From: Dionna Amalie Glaze <dionnaglaze@google.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: linux-coco@lists.linux.dev,
Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@linux.intel.com>,
James Bottomley <James.Bottomley@hansenpartnership.com>,
Peter Gonda <pgonda@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Samuel Ortiz <sameo@rivosinc.com>,
Thomas Gleixner <tglx@linutronix.de>,
peterz@infradead.org, dave.hansen@linux.intel.com, bp@alien8.de
Subject: Re: [PATCH v6 3/7] configfs-tsm: Introduce a shared ABI for attestation reports
Date: Thu, 12 Oct 2023 21:43:46 -0700 [thread overview]
Message-ID: <CAAH4kHYKOJcVdbEgey82aRcoaKzRi7qhHAtwG5pVNLWTwV0MGg@mail.gmail.com> (raw)
In-Reply-To: <169716325275.984874.18286682727336216616.stgit@dwillia2-xfh.jf.intel.com>
> +What: /sys/kernel/config/tsm/report/$name/privlevel
> +Date: September, 2023
> +KernelVersion: v6.7
> +Contact: linux-coco@lists.linux.dev
> +Description:
> + (WO) Attribute is visible if a TSM implementation provider
> + supports the concept of attestation reports for TVMs running at
> + different privilege levels, like SEV-SNP "VMPL", specify the
> + privilege level via this attribute. The minimum acceptable
> + value is conveyed via @privlevel_floor and the maximum
> + acceptable value is TSM_PRIVLEVEL_MAX (3).
> +
I'm unaware of another CC technology that has different privilege
levels at which to request an attestation, but I'd be much happier to
see another example here.
I take it my feedback about VLEK vs VCEK selection is going to be left
for a future patch series? I can drop it if we can agree another WO
attribute for that won't be met with a lot of barriers, but I think we
may be generalizing a single data point with the privlevel and key
selection attributes.
--
-Dionna Glaze, PhD (she/her)
next prev parent reply other threads:[~2023-10-13 4:44 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-13 2:13 [PATCH v6 0/7] configfs-tsm: Attestation Report ABI Dan Williams
2023-10-13 2:14 ` [PATCH v6 1/7] virt: sevguest: Fix passing a stack buffer as a scatterlist target Dan Williams
2023-10-13 2:14 ` [PATCH v6 2/7] virt: coco: Add a coco/Makefile and coco/Kconfig Dan Williams
2023-10-13 2:14 ` [PATCH v6 3/7] configfs-tsm: Introduce a shared ABI for attestation reports Dan Williams
2023-10-13 4:43 ` Dionna Amalie Glaze [this message]
2023-10-13 5:15 ` Dan Williams
2023-10-16 6:36 ` Alexey Kardashevskiy
2023-10-17 2:19 ` Dan Williams
2023-10-17 6:20 ` Alexey Kardashevskiy
2023-10-19 1:29 ` Dan Williams
2023-10-19 20:24 ` Dan Williams
2023-10-13 2:14 ` [PATCH v6 4/7] virt: sevguest: Prep for kernel internal get_ext_report() Dan Williams
2023-10-13 2:14 ` [PATCH v6 5/7] mm/slab: Add __free() support for kvfree Dan Williams
2023-10-13 2:14 ` [PATCH v6 6/7] virt: sevguest: Add TSM_REPORTS support for SNP_GET_EXT_REPORT Dan Williams
2023-10-13 15:38 ` Tom Lendacky
2023-10-14 4:46 ` Dan Williams
2023-10-16 11:36 ` Alexey Kardashevskiy
2023-10-16 15:39 ` Dionna Amalie Glaze
2023-10-16 15:42 ` Peter Gonda
2023-10-17 0:42 ` Alexey Kardashevskiy
2023-10-19 4:30 ` Dan Williams
2023-10-17 4:07 ` Dan Williams
2023-10-17 5:35 ` Alexey Kardashevskiy
2023-10-17 6:28 ` Alexey Kardashevskiy
2023-10-19 4:43 ` Dan Williams
2023-10-19 5:12 ` Alexey Kardashevskiy
2023-10-19 3:34 ` Dan Williams
2023-10-13 2:14 ` [PATCH v6 7/7] virt: tdx-guest: Add Quote generation support using TSM_REPORTS Dan Williams
2023-10-19 18:12 ` Peter Gonda
2023-10-13 15:39 ` [PATCH v6 0/7] configfs-tsm: Attestation Report ABI Tom Lendacky
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