From: Dan Williams <dan.j.williams@intel.com>
To: linux-coco@lists.linux.dev
Cc: Brijesh Singh <brijesh.singh@amd.com>,
Kuppuswamy Sathyanarayanan
<sathyanarayanan.kuppuswamy@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Tom Lendacky <thomas.lendacky@amd.com>,
Peter Gonda <pgonda@google.com>, Borislav Petkov <bp@alien8.de>,
Dionna Amalie Glaze <dionnaglaze@google.com>,
Samuel Ortiz <sameo@rivosinc.com>,
Dionna Glaze <dionnaglaze@google.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 0/5] tsm: Attestation Report ABI
Date: Mon, 14 Aug 2023 00:43:09 -0700 [thread overview]
Message-ID: <169199898909.1782217.10899362240465838600.stgit@dwillia2-xfh.jf.intel.com> (raw)
Changes since v1:
- Switch from Keyring to sysfs (James)
An attestation report is signed evidence of how a Trusted Virtual
Machine (TVM) was launched and its current state. A verifying party uses
the report to make judgements of the confidentiality and integrity of
that execution environment. Upon successful attestation the verifying
party may, for example, proceed to deploy secrets to the TVM to carry
out a workload. Multiple confidential computing platforms share this
similar flow.
The approach of adding adding new char devs and new ioctls, for what
amounts to the same logical functionality with minor formatting
differences across vendors [1], is untenable. Common concepts and the
community benefit from common infrastructure.
Use sysfs for this facility for maintainability compared to ioctl(). The
expectation is that this interface is a boot time, configure once, get
report, and done flow. I.e. not something that receives ongoing
transactions at runtime. However, runtime retrieval is not precluded and
a mechanism to detect potential configuration conflicts from
multiple-threads using this interface is included.
The keyring@ list is dropped on this posting since a new key-type is no
longer being pursued.
Link: http://lore.kernel.org/r/cover.1684048511.git.sathyanarayanan.kuppuswamy@linux.intel.com
---
Dan Williams (5):
virt: coco: Add a coco/Makefile and coco/Kconfig
tsm: Introduce a shared ABI for attestation reports
virt: sevguest: Prep for kernel internal {get,get_ext}_report()
mm/slab: Add __free() support for kvfree
virt: sevguest: Add TSM_REPORTS support for SNP_{GET,GET_EXT}_REPORT
Documentation/ABI/testing/sysfs-class-tsm | 47 +++++
MAINTAINERS | 8 +
drivers/virt/Kconfig | 6 -
drivers/virt/Makefile | 4
drivers/virt/coco/Kconfig | 13 +
drivers/virt/coco/Makefile | 8 +
drivers/virt/coco/sev-guest/Kconfig | 1
drivers/virt/coco/sev-guest/sev-guest.c | 129 ++++++++++++-
drivers/virt/coco/tdx-guest/Kconfig | 1
drivers/virt/coco/tsm.c | 290 +++++++++++++++++++++++++++++
include/linux/slab.h | 2
include/linux/tsm.h | 45 +++++
12 files changed, 535 insertions(+), 19 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-class-tsm
create mode 100644 drivers/virt/coco/Kconfig
create mode 100644 drivers/virt/coco/Makefile
create mode 100644 drivers/virt/coco/tsm.c
create mode 100644 include/linux/tsm.h
base-commit: 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5
next reply other threads:[~2023-08-14 7:43 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-14 7:43 Dan Williams [this message]
2023-08-14 7:43 ` [PATCH v2 1/5] virt: coco: Add a coco/Makefile and coco/Kconfig Dan Williams
2023-08-14 7:43 ` [PATCH v2 2/5] tsm: Introduce a shared ABI for attestation reports Dan Williams
2023-08-14 8:24 ` Jeremi Piotrowski
2023-08-14 16:21 ` Dan Williams
2023-08-14 15:38 ` Greg Kroah-Hartman
2023-08-14 16:43 ` Dan Williams
2023-08-14 18:43 ` Greg Kroah-Hartman
2023-08-15 19:51 ` Tom Lendacky
2023-08-16 14:44 ` Tom Lendacky
2023-08-16 15:12 ` Dan Williams
2023-08-22 7:29 ` Roy Hopkins
2023-08-23 13:49 ` Samuel Ortiz
2023-08-28 10:46 ` Dr. Greg
2023-08-14 7:43 ` [PATCH v2 3/5] virt: sevguest: Prep for kernel internal {get, get_ext}_report() Dan Williams
2023-08-14 16:58 ` Dionna Amalie Glaze
2023-08-14 23:24 ` Dan Williams
2023-08-15 20:11 ` Tom Lendacky
2023-08-15 21:03 ` Dan Williams
2023-08-16 19:38 ` Dionna Amalie Glaze
2023-08-15 20:20 ` Tom Lendacky
2023-08-15 21:37 ` Dan Williams
2023-08-14 7:43 ` [PATCH v2 4/5] mm/slab: Add __free() support for kvfree Dan Williams
2023-08-14 15:31 ` Greg Kroah-Hartman
2023-08-14 16:17 ` Peter Zijlstra
2023-08-14 18:44 ` Greg Kroah-Hartman
2023-08-14 18:45 ` Greg Kroah-Hartman
2024-01-04 6:57 ` Lukas Wunner
2024-01-04 18:29 ` Dan Williams
2023-08-14 7:43 ` [PATCH v2 5/5] virt: sevguest: Add TSM_REPORTS support for SNP_{GET, GET_EXT}_REPORT Dan Williams
2023-08-14 8:30 ` Jeremi Piotrowski
2023-08-14 16:22 ` Dan Williams
2023-08-14 11:21 ` Peter Zijlstra
2023-08-14 16:25 ` Dan Williams
2023-08-14 16:48 ` Peter Zijlstra
2023-08-14 22:15 ` Peter Zijlstra
2023-08-15 8:37 ` Peter Zijlstra
2023-08-15 20:50 ` Tom Lendacky
2023-08-15 21:40 ` Dan Williams
2023-08-14 9:04 ` [PATCH v2 0/5] tsm: Attestation Report ABI Jeremi Piotrowski
2023-08-14 17:12 ` Dan Williams
2023-08-15 14:27 ` Peter Gonda
2023-08-15 17:16 ` Dionna Amalie Glaze
2023-08-15 21:13 ` Dan Williams
2023-08-15 18:13 ` Dan Williams
2023-08-16 9:42 ` Jeremi Piotrowski
2023-08-23 11:21 ` Dr. Greg
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