RE: [PATCH Part2 v6 02/49] iommu/amd: Introduce function to check SEV-SNP support

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[AMD Official Use Only - General]

Hello Boris,

>> This function is required to ensure that IOMMU supports the SEV-SNP 
>> feature before enabling the SNP feature and calling SNP_INIT.
>> This IOMMU support check is done in the AMD IOMMU driver with the
>> iommu_sev_snp_supported() function so it is exported by the IOMMU 
>> driver and called by sev module

>What sev module?

I meant the kvm-amd module. 

>The call to iommu_sev_snp_supported() is done by snp_rmptable_init() which is in arch/x86/kernel/sev.c. AFAICT.

>And that is not a module. But function exports are done for modules.

>So that export looks superfluous.

Yes realized this is called in arch/x86/kernel/sev.c, so yes the export is not needed and will remove it.

Thanks,
Ashish




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