Hewlett-packard Development Company, L.p.

Stanley Hyojun Park

Jeffrey Kevin Jeansonne

Christopher H Stewart

Valiuddin Y Ali

Lan Wang

Mark A Piwonka

Michael R Durham

Richard A Bramley, Jr

Baraneedharan Anbazhagan

Dallas M Barlow

Jayne E Scott

Ted T Nguy

Scott B Marcak

Anand Kulkarni

Richard A Bramley Jr

An example non-transitory machine-readable storage medium storing machine-readable instructions which when executed cause a processor to obtain stored bits stored on a flash memory, each of the stored bits in a set state or an unset state. The processor further obtains target bits, each of the target bits in the set state or the unset state, wherein each target bit corresponds to a stored bit to update the stored bit. The processor further determines whether, for one stored bit in the set state, the corresponding target bit is in the unset state. When the determination is positive, the processor sets the stored bits to the unset state and, after setting the stored bits to the unset state, updates the stored bits to match the corresponding target bits. When the determination is negative, the processor updates the stored bits to match the corresponding target bits.

Updates to flash memory based on determinations of bits to erase

A computer system includes an independent compute core; and an isolated secure data storage device to store data accessible only to the independent compute core. The independent compute core is to open an Application Program Interface (API) during runtime of the computer system in response to receiving a verified message containing secure data to be written to the secure data storage device.

Securely writing data to a secure data storage device during runtime

The examples include methods and apparatuses to store events in a queue for an EC, Storing events in a queue for an EC can include receiving a message from a core FW of an EC and identifying an event corresponding to the message. Storing events in a queue for an EC can also include accessing a priority associated with the event and adding the event and the priority to a queue to be processed by the EC.

Controller event queues

Examples herein disclose a command to control a use of a test key for installation of a test basic input output system (BIOS). The examples validate a command and replace at least a portion of a production BIOS with the test BIOS based on an allowance of the test key.

Allowing use of a test key for a BIOS installation

A separable computing system according to one example includes a display portion and a base portion. The display portion may include shared non-volatile memory to receive a base portion firmware update and a display portion private non-volatile memory to store the base portion firmware update. The display portion may further include a display portion embedded controller to send the base portion firmware update to a base portion embedded controller. The base portion may include and embedded controller to receive the base portion firmware update and a base portion private non-volatile memory to store the base portion firmware update.

Firmware update

Example implementations relate to runtime verification. In one example, runtime verification includes a processor, a shared memory storing embedded controller instructions, and an embedded controller to verify the embedded controller instructions stored in the shared memory during runtime of the processor.

Growing community of inventors

Houston, TX, United States of America

Stanley Hyojun Park