From: James Bottomley <jejb@linux.ibm.com>
To: Dov Murik <dovmurik@linux.ibm.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
"linux-coco@lists.linux.dev" <linux-coco@lists.linux.dev>,
"amd-sev-snp@lists.suse.com" <amd-sev-snp@lists.suse.com>
Subject: Re: SVSM Attestation and vTPM specification additions - v0.60
Date: Thu, 12 Jan 2023 07:18:02 -0500 [thread overview]
Message-ID: <95318d8211fcd9a7adb574c5e293034937869331.camel@linux.ibm.com> (raw)
In-Reply-To: <ec43c1b9-8239-16c5-a4b5-5fe46970c9e4@linux.ibm.com>
On Thu, 2023-01-12 at 10:19 +0200, Dov Murik wrote:
> Page 28: vTPM Protocol
>
> 5. Will the SVSM update any PCRs on its own? For example, will it
> measure the content of OVMF into PCR0? Or are relying on the SNP
> launch-update measurement (which currently includes both SVSM and
> OVMF) to attest that part of the guest?
If the SVSM were to load OVMF then it would have to because the SVSM
would become the root of trust. While SVSM+OVMF are loaded together
(and attested by the PSP) there's no need because the combined entity
is the root of trust and thus measurements can begin in OVMF.
James
next prev parent reply other threads:[~2023-01-12 12:18 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-01-10 18:54 SVSM Attestation and vTPM specification additions - v0.60 Tom Lendacky
2023-01-10 19:37 ` Tom Lendacky
2023-01-10 19:40 ` Dionna Amalie Glaze
2023-01-10 21:03 ` Tom Lendacky
2023-01-10 22:14 ` James Bottomley
2023-01-10 22:45 ` Tom Lendacky
2023-01-10 23:52 ` James Bottomley
2023-01-11 9:15 ` Christophe de Dinechin Dupont de Dinechin
2023-01-10 20:29 ` James Bottomley
2023-01-10 20:37 ` James Bottomley
2023-01-10 21:33 ` Tom Lendacky
2023-01-10 21:32 ` Tom Lendacky
2023-01-10 21:47 ` James Bottomley
2023-01-10 23:00 ` Tom Lendacky
2023-01-10 23:09 ` James Bottomley
2023-01-11 14:49 ` Tom Lendacky
2023-01-11 14:56 ` James Bottomley
2023-01-10 23:14 ` James Bottomley
2023-01-11 16:39 ` Christophe de Dinechin
2023-01-11 23:00 ` Tom Lendacky
2023-01-12 1:27 ` [EXTERNAL] " Jon Lange
2023-01-13 16:10 ` Tom Lendacky
2023-01-12 13:57 ` James Bottomley
2023-01-12 15:13 ` Tom Lendacky
2023-01-12 15:24 ` James Bottomley
2023-01-13 16:12 ` Tom Lendacky
2023-01-12 8:19 ` Dov Murik
2023-01-12 12:18 ` James Bottomley [this message]
2023-01-13 16:16 ` Tom Lendacky
2023-01-13 11:50 ` Nicolai Stange
2023-01-13 17:20 ` Tom Lendacky
2023-01-24 9:35 ` Jörg Rödel
2023-01-26 14:36 ` Tom Lendacky
2023-01-26 16:45 ` Christophe de Dinechin Dupont de Dinechin
2023-02-01 10:50 ` Jörg Rödel
2023-02-20 15:10 ` Tom Lendacky
2023-01-24 9:45 ` Jörg Rödel
2023-01-26 14:51 ` Tom Lendacky
2023-01-26 16:49 ` Christophe de Dinechin Dupont de Dinechin
2023-01-26 17:33 ` [EXTERNAL] " Jon Lange
2023-01-27 8:35 ` Jörg Rödel
2023-01-27 16:11 ` Jon Lange
2023-01-30 11:29 ` Jörg Rödel
2023-01-31 4:44 ` Jon Lange
2023-01-31 15:06 ` Tom Lendacky
2023-01-31 15:34 ` Jon Lange
2023-02-01 15:20 ` [EXTERNAL] " Christophe de Dinechin Dupont de Dinechin
2023-02-02 6:04 ` Jon Lange
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