From: Christoph Hellwig <hch@lst.de>
To: Dan Williams <dan.j.williams@intel.com>
Cc: Christoph Hellwig <hch@lst.de>,
Bjorn Helgaas <helgaas@kernel.org>,
Jonathan Cameron <Jonathan.Cameron@huawei.com>,
"Weiny, Ira" <ira.weiny@intel.com>,
Alison Schofield <alison.schofield@intel.com>,
Vishal Verma <vishal.l.verma@intel.com>,
Ben Widawsky <ben.widawsky@intel.com>,
Bjorn Helgaas <bhelgaas@google.com>,
linux-cxl@vger.kernel.org, Linux PCI <linux-pci@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH 3/5] cxl/pci: Add DOE Auxiliary Devices
Date: Tue, 30 Nov 2021 07:42:17 +0100 [thread overview]
Message-ID: <20211130064217.GA10312@lst.de> (raw)
In-Reply-To: <CAPcyv4gYBpx6Anw__gW-3xZfbcTaVv5eUR6wuxt_Ert1N6hDZA@mail.gmail.com>
On Mon, Nov 29, 2021 at 03:59:25PM -0800, Dan Williams wrote:
> DOE negotiates security features like SPDM and IDE. I think it is
> important for the kernel to be able to control access to DOE instances
> even though it has not cared about protecting itself from userspace
> initiated configuration writes in the past.
I think DOE is pretty much a kernel only feature and we can't allow
userspace access to it at all.
next prev parent reply other threads:[~2021-11-30 6:42 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-11-05 23:50 [PATCH 0/5] CXL: Read CDAT and DSMAS data from the device ira.weiny
2021-11-05 23:50 ` [PATCH 1/5] PCI: Add vendor ID for the PCI SIG ira.weiny
2021-11-17 21:50 ` Bjorn Helgaas
2021-11-05 23:50 ` [PATCH 2/5] PCI/DOE: Add Data Object Exchange Aux Driver ira.weiny
2021-11-08 12:15 ` Jonathan Cameron
2021-11-10 5:45 ` Ira Weiny
2021-11-18 18:48 ` Jonathan Cameron
2021-11-16 23:48 ` Bjorn Helgaas
2021-12-03 20:48 ` Dan Williams
2021-12-03 23:56 ` Bjorn Helgaas
2021-12-04 15:47 ` Dan Williams
2021-12-06 12:27 ` Jonathan Cameron
2021-11-05 23:50 ` [PATCH 3/5] cxl/pci: Add DOE Auxiliary Devices ira.weiny
2021-11-08 13:09 ` Jonathan Cameron
2021-11-11 1:31 ` Ira Weiny
2021-11-11 11:53 ` Jonathan Cameron
2021-11-16 23:48 ` Bjorn Helgaas
2021-11-17 12:23 ` Jonathan Cameron
2021-11-17 22:15 ` Bjorn Helgaas
2021-11-18 10:51 ` Jonathan Cameron
2021-11-19 6:48 ` Christoph Hellwig
2021-11-29 23:37 ` Dan Williams
2021-11-29 23:59 ` Dan Williams
2021-11-30 6:42 ` Christoph Hellwig [this message]
2021-11-05 23:50 ` [PATCH 4/5] cxl/mem: Add CDAT table reading from DOE ira.weiny
2021-11-08 13:21 ` Jonathan Cameron
2021-11-08 23:19 ` Ira Weiny
2021-11-08 15:02 ` Jonathan Cameron
2021-11-08 22:25 ` Ira Weiny
2021-11-09 11:09 ` Jonathan Cameron
2021-11-19 14:40 ` Jonathan Cameron
2021-11-05 23:50 ` [PATCH 5/5] cxl/cdat: Parse out DSMAS data from CDAT table ira.weiny
2021-11-08 14:52 ` Jonathan Cameron
2021-11-11 3:58 ` Ira Weiny
2021-11-11 11:58 ` Jonathan Cameron
2021-11-18 17:02 ` Jonathan Cameron
2021-11-19 14:55 ` Jonathan Cameron
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