From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from sender4-of-o50.zoho.com (sender4-of-o50.zoho.com [136.143.188.50]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 348772F85B; Thu, 8 Jan 2026 16:22:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.188.50 ARC-Seal:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767889375; cv=pass; b=ufus9ogG5DwBsBoOFlxyEoxzgi5CXTp+OuzdZ5w/yuT1kdsA6kPRCC8p4+qsz/ErYwC3oqIAvTClh5RWD0WlCFx47kjkxaQTvGIlp2E4ZJBJ5u3brg0876PtfTK8hMGUTdLKvYvAj0Hb32kbQMYS4NIuYx2qHdrtwKasj14k18U= ARC-Message-Signature:i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1767889375; c=relaxed/simple; bh=+zUpWzhBo4C4q4QtCguT1lWr97eOh1cfKA9jqI4g5Ug=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=bsCQTwT4/K861wxWK1FsA9HsXjM7tEayLT2L9RdYcCBR0sqyN4xfP3cvHbFsWEh3rQKUxfYeSF83kTZ++6B5drvrCcQjkqXkqfsO5DwRQx/cV9lxFG6nou45VzTPHl914XTHdatCYdGhB4Je8jprpB9SRY08r+faYiDXydLDxcQ= ARC-Authentication-Results:i=2; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=apertussolutions.com; spf=pass smtp.mailfrom=apertussolutions.com; dkim=pass (1024-bit key) header.d=apertussolutions.com header.i=dpsmith@apertussolutions.com header.b=dlxv/K6Z; arc=pass smtp.client-ip=136.143.188.50 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=apertussolutions.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=apertussolutions.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=apertussolutions.com header.i=dpsmith@apertussolutions.com header.b="dlxv/K6Z" ARC-Seal: i=1; a=rsa-sha256; t=1767889297; cv=none; d=zohomail.com; s=zohoarc; b=IXM3IwQSRjpf/AjEz0IjjgNpQjKhbp5nQ8u43T/PE0S2VoEpHrCn41jycdM712iwf9SCmkXoHzMIahruw+OiMdoiMDU65J49RY54wL/zZJJwPKVDBCcDoveqL4CBjR4yE9wL/S0hCXYHl4a3+rJ6q4JdT07ezzAMed44GQyD5w0= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1767889297; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=oqv29i/Jkyku4YGsPHEwXi5y4vCYAIfyZbGbk20cx3Q=; b=V4u9qhFfLwuC/8Ag3Sr7TEjepvSGOCV/0ZLCktSz/x6xG7OdamVnnr7uXXtZ8K05UG6IkM2ElQmmVgs2MgnTSYFX8utd266JxvnAhmeeOd5+bfetzHyFAJxsbX51kZa008dUmX9puWqIpF2mcE2Ew2pQNnqeiiGZ8FHA5+0eop4= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=apertussolutions.com; spf=pass smtp.mailfrom=dpsmith@apertussolutions.