On Thu, Oct 11, 2012 at 03:27:03PM +0200, Avi Kivity wrote:
> vhost doesn't support guest iommus yet, indicate it to the user
> by gently depositing a core on their disk.
>
> Signed-off-by: Avi Kivity <[email protected]>
Actually there is no problem. virtio bypasses an IOMMU,
so vhost works fine by writing into guest memory directly.
So I don't think we need this patch.
> ---
> hw/vhost.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/hw/vhost.c b/hw/vhost.c
> index 0b4ac3f..cd5d9f5 100644
> --- a/hw/vhost.c
> +++ b/hw/vhost.c
> @@ -451,6 +451,8 @@ static void vhost_region_add(MemoryListener *listener,
> struct vhost_dev *dev = container_of(listener, struct vhost_dev,
> memory_listener);
>
> + assert(!memory_region_is_iommu(section.mr));
> +
> if (!vhost_section(section)) {
> return;
> }
> --
> 1.7.12
