[PATCH 1/9] platform/x86/intel/sdsi: Add Intel On Demand text

David E. Box
2022-11-01T19:11:23Z

Intel Software Defined Silicon (SDSi) is now officially known as Intel
On Demand. Add On Demand to the description in the kconfig, documentation,
and driver source.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
---
.../ABI/testing/sysfs-driver-intel_sdsi | 37 ++++++++++---------
drivers/platform/x86/intel/Kconfig | 8 ++--
drivers/platform/x86/intel/sdsi.c | 4 +-
3 files changed, 25 insertions(+), 24 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-driver-intel_sdsi b/Documentation/ABI/testing/sysfs-driver-intel_sdsi
index 96b92c105ec4..9d77f30d9b9a 100644
--- a/Documentation/ABI/testing/sysfs-driver-intel_sdsi
+++ b/Documentation/ABI/testing/sysfs-driver-intel_sdsi
@@ -4,21 +4,21 @@ KernelVersion: 5.18
Contact: "David E. Box" <david.e.box@linux.intel.com>
Description:
This directory contains interface files for accessing Intel
- Software Defined Silicon (SDSi) features on a CPU. X
- represents the socket instance (though not the socket ID).
- The socket ID is determined by reading the registers file
- and decoding it per the specification.
+ On Demand (formerly Software Defined Silicon or SDSi) features
+ on a CPU. X represents the socket instance (though not the
+ socket ID). The socket ID is determined by reading the
+ registers file and decoding it per the specification.

- Some files communicate with SDSi hardware through a mailbox.
- Should the operation fail, one of the following error codes
- may be returned:
+ Some files communicate with On Demand hardware through a
+ mailbox. Should the operation fail, one of the following error
+ codes may be returned:

========== =====
Error Code Cause
========== =====
EIO General mailbox failure. Log may indicate cause.
EBUSY Mailbox is owned by another agent.
- EPERM SDSI capability is not enabled in hardware.
+ EPERM On Demand capability is not enabled in hardware.
EPROTO Failure in mailbox protocol detected by driver.
See log for details.
EOVERFLOW For provision commands, the size of the data
@@ -54,8 +54,8 @@ KernelVersion: 5.18
Contact: "David E. Box" <david.e.box@linux.intel.com>
Description:
(WO) Used to write an Authentication Key Certificate (AKC) to
- the SDSi NVRAM for the CPU. The AKC is used to authenticate a
- Capability Activation Payload. Mailbox command.
+ the On Demand NVRAM for the CPU. The AKC is used to authenticate
+ a Capability Activation Payload. Mailbox command.

What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/provision_cap
Date: Feb 2022
@@ -63,17 +63,18 @@ KernelVersion: 5.18
Contact: "David E. Box" <david.e.box@linux.intel.com>
Description:
(WO) Used to write a Capability Activation Payload (CAP) to the
- SDSi NVRAM for the CPU. CAPs are used to activate a given CPU
- feature. A CAP is validated by SDSi hardware using a previously
- provisioned AKC file. Upon successful authentication, the CPU
- configuration is updated. A cold reboot is required to fully
- activate the feature. Mailbox command.
+ On Demand NVRAM for the CPU. CAPs are used to activate a given
+ CPU feature. A CAP is validated by On Demand hardware using a
+ previously provisioned AKC file. Upon successful authentication,
+ the CPU configuration is updated. A cold reboot is required to
+ fully activate the feature. Mailbox command.

What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/state_certificate
Date: Feb 2022
KernelVersion: 5.18
Contact: "David E. Box" <david.e.box@linux.intel.com>
Description:
- (RO) Used to read back the current State Certificate for the CPU
- from SDSi hardware. The State Certificate contains information
- about the current licenses on the CPU. Mailbox command.
+ (RO) Used to read back the current state certificate for the CPU
+ from On Demand hardware. The state certificate contains
+ information about the current licenses on the CPU. Mailbox
+ command.
diff --git a/drivers/platform/x86/intel/Kconfig b/drivers/platform/x86/intel/Kconfig
index 794968bda115..d5a33473e838 100644
--- a/drivers/platform/x86/intel/Kconfig
+++ b/drivers/platform/x86/intel/Kconfig
@@ -157,13 +157,13 @@ config INTEL_RST
as usual.

config INTEL_SDSI
- tristate "Intel Software Defined Silicon Driver"
+ tristate "Intel On Demand (Software Defined Silicon) Driver"
depends on INTEL_VSEC
depends on X86_64
help
- This driver enables access to the Intel Software Defined Silicon
- interface used to provision silicon features with an authentication
- certificate and capability license.
+ This driver enables access to the Intel On Demand (formerly Software
+ Defined Silicon) interface used to provision silicon features with an
+ authentication certificate and capability license.

To compile this driver as a module, choose M here: the module will
be called intel_sdsi.
diff --git a/drivers/platform/x86/intel/sdsi.c b/drivers/platform/x86/intel/sdsi.c
index c830e98dfa38..32793919473d 100644
--- a/drivers/platform/x86/intel/sdsi.c
+++ b/drivers/platform/x86/intel/sdsi.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Intel Software Defined Silicon driver
+ * Intel On Demand (Software Defined Silicon) driver
*
* Copyright (c) 2022, Intel Corporation.
* All Rights Reserved.
@@ -586,5 +586,5 @@ static struct auxiliary_driver sdsi_aux_driver = {
module_auxiliary_driver(sdsi_aux_driver);

MODULE_AUTHOR("David E. Box <david.e.box@linux.intel.com>");
-MODULE_DESCRIPTION("Intel Software Defined Silicon driver");
+MODULE_DESCRIPTION("Intel On Demand (SDSi) driver");
MODULE_LICENSE("GPL");
--
2.25.1