Re: [Qemu-devel] [PATCH v1 3/3] intel_iommu: add scalable-mode option to make scalable mode work

[Peter Xu]

On Tue, Mar 05, 2019 at 10:34:55AM +0800, Yi Sun wrote:
> This patch adds an option to provide flexibility for user to expose
> Scalable Mode to guest. User could expose Scalable Mode to guest by
> the config as below:
> 
> "-device intel-iommu,caching-mode=on,scalable-mode=on"
> 
> The Linux iommu driver has supported scalable mode. Please refer below
> patch set:
> 
>     https://www.spinics.net/lists/kernel/msg2985279.html
> 
> Signed-off-by: Liu, Yi L <address@hidden>
> Signed-off-by: Yi Sun <address@hidden>
> ---
> RFC v2->v1:
>     - move 's->dma_drain' check from 'vtd_init' to 'vtd_decide_config'.

Reviewed-by: Peter Xu <address@hidden>

-- 
Peter Xu