linux-kernel - Re: [PATCH v3 05/21] x86/virt/tdx: Detect P-SEAMLDR and TDX module

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Message-ID: <104a6959-3bd4-1e75-5e3d-5dc3ef025ed0@intel.com>
Date:   Tue, 26 Apr 2022 13:56:05 -0700
From:   Dave Hansen <dave.hansen@...el.com>
To:     Kai Huang <kai.huang@...el.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Cc:     seanjc@...gle.com, pbonzini@...hat.com, len.brown@...el.com,
        tony.luck@...el.com, rafael.j.wysocki@...el.com,
        reinette.chatre@...el.com, dan.j.williams@...el.com,
        peterz@...radead.org, ak@...ux.intel.com,
        kirill.shutemov@...ux.intel.com,
        sathyanarayanan.kuppuswamy@...ux.intel.com,
        isaku.yamahata@...el.com
Subject: Re: [PATCH v3 05/21] x86/virt/tdx: Detect P-SEAMLDR and TDX module

On 4/5/22 21:49, Kai Huang wrote:
> The P-SEAMLDR (persistent SEAM loader) is the first software module that
> runs in SEAM VMX root, responsible for loading and updating the TDX
> module.  Both the P-SEAMLDR and the TDX module are expected to be loaded
> before host kernel boots.

Why bother with the P-SEAMLDR here at all?  The kernel isn't loading the
TDX module in this series.  Why not just call into the TDX module directly?