From: Chao Gao <chao.gao@intel.com>
To: Dave Hansen <dave.hansen@intel.com>
Cc: <linux-coco@lists.linux.dev>, <linux-kernel@vger.kernel.org>,
<kvm@vger.kernel.org>, <x86@kernel.org>,
<reinette.chatre@intel.com>, <ira.weiny@intel.com>,
<kai.huang@intel.com>, <dan.j.williams@intel.com>,
<yilun.xu@linux.intel.com>, <sagis@google.com>,
<vannapurve@google.com>, <paulmck@kernel.org>,
<nik.borisov@suse.com>, <zhenzhong.duan@intel.com>,
<seanjc@google.com>, <rick.p.edgecombe@intel.com>,
<kas@kernel.org>, <dave.hansen@linux.intel.com>,
<vishal.l.verma@intel.com>, Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH v3 03/26] x86/virt/tdx: Move low level SEAMCALL helpers out of <asm/tdx.h>
Date: Thu, 29 Jan 2026 16:04:51 +0800 [thread overview]
Message-ID: <aXsUo5Hi52LkwJcS@intel.com> (raw)
In-Reply-To: <3e134fb9-95c0-442b-8a25-834ffd8d87f9@intel.com>
On Wed, Jan 28, 2026 at 08:37:35AM -0800, Dave Hansen wrote:
>On 1/23/26 06:55, Chao Gao wrote:
>> +++ b/arch/x86/virt/vmx/tdx/seamcall.h
>
>Moving the code to a local header is a good thing. The more private
>these things are, the better.
>
>I _do_ like when I see these things have a label in the filename like:
>
> internal.h
>
>or even:
>
> seamcall_internal.h
>
>That really catches your eye. It would also be ideal to have a small
>blurb at the top of the file to say what its scope is, just to explain
>what folks should be adding to it or not.
>
>If you get a chance to add those, all the better. But either way:
>
>Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Thanks.
I will rename it to "seamcall_internal.h" and add the following at the top:
/*
* SEAMCALL utilities for TDX host-side operations.
*
* Provides convenient wrappers around SEAMCALL assembly with retry logic,
* error reporting and cache coherency tracking.
*/
next prev parent reply other threads:[~2026-01-29 8:05 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-23 14:55 [PATCH v3 00/26] Runtime TDX Module update support Chao Gao
2026-01-23 14:55 ` [PATCH v3 01/26] x86/virt/tdx: Print SEAMCALL leaf numbers in decimal Chao Gao
2026-01-26 10:01 ` Tony Lindgren
2026-01-28 1:28 ` Binbin Wu
2026-01-28 16:26 ` Dave Hansen
2026-01-29 5:44 ` Chao Gao
2026-01-23 14:55 ` [PATCH v3 02/26] x86/virt/tdx: Use %# prefix for hex values in SEAMCALL error messages Chao Gao
2026-01-26 10:02 ` Tony Lindgren
2026-01-28 1:34 ` Binbin Wu
2026-01-28 12:16 ` Chao Gao
2026-01-28 15:18 ` Dave Hansen
2026-01-23 14:55 ` [PATCH v3 03/26] x86/virt/tdx: Move low level SEAMCALL helpers out of <asm/tdx.h> Chao Gao
2026-01-26 10:02 ` Tony Lindgren
2026-01-28 1:37 ` Binbin Wu
2026-01-28 12:42 ` Chao Gao
2026-01-28 16:31 ` Dave Hansen
2026-01-29 14:02 ` Chao Gao
2026-01-29 16:03 ` Dave Hansen
2026-01-28 16:37 ` Dave Hansen
2026-01-29 8:04 ` Chao Gao [this message]
2026-01-23 14:55 ` [PATCH v3 04/26] coco/tdx-host: Introduce a "tdx_host" device Chao Gao
2026-01-26 9:52 ` Tony Lindgren
2026-01-28 16:53 ` Dave Hansen
2026-01-28 3:24 ` Binbin Wu
2026-01-29 7:26 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 05/26] coco/tdx-host: Expose TDX Module version Chao Gao
2026-01-26 9:54 ` Tony Lindgren
2026-01-28 3:48 ` Binbin Wu
2026-01-28 17:01 ` Dave Hansen
2026-01-29 14:07 ` Chao Gao
2026-01-29 7:38 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 06/26] x86/virt/tdx: Prepare to support P-SEAMLDR SEAMCALLs Chao Gao
2026-01-26 10:05 ` Tony Lindgren
2026-01-28 5:58 ` Binbin Wu
2026-01-28 23:03 ` Dave Hansen
2026-01-29 9:46 ` Xu Yilun
2026-01-29 16:08 ` Dave Hansen
2026-01-29 14:55 ` Chao Gao
2026-01-29 16:59 ` Dave Hansen
2026-01-23 14:55 ` [PATCH v3 07/26] x86/virt/seamldr: Introduce a wrapper for " Chao Gao
2026-01-26 10:12 ` Tony Lindgren
2026-01-28 6:38 ` Binbin Wu
2026-01-28 23:04 ` Dave Hansen
2026-01-30 8:08 ` Chao Gao
2026-01-30 16:23 ` Dave Hansen
2026-01-28 23:36 ` Dave Hansen
2026-01-30 13:21 ` Chao Gao
2026-01-30 16:18 ` Dave Hansen
2026-02-03 12:15 ` Chao Gao
2026-02-03 15:41 ` Sean Christopherson
2026-02-03 16:12 ` Dave Hansen
2026-02-03 23:54 ` Chao Gao
