From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f41.google.com (mail-pj1-f41.google.com [209.85.216.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 140C8A94F for ; Tue, 10 Jan 2023 19:40:39 +0000 (UTC) Received: by mail-pj1-f41.google.com with SMTP id n12so13488253pjp.1 for ; Tue, 10 Jan 2023 11:40:39 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=t+UmBH0KEMkJepkYdqkigy2UrlidbCnQZPnXeZKJo3A=; b=OSr2NS20QNgKsT/P4lZDXmQ6Tp80EYCqblk1eStaTuIjgndWv1uvphy6962z1U9y+k 1otIwOjF4yBFsRSw8836cRS9d9mR2nltQQupoucB+f6d8ClzBd0usGePcoNvrp4Rf7kZ nODfLGg39G0NYZvjUaOC4O4lIBsEV2DJcYh0cr3ffLUkZfiDZnDTqRZjGIQ0nVt8/7X2 QPML0RMEiqXUt0sJsQQWVPSh2ECLf6AWdK3oL+Es2lgJetAGXfd65O6beegCeqxDW30j d0lW3yEuPKv2cQE3qFALiqz3uQDRQfEIzR1UgWqRpk6sRGOLkxfmO+bcK+lyuz7pc4OF QJ4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=t+UmBH0KEMkJepkYdqkigy2UrlidbCnQZPnXeZKJo3A=; b=dbeJBwMSg2TLBUZ3rGmzL2OjddzdAWQuDZy7BFA8yxESOHrfYmObWRHPvmJ0KrC2N/ Fcr2kBRxl7328CZaz3SXJi6RiT0JTf1+SrsqbANYjh86eBtS1aqe+PAAGBo2s+MfkhhH mYp+7llGlzZd0n7knRDhrX/HUoeYlAeSFHH9dhBONS+g4l2tkOPnSK/QOm6hIoivT4mB w4/7CkRvAsuBgoSimSh6tZdh6hn5Y0LXsangC8tJHbzYKTJNhUop/mIhJIaeKNs25OY4 jHXtwn9WRzwJ1pj0sVoG+X63GOtCVJHf6x/nB1SmEPe8mhVVAFAMVq0c9R3OlY7PRikd 0DSA== X-Gm-Message-State: AFqh2kpyJRuBZnVrvTyKbyNMezClvepabOBak+e78g0K3kwI452e4QId 5cvIAV0xFixOq23dYswjeOYxgrvNjvX///JIteU59A== X-Google-Smtp-Source: AMrXdXvIKd8QptB8bXGhFMIeyLtl1P+xk2tSdIMMYOexAkX6tNFyGi3z9kpkINahVkUyP8YVLwjuK5TlGVLnej10bhg= X-Received: by 2002:a17:90a:5296:b0:226:eb2d:c7d4 with SMTP id w22-20020a17090a529600b00226eb2dc7d4mr1281154pjh.106.1673379639313; Tue, 10 Jan 2023 11:40:39 -0800 (PST) Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: <09819cb3-1938-fe86-b948-28aaffbe584e@amd.com> In-Reply-To: <09819cb3-1938-fe86-b948-28aaffbe584e@amd.com> From: Dionna Amalie Glaze Date: Tue, 10 Jan 2023 11:40:27 -0800 Message-ID: Subject: Re: SVSM Attestation and vTPM specification additions - v0.60 To: Tom Lendacky Cc: "linux-coco@lists.linux.dev" , "amd-sev-snp@lists.suse.com" Content-Type: text/plain; charset="UTF-8" typo: "oridnal" For the statement "Locality usage for the vTPM is not currently defined." should this be interpreted as version 1 of the vTPM protocol will not support locality, or simply that version 1 might have the affordance to add behavior for non-zero locality in a future revision of version 1, such that the result is not specified as SVSM_ERR_INVALID_PARAMETER? I think the latter is probably a dangerous interpretation unless v0.60 of this document is strictly considered "unstable" and shouldn't be used upstream, so I'd recommend clarifying that "currently" in a document that might later be outdated should be precise about its specified behavior in a versioned fashion. On Tue, Jan 10, 2023 at 10:54 AM Tom Lendacky wrote: > > Attached is an updated draft version of the SVSM specification with added > support for an attestation protocol and a vTPM protocol as well as other > miscellaneous changes (all identified by change bar). Please take a look > and reply with any feedback you may have. > > Thanks, > Tom -- -Dionna Glaze, PhD (she/her)