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1767889297; s=zoho; d=apertussolutions.com; i=dpsmith@apertussolutions.com; h=Message-ID:Date:Date:MIME-Version:Subject:Subject:To:To:Cc:Cc:References:From:From:In-Reply-To:Content-Type:Content-Transfer-Encoding:Message-Id:Reply-To; bh=oqv29i/Jkyku4YGsPHEwXi5y4vCYAIfyZbGbk20cx3Q=; b=dlxv/K6ZtChdyvl/fMxeMprD8qzLhwyyhoGEar4fSoaloeGwKaCIeVO/F2y/Q5Ka T744G8PcyfblQWZlsHFeICcqT+L/mnCRbA9zEbnGSZ4EGhtqWDeoxqlA7dmfI0TpyXU 7GSm0GZP1/k+gmQmJ7byGqtM0ntYyCd6Cup03B7E= Received: by mx.zohomail.com with SMTPS id 1767889293888361.3114789025136; Thu, 8 Jan 2026 08:21:33 -0800 (PST) Message-ID: Date: Thu, 8 Jan 2026 11:21:31 -0500 Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v15 19/28] x86/tpm: Early TPM PCR extending driver Content-Language: en-US To: Dave Hansen , Ross Philipson , linux-kernel@vger.kernel.org, x86@kernel.org, linux-integrity@vger.kernel.org, linux-doc@vger.kernel.org, linux-crypto@vger.kernel.org, kexec@lists.infradead.org, linux-efi@vger.kernel.org, iommu@lists.linux.dev Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, dave.hansen@linux.intel.com, ardb@kernel.org, mjg59@srcf.ucam.org, James.Bottomley@hansenpartnership.com, peterhuewe@gmx.de, jarkko@kernel.org, jgg@ziepe.ca, luto@amacapital.net, nivedita@alum.mit.edu, herbert@gondor.apana.org.au, davem@davemloft.net, corbet@lwn.net, ebiederm@xmission.com, dwmw2@infradead.org, baolu.lu@linux.intel.com, kanth.ghatraju@oracle.com, andrew.cooper3@citrix.com, trenchboot-devel@googlegroups.com References: <20251215233316.1076248-1-ross.philipson@oracle.com> <20251215233316.1076248-20-ross.philipson@oracle.com> <56929e8b-a7cf-4390-b4ec-0b4c2c32b311@intel.com> <62227ed3-3804-4795-93c9-ce2bbad3f2a7@apertussolutions.com> From: "Daniel P. Smith" Autocrypt: addr=dpsmith@apertussolutions.com; keydata= xsJuBFYrueARCACPWL3r2bCSI6TrkIE/aRzj4ksFYPzLkJbWLZGBRlv7HQLvs6i/K4y/b4fs JDq5eL4e9BdfdnZm/b+K+Gweyc0Px2poDWwKVTFFRgxKWq9R7McwNnvuZ4nyXJBVn7PTEn/Z G7D08iZg94ZsnUdeXfgYdJrqmdiWA6iX9u84ARHUtb0K4r5WpLUMcQ8PVmnv1vVrs/3Wy/Rb foxebZNWxgUiSx+d02e3Ad0aEIur1SYXXv71mqKwyi/40CBSHq2jk9eF6zmEhaoFi5+MMMgX X0i+fcBkvmT0N88W4yCtHhHQds+RDbTPLGm8NBVJb7R5zbJmuQX7ADBVuNYIU8hx3dF3AQCm 601w0oZJ0jGOV1vXQgHqZYJGHg5wuImhzhZJCRESIwf+PJxik7TJOgBicko1hUVOxJBZxoe0 x+/SO6tn+s8wKlR1Yxy8gYN9ZRqV2I83JsWZbBXMG1kLzV0SAfk/wq0PAppA1VzrQ3JqXg7T MZ3tFgxvxkYqUP11tO2vrgys+InkZAfjBVMjqXWHokyQPpihUaW0a8mr40w9Qui6DoJj7+Gg DtDWDZ7Zcn2hoyrypuht88rUuh1JuGYD434Q6qwQjUDlY+4lgrUxKdMD8R7JJWt38MNlTWvy rMVscvZUNc7gxcmnFUn41NPSKqzp4DDRbmf37Iz/fL7i01y7IGFTXaYaF3nEACyIUTr/xxi+ MD1FVtEtJncZNkRn7WBcVFGKMAf+NEeaeQdGYQ6mGgk++i/vJZxkrC/a9ZXme7BhWRP485U5 sXpFoGjdpMn4VlC7TFk2qsnJi3yF0pXCKVRy1ukEls8o+4PF2JiKrtkCrWCimB6jxGPIG3lk 3SuKVS/din3RHz+7Sr1lXWFcGYDENmPd/jTwr1A1FiHrSj+u21hnJEHi8eTa9029F1KRfocp ig+k0zUEKmFPDabpanI323O5Tahsy7hwf2WOQwTDLvQ+eqQu40wbb6NocmCNFjtRhNZWGKJS b5GrGDGu/No5U6w73adighEuNcCSNBsLyUe48CE0uTO7eAL6Vd+2k28ezi6XY4Y0mgASJslb