From: "Edgecombe, Rick P" <rick.p.edgecombe@intel.com>
To: "jirislaby@kernel.org" <jirislaby@kernel.org>,
"seanjc@google.com" <seanjc@google.com>
Cc: "Gao, Chao" <chao.gao@intel.com>, "bp@alien8.de" <bp@alien8.de>,
"kas@kernel.org" <kas@kernel.org>,
"dave.hansen@linux.intel.com" <dave.hansen@linux.intel.com>,
"mingo@redhat.com" <mingo@redhat.com>,
"dan.j.williams@intel.com" <dan.j.williams@intel.com>,
"x86@kernel.org" <x86@kernel.org>,
"tglx@kernel.org" <tglx@kernel.org>,
"linux-coco@lists.linux.dev" <linux-coco@lists.linux.dev>,
"hpa@zytor.com" <hpa@zytor.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>
Subject: Re: [PATCH v2] KVM: x86/tdx: Do not print error message on non-present feature
Date: Wed, 29 Jul 2026 13:34:03 +0000 [thread overview]
Message-ID: <dd7ddd6485b9501eaeb83b27441d0c187a6fd267.camel@intel.com> (raw)
In-Reply-To: <20260729085908.21368-1-jirislaby@kernel.org>
On Wed, 2026-07-29 at 10:59 +0200, Jiri Slaby (SUSE) wrote:
> Before commit 165e77353831 below, the kernel did not print anything
> during boot if X86_FEATURE_TDX_HOST_PLATFORM was not present, unless TDX
> enablement was explicitly requested via a module parameter.
>
> After the commit, when attempting to load TDX automatically, this is
> emitted to the log:
> virt/tdx: TDX not supported by the host platform
>
> It is emitted with the "error" level, hence it is disturbing. It is not
> an error to run CPUs without the feature.
>
> Drop this silent-boot-breaking error message for the automatic
> initialization path.
>
> Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
> Fixes: 165e77353831 ("KVM: x86/tdx: Do VMXON and TDX-Module initialization
> during subsys init")
> Reviewed-by: Kiryl Shutsemau (Meta) <kas@kernel.org>
> Cc: Dan Williams <dan.j.williams@intel.com>
> Cc: Chao Gao <chao.gao@intel.com>
> Cc: Dave Hansen <dave.hansen@linux.intel.com>
> Cc: Sean Christopherson <seanjc@google.com>
>
> ---
Thanks for the log changes.
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
prev parent reply other threads:[~2026-07-29 13:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-29 8:59 [PATCH v2] KVM: x86/tdx: Do not print error message on non-present feature Jiri Slaby (SUSE)
2026-07-29 13:28 ` Sean Christopherson
2026-07-29 13:34 ` Edgecombe, Rick P [this message]
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