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Subject: Re: [RFC PATCH V3 09/11] HV/IOMMU: Enable swiotlb bounce buffer for
 Isolation VM
To:     Tianyu Lan <ltykernel@gmail.com>, kys@microsoft.com,
        haiyangz@microsoft.com, sthemmin@microsoft.com, wei.liu@kernel.org,
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Cc:     iommu@lists.linux-foundation.org, linux-arch@vger.kernel.org,
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References: <20210530150628.2063957-1-ltykernel@gmail.com>
 <20210530150628.2063957-10-ltykernel@gmail.com>
From:   Boris Ostrovsky <boris.ostrovsky@oracle.com>
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On 5/30/21 11:06 AM, Tianyu Lan wrote:
> @@ -91,6 +92,6 @@ int pci_xen_swiotlb_init_late(void)
>  EXPORT_SYMBOL_GPL(pci_xen_swiotlb_init_late);
>  
>  IOMMU_INIT_FINISH(2,
> -		  NULL,
> +		  hyperv_swiotlb_detect,
>  		  pci_xen_swiotlb_init,
>  		  NULL);


Could you explain this change?


-boris