From: Aneesh Kumar K.V <aneesh.kumar@kernel.org>
To: Jiri Pirko <jiri@resnulli.us>
Cc: linux-coco@lists.linux.dev, Kevin Tian <kevin.tian@intel.com>,
Alexey Kardashevskiy <aik@amd.com>,
Xu Yilun <yilun.xu@linux.intel.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Steven Price <steven.price@arm.com>,
Kiryl Shutsemau <kas@kernel.org>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
Jonathan Cameron <jic23@kernel.org>,
Jason Gunthorpe <jgg@nvidia.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Ashish Kalra <ashish.kalra@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
John Allen <john.allen@amd.com>, Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
patches@lists.linux.dev
Subject: Re: [RFC PATCH v1 03/11] attestation: Enter secure operation when evidence is accepted
Date: Sat, 31 Oct 2026 09:39:30 +0530 [thread overview]
Message-ID: <yq5ajymya4ud.fsf@kernel.org> (raw)
In-Reply-To: <auSfroz-gNb62nMG@FV6GYCPJ69>
Jiri Pirko <jiri@resnulli.us> writes:
> Wed, Oct 28, 2026 at 04:26:10PM +0100, aneesh.kumar@kernel.org wrote:
>>Use EVIDENCE_ACCEPT to enter secure operation after userspace has
>>checked the evidence. Check the referenced device and evidence
>>generations before calling the driver, and record acceptance on success.
>>
>>Remove the separate DEVSEC_RUN command and callback.
>>
>>Keep DEVSEC_STATE_GET so userspace can read both evidence acceptance and
>>device state. Clearing acceptance does not undo the device state change.
>>For example, with the following PCI/TSM patches:
>
> Note that the published wip_attestation_all_1 baseline still
> has DEVSEC_RUN. I am planning this merge into EVIDENCE_ACCEPT for
> my next revision, which is not pushed yet.
>
I agree with your comments here and in the other emails regarding
attestation. I will wait for the next revision of your attestation
series. If you can accommodate these changes there, I can rework my
patches accordingly.
Could you also add the ctlv-attestation-spdm family so that I can base
the PCI/TSM changes on top of it?
-aneesh
next prev parent reply other threads:[~2026-10-31 4:09 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-28 15:26 [RFC PATCH v1 00/11] PCI/TSM: Add CTLV attestation Aneesh Kumar K.V (Arm)
2026-10-28 15:26 ` [RFC PATCH v1 01/11] attestation: Restrict inherited operations per instance Aneesh Kumar K.V (Arm)
2026-10-30 13:29 ` Jiri Pirko
2026-10-28 15:26 ` [RFC PATCH v1 02/11] attestation: Filter evidence objects " Aneesh Kumar K.V (Arm)
2026-10-30 13:44 ` Jiri Pirko
2026-10-31 6:24 ` Aneesh Kumar K.V
2026-10-28 15:26 ` [RFC PATCH v1 03/11] attestation: Enter secure operation when evidence is accepted Aneesh Kumar K.V (Arm)
2026-10-30 13:51 ` Jiri Pirko
2026-10-30 15:36 ` Jason Gunthorpe
2026-10-31 4:09 ` Aneesh Kumar K.V [this message]
2026-10-28 15:26 ` [RFC PATCH v1 04/11] attestation: Bind object selection to accepted evidence snapshots Aneesh Kumar K.V (Arm)
2026-10-28 15:26 ` [RFC PATCH v1 05/11] attestation: Make the evidence-get challenge attribute optional Aneesh Kumar K.V (Arm)
2026-10-28 15:26 ` [RFC PATCH v1 06/11] PCI/TSM: Describe the PCI attestation control family Aneesh Kumar K.V (Arm)
2026-10-30 14:01 ` Jiri Pirko
2026-10-30 15:43 ` Jason Gunthorpe
2026-10-31 4:05 ` Aneesh Kumar K.V
2026-10-31 4:22 ` Aneesh Kumar K.V
2026-10-28 15:26 ` [RFC PATCH v1 07/11] attestation: Add attestation helpers for PCI/TSM integration Aneesh Kumar K.V (Arm)
2026-10-28 15:26 ` [RFC PATCH v1 08/11] PCI/TSM: Bind CTLV attestation to connected and locked contexts Aneesh Kumar K.V (Arm)
2026-10-28 22:56 ` Dave Jiang
2026-10-29 5:30 ` Aneesh Kumar K.V
2026-10-29 12:41 ` Jason Gunthorpe
2026-10-30 14:04 ` Jiri Pirko
2026-10-30 14:08 ` Jiri Pirko
2026-10-30 15:39 ` Jason Gunthorpe
2026-10-28 15:26 ` [RFC PATCH v1 09/11] crypto/ccp: Defer SEV-TIO link setup until evidence acceptance Aneesh Kumar K.V (Arm)
2026-10-28 15:26 ` [RFC PATCH v1 10/11] virt: coco: arm-cca-host: Publish slot zero and establish streams after acceptance Aneesh Kumar K.V (Arm)
2026-10-29 16:56 ` Dave Jiang
2026-10-29 17:10 ` Jason Gunthorpe
2026-10-30 9:58 ` Reshetova, Elena
2026-10-30 13:15 ` Jason Gunthorpe
2026-10-31 3:47 ` Aneesh Kumar K.V
2026-10-28 15:26 ` [RFC PATCH v1 11/11] virt: coco: arm-cca-guest: Refresh selected evidence against trusted digests Aneesh Kumar K.V (Arm)
2026-10-30 12:34 ` [RFC PATCH v1 00/11] PCI/TSM: Add CTLV attestation Xu Yilun
2026-10-30 15:32 ` Jason Gunthorpe
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