From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 90CD4CC6B03 for ; Tue, 13 Oct 2026 08:42:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To: Content-Transfer-Encoding:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=xh2RuTCpYl2KVhPa0ImjxCYVt4KjsZeFKDT0mY3GZ20=; b=LGojwbFINCHhdJlEmKmrmoqeAv KzvjHBKrDq1VIIS2oyuagdfDkruVcyNyQvybGGPac7ZEwrrlr8vvIDRtf7X9rsP1L1hSrZjm+lSVW Ph4ilKlV3G1uQwKxk8TDtvWHtlbGicuZpBBLC0xTUxsB2qNFW5wzBZS8mijDNIKDxtt6gIaEO8yIG S7ddcqmufZNEu8Qksb13kSSqyzID1yqyOhEJofERjM9813i+e+S2q88epZbjU/a7KRLF+USpZ7Nwx NkA2F3EhUJ0A87rRJnA6u4IzuDlsCgAZa3VJrDdUrhHq1Q9DQlHCjpsAQPXUAstYqVDKJm+vUi1la f8gv5t4w==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xGY5C-0000000CM9J-2X27; Tue, 13 Oct 2026 08:42:02 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xGY59-0000000CM7W-20hU for linux-arm-kernel@lists.infradead.org; Tue, 13 Oct 2026 08:42:01 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6FDCC169C; Tue, 13 Oct 2026 01:41:52 -0700 (PDT) Received: from e129823.arm.com (e129823.arm.com [10.2.213.3]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 702B53F66F; Tue, 13 Oct 2026 01:41:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1791880915; bh=NI8CmL/lnRoC7aE++YpF7fiq+bAGnCCUDMqbYkmDDew=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=bZqkt7LfHhgrP+LpLkfSWkgVJSZiTZFy4lKziZu5iR37k9EFAy02+ty8P4ISH7oZJ KekFmta7QOPeZeaIU4GpQdPFpSIaN4Jm43CjCrlwnAe9zBdYufWXPGSmiCV/ITKyn4 5OZk62xDJBVPfh1/7axdbnw2G3tJM7jWkrMYzZEU= Date: Tue, 13 Oct 2026 09:41:49 +0100 From: Yeoreum Yun To: GONG Ruiqi Cc: Yeoreum Yun , Roberto Sassu , linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Eric Snowberg , linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, Dan Williams , Mimi Zohar , Roberto Sassu , Dmitry Kasatkin , Paul Moore , James Morris , "Serge E. Hallyn" , Catalin Marinas , Jason Gunthorpe , Suzuki Poulose , Steven Price , Sami Mujawar , "Aneesh Kumar K.V" , Jiri Pirko Subject: Re: [PATCH RFC 0/3] security: ima: support TSM measurement registers Message-ID: References: <20260930-ima_tgx_integration_v2-v1-0-722c35370548@arm.com> <9e74ff9d-e8a3-425e-bf7c-f973d06e6cdf@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <9e74ff9d-e8a3-425e-bf7c-f973d06e6cdf@huawei.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261013_014159_646748_21C988CC X-CRM114-Status: GOOD ( 23.00 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org > On 10/1/2026 10:24 PM, Yeoreum Yun wrote: > > Hi Roberto, > > > >> On Thu, 2026-10-01 at 13:27 +0200, Roberto Sassu wrote: > >>> On Wed, 2026-09-30 at 14:43 +0100, Yeoreum Yun wrote: > >>>> Confidential computing guests without a TPM can use TSM measurement > >>>> registers to record IMA measurement digests instead of TPM PCRs. > >> > >> + Gong Ruiqi, of course. > >> > >> Roberto > > Hi Roberto, > > Thank you for involving me! > > >> > >>> Hi Yeoreum > >>> > >>> a similar patch set has been sent to the linux-integrity mailing list: > >>> > >>> https://lore.kernel.org/linux-integrity/20250630125928.765285-1-gongruiqi1@huawei.com/ > >>> > >>> Could you please work with Gong Ruiqi to have a unified proposal? > >>> > >>> Thanks > >>> > >>> Roberto > >>> > > > > Thanks for letting me know and I think the proposal is almost the same > > with the different terminology only. > > > > @Gong, what do you think? > > Hi Yeoreum, > > Nice to see this topic picked up again — I'm glad the IMA RoT framework > series I posted last year is still of interest. > > Yes, I'd be happy to work with you on a unified proposal. It's been a > while since I last worked on that series, so I'll first revisit my > previous patch set, and then follow up with you to discuss the code details. > > Looking forward to working with you. > > BR, > Ruiqi Hi Ruiqi :) Thanks for replying and I'm happy with you too. However, I think we need to rework based on the Jiri's patch [0]. Any thought? Link: [0] https://github.com/jpirko/linux_mlxsw/tree/wip_attestation_pre_rfc_draft1 -- Sincerely, Yeoreum Yun