Merge tag 'platform-drivers-x86-v5.18-1' of... (14646776) · Commits · EulixOS / Software / Kernel

Documentation/ABI/testing/sysfs-class-firmware-attributes

+45 −0

Original line number	Diff line number	Diff line
		@@ -246,6 +246,51 @@ Description:
		that is being referenced (e.g hdd0, hdd1 etc)
		This attribute defaults to device 0.

		certificate:
		signature:
		save_signature:
		These attributes are used for certificate based authentication. This is
		used in conjunction with a signing server as an alternative to password
		based authentication.
		The user writes to the attribute(s) with a BASE64 encoded string obtained
		from the signing server.
		The attributes can be displayed to check the stored value.

		Some usage examples:
		Installing a certificate to enable feature:
		echo <supervisor password > authentication/Admin/current_password
		echo <signed certificate> > authentication/Admin/certificate

		Updating the installed certificate:
		echo <signature> > authentication/Admin/signature
		echo <signed certificate> > authentication/Admin/certificate

		Removing the installed certificate:
		echo <signature> > authentication/Admin/signature
		echo '' > authentication/Admin/certificate

		Changing a BIOS setting:
		echo <signature> > authentication/Admin/signature
		echo <save signature> > authentication/Admin/save_signature
		echo Enable > attribute/PasswordBeep/current_value

		You cannot enable certificate authentication if a supervisor password
		has not been set.
		Clearing the certificate results in no bios-admin authentication method
		being configured allowing anyone to make changes.
		After any of these operations the system must reboot for the changes to
		take effect.

		certificate_thumbprint:
		Read only attribute used to display the MD5, SHA1 and SHA256 thumbprints
		for the certificate installed in the BIOS.

		certificate_to_password:
		Write only attribute used to switch from certificate based authentication
		back to password based.
		Usage:
		echo <signature> > authentication/Admin/signature
		echo <password> > authentication/Admin/certificate_to_password


		What: /sys/class/firmware-attributes/*/attributes/pending_reboot

Documentation/ABI/testing/sysfs-driver-intel_sdsi

0 → 100644

+77 −0

Original line number	Diff line number	Diff line
		What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X
		Date: Feb 2022
		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.

		Some files communicate with SDSi 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.
		EPROTO Failure in mailbox protocol detected by driver.
		See log for details.
		EOVERFLOW For provision commands, the size of the data
		exceeds what may be written.
		ESPIPE Seeking is not allowed.
		ETIMEDOUT Failure to complete mailbox transaction in time.

		What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/guid
		Date: Feb 2022
		KernelVersion: 5.18
		Contact: "David E. Box" <david.e.box@linux.intel.com>
		Description:
		(RO) The GUID for the registers file. The GUID identifies
		the layout of the registers file in this directory.
		Information about the register layouts for a particular GUID
		is available at http://github.com/intel/intel-sdsi

		What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/registers
		Date: Feb 2022
		KernelVersion: 5.18
		Contact: "David E. Box" <david.e.box@linux.intel.com>
		Description:
		(RO) Contains information needed by applications to provision
		a CPU and monitor status information. The layout of this file
		is determined by the GUID in this directory. Information about
		the layout for a particular GUID is available at
		http://github.com/intel/intel-sdsi

		What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/provision_akc
		Date: Feb 2022
		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.

		What: /sys/bus/auxiliary/devices/intel_vsec.sdsi.X/provision_cap
		Date: Feb 2022
		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.

		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.

Documentation/ABI/testing/sysfs-platform-lg-laptop

+1 −0

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@ Date: October 2018
		KernelVersion: 4.20
		Contact: "Matan Ziv-Av <matan@svgalib.org>
		Description:
		Deprecated use /sys/class/power_supply/CMB0/charge_control_end_threshold
		Maximal battery charge level. Accepted values are 80 or 100.

		What: /sys/devices/platform/lg-laptop/fan_mode

Documentation/admin-guide/laptops/lg-laptop.rst

+1 −1

Original line number	Diff line number	Diff line
		@@ -38,7 +38,7 @@ FN lock.
		Battery care limit
		------------------

		Writing 80/100 to /sys/devices/platform/lg-laptop/battery_care_limit
		Writing 80/100 to /sys/class/power_supply/CMB0/charge_control_end_threshold
		sets the maximum capacity to charge the battery. Limiting the charge
		reduces battery capacity loss over time.

Documentation/userspace-api/ioctl/ioctl-number.rst

+2 −0

Original line number	Diff line number	Diff line
		@@ -375,6 +375,8 @@ Code Seq# Include File Comments
		<mailto:thomas@winischhofer.net>
		0xF6 all LTTng Linux Trace Toolkit Next Generation
		<mailto:mathieu.desnoyers@efficios.com>
		0xF8 all arch/x86/include/uapi/asm/amd_hsmp.h AMD HSMP EPYC system management interface driver
		<mailto:nchatrad@amd.com>
		0xFD all linux/dm-ioctl.h
		0xFE all linux/isst_if.h
		==== ===== ======================================================= ================================================================