Re: [PATCH v4 8/9] iommu/amd: Do not support IOMMU_DOMAIN_IDENTITY after SNP is enabled

[Joerg Roedel]

On Wed, Jul 13, 2022 at 05:56:50PM -0500, Suravee Suthikulpanit wrote:
> +	/*
> +	 * Since DTE[Mode]=0 is prohibited on SNP-enabled system,
> +	 * default to use IOMMU_DOMAIN_DMA[_FQ].
> +	 */
> +	if (WARN_ONCE(amd_iommu_snp_en && (type == IOMMU_DOMAIN_IDENTITY),
> +		      "Cannot allocate identity domain due to SNP\n"))

I removed that WARN_ON_ONCE() here, this is really no condition someone
should worry about.

Regards,

	Joerg