linux-kernel - Re: [PATCH 1/2] x86/virt/tdx: Retrieve TDX module version

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Message-ID: <CAGtprH8eXwi-TcH2+-Fo5YdbEwGmgLBh9ggcDvd6N=bsKEJ_WQ@mail.gmail.com>
Date: Fri, 24 Oct 2025 07:20:18 -0700
From: Vishal Annapurve <vannapurve@...gle.com>
To: Chao Gao <chao.gao@...el.com>
Cc: linux-coco@...ts.linux.dev, linux-kernel@...r.kernel.org, x86@...nel.org, 
	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>, 
	Dave Hansen <dave.hansen@...ux.intel.com>, "H. Peter Anvin" <hpa@...or.com>, 
	"Kirill A. Shutemov" <kas@...nel.org>, Kai Huang <kai.huang@...el.com>, 
	Paolo Bonzini <pbonzini@...hat.com>, Dan Williams <dan.j.williams@...el.com>
Subject: Re: [PATCH 1/2] x86/virt/tdx: Retrieve TDX module version

On Tue, Sep 30, 2025 at 7:24 PM Chao Gao <chao.gao@...el.com> wrote:
>
> Each TDX module is associated with a version in the x.y.z format, where x
> represents the major version, y the minor version, and z the update
> version. Knowing the running TDX module version is valuable for bug
> reporting and debugging.
>
> Retrieve the TDX module version using the existing metadata reading
> interface, in preparation for exposing it to userspace via sysfs.
>

In addition to exposing the TDX module version via sysfs, it would be
helpful to have the TDX module version captured in dmesg logs/console.