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Re: [PATCH v2 2/4] intel_iommu: Support IR-only mode without DMA transla
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From: |
Peter Xu |
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Subject: |
Re: [PATCH v2 2/4] intel_iommu: Support IR-only mode without DMA translation |
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Date: |
Thu, 16 Dec 2021 16:47:28 +0800 |
On Thu, Dec 09, 2021 at 10:08:38PM +0000, David Woodhouse wrote:
> From: David Woodhouse <dwmw@amazon.co.uk>
>
> 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@amazon.co.uk>
> Acked-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
--
Peter Xu