From: Tony Lindgren <tony.lindgren@linux.intel.com>
To: Vishal Verma <vishal.l.verma@intel.com>
Cc: linux-kernel@vger.kernel.org, linux-coco@lists.linux.dev,
kvm@vger.kernel.org, x86@kernel.org,
Chao Gao <chao.gao@intel.com>,
Dan Williams <dan.j.williams@intel.com>,
Kai Huang <kai.huang@intel.com>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Dave Hansen <dave.hansen@linux.intel.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Kiryl Shutsemau <kas@kernel.org>,
Rick Edgecombe <rick.p.edgecombe@intel.com>
Subject: Re: [PATCH v2 1/2] x86/virt/tdx: Retrieve TDX module version
Date: Mon, 19 Jan 2026 10:12:07 +0200 [thread overview]
Message-ID: <aW3nV5ZwmFnLdDss@tlindgre-MOBL1> (raw)
In-Reply-To: <20260109-tdx_print_module_version-v2-1-e10e4ca5b450@intel.com>
On Fri, Jan 09, 2026 at 12:14:30PM -0700, Vishal Verma wrote:
> From: Chao Gao <chao.gao@intel.com>
>
> Each TDX module has several bits of metadata about which specific TDX
> module it is. The primary bit of info is the version, which has an x.y.z
> format. These represent the major version, minor version, and update
> version respectively. Knowing the running TDX Module version is valuable
> for bug reporting and debugging. Note that the module does expose other
> pieces of version-related metadata, such as build number and date. Those
> aren't retrieved for now, that can be added if needed in the future.
>
> Retrieve the TDX Module version using the existing metadata reading
> interface. Later changes will expose this information. The metadata
> reading interfaces have existed for quite some time, so this will work
> with older versions of the TDX module as well - i.e. this isn't a new
> interface.
This is great to have for debugging, if not too late:
Reviewed-by: Tony Lindgren <tony.lindgren@linux.intel.com>
next prev parent reply other threads:[~2026-01-19 8:12 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-09 19:14 [PATCH v2 0/2] x86/virt/tdx: Print TDX module version to dmesg Vishal Verma
2026-01-09 19:14 ` [PATCH v2 1/2] x86/virt/tdx: Retrieve TDX module version Vishal Verma
2026-01-12 2:25 ` Xiaoyao Li
2026-01-12 14:56 ` Dave Hansen
2026-01-13 2:56 ` Xu Yilun
2026-01-13 3:58 ` Xiaoyao Li
2026-01-12 8:30 ` Binbin Wu
2026-01-19 8:12 ` Tony Lindgren [this message]
2026-01-09 19:14 ` [PATCH v2 2/2] x86/virt/tdx: Print TDX module version during init Vishal Verma
2026-01-09 20:00 ` Edgecombe, Rick P
2026-01-12 2:31 ` Xiaoyao Li
2026-01-12 8:32 ` Binbin Wu
2026-01-12 11:23 ` Kiryl Shutsemau
2026-01-19 8:12 ` Tony Lindgren
2026-01-11 22:15 ` [PATCH v2 0/2] x86/virt/tdx: Print TDX module version to dmesg Huang, Kai
2026-02-05 19:05 ` Verma, Vishal L
2026-02-06 11:39 ` Kiryl Shutsemau
2026-02-06 15:10 ` Dave Hansen
2026-02-06 18:35 ` Edgecombe, Rick P
2026-02-09 10:46 ` Kiryl Shutsemau
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