From: Jonathan Cameron <jonathan.cameron@huawei.com>
To: Dan Williams <dan.j.williams@intel.com>
Cc: <linux-coco@lists.linux.dev>, <linux-pci@vger.kernel.org>,
<gregkh@linuxfoundation.org>, <bhelgaas@google.com>,
<yilun.xu@linux.intel.com>, <aneesh.kumar@kernel.org>,
<aik@amd.com>
Subject: Re: [PATCH 5/7] PCI/TSM: Add Device Security (TVM Guest) operations support
Date: Tue, 16 Sep 2025 18:10:12 +0100 [thread overview]
Message-ID: <20250916181012.000049fa@huawei.com> (raw)
In-Reply-To: <20250827035259.1356758-6-dan.j.williams@intel.com>
One trivial thing noticed on a first scan through.
> Documentation/ABI/testing/sysfs-bus-pci | 46 ++-
> Documentation/ABI/testing/sysfs-class-tsm | 19 ++
> drivers/pci/Kconfig | 2 +
> drivers/pci/tsm.c | 358 +++++++++++++++++++++-
> drivers/virt/coco/tsm-core.c | 41 +++
> include/linux/device.h | 1 +
> include/linux/pci-tsm.h | 25 +-
> 7 files changed, 482 insertions(+), 10 deletions(-)
> +
> +What: /sys/bus/pci/devices/.../tsm/lock
> +Contact: linux-coco@lists.linux.dev
> +Description:
> + (RW) Write the name of a TSM (TEE Security Manager) device from
> + /sys/class/tsm to this file to request that TSM lock th device
th device device -> the device.?
> + device. This puts the device in a state where it can not accept
> + or issue secure memory cycles (T=1 in the PCIe TLP), and
next prev parent reply other threads:[~2025-09-16 17:10 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-27 3:52 [PATCH 0/7] PCI/TSM: TEE I/O infrastructure Dan Williams
2025-08-27 3:52 ` [PATCH 1/7] PCI/TSM: Add pci_tsm_{bind,unbind}() methods for instantiating TDIs Dan Williams
2025-09-02 0:12 ` Alexey Kardashevskiy
2025-09-02 15:04 ` Aneesh Kumar K.V
2025-09-10 4:47 ` dan.j.williams
2025-09-10 4:46 ` dan.j.williams
2025-09-02 15:05 ` Aneesh Kumar K.V
2025-09-10 4:50 ` dan.j.williams
2025-09-03 15:17 ` Aneesh Kumar K.V
2025-09-04 10:38 ` Alexey Kardashevskiy
2025-09-04 12:56 ` Aneesh Kumar K.V
2025-09-05 2:32 ` Alexey Kardashevskiy
2025-09-10 5:09 ` dan.j.williams
2025-08-27 3:52 ` [PATCH 2/7] PCI/TSM: Add pci_tsm_guest_req() for managing TDIs Dan Williams
2025-08-28 9:53 ` Alexey Kardashevskiy
2025-08-28 22:07 ` dan.j.williams
2025-08-29 2:21 ` Alexey Kardashevskiy
2025-08-30 2:37 ` dan.j.williams
2025-09-01 23:49 ` Alexey Kardashevskiy
2025-09-08 11:09 ` Alexey Kardashevskiy
2025-09-10 5:35 ` dan.j.williams
2025-10-10 4:48 ` Xu Yilun
2025-08-28 13:02 ` Aneesh Kumar K.V
2025-08-28 22:14 ` dan.j.williams
2025-08-27 3:52 ` [PATCH 3/7] device core: Introduce confidential device acceptance Dan Williams
2025-08-27 6:14 ` Greg KH
2025-08-28 20:07 ` dan.j.williams
2025-09-16 16:58 ` Jonathan Cameron
2025-08-27 3:52 ` [PATCH 4/7] x86/ioremap, resource: Introduce IORES_DESC_ENCRYPTED for encrypted PCI MMIO Dan Williams
2025-09-17 21:30 ` Jason Gunthorpe
2025-10-07 8:23 ` Alexey Kardashevskiy
2025-10-07 21:31 ` Alexey Kardashevskiy
2025-08-27 3:52 ` [PATCH 5/7] PCI/TSM: Add Device Security (TVM Guest) operations support Dan Williams
2025-09-03 15:22 ` Aneesh Kumar K.V
2025-09-10 5:15 ` dan.j.williams
2025-09-11 8:31 ` Aneesh Kumar K.V
2025-09-04 15:02 ` Aneesh Kumar K.V
2025-09-10 5:31 ` dan.j.williams
2025-09-16 17:10 ` Jonathan Cameron [this message]
2025-08-27 3:52 ` [PATCH 6/7] samples/devsec: Introduce a "Device Security TSM" sample driver Dan Williams
2025-08-27 12:39 ` Jason Gunthorpe
2025-08-27 23:47 ` Alexey Kardashevskiy
2025-08-28 21:38 ` dan.j.williams
2025-08-29 16:02 ` Jason Gunthorpe
2025-08-29 20:00 ` dan.j.williams
2025-08-29 23:34 ` Jason Gunthorpe
2025-08-27 3:52 ` [PATCH 7/7] tools/testing/devsec: Add a script to exercise samples/devsec/ Dan Williams
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250916181012.000049fa@huawei.com \
--to=jonathan.cameron@huawei.com \
--cc=aik@amd.com \
--cc=aneesh.kumar@kernel.org \
--cc=bhelgaas@google.com \
--cc=dan.j.williams@intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=linux-coco@lists.linux.dev \
--cc=linux-pci@vger.kernel.org \
--cc=yilun.xu@linux.intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.