From: "Huang, Kai" <kai.huang@intel.com>
To: "Williams, Dan J" <dan.j.williams@intel.com>,
"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
"linux-coco@lists.linux.dev" <linux-coco@lists.linux.dev>,
"yilun.xu@linux.intel.com" <yilun.xu@linux.intel.com>,
"x86@kernel.org" <x86@kernel.org>
Cc: "Gao, Chao" <chao.gao@intel.com>,
"Edgecombe, Rick P" <rick.p.edgecombe@intel.com>,
"Xu, Yilun" <yilun.xu@intel.com>,
"Jiang, Dave" <dave.jiang@intel.com>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"baolu.lu@linux.intel.com" <baolu.lu@linux.intel.com>,
"Duan, Zhenzhong" <zhenzhong.duan@intel.com>,
"kas@kernel.org" <kas@kernel.org>,
"Verma, Vishal L" <vishal.l.verma@intel.com>,
"Li, Xiaoyao" <xiaoyao.li@intel.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 06/31] x86/virt/tdx: Read global metadata for TDX Module Extensions/Connect
Date: Wed, 1 Apr 2026 21:36:18 +0000 [thread overview]
Message-ID: <123290f2bd1fb9c98bf494650c5912a3bf080114.camel@intel.com> (raw)
In-Reply-To: <20260327160132.2946114-7-yilun.xu@linux.intel.com>
On Sat, 2026-03-28 at 00:01 +0800, Xu Yilun wrote:
> Add reading of the global metadata for TDX Module Extensions & TDX
> Connect. Add them in a batch as TDX Connect is currently the only user
> of TDX Module Extensions and no way to initialize TDX Module Extensions
> without firstly enabling TDX Connect.
>
> TDX Module Extensions & TDX Connect are optional features enumerated by
> TDX_FEATURES0. Check the TDX_FEATURES0 before reading these metadata to
> avoid failing the whole TDX initialization.
Maybe it's better to split this patch into two, one to read generic "TDX
Module Extension" related global metadata, and the other to read TDX Connect
specific ones?
They are logically two separate things anyway. And there are other features
also need to enable TDX Module Extensions (e.g., NRX for migration), and we
can just reuse the generic metadata patch from this series.
next prev parent reply other threads:[~2026-04-01 21:36 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-27 16:01 [PATCH v2 00/31] PCI/TSM: PCIe Link Encryption Establishment via TDX platform services Xu Yilun
2026-03-27 16:01 ` [PATCH v2 01/31] x86/tdx: Move all TDX error defines into <asm/shared/tdx_errno.h> Xu Yilun
2026-03-27 23:37 ` Edgecombe, Rick P
2026-03-28 1:16 ` Dan Williams
2026-03-30 7:07 ` Xu Yilun
2026-03-30 7:10 ` Xu Yilun
2026-03-31 0:01 ` Dave Hansen
2026-03-27 16:01 ` [PATCH v2 02/31] x86/virt/tdx: Move bit definitions of TDX_FEATURES0 to public header Xu Yilun
2026-03-27 23:45 ` Edgecombe, Rick P
2026-03-30 8:07 ` Xu Yilun
2026-03-27 16:01 ` [PATCH v2 03/31] x86/virt/tdx: Add tdx_page_array helpers for new TDX Module objects Xu Yilun
2026-03-28 1:35 ` Edgecombe, Rick P
2026-03-30 10:25 ` Xu Yilun
2026-03-30 23:25 ` Edgecombe, Rick P
2026-03-31 6:25 ` Tony Lindgren
2026-04-01 7:25 ` Tony Lindgren
2026-03-30 15:47 ` Xu Yilun
2026-03-30 23:57 ` Edgecombe, Rick P
2026-03-31 10:11 ` Xu Yilun
2026-03-30 13:31 ` Nikolay Borisov
2026-03-31 13:31 ` Xu Yilun
2026-03-27 16:01 ` [PATCH v2 04/31] x86/virt/tdx: Support allocating contiguous pages for tdx_page_array Xu Yilun
2026-03-30 13:48 ` Nikolay Borisov
2026-03-31 13:37 ` Xu Yilun
2026-03-27 16:01 ` [PATCH v2 05/31] x86/virt/tdx: Extend tdx_page_array to support IOMMU_MT Xu Yilun
2026-03-30 23:54 ` Edgecombe, Rick P
2026-03-31 14:19 ` Xu Yilun
2026-04-01 0:17 ` Edgecombe, Rick P
