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Date: Thu, 17 Nov 2022 14:17:40 +0100
From: Hans de Goede <hdegoede@...hat.com>
To: "David E. Box" <david.e.box@...ux.intel.com>, markgross@...nel.org,
andriy.shevchenko@...ux.intel.com, srinivas.pandruvada@...el.com
Cc: platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/9] platform/x86/intel/sdsi: Add Intel On Demand text
Hi,
On 11/1/22 20:10, David E. Box wrote:
> 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@...ux.intel.com>
Thanks, patch looks good to me:
Reviewed-by: Hans de Goede <hdegoede@...hat.com>
Regards,
Hans
> ---
> .../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@...ux.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@...ux.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@...ux.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@...ux.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@...ux.intel.com>");
> -MODULE_DESCRIPTION("Intel Software Defined Silicon driver");
> +MODULE_DESCRIPTION("Intel On Demand (SDSi) driver");
> MODULE_LICENSE("GPL");
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