NwW54LzSSM0uRGFuaWVsIFAuIFNtaXRoIDxkcHNtaXRoQGFwZXJ0dXNzb2x1dGlvbnMuY29t PsJ6BBMRCAAiBQJWK7ngAhsjBgsJCAcDAgYVCAIJCgsEFgIDAQIeAQIXgAAKCRBTc6WbYpR8 KrQ9AP94+xjtFfJ8gj5c7PVx06Zv9rcmFUqQspZ5wSEkvxOuQQEAg6qEsPYegI7iByLVzNEg 7B7fUG7pqWIfMqFwFghYhQzOwU0EViu54BAIAL6MXXNlrJ5tRUf+KMBtVz1LJQZRt/uxWrCb T06nZjnbp2UcceuYNbISOVHGXTzu38r55YzpkEA8eURQf+5hjtvlrOiHxvpD+Z6WcpV6rrMB kcAKWiZTQihW2HoGgVB3gwG9dCh+n0X5OzliAMiGK2a5iqnIZi3o0SeW6aME94bSkTkuj6/7 OmH9KAzK8UnlhfkoMg3tXW8L6/5CGn2VyrjbB/rcrbIR4mCQ+yCUlocuOjFCJhBd10AG1IcX OXUa/ux+/OAV9S5mkr5Fh3kQxYCTcTRt8RY7+of9RGBk10txi94dXiU2SjPbassvagvu/hEi twNHms8rpkSJIeeq0/cAAwUH/jV3tXpaYubwcL2tkk5ggL9Do+/Yo2WPzXmbp8vDiJPCvSJW rz2NrYkd/RoX+42DGqjfu8Y04F9XehN1zZAFmCDUqBMa4tEJ7kOT1FKJTqzNVcgeKNBGcT7q 27+wsqbAerM4A0X/F/ctjYcKwNtXck1Bmd/T8kiw2IgyeOC+cjyTOSwKJr2gCwZXGi5g+2V8 NhJ8n72ISPnOh5KCMoAJXmCF+SYaJ6hIIFARmnuessCIGw4ylCRIU/TiXK94soilx5aCqb1z ke943EIUts9CmFAHt8cNPYOPRd20pPu4VFNBuT4fv9Ys0iv0XGCEP+sos7/pgJ3gV3pCOric p15jV4PCYQQYEQgACQUCViu54AIbDAAKCRBTc6WbYpR8Khu7AP9NJrBUn94C/3PeNbtQlEGZ NV46Mx5HF0P27lH3sFpNrwD/dVdZ5PCnHQYBZ287ZxVfVr4Zuxjo5yJbRjT93Hl0vMY= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ZohoMailClient: External On 1/3/26 15:44, Dave Hansen wrote: > On 12/19/25 13:26, Daniel P. Smith wrote: > ... >>> I also seem to remember that there are special rules around the US >>> federal government's inability to hold copyrights. This seems worth at >>> least a mention ... somewhere. >> >> IANAL either, but in general the safest/correct approach is to retain >> any CRs placed on the code being reused, and the above is the CR on the >> source from the Xen tree. > > Yeah, in general, that's a good thing to do. > > But I'm puzzled by your response. Are you making an attempt to justify > the past choice to copy the copyrights verbatim? Or are you declining to > follow my request to involve your companies' legal experts given that > you used the "safest/correct approach"? My apologies that it came across like I was rebuffing your request. I was just trying to inform as to why it was there. Yes, we are working to determine the answer to your concern and what should be the correct course of action. > FWIW, I don't think what you did was bad here. You _did_ use a quite > reasonable approach in the case that a copyright was copied verbatim > from an existing legitimate* project. > > * I'll give Xen the benefit of the doubt just this one time and put it > in the "legitimate" bucket. :P As a Xen contributor/maintainer, thanks ... I think. (^_^) V/r, dps