Abstract: An example computing system in accordance with an aspect of the present disclosure includes a first controller and a second controller. The first controller is to verify integrity of a first root of trust (ROT), and generate an integrity signal indicating the results. The second controller is to verify integrity of a second ROT, write the firmware image to the first controller, and verify integrity of the written firmware image.

Abstract: Examples herein disclose receiving a basic input output system (BIOS) policy change and authorizing the BIOS policy change. Upon the authorization of the BIOS policy change, a first copy of the BIOS policy is stored in a first memory accessible by a central processing unit. Additionally, a second copy of the BIOS policy change is transmitted for storage in a second memory electrically isolated from the central processing unit.

Abstract: A second physical-address-dependent code is generated from a first physical-address-dependent code using differential data, where the generating comprises converting a first physical address in a region of the first physical-address-dependent code to a second, different physical address for inclusion in a corresponding region of the second physical-address-dependent code.

Abstract: Examples herein disclose receiving a basic input output system (BIOS) policy change and authorizing the BIOS policy change. Upon the authorization of the BIOS policy change, a first copy of the BIOS policy is stored in a first memory accessible by a central processing unit. Additionally, a second copy of the BIOS policy change is transmitted for storage in a second memory electrically isolated from the central processing unit.

Abstract: Examples herein disclose receiving a basic input output system (BIOS) policy change and authorizing the BIOS policy change. Upon the authorization of the BIOS policy change, a first copy of the BIOS policy is stored in a first memory accessible by a central processing unit. Additionally, a second copy of the BIOS policy change is transmitted for storage in a second memory electrically isolated from the central processing unit.

Abstract: An example computing system in accordance with an aspect of the present disclosure includes a first controller and a second controller. The first controller is to verify integrity of a first root of trust (ROT), and generate an integrity signal indicating the results. The second controller is to verify integrity of a second ROT, write the firmware image to the first controller, and verify integrity of the written firmware image.

Abstract: Examples herein disclose receiving a basic input output system (BIOS) policy change and authorizing the BIOS policy change. Upon the authorization of the BIOS policy change, a first copy of the BIOS policy is stored in a first memory accessible by a central processing unit. Additionally, a second copy of the BIOS policy change is transmitted for storage in a second memory electrically isolated from the central processing unit.

Abstract: A second physical-address-dependent code is generated from a first physical-address-dependent code using differential data, where the generating comprises converting a first physical address in a region of the first physical-address-dependent code to a second, different physical address for inclusion in a corresponding region of the second physical-address-dependent code.

Abstract: There is provided a system and method for programming a data storage device with a password. Specifically, there is provided a method comprising initiating a password programming routine for a data storage device, and programming the data storage device with the password associated with an external storage medium, wherein the data storage device is configured to condition access to the data stored on the data storage device based on the password.

Abstract: A method according to the invention ensures optimal memory configuration in a computer: A determination is made whether performance can be improved by rearranging the DIMMs that are installed in the computer. If so, then a user of the computer is notified that the DIMMs can be rearranged to improve performance.

Abstract: A computer includes a processor, an input device and a read only memory (“ROM”). One or more passwords are flashed in the ROM in encoded form. The encoding process may include any well-known encryption or hash process. The password may include a power-on password usable to change the operating state of the computer and/or an administrator password. Such configuration data preferably also is stored on the ROM in encoded form. The encoded nature of the passwords makes it difficult for an unauthorized entity to gain access to the usable form of the passwords. Further, by storing the passwords and configuration in ROM, such as the computer's main system ROM, it is possible to control write access to the ROM because a computer's ROM can generally only be flashed using SMI code which operates outside the control of the computer's operating system and requires entry of a correct password.

Abstract: A computer includes a processor, an input device and a read only memory (“ROM”). One or more passwords are flashed in the ROM in encoded form. The encoding process may include any well-known encryption or hash process. The password may include a power-on password usable to change the operating state of the computer and/or an administrator password. Such configuration data preferably also is stored on the ROM in encoded form. The encoded nature of the passwords makes it difficult for an unauthorized entity to gain access to the usable form of the passwords. Further, by storing the passwords and configuration in ROM, such as the computer's main system ROM, it is possible to control write access to the ROM because a computer's ROM can generally only be flashed using SMI code which operates outside the control of the computer's operating system and requires entry of a correct password.

Abstract: A computer system that includes a system ROM with at least two sets of character strings, one set in English and at least one other set in a non-English language. Generally, each set of character strings includes characters, words and phrases that are translations of corresponding character strings in the other sets. In a preferred embodiment, the system ROM includes only two sets of character strings—one English and the other non-English. The non-English set of character strings is included as part of a “language module” stored or flashed into the system ROM. The character strings preferably are used to provide information and instructions to a user during system setup. When setup is run, the computer system determines whether a valid international language module is included in the system ROM. If a valid language module is included, the user is prompted to select either English or whatever international language is provided in the language module.

Abstract: A computer system provides for flashing a non-volatile memory image to a non-volatile memory and reading data from a non-volatile memory independently of an operating system. An image buffer is allocated in a volatile memory of the computer system. If flashing a non-volatile memory image to the non-volatile memory is desired, the image buffer is loaded with a portion of the non-volatile memory image. BIOS interface code is then called to place an SMI event code into a memory and to generate a system management interrupt causing the computer system to enter a system management mode. SMI handler code examines the SMI event code and calls SMI service code. Next, the image buffer is located and the portion of the non-volatile memory in the image buffer is flashed to the non-volatile memory by the SMI service code. Locating the image buffer may include locating an image header defined within the volatile memory. The image header may include a password for providing access to the non-volatile memory.