2026-02-05 16:29 ` Sean Christopherson
2026-02-05 16:37 ` Dave Hansen
2026-01-23 14:55 ` [PATCH v3 08/26] x86/virt/seamldr: Retrieve P-SEAMLDR information Chao Gao
2026-01-26 10:15 ` Tony Lindgren
2026-01-28 6:50 ` Binbin Wu
2026-01-28 23:54 ` Dave Hansen
2026-01-30 4:01 ` Xu Yilun
2026-01-30 16:35 ` Dave Hansen
2026-02-02 0:16 ` Xu Yilun
2026-01-30 13:55 ` Chao Gao
2026-01-30 16:06 ` Dave Hansen
2026-01-28 23:57 ` Dave Hansen
2026-01-30 13:30 ` Chao Gao
2026-01-23 14:55 ` [PATCH v3 09/26] coco/tdx-host: Expose P-SEAMLDR information via sysfs Chao Gao
2026-01-26 9:56 ` Tony Lindgren
2026-01-28 3:07 ` Huang, Kai
2026-01-29 0:08 ` Dave Hansen
2026-01-30 14:44 ` Chao Gao
2026-01-30 16:02 ` Dave Hansen
2026-01-23 14:55 ` [PATCH v3 10/26] coco/tdx-host: Implement FW_UPLOAD sysfs ABI for TDX Module updates Chao Gao
2026-01-26 10:00 ` Tony Lindgren
2026-01-28 3:30 ` Huang, Kai
2026-01-30 14:07 ` Xu Yilun
2026-02-06 17:15 ` Xing, Cedric
2026-01-23 14:55 ` [PATCH v3 11/26] x86/virt/seamldr: Block TDX Module updates if any CPU is offline Chao Gao
2026-01-26 10:16 ` Tony Lindgren
2026-02-02 0:31 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 12/26] x86/virt/seamldr: Verify availability of slots for TDX Module updates Chao Gao
2026-01-26 10:17 ` Tony Lindgren
2026-01-23 14:55 ` [PATCH v3 13/26] x86/virt/seamldr: Allocate and populate a module update request Chao Gao
2026-01-26 10:23 ` Tony Lindgren
2026-01-27 3:21 ` Huang, Kai
2026-01-28 11:28 ` Chao Gao
2026-01-28 22:33 ` Huang, Kai
2026-01-28 4:03 ` Huang, Kai
2026-01-30 14:56 ` Chao Gao
2026-02-02 3:08 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 14/26] x86/virt/seamldr: Introduce skeleton for TDX Module updates Chao Gao
2026-01-26 10:28 ` Tony Lindgren
2026-02-02 6:01 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 15/26] x86/virt/seamldr: Abort updates if errors occurred midway Chao Gao
2026-01-26 10:31 ` Tony Lindgren
2026-02-02 6:08 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 16/26] x86/virt/seamldr: Shut down the current TDX module Chao Gao
2026-01-26 10:42 ` Tony Lindgren
2026-02-02 6:31 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 17/26] x86/virt/tdx: Reset software states after TDX module shutdown Chao Gao
2026-01-26 10:43 ` Tony Lindgren
2026-01-23 14:55 ` [PATCH v3 18/26] x86/virt/seamldr: Log TDX Module update failures Chao Gao
2026-01-26 10:45 ` Tony Lindgren
2026-02-02 7:11 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 19/26] x86/virt/seamldr: Install a new TDX Module Chao Gao
2026-01-26 10:52 ` Tony Lindgren
2026-01-23 14:55 ` [PATCH v3 20/26] x86/virt/seamldr: Do TDX per-CPU initialization after updates Chao Gao
2026-01-26 10:53 ` Tony Lindgren
2026-02-02 7:32 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 21/26] x86/virt/tdx: Establish contexts for the new TDX Module Chao Gao
2026-01-26 10:54 ` Tony Lindgren
2026-01-23 14:55 ` [PATCH v3 22/26] x86/virt/tdx: Update tdx_sysinfo and check features post-update Chao Gao
2026-01-26 11:07 ` Tony Lindgren
2026-02-02 7:33 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 23/26] x86/virt/tdx: Enable TDX Module runtime updates Chao Gao
2026-01-26 11:14 ` Tony Lindgren
2026-02-04 10:03 ` Tony Lindgren
2026-02-02 7:41 ` Xu Yilun
2026-01-23 14:55 ` [PATCH v3 24/26] x86/virt/seamldr: Extend sigstruct to 16KB Chao Gao
2026-01-26 11:15 ` Tony Lindgren
2026-01-27 3:58 ` Huang, Kai
2026-01-28 23:01 ` Huang, Kai
2026-01-30 14:25 ` Chao Gao
2026-02-02 11:57 ` Huang, Kai
2026-01-23 14:55 ` [PATCH v3 25/26] x86/virt/tdx: Avoid updates during update-sensitive operations Chao Gao
2026-01-26 11:23 ` Tony Lindgren
2026-01-23 14:55 ` [PATCH v3 26/26] coco/tdx-host: Set and document TDX Module update expectations Chao Gao
2026-01-26 11:28 ` Tony Lindgren
2026-01-26 22:14 ` dan.j.williams
2026-01-27 12:17 ` Chao Gao
2026-01-27 17:23 ` dan.j.williams
2026-01-28 17:52 ` [PATCH v3 00/26] Runtime TDX Module update support Sagi Shahar
2026-01-29 1:51 ` Chao Gao
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