Re: [PATCH v2 2/4] intel_iommu: Support IR-only mode without DMA translation

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On Thu, Dec 09, 2021 at 10:08:38PM +0000, David Woodhouse wrote:
> From: David Woodhouse <dwmw@xxxxxxxxxxxx>
> 
> By setting none of the SAGAW bits we can indicate to a guest that DMA
> translation isn't supported. Tested by booting Windows 10, as well as
> Linux guests with the fix at https://git.kernel.org/torvalds/c/c40aaaac10
> 
> Signed-off-by: David Woodhouse <dwmw@xxxxxxxxxxxx>
> Acked-by: Claudio Fontana <cfontana@xxxxxxx>

Reviewed-by: Peter Xu <peterx@xxxxxxxxxx>

-- 
Peter Xu




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