Add support for reading the meter certificate from Intel On Demand
hardware. The meter certificate [1] is used to access the utilization
metrics of enabled features in support of the Intel On Demand consumption
model. Similar to the state certificate, the meter certificate is read by
mailbox command.
While making similar changes also use the BIN_ATTR_ADMIN_RO helper to
create the 'registers' sysfs file.
Link: https://github.com/intel-sandbox/debox1.intel_sdsi/blob/gnr-review/meter-certificate.rst [1]
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20221119002343.1281885-5-david.e.box@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20221119002343.1281885-2-david.e.box@linux.intel.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Fix the following warnings from "make htmldocs":
Documentation/ABI/testing/sysfs-driver-intel_sdsi:2:
WARNING: Unexpected indentation.
WARNING: Block quote ends without a blank line; unexpected unindent.
WARNING: Definition list ends without a blank line; unexpected unindent.
By turning the error-code table into a proper ReST table. While at it
also fix the error-code table mixing tab and spaces for indentation
(switch to all tabs).
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20220324164737.21765-2-hdegoede@redhat.com
Intel Software Defined Silicon (SDSi) is a post manufacturing mechanism for
activating additional silicon features. Features are enabled through a
license activation process. The SDSi driver provides a per socket, sysfs
attribute interface for applications to perform 3 main provisioning
functions:
1. Provision an Authentication Key Certificate (AKC), a key written to
internal NVRAM that is used to authenticate a capability specific
activation payload.
2. Provision a Capability Activation Payload (CAP), a token authenticated
using the AKC and applied to the CPU configuration to activate a new
feature.
3. Read the SDSi State Certificate, containing the CPU configuration
state.
The operations perform function specific mailbox commands that forward the
requests to SDSi hardware to perform authentication of the payloads and
enable the silicon configuration (to be made available after power
cycling).
The SDSi device itself is enumerated as an auxiliary device from the
intel_vsec driver and as such has a build dependency on CONFIG_INTEL_VSEC.
Link: https://github.com/intel/intel-sdsi
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Mark Gross <markgross@kernel.org>
Link: https://lore.kernel.org/r/20220212013252.1293396-2-david.e.box@linux.intel.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
David E. Box