2026-04-02 0:05 ` Huang, Kai
2026-03-27 16:01 ` [PATCH v2 06/31] x86/virt/tdx: Read global metadata for TDX Module Extensions/Connect Xu Yilun
2026-03-30 14:23 ` Nikolay Borisov
2026-03-31 14:23 ` Xu Yilun
2026-04-01 21:36 ` Huang, Kai [this message]
2026-03-27 16:01 ` [PATCH v2 07/31] x86/virt/tdx: Embed version info in SEAMCALL leaf function definitions Xu Yilun
2026-03-27 16:01 ` [PATCH v2 08/31] x86/virt/tdx: Configure TDX Module with optional TDX Connect feature Xu Yilun
2026-03-31 10:38 ` Nikolay Borisov
2026-04-01 10:13 ` Huang, Kai
2026-04-01 23:42 ` Huang, Kai
2026-04-01 23:53 ` Edgecombe, Rick P
2026-04-02 0:40 ` Huang, Kai
2026-04-02 0:48 ` Dave Hansen
2026-04-02 1:06 ` Huang, Kai
2026-03-27 16:01 ` [PATCH v2 09/31] x86/virt/tdx: Move tdx_clflush_page() up in the file Xu Yilun
2026-03-27 16:01 ` [PATCH v2 10/31] x86/virt/tdx: Add extra memory to TDX Module for Extensions Xu Yilun
2026-03-30 23:36 ` Edgecombe, Rick P
2026-03-31 11:00 ` Nikolay Borisov
2026-03-27 16:01 ` [PATCH v2 11/31] x86/virt/tdx: Make TDX Module initialize Extensions Xu Yilun
2026-03-30 23:25 ` Edgecombe, Rick P
2026-03-31 14:58 ` Xu Yilun
2026-04-01 11:42 ` Huang, Kai
2026-03-27 16:01 ` [PATCH v2 12/31] x86/virt/tdx: Enable the Extensions after basic TDX Module init Xu Yilun
2026-03-27 16:01 ` [PATCH v2 13/31] x86/virt/tdx: Extend tdx_clflush_page() to handle compound pages Xu Yilun
2026-03-27 16:01 ` [PATCH v2 14/31] PCI/TSM: Report active IDE streams per host bridge Xu Yilun
2026-03-27 16:01 ` [PATCH v2 15/31] coco/tdx-host: Introduce a "tdx_host" device Xu Yilun
2026-03-27 16:01 ` [PATCH v2 16/31] coco/tdx-host: Support Link TSM for TDX host Xu Yilun
2026-03-27 16:01 ` [PATCH v2 17/31] acpi: Add KEYP support to fw_table parsing Xu Yilun
2026-03-27 16:01 ` [PATCH v2 18/31] iommu/vt-d: Cache max domain ID to avoid redundant calculation Xu Yilun
2026-03-27 16:01 ` [PATCH v2 19/31] iommu/vt-d: Reserve the MSB domain ID bit for the TDX module Xu Yilun
2026-03-28 16:57 ` kernel test robot
2026-03-31 7:20 ` Baolu Lu
2026-03-28 19:58 ` kernel test robot
2026-03-27 16:01 ` [PATCH v2 20/31] x86/virt/tdx: Add a helper to loop on TDX_INTERRUPTED_RESUMABLE Xu Yilun
2026-03-27 16:01 ` [PATCH v2 21/31] x86/virt/tdx: Add SEAMCALL wrappers for trusted IOMMU setup and clear Xu Yilun
2026-03-27 16:01 ` [PATCH v2 22/31] iommu/vt-d: Export a helper to do function for each dmar_drhd_unit Xu Yilun
2026-03-27 16:01 ` [PATCH v2 23/31] coco/tdx-host: Setup all trusted IOMMUs on TDX Connect init Xu Yilun
2026-03-27 16:01 ` [PATCH v2 24/31] coco/tdx-host: Add a helper to exchange SPDM messages through DOE Xu Yilun
2026-03-27 16:01 ` [PATCH v2 25/31] x86/virt/tdx: Add SEAMCALL wrappers for SPDM management Xu Yilun
2026-03-27 16:01 ` [PATCH v2 26/31] mm: Add __free() support for __free_page() Xu Yilun
2026-03-27 16:01 ` [PATCH v2 27/31] coco/tdx-host: Implement SPDM session setup Xu Yilun
2026-04-02 11:29 ` Nikolay Borisov
2026-03-27 16:01 ` [PATCH v2 28/31] coco/tdx-host: Parse ACPI KEYP table to init IDE for PCI host bridges Xu Yilun
2026-03-27 16:01 ` [PATCH v2 29/31] x86/virt/tdx: Add SEAMCALL wrappers for IDE stream management Xu Yilun
2026-03-27 16:01 ` [PATCH v2 30/31] coco/tdx-host: Implement IDE stream setup/teardown Xu Yilun
2026-03-27 16:01 ` [PATCH v2 31/31] coco/tdx-host: Finally enable SPDM session and IDE Establishment Xu Yilun
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