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Intel Software Guard Extensions (SGX) is a set of instruction codes implementing trusted execution environment that are built into some Intel central processing units (CPUs). ). They allow user-level and operating system code to define protected private regions of memory, called encla
A PBA environment serves as an extension of the BIOS, UEFI or boot firmware and guarantees a secure, tamper-proof environment external to the operating system as a trusted authentication layer. [2] The PBA prevents any operating system from loading until the user has confirmed he/she has the correct password to unlock the computer. [2]
BIOS interrupt calls perform hardware control or I/O functions requested by a program, return system information to the program, or do both. A key element of the purpose of BIOS calls is abstraction - the BIOS calls perform generally defined functions, and the specific details of how those functions are executed on the particular hardware of the system are encapsulated in the BIOS and hidden ...
When Secure Boot is enabled, it is initially placed in "setup" mode, which allows a public key known as the "platform key" (PK) to be written to the firmware. Once the key is written, Secure Boot enters "User" mode, where only UEFI drivers and OS boot loaders signed with the platform key can be loaded by the firmware.
The MRC in the system BIOS needs to know the specification of the attached system memory. Most of this info should be contained in the onboard SPD . With this in mind care needs to be taken when programming the appropriate values into the SPD [the part of a memory module that contains its operating requirements and specification].
GIGA-BYTE Technology Co., Ltd. (commonly referred to as Gigabyte Technology or simply Gigabyte) is a Taiwanese manufacturer and distributor of computer hardware. Gigabyte's principal business is motherboards , It shipped 4.8 million motherboards in the first quarter of 2015, which allowed it to become the leading motherboard vendor. [ 2 ]
Keyboard escapes for BIOS interfacing had been problematic, legacy booting was not supported, and it had been elected to only include UEFI booting. BIOS revision 48 has been released and resolved the problems, enabling the recognition of most low voltage SO-DIMMs, keyboard escapes and legacy booting.