From: Dave Hansen <dave.hansen@intel.com>
To: Chao Gao <chao.gao@intel.com>,
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 07/22] coco/tdx-host: Implement firmware upload sysfs ABI for TDX module updates
Date: Tue, 31 Mar 2026 08:11:22 -0700 [thread overview]
Message-ID: <01fc8946-eb84-46fa-9458-f345dd3f6033@intel.com> (raw)
In-Reply-To: <20260331124214.117808-8-chao.gao@intel.com>
On 3/31/26 05:41, Chao Gao wrote:
> +static enum fw_upload_err tdx_fw_poll_complete(struct fw_upload *fwl)
> +{
> + /*
> + * TDX module updates are completed in the previous phase
> + * (tdx_fw_write()). If any error occurred, the previous phase
> + * would return an error code to abort the update process. In
> + * other words, reaching this point means the update succeeded.
> + */
> + return FW_UPLOAD_ERR_NONE;
> +}
> +
This will be the seventh 'fw_upload_ops' and the third that has this
pattern of not needing a ->poll_complete() implementation. It seems like
allowing a NULL ->poll_complete or having a common stub for this pattern
would be worthwhile.
I also don't think you need to be that verbose. This would be fine:
/*
* The upload completed during tdx_fw_write().
* Never poll for completion.
*/
next prev parent reply other threads:[~2026-03-31 15:11 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 [this message]
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
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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