b/qemu/hw/virtio.c
> --- a/qemu/hw/virtio.c
> +++ b/qemu/hw/virtio.c
> @@ -56,6 +56,10 @@
> */
> #define wmb() do { } while (0)
>
> +#define VRING_PAGE_SIZE (1<<12)
> +
> +#define ALIGN(x, a) (((x)+(a)-1) & ~((a)-1))
Might be better to do:
#define VRING_PAGE_SIZE (1<<12)
#define VRING_PAGE_MASK ~(VRING_PAGE_SIZE - 1)
#define VRING_PAGE_ALIGN(x) (((x) + VRING_PAGE_SIZE - 1) & VRING_PAGE_MASK)
Cheers,
Mark
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