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From: Chao Gao <chao.gao@intel.com>
To: <linux-kernel@vger.kernel.org>, <linux-coco@lists.linux.dev>,
	<kvm@vger.kernel.org>
Cc: <binbin.wu@linux.intel.com>, <dan.j.williams@intel.com>,
	<dave.hansen@linux.intel.com>, <ira.weiny@intel.com>,
	<kai.huang@intel.com>, <kas@kernel.org>, <nik.borisov@suse.com>,
	<paulmck@kernel.org>, <pbonzini@redhat.com>,
	<reinette.chatre@intel.com>, <rick.p.edgecombe@intel.com>,
	<sagis@google.com>, <seanjc@google.com>,
	<tony.lindgren@linux.intel.com>, <vannapurve@google.com>,
	<vishal.l.verma@intel.com>, <yilun.xu@linux.intel.com>,
	<xiaoyao.li@intel.com>, <yan.y.zhao@intel.com>,
	Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
	Borislav Petkov <bp@alien8.de>, <x86@kernel.org>,
	"H. Peter Anvin" <hpa@zytor.com>
Subject: Re: [PATCH v7 11/22] x86/virt/seamldr: Shut down the current TDX module
Date: Tue, 7 Apr 2026 19:51:09 +0800	[thread overview]
Message-ID: <adTvrRcvI2rejKc1@intel.com> (raw)
In-Reply-To: <20260331124214.117808-12-chao.gao@intel.com>

>+int tdx_module_shutdown(void)
>+{
>+	struct tdx_module_args args = {};
>+
>+	/*
>+	 * Shut down the TDX module and prepare handoff data for the next
>+	 * TDX module. This SEAMCALL requires a handoff version. Use the
>+	 * module's handoff version, as it is the highest version the
>+	 * module can produce and is more likely to be supported by new
>+	 * modules as new modules likely have higher handoff version.
>+	 */

Will change this comment to:
	/*
	 * Use the module's handoff version as it is the highest the
	 * module can produce and most likely supported by newer modules.
	 */

>+	args.rcx = tdx_sysinfo.handoff.module_hv;
>+	return seamcall_prerr(TDH_SYS_SHUTDOWN, &args);
>+}

  reply	other threads:[~2026-04-07 11:51 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-31 12:41 [PATCH v7 00/22] Runtime TDX module update support Chao Gao
2026-03-31 12:41 ` [PATCH v7 01/22] x86/virt/tdx: Move low level SEAMCALL helpers out of <asm/tdx.h> Chao Gao
2026-03-31 12:41 ` [PATCH v7 02/22] coco/tdx-host: Introduce a "tdx_host" device Chao Gao
2026-03-31 12:41 ` [PATCH v7 03/22] coco/tdx-host: Expose TDX module version Chao Gao
2026-03-31 12:41 ` [PATCH v7 04/22] x86/virt/seamldr: Introduce a wrapper for P-SEAMLDR SEAMCALLs Chao Gao
2026-03-31 12:41 ` [PATCH v7 05/22] x86/virt/seamldr: Add a helper to retrieve P-SEAMLDR information Chao Gao
2026-03-31 12:41 ` [PATCH v7 06/22] coco/tdx-host: Expose P-SEAMLDR information via sysfs Chao Gao
2026-03-31 14:58   ` Dave Hansen
2026-04-01  1:57     ` Chao Gao
2026-03-31 14:58   ` Dave Hansen
2026-04-01  2:25     ` Chao Gao
2026-03-31 12:41 ` [PATCH v7 07/22] coco/tdx-host: Implement firmware upload sysfs ABI for TDX module updates Chao Gao
2026-03-31 15:04   ` Dave Hansen
2026-04-01  3:10     ` Chao Gao
2026-03-31 15:11   ` Dave Hansen
2026-04-01  7:49     ` Chao Gao
2026-03-31 12:41 ` [PATCH v7 08/22] x86/virt/seamldr: Allocate and populate a module update request Chao Gao
2026-03-31 15:44   ` Dave Hansen
2026-04-01  8:27     ` Chao Gao
2026-03-31 12:41 ` [PATCH v7 09/22] x86/virt/seamldr: Introduce skeleton for TDX module updates Chao Gao
2026-04-07 11:49   ` Chao Gao
2026-04-07 15:55     ` Dave Hansen
2026-03-31 12:41 ` [PATCH v7 10/22] x86/virt/seamldr: Abort updates if errors occurred midway Chao Gao
2026-03-31 12:41 ` [PATCH v7 11/22] x86/virt/seamldr: Shut down the current TDX module Chao Gao
2026-04-07 11:51   ` Chao Gao [this message]
2026-03-31 12:41 ` [PATCH v7 12/22] x86/virt/tdx: Reset software states during TDX module shutdown Chao Gao
2026-04-07 12:02   ` Chao Gao
2026-03-31 12:41 ` [PATCH v7 13/22] x86/virt/seamldr: Install a new TDX module Chao Gao
2026-03-31 12:41 ` [PATCH v7 14/22] x86/virt/seamldr: Do TDX per-CPU initialization after updates Chao Gao
2026-03-31 12:41 ` [PATCH v7 15/22] x86/virt/tdx: Restore TDX module state Chao Gao
2026-04-07 12:07   ` Chao Gao
2026-03-31 12:41 ` [PATCH v7 16/22] x86/virt/tdx: Update tdx_sysinfo and check features post-update Chao Gao
2026-04-07 12:15   ` Chao Gao
2026-04-07 15:53     ` Dave Hansen
2026-03-31 12:41 ` [PATCH v7 17/22] x86/virt/tdx: Avoid updates during update-sensitive operations Chao Gao
2026-04-06 22:29   ` Sean Christopherson
2026-03-31 12:41 ` [PATCH v7 18/22] coco/tdx-host: Don't expose P-SEAMLDR features on CPUs with erratum Chao Gao
2026-03-31 12:41 ` [PATCH v7 19/22] x86/virt/tdx: Enable TDX module runtime updates Chao Gao
2026-03-31 12:41 ` [PATCH v7 20/22] coco/tdx-host: Document TDX module update compatibility criteria Chao Gao
2026-03-31 12:41 ` [PATCH v7 21/22] x86/virt/tdx: Document TDX module update Chao Gao
2026-03-31 12:41 ` [PATCH v7 22/22] x86/virt/seamldr: Log TDX module update failures Chao Gao

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