Re: [PATCH v4 1/2] x86/sev: Clear RMPOPT when segmented RMP is disabled by firmware

[Borislav Petkov]

On Mon, Nov 02, 2026 at 02:21:28PM -0600, Kalra, Ashish wrote:
> As i mentioned above, the cpuid-dep only fires when the SEV_SNP CPUID
> bit is cleared though, and the IOMMU "can't enable SNP" path clears only
> CC_ATTR_HOST_SEV_SNP, not the CPUID bit. 

I believe the IOMMU path is too late in the boot for the CPUID bit anyway.

> So we still need the rmpopt_init() (in patch 2 of this series) move into
> snp_rmptable_init() to avoid announcing RMPOPT / allocating the workqueue on
> a host where the IOMMU turned SNP off — this dep doesn't cover that case.

Sure.

Lemme put everything into a proper patch now.

Thx.

-- 
Regards/Gruss,
    Boris.

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